Merge "Update carrier privilege check in enforceSubscriptionPlanAccess"
diff --git a/Android.bp b/Android.bp
index c12b056..084c9f5 100644
--- a/Android.bp
+++ b/Android.bp
@@ -112,7 +112,6 @@
         ":gsiservice_aidl",
         ":incidentcompanion_aidl",
         ":installd_aidl",
-        ":keystore_aidl",
         ":libaudioclient_aidl",
         ":libbinder_aidl",
         ":libbluetooth-binder-aidl",
@@ -253,42 +252,6 @@
     installable: false,
 }
 
-filegroup {
-    name: "framework-jarjar-rules",
-    srcs: ["framework-jarjar-rules.txt"],
-}
-
-filegroup {
-    name: "libincident_aidl",
-    srcs: [
-        "core/java/android/os/IIncidentDumpCallback.aidl",
-        "core/java/android/os/IIncidentManager.aidl",
-        "core/java/android/os/IIncidentReportStatusListener.aidl",
-    ],
-    path: "core/java",
-}
-
-filegroup {
-    name: "libvibrator_aidl",
-    srcs: [
-        "core/java/android/os/IExternalVibrationController.aidl",
-        "core/java/android/os/IExternalVibratorService.aidl",
-    ],
-    path: "core/java",
-}
-
-filegroup {
-    name: "libpowermanager_aidl",
-    srcs: [
-        "core/java/android/os/Temperature.aidl",
-        "core/java/android/os/CoolingDevice.aidl",
-        "core/java/android/os/IThermalEventListener.aidl",
-        "core/java/android/os/IThermalStatusListener.aidl",
-        "core/java/android/os/IThermalService.aidl",
-    ],
-    path: "core/java",
-}
-
 java_library {
     name: "framework-minus-apex",
     defaults: ["framework-aidl-export-defaults"],
@@ -297,8 +260,6 @@
         ":framework-connectivity-sources",
         "core/java/**/*.logtags",
     ],
-    // See comment on framework-atb-backward-compatibility module below
-    exclude_srcs: ["core/java/android/content/pm/AndroidTestBaseUpdater.java"],
     aidl: {
         generate_get_transaction_name: true,
     },
@@ -307,7 +268,7 @@
         "--multi-dex",
     ],
     installable: true,
-    jarjar_rules: ":framework-jarjar-rules",
+    jarjar_rules: "framework-jarjar-rules.txt",
     javac_shard_size: 150,
     plugins: [
         "view-inspector-annotation-processor",
@@ -379,98 +340,6 @@
     src: ":framework-minus-apex",
 }
 
-// A temporary build target that is conditionally included on the bootclasspath if
-// android.test.base library has been removed and which provides support for
-// maintaining backwards compatibility for APKs that target pre-P and depend on
-// android.test.base classes. This is used iff REMOVE_ATB_FROM_BCP=true is
-// specified on the build command line.
-java_library {
-    name: "framework-atb-backward-compatibility",
-    installable: true,
-    libs: ["app-compat-annotations"],
-    srcs: [
-        "core/java/android/content/pm/AndroidTestBaseUpdater.java",
-    ],
-}
-
-genrule {
-    name: "statslog-framework-java-gen",
-    tools: ["stats-log-api-gen"],
-    cmd: "$(location stats-log-api-gen) --java $(out) --module framework" +
-        " --javaPackage com.android.internal.util --javaClass FrameworkStatsLog --worksource",
-    out: ["com/android/internal/util/FrameworkStatsLog.java"],
-}
-
-java_library {
-    name: "uieventloggerlib",
-    srcs: [
-        "core/java/com/android/internal/logging/UiEvent.java",
-        "core/java/com/android/internal/logging/UiEventLogger.java",
-        "core/java/com/android/internal/logging/UiEventLoggerImpl.java",
-        "core/java/com/android/internal/logging/InstanceId.java",
-        "core/java/com/android/internal/logging/InstanceIdSequence.java",
-        ":statslog-framework-java-gen",
-    ],
-}
-
-gensrcs {
-    name: "framework-javastream-protos",
-    depfile: true,
-
-    tools: [
-        "aprotoc",
-        "protoc-gen-javastream",
-        "soong_zip",
-    ],
-
-    cmd: "mkdir -p $(genDir)/$(in) " +
-        "&& $(location aprotoc) " +
-        "  --plugin=$(location protoc-gen-javastream) " +
-        "  --dependency_out=$(depfile) " +
-        "  --javastream_out=$(genDir)/$(in) " +
-        "  -Iexternal/protobuf/src " +
-        "  -I . " +
-        "  $(in) " +
-        "&& $(location soong_zip) -jar -o $(out) -C $(genDir)/$(in) -D $(genDir)/$(in)",
-
-    srcs: [
-        ":ipconnectivity-proto-src",
-        ":libstats_atom_enum_protos",
-        ":libtombstone_proto-src",
-        "core/proto/**/*.proto",
-        "libs/incident/**/*.proto",
-    ],
-    output_extension: "srcjar",
-}
-
-gensrcs {
-    name: "framework-cppstream-protos",
-    depfile: true,
-
-    tools: [
-        "aprotoc",
-        "protoc-gen-cppstream",
-    ],
-
-    cmd: "mkdir -p $(genDir) " +
-        "&& $(location aprotoc) " +
-        "  --plugin=$(location protoc-gen-cppstream) " +
-        "  --dependency_out=$(depfile) " +
-        "  --cppstream_out=$(genDir) " +
-        "  -Iexternal/protobuf/src " +
-        "  -I . " +
-        "  $(in)",
-
-    srcs: [
-        ":ipconnectivity-proto-src",
-        ":libstats_atom_enum_protos",
-        "core/proto/**/*.proto",
-        "libs/incident/**/*.proto",
-    ],
-
-    output_extension: "proto.h",
-}
-
 filegroup {
     name: "framework-annotations",
     srcs: [
@@ -545,30 +414,6 @@
     ],
 }
 
-filegroup {
-    name: "framework-services-net-module-wifi-shared-srcs",
-    srcs: [
-        "core/java/android/net/DhcpResults.java",
-        "core/java/android/util/LocalLog.java",
-    ],
-}
-
-// keep these files in sync with the package/Tethering/jarjar-rules.txt and
-// package/Connectivity/jarjar-rules.txt for the tethering module and connectivity module.
-filegroup {
-    name: "framework-connectivity-shared-srcs",
-    srcs: [
-        "core/java/android/util/LocalLog.java",
-        // This should be android.util.IndentingPrintWriter, but it's not available in all branches.
-        "core/java/com/android/internal/util/IndentingPrintWriter.java",
-        "core/java/com/android/internal/util/IState.java",
-        "core/java/com/android/internal/util/MessageUtils.java",
-        "core/java/com/android/internal/util/State.java",
-        "core/java/com/android/internal/util/StateMachine.java",
-        "core/java/com/android/internal/util/WakeupMessage.java",
-    ],
-}
-
 // Build ext.jar
 // ============================================================
 java_library {
@@ -583,403 +428,6 @@
     dxflags: ["--core-library"],
 }
 
-// ====  java proto host library  ==============================
-java_library_host {
-    name: "platformprotos",
-    srcs: [
-        ":ipconnectivity-proto-src",
-        ":libstats_atom_enum_protos",
-        ":libstats_internal_protos",
-        ":statsd_internal_protos",
-        "cmds/am/proto/instrumentation_data.proto",
-        "cmds/statsd/src/**/*.proto",
-        "core/proto/**/*.proto",
-        "libs/incident/proto/**/*.proto",
-    ],
-    proto: {
-        include_dirs: [
-            "external/protobuf/src",
-            "frameworks/proto_logging/stats",
-        ],
-        type: "full",
-    },
-    errorprone: {
-        javacflags: ["-Xep:MissingOverride:OFF"], // b/72714520
-    },
-}
-
-// ====  java proto device library (for test only)  ==============================
-java_library {
-    name: "platformprotosnano",
-    proto: {
-        type: "nano",
-        output_params: ["store_unknown_fields=true"],
-        include_dirs: ["external/protobuf/src"],
-    },
-    exclude_srcs: [
-        "core/proto/android/privacy.proto",
-        "core/proto/android/section.proto",
-    ],
-    sdk_version: "9",
-    srcs: [
-        ":ipconnectivity-proto-src",
-        ":libstats_atom_enum_protos",
-        "core/proto/**/*.proto",
-        "libs/incident/proto/android/os/**/*.proto",
-    ],
-}
-
-// ====  java proto device library (for test only)  ==============================
-java_library {
-    name: "platformprotoslite",
-    proto: {
-        type: "lite",
-        include_dirs: ["external/protobuf/src"],
-    },
-
-    srcs: [
-        ":ipconnectivity-proto-src",
-        ":libstats_atom_enum_protos",
-        "core/proto/**/*.proto",
-        "libs/incident/proto/android/os/**/*.proto",
-    ],
-    exclude_srcs: [
-        "core/proto/android/privacy.proto",
-        "core/proto/android/section.proto",
-    ],
-    sdk_version: "core_current",
-    // Protos have lots of MissingOverride and similar.
-    errorprone: {
-        javacflags: ["-XepDisableAllChecks"],
-    },
-}
-
-// ====  c++ proto device library  ==============================
-cc_defaults {
-    name: "libplatformprotos-defaults",
-
-    proto: {
-        export_proto_headers: true,
-        include_dirs: [
-            "external/protobuf/src",
-        ],
-    },
-
-    cflags: [
-        "-Wall",
-        "-Werror",
-        "-Wno-unused-parameter",
-    ],
-
-    srcs: [
-        ":ipconnectivity-proto-src",
-        ":libstats_atom_enum_protos",
-        "core/proto/**/*.proto",
-    ],
-}
-
-cc_library {
-    name: "libplatformprotos",
-    defaults: ["libplatformprotos-defaults"],
-    host_supported: true,
-
-    target: {
-        host: {
-            proto: {
-                type: "full",
-            },
-        },
-        android: {
-            proto: {
-                type: "lite",
-            },
-            shared_libs: [
-                "libprotobuf-cpp-lite",
-            ],
-            shared: {
-                enabled: false,
-            },
-        },
-    },
-}
-
-// This library is meant for vendor code that needs to output protobuf. It links
-// against the static version of libprotobuf-cpp-lite, for which we can not guarantee
-// binary compatibility.
-cc_library {
-    name: "libplatformprotos-static",
-    defaults: ["libplatformprotos-defaults"],
-    host_supported: false,
-
-    // This is okay because this library is only built as a static library.  The C++
-    // API is not guaranteed. The proto API is guaranteed to be stable via Metrics Council,
-    // but is not authorized to be used outside of debugging.
-    vendor_available: true,
-
-    target: {
-        android: {
-            proto: {
-                type: "lite",
-            },
-            static_libs: [
-                "libprotobuf-cpp-lite",
-            ],
-            shared: {
-                enabled: false,
-            },
-        },
-    },
-}
-
-// This is the full proto version of libplatformprotos. It may only
-// be used by test code that is not shipped on the device.
-cc_library {
-    name: "libplatformprotos-test",
-    defaults: ["libplatformprotos-defaults"],
-    host_supported: false,
-
-    target: {
-        android: {
-            proto: {
-                type: "full",
-            },
-            shared: {
-                enabled: false,
-            },
-        },
-    },
-}
-
-filegroup {
-    name: "incremental_aidl",
-    srcs: [
-        "core/java/android/os/incremental/IIncrementalServiceConnector.aidl",
-        "core/java/android/os/incremental/IncrementalFileSystemControlParcel.aidl",
-    ],
-    path: "core/java",
-}
-
-filegroup {
-    name: "dataloader_aidl",
-    srcs: [
-        "core/java/android/content/pm/DataLoaderParamsParcel.aidl",
-        "core/java/android/content/pm/DataLoaderType.aidl",
-        "core/java/android/content/pm/FileSystemControlParcel.aidl",
-        "core/java/android/content/pm/IDataLoader.aidl",
-        "core/java/android/content/pm/IDataLoaderManager.aidl",
-        "core/java/android/content/pm/InstallationFileParcel.aidl",
-        "core/java/android/content/pm/InstallationFileLocation.aidl",
-        "core/java/android/content/pm/IDataLoaderStatusListener.aidl",
-        "core/java/android/content/pm/IPackageInstallerSessionFileSystemConnector.aidl",
-    ],
-    path: "core/java",
-}
-
-filegroup {
-    name: "incremental_manager_aidl",
-    srcs: [
-        "core/java/android/os/incremental/IIncrementalService.aidl",
-        "core/java/android/os/incremental/IncrementalNewFileParams.aidl",
-        "core/java/android/os/incremental/IStorageHealthListener.aidl",
-        "core/java/android/os/incremental/StorageHealthCheckParams.aidl",
-    ],
-    path: "core/java",
-}
-
-filegroup {
-    name: "activity_manager_procstate_aidl",
-    srcs: [
-        // internal only
-    ],
-    path: "core/java",
-}
-
-aidl_interface {
-    name: "libincremental_aidl",
-    unstable: true,
-    srcs: [
-        ":incremental_aidl",
-    ],
-    backend: {
-        java: {
-            sdk_version: "28",
-        },
-        cpp: {
-            enabled: true,
-        },
-        ndk: {
-            enabled: true,
-        },
-    },
-}
-
-aidl_interface {
-    name: "libdataloader_aidl",
-    unstable: true,
-    srcs: [
-        ":dataloader_aidl",
-    ],
-    imports: [
-        "libincremental_aidl",
-    ],
-    backend: {
-        java: {
-            sdk_version: "28",
-        },
-        cpp: {
-            enabled: true,
-        },
-        ndk: {
-            enabled: false,
-        },
-    },
-}
-
-aidl_interface {
-    name: "libincremental_manager_aidl",
-    unstable: true,
-    srcs: [
-        ":incremental_manager_aidl",
-    ],
-    imports: [
-        "libincremental_aidl",
-        "libdataloader_aidl",
-    ],
-    backend: {
-        java: {
-            sdk_version: "28",
-        },
-        cpp: {
-            enabled: true,
-        },
-        ndk: {
-            enabled: false,
-        },
-    },
-}
-
-// Build Rust bindings for PermissionController. Needed by keystore2.
-aidl_interface {
-    name: "android.os.permissions_aidl",
-    unstable: true,
-    local_include_dir: "core/java",
-    srcs: [
-        "core/java/android/os/IPermissionController.aidl",
-    ],
-    backend: {
-        rust: {
-            enabled: true,
-        },
-    },
-}
-
-// TODO(b/77285514): remove this once the last few hidl interfaces have been
-// updated to use hwbinder.stubs.
-java_library {
-    name: "hwbinder",
-    sdk_version: "core_platform",
-
-    srcs: [
-        "core/java/android/os/HidlSupport.java",
-        "core/java/android/annotation/IntDef.java",
-        "core/java/android/annotation/IntRange.java",
-        "core/java/android/annotation/NonNull.java",
-        "core/java/android/annotation/Nullable.java",
-        "core/java/android/annotation/SystemApi.java",
-        "core/java/android/annotation/TestApi.java",
-        "core/java/android/os/HidlMemory.java",
-        "core/java/android/os/HwBinder.java",
-        "core/java/android/os/HwBlob.java",
-        "core/java/android/os/HwParcel.java",
-        "core/java/android/os/IHwBinder.java",
-        "core/java/android/os/IHwInterface.java",
-        "core/java/android/os/DeadObjectException.java",
-        "core/java/android/os/DeadSystemException.java",
-        "core/java/android/os/NativeHandle.java",
-        "core/java/android/os/RemoteException.java",
-        "core/java/android/util/AndroidException.java",
-    ],
-    libs: ["unsupportedappusage"],
-
-    dxflags: ["--core-library"],
-    installable: false,
-}
-
-python_defaults {
-    name: "base_default",
-    version: {
-        py2: {
-            enabled: false,
-            embedded_launcher: false,
-        },
-        py3: {
-            enabled: true,
-            embedded_launcher: true,
-        },
-    },
-}
-
-python_binary_host {
-    name: "fontchain_linter",
-    defaults: ["base_default"],
-    main: "tools/fonts/fontchain_linter.py",
-    srcs: [
-        "tools/fonts/fontchain_linter.py",
-    ],
-    libs: [
-        "fontTools",
-    ],
-}
-
-// Avoid including Parcelable classes as we don't want to have two copies of
-// Parcelable cross the libraries. This is used by telephony-common (frameworks/opt/telephony)
-// and TeleService app (packages/services/Telephony).
-filegroup {
-    name: "framework-telephony-common-shared-srcs",
-    srcs: [
-        "core/java/android/os/RegistrantList.java",
-        "core/java/android/os/Registrant.java",
-        "core/java/android/util/LocalLog.java",
-        "core/java/android/util/TimeUtils.java",
-        "core/java/com/android/internal/os/SomeArgs.java",
-        "core/java/com/android/internal/util/AsyncChannel.java",
-        "core/java/com/android/internal/util/AsyncService.java",
-        "core/java/com/android/internal/util/BitwiseInputStream.java",
-        "core/java/com/android/internal/util/FastXmlSerializer.java",
-        "core/java/com/android/internal/util/HexDump.java",
-        "core/java/com/android/internal/util/IState.java",
-        "core/java/com/android/internal/util/IndentingPrintWriter.java",
-        "core/java/com/android/internal/util/Preconditions.java",
-        "core/java/com/android/internal/util/State.java",
-        "core/java/com/android/internal/util/StateMachine.java",
-        "core/java/com/android/internal/util/UserIcons.java",
-    ],
-}
-
-// Avoid including Parcelable classes as we don't want to have two copies of
-// Parcelable cross the process.
-filegroup {
-    name: "framework-cellbroadcast-shared-srcs",
-    srcs: [
-        "core/java/android/os/HandlerExecutor.java",
-        "core/java/android/util/LocalLog.java",
-        "core/java/com/android/internal/util/IState.java",
-        "core/java/com/android/internal/util/Preconditions.java",
-        "core/java/com/android/internal/util/State.java",
-        "core/java/com/android/internal/util/StateMachine.java",
-    ],
-}
-
-filegroup {
-    name: "framework-ims-common-shared-srcs",
-    srcs: [
-        "core/java/android/os/RegistrantList.java",
-        "core/java/android/os/Registrant.java",
-        "core/java/com/android/internal/os/SomeArgs.java",
-        "core/java/com/android/internal/util/Preconditions.java",
-    ],
-}
-
 // utility classes statically linked into framework-wifi and dynamically linked
 // into wifi-service
 java_library {
@@ -1008,33 +456,6 @@
     ],
 }
 
-filegroup {
-    name: "framework-wifi-util-lib-aidls",
-    srcs: ["core/java/android/content/pm/ParceledListSlice.aidl"],
-    path: "core/java",
-}
-
-// utility classes statically linked into wifi-service
-filegroup {
-    name: "framework-wifi-service-shared-srcs",
-    srcs: [
-        "core/java/android/net/InterfaceConfiguration.java",
-        "core/java/android/util/BackupUtils.java",
-        "core/java/android/util/Rational.java",
-        "core/java/com/android/internal/util/FastXmlSerializer.java",
-        "core/java/com/android/internal/util/HexDump.java",
-        "core/java/com/android/internal/util/IState.java",
-        "core/java/com/android/internal/util/MessageUtils.java",
-        "core/java/com/android/internal/util/State.java",
-        "core/java/com/android/internal/util/StateMachine.java",
-        "core/java/com/android/internal/util/WakeupMessage.java",
-    ],
-    visibility: [
-        "//frameworks/opt/net/wifi/service",
-        "//packages/modules/Wifi/service",
-    ],
-}
-
 // TODO(b/145644363): move this to under StubLibraries.bp or ApiDocs.bp
 metalava_framework_docs_args = "--manifest $(location core/res/AndroidManifest.xml) " +
     "--hide-package com.android.server " +
@@ -1068,4 +489,5 @@
 build = [
     "StubLibraries.bp",
     "ApiDocs.bp",
+    "ProtoLibraries.bp",
 ]
diff --git a/OWNERS b/OWNERS
index 710f13e..4970dd1 100644
--- a/OWNERS
+++ b/OWNERS
@@ -30,3 +30,4 @@
 per-file Android.mk = file:platform/build/soong:/OWNERS
 per-file ApiDocs.bp = file:platform/build/soong:/OWNERS
 per-file StubLibraries.bp = file:platform/build/soong:/OWNERS
+per-file ProtoLibraries.bp = file:platform/build/soong:/OWNERS
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index 2fd2e33..f67174a 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -1,5 +1,6 @@
 [Builtin Hooks]
 clang_format = true
+bpfmt = true
 
 [Builtin Hooks Options]
 # Only turn on clang-format check for the following subfolders.
@@ -16,7 +17,7 @@
 
 strings_lint_hook = ${REPO_ROOT}/frameworks/base/tools/stringslint/stringslint_sha.sh ${PREUPLOAD_COMMIT}
 
-hidden_api_txt_checksorted_hook = ${REPO_ROOT}/frameworks/base/tools/hiddenapi/checksorted_sha.sh ${PREUPLOAD_COMMIT} ${REPO_ROOT}
+hidden_api_txt_checksorted_hook = ${REPO_ROOT}/tools/platform-compat/hiddenapi/checksorted_sha.sh ${PREUPLOAD_COMMIT} ${REPO_ROOT}
 
 hidden_api_txt_exclude_hook = ${REPO_ROOT}/frameworks/base/tools/hiddenapi/exclude.sh ${PREUPLOAD_COMMIT} ${REPO_ROOT}
 
diff --git a/ProtoLibraries.bp b/ProtoLibraries.bp
new file mode 100644
index 0000000..c127449
--- /dev/null
+++ b/ProtoLibraries.bp
@@ -0,0 +1,238 @@
+// Copyright (C) 2021 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+gensrcs {
+    name: "framework-javastream-protos",
+    depfile: true,
+
+    tools: [
+        "aprotoc",
+        "protoc-gen-javastream",
+        "soong_zip",
+    ],
+
+    cmd: "mkdir -p $(genDir)/$(in) " +
+        "&& $(location aprotoc) " +
+        "  --plugin=$(location protoc-gen-javastream) " +
+        "  --dependency_out=$(depfile) " +
+        "  --javastream_out=$(genDir)/$(in) " +
+        "  -Iexternal/protobuf/src " +
+        "  -I . " +
+        "  $(in) " +
+        "&& $(location soong_zip) -jar -o $(out) -C $(genDir)/$(in) -D $(genDir)/$(in)",
+
+    srcs: [
+        ":ipconnectivity-proto-src",
+        ":libstats_atom_enum_protos",
+        ":libtombstone_proto-src",
+        "core/proto/**/*.proto",
+        "libs/incident/**/*.proto",
+    ],
+    output_extension: "srcjar",
+}
+
+gensrcs {
+    name: "framework-cppstream-protos",
+    depfile: true,
+
+    tools: [
+        "aprotoc",
+        "protoc-gen-cppstream",
+    ],
+
+    cmd: "mkdir -p $(genDir) " +
+        "&& $(location aprotoc) " +
+        "  --plugin=$(location protoc-gen-cppstream) " +
+        "  --dependency_out=$(depfile) " +
+        "  --cppstream_out=$(genDir) " +
+        "  -Iexternal/protobuf/src " +
+        "  -I . " +
+        "  $(in)",
+
+    srcs: [
+        ":ipconnectivity-proto-src",
+        ":libstats_atom_enum_protos",
+        "core/proto/**/*.proto",
+        "libs/incident/**/*.proto",
+    ],
+
+    output_extension: "proto.h",
+}
+
+// ====  java proto host library  ==============================
+java_library_host {
+    name: "platformprotos",
+    srcs: [
+        ":ipconnectivity-proto-src",
+        ":libstats_atom_enum_protos",
+        ":libstats_internal_protos",
+        ":statsd_internal_protos",
+        "cmds/am/proto/instrumentation_data.proto",
+        "cmds/statsd/src/**/*.proto",
+        "core/proto/**/*.proto",
+        "libs/incident/proto/**/*.proto",
+    ],
+    proto: {
+        include_dirs: [
+            "external/protobuf/src",
+            "frameworks/proto_logging/stats",
+        ],
+        type: "full",
+    },
+    errorprone: {
+        javacflags: ["-Xep:MissingOverride:OFF"], // b/72714520
+    },
+}
+
+// ====  java proto device library (for test only)  ==============================
+java_library {
+    name: "platformprotosnano",
+    proto: {
+        type: "nano",
+        output_params: ["store_unknown_fields=true"],
+        include_dirs: ["external/protobuf/src"],
+    },
+    exclude_srcs: [
+        "core/proto/android/privacy.proto",
+        "core/proto/android/section.proto",
+    ],
+    sdk_version: "9",
+    srcs: [
+        ":ipconnectivity-proto-src",
+        ":libstats_atom_enum_protos",
+        "core/proto/**/*.proto",
+        "libs/incident/proto/android/os/**/*.proto",
+    ],
+}
+
+// ====  java proto device library (for test only)  ==============================
+java_library {
+    name: "platformprotoslite",
+    proto: {
+        type: "lite",
+        include_dirs: ["external/protobuf/src"],
+    },
+
+    srcs: [
+        ":ipconnectivity-proto-src",
+        ":libstats_atom_enum_protos",
+        "core/proto/**/*.proto",
+        "libs/incident/proto/android/os/**/*.proto",
+    ],
+    exclude_srcs: [
+        "core/proto/android/privacy.proto",
+        "core/proto/android/section.proto",
+    ],
+    sdk_version: "core_current",
+    // Protos have lots of MissingOverride and similar.
+    errorprone: {
+        javacflags: ["-XepDisableAllChecks"],
+    },
+}
+
+// ====  c++ proto device library  ==============================
+cc_defaults {
+    name: "libplatformprotos-defaults",
+
+    proto: {
+        export_proto_headers: true,
+        include_dirs: [
+            "external/protobuf/src",
+        ],
+    },
+
+    cflags: [
+        "-Wall",
+        "-Werror",
+        "-Wno-unused-parameter",
+    ],
+
+    srcs: [
+        ":ipconnectivity-proto-src",
+        ":libstats_atom_enum_protos",
+        "core/proto/**/*.proto",
+    ],
+}
+
+cc_library {
+    name: "libplatformprotos",
+    defaults: ["libplatformprotos-defaults"],
+    host_supported: true,
+
+    target: {
+        host: {
+            proto: {
+                type: "full",
+            },
+        },
+        android: {
+            proto: {
+                type: "lite",
+            },
+            shared_libs: [
+                "libprotobuf-cpp-lite",
+            ],
+            shared: {
+                enabled: false,
+            },
+        },
+    },
+}
+
+// This library is meant for vendor code that needs to output protobuf. It links
+// against the static version of libprotobuf-cpp-lite, for which we can not guarantee
+// binary compatibility.
+cc_library {
+    name: "libplatformprotos-static",
+    defaults: ["libplatformprotos-defaults"],
+    host_supported: false,
+
+    // This is okay because this library is only built as a static library.  The C++
+    // API is not guaranteed. The proto API is guaranteed to be stable via Metrics Council,
+    // but is not authorized to be used outside of debugging.
+    vendor_available: true,
+
+    target: {
+        android: {
+            proto: {
+                type: "lite",
+            },
+            static_libs: [
+                "libprotobuf-cpp-lite",
+            ],
+            shared: {
+                enabled: false,
+            },
+        },
+    },
+}
+
+// This is the full proto version of libplatformprotos. It may only
+// be used by test code that is not shipped on the device.
+cc_library {
+    name: "libplatformprotos-test",
+    defaults: ["libplatformprotos-defaults"],
+    host_supported: false,
+
+    target: {
+        android: {
+            proto: {
+                type: "full",
+            },
+            shared: {
+                enabled: false,
+            },
+        },
+    },
+}
diff --git a/StubLibraries.bp b/StubLibraries.bp
index 1644a55..3f4e689 100644
--- a/StubLibraries.bp
+++ b/StubLibraries.bp
@@ -93,6 +93,8 @@
     ],
     api_levels_annotations_enabled: false,
     filter_packages: packages_to_document,
+    defaults_visibility: ["//visibility:private"],
+    visibility: ["//frameworks/base/api"],
 }
 
 /////////////////////////////////////////////////////////////////////
@@ -111,7 +113,7 @@
         last_released: {
             api_file: ":android-non-updatable.api.public.latest",
             removed_api_file: ":android-non-updatable-removed.api.public.latest",
-            baseline_file: ":android-incompatibilities.api.public.latest",
+            baseline_file: ":android-non-updatable-incompatibilities.api.public.latest",
         },
         api_lint: {
             enabled: true,
@@ -120,13 +122,19 @@
     },
     dists: [
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/public/api",
             dest: "android-non-updatable.txt",
             tag: ".api.txt",
         },
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/public/api",
             dest: "android-non-updatable-removed.txt",
             tag: ".removed-api.txt",
@@ -134,21 +142,18 @@
     ],
 }
 
-priv_apps =
-    " --show-annotation android.annotation.SystemApi\\(" +
-        "client=android.annotation.SystemApi.Client.PRIVILEGED_APPS" +
+priv_apps = " --show-annotation android.annotation.SystemApi\\(" +
+    "client=android.annotation.SystemApi.Client.PRIVILEGED_APPS" +
     "\\)"
 
-priv_apps_in_stubs =
-    " --show-for-stub-purposes-annotation android.annotation.SystemApi\\(" +
-        "client=android.annotation.SystemApi.Client.PRIVILEGED_APPS" +
+priv_apps_in_stubs = " --show-for-stub-purposes-annotation android.annotation.SystemApi\\(" +
+    "client=android.annotation.SystemApi.Client.PRIVILEGED_APPS" +
     "\\)"
 
 test = " --show-annotation android.annotation.TestApi"
 
-module_libs =
-    " --show-annotation android.annotation.SystemApi\\(" +
-        "client=android.annotation.SystemApi.Client.MODULE_LIBRARIES" +
+module_libs = " --show-annotation android.annotation.SystemApi\\(" +
+    "client=android.annotation.SystemApi.Client.MODULE_LIBRARIES" +
     "\\)"
 
 droidstubs {
@@ -163,7 +168,7 @@
         last_released: {
             api_file: ":android-non-updatable.api.system.latest",
             removed_api_file: ":android-non-updatable-removed.api.system.latest",
-            baseline_file: ":android-incompatibilities.api.system.latest"
+            baseline_file: ":android-non-updatable-incompatibilities.api.system.latest",
         },
         api_lint: {
             enabled: true,
@@ -173,13 +178,19 @@
     },
     dists: [
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/system/api",
             dest: "android-non-updatable.txt",
             tag: ".api.txt",
         },
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/system/api",
             dest: "android-non-updatable-removed.txt",
             tag: ".removed-api.txt",
@@ -203,25 +214,37 @@
     },
     dists: [
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/test/api",
             dest: "android.txt",
             tag: ".api.txt",
         },
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/test/api",
             dest: "removed.txt",
             tag: ".removed-api.txt",
         },
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/test/api",
             dest: "android-non-updatable.txt",
             tag: ".api.txt",
         },
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/test/api",
             dest: "android-non-updatable-removed.txt",
             tag: ".removed-api.txt",
@@ -249,13 +272,19 @@
     },
     dists: [
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/module-lib/api",
             dest: "android-non-updatable.txt",
             tag: ".api.txt",
         },
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/module-lib/api",
             dest: "android-non-updatable-removed.txt",
             tag: ".removed-api.txt",
@@ -268,50 +297,128 @@
 // from stub sources
 /////////////////////////////////////////////////////////////////////
 
+modules_public_stubs = [
+    "android.net.ipsec.ike.stubs",
+    "art.module.public.api.stubs",
+    "conscrypt.module.public.api.stubs",
+    "framework-connectivity.stubs",
+    "framework-media.stubs",
+    "framework-mediaprovider.stubs",
+    "framework-permission.stubs",
+    "framework-sdkextensions.stubs",
+    "framework-statsd.stubs",
+    "framework-tethering.stubs",
+    "framework-wifi.stubs",
+    "i18n.module.public.api.stubs",
+]
+
+modules_system_stubs = [
+    "android.net.ipsec.ike.stubs.system",
+    "art.module.public.api.stubs", // Only has public stubs
+    "conscrypt.module.public.api.stubs", // Only has public stubs
+    "framework-connectivity.stubs.system",
+    "framework-media.stubs.system",
+    "framework-mediaprovider.stubs.system",
+    "framework-permission.stubs.system",
+    "framework-sdkextensions.stubs.system",
+    "framework-statsd.stubs.system",
+    "framework-tethering.stubs.system",
+    "framework-wifi.stubs.system",
+    "i18n.module.public.api.stubs", // Only has public stubs
+]
+
 java_defaults {
-    name: "android_defaults_stubs_current",
-    libs: [ "stub-annotations" ],
-    static_libs: [
-        // License notices from art module
-        "art-notices-for-framework-stubs-jar",
-        "framework-res-package-jar", // Export package of framework-res
-    ],
-    errorprone: {
-        javacflags: [
-            "-XepDisableAllChecks",
-        ],
-    },
+    name: "android-non-updatable_defaults_stubs_current",
+    libs: ["stub-annotations"],
+    static_libs: ["framework-res-package-jar"], // Export package of framework-res
     sdk_version: "none",
     system_modules: "none",
     java_version: "1.8",
     compile_dex: true,
+    dist: {
+        targets: [
+            "sdk",
+            "win_sdk",
+        ],
+        tag: ".jar",
+        dest: "android-non-updatable.jar",
+    },
+    defaults_visibility: ["//visibility:private"],
+    visibility: ["//visibility:private"],
+}
+
+java_library_static {
+    name: "android-non-updatable.stubs",
+    defaults: ["android-non-updatable_defaults_stubs_current"],
+    srcs: [":api-stubs-docs-non-updatable"],
+    libs: modules_public_stubs,
+    dist: {
+        dir: "apistubs/android/public",
+    },
+}
+
+java_library_static {
+    name: "android-non-updatable.stubs.system",
+    defaults: ["android-non-updatable_defaults_stubs_current"],
+    srcs: [":system-api-stubs-docs-non-updatable"],
+    libs: modules_system_stubs,
+    dist: {
+        dir: "apistubs/android/system",
+    },
+}
+
+java_library_static {
+    name: "android-non-updatable.stubs.module_lib",
+    defaults: ["android-non-updatable_defaults_stubs_current"],
+    srcs: [":module-lib-api-stubs-docs-non-updatable"],
+    libs: [
+        "sdk_system_current_android",
+        // NOTE: The below can be removed once the prebuilt stub contains IKE.
+        "sdk_system_current_android.net.ipsec.ike",
+    ],
+    dist: {
+        dir: "apistubs/android/module-lib",
+    },
+}
+
+java_library_static {
+    name: "android-non-updatable.stubs.test",
+    defaults: ["android-non-updatable_defaults_stubs_current"],
+    srcs: [":test-api-stubs-docs-non-updatable"],
+    libs: modules_system_stubs,
+    dist: {
+        dir: "apistubs/android/test",
+    },
+}
+
+java_defaults {
+    name: "android_defaults_stubs_current",
+    static_libs: ["art-notices-for-framework-stubs-jar"], // License notices from art module
+    sdk_version: "none",
+    system_modules: "none",
+    java_version: "1.8",
+    compile_dex: true,
+    defaults_visibility: ["//visibility:private"],
+    visibility: ["//visibility:public"],
 }
 
 java_defaults {
     name: "android_stubs_dists_default",
     dist: {
-        targets: ["sdk", "win_sdk"],
+        targets: [
+            "sdk",
+            "win_sdk",
+        ],
         tag: ".jar",
         dest: "android.jar",
     },
+    defaults_visibility: ["//frameworks/base/services"],
 }
 
 java_library_static {
     name: "android_stubs_current",
-    srcs: [ ":api-stubs-docs-non-updatable" ],
-    static_libs: [
-        "android.net.ipsec.ike.stubs",
-        "art.module.public.api.stubs",
-        "conscrypt.module.public.api.stubs",
-        "framework-connectivity.stubs",
-        "framework-media.stubs",
-        "framework-mediaprovider.stubs",
-        "framework-permission.stubs",
-        "framework-sdkextensions.stubs",
-        "framework-statsd.stubs",
-        "framework-tethering.stubs",
-        "framework-wifi.stubs",
-        "i18n.module.public.api.stubs",
+    static_libs: modules_public_stubs + [
+        "android-non-updatable.stubs",
         "private-stub-annotations-jar",
     ],
     defaults: ["android_defaults_stubs_current"],
@@ -319,20 +426,8 @@
 
 java_library_static {
     name: "android_system_stubs_current",
-    srcs: [ ":system-api-stubs-docs-non-updatable" ],
-    static_libs: [
-        "android.net.ipsec.ike.stubs.system",
-        "art.module.public.api.stubs",
-        "conscrypt.module.public.api.stubs",
-        "framework-connectivity.stubs.system",
-        "framework-media.stubs.system",
-        "framework-mediaprovider.stubs.system",
-        "framework-permission.stubs.system",
-        "framework-sdkextensions.stubs.system",
-        "framework-statsd.stubs.system",
-        "framework-tethering.stubs.system",
-        "framework-wifi.stubs.system",
-        "i18n.module.public.api.stubs",
+    static_libs: modules_system_stubs + [
+        "android-non-updatable.stubs.system",
         "private-stub-annotations-jar",
     ],
     defaults: [
@@ -345,7 +440,10 @@
     dists: [
         {
             // Legacy dist path
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             tag: ".jar",
             dest: "android_system.jar",
         },
@@ -354,22 +452,10 @@
 
 java_library_static {
     name: "android_test_stubs_current",
-    srcs: [ ":test-api-stubs-docs-non-updatable" ],
-    static_libs: [
-        // Modules do not have test APIs, but we want to include their SystemApis, like we include
-        // the SystemApi of framework-non-updatable-sources.
-        "android.net.ipsec.ike.stubs.system",
-        "art.module.public.api.stubs",
-        "conscrypt.module.public.api.stubs",
-        "framework-connectivity.stubs.system",
-        "framework-media.stubs.system",
-        "framework-mediaprovider.stubs.system",
-        "framework-permission.stubs.system",
-        "framework-sdkextensions.stubs.system",
-        "framework-statsd.stubs.system",
-        "framework-tethering.stubs.system",
-        "framework-wifi.stubs.system",
-        "i18n.module.public.api.stubs",
+    // Modules do not have test APIs, but we want to include their SystemApis, like we include
+    // the SystemApi of framework-non-updatable-sources.
+    static_libs: modules_system_stubs + [
+        "android-non-updatable.stubs.test",
         "private-stub-annotations-jar",
     ],
     defaults: [
@@ -379,29 +465,18 @@
     dist: {
         dir: "apistubs/android/test",
     },
-    dists: [
-        {
-            // Legacy dist path
-            targets: ["sdk", "win_sdk"],
-            tag: ".jar",
-            dest: "android_test.jar",
-        },
-    ],
 }
 
 java_library_static {
     name: "android_module_lib_stubs_current",
-    srcs: [ ":module-lib-api-stubs-docs-non-updatable" ],
     defaults: [
         "android_defaults_stubs_current",
         "android_stubs_dists_default",
     ],
-    libs: [
-        "sdk_system_current_android",
-        // NOTE: The below can be removed once the prebuilt stub contains IKE.
-        "sdk_system_current_android.net.ipsec.ike",
+    static_libs: [
+        "android-non-updatable.stubs.module_lib",
+        "art.module.public.api.stubs",
     ],
-    static_libs: ["art.module.public.api.stubs"],
     dist: {
         dir: "apistubs/android/module-lib",
     },
@@ -437,6 +512,7 @@
         "metalava-manual",
     ],
     args: priv_apps,
+    visibility: ["//visibility:private"],
 }
 
 java_library_static {
@@ -446,4 +522,5 @@
     srcs: [
         ":hwbinder-stubs-docs",
     ],
+    visibility: ["//visibility:public"],
 }
diff --git a/apex/jobscheduler/service/java/com/android/server/job/controllers/ConnectivityController.java b/apex/jobscheduler/service/java/com/android/server/job/controllers/ConnectivityController.java
index a522237..5487e87 100644
--- a/apex/jobscheduler/service/java/com/android/server/job/controllers/ConnectivityController.java
+++ b/apex/jobscheduler/service/java/com/android/server/job/controllers/ConnectivityController.java
@@ -693,13 +693,6 @@
                     StateControllerProto.ConnectivityController.REQUESTED_STANDBY_EXCEPTION_UIDS,
                     mRequestedWhitelistJobs.keyAt(i));
         }
-        for (int i = 0; i < mAvailableNetworks.size(); i++) {
-            Network network = mAvailableNetworks.keyAt(i);
-            if (network != null) {
-                network.dumpDebug(proto,
-                        StateControllerProto.ConnectivityController.AVAILABLE_NETWORKS);
-            }
-        }
         for (int i = 0; i < mTrackedJobs.size(); i++) {
             final ArraySet<JobStatus> jobs = mTrackedJobs.valueAt(i);
             for (int j = 0; j < jobs.size(); j++) {
@@ -713,12 +706,6 @@
                         StateControllerProto.ConnectivityController.TrackedJob.INFO);
                 proto.write(StateControllerProto.ConnectivityController.TrackedJob.SOURCE_UID,
                         js.getSourceUid());
-                NetworkRequest rn = js.getJob().getRequiredNetwork();
-                if (rn != null) {
-                    rn.dumpDebug(proto,
-                            StateControllerProto.ConnectivityController.TrackedJob
-                                    .REQUIRED_NETWORK);
-                }
                 proto.end(jsToken);
             }
         }
diff --git a/apex/jobscheduler/service/java/com/android/server/job/controllers/JobStatus.java b/apex/jobscheduler/service/java/com/android/server/job/controllers/JobStatus.java
index ea8e7bc..a346812 100644
--- a/apex/jobscheduler/service/java/com/android/server/job/controllers/JobStatus.java
+++ b/apex/jobscheduler/service/java/com/android/server/job/controllers/JobStatus.java
@@ -1911,9 +1911,6 @@
             if (uriPerms != null) {
                 uriPerms.dump(proto, JobStatusDumpProto.JobInfo.GRANTED_URI_PERMISSIONS);
             }
-            if (job.getRequiredNetwork() != null) {
-                job.getRequiredNetwork().dumpDebug(proto, JobStatusDumpProto.JobInfo.REQUIRED_NETWORK);
-            }
             if (mTotalNetworkDownloadBytes != JobInfo.NETWORK_BYTES_UNKNOWN) {
                 proto.write(JobStatusDumpProto.JobInfo.TOTAL_NETWORK_DOWNLOAD_BYTES,
                         mTotalNetworkDownloadBytes);
@@ -2002,10 +1999,6 @@
             }
         }
 
-        if (network != null) {
-            network.dumpDebug(proto, JobStatusDumpProto.NETWORK);
-        }
-
         if (pendingWork != null) {
             for (int i = 0; i < pendingWork.size(); i++) {
                 dumpJobWorkItem(proto, JobStatusDumpProto.PENDING_WORK, pendingWork.get(i));
diff --git a/apex/media/framework/lint-baseline.xml b/apex/media/framework/lint-baseline.xml
new file mode 100644
index 0000000..29adf1d
--- /dev/null
+++ b/apex/media/framework/lint-baseline.xml
@@ -0,0 +1,246 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.TrackData#mediaFormat`"
+        errorLine1="            this.mediaFormat = mediaFormat;"
+        errorLine2="            ~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="271"
+            column="13"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.TrackData#drmInitData`"
+        errorLine1="            this.drmInitData = drmInitData;"
+        errorLine2="            ~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="272"
+            column="13"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#timeMicros`"
+        errorLine1="            this.timeMicros = timeMicros;"
+        errorLine2="            ~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="293"
+            column="13"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#position`"
+        errorLine1="            this.position = position;"
+        errorLine2="            ~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="294"
+            column="13"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#position`"
+        errorLine1="            return &quot;[timeMicros=&quot; + timeMicros + &quot;, position=&quot; + position + &quot;]&quot;;"
+        errorLine2="                                                                 ~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="300"
+            column="66"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#timeMicros`"
+        errorLine1="            return &quot;[timeMicros=&quot; + timeMicros + &quot;, position=&quot; + position + &quot;]&quot;;"
+        errorLine2="                                    ~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="300"
+            column="37"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Class requires API level R (current min is 29): `android.media.MediaParser.SeekPoint`"
+        errorLine1="            SeekPoint other = (SeekPoint) obj;"
+        errorLine2="                               ~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="311"
+            column="32"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#position`"
+        errorLine1="            return timeMicros == other.timeMicros &amp;&amp; position == other.position;"
+        errorLine2="                                                     ~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="312"
+            column="54"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#position`"
+        errorLine1="            return timeMicros == other.timeMicros &amp;&amp; position == other.position;"
+        errorLine2="                                                                 ~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="312"
+            column="66"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#timeMicros`"
+        errorLine1="            return timeMicros == other.timeMicros &amp;&amp; position == other.position;"
+        errorLine2="                   ~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="312"
+            column="20"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#timeMicros`"
+        errorLine1="            return timeMicros == other.timeMicros &amp;&amp; position == other.position;"
+        errorLine2="                                 ~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="312"
+            column="34"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#timeMicros`"
+        errorLine1="            int result = (int) timeMicros;"
+        errorLine2="                               ~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="317"
+            column="32"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#position`"
+        errorLine1="            result = 31 * result + (int) position;"
+        errorLine2="                                         ~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="318"
+            column="42"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Class requires API level R (current min is 29): `android.media.MediaParser.InputReader`"
+        errorLine1="    public interface SeekableInputReader extends InputReader {"
+        errorLine2="                                                 ~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="350"
+            column="50"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Cast from `SeekableInputReader` to `InputReader` requires API level 30 (current min is 29)"
+        errorLine1="        mExoDataReader.mInputReader = seekableInputReader;"
+        errorLine2="                                      ~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="1198"
+            column="39"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#position`"
+        errorLine1="            mPendingSeekPosition = seekPoint.position;"
+        errorLine2="                                   ~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="1284"
+            column="36"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#timeMicros`"
+        errorLine1="            mPendingSeekTimeMicros = seekPoint.timeMicros;"
+        errorLine2="                                     ~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="1285"
+            column="38"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#position`"
+        errorLine1="            mExtractor.seek(seekPoint.position, seekPoint.timeMicros);"
+        errorLine2="                            ~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="1287"
+            column="29"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.MediaParser.SeekPoint#timeMicros`"
+        errorLine1="            mExtractor.seek(seekPoint.position, seekPoint.timeMicros);"
+        errorLine2="                                                ~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="1287"
+            column="49"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level R (current min is 29): `android.media.DrmInitData.SchemeInitData#uuid`"
+        errorLine1="                if (schemeInitData.uuid.equals(schemeUuid)) {"
+        errorLine2="                    ~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="1566"
+            column="21"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Class requires API level R (current min is 29): `android.media.MediaParser.InputReader`"
+        errorLine1="    private static final class DataReaderAdapter implements InputReader {"
+        errorLine2="                                                            ~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="1859"
+            column="61"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Class requires API level R (current min is 29): `android.media.MediaParser.InputReader`"
+        errorLine1="    private static final class ParsableByteArrayAdapter implements InputReader {"
+        errorLine2="                                                                   ~~~~~~~~~~~">
+        <location
+            file="frameworks/base/apex/media/framework/java/android/media/MediaParser.java"
+            line="1892"
+            column="68"/>
+    </issue>
+
+</issues>
diff --git a/api/Android.bp b/api/Android.bp
index 485255f..6e83c08 100644
--- a/api/Android.bp
+++ b/api/Android.bp
@@ -308,6 +308,9 @@
 
 genrule {
     name: "combined-removed-dex",
+    visibility: [
+        "//frameworks/base/boot",
+    ],
     srcs: [
         ":frameworks-base-api-removed.txt",
         ":frameworks-base-api-system-removed.txt",
diff --git a/api/dump_api_shas.sh b/api/dump_api_shas.sh
new file mode 100755
index 0000000..c023b31
--- /dev/null
+++ b/api/dump_api_shas.sh
@@ -0,0 +1,56 @@
+#!/bin/bash -e
+# This script dumps the git SHAs of all commits inside api tracking directories.
+# It can used by tools wanting to track API changes, and the primary original
+# purpose is to verify verify all API change SHAs have been tracked by the
+# server-side API-council tools.
+#
+# The only argument is used to specify a git commit range to filter by.
+#
+# Example invocation (API changes between O and P):
+# frameworks/base/api/dump_api_shas.sh origin/oreo-dev..origin/pie-dev
+
+set -o pipefail
+
+eecho() { echo $@ >&2 ; }
+
+if [[ $1 == *..* ]]; then
+    exclude=${1/..*}
+    include=${1/*..}
+else
+    eecho No range or invalid range specified, defaulting to all commits from HEAD.
+    exclude=
+    include=HEAD
+fi
+
+eecho -n building queryview...
+{ source build/envsetup.sh && lunch aosp_arm && m queryview; } >/dev/null 2>&1 \
+  || { eecho failed; exit 1; }
+eecho "done"
+
+# This finds the directories where the dependant java_sdk_libs are defined
+bpdirs=$(
+  bazel query --config=queryview --output=package \
+    'kind(java_sdk_library, deps(//frameworks/base/api/..., 1))' 2>/dev/null
+  echo frameworks/base/core/api # Not a java_sdk_library.
+  echo frameworks/base/services/api # Not a java_sdk_library.
+)
+
+# Find relevant api subdirectories
+apidirs=$(
+  find $bpdirs -type f -name '*current.txt' -path '*/api/*' \
+    | xargs realpath --relative-to=$(pwd) | xargs dirname | sort | uniq
+)
+
+# Dump sorted SHAs of commits in these directories
+{ for d in $apidirs; do
+    ( cd $d
+      eecho inspecting $d
+      exclude_arg=$(test -n "$exclude" && {
+        git rev-parse -q --verify $exclude > /dev/null && echo "--not $exclude" \
+          || eecho "$d has no revision $exclude, including all commits"; } || true)
+      for f in $(find . -name '*current.txt'); do
+        git --no-pager log --pretty=format:%H --no-merges --follow $include $exclude_arg -- $f
+        echo # No trailing newline with --no-pager
+      done
+    )
+done; } | sort | uniq
diff --git a/boot/Android.bp b/boot/Android.bp
index 71edea2..844dd64 100644
--- a/boot/Android.bp
+++ b/boot/Android.bp
@@ -43,4 +43,49 @@
 // done correctly.
 platform_bootclasspath {
     name: "platform-bootclasspath",
+
+    // Additional information needed by hidden api processing.
+    hidden_api: {
+        unsupported: [
+            "hiddenapi/hiddenapi-unsupported.txt",
+        ],
+        removed: [
+            ":combined-removed-dex",
+        ],
+        max_target_r_low_priority: [
+            "hiddenapi/hiddenapi-max-target-r-loprio.txt",
+        ],
+        max_target_q: [
+            "hiddenapi/hiddenapi-max-target-q.txt",
+        ],
+        max_target_p: [
+            "hiddenapi/hiddenapi-max-target-p.txt",
+        ],
+        max_target_o_low_priority: [
+            "hiddenapi/hiddenapi-max-target-o.txt",
+        ],
+        blocked: [
+            "hiddenapi/hiddenapi-force-blocked.txt",
+        ],
+        unsupported_packages: [
+            "hiddenapi/hiddenapi-unsupported-packages.txt",
+        ],
+    },
+
+    dists: [
+        {
+            targets: ["droidcore"],
+            tag: "hiddenapi-flags.csv",
+        },
+        {
+            targets: ["droidcore"],
+            tag: "hiddenapi-index.csv",
+        },
+        {
+            targets: ["droidcore"],
+            tag: "hiddenapi-metadata.csv",
+            // Legacy name
+            dest: "hiddenapi-unsupported.csv",
+        },
+    ],
 }
diff --git a/boot/OWNERS b/boot/OWNERS
new file mode 100644
index 0000000..0648888
--- /dev/null
+++ b/boot/OWNERS
@@ -0,0 +1,2 @@
+# soong-team@ as the platform_bootclasspath module is tightly coupled with Soong
+file:platform/build/soong:/OWNERS
diff --git a/boot/hiddenapi/OWNERS b/boot/hiddenapi/OWNERS
new file mode 100644
index 0000000..74a3dc0
--- /dev/null
+++ b/boot/hiddenapi/OWNERS
@@ -0,0 +1,5 @@
+# compat-team@ for changes to hiddenapi files
+file:tools/platform-compat:/OWNERS
+
+# Escalations:
+per-file hiddenapi-* = bdc@google.com, narayan@google.com
diff --git a/config/hiddenapi-force-blocked.txt b/boot/hiddenapi/hiddenapi-force-blocked.txt
similarity index 100%
rename from config/hiddenapi-force-blocked.txt
rename to boot/hiddenapi/hiddenapi-force-blocked.txt
diff --git a/config/hiddenapi-max-target-o.txt b/boot/hiddenapi/hiddenapi-max-target-o.txt
similarity index 100%
rename from config/hiddenapi-max-target-o.txt
rename to boot/hiddenapi/hiddenapi-max-target-o.txt
diff --git a/config/hiddenapi-max-target-p.txt b/boot/hiddenapi/hiddenapi-max-target-p.txt
similarity index 100%
rename from config/hiddenapi-max-target-p.txt
rename to boot/hiddenapi/hiddenapi-max-target-p.txt
diff --git a/config/hiddenapi-max-target-q.txt b/boot/hiddenapi/hiddenapi-max-target-q.txt
similarity index 100%
rename from config/hiddenapi-max-target-q.txt
rename to boot/hiddenapi/hiddenapi-max-target-q.txt
diff --git a/config/hiddenapi-max-target-r-loprio.txt b/boot/hiddenapi/hiddenapi-max-target-r-loprio.txt
similarity index 100%
rename from config/hiddenapi-max-target-r-loprio.txt
rename to boot/hiddenapi/hiddenapi-max-target-r-loprio.txt
diff --git a/config/hiddenapi-unsupported-packages.txt b/boot/hiddenapi/hiddenapi-unsupported-packages.txt
similarity index 100%
rename from config/hiddenapi-unsupported-packages.txt
rename to boot/hiddenapi/hiddenapi-unsupported-packages.txt
diff --git a/config/hiddenapi-unsupported.txt b/boot/hiddenapi/hiddenapi-unsupported.txt
similarity index 99%
rename from config/hiddenapi-unsupported.txt
rename to boot/hiddenapi/hiddenapi-unsupported.txt
index 8a377ac..48a9782 100644
--- a/config/hiddenapi-unsupported.txt
+++ b/boot/hiddenapi/hiddenapi-unsupported.txt
@@ -209,7 +209,6 @@
 Landroid/os/storage/IStorageManager$Stub$Proxy;-><init>(Landroid/os/IBinder;)V
 Landroid/os/storage/IStorageManager$Stub;->asInterface(Landroid/os/IBinder;)Landroid/os/storage/IStorageManager;
 Landroid/security/IKeyChainService$Stub;->asInterface(Landroid/os/IBinder;)Landroid/security/IKeyChainService;
-Landroid/security/keystore/IKeystoreService$Stub;->asInterface(Landroid/os/IBinder;)Landroid/security/keystore/IKeystoreService;
 Landroid/service/dreams/IDreamManager$Stub;->asInterface(Landroid/os/IBinder;)Landroid/service/dreams/IDreamManager;
 Landroid/service/notification/INotificationListener$Stub;-><init>()V
 Landroid/service/persistentdata/IPersistentDataBlockService$Stub;->asInterface(Landroid/os/IBinder;)Landroid/service/persistentdata/IPersistentDataBlockService;
diff --git a/cmds/statsd/src/external/StatsPullerManager.cpp b/cmds/statsd/src/external/StatsPullerManager.cpp
new file mode 100644
index 0000000..99c39f6
--- /dev/null
+++ b/cmds/statsd/src/external/StatsPullerManager.cpp
@@ -0,0 +1,392 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define DEBUG false
+#include "Log.h"
+
+#include "StatsPullerManager.h"
+
+#include <cutils/log.h>
+#include <math.h>
+#include <stdint.h>
+
+#include <algorithm>
+#include <iostream>
+
+#include "../StatsService.h"
+#include "../logd/LogEvent.h"
+#include "../stats_log_util.h"
+#include "../statscompanion_util.h"
+#include "StatsCallbackPuller.h"
+#include "TrainInfoPuller.h"
+#include "statslog_statsd.h"
+
+using std::shared_ptr;
+using std::vector;
+
+namespace android {
+namespace os {
+namespace statsd {
+
+// Stores the puller as a wp to avoid holding a reference in case it is unregistered and
+// pullAtomCallbackDied is never called.
+struct PullAtomCallbackDeathCookie {
+    PullAtomCallbackDeathCookie(const wp<StatsPullerManager>& pullerManager,
+                                const PullerKey& pullerKey, const wp<StatsPuller>& puller) :
+            mPullerManager(pullerManager), mPullerKey(pullerKey), mPuller(puller) {
+    }
+
+    wp<StatsPullerManager> mPullerManager;
+    PullerKey mPullerKey;
+    wp<StatsPuller> mPuller;
+};
+
+void StatsPullerManager::pullAtomCallbackDied(void* cookie) {
+    PullAtomCallbackDeathCookie* cookie_ = static_cast<PullAtomCallbackDeathCookie*>(cookie);
+    sp<StatsPullerManager> thiz = cookie_->mPullerManager.promote();
+    if (!thiz) {
+        return;
+    }
+
+    const PullerKey& pullerKey = cookie_->mPullerKey;
+    wp<StatsPuller> puller = cookie_->mPuller;
+
+    // Erase the mapping from the puller key to the puller if the mapping still exists.
+    // Note that we are removing the StatsPuller object, which internally holds the binder
+    // IPullAtomCallback. However, each new registration creates a new StatsPuller, so this works.
+    lock_guard<mutex> lock(thiz->mLock);
+    const auto& it = thiz->kAllPullAtomInfo.find(pullerKey);
+    if (it != thiz->kAllPullAtomInfo.end() && puller != nullptr && puller == it->second) {
+        StatsdStats::getInstance().notePullerCallbackRegistrationChanged(pullerKey.atomTag,
+                                                                         /*registered=*/false);
+        thiz->kAllPullAtomInfo.erase(pullerKey);
+    }
+    // The death recipient corresponding to this specific IPullAtomCallback can never
+    // be triggered again, so free up resources.
+    delete cookie_;
+}
+
+// Values smaller than this may require to update the alarm.
+const int64_t NO_ALARM_UPDATE = INT64_MAX;
+
+StatsPullerManager::StatsPullerManager()
+    : kAllPullAtomInfo({
+              // TrainInfo.
+              {{.atomTag = util::TRAIN_INFO, .uid = AID_STATSD}, new TrainInfoPuller()},
+      }),
+      mNextPullTimeNs(NO_ALARM_UPDATE),
+      mPullAtomCallbackDeathRecipient(AIBinder_DeathRecipient_new(pullAtomCallbackDied)) {
+}
+
+bool StatsPullerManager::Pull(int tagId, const ConfigKey& configKey, const int64_t eventTimeNs,
+                              vector<shared_ptr<LogEvent>>* data, bool useUids) {
+    std::lock_guard<std::mutex> _l(mLock);
+    return PullLocked(tagId, configKey, eventTimeNs, data, useUids);
+}
+
+bool StatsPullerManager::Pull(int tagId, const vector<int32_t>& uids, const int64_t eventTimeNs,
+                              vector<std::shared_ptr<LogEvent>>* data, bool useUids) {
+    std::lock_guard<std::mutex> _l(mLock);
+    return PullLocked(tagId, uids, eventTimeNs, data, useUids);
+}
+
+bool StatsPullerManager::PullLocked(int tagId, const ConfigKey& configKey,
+                                    const int64_t eventTimeNs, vector<shared_ptr<LogEvent>>* data,
+                                    bool useUids) {
+    vector<int32_t> uids;
+    if (useUids) {
+        auto uidProviderIt = mPullUidProviders.find(configKey);
+        if (uidProviderIt == mPullUidProviders.end()) {
+            ALOGE("Error pulling tag %d. No pull uid provider for config key %s", tagId,
+                  configKey.ToString().c_str());
+            StatsdStats::getInstance().notePullUidProviderNotFound(tagId);
+            return false;
+        }
+        sp<PullUidProvider> pullUidProvider = uidProviderIt->second.promote();
+        if (pullUidProvider == nullptr) {
+            ALOGE("Error pulling tag %d, pull uid provider for config %s is gone.", tagId,
+                  configKey.ToString().c_str());
+            StatsdStats::getInstance().notePullUidProviderNotFound(tagId);
+            return false;
+        }
+        uids = pullUidProvider->getPullAtomUids(tagId);
+    }
+    return PullLocked(tagId, uids, eventTimeNs, data, useUids);
+}
+
+bool StatsPullerManager::PullLocked(int tagId, const vector<int32_t>& uids,
+                                    const int64_t eventTimeNs, vector<shared_ptr<LogEvent>>* data,
+                                    bool useUids) {
+    VLOG("Initiating pulling %d", tagId);
+    if (useUids) {
+        for (int32_t uid : uids) {
+            PullerKey key = {.atomTag = tagId, .uid = uid};
+            auto pullerIt = kAllPullAtomInfo.find(key);
+            if (pullerIt != kAllPullAtomInfo.end()) {
+                bool ret = pullerIt->second->Pull(eventTimeNs, data);
+                VLOG("pulled %zu items", data->size());
+                if (!ret) {
+                    StatsdStats::getInstance().notePullFailed(tagId);
+                }
+                return ret;
+            }
+        }
+        StatsdStats::getInstance().notePullerNotFound(tagId);
+        ALOGW("StatsPullerManager: Unknown tagId %d", tagId);
+        return false;  // Return early since we don't know what to pull.
+    } else {
+        PullerKey key = {.atomTag = tagId, .uid = -1};
+        auto pullerIt = kAllPullAtomInfo.find(key);
+        if (pullerIt != kAllPullAtomInfo.end()) {
+            bool ret = pullerIt->second->Pull(eventTimeNs, data);
+            VLOG("pulled %zu items", data->size());
+            if (!ret) {
+                StatsdStats::getInstance().notePullFailed(tagId);
+            }
+            return ret;
+        }
+        ALOGW("StatsPullerManager: Unknown tagId %d", tagId);
+        return false;  // Return early since we don't know what to pull.
+    }
+}
+
+bool StatsPullerManager::PullerForMatcherExists(int tagId) const {
+    // Pulled atoms might be registered after we parse the config, so just make sure the id is in
+    // an appropriate range.
+    return isVendorPulledAtom(tagId) || isPulledAtom(tagId);
+}
+
+void StatsPullerManager::updateAlarmLocked() {
+    if (mNextPullTimeNs == NO_ALARM_UPDATE) {
+        VLOG("No need to set alarms. Skipping");
+        return;
+    }
+
+    // TODO(b/151045771): do not hold a lock while making a binder call
+    if (mStatsCompanionService != nullptr) {
+        mStatsCompanionService->setPullingAlarm(mNextPullTimeNs / 1000000);
+    } else {
+        VLOG("StatsCompanionService not available. Alarm not set.");
+    }
+    return;
+}
+
+void StatsPullerManager::SetStatsCompanionService(
+        shared_ptr<IStatsCompanionService> statsCompanionService) {
+    std::lock_guard<std::mutex> _l(mLock);
+    shared_ptr<IStatsCompanionService> tmpForLock = mStatsCompanionService;
+    mStatsCompanionService = statsCompanionService;
+    for (const auto& pulledAtom : kAllPullAtomInfo) {
+        pulledAtom.second->SetStatsCompanionService(statsCompanionService);
+    }
+    if (mStatsCompanionService != nullptr) {
+        updateAlarmLocked();
+    }
+}
+
+void StatsPullerManager::RegisterReceiver(int tagId, const ConfigKey& configKey,
+                                          wp<PullDataReceiver> receiver, int64_t nextPullTimeNs,
+                                          int64_t intervalNs) {
+    std::lock_guard<std::mutex> _l(mLock);
+    auto& receivers = mReceivers[{.atomTag = tagId, .configKey = configKey}];
+    for (auto it = receivers.begin(); it != receivers.end(); it++) {
+        if (it->receiver == receiver) {
+            VLOG("Receiver already registered of %d", (int)receivers.size());
+            return;
+        }
+    }
+    ReceiverInfo receiverInfo;
+    receiverInfo.receiver = receiver;
+
+    // Round it to the nearest minutes. This is the limit of alarm manager.
+    // In practice, we should always have larger buckets.
+    int64_t roundedIntervalNs = intervalNs / NS_PER_SEC / 60 * NS_PER_SEC * 60;
+    // Scheduled pulling should be at least 1 min apart.
+    // This can be lower in cts tests, in which case we round it to 1 min.
+    if (roundedIntervalNs < 60 * (int64_t)NS_PER_SEC) {
+        roundedIntervalNs = 60 * (int64_t)NS_PER_SEC;
+    }
+
+    receiverInfo.intervalNs = roundedIntervalNs;
+    receiverInfo.nextPullTimeNs = nextPullTimeNs;
+    receivers.push_back(receiverInfo);
+
+    // There is only one alarm for all pulled events. So only set it to the smallest denom.
+    if (nextPullTimeNs < mNextPullTimeNs) {
+        VLOG("Updating next pull time %lld", (long long)mNextPullTimeNs);
+        mNextPullTimeNs = nextPullTimeNs;
+        updateAlarmLocked();
+    }
+    VLOG("Puller for tagId %d registered of %d", tagId, (int)receivers.size());
+}
+
+void StatsPullerManager::UnRegisterReceiver(int tagId, const ConfigKey& configKey,
+                                            wp<PullDataReceiver> receiver) {
+    std::lock_guard<std::mutex> _l(mLock);
+    auto receiversIt = mReceivers.find({.atomTag = tagId, .configKey = configKey});
+    if (receiversIt == mReceivers.end()) {
+        VLOG("Unknown pull code or no receivers: %d", tagId);
+        return;
+    }
+    std::list<ReceiverInfo>& receivers = receiversIt->second;
+    for (auto it = receivers.begin(); it != receivers.end(); it++) {
+        if (receiver == it->receiver) {
+            receivers.erase(it);
+            VLOG("Puller for tagId %d unregistered of %d", tagId, (int)receivers.size());
+            return;
+        }
+    }
+}
+
+void StatsPullerManager::RegisterPullUidProvider(const ConfigKey& configKey,
+                                                 wp<PullUidProvider> provider) {
+    std::lock_guard<std::mutex> _l(mLock);
+    mPullUidProviders[configKey] = provider;
+}
+
+void StatsPullerManager::UnregisterPullUidProvider(const ConfigKey& configKey,
+                                                   wp<PullUidProvider> provider) {
+    std::lock_guard<std::mutex> _l(mLock);
+    const auto& it = mPullUidProviders.find(configKey);
+    if (it != mPullUidProviders.end() && it->second == provider) {
+        mPullUidProviders.erase(it);
+    }
+}
+
+void StatsPullerManager::OnAlarmFired(int64_t elapsedTimeNs) {
+    std::lock_guard<std::mutex> _l(mLock);
+    int64_t wallClockNs = getWallClockNs();
+
+    int64_t minNextPullTimeNs = NO_ALARM_UPDATE;
+
+    vector<pair<const ReceiverKey*, vector<ReceiverInfo*>>> needToPull;
+    for (auto& pair : mReceivers) {
+        vector<ReceiverInfo*> receivers;
+        if (pair.second.size() != 0) {
+            for (ReceiverInfo& receiverInfo : pair.second) {
+                if (receiverInfo.nextPullTimeNs <= elapsedTimeNs) {
+                    receivers.push_back(&receiverInfo);
+                } else {
+                    if (receiverInfo.nextPullTimeNs < minNextPullTimeNs) {
+                        minNextPullTimeNs = receiverInfo.nextPullTimeNs;
+                    }
+                }
+            }
+            if (receivers.size() > 0) {
+                needToPull.push_back(make_pair(&pair.first, receivers));
+            }
+        }
+    }
+    for (const auto& pullInfo : needToPull) {
+        vector<shared_ptr<LogEvent>> data;
+        bool pullSuccess = PullLocked(pullInfo.first->atomTag, pullInfo.first->configKey,
+                                      elapsedTimeNs, &data);
+        if (!pullSuccess) {
+            VLOG("pull failed at %lld, will try again later", (long long)elapsedTimeNs);
+        }
+
+        // Convention is to mark pull atom timestamp at request time.
+        // If we pull at t0, puller starts at t1, finishes at t2, and send back
+        // at t3, we mark t0 as its timestamp, which should correspond to its
+        // triggering event, such as condition change at t0.
+        // Here the triggering event is alarm fired from AlarmManager.
+        // In ValueMetricProducer and GaugeMetricProducer we do same thing
+        // when pull on condition change, etc.
+        for (auto& event : data) {
+            event->setElapsedTimestampNs(elapsedTimeNs);
+            event->setLogdWallClockTimestampNs(wallClockNs);
+        }
+
+        for (const auto& receiverInfo : pullInfo.second) {
+            sp<PullDataReceiver> receiverPtr = receiverInfo->receiver.promote();
+            if (receiverPtr != nullptr) {
+                receiverPtr->onDataPulled(data, pullSuccess, elapsedTimeNs);
+                // We may have just come out of a coma, compute next pull time.
+                int numBucketsAhead =
+                        (elapsedTimeNs - receiverInfo->nextPullTimeNs) / receiverInfo->intervalNs;
+                receiverInfo->nextPullTimeNs += (numBucketsAhead + 1) * receiverInfo->intervalNs;
+                if (receiverInfo->nextPullTimeNs < minNextPullTimeNs) {
+                    minNextPullTimeNs = receiverInfo->nextPullTimeNs;
+                }
+            } else {
+                VLOG("receiver already gone.");
+            }
+        }
+    }
+
+    VLOG("mNextPullTimeNs: %lld updated to %lld", (long long)mNextPullTimeNs,
+         (long long)minNextPullTimeNs);
+    mNextPullTimeNs = minNextPullTimeNs;
+    updateAlarmLocked();
+}
+
+int StatsPullerManager::ForceClearPullerCache() {
+    std::lock_guard<std::mutex> _l(mLock);
+    int totalCleared = 0;
+    for (const auto& pulledAtom : kAllPullAtomInfo) {
+        totalCleared += pulledAtom.second->ForceClearCache();
+    }
+    return totalCleared;
+}
+
+int StatsPullerManager::ClearPullerCacheIfNecessary(int64_t timestampNs) {
+    std::lock_guard<std::mutex> _l(mLock);
+    int totalCleared = 0;
+    for (const auto& pulledAtom : kAllPullAtomInfo) {
+        totalCleared += pulledAtom.second->ClearCacheIfNecessary(timestampNs);
+    }
+    return totalCleared;
+}
+
+void StatsPullerManager::RegisterPullAtomCallback(const int uid, const int32_t atomTag,
+                                                  const int64_t coolDownNs, const int64_t timeoutNs,
+                                                  const vector<int32_t>& additiveFields,
+                                                  const shared_ptr<IPullAtomCallback>& callback,
+                                                  bool useUid) {
+    std::lock_guard<std::mutex> _l(mLock);
+    VLOG("RegisterPullerCallback: adding puller for tag %d", atomTag);
+
+    if (callback == nullptr) {
+        ALOGW("SetPullAtomCallback called with null callback for atom %d.", atomTag);
+        return;
+    }
+
+    StatsdStats::getInstance().notePullerCallbackRegistrationChanged(atomTag, /*registered=*/true);
+    int64_t actualCoolDownNs = coolDownNs < kMinCoolDownNs ? kMinCoolDownNs : coolDownNs;
+    int64_t actualTimeoutNs = timeoutNs > kMaxTimeoutNs ? kMaxTimeoutNs : timeoutNs;
+
+    sp<StatsCallbackPuller> puller = new StatsCallbackPuller(atomTag, callback, actualCoolDownNs,
+                                                             actualTimeoutNs, additiveFields);
+    PullerKey key = {.atomTag = atomTag, .uid = useUid ? uid : -1};
+    AIBinder_linkToDeath(callback->asBinder().get(), mPullAtomCallbackDeathRecipient.get(),
+                         new PullAtomCallbackDeathCookie(this, key, puller));
+    kAllPullAtomInfo[key] = puller;
+}
+
+void StatsPullerManager::UnregisterPullAtomCallback(const int uid, const int32_t atomTag,
+                                                    bool useUids) {
+    std::lock_guard<std::mutex> _l(mLock);
+    PullerKey key = {.atomTag = atomTag, .uid = useUids ? uid : -1};
+    if (kAllPullAtomInfo.find(key) != kAllPullAtomInfo.end()) {
+        StatsdStats::getInstance().notePullerCallbackRegistrationChanged(atomTag,
+                                                                         /*registered=*/false);
+        kAllPullAtomInfo.erase(key);
+    }
+}
+
+}  // namespace statsd
+}  // namespace os
+}  // namespace android
diff --git a/cmds/statsd/src/logd/LogEvent.cpp b/cmds/statsd/src/logd/LogEvent.cpp
new file mode 100644
index 0000000..4f03172
--- /dev/null
+++ b/cmds/statsd/src/logd/LogEvent.cpp
@@ -0,0 +1,618 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define DEBUG false  // STOPSHIP if true
+#include "logd/LogEvent.h"
+
+#include <android-base/stringprintf.h>
+#include <android/binder_ibinder.h>
+#include <log/log.h>
+#include <private/android_filesystem_config.h>
+
+#include "annotations.h"
+#include "stats_log_util.h"
+#include "statslog_statsd.h"
+
+namespace android {
+namespace os {
+namespace statsd {
+
+// for TrainInfo experiment id serialization
+const int FIELD_ID_EXPERIMENT_ID = 1;
+
+using namespace android::util;
+using android::base::StringPrintf;
+using android::util::ProtoOutputStream;
+using std::string;
+using std::vector;
+
+// stats_event.h socket types. Keep in sync.
+/* ERRORS */
+#define ERROR_NO_TIMESTAMP 0x1
+#define ERROR_NO_ATOM_ID 0x2
+#define ERROR_OVERFLOW 0x4
+#define ERROR_ATTRIBUTION_CHAIN_TOO_LONG 0x8
+#define ERROR_TOO_MANY_KEY_VALUE_PAIRS 0x10
+#define ERROR_ANNOTATION_DOES_NOT_FOLLOW_FIELD 0x20
+#define ERROR_INVALID_ANNOTATION_ID 0x40
+#define ERROR_ANNOTATION_ID_TOO_LARGE 0x80
+#define ERROR_TOO_MANY_ANNOTATIONS 0x100
+#define ERROR_TOO_MANY_FIELDS 0x200
+#define ERROR_INVALID_VALUE_TYPE 0x400
+#define ERROR_STRING_NOT_NULL_TERMINATED 0x800
+
+/* TYPE IDS */
+#define INT32_TYPE 0x00
+#define INT64_TYPE 0x01
+#define STRING_TYPE 0x02
+#define LIST_TYPE 0x03
+#define FLOAT_TYPE 0x04
+#define BOOL_TYPE 0x05
+#define BYTE_ARRAY_TYPE 0x06
+#define OBJECT_TYPE 0x07
+#define KEY_VALUE_PAIRS_TYPE 0x08
+#define ATTRIBUTION_CHAIN_TYPE 0x09
+#define ERROR_TYPE 0x0F
+
+LogEvent::LogEvent(int32_t uid, int32_t pid)
+    : mLogdTimestampNs(time(nullptr)), mLogUid(uid), mLogPid(pid) {
+}
+
+LogEvent::LogEvent(const string& trainName, int64_t trainVersionCode, bool requiresStaging,
+                   bool rollbackEnabled, bool requiresLowLatencyMonitor, int32_t state,
+                   const std::vector<uint8_t>& experimentIds, int32_t userId) {
+    mLogdTimestampNs = getWallClockNs();
+    mElapsedTimestampNs = getElapsedRealtimeNs();
+    mTagId = util::BINARY_PUSH_STATE_CHANGED;
+    mLogUid = AIBinder_getCallingUid();
+    mLogPid = AIBinder_getCallingPid();
+
+    mValues.push_back(FieldValue(Field(mTagId, getSimpleField(1)), Value(trainName)));
+    mValues.push_back(FieldValue(Field(mTagId, getSimpleField(2)), Value(trainVersionCode)));
+    mValues.push_back(FieldValue(Field(mTagId, getSimpleField(3)), Value((int)requiresStaging)));
+    mValues.push_back(FieldValue(Field(mTagId, getSimpleField(4)), Value((int)rollbackEnabled)));
+    mValues.push_back(
+            FieldValue(Field(mTagId, getSimpleField(5)), Value((int)requiresLowLatencyMonitor)));
+    mValues.push_back(FieldValue(Field(mTagId, getSimpleField(6)), Value(state)));
+    mValues.push_back(FieldValue(Field(mTagId, getSimpleField(7)), Value(experimentIds)));
+    mValues.push_back(FieldValue(Field(mTagId, getSimpleField(8)), Value(userId)));
+}
+
+LogEvent::LogEvent(int64_t wallClockTimestampNs, int64_t elapsedTimestampNs,
+                   const InstallTrainInfo& trainInfo) {
+    mLogdTimestampNs = wallClockTimestampNs;
+    mElapsedTimestampNs = elapsedTimestampNs;
+    mTagId = util::TRAIN_INFO;
+
+    mValues.push_back(
+            FieldValue(Field(mTagId, getSimpleField(1)), Value(trainInfo.trainVersionCode)));
+    std::vector<uint8_t> experimentIdsProto;
+    writeExperimentIdsToProto(trainInfo.experimentIds, &experimentIdsProto);
+    mValues.push_back(FieldValue(Field(mTagId, getSimpleField(2)), Value(experimentIdsProto)));
+    mValues.push_back(FieldValue(Field(mTagId, getSimpleField(3)), Value(trainInfo.trainName)));
+    mValues.push_back(FieldValue(Field(mTagId, getSimpleField(4)), Value(trainInfo.status)));
+}
+
+void LogEvent::parseInt32(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) {
+    int32_t value = readNextValue<int32_t>();
+    addToValues(pos, depth, value, last);
+    parseAnnotations(numAnnotations);
+}
+
+void LogEvent::parseInt64(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) {
+    int64_t value = readNextValue<int64_t>();
+    addToValues(pos, depth, value, last);
+    parseAnnotations(numAnnotations);
+}
+
+void LogEvent::parseString(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) {
+    int32_t numBytes = readNextValue<int32_t>();
+    if ((uint32_t)numBytes > mRemainingLen) {
+        mValid = false;
+        return;
+    }
+
+    string value = string((char*)mBuf, numBytes);
+    mBuf += numBytes;
+    mRemainingLen -= numBytes;
+    addToValues(pos, depth, value, last);
+    parseAnnotations(numAnnotations);
+}
+
+void LogEvent::parseFloat(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) {
+    float value = readNextValue<float>();
+    addToValues(pos, depth, value, last);
+    parseAnnotations(numAnnotations);
+}
+
+void LogEvent::parseBool(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) {
+    // cast to int32_t because FieldValue does not support bools
+    int32_t value = (int32_t)readNextValue<uint8_t>();
+    addToValues(pos, depth, value, last);
+    parseAnnotations(numAnnotations);
+}
+
+void LogEvent::parseByteArray(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) {
+    int32_t numBytes = readNextValue<int32_t>();
+    if ((uint32_t)numBytes > mRemainingLen) {
+        mValid = false;
+        return;
+    }
+
+    vector<uint8_t> value(mBuf, mBuf + numBytes);
+    mBuf += numBytes;
+    mRemainingLen -= numBytes;
+    addToValues(pos, depth, value, last);
+    parseAnnotations(numAnnotations);
+}
+
+void LogEvent::parseKeyValuePairs(int32_t* pos, int32_t depth, bool* last, uint8_t numAnnotations) {
+    int32_t numPairs = readNextValue<uint8_t>();
+
+    for (pos[1] = 1; pos[1] <= numPairs; pos[1]++) {
+        last[1] = (pos[1] == numPairs);
+
+        // parse key
+        pos[2] = 1;
+        parseInt32(pos, /*depth=*/2, last, /*numAnnotations=*/0);
+
+        // parse value
+        last[2] = true;
+
+        uint8_t typeInfo = readNextValue<uint8_t>();
+        switch (getTypeId(typeInfo)) {
+            case INT32_TYPE:
+                pos[2] = 2;  // pos[2] determined by index of type in KeyValuePair in atoms.proto
+                parseInt32(pos, /*depth=*/2, last, /*numAnnotations=*/0);
+                break;
+            case INT64_TYPE:
+                pos[2] = 3;
+                parseInt64(pos, /*depth=*/2, last, /*numAnnotations=*/0);
+                break;
+            case STRING_TYPE:
+                pos[2] = 4;
+                parseString(pos, /*depth=*/2, last, /*numAnnotations=*/0);
+                break;
+            case FLOAT_TYPE:
+                pos[2] = 5;
+                parseFloat(pos, /*depth=*/2, last, /*numAnnotations=*/0);
+                break;
+            default:
+                mValid = false;
+        }
+    }
+
+    parseAnnotations(numAnnotations);
+
+    pos[1] = pos[2] = 1;
+    last[1] = last[2] = false;
+}
+
+void LogEvent::parseAttributionChain(int32_t* pos, int32_t depth, bool* last,
+                                     uint8_t numAnnotations) {
+    const unsigned int firstUidInChainIndex = mValues.size();
+    const int32_t numNodes = readNextValue<uint8_t>();
+    for (pos[1] = 1; pos[1] <= numNodes; pos[1]++) {
+        last[1] = (pos[1] == numNodes);
+
+        // parse uid
+        pos[2] = 1;
+        parseInt32(pos, /*depth=*/2, last, /*numAnnotations=*/0);
+
+        // parse tag
+        pos[2] = 2;
+        last[2] = true;
+        parseString(pos, /*depth=*/2, last, /*numAnnotations=*/0);
+    }
+
+    if (mValues.size() - 1 > INT8_MAX) {
+        mValid = false;
+    } else if (mValues.size() - 1 > firstUidInChainIndex) {
+        // At least one node was successfully parsed.
+        mAttributionChainStartIndex = static_cast<int8_t>(firstUidInChainIndex);
+        mAttributionChainEndIndex = static_cast<int8_t>(mValues.size() - 1);
+    }
+
+    if (mValid) {
+        parseAnnotations(numAnnotations, firstUidInChainIndex);
+    }
+
+    pos[1] = pos[2] = 1;
+    last[1] = last[2] = false;
+}
+
+// Assumes that mValues is not empty
+bool LogEvent::checkPreviousValueType(Type expected) {
+    return mValues[mValues.size() - 1].mValue.getType() == expected;
+}
+
+void LogEvent::parseIsUidAnnotation(uint8_t annotationType) {
+    if (mValues.empty() || mValues.size() - 1 > INT8_MAX || !checkPreviousValueType(INT)
+            || annotationType != BOOL_TYPE) {
+        mValid = false;
+        return;
+    }
+
+    bool isUid = readNextValue<uint8_t>();
+    if (isUid) mUidFieldIndex = static_cast<int8_t>(mValues.size() - 1);
+    mValues[mValues.size() - 1].mAnnotations.setUidField(isUid);
+}
+
+void LogEvent::parseTruncateTimestampAnnotation(uint8_t annotationType) {
+    if (!mValues.empty() || annotationType != BOOL_TYPE) {
+        mValid = false;
+        return;
+    }
+
+    mTruncateTimestamp = readNextValue<uint8_t>();
+}
+
+void LogEvent::parsePrimaryFieldAnnotation(uint8_t annotationType) {
+    if (mValues.empty() || annotationType != BOOL_TYPE) {
+        mValid = false;
+        return;
+    }
+
+    const bool primaryField = readNextValue<uint8_t>();
+    mValues[mValues.size() - 1].mAnnotations.setPrimaryField(primaryField);
+}
+
+void LogEvent::parsePrimaryFieldFirstUidAnnotation(uint8_t annotationType,
+                                                   int firstUidInChainIndex) {
+    if (mValues.empty() || annotationType != BOOL_TYPE || -1 == firstUidInChainIndex) {
+        mValid = false;
+        return;
+    }
+
+    if (static_cast<int>(mValues.size() - 1) < firstUidInChainIndex) { // AttributionChain is empty.
+        mValid = false;
+        android_errorWriteLog(0x534e4554, "174485572");
+        return;
+    }
+
+    const bool primaryField = readNextValue<uint8_t>();
+    mValues[firstUidInChainIndex].mAnnotations.setPrimaryField(primaryField);
+}
+
+void LogEvent::parseExclusiveStateAnnotation(uint8_t annotationType) {
+    if (mValues.empty() || annotationType != BOOL_TYPE) {
+        mValid = false;
+        return;
+    }
+
+    if (mValues.size() - 1 > INT8_MAX) {
+        android_errorWriteLog(0x534e4554, "174488848");
+        mValid = false;
+        return;
+    }
+
+    const bool exclusiveState = readNextValue<uint8_t>();
+    mExclusiveStateFieldIndex = static_cast<int8_t>(mValues.size() - 1);
+    mValues[getExclusiveStateFieldIndex()].mAnnotations.setExclusiveState(exclusiveState);
+}
+
+void LogEvent::parseTriggerStateResetAnnotation(uint8_t annotationType) {
+    if (mValues.empty() || annotationType != INT32_TYPE) {
+        mValid = false;
+        return;
+    }
+
+    mResetState = readNextValue<int32_t>();
+}
+
+void LogEvent::parseStateNestedAnnotation(uint8_t annotationType) {
+    if (mValues.empty() || annotationType != BOOL_TYPE) {
+        mValid = false;
+        return;
+    }
+
+    bool nested = readNextValue<uint8_t>();
+    mValues[mValues.size() - 1].mAnnotations.setNested(nested);
+}
+
+// firstUidInChainIndex is a default parameter that is only needed when parsing
+// annotations for attribution chains.
+void LogEvent::parseAnnotations(uint8_t numAnnotations, int firstUidInChainIndex) {
+    for (uint8_t i = 0; i < numAnnotations; i++) {
+        uint8_t annotationId = readNextValue<uint8_t>();
+        uint8_t annotationType = readNextValue<uint8_t>();
+
+        switch (annotationId) {
+            case ANNOTATION_ID_IS_UID:
+                parseIsUidAnnotation(annotationType);
+                break;
+            case ANNOTATION_ID_TRUNCATE_TIMESTAMP:
+                parseTruncateTimestampAnnotation(annotationType);
+                break;
+            case ANNOTATION_ID_PRIMARY_FIELD:
+                parsePrimaryFieldAnnotation(annotationType);
+                break;
+            case ANNOTATION_ID_PRIMARY_FIELD_FIRST_UID:
+                parsePrimaryFieldFirstUidAnnotation(annotationType, firstUidInChainIndex);
+                break;
+            case ANNOTATION_ID_EXCLUSIVE_STATE:
+                parseExclusiveStateAnnotation(annotationType);
+                break;
+            case ANNOTATION_ID_TRIGGER_STATE_RESET:
+                parseTriggerStateResetAnnotation(annotationType);
+                break;
+            case ANNOTATION_ID_STATE_NESTED:
+                parseStateNestedAnnotation(annotationType);
+                break;
+            default:
+                mValid = false;
+                return;
+        }
+    }
+}
+
+// This parsing logic is tied to the encoding scheme used in StatsEvent.java and
+// stats_event.c
+bool LogEvent::parseBuffer(uint8_t* buf, size_t len) {
+    mBuf = buf;
+    mRemainingLen = (uint32_t)len;
+
+    int32_t pos[] = {1, 1, 1};
+    bool last[] = {false, false, false};
+
+    // Beginning of buffer is OBJECT_TYPE | NUM_FIELDS | TIMESTAMP | ATOM_ID
+    uint8_t typeInfo = readNextValue<uint8_t>();
+    if (getTypeId(typeInfo) != OBJECT_TYPE) mValid = false;
+
+    uint8_t numElements = readNextValue<uint8_t>();
+    if (numElements < 2 || numElements > 127) mValid = false;
+
+    typeInfo = readNextValue<uint8_t>();
+    if (getTypeId(typeInfo) != INT64_TYPE) mValid = false;
+    mElapsedTimestampNs = readNextValue<int64_t>();
+    numElements--;
+
+    typeInfo = readNextValue<uint8_t>();
+    if (getTypeId(typeInfo) != INT32_TYPE) mValid = false;
+    mTagId = readNextValue<int32_t>();
+    numElements--;
+    parseAnnotations(getNumAnnotations(typeInfo));  // atom-level annotations
+
+    for (pos[0] = 1; pos[0] <= numElements && mValid; pos[0]++) {
+        last[0] = (pos[0] == numElements);
+
+        typeInfo = readNextValue<uint8_t>();
+        uint8_t typeId = getTypeId(typeInfo);
+
+        switch (typeId) {
+            case BOOL_TYPE:
+                parseBool(pos, /*depth=*/0, last, getNumAnnotations(typeInfo));
+                break;
+            case INT32_TYPE:
+                parseInt32(pos, /*depth=*/0, last, getNumAnnotations(typeInfo));
+                break;
+            case INT64_TYPE:
+                parseInt64(pos, /*depth=*/0, last, getNumAnnotations(typeInfo));
+                break;
+            case FLOAT_TYPE:
+                parseFloat(pos, /*depth=*/0, last, getNumAnnotations(typeInfo));
+                break;
+            case BYTE_ARRAY_TYPE:
+                parseByteArray(pos, /*depth=*/0, last, getNumAnnotations(typeInfo));
+                break;
+            case STRING_TYPE:
+                parseString(pos, /*depth=*/0, last, getNumAnnotations(typeInfo));
+                break;
+            case KEY_VALUE_PAIRS_TYPE:
+                parseKeyValuePairs(pos, /*depth=*/0, last, getNumAnnotations(typeInfo));
+                break;
+            case ATTRIBUTION_CHAIN_TYPE:
+                parseAttributionChain(pos, /*depth=*/0, last, getNumAnnotations(typeInfo));
+                break;
+            case ERROR_TYPE:
+                /* mErrorBitmask =*/ readNextValue<int32_t>();
+                mValid = false;
+                break;
+            default:
+                mValid = false;
+                break;
+        }
+    }
+
+    if (mRemainingLen != 0) mValid = false;
+    mBuf = nullptr;
+    return mValid;
+}
+
+uint8_t LogEvent::getTypeId(uint8_t typeInfo) {
+    return typeInfo & 0x0F;  // type id in lower 4 bytes
+}
+
+uint8_t LogEvent::getNumAnnotations(uint8_t typeInfo) {
+    return (typeInfo >> 4) & 0x0F;  // num annotations in upper 4 bytes
+}
+
+int64_t LogEvent::GetLong(size_t key, status_t* err) const {
+    // TODO(b/110561208): encapsulate the magical operations in Field struct as static functions
+    int field = getSimpleField(key);
+    for (const auto& value : mValues) {
+        if (value.mField.getField() == field) {
+            if (value.mValue.getType() == LONG) {
+                return value.mValue.long_value;
+            } else if (value.mValue.getType() == INT) {
+                return value.mValue.int_value;
+            } else {
+                *err = BAD_TYPE;
+                return 0;
+            }
+        }
+        if ((size_t)value.mField.getPosAtDepth(0) > key) {
+            break;
+        }
+    }
+
+    *err = BAD_INDEX;
+    return 0;
+}
+
+int LogEvent::GetInt(size_t key, status_t* err) const {
+    int field = getSimpleField(key);
+    for (const auto& value : mValues) {
+        if (value.mField.getField() == field) {
+            if (value.mValue.getType() == INT) {
+                return value.mValue.int_value;
+            } else {
+                *err = BAD_TYPE;
+                return 0;
+            }
+        }
+        if ((size_t)value.mField.getPosAtDepth(0) > key) {
+            break;
+        }
+    }
+
+    *err = BAD_INDEX;
+    return 0;
+}
+
+const char* LogEvent::GetString(size_t key, status_t* err) const {
+    int field = getSimpleField(key);
+    for (const auto& value : mValues) {
+        if (value.mField.getField() == field) {
+            if (value.mValue.getType() == STRING) {
+                return value.mValue.str_value.c_str();
+            } else {
+                *err = BAD_TYPE;
+                return 0;
+            }
+        }
+        if ((size_t)value.mField.getPosAtDepth(0) > key) {
+            break;
+        }
+    }
+
+    *err = BAD_INDEX;
+    return NULL;
+}
+
+bool LogEvent::GetBool(size_t key, status_t* err) const {
+    int field = getSimpleField(key);
+    for (const auto& value : mValues) {
+        if (value.mField.getField() == field) {
+            if (value.mValue.getType() == INT) {
+                return value.mValue.int_value != 0;
+            } else if (value.mValue.getType() == LONG) {
+                return value.mValue.long_value != 0;
+            } else {
+                *err = BAD_TYPE;
+                return false;
+            }
+        }
+        if ((size_t)value.mField.getPosAtDepth(0) > key) {
+            break;
+        }
+    }
+
+    *err = BAD_INDEX;
+    return false;
+}
+
+float LogEvent::GetFloat(size_t key, status_t* err) const {
+    int field = getSimpleField(key);
+    for (const auto& value : mValues) {
+        if (value.mField.getField() == field) {
+            if (value.mValue.getType() == FLOAT) {
+                return value.mValue.float_value;
+            } else {
+                *err = BAD_TYPE;
+                return 0.0;
+            }
+        }
+        if ((size_t)value.mField.getPosAtDepth(0) > key) {
+            break;
+        }
+    }
+
+    *err = BAD_INDEX;
+    return 0.0;
+}
+
+std::vector<uint8_t> LogEvent::GetStorage(size_t key, status_t* err) const {
+    int field = getSimpleField(key);
+    for (const auto& value : mValues) {
+        if (value.mField.getField() == field) {
+            if (value.mValue.getType() == STORAGE) {
+                return value.mValue.storage_value;
+            } else {
+                *err = BAD_TYPE;
+                return vector<uint8_t>();
+            }
+        }
+        if ((size_t)value.mField.getPosAtDepth(0) > key) {
+            break;
+        }
+    }
+
+    *err = BAD_INDEX;
+    return vector<uint8_t>();
+}
+
+string LogEvent::ToString() const {
+    string result;
+    result += StringPrintf("{ uid(%d) %lld %lld (%d)", mLogUid, (long long)mLogdTimestampNs,
+                           (long long)mElapsedTimestampNs, mTagId);
+    for (const auto& value : mValues) {
+        result +=
+                StringPrintf("%#x", value.mField.getField()) + "->" + value.mValue.toString() + " ";
+    }
+    result += " }";
+    return result;
+}
+
+void LogEvent::ToProto(ProtoOutputStream& protoOutput) const {
+    writeFieldValueTreeToStream(mTagId, getValues(), &protoOutput);
+}
+
+bool LogEvent::hasAttributionChain(std::pair<int, int>* indexRange) const {
+    if (mAttributionChainStartIndex == -1 || mAttributionChainEndIndex == -1) {
+        return false;
+    }
+
+    if (nullptr != indexRange) {
+        indexRange->first = static_cast<int>(mAttributionChainStartIndex);
+        indexRange->second = static_cast<int>(mAttributionChainEndIndex);
+    }
+
+    return true;
+}
+
+void writeExperimentIdsToProto(const std::vector<int64_t>& experimentIds,
+                               std::vector<uint8_t>* protoOut) {
+    ProtoOutputStream proto;
+    for (const auto& expId : experimentIds) {
+        proto.write(FIELD_TYPE_INT64 | FIELD_COUNT_REPEATED | FIELD_ID_EXPERIMENT_ID,
+                    (long long)expId);
+    }
+
+    protoOut->resize(proto.size());
+    size_t pos = 0;
+    sp<ProtoReader> reader = proto.data();
+    while (reader->readBuffer() != NULL) {
+        size_t toRead = reader->currentToRead();
+        std::memcpy(protoOut->data() + pos, reader->readBuffer(), toRead);
+        pos += toRead;
+        reader->move(toRead);
+    }
+}
+
+}  // namespace statsd
+}  // namespace os
+}  // namespace android
diff --git a/cmds/statsd/tests/LogEvent_test.cpp b/cmds/statsd/tests/LogEvent_test.cpp
new file mode 100644
index 0000000..aed2547
--- /dev/null
+++ b/cmds/statsd/tests/LogEvent_test.cpp
@@ -0,0 +1,481 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "src/logd/LogEvent.h"
+
+#include <gtest/gtest.h>
+
+#include "frameworks/base/cmds/statsd/src/atoms.pb.h"
+#include "frameworks/base/core/proto/android/stats/launcher/launcher.pb.h"
+#include "log/log_event_list.h"
+#include "stats_event.h"
+
+#ifdef __ANDROID__
+
+namespace android {
+namespace os {
+namespace statsd {
+
+using std::string;
+using std::vector;
+using util::ProtoOutputStream;
+using util::ProtoReader;
+
+namespace {
+
+Field getField(int32_t tag, const vector<int32_t>& pos, int32_t depth, const vector<bool>& last) {
+    Field f(tag, (int32_t*)pos.data(), depth);
+
+    // For loop starts at 1 because the last field at depth 0 is not decorated.
+    for (int i = 1; i < depth; i++) {
+        if (last[i]) f.decorateLastPos(i);
+    }
+
+    return f;
+}
+
+void createIntWithBoolAnnotationLogEvent(LogEvent* logEvent, uint8_t annotationId,
+                                         bool annotationValue) {
+    AStatsEvent* statsEvent = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(statsEvent, /*atomId=*/100);
+    AStatsEvent_writeInt32(statsEvent, 10);
+    AStatsEvent_addBoolAnnotation(statsEvent, annotationId, annotationValue);
+    AStatsEvent_build(statsEvent);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
+    EXPECT_TRUE(logEvent->parseBuffer(buf, size));
+
+    AStatsEvent_release(statsEvent);
+}
+
+void createIntWithIntAnnotationLogEvent(LogEvent* logEvent, uint8_t annotationId,
+                                        int annotationValue) {
+    AStatsEvent* statsEvent = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(statsEvent, /*atomId=*/100);
+    AStatsEvent_writeInt32(statsEvent, 10);
+    AStatsEvent_addInt32Annotation(statsEvent, annotationId, annotationValue);
+    AStatsEvent_build(statsEvent);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
+    EXPECT_TRUE(logEvent->parseBuffer(buf, size));
+
+    AStatsEvent_release(statsEvent);
+}
+
+}  // anonymous namespace
+
+TEST(LogEventTest, TestPrimitiveParsing) {
+    AStatsEvent* event = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(event, 100);
+    AStatsEvent_writeInt32(event, 10);
+    AStatsEvent_writeInt64(event, 0x123456789);
+    AStatsEvent_writeFloat(event, 2.0);
+    AStatsEvent_writeBool(event, true);
+    AStatsEvent_build(event);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(event, &size);
+
+    LogEvent logEvent(/*uid=*/1000, /*pid=*/1001);
+    EXPECT_TRUE(logEvent.parseBuffer(buf, size));
+
+    EXPECT_EQ(100, logEvent.GetTagId());
+    EXPECT_EQ(1000, logEvent.GetUid());
+    EXPECT_EQ(1001, logEvent.GetPid());
+    EXPECT_FALSE(logEvent.hasAttributionChain());
+
+    const vector<FieldValue>& values = logEvent.getValues();
+    ASSERT_EQ(4, values.size());
+
+    const FieldValue& int32Item = values[0];
+    Field expectedField = getField(100, {1, 1, 1}, 0, {false, false, false});
+    EXPECT_EQ(expectedField, int32Item.mField);
+    EXPECT_EQ(Type::INT, int32Item.mValue.getType());
+    EXPECT_EQ(10, int32Item.mValue.int_value);
+
+    const FieldValue& int64Item = values[1];
+    expectedField = getField(100, {2, 1, 1}, 0, {false, false, false});
+    EXPECT_EQ(expectedField, int64Item.mField);
+    EXPECT_EQ(Type::LONG, int64Item.mValue.getType());
+    EXPECT_EQ(0x123456789, int64Item.mValue.long_value);
+
+    const FieldValue& floatItem = values[2];
+    expectedField = getField(100, {3, 1, 1}, 0, {false, false, false});
+    EXPECT_EQ(expectedField, floatItem.mField);
+    EXPECT_EQ(Type::FLOAT, floatItem.mValue.getType());
+    EXPECT_EQ(2.0, floatItem.mValue.float_value);
+
+    const FieldValue& boolItem = values[3];
+    expectedField = getField(100, {4, 1, 1}, 0, {true, false, false});
+    EXPECT_EQ(expectedField, boolItem.mField);
+    EXPECT_EQ(Type::INT, boolItem.mValue.getType());  // FieldValue does not support boolean type
+    EXPECT_EQ(1, boolItem.mValue.int_value);
+
+    AStatsEvent_release(event);
+}
+
+TEST(LogEventTest, TestStringAndByteArrayParsing) {
+    AStatsEvent* event = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(event, 100);
+    string str = "test";
+    AStatsEvent_writeString(event, str.c_str());
+    AStatsEvent_writeByteArray(event, (uint8_t*)str.c_str(), str.length());
+    AStatsEvent_build(event);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(event, &size);
+
+    LogEvent logEvent(/*uid=*/1000, /*pid=*/1001);
+    EXPECT_TRUE(logEvent.parseBuffer(buf, size));
+
+    EXPECT_EQ(100, logEvent.GetTagId());
+    EXPECT_EQ(1000, logEvent.GetUid());
+    EXPECT_EQ(1001, logEvent.GetPid());
+    EXPECT_FALSE(logEvent.hasAttributionChain());
+
+    const vector<FieldValue>& values = logEvent.getValues();
+    ASSERT_EQ(2, values.size());
+
+    const FieldValue& stringItem = values[0];
+    Field expectedField = getField(100, {1, 1, 1}, 0, {false, false, false});
+    EXPECT_EQ(expectedField, stringItem.mField);
+    EXPECT_EQ(Type::STRING, stringItem.mValue.getType());
+    EXPECT_EQ(str, stringItem.mValue.str_value);
+
+    const FieldValue& storageItem = values[1];
+    expectedField = getField(100, {2, 1, 1}, 0, {true, false, false});
+    EXPECT_EQ(expectedField, storageItem.mField);
+    EXPECT_EQ(Type::STORAGE, storageItem.mValue.getType());
+    vector<uint8_t> expectedValue = {'t', 'e', 's', 't'};
+    EXPECT_EQ(expectedValue, storageItem.mValue.storage_value);
+
+    AStatsEvent_release(event);
+}
+
+TEST(LogEventTest, TestEmptyString) {
+    AStatsEvent* event = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(event, 100);
+    string empty = "";
+    AStatsEvent_writeString(event, empty.c_str());
+    AStatsEvent_build(event);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(event, &size);
+
+    LogEvent logEvent(/*uid=*/1000, /*pid=*/1001);
+    EXPECT_TRUE(logEvent.parseBuffer(buf, size));
+
+    EXPECT_EQ(100, logEvent.GetTagId());
+    EXPECT_EQ(1000, logEvent.GetUid());
+    EXPECT_EQ(1001, logEvent.GetPid());
+    EXPECT_FALSE(logEvent.hasAttributionChain());
+
+    const vector<FieldValue>& values = logEvent.getValues();
+    ASSERT_EQ(1, values.size());
+
+    const FieldValue& item = values[0];
+    Field expectedField = getField(100, {1, 1, 1}, 0, {true, false, false});
+    EXPECT_EQ(expectedField, item.mField);
+    EXPECT_EQ(Type::STRING, item.mValue.getType());
+    EXPECT_EQ(empty, item.mValue.str_value);
+
+    AStatsEvent_release(event);
+}
+
+TEST(LogEventTest, TestByteArrayWithNullCharacter) {
+    AStatsEvent* event = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(event, 100);
+    uint8_t message[] = {'\t', 'e', '\0', 's', 't'};
+    AStatsEvent_writeByteArray(event, message, 5);
+    AStatsEvent_build(event);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(event, &size);
+
+    LogEvent logEvent(/*uid=*/1000, /*pid=*/1001);
+    EXPECT_TRUE(logEvent.parseBuffer(buf, size));
+
+    EXPECT_EQ(100, logEvent.GetTagId());
+    EXPECT_EQ(1000, logEvent.GetUid());
+    EXPECT_EQ(1001, logEvent.GetPid());
+
+    const vector<FieldValue>& values = logEvent.getValues();
+    ASSERT_EQ(1, values.size());
+
+    const FieldValue& item = values[0];
+    Field expectedField = getField(100, {1, 1, 1}, 0, {true, false, false});
+    EXPECT_EQ(expectedField, item.mField);
+    EXPECT_EQ(Type::STORAGE, item.mValue.getType());
+    vector<uint8_t> expectedValue(message, message + 5);
+    EXPECT_EQ(expectedValue, item.mValue.storage_value);
+
+    AStatsEvent_release(event);
+}
+
+TEST(LogEventTest, TestAttributionChain) {
+    AStatsEvent* event = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(event, 100);
+
+    string tag1 = "tag1";
+    string tag2 = "tag2";
+
+    uint32_t uids[] = {1001, 1002};
+    const char* tags[] = {tag1.c_str(), tag2.c_str()};
+
+    AStatsEvent_writeAttributionChain(event, uids, tags, 2);
+    AStatsEvent_build(event);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(event, &size);
+
+    LogEvent logEvent(/*uid=*/1000, /*pid=*/1001);
+    EXPECT_TRUE(logEvent.parseBuffer(buf, size));
+
+    EXPECT_EQ(100, logEvent.GetTagId());
+    EXPECT_EQ(1000, logEvent.GetUid());
+    EXPECT_EQ(1001, logEvent.GetPid());
+
+    const vector<FieldValue>& values = logEvent.getValues();
+    ASSERT_EQ(4, values.size());  // 2 per attribution node
+
+    std::pair<int, int> attrIndexRange;
+    EXPECT_TRUE(logEvent.hasAttributionChain(&attrIndexRange));
+    EXPECT_EQ(0, attrIndexRange.first);
+    EXPECT_EQ(3, attrIndexRange.second);
+
+    // Check first attribution node
+    const FieldValue& uid1Item = values[0];
+    Field expectedField = getField(100, {1, 1, 1}, 2, {true, false, false});
+    EXPECT_EQ(expectedField, uid1Item.mField);
+    EXPECT_EQ(Type::INT, uid1Item.mValue.getType());
+    EXPECT_EQ(1001, uid1Item.mValue.int_value);
+
+    const FieldValue& tag1Item = values[1];
+    expectedField = getField(100, {1, 1, 2}, 2, {true, false, true});
+    EXPECT_EQ(expectedField, tag1Item.mField);
+    EXPECT_EQ(Type::STRING, tag1Item.mValue.getType());
+    EXPECT_EQ(tag1, tag1Item.mValue.str_value);
+
+    // Check second attribution nodes
+    const FieldValue& uid2Item = values[2];
+    expectedField = getField(100, {1, 2, 1}, 2, {true, true, false});
+    EXPECT_EQ(expectedField, uid2Item.mField);
+    EXPECT_EQ(Type::INT, uid2Item.mValue.getType());
+    EXPECT_EQ(1002, uid2Item.mValue.int_value);
+
+    const FieldValue& tag2Item = values[3];
+    expectedField = getField(100, {1, 2, 2}, 2, {true, true, true});
+    EXPECT_EQ(expectedField, tag2Item.mField);
+    EXPECT_EQ(Type::STRING, tag2Item.mValue.getType());
+    EXPECT_EQ(tag2, tag2Item.mValue.str_value);
+
+    AStatsEvent_release(event);
+}
+
+TEST(LogEventTest, TestAnnotationIdIsUid) {
+    LogEvent event(/*uid=*/0, /*pid=*/0);
+    createIntWithBoolAnnotationLogEvent(&event, ANNOTATION_ID_IS_UID, true);
+
+    const vector<FieldValue>& values = event.getValues();
+    ASSERT_EQ(values.size(), 1);
+    EXPECT_EQ(event.getUidFieldIndex(), 0);
+}
+
+TEST(LogEventTest, TestAnnotationIdStateNested) {
+    LogEvent event(/*uid=*/0, /*pid=*/0);
+    createIntWithBoolAnnotationLogEvent(&event, ANNOTATION_ID_STATE_NESTED, true);
+
+    const vector<FieldValue>& values = event.getValues();
+    ASSERT_EQ(values.size(), 1);
+    EXPECT_TRUE(values[0].mAnnotations.isNested());
+}
+
+TEST(LogEventTest, TestPrimaryFieldAnnotation) {
+    LogEvent event(/*uid=*/0, /*pid=*/0);
+    createIntWithBoolAnnotationLogEvent(&event, ANNOTATION_ID_PRIMARY_FIELD, true);
+
+    const vector<FieldValue>& values = event.getValues();
+    ASSERT_EQ(values.size(), 1);
+    EXPECT_TRUE(values[0].mAnnotations.isPrimaryField());
+}
+
+TEST(LogEventTest, TestExclusiveStateAnnotation) {
+    LogEvent event(/*uid=*/0, /*pid=*/0);
+    createIntWithBoolAnnotationLogEvent(&event, ANNOTATION_ID_EXCLUSIVE_STATE, true);
+
+    const vector<FieldValue>& values = event.getValues();
+    ASSERT_EQ(values.size(), 1);
+    EXPECT_TRUE(values[0].mAnnotations.isExclusiveState());
+}
+
+TEST(LogEventTest, TestPrimaryFieldFirstUidAnnotation) {
+    // Event has 10 ints and then an attribution chain
+    int numInts = 10;
+    int firstUidInChainIndex = numInts;
+    string tag1 = "tag1";
+    string tag2 = "tag2";
+    uint32_t uids[] = {1001, 1002};
+    const char* tags[] = {tag1.c_str(), tag2.c_str()};
+
+    // Construct AStatsEvent
+    AStatsEvent* statsEvent = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(statsEvent, 100);
+    for (int i = 0; i < numInts; i++) {
+        AStatsEvent_writeInt32(statsEvent, 10);
+    }
+    AStatsEvent_writeAttributionChain(statsEvent, uids, tags, 2);
+    AStatsEvent_addBoolAnnotation(statsEvent, ANNOTATION_ID_PRIMARY_FIELD_FIRST_UID, true);
+    AStatsEvent_build(statsEvent);
+
+    // Construct LogEvent
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(statsEvent, &size);
+    LogEvent logEvent(/*uid=*/0, /*pid=*/0);
+    EXPECT_TRUE(logEvent.parseBuffer(buf, size));
+    AStatsEvent_release(statsEvent);
+
+    // Check annotation
+    const vector<FieldValue>& values = logEvent.getValues();
+    ASSERT_EQ(values.size(), numInts + 4);
+    EXPECT_TRUE(values[firstUidInChainIndex].mAnnotations.isPrimaryField());
+}
+
+TEST(LogEventTest, TestResetStateAnnotation) {
+    int32_t resetState = 10;
+    LogEvent event(/*uid=*/0, /*pid=*/0);
+    createIntWithIntAnnotationLogEvent(&event, ANNOTATION_ID_TRIGGER_STATE_RESET, resetState);
+
+    const vector<FieldValue>& values = event.getValues();
+    ASSERT_EQ(values.size(), 1);
+    EXPECT_EQ(event.getResetState(), resetState);
+}
+
+TEST(LogEventTest, TestExclusiveStateAnnotationAfterTooManyFields) {
+    AStatsEvent* event = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(event, 100);
+
+    const unsigned int numAttributionNodes = 64;
+
+    uint32_t uids[numAttributionNodes];
+    const char* tags[numAttributionNodes];
+
+    for (unsigned int i = 1; i <= numAttributionNodes; i++) {
+        uids[i-1] = i;
+        tags[i-1] = std::to_string(i).c_str();
+    }
+
+    AStatsEvent_writeAttributionChain(event, uids, tags, numAttributionNodes);
+    AStatsEvent_writeInt32(event, 1);
+    AStatsEvent_addBoolAnnotation(event, ANNOTATION_ID_EXCLUSIVE_STATE, true);
+
+    AStatsEvent_build(event);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(event, &size);
+
+    LogEvent logEvent(/*uid=*/1000, /*pid=*/1001);
+    EXPECT_FALSE(logEvent.parseBuffer(buf, size));
+    EXPECT_EQ(-1, logEvent.getExclusiveStateFieldIndex());
+
+    AStatsEvent_release(event);
+}
+
+TEST(LogEventTest, TestUidAnnotationAfterTooManyFields) {
+    AStatsEvent* event = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(event, 100);
+
+    const unsigned int numAttributionNodes = 64;
+
+    uint32_t uids[numAttributionNodes];
+    const char* tags[numAttributionNodes];
+
+    for (unsigned int i = 1; i <= numAttributionNodes; i++) {
+        uids[i-1] = i;
+        tags[i-1] = std::to_string(i).c_str();
+    }
+
+    AStatsEvent_writeAttributionChain(event, uids, tags, numAttributionNodes);
+    AStatsEvent_writeInt32(event, 1);
+    AStatsEvent_addBoolAnnotation(event, ANNOTATION_ID_IS_UID, true);
+
+    AStatsEvent_build(event);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(event, &size);
+
+    LogEvent logEvent(/*uid=*/1000, /*pid=*/1001);
+    EXPECT_FALSE(logEvent.parseBuffer(buf, size));
+    EXPECT_EQ(-1, logEvent.getUidFieldIndex());
+
+    AStatsEvent_release(event);
+}
+
+TEST(LogEventTest, TestAttributionChainEndIndexAfterTooManyFields) {
+    AStatsEvent* event = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(event, 100);
+
+    const unsigned int numAttributionNodes = 65;
+
+    uint32_t uids[numAttributionNodes];
+    const char* tags[numAttributionNodes];
+
+    for (unsigned int i = 1; i <= numAttributionNodes; i++) {
+        uids[i-1] = i;
+        tags[i-1] = std::to_string(i).c_str();
+    }
+
+    AStatsEvent_writeAttributionChain(event, uids, tags, numAttributionNodes);
+
+    AStatsEvent_build(event);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(event, &size);
+
+    LogEvent logEvent(/*uid=*/1000, /*pid=*/1001);
+    EXPECT_FALSE(logEvent.parseBuffer(buf, size));
+    EXPECT_FALSE(logEvent.hasAttributionChain());
+
+    AStatsEvent_release(event);
+}
+
+TEST(LogEventTest, TestEmptyAttributionChainWithPrimaryFieldFirstUidAnnotation) {
+    AStatsEvent* event = AStatsEvent_obtain();
+    AStatsEvent_setAtomId(event, 100);
+
+    uint32_t uids[] = {};
+    const char* tags[] = {};
+
+    AStatsEvent_writeInt32(event, 10);
+    AStatsEvent_writeAttributionChain(event, uids, tags, 0);
+    AStatsEvent_addBoolAnnotation(event, ANNOTATION_ID_PRIMARY_FIELD_FIRST_UID, true);
+
+    AStatsEvent_build(event);
+
+    size_t size;
+    uint8_t* buf = AStatsEvent_getBuffer(event, &size);
+
+    LogEvent logEvent(/*uid=*/1000, /*pid=*/1001);
+    EXPECT_FALSE(logEvent.parseBuffer(buf, size));
+
+    AStatsEvent_release(event);
+}
+
+}  // namespace statsd
+}  // namespace os
+}  // namespace android
+#else
+GTEST_LOG_(INFO) << "This test does nothing.\n";
+#endif
diff --git a/config/OWNERS b/config/OWNERS
index 001038d..0691dbc 100644
--- a/config/OWNERS
+++ b/config/OWNERS
@@ -1,14 +1,8 @@
 include /ZYGOTE_OWNERS
 
-# compat-team@ for changes to hiddenapi files
-
-per-file hiddenapi-* = andreionea@google.com, mathewi@google.com, satayev@google.com
-
 # art-team@ manages the boot image profiles
 per-file boot-* = calin@google.com, mathieuc@google.com, ngeoffray@google.com
 per-file dirty-image-objects = calin@google.com, mathieuc@google.com, ngeoffray@google.com
 per-file generate-preloaded-classes.sh = calin@google.com, mathieuc@google.com, ngeoffray@google.com
 per-file preloaded-classes* = calin@google.com, mathieuc@google.com, ngeoffray@google.com
 
-# Escalations:
-per-file hiddenapi-* = bdc@google.com, narayan@google.com
diff --git a/core/api/current.txt b/core/api/current.txt
index b944ac9..2a16084 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -978,7 +978,7 @@
     field public static final int multiArch = 16843918; // 0x101048e
     field public static final int multiprocess = 16842771; // 0x1010013
     field public static final int name = 16842755; // 0x1010003
-    field public static final int nativeHeapZeroInit = 16844314; // 0x101061a
+    field public static final int nativeHeapZeroInitialized = 16844314; // 0x101061a
     field public static final int navigationBarColor = 16843858; // 0x1010452
     field public static final int navigationBarDividerColor = 16844141; // 0x101056d
     field public static final int navigationContentDescription = 16843969; // 0x10104c1
@@ -11466,7 +11466,7 @@
     method public static CharSequence getCategoryTitle(android.content.Context, int);
     method public int getGwpAsanMode();
     method public int getMemtagMode();
-    method @Nullable public Boolean isNativeHeapZeroInit();
+    method public int getNativeHeapZeroInitialized();
     method public boolean isProfileableByShell();
     method public boolean isResourceOverlay();
     method public boolean isVirtualPreload();
@@ -11520,6 +11520,9 @@
     field public static final int MEMTAG_DEFAULT = -1; // 0xffffffff
     field public static final int MEMTAG_OFF = 0; // 0x0
     field public static final int MEMTAG_SYNC = 2; // 0x2
+    field public static final int ZEROINIT_DEFAULT = -1; // 0xffffffff
+    field public static final int ZEROINIT_DISABLED = 0; // 0x0
+    field public static final int ZEROINIT_ENABLED = 1; // 0x1
     field public String appComponentFactory;
     field public String backupAgentName;
     field public int category;
@@ -29284,7 +29287,6 @@
     field public static final String HARDWARE;
     field public static final String HOST;
     field public static final String ID;
-    field public static final boolean IS_DEBUGGABLE;
     field public static final String MANUFACTURER;
     field public static final String MODEL;
     field @NonNull public static final String ODM_SKU;
@@ -33998,8 +34000,8 @@
 
   public static final class SimPhonebookContract.SimRecords {
     method @NonNull public static android.net.Uri getContentUri(int, int);
-    method @WorkerThread public static int getEncodedNameLength(@NonNull android.content.ContentResolver, @NonNull String);
-    method @NonNull public static android.net.Uri getItemUri(int, int, int);
+    method @IntRange(from=0) @WorkerThread public static int getEncodedNameLength(@NonNull android.content.ContentResolver, @NonNull String);
+    method @NonNull public static android.net.Uri getItemUri(int, int, @IntRange(from=1) int);
     field public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/sim-contact_v2";
     field public static final String CONTENT_TYPE = "vnd.android.cursor.dir/sim-contact_v2";
     field public static final String ELEMENTARY_FILE_TYPE = "elementary_file_type";
diff --git a/core/api/module-lib-current.txt b/core/api/module-lib-current.txt
index 3b7a617..b1e3e14 100644
--- a/core/api/module-lib-current.txt
+++ b/core/api/module-lib-current.txt
@@ -23,13 +23,10 @@
 package android.content {
 
   public abstract class Context {
+    field public static final String PAC_PROXY_SERVICE = "pac_proxy";
     field public static final String TEST_NETWORK_SERVICE = "test_network";
   }
 
-  public class Intent implements java.lang.Cloneable android.os.Parcelable {
-    field public static final String ACTION_CLEAR_DNS_CACHE = "android.intent.action.CLEAR_DNS_CACHE";
-  }
-
 }
 
 package android.net {
@@ -101,7 +98,7 @@
   }
 
   public class VpnManager {
-    field @Deprecated public static final int TYPE_VPN_LEGACY = 3; // 0x3
+    field public static final int TYPE_VPN_LEGACY = 3; // 0x3
     field public static final int TYPE_VPN_NONE = -1; // 0xffffffff
     field public static final int TYPE_VPN_OEM = 4; // 0x4
     field public static final int TYPE_VPN_PLATFORM = 2; // 0x2
@@ -120,6 +117,10 @@
     method public final void markVintfStability();
   }
 
+  public class Build {
+    method public static boolean isDebuggable();
+  }
+
   public static class Build.VERSION {
     field public static final int FIRST_SDK_INT;
   }
diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index 3f11b72..e376fb8 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -1480,6 +1480,7 @@
     method public boolean disableBLE();
     method public boolean enableBLE();
     method @RequiresPermission(android.Manifest.permission.BLUETOOTH_ADMIN) public boolean enableNoAutoConnect();
+    method @RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED) public void generateLocalOobData(int, @NonNull java.util.concurrent.Executor, @NonNull android.bluetooth.BluetoothAdapter.OobDataCallback);
     method @RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED) public long getDiscoveryEndMillis();
     method public boolean isBleScanAlwaysAvailable();
     method public boolean isLeEnabled();
@@ -1491,12 +1492,20 @@
     field public static final int ACTIVE_DEVICE_ALL = 2; // 0x2
     field public static final int ACTIVE_DEVICE_AUDIO = 0; // 0x0
     field public static final int ACTIVE_DEVICE_PHONE_CALL = 1; // 0x1
+    field public static final int OOB_ERROR_ADAPTER_DISABLED = 2; // 0x2
+    field public static final int OOB_ERROR_ANOTHER_ACTIVE_REQUEST = 1; // 0x1
+    field public static final int OOB_ERROR_UNKNOWN = 0; // 0x0
   }
 
   public static interface BluetoothAdapter.OnMetadataChangedListener {
     method public void onMetadataChanged(@NonNull android.bluetooth.BluetoothDevice, int, @Nullable byte[]);
   }
 
+  public static interface BluetoothAdapter.OobDataCallback {
+    method public void onError(int);
+    method public void onOobData(int, @Nullable android.bluetooth.OobData);
+  }
+
   public final class BluetoothDevice implements android.os.Parcelable {
     method @RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED) public boolean cancelBondProcess();
     method @RequiresPermission(android.Manifest.permission.BLUETOOTH_PRIVILEGED) public boolean createBondOutOfBand(int, @Nullable android.bluetooth.OobData, @Nullable android.bluetooth.OobData);
@@ -6092,10 +6101,6 @@
 
 package android.net {
 
-  public class DnsResolverServiceManager {
-    method @NonNull @RequiresPermission(android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK) public static android.os.IBinder getService(@NonNull android.content.Context);
-  }
-
   public class EthernetManager {
     method @NonNull @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_STACK, android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK}) public android.net.EthernetManager.TetheredInterfaceRequest requestTetheredInterface(@NonNull java.util.concurrent.Executor, @NonNull android.net.EthernetManager.TetheredInterfaceCallback);
   }
@@ -6728,12 +6733,18 @@
     method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public boolean enableSecureNfc(boolean);
     method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public boolean isControllerAlwaysOn();
     method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public boolean isControllerAlwaysOnSupported();
+    method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public void registerControllerAlwaysOnListener(@NonNull java.util.concurrent.Executor, @NonNull android.nfc.NfcAdapter.ControllerAlwaysOnListener);
     method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public boolean removeNfcUnlockHandler(android.nfc.NfcAdapter.NfcUnlockHandler);
     method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public boolean setControllerAlwaysOn(boolean);
     method public void setNdefPushMessage(android.nfc.NdefMessage, android.app.Activity, int);
+    method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public void unregisterControllerAlwaysOnListener(@NonNull android.nfc.NfcAdapter.ControllerAlwaysOnListener);
     field public static final int FLAG_NDEF_PUSH_NO_CONFIRM = 1; // 0x1
   }
 
+  public static interface NfcAdapter.ControllerAlwaysOnListener {
+    method public void onControllerAlwaysOnChanged(boolean);
+  }
+
   public static interface NfcAdapter.NfcUnlockHandler {
     method public boolean onUnlockAttempted(android.nfc.Tag);
   }
@@ -6802,14 +6813,14 @@
     method @NonNull @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public android.os.connectivity.WifiBatteryStats getWifiBatteryStats();
     method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportFullWifiLockAcquiredFromSource(@NonNull android.os.WorkSource);
     method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportFullWifiLockReleasedFromSource(@NonNull android.os.WorkSource);
-    method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportMobileRadioPowerState(boolean, int) throws java.lang.RuntimeException;
+    method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportMobileRadioPowerState(boolean, int);
     method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportWifiBatchedScanStartedFromSource(@NonNull android.os.WorkSource, @IntRange(from=0) int);
     method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportWifiBatchedScanStoppedFromSource(@NonNull android.os.WorkSource);
     method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportWifiMulticastDisabled(@NonNull android.os.WorkSource);
     method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportWifiMulticastEnabled(@NonNull android.os.WorkSource);
     method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportWifiOff();
     method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportWifiOn();
-    method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportWifiRadioPowerState(boolean, int) throws java.lang.RuntimeException;
+    method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportWifiRadioPowerState(boolean, int);
     method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportWifiRssiChanged(@IntRange(from=0xffffff81, to=0) int);
     method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportWifiScanStartedFromSource(@NonNull android.os.WorkSource);
     method @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS) public void reportWifiScanStoppedFromSource(@NonNull android.os.WorkSource);
@@ -7177,10 +7188,15 @@
     method @RequiresPermission(android.Manifest.permission.RECOVERY) public static void processPackage(android.content.Context, java.io.File, android.os.RecoverySystem.ProgressListener, android.os.Handler) throws java.io.IOException;
     method @RequiresPermission(android.Manifest.permission.RECOVERY) public static void processPackage(android.content.Context, java.io.File, android.os.RecoverySystem.ProgressListener) throws java.io.IOException;
     method @Deprecated @RequiresPermission(android.Manifest.permission.RECOVERY) public static void rebootAndApply(@NonNull android.content.Context, @NonNull String, @NonNull String) throws java.io.IOException;
-    method @RequiresPermission(anyOf={android.Manifest.permission.RECOVERY, android.Manifest.permission.REBOOT}) public static void rebootAndApply(@NonNull android.content.Context, @NonNull String, boolean) throws java.io.IOException;
+    method @RequiresPermission(anyOf={android.Manifest.permission.RECOVERY, android.Manifest.permission.REBOOT}) public static int rebootAndApply(@NonNull android.content.Context, @NonNull String, boolean) throws java.io.IOException;
     method @RequiresPermission(allOf={android.Manifest.permission.RECOVERY, android.Manifest.permission.REBOOT}) public static void rebootWipeAb(android.content.Context, java.io.File, String) throws java.io.IOException;
     method @RequiresPermission(android.Manifest.permission.RECOVERY) public static void scheduleUpdateOnBoot(android.content.Context, java.io.File) throws java.io.IOException;
     method public static boolean verifyPackageCompatibility(java.io.File) throws java.io.IOException;
+    field public static final int RESUME_ON_REBOOT_REBOOT_ERROR_INVALID_PACKAGE_NAME = 2000; // 0x7d0
+    field public static final int RESUME_ON_REBOOT_REBOOT_ERROR_LSKF_NOT_CAPTURED = 3000; // 0xbb8
+    field public static final int RESUME_ON_REBOOT_REBOOT_ERROR_PROVIDER_PREPARATION_FAILURE = 5000; // 0x1388
+    field public static final int RESUME_ON_REBOOT_REBOOT_ERROR_SLOT_MISMATCH = 4000; // 0xfa0
+    field public static final int RESUME_ON_REBOOT_REBOOT_ERROR_UNSPECIFIED = 1000; // 0x3e8
   }
 
   public final class RemoteCallback implements android.os.Parcelable {
@@ -7296,7 +7312,7 @@
     method @NonNull public static String formatUid(int);
     method public static int getAppId(int);
     method public int getIdentifier();
-    method public static int getUid(@NonNull android.os.UserHandle, int);
+    method public int getUid(int);
     method @Deprecated public boolean isOwner();
     method public boolean isSystem();
     method public static int myUserId();
@@ -8117,7 +8133,7 @@
   }
 
   public final class KeyGenParameterSpec implements java.security.spec.AlgorithmParameterSpec {
-    method @Nullable public int[] getAttestationIds();
+    method @NonNull public int[] getAttestationIds();
     method public int getNamespace();
   }
 
@@ -9445,10 +9461,6 @@
     field public static final String KEY_SUPPORT_CDMA_1X_VOICE_CALLS_BOOL = "support_cdma_1x_voice_calls_bool";
   }
 
-  public static final class CarrierConfigManager.Ims {
-    field public static final String KEY_PUBLISH_SERVICE_DESC_FEATURE_TAG_MAP_OVERRIDE_STRING_ARRAY = "ims.publish_service_desc_feature_tag_map_override_string_array";
-  }
-
   public static final class CarrierConfigManager.Wifi {
     field public static final String KEY_HOTSPOT_MAX_CLIENT_COUNT = "wifi.hotspot_maximum_client_count";
     field public static final String KEY_PREFIX = "wifi.";
@@ -11884,7 +11896,8 @@
   }
 
   public interface SipDelegateConnection {
-    method public void closeDialog(@NonNull String);
+    method public default void cleanupSession(@NonNull String);
+    method @Deprecated public default void closeDialog(@NonNull String);
     method public void notifyMessageReceiveError(@NonNull String, int);
     method public void notifyMessageReceived(@NonNull String);
     method public void sendMessage(@NonNull android.telephony.ims.SipMessage, long);
@@ -11985,10 +11998,10 @@
     method public int describeContents();
     method @Nullable public String getCallIdParameter();
     method @NonNull public byte[] getContent();
-    method @NonNull public byte[] getEncodedMessage();
     method @NonNull public String getHeaderSection();
     method @NonNull public String getStartLine();
-    method @Nullable public String getViaBranchParameter();
+    method @NonNull public String getViaBranchParameter();
+    method @NonNull public byte[] toEncodedMessage();
     method public void writeToParcel(@NonNull android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.telephony.ims.SipMessage> CREATOR;
   }
@@ -12333,7 +12346,8 @@
   }
 
   public interface SipDelegate {
-    method public void closeDialog(@NonNull String);
+    method public default void cleanupSession(@NonNull String);
+    method @Deprecated public default void closeDialog(@NonNull String);
     method public void notifyMessageReceiveError(@NonNull String, int);
     method public void notifyMessageReceived(@NonNull String);
     method public void sendMessage(@NonNull android.telephony.ims.SipMessage, long);
@@ -12492,7 +12506,7 @@
   public final class DistanceMeasurement implements android.os.Parcelable {
     method public int describeContents();
     method @FloatRange(from=0.0, to=1.0) public double getConfidenceLevel();
-    method public double getErrorMeters();
+    method @FloatRange(from=0.0) public double getErrorMeters();
     method public double getMeters();
     method public void writeToParcel(@NonNull android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.uwb.DistanceMeasurement> CREATOR;
@@ -12501,8 +12515,8 @@
   public static final class DistanceMeasurement.Builder {
     ctor public DistanceMeasurement.Builder();
     method @NonNull public android.uwb.DistanceMeasurement build();
-    method @NonNull public android.uwb.DistanceMeasurement.Builder setConfidenceLevel(double);
-    method @NonNull public android.uwb.DistanceMeasurement.Builder setErrorMeters(double);
+    method @NonNull public android.uwb.DistanceMeasurement.Builder setConfidenceLevel(@FloatRange(from=0.0, to=1.0) double);
+    method @NonNull public android.uwb.DistanceMeasurement.Builder setErrorMeters(@FloatRange(from=0.0) double);
     method @NonNull public android.uwb.DistanceMeasurement.Builder setMeters(double);
   }
 
@@ -12561,7 +12575,7 @@
     method public void onStartFailed(int, @NonNull android.os.PersistableBundle);
     method public void onStarted(@NonNull android.os.PersistableBundle);
     method public void onStopFailed(int, @NonNull android.os.PersistableBundle);
-    method public void onStopped();
+    method public void onStopped(int, @NonNull android.os.PersistableBundle);
     field public static final int REASON_BAD_PARAMETERS = 3; // 0x3
     field public static final int REASON_GENERIC_ERROR = 4; // 0x4
     field public static final int REASON_LOCAL_REQUEST = 1; // 0x1
diff --git a/core/api/test-current.txt b/core/api/test-current.txt
index 0c57f4e..fd6d47e 100644
--- a/core/api/test-current.txt
+++ b/core/api/test-current.txt
@@ -1009,6 +1009,10 @@
     method public static void setServiceForTest(@Nullable android.os.IBinder);
   }
 
+  public class NetworkWatchlistManager {
+    method @Nullable public byte[] getWatchlistConfigHash();
+  }
+
   public class TrafficStats {
     method public static long getLoopbackRxBytes();
     method public static long getLoopbackRxPackets();
@@ -1022,6 +1026,7 @@
 
   public class Build {
     method public static boolean is64BitAbi(String);
+    method public static boolean isDebuggable();
     field public static final boolean IS_EMULATOR;
   }
 
diff --git a/core/java/Android.bp b/core/java/Android.bp
index 919f1e2..965665d 100644
--- a/core/java/Android.bp
+++ b/core/java/Android.bp
@@ -127,3 +127,269 @@
     ],
     visibility: ["//frameworks/base/test-mock"],
 }
+
+filegroup {
+    name: "libincident_aidl",
+    srcs: [
+        "android/os/IIncidentDumpCallback.aidl",
+        "android/os/IIncidentManager.aidl",
+        "android/os/IIncidentReportStatusListener.aidl",
+    ],
+}
+
+filegroup {
+    name: "libvibrator_aidl",
+    srcs: [
+        "android/os/IExternalVibrationController.aidl",
+        "android/os/IExternalVibratorService.aidl",
+    ],
+}
+
+filegroup {
+    name: "libpowermanager_aidl",
+    srcs: [
+        "android/os/Temperature.aidl",
+        "android/os/CoolingDevice.aidl",
+        "android/os/IThermalEventListener.aidl",
+        "android/os/IThermalStatusListener.aidl",
+        "android/os/IThermalService.aidl",
+    ],
+}
+
+genrule {
+    name: "statslog-framework-java-gen",
+    tools: ["stats-log-api-gen"],
+    cmd: "$(location stats-log-api-gen) --java $(out) --module framework" +
+        " --javaPackage com.android.internal.util --javaClass FrameworkStatsLog --worksource",
+    out: ["com/android/internal/util/FrameworkStatsLog.java"],
+}
+
+java_library {
+    name: "uieventloggerlib",
+    srcs: [
+        "com/android/internal/logging/UiEvent.java",
+        "com/android/internal/logging/UiEventLogger.java",
+        "com/android/internal/logging/UiEventLoggerImpl.java",
+        "com/android/internal/logging/InstanceId.java",
+        "com/android/internal/logging/InstanceIdSequence.java",
+        ":statslog-framework-java-gen",
+    ],
+}
+
+filegroup {
+    name: "framework-services-net-module-wifi-shared-srcs",
+    srcs: [
+        "android/net/DhcpResults.java",
+        "android/util/LocalLog.java",
+    ],
+}
+
+// keep these files in sync with the package/Tethering/jarjar-rules.txt and
+// package/Connectivity/jarjar-rules.txt for the tethering module and connectivity module.
+filegroup {
+    name: "framework-connectivity-shared-srcs",
+    srcs: [
+        "android/util/LocalLog.java",
+        // This should be android.util.IndentingPrintWriter, but it's not available in all branches.
+        "com/android/internal/util/IndentingPrintWriter.java",
+        "com/android/internal/util/IState.java",
+        "com/android/internal/util/MessageUtils.java",
+        "com/android/internal/util/State.java",
+        "com/android/internal/util/StateMachine.java",
+        "com/android/internal/util/WakeupMessage.java",
+    ],
+}
+
+filegroup {
+    name: "incremental_aidl",
+    srcs: [
+        "android/os/incremental/IIncrementalServiceConnector.aidl",
+        "android/os/incremental/IncrementalFileSystemControlParcel.aidl",
+    ],
+}
+
+filegroup {
+    name: "dataloader_aidl",
+    srcs: [
+        "android/content/pm/DataLoaderParamsParcel.aidl",
+        "android/content/pm/DataLoaderType.aidl",
+        "android/content/pm/FileSystemControlParcel.aidl",
+        "android/content/pm/IDataLoader.aidl",
+        "android/content/pm/IDataLoaderManager.aidl",
+        "android/content/pm/InstallationFileParcel.aidl",
+        "android/content/pm/InstallationFileLocation.aidl",
+        "android/content/pm/IDataLoaderStatusListener.aidl",
+        "android/content/pm/IPackageInstallerSessionFileSystemConnector.aidl",
+    ],
+}
+
+filegroup {
+    name: "incremental_manager_aidl",
+    srcs: [
+        "android/os/incremental/IIncrementalService.aidl",
+        "android/os/incremental/IncrementalNewFileParams.aidl",
+        "android/os/incremental/IStorageHealthListener.aidl",
+        "android/os/incremental/StorageHealthCheckParams.aidl",
+    ],
+}
+
+filegroup {
+    name: "activity_manager_procstate_aidl",
+    srcs: [
+        // internal only
+    ],
+}
+
+aidl_interface {
+    name: "libincremental_aidl",
+    unstable: true,
+    srcs: [
+        ":incremental_aidl",
+    ],
+    backend: {
+        java: {
+            sdk_version: "28",
+        },
+        cpp: {
+            enabled: true,
+        },
+        ndk: {
+            enabled: true,
+        },
+    },
+}
+
+aidl_interface {
+    name: "libdataloader_aidl",
+    unstable: true,
+    srcs: [
+        ":dataloader_aidl",
+    ],
+    imports: [
+        "libincremental_aidl",
+    ],
+    backend: {
+        java: {
+            sdk_version: "28",
+        },
+        cpp: {
+            enabled: true,
+        },
+        ndk: {
+            enabled: false,
+        },
+    },
+}
+
+aidl_interface {
+    name: "libincremental_manager_aidl",
+    unstable: true,
+    srcs: [
+        ":incremental_manager_aidl",
+    ],
+    imports: [
+        "libincremental_aidl",
+        "libdataloader_aidl",
+    ],
+    backend: {
+        java: {
+            sdk_version: "28",
+        },
+        cpp: {
+            enabled: true,
+        },
+        ndk: {
+            enabled: false,
+        },
+    },
+}
+
+// Build Rust bindings for PermissionController. Needed by keystore2.
+aidl_interface {
+    name: "android.os.permissions_aidl",
+    unstable: true,
+    local_include_dir: ".",
+    srcs: [
+        "android/os/IPermissionController.aidl",
+    ],
+    backend: {
+        rust: {
+            enabled: true,
+        },
+    },
+}
+
+// Avoid including Parcelable classes as we don't want to have two copies of
+// Parcelable cross the libraries. This is used by telephony-common (frameworks/opt/telephony)
+// and TeleService app (packages/services/Telephony).
+filegroup {
+    name: "framework-telephony-common-shared-srcs",
+    srcs: [
+        "android/os/RegistrantList.java",
+        "android/os/Registrant.java",
+        "android/util/LocalLog.java",
+        "android/util/TimeUtils.java",
+        "com/android/internal/os/SomeArgs.java",
+        "com/android/internal/util/AsyncChannel.java",
+        "com/android/internal/util/AsyncService.java",
+        "com/android/internal/util/BitwiseInputStream.java",
+        "com/android/internal/util/FastXmlSerializer.java",
+        "com/android/internal/util/HexDump.java",
+        "com/android/internal/util/IState.java",
+        "com/android/internal/util/IndentingPrintWriter.java",
+        "com/android/internal/util/Preconditions.java",
+        "com/android/internal/util/State.java",
+        "com/android/internal/util/StateMachine.java",
+        "com/android/internal/util/UserIcons.java",
+    ],
+}
+
+// Avoid including Parcelable classes as we don't want to have two copies of
+// Parcelable cross the process.
+filegroup {
+    name: "framework-cellbroadcast-shared-srcs",
+    srcs: [
+        "android/os/HandlerExecutor.java",
+        "android/util/LocalLog.java",
+        "com/android/internal/util/IState.java",
+        "com/android/internal/util/Preconditions.java",
+        "com/android/internal/util/State.java",
+        "com/android/internal/util/StateMachine.java",
+    ],
+}
+
+filegroup {
+    name: "framework-ims-common-shared-srcs",
+    srcs: [
+        "android/os/RegistrantList.java",
+        "android/os/Registrant.java",
+        "com/android/internal/os/SomeArgs.java",
+        "com/android/internal/util/Preconditions.java",
+    ],
+}
+
+filegroup {
+    name: "framework-wifi-util-lib-aidls",
+    srcs: ["android/content/pm/ParceledListSlice.aidl"],
+}
+
+// utility classes statically linked into wifi-service
+filegroup {
+    name: "framework-wifi-service-shared-srcs",
+    srcs: [
+        "android/net/InterfaceConfiguration.java",
+        "android/util/BackupUtils.java",
+        "android/util/Rational.java",
+        "com/android/internal/util/FastXmlSerializer.java",
+        "com/android/internal/util/HexDump.java",
+        "com/android/internal/util/IState.java",
+        "com/android/internal/util/MessageUtils.java",
+        "com/android/internal/util/State.java",
+        "com/android/internal/util/StateMachine.java",
+        "com/android/internal/util/WakeupMessage.java",
+    ],
+    visibility: [
+        "//frameworks/opt/net/wifi/service",
+        "//packages/modules/Wifi/service",
+    ],
+}
diff --git a/core/java/android/app/AppOpsManager.java b/core/java/android/app/AppOpsManager.java
index 694c519..c4cdbbc 100644
--- a/core/java/android/app/AppOpsManager.java
+++ b/core/java/android/app/AppOpsManager.java
@@ -7636,8 +7636,8 @@
                 } else if (collectionMode == COLLECT_SYNC
                         // Only collect app-ops when the proxy is trusted
                         && (mContext.checkPermission(Manifest.permission.UPDATE_APP_OPS_STATS, -1,
-                        myUid) == PackageManager.PERMISSION_GRANTED
-                        || isTrustedVoiceServiceProxy(mContext, mContext.getOpPackageName(), op))) {
+                        myUid) == PackageManager.PERMISSION_GRANTED || isTrustedVoiceServiceProxy(
+                        mContext, mContext.getOpPackageName(), op, mContext.getUserId()))) {
                     collectNotedOpSync(op, proxiedAttributionTag);
                 }
             }
@@ -7655,7 +7655,7 @@
      * @hide
      */
     public static boolean isTrustedVoiceServiceProxy(Context context, String packageName,
-            int code) {
+            int code, int userId) {
         // This is a workaround for R QPR, new API change is not allowed. We only allow the current
         // voice recognizer is also the voice interactor to noteproxy op.
         if (code != OP_RECORD_AUDIO) {
@@ -7667,7 +7667,7 @@
         final String voiceRecognitionServicePackageName =
                 getComponentPackageNameFromString(voiceRecognitionComponent);
         return (Objects.equals(packageName, voiceRecognitionServicePackageName))
-                && isPackagePreInstalled(context, packageName);
+                && isPackagePreInstalled(context, packageName, userId);
     }
 
     private static String getComponentPackageNameFromString(String from) {
@@ -7675,10 +7675,10 @@
         return componentName != null ? componentName.getPackageName() : "";
     }
 
-    private static boolean isPackagePreInstalled(Context context, String packageName) {
+    private static boolean isPackagePreInstalled(Context context, String packageName, int userId) {
         try {
             final PackageManager pm = context.getPackageManager();
-            final ApplicationInfo info = pm.getApplicationInfo(packageName, 0);
+            final ApplicationInfo info = pm.getApplicationInfoAsUser(packageName, 0, userId);
             return ((info.flags & ApplicationInfo.FLAG_SYSTEM) != 0);
         } catch (PackageManager.NameNotFoundException e) {
             return false;
diff --git a/core/java/android/app/ApplicationExitInfo.java b/core/java/android/app/ApplicationExitInfo.java
index 854f5a4..87f48c0 100644
--- a/core/java/android/app/ApplicationExitInfo.java
+++ b/core/java/android/app/ApplicationExitInfo.java
@@ -614,7 +614,7 @@
      * tombstone traces will be returned for
      * {@link #REASON_CRASH_NATIVE}, with an InputStream containing a protobuf with
      * <a href="https://android.googlesource.com/platform/system/core/+/refs/heads/master/debuggerd/proto/tombstone.proto">this schema</a>.
-     * Note thatbecause these traces are kept in a separate global circular buffer, crashes may be
+     * Note that because these traces are kept in a separate global circular buffer, crashes may be
      * overwritten by newer crashes (including from other applications), so this may still return
      * null.
      *
diff --git a/core/java/android/app/IUidObserver.aidl b/core/java/android/app/IUidObserver.aidl
index 7713e25..74018a8 100644
--- a/core/java/android/app/IUidObserver.aidl
+++ b/core/java/android/app/IUidObserver.aidl
@@ -24,7 +24,7 @@
     // below block of transactions.
 
