diff --git a/framework/Android.bp b/framework/Android.bp
index 5b33328..657d5a3 100644
--- a/framework/Android.bp
+++ b/framework/Android.bp
@@ -100,9 +100,50 @@
     libs: [
         "unsupportedappusage",
     ],
-    permitted_packages: [
-        "android.net",
-        "com.android.connectivity.aidl",
+    permitted_packages: ["android.net"],
+}
+
+cc_defaults {
+    name: "libframework-connectivity-defaults",
+    cflags: [
+        "-Wall",
+        "-Werror",
+        "-Wno-unused-parameter",
+        "-Wthread-safety",
+    ],
+    shared_libs: [
+        "libbase",
+        "liblog",
+        "libnativehelper",
+        "libnetd_client",
+    ],
+    header_libs: [
+        "dnsproxyd_protocol_headers",
+    ],
+}
+
+cc_library_static {
+    name: "libconnectivityframeworkutils",
+    defaults: ["libframework-connectivity-defaults"],
+    srcs: [
+        "jni/android_net_NetworkUtils.cpp",
+    ],
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.tethering",
+    ],
+}
+
+cc_library_shared {
+    name: "libframework-connectivity-jni",
+    defaults: ["libframework-connectivity-defaults"],
+    srcs: [
+        "jni/onload.cpp",
+    ],
+    static_libs: ["libconnectivityframeworkutils"],
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.tethering",
     ],
 }
 
@@ -124,7 +165,6 @@
         "framework-tethering",
         "framework-wifi",
         "unsupportedappusage",
-        "ServiceConnectivityResources",
     ],
     static_libs: [
         "framework-connectivity-protos",
@@ -133,8 +173,5 @@
     jarjar_rules: "jarjar-rules.txt",
     apex_available: ["com.android.tethering"],
     installable: true,
-    permitted_packages: [
-        "android.net",
-        "com.android.connectivity.aidl",
-    ],
+    permitted_packages: ["android.net"],
 }
diff --git a/framework/api/current.txt b/framework/api/current.txt
index f22d4b7..e415e01 100644
--- a/framework/api/current.txt
+++ b/framework/api/current.txt
@@ -291,6 +291,7 @@
     ctor public NetworkCapabilities();
     ctor public NetworkCapabilities(android.net.NetworkCapabilities);
     method public int describeContents();
+    method @NonNull public int[] getCapabilities();
     method public int getLinkDownstreamBandwidthKbps();
     method public int getLinkUpstreamBandwidthKbps();
     method @Nullable public android.net.NetworkSpecifier getNetworkSpecifier();
diff --git a/framework/api/module-lib-current.txt b/framework/api/module-lib-current.txt
index 7a91f64..5bd01a6 100644
--- a/framework/api/module-lib-current.txt
+++ b/framework/api/module-lib-current.txt
@@ -19,7 +19,11 @@
     method @RequiresPermission(android.Manifest.permission.NETWORK_STACK) public void setGlobalProxy(@Nullable android.net.ProxyInfo);
     method @RequiresPermission(android.Manifest.permission.NETWORK_STACK) public void setProfileNetworkPreference(@NonNull android.os.UserHandle, int, @Nullable java.util.concurrent.Executor, @Nullable Runnable);
     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_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 String PRIVATE_DNS_MODE_OFF = "off";
     field public static final String PRIVATE_DNS_MODE_OPPORTUNISTIC = "opportunistic";
     field public static final String PRIVATE_DNS_MODE_PROVIDER_HOSTNAME = "hostname";
@@ -36,9 +40,18 @@
   }
 
   public final class NetworkCapabilities implements android.os.Parcelable {
+    method @Nullable public java.util.Set<android.util.Range<java.lang.Integer>> getUids();
     field public static final int TRANSPORT_TEST = 7; // 0x7
   }
 
