diff --git a/include/binder/unique_fd.h b/include/binder/unique_fd.h
new file mode 120000
index 0000000..433c968
--- /dev/null
+++ b/include/binder/unique_fd.h
@@ -0,0 +1 @@
+../../libs/binder/include/binder/unique_fd.h
\ No newline at end of file
diff --git a/include/input/InputTransport.h b/include/input/InputTransport.h
index 4f53c36..59b9495 100644
--- a/include/input/InputTransport.h
+++ b/include/input/InputTransport.h
@@ -240,7 +240,7 @@
                                                 android::base::unique_fd fd, sp<IBinder> token);
     InputChannel() = default;
     InputChannel(const InputChannel& other)
-          : mName(other.mName), mFd(::dup(other.mFd)), mToken(other.mToken){};
+          : mName(other.mName), mFd(other.dupFd()), mToken(other.mToken){};
     InputChannel(const std::string name, android::base::unique_fd fd, sp<IBinder> token);
     ~InputChannel() override;
     /**
@@ -310,7 +310,7 @@
         if (fstat(mFd.get(), &lhs) != 0) {
             return false;
         }
-        if (fstat(inputChannel.getFd(), &rhs) != 0) {
+        if (fstat(inputChannel.getFd().get(), &rhs) != 0) {
             return false;
         }
         // If file descriptors are pointing to same inode they are duplicated fds.
@@ -322,7 +322,7 @@
     base::unique_fd dupFd() const;
 
     std::string mName;
-    android::base::unique_fd mFd;
+    base::unique_fd mFd;
 
     sp<IBinder> mToken;
 };
diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index f90c618..eccd5db 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp
@@ -92,6 +92,7 @@
         "TextOutput.cpp",
         "Trace.cpp",
         "Utils.cpp",
+        "file.cpp",
     ],
 
     shared_libs: [
@@ -653,4 +654,7 @@
         "libutils",
         "android.debug_aidl-cpp",
     ],
+    static_libs: [
+        "libc++fs",
+    ],
 }
diff --git a/libs/binder/Binder.cpp b/libs/binder/Binder.cpp
index 301dbf6..c57c9cd 100644
--- a/libs/binder/Binder.cpp
+++ b/libs/binder/Binder.cpp
@@ -19,7 +19,6 @@
 #include <atomic>
 #include <set>
 
-#include <android-base/unique_fd.h>
 #include <binder/BpBinder.h>
 #include <binder/IInterface.h>
 #include <binder/IPCThreadState.h>
@@ -28,6 +27,7 @@
 #include <binder/Parcel.h>
 #include <binder/RecordedTransaction.h>
 #include <binder/RpcServer.h>
+#include <binder/unique_fd.h>
 #include <pthread.h>
 
 #include <inttypes.h>
@@ -43,6 +43,8 @@
 
 namespace android {
 
+using android::binder::unique_fd;
+
 constexpr uid_t kUidRoot = 0;
 
 // Service implementations inherit from BBinder and IBinder, and this is frozen
@@ -167,8 +169,7 @@
     return OK;
 }
 
-status_t IBinder::setRpcClientDebug(android::base::unique_fd socketFd,
-                                    const sp<IBinder>& keepAliveBinder) {
+status_t IBinder::setRpcClientDebug(unique_fd socketFd, const sp<IBinder>& keepAliveBinder) {
     if (!kEnableRpcDevServers) {
         ALOGW("setRpcClientDebug disallowed because RPC is not enabled");
         return INVALID_OPERATION;
@@ -273,7 +274,7 @@
     std::set<sp<RpcServerLink>> mRpcServerLinks;
     BpBinder::ObjectManager mObjects;
 
-    android::base::unique_fd mRecordingFd;
+    unique_fd mRecordingFd;
 };
 
 // ---------------------------------------------------------------------------
@@ -640,7 +641,7 @@
     }
     status_t status;
     bool hasSocketFd;
-    android::base::unique_fd clientFd;
+    unique_fd clientFd;
 
     if (status = data.readBool(&hasSocketFd); status != OK) return status;
     if (hasSocketFd) {
@@ -652,8 +653,7 @@
     return setRpcClientDebug(std::move(clientFd), keepAliveBinder);
 }
 
-status_t BBinder::setRpcClientDebug(android::base::unique_fd socketFd,
-                                    const sp<IBinder>& keepAliveBinder) {
+status_t BBinder::setRpcClientDebug(unique_fd socketFd, const sp<IBinder>& keepAliveBinder) {
     if (!kEnableRpcDevServers) {
         ALOGW("%s: disallowed because RPC is not enabled", __PRETTY_FUNCTION__);
         return INVALID_OPERATION;
diff --git a/libs/binder/BpBinder.cpp b/libs/binder/BpBinder.cpp
index 49038b1..42dd691 100644
--- a/libs/binder/BpBinder.cpp
+++ b/libs/binder/BpBinder.cpp
@@ -27,14 +27,15 @@
 #include <stdio.h>
 
 #include "BuildFlags.h"
-
-#include <android-base/file.h>
+#include "file.h"
 
 //#undef ALOGV
 //#define ALOGV(...) fprintf(stderr, __VA_ARGS__)
 
 namespace android {
 
+using android::binder::unique_fd;
+
 // ---------------------------------------------------------------------------
 
 RpcMutex BpBinder::sTrackingLock;
@@ -318,7 +319,7 @@
     return transact(PING_TRANSACTION, data, &reply);
 }
 
-status_t BpBinder::startRecordingBinder(const android::base::unique_fd& fd) {
+status_t BpBinder::startRecordingBinder(const unique_fd& fd) {
     Parcel send, reply;
     send.writeUniqueFileDescriptor(fd);
     return transact(START_RECORDING_TRANSACTION, send, &reply);
diff --git a/libs/binder/FdTrigger.cpp b/libs/binder/FdTrigger.cpp
index 895690f..455a433 100644
--- a/libs/binder/FdTrigger.cpp
+++ b/libs/binder/FdTrigger.cpp
@@ -23,6 +23,7 @@
 
 #include <binder/Functional.h>
 
+#include "FdUtils.h"
 #include "RpcState.h"
 #include "Utils.h"
 
@@ -33,7 +34,7 @@
 std::unique_ptr<FdTrigger> FdTrigger::make() {
     auto ret = std::make_unique<FdTrigger>();
 #ifndef BINDER_RPC_SINGLE_THREADED
-    if (!android::base::Pipe(&ret->mRead, &ret->mWrite)) {
+    if (!binder::Pipe(&ret->mRead, &ret->mWrite)) {
         ALOGE("Could not create pipe %s", strerror(errno));
         return nullptr;
     }
diff --git a/libs/binder/FdTrigger.h b/libs/binder/FdTrigger.h
index dba1dc9..e4a0283 100644
--- a/libs/binder/FdTrigger.h
+++ b/libs/binder/FdTrigger.h
@@ -17,10 +17,10 @@
 
 #include <memory>
 
-#include <android-base/unique_fd.h>
 #include <utils/Errors.h>
 
 #include <binder/RpcTransport.h>
+#include <binder/unique_fd.h>
 
 namespace android {
 
@@ -61,8 +61,8 @@
 #ifdef BINDER_RPC_SINGLE_THREADED
     bool mTriggered = false;
 #else
-    base::unique_fd mWrite;
-    base::unique_fd mRead;
+    binder::unique_fd mWrite;
+    binder::unique_fd mRead;
 #endif
 };
 } // namespace android
diff --git a/libs/binder/FdUtils.h b/libs/binder/FdUtils.h
new file mode 100644
index 0000000..52ae487
--- /dev/null
+++ b/libs/binder/FdUtils.h
@@ -0,0 +1,99 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <binder/unique_fd.h>
+
+#if defined(_WIN32) || defined(__TRUSTY__)
+// Pipe and Socketpair are missing there
+#elif !defined(BINDER_NO_LIBBASE)
+
+namespace android::binder {
+using android::base::Pipe;
+using android::base::Socketpair;
+} // namespace android::binder
+
+#else // BINDER_NO_LIBBASE
+
+#include <sys/socket.h>
+
+namespace android::binder {
+
+// Inline functions, so that they can be used header-only.
+
+// See pipe(2).
+// This helper hides the details of converting to unique_fd, and also hides the
+// fact that macOS doesn't support O_CLOEXEC or O_NONBLOCK directly.
+inline bool Pipe(unique_fd* read, unique_fd* write, int flags = O_CLOEXEC) {
+    int pipefd[2];
+
+#if defined(__APPLE__)
+    if (flags & ~(O_CLOEXEC | O_NONBLOCK)) {
+        return false;
+    }
+    if (pipe(pipefd) != 0) {
+        return false;
+    }
+
+    if (flags & O_CLOEXEC) {
+        if (fcntl(pipefd[0], F_SETFD, FD_CLOEXEC) != 0 ||
+            fcntl(pipefd[1], F_SETFD, FD_CLOEXEC) != 0) {
+            close(pipefd[0]);
+            close(pipefd[1]);
+            return false;
+        }
+    }
+    if (flags & O_NONBLOCK) {
+        if (fcntl(pipefd[0], F_SETFL, O_NONBLOCK) != 0 ||
+            fcntl(pipefd[1], F_SETFL, O_NONBLOCK) != 0) {
+            close(pipefd[0]);
+            close(pipefd[1]);
+            return false;
+        }
+    }
+#else
+    if (pipe2(pipefd, flags) != 0) {
+        return false;
+    }
+#endif
+
+    read->reset(pipefd[0]);
+    write->reset(pipefd[1]);
+    return true;
+}
+
+// See socketpair(2).
+// This helper hides the details of converting to unique_fd.
+inline bool Socketpair(int domain, int type, int protocol, unique_fd* left, unique_fd* right) {
+    int sockfd[2];
+    if (socketpair(domain, type, protocol, sockfd) != 0) {
+        return false;
+    }
+    left->reset(sockfd[0]);
+    right->reset(sockfd[1]);
+    return true;
+}
+
+// See socketpair(2).
+// This helper hides the details of converting to unique_fd.
+inline bool Socketpair(int type, unique_fd* left, unique_fd* right) {
+    return Socketpair(AF_UNIX, type, 0, left, right);
+}
+
+} // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/OS.h b/libs/binder/OS.h
index bb7caa9..c5f0730 100644
--- a/libs/binder/OS.h
+++ b/libs/binder/OS.h
@@ -18,13 +18,13 @@
 #include <stddef.h>
 #include <cstdint>
 
-#include <android-base/unique_fd.h>
 #include <binder/RpcTransport.h>
+#include <binder/unique_fd.h>
 #include <utils/Errors.h>
 
 namespace android::binder::os {
 
-status_t setNonBlocking(android::base::borrowed_fd fd);
+status_t setNonBlocking(borrowed_fd fd);
 
 status_t getRandomBytes(uint8_t* data, size_t size);
 
@@ -32,13 +32,11 @@
 
 std::unique_ptr<RpcTransportCtxFactory> makeDefaultRpcTransportCtxFactory();
 
-ssize_t sendMessageOnSocket(
-        const RpcTransportFd& socket, iovec* iovs, int niovs,
-        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds);
+ssize_t sendMessageOnSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
+                            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds);
 