     // Since these transactions are also called from native code, these must be kept in sync with
-    // the ones in frameworks/native/include/binder/IActivityManager.h
+    // the ones in frameworks/native/include_activitymanager/binder/IActivityManager.h
     // =============== Beginning of transactions used on native side as well ======================
 
     /**
diff --git a/core/java/android/bluetooth/BluetoothAdapter.java b/core/java/android/bluetooth/BluetoothAdapter.java
index 38863c2..3802289 100644
--- a/core/java/android/bluetooth/BluetoothAdapter.java
+++ b/core/java/android/bluetooth/BluetoothAdapter.java
@@ -28,6 +28,7 @@
 import android.annotation.SystemApi;
 import android.app.ActivityThread;
 import android.app.PropertyInvalidatedCache;
+import android.bluetooth.BluetoothDevice.Transport;
 import android.bluetooth.BluetoothProfile.ConnectionPolicy;
 import android.bluetooth.le.BluetoothLeAdvertiser;
 import android.bluetooth.le.BluetoothLeScanner;
@@ -3013,6 +3014,164 @@
         return false;
     }
 
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(prefix = { "OOB_ERROR_" }, value = {
+        OOB_ERROR_UNKNOWN,
+        OOB_ERROR_ANOTHER_ACTIVE_REQUEST,
+        OOB_ERROR_ADAPTER_DISABLED
+    })
+    public @interface OobError {}
+
+    /**
+     * An unknown error has occurred in the controller, stack, or callback pipeline.
+     *
+     * @hide
+     */
+    @SystemApi
+    public static final int OOB_ERROR_UNKNOWN = 0;
+
+    /**
+     * If another application has already requested {@link OobData} then another fetch will be
+     * disallowed until the callback is removed.
+     *
+     * @hide
+     */
+    @SystemApi
+    public static final int OOB_ERROR_ANOTHER_ACTIVE_REQUEST = 1;
+
+    /**
+     * The adapter is currently disabled, please enable it.
+     *
+     * @hide
+     */
+    @SystemApi
+    public static final int OOB_ERROR_ADAPTER_DISABLED = 2;
+
+    /**
+     * Provides callback methods for receiving {@link OobData} from the host stack, as well as an
+     * error interface in order to allow the caller to determine next steps based on the {@link
+     * ErrorCode}.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface OobDataCallback {
+        /**
+         * Handles the {@link OobData} received from the host stack.
+         *
+         * @param transport - whether the {@link OobData} is generated for LE or Classic.
+         * @param oobData - data generated in the host stack(LE) or controller (Classic)
+         */
+        void onOobData(@Transport int transport, @Nullable OobData oobData);
+
+        /**
+         * Provides feedback when things don't go as expected.
+         *
+         * @param errorCode - the code descibing the type of error that occurred.
+         */
+        void onError(@OobError int errorCode);
+    }
+
+    /**
+     * Wraps an AIDL interface around an {@link OobDataCallback} interface.
+     *
+     * @see {@link IBluetoothOobDataCallback} for interface definition.
+     *
+     * @hide
+     */
+    public class WrappedOobDataCallback extends IBluetoothOobDataCallback.Stub {
+        private final OobDataCallback mCallback;
+        private final Executor mExecutor;
+
+        /**
+         * @param callback - object to receive {@link OobData} must be a non null argument
+         *
+         * @throws NullPointerException if the callback is null.
+         */
+        WrappedOobDataCallback(@NonNull OobDataCallback callback,
+                @NonNull @CallbackExecutor Executor executor) {
+            Preconditions.checkNotNull(callback);
+            Preconditions.checkNotNull(executor);
+            mCallback = callback;
+            mExecutor = executor;
+        }
+        /**
+         * Wrapper function to relay to the {@link OobDataCallback#onOobData}
+         *
+         * @param transport - whether the {@link OobData} is generated for LE or Classic.
+         * @param oobData - data generated in the host stack(LE) or controller (Classic)
+         *
+         * @hide
+         */
+        public void onOobData(@Transport int transport, OobData oobData) {
+            mExecutor.execute(new Runnable() {
+                public void run() {
+                    mCallback.onOobData(transport, oobData);
+                }
+            });
+        }
+        /**
+         * Wrapper function to relay to the {@link OobDataCallback#onError}
+         *
+         * @param errorCode - the code descibing the type of error that occurred.
+         *
+         * @hide
+         */
+        public void onError(@OobError int errorCode) {
+            mExecutor.execute(new Runnable() {
+                public void run() {
+                    mCallback.onError(errorCode);
+                }
+            });
+        }
+    }
+
+    /**
+     * Fetches a secret data value that can be used for a secure and simple pairing experience.
+     *
+     * <p>This is the Local Out of Band data the comes from the
+     *
+     * <p>This secret is the local Out of Band data.  This data is used to securely and quickly
+     * pair two devices with minimal user interaction.
+     *
+     * <p>For example, this secret can be transferred to a remote device out of band (meaning any
+     * other way besides using bluetooth).  Once the remote device finds this device using the
+     * information given in the data, such as the PUBLIC ADDRESS, the remote device could then
+     * connect to this device using this secret when the pairing sequenece asks for the secret.
+     * This device will respond by automatically accepting the pairing due to the secret being so
+     * trustworthy.
+     *
+     * @param transport - provide type of transport (e.g. LE or Classic).
+     * @param callback - target object to receive the {@link OobData} value.
+     *
+     * @throws NullPointerException if callback is null.
+     * @throws IllegalArgumentException if the transport is not valid.
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(Manifest.permission.BLUETOOTH_PRIVILEGED)
+    public void generateLocalOobData(@Transport int transport,
+            @NonNull @CallbackExecutor Executor executor, @NonNull OobDataCallback callback) {
+        if (transport != BluetoothDevice.TRANSPORT_BREDR && transport
+                != BluetoothDevice.TRANSPORT_LE) {
+            throw new IllegalArgumentException("Invalid transport '" + transport + "'!");
+        }
+        Preconditions.checkNotNull(callback);
+        if (!isEnabled()) {
+            Log.w(TAG, "generateLocalOobData(): Adapter isn't enabled!");
+            callback.onError(OOB_ERROR_ADAPTER_DISABLED);
+        } else {
+            try {
+                mService.generateLocalOobData(transport, new WrappedOobDataCallback(callback,
+                        executor));
+            } catch (RemoteException e) {
+                Log.e(TAG, "", e);
+            }
+        }
+    }
+
     /**
      * Enable control of the Bluetooth Adapter for a single application.
      *
diff --git a/core/java/android/bluetooth/BluetoothDevice.java b/core/java/android/bluetooth/BluetoothDevice.java
index c30b8af..a40bf34 100644
--- a/core/java/android/bluetooth/BluetoothDevice.java
+++ b/core/java/android/bluetooth/BluetoothDevice.java
@@ -931,6 +931,21 @@
     @SystemApi
     public static final int ACCESS_REJECTED = 2;
 
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(
+        prefix = { "TRANSPORT_" },
+        value = {
+            /** Allow host to automatically select a transport (dual-mode only) */
+            TRANSPORT_AUTO,
+            /** Use Classic or BR/EDR transport.*/
+            TRANSPORT_BREDR,
+            /** Use Low Energy transport.*/
+            TRANSPORT_LE,
+        }
+    )
+    public @interface Transport {}
+
     /**
      * No preference of physical transport for GATT connections to remote dual-mode devices
      */
@@ -1063,6 +1078,10 @@
         public void onBrEdrDown() {
             if (DBG) Log.d(TAG, "onBrEdrDown: reached BLE ON state");
         }
+
+        public void onOobData(@Transport int transport, OobData oobData) {
+            if (DBG) Log.d(TAG, "onOobData: got data");
+        }
     };
 
     /**
diff --git a/core/java/android/bluetooth/OobData.java b/core/java/android/bluetooth/OobData.java
index 08d694e..d6868e0 100644
--- a/core/java/android/bluetooth/OobData.java
+++ b/core/java/android/bluetooth/OobData.java
@@ -830,7 +830,7 @@
     @Nullable
     @SystemApi
     public byte[] getLeAppearance() {
-        return mLeTemporaryKey;
+        return mLeAppearance;
     }
 
     /**
diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index fe9ed27..4293ab0 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -4026,6 +4026,7 @@
      * @see android.net.PacProxyManager
      * @hide
      */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public static final String PAC_PROXY_SERVICE = "pac_proxy";
 
     /**
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index 4d68e90..0fad63f 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -2324,14 +2324,6 @@
     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
     public static final String ACTION_TIMEZONE_CHANGED = "android.intent.action.TIMEZONE_CHANGED";
     /**
-     * Clear DNS Cache Action: This is broadcast when networks have changed and old
-     * DNS entries should be tossed.
-     * @hide
-     */
-    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
-    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
-    public static final String ACTION_CLEAR_DNS_CACHE = "android.intent.action.CLEAR_DNS_CACHE";
-    /**
      * Alarm Changed Action: This is broadcast when the AlarmClock
      * application's alarm is set or unset.  It is used by the
      * AlarmClock application and the StatusBar service.
diff --git a/core/java/android/content/OWNERS b/core/java/android/content/OWNERS
index 01b554a..1735aa2 100644
--- a/core/java/android/content/OWNERS
+++ b/core/java/android/content/OWNERS
@@ -5,6 +5,7 @@
 per-file IntentFilter.java = patb@google.com
 per-file Intent.java = toddke@google.com
 per-file Intent.java = patb@google.com
+per-file Intent.java = file:/services/core/java/com/android/server/wm/OWNERS
 per-file AutofillOptions* = file:/core/java/android/service/autofill/OWNERS
 per-file ContentCaptureOptions* = file:/core/java/android/service/contentcapture/OWNERS
 per-file LocusId* = file:/core/java/android/service/contentcapture/OWNERS
diff --git a/core/java/android/content/pm/ApplicationInfo.java b/core/java/android/content/pm/ApplicationInfo.java
index ad9e31b..fc5ca61 100644
--- a/core/java/android/content/pm/ApplicationInfo.java
+++ b/core/java/android/content/pm/ApplicationInfo.java
@@ -1337,7 +1337,7 @@
      * Indicates if the application has requested GWP-ASan to be enabled, disabled, or left
      * unspecified. Processes can override this setting.
      */
-    private @GwpAsanMode int gwpAsanMode;
+    private @GwpAsanMode int gwpAsanMode = GWP_ASAN_DEFAULT;
 
     /**
      * Default (unspecified) setting of Memtag.
@@ -1376,13 +1376,38 @@
      * Indicates if the application has requested Memtag to be enabled, disabled, or left
      * unspecified. Processes can override this setting.
      */
-    private @MemtagMode int memtagMode;
+    private @MemtagMode int memtagMode = MEMTAG_DEFAULT;
+
+    /**
+     * Default (unspecified) setting of nativeHeapZeroInitialized.
+     */
+    public static final int ZEROINIT_DEFAULT = -1;
+
+    /**
+     * Disable zero-initialization of the native heap in this application or process.
+     */
+    public static final int ZEROINIT_DISABLED = 0;
+
+    /**
+     * Enable zero-initialization of the native heap in this application or process.
+     */
+    public static final int ZEROINIT_ENABLED = 1;
+
+    /**
+     * @hide
+     */
+    @IntDef(prefix = {"ZEROINIT_"}, value = {
+            ZEROINIT_DEFAULT,
+            ZEROINIT_DISABLED,
+            ZEROINIT_ENABLED,
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface NativeHeapZeroInitialized {}
 
     /**
      * Enable automatic zero-initialization of native heap memory allocations.
      */
-    @Nullable
-    private Boolean nativeHeapZeroInit;
+    private @NativeHeapZeroInitialized int nativeHeapZeroInitialized = ZEROINIT_DEFAULT;
 
     /**
      * Represents the default policy. The actual policy used will depend on other properties of
@@ -1531,8 +1556,8 @@
             if (memtagMode != MEMTAG_DEFAULT) {
                 pw.println(prefix + "memtagMode=" + memtagMode);
             }
-            if (nativeHeapZeroInit != null) {
-                pw.println(prefix + "nativeHeapZeroInit=" + nativeHeapZeroInit);
+            if (nativeHeapZeroInitialized != ZEROINIT_DEFAULT) {
+                pw.println(prefix + "nativeHeapZeroInitialized=" + nativeHeapZeroInitialized);
             }
         }
         super.dumpBack(pw, prefix);
@@ -1638,8 +1663,9 @@
             if (memtagMode != MEMTAG_DEFAULT) {
                 proto.write(ApplicationInfoProto.Detail.ENABLE_MEMTAG, memtagMode);
             }
-            if (nativeHeapZeroInit != null) {
-                proto.write(ApplicationInfoProto.Detail.NATIVE_HEAP_ZERO_INIT, nativeHeapZeroInit);
+            if (nativeHeapZeroInitialized != ZEROINIT_DEFAULT) {
+                proto.write(ApplicationInfoProto.Detail.NATIVE_HEAP_ZERO_INIT,
+                        nativeHeapZeroInitialized);
             }
             proto.end(detailToken);
         }
@@ -1752,7 +1778,7 @@
         zygotePreloadName = orig.zygotePreloadName;
         gwpAsanMode = orig.gwpAsanMode;
         memtagMode = orig.memtagMode;
-        nativeHeapZeroInit = orig.nativeHeapZeroInit;
+        nativeHeapZeroInitialized = orig.nativeHeapZeroInitialized;
     }
 
     public String toString() {
@@ -1838,7 +1864,7 @@
         dest.writeString8(zygotePreloadName);
         dest.writeInt(gwpAsanMode);
         dest.writeInt(memtagMode);
-        sForBoolean.parcel(nativeHeapZeroInit, dest, parcelableFlags);
+        dest.writeInt(nativeHeapZeroInitialized);
     }
 
     public static final @android.annotation.NonNull Parcelable.Creator<ApplicationInfo> CREATOR
@@ -1921,7 +1947,7 @@
         zygotePreloadName = source.readString8();
         gwpAsanMode = source.readInt();
         memtagMode = source.readInt();
-        nativeHeapZeroInit = sForBoolean.unparcel(source);
+        nativeHeapZeroInitialized = source.readInt();
     }
 
     /**
@@ -2314,7 +2340,9 @@
     /** {@hide} */ public void setSplitResourcePaths(String[] splitResourcePaths) { splitPublicSourceDirs = splitResourcePaths; }
     /** {@hide} */ public void setGwpAsanMode(@GwpAsanMode int value) { gwpAsanMode = value; }
     /** {@hide} */ public void setMemtagMode(@MemtagMode int value) { memtagMode = value; }
-    /** {@hide} */ public void setNativeHeapZeroInit(@Nullable Boolean value) { nativeHeapZeroInit = value; }
+    /** {@hide} */ public void setNativeHeapZeroInitialized(@NativeHeapZeroInitialized int value) {
+        nativeHeapZeroInitialized = value;
+    }
 
     /** {@hide} */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
@@ -2328,8 +2356,22 @@
     /** {@hide} */ public String[] getSplitResourcePaths() { return splitPublicSourceDirs; }
     @GwpAsanMode
     public int getGwpAsanMode() { return gwpAsanMode; }
+
+    /**
+     * Returns whether the application has requested Memtag to be enabled, disabled, or left
+     * unspecified. Processes can override this setting.
+     */
     @MemtagMode
-    public int getMemtagMode() { return memtagMode; }
-    @Nullable
-    public Boolean isNativeHeapZeroInit() { return nativeHeapZeroInit; }
+    public int getMemtagMode() {
+        return memtagMode;
+    }
+
+    /**
+     * Returns whether the application has requested automatic zero-initialization of native heap
+     * memory allocations to be enabled or disabled.
+     */
+    @NativeHeapZeroInitialized
+    public int getNativeHeapZeroInitialized() {
+        return nativeHeapZeroInitialized;
+    }
 }
diff --git a/core/java/android/content/pm/ProcessInfo.java b/core/java/android/content/pm/ProcessInfo.java
index 3dd5ee1..632c0f5 100644
--- a/core/java/android/content/pm/ProcessInfo.java
+++ b/core/java/android/content/pm/ProcessInfo.java
@@ -62,8 +62,7 @@
     /**
      * Enable automatic zero-initialization of native heap memory allocations.
      */
-    @Nullable
-    public Boolean nativeHeapZeroInit;
+    public @ApplicationInfo.NativeHeapZeroInitialized int nativeHeapZeroInitialized;
 
     @Deprecated
     public ProcessInfo(@NonNull ProcessInfo orig) {
@@ -71,7 +70,7 @@
         this.deniedPermissions = orig.deniedPermissions;
         this.gwpAsanMode = orig.gwpAsanMode;
         this.memtagMode = orig.memtagMode;
-        this.nativeHeapZeroInit = orig.nativeHeapZeroInit;
+        this.nativeHeapZeroInitialized = orig.nativeHeapZeroInitialized;
     }
 
 
@@ -101,7 +100,7 @@
      * @param memtagMode
      *   Indicates if the process has requested Memtag to be enabled (in sync or async mode),
      *   disabled, or left unspecified.
-     * @param nativeHeapZeroInit
+     * @param nativeHeapZeroInitialized
      *   Enable automatic zero-initialization of native heap memory allocations.
      */
     @DataClass.Generated.Member
@@ -110,7 +109,7 @@
             @Nullable ArraySet<String> deniedPermissions,
             @ApplicationInfo.GwpAsanMode int gwpAsanMode,
             @ApplicationInfo.MemtagMode int memtagMode,
-            @Nullable Boolean nativeHeapZeroInit) {
+            @ApplicationInfo.NativeHeapZeroInitialized int nativeHeapZeroInitialized) {
         this.name = name;
         com.android.internal.util.AnnotationValidations.validate(
                 NonNull.class, null, name);
@@ -121,7 +120,9 @@
         this.memtagMode = memtagMode;
         com.android.internal.util.AnnotationValidations.validate(
                 ApplicationInfo.MemtagMode.class, null, memtagMode);
-        this.nativeHeapZeroInit = nativeHeapZeroInit;
+        this.nativeHeapZeroInitialized = nativeHeapZeroInitialized;
+        com.android.internal.util.AnnotationValidations.validate(
+                ApplicationInfo.NativeHeapZeroInitialized.class, null, nativeHeapZeroInitialized);
 
         // onConstructed(); // You can define this method to get a callback
     }
@@ -145,13 +146,12 @@
 
         byte flg = 0;
         if (deniedPermissions != null) flg |= 0x2;
-        if (nativeHeapZeroInit != null) flg |= 0x10;
         dest.writeByte(flg);
         dest.writeString(name);
         sParcellingForDeniedPermissions.parcel(deniedPermissions, dest, flags);
         dest.writeInt(gwpAsanMode);
         dest.writeInt(memtagMode);
-        if (nativeHeapZeroInit != null) dest.writeBoolean(nativeHeapZeroInit);
+        dest.writeInt(nativeHeapZeroInitialized);
     }
 
     @Override
@@ -170,7 +170,7 @@
         ArraySet<String> _deniedPermissions = sParcellingForDeniedPermissions.unparcel(in);
         int _gwpAsanMode = in.readInt();
         int _memtagMode = in.readInt();
-        Boolean _nativeHeapZeroInit = (flg & 0x10) == 0 ? null : (Boolean) in.readBoolean();
+        int _nativeHeapZeroInitialized = in.readInt();
 
         this.name = _name;
         com.android.internal.util.AnnotationValidations.validate(
@@ -182,7 +182,9 @@
         this.memtagMode = _memtagMode;
         com.android.internal.util.AnnotationValidations.validate(
                 ApplicationInfo.MemtagMode.class, null, memtagMode);
-        this.nativeHeapZeroInit = _nativeHeapZeroInit;
+        this.nativeHeapZeroInitialized = _nativeHeapZeroInitialized;
+        com.android.internal.util.AnnotationValidations.validate(
+                ApplicationInfo.NativeHeapZeroInitialized.class, null, nativeHeapZeroInitialized);
 
         // onConstructed(); // You can define this method to get a callback
     }
@@ -202,10 +204,10 @@
     };
 
     @DataClass.Generated(
-            time = 1611614699049L,
+            time = 1615850184524L,
             codegenVersion = "1.0.22",
             sourceFile = "frameworks/base/core/java/android/content/pm/ProcessInfo.java",
-            inputSignatures = "public @android.annotation.NonNull java.lang.String name\npublic @android.annotation.Nullable @com.android.internal.util.DataClass.ParcelWith(com.android.internal.util.Parcelling.BuiltIn.ForInternedStringArraySet.class) android.util.ArraySet<java.lang.String> deniedPermissions\npublic @android.content.pm.ApplicationInfo.GwpAsanMode int gwpAsanMode\npublic @android.content.pm.ApplicationInfo.MemtagMode int memtagMode\npublic @android.annotation.Nullable java.lang.Boolean nativeHeapZeroInit\nclass ProcessInfo extends java.lang.Object implements [android.os.Parcelable]\n@com.android.internal.util.DataClass(genGetters=true, genSetters=false, genParcelable=true, genAidl=false, genBuilder=false)")
+            inputSignatures = "public @android.annotation.NonNull java.lang.String name\npublic @android.annotation.Nullable @com.android.internal.util.DataClass.ParcelWith(com.android.internal.util.Parcelling.BuiltIn.ForInternedStringArraySet.class) android.util.ArraySet<java.lang.String> deniedPermissions\npublic @android.content.pm.ApplicationInfo.GwpAsanMode int gwpAsanMode\npublic @android.content.pm.ApplicationInfo.MemtagMode int memtagMode\npublic @android.content.pm.ApplicationInfo.NativeHeapZeroInitialized int nativeHeapZeroInitialized\nclass ProcessInfo extends java.lang.Object implements [android.os.Parcelable]\n@com.android.internal.util.DataClass(genGetters=true, genSetters=false, genParcelable=true, genAidl=false, genBuilder=false)")
     @Deprecated
     private void __metadata() {}
 
diff --git a/core/java/android/content/pm/parsing/ParsingPackage.java b/core/java/android/content/pm/parsing/ParsingPackage.java
index 983a02c..61b5b72 100644
--- a/core/java/android/content/pm/parsing/ParsingPackage.java
+++ b/core/java/android/content/pm/parsing/ParsingPackage.java
@@ -19,6 +19,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.content.Intent;
+import android.content.pm.ApplicationInfo;
 import android.content.pm.ConfigurationInfo;
 import android.content.pm.FeatureGroupInfo;
 import android.content.pm.FeatureInfo;
@@ -239,11 +240,12 @@
 
     ParsingPackage setEnabled(boolean enabled);
 
-    ParsingPackage setGwpAsanMode(int gwpAsanMode);
+    ParsingPackage setGwpAsanMode(@ApplicationInfo.GwpAsanMode int gwpAsanMode);
 
-    ParsingPackage setMemtagMode(int memtagMode);
+    ParsingPackage setMemtagMode(@ApplicationInfo.MemtagMode int memtagMode);
 
-    ParsingPackage setNativeHeapZeroInit(@Nullable Boolean nativeHeapZeroInit);
+    ParsingPackage setNativeHeapZeroInitialized(
+            @ApplicationInfo.NativeHeapZeroInitialized int nativeHeapZeroInitialized);
 
     ParsingPackage setCrossProfile(boolean crossProfile);
 
diff --git a/core/java/android/content/pm/parsing/ParsingPackageImpl.java b/core/java/android/content/pm/parsing/ParsingPackageImpl.java
index bb4480e..c9a03c1 100644
--- a/core/java/android/content/pm/parsing/ParsingPackageImpl.java
+++ b/core/java/android/content/pm/parsing/ParsingPackageImpl.java
@@ -417,12 +417,14 @@
     private int autoRevokePermissions;
     private boolean preserveLegacyExternalStorage;
 
-    protected int gwpAsanMode;
-    protected int memtagMode;
+    @ApplicationInfo.GwpAsanMode
+    private int gwpAsanMode;
 
-    @Nullable
-    @DataClass.ParcelWith(ForBoolean.class)
-    private Boolean nativeHeapZeroInit;
+    @ApplicationInfo.MemtagMode
+    private int memtagMode;
+
+    @ApplicationInfo.NativeHeapZeroInitialized
+    private int nativeHeapZeroInitialized;
 
     // TODO(chiuwinson): Non-null
     @Nullable
@@ -934,7 +936,7 @@
         appInfo.crossProfile = isCrossProfile();
         appInfo.setGwpAsanMode(gwpAsanMode);
         appInfo.setMemtagMode(memtagMode);
-        appInfo.setNativeHeapZeroInit(nativeHeapZeroInit);
+        appInfo.setNativeHeapZeroInitialized(nativeHeapZeroInitialized);
         appInfo.setBaseCodePath(baseCodePath);
         appInfo.setBaseResourcePath(baseCodePath);
         appInfo.setCodePath(codePath);
@@ -1121,7 +1123,7 @@
         dest.writeInt(this.gwpAsanMode);
         dest.writeSparseIntArray(this.minExtensionVersions);
         dest.writeInt(this.memtagMode);
-        sForBoolean.parcel(this.nativeHeapZeroInit, dest, flags);
+        dest.writeInt(this.nativeHeapZeroInitialized);
     }
 
     public ParsingPackageImpl(Parcel in) {
@@ -1284,7 +1286,7 @@
         this.gwpAsanMode = in.readInt();
         this.minExtensionVersions = in.readSparseIntArray();
         this.memtagMode = in.readInt();
-        this.nativeHeapZeroInit = sForBoolean.unparcel(in);
+        this.nativeHeapZeroInitialized = in.readInt();
     }
 
     public static final Parcelable.Creator<ParsingPackageImpl> CREATOR =
@@ -2012,20 +2014,22 @@
         return directBootAware;
     }
 
+    @ApplicationInfo.GwpAsanMode
     @Override
     public int getGwpAsanMode() {
         return gwpAsanMode;
     }
 
+    @ApplicationInfo.MemtagMode
     @Override
     public int getMemtagMode() {
         return memtagMode;
     }
 
-    @Nullable
+    @ApplicationInfo.NativeHeapZeroInitialized
     @Override
-    public Boolean isNativeHeapZeroInit() {
-        return nativeHeapZeroInit;
+    public int getNativeHeapZeroInitialized() {
+        return nativeHeapZeroInitialized;
     }
 
     @Override
@@ -2495,20 +2499,21 @@
     }
 
     @Override
-    public ParsingPackageImpl setGwpAsanMode(int value) {
+    public ParsingPackageImpl setGwpAsanMode(@ApplicationInfo.GwpAsanMode int value) {
         gwpAsanMode = value;
         return this;
     }
 
     @Override
-    public ParsingPackageImpl setMemtagMode(int value) {
+    public ParsingPackageImpl setMemtagMode(@ApplicationInfo.MemtagMode int value) {
         memtagMode = value;
         return this;
     }
 
     @Override
-    public ParsingPackageImpl setNativeHeapZeroInit(@Nullable Boolean value) {
-        nativeHeapZeroInit = value;
+    public ParsingPackageImpl setNativeHeapZeroInitialized(
+            @ApplicationInfo.NativeHeapZeroInitialized int value) {
+        nativeHeapZeroInitialized = value;
         return this;
     }
 
diff --git a/core/java/android/content/pm/parsing/ParsingPackageRead.java b/core/java/android/content/pm/parsing/ParsingPackageRead.java
index cd91e28..0311774 100644
--- a/core/java/android/content/pm/parsing/ParsingPackageRead.java
+++ b/core/java/android/content/pm/parsing/ParsingPackageRead.java
@@ -854,20 +854,22 @@
      * @see ApplicationInfo#gwpAsanMode
      * @see R.styleable#AndroidManifest_gwpAsanMode
      */
-    public int getGwpAsanMode();
+    @ApplicationInfo.GwpAsanMode
+    int getGwpAsanMode();
 
     /**
      * @see ApplicationInfo#memtagMode
      * @see R.styleable#AndroidManifest_memtagMode
      */
+    @ApplicationInfo.MemtagMode
     int getMemtagMode();
 
-      /**
-     * @see ApplicationInfo#nativeHeapZeroInit
-     * @see R.styleable#AndroidManifest_nativeHeapZeroInit
+    /**
+     * @see ApplicationInfo#nativeHeapZeroInitialized
+     * @see R.styleable#AndroidManifest_nativeHeapZeroInitialized
      */
-    @Nullable
-    Boolean isNativeHeapZeroInit();
+    @ApplicationInfo.NativeHeapZeroInitialized
+    int getNativeHeapZeroInitialized();
 
     // TODO(b/135203078): Hide and enforce going through PackageInfoUtils
     ApplicationInfo toAppInfoWithoutState();
diff --git a/core/java/android/content/pm/parsing/ParsingPackageUtils.java b/core/java/android/content/pm/parsing/ParsingPackageUtils.java
index 890ba8a..c6a335a 100644
--- a/core/java/android/content/pm/parsing/ParsingPackageUtils.java
+++ b/core/java/android/content/pm/parsing/ParsingPackageUtils.java
@@ -1800,9 +1800,11 @@
 
             pkg.setGwpAsanMode(sa.getInt(R.styleable.AndroidManifestApplication_gwpAsanMode, -1));
             pkg.setMemtagMode(sa.getInt(R.styleable.AndroidManifestApplication_memtagMode, -1));
-            if (sa.hasValue(R.styleable.AndroidManifestApplication_nativeHeapZeroInit)) {
-                pkg.setNativeHeapZeroInit(sa.getBoolean(
-                        R.styleable.AndroidManifestApplication_nativeHeapZeroInit, false));
+            if (sa.hasValue(R.styleable.AndroidManifestApplication_nativeHeapZeroInitialized)) {
+                Boolean v = sa.getBoolean(
+                        R.styleable.AndroidManifestApplication_nativeHeapZeroInitialized, false);
+                pkg.setNativeHeapZeroInitialized(
+                        v ? ApplicationInfo.ZEROINIT_ENABLED : ApplicationInfo.ZEROINIT_DISABLED);
             }
         } finally {
             sa.recycle();
diff --git a/core/java/android/content/pm/parsing/component/ParsedProcess.java b/core/java/android/content/pm/parsing/component/ParsedProcess.java
index 89fef9d..54a60d3 100644
--- a/core/java/android/content/pm/parsing/component/ParsedProcess.java
+++ b/core/java/android/content/pm/parsing/component/ParsedProcess.java
@@ -42,10 +42,12 @@
     @DataClass.ParcelWith(Parcelling.BuiltIn.ForInternedStringSet.class)
     protected Set<String> deniedPermissions = emptySet();
 
+    @ApplicationInfo.GwpAsanMode
     protected int gwpAsanMode = ApplicationInfo.GWP_ASAN_DEFAULT;
+    @ApplicationInfo.MemtagMode
     protected int memtagMode = ApplicationInfo.MEMTAG_DEFAULT;
-    @Nullable
-    protected Boolean nativeHeapZeroInit = null;
+    @ApplicationInfo.NativeHeapZeroInitialized
+    protected int nativeHeapZeroInitialized = ApplicationInfo.ZEROINIT_DEFAULT;
 
     public ParsedProcess() {
     }
@@ -78,9 +80,9 @@
     public ParsedProcess(
             @NonNull String name,
             @NonNull Set<String> deniedPermissions,
-            int gwpAsanMode,
-            int memtagMode,
-            @Nullable Boolean nativeHeapZeroInit) {
+            @ApplicationInfo.GwpAsanMode int gwpAsanMode,
+            @ApplicationInfo.MemtagMode int memtagMode,
+            @ApplicationInfo.NativeHeapZeroInitialized int nativeHeapZeroInitialized) {
         this.name = name;
         com.android.internal.util.AnnotationValidations.validate(
                 NonNull.class, null, name);
@@ -88,8 +90,14 @@
         com.android.internal.util.AnnotationValidations.validate(
                 NonNull.class, null, deniedPermissions);
         this.gwpAsanMode = gwpAsanMode;
+        com.android.internal.util.AnnotationValidations.validate(
+                ApplicationInfo.GwpAsanMode.class, null, gwpAsanMode);
         this.memtagMode = memtagMode;
-        this.nativeHeapZeroInit = nativeHeapZeroInit;
+        com.android.internal.util.AnnotationValidations.validate(
+                ApplicationInfo.MemtagMode.class, null, memtagMode);
+        this.nativeHeapZeroInitialized = nativeHeapZeroInitialized;
+        com.android.internal.util.AnnotationValidations.validate(
+                ApplicationInfo.NativeHeapZeroInitialized.class, null, nativeHeapZeroInitialized);
 
         // onConstructed(); // You can define this method to get a callback
     }
@@ -105,18 +113,18 @@
     }
 
     @DataClass.Generated.Member
-    public int getGwpAsanMode() {
+    public @ApplicationInfo.GwpAsanMode int getGwpAsanMode() {
         return gwpAsanMode;
     }
 
     @DataClass.Generated.Member
-    public int getMemtagMode() {
+    public @ApplicationInfo.MemtagMode int getMemtagMode() {
         return memtagMode;
     }
 
     @DataClass.Generated.Member
-    public @Nullable Boolean getNativeHeapZeroInit() {
-        return nativeHeapZeroInit;
+    public @ApplicationInfo.NativeHeapZeroInitialized int getNativeHeapZeroInitialized() {
+        return nativeHeapZeroInitialized;
     }
 
     @DataClass.Generated.Member
@@ -136,14 +144,11 @@
         // You can override field parcelling by defining methods like:
         // void parcelFieldName(Parcel dest, int flags) { ... }
 
-        byte flg = 0;
-        if (nativeHeapZeroInit != null) flg |= 0x10;
-        dest.writeByte(flg);
         dest.writeString(name);
         sParcellingForDeniedPermissions.parcel(deniedPermissions, dest, flags);
         dest.writeInt(gwpAsanMode);
         dest.writeInt(memtagMode);
-        if (nativeHeapZeroInit != null) dest.writeBoolean(nativeHeapZeroInit);
+        dest.writeInt(nativeHeapZeroInitialized);
     }
 
     @Override
@@ -157,12 +162,11 @@
         // You can override field unparcelling by defining methods like:
         // static FieldType unparcelFieldName(Parcel in) { ... }
 
-        byte flg = in.readByte();
         String _name = in.readString();
         Set<String> _deniedPermissions = sParcellingForDeniedPermissions.unparcel(in);
         int _gwpAsanMode = in.readInt();
         int _memtagMode = in.readInt();
-        Boolean _nativeHeapZeroInit = (flg & 0x10) == 0 ? null : (Boolean) in.readBoolean();
+        int _nativeHeapZeroInitialized = in.readInt();
 
         this.name = _name;
         com.android.internal.util.AnnotationValidations.validate(
@@ -171,8 +175,14 @@
         com.android.internal.util.AnnotationValidations.validate(
                 NonNull.class, null, deniedPermissions);
         this.gwpAsanMode = _gwpAsanMode;
+        com.android.internal.util.AnnotationValidations.validate(
+                ApplicationInfo.GwpAsanMode.class, null, gwpAsanMode);
         this.memtagMode = _memtagMode;
-        this.nativeHeapZeroInit = _nativeHeapZeroInit;
+        com.android.internal.util.AnnotationValidations.validate(
+                ApplicationInfo.MemtagMode.class, null, memtagMode);
+        this.nativeHeapZeroInitialized = _nativeHeapZeroInitialized;
+        com.android.internal.util.AnnotationValidations.validate(
+                ApplicationInfo.NativeHeapZeroInitialized.class, null, nativeHeapZeroInitialized);
 
         // onConstructed(); // You can define this method to get a callback
     }
@@ -192,10 +202,10 @@
     };
 
     @DataClass.Generated(
-            time = 1611615591258L,
+            time = 1615850515058L,
             codegenVersion = "1.0.22",
             sourceFile = "frameworks/base/core/java/android/content/pm/parsing/component/ParsedProcess.java",
-            inputSignatures = "protected @android.annotation.NonNull java.lang.String name\nprotected @android.annotation.NonNull @com.android.internal.util.DataClass.ParcelWith(com.android.internal.util.Parcelling.BuiltIn.ForInternedStringSet.class) java.util.Set<java.lang.String> deniedPermissions\nprotected  int gwpAsanMode\nprotected  int memtagMode\nprotected @android.annotation.Nullable java.lang.Boolean nativeHeapZeroInit\npublic  void addStateFrom(android.content.pm.parsing.component.ParsedProcess)\nclass ParsedProcess extends java.lang.Object implements [android.os.Parcelable]\n@com.android.internal.util.DataClass(genGetters=true, genSetters=false, genParcelable=true, genAidl=false, genBuilder=false)")
+            inputSignatures = "protected @android.annotation.NonNull java.lang.String name\nprotected @android.annotation.NonNull @com.android.internal.util.DataClass.ParcelWith(com.android.internal.util.Parcelling.BuiltIn.ForInternedStringSet.class) java.util.Set<java.lang.String> deniedPermissions\nprotected @android.content.pm.ApplicationInfo.GwpAsanMode int gwpAsanMode\nprotected @android.content.pm.ApplicationInfo.MemtagMode int memtagMode\nprotected @android.content.pm.ApplicationInfo.NativeHeapZeroInitialized int nativeHeapZeroInitialized\npublic  void addStateFrom(android.content.pm.parsing.component.ParsedProcess)\nclass ParsedProcess extends java.lang.Object implements [android.os.Parcelable]\n@com.android.internal.util.DataClass(genGetters=true, genSetters=false, genParcelable=true, genAidl=false, genBuilder=false)")
     @Deprecated
     private void __metadata() {}
 
diff --git a/core/java/android/content/pm/parsing/component/ParsedProcessUtils.java b/core/java/android/content/pm/parsing/component/ParsedProcessUtils.java
index 082593e..c81d942 100644
--- a/core/java/android/content/pm/parsing/component/ParsedProcessUtils.java
+++ b/core/java/android/content/pm/parsing/component/ParsedProcessUtils.java
@@ -17,6 +17,7 @@
 package android.content.pm.parsing.component;
 
 import android.annotation.NonNull;
+import android.content.pm.ApplicationInfo;
 import android.content.pm.parsing.ParsingPackage;
 import android.content.pm.parsing.ParsingUtils;
 import android.content.pm.parsing.result.ParseInput;
@@ -106,9 +107,11 @@
 
             proc.gwpAsanMode = sa.getInt(R.styleable.AndroidManifestProcess_gwpAsanMode, -1);
             proc.memtagMode = sa.getInt(R.styleable.AndroidManifestProcess_memtagMode, -1);
-            if (sa.hasValue(R.styleable.AndroidManifestProcess_nativeHeapZeroInit)) {
-                proc.nativeHeapZeroInit =
-                        sa.getBoolean(R.styleable.AndroidManifestProcess_nativeHeapZeroInit, false);
+            if (sa.hasValue(R.styleable.AndroidManifestProcess_nativeHeapZeroInitialized)) {
+                Boolean v = sa.getBoolean(
+                        R.styleable.AndroidManifestProcess_nativeHeapZeroInitialized, false);
+                proc.nativeHeapZeroInitialized =
+                        v ? ApplicationInfo.ZEROINIT_ENABLED : ApplicationInfo.ZEROINIT_DISABLED;
             }
         } finally {
             sa.recycle();
diff --git a/core/java/android/hardware/biometrics/CryptoObject.java b/core/java/android/hardware/biometrics/CryptoObject.java
index 0af18df..7648cf2 100644
--- a/core/java/android/hardware/biometrics/CryptoObject.java
+++ b/core/java/android/hardware/biometrics/CryptoObject.java
@@ -18,7 +18,7 @@
 
 import android.annotation.NonNull;
 import android.security.identity.IdentityCredential;
-import android.security.keystore.AndroidKeyStoreProvider;
+import android.security.keystore2.AndroidKeyStoreProvider;
 
 import java.security.Signature;
 
diff --git a/core/java/android/hardware/camera2/CameraManager.java b/core/java/android/hardware/camera2/CameraManager.java
index 933dee3..609da31 100644
--- a/core/java/android/hardware/camera2/CameraManager.java
+++ b/core/java/android/hardware/camera2/CameraManager.java
@@ -1363,6 +1363,8 @@
                     // devices going offline (in real world scenarios, these permissions aren't
                     // changeable). Future calls to getCameraIdList() will reflect the changes in
                     // the camera id list after getCameraIdListNoLazy() is called.
+                    // We need to remove the torch ids which may have been associated with the
+                    // devices removed as well. This is the same situation.
                     cameraStatuses = mCameraService.addListener(testListener);
                     mCameraService.removeListener(testListener);
                     for (CameraStatus c : cameraStatuses) {
@@ -1381,6 +1383,7 @@
                     }
                     for (String id : deviceIdsToRemove) {
                         onStatusChangedLocked(ICameraServiceListener.STATUS_NOT_PRESENT, id);
+                        mTorchStatus.remove(id);
                     }
                 } catch (ServiceSpecificException e) {
                     // Unexpected failure
diff --git a/core/java/android/hardware/hdmi/HdmiAudioSystemClient.java b/core/java/android/hardware/hdmi/HdmiAudioSystemClient.java
index bdd5ab6..e7d76f6 100644
--- a/core/java/android/hardware/hdmi/HdmiAudioSystemClient.java
+++ b/core/java/android/hardware/hdmi/HdmiAudioSystemClient.java
@@ -63,7 +63,6 @@
      *
      * @hide
      */
-    // TODO(b/110094868): unhide and add @SystemApi for Q
     public interface SetSystemAudioModeCallback {
         /**
          * Called when the input was changed.
@@ -74,7 +73,6 @@
     }
 
     /** @hide */
-    // TODO(b/110094868): unhide and add @SystemApi for Q
     @Override
     public int getDeviceType() {
         return HdmiDeviceInfo.DEVICE_AUDIO_SYSTEM;
@@ -143,7 +141,6 @@
      *
      * @hide
      */
-    // TODO(b/110094868): unhide and add @SystemApi for Q
     public void setSystemAudioMode(boolean state, @NonNull SetSystemAudioModeCallback callback) {
         // TODO(amyjojo): implement this when needed.
     }
@@ -156,7 +153,6 @@
      *
      * @hide
      */
-    // TODO(b/110094868): unhide and add @SystemApi for Q
     public void setSystemAudioModeOnForAudioOnlySource() {
         try {
             mService.setSystemAudioModeOnForAudioOnlySource();
diff --git a/core/java/android/hardware/hdmi/HdmiClient.java b/core/java/android/hardware/hdmi/HdmiClient.java
index a921215..0c21746 100644
--- a/core/java/android/hardware/hdmi/HdmiClient.java
+++ b/core/java/android/hardware/hdmi/HdmiClient.java
@@ -65,7 +65,6 @@
      * @param isPressed true if this is key press event
      *
      * @hide
-     * TODO(b/110094868): unhide for Q
      */
     public void sendVolumeKeyEvent(int keyCode, boolean isPressed) {
         try {
diff --git a/core/java/android/hardware/hdmi/HdmiControlManager.java b/core/java/android/hardware/hdmi/HdmiControlManager.java
index f25b06b..980c11a 100644
--- a/core/java/android/hardware/hdmi/HdmiControlManager.java
+++ b/core/java/android/hardware/hdmi/HdmiControlManager.java
@@ -472,7 +472,6 @@
      *
      * @return {@link HdmiAudioSystemClient} instance. {@code null} on failure.
      *
-     * TODO(b/110094868): unhide for Q
      * @hide
      */
     @Nullable
diff --git a/core/java/android/hardware/hdmi/HdmiPlaybackClient.java b/core/java/android/hardware/hdmi/HdmiPlaybackClient.java
index f13326b..d06bc1d 100644
--- a/core/java/android/hardware/hdmi/HdmiPlaybackClient.java
+++ b/core/java/android/hardware/hdmi/HdmiPlaybackClient.java
@@ -84,7 +84,6 @@
      *         of the result
      */
     public void oneTouchPlay(OneTouchPlayCallback callback) {
-        // TODO: Use PendingResult.
         try {
             mService.oneTouchPlay(getCallbackWrapper(callback));
         } catch (RemoteException e) {
diff --git a/core/java/android/hardware/hdmi/HdmiUtils.java b/core/java/android/hardware/hdmi/HdmiUtils.java
index 8c94b78..2f4378e 100644
--- a/core/java/android/hardware/hdmi/HdmiUtils.java
+++ b/core/java/android/hardware/hdmi/HdmiUtils.java
@@ -24,7 +24,6 @@
 /**
  * Various utilities related to HDMI CEC.
  *
- * TODO(b/110094868): unhide for Q
  * @hide
  */
 public final class HdmiUtils {
@@ -84,7 +83,6 @@
     }
 
     /**
-     * TODO(b/110094868): unhide for Q
      * @hide
      */
     @Retention(RetentionPolicy.SOURCE)
@@ -95,49 +93,49 @@
     public @interface HdmiAddressRelativePosition {}
     /**
      * HDMI relative position is not determined.
-     * TODO(b/110094868): unhide for Q
+     *
      * @hide
      */
     public static final int HDMI_RELATIVE_POSITION_UNKNOWN = 0;
     /**
      * HDMI relative position: directly blow the device.
-     * TODO(b/110094868): unhide for Q
+     *
      * @hide
      */
     public static final int HDMI_RELATIVE_POSITION_DIRECTLY_BELOW = 1;
     /**
      * HDMI relative position: indirectly below the device.
-     * TODO(b/110094868): unhide for Q
+     *
      * @hide
      */
     public static final int HDMI_RELATIVE_POSITION_BELOW = 2;
     /**
      * HDMI relative position: the same device.
-     * TODO(b/110094868): unhide for Q
+     *
      * @hide
      */
     public static final int HDMI_RELATIVE_POSITION_SAME = 3;
     /**
      * HDMI relative position: directly above the device.
-     * TODO(b/110094868): unhide for Q
+     *
      * @hide
      */
     public static final int HDMI_RELATIVE_POSITION_DIRECTLY_ABOVE = 4;
     /**
      * HDMI relative position: indirectly above the device.
-     * TODO(b/110094868): unhide for Q
+     *
      * @hide
      */
     public static final int HDMI_RELATIVE_POSITION_ABOVE = 5;
     /**
      * HDMI relative position: directly below a same device.
-     * TODO(b/110094868): unhide for Q
+     *
      * @hide
      */
     public static final int HDMI_RELATIVE_POSITION_SIBLING = 6;
     /**
      * HDMI relative position: different branch.
-     * TODO(b/110094868): unhide for Q
+     *
      * @hide
      */
     public static final int HDMI_RELATIVE_POSITION_DIFFERENT_BRANCH = 7;
diff --git a/core/java/android/net/DnsResolverServiceManager.java b/core/java/android/net/DnsResolverServiceManager.java
deleted file mode 100644
index 1597322..0000000
--- a/core/java/android/net/DnsResolverServiceManager.java
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package android.net;
-
-import android.annotation.NonNull;
-import android.annotation.RequiresPermission;
-import android.annotation.SystemApi;
-import android.content.Context;
-import android.os.IBinder;
-import android.os.ServiceManager;
-
-import java.util.Objects;
-
-/**
- * Provides a way to obtain the DnsResolver binder objects.
- *
- * @hide
- */
-@SystemApi
-public class DnsResolverServiceManager {
-    /**
-     * Name to retrieve a {@link android.net.IDnsResolver} IBinder.
-     */
-    private static final String DNS_RESOLVER_SERVICE = "dnsresolver";
-
-    private DnsResolverServiceManager() {}
-
-    /**
-     * Get an {@link IBinder} representing the DnsResolver stable AIDL interface
-     *
-     * @param context the context for permission check.
-     * @return {@link android.net.IDnsResolver} IBinder.
-     */
-    @NonNull
-    @RequiresPermission(NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK)
-    public static IBinder getService(@NonNull final Context context) {
-        Objects.requireNonNull(context);
-        context.enforceCallingOrSelfPermission(NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK,
-                "DnsResolverServiceManager");
-        try {
-            return ServiceManager.getServiceOrThrow(DNS_RESOLVER_SERVICE);
-        } catch (ServiceManager.ServiceNotFoundException e) {
-            // Catch ServiceManager#ServiceNotFoundException and rethrow IllegalStateException
-            // because ServiceManager#ServiceNotFoundException is @hide so that it can't be listed
-            // on the system api. Thus, rethrow IllegalStateException if dns resolver service cannot
-            // be found.
-            throw new IllegalStateException("Cannot find dns resolver service.");
-        }
-    }
-}
diff --git a/core/java/android/net/EthernetNetworkSpecifier.java b/core/java/android/net/EthernetNetworkSpecifier.java
index e168588..62c5761 100644
--- a/core/java/android/net/EthernetNetworkSpecifier.java
+++ b/core/java/android/net/EthernetNetworkSpecifier.java
@@ -42,15 +42,22 @@
     @NonNull
     private final String mInterfaceName;
 
+    /**
+     * Create a new EthernetNetworkSpecifier.
+     * @param interfaceName Name of the ethernet interface the specifier refers to.
+     */
     public EthernetNetworkSpecifier(@NonNull String interfaceName) {
         Preconditions.checkStringNotEmpty(interfaceName);
         mInterfaceName = interfaceName;
     }
 
-    // This may be null in the future to support specifiers based on data other than the interface
-    // name.
+    /**
+     * Get the name of the ethernet interface the specifier refers to.
+     */
     @Nullable
     public String getInterfaceName() {
+        // This may be null in the future to support specifiers based on data other than the
+        // interface name.
         return mInterfaceName;
     }
 
diff --git a/core/java/android/net/INetworkPolicyManager.aidl b/core/java/android/net/INetworkPolicyManager.aidl
index 171c6a2..f50aa99 100644
--- a/core/java/android/net/INetworkPolicyManager.aidl
+++ b/core/java/android/net/INetworkPolicyManager.aidl
@@ -78,5 +78,4 @@
 
     boolean isUidNetworkingBlocked(int uid, boolean meteredNetwork);
     boolean isUidRestrictedOnMeteredNetworks(int uid);
-    boolean checkUidNetworkingBlocked(int uid, int uidRules, boolean isNetworkMetered, boolean isBackgroundRestricted);
 }
diff --git a/core/java/android/net/NetworkIdentity.java b/core/java/android/net/NetworkIdentity.java
index b037261..1eef7d9 100644
--- a/core/java/android/net/NetworkIdentity.java
+++ b/core/java/android/net/NetworkIdentity.java
@@ -198,15 +198,11 @@
         final int oemManaged = getOemBitfield(snapshot.networkCapabilities);
 
         if (legacyType == TYPE_WIFI) {
-            if (snapshot.networkCapabilities.getSsid() != null) {
-                networkId = snapshot.networkCapabilities.getSsid();
-                if (networkId == null) {
-                    // TODO: Figure out if this code path never runs. If so, remove them.
-                    final WifiManager wifi = (WifiManager) context.getSystemService(
-                            Context.WIFI_SERVICE);
-                    final WifiInfo info = wifi.getConnectionInfo();
-                    networkId = info != null ? info.getSSID() : null;
-                }
+            networkId = snapshot.networkCapabilities.getSsid();
+            if (networkId == null) {
+                final WifiManager wifi = context.getSystemService(WifiManager.class);
+                final WifiInfo info = wifi.getConnectionInfo();
+                networkId = info != null ? info.getSSID() : null;
             }
         }
 
diff --git a/core/java/android/net/NetworkPolicyManager.java b/core/java/android/net/NetworkPolicyManager.java
index 68606ec..b074fad 100644
--- a/core/java/android/net/NetworkPolicyManager.java
+++ b/core/java/android/net/NetworkPolicyManager.java
@@ -564,31 +564,6 @@
     }
 
     /**
-     * Figure out if networking is blocked for a given set of conditions.
-     *
-     * This is used by ConnectivityService via passing stale copies of conditions, so it must not
-     * take any locks.
-     *
-     * @param uid The target uid.
-     * @param uidRules The uid rules which are obtained from NetworkPolicyManagerService.
-     * @param isNetworkMetered True if the network is metered.
-     * @param isBackgroundRestricted True if data saver is enabled.
-     *
-     * @return true if networking is blocked for the UID under the specified conditions.
-     *
-     * @hide
-     */
-    public boolean checkUidNetworkingBlocked(int uid, int uidRules,
-            boolean isNetworkMetered, boolean isBackgroundRestricted) {
-        try {
-            return mService.checkUidNetworkingBlocked(uid, uidRules, isNetworkMetered,
-                    isBackgroundRestricted);
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
-    }
-
-    /**
      * Check that the given uid is restricted from doing networking on metered networks.
      *
      * @param uid The target uid.
@@ -797,6 +772,12 @@
         return DebugUtils.flagsToString(NetworkPolicyManager.class, "BLOCKED_", blockedReasons);
     }
 
+    /** @hide */
+    @NonNull
+    public static String allowedReasonsToString(int allowedReasons) {
+        return DebugUtils.flagsToString(NetworkPolicyManager.class, "ALLOWED_", allowedReasons);
+    }
+
     /**
      * Register a {@link NetworkPolicyCallback} to listen for changes to network blocked status
      * of apps.
diff --git a/core/java/android/net/NetworkWatchlistManager.java b/core/java/android/net/NetworkWatchlistManager.java
index 8f6510e..da01dcb 100644
--- a/core/java/android/net/NetworkWatchlistManager.java
+++ b/core/java/android/net/NetworkWatchlistManager.java
@@ -19,6 +19,7 @@
 import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
+import android.annotation.TestApi;
 import android.content.Context;
 import android.os.RemoteException;
 import android.os.ServiceManager;
@@ -31,6 +32,7 @@
  * Class that manage network watchlist in system.
  * @hide
  */
+@TestApi
 @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
 @SystemService(Context.NETWORK_WATCHLIST_SERVICE)
 public class NetworkWatchlistManager {
diff --git a/core/java/android/net/VpnManager.java b/core/java/android/net/VpnManager.java
index 5f65d46..662ebb3 100644
--- a/core/java/android/net/VpnManager.java
+++ b/core/java/android/net/VpnManager.java
@@ -78,10 +78,8 @@
 
     /**
      * An IPsec VPN created by the built-in LegacyVpnRunner.
-     * @deprecated new Android devices should use VPN_TYPE_PLATFORM instead.
      * @hide
      */
-    @Deprecated
     @SystemApi(client = MODULE_LIBRARIES)
     public static final int TYPE_VPN_LEGACY = 3;
 
@@ -418,4 +416,4 @@
             throw e.rethrowFromSystemServer();
         }
     }
-}
\ No newline at end of file
+}
diff --git a/core/java/android/net/vcn/VcnManager.java b/core/java/android/net/vcn/VcnManager.java
index d09094c..344b20c 100644
--- a/core/java/android/net/vcn/VcnManager.java
+++ b/core/java/android/net/vcn/VcnManager.java
@@ -437,7 +437,7 @@
          * Invoked when status of the VCN for this callback's subscription group changes.
          *
          * @param statusCode the code for the status change encountered by this {@link
-         *     VcnStatusCallback}'s subscription group.
+         *     VcnStatusCallback}'s subscription group. This value will be one of VCN_STATUS_CODE_*.
          */
         public abstract void onStatusChanged(@VcnStatusCode int statusCode);
 
@@ -449,7 +449,8 @@
          *     encountering an error. This will match the name for exactly one {@link
          *     VcnGatewayConnectionConfig} for the {@link VcnConfig} configured for this callback's
          *     subscription group
-         * @param errorCode the code to indicate the error that occurred
+         * @param errorCode the code to indicate the error that occurred. This value will be one of
+         *     VCN_ERROR_CODE_*.
          * @param detail Throwable to provide additional information about the error, or {@code
          *     null} if none
          */
diff --git a/core/java/android/net/vcn/persistablebundleutils/IkeSessionParamsUtils.java b/core/java/android/net/vcn/persistablebundleutils/IkeSessionParamsUtils.java
index 9d3462c..8950c4b 100644
--- a/core/java/android/net/vcn/persistablebundleutils/IkeSessionParamsUtils.java
+++ b/core/java/android/net/vcn/persistablebundleutils/IkeSessionParamsUtils.java
@@ -83,7 +83,7 @@
     /** Serializes an IkeSessionParams to a PersistableBundle. */
     @NonNull
     public static PersistableBundle toPersistableBundle(@NonNull IkeSessionParams params) {
-        if (params.getConfiguredNetwork() != null || params.getIke3gppExtension() != null) {
+        if (params.getNetwork() != null || params.getIke3gppExtension() != null) {
             throw new IllegalStateException(
                     "Cannot convert a IkeSessionParams with a caller configured network or with"
                             + " 3GPP extension enabled");
diff --git a/core/java/android/nfc/INfcAdapter.aidl b/core/java/android/nfc/INfcAdapter.aidl
index 11445e9..cb9a3e4 100644
--- a/core/java/android/nfc/INfcAdapter.aidl
+++ b/core/java/android/nfc/INfcAdapter.aidl
@@ -24,6 +24,7 @@
 import android.nfc.TechListParcel;
 import android.nfc.IAppCallback;
 import android.nfc.INfcAdapterExtras;
+import android.nfc.INfcControllerAlwaysOnListener;
 import android.nfc.INfcTag;
 import android.nfc.INfcCardEmulation;
 import android.nfc.INfcFCardEmulation;
@@ -75,4 +76,6 @@
     boolean setControllerAlwaysOn(boolean value);
     boolean isControllerAlwaysOn();
     boolean isControllerAlwaysOnSupported();
+    void registerControllerAlwaysOnListener(in INfcControllerAlwaysOnListener listener);
+    void unregisterControllerAlwaysOnListener(in INfcControllerAlwaysOnListener listener);
 }
diff --git a/core/java/android/nfc/INfcControllerAlwaysOnListener.aidl b/core/java/android/nfc/INfcControllerAlwaysOnListener.aidl
new file mode 100644
index 0000000..1bb7680
--- /dev/null
+++ b/core/java/android/nfc/INfcControllerAlwaysOnListener.aidl
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.nfc;
+
+/**
+ * @hide
+ */
+oneway interface INfcControllerAlwaysOnListener {
+  /**
+   * Called whenever the controller always on state changes
+   *
+   * @param isEnabled true if the state is enabled, false otherwise
+   */
+  void onControllerAlwaysOnChanged(boolean isEnabled);
+}
diff --git a/core/java/android/nfc/NfcAdapter.java b/core/java/android/nfc/NfcAdapter.java
index eed2c77..64c1211 100644
--- a/core/java/android/nfc/NfcAdapter.java
+++ b/core/java/android/nfc/NfcAdapter.java
@@ -16,6 +16,7 @@
 
 package android.nfc;
 
+import android.annotation.CallbackExecutor;
 import android.annotation.NonNull;
 import android.annotation.RequiresPermission;
 import android.annotation.SdkConstant;
@@ -47,6 +48,7 @@
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+import java.util.concurrent.Executor;
 
 /**
  * Represents the local NFC adapter.
@@ -65,6 +67,8 @@
 public final class NfcAdapter {
     static final String TAG = "NFC";
 
+    private final NfcControllerAlwaysOnListener mControllerAlwaysOnListener;
+
     /**
      * Intent to start an activity when a tag with NDEF payload is discovered.
      *
@@ -350,22 +354,6 @@
             "android.nfc.extra.HANDOVER_TRANSFER_STATUS";
 
     /** @hide */
-    public static final String ACTION_ALWAYS_ON_STATE_CHANGED =
-            "android.nfc.action.ALWAYS_ON_STATE_CHANGED";
-
-    /**
-     * Used as an int extra field in {@link #ACTION_ALWAYS_ON_STATE_CHANGED}
-     * intents to request the current power state. Possible values are:
-     * {@link #STATE_OFF},
-     * {@link #STATE_TURNING_ON},
-     * {@link #STATE_ON},
-     * {@link #STATE_TURNING_OFF},
-     * @hide
-     */
-    public static final String EXTRA_ALWAYS_ON_STATE =
-            "android.nfc.extra.ALWAYS_ON_STATE";
-
-    /** @hide */
     public static final int HANDOVER_TRANSFER_STATUS_SUCCESS = 0;
     /** @hide */
     public static final int HANDOVER_TRANSFER_STATUS_FAILURE = 1;
@@ -430,6 +418,22 @@
     }
 
     /**
+     * A listener to be invoked when NFC controller always on state changes.
+     * <p>Register your {@code ControllerAlwaysOnListener} implementation with {@link
+     * NfcAdapter#registerControllerAlwaysOnListener} and disable it with {@link
+     * NfcAdapter#unregisterControllerAlwaysOnListener}.
+     * @see #registerControllerAlwaysOnListener
+     * @hide
+     */
+    @SystemApi
+    public interface ControllerAlwaysOnListener {
+        /**
+         * Called on NFC controller always on state changes
+         */
+        void onControllerAlwaysOnChanged(boolean isEnabled);
+    }
+
+    /**
      * A callback to be invoked when the system successfully delivers your {@link NdefMessage}
      * to another device.
      * @see #setOnNdefPushCompleteCallback
@@ -744,6 +748,7 @@
         mNfcUnlockHandlers = new HashMap<NfcUnlockHandler, INfcUnlockHandler>();
         mTagRemovedListener = null;
         mLock = new Object();
+        mControllerAlwaysOnListener = new NfcControllerAlwaysOnListener(getService());
     }
 
     /**
@@ -2239,14 +2244,16 @@
     /**
      * Sets NFC controller always on feature.
      * <p>This API is for the NFCC internal state management. It allows to discriminate
-     * the controller function from the NFC function by keeping the NFC Controller on without
+     * the controller function from the NFC function by keeping the NFC controller on without
      * any NFC RF enabled if necessary.
-     * <p>This call is asynchronous. Listen for {@link #ACTION_ALWAYS_ON_STATE_CHANGED}
-     * broadcasts to find out when the operation is complete.
-     * <p>If this returns true, then either NFCC is already on, or
-     * a {@link #ACTION_ALWAYS_ON_STATE_CHANGED} broadcast will be sent to indicate
-     * a state transition.
-     * If this returns false, then there is some problem that prevents an attempt to turn NFCC on.
+     * <p>This call is asynchronous. Register a listener {@link #ControllerAlwaysOnListener}
+     * by {@link #registerControllerAlwaysOnListener} to find out when the operation is
+     * complete.
+     * <p>If this returns true, then either NFCC always on state has been set based on the value,
+     * or a {@link ControllerAlwaysOnListener#onControllerAlwaysOnChanged(boolean)} will be invoked
+     * to indicate the state change.
+     * If this returns false, then there is some problem that prevents an attempt to turn NFCC
+     * always on.
      * @param value if true the NFCC will be kept on (with no RF enabled if NFC adapter is
      * disabled), if false the NFCC will follow completely the Nfc adapter state.
      * @throws UnsupportedOperationException if FEATURE_NFC is unavailable.
@@ -2284,7 +2291,6 @@
      * @throws UnsupportedOperationException if FEATURE_NFC is unavailable.
      * @hide
      */
-
     @SystemApi
     @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON)
     public boolean isControllerAlwaysOn() {
@@ -2313,7 +2319,6 @@
      * @throws UnsupportedOperationException if FEATURE_NFC is unavailable.
      * @hide
      */
-
     @SystemApi
     @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON)
     public boolean isControllerAlwaysOnSupported() {
@@ -2337,4 +2342,39 @@
             return false;
         }
     }
+
+    /**
+     * Register a {@link ControllerAlwaysOnListener} to listen for NFC controller always on
+     * state changes
+     * <p>The provided listener will be invoked by the given {@link Executor}.
+     *
+     * @param executor an {@link Executor} to execute given listener
+     * @param listener user implementation of the {@link ControllerAlwaysOnListener}
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON)
+    public void registerControllerAlwaysOnListener(
+            @NonNull @CallbackExecutor Executor executor,
+            @NonNull ControllerAlwaysOnListener listener) {
+        mControllerAlwaysOnListener.register(executor, listener);
+    }
+
+    /**
+     * Unregister the specified {@link ControllerAlwaysOnListener}
+     * <p>The same {@link ControllerAlwaysOnListener} object used when calling
+     * {@link #registerControllerAlwaysOnListener(Executor, ControllerAlwaysOnListener)}
+     * must be used.
+     *
+     * <p>Listeners are automatically unregistered when application process goes away
+     *
+     * @param listener user implementation of the {@link ControllerAlwaysOnListener}
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON)
+    public void unregisterControllerAlwaysOnListener(
+            @NonNull ControllerAlwaysOnListener listener) {
+        mControllerAlwaysOnListener.unregister(listener);
+    }
 }
diff --git a/core/java/android/nfc/NfcControllerAlwaysOnListener.java b/core/java/android/nfc/NfcControllerAlwaysOnListener.java
new file mode 100644
index 0000000..96707bb
--- /dev/null
+++ b/core/java/android/nfc/NfcControllerAlwaysOnListener.java
@@ -0,0 +1,120 @@
+/*
+ * Copyright 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.nfc;
+
+import android.annotation.NonNull;
+import android.nfc.NfcAdapter.ControllerAlwaysOnListener;
+import android.os.Binder;
+import android.os.RemoteException;
+import android.util.Log;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.Executor;
+
+/**
+ * @hide
+ */
+public class NfcControllerAlwaysOnListener extends INfcControllerAlwaysOnListener.Stub {
+    private static final String TAG = NfcControllerAlwaysOnListener.class.getSimpleName();
+
+    private final INfcAdapter mAdapter;
+
+    private final Map<ControllerAlwaysOnListener, Executor> mListenerMap = new HashMap<>();
+
+    private boolean mCurrentState = false;
+    private boolean mIsRegistered = false;
+
+    public NfcControllerAlwaysOnListener(@NonNull INfcAdapter adapter) {
+        mAdapter = adapter;
+    }
+
+    /**
+     * Register a {@link ControllerAlwaysOnListener} with this
+     * {@link NfcControllerAlwaysOnListener}
+     *
+     * @param executor an {@link Executor} to execute given listener
+     * @param listener user implementation of the {@link ControllerAlwaysOnListener}
+     */
+    public void register(@NonNull Executor executor,
+            @NonNull ControllerAlwaysOnListener listener) {
+        synchronized (this) {
+            if (mListenerMap.containsKey(listener)) {
+                return;
+            }
+
+            mListenerMap.put(listener, executor);
+            if (!mIsRegistered) {
+                try {
+                    mAdapter.registerControllerAlwaysOnListener(this);
+                    mIsRegistered = true;
+                } catch (RemoteException e) {
+                    Log.w(TAG, "Failed to register");
+                }
+            }
+        }
+    }
+
+    /**
+     * Unregister the specified {@link ControllerAlwaysOnListener}
+     *
+     * @param listener user implementation of the {@link ControllerAlwaysOnListener}
+     */
+    public void unregister(@NonNull ControllerAlwaysOnListener listener) {
+        synchronized (this) {
+            if (!mListenerMap.containsKey(listener)) {
+                return;
+            }
+
+            mListenerMap.remove(listener);
+
+            if (mListenerMap.isEmpty() && mIsRegistered) {
+                try {
+                    mAdapter.unregisterControllerAlwaysOnListener(this);
+                } catch (RemoteException e) {
+                    Log.w(TAG, "Failed to unregister");
+                }
+                mIsRegistered = false;
+            }
+        }
+    }
+
+    private void sendCurrentState(@NonNull ControllerAlwaysOnListener listener) {
+        synchronized (this) {
+            Executor executor = mListenerMap.get(listener);
+
+            final long identity = Binder.clearCallingIdentity();
+            try {
+                executor.execute(() -> listener.onControllerAlwaysOnChanged(
+                        mCurrentState));
+            } finally {
+                Binder.restoreCallingIdentity(identity);
+            }
+        }
+    }
+
+    @Override
+    public void onControllerAlwaysOnChanged(boolean isEnabled) {
+        synchronized (this) {
+            mCurrentState = isEnabled;
+            for (ControllerAlwaysOnListener cb : mListenerMap.keySet()) {
+                sendCurrentState(cb);
+            }
+        }
+    }
+}
+
diff --git a/core/java/android/nfc/TEST_MAPPING b/core/java/android/nfc/TEST_MAPPING
new file mode 100644
index 0000000..71ad687
--- /dev/null
+++ b/core/java/android/nfc/TEST_MAPPING
@@ -0,0 +1,7 @@
+{
+  "presubmit": [
+    {
+      "name": "NfcManagerTests"
+    }
+  ]
+}
diff --git a/core/java/android/os/BatteryStatsManager.java b/core/java/android/os/BatteryStatsManager.java
index 3f4a218..f5172cf 100644
--- a/core/java/android/os/BatteryStatsManager.java
+++ b/core/java/android/os/BatteryStatsManager.java
@@ -386,10 +386,9 @@
      * @param uid Uid of this event. For the active state it represents the uid that was responsible
      *            for waking the radio, or -1 if the system was responsible for waking the radio.
      *            For inactive state, the UID should always be -1.
-     * @throws RuntimeException if there are binder remote-invocation errors.
      */
     @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS)
-    public void reportMobileRadioPowerState(boolean isActive, int uid) throws RuntimeException {
+    public void reportMobileRadioPowerState(boolean isActive, int uid) {
         try {
             mBatteryStats.noteMobileRadioPowerState(getDataConnectionPowerState(isActive),
                     SystemClock.elapsedRealtimeNanos(), uid);
@@ -405,10 +404,9 @@
      * @param uid Uid of this event. For the active state it represents the uid that was responsible
      *            for waking the radio, or -1 if the system was responsible for waking the radio.
      *            For inactive state, the UID should always be -1.
-     * @throws RuntimeException if there are binder remote-invocation errors.
      */
     @RequiresPermission(android.Manifest.permission.UPDATE_DEVICE_STATS)
-    public void reportWifiRadioPowerState(boolean isActive, int uid) throws RuntimeException {
+    public void reportWifiRadioPowerState(boolean isActive, int uid) {
         try {
             mBatteryStats.noteWifiRadioPowerState(getDataConnectionPowerState(isActive),
                     SystemClock.elapsedRealtimeNanos(), uid);
diff --git a/core/java/android/os/Build.java b/core/java/android/os/Build.java
index 03caafd..e47ffcc 100755
--- a/core/java/android/os/Build.java
+++ b/core/java/android/os/Build.java
@@ -1309,10 +1309,25 @@
      * Debuggable builds allow users to gain root access via local shell, attach debuggers to any
      * application regardless of whether they have the "debuggable" attribute set, or downgrade
      * selinux into "permissive" mode in particular.
+     * @hide
      */
     public static final boolean IS_DEBUGGABLE =
             SystemProperties.getInt("ro.debuggable", 0) == 1;
 
+    /**
+     * Returns true if the device is running a debuggable build such as "userdebug" or "eng".
+     *
+     * Debuggable builds allow users to gain root access via local shell, attach debuggers to any
+     * application regardless of whether they have the "debuggable" attribute set, or downgrade
+     * selinux into "permissive" mode in particular.
+     * @hide
+     */
+    @TestApi
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+    public static boolean isDebuggable() {
+        return IS_DEBUGGABLE;
+    }
+
     /** {@hide} */
     public static final boolean IS_ENG = "eng".equals(TYPE);
     /** {@hide} */
diff --git a/core/java/android/os/CountDownTimer.java b/core/java/android/os/CountDownTimer.java
index c7bf0fd..51faa85 100644
--- a/core/java/android/os/CountDownTimer.java
+++ b/core/java/android/os/CountDownTimer.java
@@ -22,7 +22,22 @@
  *
  * Example of showing a 30 second countdown in a text field:
  *
- * <pre class="prettyprint">
+ * <div>
+ * <div class="ds-selector-tabs"><section><h3 id="kotlin">Kotlin</h3>
+ * <pre class="prettyprint lang-kotlin">
+ * object : CountDownTimer(30000, 1000) {
+ *
+ *     override fun onTick(millisUntilFinished: Long) {
+ *         mTextField.setText("seconds remaining: " + millisUntilFinished / 1000)
+ *     }
+ *
+ *     override fun onFinish() {
+ *         mTextField.setText("done!")
+ *     }
+ * }.start()
+ * </pre>
+ * </section><section><h3 id="java">Java</h3>
+ * <pre class="prettyprint lang-java">
  * new CountDownTimer(30000, 1000) {
  *
  *     public void onTick(long millisUntilFinished) {
@@ -32,8 +47,8 @@
  *     public void onFinish() {
  *         mTextField.setText("done!");
  *     }
- *  }.start();
- * </pre>
+ * }.start();
+ * </pre></section></div></div>
  *
  * The calls to {@link #onTick(long)} are synchronized to this object so that
  * one call to {@link #onTick(long)} won't ever occur before the previous
diff --git a/core/java/android/os/Debug.java b/core/java/android/os/Debug.java
index 903bea3..1e60f74 100644
--- a/core/java/android/os/Debug.java
+++ b/core/java/android/os/Debug.java
@@ -623,7 +623,7 @@
        *         </tr>
        *         <tr>
        *             <td>summary.total-pss</td>
-       *             <td>Total PPS memory usage in kB.</td>
+       *             <td>Total PSS memory usage in kB.</td>
        *             <td>{@code 1442}</td>
        *             <td>23</td>
        *         </tr>
diff --git a/core/java/android/os/IRecoverySystem.aidl b/core/java/android/os/IRecoverySystem.aidl
index 2052883..9368b68 100644
--- a/core/java/android/os/IRecoverySystem.aidl
+++ b/core/java/android/os/IRecoverySystem.aidl
@@ -30,6 +30,6 @@
     boolean requestLskf(in String packageName, in IntentSender sender);
     boolean clearLskf(in String packageName);
     boolean isLskfCaptured(in String packageName);
-    boolean rebootWithLskfAssumeSlotSwitch(in String packageName, in String reason);
-    boolean rebootWithLskf(in String packageName, in String reason, in boolean slotSwitch);
+    int rebootWithLskfAssumeSlotSwitch(in String packageName, in String reason);
+    int rebootWithLskf(in String packageName, in String reason, in boolean slotSwitch);
 }
diff --git a/core/java/android/os/Parcelable.java b/core/java/android/os/Parcelable.java
index 7a624e1..a537c98 100644
--- a/core/java/android/os/Parcelable.java
+++ b/core/java/android/os/Parcelable.java
@@ -27,10 +27,39 @@
  * and restored from a {@link Parcel}.  Classes implementing the Parcelable
  * interface must also have a non-null static field called <code>CREATOR</code>
  * of a type that implements the {@link Parcelable.Creator} interface.
- * 
+ *
  * <p>A typical implementation of Parcelable is:</p>
- * 
- * <pre>
+ *
+ * <div>
+ * <div class="ds-selector-tabs"><section><h3 id="kotlin">Kotlin</h3>
+ * <pre class="prettyprint lang-kotlin">
+ * class MyParcelable private constructor(`in`: Parcel) : Parcelable {
+ *     private val mData: Int = `in`.readInt()
+ *
+ *     override fun describeContents(): Int {
+ *         return 0
+ *     }
+ *
+ *     override fun writeToParcel(out: Parcel, flags: Int) {
+ *         out.writeInt(mData)
+ *     }
+ *
+ *     companion object {
+ *         val CREATOR: Parcelable.Creator&lt;MyParcelable?&gt;
+ *                 = object : Parcelable.Creator&lt;MyParcelable?&gt; {
+ *             override fun createFromParcel(`in`: Parcel): MyParcelable? {
+ *                 return MyParcelable(`in`)
+ *             }
+ *
+ *             override fun newArray(size: Int): Array&lt;MyParcelable?&gt; {
+ *                 return arrayOfNulls(size)
+ *             }
+ *         }
+ *     }
+ * }
+ * </pre>
+ * </section><section><h3 id="java">Java</h3>
+ * <pre class="prettyprint lang-java">
  * public class MyParcelable implements Parcelable {
  *     private int mData;
  *
@@ -52,11 +81,11 @@
  *             return new MyParcelable[size];
  *         }
  *     };
- *     
+ *
  *     private MyParcelable(Parcel in) {
  *         mData = in.readInt();
  *     }
- * }</pre>
+ * }</pre></section></div></div>
  */
 public interface Parcelable {
     /** @hide */
diff --git a/core/java/android/os/RecoverySystem.java b/core/java/android/os/RecoverySystem.java
index 43184ea..b474d7c 100644
--- a/core/java/android/os/RecoverySystem.java
+++ b/core/java/android/os/RecoverySystem.java
@@ -20,6 +20,7 @@
 
 import static java.nio.charset.StandardCharsets.UTF_8;
 
+import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
@@ -155,6 +156,66 @@
     private final IRecoverySystem mService;
 
     /**
+     * The error codes for reboots initiated by resume on reboot clients.
+     *  @hide
+     */
+    @IntDef(prefix = { "RESUME_ON_REBOOT_REBOOT_ERROR_" }, value = {
+            RESUME_ON_REBOOT_REBOOT_ERROR_NONE,
+            RESUME_ON_REBOOT_REBOOT_ERROR_UNSPECIFIED,
+            RESUME_ON_REBOOT_REBOOT_ERROR_INVALID_PACKAGE_NAME,
+            RESUME_ON_REBOOT_REBOOT_ERROR_LSKF_NOT_CAPTURED,
+            RESUME_ON_REBOOT_REBOOT_ERROR_SLOT_MISMATCH,
+            RESUME_ON_REBOOT_REBOOT_ERROR_PROVIDER_PREPARATION_FAILURE})
+    public @interface ResumeOnRebootRebootErrorCode {}
+
+    /**
+     * The preparation of resume on reboot succeeds.
+     *
+     * <p> Don't expose it because a successful reboot should just reboot the device.
+     *  @hide
+     */
+    public static final int RESUME_ON_REBOOT_REBOOT_ERROR_NONE = 0;
+
+    /**
+     * The resume on reboot fails due to an unknown reason.
+     *  @hide
+     */
+    @SystemApi
+    public static final int RESUME_ON_REBOOT_REBOOT_ERROR_UNSPECIFIED = 1000;
+
+    /**
+     * The resume on reboot fails because the package name of the client is invalid, e.g. null
+     * packageName, name contains invalid characters, etc.
+     *  @hide
+     */
+    @SystemApi
+    public static final int RESUME_ON_REBOOT_REBOOT_ERROR_INVALID_PACKAGE_NAME = 2000;
+
+    /**
+     * The resume on reboot fails because the Lock Screen Knowledge Factor hasn't been captured.
+     * This error is also reported if the client attempts to reboot without preparing RoR.
+     *  @hide
+     */
+    @SystemApi
+    public static final int RESUME_ON_REBOOT_REBOOT_ERROR_LSKF_NOT_CAPTURED = 3000;
+
+    /**
+     * The resume on reboot fails because the client expects a different boot slot for the next boot
+     * on A/B devices.
+     *  @hide
+     */
+    @SystemApi
+    public static final int RESUME_ON_REBOOT_REBOOT_ERROR_SLOT_MISMATCH = 4000;
+
+    /**
+     * The resume on reboot fails because the resume on reboot provider, e.g. HAL / server based,
+     * fails to arm/store the escrow key.
+     *  @hide
+     */
+    @SystemApi
+    public static final int RESUME_ON_REBOOT_REBOOT_ERROR_PROVIDER_PREPARATION_FAILURE = 5000;
+
+    /**
      * Interface definition for a callback to be invoked regularly as
      * verification proceeds.
      */
@@ -723,7 +784,8 @@
         }
         RecoverySystem rs = (RecoverySystem) context.getSystemService(Context.RECOVERY_SERVICE);
         // OTA is the sole user, who expects a slot switch.
-        if (!rs.rebootWithLskfAssumeSlotSwitch(context.getPackageName(), reason)) {
+        if (rs.rebootWithLskfAssumeSlotSwitch(context.getPackageName(), reason)
+                != RESUME_ON_REBOOT_REBOOT_ERROR_NONE) {
             throw new IOException("system not prepared to apply update");
         }
     }
@@ -752,19 +814,19 @@
      * @param context the Context to use.
      * @param reason the reboot reason to give to the {@link PowerManager}
      * @param slotSwitch true if the caller expects the slot to be switched on A/B devices.
-     * @throws IOException if the reboot couldn't proceed because the device wasn't ready for an
-     *               unattended reboot.
+     *
+     * @return 0 on success, and a non-zero error code if the reboot couldn't proceed because the
+     *         device wasn't ready for an unattended reboot.
+     * @throws IOException on remote exceptions from the RecoverySystemService
      * @hide
      */
     @SystemApi
     @RequiresPermission(anyOf = {android.Manifest.permission.RECOVERY,
             android.Manifest.permission.REBOOT})
-    public static void rebootAndApply(@NonNull Context context,
+    public static @ResumeOnRebootRebootErrorCode int rebootAndApply(@NonNull Context context,
             @NonNull String reason, boolean slotSwitch) throws IOException {
         RecoverySystem rs = context.getSystemService(RecoverySystem.class);
-        if (!rs.rebootWithLskf(context.getPackageName(), reason, slotSwitch)) {
-            throw new IOException("system not prepared to apply update");
-        }
+        return rs.rebootWithLskf(context.getPackageName(), reason, slotSwitch);
     }
 
     /**
@@ -1399,8 +1461,8 @@
      * Calls the recovery system service to reboot and apply update.
      *
      */
-    private boolean rebootWithLskf(String packageName, String reason, boolean slotSwitch)
-            throws IOException {
+    private @ResumeOnRebootRebootErrorCode int rebootWithLskf(String packageName, String reason,
+            boolean slotSwitch) throws IOException {
         try {
             return mService.rebootWithLskf(packageName, reason, slotSwitch);
         } catch (RemoteException e) {
@@ -1414,8 +1476,8 @@
      * expects a slot switch for A/B devices.
      *
      */
-    private boolean rebootWithLskfAssumeSlotSwitch(String packageName, String reason)
-            throws IOException {
+    private @ResumeOnRebootRebootErrorCode int rebootWithLskfAssumeSlotSwitch(String packageName,
+            String reason) throws IOException {
         try {
             return mService.rebootWithLskfAssumeSlotSwitch(packageName, reason);
         } catch (RemoteException e) {
diff --git a/core/java/android/os/UserHandle.java b/core/java/android/os/UserHandle.java
index 7b62e66..d065d7a 100644
--- a/core/java/android/os/UserHandle.java
+++ b/core/java/android/os/UserHandle.java
@@ -303,16 +303,15 @@
     }
 
     /**
-     * Returns the uid that is composed from the userHandle and the appId.
+     * Returns the uid representing the given appId for this UserHandle.
      *
-     * @param userHandle the UserHandle to compose the uid
      * @param appId the AppId to compose the uid
-     * @return the uid that is composed from the userHandle and the appId
+     * @return the uid representing the given appId for this UserHandle
      * @hide
      */
     @SystemApi
-    public static int getUid(@NonNull UserHandle userHandle, @AppIdInt int appId) {
-        return getUid(userHandle.getIdentifier(), appId);
+    public int getUid(@AppIdInt int appId) {
+        return getUid(getIdentifier(), appId);
     }
 
     /**
diff --git a/core/java/android/provider/SimPhonebookContract.java b/core/java/android/provider/SimPhonebookContract.java
index 030b863..fb89eb0 100644
--- a/core/java/android/provider/SimPhonebookContract.java
+++ b/core/java/android/provider/SimPhonebookContract.java
@@ -17,13 +17,14 @@
 package android.provider;
 
 import static android.provider.SimPhonebookContract.ElementaryFiles.EF_ADN;
-import static android.provider.SimPhonebookContract.ElementaryFiles.EF_ADN_PATH_SEGMENT;
 import static android.provider.SimPhonebookContract.ElementaryFiles.EF_FDN;
-import static android.provider.SimPhonebookContract.ElementaryFiles.EF_FDN_PATH_SEGMENT;
 import static android.provider.SimPhonebookContract.ElementaryFiles.EF_SDN;
-import static android.provider.SimPhonebookContract.ElementaryFiles.EF_SDN_PATH_SEGMENT;
+import static android.provider.SimPhonebookContract.ElementaryFiles.PATH_SEGMENT_EF_ADN;
+import static android.provider.SimPhonebookContract.ElementaryFiles.PATH_SEGMENT_EF_FDN;
+import static android.provider.SimPhonebookContract.ElementaryFiles.PATH_SEGMENT_EF_SDN;
 
 import android.annotation.IntDef;
+import android.annotation.IntRange;
 import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.WorkerThread;
@@ -78,11 +79,11 @@
     public static String getEfUriPath(@ElementaryFiles.EfType int efType) {
         switch (efType) {
             case EF_ADN:
-                return EF_ADN_PATH_SEGMENT;
+                return PATH_SEGMENT_EF_ADN;
             case EF_FDN:
-                return EF_FDN_PATH_SEGMENT;
+                return PATH_SEGMENT_EF_FDN;
             case EF_SDN:
-                return EF_SDN_PATH_SEGMENT;
+                return PATH_SEGMENT_EF_SDN;
             default:
                 throw new IllegalArgumentException("Unsupported EfType " + efType);
         }
@@ -109,9 +110,9 @@
      * the phone number can contain at most {@link ElementaryFiles#PHONE_NUMBER_MAX_LENGTH}
      * characters. The {@link SimRecords#NAME} column can contain at most
      * {@link ElementaryFiles#NAME_MAX_LENGTH} bytes when it is encoded for storage on the SIM.
-     * Encoding is done internally and so the name should be provided unencoded but the number of
-     * bytes required to encode it will vary depending on the characters it contains. This length
-     * can be determined by calling
+     * Encoding is done internally and so the name should be provided to these provider APIs as a
+     * Java String but the number of bytes required to encode it for storage will vary depending on
+     * the characters it contains. This length can be determined by calling
      * {@link SimRecords#getEncodedNameLength(ContentResolver, String)}.
      * </p>
      * <h3>Operations </h3>
@@ -308,7 +309,8 @@
          */
         @NonNull
         public static Uri getItemUri(
-                int subscriptionId, @ElementaryFiles.EfType int efType, int recordNumber) {
+                int subscriptionId, @ElementaryFiles.EfType int efType,
+                @IntRange(from = 1) int recordNumber) {
             // Elementary file record indices are 1-based.
             Preconditions.checkArgument(recordNumber > 0, "Invalid recordNumber");
 
@@ -332,6 +334,7 @@
          * @see ElementaryFiles#NAME_MAX_LENGTH
          */
         @WorkerThread
+        @IntRange(from = 0)
         public static int getEncodedNameLength(
                 @NonNull ContentResolver resolver, @NonNull String name) {
             Objects.requireNonNull(name);
@@ -442,12 +445,27 @@
          * methods operating on this Uri will throw UnsupportedOperationException
          */
         public static final int EF_SDN = 3;
-        /** @hide */
-        public static final String EF_ADN_PATH_SEGMENT = "adn";
-        /** @hide */
-        public static final String EF_FDN_PATH_SEGMENT = "fdn";
-        /** @hide */
-        public static final String EF_SDN_PATH_SEGMENT = "sdn";
+        /**
+         * The Uri path segment used to target the ADN elementary file for SimPhonebookProvider
+         * content operations.
+         *
+         * @hide
+         */
+        public static final String PATH_SEGMENT_EF_ADN = "adn";
+        /**
+         * The Uri path segment used to target the FDN elementary file for SimPhonebookProvider
+         * content operations.
+         *
+         * @hide
+         */
+        public static final String PATH_SEGMENT_EF_FDN = "fdn";
+        /**
+         * The Uri path segment used to target the SDN elementary file for SimPhonebookProvider
+         * content operations.
+         *
+         * @hide
+         */
+        public static final String PATH_SEGMENT_EF_SDN = "sdn";
         /** The MIME type of CONTENT_URI providing a directory of ADN-like elementary files. */
         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/sim-elementary-file";
         /** The MIME type of a CONTENT_URI subdirectory of a single ADN-like elementary file. */
diff --git a/core/java/android/security/ConfirmationPrompt.java b/core/java/android/security/ConfirmationPrompt.java
index 2329037..d8c44ad 100644
--- a/core/java/android/security/ConfirmationPrompt.java
+++ b/core/java/android/security/ConfirmationPrompt.java
@@ -21,7 +21,6 @@
 import android.content.Context;
 import android.provider.Settings;
 import android.provider.Settings.SettingNotFoundException;
-import android.security.keystore.AndroidKeyStoreProvider;
 import android.text.TextUtils;
 import android.util.Log;
 
@@ -106,32 +105,6 @@
     private void doCallback(int responseCode, byte[] dataThatWasConfirmed,
             ConfirmationCallback callback) {
         switch (responseCode) {
-            case KeyStore.CONFIRMATIONUI_OK:
-                callback.onConfirmed(dataThatWasConfirmed);
-                break;
-
-            case KeyStore.CONFIRMATIONUI_CANCELED:
-                callback.onDismissed();
-                break;
-
-            case KeyStore.CONFIRMATIONUI_ABORTED:
-                callback.onCanceled();
-                break;
-
-            case KeyStore.CONFIRMATIONUI_SYSTEM_ERROR:
-                callback.onError(new Exception("System error returned by ConfirmationUI."));
-                break;
-
-            default:
-                callback.onError(new Exception("Unexpected responseCode=" + responseCode
-                                + " from onConfirmtionPromptCompleted() callback."));
-                break;
-        }
-    }
-
-    private void doCallback2(int responseCode, byte[] dataThatWasConfirmed,
-            ConfirmationCallback callback) {
-        switch (responseCode) {
             case AndroidProtectedConfirmation.ERROR_OK:
                 callback.onConfirmed(dataThatWasConfirmed);
                 break;
@@ -155,31 +128,6 @@
         }
     }
 
-    private final android.os.IBinder mCallbackBinder =
-            new android.security.IConfirmationPromptCallback.Stub() {
-                @Override
-                public void onConfirmationPromptCompleted(
-                        int responseCode, final byte[] dataThatWasConfirmed)
-                        throws android.os.RemoteException {
-                    if (mCallback != null) {
-                        ConfirmationCallback callback = mCallback;
-                        Executor executor = mExecutor;
-                        mCallback = null;
-                        mExecutor = null;
-                        if (executor == null) {
-                            doCallback(responseCode, dataThatWasConfirmed, callback);
-                        } else {
-                            executor.execute(new Runnable() {
-                                    @Override
-                                    public void run() {
-                                        doCallback(responseCode, dataThatWasConfirmed, callback);
-                                    }
-                                });
-                        }
-                    }
-                }
-            };
-
     private final android.security.apc.IConfirmationCallback mConfirmationCallback =
             new android.security.apc.IConfirmationCallback.Stub() {
                 @Override
@@ -191,11 +139,11 @@
                         mCallback = null;
                         mExecutor = null;
                         if (executor == null) {
-                            doCallback2(result, dataThatWasConfirmed, callback);
+                            doCallback(result, dataThatWasConfirmed, callback);
                         } else {
                             executor.execute(new Runnable() {
                                 @Override public void run() {
-                                    doCallback2(result, dataThatWasConfirmed, callback);
+                                    doCallback(result, dataThatWasConfirmed, callback);
                                 }
                             });
                         }
@@ -266,29 +214,7 @@
         mExtraData = extraData;
     }
 
-    private static final int UI_OPTION_ACCESSIBILITY_INVERTED_FLAG = 1 << 0;
-    private static final int UI_OPTION_ACCESSIBILITY_MAGNIFIED_FLAG = 1 << 1;
-
     private int getUiOptionsAsFlags() {
-        if (AndroidKeyStoreProvider.isKeystore2Enabled()) {
-            return getUiOptionsAsFlags2();
-        }
-        int uiOptionsAsFlags = 0;
-        ContentResolver contentResolver = mContext.getContentResolver();
-        int inversionEnabled = Settings.Secure.getInt(contentResolver,
-                Settings.Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED, 0);
-        if (inversionEnabled == 1) {
-            uiOptionsAsFlags |= UI_OPTION_ACCESSIBILITY_INVERTED_FLAG;
-        }
-        float fontScale = Settings.System.getFloat(contentResolver,
-                Settings.System.FONT_SCALE, (float) 1.0);
-        if (fontScale > 1.0) {
-            uiOptionsAsFlags |= UI_OPTION_ACCESSIBILITY_MAGNIFIED_FLAG;
-        }
-        return uiOptionsAsFlags;
-    }
-
-    private int getUiOptionsAsFlags2() {
         int uiOptionsAsFlags = 0;
         ContentResolver contentResolver = mContext.getContentResolver();
         int inversionEnabled = Settings.Secure.getInt(contentResolver,
@@ -349,52 +275,26 @@
         mExecutor = executor;
 
         String locale = Locale.getDefault().toLanguageTag();
-        if (AndroidKeyStoreProvider.isKeystore2Enabled()) {
-            int uiOptionsAsFlags = getUiOptionsAsFlags2();
-            int responseCode = getService().presentConfirmationPrompt(
-                    mConfirmationCallback, mPromptText.toString(), mExtraData, locale,
-                    uiOptionsAsFlags);
-            switch (responseCode) {
-                case AndroidProtectedConfirmation.ERROR_OK:
-                    return;
+        int uiOptionsAsFlags = getUiOptionsAsFlags();
+        int responseCode = getService().presentConfirmationPrompt(
+                mConfirmationCallback, mPromptText.toString(), mExtraData, locale,
+                uiOptionsAsFlags);
+        switch (responseCode) {
+            case AndroidProtectedConfirmation.ERROR_OK:
+                return;
 
-                case AndroidProtectedConfirmation.ERROR_OPERATION_PENDING:
-                    throw new ConfirmationAlreadyPresentingException();
+            case AndroidProtectedConfirmation.ERROR_OPERATION_PENDING:
+                throw new ConfirmationAlreadyPresentingException();
 
-                case AndroidProtectedConfirmation.ERROR_UNIMPLEMENTED:
-                    throw new ConfirmationNotAvailableException();
+            case AndroidProtectedConfirmation.ERROR_UNIMPLEMENTED:
+                throw new ConfirmationNotAvailableException();
 
-                default:
-                    // Unexpected error code.
-                    Log.w(TAG,
-                            "Unexpected responseCode=" + responseCode
-                                    + " from presentConfirmationPrompt() call.");
-                    throw new IllegalArgumentException();
-            }
-        } else {
-            int uiOptionsAsFlags = getUiOptionsAsFlags();
-            int responseCode = mKeyStore.presentConfirmationPrompt(
-                    mCallbackBinder, mPromptText.toString(), mExtraData, locale, uiOptionsAsFlags);
-            switch (responseCode) {
-                case KeyStore.CONFIRMATIONUI_OK:
-                    return;
-
-                case KeyStore.CONFIRMATIONUI_OPERATION_PENDING:
-                    throw new ConfirmationAlreadyPresentingException();
-
-                case KeyStore.CONFIRMATIONUI_UNIMPLEMENTED:
-                    throw new ConfirmationNotAvailableException();
-
-                case KeyStore.CONFIRMATIONUI_UIERROR:
-                    throw new IllegalArgumentException();
-
-                default:
-                    // Unexpected error code.
-                    Log.w(TAG,
-                            "Unexpected responseCode=" + responseCode
-                                    + " from presentConfirmationPrompt() call.");
-                    throw new IllegalArgumentException();
-            }
+            default:
+                // Unexpected error code.
+                Log.w(TAG,
+                        "Unexpected responseCode=" + responseCode
+                                + " from presentConfirmationPrompt() call.");
+                throw new IllegalArgumentException();
         }
     }
 
@@ -408,33 +308,18 @@
      * @throws IllegalStateException if no prompt is currently being presented.
      */
     public void cancelPrompt() {
-        if (AndroidKeyStoreProvider.isKeystore2Enabled()) {
-            int responseCode =
-                    getService().cancelConfirmationPrompt(mConfirmationCallback);
-            if (responseCode == AndroidProtectedConfirmation.ERROR_OK) {
-                return;
-            } else if (responseCode == AndroidProtectedConfirmation.ERROR_OPERATION_PENDING) {
-                throw new IllegalStateException();
-            } else {
-                // Unexpected error code.
-                Log.w(TAG,
-                        "Unexpected responseCode=" + responseCode
-                                + " from cancelConfirmationPrompt() call.");
-                throw new IllegalStateException();
-            }
+        int responseCode =
+                getService().cancelConfirmationPrompt(mConfirmationCallback);
+        if (responseCode == AndroidProtectedConfirmation.ERROR_OK) {
+            return;
+        } else if (responseCode == AndroidProtectedConfirmation.ERROR_OPERATION_PENDING) {
+            throw new IllegalStateException();
         } else {
-            int responseCode = mKeyStore.cancelConfirmationPrompt(mCallbackBinder);
-            if (responseCode == KeyStore.CONFIRMATIONUI_OK) {
-                return;
-            } else if (responseCode == KeyStore.CONFIRMATIONUI_OPERATION_PENDING) {
-                throw new IllegalStateException();
-            } else {
-                // Unexpected error code.
-                Log.w(TAG,
-                        "Unexpected responseCode=" + responseCode
-                                + " from cancelConfirmationPrompt() call.");
-                throw new IllegalStateException();
-            }
+            // Unexpected error code.
+            Log.w(TAG,
+                    "Unexpected responseCode=" + responseCode
+                            + " from cancelConfirmationPrompt() call.");
+            throw new IllegalStateException();
         }
     }
 
@@ -448,9 +333,6 @@
         if (isAccessibilityServiceRunning(context)) {
             return false;
         }
-        if (AndroidKeyStoreProvider.isKeystore2Enabled()) {
-            return new AndroidProtectedConfirmation().isConfirmationPromptSupported();
-        }
-        return KeyStore.getInstance().isConfirmationPromptSupported();
+        return new AndroidProtectedConfirmation().isConfirmationPromptSupported();
     }
 }
diff --git a/core/java/android/security/keymaster/KeymasterCertificateChain.aidl b/core/java/android/security/keymaster/KeymasterCertificateChain.aidl
new file mode 100644
index 0000000..e01db7a
--- /dev/null
+++ b/core/java/android/security/keymaster/KeymasterCertificateChain.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.security.keymaster;
+
+parcelable KeymasterCertificateChain;
diff --git a/core/java/android/security/keystore/recovery/RecoveryController.java b/core/java/android/security/keystore/recovery/RecoveryController.java
index 1dc7f71..17ad5f1 100644
--- a/core/java/android/security/keystore/recovery/RecoveryController.java
+++ b/core/java/android/security/keystore/recovery/RecoveryController.java
@@ -712,18 +712,10 @@
      */
     @NonNull Key getKeyFromGrant(@NonNull String grantAlias)
             throws UnrecoverableKeyException, KeyPermanentlyInvalidatedException {
-        if (grantAlias.startsWith(APPLICATION_KEY_GRANT_PREFIX)) {
-            return AndroidKeyStoreProvider
-                    .loadAndroidKeyStoreSecretKeyFromKeystore(
-                            KeyStore2.getInstance(),
-                            getGrantDescriptor(grantAlias));
-        }
-        // TODO(b/171305545): remove KeyStore1 logic.
-        return android.security.keystore.AndroidKeyStoreProvider.loadAndroidKeyStoreKeyFromKeystore(
-            mKeyStore,
-            grantAlias,
-            KeyStore.UID_SELF);
-
+        return AndroidKeyStoreProvider
+                .loadAndroidKeyStoreSecretKeyFromKeystore(
+                        KeyStore2.getInstance(),
+                        getGrantDescriptor(grantAlias));
     }
 
     private static final String APPLICATION_KEY_GRANT_PREFIX = "recoverable_key:";
diff --git a/core/java/android/telephony/TelephonyRegistryManager.java b/core/java/android/telephony/TelephonyRegistryManager.java
index b111ec3..161d10a 100644
--- a/core/java/android/telephony/TelephonyRegistryManager.java
+++ b/core/java/android/telephony/TelephonyRegistryManager.java
@@ -796,13 +796,14 @@
     /**
      * Notify {@link PhysicalChannelConfig} has changed for a specific subscription.
      *
+     * @param slotIndex for which physical channel configs changed.
      * @param subId the subId
      * @param configs a list of {@link PhysicalChannelConfig}, the configs of physical channel.
      */
-    public void notifyPhysicalChannelConfigForSubscriber(
-            int subId, List<PhysicalChannelConfig> configs) {
+    public void notifyPhysicalChannelConfigForSubscriber(int slotIndex, int subId,
+            List<PhysicalChannelConfig> configs) {
         try {
-            sRegistry.notifyPhysicalChannelConfigForSubscriber(subId, configs);
+            sRegistry.notifyPhysicalChannelConfigForSubscriber(slotIndex, subId, configs);
         } catch (RemoteException ex) {
             // system server crash
         }
diff --git a/core/java/android/util/TimeUtils.java b/core/java/android/util/TimeUtils.java
index cd6585c..5fd0c33 100644
--- a/core/java/android/util/TimeUtils.java
+++ b/core/java/android/util/TimeUtils.java
@@ -30,6 +30,7 @@
 
 import java.io.PrintWriter;
 import java.text.SimpleDateFormat;
+import java.time.Instant;
 import java.time.LocalTime;
 import java.util.ArrayList;
 import java.util.Calendar;
@@ -43,11 +44,39 @@
 public class TimeUtils {
     /** @hide */ public TimeUtils() {}
     /** {@hide} */
-    private static SimpleDateFormat sLoggingFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+    private static final SimpleDateFormat sLoggingFormat =
+            new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 
     /** @hide */
     public static final SimpleDateFormat sDumpDateFormat =
             new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
+
+    /**
+     * This timestamp is used in TimeUtils methods and by the SettingsUI to filter time zones
+     * to only "effective" ones in a country. It is compared against the notUsedAfter metadata that
+     * Android records for some time zones.
+     *
+     * <p>What is notUsedAfter?</p>
+     * Android chooses to avoid making users choose between functionally identical time zones at the
+     * expense of not being able to represent local times in the past.
+     *
+     * notUsedAfter exists because some time zones can "merge" with other time zones after a given
+     * point in time (i.e. they change to have identical transitions, offsets, display names, etc.).
+     * From the notUsedAfter time, the zone will express the same local time as the one it merged
+     * with.
+     *
+     * <p>Why hardcoded?</p>
+     * Rather than using System.currentTimeMillis(), a timestamp known to be in the recent past is
+     * used to ensure consistent behavior across devices and time, and avoid assumptions that the
+     * system clock on a device is currently set correctly. The fixed value should be updated
+     * occasionally, but it doesn't have to be very often as effective time zones for a country
+     * don't change very often.
+     *
+     * @hide
+     */
+    public static final Instant MIN_USE_DATE_OF_TIMEZONE =
+            Instant.ofEpochMilli(1546300800000L); // 1/1/2019 00:00 UTC
+
     /**
      * Tries to return a time zone that would have had the specified offset
      * and DST value at the specified moment in the specified country.
@@ -109,7 +138,7 @@
 
         List<String> timeZoneIds = new ArrayList<>();
         for (TimeZoneMapping timeZoneMapping : countryTimeZones.getTimeZoneMappings()) {
-            if (timeZoneMapping.isShownInPicker()) {
+            if (timeZoneMapping.isShownInPickerAt(MIN_USE_DATE_OF_TIMEZONE)) {
                 timeZoneIds.add(timeZoneMapping.getTimeZoneId());
             }
         }
diff --git a/core/java/android/uwb/DistanceMeasurement.java b/core/java/android/uwb/DistanceMeasurement.java
index 2a9bbdf..9856553 100644
--- a/core/java/android/uwb/DistanceMeasurement.java
+++ b/core/java/android/uwb/DistanceMeasurement.java
@@ -60,6 +60,7 @@
      *
      * @return error of distance measurement in meters
      */
+    @FloatRange(from = 0.0)
     public double getErrorMeters() {
         return mErrorMeters;
     }
@@ -162,7 +163,7 @@
          * @throws IllegalArgumentException if error is negative or NaN
          */
         @NonNull
-        public Builder setErrorMeters(double errorMeters) {
+        public Builder setErrorMeters(@FloatRange(from = 0.0) double errorMeters) {
             if (Double.isNaN(errorMeters) || errorMeters < 0.0) {
                 throw new IllegalArgumentException(
                         "errorMeters must be >= 0.0 and not NaN: " + errorMeters);
@@ -178,7 +179,8 @@
          * @throws IllegalArgumentException if confidence level is not in the range of [0.0, 1.0]
          */
         @NonNull
-        public Builder setConfidenceLevel(double confidenceLevel) {
+        public Builder setConfidenceLevel(
+                @FloatRange(from = 0.0, to = 1.0) double confidenceLevel) {
             if (confidenceLevel < 0.0 || confidenceLevel > 1.0) {
                 throw new IllegalArgumentException(
                         "confidenceLevel must be in the range [0.0, 1.0]: " + confidenceLevel);
diff --git a/core/java/android/uwb/IUwbAdapter.aidl b/core/java/android/uwb/IUwbAdapter.aidl
index 4036892..30da248 100644
--- a/core/java/android/uwb/IUwbAdapter.aidl
+++ b/core/java/android/uwb/IUwbAdapter.aidl
@@ -160,14 +160,4 @@
    * closed.
    */
   const int RANGING_SESSION_CLOSE_THRESHOLD_MS = 3000; // Value TBD
-
-  /**
-   * Ranging scheduling time unit (RSTU) for High Rate Pulse (HRP) PHY
-   */
-  const int HIGH_RATE_PULSE_CHIRPS_PER_RSTU = 416;
-
-  /**
-   * Ranging scheduling time unit (RSTU) for Low Rate Pulse (LRP) PHY
-   */
-  const int LOW_RATE_PULSE_CHIRPS_PER_RSTU = 1;
 }
diff --git a/core/java/android/uwb/IUwbRangingCallbacks.aidl b/core/java/android/uwb/IUwbRangingCallbacks.aidl
index f71f3ff..f15debb 100644
--- a/core/java/android/uwb/IUwbRangingCallbacks.aidl
+++ b/core/java/android/uwb/IUwbRangingCallbacks.aidl
@@ -92,9 +92,13 @@
    * Called when the ranging session has been stopped
    *
    * @param sessionHandle the session the callback is being invoked for
+   * @param reason the reason the session was stopped
+   * @param parameters protocol specific parameters
    */
 
-  void onRangingStopped(in SessionHandle sessionHandle);
+  void onRangingStopped(in SessionHandle sessionHandle,
+                        RangingChangeReason reason,
+                        in PersistableBundle parameters);
 
   /**
    * Called when a ranging session fails to stop
diff --git a/core/java/android/uwb/RangingManager.java b/core/java/android/uwb/RangingManager.java
index 85f2c1c..e2c64a7 100644
--- a/core/java/android/uwb/RangingManager.java
+++ b/core/java/android/uwb/RangingManager.java
@@ -165,7 +165,8 @@
     }
 
     @Override
-    public void onRangingStopped(SessionHandle sessionHandle) {
+    public void onRangingStopped(SessionHandle sessionHandle, @RangingChangeReason int reason,
+            PersistableBundle params) {
         synchronized (this) {
             if (!hasSession(sessionHandle)) {
                 Log.w(TAG, "onRangingStopped - received unexpected SessionHandle: "
@@ -174,7 +175,7 @@
             }
 
             RangingSession session = mRangingSessionTable.get(sessionHandle);
-            session.onRangingStopped();
+            session.onRangingStopped(convertToReason(reason), params);
         }
     }
 
diff --git a/core/java/android/uwb/RangingSession.java b/core/java/android/uwb/RangingSession.java
index 52ec5bd..345b69d 100644
--- a/core/java/android/uwb/RangingSession.java
+++ b/core/java/android/uwb/RangingSession.java
@@ -191,8 +191,11 @@
 
         /**
          * Invoked when a request to stop the session succeeds
+         *
+         * @param reason reason for the session stop
+         * @param parameters protocol specific parameters related to the stop reason
          */
-        void onStopped();
+        void onStopped(@Reason int reason, @NonNull PersistableBundle parameters);
 
         /**
          * Invoked when a request to stop the session fails
@@ -434,14 +437,15 @@
     /**
      * @hide
      */
-    public void onRangingStopped() {
+    public void onRangingStopped(@Callback.Reason int reason,
+            @NonNull PersistableBundle params) {
         if (mState == State.CLOSED) {
             Log.w(TAG, "onRangingStopped invoked for a closed session");
             return;
         }
 
         mState = State.IDLE;
-        executeCallback(() -> mCallback.onStopped());
+        executeCallback(() -> mCallback.onStopped(reason, params));
     }
 
     /**
diff --git a/core/java/com/android/internal/app/IAppOpsCallback.aidl b/core/java/com/android/internal/app/IAppOpsCallback.aidl
index 15221b1..024ff66 100644
--- a/core/java/com/android/internal/app/IAppOpsCallback.aidl
+++ b/core/java/com/android/internal/app/IAppOpsCallback.aidl
@@ -17,7 +17,7 @@
 package com.android.internal.app;
 
 // This interface is also used by native code, so must
-// be kept in sync with frameworks/native/libs/binder/include/binder/IAppOpsCallback.h
+// be kept in sync with frameworks/native/libs/permission/include/binder/IAppOpsCallback.h
 oneway interface IAppOpsCallback {
     void opChanged(int op, int uid, String packageName);
 }
diff --git a/core/java/com/android/internal/app/IAppOpsService.aidl b/core/java/com/android/internal/app/IAppOpsService.aidl
index aca5926..eae650f 100644
--- a/core/java/com/android/internal/app/IAppOpsService.aidl
+++ b/core/java/com/android/internal/app/IAppOpsService.aidl
@@ -32,7 +32,7 @@
 
 interface IAppOpsService {
     // These methods are also called by native code, so must
-    // be kept in sync with frameworks/native/libs/binder/include/binder/IAppOpsService.h
+    // be kept in sync with frameworks/native/libs/permission/include/binder/IAppOpsService.h
     // and not be reordered
     int checkOperation(int code, int uid, String packageName);
     int noteOperation(int code, int uid, String packageName, @nullable String attributionTag,
diff --git a/core/java/com/android/internal/os/BINDER_OWNERS b/core/java/com/android/internal/os/BINDER_OWNERS
new file mode 100644
index 0000000..9f68a32
--- /dev/null
+++ b/core/java/com/android/internal/os/BINDER_OWNERS
@@ -0,0 +1,2 @@
+dplotnikov@google.com
+gaillard@google.com
diff --git a/core/java/com/android/internal/os/OWNERS b/core/java/com/android/internal/os/OWNERS
index 3f01ebb..ea3b3a7 100644
--- a/core/java/com/android/internal/os/OWNERS
+++ b/core/java/com/android/internal/os/OWNERS
@@ -1,6 +1,7 @@
 per-file *Power* = file:/services/core/java/com/android/server/power/OWNERS
 per-file *Zygote* = file:/ZYGOTE_OWNERS
 per-file *Cpu* = file:CPU_OWNERS
+per-file *Binder* = file:BINDER_OWNERS
 
 # BatteryStats
 per-file BatterySipper.java = file:/BATTERY_STATS_OWNERS
diff --git a/core/java/com/android/internal/os/ZygoteCommandBuffer.java b/core/java/com/android/internal/os/ZygoteCommandBuffer.java
index b61ae7a..83a68ca 100644
--- a/core/java/com/android/internal/os/ZygoteCommandBuffer.java
+++ b/core/java/com/android/internal/os/ZygoteCommandBuffer.java
@@ -176,7 +176,7 @@
 
     /*
      * Repeatedly fork children as above. It commonly does not return in the parent, but it may.
-     * @return true in the chaild, false in the parent if we encounter a command we couldn't handle.
+     * @return true in the child, false in the parent if we encounter a command we couldn't handle.
      */
     private static native boolean nativeForkRepeatedly(long /* NativeCommandBuffer* */ nbuffer,
                                                    int zygoteSocketRawFd,
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index 5fea76a..a541089 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -41,6 +41,7 @@
 import android.os.ZygoteProcess;
 import android.os.storage.StorageManager;
 import android.provider.DeviceConfig;
+import android.security.keystore2.AndroidKeyStoreProvider;
 import android.system.ErrnoException;
 import android.system.Os;
 import android.system.OsConstants;
@@ -222,10 +223,8 @@
         long startTime = SystemClock.uptimeMillis();
         Trace.traceBegin(
                 Trace.TRACE_TAG_DALVIK, "Starting installation of AndroidKeyStoreProvider");
-        // AndroidKeyStoreProvider.install() manipulates the list of JCA providers to insert
-        // preferred providers. Note this is not done via security.properties as the JCA providers
-        // are not on the classpath in the case of, for example, raw dalvikvm runtimes.
-        android.security.keystore2.AndroidKeyStoreProvider.install();
+
+        AndroidKeyStoreProvider.install();
         Log.i(TAG, "Installed AndroidKeyStoreProvider in "
                 + (SystemClock.uptimeMillis() - startTime) + "ms.");
         Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
diff --git a/core/java/com/android/internal/os/ZygoteServer.java b/core/java/com/android/internal/os/ZygoteServer.java
index f71b314..4d2266b 100644
--- a/core/java/com/android/internal/os/ZygoteServer.java
+++ b/core/java/com/android/internal/os/ZygoteServer.java
@@ -547,7 +547,7 @@
                         try {
                             ZygoteConnection connection = peers.get(pollIndex);
                             boolean multipleForksOK = !isUsapPoolEnabled()
-                                    && ZygoteHooks.indefiniteThreadSuspensionOK();
+                                    && ZygoteHooks.isIndefiniteThreadSuspensionSafe();
                             final Runnable command =
                                     connection.processCommand(this, multipleForksOK);
 
diff --git a/core/java/com/android/internal/telephony/ITelephonyRegistry.aidl b/core/java/com/android/internal/telephony/ITelephonyRegistry.aidl
index 965971d..7a3fd91 100644
--- a/core/java/com/android/internal/telephony/ITelephonyRegistry.aidl
+++ b/core/java/com/android/internal/telephony/ITelephonyRegistry.aidl
@@ -91,7 +91,7 @@
     void notifyRegistrationFailed(int slotIndex, int subId, in CellIdentity cellIdentity,
             String chosenPlmn, int domain, int causeCode, int additionalCauseCode);
     void notifyBarringInfoChanged(int slotIndex, int subId, in BarringInfo barringInfo);
-    void notifyPhysicalChannelConfigForSubscriber(in int subId,
+    void notifyPhysicalChannelConfigForSubscriber(in int phoneId, in int subId,
             in List<PhysicalChannelConfig> configs);
     void notifyDataEnabled(in int phoneId, int subId, boolean enabled, int reason);
     void notifyAllowedNetworkTypesChanged(in int phoneId, in int subId, in int reason, in long allowedNetworkType);
diff --git a/core/java/com/android/internal/util/ScreenshotHelper.java b/core/java/com/android/internal/util/ScreenshotHelper.java
index a23fc4b..7ee846e 100644
--- a/core/java/com/android/internal/util/ScreenshotHelper.java
+++ b/core/java/com/android/internal/util/ScreenshotHelper.java
@@ -1,12 +1,15 @@
 package com.android.internal.util;
 
+import static android.content.Intent.ACTION_USER_SWITCHED;
 import static android.view.WindowManager.ScreenshotSource.SCREENSHOT_OTHER;
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
+import android.content.IntentFilter;
 import android.content.ServiceConnection;
 import android.graphics.Insets;
 import android.graphics.Rect;
@@ -161,8 +164,21 @@
     private ServiceConnection mScreenshotConnection = null;
     private final Context mContext;
 
+    private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            synchronized (mScreenshotLock) {
+                if (ACTION_USER_SWITCHED.equals(intent.getAction())) {
+                    resetConnection();
+                }
+            }
+        }
+    };
+
     public ScreenshotHelper(Context context) {
         mContext = context;
+        IntentFilter filter = new IntentFilter(ACTION_USER_SWITCHED);
+        mContext.registerReceiver(mBroadcastReceiver, filter);
     }
 
     /**
@@ -279,9 +295,8 @@
             final Runnable mScreenshotTimeout = () -> {
                 synchronized (mScreenshotLock) {
                     if (mScreenshotConnection != null) {
-                        mContext.unbindService(mScreenshotConnection);
-                        mScreenshotConnection = null;
-                        mScreenshotService = null;
+                        Log.e(TAG, "Timed out before getting screenshot capture response");
+                        resetConnection();
                         notifyScreenshotError();
                     }
                 }
@@ -304,11 +319,7 @@
                             break;
                         case SCREENSHOT_MSG_PROCESS_COMPLETE:
                             synchronized (mScreenshotLock) {
-                                if (mScreenshotConnection != null) {
-                                    mContext.unbindService(mScreenshotConnection);
-                                    mScreenshotConnection = null;
-                                    mScreenshotService = null;
-                                }
+                                resetConnection();
                             }
                             break;
                     }
@@ -348,9 +359,7 @@
                     public void onServiceDisconnected(ComponentName name) {
                         synchronized (mScreenshotLock) {
                             if (mScreenshotConnection != null) {
-                                mContext.unbindService(mScreenshotConnection);
-                                mScreenshotConnection = null;
-                                mScreenshotService = null;
+                                resetConnection();
                                 // only log an error if we're still within the timeout period
                                 if (handler.hasCallbacks(mScreenshotTimeout)) {
                                     handler.removeCallbacks(mScreenshotTimeout);
@@ -383,6 +392,17 @@
     }
 
     /**
+     * Unbinds the current screenshot connection (if any).
+     */
+    private void resetConnection() {
+        if (mScreenshotConnection != null) {
+            mContext.unbindService(mScreenshotConnection);
+            mScreenshotConnection = null;
+            mScreenshotService = null;
+        }
+    }
+
+    /**
      * Notifies the screenshot service to show an error.
      */
     private void notifyScreenshotError() {
diff --git a/core/java/com/android/internal/widget/LockSettingsInternal.java b/core/java/com/android/internal/widget/LockSettingsInternal.java
index f5df3ab..940979d 100644
--- a/core/java/com/android/internal/widget/LockSettingsInternal.java
+++ b/core/java/com/android/internal/widget/LockSettingsInternal.java
@@ -16,15 +16,41 @@
 
 package com.android.internal.widget;
 
+import android.annotation.IntDef;
 import android.annotation.Nullable;
 import android.app.admin.PasswordMetrics;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 /**
  * LockSettingsService local system service interface.
  *
  * @hide Only for use within the system server.
  */
 public abstract class LockSettingsInternal {
+    /** ErrorCode for armRebootEscrow failures. **/
+    @IntDef(prefix = {"ARM_REBOOT_ERROR_"}, value = {
+            ARM_REBOOT_ERROR_NONE,
+            ARM_REBOOT_ERROR_UNSPECIFIED,
+            ARM_REBOOT_ERROR_ESCROW_NOT_READY,
+            ARM_REBOOT_ERROR_NO_PROVIDER,
+            ARM_REBOOT_ERROR_PROVIDER_MISMATCH,
+            ARM_REBOOT_ERROR_NO_ESCROW_KEY,
+            ARM_REBOOT_ERROR_KEYSTORE_FAILURE,
+            ARM_REBOOT_ERROR_STORE_ESCROW_KEY,
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface ArmRebootEscrowErrorCode {}
+
+    public static final int ARM_REBOOT_ERROR_NONE = 0;
+    public static final int ARM_REBOOT_ERROR_UNSPECIFIED = 1;
+    public static final int ARM_REBOOT_ERROR_ESCROW_NOT_READY = 2;
+    public static final int ARM_REBOOT_ERROR_NO_PROVIDER = 3;
+    public static final int ARM_REBOOT_ERROR_PROVIDER_MISMATCH = 4;
+    public static final int ARM_REBOOT_ERROR_NO_ESCROW_KEY = 5;
+    public static final int ARM_REBOOT_ERROR_KEYSTORE_FAILURE = 6;
+    public static final int ARM_REBOOT_ERROR_STORE_ESCROW_KEY = 7;
+    // TODO(b/183140900) split store escrow key errors into detailed ones.
 
     /**
      * Create an escrow token for the current user, which can later be used to unlock FBE
@@ -104,9 +130,9 @@
      * Should be called immediately before rebooting for an update. This depends on {@link
      * #prepareRebootEscrow()} having been called and the escrow completing.
      *
-     * @return true if the arming worked
+     * @return ARM_ERROR_NONE if the arming worked
      */
-    public abstract boolean armRebootEscrow();
+    public abstract @ArmRebootEscrowErrorCode int armRebootEscrow();
 
 
     /**
diff --git a/core/jni/AndroidRuntime.cpp b/core/jni/AndroidRuntime.cpp
index ed84434..855448b 100644
--- a/core/jni/AndroidRuntime.cpp
+++ b/core/jni/AndroidRuntime.cpp
@@ -50,6 +50,7 @@
 #include "jni.h"
 
 using namespace android;
+using android::base::GetBoolProperty;
 using android::base::GetProperty;
 
 extern int register_android_os_Binder(JNIEnv* env);
@@ -727,17 +728,7 @@
         ALOGI("Leaving lock profiling enabled");
     }
 
-    bool checkJni = false;
-    property_get("dalvik.vm.checkjni", propBuf, "");
-    if (strcmp(propBuf, "true") == 0) {
-        checkJni = true;
-    } else if (strcmp(propBuf, "false") != 0) {
-        /* property is neither true nor false; fall back on kernel parameter */
-        property_get("ro.kernel.android.checkjni", propBuf, "");
-        if (propBuf[0] == '1') {
-            checkJni = true;
-        }
-    }
+    const bool checkJni = GetBoolProperty("dalvik.vm.checkjni", false);
     ALOGV("CheckJNI is %s\n", checkJni ? "ON" : "OFF");
     if (checkJni) {
         /* extended JNI checking */
diff --git a/core/jni/com_android_internal_os_Zygote.cpp b/core/jni/com_android_internal_os_Zygote.cpp
index 836074f..6ac43bd3 100644
--- a/core/jni/com_android_internal_os_Zygote.cpp
+++ b/core/jni/com_android_internal_os_Zygote.cpp
@@ -1015,21 +1015,6 @@
   gUsapPoolCount = 0;
 }
 
-NO_PAC_FUNC
-static void PAuthKeyChange(JNIEnv* env) {
-#ifdef __aarch64__
-  unsigned long int hwcaps = getauxval(AT_HWCAP);
-  if (hwcaps & HWCAP_PACA) {
-    const unsigned long key_mask = PR_PAC_APIAKEY | PR_PAC_APIBKEY |
-                                   PR_PAC_APDAKEY | PR_PAC_APDBKEY | PR_PAC_APGAKEY;
-    if (prctl(PR_PAC_RESET_KEYS, key_mask, 0, 0, 0) != 0) {
-      ALOGE("Failed to change the PAC keys: %s", strerror(errno));
-      RuntimeAbort(env, __LINE__, "PAC key change failed.");
-    }
-  }
-#endif
-}
-
 // Create an app data directory over tmpfs overlayed CE / DE storage, and bind mount it
 // from the actual app data directory in data mirror.
 static bool createAndMountAppData(std::string_view package_name,
@@ -1980,7 +1965,6 @@
 }
 
 // Utility routine to fork a process from the zygote.
-NO_PAC_FUNC
 pid_t zygote::ForkCommon(JNIEnv* env, bool is_system_server,
                          const std::vector<int>& fds_to_close,
                          const std::vector<int>& fds_to_ignore,
@@ -2035,7 +2019,6 @@
     }
 
     // The child process.
-    PAuthKeyChange(env);
     PreApplicationInit();
 
     // Clean up any descriptors which must be closed immediately
@@ -2067,7 +2050,6 @@
   PreApplicationInit();
 }
 
-NO_PAC_FUNC
 static jint com_android_internal_os_Zygote_nativeForkAndSpecialize(
         JNIEnv* env, jclass, jint uid, jint gid, jintArray gids, jint runtime_flags,
         jobjectArray rlimits, jint mount_external, jstring se_info, jstring nice_name,
@@ -2117,7 +2099,6 @@
     return pid;
 }
 
-NO_PAC_FUNC
 static jint com_android_internal_os_Zygote_nativeForkSystemServer(
         JNIEnv* env, jclass, uid_t uid, gid_t gid, jintArray gids,
         jint runtime_flags, jobjectArray rlimits, jlong permitted_capabilities,
@@ -2189,7 +2170,6 @@
  * @param is_priority_fork  Controls the nice level assigned to the newly created process
  * @return child pid in the parent, 0 in the child
  */
-NO_PAC_FUNC
 static jint com_android_internal_os_Zygote_nativeForkApp(JNIEnv* env,
                                                          jclass,
                                                          jint read_pipe_fd,
@@ -2204,7 +2184,6 @@
                             args_known == JNI_TRUE, is_priority_fork == JNI_TRUE, true);
 }
 
-NO_PAC_FUNC
 int zygote::forkApp(JNIEnv* env,
                     int read_pipe_fd,
                     int write_pipe_fd,
diff --git a/core/jni/com_android_internal_os_Zygote.h b/core/jni/com_android_internal_os_Zygote.h
index d2da914..b87396c 100644
--- a/core/jni/com_android_internal_os_Zygote.h
+++ b/core/jni/com_android_internal_os_Zygote.h
@@ -20,18 +20,6 @@
 #define LOG_TAG "Zygote"
 #define ATRACE_TAG ATRACE_TAG_DALVIK
 
-/* Functions in the callchain during the fork shall not be protected with
-   Armv8.3-A Pointer Authentication, otherwise child will not be able to return. */
-#ifdef __ARM_FEATURE_PAC_DEFAULT
-#ifdef __ARM_FEATURE_BTI_DEFAULT
-#define NO_PAC_FUNC __attribute__((target("branch-protection=bti")))
-#else
-#define NO_PAC_FUNC __attribute__((target("branch-protection=none")))
-#endif /* __ARM_FEATURE_BTI_DEFAULT */
-#else /* !__ARM_FEATURE_PAC_DEFAULT */
-#define NO_PAC_FUNC
-#endif /* __ARM_FEATURE_PAC_DEFAULT */
-
 #include <jni.h>
 #include <vector>
 #include <android-base/stringprintf.h>
@@ -42,7 +30,6 @@
 namespace android {
 namespace zygote {
 
-NO_PAC_FUNC
 pid_t ForkCommon(JNIEnv* env,bool is_system_server,
                  const std::vector<int>& fds_to_close,
                  const std::vector<int>& fds_to_ignore,
@@ -57,7 +44,6 @@
  * communication is required. Is_priority_fork should be true if this is on the app startup
  * critical path. Purge specifies that unused pages should be purged before the fork.
  */
-NO_PAC_FUNC
 int forkApp(JNIEnv* env,
             int read_pipe_fd,
             int write_pipe_fd,
diff --git a/core/jni/com_android_internal_os_ZygoteCommandBuffer.cpp b/core/jni/com_android_internal_os_ZygoteCommandBuffer.cpp
index 011e8f8..24fef48 100644
--- a/core/jni/com_android_internal_os_ZygoteCommandBuffer.cpp
+++ b/core/jni/com_android_internal_os_ZygoteCommandBuffer.cpp
@@ -365,7 +365,6 @@
 // We only process fork commands if the peer uid matches expected_uid.
 // For every fork command after the first, we check that the requested uid is at
 // least minUid.
-NO_PAC_FUNC
 jboolean com_android_internal_os_ZygoteCommandBuffer_nativeForkRepeatedly(
             JNIEnv* env,
             jclass,
diff --git a/core/proto/android/internal/OWNERS b/core/proto/android/internal/OWNERS
new file mode 100644
index 0000000..24e24c2
--- /dev/null
+++ b/core/proto/android/internal/OWNERS
@@ -0,0 +1,2 @@
+# Binder
+per-file binder_latency.proto = file:/core/java/com/android/internal/os/BINDER_OWNERS
\ No newline at end of file
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 1f7695e..cc4e2bb 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -313,7 +313,6 @@
     <protected-broadcast android:name="android.se.omapi.action.SECURE_ELEMENT_STATE_CHANGED" />
 
     <protected-broadcast android:name="android.nfc.action.ADAPTER_STATE_CHANGED" />
-    <protected-broadcast android:name="android.nfc.action.ALWAYS_ON_STATE_CHANGED" />
     <protected-broadcast android:name="android.nfc.action.PREFERRED_PAYMENT_CHANGED" />
     <protected-broadcast android:name="android.nfc.action.TRANSACTION_DETECTED" />
     <protected-broadcast android:name="android.nfc.action.REQUIRE_UNLOCK_FOR_NFC" />
@@ -333,7 +332,7 @@
     <protected-broadcast android:name="android.nfc.handover.intent.action.HANDOVER_SEND_MULTIPLE" />
     <protected-broadcast android:name="com.android.nfc.handover.action.CANCEL_HANDOVER_TRANSFER" />
 
-    <protected-broadcast android:name="android.intent.action.CLEAR_DNS_CACHE" />
+    <protected-broadcast android:name="android.net.action.CLEAR_DNS_CACHE" />
     <protected-broadcast android:name="android.intent.action.PROXY_CHANGE" />
 
     <protected-broadcast android:name="android.os.UpdateLock.UPDATE_LOCK_CHANGED" />
diff --git a/core/res/res/values/attrs_manifest.xml b/core/res/res/values/attrs_manifest.xml
index 47dbd64..41cd371 100644
--- a/core/res/res/values/attrs_manifest.xml
+++ b/core/res/res/values/attrs_manifest.xml
@@ -1560,6 +1560,20 @@
        <enum name="always" value="1" />
     </attr>
 
+    <!-- Enable hardware memory tagging (ARM MTE) in this process.
+         When enabled, heap memory bugs like use-after-free and buffer overlow
+         are detected and result in an immediate ("sync" mode) or delayed ("async"
+         mode) crash instead of a silent memory corruption. Sync mode, while slower,
+         provides enhanced bug reports including stack traces at the time of allocation
+         and deallocation of memory, similar to AddressSanitizer.
+
+         See the <a href="https://community.arm.com/developer/ip-products/processors/b/processors-ip-blog/posts/enhancing-memory-safety">ARM announcement</a>
+         for more details.
+
+         <p>This attribute can be applied to a
+         {@link android.R.styleable#AndroidManifestProcess process} tag, or to an
+         {@link android.R.styleable#AndroidManifestApplication application} tag (to supply
+         a default setting for all application components). -->
     <attr name="memtagMode">
        <enum name="default" value="-1" />
        <enum name="off" value="0" />
@@ -1836,7 +1850,9 @@
 
         <attr name="memtagMode" />
 
-        <attr name="nativeHeapZeroInit" format="boolean" />
+        <!-- If {@code true} enables automatic zero initialization of all native heap
+             allocations. -->
+        <attr name="nativeHeapZeroInitialized" format="boolean" />
 
         <!-- @hide no longer used, kept to preserve padding -->
         <attr name="allowAutoRevokePermissionsExemption" format="boolean" />
@@ -2362,7 +2378,7 @@
         <attr name="process" />
         <attr name="gwpAsanMode" />
         <attr name="memtagMode" />
-        <attr name="nativeHeapZeroInit" />
+        <attr name="nativeHeapZeroInitialized" />
     </declare-styleable>
 
     <!-- The <code>deny-permission</code> tag specifies that a permission is to be denied
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index bfe7802..58eb93f 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -1834,7 +1834,7 @@
     <string name="config_systemGallery" translatable="false">com.android.gallery3d</string>
 
     <!-- The name of the package that will be allowed to change its components' label/icon. -->
-    <string name="config_overrideComponentUiPackage" translatable="false"></string>
+    <string name="config_overrideComponentUiPackage" translatable="false">com.android.stk</string>
 
     <!-- Enable/disable default bluetooth profiles:
         HSP_AG, ObexObjectPush, Audio, NAP -->
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index 0f846d3..6a4702b 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -3047,7 +3047,7 @@
     <!-- attribute definitions go here -->
     <public name="requireDeviceScreenOn" />
     <public name="memtagMode" />
-    <public name="nativeHeapZeroInit" />
+    <public name="nativeHeapZeroInitialized" />
   </public-group>
 
   <public-group type="drawable" first-id="0x010800b5">
diff --git a/core/tests/ConnectivityManagerTest/src/com/android/connectivitymanagertest/ConnectivityManagerTestBase.java b/core/tests/ConnectivityManagerTest/src/com/android/connectivitymanagertest/ConnectivityManagerTestBase.java
index b0c1f25..100eb99 100644
--- a/core/tests/ConnectivityManagerTest/src/com/android/connectivitymanagertest/ConnectivityManagerTestBase.java
+++ b/core/tests/ConnectivityManagerTest/src/com/android/connectivitymanagertest/ConnectivityManagerTestBase.java
@@ -76,6 +76,7 @@
     private Context mContext;
     protected List<ScanResult> mLastScanResult;
     protected Object mWifiScanResultLock = new Object();
+    public TetheringManager mTetheringManager;
 
     /* Control Wifi States */
     public WifiManager mWifiManager;
@@ -129,6 +130,7 @@
         mCm = (ConnectivityManager)mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
         // Get an instance of WifiManager
         mWifiManager =(WifiManager)mContext.getSystemService(Context.WIFI_SERVICE);
+        mTetheringManager = mContext.getSystemService(TetheringManager.class);
 
         // register a connectivity receiver for CONNECTIVITY_ACTION;
         mConnectivityReceiver = new ConnectivityReceiver();
@@ -216,13 +218,13 @@
      */
     protected boolean waitForTetherStateChange(long timeout) {
         long startTime = SystemClock.uptimeMillis();
-        String[] wifiRegexes = mCm.getTetherableWifiRegexs();
+        String[] wifiRegexes = mTetheringManager.getTetherableWifiRegexs();
         while (true) {
             if ((SystemClock.uptimeMillis() - startTime) > timeout) {
                 return false;
             }
-            String[] active = mCm.getTetheredIfaces();
-            String[] error = mCm.getTetheringErroredIfaces();
+            String[] active = mTetheringManager.getTetheredIfaces();
+            String[] error = mTetheringManager.getTetheringErroredIfaces();
             for (String iface: active) {
                 for (String regex: wifiRegexes) {
                     if (iface.matches(regex)) {
diff --git a/core/tests/ConnectivityManagerTest/src/com/android/connectivitymanagertest/WifiConfigurationHelper.java b/core/tests/ConnectivityManagerTest/src/com/android/connectivitymanagertest/WifiConfigurationHelper.java
index a296ca2..09ea34e 100644
--- a/core/tests/ConnectivityManagerTest/src/com/android/connectivitymanagertest/WifiConfigurationHelper.java
+++ b/core/tests/ConnectivityManagerTest/src/com/android/connectivitymanagertest/WifiConfigurationHelper.java
@@ -244,17 +244,19 @@
 
         IpConfiguration ipConfiguration = config.getIpConfiguration();
         if (jsonConfig.has("ip")) {
-            StaticIpConfiguration staticIpConfig = new StaticIpConfiguration();
-
             InetAddress ipAddress = getInetAddress(jsonConfig.getString("ip"));
             int prefixLength = getPrefixLength(jsonConfig.getInt("prefix_length"));
-            staticIpConfig.ipAddress = new LinkAddress(ipAddress, prefixLength);
-            staticIpConfig.gateway = getInetAddress(jsonConfig.getString("gateway"));
-            staticIpConfig.dnsServers.add(getInetAddress(jsonConfig.getString("dns1")));
-            staticIpConfig.dnsServers.add(getInetAddress(jsonConfig.getString("dns2")));
+
+            final StaticIpConfiguration.Builder builder = new StaticIpConfiguration.Builder();
+            builder.setIpAddress(new LinkAddress(ipAddress, prefixLength));
+            builder.setGateway(getInetAddress(jsonConfig.getString("gateway")));
+            final ArrayList<InetAddress> dnsServers = new ArrayList<>();
+            dnsServers.add(getInetAddress(jsonConfig.getString("dns1")));
+            dnsServers.add(getInetAddress(jsonConfig.getString("dns2")));
+            builder.setDnsServers(dnsServers);
+            ipConfiguration.setStaticIpConfiguration(builder.build());
 
             ipConfiguration.setIpAssignment(IpAssignment.STATIC);
-            ipConfiguration.setStaticIpConfiguration(staticIpConfig);
         } else {
             ipConfiguration.setIpAssignment(IpAssignment.DHCP);
         }
diff --git a/core/tests/coretests/Android.bp b/core/tests/coretests/Android.bp
index 510578e..5045e3b 100644
--- a/core/tests/coretests/Android.bp
+++ b/core/tests/coretests/Android.bp
@@ -61,7 +61,6 @@
         "org.apache.http.legacy",
         "android.test.base",
         "android.test.mock",
-        "framework-atb-backward-compatibility",
         "framework",
         "ext",
         "framework-res",
diff --git a/core/tests/coretests/src/android/app/admin/OWNERS b/core/tests/coretests/src/android/app/admin/OWNERS
new file mode 100644
index 0000000..e95633a
--- /dev/null
+++ b/core/tests/coretests/src/android/app/admin/OWNERS
@@ -0,0 +1 @@
+include /core/java/android/app/admin/OWNERS
diff --git a/core/tests/coretests/src/android/view/OWNERS b/core/tests/coretests/src/android/view/OWNERS
index fa1aa5e..74cdd21 100644
--- a/core/tests/coretests/src/android/view/OWNERS
+++ b/core/tests/coretests/src/android/view/OWNERS
@@ -1,3 +1,6 @@
+# Accessibility
+per-file WindowInfoTest.java = file:/services/accessibility/OWNERS
+
 # Input
 per-file *MotionEventTest.* = file:/services/core/java/com/android/server/input/OWNERS
 per-file *KeyEventTest.* = file:/services/core/java/com/android/server/input/OWNERS
@@ -9,6 +12,7 @@
 per-file *Insets* = file:/services/core/java/com/android/server/wm/OWNERS
 per-file *View* = file:/services/core/java/com/android/server/wm/OWNERS
 per-file *Visibility* = file:/services/core/java/com/android/server/wm/OWNERS
+per-file *Window*  = file:/services/core/java/com/android/server/wm/OWNERS
 
 # Scroll Capture
 per-file *ScrollCapture*.java = file:/packages/SystemUI/src/com/android/systemui/screenshot/OWNERS
diff --git a/core/tests/coretests/src/android/window/OWNERS b/core/tests/coretests/src/android/window/OWNERS
new file mode 100644
index 0000000..6c80cf9
--- /dev/null
+++ b/core/tests/coretests/src/android/window/OWNERS
@@ -0,0 +1,2 @@
+include /services/core/java/com/android/server/wm/OWNERS
+charlesccchen@google.com
diff --git a/core/tests/nfctests/Android.bp b/core/tests/nfctests/Android.bp
new file mode 100644
index 0000000..335cea1
--- /dev/null
+++ b/core/tests/nfctests/Android.bp
@@ -0,0 +1,38 @@
+// Copyright 2021 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "frameworks_base_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_base_license"],
+}
+
+android_test {
+    name: "NfcManagerTests",
+    static_libs: [
+        "androidx.test.ext.junit",
+        "androidx.test.rules",
+        "mockito-target-minus-junit4",
+    ],
+    libs: [
+        "android.test.runner",
+    ],
+    srcs: ["src/**/*.java"],
+    platform_apis: true,
+    certificate: "platform",
+    test_suites: ["device-tests"],
+}
diff --git a/core/tests/nfctests/AndroidManifest.xml b/core/tests/nfctests/AndroidManifest.xml
new file mode 100644
index 0000000..99e2c34c
--- /dev/null
+++ b/core/tests/nfctests/AndroidManifest.xml
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2021 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="android.nfc">
+
+    <application>
+        <uses-library android:name="android.test.runner" />
+    </application>
+
+    <!-- This is a self-instrumenting test package. -->
+    <instrumentation android:name="androidx.test.runner.AndroidJUnitRunner"
+                     android:targetPackage="android.nfc"
+                     android:label="NFC Manager Tests">
+    </instrumentation>
+
+</manifest>
+
diff --git a/core/tests/nfctests/AndroidTest.xml b/core/tests/nfctests/AndroidTest.xml
new file mode 100644
index 0000000..490d6f5
--- /dev/null
+++ b/core/tests/nfctests/AndroidTest.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2021 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<configuration description="Config for NFC Manager test cases">
+    <option name="test-suite-tag" value="apct"/>
+    <option name="test-suite-tag" value="apct-instrumentation"/>
+    <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
+        <option name="cleanup-apks" value="true" />
+        <option name="test-file-name" value="NfcManagerTests.apk" />
+    </target_preparer>
+
+    <option name="test-suite-tag" value="apct"/>
+    <option name="test-tag" value="NfcManagerTests"/>
+
+    <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
+        <option name="package" value="android.nfc" />
+        <option name="hidden-api-checks" value="false"/>
+        <option name="runner" value="androidx.test.runner.AndroidJUnitRunner"/>
+    </test>
+</configuration>
diff --git a/core/tests/nfctests/OWNERS b/core/tests/nfctests/OWNERS
new file mode 100644
index 0000000..34b095c
--- /dev/null
+++ b/core/tests/nfctests/OWNERS
@@ -0,0 +1 @@
+include /core/java/android/nfc/OWNERS
diff --git a/core/tests/nfctests/src/android/nfc/NfcControllerAlwaysOnListenerTest.java b/core/tests/nfctests/src/android/nfc/NfcControllerAlwaysOnListenerTest.java
new file mode 100644
index 0000000..43f9b6f
--- /dev/null
+++ b/core/tests/nfctests/src/android/nfc/NfcControllerAlwaysOnListenerTest.java
@@ -0,0 +1,166 @@
+/*
+ * Copyright 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.nfc;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import android.nfc.NfcAdapter.ControllerAlwaysOnListener;
+import android.os.RemoteException;
+
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.Executor;
+
+/**
+ * Test of {@link NfcControllerAlwaysOnListener}.
+ */
+@SmallTest
+@RunWith(AndroidJUnit4.class)
+public class NfcControllerAlwaysOnListenerTest {
+
+    private INfcAdapter mNfcAdapter = mock(INfcAdapter.class);
+
+    private Throwable mThrowRemoteException = new RemoteException("RemoteException");
+
+    private static Executor getExecutor() {
+        return new Executor() {
+            @Override
+            public void execute(Runnable command) {
+                command.run();
+            }
+        };
+    }
+
+    private static void verifyListenerInvoked(ControllerAlwaysOnListener listener) {
+        verify(listener, times(1)).onControllerAlwaysOnChanged(anyBoolean());
+    }
+
+    @Test
+    public void testRegister_RegisterUnregister() throws RemoteException {
+        NfcControllerAlwaysOnListener mListener =
+                new NfcControllerAlwaysOnListener(mNfcAdapter);
+        ControllerAlwaysOnListener mockListener1 = mock(ControllerAlwaysOnListener.class);
+        ControllerAlwaysOnListener mockListener2 = mock(ControllerAlwaysOnListener.class);
+
+        // Verify that the state listener registered with the NFC Adapter
+        mListener.register(getExecutor(), mockListener1);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+
+        // Register a second client and no new call to NFC Adapter
+        mListener.register(getExecutor(), mockListener2);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+
+        // Unregister first listener
+        mListener.unregister(mockListener1);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+        verify(mNfcAdapter, times(0)).unregisterControllerAlwaysOnListener(any());
+
+        // Unregister second listener and the state listener registered with the NFC Adapter
+        mListener.unregister(mockListener2);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+        verify(mNfcAdapter, times(1)).unregisterControllerAlwaysOnListener(any());
+    }
+
+    @Test
+    public void testRegister_FirstRegisterFails() throws RemoteException {
+        NfcControllerAlwaysOnListener mListener =
+                new NfcControllerAlwaysOnListener(mNfcAdapter);
+        ControllerAlwaysOnListener mockListener1 = mock(ControllerAlwaysOnListener.class);
+        ControllerAlwaysOnListener mockListener2 = mock(ControllerAlwaysOnListener.class);
+
+        // Throw a remote exception whenever first registering
+        doThrow(mThrowRemoteException).when(mNfcAdapter).registerControllerAlwaysOnListener(
+                any());
+
+        mListener.register(getExecutor(), mockListener1);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+
+        // No longer throw an exception, instead succeed
+        doNothing().when(mNfcAdapter).registerControllerAlwaysOnListener(any());
+
+        // Register a different listener
+        mListener.register(getExecutor(), mockListener2);
+        verify(mNfcAdapter, times(2)).registerControllerAlwaysOnListener(any());
+
+        // Ensure first and second listener were invoked
+        mListener.onControllerAlwaysOnChanged(true);
+        verifyListenerInvoked(mockListener1);
+        verifyListenerInvoked(mockListener2);
+    }
+
+    @Test
+    public void testRegister_RegisterSameListenerTwice() throws RemoteException {
+        NfcControllerAlwaysOnListener mListener =
+                new NfcControllerAlwaysOnListener(mNfcAdapter);
+        ControllerAlwaysOnListener mockListener = mock(ControllerAlwaysOnListener.class);
+
+        // Register the same listener Twice
+        mListener.register(getExecutor(), mockListener);
+        mListener.register(getExecutor(), mockListener);
+        verify(mNfcAdapter, times(1)).registerControllerAlwaysOnListener(any());
+
+        // Invoke a state change and ensure the listener is only called once
+        mListener.onControllerAlwaysOnChanged(true);
+        verifyListenerInvoked(mockListener);
+    }
+
+    @Test
+    public void testNotify_AllListenersNotified() throws RemoteException {
+
+        NfcControllerAlwaysOnListener listener = new NfcControllerAlwaysOnListener(mNfcAdapter);
+        List<ControllerAlwaysOnListener> mockListeners = new ArrayList<>();
+        for (int i = 0; i < 10; i++) {
+            ControllerAlwaysOnListener mockListener = mock(ControllerAlwaysOnListener.class);
+            listener.register(getExecutor(), mockListener);
+            mockListeners.add(mockListener);
+        }
+
+        // Invoke a state change and ensure all listeners are invoked
+        listener.onControllerAlwaysOnChanged(true);
+        for (ControllerAlwaysOnListener mListener : mockListeners) {
+            verifyListenerInvoked(mListener);
+        }
+    }
+
+    @Test
+    public void testStateChange_CorrectValue() {
+        runStateChangeValue(true, true);
+        runStateChangeValue(false, false);
+
+    }
+
+    private void runStateChangeValue(boolean isEnabledIn, boolean isEnabledOut) {
+        NfcControllerAlwaysOnListener listener = new NfcControllerAlwaysOnListener(mNfcAdapter);
+        ControllerAlwaysOnListener mockListener = mock(ControllerAlwaysOnListener.class);
+        listener.register(getExecutor(), mockListener);
+        listener.onControllerAlwaysOnChanged(isEnabledIn);
+        verify(mockListener, times(1)).onControllerAlwaysOnChanged(isEnabledOut);
+        verify(mockListener, times(0)).onControllerAlwaysOnChanged(!isEnabledOut);
+    }
+}
diff --git a/core/tests/uwbtests/src/android/uwb/RangingManagerTest.java b/core/tests/uwbtests/src/android/uwb/RangingManagerTest.java
index e41805d..21ef083 100644
--- a/core/tests/uwbtests/src/android/uwb/RangingManagerTest.java
+++ b/core/tests/uwbtests/src/android/uwb/RangingManagerTest.java
@@ -123,8 +123,8 @@
         rangingManager.onRangingReconfigureFailed(handle, REASON, PARAMS);
         verify(callback, times(1)).onReconfigureFailed(eq(REASON), eq(PARAMS));
 
