Merge "libbinder: remove 32-bit ABI support"
diff --git a/cmds/servicemanager/Android.bp b/cmds/servicemanager/Android.bp
index d73a30b..fb69513 100644
--- a/cmds/servicemanager/Android.bp
+++ b/cmds/servicemanager/Android.bp
@@ -93,9 +93,22 @@
         libfuzzer_options: [
             "max_len=50000",
         ],
-        cc: [
-            "smoreland@google.com",
-            "waghpawan@google.com",
+    },
+}
+
+// Adding this new fuzzer to test the corpus generated by record_binder
+cc_fuzz {
+    name: "servicemanager_test_fuzzer",
+    defaults: [
+        "servicemanager_defaults",
+        "service_fuzzer_defaults",
+    ],
+    host_supported: true,
+    srcs: ["fuzzers/ServiceManagerTestFuzzer.cpp"],
+    fuzz_config: {
+        libfuzzer_options: [
+            "max_len=50000",
         ],
     },
+    corpus: ["fuzzers/servicemamanager_fuzzer_corpus/*"],
 }
diff --git a/cmds/servicemanager/fuzzers/ServiceManagerTestFuzzer.cpp b/cmds/servicemanager/fuzzers/ServiceManagerTestFuzzer.cpp
new file mode 100644
index 0000000..e19b6eb
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/ServiceManagerTestFuzzer.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2023 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 <fuzzbinder/libbinder_driver.h>
+#include <utils/StrongPointer.h>
+
+#include "Access.h"
+#include "ServiceManager.h"
+
+using ::android::Access;
+using ::android::Parcel;
+using ::android::ServiceManager;
+using ::android::sp;
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+    FuzzedDataProvider provider(data, size);
+    auto accessPtr = std::make_unique<Access>();
+    auto serviceManager = sp<ServiceManager>::make(std::move(accessPtr));
+
+    // Reserved bytes
+    provider.ConsumeBytes<uint8_t>(8);
+    uint32_t code = provider.ConsumeIntegral<uint32_t>();
+    uint32_t flag = provider.ConsumeIntegral<uint32_t>();
+    std::vector<uint8_t> parcelData = provider.ConsumeRemainingBytes<uint8_t>();
+
+    Parcel inputParcel;
+    inputParcel.setData(parcelData.data(), parcelData.size());
+
+    Parcel reply;
+    serviceManager->transact(code, inputParcel, &reply, flag);
+
+    serviceManager->clear();
+
+    return 0;
+}
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_1 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_1
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_1
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_10 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_10
new file mode 100644
index 0000000..07319f8
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_10
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_11 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_11
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_11
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_12 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_12
new file mode 100644
index 0000000..07319f8
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_12
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_13 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_13
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_13
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_14 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_14
new file mode 100644
index 0000000..07319f8
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_14
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_15 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_15
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_15
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_16 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_16
new file mode 100644
index 0000000..07319f8
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_16
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_17 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_17
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_17
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_18 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_18
new file mode 100644
index 0000000..88ad474
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_18
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_19 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_19
new file mode 100644
index 0000000..fae15a2
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_19
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_2 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_2
new file mode 100644
index 0000000..e69ab49
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_2
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_20 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_20
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_20
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_21 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_21
new file mode 100644
index 0000000..88ad474
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_21
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_22 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_22
new file mode 100644
index 0000000..fae15a2
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_22
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_23 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_23
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_23
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_24 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_24
new file mode 100644
index 0000000..88ad474
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_24
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_25 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_25
new file mode 100644
index 0000000..fae15a2
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_25
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_26 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_26
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_26
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_27 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_27
new file mode 100644
index 0000000..88ad474
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_27
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_28 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_28
new file mode 100644
index 0000000..fae15a2
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_28
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_29 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_29
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_29
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_3 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_3
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_3
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_30 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_30
new file mode 100644
index 0000000..88ad474
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_30
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_31 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_31
new file mode 100644
index 0000000..fae15a2
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_31
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_32 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_32
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_32
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_33 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_33
new file mode 100644
index 0000000..88ad474
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_33
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_34 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_34
new file mode 100644
index 0000000..fae15a2
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_34
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_35 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_35
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_35
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_36 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_36
new file mode 100644
index 0000000..88ad474
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_36
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_37 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_37
new file mode 100644
index 0000000..fae15a2
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_37
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_38 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_38
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_38
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_39 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_39
new file mode 100644
index 0000000..b326907
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_39
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_4 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_4
new file mode 100644
index 0000000..05b27bf
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_4
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_40 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_40
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_40
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_41 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_41
new file mode 100644
index 0000000..b326907
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_41
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_42 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_42
new file mode 100644
index 0000000..cdaa1f0
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_42
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_43 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_43
new file mode 100644
index 0000000..ff0941b
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_43
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_44 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_44
new file mode 100644
index 0000000..cdaa1f0
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_44
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_45 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_45
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_45
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_46 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_46
new file mode 100644
index 0000000..7e5f948
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_46
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_5 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_5
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_5
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_6 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_6
new file mode 100644
index 0000000..07319f8
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_6
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_7 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_7
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_7
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_8 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_8
new file mode 100644
index 0000000..07319f8
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_8
Binary files differ
diff --git a/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_9 b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_9
new file mode 100644
index 0000000..39e5104
--- /dev/null
+++ b/cmds/servicemanager/fuzzers/servicemanager_fuzzer_corpus/Transaction_9
Binary files differ
diff --git a/cmds/servicemanager/servicemanager.recovery.rc b/cmds/servicemanager/servicemanager.recovery.rc
index b927c01..6354fd7 100644
--- a/cmds/servicemanager/servicemanager.recovery.rc
+++ b/cmds/servicemanager/servicemanager.recovery.rc
@@ -1,5 +1,6 @@
 service servicemanager /system/bin/servicemanager
     disabled
     group system readproc
+    user root
     onrestart setprop servicemanager.ready false
     seclabel u:r:servicemanager:s0
diff --git a/libs/binder/IServiceManager.cpp b/libs/binder/IServiceManager.cpp
index 2408307..d4ef0b7 100644
--- a/libs/binder/IServiceManager.cpp
+++ b/libs/binder/IServiceManager.cpp
@@ -412,13 +412,11 @@
             // command, so we hang indefinitely.
             std::unique_lock<std::mutex> lock(waiter->mMutex);
             using std::literals::chrono_literals::operator""s;
-            waiter->mCv.wait_for(lock, 1s, [&] {
-                return waiter->mBinder != nullptr;
-            });
+            waiter->mCv.wait_for(lock, 2s, [&] { return waiter->mBinder != nullptr; });
             if (waiter->mBinder != nullptr) return waiter->mBinder;
         }
 