-ssize_t receiveMessageFromSocket(
-        const RpcTransportFd& socket, iovec* iovs, int niovs,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds);
+ssize_t receiveMessageFromSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
+                                 std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds);
 
 uint64_t GetThreadId();
 
diff --git a/libs/binder/OS_unix_base.cpp b/libs/binder/OS_unix_base.cpp
index a3cf117..ca998d4 100644
--- a/libs/binder/OS_unix_base.cpp
+++ b/libs/binder/OS_unix_base.cpp
@@ -16,18 +16,21 @@
 
 #include "OS.h"
 #include "Utils.h"
+#include "file.h"
 
-#include <android-base/file.h>
 #include <binder/RpcTransportRaw.h>
 #include <log/log.h>
 #include <string.h>
+#include <sys/socket.h>
+
+using android::binder::ReadFully;
 
 namespace android::binder::os {
 
 // Linux kernel supports up to 253 (from SCM_MAX_FD) for unix sockets.
 constexpr size_t kMaxFdsPerMsg = 253;
 
-status_t setNonBlocking(android::base::borrowed_fd fd) {
+status_t setNonBlocking(borrowed_fd fd) {
     int flags = TEMP_FAILURE_RETRY(fcntl(fd.get(), F_GETFL));
     if (flags == -1) {
         PLOGE("Failed setNonBlocking: Could not get flags for fd");
@@ -41,13 +44,12 @@
 }
 
 status_t getRandomBytes(uint8_t* data, size_t size) {
-    int ret = TEMP_FAILURE_RETRY(open("/dev/urandom", O_RDONLY | O_CLOEXEC | O_NOFOLLOW));
-    if (ret == -1) {
+    unique_fd fd(TEMP_FAILURE_RETRY(open("/dev/urandom", O_RDONLY | O_CLOEXEC | O_NOFOLLOW)));
+    if (!fd.ok()) {
         return -errno;
     }
 
-    base::unique_fd fd(ret);
-    if (!base::ReadFully(fd, data, size)) {
+    if (!ReadFully(fd, data, size)) {
         return -errno;
     }
     return OK;
@@ -67,9 +69,8 @@
     return RpcTransportCtxFactoryRaw::make();
 }
 
-ssize_t sendMessageOnSocket(
-        const RpcTransportFd& socket, iovec* iovs, int niovs,
-        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+ssize_t sendMessageOnSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
+                            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     if (ancillaryFds != nullptr && !ancillaryFds->empty()) {
         if (ancillaryFds->size() > kMaxFdsPerMsg) {
             errno = EINVAL;
@@ -112,9 +113,8 @@
     return TEMP_FAILURE_RETRY(sendmsg(socket.fd.get(), &msg, MSG_NOSIGNAL));
 }
 
-ssize_t receiveMessageFromSocket(
-        const RpcTransportFd& socket, iovec* iovs, int niovs,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+ssize_t receiveMessageFromSocket(const RpcTransportFd& socket, iovec* iovs, int niovs,
+                                 std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     if (ancillaryFds != nullptr) {
         int fdBuffer[kMaxFdsPerMsg];
         alignas(struct cmsghdr) char msgControlBuf[CMSG_SPACE(sizeof(fdBuffer))];
@@ -140,7 +140,7 @@
                 size_t fdCount = dataLen / sizeof(int);
                 ancillaryFds->reserve(ancillaryFds->size() + fdCount);
                 for (size_t i = 0; i < fdCount; i++) {
-                    ancillaryFds->emplace_back(base::unique_fd(fdBuffer[i]));
+                    ancillaryFds->emplace_back(unique_fd(fdBuffer[i]));
                 }
                 break;
             }
diff --git a/libs/binder/OWNERS b/libs/binder/OWNERS
index bb17683..a70b558 100644
--- a/libs/binder/OWNERS
+++ b/libs/binder/OWNERS
@@ -1,4 +1,5 @@
 # Bug component: 32456
-maco@google.com
+
 smoreland@google.com
-tkjos@google.com
+tkjos@google.com # kernel
+maco@google.com # historical
diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index 94f3631..47e3f91 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -93,6 +93,8 @@
 namespace android {
 
 using namespace android::binder::impl;
+using binder::borrowed_fd;
+using binder::unique_fd;
 
 // many things compile this into prebuilts on the stack
 #ifdef __LP64__
@@ -171,7 +173,7 @@
 }
 #endif // BINDER_WITH_KERNEL_IPC
 
-static int toRawFd(const std::variant<base::unique_fd, base::borrowed_fd>& v) {
+static int toRawFd(const std::variant<unique_fd, borrowed_fd>& v) {
     return std::visit([](const auto& fd) { return fd.get(); }, v);
 }
 
@@ -626,7 +628,7 @@
                 if (status_t status = binder::os::dupFileDescriptor(oldFd, &newFd); status != OK) {
                     ALOGW("Failed to duplicate file descriptor %d: %s", oldFd, strerror(-status));
                 }
-                rpcFields->mFds->emplace_back(base::unique_fd(newFd));
+                rpcFields->mFds->emplace_back(unique_fd(newFd));
                 // Fixup the index in the data.
                 mDataPos = newDataPos + 4;
                 if (status_t status = writeInt32(rpcFields->mFds->size() - 1); status != OK) {
@@ -1206,9 +1208,16 @@
                         const std::unique_ptr<std::vector<std::unique_ptr<std::string>>>& val) { return writeData(val); }
 status_t Parcel::writeUtf8VectorAsUtf16Vector(const std::vector<std::string>& val) { return writeData(val); }
 
-status_t Parcel::writeUniqueFileDescriptorVector(const std::vector<base::unique_fd>& val) { return writeData(val); }
-status_t Parcel::writeUniqueFileDescriptorVector(const std::optional<std::vector<base::unique_fd>>& val) { return writeData(val); }
-status_t Parcel::writeUniqueFileDescriptorVector(const std::unique_ptr<std::vector<base::unique_fd>>& val) { return writeData(val); }
+status_t Parcel::writeUniqueFileDescriptorVector(const std::vector<unique_fd>& val) {
+    return writeData(val);
+}
+status_t Parcel::writeUniqueFileDescriptorVector(const std::optional<std::vector<unique_fd>>& val) {
+    return writeData(val);
+}
+status_t Parcel::writeUniqueFileDescriptorVector(
+        const std::unique_ptr<std::vector<unique_fd>>& val) {
+    return writeData(val);
+}
 
 status_t Parcel::writeStrongBinderVector(const std::vector<sp<IBinder>>& val) { return writeData(val); }
 status_t Parcel::writeStrongBinderVector(const std::optional<std::vector<sp<IBinder>>>& val) { return writeData(val); }
@@ -1261,9 +1270,16 @@
         std::unique_ptr<std::vector<std::unique_ptr<std::string>>>* val) const { return readData(val); }
 status_t Parcel::readUtf8VectorFromUtf16Vector(std::vector<std::string>* val) const { return readData(val); }
 
-status_t Parcel::readUniqueFileDescriptorVector(std::optional<std::vector<base::unique_fd>>* val) const { return readData(val); }
-status_t Parcel::readUniqueFileDescriptorVector(std::unique_ptr<std::vector<base::unique_fd>>* val) const { return readData(val); }
-status_t Parcel::readUniqueFileDescriptorVector(std::vector<base::unique_fd>* val) const { return readData(val); }
+status_t Parcel::readUniqueFileDescriptorVector(std::optional<std::vector<unique_fd>>* val) const {
+    return readData(val);
+}
+status_t Parcel::readUniqueFileDescriptorVector(
+        std::unique_ptr<std::vector<unique_fd>>* val) const {
+    return readData(val);
+}
+status_t Parcel::readUniqueFileDescriptorVector(std::vector<unique_fd>* val) const {
+    return readData(val);
+}
 
 status_t Parcel::readStrongBinderVector(std::optional<std::vector<sp<IBinder>>>* val) const { return readData(val); }
 status_t Parcel::readStrongBinderVector(std::unique_ptr<std::vector<sp<IBinder>>>* val) const { return readData(val); }
@@ -1463,11 +1479,11 @@
 
 status_t Parcel::writeFileDescriptor(int fd, bool takeOwnership) {
     if (auto* rpcFields = maybeRpcFields()) {
-        std::variant<base::unique_fd, base::borrowed_fd> fdVariant;
+        std::variant<unique_fd, borrowed_fd> fdVariant;
         if (takeOwnership) {
-            fdVariant = base::unique_fd(fd);
+            fdVariant = unique_fd(fd);
         } else {
-            fdVariant = base::borrowed_fd(fd);
+            fdVariant = borrowed_fd(fd);
         }
         if (!mAllowFds) {
             return FDS_NOT_ALLOWED;
@@ -1546,7 +1562,7 @@
     return err;
 }
 
-status_t Parcel::writeUniqueFileDescriptor(const base::unique_fd& fd) {
+status_t Parcel::writeUniqueFileDescriptor(const unique_fd& fd) {
     return writeDupFileDescriptor(fd.get());
 }
 
@@ -2349,8 +2365,7 @@
     return fd;
 }
 
-status_t Parcel::readUniqueFileDescriptor(base::unique_fd* val) const
-{
+status_t Parcel::readUniqueFileDescriptor(unique_fd* val) const {
     int got = readFileDescriptor();
 
     if (got == BAD_TYPE) {
@@ -2371,8 +2386,7 @@
     return OK;
 }
 
-status_t Parcel::readUniqueParcelFileDescriptor(base::unique_fd* val) const
-{
+status_t Parcel::readUniqueParcelFileDescriptor(unique_fd* val) const {
     int got = readParcelFileDescriptor();
 
     if (got == BAD_TYPE) {
@@ -2664,8 +2678,7 @@
 status_t Parcel::rpcSetDataReference(
         const sp<RpcSession>& session, const uint8_t* data, size_t dataSize,
         const uint32_t* objectTable, size_t objectTableSize,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds,
-        release_func relFunc) {
+        std::vector<std::variant<unique_fd, borrowed_fd>>&& ancillaryFds, release_func relFunc) {
     // this code uses 'mOwner == nullptr' to understand whether it owns memory
     LOG_ALWAYS_FATAL_IF(relFunc == nullptr, "must provide cleanup function");
 
diff --git a/libs/binder/ParcelFileDescriptor.cpp b/libs/binder/ParcelFileDescriptor.cpp
index 4f8b76f..c3c4874 100644
--- a/libs/binder/ParcelFileDescriptor.cpp
+++ b/libs/binder/ParcelFileDescriptor.cpp
@@ -19,9 +19,11 @@
 namespace android {
 namespace os {
 
+using android::binder::unique_fd;
+
 ParcelFileDescriptor::ParcelFileDescriptor() = default;
 
-ParcelFileDescriptor::ParcelFileDescriptor(android::base::unique_fd fd) : mFd(std::move(fd)) {}
+ParcelFileDescriptor::ParcelFileDescriptor(unique_fd fd) : mFd(std::move(fd)) {}
 