-        rangingManager.onRangingStopped(handle);
-        verify(callback, times(1)).onStopped();
+        rangingManager.onRangingStopped(handle, REASON, PARAMS);
+        verify(callback, times(1)).onStopped(eq(REASON), eq(PARAMS));
 
         rangingManager.onRangingStopFailed(handle, REASON, PARAMS);
         verify(callback, times(1)).onStopFailed(eq(REASON), eq(PARAMS));
diff --git a/data/etc/privapp-permissions-platform.xml b/data/etc/privapp-permissions-platform.xml
index 43fdedc..4d418c3 100644
--- a/data/etc/privapp-permissions-platform.xml
+++ b/data/etc/privapp-permissions-platform.xml
@@ -383,6 +383,7 @@
         <permission name="android.permission.SUSPEND_APPS" />
         <permission name="android.permission.UPDATE_APP_OPS_STATS"/>
         <permission name="android.permission.USE_RESERVED_DISK"/>
+        <permission name="android.permission.UWB_PRIVILEGED"/>
         <permission name="android.permission.WIFI_UPDATE_USABILITY_STATS_SCORE"/>
         <permission name="android.permission.WRITE_MEDIA_STORAGE"/>
         <permission name="android.permission.MANAGE_EXTERNAL_STORAGE"/>
@@ -410,6 +411,7 @@
         <permission name="android.permission.LOG_COMPAT_CHANGE" />
         <permission name="android.permission.READ_COMPAT_CHANGE_CONFIG" />
         <permission name="android.permission.OVERRIDE_COMPAT_CHANGE_CONFIG" />
+        <permission name="android.permission.OVERRIDE_COMPAT_CHANGE_CONFIG_ON_RELEASE_BUILD" />
         <!-- Permissions required to test ambient display. -->
         <permission name="android.permission.READ_DREAM_STATE" />
         <permission name="android.permission.WRITE_DREAM_STATE" />
@@ -458,6 +460,15 @@
         <permission name="android.permission.REGISTER_MEDIA_RESOURCE_OBSERVER" />
         <!-- Permission required for CTS test - CtsAlarmManagerTestCases -->
         <permission name="android.permission.SCHEDULE_PRIORITIZED_ALARM" />
+        <permission name="android.permission.WRITE_EMBEDDED_SUBSCRIPTIONS" />
+        <permission name="android.permission.GET_PROCESS_STATE_AND_OOM_SCORE" />
+        <permission name="android.permission.READ_LOGS" />
+        <permission name="android.permission.BRIGHTNESS_SLIDER_USAGE" />
+        <permission name="android.permission.ACCESS_AMBIENT_LIGHT_STATS" />
+        <permission name="android.permission.CONFIGURE_DISPLAY_BRIGHTNESS" />
+        <permission name="android.permission.SET_VOLUME_KEY_LONG_PRESS_LISTENER" />
+        <permission name="android.permission.SET_MEDIA_KEY_LISTENER" />
+        <permission name="android.permission.SET_VOLUME_KEY_LONG_PRESS_LISTENER" />
     </privapp-permissions>
 
     <privapp-permissions package="com.android.statementservice">
diff --git a/graphics/java/android/graphics/RecordingCanvas.java b/graphics/java/android/graphics/RecordingCanvas.java
index c0e0a24..4a24b42 100644
--- a/graphics/java/android/graphics/RecordingCanvas.java
+++ b/graphics/java/android/graphics/RecordingCanvas.java
@@ -21,6 +21,7 @@
 import android.util.Pools.SynchronizedPool;
 import android.view.DisplayListCanvas;
 import android.view.TextureLayer;
+import android.os.SystemProperties;
 
 import dalvik.annotation.optimization.CriticalNative;
 import dalvik.annotation.optimization.FastNative;
@@ -41,7 +42,14 @@
     private static final int POOL_LIMIT = 25;
 
     /** @hide */
-    public static final int MAX_BITMAP_SIZE = 100 * 1024 * 1024; // 100 MB
+    private static int getPanelFrameSize() {
+        final int DefaultSize = 100 * 1024 * 1024; // 100 MB;
+        return Math.max(SystemProperties.getInt("ro.hwui.max_texture_allocation_size", DefaultSize),
+                DefaultSize);
+    }
+
+    /** @hide */
+    public static final int MAX_BITMAP_SIZE = getPanelFrameSize();
 
     private static final SynchronizedPool<RecordingCanvas> sPool =
             new SynchronizedPool<>(POOL_LIMIT);
diff --git a/keystore/java/android/security/AndroidKeyStoreMaintenance.java b/keystore/java/android/security/AndroidKeyStoreMaintenance.java
index 72cea0c..82639de 100644
--- a/keystore/java/android/security/AndroidKeyStoreMaintenance.java
+++ b/keystore/java/android/security/AndroidKeyStoreMaintenance.java
@@ -47,7 +47,6 @@
      * @hide
      */
     public static int onUserAdded(@NonNull int userId) {
-        if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
         try {
             getService().onUserAdded(userId);
             return 0;
@@ -68,7 +67,6 @@
      * @hide
      */
     public static int onUserRemoved(int userId) {
-        if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
         try {
             getService().onUserRemoved(userId);
             return 0;
@@ -91,7 +89,6 @@
      * @hide
      */
     public static int onUserPasswordChanged(int userId, @Nullable byte[] password) {
-        if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
         try {
             getService().onUserPasswordChanged(userId, password);
             return 0;
@@ -109,7 +106,6 @@
      * be cleared.
      */
     public static int clearNamespace(@Domain int domain, long namespace) {
-        if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
         try {
             getService().clearNamespace(domain, namespace);
             return 0;
@@ -144,7 +140,6 @@
      * Informs Keystore 2.0 that an off body event was detected.
      */
     public static void onDeviceOffBody() {
-        if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return;
         try {
             getService().onDeviceOffBody();
         } catch (Exception e) {
diff --git a/keystore/java/android/security/Authorization.java b/keystore/java/android/security/Authorization.java
index 50a9082..bd72d45 100644
--- a/keystore/java/android/security/Authorization.java
+++ b/keystore/java/android/security/Authorization.java
@@ -48,7 +48,6 @@
      * @return 0 if successful or {@code ResponseCode.SYSTEM_ERROR}.
      */
     public static int addAuthToken(@NonNull HardwareAuthToken authToken) {
-        if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
         try {
             getService().addAuthToken(authToken);
             return 0;
@@ -80,7 +79,6 @@
      */
     public static int onLockScreenEvent(@NonNull boolean locked, @NonNull int userId,
             @Nullable byte[] syntheticPassword) {
-        if (!android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) return 0;
         try {
             if (locked) {
                 getService().onLockScreenEvent(LockScreenEvent.LOCK, userId, null);
diff --git a/keystore/java/android/security/Credentials.java b/keystore/java/android/security/Credentials.java
index ae9f8664..28c601b 100644
--- a/keystore/java/android/security/Credentials.java
+++ b/keystore/java/android/security/Credentials.java
@@ -208,78 +208,4 @@
             pr.close();
         }
     }
-
-    /**
-     * Delete all types (private key, user certificate, CA certificate) for a
-     * particular {@code alias}. All three can exist for any given alias.
-     * Returns {@code true} if the alias no longer contains any types.
-     */
-    public static boolean deleteAllTypesForAlias(KeyStore keystore, String alias) {
-        return deleteAllTypesForAlias(keystore, alias, KeyStore.UID_SELF);
-    }
-
-    /**
-     * Delete all types (private key, user certificate, CA certificate) for a
-     * particular {@code alias}. All three can exist for any given alias.
-     * Returns {@code true} if the alias no longer contains any types.
-     */
-    public static boolean deleteAllTypesForAlias(KeyStore keystore, String alias, int uid) {
-        /*
-         * Make sure every type is deleted. There can be all three types, so
-         * don't use a conditional here.
-         */
-        return deleteUserKeyTypeForAlias(keystore, alias, uid)
-                & deleteCertificateTypesForAlias(keystore, alias, uid);
-    }
-
-    /**
-     * Delete certificate types (user certificate, CA certificate) for a
-     * particular {@code alias}. Both can exist for any given alias.
-     * Returns {@code true} if the alias no longer contains either type.
-     */
-    public static boolean deleteCertificateTypesForAlias(KeyStore keystore, String alias) {
-        return deleteCertificateTypesForAlias(keystore, alias, KeyStore.UID_SELF);
-    }
-
-    /**
-     * Delete certificate types (user certificate, CA certificate) for a
-     * particular {@code alias}. Both can exist for any given alias.
-     * Returns {@code true} if the alias no longer contains either type.
-     */
-    public static boolean deleteCertificateTypesForAlias(KeyStore keystore, String alias, int uid) {
-        /*
-         * Make sure every certificate type is deleted. There can be two types,
-         * so don't use a conditional here.
-         */
-        return keystore.delete(Credentials.USER_CERTIFICATE + alias, uid)
-                & keystore.delete(Credentials.CA_CERTIFICATE + alias, uid);
-    }
-
-    /**
-     * Delete user key for a particular {@code alias}.
-     * Returns {@code true} if the entry no longer exists.
-     */
-    public static boolean deleteUserKeyTypeForAlias(KeyStore keystore, String alias) {
-        return deleteUserKeyTypeForAlias(keystore, alias, KeyStore.UID_SELF);
-    }
-
-    /**
-     * Delete user key for a particular {@code alias}.
-     * Returns {@code true} if the entry no longer exists.
-     */
-    public static boolean deleteUserKeyTypeForAlias(KeyStore keystore, String alias, int uid) {
-        int ret = keystore.delete2(Credentials.USER_PRIVATE_KEY + alias, uid);
-        if (ret == KeyStore.KEY_NOT_FOUND) {
-            return keystore.delete(Credentials.USER_SECRET_KEY + alias, uid);
-        }
-        return ret == KeyStore.NO_ERROR;
-    }
-
-    /**
-     * Delete legacy prefixed entry for a particular {@code alias}
-     * Returns {@code true} if the entry no longer exists.
-     */
-    public static boolean deleteLegacyKeyForAlias(KeyStore keystore, String alias, int uid) {
-        return keystore.delete(Credentials.USER_SECRET_KEY + alias, uid);
-    }
 }
diff --git a/keystore/java/android/security/KeyChain.java b/keystore/java/android/security/KeyChain.java
index d59ca98..fd0db93 100644
--- a/keystore/java/android/security/KeyChain.java
+++ b/keystore/java/android/security/KeyChain.java
@@ -37,7 +37,6 @@
 import android.os.RemoteException;
 import android.os.UserHandle;
 import android.os.UserManager;
-import android.security.keystore.AndroidKeyStoreProvider;
 import android.security.keystore.KeyPermanentlyInvalidatedException;
 import android.security.keystore.KeyProperties;
 import android.system.keystore2.Domain;
@@ -676,23 +675,13 @@
             return null;
         }
 
-        if (AndroidKeyStoreProvider.isKeystore2Enabled()) {
-            try {
-                return android.security.keystore2.AndroidKeyStoreProvider
-                        .loadAndroidKeyStoreKeyPairFromKeystore(
-                                KeyStore2.getInstance(),
-                                getGrantDescriptor(keyId));
-            } catch (UnrecoverableKeyException | KeyPermanentlyInvalidatedException e) {
-                throw new KeyChainException(e);
-            }
-        } else {
-            try {
-                return AndroidKeyStoreProvider.loadAndroidKeyStoreKeyPairFromKeystore(
-                        KeyStore.getInstance(), keyId, KeyStore.UID_SELF);
-            } catch (RuntimeException | UnrecoverableKeyException
-                    | KeyPermanentlyInvalidatedException e) {
-                throw new KeyChainException(e);
-            }
+        try {
+            return android.security.keystore2.AndroidKeyStoreProvider
+                    .loadAndroidKeyStoreKeyPairFromKeystore(
+                            KeyStore2.getInstance(),
+                            getGrantDescriptor(keyId));
+        } catch (UnrecoverableKeyException | KeyPermanentlyInvalidatedException e) {
+            throw new KeyChainException(e);
         }
     }
 
diff --git a/keystore/java/android/security/KeyStore.java b/keystore/java/android/security/KeyStore.java
index b05149e..a954344 100644
--- a/keystore/java/android/security/KeyStore.java
+++ b/keystore/java/android/security/KeyStore.java
@@ -16,53 +16,11 @@
 
 package android.security;
 
-import android.app.ActivityThread;
-import android.app.Application;
-import android.app.KeyguardManager;
 import android.compat.annotation.UnsupportedAppUsage;
-import android.content.Context;
-import android.hardware.biometrics.BiometricManager;
-import android.os.Binder;
 import android.os.Build;
-import android.os.IBinder;
-import android.os.Process;
-import android.os.RemoteException;
-import android.os.ServiceManager;
 import android.os.UserHandle;
-import android.security.keymaster.ExportResult;
-import android.security.keymaster.KeyCharacteristics;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterBlob;
-import android.security.keymaster.KeymasterCertificateChain;
-import android.security.keymaster.KeymasterDefs;
-import android.security.keymaster.OperationResult;
-import android.security.keystore.IKeystoreService;
-import android.security.keystore.KeyExpiredException;
-import android.security.keystore.KeyNotYetValidException;
-import android.security.keystore.KeyPermanentlyInvalidatedException;
-import android.security.keystore.KeyProperties;
-import android.security.keystore.KeystoreResponse;
-import android.security.keystore.UserNotAuthenticatedException;
 import android.security.maintenance.UserState;
 import android.system.keystore2.Domain;
-import android.util.Log;
-
-import com.android.internal.org.bouncycastle.asn1.ASN1InputStream;
-import com.android.internal.org.bouncycastle.asn1.pkcs.PrivateKeyInfo;
-
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.math.BigInteger;
-import java.security.InvalidKeyException;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-import java.util.Locale;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.ExecutionException;
-
-import sun.security.util.ObjectIdentifier;
-import sun.security.x509.AlgorithmId;
 
 /**
  * @hide This should not be made public in its present form because it
@@ -75,79 +33,10 @@
     // ResponseCodes - see system/security/keystore/include/keystore/keystore.h
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public static final int NO_ERROR = 1;
-    public static final int LOCKED = 2;
-    public static final int UNINITIALIZED = 3;
-    public static final int SYSTEM_ERROR = 4;
-    public static final int PROTOCOL_ERROR = 5;
-    public static final int PERMISSION_DENIED = 6;
-    public static final int KEY_NOT_FOUND = 7;
-    public static final int VALUE_CORRUPTED = 8;
-    public static final int UNDEFINED_ACTION = 9;
-    public static final int WRONG_PASSWORD = 10;
-    public static final int KEY_ALREADY_EXISTS = 16;
-    public static final int CANNOT_ATTEST_IDS = -66;
-    public static final int HARDWARE_TYPE_UNAVAILABLE = -68;
-
-    /**
-     * Per operation authentication is needed before this operation is valid.
-     * This is returned from {@link #begin} when begin succeeds but the operation uses
-     * per-operation authentication and must authenticate before calling {@link #update} or
-     * {@link #finish}.
-     */
-    public static final int OP_AUTH_NEEDED = 15;
-
-    // Used when a user changes their pin, invalidating old auth bound keys.
-    public static final int KEY_PERMANENTLY_INVALIDATED = 17;
 
     // Used for UID field to indicate the calling UID.
     public static final int UID_SELF = -1;
 
-    // Flags for "put" "import" and "generate"
-    public static final int FLAG_NONE = 0;
-
-    /**
-     * Indicates that this key (or key pair) must be encrypted at rest. This will protect the key
-     * (or key pair) with the secure lock screen credential (e.g., password, PIN, or pattern).
-     *
-     * <p>Note that this requires that the secure lock screen (e.g., password, PIN, pattern) is set
-     * up, otherwise key (or key pair) generation or import will fail. Moreover, this key (or key
-     * pair) will be deleted when the secure lock screen is disabled or reset (e.g., by the user or
-     * a Device Administrator). Finally, this key (or key pair) cannot be used until the user
-     * unlocks the secure lock screen after boot.
-     *
-     * @see KeyguardManager#isDeviceSecure()
-     */
-    public static final int FLAG_ENCRYPTED = 1;
-
-    /**
-     * Select Software keymaster device, which as of this writing is the lowest security
-     * level available on an android device. If neither FLAG_STRONGBOX nor FLAG_SOFTWARE is provided
-     * A TEE based keymaster implementation is implied.
-     *
-     * Need to be in sync with KeyStoreFlag in system/security/keystore/include/keystore/keystore.h
-     * For historical reasons this corresponds to the KEYSTORE_FLAG_FALLBACK flag.
-     */
-    public static final int FLAG_SOFTWARE = 1 << 1;
-
-    /**
-     * A private flag that's only available to system server to indicate that this key is part of
-     * device encryption flow so it receives special treatment from keystore. For example this key
-     * will not be super encrypted, and it will be stored separately under an unique UID instead
-     * of the caller UID i.e. SYSTEM.
-     *
-     * Need to be in sync with KeyStoreFlag in system/security/keystore/include/keystore/keystore.h
-     */
-    public static final int FLAG_CRITICAL_TO_DEVICE_ENCRYPTION = 1 << 3;
-
-    /**
-     * Select Strongbox keymaster device, which as of this writing the the highest security level
-     * available an android devices. If neither FLAG_STRONGBOX nor FLAG_SOFTWARE is provided
-     * A TEE based keymaster implementation is implied.
-     *
-     * Need to be in sync with KeyStoreFlag in system/security/keystore/include/keystore/keystore.h
-     */
-    public static final int FLAG_STRONGBOX = 1 << 4;
-
     // States
     public enum State {
         @UnsupportedAppUsage
@@ -157,853 +46,87 @@
         UNINITIALIZED
     };
 
-    private int mError = NO_ERROR;
-
-    private final IKeystoreService mBinder;
-    private final Context mContext;
-
-    private IBinder mToken;
-
-    private KeyStore(IKeystoreService binder) {
-        mBinder = binder;
-        mContext = getApplicationContext();
-    }
-
-    @UnsupportedAppUsage
-    public static Context getApplicationContext() {
-        Application application = ActivityThread.currentApplication();
-        if (application == null) {
-            throw new IllegalStateException(
-                    "Failed to obtain application Context from ActivityThread");
-        }
-        return application;
-    }
+    private static final KeyStore KEY_STORE = new KeyStore();
 
     @UnsupportedAppUsage
     public static KeyStore getInstance() {
-        IKeystoreService keystore = IKeystoreService.Stub.asInterface(ServiceManager
-                .getService("android.security.keystore"));
-        return new KeyStore(keystore);
+        return KEY_STORE;
     }
 
-    private synchronized IBinder getToken() {
-        if (mToken == null) {
-            mToken = new Binder();
-        }
-        return mToken;
-    }
-
+    /** @hide */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public State state(int userId) {
-        final int ret;
-        try {
-            if (android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) {
-                int userState = AndroidKeyStoreMaintenance.getState(userId);
-                switch (userState) {
-                    case UserState.UNINITIALIZED:
-                        return KeyStore.State.UNINITIALIZED;
-                    case UserState.LSKF_UNLOCKED:
-                        return KeyStore.State.UNLOCKED;
-                    case UserState.LSKF_LOCKED:
-                        return KeyStore.State.LOCKED;
-                    default:
-                        throw new AssertionError(userState);
-                }
-            }
-            ret = mBinder.getState(userId);
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            throw new AssertionError(e);
-        }
-
-        switch (ret) {
-            case NO_ERROR: return State.UNLOCKED;
-            case LOCKED: return State.LOCKED;
-            case UNINITIALIZED: return State.UNINITIALIZED;
-            default: throw new AssertionError(mError);
+        int userState = AndroidKeyStoreMaintenance.getState(userId);
+        switch (userState) {
+            case UserState.UNINITIALIZED:
+                return KeyStore.State.UNINITIALIZED;
+            case UserState.LSKF_UNLOCKED:
+                return KeyStore.State.UNLOCKED;
+            case UserState.LSKF_LOCKED:
+                return KeyStore.State.LOCKED;
+            default:
+                throw new AssertionError(userState);
         }
     }
 
+    /** @hide */
     @UnsupportedAppUsage
     public State state() {
         return state(UserHandle.myUserId());
     }
 
-    public boolean isUnlocked() {
-        return state() == State.UNLOCKED;
-    }
-
-    public byte[] get(String key, int uid) {
-        return get(key, uid, false);
-    }
-
+    /** @hide */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public byte[] get(String key) {
-        return get(key, UID_SELF);
+        return null;
     }
 
-    public byte[] get(String key, int uid, boolean suppressKeyNotFoundWarning) {
-        try {
-            key = key != null ? key : "";
-            return mBinder.get(key, uid);
-        } catch (RemoteException e) {
-             Log.w(TAG, "Cannot connect to keystore", e);
-            return null;
-        } catch (android.os.ServiceSpecificException e) {
-            if (!suppressKeyNotFoundWarning || e.errorCode != KEY_NOT_FOUND) {
-                Log.w(TAG, "KeyStore exception", e);
-            }
-            return null;
-        }
-    }
-
-    public byte[] get(String key, boolean suppressKeyNotFoundWarning) {
-        return get(key, UID_SELF, suppressKeyNotFoundWarning);
-    }
-
-
-    public boolean put(String key, byte[] value, int uid, int flags) {
-        return insert(key, value, uid, flags) == NO_ERROR;
-    }
-
-    public int insert(String key, byte[] value, int uid, int flags) {
-        try {
-            if (value == null) {
-                value = new byte[0];
-            }
-            int error = mBinder.insert(key, value, uid, flags);
-            if (error == KEY_ALREADY_EXISTS) {
-                mBinder.del(key, uid);
-                error = mBinder.insert(key, value, uid, flags);
-            }
-            return error;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return SYSTEM_ERROR;
-        }
-    }
-
-    int delete2(String key, int uid) {
-        try {
-            return mBinder.del(key, uid);
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return SYSTEM_ERROR;
-        }
-    }
-
-    public boolean delete(String key, int uid) {
-        int ret = delete2(key, uid);
-        return ret == NO_ERROR || ret == KEY_NOT_FOUND;
-    }
-
+    /** @hide */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public boolean delete(String key) {
-        return delete(key, UID_SELF);
-    }
-
-    public boolean contains(String key, int uid) {
-        try {
-            return mBinder.exist(key, uid) == NO_ERROR;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return false;
-        }
-    }
-
-    public boolean contains(String key) {
-        return contains(key, UID_SELF);
-    }
-
-    /**
-     * List all entries in the keystore for {@code uid} starting with {@code prefix}.
-     */
-    public String[] list(String prefix, int uid) {
-        try {
-            return mBinder.list(prefix, uid);
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return null;
-        } catch (android.os.ServiceSpecificException e) {
-            Log.w(TAG, "KeyStore exception", e);
-            return null;
-        }
+        return false;
     }
 
     /**
      * List uids of all keys that are auth bound to the current user.
      * Only system is allowed to call this method.
+     * @hide
+     * @deprecated This function always returns null.
      */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public int[] listUidsOfAuthBoundKeys() {
-        // uids are returned as a list of strings because list of integers
-        // as an output parameter is not supported by aidl-cpp.
-        List<String> uidsOut = new ArrayList<>();
-        try {
-            int rc = mBinder.listUidsOfAuthBoundKeys(uidsOut);
-            if (rc != NO_ERROR) {
-                Log.w(TAG, String.format("listUidsOfAuthBoundKeys failed with error code %d", rc));
-                return null;
-            }
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return null;
-        } catch (android.os.ServiceSpecificException e) {
-            Log.w(TAG, "KeyStore exception", e);
-            return null;
-        }
-        // Turn list of strings into an array of uid integers.
-        return uidsOut.stream().mapToInt(Integer::parseInt).toArray();
-   }
-
-    public String[] list(String prefix) {
-        return list(prefix, UID_SELF);
+        return null;
     }
 
+
     /**
-     * Attempt to lock the keystore for {@code user}.
-     *
-     * @param userId Android user to lock.
-     * @return whether {@code user}'s keystore was locked.
+     * @hide
+     * @deprecated This function has no effect.
      */
-    public boolean lock(int userId) {
-        try {
-            return mBinder.lock(userId) == NO_ERROR;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return false;
-        }
-    }
-
-    public boolean lock() {
-        return lock(UserHandle.myUserId());
-    }
-
-    /**
-     * Attempt to unlock the keystore for {@code user} with the password {@code password}.
-     * This is required before keystore entries created with FLAG_ENCRYPTED can be accessed or
-     * created.
-     *
-     * @param userId Android user ID to operate on
-     * @param password user's keystore password. Should be the most recent value passed to
-     * {@link #onUserPasswordChanged} for the user.
-     *
-     * @return whether the keystore was unlocked.
-     */
-    public boolean unlock(int userId, String password) {
-        try {
-            password = password != null ? password : "";
-            mError = mBinder.unlock(userId, password);
-            return mError == NO_ERROR;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return false;
-        }
-    }
-
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public boolean unlock(String password) {
-        return unlock(UserHandle.getUserId(Process.myUid()), password);
+        return false;
     }
 
     /**
-     * Check if the keystore for {@code userId} is empty.
+     *
+     * @return
+     * @deprecated This function always returns true.
+     * @hide
      */
-    public boolean isEmpty(int userId) {
-        try {
-            return mBinder.isEmpty(userId) != 0;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return false;
-        }
-    }
-
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 115609023)
     public boolean isEmpty() {
-        return isEmpty(UserHandle.myUserId());
-    }
-
-    public String grant(String key, int uid) {
-        try {
-            String grantAlias =  mBinder.grant(key, uid);
-            if (grantAlias == "") return null;
-            return grantAlias;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return null;
-        }
-    }
-
-    public boolean ungrant(String key, int uid) {
-        try {
-            return mBinder.ungrant(key, uid) == NO_ERROR;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return false;
-        }
-    }
-
-    /**
-     * Returns the last modification time of the key in milliseconds since the
-     * epoch. Will return -1L if the key could not be found or other error.
-     */
-    public long getmtime(String key, int uid) {
-        try {
-            final long millis = mBinder.getmtime(key, uid);
-            if (millis == -1L) {
-                return -1L;
-            }
-
-            return millis * 1000L;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return -1L;
-        }
-    }
-
-    public long getmtime(String key) {
-        return getmtime(key, UID_SELF);
-    }
-
-    // TODO: remove this when it's removed from Settings
-    public boolean isHardwareBacked() {
-        return isHardwareBacked("RSA");
-    }
-
-    public boolean isHardwareBacked(String keyType) {
-        try {
-            return mBinder.is_hardware_backed(keyType.toUpperCase(Locale.US)) == NO_ERROR;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return false;
-        }
-    }
-
-    public boolean clearUid(int uid) {
-        try {
-            if (android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) {
-                return AndroidKeyStoreMaintenance.clearNamespace(Domain.APP, uid) == 0;
-            }
-            return mBinder.clear_uid(uid) == NO_ERROR;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return false;
-        }
-    }
-
-    public int getLastError() {
-        return mError;
-    }
-
-    public boolean addRngEntropy(byte[] data, int flags) {
-        KeystoreResultPromise promise = new KeystoreResultPromise();
-        try {
-            mBinder.asBinder().linkToDeath(promise, 0);
-            int errorCode = mBinder.addRngEntropy(promise, data, flags);
-            if (errorCode == NO_ERROR) {
-                return interruptedPreservingGet(promise.getFuture()).getErrorCode() == NO_ERROR;
-            } else {
-                return false;
-            }
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return false;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "AddRngEntropy completed with exception", e);
-            return false;
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
-    }
-
-    private class KeyCharacteristicsCallbackResult {
-        private KeystoreResponse keystoreResponse;
-        private KeyCharacteristics keyCharacteristics;
-
-        public KeyCharacteristicsCallbackResult(KeystoreResponse keystoreResponse,
-                                                KeyCharacteristics keyCharacteristics) {
-            this.keystoreResponse = keystoreResponse;
-            this.keyCharacteristics = keyCharacteristics;
-        }
-
-        public KeystoreResponse getKeystoreResponse() {
-            return keystoreResponse;
-        }
-
-        public void setKeystoreResponse(KeystoreResponse keystoreResponse) {
-            this.keystoreResponse = keystoreResponse;
-        }
-
-        public KeyCharacteristics getKeyCharacteristics() {
-            return keyCharacteristics;
-        }
-
-        public void setKeyCharacteristics(KeyCharacteristics keyCharacteristics) {
-            this.keyCharacteristics = keyCharacteristics;
-        }
-    }
-
-    private class KeyCharacteristicsPromise
-            extends android.security.keystore.IKeystoreKeyCharacteristicsCallback.Stub
-            implements IBinder.DeathRecipient {
-        final private CompletableFuture<KeyCharacteristicsCallbackResult> future =
-                new CompletableFuture<KeyCharacteristicsCallbackResult>();
-        @Override
-        public void onFinished(KeystoreResponse keystoreResponse,
-                               KeyCharacteristics keyCharacteristics)
-                                       throws android.os.RemoteException {
-            future.complete(
-                    new KeyCharacteristicsCallbackResult(keystoreResponse, keyCharacteristics));
-        }
-        public final CompletableFuture<KeyCharacteristicsCallbackResult> getFuture() {
-            return future;
-        }
-        @Override
-        public void binderDied() {
-            future.completeExceptionally(new RemoteException("Keystore died"));
-        }
-    };
-
-    private int generateKeyInternal(String alias, KeymasterArguments args, byte[] entropy, int uid,
-            int flags, KeyCharacteristics outCharacteristics)
-                    throws RemoteException, ExecutionException {
-        KeyCharacteristicsPromise promise = new KeyCharacteristicsPromise();
-        int error = NO_ERROR;
-        KeyCharacteristicsCallbackResult result = null;
-        try {
-            mBinder.asBinder().linkToDeath(promise, 0);
-            error = mBinder.generateKey(promise, alias, args, entropy, uid, flags);
-            if (error != NO_ERROR) {
-                Log.e(TAG, "generateKeyInternal failed on request " + error);
-                return error;
-            }
-            result = interruptedPreservingGet(promise.getFuture());
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
-
-        error = result.getKeystoreResponse().getErrorCode();
-        if (error != NO_ERROR) {
-            Log.e(TAG, "generateKeyInternal failed on response " + error);
-            return error;
-        }
-        KeyCharacteristics characteristics = result.getKeyCharacteristics();
-        if (characteristics == null) {
-            Log.e(TAG, "generateKeyInternal got empty key characteristics " + error);
-            return SYSTEM_ERROR;
-        }
-        outCharacteristics.shallowCopyFrom(characteristics);
-        return NO_ERROR;
-    }
-
-    public int generateKey(String alias, KeymasterArguments args, byte[] entropy, int uid,
-            int flags, KeyCharacteristics outCharacteristics) {
-        try {
-            entropy = entropy != null ? entropy : new byte[0];
-            args = args != null ? args : new KeymasterArguments();
-            int error = generateKeyInternal(alias, args, entropy, uid, flags, outCharacteristics);
-            if (error == KEY_ALREADY_EXISTS) {
-                mBinder.del(alias, uid);
-                error = generateKeyInternal(alias, args, entropy, uid, flags, outCharacteristics);
-            }
-            return error;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return SYSTEM_ERROR;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "generateKey completed with exception", e);
-            return SYSTEM_ERROR;
-        }
-    }
-
-    public int generateKey(String alias, KeymasterArguments args, byte[] entropy, int flags,
-            KeyCharacteristics outCharacteristics) {
-        return generateKey(alias, args, entropy, UID_SELF, flags, outCharacteristics);
-    }
-
-    public int getKeyCharacteristics(String alias, KeymasterBlob clientId, KeymasterBlob appId,
-            int uid, KeyCharacteristics outCharacteristics) {
-        KeyCharacteristicsPromise promise = new KeyCharacteristicsPromise();
-        try {
-            mBinder.asBinder().linkToDeath(promise, 0);
-            clientId = clientId != null ? clientId : new KeymasterBlob(new byte[0]);
-            appId = appId != null ? appId : new KeymasterBlob(new byte[0]);
-
-            int error = mBinder.getKeyCharacteristics(promise, alias, clientId, appId, uid);
-            if (error != NO_ERROR) return error;
-
-            KeyCharacteristicsCallbackResult result = interruptedPreservingGet(promise.getFuture());
-            error = result.getKeystoreResponse().getErrorCode();
-            if (error != NO_ERROR) return error;
-
-            KeyCharacteristics characteristics = result.getKeyCharacteristics();
-            if (characteristics == null) return SYSTEM_ERROR;
-            outCharacteristics.shallowCopyFrom(characteristics);
-            return NO_ERROR;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return SYSTEM_ERROR;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "GetKeyCharacteristics completed with exception", e);
-            return SYSTEM_ERROR;
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
-    }
-
-    public int getKeyCharacteristics(String alias, KeymasterBlob clientId, KeymasterBlob appId,
-            KeyCharacteristics outCharacteristics) {
-        return getKeyCharacteristics(alias, clientId, appId, UID_SELF, outCharacteristics);
-    }
-
-    private int importKeyInternal(String alias, KeymasterArguments args, int format, byte[] keyData,
-            int uid, int flags, KeyCharacteristics outCharacteristics)
-                    throws RemoteException, ExecutionException {
-        KeyCharacteristicsPromise promise = new KeyCharacteristicsPromise();
-        mBinder.asBinder().linkToDeath(promise, 0);
-        try {
-            int error = mBinder.importKey(promise, alias, args, format, keyData, uid, flags);
-            if (error != NO_ERROR) return error;
-
-            KeyCharacteristicsCallbackResult result = interruptedPreservingGet(promise.getFuture());
-
-            error = result.getKeystoreResponse().getErrorCode();
-            if (error != NO_ERROR) return error;
-
-            KeyCharacteristics characteristics = result.getKeyCharacteristics();
-            if (characteristics == null) return SYSTEM_ERROR;
-            outCharacteristics.shallowCopyFrom(characteristics);
-            return NO_ERROR;
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
-    }
-
-    public int importKey(String alias, KeymasterArguments args, int format, byte[] keyData,
-            int uid, int flags, KeyCharacteristics outCharacteristics) {
-        try {
-            int error = importKeyInternal(alias, args, format, keyData, uid, flags,
-                    outCharacteristics);
-            if (error == KEY_ALREADY_EXISTS) {
-                mBinder.del(alias, uid);
-                error = importKeyInternal(alias, args, format, keyData, uid, flags,
-                        outCharacteristics);
-            }
-            return error;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return SYSTEM_ERROR;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "ImportKey completed with exception", e);
-            return SYSTEM_ERROR;
-        }
-    }
-
-    public int importKey(String alias, KeymasterArguments args, int format, byte[] keyData,
-            int flags, KeyCharacteristics outCharacteristics) {
-        return importKey(alias, args, format, keyData, UID_SELF, flags, outCharacteristics);
-    }
-
-    private String getAlgorithmFromPKCS8(byte[] keyData) {
-        try {
-            final ASN1InputStream bIn = new ASN1InputStream(new ByteArrayInputStream(keyData));
-            final PrivateKeyInfo pki = PrivateKeyInfo.getInstance(bIn.readObject());
-            final String algOid = pki.getPrivateKeyAlgorithm().getAlgorithm().getId();
-            return new AlgorithmId(new ObjectIdentifier(algOid)).getName();
-        } catch (IOException e) {
-            Log.e(TAG, "getAlgorithmFromPKCS8 Failed to parse key data");
-            Log.e(TAG, Log.getStackTraceString(e));
-            return null;
-        }
-    }
-
-    private KeymasterArguments makeLegacyArguments(String algorithm) {
-        KeymasterArguments args = new KeymasterArguments();
-        args.addEnum(KeymasterDefs.KM_TAG_ALGORITHM,
-                KeyProperties.KeyAlgorithm.toKeymasterAsymmetricKeyAlgorithm(algorithm));
-        args.addEnum(KeymasterDefs.KM_TAG_PURPOSE, KeymasterDefs.KM_PURPOSE_SIGN);
-        args.addEnum(KeymasterDefs.KM_TAG_PURPOSE, KeymasterDefs.KM_PURPOSE_VERIFY);
-        args.addEnum(KeymasterDefs.KM_TAG_PURPOSE, KeymasterDefs.KM_PURPOSE_ENCRYPT);
-        args.addEnum(KeymasterDefs.KM_TAG_PURPOSE, KeymasterDefs.KM_PURPOSE_DECRYPT);
-        args.addEnum(KeymasterDefs.KM_TAG_PADDING, KeymasterDefs.KM_PAD_NONE);
-        if (algorithm.equalsIgnoreCase(KeyProperties.KEY_ALGORITHM_RSA)) {
-            args.addEnum(KeymasterDefs.KM_TAG_PADDING, KeymasterDefs.KM_PAD_RSA_OAEP);
-            args.addEnum(KeymasterDefs.KM_TAG_PADDING, KeymasterDefs.KM_PAD_RSA_PKCS1_1_5_ENCRYPT);
-            args.addEnum(KeymasterDefs.KM_TAG_PADDING, KeymasterDefs.KM_PAD_RSA_PKCS1_1_5_SIGN);
-            args.addEnum(KeymasterDefs.KM_TAG_PADDING, KeymasterDefs.KM_PAD_RSA_PSS);
-        }
-        args.addEnum(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_NONE);
-        args.addEnum(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_MD5);
-        args.addEnum(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_SHA1);
-        args.addEnum(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_SHA_2_224);
-        args.addEnum(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_SHA_2_256);
-        args.addEnum(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_SHA_2_384);
-        args.addEnum(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_SHA_2_512);
-        args.addBoolean(KeymasterDefs.KM_TAG_NO_AUTH_REQUIRED);
-        args.addDate(KeymasterDefs.KM_TAG_ORIGINATION_EXPIRE_DATETIME, new Date(Long.MAX_VALUE));
-        args.addDate(KeymasterDefs.KM_TAG_USAGE_EXPIRE_DATETIME, new Date(Long.MAX_VALUE));
-        args.addDate(KeymasterDefs.KM_TAG_ACTIVE_DATETIME, new Date(0));
-        return args;
-    }
-
-    public boolean importKey(String alias, byte[] keyData, int uid, int flags) {
-        String algorithm = getAlgorithmFromPKCS8(keyData);
-        if (algorithm == null) return false;
-        KeymasterArguments args = makeLegacyArguments(algorithm);
-        KeyCharacteristics out = new KeyCharacteristics();
-        int result =  importKey(alias, args, KeymasterDefs.KM_KEY_FORMAT_PKCS8, keyData, uid,
-                                flags, out);
-        if (result != NO_ERROR) {
-            Log.e(TAG, Log.getStackTraceString(
-                    new KeyStoreException(result, "legacy key import failed")));
-            return false;
-        }
         return true;
     }
 
-    private int importWrappedKeyInternal(String wrappedKeyAlias, byte[] wrappedKey,
-            String wrappingKeyAlias,
-            byte[] maskingKey, KeymasterArguments args, long rootSid, long fingerprintSid,
-            KeyCharacteristics outCharacteristics)
-                    throws RemoteException, ExecutionException {
-        KeyCharacteristicsPromise promise = new KeyCharacteristicsPromise();
-        mBinder.asBinder().linkToDeath(promise, 0);
-        try {
-            int error = mBinder.importWrappedKey(promise, wrappedKeyAlias, wrappedKey,
-                    wrappingKeyAlias, maskingKey, args, rootSid, fingerprintSid);
-            if (error != NO_ERROR) return error;
-
-            KeyCharacteristicsCallbackResult result = interruptedPreservingGet(promise.getFuture());
-
-            error = result.getKeystoreResponse().getErrorCode();
-            if (error != NO_ERROR) return error;
-
-            KeyCharacteristics characteristics = result.getKeyCharacteristics();
-            if (characteristics == null) return SYSTEM_ERROR;
-            outCharacteristics.shallowCopyFrom(characteristics);
-            return NO_ERROR;
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
-    }
-
-    public int importWrappedKey(String wrappedKeyAlias, byte[] wrappedKey,
-            String wrappingKeyAlias,
-            byte[] maskingKey, KeymasterArguments args, long rootSid, long fingerprintSid, int uid,
-            KeyCharacteristics outCharacteristics) {
-        // TODO b/119217337 uid parameter gets silently ignored.
-        try {
-            int error = importWrappedKeyInternal(wrappedKeyAlias, wrappedKey, wrappingKeyAlias,
-                    maskingKey, args, rootSid, fingerprintSid, outCharacteristics);
-            if (error == KEY_ALREADY_EXISTS) {
-                mBinder.del(wrappedKeyAlias, UID_SELF);
-                error = importWrappedKeyInternal(wrappedKeyAlias, wrappedKey, wrappingKeyAlias,
-                        maskingKey, args, rootSid, fingerprintSid, outCharacteristics);
-            }
-            return error;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return SYSTEM_ERROR;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "ImportWrappedKey completed with exception", e);
-            return SYSTEM_ERROR;
-        }
-    }
-
-    private class ExportKeyPromise
-            extends android.security.keystore.IKeystoreExportKeyCallback.Stub
-            implements IBinder.DeathRecipient {
-        final private CompletableFuture<ExportResult> future = new CompletableFuture<ExportResult>();
-        @Override
-        public void onFinished(ExportResult exportKeyResult) throws android.os.RemoteException {
-            future.complete(exportKeyResult);
-        }
-        public final CompletableFuture<ExportResult> getFuture() {
-            return future;
-        }
-        @Override
-        public void binderDied() {
-            future.completeExceptionally(new RemoteException("Keystore died"));
-        }
-    };
-
-    public ExportResult exportKey(String alias, int format, KeymasterBlob clientId,
-            KeymasterBlob appId, int uid) {
-        ExportKeyPromise promise = new ExportKeyPromise();
-        try {
-            mBinder.asBinder().linkToDeath(promise, 0);
-            clientId = clientId != null ? clientId : new KeymasterBlob(new byte[0]);
-            appId = appId != null ? appId : new KeymasterBlob(new byte[0]);
-            int error = mBinder.exportKey(promise, alias, format, clientId, appId, uid);
-            if (error == NO_ERROR) {
-                return interruptedPreservingGet(promise.getFuture());
-            } else {
-                return new ExportResult(error);
-            }
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return null;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "ExportKey completed with exception", e);
-            return null;
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
-    }
-    public ExportResult exportKey(String alias, int format, KeymasterBlob clientId,
-            KeymasterBlob appId) {
-        return exportKey(alias, format, clientId, appId, UID_SELF);
-    }
-
-    private class OperationPromise
-            extends android.security.keystore.IKeystoreOperationResultCallback.Stub
-            implements IBinder.DeathRecipient {
-        final private CompletableFuture<OperationResult> future = new CompletableFuture<OperationResult>();
-        @Override
-        public void onFinished(OperationResult operationResult) throws android.os.RemoteException {
-            future.complete(operationResult);
-        }
-        public final CompletableFuture<OperationResult> getFuture() {
-            return future;
-        }
-        @Override
-        public void binderDied() {
-            future.completeExceptionally(new RemoteException("Keystore died"));
-        }
-    };
-
-    public OperationResult begin(String alias, int purpose, boolean pruneable,
-            KeymasterArguments args, byte[] entropy, int uid) {
-        OperationPromise promise = new OperationPromise();
-        try {
-            mBinder.asBinder().linkToDeath(promise, 0);
-            args = args != null ? args : new KeymasterArguments();
-            entropy = entropy != null ? entropy : new byte[0];
-            int errorCode =  mBinder.begin(promise, getToken(), alias, purpose, pruneable, args,
-                                           entropy, uid);
-            if (errorCode == NO_ERROR) {
-                return interruptedPreservingGet(promise.getFuture());
-            } else {
-                return new OperationResult(errorCode);
-            }
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return null;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "Begin completed with exception", e);
-            return null;
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
-    }
-
-    public OperationResult begin(String alias, int purpose, boolean pruneable,
-            KeymasterArguments args, byte[] entropy) {
-        entropy = entropy != null ? entropy : new byte[0];
-        args = args != null ? args : new KeymasterArguments();
-        return begin(alias, purpose, pruneable, args, entropy, UID_SELF);
-    }
-
-    public OperationResult update(IBinder token, KeymasterArguments arguments, byte[] input) {
-        OperationPromise promise = new OperationPromise();
-        try {
-            mBinder.asBinder().linkToDeath(promise, 0);
-            arguments = arguments != null ? arguments : new KeymasterArguments();
-            input = input != null ? input : new byte[0];
-            int errorCode =  mBinder.update(promise, token, arguments, input);
-            if (errorCode == NO_ERROR) {
-                return interruptedPreservingGet(promise.getFuture());
-            } else {
-                return new OperationResult(errorCode);
-            }
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return null;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "Update completed with exception", e);
-            return null;
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
-    }
-
     /**
-     * Android KeyStore finish operation.
-     *
-     * @param token Authentication token.
-     * @param arguments Keymaster arguments
-     * @param input Optional additional input data.
-     * @param signature Optional signature to be verified.
-     * @param entropy Optional additional entropy
-     * @return OperationResult that will indicate success or error of the operation.
+     * Forwards the request to clear a UID to Keystore 2.0.
+     * @hide
      */
-    public OperationResult finish(IBinder token, KeymasterArguments arguments, byte[] input,
-            byte[] signature, byte[] entropy) {
-        OperationPromise promise = new OperationPromise();
-        try {
-            mBinder.asBinder().linkToDeath(promise, 0);
-            arguments = arguments != null ? arguments : new KeymasterArguments();
-            entropy = entropy != null ? entropy : new byte[0];
-            input = input != null ? input : new byte[0];
-            signature = signature != null ? signature : new byte[0];
-            int errorCode = mBinder.finish(promise, token, arguments, input, signature, entropy);
-            if (errorCode == NO_ERROR) {
-                return interruptedPreservingGet(promise.getFuture());
-            } else {
-                return new OperationResult(errorCode);
-            }
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return null;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "Finish completed with exception", e);
-            return null;
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
+    public boolean clearUid(int uid) {
+        return AndroidKeyStoreMaintenance.clearNamespace(Domain.APP, uid) == 0;
     }
 
-    public OperationResult finish(IBinder token, KeymasterArguments arguments, byte[] signature) {
-        return finish(token, arguments, null, signature, null);
-    }
-
-    private class KeystoreResultPromise
-            extends android.security.keystore.IKeystoreResponseCallback.Stub
-            implements IBinder.DeathRecipient {
-        final private CompletableFuture<KeystoreResponse> future = new CompletableFuture<KeystoreResponse>();
-        @Override
-        public void onFinished(KeystoreResponse keystoreResponse) throws android.os.RemoteException {
-            future.complete(keystoreResponse);
-        }
-        public final CompletableFuture<KeystoreResponse> getFuture() {
-            return future;
-        }
-        @Override
-        public void binderDied() {
-            future.completeExceptionally(new RemoteException("Keystore died"));
-        }
-    };
-
-    public int abort(IBinder token) {
-        KeystoreResultPromise promise = new KeystoreResultPromise();
-        try {
-            mBinder.asBinder().linkToDeath(promise, 0);
-            int errorCode = mBinder.abort(promise, token);
-            if (errorCode == NO_ERROR) {
-                return interruptedPreservingGet(promise.getFuture()).getErrorCode();
-            } else {
-                return errorCode;
-            }
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return SYSTEM_ERROR;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "Abort completed with exception", e);
-            return SYSTEM_ERROR;
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
-    }
 
     /**
      * Add an authentication record to the keystore authorization table.
@@ -1013,191 +136,7 @@
      * a {@code KeymasterDefs.KM_ERROR_} value or {@code KeyStore} ResponseCode.
      */
     public int addAuthToken(byte[] authToken) {
-        try {
-            Authorization.addAuthToken(authToken);
-            return mBinder.addAuthToken(authToken);
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return SYSTEM_ERROR;
-        }
-    }
-
-    /**
-     * Notify keystore that a user's password has changed.
-     *
-     * @param userId the user whose password changed.
-     * @param newPassword the new password or "" if the password was removed.
-     */
-    public boolean onUserPasswordChanged(int userId, String newPassword) {
-        // Parcel.cpp doesn't support deserializing null strings and treats them as "". Make that
-        // explicit here.
-        if (newPassword == null) {
-            newPassword = "";
-        }
-        try {
-            return mBinder.onUserPasswordChanged(userId, newPassword) == NO_ERROR;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return false;
-        }
-    }
-
-    /**
-     * Notify keystore that a user was added.
-     *
-     * @param userId the new user.
-     * @param parentId the parent of the new user, or -1 if the user has no parent. If parentId is
-     * specified then the new user's keystore will be intialized with the same secure lockscreen
-     * password as the parent.
-     */
-    public void onUserAdded(int userId, int parentId) {
-        try {
-            mBinder.onUserAdded(userId, parentId);
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-        }
-    }
-
-    /**
-     * Notify keystore that a user was added.
-     *
-     * @param userId the new user.
-     */
-    public void onUserAdded(int userId) {
-        onUserAdded(userId, -1);
-    }
-
-    /**
-     * Notify keystore that a user was removed.
-     *
-     * @param userId the removed user.
-     */
-    public void onUserRemoved(int userId) {
-        try {
-            mBinder.onUserRemoved(userId);
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-        }
-    }
-
-    public boolean onUserPasswordChanged(String newPassword) {
-        return onUserPasswordChanged(UserHandle.getUserId(Process.myUid()), newPassword);
-    }
-
-    /**
-     * Notify keystore about the latest user locked state. This is to support keyguard-bound key.
-     */
-    public void onUserLockedStateChanged(int userHandle, boolean locked) {
-        try {
-            mBinder.onKeyguardVisibilityChanged(locked, userHandle);
-        } catch (RemoteException e) {
-            Log.w(TAG, "Failed to update user locked state " + userHandle, e);
-        }
-    }
-
-    private class KeyAttestationCallbackResult {
-        private KeystoreResponse keystoreResponse;
-        private KeymasterCertificateChain certificateChain;
-
-        public KeyAttestationCallbackResult(KeystoreResponse keystoreResponse,
-                KeymasterCertificateChain certificateChain) {
-            this.keystoreResponse = keystoreResponse;
-            this.certificateChain = certificateChain;
-        }
-
-        public KeystoreResponse getKeystoreResponse() {
-            return keystoreResponse;
-        }
-
-        public void setKeystoreResponse(KeystoreResponse keystoreResponse) {
-            this.keystoreResponse = keystoreResponse;
-        }
-
-        public KeymasterCertificateChain getCertificateChain() {
-            return certificateChain;
-        }
-
-        public void setCertificateChain(KeymasterCertificateChain certificateChain) {
-            this.certificateChain = certificateChain;
-        }
-    }
-
-    private class CertificateChainPromise
-            extends android.security.keystore.IKeystoreCertificateChainCallback.Stub
-            implements IBinder.DeathRecipient {
-        final private CompletableFuture<KeyAttestationCallbackResult> future = new CompletableFuture<KeyAttestationCallbackResult>();
-        @Override
-        public void onFinished(KeystoreResponse keystoreResponse,
-                KeymasterCertificateChain certificateChain) throws android.os.RemoteException {
-            future.complete(new KeyAttestationCallbackResult(keystoreResponse, certificateChain));
-        }
-        public final CompletableFuture<KeyAttestationCallbackResult> getFuture() {
-            return future;
-        }
-        @Override
-        public void binderDied() {
-            future.completeExceptionally(new RemoteException("Keystore died"));
-        }
-    };
-
-
-    public int attestKey(
-            String alias, KeymasterArguments params, KeymasterCertificateChain outChain) {
-        CertificateChainPromise promise = new CertificateChainPromise();
-        try {
-            mBinder.asBinder().linkToDeath(promise, 0);
-            if (params == null) {
-                params = new KeymasterArguments();
-            }
-            if (outChain == null) {
-                outChain = new KeymasterCertificateChain();
-            }
-            int error = mBinder.attestKey(promise, alias, params);
-            if (error != NO_ERROR) return error;
-            KeyAttestationCallbackResult result = interruptedPreservingGet(promise.getFuture());
-            error = result.getKeystoreResponse().getErrorCode();
-            if (error == NO_ERROR) {
-                outChain.shallowCopyFrom(result.getCertificateChain());
-            }
-            return error;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return SYSTEM_ERROR;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "AttestKey completed with exception", e);
-            return SYSTEM_ERROR;
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
-    }
-
-    public int attestDeviceIds(KeymasterArguments params, KeymasterCertificateChain outChain) {
-        CertificateChainPromise promise = new CertificateChainPromise();
-        try {
-            mBinder.asBinder().linkToDeath(promise, 0);
-            if (params == null) {
-                params = new KeymasterArguments();
-            }
-            if (outChain == null) {
-                outChain = new KeymasterCertificateChain();
-            }
-            int error = mBinder.attestDeviceIds(promise, params);
-            if (error != NO_ERROR) return error;
-            KeyAttestationCallbackResult result = interruptedPreservingGet(promise.getFuture());
-            error = result.getKeystoreResponse().getErrorCode();
-            if (error == NO_ERROR) {
-                outChain.shallowCopyFrom(result.getCertificateChain());
-            }
-            return error;
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return SYSTEM_ERROR;
-        } catch (ExecutionException e) {
-            Log.e(TAG, "AttestDevicdeIds completed with exception", e);
-            return SYSTEM_ERROR;
-        } finally {
-            mBinder.asBinder().unlinkToDeath(promise, 0);
-        }
+        return Authorization.addAuthToken(authToken);
     }
 
     /**
@@ -1205,77 +144,6 @@
      */
     public void onDeviceOffBody() {
         AndroidKeyStoreMaintenance.onDeviceOffBody();
-        try {
-            mBinder.onDeviceOffBody();
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-        }
-    }
-
-    // Keep in sync with confirmationui/1.0/types.hal.
-    public static final int CONFIRMATIONUI_OK = 0;
-    public static final int CONFIRMATIONUI_CANCELED = 1;
-    public static final int CONFIRMATIONUI_ABORTED = 2;
-    public static final int CONFIRMATIONUI_OPERATION_PENDING = 3;
-    public static final int CONFIRMATIONUI_IGNORED = 4;
-    public static final int CONFIRMATIONUI_SYSTEM_ERROR = 5;
-    public static final int CONFIRMATIONUI_UNIMPLEMENTED = 6;
-    public static final int CONFIRMATIONUI_UNEXPECTED = 7;
-    public static final int CONFIRMATIONUI_UIERROR = 0x10000;
-    public static final int CONFIRMATIONUI_UIERROR_MISSING_GLYPH = 0x10001;
-    public static final int CONFIRMATIONUI_UIERROR_MESSAGE_TOO_LONG = 0x10002;
-    public static final int CONFIRMATIONUI_UIERROR_MALFORMED_UTF8_ENCODING = 0x10003;
-
-    /**
-     * Requests keystore call into the confirmationui HAL to display a prompt.
-     *
-     * @param listener the binder to use for callbacks.
-     * @param promptText the prompt to display.
-     * @param extraData extra data / nonce from application.
-     * @param locale the locale as a BCP 47 langauge tag.
-     * @param uiOptionsAsFlags the UI options to use, as flags.
-     * @return one of the {@code CONFIRMATIONUI_*} constants, for
-     * example {@code KeyStore.CONFIRMATIONUI_OK}.
-     */
-    public int presentConfirmationPrompt(IBinder listener, String promptText, byte[] extraData,
-                                         String locale, int uiOptionsAsFlags) {
-        try {
-            return mBinder.presentConfirmationPrompt(listener, promptText, extraData, locale,
-                                                     uiOptionsAsFlags);
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return CONFIRMATIONUI_SYSTEM_ERROR;
-        }
-    }
-
-    /**
-     * Requests keystore call into the confirmationui HAL to cancel displaying a prompt.
-     *
-     * @param listener the binder passed to the {@link #presentConfirmationPrompt} method.
-     * @return one of the {@code CONFIRMATIONUI_*} constants, for
-     * example {@code KeyStore.CONFIRMATIONUI_OK}.
-     */
-    public int cancelConfirmationPrompt(IBinder listener) {
-        try {
-            return mBinder.cancelConfirmationPrompt(listener);
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return CONFIRMATIONUI_SYSTEM_ERROR;
-        }
-    }
-
-    /**
-     * Requests keystore to check if the confirmationui HAL is available.
-     *
-     * @return whether the confirmationUI HAL is available.
-     */
-    public boolean isConfirmationPromptSupported() {
-        try {
-            return mBinder.isConfirmationPromptSupported();
-        } catch (RemoteException e) {
-            Log.w(TAG, "Cannot connect to keystore", e);
-            return false;
-        }
     }
 
     /**
@@ -1284,143 +152,6 @@
      */
     @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     public static KeyStoreException getKeyStoreException(int errorCode) {
-        if (errorCode > 0) {
-            // KeyStore layer error
-            switch (errorCode) {
-                case NO_ERROR:
-                    return new KeyStoreException(errorCode, "OK");
-                case LOCKED:
-                    return new KeyStoreException(errorCode, "User authentication required");
-                case UNINITIALIZED:
-                    return new KeyStoreException(errorCode, "Keystore not initialized");
-                case SYSTEM_ERROR:
-                    return new KeyStoreException(errorCode, "System error");
-                case PERMISSION_DENIED:
-                    return new KeyStoreException(errorCode, "Permission denied");
-                case KEY_NOT_FOUND:
-                    return new KeyStoreException(errorCode, "Key not found");
-                case VALUE_CORRUPTED:
-                    return new KeyStoreException(errorCode, "Key blob corrupted");
-                case OP_AUTH_NEEDED:
-                    return new KeyStoreException(errorCode, "Operation requires authorization");
-                case KEY_PERMANENTLY_INVALIDATED:
-                    return new KeyStoreException(errorCode, "Key permanently invalidated");
-                default:
-                    return new KeyStoreException(errorCode, String.valueOf(errorCode));
-            }
-        } else {
-            // Keymaster layer error
-            switch (errorCode) {
-                case KeymasterDefs.KM_ERROR_INVALID_AUTHORIZATION_TIMEOUT:
-                    // The name of this parameter significantly differs between Keymaster and
-                    // framework APIs. Use the framework wording to make life easier for developers.
-                    return new KeyStoreException(errorCode,
-                            "Invalid user authentication validity duration");
-                default:
-                    return new KeyStoreException(errorCode,
-                            KeymasterDefs.getErrorMessage(errorCode));
-            }
-        }
-    }
-
-    /**
-     * Returns an {@link InvalidKeyException} corresponding to the provided
-     * {@link KeyStoreException}.
-     */
-    public InvalidKeyException getInvalidKeyException(
-            String keystoreKeyAlias, int uid, KeyStoreException e) {
-        switch (e.getErrorCode()) {
-            case LOCKED:
-                return new UserNotAuthenticatedException();
-            case KeymasterDefs.KM_ERROR_KEY_EXPIRED:
-                return new KeyExpiredException();
-            case KeymasterDefs.KM_ERROR_KEY_NOT_YET_VALID:
-                return new KeyNotYetValidException();
-            case KeymasterDefs.KM_ERROR_KEY_USER_NOT_AUTHENTICATED:
-            case OP_AUTH_NEEDED:
-            {
-                // We now need to determine whether the key/operation can become usable if user
-                // authentication is performed, or whether it can never become usable again.
-                // User authentication requirements are contained in the key's characteristics. We
-                // need to check whether these requirements can be be satisfied by asking the user
-                // to authenticate.
-                KeyCharacteristics keyCharacteristics = new KeyCharacteristics();
-                int getKeyCharacteristicsErrorCode =
-                        getKeyCharacteristics(keystoreKeyAlias, null, null, uid,
-                                keyCharacteristics);
-                if (getKeyCharacteristicsErrorCode != NO_ERROR) {
-                    return new InvalidKeyException(
-                            "Failed to obtained key characteristics",
-                            getKeyStoreException(getKeyCharacteristicsErrorCode));
-                }
-                List<BigInteger> keySids =
-                        keyCharacteristics.getUnsignedLongs(KeymasterDefs.KM_TAG_USER_SECURE_ID);
-                if (keySids.isEmpty()) {
-                    // Key is not bound to any SIDs -- no amount of authentication will help here.
-                    return new KeyPermanentlyInvalidatedException();
-                }
-                long rootSid = GateKeeper.getSecureUserId();
-                if ((rootSid != 0) && (keySids.contains(KeymasterArguments.toUint64(rootSid)))) {
-                    // One of the key's SIDs is the current root SID -- user can be authenticated
-                    // against that SID.
-                    return new UserNotAuthenticatedException();
-                }
-
-                final BiometricManager bm = mContext.getSystemService(BiometricManager.class);
-                long[] biometricSids = bm.getAuthenticatorIds();
-
-                // The key must contain every biometric SID. This is because the current API surface
-                // treats all biometrics (capable of keystore integration) equally. e.g. if the
-                // device has multiple keystore-capable sensors, and one of the sensor's SIDs
-                // changed, 1) there is no way for a developer to specify authentication with a
-                // specific sensor (the one that hasn't changed), and 2) currently the only
-                // signal to developers is the UserNotAuthenticatedException, which doesn't
-                // indicate a specific sensor.
-                boolean canUnlockViaBiometrics = true;
-                for (long sid : biometricSids) {
-                    if (!keySids.contains(KeymasterArguments.toUint64(sid))) {
-                        canUnlockViaBiometrics = false;
-                        break;
-                    }
-                }
-
-                if (canUnlockViaBiometrics) {
-                    // All of the biometric SIDs are contained in the key's SIDs.
-                    return new UserNotAuthenticatedException();
-                }
-
-                // None of the key's SIDs can ever be authenticated
-                return new KeyPermanentlyInvalidatedException();
-            }
-            case UNINITIALIZED:
-                return new KeyPermanentlyInvalidatedException();
-            default:
-                return new InvalidKeyException("Keystore operation failed", e);
-        }
-    }
-
-    /**
-     * Returns an {@link InvalidKeyException} corresponding to the provided keystore/keymaster error
-     * code.
-     */
-    public InvalidKeyException getInvalidKeyException(String keystoreKeyAlias, int uid,
-            int errorCode) {
-        return getInvalidKeyException(keystoreKeyAlias, uid, getKeyStoreException(errorCode));
-    }
-
-    private static <R> R interruptedPreservingGet(CompletableFuture<R> future)
-            throws ExecutionException {
-        boolean wasInterrupted = false;
-        while (true) {
-            try {
-                R result = future.get();
-                if (wasInterrupted) {
-                    Thread.currentThread().interrupt();
-                }
-                return result;
-            } catch (InterruptedException e) {
-                wasInterrupted = true;
-            }
-        }
+        return new KeyStoreException(-10000, "Should not be called.");
     }
 }
diff --git a/keystore/java/android/security/LegacyVpnProfileStore.java b/keystore/java/android/security/LegacyVpnProfileStore.java
index 41cfb27..1d2738e 100644
--- a/keystore/java/android/security/LegacyVpnProfileStore.java
+++ b/keystore/java/android/security/LegacyVpnProfileStore.java
@@ -19,7 +19,6 @@
 import android.annotation.NonNull;
 import android.os.ServiceManager;
 import android.os.ServiceSpecificException;
-import android.security.keystore.AndroidKeyStoreProvider;
 import android.security.vpnprofilestore.IVpnProfileStore;
 import android.util.Log;
 
@@ -53,13 +52,8 @@
      */
     public static boolean put(@NonNull String alias, @NonNull byte[] profile) {
         try {
-            if (AndroidKeyStoreProvider.isKeystore2Enabled()) {
-                getService().put(alias, profile);
-                return true;
-            } else {
-                return KeyStore.getInstance().put(
-                        alias, profile, KeyStore.UID_SELF, 0);
-            }
+            getService().put(alias, profile);
+            return true;
         } catch (Exception e) {
             Log.e(TAG, "Failed to put vpn profile.", e);
             return false;
@@ -77,11 +71,7 @@
      */
     public static byte[] get(@NonNull String alias) {
         try {
-            if (AndroidKeyStoreProvider.isKeystore2Enabled()) {
-                return getService().get(alias);
-            } else {
-                return KeyStore.getInstance().get(alias, true /* suppressKeyNotFoundWarning */);
-            }
+            return getService().get(alias);
         } catch (ServiceSpecificException e) {
             if (e.errorCode != PROFILE_NOT_FOUND) {
                 Log.e(TAG, "Failed to get vpn profile.", e);
@@ -100,12 +90,8 @@
      */
     public static boolean remove(@NonNull String alias) {
         try {
-            if (AndroidKeyStoreProvider.isKeystore2Enabled()) {
-                getService().remove(alias);
-                return true;
-            } else {
-                return KeyStore.getInstance().delete(alias);
-            }
+            getService().remove(alias);
+            return true;
         } catch (ServiceSpecificException e) {
             if (e.errorCode != PROFILE_NOT_FOUND) {
                 Log.e(TAG, "Failed to remove vpn profile.", e);
@@ -124,16 +110,11 @@
      */
     public static @NonNull String[] list(@NonNull String prefix) {
         try {
-            if (AndroidKeyStoreProvider.isKeystore2Enabled()) {
-                final String[] aliases = getService().list(prefix);
-                for (int i = 0; i < aliases.length; ++i) {
-                    aliases[i] = aliases[i].substring(prefix.length());
-                }
-                return aliases;
-            } else {
-                final String[] result = KeyStore.getInstance().list(prefix);
-                return result != null ? result : new String[0];
+            final String[] aliases = getService().list(prefix);
+            for (int i = 0; i < aliases.length; ++i) {
+                aliases[i] = aliases[i].substring(prefix.length());
             }
+            return aliases;
         } catch (Exception e) {
             Log.e(TAG, "Failed to list vpn profiles.", e);
         }
diff --git a/keystore/java/android/security/keystore/AndroidKeyStore3DESCipherSpi.java b/keystore/java/android/security/keystore/AndroidKeyStore3DESCipherSpi.java
deleted file mode 100644
index 01fd062..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStore3DESCipherSpi.java
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * Copyright (C) 2018 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-
-import java.security.AlgorithmParameters;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.Key;
-import java.security.NoSuchAlgorithmException;
-import java.security.ProviderException;
-import java.security.spec.AlgorithmParameterSpec;
-import java.security.spec.InvalidParameterSpecException;
-import java.util.Arrays;
-
-import javax.crypto.CipherSpi;
-import javax.crypto.spec.IvParameterSpec;
-
-/**
- * Base class for Android Keystore 3DES {@link CipherSpi} implementations.
- *
- * @hide
- */
-public class AndroidKeyStore3DESCipherSpi extends AndroidKeyStoreCipherSpiBase {
-
-    private static final int BLOCK_SIZE_BYTES = 8;
-
-    private final int mKeymasterBlockMode;
-    private final int mKeymasterPadding;
-    /** Whether this transformation requires an IV. */
-    private final boolean mIvRequired;
-
-    private byte[] mIv;
-
-    /** Whether the current {@code #mIv} has been used by the underlying crypto operation. */
-    private boolean mIvHasBeenUsed;
-
-    AndroidKeyStore3DESCipherSpi(
-            int keymasterBlockMode,
-            int keymasterPadding,
-            boolean ivRequired) {
-        mKeymasterBlockMode = keymasterBlockMode;
-        mKeymasterPadding = keymasterPadding;
-        mIvRequired = ivRequired;
-    }
-
-    abstract static class ECB extends AndroidKeyStore3DESCipherSpi {
-        protected ECB(int keymasterPadding) {
-            super(KeymasterDefs.KM_MODE_ECB, keymasterPadding, false);
-        }
-
-        public static class NoPadding extends ECB {
-            public NoPadding() {
-                super(KeymasterDefs.KM_PAD_NONE);
-            }
-        }
-
-        public static class PKCS7Padding extends ECB {
-            public PKCS7Padding() {
-                super(KeymasterDefs.KM_PAD_PKCS7);
-            }
-        }
-    }
-
-    abstract static class CBC extends AndroidKeyStore3DESCipherSpi {
-        protected CBC(int keymasterPadding) {
-            super(KeymasterDefs.KM_MODE_CBC, keymasterPadding, true);
-        }
-
-        public static class NoPadding extends CBC {
-            public NoPadding() {
-                super(KeymasterDefs.KM_PAD_NONE);
-            }
-        }
-
-        public static class PKCS7Padding extends CBC {
-            public PKCS7Padding() {
-                super(KeymasterDefs.KM_PAD_PKCS7);
-            }
-        }
-    }
-
-    @Override
-    protected void initKey(int i, Key key) throws InvalidKeyException {
-        if (!(key instanceof AndroidKeyStoreSecretKey)) {
-            throw new InvalidKeyException(
-                    "Unsupported key: " + ((key != null) ? key.getClass().getName() : "null"));
-        }
-        if (!KeyProperties.KEY_ALGORITHM_3DES.equalsIgnoreCase(key.getAlgorithm())) {
-            throw new InvalidKeyException(
-                    "Unsupported key algorithm: " + key.getAlgorithm() + ". Only " +
-                            KeyProperties.KEY_ALGORITHM_3DES + " supported");
-        }
-        setKey((AndroidKeyStoreSecretKey) key);
-    }
-
-    @Override
-    protected int engineGetBlockSize() {
-        return BLOCK_SIZE_BYTES;
-    }
-
-    @Override
-    protected int engineGetOutputSize(int inputLen) {
-        return inputLen + 3 * BLOCK_SIZE_BYTES;
-    }
-
-    @Override
-    protected final byte[] engineGetIV() {
-        return ArrayUtils.cloneIfNotEmpty(mIv);
-    }
-
-    @Override
-    protected AlgorithmParameters engineGetParameters() {
-        if (!mIvRequired) {
-            return null;
-        }
-        if ((mIv != null) && (mIv.length > 0)) {
-            try {
-                AlgorithmParameters params = AlgorithmParameters.getInstance("DESede");
-                params.init(new IvParameterSpec(mIv));
-                return params;
-            } catch (NoSuchAlgorithmException e) {
-                throw new ProviderException(
-                        "Failed to obtain 3DES AlgorithmParameters", e);
-            } catch (InvalidParameterSpecException e) {
-                throw new ProviderException(
-                        "Failed to initialize 3DES AlgorithmParameters with an IV",
-                        e);
-            }
-        }
-        return null;
-    }
-
-    @Override
-    protected void initAlgorithmSpecificParameters() throws InvalidKeyException {
-        if (!mIvRequired) {
-            return;
-        }
-
-        // IV is used
-        if (!isEncrypting()) {
-            throw new InvalidKeyException("IV required when decrypting"
-                    + ". Use IvParameterSpec or AlgorithmParameters to provide it.");
-        }
-    }
-
-    @Override
-    protected void initAlgorithmSpecificParameters(AlgorithmParameterSpec params)
-            throws InvalidAlgorithmParameterException {
-        if (!mIvRequired) {
-            if (params != null) {
-                throw new InvalidAlgorithmParameterException("Unsupported parameters: " + params);
-            }
-            return;
-        }
-
-        // IV is used
-        if (params == null) {
-            if (!isEncrypting()) {
-                // IV must be provided by the caller
-                throw new InvalidAlgorithmParameterException(
-                        "IvParameterSpec must be provided when decrypting");
-            }
-            return;
-        }
-        if (!(params instanceof IvParameterSpec)) {
-            throw new InvalidAlgorithmParameterException("Only IvParameterSpec supported");
-        }
-        mIv = ((IvParameterSpec) params).getIV();
-        if (mIv == null) {
-            throw new InvalidAlgorithmParameterException("Null IV in IvParameterSpec");
-        }
-    }
-
-    @Override
-    protected void initAlgorithmSpecificParameters(AlgorithmParameters params)
-            throws InvalidAlgorithmParameterException {
-        if (!mIvRequired) {
-            if (params != null) {
-                throw new InvalidAlgorithmParameterException("Unsupported parameters: " + params);
-            }
-            return;
-        }
-
-        // IV is used
-        if (params == null) {
-            if (!isEncrypting()) {
-                // IV must be provided by the caller
-                throw new InvalidAlgorithmParameterException("IV required when decrypting"
-                        + ". Use IvParameterSpec or AlgorithmParameters to provide it.");
-            }
-            return;
-        }
-
-        if (!"DESede".equalsIgnoreCase(params.getAlgorithm())) {
-            throw new InvalidAlgorithmParameterException(
-                    "Unsupported AlgorithmParameters algorithm: " + params.getAlgorithm()
-                            + ". Supported: DESede");
-        }
-
-        IvParameterSpec ivSpec;
-        try {
-            ivSpec = params.getParameterSpec(IvParameterSpec.class);
-        } catch (InvalidParameterSpecException e) {
-            if (!isEncrypting()) {
-                // IV must be provided by the caller
-                throw new InvalidAlgorithmParameterException("IV required when decrypting"
-                        + ", but not found in parameters: " + params, e);
-            }
-            mIv = null;
-            return;
-        }
-        mIv = ivSpec.getIV();
-        if (mIv == null) {
-            throw new InvalidAlgorithmParameterException("Null IV in AlgorithmParameters");
-        }
-    }
-
-    @Override
-    protected final int getAdditionalEntropyAmountForBegin() {
-        if ((mIvRequired) && (mIv == null) && (isEncrypting())) {
-            // IV will need to be generated
-            return BLOCK_SIZE_BYTES;
-        }
-
-        return 0;
-    }
-
-    @Override
-    protected int getAdditionalEntropyAmountForFinish() {
-        return 0;
-    }
-
-    @Override
-    protected void addAlgorithmSpecificParametersToBegin(KeymasterArguments keymasterArgs) {
-        if ((isEncrypting()) && (mIvRequired) && (mIvHasBeenUsed)) {
-            // IV is being reused for encryption: this violates security best practices.
-            throw new IllegalStateException(
-                    "IV has already been used. Reusing IV in encryption mode violates security best"
-                            + " practices.");
-        }
-
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, KeymasterDefs.KM_ALGORITHM_3DES);
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_BLOCK_MODE, mKeymasterBlockMode);
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_PADDING, mKeymasterPadding);
-        if ((mIvRequired) && (mIv != null)) {
-            keymasterArgs.addBytes(KeymasterDefs.KM_TAG_NONCE, mIv);
-        }
-    }
-
-    @Override
-    protected void loadAlgorithmSpecificParametersFromBeginResult(
-            KeymasterArguments keymasterArgs) {
-        mIvHasBeenUsed = true;
-
-        // NOTE: Keymaster doesn't always return an IV, even if it's used.
-        byte[] returnedIv = keymasterArgs.getBytes(KeymasterDefs.KM_TAG_NONCE, null);
-        if ((returnedIv != null) && (returnedIv.length == 0)) {
-            returnedIv = null;
-        }
-
-        if (mIvRequired) {
-            if (mIv == null) {
-                mIv = returnedIv;
-            } else if ((returnedIv != null) && (!Arrays.equals(returnedIv, mIv))) {
-                throw new ProviderException("IV in use differs from provided IV");
-            }
-        } else {
-            if (returnedIv != null) {
-                throw new ProviderException(
-                        "IV in use despite IV not being used by this transformation");
-            }
-        }
-    }
-
-    @Override
-    protected final void resetAll() {
-        mIv = null;
-        mIvHasBeenUsed = false;
-        super.resetAll();
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreAuthenticatedAESCipherSpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreAuthenticatedAESCipherSpi.java
deleted file mode 100644
index feb6101..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreAuthenticatedAESCipherSpi.java
+++ /dev/null
@@ -1,449 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.os.IBinder;
-import android.security.KeyStore;
-import android.security.KeyStoreException;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-import android.security.keymaster.OperationResult;
-import android.security.keystore.KeyStoreCryptoOperationChunkedStreamer.Stream;
-
-import libcore.util.EmptyArray;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.security.AlgorithmParameters;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.Key;
-import java.security.NoSuchAlgorithmException;
-import java.security.ProviderException;
-import java.security.spec.AlgorithmParameterSpec;
-import java.security.spec.InvalidParameterSpecException;
-import java.util.Arrays;
-
-import javax.crypto.CipherSpi;
-import javax.crypto.spec.GCMParameterSpec;
-
-/**
- * Base class for Android Keystore authenticated AES {@link CipherSpi} implementations.
- *
- * @hide
- */
-abstract class AndroidKeyStoreAuthenticatedAESCipherSpi extends AndroidKeyStoreCipherSpiBase {
-
-    abstract static class GCM extends AndroidKeyStoreAuthenticatedAESCipherSpi {
-        static final int MIN_SUPPORTED_TAG_LENGTH_BITS = 96;
-        private static final int MAX_SUPPORTED_TAG_LENGTH_BITS = 128;
-        private static final int DEFAULT_TAG_LENGTH_BITS = 128;
-        private static final int IV_LENGTH_BYTES = 12;
-
-        private int mTagLengthBits = DEFAULT_TAG_LENGTH_BITS;
-
-        GCM(int keymasterPadding) {
-            super(KeymasterDefs.KM_MODE_GCM, keymasterPadding);
-        }
-
-        @Override
-        protected final void resetAll() {
-            mTagLengthBits = DEFAULT_TAG_LENGTH_BITS;
-            super.resetAll();
-        }
-
-        @Override
-        protected final void resetWhilePreservingInitState() {
-            super.resetWhilePreservingInitState();
-        }
-
-        @Override
-        protected final void initAlgorithmSpecificParameters() throws InvalidKeyException {
-            if (!isEncrypting()) {
-                throw new InvalidKeyException("IV required when decrypting"
-                        + ". Use IvParameterSpec or AlgorithmParameters to provide it.");
-            }
-        }
-
-        @Override
-        protected final void initAlgorithmSpecificParameters(AlgorithmParameterSpec params)
-                throws InvalidAlgorithmParameterException {
-            // IV is used
-            if (params == null) {
-                if (!isEncrypting()) {
-                    // IV must be provided by the caller
-                    throw new InvalidAlgorithmParameterException(
-                            "GCMParameterSpec must be provided when decrypting");
-                }
-                return;
-            }
-            if (!(params instanceof GCMParameterSpec)) {
-                throw new InvalidAlgorithmParameterException("Only GCMParameterSpec supported");
-            }
-            GCMParameterSpec spec = (GCMParameterSpec) params;
-            byte[] iv = spec.getIV();
-            if (iv == null) {
-                throw new InvalidAlgorithmParameterException("Null IV in GCMParameterSpec");
-            } else if (iv.length != IV_LENGTH_BYTES) {
-                throw new InvalidAlgorithmParameterException("Unsupported IV length: "
-                        + iv.length + " bytes. Only " + IV_LENGTH_BYTES
-                        + " bytes long IV supported");
-            }
-            int tagLengthBits = spec.getTLen();
-            if ((tagLengthBits < MIN_SUPPORTED_TAG_LENGTH_BITS)
-                    || (tagLengthBits > MAX_SUPPORTED_TAG_LENGTH_BITS)
-                    || ((tagLengthBits % 8) != 0)) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unsupported tag length: " + tagLengthBits + " bits"
-                        + ". Supported lengths: 96, 104, 112, 120, 128");
-            }
-            setIv(iv);
-            mTagLengthBits = tagLengthBits;
-        }
-
-        @Override
-        protected final void initAlgorithmSpecificParameters(AlgorithmParameters params)
-                throws InvalidAlgorithmParameterException {
-            if (params == null) {
-                if (!isEncrypting()) {
-                    // IV must be provided by the caller
-                    throw new InvalidAlgorithmParameterException("IV required when decrypting"
-                            + ". Use GCMParameterSpec or GCM AlgorithmParameters to provide it.");
-                }
-                return;
-            }
-
-            if (!"GCM".equalsIgnoreCase(params.getAlgorithm())) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unsupported AlgorithmParameters algorithm: " + params.getAlgorithm()
-                        + ". Supported: GCM");
-            }
-
-            GCMParameterSpec spec;
-            try {
-                spec = params.getParameterSpec(GCMParameterSpec.class);
-            } catch (InvalidParameterSpecException e) {
-                if (!isEncrypting()) {
-                    // IV must be provided by the caller
-                    throw new InvalidAlgorithmParameterException("IV and tag length required when"
-                            + " decrypting, but not found in parameters: " + params, e);
-                }
-                setIv(null);
-                return;
-            }
-            initAlgorithmSpecificParameters(spec);
-        }
-
-        @Nullable
-        @Override
-        protected final AlgorithmParameters engineGetParameters() {
-            byte[] iv = getIv();
-            if ((iv != null) && (iv.length > 0)) {
-                try {
-                    AlgorithmParameters params = AlgorithmParameters.getInstance("GCM");
-                    params.init(new GCMParameterSpec(mTagLengthBits, iv));
-                    return params;
-                } catch (NoSuchAlgorithmException e) {
-                    throw new ProviderException(
-                            "Failed to obtain GCM AlgorithmParameters", e);
-                } catch (InvalidParameterSpecException e) {
-                    throw new ProviderException(
-                            "Failed to initialize GCM AlgorithmParameters", e);
-                }
-            }
-            return null;
-        }
-
-        @NonNull
-        @Override
-        protected KeyStoreCryptoOperationStreamer createMainDataStreamer(
-                KeyStore keyStore, IBinder operationToken) {
-            KeyStoreCryptoOperationStreamer streamer = new KeyStoreCryptoOperationChunkedStreamer(
-                    new KeyStoreCryptoOperationChunkedStreamer.MainDataStream(
-                            keyStore, operationToken), 0);
-            if (isEncrypting()) {
-                return streamer;
-            } else {
-                // When decrypting, to avoid leaking unauthenticated plaintext, do not return any
-                // plaintext before ciphertext is authenticated by KeyStore.finish.
-                return new BufferAllOutputUntilDoFinalStreamer(streamer);
-            }
-        }
-
-        @NonNull
-        @Override
-        protected final KeyStoreCryptoOperationStreamer createAdditionalAuthenticationDataStreamer(
-                KeyStore keyStore, IBinder operationToken) {
-            return new KeyStoreCryptoOperationChunkedStreamer(
-                    new AdditionalAuthenticationDataStream(keyStore, operationToken), 0);
-        }
-
-        @Override
-        protected final int getAdditionalEntropyAmountForBegin() {
-            if ((getIv() == null) && (isEncrypting())) {
-                // IV will need to be generated
-                return IV_LENGTH_BYTES;
-            }
-
-            return 0;
-        }
-
-        @Override
-        protected final int getAdditionalEntropyAmountForFinish() {
-            return 0;
-        }
-
-        @Override
-        protected final void addAlgorithmSpecificParametersToBegin(
-                @NonNull KeymasterArguments keymasterArgs) {
-            super.addAlgorithmSpecificParametersToBegin(keymasterArgs);
-            keymasterArgs.addUnsignedInt(KeymasterDefs.KM_TAG_MAC_LENGTH, mTagLengthBits);
-        }
-
-        protected final int getTagLengthBits() {
-            return mTagLengthBits;
-        }
-
-        public static final class NoPadding extends GCM {
-            public NoPadding() {
-                super(KeymasterDefs.KM_PAD_NONE);
-            }
-
-            @Override
-            protected final int engineGetOutputSize(int inputLen) {
-                int tagLengthBytes = (getTagLengthBits() + 7) / 8;
-                long result;
-                if (isEncrypting()) {
-                    result = getConsumedInputSizeBytes() - getProducedOutputSizeBytes() + inputLen
-                            + tagLengthBytes;
-                } else {
-                    result = getConsumedInputSizeBytes() - getProducedOutputSizeBytes() + inputLen
-                            - tagLengthBytes;
-                }
-                if (result < 0) {
-                    return 0;
-                } else if (result > Integer.MAX_VALUE) {
-                    return Integer.MAX_VALUE;
-                }
-                return (int) result;
-            }
-        }
-    }
-
-    private static final int BLOCK_SIZE_BYTES = 16;
-
-    private final int mKeymasterBlockMode;
-    private final int mKeymasterPadding;
-
-    private byte[] mIv;
-
-    /** Whether the current {@code #mIv} has been used by the underlying crypto operation. */
-    private boolean mIvHasBeenUsed;
-
-    AndroidKeyStoreAuthenticatedAESCipherSpi(
-            int keymasterBlockMode,
-            int keymasterPadding) {
-        mKeymasterBlockMode = keymasterBlockMode;
-        mKeymasterPadding = keymasterPadding;
-    }
-
-    @Override
-    protected void resetAll() {
-        mIv = null;
-        mIvHasBeenUsed = false;
-        super.resetAll();
-    }
-
-    @Override
-    protected final void initKey(int opmode, Key key) throws InvalidKeyException {
-        if (!(key instanceof AndroidKeyStoreSecretKey)) {
-            throw new InvalidKeyException(
-                    "Unsupported key: " + ((key != null) ? key.getClass().getName() : "null"));
-        }
-        if (!KeyProperties.KEY_ALGORITHM_AES.equalsIgnoreCase(key.getAlgorithm())) {
-            throw new InvalidKeyException(
-                    "Unsupported key algorithm: " + key.getAlgorithm() + ". Only " +
-                    KeyProperties.KEY_ALGORITHM_AES + " supported");
-        }
-        setKey((AndroidKeyStoreSecretKey) key);
-    }
-
-    @Override
-    protected void addAlgorithmSpecificParametersToBegin(
-            @NonNull KeymasterArguments keymasterArgs) {
-        if ((isEncrypting()) && (mIvHasBeenUsed)) {
-            // IV is being reused for encryption: this violates security best practices.
-            throw new IllegalStateException(
-                    "IV has already been used. Reusing IV in encryption mode violates security best"
-                    + " practices.");
-        }
-
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, KeymasterDefs.KM_ALGORITHM_AES);
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_BLOCK_MODE, mKeymasterBlockMode);
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_PADDING, mKeymasterPadding);
-        if (mIv != null) {
-            keymasterArgs.addBytes(KeymasterDefs.KM_TAG_NONCE, mIv);
-        }
-    }
-
-    @Override
-    protected final void loadAlgorithmSpecificParametersFromBeginResult(
-            @NonNull KeymasterArguments keymasterArgs) {
-        mIvHasBeenUsed = true;
-
-        // NOTE: Keymaster doesn't always return an IV, even if it's used.
-        byte[] returnedIv = keymasterArgs.getBytes(KeymasterDefs.KM_TAG_NONCE, null);
-        if ((returnedIv != null) && (returnedIv.length == 0)) {
-            returnedIv = null;
-        }
-
-        if (mIv == null) {
-            mIv = returnedIv;
-        } else if ((returnedIv != null) && (!Arrays.equals(returnedIv, mIv))) {
-            throw new ProviderException("IV in use differs from provided IV");
-        }
-    }
-
-    @Override
-    protected final int engineGetBlockSize() {
-        return BLOCK_SIZE_BYTES;
-    }
-
-    @Override
-    protected final byte[] engineGetIV() {
-        return ArrayUtils.cloneIfNotEmpty(mIv);
-    }
-
-    protected void setIv(byte[] iv) {
-        mIv = iv;
-    }
-
-    protected byte[] getIv() {
-        return mIv;
-    }
-
-    /**
-     * {@link KeyStoreCryptoOperationStreamer} which buffers all output until {@code doFinal} from
-     * which it returns all output in one go, provided {@code doFinal} succeeds.
-     */
-    private static class BufferAllOutputUntilDoFinalStreamer
-        implements KeyStoreCryptoOperationStreamer {
-
-        private final KeyStoreCryptoOperationStreamer mDelegate;
-        private ByteArrayOutputStream mBufferedOutput = new ByteArrayOutputStream();
-        private long mProducedOutputSizeBytes;
-
-        private BufferAllOutputUntilDoFinalStreamer(KeyStoreCryptoOperationStreamer delegate) {
-            mDelegate = delegate;
-        }
-
-        @Override
-        public byte[] update(byte[] input, int inputOffset, int inputLength)
-                throws KeyStoreException {
-            byte[] output = mDelegate.update(input, inputOffset, inputLength);
-            if (output != null) {
-                try {
-                    mBufferedOutput.write(output);
-                } catch (IOException e) {
-                    throw new ProviderException("Failed to buffer output", e);
-                }
-            }
-            return EmptyArray.BYTE;
-        }
-
-        @Override
-        public byte[] doFinal(byte[] input, int inputOffset, int inputLength,
-                byte[] signature, byte[] additionalEntropy) throws KeyStoreException {
-            byte[] output = mDelegate.doFinal(input, inputOffset, inputLength, signature,
-                    additionalEntropy);
-            if (output != null) {
-                try {
-                    mBufferedOutput.write(output);
-                } catch (IOException e) {
-                    throw new ProviderException("Failed to buffer output", e);
-                }
-            }
-            byte[] result = mBufferedOutput.toByteArray();
-            mBufferedOutput.reset();
-            mProducedOutputSizeBytes += result.length;
-            return result;
-        }
-
-        @Override
-        public long getConsumedInputSizeBytes() {
-            return mDelegate.getConsumedInputSizeBytes();
-        }
-
-        @Override
-        public long getProducedOutputSizeBytes() {
-            return mProducedOutputSizeBytes;
-        }
-    }
-
-    /**
-     * Additional Authentication Data (AAD) stream via a KeyStore streaming operation. This stream
-     * sends AAD into the KeyStore.
-     */
-    private static class AdditionalAuthenticationDataStream implements Stream {
-
-        private final KeyStore mKeyStore;
-        private final IBinder mOperationToken;
-
-        private AdditionalAuthenticationDataStream(KeyStore keyStore, IBinder operationToken) {
-            mKeyStore = keyStore;
-            mOperationToken = operationToken;
-        }
-
-        @Override
-        public OperationResult update(byte[] input) {
-            KeymasterArguments keymasterArgs = new KeymasterArguments();
-            keymasterArgs.addBytes(KeymasterDefs.KM_TAG_ASSOCIATED_DATA, input);
-
-            // KeyStore does not reflect AAD in inputConsumed, but users of Stream rely on this
-            // field. We fix this discrepancy here. KeyStore.update contract is that all of AAD
-            // has been consumed if the method succeeds.
-            OperationResult result = mKeyStore.update(mOperationToken, keymasterArgs, null);
-            if (result.resultCode == KeyStore.NO_ERROR) {
-                result = new OperationResult(
-                        result.resultCode,
-                        result.token,
-                        result.operationHandle,
-                        input.length, // inputConsumed
-                        result.output,
-                        result.outParams);
-            }
-            return result;
-        }
-
-        @Override
-        public OperationResult finish(byte[] input, byte[] signature, byte[] additionalEntropy) {
-            if ((additionalEntropy != null) && (additionalEntropy.length > 0)) {
-                throw new ProviderException("AAD stream does not support additional entropy");
-            }
-            return new OperationResult(
-                    KeyStore.NO_ERROR,
-                    mOperationToken,
-                    0, // operation handle -- nobody cares about this being returned from finish
-                    0, // inputConsumed
-                    EmptyArray.BYTE, // output
-                    new KeymasterArguments() // additional params returned by finish
-                    );
-        }
-    }
-}
\ No newline at end of file
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreBCWorkaroundProvider.java b/keystore/java/android/security/keystore/AndroidKeyStoreBCWorkaroundProvider.java
deleted file mode 100644
index 5730234..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreBCWorkaroundProvider.java
+++ /dev/null
@@ -1,279 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import java.security.Provider;
-
-/**
- * {@link Provider} of JCA crypto operations operating on Android KeyStore keys.
- *
- * <p>This provider was separated out of {@link AndroidKeyStoreProvider} to work around the issue
- * that Bouncy Castle provider incorrectly declares that it accepts arbitrary keys (incl. Android
- * KeyStore ones). This causes JCA to select the Bouncy Castle's implementation of JCA crypto
- * operations for Android KeyStore keys unless Android KeyStore's own implementations are installed
- * as higher-priority than Bouncy Castle ones. The purpose of this provider is to do just that: to
- * offer crypto operations operating on Android KeyStore keys and to be installed at higher priority
- * than the Bouncy Castle provider.
- *
- * <p>Once Bouncy Castle provider is fixed, this provider can be merged into the
- * {@code AndroidKeyStoreProvider}.
- *
- * @hide
- */
-public class AndroidKeyStoreBCWorkaroundProvider extends Provider {
-
-    // IMPLEMENTATION NOTE: Class names are hard-coded in this provider to avoid loading these
-    // classes when this provider is instantiated and installed early on during each app's
-    // initialization process.
-
-    private static final String PACKAGE_NAME = "android.security.keystore";
-    private static final String KEYSTORE_SECRET_KEY_CLASS_NAME =
-            PACKAGE_NAME + ".AndroidKeyStoreSecretKey";
-    private static final String KEYSTORE_PRIVATE_KEY_CLASS_NAME =
-            PACKAGE_NAME + ".AndroidKeyStorePrivateKey";
-    private static final String KEYSTORE_PUBLIC_KEY_CLASS_NAME =
-            PACKAGE_NAME + ".AndroidKeyStorePublicKey";
-
-    private static final String DESEDE_SYSTEM_PROPERTY = "ro.hardware.keystore_desede";
-
-    /** @hide */
-    public AndroidKeyStoreBCWorkaroundProvider() {
-        this("AndroidKeyStoreBCWorkaround");
-    }
-
-    /** @hide **/
-    public AndroidKeyStoreBCWorkaroundProvider(String providerName) {
-        super(providerName,
-                1.0,
-                "Android KeyStore security provider to work around Bouncy Castle");
-
-        // --------------------- javax.crypto.Mac
-        putMacImpl("HmacSHA1", PACKAGE_NAME + ".AndroidKeyStoreHmacSpi$HmacSHA1");
-        put("Alg.Alias.Mac.1.2.840.113549.2.7", "HmacSHA1");
-        put("Alg.Alias.Mac.HMAC-SHA1", "HmacSHA1");
-        put("Alg.Alias.Mac.HMAC/SHA1", "HmacSHA1");
-
-        putMacImpl("HmacSHA224", PACKAGE_NAME + ".AndroidKeyStoreHmacSpi$HmacSHA224");
-        put("Alg.Alias.Mac.1.2.840.113549.2.9", "HmacSHA224");
-        put("Alg.Alias.Mac.HMAC-SHA224", "HmacSHA224");
-        put("Alg.Alias.Mac.HMAC/SHA224", "HmacSHA224");
-
-        putMacImpl("HmacSHA256", PACKAGE_NAME + ".AndroidKeyStoreHmacSpi$HmacSHA256");
-        put("Alg.Alias.Mac.1.2.840.113549.2.9", "HmacSHA256");
-        put("Alg.Alias.Mac.HMAC-SHA256", "HmacSHA256");
-        put("Alg.Alias.Mac.HMAC/SHA256", "HmacSHA256");
-
-        putMacImpl("HmacSHA384", PACKAGE_NAME + ".AndroidKeyStoreHmacSpi$HmacSHA384");
-        put("Alg.Alias.Mac.1.2.840.113549.2.10", "HmacSHA384");
-        put("Alg.Alias.Mac.HMAC-SHA384", "HmacSHA384");
-        put("Alg.Alias.Mac.HMAC/SHA384", "HmacSHA384");
-
-        putMacImpl("HmacSHA512", PACKAGE_NAME + ".AndroidKeyStoreHmacSpi$HmacSHA512");
-        put("Alg.Alias.Mac.1.2.840.113549.2.11", "HmacSHA512");
-        put("Alg.Alias.Mac.HMAC-SHA512", "HmacSHA512");
-        put("Alg.Alias.Mac.HMAC/SHA512", "HmacSHA512");
-
-        // --------------------- javax.crypto.Cipher
-        putSymmetricCipherImpl("AES/ECB/NoPadding",
-                PACKAGE_NAME + ".AndroidKeyStoreUnauthenticatedAESCipherSpi$ECB$NoPadding");
-        putSymmetricCipherImpl("AES/ECB/PKCS7Padding",
-                PACKAGE_NAME + ".AndroidKeyStoreUnauthenticatedAESCipherSpi$ECB$PKCS7Padding");
-
-        putSymmetricCipherImpl("AES/CBC/NoPadding",
-                PACKAGE_NAME + ".AndroidKeyStoreUnauthenticatedAESCipherSpi$CBC$NoPadding");
-        putSymmetricCipherImpl("AES/CBC/PKCS7Padding",
-                PACKAGE_NAME + ".AndroidKeyStoreUnauthenticatedAESCipherSpi$CBC$PKCS7Padding");
-
-        putSymmetricCipherImpl("AES/CTR/NoPadding",
-                PACKAGE_NAME + ".AndroidKeyStoreUnauthenticatedAESCipherSpi$CTR$NoPadding");
-
-        if ("true".equals(android.os.SystemProperties.get(DESEDE_SYSTEM_PROPERTY))) {
-            putSymmetricCipherImpl("DESede/CBC/NoPadding",
-                PACKAGE_NAME + ".AndroidKeyStore3DESCipherSpi$CBC$NoPadding");
-            putSymmetricCipherImpl("DESede/CBC/PKCS7Padding",
-                PACKAGE_NAME + ".AndroidKeyStore3DESCipherSpi$CBC$PKCS7Padding");
-
-            putSymmetricCipherImpl("DESede/ECB/NoPadding",
-                PACKAGE_NAME + ".AndroidKeyStore3DESCipherSpi$ECB$NoPadding");
-            putSymmetricCipherImpl("DESede/ECB/PKCS7Padding",
-                PACKAGE_NAME + ".AndroidKeyStore3DESCipherSpi$ECB$PKCS7Padding");
-        }
-
-        putSymmetricCipherImpl("AES/GCM/NoPadding",
-                PACKAGE_NAME + ".AndroidKeyStoreAuthenticatedAESCipherSpi$GCM$NoPadding");
-
-        putAsymmetricCipherImpl("RSA/ECB/NoPadding",
-                PACKAGE_NAME + ".AndroidKeyStoreRSACipherSpi$NoPadding");
-        put("Alg.Alias.Cipher.RSA/None/NoPadding", "RSA/ECB/NoPadding");
-        putAsymmetricCipherImpl("RSA/ECB/PKCS1Padding",
-                PACKAGE_NAME + ".AndroidKeyStoreRSACipherSpi$PKCS1Padding");
-        put("Alg.Alias.Cipher.RSA/None/PKCS1Padding", "RSA/ECB/PKCS1Padding");
-        putAsymmetricCipherImpl("RSA/ECB/OAEPPadding",
-                PACKAGE_NAME + ".AndroidKeyStoreRSACipherSpi$OAEPWithSHA1AndMGF1Padding");
-        put("Alg.Alias.Cipher.RSA/None/OAEPPadding", "RSA/ECB/OAEPPadding");
-        putAsymmetricCipherImpl("RSA/ECB/OAEPWithSHA-1AndMGF1Padding",
-                PACKAGE_NAME + ".AndroidKeyStoreRSACipherSpi$OAEPWithSHA1AndMGF1Padding");
-        put("Alg.Alias.Cipher.RSA/None/OAEPWithSHA-1AndMGF1Padding",
-                "RSA/ECB/OAEPWithSHA-1AndMGF1Padding");
-        putAsymmetricCipherImpl("RSA/ECB/OAEPWithSHA-224AndMGF1Padding",
-                PACKAGE_NAME + ".AndroidKeyStoreRSACipherSpi$OAEPWithSHA224AndMGF1Padding");
-        put("Alg.Alias.Cipher.RSA/None/OAEPWithSHA-224AndMGF1Padding",
-                "RSA/ECB/OAEPWithSHA-256AndMGF1Padding");
-        putAsymmetricCipherImpl("RSA/ECB/OAEPWithSHA-256AndMGF1Padding",
-                PACKAGE_NAME + ".AndroidKeyStoreRSACipherSpi$OAEPWithSHA256AndMGF1Padding");
-        put("Alg.Alias.Cipher.RSA/None/OAEPWithSHA-256AndMGF1Padding",
-                "RSA/ECB/OAEPWithSHA-256AndMGF1Padding");
-        putAsymmetricCipherImpl("RSA/ECB/OAEPWithSHA-384AndMGF1Padding",
-                PACKAGE_NAME + ".AndroidKeyStoreRSACipherSpi$OAEPWithSHA384AndMGF1Padding");
-        put("Alg.Alias.Cipher.RSA/None/OAEPWithSHA-384AndMGF1Padding",
-                "RSA/ECB/OAEPWithSHA-384AndMGF1Padding");
-        putAsymmetricCipherImpl("RSA/ECB/OAEPWithSHA-512AndMGF1Padding",
-                PACKAGE_NAME + ".AndroidKeyStoreRSACipherSpi$OAEPWithSHA512AndMGF1Padding");
-        put("Alg.Alias.Cipher.RSA/None/OAEPWithSHA-512AndMGF1Padding",
-                "RSA/ECB/OAEPWithSHA-512AndMGF1Padding");
-
-        // --------------------- java.security.Signature
-        putSignatureImpl("NONEwithRSA",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$NONEWithPKCS1Padding");
-
-        putSignatureImpl("MD5withRSA",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$MD5WithPKCS1Padding");
-        put("Alg.Alias.Signature.MD5WithRSAEncryption", "MD5withRSA");
-        put("Alg.Alias.Signature.MD5/RSA", "MD5withRSA");
-        put("Alg.Alias.Signature.1.2.840.113549.1.1.4", "MD5withRSA");
-        put("Alg.Alias.Signature.1.2.840.113549.2.5with1.2.840.113549.1.1.1", "MD5withRSA");
-
-        putSignatureImpl("SHA1withRSA",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$SHA1WithPKCS1Padding");
-        put("Alg.Alias.Signature.SHA1WithRSAEncryption", "SHA1withRSA");
-        put("Alg.Alias.Signature.SHA1/RSA", "SHA1withRSA");
-        put("Alg.Alias.Signature.SHA-1/RSA", "SHA1withRSA");
-        put("Alg.Alias.Signature.1.2.840.113549.1.1.5", "SHA1withRSA");
-        put("Alg.Alias.Signature.1.3.14.3.2.26with1.2.840.113549.1.1.1", "SHA1withRSA");
-        put("Alg.Alias.Signature.1.3.14.3.2.26with1.2.840.113549.1.1.5", "SHA1withRSA");
-        put("Alg.Alias.Signature.1.3.14.3.2.29", "SHA1withRSA");
-
-        putSignatureImpl("SHA224withRSA",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$SHA224WithPKCS1Padding");
-        put("Alg.Alias.Signature.SHA224WithRSAEncryption", "SHA224withRSA");
-        put("Alg.Alias.Signature.1.2.840.113549.1.1.11", "SHA224withRSA");
-        put("Alg.Alias.Signature.2.16.840.1.101.3.4.2.4with1.2.840.113549.1.1.1",
-                "SHA224withRSA");
-        put("Alg.Alias.Signature.2.16.840.1.101.3.4.2.4with1.2.840.113549.1.1.11",
-                "SHA224withRSA");
-
-        putSignatureImpl("SHA256withRSA",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$SHA256WithPKCS1Padding");
-        put("Alg.Alias.Signature.SHA256WithRSAEncryption", "SHA256withRSA");
-        put("Alg.Alias.Signature.1.2.840.113549.1.1.11", "SHA256withRSA");
-        put("Alg.Alias.Signature.2.16.840.1.101.3.4.2.1with1.2.840.113549.1.1.1",
-                "SHA256withRSA");
-        put("Alg.Alias.Signature.2.16.840.1.101.3.4.2.1with1.2.840.113549.1.1.11",
-                "SHA256withRSA");
-
-        putSignatureImpl("SHA384withRSA",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$SHA384WithPKCS1Padding");
-        put("Alg.Alias.Signature.SHA384WithRSAEncryption", "SHA384withRSA");
-        put("Alg.Alias.Signature.1.2.840.113549.1.1.12", "SHA384withRSA");
-        put("Alg.Alias.Signature.2.16.840.1.101.3.4.2.2with1.2.840.113549.1.1.1",
-                "SHA384withRSA");
-
-        putSignatureImpl("SHA512withRSA",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$SHA512WithPKCS1Padding");
-        put("Alg.Alias.Signature.SHA512WithRSAEncryption", "SHA512withRSA");
-        put("Alg.Alias.Signature.1.2.840.113549.1.1.13", "SHA512withRSA");
-        put("Alg.Alias.Signature.2.16.840.1.101.3.4.2.3with1.2.840.113549.1.1.1",
-                "SHA512withRSA");
-
-        putSignatureImpl("SHA1withRSA/PSS",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$SHA1WithPSSPadding");
-        putSignatureImpl("SHA224withRSA/PSS",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$SHA224WithPSSPadding");
-        putSignatureImpl("SHA256withRSA/PSS",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$SHA256WithPSSPadding");
-        putSignatureImpl("SHA384withRSA/PSS",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$SHA384WithPSSPadding");
-        putSignatureImpl("SHA512withRSA/PSS",
-                PACKAGE_NAME + ".AndroidKeyStoreRSASignatureSpi$SHA512WithPSSPadding");
-
-        putSignatureImpl("NONEwithECDSA",
-                PACKAGE_NAME + ".AndroidKeyStoreECDSASignatureSpi$NONE");
-
-        putSignatureImpl("SHA1withECDSA", PACKAGE_NAME + ".AndroidKeyStoreECDSASignatureSpi$SHA1");
-        put("Alg.Alias.Signature.ECDSA", "SHA1withECDSA");
-        put("Alg.Alias.Signature.ECDSAwithSHA1", "SHA1withECDSA");
-        // iso(1) member-body(2) us(840) ansi-x962(10045) signatures(4) ecdsa-with-SHA1(1)
-        put("Alg.Alias.Signature.1.2.840.10045.4.1", "SHA1withECDSA");
-        put("Alg.Alias.Signature.1.3.14.3.2.26with1.2.840.10045.2.1", "SHA1withECDSA");
-
-        // iso(1) member-body(2) us(840) ansi-x962(10045) signatures(4) ecdsa-with-SHA2(3)
-        putSignatureImpl("SHA224withECDSA",
-                PACKAGE_NAME + ".AndroidKeyStoreECDSASignatureSpi$SHA224");
-        // ecdsa-with-SHA224(1)
-        put("Alg.Alias.Signature.1.2.840.10045.4.3.1", "SHA224withECDSA");
-        put("Alg.Alias.Signature.2.16.840.1.101.3.4.2.4with1.2.840.10045.2.1", "SHA224withECDSA");
-
-        // iso(1) member-body(2) us(840) ansi-x962(10045) signatures(4) ecdsa-with-SHA2(3)
-        putSignatureImpl("SHA256withECDSA",
-                PACKAGE_NAME + ".AndroidKeyStoreECDSASignatureSpi$SHA256");
-        // ecdsa-with-SHA256(2)
-        put("Alg.Alias.Signature.1.2.840.10045.4.3.2", "SHA256withECDSA");
-        put("Alg.Alias.Signature.2.16.840.1.101.3.4.2.1with1.2.840.10045.2.1", "SHA256withECDSA");
-
-        putSignatureImpl("SHA384withECDSA",
-                PACKAGE_NAME + ".AndroidKeyStoreECDSASignatureSpi$SHA384");
-        // ecdsa-with-SHA384(3)
-        put("Alg.Alias.Signature.1.2.840.10045.4.3.3", "SHA384withECDSA");
-        put("Alg.Alias.Signature.2.16.840.1.101.3.4.2.2with1.2.840.10045.2.1", "SHA384withECDSA");
-
-        putSignatureImpl("SHA512withECDSA",
-                PACKAGE_NAME + ".AndroidKeyStoreECDSASignatureSpi$SHA512");
-        // ecdsa-with-SHA512(4)
-        put("Alg.Alias.Signature.1.2.840.10045.4.3.4", "SHA512withECDSA");
-        put("Alg.Alias.Signature.2.16.840.1.101.3.4.2.3with1.2.840.10045.2.1", "SHA512withECDSA");
-    }
-
-    private void putMacImpl(String algorithm, String implClass) {
-        put("Mac." + algorithm, implClass);
-        put("Mac." + algorithm + " SupportedKeyClasses", KEYSTORE_SECRET_KEY_CLASS_NAME);
-    }
-
-    private void putSymmetricCipherImpl(String transformation, String implClass) {
-        put("Cipher." + transformation, implClass);
-        put("Cipher." + transformation + " SupportedKeyClasses", KEYSTORE_SECRET_KEY_CLASS_NAME);
-    }
-
-    private void putAsymmetricCipherImpl(String transformation, String implClass) {
-        put("Cipher." + transformation, implClass);
-        put("Cipher." + transformation + " SupportedKeyClasses",
-                KEYSTORE_PRIVATE_KEY_CLASS_NAME + "|" + KEYSTORE_PUBLIC_KEY_CLASS_NAME);
-    }
-
-    private void putSignatureImpl(String algorithm, String implClass) {
-        put("Signature." + algorithm, implClass);
-        put("Signature." + algorithm + " SupportedKeyClasses",
-                KEYSTORE_PRIVATE_KEY_CLASS_NAME + "|" + KEYSTORE_PUBLIC_KEY_CLASS_NAME);
-    }
-
-    public static String[] getSupportedEcdsaSignatureDigests() {
-        return new String[] {"NONE", "SHA-1", "SHA-224", "SHA-256", "SHA-384", "SHA-512"};
-    }
-
-    public static String[] getSupportedRsaSignatureWithPkcs1PaddingDigests() {
-        return new String[] {"NONE", "MD5", "SHA-1", "SHA-224", "SHA-256", "SHA-384", "SHA-512"};
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreCipherSpiBase.java b/keystore/java/android/security/keystore/AndroidKeyStoreCipherSpiBase.java
deleted file mode 100644
index ccc3153..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreCipherSpiBase.java
+++ /dev/null
@@ -1,920 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.annotation.CallSuper;
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.os.IBinder;
-import android.security.KeyStore;
-import android.security.KeyStoreException;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-import android.security.keymaster.OperationResult;
-
-import libcore.util.EmptyArray;
-
-import java.nio.BufferOverflowException;
-import java.nio.ByteBuffer;
-import java.security.AlgorithmParameters;
-import java.security.GeneralSecurityException;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.InvalidParameterException;
-import java.security.Key;
-import java.security.KeyFactory;
-import java.security.NoSuchAlgorithmException;
-import java.security.PrivateKey;
-import java.security.ProviderException;
-import java.security.PublicKey;
-import java.security.SecureRandom;
-import java.security.spec.AlgorithmParameterSpec;
-import java.security.spec.InvalidKeySpecException;
-import java.security.spec.PKCS8EncodedKeySpec;
-import java.security.spec.X509EncodedKeySpec;
-
-import javax.crypto.AEADBadTagException;
-import javax.crypto.BadPaddingException;
-import javax.crypto.Cipher;
-import javax.crypto.CipherSpi;
-import javax.crypto.IllegalBlockSizeException;
-import javax.crypto.NoSuchPaddingException;
-import javax.crypto.SecretKey;
-import javax.crypto.SecretKeyFactory;
-import javax.crypto.ShortBufferException;
-import javax.crypto.spec.SecretKeySpec;
-
-/**
- * Base class for {@link CipherSpi} implementations of Android KeyStore backed ciphers.
- *
- * @hide
- */
-abstract class AndroidKeyStoreCipherSpiBase extends CipherSpi implements KeyStoreCryptoOperation {
-    private final KeyStore mKeyStore;
-
-    // Fields below are populated by Cipher.init and KeyStore.begin and should be preserved after
-    // doFinal finishes.
-    private boolean mEncrypting;
-    private int mKeymasterPurposeOverride = -1;
-    private AndroidKeyStoreKey mKey;
-    private SecureRandom mRng;
-
-    /**
-     * Token referencing this operation inside keystore service. It is initialized by
-     * {@code engineInit} and is invalidated when {@code engineDoFinal} succeeds and on some error
-     * conditions in between.
-     */
-    private IBinder mOperationToken;
-    private long mOperationHandle;
-    private KeyStoreCryptoOperationStreamer mMainDataStreamer;
-    private KeyStoreCryptoOperationStreamer mAdditionalAuthenticationDataStreamer;
-    private boolean mAdditionalAuthenticationDataStreamerClosed;
-
-    /**
-     * Encountered exception which could not be immediately thrown because it was encountered inside
-     * a method that does not throw checked exception. This exception will be thrown from
-     * {@code engineDoFinal}. Once such an exception is encountered, {@code engineUpdate} and
-     * {@code engineDoFinal} start ignoring input data.
-     */
-    private Exception mCachedException;
-
-    AndroidKeyStoreCipherSpiBase() {
-        mKeyStore = KeyStore.getInstance();
-    }
-
-    @Override
-    protected final void engineInit(int opmode, Key key, SecureRandom random)
-            throws InvalidKeyException {
-        resetAll();
-
-        boolean success = false;
-        try {
-            init(opmode, key, random);
-            initAlgorithmSpecificParameters();
-            try {
-                ensureKeystoreOperationInitialized();
-            } catch (InvalidAlgorithmParameterException e) {
-                throw new InvalidKeyException(e);
-            }
-            success = true;
-        } finally {
-            if (!success) {
-                resetAll();
-            }
-        }
-    }
-
-    @Override
-    protected final void engineInit(int opmode, Key key, AlgorithmParameters params,
-            SecureRandom random) throws InvalidKeyException, InvalidAlgorithmParameterException {
-        resetAll();
-
-        boolean success = false;
-        try {
-            init(opmode, key, random);
-            initAlgorithmSpecificParameters(params);
-            ensureKeystoreOperationInitialized();
-            success = true;
-        } finally {
-            if (!success) {
-                resetAll();
-            }
-        }
-    }
-
-    @Override
-    protected final void engineInit(int opmode, Key key, AlgorithmParameterSpec params,
-            SecureRandom random) throws InvalidKeyException, InvalidAlgorithmParameterException {
-        resetAll();
-
-        boolean success = false;
-        try {
-            init(opmode, key, random);
-            initAlgorithmSpecificParameters(params);
-            ensureKeystoreOperationInitialized();
-            success = true;
-        } finally {
-            if (!success) {
-                resetAll();
-            }
-        }
-    }
-
-    private void init(int opmode, Key key, SecureRandom random) throws InvalidKeyException {
-        switch (opmode) {
-            case Cipher.ENCRYPT_MODE:
-            case Cipher.WRAP_MODE:
-                mEncrypting = true;
-                break;
-            case Cipher.DECRYPT_MODE:
-            case Cipher.UNWRAP_MODE:
-                mEncrypting = false;
-                break;
-            default:
-                throw new InvalidParameterException("Unsupported opmode: " + opmode);
-        }
-        initKey(opmode, key);
-        if (mKey == null) {
-            throw new ProviderException("initKey did not initialize the key");
-        }
-        mRng = random;
-    }
-
-    /**
-     * Resets this cipher to its pristine pre-init state. This must be equivalent to obtaining a new
-     * cipher instance.
-     *
-     * <p>Subclasses storing additional state should override this method, reset the additional
-     * state, and then chain to superclass.
-     */
-    @CallSuper
-    protected void resetAll() {
-        IBinder operationToken = mOperationToken;
-        if (operationToken != null) {
-            mKeyStore.abort(operationToken);
-        }
-        mEncrypting = false;
-        mKeymasterPurposeOverride = -1;
-        mKey = null;
-        mRng = null;
-        mOperationToken = null;
-        mOperationHandle = 0;
-        mMainDataStreamer = null;
-        mAdditionalAuthenticationDataStreamer = null;
-        mAdditionalAuthenticationDataStreamerClosed = false;
-        mCachedException = null;
-    }
-
-    /**
-     * Resets this cipher while preserving the initialized state. This must be equivalent to
-     * rolling back the cipher's state to just after the most recent {@code engineInit} completed
-     * successfully.
-     *
-     * <p>Subclasses storing additional post-init state should override this method, reset the
-     * additional state, and then chain to superclass.
-     */
-    @CallSuper
-    protected void resetWhilePreservingInitState() {
-        IBinder operationToken = mOperationToken;
-        if (operationToken != null) {
-            mKeyStore.abort(operationToken);
-        }
-        mOperationToken = null;
-        mOperationHandle = 0;
-        mMainDataStreamer = null;
-        mAdditionalAuthenticationDataStreamer = null;
-        mAdditionalAuthenticationDataStreamerClosed = false;
-        mCachedException = null;
-    }
-
-    private void ensureKeystoreOperationInitialized() throws InvalidKeyException,
-            InvalidAlgorithmParameterException {
-        if (mMainDataStreamer != null) {
-            return;
-        }
-        if (mCachedException != null) {
-            return;
-        }
-        if (mKey == null) {
-            throw new IllegalStateException("Not initialized");
-        }
-
-        KeymasterArguments keymasterInputArgs = new KeymasterArguments();
-        addAlgorithmSpecificParametersToBegin(keymasterInputArgs);
-        byte[] additionalEntropy = KeyStoreCryptoOperationUtils.getRandomBytesToMixIntoKeystoreRng(
-                mRng, getAdditionalEntropyAmountForBegin());
-
-        int purpose;
-        if (mKeymasterPurposeOverride != -1) {
-            purpose = mKeymasterPurposeOverride;
-        } else {
-            purpose = mEncrypting
-                    ? KeymasterDefs.KM_PURPOSE_ENCRYPT : KeymasterDefs.KM_PURPOSE_DECRYPT;
-        }
-        OperationResult opResult = mKeyStore.begin(
-                mKey.getAlias(),
-                purpose,
-                true, // permit aborting this operation if keystore runs out of resources
-                keymasterInputArgs,
-                additionalEntropy,
-                mKey.getUid());
-        if (opResult == null) {
-            throw new KeyStoreConnectException();
-        }
-
-        // Store operation token and handle regardless of the error code returned by KeyStore to
-        // ensure that the operation gets aborted immediately if the code below throws an exception.
-        mOperationToken = opResult.token;
-        mOperationHandle = opResult.operationHandle;
-
-        // If necessary, throw an exception due to KeyStore operation having failed.
-        GeneralSecurityException e = KeyStoreCryptoOperationUtils.getExceptionForCipherInit(
-                mKeyStore, mKey, opResult.resultCode);
-        if (e != null) {
-            if (e instanceof InvalidKeyException) {
-                throw (InvalidKeyException) e;
-            } else if (e instanceof InvalidAlgorithmParameterException) {
-                throw (InvalidAlgorithmParameterException) e;
-            } else {
-                throw new ProviderException("Unexpected exception type", e);
-            }
-        }
-
-        if (mOperationToken == null) {
-            throw new ProviderException("Keystore returned null operation token");
-        }
-        if (mOperationHandle == 0) {
-            throw new ProviderException("Keystore returned invalid operation handle");
-        }
-
-        loadAlgorithmSpecificParametersFromBeginResult(opResult.outParams);
-        mMainDataStreamer = createMainDataStreamer(mKeyStore, opResult.token);
-        mAdditionalAuthenticationDataStreamer =
-                createAdditionalAuthenticationDataStreamer(mKeyStore, opResult.token);
-        mAdditionalAuthenticationDataStreamerClosed = false;
-    }
-
-    /**
-     * Creates a streamer which sends plaintext/ciphertext into the provided KeyStore and receives
-     * the corresponding ciphertext/plaintext from the KeyStore.
-     *
-     * <p>This implementation returns a working streamer.
-     */
-    @NonNull
-    protected KeyStoreCryptoOperationStreamer createMainDataStreamer(
-            KeyStore keyStore, IBinder operationToken) {
-        return new KeyStoreCryptoOperationChunkedStreamer(
-                new KeyStoreCryptoOperationChunkedStreamer.MainDataStream(
-                        keyStore, operationToken), 0);
-    }
-
-    /**
-     * Creates a streamer which sends Additional Authentication Data (AAD) into the KeyStore.
-     *
-     * <p>This implementation returns {@code null}.
-     *
-     * @return stream or {@code null} if AAD is not supported by this cipher.
-     */
-    @Nullable
-    protected KeyStoreCryptoOperationStreamer createAdditionalAuthenticationDataStreamer(
-            @SuppressWarnings("unused") KeyStore keyStore,
-            @SuppressWarnings("unused") IBinder operationToken) {
-        return null;
-    }
-
-    @Override
-    protected final byte[] engineUpdate(byte[] input, int inputOffset, int inputLen) {
-        if (mCachedException != null) {
-            return null;
-        }
-        try {
-            ensureKeystoreOperationInitialized();
-        } catch (InvalidKeyException | InvalidAlgorithmParameterException e) {
-            mCachedException = e;
-            return null;
-        }
-
-        if (inputLen == 0) {
-            return null;
-        }
-
-        byte[] output;
-        try {
-            flushAAD();
-            output = mMainDataStreamer.update(input, inputOffset, inputLen);
-        } catch (KeyStoreException e) {
-            mCachedException = e;
-            return null;
-        }
-
-        if (output.length == 0) {
-            return null;
-        }
-
-        return output;
-    }
-
-    private void flushAAD() throws KeyStoreException {
-        if ((mAdditionalAuthenticationDataStreamer != null)
-                && (!mAdditionalAuthenticationDataStreamerClosed)) {
-            byte[] output;
-            try {
-                output = mAdditionalAuthenticationDataStreamer.doFinal(
-                        EmptyArray.BYTE, 0, 0,
-                        null, // no signature
-                        null // no additional entropy needed flushing AAD
-                        );
-            } finally {
-                mAdditionalAuthenticationDataStreamerClosed = true;
-            }
-            if ((output != null) && (output.length > 0)) {
-                throw new ProviderException(
-                        "AAD update unexpectedly returned data: " + output.length + " bytes");
-            }
-        }
-    }
-
-    @Override
-    protected final int engineUpdate(byte[] input, int inputOffset, int inputLen, byte[] output,
-            int outputOffset) throws ShortBufferException {
-        byte[] outputCopy = engineUpdate(input, inputOffset, inputLen);
-        if (outputCopy == null) {
-            return 0;
-        }
-        int outputAvailable = output.length - outputOffset;
-        if (outputCopy.length > outputAvailable) {
-            throw new ShortBufferException("Output buffer too short. Produced: "
-                    + outputCopy.length + ", available: " + outputAvailable);
-        }
-        System.arraycopy(outputCopy, 0, output, outputOffset, outputCopy.length);
-        return outputCopy.length;
-    }
-
-    @Override
-    protected final int engineUpdate(ByteBuffer input, ByteBuffer output)
-            throws ShortBufferException {
-        if (input == null) {
-            throw new NullPointerException("input == null");
-        }
-        if (output == null) {
-            throw new NullPointerException("output == null");
-        }
-
-        int inputSize = input.remaining();
-        byte[] outputArray;
-        if (input.hasArray()) {
-            outputArray =
-                    engineUpdate(
-                            input.array(), input.arrayOffset() + input.position(), inputSize);
-            input.position(input.position() + inputSize);
-        } else {
-            byte[] inputArray = new byte[inputSize];
-            input.get(inputArray);
-            outputArray = engineUpdate(inputArray, 0, inputSize);
-        }
-
-        int outputSize = (outputArray != null) ? outputArray.length : 0;
-        if (outputSize > 0) {
-            int outputBufferAvailable = output.remaining();
-            try {
-                output.put(outputArray);
-            } catch (BufferOverflowException e) {
-                throw new ShortBufferException(
-                        "Output buffer too small. Produced: " + outputSize + ", available: "
-                                + outputBufferAvailable);
-            }
-        }
-        return outputSize;
-    }
-
-    @Override
-    protected final void engineUpdateAAD(byte[] input, int inputOffset, int inputLen) {
-        if (mCachedException != null) {
-            return;
-        }
-
-        try {
-            ensureKeystoreOperationInitialized();
-        } catch (InvalidKeyException | InvalidAlgorithmParameterException e) {
-            mCachedException = e;
-            return;
-        }
-
-        if (mAdditionalAuthenticationDataStreamerClosed) {
-            throw new IllegalStateException(
-                    "AAD can only be provided before Cipher.update is invoked");
-        }
-
-        if (mAdditionalAuthenticationDataStreamer == null) {
-            throw new IllegalStateException("This cipher does not support AAD");
-        }
-
-        byte[] output;
-        try {
-            output = mAdditionalAuthenticationDataStreamer.update(input, inputOffset, inputLen);
-        } catch (KeyStoreException e) {
-            mCachedException = e;
-            return;
-        }
-
-        if ((output != null) && (output.length > 0)) {
-            throw new ProviderException("AAD update unexpectedly produced output: "
-                    + output.length + " bytes");
-        }
-    }
-
-    @Override
-    protected final void engineUpdateAAD(ByteBuffer src) {
-        if (src == null) {
-            throw new IllegalArgumentException("src == null");
-        }
-        if (!src.hasRemaining()) {
-            return;
-        }
-
-        byte[] input;
-        int inputOffset;
-        int inputLen;
-        if (src.hasArray()) {
-            input = src.array();
-            inputOffset = src.arrayOffset() + src.position();
-            inputLen = src.remaining();
-            src.position(src.limit());
-        } else {
-            input = new byte[src.remaining()];
-            inputOffset = 0;
-            inputLen = input.length;
-            src.get(input);
-        }
-        engineUpdateAAD(input, inputOffset, inputLen);
-    }
-
-    @Override
-    protected final byte[] engineDoFinal(byte[] input, int inputOffset, int inputLen)
-            throws IllegalBlockSizeException, BadPaddingException {
-        if (mCachedException != null) {
-            throw (IllegalBlockSizeException)
-                    new IllegalBlockSizeException().initCause(mCachedException);
-        }
-
-        try {
-            ensureKeystoreOperationInitialized();
-        } catch (InvalidKeyException | InvalidAlgorithmParameterException e) {
-            throw (IllegalBlockSizeException) new IllegalBlockSizeException().initCause(e);
-        }
-
-        byte[] output;
-        try {
-            flushAAD();
-            byte[] additionalEntropy =
-                    KeyStoreCryptoOperationUtils.getRandomBytesToMixIntoKeystoreRng(
-                            mRng, getAdditionalEntropyAmountForFinish());
-            output = mMainDataStreamer.doFinal(
-                    input, inputOffset, inputLen,
-                    null, // no signature involved
-                    additionalEntropy);
-        } catch (KeyStoreException e) {
-            switch (e.getErrorCode()) {
-                case KeymasterDefs.KM_ERROR_INVALID_INPUT_LENGTH:
-                    throw (IllegalBlockSizeException) new IllegalBlockSizeException().initCause(e);
-                case KeymasterDefs.KM_ERROR_INVALID_ARGUMENT:
-                    throw (BadPaddingException) new BadPaddingException().initCause(e);
-                case KeymasterDefs.KM_ERROR_VERIFICATION_FAILED:
-                    throw (AEADBadTagException) new AEADBadTagException().initCause(e);
-                default:
-                    throw (IllegalBlockSizeException) new IllegalBlockSizeException().initCause(e);
-            }
-        }
-
-        resetWhilePreservingInitState();
-        return output;
-    }
-
-    @Override
-    protected final int engineDoFinal(byte[] input, int inputOffset, int inputLen, byte[] output,
-            int outputOffset) throws ShortBufferException, IllegalBlockSizeException,
-            BadPaddingException {
-        byte[] outputCopy = engineDoFinal(input, inputOffset, inputLen);
-        if (outputCopy == null) {
-            return 0;
-        }
-        int outputAvailable = output.length - outputOffset;
-        if (outputCopy.length > outputAvailable) {
-            throw new ShortBufferException("Output buffer too short. Produced: "
-                    + outputCopy.length + ", available: " + outputAvailable);
-        }
-        System.arraycopy(outputCopy, 0, output, outputOffset, outputCopy.length);
-        return outputCopy.length;
-    }
-
-    @Override
-    protected final int engineDoFinal(ByteBuffer input, ByteBuffer output)
-            throws ShortBufferException, IllegalBlockSizeException, BadPaddingException {
-        if (input == null) {
-            throw new NullPointerException("input == null");
-        }
-        if (output == null) {
-            throw new NullPointerException("output == null");
-        }
-
-        int inputSize = input.remaining();
-        byte[] outputArray;
-        if (input.hasArray()) {
-            outputArray =
-                    engineDoFinal(
-                            input.array(), input.arrayOffset() + input.position(), inputSize);
-            input.position(input.position() + inputSize);
-        } else {
-            byte[] inputArray = new byte[inputSize];
-            input.get(inputArray);
-            outputArray = engineDoFinal(inputArray, 0, inputSize);
-        }
-
-        int outputSize = (outputArray != null) ? outputArray.length : 0;
-        if (outputSize > 0) {
-            int outputBufferAvailable = output.remaining();
-            try {
-                output.put(outputArray);
-            } catch (BufferOverflowException e) {
-                throw new ShortBufferException(
-                        "Output buffer too small. Produced: " + outputSize + ", available: "
-                                + outputBufferAvailable);
-            }
-        }
-        return outputSize;
-    }
-
-    @Override
-    protected final byte[] engineWrap(Key key)
-            throws IllegalBlockSizeException, InvalidKeyException {
-        if (mKey == null) {
-            throw new IllegalStateException("Not initilized");
-        }
-
-        if (!isEncrypting()) {
-            throw new IllegalStateException(
-                    "Cipher must be initialized in Cipher.WRAP_MODE to wrap keys");
-        }
-
-        if (key == null) {
-            throw new NullPointerException("key == null");
-        }
-        byte[] encoded = null;
-        if (key instanceof SecretKey) {
-            if ("RAW".equalsIgnoreCase(key.getFormat())) {
-                encoded = key.getEncoded();
-            }
-            if (encoded == null) {
-                try {
-                    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(key.getAlgorithm());
-                    SecretKeySpec spec =
-                            (SecretKeySpec) keyFactory.getKeySpec(
-                                    (SecretKey) key, SecretKeySpec.class);
-                    encoded = spec.getEncoded();
-                } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
-                    throw new InvalidKeyException(
-                            "Failed to wrap key because it does not export its key material",
-                            e);
-                }
-            }
-        } else if (key instanceof PrivateKey) {
-            if ("PKCS8".equalsIgnoreCase(key.getFormat())) {
-                encoded = key.getEncoded();
-            }
-            if (encoded == null) {
-                try {
-                    KeyFactory keyFactory = KeyFactory.getInstance(key.getAlgorithm());
-                    PKCS8EncodedKeySpec spec =
-                            keyFactory.getKeySpec(key, PKCS8EncodedKeySpec.class);
-                    encoded = spec.getEncoded();
-                } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
-                    throw new InvalidKeyException(
-                            "Failed to wrap key because it does not export its key material",
-                            e);
-                }
-            }
-        } else if (key instanceof PublicKey) {
-            if ("X.509".equalsIgnoreCase(key.getFormat())) {
-                encoded = key.getEncoded();
-            }
-            if (encoded == null) {
-                try {
-                    KeyFactory keyFactory = KeyFactory.getInstance(key.getAlgorithm());
-                    X509EncodedKeySpec spec =
-                            keyFactory.getKeySpec(key, X509EncodedKeySpec.class);
-                    encoded = spec.getEncoded();
-                } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
-                    throw new InvalidKeyException(
-                            "Failed to wrap key because it does not export its key material",
-                            e);
-                }
-            }
-        } else {
-            throw new InvalidKeyException("Unsupported key type: " + key.getClass().getName());
-        }
-
-        if (encoded == null) {
-            throw new InvalidKeyException(
-                    "Failed to wrap key because it does not export its key material");
-        }
-
-        try {
-            return engineDoFinal(encoded, 0, encoded.length);
-        } catch (BadPaddingException e) {
-            throw (IllegalBlockSizeException) new IllegalBlockSizeException().initCause(e);
-        }
-    }
-
-    @Override
-    protected final Key engineUnwrap(byte[] wrappedKey, String wrappedKeyAlgorithm,
-            int wrappedKeyType) throws InvalidKeyException, NoSuchAlgorithmException {
-        if (mKey == null) {
-            throw new IllegalStateException("Not initilized");
-        }
-
-        if (isEncrypting()) {
-            throw new IllegalStateException(
-                    "Cipher must be initialized in Cipher.WRAP_MODE to wrap keys");
-        }
-
-        if (wrappedKey == null) {
-            throw new NullPointerException("wrappedKey == null");
-        }
-
-        byte[] encoded;
-        try {
-            encoded = engineDoFinal(wrappedKey, 0, wrappedKey.length);
-        } catch (IllegalBlockSizeException | BadPaddingException e) {
-            throw new InvalidKeyException("Failed to unwrap key", e);
-        }
-
-        switch (wrappedKeyType) {
-            case Cipher.SECRET_KEY:
-            {
-                return new SecretKeySpec(encoded, wrappedKeyAlgorithm);
-                // break;
-            }
-            case Cipher.PRIVATE_KEY:
-            {
-                KeyFactory keyFactory = KeyFactory.getInstance(wrappedKeyAlgorithm);
-                try {
-                    return keyFactory.generatePrivate(new PKCS8EncodedKeySpec(encoded));
-                } catch (InvalidKeySpecException e) {
-                    throw new InvalidKeyException(
-                            "Failed to create private key from its PKCS#8 encoded form", e);
-                }
-                // break;
-            }
-            case Cipher.PUBLIC_KEY:
-            {
-                KeyFactory keyFactory = KeyFactory.getInstance(wrappedKeyAlgorithm);
-                try {
-                    return keyFactory.generatePublic(new X509EncodedKeySpec(encoded));
-                } catch (InvalidKeySpecException e) {
-                    throw new InvalidKeyException(
-                            "Failed to create public key from its X.509 encoded form", e);
-                }
-                // break;
-            }
-            default:
-                throw new InvalidParameterException(
-                        "Unsupported wrappedKeyType: " + wrappedKeyType);
-        }
-    }
-
-    @Override
-    protected final void engineSetMode(String mode) throws NoSuchAlgorithmException {
-        // This should never be invoked because all algorithms registered with the AndroidKeyStore
-        // provide explicitly specify block mode.
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    protected final void engineSetPadding(String arg0) throws NoSuchPaddingException {
-        // This should never be invoked because all algorithms registered with the AndroidKeyStore
-        // provide explicitly specify padding mode.
-        throw new UnsupportedOperationException();
-    }
-
-    @Override
-    protected final int engineGetKeySize(Key key) throws InvalidKeyException {
-        throw new UnsupportedOperationException();
-    }
-
-    @CallSuper
-    @Override
-    public void finalize() throws Throwable {
-        try {
-            IBinder operationToken = mOperationToken;
-            if (operationToken != null) {
-                mKeyStore.abort(operationToken);
-            }
-        } finally {
-            super.finalize();
-        }
-    }
-
-    @Override
-    public final long getOperationHandle() {
-        return mOperationHandle;
-    }
-
-    protected final void setKey(@NonNull AndroidKeyStoreKey key) {
-        mKey = key;
-    }
-
-    /**
-     * Overrides the default purpose/type of the crypto operation.
-     */
-    protected final void setKeymasterPurposeOverride(int keymasterPurpose) {
-        mKeymasterPurposeOverride = keymasterPurpose;
-    }
-
-    protected final int getKeymasterPurposeOverride() {
-        return mKeymasterPurposeOverride;
-    }
-
-    /**
-     * Returns {@code true} if this cipher is initialized for encryption, {@code false} if this
-     * cipher is initialized for decryption.
-     */
-    protected final boolean isEncrypting() {
-        return mEncrypting;
-    }
-
-    @NonNull
-    protected final KeyStore getKeyStore() {
-        return mKeyStore;
-    }
-
-    protected final long getConsumedInputSizeBytes() {
-        if (mMainDataStreamer == null) {
-            throw new IllegalStateException("Not initialized");
-        }
-        return mMainDataStreamer.getConsumedInputSizeBytes();
-    }
-
-    protected final long getProducedOutputSizeBytes() {
-        if (mMainDataStreamer == null) {
-            throw new IllegalStateException("Not initialized");
-        }
-        return mMainDataStreamer.getProducedOutputSizeBytes();
-    }
-
-    static String opmodeToString(int opmode) {
-        switch (opmode) {
-            case Cipher.ENCRYPT_MODE:
-                return "ENCRYPT_MODE";
-            case Cipher.DECRYPT_MODE:
-                return "DECRYPT_MODE";
-            case Cipher.WRAP_MODE:
-                return "WRAP_MODE";
-            case Cipher.UNWRAP_MODE:
-                return "UNWRAP_MODE";
-            default:
-                return String.valueOf(opmode);
-        }
-    }
-
-    // The methods below need to be implemented by subclasses.
-
-    /**
-     * Initializes this cipher with the provided key.
-     *
-     * @throws InvalidKeyException if the {@code key} is not suitable for this cipher in the
-     *         specified {@code opmode}.
-     *
-     * @see #setKey(AndroidKeyStoreKey)
-     */
-    protected abstract void initKey(int opmode, @Nullable Key key) throws InvalidKeyException;
-
-    /**
-     * Returns algorithm-specific parameters used by this cipher or {@code null} if no
-     * algorithm-specific parameters are used.
-     */
-    @Nullable
-    @Override
-    protected abstract AlgorithmParameters engineGetParameters();
-
-    /**
-     * Invoked by {@code engineInit} to initialize algorithm-specific parameters when no additional
-     * initialization parameters were provided.
-     *
-     * @throws InvalidKeyException if this cipher cannot be configured based purely on the provided
-     *         key and needs additional parameters to be provided to {@code Cipher.init}.
-     */
-    protected abstract void initAlgorithmSpecificParameters() throws InvalidKeyException;
-
-    /**
-     * Invoked by {@code engineInit} to initialize algorithm-specific parameters when additional
-     * parameters were provided.
-     *
-     * @param params additional algorithm parameters or {@code null} if not specified.
-     *
-     * @throws InvalidAlgorithmParameterException if there is insufficient information to configure
-     *         this cipher or if the provided parameters are not suitable for this cipher.
-     */
-    protected abstract void initAlgorithmSpecificParameters(
-            @Nullable AlgorithmParameterSpec params) throws InvalidAlgorithmParameterException;
-
-    /**
-     * Invoked by {@code engineInit} to initialize algorithm-specific parameters when additional
-     * parameters were provided.
-     *
-     * @param params additional algorithm parameters or {@code null} if not specified.
-     *
-     * @throws InvalidAlgorithmParameterException if there is insufficient information to configure
-     *         this cipher or if the provided parameters are not suitable for this cipher.
-     */
-    protected abstract void initAlgorithmSpecificParameters(@Nullable AlgorithmParameters params)
-            throws InvalidAlgorithmParameterException;
-
-    /**
-     * Returns the amount of additional entropy (in bytes) to be provided to the KeyStore's
-     * {@code begin} operation. This amount of entropy is typically what's consumed to generate
-     * random parameters, such as IV.
-     *
-     * <p>For decryption, the return value should be {@code 0} because decryption should not be
-     * consuming any entropy. For encryption, the value combined with
-     * {@link #getAdditionalEntropyAmountForFinish()} should match (or exceed) the amount of Shannon
-     * entropy of the ciphertext produced by this cipher assuming the key, the plaintext, and all
-     * explicitly provided parameters to {@code Cipher.init} are known. For example, for AES CBC
-     * encryption with an explicitly provided IV the return value should be {@code 0}, whereas for
-     * the case where IV is generated by the KeyStore's {@code begin} operation it should be
-     * {@code 16}.
-     */
-    protected abstract int getAdditionalEntropyAmountForBegin();
-
-    /**
-     * Returns the amount of additional entropy (in bytes) to be provided to the KeyStore's
-     * {@code finish} operation. This amount of entropy is typically what's consumed by encryption
-     * padding scheme.
-     *
-     * <p>For decryption, the return value should be {@code 0} because decryption should not be
-     * consuming any entropy. For encryption, the value combined with
-     * {@link #getAdditionalEntropyAmountForBegin()} should match (or exceed) the amount of Shannon
-     * entropy of the ciphertext produced by this cipher assuming the key, the plaintext, and all
-     * explicitly provided parameters to {@code Cipher.init} are known. For example, for RSA with
-     * OAEP the return value should be the size of the OAEP hash output. For RSA with PKCS#1 padding
-     * the return value should be the size of the padding string or could be raised (for simplicity)
-     * to the size of the modulus.
-     */
-    protected abstract int getAdditionalEntropyAmountForFinish();
-
-    /**
-     * Invoked to add algorithm-specific parameters for the KeyStore's {@code begin} operation.
-     *
-     * @param keymasterArgs keystore/keymaster arguments to be populated with algorithm-specific
-     *        parameters.
-     */
-    protected abstract void addAlgorithmSpecificParametersToBegin(
-            @NonNull KeymasterArguments keymasterArgs);
-
-    /**
-     * Invoked to obtain algorithm-specific parameters from the result of the KeyStore's
-     * {@code begin} operation.
-     *
-     * <p>Some parameters, such as IV, are not required to be provided to {@code Cipher.init}. Such
-     * parameters, if not provided, must be generated by KeyStore and returned to the user of
-     * {@code Cipher} and potentially reused after {@code doFinal}.
-     *
-     * @param keymasterArgs keystore/keymaster arguments returned by KeyStore {@code begin}
-     *        operation.
-     */
-    protected abstract void loadAlgorithmSpecificParametersFromBeginResult(
-            @NonNull KeymasterArguments keymasterArgs);
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreECDSASignatureSpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreECDSASignatureSpi.java
deleted file mode 100644
index 45f2110..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreECDSASignatureSpi.java
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.annotation.NonNull;
-import android.os.IBinder;
-import android.security.KeyStore;
-import android.security.KeyStoreException;
-import android.security.keymaster.KeyCharacteristics;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-
-import libcore.util.EmptyArray;
-
-import java.io.ByteArrayOutputStream;
-import java.security.InvalidKeyException;
-import java.security.SignatureSpi;
-
-/**
- * Base class for {@link SignatureSpi} providing Android KeyStore backed ECDSA signatures.
- *
- * @hide
- */
-abstract class AndroidKeyStoreECDSASignatureSpi extends AndroidKeyStoreSignatureSpiBase {
-
-    public final static class NONE extends AndroidKeyStoreECDSASignatureSpi {
-        public NONE() {
-            super(KeymasterDefs.KM_DIGEST_NONE);
-        }
-
-        @Override
-        protected KeyStoreCryptoOperationStreamer createMainDataStreamer(KeyStore keyStore,
-                IBinder operationToken) {
-            return new TruncateToFieldSizeMessageStreamer(
-                    super.createMainDataStreamer(keyStore, operationToken),
-                    getGroupSizeBits());
-        }
-
-        /**
-         * Streamer which buffers all input, then truncates it to field size, and then sends it into
-         * KeyStore via the provided delegate streamer.
-         */
-        private static class TruncateToFieldSizeMessageStreamer
-                implements KeyStoreCryptoOperationStreamer {
-
-            private final KeyStoreCryptoOperationStreamer mDelegate;
-            private final int mGroupSizeBits;
-            private final ByteArrayOutputStream mInputBuffer = new ByteArrayOutputStream();
-            private long mConsumedInputSizeBytes;
-
-            private TruncateToFieldSizeMessageStreamer(
-                    KeyStoreCryptoOperationStreamer delegate,
-                    int groupSizeBits) {
-                mDelegate = delegate;
-                mGroupSizeBits = groupSizeBits;
-            }
-
-            @Override
-            public byte[] update(byte[] input, int inputOffset, int inputLength)
-                    throws KeyStoreException {
-                if (inputLength > 0) {
-                    mInputBuffer.write(input, inputOffset, inputLength);
-                    mConsumedInputSizeBytes += inputLength;
-                }
-                return EmptyArray.BYTE;
-            }
-
-            @Override
-            public byte[] doFinal(byte[] input, int inputOffset, int inputLength, byte[] signature,
-                    byte[] additionalEntropy) throws KeyStoreException {
-                if (inputLength > 0) {
-                    mConsumedInputSizeBytes += inputLength;
-                    mInputBuffer.write(input, inputOffset, inputLength);
-                }
-
-                byte[] bufferedInput = mInputBuffer.toByteArray();
-                mInputBuffer.reset();
-                // Truncate input at field size (bytes)
-                return mDelegate.doFinal(bufferedInput,
-                        0,
-                        Math.min(bufferedInput.length, ((mGroupSizeBits + 7) / 8)),
-                        signature, additionalEntropy);
-            }
-
-            @Override
-            public long getConsumedInputSizeBytes() {
-                return mConsumedInputSizeBytes;
-            }
-
-            @Override
-            public long getProducedOutputSizeBytes() {
-                return mDelegate.getProducedOutputSizeBytes();
-            }
-        }
-    }
-
-    public final static class SHA1 extends AndroidKeyStoreECDSASignatureSpi {
-        public SHA1() {
-            super(KeymasterDefs.KM_DIGEST_SHA1);
-        }
-    }
-
-    public final static class SHA224 extends AndroidKeyStoreECDSASignatureSpi {
-        public SHA224() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_224);
-        }
-    }
-
-    public final static class SHA256 extends AndroidKeyStoreECDSASignatureSpi {
-        public SHA256() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_256);
-        }
-    }
-
-    public final static class SHA384 extends AndroidKeyStoreECDSASignatureSpi {
-        public SHA384() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_384);
-        }
-    }
-
-    public final static class SHA512 extends AndroidKeyStoreECDSASignatureSpi {
-        public SHA512() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_512);
-        }
-    }
-
-    private final int mKeymasterDigest;
-
-    private int mGroupSizeBits = -1;
-
-    AndroidKeyStoreECDSASignatureSpi(int keymasterDigest) {
-        mKeymasterDigest = keymasterDigest;
-    }
-
-    @Override
-    protected final void initKey(AndroidKeyStoreKey key) throws InvalidKeyException {
-        if (!KeyProperties.KEY_ALGORITHM_EC.equalsIgnoreCase(key.getAlgorithm())) {
-            throw new InvalidKeyException("Unsupported key algorithm: " + key.getAlgorithm()
-                    + ". Only" + KeyProperties.KEY_ALGORITHM_EC + " supported");
-        }
-
-        KeyCharacteristics keyCharacteristics = new KeyCharacteristics();
-        int errorCode = getKeyStore().getKeyCharacteristics(
-                key.getAlias(), null, null, key.getUid(), keyCharacteristics);
-        if (errorCode != KeyStore.NO_ERROR) {
-            throw getKeyStore().getInvalidKeyException(key.getAlias(), key.getUid(), errorCode);
-        }
-        long keySizeBits = keyCharacteristics.getUnsignedInt(KeymasterDefs.KM_TAG_KEY_SIZE, -1);
-        if (keySizeBits == -1) {
-            throw new InvalidKeyException("Size of key not known");
-        } else if (keySizeBits > Integer.MAX_VALUE) {
-            throw new InvalidKeyException("Key too large: " + keySizeBits + " bits");
-        }
-        mGroupSizeBits = (int) keySizeBits;
-
-        super.initKey(key);
-    }
-
-    @Override
-    protected final void resetAll() {
-        mGroupSizeBits = -1;
-        super.resetAll();
-    }
-
-    @Override
-    protected final void resetWhilePreservingInitState() {
-        super.resetWhilePreservingInitState();
-    }
-
-    @Override
-    protected final void addAlgorithmSpecificParametersToBegin(
-            @NonNull KeymasterArguments keymasterArgs) {
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, KeymasterDefs.KM_ALGORITHM_EC);
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_DIGEST, mKeymasterDigest);
-    }
-
-    @Override
-    protected final int getAdditionalEntropyAmountForSign() {
-        return (mGroupSizeBits + 7) / 8;
-    }
-
-    protected final int getGroupSizeBits() {
-        if (mGroupSizeBits == -1) {
-            throw new IllegalStateException("Not initialized");
-        }
-        return mGroupSizeBits;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreECPrivateKey.java b/keystore/java/android/security/keystore/AndroidKeyStoreECPrivateKey.java
deleted file mode 100644
index aa7bdff..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreECPrivateKey.java
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import java.security.PrivateKey;
-import java.security.interfaces.ECKey;
-import java.security.spec.ECParameterSpec;
-
-/**
- * EC private key (instance of {@link PrivateKey} and {@link ECKey}) backed by keystore.
- *
- * @hide
- */
-public class AndroidKeyStoreECPrivateKey extends AndroidKeyStorePrivateKey implements ECKey {
-    private final ECParameterSpec mParams;
-
-    public AndroidKeyStoreECPrivateKey(String alias, int uid, ECParameterSpec params) {
-        super(alias, uid, KeyProperties.KEY_ALGORITHM_EC);
-        mParams = params;
-    }
-
-    @Override
-    public ECParameterSpec getParams() {
-        return mParams;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreECPublicKey.java b/keystore/java/android/security/keystore/AndroidKeyStoreECPublicKey.java
deleted file mode 100644
index 2efaeb6..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreECPublicKey.java
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import java.security.interfaces.ECPublicKey;
-import java.security.spec.ECParameterSpec;
-import java.security.spec.ECPoint;
-
-/**
- * {@link ECPublicKey} backed by keystore.
- *
- * @hide
- */
-public class AndroidKeyStoreECPublicKey extends AndroidKeyStorePublicKey implements ECPublicKey {
-
-    private final ECParameterSpec mParams;
-    private final ECPoint mW;
-
-    public AndroidKeyStoreECPublicKey(String alias, int uid, byte[] x509EncodedForm, ECParameterSpec params,
-            ECPoint w) {
-        super(alias, uid, KeyProperties.KEY_ALGORITHM_EC, x509EncodedForm);
-        mParams = params;
-        mW = w;
-    }
-
-    public AndroidKeyStoreECPublicKey(String alias, int uid, ECPublicKey info) {
-        this(alias, uid, info.getEncoded(), info.getParams(), info.getW());
-        if (!"X.509".equalsIgnoreCase(info.getFormat())) {
-            throw new IllegalArgumentException(
-                    "Unsupported key export format: " + info.getFormat());
-        }
-    }
-
-    @Override
-    public ECParameterSpec getParams() {
-        return mParams;
-    }
-
-    @Override
-    public ECPoint getW() {
-        return mW;
-    }
-}
\ No newline at end of file
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreHmacSpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreHmacSpi.java
deleted file mode 100644
index 2e8ac32..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreHmacSpi.java
+++ /dev/null
@@ -1,265 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.os.IBinder;
-import android.security.KeyStore;
-import android.security.KeyStoreException;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-import android.security.keymaster.OperationResult;
-
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.Key;
-import java.security.ProviderException;
-import java.security.spec.AlgorithmParameterSpec;
-
-import javax.crypto.MacSpi;
-
-/**
- * {@link MacSpi} which provides HMAC implementations backed by Android KeyStore.
- *
- * @hide
- */
-public abstract class AndroidKeyStoreHmacSpi extends MacSpi implements KeyStoreCryptoOperation {
-
-    public static class HmacSHA1 extends AndroidKeyStoreHmacSpi {
-        public HmacSHA1() {
-            super(KeymasterDefs.KM_DIGEST_SHA1);
-        }
-    }
-
-    public static class HmacSHA224 extends AndroidKeyStoreHmacSpi {
-        public HmacSHA224() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_224);
-        }
-    }
-
-    public static class HmacSHA256 extends AndroidKeyStoreHmacSpi {
-        public HmacSHA256() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_256);
-        }
-    }
-
-    public static class HmacSHA384 extends AndroidKeyStoreHmacSpi {
-        public HmacSHA384() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_384);
-        }
-    }
-
-    public static class HmacSHA512 extends AndroidKeyStoreHmacSpi {
-        public HmacSHA512() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_512);
-        }
-    }
-
-    private final KeyStore mKeyStore = KeyStore.getInstance();
-    private final int mKeymasterDigest;
-    private final int mMacSizeBits;
-
-    // Fields below are populated by engineInit and should be preserved after engineDoFinal.
-    private AndroidKeyStoreSecretKey mKey;
-
-    // Fields below are reset when engineDoFinal succeeds.
-    private KeyStoreCryptoOperationChunkedStreamer mChunkedStreamer;
-    private IBinder mOperationToken;
-    private long mOperationHandle;
-
-    protected AndroidKeyStoreHmacSpi(int keymasterDigest) {
-        mKeymasterDigest = keymasterDigest;
-        mMacSizeBits = KeymasterUtils.getDigestOutputSizeBits(keymasterDigest);
-    }
-
-    @Override
-    protected int engineGetMacLength() {
-        return (mMacSizeBits + 7) / 8;
-    }
-
-    @Override
-    protected void engineInit(Key key, AlgorithmParameterSpec params) throws InvalidKeyException,
-            InvalidAlgorithmParameterException {
-        resetAll();
-
-        boolean success = false;
-        try {
-            init(key, params);
-            ensureKeystoreOperationInitialized();
-            success = true;
-        } finally {
-            if (!success) {
-                resetAll();
-            }
-        }
-    }
-
-    private void init(Key key, AlgorithmParameterSpec params) throws InvalidKeyException,
-        InvalidAlgorithmParameterException {
-        if (key == null) {
-            throw new InvalidKeyException("key == null");
-        } else if (!(key instanceof AndroidKeyStoreSecretKey)) {
-            throw new InvalidKeyException(
-                    "Only Android KeyStore secret keys supported. Key: " + key);
-        }
-        mKey = (AndroidKeyStoreSecretKey) key;
-
-        if (params != null) {
-            throw new InvalidAlgorithmParameterException(
-                    "Unsupported algorithm parameters: " + params);
-        }
-
-    }
-
-    private void resetAll() {
-        mKey = null;
-        IBinder operationToken = mOperationToken;
-        if (operationToken != null) {
-            mKeyStore.abort(operationToken);
-        }
-        mOperationToken = null;
-        mOperationHandle = 0;
-        mChunkedStreamer = null;
-    }
-
-    private void resetWhilePreservingInitState() {
-        IBinder operationToken = mOperationToken;
-        if (operationToken != null) {
-            mKeyStore.abort(operationToken);
-        }
-        mOperationToken = null;
-        mOperationHandle = 0;
-        mChunkedStreamer = null;
-    }
-
-    @Override
-    protected void engineReset() {
-        resetWhilePreservingInitState();
-    }
-
-    private void ensureKeystoreOperationInitialized() throws InvalidKeyException {
-        if (mChunkedStreamer != null) {
-            return;
-        }
-        if (mKey == null) {
-            throw new IllegalStateException("Not initialized");
-        }
-
-        KeymasterArguments keymasterArgs = new KeymasterArguments();
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, KeymasterDefs.KM_ALGORITHM_HMAC);
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_DIGEST, mKeymasterDigest);
-        keymasterArgs.addUnsignedInt(KeymasterDefs.KM_TAG_MAC_LENGTH, mMacSizeBits);
-
-        OperationResult opResult = mKeyStore.begin(
-                mKey.getAlias(),
-                KeymasterDefs.KM_PURPOSE_SIGN,
-                true,
-                keymasterArgs,
-                null, // no additional entropy needed for HMAC because it's deterministic
-                mKey.getUid());
-
-        if (opResult == null) {
-            throw new KeyStoreConnectException();
-        }
-
-        // Store operation token and handle regardless of the error code returned by KeyStore to
-        // ensure that the operation gets aborted immediately if the code below throws an exception.
-        mOperationToken = opResult.token;
-        mOperationHandle = opResult.operationHandle;
-
-        // If necessary, throw an exception due to KeyStore operation having failed.
-        InvalidKeyException e = KeyStoreCryptoOperationUtils.getInvalidKeyExceptionForInit(
-                mKeyStore, mKey, opResult.resultCode);
-        if (e != null) {
-            throw e;
-        }
-
-        if (mOperationToken == null) {
-            throw new ProviderException("Keystore returned null operation token");
-        }
-        if (mOperationHandle == 0) {
-            throw new ProviderException("Keystore returned invalid operation handle");
-        }
-
-        mChunkedStreamer = new KeyStoreCryptoOperationChunkedStreamer(
-                new KeyStoreCryptoOperationChunkedStreamer.MainDataStream(
-                        mKeyStore, mOperationToken));
-    }
-
-    @Override
-    protected void engineUpdate(byte input) {
-        engineUpdate(new byte[] {input}, 0, 1);
-    }
-
-    @Override
-    protected void engineUpdate(byte[] input, int offset, int len) {
-        try {
-            ensureKeystoreOperationInitialized();
-        } catch (InvalidKeyException e) {
-            throw new ProviderException("Failed to reinitialize MAC", e);
-        }
-
-        byte[] output;
-        try {
-            output = mChunkedStreamer.update(input, offset, len);
-        } catch (KeyStoreException e) {
-            throw new ProviderException("Keystore operation failed", e);
-        }
-        if ((output != null) && (output.length != 0)) {
-            throw new ProviderException("Update operation unexpectedly produced output");
-        }
-    }
-
-    @Override
-    protected byte[] engineDoFinal() {
-        try {
-            ensureKeystoreOperationInitialized();
-        } catch (InvalidKeyException e) {
-            throw new ProviderException("Failed to reinitialize MAC", e);
-        }
-
-        byte[] result;
-        try {
-            result = mChunkedStreamer.doFinal(
-                    null, 0, 0,
-                    null, // no signature provided -- this invocation will generate one
-                    null // no additional entropy needed -- HMAC is deterministic
-                    );
-        } catch (KeyStoreException e) {
-            throw new ProviderException("Keystore operation failed", e);
-        }
-
-        resetWhilePreservingInitState();
-        return result;
-    }
-
-    @Override
-    public void finalize() throws Throwable {
-        try {
-            IBinder operationToken = mOperationToken;
-            if (operationToken != null) {
-                mKeyStore.abort(operationToken);
-            }
-        } finally {
-            super.finalize();
-        }
-    }
-
-    @Override
-    public long getOperationHandle() {
-        return mOperationHandle;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreKey.java b/keystore/java/android/security/keystore/AndroidKeyStoreKey.java
deleted file mode 100644
index e8e6310..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreKey.java
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import java.security.Key;
-
-/**
- * {@link Key} backed by Android Keystore.
- *
- * @hide
- */
-public class AndroidKeyStoreKey implements Key {
-    private final String mAlias;
-    private final int mUid;
-    private final String mAlgorithm;
-
-    public AndroidKeyStoreKey(String alias, int uid, String algorithm) {
-        mAlias = alias;
-        mUid = uid;
-        mAlgorithm = algorithm;
-    }
-
-    String getAlias() {
-        return mAlias;
-    }
-
-    int getUid() {
-        return mUid;
-    }
-
-    @Override
-    public String getAlgorithm() {
-        return mAlgorithm;
-    }
-
-    @Override
-    public String getFormat() {
-        // This key does not export its key material
-        return null;
-    }
-
-    @Override
-    public byte[] getEncoded() {
-        // This key does not export its key material
-        return null;
-    }
-
-    @Override
-    public int hashCode() {
-        final int prime = 31;
-        int result = 1;
-        result = prime * result + ((mAlgorithm == null) ? 0 : mAlgorithm.hashCode());
-        result = prime * result + ((mAlias == null) ? 0 : mAlias.hashCode());
-        result = prime * result + mUid;
-        return result;
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (this == obj) {
-            return true;
-        }
-        if (obj == null) {
-            return false;
-        }
-        if (getClass() != obj.getClass()) {
-            return false;
-        }
-        AndroidKeyStoreKey other = (AndroidKeyStoreKey) obj;
-        if (mAlgorithm == null) {
-            if (other.mAlgorithm != null) {
-                return false;
-            }
-        } else if (!mAlgorithm.equals(other.mAlgorithm)) {
-            return false;
-        }
-        if (mAlias == null) {
-            if (other.mAlias != null) {
-                return false;
-            }
-        } else if (!mAlias.equals(other.mAlias)) {
-            return false;
-        }
-        if (mUid != other.mUid) {
-            return false;
-        }
-        return true;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreKeyFactorySpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreKeyFactorySpi.java
deleted file mode 100644
index 303b0f2..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreKeyFactorySpi.java
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.security.Credentials;
-import android.security.KeyStore;
-
-import java.security.InvalidKeyException;
-import java.security.Key;
-import java.security.KeyFactorySpi;
-import java.security.PrivateKey;
-import java.security.PublicKey;
-import java.security.spec.ECPublicKeySpec;
-import java.security.spec.InvalidKeySpecException;
-import java.security.spec.KeySpec;
-import java.security.spec.PKCS8EncodedKeySpec;
-import java.security.spec.RSAPublicKeySpec;
-import java.security.spec.X509EncodedKeySpec;
-
-/**
- * {@link KeyFactorySpi} backed by Android KeyStore.
- *
- * @hide
- */
-public class AndroidKeyStoreKeyFactorySpi extends KeyFactorySpi {
-
-    private final KeyStore mKeyStore = KeyStore.getInstance();
-
-    @Override
-    protected <T extends KeySpec> T engineGetKeySpec(Key key, Class<T> keySpecClass)
-            throws InvalidKeySpecException {
-        if (key == null) {
-            throw new InvalidKeySpecException("key == null");
-        } else if ((!(key instanceof AndroidKeyStorePrivateKey))
-            && (!(key instanceof AndroidKeyStorePublicKey))) {
-            throw new InvalidKeySpecException(
-                    "Unsupported key type: " + key.getClass().getName()
-                    + ". This KeyFactory supports only Android Keystore asymmetric keys");
-        }
-
-        // key is an Android Keystore private or public key
-
-        if (keySpecClass == null) {
-            throw new InvalidKeySpecException("keySpecClass == null");
-        } else if (KeyInfo.class.equals(keySpecClass)) {
-            if (!(key instanceof AndroidKeyStorePrivateKey)) {
-                throw new InvalidKeySpecException(
-                        "Unsupported key type: " + key.getClass().getName()
-                        + ". KeyInfo can be obtained only for Android Keystore private keys");
-            }
-            AndroidKeyStorePrivateKey keystorePrivateKey = (AndroidKeyStorePrivateKey) key;
-            String keyAliasInKeystore = keystorePrivateKey.getAlias();
-            String entryAlias;
-            if (keyAliasInKeystore.startsWith(Credentials.USER_PRIVATE_KEY)) {
-                entryAlias = keyAliasInKeystore.substring(Credentials.USER_PRIVATE_KEY.length());
-            } else {
-                throw new InvalidKeySpecException("Invalid key alias: " + keyAliasInKeystore);
-            }
-            @SuppressWarnings("unchecked")
-            T result = (T) AndroidKeyStoreSecretKeyFactorySpi.getKeyInfo(
-                    mKeyStore, entryAlias, keyAliasInKeystore, keystorePrivateKey.getUid());
-            return result;
-        } else if (X509EncodedKeySpec.class.equals(keySpecClass)) {
-            if (!(key instanceof AndroidKeyStorePublicKey)) {
-                throw new InvalidKeySpecException(
-                        "Unsupported key type: " + key.getClass().getName()
-                        + ". X509EncodedKeySpec can be obtained only for Android Keystore public"
-                        + " keys");
-            }
-            @SuppressWarnings("unchecked")
-            T result = (T) new X509EncodedKeySpec(((AndroidKeyStorePublicKey) key).getEncoded());
-            return result;
-        } else if (PKCS8EncodedKeySpec.class.equals(keySpecClass)) {
-            if (key instanceof AndroidKeyStorePrivateKey) {
-                throw new InvalidKeySpecException(
-                        "Key material export of Android Keystore private keys is not supported");
-            } else {
-                throw new InvalidKeySpecException(
-                        "Cannot export key material of public key in PKCS#8 format."
-                        + " Only X.509 format (X509EncodedKeySpec) supported for public keys.");
-            }
-        } else if (RSAPublicKeySpec.class.equals(keySpecClass)) {
-            if (key instanceof AndroidKeyStoreRSAPublicKey) {
-                AndroidKeyStoreRSAPublicKey rsaKey = (AndroidKeyStoreRSAPublicKey) key;
-                @SuppressWarnings("unchecked")
-                T result =
-                        (T) new RSAPublicKeySpec(rsaKey.getModulus(), rsaKey.getPublicExponent());
-                return result;
-            } else {
-                throw new InvalidKeySpecException(
-                        "Obtaining RSAPublicKeySpec not supported for " + key.getAlgorithm() + " "
-                        + ((key instanceof AndroidKeyStorePrivateKey) ? "private" : "public")
-                        + " key");
-            }
-        } else if (ECPublicKeySpec.class.equals(keySpecClass)) {
-            if (key instanceof AndroidKeyStoreECPublicKey) {
-                AndroidKeyStoreECPublicKey ecKey = (AndroidKeyStoreECPublicKey) key;
-                @SuppressWarnings("unchecked")
-                T result = (T) new ECPublicKeySpec(ecKey.getW(), ecKey.getParams());
-                return result;
-            } else {
-                throw new InvalidKeySpecException(
-                        "Obtaining ECPublicKeySpec not supported for " + key.getAlgorithm() + " "
-                        + ((key instanceof AndroidKeyStorePrivateKey) ? "private" : "public")
-                        + " key");
-            }
-        } else {
-            throw new InvalidKeySpecException("Unsupported key spec: " + keySpecClass.getName());
-        }
-    }
-
-    @Override
-    protected PrivateKey engineGeneratePrivate(KeySpec spec) throws InvalidKeySpecException {
-        throw new InvalidKeySpecException(
-                "To generate a key pair in Android Keystore, use KeyPairGenerator initialized with"
-                + " " + KeyGenParameterSpec.class.getName());
-    }
-
-    @Override
-    protected PublicKey engineGeneratePublic(KeySpec spec) throws InvalidKeySpecException {
-        throw new InvalidKeySpecException(
-                "To generate a key pair in Android Keystore, use KeyPairGenerator initialized with"
-                + " " + KeyGenParameterSpec.class.getName());
-    }
-
-    @Override
-    protected Key engineTranslateKey(Key key) throws InvalidKeyException {
-        if (key == null) {
-            throw new InvalidKeyException("key == null");
-        } else if ((!(key instanceof AndroidKeyStorePrivateKey))
-                && (!(key instanceof AndroidKeyStorePublicKey))) {
-            throw new InvalidKeyException(
-                    "To import a key into Android Keystore, use KeyStore.setEntry");
-        }
-        return key;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreKeyGeneratorSpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreKeyGeneratorSpi.java
deleted file mode 100644
index fedde42..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreKeyGeneratorSpi.java
+++ /dev/null
@@ -1,352 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.security.Credentials;
-import android.security.KeyStore;
-import android.security.keymaster.KeyCharacteristics;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-import android.security.keystore.KeyGenParameterSpec;
-import android.security.keystore.KeyProperties;
-
-import libcore.util.EmptyArray;
-
-import java.security.InvalidAlgorithmParameterException;
-import java.security.ProviderException;
-import java.security.SecureRandom;
-import java.security.spec.AlgorithmParameterSpec;
-import java.util.Arrays;
-
-import javax.crypto.KeyGeneratorSpi;
-import javax.crypto.SecretKey;
-
-/**
- * {@link KeyGeneratorSpi} backed by Android KeyStore.
- *
- * @hide
- */
-public abstract class AndroidKeyStoreKeyGeneratorSpi extends KeyGeneratorSpi {
-
-    public static class AES extends AndroidKeyStoreKeyGeneratorSpi {
-        public AES() {
-            super(KeymasterDefs.KM_ALGORITHM_AES, 128);
-        }
-
-        @Override
-        protected void engineInit(AlgorithmParameterSpec params, SecureRandom random)
-                throws InvalidAlgorithmParameterException {
-            super.engineInit(params, random);
-            if ((mKeySizeBits != 128) && (mKeySizeBits != 192) && (mKeySizeBits != 256)) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unsupported key size: " + mKeySizeBits
-                        + ". Supported: 128, 192, 256.");
-            }
-        }
-    }
-
-    public static class DESede extends AndroidKeyStoreKeyGeneratorSpi {
-        public DESede() {
-            super(KeymasterDefs.KM_ALGORITHM_3DES, 168);
-        }
-    }
-
-    protected static abstract class HmacBase extends AndroidKeyStoreKeyGeneratorSpi {
-        protected HmacBase(int keymasterDigest) {
-            super(KeymasterDefs.KM_ALGORITHM_HMAC,
-                    keymasterDigest,
-                    KeymasterUtils.getDigestOutputSizeBits(keymasterDigest));
-        }
-    }
-
-    public static class HmacSHA1 extends HmacBase {
-        public HmacSHA1() {
-            super(KeymasterDefs.KM_DIGEST_SHA1);
-        }
-    }
-
-    public static class HmacSHA224 extends HmacBase {
-        public HmacSHA224() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_224);
-        }
-    }
-
-    public static class HmacSHA256 extends HmacBase {
-        public HmacSHA256() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_256);
-        }
-    }
-
-    public static class HmacSHA384 extends HmacBase {
-        public HmacSHA384() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_384);
-        }
-    }
-
-    public static class HmacSHA512 extends HmacBase {
-        public HmacSHA512() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_512);
-        }
-    }
-
-    private final KeyStore mKeyStore = KeyStore.getInstance();
-    private final int mKeymasterAlgorithm;
-    private final int mKeymasterDigest;
-    private final int mDefaultKeySizeBits;
-
-    private KeyGenParameterSpec mSpec;
-    private SecureRandom mRng;
-
-    protected int mKeySizeBits;
-    private int[] mKeymasterPurposes;
-    private int[] mKeymasterBlockModes;
-    private int[] mKeymasterPaddings;
-    private int[] mKeymasterDigests;
-
-    protected AndroidKeyStoreKeyGeneratorSpi(
-            int keymasterAlgorithm,
-            int defaultKeySizeBits) {
-        this(keymasterAlgorithm, -1, defaultKeySizeBits);
-    }
-
-    protected AndroidKeyStoreKeyGeneratorSpi(
-            int keymasterAlgorithm,
-            int keymasterDigest,
-            int defaultKeySizeBits) {
-        mKeymasterAlgorithm = keymasterAlgorithm;
-        mKeymasterDigest = keymasterDigest;
-        mDefaultKeySizeBits = defaultKeySizeBits;
-        if (mDefaultKeySizeBits <= 0) {
-            throw new IllegalArgumentException("Default key size must be positive");
-        }
-
-        if ((mKeymasterAlgorithm == KeymasterDefs.KM_ALGORITHM_HMAC) && (mKeymasterDigest == -1)) {
-            throw new IllegalArgumentException(
-                    "Digest algorithm must be specified for HMAC key");
-        }
-    }
-
-    @Override
-    protected void engineInit(SecureRandom random) {
-        throw new UnsupportedOperationException("Cannot initialize without a "
-                + KeyGenParameterSpec.class.getName() + " parameter");
-    }
-
-    @Override
-    protected void engineInit(int keySize, SecureRandom random) {
-        throw new UnsupportedOperationException("Cannot initialize without a "
-                + KeyGenParameterSpec.class.getName() + " parameter");
-    }
-
-    @Override
-    protected void engineInit(AlgorithmParameterSpec params, SecureRandom random)
-            throws InvalidAlgorithmParameterException {
-        resetAll();
-
-        boolean success = false;
-        try {
-            if ((params == null) || (!(params instanceof KeyGenParameterSpec))) {
-                throw new InvalidAlgorithmParameterException("Cannot initialize without a "
-                        + KeyGenParameterSpec.class.getName() + " parameter");
-            }
-            KeyGenParameterSpec spec = (KeyGenParameterSpec) params;
-            if (spec.getKeystoreAlias() == null) {
-                throw new InvalidAlgorithmParameterException("KeyStore entry alias not provided");
-            }
-
-            mRng = random;
-            mSpec = spec;
-
-            mKeySizeBits = (spec.getKeySize() != -1) ? spec.getKeySize() : mDefaultKeySizeBits;
-            if (mKeySizeBits <= 0) {
-                throw new InvalidAlgorithmParameterException(
-                        "Key size must be positive: " + mKeySizeBits);
-            } else if ((mKeySizeBits % 8) != 0) {
-                throw new InvalidAlgorithmParameterException(
-                        "Key size must be a multiple of 8: " + mKeySizeBits);
-            }
-
-            try {
-                mKeymasterPurposes = KeyProperties.Purpose.allToKeymaster(spec.getPurposes());
-                mKeymasterPaddings = KeyProperties.EncryptionPadding.allToKeymaster(
-                        spec.getEncryptionPaddings());
-                if (spec.getSignaturePaddings().length > 0) {
-                    throw new InvalidAlgorithmParameterException(
-                            "Signature paddings not supported for symmetric key algorithms");
-                }
-                mKeymasterBlockModes = KeyProperties.BlockMode.allToKeymaster(spec.getBlockModes());
-                if (((spec.getPurposes() & KeyProperties.PURPOSE_ENCRYPT) != 0)
-                        && (spec.isRandomizedEncryptionRequired())) {
-                    for (int keymasterBlockMode : mKeymasterBlockModes) {
-                        if (!KeymasterUtils.isKeymasterBlockModeIndCpaCompatibleWithSymmetricCrypto(
-                                keymasterBlockMode)) {
-                            throw new InvalidAlgorithmParameterException(
-                                    "Randomized encryption (IND-CPA) required but may be violated"
-                                    + " by block mode: "
-                                    + KeyProperties.BlockMode.fromKeymaster(keymasterBlockMode)
-                                    + ". See " + KeyGenParameterSpec.class.getName()
-                                    + " documentation.");
-                        }
-                    }
-                }
-                if (mKeymasterAlgorithm == KeymasterDefs.KM_ALGORITHM_3DES) {
-                    if (mKeySizeBits != 168) {
-                        throw new InvalidAlgorithmParameterException(
-                            "3DES key size must be 168 bits.");
-                    }
-                }
-                if (mKeymasterAlgorithm == KeymasterDefs.KM_ALGORITHM_HMAC) {
-                    if (mKeySizeBits < 64 || mKeySizeBits > 512) {
-                        throw new InvalidAlgorithmParameterException(
-                            "HMAC key sizes must be within 64-512 bits, inclusive.");
-                    }
-
-                    // JCA HMAC key algorithm implies a digest (e.g., HmacSHA256 key algorithm
-                    // implies SHA-256 digest). Because keymaster HMAC key is authorized only for
-                    // one digest, we don't let algorithm parameter spec override the digest implied
-                    // by the key. If the spec specifies digests at all, it must specify only one
-                    // digest, the only implied by key algorithm.
-                    mKeymasterDigests = new int[] {mKeymasterDigest};
-                    if (spec.isDigestsSpecified()) {
-                        // Digest(s) explicitly specified in the spec. Check that the list
-                        // consists of exactly one digest, the one implied by key algorithm.
-                        int[] keymasterDigestsFromSpec =
-                                KeyProperties.Digest.allToKeymaster(spec.getDigests());
-                        if ((keymasterDigestsFromSpec.length != 1)
-                                || (keymasterDigestsFromSpec[0] != mKeymasterDigest)) {
-                            throw new InvalidAlgorithmParameterException(
-                                    "Unsupported digests specification: "
-                                    + Arrays.asList(spec.getDigests()) + ". Only "
-                                    + KeyProperties.Digest.fromKeymaster(mKeymasterDigest)
-                                    + " supported for this HMAC key algorithm");
-                        }
-                    }
-                } else {
-                    // Key algorithm does not imply a digest.
-                    if (spec.isDigestsSpecified()) {
-                        mKeymasterDigests = KeyProperties.Digest.allToKeymaster(spec.getDigests());
-                    } else {
-                        mKeymasterDigests = EmptyArray.INT;
-                    }
-                }
-
-                // Check that user authentication related parameters are acceptable. This method
-                // will throw an IllegalStateException if there are issues (e.g., secure lock screen
-                // not set up).
-                KeymasterUtils.addUserAuthArgs(new KeymasterArguments(), spec);
-            } catch (IllegalStateException | IllegalArgumentException e) {
-                throw new InvalidAlgorithmParameterException(e);
-            }
-
-            success = true;
-        } finally {
-            if (!success) {
-                resetAll();
-            }
-        }
-    }
-
-    private void resetAll() {
-        mSpec = null;
-        mRng = null;
-        mKeySizeBits = -1;
-        mKeymasterPurposes = null;
-        mKeymasterPaddings = null;
-        mKeymasterBlockModes = null;
-    }
-
-    @Override
-    protected SecretKey engineGenerateKey() {
-        KeyGenParameterSpec spec = mSpec;
-        if (spec == null) {
-            throw new IllegalStateException("Not initialized");
-        }
-
-        KeymasterArguments args = new KeymasterArguments();
-        args.addUnsignedInt(KeymasterDefs.KM_TAG_KEY_SIZE, mKeySizeBits);
-        args.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, mKeymasterAlgorithm);
-        args.addEnums(KeymasterDefs.KM_TAG_PURPOSE, mKeymasterPurposes);
-        args.addEnums(KeymasterDefs.KM_TAG_BLOCK_MODE, mKeymasterBlockModes);
-        args.addEnums(KeymasterDefs.KM_TAG_PADDING, mKeymasterPaddings);
-        args.addEnums(KeymasterDefs.KM_TAG_DIGEST, mKeymasterDigests);
-        KeymasterUtils.addUserAuthArgs(args, spec);
-        KeymasterUtils.addMinMacLengthAuthorizationIfNecessary(
-                args,
-                mKeymasterAlgorithm,
-                mKeymasterBlockModes,
-                mKeymasterDigests);
-        args.addDateIfNotNull(KeymasterDefs.KM_TAG_ACTIVE_DATETIME, spec.getKeyValidityStart());
-        args.addDateIfNotNull(KeymasterDefs.KM_TAG_ORIGINATION_EXPIRE_DATETIME,
-                spec.getKeyValidityForOriginationEnd());
-        args.addDateIfNotNull(KeymasterDefs.KM_TAG_USAGE_EXPIRE_DATETIME,
-                spec.getKeyValidityForConsumptionEnd());
-
-        if (((spec.getPurposes() & KeyProperties.PURPOSE_ENCRYPT) != 0)
-                && (!spec.isRandomizedEncryptionRequired())) {
-            // Permit caller-provided IV when encrypting with this key
-            args.addBoolean(KeymasterDefs.KM_TAG_CALLER_NONCE);
-        }
-
-        byte[] additionalEntropy =
-                KeyStoreCryptoOperationUtils.getRandomBytesToMixIntoKeystoreRng(
-                        mRng, (mKeySizeBits + 7) / 8);
-        int flags = 0;
-        if (spec.isStrongBoxBacked()) {
-            flags |= KeyStore.FLAG_STRONGBOX;
-        }
-        if (spec.isCriticalToDeviceEncryption()) {
-            flags |= KeyStore.FLAG_CRITICAL_TO_DEVICE_ENCRYPTION;
-        }
-        String keyAliasInKeystore = Credentials.USER_PRIVATE_KEY + spec.getKeystoreAlias();
-        KeyCharacteristics resultingKeyCharacteristics = new KeyCharacteristics();
-        boolean success = false;
-        try {
-            Credentials.deleteAllTypesForAlias(mKeyStore, spec.getKeystoreAlias(), spec.getUid());
-            int errorCode = mKeyStore.generateKey(
-                    keyAliasInKeystore,
-                    args,
-                    additionalEntropy,
-                    spec.getUid(),
-                    flags,
-                    resultingKeyCharacteristics);
-            if (errorCode != KeyStore.NO_ERROR) {
-                if (errorCode == KeyStore.HARDWARE_TYPE_UNAVAILABLE) {
-                    throw new StrongBoxUnavailableException("Failed to generate key");
-                } else {
-                    throw new ProviderException(
-                            "Keystore operation failed", KeyStore.getKeyStoreException(errorCode));
-                }
-            }
-            @KeyProperties.KeyAlgorithmEnum String keyAlgorithmJCA;
-            try {
-                keyAlgorithmJCA = KeyProperties.KeyAlgorithm.fromKeymasterSecretKeyAlgorithm(
-                        mKeymasterAlgorithm, mKeymasterDigest);
-            } catch (IllegalArgumentException e) {
-                throw new ProviderException("Failed to obtain JCA secret key algorithm name", e);
-            }
-            SecretKey result = new AndroidKeyStoreSecretKey(
-                    keyAliasInKeystore, spec.getUid(), keyAlgorithmJCA);
-            success = true;
-            return result;
-        } finally {
-            if (!success) {
-                Credentials.deleteAllTypesForAlias(
-                        mKeyStore, spec.getKeystoreAlias(), spec.getUid());
-            }
-        }
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreKeyPairGeneratorSpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreKeyPairGeneratorSpi.java
deleted file mode 100644
index 988838b..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreKeyPairGeneratorSpi.java
+++ /dev/null
@@ -1,986 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.annotation.Nullable;
-import android.content.Context;
-import android.os.Build;
-import android.security.Credentials;
-import android.security.KeyPairGeneratorSpec;
-import android.security.KeyStore;
-import android.security.keymaster.KeyCharacteristics;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterCertificateChain;
-import android.security.keymaster.KeymasterDefs;
-import android.telephony.TelephonyManager;
-import android.util.ArraySet;
-
-import com.android.internal.org.bouncycastle.asn1.ASN1EncodableVector;
-import com.android.internal.org.bouncycastle.asn1.ASN1InputStream;
-import com.android.internal.org.bouncycastle.asn1.ASN1Integer;
-import com.android.internal.org.bouncycastle.asn1.ASN1ObjectIdentifier;
-import com.android.internal.org.bouncycastle.asn1.DERBitString;
-import com.android.internal.org.bouncycastle.asn1.DERNull;
-import com.android.internal.org.bouncycastle.asn1.DERSequence;
-import com.android.internal.org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
-import com.android.internal.org.bouncycastle.asn1.x509.AlgorithmIdentifier;
-import com.android.internal.org.bouncycastle.asn1.x509.Certificate;
-import com.android.internal.org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
-import com.android.internal.org.bouncycastle.asn1.x509.TBSCertificate;
-import com.android.internal.org.bouncycastle.asn1.x509.Time;
-import com.android.internal.org.bouncycastle.asn1.x509.V3TBSCertificateGenerator;
-import com.android.internal.org.bouncycastle.asn1.x9.X9ObjectIdentifiers;
-import com.android.internal.org.bouncycastle.jce.X509Principal;
-import com.android.internal.org.bouncycastle.jce.provider.X509CertificateObject;
-import com.android.internal.org.bouncycastle.x509.X509V3CertificateGenerator;
-
-import libcore.util.EmptyArray;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.math.BigInteger;
-import java.nio.charset.StandardCharsets;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.KeyPair;
-import java.security.KeyPairGenerator;
-import java.security.KeyPairGeneratorSpi;
-import java.security.PrivateKey;
-import java.security.ProviderException;
-import java.security.PublicKey;
-import java.security.SecureRandom;
-import java.security.UnrecoverableKeyException;
-import java.security.cert.CertificateEncodingException;
-import java.security.cert.CertificateParsingException;
-import java.security.cert.X509Certificate;
-import java.security.spec.AlgorithmParameterSpec;
-import java.security.spec.ECGenParameterSpec;
-import java.security.spec.RSAKeyGenParameterSpec;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.Locale;
-import java.util.Map;
-import java.util.Set;
-
-/**
- * Provides a way to create instances of a KeyPair which will be placed in the
- * Android keystore service usable only by the application that called it. This
- * can be used in conjunction with
- * {@link java.security.KeyStore#getInstance(String)} using the
- * {@code "AndroidKeyStore"} type.
- * <p>
- * This class can not be directly instantiated and must instead be used via the
- * {@link KeyPairGenerator#getInstance(String)
- * KeyPairGenerator.getInstance("AndroidKeyStore")} API.
- *
- * @hide
- */
-public abstract class AndroidKeyStoreKeyPairGeneratorSpi extends KeyPairGeneratorSpi {
-
-    public static class RSA extends AndroidKeyStoreKeyPairGeneratorSpi {
-        public RSA() {
-            super(KeymasterDefs.KM_ALGORITHM_RSA);
-        }
-    }
-
-    public static class EC extends AndroidKeyStoreKeyPairGeneratorSpi {
-        public EC() {
-            super(KeymasterDefs.KM_ALGORITHM_EC);
-        }
-    }
-
-    /*
-     * These must be kept in sync with system/security/keystore/defaults.h
-     */
-
-    /* EC */
-    private static final int EC_DEFAULT_KEY_SIZE = 256;
-
-    /* RSA */
-    private static final int RSA_DEFAULT_KEY_SIZE = 2048;
-    private static final int RSA_MIN_KEY_SIZE = 512;
-    private static final int RSA_MAX_KEY_SIZE = 8192;
-
-    private static final Map<String, Integer> SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE =
-            new HashMap<String, Integer>();
-    private static final List<String> SUPPORTED_EC_NIST_CURVE_NAMES = new ArrayList<String>();
-    private static final List<Integer> SUPPORTED_EC_NIST_CURVE_SIZES = new ArrayList<Integer>();
-    static {
-        // Aliases for NIST P-224
-        SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.put("p-224", 224);
-        SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.put("secp224r1", 224);
-
-
-        // Aliases for NIST P-256
-        SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.put("p-256", 256);
-        SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.put("secp256r1", 256);
-        SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.put("prime256v1", 256);
-
-        // Aliases for NIST P-384
-        SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.put("p-384", 384);
-        SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.put("secp384r1", 384);
-
-        // Aliases for NIST P-521
-        SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.put("p-521", 521);
-        SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.put("secp521r1", 521);
-
-        SUPPORTED_EC_NIST_CURVE_NAMES.addAll(SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.keySet());
-        Collections.sort(SUPPORTED_EC_NIST_CURVE_NAMES);
-
-        SUPPORTED_EC_NIST_CURVE_SIZES.addAll(
-                new HashSet<Integer>(SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.values()));
-        Collections.sort(SUPPORTED_EC_NIST_CURVE_SIZES);
-    }
-
-    private final int mOriginalKeymasterAlgorithm;
-
-    private KeyStore mKeyStore;
-
-    private KeyGenParameterSpec mSpec;
-
-    private String mEntryAlias;
-    private int mEntryUid;
-    private boolean mEncryptionAtRestRequired;
-    private @KeyProperties.KeyAlgorithmEnum String mJcaKeyAlgorithm;
-    private int mKeymasterAlgorithm = -1;
-    private int mKeySizeBits;
-    private SecureRandom mRng;
-
-    private int[] mKeymasterPurposes;
-    private int[] mKeymasterBlockModes;
-    private int[] mKeymasterEncryptionPaddings;
-    private int[] mKeymasterSignaturePaddings;
-    private int[] mKeymasterDigests;
-
-    private BigInteger mRSAPublicExponent;
-
-    protected AndroidKeyStoreKeyPairGeneratorSpi(int keymasterAlgorithm) {
-        mOriginalKeymasterAlgorithm = keymasterAlgorithm;
-    }
-
-    @SuppressWarnings("deprecation")
-    @Override
-    public void initialize(int keysize, SecureRandom random) {
-        throw new IllegalArgumentException(
-                KeyGenParameterSpec.class.getName() + " or " + KeyPairGeneratorSpec.class.getName()
-                + " required to initialize this KeyPairGenerator");
-    }
-
-    @SuppressWarnings("deprecation")
-    @Override
-    public void initialize(AlgorithmParameterSpec params, SecureRandom random)
-            throws InvalidAlgorithmParameterException {
-        resetAll();
-
-        boolean success = false;
-        try {
-            if (params == null) {
-                throw new InvalidAlgorithmParameterException(
-                        "Must supply params of type " + KeyGenParameterSpec.class.getName()
-                        + " or " + KeyPairGeneratorSpec.class.getName());
-            }
-
-            KeyGenParameterSpec spec;
-            boolean encryptionAtRestRequired = false;
-            int keymasterAlgorithm = mOriginalKeymasterAlgorithm;
-            if (params instanceof KeyGenParameterSpec) {
-                spec = (KeyGenParameterSpec) params;
-            } else if (params instanceof KeyPairGeneratorSpec) {
-                // Legacy/deprecated spec
-                KeyPairGeneratorSpec legacySpec = (KeyPairGeneratorSpec) params;
-                try {
-                    KeyGenParameterSpec.Builder specBuilder;
-                    String specKeyAlgorithm = legacySpec.getKeyType();
-                    if (specKeyAlgorithm != null) {
-                        // Spec overrides the generator's default key algorithm
-                        try {
-                            keymasterAlgorithm =
-                                    KeyProperties.KeyAlgorithm.toKeymasterAsymmetricKeyAlgorithm(
-                                            specKeyAlgorithm);
-                        } catch (IllegalArgumentException e) {
-                            throw new InvalidAlgorithmParameterException(
-                                    "Invalid key type in parameters", e);
-                        }
-                    }
-                    switch (keymasterAlgorithm) {
-                        case KeymasterDefs.KM_ALGORITHM_EC:
-                            specBuilder = new KeyGenParameterSpec.Builder(
-                                    legacySpec.getKeystoreAlias(),
-                                    KeyProperties.PURPOSE_SIGN
-                                    | KeyProperties.PURPOSE_VERIFY);
-                            // Authorized to be used with any digest (including no digest).
-                            // MD5 was never offered for Android Keystore for ECDSA.
-                            specBuilder.setDigests(
-                                    KeyProperties.DIGEST_NONE,
-                                    KeyProperties.DIGEST_SHA1,
-                                    KeyProperties.DIGEST_SHA224,
-                                    KeyProperties.DIGEST_SHA256,
-                                    KeyProperties.DIGEST_SHA384,
-                                    KeyProperties.DIGEST_SHA512);
-                            break;
-                        case KeymasterDefs.KM_ALGORITHM_RSA:
-                            specBuilder = new KeyGenParameterSpec.Builder(
-                                    legacySpec.getKeystoreAlias(),
-                                    KeyProperties.PURPOSE_ENCRYPT
-                                    | KeyProperties.PURPOSE_DECRYPT
-                                    | KeyProperties.PURPOSE_SIGN
-                                    | KeyProperties.PURPOSE_VERIFY);
-                            // Authorized to be used with any digest (including no digest).
-                            specBuilder.setDigests(
-                                    KeyProperties.DIGEST_NONE,
-                                    KeyProperties.DIGEST_MD5,
-                                    KeyProperties.DIGEST_SHA1,
-                                    KeyProperties.DIGEST_SHA224,
-                                    KeyProperties.DIGEST_SHA256,
-                                    KeyProperties.DIGEST_SHA384,
-                                    KeyProperties.DIGEST_SHA512);
-                            // Authorized to be used with any encryption and signature padding
-                            // schemes (including no padding).
-                            specBuilder.setEncryptionPaddings(
-                                    KeyProperties.ENCRYPTION_PADDING_NONE,
-                                    KeyProperties.ENCRYPTION_PADDING_RSA_PKCS1,
-                                    KeyProperties.ENCRYPTION_PADDING_RSA_OAEP);
-                            specBuilder.setSignaturePaddings(
-                                    KeyProperties.SIGNATURE_PADDING_RSA_PKCS1,
-                                    KeyProperties.SIGNATURE_PADDING_RSA_PSS);
-                            // Disable randomized encryption requirement to support encryption
-                            // padding NONE above.
-                            specBuilder.setRandomizedEncryptionRequired(false);
-                            break;
-                        default:
-                            throw new ProviderException(
-                                    "Unsupported algorithm: " + mKeymasterAlgorithm);
-                    }
-
-                    if (legacySpec.getKeySize() != -1) {
-                        specBuilder.setKeySize(legacySpec.getKeySize());
-                    }
-                    if (legacySpec.getAlgorithmParameterSpec() != null) {
-                        specBuilder.setAlgorithmParameterSpec(
-                                legacySpec.getAlgorithmParameterSpec());
-                    }
-                    specBuilder.setCertificateSubject(legacySpec.getSubjectDN());
-                    specBuilder.setCertificateSerialNumber(legacySpec.getSerialNumber());
-                    specBuilder.setCertificateNotBefore(legacySpec.getStartDate());
-                    specBuilder.setCertificateNotAfter(legacySpec.getEndDate());
-                    encryptionAtRestRequired = legacySpec.isEncryptionRequired();
-                    specBuilder.setUserAuthenticationRequired(false);
-
-                    spec = specBuilder.build();
-                } catch (NullPointerException | IllegalArgumentException e) {
-                    throw new InvalidAlgorithmParameterException(e);
-                }
-            } else {
-                throw new InvalidAlgorithmParameterException(
-                        "Unsupported params class: " + params.getClass().getName()
-                        + ". Supported: " + KeyGenParameterSpec.class.getName()
-                        + ", " + KeyPairGeneratorSpec.class.getName());
-            }
-
-            mEntryAlias = spec.getKeystoreAlias();
-            mEntryUid = spec.getUid();
-            mSpec = spec;
-            mKeymasterAlgorithm = keymasterAlgorithm;
-            mEncryptionAtRestRequired = encryptionAtRestRequired;
-            mKeySizeBits = spec.getKeySize();
-            initAlgorithmSpecificParameters();
-            if (mKeySizeBits == -1) {
-                mKeySizeBits = getDefaultKeySize(keymasterAlgorithm);
-            }
-            checkValidKeySize(keymasterAlgorithm, mKeySizeBits, mSpec.isStrongBoxBacked());
-
-            if (spec.getKeystoreAlias() == null) {
-                throw new InvalidAlgorithmParameterException("KeyStore entry alias not provided");
-            }
-
-            String jcaKeyAlgorithm;
-            try {
-                jcaKeyAlgorithm = KeyProperties.KeyAlgorithm.fromKeymasterAsymmetricKeyAlgorithm(
-                        keymasterAlgorithm);
-                mKeymasterPurposes = KeyProperties.Purpose.allToKeymaster(spec.getPurposes());
-                mKeymasterBlockModes = KeyProperties.BlockMode.allToKeymaster(spec.getBlockModes());
-                mKeymasterEncryptionPaddings = KeyProperties.EncryptionPadding.allToKeymaster(
-                        spec.getEncryptionPaddings());
-                if (((spec.getPurposes() & KeyProperties.PURPOSE_ENCRYPT) != 0)
-                        && (spec.isRandomizedEncryptionRequired())) {
-                    for (int keymasterPadding : mKeymasterEncryptionPaddings) {
-                        if (!KeymasterUtils
-                                .isKeymasterPaddingSchemeIndCpaCompatibleWithAsymmetricCrypto(
-                                        keymasterPadding)) {
-                            throw new InvalidAlgorithmParameterException(
-                                    "Randomized encryption (IND-CPA) required but may be violated"
-                                    + " by padding scheme: "
-                                    + KeyProperties.EncryptionPadding.fromKeymaster(
-                                            keymasterPadding)
-                                    + ". See " + KeyGenParameterSpec.class.getName()
-                                    + " documentation.");
-                        }
-                    }
-                }
-                mKeymasterSignaturePaddings = KeyProperties.SignaturePadding.allToKeymaster(
-                        spec.getSignaturePaddings());
-                if (spec.isDigestsSpecified()) {
-                    mKeymasterDigests = KeyProperties.Digest.allToKeymaster(spec.getDigests());
-                } else {
-                    mKeymasterDigests = EmptyArray.INT;
-                }
-
-                // Check that user authentication related parameters are acceptable. This method
-                // will throw an IllegalStateException if there are issues (e.g., secure lock screen
-                // not set up).
-                KeymasterUtils.addUserAuthArgs(new KeymasterArguments(), mSpec);
-            } catch (IllegalArgumentException | IllegalStateException e) {
-                throw new InvalidAlgorithmParameterException(e);
-            }
-
-            mJcaKeyAlgorithm = jcaKeyAlgorithm;
-            mRng = random;
-            mKeyStore = KeyStore.getInstance();
-            success = true;
-        } finally {
-            if (!success) {
-                resetAll();
-            }
-        }
-    }
-
-    private void resetAll() {
-        mEntryAlias = null;
-        mEntryUid = KeyStore.UID_SELF;
-        mJcaKeyAlgorithm = null;
-        mKeymasterAlgorithm = -1;
-        mKeymasterPurposes = null;
-        mKeymasterBlockModes = null;
-        mKeymasterEncryptionPaddings = null;
-        mKeymasterSignaturePaddings = null;
-        mKeymasterDigests = null;
-        mKeySizeBits = 0;
-        mSpec = null;
-        mRSAPublicExponent = null;
-        mEncryptionAtRestRequired = false;
-        mRng = null;
-        mKeyStore = null;
-    }
-
-    private void initAlgorithmSpecificParameters() throws InvalidAlgorithmParameterException {
-        AlgorithmParameterSpec algSpecificSpec = mSpec.getAlgorithmParameterSpec();
-        switch (mKeymasterAlgorithm) {
-            case KeymasterDefs.KM_ALGORITHM_RSA:
-            {
-                BigInteger publicExponent = null;
-                if (algSpecificSpec instanceof RSAKeyGenParameterSpec) {
-                    RSAKeyGenParameterSpec rsaSpec = (RSAKeyGenParameterSpec) algSpecificSpec;
-                    if (mKeySizeBits == -1) {
-                        mKeySizeBits = rsaSpec.getKeysize();
-                    } else if (mKeySizeBits != rsaSpec.getKeysize()) {
-                        throw new InvalidAlgorithmParameterException("RSA key size must match "
-                                + " between " + mSpec + " and " + algSpecificSpec
-                                + ": " + mKeySizeBits + " vs " + rsaSpec.getKeysize());
-                    }
-                    publicExponent = rsaSpec.getPublicExponent();
-                } else if (algSpecificSpec != null) {
-                    throw new InvalidAlgorithmParameterException(
-                        "RSA may only use RSAKeyGenParameterSpec");
-                }
-                if (publicExponent == null) {
-                    publicExponent = RSAKeyGenParameterSpec.F4;
-                }
-                if (publicExponent.compareTo(BigInteger.ZERO) < 1) {
-                    throw new InvalidAlgorithmParameterException(
-                            "RSA public exponent must be positive: " + publicExponent);
-                }
-                if (publicExponent.compareTo(KeymasterArguments.UINT64_MAX_VALUE) > 0) {
-                    throw new InvalidAlgorithmParameterException(
-                            "Unsupported RSA public exponent: " + publicExponent
-                            + ". Maximum supported value: " + KeymasterArguments.UINT64_MAX_VALUE);
-                }
-                mRSAPublicExponent = publicExponent;
-                break;
-            }
-            case KeymasterDefs.KM_ALGORITHM_EC:
-                if (algSpecificSpec instanceof ECGenParameterSpec) {
-                    ECGenParameterSpec ecSpec = (ECGenParameterSpec) algSpecificSpec;
-                    String curveName = ecSpec.getName();
-                    Integer ecSpecKeySizeBits = SUPPORTED_EC_NIST_CURVE_NAME_TO_SIZE.get(
-                            curveName.toLowerCase(Locale.US));
-                    if (ecSpecKeySizeBits == null) {
-                        throw new InvalidAlgorithmParameterException(
-                                "Unsupported EC curve name: " + curveName
-                                + ". Supported: " + SUPPORTED_EC_NIST_CURVE_NAMES);
-                    }
-                    if (mKeySizeBits == -1) {
-                        mKeySizeBits = ecSpecKeySizeBits;
-                    } else if (mKeySizeBits != ecSpecKeySizeBits) {
-                        throw new InvalidAlgorithmParameterException("EC key size must match "
-                                + " between " + mSpec + " and " + algSpecificSpec
-                                + ": " + mKeySizeBits + " vs " + ecSpecKeySizeBits);
-                    }
-                } else if (algSpecificSpec != null) {
-                    throw new InvalidAlgorithmParameterException(
-                        "EC may only use ECGenParameterSpec");
-                }
-                break;
-            default:
-                throw new ProviderException("Unsupported algorithm: " + mKeymasterAlgorithm);
-        }
-    }
-
-    @Override
-    public KeyPair generateKeyPair() {
-        if (mKeyStore == null || mSpec == null) {
-            throw new IllegalStateException("Not initialized");
-        }
-
-        int flags = (mEncryptionAtRestRequired) ? KeyStore.FLAG_ENCRYPTED : 0;
-        if (((flags & KeyStore.FLAG_ENCRYPTED) != 0)
-                && (mKeyStore.state() != KeyStore.State.UNLOCKED)) {
-            throw new IllegalStateException(
-                    "Encryption at rest using secure lock screen credential requested for key pair"
-                    + ", but the user has not yet entered the credential");
-        }
-
-        if (mSpec.isStrongBoxBacked()) {
-            flags |= KeyStore.FLAG_STRONGBOX;
-        }
-        if (mSpec.isCriticalToDeviceEncryption()) {
-            flags |= KeyStore.FLAG_CRITICAL_TO_DEVICE_ENCRYPTION;
-        }
-
-        byte[] additionalEntropy =
-                KeyStoreCryptoOperationUtils.getRandomBytesToMixIntoKeystoreRng(
-                        mRng, (mKeySizeBits + 7) / 8);
-
-        Credentials.deleteAllTypesForAlias(mKeyStore, mEntryAlias, mEntryUid);
-        final String privateKeyAlias = Credentials.USER_PRIVATE_KEY + mEntryAlias;
-        boolean success = false;
-        try {
-            generateKeystoreKeyPair(
-                    privateKeyAlias, constructKeyGenerationArguments(), additionalEntropy, flags);
-            KeyPair keyPair = loadKeystoreKeyPair(privateKeyAlias);
-
-            storeCertificateChain(flags, createCertificateChain(privateKeyAlias, keyPair));
-
-            success = true;
-            return keyPair;
-        } catch (ProviderException | IllegalArgumentException | DeviceIdAttestationException e) {
-          if ((mSpec.getPurposes() & KeyProperties.PURPOSE_WRAP_KEY) != 0) {
-              throw new SecureKeyImportUnavailableException(e);
-          } else {
-                throw new ProviderException(e);
-          }
-        } finally {
-            if (!success) {
-                Credentials.deleteAllTypesForAlias(mKeyStore, mEntryAlias, mEntryUid);
-            }
-        }
-    }
-
-    private Iterable<byte[]> createCertificateChain(final String privateKeyAlias, KeyPair keyPair)
-            throws ProviderException, DeviceIdAttestationException {
-        byte[] challenge = mSpec.getAttestationChallenge();
-        if (challenge != null) {
-            KeymasterArguments args = new KeymasterArguments();
-            args.addBytes(KeymasterDefs.KM_TAG_ATTESTATION_CHALLENGE, challenge);
-
-            if (mSpec.isDevicePropertiesAttestationIncluded()) {
-                args.addBytes(KeymasterDefs.KM_TAG_ATTESTATION_ID_BRAND,
-                        Build.BRAND.getBytes(StandardCharsets.UTF_8));
-                args.addBytes(KeymasterDefs.KM_TAG_ATTESTATION_ID_DEVICE,
-                        Build.DEVICE.getBytes(StandardCharsets.UTF_8));
-                args.addBytes(KeymasterDefs.KM_TAG_ATTESTATION_ID_PRODUCT,
-                        Build.PRODUCT.getBytes(StandardCharsets.UTF_8));
-                args.addBytes(KeymasterDefs.KM_TAG_ATTESTATION_ID_MANUFACTURER,
-                        Build.MANUFACTURER.getBytes(StandardCharsets.UTF_8));
-                args.addBytes(KeymasterDefs.KM_TAG_ATTESTATION_ID_MODEL,
-                        Build.MODEL.getBytes(StandardCharsets.UTF_8));
-            }
-
-            int[] idTypes = mSpec.getAttestationIds();
-            if (idTypes != null) {
-                final Set<Integer> idTypesSet = new ArraySet<>(idTypes.length);
-                for (int idType : idTypes) {
-                    idTypesSet.add(idType);
-                }
-                TelephonyManager telephonyService = null;
-                if (idTypesSet.contains(AttestationUtils.ID_TYPE_IMEI)
-                        || idTypesSet.contains(AttestationUtils.ID_TYPE_MEID)) {
-                    telephonyService =
-                            (TelephonyManager) KeyStore.getApplicationContext().getSystemService(
-                                    Context.TELEPHONY_SERVICE);
-                    if (telephonyService == null) {
-                        throw new DeviceIdAttestationException(
-                                "Unable to access telephony service");
-                    }
-                }
-                for (final Integer idType : idTypesSet) {
-                    switch (idType) {
-                        case AttestationUtils.ID_TYPE_SERIAL:
-                            args.addBytes(KeymasterDefs.KM_TAG_ATTESTATION_ID_SERIAL,
-                                    Build.getSerial().getBytes(StandardCharsets.UTF_8)
-                            );
-                            break;
-                        case AttestationUtils.ID_TYPE_IMEI: {
-                            final String imei = telephonyService.getImei(0);
-                            if (imei == null) {
-                                throw new DeviceIdAttestationException("Unable to retrieve IMEI");
-                            }
-                            args.addBytes(KeymasterDefs.KM_TAG_ATTESTATION_ID_IMEI,
-                                    imei.getBytes(StandardCharsets.UTF_8)
-                            );
-                            break;
-                        }
-                        case AttestationUtils.ID_TYPE_MEID: {
-                            final String meid = telephonyService.getMeid(0);
-                            if (meid == null) {
-                                throw new DeviceIdAttestationException("Unable to retrieve MEID");
-                            }
-                            args.addBytes(KeymasterDefs.KM_TAG_ATTESTATION_ID_MEID,
-                                    meid.getBytes(StandardCharsets.UTF_8)
-                            );
-                            break;
-                        }
-                        case AttestationUtils.USE_INDIVIDUAL_ATTESTATION: {
-                            args.addBoolean(KeymasterDefs.KM_TAG_DEVICE_UNIQUE_ATTESTATION);
-                            break;
-                        }
-                        default:
-                            throw new IllegalArgumentException("Unknown device ID type " + idType);
-                    }
-                }
-            }
-
-            return getAttestationChain(privateKeyAlias, keyPair, args);
-        }
-
-        // Very short certificate chain in the non-attestation case.
-        return Collections.singleton(generateSelfSignedCertificateBytes(keyPair));
-    }
-
-    private void generateKeystoreKeyPair(final String privateKeyAlias, KeymasterArguments args,
-            byte[] additionalEntropy, final int flags) throws ProviderException {
-        KeyCharacteristics resultingKeyCharacteristics = new KeyCharacteristics();
-        int errorCode = mKeyStore.generateKey(privateKeyAlias, args, additionalEntropy,
-                mEntryUid, flags, resultingKeyCharacteristics);
-        if (errorCode != KeyStore.NO_ERROR) {
-            if (errorCode == KeyStore.HARDWARE_TYPE_UNAVAILABLE) {
-                throw new StrongBoxUnavailableException("Failed to generate key pair");
-            } else {
-                throw new ProviderException(
-                        "Failed to generate key pair", KeyStore.getKeyStoreException(errorCode));
-            }
-        }
-    }
-
-    private KeyPair loadKeystoreKeyPair(final String privateKeyAlias) throws ProviderException {
-        try {
-            KeyPair result  = AndroidKeyStoreProvider.loadAndroidKeyStoreKeyPairFromKeystore(
-                    mKeyStore, privateKeyAlias, mEntryUid);
-            if (!mJcaKeyAlgorithm.equalsIgnoreCase(result.getPrivate().getAlgorithm())) {
-                throw new ProviderException(
-                        "Generated key pair algorithm does not match requested algorithm: "
-                                + result.getPrivate().getAlgorithm() + " vs " + mJcaKeyAlgorithm);
-            }
-            return result;
-        } catch (UnrecoverableKeyException | KeyPermanentlyInvalidatedException e) {
-            throw new ProviderException("Failed to load generated key pair from keystore", e);
-        }
-    }
-
-    private KeymasterArguments constructKeyGenerationArguments()
-            throws IllegalArgumentException, DeviceIdAttestationException {
-        KeymasterArguments args = new KeymasterArguments();
-        args.addUnsignedInt(KeymasterDefs.KM_TAG_KEY_SIZE, mKeySizeBits);
-        args.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, mKeymasterAlgorithm);
-        args.addEnums(KeymasterDefs.KM_TAG_PURPOSE, mKeymasterPurposes);
-        args.addEnums(KeymasterDefs.KM_TAG_BLOCK_MODE, mKeymasterBlockModes);
-        args.addEnums(KeymasterDefs.KM_TAG_PADDING, mKeymasterEncryptionPaddings);
-        args.addEnums(KeymasterDefs.KM_TAG_PADDING, mKeymasterSignaturePaddings);
-        args.addEnums(KeymasterDefs.KM_TAG_DIGEST, mKeymasterDigests);
-
-        KeymasterUtils.addUserAuthArgs(args, mSpec);
-        args.addDateIfNotNull(KeymasterDefs.KM_TAG_ACTIVE_DATETIME, mSpec.getKeyValidityStart());
-        args.addDateIfNotNull(KeymasterDefs.KM_TAG_ORIGINATION_EXPIRE_DATETIME,
-                mSpec.getKeyValidityForOriginationEnd());
-        args.addDateIfNotNull(KeymasterDefs.KM_TAG_USAGE_EXPIRE_DATETIME,
-                mSpec.getKeyValidityForConsumptionEnd());
-        addAlgorithmSpecificParameters(args);
-
-        if (mSpec.isUniqueIdIncluded()) {
-            args.addBoolean(KeymasterDefs.KM_TAG_INCLUDE_UNIQUE_ID);
-        }
-        return args;
-    }
-
-    private void storeCertificateChain(final int flags, Iterable<byte[]> iterable)
-            throws ProviderException {
-        Iterator<byte[]> iter = iterable.iterator();
-        storeCertificate(
-                Credentials.USER_CERTIFICATE, iter.next(), flags, "Failed to store certificate");
-
-        if (!iter.hasNext()) {
-            return;
-        }
-
-        ByteArrayOutputStream certificateConcatenationStream = new ByteArrayOutputStream();
-        while (iter.hasNext()) {
-            byte[] data = iter.next();
-            certificateConcatenationStream.write(data, 0, data.length);
-        }
-
-        storeCertificate(Credentials.CA_CERTIFICATE, certificateConcatenationStream.toByteArray(),
-                flags, "Failed to store attestation CA certificate");
-    }
-
-    private void storeCertificate(String prefix, byte[] certificateBytes, final int flags,
-            String failureMessage) throws ProviderException {
-        int insertErrorCode = mKeyStore.insert(
-                prefix + mEntryAlias,
-                certificateBytes,
-                mEntryUid,
-                flags);
-        if (insertErrorCode != KeyStore.NO_ERROR) {
-            throw new ProviderException(failureMessage,
-                    KeyStore.getKeyStoreException(insertErrorCode));
-        }
-    }
-
-    private byte[] generateSelfSignedCertificateBytes(KeyPair keyPair) throws ProviderException {
-        try {
-            return generateSelfSignedCertificate(keyPair.getPrivate(), keyPair.getPublic())
-                    .getEncoded();
-        } catch (IOException | CertificateParsingException e) {
-            throw new ProviderException("Failed to generate self-signed certificate", e);
-        } catch (CertificateEncodingException e) {
-            throw new ProviderException(
-                    "Failed to obtain encoded form of self-signed certificate", e);
-        }
-    }
-
-    private Iterable<byte[]> getAttestationChain(String privateKeyAlias,
-            KeyPair keyPair, KeymasterArguments args)
-                    throws ProviderException {
-        final KeymasterCertificateChain outChain = new KeymasterCertificateChain();
-        final int errorCode;
-        if (mSpec.isDevicePropertiesAttestationIncluded()
-                && mSpec.getAttestationChallenge() == null) {
-            throw new ProviderException("An attestation challenge must be provided when requesting "
-                    + "device properties attestation.");
-        }
-        errorCode = mKeyStore.attestKey(privateKeyAlias, args, outChain);
-        if (errorCode != KeyStore.NO_ERROR) {
-            throw new ProviderException("Failed to generate attestation certificate chain",
-                    KeyStore.getKeyStoreException(errorCode));
-        }
-        Collection<byte[]> chain = outChain.getCertificates();
-        if (chain.size() < 2) {
-            throw new ProviderException("Attestation certificate chain contained "
-                    + chain.size() + " entries. At least two are required.");
-        }
-        return chain;
-    }
-
-    private void addAlgorithmSpecificParameters(KeymasterArguments keymasterArgs) {
-        switch (mKeymasterAlgorithm) {
-            case KeymasterDefs.KM_ALGORITHM_RSA:
-                keymasterArgs.addUnsignedLong(
-                        KeymasterDefs.KM_TAG_RSA_PUBLIC_EXPONENT, mRSAPublicExponent);
-                break;
-            case KeymasterDefs.KM_ALGORITHM_EC:
-                break;
-            default:
-                throw new ProviderException("Unsupported algorithm: " + mKeymasterAlgorithm);
-        }
-    }
-
-    private X509Certificate generateSelfSignedCertificate(PrivateKey privateKey,
-            PublicKey publicKey) throws CertificateParsingException, IOException {
-        String signatureAlgorithm =
-                getCertificateSignatureAlgorithm(mKeymasterAlgorithm, mKeySizeBits, mSpec);
-        if (signatureAlgorithm == null) {
-            // Key cannot be used to sign a certificate
-            return generateSelfSignedCertificateWithFakeSignature(publicKey);
-        } else {
-            // Key can be used to sign a certificate
-            try {
-                return generateSelfSignedCertificateWithValidSignature(
-                        privateKey, publicKey, signatureAlgorithm);
-            } catch (Exception e) {
-                // Failed to generate the self-signed certificate with valid signature. Fall back
-                // to generating a self-signed certificate with a fake signature. This is done for
-                // all exception types because we prefer key pair generation to succeed and end up
-                // producing a self-signed certificate with an invalid signature to key pair
-                // generation failing.
-                return generateSelfSignedCertificateWithFakeSignature(publicKey);
-            }
-        }
-    }
-
-    @SuppressWarnings("deprecation")
-    private X509Certificate generateSelfSignedCertificateWithValidSignature(
-            PrivateKey privateKey, PublicKey publicKey, String signatureAlgorithm) throws Exception {
-        final X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
-        certGen.setPublicKey(publicKey);
-        certGen.setSerialNumber(mSpec.getCertificateSerialNumber());
-        certGen.setSubjectDN(mSpec.getCertificateSubject());
-        certGen.setIssuerDN(mSpec.getCertificateSubject());
-        certGen.setNotBefore(mSpec.getCertificateNotBefore());
-        certGen.setNotAfter(mSpec.getCertificateNotAfter());
-        certGen.setSignatureAlgorithm(signatureAlgorithm);
-        return certGen.generate(privateKey);
-    }
-
-    @SuppressWarnings("deprecation")
-    private X509Certificate generateSelfSignedCertificateWithFakeSignature(
-            PublicKey publicKey) throws IOException, CertificateParsingException {
-        V3TBSCertificateGenerator tbsGenerator = new V3TBSCertificateGenerator();
-        ASN1ObjectIdentifier sigAlgOid;
-        AlgorithmIdentifier sigAlgId;
-        byte[] signature;
-        switch (mKeymasterAlgorithm) {
-            case KeymasterDefs.KM_ALGORITHM_EC:
-                sigAlgOid = X9ObjectIdentifiers.ecdsa_with_SHA256;
-                sigAlgId = new AlgorithmIdentifier(sigAlgOid);
-                ASN1EncodableVector v = new ASN1EncodableVector();
-                v.add(new ASN1Integer(BigInteger.valueOf(0)));
-                v.add(new ASN1Integer(BigInteger.valueOf(0)));
-                signature = new DERSequence().getEncoded();
-                break;
-            case KeymasterDefs.KM_ALGORITHM_RSA:
-                sigAlgOid = PKCSObjectIdentifiers.sha256WithRSAEncryption;
-                sigAlgId = new AlgorithmIdentifier(sigAlgOid, DERNull.INSTANCE);
-                signature = new byte[1];
-                break;
-            default:
-                throw new ProviderException("Unsupported key algorithm: " + mKeymasterAlgorithm);
-        }
-
-        try (ASN1InputStream publicKeyInfoIn = new ASN1InputStream(publicKey.getEncoded())) {
-            tbsGenerator.setSubjectPublicKeyInfo(
-                    SubjectPublicKeyInfo.getInstance(publicKeyInfoIn.readObject()));
-        }
-        tbsGenerator.setSerialNumber(new ASN1Integer(mSpec.getCertificateSerialNumber()));
-        X509Principal subject =
-                new X509Principal(mSpec.getCertificateSubject().getEncoded());
-        tbsGenerator.setSubject(subject);
-        tbsGenerator.setIssuer(subject);
-        tbsGenerator.setStartDate(new Time(mSpec.getCertificateNotBefore()));
-        tbsGenerator.setEndDate(new Time(mSpec.getCertificateNotAfter()));
-        tbsGenerator.setSignature(sigAlgId);
-        TBSCertificate tbsCertificate = tbsGenerator.generateTBSCertificate();
-
-        ASN1EncodableVector result = new ASN1EncodableVector();
-        result.add(tbsCertificate);
-        result.add(sigAlgId);
-        result.add(new DERBitString(signature));
-        return new X509CertificateObject(Certificate.getInstance(new DERSequence(result)));
-    }
-
-    private static int getDefaultKeySize(int keymasterAlgorithm) {
-        switch (keymasterAlgorithm) {
-            case KeymasterDefs.KM_ALGORITHM_EC:
-                return EC_DEFAULT_KEY_SIZE;
-            case KeymasterDefs.KM_ALGORITHM_RSA:
-                return RSA_DEFAULT_KEY_SIZE;
-            default:
-                throw new ProviderException("Unsupported algorithm: " + keymasterAlgorithm);
-        }
-    }
-
-    private static void checkValidKeySize(
-            int keymasterAlgorithm,
-            int keySize,
-            boolean isStrongBoxBacked)
-            throws InvalidAlgorithmParameterException {
-        switch (keymasterAlgorithm) {
-            case KeymasterDefs.KM_ALGORITHM_EC:
-                if (isStrongBoxBacked && keySize != 256) {
-                    throw new InvalidAlgorithmParameterException(
-                            "Unsupported StrongBox EC key size: "
-                            + keySize + " bits. Supported: 256");
-                }
-                if (!SUPPORTED_EC_NIST_CURVE_SIZES.contains(keySize)) {
-                    throw new InvalidAlgorithmParameterException("Unsupported EC key size: "
-                            + keySize + " bits. Supported: " + SUPPORTED_EC_NIST_CURVE_SIZES);
-                }
-                break;
-            case KeymasterDefs.KM_ALGORITHM_RSA:
-                if (keySize < RSA_MIN_KEY_SIZE || keySize > RSA_MAX_KEY_SIZE) {
-                    throw new InvalidAlgorithmParameterException("RSA key size must be >= "
-                            + RSA_MIN_KEY_SIZE + " and <= " + RSA_MAX_KEY_SIZE);
-                }
-                break;
-            default:
-                throw new ProviderException("Unsupported algorithm: " + keymasterAlgorithm);
-        }
-    }
-
-    /**
-     * Returns the {@code Signature} algorithm to be used for signing a certificate using the
-     * specified key or {@code null} if the key cannot be used for signing a certificate.
-     */
-    @Nullable
-    private static String getCertificateSignatureAlgorithm(
-            int keymasterAlgorithm,
-            int keySizeBits,
-            KeyGenParameterSpec spec) {
-        // Constraints:
-        // 1. Key must be authorized for signing without user authentication.
-        // 2. Signature digest must be one of key's authorized digests.
-        // 3. For RSA keys, the digest output size must not exceed modulus size minus space overhead
-        //    of RSA PKCS#1 signature padding scheme (about 30 bytes).
-        // 4. For EC keys, the there is no point in using a digest whose output size is longer than
-        //    key/field size because the digest will be truncated to that size.
-
-        if ((spec.getPurposes() & KeyProperties.PURPOSE_SIGN) == 0) {
-            // Key not authorized for signing
-            return null;
-        }
-        if (spec.isUserAuthenticationRequired()) {
-            // Key not authorized for use without user authentication
-            return null;
-        }
-        if (!spec.isDigestsSpecified()) {
-            // Key not authorized for any digests -- can't sign
-            return null;
-        }
-        switch (keymasterAlgorithm) {
-            case KeymasterDefs.KM_ALGORITHM_EC:
-            {
-                Set<Integer> availableKeymasterDigests = getAvailableKeymasterSignatureDigests(
-                        spec.getDigests(),
-                        AndroidKeyStoreBCWorkaroundProvider.getSupportedEcdsaSignatureDigests());
-
-                int bestKeymasterDigest = -1;
-                int bestDigestOutputSizeBits = -1;
-                for (int keymasterDigest : availableKeymasterDigests) {
-                    int outputSizeBits = KeymasterUtils.getDigestOutputSizeBits(keymasterDigest);
-                    if (outputSizeBits == keySizeBits) {
-                        // Perfect match -- use this digest
-                        bestKeymasterDigest = keymasterDigest;
-                        bestDigestOutputSizeBits = outputSizeBits;
-                        break;
-                    }
-                    // Not a perfect match -- check against the best digest so far
-                    if (bestKeymasterDigest == -1) {
-                        // First digest tested -- definitely the best so far
-                        bestKeymasterDigest = keymasterDigest;
-                        bestDigestOutputSizeBits = outputSizeBits;
-                    } else {
-                        // Prefer output size to be as close to key size as possible, with output
-                        // sizes larger than key size preferred to those smaller than key size.
-                        if (bestDigestOutputSizeBits < keySizeBits) {
-                            // Output size of the best digest so far is smaller than key size.
-                            // Anything larger is a win.
-                            if (outputSizeBits > bestDigestOutputSizeBits) {
-                                bestKeymasterDigest = keymasterDigest;
-                                bestDigestOutputSizeBits = outputSizeBits;
-                            }
-                        } else {
-                            // Output size of the best digest so far is larger than key size.
-                            // Anything smaller is a win, as long as it's not smaller than key size.
-                            if ((outputSizeBits < bestDigestOutputSizeBits)
-                                    && (outputSizeBits >= keySizeBits)) {
-                                bestKeymasterDigest = keymasterDigest;
-                                bestDigestOutputSizeBits = outputSizeBits;
-                            }
-                        }
-                    }
-                }
-                if (bestKeymasterDigest == -1) {
-                    return null;
-                }
-                return KeyProperties.Digest.fromKeymasterToSignatureAlgorithmDigest(
-                        bestKeymasterDigest) + "WithECDSA";
-            }
-            case KeymasterDefs.KM_ALGORITHM_RSA:
-            {
-                // Check whether this key is authorized for PKCS#1 signature padding.
-                // We use Bouncy Castle to generate self-signed RSA certificates. Bouncy Castle
-                // only supports RSA certificates signed using PKCS#1 padding scheme. The key needs
-                // to be authorized for PKCS#1 padding or padding NONE which means any padding.
-                boolean pkcs1SignaturePaddingSupported =
-                        com.android.internal.util.ArrayUtils.contains(
-                                KeyProperties.SignaturePadding.allToKeymaster(
-                                        spec.getSignaturePaddings()),
-                                KeymasterDefs.KM_PAD_RSA_PKCS1_1_5_SIGN);
-                if (!pkcs1SignaturePaddingSupported) {
-                    // Key not authorized for PKCS#1 signature padding -- can't sign
-                    return null;
-                }
-
-                Set<Integer> availableKeymasterDigests = getAvailableKeymasterSignatureDigests(
-                        spec.getDigests(),
-                        AndroidKeyStoreBCWorkaroundProvider.getSupportedEcdsaSignatureDigests());
-
-                // The amount of space available for the digest is less than modulus size by about
-                // 30 bytes because padding must be at least 11 bytes long (00 || 01 || PS || 00,
-                // where PS must be at least 8 bytes long), and then there's also the 15--19 bytes
-                // overhead (depending the on chosen digest) for encoding digest OID and digest
-                // value in DER.
-                int maxDigestOutputSizeBits = keySizeBits - 30 * 8;
-                int bestKeymasterDigest = -1;
-                int bestDigestOutputSizeBits = -1;
-                for (int keymasterDigest : availableKeymasterDigests) {
-                    int outputSizeBits = KeymasterUtils.getDigestOutputSizeBits(keymasterDigest);
-                    if (outputSizeBits > maxDigestOutputSizeBits) {
-                        // Digest too long (signature generation will fail) -- skip
-                        continue;
-                    }
-                    if (bestKeymasterDigest == -1) {
-                        // First digest tested -- definitely the best so far
-                        bestKeymasterDigest = keymasterDigest;
-                        bestDigestOutputSizeBits = outputSizeBits;
-                    } else {
-                        // The longer the better
-                        if (outputSizeBits > bestDigestOutputSizeBits) {
-                            bestKeymasterDigest = keymasterDigest;
-                            bestDigestOutputSizeBits = outputSizeBits;
-                        }
-                    }
-                }
-                if (bestKeymasterDigest == -1) {
-                    return null;
-                }
-                return KeyProperties.Digest.fromKeymasterToSignatureAlgorithmDigest(
-                        bestKeymasterDigest) + "WithRSA";
-            }
-            default:
-                throw new ProviderException("Unsupported algorithm: " + keymasterAlgorithm);
-        }
-    }
-
-    private static Set<Integer> getAvailableKeymasterSignatureDigests(
-            @KeyProperties.DigestEnum String[] authorizedKeyDigests,
-            @KeyProperties.DigestEnum String[] supportedSignatureDigests) {
-        Set<Integer> authorizedKeymasterKeyDigests = new HashSet<Integer>();
-        for (int keymasterDigest : KeyProperties.Digest.allToKeymaster(authorizedKeyDigests)) {
-            authorizedKeymasterKeyDigests.add(keymasterDigest);
-        }
-        Set<Integer> supportedKeymasterSignatureDigests = new HashSet<Integer>();
-        for (int keymasterDigest
-                : KeyProperties.Digest.allToKeymaster(supportedSignatureDigests)) {
-            supportedKeymasterSignatureDigests.add(keymasterDigest);
-        }
-        Set<Integer> result = new HashSet<Integer>(supportedKeymasterSignatureDigests);
-        result.retainAll(authorizedKeymasterKeyDigests);
-        return result;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreLoadStoreParameter.java b/keystore/java/android/security/keystore/AndroidKeyStoreLoadStoreParameter.java
deleted file mode 100644
index 45d579e..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreLoadStoreParameter.java
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import java.security.KeyStore;
-import java.security.KeyStore.ProtectionParameter;
-
-class AndroidKeyStoreLoadStoreParameter implements KeyStore.LoadStoreParameter {
-
-    private final int mUid;
-
-    AndroidKeyStoreLoadStoreParameter(int uid) {
-        mUid = uid;
-    }
-
-    @Override
-    public ProtectionParameter getProtectionParameter() {
-        return null;
-    }
-
-    int getUid() {
-        return mUid;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStorePrivateKey.java b/keystore/java/android/security/keystore/AndroidKeyStorePrivateKey.java
deleted file mode 100644
index 06e4c88..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStorePrivateKey.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import java.security.PrivateKey;
-
-/**
- * {@link PrivateKey} backed by Android Keystore.
- *
- * @hide
- */
-public class AndroidKeyStorePrivateKey extends AndroidKeyStoreKey implements PrivateKey {
-
-    public AndroidKeyStorePrivateKey(String alias, int uid, String algorithm) {
-        super(alias, uid, algorithm);
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreProvider.java b/keystore/java/android/security/keystore/AndroidKeyStoreProvider.java
index 0871517..62fe54f 100644
--- a/keystore/java/android/security/keystore/AndroidKeyStoreProvider.java
+++ b/keystore/java/android/security/keystore/AndroidKeyStoreProvider.java
@@ -20,30 +20,13 @@
 import android.annotation.SystemApi;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.security.KeyStore;
-import android.security.keymaster.ExportResult;
-import android.security.keymaster.KeyCharacteristics;
-import android.security.keymaster.KeymasterDefs;
 