+  public static final class NetworkCapabilities.Builder {
+    method @NonNull public android.net.NetworkCapabilities.Builder setUids(@Nullable java.util.Set<android.util.Range<java.lang.Integer>>);
+  }
+
+  public static class NetworkRequest.Builder {
+    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);
diff --git a/framework/jni/android_net_NetworkUtils.cpp b/framework/jni/android_net_NetworkUtils.cpp
new file mode 100644
index 0000000..19ffe77
--- /dev/null
+++ b/framework/jni/android_net_NetworkUtils.cpp
@@ -0,0 +1,308 @@
+/*
+ * Copyright 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.
+ */
+
+#define LOG_TAG "NetworkUtils"
+
+#include <vector>
+
+#include <android/file_descriptor_jni.h>
+#include <arpa/inet.h>
+#include <linux/filter.h>
+#include <linux/if_arp.h>
+#include <linux/tcp.h>
+#include <net/if.h>
+#include <netinet/ether.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+
+#include <DnsProxydProtocol.h> // NETID_USE_LOCAL_NAMESERVERS
+#include <cutils/properties.h>
+#include <nativehelper/JNIPlatformHelp.h>
+#include <nativehelper/ScopedLocalRef.h>
+#include <utils/Log.h>
+#include <utils/misc.h>
+
+#include "NetdClient.h"
+#include "jni.h"
+
+extern "C" {
+int ifc_enable(const char *ifname);
+int ifc_disable(const char *ifname);
+}
+
+#define NETUTILS_PKG_NAME "android/net/NetworkUtils"
+
+namespace android {
+
+constexpr int MAXPACKETSIZE = 8 * 1024;
+// FrameworkListener limits the size of commands to 4096 bytes.
+constexpr int MAXCMDSIZE = 4096;
+
+static inline jclass FindClassOrDie(JNIEnv* env, const char* class_name) {
+    jclass clazz = env->FindClass(class_name);
+    LOG_ALWAYS_FATAL_IF(clazz == NULL, "Unable to find class %s", class_name);
+    return clazz;
+}
+
+static inline jmethodID GetMethodIDOrDie(JNIEnv* env, jclass clazz, const char* method_name,
+                                         const char* method_signature) {
+    jmethodID res = env->GetMethodID(clazz, method_name, method_signature);
+    LOG_ALWAYS_FATAL_IF(res == NULL, "Unable to find method %s with signature %s", method_name,
+                        method_signature);
+    return res;
+}
+
+template <typename T>
+static inline T MakeGlobalRefOrDie(JNIEnv* env, T in) {
+    jobject res = env->NewGlobalRef(in);
+    LOG_ALWAYS_FATAL_IF(res == NULL, "Unable to create global reference.");
+    return static_cast<T>(res);
+}
+
+static void throwErrnoException(JNIEnv* env, const char* functionName, int error) {
+    ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName));
+    if (detailMessage.get() == NULL) {
+        // Not really much we can do here. We're probably dead in the water,
+        // but let's try to stumble on...
+        env->ExceptionClear();
+    }
+    static jclass errnoExceptionClass =
+            MakeGlobalRefOrDie(env, FindClassOrDie(env, "android/system/ErrnoException"));
+
+    static jmethodID errnoExceptionCtor =
+            GetMethodIDOrDie(env, errnoExceptionClass,
+            "<init>", "(Ljava/lang/String;I)V");
+
+    jobject exception = env->NewObject(errnoExceptionClass,
+                                       errnoExceptionCtor,
+                                       detailMessage.get(),
+                                       error);
+    env->Throw(reinterpret_cast<jthrowable>(exception));
+}
+
+static void android_net_utils_attachDropAllBPFFilter(JNIEnv *env, jobject clazz, jobject javaFd)
+{
+    struct sock_filter filter_code[] = {
+        // Reject all.
+        BPF_STMT(BPF_RET | BPF_K, 0)
+    };
+    struct sock_fprog filter = {
+        sizeof(filter_code) / sizeof(filter_code[0]),
+        filter_code,
+    };
+
+    int fd = AFileDescriptor_getFD(env, javaFd);
+    if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &filter, sizeof(filter)) != 0) {
+        jniThrowExceptionFmt(env, "java/net/SocketException",
+                "setsockopt(SO_ATTACH_FILTER): %s", strerror(errno));
+    }
+}
+
+static void android_net_utils_detachBPFFilter(JNIEnv *env, jobject clazz, jobject javaFd)
+{
+    int optval_ignored = 0;
+    int fd = AFileDescriptor_getFD(env, javaFd);
+    if (setsockopt(fd, SOL_SOCKET, SO_DETACH_FILTER, &optval_ignored, sizeof(optval_ignored)) !=
+        0) {
+        jniThrowExceptionFmt(env, "java/net/SocketException",
+                "setsockopt(SO_DETACH_FILTER): %s", strerror(errno));
+    }
+}
+