 ParcelFileDescriptor::~ParcelFileDescriptor() = default;
 
diff --git a/libs/binder/ProcessState.cpp b/libs/binder/ProcessState.cpp
index 0344eb0..7de94e3 100644
--- a/libs/binder/ProcessState.cpp
+++ b/libs/binder/ProcessState.cpp
@@ -61,6 +61,7 @@
 namespace android {
 
 using namespace android::binder::impl;
+using android::binder::unique_fd;
 
 class PoolThread : public Thread
 {
@@ -514,8 +515,8 @@
     return mDriverName;
 }
 
-static base::unique_fd open_driver(const char* driver) {
-    auto fd = base::unique_fd(open(driver, O_RDWR | O_CLOEXEC));
+static unique_fd open_driver(const char* driver) {
+    auto fd = unique_fd(open(driver, O_RDWR | O_CLOEXEC));
     if (!fd.ok()) {
         PLOGE("Opening '%s' failed", driver);
         return {};
@@ -563,7 +564,7 @@
         mThreadPoolStarted(false),
         mThreadPoolSeq(1),
         mCallRestriction(CallRestriction::NONE) {
-    base::unique_fd opened = open_driver(driver);
+    unique_fd opened = open_driver(driver);
 
     if (opened.ok()) {
         // mmap the binder, providing a chunk of virtual address space to receive transactions.
diff --git a/libs/binder/RecordedTransaction.cpp b/libs/binder/RecordedTransaction.cpp
index f7b5a55..525ba2e 100644
--- a/libs/binder/RecordedTransaction.cpp
+++ b/libs/binder/RecordedTransaction.cpp
@@ -14,18 +14,23 @@
  * limitations under the License.
  */
 
-#include <android-base/file.h>
-#include <android-base/unique_fd.h>
+#include "file.h"
+
 #include <binder/Functional.h>
 #include <binder/RecordedTransaction.h>
+#include <binder/unique_fd.h>
+
 #include <inttypes.h>
 #include <sys/mman.h>
+#include <sys/stat.h>
 #include <algorithm>
 
 using namespace android::binder::impl;
 using android::Parcel;
-using android::base::borrowed_fd;
-using android::base::unique_fd;
+using android::binder::borrowed_fd;
+using android::binder::ReadFully;
+using android::binder::unique_fd;
+using android::binder::WriteFully;
 using android::binder::debug::RecordedTransaction;
 
 #define PADDING8(s) ((8 - (s) % 8) % 8)
@@ -182,7 +187,7 @@
             return std::nullopt;
         }
 
-        if (!android::base::ReadFully(fd, &chunk, sizeof(ChunkDescriptor))) {
+        if (!ReadFully(fd, &chunk, sizeof(ChunkDescriptor))) {
             ALOGE("Failed to read ChunkDescriptor from fd %d. %s", fd.get(), strerror(errno));
             return std::nullopt;
         }
@@ -317,7 +322,7 @@
     buffer.insert(buffer.end(), checksumBytes, checksumBytes + sizeof(transaction_checksum_t));
 
     // Write buffer to file
-    if (!android::base::WriteFully(fd, buffer.data(), buffer.size())) {
+    if (!WriteFully(fd, buffer.data(), buffer.size())) {
         ALOGE("Failed to write chunk fd %d", fd.get());
         return UNKNOWN_ERROR;
     }
diff --git a/libs/binder/RpcServer.cpp b/libs/binder/RpcServer.cpp
index fefaa81..d9e926a 100644
--- a/libs/binder/RpcServer.cpp
+++ b/libs/binder/RpcServer.cpp
@@ -45,7 +45,8 @@
 constexpr size_t kSessionIdBytes = 32;
 
 using namespace android::binder::impl;
-using base::unique_fd;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
 RpcServer::RpcServer(std::unique_ptr<RpcTransportCtx> ctx) : mCtx(std::move(ctx)) {}
 RpcServer::~RpcServer() {
@@ -166,7 +167,7 @@
     mConnectionFilter = std::move(filter);
 }
 
-void RpcServer::setServerSocketModifier(std::function<void(base::borrowed_fd)>&& modifier) {
+void RpcServer::setServerSocketModifier(std::function<void(borrowed_fd)>&& modifier) {
     RpcMutexLockGuard _l(mLock);
     LOG_ALWAYS_FATAL_IF(mServer.fd.ok(), "Already started");
     mServerSocketModifier = std::move(modifier);
@@ -213,7 +214,7 @@
 status_t RpcServer::recvmsgSocketConnection(const RpcServer& server, RpcTransportFd* out) {
     int zero = 0;
     iovec iov{&zero, sizeof(zero)};
-    std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+    std::vector<std::variant<unique_fd, borrowed_fd>> fds;
 
     ssize_t num_bytes = binder::os::receiveMessageFromSocket(server.mServer, &iov, 1, &fds);
     if (num_bytes < 0) {
@@ -644,8 +645,7 @@
 }
 
 status_t RpcServer::setupExternalServer(
-        base::unique_fd serverFd,
-        std::function<status_t(const RpcServer&, RpcTransportFd*)>&& acceptFn) {
+        unique_fd serverFd, std::function<status_t(const RpcServer&, RpcTransportFd*)>&& acceptFn) {
     RpcMutexLockGuard _l(mLock);
     if (mServer.fd.ok()) {
         ALOGE("Each RpcServer can only have one server.");
@@ -656,7 +656,7 @@
     return OK;
 }
 
-status_t RpcServer::setupExternalServer(base::unique_fd serverFd) {
+status_t RpcServer::setupExternalServer(unique_fd serverFd) {
     return setupExternalServer(std::move(serverFd), &RpcServer::acceptSocketConnection);
 }
 
diff --git a/libs/binder/RpcSession.cpp b/libs/binder/RpcSession.cpp
index cd8f417..16a7f9f 100644
--- a/libs/binder/RpcSession.cpp
+++ b/libs/binder/RpcSession.cpp
@@ -51,7 +51,8 @@
 namespace android {
 
 using namespace android::binder::impl;
-using base::unique_fd;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
 RpcSession::RpcSession(std::unique_ptr<RpcTransportCtx> ctx) : mCtx(std::move(ctx)) {
     LOG_RPC_DETAIL("RpcSession created %p", this);
@@ -157,7 +158,7 @@
 
         int zero = 0;
         iovec iov{&zero, sizeof(zero)};
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+        std::vector<std::variant<unique_fd, borrowed_fd>> fds;
         fds.push_back(std::move(serverFd));
 
         status_t status = mBootstrapTransport->interruptableWriteFully(mShutdownTrigger.get(), &iov,
@@ -186,8 +187,7 @@
     return NAME_NOT_FOUND;
 }
 
-status_t RpcSession::setupPreconnectedClient(base::unique_fd fd,
-                                             std::function<unique_fd()>&& request) {
+status_t RpcSession::setupPreconnectedClient(unique_fd fd, std::function<unique_fd()>&& request) {
     return setupClient([&](const std::vector<uint8_t>& sessionId, bool incoming) -> status_t {
         if (!fd.ok()) {
             fd = request();
diff --git a/libs/binder/RpcState.cpp b/libs/binder/RpcState.cpp
index 008e5d2..fe6e1a3 100644
--- a/libs/binder/RpcState.cpp
+++ b/libs/binder/RpcState.cpp
@@ -39,6 +39,8 @@
 namespace android {
 
 using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
 #if RPC_FLAKE_PRONE
 void rpcMaybeWaitToFlake() {
@@ -355,11 +357,10 @@
     mData.reset(new (std::nothrow) uint8_t[size]);
 }
 
-status_t RpcState::rpcSend(
-        const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
-        const char* what, iovec* iovs, int niovs,
-        const std::optional<SmallFunction<status_t()>>& altPoll,
-        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+status_t RpcState::rpcSend(const sp<RpcSession::RpcConnection>& connection,
+                           const sp<RpcSession>& session, const char* what, iovec* iovs, int niovs,
+                           const std::optional<SmallFunction<status_t()>>& altPoll,
+                           const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     for (int i = 0; i < niovs; i++) {
         LOG_RPC_DETAIL("Sending %s (part %d of %d) on RpcTransport %p: %s",
                        what, i + 1, niovs, connection->rpcTransport.get(),
@@ -380,10 +381,9 @@
     return OK;
 }
 
-status_t RpcState::rpcRec(
-        const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
-        const char* what, iovec* iovs, int niovs,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+status_t RpcState::rpcRec(const sp<RpcSession::RpcConnection>& connection,
+                          const sp<RpcSession>& session, const char* what, iovec* iovs, int niovs,
+                          std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     if (status_t status =
                 connection->rpcTransport->interruptableReadFully(session->mShutdownTrigger.get(),
                                                                  iovs, niovs, std::nullopt,
@@ -649,7 +649,7 @@
 
 status_t RpcState::waitForReply(const sp<RpcSession::RpcConnection>& connection,
                                 const sp<RpcSession>& session, Parcel* reply) {
-    std::vector<std::variant<base::unique_fd, base::borrowed_fd>> ancillaryFds;
+    std::vector<std::variant<unique_fd, borrowed_fd>> ancillaryFds;
     RpcWireHeader command;
     while (true) {
         iovec iov{&command, sizeof(command)};
@@ -767,7 +767,7 @@
                                         const sp<RpcSession>& session, CommandType type) {
     LOG_RPC_DETAIL("getAndExecuteCommand on RpcTransport %p", connection->rpcTransport.get());
 
-    std::vector<std::variant<base::unique_fd, base::borrowed_fd>> ancillaryFds;
+    std::vector<std::variant<unique_fd, borrowed_fd>> ancillaryFds;
     RpcWireHeader command;
     iovec iov{&command, sizeof(command)};
     if (status_t status =
@@ -796,7 +796,7 @@
 status_t RpcState::processCommand(
         const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
         const RpcWireHeader& command, CommandType type,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds) {
+        std::vector<std::variant<unique_fd, borrowed_fd>>&& ancillaryFds) {
 #ifdef BINDER_WITH_KERNEL_IPC
     IPCThreadState* kernelBinderState = IPCThreadState::selfOrNull();
     IPCThreadState::SpGuard spGuard{
@@ -836,7 +836,7 @@
 status_t RpcState::processTransact(
         const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
         const RpcWireHeader& command,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds) {
+        std::vector<std::variant<unique_fd, borrowed_fd>>&& ancillaryFds) {
     LOG_ALWAYS_FATAL_IF(command.command != RPC_COMMAND_TRANSACT, "command: %d", command.command);
 
     CommandData transactionData(command.bodySize);
@@ -863,7 +863,7 @@
 status_t RpcState::processTransactInternal(
         const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
         CommandData transactionData,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds) {
+        std::vector<std::variant<unique_fd, borrowed_fd>>&& ancillaryFds) {
     // for 'recursive' calls to this, we have already read and processed the
     // binder from the transaction data and taken reference counts into account,
     // so it is cached here.
diff --git a/libs/binder/RpcState.h b/libs/binder/RpcState.h
index 2a954e6..8b84602 100644
--- a/libs/binder/RpcState.h
+++ b/libs/binder/RpcState.h
@@ -15,12 +15,12 @@
  */
 #pragma once
 
-#include <android-base/unique_fd.h>
 #include <binder/Functional.h>
 #include <binder/IBinder.h>
 #include <binder/Parcel.h>
 #include <binder/RpcSession.h>
 #include <binder/RpcThreads.h>
+#include <binder/unique_fd.h>
 