 import java.io.IOException;
-import java.security.KeyFactory;
-import java.security.KeyPair;
 import java.security.KeyStoreException;
 import java.security.NoSuchAlgorithmException;
 import java.security.NoSuchProviderException;
 import java.security.Provider;
-import java.security.ProviderException;
-import java.security.PublicKey;
-import java.security.Security;
-import java.security.Signature;
-import java.security.UnrecoverableKeyException;
 import java.security.cert.CertificateException;
-import java.security.interfaces.ECKey;
-import java.security.interfaces.ECPublicKey;
-import java.security.interfaces.RSAKey;
-import java.security.interfaces.RSAPublicKey;
-import java.security.spec.InvalidKeySpecException;
-import java.security.spec.X509EncodedKeySpec;
-import java.util.List;
 
 import javax.crypto.Cipher;
 import javax.crypto.Mac;
@@ -57,117 +40,10 @@
 public class AndroidKeyStoreProvider extends Provider {
     private static final String PROVIDER_NAME = "AndroidKeyStore";
 
-    // IMPLEMENTATION NOTE: Class names are hard-coded in this provider to avoid loading these
-    // classes when this provider is instantiated and installed early on during each app's
-    // initialization process.
-    //
-    // Crypto operations operating on the AndroidKeyStore keys must not be offered by this provider.
-    // Instead, they need to be offered by AndroidKeyStoreBCWorkaroundProvider. See its Javadoc
-    // for details.
-
-    private static final String PACKAGE_NAME = "android.security.keystore";
-
-    private static final String DESEDE_SYSTEM_PROPERTY =
-            "ro.hardware.keystore_desede";
-
     /** @hide */
-    public AndroidKeyStoreProvider() {
-        this(PROVIDER_NAME);
-    }
-
-    /** @hide **/
-    public AndroidKeyStoreProvider(String providerName) {
-        super(providerName, 1.0, "Android KeyStore security provider");
-
-        boolean supports3DES = "true".equals(android.os.SystemProperties.get(DESEDE_SYSTEM_PROPERTY));
-
-        // java.security.KeyStore
-        put("KeyStore." + providerName, PACKAGE_NAME + ".AndroidKeyStoreSpi");
-
-        // java.security.KeyPairGenerator
-        put("KeyPairGenerator.EC", PACKAGE_NAME + ".AndroidKeyStoreKeyPairGeneratorSpi$EC");
-        put("KeyPairGenerator.RSA", PACKAGE_NAME +  ".AndroidKeyStoreKeyPairGeneratorSpi$RSA");
-
-        // java.security.KeyFactory
-        putKeyFactoryImpl("EC");
-        putKeyFactoryImpl("RSA");
-
-        // javax.crypto.KeyGenerator
-        put("KeyGenerator.AES", PACKAGE_NAME + ".AndroidKeyStoreKeyGeneratorSpi$AES");
-        put("KeyGenerator.HmacSHA1", PACKAGE_NAME + ".AndroidKeyStoreKeyGeneratorSpi$HmacSHA1");
-        put("KeyGenerator.HmacSHA224", PACKAGE_NAME + ".AndroidKeyStoreKeyGeneratorSpi$HmacSHA224");
-        put("KeyGenerator.HmacSHA256", PACKAGE_NAME + ".AndroidKeyStoreKeyGeneratorSpi$HmacSHA256");
-        put("KeyGenerator.HmacSHA384", PACKAGE_NAME + ".AndroidKeyStoreKeyGeneratorSpi$HmacSHA384");
-        put("KeyGenerator.HmacSHA512", PACKAGE_NAME + ".AndroidKeyStoreKeyGeneratorSpi$HmacSHA512");
-
-        if (supports3DES) {
-            put("KeyGenerator.DESede", PACKAGE_NAME + ".AndroidKeyStoreKeyGeneratorSpi$DESede");
-        }
-
-        // java.security.SecretKeyFactory
-        putSecretKeyFactoryImpl("AES");
-        if (supports3DES) {
-            putSecretKeyFactoryImpl("DESede");
-        }
-        putSecretKeyFactoryImpl("HmacSHA1");
-        putSecretKeyFactoryImpl("HmacSHA224");
-        putSecretKeyFactoryImpl("HmacSHA256");
-        putSecretKeyFactoryImpl("HmacSHA384");
-        putSecretKeyFactoryImpl("HmacSHA512");
-    }
-
-    /**
-     * This function indicates whether or not Keystore 2.0 is enabled. Some parts of the
-     * Keystore SPI must behave subtly differently when Keystore 2.0 is enabled. However,
-     * the platform property that indicates that Keystore 2.0 is enabled is not readable
-     * by applications. So we set this value when {@code install()} is called because it
-     * is called by zygote, which can access Keystore2Properties.
-     *
-     * This function can be removed once the transition to Keystore 2.0 is complete.
-     * b/171305684
-     *
-     * @return true if Keystore 2.0 is enabled.
-     * @hide
-     */
-    public static boolean isKeystore2Enabled() {
-        return android.security.keystore2.AndroidKeyStoreProvider.isInstalled();
-    }
-
-    /**
-     * Installs a new instance of this provider (and the
-     * {@link AndroidKeyStoreBCWorkaroundProvider}).
-     * @hide
-     */
-    public static void install() {
-        Provider[] providers = Security.getProviders();
-        int bcProviderIndex = -1;
-        for (int i = 0; i < providers.length; i++) {
-            Provider provider = providers[i];
-            if ("BC".equals(provider.getName())) {
-                bcProviderIndex = i;
-                break;
-            }
-        }
-
-        Security.addProvider(new AndroidKeyStoreProvider());
-        Provider workaroundProvider = new AndroidKeyStoreBCWorkaroundProvider();
-        if (bcProviderIndex != -1) {
-            // Bouncy Castle provider found -- install the workaround provider above it.
-            // insertProviderAt uses 1-based positions.
-            Security.insertProviderAt(workaroundProvider, bcProviderIndex + 1);
-        } else {
-            // Bouncy Castle provider not found -- install the workaround provider at lowest
-            // priority.
-            Security.addProvider(workaroundProvider);
-        }
-    }
-
-    private void putSecretKeyFactoryImpl(String algorithm) {
-        put("SecretKeyFactory." + algorithm, PACKAGE_NAME + ".AndroidKeyStoreSecretKeyFactorySpi");
-    }
-
-    private void putKeyFactoryImpl(String algorithm) {
-        put("KeyFactory." + algorithm, PACKAGE_NAME + ".AndroidKeyStoreKeyFactorySpi");
+    public AndroidKeyStoreProvider(@NonNull String name) {
+        super(name, 1.0, "Android KeyStore security provider");
+        throw new IllegalStateException("Should not be instantiated.");
     }
 
     /**
@@ -186,232 +62,8 @@
      */
     @UnsupportedAppUsage
     public static long getKeyStoreOperationHandle(Object cryptoPrimitive) {
-        if (cryptoPrimitive == null) {
-            throw new NullPointerException();
-        }
-        Object spi;
-        if (cryptoPrimitive instanceof Signature) {
-            spi = ((Signature) cryptoPrimitive).getCurrentSpi();
-        } else if (cryptoPrimitive instanceof Mac) {
-            spi = ((Mac) cryptoPrimitive).getCurrentSpi();
-        } else if (cryptoPrimitive instanceof Cipher) {
-            spi = ((Cipher) cryptoPrimitive).getCurrentSpi();
-        } else {
-            throw new IllegalArgumentException("Unsupported crypto primitive: " + cryptoPrimitive
-                    + ". Supported: Signature, Mac, Cipher");
-        }
-        if (spi == null) {
-            throw new IllegalStateException("Crypto primitive not initialized");
-        } else if (!(spi instanceof KeyStoreCryptoOperation)) {
-            throw new IllegalArgumentException(
-                    "Crypto primitive not backed by AndroidKeyStore provider: " + cryptoPrimitive
-                    + ", spi: " + spi);
-        }
-        return ((KeyStoreCryptoOperation) spi).getOperationHandle();
-    }
-
-    /** @hide **/
-    @NonNull
-    public static AndroidKeyStorePublicKey getAndroidKeyStorePublicKey(
-            @NonNull String alias,
-            int uid,
-            @NonNull @KeyProperties.KeyAlgorithmEnum String keyAlgorithm,
-            @NonNull byte[] x509EncodedForm) {
-        PublicKey publicKey;
-        try {
-            KeyFactory keyFactory = KeyFactory.getInstance(keyAlgorithm);
-            publicKey = keyFactory.generatePublic(new X509EncodedKeySpec(x509EncodedForm));
-        } catch (NoSuchAlgorithmException e) {
-            throw new ProviderException(
-                    "Failed to obtain " + keyAlgorithm + " KeyFactory", e);
-        } catch (InvalidKeySpecException e) {
-            throw new ProviderException("Invalid X.509 encoding of public key", e);
-        }
-        if (KeyProperties.KEY_ALGORITHM_EC.equalsIgnoreCase(keyAlgorithm)) {
-            return new AndroidKeyStoreECPublicKey(alias, uid, (ECPublicKey) publicKey);
-        } else if (KeyProperties.KEY_ALGORITHM_RSA.equalsIgnoreCase(keyAlgorithm)) {
-            return new AndroidKeyStoreRSAPublicKey(alias, uid, (RSAPublicKey) publicKey);
-        } else {
-            throw new ProviderException("Unsupported Android Keystore public key algorithm: "
-                    + keyAlgorithm);
-        }
-    }
-
-    @NonNull
-    private static AndroidKeyStorePrivateKey getAndroidKeyStorePrivateKey(
-            @NonNull AndroidKeyStorePublicKey publicKey) {
-        String keyAlgorithm = publicKey.getAlgorithm();
-        if (KeyProperties.KEY_ALGORITHM_EC.equalsIgnoreCase(keyAlgorithm)) {
-            return new AndroidKeyStoreECPrivateKey(
-                    publicKey.getAlias(), publicKey.getUid(), ((ECKey) publicKey).getParams());
-        } else if (KeyProperties.KEY_ALGORITHM_RSA.equalsIgnoreCase(keyAlgorithm)) {
-            return new AndroidKeyStoreRSAPrivateKey(
-                    publicKey.getAlias(), publicKey.getUid(), ((RSAKey) publicKey).getModulus());
-        } else {
-            throw new ProviderException("Unsupported Android Keystore public key algorithm: "
-                    + keyAlgorithm);
-        }
-    }
-
-    @NonNull
-    private static KeyCharacteristics getKeyCharacteristics(@NonNull KeyStore keyStore,
-            @NonNull String alias, int uid)
-            throws UnrecoverableKeyException, KeyPermanentlyInvalidatedException {
-        KeyCharacteristics keyCharacteristics = new KeyCharacteristics();
-        int errorCode = keyStore.getKeyCharacteristics(
-                alias, null, null, uid, keyCharacteristics);
-        if (errorCode == KeyStore.KEY_PERMANENTLY_INVALIDATED) {
-            throw (KeyPermanentlyInvalidatedException)
-                new KeyPermanentlyInvalidatedException(
-                            "User changed or deleted their auth credentials",
-                            KeyStore.getKeyStoreException(errorCode));
-        }
-        if (errorCode != KeyStore.NO_ERROR) {
-            throw (UnrecoverableKeyException)
-                    new UnrecoverableKeyException("Failed to obtain information about key")
-                            .initCause(KeyStore.getKeyStoreException(errorCode));
-        }
-        return keyCharacteristics;
-    }
-
-    @NonNull
-    private static AndroidKeyStorePublicKey loadAndroidKeyStorePublicKeyFromKeystore(
-            @NonNull KeyStore keyStore, @NonNull String privateKeyAlias, int uid,
-            KeyCharacteristics keyCharacteristics)
-            throws UnrecoverableKeyException {
-        ExportResult exportResult = keyStore.exportKey(
-                privateKeyAlias, KeymasterDefs.KM_KEY_FORMAT_X509, null, null, uid);
-        if (exportResult.resultCode != KeyStore.NO_ERROR) {
-            throw (UnrecoverableKeyException)
-                    new UnrecoverableKeyException("Failed to obtain X.509 form of public key")
-                    .initCause(KeyStore.getKeyStoreException(exportResult.resultCode));
-        }
-        final byte[] x509EncodedPublicKey = exportResult.exportData;
-
-        Integer keymasterAlgorithm = keyCharacteristics.getEnum(KeymasterDefs.KM_TAG_ALGORITHM);
-        if (keymasterAlgorithm == null) {
-            throw new UnrecoverableKeyException("Key algorithm unknown");
-        }
-
-        String jcaKeyAlgorithm;
-        try {
-            jcaKeyAlgorithm = KeyProperties.KeyAlgorithm.fromKeymasterAsymmetricKeyAlgorithm(
-                    keymasterAlgorithm);
-        } catch (IllegalArgumentException e) {
-            throw (UnrecoverableKeyException)
-                    new UnrecoverableKeyException("Failed to load private key")
-                    .initCause(e);
-        }
-
-        return AndroidKeyStoreProvider.getAndroidKeyStorePublicKey(
-                privateKeyAlias, uid, jcaKeyAlgorithm, x509EncodedPublicKey);
-    }
-
-    /** @hide **/
-    @NonNull
-    public static AndroidKeyStorePublicKey loadAndroidKeyStorePublicKeyFromKeystore(
-            @NonNull KeyStore keyStore, @NonNull String privateKeyAlias, int uid)
-            throws UnrecoverableKeyException, KeyPermanentlyInvalidatedException {
-        return loadAndroidKeyStorePublicKeyFromKeystore(keyStore, privateKeyAlias, uid,
-                getKeyCharacteristics(keyStore, privateKeyAlias, uid));
-    }
-
-    @NonNull
-    private static KeyPair loadAndroidKeyStoreKeyPairFromKeystore(
-            @NonNull KeyStore keyStore, @NonNull String privateKeyAlias, int uid,
-            @NonNull KeyCharacteristics keyCharacteristics)
-            throws UnrecoverableKeyException {
-        AndroidKeyStorePublicKey publicKey =
-                loadAndroidKeyStorePublicKeyFromKeystore(keyStore, privateKeyAlias, uid,
-                        keyCharacteristics);
-        AndroidKeyStorePrivateKey privateKey =
-                AndroidKeyStoreProvider.getAndroidKeyStorePrivateKey(publicKey);
-        return new KeyPair(publicKey, privateKey);
-    }
-
-    /** @hide **/
-    @NonNull
-    public static KeyPair loadAndroidKeyStoreKeyPairFromKeystore(
-            @NonNull KeyStore keyStore, @NonNull String privateKeyAlias, int uid)
-            throws UnrecoverableKeyException, KeyPermanentlyInvalidatedException {
-        return loadAndroidKeyStoreKeyPairFromKeystore(keyStore, privateKeyAlias, uid,
-                getKeyCharacteristics(keyStore, privateKeyAlias, uid));
-    }
-
-    @NonNull
-    private static AndroidKeyStorePrivateKey loadAndroidKeyStorePrivateKeyFromKeystore(
-            @NonNull KeyStore keyStore, @NonNull String privateKeyAlias, int uid,
-            @NonNull KeyCharacteristics keyCharacteristics)
-            throws UnrecoverableKeyException {
-        KeyPair keyPair = loadAndroidKeyStoreKeyPairFromKeystore(keyStore, privateKeyAlias, uid,
-                keyCharacteristics);
-        return (AndroidKeyStorePrivateKey) keyPair.getPrivate();
-    }
-
-    /** @hide **/
-    @NonNull
-    public static AndroidKeyStorePrivateKey loadAndroidKeyStorePrivateKeyFromKeystore(
-            @NonNull KeyStore keyStore, @NonNull String privateKeyAlias, int uid)
-            throws UnrecoverableKeyException, KeyPermanentlyInvalidatedException {
-        return loadAndroidKeyStorePrivateKeyFromKeystore(keyStore, privateKeyAlias, uid,
-                getKeyCharacteristics(keyStore, privateKeyAlias, uid));
-    }
-
-    @NonNull
-    private static AndroidKeyStoreSecretKey loadAndroidKeyStoreSecretKeyFromKeystore(
-            @NonNull String secretKeyAlias, int uid, @NonNull KeyCharacteristics keyCharacteristics)
-            throws UnrecoverableKeyException {
-        Integer keymasterAlgorithm = keyCharacteristics.getEnum(KeymasterDefs.KM_TAG_ALGORITHM);
-        if (keymasterAlgorithm == null) {
-            throw new UnrecoverableKeyException("Key algorithm unknown");
-        }
-
-        List<Integer> keymasterDigests = keyCharacteristics.getEnums(KeymasterDefs.KM_TAG_DIGEST);
-        int keymasterDigest;
-        if (keymasterDigests.isEmpty()) {
-            keymasterDigest = -1;
-        } else {
-            // More than one digest can be permitted for this key. Use the first one to form the
-            // JCA key algorithm name.
-            keymasterDigest = keymasterDigests.get(0);
-        }
-
-        @KeyProperties.KeyAlgorithmEnum String keyAlgorithmString;
-        try {
-            keyAlgorithmString = KeyProperties.KeyAlgorithm.fromKeymasterSecretKeyAlgorithm(
-                    keymasterAlgorithm, keymasterDigest);
-        } catch (IllegalArgumentException e) {
-            throw (UnrecoverableKeyException)
-                    new UnrecoverableKeyException("Unsupported secret key type").initCause(e);
-        }
-
-        return new AndroidKeyStoreSecretKey(secretKeyAlias, uid, keyAlgorithmString);
-    }
-
-    /** @hide **/
-    @NonNull
-    public static AndroidKeyStoreKey loadAndroidKeyStoreKeyFromKeystore(
-            @NonNull KeyStore keyStore, @NonNull String userKeyAlias, int uid)
-            throws UnrecoverableKeyException, KeyPermanentlyInvalidatedException  {
-        KeyCharacteristics keyCharacteristics = getKeyCharacteristics(keyStore, userKeyAlias, uid);
-
-        Integer keymasterAlgorithm = keyCharacteristics.getEnum(KeymasterDefs.KM_TAG_ALGORITHM);
-        if (keymasterAlgorithm == null) {
-            throw new UnrecoverableKeyException("Key algorithm unknown");
-        }
-
-        if (keymasterAlgorithm == KeymasterDefs.KM_ALGORITHM_HMAC ||
-                keymasterAlgorithm == KeymasterDefs.KM_ALGORITHM_AES ||
-                keymasterAlgorithm == KeymasterDefs.KM_ALGORITHM_3DES) {
-            return loadAndroidKeyStoreSecretKeyFromKeystore(userKeyAlias, uid,
-                    keyCharacteristics);
-        } else if (keymasterAlgorithm == KeymasterDefs.KM_ALGORITHM_RSA ||
-                keymasterAlgorithm == KeymasterDefs.KM_ALGORITHM_EC) {
-            return loadAndroidKeyStorePrivateKeyFromKeystore(keyStore, userKeyAlias, uid,
-                    keyCharacteristics);
-        } else {
-            throw new UnrecoverableKeyException("Key algorithm unknown");
-        }
+        return android.security.keystore2.AndroidKeyStoreProvider
+                .getKeyStoreOperationHandle(cryptoPrimitive);
     }
 