+static jboolean android_net_utils_bindProcessToNetwork(JNIEnv *env, jobject thiz, jint netId)
+{
+    return (jboolean) !setNetworkForProcess(netId);
+}
+
+static jint android_net_utils_getBoundNetworkForProcess(JNIEnv *env, jobject thiz)
+{
+    return getNetworkForProcess();
+}
+
+static jboolean android_net_utils_bindProcessToNetworkForHostResolution(JNIEnv *env, jobject thiz,
+        jint netId)
+{
+    return (jboolean) !setNetworkForResolv(netId);
+}
+
+static jint android_net_utils_bindSocketToNetwork(JNIEnv *env, jobject thiz, jobject javaFd,
+                                                  jint netId) {
+    return setNetworkForSocket(netId, AFileDescriptor_getFD(env, javaFd));
+}
+
+static jboolean android_net_utils_queryUserAccess(JNIEnv *env, jobject thiz, jint uid, jint netId)
+{
+    return (jboolean) !queryUserAccess(uid, netId);
+}
+
+static bool checkLenAndCopy(JNIEnv* env, const jbyteArray& addr, int len, void* dst)
+{
+    if (env->GetArrayLength(addr) != len) {
+        return false;
+    }
+    env->GetByteArrayRegion(addr, 0, len, reinterpret_cast<jbyte*>(dst));
+    return true;
+}
+
+static jobject android_net_utils_resNetworkQuery(JNIEnv *env, jobject thiz, jint netId,
+        jstring dname, jint ns_class, jint ns_type, jint flags) {
+    const jsize javaCharsCount = env->GetStringLength(dname);
+    const jsize byteCountUTF8 = env->GetStringUTFLength(dname);
+
+    // Only allow dname which could be simply formatted to UTF8.
+    // In native layer, res_mkquery would re-format the input char array to packet.
+    std::vector<char> queryname(byteCountUTF8 + 1, 0);
+
+    env->GetStringUTFRegion(dname, 0, javaCharsCount, queryname.data());
+    int fd = resNetworkQuery(netId, queryname.data(), ns_class, ns_type, flags);
+
+    if (fd < 0) {
+        throwErrnoException(env, "resNetworkQuery", -fd);
+        return nullptr;
+    }
+
+    return jniCreateFileDescriptor(env, fd);
+}
+
+static jobject android_net_utils_resNetworkSend(JNIEnv *env, jobject thiz, jint netId,
+        jbyteArray msg, jint msgLen, jint flags) {
+    uint8_t data[MAXCMDSIZE];
+
+    checkLenAndCopy(env, msg, msgLen, data);
+    int fd = resNetworkSend(netId, data, msgLen, flags);
+
+    if (fd < 0) {
+        throwErrnoException(env, "resNetworkSend", -fd);
+        return nullptr;
+    }
+
+    return jniCreateFileDescriptor(env, fd);
+}
+
+static jobject android_net_utils_resNetworkResult(JNIEnv *env, jobject thiz, jobject javaFd) {
+    int fd = AFileDescriptor_getFD(env, javaFd);
+    int rcode;
+    std::vector<uint8_t> buf(MAXPACKETSIZE, 0);
+
+    int res = resNetworkResult(fd, &rcode, buf.data(), MAXPACKETSIZE);
+    jniSetFileDescriptorOfFD(env, javaFd, -1);
+    if (res < 0) {
+        throwErrnoException(env, "resNetworkResult", -res);
+        return nullptr;
+    }
+
+    jbyteArray answer = env->NewByteArray(res);
+    if (answer == nullptr) {
+        throwErrnoException(env, "resNetworkResult", ENOMEM);
+        return nullptr;
+    } else {
+        env->SetByteArrayRegion(answer, 0, res,
+                reinterpret_cast<jbyte*>(buf.data()));
+    }
+
+    jclass class_DnsResponse = env->FindClass("android/net/DnsResolver$DnsResponse");
+    jmethodID ctor = env->GetMethodID(class_DnsResponse, "<init>", "([BI)V");
+
+    return env->NewObject(class_DnsResponse, ctor, answer, rcode);
+}
+
+static void android_net_utils_resNetworkCancel(JNIEnv *env, jobject thiz, jobject javaFd) {
+    int fd = AFileDescriptor_getFD(env, javaFd);
+    resNetworkCancel(fd);
+    jniSetFileDescriptorOfFD(env, javaFd, -1);
+}
+
+static jobject android_net_utils_getDnsNetwork(JNIEnv *env, jobject thiz) {
+    unsigned dnsNetId = 0;
+    if (int res = getNetworkForDns(&dnsNetId) < 0) {
+        throwErrnoException(env, "getDnsNetId", -res);
+        return nullptr;
+    }
+    bool privateDnsBypass = dnsNetId & NETID_USE_LOCAL_NAMESERVERS;
+
+    static jclass class_Network = MakeGlobalRefOrDie(
+            env, FindClassOrDie(env, "android/net/Network"));
+    static jmethodID ctor = env->GetMethodID(class_Network, "<init>", "(IZ)V");
+    return env->NewObject(
+            class_Network, ctor, dnsNetId & ~NETID_USE_LOCAL_NAMESERVERS, privateDnsBypass);
+}
+
+static jobject android_net_utils_getTcpRepairWindow(JNIEnv *env, jobject thiz, jobject javaFd) {
+    if (javaFd == NULL) {
+        jniThrowNullPointerException(env, NULL);