-        ALOGW("Waited one second for %s (is service started? Number of threads started in the "
+        ALOGW("Waited two seconds for %s (is service started? Number of threads started in the "
               "threadpool: %zu. Are binder threads started and available?)",
               name.c_str(), ProcessState::self()->getThreadPoolMaxTotalThreadCount());
 
diff --git a/libs/binder/LazyServiceRegistrar.cpp b/libs/binder/LazyServiceRegistrar.cpp
index f66993f..7644806 100644
--- a/libs/binder/LazyServiceRegistrar.cpp
+++ b/libs/binder/LazyServiceRegistrar.cpp
@@ -324,6 +324,10 @@
     return *registrarInstance;
 }
 
+LazyServiceRegistrar LazyServiceRegistrar::createExtraTestInstance() {
+    return LazyServiceRegistrar();
+}
+
 status_t LazyServiceRegistrar::registerService(const sp<IBinder>& service, const std::string& name,
                                                bool allowIsolated, int dumpFlags) {
     if (!mClientCC->registerService(service, name, allowIsolated, dumpFlags)) {
diff --git a/libs/binder/RecordedTransaction.cpp b/libs/binder/RecordedTransaction.cpp
index 1c76135..44a9e3b 100644
--- a/libs/binder/RecordedTransaction.cpp
+++ b/libs/binder/RecordedTransaction.cpp
@@ -161,17 +161,6 @@
 constexpr uint32_t kMaxChunkDataSize = 0xfffffff0;
 typedef uint64_t transaction_checksum_t;
 