     /**
@@ -434,13 +86,9 @@
     @NonNull
     public static java.security.KeyStore getKeyStoreForUid(int uid)
             throws KeyStoreException, NoSuchProviderException {
-        final java.security.KeyStore.LoadStoreParameter loadParameter;
-        if (android.security.keystore2.AndroidKeyStoreProvider.isInstalled()) {
-            loadParameter = new android.security.keystore2.AndroidKeyStoreLoadStoreParameter(
-                    KeyProperties.legacyUidToNamespace(uid));
-        } else {
-            loadParameter = new AndroidKeyStoreLoadStoreParameter(uid);
-        }
+        final java.security.KeyStore.LoadStoreParameter loadParameter =
+                new android.security.keystore2.AndroidKeyStoreLoadStoreParameter(
+                        KeyProperties.legacyUidToNamespace(uid));
         java.security.KeyStore result = java.security.KeyStore.getInstance(PROVIDER_NAME);
         try {
             result.load(loadParameter);
diff --git a/keystore/java/android/security/keystore/AndroidKeyStorePublicKey.java b/keystore/java/android/security/keystore/AndroidKeyStorePublicKey.java
deleted file mode 100644
index 4194780..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStorePublicKey.java
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import java.security.PublicKey;
-import java.util.Arrays;
-
-/**
- * {@link PublicKey} backed by Android Keystore.
- *
- * @hide
- */
-public class AndroidKeyStorePublicKey extends AndroidKeyStoreKey implements PublicKey {
-
-    private final byte[] mEncoded;
-
-    public AndroidKeyStorePublicKey(String alias, int uid, String algorithm, byte[] x509EncodedForm) {
-        super(alias, uid, algorithm);
-        mEncoded = ArrayUtils.cloneIfNotEmpty(x509EncodedForm);
-    }
-
-    @Override
-    public String getFormat() {
-        return "X.509";
-    }
-
-    @Override
-    public byte[] getEncoded() {
-        return ArrayUtils.cloneIfNotEmpty(mEncoded);
-    }
-
-    @Override
-    public int hashCode() {
-        final int prime = 31;
-        int result = super.hashCode();
-        result = prime * result + Arrays.hashCode(mEncoded);
-        return result;
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (this == obj) {
-            return true;
-        }
-        if (!super.equals(obj)) {
-            return false;
-        }
-        if (getClass() != obj.getClass()) {
-            return false;
-        }
-        AndroidKeyStorePublicKey other = (AndroidKeyStorePublicKey) obj;
-        if (!Arrays.equals(mEncoded, other.mEncoded)) {
-            return false;
-        }
-        return true;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreRSACipherSpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreRSACipherSpi.java
deleted file mode 100644
index 2ae68fa..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreRSACipherSpi.java
+++ /dev/null
@@ -1,515 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.security.KeyStore;
-import android.security.keymaster.KeyCharacteristics;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-
-import java.security.AlgorithmParameters;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.Key;
-import java.security.NoSuchAlgorithmException;
-import java.security.PrivateKey;
-import java.security.ProviderException;
-import java.security.spec.AlgorithmParameterSpec;
-import java.security.spec.InvalidParameterSpecException;
-import java.security.spec.MGF1ParameterSpec;
-
-import javax.crypto.Cipher;
-import javax.crypto.CipherSpi;
-import javax.crypto.spec.OAEPParameterSpec;
-import javax.crypto.spec.PSource;
-
-/**
- * Base class for {@link CipherSpi} providing Android KeyStore backed RSA encryption/decryption.
- *
- * @hide
- */
-abstract class AndroidKeyStoreRSACipherSpi extends AndroidKeyStoreCipherSpiBase {
-
-    /**
-     * Raw RSA cipher without any padding.
-     */
-    public static final class NoPadding extends AndroidKeyStoreRSACipherSpi {
-        public NoPadding() {
-            super(KeymasterDefs.KM_PAD_NONE);
-        }
-
-        @Override
-        protected boolean adjustConfigForEncryptingWithPrivateKey() {
-            // RSA encryption with no padding using private key is a way to implement raw RSA
-            // signatures which JCA does not expose via Signature. We thus have to support this.
-            setKeymasterPurposeOverride(KeymasterDefs.KM_PURPOSE_SIGN);
-            return true;
-        }
-
-        @Override
-        protected void initAlgorithmSpecificParameters() throws InvalidKeyException {}
-
-        @Override
-        protected void initAlgorithmSpecificParameters(@Nullable AlgorithmParameterSpec params)
-                throws InvalidAlgorithmParameterException {
-            if (params != null) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unexpected parameters: " + params + ". No parameters supported");
-            }
-        }
-
-        @Override
-        protected void initAlgorithmSpecificParameters(@Nullable AlgorithmParameters params)
-                throws InvalidAlgorithmParameterException {
-
-            if (params != null) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unexpected parameters: " + params + ". No parameters supported");
-            }
-        }
-
-        @Override
-        protected AlgorithmParameters engineGetParameters() {
-            return null;
-        }
-
-        @Override
-        protected final int getAdditionalEntropyAmountForBegin() {
-            return 0;
-        }
-
-        @Override
-        protected final int getAdditionalEntropyAmountForFinish() {
-            return 0;
-        }
-    }
-
-    /**
-     * RSA cipher with PKCS#1 v1.5 encryption padding.
-     */
-    public static final class PKCS1Padding extends AndroidKeyStoreRSACipherSpi {
-        public PKCS1Padding() {
-            super(KeymasterDefs.KM_PAD_RSA_PKCS1_1_5_ENCRYPT);
-        }
-
-        @Override
-        protected boolean adjustConfigForEncryptingWithPrivateKey() {
-            // RSA encryption with PCKS#1 padding using private key is a way to implement RSA
-            // signatures with PKCS#1 padding. We have to support this for legacy reasons.
-            setKeymasterPurposeOverride(KeymasterDefs.KM_PURPOSE_SIGN);
-            setKeymasterPaddingOverride(KeymasterDefs.KM_PAD_RSA_PKCS1_1_5_SIGN);
-            return true;
-        }
-
-        @Override
-        protected void initAlgorithmSpecificParameters() throws InvalidKeyException {}
-
-        @Override
-        protected void initAlgorithmSpecificParameters(@Nullable AlgorithmParameterSpec params)
-                throws InvalidAlgorithmParameterException {
-            if (params != null) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unexpected parameters: " + params + ". No parameters supported");
-            }
-        }
-
-        @Override
-        protected void initAlgorithmSpecificParameters(@Nullable AlgorithmParameters params)
-                throws InvalidAlgorithmParameterException {
-
-            if (params != null) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unexpected parameters: " + params + ". No parameters supported");
-            }
-        }
-
-        @Override
-        protected AlgorithmParameters engineGetParameters() {
-            return null;
-        }
-
-        @Override
-        protected final int getAdditionalEntropyAmountForBegin() {
-            return 0;
-        }
-
-        @Override
-        protected final int getAdditionalEntropyAmountForFinish() {
-            return (isEncrypting()) ? getModulusSizeBytes() : 0;
-        }
-    }
-
-    /**
-     * RSA cipher with OAEP encryption padding. Only SHA-1 based MGF1 is supported as MGF.
-     */
-    abstract static class OAEPWithMGF1Padding extends AndroidKeyStoreRSACipherSpi {
-
-        private static final String MGF_ALGORITGM_MGF1 = "MGF1";
-
-        private int mKeymasterDigest = -1;
-        private int mDigestOutputSizeBytes;
-
-        OAEPWithMGF1Padding(int keymasterDigest) {
-            super(KeymasterDefs.KM_PAD_RSA_OAEP);
-            mKeymasterDigest = keymasterDigest;
-            mDigestOutputSizeBytes =
-                    (KeymasterUtils.getDigestOutputSizeBits(keymasterDigest) + 7) / 8;
-        }
-
-        @Override
-        protected final void initAlgorithmSpecificParameters() throws InvalidKeyException {}
-
-        @Override
-        protected final void initAlgorithmSpecificParameters(
-                @Nullable AlgorithmParameterSpec params) throws InvalidAlgorithmParameterException {
-            if (params == null) {
-                return;
-            }
-
-            if (!(params instanceof OAEPParameterSpec)) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unsupported parameter spec: " + params
-                        + ". Only OAEPParameterSpec supported");
-            }
-            OAEPParameterSpec spec = (OAEPParameterSpec) params;
-            if (!MGF_ALGORITGM_MGF1.equalsIgnoreCase(spec.getMGFAlgorithm())) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unsupported MGF: " + spec.getMGFAlgorithm()
-                        + ". Only " + MGF_ALGORITGM_MGF1 + " supported");
-            }
-            String jcaDigest = spec.getDigestAlgorithm();
-            int keymasterDigest;
-            try {
-                keymasterDigest = KeyProperties.Digest.toKeymaster(jcaDigest);
-            } catch (IllegalArgumentException e) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unsupported digest: " + jcaDigest, e);
-            }
-            switch (keymasterDigest) {
-                case KeymasterDefs.KM_DIGEST_SHA1:
-                case KeymasterDefs.KM_DIGEST_SHA_2_224:
-                case KeymasterDefs.KM_DIGEST_SHA_2_256:
-                case KeymasterDefs.KM_DIGEST_SHA_2_384:
-                case KeymasterDefs.KM_DIGEST_SHA_2_512:
-                    // Permitted.
-                    break;
-                default:
-                    throw new InvalidAlgorithmParameterException(
-                            "Unsupported digest: " + jcaDigest);
-            }
-            AlgorithmParameterSpec mgfParams = spec.getMGFParameters();
-            if (mgfParams == null) {
-                throw new InvalidAlgorithmParameterException("MGF parameters must be provided");
-            }
-            // Check whether MGF parameters match the OAEPParameterSpec
-            if (!(mgfParams instanceof MGF1ParameterSpec)) {
-                throw new InvalidAlgorithmParameterException("Unsupported MGF parameters"
-                        + ": " + mgfParams + ". Only MGF1ParameterSpec supported");
-            }
-            MGF1ParameterSpec mgfSpec = (MGF1ParameterSpec) mgfParams;
-            String mgf1JcaDigest = mgfSpec.getDigestAlgorithm();
-            if (!KeyProperties.DIGEST_SHA1.equalsIgnoreCase(mgf1JcaDigest)) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unsupported MGF1 digest: " + mgf1JcaDigest
-                        + ". Only " + KeyProperties.DIGEST_SHA1 + " supported");
-            }
-            PSource pSource = spec.getPSource();
-            if (!(pSource instanceof PSource.PSpecified)) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unsupported source of encoding input P: " + pSource
-                        + ". Only pSpecifiedEmpty (PSource.PSpecified.DEFAULT) supported");
-            }
-            PSource.PSpecified pSourceSpecified = (PSource.PSpecified) pSource;
-            byte[] pSourceValue = pSourceSpecified.getValue();
-            if ((pSourceValue != null) && (pSourceValue.length > 0)) {
-                throw new InvalidAlgorithmParameterException(
-                        "Unsupported source of encoding input P: " + pSource
-                        + ". Only pSpecifiedEmpty (PSource.PSpecified.DEFAULT) supported");
-            }
-            mKeymasterDigest = keymasterDigest;
-            mDigestOutputSizeBytes =
-                    (KeymasterUtils.getDigestOutputSizeBits(keymasterDigest) + 7) / 8;
-        }
-
-        @Override
-        protected final void initAlgorithmSpecificParameters(@Nullable AlgorithmParameters params)
-                throws InvalidAlgorithmParameterException {
-            if (params == null) {
-                return;
-            }
-
-            OAEPParameterSpec spec;
-            try {
-                spec = params.getParameterSpec(OAEPParameterSpec.class);
-            } catch (InvalidParameterSpecException e) {
-                throw new InvalidAlgorithmParameterException("OAEP parameters required"
-                        + ", but not found in parameters: " + params, e);
-            }
-            if (spec == null) {
-                throw new InvalidAlgorithmParameterException("OAEP parameters required"
-                        + ", but not provided in parameters: " + params);
-            }
-            initAlgorithmSpecificParameters(spec);
-        }
-
-        @Override
-        protected final AlgorithmParameters engineGetParameters() {
-            OAEPParameterSpec spec =
-                    new OAEPParameterSpec(
-                            KeyProperties.Digest.fromKeymaster(mKeymasterDigest),
-                            MGF_ALGORITGM_MGF1,
-                            MGF1ParameterSpec.SHA1,
-                            PSource.PSpecified.DEFAULT);
-            try {
-                AlgorithmParameters params = AlgorithmParameters.getInstance("OAEP");
-                params.init(spec);
-                return params;
-            } catch (NoSuchAlgorithmException e) {
-                throw new ProviderException(
-                        "Failed to obtain OAEP AlgorithmParameters", e);
-            } catch (InvalidParameterSpecException e) {
-                throw new ProviderException(
-                        "Failed to initialize OAEP AlgorithmParameters with an IV",
-                        e);
-            }
-        }
-
-        @Override
-        protected final void addAlgorithmSpecificParametersToBegin(
-                KeymasterArguments keymasterArgs) {
-            super.addAlgorithmSpecificParametersToBegin(keymasterArgs);
-            keymasterArgs.addEnum(KeymasterDefs.KM_TAG_DIGEST, mKeymasterDigest);
-        }
-
-        @Override
-        protected final void loadAlgorithmSpecificParametersFromBeginResult(
-                @NonNull KeymasterArguments keymasterArgs) {
-            super.loadAlgorithmSpecificParametersFromBeginResult(keymasterArgs);
-        }
-
-        @Override
-        protected final int getAdditionalEntropyAmountForBegin() {
-            return 0;
-        }
-
-        @Override
-        protected final int getAdditionalEntropyAmountForFinish() {
-            return (isEncrypting()) ? mDigestOutputSizeBytes : 0;
-        }
-    }
-
-    public static class OAEPWithSHA1AndMGF1Padding extends OAEPWithMGF1Padding {
-        public OAEPWithSHA1AndMGF1Padding() {
-            super(KeymasterDefs.KM_DIGEST_SHA1);
-        }
-    }
-
-    public static class OAEPWithSHA224AndMGF1Padding extends OAEPWithMGF1Padding {
-        public OAEPWithSHA224AndMGF1Padding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_224);
-        }
-    }
-
-    public static class OAEPWithSHA256AndMGF1Padding extends OAEPWithMGF1Padding {
-        public OAEPWithSHA256AndMGF1Padding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_256);
-        }
-    }
-
-    public static class OAEPWithSHA384AndMGF1Padding extends OAEPWithMGF1Padding {
-        public OAEPWithSHA384AndMGF1Padding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_384);
-        }
-    }
-
-    public static class OAEPWithSHA512AndMGF1Padding extends OAEPWithMGF1Padding {
-        public OAEPWithSHA512AndMGF1Padding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_512);
-        }
-    }
-
-    private final int mKeymasterPadding;
-    private int mKeymasterPaddingOverride;
-
-    private int mModulusSizeBytes = -1;
-
-    AndroidKeyStoreRSACipherSpi(int keymasterPadding) {
-        mKeymasterPadding = keymasterPadding;
-    }
-
-    @Override
-    protected final void initKey(int opmode, Key key) throws InvalidKeyException {
-        if (key == null) {
-            throw new InvalidKeyException("Unsupported key: null");
-        }
-        if (!KeyProperties.KEY_ALGORITHM_RSA.equalsIgnoreCase(key.getAlgorithm())) {
-            throw new InvalidKeyException("Unsupported key algorithm: " + key.getAlgorithm()
-                    + ". Only " + KeyProperties.KEY_ALGORITHM_RSA + " supported");
-        }
-        AndroidKeyStoreKey keystoreKey;
-        if (key instanceof AndroidKeyStorePrivateKey) {
-            keystoreKey = (AndroidKeyStoreKey) key;
-        } else if (key instanceof AndroidKeyStorePublicKey) {
-            keystoreKey = (AndroidKeyStoreKey) key;
-        } else {
-            throw new InvalidKeyException("Unsupported key type: " + key);
-        }
-
-        if (keystoreKey instanceof PrivateKey) {
-            // Private key
-            switch (opmode) {
-                case Cipher.DECRYPT_MODE:
-                case Cipher.UNWRAP_MODE:
-                    // Permitted
-                    break;
-                case Cipher.ENCRYPT_MODE:
-                case Cipher.WRAP_MODE:
-                    if (!adjustConfigForEncryptingWithPrivateKey()) {
-                        throw new InvalidKeyException(
-                                "RSA private keys cannot be used with " + opmodeToString(opmode)
-                                + " and padding "
-                                + KeyProperties.EncryptionPadding.fromKeymaster(mKeymasterPadding)
-                                + ". Only RSA public keys supported for this mode");
-                    }
-                    break;
-                default:
-                    throw new InvalidKeyException(
-                            "RSA private keys cannot be used with opmode: " + opmode);
-            }
-        } else {
-            // Public key
-            switch (opmode) {
-                case Cipher.ENCRYPT_MODE:
-                case Cipher.WRAP_MODE:
-                    // Permitted
-                    break;
-                case Cipher.DECRYPT_MODE:
-                case Cipher.UNWRAP_MODE:
-                    throw new InvalidKeyException(
-                            "RSA public keys cannot be used with " + opmodeToString(opmode)
-                            + " and padding "
-                            + KeyProperties.EncryptionPadding.fromKeymaster(mKeymasterPadding)
-                            + ". Only RSA private keys supported for this opmode.");
-                    // break;
-                default:
-                    throw new InvalidKeyException(
-                            "RSA public keys cannot be used with " + opmodeToString(opmode));
-            }
-        }
-
-        KeyCharacteristics keyCharacteristics = new KeyCharacteristics();
-        int errorCode = getKeyStore().getKeyCharacteristics(
-                keystoreKey.getAlias(), null, null, keystoreKey.getUid(), keyCharacteristics);
-        if (errorCode != KeyStore.NO_ERROR) {
-            throw getKeyStore().getInvalidKeyException(
-                    keystoreKey.getAlias(), keystoreKey.getUid(), errorCode);
-        }
-        long keySizeBits = keyCharacteristics.getUnsignedInt(KeymasterDefs.KM_TAG_KEY_SIZE, -1);
-        if (keySizeBits == -1) {
-            throw new InvalidKeyException("Size of key not known");
-        } else if (keySizeBits > Integer.MAX_VALUE) {
-            throw new InvalidKeyException("Key too large: " + keySizeBits + " bits");
-        }
-        mModulusSizeBytes = (int) ((keySizeBits + 7) / 8);
-
-        setKey(keystoreKey);
-    }
-
-    /**
-     * Adjusts the configuration of this cipher for encrypting using the private key.
-     *
-     * <p>The default implementation does nothing and refuses to adjust the configuration.
-     *
-     * @return {@code true} if the configuration has been adjusted, {@code false} if encrypting
-     *         using private key is not permitted for this cipher.
-     */
-    protected boolean adjustConfigForEncryptingWithPrivateKey() {
-        return false;
-    }
-
-    @Override
-    protected final void resetAll() {
-        mModulusSizeBytes = -1;
-        mKeymasterPaddingOverride = -1;
-        super.resetAll();
-    }
-
-    @Override
-    protected final void resetWhilePreservingInitState() {
-        super.resetWhilePreservingInitState();
-    }
-
-    @Override
-    protected void addAlgorithmSpecificParametersToBegin(
-            @NonNull KeymasterArguments keymasterArgs) {
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, KeymasterDefs.KM_ALGORITHM_RSA);
-        int keymasterPadding = getKeymasterPaddingOverride();
-        if (keymasterPadding == -1) {
-            keymasterPadding = mKeymasterPadding;
-        }
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_PADDING, keymasterPadding);
-        int purposeOverride = getKeymasterPurposeOverride();
-        if ((purposeOverride != -1)
-                && ((purposeOverride == KeymasterDefs.KM_PURPOSE_SIGN)
-                || (purposeOverride == KeymasterDefs.KM_PURPOSE_VERIFY))) {
-            // Keymaster sign/verify requires digest to be specified. For raw sign/verify it's NONE.
-            keymasterArgs.addEnum(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_NONE);
-        }
-    }
-
-    @Override
-    protected void loadAlgorithmSpecificParametersFromBeginResult(
-            @NonNull KeymasterArguments keymasterArgs) {
-    }
-
-    @Override
-    protected final int engineGetBlockSize() {
-        // Not a block cipher, according to the RI
-        return 0;
-    }
-
-    @Override
-    protected final byte[] engineGetIV() {
-        // IV never used
-        return null;
-    }
-
-    @Override
-    protected final int engineGetOutputSize(int inputLen) {
-        return getModulusSizeBytes();
-    }
-
-    protected final int getModulusSizeBytes() {
-        if (mModulusSizeBytes == -1) {
-            throw new IllegalStateException("Not initialized");
-        }
-        return mModulusSizeBytes;
-    }
-
-    /**
-     * Overrides the default padding of the crypto operation.
-     */
-    protected final void setKeymasterPaddingOverride(int keymasterPadding) {
-        mKeymasterPaddingOverride = keymasterPadding;
-    }
-
-    protected final int getKeymasterPaddingOverride() {
-        return mKeymasterPaddingOverride;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreRSAPrivateKey.java b/keystore/java/android/security/keystore/AndroidKeyStoreRSAPrivateKey.java
deleted file mode 100644
index adb3922..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreRSAPrivateKey.java
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import java.math.BigInteger;
-import java.security.PrivateKey;
-import java.security.interfaces.RSAKey;
-
-/**
- * RSA private key (instance of {@link PrivateKey} and {@link RSAKey}) backed by keystore.
- *
- * @hide
- */
-public class AndroidKeyStoreRSAPrivateKey extends AndroidKeyStorePrivateKey implements RSAKey {
-
-    private final BigInteger mModulus;
-
-    public AndroidKeyStoreRSAPrivateKey(String alias, int uid, BigInteger modulus) {
-        super(alias, uid, KeyProperties.KEY_ALGORITHM_RSA);
-        mModulus = modulus;
-    }
-
-    @Override
-    public BigInteger getModulus() {
-        return mModulus;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreRSAPublicKey.java b/keystore/java/android/security/keystore/AndroidKeyStoreRSAPublicKey.java
deleted file mode 100644
index d85aace..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreRSAPublicKey.java
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import java.math.BigInteger;
-import java.security.interfaces.RSAPublicKey;
-
-/**
- * {@link RSAPublicKey} backed by Android Keystore.
- *
- * @hide
- */
-public class AndroidKeyStoreRSAPublicKey extends AndroidKeyStorePublicKey implements RSAPublicKey {
-    private final BigInteger mModulus;
-    private final BigInteger mPublicExponent;
-
-    public AndroidKeyStoreRSAPublicKey(String alias, int uid, byte[] x509EncodedForm, BigInteger modulus,
-            BigInteger publicExponent) {
-        super(alias, uid, KeyProperties.KEY_ALGORITHM_RSA, x509EncodedForm);
-        mModulus = modulus;
-        mPublicExponent = publicExponent;
-    }
-
-    public AndroidKeyStoreRSAPublicKey(String alias, int uid, RSAPublicKey info) {
-        this(alias, uid, info.getEncoded(), info.getModulus(), info.getPublicExponent());
-        if (!"X.509".equalsIgnoreCase(info.getFormat())) {
-            throw new IllegalArgumentException(
-                    "Unsupported key export format: " + info.getFormat());
-        }
-    }
-
-    @Override
-    public BigInteger getModulus() {
-        return mModulus;
-    }
-
-    @Override
-    public BigInteger getPublicExponent() {
-        return mPublicExponent;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreRSASignatureSpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreRSASignatureSpi.java
deleted file mode 100644
index ecfc97e..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreRSASignatureSpi.java
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.annotation.NonNull;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-
-import java.security.InvalidKeyException;
-import java.security.SignatureSpi;
-
-/**
- * Base class for {@link SignatureSpi} providing Android KeyStore backed RSA signatures.
- *
- * @hide
- */
-abstract class AndroidKeyStoreRSASignatureSpi extends AndroidKeyStoreSignatureSpiBase {
-
-    abstract static class PKCS1Padding extends AndroidKeyStoreRSASignatureSpi {
-        PKCS1Padding(int keymasterDigest) {
-            super(keymasterDigest, KeymasterDefs.KM_PAD_RSA_PKCS1_1_5_SIGN);
-        }
-
-        @Override
-        protected final int getAdditionalEntropyAmountForSign() {
-            // No entropy required for this deterministic signature scheme.
-            return 0;
-        }
-    }
-
-    public static final class NONEWithPKCS1Padding extends PKCS1Padding {
-        public NONEWithPKCS1Padding() {
-            super(KeymasterDefs.KM_DIGEST_NONE);
-        }
-    }
-
-    public static final class MD5WithPKCS1Padding extends PKCS1Padding {
-        public MD5WithPKCS1Padding() {
-            super(KeymasterDefs.KM_DIGEST_MD5);
-        }
-    }
-
-    public static final class SHA1WithPKCS1Padding extends PKCS1Padding {
-        public SHA1WithPKCS1Padding() {
-            super(KeymasterDefs.KM_DIGEST_SHA1);
-        }
-    }
-
-    public static final class SHA224WithPKCS1Padding extends PKCS1Padding {
-        public SHA224WithPKCS1Padding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_224);
-        }
-    }
-
-    public static final class SHA256WithPKCS1Padding extends PKCS1Padding {
-        public SHA256WithPKCS1Padding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_256);
-        }
-    }
-
-    public static final class SHA384WithPKCS1Padding extends PKCS1Padding {
-        public SHA384WithPKCS1Padding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_384);
-        }
-    }
-
-    public static final class SHA512WithPKCS1Padding extends PKCS1Padding {
-        public SHA512WithPKCS1Padding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_512);
-        }
-    }
-
-    abstract static class PSSPadding extends AndroidKeyStoreRSASignatureSpi {
-        private static final int SALT_LENGTH_BYTES = 20;
-
-        PSSPadding(int keymasterDigest) {
-            super(keymasterDigest, KeymasterDefs.KM_PAD_RSA_PSS);
-        }
-
-        @Override
-        protected final int getAdditionalEntropyAmountForSign() {
-            return SALT_LENGTH_BYTES;
-        }
-    }
-
-    public static final class SHA1WithPSSPadding extends PSSPadding {
-        public SHA1WithPSSPadding() {
-            super(KeymasterDefs.KM_DIGEST_SHA1);
-        }
-    }
-
-    public static final class SHA224WithPSSPadding extends PSSPadding {
-        public SHA224WithPSSPadding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_224);
-        }
-    }
-
-    public static final class SHA256WithPSSPadding extends PSSPadding {
-        public SHA256WithPSSPadding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_256);
-        }
-    }
-
-    public static final class SHA384WithPSSPadding extends PSSPadding {
-        public SHA384WithPSSPadding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_384);
-        }
-    }
-
-    public static final class SHA512WithPSSPadding extends PSSPadding {
-        public SHA512WithPSSPadding() {
-            super(KeymasterDefs.KM_DIGEST_SHA_2_512);
-        }
-    }
-
-    private final int mKeymasterDigest;
-    private final int mKeymasterPadding;
-
-    AndroidKeyStoreRSASignatureSpi(int keymasterDigest, int keymasterPadding) {
-        mKeymasterDigest = keymasterDigest;
-        mKeymasterPadding = keymasterPadding;
-    }
-
-    @Override
-    protected final void initKey(AndroidKeyStoreKey key) throws InvalidKeyException {
-        if (!KeyProperties.KEY_ALGORITHM_RSA.equalsIgnoreCase(key.getAlgorithm())) {
-            throw new InvalidKeyException("Unsupported key algorithm: " + key.getAlgorithm()
-                    + ". Only" + KeyProperties.KEY_ALGORITHM_RSA + " supported");
-        }
-        super.initKey(key);
-    }
-
-    @Override
-    protected final void resetAll() {
-        super.resetAll();
-    }
-
-    @Override
-    protected final void resetWhilePreservingInitState() {
-        super.resetWhilePreservingInitState();
-    }
-
-    @Override
-    protected final void addAlgorithmSpecificParametersToBegin(
-            @NonNull KeymasterArguments keymasterArgs) {
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, KeymasterDefs.KM_ALGORITHM_RSA);
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_DIGEST, mKeymasterDigest);
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_PADDING, mKeymasterPadding);
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreSecretKey.java b/keystore/java/android/security/keystore/AndroidKeyStoreSecretKey.java
deleted file mode 100644
index b8e6af7..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreSecretKey.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import javax.crypto.SecretKey;
-
-/**
- * {@link SecretKey} backed by Android Keystore.
- *
- * @hide
- */
-public class AndroidKeyStoreSecretKey extends AndroidKeyStoreKey implements SecretKey {
-
-    public AndroidKeyStoreSecretKey(String alias, int uid, String algorithm) {
-        super(alias, uid, algorithm);
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreSecretKeyFactorySpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreSecretKeyFactorySpi.java
deleted file mode 100644
index d2678c7..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreSecretKeyFactorySpi.java
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.security.Credentials;
-import android.security.GateKeeper;
-import android.security.KeyStore;
-import android.security.keymaster.KeyCharacteristics;
-import android.security.keymaster.KeymasterDefs;
-
-import java.math.BigInteger;
-import java.security.InvalidKeyException;
-import java.security.ProviderException;
-import java.security.spec.InvalidKeySpecException;
-import java.security.spec.KeySpec;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
-import javax.crypto.SecretKey;
-import javax.crypto.SecretKeyFactorySpi;
-import javax.crypto.spec.SecretKeySpec;
-
-/**
- * {@link SecretKeyFactorySpi} backed by Android Keystore.
- *
- * @hide
- */
-public class AndroidKeyStoreSecretKeyFactorySpi extends SecretKeyFactorySpi {
-
-    private final KeyStore mKeyStore = KeyStore.getInstance();
-
-    @Override
-    protected KeySpec engineGetKeySpec(SecretKey key,
-            @SuppressWarnings("rawtypes") Class keySpecClass) throws InvalidKeySpecException {
-        if (keySpecClass == null) {
-            throw new InvalidKeySpecException("keySpecClass == null");
-        }
-        if (!(key instanceof AndroidKeyStoreSecretKey)) {
-            throw new InvalidKeySpecException("Only Android KeyStore secret keys supported: " +
-                    ((key != null) ? key.getClass().getName() : "null"));
-        }
-        if (SecretKeySpec.class.isAssignableFrom(keySpecClass)) {
-            throw new InvalidKeySpecException(
-                    "Key material export of Android KeyStore keys is not supported");
-        }
-        if (!KeyInfo.class.equals(keySpecClass)) {
-            throw new InvalidKeySpecException("Unsupported key spec: " + keySpecClass.getName());
-        }
-        AndroidKeyStoreKey keystoreKey = (AndroidKeyStoreKey) key;
-        String keyAliasInKeystore = keystoreKey.getAlias();
-        String entryAlias;
-        if (keyAliasInKeystore.startsWith(Credentials.USER_PRIVATE_KEY)) {
-            entryAlias = keyAliasInKeystore.substring(Credentials.USER_PRIVATE_KEY.length());
-        } else if (keyAliasInKeystore.startsWith(Credentials.USER_SECRET_KEY)){
-            // key has legacy prefix
-            entryAlias = keyAliasInKeystore.substring(Credentials.USER_SECRET_KEY.length());
-        } else {
-            throw new InvalidKeySpecException("Invalid key alias: " + keyAliasInKeystore);
-        }
-
-        return getKeyInfo(mKeyStore, entryAlias, keyAliasInKeystore, keystoreKey.getUid());
-    }
-
-    static KeyInfo getKeyInfo(KeyStore keyStore, String entryAlias, String keyAliasInKeystore,
-            int keyUid) {
-        KeyCharacteristics keyCharacteristics = new KeyCharacteristics();
-        int errorCode = keyStore.getKeyCharacteristics(
-                keyAliasInKeystore, null, null, keyUid, keyCharacteristics);
-        if (errorCode != KeyStore.NO_ERROR) {
-            throw new ProviderException("Failed to obtain information about key."
-                    + " Keystore error: " + errorCode);
-        }
-
-        boolean insideSecureHardware;
-        @KeyProperties.OriginEnum int origin;
-        int keySize;
-        @KeyProperties.PurposeEnum int purposes;
-        String[] encryptionPaddings;
-        String[] signaturePaddings;
-        @KeyProperties.DigestEnum String[] digests;
-        @KeyProperties.BlockModeEnum String[] blockModes;
-        int keymasterSwEnforcedUserAuthenticators;
-        int keymasterHwEnforcedUserAuthenticators;
-        List<BigInteger> keymasterSecureUserIds;
-        try {
-            if (keyCharacteristics.hwEnforced.containsTag(KeymasterDefs.KM_TAG_ORIGIN)) {
-                insideSecureHardware = true;
-                origin = KeyProperties.Origin.fromKeymaster(
-                        keyCharacteristics.hwEnforced.getEnum(KeymasterDefs.KM_TAG_ORIGIN, -1));
-            } else if (keyCharacteristics.swEnforced.containsTag(KeymasterDefs.KM_TAG_ORIGIN)) {
-                insideSecureHardware = false;
-                origin = KeyProperties.Origin.fromKeymaster(
-                        keyCharacteristics.swEnforced.getEnum(KeymasterDefs.KM_TAG_ORIGIN, -1));
-            } else {
-                throw new ProviderException("Key origin not available");
-            }
-            long keySizeUnsigned =
-                    keyCharacteristics.getUnsignedInt(KeymasterDefs.KM_TAG_KEY_SIZE, -1);
-            if (keySizeUnsigned == -1) {
-                throw new ProviderException("Key size not available");
-            } else if (keySizeUnsigned > Integer.MAX_VALUE) {
-                throw new ProviderException("Key too large: " + keySizeUnsigned + " bits");
-            }
-            keySize = (int) keySizeUnsigned;
-            purposes = KeyProperties.Purpose.allFromKeymaster(
-                    keyCharacteristics.getEnums(KeymasterDefs.KM_TAG_PURPOSE));
-
-            List<String> encryptionPaddingsList = new ArrayList<String>();
-            List<String> signaturePaddingsList = new ArrayList<String>();
-            // Keymaster stores both types of paddings in the same array -- we split it into two.
-            for (int keymasterPadding : keyCharacteristics.getEnums(KeymasterDefs.KM_TAG_PADDING)) {
-                try {
-                    @KeyProperties.EncryptionPaddingEnum String jcaPadding =
-                            KeyProperties.EncryptionPadding.fromKeymaster(keymasterPadding);
-                    encryptionPaddingsList.add(jcaPadding);
-                } catch (IllegalArgumentException e) {
-                    try {
-                        @KeyProperties.SignaturePaddingEnum String padding =
-                                KeyProperties.SignaturePadding.fromKeymaster(keymasterPadding);
-                        signaturePaddingsList.add(padding);
-                    } catch (IllegalArgumentException e2) {
-                        throw new ProviderException(
-                                "Unsupported encryption padding: " + keymasterPadding);
-                    }
-                }
-
-            }
-            encryptionPaddings =
-                    encryptionPaddingsList.toArray(new String[encryptionPaddingsList.size()]);
-            signaturePaddings =
-                    signaturePaddingsList.toArray(new String[signaturePaddingsList.size()]);
-
-            digests = KeyProperties.Digest.allFromKeymaster(
-                    keyCharacteristics.getEnums(KeymasterDefs.KM_TAG_DIGEST));
-            blockModes = KeyProperties.BlockMode.allFromKeymaster(
-                    keyCharacteristics.getEnums(KeymasterDefs.KM_TAG_BLOCK_MODE));
-            keymasterSwEnforcedUserAuthenticators =
-                    keyCharacteristics.swEnforced.getEnum(KeymasterDefs.KM_TAG_USER_AUTH_TYPE, 0);
-            keymasterHwEnforcedUserAuthenticators =
-                    keyCharacteristics.hwEnforced.getEnum(KeymasterDefs.KM_TAG_USER_AUTH_TYPE, 0);
-            keymasterSecureUserIds =
-                keyCharacteristics.getUnsignedLongs(KeymasterDefs.KM_TAG_USER_SECURE_ID);
-        } catch (IllegalArgumentException e) {
-            throw new ProviderException("Unsupported key characteristic", e);
-        }
-
-        Date keyValidityStart = keyCharacteristics.getDate(KeymasterDefs.KM_TAG_ACTIVE_DATETIME);
-        Date keyValidityForOriginationEnd =
-                keyCharacteristics.getDate(KeymasterDefs.KM_TAG_ORIGINATION_EXPIRE_DATETIME);
-        Date keyValidityForConsumptionEnd =
-                keyCharacteristics.getDate(KeymasterDefs.KM_TAG_USAGE_EXPIRE_DATETIME);
-        boolean userAuthenticationRequired =
-                !keyCharacteristics.getBoolean(KeymasterDefs.KM_TAG_NO_AUTH_REQUIRED);
-        long userAuthenticationValidityDurationSeconds =
-                keyCharacteristics.getUnsignedInt(KeymasterDefs.KM_TAG_AUTH_TIMEOUT, 0);
-        if (userAuthenticationValidityDurationSeconds > Integer.MAX_VALUE) {
-            throw new ProviderException("User authentication timeout validity too long: "
-                    + userAuthenticationValidityDurationSeconds + " seconds");
-        }
-        boolean userAuthenticationRequirementEnforcedBySecureHardware = (userAuthenticationRequired)
-                && (keymasterHwEnforcedUserAuthenticators != 0)
-                && (keymasterSwEnforcedUserAuthenticators == 0);
-        boolean userAuthenticationValidWhileOnBody =
-                keyCharacteristics.hwEnforced.getBoolean(KeymasterDefs.KM_TAG_ALLOW_WHILE_ON_BODY);
-        boolean trustedUserPresenceRequired =
-                keyCharacteristics.hwEnforced.getBoolean(
-                    KeymasterDefs.KM_TAG_TRUSTED_USER_PRESENCE_REQUIRED);
-
-        boolean invalidatedByBiometricEnrollment = false;
-        if (keymasterSwEnforcedUserAuthenticators == KeymasterDefs.HW_AUTH_BIOMETRIC
-            || keymasterHwEnforcedUserAuthenticators == KeymasterDefs.HW_AUTH_BIOMETRIC) {
-            // Fingerprint-only key; will be invalidated if the root SID isn't in the SID list.
-            invalidatedByBiometricEnrollment = keymasterSecureUserIds != null
-                    && !keymasterSecureUserIds.isEmpty()
-                    && !keymasterSecureUserIds.contains(getGateKeeperSecureUserId());
-        }
-
-        boolean userConfirmationRequired = keyCharacteristics.hwEnforced.getBoolean(KeymasterDefs.KM_TAG_TRUSTED_CONFIRMATION_REQUIRED);
-
-        return new KeyInfo(entryAlias,
-                insideSecureHardware,
-                origin,
-                keySize,
-                keyValidityStart,
-                keyValidityForOriginationEnd,
-                keyValidityForConsumptionEnd,
-                purposes,
-                encryptionPaddings,
-                signaturePaddings,
-                digests,
-                blockModes,
-                userAuthenticationRequired,
-                (int) userAuthenticationValidityDurationSeconds,
-                keymasterHwEnforcedUserAuthenticators,
-                userAuthenticationRequirementEnforcedBySecureHardware,
-                userAuthenticationValidWhileOnBody,
-                trustedUserPresenceRequired,
-                invalidatedByBiometricEnrollment,
-                userConfirmationRequired,
-                // Keystore 1.0 does not tell us the exact security level of the key
-                // so we report an unknown but secure security level.
-                insideSecureHardware ? KeyProperties.SECURITY_LEVEL_UNKNOWN_SECURE
-                        : KeyProperties.SECURITY_LEVEL_SOFTWARE,
-                KeyProperties.UNRESTRICTED_USAGE_COUNT);
-    }
-
-    private static BigInteger getGateKeeperSecureUserId() throws ProviderException {
-    	try {
-    		return BigInteger.valueOf(GateKeeper.getSecureUserId());
-    	} catch (IllegalStateException e) {
-    		throw new ProviderException("Failed to get GateKeeper secure user ID", e);
-    	}
-    }
-
-    @Override
-    protected SecretKey engineGenerateSecret(KeySpec keySpec) throws InvalidKeySpecException {
-        throw new InvalidKeySpecException(
-                "To generate secret key in Android Keystore, use KeyGenerator initialized with "
-                        + KeyGenParameterSpec.class.getName());
-    }
-
-    @Override
-    protected SecretKey engineTranslateKey(SecretKey key) throws InvalidKeyException {
-        if (key == null) {
-            throw new InvalidKeyException("key == null");
-        } else if (!(key instanceof AndroidKeyStoreSecretKey)) {
-            throw new InvalidKeyException(
-                    "To import a secret key into Android Keystore, use KeyStore.setEntry");
-        }
-
-        return key;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreSignatureSpiBase.java b/keystore/java/android/security/keystore/AndroidKeyStoreSignatureSpiBase.java
deleted file mode 100644
index da47b6b..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreSignatureSpiBase.java
+++ /dev/null
@@ -1,431 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.annotation.CallSuper;
-import android.annotation.NonNull;
-import android.os.IBinder;
-import android.security.KeyStore;
-import android.security.KeyStoreException;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-import android.security.keymaster.OperationResult;
-
-import libcore.util.EmptyArray;
-
-import java.nio.ByteBuffer;
-import java.security.InvalidKeyException;
-import java.security.InvalidParameterException;
-import java.security.PrivateKey;
-import java.security.ProviderException;
-import java.security.PublicKey;
-import java.security.SecureRandom;
-import java.security.SignatureException;
-import java.security.SignatureSpi;
-
-/**
- * Base class for {@link SignatureSpi} implementations of Android KeyStore backed ciphers.
- *
- * @hide
- */
-abstract class AndroidKeyStoreSignatureSpiBase extends SignatureSpi
-        implements KeyStoreCryptoOperation {
-    private final KeyStore mKeyStore;
-
-    // Fields below are populated by SignatureSpi.engineInitSign/engineInitVerify and KeyStore.begin
-    // and should be preserved after SignatureSpi.engineSign/engineVerify finishes.
-    private boolean mSigning;
-    private AndroidKeyStoreKey mKey;
-
-    /**
-     * Token referencing this operation inside keystore service. It is initialized by
-     * {@code engineInitSign}/{@code engineInitVerify} and is invalidated when
-     * {@code engineSign}/{@code engineVerify} succeeds and on some error conditions in between.
-     */
-    private IBinder mOperationToken;
-    private long mOperationHandle;
-    private KeyStoreCryptoOperationStreamer mMessageStreamer;
-
-    /**
-     * Encountered exception which could not be immediately thrown because it was encountered inside
-     * a method that does not throw checked exception. This exception will be thrown from
-     * {@code engineSign} or {@code engineVerify}. Once such an exception is encountered,
-     * {@code engineUpdate} starts ignoring input data.
-     */
-    private Exception mCachedException;
-
-    AndroidKeyStoreSignatureSpiBase() {
-        mKeyStore = KeyStore.getInstance();
-    }
-
-    @Override
-    protected final void engineInitSign(PrivateKey key) throws InvalidKeyException {
-        engineInitSign(key, null);
-    }
-
-    @Override
-    protected final void engineInitSign(PrivateKey privateKey, SecureRandom random)
-            throws InvalidKeyException {
-        resetAll();
-
-        boolean success = false;
-        try {
-            if (privateKey == null) {
-                throw new InvalidKeyException("Unsupported key: null");
-            }
-            AndroidKeyStoreKey keystoreKey;
-            if (privateKey instanceof AndroidKeyStorePrivateKey) {
-                keystoreKey = (AndroidKeyStoreKey) privateKey;
-            } else {
-                throw new InvalidKeyException("Unsupported private key type: " + privateKey);
-            }
-            mSigning = true;
-            initKey(keystoreKey);
-            appRandom = random;
-            ensureKeystoreOperationInitialized();
-            success = true;
-        } finally {
-            if (!success) {
-                resetAll();
-            }
-        }
-    }
-
-    @Override
-    protected final void engineInitVerify(PublicKey publicKey) throws InvalidKeyException {
-        resetAll();
-
-        boolean success = false;
-        try {
-            if (publicKey == null) {
-                throw new InvalidKeyException("Unsupported key: null");
-            }
-            AndroidKeyStoreKey keystoreKey;
-            if (publicKey instanceof AndroidKeyStorePublicKey) {
-                keystoreKey = (AndroidKeyStorePublicKey) publicKey;
-            } else {
-                throw new InvalidKeyException("Unsupported public key type: " + publicKey);
-            }
-            mSigning = false;
-            initKey(keystoreKey);
-            appRandom = null;
-            ensureKeystoreOperationInitialized();
-            success = true;
-        } finally {
-            if (!success) {
-                resetAll();
-            }
-        }
-    }
-
-    /**
-     * Configures this signature instance to use the provided key.
-     *
-     * @throws InvalidKeyException if the {@code key} is not suitable.
-     */
-    @CallSuper
-    protected void initKey(AndroidKeyStoreKey key) throws InvalidKeyException {
-        mKey = key;
-    }
-
-    /**
-     * Resets this cipher to its pristine pre-init state. This must be equivalent to obtaining a new
-     * cipher instance.
-     *
-     * <p>Subclasses storing additional state should override this method, reset the additional
-     * state, and then chain to superclass.
-     */
-    @CallSuper
-    protected void resetAll() {
-        IBinder operationToken = mOperationToken;
-        if (operationToken != null) {
-            mOperationToken = null;
-            mKeyStore.abort(operationToken);
-        }
-        mSigning = false;
-        mKey = null;
-        appRandom = null;
-        mOperationToken = null;
-        mOperationHandle = 0;
-        mMessageStreamer = null;
-        mCachedException = null;
-    }
-
-    /**
-     * Resets this cipher while preserving the initialized state. This must be equivalent to
-     * rolling back the cipher's state to just after the most recent {@code engineInit} completed
-     * successfully.
-     *
-     * <p>Subclasses storing additional post-init state should override this method, reset the
-     * additional state, and then chain to superclass.
-     */
-    @CallSuper
-    protected void resetWhilePreservingInitState() {
-        IBinder operationToken = mOperationToken;
-        if (operationToken != null) {
-            mOperationToken = null;
-            mKeyStore.abort(operationToken);
-        }
-        mOperationHandle = 0;
-        mMessageStreamer = null;
-        mCachedException = null;
-    }
-
-    private void ensureKeystoreOperationInitialized() throws InvalidKeyException {
-        if (mMessageStreamer != null) {
-            return;
-        }
-        if (mCachedException != null) {
-            return;
-        }
-        if (mKey == null) {
-            throw new IllegalStateException("Not initialized");
-        }
-
-        KeymasterArguments keymasterInputArgs = new KeymasterArguments();
-        addAlgorithmSpecificParametersToBegin(keymasterInputArgs);
-
-        OperationResult opResult = mKeyStore.begin(
-                mKey.getAlias(),
-                mSigning ? KeymasterDefs.KM_PURPOSE_SIGN : KeymasterDefs.KM_PURPOSE_VERIFY,
-                true, // permit aborting this operation if keystore runs out of resources
-                keymasterInputArgs,
-                null, // no additional entropy for begin -- only finish might need some
-                mKey.getUid());
-        if (opResult == null) {
-            throw new KeyStoreConnectException();
-        }
-
-        // Store operation token and handle regardless of the error code returned by KeyStore to
-        // ensure that the operation gets aborted immediately if the code below throws an exception.
-        mOperationToken = opResult.token;
-        mOperationHandle = opResult.operationHandle;
-
-        // If necessary, throw an exception due to KeyStore operation having failed.
-        InvalidKeyException e = KeyStoreCryptoOperationUtils.getInvalidKeyExceptionForInit(
-                mKeyStore, mKey, opResult.resultCode);
-        if (e != null) {
-            throw e;
-        }
-
-        if (mOperationToken == null) {
-            throw new ProviderException("Keystore returned null operation token");
-        }
-        if (mOperationHandle == 0) {
-            throw new ProviderException("Keystore returned invalid operation handle");
-        }
-
-        mMessageStreamer = createMainDataStreamer(mKeyStore, opResult.token);
-    }
-
-    /**
-     * Creates a streamer which sends the message to be signed/verified into the provided KeyStore
-     *
-     * <p>This implementation returns a working streamer.
-     */
-    @NonNull
-    protected KeyStoreCryptoOperationStreamer createMainDataStreamer(
-            KeyStore keyStore, IBinder operationToken) {
-        return new KeyStoreCryptoOperationChunkedStreamer(
-                new KeyStoreCryptoOperationChunkedStreamer.MainDataStream(
-                        keyStore, operationToken));
-    }
-
-    @Override
-    public final long getOperationHandle() {
-        return mOperationHandle;
-    }
-
-    @Override
-    protected final void engineUpdate(byte[] b, int off, int len) throws SignatureException {
-        if (mCachedException != null) {
-            throw new SignatureException(mCachedException);
-        }
-
-        try {
-            ensureKeystoreOperationInitialized();
-        } catch (InvalidKeyException e) {
-            throw new SignatureException(e);
-        }
-
-        if (len == 0) {
-            return;
-        }
-
-        byte[] output;
-        try {
-            output = mMessageStreamer.update(b, off, len);
-        } catch (KeyStoreException e) {
-            throw new SignatureException(e);
-        }
-
-        if (output.length != 0) {
-            throw new ProviderException(
-                    "Update operation unexpectedly produced output: " + output.length + " bytes");
-        }
-    }
-
-    @Override
-    protected final void engineUpdate(byte b) throws SignatureException {
-        engineUpdate(new byte[] {b}, 0, 1);
-    }
-
-    @Override
-    protected final void engineUpdate(ByteBuffer input) {
-        byte[] b;
-        int off;
-        int len = input.remaining();
-        if (input.hasArray()) {
-            b = input.array();
-            off = input.arrayOffset() + input.position();
-            input.position(input.limit());
-        } else {
-            b = new byte[len];
-            off = 0;
-            input.get(b);
-        }
-
-        try {
-            engineUpdate(b, off, len);
-        } catch (SignatureException e) {
-            mCachedException = e;
-        }
-    }
-
-    @Override
-    protected final int engineSign(byte[] out, int outOffset, int outLen)
-            throws SignatureException {
-        return super.engineSign(out, outOffset, outLen);
-    }
-
-    @Override
-    protected final byte[] engineSign() throws SignatureException {
-        if (mCachedException != null) {
-            throw new SignatureException(mCachedException);
-        }
-
-        byte[] signature;
-        try {
-            ensureKeystoreOperationInitialized();
-
-            byte[] additionalEntropy =
-                    KeyStoreCryptoOperationUtils.getRandomBytesToMixIntoKeystoreRng(
-                            appRandom, getAdditionalEntropyAmountForSign());
-            signature = mMessageStreamer.doFinal(
-                    EmptyArray.BYTE, 0, 0,
-                    null, // no signature provided -- it'll be generated by this invocation
-                    additionalEntropy);
-        } catch (InvalidKeyException | KeyStoreException e) {
-            throw new SignatureException(e);
-        }
-
-        resetWhilePreservingInitState();
-        return signature;
-    }
-
-    @Override
-    protected final boolean engineVerify(byte[] signature) throws SignatureException {
-        if (mCachedException != null) {
-            throw new SignatureException(mCachedException);
-        }
-
-        try {
-            ensureKeystoreOperationInitialized();
-        } catch (InvalidKeyException e) {
-            throw new SignatureException(e);
-        }
-
-        boolean verified;
-        try {
-            byte[] output = mMessageStreamer.doFinal(
-                    EmptyArray.BYTE, 0, 0,
-                    signature,
-                    null // no additional entropy needed -- verification is deterministic
-                    );
-            if (output.length != 0) {
-                throw new ProviderException(
-                        "Signature verification unexpected produced output: " + output.length
-                        + " bytes");
-            }
-            verified = true;
-        } catch (KeyStoreException e) {
-            switch (e.getErrorCode()) {
-                case KeymasterDefs.KM_ERROR_VERIFICATION_FAILED:
-                    verified = false;
-                    break;
-                default:
-                    throw new SignatureException(e);
-            }
-        }
-
-        resetWhilePreservingInitState();
-        return verified;
-    }
-
-    @Override
-    protected final boolean engineVerify(byte[] sigBytes, int offset, int len)
-            throws SignatureException {
-        return engineVerify(ArrayUtils.subarray(sigBytes, offset, len));
-    }
-
-    @Deprecated
-    @Override
-    protected final Object engineGetParameter(String param) throws InvalidParameterException {
-        throw new InvalidParameterException();
-    }
-
-    @Deprecated
-    @Override
-    protected final void engineSetParameter(String param, Object value)
-            throws InvalidParameterException {
-        throw new InvalidParameterException();
-    }
-
-    protected final KeyStore getKeyStore() {
-        return mKeyStore;
-    }
-
-    /**
-     * Returns {@code true} if this signature is initialized for signing, {@code false} if this
-     * signature is initialized for verification.
-     */
-    protected final boolean isSigning() {
-        return mSigning;
-    }
-
-    // The methods below need to be implemented by subclasses.
-
-    /**
-     * Returns the amount of additional entropy (in bytes) to be provided to the KeyStore's
-     * {@code finish} operation when generating a signature.
-     *
-     * <p>This value should match (or exceed) the amount of Shannon entropy of the produced
-     * signature assuming the key and the message are known. For example, for ECDSA signature this
-     * should be the size of {@code R}, whereas for the RSA signature with PKCS#1 padding this
-     * should be {@code 0}.
-     */
-    protected abstract int getAdditionalEntropyAmountForSign();
-
-    /**
-     * Invoked to add algorithm-specific parameters for the KeyStore's {@code begin} operation.
-     *
-     * @param keymasterArgs keystore/keymaster arguments to be populated with algorithm-specific
-     *        parameters.
-     */
-    protected abstract void addAlgorithmSpecificParametersToBegin(
-            @NonNull KeymasterArguments keymasterArgs);
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreSpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreSpi.java
deleted file mode 100644
index 51c4252..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreSpi.java
+++ /dev/null
@@ -1,1112 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.security.Credentials;
-import android.security.GateKeeper;
-import android.security.KeyStore;
-import android.security.KeyStoreParameter;
-import android.security.keymaster.KeyCharacteristics;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-import android.security.keystore.KeyPermanentlyInvalidatedException;
-import android.security.keystore.KeyProperties;
-import android.security.keystore.KeyProtection;
-import android.security.keystore.SecureKeyImportUnavailableException;
-import android.security.keystore.WrappedKeyEntry;
-import android.util.Log;
-
-import libcore.util.EmptyArray;
-
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.security.Key;
-import java.security.KeyStore.Entry;
-import java.security.KeyStore.LoadStoreParameter;
-import java.security.KeyStore.PrivateKeyEntry;
-import java.security.KeyStore.ProtectionParameter;
-import java.security.KeyStore.SecretKeyEntry;
-import java.security.KeyStoreException;
-import java.security.KeyStoreSpi;
-import java.security.NoSuchAlgorithmException;
-import java.security.PrivateKey;
-import java.security.ProviderException;
-import java.security.PublicKey;
-import java.security.UnrecoverableKeyException;
-import java.security.cert.Certificate;
-import java.security.cert.CertificateEncodingException;
-import java.security.cert.CertificateException;
-import java.security.cert.CertificateFactory;
-import java.security.cert.X509Certificate;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Date;
-import java.util.Enumeration;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.Set;
-
-import javax.crypto.SecretKey;
-
-/**
- * A java.security.KeyStore interface for the Android KeyStore. An instance of
- * it can be created via the {@link java.security.KeyStore#getInstance(String)
- * KeyStore.getInstance("AndroidKeyStore")} interface. This returns a
- * java.security.KeyStore backed by this "AndroidKeyStore" implementation.
- * <p>
- * This is built on top of Android's keystore daemon. The convention of alias
- * use is:
- * <p>
- * PrivateKeyEntry will have a Credentials.USER_PRIVATE_KEY as the private key,
- * Credentials.USER_CERTIFICATE as the first certificate in the chain (the one
- * that corresponds to the private key), and then a Credentials.CA_CERTIFICATE
- * entry which will have the rest of the chain concatenated in BER format.
- * <p>
- * TrustedCertificateEntry will just have a Credentials.CA_CERTIFICATE entry
- * with a single certificate.
- *
- * @hide
- */
-public class AndroidKeyStoreSpi extends KeyStoreSpi {
-    public static final String NAME = "AndroidKeyStore";
-
-    private KeyStore mKeyStore;
-    private int mUid = KeyStore.UID_SELF;
-
-    @Override
-    public Key engineGetKey(String alias, char[] password) throws NoSuchAlgorithmException,
-            UnrecoverableKeyException {
-        String userKeyAlias = Credentials.USER_PRIVATE_KEY + alias;
-        AndroidKeyStoreKey key;
-        if (!mKeyStore.contains(userKeyAlias, mUid)) {
-            // try legacy prefix for backward compatibility
-            userKeyAlias = Credentials.USER_SECRET_KEY + alias;
-            if (!mKeyStore.contains(userKeyAlias, mUid)) return null;
-        }
-        try {
-            key = AndroidKeyStoreProvider.loadAndroidKeyStoreKeyFromKeystore(mKeyStore,
-                                                                             userKeyAlias,
-                                                                             mUid);
-        } catch (KeyPermanentlyInvalidatedException e) {
-            throw new UnrecoverableKeyException(e.getMessage());
-        }
-        return key;
-    }
-
-    @Override
-    public Certificate[] engineGetCertificateChain(String alias) {
-        if (alias == null) {
-            throw new NullPointerException("alias == null");
-        }
-
-        final X509Certificate leaf = (X509Certificate) engineGetCertificate(alias);
-        if (leaf == null) {
-            return null;
-        }
-
-        final Certificate[] caList;
-
-        // Suppress the key not found warning for this call. It seems that this error is exclusively
-        // being thrown when there is a self signed certificate chain, so when the keystore service
-        // attempts to query for the CA details, it obviously fails to find them and returns a
-        // key not found exception. This is WAI, and throwing a stack trace here can be very
-        // misleading since the trace is not clear.
-        final byte[] caBytes = mKeyStore.get(Credentials.CA_CERTIFICATE + alias,
-                                             mUid,
-                                             true /* suppressKeyNotFoundWarning */);
-        if (caBytes != null) {
-            final Collection<X509Certificate> caChain = toCertificates(caBytes);
-
-            caList = new Certificate[caChain.size() + 1];
-
-            final Iterator<X509Certificate> it = caChain.iterator();
-            int i = 1;
-            while (it.hasNext()) {
-                caList[i++] = it.next();
-            }
-        } else {
-            caList = new Certificate[1];
-        }
-
-        caList[0] = leaf;
-
-        return caList;
-    }
-
-    @Override
-    public Certificate engineGetCertificate(String alias) {
-        if (alias == null) {
-            throw new NullPointerException("alias == null");
-        }
-
-        byte[] encodedCert = mKeyStore.get(Credentials.USER_CERTIFICATE + alias, mUid);
-        if (encodedCert != null) {
-            return getCertificateForPrivateKeyEntry(alias, encodedCert);
-        }
-
-        encodedCert = mKeyStore.get(Credentials.CA_CERTIFICATE + alias, mUid);
-        if (encodedCert != null) {
-            return getCertificateForTrustedCertificateEntry(encodedCert);
-        }
-
-        // This entry/alias does not contain a certificate.
-        return null;
-    }
-
-    private Certificate getCertificateForTrustedCertificateEntry(byte[] encodedCert) {
-        // For this certificate there shouldn't be a private key in this KeyStore entry. Thus,
-        // there's no need to wrap this certificate as opposed to the certificate associated with
-        // a private key entry.
-        return toCertificate(encodedCert);
-    }
-
-    private Certificate getCertificateForPrivateKeyEntry(String alias, byte[] encodedCert) {
-        // All crypto algorithms offered by Android Keystore for its private keys must also
-        // be offered for the corresponding public keys stored in the Android Keystore. The
-        // complication is that the underlying keystore service operates only on full key pairs,
-        // rather than just public keys or private keys. As a result, Android Keystore-backed
-        // crypto can only be offered for public keys for which keystore contains the
-        // corresponding private key. This is not the case for certificate-only entries (e.g.,
-        // trusted certificates).
-        //
-        // getCertificate().getPublicKey() is the only way to obtain the public key
-        // corresponding to the private key stored in the KeyStore. Thus, we need to make sure
-        // that the returned public key points to the underlying key pair / private key
-        // when available.
-
-        X509Certificate cert = toCertificate(encodedCert);
-        if (cert == null) {
-            // Failed to parse the certificate.
-            return null;
-        }
-
-        String privateKeyAlias = Credentials.USER_PRIVATE_KEY + alias;
-        if (mKeyStore.contains(privateKeyAlias, mUid)) {
-            // As expected, keystore contains the private key corresponding to this public key. Wrap
-            // the certificate so that its getPublicKey method returns an Android Keystore
-            // PublicKey. This key will delegate crypto operations involving this public key to
-            // Android Keystore when higher-priority providers do not offer these crypto
-            // operations for this key.
-            return wrapIntoKeyStoreCertificate(privateKeyAlias, mUid, cert);
-        } else {
-            // This KeyStore entry/alias is supposed to contain the private key corresponding to
-            // the public key in this certificate, but it does not for some reason. It's probably a
-            // bug. Let other providers handle crypto operations involving the public key returned
-            // by this certificate's getPublicKey.
-            return cert;
-        }
-    }
-
-    /**
-     * Wraps the provided cerificate into {@link KeyStoreX509Certificate} so that the public key
-     * returned by the certificate contains information about the alias of the private key in
-     * keystore. This is needed so that Android Keystore crypto operations using public keys can
-     * find out which key alias to use. These operations cannot work without an alias.
-     */
-    private static KeyStoreX509Certificate wrapIntoKeyStoreCertificate(
-            String privateKeyAlias, int uid, X509Certificate certificate) {
-        return (certificate != null)
-                ? new KeyStoreX509Certificate(privateKeyAlias, uid, certificate) : null;
-    }
-
-    private static X509Certificate toCertificate(byte[] bytes) {
-        try {
-            final CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
-            return (X509Certificate) certFactory.generateCertificate(
-                    new ByteArrayInputStream(bytes));
-        } catch (CertificateException e) {
-            Log.w(NAME, "Couldn't parse certificate in keystore", e);
-            return null;
-        }
-    }
-
-    @SuppressWarnings("unchecked")
-    private static Collection<X509Certificate> toCertificates(byte[] bytes) {
-        try {
-            final CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
-            return (Collection<X509Certificate>) certFactory.generateCertificates(
-                            new ByteArrayInputStream(bytes));
-        } catch (CertificateException e) {
-            Log.w(NAME, "Couldn't parse certificates in keystore", e);
-            return new ArrayList<X509Certificate>();
-        }
-    }
-
-    private Date getModificationDate(String alias) {
-        final long epochMillis = mKeyStore.getmtime(alias, mUid);
-        if (epochMillis == -1L) {
-            return null;
-        }
-
-        return new Date(epochMillis);
-    }
-
-    @Override
-    public Date engineGetCreationDate(String alias) {
-        if (alias == null) {
-            throw new NullPointerException("alias == null");
-        }
-
-        Date d = getModificationDate(Credentials.USER_PRIVATE_KEY + alias);
-        if (d != null) {
-            return d;
-        }
-
-        d = getModificationDate(Credentials.USER_SECRET_KEY + alias);
-        if (d != null) {
-            return d;
-        }
-
-        d = getModificationDate(Credentials.USER_CERTIFICATE + alias);
-        if (d != null) {
-            return d;
-        }
-
-        return getModificationDate(Credentials.CA_CERTIFICATE + alias);
-    }
-
-    @Override
-    public void engineSetKeyEntry(String alias, Key key, char[] password, Certificate[] chain)
-            throws KeyStoreException {
-        if ((password != null) && (password.length > 0)) {
-            throw new KeyStoreException("entries cannot be protected with passwords");
-        }
-
-        if (key instanceof PrivateKey) {
-            setPrivateKeyEntry(alias, (PrivateKey) key, chain, null);
-        } else if (key instanceof SecretKey) {
-            setSecretKeyEntry(alias, (SecretKey) key, null);
-        } else {
-            throw new KeyStoreException("Only PrivateKey and SecretKey are supported");
-        }
-    }
-
-    private static KeyProtection getLegacyKeyProtectionParameter(PrivateKey key)
-            throws KeyStoreException {
-        String keyAlgorithm = key.getAlgorithm();
-        KeyProtection.Builder specBuilder;
-        if (KeyProperties.KEY_ALGORITHM_EC.equalsIgnoreCase(keyAlgorithm)) {
-            specBuilder =
-                    new KeyProtection.Builder(
-                            KeyProperties.PURPOSE_SIGN | KeyProperties.PURPOSE_VERIFY);
-            // Authorized to be used with any digest (including no digest).
-            // MD5 was never offered for Android Keystore for ECDSA.
-            specBuilder.setDigests(
-                    KeyProperties.DIGEST_NONE,
-                    KeyProperties.DIGEST_SHA1,
-                    KeyProperties.DIGEST_SHA224,
-                    KeyProperties.DIGEST_SHA256,
-                    KeyProperties.DIGEST_SHA384,
-                    KeyProperties.DIGEST_SHA512);
-        } else if (KeyProperties.KEY_ALGORITHM_RSA.equalsIgnoreCase(keyAlgorithm)) {
-            specBuilder =
-                    new KeyProtection.Builder(
-                            KeyProperties.PURPOSE_ENCRYPT
-                            | KeyProperties.PURPOSE_DECRYPT
-                            | KeyProperties.PURPOSE_SIGN
-                            | KeyProperties.PURPOSE_VERIFY);
-            // Authorized to be used with any digest (including no digest).
-            specBuilder.setDigests(
-                    KeyProperties.DIGEST_NONE,
-                    KeyProperties.DIGEST_MD5,
-                    KeyProperties.DIGEST_SHA1,
-                    KeyProperties.DIGEST_SHA224,
-                    KeyProperties.DIGEST_SHA256,
-                    KeyProperties.DIGEST_SHA384,
-                    KeyProperties.DIGEST_SHA512);
-            // Authorized to be used with any encryption and signature padding
-            // schemes (including no padding).
-            specBuilder.setEncryptionPaddings(
-                    KeyProperties.ENCRYPTION_PADDING_NONE,
-                    KeyProperties.ENCRYPTION_PADDING_RSA_PKCS1,
-                    KeyProperties.ENCRYPTION_PADDING_RSA_OAEP);
-            specBuilder.setSignaturePaddings(
-                    KeyProperties.SIGNATURE_PADDING_RSA_PKCS1,
-                    KeyProperties.SIGNATURE_PADDING_RSA_PSS);
-            // Disable randomized encryption requirement to support encryption
-            // padding NONE above.
-            specBuilder.setRandomizedEncryptionRequired(false);
-        } else {
-            throw new KeyStoreException("Unsupported key algorithm: " + keyAlgorithm);
-        }
-        specBuilder.setUserAuthenticationRequired(false);
-
-        return specBuilder.build();
-    }
-
-    private void setPrivateKeyEntry(String alias, PrivateKey key, Certificate[] chain,
-            java.security.KeyStore.ProtectionParameter param) throws KeyStoreException {
-        int flags = 0;
-        KeyProtection spec;
-        if (param == null) {
-            spec = getLegacyKeyProtectionParameter(key);
-        } else if (param instanceof KeyStoreParameter) {
-            spec = getLegacyKeyProtectionParameter(key);
-            KeyStoreParameter legacySpec = (KeyStoreParameter) param;
-            if (legacySpec.isEncryptionRequired()) {
-                flags = KeyStore.FLAG_ENCRYPTED;
-            }
-        } else if (param instanceof KeyProtection) {
-            spec = (KeyProtection) param;
-            if (spec.isCriticalToDeviceEncryption()) {
-                flags |= KeyStore.FLAG_CRITICAL_TO_DEVICE_ENCRYPTION;
-            }
-
-            if (spec.isStrongBoxBacked()) {
-                flags |= KeyStore.FLAG_STRONGBOX;
-            }
-        } else {
-            throw new KeyStoreException(
-                    "Unsupported protection parameter class:" + param.getClass().getName()
-                    + ". Supported: " + KeyProtection.class.getName() + ", "
-                    + KeyStoreParameter.class.getName());
-        }
-
-        // Make sure the chain exists since this is a PrivateKey
-        if ((chain == null) || (chain.length == 0)) {
-            throw new KeyStoreException("Must supply at least one Certificate with PrivateKey");
-        }
-
-        // Do chain type checking.
-        X509Certificate[] x509chain = new X509Certificate[chain.length];
-        for (int i = 0; i < chain.length; i++) {
-            if (!"X.509".equals(chain[i].getType())) {
-                throw new KeyStoreException("Certificates must be in X.509 format: invalid cert #"
-                        + i);
-            }
-
-            if (!(chain[i] instanceof X509Certificate)) {
-                throw new KeyStoreException("Certificates must be in X.509 format: invalid cert #"
-                        + i);
-            }
-
-            x509chain[i] = (X509Certificate) chain[i];
-        }
-
-        final byte[] userCertBytes;
-        try {
-            userCertBytes = x509chain[0].getEncoded();
-        } catch (CertificateEncodingException e) {
-            throw new KeyStoreException("Failed to encode certificate #0", e);
-        }
-
-        /*
-         * If we have a chain, store it in the CA certificate slot for this
-         * alias as concatenated DER-encoded certificates. These can be
-         * deserialized by {@link CertificateFactory#generateCertificates}.
-         */
-        final byte[] chainBytes;
-        if (chain.length > 1) {
-            /*
-             * The chain is passed in as {user_cert, ca_cert_1, ca_cert_2, ...}
-             * so we only need the certificates starting at index 1.
-             */
-            final byte[][] certsBytes = new byte[x509chain.length - 1][];
-            int totalCertLength = 0;
-            for (int i = 0; i < certsBytes.length; i++) {
-                try {
-                    certsBytes[i] = x509chain[i + 1].getEncoded();
-                    totalCertLength += certsBytes[i].length;
-                } catch (CertificateEncodingException e) {
-                    throw new KeyStoreException("Failed to encode certificate #" + i, e);
-                }
-            }
-
-            /*
-             * Serialize this into one byte array so we can later call
-             * CertificateFactory#generateCertificates to recover them.
-             */
-            chainBytes = new byte[totalCertLength];
-            int outputOffset = 0;
-            for (int i = 0; i < certsBytes.length; i++) {
-                final int certLength = certsBytes[i].length;
-                System.arraycopy(certsBytes[i], 0, chainBytes, outputOffset, certLength);
-                outputOffset += certLength;
-                certsBytes[i] = null;
-            }
-        } else {
-            chainBytes = null;
-        }
-
-        final String pkeyAlias;
-        if (key instanceof AndroidKeyStorePrivateKey) {
-            pkeyAlias = ((AndroidKeyStoreKey) key).getAlias();
-        } else {
-            pkeyAlias = null;
-        }
-
-        byte[] pkcs8EncodedPrivateKeyBytes;
-        KeymasterArguments importArgs;
-        final boolean shouldReplacePrivateKey;
-        if (pkeyAlias != null && pkeyAlias.startsWith(Credentials.USER_PRIVATE_KEY)) {
-            final String keySubalias = pkeyAlias.substring(Credentials.USER_PRIVATE_KEY.length());
-            if (!alias.equals(keySubalias)) {
-                throw new KeyStoreException("Can only replace keys with same alias: " + alias
-                        + " != " + keySubalias);
-            }
-            shouldReplacePrivateKey = false;
-            importArgs = null;
-            pkcs8EncodedPrivateKeyBytes = null;
-        } else {
-            shouldReplacePrivateKey = true;
-            // Make sure the PrivateKey format is the one we support.
-            final String keyFormat = key.getFormat();
-            if ((keyFormat == null) || (!"PKCS#8".equals(keyFormat))) {
-                throw new KeyStoreException(
-                        "Unsupported private key export format: " + keyFormat
-                        + ". Only private keys which export their key material in PKCS#8 format are"
-                        + " supported.");
-            }
-
-            // Make sure we can actually encode the key.
-            pkcs8EncodedPrivateKeyBytes = key.getEncoded();
-            if (pkcs8EncodedPrivateKeyBytes == null) {
-                throw new KeyStoreException("Private key did not export any key material");
-            }
-
-            importArgs = new KeymasterArguments();
-            try {
-                importArgs.addEnum(KeymasterDefs.KM_TAG_ALGORITHM,
-                        KeyProperties.KeyAlgorithm.toKeymasterAsymmetricKeyAlgorithm(
-                                key.getAlgorithm()));
-                @KeyProperties.PurposeEnum int purposes = spec.getPurposes();
-                importArgs.addEnums(KeymasterDefs.KM_TAG_PURPOSE,
-                        KeyProperties.Purpose.allToKeymaster(purposes));
-                if (spec.isDigestsSpecified()) {
-                    importArgs.addEnums(KeymasterDefs.KM_TAG_DIGEST,
-                            KeyProperties.Digest.allToKeymaster(spec.getDigests()));
-                }
-
-                importArgs.addEnums(KeymasterDefs.KM_TAG_BLOCK_MODE,
-                        KeyProperties.BlockMode.allToKeymaster(spec.getBlockModes()));
-                int[] keymasterEncryptionPaddings =
-                        KeyProperties.EncryptionPadding.allToKeymaster(
-                                spec.getEncryptionPaddings());
-                if (((purposes & KeyProperties.PURPOSE_ENCRYPT) != 0)
-                        && (spec.isRandomizedEncryptionRequired())) {
-                    for (int keymasterPadding : keymasterEncryptionPaddings) {
-                        if (!KeymasterUtils
-                                .isKeymasterPaddingSchemeIndCpaCompatibleWithAsymmetricCrypto(
-                                        keymasterPadding)) {
-                            throw new KeyStoreException(
-                                    "Randomized encryption (IND-CPA) required but is violated by"
-                                    + " encryption padding mode: "
-                                    + KeyProperties.EncryptionPadding.fromKeymaster(
-                                            keymasterPadding)
-                                    + ". See KeyProtection documentation.");
-                        }
-                    }
-                }
-                importArgs.addEnums(KeymasterDefs.KM_TAG_PADDING, keymasterEncryptionPaddings);
-                importArgs.addEnums(KeymasterDefs.KM_TAG_PADDING,
-                        KeyProperties.SignaturePadding.allToKeymaster(spec.getSignaturePaddings()));
-                KeymasterUtils.addUserAuthArgs(importArgs, spec);
-                importArgs.addDateIfNotNull(KeymasterDefs.KM_TAG_ACTIVE_DATETIME,
-                        spec.getKeyValidityStart());
-                importArgs.addDateIfNotNull(KeymasterDefs.KM_TAG_ORIGINATION_EXPIRE_DATETIME,
-                        spec.getKeyValidityForOriginationEnd());
-                importArgs.addDateIfNotNull(KeymasterDefs.KM_TAG_USAGE_EXPIRE_DATETIME,
-                        spec.getKeyValidityForConsumptionEnd());
-            } catch (IllegalArgumentException | IllegalStateException e) {
-                throw new KeyStoreException(e);
-            }
-        }
-
-
-        boolean success = false;
-        try {
-            // Store the private key, if necessary
-            if (shouldReplacePrivateKey) {
-                // Delete the stored private key and any related entries before importing the
-                // provided key
-                Credentials.deleteAllTypesForAlias(mKeyStore, alias, mUid);
-                KeyCharacteristics resultingKeyCharacteristics = new KeyCharacteristics();
-                int errorCode = mKeyStore.importKey(
-                        Credentials.USER_PRIVATE_KEY + alias,
-                        importArgs,
-                        KeymasterDefs.KM_KEY_FORMAT_PKCS8,
-                        pkcs8EncodedPrivateKeyBytes,
-                        mUid,
-                        flags,
-                        resultingKeyCharacteristics);
-                if (errorCode != KeyStore.NO_ERROR) {
-                    throw new KeyStoreException("Failed to store private key",
-                            KeyStore.getKeyStoreException(errorCode));
-                }
-            } else {
-                // Keep the stored private key around -- delete all other entry types
-                Credentials.deleteCertificateTypesForAlias(mKeyStore, alias, mUid);
-                Credentials.deleteLegacyKeyForAlias(mKeyStore, alias, mUid);
-            }
-
-            // Store the leaf certificate
-            int errorCode = mKeyStore.insert(Credentials.USER_CERTIFICATE + alias, userCertBytes,
-                    mUid, flags);
-            if (errorCode != KeyStore.NO_ERROR) {
-                throw new KeyStoreException("Failed to store certificate #0",
-                        KeyStore.getKeyStoreException(errorCode));
-            }
-
-            // Store the certificate chain
-            errorCode = mKeyStore.insert(Credentials.CA_CERTIFICATE + alias, chainBytes,
-                    mUid, flags);
-            if (errorCode != KeyStore.NO_ERROR) {
-                throw new KeyStoreException("Failed to store certificate chain",
-                        KeyStore.getKeyStoreException(errorCode));
-            }
-            success = true;
-        } finally {
-            if (!success) {
-                if (shouldReplacePrivateKey) {
-                    Credentials.deleteAllTypesForAlias(mKeyStore, alias, mUid);
-                } else {
-                    Credentials.deleteCertificateTypesForAlias(mKeyStore, alias, mUid);
-                    Credentials.deleteLegacyKeyForAlias(mKeyStore, alias, mUid);
-                }
-            }
-        }
-    }
-
-    private void setSecretKeyEntry(String entryAlias, SecretKey key,
-            java.security.KeyStore.ProtectionParameter param)
-            throws KeyStoreException {
-        if ((param != null) && (!(param instanceof KeyProtection))) {
-            throw new KeyStoreException(
-                    "Unsupported protection parameter class: " + param.getClass().getName()
-                    + ". Supported: " + KeyProtection.class.getName());
-        }
-        KeyProtection params = (KeyProtection) param;
-
-        if (key instanceof AndroidKeyStoreSecretKey) {
-            // KeyStore-backed secret key. It cannot be duplicated into another entry and cannot
-            // overwrite its own entry.
-            String keyAliasInKeystore = ((AndroidKeyStoreSecretKey) key).getAlias();
-            if (keyAliasInKeystore == null) {
-                throw new KeyStoreException("KeyStore-backed secret key does not have an alias");
-            }
-            String keyAliasPrefix = Credentials.USER_PRIVATE_KEY;
-            if (!keyAliasInKeystore.startsWith(keyAliasPrefix)) {
-                // try legacy prefix
-                keyAliasPrefix = Credentials.USER_SECRET_KEY;
-                if (!keyAliasInKeystore.startsWith(keyAliasPrefix)) {
-                    throw new KeyStoreException("KeyStore-backed secret key has invalid alias: "
-                            + keyAliasInKeystore);
-                }
-            }
-            String keyEntryAlias =
-                    keyAliasInKeystore.substring(keyAliasPrefix.length());
-            if (!entryAlias.equals(keyEntryAlias)) {
-                throw new KeyStoreException("Can only replace KeyStore-backed keys with same"
-                        + " alias: " + entryAlias + " != " + keyEntryAlias);
-            }
-            // This is the entry where this key is already stored. No need to do anything.
-            if (params != null) {
-                throw new KeyStoreException("Modifying KeyStore-backed key using protection"
-                        + " parameters not supported");
-            }
-            return;
-        }
-
-        if (params == null) {
-            throw new KeyStoreException(
-                    "Protection parameters must be specified when importing a symmetric key");
-        }
-
-        // Not a KeyStore-backed secret key -- import its key material into keystore.
-        String keyExportFormat = key.getFormat();
-        if (keyExportFormat == null) {
-            throw new KeyStoreException(
-                    "Only secret keys that export their key material are supported");
-        } else if (!"RAW".equals(keyExportFormat)) {
-            throw new KeyStoreException(
-                    "Unsupported secret key material export format: " + keyExportFormat);
-        }
-        byte[] keyMaterial = key.getEncoded();
-        if (keyMaterial == null) {
-            throw new KeyStoreException("Key did not export its key material despite supporting"
-                    + " RAW format export");
-        }
-
-        KeymasterArguments args = new KeymasterArguments();
-        try {
-            int keymasterAlgorithm =
-                    KeyProperties.KeyAlgorithm.toKeymasterSecretKeyAlgorithm(key.getAlgorithm());
-            args.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, keymasterAlgorithm);
-
-            int[] keymasterDigests;
-            if (keymasterAlgorithm == KeymasterDefs.KM_ALGORITHM_HMAC) {
-                // JCA HMAC key algorithm implies a digest (e.g., HmacSHA256 key algorithm
-                // implies SHA-256 digest). Because keymaster HMAC key is authorized only for one
-                // digest, we don't let import parameters override the digest implied by the key.
-                // If the parameters specify digests at all, they must specify only one digest, the
-                // only implied by key algorithm.
-                int keymasterImpliedDigest =
-                        KeyProperties.KeyAlgorithm.toKeymasterDigest(key.getAlgorithm());
-                if (keymasterImpliedDigest == -1) {
-                    throw new ProviderException(
-                            "HMAC key algorithm digest unknown for key algorithm "
-                                    + key.getAlgorithm());
-                }
-                keymasterDigests = new int[] {keymasterImpliedDigest};
-                if (params.isDigestsSpecified()) {
-                    // Digest(s) explicitly specified in params -- check that the list consists of
-                    // exactly one digest, the one implied by key algorithm.
-                    int[] keymasterDigestsFromParams =
-                            KeyProperties.Digest.allToKeymaster(params.getDigests());
-                    if ((keymasterDigestsFromParams.length != 1)
-                            || (keymasterDigestsFromParams[0] != keymasterImpliedDigest)) {
-                        throw new KeyStoreException(
-                                "Unsupported digests specification: "
-                                + Arrays.asList(params.getDigests()) + ". Only "
-                                + KeyProperties.Digest.fromKeymaster(keymasterImpliedDigest)
-                                + " supported for HMAC key algorithm " + key.getAlgorithm());
-                    }
-                }
-            } else {
-                // Key algorithm does not imply a digest.
-                if (params.isDigestsSpecified()) {
-                    keymasterDigests = KeyProperties.Digest.allToKeymaster(params.getDigests());
-                } else {
-                    keymasterDigests = EmptyArray.INT;
-                }
-            }
-            args.addEnums(KeymasterDefs.KM_TAG_DIGEST, keymasterDigests);
-
-            @KeyProperties.PurposeEnum int purposes = params.getPurposes();
-            int[] keymasterBlockModes =
-                    KeyProperties.BlockMode.allToKeymaster(params.getBlockModes());
-            if (((purposes & KeyProperties.PURPOSE_ENCRYPT) != 0)
-                    && (params.isRandomizedEncryptionRequired())) {
-                for (int keymasterBlockMode : keymasterBlockModes) {
-                    if (!KeymasterUtils.isKeymasterBlockModeIndCpaCompatibleWithSymmetricCrypto(
-                            keymasterBlockMode)) {
-                        throw new KeyStoreException(
-                                "Randomized encryption (IND-CPA) required but may be violated by"
-                                + " block mode: "
-                                + KeyProperties.BlockMode.fromKeymaster(keymasterBlockMode)
-                                + ". See KeyProtection documentation.");
-                    }
-                }
-            }
-            args.addEnums(KeymasterDefs.KM_TAG_PURPOSE,
-                    KeyProperties.Purpose.allToKeymaster(purposes));
-            args.addEnums(KeymasterDefs.KM_TAG_BLOCK_MODE, keymasterBlockModes);
-            if (params.getSignaturePaddings().length > 0) {
-                throw new KeyStoreException("Signature paddings not supported for symmetric keys");
-            }
-            int[] keymasterPaddings = KeyProperties.EncryptionPadding.allToKeymaster(
-                    params.getEncryptionPaddings());
-            args.addEnums(KeymasterDefs.KM_TAG_PADDING, keymasterPaddings);
-            KeymasterUtils.addUserAuthArgs(args, params);
-            KeymasterUtils.addMinMacLengthAuthorizationIfNecessary(
-                    args,
-                    keymasterAlgorithm,
-                    keymasterBlockModes,
-                    keymasterDigests);
-            args.addDateIfNotNull(KeymasterDefs.KM_TAG_ACTIVE_DATETIME,
-                    params.getKeyValidityStart());
-            args.addDateIfNotNull(KeymasterDefs.KM_TAG_ORIGINATION_EXPIRE_DATETIME,
-                    params.getKeyValidityForOriginationEnd());
-            args.addDateIfNotNull(KeymasterDefs.KM_TAG_USAGE_EXPIRE_DATETIME,
-                    params.getKeyValidityForConsumptionEnd());
-
-            if (((purposes & KeyProperties.PURPOSE_ENCRYPT) != 0)
-                    && (!params.isRandomizedEncryptionRequired())) {
-                // Permit caller-provided IV when encrypting with this key
-                args.addBoolean(KeymasterDefs.KM_TAG_CALLER_NONCE);
-            }
-        } catch (IllegalArgumentException | IllegalStateException e) {
-            throw new KeyStoreException(e);
-        }
-        int flags = 0;
-        if (params.isCriticalToDeviceEncryption()) {
-            flags |= KeyStore.FLAG_CRITICAL_TO_DEVICE_ENCRYPTION;
-        }
-        if (params.isStrongBoxBacked()) {
-            flags |= KeyStore.FLAG_STRONGBOX;
-        }
-
-        Credentials.deleteAllTypesForAlias(mKeyStore, entryAlias, mUid);
-        String keyAliasInKeystore = Credentials.USER_PRIVATE_KEY + entryAlias;
-        int errorCode = mKeyStore.importKey(
-                keyAliasInKeystore,
-                args,
-                KeymasterDefs.KM_KEY_FORMAT_RAW,
-                keyMaterial,
-                mUid,
-                flags,
-                new KeyCharacteristics());
-        if (errorCode != KeyStore.NO_ERROR) {
-            throw new KeyStoreException("Failed to import secret key. Keystore error code: "
-                + errorCode);
-        }
-    }
-
-    private void setWrappedKeyEntry(String alias, WrappedKeyEntry entry,
-            java.security.KeyStore.ProtectionParameter param) throws KeyStoreException {
-        if (param != null) {
-            throw new KeyStoreException("Protection parameters are specified inside wrapped keys");
-        }
-
-        byte[] maskingKey = new byte[32];
-
-
-        KeymasterArguments args = new KeymasterArguments();
-        String[] parts = entry.getTransformation().split("/");
-
-        String algorithm = parts[0];
-        if (KeyProperties.KEY_ALGORITHM_RSA.equalsIgnoreCase(algorithm)) {
-            args.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, KeymasterDefs.KM_ALGORITHM_RSA);
-        } else if (KeyProperties.KEY_ALGORITHM_EC.equalsIgnoreCase(algorithm)) {
-            args.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, KeymasterDefs.KM_ALGORITHM_RSA);
-        }
-
-        if (parts.length > 1) {
-            String mode = parts[1];
-            if (KeyProperties.BLOCK_MODE_ECB.equalsIgnoreCase(mode)) {
-                args.addEnums(KeymasterDefs.KM_TAG_BLOCK_MODE, KeymasterDefs.KM_MODE_ECB);
-            } else if (KeyProperties.BLOCK_MODE_CBC.equalsIgnoreCase(mode)) {
-                args.addEnums(KeymasterDefs.KM_TAG_BLOCK_MODE, KeymasterDefs.KM_MODE_CBC);
-            } else if (KeyProperties.BLOCK_MODE_CTR.equalsIgnoreCase(mode)) {
-                args.addEnums(KeymasterDefs.KM_TAG_BLOCK_MODE, KeymasterDefs.KM_MODE_CTR);
-            } else if (KeyProperties.BLOCK_MODE_GCM.equalsIgnoreCase(mode)) {
-                args.addEnums(KeymasterDefs.KM_TAG_BLOCK_MODE, KeymasterDefs.KM_MODE_GCM);
-            }
-        }
-
-        if (parts.length > 2) {
-            String padding = parts[2];
-            if (KeyProperties.ENCRYPTION_PADDING_NONE.equalsIgnoreCase(padding)) {
-                // Noop
-            } else if (KeyProperties.ENCRYPTION_PADDING_PKCS7.equalsIgnoreCase(padding)) {
-                args.addEnums(KeymasterDefs.KM_TAG_PADDING, KeymasterDefs.KM_PAD_PKCS7);
-            } else if (KeyProperties.ENCRYPTION_PADDING_RSA_PKCS1.equalsIgnoreCase(padding)) {
-                args.addEnums(KeymasterDefs.KM_TAG_PADDING,
-                    KeymasterDefs.KM_PAD_RSA_PKCS1_1_5_ENCRYPT);
-            } else if (KeyProperties.ENCRYPTION_PADDING_RSA_OAEP.equalsIgnoreCase(padding)) {
-                args.addEnums(KeymasterDefs.KM_TAG_PADDING, KeymasterDefs.KM_PAD_RSA_OAEP);
-            }
-        }
-
-        KeyGenParameterSpec spec = (KeyGenParameterSpec) entry.getAlgorithmParameterSpec();
-        if (spec.isDigestsSpecified()) {
-            String digest = spec.getDigests()[0];
-            if (KeyProperties.DIGEST_NONE.equalsIgnoreCase(digest)) {
-                // Noop
-            } else if (KeyProperties.DIGEST_MD5.equalsIgnoreCase(digest)) {
-                args.addEnums(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_MD5);
-            } else if (KeyProperties.DIGEST_SHA1.equalsIgnoreCase(digest)) {
-                args.addEnums(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_SHA1);
-            } else if (KeyProperties.DIGEST_SHA224.equalsIgnoreCase(digest)) {
-                args.addEnums(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_SHA_2_224);
-            } else if (KeyProperties.DIGEST_SHA256.equalsIgnoreCase(digest)) {
-                args.addEnums(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_SHA_2_256);
-            } else if (KeyProperties.DIGEST_SHA384.equalsIgnoreCase(digest)) {
-                args.addEnums(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_SHA_2_384);
-            } else if (KeyProperties.DIGEST_SHA512.equalsIgnoreCase(digest)) {
-                args.addEnums(KeymasterDefs.KM_TAG_DIGEST, KeymasterDefs.KM_DIGEST_SHA_2_512);
-            }
-        }
-
-        int errorCode = mKeyStore.importWrappedKey(
-            Credentials.USER_PRIVATE_KEY + alias,
-            entry.getWrappedKeyBytes(),
-            Credentials.USER_PRIVATE_KEY + entry.getWrappingKeyAlias(),
-            maskingKey,
-            args,
-            GateKeeper.getSecureUserId(),
-            0, // FIXME fingerprint id?
-            mUid,
-            new KeyCharacteristics());
-        if (errorCode == KeymasterDefs.KM_ERROR_UNIMPLEMENTED) {
-          throw new SecureKeyImportUnavailableException("Could not import wrapped key");
-        } else if (errorCode != KeyStore.NO_ERROR) {
-            throw new KeyStoreException("Failed to import wrapped key. Keystore error code: "
-                + errorCode);
-        }
-    }
-
-    @Override
-    public void engineSetKeyEntry(String alias, byte[] userKey, Certificate[] chain)
-            throws KeyStoreException {
-        throw new KeyStoreException("Operation not supported because key encoding is unknown");
-    }
-
-    @Override
-    public void engineSetCertificateEntry(String alias, Certificate cert) throws KeyStoreException {
-        if (isKeyEntry(alias)) {
-            throw new KeyStoreException("Entry exists and is not a trusted certificate");
-        }
-
-        // We can't set something to null.
-        if (cert == null) {
-            throw new NullPointerException("cert == null");
-        }
-
-        final byte[] encoded;
-        try {
-            encoded = cert.getEncoded();
-        } catch (CertificateEncodingException e) {
-            throw new KeyStoreException(e);
-        }
-
-        if (!mKeyStore.put(Credentials.CA_CERTIFICATE + alias, encoded, mUid, KeyStore.FLAG_NONE)) {
-            throw new KeyStoreException("Couldn't insert certificate; is KeyStore initialized?");
-        }
-    }
-
-    @Override
-    public void engineDeleteEntry(String alias) throws KeyStoreException {
-        if (!Credentials.deleteAllTypesForAlias(mKeyStore, alias, mUid)) {
-            throw new KeyStoreException("Failed to delete entry: " + alias);
-        }
-    }
-
-    private Set<String> getUniqueAliases() {
-        final String[] rawAliases = mKeyStore.list("", mUid);
-        if (rawAliases == null) {
-            return new HashSet<String>();
-        }
-
-        final Set<String> aliases = new HashSet<String>(rawAliases.length);
-        for (String alias : rawAliases) {
-            final int idx = alias.indexOf('_');
-            if ((idx == -1) || (alias.length() <= idx)) {
-                Log.e(NAME, "invalid alias: " + alias);
-                continue;
-            }
-
-            aliases.add(new String(alias.substring(idx + 1)));
-        }
-
-        return aliases;
-    }
-
-    @Override
-    public Enumeration<String> engineAliases() {
-        return Collections.enumeration(getUniqueAliases());
-    }
-
-    @Override
-    public boolean engineContainsAlias(String alias) {
-        if (alias == null) {
-            throw new NullPointerException("alias == null");
-        }
-
-        return mKeyStore.contains(Credentials.USER_PRIVATE_KEY + alias, mUid)
-                || mKeyStore.contains(Credentials.USER_SECRET_KEY + alias, mUid)
-                || mKeyStore.contains(Credentials.USER_CERTIFICATE + alias, mUid)
-                || mKeyStore.contains(Credentials.CA_CERTIFICATE + alias, mUid);
-    }
-
-    @Override
-    public int engineSize() {
-        return getUniqueAliases().size();
-    }
-
-    @Override
-    public boolean engineIsKeyEntry(String alias) {
-        return isKeyEntry(alias);
-    }
-
-    private boolean isKeyEntry(String alias) {
-        return mKeyStore.contains(Credentials.USER_PRIVATE_KEY + alias, mUid) ||
-                mKeyStore.contains(Credentials.USER_SECRET_KEY + alias, mUid);
-    }
-
-
-    private boolean isCertificateEntry(String alias) {
-        if (alias == null) {
-            throw new NullPointerException("alias == null");
-        }
-
-        return mKeyStore.contains(Credentials.CA_CERTIFICATE + alias, mUid);
-    }
-
-    @Override
-    public boolean engineIsCertificateEntry(String alias) {
-        return !isKeyEntry(alias) && isCertificateEntry(alias);
-    }
-
-    @Override
-    public String engineGetCertificateAlias(Certificate cert) {
-        if (cert == null) {
-            return null;
-        }
-        if (!"X.509".equalsIgnoreCase(cert.getType())) {
-            // Only X.509 certificates supported
-            return null;
-        }
-        byte[] targetCertBytes;
-        try {
-            targetCertBytes = cert.getEncoded();
-        } catch (CertificateEncodingException e) {
-            return null;
-        }
-        if (targetCertBytes == null) {
-            return null;
-        }
-
-        final Set<String> nonCaEntries = new HashSet<String>();
-
-        /*
-         * First scan the PrivateKeyEntry types. The KeyStoreSpi documentation
-         * says to only compare the first certificate in the chain which is
-         * equivalent to the USER_CERTIFICATE prefix for the Android keystore
-         * convention.
-         */
-        final String[] certAliases = mKeyStore.list(Credentials.USER_CERTIFICATE, mUid);
-        if (certAliases != null) {
-            for (String alias : certAliases) {
-                final byte[] certBytes = mKeyStore.get(Credentials.USER_CERTIFICATE + alias, mUid);
-                if (certBytes == null) {
-                    continue;
-                }
-
-                nonCaEntries.add(alias);
-
-                if (Arrays.equals(certBytes, targetCertBytes)) {
-                    return alias;
-                }
-            }
-        }
-
-        /*
-         * Look at all the TrustedCertificateEntry types. Skip all the
-         * PrivateKeyEntry we looked at above.
-         */
-        final String[] caAliases = mKeyStore.list(Credentials.CA_CERTIFICATE, mUid);
-        if (certAliases != null) {
-            for (String alias : caAliases) {
-                if (nonCaEntries.contains(alias)) {
-                    continue;
-                }
-
-                final byte[] certBytes = mKeyStore.get(Credentials.CA_CERTIFICATE + alias, mUid);
-                if (certBytes == null) {
-                    continue;
-                }
-
-                if (Arrays.equals(certBytes, targetCertBytes)) {
-                    return alias;
-                }
-            }
-        }
-
-        return null;
-    }
-
-    @Override
-    public void engineStore(OutputStream stream, char[] password) throws IOException,
-            NoSuchAlgorithmException, CertificateException {
-        throw new UnsupportedOperationException("Can not serialize AndroidKeyStore to OutputStream");
-    }
-
-    @Override
-    public void engineLoad(InputStream stream, char[] password) throws IOException,
-            NoSuchAlgorithmException, CertificateException {
-        if (stream != null) {
-            throw new IllegalArgumentException("InputStream not supported");
-        }
-
-        if (password != null) {
-            throw new IllegalArgumentException("password not supported");
-        }
-
-        // Unfortunate name collision.
-        mKeyStore = KeyStore.getInstance();
-        mUid = KeyStore.UID_SELF;
-    }
-
-    @Override
-    public void engineLoad(LoadStoreParameter param) throws IOException,
-            NoSuchAlgorithmException, CertificateException {
-        int uid = KeyStore.UID_SELF;
-        if (param != null) {
-            if (param instanceof AndroidKeyStoreLoadStoreParameter) {
-                uid = ((AndroidKeyStoreLoadStoreParameter) param).getUid();
-            } else {
-                throw new IllegalArgumentException(
-                        "Unsupported param type: " + param.getClass());
-            }
-        }
-        mKeyStore = KeyStore.getInstance();
-        mUid = uid;
-    }
-
-    @Override
-    public void engineSetEntry(String alias, Entry entry, ProtectionParameter param)
-            throws KeyStoreException {
-        if (entry == null) {
-            throw new KeyStoreException("entry == null");
-        }
-
-        Credentials.deleteAllTypesForAlias(mKeyStore, alias, mUid);
-
-        if (entry instanceof java.security.KeyStore.TrustedCertificateEntry) {
-            java.security.KeyStore.TrustedCertificateEntry trE =
-                    (java.security.KeyStore.TrustedCertificateEntry) entry;
-            engineSetCertificateEntry(alias, trE.getTrustedCertificate());
-            return;
-        }
-
-        if (entry instanceof PrivateKeyEntry) {
-            PrivateKeyEntry prE = (PrivateKeyEntry) entry;
-            setPrivateKeyEntry(alias, prE.getPrivateKey(), prE.getCertificateChain(), param);
-        } else if (entry instanceof SecretKeyEntry) {
-            SecretKeyEntry secE = (SecretKeyEntry) entry;
-            setSecretKeyEntry(alias, secE.getSecretKey(), param);
-        } else if (entry instanceof WrappedKeyEntry) {
-            WrappedKeyEntry wke = (WrappedKeyEntry) entry;
-            setWrappedKeyEntry(alias, wke, param);
-        } else {
-            throw new KeyStoreException(
-                    "Entry must be a PrivateKeyEntry, SecretKeyEntry or TrustedCertificateEntry"
-                    + "; was " + entry);
-        }
-    }
-
-    /**
-     * {@link X509Certificate} which returns {@link AndroidKeyStorePublicKey} from
-     * {@link #getPublicKey()}. This is so that crypto operations on these public keys contain
-     * can find out which keystore private key entry to use. This is needed so that Android Keystore
-     * crypto operations using public keys can find out which key alias to use. These operations
-     * require an alias.
-     */
-    static class KeyStoreX509Certificate extends DelegatingX509Certificate {
-        private final String mPrivateKeyAlias;
-        private final int mPrivateKeyUid;
-        KeyStoreX509Certificate(String privateKeyAlias, int privateKeyUid,
-                X509Certificate delegate) {
-            super(delegate);
-            mPrivateKeyAlias = privateKeyAlias;
-            mPrivateKeyUid = privateKeyUid;
-        }
-
-        @Override
-        public PublicKey getPublicKey() {
-            PublicKey original = super.getPublicKey();
-            return AndroidKeyStoreProvider.getAndroidKeyStorePublicKey(
-                    mPrivateKeyAlias, mPrivateKeyUid,
-                    original.getAlgorithm(), original.getEncoded());
-        }
-    }
-}
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreUnauthenticatedAESCipherSpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreUnauthenticatedAESCipherSpi.java
deleted file mode 100644
index 1f1d36f..0000000
--- a/keystore/java/android/security/keystore/AndroidKeyStoreUnauthenticatedAESCipherSpi.java
+++ /dev/null
@@ -1,319 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.annotation.NonNull;
-import android.annotation.Nullable;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-
-import java.security.AlgorithmParameters;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.Key;
-import java.security.NoSuchAlgorithmException;
-import java.security.ProviderException;
-import java.security.spec.AlgorithmParameterSpec;
-import java.security.spec.InvalidParameterSpecException;
-import java.util.Arrays;
-
-import javax.crypto.CipherSpi;
-import javax.crypto.spec.IvParameterSpec;
-
-/**
- * Base class for Android Keystore unauthenticated AES {@link CipherSpi} implementations.
- *
- * @hide
- */
-class AndroidKeyStoreUnauthenticatedAESCipherSpi extends AndroidKeyStoreCipherSpiBase {
-
-    abstract static class ECB extends AndroidKeyStoreUnauthenticatedAESCipherSpi {
-        protected ECB(int keymasterPadding) {
-            super(KeymasterDefs.KM_MODE_ECB, keymasterPadding, false);
-        }
-
-        public static class NoPadding extends ECB {
-            public NoPadding() {
-                super(KeymasterDefs.KM_PAD_NONE);
-            }
-        }
-
-        public static class PKCS7Padding extends ECB {
-            public PKCS7Padding() {
-                super(KeymasterDefs.KM_PAD_PKCS7);
-            }
-        }
-    }
-
-    abstract static class CBC extends AndroidKeyStoreUnauthenticatedAESCipherSpi {
-        protected CBC(int keymasterPadding) {
-            super(KeymasterDefs.KM_MODE_CBC, keymasterPadding, true);
-        }
-
-        public static class NoPadding extends CBC {
-            public NoPadding() {
-                super(KeymasterDefs.KM_PAD_NONE);
-            }
-        }
-
-        public static class PKCS7Padding extends CBC {
-            public PKCS7Padding() {
-                super(KeymasterDefs.KM_PAD_PKCS7);
-            }
-        }
-    }
-
-    abstract static class CTR extends AndroidKeyStoreUnauthenticatedAESCipherSpi {
-        protected CTR(int keymasterPadding) {
-            super(KeymasterDefs.KM_MODE_CTR, keymasterPadding, true);
-        }
-
-        public static class NoPadding extends CTR {
-            public NoPadding() {
-                super(KeymasterDefs.KM_PAD_NONE);
-            }
-        }
-    }
-
-    private static final int BLOCK_SIZE_BYTES = 16;
-
-    private final int mKeymasterBlockMode;
-    private final int mKeymasterPadding;
-    /** Whether this transformation requires an IV. */
-    private final boolean mIvRequired;
-
-    private byte[] mIv;
-
-    /** Whether the current {@code #mIv} has been used by the underlying crypto operation. */
-    private boolean mIvHasBeenUsed;
-
-    AndroidKeyStoreUnauthenticatedAESCipherSpi(
-            int keymasterBlockMode,
-            int keymasterPadding,
-            boolean ivRequired) {
-        mKeymasterBlockMode = keymasterBlockMode;
-        mKeymasterPadding = keymasterPadding;
-        mIvRequired = ivRequired;
-    }
-
-    @Override
-    protected final void resetAll() {
-        mIv = null;
-        mIvHasBeenUsed = false;
-        super.resetAll();
-    }
-
-    @Override
-    protected final void resetWhilePreservingInitState() {
-        super.resetWhilePreservingInitState();
-    }
-
-    @Override
-    protected final void initKey(int opmode, Key key) throws InvalidKeyException {
-        if (!(key instanceof AndroidKeyStoreSecretKey)) {
-            throw new InvalidKeyException(
-                    "Unsupported key: " + ((key != null) ? key.getClass().getName() : "null"));
-        }
-        if (!KeyProperties.KEY_ALGORITHM_AES.equalsIgnoreCase(key.getAlgorithm())) {
-            throw new InvalidKeyException(
-                    "Unsupported key algorithm: " + key.getAlgorithm() + ". Only " +
-                    KeyProperties.KEY_ALGORITHM_AES + " supported");
-        }
-        setKey((AndroidKeyStoreSecretKey) key);
-    }
-
-    @Override
-    protected final void initAlgorithmSpecificParameters() throws InvalidKeyException {
-        if (!mIvRequired) {
-            return;
-        }
-
-        // IV is used
-        if (!isEncrypting()) {
-            throw new InvalidKeyException("IV required when decrypting"
-                    + ". Use IvParameterSpec or AlgorithmParameters to provide it.");
-        }
-    }
-
-    @Override
-    protected final void initAlgorithmSpecificParameters(AlgorithmParameterSpec params)
-            throws InvalidAlgorithmParameterException {
-        if (!mIvRequired) {
-            if (params != null) {
-                throw new InvalidAlgorithmParameterException("Unsupported parameters: " + params);
-            }
-            return;
-        }
-
-        // IV is used
-        if (params == null) {
-            if (!isEncrypting()) {
-                // IV must be provided by the caller
-                throw new InvalidAlgorithmParameterException(
-                        "IvParameterSpec must be provided when decrypting");
-            }
-            return;
-        }
-        if (!(params instanceof IvParameterSpec)) {
-            throw new InvalidAlgorithmParameterException("Only IvParameterSpec supported");
-        }
-        mIv = ((IvParameterSpec) params).getIV();
-        if (mIv == null) {
-            throw new InvalidAlgorithmParameterException("Null IV in IvParameterSpec");
-        }
-    }
-
-    @Override
-    protected final void initAlgorithmSpecificParameters(AlgorithmParameters params)
-            throws InvalidAlgorithmParameterException {
-        if (!mIvRequired) {
-            if (params != null) {
-                throw new InvalidAlgorithmParameterException("Unsupported parameters: " + params);
-            }
-            return;
-        }
-
-        // IV is used
-        if (params == null) {
-            if (!isEncrypting()) {
-                // IV must be provided by the caller
-                throw new InvalidAlgorithmParameterException("IV required when decrypting"
-                        + ". Use IvParameterSpec or AlgorithmParameters to provide it.");
-            }
-            return;
-        }
-
-        if (!"AES".equalsIgnoreCase(params.getAlgorithm())) {
-            throw new InvalidAlgorithmParameterException(
-                    "Unsupported AlgorithmParameters algorithm: " + params.getAlgorithm()
-                    + ". Supported: AES");
-        }
-
-        IvParameterSpec ivSpec;
-        try {
-            ivSpec = params.getParameterSpec(IvParameterSpec.class);
-        } catch (InvalidParameterSpecException e) {
-            if (!isEncrypting()) {
-                // IV must be provided by the caller
-                throw new InvalidAlgorithmParameterException("IV required when decrypting"
-                        + ", but not found in parameters: " + params, e);
-            }
-            mIv = null;
-            return;
-        }
-        mIv = ivSpec.getIV();
-        if (mIv == null) {
-            throw new InvalidAlgorithmParameterException("Null IV in AlgorithmParameters");
-        }
-    }
-
-    @Override
-    protected final int getAdditionalEntropyAmountForBegin() {
-        if ((mIvRequired) && (mIv == null) && (isEncrypting())) {
-            // IV will need to be generated
-            return BLOCK_SIZE_BYTES;
-        }
-
-        return 0;
-    }
-
-    @Override
-    protected final int getAdditionalEntropyAmountForFinish() {
-        return 0;
-    }
-
-    @Override
-    protected final void addAlgorithmSpecificParametersToBegin(
-            @NonNull KeymasterArguments keymasterArgs) {
-        if ((isEncrypting()) && (mIvRequired) && (mIvHasBeenUsed)) {
-            // IV is being reused for encryption: this violates security best practices.
-            throw new IllegalStateException(
-                    "IV has already been used. Reusing IV in encryption mode violates security best"
-                    + " practices.");
-        }
-
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_ALGORITHM, KeymasterDefs.KM_ALGORITHM_AES);
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_BLOCK_MODE, mKeymasterBlockMode);
-        keymasterArgs.addEnum(KeymasterDefs.KM_TAG_PADDING, mKeymasterPadding);
-        if ((mIvRequired) && (mIv != null)) {
-            keymasterArgs.addBytes(KeymasterDefs.KM_TAG_NONCE, mIv);
-        }
-    }
-
-    @Override
-    protected final void loadAlgorithmSpecificParametersFromBeginResult(
-            @NonNull KeymasterArguments keymasterArgs) {
-        mIvHasBeenUsed = true;
-
-        // NOTE: Keymaster doesn't always return an IV, even if it's used.
-        byte[] returnedIv = keymasterArgs.getBytes(KeymasterDefs.KM_TAG_NONCE, null);
-        if ((returnedIv != null) && (returnedIv.length == 0)) {
-            returnedIv = null;
-        }
-
-        if (mIvRequired) {
-            if (mIv == null) {
-                mIv = returnedIv;
-            } else if ((returnedIv != null) && (!Arrays.equals(returnedIv, mIv))) {
-                throw new ProviderException("IV in use differs from provided IV");
-            }
-        } else {
-            if (returnedIv != null) {
-                throw new ProviderException(
-                        "IV in use despite IV not being used by this transformation");
-            }
-        }
-    }
-
-    @Override
-    protected final int engineGetBlockSize() {
-        return BLOCK_SIZE_BYTES;
-    }
-
-    @Override
-    protected final int engineGetOutputSize(int inputLen) {
-        return inputLen + 3 * BLOCK_SIZE_BYTES;
-    }
-
-    @Override
-    protected final byte[] engineGetIV() {
-        return ArrayUtils.cloneIfNotEmpty(mIv);
-    }
-
-    @Nullable
-    @Override
-    protected final AlgorithmParameters engineGetParameters() {
-        if (!mIvRequired) {
-            return null;
-        }
-        if ((mIv != null) && (mIv.length > 0)) {
-            try {
-                AlgorithmParameters params = AlgorithmParameters.getInstance("AES");
-                params.init(new IvParameterSpec(mIv));
-                return params;
-            } catch (NoSuchAlgorithmException e) {
-                throw new ProviderException(
-                        "Failed to obtain AES AlgorithmParameters", e);
-            } catch (InvalidParameterSpecException e) {
-                throw new ProviderException(
-                        "Failed to initialize AES AlgorithmParameters with an IV",
-                        e);
-            }
-        }
-        return null;
-    }
-}
diff --git a/keystore/java/android/security/keystore/AttestationUtils.java b/keystore/java/android/security/keystore/AttestationUtils.java
index 1eb8541..be865a0 100644
--- a/keystore/java/android/security/keystore/AttestationUtils.java
+++ b/keystore/java/android/security/keystore/AttestationUtils.java
@@ -36,9 +36,11 @@
 import java.security.KeyPairGenerator;
 import java.security.KeyStore;
 import java.security.SecureRandom;
+import java.security.cert.Certificate;
 import java.security.cert.CertificateFactory;
 import java.security.cert.X509Certificate;
 import java.security.spec.ECGenParameterSpec;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Random;
 import java.util.Set;
@@ -281,8 +283,9 @@
             KeyStore keyStore = KeyStore.getInstance("AndroidKeyStore");
             keyStore.load(null);
 
+            Certificate[] certs = keyStore.getCertificateChain(keystoreAlias);
             X509Certificate[] certificateChain =
-                    (X509Certificate[]) keyStore.getCertificateChain(keystoreAlias);
+                Arrays.copyOf(certs, certs.length, X509Certificate[].class);
 
             keyStore.deleteEntry(keystoreAlias);
 
diff --git a/keystore/java/android/security/keystore/KeyGenParameterSpec.java b/keystore/java/android/security/keystore/KeyGenParameterSpec.java
index 9ca551b..a6aa4f2 100644
--- a/keystore/java/android/security/keystore/KeyGenParameterSpec.java
+++ b/keystore/java/android/security/keystore/KeyGenParameterSpec.java
@@ -353,7 +353,7 @@
             boolean userPresenceRequired,
             byte[] attestationChallenge,
             boolean devicePropertiesAttestationIncluded,
-            int[] attestationIds,
+            @NonNull int[] attestationIds,
             boolean uniqueIdIncluded,
             boolean userAuthenticationValidWhileOnBody,
             boolean invalidatedByBiometricEnrollment,
@@ -446,13 +446,6 @@
     @UnsupportedAppUsage
     @Deprecated
     public int getUid() {
-        if (!AndroidKeyStoreProvider.isKeystore2Enabled()) {
-            // If Keystore2 has not been enabled we have to behave as if mNamespace is actually
-            // a UID, because we are still being used with the old Keystore SPI.
-            // TODO This if statement and body can be removed when the Keystore 2 migration is
-            //      complete. b/171563717
-            return mNamespace;
-        }
         try {
             return KeyProperties.namespaceToLegacyUid(mNamespace);
         } catch (IllegalArgumentException e) {
@@ -786,9 +779,8 @@
      * @return integer array representing the requested device IDs to attest.
      */
     @SystemApi
-    @Nullable
-    public int[] getAttestationIds() {
-        return Utils.cloneIfNotNull(mAttestationIds);
+    public @NonNull int[] getAttestationIds() {
+        return mAttestationIds.clone();
     }
 
     /**
@@ -918,7 +910,7 @@
         private boolean mUserPresenceRequired = false;
         private byte[] mAttestationChallenge = null;
         private boolean mDevicePropertiesAttestationIncluded = false;
-        private int[] mAttestationIds = null;
+        private int[] mAttestationIds = new int[0];
         private boolean mUniqueIdIncluded = false;
         private boolean mUserAuthenticationValidWhileOnBody;
         private boolean mInvalidatedByBiometricEnrollment = true;
@@ -1021,14 +1013,6 @@
         @NonNull
         @Deprecated
         public Builder setUid(int uid) {
-            if (!AndroidKeyStoreProvider.isKeystore2Enabled()) {
-                // If Keystore2 has not been enabled we have to behave as if mNamespace is actually
-                // a UID, because we are still being used with the old Keystore SPI.
-                // TODO This if statement and body can be removed when the Keystore 2 migration is
-                //      complete. b/171563717
-                mNamespace = uid;
-                return this;
-            }
             mNamespace = KeyProperties.legacyUidToNamespace(uid);
             return this;
         }
@@ -1666,9 +1650,10 @@
          * Set whether this key is critical to the device encryption flow
          *
          * This is a special flag only available to system servers to indicate the current key
-         * is part of the device encryption flow.
+         * is part of the device encryption flow. Setting this flag causes the key to not
+         * be cryptographically bound to the LSKF even if the key is otherwise authentication
+         * bound.
          *
-         * @see android.security.KeyStore#FLAG_CRITICAL_TO_DEVICE_ENCRYPTION
          * @hide
          */
         public Builder setCriticalToDeviceEncryption(boolean critical) {
diff --git a/keystore/java/android/security/keystore/KeyProtection.java b/keystore/java/android/security/keystore/KeyProtection.java
index 673491e..88d1a5b 100644
--- a/keystore/java/android/security/keystore/KeyProtection.java
+++ b/keystore/java/android/security/keystore/KeyProtection.java
@@ -24,6 +24,7 @@
 import android.hardware.biometrics.BiometricManager;
 import android.hardware.biometrics.BiometricPrompt;
 import android.security.GateKeeper;
+import android.security.keystore2.KeymasterUtils;
 
 import java.security.Key;
 import java.security.KeyStore.ProtectionParameter;
diff --git a/keystore/java/android/security/keystore/KeyStoreCryptoOperationChunkedStreamer.java b/keystore/java/android/security/keystore/KeyStoreCryptoOperationChunkedStreamer.java
deleted file mode 100644
index 2c0f40d..0000000
--- a/keystore/java/android/security/keystore/KeyStoreCryptoOperationChunkedStreamer.java
+++ /dev/null
@@ -1,225 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.os.IBinder;
-import android.security.KeyStore;
-import android.security.KeyStoreException;
-import android.security.keymaster.KeymasterDefs;
-import android.security.keymaster.OperationResult;
-
-import libcore.util.EmptyArray;
-
-/**
- * Helper for streaming a crypto operation's input and output via {@link KeyStore} service's
- * {@code update} and {@code finish} operations.
- *
- * <p>The helper abstracts away issues that need to be solved in most code that uses KeyStore's
- * update and finish operations. Firstly, KeyStore's update operation can consume only a limited
- * amount of data in one go because the operations are marshalled via Binder. Secondly, the update
- * operation may consume less data than provided, in which case the caller has to buffer the
- * remainder for next time. Thirdly, when the input is smaller than a threshold, skipping update
- * and passing input data directly to final improves performance. This threshold is configurable;
- * using a threshold <= 1 causes the helper act eagerly, which may be required for some types of
- * operations (e.g. ciphers).
- *
- * <p>The helper exposes {@link #update(byte[], int, int) update} and
- * {@link #doFinal(byte[], int, int, byte[], byte[]) doFinal} operations which can be used to
- * conveniently implement various JCA crypto primitives.
- *
- * <p>Bidirectional chunked streaming of data via a KeyStore crypto operation is abstracted away as
- * a {@link Stream} to avoid having this class deal with operation tokens and occasional additional
- * parameters to {@code update} and {@code final} operations.
- *
- * @hide
- */
-class KeyStoreCryptoOperationChunkedStreamer implements KeyStoreCryptoOperationStreamer {
-
-    /**
-     * Bidirectional chunked data stream over a KeyStore crypto operation.
-     */
-    interface Stream {
-        /**
-         * Returns the result of the KeyStore {@code update} operation or null if keystore couldn't
-         * be reached.
-         */
-        OperationResult update(byte[] input);
-
-        /**
-         * Returns the result of the KeyStore {@code finish} operation or null if keystore couldn't
-         * be reached.
-         */
-        OperationResult finish(byte[] input, byte[] siganture, byte[] additionalEntropy);
-    }
-
-    // Binder buffer is about 1MB, but it's shared between all active transactions of the process.
-    // Thus, it's safer to use a much smaller upper bound.
-    private static final int DEFAULT_CHUNK_SIZE_MAX = 64 * 1024;
-    // The chunk buffer will be sent to update until its size under this threshold.
-    // This threshold should be <= the max input allowed for finish.
-    // Setting this threshold <= 1 will effectivley disable buffering between updates.
-    private static final int DEFAULT_CHUNK_SIZE_THRESHOLD = 2 * 1024;
-
-    private final Stream mKeyStoreStream;
-    private final int mChunkSizeMax;
-    private final int mChunkSizeThreshold;
-    private final byte[] mChunk;
-    private int mChunkLength = 0;
-    private long mConsumedInputSizeBytes;
-    private long mProducedOutputSizeBytes;
-
-    KeyStoreCryptoOperationChunkedStreamer(Stream operation) {
-        this(operation, DEFAULT_CHUNK_SIZE_THRESHOLD, DEFAULT_CHUNK_SIZE_MAX);
-    }
-
-    KeyStoreCryptoOperationChunkedStreamer(Stream operation, int chunkSizeThreshold) {
-        this(operation, chunkSizeThreshold, DEFAULT_CHUNK_SIZE_MAX);
-    }
-
-    KeyStoreCryptoOperationChunkedStreamer(Stream operation, int chunkSizeThreshold,
-            int chunkSizeMax) {
-        mKeyStoreStream = operation;
-        mChunkSizeMax = chunkSizeMax;
-        if (chunkSizeThreshold <= 0) {
-            mChunkSizeThreshold = 1;
-        } else if (chunkSizeThreshold > chunkSizeMax) {
-            mChunkSizeThreshold = chunkSizeMax;
-        } else {
-            mChunkSizeThreshold = chunkSizeThreshold;
-        }
-        mChunk = new byte[mChunkSizeMax];
-    }
-
-    public byte[] update(byte[] input, int inputOffset, int inputLength) throws KeyStoreException {
-        if (inputLength == 0 || input == null) {
-            // No input provided
-            return EmptyArray.BYTE;
-        }
-        if (inputLength < 0 || inputOffset < 0 || (inputOffset + inputLength) > input.length) {
-            throw new KeyStoreException(KeymasterDefs.KM_ERROR_UNKNOWN_ERROR,
-                "Input offset and length out of bounds of input array");
-        }
-
-        byte[] output = EmptyArray.BYTE;
-
-        while (inputLength > 0 || mChunkLength >= mChunkSizeThreshold) {
-            int inputConsumed = ArrayUtils.copy(input, inputOffset, mChunk, mChunkLength,
-                    inputLength);
-            inputLength -= inputConsumed;
-            inputOffset += inputConsumed;
-            mChunkLength += inputConsumed;
-            mConsumedInputSizeBytes += inputConsumed;
-
-            if (mChunkLength > mChunkSizeMax) {
-                throw new KeyStoreException(KeymasterDefs.KM_ERROR_INVALID_INPUT_LENGTH,
-                    "Chunk size exceeded max chunk size. Max: " + mChunkSizeMax
-                    + " Actual: " + mChunkLength);
-            }
-
-            if (mChunkLength >= mChunkSizeThreshold) {
-                OperationResult opResult = mKeyStoreStream.update(
-                        ArrayUtils.subarray(mChunk, 0, mChunkLength));
-
-                if (opResult == null) {
-                    throw new KeyStoreConnectException();
-                } else if (opResult.resultCode != KeyStore.NO_ERROR) {
-                    throw KeyStore.getKeyStoreException(opResult.resultCode);
-                }
-                if (opResult.inputConsumed <= 0) {
-                    throw new KeyStoreException(KeymasterDefs.KM_ERROR_INVALID_INPUT_LENGTH,
-                        "Keystore consumed 0 of " + mChunkLength + " bytes provided.");
-                } else if (opResult.inputConsumed > mChunkLength) {
-                    throw new KeyStoreException(KeymasterDefs.KM_ERROR_UNKNOWN_ERROR,
-                        "Keystore consumed more input than provided. Provided: "
-                            + mChunkLength + ", consumed: " + opResult.inputConsumed);
-                }
-                mChunkLength -= opResult.inputConsumed;
-
-                if (mChunkLength > 0) {
-                    // Partialy consumed, shift chunk contents
-                    ArrayUtils.copy(mChunk, opResult.inputConsumed, mChunk, 0, mChunkLength);
-                }
-
-                if ((opResult.output != null) && (opResult.output.length > 0)) {
-                    // Output was produced
-                    mProducedOutputSizeBytes += opResult.output.length;
-                    output = ArrayUtils.concat(output, opResult.output);
-                }
-            }
-        }
-        return output;
-    }
-
-    public byte[] doFinal(byte[] input, int inputOffset, int inputLength,
-            byte[] signature, byte[] additionalEntropy) throws KeyStoreException {
-        byte[] output = update(input, inputOffset, inputLength);
-        byte[] finalChunk = ArrayUtils.subarray(mChunk, 0, mChunkLength);
-        OperationResult opResult = mKeyStoreStream.finish(finalChunk, signature, additionalEntropy);
-
-        if (opResult == null) {
-            throw new KeyStoreConnectException();
-        } else if (opResult.resultCode != KeyStore.NO_ERROR) {
-            throw KeyStore.getKeyStoreException(opResult.resultCode);
-        }
-        // If no error, assume all input consumed
-        mConsumedInputSizeBytes += finalChunk.length;
-
-        if ((opResult.output != null) && (opResult.output.length > 0)) {
-            mProducedOutputSizeBytes += opResult.output.length;
-            output = ArrayUtils.concat(output, opResult.output);
-        }
-
-        return output;
-    }
-
-    @Override
-    public long getConsumedInputSizeBytes() {
-        return mConsumedInputSizeBytes;
-    }
-
-    @Override
-    public long getProducedOutputSizeBytes() {
-        return mProducedOutputSizeBytes;
-    }
-
-    /**
-     * Main data stream via a KeyStore streaming operation.
-     *
-     * <p>For example, for an encryption operation, this is the stream through which plaintext is
-     * provided and ciphertext is obtained.
-     */
-    public static class MainDataStream implements Stream {
-
-        private final KeyStore mKeyStore;
-        private final IBinder mOperationToken;
-
-        public MainDataStream(KeyStore keyStore, IBinder operationToken) {
-            mKeyStore = keyStore;
-            mOperationToken = operationToken;
-        }
-
-        @Override
-        public OperationResult update(byte[] input) {
-            return mKeyStore.update(mOperationToken, null, input);
-        }
-
-        @Override
-        public OperationResult finish(byte[] input, byte[] signature, byte[] additionalEntropy) {
-            return mKeyStore.finish(mOperationToken, null, input, signature, additionalEntropy);
-        }
-    }
-}
diff --git a/keystore/java/android/security/keystore/KeyStoreCryptoOperationStreamer.java b/keystore/java/android/security/keystore/KeyStoreCryptoOperationStreamer.java
deleted file mode 100644
index 062c2d4..0000000
--- a/keystore/java/android/security/keystore/KeyStoreCryptoOperationStreamer.java
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.security.KeyStore;
-import android.security.KeyStoreException;
-
-/**
- * Helper for streaming a crypto operation's input and output via {@link KeyStore} service's
- * {@code update} and {@code finish} operations.
- *
- * <p>The helper abstracts away to issues that need to be solved in most code that uses KeyStore's
- * update and finish operations. Firstly, KeyStore's update operation can consume only a limited
- * amount of data in one go because the operations are marshalled via Binder. Secondly, the update
- * operation may consume less data than provided, in which case the caller has to buffer the
- * remainder for next time. The helper exposes {@link #update(byte[], int, int) update} and
- * {@link #doFinal(byte[], int, int, byte[], byte[]) doFinal} operations which can be used to
- * conveniently implement various JCA crypto primitives.
- *
- * @hide
- */
-interface KeyStoreCryptoOperationStreamer {
-    byte[] update(byte[] input, int inputOffset, int inputLength) throws KeyStoreException;
-    byte[] doFinal(byte[] input, int inputOffset, int inputLength, byte[] signature,
-            byte[] additionalEntropy) throws KeyStoreException;
-    long getConsumedInputSizeBytes();
-    long getProducedOutputSizeBytes();
-}
diff --git a/keystore/java/android/security/keystore/KeyStoreCryptoOperationUtils.java b/keystore/java/android/security/keystore/KeyStoreCryptoOperationUtils.java
deleted file mode 100644
index c82b6e6b..0000000
--- a/keystore/java/android/security/keystore/KeyStoreCryptoOperationUtils.java
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.security.KeyStore;
-import android.security.keymaster.KeymasterDefs;
-
-import libcore.util.EmptyArray;
-
-import java.security.GeneralSecurityException;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.SecureRandom;
-
-/**
- * Assorted utility methods for implementing crypto operations on top of KeyStore.
- *
- * @hide
- */
-abstract class KeyStoreCryptoOperationUtils {
-
-    private static volatile SecureRandom sRng;
-
-    private KeyStoreCryptoOperationUtils() {}
-
-    /**
-     * Returns the {@link InvalidKeyException} to be thrown by the {@code init} method of
-     * the crypto operation in response to {@code KeyStore.begin} operation or {@code null} if
-     * the {@code init} method should succeed.
-     */
-    static InvalidKeyException getInvalidKeyExceptionForInit(
-            KeyStore keyStore, AndroidKeyStoreKey key, int beginOpResultCode) {
-        if (beginOpResultCode == KeyStore.NO_ERROR) {
-            return null;
-        }
-
-        // An error occurred. However, some errors should not lead to init throwing an exception.
-        // See below.
-        InvalidKeyException e =
-                keyStore.getInvalidKeyException(key.getAlias(), key.getUid(), beginOpResultCode);
-        switch (beginOpResultCode) {
-            case KeyStore.OP_AUTH_NEEDED:
-                // Operation needs to be authorized by authenticating the user. Don't throw an
-                // exception is such authentication is possible for this key
-                // (UserNotAuthenticatedException). An example of when it's not possible is where
-                // the key is permanently invalidated (KeyPermanentlyInvalidatedException).
-                if (e instanceof UserNotAuthenticatedException) {
-                    return null;
-                }
-                break;
-        }
-        return e;
-    }
-
-    /**
-     * Returns the exception to be thrown by the {@code Cipher.init} method of the crypto operation
-     * in response to {@code KeyStore.begin} operation or {@code null} if the {@code init} method
-     * should succeed.
-     */
-    public static GeneralSecurityException getExceptionForCipherInit(
-            KeyStore keyStore, AndroidKeyStoreKey key, int beginOpResultCode) {
-        if (beginOpResultCode == KeyStore.NO_ERROR) {
-            return null;
-        }
-
-        // Cipher-specific cases
-        switch (beginOpResultCode) {
-            case KeymasterDefs.KM_ERROR_INVALID_NONCE:
-                return new InvalidAlgorithmParameterException("Invalid IV");
-            case KeymasterDefs.KM_ERROR_CALLER_NONCE_PROHIBITED:
-                return new InvalidAlgorithmParameterException("Caller-provided IV not permitted");
-        }
-
-        // General cases
-        return getInvalidKeyExceptionForInit(keyStore, key, beginOpResultCode);
-    }
-
-    /**
-     * Returns the requested number of random bytes to mix into keystore/keymaster RNG.
-     *
-     * @param rng RNG from which to obtain the random bytes or {@code null} for the platform-default
-     *        RNG.
-     */
-    static byte[] getRandomBytesToMixIntoKeystoreRng(SecureRandom rng, int sizeBytes) {
-        if (sizeBytes <= 0) {
-            return EmptyArray.BYTE;
-        }
-        if (rng == null) {
-            rng = getRng();
-        }
-        byte[] result = new byte[sizeBytes];
-        rng.nextBytes(result);
-        return result;
-    }
-
-    private static SecureRandom getRng() {
-        // IMPLEMENTATION NOTE: It's OK to share a SecureRandom instance because SecureRandom is
-        // required to be thread-safe.
-        if (sRng == null) {
-            sRng = new SecureRandom();
-        }
-        return sRng;
-    }
-}
diff --git a/keystore/java/android/security/keystore/KeymasterUtils.java b/keystore/java/android/security/keystore/KeymasterUtils.java
deleted file mode 100644
index 670ef5e..0000000
--- a/keystore/java/android/security/keystore/KeymasterUtils.java
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.security.keystore;
-
-import android.hardware.biometrics.BiometricManager;
-import android.security.GateKeeper;
-import android.security.KeyStore;
-import android.security.keymaster.KeymasterArguments;
-import android.security.keymaster.KeymasterDefs;
-
-import java.security.ProviderException;
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * @hide
- */
-public abstract class KeymasterUtils {
-
-    private KeymasterUtils() {}
-
-    public static int getDigestOutputSizeBits(int keymasterDigest) {
-        switch (keymasterDigest) {
-            case KeymasterDefs.KM_DIGEST_NONE:
-                return -1;
-            case KeymasterDefs.KM_DIGEST_MD5:
-                return 128;
-            case KeymasterDefs.KM_DIGEST_SHA1:
-                return 160;
-            case KeymasterDefs.KM_DIGEST_SHA_2_224:
-                return 224;
-            case KeymasterDefs.KM_DIGEST_SHA_2_256:
-                return 256;
-            case KeymasterDefs.KM_DIGEST_SHA_2_384:
-                return 384;
-            case KeymasterDefs.KM_DIGEST_SHA_2_512:
-                return 512;
-            default:
-                throw new IllegalArgumentException("Unknown digest: " + keymasterDigest);
-        }
-    }
-
-    public static boolean isKeymasterBlockModeIndCpaCompatibleWithSymmetricCrypto(
-            int keymasterBlockMode) {
-        switch (keymasterBlockMode) {
-            case KeymasterDefs.KM_MODE_ECB:
-                return false;
-            case KeymasterDefs.KM_MODE_CBC:
-            case KeymasterDefs.KM_MODE_CTR:
-            case KeymasterDefs.KM_MODE_GCM:
-                return true;
-            default:
-                throw new IllegalArgumentException("Unsupported block mode: " + keymasterBlockMode);
-        }
-    }
-
-    public static boolean isKeymasterPaddingSchemeIndCpaCompatibleWithAsymmetricCrypto(
-            int keymasterPadding) {
-        switch (keymasterPadding) {
-            case KeymasterDefs.KM_PAD_NONE:
-                return false;
-            case KeymasterDefs.KM_PAD_RSA_OAEP:
-            case KeymasterDefs.KM_PAD_RSA_PKCS1_1_5_ENCRYPT:
-                return true;
-            default:
-                throw new IllegalArgumentException(
-                        "Unsupported asymmetric encryption padding scheme: " + keymasterPadding);
-        }
-    }
-
-    private static void addSids(KeymasterArguments args, UserAuthArgs spec) {
-        // If both biometric and credential are accepted, then just use the root sid from gatekeeper
-        if (spec.getUserAuthenticationType() == (KeyProperties.AUTH_BIOMETRIC_STRONG
-                                                 | KeyProperties.AUTH_DEVICE_CREDENTIAL)) {
-            if (spec.getBoundToSpecificSecureUserId() != GateKeeper.INVALID_SECURE_USER_ID) {
-                args.addUnsignedLong(KeymasterDefs.KM_TAG_USER_SECURE_ID,
-                        KeymasterArguments.toUint64(spec.getBoundToSpecificSecureUserId()));
-            } else {
-                // The key is authorized for use for the specified amount of time after the user has
-                // authenticated. Whatever unlocks the secure lock screen should authorize this key.
-                args.addUnsignedLong(KeymasterDefs.KM_TAG_USER_SECURE_ID,
-                        KeymasterArguments.toUint64(getRootSid()));
-            }
-        } else {
-            List<Long> sids = new ArrayList<>();
-            if ((spec.getUserAuthenticationType() & KeyProperties.AUTH_BIOMETRIC_STRONG) != 0) {
-                final BiometricManager bm = KeyStore.getApplicationContext()
-                        .getSystemService(BiometricManager.class);
-
-                // TODO: Restore permission check in getAuthenticatorIds once the ID is no longer
-                // needed here.
-
-                final long[] biometricSids = bm.getAuthenticatorIds();
-
-                if (biometricSids.length == 0) {
-                    throw new IllegalStateException(
-                            "At least one biometric must be enrolled to create keys requiring user"
-                            + " authentication for every use");
-                }
-
-                if (spec.getBoundToSpecificSecureUserId() != GateKeeper.INVALID_SECURE_USER_ID) {
-                    sids.add(spec.getBoundToSpecificSecureUserId());
-                } else if (spec.isInvalidatedByBiometricEnrollment()) {
-                    // The biometric-only SIDs will change on biometric enrollment or removal of all
-                    // enrolled templates, invalidating the key.
-                    for (long sid : biometricSids) {
-                        sids.add(sid);
-                    }
-                } else {
-                    // The root SID will *not* change on fingerprint enrollment, or removal of all
-                    // enrolled fingerprints, allowing the key to remain valid.
-                    sids.add(getRootSid());
-                }
-            } else if ((spec.getUserAuthenticationType() & KeyProperties.AUTH_DEVICE_CREDENTIAL)
-                            != 0) {
-                sids.add(getRootSid());
-            } else {
-                throw new IllegalStateException("Invalid or no authentication type specified.");
-            }
-
-            for (int i = 0; i < sids.size(); i++) {
-                args.addUnsignedLong(KeymasterDefs.KM_TAG_USER_SECURE_ID,
-                        KeymasterArguments.toUint64(sids.get(i)));
-            }
-        }
-    }
-
-    /**
-     * Adds keymaster arguments to express the key's authorization policy supported by user
-     * authentication.
-     *
-     * @param args The arguments sent to keymaster that need to be populated from the spec
-     * @param spec The user authentication relevant portions of the spec passed in from the caller.
-     *        This spec will be translated into the relevant keymaster tags to be loaded into args.
-     * @throws IllegalStateException if user authentication is required but the system is in a wrong
-     *         state (e.g., secure lock screen not set up) for generating or importing keys that
-     *         require user authentication.
-     */
-    public static void addUserAuthArgs(KeymasterArguments args, UserAuthArgs spec) {
-
-        if (spec.isUserConfirmationRequired()) {
-            args.addBoolean(KeymasterDefs.KM_TAG_TRUSTED_CONFIRMATION_REQUIRED);
-        }
-
-        if (spec.isUserPresenceRequired()) {
-            args.addBoolean(KeymasterDefs.KM_TAG_TRUSTED_USER_PRESENCE_REQUIRED);
-        }
-
-        if (spec.isUnlockedDeviceRequired()) {
-            args.addBoolean(KeymasterDefs.KM_TAG_UNLOCKED_DEVICE_REQUIRED);
-        }
-
-        if (!spec.isUserAuthenticationRequired()) {
-            args.addBoolean(KeymasterDefs.KM_TAG_NO_AUTH_REQUIRED);
-            return;
-        }
-
-        if (spec.getUserAuthenticationValidityDurationSeconds() == 0) {
-            // Every use of this key needs to be authorized by the user.
-            addSids(args, spec);
-            args.addEnum(KeymasterDefs.KM_TAG_USER_AUTH_TYPE, spec.getUserAuthenticationType());
-
-            if (spec.isUserAuthenticationValidWhileOnBody()) {
-                throw new ProviderException("Key validity extension while device is on-body is not "
-                        + "supported for keys requiring fingerprint authentication");
-            }
-        } else {
-            addSids(args, spec);
-            args.addEnum(KeymasterDefs.KM_TAG_USER_AUTH_TYPE, spec.getUserAuthenticationType());
-            args.addUnsignedInt(KeymasterDefs.KM_TAG_AUTH_TIMEOUT,
-                    spec.getUserAuthenticationValidityDurationSeconds());
-            if (spec.isUserAuthenticationValidWhileOnBody()) {
-                args.addBoolean(KeymasterDefs.KM_TAG_ALLOW_WHILE_ON_BODY);
-            }
-        }
-    }
-
-    /**
-     * Adds {@code KM_TAG_MIN_MAC_LENGTH} tag, if necessary, to the keymaster arguments for
-     * generating or importing a key. This tag may only be needed for symmetric keys (e.g., HMAC,
-     * AES-GCM).
-     */
-    public static void addMinMacLengthAuthorizationIfNecessary(KeymasterArguments args,
-            int keymasterAlgorithm,
-            int[] keymasterBlockModes,
-            int[] keymasterDigests) {
-        switch (keymasterAlgorithm) {
-            case KeymasterDefs.KM_ALGORITHM_AES:
-                if (com.android.internal.util.ArrayUtils.contains(
-                        keymasterBlockModes, KeymasterDefs.KM_MODE_GCM)) {
-                    // AES GCM key needs the minimum length of AEAD tag specified.
-                    args.addUnsignedInt(KeymasterDefs.KM_TAG_MIN_MAC_LENGTH,
-                            AndroidKeyStoreAuthenticatedAESCipherSpi.GCM
-                                    .MIN_SUPPORTED_TAG_LENGTH_BITS);
-                }
-                break;
-            case KeymasterDefs.KM_ALGORITHM_HMAC:
-                // HMAC key needs the minimum length of MAC set to the output size of the associated
-                // digest. This is because we do not offer a way to generate shorter MACs and
-                // don't offer a way to verify MACs (other than by generating them).
-                if (keymasterDigests.length != 1) {
-                    throw new ProviderException(
-                            "Unsupported number of authorized digests for HMAC key: "
-                                    + keymasterDigests.length
-                                    + ". Exactly one digest must be authorized");
-                }
-                int keymasterDigest = keymasterDigests[0];
-                int digestOutputSizeBits = getDigestOutputSizeBits(keymasterDigest);
-                if (digestOutputSizeBits == -1) {
-                    throw new ProviderException(
-                            "HMAC key authorized for unsupported digest: "
-                                    + KeyProperties.Digest.fromKeymaster(keymasterDigest));
-                }
-                args.addUnsignedInt(KeymasterDefs.KM_TAG_MIN_MAC_LENGTH, digestOutputSizeBits);
-                break;
-        }
-    }
-
-    private static long getRootSid() {
-        long rootSid = GateKeeper.getSecureUserId();
-        if (rootSid == 0) {
-            throw new IllegalStateException("Secure lock screen must be enabled"
-                    + " to create keys requiring user authentication");
-        }
-        return rootSid;
-    }
-}
diff --git a/keystore/java/android/security/keystore/SecureKeyImportUnavailableException.java b/keystore/java/android/security/keystore/SecureKeyImportUnavailableException.java
index d1cc572..c1842b4 100644
--- a/keystore/java/android/security/keystore/SecureKeyImportUnavailableException.java
+++ b/keystore/java/android/security/keystore/SecureKeyImportUnavailableException.java
@@ -16,8 +16,8 @@
 
 package android.security.keystore;
 
-import android.security.KeyStore;
 import android.security.KeyStoreException;
+import android.security.keymaster.KeymasterDefs;
 
 import java.security.ProviderException;
 
@@ -31,7 +31,7 @@
     }
 
     public SecureKeyImportUnavailableException(String message) {
-        super(message, new KeyStoreException(KeyStore.HARDWARE_TYPE_UNAVAILABLE,
+        super(message, new KeyStoreException(KeymasterDefs.KM_ERROR_HARDWARE_TYPE_UNAVAILABLE,
                 "Secure Key Import not available"));
     }
 
diff --git a/keystore/java/android/security/keystore/StrongBoxUnavailableException.java b/keystore/java/android/security/keystore/StrongBoxUnavailableException.java
index 6c7e9a9..1f4e12e 100644
--- a/keystore/java/android/security/keystore/StrongBoxUnavailableException.java
+++ b/keystore/java/android/security/keystore/StrongBoxUnavailableException.java
@@ -16,8 +16,8 @@
 
 package android.security.keystore;
 
-import android.security.KeyStore;
 import android.security.KeyStoreException;
+import android.security.keymaster.KeymasterDefs;
 
 import java.security.ProviderException;
 
@@ -33,7 +33,8 @@
 
     public StrongBoxUnavailableException(String message) {
         super(message,
-                new KeyStoreException(KeyStore.HARDWARE_TYPE_UNAVAILABLE, "No StrongBox available")
+                new KeyStoreException(KeymasterDefs.KM_ERROR_HARDWARE_TYPE_UNAVAILABLE,
+                        "No StrongBox available")
         );
     }
 
diff --git a/keystore/java/android/security/keystore2/AndroidKeyStoreHmacSpi.java b/keystore/java/android/security/keystore2/AndroidKeyStoreHmacSpi.java
index 0f77749..268b15bf 100644
--- a/keystore/java/android/security/keystore2/AndroidKeyStoreHmacSpi.java
+++ b/keystore/java/android/security/keystore2/AndroidKeyStoreHmacSpi.java
@@ -21,7 +21,6 @@
 import android.security.KeyStoreOperation;
 import android.security.keymaster.KeymasterDefs;
 import android.security.keystore.KeyStoreCryptoOperation;
-import android.security.keystore.KeymasterUtils;
 
 import java.security.InvalidAlgorithmParameterException;
 import java.security.InvalidKeyException;
diff --git a/keystore/java/android/security/keystore2/AndroidKeyStoreKeyGeneratorSpi.java b/keystore/java/android/security/keystore2/AndroidKeyStoreKeyGeneratorSpi.java
index 1575bb4..f1681ec 100644
--- a/keystore/java/android/security/keystore2/AndroidKeyStoreKeyGeneratorSpi.java
+++ b/keystore/java/android/security/keystore2/AndroidKeyStoreKeyGeneratorSpi.java
@@ -20,12 +20,10 @@
 import android.hardware.security.keymint.SecurityLevel;
 import android.security.KeyStore2;
 import android.security.KeyStoreSecurityLevel;
-import android.security.keymaster.KeymasterArguments;
 import android.security.keymaster.KeymasterDefs;
 import android.security.keystore.ArrayUtils;
 import android.security.keystore.KeyGenParameterSpec;
 import android.security.keystore.KeyProperties;
-import android.security.keystore.KeymasterUtils;
 import android.security.keystore.StrongBoxUnavailableException;
 import android.system.keystore2.Domain;
 import android.system.keystore2.IKeystoreSecurityLevel;
@@ -259,7 +257,7 @@
                 // Check that user authentication related parameters are acceptable. This method
                 // will throw an IllegalStateException if there are issues (e.g., secure lock screen
                 // not set up).
-                KeymasterUtils.addUserAuthArgs(new KeymasterArguments(), spec);
+                KeyStore2ParameterUtils.addUserAuthArgs(new ArrayList<>(), spec);
             } catch (IllegalStateException | IllegalArgumentException e) {
                 throw new InvalidAlgorithmParameterException(e);
             }
diff --git a/keystore/java/android/security/keystore2/AndroidKeyStoreKeyPairGeneratorSpi.java b/keystore/java/android/security/keystore2/AndroidKeyStoreKeyPairGeneratorSpi.java
index 2d8901a..dc7f3dd 100644
--- a/keystore/java/android/security/keystore2/AndroidKeyStoreKeyPairGeneratorSpi.java
+++ b/keystore/java/android/security/keystore2/AndroidKeyStoreKeyPairGeneratorSpi.java
@@ -18,6 +18,7 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.app.ActivityThread;
 import android.content.Context;
 import android.hardware.security.keymint.KeyParameter;
 import android.hardware.security.keymint.KeyPurpose;
@@ -28,7 +29,6 @@
 import android.security.GenerateRkpKey;
 import android.security.GenerateRkpKeyException;
 import android.security.KeyPairGeneratorSpec;
-import android.security.KeyStore;
 import android.security.KeyStore2;
 import android.security.KeyStoreException;
 import android.security.KeyStoreSecurityLevel;
@@ -39,7 +39,6 @@
 import android.security.keystore.DeviceIdAttestationException;
 import android.security.keystore.KeyGenParameterSpec;
 import android.security.keystore.KeyProperties;
-import android.security.keystore.KeymasterUtils;
 import android.security.keystore.SecureKeyImportUnavailableException;
 import android.security.keystore.StrongBoxUnavailableException;
 import android.system.keystore2.Authorization;
@@ -270,7 +269,7 @@
                 // Check that user authentication related parameters are acceptable. This method
                 // will throw an IllegalStateException if there are issues (e.g., secure lock screen
                 // not set up).
-                KeymasterUtils.addUserAuthArgs(new KeymasterArguments(), mSpec);
+                KeyStore2ParameterUtils.addUserAuthArgs(new ArrayList<>(), mSpec);
             } catch (IllegalArgumentException | IllegalStateException e) {
                 throw new InvalidAlgorithmParameterException(e);
             }
@@ -572,7 +571,8 @@
             AndroidKeyStorePublicKey publicKey =
                     AndroidKeyStoreProvider.makeAndroidKeyStorePublicKeyFromKeyEntryResponse(
                             descriptor, metadata, iSecurityLevel, mKeymasterAlgorithm);
-            GenerateRkpKey keyGen = new GenerateRkpKey(KeyStore.getApplicationContext());
+            GenerateRkpKey keyGen = new GenerateRkpKey(ActivityThread
+                    .currentApplication());
             try {
                 if (mSpec.getAttestationChallenge() != null) {
                     keyGen.notifyKeyGenerated(securityLevel);
@@ -589,7 +589,8 @@
                 case KeymasterDefs.KM_ERROR_HARDWARE_TYPE_UNAVAILABLE:
                     throw new StrongBoxUnavailableException("Failed to generated key pair.", e);
                 case ResponseCode.OUT_OF_KEYS:
-                    GenerateRkpKey keyGen = new GenerateRkpKey(KeyStore.getApplicationContext());
+                    GenerateRkpKey keyGen = new GenerateRkpKey(ActivityThread
+                            .currentApplication());
                     try {
                         keyGen.notifyEmpty(securityLevel);
                     } catch (RemoteException f) {
@@ -654,7 +655,7 @@
             }
 
             int[] idTypes = mSpec.getAttestationIds();
-            if (idTypes == null) {
+            if (idTypes.length == 0) {
                 return;
             }
             final Set<Integer> idTypesSet = new ArraySet<>(idTypes.length);
@@ -665,8 +666,8 @@
             if (idTypesSet.contains(AttestationUtils.ID_TYPE_IMEI)
                     || idTypesSet.contains(AttestationUtils.ID_TYPE_MEID)) {
                 telephonyService =
-                    (TelephonyManager) KeyStore.getApplicationContext().getSystemService(
-                        Context.TELEPHONY_SERVICE);
+                    (TelephonyManager) android.app.AppGlobals.getInitialApplication()
+                            .getSystemService(Context.TELEPHONY_SERVICE);
                 if (telephonyService == null) {
                     throw new DeviceIdAttestationException("Unable to access telephony service");
                 }
diff --git a/keystore/java/android/security/keystore2/AndroidKeyStoreProvider.java b/keystore/java/android/security/keystore2/AndroidKeyStoreProvider.java
index ba6d22f..89d2b74 100644
--- a/keystore/java/android/security/keystore2/AndroidKeyStoreProvider.java
+++ b/keystore/java/android/security/keystore2/AndroidKeyStoreProvider.java
@@ -110,23 +110,6 @@
         putSecretKeyFactoryImpl("HmacSHA512");
     }
 
-    private static boolean sInstalled = false;
-
-    /**
-     * This function indicates whether or not this provider was installed. This is manly used
-     * as indicator for
-     * {@link android.security.keystore.AndroidKeyStoreProvider#getKeyStoreForUid(int)}
-     * to whether or not to retrieve the Keystore provider by "AndroidKeyStoreLegacy".
-     * This function can be removed once the transition to Keystore 2.0 is complete.
-     * b/171305684
-     *
-     * @return true if this provider was installed.
-     * @hide
-     */
-    public static boolean isInstalled() {
-        return sInstalled;
-    }
-
     /**
      * Installs a new instance of this provider (and the
      * {@link AndroidKeyStoreBCWorkaroundProvider}).
@@ -142,7 +125,6 @@
                 break;
             }
         }
-        sInstalled = true;
 
         Security.addProvider(new AndroidKeyStoreProvider());
         Provider workaroundProvider = new AndroidKeyStoreBCWorkaroundProvider();
diff --git a/keystore/java/android/security/keystore2/AndroidKeyStoreRSACipherSpi.java b/keystore/java/android/security/keystore2/AndroidKeyStoreRSACipherSpi.java
index 6ff9432..5848247 100644
--- a/keystore/java/android/security/keystore2/AndroidKeyStoreRSACipherSpi.java
+++ b/keystore/java/android/security/keystore2/AndroidKeyStoreRSACipherSpi.java
@@ -21,7 +21,6 @@
 import android.hardware.security.keymint.KeyParameter;
 import android.security.keymaster.KeymasterDefs;
 import android.security.keystore.KeyProperties;
-import android.security.keystore.KeymasterUtils;
 import android.system.keystore2.Authorization;
 
 import java.security.AlgorithmParameters;
diff --git a/keystore/java/android/security/keystore2/AndroidKeyStoreSpi.java b/keystore/java/android/security/keystore2/AndroidKeyStoreSpi.java
index 32f98a2..3e2fb94 100644
--- a/keystore/java/android/security/keystore2/AndroidKeyStoreSpi.java
+++ b/keystore/java/android/security/keystore2/AndroidKeyStoreSpi.java
@@ -30,7 +30,6 @@
 import android.security.keystore.KeyPermanentlyInvalidatedException;
 import android.security.keystore.KeyProperties;
 import android.security.keystore.KeyProtection;
-import android.security.keystore.KeymasterUtils;
 import android.security.keystore.SecureKeyImportUnavailableException;
 import android.security.keystore.WrappedKeyEntry;
 import android.system.keystore2.AuthenticatorSpec;
diff --git a/keystore/java/android/security/keystore2/KeymasterUtils.java b/keystore/java/android/security/keystore2/KeymasterUtils.java
new file mode 100644
index 0000000..de4696c
--- /dev/null
+++ b/keystore/java/android/security/keystore2/KeymasterUtils.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.security.keystore2;
+
+import android.security.keymaster.KeymasterArguments;
+import android.security.keymaster.KeymasterDefs;
+import android.security.keystore.KeyProperties;
+
+import java.security.ProviderException;
+
+/**
+ * @hide
+ */
+public abstract class KeymasterUtils {
+
+    private KeymasterUtils() {}
+
+    /** @hide */
+    static int getDigestOutputSizeBits(int keymasterDigest) {
+        switch (keymasterDigest) {
+            case KeymasterDefs.KM_DIGEST_NONE:
+                return -1;
+            case KeymasterDefs.KM_DIGEST_MD5:
+                return 128;
+            case KeymasterDefs.KM_DIGEST_SHA1:
+                return 160;
+            case KeymasterDefs.KM_DIGEST_SHA_2_224:
+                return 224;
+            case KeymasterDefs.KM_DIGEST_SHA_2_256:
+                return 256;
+            case KeymasterDefs.KM_DIGEST_SHA_2_384:
+                return 384;
+            case KeymasterDefs.KM_DIGEST_SHA_2_512:
+                return 512;
+            default:
+                throw new IllegalArgumentException("Unknown digest: " + keymasterDigest);
+        }
+    }
+
+    /** @hide */
+    static boolean isKeymasterBlockModeIndCpaCompatibleWithSymmetricCrypto(
+            int keymasterBlockMode) {
+        switch (keymasterBlockMode) {
+            case KeymasterDefs.KM_MODE_ECB:
+                return false;
+            case KeymasterDefs.KM_MODE_CBC:
+            case KeymasterDefs.KM_MODE_CTR:
+            case KeymasterDefs.KM_MODE_GCM:
+                return true;
+            default:
+                throw new IllegalArgumentException("Unsupported block mode: " + keymasterBlockMode);
+        }
+    }
+
+    /** @hide */
+    static boolean isKeymasterPaddingSchemeIndCpaCompatibleWithAsymmetricCrypto(
+            int keymasterPadding) {
+        switch (keymasterPadding) {
+            case KeymasterDefs.KM_PAD_NONE:
+                return false;
+            case KeymasterDefs.KM_PAD_RSA_OAEP:
+            case KeymasterDefs.KM_PAD_RSA_PKCS1_1_5_ENCRYPT:
+                return true;
+            default:
+                throw new IllegalArgumentException(
+                        "Unsupported asymmetric encryption padding scheme: " + keymasterPadding);
+        }
+    }
+
+    /**
+     * Adds {@code KM_TAG_MIN_MAC_LENGTH} tag, if necessary, to the keymaster arguments for
+     * generating or importing a key. This tag may only be needed for symmetric keys (e.g., HMAC,
+     * AES-GCM).
+     */
+    public static void addMinMacLengthAuthorizationIfNecessary(KeymasterArguments args,
+            int keymasterAlgorithm,
+            int[] keymasterBlockModes,
+            int[] keymasterDigests) {
+        switch (keymasterAlgorithm) {
+            case KeymasterDefs.KM_ALGORITHM_AES:
+                if (com.android.internal.util.ArrayUtils.contains(
+                        keymasterBlockModes, KeymasterDefs.KM_MODE_GCM)) {
+                    // AES GCM key needs the minimum length of AEAD tag specified.
+                    args.addUnsignedInt(KeymasterDefs.KM_TAG_MIN_MAC_LENGTH,
+                            AndroidKeyStoreAuthenticatedAESCipherSpi.GCM
+                                    .MIN_SUPPORTED_TAG_LENGTH_BITS);
+                }
+                break;
+            case KeymasterDefs.KM_ALGORITHM_HMAC:
+                // HMAC key needs the minimum length of MAC set to the output size of the associated
+                // digest. This is because we do not offer a way to generate shorter MACs and
+                // don't offer a way to verify MACs (other than by generating them).
+                if (keymasterDigests.length != 1) {
+                    throw new ProviderException(
+                            "Unsupported number of authorized digests for HMAC key: "
+                                    + keymasterDigests.length
+                                    + ". Exactly one digest must be authorized");
+                }
+                int keymasterDigest = keymasterDigests[0];
+                int digestOutputSizeBits = getDigestOutputSizeBits(keymasterDigest);
+                if (digestOutputSizeBits == -1) {
+                    throw new ProviderException(
+                            "HMAC key authorized for unsupported digest: "
+                                    + KeyProperties.Digest.fromKeymaster(keymasterDigest));
+                }
+                args.addUnsignedInt(KeymasterDefs.KM_TAG_MIN_MAC_LENGTH, digestOutputSizeBits);
+                break;
+        }
+    }
+}
diff --git a/media/java/android/media/MediaCodec.java b/media/java/android/media/MediaCodec.java
index 5633236..54d0659 100644
--- a/media/java/android/media/MediaCodec.java
+++ b/media/java/android/media/MediaCodec.java
@@ -4607,6 +4607,25 @@
             return mType;
         }
 
+        @Override
+        public boolean equals(Object o) {
+            if (o == null) {
+                return false;
+            }
+            if (!(o instanceof ParameterDescriptor)) {
+                return false;
+            }
+            ParameterDescriptor other = (ParameterDescriptor) o;
+            return this.mName.equals(other.mName) && this.mType == other.mType;
+        }
+
+        @Override
+        public int hashCode() {
+            return Arrays.asList(
+                    (Object) mName,
+                    (Object) Integer.valueOf(mType)).hashCode();
+        }
+
         private String mName;
         private @MediaFormat.Type int mType;
     }
@@ -4631,7 +4650,8 @@
     private native ParameterDescriptor native_getParameterDescriptor(@NonNull String name);
 
     /**
-     * Subscribe to vendor parameters, so that changes to these parameters generate
+     * Subscribe to vendor parameters, so that these parameters will be present in
+     * {@link #getOutputFormat} and changes to these parameters generate
      * output format change event.
      * <p>
      * Unrecognized parameter names or standard (non-vendor) parameter names will be ignored.
@@ -4660,8 +4680,9 @@
     private native void native_subscribeToVendorParameters(@NonNull List<String> names);
 
     /**
-     * Unsubscribe from vendor parameters, so that changes to these parameters
-     * no longer generate output format change event.
+     * Unsubscribe from vendor parameters, so that these parameters will not be present in
+     * {@link #getOutputFormat} and changes to these parameters no longer generate
+     * output format change event.
      * <p>
      * Unrecognized parameter names, standard (non-vendor) parameter names will be ignored.
      * {@link #reset} also resets the list of subscribed parameters.
@@ -4669,7 +4690,8 @@
      * <p>
      * This method can be called in any codec state except for released state. When called in
      * running state with newly unsubscribed parameters, it takes effect no later than the
-     * processing of the subsequently queued buffer.
+     * processing of the subsequently queued buffer. For the removed parameters, the codec will
+     * generate output format change event.
      * <p>
      * Note that any vendor parameters set in a {@link #configure} or
      * {@link #setParameters} call are automatically subscribed, and with this method
diff --git a/media/jni/android_media_tv_Tuner.cpp b/media/jni/android_media_tv_Tuner.cpp
index 3976086e..49ef504 100644
--- a/media/jni/android_media_tv_Tuner.cpp
+++ b/media/jni/android_media_tv_Tuner.cpp
@@ -3258,7 +3258,7 @@
     if (descramblerSp == NULL) {
         return (jint) Result::NOT_INITIALIZED;
     }
-    sp<IFilter> iFilterSp = getFilter(env, filter)->getIFilter();
+    sp<IFilter> iFilterSp = (filter == NULL) ? NULL : getFilter(env, filter)->getIFilter();
     Result result = descramblerSp->addPid(getDemuxPid((int)pidType, (int)pid), iFilterSp);
     return (jint) result;
 }
@@ -3269,7 +3269,7 @@
     if (descramblerSp == NULL) {
         return (jint) Result::NOT_INITIALIZED;
     }
-    sp<IFilter> iFilterSp = getFilter(env, filter)->getIFilter();
+    sp<IFilter> iFilterSp = (filter == NULL) ? NULL : getFilter(env, filter)->getIFilter();
     Result result = descramblerSp->removePid(getDemuxPid((int)pidType, (int)pid), iFilterSp);
     return (jint) result;
 }
diff --git a/native/android/Android.bp b/native/android/Android.bp
index d1dddbd..34b9fce 100644
--- a/native/android/Android.bp
+++ b/native/android/Android.bp
@@ -77,6 +77,7 @@
         "libgui",
         "libharfbuzz_ng",  // Only for including hb.h via minikin
         "libsensor",
+        "libactivitymanager_aidl",
         "libandroid_runtime",
         "libminikin",
         "libnetd_client",
diff --git a/native/android/OWNERS b/native/android/OWNERS
index 6f7def8..02dfd39 100644
--- a/native/android/OWNERS
+++ b/native/android/OWNERS
@@ -1,3 +1,5 @@
+jreck@google.com
+
 per-file libandroid_net.map.txt, net.c = set noparent
 per-file libandroid_net.map.txt, net.c = codewiz@google.com, jchalard@google.com, junyulai@google.com
 per-file libandroid_net.map.txt, net.c = lorenzo@google.com, reminv@google.com, satk@google.com
@@ -6,3 +8,9 @@
 per-file native_window_jni.cpp = file:/services/core/java/com/android/server/wm/OWNERS
 per-file native_activity.cpp = file:/services/core/java/com/android/server/wm/OWNERS
 per-file surface_control.cpp = file:/services/core/java/com/android/server/wm/OWNERS
+
+per-file choreographer.cpp = file:/graphics/java/android/graphics/OWNERS
+per-file hardware_buffer_jni.cpp = file:/graphics/java/android/graphics/OWNERS
+per-file native_window_jni.cpp = file:/graphics/java/android/graphics/OWNERS
+per-file surface_control.cpp = file:/graphics/java/android/graphics/OWNERS
+per-file surface_texture.cpp = file:/graphics/java/android/graphics/OWNERS
diff --git a/packages/CompanionDeviceManager/AndroidManifest.xml b/packages/CompanionDeviceManager/AndroidManifest.xml
index ea9b52c..e4e5b9f 100644
--- a/packages/CompanionDeviceManager/AndroidManifest.xml
+++ b/packages/CompanionDeviceManager/AndroidManifest.xml
@@ -31,6 +31,7 @@
     <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
     <uses-permission android:name="android.permission.RADIO_SCAN_WITHOUT_LOCATION"/>
     <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES"/>
+    <uses-permission android:name="android.permission.HIDE_NON_SYSTEM_OVERLAY_WINDOWS"/>
 
     <application
         android:allowClearUserData="true"
diff --git a/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/DeviceChooserActivity.java b/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/DeviceChooserActivity.java
index e501e12..5ac059b 100644
--- a/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/DeviceChooserActivity.java
+++ b/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/DeviceChooserActivity.java
@@ -17,6 +17,7 @@
 package com.android.companiondevicemanager;
 
 import static android.companion.BluetoothDeviceFilterUtils.getDeviceMacAddress;
+import static android.view.WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
 
 import static java.util.Objects.requireNonNull;
 
@@ -58,6 +59,8 @@
             Log.e(LOG_TAG, "About to show UI, but no devices to show");
         }
 
+        getWindow().addSystemFlags(SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
+
         if (getService().mRequest.isSingleDevice()) {
             setContentView(R.layout.device_confirmation);
             final DeviceFilterPair selectedDevice = getService().mDevicesFound.get(0);
diff --git a/packages/Connectivity/framework/aidl-export/android/net/IpPrefix.aidl b/packages/Connectivity/framework/aidl-export/android/net/IpPrefix.aidl
index 0d70f2a..3495efc 100644
--- a/packages/Connectivity/framework/aidl-export/android/net/IpPrefix.aidl
+++ b/packages/Connectivity/framework/aidl-export/android/net/IpPrefix.aidl
@@ -18,5 +18,5 @@
 package android.net;
 
 // @JavaOnlyStableParcelable only affects the parcelable when built as stable aidl (aidl_interface
-// build rule). IpPrefix is also used in cpp but only as non-stable aidl.
-@JavaOnlyStableParcelable parcelable IpPrefix cpp_header "binder/IpPrefix.h";
+// build rule).
+@JavaOnlyStableParcelable parcelable IpPrefix;
diff --git a/packages/Connectivity/framework/api/current.txt b/packages/Connectivity/framework/api/current.txt
index 0a9560a..7692e30 100644
--- a/packages/Connectivity/framework/api/current.txt
+++ b/packages/Connectivity/framework/api/current.txt
@@ -298,7 +298,6 @@
     method @Nullable public android.net.NetworkSpecifier getNetworkSpecifier();
     method public int getOwnerUid();
     method public int getSignalStrength();
-    method @NonNull public java.util.Set<java.lang.Integer> getSubIds();
     method @Nullable public android.net.TransportInfo getTransportInfo();
     method public boolean hasCapability(int);
     method public boolean hasTransport(int);
@@ -408,10 +407,11 @@
     method public android.net.NetworkRequest.Builder removeTransportType(int);
     method @Deprecated public android.net.NetworkRequest.Builder setNetworkSpecifier(String);
     method public android.net.NetworkRequest.Builder setNetworkSpecifier(android.net.NetworkSpecifier);
-    method @NonNull public android.net.NetworkRequest.Builder setSubIds(@NonNull java.util.Set<java.lang.Integer>);
   }
 
   public class ParseException extends java.lang.RuntimeException {
+    ctor public ParseException(@NonNull String);
+    ctor public ParseException(@NonNull String, @NonNull Throwable);
     field public String response;
   }
 
diff --git a/packages/Connectivity/framework/api/module-lib-current.txt b/packages/Connectivity/framework/api/module-lib-current.txt
index cd96a1b..9e2cd3e 100644
--- a/packages/Connectivity/framework/api/module-lib-current.txt
+++ b/packages/Connectivity/framework/api/module-lib-current.txt
@@ -13,7 +13,7 @@
     method @NonNull public static String getPrivateDnsMode(@NonNull android.content.Context);
     method @RequiresPermission(anyOf={android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, android.Manifest.permission.NETWORK_SETTINGS}) public void registerDefaultNetworkCallbackAsUid(int, @NonNull android.net.ConnectivityManager.NetworkCallback, @NonNull android.os.Handler);
     method @RequiresPermission(anyOf={android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK, android.Manifest.permission.NETWORK_SETTINGS}) public void registerSystemDefaultNetworkCallback(@NonNull android.net.ConnectivityManager.NetworkCallback, @NonNull android.os.Handler);
-    method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_STACK, android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK}) public void requestBackgroundNetwork(@NonNull android.net.NetworkRequest, @NonNull android.os.Handler, @NonNull android.net.ConnectivityManager.NetworkCallback);
+    method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_STACK, android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK}) public void requestBackgroundNetwork(@NonNull android.net.NetworkRequest, @NonNull android.net.ConnectivityManager.NetworkCallback, @NonNull android.os.Handler);
     method @Deprecated public boolean requestRouteToHostAddress(int, java.net.InetAddress);
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_SETUP_WIZARD, android.Manifest.permission.NETWORK_STACK, android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK}) public void setAcceptPartialConnectivity(@NonNull android.net.Network, boolean, boolean);
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_SETUP_WIZARD, android.Manifest.permission.NETWORK_STACK, android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK}) public void setAcceptUnvalidated(@NonNull android.net.Network, boolean, boolean);
@@ -26,6 +26,10 @@
     method @RequiresPermission(anyOf={android.Manifest.permission.MANAGE_TEST_NETWORKS, android.Manifest.permission.NETWORK_STACK}) public void simulateDataStall(int, long, @NonNull android.net.Network, @NonNull android.os.PersistableBundle);
     method @RequiresPermission(anyOf={android.Manifest.permission.NETWORK_SETTINGS, android.Manifest.permission.NETWORK_STACK, android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK}) public void startCaptivePortalApp(@NonNull android.net.Network);
     method public void systemReady();
+    field public static final String ACTION_CLEAR_DNS_CACHE = "android.net.action.CLEAR_DNS_CACHE";
+    field public static final String ACTION_PROMPT_LOST_VALIDATION = "android.net.action.PROMPT_LOST_VALIDATION";
+    field public static final String ACTION_PROMPT_PARTIAL_CONNECTIVITY = "android.net.action.PROMPT_PARTIAL_CONNECTIVITY";
+    field public static final String ACTION_PROMPT_UNVALIDATED = "android.net.action.PROMPT_UNVALIDATED";
     field public static final int BLOCKED_METERED_REASON_ADMIN_DISABLED = 262144; // 0x40000
     field public static final int BLOCKED_METERED_REASON_DATA_SAVER = 65536; // 0x10000
     field public static final int BLOCKED_METERED_REASON_MASK = -65536; // 0xffff0000
@@ -104,7 +108,6 @@
   }
 
   public final class NetworkCapabilities implements android.os.Parcelable {
-    ctor public NetworkCapabilities(@Nullable android.net.NetworkCapabilities, long);
     method @Nullable public java.util.Set<android.util.Range<java.lang.Integer>> getUids();
     method public boolean hasUnwantedCapability(int);
     field public static final long REDACT_ALL = -1L; // 0xffffffffffffffffL
@@ -130,21 +133,6 @@
     method @NonNull public android.net.NetworkRequest.Builder setUids(@Nullable java.util.Set<android.util.Range<java.lang.Integer>>);
   }
 
-  public class ParseException extends java.lang.RuntimeException {
-    ctor public ParseException(@NonNull String);
-    ctor public ParseException(@NonNull String, @NonNull Throwable);
-  }
-
-  public final class TcpRepairWindow {
-    ctor public TcpRepairWindow(int, int, int, int, int, int);
-    field public final int maxWindow;
-    field public final int rcvWnd;
-    field public final int rcvWndScale;
-    field public final int rcvWup;
-    field public final int sndWl1;
-    field public final int sndWnd;
-  }
-
   public final class TestNetworkInterface implements android.os.Parcelable {
     ctor public TestNetworkInterface(@NonNull android.os.ParcelFileDescriptor, @NonNull String);
     method public int describeContents();
@@ -155,10 +143,10 @@
   }
 
   public class TestNetworkManager {
-    method @NonNull public android.net.TestNetworkInterface createTapInterface();
-    method @NonNull public android.net.TestNetworkInterface createTunInterface(@NonNull java.util.Collection<android.net.LinkAddress>);
-    method public void setupTestNetwork(@NonNull String, @NonNull android.os.IBinder);
-    method public void teardownTestNetwork(@NonNull android.net.Network);
+    method @NonNull @RequiresPermission(android.Manifest.permission.MANAGE_TEST_NETWORKS) public android.net.TestNetworkInterface createTapInterface();
+    method @NonNull @RequiresPermission(android.Manifest.permission.MANAGE_TEST_NETWORKS) public android.net.TestNetworkInterface createTunInterface(@NonNull java.util.Collection<android.net.LinkAddress>);
+    method @RequiresPermission(android.Manifest.permission.MANAGE_TEST_NETWORKS) public void setupTestNetwork(@NonNull String, @NonNull android.os.IBinder);
+    method @RequiresPermission(android.Manifest.permission.MANAGE_TEST_NETWORKS) public void teardownTestNetwork(@NonNull android.net.Network);
     field public static final String TEST_TAP_PREFIX = "testtap";
   }
 
@@ -176,10 +164,12 @@
   }
 
   public final class VpnTransportInfo implements android.os.Parcelable android.net.TransportInfo {
-    ctor public VpnTransportInfo(int);
+    ctor public VpnTransportInfo(int, @Nullable String);
     method public int describeContents();
+    method @NonNull public android.net.VpnTransportInfo makeCopy(long);
     method public void writeToParcel(@NonNull android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.net.VpnTransportInfo> CREATOR;
+    field @Nullable public final String sessionId;
     field public final int type;
   }
 
diff --git a/packages/Connectivity/framework/api/system-current.txt b/packages/Connectivity/framework/api/system-current.txt
index afd4fa0..de673ee 100644
--- a/packages/Connectivity/framework/api/system-current.txt
+++ b/packages/Connectivity/framework/api/system-current.txt
@@ -259,21 +259,23 @@
   public static final class NetworkAgentConfig.Builder {
     ctor public NetworkAgentConfig.Builder();
     method @NonNull public android.net.NetworkAgentConfig build();
-    method @NonNull public android.net.NetworkAgentConfig.Builder disableNat64Detection();
-    method @NonNull public android.net.NetworkAgentConfig.Builder disableProvisioningNotification();
     method @NonNull public android.net.NetworkAgentConfig.Builder setExplicitlySelected(boolean);
     method @NonNull public android.net.NetworkAgentConfig.Builder setLegacyExtraInfo(@NonNull String);
     method @NonNull public android.net.NetworkAgentConfig.Builder setLegacySubType(int);
     method @NonNull public android.net.NetworkAgentConfig.Builder setLegacySubTypeName(@NonNull String);
     method @NonNull public android.net.NetworkAgentConfig.Builder setLegacyType(int);
     method @NonNull public android.net.NetworkAgentConfig.Builder setLegacyTypeName(@NonNull String);
+    method @NonNull public android.net.NetworkAgentConfig.Builder setNat64DetectionEnabled(boolean);
     method @NonNull public android.net.NetworkAgentConfig.Builder setPartialConnectivityAcceptable(boolean);
+    method @NonNull public android.net.NetworkAgentConfig.Builder setProvisioningNotificationEnabled(boolean);
     method @NonNull public android.net.NetworkAgentConfig.Builder setUnvalidatedConnectivityAcceptable(boolean);
   }
 
   public final class NetworkCapabilities implements android.os.Parcelable {
     method @NonNull public int[] getAdministratorUids();
+    method @Nullable public static String getCapabilityCarrierName(int);
     method @Nullable public String getSsid();
+    method @NonNull public java.util.Set<java.lang.Integer> getSubIds();
     method @NonNull public int[] getTransportTypes();
     method public boolean isPrivateDnsBroken();
     method public boolean satisfiedByNetworkCapabilities(@Nullable android.net.NetworkCapabilities);
@@ -327,6 +329,7 @@
 
   public static class NetworkRequest.Builder {
     method @NonNull @RequiresPermission(android.Manifest.permission.NETWORK_SIGNAL_STRENGTH_WAKEUP) public android.net.NetworkRequest.Builder setSignalStrength(int);
+    method @NonNull public android.net.NetworkRequest.Builder setSubIds(@NonNull java.util.Set<java.lang.Integer>);
   }
 
   public final class NetworkScore implements android.os.Parcelable {
@@ -452,14 +455,14 @@
   public final class TcpKeepalivePacketData extends android.net.KeepalivePacketData implements android.os.Parcelable {
     ctor public TcpKeepalivePacketData(@NonNull java.net.InetAddress, int, @NonNull java.net.InetAddress, int, @NonNull byte[], int, int, int, int, int, int) throws android.net.InvalidPacketException;
     method public int describeContents();
+    method public int getIpTos();
+    method public int getIpTtl();
+    method public int getTcpAck();
+    method public int getTcpSeq();
+    method public int getTcpWindow();
+    method public int getTcpWindowScale();
     method public void writeToParcel(@NonNull android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.net.TcpKeepalivePacketData> CREATOR;
-    field public final int ipTos;
-    field public final int ipTtl;
-    field public final int tcpAck;
-    field public final int tcpSeq;
-    field public final int tcpWindow;
-    field public final int tcpWindowScale;
   }
 
 }
diff --git a/packages/Connectivity/framework/src/android/net/CaptivePortalData.java b/packages/Connectivity/framework/src/android/net/CaptivePortalData.java
index 82dbd0f..53aa1b9 100644
--- a/packages/Connectivity/framework/src/android/net/CaptivePortalData.java
+++ b/packages/Connectivity/framework/src/android/net/CaptivePortalData.java
@@ -42,7 +42,7 @@
     private final long mByteLimit;
     private final long mExpiryTimeMillis;
     private final boolean mCaptive;
-    private final CharSequence mVenueFriendlyName;
+    private final String mVenueFriendlyName;
     private final int mVenueInfoUrlSource;
     private final int mUserPortalUrlSource;
 
@@ -73,14 +73,14 @@
         mByteLimit = byteLimit;
         mExpiryTimeMillis = expiryTimeMillis;
         mCaptive = captive;
-        mVenueFriendlyName = venueFriendlyName;
+        mVenueFriendlyName = venueFriendlyName == null ? null : venueFriendlyName.toString();
         mVenueInfoUrlSource = venueInfoUrlSource;
         mUserPortalUrlSource = userPortalUrlSource;
     }
 
     private CaptivePortalData(Parcel p) {
         this(p.readLong(), p.readParcelable(null), p.readParcelable(null), p.readBoolean(),
-                p.readLong(), p.readLong(), p.readBoolean(), p.readCharSequence(), p.readInt(),
+                p.readLong(), p.readLong(), p.readBoolean(), p.readString(), p.readInt(),
                 p.readInt());
     }
 
@@ -98,7 +98,7 @@
         dest.writeLong(mByteLimit);
         dest.writeLong(mExpiryTimeMillis);
         dest.writeBoolean(mCaptive);
-        dest.writeCharSequence(mVenueFriendlyName);
+        dest.writeString(mVenueFriendlyName);
         dest.writeInt(mVenueInfoUrlSource);
         dest.writeInt(mUserPortalUrlSource);
     }
diff --git a/packages/Connectivity/framework/src/android/net/ConnectivityFrameworkInitializer.java b/packages/Connectivity/framework/src/android/net/ConnectivityFrameworkInitializer.java
index 92a792b..a2e218d 100644
--- a/packages/Connectivity/framework/src/android/net/ConnectivityFrameworkInitializer.java
+++ b/packages/Connectivity/framework/src/android/net/ConnectivityFrameworkInitializer.java
@@ -68,5 +68,11 @@
                     return cm.startOrGetTestNetworkManager();
                 }
         );
+
+        SystemServiceRegistry.registerContextAwareService(
+                DnsResolverServiceManager.DNS_RESOLVER_SERVICE,
+                DnsResolverServiceManager.class,
+                (context, serviceBinder) -> new DnsResolverServiceManager(serviceBinder)
+        );
     }
 }
diff --git a/packages/Connectivity/framework/src/android/net/ConnectivityManager.java b/packages/Connectivity/framework/src/android/net/ConnectivityManager.java
index c6f4e0b..043ff38 100644
--- a/packages/Connectivity/framework/src/android/net/ConnectivityManager.java
+++ b/packages/Connectivity/framework/src/android/net/ConnectivityManager.java
@@ -44,6 +44,7 @@
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
+import android.net.ConnectivityDiagnosticsManager.DataStallReport.DetectionMethod;
 import android.net.IpSecManager.UdpEncapsulationSocket;
 import android.net.SocketKeepalive.Callback;
 import android.net.TetheringManager.StartTetheringCallback;
@@ -425,7 +426,8 @@
      *
      * @hide
      */
-    public static final String ACTION_PROMPT_UNVALIDATED = "android.net.conn.PROMPT_UNVALIDATED";
+    @SystemApi(client = MODULE_LIBRARIES)
+    public static final String ACTION_PROMPT_UNVALIDATED = "android.net.action.PROMPT_UNVALIDATED";
 
     /**
      * Action used to display a dialog that asks the user whether to avoid a network that is no
@@ -433,8 +435,9 @@
      *
      * @hide
      */
+    @SystemApi(client = MODULE_LIBRARIES)
     public static final String ACTION_PROMPT_LOST_VALIDATION =
-            "android.net.conn.PROMPT_LOST_VALIDATION";
+            "android.net.action.PROMPT_LOST_VALIDATION";
 
     /**
      * Action used to display a dialog that asks the user whether to stay connected to a network
@@ -443,8 +446,18 @@
      *
      * @hide
      */
+    @SystemApi(client = MODULE_LIBRARIES)
     public static final String ACTION_PROMPT_PARTIAL_CONNECTIVITY =
-            "android.net.conn.PROMPT_PARTIAL_CONNECTIVITY";
+            "android.net.action.PROMPT_PARTIAL_CONNECTIVITY";
+
+    /**
+     * Clear DNS Cache Action: This is broadcast when networks have changed and old
+     * DNS entries should be cleared.
+     * @hide
+     */
+    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+    public static final String ACTION_CLEAR_DNS_CACHE = "android.net.action.CLEAR_DNS_CACHE";
 
     /**
      * Invalid tethering type.
@@ -3140,18 +3153,27 @@
     }
 
     /**
-     * Set a network-independent global http proxy.  This is not normally what you want
-     * for typical HTTP proxies - they are general network dependent.  However if you're
-     * doing something unusual like general internal filtering this may be useful.  On
-     * a private network where the proxy is not accessible, you may break HTTP using this.
+     * Set a network-independent global HTTP proxy.
      *
-     * @param p A {@link ProxyInfo} object defining the new global
-     *        HTTP proxy.  A {@code null} value will clear the global HTTP proxy.
+     * This sets an HTTP proxy that applies to all networks and overrides any network-specific
+     * proxy. If set, HTTP libraries that are proxy-aware will use this global proxy when
+     * accessing any network, regardless of what the settings for that network are.
+     *
+     * Note that HTTP proxies are by nature typically network-dependent, and setting a global
+     * proxy is likely to break networking on multiple networks. This method is only meant
+     * for device policy clients looking to do general internal filtering or similar use cases.
+     *
+     * {@see #getGlobalProxy}
+     * {@see LinkProperties#getHttpProxy}
+     *
+     * @param p A {@link ProxyInfo} object defining the new global HTTP proxy. Calling this
+     *          method with a {@code null} value will clear the global HTTP proxy.
      * @hide
      */
+    // Used by Device Policy Manager to set the global proxy.
     @SystemApi(client = MODULE_LIBRARIES)
     @RequiresPermission(android.Manifest.permission.NETWORK_STACK)
-    public void setGlobalProxy(@Nullable ProxyInfo p) {
+    public void setGlobalProxy(@Nullable final ProxyInfo p) {
         try {
             mService.setGlobalProxy(p);
         } catch (RemoteException e) {
@@ -3409,6 +3431,8 @@
          * not include location sensitive info.
          * </p>
          */
+        // Note: Some existing fields which are location sensitive may still be included without
+        // this flag if the app targets SDK < S (to maintain backwards compatibility).
         public static final int FLAG_INCLUDE_LOCATION_INFO = 1 << 0;
 
         /** @hide */
@@ -5081,10 +5105,13 @@
      *
      * <p>This method should only be used for tests.
      *
-     * <p>The caller must be the owner of the specified Network.
+     * <p>The caller must be the owner of the specified Network. This simulates a data stall to
+     * have the system behave as if it had happened, but does not actually stall connectivity.
      *
      * @param detectionMethod The detection method used to identify the Data Stall.
-     * @param timestampMillis The timestamp at which the stall 'occurred', in milliseconds.
+     *                        See ConnectivityDiagnosticsManager.DataStallReport.DETECTION_METHOD_*.
+     * @param timestampMillis The timestamp at which the stall 'occurred', in milliseconds, as per
+     *                        SystemClock.elapsedRealtime.
      * @param network The Network for which a Data Stall is being simluated.
      * @param extras The PersistableBundle of extras included in the Data Stall notification.
      * @throws SecurityException if the caller is not the owner of the given network.
@@ -5093,7 +5120,7 @@
     @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     @RequiresPermission(anyOf = {android.Manifest.permission.MANAGE_TEST_NETWORKS,
             android.Manifest.permission.NETWORK_STACK})
-    public void simulateDataStall(int detectionMethod, long timestampMillis,
+    public void simulateDataStall(@DetectionMethod int detectionMethod, long timestampMillis,
             @NonNull Network network, @NonNull PersistableBundle extras) {
         try {
             mService.simulateDataStall(detectionMethod, timestampMillis, network, extras);
@@ -5280,10 +5307,10 @@
      * {@link #unregisterNetworkCallback(NetworkCallback)}.
      *
      * @param request {@link NetworkRequest} describing this request.
-     * @param handler {@link Handler} to specify the thread upon which the callback will be invoked.
-     *                If null, the callback is invoked on the default internal Handler.
      * @param networkCallback The {@link NetworkCallback} to be utilized for this request. Note
      *                        the callback must not be shared - it uniquely specifies this request.
+     * @param handler {@link Handler} to specify the thread upon which the callback will be invoked.
+     *                If null, the callback is invoked on the default internal Handler.
      * @throws IllegalArgumentException if {@code request} contains invalid network capabilities.
      * @throws SecurityException if missing the appropriate permissions.
      * @throws RuntimeException if the app already has too many callbacks registered.
@@ -5298,7 +5325,8 @@
             NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK
     })
     public void requestBackgroundNetwork(@NonNull NetworkRequest request,
-            @NonNull Handler handler, @NonNull NetworkCallback networkCallback) {
+            @NonNull NetworkCallback networkCallback,
+            @SuppressLint("ListenerLast") @NonNull Handler handler) {
         final NetworkCapabilities nc = request.networkCapabilities;
         sendRequestForNetwork(nc, networkCallback, 0, BACKGROUND_REQUEST,
                 TYPE_NONE, new CallbackHandler(handler));
diff --git a/packages/Connectivity/framework/src/android/net/DnsResolver.java b/packages/Connectivity/framework/src/android/net/DnsResolver.java
index 3f7660f..dac88ad 100644
--- a/packages/Connectivity/framework/src/android/net/DnsResolver.java
+++ b/packages/Connectivity/framework/src/android/net/DnsResolver.java
@@ -500,7 +500,7 @@
                             try {
                                 resp = resNetworkResult(fd);  // Closes fd, marks it invalid.
                             } catch (ErrnoException e) {
-                                Log.e(TAG, "resNetworkResult:" + e.toString());
+                                Log.w(TAG, "resNetworkResult:" + e.toString());
                                 exception = e;
                             }
                         }
diff --git a/packages/Connectivity/framework/src/android/net/DnsResolverServiceManager.java b/packages/Connectivity/framework/src/android/net/DnsResolverServiceManager.java
new file mode 100644
index 0000000..79009e8
--- /dev/null
+++ b/packages/Connectivity/framework/src/android/net/DnsResolverServiceManager.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.net;
+
+import android.annotation.NonNull;
+import android.os.IBinder;
+
+/**
+ * Provides a way to obtain the DnsResolver binder objects.
+ *
+ * @hide
+ */
+public class DnsResolverServiceManager {
+    /** Service name for the DNS resolver. Keep in sync with DnsResolverService.h */
+    public static final String DNS_RESOLVER_SERVICE = "dnsresolver";
+
+    private final IBinder mResolver;
+
+    DnsResolverServiceManager(IBinder resolver) {
+        mResolver = resolver;
+    }
+
+    /**
+     * Get an {@link IBinder} representing the DnsResolver stable AIDL interface
+     *
+     * @return {@link android.net.IDnsResolver} IBinder.
+     */
+    @NonNull
+    public IBinder getService() {
+        return mResolver;
+    }
+}
diff --git a/packages/Connectivity/framework/src/android/net/LinkProperties.java b/packages/Connectivity/framework/src/android/net/LinkProperties.java
index e41ed72..99f48b4 100644
--- a/packages/Connectivity/framework/src/android/net/LinkProperties.java
+++ b/packages/Connectivity/framework/src/android/net/LinkProperties.java
@@ -686,8 +686,8 @@
     }
 
     /**
-     * Adds a {@link RouteInfo} to this {@code LinkProperties}, if a {@link RouteInfo}
-     * with the same {@link RouteInfo.RouteKey} with different properties
+     * Adds a {@link RouteInfo} to this {@code LinkProperties}. If there is a {@link RouteInfo}
+     * with the same destination, gateway and interface with different properties
      * (e.g., different MTU), it will be updated. If the {@link RouteInfo} had an
      * interface name set and that differs from the interface set for this
      * {@code LinkProperties} an {@link IllegalArgumentException} will be thrown.
diff --git a/packages/Connectivity/framework/src/android/net/Network.java b/packages/Connectivity/framework/src/android/net/Network.java
index 0741414..41fad63 100644
--- a/packages/Connectivity/framework/src/android/net/Network.java
+++ b/packages/Connectivity/framework/src/android/net/Network.java
@@ -27,7 +27,6 @@
 import android.system.ErrnoException;
 import android.system.Os;
 import android.system.OsConstants;
-import android.util.proto.ProtoOutputStream;
 
 import com.android.internal.annotations.GuardedBy;
 
@@ -526,11 +525,4 @@
     public String toString() {
         return Integer.toString(netId);
     }
-
-    /** @hide */
-    public void dumpDebug(ProtoOutputStream proto, long fieldId) {
-        final long token = proto.start(fieldId);
-        proto.write(NetworkProto.NET_ID, netId);
-        proto.end(token);
-    }
 }
diff --git a/packages/Connectivity/framework/src/android/net/NetworkAgentConfig.java b/packages/Connectivity/framework/src/android/net/NetworkAgentConfig.java
index 3f058d8..ad8396b 100644
--- a/packages/Connectivity/framework/src/android/net/NetworkAgentConfig.java
+++ b/packages/Connectivity/framework/src/android/net/NetworkAgentConfig.java
@@ -311,26 +311,28 @@
         }
 
         /**
-         * Disables active detection of NAT64 (e.g., via RFC 7050 DNS lookups). Used to save power
-         * and reduce idle traffic on networks that are known to be IPv6-only without a NAT64.
+         * Enables or disables active detection of NAT64 (e.g., via RFC 7050 DNS lookups). Used to
+         * save power and reduce idle traffic on networks that are known to be IPv6-only without a
+         * NAT64. By default, NAT64 detection is enabled.
          *
          * @return this builder, to facilitate chaining.
          */
         @NonNull
-        public Builder disableNat64Detection() {
-            mConfig.skip464xlat = true;
+        public Builder setNat64DetectionEnabled(boolean enabled) {
+            mConfig.skip464xlat = !enabled;
             return this;
         }
 
         /**
-         * Disables the "Sign in to network" notification. Used if the network transport will
-         * perform its own carrier-specific provisioning procedure.
+         * Enables or disables the "Sign in to network" notification. Used if the network transport
+         * will perform its own carrier-specific provisioning procedure. By default, the
+         * notification is enabled.
          *
          * @return this builder, to facilitate chaining.
          */
         @NonNull
-        public Builder disableProvisioningNotification() {
-            mConfig.provisioningNotificationDisabled = true;
+        public Builder setProvisioningNotificationEnabled(boolean enabled) {
+            mConfig.provisioningNotificationDisabled = !enabled;
             return this;
         }
 
diff --git a/packages/Connectivity/framework/src/android/net/NetworkCapabilities.java b/packages/Connectivity/framework/src/android/net/NetworkCapabilities.java
index 7e70891..a43dd15 100644
--- a/packages/Connectivity/framework/src/android/net/NetworkCapabilities.java
+++ b/packages/Connectivity/framework/src/android/net/NetworkCapabilities.java
@@ -35,7 +35,6 @@
 import android.text.TextUtils;
 import android.util.ArraySet;
 import android.util.Range;
-import android.util.proto.ProtoOutputStream;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.net.module.util.CollectionUtils;
@@ -163,7 +162,6 @@
      *                   {@link NetworkCapabilities}.
      * @hide
      */
-    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public NetworkCapabilities(@Nullable NetworkCapabilities nc, @RedactionType long redactions) {
         mRedactions = redactions;
         if (nc != null) {
@@ -593,8 +591,9 @@
         // TODO: Consider adding unwanted capabilities to the public API and mention this
         // in the documentation.
         checkValidCapability(capability);
-        mNetworkCapabilities |= 1 << capability;
-        mUnwantedNetworkCapabilities &= ~(1 << capability);  // remove from unwanted capability list
+        mNetworkCapabilities |= 1L << capability;
+        // remove from unwanted capability list
+        mUnwantedNetworkCapabilities &= ~(1L << capability);
         return this;
     }
 
@@ -613,8 +612,8 @@
      */
     public void addUnwantedCapability(@NetCapability int capability) {
         checkValidCapability(capability);
-        mUnwantedNetworkCapabilities |= 1 << capability;
-        mNetworkCapabilities &= ~(1 << capability);  // remove from requested capabilities
+        mUnwantedNetworkCapabilities |= 1L << capability;
+        mNetworkCapabilities &= ~(1L << capability);  // remove from requested capabilities
     }
 
     /**
@@ -627,7 +626,7 @@
      */
     public @NonNull NetworkCapabilities removeCapability(@NetCapability int capability) {
         checkValidCapability(capability);
-        final long mask = ~(1 << capability);
+        final long mask = ~(1L << capability);
         mNetworkCapabilities &= mask;
         return this;
     }
@@ -642,7 +641,7 @@
      */
     public @NonNull NetworkCapabilities removeUnwantedCapability(@NetCapability int capability) {
         checkValidCapability(capability);
-        mUnwantedNetworkCapabilities &= ~(1 << capability);
+        mUnwantedNetworkCapabilities &= ~(1L << capability);
         return this;
     }
 
@@ -710,14 +709,14 @@
      */
     public boolean hasCapability(@NetCapability int capability) {
         return isValidCapability(capability)
-                && ((mNetworkCapabilities & (1 << capability)) != 0);
+                && ((mNetworkCapabilities & (1L << capability)) != 0);
     }
 
     /** @hide */
     @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public boolean hasUnwantedCapability(@NetCapability int capability) {
         return isValidCapability(capability)
-                && ((mUnwantedNetworkCapabilities & (1 << capability)) != 0);
+                && ((mUnwantedNetworkCapabilities & (1L << capability)) != 0);
     }
 
     /**
@@ -728,6 +727,23 @@
         return ((mNetworkCapabilities & CONNECTIVITY_MANAGED_CAPABILITIES) != 0);
     }
 
+    /**
+     * Get the name of the given capability that carriers use.
+     * If the capability does not have a carrier-name, returns null.
+     *
+     * @param capability The capability to get the carrier-name of.
+     * @return The carrier-name of the capability, or null if it doesn't exist.
+     * @hide
+     */
+    @SystemApi
+    public static @Nullable String getCapabilityCarrierName(@NetCapability int capability) {
+        if (capability == NET_CAPABILITY_ENTERPRISE) {
+            return capabilityNameOf(capability);
+        } else {
+            return null;
+        }
+    }
+
     private void combineNetCapabilities(@NonNull NetworkCapabilities nc) {
         final long wantedCaps = this.mNetworkCapabilities | nc.mNetworkCapabilities;
         final long unwantedCaps =
@@ -1095,7 +1111,9 @@
      * app needs to hold {@link android.Manifest.permission#ACCESS_FINE_LOCATION} permission. If the
      * app targets SDK version greater than or equal to {@link Build.VERSION_CODES#S}, then they
      * also need to use {@link NetworkCallback#FLAG_INCLUDE_LOCATION_INFO} to get the info in their
-     * callback. The app will be blamed for location access if this field is included.
+     * callback. If the apps targets SDK version equal to {{@link Build.VERSION_CODES#R}, this field
+     * will always be included. The app will be blamed for location access if this field is
+     * included.
      * </p>
      */
     public int getOwnerUid() {
@@ -2041,34 +2059,6 @@
         }
     }
 