+        return NULL;
+    }
+
+    int fd = AFileDescriptor_getFD(env, javaFd);
+    struct tcp_repair_window trw = {};
+    socklen_t size = sizeof(trw);
+
+    // Obtain the parameters of the TCP repair window.
+    int rc = getsockopt(fd, IPPROTO_TCP, TCP_REPAIR_WINDOW, &trw, &size);
+    if (rc == -1) {
+        throwErrnoException(env, "getsockopt : TCP_REPAIR_WINDOW", errno);
+        return NULL;
+    }
+
+    struct tcp_info tcpinfo = {};
+    socklen_t tcpinfo_size = sizeof(tcp_info);
+
+    // Obtain the window scale from the tcp info structure. This contains a scale factor that
+    // should be applied to the window size.
+    rc = getsockopt(fd, IPPROTO_TCP, TCP_INFO, &tcpinfo, &tcpinfo_size);
+    if (rc == -1) {
+        throwErrnoException(env, "getsockopt : TCP_INFO", errno);
+        return NULL;
+    }
+
+    jclass class_TcpRepairWindow = env->FindClass("android/net/TcpRepairWindow");
+    jmethodID ctor = env->GetMethodID(class_TcpRepairWindow, "<init>", "(IIIIII)V");
+
+    return env->NewObject(class_TcpRepairWindow, ctor, trw.snd_wl1, trw.snd_wnd, trw.max_window,
+            trw.rcv_wnd, trw.rcv_wup, tcpinfo.tcpi_rcv_wscale);
+}
+
+// ----------------------------------------------------------------------------
+
+/*
+ * JNI registration.
+ */
+// clang-format off
+static const JNINativeMethod gNetworkUtilMethods[] = {
+    /* name, signature, funcPtr */
+    { "bindProcessToNetwork", "(I)Z", (void*) android_net_utils_bindProcessToNetwork },
+    { "getBoundNetworkForProcess", "()I", (void*) android_net_utils_getBoundNetworkForProcess },
+    { "bindProcessToNetworkForHostResolution", "(I)Z", (void*) android_net_utils_bindProcessToNetworkForHostResolution },
+    { "bindSocketToNetwork", "(Ljava/io/FileDescriptor;I)I", (void*) android_net_utils_bindSocketToNetwork },
+    { "queryUserAccess", "(II)Z", (void*)android_net_utils_queryUserAccess },
+    { "attachDropAllBPFFilter", "(Ljava/io/FileDescriptor;)V", (void*) android_net_utils_attachDropAllBPFFilter },
+    { "detachBPFFilter", "(Ljava/io/FileDescriptor;)V", (void*) android_net_utils_detachBPFFilter },
+    { "getTcpRepairWindow", "(Ljava/io/FileDescriptor;)Landroid/net/TcpRepairWindow;", (void*) android_net_utils_getTcpRepairWindow },
+    { "resNetworkSend", "(I[BII)Ljava/io/FileDescriptor;", (void*) android_net_utils_resNetworkSend },
+    { "resNetworkQuery", "(ILjava/lang/String;III)Ljava/io/FileDescriptor;", (void*) android_net_utils_resNetworkQuery },
+    { "resNetworkResult", "(Ljava/io/FileDescriptor;)Landroid/net/DnsResolver$DnsResponse;", (void*) android_net_utils_resNetworkResult },
+    { "resNetworkCancel", "(Ljava/io/FileDescriptor;)V", (void*) android_net_utils_resNetworkCancel },
+    { "getDnsNetwork", "()Landroid/net/Network;", (void*) android_net_utils_getDnsNetwork },
+};
+// clang-format on
+
+int register_android_net_NetworkUtils(JNIEnv* env)
+{
+    return jniRegisterNativeMethods(env, NETUTILS_PKG_NAME, gNetworkUtilMethods,
+                                    NELEM(gNetworkUtilMethods));
+}
+
+}; // namespace android
diff --git a/framework/jni/onload.cpp b/framework/jni/onload.cpp
new file mode 100644
index 0000000..435f434
--- /dev/null
+++ b/framework/jni/onload.cpp
@@ -0,0 +1,38 @@
+/*
+ * 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.
+ */
+
+#include <nativehelper/JNIHelp.h>
+#include <log/log.h>
+
+namespace android {
+
+int register_android_net_NetworkUtils(JNIEnv* env);
+
+extern "C" jint JNI_OnLoad(JavaVM* vm, void*) {
+    JNIEnv *env;
+    if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
+        ALOGE("GetEnv failed");
+        return JNI_ERR;
+    }
+
+    if (register_android_net_NetworkUtils(env) < 0) {
+        return JNI_ERR;
+    }
+
+    return JNI_VERSION_1_6;
+}
+
+};
\ No newline at end of file
diff --git a/framework/src/android/net/CaptivePortalData.java b/framework/src/android/net/CaptivePortalData.java
index 82dbd0f..53aa1b9 100644
--- a/framework/src/android/net/CaptivePortalData.java
+++ b/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/framework/src/android/net/ConnectivityManager.java b/framework/src/android/net/ConnectivityManager.java
index 9f63abf..f8a0e4e 100644
--- a/framework/src/android/net/ConnectivityManager.java
+++ b/framework/src/android/net/ConnectivityManager.java
@@ -73,7 +73,6 @@
 import android.util.Range;
 import android.util.SparseIntArray;
 