 #include <map>
 #include <optional>
@@ -192,27 +192,28 @@
             const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
             const char* what, iovec* iovs, int niovs,
             const std::optional<binder::impl::SmallFunction<status_t()>>& altPoll,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds =
+            const std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>* ancillaryFds =
                     nullptr);
-    [[nodiscard]] status_t rpcRec(
-            const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
-            const char* what, iovec* iovs, int niovs,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds = nullptr);
+    [[nodiscard]] status_t rpcRec(const sp<RpcSession::RpcConnection>& connection,
+                                  const sp<RpcSession>& session, const char* what, iovec* iovs,
+                                  int niovs,
+                                  std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>*
+                                          ancillaryFds = nullptr);
 
     [[nodiscard]] status_t waitForReply(const sp<RpcSession::RpcConnection>& connection,
                                         const sp<RpcSession>& session, Parcel* reply);
     [[nodiscard]] status_t processCommand(
             const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
             const RpcWireHeader& command, CommandType type,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds);
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>&& ancillaryFds);
     [[nodiscard]] status_t processTransact(
             const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
             const RpcWireHeader& command,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds);
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>&& ancillaryFds);
     [[nodiscard]] status_t processTransactInternal(
             const sp<RpcSession::RpcConnection>& connection, const sp<RpcSession>& session,
             CommandData transactionData,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds);
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>&& ancillaryFds);
     [[nodiscard]] status_t processDecStrong(const sp<RpcSession::RpcConnection>& connection,
                                             const sp<RpcSession>& session,
                                             const RpcWireHeader& command);
@@ -254,7 +255,7 @@
         struct AsyncTodo {
             sp<IBinder> ref;
             CommandData data;
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>> ancillaryFds;
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>> ancillaryFds;
             uint64_t asyncNumber = 0;
 
             bool operator<(const AsyncTodo& o) const {
diff --git a/libs/binder/RpcTransportRaw.cpp b/libs/binder/RpcTransportRaw.cpp
index ffa3151..aa3a6e5 100644
--- a/libs/binder/RpcTransportRaw.cpp
+++ b/libs/binder/RpcTransportRaw.cpp
@@ -19,6 +19,7 @@
 
 #include <poll.h>
 #include <stddef.h>
+#include <sys/socket.h>
 
 #include <binder/RpcTransportRaw.h>
 
@@ -30,6 +31,8 @@
 namespace android {
 
 using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
 // RpcTransport with TLS disabled.
 class RpcTransportRaw : public RpcTransport {
@@ -57,8 +60,7 @@
     status_t interruptableWriteFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
             const std::optional<SmallFunction<status_t()>>& altPoll,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds)
-            override {
+            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override {
         bool sentFds = false;
         auto send = [&](iovec* iovs, int niovs) -> ssize_t {
             ssize_t ret = binder::os::sendMessageOnSocket(mSocket, iovs, niovs,
@@ -73,7 +75,7 @@
     status_t interruptableReadFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
             const std::optional<SmallFunction<status_t()>>& altPoll,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) override {
+            std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override {
         auto recv = [&](iovec* iovs, int niovs) -> ssize_t {
             return binder::os::receiveMessageFromSocket(mSocket, iovs, niovs, ancillaryFds);
         };
diff --git a/libs/binder/RpcTransportTipcAndroid.cpp b/libs/binder/RpcTransportTipcAndroid.cpp
index 188ba3b..3819fb6 100644
--- a/libs/binder/RpcTransportTipcAndroid.cpp
+++ b/libs/binder/RpcTransportTipcAndroid.cpp
@@ -27,6 +27,8 @@
 #include "RpcTransportUtils.h"
 
 using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
 namespace android {
 
@@ -75,8 +77,7 @@
     status_t interruptableWriteFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
             const std::optional<SmallFunction<status_t()>>& altPoll,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds)
-            override {
+            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override {
         auto writeFn = [&](iovec* iovs, size_t niovs) -> ssize_t {
             // TODO: send ancillaryFds. For now, we just abort if anyone tries
             // to send any.
@@ -93,8 +94,7 @@
     status_t interruptableReadFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
             const std::optional<SmallFunction<status_t()>>& altPoll,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /*ancillaryFds*/)
-            override {
+            std::vector<std::variant<unique_fd, borrowed_fd>>* /*ancillaryFds*/) override {
         auto readFn = [&](iovec* iovs, size_t niovs) -> ssize_t {
             // Fill the read buffer at most once per readFn call, then try to
             // return as much of it as possible. If the input iovecs are spread
diff --git a/libs/binder/RpcTransportTls.cpp b/libs/binder/RpcTransportTls.cpp
index fef4be4..579694c 100644
--- a/libs/binder/RpcTransportTls.cpp
+++ b/libs/binder/RpcTransportTls.cpp
@@ -18,6 +18,7 @@
 #include <log/log.h>
 
 #include <poll.h>
+#include <sys/socket.h>
 
 #include <openssl/bn.h>
 #include <openssl/ssl.h>
@@ -42,6 +43,8 @@
 namespace android {
 
 using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
 namespace {
 
@@ -56,7 +59,7 @@
     return 1;
 }
 int socketRead(BIO* bio, char* buf, int size) {
-    android::base::borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
+    borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
     int ret = TEMP_FAILURE_RETRY(::recv(fd.get(), buf, size, MSG_NOSIGNAL));
     BIO_clear_retry_flags(bio);
     if (errno == EAGAIN || errno == EWOULDBLOCK) {
@@ -66,7 +69,7 @@
 }
 
 int socketWrite(BIO* bio, const char* buf, int size) {
-    android::base::borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
+    borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
     int ret = TEMP_FAILURE_RETRY(::send(fd.get(), buf, size, MSG_NOSIGNAL));
     BIO_clear_retry_flags(bio);
     if (errno == EAGAIN || errno == EWOULDBLOCK) {
@@ -76,13 +79,13 @@
 }
 
 long socketCtrl(BIO* bio, int cmd, long num, void*) { // NOLINT
-    android::base::borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
+    borrowed_fd fd(static_cast<int>(reinterpret_cast<intptr_t>(BIO_get_data(bio))));
     if (cmd == BIO_CTRL_FLUSH) return 1;
     LOG_ALWAYS_FATAL("sockCtrl(fd=%d, %d, %ld)", fd.get(), cmd, num);
     return 0;
 }
 
-bssl::UniquePtr<BIO> newSocketBio(android::base::borrowed_fd fd) {
+bssl::UniquePtr<BIO> newSocketBio(borrowed_fd fd) {
     static const BIO_METHOD* gMethods = ([] {
         auto methods = BIO_meth_new(BIO_get_new_index(), "socket_no_signal");
         LOG_ALWAYS_FATAL_IF(0 == BIO_meth_set_write(methods, socketWrite), "BIO_meth_set_write");
@@ -289,12 +292,11 @@
     status_t interruptableWriteFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
             const std::optional<SmallFunction<status_t()>>& altPoll,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds)
-            override;
+            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override;
     status_t interruptableReadFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
             const std::optional<SmallFunction<status_t()>>& altPoll,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) override;
+            std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override;
 
     bool isWaiting() override { return mSocket.isInPollingState(); };
 
@@ -325,7 +327,7 @@
 status_t RpcTransportTls::interruptableWriteFully(
         FdTrigger* fdTrigger, iovec* iovs, int niovs,
         const std::optional<SmallFunction<status_t()>>& altPoll,
-        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+        const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     (void)ancillaryFds;
 
     MAYBE_WAIT_IN_FLAKE_MODE;
@@ -371,7 +373,7 @@
 status_t RpcTransportTls::interruptableReadFully(
         FdTrigger* fdTrigger, iovec* iovs, int niovs,
         const std::optional<SmallFunction<status_t()>>& altPoll,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) {
+        std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) {
     (void)ancillaryFds;
 
     MAYBE_WAIT_IN_FLAKE_MODE;
diff --git a/libs/binder/RpcTransportUtils.h b/libs/binder/RpcTransportUtils.h
index a0e502e..fcf6675 100644
--- a/libs/binder/RpcTransportUtils.h
+++ b/libs/binder/RpcTransportUtils.h
@@ -15,7 +15,7 @@
  */
 #pragma once
 
-#include <android-base/unique_fd.h>
+#include <binder/unique_fd.h>
 #include <poll.h>
 
 #include "FdTrigger.h"
diff --git a/libs/binder/RpcTrusty.cpp b/libs/binder/RpcTrusty.cpp
index 2f2fe7d..a445196 100644
--- a/libs/binder/RpcTrusty.cpp
+++ b/libs/binder/RpcTrusty.cpp
@@ -16,14 +16,14 @@
 
 #define LOG_TAG "RpcTrusty"
 
-#include <android-base/unique_fd.h>
 #include <binder/RpcSession.h>
 #include <binder/RpcTransportTipcAndroid.h>
+#include <binder/unique_fd.h>
 #include <trusty/tipc.h>
 
 namespace android {
 
-using android::base::unique_fd;
+using android::binder::unique_fd;
 
 sp<RpcSession> RpcTrustyConnectWithSessionInitializer(
         const char* device, const char* port,
diff --git a/libs/binder/UtilsHost.cpp b/libs/binder/UtilsHost.cpp
index 3db038f..ae1a6c4 100644
--- a/libs/binder/UtilsHost.cpp
+++ b/libs/binder/UtilsHost.cpp
@@ -25,10 +25,13 @@
 
 #include <log/log.h>
 
+#include "FdUtils.h"
 #include "Utils.h"
 
 namespace android {
 
+using android::binder::unique_fd;
+
 CommandResult::~CommandResult() {
     if (!pid.has_value()) return;
     if (*pid == 0) {
@@ -83,13 +86,13 @@
     argv.push_back(nullptr);
 
     CommandResult ret;
-    android::base::unique_fd outWrite;
-    if (!android::base::Pipe(&ret.outPipe, &outWrite)) {
+    unique_fd outWrite;
+    if (!binder::Pipe(&ret.outPipe, &outWrite)) {
         PLOGE("pipe() for outPipe");
         return {};
     }
-    android::base::unique_fd errWrite;
-    if (!android::base::Pipe(&ret.errPipe, &errWrite)) {
+    unique_fd errWrite;
+    if (!binder::Pipe(&ret.errPipe, &errWrite)) {
         PLOGE("pipe() for errPipe");
         return {};
     }
@@ -120,7 +123,7 @@
     errWrite.reset();
     ret.pid = pid;
 
-    auto handlePoll = [](android::base::unique_fd* fd, const pollfd* pfd, std::string* s) {
+    auto handlePoll = [](unique_fd* fd, const pollfd* pfd, std::string* s) {
         if (!fd->ok()) return true;
         if (pfd->revents & POLLIN) {
             char buf[1024];
diff --git a/libs/binder/UtilsHost.h b/libs/binder/UtilsHost.h
index 5de0980..b582f17 100644
--- a/libs/binder/UtilsHost.h
+++ b/libs/binder/UtilsHost.h
@@ -23,7 +23,7 @@
 #include <vector>
 