-static android::status_t readChunkDescriptor(borrowed_fd fd, ChunkDescriptor* chunkOut,
-                                             transaction_checksum_t* sum) {
-    if (!android::base::ReadFully(fd, chunkOut, sizeof(ChunkDescriptor))) {
-        LOG(ERROR) << "Failed to read Chunk Descriptor from fd " << fd.get();
-        return android::UNKNOWN_ERROR;
-    }
-
-    *sum ^= *reinterpret_cast<transaction_checksum_t*>(chunkOut);
-    return android::NO_ERROR;
-}
-
 std::optional<RecordedTransaction> RecordedTransaction::fromFile(const unique_fd& fd) {
     RecordedTransaction t;
     ChunkDescriptor chunk;
@@ -192,11 +181,13 @@
             LOG(ERROR) << "Not enough file remains to contain expected chunk descriptor";
             return std::nullopt;
         }
-        transaction_checksum_t checksum = 0;
-        if (NO_ERROR != readChunkDescriptor(fd, &chunk, &checksum)) {
-            LOG(ERROR) << "Failed to read chunk descriptor.";
+
+        if (!android::base::ReadFully(fd, &chunk, sizeof(ChunkDescriptor))) {
+            LOG(ERROR) << "Failed to read ChunkDescriptor from fd " << fd.get() << ". "
+                       << strerror(errno);
             return std::nullopt;
         }
+        transaction_checksum_t checksum = *reinterpret_cast<transaction_checksum_t*>(&chunk);
 
         fdCurrentPosition = lseek(fd.get(), 0, SEEK_CUR);
         if (fdCurrentPosition == -1) {
diff --git a/libs/binder/RpcState.cpp b/libs/binder/RpcState.cpp
index ed3ce24..03fa699 100644
--- a/libs/binder/RpcState.cpp
+++ b/libs/binder/RpcState.cpp
@@ -928,7 +928,7 @@
                                           transactionData.size() -
                                                   offsetof(RpcWireTransaction, data)};
         Span<const uint32_t> objectTableSpan;
-        if (session->getProtocolVersion().value() >
+        if (session->getProtocolVersion().value() >=
             RPC_WIRE_PROTOCOL_VERSION_RPC_HEADER_FEATURE_EXPLICIT_PARCEL_SIZE) {
             std::optional<Span<const uint8_t>> objectTableBytes =
                     parcelSpan.splitOff(transaction->parcelDataSize);
diff --git a/libs/binder/include/binder/Binder.h b/libs/binder/include/binder/Binder.h
index d960a0b..744da0f 100644
--- a/libs/binder/include/binder/Binder.h
+++ b/libs/binder/include/binder/Binder.h
@@ -105,12 +105,6 @@
     [[nodiscard]] status_t setRpcClientDebug(android::base::unique_fd clientFd,
                                              const sp<IBinder>& keepAliveBinder);
 
-    // Start recording transactions to the unique_fd in data.
-    // See RecordedTransaction.h for more details.
-    [[nodiscard]] status_t startRecordingTransactions(const Parcel& data);
-    // Stop the current recording.
-    [[nodiscard]] status_t stopRecordingTransactions();
-
 protected:
     virtual             ~BBinder();
 
@@ -131,6 +125,8 @@
 
     [[nodiscard]] status_t setRpcClientDebug(const Parcel& data);
     void removeRpcServerLink(const sp<RpcServerLink>& link);
+    [[nodiscard]] status_t startRecordingTransactions(const Parcel& data);
+    [[nodiscard]] status_t stopRecordingTransactions();
 
     std::atomic<Extras*> mExtras;
 
diff --git a/libs/binder/include/binder/LazyServiceRegistrar.h b/libs/binder/include/binder/LazyServiceRegistrar.h
index 2e22b84..bda3d19 100644
--- a/libs/binder/include/binder/LazyServiceRegistrar.h
+++ b/libs/binder/include/binder/LazyServiceRegistrar.h
@@ -93,7 +93,17 @@
       */
      void reRegister();
 