-import com.android.connectivity.aidl.INetworkAgent;
 import com.android.internal.annotations.GuardedBy;
 
 import libcore.net.event.NetworkEventDispatcher;
@@ -424,7 +423,8 @@
      *
      * @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
@@ -432,8 +432,9 @@
      *
      * @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
@@ -442,8 +443,9 @@
      *
      * @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";
 
     /**
      * Invalid tethering type.
@@ -4467,12 +4469,20 @@
     /**
      * Requests that the system open the captive portal app on the specified network.
      *
+     * <p>This is to be used on networks where a captive portal was detected, as per
+     * {@link NetworkCapabilities#NET_CAPABILITY_CAPTIVE_PORTAL}.
+     *
      * @param network The network to log into.
      *
      * @hide
      */
-    @RequiresPermission(android.Manifest.permission.NETWORK_SETTINGS)
-    public void startCaptivePortalApp(Network network) {
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.NETWORK_SETTINGS,
+            android.Manifest.permission.NETWORK_STACK,
+            NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK
+    })
+    public void startCaptivePortalApp(@NonNull Network network) {
         try {
             mService.startCaptivePortalApp(network);
         } catch (RemoteException e) {
diff --git a/framework/src/android/net/IConnectivityManager.aidl b/framework/src/android/net/IConnectivityManager.aidl
index 98f3d40..3300fa8 100644
--- a/framework/src/android/net/IConnectivityManager.aidl
+++ b/framework/src/android/net/IConnectivityManager.aidl
@@ -20,6 +20,7 @@
 import android.net.ConnectionInfo;
 import android.net.ConnectivityDiagnosticsManager;
 import android.net.IConnectivityDiagnosticsCallback;
+import android.net.INetworkAgent;
 import android.net.IOnCompleteListener;
 import android.net.INetworkActivityListener;
 import android.net.IQosCallback;
@@ -45,8 +46,6 @@
 import android.os.ResultReceiver;
 import android.os.UserHandle;
 