 #include <android-base/macros.h>
-#include <android-base/unique_fd.h>
+#include <binder/unique_fd.h>
 #include <utils/Errors.h>
 
 /**
@@ -46,8 +46,8 @@
     std::string stdoutStr;
     std::string stderrStr;
 
-    android::base::unique_fd outPipe;
-    android::base::unique_fd errPipe;
+    binder::unique_fd outPipe;
+    binder::unique_fd errPipe;
 
     CommandResult() = default;
     CommandResult(CommandResult&& other) noexcept { (*this) = std::move(other); }
diff --git a/libs/binder/file.cpp b/libs/binder/file.cpp
new file mode 100644
index 0000000..bac667e
--- /dev/null
+++ b/libs/binder/file.cpp
@@ -0,0 +1,57 @@
+/*
+ * 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 "file.h"
+
+#ifdef BINDER_NO_LIBBASE
+
+#include <stdint.h>
+
+// clang-format off
+
+namespace android::binder {
+
+bool ReadFully(borrowed_fd fd, void* data, size_t byte_count) {
+  uint8_t* p = reinterpret_cast<uint8_t*>(data);
+  size_t remaining = byte_count;
+  while (remaining > 0) {
+    ssize_t n = TEMP_FAILURE_RETRY(read(fd.get(), p, remaining));
+    if (n == 0) {  // EOF
+      errno = ENODATA;
+      return false;
+    }
+    if (n == -1) return false;
+    p += n;
+    remaining -= n;
+  }
+  return true;
+}
+
+bool WriteFully(borrowed_fd fd, const void* data, size_t byte_count) {
+  const uint8_t* p = reinterpret_cast<const uint8_t*>(data);
+  size_t remaining = byte_count;
+  while (remaining > 0) {
+    ssize_t n = TEMP_FAILURE_RETRY(write(fd.get(), p, remaining));
+    if (n == -1) return false;
+    p += n;
+    remaining -= n;
+  }
+  return true;
+}
+
+}  // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/file.h b/libs/binder/file.h
new file mode 100644
index 0000000..bcbfa31
--- /dev/null
+++ b/libs/binder/file.h
@@ -0,0 +1,41 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#ifndef BINDER_NO_LIBBASE
+
+#include <android-base/file.h>
+
+namespace android::binder {
+using android::base::ReadFully;
+using android::base::WriteFully;
+} // namespace android::binder
+
+#else // BINDER_NO_LIBBASE
+
+#include <binder/unique_fd.h>
+
+#include <string_view>
+
+namespace android::binder {
+
+bool ReadFully(borrowed_fd fd, void* data, size_t byte_count);
+bool WriteFully(borrowed_fd fd, const void* data, size_t byte_count);
+
+} // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/include/binder/Binder.h b/libs/binder/include/binder/Binder.h
index 744da0f..7a65ff4 100644
--- a/libs/binder/include/binder/Binder.h
+++ b/libs/binder/include/binder/Binder.h
@@ -102,7 +102,7 @@
     // to another process.
     void setParceled();
 
-    [[nodiscard]] status_t setRpcClientDebug(android::base::unique_fd clientFd,
+    [[nodiscard]] status_t setRpcClientDebug(binder::unique_fd clientFd,
                                              const sp<IBinder>& keepAliveBinder);
 
 protected:
diff --git a/libs/binder/include/binder/BpBinder.h b/libs/binder/include/binder/BpBinder.h
index d78ea0d..89a4d27 100644
--- a/libs/binder/include/binder/BpBinder.h
+++ b/libs/binder/include/binder/BpBinder.h
@@ -16,9 +16,9 @@
 
 #pragma once
 
-#include <android-base/unique_fd.h>
 #include <binder/IBinder.h>
 #include <binder/RpcThreads.h>
+#include <binder/unique_fd.h>
 
 #include <map>
 #include <optional>
@@ -94,7 +94,7 @@
 
     // Start recording transactions to the unique_fd.
     // See RecordedTransaction.h for more details.
-    status_t startRecordingBinder(const android::base::unique_fd& fd);
+    status_t startRecordingBinder(const binder::unique_fd& fd);
     // Stop the current recording.
     status_t stopRecordingBinder();
 
diff --git a/libs/binder/include/binder/IBinder.h b/libs/binder/include/binder/IBinder.h
index e75d548..dad9a17 100644
--- a/libs/binder/include/binder/IBinder.h
+++ b/libs/binder/include/binder/IBinder.h
@@ -16,7 +16,7 @@
 
 #pragma once
 
-#include <android-base/unique_fd.h>
+#include <binder/unique_fd.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 #include <utils/String16.h>
@@ -175,7 +175,7 @@
      *
      * On death of @a keepAliveBinder, the RpcServer shuts down.
      */
-    [[nodiscard]] status_t setRpcClientDebug(android::base::unique_fd socketFd,
+    [[nodiscard]] status_t setRpcClientDebug(binder::unique_fd socketFd,
                                              const sp<IBinder>& keepAliveBinder);
 
     // NOLINTNEXTLINE(google-default-arguments)
diff --git a/libs/binder/include/binder/Parcel.h b/libs/binder/include/binder/Parcel.h
index 6961abc..09da6e3 100644
--- a/libs/binder/include/binder/Parcel.h
+++ b/libs/binder/include/binder/Parcel.h
@@ -25,7 +25,7 @@
 #include <variant>
 #include <vector>
 
-#include <android-base/unique_fd.h>
+#include <binder/unique_fd.h>
 #ifndef BINDER_DISABLE_NATIVE_HANDLE
 #include <cutils/native_handle.h>
 #endif
@@ -354,17 +354,16 @@
     // Place a file descriptor into the parcel.  This will not affect the
     // semantics of the smart file descriptor. A new descriptor will be
     // created, and will be closed when the parcel is destroyed.
-    status_t            writeUniqueFileDescriptor(
-                            const base::unique_fd& fd);
+    status_t writeUniqueFileDescriptor(const binder::unique_fd& fd);
 
     // Place a vector of file desciptors into the parcel. Each descriptor is
     // dup'd as in writeDupFileDescriptor
-    status_t            writeUniqueFileDescriptorVector(
-                            const std::optional<std::vector<base::unique_fd>>& val);
-    status_t            writeUniqueFileDescriptorVector(
-                            const std::unique_ptr<std::vector<base::unique_fd>>& val) __attribute__((deprecated("use std::optional version instead")));
-    status_t            writeUniqueFileDescriptorVector(
-                            const std::vector<base::unique_fd>& val);
+    status_t writeUniqueFileDescriptorVector(
+            const std::optional<std::vector<binder::unique_fd>>& val);
+    status_t writeUniqueFileDescriptorVector(
+            const std::unique_ptr<std::vector<binder::unique_fd>>& val)
+            __attribute__((deprecated("use std::optional version instead")));
+    status_t writeUniqueFileDescriptorVector(const std::vector<binder::unique_fd>& val);
 
     // Writes a blob to the parcel.
     // If the blob is small, then it is stored in-place, otherwise it is
@@ -579,20 +578,17 @@
     int                 readParcelFileDescriptor() const;
 
     // Retrieve a smart file descriptor from the parcel.
-    status_t            readUniqueFileDescriptor(
-                            base::unique_fd* val) const;
+    status_t readUniqueFileDescriptor(binder::unique_fd* val) const;
 
     // Retrieve a Java "parcel file descriptor" from the parcel.
-    status_t            readUniqueParcelFileDescriptor(base::unique_fd* val) const;
-
+    status_t readUniqueParcelFileDescriptor(binder::unique_fd* val) const;
 
     // Retrieve a vector of smart file descriptors from the parcel.
-    status_t            readUniqueFileDescriptorVector(
-                            std::optional<std::vector<base::unique_fd>>* val) const;
-    status_t            readUniqueFileDescriptorVector(
-                            std::unique_ptr<std::vector<base::unique_fd>>* val) const __attribute__((deprecated("use std::optional version instead")));
-    status_t            readUniqueFileDescriptorVector(
-                            std::vector<base::unique_fd>* val) const;
+    status_t readUniqueFileDescriptorVector(
+            std::optional<std::vector<binder::unique_fd>>* val) const;
+    status_t readUniqueFileDescriptorVector(std::unique_ptr<std::vector<binder::unique_fd>>* val)
+            const __attribute__((deprecated("use std::optional version instead")));
+    status_t readUniqueFileDescriptorVector(std::vector<binder::unique_fd>* val) const;
 
     // Reads a blob from the parcel.
     // The caller should call release() on the blob after reading its contents.
@@ -629,7 +625,7 @@
     status_t rpcSetDataReference(
             const sp<RpcSession>& session, const uint8_t* data, size_t dataSize,
             const uint32_t* objectTable, size_t objectTableSize,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>&& ancillaryFds,
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>&& ancillaryFds,
             release_func relFunc);
 
     status_t            finishWrite(size_t len);
@@ -706,7 +702,7 @@
     // 5) Nullable objects contained in std::optional, std::unique_ptr, or std::shared_ptr.
     //
     // And active objects from the Android ecosystem such as:
-    // 6) File descriptors, base::unique_fd (kernel object handles)
+    // 6) File descriptors, unique_fd (kernel object handles)
     // 7) Binder objects, sp<IBinder> (active Android RPC handles)
     //
     // Objects from (1) through (5) serialize into the mData buffer.
@@ -957,9 +953,7 @@
         return writeUtf8AsUtf16(t);
     }
 
-    status_t writeData(const base::unique_fd& t) {
-        return writeUniqueFileDescriptor(t);
-    }
+    status_t writeData(const binder::unique_fd& t) { return writeUniqueFileDescriptor(t); }
 
     status_t writeData(const Parcelable& t) {  // std::is_base_of_v<Parcelable, T>
         // implemented here. writeParcelable() calls this.
@@ -1106,9 +1100,7 @@
         return readUtf8FromUtf16(t);
     }
 
-    status_t readData(base::unique_fd* t) const {
-        return readUniqueFileDescriptor(t);
-    }
+    status_t readData(binder::unique_fd* t) const { return readUniqueFileDescriptor(t); }
 
     status_t readData(Parcelable* t) const { // std::is_base_of_v<Parcelable, T>
         // implemented here. readParcelable() calls this.
@@ -1328,7 +1320,7 @@
         // same order as `mObjectPositions`.
         //
         // Boxed to save space. Lazy allocated.
-        std::unique_ptr<std::vector<std::variant<base::unique_fd, base::borrowed_fd>>> mFds;
+        std::unique_ptr<std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>> mFds;
     };
     std::variant<KernelFields, RpcFields> mVariantFields;
 
diff --git a/libs/binder/include/binder/ParcelFileDescriptor.h b/libs/binder/include/binder/ParcelFileDescriptor.h
index 08d8e43..c4ef354 100644
--- a/libs/binder/include/binder/ParcelFileDescriptor.h
+++ b/libs/binder/include/binder/ParcelFileDescriptor.h
@@ -16,9 +16,9 @@
 