-    /** @hide */
-    public void dumpDebug(@NonNull ProtoOutputStream proto, long fieldId) {
-        final long token = proto.start(fieldId);
-
-        for (int transport : getTransportTypes()) {
-            proto.write(NetworkCapabilitiesProto.TRANSPORTS, transport);
-        }
-
-        for (int capability : getCapabilities()) {
-            proto.write(NetworkCapabilitiesProto.CAPABILITIES, capability);
-        }
-
-        proto.write(NetworkCapabilitiesProto.LINK_UP_BANDWIDTH_KBPS, mLinkUpBandwidthKbps);
-        proto.write(NetworkCapabilitiesProto.LINK_DOWN_BANDWIDTH_KBPS, mLinkDownBandwidthKbps);
-
-        if (mNetworkSpecifier != null) {
-            proto.write(NetworkCapabilitiesProto.NETWORK_SPECIFIER, mNetworkSpecifier.toString());
-        }
-        if (mTransportInfo != null) {
-            // TODO b/120653863: write transport-specific info to proto?
-        }
-
-        proto.write(NetworkCapabilitiesProto.CAN_REPORT_SIGNAL_STRENGTH, hasSignalStrength());
-        proto.write(NetworkCapabilitiesProto.SIGNAL_STRENGTH, mSignalStrength);
-
-        proto.end(token);
-    }
-
     /**
      * @hide
      */
@@ -2346,9 +2336,15 @@
 
     /**
      * Gets the subscription ID set that associated to this network or request.
+     *
+     * <p>Instances of NetworkCapabilities will only have this field populated by the system if the
+     * receiver holds the NETWORK_FACTORY permission. In all other cases, it will be the empty set.
+     *
      * @return
+     * @hide
      */
     @NonNull
+    @SystemApi
     public Set<Integer> getSubIds() {
         return new ArraySet<>(mSubIds);
     }
@@ -2713,10 +2709,17 @@
         /**
          * Set the subscription ID set.
          *
+         * <p>SubIds are populated in NetworkCapability instances from the system only for callers
+         * that hold the NETWORK_FACTORY permission. Similarly, the system will reject any
+         * NetworkRequests filed with a non-empty set of subIds unless the caller holds the
+         * NETWORK_FACTORY permission.
+         *
          * @param subIds a set that represent the subscription IDs. Empty if clean up.
          * @return this builder.
+         * @hide
          */
         @NonNull
+        @SystemApi
         public Builder setSubIds(@NonNull final Set<Integer> subIds) {
             mCaps.setSubIds(subIds);
             return this;
diff --git a/packages/Connectivity/framework/src/android/net/NetworkRequest.java b/packages/Connectivity/framework/src/android/net/NetworkRequest.java
index 38691ef..3a8a07a 100644
--- a/packages/Connectivity/framework/src/android/net/NetworkRequest.java
+++ b/packages/Connectivity/framework/src/android/net/NetworkRequest.java
@@ -47,7 +47,6 @@
 import android.os.Process;
 import android.text.TextUtils;
 import android.util.Range;
-import android.util.proto.ProtoOutputStream;
 
 import java.util.Arrays;
 import java.util.List;
@@ -501,9 +500,14 @@
          * A network will satisfy this request only if it matches one of the subIds in this set.
          * An empty set matches all networks, including those without a subId.
          *
+         * <p>Registering a NetworkRequest with a non-empty set of subIds requires the
+         * NETWORK_FACTORY permission.
+         *
          * @param subIds A {@code Set} that represents subscription IDs.
+         * @hide
          */
         @NonNull
+        @SystemApi
         public Builder setSubIds(@NonNull Set<Integer> subIds) {
             mNetworkCapabilities.setSubIds(subIds);
             return this;
@@ -675,18 +679,6 @@
         }
     }
 
-    /** @hide */
-    public void dumpDebug(ProtoOutputStream proto, long fieldId) {
-        final long token = proto.start(fieldId);
-
-        proto.write(NetworkRequestProto.TYPE, typeToProtoEnum(type));
-        proto.write(NetworkRequestProto.REQUEST_ID, requestId);
-        proto.write(NetworkRequestProto.LEGACY_TYPE, legacyType);
-        networkCapabilities.dumpDebug(proto, NetworkRequestProto.NETWORK_CAPABILITIES);
-
-        proto.end(token);
-    }
-
     public boolean equals(@Nullable Object obj) {
         if (obj instanceof NetworkRequest == false) return false;
         NetworkRequest that = (NetworkRequest)obj;
diff --git a/packages/Connectivity/framework/src/android/net/OemNetworkPreferences.java b/packages/Connectivity/framework/src/android/net/OemNetworkPreferences.java
index 5a76cd6..2bb006d 100644
--- a/packages/Connectivity/framework/src/android/net/OemNetworkPreferences.java
+++ b/packages/Connectivity/framework/src/android/net/OemNetworkPreferences.java
@@ -40,6 +40,23 @@
  */
 @SystemApi
 public final class OemNetworkPreferences implements Parcelable {
+    // Valid production preferences must be > 0, negative values reserved for testing
+    /**
+     * This preference is only to be used for testing and nothing else.
+     * Use only TRANSPORT_TEST transport networks.
+     * @hide
+     */
+    public static final int OEM_NETWORK_PREFERENCE_TEST_ONLY = -2;
+
+    /**
+     * This preference is only to be used for testing and nothing else.
+     * If an unmetered network is available, use it.
+     * Otherwise, if a network with the TRANSPORT_TEST transport is available, use it.
+     * Otherwise, use the general default network.
+     * @hide
+     */
+    public static final int OEM_NETWORK_PREFERENCE_TEST = -1;
+
     /**
      * Default in case this value is not set. Using it will result in an error.
      */
@@ -69,6 +86,12 @@
      */
     public static final int OEM_NETWORK_PREFERENCE_OEM_PRIVATE_ONLY = 4;
 
+    /**
+     * The max allowed value for an OEM network preference.
+     * @hide
+     */
+    public static final int OEM_NETWORK_PREFERENCE_MAX = OEM_NETWORK_PREFERENCE_OEM_PRIVATE_ONLY;
+
     @NonNull
     private final Bundle mNetworkMappings;
 
@@ -96,7 +119,7 @@
 
     @Override
     public String toString() {
-        return "OemNetworkPreferences{" + "mNetworkMappings=" + mNetworkMappings + '}';
+        return "OemNetworkPreferences{" + "mNetworkMappings=" + getNetworkPreferences() + '}';
     }
 
     @Override
@@ -185,6 +208,8 @@
 
     /** @hide */
     @IntDef(prefix = "OEM_NETWORK_PREFERENCE_", value = {
+            OEM_NETWORK_PREFERENCE_TEST_ONLY,
+            OEM_NETWORK_PREFERENCE_TEST,
             OEM_NETWORK_PREFERENCE_UNINITIALIZED,
             OEM_NETWORK_PREFERENCE_OEM_PAID,
             OEM_NETWORK_PREFERENCE_OEM_PAID_NO_FALLBACK,
@@ -205,6 +230,10 @@
     @NonNull
     public static String oemNetworkPreferenceToString(@OemNetworkPreference int value) {
         switch (value) {
+            case OEM_NETWORK_PREFERENCE_TEST_ONLY:
+                return "OEM_NETWORK_PREFERENCE_TEST_ONLY";
+            case OEM_NETWORK_PREFERENCE_TEST:
+                return "OEM_NETWORK_PREFERENCE_TEST";
             case OEM_NETWORK_PREFERENCE_UNINITIALIZED:
                 return "OEM_NETWORK_PREFERENCE_UNINITIALIZED";
             case OEM_NETWORK_PREFERENCE_OEM_PAID:
diff --git a/packages/Connectivity/framework/src/android/net/ParseException.java b/packages/Connectivity/framework/src/android/net/ParseException.java
index ca6d012..9d4727a 100644
--- a/packages/Connectivity/framework/src/android/net/ParseException.java
+++ b/packages/Connectivity/framework/src/android/net/ParseException.java
@@ -17,7 +17,6 @@
 package android.net;
 
 import android.annotation.NonNull;
-import android.annotation.SystemApi;
 
 /**
  * Thrown when parsing failed.
@@ -26,15 +25,11 @@
 public class ParseException extends RuntimeException {
     public String response;
 
-    /** @hide */
-    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public ParseException(@NonNull String response) {
         super(response);
         this.response = response;
     }
 
-    /** @hide */
-    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public ParseException(@NonNull String response, @NonNull Throwable cause) {
         super(response, cause);
         this.response = response;
diff --git a/packages/Connectivity/framework/src/android/net/TcpKeepalivePacketData.java b/packages/Connectivity/framework/src/android/net/TcpKeepalivePacketData.java
index ddb3a6a7..c2c4f32 100644
--- a/packages/Connectivity/framework/src/android/net/TcpKeepalivePacketData.java
+++ b/packages/Connectivity/framework/src/android/net/TcpKeepalivePacketData.java
@@ -32,22 +32,39 @@
 public final class TcpKeepalivePacketData extends KeepalivePacketData implements Parcelable {
     private static final String TAG = "TcpKeepalivePacketData";
 
-    /** TCP sequence number. */
+    /**
+     * TCP sequence number.
+     * @hide
+     */
     public final int tcpSeq;
 
-    /** TCP ACK number. */
+    /**
+     * TCP ACK number.
+     * @hide
+     */
     public final int tcpAck;
 
-    /** TCP RCV window. */
+    /**
+     * TCP RCV window.
+     * @hide
+     */
     public final int tcpWindow;
 
-    /** TCP RCV window scale. */
+    /** TCP RCV window scale.
+     * @hide
+     */
     public final int tcpWindowScale;
 
-    /** IP TOS. */
+    /**
+     * IP TOS.
+     * @hide
+     */
     public final int ipTos;
 
-    /** IP TTL. */
+    /**
+     * IP TTL.
+     * @hide
+     */
     public final int ipTtl;
 
     public TcpKeepalivePacketData(@NonNull final InetAddress srcAddress, int srcPort,
@@ -63,6 +80,56 @@
         this.ipTtl = ipTtl;
     }
 
+    /**
+     * Get the TCP sequence number.
+     *
+     * See https://tools.ietf.org/html/rfc793#page-15.
+     */
+    public int getTcpSeq() {
+        return tcpSeq;
+    }
+
+    /**
+     * Get the TCP ACK number.
+     *
+     * See https://tools.ietf.org/html/rfc793#page-15.
+     */
+    public int getTcpAck() {
+        return tcpAck;
+    }
+
+    /**
+     * Get the TCP RCV window.
+     *
+     * See https://tools.ietf.org/html/rfc793#page-15.
+     */
+    public int getTcpWindow() {
+        return tcpWindow;
+    }
+
+    /**
+     * Get the TCP RCV window scale.
+     *
+     * See https://tools.ietf.org/html/rfc793#page-15.
+     */
+    public int getTcpWindowScale() {
+        return tcpWindowScale;
+    }
+
+    /**
+     * Get the IP type of service.
+     */
+    public int getIpTos() {
+        return ipTos;
+    }
+
+    /**
+     * Get the IP TTL.
+     */
+    public int getIpTtl() {
+        return ipTtl;
+    }
+
     @Override
     public boolean equals(@Nullable final Object o) {
         if (!(o instanceof TcpKeepalivePacketData)) return false;
diff --git a/packages/Connectivity/framework/src/android/net/TcpRepairWindow.java b/packages/Connectivity/framework/src/android/net/TcpRepairWindow.java
index f062fa9..86034f0 100644
--- a/packages/Connectivity/framework/src/android/net/TcpRepairWindow.java
+++ b/packages/Connectivity/framework/src/android/net/TcpRepairWindow.java
@@ -16,15 +16,12 @@
 
 package android.net;
 
-import android.annotation.SystemApi;
-
 /**
  * Corresponds to C's {@code struct tcp_repair_window} from
  * include/uapi/linux/tcp.h
  *
  * @hide
  */
-@SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
 public final class TcpRepairWindow {
     public final int sndWl1;
     public final int sndWnd;
diff --git a/packages/Connectivity/framework/src/android/net/TestNetworkManager.java b/packages/Connectivity/framework/src/android/net/TestNetworkManager.java
index a7a6235..9ddd2f5 100644
--- a/packages/Connectivity/framework/src/android/net/TestNetworkManager.java
+++ b/packages/Connectivity/framework/src/android/net/TestNetworkManager.java
@@ -15,8 +15,10 @@
  */
 package android.net;
 
+import android.Manifest;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.os.IBinder;
 import android.os.RemoteException;
@@ -58,6 +60,7 @@
      * @param network The test network that should be torn down
      * @hide
      */
+    @RequiresPermission(Manifest.permission.MANAGE_TEST_NETWORKS)
     @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public void teardownTestNetwork(@NonNull Network network) {
         try {
@@ -103,6 +106,7 @@
      * @param binder A binder object guarding the lifecycle of this test network.
      * @hide
      */
+    @RequiresPermission(Manifest.permission.MANAGE_TEST_NETWORKS)
     @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public void setupTestNetwork(@NonNull String iface, @NonNull IBinder binder) {
         setupTestNetwork(iface, null, true, new int[0], binder);
@@ -145,6 +149,7 @@
      *     TUN interface.
      * @hide
      */
+    @RequiresPermission(Manifest.permission.MANAGE_TEST_NETWORKS)
     @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     @NonNull
     public TestNetworkInterface createTunInterface(@NonNull Collection<LinkAddress> linkAddrs) {
@@ -163,6 +168,7 @@
      *     TAP interface.
      * @hide
      */
+    @RequiresPermission(Manifest.permission.MANAGE_TEST_NETWORKS)
     @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     @NonNull
     public TestNetworkInterface createTapInterface() {
diff --git a/packages/Connectivity/framework/src/android/net/UidRange.java b/packages/Connectivity/framework/src/android/net/UidRange.java
index bc67c74..bd33292 100644
--- a/packages/Connectivity/framework/src/android/net/UidRange.java
+++ b/packages/Connectivity/framework/src/android/net/UidRange.java
@@ -46,8 +46,8 @@
     /** Creates a UidRange for the specified user. */
     public static UidRange createForUser(UserHandle user) {
         final UserHandle nextUser = UserHandle.of(user.getIdentifier() + 1);
-        final int start = UserHandle.getUid(user, 0 /* appId */);
-        final int end = UserHandle.getUid(nextUser, 0) - 1;
+        final int start = user.getUid(0 /* appId */);
+        final int end = nextUser.getUid(0 /* appId */) - 1;
         return new UidRange(start, end);
     }
 
diff --git a/packages/Connectivity/framework/src/android/net/VpnTransportInfo.java b/packages/Connectivity/framework/src/android/net/VpnTransportInfo.java
index cd8f4c0..efd3363 100644
--- a/packages/Connectivity/framework/src/android/net/VpnTransportInfo.java
+++ b/packages/Connectivity/framework/src/android/net/VpnTransportInfo.java
@@ -17,11 +17,15 @@
 package android.net;
 
 import static android.annotation.SystemApi.Client.MODULE_LIBRARIES;
+import static android.net.NetworkCapabilities.REDACT_FOR_NETWORK_SETTINGS;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.annotation.SystemApi;
+import android.net.NetworkCapabilities.RedactionType;
 import android.os.Parcel;
 import android.os.Parcelable;
+import android.text.TextUtils;
 
 import java.util.Objects;
 
@@ -38,8 +42,26 @@
     /** Type of this VPN. */
     public final int type;
 
-    public VpnTransportInfo(int type) {
+    @Nullable
+    public final String sessionId;
+
+    @Override
+    public @RedactionType long getApplicableRedactions() {
+        return REDACT_FOR_NETWORK_SETTINGS;
+    }
+
+    /**
+     * Create a copy of a {@link VpnTransportInfo} with the sessionId redacted if necessary.
+     */
+    @NonNull
+    public VpnTransportInfo makeCopy(@RedactionType long redactions) {
+        return new VpnTransportInfo(type,
+            ((redactions & REDACT_FOR_NETWORK_SETTINGS) != 0) ? null : sessionId);
+    }
+
+    public VpnTransportInfo(int type, @Nullable String sessionId) {
         this.type = type;
+        this.sessionId = sessionId;
     }
 
     @Override
@@ -47,17 +69,17 @@
         if (!(o instanceof VpnTransportInfo)) return false;
 
         VpnTransportInfo that = (VpnTransportInfo) o;
-        return this.type == that.type;
+        return (this.type == that.type) && TextUtils.equals(this.sessionId, that.sessionId);
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(type);
+        return Objects.hash(type, sessionId);
     }
 
     @Override
     public String toString() {
-        return String.format("VpnTransportInfo{type=%d}", type);
+        return String.format("VpnTransportInfo{type=%d, sessionId=%s}", type, sessionId);
     }
 
     @Override
@@ -68,12 +90,13 @@
     @Override
     public void writeToParcel(@NonNull Parcel dest, int flags) {
         dest.writeInt(type);
+        dest.writeString(sessionId);
     }
 
     public static final @NonNull Creator<VpnTransportInfo> CREATOR =
             new Creator<VpnTransportInfo>() {
         public VpnTransportInfo createFromParcel(Parcel in) {
-            return new VpnTransportInfo(in.readInt());
+            return new VpnTransportInfo(in.readInt(), in.readString());
         }
         public VpnTransportInfo[] newArray(int size) {
             return new VpnTransportInfo[size];
diff --git a/packages/SettingsLib/ActionBarShadow/lint-baseline.xml b/packages/SettingsLib/ActionBarShadow/lint-baseline.xml
new file mode 100644
index 0000000..4d5de5f
--- /dev/null
+++ b/packages/SettingsLib/ActionBarShadow/lint-baseline.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.view.View#setOnScrollChangeListener`"
+        errorLine1="            mScrollView.setOnScrollChangeListener(mScrollChangeWatcher);"
+        errorLine2="                        ~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/ActionBarShadow/src/com/android/settingslib/widget/ActionBarShadowController.java"
+            line="81"
+            column="25"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.view.View#setOnScrollChangeListener`"
+        errorLine1="        mScrollView.setOnScrollChangeListener(null);"
+        errorLine2="                    ~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/ActionBarShadow/src/com/android/settingslib/widget/ActionBarShadowController.java"
+            line="88"
+            column="21"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Class requires API level 23 (current min is 21): `android.view.View.OnScrollChangeListener`"
+        errorLine1="    final class ScrollChangeWatcher implements View.OnScrollChangeListener {"
+        errorLine2="                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/ActionBarShadow/src/com/android/settingslib/widget/ActionBarShadowController.java"
+            line="95"
+            column="48"/>
+    </issue>
+
+</issues>
diff --git a/packages/SettingsLib/ActionButtonsPreference/lint-baseline.xml b/packages/SettingsLib/ActionButtonsPreference/lint-baseline.xml
new file mode 100644
index 0000000..a19f7af
--- /dev/null
+++ b/packages/SettingsLib/ActionButtonsPreference/lint-baseline.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="`android:Widget.DeviceDefault.Button.Borderless.Colored` requires API level 28 (current min is 21)"
+        errorLine1="    &lt;style name=&quot;SettingsActionButton&quot; parent=&quot;android:Widget.DeviceDefault.Button.Borderless.Colored&quot;>"
+        errorLine2="                                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/ActionButtonsPreference/res/values/styles.xml"
+            line="19"
+            column="40"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="`android:drawableTint` requires API level 23 (current min is 21)"
+        errorLine1="        &lt;item name=&quot;android:drawableTint&quot;>@*android:color/btn_colored_borderless_text_material&lt;/item>"
+        errorLine2="              ~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/ActionButtonsPreference/res/values/styles.xml"
+            line="21"
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+    </issue>
+
+</issues>
diff --git a/packages/SettingsLib/AdaptiveIcon/lint-baseline.xml b/packages/SettingsLib/AdaptiveIcon/lint-baseline.xml
new file mode 100644
index 0000000..01a0495
--- /dev/null
+++ b/packages/SettingsLib/AdaptiveIcon/lint-baseline.xml
@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.content.res.Resources#getColor`"
+        errorLine1="                                .getColor(colorRes, null /* theme */);"
+        errorLine2="                                 ~~~~~~~~">
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+            file="frameworks/base/packages/SettingsLib/AdaptiveIcon/src/com/android/settingslib/widget/AdaptiveIcon.java"
+            line="75"
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+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.content.Context#getColor`"
+        errorLine1="        setBackgroundColor(context.getColor(R.color.homepage_generic_icon_background));"
+        errorLine2="                                   ~~~~~~~~">
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+            file="frameworks/base/packages/SettingsLib/AdaptiveIcon/src/com/android/settingslib/widget/AdaptiveIcon.java"
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+
+    <issue
+        id="NewApi"
+        message="Class requires API level 23 (current min is 21): `android.graphics.drawable.DrawableWrapper`"
+        errorLine1="public class AdaptiveOutlineDrawable extends DrawableWrapper {"
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+        <location
+            file="frameworks/base/packages/SettingsLib/AdaptiveIcon/src/com/android/settingslib/widget/AdaptiveOutlineDrawable.java"
+            line="46"
+            column="46"/>
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `new android.graphics.drawable.DrawableWrapper`"
+        errorLine1="        super(new AdaptiveIconShapeDrawable(resources));"
+        errorLine2="        ~~~~~">
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+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `new android.graphics.drawable.DrawableWrapper`"
+        errorLine1="        super(new AdaptiveIconShapeDrawable(resources));"
+        errorLine2="        ~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/AdaptiveIcon/src/com/android/settingslib/widget/AdaptiveOutlineDrawable.java"
+            line="74"
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.graphics.drawable.DrawableWrapper#getDrawable`"
+        errorLine1="        getDrawable().setTint(Color.WHITE);"
+        errorLine2="        ~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/AdaptiveIcon/src/com/android/settingslib/widget/AdaptiveOutlineDrawable.java"
+            line="82"
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.content.res.Resources#getColor`"
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+            file="frameworks/base/packages/SettingsLib/AdaptiveIcon/src/com/android/settingslib/widget/AdaptiveOutlineDrawable.java"
+            line="107"
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+</issues>
diff --git a/packages/SettingsLib/BarChartPreference/lint-baseline.xml b/packages/SettingsLib/BarChartPreference/lint-baseline.xml
new file mode 100644
index 0000000..f1043bb
--- /dev/null
+++ b/packages/SettingsLib/BarChartPreference/lint-baseline.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="`@android:style/Widget.DeviceDefault.Button.Borderless.Colored` requires API level 28 (current min is 21)"
+        errorLine1="           parent=&quot;@android:style/Widget.DeviceDefault.Button.Borderless.Colored&quot;>"
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+            line="35"
+            column="12"/>
+    </issue>
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+</issues>
diff --git a/packages/SettingsLib/HelpUtils/lint-baseline.xml b/packages/SettingsLib/HelpUtils/lint-baseline.xml
new file mode 100644
index 0000000..940f027
--- /dev/null
+++ b/packages/SettingsLib/HelpUtils/lint-baseline.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 28 (current min is 21): `android.content.pm.PackageInfo#getLongVersionCode`"
+        errorLine1="                sCachedVersionCode = Long.toString(info.getLongVersionCode());"
+        errorLine2="                                                        ~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/HelpUtils/src/com/android/settingslib/HelpUtils.java"
+            line="239"
+            column="57"/>
+    </issue>
+
+</issues>
diff --git a/packages/SettingsLib/ProgressBar/lint-baseline.xml b/packages/SettingsLib/ProgressBar/lint-baseline.xml
new file mode 100644
index 0000000..03d0f3f
--- /dev/null
+++ b/packages/SettingsLib/ProgressBar/lint-baseline.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="`?android:attr/colorSecondary` requires API level 25 (current min is 21)"
+        errorLine1="        android:background=&quot;?android:attr/colorSecondary&quot; />"
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+            file="frameworks/base/packages/SettingsLib/ProgressBar/res/layout/progress_header.xml"
+            line="27"
+            column="9"/>
+    </issue>
+
+</issues>
diff --git a/packages/SettingsLib/RestrictedLockUtils/lint-baseline.xml b/packages/SettingsLib/RestrictedLockUtils/lint-baseline.xml
new file mode 100644
index 0000000..173c735
--- /dev/null
+++ b/packages/SettingsLib/RestrictedLockUtils/lint-baseline.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.content.Context#getSystemService`"
+        errorLine1="        ComponentName adminComponent = userContext.getSystemService("
+        errorLine2="                                                   ~~~~~~~~~~~~~~~~">
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+            file="frameworks/base/packages/SettingsLib/RestrictedLockUtils/src/com/android/settingslib/RestrictedLockUtils.java"
+            line="59"
+            column="52"/>
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.content.Context#getSystemService`"
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+        errorLine2="                                 ~~~~~~~~~~~~~~~~">
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+            line="101"
+            column="34"/>
+    </issue>
+
+</issues>
diff --git a/packages/SettingsLib/SettingsSpinner/lint-baseline.xml b/packages/SettingsLib/SettingsSpinner/lint-baseline.xml
new file mode 100644
index 0000000..ae1ed38e
--- /dev/null
+++ b/packages/SettingsLib/SettingsSpinner/lint-baseline.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `new android.widget.Spinner`"
+        errorLine1="        super(context, attrs, defStyleAttr, defStyleRes, mode, null);"
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+
+</issues>
diff --git a/packages/SettingsLib/Tile/lint-baseline.xml b/packages/SettingsLib/Tile/lint-baseline.xml
new file mode 100644
index 0000000..2b093dd
--- /dev/null
+++ b/packages/SettingsLib/Tile/lint-baseline.xml
@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `java.lang.Iterable#forEach`"
+        errorLine1="        controllers.forEach(controller -> {"
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+            file="frameworks/base/packages/SettingsLib/Tile/src/com/android/settingslib/drawer/SwitchesProvider.java"
+            line="79"
+            column="21"/>
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.os.Parcel#readBoolean`"
+        errorLine1="        final boolean isProviderTile = in.readBoolean();"
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+            file="frameworks/base/packages/SettingsLib/Tile/src/com/android/settingslib/drawer/Tile.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.os.Parcel#writeBoolean`"
+        errorLine1="        dest.writeBoolean(this instanceof ProviderTile);"
+        errorLine2="             ~~~~~~~~~~~~">
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+            file="frameworks/base/packages/SettingsLib/Tile/src/com/android/settingslib/drawer/Tile.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.graphics.drawable.Icon#createWithResource`"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.graphics.drawable.Icon#setTint`"
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+            file="frameworks/base/packages/SettingsLib/Tile/src/com/android/settingslib/drawer/Tile.java"
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+    <issue
+        id="NewApi"
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+            file="frameworks/base/packages/SettingsLib/Tile/src/com/android/settingslib/drawer/Tile.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.content.Context#getAttributionTag`"
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+</issues>
diff --git a/packages/SettingsLib/Utils/lint-baseline.xml b/packages/SettingsLib/Utils/lint-baseline.xml
new file mode 100644
index 0000000..93cf3cc
--- /dev/null
+++ b/packages/SettingsLib/Utils/lint-baseline.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.content.Context#getSystemService`"
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+            file="frameworks/base/packages/SettingsLib/Utils/src/com/android/settingslib/utils/applications/AppUtils.java"
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+</issues>
diff --git a/packages/SettingsLib/lint-baseline.xml b/packages/SettingsLib/lint-baseline.xml
new file mode 100644
index 0000000..403de43
--- /dev/null
+++ b/packages/SettingsLib/lint-baseline.xml
@@ -0,0 +1,4118 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.content.Context#getSystemService`"
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+    <issue
+        id="NewApi"
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+    <issue
+        id="NewApi"
+        message="Class requires API level 23 (current min is 21): `android.telephony.CarrierConfigManager`"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.telephony.SubscriptionManager#getDefaultDataSubscriptionId`"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.telephony.CarrierConfigManager#getConfigForSubId`"
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+    <issue
+        id="NewApi"
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+        errorLine1="        return config != null &amp;&amp; config.getBoolean("
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+    <issue
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+    <issue
+        id="NewApi"
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+    <issue
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+    <issue
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+    <issue
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level 26 (current min is 21): `android.net.wifi.hotspot2.pps.HomeSp#getFriendlyName`"
+        errorLine1="        mProviderFriendlyName = config.getHomeSp().getFriendlyName();"
+        errorLine2="                                                   ~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
+            line="370"
+            column="52"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.wifi.hotspot2.PasspointConfiguration#getSubscriptionExpirationTimeMillis`"
+        errorLine1="        mSubscriptionExpirationTimeInMillis = config.getSubscriptionExpirationTimeMillis();"
+        errorLine2="                                                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
+            line="371"
+            column="54"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.wifi.hotspot2.PasspointConfiguration#isOsuProvisioned`"
+        errorLine1="        if (config.isOsuProvisioned()) {"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
+            line="372"
+            column="20"/>
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.wifi.WifiConfiguration#getKey`"
+        errorLine1="        mPasspointUniqueId = config.getKey();"
+        errorLine2="                                    ~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+            column="37"/>
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.wifi.WifiManager#calculateSignalLevel`"
+        errorLine1="        int difference = wifiManager.calculateSignalLevel(other.mRssi)"
+        errorLine2="                                     ~~~~~~~~~~~~~~~~~~~~">
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
+            line="470"
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.wifi.WifiManager#calculateSignalLevel`"
+        errorLine1="                - wifiManager.calculateSignalLevel(mRssi);"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+    <issue
+        id="NewApi"
+        message="The type of the for loop iterated value is android.util.ArraySet&lt;android.net.wifi.ScanResult>, which requires API level 23 (current min is 21)"
+        errorLine1="            for (ScanResult result : mScanResults) {"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+    <issue
+        id="NewApi"
+        message="The type of the for loop iterated value is android.util.ArraySet&lt;android.net.wifi.ScanResult>, which requires API level 23 (current min is 21)"
+        errorLine1="                for (ScanResult result : mScanResults) {"
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.net.wifi.WifiConfiguration#isPasspoint`"
+        errorLine1="        if (config.isPasspoint()) {"
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.wifi.WifiConfiguration#getKey`"
+        errorLine1="            return getKey(config.getKey());"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiManager#isWpa3SaeSupported`"
+        errorLine1="            if (otherApSecurity == SECURITY_SAE &amp;&amp; getWifiManager().isWpa3SaeSupported()) {"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
+            line="755"
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiManager#isEnhancedOpenSupported`"
+        errorLine1="            if (otherApSecurity == SECURITY_OWE &amp;&amp; getWifiManager().isEnhancedOpenSupported()) {"
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+            line="768"
+            column="69"/>
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.net.wifi.WifiConfiguration#isPasspoint`"
+        errorLine1="        if (config.isPasspoint()) {"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
+            line="784"
+            column="20"/>
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.wifi.WifiConfiguration#getKey`"
+        errorLine1="            return (isPasspoint() &amp;&amp; config.getKey().equals(mConfig.getKey()));"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
+            line="785"
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.wifi.WifiConfiguration#getKey`"
+        errorLine1="            return (isPasspoint() &amp;&amp; config.getKey().equals(mConfig.getKey()));"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
+            line="785"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiManager#isWpa3SaeSupported`"
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiManager#isEnhancedOpenSupported`"
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.net.wifi.WifiConfiguration#isPasspoint`"
+        errorLine1="        if (!config.isPasspoint() &amp;&amp; !isSameSsidOrBssid(wifiInfo)) {"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
+            line="817"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiManager#isWpa3SaeSupported`"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiManager#isEnhancedOpenSupported`"
+        errorLine1="            if (scanResultSccurity == SECURITY_OWE &amp;&amp; getWifiManager().isEnhancedOpenSupported()) {"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.wifi.WifiManager#calculateSignalLevel`"
+        errorLine1="        return getWifiManager().calculateSignalLevel(mRssi);"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `new android.util.ArraySet`"
+        errorLine1="        Set&lt;ScanResult> allScans = new ArraySet&lt;>();"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+    <issue
+        id="NewApi"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+    <issue
+        id="NewApi"
+        message="Cast from `ArraySet` to `Collection` requires API level 23 (current min is 21)"
+        errorLine1="            allScans.addAll(mScanResults);"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+    <issue
+        id="NewApi"
+        message="Cast from `ArraySet` to `Collection` requires API level 23 (current min is 21)"
+        errorLine1="            allScans.addAll(mExtraScanResults);"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+    <issue
+        id="NewApi"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.net.wifi.WifiConfiguration#isPasspoint`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 23 (current min is 21): `android.net.wifi.WifiConfiguration#providerFriendlyName`"
+        errorLine1="            return mConfig.providerFriendlyName;"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 23 (current min is 21): `android.net.wifi.WifiConfiguration#providerFriendlyName`"
+        errorLine1="            return mConfig.providerFriendlyName;"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.net.wifi.WifiConfiguration#isPasspoint`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 28 (current min is 21): `android.content.Context#getMainExecutor`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiInfo#getPasspointFqdn`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/AccessPoint.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiInfo#getPasspointProviderFriendlyName`"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 23 (current min is 21): `android.net.wifi.WifiConfiguration#providerFriendlyName`"
+        errorLine1="                    mConfig.providerFriendlyName));"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.content.Context#getSystemService`"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.content.Context#getSystemService`"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiManager#isWpa3SaeSupported`"
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+    <issue
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+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiManager#isEnhancedOpenSupported`"
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+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.wifi.hotspot2.PasspointConfiguration#getUniqueId`"
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+        id="NewApi"
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+        id="NewApi"
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+    <issue
+        id="NewApi"
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+    <issue
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+        message="Call requires API level 23 (current min is 21): `android.content.Context#getSystemService`"
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+        id="NewApi"
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+    <issue
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/applications/ApplicationsState.java"
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+        id="NewApi"
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+        id="NewApi"
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+    <issue
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+        errorLine2="                                                          ~~~~~~~~~~~~~~~~~~~~~~~">
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+    <issue
+        id="NewApi"
+        message="Call requires API level 22 (current min is 21): `android.telephony.SubscriptionInfo#getSubscriptionId`"
+        errorLine1="                        subscriptionInfo.getSubscriptionId()).getLine1Number();"
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+    <issue
+        id="NewApi"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/notification/EnableZenModeDialog.java"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.service.notification.Condition#state`"
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+        errorLine2="                                ~~~~~~~~~~~~~~~">
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+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.service.notification.Condition#id`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/notification/EnableZenModeDialog.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.service.notification.Condition#newId`"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `new android.service.notification.Condition`"
+        errorLine1="        return new Condition(foreverId, foreverSummary(mContext), &quot;&quot;, &quot;&quot;, 0 /*icon*/,"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.service.notification.Condition#id`"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.service.notification.Condition#id`"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.service.notification.Condition#id`"
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+    <issue
+        id="NewApi"
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+    <issue
+        id="NewApi"
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+        errorLine2="                                                                   ~~~~~~~~~~~~~~~">
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+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.service.notification.Condition#summary`"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.service.notification.Condition#line2`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/notification/EnableZenModeDialog.java"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.service.notification.Condition#summary`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/notification/EnableZenModeDialog.java"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.service.notification.Condition#summary`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/notification/EnableZenModeDialog.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.app.NotificationManager#getNotificationPolicy`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/notification/EnableZenModeDialog.java"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 23 (current min is 21): `android.app.NotificationManager.Policy#priorityCategories`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/notification/EnableZenModeDialog.java"
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+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.service.notification.Condition#id`"
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+        errorLine2="                                                                         ~~~~~~~~~~~~">
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/notification/EnableZenModeDialog.java"
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+    <issue
+        id="NewApi"
+        message="Class requires API level 29 (current min is 21): `android.bluetooth.BluetoothHearingAid`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/bluetooth/HearingAidProfile.java"
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+    <issue
+        id="NewApi"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/bluetooth/HearingAidProfile.java"
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+    <issue
+        id="NewApi"
+        message="Class requires API level 28 (current min is 21): `android.bluetooth.BluetoothHidDevice`"
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+    <issue
+        id="NewApi"
+        message="Cast from `BluetoothHidDevice` to `BluetoothProfile` requires API level 28 (current min is 21)"
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+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.graphics.drawable.Icon#loadDrawable`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/utils/IconCache.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.media.MediaRoute2Info#getName`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/media/InfoMediaDevice.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.media.MediaRoute2Info#getClientPackageName`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/media/InfoMediaDevice.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.media.MediaRoute2Info#getFeatures`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/media/InfoMediaDevice.java"
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+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.media.MediaRoute2Info#getId`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/media/InfoMediaManager.java"
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+    <issue
+        id="NewApi"
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+    <issue
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+    <issue
+        id="NewApi"
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+    <issue
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+        message="Call requires API level R (current min is 21): `android.media.RoutingSessionInfo#getVolumeMax`"
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+    <issue
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+        message="Call requires API level R (current min is 21): `android.media.MediaRoute2Info#getVolume`"
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+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/WifiTracker.java"
+            line="220"
+            column="25"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `android.content.Context#getSystemService`"
+        errorLine1="                context.getSystemService(NetworkScoreManager.class),"
+        errorLine2="                        ~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/WifiTracker.java"
+            line="221"
+            column="25"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.NetworkRequest.Builder#clearCapabilities`"
+        errorLine1="                .clearCapabilities()"
+        errorLine2="                 ~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/WifiTracker.java"
+            line="243"
+            column="18"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 26 (current min is 21): `android.net.ConnectivityManager#registerNetworkCallback`"
+        errorLine1="            mConnectivityManager.registerNetworkCallback("
+        errorLine2="                                 ~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/WifiTracker.java"
+            line="348"
+            column="34"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 23 (current min is 21): `new android.util.ArraySet`"
+        errorLine1="        Set&lt;String> seenFQDNs = new ArraySet&lt;>();"
+        errorLine2="                                ~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/WifiTracker.java"
+            line="688"
+            column="33"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Cast from `ArraySet` to `Set` requires API level 23 (current min is 21)"
+        errorLine1="        Set&lt;String> seenFQDNs = new ArraySet&lt;>();"
+        errorLine2="                                ~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/WifiTracker.java"
+            line="688"
+            column="33"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiManager#isEnhancedOpenSupported`"
+        errorLine1="        final boolean isOweSupported = mWifiManager.isEnhancedOpenSupported();"
+        errorLine2="                                                    ~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/WifiTracker.java"
+            line="1116"
+            column="53"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiManager#isWpa3SaeSupported`"
+        errorLine1="        final boolean isSaeSupported = mWifiManager.isWpa3SaeSupported();"
+        errorLine2="                                                    ~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/WifiTracker.java"
+            line="1117"
+            column="53"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 21): `android.net.wifi.WifiManager#isWpa3SuiteBSupported`"
+        errorLine1="        final boolean isSuiteBSupported = mWifiManager.isWpa3SuiteBSupported();"
+        errorLine2="                                                       ~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/WifiTracker.java"
+            line="1118"
+            column="56"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 21): `android.net.wifi.WifiInfo#getWifiStandard`"
+        errorLine1="            visibility.append(&quot; standard = &quot;).append(info.getWifiStandard());"
+        errorLine2="                                                          ~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/wifi/WifiUtils.java"
+            line="103"
+            column="59"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.service.notification.Condition#line1`"
+        errorLine1="                radioContentText = condition.line1;"
+        errorLine2="                                   ~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/notification/ZenDurationDialog.java"
+            line="285"
+            column="36"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 22 (current min is 21): `android.view.View#setAccessibilityTraversalAfter`"
+        errorLine1="                radio.setAccessibilityTraversalAfter(lastView.getId());"
+        errorLine2="                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/notification/ZenRadioLayout.java"
+            line="54"
+            column="23"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 22 (current min is 21): `android.view.View#setAccessibilityTraversalAfter`"
+        errorLine1="            if (contentClick != null) contentClick.setAccessibilityTraversalAfter(radio.getId());"
+        errorLine2="                                                   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/notification/ZenRadioLayout.java"
+            line="57"
+            column="52"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.icu.text.TimeZoneFormat#getInstance`"
+        errorLine1="        TimeZoneFormat tzFormatter = TimeZoneFormat.getInstance(locale);"
+        errorLine2="                                                    ~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="99"
+            column="53"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.icu.text.TimeZoneNames#getInstance`"
+        errorLine1="        TimeZoneNames timeZoneNames = TimeZoneNames.getInstance(locale);"
+        errorLine2="                                                    ~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="101"
+            column="53"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.icu.text.TimeZoneNames#getInstance`"
+        errorLine1="        final TimeZoneNames timeZoneNames = TimeZoneNames.getInstance(locale);"
+        errorLine2="                                                          ~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="114"
+            column="59"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.icu.util.TimeZone#getCanonicalID`"
+        errorLine1="            String canonicalZoneId = android.icu.util.TimeZone.getCanonicalID(tz.getID());"
+        errorLine2="                                                               ~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="222"
+            column="64"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.icu.text.TimeZoneNames#getExemplarLocationName`"
+        errorLine1="            displayName = timeZoneNames.getExemplarLocationName(canonicalZoneId);"
+        errorLine2="                                        ~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="226"
+            column="41"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.icu.text.TimeZoneNames.NameType#LONG_DAYLIGHT`"
+        errorLine1="                tz.inDaylightTime(now) ? TimeZoneNames.NameType.LONG_DAYLIGHT"
+        errorLine2="                                         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="242"
+            column="42"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.icu.text.TimeZoneNames.NameType#LONG_STANDARD`"
+        errorLine1="                        : TimeZoneNames.NameType.LONG_STANDARD;"
+        errorLine2="                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="243"
+            column="27"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.icu.text.TimeZoneNames#getDisplayName`"
+        errorLine1="        return names.getDisplayName(getCanonicalZoneId(tz), nameType, now.getTime());"
+        errorLine2="                     ~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="244"
+            column="22"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.icu.util.TimeZone#getCanonicalID`"
+        errorLine1="        final String canonicalId = android.icu.util.TimeZone.getCanonicalID(id);"
+        errorLine2="                                                             ~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="249"
+            column="62"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.icu.text.TimeZoneFormat#getGMTPattern`"
+        errorLine1="        final String gmtPattern = tzFormatter.getGMTPattern();"
+        errorLine2="                                              ~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="290"
+            column="47"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.icu.text.TimeZoneFormat.GMTOffsetPatternType#NEGATIVE_HM`"
+        errorLine1="            patternType = TimeZoneFormat.GMTOffsetPatternType.NEGATIVE_HM;"
+        errorLine2="                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="312"
+            column="27"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 24 (current min is 21): `android.icu.text.TimeZoneFormat.GMTOffsetPatternType#POSITIVE_HM`"
+        errorLine1="            patternType = TimeZoneFormat.GMTOffsetPatternType.POSITIVE_HM;"
+        errorLine2="                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="314"
+            column="27"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.icu.text.TimeZoneFormat#getGMTOffsetPattern`"
+        errorLine1="        final String gmtOffsetPattern = tzFormatter.getGMTOffsetPattern(patternType);"
+        errorLine2="                                                    ~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="316"
+            column="53"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.icu.text.TimeZoneFormat#getGMTOffsetDigits`"
+        errorLine1="        final String localizedDigits = tzFormatter.getGMTOffsetDigits();"
+        errorLine2="                                                   ~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="317"
+            column="52"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 24 (current min is 21): `android.icu.text.TimeZoneFormat#getInstance`"
+        errorLine1="            final TimeZoneFormat tzFormatter = TimeZoneFormat.getInstance(locale);"
+        errorLine2="                                                              ~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/src/com/android/settingslib/datetime/ZoneGetter.java"
+            line="377"
+            column="63"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="`?android:attr/colorError` requires API level 26 (current min is 21)"
+        errorLine1="    &lt;item android:color=&quot;?android:attr/colorError&quot; />"
+        errorLine2="          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/res/color/batterymeter_plus_color.xml"
+            line="17"
+            column="11"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="`@android:id/switch_widget` requires API level 24 (current min is 21)"
+        errorLine1="        android:id=&quot;@android:id/switch_widget&quot;"
+        errorLine2="        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/res/layout/restricted_switch_widget.xml"
+            line="26"
+            column="9"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="`?android:attr/dialogPreferredPadding` requires API level 22 (current min is 21)"
+        errorLine1="        android:paddingStart=&quot;?android:attr/dialogPreferredPadding&quot;"
+        errorLine2="        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/res/layout/settings_dialog_title.xml"
+            line="30"
+            column="9"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="`?android:attr/dialogPreferredPadding` requires API level 22 (current min is 21)"
+        errorLine1="        android:paddingEnd=&quot;?android:attr/dialogPreferredPadding&quot;"
+        errorLine2="        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/res/layout/settings_dialog_title.xml"
+            line="31"
+            column="9"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="`?android:attr/colorError` requires API level 26 (current min is 21)"
+        errorLine1="            android:textColor=&quot;?android:attr/colorError&quot;/>"
+        errorLine2="            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SettingsLib/res/layout/zen_mode_turn_on_dialog_container.xml"
+            line="58"
+            column="13"/>
+    </issue>
+
+</issues>
diff --git a/packages/SettingsLib/src/com/android/settingslib/wifi/WifiStatusTracker.java b/packages/SettingsLib/src/com/android/settingslib/wifi/WifiStatusTracker.java
index c57d4ad..cbb5105 100644
--- a/packages/SettingsLib/src/com/android/settingslib/wifi/WifiStatusTracker.java
+++ b/packages/SettingsLib/src/com/android/settingslib/wifi/WifiStatusTracker.java
@@ -66,31 +66,40 @@
         @Override
         public void onCapabilitiesChanged(
                 Network network, NetworkCapabilities networkCapabilities) {
+            WifiInfo wifiInfo = (WifiInfo) networkCapabilities.getTransportInfo();
+            updateWifiInfo(wifiInfo);
+            updateStatusLabel();
+            mCallback.run();
+        }
+
+        @Override
+        public void onLost(Network network) {
+            updateWifiInfo(null);
             updateStatusLabel();
             mCallback.run();
         }
     };
     private final NetworkCallback mDefaultNetworkCallback = new NetworkCallback() {
-                @Override
-                public void onCapabilitiesChanged(Network network, NetworkCapabilities nc) {
-                    // network is now the default network, and its capabilities are nc.
-                    // This method will always be called immediately after the network becomes the
-                    // default, in addition to any time the capabilities change while the network is
-                    // the default.
-                    mDefaultNetwork = network;
-                    mDefaultNetworkCapabilities = nc;
-                    updateStatusLabel();
-                    mCallback.run();
-                }
-                @Override
-                public void onLost(Network network) {
-                    // The system no longer has a default network.
-                    mDefaultNetwork = null;
-                    mDefaultNetworkCapabilities = null;
-                    updateStatusLabel();
-                    mCallback.run();
-                }
-            };
+        @Override
+        public void onCapabilitiesChanged(Network network, NetworkCapabilities nc) {
+            // network is now the default network, and its capabilities are nc.
+            // This method will always be called immediately after the network becomes the
+            // default, in addition to any time the capabilities change while the network is
+            // the default.
+            mDefaultNetwork = network;
+            mDefaultNetworkCapabilities = nc;
+            updateStatusLabel();
+            mCallback.run();
+        }
+        @Override
+        public void onLost(Network network) {
+            // The system no longer has a default network.
+            mDefaultNetwork = null;
+            mDefaultNetworkCapabilities = null;
+            updateStatusLabel();
+            mCallback.run();
+        }
+    };
     private Network mDefaultNetwork = null;
     private NetworkCapabilities mDefaultNetworkCapabilities = null;
     private final Runnable mCallback;
@@ -170,32 +179,22 @@
         String action = intent.getAction();
         if (action.equals(WifiManager.WIFI_STATE_CHANGED_ACTION)) {
             updateWifiState();
-        } else if (action.equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) {
-            updateWifiState();
-            final NetworkInfo networkInfo =
-                    intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
-            connected = networkInfo != null && networkInfo.isConnected();
-            mWifiInfo = null;
-            ssid = null;
-            if (connected) {
-                mWifiInfo = mWifiManager.getConnectionInfo();
-                if (mWifiInfo != null) {
-                    if (mWifiInfo.isPasspointAp() || mWifiInfo.isOsuAp()) {
-                        ssid = mWifiInfo.getPasspointProviderFriendlyName();
-                    } else {
-                        ssid = getValidSsid(mWifiInfo);
-                    }
-                    updateRssi(mWifiInfo.getRssi());
-                    maybeRequestNetworkScore();
-                }
+        }
+    }
+
+    private void updateWifiInfo(WifiInfo wifiInfo) {
+        updateWifiState();
+        connected = wifiInfo != null;
+        mWifiInfo = wifiInfo;
+        ssid = null;
+        if (mWifiInfo != null) {
+            if (mWifiInfo.isPasspointAp() || mWifiInfo.isOsuAp()) {
+                ssid = mWifiInfo.getPasspointProviderFriendlyName();
+            } else {
+                ssid = getValidSsid(mWifiInfo);
             }
-            updateStatusLabel();
-            mCallback.run();
-        } else if (action.equals(WifiManager.RSSI_CHANGED_ACTION)) {
-            // Default to -200 as its below WifiManager.MIN_RSSI.
-            updateRssi(intent.getIntExtra(WifiManager.EXTRA_NEW_RSSI, -200));
-            updateStatusLabel();
-            mCallback.run();
+            updateRssi(mWifiInfo.getRssi());
+            maybeRequestNetworkScore();
         }
     }
 
diff --git a/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java b/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java
index cb610fc..bcde584 100644
--- a/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java
+++ b/packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java
@@ -89,7 +89,7 @@
                         return value == null || value.length() < MAX_LENGTH;
                     }
                 });
-        VALIDATORS.put(System.FONT_SCALE, new InclusiveFloatRangeValidator(0.85f, 1.3f));
+        VALIDATORS.put(System.FONT_SCALE, new InclusiveFloatRangeValidator(0.25f, 5.0f));
         VALIDATORS.put(System.DIM_SCREEN, BOOLEAN_VALIDATOR);
         VALIDATORS.put(
                 System.DISPLAY_COLOR_MODE,
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index 904148f..9a3b76f 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -39,6 +39,75 @@
     <uses-permission android:name="android.permission.WRITE_USER_DICTIONARY" />
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission android:name="android.permission.RECEIVE_SMS" />
+    <uses-permission android:name="android.permission.RECEIVE_WAP_PUSH" />
+    <uses-permission android:name="android.permission.RECEIVE_MMS" />
+    <uses-permission android:name="android.permission.READ_CELL_BROADCASTS" />
+    <uses-permission android:name="android.permission.ACCESS_MEDIA_LOCATION" />
+    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
+    <uses-permission android:name="android.permission.READ_PHONE_NUMBERS" />
+    <uses-permission android:name="android.permission.USE_SIP" />
+    <uses-permission android:name="android.permission.ANSWER_PHONE_CALLS" />
+    <uses-permission android:name="android.permission.ACCEPT_HANDOVER" />
+    <uses-permission android:name="android.permission.ACTIVITY_RECOGNITION" />
+    <uses-permission android:name="android.permission.BODY_SENSORS" />
+    <uses-permission android:name="com.android.voicemail.permission.ADD_VOICEMAIL" />
+    <uses-permission android:name="android.permission.WRITE_EMBEDDED_SUBSCRIPTIONS" />
+    <uses-permission android:name="android.permission.GET_PROCESS_STATE_AND_OOM_SCORE" />
+    <uses-permission android:name="android.permission.READ_LOGS" />
+    <uses-permission android:name="android.permission.BRIGHTNESS_SLIDER_USAGE" />
+    <uses-permission android:name="android.permission.ACCESS_AMBIENT_LIGHT_STATS" />
+    <uses-permission android:name="android.permission.CONFIGURE_DISPLAY_BRIGHTNESS" />
+    <uses-permission android:name="android.permission.SET_VOLUME_KEY_LONG_PRESS_LISTENER" />
+    <uses-permission android:name="android.permission.SET_MEDIA_KEY_LISTENER" />
+    <uses-permission android:name="android.permission.INSTANT_APP_FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.MANAGE_OWN_CALLS" />
+    <uses-permission android:name="android.permission.CALL_COMPANION_APP" />
+    <uses-permission android:name="android.permission.USE_FINGERPRINT" />
+    <uses-permission android:name="android.permission.READ_PROFILE" />
+    <uses-permission android:name="android.permission.WRITE_PROFILE" />
+    <uses-permission android:name="android.permission.READ_SOCIAL_STREAM" />
+    <uses-permission android:name="android.permission.WRITE_SOCIAL_STREAM" />
+    <uses-permission android:name="android.permission.WRITE_SMS" />
+    <uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />
+    <uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
+    <uses-permission android:name="android.permission.USE_CREDENTIALS" />
+    <uses-permission android:name="android.permission.SUBSCRIBED_FEEDS_READ" />
+    <uses-permission android:name="android.permission.SUBSCRIBED_FEEDS_WRITE" />
+    <uses-permission android:name="android.permission.FLASHLIGHT" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.NFC" />
+    <uses-permission android:name="android.permission.NFC_TRANSACTION_EVENT" />
+    <uses-permission android:name="android.permission.NFC_PREFERRED_PAYMENT_INFO" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
+    <uses-permission android:name="android.permission.TRANSMIT_IR" />
+    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
+    <uses-permission android:name="android.permission.REQUEST_PASSWORD_COMPLEXITY" />
+    <uses-permission android:name="android.permission.GET_TASKS" />
+    <uses-permission android:name="android.permission.RESTART_PACKAGES" />
+    <uses-permission android:name="android.permission.REQUEST_COMPANION_RUN_IN_BACKGROUND" />
+    <uses-permission android:name="android.permission.REQUEST_COMPANION_USE_DATA_IN_BACKGROUND" />
+    <uses-permission android:name="android.permission.REQUEST_COMPANION_PROFILE_WATCH" />
+    <uses-permission android:name="android.permission.HIDE_OVERLAY_WINDOWS" />
+    <uses-permission android:name="android.permission.SET_WALLPAPER_HINTS" />
+    <uses-permission android:name="android.permission.READ_SYNC_SETTINGS" />
+    <uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
+    <uses-permission android:name="android.permission.READ_SYNC_STATS" />
+    <uses-permission android:name="com.android.browser.permission.READ_HISTORY_BOOKMARKS" />
+    <uses-permission android:name="com.android.browser.permission.WRITE_HISTORY_BOOKMARKS" />
+    <uses-permission android:name="com.android.alarm.permission.SET_ALARM" />
+    <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
+    <uses-permission android:name="com.android.launcher.permission.UNINSTALL_SHORTCUT" />
+    <uses-permission android:name="android.permission.PERSISTENT_ACTIVITY" />
+    <uses-permission android:name="android.permission.GET_PACKAGE_SIZE" />
+    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" />
+    <uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES" />
+    <uses-permission android:name="android.permission.REQUEST_OBSERVE_COMPANION_DEVICE_PRESENCE" />
+    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
+    <uses-permission android:name="android.permission.ACCESS_NOTIFICATION_POLICY" />
+    <uses-permission android:name="android.permission.READ_INSTALL_SESSIONS" />
+    <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT" />
     <!-- ACCESS_BACKGROUND_LOCATION is needed for testing purposes only. -->
     <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
@@ -251,10 +320,11 @@
     <!-- permissions required for CTS test - PhoneStateListenerTest -->
     <uses-permission android:name="android.permission.LISTEN_ALWAYS_REPORTED_SIGNAL_STRENGTH" />
 
-    <!-- Permissions required for ganting and logging -->
+    <!-- Permissions required for granting and logging -->
     <uses-permission android:name="android.permission.LOG_COMPAT_CHANGE"/>
     <uses-permission android:name="android.permission.READ_COMPAT_CHANGE_CONFIG"/>
     <uses-permission android:name="android.permission.OVERRIDE_COMPAT_CHANGE_CONFIG"/>
+    <uses-permission android:name="android.permission.OVERRIDE_COMPAT_CHANGE_CONFIG_ON_RELEASE_BUILD"/>
 
     <!-- Permission required for CTS test - BatterySaverTest -->
     <uses-permission android:name="android.permission.MODIFY_DAY_NIGHT_MODE"/>
@@ -359,6 +429,9 @@
     <!-- Permission needed for CTS test - CtsHdmiCecHostTestCases -->
     <uses-permission android:name="android.permission.HDMI_CEC" />
 
+    <!-- Permission needed for CTS test - MediaPlayerTest -->
+    <uses-permission android:name="android.permission.BIND_IMS_SERVICE" />
+
     <!-- Permission needed for CTS test - WifiManagerTest -->
     <uses-permission android:name="android.permission.WIFI_ACCESS_COEX_UNSAFE_CHANNELS" />
     <uses-permission android:name="android.permission.WIFI_UPDATE_COEX_UNSAFE_CHANNELS" />
@@ -383,6 +456,9 @@
     <!-- Permission required for CTS test - CtsAlarmManagerTestCases -->
     <uses-permission android:name="android.permission.SCHEDULE_PRIORITIZED_ALARM" />
 
+    <!-- Permission required for CTS test - CtsUwbTestCases -->
+    <uses-permission android:name="android.permission.UWB_PRIVILEGED" />
+
     <application android:label="@string/app_label"
                 android:theme="@android:style/Theme.DeviceDefault.DayNight"
                 android:defaultToDeviceProtectedStorage="true"
diff --git a/packages/Shell/TEST_MAPPING b/packages/Shell/TEST_MAPPING
index a149b5c..9bb1b4b 100644
--- a/packages/Shell/TEST_MAPPING
+++ b/packages/Shell/TEST_MAPPING
@@ -18,6 +18,20 @@
           "exclude-annotation": "androidx.test.filters.FlakyTest"
         }
       ]
+    },
+    {
+      "name": "CtsUiAutomationTestCases",
+      "options": [
+        {
+          "include-filter": "android.app.uiautomation.cts.UiAutomationTest#testAdoptAllShellPermissions"
+        },
+        {
+          "include-filter": "android.app.uiautomation.cts.UiAutomationTest#testAdoptSomeShellPermissions"
+        },
+        {
+          "exclude-annotation": "androidx.test.filters.FlakyTest"
+        }
+      ]
     }
   ],
   "postsubmit": [
diff --git a/packages/SystemUI/shared/lint-baseline.xml b/packages/SystemUI/shared/lint-baseline.xml
new file mode 100644
index 0000000..8021fbf
--- /dev/null
+++ b/packages/SystemUI/shared/lint-baseline.xml
@@ -0,0 +1,367 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<issues format="5" by="lint 4.1.0" client="cli" variant="all" version="4.1.0">
+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 26): `android.os.RemoteException#rethrowFromSystemServer`"
+        errorLine1="            throw e.rethrowFromSystemServer();"
+        errorLine2="                    ~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/ActivityManagerWrapper.java"
+            line="109"
+            column="21"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.graphics.Bitmap#wrapHardwareBuffer`"
+        errorLine1="        return Bitmap.wrapHardwareBuffer(Objects.requireNonNull(buffer), colorSpace);"
+        errorLine2="                      ~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/recents/utilities/BitmapUtil.java"
+            line="84"
+            column="23"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `new android.util.ArraySet`"
+        errorLine1="        mPluginActions = new ArraySet&lt;>(mSharedPrefs.getStringSet(PLUGIN_ACTIONS, null));"
+        errorLine2="                         ~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/plugins/PluginPrefs.java"
+            line="41"
+            column="26"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `new android.util.ArraySet`"
+        errorLine1="        return new ArraySet&lt;>(mPluginActions);"
+        errorLine2="               ~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/plugins/PluginPrefs.java"
+            line="45"
+            column="16"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 28 (current min is 26): `android.graphics.Bitmap#createBitmap`"
+        errorLine1="        return Bitmap.createBitmap(picture);"
+        errorLine2="                      ~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/recents/view/RecentsTransition.java"
+            line="113"
+            column="23"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceControl#release`"
+        errorLine1="        leash.mSurfaceControl.release();"
+        errorLine2="                              ~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/RemoteAnimationTargetCompat.java"
+            line="86"
+            column="31"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceControl#release`"
+        errorLine1="            mStartLeash.release();"
+        errorLine2="                        ~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/RemoteAnimationTargetCompat.java"
+            line="88"
+            column="25"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceControl#isValid`"
+        errorLine1="        return mSurfaceControl != null &amp;&amp; mSurfaceControl.isValid();"
+        errorLine2="                                                          ~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceControlCompat.java"
+            line="41"
+            column="59"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 26): `android.view.SurfaceControlViewHost#release`"
+        errorLine1="            mSurfaceControlViewHost.release();"
+        errorLine2="                                    ~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestReceiver.java"
+            line="61"
+            column="37"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level R (current min is 26): `android.view.SurfaceView#getHostToken`"
+        errorLine1="        bundle.putBinder(KEY_HOST_TOKEN, surfaceView.getHostToken());"
+        errorLine2="                                                     ~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestUtils.java"
+            line="34"
+            column="54"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceView#getSurfaceControl`"
+        errorLine1="        bundle.putParcelable(KEY_SURFACE_CONTROL, surfaceView.getSurfaceControl());"
+        errorLine2="                                                              ~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestUtils.java"
+            line="35"
+            column="63"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Cast from `SurfaceControl` to `Parcelable` requires API level 29 (current min is 26)"
+        errorLine1="        bundle.putParcelable(KEY_SURFACE_CONTROL, surfaceView.getSurfaceControl());"
+        errorLine2="                                                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/SurfaceViewRequestUtils.java"
+            line="35"
+            column="51"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceControl#isValid`"
+        errorLine1="                if (mBarrierSurfaceControl == null || !mBarrierSurfaceControl.isValid()) {"
+        errorLine2="                                                                              ~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/SyncRtSurfaceTransactionApplierCompat.java"
+            line="106"
+            column="79"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `new android.view.SurfaceControl.Transaction`"
+        errorLine1="                Transaction t = new Transaction();"
+        errorLine2="                                ~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/SyncRtSurfaceTransactionApplierCompat.java"
+            line="112"
+            column="33"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceControl.Transaction#apply`"
+        errorLine1="                t.apply();"
+        errorLine2="                  ~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/SyncRtSurfaceTransactionApplierCompat.java"
+            line="119"
+            column="19"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceControl.Transaction#setAlpha`"
+        errorLine1="                t.setAlpha(surface, alpha);"
+        errorLine2="                  ~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/SyncRtSurfaceTransactionApplierCompat.java"
+            line="361"
+            column="19"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceControl.Transaction#setLayer`"
+        errorLine1="                t.setLayer(surface, layer);"
+        errorLine2="                  ~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/SyncRtSurfaceTransactionApplierCompat.java"
+            line="364"
+            column="19"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 29 (current min is 26): `android.app.TaskInfo#origActivity`"
+        errorLine1="            ComponentName sourceComponent = t.origActivity != null"
+        errorLine2="                                            ~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/recents/model/Task.java"
+            line="84"
+            column="45"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 29 (current min is 26): `android.app.TaskInfo#origActivity`"
+        errorLine1="                    ? t.origActivity"
+        errorLine2="                      ~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/recents/model/Task.java"
+            line="86"
+            column="23"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 29 (current min is 26): `android.app.TaskInfo#taskId`"
+        errorLine1="            this.id = t.taskId;"
+        errorLine2="                      ~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/recents/model/Task.java"
+            line="89"
+            column="23"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 29 (current min is 26): `android.app.TaskInfo#baseIntent`"
+        errorLine1="            this.baseIntent = t.baseIntent;"
+        errorLine2="                              ~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/recents/model/Task.java"
+            line="91"
+            column="31"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 29 (current min is 26): `android.app.TaskInfo#taskDescription`"
+        errorLine1="        ActivityManager.TaskDescription td = taskInfo.taskDescription;"
+        errorLine2="                                             ~~~~~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/recents/model/Task.java"
+            line="280"
+            column="46"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 29 (current min is 26): `android.app.TaskInfo#topActivity`"
+        errorLine1="                taskInfo.supportsSplitScreenMultiWindow, isLocked, td, taskInfo.topActivity);"
+        errorLine2="                                                                       ~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/recents/model/Task.java"
+            line="284"
+            column="72"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 29 (current min is 26): `android.app.TaskInfo#topActivity`"
+        errorLine1="        return info.topActivity;"
+        errorLine2="               ~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskInfoCompat.java"
+            line="42"
+            column="16"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 29 (current min is 26): `android.app.TaskInfo#taskDescription`"
+        errorLine1="        return info.taskDescription;"
+        errorLine2="               ~~~~~~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskInfoCompat.java"
+            line="46"
+            column="16"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Field requires API level 29 (current min is 26): `android.app.ActivityManager.RunningTaskInfo#taskId`"
+        errorLine1="        onTaskMovedToFront(taskInfo.taskId);"
+        errorLine2="                           ~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskStackChangeListener.java"
+            line="86"
+            column="28"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `new android.view.SurfaceControl.Transaction`"
+        errorLine1="        mTransaction = new Transaction();"
+        errorLine2="                       ~~~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/TransactionCompat.java"
+            line="31"
+            column="24"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceControl.Transaction#apply`"
+        errorLine1="        mTransaction.apply();"
+        errorLine2="                     ~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/TransactionCompat.java"
+            line="35"
+            column="22"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceControl.Transaction#setBufferSize`"
+        errorLine1="        mTransaction.setBufferSize(surfaceControl.mSurfaceControl, w, h);"
+        errorLine2="                     ~~~~~~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/TransactionCompat.java"
+            line="54"
+            column="22"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceControl.Transaction#setLayer`"
+        errorLine1="        mTransaction.setLayer(surfaceControl.mSurfaceControl, z);"
+        errorLine2="                     ~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/TransactionCompat.java"
+            line="59"
+            column="22"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.view.SurfaceControl.Transaction#setAlpha`"
+        errorLine1="        mTransaction.setAlpha(surfaceControl.mSurfaceControl, alpha);"
+        errorLine2="                     ~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/TransactionCompat.java"
+            line="64"
+            column="22"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Call requires API level 29 (current min is 26): `android.content.res.Resources#getFloat`"
+        errorLine1="                .getFloat(Resources.getSystem().getIdentifier("
+        errorLine2="                 ~~~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/WallpaperManagerCompat.java"
+            line="46"
+            column="18"/>
+    </issue>
+
+    <issue
+        id="NewApi"
+        message="Cast from `RecordingCanvas` to `Canvas` requires API level 29 (current min is 26)"
+        errorLine1="            WindowCallbacksCompat.this.onPostDraw(canvas);"
+        errorLine2="                                                  ~~~~~~">
+        <location
+            file="frameworks/base/packages/SystemUI/shared/src/com/android/systemui/shared/system/WindowCallbacksCompat.java"
+            line="59"
+            column="51"/>
+    </issue>
+
+</issues>
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
index df00a4f..7e3ffde 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/NetworkControllerImpl.java
@@ -344,8 +344,6 @@
 
         // broadcasts
         IntentFilter filter = new IntentFilter();
-        filter.addAction(WifiManager.RSSI_CHANGED_ACTION);
-        filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);
         filter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
         filter.addAction(Intent.ACTION_SIM_STATE_CHANGED);
         filter.addAction(TelephonyManager.ACTION_DEFAULT_DATA_SUBSCRIPTION_CHANGED);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/WifiSignalController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/WifiSignalController.java
index 4ae9665..3c0b07a 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/WifiSignalController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/WifiSignalController.java
@@ -101,11 +101,7 @@
                 wifiDesc, mCurrentState.isTransient, mCurrentState.statusLabel);
     }
 
-    /**
-     * Fetches wifi initial state replacing the initial sticky broadcast.
-     */
-    public void fetchInitialState() {
-        mWifiTracker.fetchInitialState();
+    private void copyWifiStates() {
         mCurrentState.enabled = mWifiTracker.enabled;
         mCurrentState.isDefault = mWifiTracker.isDefaultNetwork;
         mCurrentState.connected = mWifiTracker.connected;
@@ -113,6 +109,14 @@
         mCurrentState.rssi = mWifiTracker.rssi;
         mCurrentState.level = mWifiTracker.level;
         mCurrentState.statusLabel = mWifiTracker.statusLabel;
+    }
+
+    /**
+     * Fetches wifi initial state replacing the initial sticky broadcast.
+     */
+    public void fetchInitialState() {
+        mWifiTracker.fetchInitialState();
+        copyWifiStates();
         notifyListenersIfNecessary();
     }
 
@@ -121,19 +125,12 @@
      */
     public void handleBroadcast(Intent intent) {
         mWifiTracker.handleBroadcast(intent);
-        mCurrentState.enabled = mWifiTracker.enabled;
-        mCurrentState.isDefault = mWifiTracker.isDefaultNetwork;
-        mCurrentState.connected = mWifiTracker.connected;
-        mCurrentState.ssid = mWifiTracker.ssid;
-        mCurrentState.rssi = mWifiTracker.rssi;
-        mCurrentState.level = mWifiTracker.level;
-        mCurrentState.statusLabel = mWifiTracker.statusLabel;
+        copyWifiStates();
         notifyListenersIfNecessary();
     }
 
     private void handleStatusUpdated() {
-        mCurrentState.statusLabel = mWifiTracker.statusLabel;
-        mCurrentState.isDefault = mWifiTracker.isDefaultNetwork;
+        copyWifiStates();
         notifyListenersIfNecessary();
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java
index 3a84e31..0dfcf7a 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerBaseTest.java
@@ -40,7 +40,9 @@
 import android.net.ConnectivityManager;
 import android.net.Network;
 import android.net.NetworkCapabilities;
+import android.net.NetworkRequest;
 import android.net.NetworkScoreManager;
+import android.net.wifi.WifiInfo;
 import android.net.wifi.WifiManager;
 import android.os.Handler;
 import android.provider.Settings;
@@ -51,7 +53,6 @@
 import android.telephony.SignalStrength;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
-import android.telephony.TelephonyCallback;
 import android.telephony.TelephonyDisplayInfo;
 import android.telephony.TelephonyManager;
 import android.testing.TestableLooper;
@@ -115,6 +116,7 @@
     protected int mSubId;
 
     private NetworkCapabilities mNetCapabilities;
+    private ConnectivityManager.NetworkCallback mDefaultNetworkCallback;
     private ConnectivityManager.NetworkCallback mNetworkCallback;
 
     @Rule
@@ -214,6 +216,10 @@
             ArgumentCaptor.forClass(ConnectivityManager.NetworkCallback.class);
         verify(mMockCm, atLeastOnce())
             .registerDefaultNetworkCallback(callbackArg.capture(), isA(Handler.class));
+        mDefaultNetworkCallback = callbackArg.getValue();
+        assertNotNull(mDefaultNetworkCallback);
+        verify(mMockCm, atLeastOnce()).registerNetworkCallback(
+                isA(NetworkRequest.class), callbackArg.capture(), isA(Handler.class));
         mNetworkCallback = callbackArg.getValue();
         assertNotNull(mNetworkCallback);
     }
@@ -270,10 +276,19 @@
     }
 
     public void setConnectivityViaCallback(
-        int networkType, boolean validated, boolean isConnected){
+            int networkType, boolean validated, boolean isConnected, WifiInfo wifiInfo) {
+        mNetCapabilities.setTransportInfo(wifiInfo);
         setConnectivityCommon(networkType, validated, isConnected);
-        mNetworkCallback.onCapabilitiesChanged(
+        mDefaultNetworkCallback.onCapabilitiesChanged(
             mock(Network.class), new NetworkCapabilities(mNetCapabilities));
+        if (networkType == NetworkCapabilities.TRANSPORT_WIFI) {
+            if (isConnected) {
+                mNetworkCallback.onCapabilitiesChanged(
+                        mock(Network.class), new NetworkCapabilities(mNetCapabilities));
+            } else {
+                mNetworkCallback.onLost(mock(Network.class));
+            }
+        }
     }
 
     private void setConnectivityCommon(
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerWifiTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerWifiTest.java
index 988e022..9c9d6ea 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerWifiTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/policy/NetworkControllerWifiTest.java
@@ -32,6 +32,7 @@
     // These match the constants in WifiManager and need to be kept up to date.
     private static final int MIN_RSSI = -100;
     private static final int MAX_RSSI = -55;
+    private WifiInfo mWifiInfo = mock(WifiInfo.class);
 
     @Test
     public void testWifiIcon() {
@@ -41,15 +42,16 @@
 
         setWifiState(true, testSsid);
         setWifiLevel(0);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, false, true, mWifiInfo);
         // Connected, but still not validated - does not show
         verifyLastWifiIcon(false, WifiIcons.WIFI_SIGNAL_STRENGTH[0][0]);
 
         for (int testLevel = 0; testLevel < WifiIcons.WIFI_LEVEL_COUNT; testLevel++) {
             setWifiLevel(testLevel);
 
-            setConnectivityViaBroadcast(NetworkCapabilities.TRANSPORT_WIFI, true, true);
+            setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, true, true, mWifiInfo);
             verifyLastWifiIcon(true, WifiIcons.WIFI_SIGNAL_STRENGTH[1][testLevel]);
-            setConnectivityViaBroadcast(NetworkCapabilities.TRANSPORT_WIFI, false, true);
+            setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, false, true, mWifiInfo);
             // Icon does not show if not validated
             verifyLastWifiIcon(false, WifiIcons.WIFI_SIGNAL_STRENGTH[0][testLevel]);
         }
@@ -69,10 +71,10 @@
         for (int testLevel = 0; testLevel < WifiIcons.WIFI_LEVEL_COUNT; testLevel++) {
             setWifiLevel(testLevel);
 
-            setConnectivityViaBroadcast(NetworkCapabilities.TRANSPORT_WIFI, true, true);
+            setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, true, true, mWifiInfo);
             verifyLastQsWifiIcon(true, true, WifiIcons.QS_WIFI_SIGNAL_STRENGTH[1][testLevel],
                     testSsid);
-            setConnectivityViaBroadcast(NetworkCapabilities.TRANSPORT_WIFI, false, true);
+            setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, false, true, mWifiInfo);
             verifyLastQsWifiIcon(true, true, WifiIcons.QS_WIFI_SIGNAL_STRENGTH[0][testLevel],
                     testSsid);
         }
@@ -86,7 +88,7 @@
         setWifiEnabled(true);
         setWifiState(true, testSsid);
         setWifiLevel(testLevel);
-        setConnectivityViaBroadcast(NetworkCapabilities.TRANSPORT_WIFI, true, true);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, true, true, mWifiInfo);
         verifyLastQsWifiIcon(true, true,
                 WifiIcons.QS_WIFI_SIGNAL_STRENGTH[1][testLevel], testSsid);
 
@@ -111,14 +113,14 @@
         setWifiEnabled(true);
         setWifiState(true, testSsid);
         setWifiLevel(testLevel);
-        setConnectivityViaBroadcast(NetworkCapabilities.TRANSPORT_WIFI, true, true);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, true, true, mWifiInfo);
         verifyLastWifiIcon(true, WifiIcons.WIFI_SIGNAL_STRENGTH[1][testLevel]);
 
         setupDefaultSignal();
         setGsmRoaming(true);
         // Still be on wifi though.
-        setConnectivityViaBroadcast(NetworkCapabilities.TRANSPORT_WIFI, true, true);
-        setConnectivityViaBroadcast(NetworkCapabilities.TRANSPORT_CELLULAR, false, false);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, true, true, mWifiInfo);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_CELLULAR, false, false, mWifiInfo);
         verifyLastMobileDataIndicators(true,
                 DEFAULT_LEVEL,
                 0, true);
@@ -132,10 +134,10 @@
         setWifiEnabled(true);
         setWifiState(true, testSsid);
         setWifiLevel(testLevel);
-        setConnectivityViaBroadcast(NetworkCapabilities.TRANSPORT_WIFI, true, true);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, true, true, mWifiInfo);
         verifyLastWifiIcon(true, WifiIcons.WIFI_SIGNAL_STRENGTH[1][testLevel]);
 
-        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, false, true);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, false, true, mWifiInfo);
         verifyLastWifiIcon(false, WifiIcons.WIFI_SIGNAL_STRENGTH[0][testLevel]);
     }
 
@@ -147,11 +149,11 @@
         setWifiEnabled(true);
         setWifiState(true, testSsid);
         setWifiLevel(testLevel);
-        setConnectivityViaBroadcast(NetworkCapabilities.TRANSPORT_WIFI, true, true);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, true, true, mWifiInfo);
         verifyLastWifiIcon(true, WifiIcons.WIFI_SIGNAL_STRENGTH[1][testLevel]);
 
         setWifiState(false, testSsid);
-        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, false, false);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, false, false, mWifiInfo);
         verifyLastWifiIcon(false, WifiIcons.WIFI_NO_NETWORK);
     }
 
@@ -162,14 +164,14 @@
         setWifiEnabled(true);
         verifyLastWifiIcon(false, WifiIcons.WIFI_NO_NETWORK);
 
-        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_VPN, false, true);
-        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_VPN, true, true);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_VPN, false, true, mWifiInfo);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_VPN, true, true, mWifiInfo);
         verifyLastWifiIcon(false, WifiIcons.WIFI_NO_NETWORK);
 
         // Mock calling setUnderlyingNetworks.
         setWifiState(true, testSsid);
         setWifiLevel(testLevel);
-        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, true, true);
+        setConnectivityViaCallback(NetworkCapabilities.TRANSPORT_WIFI, true, true, mWifiInfo);
         verifyLastWifiIcon(true, WifiIcons.WIFI_SIGNAL_STRENGTH[1][testLevel]);
     }
 
@@ -209,6 +211,7 @@
         int rssi = (int)(MIN_RSSI + level * amountPerLevel);
         // Put RSSI in the middle of the range.
         rssi += amountPerLevel / 2;
+        when(mWifiInfo.getRssi()).thenReturn(rssi);
         Intent i = new Intent(WifiManager.RSSI_CHANGED_ACTION);
         i.putExtra(WifiManager.EXTRA_NEW_RSSI, rssi);
         mNetworkController.onReceive(mContext, i);
@@ -224,10 +227,8 @@
         Intent i = new Intent(WifiManager.NETWORK_STATE_CHANGED_ACTION);
         NetworkInfo networkInfo = mock(NetworkInfo.class);
         when(networkInfo.isConnected()).thenReturn(connected);
-
-        WifiInfo wifiInfo = mock(WifiInfo.class);
-        when(wifiInfo.getSSID()).thenReturn(ssid);
-        when(mMockWm.getConnectionInfo()).thenReturn(wifiInfo);
+        when(mWifiInfo.getSSID()).thenReturn(ssid);
+        when(mMockWm.getConnectionInfo()).thenReturn(mWifiInfo);
 
         i.putExtra(WifiManager.EXTRA_NETWORK_INFO, networkInfo);
         mNetworkController.onReceive(mContext, i);
diff --git a/packages/WAPPushManager/AndroidManifest.xml b/packages/WAPPushManager/AndroidManifest.xml
index a75fb2d..15f01e6 100644
--- a/packages/WAPPushManager/AndroidManifest.xml
+++ b/packages/WAPPushManager/AndroidManifest.xml
@@ -27,7 +27,8 @@
 
     <original-package android:name="com.android.smspush" />
     <application
-        android:allowClearUserData="false">
+        android:allowClearUserData="false"
+        android:directBootAware="true">
         <service android:name=".WapPushManager"
             android:permission="com.android.smspush.WAPPUSH_MANAGER_BIND"
             android:exported="true">
diff --git a/packages/WAPPushManager/src/com/android/smspush/WapPushManager.java b/packages/WAPPushManager/src/com/android/smspush/WapPushManager.java
index dc2707b..951e64f 100755
--- a/packages/WAPPushManager/src/com/android/smspush/WapPushManager.java
+++ b/packages/WAPPushManager/src/com/android/smspush/WapPushManager.java
@@ -26,17 +26,21 @@
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.database.Cursor;
-import android.database.sqlite.SQLiteOpenHelper;
 import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
 import android.os.Build;
 import android.os.IBinder;
 import android.os.PowerManager;
 import android.os.RemoteException;
+import android.os.UserManager;
 import android.util.Log;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.telephony.IWapPushManager;
 import com.android.internal.telephony.WapPushManagerParams;
 
+import java.io.File;
+
 /**
  * The WapPushManager service is implemented to process incoming
  * WAP Push messages and to maintain the Receiver Application/Application
@@ -67,8 +71,13 @@
     /**
      * Inner class that deals with application ID table
      */
-    private class WapPushManDBHelper extends SQLiteOpenHelper {
-        WapPushManDBHelper(Context context) {
+    @VisibleForTesting
+    public static class WapPushManDBHelper extends SQLiteOpenHelper {
+        /**
+         * Constructor
+         */
+        @VisibleForTesting
+        public WapPushManDBHelper(Context context) {
             super(context, DATABASE_NAME, null, WAP_PUSH_MANAGER_VERSION);
             if (LOCAL_LOGV) Log.v(LOG_TAG, "helper instance created.");
         }
@@ -269,10 +278,6 @@
                 int app_type, boolean need_signature, boolean further_processing) {
             WapPushManDBHelper dbh = getDatabase(mContext);
             SQLiteDatabase db = dbh.getWritableDatabase();
-            WapPushManDBHelper.queryData lastapp = dbh.queryLastApp(db, x_app_id, content_type);
-            boolean ret = false;
-            boolean insert = false;
-            int sq = 0;
 
             if (!appTypeCheck(app_type)) {
                 Log.w(LOG_TAG, "invalid app_type " + app_type + ". app_type must be "
@@ -280,34 +285,8 @@
                         + WapPushManagerParams.APP_TYPE_SERVICE);
                 return false;
             }
-
-            if (lastapp == null) {
-                insert = true;
-                sq = 0;
-            } else if (!lastapp.packageName.equals(package_name) ||
-                    !lastapp.className.equals(class_name)) {
-                insert = true;
-                sq = lastapp.installOrder + 1;
-            }
-
-            if (insert) {
-                ContentValues values = new ContentValues();
-
-                values.put("x_wap_application", x_app_id);
-                values.put("content_type", content_type);
-                values.put("package_name", package_name);
-                values.put("class_name", class_name);
-                values.put("app_type", app_type);
-                values.put("need_signature", need_signature ? 1 : 0);
-                values.put("further_processing", further_processing ? 1 : 0);
-                values.put("install_order", sq);
-                db.insert(APPID_TABLE_NAME, null, values);
-                if (LOCAL_LOGV) Log.v(LOG_TAG, "add:" + x_app_id + ":" + content_type
-                        + " " + package_name + "." + class_name
-                        + ", newsq:" + sq);
-                ret = true;
-            }
-
+            boolean ret = insertPackage(dbh, db, x_app_id, content_type, package_name, class_name,
+                    app_type, need_signature, further_processing);
             db.close();
 
             return ret;
@@ -404,11 +383,91 @@
     protected WapPushManDBHelper getDatabase(Context context) {
         if (mDbHelper == null) {
             if (LOCAL_LOGV) Log.v(LOG_TAG, "create new db inst.");
-            mDbHelper = new WapPushManDBHelper(context);
+            mDbHelper = new WapPushManDBHelper(context.createDeviceProtectedStorageContext());
         }
+        // Migrate existing legacy database into the device encrypted storage.
+        migrateWapPushManDBIfNeeded(context);
         return mDbHelper;
     }
 
+    /**
+     * Inserts a package information into a database
+     */
+    @VisibleForTesting
+    public boolean insertPackage(WapPushManDBHelper dbh, SQLiteDatabase db, String appId,
+            String contentType, String packageName, String className, int appType,
+            boolean needSignature, boolean furtherProcessing) {
+
+        WapPushManDBHelper.queryData lastapp = dbh.queryLastApp(db, appId, contentType);
+        boolean insert = false;
+        int sq = 0;
+
+        if (lastapp == null) {
+            insert = true;
+            sq = 0;
+        } else if (!lastapp.packageName.equals(packageName)
+                || !lastapp.className.equals(className)) {
+            insert = true;
+            sq = lastapp.installOrder + 1;
+        }
+
+        if (insert) {
+            ContentValues values = new ContentValues();
+
+            values.put("x_wap_application", appId);
+            values.put("content_type", contentType);
+            values.put("package_name", packageName);
+            values.put("class_name", className);
+            values.put("app_type", appType);
+            values.put("need_signature", needSignature ? 1 : 0);
+            values.put("further_processing", furtherProcessing ? 1 : 0);
+            values.put("install_order", sq);
+            db.insert(APPID_TABLE_NAME, null, values);
+            if (LOCAL_LOGV) {
+                Log.v(LOG_TAG, "add:" + appId + ":" + contentType + " " + packageName
+                        + "." + className + ", newsq:" + sq);
+            }
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Migrates a legacy database into the device encrypted storage
+     */
+    private void migrateWapPushManDBIfNeeded(Context context) {
+        UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
+        File file = context.getDatabasePath(DATABASE_NAME);
+        if (!userManager.isUserUnlocked() || !file.exists()) {
+            // Check if the device is unlocked because a legacy database can't access during
+            // DirectBoot.
+            return;
+        }
+
+        // Migration steps below:
+        // 1. Merge the package info to legacy database if there is any package info which is
+        // registered during DirectBoot.
+        // 2. Move the data base to the device encryped storage.
+        WapPushManDBHelper legacyDbHelper = new WapPushManDBHelper(context);
+        SQLiteDatabase legacyDb = legacyDbHelper.getWritableDatabase();
+        SQLiteDatabase db = mDbHelper.getWritableDatabase();
+        Cursor cur = db.query(APPID_TABLE_NAME, null, null, null, null, null, null);
+        while (cur.moveToNext()) {
+            insertPackage(legacyDbHelper, legacyDb,
+                    cur.getString(cur.getColumnIndex("x_wap_application")),
+                    cur.getString(cur.getColumnIndex("content_type")),
+                    cur.getString(cur.getColumnIndex("package_name")),
+                    cur.getString(cur.getColumnIndex("class_name")),
+                    cur.getInt(cur.getColumnIndex("app_type")),
+                    cur.getInt(cur.getColumnIndex("need_signature")) == 1,
+                    cur.getInt(cur.getColumnIndex("further_processing")) == 1);
+        }
+        cur.close();
+        legacyDb.close();
+        db.close();
+        context.createDeviceProtectedStorageContext().moveDatabaseFrom(context, DATABASE_NAME);
+        Log.i(LOG_TAG, "Migrated the legacy database.");
+    }
 
     /**
      * This method is used for testing
diff --git a/packages/WAPPushManager/tests/src/com/android/smspush/unitTests/WapPushTest.java b/packages/WAPPushManager/tests/src/com/android/smspush/unitTests/WapPushTest.java
index f7afc57..b9dac4e 100644
--- a/packages/WAPPushManager/tests/src/com/android/smspush/unitTests/WapPushTest.java
+++ b/packages/WAPPushManager/tests/src/com/android/smspush/unitTests/WapPushTest.java
@@ -21,6 +21,7 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.ServiceConnection;
+import android.database.sqlite.SQLiteDatabase;
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.provider.Telephony.Sms.Intents;
@@ -33,7 +34,9 @@
 import com.android.internal.telephony.uicc.IccUtils;
 import com.android.internal.util.HexDump;
 import com.android.smspush.WapPushManager;
+import com.android.smspush.WapPushManager.WapPushManDBHelper;
 
+import java.io.File;
 import java.util.Random;
 
 /**
@@ -467,8 +470,9 @@
         try {
             super.setUp();
             // get verifier
-            getContext().bindService(new Intent(IDataVerify.class.getName()),
-                    mConn, Context.BIND_AUTO_CREATE);
+            Intent intent = new Intent(IDataVerify.class.getName());
+            intent.setPackage("com.android.smspush.unitTests");
+            getContext().bindService(intent, mConn, Context.BIND_AUTO_CREATE);
         } catch (Exception e) {
             Log.w(LOG_TAG, "super exception");
         }
@@ -552,15 +556,15 @@
     }
 
     /**
-     * Add sqlite injection test
+     * Sqlite injection test
      */
-    public void testAddPackage0() {
+    public void testSqliteInjection() {
         String inject = "' union select 0,'com.android.settings','com.android.settings.Settings',0,0,0--";
 
-        // insert new data
+        // update data
         IWapPushManager iwapman = getInterface();
         try {
-            assertFalse(iwapman.addPackage(
+            assertFalse(iwapman.updatePackage(
                     inject,
                     Integer.toString(mContentTypeValue),
                     mPackageName, mClassName,
@@ -2528,4 +2532,45 @@
         mMessageBody = originalMessageBody;
     }
 
+    /**
+     * DataBase migration test.
+     */
+    public void testDataBaseMigration() {
+        IWapPushManager iwapman = getInterface();
+        WapPushManager wpman = getService();
+        Context context = getContext();
+
+        addPackageToLegacyDB(mAppIdValue, mContentTypeValue, mPackageName, mClassName,
+                WapPushManagerParams.APP_TYPE_SERVICE, true, true);
+        addPackageToLegacyDB(mAppIdValue + 10, mContentTypeValue, mPackageName, mClassName,
+                WapPushManagerParams.APP_TYPE_SERVICE, true, true);
+
+        File oldDbFile = context.getDatabasePath("wappush.db");
+        assertTrue(oldDbFile.exists());
+        assertTrue(wpman.verifyData(Integer.toString(mAppIdValue),
+                Integer.toString(mContentTypeValue),
+                mPackageName, mClassName,
+                WapPushManagerParams.APP_TYPE_SERVICE, true, true));
+        assertFalse(oldDbFile.exists());
+
+        // Clean up DB
+        try {
+            iwapman.deletePackage(Integer.toString(mAppIdValue),
+                    Integer.toString(mContentTypeValue), mPackageName, mClassName);
+            iwapman.deletePackage(Integer.toString(mAppIdValue + 10),
+                    Integer.toString(mContentTypeValue), mPackageName, mClassName);
+        } catch (RemoteException e) {
+            assertTrue(false);
+        }
+    }
+
+    private void addPackageToLegacyDB(int appId, int contextType, String packagename,
+            String classnName, int appType, boolean signature, boolean furtherProcessing) {
+        WapPushManager wpman = getService();
+        WapPushManDBHelper dbh = new WapPushManDBHelper(getContext());
+        SQLiteDatabase db = dbh.getWritableDatabase();
+
+        wpman.insertPackage(dbh, db, Integer.toString(appId), Integer.toString(contextType),
+                packagename, classnName, appType, signature, furtherProcessing);
+    }
 }
diff --git a/services/Android.bp b/services/Android.bp
index 872b118..0a01c95 100644
--- a/services/Android.bp
+++ b/services/Android.bp
@@ -107,6 +107,7 @@
     libs: [
         "android.hidl.manager-V1.0-java",
         "framework-tethering.stubs.module_lib",
+        "service-art.stubs.system_server",
     ],
 
     // Uncomment to enable output of certain warnings (deprecated, unchecked)
@@ -146,7 +147,7 @@
         " --hide DeprecationMismatch" +
         " --hide HiddenTypedefConstant",
     visibility: ["//visibility:private"],
-    filter_packages: ["com.android."]
+    filter_packages: ["com.android."],
 }
 
 droidstubs {
@@ -161,7 +162,7 @@
         last_released: {
             api_file: ":android.api.system-server.latest",
             removed_api_file: ":removed.api.system-server.latest",
-            baseline_file: ":android-incompatibilities.api.system-server.latest"
+            baseline_file: ":android-incompatibilities.api.system-server.latest",
         },
         api_lint: {
             enabled: true,
@@ -171,18 +172,24 @@
     },
     dists: [
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/system-server/api",
             dest: "android.txt",
-            tag: ".api.txt"
+            tag: ".api.txt",
         },
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/system-server/api",
             dest: "removed.txt",
             tag: ".removed-api.txt",
         },
-    ]
+    ],
 }
 
 java_library {
@@ -216,16 +223,22 @@
     },
     dists: [
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/system-server/api",
             dest: "android-non-updatable.txt",
-            tag: ".api.txt"
+            tag: ".api.txt",
         },
         {
-            targets: ["sdk", "win_sdk"],
+            targets: [
+                "sdk",
+                "win_sdk",
+            ],
             dir: "apistubs/android/system-server/api",
             dest: "android-non-updatable-removed.tx",
             tag: ".removed-api.txt",
         },
-    ]
-}
\ No newline at end of file
+    ],
+}
diff --git a/services/autofill/java/com/android/server/autofill/Session.java b/services/autofill/java/com/android/server/autofill/Session.java
index 1970b57..f5497f9 100644
--- a/services/autofill/java/com/android/server/autofill/Session.java
+++ b/services/autofill/java/com/android/server/autofill/Session.java
@@ -1204,7 +1204,9 @@
     @Override
     public void onServiceDied(@NonNull RemoteFillService service) {
         Slog.w(TAG, "removing session because service died");
-        forceRemoveSelfLocked();
+        synchronized (mLock) {
+            forceRemoveSelfLocked();
+        }
     }
 
     // AutoFillUiCallback
diff --git a/services/backup/OWNERS b/services/backup/OWNERS
index ba2a63a..852c689 100644
--- a/services/backup/OWNERS
+++ b/services/backup/OWNERS
@@ -1,6 +1,5 @@
 # Bug component: 656484
 
-aabhinav@google.com
 bryanmawhinney@google.com
 jstemmer@google.com
 millmore@google.com
@@ -9,4 +8,3 @@
 niamhfw@google.com
 philippov@google.com
 rthakohov@google.com
-tobiast@google.com
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 70c9fe7..2216e89 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -616,7 +616,9 @@
     }
 
     private static IDnsResolver getDnsResolver(Context context) {
-        return IDnsResolver.Stub.asInterface(DnsResolverServiceManager.getService(context));
+        final DnsResolverServiceManager dsm = context.getSystemService(
+                DnsResolverServiceManager.class);
+        return IDnsResolver.Stub.asInterface(dsm.getService());
     }
 
     /** Handler thread used for all of the handlers below. */
@@ -1281,14 +1283,22 @@
 
         mPermissionMonitor = new PermissionMonitor(mContext, mNetd);
 
+        mUserAllContext = mContext.createContextAsUser(UserHandle.ALL, 0 /* flags */);
         // Listen for user add/removes to inform PermissionMonitor.
         // Should run on mHandler to avoid any races.
-        IntentFilter intentFilter = new IntentFilter();
-        intentFilter.addAction(Intent.ACTION_USER_ADDED);
-        intentFilter.addAction(Intent.ACTION_USER_REMOVED);
+        final IntentFilter userIntentFilter = new IntentFilter();
+        userIntentFilter.addAction(Intent.ACTION_USER_ADDED);
+        userIntentFilter.addAction(Intent.ACTION_USER_REMOVED);
+        mUserAllContext.registerReceiver(mUserIntentReceiver, userIntentFilter,
+                null /* broadcastPermission */, mHandler);
 
-        mUserAllContext = mContext.createContextAsUser(UserHandle.ALL, 0 /* flags */);
-        mUserAllContext.registerReceiver(mIntentReceiver, intentFilter,
+        // Listen to package add/removes for netd
+        final IntentFilter packageIntentFilter = new IntentFilter();
+        packageIntentFilter.addAction(Intent.ACTION_PACKAGE_ADDED);
+        packageIntentFilter.addAction(Intent.ACTION_PACKAGE_REMOVED);
+        packageIntentFilter.addAction(Intent.ACTION_PACKAGE_REPLACED);
+        packageIntentFilter.addDataScheme("package");
+        mUserAllContext.registerReceiver(mPackageIntentReceiver, packageIntentFilter,
                 null /* broadcastPermission */, mHandler);
 
         mNetworkActivityTracker = new LegacyNetworkActivityTracker(mContext, mHandler, mNetd);
@@ -1895,6 +1905,10 @@
             newNc.setNetworkSpecifier(newNc.getNetworkSpecifier().redact());
         }
         newNc.setAdministratorUids(new int[0]);
+        if (!checkAnyPermissionOf(
+                callerPid, callerUid, android.Manifest.permission.NETWORK_FACTORY)) {
+            newNc.setSubIds(Collections.emptySet());
+        }
 
         return newNc;
     }
@@ -2248,7 +2262,9 @@
                 netId = nai.network.getNetId();
             }
             boolean ok = addLegacyRouteToHost(lp, addr, netId, uid);
-            if (DBG) log("requestRouteToHostAddress ok=" + ok);
+            if (DBG) {
+                log("requestRouteToHostAddress " + addr + nai.toShortString() + " ok=" + ok);
+            }
             return ok;
         } finally {
             Binder.restoreCallingIdentity(token);
@@ -2775,6 +2791,8 @@
     @Override
     protected void dump(@NonNull FileDescriptor fd, @NonNull PrintWriter writer,
             @Nullable String[] args) {
+        if (!checkDumpPermission(mContext, TAG, writer)) return;
+
         mPriorityDumper.dump(fd, writer, args);
     }
 
@@ -2792,7 +2810,6 @@
 
     private void doDump(FileDescriptor fd, PrintWriter writer, String[] args) {
         final IndentingPrintWriter pw = new IndentingPrintWriter(writer, "  ");
-        if (!checkDumpPermission(mContext, TAG, pw)) return;
 
         if (CollectionUtils.contains(args, DIAG_ARG)) {
             dumpNetworkDiagnostics(pw);
@@ -2872,13 +2889,13 @@
             pw.println();
             pw.println("mNetworkRequestInfoLogs (most recent first):");
             pw.increaseIndent();
-            mNetworkRequestInfoLogs.reverseDump(fd, pw, args);
+            mNetworkRequestInfoLogs.reverseDump(pw);
             pw.decreaseIndent();
 
             pw.println();
             pw.println("mNetworkInfoBlockingLogs (most recent first):");
             pw.increaseIndent();
-            mNetworkInfoBlockingLogs.reverseDump(fd, pw, args);
+            mNetworkInfoBlockingLogs.reverseDump(pw);
             pw.decreaseIndent();
 
             pw.println();
@@ -2892,7 +2909,7 @@
                 long duration = SystemClock.elapsedRealtime() - mLastWakeLockAcquireTimestamp;
                 pw.println("currently holding WakeLock for: " + (duration / 1000) + "s");
             }
-            mWakelockLogs.reverseDump(fd, pw, args);
+            mWakelockLogs.reverseDump(pw);
 
             pw.println();
             pw.println("bandwidth update requests (by uid):");
@@ -2904,7 +2921,12 @@
                 }
             }
             pw.decreaseIndent();
+            pw.decreaseIndent();
 
+            pw.println();
+            pw.println("mOemNetworkPreferencesLogs (most recent first):");
+            pw.increaseIndent();
+            mOemNetworkPreferencesLogs.reverseDump(pw);
             pw.decreaseIndent();
         }
 
@@ -3761,6 +3783,10 @@
     private void destroyNativeNetwork(@NonNull NetworkAgentInfo networkAgent) {
         try {
             mNetd.networkDestroy(networkAgent.network.getNetId());
+        } catch (RemoteException | ServiceSpecificException e) {
+            loge("Exception destroying network(networkDestroy): " + e);
+        }
+        try {
             mDnsResolver.destroyNetworkCache(networkAgent.network.getNetId());
         } catch (RemoteException | ServiceSpecificException e) {
             loge("Exception destroying network: " + e);
@@ -4034,7 +4060,7 @@
                 }
             }
         }
-        decrementRequestCount(nri);
+        nri.decrementRequestCount();
         mNetworkRequestInfoLogs.log("RELEASE " + nri);
 
         if (null != nri.getActiveRequest()) {
@@ -4151,14 +4177,6 @@
                 ? mSystemNetworkRequestCounter : mNetworkRequestCounter;
     }
 
-    private void incrementRequestCountOrThrow(NetworkRequestInfo nri) {
-        getRequestCounter(nri).incrementCountOrThrow(nri.mUid);
-    }
-
-    private void decrementRequestCount(NetworkRequestInfo nri) {
-        getRequestCounter(nri).decrementCount(nri.mUid);
-    }
-
     @Override
     public void setAcceptUnvalidated(Network network, boolean accept, boolean always) {
         enforceNetworkStackSettingsOrSetup();
@@ -4962,7 +4980,7 @@
     }
 
     @Override
-    public void setGlobalProxy(final ProxyInfo proxyProperties) {
+    public void setGlobalProxy(@Nullable final ProxyInfo proxyProperties) {
         PermissionUtils.enforceNetworkStackPermission(mContext);
         mProxyTracker.setGlobalProxy(proxyProperties);
     }
@@ -5307,14 +5325,14 @@
         }
     }
 
-    private void onUserAdded(UserHandle user) {
+    private void onUserAdded(@NonNull final UserHandle user) {
         mPermissionMonitor.onUserAdded(user);
         if (mOemNetworkPreferences.getNetworkPreferences().size() > 0) {
             handleSetOemNetworkPreference(mOemNetworkPreferences, null);
         }
     }
 
-    private void onUserRemoved(UserHandle user) {
+    private void onUserRemoved(@NonNull final UserHandle user) {
         mPermissionMonitor.onUserRemoved(user);
         // If there was a network preference for this user, remove it.
         handleSetProfileNetworkPreference(new ProfileNetworkPreferences.Preference(user, null),
@@ -5324,7 +5342,18 @@
         }
     }
 
-    private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
+    private void onPackageChanged(@NonNull final String packageName) {
+        // This is necessary in case a package is added or removed, but also when it's replaced to
+        // run as a new UID by its manifest rules. Also, if a separate package shares the same UID
+        // as one in the preferences, then it should follow the same routing as that other package,
+        // which means updating the rules is never to be needed in this case (whether it joins or
+        // leaves a UID with a preference).
+        if (isMappedInOemNetworkPreference(packageName)) {
+            handleSetOemNetworkPreference(mOemNetworkPreferences, null);
+        }
+    }
+
+    private final BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
             ensureRunningOnConnectivityServiceThread();
@@ -5347,6 +5376,22 @@
         }
     };
 
+    private final BroadcastReceiver mPackageIntentReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            ensureRunningOnConnectivityServiceThread();
+            switch (intent.getAction()) {
+                case Intent.ACTION_PACKAGE_ADDED:
+                case Intent.ACTION_PACKAGE_REMOVED:
+                case Intent.ACTION_PACKAGE_REPLACED:
+                    onPackageChanged(intent.getData().getSchemeSpecificPart());
+                    break;
+                default:
+                    Log.wtf(TAG, "received unexpected intent: " + intent.getAction());
+            }
+        }
+    };
+
     private final HashMap<Messenger, NetworkProviderInfo> mNetworkProviderInfos = new HashMap<>();
     private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = new HashMap<>();
 
@@ -5457,6 +5502,9 @@
         @Nullable
         final String mCallingAttributionTag;
 
+        // Counter keeping track of this NRI.
+        final PerUidCounter mPerUidCounter;
+
         // Effective UID of this request. This is different from mUid when a privileged process
         // files a request on behalf of another UID. This UID is used to determine blocked status,
         // UID matching, and so on. mUid above is used for permission checks and to enforce the
@@ -5507,7 +5555,8 @@
             mPid = getCallingPid();
             mUid = mDeps.getCallingUid();
             mAsUid = asUid;
-            incrementRequestCountOrThrow(this);
+            mPerUidCounter = getRequestCounter(this);
+            mPerUidCounter.incrementCountOrThrow(mUid);
             /**
              * Location sensitive data not included in pending intent. Only included in
              * {@link NetworkCallback}.
@@ -5539,7 +5588,8 @@
             mUid = mDeps.getCallingUid();
             mAsUid = asUid;
             mPendingIntent = null;
-            incrementRequestCountOrThrow(this);
+            mPerUidCounter = getRequestCounter(this);
+            mPerUidCounter.incrementCountOrThrow(mUid);
             mCallbackFlags = callbackFlags;
             mCallingAttributionTag = callingAttributionTag;
             linkDeathRecipient();
@@ -5577,7 +5627,8 @@
             mUid = nri.mUid;
             mAsUid = nri.mAsUid;
             mPendingIntent = nri.mPendingIntent;
-            incrementRequestCountOrThrow(this);
+            mPerUidCounter = getRequestCounter(this);
+            mPerUidCounter.incrementCountOrThrow(mUid);
             mCallbackFlags = nri.mCallbackFlags;
             mCallingAttributionTag = nri.mCallingAttributionTag;
             linkDeathRecipient();
@@ -5609,6 +5660,10 @@
             return Collections.unmodifiableList(tempRequests);
         }
 
+        void decrementRequestCount() {
+            mPerUidCounter.decrementCount(mUid);
+        }
+
         void linkDeathRecipient() {
             if (null != mBinder) {
                 try {
@@ -5641,7 +5696,7 @@
                     + mNetworkRequestForCallback.requestId
                     + " " + mRequests
                     + (mPendingIntent == null ? "" : " to trigger " + mPendingIntent)
-                    + "callback flags: " + mCallbackFlags;
+                    + " callback flags: " + mCallbackFlags;
         }
     }
 
@@ -5666,6 +5721,10 @@
                     "Insufficient permissions to request a specific signal strength");
         }
         mAppOpsManager.checkPackage(callerUid, callerPackageName);
+
+        if (!nc.getSubIds().isEmpty()) {
+            enforceNetworkFactoryPermission();
+        }
     }
 
     private int[] getSignalStrengthThresholds(@NonNull final NetworkAgentInfo nai) {
@@ -6086,6 +6145,7 @@
     @Override
     public int registerNetworkProvider(Messenger messenger, String name) {
         enforceNetworkFactoryOrSettingsPermission();
+        Objects.requireNonNull(messenger, "messenger must be non-null");
         NetworkProviderInfo npi = new NetworkProviderInfo(name, messenger,
                 nextNetworkProviderId(), () -> unregisterNetworkProvider(messenger));
         mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_PROVIDER, npi));
@@ -6156,6 +6216,21 @@
     @NonNull
     private ProfileNetworkPreferences mProfileNetworkPreferences = new ProfileNetworkPreferences();
 
+    // OemNetworkPreferences activity String log entries.
+    private static final int MAX_OEM_NETWORK_PREFERENCE_LOGS = 20;
+    @NonNull
+    private final LocalLog mOemNetworkPreferencesLogs =
+            new LocalLog(MAX_OEM_NETWORK_PREFERENCE_LOGS);
+
+    /**
+     * Determine whether a given package has a mapping in the current OemNetworkPreferences.
+     * @param packageName the package name to check existence of a mapping for.
+     * @return true if a mapping exists, false otherwise
+     */
+    private boolean isMappedInOemNetworkPreference(@NonNull final String packageName) {
+        return mOemNetworkPreferences.getNetworkPreferences().containsKey(packageName);
+    }
+
     // The always-on request for an Internet-capable network that apps without a specific default
     // fall back to.
     @VisibleForTesting
@@ -6176,7 +6251,7 @@
      * @return the NetworkRequestInfo tracking the given uid.
      */
     @NonNull
-    private NetworkRequestInfo getDefaultRequestTrackingUid(@NonNull final int uid) {
+    private NetworkRequestInfo getDefaultRequestTrackingUid(final int uid) {
         for (final NetworkRequestInfo nri : mDefaultNetworkRequests) {
             if (nri == mDefaultRequest) {
                 continue;
@@ -6623,7 +6698,7 @@
                     mDeps.reportNetworkInterfaceForTransports(mContext, iface,
                             caps.getTransportTypes());
                 } catch (Exception e) {
-                    loge("Exception adding interface: " + e);
+                    logw("Exception adding interface: " + e);
                 }
             }
         }
@@ -7619,7 +7694,7 @@
         }
 
         void addRequestReassignment(@NonNull final RequestReassignment reassignment) {
-            if (Build.IS_DEBUGGABLE) {
+            if (Build.isDebuggable()) {
                 // The code is never supposed to add two reassignments of the same request. Make
                 // sure this stays true, but without imposing this expensive check on all
                 // reassignments on all user devices.
@@ -8773,7 +8848,7 @@
             // Decrement the reference count for this NetworkRequestInfo. The reference count is
             // incremented when the NetworkRequestInfo is created as part of
             // enforceRequestCountLimit().
-            decrementRequestCount(nri);
+            nri.decrementRequestCount();
             return;
         }
 
@@ -8839,7 +8914,7 @@
         // Decrement the reference count for this NetworkRequestInfo. The reference count is
         // incremented when the NetworkRequestInfo is created as part of
         // enforceRequestCountLimit().
-        decrementRequestCount(nri);
+        nri.decrementRequestCount();
 
         iCb.unlinkToDeath(cbInfo, 0);
     }
@@ -9003,6 +9078,7 @@
     @Override
     public void unregisterConnectivityDiagnosticsCallback(
             @NonNull IConnectivityDiagnosticsCallback callback) {
+        Objects.requireNonNull(callback, "callback must be non-null");
         mConnectivityDiagnosticsHandler.sendMessage(
                 mConnectivityDiagnosticsHandler.obtainMessage(
                         ConnectivityDiagnosticsHandler
@@ -9373,6 +9449,7 @@
      */
     @Override
     public void unregisterQosCallback(@NonNull final IQosCallback callback) {
+        Objects.requireNonNull(callback, "callback must be non-null");
         mQosCallbackTracker.unregisterCallback(callback);
     }
 
@@ -9415,14 +9492,8 @@
             throw new IllegalArgumentException("Must explicitly specify a user handle ("
                     + "UserHandle.CURRENT not supported)");
         }
-        final UserManager um;
-        try {
-            um = mContext.createContextAsUser(profile, 0 /* flags */)
-                    .getSystemService(UserManager.class);
-        } catch (IllegalStateException e) {
-            throw new IllegalArgumentException("Profile does not exist");
-        }
-        if (!um.isManagedProfile()) {
+        final UserManager um = mContext.getSystemService(UserManager.class);
+        if (!um.isManagedProfile(profile.getIdentifier())) {
             throw new IllegalArgumentException("Profile must be a managed profile");
         }
         // Strictly speaking, mOemNetworkPreferences should only be touched on the
@@ -9585,11 +9656,11 @@
             return;
         }
 
+        mOemNetworkPreferencesLogs.log("UPDATE INITIATED: " + preference);
         final ArraySet<NetworkRequestInfo> nris =
                 new OemNetworkRequestFactory().createNrisFromOemNetworkPreferences(preference);
         replaceDefaultNetworkRequestsForPreference(nris);
         mOemNetworkPreferences = preference;
-        // TODO http://b/176496396 persist data to shared preferences.
 
         if (null != listener) {
             try {
@@ -9739,14 +9810,13 @@
                     }
                     for (final UserHandle ui : users) {
                         // Add the rules for all users as this policy is device wide.
-                        uids.get(pref).add(UserHandle.getUid(ui, uid));
+                        uids.get(pref).add(ui.getUid(uid));
                     }
                 } catch (PackageManager.NameNotFoundException e) {
                     // Although this may seem like an error scenario, it is ok that uninstalled
                     // packages are sent on a network preference as the system will watch for
                     // package installations associated with this network preference and update
                     // accordingly. This is done so as to minimize race conditions on app install.
-                    // TODO b/177092163 add app install watching.
                     continue;
                 }
             }
diff --git a/services/core/java/com/android/server/DropBoxManagerService.java b/services/core/java/com/android/server/DropBoxManagerService.java
index 6560824..5f6d9bd 100644
--- a/services/core/java/com/android/server/DropBoxManagerService.java
+++ b/services/core/java/com/android/server/DropBoxManagerService.java
@@ -82,7 +82,7 @@
     private static final int DEFAULT_AGE_SECONDS = 3 * 86400;
     private static final int DEFAULT_MAX_FILES = 1000;
     private static final int DEFAULT_MAX_FILES_LOWRAM = 300;
-    private static final int DEFAULT_QUOTA_KB = 5 * 1024;
+    private static final int DEFAULT_QUOTA_KB = 10 * 1024;
     private static final int DEFAULT_QUOTA_PERCENT = 10;
     private static final int DEFAULT_RESERVE_PERCENT = 10;
     private static final int QUOTA_RESCAN_MILLIS = 5000;
diff --git a/services/core/java/com/android/server/OWNERS b/services/core/java/com/android/server/OWNERS
index 3bcde12..9821cdc 100644
--- a/services/core/java/com/android/server/OWNERS
+++ b/services/core/java/com/android/server/OWNERS
@@ -20,6 +20,7 @@
 per-file *Alarm* = file:/apex/jobscheduler/OWNERS
 per-file *AppOp* = file:/core/java/android/permission/OWNERS
 per-file *Battery* = file:/BATTERY_STATS_OWNERS
+per-file *Binder* = file:/core/java/com/android/internal/os/BINDER_OWNERS
 per-file *Bluetooth* = file:/core/java/android/bluetooth/OWNERS
 per-file *Gnss* = file:/services/core/java/com/android/server/location/OWNERS
 per-file *Location* = file:/services/core/java/com/android/server/location/OWNERS
diff --git a/services/core/java/com/android/server/PersistentDataBlockService.java b/services/core/java/com/android/server/PersistentDataBlockService.java
index 351e616..c6fdb9d 100644
--- a/services/core/java/com/android/server/PersistentDataBlockService.java
+++ b/services/core/java/com/android/server/PersistentDataBlockService.java
@@ -23,7 +23,6 @@
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.os.Binder;
-import android.os.FileUtils;
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.os.SystemProperties;
@@ -45,6 +44,7 @@
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.io.RandomAccessFile;
 import java.nio.ByteBuffer;
 import java.nio.channels.FileChannel;
 import java.security.MessageDigest;
@@ -131,13 +131,13 @@
     private static final String FLASH_LOCK_UNLOCKED = "0";
 
     private final Context mContext;
+    private final String mDataBlockFile;
     private final boolean mIsRunningDSU;
     private final Object mLock = new Object();
     private final CountDownLatch mInitDoneSignal = new CountDownLatch(1);
 
     private int mAllowedUid = -1;
     private long mBlockDeviceSize;
-    private String mDataBlockFile;
 
     @GuardedBy("mLock")
     private boolean mIsWritable = true;
@@ -145,8 +145,12 @@
     public PersistentDataBlockService(Context context) {
         super(context);
         mContext = context;
-        mDataBlockFile = SystemProperties.get(PERSISTENT_DATA_BLOCK_PROP);
         mIsRunningDSU = SystemProperties.getBoolean(GSI_RUNNING_PROP, false);
+        if (mIsRunningDSU) {
+            mDataBlockFile = GSI_SANDBOX;
+        } else {
+            mDataBlockFile = SystemProperties.get(PERSISTENT_DATA_BLOCK_PROP);
+        }
         mBlockDeviceSize = -1; // Load lazily
     }
 
@@ -260,7 +264,11 @@
     private long getBlockDeviceSize() {
         synchronized (mLock) {
             if (mBlockDeviceSize == -1) {
-                mBlockDeviceSize = nativeGetBlockDeviceSize(mDataBlockFile);
+                if (mIsRunningDSU) {
+                    mBlockDeviceSize = MAX_DATA_BLOCK_SIZE;
+                } else {
+                    mBlockDeviceSize = nativeGetBlockDeviceSize(mDataBlockFile);
+                }
             }
         }
 
@@ -290,40 +298,30 @@
         return true;
     }
 
-    private FileOutputStream getBlockOutputStream() throws IOException {
-        if (!mIsRunningDSU) {
-            return new FileOutputStream(new File(mDataBlockFile));
-        } else {
-            File sandbox = new File(GSI_SANDBOX);
-            File realpdb = new File(SystemProperties.get(PERSISTENT_DATA_BLOCK_PROP));
-            if (!sandbox.exists()) {
-                FileUtils.copy(realpdb, sandbox);
-                mDataBlockFile = GSI_SANDBOX;
-            }
-            Slog.i(TAG, "PersistentDataBlock copy-on-write");
-            return new FileOutputStream(sandbox);
-        }
+    private FileChannel getBlockOutputChannel() throws IOException {
+        return new RandomAccessFile(mDataBlockFile, "rw").getChannel();
     }
 
     private boolean computeAndWriteDigestLocked() {
         byte[] digest = computeDigestLocked(null);
         if (digest != null) {
-            DataOutputStream outputStream;
+            FileChannel channel;
             try {
-                outputStream = new DataOutputStream(getBlockOutputStream());
+                channel = getBlockOutputChannel();
             } catch (IOException e) {
                 Slog.e(TAG, "partition not available?", e);
                 return false;
             }
 
             try {
-                outputStream.write(digest, 0, DIGEST_SIZE_BYTES);
-                outputStream.flush();
+                ByteBuffer buf = ByteBuffer.allocate(DIGEST_SIZE_BYTES);
+                buf.put(digest);
+                buf.flip();
+                channel.write(buf);
+                channel.force(true);
             } catch (IOException e) {
                 Slog.e(TAG, "failed to write block checksum", e);
                 return false;
-            } finally {
-                IoUtils.closeQuietly(outputStream);
             }
             return true;
         } else {
@@ -374,25 +372,18 @@
     }
 
     private void formatPartitionLocked(boolean setOemUnlockEnabled) {
-        DataOutputStream outputStream;
-        try {
-            outputStream = new DataOutputStream(getBlockOutputStream());
-        } catch (IOException e) {
-            Slog.e(TAG, "partition not available?", e);
-            return;
-        }
 
-        byte[] data = new byte[DIGEST_SIZE_BYTES];
         try {
-            outputStream.write(data, 0, DIGEST_SIZE_BYTES);
-            outputStream.writeInt(PARTITION_TYPE_MARKER);
-            outputStream.writeInt(0); // data size
-            outputStream.flush();
+            FileChannel channel = getBlockOutputChannel();
+            ByteBuffer buf = ByteBuffer.allocate(DIGEST_SIZE_BYTES + HEADER_SIZE);
+            buf.put(new byte[DIGEST_SIZE_BYTES]);
+            buf.putInt(PARTITION_TYPE_MARKER);
+            buf.putInt(0);
+            channel.write(buf);
+            channel.force(true);
         } catch (IOException e) {
             Slog.e(TAG, "failed to format block", e);
             return;
-        } finally {
-            IoUtils.closeQuietly(outputStream);
         }
 
         doSetOemUnlockEnabledLocked(setOemUnlockEnabled);
@@ -400,16 +391,9 @@
     }
 
     private void doSetOemUnlockEnabledLocked(boolean enabled) {
-        FileOutputStream outputStream;
-        try {
-            outputStream = getBlockOutputStream();
-        } catch (IOException e) {
-            Slog.e(TAG, "partition not available", e);
-            return;
-        }
 
         try {
-            FileChannel channel = outputStream.getChannel();
+            FileChannel channel = getBlockOutputChannel();
 
             channel.position(getBlockDeviceSize() - 1);
 
@@ -417,13 +401,12 @@
             data.put(enabled ? (byte) 1 : (byte) 0);
             data.flip();
             channel.write(data);
-            outputStream.flush();
+            channel.force(true);
         } catch (IOException e) {
             Slog.e(TAG, "unable to access persistent partition", e);
             return;
         } finally {
             SystemProperties.set(OEM_UNLOCK_PROP, enabled ? "1" : "0");
-            IoUtils.closeQuietly(outputStream);
         }
     }
 
@@ -477,35 +460,32 @@
                 return (int) -maxBlockSize;
             }
 
-            DataOutputStream outputStream;
+            FileChannel channel;
             try {
-                outputStream = new DataOutputStream(getBlockOutputStream());
+                channel = getBlockOutputChannel();
             } catch (IOException e) {
                 Slog.e(TAG, "partition not available?", e);
-                return -1;
+               return -1;
             }
 
-            ByteBuffer headerAndData = ByteBuffer.allocate(data.length + HEADER_SIZE);
+            ByteBuffer headerAndData = ByteBuffer.allocate(
+                                           data.length + HEADER_SIZE + DIGEST_SIZE_BYTES);
+            headerAndData.put(new byte[DIGEST_SIZE_BYTES]);
             headerAndData.putInt(PARTITION_TYPE_MARKER);
             headerAndData.putInt(data.length);
             headerAndData.put(data);
-
+            headerAndData.flip();
             synchronized (mLock) {
                 if (!mIsWritable) {
-                    IoUtils.closeQuietly(outputStream);
                     return -1;
                 }
 
                 try {
-                    byte[] checksum = new byte[DIGEST_SIZE_BYTES];
-                    outputStream.write(checksum, 0, DIGEST_SIZE_BYTES);
-                    outputStream.write(headerAndData.array());
-                    outputStream.flush();
+                    channel.write(headerAndData);
+                    channel.force(true);
                 } catch (IOException e) {
                     Slog.e(TAG, "failed writing to the persistent data block", e);
                     return -1;
-                } finally {
-                    IoUtils.closeQuietly(outputStream);
                 }
 
                 if (computeAndWriteDigestLocked()) {
@@ -565,17 +545,6 @@
         public void wipe() {
             enforceOemUnlockWritePermission();
 
-            if (mIsRunningDSU) {
-                File sandbox = new File(GSI_SANDBOX);
-                if (sandbox.exists()) {
-                    if (sandbox.delete()) {
-                        mDataBlockFile = SystemProperties.get(PERSISTENT_DATA_BLOCK_PROP);
-                    } else {
-                        Slog.e(TAG, "Failed to wipe sandbox persistent data block");
-                    }
-                }
-                return;
-            }
             synchronized (mLock) {
                 int ret = nativeWipe(mDataBlockFile);
 
@@ -733,28 +702,18 @@
         }
 
         private void writeDataBuffer(long offset, ByteBuffer dataBuffer) {
-            FileOutputStream outputStream;
-            try {
-                outputStream = getBlockOutputStream();
-            } catch (IOException e) {
-                Slog.e(TAG, "partition not available", e);
-                return;
-            }
             synchronized (mLock) {
                 if (!mIsWritable) {
-                    IoUtils.closeQuietly(outputStream);
                     return;
                 }
                 try {
-                    FileChannel channel = outputStream.getChannel();
+                    FileChannel channel = getBlockOutputChannel();
                     channel.position(offset);
                     channel.write(dataBuffer);
-                    outputStream.flush();
+                    channel.force(true);
                 } catch (IOException e) {
                     Slog.e(TAG, "unable to access persistent partition", e);
                     return;
-                } finally {
-                    IoUtils.closeQuietly(outputStream);
                 }
 
                 computeAndWriteDigestLocked();
diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java
index 0affda4..d9ecdda 100644
--- a/services/core/java/com/android/server/TelephonyRegistry.java
+++ b/services/core/java/com/android/server/TelephonyRegistry.java
@@ -313,7 +313,7 @@
 
     private final LocalLog mListenLog = new LocalLog(200);
 
-    private List<PhysicalChannelConfig> mPhysicalChannelConfigs;
+    private List<List<PhysicalChannelConfig>> mPhysicalChannelConfigs;
 
     private boolean[] mIsDataEnabled;
 
@@ -583,9 +583,9 @@
             mPreciseDataConnectionStates.add(new ArrayMap<>());
             mBarringInfo.add(i, new BarringInfo());
             mTelephonyDisplayInfos[i] = null;
-            mPhysicalChannelConfigs.add(i, new PhysicalChannelConfig.Builder().build());
             mIsDataEnabled[i] = false;
             mDataEnabledReason[i] = TelephonyManager.DATA_ENABLED_REASON_USER;
+            mPhysicalChannelConfigs.add(i, new ArrayList<>());
             mAllowedNetworkTypeReason[i] = -1;
             mAllowedNetworkTypeValue[i] = -1;
             mLinkCapacityEstimateLists.add(i, new ArrayList<>());
@@ -683,9 +683,9 @@
             mPreciseDataConnectionStates.add(new ArrayMap<>());
             mBarringInfo.add(i, new BarringInfo());
             mTelephonyDisplayInfos[i] = null;
-            mPhysicalChannelConfigs.add(i, new PhysicalChannelConfig.Builder().build());
             mIsDataEnabled[i] = false;
             mDataEnabledReason[i] = TelephonyManager.DATA_ENABLED_REASON_USER;
+            mPhysicalChannelConfigs.add(i, new ArrayList<>());
             mAllowedNetworkTypeReason[i] = -1;
             mAllowedNetworkTypeValue[i] = -1;
             mLinkCapacityEstimateLists.add(i, new ArrayList<>());
@@ -1176,8 +1176,9 @@
                     try {
                         r.callback.onPhysicalChannelConfigChanged(
                                 shouldSanitizeLocationForPhysicalChannelConfig(r)
-                                        ? getLocationSanitizedConfigs(mPhysicalChannelConfigs)
-                                        : mPhysicalChannelConfigs);
+                                        ? getLocationSanitizedConfigs(
+                                                mPhysicalChannelConfigs.get(phoneId))
+                                        : mPhysicalChannelConfigs.get(phoneId));
                     } catch (RemoteException ex) {
                         remove(r.binder);
                     }
@@ -2369,11 +2370,12 @@
      * Send a notification to registrants that the configs of physical channel has changed for
      * a particular subscription.
      *
+     * @param phoneId the phone id.
      * @param subId the subId
      * @param configs a list of {@link PhysicalChannelConfig}, the configs of physical channel.
      */
-    public void notifyPhysicalChannelConfigForSubscriber(
-            int subId, List<PhysicalChannelConfig> configs) {
+    public void notifyPhysicalChannelConfigForSubscriber(int phoneId, int subId,
+            List<PhysicalChannelConfig> configs) {
         if (!checkNotifyPermission("notifyPhysicalChannelConfig()")) {
             return;
         }
@@ -2385,9 +2387,8 @@
         }
 
         synchronized (mRecords) {
-            int phoneId = SubscriptionManager.getPhoneId(subId);
             if (validatePhoneId(phoneId)) {
-                mPhysicalChannelConfigs.set(phoneId, configs.get(phoneId));
+                mPhysicalChannelConfigs.set(phoneId, configs);
                 for (Record r : mRecords) {
                     if (r.matchTelephonyCallbackEvent(
                             TelephonyCallback.EVENT_PHYSICAL_CHANNEL_CONFIG_CHANGED)
@@ -2594,6 +2595,7 @@
                 pw.println("mDataEnabledReason=" + mDataEnabledReason);
                 pw.println("mAllowedNetworkTypeReason=" + mAllowedNetworkTypeReason[i]);
                 pw.println("mAllowedNetworkTypeValue=" + mAllowedNetworkTypeValue[i]);
+                pw.println("mPhysicalChannelConfigs=" + mPhysicalChannelConfigs.get(i));
                 pw.println("mLinkCapacityEstimateList=" + mLinkCapacityEstimateLists.get(i));
                 pw.decreaseIndent();
             }
@@ -2604,7 +2606,6 @@
             pw.println("mEmergencyNumberList=" + mEmergencyNumberList);
             pw.println("mDefaultPhoneId=" + mDefaultPhoneId);
             pw.println("mDefaultSubId=" + mDefaultSubId);
-            pw.println("mPhysicalChannelConfigs=" + mPhysicalChannelConfigs);
 
             pw.decreaseIndent();
 
diff --git a/services/core/java/com/android/server/VcnManagementService.java b/services/core/java/com/android/server/VcnManagementService.java
index 434e924..9c10658 100644
--- a/services/core/java/com/android/server/VcnManagementService.java
+++ b/services/core/java/com/android/server/VcnManagementService.java
@@ -16,6 +16,9 @@
 
 package com.android.server;
 
+import static android.Manifest.permission.DUMP;
+import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED;
+import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
 import static android.net.vcn.VcnManager.VCN_STATUS_CODE_ACTIVE;
 import static android.net.vcn.VcnManager.VCN_STATUS_CODE_INACTIVE;
 import static android.net.vcn.VcnManager.VCN_STATUS_CODE_NOT_CONFIGURED;
@@ -35,12 +38,13 @@
 import android.content.IntentFilter;
 import android.net.ConnectivityManager;
 import android.net.LinkProperties;
+import android.net.Network;
 import android.net.NetworkCapabilities;
+import android.net.NetworkRequest;
 import android.net.vcn.IVcnManagementService;
 import android.net.vcn.IVcnStatusCallback;
 import android.net.vcn.IVcnUnderlyingNetworkPolicyListener;
 import android.net.vcn.VcnConfig;
-import android.net.vcn.VcnManager;
 import android.net.vcn.VcnManager.VcnErrorCode;
 import android.net.vcn.VcnManager.VcnStatusCode;
 import android.net.vcn.VcnUnderlyingNetworkPolicy;
@@ -66,6 +70,7 @@
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.annotations.VisibleForTesting.Visibility;
+import com.android.internal.util.IndentingPrintWriter;
 import com.android.net.module.util.LocationPermissionChecker;
 import com.android.server.vcn.TelephonySubscriptionTracker;
 import com.android.server.vcn.Vcn;
@@ -73,7 +78,9 @@
 import com.android.server.vcn.VcnNetworkProvider;
 import com.android.server.vcn.util.PersistableBundleUtils;
 
+import java.io.FileDescriptor;
 import java.io.IOException;
+import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -162,8 +169,8 @@
     @NonNull private final VcnContext mVcnContext;
     @NonNull private final BroadcastReceiver mPkgChangeReceiver;
 
-    /** Can only be assigned when {@link #systemReady()} is called, since it uses AppOpsManager. */
-    @Nullable private LocationPermissionChecker mLocationPermissionChecker;
+    @NonNull
+    private final TrackingNetworkCallback mTrackingNetworkCallback = new TrackingNetworkCallback();
 
     @GuardedBy("mLock")
     @NonNull
@@ -358,8 +365,11 @@
     public void systemReady() {
         mContext.getSystemService(ConnectivityManager.class)
                 .registerNetworkProvider(mNetworkProvider);
+        mContext.getSystemService(ConnectivityManager.class)
+                .registerNetworkCallback(
+                        new NetworkRequest.Builder().clearCapabilities().build(),
+                        mTrackingNetworkCallback);
         mTelephonySubscriptionTracker.register();
-        mLocationPermissionChecker = mDeps.newLocationPermissionChecker(mVcnContext.getContext());
     }
 
     private void enforcePrimaryUser() {
@@ -532,15 +542,7 @@
 
         if (mVcns.containsKey(subscriptionGroup)) {
             final Vcn vcn = mVcns.get(subscriptionGroup);
-            final boolean isActive = vcn.isActive();
             vcn.updateConfig(config);
-
-            // Only notify VcnStatusCallbacks if this VCN was previously in Safe Mode
-            if (!isActive) {
-                // TODO(b/181789060): invoke asynchronously after Vcn notifies through VcnCallback
-                notifyAllPermissionedStatusCallbacksLocked(
-                        subscriptionGroup, VCN_STATUS_CODE_ACTIVE);
-            }
         } else {
             startVcnLocked(subscriptionGroup, config);
         }
@@ -769,7 +771,7 @@
             synchronized (mLock) {
                 final Vcn vcn = mVcns.get(subGrp);
                 if (vcn != null) {
-                    if (vcn.isActive()) {
+                    if (vcn.getStatus() == VCN_STATUS_CODE_ACTIVE) {
                         isVcnManagedNetwork = true;
                     }
 
@@ -792,8 +794,9 @@
                         NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED);
             }
 
+            final NetworkCapabilities result = ncBuilder.build();
             return new VcnUnderlyingNetworkPolicy(
-                    false /* isTearDownRequested */, ncBuilder.build());
+                    mTrackingNetworkCallback.requiresRestartForCarrierWifi(result), result);
         });
     }
 
@@ -833,13 +836,6 @@
             return false;
         }
 
-        if (!mLocationPermissionChecker.checkLocationPermission(
-                cbInfo.mPkgName,
-                "VcnStatusCallback" /* featureId */,
-                cbInfo.mUid,
-                null /* message */)) {
-            return false;
-        }
         return true;
     }
 
@@ -880,20 +876,23 @@
                 // now that callback is registered, send it the VCN's current status
                 final VcnConfig vcnConfig = mConfigs.get(subGroup);
                 final Vcn vcn = mVcns.get(subGroup);
-                final int vcnStatus;
+                final int vcnStatus =
+                        vcn == null ? VCN_STATUS_CODE_NOT_CONFIGURED : vcn.getStatus();
+                final int resultStatus;
                 if (vcnConfig == null || !isCallbackPermissioned(cbInfo, subGroup)) {
-                    vcnStatus = VcnManager.VCN_STATUS_CODE_NOT_CONFIGURED;
+                    resultStatus = VCN_STATUS_CODE_NOT_CONFIGURED;
                 } else if (vcn == null) {
-                    vcnStatus = VcnManager.VCN_STATUS_CODE_INACTIVE;
-                } else if (vcn.isActive()) {
-                    vcnStatus = VcnManager.VCN_STATUS_CODE_ACTIVE;
+                    resultStatus = VCN_STATUS_CODE_INACTIVE;
+                } else if (vcnStatus == VCN_STATUS_CODE_ACTIVE
+                        || vcnStatus == VCN_STATUS_CODE_SAFE_MODE) {
+                    resultStatus = vcnStatus;
                 } else {
-                    // TODO(b/181789060): create Vcn.getStatus() and Log.WTF() for unknown status
-                    vcnStatus = VcnManager.VCN_STATUS_CODE_SAFE_MODE;
+                    Slog.wtf(TAG, "Unknown VCN status: " + vcnStatus);
+                    resultStatus = VCN_STATUS_CODE_NOT_CONFIGURED;
                 }
 
                 try {
-                    cbInfo.mCallback.onVcnStatusChanged(vcnStatus);
+                    cbInfo.mCallback.onVcnStatusChanged(resultStatus);
                 } catch (RemoteException e) {
                     Slog.d(TAG, "VcnStatusCallback threw on VCN status change", e);
                 }
@@ -923,11 +922,38 @@
         }
     }
 
+    /**
+     * Dumps the state of the VcnManagementService for logging and debugging purposes.
+     *
+     * <p>PII and credentials MUST NEVER be dumped here.
+     */
+    @Override
+    protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) {
+        mContext.enforceCallingOrSelfPermission(DUMP, TAG);
+
+        final IndentingPrintWriter pw = new IndentingPrintWriter(writer, "  ");
+
+        pw.println("VcnManagementService dump:");
+        pw.increaseIndent();
+
+        mNetworkProvider.dump(pw);
+
+        synchronized (mLock) {
+            pw.println("mVcns:");
+            for (Vcn vcn : mVcns.values()) {
+                vcn.dump(pw);
+            }
+            pw.println();
+        }
+
+        pw.decreaseIndent();
+    }
+
     // TODO(b/180452282): Make name more generic and implement directly with VcnManagementService
     /** Callback for Vcn signals sent up to VcnManagementService. */
     public interface VcnCallback {
-        /** Called by a Vcn to signal that it has entered safe mode. */
-        void onEnteredSafeMode();
+        /** Called by a Vcn to signal that its safe mode status has changed. */
+        void onSafeModeStatusChanged(boolean isInSafeMode);
 
         /** Called by a Vcn to signal that an error occurred. */
         void onGatewayConnectionError(
@@ -937,6 +963,49 @@
                 @Nullable String exceptionMessage);
     }
 
+    /**
+     * TrackingNetworkCallback tracks all active networks
+     *
+     * <p>This is used to ensure that no underlying networks have immutable capabilities changed
+     * without requiring a Network restart.
+     */
+    private class TrackingNetworkCallback extends ConnectivityManager.NetworkCallback {
+        private final Map<Network, NetworkCapabilities> mCaps = new ArrayMap<>();
+
+        @Override
+        public void onCapabilitiesChanged(Network network, NetworkCapabilities caps) {
+            synchronized (mCaps) {
+                mCaps.put(network, caps);
+            }
+        }
+
+        @Override
+        public void onLost(Network network) {
+            synchronized (mCaps) {
+                mCaps.remove(network);
+            }
+        }
+
+        private boolean requiresRestartForCarrierWifi(NetworkCapabilities caps) {
+            if (!caps.hasTransport(TRANSPORT_WIFI) || caps.getSubIds() == null) {
+                return false;
+            }
+
+            synchronized (mCaps) {
+                for (NetworkCapabilities existing : mCaps.values()) {
+                    if (existing.hasTransport(TRANSPORT_WIFI)
+                            && caps.getSubIds().equals(existing.getSubIds())) {
+                        // Restart if any immutable capabilities have changed
+                        return existing.hasCapability(NET_CAPABILITY_NOT_RESTRICTED)
+                                != caps.hasCapability(NET_CAPABILITY_NOT_RESTRICTED);
+                    }
+                }
+            }
+
+            return false;
+        }
+    }
+
     /** VcnCallbackImpl for Vcn signals sent up to VcnManagementService. */
     private class VcnCallbackImpl implements VcnCallback {
         @NonNull private final ParcelUuid mSubGroup;
@@ -946,15 +1015,18 @@
         }
 
         @Override
-        public void onEnteredSafeMode() {
+        public void onSafeModeStatusChanged(boolean isInSafeMode) {
             synchronized (mLock) {
                 // Ignore if this subscription group doesn't exist anymore
                 if (!mVcns.containsKey(mSubGroup)) {
                     return;
                 }
 
+                final int status =
+                        isInSafeMode ? VCN_STATUS_CODE_SAFE_MODE : VCN_STATUS_CODE_ACTIVE;
+
                 notifyAllPolicyListenersLocked();
-                notifyAllPermissionedStatusCallbacksLocked(mSubGroup, VCN_STATUS_CODE_SAFE_MODE);
+                notifyAllPermissionedStatusCallbacksLocked(mSubGroup, status);
             }
         }
 
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index cc5a25a..2744f11 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -236,6 +236,7 @@
 import android.hardware.display.DisplayManagerInternal;
 import android.location.LocationManager;
 import android.media.audiofx.AudioEffect;
+import android.net.ConnectivityManager;
 import android.net.Proxy;
 import android.net.Uri;
 import android.os.AppZygote;
@@ -16458,7 +16459,7 @@
                         stats.noteCurrentTimeChangedLocked();
                     }
                     break;
-                case Intent.ACTION_CLEAR_DNS_CACHE:
+                case ConnectivityManager.ACTION_CLEAR_DNS_CACHE:
                     mHandler.sendEmptyMessage(CLEAR_DNS_CACHE_MSG);
                     break;
                 case Proxy.PROXY_CHANGE_ACTION:
diff --git a/services/core/java/com/android/server/am/ProcessList.java b/services/core/java/com/android/server/am/ProcessList.java
index 1667901..444418c 100644
--- a/services/core/java/com/android/server/am/ProcessList.java
+++ b/services/core/java/com/android/server/am/ProcessList.java
@@ -1722,12 +1722,13 @@
 
     private boolean enableNativeHeapZeroInit(ProcessRecord app) {
         // Look at the process attribute first.
-        if (app.processInfo != null && app.processInfo.nativeHeapZeroInit != null) {
-            return app.processInfo.nativeHeapZeroInit;
+        if (app.processInfo != null
+                && app.processInfo.nativeHeapZeroInitialized != ApplicationInfo.ZEROINIT_DEFAULT) {
+            return app.processInfo.nativeHeapZeroInitialized == ApplicationInfo.ZEROINIT_ENABLED;
         }
         // Then at the application attribute.
-        if (app.info.isNativeHeapZeroInit() != null) {
-            return app.info.isNativeHeapZeroInit();
+        if (app.info.getNativeHeapZeroInitialized() != ApplicationInfo.ZEROINIT_DEFAULT) {
+            return app.info.getNativeHeapZeroInitialized() == ApplicationInfo.ZEROINIT_ENABLED;
         }
         // Compat feature last.
         if (mPlatformCompat.isChangeEnabled(NATIVE_HEAP_ZERO_INIT, app.info)) {
diff --git a/services/core/java/com/android/server/am/ProcessRecord.java b/services/core/java/com/android/server/am/ProcessRecord.java
index 4775541..5ebf603 100644
--- a/services/core/java/com/android/server/am/ProcessRecord.java
+++ b/services/core/java/com/android/server/am/ProcessRecord.java
@@ -650,7 +650,7 @@
                 if (procInfo != null && procInfo.deniedPermissions == null
                         && procInfo.gwpAsanMode == ApplicationInfo.GWP_ASAN_DEFAULT
                         && procInfo.memtagMode == ApplicationInfo.MEMTAG_DEFAULT
-                        && procInfo.nativeHeapZeroInit == null) {
+                        && procInfo.nativeHeapZeroInitialized == ApplicationInfo.ZEROINIT_DEFAULT) {
                     // If this process hasn't asked for permissions to be denied, or for a
                     // non-default GwpAsan mode, or any other non-default setting, then we don't
                     // care about it.
diff --git a/services/core/java/com/android/server/appop/AppOpsService.java b/services/core/java/com/android/server/appop/AppOpsService.java
index f2236d7..db8dc71 100644
--- a/services/core/java/com/android/server/appop/AppOpsService.java
+++ b/services/core/java/com/android/server/appop/AppOpsService.java
@@ -3003,8 +3003,8 @@
 
         // This is a workaround for R QPR, new API change is not allowed. We only allow the current
         // voice recognizer is also the voice interactor to noteproxy op.
-        final boolean isTrustVoiceServiceProxy =
-                AppOpsManager.isTrustedVoiceServiceProxy(mContext, proxyPackageName, code);
+        final boolean isTrustVoiceServiceProxy = AppOpsManager.isTrustedVoiceServiceProxy(mContext,
+                proxyPackageName, code, UserHandle.getUserId(proxyUid));
         final boolean isSelfBlame = Binder.getCallingUid() == proxiedUid;
         final boolean isProxyTrusted = mContext.checkPermission(
                 Manifest.permission.UPDATE_APP_OPS_STATS, -1, proxyUid)
diff --git a/services/core/java/com/android/server/clipboard/ClipboardService.java b/services/core/java/com/android/server/clipboard/ClipboardService.java
index 72160c2..f4e06d3 100644
--- a/services/core/java/com/android/server/clipboard/ClipboardService.java
+++ b/services/core/java/com/android/server/clipboard/ClipboardService.java
@@ -52,10 +52,6 @@
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.provider.Settings;
-import android.system.ErrnoException;
-import android.system.Os;
-import android.system.OsConstants;
-import android.system.VmSocketAddress;
 import android.text.TextUtils;
 import android.util.Slog;
 import android.util.SparseArray;
@@ -67,128 +63,9 @@
 import com.android.server.uri.UriGrantsManagerInternal;
 import com.android.server.wm.WindowManagerInternal;
 
-import java.io.FileDescriptor;
-import java.io.InterruptedIOException;
-import java.net.SocketException;
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
-
-// The following class is Android Emulator specific. It is used to read and
-// write contents of the host system's clipboard.
-class HostClipboardMonitor implements Runnable {
-    public interface HostClipboardCallback {
-        void onHostClipboardUpdated(String contents);
-    }
-
-    private FileDescriptor mPipe = null;
-    private HostClipboardCallback mHostClipboardCallback;
-    private static final String PIPE_NAME = "pipe:clipboard";
-    private static final int HOST_PORT = 5000;
-
-    private static byte[] createOpenHandshake() {
-        // String.getBytes doesn't include the null terminator,
-        // but the QEMU pipe device requires the pipe service name
-        // to be null-terminated.
-
-        final byte[] bits = Arrays.copyOf(PIPE_NAME.getBytes(), PIPE_NAME.length() + 1);
-        bits[PIPE_NAME.length()] = 0;
-        return bits;
-    }
-
-    private boolean openPipe() {
-        try {
-            final FileDescriptor fd = Os.socket(OsConstants.AF_VSOCK, OsConstants.SOCK_STREAM, 0);
-
-            try {
-                Os.connect(fd, new VmSocketAddress(HOST_PORT, OsConstants.VMADDR_CID_HOST));
-
-                final byte[] handshake = createOpenHandshake();
-                Os.write(fd, handshake, 0, handshake.length);
-                mPipe = fd;
-                return true;
-            } catch (ErrnoException | SocketException | InterruptedIOException e) {
-                Os.close(fd);
-            }
-        } catch (ErrnoException e) {
-        }
-
-        return false;
-    }
-
-    private void closePipe() {
-        try {
-            final FileDescriptor fd = mPipe;
-            mPipe = null;
-            if (fd != null) {
-                Os.close(fd);
-            }
-        } catch (ErrnoException ignore) {
-        }
-    }
-
-    private byte[] receiveMessage() throws ErrnoException, InterruptedIOException {
-        final byte[] lengthBits = new byte[4];
-        Os.read(mPipe, lengthBits, 0, lengthBits.length);
-
-        final ByteBuffer bb = ByteBuffer.wrap(lengthBits);
-        bb.order(ByteOrder.LITTLE_ENDIAN);
-        final int msgLen = bb.getInt();
-
-        final byte[] msg = new byte[msgLen];
-        Os.read(mPipe, msg, 0, msg.length);
-
-        return msg;
-    }
-
-    private void sendMessage(byte[] msg) throws ErrnoException, InterruptedIOException {
-        final byte[] lengthBits = new byte[4];
-        final ByteBuffer bb = ByteBuffer.wrap(lengthBits);
-        bb.order(ByteOrder.LITTLE_ENDIAN);
-        bb.putInt(msg.length);
-
-        Os.write(mPipe, lengthBits, 0, lengthBits.length);
-        Os.write(mPipe, msg, 0, msg.length);
-    }
-
-    public HostClipboardMonitor(HostClipboardCallback cb) {
-        mHostClipboardCallback = cb;
-    }
-
-    @Override
-    public void run() {
-        while (!Thread.interrupted()) {
-            try {
-                // There's no guarantee that QEMU pipes will be ready at the moment
-                // this method is invoked. We simply try to get the pipe open and
-                // retry on failure indefinitely.
-                while ((mPipe == null) && !openPipe()) {
-                    Thread.sleep(100);
-                }
-
-                final byte[] receivedData = receiveMessage();
-                mHostClipboardCallback.onHostClipboardUpdated(
-                    new String(receivedData));
-            } catch (ErrnoException | InterruptedIOException e) {
-                closePipe();
-            } catch (InterruptedException e) {
-            }
-        }
-    }
-
-    public void setHostClipboard(String content) {
-        try {
-            if (mPipe != null) {
-                sendMessage(content.getBytes());
-            }
-        } catch (ErrnoException | InterruptedIOException e) {
-            Slog.e("HostClipboardMonitor",
-                   "Failed to set host clipboard " + e.getMessage());
-        }
-    }
-}
+import java.util.function.Consumer;
 
 /**
  * Implementation of the clipboard for copy and paste.
@@ -214,8 +91,7 @@
     private final ContentCaptureManagerInternal mContentCaptureInternal;
     private final AutofillManagerInternal mAutofillInternal;
     private final IBinder mPermissionOwner;
-    private HostClipboardMonitor mHostClipboardMonitor = null;
-    private Thread mHostMonitorThread = null;
+    private final Consumer<ClipData> mEmulatorClipboardMonitor;
 
     private final SparseArray<PerUserClipboard> mClipboards = new SparseArray<>();
 