-import com.android.connectivity.aidl.INetworkAgent;
-
 /**
  * Interface that answers queries about, and allows changing, the
  * state of network connectivity.
diff --git a/framework/src/com/android/connectivity/aidl/INetworkAgent.aidl b/framework/src/android/net/INetworkAgent.aidl
similarity index 94%
rename from framework/src/com/android/connectivity/aidl/INetworkAgent.aidl
rename to framework/src/android/net/INetworkAgent.aidl
index 64b5567..1f66e18 100644
--- a/framework/src/com/android/connectivity/aidl/INetworkAgent.aidl
+++ b/framework/src/android/net/INetworkAgent.aidl
@@ -13,13 +13,13 @@
  * See the License for the specific language governing perNmissions and
  * limitations under the License.
  */
-package com.android.connectivity.aidl;
+package android.net;
 
 import android.net.NattKeepalivePacketData;
 import android.net.QosFilterParcelable;
 import android.net.TcpKeepalivePacketData;
 
-import com.android.connectivity.aidl.INetworkAgentRegistry;
+import android.net.INetworkAgentRegistry;
 
 /**
  * Interface to notify NetworkAgent of connectivity events.
diff --git a/framework/src/com/android/connectivity/aidl/INetworkAgentRegistry.aidl b/framework/src/android/net/INetworkAgentRegistry.aidl
similarity index 97%
rename from framework/src/com/android/connectivity/aidl/INetworkAgentRegistry.aidl
rename to framework/src/android/net/INetworkAgentRegistry.aidl
index 18d26a7..c5464d3 100644
--- a/framework/src/com/android/connectivity/aidl/INetworkAgentRegistry.aidl
+++ b/framework/src/android/net/INetworkAgentRegistry.aidl
@@ -13,7 +13,7 @@
  * See the License for the specific language governing perNmissions and
  * limitations under the License.
  */
-package com.android.connectivity.aidl;
+package android.net;
 
 import android.net.LinkProperties;
 import android.net.Network;
diff --git a/framework/src/android/net/NetworkAgent.java b/framework/src/android/net/NetworkAgent.java
index a127c6f..1416bb9 100644
--- a/framework/src/android/net/NetworkAgent.java
+++ b/framework/src/android/net/NetworkAgent.java
@@ -34,8 +34,6 @@
 import android.telephony.data.EpsBearerQosSessionAttributes;
 import android.util.Log;
 
-import com.android.connectivity.aidl.INetworkAgent;
-import com.android.connectivity.aidl.INetworkAgentRegistry;
 import com.android.internal.annotations.VisibleForTesting;
 
 import java.lang.annotation.Retention;
diff --git a/framework/src/android/net/NetworkAgentConfig.java b/framework/src/android/net/NetworkAgentConfig.java
index 664c265..5e50a64 100644
--- a/framework/src/android/net/NetworkAgentConfig.java
+++ b/framework/src/android/net/NetworkAgentConfig.java
@@ -50,7 +50,8 @@
      * ap in the wifi settings to trigger a connection is explicit.  A 3rd party app asking to
      * connect to a particular access point is also explicit, though this may change in the future
      * as we want apps to use the multinetwork apis.
-     *
+     * TODO : this is a bad name, because it sounds like the user just tapped on the network.
+     * It's not necessarily the case ; auto-reconnection to WiFi has this true for example.
      * @hide
      */
     public boolean explicitlySelected;
diff --git a/framework/src/android/net/NetworkCapabilities.java b/framework/src/android/net/NetworkCapabilities.java
index c6dfcee..1466629 100644
--- a/framework/src/android/net/NetworkCapabilities.java
+++ b/framework/src/android/net/NetworkCapabilities.java
@@ -22,6 +22,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
+import android.annotation.SuppressLint;
 import android.annotation.SystemApi;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.net.ConnectivityManager.NetworkCallback;
@@ -32,6 +33,7 @@
 import android.os.Process;
 import android.text.TextUtils;
 import android.util.ArraySet;
+import android.util.Range;
 import android.util.proto.ProtoOutputStream;
 