 #pragma once
 
-#include <android-base/unique_fd.h>
 #include <binder/Parcel.h>
 #include <binder/Parcelable.h>
+#include <binder/unique_fd.h>
 
 namespace android {
 namespace os {
@@ -29,14 +29,14 @@
 class ParcelFileDescriptor : public android::Parcelable {
 public:
     ParcelFileDescriptor();
-    explicit ParcelFileDescriptor(android::base::unique_fd fd);
+    explicit ParcelFileDescriptor(binder::unique_fd fd);
     ParcelFileDescriptor(ParcelFileDescriptor&& other) noexcept : mFd(std::move(other.mFd)) { }
     ParcelFileDescriptor& operator=(ParcelFileDescriptor&& other) noexcept = default;
     ~ParcelFileDescriptor() override;
 
     int get() const { return mFd.get(); }
-    android::base::unique_fd release() { return std::move(mFd); }
-    void reset(android::base::unique_fd fd = android::base::unique_fd()) { mFd = std::move(fd); }
+    binder::unique_fd release() { return std::move(mFd); }
+    void reset(binder::unique_fd fd = binder::unique_fd()) { mFd = std::move(fd); }
 
     // android::Parcelable override:
     android::status_t writeToParcel(android::Parcel* parcel) const override;
@@ -62,7 +62,7 @@
         return mFd.get() >= rhs.mFd.get();
     }
 private:
-    android::base::unique_fd mFd;
+    binder::unique_fd mFd;
 };
 
 } // namespace os
diff --git a/libs/binder/include/binder/RecordedTransaction.h b/libs/binder/include/binder/RecordedTransaction.h
index eb765fe..505c199 100644
--- a/libs/binder/include/binder/RecordedTransaction.h
+++ b/libs/binder/include/binder/RecordedTransaction.h
@@ -16,8 +16,8 @@
 
 #pragma once
 
-#include <android-base/unique_fd.h>
 #include <binder/Parcel.h>
+#include <binder/unique_fd.h>
 #include <mutex>
 
 namespace android {
@@ -31,7 +31,8 @@
 class RecordedTransaction {
 public:
     // Filled with the first transaction from fd.
-    static std::optional<RecordedTransaction> fromFile(const android::base::unique_fd& fd);
+
+    static std::optional<RecordedTransaction> fromFile(const binder::unique_fd& fd);
     // Filled with the arguments.
     static std::optional<RecordedTransaction> fromDetails(const String16& interfaceName,
                                                           uint32_t code, uint32_t flags,
@@ -39,7 +40,7 @@
                                                           const Parcel& reply, status_t err);
     RecordedTransaction(RecordedTransaction&& t) noexcept;
 
-    [[nodiscard]] status_t dumpToFile(const android::base::unique_fd& fd) const;
+    [[nodiscard]] status_t dumpToFile(const binder::unique_fd& fd) const;
 
     const std::string& getInterfaceName() const;
     uint32_t getCode() const;
@@ -53,8 +54,8 @@
 private:
     RecordedTransaction() = default;
 
-    android::status_t writeChunk(const android::base::borrowed_fd, uint32_t chunkType,
-                                 size_t byteCount, const uint8_t* data) const;
+    android::status_t writeChunk(const binder::borrowed_fd, uint32_t chunkType, size_t byteCount,
+                                 const uint8_t* data) const;
 
 #pragma clang diagnostic push
 #pragma clang diagnostic error "-Wpadded"
diff --git a/libs/binder/include/binder/RpcServer.h b/libs/binder/include/binder/RpcServer.h
index 2153f16..a07880d 100644
--- a/libs/binder/include/binder/RpcServer.h
+++ b/libs/binder/include/binder/RpcServer.h
@@ -15,11 +15,11 @@
  */
 #pragma once
 
-#include <android-base/unique_fd.h>
 #include <binder/IBinder.h>
 #include <binder/RpcSession.h>
 #include <binder/RpcThreads.h>
 #include <binder/RpcTransport.h>
+#include <binder/unique_fd.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 
@@ -59,7 +59,7 @@
      * to RpcSession::setupUnixDomainSocketBootstrapClient. Multiple client
      * session can be created from the client end of the pair.
      */
-    [[nodiscard]] status_t setupUnixDomainSocketBootstrapServer(base::unique_fd serverFd);
+    [[nodiscard]] status_t setupUnixDomainSocketBootstrapServer(binder::unique_fd serverFd);
 
     /**
      * This represents a session for responses, e.g.:
@@ -79,7 +79,7 @@
      * This method is used in the libbinder_rpc_unstable API
      * RunInitUnixDomainRpcServer().
      */
-    [[nodiscard]] status_t setupRawSocketServer(base::unique_fd socket_fd);
+    [[nodiscard]] status_t setupRawSocketServer(binder::unique_fd socket_fd);
 
     /**
      * Creates an RPC server binding to the given CID at the given port.
@@ -111,13 +111,13 @@
     /**
      * If hasServer(), return the server FD. Otherwise return invalid FD.
      */
-    [[nodiscard]] base::unique_fd releaseServer();
+    [[nodiscard]] binder::unique_fd releaseServer();
 
     /**
      * Set up server using an external FD previously set up by releaseServer().
      * Return false if there's already a server.
      */
-    [[nodiscard]] status_t setupExternalServer(base::unique_fd serverFd);
+    [[nodiscard]] status_t setupExternalServer(binder::unique_fd serverFd);
 
     /**
      * This must be called before adding a client session. This corresponds
@@ -193,7 +193,7 @@
      *
      * The only argument is a successfully created file descriptor, not bound to an address yet.
      */
-    void setServerSocketModifier(std::function<void(base::borrowed_fd)>&& modifier);
+    void setServerSocketModifier(std::function<void(binder::borrowed_fd)>&& modifier);
 
     /**
      * See RpcTransportCtx::getCertificate
@@ -249,7 +249,7 @@
     void onSessionIncomingThreadEnded() override;
 
     status_t setupExternalServer(
-            base::unique_fd serverFd,
+            binder::unique_fd serverFd,
             std::function<status_t(const RpcServer&, RpcTransportFd*)>&& acceptFn);
 
     static constexpr size_t kRpcAddressSize = 128;
@@ -279,7 +279,7 @@
     wp<IBinder> mRootObjectWeak;
     std::function<sp<IBinder>(wp<RpcSession>, const void*, size_t)> mRootObjectFactory;
     std::function<bool(const void*, size_t)> mConnectionFilter;
-    std::function<void(base::borrowed_fd)> mServerSocketModifier;
+    std::function<void(binder::borrowed_fd)> mServerSocketModifier;
     std::map<std::vector<uint8_t>, sp<RpcSession>> mSessions;
     std::unique_ptr<FdTrigger> mShutdownTrigger;
     RpcConditionVariable mShutdownCv;
diff --git a/libs/binder/include/binder/RpcSession.h b/libs/binder/include/binder/RpcSession.h
index e3805ac..11fbde9 100644
--- a/libs/binder/include/binder/RpcSession.h
+++ b/libs/binder/include/binder/RpcSession.h
@@ -15,10 +15,10 @@
  */
 #pragma once
 
-#include <android-base/unique_fd.h>
 #include <binder/IBinder.h>
 #include <binder/RpcThreads.h>
 #include <binder/RpcTransport.h>
+#include <binder/unique_fd.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 
@@ -123,7 +123,7 @@
     /**
      * Connects to an RPC server over a nameless Unix domain socket pair.
      */
-    [[nodiscard]] status_t setupUnixDomainSocketBootstrapClient(base::unique_fd bootstrap);
+    [[nodiscard]] status_t setupUnixDomainSocketBootstrapClient(binder::unique_fd bootstrap);
 
     /**
      * Connects to an RPC server at the CVD & port.
@@ -145,8 +145,8 @@
      *
      * For future compatibility, 'request' should not reference any stack data.
      */
-    [[nodiscard]] status_t setupPreconnectedClient(base::unique_fd fd,
-                                                   std::function<base::unique_fd()>&& request);
+    [[nodiscard]] status_t setupPreconnectedClient(binder::unique_fd fd,
+                                                   std::function<binder::unique_fd()>&& request);
 
     /**
      * For debugging!
diff --git a/libs/binder/include/binder/RpcTransport.h b/libs/binder/include/binder/RpcTransport.h
index 115a173..a50cdc1 100644
--- a/libs/binder/include/binder/RpcTransport.h
+++ b/libs/binder/include/binder/RpcTransport.h
@@ -25,12 +25,12 @@
 #include <variant>
 #include <vector>
 
-#include <android-base/unique_fd.h>
 #include <utils/Errors.h>
 
 #include <binder/Functional.h>
 #include <binder/RpcCertificateFormat.h>
 #include <binder/RpcThreads.h>
+#include <binder/unique_fd.h>
 
 #include <sys/uio.h>
 
@@ -87,11 +87,12 @@
     [[nodiscard]] virtual status_t interruptableWriteFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
             const std::optional<binder::impl::SmallFunction<status_t()>>& altPoll,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) = 0;
+            const std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>*
+                    ancillaryFds) = 0;
     [[nodiscard]] virtual status_t interruptableReadFully(
             FdTrigger* fdTrigger, iovec* iovs, int niovs,
             const std::optional<binder::impl::SmallFunction<status_t()>>& altPoll,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) = 0;
+            std::vector<std::variant<binder::unique_fd, binder::borrowed_fd>>* ancillaryFds) = 0;
 
     /**
      *  Check whether any threads are blocked while polling the transport
@@ -177,10 +178,10 @@
     void setPollingState(bool state) const { isPolling = state; }
 
 public:
-    base::unique_fd fd;
+    binder::unique_fd fd;
 
     RpcTransportFd() = default;
-    explicit RpcTransportFd(base::unique_fd &&descriptor)
+    explicit RpcTransportFd(binder::unique_fd&& descriptor)
           : isPolling(false), fd(std::move(descriptor)) {}
 
     RpcTransportFd(RpcTransportFd &&transportFd) noexcept
@@ -192,7 +193,7 @@
         return *this;
     }
 