@@ -237,22 +113,13 @@
         final IBinder permOwner = mUgmInternal.newUriPermissionOwner("clipboard");
         mPermissionOwner = permOwner;
         if (IS_EMULATOR) {
-            mHostClipboardMonitor = new HostClipboardMonitor(
-                new HostClipboardMonitor.HostClipboardCallback() {
-                    @Override
-                    public void onHostClipboardUpdated(String contents){
-                        ClipData clip =
-                            new ClipData("host clipboard",
-                                         new String[]{"text/plain"},
-                                         new ClipData.Item(contents));
-                        synchronized(mClipboards) {
-                            setPrimaryClipInternal(getClipboard(0), clip,
-                                    android.os.Process.SYSTEM_UID);
-                        }
-                    }
-                });
-            mHostMonitorThread = new Thread(mHostClipboardMonitor);
-            mHostMonitorThread.start();
+            mEmulatorClipboardMonitor = new EmulatorClipboardMonitor((clip) -> {
+                synchronized (this) {
+                    setPrimaryClipInternal(getClipboard(0), clip, android.os.Process.SYSTEM_UID);
+                }
+            });
+        } else {
+            mEmulatorClipboardMonitor = (clip) -> {};
         }
     }
 
@@ -547,18 +414,7 @@
     }
 
     void setPrimaryClipInternal(@Nullable ClipData clip, int uid) {
-        // Push clipboard to host, if any
-        if (mHostClipboardMonitor != null) {
-            if (clip == null) {
-                // Someone really wants the clipboard cleared, so push empty
-                mHostClipboardMonitor.setHostClipboard("");
-            } else if (clip.getItemCount() > 0) {
-                final CharSequence text = clip.getItemAt(0).getText();
-                if (text != null) {
-                    mHostClipboardMonitor.setHostClipboard(text.toString());
-                }
-            }
-        }
+        mEmulatorClipboardMonitor.accept(clip);
 
         // Update this user
         final int userId = UserHandle.getUserId(uid);
diff --git a/services/core/java/com/android/server/clipboard/EmulatorClipboardMonitor.java b/services/core/java/com/android/server/clipboard/EmulatorClipboardMonitor.java
new file mode 100644
index 0000000..62b701a
--- /dev/null
+++ b/services/core/java/com/android/server/clipboard/EmulatorClipboardMonitor.java
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.clipboard;
+
+import android.annotation.Nullable;
+import android.content.ClipData;
+import android.system.ErrnoException;
+import android.system.Os;
+import android.system.OsConstants;
+import android.system.VmSocketAddress;
+import android.util.Slog;
+
+import java.io.FileDescriptor;
+import java.io.InterruptedIOException;
+import java.net.SocketException;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.Arrays;
+import java.util.function.Consumer;
+
+// The following class is Android Emulator specific. It is used to read and
+// write contents of the host system's clipboard.
+class EmulatorClipboardMonitor implements Consumer<ClipData> {
+    private static final String TAG = "EmulatorClipboardMonitor";
+    private static final String PIPE_NAME = "pipe:clipboard";
+    private static final int HOST_PORT = 5000;
+    private final Thread mHostMonitorThread;
+    private FileDescriptor mPipe = null;
+
+    private static byte[] createOpenHandshake() {
+        // String.getBytes doesn't include the null terminator,
+        // but the QEMU pipe device requires the pipe service name
+        // to be null-terminated.
+
+        final byte[] bits = Arrays.copyOf(PIPE_NAME.getBytes(), PIPE_NAME.length() + 1);
+        bits[PIPE_NAME.length()] = 0;
+        return bits;
+    }
+
+    private boolean isPipeOpened() {
+        return mPipe != null;
+    }
+
+    private synchronized boolean openPipe() {
+        if (mPipe != null) {
+            return true;
+        }
+
+        try {
+            final FileDescriptor fd = Os.socket(OsConstants.AF_VSOCK, OsConstants.SOCK_STREAM, 0);
+
+            try {
+                Os.connect(fd, new VmSocketAddress(HOST_PORT, OsConstants.VMADDR_CID_HOST));
+
+                final byte[] handshake = createOpenHandshake();
+                Os.write(fd, handshake, 0, handshake.length);
+                mPipe = fd;
+                return true;
+            } catch (ErrnoException | SocketException | InterruptedIOException e) {
+                Os.close(fd);
+            }
+        } catch (ErrnoException e) {
+        }
+
+        return false;
+    }
+
+    private synchronized void closePipe() {
+        try {
+            final FileDescriptor fd = mPipe;
+            mPipe = null;
+            if (fd != null) {
+                Os.close(fd);
+            }
+        } catch (ErrnoException ignore) {
+        }
+    }
+
+    private byte[] receiveMessage() throws ErrnoException, InterruptedIOException {
+        final byte[] lengthBits = new byte[4];
+        Os.read(mPipe, lengthBits, 0, lengthBits.length);
+
+        final ByteBuffer bb = ByteBuffer.wrap(lengthBits);
+        bb.order(ByteOrder.LITTLE_ENDIAN);
+        final int msgLen = bb.getInt();
+
+        final byte[] msg = new byte[msgLen];
+        Os.read(mPipe, msg, 0, msg.length);
+
+        return msg;
+    }
+
+    private void sendMessage(final byte[] msg) throws ErrnoException, InterruptedIOException {
+        final byte[] lengthBits = new byte[4];
+        final ByteBuffer bb = ByteBuffer.wrap(lengthBits);
+        bb.order(ByteOrder.LITTLE_ENDIAN);
+        bb.putInt(msg.length);
+
+        Os.write(mPipe, lengthBits, 0, lengthBits.length);
+        Os.write(mPipe, msg, 0, msg.length);
+    }
+
+    EmulatorClipboardMonitor(final Consumer<ClipData> setAndroidClipboard) {
+        this.mHostMonitorThread = new Thread(() -> {
+            while (!Thread.interrupted()) {
+                try {
+                    // There's no guarantee that QEMU pipes will be ready at the moment
+                    // this method is invoked. We simply try to get the pipe open and
+                    // retry on failure indefinitely.
+                    while (!openPipe()) {
+                        Thread.sleep(100);
+                    }
+
+                    final byte[] receivedData = receiveMessage();
+
+                    final String str = new String(receivedData);
+                    final ClipData clip = new ClipData("host clipboard",
+                                                       new String[]{"text/plain"},
+                                                       new ClipData.Item(str));
+
+                    setAndroidClipboard.accept(clip);
+                } catch (ErrnoException | InterruptedIOException e) {
+                    closePipe();
+                } catch (InterruptedException | IllegalArgumentException e) {
+                }
+            }
+        });
+
+        this.mHostMonitorThread.start();
+    }
+
+    @Override
+    public void accept(final @Nullable ClipData clip) {
+        if (clip == null) {
+            setHostClipboardImpl("");
+        } else if (clip.getItemCount() > 0) {
+            final CharSequence text = clip.getItemAt(0).getText();
+            if (text != null) {
+                setHostClipboardImpl(text.toString());
+            }
+        }
+    }
+
+    private void setHostClipboardImpl(final String value) {
+        try {
+            if (isPipeOpened()) {
+                sendMessage(value.getBytes());
+            }
+        } catch (ErrnoException | InterruptedIOException e) {
+            Slog.e(TAG, "Failed to set host clipboard " + e.getMessage());
+        } catch (IllegalArgumentException e) {
+        }
+    }
+}
diff --git a/services/core/java/com/android/server/clipboard/OWNERS b/services/core/java/com/android/server/clipboard/OWNERS
new file mode 100644
index 0000000..5449df9
--- /dev/null
+++ b/services/core/java/com/android/server/clipboard/OWNERS
@@ -0,0 +1 @@
+per-file EmulatorClipboardMonitor.java = bohu@google.com,lfy@google.com,rkir@google.com
diff --git a/services/core/java/com/android/server/connectivity/DnsManager.java b/services/core/java/com/android/server/connectivity/DnsManager.java
index ffeb77d..cf4fe1e 100644
--- a/services/core/java/com/android/server/connectivity/DnsManager.java
+++ b/services/core/java/com/android/server/connectivity/DnsManager.java
@@ -420,7 +420,7 @@
         /*
          * Tell the VMs to toss their DNS caches
          */
-        final Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE);
+        final Intent intent = new Intent(ConnectivityManager.ACTION_CLEAR_DNS_CACHE);
         intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
         /*
          * Connectivity events can happen before boot has completed ...
diff --git a/services/core/java/com/android/server/connectivity/PermissionMonitor.java b/services/core/java/com/android/server/connectivity/PermissionMonitor.java
index 3711679..7837e6e 100644
--- a/services/core/java/com/android/server/connectivity/PermissionMonitor.java
+++ b/services/core/java/com/android/server/connectivity/PermissionMonitor.java
@@ -286,7 +286,7 @@
             for (UserHandle user : users) {
                 if (user == null) continue;
 
-                list.add(UserHandle.getUid(user, app.getKey()));
+                list.add(user.getUid(app.getKey()));
             }
         }
         try {
@@ -555,7 +555,7 @@
                     final UserHandle handle = UserHandle.of(userId);
                     if (handle == null) continue;
 
-                    final int uid = UserHandle.getUid(handle, appId);
+                    final int uid = handle.getUid(appId);
                     if (range.contains(uid)) {
                         result.add(uid);
                     }
diff --git a/services/core/java/com/android/server/connectivity/Vpn.java b/services/core/java/com/android/server/connectivity/Vpn.java
index e5ce4f0..0a76bdc 100644
--- a/services/core/java/com/android/server/connectivity/Vpn.java
+++ b/services/core/java/com/android/server/connectivity/Vpn.java
@@ -101,7 +101,6 @@
 import android.provider.Settings;
 import android.security.Credentials;
 import android.security.KeyStore2;
-import android.security.keystore.AndroidKeyStoreProvider;
 import android.security.keystore.KeyProperties;
 import android.system.keystore2.Domain;
 import android.system.keystore2.KeyDescriptor;
@@ -463,7 +462,7 @@
                 .addTransportType(NetworkCapabilities.TRANSPORT_VPN)
                 .removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VPN)
                 .addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VCN_MANAGED)
-                .setTransportInfo(new VpnTransportInfo(VpnManager.TYPE_VPN_NONE))
+                .setTransportInfo(new VpnTransportInfo(VpnManager.TYPE_VPN_NONE, null))
                 .build();
 
         loadAlwaysOnPackage();
@@ -527,7 +526,7 @@
     private void resetNetworkCapabilities() {
         mNetworkCapabilities = new NetworkCapabilities.Builder(mNetworkCapabilities)
                 .setUids(null)
-                .setTransportInfo(new VpnTransportInfo(VpnManager.TYPE_VPN_NONE))
+                .setTransportInfo(new VpnTransportInfo(VpnManager.TYPE_VPN_NONE, null))
                 .build();
     }
 
@@ -1257,7 +1256,7 @@
         capsBuilder.setUids(createUserAndRestrictedProfilesRanges(mUserId,
                 mConfig.allowedApplications, mConfig.disallowedApplications));
 
-        capsBuilder.setTransportInfo(new VpnTransportInfo(getActiveVpnType()));
+        capsBuilder.setTransportInfo(new VpnTransportInfo(getActiveVpnType(), mConfig.session));
 
         // Only apps targeting Q and above can explicitly declare themselves as metered.
         // These VPNs are assumed metered unless they state otherwise.
@@ -2055,10 +2054,6 @@
         if (alias == null) {
             return null;
         }
-        // If Keystore 2.0 is not enabled the legacy private key prefix is used.
-        if (!AndroidKeyStoreProvider.isKeystore2Enabled()) {
-            return Credentials.USER_PRIVATE_KEY + alias;
-        }
         final KeyStore2 keystore2 = KeyStore2.getInstance();
 
         KeyDescriptor key = new KeyDescriptor();
diff --git a/services/core/java/com/android/server/hdmi/ArcTerminationActionFromAvr.java b/services/core/java/com/android/server/hdmi/ArcTerminationActionFromAvr.java
index dedf2e2..049a339 100644
--- a/services/core/java/com/android/server/hdmi/ArcTerminationActionFromAvr.java
+++ b/services/core/java/com/android/server/hdmi/ArcTerminationActionFromAvr.java
@@ -49,10 +49,7 @@
         switch (cmd.getOpcode()) {
             case Constants.MESSAGE_REPORT_ARC_TERMINATED:
                 mState = STATE_ARC_TERMINATED;
-                audioSystem().setArcStatus(false);
-                if (audioSystem().getLocalActivePort() == Constants.CEC_SWITCH_ARC) {
-                    audioSystem().routeToInputFromPortId(audioSystem().getRoutingPort());
-                }
+                audioSystem().processArcTermination();
                 finish();
                 return true;
         }
diff --git a/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystem.java b/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystem.java
index f876e1a..afaae8a 100644
--- a/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystem.java
+++ b/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystem.java
@@ -353,7 +353,6 @@
         super.disableDevice(initiatedByCec, callback);
         assertRunOnServiceThread();
         mService.unregisterTvInputCallback(mTvInputCallback);
-        // TODO(b/129088603): check disableDevice and onStandby behaviors per spec
     }
 
     @Override
@@ -557,8 +556,12 @@
     @ServiceThreadOnly
     protected boolean handleReportArcInitiate(HdmiCecMessage message) {
         assertRunOnServiceThread();
-        // TODO(amyjojo): implement report arc initiate handler
-        HdmiLogger.debug(TAG + "Stub handleReportArcInitiate");
+        /*
+         * Ideally, we should have got this response before the {@link ArcInitiationActionFromAvr}
+         * has timed out. Even if the response is late, {@link ArcInitiationActionFromAvr
+         * #handleInitiateArcTimeout()} would not have disabled ARC. So nothing needs to be done
+         * here.
+         */
         return true;
     }
 
@@ -566,8 +569,7 @@
     @ServiceThreadOnly
     protected boolean handleReportArcTermination(HdmiCecMessage message) {
         assertRunOnServiceThread();
-        // TODO(amyjojo): implement report arc terminate handler
-        HdmiLogger.debug(TAG + "Stub handleReportArcTermination");
+        processArcTermination();
         return true;
     }
 
@@ -912,6 +914,14 @@
         mArcEstablished = enabled;
     }
 
+    void processArcTermination() {
+        setArcStatus(false);
+        // Switch away from ARC input when ARC is terminated.
+        if (getLocalActivePort() == Constants.CEC_SWITCH_ARC) {
+            routeToInputFromPortId(getRoutingPort());
+        }
+    }
+
     /** Switch hardware ARC circuit in the system. */
     @ServiceThreadOnly
     private void enableAudioReturnChannel(boolean enabled) {
@@ -1035,7 +1045,6 @@
     }
 
     protected void switchToAudioInput() {
-        // TODO(b/111396634): switch input according to PROPERTY_SYSTEM_AUDIO_MODE_AUDIO_PORT
     }
 
     protected boolean isDirectConnectToTv() {
diff --git a/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceSource.java b/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceSource.java
index 470a25b..3d1a49e 100644
--- a/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceSource.java
+++ b/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceSource.java
@@ -201,7 +201,6 @@
 
     // Only source devices that react to routing control messages should implement
     // this method (e.g. a TV with built in switch).
-    // TODO(): decide which type will handle the routing when multi device type is supported
     protected void handleRoutingChangeAndInformation(int physicalAddress, HdmiCecMessage message) {
         // do nothing
     }
diff --git a/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceTv.java b/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceTv.java
index 58a7025..8bb5204 100644
--- a/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceTv.java
+++ b/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceTv.java
@@ -800,7 +800,9 @@
         assertRunOnServiceThread();
         if (!mService.isPowerStandbyOrTransient()) {
             addAndStartAction(new SystemAudioAutoInitiationAction(this, avr.getLogicalAddress()));
-            if (isConnected(avr.getPortId()) && isArcFeatureEnabled(avr.getPortId())
+            if (!isDirectConnectAddress(avr.getPhysicalAddress())) {
+                startArcAction(false);
+            } else if (isConnected(avr.getPortId()) && isArcFeatureEnabled(avr.getPortId())
                     && !hasAction(SetArcTransmissionStateAction.class)) {
                 startArcAction(true);
             }
diff --git a/services/core/java/com/android/server/location/gnss/GnssLocationProvider.java b/services/core/java/com/android/server/location/gnss/GnssLocationProvider.java
index 5bd3c57..8017a44 100644
--- a/services/core/java/com/android/server/location/gnss/GnssLocationProvider.java
+++ b/services/core/java/com/android/server/location/gnss/GnssLocationProvider.java
@@ -841,6 +841,9 @@
     }
 
     private void injectBestLocation(Location location) {
+        if (location.isFromMockProvider()) {
+            return;
+        }
         if (DEBUG) {
             Log.d(TAG, "injectBestLocation: " + location);
         }
@@ -942,6 +945,9 @@
     }
 
     private void injectLocation(Location location) {
+        if (location.isFromMockProvider()) {
+            return;
+        }
         if (location.hasAccuracy()) {
             if (DEBUG) {
                 Log.d(TAG, "injectLocation: " + location);
diff --git a/services/core/java/com/android/server/locksettings/LockSettingsService.java b/services/core/java/com/android/server/locksettings/LockSettingsService.java
index 0215188..ca5f7b3 100644
--- a/services/core/java/com/android/server/locksettings/LockSettingsService.java
+++ b/services/core/java/com/android/server/locksettings/LockSettingsService.java
@@ -99,6 +99,7 @@
 import android.security.keystore.recovery.KeyChainSnapshot;
 import android.security.keystore.recovery.RecoveryCertPath;
 import android.security.keystore.recovery.WrappedApplicationKey;
+import android.security.keystore2.AndroidKeyStoreProvider;
 import android.service.gatekeeper.GateKeeperResponse;
 import android.service.gatekeeper.IGateKeeperService;
 import android.text.TextUtils;
@@ -262,7 +263,7 @@
 
         @Override
         public void onStart() {
-            android.security.keystore2.AndroidKeyStoreProvider.install();
+            AndroidKeyStoreProvider.install();
             mLockSettingsService = new LockSettingsService(getContext());
             publishBinderService("lock_settings", mLockSettingsService);
         }
@@ -796,10 +797,6 @@
                 // Notify keystore that a new user was added.
                 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0);
                 AndroidKeyStoreMaintenance.onUserAdded(userHandle);
-                final KeyStore ks = KeyStore.getInstance();
-                final UserInfo parentInfo = mUserManager.getProfileParent(userHandle);
-                final int parentHandle = parentInfo != null ? parentInfo.id : -1;
-                ks.onUserAdded(userHandle, parentHandle);
             } else if (Intent.ACTION_USER_STARTING.equals(intent.getAction())) {
                 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0);
                 mStorage.prefetchUser(userHandle);
@@ -1262,21 +1259,14 @@
         return getCredentialTypeInternal(userId) != CREDENTIAL_TYPE_NONE;
     }
 
-    private void setKeystorePassword(byte[] password, int userHandle) {
+    @VisibleForTesting /** Note: this method is overridden in unit tests */
+    void setKeystorePassword(byte[] password, int userHandle) {
         AndroidKeyStoreMaintenance.onUserPasswordChanged(userHandle, password);
-        final KeyStore ks = KeyStore.getInstance();
-        // TODO(b/120484642): Update keystore to accept byte[] passwords
-        String passwordString = password == null ? null : new String(password);
-        ks.onUserPasswordChanged(userHandle, passwordString);
     }
 
     private void unlockKeystore(byte[] password, int userHandle) {
         if (DEBUG) Slog.v(TAG, "Unlock keystore for user: " + userHandle);
         Authorization.onLockScreenEvent(false, userHandle, password);
-        // TODO(b/120484642): Update keystore to accept byte[] passwords
-        String passwordString = password == null ? null : new String(password);
-        final KeyStore ks = KeyStore.getInstance();
-        ks.unlock(userHandle, passwordString);
     }
 
     @VisibleForTesting /** Note: this method is overridden in unit tests */
@@ -2296,8 +2286,6 @@
         mStrongAuth.removeUser(userId);
 
         AndroidKeyStoreMaintenance.onUserRemoved(userId);
-        final KeyStore ks = KeyStore.getInstance();
-        ks.onUserRemoved(userId);
         mManagedProfilePasswordCache.removePassword(userId);
 
         gateKeeperClearSecureUserId(userId);
@@ -3501,7 +3489,7 @@
         }
 
         @Override
-        public boolean armRebootEscrow() {
+        public @ArmRebootEscrowErrorCode int armRebootEscrow() {
             return mRebootEscrowManager.armRebootEscrowIfNeeded();
         }
 
diff --git a/services/core/java/com/android/server/locksettings/ManagedProfilePasswordCache.java b/services/core/java/com/android/server/locksettings/ManagedProfilePasswordCache.java
index 7950fcf..fa477c8 100644
--- a/services/core/java/com/android/server/locksettings/ManagedProfilePasswordCache.java
+++ b/services/core/java/com/android/server/locksettings/ManagedProfilePasswordCache.java
@@ -20,10 +20,10 @@
 import android.content.pm.UserInfo;
 import android.os.UserHandle;
 import android.os.UserManager;
-import android.security.keystore.AndroidKeyStoreSpi;
 import android.security.keystore.KeyGenParameterSpec;
 import android.security.keystore.KeyProperties;
 import android.security.keystore.UserNotAuthenticatedException;
+import android.security.keystore2.AndroidKeyStoreSpi;
 import android.util.Slog;
 import android.util.SparseArray;
 
diff --git a/services/core/java/com/android/server/locksettings/RebootEscrowKeyStoreManager.java b/services/core/java/com/android/server/locksettings/RebootEscrowKeyStoreManager.java
index bae029c..da29368 100644
--- a/services/core/java/com/android/server/locksettings/RebootEscrowKeyStoreManager.java
+++ b/services/core/java/com/android/server/locksettings/RebootEscrowKeyStoreManager.java
@@ -16,11 +16,10 @@
 
 package com.android.server.locksettings;
 
-import android.security.keystore.AndroidKeyStoreSpi;
 import android.security.keystore.KeyGenParameterSpec;
 import android.security.keystore.KeyProperties;
 import android.security.keystore2.AndroidKeyStoreLoadStoreParameter;
-import android.security.keystore2.AndroidKeyStoreProvider;
+import android.security.keystore2.AndroidKeyStoreSpi;
 import android.util.Slog;
 
 import com.android.internal.annotations.GuardedBy;
@@ -67,9 +66,7 @@
             KeyStore keyStore = KeyStore.getInstance(ANDROID_KEY_STORE_PROVIDER);
             KeyStore.LoadStoreParameter loadStoreParameter = null;
             // Load from the specific namespace if keystore2 is enabled.
-            if (AndroidKeyStoreProvider.isInstalled()) {
-                loadStoreParameter = new AndroidKeyStoreLoadStoreParameter(KEY_STORE_NAMESPACE);
-            }
+            loadStoreParameter = new AndroidKeyStoreLoadStoreParameter(KEY_STORE_NAMESPACE);
             keyStore.load(loadStoreParameter);
             return (SecretKey) keyStore.getKey(REBOOT_ESCROW_KEY_STORE_ENCRYPTION_KEY_NAME,
                     null);
@@ -91,9 +88,7 @@
                 KeyStore keyStore = KeyStore.getInstance(ANDROID_KEY_STORE_PROVIDER);
                 KeyStore.LoadStoreParameter loadStoreParameter = null;
                 // Load from the specific namespace if keystore2 is enabled.
-                if (AndroidKeyStoreProvider.isInstalled()) {
-                    loadStoreParameter = new AndroidKeyStoreLoadStoreParameter(KEY_STORE_NAMESPACE);
-                }
+                loadStoreParameter = new AndroidKeyStoreLoadStoreParameter(KEY_STORE_NAMESPACE);
                 keyStore.load(loadStoreParameter);
                 keyStore.deleteEntry(REBOOT_ESCROW_KEY_STORE_ENCRYPTION_KEY_NAME);
             } catch (IOException | GeneralSecurityException e) {
@@ -119,9 +114,7 @@
                         .setBlockModes(KeyProperties.BLOCK_MODE_GCM)
                         .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_NONE);
                 // Generate the key with the correct namespace if keystore2 is enabled.
-                if (AndroidKeyStoreProvider.isInstalled()) {
-                    parameterSpecBuilder.setNamespace(KEY_STORE_NAMESPACE);
-                }
+                parameterSpecBuilder.setNamespace(KEY_STORE_NAMESPACE);
                 generator.init(parameterSpecBuilder.build());
                 return generator.generateKey();
             } catch (GeneralSecurityException e) {
diff --git a/services/core/java/com/android/server/locksettings/RebootEscrowManager.java b/services/core/java/com/android/server/locksettings/RebootEscrowManager.java
index 76ecc1a..c01523a 100644
--- a/services/core/java/com/android/server/locksettings/RebootEscrowManager.java
+++ b/services/core/java/com/android/server/locksettings/RebootEscrowManager.java
@@ -18,6 +18,15 @@
 
 import static android.os.UserHandle.USER_SYSTEM;
 
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_ESCROW_NOT_READY;
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_KEYSTORE_FAILURE;
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_NONE;
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_NO_ESCROW_KEY;
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_NO_PROVIDER;
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_PROVIDER_MISMATCH;
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_STORE_ESCROW_KEY;
+import static com.android.internal.widget.LockSettingsInternal.ArmRebootEscrowErrorCode;
+
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.UserIdInt;
@@ -577,16 +586,14 @@
         mRebootEscrowWanted = false;
         setRebootEscrowReady(false);
 
-
         RebootEscrowProviderInterface rebootEscrowProvider = mInjector.getRebootEscrowProvider();
         if (rebootEscrowProvider == null) {
-            Slog.w(TAG,
-                    "Had reboot escrow data for users, but RebootEscrowProvider is unavailable");
-            return;
+            Slog.w(TAG, "RebootEscrowProvider is unavailable for clear request");
+        } else {
+            rebootEscrowProvider.clearRebootEscrowKey();
         }
 
         clearMetricsStorage();
-        rebootEscrowProvider.clearRebootEscrowKey();
 
         List<UserInfo> users = mUserManager.getUsers();
         for (UserInfo user : users) {
@@ -596,20 +603,30 @@
         mEventLog.addEntry(RebootEscrowEvent.CLEARED_LSKF_REQUEST);
     }
 
-    boolean armRebootEscrowIfNeeded() {
+    @ArmRebootEscrowErrorCode int armRebootEscrowIfNeeded() {
         if (!mRebootEscrowReady) {
-            return false;
+            return ARM_REBOOT_ERROR_ESCROW_NOT_READY;
         }
 
         RebootEscrowProviderInterface rebootEscrowProvider = mInjector.getRebootEscrowProvider();
         if (rebootEscrowProvider == null) {
             Slog.w(TAG,
                     "Had reboot escrow data for users, but RebootEscrowProvider is unavailable");
-            return false;
+            clearRebootEscrowIfNeeded();
+            return ARM_REBOOT_ERROR_NO_PROVIDER;
         }
 
+        int expectedProviderType = mInjector.serverBasedResumeOnReboot()
+                ? RebootEscrowProviderInterface.TYPE_SERVER_BASED
+                : RebootEscrowProviderInterface.TYPE_HAL;
         int actualProviderType = rebootEscrowProvider.getType();
-        // TODO(b/183140900) Fail the reboot if provider type mismatches.
+        if (expectedProviderType != actualProviderType) {
+            Slog.w(TAG, "Expect reboot escrow provider " + expectedProviderType
+                    + ", but the RoR is prepared with " + actualProviderType
+                    + ". Please prepare the RoR again.");
+            clearRebootEscrowIfNeeded();
+            return ARM_REBOOT_ERROR_PROVIDER_MISMATCH;
+        }
 
         RebootEscrowKey escrowKey;
         synchronized (mKeyGenerationLock) {
@@ -618,30 +635,38 @@
 
         if (escrowKey == null) {
             Slog.e(TAG, "Escrow key is null, but escrow was marked as ready");
-            return false;
+            clearRebootEscrowIfNeeded();
+            return ARM_REBOOT_ERROR_NO_ESCROW_KEY;
         }
 
         // We will use the same key from keystore to encrypt the escrow key and escrow data blob.
         SecretKey kk = mKeyStoreManager.getKeyStoreEncryptionKey();
         if (kk == null) {
             Slog.e(TAG, "Failed to get encryption key from keystore.");
-            return false;
-        }
-        boolean armedRebootEscrow = rebootEscrowProvider.storeRebootEscrowKey(escrowKey, kk);
-        if (armedRebootEscrow) {
-            mStorage.setInt(REBOOT_ESCROW_ARMED_KEY, mInjector.getBootCount(), USER_SYSTEM);
-            mStorage.setLong(REBOOT_ESCROW_KEY_ARMED_TIMESTAMP, mInjector.getCurrentTimeMillis(),
-                    USER_SYSTEM);
-            // Store the vbmeta digest of both slots.
-            mStorage.setString(REBOOT_ESCROW_KEY_VBMETA_DIGEST, mInjector.getVbmetaDigest(false),
-                    USER_SYSTEM);
-            mStorage.setString(REBOOT_ESCROW_KEY_OTHER_VBMETA_DIGEST,
-                    mInjector.getVbmetaDigest(true), USER_SYSTEM);
-            mStorage.setInt(REBOOT_ESCROW_KEY_PROVIDER, actualProviderType, USER_SYSTEM);
-            mEventLog.addEntry(RebootEscrowEvent.SET_ARMED_STATUS);
+            clearRebootEscrowIfNeeded();
+            return ARM_REBOOT_ERROR_KEYSTORE_FAILURE;
         }
 
-        return armedRebootEscrow;
+        // TODO(b/183140900) design detailed errors for store escrow key errors.
+        // We don't clear rebootEscrow here, because some errors may be recoverable, e.g. network
+        // unavailable for server based provider.
+        boolean armedRebootEscrow = rebootEscrowProvider.storeRebootEscrowKey(escrowKey, kk);
+        if (!armedRebootEscrow) {
+            return ARM_REBOOT_ERROR_STORE_ESCROW_KEY;
+        }
+
+        mStorage.setInt(REBOOT_ESCROW_ARMED_KEY, mInjector.getBootCount(), USER_SYSTEM);
+        mStorage.setLong(REBOOT_ESCROW_KEY_ARMED_TIMESTAMP, mInjector.getCurrentTimeMillis(),
+                USER_SYSTEM);
+        // Store the vbmeta digest of both slots.
+        mStorage.setString(REBOOT_ESCROW_KEY_VBMETA_DIGEST, mInjector.getVbmetaDigest(false),
+                USER_SYSTEM);
+        mStorage.setString(REBOOT_ESCROW_KEY_OTHER_VBMETA_DIGEST,
+                mInjector.getVbmetaDigest(true), USER_SYSTEM);
+        mStorage.setInt(REBOOT_ESCROW_KEY_PROVIDER, actualProviderType, USER_SYSTEM);
+        mEventLog.addEntry(RebootEscrowEvent.SET_ARMED_STATUS);
+
+        return ARM_REBOOT_ERROR_NONE;
     }
 
     private void setRebootEscrowReady(boolean ready) {
@@ -663,10 +688,6 @@
     }
 
     boolean clearRebootEscrow() {
-        if (mInjector.getRebootEscrowProvider() == null) {
-            return false;
-        }
-
         clearRebootEscrowIfNeeded();
         return true;
     }
diff --git a/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/ApplicationKeyStorage.java b/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/ApplicationKeyStorage.java
index 2398f56..8582c67 100644
--- a/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/ApplicationKeyStorage.java
+++ b/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/ApplicationKeyStorage.java
@@ -20,8 +20,6 @@
 
 import android.annotation.Nullable;
 import android.os.ServiceSpecificException;
-import android.security.Credentials;
-import android.security.KeyStore;
 import android.security.KeyStore2;
 import android.security.keystore.KeyProperties;
 import android.security.keystore.KeyProtection;
@@ -75,13 +73,7 @@
     public @Nullable String getGrantAlias(int userId, int uid, String alias) {
         Log.i(TAG, String.format(Locale.US, "Get %d/%d/%s", userId, uid, alias));
         String keystoreAlias = getInternalAlias(userId, uid, alias);
-        if (useKeyStore2()) {
-            return makeKeystoreEngineGrantString(uid, keystoreAlias);
-        } else {
-            // Aliases used by {@link KeyStore} are different than used by public API.
-            // {@code USER_PRIVATE_KEY} prefix is used secret keys.
-            return KeyStore.getInstance().grant(Credentials.USER_PRIVATE_KEY + keystoreAlias, uid);
-        }
+        return makeKeystoreEngineGrantString(uid, keystoreAlias);
     }
 
     public void setSymmetricKeyEntry(int userId, int uid, String alias, byte[] secretKey)
@@ -148,9 +140,4 @@
         }
         return String.format("%s%016X", APPLICATION_KEY_GRANT_PREFIX, key.nspace);
     }
-
-    private static boolean useKeyStore2() {
-        return android.security.keystore2.AndroidKeyStoreProvider.isInstalled();
-    }
-
 }
diff --git a/services/core/java/com/android/server/net/IpConfigStore.java b/services/core/java/com/android/server/net/IpConfigStore.java
index cc3a002..df1eb6d 100644
--- a/services/core/java/com/android/server/net/IpConfigStore.java
+++ b/services/core/java/com/android/server/net/IpConfigStore.java
@@ -22,7 +22,6 @@
 import android.net.IpConfiguration.ProxySettings;
 import android.net.LinkAddress;
 import android.net.ProxyInfo;
-import android.net.RouteInfo;
 import android.net.StaticIpConfiguration;
 import android.net.Uri;
 import android.util.ArrayMap;
@@ -42,6 +41,8 @@
 import java.io.InputStream;
 import java.net.Inet4Address;
 import java.net.InetAddress;
+import java.util.ArrayList;
+import java.util.List;
 
 public class IpConfigStore {
     private static final String TAG = "IpConfigStore";
@@ -83,25 +84,25 @@
         boolean written = false;
 
         try {
-            switch (config.ipAssignment) {
+            switch (config.getIpAssignment()) {
                 case STATIC:
                     out.writeUTF(IP_ASSIGNMENT_KEY);
-                    out.writeUTF(config.ipAssignment.toString());
-                    StaticIpConfiguration staticIpConfiguration = config.staticIpConfiguration;
+                    out.writeUTF(config.getIpAssignment().toString());
+                    StaticIpConfiguration staticIpConfiguration = config.getStaticIpConfiguration();
                     if (staticIpConfiguration != null) {
-                        if (staticIpConfiguration.ipAddress != null) {
-                            LinkAddress ipAddress = staticIpConfiguration.ipAddress;
+                        if (staticIpConfiguration.getIpAddress() != null) {
+                            LinkAddress ipAddress = staticIpConfiguration.getIpAddress();
                             out.writeUTF(LINK_ADDRESS_KEY);
                             out.writeUTF(ipAddress.getAddress().getHostAddress());
                             out.writeInt(ipAddress.getPrefixLength());
                         }
-                        if (staticIpConfiguration.gateway != null) {
+                        if (staticIpConfiguration.getGateway() != null) {
                             out.writeUTF(GATEWAY_KEY);
                             out.writeInt(0);  // Default route.
                             out.writeInt(1);  // Have a gateway.
-                            out.writeUTF(staticIpConfiguration.gateway.getHostAddress());
+                            out.writeUTF(staticIpConfiguration.getGateway().getHostAddress());
                         }
-                        for (InetAddress inetAddr : staticIpConfiguration.dnsServers) {
+                        for (InetAddress inetAddr : staticIpConfiguration.getDnsServers()) {
                             out.writeUTF(DNS_KEY);
                             out.writeUTF(inetAddr.getHostAddress());
                         }
@@ -110,7 +111,7 @@
                     break;
                 case DHCP:
                     out.writeUTF(IP_ASSIGNMENT_KEY);
-                    out.writeUTF(config.ipAssignment.toString());
+                    out.writeUTF(config.getIpAssignment().toString());
                     written = true;
                     break;
                 case UNASSIGNED:
@@ -121,13 +122,13 @@
                     break;
             }
 
-            switch (config.proxySettings) {
+            switch (config.getProxySettings()) {
                 case STATIC:
-                    ProxyInfo proxyProperties = config.httpProxy;
+                    ProxyInfo proxyProperties = config.getHttpProxy();
                     String exclusionList = ProxyUtils.exclusionListAsString(
                             proxyProperties.getExclusionList());
                     out.writeUTF(PROXY_SETTINGS_KEY);
-                    out.writeUTF(config.proxySettings.toString());
+                    out.writeUTF(config.getProxySettings().toString());
                     out.writeUTF(PROXY_HOST_KEY);
                     out.writeUTF(proxyProperties.getHost());
                     out.writeUTF(PROXY_PORT_KEY);
@@ -139,16 +140,16 @@
                     written = true;
                     break;
                 case PAC:
-                    ProxyInfo proxyPacProperties = config.httpProxy;
+                    ProxyInfo proxyPacProperties = config.getHttpProxy();
                     out.writeUTF(PROXY_SETTINGS_KEY);
-                    out.writeUTF(config.proxySettings.toString());
+                    out.writeUTF(config.getProxySettings().toString());
                     out.writeUTF(PROXY_PAC_FILE);
                     out.writeUTF(proxyPacProperties.getPacFileUrl().toString());
                     written = true;
                     break;
                 case NONE:
                     out.writeUTF(PROXY_SETTINGS_KEY);
-                    out.writeUTF(config.proxySettings.toString());
+                    out.writeUTF(config.getProxySettings().toString());
                     written = true;
                     break;
                 case UNASSIGNED:
@@ -267,11 +268,14 @@
                 IpAssignment ipAssignment = IpAssignment.DHCP;
                 ProxySettings proxySettings = ProxySettings.NONE;
                 StaticIpConfiguration staticIpConfiguration = new StaticIpConfiguration();
+                LinkAddress linkAddress = null;
+                InetAddress gatewayAddress = null;
                 String proxyHost = null;
                 String pacFileUrl = null;
                 int proxyPort = -1;
                 String exclusionList = null;
                 String key;
+                final List<InetAddress> dnsServers = new ArrayList<>();
 
                 do {
                     key = in.readUTF();
@@ -286,15 +290,15 @@
                         } else if (key.equals(IP_ASSIGNMENT_KEY)) {
                             ipAssignment = IpAssignment.valueOf(in.readUTF());
                         } else if (key.equals(LINK_ADDRESS_KEY)) {
-                            LinkAddress linkAddr =
+                            LinkAddress parsedLinkAddress =
                                     new LinkAddress(
                                             InetAddresses.parseNumericAddress(in.readUTF()),
                                             in.readInt());
-                            if (linkAddr.getAddress() instanceof Inet4Address &&
-                                    staticIpConfiguration.ipAddress == null) {
-                                staticIpConfiguration.ipAddress = linkAddr;
+                            if (parsedLinkAddress.getAddress() instanceof Inet4Address
+                                    && linkAddress == null) {
+                                linkAddress = parsedLinkAddress;
                             } else {
-                                loge("Non-IPv4 or duplicate address: " + linkAddr);
+                                loge("Non-IPv4 or duplicate address: " + parsedLinkAddress);
                             }
                         } else if (key.equals(GATEWAY_KEY)) {
                             LinkAddress dest = null;
@@ -302,8 +306,8 @@
                             if (version == 1) {
                                 // only supported default gateways - leave the dest/prefix empty
                                 gateway = InetAddresses.parseNumericAddress(in.readUTF());
-                                if (staticIpConfiguration.gateway == null) {
-                                    staticIpConfiguration.gateway = gateway;
+                                if (gatewayAddress == null) {
+                                    gatewayAddress = gateway;
                                 } else {
                                     loge("Duplicate gateway: " + gateway.getHostAddress());
                                 }
@@ -317,17 +321,18 @@
                                 if (in.readInt() == 1) {
                                     gateway = InetAddresses.parseNumericAddress(in.readUTF());
                                 }
-                                RouteInfo route = new RouteInfo(dest, gateway);
-                                if (route.isIPv4Default() &&
-                                        staticIpConfiguration.gateway == null) {
-                                    staticIpConfiguration.gateway = gateway;
+                                // If the destination is a default IPv4 route, use the gateway
+                                // address unless already set.
+                                if (dest.getAddress() instanceof Inet4Address
+                                        && dest.getPrefixLength() == 0 && gatewayAddress == null) {
+                                    gatewayAddress = gateway;
                                 } else {
-                                    loge("Non-IPv4 default or duplicate route: " + route);
+                                    loge("Non-IPv4 default or duplicate route: "
+                                            + dest.getAddress());
                                 }
                             }
                         } else if (key.equals(DNS_KEY)) {
-                            staticIpConfiguration.dnsServers.add(
-                                    InetAddresses.parseNumericAddress(in.readUTF()));
+                            dnsServers.add(InetAddresses.parseNumericAddress(in.readUTF()));
                         } else if (key.equals(PROXY_SETTINGS_KEY)) {
                             proxySettings = ProxySettings.valueOf(in.readUTF());
                         } else if (key.equals(PROXY_HOST_KEY)) {
@@ -348,25 +353,31 @@
                     }
                 } while (true);
 
+                staticIpConfiguration = new StaticIpConfiguration.Builder()
+                    .setIpAddress(linkAddress)
+                    .setGateway(gatewayAddress)
+                    .setDnsServers(dnsServers)
+                    .build();
+
                 if (uniqueToken != null) {
                     IpConfiguration config = new IpConfiguration();
                     networks.put(uniqueToken, config);
 
                     switch (ipAssignment) {
                         case STATIC:
-                            config.staticIpConfiguration = staticIpConfiguration;
-                            config.ipAssignment = ipAssignment;
+                            config.setStaticIpConfiguration(staticIpConfiguration);
+                            config.setIpAssignment(ipAssignment);
                             break;
                         case DHCP:
-                            config.ipAssignment = ipAssignment;
+                            config.setIpAssignment(ipAssignment);
                             break;
                         case UNASSIGNED:
                             loge("BUG: Found UNASSIGNED IP on file, use DHCP");
-                            config.ipAssignment = IpAssignment.DHCP;
+                            config.setIpAssignment(IpAssignment.DHCP);
                             break;
                         default:
                             loge("Ignore invalid ip assignment while reading.");
-                            config.ipAssignment = IpAssignment.UNASSIGNED;
+                            config.setIpAssignment(IpAssignment.UNASSIGNED);
                             break;
                     }
 
@@ -374,25 +385,25 @@
                         case STATIC:
                             ProxyInfo proxyInfo = ProxyInfo.buildDirectProxy(proxyHost, proxyPort,
                                     ProxyUtils.exclusionStringAsList(exclusionList));
-                            config.proxySettings = proxySettings;
-                            config.httpProxy = proxyInfo;
+                            config.setProxySettings(proxySettings);
+                            config.setHttpProxy(proxyInfo);
                             break;
                         case PAC:
                             ProxyInfo proxyPacProperties =
                                     ProxyInfo.buildPacProxy(Uri.parse(pacFileUrl));
-                            config.proxySettings = proxySettings;
-                            config.httpProxy = proxyPacProperties;
+                            config.setProxySettings(proxySettings);
+                            config.setHttpProxy(proxyPacProperties);
                             break;
                         case NONE:
-                            config.proxySettings = proxySettings;
+                            config.setProxySettings(proxySettings);
                             break;
                         case UNASSIGNED:
                             loge("BUG: Found UNASSIGNED proxy on file, use NONE");
-                            config.proxySettings = ProxySettings.NONE;
+                            config.setProxySettings(ProxySettings.NONE);
                             break;
                         default:
                             loge("Ignore invalid proxy settings while reading");
-                            config.proxySettings = ProxySettings.UNASSIGNED;
+                            config.setProxySettings(ProxySettings.UNASSIGNED);
                             break;
                     }
                 } else {
diff --git a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
index b8d235f..1f44d25 100644
--- a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
+++ b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
@@ -5577,17 +5577,6 @@
     }
 
     @Override
-    public boolean checkUidNetworkingBlocked(int uid, int uidRules,
-            boolean isNetworkMetered, boolean isBackgroundRestricted) {
-        mContext.enforceCallingOrSelfPermission(OBSERVE_NETWORK_POLICY, TAG);
-        // Log of invoking this function is disabled because it will be called very frequently. And
-        // metrics are unlikely needed on this method because the callers are external and this
-        // method doesn't take any locks or perform expensive operations.
-        return isUidNetworkingBlockedInternal(uid, uidRules, isNetworkMetered,
-                isBackgroundRestricted, null);
-    }
-
-    @Override
     public boolean isUidRestrictedOnMeteredNetworks(int uid) {
         mContext.enforceCallingOrSelfPermission(OBSERVE_NETWORK_POLICY, TAG);
         final int uidRules;
@@ -5864,7 +5853,8 @@
         return (bundle != null) ? bundle.getBoolean(key, defaultValue) : defaultValue;
     }
 
-    private class UidBlockedState {
+    @VisibleForTesting
+    static final class UidBlockedState {
         public int blockedReasons;
         public int allowedReasons;
         public int effectiveBlockedReasons;
@@ -5876,16 +5866,21 @@
         }
 
         void updateEffectiveBlockedReasons() {
-            effectiveBlockedReasons = blockedReasons;
+            effectiveBlockedReasons = getEffectiveBlockedReasons(blockedReasons, allowedReasons);
+        }
+
+        @VisibleForTesting
+        static int getEffectiveBlockedReasons(int blockedReasons, int allowedReasons) {
+            int effectiveBlockedReasons = blockedReasons;
             // If the uid is not subject to any blocked reasons, then return early
             if (blockedReasons == BLOCKED_REASON_NONE) {
-                return;
+                return effectiveBlockedReasons;
             }
             if ((allowedReasons & ALLOWED_REASON_SYSTEM) != 0) {
-                effectiveBlockedReasons = (blockedReasons & ALLOWED_METERED_REASON_MASK);
+                effectiveBlockedReasons &= ALLOWED_METERED_REASON_MASK;
             }
             if ((allowedReasons & ALLOWED_METERED_REASON_SYSTEM) != 0) {
-                effectiveBlockedReasons = (blockedReasons & ~ALLOWED_METERED_REASON_MASK);
+                effectiveBlockedReasons &= ~ALLOWED_METERED_REASON_MASK;
             }
             if ((allowedReasons & ALLOWED_REASON_FOREGROUND) != 0) {
                 effectiveBlockedReasons &= ~BLOCKED_REASON_BATTERY_SAVER;
@@ -5911,6 +5906,7 @@
             if ((allowedReasons & ALLOWED_METERED_REASON_USER_EXEMPTED) != 0) {
                 effectiveBlockedReasons &= ~BLOCKED_METERED_REASON_DATA_SAVER;
             }
+            return effectiveBlockedReasons;
         }
     }
 
diff --git a/services/core/java/com/android/server/net/TEST_MAPPING b/services/core/java/com/android/server/net/TEST_MAPPING
index 9f04260..571957b 100644
--- a/services/core/java/com/android/server/net/TEST_MAPPING
+++ b/services/core/java/com/android/server/net/TEST_MAPPING
@@ -1,5 +1,5 @@
 {
-  "presubmit": [
+  "presubmit-large": [
     {
       "name": "CtsHostsideNetworkTests",
       "file_patterns": ["(/|^)NetworkPolicy[^/]*\\.java"],
@@ -11,7 +11,9 @@
           "exclude-annotation": "androidx.test.filters.FlakyTest"
         }
       ]
-    },
+    }
+  ],
+  "presubmit": [
     {
       "name": "FrameworksServicesTests",
       "file_patterns": ["(/|^)NetworkPolicy[^/]*\\.java"],
diff --git a/services/core/java/com/android/server/pm/PackageDexOptimizer.java b/services/core/java/com/android/server/pm/PackageDexOptimizer.java
index 0e4a2ee..ca9c75f 100644
--- a/services/core/java/com/android/server/pm/PackageDexOptimizer.java
+++ b/services/core/java/com/android/server/pm/PackageDexOptimizer.java
@@ -267,7 +267,7 @@
                                 mArtStatsLogger,
                                 sessionId,
                                 compilerFilter,
-                                sharedGid,
+                                pkg.getUid(),
                                 packageStats.getCompileTime(path),
                                 dexMetadataPath,
                                 options.getCompilationReason(),
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 58ffba2..48fee0b 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -33,6 +33,8 @@
 import static android.content.Intent.EXTRA_VERSION_CODE;
 import static android.content.pm.PackageManager.CERT_INPUT_RAW_X509;
 import static android.content.pm.PackageManager.CERT_INPUT_SHA256;
+import static android.content.Intent.CATEGORY_BROWSABLE;
+import static android.content.Intent.CATEGORY_DEFAULT;
 import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DEFAULT;
 import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED;
 import static android.content.pm.PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED;
diff --git a/services/core/java/com/android/server/pm/dex/ArtStatsLogUtils.java b/services/core/java/com/android/server/pm/dex/ArtStatsLogUtils.java
index 13798ba..d67796b 100644
--- a/services/core/java/com/android/server/pm/dex/ArtStatsLogUtils.java
+++ b/services/core/java/com/android/server/pm/dex/ArtStatsLogUtils.java
@@ -128,18 +128,12 @@
     private static final Map<String, Integer> ISA_MAP = new HashMap();
 
     static {
-        COMPILE_FILTER_MAP.put("arm", ArtStatsLog.
-                ART_DATUM_REPORTED__ISA__ART_ISA_ARM);
-        COMPILE_FILTER_MAP.put("arm64", ArtStatsLog.
-                ART_DATUM_REPORTED__ISA__ART_ISA_ARM64);
-        COMPILE_FILTER_MAP.put("x86", ArtStatsLog.
-                ART_DATUM_REPORTED__ISA__ART_ISA_X86);
-        COMPILE_FILTER_MAP.put("x86_64", ArtStatsLog.
-                ART_DATUM_REPORTED__ISA__ART_ISA_X86_64);
-        COMPILE_FILTER_MAP.put("mips", ArtStatsLog.
-                ART_DATUM_REPORTED__ISA__ART_ISA_MIPS);
-        COMPILE_FILTER_MAP.put("mips64", ArtStatsLog.
-                ART_DATUM_REPORTED__ISA__ART_ISA_MIPS64);
+        ISA_MAP.put("arm", ArtStatsLog.ART_DATUM_REPORTED__ISA__ART_ISA_ARM);
+        ISA_MAP.put("arm64", ArtStatsLog.ART_DATUM_REPORTED__ISA__ART_ISA_ARM64);
+        ISA_MAP.put("x86", ArtStatsLog.ART_DATUM_REPORTED__ISA__ART_ISA_X86);
+        ISA_MAP.put("x86_64", ArtStatsLog.ART_DATUM_REPORTED__ISA__ART_ISA_X86_64);
+        ISA_MAP.put("mips", ArtStatsLog.ART_DATUM_REPORTED__ISA__ART_ISA_MIPS);
+        ISA_MAP.put("mips64", ArtStatsLog.ART_DATUM_REPORTED__ISA__ART_ISA_MIPS64);
     }
 
     public static void writeStatsLog(
diff --git a/services/core/java/com/android/server/pm/parsing/PackageInfoUtils.java b/services/core/java/com/android/server/pm/parsing/PackageInfoUtils.java
index 64fa708..1fd2a05 100644
--- a/services/core/java/com/android/server/pm/parsing/PackageInfoUtils.java
+++ b/services/core/java/com/android/server/pm/parsing/PackageInfoUtils.java
@@ -400,7 +400,7 @@
             retProcs.put(proc.getName(),
                     new ProcessInfo(proc.getName(), new ArraySet<>(proc.getDeniedPermissions()),
                             proc.getGwpAsanMode(), proc.getMemtagMode(),
-                            proc.getNativeHeapZeroInit()));
+                            proc.getNativeHeapZeroInitialized()));
         }
         return retProcs;
     }
diff --git a/services/core/java/com/android/server/recoverysystem/RecoverySystemService.java b/services/core/java/com/android/server/recoverysystem/RecoverySystemService.java
index fe21201..81a51e2 100644
--- a/services/core/java/com/android/server/recoverysystem/RecoverySystemService.java
+++ b/services/core/java/com/android/server/recoverysystem/RecoverySystemService.java
@@ -16,8 +16,17 @@
 
 package com.android.server.recoverysystem;
 
+import static android.os.RecoverySystem.RESUME_ON_REBOOT_REBOOT_ERROR_INVALID_PACKAGE_NAME;
+import static android.os.RecoverySystem.RESUME_ON_REBOOT_REBOOT_ERROR_LSKF_NOT_CAPTURED;
+import static android.os.RecoverySystem.RESUME_ON_REBOOT_REBOOT_ERROR_NONE;
+import static android.os.RecoverySystem.RESUME_ON_REBOOT_REBOOT_ERROR_PROVIDER_PREPARATION_FAILURE;
+import static android.os.RecoverySystem.RESUME_ON_REBOOT_REBOOT_ERROR_SLOT_MISMATCH;
+import static android.os.RecoverySystem.RESUME_ON_REBOOT_REBOOT_ERROR_UNSPECIFIED;
+import static android.os.RecoverySystem.ResumeOnRebootRebootErrorCode;
 import static android.os.UserHandle.USER_SYSTEM;
 
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_NONE;
+
 import android.annotation.IntDef;
 import android.content.Context;
 import android.content.IntentSender;
@@ -40,6 +49,7 @@
 import android.provider.DeviceConfig;
 import android.util.ArrayMap;
 import android.util.ArraySet;
+import android.util.FastImmutableArraySet;
 import android.util.Slog;
 
 import com.android.internal.annotations.GuardedBy;
@@ -136,7 +146,7 @@
      */
     @IntDef({ ROR_NEED_PREPARATION,
             ROR_SKIP_PREPARATION_AND_NOTIFY,
-            ROR_SKIP_PREPARATION_NOT_NOTIFY})
+            ROR_SKIP_PREPARATION_NOT_NOTIFY })
     private @interface ResumeOnRebootActionsOnRequest {}
 
     /**
@@ -144,26 +154,41 @@
      */
     @IntDef({ ROR_NOT_REQUESTED,
             ROR_REQUESTED_NEED_CLEAR,
-            ROR_REQUESTED_SKIP_CLEAR})
+            ROR_REQUESTED_SKIP_CLEAR })
     private @interface ResumeOnRebootActionsOnClear {}
 
     /**
-     * The error codes for reboots initiated by resume on reboot clients.
+     * Fatal arm escrow errors from lock settings that means the RoR is in a bad state. So clients
+     * need to prepare RoR again.
      */
-    private static final int REBOOT_ERROR_NONE = 0;
-    private static final int REBOOT_ERROR_UNKNOWN = 1;
-    private static final int REBOOT_ERROR_INVALID_PACKAGE_NAME = 2;
-    private static final int REBOOT_ERROR_LSKF_NOT_CAPTURED = 3;
-    private static final int REBOOT_ERROR_SLOT_MISMATCH = 4;
-    private static final int REBOOT_ERROR_ARM_REBOOT_ESCROW_FAILURE = 5;
+    static final FastImmutableArraySet<Integer> FATAL_ARM_ESCROW_ERRORS =
+            new FastImmutableArraySet<>(new Integer[]{
+                    LockSettingsInternal.ARM_REBOOT_ERROR_ESCROW_NOT_READY,
+                    LockSettingsInternal.ARM_REBOOT_ERROR_NO_PROVIDER,
+                    LockSettingsInternal.ARM_REBOOT_ERROR_PROVIDER_MISMATCH,
+                    LockSettingsInternal.ARM_REBOOT_ERROR_NO_ESCROW_KEY,
+                    LockSettingsInternal.ARM_REBOOT_ERROR_KEYSTORE_FAILURE,
+            });
 
-    @IntDef({ REBOOT_ERROR_NONE,
-            REBOOT_ERROR_UNKNOWN,
-            REBOOT_ERROR_INVALID_PACKAGE_NAME,
-            REBOOT_ERROR_LSKF_NOT_CAPTURED,
-            REBOOT_ERROR_SLOT_MISMATCH,
-            REBOOT_ERROR_ARM_REBOOT_ESCROW_FAILURE})
-    private @interface ResumeOnRebootRebootErrorCode {}
+    /**
+     * The error details for ArmRebootEscrow. It contains error codes from RecoverySystemService
+     * and LockSettingsService.
+     */
+    static class RebootPreparationError {
+        final @ResumeOnRebootRebootErrorCode int mRebootErrorCode;
+        final int mProviderErrorCode;  // The supplemental error code from lock settings
+
+        RebootPreparationError(int rebootErrorCode, int providerErrorCode) {
+            mRebootErrorCode = rebootErrorCode;
+            mProviderErrorCode = providerErrorCode;
+        }
+
+        int getErrorCodeForMetrics() {
+            // The ResumeOnRebootRebootErrorCode are aligned with 1000; so it's safe to add them
+            // for metrics purpose.
+            return mRebootErrorCode + mProviderErrorCode;
+        }
+    }
 
     /**
      * Manages shared preference, i.e. the storage used for metrics reporting.
@@ -720,34 +745,40 @@
         return true;
     }
 
-    private @ResumeOnRebootRebootErrorCode int armRebootEscrow(String packageName,
+    private RebootPreparationError armRebootEscrow(String packageName,
             boolean slotSwitch) {
         if (packageName == null) {
             Slog.w(TAG, "Missing packageName when rebooting with lskf.");
-            return REBOOT_ERROR_INVALID_PACKAGE_NAME;
+            return new RebootPreparationError(
+                    RESUME_ON_REBOOT_REBOOT_ERROR_INVALID_PACKAGE_NAME, ARM_REBOOT_ERROR_NONE);
         }
         if (!isLskfCaptured(packageName)) {
-            return REBOOT_ERROR_LSKF_NOT_CAPTURED;
+            return new RebootPreparationError(RESUME_ON_REBOOT_REBOOT_ERROR_LSKF_NOT_CAPTURED,
+                    ARM_REBOOT_ERROR_NONE);
         }
 
         if (!verifySlotForNextBoot(slotSwitch)) {
-            return REBOOT_ERROR_SLOT_MISMATCH;
+            return new RebootPreparationError(RESUME_ON_REBOOT_REBOOT_ERROR_SLOT_MISMATCH,
+                    ARM_REBOOT_ERROR_NONE);
         }
 
         final long origId = Binder.clearCallingIdentity();
-        boolean result;
+        int providerErrorCode;
         try {
-            result = mInjector.getLockSettingsService().armRebootEscrow();
+            providerErrorCode = mInjector.getLockSettingsService().armRebootEscrow();
         } finally {
             Binder.restoreCallingIdentity(origId);
         }
 
-        if (!result) {
-            Slog.w(TAG, "Failure to escrow key for reboot");
-            return REBOOT_ERROR_ARM_REBOOT_ESCROW_FAILURE;
+        if (providerErrorCode != ARM_REBOOT_ERROR_NONE) {
+            Slog.w(TAG, "Failure to escrow key for reboot, providerErrorCode: "
+                    + providerErrorCode);
+            return new RebootPreparationError(
+                    RESUME_ON_REBOOT_REBOOT_ERROR_PROVIDER_PREPARATION_FAILURE, providerErrorCode);
         }
 
-        return REBOOT_ERROR_NONE;
+        return new RebootPreparationError(RESUME_ON_REBOOT_REBOOT_ERROR_NONE,
+                ARM_REBOOT_ERROR_NONE);
     }
 
     private boolean useServerBasedRoR() {
@@ -761,7 +792,7 @@
     }
 
     private void reportMetricsOnRebootWithLskf(String packageName, boolean slotSwitch,
-            @ResumeOnRebootRebootErrorCode int errorCode) {
+            RebootPreparationError escrowError) {
         int uid = mInjector.getUidFromPackageName(packageName);
         boolean serverBased = useServerBasedRoR();
         int preparedClientCount;
@@ -784,16 +815,33 @@
                         + " request count %d, lskf captured count %d, duration since lskf captured"
                         + " %d seconds.", packageName, preparedClientCount, requestCount,
                 lskfCapturedCount, durationSeconds));
-        mInjector.reportRebootEscrowRebootMetrics(errorCode, uid, preparedClientCount,
-                requestCount, slotSwitch, serverBased, durationSeconds, lskfCapturedCount);
+        mInjector.reportRebootEscrowRebootMetrics(escrowError.getErrorCodeForMetrics(), uid,
+                preparedClientCount, requestCount, slotSwitch, serverBased, durationSeconds,
+                lskfCapturedCount);
     }
 
-    private boolean rebootWithLskfImpl(String packageName, String reason, boolean slotSwitch) {
-        @ResumeOnRebootRebootErrorCode int errorCode = armRebootEscrow(packageName, slotSwitch);
-        reportMetricsOnRebootWithLskf(packageName, slotSwitch, errorCode);
+    private void clearRoRPreparationStateOnRebootFailure(RebootPreparationError escrowError) {
+        if (!FATAL_ARM_ESCROW_ERRORS.contains(escrowError.mProviderErrorCode)) {
+            return;
+        }
 
-        if (errorCode != REBOOT_ERROR_NONE) {
-            return false;
+        Slog.w(TAG, "Clearing resume on reboot states for all clients on arm escrow error: "
+                + escrowError.mProviderErrorCode);
+        synchronized (this) {
+            mCallerPendingRequest.clear();
+            mCallerPreparedForReboot.clear();
+        }
+    }
+
+    private @ResumeOnRebootRebootErrorCode int rebootWithLskfImpl(String packageName, String reason,
+            boolean slotSwitch) {
+        RebootPreparationError escrowError = armRebootEscrow(packageName, slotSwitch);
+        reportMetricsOnRebootWithLskf(packageName, slotSwitch, escrowError);
+        clearRoRPreparationStateOnRebootFailure(escrowError);
+
+        @ResumeOnRebootRebootErrorCode int errorCode = escrowError.mRebootErrorCode;
+        if (errorCode != RESUME_ON_REBOOT_REBOOT_ERROR_NONE) {
+            return errorCode;
         }
 
         // Clear the metrics prefs after a successful RoR reboot.
@@ -801,17 +849,19 @@
 
         PowerManager pm = mInjector.getPowerManager();
         pm.reboot(reason);
-        return true;
+        return RESUME_ON_REBOOT_REBOOT_ERROR_UNSPECIFIED;
     }
 
     @Override // Binder call for the legacy rebootWithLskf
-    public boolean rebootWithLskfAssumeSlotSwitch(String packageName, String reason) {
+    public @ResumeOnRebootRebootErrorCode int rebootWithLskfAssumeSlotSwitch(String packageName,
+            String reason) {
         mContext.enforceCallingOrSelfPermission(android.Manifest.permission.RECOVERY, null);
         return rebootWithLskfImpl(packageName, reason, true);
     }
 
     @Override // Binder call
-    public boolean rebootWithLskf(String packageName, String reason, boolean slotSwitch) {
+    public @ResumeOnRebootRebootErrorCode int rebootWithLskf(String packageName, String reason,
+            boolean slotSwitch) {
         enforcePermissionForResumeOnReboot();
         return rebootWithLskfImpl(packageName, reason, slotSwitch);
     }
diff --git a/services/core/java/com/android/server/recoverysystem/RecoverySystemShellCommand.java b/services/core/java/com/android/server/recoverysystem/RecoverySystemShellCommand.java
index ae71c1a..3d78828 100644
--- a/services/core/java/com/android/server/recoverysystem/RecoverySystemShellCommand.java
+++ b/services/core/java/com/android/server/recoverysystem/RecoverySystemShellCommand.java
@@ -17,6 +17,7 @@
 package com.android.server.recoverysystem;
 
 import android.os.IRecoverySystem;
+import android.os.RecoverySystem;
 import android.os.RemoteException;
 import android.os.ShellCommand;
 
@@ -76,7 +77,8 @@
     private int rebootAndApply() throws RemoteException {
         String packageName = getNextArgRequired();
         String rebootReason = getNextArgRequired();
-        boolean success = mService.rebootWithLskf(packageName, rebootReason, false);
+        boolean success = (mService.rebootWithLskf(packageName, rebootReason, false)
+                == RecoverySystem.RESUME_ON_REBOOT_REBOOT_ERROR_NONE);
         PrintWriter pw = getOutPrintWriter();
         // Keep the old message for cts test.
         pw.printf("%s Reboot and apply status: %s\n", packageName,
diff --git a/services/core/java/com/android/server/trust/OWNERS b/services/core/java/com/android/server/trust/OWNERS
index b039c4b..e2c6ce1 100644
--- a/services/core/java/com/android/server/trust/OWNERS
+++ b/services/core/java/com/android/server/trust/OWNERS
@@ -1 +1 @@
-include /core/java/android/app/trust/OWNERS
+include /core/java/android/service/trust/OWNERS
diff --git a/services/core/java/com/android/server/trust/TrustManagerService.java b/services/core/java/com/android/server/trust/TrustManagerService.java
index afcf81f..ff763fc 100644
--- a/services/core/java/com/android/server/trust/TrustManagerService.java
+++ b/services/core/java/com/android/server/trust/TrustManagerService.java
@@ -54,7 +54,6 @@
 import android.os.UserManager;
 import android.provider.Settings;
 import android.security.Authorization;
-import android.security.KeyStore;
 import android.service.trust.TrustAgentService;
 import android.text.TextUtils;
 import android.util.ArrayMap;
@@ -701,13 +700,11 @@
             dispatchDeviceLocked(userId, locked);
 
             Authorization.onLockScreenEvent(locked, userId, null);
-            KeyStore.getInstance().onUserLockedStateChanged(userId, locked);
             // Also update the user's profiles who have unified challenge, since they
             // share the same unlocked state (see {@link #isDeviceLocked(int)})
             for (int profileHandle : mUserManager.getEnabledProfileIds(userId)) {
                 if (mLockPatternUtils.isManagedProfileWithUnifiedChallenge(profileHandle)) {
                     mAuthorizationService.onLockScreenEvent(locked, profileHandle, null);
-                    KeyStore.getInstance().onUserLockedStateChanged(profileHandle, locked);
                 }
             }
         }
@@ -1259,7 +1256,6 @@
                     }
 
                     Authorization.onLockScreenEvent(locked, userId, null);
-                    KeyStore.getInstance().onUserLockedStateChanged(userId, locked);
 
                     if (locked) {
                         try {
diff --git a/services/core/java/com/android/server/vcn/UnderlyingNetworkTracker.java b/services/core/java/com/android/server/vcn/UnderlyingNetworkTracker.java
index 069c5c3..ab214e8 100644
--- a/services/core/java/com/android/server/vcn/UnderlyingNetworkTracker.java
+++ b/services/core/java/com/android/server/vcn/UnderlyingNetworkTracker.java
@@ -118,18 +118,18 @@
         if (!mIsQuitting) {
             mRouteSelectionCallback = new RouteSelectionCallback();
             mConnectivityManager.requestBackgroundNetwork(
-                    getBaseNetworkRequestBuilder().build(), mHandler, mRouteSelectionCallback);
+                    getRouteSelectionRequest(), mRouteSelectionCallback, mHandler);
 
             mWifiBringupCallback = new NetworkBringupCallback();
             mConnectivityManager.requestBackgroundNetwork(
-                    getWifiNetworkRequest(), mHandler, mWifiBringupCallback);
+                    getWifiNetworkRequest(), mWifiBringupCallback, mHandler);
 
             for (final int subId : mLastSnapshot.getAllSubIdsInGroup(mSubscriptionGroup)) {
                 final NetworkBringupCallback cb = new NetworkBringupCallback();
                 mCellBringupCallbacks.add(cb);
 
                 mConnectivityManager.requestBackgroundNetwork(
-                        getCellNetworkRequestForSubId(subId), mHandler, cb);
+                        getCellNetworkRequestForSubId(subId), cb, mHandler);
             }
         } else {
             mRouteSelectionCallback = null;
@@ -149,12 +149,48 @@
         }
     }
 
-    private NetworkRequest getWifiNetworkRequest() {
+    /**
+     * Builds the Route selection request
+     *
+     * <p>This request is guaranteed to select carrier-owned, non-VCN underlying networks by virtue
+     * of a populated set of subIds as expressed in NetworkCapabilities#getSubIds(). Only carrier
+     * owned networks may be selected, as the request specifies only subIds in the VCN's
+     * subscription group, while the VCN networks are excluded by virtue of not having subIds set on
+     * the VCN-exposed networks.
+     */
+    private NetworkRequest getRouteSelectionRequest() {
         return getBaseNetworkRequestBuilder()
-                .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
+                .setSubIds(mLastSnapshot.getAllSubIdsInGroup(mSubscriptionGroup))
                 .build();
     }
 
+    /**
+     * Builds the WiFi bringup request
+     *
+     * <p>This request is built specifically to match only carrier-owned WiFi networks, but is also
+     * built to ONLY keep Carrier WiFi Networks alive (but never bring them up). This is a result of
+     * the WifiNetworkFactory not advertising a list of subIds, and therefore not accepting this
+     * request. As such, it will bind to a Carrier WiFi Network that has already been brought up,
+     * but will NEVER bring up a Carrier WiFi network itself.
+     */
+    private NetworkRequest getWifiNetworkRequest() {
+        return getBaseNetworkRequestBuilder()
+                .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
+                .setSubIds(mLastSnapshot.getAllSubIdsInGroup(mSubscriptionGroup))
+                .build();
+    }
+
+    /**
+     * Builds a Cellular bringup request for a given subId
+     *
+     * <p>This request is filed in order to ensure that the Telephony stack always has a
+     * NetworkRequest to bring up a VCN underlying cellular network. It is required in order to
+     * ensure that even when a VCN (appears as Cellular) satisfies the default request, Telephony
+     * will bring up additional underlying Cellular networks.
+     *
+     * <p>Since this request MUST make it to the TelephonyNetworkFactory, subIds are not specified
+     * in the NetworkCapabilities, but rather in the TelephonyNetworkSpecifier.
+     */
     private NetworkRequest getCellNetworkRequestForSubId(int subId) {
         return getBaseNetworkRequestBuilder()
                 .addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR)
@@ -164,20 +200,13 @@
 
     /**
      * Builds and returns a NetworkRequest builder common to all Underlying Network requests
-     *
-     * <p>This request is guaranteed to select carrier-owned, non-VCN underlying networks by virtue
-     * of a populated set of subIds as expressed in NetworkCapabilities#getSubIds(). Only carrier
-     * owned networks may be selected, as the request specifies only subIds in the VCN's
-     * subscription group, while the VCN networks are excluded by virtue of not having subIds set on
-     * the VCN-exposed networks.
      */
     private NetworkRequest.Builder getBaseNetworkRequestBuilder() {
         return new NetworkRequest.Builder()
                 .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
                 .removeCapability(NetworkCapabilities.NET_CAPABILITY_TRUSTED)
                 .removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED)
-                .removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VCN_MANAGED)
-                .setSubIds(mLastSnapshot.getAllSubIdsInGroup(mSubscriptionGroup));
+                .removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VCN_MANAGED);
     }
 
     /**
diff --git a/services/core/java/com/android/server/vcn/Vcn.java b/services/core/java/com/android/server/vcn/Vcn.java
index c0130da..7bc6056 100644
--- a/services/core/java/com/android/server/vcn/Vcn.java
+++ b/services/core/java/com/android/server/vcn/Vcn.java
@@ -17,6 +17,10 @@
 package com.android.server.vcn;
 
 import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_VCN_MANAGED;
+import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
+import static android.net.vcn.VcnManager.VCN_STATUS_CODE_ACTIVE;
+import static android.net.vcn.VcnManager.VCN_STATUS_CODE_INACTIVE;
+import static android.net.vcn.VcnManager.VCN_STATUS_CODE_SAFE_MODE;
 
 import static com.android.server.VcnManagementService.VDBG;
 
@@ -34,6 +38,7 @@
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.annotations.VisibleForTesting.Visibility;
+import com.android.internal.util.IndentingPrintWriter;
 import com.android.server.VcnManagementService.VcnCallback;
 import com.android.server.vcn.TelephonySubscriptionTracker.TelephonySubscriptionSnapshot;
 
@@ -44,7 +49,6 @@
 import java.util.Map.Entry;
 import java.util.Objects;
 import java.util.Set;
-import java.util.concurrent.atomic.AtomicBoolean;
 
 /**
  * Represents an single instance of a VCN.
@@ -94,17 +98,21 @@
      */
     private static final int MSG_EVENT_GATEWAY_CONNECTION_QUIT = MSG_EVENT_BASE + 3;
 
+    /**
+     * Triggers reevaluation of safe mode conditions.
+     *
+     * <p>Upon entering safe mode, the VCN will only provide gateway connections opportunistically,
+     * leaving the underlying networks marked as NOT_VCN_MANAGED.
+     *
+     * <p>Any VcnGatewayConnection in safe mode will result in the entire Vcn instance being put
+     * into safe mode. Upon receiving this message, the Vcn MUST query all VcnGatewayConnections to
+     * determine if any are in safe mode.
+     */
+    private static final int MSG_EVENT_SAFE_MODE_STATE_CHANGED = MSG_EVENT_BASE + 4;
+
     /** Triggers an immediate teardown of the entire Vcn, including GatewayConnections. */
     private static final int MSG_CMD_TEARDOWN = MSG_CMD_BASE;
 
-    /**
-     * Causes this VCN to immediately enter safe mode.
-     *
-     * <p>Upon entering safe mode, the VCN will unregister its RequestListener, tear down all of its
-     * VcnGatewayConnections, and notify VcnManagementService that it is in safe mode.
-     */
-    private static final int MSG_CMD_ENTER_SAFE_MODE = MSG_CMD_BASE + 1;
-
     @NonNull private final VcnContext mVcnContext;
     @NonNull private final ParcelUuid mSubscriptionGroup;
     @NonNull private final Dependencies mDeps;
@@ -137,17 +145,14 @@
     @NonNull private TelephonySubscriptionSnapshot mLastSnapshot;
 
     /**
-     * Whether this Vcn instance is active and running.
+     * The current status of this Vcn instance
      *
-     * <p>The value will be {@code true} while running. It will be {@code false} if the VCN has been
-     * shut down or has entered safe mode.
-     *
-     * <p>This AtomicBoolean is required in order to ensure consistency and correctness across
-     * multiple threads. Unlike the rest of the Vcn, this is queried synchronously on Binder threads
-     * from VcnManagementService, and therefore cannot rely on guarantees of running on the VCN
-     * Looper.
+     * <p>The value will be {@link VCN_STATUS_CODE_ACTIVE} while all VcnGatewayConnections are in
+     * good standing, {@link VCN_STATUS_CODE_SAFE_MODE} if any VcnGatewayConnections are in safe
+     * mode, and {@link VCN_STATUS_CODE_INACTIVE} once a teardown has been commanded.
      */
-    private final AtomicBoolean mIsActive = new AtomicBoolean(true);
+    // Accessed from different threads, but always under lock in VcnManagementService
+    private volatile int mCurrentStatus = VCN_STATUS_CODE_ACTIVE;
 
     public Vcn(
             @NonNull VcnContext vcnContext,
@@ -199,9 +204,15 @@
         sendMessageAtFrontOfQueue(obtainMessage(MSG_CMD_TEARDOWN));
     }
 
-    /** Synchronously checks whether this Vcn is active. */
-    public boolean isActive() {
-        return mIsActive.get();
+    /** Synchronously retrieves the current status code. */
+    public int getStatus() {
+        return mCurrentStatus;
+    }
+
+    /** Sets the status of this VCN */
+    @VisibleForTesting(visibility = Visibility.PRIVATE)
+    public void setStatus(int status) {
+        mCurrentStatus = status;
     }
 
     /** Get current Gateways for testing purposes */
@@ -217,12 +228,6 @@
         return Collections.unmodifiableMap(new HashMap<>(mVcnGatewayConnections));
     }
 
-    /** Set whether this Vcn is active for testing purposes */
-    @VisibleForTesting(visibility = Visibility.PRIVATE)
-    public void setIsActive(boolean isActive) {
-        mIsActive.set(isActive);
-    }
-
     private class VcnNetworkRequestListener implements VcnNetworkProvider.NetworkRequestListener {
         @Override
         public void onNetworkRequested(@NonNull NetworkRequest request, int score, int providerId) {
@@ -234,6 +239,11 @@
 
     @Override
     public void handleMessage(@NonNull Message msg) {
+        if (mCurrentStatus != VCN_STATUS_CODE_ACTIVE
+                && mCurrentStatus != VCN_STATUS_CODE_SAFE_MODE) {
+            return;
+        }
+
         switch (msg.what) {
             case MSG_EVENT_CONFIG_UPDATED:
                 handleConfigUpdated((VcnConfig) msg.obj);
@@ -247,12 +257,12 @@
             case MSG_EVENT_GATEWAY_CONNECTION_QUIT:
                 handleGatewayConnectionQuit((VcnGatewayConnectionConfig) msg.obj);
                 break;
+            case MSG_EVENT_SAFE_MODE_STATE_CHANGED:
+                handleSafeModeStatusChanged();
+                break;
             case MSG_CMD_TEARDOWN:
                 handleTeardown();
                 break;
-            case MSG_CMD_ENTER_SAFE_MODE:
-                handleEnterSafeMode();
-                break;
             default:
                 Slog.wtf(getLogTag(), "Unknown msg.what: " + msg.what);
         }
@@ -264,35 +274,28 @@
 
         mConfig = config;
 
-        if (mIsActive.getAndSet(true)) {
-            // VCN is already active - teardown any GatewayConnections whose configs have been
-            // removed and get all current requests
-            for (final Entry<VcnGatewayConnectionConfig, VcnGatewayConnection> entry :
-                    mVcnGatewayConnections.entrySet()) {
-                final VcnGatewayConnectionConfig gatewayConnectionConfig = entry.getKey();
-                final VcnGatewayConnection gatewayConnection = entry.getValue();
+        // Teardown any GatewayConnections whose configs have been removed and get all current
+        // requests
+        for (final Entry<VcnGatewayConnectionConfig, VcnGatewayConnection> entry :
+                mVcnGatewayConnections.entrySet()) {
+            final VcnGatewayConnectionConfig gatewayConnectionConfig = entry.getKey();
+            final VcnGatewayConnection gatewayConnection = entry.getValue();
 
-                // GatewayConnectionConfigs must match exactly (otherwise authentication or
-                // connection details may have changed).
-                if (!mConfig.getGatewayConnectionConfigs().contains(gatewayConnectionConfig)) {
-                    if (gatewayConnection == null) {
-                        Slog.wtf(
-                                getLogTag(),
-                                "Found gatewayConnectionConfig without GatewayConnection");
-                    } else {
-                        gatewayConnection.teardownAsynchronously();
-                    }
+            // GatewayConnectionConfigs must match exactly (otherwise authentication or
+            // connection details may have changed).
+            if (!mConfig.getGatewayConnectionConfigs().contains(gatewayConnectionConfig)) {
+                if (gatewayConnection == null) {
+                    Slog.wtf(
+                            getLogTag(), "Found gatewayConnectionConfig without GatewayConnection");
+                } else {
+                    gatewayConnection.teardownAsynchronously();
                 }
             }
-
-            // Trigger a re-evaluation of all NetworkRequests (to make sure any that can be
-            // satisfied start a new GatewayConnection)
-            mVcnContext.getVcnNetworkProvider().resendAllRequests(mRequestListener);
-        } else {
-            // If this VCN was not previously active, it is exiting Safe Mode. Re-register the
-            // request listener to get NetworkRequests again (and all cached requests).
-            mVcnContext.getVcnNetworkProvider().registerListener(mRequestListener);
         }
+
+        // Trigger a re-evaluation of all NetworkRequests (to make sure any that can be
+        // satisfied start a new GatewayConnection)
+        mVcnContext.getVcnNetworkProvider().resendAllRequests(mRequestListener);
     }
 
     private void handleTeardown() {
@@ -302,21 +305,31 @@
             gatewayConnection.teardownAsynchronously();
         }
 
-        mIsActive.set(false);
+        mCurrentStatus = VCN_STATUS_CODE_INACTIVE;
     }
 
-    private void handleEnterSafeMode() {
-        handleTeardown();
+    private void handleSafeModeStatusChanged() {
+        boolean hasSafeModeGatewayConnection = false;
 
-        mVcnCallback.onEnteredSafeMode();
+        // If any VcnGatewayConnection is in safe mode, mark the entire VCN as being in safe mode
+        for (VcnGatewayConnection gatewayConnection : mVcnGatewayConnections.values()) {
+            if (gatewayConnection.isInSafeMode()) {
+                hasSafeModeGatewayConnection = true;
+                break;
+            }
+        }
+
+        final int oldStatus = mCurrentStatus;
+        mCurrentStatus =
+                hasSafeModeGatewayConnection ? VCN_STATUS_CODE_SAFE_MODE : VCN_STATUS_CODE_ACTIVE;
+        if (oldStatus != mCurrentStatus) {
+            mVcnCallback.onSafeModeStatusChanged(hasSafeModeGatewayConnection);
+        }
     }
 
     private void handleNetworkRequested(
             @NonNull NetworkRequest request, int score, int providerId) {
-        if (!isActive()) {
-            Slog.v(getLogTag(), "Received NetworkRequest while inactive. Ignore for now");
-            return;
-        }
+        Slog.v(getLogTag(), "Received request " + request);
 
         if (score > getNetworkScore()) {
             if (VDBG) {
@@ -370,25 +383,23 @@
         mVcnGatewayConnections.remove(config);
 
         // Trigger a re-evaluation of all NetworkRequests (to make sure any that can be satisfied
-        // start a new GatewayConnection), but only if the Vcn is still active
-        if (isActive()) {
-            mVcnContext.getVcnNetworkProvider().resendAllRequests(mRequestListener);
-        }
+        // start a new GatewayConnection). VCN is always alive here, courtesy of the liveness check
+        // in handleMessage()
+        mVcnContext.getVcnNetworkProvider().resendAllRequests(mRequestListener);
     }
 
     private void handleSubscriptionsChanged(@NonNull TelephonySubscriptionSnapshot snapshot) {
         mLastSnapshot = snapshot;
 
-        if (isActive()) {
-            for (VcnGatewayConnection gatewayConnection : mVcnGatewayConnections.values()) {
-                gatewayConnection.updateSubscriptionSnapshot(mLastSnapshot);
-            }
+        for (VcnGatewayConnection gatewayConnection : mVcnGatewayConnections.values()) {
+            gatewayConnection.updateSubscriptionSnapshot(mLastSnapshot);
         }
     }
 
     private boolean isRequestSatisfiedByGatewayConnectionConfig(
             @NonNull NetworkRequest request, @NonNull VcnGatewayConnectionConfig config) {
         final NetworkCapabilities.Builder builder = new NetworkCapabilities.Builder();
+        builder.addTransportType(TRANSPORT_CELLULAR);
         builder.addCapability(NET_CAPABILITY_NOT_VCN_MANAGED);
         for (int cap : config.getAllExposedCapabilities()) {
             builder.addCapability(cap);
@@ -401,6 +412,26 @@
         return TAG + " [" + mSubscriptionGroup.hashCode() + "]";
     }
 
+    /**
+     * Dumps the state of this Vcn for logging and debugging purposes.
+     *
+     * <p>PII and credentials MUST NEVER be dumped here.
+     */
+    public void dump(IndentingPrintWriter pw) {
+        pw.println("Vcn (" + mSubscriptionGroup + "):");
+        pw.increaseIndent();
+
+        pw.println("mCurrentStatus: " + mCurrentStatus);
+
+        pw.println("mVcnGatewayConnections:");
+        for (VcnGatewayConnection gw : mVcnGatewayConnections.values()) {
+            gw.dump(pw);
+        }
+        pw.println();
+
+        pw.decreaseIndent();
+    }
+
     /** Retrieves the network score for a VCN Network */
     // Package visibility for use in VcnGatewayConnection
     static int getNetworkScore() {
@@ -412,8 +443,8 @@
     /** Callback used for passing status signals from a VcnGatewayConnection to its managing Vcn. */
     @VisibleForTesting(visibility = Visibility.PACKAGE)
     public interface VcnGatewayStatusCallback {
-        /** Called by a VcnGatewayConnection to indicate that it has entered safe mode. */
-        void onEnteredSafeMode();
+        /** Called by a VcnGatewayConnection to indicate that it's safe mode status has changed. */
+        void onSafeModeStatusChanged();
 
         /** Callback by a VcnGatewayConnection to indicate that an error occurred. */
         void onGatewayConnectionError(
@@ -439,8 +470,8 @@
         }
 
         @Override
-        public void onEnteredSafeMode() {
-            sendMessage(obtainMessage(MSG_CMD_ENTER_SAFE_MODE));
+        public void onSafeModeStatusChanged() {
+            sendMessage(obtainMessage(MSG_EVENT_SAFE_MODE_STATE_CHANGED));
         }
 
         @Override
diff --git a/services/core/java/com/android/server/vcn/VcnGatewayConnection.java b/services/core/java/com/android/server/vcn/VcnGatewayConnection.java
index 2ba8edd..df31221 100644
--- a/services/core/java/com/android/server/vcn/VcnGatewayConnection.java
+++ b/services/core/java/com/android/server/vcn/VcnGatewayConnection.java
@@ -23,6 +23,7 @@
 import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_VCN_MANAGED;
 import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
 import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
+import static android.net.ipsec.ike.exceptions.IkeProtocolException.ERROR_TYPE_AUTHENTICATION_FAILED;
 import static android.net.vcn.VcnManager.VCN_ERROR_CODE_CONFIG_ERROR;
 import static android.net.vcn.VcnManager.VCN_ERROR_CODE_INTERNAL_ERROR;
 import static android.net.vcn.VcnManager.VCN_ERROR_CODE_NETWORK_ERROR;
@@ -32,6 +33,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.content.Context;
+import android.net.ConnectivityManager;
 import android.net.InetAddresses;
 import android.net.IpPrefix;
 import android.net.IpSecManager;
@@ -44,6 +46,7 @@
 import android.net.NetworkAgent;
 import android.net.NetworkAgentConfig;
 import android.net.NetworkCapabilities;
+import android.net.NetworkProvider;
 import android.net.RouteInfo;
 import android.net.TelephonyNetworkSpecifier;
 import android.net.Uri;
@@ -55,7 +58,6 @@
 import android.net.ipsec.ike.IkeSessionCallback;
 import android.net.ipsec.ike.IkeSessionConfiguration;
 import android.net.ipsec.ike.IkeSessionParams;
-import android.net.ipsec.ike.exceptions.AuthenticationFailedException;
 import android.net.ipsec.ike.exceptions.IkeException;
 import android.net.ipsec.ike.exceptions.IkeInternalException;
 import android.net.ipsec.ike.exceptions.IkeProtocolException;
@@ -75,6 +77,7 @@
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.annotations.VisibleForTesting.Visibility;
+import com.android.internal.util.IndentingPrintWriter;
 import com.android.internal.util.State;
 import com.android.internal.util.StateMachine;
 import com.android.internal.util.WakeupMessage;
@@ -82,6 +85,7 @@
 import com.android.server.vcn.UnderlyingNetworkTracker.UnderlyingNetworkRecord;
 import com.android.server.vcn.UnderlyingNetworkTracker.UnderlyingNetworkTrackerCallback;
 import com.android.server.vcn.Vcn.VcnGatewayStatusCallback;
+import com.android.server.vcn.util.MtuUtils;
 
 import java.io.IOException;
 import java.net.Inet4Address;
@@ -92,6 +96,7 @@
 import java.util.Objects;
 import java.util.Set;
 import java.util.concurrent.TimeUnit;
+import java.util.function.Consumer;
 
 /**
  * A single VCN Gateway Connection, providing a single public-facing VCN network.
@@ -445,6 +450,44 @@
      */
     private static final int EVENT_SAFE_MODE_TIMEOUT_EXCEEDED = 10;
 
+    /**
+     * Sent when an IKE has completed migration, and created updated transforms for application.
+     *
+     * <p>Only relevant in the Connected state.
+     *
+     * @param arg1 The session token for the IKE Session that completed migration, used to prevent
+     *     out-of-date signals from propagating.
+     * @param obj @NonNull An EventMigrationCompletedInfo instance with relevant data.
+     */
+    private static final int EVENT_MIGRATION_COMPLETED = 11;
+
+    private static class EventMigrationCompletedInfo implements EventInfo {
+        @NonNull public final IpSecTransform inTransform;
+        @NonNull public final IpSecTransform outTransform;
+
+        EventMigrationCompletedInfo(
+                @NonNull IpSecTransform inTransform, @NonNull IpSecTransform outTransform) {
+            this.inTransform = Objects.requireNonNull(inTransform);
+            this.outTransform = Objects.requireNonNull(outTransform);
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(inTransform, outTransform);
+        }
+
+        @Override
+        public boolean equals(@Nullable Object other) {
+            if (!(other instanceof EventMigrationCompletedInfo)) {
+                return false;
+            }
+
+            final EventMigrationCompletedInfo rhs = (EventMigrationCompletedInfo) other;
+            return Objects.equals(inTransform, rhs.inTransform)
+                    && Objects.equals(outTransform, rhs.outTransform);
+        }
+    }
+
     @VisibleForTesting(visibility = Visibility.PRIVATE)
     @NonNull
     final DisconnectedState mDisconnectedState = new DisconnectedState();
@@ -504,6 +547,15 @@
     private boolean mIsQuitting = false;
 
     /**
+     * Whether the VcnGatewayConnection is in safe mode.
+     *
+     * <p>Upon hitting the safe mode timeout, this will be set to {@code true}. In safe mode, this
+     * VcnGatewayConnection will continue attempting to connect, and if a successful connection is
+     * made, safe mode will be exited.
+     */
+    private boolean mIsInSafeMode = false;
+
+    /**
      * The token used by the primary/current/active session.
      *
      * <p>This token MUST be updated when a new stateful/async session becomes the
@@ -562,8 +614,7 @@
      * <p>Set in Connected state, always @NonNull in Connected, Migrating states, @Nullable
      * otherwise.
      */
-    @VisibleForTesting(visibility = Visibility.PRIVATE)
-    NetworkAgent mNetworkAgent;
+    private VcnNetworkAgent mNetworkAgent;
 
     @Nullable private WakeupMessage mTeardownTimeoutAlarm;
     @Nullable private WakeupMessage mDisconnectRequestAlarm;
@@ -628,6 +679,14 @@
         start();
     }
 
+    /** Queries whether this VcnGatewayConnection is in safe mode. */
+    public boolean isInSafeMode() {
+        // Accessing internal state; must only be done on looper thread.
+        mVcnContext.ensureRunningOnLooperThread();
+
+        return mIsInSafeMode;
+    }
+
     /**
      * Asynchronously tears down this GatewayConnection, and any resources used.
      *
@@ -992,12 +1051,21 @@
         sessionLostWithoutCallback(token, exception);
     }
 
+    private static boolean isIkeAuthFailure(@NonNull Exception exception) {
+        if (!(exception instanceof IkeProtocolException)) {
+            return false;
+        }
+
+        return ((IkeProtocolException) exception).getErrorType()
+                == ERROR_TYPE_AUTHENTICATION_FAILED;
+    }
+
     private void notifyStatusCallbackForSessionClosed(@NonNull Exception exception) {
         final int errorCode;
         final String exceptionClass;
         final String exceptionMessage;
 
-        if (exception instanceof AuthenticationFailedException) {
+        if (isIkeAuthFailure(exception)) {
             errorCode = VCN_ERROR_CODE_CONFIG_ERROR;
             exceptionClass = exception.getClass().getName();
             exceptionMessage = exception.getMessage();
@@ -1034,6 +1102,14 @@
         sendMessageAndAcquireWakeLock(EVENT_SESSION_CLOSED, token);
     }
 
+    private void migrationCompleted(
+            int token, @NonNull IpSecTransform inTransform, @NonNull IpSecTransform outTransform) {
+        sendMessageAndAcquireWakeLock(
+                EVENT_MIGRATION_COMPLETED,
+                token,
+                new EventMigrationCompletedInfo(inTransform, outTransform));
+    }
+
     private void childTransformCreated(
             int token, @NonNull IpSecTransform transform, int direction) {
         sendMessageAndAcquireWakeLock(
@@ -1129,7 +1205,9 @@
                 case EVENT_SETUP_COMPLETED: // Fallthrough
                 case EVENT_DISCONNECT_REQUESTED: // Fallthrough
                 case EVENT_TEARDOWN_TIMEOUT_EXPIRED: // Fallthrough
-                case EVENT_SUBSCRIPTIONS_CHANGED:
+                case EVENT_SUBSCRIPTIONS_CHANGED: // Fallthrough
+                case EVENT_SAFE_MODE_TIMEOUT_EXCEEDED: // Fallthrough
+                case EVENT_MIGRATION_COMPLETED:
                     logUnexpectedEvent(msg.what);
                     break;
                 default:
@@ -1162,6 +1240,15 @@
             }
         }
 
+        protected void handleSafeModeTimeoutExceeded() {
+            mSafeModeTimeoutAlarm = null;
+
+            // Connectivity for this GatewayConnection is broken; tear down the Network.
+            teardownNetwork();
+            mIsInSafeMode = true;
+            mGatewayStatusCallback.onSafeModeStatusChanged();
+        }
+
         protected void logUnexpectedEvent(int what) {
             Slog.d(TAG, String.format(
                     "Unexpected event code %d in state %s", what, this.getClass().getSimpleName()));
@@ -1315,8 +1402,7 @@
                     }
                     break;
                 case EVENT_SAFE_MODE_TIMEOUT_EXCEEDED:
-                    mGatewayStatusCallback.onEnteredSafeMode();
-                    mSafeModeTimeoutAlarm = null;
+                    handleSafeModeTimeoutExceeded();
                     break;
                 default:
                     logUnhandledMessage(msg);
@@ -1401,8 +1487,7 @@
                     handleDisconnectRequested((EventDisconnectRequestedInfo) msg.obj);
                     break;
                 case EVENT_SAFE_MODE_TIMEOUT_EXCEEDED:
-                    mGatewayStatusCallback.onEnteredSafeMode();
-                    mSafeModeTimeoutAlarm = null;
+                    handleSafeModeTimeoutExceeded();
                     break;
                 default:
                     logUnhandledMessage(msg);
@@ -1414,48 +1499,61 @@
     private abstract class ConnectedStateBase extends ActiveBaseState {
         protected void updateNetworkAgent(
                 @NonNull IpSecTunnelInterface tunnelIface,
-                @NonNull NetworkAgent agent,
+                @NonNull VcnNetworkAgent agent,
                 @NonNull VcnChildSessionConfiguration childConfig) {
             final NetworkCapabilities caps =
                     buildNetworkCapabilities(mConnectionConfig, mUnderlying);
             final LinkProperties lp =
-                    buildConnectedLinkProperties(mConnectionConfig, tunnelIface, childConfig);
+                    buildConnectedLinkProperties(
+                            mConnectionConfig, tunnelIface, childConfig, mUnderlying);
 
             agent.sendNetworkCapabilities(caps);
             agent.sendLinkProperties(lp);
         }
 
-        protected NetworkAgent buildNetworkAgent(
+        protected VcnNetworkAgent buildNetworkAgent(
                 @NonNull IpSecTunnelInterface tunnelIface,
                 @NonNull VcnChildSessionConfiguration childConfig) {
             final NetworkCapabilities caps =
                     buildNetworkCapabilities(mConnectionConfig, mUnderlying);
             final LinkProperties lp =
-                    buildConnectedLinkProperties(mConnectionConfig, tunnelIface, childConfig);
+                    buildConnectedLinkProperties(
+                            mConnectionConfig, tunnelIface, childConfig, mUnderlying);
+            final NetworkAgentConfig nac =
+                    new NetworkAgentConfig.Builder()
+                            .setLegacyType(ConnectivityManager.TYPE_MOBILE)
+                            .build();
 
-            final NetworkAgent agent =
-                    new NetworkAgent(
-                            mVcnContext.getContext(),
-                            mVcnContext.getLooper(),
+            final VcnNetworkAgent agent =
+                    mDeps.newNetworkAgent(
+                            mVcnContext,
                             TAG,
                             caps,
                             lp,
                             Vcn.getNetworkScore(),
-                            new NetworkAgentConfig.Builder().build(),
-                            mVcnContext.getVcnNetworkProvider()) {
-                        @Override
-                        public void onNetworkUnwanted() {
-                            Slog.d(TAG, "NetworkAgent was unwanted");
-                            teardownAsynchronously();
-                        }
+                            nac,
+                            mVcnContext.getVcnNetworkProvider(),
+                            (agentRef) -> {
+                                // Only trigger teardown if the NetworkAgent hasn't been replaced or
+                                // changed. This guards against two cases - the first where
+                                // unwanted() may be called as a result of the
+                                // NetworkAgent.unregister() call, which might trigger a teardown
+                                // instead of just a Network disconnect, as well as the case where a
+                                // new NetworkAgent replaces an old one before the unwanted() call
+                                // is processed.
+                                if (mNetworkAgent != agentRef) {
+                                    Slog.d(TAG, "unwanted() called on stale NetworkAgent");
+                                    return;
+                                }
 
-                        @Override
-                        public void onValidationStatus(int status, @Nullable Uri redirectUri) {
-                            if (status == NetworkAgent.VALIDATION_STATUS_VALID) {
-                                clearFailedAttemptCounterAndSafeModeAlarm();
-                            }
-                        }
-                    };
+                                Slog.d(TAG, "NetworkAgent was unwanted");
+                                teardownAsynchronously();
+                            } /* networkUnwantedCallback */,
+                            (status) -> {
+                                if (status == NetworkAgent.VALIDATION_STATUS_VALID) {
+                                    clearFailedAttemptCounterAndSafeModeAlarm();
+                                }
+                            } /* validationStatusCallback */);
 
             agent.register();
             agent.markConnected();
@@ -1469,6 +1567,11 @@
             // Validated connection, clear failed attempt counter
             mFailedAttempts = 0;
             cancelSafeModeAlarm();
+
+            if (mIsInSafeMode) {
+                mIsInSafeMode = false;
+                mGatewayStatusCallback.onSafeModeStatusChanged();
+            }
         }
 
         protected void applyTransform(
@@ -1491,13 +1594,6 @@
         protected void setupInterface(
                 int token,
                 @NonNull IpSecTunnelInterface tunnelIface,
-                @NonNull VcnChildSessionConfiguration childConfig) {
-            setupInterface(token, tunnelIface, childConfig, null);
-        }
-
-        protected void setupInterface(
-                int token,
-                @NonNull IpSecTunnelInterface tunnelIface,
                 @NonNull VcnChildSessionConfiguration childConfig,
                 @Nullable VcnChildSessionConfiguration oldChildConfig) {
             try {
@@ -1579,16 +1675,23 @@
                             transformCreatedInfo.direction);
                     break;
                 case EVENT_SETUP_COMPLETED:
+                    final VcnChildSessionConfiguration oldChildConfig = mChildConfig;
                     mChildConfig = ((EventSetupCompletedInfo) msg.obj).childSessionConfig;
 
-                    setupInterfaceAndNetworkAgent(mCurrentToken, mTunnelIface, mChildConfig);
+                    setupInterfaceAndNetworkAgent(
+                            mCurrentToken, mTunnelIface, mChildConfig, oldChildConfig);
                     break;
                 case EVENT_DISCONNECT_REQUESTED:
                     handleDisconnectRequested((EventDisconnectRequestedInfo) msg.obj);
                     break;
                 case EVENT_SAFE_MODE_TIMEOUT_EXCEEDED:
-                    mGatewayStatusCallback.onEnteredSafeMode();
-                    mSafeModeTimeoutAlarm = null;
+                    handleSafeModeTimeoutExceeded();
+                    break;
+                case EVENT_MIGRATION_COMPLETED:
+                    final EventMigrationCompletedInfo migrationCompletedInfo =
+                            (EventMigrationCompletedInfo) msg.obj;
+
+                    handleMigrationCompleted(migrationCompletedInfo);
                     break;
                 default:
                     logUnhandledMessage(msg);
@@ -1596,6 +1699,24 @@
             }
         }
 
+        private void handleMigrationCompleted(EventMigrationCompletedInfo migrationCompletedInfo) {
+            applyTransform(
+                    mCurrentToken,
+                    mTunnelIface,
+                    mUnderlying.network,
+                    migrationCompletedInfo.inTransform,
+                    IpSecManager.DIRECTION_IN);
+
+            applyTransform(
+                    mCurrentToken,
+                    mTunnelIface,
+                    mUnderlying.network,
+                    migrationCompletedInfo.outTransform,
+                    IpSecManager.DIRECTION_OUT);
+
+            updateNetworkAgent(mTunnelIface, mNetworkAgent, mChildConfig);
+        }
+
         private void handleUnderlyingNetworkChanged(@NonNull Message msg) {
             final UnderlyingNetworkRecord oldUnderlying = mUnderlying;
             mUnderlying = ((EventUnderlyingNetworkChangedInfo) msg.obj).newUnderlying;
@@ -1626,8 +1747,9 @@
         protected void setupInterfaceAndNetworkAgent(
                 int token,
                 @NonNull IpSecTunnelInterface tunnelIface,
-                @NonNull VcnChildSessionConfiguration childConfig) {
-            setupInterface(token, tunnelIface, childConfig);
+                @NonNull VcnChildSessionConfiguration childConfig,
+                @NonNull VcnChildSessionConfiguration oldChildConfig) {
+            setupInterface(token, tunnelIface, childConfig, oldChildConfig);
 
             if (mNetworkAgent == null) {
                 mNetworkAgent = buildNetworkAgent(tunnelIface, childConfig);
@@ -1692,8 +1814,7 @@
                     handleDisconnectRequested((EventDisconnectRequestedInfo) msg.obj);
                     break;
                 case EVENT_SAFE_MODE_TIMEOUT_EXCEEDED:
-                    mGatewayStatusCallback.onEnteredSafeMode();
-                    mSafeModeTimeoutAlarm = null;
+                    handleSafeModeTimeoutExceeded();
                     break;
                 default:
                     logUnhandledMessage(msg);
@@ -1785,7 +1906,10 @@
     private static LinkProperties buildConnectedLinkProperties(
             @NonNull VcnGatewayConnectionConfig gatewayConnectionConfig,
             @NonNull IpSecTunnelInterface tunnelIface,
-            @NonNull VcnChildSessionConfiguration childConfig) {
+            @NonNull VcnChildSessionConfiguration childConfig,
+            @Nullable UnderlyingNetworkRecord underlying) {
+        final VcnControlPlaneIkeConfig controlPlaneConfig =
+                (VcnControlPlaneIkeConfig) gatewayConnectionConfig.getControlPlaneConfig();
         final LinkProperties lp = new LinkProperties();
 
         lp.setInterfaceName(tunnelIface.getInterfaceName());
@@ -1801,7 +1925,12 @@
         lp.addRoute(new RouteInfo(new IpPrefix(Inet6Address.ANY, 0), null /*gateway*/,
                 null /*iface*/, RouteInfo.RTN_UNICAST));
 
-        lp.setMtu(gatewayConnectionConfig.getMaxMtu());
+        final int underlyingMtu = (underlying == null) ? 0 : underlying.linkProperties.getMtu();
+        lp.setMtu(
+                MtuUtils.getMtu(
+                        controlPlaneConfig.getChildSessionParams().getSaProposals(),
+                        gatewayConnectionConfig.getMaxMtu(),
+                        underlyingMtu));
 
         return lp;
     }
@@ -1882,8 +2011,7 @@
                 @NonNull IpSecTransform inIpSecTransform,
                 @NonNull IpSecTransform outIpSecTransform) {
             Slog.v(TAG, "ChildTransformsMigrated; token " + mToken);
-            onIpSecTransformCreated(inIpSecTransform, IpSecManager.DIRECTION_IN);
-            onIpSecTransformCreated(outIpSecTransform, IpSecManager.DIRECTION_OUT);
+            migrationCompleted(mToken, inIpSecTransform, outIpSecTransform);
         }
 
         @Override
@@ -1894,6 +2022,27 @@
         }
     }
 
+    /**
+     * Dumps the state of this VcnGatewayConnection for logging and debugging purposes.
+     *
+     * <p>PII and credentials MUST NEVER be dumped here.
+     */
+    public void dump(IndentingPrintWriter pw) {
+        pw.println("VcnGatewayConnection (" + mConnectionConfig.getGatewayConnectionName() + "):");
+        pw.increaseIndent();
+
+        pw.println("Current state: " + getCurrentState().getClass().getSimpleName());
+        pw.println("mIsQuitting: " + mIsQuitting);
+        pw.println("mIsInSafeMode: " + mIsInSafeMode);
+        pw.println("mCurrentToken: " + mCurrentToken);
+        pw.println("mFailedAttempts: " + mFailedAttempts);
+        pw.println(
+                "mNetworkAgent.getNetwork(): "
+                        + (mNetworkAgent == null ? null : mNetworkAgent.getNetwork()));
+
+        pw.decreaseIndent();
+    }
+
     @VisibleForTesting(visibility = Visibility.PRIVATE)
     void setTunnelInterface(IpSecTunnelInterface tunnelIface) {
         mTunnelIface = tunnelIface;
@@ -1935,6 +2084,16 @@
     }
 
     @VisibleForTesting(visibility = Visibility.PRIVATE)
+    VcnNetworkAgent getNetworkAgent() {
+        return mNetworkAgent;
+    }
+
+    @VisibleForTesting(visibility = Visibility.PRIVATE)
+    void setNetworkAgent(@Nullable VcnNetworkAgent networkAgent) {
+        mNetworkAgent = networkAgent;
+    }
+
+    @VisibleForTesting(visibility = Visibility.PRIVATE)
     void sendDisconnectRequestedAndAcquireWakelock(String reason, boolean shouldQuit) {
         sendMessageAndAcquireWakeLock(
                 EVENT_DISCONNECT_REQUESTED,
@@ -1947,7 +2106,7 @@
                 (VcnControlPlaneIkeConfig) mConnectionConfig.getControlPlaneConfig();
         final IkeSessionParams.Builder builder =
                 new IkeSessionParams.Builder(controlPlaneConfig.getIkeSessionParams());
-        builder.setConfiguredNetwork(network);
+        builder.setNetwork(network);
 
         return builder.build();
     }
@@ -2018,6 +2177,29 @@
             return new WakeupMessage(vcnContext.getContext(), handler, tag, runnable);
         }
 
+        /** Builds a new VcnNetworkAgent. */
+        public VcnNetworkAgent newNetworkAgent(
+                @NonNull VcnContext vcnContext,
+                @NonNull String tag,
+                @NonNull NetworkCapabilities caps,
+                @NonNull LinkProperties lp,
+                @NonNull int score,
+                @NonNull NetworkAgentConfig nac,
+                @NonNull NetworkProvider provider,
+                @NonNull Consumer<VcnNetworkAgent> networkUnwantedCallback,
+                @NonNull Consumer<Integer> validationStatusCallback) {
+            return new VcnNetworkAgent(
+                    vcnContext,
+                    tag,
+                    caps,
+                    lp,
+                    score,
+                    nac,
+                    provider,
+                    networkUnwantedCallback,
+                    validationStatusCallback);
+        }
+
         /** Gets the elapsed real time since boot, in millis. */
         public long getElapsedRealTime() {
             return SystemClock.elapsedRealtime();
@@ -2131,4 +2313,73 @@
             mImpl.release();
         }
     }
+
+    /** Proxy Implementation of NetworkAgent, used for testing. */
+    @VisibleForTesting(visibility = Visibility.PRIVATE)
+    public static class VcnNetworkAgent {
+        private final NetworkAgent mImpl;
+
+        public VcnNetworkAgent(
+                @NonNull VcnContext vcnContext,
+                @NonNull String tag,
+                @NonNull NetworkCapabilities caps,
+                @NonNull LinkProperties lp,
+                @NonNull int score,
+                @NonNull NetworkAgentConfig nac,
+                @NonNull NetworkProvider provider,
+                @NonNull Consumer<VcnNetworkAgent> networkUnwantedCallback,
+                @NonNull Consumer<Integer> validationStatusCallback) {
+            mImpl =
+                    new NetworkAgent(
+                            vcnContext.getContext(),
+                            vcnContext.getLooper(),
+                            tag,
+                            caps,
+                            lp,
+                            score,
+                            nac,
+                            provider) {
+                        @Override
+                        public void onNetworkUnwanted() {
+                            networkUnwantedCallback.accept(VcnNetworkAgent.this);
+                        }
+
+                        @Override
+                        public void onValidationStatus(int status, @Nullable Uri redirectUri) {
+                            validationStatusCallback.accept(status);
+                        }
+                    };
+        }
+
+        /** Registers the underlying NetworkAgent */
+        public void register() {
+            mImpl.register();
+        }
+
+        /** Marks the underlying NetworkAgent as connected */
+        public void markConnected() {
+            mImpl.markConnected();
+        }
+
+        /** Unregisters the underlying NetworkAgent */
+        public void unregister() {
+            mImpl.unregister();
+        }
+
+        /** Sends new NetworkCapabilities for the underlying NetworkAgent */
+        public void sendNetworkCapabilities(@NonNull NetworkCapabilities caps) {
+            mImpl.sendNetworkCapabilities(caps);
+        }
+
+        /** Sends new LinkProperties for the underlying NetworkAgent */
+        public void sendLinkProperties(@NonNull LinkProperties lp) {
+            mImpl.sendLinkProperties(lp);
+        }
+
+        /** Retrieves the Network for the underlying NetworkAgent */
+        @Nullable
+        public Network getNetwork() {
+            return mImpl.getNetwork();
+        }
+    }
 }
diff --git a/services/core/java/com/android/server/vcn/VcnNetworkProvider.java b/services/core/java/com/android/server/vcn/VcnNetworkProvider.java
index a909695..be0deb5 100644
--- a/services/core/java/com/android/server/vcn/VcnNetworkProvider.java
+++ b/services/core/java/com/android/server/vcn/VcnNetworkProvider.java
@@ -29,6 +29,7 @@
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.annotations.VisibleForTesting.Visibility;
+import com.android.internal.util.IndentingPrintWriter;
 
 import java.util.Objects;
 import java.util.Set;
@@ -129,10 +130,50 @@
             mScore = score;
             mProviderId = providerId;
         }
+
+        /**
+         * Dumps the state of this NetworkRequestEntry for logging and debugging purposes.
+         *
+         * <p>PII and credentials MUST NEVER be dumped here.
+         */
+        public void dump(IndentingPrintWriter pw) {
+            pw.println("NetworkRequestEntry:");
+            pw.increaseIndent();
+
+            pw.println("mRequest: " + mRequest);
+            pw.println("mScore: " + mScore);
+            pw.println("mProviderId: " + mProviderId);
+
+            pw.decreaseIndent();
+        }
     }
 
     // package-private
     interface NetworkRequestListener {
         void onNetworkRequested(@NonNull NetworkRequest request, int score, int providerId);
     }
+
+    /**
+     * Dumps the state of this VcnNetworkProvider for logging and debugging purposes.
+     *
+     * <p>PII and credentials MUST NEVER be dumped here.
+     */
+    public void dump(IndentingPrintWriter pw) {
+        pw.println("VcnNetworkProvider:");
+        pw.increaseIndent();
+
+        pw.println("mListeners:");
+        for (NetworkRequestListener listener : mListeners) {
+            pw.println(listener);
+        }
+        pw.println();
+
+        pw.println("mRequests.values:");
+        for (NetworkRequestEntry entry : mRequests.values()) {
+            entry.dump(pw);
+        }
+        pw.println();
+
+        pw.decreaseIndent();
+    }
 }
diff --git a/services/core/java/com/android/server/vcn/util/MtuUtils.java b/services/core/java/com/android/server/vcn/util/MtuUtils.java
new file mode 100644
index 0000000..5d40cca
--- /dev/null
+++ b/services/core/java/com/android/server/vcn/util/MtuUtils.java
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.vcn.util;
+
+import static android.net.ipsec.ike.SaProposal.ENCRYPTION_ALGORITHM_3DES;
+import static android.net.ipsec.ike.SaProposal.ENCRYPTION_ALGORITHM_AES_CBC;
+import static android.net.ipsec.ike.SaProposal.ENCRYPTION_ALGORITHM_AES_CTR;
+import static android.net.ipsec.ike.SaProposal.ENCRYPTION_ALGORITHM_AES_GCM_12;
+import static android.net.ipsec.ike.SaProposal.ENCRYPTION_ALGORITHM_AES_GCM_16;
+import static android.net.ipsec.ike.SaProposal.ENCRYPTION_ALGORITHM_AES_GCM_8;
+import static android.net.ipsec.ike.SaProposal.ENCRYPTION_ALGORITHM_CHACHA20_POLY1305;
+import static android.net.ipsec.ike.SaProposal.INTEGRITY_ALGORITHM_AES_CMAC_96;
+import static android.net.ipsec.ike.SaProposal.INTEGRITY_ALGORITHM_AES_XCBC_96;
+import static android.net.ipsec.ike.SaProposal.INTEGRITY_ALGORITHM_HMAC_SHA1_96;
+import static android.net.ipsec.ike.SaProposal.INTEGRITY_ALGORITHM_HMAC_SHA2_256_128;
+import static android.net.ipsec.ike.SaProposal.INTEGRITY_ALGORITHM_HMAC_SHA2_384_192;
+import static android.net.ipsec.ike.SaProposal.INTEGRITY_ALGORITHM_HMAC_SHA2_512_256;
+import static android.net.ipsec.ike.SaProposal.INTEGRITY_ALGORITHM_NONE;
+
+import static com.android.net.module.util.NetworkStackConstants.IPV6_MIN_MTU;
+
+import static java.lang.Math.max;
+import static java.util.Collections.unmodifiableMap;
+
+import android.annotation.NonNull;
+import android.net.ipsec.ike.ChildSaProposal;
+import android.util.ArrayMap;
+import android.util.Pair;
+import android.util.Slog;
+
+import java.util.List;
+import java.util.Map;
+
+/** @hide */
+public class MtuUtils {
+    private static final String TAG = MtuUtils.class.getSimpleName();
+    /**
+     * Max ESP overhead possible
+     *
+     * <p>60 (Outer IPv4 + options) + 8 (UDP encap) + 4 (SPI) + 4 (Seq) + 2 (Pad + NextHeader)
+     */
+    private static final int GENERIC_ESP_OVERHEAD_MAX = 78;
+
+    /** Maximum overheads of authentication algorithms, keyed on IANA-defined constants */
+    private static final Map<Integer, Integer> AUTH_ALGORITHM_OVERHEAD;
+
+    static {
+        final Map<Integer, Integer> map = new ArrayMap<>();
+        map.put(INTEGRITY_ALGORITHM_NONE, 0);
+        map.put(INTEGRITY_ALGORITHM_HMAC_SHA1_96, 12);
+        map.put(INTEGRITY_ALGORITHM_AES_XCBC_96, 12);
+        map.put(INTEGRITY_ALGORITHM_HMAC_SHA2_256_128, 32);
+        map.put(INTEGRITY_ALGORITHM_HMAC_SHA2_384_192, 48);
+        map.put(INTEGRITY_ALGORITHM_HMAC_SHA2_512_256, 64);
+        map.put(INTEGRITY_ALGORITHM_AES_CMAC_96, 12);
+
+        AUTH_ALGORITHM_OVERHEAD = unmodifiableMap(map);
+    }
+
+    /** Maximum overheads of encryption algorithms, keyed on IANA-defined constants */
+    private static final Map<Integer, Integer> CRYPT_ALGORITHM_OVERHEAD;
+
+    static {
+        final Map<Integer, Integer> map = new ArrayMap<>();
+        map.put(ENCRYPTION_ALGORITHM_3DES, 15); // 8 (IV) + 7 (Max pad)
+        map.put(ENCRYPTION_ALGORITHM_AES_CBC, 31); // 16 (IV) + 15 (Max pad)
+        map.put(ENCRYPTION_ALGORITHM_AES_CTR, 11); // 8 (IV) + 3 (Max pad)
+
+        CRYPT_ALGORITHM_OVERHEAD = unmodifiableMap(map);
+    }
+
+    /** Maximum overheads of combined mode algorithms, keyed on IANA-defined constants */
+    private static final Map<Integer, Integer> AUTHCRYPT_ALGORITHM_OVERHEAD;
+
+    static {
+        final Map<Integer, Integer> map = new ArrayMap<>();
+        map.put(ENCRYPTION_ALGORITHM_AES_GCM_8, 19); // 8 (IV) + 3 (Max pad) + 8 (ICV)
+        map.put(ENCRYPTION_ALGORITHM_AES_GCM_12, 23); // 8 (IV) + 3 (Max pad) + 12 (ICV)
+        map.put(ENCRYPTION_ALGORITHM_AES_GCM_16, 27); // 8 (IV) + 3 (Max pad) + 16 (ICV)
+        map.put(ENCRYPTION_ALGORITHM_CHACHA20_POLY1305, 27); // 8 (IV) + 3 (Max pad) + 16 (ICV)
+
+        AUTHCRYPT_ALGORITHM_OVERHEAD = unmodifiableMap(map);
+    }
+
+    /**
+     * Calculates the MTU of the inner interface based on the parameters provided
+     *
+     * <p>The MTU of the inner interface will be the minimum of the following:
+     *
+     * <ul>
+     *   <li>The MTU of the outer interface, minus the greatest ESP overhead (based on proposed
+     *       algorithms).
+     *   <li>The maximum MTU as provided in the arguments.
+     * </ul>
+     */
+    public static int getMtu(
+            @NonNull List<ChildSaProposal> childProposals, int maxMtu, int underlyingMtu) {
+        if (underlyingMtu <= 0) {
+            return IPV6_MIN_MTU;
+        }
+
+        int maxAuthOverhead = 0;
+        int maxCryptOverhead = 0;
+        int maxAuthCryptOverhead = 0;
+
+        for (ChildSaProposal proposal : childProposals) {
+            for (Pair<Integer, Integer> encryptionAlgoPair : proposal.getEncryptionAlgorithms()) {
+                final int algo = encryptionAlgoPair.first;
+
+                if (AUTHCRYPT_ALGORITHM_OVERHEAD.containsKey(algo)) {
+                    maxAuthCryptOverhead =
+                            max(maxAuthCryptOverhead, AUTHCRYPT_ALGORITHM_OVERHEAD.get(algo));
+                    continue;
+                } else if (CRYPT_ALGORITHM_OVERHEAD.containsKey(algo)) {
+                    maxCryptOverhead = max(maxCryptOverhead, CRYPT_ALGORITHM_OVERHEAD.get(algo));
+                    continue;
+                }
+
+                Slog.wtf(TAG, "Unknown encryption algorithm requested: " + algo);
+                return IPV6_MIN_MTU;
+            }
+
+            for (int algo : proposal.getIntegrityAlgorithms()) {
+                if (AUTH_ALGORITHM_OVERHEAD.containsKey(algo)) {
+                    maxAuthOverhead = max(maxAuthOverhead, AUTH_ALGORITHM_OVERHEAD.get(algo));
+                    continue;
+                }
+
+                Slog.wtf(TAG, "Unknown integrity algorithm requested: " + algo);
+                return IPV6_MIN_MTU;
+            }
+        }
+
+        // Return minimum of maxMtu, and the adjusted MTUs based on algorithms.
+        final int combinedModeMtu = underlyingMtu - maxAuthCryptOverhead - GENERIC_ESP_OVERHEAD_MAX;
+        final int normalModeMtu =
+                underlyingMtu - maxCryptOverhead - maxAuthOverhead - GENERIC_ESP_OVERHEAD_MAX;
+        return Math.min(Math.min(maxMtu, combinedModeMtu), normalModeMtu);
+    }
+}
diff --git a/services/core/jni/Android.bp b/services/core/jni/Android.bp
index ea47a27..d0bd8b3 100644
--- a/services/core/jni/Android.bp
+++ b/services/core/jni/Android.bp
@@ -102,6 +102,7 @@
         "libaudioclient",
         "libbase",
         "libappfuse",
+        "libbinder_ndk",
         "libbinder",
         "libcutils",
         "libcrypto",
@@ -110,7 +111,7 @@
         "libhardware",
         "libhardware_legacy",
         "libhidlbase",
-        "libkeystore_binder",
+        "libmemtrackproxy",
         "libmtp",
         "libnativehelper",
         "libprocessgroup",
@@ -155,6 +156,7 @@
         "android.hardware.input.classifier@1.0",
         "android.hardware.ir@1.0",
         "android.hardware.light@2.0",
+        "android.hardware.memtrack-V1-ndk_platform",
         "android.hardware.power@1.0",
         "android.hardware.power@1.1",
         "android.hardware.power-V1-cpp",
diff --git a/services/core/jni/com_android_server_SystemServer.cpp b/services/core/jni/com_android_server_SystemServer.cpp
index d18043f..b93b8ab 100644
--- a/services/core/jni/com_android_server_SystemServer.cpp
+++ b/services/core/jni/com_android_server_SystemServer.cpp
@@ -23,11 +23,14 @@
 #include <jni.h>
 #include <nativehelper/JNIHelp.h>
 
+#include <android/binder_manager.h>
+#include <android/binder_stability.h>
 #include <android/hidl/manager/1.2/IServiceManager.h>
 #include <binder/IServiceManager.h>
 #include <hidl/HidlTransportSupport.h>
 #include <incremental_service.h>
 
+#include <memtrackproxy/MemtrackProxy.h>
 #include <schedulerservice/SchedulingPolicyService.h>
 #include <sensorservice/SensorService.h>
 #include <sensorservicehidl/SensorManager.h>
@@ -57,6 +60,21 @@
 
 }
 
+static void android_server_SystemServer_startMemtrackProxyService(JNIEnv* env,
+                                                                  jobject /* clazz */) {
+    using aidl::android::hardware::memtrack::MemtrackProxy;
+
+    const char* memtrackProxyService = "memtrack.proxy";
+
+    std::shared_ptr<MemtrackProxy> memtrack_proxy = ndk::SharedRefBase::make<MemtrackProxy>();
+    auto binder = memtrack_proxy->asBinder();
+
+    AIBinder_forceDowngradeToLocalStability(binder.get());
+
+    const binder_exception_t err = AServiceManager_addService(binder.get(), memtrackProxyService);
+    LOG_ALWAYS_FATAL_IF(err != EX_NONE, "Cannot register %s: %d", memtrackProxyService, err);
+}
+
 static void android_server_SystemServer_startHidlServices(JNIEnv* env, jobject /* clazz */) {
     using ::android::frameworks::schedulerservice::V1_0::ISchedulingPolicyService;
     using ::android::frameworks::schedulerservice::V1_0::implementation::SchedulingPolicyService;
@@ -121,6 +139,8 @@
 static const JNINativeMethod gMethods[] = {
         /* name, signature, funcPtr */
         {"startSensorService", "()V", (void*)android_server_SystemServer_startSensorService},
+        {"startMemtrackProxyService", "()V",
+         (void*)android_server_SystemServer_startMemtrackProxyService},
         {"startHidlServices", "()V", (void*)android_server_SystemServer_startHidlServices},
         {"initZygoteChildHeapProfiling", "()V",
          (void*)android_server_SystemServer_initZygoteChildHeapProfiling},
diff --git a/services/core/jni/com_android_server_power_PowerManagerService.cpp b/services/core/jni/com_android_server_power_PowerManagerService.cpp
index 5fde550..7a6d310 100644
--- a/services/core/jni/com_android_server_power_PowerManagerService.cpp
+++ b/services/core/jni/com_android_server_power_PowerManagerService.cpp
@@ -191,19 +191,18 @@
     static std::array<std::atomic<HalSupport>,
                       static_cast<int32_t>(Boost::DISPLAY_UPDATE_IMMINENT) + 1>
             boostSupportedArray = {HalSupport::UNKNOWN};
+    size_t idx = static_cast<size_t>(boost);
 
     // Quick return if boost is not supported by HAL
-    if (boost > Boost::DISPLAY_UPDATE_IMMINENT ||
-        boostSupportedArray[static_cast<int32_t>(boost)] == HalSupport::OFF) {
+    if (idx >= boostSupportedArray.size() || boostSupportedArray[idx] == HalSupport::OFF) {
         ALOGV("Skipped setPowerBoost %s because HAL doesn't support it", toString(boost).c_str());
         return;
     }
 
-    if (boostSupportedArray[static_cast<int32_t>(boost)] == HalSupport::UNKNOWN) {
+    if (boostSupportedArray[idx] == HalSupport::UNKNOWN) {
         bool isSupported = false;
         handle->isBoostSupported(boost, &isSupported);
-        boostSupportedArray[static_cast<int32_t>(boost)] =
-            isSupported ? HalSupport::ON : HalSupport::OFF;
+        boostSupportedArray[idx] = isSupported ? HalSupport::ON : HalSupport::OFF;
         if (!isSupported) {
             ALOGV("Skipped setPowerBoost %s because HAL doesn't support it",
                   toString(boost).c_str());
@@ -231,19 +230,18 @@
     // Need to increase the array if more mode supported.
     static std::array<std::atomic<HalSupport>, static_cast<int32_t>(Mode::DISPLAY_INACTIVE) + 1>
             modeSupportedArray = {HalSupport::UNKNOWN};
+    size_t idx = static_cast<size_t>(mode);
 
     // Quick return if mode is not supported by HAL
-    if (mode > Mode::DISPLAY_INACTIVE ||
-        modeSupportedArray[static_cast<int32_t>(mode)] == HalSupport::OFF) {
+    if (idx >= modeSupportedArray.size() || modeSupportedArray[idx] == HalSupport::OFF) {
         ALOGV("Skipped setPowerMode %s because HAL doesn't support it", toString(mode).c_str());
         return false;
     }
 
-    if (modeSupportedArray[static_cast<int32_t>(mode)] == HalSupport::UNKNOWN) {
+    if (modeSupportedArray[idx] == HalSupport::UNKNOWN) {
         bool isSupported = false;
         handle->isModeSupported(mode, &isSupported);
-        modeSupportedArray[static_cast<int32_t>(mode)] =
-            isSupported ? HalSupport::ON : HalSupport::OFF;
+        modeSupportedArray[idx] = isSupported ? HalSupport::ON : HalSupport::OFF;
         if (!isSupported) {
             ALOGV("Skipped setPowerMode %s because HAL doesn't support it", toString(mode).c_str());
             return false;
diff --git a/services/incremental/Android.bp b/services/incremental/Android.bp
index 7e1e99f..1a96048 100644
--- a/services/incremental/Android.bp
+++ b/services/incremental/Android.bp
@@ -76,6 +76,7 @@
         "libcutils",
         "libincfs",
         "liblog",
+        "libpermission",
         "libz",
         "libziparchive",
     ],
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index 46ec65d..81ec8f4 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -96,6 +96,7 @@
 import com.android.internal.widget.ILockSettings;
 import com.android.server.am.ActivityManagerService;
 import com.android.server.appbinding.AppBindingService;
+import com.android.server.art.ArtManagerLocal;
 import com.android.server.attention.AttentionManagerService;
 import com.android.server.audio.AudioService;
 import com.android.server.biometrics.AuthService;
@@ -392,6 +393,11 @@
     private static native void startSensorService();
 
     /**
+     * Start the memtrack proxy service.
+     */
+    private static native void startMemtrackProxyService();
+
+    /**
      * Start all HIDL services that are run inside the system server. This may take some time.
      */
     private static native void startHidlServices();
@@ -829,6 +835,12 @@
         mSystemServiceManager.startService(UriGrantsManagerService.Lifecycle.class);
         t.traceEnd();
 
+        // Start MemtrackProxyService before ActivityManager, so that early calls
+        // to Memtrack::getMemory() don't fail.
+        t.traceBegin("MemtrackProxyService");
+        startMemtrackProxyService();
+        t.traceEnd();
+
         // Activity manager runs the show.
         t.traceBegin("StartActivityManager");
         // TODO: Might need to move after migration to WM.
@@ -2330,6 +2342,10 @@
         }
         t.traceEnd();
 
+        t.traceBegin("ArtManagerLocal");
+        LocalManagerRegistry.addManager(ArtManagerLocal.class, new ArtManagerLocal());
+        t.traceEnd();
+
         t.traceBegin("StartBootPhaseDeviceSpecificServicesReady");
         mSystemServiceManager.startBootPhase(t, SystemService.PHASE_DEVICE_SPECIFIC_SERVICES_READY);
         t.traceEnd();
diff --git a/services/net/java/android/net/util/KeepalivePacketDataUtil.java b/services/net/java/android/net/util/KeepalivePacketDataUtil.java
index 6e539bb..5666985 100644
--- a/services/net/java/android/net/util/KeepalivePacketDataUtil.java
+++ b/services/net/java/android/net/util/KeepalivePacketDataUtil.java
@@ -80,12 +80,12 @@
         parcel.srcPort = pkt.getSrcPort();
         parcel.dstAddress = dstAddress.getAddress();
         parcel.dstPort = pkt.getDstPort();
-        parcel.seq = pkt.tcpSeq;
-        parcel.ack = pkt.tcpAck;
-        parcel.rcvWnd = pkt.tcpWindow;
-        parcel.rcvWndScale = pkt.tcpWindowScale;
-        parcel.tos = pkt.ipTos;
-        parcel.ttl = pkt.ipTtl;
+        parcel.seq = pkt.getTcpSeq();
+        parcel.ack = pkt.getTcpAck();
+        parcel.rcvWnd = pkt.getTcpWindow();
+        parcel.rcvWndScale = pkt.getTcpWindowScale();
+        parcel.tos = pkt.getIpTos();
+        parcel.ttl = pkt.getIpTtl();
         return parcel;
     }
 
diff --git a/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsServiceTestable.java b/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsServiceTestable.java
index 1db5fcc..41562bb 100644
--- a/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsServiceTestable.java
+++ b/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsServiceTestable.java
@@ -208,4 +208,9 @@
             parcel.recycle();
         }
     }
-}
+
+    @Override
+    void setKeystorePassword(byte[] password, int userHandle) {
+
+    }
+}
\ No newline at end of file
diff --git a/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsStorageTestable.java b/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsStorageTestable.java
index 691d174..f2bb1d6 100644
--- a/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsStorageTestable.java
+++ b/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsStorageTestable.java
@@ -87,6 +87,11 @@
     }
 
     @Override
+    String getRebootEscrowFile(int userId) {
+        return makeDirs(mStorageDir, super.getRebootEscrowFile(userId)).getAbsolutePath();
+    }
+
+    @Override
     protected File getSyntheticPasswordDirectoryForUser(int userId) {
         return makeDirs(mStorageDir, super.getSyntheticPasswordDirectoryForUser(
                 userId).getAbsolutePath());
diff --git a/services/tests/servicestests/src/com/android/server/locksettings/MockLockSettingsContext.java b/services/tests/servicestests/src/com/android/server/locksettings/MockLockSettingsContext.java
index 2b9a05c..efa1b04 100644
--- a/services/tests/servicestests/src/com/android/server/locksettings/MockLockSettingsContext.java
+++ b/services/tests/servicestests/src/com/android/server/locksettings/MockLockSettingsContext.java
@@ -20,11 +20,16 @@
 import android.app.NotificationManager;
 import android.app.admin.DevicePolicyManager;
 import android.app.trust.TrustManager;
+import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.ContextWrapper;
+import android.content.Intent;
+import android.content.IntentFilter;
 import android.content.pm.PackageManager;
 import android.hardware.face.FaceManager;
 import android.hardware.fingerprint.FingerprintManager;
+import android.os.Handler;
+import android.os.UserHandle;
 import android.os.UserManager;
 import android.os.storage.StorageManager;
 
@@ -94,4 +99,11 @@
     public int checkCallingOrSelfPermission(String permission) {
         return PackageManager.PERMISSION_GRANTED;
     }
+
+    @Override
+    public Intent registerReceiverAsUser(BroadcastReceiver receiver,
+            UserHandle user, IntentFilter filter, String broadcastPermission,
+            Handler scheduler) {
+        return null;
+    }
 }
diff --git a/services/tests/servicestests/src/com/android/server/locksettings/RebootEscrowManagerTests.java b/services/tests/servicestests/src/com/android/server/locksettings/RebootEscrowManagerTests.java
index 8c08226..49a54ec 100644
--- a/services/tests/servicestests/src/com/android/server/locksettings/RebootEscrowManagerTests.java
+++ b/services/tests/servicestests/src/com/android/server/locksettings/RebootEscrowManagerTests.java
@@ -21,6 +21,11 @@
 import static android.content.pm.UserInfo.FLAG_PROFILE;
 import static android.os.UserHandle.USER_SYSTEM;
 
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_ESCROW_NOT_READY;
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_NONE;
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_PROVIDER_MISMATCH;
+import static com.android.internal.widget.LockSettingsInternal.ARM_REBOOT_ERROR_STORE_ESCROW_KEY;
+
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
@@ -327,7 +332,7 @@
 
         assertNull(
                 mStorage.getString(RebootEscrowManager.REBOOT_ESCROW_ARMED_KEY, null, USER_SYSTEM));
-        assertTrue(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_NONE, mService.armRebootEscrowIfNeeded());
         assertNotNull(
                 mStorage.getString(RebootEscrowManager.REBOOT_ESCROW_ARMED_KEY, null, USER_SYSTEM));
         verify(mRebootEscrow).storeKey(any());
@@ -351,7 +356,7 @@
 
         when(mServiceConnection.wrapBlob(any(), anyLong(), anyLong()))
                 .thenAnswer(invocation -> invocation.getArgument(0));
-        assertTrue(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_NONE, mService.armRebootEscrowIfNeeded());
         verify(mServiceConnection).wrapBlob(any(), anyLong(), anyLong());
 
         assertTrue(mStorage.hasRebootEscrow(PRIMARY_USER_ID));
@@ -373,7 +378,7 @@
         assertNull(
                 mStorage.getString(RebootEscrowManager.REBOOT_ESCROW_ARMED_KEY, null, USER_SYSTEM));
         doThrow(ServiceSpecificException.class).when(mRebootEscrow).storeKey(any());
-        assertFalse(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_STORE_ESCROW_KEY, mService.armRebootEscrowIfNeeded());
         verify(mRebootEscrow).storeKey(any());
     }
 
@@ -396,7 +401,7 @@
 
         assertNull(
                 mStorage.getString(RebootEscrowManager.REBOOT_ESCROW_ARMED_KEY, null, USER_SYSTEM));
-        assertTrue(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_NONE, mService.armRebootEscrowIfNeeded());
         assertNotNull(
                 mStorage.getString(RebootEscrowManager.REBOOT_ESCROW_ARMED_KEY, null, USER_SYSTEM));
         verify(mRebootEscrow, times(1)).storeKey(any());
@@ -408,15 +413,24 @@
 
     @Test
     public void armService_NoInitialization_Failure() throws Exception {
-        assertFalse(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_ESCROW_NOT_READY, mService.armRebootEscrowIfNeeded());
         verifyNoMoreInteractions(mRebootEscrow);
     }
 
     @Test
     public void armService_RebootEscrowServiceException_Failure() throws Exception {
+        RebootEscrowListener mockListener = mock(RebootEscrowListener.class);
+        mService.setRebootEscrowListener(mockListener);
+        mService.prepareRebootEscrow();
+
+        clearInvocations(mRebootEscrow);
+        mService.callToRebootEscrowIfNeeded(PRIMARY_USER_ID, FAKE_SP_VERSION, FAKE_AUTH_TOKEN);
+        verify(mockListener).onPreparedForReboot(eq(true));
+        verify(mRebootEscrow, never()).storeKey(any());
+
         doThrow(RemoteException.class).when(mRebootEscrow).storeKey(any());
-        assertFalse(mService.armRebootEscrowIfNeeded());
-        verifyNoMoreInteractions(mRebootEscrow);
+        assertEquals(ARM_REBOOT_ERROR_STORE_ESCROW_KEY, mService.armRebootEscrowIfNeeded());
+        verify(mRebootEscrow).storeKey(any());
     }
 
     @Test
@@ -439,7 +453,7 @@
         verify(mRebootEscrow, never()).storeKey(any());
 
         ArgumentCaptor<byte[]> keyByteCaptor = ArgumentCaptor.forClass(byte[].class);
-        assertTrue(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_NONE, mService.armRebootEscrowIfNeeded());
         verify(mRebootEscrow).storeKey(keyByteCaptor.capture());
         verify(mKeyStoreManager).getKeyStoreEncryptionKey();
 
@@ -483,7 +497,7 @@
         // Use x -> x for both wrap & unwrap functions.
         when(mServiceConnection.wrapBlob(any(), anyLong(), anyLong()))
                 .thenAnswer(invocation -> invocation.getArgument(0));
-        assertTrue(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_NONE, mService.armRebootEscrowIfNeeded());
         verify(mServiceConnection).wrapBlob(any(), anyLong(), anyLong());
         assertTrue(mStorage.hasRebootEscrowServerBlob());
 
@@ -520,7 +534,7 @@
         // Use x -> x for both wrap & unwrap functions.
         when(mServiceConnection.wrapBlob(any(), anyLong(), anyLong()))
                 .thenAnswer(invocation -> invocation.getArgument(0));
-        assertTrue(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_NONE, mService.armRebootEscrowIfNeeded());
         verify(mServiceConnection).wrapBlob(any(), anyLong(), anyLong());
         assertTrue(mStorage.hasRebootEscrowServerBlob());
 
@@ -557,7 +571,7 @@
         // Use x -> x for both wrap & unwrap functions.
         when(mServiceConnection.wrapBlob(any(), anyLong(), anyLong()))
                 .thenAnswer(invocation -> invocation.getArgument(0));
-        assertTrue(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_NONE, mService.armRebootEscrowIfNeeded());
         verify(mServiceConnection).wrapBlob(any(), anyLong(), anyLong());
         assertTrue(mStorage.hasRebootEscrowServerBlob());
 
@@ -597,7 +611,7 @@
         // Use x -> x for both wrap & unwrap functions.
         when(mServiceConnection.wrapBlob(any(), anyLong(), anyLong()))
                 .thenAnswer(invocation -> invocation.getArgument(0));
-        assertTrue(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_NONE, mService.armRebootEscrowIfNeeded());
         verify(mServiceConnection).wrapBlob(any(), anyLong(), anyLong());
         assertTrue(mStorage.hasRebootEscrowServerBlob());
 
@@ -635,7 +649,7 @@
 
         verify(mRebootEscrow, never()).storeKey(any());
 
-        assertTrue(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_NONE, mService.armRebootEscrowIfNeeded());
         verify(mRebootEscrow).storeKey(any());
 
         assertTrue(mStorage.hasRebootEscrow(PRIMARY_USER_ID));
@@ -695,7 +709,7 @@
         verify(mRebootEscrow, never()).storeKey(any());
 
         ArgumentCaptor<byte[]> keyByteCaptor = ArgumentCaptor.forClass(byte[].class);
-        assertTrue(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_NONE, mService.armRebootEscrowIfNeeded());
         verify(mRebootEscrow).storeKey(keyByteCaptor.capture());
 
         assertTrue(mStorage.hasRebootEscrow(PRIMARY_USER_ID));
@@ -732,8 +746,7 @@
         verify(mockListener).onPreparedForReboot(eq(true));
 
         verify(mRebootEscrow, never()).storeKey(any());
-
-        assertTrue(mService.armRebootEscrowIfNeeded());
+        assertEquals(ARM_REBOOT_ERROR_NONE, mService.armRebootEscrowIfNeeded());
         verify(mRebootEscrow).storeKey(any());
 
         assertTrue(mStorage.hasRebootEscrow(PRIMARY_USER_ID));
@@ -756,4 +769,28 @@
         assertEquals(Integer.valueOf(RebootEscrowManager.ERROR_LOAD_ESCROW_KEY),
                 metricsErrorCodeCaptor.getValue());
     }
+
+    @Test
+    public void armServiceProviderMismatch_Failure() throws Exception {
+        RebootEscrowListener mockListener = mock(RebootEscrowListener.class);
+        mService.setRebootEscrowListener(mockListener);
+        mService.prepareRebootEscrow();
+
+        clearInvocations(mRebootEscrow);
+        mService.callToRebootEscrowIfNeeded(PRIMARY_USER_ID, FAKE_SP_VERSION, FAKE_AUTH_TOKEN);
+        verify(mockListener).onPreparedForReboot(eq(true));
+        assertTrue(mStorage.hasRebootEscrow(PRIMARY_USER_ID));
+        verify(mRebootEscrow, never()).storeKey(any());
+
+        assertNull(
+                mStorage.getString(RebootEscrowManager.REBOOT_ESCROW_ARMED_KEY, null, USER_SYSTEM));
+        // Change the provider to server based, expect the reboot to fail
+        when(mInjected.forceServerBased()).thenReturn(true);
+        assertEquals(ARM_REBOOT_ERROR_PROVIDER_MISMATCH, mService.armRebootEscrowIfNeeded());
+        assertNull(
+                mStorage.getString(RebootEscrowManager.REBOOT_ESCROW_ARMED_KEY, null, USER_SYSTEM));
+        // Verify that the escrow key & data have been cleared.
+        verify(mRebootEscrow).storeKey(eq(new byte[32]));
+        assertFalse(mStorage.hasRebootEscrow(PRIMARY_USER_ID));
+    }
 }
diff --git a/services/tests/servicestests/src/com/android/server/net/NetworkPolicyManagerServiceTest.java b/services/tests/servicestests/src/com/android/server/net/NetworkPolicyManagerServiceTest.java
index 100d3ea..e9e2486 100644
--- a/services/tests/servicestests/src/com/android/server/net/NetworkPolicyManagerServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/net/NetworkPolicyManagerServiceTest.java
@@ -18,6 +18,12 @@
 
 import static android.Manifest.permission.CONNECTIVITY_USE_RESTRICTED_NETWORKS;
 import static android.Manifest.permission.NETWORK_STACK;
+import static android.net.ConnectivityManager.BLOCKED_METERED_REASON_DATA_SAVER;
+import static android.net.ConnectivityManager.BLOCKED_METERED_REASON_USER_RESTRICTED;
+import static android.net.ConnectivityManager.BLOCKED_REASON_APP_STANDBY;
+import static android.net.ConnectivityManager.BLOCKED_REASON_BATTERY_SAVER;
+import static android.net.ConnectivityManager.BLOCKED_REASON_DOZE;
+import static android.net.ConnectivityManager.BLOCKED_REASON_NONE;
 import static android.net.ConnectivityManager.CONNECTIVITY_ACTION;
 import static android.net.ConnectivityManager.TYPE_MOBILE;
 import static android.net.ConnectivityManager.TYPE_WIFI;
@@ -29,16 +35,17 @@
 import static android.net.NetworkPolicy.LIMIT_DISABLED;
 import static android.net.NetworkPolicy.SNOOZE_NEVER;
 import static android.net.NetworkPolicy.WARNING_DISABLED;
+import static android.net.NetworkPolicyManager.ALLOWED_METERED_REASON_FOREGROUND;
+import static android.net.NetworkPolicyManager.ALLOWED_METERED_REASON_SYSTEM;
+import static android.net.NetworkPolicyManager.ALLOWED_REASON_FOREGROUND;
+import static android.net.NetworkPolicyManager.ALLOWED_REASON_NONE;
+import static android.net.NetworkPolicyManager.ALLOWED_REASON_SYSTEM;
 import static android.net.NetworkPolicyManager.FIREWALL_RULE_DEFAULT;
 import static android.net.NetworkPolicyManager.POLICY_ALLOW_METERED_BACKGROUND;
 import static android.net.NetworkPolicyManager.POLICY_NONE;
 import static android.net.NetworkPolicyManager.POLICY_REJECT_METERED_BACKGROUND;
-import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL;
-import static android.net.NetworkPolicyManager.RULE_ALLOW_METERED;
-import static android.net.NetworkPolicyManager.RULE_NONE;
-import static android.net.NetworkPolicyManager.RULE_REJECT_ALL;
-import static android.net.NetworkPolicyManager.RULE_REJECT_METERED;
-import static android.net.NetworkPolicyManager.RULE_TEMPORARY_ALLOW_METERED;
+import static android.net.NetworkPolicyManager.allowedReasonsToString;
+import static android.net.NetworkPolicyManager.blockedReasonsToString;
 import static android.net.NetworkPolicyManager.uidPoliciesToString;
 import static android.net.NetworkPolicyManager.uidRulesToString;
 import static android.net.NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK;
@@ -49,7 +56,6 @@
 import static android.net.NetworkTemplate.buildTemplateMobileAll;
 import static android.net.NetworkTemplate.buildTemplateWifi;
 import static android.net.TrafficStats.MB_IN_BYTES;
-import static android.os.Process.SYSTEM_UID;
 import static android.telephony.CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED;
 import static android.telephony.CarrierConfigManager.DATA_CYCLE_THRESHOLD_DISABLED;
 import static android.telephony.CarrierConfigManager.DATA_CYCLE_USE_PLATFORM_DEFAULT;
@@ -66,6 +72,7 @@
 import static com.android.server.net.NetworkPolicyManagerService.TYPE_LIMIT_SNOOZED;
 import static com.android.server.net.NetworkPolicyManagerService.TYPE_RAPID;
 import static com.android.server.net.NetworkPolicyManagerService.TYPE_WARNING;
+import static com.android.server.net.NetworkPolicyManagerService.UidBlockedState.getEffectiveBlockedReasons;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
@@ -144,6 +151,7 @@
 import android.util.Pair;
 import android.util.Range;
 import android.util.RecurrenceRule;
+import android.util.SparseArray;
 
 import androidx.test.InstrumentationRegistry;
 import androidx.test.filters.FlakyTest;
@@ -1844,68 +1852,6 @@
         reset(mStatsService);
     }
 