 import com.android.internal.annotations.VisibleForTesting;
@@ -152,7 +154,7 @@
             setTransportInfo(null);
         }
         mSignalStrength = nc.mSignalStrength;
-        setUids(nc.mUids); // Will make the defensive copy
+        mUids = (nc.mUids == null) ? null : new ArraySet<>(nc.mUids);
         setAdministratorUids(nc.getAdministratorUids());
         mOwnerUid = nc.mOwnerUid;
         mUnwantedNetworkCapabilities = nc.mUnwantedNetworkCapabilities;
@@ -608,10 +610,8 @@
      * Gets all the capabilities set on this {@code NetworkCapability} instance.
      *
      * @return an array of capability values for this instance.
-     * @hide
      */
-    @UnsupportedAppUsage
-    public @NetCapability int[] getCapabilities() {
+    public @NonNull @NetCapability int[] getCapabilities() {
         return NetworkCapabilitiesUtils.unpackBits(mNetworkCapabilities);
     }
 
@@ -1457,9 +1457,8 @@
      * @hide
      */
     public @NonNull NetworkCapabilities setSingleUid(int uid) {
-        final ArraySet<UidRange> identity = new ArraySet<>(1);
-        identity.add(new UidRange(uid, uid));
-        setUids(identity);
+        mUids = new ArraySet<>(1);
+        mUids.add(new UidRange(uid, uid));
         return this;
     }
 
@@ -1468,22 +1467,34 @@
      * This makes a copy of the set so that callers can't modify it after the call.
      * @hide
      */
-    public @NonNull NetworkCapabilities setUids(Set<UidRange> uids) {
-        if (null == uids) {
-            mUids = null;
-        } else {
-            mUids = new ArraySet<>(uids);
-        }
+    public @NonNull NetworkCapabilities setUids(@Nullable Set<Range<Integer>> uids) {
+        mUids = UidRange.fromIntRanges(uids);
         return this;
     }
 
     /**
      * Get the list of UIDs this network applies to.
      * This returns a copy of the set so that callers can't modify the original object.
+     *
+     * @return the list of UIDs this network applies to. If {@code null}, then the network applies
+     *         to all UIDs.
+     * @hide
+     */
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+    @SuppressLint("NullableCollection")
+    public @Nullable Set<Range<Integer>> getUids() {
+        return UidRange.toIntRanges(mUids);
+    }
+
+    /**
+     * Get the list of UIDs this network applies to.
+     * This returns a copy of the set so that callers can't modify the original object.
      * @hide
      */
-    public @Nullable Set<UidRange> getUids() {
-        return null == mUids ? null : new ArraySet<>(mUids);
+    public @Nullable Set<UidRange> getUidRanges() {
+        if (mUids == null) return null;
+
+        return new ArraySet<>(mUids);
     }
 
     /**
@@ -2656,6 +2667,21 @@
         }
 
         /**
+         * Set the list of UIDs this network applies to.
+         *
+         * @param uids the list of UIDs this network applies to, or {@code null} if this network
+         *             applies to all UIDs.
+         * @return this builder
+         * @hide
+         */
+        @NonNull
+        @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+        public Builder setUids(@Nullable Set<Range<Integer>> uids) {
+            mCaps.setUids(uids);
+            return this;
+        }
+
+        /**
          * Builds the instance of the capabilities.
          *
          * @return the built instance of NetworkCapabilities.
diff --git a/framework/src/android/net/NetworkRequest.java b/framework/src/android/net/NetworkRequest.java
index dbe3ecc..cf131f0 100644
--- a/framework/src/android/net/NetworkRequest.java
+++ b/framework/src/android/net/NetworkRequest.java
@@ -36,6 +36,7 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
+import android.annotation.SuppressLint;
 import android.annotation.SystemApi;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.net.NetworkCapabilities.NetCapability;
@@ -45,6 +46,7 @@
 import android.os.Parcelable;
 import android.os.Process;
 import android.text.TextUtils;
+import android.util.Range;
 import android.util.proto.ProtoOutputStream;
 