-    RpcTransportFd &operator=(base::unique_fd &&descriptor) noexcept {
+    RpcTransportFd& operator=(binder::unique_fd&& descriptor) noexcept {
         fd = std::move(descriptor);
         isPolling = false;
         return *this;
diff --git a/libs/binder/include/binder/unique_fd.h b/libs/binder/include/binder/unique_fd.h
new file mode 100644
index 0000000..439b8a2
--- /dev/null
+++ b/libs/binder/include/binder/unique_fd.h
@@ -0,0 +1,114 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#ifndef BINDER_NO_LIBBASE
+
+#include <android-base/unique_fd.h>
+
+namespace android::binder {
+using android::base::borrowed_fd;
+using android::base::unique_fd;
+} // namespace android::binder
+
+#else // BINDER_NO_LIBBASE
+
+#include <errno.h>
+#include <fcntl.h> // not needed for unique_fd, but a lot of users depend on open(3)
+#include <unistd.h>
+
+namespace android::binder {
+
+// Container for a file descriptor that automatically closes the descriptor as
+// it goes out of scope.
+//
+//      unique_fd ufd(open("/some/path", "r"));
+//      if (!ufd.ok()) return error;
+//
+//      // Do something useful with ufd.get(), possibly including early 'return'.
+//
+//      return 0; // Descriptor is closed for you.
+//
+class unique_fd final {
+public:
+    unique_fd() {}
+
+    explicit unique_fd(int fd) { reset(fd); }
+    ~unique_fd() { reset(); }
+
+    unique_fd(const unique_fd&) = delete;
+    void operator=(const unique_fd&) = delete;
+    unique_fd(unique_fd&& other) noexcept { reset(other.release()); }
+    unique_fd& operator=(unique_fd&& s) noexcept {
+        int fd = s.fd_;
+        s.fd_ = -1;
+        reset(fd);
+        return *this;
+    }
+
+    [[clang::reinitializes]] void reset(int new_value = -1) {
+        int previous_errno = errno;
+
+        if (fd_ != -1) {
+            ::close(fd_);
+        }
+
+        fd_ = new_value;
+        errno = previous_errno;
+    }
+
+    int get() const { return fd_; }
+
+    bool ok() const { return get() >= 0; }
+
+    [[nodiscard]] int release() {
+        int ret = fd_;
+        fd_ = -1;
+        return ret;
+    }
+
+private:
+    int fd_ = -1;
+};
+
+// A wrapper type that can be implicitly constructed from either int or
+// unique_fd. This supports cases where you don't actually own the file
+// descriptor, and can't take ownership, but are temporarily acting as if
+// you're the owner.
+//
+// One example would be a function that needs to also allow
+// STDERR_FILENO, not just a newly-opened fd. Another example would be JNI code
+// that's using a file descriptor that's actually owned by a
+// ParcelFileDescriptor or whatever on the Java side, but where the JNI code
+// would like to enforce this weaker sense of "temporary ownership".
+//
+// If you think of unique_fd as being like std::string in that represents
+// ownership, borrowed_fd is like std::string_view (and int is like const
+// char*).
+struct borrowed_fd {
+    /* implicit */ borrowed_fd(int fd) : fd_(fd) {}                      // NOLINT
+    /* implicit */ borrowed_fd(const unique_fd& ufd) : fd_(ufd.get()) {} // NOLINT
+
+    int get() const { return fd_; }
+
+private:
+    int fd_ = -1;
+};
+
+} // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/libbinder_rpc_unstable.cpp b/libs/binder/libbinder_rpc_unstable.cpp
index 118409e..ddd82e8 100644
--- a/libs/binder/libbinder_rpc_unstable.cpp
+++ b/libs/binder/libbinder_rpc_unstable.cpp
@@ -16,10 +16,10 @@
 
 #include <binder_rpc_unstable.hpp>
 
-#include <android-base/unique_fd.h>
 #include <android/binder_libbinder.h>
 #include <binder/RpcServer.h>
 #include <binder/RpcSession.h>
+#include <binder/unique_fd.h>
 #include <cutils/sockets.h>
 #include <linux/vm_sockets.h>
 
@@ -29,7 +29,7 @@
 using android::sp;
 using android::status_t;
 using android::statusToString;
-using android::base::unique_fd;
+using android::binder::unique_fd;
 
 // Opaque handle for RpcServer.
 struct ARpcServer {};
diff --git a/libs/binder/ndk/parcel.cpp b/libs/binder/ndk/parcel.cpp
index c15bcf9..88ce5f4 100644
--- a/libs/binder/ndk/parcel.cpp
+++ b/libs/binder/ndk/parcel.cpp
@@ -14,11 +14,11 @@
  * limitations under the License.
  */
 
-#include <android-base/unique_fd.h>
 #include <android/binder_parcel.h>
 #include <android/binder_parcel_platform.h>
 #include <binder/Parcel.h>
 #include <binder/ParcelFileDescriptor.h>
+#include <binder/unique_fd.h>
 #include <inttypes.h>
 #include <utils/Unicode.h>
 
@@ -32,7 +32,7 @@
 using ::android::Parcel;
 using ::android::sp;
 using ::android::status_t;
-using ::android::base::unique_fd;
+using ::android::binder::unique_fd;
 using ::android::os::ParcelFileDescriptor;
 
 template <typename T>
diff --git a/libs/binder/rust/tests/serialization.cpp b/libs/binder/rust/tests/serialization.cpp
index 3f59dab..0cdf8c5 100644
--- a/libs/binder/rust/tests/serialization.cpp
+++ b/libs/binder/rust/tests/serialization.cpp
@@ -14,6 +14,10 @@
  * limitations under the License.
  */
 
+#include "serialization.hpp"
+#include "../../FdUtils.h"
+#include "../../tests/FileUtils.h"
+
 #include <android/binder_ibinder_platform.h>
 #include <android/binder_libbinder.h>
 #include <binder/IServiceManager.h>
@@ -24,8 +28,6 @@
 #include <gtest/gtest.h>
 #include <utils/Errors.h>
 #include <utils/String16.h>
-#include "android-base/file.h"
-#include "serialization.hpp"
 
 #include <cmath>
 #include <cstdint>
@@ -34,7 +36,7 @@
 
 using namespace std;
 using namespace android;
-using android::base::unique_fd;
+using android::binder::unique_fd;
 using android::os::ParcelFileDescriptor;
 
 // defined in Rust
@@ -349,7 +351,7 @@
 
 TEST_F(SerializationTest, SerializeFileDescriptor) {
     unique_fd out_file, in_file;
-    ASSERT_TRUE(base::Pipe(&out_file, &in_file));
+    ASSERT_TRUE(binder::Pipe(&out_file, &in_file));
 
     vector<ParcelFileDescriptor> file_descriptors;
     file_descriptors.push_back(ParcelFileDescriptor(std::move(out_file)));
diff --git a/libs/binder/servicedispatcher.cpp b/libs/binder/servicedispatcher.cpp
index f2693dd..18b178b 100644
--- a/libs/binder/servicedispatcher.cpp
+++ b/libs/binder/servicedispatcher.cpp
@@ -17,9 +17,9 @@
 #include <sysexits.h>
 #include <unistd.h>
 
+#include <filesystem>
 #include <iostream>
 
-#include <android-base/file.h>
 #include <android-base/logging.h>
 #include <android-base/properties.h>
 #include <android/debug/BnAdbCallback.h>
@@ -30,6 +30,8 @@
 #include <binder/ProcessState.h>
 #include <binder/RpcServer.h>
 
+#include "file.h"
+
 using android::BBinder;
 using android::defaultServiceManager;
 using android::OK;
@@ -38,7 +40,6 @@
 using android::status_t;
 using android::statusToString;
 using android::String16;
-using android::base::Basename;
 using android::base::GetBoolProperty;
 using android::base::InitLogging;
 using android::base::LogdLogger;
@@ -53,8 +54,8 @@
 using ServiceRetriever = decltype(&android::IServiceManager::checkService);
 using android::debug::IAdbManager;
 
-int Usage(const char* program) {
-    auto basename = Basename(program);
+int Usage(std::filesystem::path program) {
+    auto basename = program.filename();
     // clang-format off
     LOG(ERROR) << R"(dispatch calls to RPC service.
 Usage:
@@ -253,7 +254,8 @@
         mLogdLogger(id, severity, tag, file, line, message);
         if (severity >= LogSeverity::WARNING) {
             std::cout << std::flush;
-            std::cerr << Basename(getprogname()) << ": " << message << std::endl;
+            auto progname = std::filesystem::path(getprogname()).filename();
+            std::cerr << progname << ": " << message << std::endl;
         }
     }
 
diff --git a/libs/binder/tests/Android.bp b/libs/binder/tests/Android.bp
index cd3e7c0..ba8fb39 100644
--- a/libs/binder/tests/Android.bp
+++ b/libs/binder/tests/Android.bp
@@ -172,6 +172,30 @@
     ],
 }
 
+cc_library_static {
+    name: "libbinder_test_utils",
+    host_supported: true,
+    vendor_available: true,
+    target: {
+        darwin: {
+            enabled: false,
+        },
+    },
+    defaults: [
+        "binder_test_defaults",
+    ],
+    shared_libs: [
+        "libbase",
+        "liblog",
+    ],
+    srcs: [
+        "FileUtils.cpp",
+    ],
+    visibility: [
+        ":__subpackages__",
+    ],
+}
+
 cc_defaults {
     name: "binderRpcTest_common_defaults",
     host_supported: true,
@@ -185,6 +209,7 @@
     ],
 
     static_libs: [
+        "libbinder_test_utils",
         "libbinder_tls_static",
         "libbinder_tls_test_utils",
         "binderRpcTestIface-cpp",
diff --git a/libs/binder/tests/FileUtils.cpp b/libs/binder/tests/FileUtils.cpp
new file mode 100644
index 0000000..61509fe
--- /dev/null
+++ b/libs/binder/tests/FileUtils.cpp
@@ -0,0 +1,99 @@
+/*
+ * 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 "FileUtils.h"
+
+#ifdef BINDER_NO_LIBBASE
+
+#include <sys/stat.h>
+#include <filesystem>
+
+#if defined(__APPLE__)
+#include <mach-o/dyld.h>
+#endif
+#if defined(_WIN32)
+#include <direct.h>
+#include <windows.h>
+#endif
+
+namespace android::binder {
+
+bool ReadFdToString(borrowed_fd fd, std::string* content) {
+    content->clear();
+
+    // Although original we had small files in mind, this code gets used for
+    // very large files too, where the std::string growth heuristics might not
+    // be suitable. https://code.google.com/p/android/issues/detail?id=258500.
+    struct stat sb;
+    if (fstat(fd.get(), &sb) != -1 && sb.st_size > 0) {
+        content->reserve(sb.st_size);
+    }
+
+    char buf[4096] __attribute__((__uninitialized__));
+    ssize_t n;
+    while ((n = TEMP_FAILURE_RETRY(read(fd.get(), &buf[0], sizeof(buf)))) > 0) {
+        content->append(buf, n);
+    }
+    return (n == 0) ? true : false;
+}
+
+bool WriteStringToFd(std::string_view content, borrowed_fd fd) {
+    const char* p = content.data();
+    size_t left = content.size();
+    while (left > 0) {
+        ssize_t n = TEMP_FAILURE_RETRY(write(fd.get(), p, left));
+        if (n == -1) {
+            return false;
+        }
+        p += n;
+        left -= n;
+    }
+    return true;
+}
+
+static std::filesystem::path GetExecutablePath2() {
+#if defined(__linux__)
+    return std::filesystem::read_symlink("/proc/self/exe");
+#elif defined(__APPLE__)
+    char path[PATH_MAX + 1];
+    uint32_t path_len = sizeof(path);
+    int rc = _NSGetExecutablePath(path, &path_len);
+    if (rc < 0) {
+        std::unique_ptr<char> path_buf(new char[path_len]);
+        _NSGetExecutablePath(path_buf.get(), &path_len);
+        return path_buf.get();
+    }
+    return path;
+#elif defined(_WIN32)
+    char path[PATH_MAX + 1];
+    DWORD result = GetModuleFileName(NULL, path, sizeof(path) - 1);
+    if (result == 0 || result == sizeof(path) - 1) return "";
+    path[PATH_MAX - 1] = 0;
+    return path;
+#elif defined(__EMSCRIPTEN__)
+    abort();
+#else
+#error unknown OS
+#endif
+}
+
+std::string GetExecutableDirectory() {
+    return GetExecutablePath2().parent_path();
+}
+
+} // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/tests/FileUtils.h b/libs/binder/tests/FileUtils.h
new file mode 100644
index 0000000..2cbe5e7
--- /dev/null
+++ b/libs/binder/tests/FileUtils.h
@@ -0,0 +1,49 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include "../file.h"
+
+#ifndef BINDER_NO_LIBBASE
+
+namespace android::binder {
+using android::base::GetExecutableDirectory;
+using android::base::ReadFdToString;
+using android::base::WriteStringToFd;
+} // namespace android::binder
+
+#else // BINDER_NO_LIBBASE
+
+#include <binder/unique_fd.h>
+
+#include <string_view>
+
+#if !defined(_WIN32) && !defined(O_BINARY)
+/** Windows needs O_BINARY, but Unix never mangles line endings. */
+#define O_BINARY 0
+#endif
+
+namespace android::binder {
+
+bool ReadFdToString(borrowed_fd fd, std::string* content);
+bool WriteStringToFd(std::string_view content, borrowed_fd fd);
+
+std::string GetExecutableDirectory();
+
+} // namespace android::binder
+
+#endif // BINDER_NO_LIBBASE
diff --git a/libs/binder/tests/binderLibTest.cpp b/libs/binder/tests/binderLibTest.cpp
index f3969f1..cb1a1ee 100644
--- a/libs/binder/tests/binderLibTest.cpp
+++ b/libs/binder/tests/binderLibTest.cpp
@@ -30,7 +30,6 @@
 #include <android-base/properties.h>
 #include <android-base/result-gmock.h>
 #include <android-base/strings.h>
-#include <android-base/unique_fd.h>
 #include <binder/Binder.h>
 #include <binder/BpBinder.h>
 #include <binder/Functional.h>
@@ -39,6 +38,7 @@
 #include <binder/IServiceManager.h>
 #include <binder/RpcServer.h>
 #include <binder/RpcSession.h>
+#include <binder/unique_fd.h>
 #include <utils/Flattenable.h>
 