-   private:
+     /**
+      * Create a second instance of lazy service registrar.
+      *
+      * WARNING: dangerous! DO NOT USE THIS - LazyServiceRegistrar
+      * should be single-instanced, so that the service will only
+      * shut down when all services are unused. A separate instance
+      * is only used to test race conditions.
+      */
+     static LazyServiceRegistrar createExtraTestInstance();
+
+ private:
      std::shared_ptr<internal::ClientCounterCallback> mClientCC;
      LazyServiceRegistrar();
 };
diff --git a/libs/binder/include/binder/RpcSession.h b/libs/binder/include/binder/RpcSession.h
index a323feb..cb64603 100644
--- a/libs/binder/include/binder/RpcSession.h
+++ b/libs/binder/include/binder/RpcSession.h
@@ -37,9 +37,9 @@
 class RpcTransport;
 class FdTrigger;
 
-constexpr uint32_t RPC_WIRE_PROTOCOL_VERSION_NEXT = 1;
+constexpr uint32_t RPC_WIRE_PROTOCOL_VERSION_NEXT = 2;
 constexpr uint32_t RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL = 0xF0000000;
-constexpr uint32_t RPC_WIRE_PROTOCOL_VERSION = RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL;
+constexpr uint32_t RPC_WIRE_PROTOCOL_VERSION = 1;
 
 // Starting with this version:
 //
diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index 56f4ac7..cad364d 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp
@@ -67,6 +67,28 @@
 }
 
 cc_test {
+    name: "binderRecordReplayTest",
+    srcs: ["binderRecordReplayTest.cpp"],
+    shared_libs: [
+        "libbinder",
+        "libcutils",
+        "libutils",
+    ],
+    static_libs: [
+        "binderRecordReplayTestIface-cpp",
+    ],
+    test_suites: ["general-tests"],
+}
+
+aidl_interface {
+    name: "binderRecordReplayTestIface",
+    unstable: true,
+    srcs: [
+        "IBinderRecordReplayTest.aidl",
+    ],
+}
+
+cc_test {
     name: "binderLibTest",
     defaults: ["binder_test_defaults"],
 