 import java.util.Arrays;
@@ -277,11 +279,14 @@
          * Set the watched UIDs for this request. This will be reset and wiped out unless
          * the calling app holds the CHANGE_NETWORK_STATE permission.
          *
-         * @param uids The watched UIDs as a set of UidRanges, or null for everything.
+         * @param uids The watched UIDs as a set of {@code Range<Integer>}, or null for everything.
          * @return The builder to facilitate chaining.
          * @hide
          */
-        public Builder setUids(Set<UidRange> uids) {
+        @NonNull
+        @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
+        @SuppressLint("MissingGetterMatchingBuilder")
+        public Builder setUids(@Nullable Set<Range<Integer>> uids) {
             mNetworkCapabilities.setUids(uids);
             return this;
         }
diff --git a/framework/src/android/net/NetworkScore.java b/framework/src/android/net/NetworkScore.java
index e640737..eadcb2d 100644
--- a/framework/src/android/net/NetworkScore.java
+++ b/framework/src/android/net/NetworkScore.java
@@ -20,6 +20,8 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 
+import com.android.internal.annotations.VisibleForTesting;
+
 /**
  * Object representing the quality of a network as perceived by the user.
  *
@@ -35,6 +37,10 @@
 
     // Agent-managed policies
     // TODO : add them here, starting from 1
+    /** @hide */
+    public static final int MIN_AGENT_MANAGED_POLICY = 0;
+    /** @hide */
+    public static final int MAX_AGENT_MANAGED_POLICY = -1;
 
     // Bitmask of all the policies applied to this score.
     private final long mPolicies;
@@ -54,6 +60,14 @@
         return mLegacyInt;
     }
 
+    /**
+     * @return whether this score has a particular policy.
+     */
+    @VisibleForTesting
+    public boolean hasPolicy(final int policy) {
+        return 0 != (mPolicies & (1L << policy));
+    }
+
     @Override
     public String toString() {
         return "Score(" + mLegacyInt + ")";
diff --git a/framework/src/android/net/UidRange.java b/framework/src/android/net/UidRange.java
index 26518d3..bc67c74 100644
--- a/framework/src/android/net/UidRange.java
+++ b/framework/src/android/net/UidRange.java
@@ -20,8 +20,11 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.os.UserHandle;
+import android.util.ArraySet;
+import android.util.Range;
 
 import java.util.Collection;
+import java.util.Set;
 
 /**
  * An inclusive range of UIDs.
@@ -149,4 +152,32 @@
         }
         return false;
     }
+
+    /**
+     *  Convert a set of {@code Range<Integer>} to a set of {@link UidRange}.
+     */
+    @Nullable
+    public static ArraySet<UidRange> fromIntRanges(@Nullable Set<Range<Integer>> ranges) {
+        if (null == ranges) return null;
+
+        final ArraySet<UidRange> uids = new ArraySet<>();
+        for (Range<Integer> range : ranges) {
+            uids.add(new UidRange(range.getLower(), range.getUpper()));
+        }
+        return uids;
+    }
+
+    /**
+     *  Convert a set of {@link UidRange} to a set of {@code Range<Integer>}.
+     */
+    @Nullable
+    public static ArraySet<Range<Integer>> toIntRanges(@Nullable Set<UidRange> ranges) {
+        if (null == ranges) return null;
+
+        final ArraySet<Range<Integer>> uids = new ArraySet<>();
+        for (UidRange range : ranges) {
+            uids.add(new Range<Integer>(range.start, range.stop));
+        }
+        return uids;
+    }
 }