-    /**
-     * Exhaustively test checkUidNetworkingBlocked to output the expected results based on external
-     * conditions.
-     */
-    @Test
-    public void testCheckUidNetworkingBlocked() {
-        final ArrayList<Pair<Boolean, Integer>> expectedBlockedStates = new ArrayList<>();
-
-        // Metered network. Data saver on.
-        expectedBlockedStates.add(new Pair<>(true, RULE_NONE));
-        expectedBlockedStates.add(new Pair<>(false, RULE_ALLOW_METERED));
-        expectedBlockedStates.add(new Pair<>(false, RULE_TEMPORARY_ALLOW_METERED));
-        expectedBlockedStates.add(new Pair<>(true, RULE_REJECT_METERED));
-        expectedBlockedStates.add(new Pair<>(true, RULE_ALLOW_ALL));
-        expectedBlockedStates.add(new Pair<>(true, RULE_REJECT_ALL));
-        verifyNetworkBlockedState(
-                true /* metered */, true /* backgroundRestricted */, expectedBlockedStates);
-        expectedBlockedStates.clear();
-
-        // Metered network. Data saver off.
-        expectedBlockedStates.add(new Pair<>(false, RULE_NONE));
-        expectedBlockedStates.add(new Pair<>(false, RULE_ALLOW_METERED));
-        expectedBlockedStates.add(new Pair<>(false, RULE_TEMPORARY_ALLOW_METERED));
-        expectedBlockedStates.add(new Pair<>(true, RULE_REJECT_METERED));
-        expectedBlockedStates.add(new Pair<>(false, RULE_ALLOW_ALL));
-        expectedBlockedStates.add(new Pair<>(true, RULE_REJECT_ALL));
-        verifyNetworkBlockedState(
-                true /* metered */, false /* backgroundRestricted */, expectedBlockedStates);
-        expectedBlockedStates.clear();
-
-        // Non-metered network. Data saver on.
-        expectedBlockedStates.add(new Pair<>(false, RULE_NONE));
-        expectedBlockedStates.add(new Pair<>(false, RULE_ALLOW_METERED));
-        expectedBlockedStates.add(new Pair<>(false, RULE_TEMPORARY_ALLOW_METERED));
-        expectedBlockedStates.add(new Pair<>(false, RULE_REJECT_METERED));
-        expectedBlockedStates.add(new Pair<>(false, RULE_ALLOW_ALL));
-        expectedBlockedStates.add(new Pair<>(true, RULE_REJECT_ALL));
-        verifyNetworkBlockedState(
-                false /* metered */, true /* backgroundRestricted */, expectedBlockedStates);
-
-        // Non-metered network. Data saver off. The result is the same as previous case since
-        // the network is blocked only for RULE_REJECT_ALL regardless of data saver.
-        verifyNetworkBlockedState(
-                false /* metered */, false /* backgroundRestricted */, expectedBlockedStates);
-        expectedBlockedStates.clear();
-    }
-
-    private void verifyNetworkBlockedState(boolean metered, boolean backgroundRestricted,
-            ArrayList<Pair<Boolean, Integer>> expectedBlockedStateForRules) {
-
-        for (Pair<Boolean, Integer> pair : expectedBlockedStateForRules) {
-            final boolean expectedResult = pair.first;
-            final int rule = pair.second;
-            assertEquals(formatBlockedStateError(UID_A, rule, metered, backgroundRestricted),
-                    expectedResult, mService.checkUidNetworkingBlocked(UID_A, rule,
-                            metered, backgroundRestricted));
-            assertFalse(formatBlockedStateError(SYSTEM_UID, rule, metered, backgroundRestricted),
-                    mService.checkUidNetworkingBlocked(SYSTEM_UID, rule, metered,
-                            backgroundRestricted));
-        }
-    }
-
     private void enableRestrictedMode(boolean enable) throws Exception {
         mService.mRestrictedNetworkingMode = enable;
         mService.updateRestrictedModeAllowlistUL();
@@ -1966,6 +1912,65 @@
         assertFalse(mService.isUidNetworkingBlocked(UID_E, false));
     }
 
+    @Test
+    public void testUpdateEffectiveBlockedReasons() {
+        final SparseArray<Pair<Integer, Integer>> effectiveBlockedReasons = new SparseArray<>();
+        effectiveBlockedReasons.put(BLOCKED_REASON_NONE,
+                Pair.create(BLOCKED_REASON_NONE, ALLOWED_REASON_NONE));
+
+        effectiveBlockedReasons.put(BLOCKED_REASON_NONE,
+                Pair.create(BLOCKED_REASON_BATTERY_SAVER, ALLOWED_REASON_SYSTEM));
+        effectiveBlockedReasons.put(BLOCKED_REASON_NONE,
+                Pair.create(BLOCKED_REASON_BATTERY_SAVER | BLOCKED_REASON_DOZE,
+                        ALLOWED_REASON_SYSTEM));
+        effectiveBlockedReasons.put(BLOCKED_REASON_NONE,
+                Pair.create(BLOCKED_METERED_REASON_DATA_SAVER,
+                        ALLOWED_METERED_REASON_SYSTEM));
+        effectiveBlockedReasons.put(BLOCKED_REASON_NONE,
+                Pair.create(BLOCKED_METERED_REASON_DATA_SAVER
+                                | BLOCKED_METERED_REASON_USER_RESTRICTED,
+                        ALLOWED_METERED_REASON_SYSTEM));
+
+        effectiveBlockedReasons.put(BLOCKED_METERED_REASON_DATA_SAVER,
+                Pair.create(BLOCKED_REASON_BATTERY_SAVER | BLOCKED_METERED_REASON_DATA_SAVER,
+                        ALLOWED_REASON_SYSTEM));
+        effectiveBlockedReasons.put(BLOCKED_REASON_APP_STANDBY,
+                Pair.create(BLOCKED_REASON_APP_STANDBY | BLOCKED_METERED_REASON_USER_RESTRICTED,
+                        ALLOWED_METERED_REASON_SYSTEM));
+
+        effectiveBlockedReasons.put(BLOCKED_REASON_NONE,
+                Pair.create(BLOCKED_REASON_BATTERY_SAVER, ALLOWED_REASON_FOREGROUND));
+        effectiveBlockedReasons.put(BLOCKED_REASON_NONE,
+                Pair.create(BLOCKED_REASON_BATTERY_SAVER | BLOCKED_REASON_DOZE,
+                        ALLOWED_REASON_FOREGROUND));
+        effectiveBlockedReasons.put(BLOCKED_REASON_NONE,
+                Pair.create(BLOCKED_METERED_REASON_DATA_SAVER, ALLOWED_METERED_REASON_FOREGROUND));
+        effectiveBlockedReasons.put(BLOCKED_REASON_NONE,
+                Pair.create(BLOCKED_METERED_REASON_DATA_SAVER
+                                | BLOCKED_METERED_REASON_USER_RESTRICTED,
+                        ALLOWED_METERED_REASON_FOREGROUND));
+        effectiveBlockedReasons.put(BLOCKED_METERED_REASON_DATA_SAVER,
+                Pair.create(BLOCKED_REASON_BATTERY_SAVER | BLOCKED_METERED_REASON_DATA_SAVER,
+                        ALLOWED_REASON_FOREGROUND));
+        effectiveBlockedReasons.put(BLOCKED_REASON_BATTERY_SAVER,
+                Pair.create(BLOCKED_REASON_BATTERY_SAVER
+                                | BLOCKED_METERED_REASON_USER_RESTRICTED,
+                        ALLOWED_METERED_REASON_FOREGROUND));
+        // TODO: test more combinations of blocked reasons.
+
+        for (int i = 0; i < effectiveBlockedReasons.size(); ++i) {
+            final int expectedEffectiveBlockedReasons = effectiveBlockedReasons.keyAt(i);
+            final int blockedReasons = effectiveBlockedReasons.valueAt(i).first;
+            final int allowedReasons = effectiveBlockedReasons.valueAt(i).second;
+            final String errorMsg = "Expected="
+                    + blockedReasonsToString(expectedEffectiveBlockedReasons)
+                    + "; blockedReasons=" + blockedReasonsToString(blockedReasons)
+                    + ", allowedReasons=" + allowedReasonsToString(allowedReasons);
+            assertEquals(errorMsg, expectedEffectiveBlockedReasons,
+                    getEffectiveBlockedReasons(blockedReasons, allowedReasons));
+        }
+    }
+
     private String formatBlockedStateError(int uid, int rule, boolean metered,
             boolean backgroundRestricted) {
         return String.format(
diff --git a/services/tests/servicestests/src/com/android/server/recoverysystem/RecoverySystemServiceTest.java b/services/tests/servicestests/src/com/android/server/recoverysystem/RecoverySystemServiceTest.java
index 7903a90..b64810b 100644
--- a/services/tests/servicestests/src/com/android/server/recoverysystem/RecoverySystemServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/recoverysystem/RecoverySystemServiceTest.java
@@ -16,8 +16,16 @@
 
 package com.android.server.recoverysystem;
 
+import static android.os.RecoverySystem.RESUME_ON_REBOOT_REBOOT_ERROR_INVALID_PACKAGE_NAME;
+import static android.os.RecoverySystem.RESUME_ON_REBOOT_REBOOT_ERROR_LSKF_NOT_CAPTURED;
+import static android.os.RecoverySystem.RESUME_ON_REBOOT_REBOOT_ERROR_PROVIDER_PREPARATION_FAILURE;
+import static android.os.RecoverySystem.RESUME_ON_REBOOT_REBOOT_ERROR_SLOT_MISMATCH;
+
 import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
 import static org.mockito.AdditionalMatchers.not;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyBoolean;
@@ -26,6 +34,7 @@
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
@@ -86,7 +95,8 @@
         mUncryptUpdateFileWriter = mock(FileWriter.class);
         mLockSettingsInternal = mock(LockSettingsInternal.class);
 
-        when(mLockSettingsInternal.armRebootEscrow()).thenReturn(true);
+        doReturn(LockSettingsInternal.ARM_REBOOT_ERROR_NONE).when(mLockSettingsInternal)
+                .armRebootEscrow();
 
         Looper looper = InstrumentationRegistry.getContext().getMainLooper();
         mIPowerManager = mock(IPowerManager.class);
@@ -274,8 +284,7 @@
         verify(intentSender).sendIntent(any(), anyInt(), any(), any(), any());
 
         assertThat(mRecoverySystemService.requestLskf(FAKE_OTA_PACKAGE_NAME, null), is(true));
-        assertThat(mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, "foobar", true),
-                is(true));
+        mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, "foobar", true);
         verify(mIPowerManager).reboot(anyBoolean(), eq("foobar"), anyBoolean());
     }
 
@@ -373,8 +382,7 @@
                 anyInt())).thenReturn(3);
         when(mSharedPreferences.getLong(eq(RecoverySystemService.LSKF_CAPTURED_TIMESTAMP_PREF),
                 anyLong())).thenReturn(40_000L);
-        assertThat(mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, "ab-update", true),
-                is(true));
+        mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, "ab-update", true);
         verify(mIPowerManager).reboot(anyBoolean(), eq("ab-update"), anyBoolean());
         verify(mMetricsReporter).reportRebootEscrowRebootMetrics(eq(0), eq(1000),
                 eq(1) /* client count */, eq(2) /* request count */, eq(true) /* slot switch */,
@@ -386,19 +394,20 @@
     public void rebootWithLskf_slotMismatch_Failure() throws Exception {
         assertThat(mRecoverySystemService.requestLskf(FAKE_OTA_PACKAGE_NAME, null), is(true));
         mRecoverySystemService.onPreparedForReboot(true);
-        assertThat(mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, "ab-update", false),
-                is(false));
+        assertEquals(RESUME_ON_REBOOT_REBOOT_ERROR_SLOT_MISMATCH,
+                mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, "ab-update", false));
     }
 
     @Test
     public void rebootWithLskf_withoutPrepare_Failure() throws Exception {
-        assertThat(mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, null, true),
-                is(false));
+        assertEquals(RESUME_ON_REBOOT_REBOOT_ERROR_LSKF_NOT_CAPTURED,
+                mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, null, true));
     }
 
     @Test
     public void rebootWithLskf_withNullCallerId_Failure() throws Exception {
-        assertThat(mRecoverySystemService.rebootWithLskf(null, null, true), is(false));
+        assertEquals(RESUME_ON_REBOOT_REBOOT_ERROR_INVALID_PACKAGE_NAME,
+                mRecoverySystemService.rebootWithLskf(null, null, true));
         verifyNoMoreInteractions(mIPowerManager);
     }
 
@@ -410,8 +419,7 @@
 
         // Client B's clear won't affect client A's preparation.
         assertThat(mRecoverySystemService.clearLskf(FAKE_OTHER_PACKAGE_NAME), is(true));
-        assertThat(mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, "ab-update", true),
-                is(true));
+        mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, "ab-update", true);
         verify(mIPowerManager).reboot(anyBoolean(), eq("ab-update"), anyBoolean());
     }
 
@@ -428,8 +436,7 @@
         when(mSharedPreferences.getLong(eq(RecoverySystemService.LSKF_CAPTURED_TIMESTAMP_PREF),
                 anyLong())).thenReturn(60_000L);
 
-        assertThat(mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, "ab-update", true),
-                is(true));
+        mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, "ab-update", true);
         verify(mIPowerManager).reboot(anyBoolean(), eq("ab-update"), anyBoolean());
         verify(mMetricsReporter).reportRebootEscrowRebootMetrics(eq(0), eq(1000),
                 eq(2) /* client count */, eq(2) /* request count */, eq(true) /* slot switch */,
@@ -450,17 +457,15 @@
                 anyLong())).thenReturn(60_000L);
 
         assertThat(mRecoverySystemService.clearLskf(FAKE_OTA_PACKAGE_NAME), is(true));
-        assertThat(mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, null, true),
-                is(false));
+        assertEquals(RESUME_ON_REBOOT_REBOOT_ERROR_LSKF_NOT_CAPTURED,
+                mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, null, true));
         verifyNoMoreInteractions(mIPowerManager);
         verify(mMetricsReporter).reportRebootEscrowRebootMetrics(not(eq(0)), eq(1000),
                 eq(1) /* client count */, anyInt() /* request count */, eq(true) /* slot switch */,
                 anyBoolean(), eq(40), eq(1)/* lskf capture count */);
 
         assertThat(mRecoverySystemService.requestLskf(FAKE_OTHER_PACKAGE_NAME, null), is(true));
-        assertThat(
-                mRecoverySystemService.rebootWithLskf(FAKE_OTHER_PACKAGE_NAME, "ab-update", true),
-                is(true));
+        mRecoverySystemService.rebootWithLskf(FAKE_OTHER_PACKAGE_NAME, "ab-update", true);
         verify(mIPowerManager).reboot(anyBoolean(), eq("ab-update"), anyBoolean());
 
         verify(mMetricsReporter).reportRebootEscrowRebootMetrics((eq(0)), eq(2000),
@@ -476,18 +481,40 @@
 
         // Client A clears
         assertThat(mRecoverySystemService.clearLskf(FAKE_OTA_PACKAGE_NAME), is(true));
-        assertThat(mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, null, true),
-                is(false));
+        assertEquals(RESUME_ON_REBOOT_REBOOT_ERROR_LSKF_NOT_CAPTURED,
+                mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, null, true));
         verifyNoMoreInteractions(mIPowerManager);
 
         // Client B clears
         assertThat(mRecoverySystemService.clearLskf(FAKE_OTHER_PACKAGE_NAME), is(true));
         verify(mLockSettingsInternal).clearRebootEscrow();
-        assertThat(
-                mRecoverySystemService.rebootWithLskf(FAKE_OTHER_PACKAGE_NAME, "ab-update", true),
-                is(false));
+        assertEquals(RESUME_ON_REBOOT_REBOOT_ERROR_LSKF_NOT_CAPTURED,
+                mRecoverySystemService.rebootWithLskf(FAKE_OTHER_PACKAGE_NAME, "ab-update", true));
         verifyNoMoreInteractions(mIPowerManager);
     }
 
     // TODO(xunchang) add more multi client tests
+
+    @Test
+    public void rebootWithLskf_armEscrowDataFatalError_Failure() throws Exception {
+        doReturn(LockSettingsInternal.ARM_REBOOT_ERROR_PROVIDER_MISMATCH)
+                .when(mLockSettingsInternal).armRebootEscrow();
+
+        assertTrue(mRecoverySystemService.requestLskf(FAKE_OTA_PACKAGE_NAME, null));
+        mRecoverySystemService.onPreparedForReboot(true);
+        assertTrue(mRecoverySystemService.isLskfCaptured(FAKE_OTA_PACKAGE_NAME));
+
+        when(mSharedPreferences.getInt(eq(FAKE_OTA_PACKAGE_NAME
+                + RecoverySystemService.REQUEST_LSKF_COUNT_PREF_SUFFIX), anyInt())).thenReturn(1);
+        when(mSharedPreferences.getInt(eq(RecoverySystemService.LSKF_CAPTURED_COUNT_PREF),
+                anyInt())).thenReturn(1);
+        assertEquals(RESUME_ON_REBOOT_REBOOT_ERROR_PROVIDER_PREPARATION_FAILURE,
+                mRecoverySystemService.rebootWithLskf(FAKE_OTA_PACKAGE_NAME, "ab-update", true));
+        // Verify that the RoR preparation state has been cleared.
+        assertFalse(mRecoverySystemService.isLskfCaptured(FAKE_OTA_PACKAGE_NAME));
+        verify(mMetricsReporter).reportRebootEscrowRebootMetrics(eq(5004 /* provider mismatch */),
+                eq(1000), eq(1) /* client count */, eq(1) /* request count */,
+                eq(true) /* slot switch */, anyBoolean(), anyInt(),
+                eq(1) /* lskf capture count */);
+    }
 }
diff --git a/services/tests/servicestests/src/com/android/server/uwb/OWNERS b/services/tests/servicestests/src/com/android/server/uwb/OWNERS
new file mode 100644
index 0000000..c31a2f1
--- /dev/null
+++ b/services/tests/servicestests/src/com/android/server/uwb/OWNERS
@@ -0,0 +1 @@
+include platform/frameworks/base:/core/java/android/uwb/OWNERS
diff --git a/services/uwb/OWNERS b/services/uwb/OWNERS
new file mode 100644
index 0000000..c31a2f1
--- /dev/null
+++ b/services/uwb/OWNERS
@@ -0,0 +1 @@
+include platform/frameworks/base:/core/java/android/uwb/OWNERS
diff --git a/telephony/common/com/android/internal/telephony/TelephonyPermissions.java b/telephony/common/com/android/internal/telephony/TelephonyPermissions.java
index 38fa907..3c3df51 100644
--- a/telephony/common/com/android/internal/telephony/TelephonyPermissions.java
+++ b/telephony/common/com/android/internal/telephony/TelephonyPermissions.java
@@ -525,7 +525,7 @@
      *
      * @throws SecurityException if the caller does not have the required permission/privileges
      */
-    public static void enforeceCallingOrSelfReadPhoneStatePermissionOrCarrierPrivilege(
+    public static void enforceCallingOrSelfReadPhoneStatePermissionOrCarrierPrivilege(
             Context context, int subId, String message) {
         if (context.checkCallingOrSelfPermission(android.Manifest.permission.READ_PHONE_STATE)
                 == PERMISSION_GRANTED) {
@@ -545,7 +545,7 @@
      *
      * @throws SecurityException if the caller does not have the required permission/privileges
      */
-    public static void enforeceCallingOrSelfReadPrivilegedPhoneStatePermissionOrCarrierPrivilege(
+    public static void enforceCallingOrSelfReadPrivilegedPhoneStatePermissionOrCarrierPrivilege(
             Context context, int subId, String message) {
         if (context.checkCallingOrSelfPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
                 == PERMISSION_GRANTED) {
@@ -567,7 +567,7 @@
      *
      * @throws SecurityException if the caller does not have the required permission/privileges
      */
-    public static void enforeceCallingOrSelfReadPrecisePhoneStatePermissionOrCarrierPrivilege(
+    public static void enforceCallingOrSelfReadPrecisePhoneStatePermissionOrCarrierPrivilege(
             Context context, int subId, String message) {
         if (context.checkCallingOrSelfPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
                 == PERMISSION_GRANTED) {
diff --git a/telephony/java/android/telephony/AccessNetworkConstants.java b/telephony/java/android/telephony/AccessNetworkConstants.java
index f6d18fc..96e715e 100644
--- a/telephony/java/android/telephony/AccessNetworkConstants.java
+++ b/telephony/java/android/telephony/AccessNetworkConstants.java
@@ -637,18 +637,18 @@
             this.band = band;
             this.downlinkLowKhz = downlinkLowKhz;
             this.downlinkOffset = downlinkOffset;
+            this.downlinkRange = downlinkRange;
             this.uplinkLowKhz = uplinkLowKhz;
             this.uplinkOffset = uplinkOffset;
-            this.downlinkRange = downlinkRange;
             this.uplinkRange = uplinkRange;
         }
 
         int band;
         int downlinkLowKhz;
         int downlinkOffset;
+        int downlinkRange;
         int uplinkLowKhz;
         int uplinkOffset;
-        int downlinkRange;
         int uplinkRange;
     }
 
diff --git a/telephony/java/android/telephony/AccessNetworkUtils.java b/telephony/java/android/telephony/AccessNetworkUtils.java
index f29f3bd..6b82045 100644
--- a/telephony/java/android/telephony/AccessNetworkUtils.java
+++ b/telephony/java/android/telephony/AccessNetworkUtils.java
@@ -598,7 +598,8 @@
                             : earfcnFrequency.downlinkOffset;
                     break;
                 } else {
-                    Log.e(TAG, "Band and the range of EARFCN are not consistent.");
+                    Rlog.w(TAG,"Band and the range of EARFCN are not consistent: band = " + band
+                            + " ,earfcn = " + earfcn + " ,isUplink = " + isUplink);
                     return INVALID_FREQUENCY;
                 }
             }
@@ -617,7 +618,7 @@
     }
 
     private static boolean isInEarfcnRange(int earfcn, EutranBandArfcnFrequency earfcnFrequency,
-                                           boolean isUplink) {
+            boolean isUplink) {
         if (isUplink) {
             return earfcn >= earfcnFrequency.uplinkOffset && earfcn <= earfcnFrequency.uplinkRange;
         } else {
@@ -640,7 +641,8 @@
                             : uarfcnFrequency.downlinkOffset;
                     break;
                 } else {
-                    Log.e(TAG, "Band and the range of UARFCN are not consistent.");
+                    Rlog.w(TAG,"Band and the range of UARFCN are not consistent: band = " + band
+                            + " ,uarfcn = " + uarfcn + " ,isUplink = " + isUplink);
                     return INVALID_FREQUENCY;
                 }
             }
@@ -716,7 +718,8 @@
                             arfcnOffset);
                     break;
                 } else {
-                    Log.e(TAG, "Band and the range of ARFCN are not consistent.");
+                    Rlog.w(TAG,"Band and the range of ARFCN are not consistent: band = " + band
+                            + " ,arfcn = " + arfcn + " ,isUplink = " + isUplink);
                     return INVALID_FREQUENCY;
                 }
             }
@@ -733,7 +736,7 @@
      * Downlink actual frequency(kHz) = Uplink actual frequency + 10
      */
     private static int convertArfcnToFrequency(int arfcn, int uplinkFrequencyFirstKhz,
-                                               int arfcnOffset) {
+            int arfcnOffset) {
         return uplinkFrequencyFirstKhz + 200 * (arfcn - arfcnOffset);
     }
 
diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index f027cd1..210e4a5 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -3222,6 +3222,14 @@
     public static final String KEY_USE_CALLER_ID_USSD_BOOL = "use_caller_id_ussd_bool";
 
     /**
+     * Call waiting uses USSD command without SS command.
+     * When {@code true}, the call waiting query/set by ussd command.
+     * When {@code false}, doesn't use USSD to query/set call waiting.
+     * @hide
+     */
+    public static final String KEY_USE_CALL_WAITING_USSD_BOOL = "use_call_waiting_ussd_bool";
+
+    /**
      * Specifies the service class for call waiting service.
      * Default value is
      * {@link com.android.internal.telephony.CommandsInterface#SERVICE_CLASS_VOICE}.
@@ -4035,7 +4043,6 @@
          * it will override the framework default.
          * @hide
          */
-        @SystemApi
         public static final String KEY_PUBLISH_SERVICE_DESC_FEATURE_TAG_MAP_OVERRIDE_STRING_ARRAY =
                 KEY_PREFIX + "publish_service_desc_feature_tag_map_override_string_array";
 
@@ -4820,6 +4827,7 @@
         sDefaults.putBoolean(KEY_SUPPORT_EMERGENCY_DIALER_SHORTCUT_BOOL, true);
         sDefaults.putBoolean(KEY_USE_CALL_FORWARDING_USSD_BOOL, false);
         sDefaults.putBoolean(KEY_USE_CALLER_ID_USSD_BOOL, false);
+        sDefaults.putBoolean(KEY_USE_CALL_WAITING_USSD_BOOL, false);
         sDefaults.putInt(KEY_CALL_WAITING_SERVICE_CLASS_INT, 1 /* SERVICE_CLASS_VOICE */);
         sDefaults.putString(KEY_5G_ICON_CONFIGURATION_STRING,
                 "connected_mmwave:5G,connected:5G,not_restricted_rrc_idle:5G,"
diff --git a/telephony/java/android/telephony/SubscriptionManager.java b/telephony/java/android/telephony/SubscriptionManager.java
index c9f658c..2908e94 100644
--- a/telephony/java/android/telephony/SubscriptionManager.java
+++ b/telephony/java/android/telephony/SubscriptionManager.java
@@ -2465,7 +2465,10 @@
         if (subInfo != null) {
             overrideConfig.mcc = subInfo.getMcc();
             overrideConfig.mnc = subInfo.getMnc();
-            if (overrideConfig.mnc == 0) overrideConfig.mnc = Configuration.MNC_ZERO;
+            if (overrideConfig.mnc == 0) {
+                overrideConfig.mnc = Configuration.MNC_ZERO;
+                cacheKey = null;
+            }
         }
 
         if (useRootLocale) {
diff --git a/telephony/java/android/telephony/data/DataCallResponse.java b/telephony/java/android/telephony/data/DataCallResponse.java
index a5e5ab01..ad57b91 100644
--- a/telephony/java/android/telephony/data/DataCallResponse.java
+++ b/telephony/java/android/telephony/data/DataCallResponse.java
@@ -70,6 +70,7 @@
 
     /** {@hide} */
     @IntDef(prefix = "HANDOVER_FAILURE_MODE_", value = {
+            HANDOVER_FAILURE_MODE_UNKNOWN,
             HANDOVER_FAILURE_MODE_LEGACY,
             HANDOVER_FAILURE_MODE_DO_FALLBACK,
             HANDOVER_FAILURE_MODE_NO_FALLBACK_RETRY_HANDOVER,
diff --git a/telephony/java/android/telephony/ims/DelegateRegistrationState.java b/telephony/java/android/telephony/ims/DelegateRegistrationState.java
index fd206c1..c00c741 100644
--- a/telephony/java/android/telephony/ims/DelegateRegistrationState.java
+++ b/telephony/java/android/telephony/ims/DelegateRegistrationState.java
@@ -63,7 +63,7 @@
      * This feature tag is being deregistered because the PDN that the IMS registration is on is
      *changing.
      * All open SIP dialogs need to be closed before the PDN change can proceed using
-     * {@link SipDelegateConnection#closeDialog(String)}.
+     * {@link SipDelegateConnection#cleanupSession(String)}.
      */
     public static final int DEREGISTERING_REASON_PDN_CHANGE = 3;
 
@@ -74,7 +74,7 @@
      * a user triggered hange, such as data being enabled/disabled.
      * <p>
      * All open SIP dialogs associated with the new deprovisioned feature tag need to be closed
-     * using {@link SipDelegateConnection#closeDialog(String)} before the IMS registration
+     * using {@link SipDelegateConnection#cleanupSession(String)} before the IMS registration
      * modification can proceed.
      */
     public static final int DEREGISTERING_REASON_PROVISIONING_CHANGE = 4;
@@ -84,7 +84,7 @@
      * needs to change its supported feature set.
      * <p>
      * All open SIP Dialogs associated with this feature tag must be  closed
-     * using {@link SipDelegateConnection#closeDialog(String)} before this operation can proceed.
+     * using {@link SipDelegateConnection#cleanupSession(String)} before this operation can proceed.
      */
     public static final int DEREGISTERING_REASON_FEATURE_TAGS_CHANGING = 5;
 
@@ -93,7 +93,7 @@
      * destroyed.
      * <p>
      * All open SIP Dialogs associated with this feature tag must be closed
-     * using {@link SipDelegateConnection#closeDialog(String)} before this operation can proceed.
+     * using {@link SipDelegateConnection#cleanupSession(String)} before this operation can proceed.
      */
     public static final int DEREGISTERING_REASON_DESTROY_PENDING = 6;
 
diff --git a/telephony/java/android/telephony/ims/RcsConfig.java b/telephony/java/android/telephony/ims/RcsConfig.java
index 07e95cc..8a31211 100644
--- a/telephony/java/android/telephony/ims/RcsConfig.java
+++ b/telephony/java/android/telephony/ims/RcsConfig.java
@@ -48,6 +48,9 @@
     private static final String LOG_TAG = "RcsConfig";
     private static final boolean DBG = Build.IS_ENG;
 
+    // Tag for Rcs Volte single registration defined in RCC.07 A.1.6.2
+    private static final String TAG_SINGLE_REGISTRATION = "rcsVolteSingleRegistration";
+
     private final HashMap<String, String> mValues = new HashMap<>();
 
     private RcsConfig(HashMap<String, String> values) {
@@ -145,6 +148,14 @@
         return mValues.containsKey(tag);
     }
 
+    /**
+     * Check whether Rcs Volte single registration is supported by the config.
+     */
+    public boolean isRcsVolteSingleRegistrationSupported() {
+        return getBoolean(TAG_SINGLE_REGISTRATION, false)
+                || getInteger(TAG_SINGLE_REGISTRATION, 0) != 0;
+    }
+
     @Override
     public String toString() {
         final StringBuilder sb = new StringBuilder();
diff --git a/telephony/java/android/telephony/ims/RcsContactUceCapability.java b/telephony/java/android/telephony/ims/RcsContactUceCapability.java
index a133ead..acfa133 100644
--- a/telephony/java/android/telephony/ims/RcsContactUceCapability.java
+++ b/telephony/java/android/telephony/ims/RcsContactUceCapability.java
@@ -282,20 +282,6 @@
      * <p>
      * Note: this is only populated if {@link #getCapabilityMechanism} is
      * {@link RcsContactUceCapability#CAPABILITY_MECHANISM_OPTIONS}
-     * @hide
-     */
-    public @NonNull List<String> getOptionsFeatureTags() {
-        if (mCapabilityMechanism != CAPABILITY_MECHANISM_OPTIONS) {
-            return Collections.emptyList();
-        }
-        return Collections.unmodifiableList(new ArrayList<>(mFeatureTags));
-    }
-
-    /**
-     * @return The feature tags present in the OPTIONS response from the network.
-     * <p>
-     * Note: this is only populated if {@link #getCapabilityMechanism} is
-     * {@link RcsContactUceCapability#CAPABILITY_MECHANISM_OPTIONS}
      */
     public @NonNull Set<String> getFeatureTags() {
         if (mCapabilityMechanism != CAPABILITY_MECHANISM_OPTIONS) {
diff --git a/telephony/java/android/telephony/ims/SipDelegateConnection.java b/telephony/java/android/telephony/ims/SipDelegateConnection.java
index 04a772c..d7a19bc 100644
--- a/telephony/java/android/telephony/ims/SipDelegateConnection.java
+++ b/telephony/java/android/telephony/ims/SipDelegateConnection.java
@@ -74,8 +74,30 @@
      * closed.
      * @param callId The call-ID header value associated with the ongoing SIP Dialog that is
      *         closing.
+     * @deprecated closeDialog does not capture INVITE forking. Use {@link #cleanupSession} instead.
      */
-    void closeDialog(@NonNull String callId);
+    @Deprecated
+    default void closeDialog(@NonNull String callId) {
+        cleanupSession(callId);
+    }
+
+    /**
+     * The SIP session associated with the provided Call-ID is being closed and routing resources
+     * associated with the session are free to be released. Each SIP session may contain multiple
+     * dialogs due to SIP INVITE forking, so this method must be called after all SIP dialogs
+     * associated with the session has closed.
+     * <p>
+     * Calling this method is also mandatory for situations where the framework IMS stack is waiting
+     * for pending SIP sessions to be closed before it can perform a handover or apply a
+     * provisioning change. See {@link DelegateRegistrationState} for more information about
+     * the scenarios where this can occur.
+     * <p>
+     * This method will need to be called for each SIP session managed by this application when it
+     * is closed.
+     * @param callId The call-ID header value associated with the ongoing SIP Dialog that is
+     *         closing.
+     */
+    default void cleanupSession(@NonNull String callId) { }
 
     /**
      * Notify the SIP delegate that the SIP message has been received from
diff --git a/telephony/java/android/telephony/ims/SipDelegateImsConfiguration.java b/telephony/java/android/telephony/ims/SipDelegateImsConfiguration.java
index 8762b6a..0d63f7b 100644
--- a/telephony/java/android/telephony/ims/SipDelegateImsConfiguration.java
+++ b/telephony/java/android/telephony/ims/SipDelegateImsConfiguration.java
@@ -501,6 +501,10 @@
      * {@link SipMessage} was using the latest configuration during creation and not a stale
      * configuration due to race conditions between the configuration being updated and the RCS
      * application not receiving the updated configuration before generating a new message.
+     * <p>
+     * The version number should be a positive number that starts at 0 and increments sequentially
+     * as new {@link SipDelegateImsConfiguration} instances are created to update the IMS
+     * configuration state.
      *
      * @return the version number associated with this {@link SipDelegateImsConfiguration}.
      */
diff --git a/telephony/java/android/telephony/ims/SipMessage.java b/telephony/java/android/telephony/ims/SipMessage.java
index ad6d73c..391372a 100644
--- a/telephony/java/android/telephony/ims/SipMessage.java
+++ b/telephony/java/android/telephony/ims/SipMessage.java
@@ -24,6 +24,7 @@
 import android.os.Build;
 import android.os.Parcel;
 import android.os.Parcelable;
+import android.text.TextUtils;
 
 import com.android.internal.telephony.SipMessageParsingUtils;
 
@@ -60,14 +61,19 @@
      */
     public SipMessage(@NonNull String startLine, @NonNull String headerSection,
             @NonNull byte[] content) {
-        if (startLine == null || headerSection == null || content == null) {
-            throw new IllegalArgumentException("One or more null parameters entered");
-        }
+        Objects.requireNonNull(startLine, "Required parameter is null: startLine");
+        Objects.requireNonNull(headerSection, "Required parameter is null: headerSection");
+        Objects.requireNonNull(content, "Required parameter is null: content");
+
         mStartLine = startLine;
         mHeaderSection = headerSection;
         mContent = content;
 
         mViaBranchParam = SipMessageParsingUtils.getTransactionId(mHeaderSection);
+        if (TextUtils.isEmpty(mViaBranchParam)) {
+            throw new IllegalArgumentException("header section MUST contain a branch parameter "
+                    + "inside of the Via header.");
+        }
         mCallIdParam = SipMessageParsingUtils.getCallId(mHeaderSection);
     }
 
@@ -107,11 +113,9 @@
 
     /**
      * @return the branch parameter enclosed in the Via header key's value. See RFC 3261 section
-     * 20.42 for more information on the Via header. If {@code null}, then there was either no
-     * Via parameter found in this SIP message's headers or no branch parameter found in the
-     * Via header.
+     * 20.42 for more information on the Via header.
      */
-    public @Nullable String getViaBranchParameter() {
+    public @NonNull String getViaBranchParameter() {
         return mViaBranchParam;
     }
 
@@ -199,9 +203,16 @@
     }
 
     /**
-     * @return the UTF-8 encoded SIP message.
+     * According RFC-3261 section 7, SIP is a text protocol and uses the UTF-8 charset. Its format
+     * consists of a start-line, one or more header fields, an empty line indicating the end of the
+     * header fields, and an optional message-body.
+     *
+     * <p>
+     * Returns a byte array with UTF-8 format representation of the encoded SipMessage.
+     *
+     * @return byte array with UTF-8 format representation of the encoded SipMessage.
      */
-    public @NonNull byte[] getEncodedMessage() {
+    public @NonNull byte[] toEncodedMessage() {
         byte[] header = new StringBuilder()
                 .append(mStartLine)
                 .append(mHeaderSection)
diff --git a/telephony/java/android/telephony/ims/aidl/ISipDelegate.aidl b/telephony/java/android/telephony/ims/aidl/ISipDelegate.aidl
index ad75be4..ff1a8f0 100644
--- a/telephony/java/android/telephony/ims/aidl/ISipDelegate.aidl
+++ b/telephony/java/android/telephony/ims/aidl/ISipDelegate.aidl
@@ -26,5 +26,5 @@
     void sendMessage(in SipMessage sipMessage, long configVersion);
     void notifyMessageReceived(in String viaTransactionId);
     void notifyMessageReceiveError(in String viaTransactionId, int reason);
-    void closeDialog(in String callId);
+    void cleanupSession(in String callId);
 }
diff --git a/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java b/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java
index 739946b..6a98d80 100644
--- a/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java
+++ b/telephony/java/android/telephony/ims/aidl/SipDelegateAidlWrapper.java
@@ -28,8 +28,6 @@
 import android.telephony.ims.SipDelegateManager;
 import android.telephony.ims.SipMessage;
 import android.telephony.ims.stub.SipDelegate;
-import android.text.TextUtils;
-import android.util.Log;
 
 import java.util.ArrayList;
 import java.util.Set;
@@ -81,11 +79,11 @@
         }
 
         @Override
-        public void closeDialog(String callId)  {
+        public void cleanupSession(String callId)  {
             SipDelegate d = mDelegate;
             final long token = Binder.clearCallingIdentity();
             try {
-                mExecutor.execute(() -> d.closeDialog(callId));
+                mExecutor.execute(() -> d.cleanupSession(callId));
             } finally {
                 Binder.restoreCallingIdentity(token);
             }
@@ -187,11 +185,6 @@
 
     private void notifyLocalMessageFailedToBeReceived(SipMessage m, int reason) {
         String transactionId = m.getViaBranchParameter();
-        if (TextUtils.isEmpty(transactionId)) {
-            Log.w(LOG_TAG, "failure to parse SipMessage.");
-            throw new IllegalArgumentException("Malformed SipMessage, can not determine "
-                    + "transaction ID.");
-        }
         SipDelegate d = mDelegate;
         if (d != null) {
             mExecutor.execute(() -> d.notifyMessageReceiveError(transactionId, reason));
diff --git a/telephony/java/android/telephony/ims/aidl/SipDelegateConnectionAidlWrapper.java b/telephony/java/android/telephony/ims/aidl/SipDelegateConnectionAidlWrapper.java
index 3cd2726..0abb495 100644
--- a/telephony/java/android/telephony/ims/aidl/SipDelegateConnectionAidlWrapper.java
+++ b/telephony/java/android/telephony/ims/aidl/SipDelegateConnectionAidlWrapper.java
@@ -28,7 +28,6 @@
 import android.telephony.ims.stub.DelegateConnectionMessageCallback;
 import android.telephony.ims.stub.DelegateConnectionStateCallback;
 import android.telephony.ims.stub.SipDelegate;
-import android.text.TextUtils;
 import android.util.ArraySet;
 import android.util.Log;
 
@@ -201,13 +200,13 @@
     }
 
     @Override
-    public void closeDialog(String callId) {
+    public void cleanupSession(String callId) {
         try {
             ISipDelegate conn = getSipDelegateBinder();
             if (conn == null) {
                 return;
             }
-            conn.closeDialog(callId);
+            conn.cleanupSession(callId);
         } catch (RemoteException e) {
             // Nothing to do here, app will eventually get remote death callback.
         }
@@ -267,12 +266,6 @@
 
     private void notifyLocalMessageFailedToSend(SipMessage m, int reason) {
         String transactionId = m.getViaBranchParameter();
-        if (TextUtils.isEmpty(transactionId)) {
-            Log.w(LOG_TAG, "sendMessage detected a malformed SipMessage and can not get a "
-                    + "transaction ID.");
-            throw new IllegalArgumentException("Could not send SipMessage due to malformed header");
-        }
-        mExecutor.execute(() ->
-                mMessageCallback.onMessageSendFailure(transactionId, reason));
+        mExecutor.execute(() -> mMessageCallback.onMessageSendFailure(transactionId, reason));
     }
 }
diff --git a/telephony/java/android/telephony/ims/stub/RcsCapabilityExchangeImplBase.java b/telephony/java/android/telephony/ims/stub/RcsCapabilityExchangeImplBase.java
index a117adc..57616d35 100644
--- a/telephony/java/android/telephony/ims/stub/RcsCapabilityExchangeImplBase.java
+++ b/telephony/java/android/telephony/ims/stub/RcsCapabilityExchangeImplBase.java
@@ -441,30 +441,6 @@
      * @param contactUri The URI of the remote user that we wish to get the capabilities of.
      * @param myCapabilities The capabilities of this device to send to the remote user.
      * @param callback The callback of this request which is sent from the remote user.
-     * @hide
-     */
-    // executor used is defined in the constructor.
-    @SuppressLint("ExecutorRegistration")
-    public void sendOptionsCapabilityRequest(@NonNull Uri contactUri,
-            @NonNull List<String> myCapabilities, @NonNull OptionsResponseCallback callback) {
-        // Stub - to be implemented by service
-        Log.w(LOG_TAG, "sendOptionsCapabilityRequest called with no implementation.");
-        try {
-            callback.onCommandError(COMMAND_CODE_NOT_SUPPORTED);
-        } catch (ImsException e) {
-            // Do not do anything, this is a stub implementation.
-        }
-    }
-
-    /**
-     * Push one's own capabilities to a remote user via the SIP OPTIONS presence exchange mechanism
-     * in order to receive the capabilities of the remote user in response.
-     * <p>
-     * The implementer must use {@link OptionsResponseCallback} to send the response of
-     * this query from the network back to the framework.
-     * @param contactUri The URI of the remote user that we wish to get the capabilities of.
-     * @param myCapabilities The capabilities of this device to send to the remote user.
-     * @param callback The callback of this request which is sent from the remote user.
      */
     // executor used is defined in the constructor.
     @SuppressLint("ExecutorRegistration")
diff --git a/telephony/java/android/telephony/ims/stub/SipDelegate.java b/telephony/java/android/telephony/ims/stub/SipDelegate.java
index b036b5e..d5198a0 100644
--- a/telephony/java/android/telephony/ims/stub/SipDelegate.java
+++ b/telephony/java/android/telephony/ims/stub/SipDelegate.java
@@ -76,8 +76,30 @@
      *
      * @param callId The call-ID header value associated with the ongoing SIP Dialog that the
      *         framework is requesting be closed.
+     * @deprecated This method does not take into account INVITE forking. Use
+     * {@link #cleanupSession(String)} instead.
      */
-    void closeDialog(@NonNull String callId);
+    @Deprecated
+    default void closeDialog(@NonNull String callId) { }
+
+    /**
+     * The remote IMS application has closed a SIP session and the routing resources associated
+     * with the SIP session using the provided Call-ID may now be cleaned up.
+     * <p>
+     * Typically, a SIP session will be considered closed when all associated dialogs receive a
+     * BYE request. After the session has been closed, the IMS application will call
+     * {@link SipDelegateConnection#cleanupSession(String)} to signal to the framework that
+     * resources can be released. In some cases, the framework will request that the ImsService
+     * close the session due to the open SIP session holding up an event such as applying a
+     * provisioning change or handing over to another transport type. See
+     * {@link DelegateRegistrationState}.
+     *
+     * @param callId The call-ID header value associated with the ongoing SIP Session that the
+     *         framework is requesting be cleaned up.
+     */
+    default void cleanupSession(@NonNull String callId) {
+        closeDialog(callId);
+    }
 
     /**
      * The remote application has received the SIP message and is processing it.
diff --git a/tests/SilkFX/OWNERS b/tests/SilkFX/OWNERS
new file mode 100644
index 0000000..c88a9f8
--- /dev/null
+++ b/tests/SilkFX/OWNERS
@@ -0,0 +1 @@
+include /libs/hwui/OWNERS
diff --git a/tests/net/common/java/ParseExceptionTest.kt b/tests/net/common/java/ParseExceptionTest.kt
new file mode 100644
index 0000000..f17715a
--- /dev/null
+++ b/tests/net/common/java/ParseExceptionTest.kt
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import android.net.ParseException
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.SmallTest
+import junit.framework.Assert.assertEquals
+import junit.framework.Assert.assertNull
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@SmallTest
+@RunWith(AndroidJUnit4::class)
+class ParseExceptionTest {
+    @Test
+    fun testConstructor_WithCause() {
+        val testMessage = "Test message"
+        val base = Exception("Test")
+        val exception = ParseException(testMessage, base)
+
+        assertEquals(testMessage, exception.response)
+        assertEquals(base, exception.cause)
+    }
+
+    @Test
+    fun testConstructor_NoCause() {
+        val testMessage = "Test message"
+        val exception = ParseException(testMessage)
+
+        assertEquals(testMessage, exception.response)
+        assertNull(exception.cause)
+    }
+}
\ No newline at end of file
diff --git a/tests/net/common/java/android/net/NetworkAgentConfigTest.kt b/tests/net/common/java/android/net/NetworkAgentConfigTest.kt
index 1e54093..2b45b3d 100644
--- a/tests/net/common/java/android/net/NetworkAgentConfigTest.kt
+++ b/tests/net/common/java/android/net/NetworkAgentConfigTest.kt
@@ -44,6 +44,9 @@
             setSubscriberId("MySubId")
             setPartialConnectivityAcceptable(false)
             setUnvalidatedConnectivityAcceptable(true)
+            if (isAtLeastS()) {
+                setBypassableVpn(true)
+            }
         }.build()
         if (isAtLeastS()) {
             // From S, the config will have 12 items
@@ -63,8 +66,11 @@
             setPartialConnectivityAcceptable(false)
             setUnvalidatedConnectivityAcceptable(true)
             setLegacyTypeName("TEST_NETWORK")
-            disableNat64Detection()
-            disableProvisioningNotification()
+            if (isAtLeastS()) {
+                setNat64DetectionEnabled(false)
+                setProvisioningNotificationEnabled(false)
+                setBypassableVpn(true)
+            }
         }.build()
 
         assertTrue(config.isExplicitlySelected())
@@ -73,7 +79,13 @@
         assertFalse(config.isPartialConnectivityAcceptable())
         assertTrue(config.isUnvalidatedConnectivityAcceptable())
         assertEquals("TEST_NETWORK", config.getLegacyTypeName())
-        assertFalse(config.isNat64DetectionEnabled())
-        assertFalse(config.isProvisioningNotificationEnabled())
+        if (isAtLeastS()) {
+            assertFalse(config.isNat64DetectionEnabled())
+            assertFalse(config.isProvisioningNotificationEnabled())
+            assertTrue(config.isBypassableVpn())
+        } else {
+            assertTrue(config.isNat64DetectionEnabled())
+            assertTrue(config.isProvisioningNotificationEnabled())
+        }
     }
 }
diff --git a/tests/net/common/java/android/net/TcpKeepalivePacketDataTest.kt b/tests/net/common/java/android/net/TcpKeepalivePacketDataTest.kt
index 6770066..7a18bb0 100644
--- a/tests/net/common/java/android/net/TcpKeepalivePacketDataTest.kt
+++ b/tests/net/common/java/android/net/TcpKeepalivePacketDataTest.kt
@@ -92,12 +92,12 @@
         assertTrue(str.contains(data.dstAddress.hostAddress))
         assertTrue(str.contains(data.dstPort.toString()))
         // .packet not included in toString()
-        assertTrue(str.contains(data.tcpSeq.toString()))
-        assertTrue(str.contains(data.tcpAck.toString()))
-        assertTrue(str.contains(data.tcpWindow.toString()))
-        assertTrue(str.contains(data.tcpWindowScale.toString()))
-        assertTrue(str.contains(data.ipTos.toString()))
-        assertTrue(str.contains(data.ipTtl.toString()))
+        assertTrue(str.contains(data.getTcpSeq().toString()))
+        assertTrue(str.contains(data.getTcpAck().toString()))
+        assertTrue(str.contains(data.getTcpWindow().toString()))
+        assertTrue(str.contains(data.getTcpWindowScale().toString()))
+        assertTrue(str.contains(data.getIpTos().toString()))
+        assertTrue(str.contains(data.getIpTtl().toString()))
 
         // Update above assertions if field is added
         assertFieldCountEquals(5, KeepalivePacketData::class.java)
diff --git a/tests/net/java/android/net/ConnectivityManagerTest.java b/tests/net/java/android/net/ConnectivityManagerTest.java
index 6cbdd25..19f8843 100644
--- a/tests/net/java/android/net/ConnectivityManagerTest.java
+++ b/tests/net/java/android/net/ConnectivityManagerTest.java
@@ -384,7 +384,7 @@
                 eq(TRACK_DEFAULT.ordinal()), any(), anyInt(), any(), eq(TYPE_NONE), anyInt(),
                 eq(testPkgName), eq(testAttributionTag));
 
-        manager.requestBackgroundNetwork(request, handler, callback);
+        manager.requestBackgroundNetwork(request, callback, handler);
         verify(mService).requestNetwork(eq(Process.INVALID_UID), eq(request.networkCapabilities),
                 eq(BACKGROUND_REQUEST.ordinal()), any(), anyInt(), any(), eq(TYPE_NONE), anyInt(),
                 eq(testPkgName), eq(testAttributionTag));
diff --git a/tests/net/java/android/net/VpnTransportInfoTest.java b/tests/net/java/android/net/VpnTransportInfoTest.java
index b7a42ec..fee65f0 100644
--- a/tests/net/java/android/net/VpnTransportInfoTest.java
+++ b/tests/net/java/android/net/VpnTransportInfoTest.java
@@ -16,6 +16,9 @@
 
 package android.net;
 
+import static android.net.NetworkCapabilities.REDACT_FOR_NETWORK_SETTINGS;
+import static android.net.NetworkCapabilities.REDACT_NONE;
+
 import static com.android.testutils.ParcelUtils.assertParcelSane;
 
 import static org.junit.Assert.assertEquals;
@@ -33,23 +36,33 @@
 
     @Test
     public void testParceling() {
-        VpnTransportInfo v = new VpnTransportInfo(VpnManager.TYPE_VPN_PLATFORM);
-        assertParcelSane(v, 1 /* fieldCount */);
+        VpnTransportInfo v = new VpnTransportInfo(VpnManager.TYPE_VPN_PLATFORM, "12345");
+        assertParcelSane(v, 2 /* fieldCount */);
     }
 
     @Test
     public void testEqualsAndHashCode() {
-        VpnTransportInfo v1 = new VpnTransportInfo(VpnManager.TYPE_VPN_PLATFORM);
-        VpnTransportInfo v2 = new VpnTransportInfo(VpnManager.TYPE_VPN_SERVICE);
-        VpnTransportInfo v3 = new VpnTransportInfo(VpnManager.TYPE_VPN_PLATFORM);
-        VpnTransportInfo v4 = new VpnTransportInfo(VpnManager.TYPE_VPN_LEGACY);
-        VpnTransportInfo v5 = new VpnTransportInfo(VpnManager.TYPE_VPN_OEM);
+        String session1 = "12345";
+        String session2 = "6789";
+        VpnTransportInfo v11 = new VpnTransportInfo(VpnManager.TYPE_VPN_PLATFORM, session1);
+        VpnTransportInfo v12 = new VpnTransportInfo(VpnManager.TYPE_VPN_SERVICE, session1);
+        VpnTransportInfo v13 = new VpnTransportInfo(VpnManager.TYPE_VPN_PLATFORM, session1);
+        VpnTransportInfo v14 = new VpnTransportInfo(VpnManager.TYPE_VPN_LEGACY, session1);
+        VpnTransportInfo v15 = new VpnTransportInfo(VpnManager.TYPE_VPN_OEM, session1);
+        VpnTransportInfo v21 = new VpnTransportInfo(VpnManager.TYPE_VPN_LEGACY, session2);
 
-        assertNotEquals(v1, v2);
-        assertNotEquals(v3, v4);
-        assertNotEquals(v4, v5);
+        VpnTransportInfo v31 = v11.makeCopy(REDACT_FOR_NETWORK_SETTINGS);
+        VpnTransportInfo v32 = v13.makeCopy(REDACT_FOR_NETWORK_SETTINGS);
 
-        assertEquals(v1, v3);
-        assertEquals(v1.hashCode(), v3.hashCode());
+        assertNotEquals(v11, v12);
+        assertNotEquals(v13, v14);
+        assertNotEquals(v14, v15);
+        assertNotEquals(v14, v21);
+
+        assertEquals(v11, v13);
+        assertEquals(v31, v32);
+        assertEquals(v11.hashCode(), v13.hashCode());
+        assertEquals(REDACT_FOR_NETWORK_SETTINGS, v32.getApplicableRedactions());
+        assertEquals(session1, v15.makeCopy(REDACT_NONE).sessionId);
     }
-}
\ No newline at end of file
+}
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index ad93420..91811f6 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -18,8 +18,13 @@
 
 import static android.Manifest.permission.CHANGE_NETWORK_STATE;
 import static android.Manifest.permission.CONNECTIVITY_USE_RESTRICTED_NETWORKS;
+import static android.Manifest.permission.DUMP;
+import static android.Manifest.permission.NETWORK_FACTORY;
 import static android.Manifest.permission.NETWORK_SETTINGS;
 import static android.app.PendingIntent.FLAG_IMMUTABLE;
+import static android.content.Intent.ACTION_PACKAGE_ADDED;
+import static android.content.Intent.ACTION_PACKAGE_REMOVED;
+import static android.content.Intent.ACTION_PACKAGE_REPLACED;
 import static android.content.Intent.ACTION_USER_ADDED;
 import static android.content.Intent.ACTION_USER_REMOVED;
 import static android.content.Intent.ACTION_USER_UNLOCKED;
@@ -59,6 +64,7 @@
 import static android.net.INetworkMonitor.NETWORK_VALIDATION_PROBE_PRIVDNS;
 import static android.net.INetworkMonitor.NETWORK_VALIDATION_RESULT_PARTIAL;
 import static android.net.INetworkMonitor.NETWORK_VALIDATION_RESULT_VALID;
+import static android.net.NetworkCapabilities.NET_CAPABILITY_BIP;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_CAPTIVE_PORTAL;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_CBS;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_DUN;
@@ -85,6 +91,7 @@
 import static android.net.NetworkCapabilities.NET_CAPABILITY_TEMPORARILY_NOT_METERED;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_TRUSTED;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_VALIDATED;
+import static android.net.NetworkCapabilities.NET_CAPABILITY_VSIM;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_WIFI_P2P;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_XCAP;
 import static android.net.NetworkCapabilities.REDACT_FOR_ACCESS_FINE_LOCATION;
@@ -350,6 +357,8 @@
 import java.util.concurrent.atomic.AtomicReference;
 import java.util.function.Predicate;
 import java.util.function.Supplier;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 
 import kotlin.reflect.KClass;
@@ -577,6 +586,7 @@
             final UserManager umMock = createContextAsUser(userHandle, 0 /* flags */)
                     .getSystemService(UserManager.class);
             doReturn(value).when(umMock).isManagedProfile();
+            doReturn(value).when(mUserManager).isManagedProfile(eq(userHandle.getIdentifier()));
         }
 
         @Override
@@ -1228,10 +1238,12 @@
             if (mAgentRegistered) throw new IllegalStateException("already registered");
             updateState(NetworkInfo.DetailedState.CONNECTING, "registerAgent");
             mConfig = new VpnConfig();
+            mConfig.session = "MySession12345";
             setUids(uids);
             if (!isAlwaysMetered) mNetworkCapabilities.addCapability(NET_CAPABILITY_NOT_METERED);
             mInterface = VPN_IFNAME;
-            mNetworkCapabilities.setTransportInfo(new VpnTransportInfo(getActiveVpnType()));
+            mNetworkCapabilities.setTransportInfo(new VpnTransportInfo(getActiveVpnType(),
+                    mConfig.session));
             mMockNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_VPN, lp,
                     mNetworkCapabilities);
             mMockNetworkAgent.waitForIdle(TIMEOUT_MS);
@@ -2791,10 +2803,14 @@
     }
 
     private void grantUsingBackgroundNetworksPermissionForUid(final int uid) throws Exception {
-        final String myPackageName = mContext.getPackageName();
-        when(mPackageManager.getPackageInfo(eq(myPackageName), eq(GET_PERMISSIONS)))
+        grantUsingBackgroundNetworksPermissionForUid(uid, mContext.getPackageName());
+    }
+
+    private void grantUsingBackgroundNetworksPermissionForUid(
+            final int uid, final String packageName) throws Exception {
+        when(mPackageManager.getPackageInfo(eq(packageName), eq(GET_PERMISSIONS)))
                 .thenReturn(buildPackageInfo(true, uid));
-        mService.mPermissionMonitor.onPackageAdded(myPackageName, uid);
+        mService.mPermissionMonitor.onPackageAdded(packageName, uid);
     }
 
     @Test
@@ -3031,10 +3047,11 @@
         // Verify NOT_RESTRICTED is set appropriately
         final NetworkCapabilities nc = new NetworkRequest.Builder().addCapability(capability)
                 .build().networkCapabilities;
-        if (capability == NET_CAPABILITY_CBS || capability == NET_CAPABILITY_DUN ||
-                capability == NET_CAPABILITY_EIMS || capability == NET_CAPABILITY_FOTA ||
-                capability == NET_CAPABILITY_IA || capability == NET_CAPABILITY_IMS ||
-                capability == NET_CAPABILITY_RCS || capability == NET_CAPABILITY_XCAP
+        if (capability == NET_CAPABILITY_CBS || capability == NET_CAPABILITY_DUN
+                || capability == NET_CAPABILITY_EIMS || capability == NET_CAPABILITY_FOTA
+                || capability == NET_CAPABILITY_IA || capability == NET_CAPABILITY_IMS
+                || capability == NET_CAPABILITY_RCS || capability == NET_CAPABILITY_XCAP
+                || capability == NET_CAPABILITY_VSIM || capability == NET_CAPABILITY_BIP
                 || capability == NET_CAPABILITY_ENTERPRISE) {
             assertFalse(nc.hasCapability(NET_CAPABILITY_NOT_RESTRICTED));
         } else {
@@ -3144,6 +3161,8 @@
         tryNetworkFactoryRequests(NET_CAPABILITY_INTERNET);
         tryNetworkFactoryRequests(NET_CAPABILITY_TRUSTED);
         tryNetworkFactoryRequests(NET_CAPABILITY_NOT_VPN);
+        tryNetworkFactoryRequests(NET_CAPABILITY_VSIM);
+        tryNetworkFactoryRequests(NET_CAPABILITY_BIP);
         // Skipping VALIDATED and CAPTIVE_PORTAL as they're disallowed.
     }
 
@@ -4243,7 +4262,7 @@
         final TestNetworkCallback cellBgCallback = new TestNetworkCallback();
         mCm.requestBackgroundNetwork(new NetworkRequest.Builder()
                 .addTransportType(TRANSPORT_CELLULAR).build(),
-                mCsHandlerThread.getThreadHandler(), cellBgCallback);
+                cellBgCallback, mCsHandlerThread.getThreadHandler());
 
         // Make callbacks for monitoring.
         final NetworkRequest request = new NetworkRequest.Builder().build();
@@ -9141,7 +9160,7 @@
 
         final int expectedOwnerUidWithoutIncludeFlag =
                 shouldInclLocationSensitiveOwnerUidWithoutIncludeFlag
-                        ? Process.myUid() : INVALID_UID;
+                        ? myUid : INVALID_UID;
         assertEquals(expectedOwnerUidWithoutIncludeFlag, getOwnerUidNetCapsPermission(
                 myUid, myUid, false /* includeLocationSensitiveInfo */));
 
@@ -9160,22 +9179,26 @@
 
     }
 
+    private void verifyOwnerUidAndTransportInfoNetCapsPermissionPreS() {
+        verifyOwnerUidAndTransportInfoNetCapsPermission(
+                // Ensure that owner uid is included even if the request asks to remove it (which is
+                // the default) since the app has necessary permissions and targetSdk < S.
+                true, /* shouldInclLocationSensitiveOwnerUidWithoutIncludeFlag */
+                true, /* shouldInclLocationSensitiveOwnerUidWithIncludeFlag */
+                // Ensure that location info is removed if the request asks to remove it even if the
+                // app has necessary permissions.
+                false, /* shouldInclLocationSensitiveTransportInfoWithoutIncludeFlag */
+                true /* shouldInclLocationSensitiveTransportInfoWithIncludeFlag */
+        );
+    }
+
     @Test
-    public void testCreateWithLocationInfoSanitizedWithFineLocationAfterQ()
+    public void testCreateWithLocationInfoSanitizedWithFineLocationAfterQPreS()
             throws Exception {
         setupLocationPermissions(Build.VERSION_CODES.Q, true, AppOpsManager.OPSTR_FINE_LOCATION,
                 Manifest.permission.ACCESS_FINE_LOCATION);
 
-        verifyOwnerUidAndTransportInfoNetCapsPermission(
-                // Ensure that we include owner uid even if the request asks to remove it since the
-                // app has necessary permissions and targetSdk < S.
-                true, /* shouldInclLocationSensitiveOwnerUidWithoutIncludeFlag */
-                true, /* shouldInclLocationSensitiveOwnerUidWithIncludeFlag */
-                false, /* shouldInclLocationSensitiveTransportInfoWithoutIncludeFlag */
-                // Ensure that we remove location info if the request asks to remove it even if the
-                // app has necessary permissions.
-                true /* shouldInclLocationSensitiveTransportInfoWithIncludeFlag */
-        );
+        verifyOwnerUidAndTransportInfoNetCapsPermissionPreS();
     }
 
     @Test
@@ -9184,16 +9207,7 @@
         setupLocationPermissions(Build.VERSION_CODES.R, true, AppOpsManager.OPSTR_FINE_LOCATION,
                 Manifest.permission.ACCESS_FINE_LOCATION);
 
-        verifyOwnerUidAndTransportInfoNetCapsPermission(
-                // Ensure that we include owner uid even if the request asks to remove it since the
-                // app has necessary permissions and targetSdk < S.
-                true, /* shouldInclLocationSensitiveOwnerUidWithoutIncludeFlag */
-                true, /* shouldInclLocationSensitiveOwnerUidWithIncludeFlag */
-                false, /* shouldInclLocationSensitiveTransportInfoWithoutIncludeFlag */
-                // Ensure that we remove location info if the request asks to remove it even if the
-                // app has necessary permissions.
-                true /* shouldInclLocationSensitiveTransportInfoWithIncludeFlag */
-        );
+        verifyOwnerUidAndTransportInfoNetCapsPermissionPreS();
     }
 
     @Test
@@ -9204,13 +9218,13 @@
                 Manifest.permission.ACCESS_FINE_LOCATION);
 
         verifyOwnerUidAndTransportInfoNetCapsPermission(
-                // Ensure that we owner UID if the request asks us to remove it even if the app
-                // has necessary permissions since targetSdk >= S.
+                // Ensure that the owner UID is removed if the request asks us to remove it even
+                // if the app has necessary permissions since targetSdk >= S.
                 false, /* shouldInclLocationSensitiveOwnerUidWithoutIncludeFlag */
                 true, /* shouldInclLocationSensitiveOwnerUidWithIncludeFlag */
-                false, /* shouldInclLocationSensitiveTransportInfoWithoutIncludeFlag */
-                // Ensure that we remove location info if the request asks to remove it even if the
+                // Ensure that location info is removed if the request asks to remove it even if the
                 // app has necessary permissions.
+                false, /* shouldInclLocationSensitiveTransportInfoWithoutIncludeFlag */
                 true /* shouldInclLocationSensitiveTransportInfoWithIncludeFlag */
         );
     }
@@ -9221,15 +9235,15 @@
         setupLocationPermissions(Build.VERSION_CODES.P, true, AppOpsManager.OPSTR_COARSE_LOCATION,
                 Manifest.permission.ACCESS_COARSE_LOCATION);
 
+        verifyOwnerUidAndTransportInfoNetCapsPermissionPreS();
+    }
+
+    private void verifyOwnerUidAndTransportInfoNetCapsNotIncluded() {
         verifyOwnerUidAndTransportInfoNetCapsPermission(
-                // Ensure that we owner UID if the request asks us to remove it even if the app
-                // has necessary permissions since targetSdk >= S.
-                true, /* shouldInclLocationSensitiveOwnerUidWithoutIncludeFlag */
-                true, /* shouldInclLocationSensitiveOwnerUidWithIncludeFlag */
+                false, /* shouldInclLocationSensitiveOwnerUidWithoutIncludeFlag */
+                false, /* shouldInclLocationSensitiveOwnerUidWithIncludeFlag */
                 false, /* shouldInclLocationSensitiveTransportInfoWithoutIncludeFlag */
-                // Ensure that we remove location info if the request asks to remove it even if the
-                // app has necessary permissions.
-                true /* shouldInclLocationSensitiveTransportInfoWithIncludeFlag */
+                false /* shouldInclLocationSensitiveTransportInfoWithIncludeFlag */
         );
     }
 
@@ -9239,12 +9253,7 @@
         setupLocationPermissions(Build.VERSION_CODES.Q, false, AppOpsManager.OPSTR_FINE_LOCATION,
                 Manifest.permission.ACCESS_FINE_LOCATION);
 
-        verifyOwnerUidAndTransportInfoNetCapsPermission(
-                false, /* shouldInclLocationSensitiveOwnerUidWithoutIncludeFlag */
-                false, /* shouldInclLocationSensitiveOwnerUidWithIncludeFlag */
-                false, /* shouldInclLocationSensitiveTransportInfoWithoutIncludeFlag */
-                false /* shouldInclLocationSensitiveTransportInfoWithIncludeFlag */
-        );
+        verifyOwnerUidAndTransportInfoNetCapsNotIncluded();
     }
 
     @Test
@@ -9266,26 +9275,17 @@
         setupLocationPermissions(Build.VERSION_CODES.Q, true, AppOpsManager.OPSTR_COARSE_LOCATION,
                 Manifest.permission.ACCESS_COARSE_LOCATION);
 
-        verifyOwnerUidAndTransportInfoNetCapsPermission(
-                false, /* shouldInclLocationSensitiveOwnerUidWithoutIncludeFlag */
-                false, /* shouldInclLocationSensitiveOwnerUidWithIncludeFlag */
-                false, /* shouldInclLocationSensitiveTransportInfoWithoutIncludeFlag */
-                false /* shouldInclLocationSensitiveTransportInfoWithIncludeFlag */
-        );
+        verifyOwnerUidAndTransportInfoNetCapsNotIncluded();
     }
 
     @Test
-    public void testCreateWithLocationInfoSanitizedWithoutLocationPermission()
+    public void testCreateWithLocationInfoSanitizedWithCoarseLocationAfterS()
             throws Exception {
         // Test that not having fine location permission leads to sanitization.
-        setupLocationPermissions(Build.VERSION_CODES.Q, true, null /* op */, null /* perm */);
+        setupLocationPermissions(Build.VERSION_CODES.S, true, AppOpsManager.OPSTR_COARSE_LOCATION,
+                Manifest.permission.ACCESS_COARSE_LOCATION);
 
-        verifyOwnerUidAndTransportInfoNetCapsPermission(
-                false, /* shouldInclLocationSensitiveOwnerUidWithoutIncludeFlag */
-                false, /* shouldInclLocationSensitiveOwnerUidWithIncludeFlag */
-                false, /* shouldInclLocationSensitiveTransportInfoWithoutIncludeFlag */
-                false /* shouldInclLocationSensitiveTransportInfoWithIncludeFlag */
-        );
+        verifyOwnerUidAndTransportInfoNetCapsNotIncluded();
     }
 
     @Test
@@ -9953,6 +9953,7 @@
 
     @Test
     public void testDumpDoesNotCrash() {
+        mServiceContext.setPermission(DUMP, PERMISSION_GRANTED);
         // Filing a couple requests prior to testing the dump.
         final TestNetworkCallback genericNetworkCallback = new TestNetworkCallback();
         final TestNetworkCallback wifiNetworkCallback = new TestNetworkCallback();
@@ -10253,6 +10254,12 @@
                 .thenReturn(applicationInfo);
     }
 
+    private void mockGetApplicationInfoThrowsNameNotFound(@NonNull final String packageName)
+            throws Exception {
+        when(mPackageManager.getApplicationInfo(eq(packageName), anyInt()))
+                .thenThrow(new PackageManager.NameNotFoundException(packageName));
+    }
+
     private void mockHasSystemFeature(@NonNull final String featureName,
             @NonNull final boolean hasFeature) {
         when(mPackageManager.hasSystemFeature(eq(featureName)))
@@ -10709,15 +10716,23 @@
             @NonNull final UidRangeParcel[] uidRanges,
             @NonNull final String testPackageName)
             throws Exception {
-        mockHasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE, true);
-
         // These tests work off a single UID therefore using 'start' is valid.
         mockGetApplicationInfo(testPackageName, uidRanges[0].start);
 
+        setOemNetworkPreference(networkPrefToSetup, testPackageName);
+    }
+
+    private void setOemNetworkPreference(final int networkPrefToSetup,
+            @NonNull final String... testPackageNames)
+            throws Exception {
+        mockHasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE, true);
+
         // Build OemNetworkPreferences object
-        final OemNetworkPreferences pref = new OemNetworkPreferences.Builder()
-                .addNetworkPreference(testPackageName, networkPrefToSetup)
-                .build();
+        final OemNetworkPreferences.Builder builder = new OemNetworkPreferences.Builder();
+        for (final String packageName : testPackageNames) {
+            builder.addNetworkPreference(packageName, networkPrefToSetup);
+        }
+        final OemNetworkPreferences pref = builder.build();
 
         // Act on ConnectivityService.setOemNetworkPreference()
         final TestOemListenerCallback oemPrefListener = new TestOemListenerCallback();
@@ -11316,8 +11331,7 @@
         // Arrange PackageManager mocks
         final int secondUserTestPackageUid = UserHandle.getUid(secondUser, TEST_PACKAGE_UID);
         final UidRangeParcel[] uidRangesSingleUser =
-                toUidRangeStableParcels(
-                        uidRangesForUids(TEST_PACKAGE_UID));
+                toUidRangeStableParcels(uidRangesForUids(TEST_PACKAGE_UID));
         final UidRangeParcel[] uidRangesBothUsers =
                 toUidRangeStableParcels(
                         uidRangesForUids(TEST_PACKAGE_UID, secondUserTestPackageUid));
@@ -11364,6 +11378,84 @@
                 false /* shouldDestroyNetwork */);
     }
 
+    @Test
+    public void testMultilayerForPackageChangesEvaluatesCorrectly()
+            throws Exception {
+        @OemNetworkPreferences.OemNetworkPreference final int networkPref =
+                OEM_NETWORK_PREFERENCE_OEM_PAID;
+        final String packageScheme = "package:";
+
+        // Arrange PackageManager mocks
+        final String packageToInstall = "package.to.install";
+        final int packageToInstallUid = 81387;
+        final UidRangeParcel[] uidRangesSinglePackage =
+                toUidRangeStableParcels(uidRangesForUids(TEST_PACKAGE_UID));
+        mockGetApplicationInfo(TEST_PACKAGE_NAME, TEST_PACKAGE_UID);
+        mockGetApplicationInfoThrowsNameNotFound(packageToInstall);
+        setOemNetworkPreference(networkPref, TEST_PACKAGE_NAME, packageToInstall);
+        grantUsingBackgroundNetworksPermissionForUid(Binder.getCallingUid(), packageToInstall);
+
+        // Verify the starting state. No networks should be connected.
+        verifySetOemNetworkPreferenceForPreference(uidRangesSinglePackage,
+                OEM_PREF_ANY_NET_ID, 0 /* times */,
+                OEM_PREF_ANY_NET_ID, 0 /* times */,
+                false /* shouldDestroyNetwork */);
+
+        // Test that we correctly add the expected values for installed packages.
+        setOemNetworkPreferenceAgentConnected(TRANSPORT_CELLULAR, true);
+        verifySetOemNetworkPreferenceForPreference(uidRangesSinglePackage,
+                mCellNetworkAgent.getNetwork().netId, 1 /* times */,
+                OEM_PREF_ANY_NET_ID, 0 /* times */,
+                false /* shouldDestroyNetwork */);
+
+        // Set the system to recognize the package to be installed
+        mockGetApplicationInfo(packageToInstall, packageToInstallUid);
+        final UidRangeParcel[] uidRangesAllPackages =
+                toUidRangeStableParcels(uidRangesForUids(TEST_PACKAGE_UID, packageToInstallUid));
+
+        // Send a broadcast indicating a package was installed.
+        final Intent addedIntent = new Intent(ACTION_PACKAGE_ADDED);
+        addedIntent.setData(Uri.parse(packageScheme + packageToInstall));
+        processBroadcast(addedIntent);
+
+        // Test the single package is removed and the combined packages are added.
+        verifySetOemNetworkPreferenceForPreference(uidRangesAllPackages, uidRangesSinglePackage,
+                mCellNetworkAgent.getNetwork().netId, 1 /* times */,
+                mCellNetworkAgent.getNetwork().netId, 1 /* times */,
+                false /* shouldDestroyNetwork */);
+
+        // Set the system to no longer recognize the package to be installed
+        mockGetApplicationInfoThrowsNameNotFound(packageToInstall);
+
+        // Send a broadcast indicating a package was removed.
+        final Intent removedIntent = new Intent(ACTION_PACKAGE_REMOVED);
+        removedIntent.setData(Uri.parse(packageScheme + packageToInstall));
+        processBroadcast(removedIntent);
+
+        // Test the combined packages are removed and the single package is added.
+        verifySetOemNetworkPreferenceForPreference(uidRangesSinglePackage, uidRangesAllPackages,
+                mCellNetworkAgent.getNetwork().netId, 1 /* times */,
+                mCellNetworkAgent.getNetwork().netId, 1 /* times */,
+                false /* shouldDestroyNetwork */);
+
+        // Set the system to change the installed package's uid
+        final int replacedTestPackageUid = TEST_PACKAGE_UID + 1;
+        mockGetApplicationInfo(TEST_PACKAGE_NAME, replacedTestPackageUid);
+        final UidRangeParcel[] uidRangesReplacedPackage =
+                toUidRangeStableParcels(uidRangesForUids(replacedTestPackageUid));
+
+        // Send a broadcast indicating a package was replaced.
+        final Intent replacedIntent = new Intent(ACTION_PACKAGE_REPLACED);
+        replacedIntent.setData(Uri.parse(packageScheme + TEST_PACKAGE_NAME));
+        processBroadcast(replacedIntent);
+
+        // Test the original uid is removed and is replaced with the new uid.
+        verifySetOemNetworkPreferenceForPreference(uidRangesReplacedPackage, uidRangesSinglePackage,
+                mCellNetworkAgent.getNetwork().netId, 1 /* times */,
+                mCellNetworkAgent.getNetwork().netId, 1 /* times */,
+                false /* shouldDestroyNetwork */);
+    }
+
     /**
      * Test network priority for preference OEM_NETWORK_PREFERENCE_OEM_PAID in the following order:
      * NET_CAPABILITY_NOT_METERED -> NET_CAPABILITY_OEM_PAID -> fallback
@@ -11618,6 +11710,33 @@
     }
 
     @Test
+    public void testSetOemNetworkPreferenceLogsRequest() throws Exception {
+        mServiceContext.setPermission(DUMP, PERMISSION_GRANTED);
+        @OemNetworkPreferences.OemNetworkPreference final int networkPref =
+                OEM_NETWORK_PREFERENCE_OEM_PAID;
+        final StringWriter stringWriter = new StringWriter();
+        final String logIdentifier = "UPDATE INITIATED: OemNetworkPreferences";
+        final Pattern pattern = Pattern.compile(logIdentifier);
+
+        final int expectedNumLogs = 2;
+        final UidRangeParcel[] uidRanges =
+                toUidRangeStableParcels(uidRangesForUids(TEST_PACKAGE_UID));
+
+        // Call twice to generate two logs.
+        setupSetOemNetworkPreferenceForPreferenceTest(networkPref, uidRanges, TEST_PACKAGE_NAME);
+        setupSetOemNetworkPreferenceForPreferenceTest(networkPref, uidRanges, TEST_PACKAGE_NAME);
+        mService.dump(new FileDescriptor(), new PrintWriter(stringWriter), new String[0]);
+
+        final String dumpOutput = stringWriter.toString();
+        final Matcher matcher = pattern.matcher(dumpOutput);
+        int count = 0;
+        while (matcher.find()) {
+            count++;
+        }
+        assertEquals(expectedNumLogs, count);
+    }
+
+    @Test
     public void testGetAllNetworkStateSnapshot() throws Exception {
         verifyNoNetwork();
 
@@ -12186,4 +12305,68 @@
                         mCm.setProfileNetworkPreference(testHandle,
                                 PROFILE_NETWORK_PREFERENCE_ENTERPRISE, null, null));
     }
+
+    @Test
+    public void testSubIdsClearedWithoutNetworkFactoryPermission() throws Exception {
+        mServiceContext.setPermission(NETWORK_FACTORY, PERMISSION_DENIED);
+        final NetworkCapabilities nc = new NetworkCapabilities();
+        nc.setSubIds(Collections.singleton(Process.myUid()));
+
+        final NetworkCapabilities result =
+                mService.networkCapabilitiesRestrictedForCallerPermissions(
+                        nc, Process.myPid(), Process.myUid());
+        assertTrue(result.getSubIds().isEmpty());
+    }
+
+    @Test
+    public void testSubIdsExistWithNetworkFactoryPermission() throws Exception {
+        mServiceContext.setPermission(NETWORK_FACTORY, PERMISSION_GRANTED);
+
+        final Set<Integer> subIds = Collections.singleton(Process.myUid());
+        final NetworkCapabilities nc = new NetworkCapabilities();
+        nc.setSubIds(subIds);
+
+        final NetworkCapabilities result =
+                mService.networkCapabilitiesRestrictedForCallerPermissions(
+                        nc, Process.myPid(), Process.myUid());
+        assertEquals(subIds, result.getSubIds());
+    }
+
+    private NetworkRequest getRequestWithSubIds() {
+        return new NetworkRequest.Builder()
+                .setSubIds(Collections.singleton(Process.myUid()))
+                .build();
+    }
+
+    @Test
+    public void testNetworkRequestWithSubIdsWithNetworkFactoryPermission() throws Exception {
+        mServiceContext.setPermission(NETWORK_FACTORY, PERMISSION_GRANTED);
+        final PendingIntent pendingIntent = PendingIntent.getBroadcast(
+                mContext, 0 /* requestCode */, new Intent("a"), FLAG_IMMUTABLE);
+        final NetworkCallback networkCallback1 = new NetworkCallback();
+        final NetworkCallback networkCallback2 = new NetworkCallback();
+
+        mCm.requestNetwork(getRequestWithSubIds(), networkCallback1);
+        mCm.requestNetwork(getRequestWithSubIds(), pendingIntent);
+        mCm.registerNetworkCallback(getRequestWithSubIds(), networkCallback2);
+
+        mCm.unregisterNetworkCallback(networkCallback1);
+        mCm.releaseNetworkRequest(pendingIntent);
+        mCm.unregisterNetworkCallback(networkCallback2);
+    }
+
+    @Test
+    public void testNetworkRequestWithSubIdsWithoutNetworkFactoryPermission() throws Exception {
+        mServiceContext.setPermission(NETWORK_FACTORY, PERMISSION_DENIED);
+        final PendingIntent pendingIntent = PendingIntent.getBroadcast(
+                mContext, 0 /* requestCode */, new Intent("a"), FLAG_IMMUTABLE);
+
+        final Class<SecurityException> expected = SecurityException.class;
+        assertThrows(
+                expected, () -> mCm.requestNetwork(getRequestWithSubIds(), new NetworkCallback()));
+        assertThrows(expected, () -> mCm.requestNetwork(getRequestWithSubIds(), pendingIntent));
+        assertThrows(
+                expected,
+                () -> mCm.registerNetworkCallback(getRequestWithSubIds(), new NetworkCallback()));
+    }
 }
diff --git a/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java b/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java
index fec5ef3..d7535a9 100644
--- a/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java
+++ b/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java
@@ -197,7 +197,7 @@
         } else {
             pkgInfo = packageInfoWithPermissions(REQUESTED_PERMISSION_GRANTED, new String[] {}, "");
         }
-        pkgInfo.applicationInfo.uid = UserHandle.getUid(user, UserHandle.getAppId(uid));
+        pkgInfo.applicationInfo.uid = user.getUid(UserHandle.getAppId(uid));
         return pkgInfo;
     }
 
@@ -390,7 +390,7 @@
         public void expectPermission(Boolean permission, UserHandle[] users, int[] apps) {
             for (final UserHandle user : users) {
                 for (final int app : apps) {
-                    final int uid = UserHandle.getUid(user, app);
+                    final int uid = user.getUid(app);
                     if (!mApps.containsKey(uid)) {
                         fail("uid " + uid + " does not exist.");
                     }
@@ -404,7 +404,7 @@
         public void expectNoPermission(UserHandle[] users, int[] apps) {
             for (final UserHandle user : users) {
                 for (final int app : apps) {
-                    final int uid = UserHandle.getUid(user, app);
+                    final int uid = user.getUid(app);
                     if (mApps.containsKey(uid)) {
                         fail("uid " + uid + " has listed permissions, expected none.");
                     }
@@ -502,9 +502,9 @@
 
         // When MOCK_UID1 package is uninstalled and reinstalled, expect Netd to be updated
         mPermissionMonitor.onPackageRemoved(
-                MOCK_PACKAGE1, UserHandle.getUid(MOCK_USER1, MOCK_UID1));
+                MOCK_PACKAGE1, MOCK_USER1.getUid(MOCK_UID1));
         verify(mNetdService).firewallRemoveUidInterfaceRules(aryEq(new int[] {MOCK_UID1}));
-        mPermissionMonitor.onPackageAdded(MOCK_PACKAGE1, UserHandle.getUid(MOCK_USER1, MOCK_UID1));
+        mPermissionMonitor.onPackageAdded(MOCK_PACKAGE1, MOCK_USER1.getUid(MOCK_UID1));
         verify(mNetdService).firewallAddUidInterfaceRules(eq("tun0"),
                 aryEq(new int[] {MOCK_UID1}));
 
@@ -541,13 +541,13 @@
         mPermissionMonitor.onVpnUidRangesAdded("tun0", vpnRange, VPN_UID);
 
         // Newly-installed package should have uid rules added
-        mPermissionMonitor.onPackageAdded(MOCK_PACKAGE1, UserHandle.getUid(MOCK_USER1, MOCK_UID1));
+        mPermissionMonitor.onPackageAdded(MOCK_PACKAGE1, MOCK_USER1.getUid(MOCK_UID1));
         verify(mNetdService).firewallAddUidInterfaceRules(eq("tun0"),
                 aryEq(new int[] {MOCK_UID1}));
 
         // Removed package should have its uid rules removed
         mPermissionMonitor.onPackageRemoved(
-                MOCK_PACKAGE1, UserHandle.getUid(MOCK_USER1, MOCK_UID1));
+                MOCK_PACKAGE1, MOCK_USER1.getUid(MOCK_UID1));
         verify(mNetdService).firewallRemoveUidInterfaceRules(aryEq(new int[] {MOCK_UID1}));
     }
 
@@ -557,13 +557,13 @@
     // called multiple times with the uid corresponding to each user.
     private void addPackageForUsers(UserHandle[] users, String packageName, int uid) {
         for (final UserHandle user : users) {
-            mPermissionMonitor.onPackageAdded(packageName, UserHandle.getUid(user, uid));
+            mPermissionMonitor.onPackageAdded(packageName, user.getUid(uid));
         }
     }
 
     private void removePackageForUsers(UserHandle[] users, String packageName, int uid) {
         for (final UserHandle user : users) {
-            mPermissionMonitor.onPackageRemoved(packageName, UserHandle.getUid(user, uid));
+            mPermissionMonitor.onPackageRemoved(packageName, user.getUid(uid));
         }
     }
 
diff --git a/tests/vcn/java/android/net/vcn/VcnControlPlaneIkeConfigTest.java b/tests/vcn/java/android/net/vcn/VcnControlPlaneIkeConfigTest.java
index 2333718..43b80e4 100644
--- a/tests/vcn/java/android/net/vcn/VcnControlPlaneIkeConfigTest.java
+++ b/tests/vcn/java/android/net/vcn/VcnControlPlaneIkeConfigTest.java
@@ -22,12 +22,7 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.fail;
-import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.mock;
 
-import android.content.Context;
-import android.net.ConnectivityManager;
-import android.net.Network;
 import android.net.ipsec.ike.ChildSaProposal;
 import android.net.ipsec.ike.IkeFqdnIdentification;
 import android.net.ipsec.ike.IkeSaProposal;
@@ -56,20 +51,13 @@
                         .addPseudorandomFunction(PSEUDORANDOM_FUNCTION_AES128_XCBC)
                         .build();
 
-        Context mockContext = mock(Context.class);
-        ConnectivityManager mockConnectManager = mock(ConnectivityManager.class);
-        doReturn(mockConnectManager)
-                .when(mockContext)
-                .getSystemService(Context.CONNECTIVITY_SERVICE);
-        doReturn(mock(Network.class)).when(mockConnectManager).getActiveNetwork();
-
         final String serverHostname = "192.0.2.100";
         final String testLocalId = "test.client.com";
         final String testRemoteId = "test.server.com";
         final byte[] psk = "psk".getBytes();
 
         IKE_PARAMS =
-                new IkeSessionParams.Builder(mockContext)
+                new IkeSessionParams.Builder()
                         .setServerHostname(serverHostname)
                         .addSaProposal(ikeProposal)
                         .setLocalIdentification(new IkeFqdnIdentification(testLocalId))
diff --git a/tests/vcn/java/com/android/server/VcnManagementServiceTest.java b/tests/vcn/java/com/android/server/VcnManagementServiceTest.java
index c88b0c1..bbc9bb6 100644
--- a/tests/vcn/java/com/android/server/VcnManagementServiceTest.java
+++ b/tests/vcn/java/com/android/server/VcnManagementServiceTest.java
@@ -16,9 +16,13 @@
 
 package com.android.server;
 
+import static android.net.ConnectivityManager.NetworkCallback;
+import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_VCN_MANAGED;
 import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
 import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
+import static android.net.vcn.VcnManager.VCN_STATUS_CODE_ACTIVE;
+import static android.net.vcn.VcnManager.VCN_STATUS_CODE_SAFE_MODE;
 import static android.telephony.TelephonyManager.CARRIER_PRIVILEGE_STATUS_HAS_ACCESS;
 import static android.telephony.TelephonyManager.CARRIER_PRIVILEGE_STATUS_NO_ACCESS;
 
@@ -53,8 +57,10 @@
 import android.content.Intent;
 import android.net.ConnectivityManager;
 import android.net.LinkProperties;
+import android.net.Network;
 import android.net.NetworkCapabilities;
 import android.net.NetworkCapabilities.Transport;
+import android.net.NetworkRequest;
 import android.net.TelephonyNetworkSpecifier;
 import android.net.vcn.IVcnStatusCallback;
 import android.net.vcn.IVcnUnderlyingNetworkPolicyListener;
@@ -75,7 +81,6 @@
 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
 
-import com.android.net.module.util.LocationPermissionChecker;
 import com.android.server.VcnManagementService.VcnCallback;
 import com.android.server.VcnManagementService.VcnStatusCallbackInfo;
 import com.android.server.vcn.TelephonySubscriptionTracker;
@@ -156,8 +161,6 @@
             mock(PersistableBundleUtils.LockingReadWriteHelper.class);
     private final TelephonySubscriptionTracker mSubscriptionTracker =
             mock(TelephonySubscriptionTracker.class);
-    private final LocationPermissionChecker mLocationPermissionChecker =
-            mock(LocationPermissionChecker.class);
 
     private final ArgumentCaptor<VcnCallback> mVcnCallbackCaptor =
             ArgumentCaptor.forClass(VcnCallback.class);
@@ -201,9 +204,6 @@
         doReturn(mConfigReadWriteHelper)
                 .when(mMockDeps)
                 .newPersistableBundleLockingReadWriteHelper(any());
-        doReturn(mLocationPermissionChecker)
-                .when(mMockDeps)
-                .newLocationPermissionChecker(eq(mMockContext));
 
         // Setup VCN instance generation
         doAnswer((invocation) -> {
@@ -256,6 +256,10 @@
 
         verify(mConnMgr).registerNetworkProvider(any(VcnNetworkProvider.class));
         verify(mSubscriptionTracker).register();
+        verify(mConnMgr)
+                .registerNetworkCallback(
+                        eq(new NetworkRequest.Builder().clearCapabilities().build()),
+                        any(NetworkCallback.class));
     }
 
     @Test
@@ -511,10 +515,6 @@
 
     @Test
     public void testSetVcnConfigNotifiesStatusCallback() throws Exception {
-        mVcnMgmtSvc.systemReady();
-        doReturn(true)
-                .when(mLocationPermissionChecker)
-                .checkLocationPermission(eq(TEST_PACKAGE_NAME), any(), eq(TEST_UID), any());
         triggerSubscriptionTrackerCbAndGetSnapshot(Collections.singleton(TEST_UUID_2));
 
         mVcnMgmtSvc.registerVcnStatusCallback(TEST_UUID_2, mMockStatusCallback, TEST_PACKAGE_NAME);
@@ -527,17 +527,6 @@
     }
 
     @Test
-    public void testSetVcnConfigInSafeModeNotifiesStatusCallback() throws Exception {
-        setupSubscriptionAndStartVcn(TEST_SUBSCRIPTION_ID, TEST_UUID_2, false /* isActive */);
-        mVcnMgmtSvc.registerVcnStatusCallback(TEST_UUID_2, mMockStatusCallback, TEST_PACKAGE_NAME);
-        verify(mMockStatusCallback).onVcnStatusChanged(VcnManager.VCN_STATUS_CODE_SAFE_MODE);
-
-        mVcnMgmtSvc.setVcnConfig(TEST_UUID_2, TEST_VCN_CONFIG, TEST_PACKAGE_NAME);
-
-        verify(mMockStatusCallback).onVcnStatusChanged(VcnManager.VCN_STATUS_CODE_ACTIVE);
-    }
-
-    @Test
     public void testClearVcnConfigRequiresNonSystemServer() throws Exception {
         doReturn(Process.SYSTEM_UID).when(mMockDeps).getBinderCallingUid();
 
@@ -695,17 +684,13 @@
                 hasCarrierPrivileges);
 
         final Vcn vcn = startAndGetVcnInstance(subGrp);
-        doReturn(isVcnActive).when(vcn).isActive();
-
-        doReturn(true)
-                .when(mLocationPermissionChecker)
-                .checkLocationPermission(eq(TEST_PACKAGE_NAME), any(), eq(TEST_UID), any());
+        doReturn(isVcnActive ? VCN_STATUS_CODE_ACTIVE : VCN_STATUS_CODE_SAFE_MODE)
+                .when(vcn)
+                .getStatus();
     }
 
-    private VcnUnderlyingNetworkPolicy startVcnAndGetPolicyForTransport(
-            int subId, ParcelUuid subGrp, boolean isVcnActive, int transport) {
-        setupSubscriptionAndStartVcn(subId, subGrp, isVcnActive);
-
+    private NetworkCapabilities.Builder getNetworkCapabilitiesBuilderForTransport(
+            int subId, int transport) {
         final NetworkCapabilities.Builder ncBuilder =
                 new NetworkCapabilities.Builder()
                         .addCapability(NET_CAPABILITY_NOT_VCN_MANAGED)
@@ -714,7 +699,16 @@
             ncBuilder.setSubIds(Collections.singleton(subId));
         }
 
-        return mVcnMgmtSvc.getUnderlyingNetworkPolicy(ncBuilder.build(), new LinkProperties());
+        return ncBuilder;
+    }
+
+    private VcnUnderlyingNetworkPolicy startVcnAndGetPolicyForTransport(
+            int subId, ParcelUuid subGrp, boolean isVcnActive, int transport) {
+        setupSubscriptionAndStartVcn(subId, subGrp, isVcnActive);
+
+        return mVcnMgmtSvc.getUnderlyingNetworkPolicy(
+                getNetworkCapabilitiesBuilderForTransport(subId, transport).build(),
+                new LinkProperties());
     }
 
     @Test
@@ -776,6 +770,53 @@
                 true /* isRestricted */);
     }
 
+    private void setupTrackedCarrierWifiNetwork(NetworkCapabilities caps) {
+        mVcnMgmtSvc.systemReady();
+
+        final ArgumentCaptor<NetworkCallback> captor =
+                ArgumentCaptor.forClass(NetworkCallback.class);
+        verify(mConnMgr)
+                .registerNetworkCallback(
+                        eq(new NetworkRequest.Builder().clearCapabilities().build()),
+                        captor.capture());
+        captor.getValue().onCapabilitiesChanged(new Network(0), caps);
+    }
+
+    @Test
+    public void testGetUnderlyingNetworkPolicyVcnWifi_unrestrictingExistingNetworkRequiresRestart()
+            throws Exception {
+        final NetworkCapabilities existingNetworkCaps =
+                getNetworkCapabilitiesBuilderForTransport(TEST_SUBSCRIPTION_ID, TRANSPORT_WIFI)
+                        .removeCapability(NET_CAPABILITY_NOT_RESTRICTED)
+                        .build();
+        setupTrackedCarrierWifiNetwork(existingNetworkCaps);
+
+        // Trigger test without VCN instance alive; expect restart due to change of NOT_RESTRICTED
+        // immutable capability
+        final VcnUnderlyingNetworkPolicy policy =
+                mVcnMgmtSvc.getUnderlyingNetworkPolicy(
+                        getNetworkCapabilitiesBuilderForTransport(
+                                        TEST_SUBSCRIPTION_ID, TRANSPORT_WIFI)
+                                .build(),
+                        new LinkProperties());
+        assertTrue(policy.isTeardownRequested());
+    }
+
+    @Test
+    public void testGetUnderlyingNetworkPolicyVcnWifi_restrictingExistingNetworkRequiresRestart()
+            throws Exception {
+        final NetworkCapabilities existingNetworkCaps =
+                getNetworkCapabilitiesBuilderForTransport(TEST_SUBSCRIPTION_ID, TRANSPORT_WIFI)
+                        .build();
+        setupTrackedCarrierWifiNetwork(existingNetworkCaps);
+
+        final VcnUnderlyingNetworkPolicy policy =
+                startVcnAndGetPolicyForTransport(
+                        TEST_SUBSCRIPTION_ID, TEST_UUID_2, false /* isActive */, TRANSPORT_WIFI);
+
+        assertTrue(policy.isTeardownRequested());
+    }
+
     @Test
     public void testGetUnderlyingNetworkPolicyNonVcnNetwork() throws Exception {
         setupSubscriptionAndStartVcn(TEST_SUBSCRIPTION_ID, TEST_UUID_1, true /* isActive */);
@@ -836,7 +877,9 @@
     }
 
     private void triggerVcnSafeMode(
-            @NonNull ParcelUuid subGroup, @NonNull TelephonySubscriptionSnapshot snapshot)
+            @NonNull ParcelUuid subGroup,
+            @NonNull TelephonySubscriptionSnapshot snapshot,
+            boolean isInSafeMode)
             throws Exception {
         verify(mMockDeps)
                 .newVcn(
@@ -847,27 +890,36 @@
                         mVcnCallbackCaptor.capture());
 
         VcnCallback vcnCallback = mVcnCallbackCaptor.getValue();
-        vcnCallback.onEnteredSafeMode();
+        vcnCallback.onSafeModeStatusChanged(isInSafeMode);
     }
 
-    @Test
-    public void testVcnEnteringSafeModeNotifiesPolicyListeners() throws Exception {
+    private void verifyVcnSafeModeChangesNotifiesPolicyListeners(boolean enterSafeMode)
+            throws Exception {
         TelephonySubscriptionSnapshot snapshot =
                 triggerSubscriptionTrackerCbAndGetSnapshot(Collections.singleton(TEST_UUID_1));
 
         mVcnMgmtSvc.addVcnUnderlyingNetworkPolicyListener(mMockPolicyListener);
 
-        triggerVcnSafeMode(TEST_UUID_1, snapshot);
+        triggerVcnSafeMode(TEST_UUID_1, snapshot, enterSafeMode);
 
         verify(mMockPolicyListener).onPolicyChanged();
     }
 
-    private void triggerVcnStatusCallbackOnEnteredSafeMode(
+    @Test
+    public void testVcnEnteringSafeModeNotifiesPolicyListeners() throws Exception {
+        verifyVcnSafeModeChangesNotifiesPolicyListeners(true /* enterSafeMode */);
+    }
+
+    @Test
+    public void testVcnExitingSafeModeNotifiesPolicyListeners() throws Exception {
+        verifyVcnSafeModeChangesNotifiesPolicyListeners(false /* enterSafeMode */);
+    }
+
+    private void triggerVcnStatusCallbackOnSafeModeStatusChanged(
             @NonNull ParcelUuid subGroup,
             @NonNull String pkgName,
             int uid,
-            boolean hasPermissionsforSubGroup,
-            boolean hasLocationPermission)
+            boolean hasPermissionsforSubGroup)
             throws Exception {
         TelephonySubscriptionSnapshot snapshot =
                 triggerSubscriptionTrackerCbAndGetSnapshot(Collections.singleton(subGroup));
@@ -879,48 +931,25 @@
                 .when(snapshot)
                 .packageHasPermissionsForSubscriptionGroup(eq(subGroup), eq(pkgName));
 
-        doReturn(hasLocationPermission)
-                .when(mLocationPermissionChecker)
-                .checkLocationPermission(eq(pkgName), any(), eq(uid), any());
-
         mVcnMgmtSvc.registerVcnStatusCallback(subGroup, mMockStatusCallback, pkgName);
 
-        triggerVcnSafeMode(subGroup, snapshot);
+        triggerVcnSafeMode(subGroup, snapshot, true /* enterSafeMode */);
     }
 
     @Test
-    public void testVcnStatusCallbackOnEnteredSafeModeWithCarrierPrivileges() throws Exception {
-        triggerVcnStatusCallbackOnEnteredSafeMode(
-                TEST_UUID_1,
-                TEST_PACKAGE_NAME,
-                TEST_UID,
-                true /* hasPermissionsforSubGroup */,
-                true /* hasLocationPermission */);
+    public void testVcnStatusCallbackOnSafeModeStatusChangedWithCarrierPrivileges()
+            throws Exception {
+        triggerVcnStatusCallbackOnSafeModeStatusChanged(
+                TEST_UUID_1, TEST_PACKAGE_NAME, TEST_UID, true /* hasPermissionsforSubGroup */);
 
         verify(mMockStatusCallback).onVcnStatusChanged(VcnManager.VCN_STATUS_CODE_SAFE_MODE);
     }
 
     @Test
-    public void testVcnStatusCallbackOnEnteredSafeModeWithoutCarrierPrivileges() throws Exception {
-        triggerVcnStatusCallbackOnEnteredSafeMode(
-                TEST_UUID_1,
-                TEST_PACKAGE_NAME,
-                TEST_UID,
-                false /* hasPermissionsforSubGroup */,
-                true /* hasLocationPermission */);
-
-        verify(mMockStatusCallback, never())
-                .onVcnStatusChanged(VcnManager.VCN_STATUS_CODE_SAFE_MODE);
-    }
-
-    @Test
-    public void testVcnStatusCallbackOnEnteredSafeModeWithoutLocationPermission() throws Exception {
-        triggerVcnStatusCallbackOnEnteredSafeMode(
-                TEST_UUID_1,
-                TEST_PACKAGE_NAME,
-                TEST_UID,
-                true /* hasPermissionsforSubGroup */,
-                false /* hasLocationPermission */);
+    public void testVcnStatusCallbackOnSafeModeStatusChangedWithoutCarrierPrivileges()
+            throws Exception {
+        triggerVcnStatusCallbackOnSafeModeStatusChanged(
+                TEST_UUID_1, TEST_PACKAGE_NAME, TEST_UID, false /* hasPermissionsforSubGroup */);
 
         verify(mMockStatusCallback, never())
                 .onVcnStatusChanged(VcnManager.VCN_STATUS_CODE_SAFE_MODE);
@@ -982,9 +1011,6 @@
                 .when(snapshot)
                 .packageHasPermissionsForSubscriptionGroup(
                         eq(TEST_UUID_1), eq(TEST_CB_PACKAGE_NAME));
-        doReturn(true)
-                .when(mLocationPermissionChecker)
-                .checkLocationPermission(eq(TEST_CB_PACKAGE_NAME), any(), eq(TEST_UID), any());
 
         mVcnMgmtSvc.registerVcnStatusCallback(
                 TEST_UUID_1, mMockStatusCallback, TEST_CB_PACKAGE_NAME);
diff --git a/tests/vcn/java/com/android/server/vcn/UnderlyingNetworkTrackerTest.java b/tests/vcn/java/com/android/server/vcn/UnderlyingNetworkTrackerTest.java
index ed2e4d9..0c7363e 100644
--- a/tests/vcn/java/com/android/server/vcn/UnderlyingNetworkTrackerTest.java
+++ b/tests/vcn/java/com/android/server/vcn/UnderlyingNetworkTrackerTest.java
@@ -153,21 +153,19 @@
         verify(mConnectivityManager)
                 .requestBackgroundNetwork(
                         eq(getWifiRequest(expectedSubIds)),
-                        any(),
-                        any(NetworkBringupCallback.class));
+                        any(NetworkBringupCallback.class),
+                        any());
         for (final int subId : expectedSubIds) {
             verify(mConnectivityManager)
                     .requestBackgroundNetwork(
-                            eq(getCellRequestForSubId(subId, expectedSubIds)),
-                            any(),
-                            any(NetworkBringupCallback.class));
+                            eq(getCellRequestForSubId(subId)),
+                            any(NetworkBringupCallback.class), any());
         }
 
         verify(mConnectivityManager)
                 .requestBackgroundNetwork(
                         eq(getRouteSelectionRequest(expectedSubIds)),
-                        any(),
-                        any(RouteSelectionCallback.class));
+                        any(RouteSelectionCallback.class), any());
     }
 
     @Test
@@ -189,30 +187,30 @@
     }
 
     private NetworkRequest getWifiRequest(Set<Integer> netCapsSubIds) {
-        return getExpectedRequestBase(netCapsSubIds)
+        return getExpectedRequestBase()
                 .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
+                .setSubIds(netCapsSubIds)
                 .build();
     }
 
-    private NetworkRequest getCellRequestForSubId(int subId, Set<Integer> netCapsSubIds) {
-        return getExpectedRequestBase(netCapsSubIds)
+    private NetworkRequest getCellRequestForSubId(int subId) {
+        return getExpectedRequestBase()
                 .addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR)
                 .setNetworkSpecifier(new TelephonyNetworkSpecifier(subId))
                 .build();
     }
 
     private NetworkRequest getRouteSelectionRequest(Set<Integer> netCapsSubIds) {
-        return getExpectedRequestBase(netCapsSubIds).build();
+        return getExpectedRequestBase().setSubIds(netCapsSubIds).build();
     }
 
-    private NetworkRequest.Builder getExpectedRequestBase(Set<Integer> subIds) {
+    private NetworkRequest.Builder getExpectedRequestBase() {
         final NetworkRequest.Builder builder =
                 new NetworkRequest.Builder()
                         .addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
                         .removeCapability(NetworkCapabilities.NET_CAPABILITY_TRUSTED)
                         .removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED)
-                        .removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VCN_MANAGED)
-                        .setSubIds(subIds);
+                        .removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_VCN_MANAGED);
 
         return builder;
     }
@@ -267,8 +265,8 @@
         verify(mConnectivityManager)
                 .requestBackgroundNetwork(
                         eq(getRouteSelectionRequest(INITIAL_SUB_IDS)),
-                        any(),
-                        mRouteSelectionCallbackCaptor.capture());
+                        mRouteSelectionCallbackCaptor.capture(),
+                        any());
 
         RouteSelectionCallback cb = mRouteSelectionCallbackCaptor.getValue();
         cb.onAvailable(mNetwork);
diff --git a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionConnectedStateTest.java b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionConnectedStateTest.java
index 2fadd44..a2223e8 100644
--- a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionConnectedStateTest.java
+++ b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionConnectedStateTest.java
@@ -20,18 +20,22 @@
 import static android.net.IpSecManager.DIRECTION_OUT;
 import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
 import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
+import static android.net.ipsec.ike.exceptions.IkeProtocolException.ERROR_TYPE_AUTHENTICATION_FAILED;
+import static android.net.ipsec.ike.exceptions.IkeProtocolException.ERROR_TYPE_TEMPORARY_FAILURE;
 import static android.net.vcn.VcnManager.VCN_ERROR_CODE_CONFIG_ERROR;
 import static android.net.vcn.VcnManager.VCN_ERROR_CODE_INTERNAL_ERROR;
 import static android.net.vcn.VcnManager.VCN_ERROR_CODE_NETWORK_ERROR;
 
 import static com.android.server.vcn.VcnGatewayConnection.VcnChildSessionConfiguration;
 import static com.android.server.vcn.VcnGatewayConnection.VcnIkeSession;
+import static com.android.server.vcn.VcnGatewayConnection.VcnNetworkAgent;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Matchers.any;
 import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.argThat;
 import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
@@ -39,38 +43,54 @@
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoMoreInteractions;
+import static org.mockito.Mockito.when;
 
+import android.net.ConnectivityManager;
+import android.net.LinkAddress;
 import android.net.LinkProperties;
 import android.net.NetworkAgent;
 import android.net.NetworkCapabilities;
-import android.net.ipsec.ike.exceptions.AuthenticationFailedException;
+import android.net.ipsec.ike.ChildSaProposal;
 import android.net.ipsec.ike.exceptions.IkeException;
 import android.net.ipsec.ike.exceptions.IkeInternalException;
-import android.net.ipsec.ike.exceptions.TemporaryFailureException;
+import android.net.ipsec.ike.exceptions.IkeProtocolException;
+import android.net.vcn.VcnControlPlaneIkeConfig;
 import android.net.vcn.VcnManager.VcnErrorCode;
 
 import androidx.test.filters.SmallTest;
 import androidx.test.runner.AndroidJUnit4;
 
+import com.android.server.vcn.util.MtuUtils;
+
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.ArgumentCaptor;
 
 import java.io.IOException;
+import java.net.InetAddress;
 import java.net.UnknownHostException;
+import java.util.Arrays;
 import java.util.Collections;
+import java.util.List;
+import java.util.function.Consumer;
 
 /** Tests for VcnGatewayConnection.ConnectedState */
 @RunWith(AndroidJUnit4.class)
 @SmallTest
 public class VcnGatewayConnectionConnectedStateTest extends VcnGatewayConnectionTestBase {
     private VcnIkeSession mIkeSession;
+    private VcnNetworkAgent mNetworkAgent;
 
     @Before
     public void setUp() throws Exception {
         super.setUp();
 
+        mNetworkAgent = mock(VcnNetworkAgent.class);
+        doReturn(mNetworkAgent)
+                .when(mDeps)
+                .newNetworkAgent(any(), any(), any(), any(), anyInt(), any(), any(), any(), any());
+
         mGatewayConnection.setUnderlyingNetwork(TEST_UNDERLYING_NETWORK_RECORD_1);
 
         mIkeSession = mGatewayConnection.buildIkeSession(TEST_UNDERLYING_NETWORK_RECORD_1.network);
@@ -139,7 +159,9 @@
     }
 
     @Test
-    public void testMigratedTransformsAreApplied() throws Exception {
+    public void testMigration() throws Exception {
+        triggerChildOpened();
+
         getChildSessionCallback()
                 .onIpSecTransformsMigrated(makeDummyIpSecTransform(), makeDummyIpSecTransform());
         mTestLooper.dispatchAll();
@@ -157,23 +179,57 @@
         }
 
         assertEquals(mGatewayConnection.mConnectedState, mGatewayConnection.getCurrentState());
+
+        final List<ChildSaProposal> saProposals =
+                ((VcnControlPlaneIkeConfig) mConfig.getControlPlaneConfig())
+                        .getChildSessionParams()
+                        .getSaProposals();
+        final int expectedMtu =
+                MtuUtils.getMtu(
+                        saProposals,
+                        mConfig.getMaxMtu(),
+                        TEST_UNDERLYING_NETWORK_RECORD_1.linkProperties.getMtu());
+        verify(mNetworkAgent).sendLinkProperties(argThat(lp -> expectedMtu == lp.getMtu()));
+    }
+
+    private void triggerChildOpened() {
+        triggerChildOpened(Collections.singletonList(TEST_INTERNAL_ADDR), TEST_DNS_ADDR);
+    }
+
+    private void triggerChildOpened(List<LinkAddress> internalAddresses, InetAddress dnsAddress) {
+        final VcnChildSessionConfiguration mMockChildSessionConfig =
+                mock(VcnChildSessionConfiguration.class);
+        doReturn(internalAddresses).when(mMockChildSessionConfig).getInternalAddresses();
+        doReturn(Collections.singletonList(dnsAddress))
+                .when(mMockChildSessionConfig)
+                .getInternalDnsServers();
+
+        getChildSessionCallback().onOpened(mMockChildSessionConfig);
+    }
+
+    private void triggerValidation(int status) {
+        final ArgumentCaptor<Consumer<Integer>> validationCallbackCaptor =
+                ArgumentCaptor.forClass(Consumer.class);
+        verify(mDeps)
+                .newNetworkAgent(
+                        any(),
+                        any(),
+                        any(),
+                        any(),
+                        anyInt(),
+                        any(),
+                        any(),
+                        any(),
+                        validationCallbackCaptor.capture());
+
+        validationCallbackCaptor.getValue().accept(status);
     }
 
     @Test
     public void testChildOpenedRegistersNetwork() throws Exception {
         // Verify scheduled but not canceled when entering ConnectedState
         verifySafeModeTimeoutAlarmAndGetCallback(false /* expectCanceled */);
-
-        final VcnChildSessionConfiguration mMockChildSessionConfig =
-                mock(VcnChildSessionConfiguration.class);
-        doReturn(Collections.singletonList(TEST_INTERNAL_ADDR))
-                .when(mMockChildSessionConfig)
-                .getInternalAddresses();
-        doReturn(Collections.singletonList(TEST_DNS_ADDR))
-                .when(mMockChildSessionConfig)
-                .getInternalDnsServers();
-
-        getChildSessionCallback().onOpened(mMockChildSessionConfig);
+        triggerChildOpened();
         mTestLooper.dispatchAll();
 
         assertEquals(mGatewayConnection.mConnectedState, mGatewayConnection.getCurrentState());
@@ -182,15 +238,20 @@
                 ArgumentCaptor.forClass(LinkProperties.class);
         final ArgumentCaptor<NetworkCapabilities> ncCaptor =
                 ArgumentCaptor.forClass(NetworkCapabilities.class);
-        verify(mConnMgr)
-                .registerNetworkAgent(
-                        any(),
-                        any(),
-                        lpCaptor.capture(),
+        verify(mDeps)
+                .newNetworkAgent(
+                        eq(mVcnContext),
+                        any(String.class),
                         ncCaptor.capture(),
+                        lpCaptor.capture(),
+                        anyInt(),
+                        argThat(nac -> nac.getLegacyType() == ConnectivityManager.TYPE_MOBILE),
                         any(),
                         any(),
-                        anyInt());
+                        any());
+        verify(mNetworkAgent).register();
+        verify(mNetworkAgent).markConnected();
+
         verify(mIpSecSvc)
                 .addAddressToTunnelInterface(
                         eq(TEST_IPSEC_TUNNEL_RESOURCE_ID), eq(TEST_INTERNAL_ADDR), any());
@@ -208,9 +269,139 @@
 
         // Now that Vcn Network is up, notify it as validated and verify the SafeMode alarm is
         // canceled
-        mGatewayConnection.mNetworkAgent.onValidationStatus(
-                NetworkAgent.VALIDATION_STATUS_VALID, null /* redirectUri */);
+        triggerValidation(NetworkAgent.VALIDATION_STATUS_VALID);
         verify(mSafeModeTimeoutAlarm).cancel();
+        assertFalse(mGatewayConnection.isInSafeMode());
+    }
+
+    @Test
+    public void testInternalAndDnsAddressesChanged() throws Exception {
+        final List<LinkAddress> startingInternalAddrs =
+                Arrays.asList(new LinkAddress[] {TEST_INTERNAL_ADDR, TEST_INTERNAL_ADDR_2});
+        triggerChildOpened(startingInternalAddrs, TEST_DNS_ADDR);
+        mTestLooper.dispatchAll();
+
+        for (LinkAddress addr : startingInternalAddrs) {
+            verify(mIpSecSvc)
+                    .addAddressToTunnelInterface(
+                            eq(TEST_IPSEC_TUNNEL_RESOURCE_ID), eq(addr), any());
+        }
+
+        verify(mDeps)
+                .newNetworkAgent(
+                        any(),
+                        any(),
+                        any(),
+                        argThat(
+                                lp ->
+                                        startingInternalAddrs.equals(lp.getLinkAddresses())
+                                                && Collections.singletonList(TEST_DNS_ADDR)
+                                                        .equals(lp.getDnsServers())),
+                        anyInt(),
+                        any(),
+                        any(),
+                        any(),
+                        any());
+
+        // Trigger another connection event, and verify that the addresses change
+        final List<LinkAddress> newInternalAddrs =
+                Arrays.asList(new LinkAddress[] {TEST_INTERNAL_ADDR_2, TEST_INTERNAL_ADDR_3});
+        triggerChildOpened(newInternalAddrs, TEST_DNS_ADDR_2);
+        mTestLooper.dispatchAll();
+
+        // Verify addresses on tunnel network added/removed
+        for (LinkAddress addr : newInternalAddrs) {
+            verify(mIpSecSvc)
+                    .addAddressToTunnelInterface(
+                            eq(TEST_IPSEC_TUNNEL_RESOURCE_ID), eq(addr), any());
+        }
+        verify(mIpSecSvc)
+                .removeAddressFromTunnelInterface(
+                        eq(TEST_IPSEC_TUNNEL_RESOURCE_ID), eq(TEST_INTERNAL_ADDR), any());
+
+        verify(mNetworkAgent).sendLinkProperties(argThat(
+                lp -> newInternalAddrs.equals(lp.getLinkAddresses())
+                        && Collections.singletonList(TEST_DNS_ADDR_2).equals(lp.getDnsServers())));
+
+        // Verify that IpSecTunnelInterface only created once
+        verify(mIpSecSvc).createTunnelInterface(any(), any(), any(), any(), any());
+        verifyNoMoreInteractions(mIpSecSvc);
+    }
+
+    @Test
+    public void testSuccessfulConnectionExitsSafeMode() throws Exception {
+        verifySafeModeTimeoutNotifiesCallbackAndUnregistersNetworkAgent(
+                mGatewayConnection.mConnectedState);
+
+        assertTrue(mGatewayConnection.isInSafeMode());
+        assertFalse(mGatewayConnection.isQuitting());
+
+        triggerChildOpened();
+        mTestLooper.dispatchAll();
+
+        triggerValidation(NetworkAgent.VALIDATION_STATUS_VALID);
+
+        assertFalse(mGatewayConnection.isInSafeMode());
+    }
+
+    private Consumer<VcnNetworkAgent> setupNetworkAndGetUnwantedCallback() {
+        triggerChildOpened();
+        mTestLooper.dispatchAll();
+
+        final ArgumentCaptor<Consumer<VcnNetworkAgent>> unwantedCallbackCaptor =
+                ArgumentCaptor.forClass(Consumer.class);
+        verify(mDeps)
+                .newNetworkAgent(
+                        any(),
+                        any(),
+                        any(),
+                        any(),
+                        anyInt(),
+                        any(),
+                        any(),
+                        unwantedCallbackCaptor.capture(),
+                        any());
+
+        return unwantedCallbackCaptor.getValue();
+    }
+
+    @Test
+    public void testUnwantedNetworkAgentTriggersTeardown() throws Exception {
+        final Consumer<VcnNetworkAgent> unwantedCallback = setupNetworkAndGetUnwantedCallback();
+
+        unwantedCallback.accept(mNetworkAgent);
+        mTestLooper.dispatchAll();
+
+        assertTrue(mGatewayConnection.isQuitting());
+        assertEquals(mGatewayConnection.mDisconnectingState, mGatewayConnection.getCurrentState());
+    }
+
+    @Test
+    public void testUnwantedNetworkAgentWithDisconnectedNetworkAgent() throws Exception {
+        final Consumer<VcnNetworkAgent> unwantedCallback = setupNetworkAndGetUnwantedCallback();
+
+        mGatewayConnection.setNetworkAgent(null);
+        unwantedCallback.accept(mNetworkAgent);
+        mTestLooper.dispatchAll();
+
+        // Verify that the call was ignored; the state machine is still running, and the state has
+        // not changed.
+        assertFalse(mGatewayConnection.isQuitting());
+        assertEquals(mGatewayConnection.mConnectedState, mGatewayConnection.getCurrentState());
+    }
+
+    @Test
+    public void testUnwantedNetworkAgentWithNewNetworkAgent() throws Exception {
+        final Consumer<VcnNetworkAgent> unwantedCallback = setupNetworkAndGetUnwantedCallback();
+        final VcnNetworkAgent testAgent = mock(VcnNetworkAgent.class);
+
+        mGatewayConnection.setNetworkAgent(testAgent);
+        unwantedCallback.accept(mNetworkAgent);
+        mTestLooper.dispatchAll();
+
+        assertFalse(mGatewayConnection.isQuitting());
+        assertEquals(mGatewayConnection.mConnectedState, mGatewayConnection.getCurrentState());
+        assertEquals(testAgent, mGatewayConnection.getNetworkAgent());
     }
 
     @Test
@@ -281,10 +472,17 @@
                         any());
     }
 
+    private static IkeProtocolException buildMockIkeProtocolException(int errorCode) {
+        final IkeProtocolException exception = mock(IkeProtocolException.class);
+        when(exception.getErrorType()).thenReturn(errorCode);
+        return exception;
+    }
+
     @Test
     public void testIkeSessionClosedExceptionallyAuthenticationFailure() throws Exception {
         verifyIkeSessionClosedExceptionalltyNotifiesStatusCallback(
-                new AuthenticationFailedException("vcn test"), VCN_ERROR_CODE_CONFIG_ERROR);
+                buildMockIkeProtocolException(ERROR_TYPE_AUTHENTICATION_FAILED),
+                VCN_ERROR_CODE_CONFIG_ERROR);
     }
 
     @Test
@@ -296,7 +494,8 @@
     @Test
     public void testIkeSessionClosedExceptionallyInternalFailure() throws Exception {
         verifyIkeSessionClosedExceptionalltyNotifiesStatusCallback(
-                new TemporaryFailureException("vcn test"), VCN_ERROR_CODE_INTERNAL_ERROR);
+                buildMockIkeProtocolException(ERROR_TYPE_TEMPORARY_FAILURE),
+                VCN_ERROR_CODE_INTERNAL_ERROR);
     }
 
     @Test
diff --git a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionConnectingStateTest.java b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionConnectingStateTest.java
index 7afa449..acc8bf9 100644
--- a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionConnectingStateTest.java
+++ b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionConnectingStateTest.java
@@ -58,8 +58,7 @@
                 ArgumentCaptor.forClass(IkeSessionParams.class);
         verify(mDeps).newIkeSession(any(), paramsCaptor.capture(), any(), any(), any());
         assertEquals(
-                TEST_UNDERLYING_NETWORK_RECORD_1.network,
-                paramsCaptor.getValue().getConfiguredNetwork());
+                TEST_UNDERLYING_NETWORK_RECORD_1.network, paramsCaptor.getValue().getNetwork());
     }
 
     @Test
@@ -118,8 +117,9 @@
     }
 
     @Test
-    public void testSafeModeTimeoutNotifiesCallback() {
-        verifySafeModeTimeoutNotifiesCallback(mGatewayConnection.mConnectingState);
+    public void testSafeModeTimeoutNotifiesCallbackAndUnregistersNetworkAgent() {
+        verifySafeModeTimeoutNotifiesCallbackAndUnregistersNetworkAgent(
+                mGatewayConnection.mConnectingState);
     }
 
     @Test
diff --git a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionDisconnectingStateTest.java b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionDisconnectingStateTest.java
index 99feffd..9da8b45 100644
--- a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionDisconnectingStateTest.java
+++ b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionDisconnectingStateTest.java
@@ -86,8 +86,9 @@
     }
 
     @Test
-    public void testSafeModeTimeoutNotifiesCallback() {
-        verifySafeModeTimeoutNotifiesCallback(mGatewayConnection.mDisconnectingState);
+    public void testSafeModeTimeoutNotifiesCallbackAndUnregistersNetworkAgent() {
+        verifySafeModeTimeoutNotifiesCallbackAndUnregistersNetworkAgent(
+                mGatewayConnection.mDisconnectingState);
     }
 
     @Test
diff --git a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionRetryTimeoutStateTest.java b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionRetryTimeoutStateTest.java
index 85a0277..6dbf7d5 100644
--- a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionRetryTimeoutStateTest.java
+++ b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionRetryTimeoutStateTest.java
@@ -96,8 +96,9 @@
     }
 
     @Test
-    public void testSafeModeTimeoutNotifiesCallback() {
-        verifySafeModeTimeoutNotifiesCallback(mGatewayConnection.mRetryTimeoutState);
+    public void testSafeModeTimeoutNotifiesCallbackAndUnregistersNetworkAgent() {
+        verifySafeModeTimeoutNotifiesCallbackAndUnregistersNetworkAgent(
+                mGatewayConnection.mRetryTimeoutState);
     }
 
     @Test
diff --git a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTestBase.java b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTestBase.java
index a660735..dc73be2 100644
--- a/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTestBase.java
+++ b/tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTestBase.java
@@ -18,9 +18,12 @@
 
 import static com.android.server.vcn.UnderlyingNetworkTracker.UnderlyingNetworkRecord;
 import static com.android.server.vcn.VcnGatewayConnection.VcnIkeSession;
+import static com.android.server.vcn.VcnGatewayConnection.VcnNetworkAgent;
 import static com.android.server.vcn.VcnTestUtils.setupIpSecManager;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
 import static org.mockito.Matchers.any;
 import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.atLeastOnce;
@@ -71,8 +74,14 @@
     protected static final ParcelUuid TEST_SUB_GRP = new ParcelUuid(UUID.randomUUID());
     protected static final InetAddress TEST_DNS_ADDR =
             InetAddresses.parseNumericAddress("2001:DB8:0:1::");
+    protected static final InetAddress TEST_DNS_ADDR_2 =
+            InetAddresses.parseNumericAddress("2001:DB8:0:2::");
     protected static final LinkAddress TEST_INTERNAL_ADDR =
-            new LinkAddress(InetAddresses.parseNumericAddress("2001:DB8:0:2::"), 64);
+            new LinkAddress(InetAddresses.parseNumericAddress("2001:DB8:1:1::"), 64);
+    protected static final LinkAddress TEST_INTERNAL_ADDR_2 =
+            new LinkAddress(InetAddresses.parseNumericAddress("2001:DB8:1:2::"), 64);
+    protected static final LinkAddress TEST_INTERNAL_ADDR_3 =
+            new LinkAddress(InetAddresses.parseNumericAddress("2001:DB8:1:3::"), 64);
 
     protected static final int TEST_IPSEC_SPI_VALUE = 0x1234;
     protected static final int TEST_IPSEC_SPI_RESOURCE_ID = 1;
@@ -81,12 +90,18 @@
     protected static final int TEST_SUB_ID = 5;
     protected static final long ELAPSED_REAL_TIME = 123456789L;
     protected static final String TEST_IPSEC_TUNNEL_IFACE = "IPSEC_IFACE";
+
     protected static final UnderlyingNetworkRecord TEST_UNDERLYING_NETWORK_RECORD_1 =
             new UnderlyingNetworkRecord(
                     new Network(0),
                     new NetworkCapabilities(),
                     new LinkProperties(),
                     false /* blocked */);
+
+    static {
+        TEST_UNDERLYING_NETWORK_RECORD_1.linkProperties.setMtu(1500);
+    }
+
     protected static final UnderlyingNetworkRecord TEST_UNDERLYING_NETWORK_RECORD_2 =
             new UnderlyingNetworkRecord(
                     new Network(1),
@@ -94,6 +109,10 @@
                     new LinkProperties(),
                     false /* blocked */);
 
+    static {
+        TEST_UNDERLYING_NETWORK_RECORD_2.linkProperties.setMtu(1460);
+    }
+
     protected static final TelephonySubscriptionSnapshot TEST_SUBSCRIPTION_SNAPSHOT =
             new TelephonySubscriptionSnapshot(
                     Collections.singletonMap(TEST_SUB_ID, TEST_SUB_GRP), Collections.EMPTY_MAP);
@@ -267,7 +286,12 @@
                 expectCanceled);
     }
 
-    protected void verifySafeModeTimeoutNotifiesCallback(@NonNull State expectedState) {
+    protected void verifySafeModeTimeoutNotifiesCallbackAndUnregistersNetworkAgent(
+            @NonNull State expectedState) {
+        // Set a VcnNetworkAgent, and expect it to be unregistered and cleared
+        final VcnNetworkAgent mockNetworkAgent = mock(VcnNetworkAgent.class);
+        mGatewayConnection.setNetworkAgent(mockNetworkAgent);
+
         // SafeMode timer starts when VcnGatewayConnection exits DisconnectedState (the initial
         // state)
         final Runnable delayedEvent =
@@ -275,7 +299,11 @@
         delayedEvent.run();
         mTestLooper.dispatchAll();
 
-        verify(mGatewayStatusCallback).onEnteredSafeMode();
+        verify(mGatewayStatusCallback).onSafeModeStatusChanged();
         assertEquals(expectedState, mGatewayConnection.getCurrentState());
+        assertTrue(mGatewayConnection.isInSafeMode());
+
+        verify(mockNetworkAgent).unregister();
+        assertNull(mGatewayConnection.getNetworkAgent());
     }
 }
diff --git a/tests/vcn/java/com/android/server/vcn/VcnTest.java b/tests/vcn/java/com/android/server/vcn/VcnTest.java
index 530d834..90eb75e 100644
--- a/tests/vcn/java/com/android/server/vcn/VcnTest.java
+++ b/tests/vcn/java/com/android/server/vcn/VcnTest.java
@@ -19,12 +19,13 @@
 import static android.net.NetworkCapabilities.NET_CAPABILITY_DUN;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET;
 import static android.net.NetworkCapabilities.NET_CAPABILITY_MMS;
+import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
+import static android.net.vcn.VcnManager.VCN_STATUS_CODE_ACTIVE;
+import static android.net.vcn.VcnManager.VCN_STATUS_CODE_SAFE_MODE;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
 import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.argThat;
 import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doReturn;
@@ -52,7 +53,6 @@
 import org.mockito.ArgumentCaptor;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.List;
 import java.util.Set;
 import java.util.UUID;
@@ -134,6 +134,7 @@
     private void startVcnGatewayWithCapabilities(
             NetworkRequestListener requestListener, int... netCapabilities) {
         final NetworkRequest.Builder requestBuilder = new NetworkRequest.Builder();
+        requestBuilder.addTransportType(TRANSPORT_CELLULAR);
         for (final int netCapability : netCapabilities) {
             requestBuilder.addCapability(netCapability);
         }
@@ -142,7 +143,7 @@
         mTestLooper.dispatchAll();
     }
 
-    private void verifyUpdateSubscriptionSnapshotNotifiesConnectionGateways(boolean isActive) {
+    private void verifyUpdateSubscriptionSnapshotNotifiesGatewayConnections(int status) {
         final NetworkRequestListener requestListener = verifyAndGetRequestListener();
         startVcnGatewayWithCapabilities(requestListener, TEST_CAPS[0]);
 
@@ -152,25 +153,24 @@
         final TelephonySubscriptionSnapshot updatedSnapshot =
                 mock(TelephonySubscriptionSnapshot.class);
 
-        mVcn.setIsActive(isActive);
+        mVcn.setStatus(status);
 
         mVcn.updateSubscriptionSnapshot(updatedSnapshot);
         mTestLooper.dispatchAll();
 
         for (final VcnGatewayConnection gateway : gatewayConnections) {
-            verify(gateway, isActive ? times(1) : never())
-                    .updateSubscriptionSnapshot(eq(updatedSnapshot));
+            verify(gateway).updateSubscriptionSnapshot(eq(updatedSnapshot));
         }
     }
 
     @Test
     public void testSubscriptionSnapshotUpdatesVcnGatewayConnections() {
-        verifyUpdateSubscriptionSnapshotNotifiesConnectionGateways(true /* isActive */);
+        verifyUpdateSubscriptionSnapshotNotifiesGatewayConnections(VCN_STATUS_CODE_ACTIVE);
     }
 
     @Test
-    public void testSubscriptionSnapshotUpdatesVcnGatewayConnectionsWhileInactive() {
-        verifyUpdateSubscriptionSnapshotNotifiesConnectionGateways(false /* isActive */);
+    public void testSubscriptionSnapshotUpdatesVcnGatewayConnectionsInSafeMode() {
+        verifyUpdateSubscriptionSnapshotNotifiesGatewayConnections(VCN_STATUS_CODE_SAFE_MODE);
     }
 
     private void triggerVcnRequestListeners(NetworkRequestListener requestListener) {
@@ -200,32 +200,53 @@
 
     private void verifySafeMode(
             NetworkRequestListener requestListener,
-            Set<VcnGatewayConnection> expectedGatewaysTornDown) {
-        assertFalse(mVcn.isActive());
-        for (final VcnGatewayConnection gatewayConnection : expectedGatewaysTornDown) {
-            verify(gatewayConnection).teardownAsynchronously();
+            Set<VcnGatewayConnection> activeGateways,
+            boolean expectInSafeMode) {
+        for (VcnGatewayConnection gatewayConnection : activeGateways) {
+            verify(gatewayConnection, never()).teardownAsynchronously();
         }
-        verify(mVcnNetworkProvider).unregisterListener(requestListener);
-        verify(mVcnCallback).onEnteredSafeMode();
+
+        assertEquals(
+                expectInSafeMode ? VCN_STATUS_CODE_SAFE_MODE : VCN_STATUS_CODE_ACTIVE,
+                mVcn.getStatus());
+        verify(mVcnCallback).onSafeModeStatusChanged(expectInSafeMode);
     }
 
     @Test
-    public void testGatewayEnteringSafeModeNotifiesVcn() {
+    public void testGatewayEnteringAndExitingSafeModeNotifiesVcn() {
         final NetworkRequestListener requestListener = verifyAndGetRequestListener();
         final Set<VcnGatewayConnection> gatewayConnections =
                 startGatewaysAndGetGatewayConnections(requestListener);
 
-        // Doesn't matter which callback this gets - any Gateway entering Safemode should shut down
-        // all Gateways
+        // Doesn't matter which callback this gets, or which VCN is in safe mode - any Gateway
+        // entering Safemode should trigger safe mode
         final VcnGatewayStatusCallback statusCallback = mGatewayStatusCallbackCaptor.getValue();
-        statusCallback.onEnteredSafeMode();
+        final VcnGatewayConnection gatewayConnection = gatewayConnections.iterator().next();
+
+        doReturn(true).when(gatewayConnection).isInSafeMode();
+        statusCallback.onSafeModeStatusChanged();
         mTestLooper.dispatchAll();
 
-        verifySafeMode(requestListener, gatewayConnections);
+        verifySafeMode(requestListener, gatewayConnections, true /* expectInSafeMode */);
+
+        // Verify that when all GatewayConnections exit safe mode, the VCN also exits safe mode
+        doReturn(false).when(gatewayConnection).isInSafeMode();
+        statusCallback.onSafeModeStatusChanged();
+        mTestLooper.dispatchAll();
+
+        verifySafeMode(requestListener, gatewayConnections, false /* expectInSafeMode */);
+
+        // Re-trigger, verify safe mode callback does not get fired again for identical state
+        statusCallback.onSafeModeStatusChanged();
+        mTestLooper.dispatchAll();
+
+        // Expect only once still; from above.
+        verify(mVcnCallback).onSafeModeStatusChanged(false);
     }
 
-    @Test
-    public void testGatewayQuit() {
+    private void verifyGatewayQuit(int status) {
+        mVcn.setStatus(status);
+
         final NetworkRequestListener requestListener = verifyAndGetRequestListener();
         final Set<VcnGatewayConnection> gatewayConnections =
                 new ArraySet<>(startGatewaysAndGetGatewayConnections(requestListener));
@@ -238,7 +259,7 @@
         assertEquals(1, mVcn.getVcnGatewayConnections().size());
         verify(mVcnNetworkProvider).resendAllRequests(requestListener);
 
-        // Verify that the VcnGatewayConnection is restarted
+        // Verify that the VcnGatewayConnection is restarted if a request exists for it
         triggerVcnRequestListeners(requestListener);
         mTestLooper.dispatchAll();
         assertEquals(2, mVcn.getVcnGatewayConnections().size());
@@ -252,21 +273,13 @@
     }
 
     @Test
-    public void testGatewayQuitWhileInactive() {
-        final NetworkRequestListener requestListener = verifyAndGetRequestListener();
-        final Set<VcnGatewayConnection> gatewayConnections =
-                new ArraySet<>(startGatewaysAndGetGatewayConnections(requestListener));
+    public void testGatewayQuitReevaluatesRequests() {
+        verifyGatewayQuit(VCN_STATUS_CODE_ACTIVE);
+    }
 
-        mVcn.teardownAsynchronously();
-        mTestLooper.dispatchAll();
-
-        final VcnGatewayStatusCallback statusCallback = mGatewayStatusCallbackCaptor.getValue();
-        statusCallback.onQuit();
-        mTestLooper.dispatchAll();
-
-        // Verify that the VCN requests the networkRequests be resent
-        assertEquals(1, mVcn.getVcnGatewayConnections().size());
-        verify(mVcnNetworkProvider, never()).resendAllRequests(requestListener);
+    @Test
+    public void testGatewayQuitReevaluatesRequestsInSafeMode() {
+        verifyGatewayQuit(VCN_STATUS_CODE_SAFE_MODE);
     }
 
     @Test
@@ -296,49 +309,4 @@
         verify(removedGatewayConnection).teardownAsynchronously();
         verify(mVcnNetworkProvider).resendAllRequests(requestListener);
     }
-
-    @Test
-    public void testUpdateConfigExitsSafeMode() {
-        final NetworkRequestListener requestListener = verifyAndGetRequestListener();
-        final Set<VcnGatewayConnection> gatewayConnections =
-                new ArraySet<>(startGatewaysAndGetGatewayConnections(requestListener));
-
-        final VcnGatewayStatusCallback statusCallback = mGatewayStatusCallbackCaptor.getValue();
-        statusCallback.onEnteredSafeMode();
-        mTestLooper.dispatchAll();
-        verifySafeMode(requestListener, gatewayConnections);
-
-        doAnswer(invocation -> {
-            final NetworkRequestListener listener = invocation.getArgument(0);
-            triggerVcnRequestListeners(listener);
-            return null;
-        }).when(mVcnNetworkProvider).registerListener(eq(requestListener));
-
-        mVcn.updateConfig(mConfig);
-        mTestLooper.dispatchAll();
-
-        // Registered on start, then re-registered with new configs
-        verify(mVcnNetworkProvider, times(2)).registerListener(eq(requestListener));
-        assertTrue(mVcn.isActive());
-        for (final int[] caps : TEST_CAPS) {
-            // Expect each gateway connection created only on initial startup
-            verify(mDeps)
-                    .newVcnGatewayConnection(
-                            eq(mVcnContext),
-                            eq(TEST_SUB_GROUP),
-                            eq(mSubscriptionSnapshot),
-                            argThat(config -> Arrays.equals(caps, config.getExposedCapabilities())),
-                            any());
-        }
-    }
-
-    @Test
-    public void testIgnoreNetworkRequestWhileInactive() {
-        mVcn.setIsActive(false /* isActive */);
-
-        final NetworkRequestListener requestListener = verifyAndGetRequestListener();
-        triggerVcnRequestListeners(requestListener);
-
-        verify(mDeps, never()).newVcnGatewayConnection(any(), any(), any(), any(), any());
-    }
 }
diff --git a/tests/vcn/java/com/android/server/vcn/util/MtuUtilsTest.java b/tests/vcn/java/com/android/server/vcn/util/MtuUtilsTest.java
new file mode 100644
index 0000000..29511f7
--- /dev/null
+++ b/tests/vcn/java/com/android/server/vcn/util/MtuUtilsTest.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.vcn.util;
+
+import static android.net.ipsec.ike.SaProposal.ENCRYPTION_ALGORITHM_AES_CBC;
+import static android.net.ipsec.ike.SaProposal.ENCRYPTION_ALGORITHM_AES_GCM_12;
+import static android.net.ipsec.ike.SaProposal.ENCRYPTION_ALGORITHM_AES_GCM_16;
+import static android.net.ipsec.ike.SaProposal.ENCRYPTION_ALGORITHM_AES_GCM_8;
+import static android.net.ipsec.ike.SaProposal.INTEGRITY_ALGORITHM_HMAC_SHA2_256_128;
+import static android.net.ipsec.ike.SaProposal.KEY_LEN_AES_256;
+
+import static com.android.net.module.util.NetworkStackConstants.ETHER_MTU;
+import static com.android.net.module.util.NetworkStackConstants.IPV6_MIN_MTU;
+import static com.android.server.vcn.util.MtuUtils.getMtu;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import static java.util.Collections.emptyList;
+
+import android.net.ipsec.ike.ChildSaProposal;
+
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.util.Arrays;
+import java.util.List;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class MtuUtilsTest {
+    @Test
+    public void testUnderlyingMtuZero() {
+        assertEquals(
+                IPV6_MIN_MTU, getMtu(emptyList(), ETHER_MTU /* maxMtu */, 0 /* underlyingMtu */));
+    }
+
+    @Test
+    public void testClampsToMaxMtu() {
+        assertEquals(0, getMtu(emptyList(), 0 /* maxMtu */, IPV6_MIN_MTU /* underlyingMtu */));
+    }
+
+    @Test
+    public void testNormalModeAlgorithmLessThanUnderlyingMtu() {
+        final List<ChildSaProposal> saProposals =
+                Arrays.asList(
+                        new ChildSaProposal.Builder()
+                                .addEncryptionAlgorithm(
+                                        ENCRYPTION_ALGORITHM_AES_CBC, KEY_LEN_AES_256)
+                                .addIntegrityAlgorithm(INTEGRITY_ALGORITHM_HMAC_SHA2_256_128)
+                                .build());
+
+        final int actualMtu =
+                getMtu(saProposals, ETHER_MTU /* maxMtu */, ETHER_MTU /* underlyingMtu */);
+        assertTrue(ETHER_MTU > actualMtu);
+    }
+
+    @Test
+    public void testCombinedModeAlgorithmLessThanUnderlyingMtu() {
+        final List<ChildSaProposal> saProposals =
+                Arrays.asList(
+                        new ChildSaProposal.Builder()
+                                .addEncryptionAlgorithm(
+                                        ENCRYPTION_ALGORITHM_AES_GCM_16, KEY_LEN_AES_256)
+                                .addEncryptionAlgorithm(
+                                        ENCRYPTION_ALGORITHM_AES_GCM_12, KEY_LEN_AES_256)
+                                .addEncryptionAlgorithm(
+                                        ENCRYPTION_ALGORITHM_AES_GCM_8, KEY_LEN_AES_256)
+                                .build());
+
+        final int actualMtu =
+                getMtu(saProposals, ETHER_MTU /* maxMtu */, ETHER_MTU /* underlyingMtu */);
+        assertTrue(ETHER_MTU > actualMtu);
+    }
+}
diff --git a/tools/fonts/Android.bp b/tools/fonts/Android.bp
new file mode 100644
index 0000000..bf50661
--- /dev/null
+++ b/tools/fonts/Android.bp
@@ -0,0 +1,39 @@
+// Copyright (C) 2021 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+python_defaults {
+    name: "fonts_python_defaults",
+    version: {
+        py2: {
+            enabled: false,
+            embedded_launcher: false,
+        },
+        py3: {
+            enabled: true,
+            embedded_launcher: true,
+        },
+    },
+}
+
+python_binary_host {
+    name: "fontchain_linter",
+    defaults: ["fonts_python_defaults"],
+    main: "fontchain_linter.py",
+    srcs: [
+        "fontchain_linter.py",
+    ],
+    libs: [
+        "fontTools",
+    ],
+}
diff --git a/tools/hiddenapi/OWNERS b/tools/hiddenapi/OWNERS
new file mode 100644
index 0000000..afbeef5
--- /dev/null
+++ b/tools/hiddenapi/OWNERS
@@ -0,0 +1,7 @@
+# compat-team@ for changes to hiddenapi files
+andreionea@google.com
+mathewi@google.com
+satayev@google.com
+
+# soong-team@ as the files these tools protect are tightly coupled with Soong
+file:platform/build/soong:/OWNERS
diff --git a/tools/hiddenapi/checksorted_sha.sh b/tools/hiddenapi/checksorted_sha.sh
deleted file mode 100755
index ceb705f..0000000
--- a/tools/hiddenapi/checksorted_sha.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/bin/bash
-set -e
-LOCAL_DIR="$( dirname ${BASH_SOURCE} )"
-git show --name-only --pretty=format: $1 | grep "config/hiddenapi-.*txt" | while read file; do
-    diff <(git show $1:$file) <(git show $1:$file | $LOCAL_DIR/sort_api.sh )  || {
-      echo -e "\e[1m\e[31m$file $1 is not sorted or contains duplicates. To sort it correctly:\e[0m"
-      echo -e "\e[33m${LOCAL_DIR}/sort_api.sh $2/frameworks/base/$file\e[0m"
-      exit 1
-    }
-done
diff --git a/tools/hiddenapi/exclude.sh b/tools/hiddenapi/exclude.sh
index 73eacc0..8b18f9b 100755
--- a/tools/hiddenapi/exclude.sh
+++ b/tools/hiddenapi/exclude.sh
@@ -7,12 +7,9 @@
 # the team email to use in the event of this detecting an entry in a <team> package. Also
 # add <team> to the TEAMS list. 
 LIBCORE_PACKAGES="\
-  android.icu \
   android.system \
   android.test \
   com.android.bouncycastle \
-  com.android.conscrypt \
-  com.android.i18n.phonenumbers \
   com.android.okhttp \
   com.sun \
   dalvik \
@@ -24,37 +21,54 @@
   org.json \
   org.w3c.dom \
   org.xml.sax \
+  org.xmlpull.v1 \
   sun \
   "
 LIBCORE_EMAIL=libcore-team@android.com
 
+I18N_PACKAGES="\
+  android.icu \
+  "
+
+I18N_EMAIL=$LIBCORE_EMAIL
+
+CONSCRYPT_PACKAGES="\
+  com.android.org.conscrypt \
+  "
+
+CONSCRYPT_EMAIL=$LIBCORE_EMAIL
+
 # List of teams.
-TEAMS=LIBCORE
+TEAMS="LIBCORE I18N CONSCRYPT"
+
+SHA=$1
 
 # Generate the list of packages and convert to a regular expression.
 PACKAGES=$(for t in $TEAMS; do echo $(eval echo \${${t}_PACKAGES}); done)
 RE=$(echo ${PACKAGES} | sed "s/ /|/g")
-git show --name-only --pretty=format: $1 | grep "config/hiddenapi-.*txt" | while read file; do
-    ENTRIES=$(grep -E "^L(${RE})/" || true <(git show $1:$file))
+EXIT_CODE=0
+for file in $(git show --name-only --pretty=format: $SHA | grep "boot/hiddenapi/hiddenapi-.*txt"); do
+    ENTRIES=$(grep -E "^\+L(${RE})/" <(git diff ${SHA}~1 ${SHA} $file) | sed "s|^\+||" || echo)
     if [[ -n "${ENTRIES}" ]]; then
-      echo -e "\e[1m\e[31m$file $1 contains the following entries\e[0m"
+      echo -e "\e[1m\e[31m$file $SHA contains the following entries\e[0m"
       echo -e "\e[1m\e[31mfor packages that are handled using UnsupportedAppUsage. Please remove\e[0m"
       echo -e "\e[1m\e[31mthese entries and add annotations instead.\e[0m"
       # Partition the entries by team and provide contact details to aid in fixing the issue.
       for t in ${TEAMS}
       do
         PACKAGES=$(eval echo \${${t}_PACKAGES})
-        RE=$(echo ${PACKAGES} | sed "s/ /|/g")
-        TEAM_ENTRIES=$(grep -E "^L(${RE})/" <(echo "${ENTRIES}"))
+        TEAM_RE=$(echo ${PACKAGES} | sed "s/ /|/g")
+        TEAM_ENTRIES=$(grep -E "^L(${TEAM_RE})/" <(echo "${ENTRIES}") || echo)
         if [[ -n "${TEAM_ENTRIES}" ]]; then
           EMAIL=$(eval echo \${${t}_EMAIL})
-          echo -e "\e[33mContact ${EMAIL} or compat- for help with the following:\e[0m"
-          for i in ${ENTRIES}
+          echo -e "\e[33mContact ${EMAIL} for help with the following:\e[0m"
+          for i in ${TEAM_ENTRIES}
           do
             echo -e "\e[33m  ${i}\e[0m"
           done
         fi
       done
-      exit 1
+      EXIT_CODE=1
     fi
 done
+exit $EXIT_CODE
diff --git a/tools/hiddenapi/sort_api.sh b/tools/hiddenapi/sort_api.sh
deleted file mode 100755
index 710da40..0000000
--- a/tools/hiddenapi/sort_api.sh
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/bin/bash
-set -e
-if [ -z "$1" ]; then
-  source_list=/dev/stdin
-  dest_list=/dev/stdout
-else
-  source_list="$1"
-  dest_list="$1"
-fi
-# Load the file
-readarray A < "$source_list"
-# Sort
-IFS=$'\n'
-# Stash away comments
-C=( $(grep -E '^#' <<< "${A[*]}" || :) )
-A=( $(grep -v -E '^#' <<< "${A[*]}" || :) )
-# Sort entries
-A=( $(LC_COLLATE=C sort -f <<< "${A[*]}") )
-A=( $(uniq <<< "${A[*]}") )
-# Concatenate comments and entries
-A=( ${C[*]} ${A[*]} )
-unset IFS
-# Dump array back into the file
-if [ ${#A[@]} -ne 0 ]; then
-  printf '%s\n' "${A[@]}" > "$dest_list"
-fi