diff --git a/libs/binder/tests/IBinderRecordReplayTest.aidl b/libs/binder/tests/IBinderRecordReplayTest.aidl
new file mode 100644
index 0000000..3c8c722
--- /dev/null
+++ b/libs/binder/tests/IBinderRecordReplayTest.aidl
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2023 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.
+ */
+
+interface IBinderRecordReplayTest {
+    void setInt(int input);
+    int getInt();
+}
diff --git a/libs/binder/tests/binderRecordReplayTest.cpp b/libs/binder/tests/binderRecordReplayTest.cpp
new file mode 100644
index 0000000..55148ac
--- /dev/null
+++ b/libs/binder/tests/binderRecordReplayTest.cpp
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2023 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 <BnBinderRecordReplayTest.h>
+#include <android-base/logging.h>
+#include <android-base/unique_fd.h>
+#include <binder/Binder.h>
+#include <binder/BpBinder.h>
+#include <binder/IBinder.h>
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <binder/RecordedTransaction.h>
+#include <gtest/gtest.h>
+
+#include <sys/prctl.h>
+
+using namespace android;
+using android::binder::Status;
+using android::binder::debug::RecordedTransaction;
+
+const String16 kServerName = String16("binderRecordReplay");
+
+class MyRecordReplay : public BnBinderRecordReplayTest {
+public:
+    Status setInt(int input) {
+        mInt = input;
+        return Status::ok();
+    }
+    Status getInt(int* output) {
+        *output = mInt;
+        return Status::ok();
+    }
+
+private:
+    int mInt = 0;
+};
+
+TEST(BinderClearBuf, RecordReplayRepeatInt) {
+    // get the remote service
+    sp<IBinder> binder = defaultServiceManager()->getService(kServerName);
+    ASSERT_NE(nullptr, binder);
+    sp<IBinderRecordReplayTest> iface = interface_cast<IBinderRecordReplayTest>(binder);
+    sp<BpBinder> bpBinder = binder->remoteBinder();
+    ASSERT_NE(nullptr, bpBinder);
+
+    base::unique_fd fd(
+            open("/data/local/tmp/binderRecordReplayTest.rec", O_RDWR | O_CREAT | O_CLOEXEC, 0666));
+    ASSERT_TRUE(fd.ok());
+
+    // record a transaction
+    bpBinder->startRecordingBinder(fd);
+    EXPECT_TRUE(iface->setInt(3).isOk());
+    bpBinder->stopRecordingBinder();
+
+    // test transaction does the thing we expect it to do
+    int output;
+    EXPECT_TRUE(iface->getInt(&output).isOk());
+    EXPECT_EQ(output, 3);
+
+    // write over the existing state
+    EXPECT_TRUE(iface->setInt(5).isOk());
+    EXPECT_TRUE(iface->getInt(&output).isOk());
+    EXPECT_EQ(output, 5);
+
+    // replay transaction
+    ASSERT_EQ(0, lseek(fd.get(), 0, SEEK_SET));
+    std::optional<RecordedTransaction> transaction = RecordedTransaction::fromFile(fd);
+    ASSERT_NE(transaction, std::nullopt);
+
+    // TODO: move logic to replay RecordedTransaction into RecordedTransaction
+    Parcel data;
+    data.setData(transaction->getDataParcel().data(), transaction->getDataParcel().dataSize());
+    status_t status = binder->remoteBinder()->transact(transaction->getCode(), data, nullptr,
+                                                       transaction->getFlags());
+
+    // make sure recording does the thing we expect it to do
+    EXPECT_EQ(OK, status);
+    EXPECT_TRUE(iface->getInt(&output).isOk());
+    EXPECT_EQ(output, 3);
+
+    // TODO: we should also make sure we can convert the recording to a fuzzer
+    // corpus entry, and we will be able to replay it in the same way
+}
+
+int main(int argc, char** argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+
+    if (fork() == 0) {
+        prctl(PR_SET_PDEATHSIG, SIGHUP);
+
+        auto server = sp<MyRecordReplay>::make();
+        android::defaultServiceManager()->addService(kServerName, server.get());
+
+        IPCThreadState::self()->joinThreadPool(true);
+        exit(1); // should not reach
+    }
+
+    // not racey, but getService sleeps for 1s
+    usleep(100000);
+
+    return RUN_ALL_TESTS();
+}
diff --git a/libs/binder/tests/binderRpcWireProtocolTest.cpp b/libs/binder/tests/binderRpcWireProtocolTest.cpp
index 3dab2c7..642cea4 100644
--- a/libs/binder/tests/binderRpcWireProtocolTest.cpp
+++ b/libs/binder/tests/binderRpcWireProtocolTest.cpp
@@ -237,14 +237,25 @@
     checkRepr(kCurrentRepr, 0);
 }
 
+TEST(RpcWire, V1) {
+    checkRepr(kCurrentRepr, 1);
+}
+
 TEST(RpcWire, CurrentVersion) {
     checkRepr(kCurrentRepr, RPC_WIRE_PROTOCOL_VERSION);
 }
 
-static_assert(RPC_WIRE_PROTOCOL_VERSION == RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL,
+static_assert(RPC_WIRE_PROTOCOL_VERSION == 1,
               "If the binder wire protocol is updated, this test should test additional versions. "
               "The binder wire protocol should only be updated on upstream AOSP.");
 
+TEST(RpcWire, NextIsPlusOneReminder) {
+    if (RPC_WIRE_PROTOCOL_VERSION != RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL) {
+        EXPECT_EQ(RPC_WIRE_PROTOCOL_VERSION + 1, RPC_WIRE_PROTOCOL_VERSION_NEXT)
+                << "Make sure to note what the next version should be.";
+    }
+}
+
 TEST(RpcWire, ReleaseBranchHasFrozenRpcWireProtocol) {
     if (RPC_WIRE_PROTOCOL_VERSION == RPC_WIRE_PROTOCOL_VERSION_EXPERIMENTAL) {
         EXPECT_FALSE(base::GetProperty("ro.build.version.codename", "") == "REL")