 #include <linux/sched.h>
@@ -57,6 +57,7 @@
 using namespace std::chrono_literals;
 using android::base::testing::HasValue;
 using android::base::testing::Ok;
+using android::binder::unique_fd;
 using testing::ExplainMatchResult;
 using testing::Matcher;
 using testing::Not;
@@ -847,7 +848,7 @@
         writebuf[i] = i;
     }
 
-    android::base::unique_fd read_end, write_end;
+    unique_fd read_end, write_end;
     {
         int pipefd[2];
         ASSERT_EQ(0, pipe2(pipefd, O_NONBLOCK));
@@ -1177,7 +1178,7 @@
     Parcel reply;
     EXPECT_THAT(server->transact(BINDER_LIB_TEST_GET_NON_BLOCKING_FD, {} /*data*/, &reply),
                 StatusEq(NO_ERROR));
-    base::unique_fd fd;
+    unique_fd fd;
     EXPECT_THAT(reply.readUniqueFileDescriptor(&fd), StatusEq(OK));
 
     const int result = fcntl(fd.get(), F_GETFL);
@@ -1486,7 +1487,7 @@
         BinderLibTest::SetUp();
     }
 
-    std::tuple<android::base::unique_fd, unsigned int> CreateSocket() {
+    std::tuple<unique_fd, unsigned int> CreateSocket() {
         auto rpcServer = RpcServer::make();
         EXPECT_NE(nullptr, rpcServer);
         if (rpcServer == nullptr) return {};
@@ -1553,7 +1554,7 @@
 TEST_P(BinderLibRpcTestP, SetRpcClientDebugNoFd) {
     auto binder = GetService();
     ASSERT_TRUE(binder != nullptr);
-    EXPECT_THAT(binder->setRpcClientDebug(android::base::unique_fd(), sp<BBinder>::make()),
+    EXPECT_THAT(binder->setRpcClientDebug(unique_fd(), sp<BBinder>::make()),
                 Debuggable(StatusEq(BAD_VALUE)));
 }
 
@@ -1823,7 +1824,7 @@
                 int ret;
                 int32_t size;
                 const void *buf;
-                android::base::unique_fd fd;
+                unique_fd fd;
 
                 ret = data.readUniqueParcelFileDescriptor(&fd);
                 if (ret != NO_ERROR) {
@@ -1888,7 +1889,7 @@
                     ALOGE("Could not make socket non-blocking: %s", strerror(errno));
                     return UNKNOWN_ERROR;
                 }
-                base::unique_fd out(sockets[0]);
+                unique_fd out(sockets[0]);
                 status_t writeResult = reply->writeUniqueFileDescriptor(out);
                 if (writeResult != NO_ERROR) {
                     ALOGE("Could not write unique_fd");
diff --git a/libs/binder/tests/binderParcelUnitTest.cpp b/libs/binder/tests/binderParcelUnitTest.cpp
index 0a0dae0..34fc43f 100644
--- a/libs/binder/tests/binderParcelUnitTest.cpp
+++ b/libs/binder/tests/binderParcelUnitTest.cpp
@@ -29,8 +29,8 @@
 using android::status_t;
 using android::String16;
 using android::String8;
-using android::base::unique_fd;
 using android::binder::Status;
+using android::binder::unique_fd;
 
 TEST(Parcel, NonNullTerminatedString8) {
     String8 kTestString = String8("test-is-good");
diff --git a/libs/binder/tests/binderRecordReplayTest.cpp b/libs/binder/tests/binderRecordReplayTest.cpp
index d08a9bb..73c0a94 100644
--- a/libs/binder/tests/binderRecordReplayTest.cpp
+++ b/libs/binder/tests/binderRecordReplayTest.cpp
@@ -15,15 +15,14 @@
  */
 
 #include <BnBinderRecordReplayTest.h>
-#include <android-base/file.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 <binder/unique_fd.h>
 
 #include <fuzzbinder/libbinder_driver.h>
 #include <fuzzer/FuzzedDataProvider.h>
@@ -33,11 +32,14 @@
 
 #include <sys/prctl.h>
 
+#include "../file.h"
 #include "parcelables/SingleDataParcelable.h"
 
 using namespace android;
 using android::generateSeedsFromRecording;
+using android::binder::borrowed_fd;
 using android::binder::Status;
+using android::binder::unique_fd;
 using android::binder::debug::RecordedTransaction;
 using parcelables::SingleDataParcelable;
 
@@ -91,7 +93,7 @@
     GENERATE_GETTER_SETTER(SingleDataParcelableArray, std::vector<SingleDataParcelable>);
 };
 
-std::vector<uint8_t> retrieveData(base::borrowed_fd fd) {
+std::vector<uint8_t> retrieveData(borrowed_fd fd) {
     struct stat fdStat;
     EXPECT_TRUE(fstat(fd.get(), &fdStat) != -1);
     EXPECT_TRUE(fdStat.st_size != 0);
@@ -103,8 +105,8 @@
 }
 
 void replayFuzzService(const sp<BpBinder>& binder, const RecordedTransaction& transaction) {
-    base::unique_fd seedFd(open("/data/local/tmp/replayFuzzService",
-                                O_RDWR | O_CREAT | O_CLOEXEC | O_TRUNC, 0666));
+    unique_fd seedFd(open("/data/local/tmp/replayFuzzService",
+                          O_RDWR | O_CREAT | O_CLOEXEC | O_TRUNC, 0666));
     ASSERT_TRUE(seedFd.ok());
 
     // generate corpus from this transaction.
@@ -148,8 +150,8 @@
                       Status (IBinderRecordReplayTest::*get)(U*), U changedValue) {
         auto replayFunctions = {&replayBinder, &replayFuzzService};
         for (auto replayFunc : replayFunctions) {
-            base::unique_fd fd(open("/data/local/tmp/binderRecordReplayTest.rec",
-                                    O_RDWR | O_CREAT | O_CLOEXEC, 0666));
+            unique_fd fd(open("/data/local/tmp/binderRecordReplayTest.rec",
+                              O_RDWR | O_CREAT | O_CLOEXEC, 0666));
             ASSERT_TRUE(fd.ok());
 
             // record a transaction
diff --git a/libs/binder/tests/binderRecordedTransactionTest.cpp b/libs/binder/tests/binderRecordedTransactionTest.cpp
index 30172cc..6eb78d0 100644
--- a/libs/binder/tests/binderRecordedTransactionTest.cpp
+++ b/libs/binder/tests/binderRecordedTransactionTest.cpp
@@ -20,7 +20,7 @@
 
 using android::Parcel;
 using android::status_t;
-using android::base::unique_fd;
+using android::binder::unique_fd;
 using android::binder::debug::RecordedTransaction;
 
 TEST(BinderRecordedTransaction, RoundTripEncoding) {
diff --git a/libs/binder/tests/binderRpcTest.cpp b/libs/binder/tests/binderRpcTest.cpp
index 624edba..2769a88 100644
--- a/libs/binder/tests/binderRpcTest.cpp
+++ b/libs/binder/tests/binderRpcTest.cpp
@@ -25,6 +25,7 @@
 #include <thread>
 #include <type_traits>
 
+#include <dirent.h>
 #include <dlfcn.h>
 #include <poll.h>
 #include <sys/prctl.h>
@@ -41,6 +42,10 @@
 
 using namespace std::chrono_literals;
 using namespace std::placeholders;
+using android::binder::borrowed_fd;
+using android::binder::GetExecutableDirectory;
+using android::binder::ReadFdToString;
+using android::binder::unique_fd;
 using testing::AssertionFailure;
 using testing::AssertionResult;
 using testing::AssertionSuccess;
@@ -83,12 +88,11 @@
         mPid = other.mPid;
         other.mPid = 0;
     }
-    Process(const std::function<void(android::base::borrowed_fd /* writeEnd */,
-                                     android::base::borrowed_fd /* readEnd */)>& f) {
-        android::base::unique_fd childWriteEnd;
-        android::base::unique_fd childReadEnd;
-        if (!android::base::Pipe(&mReadEnd, &childWriteEnd, 0)) PLOGF("child write pipe failed");
-        if (!android::base::Pipe(&childReadEnd, &mWriteEnd, 0)) PLOGF("child read pipe failed");
+    Process(const std::function<void(borrowed_fd /* writeEnd */, borrowed_fd /* readEnd */)>& f) {
+        unique_fd childWriteEnd;
+        unique_fd childReadEnd;
+        if (!binder::Pipe(&mReadEnd, &childWriteEnd, 0)) PLOGF("child write pipe failed");
+        if (!binder::Pipe(&childReadEnd, &mWriteEnd, 0)) PLOGF("child read pipe failed");
         if (0 == (mPid = fork())) {
             // racey: assume parent doesn't crash before this is set
             prctl(PR_SET_PDEATHSIG, SIGHUP);
@@ -110,8 +114,8 @@
             }
         }
     }
-    android::base::borrowed_fd readEnd() { return mReadEnd; }
-    android::base::borrowed_fd writeEnd() { return mWriteEnd; }
+    borrowed_fd readEnd() { return mReadEnd; }
+    borrowed_fd writeEnd() { return mWriteEnd; }
 
     void setCustomExitStatusCheck(std::function<void(int wstatus)> f) {
         mCustomExitStatusCheck = std::move(f);
@@ -125,8 +129,8 @@
 private:
     std::function<void(int wstatus)> mCustomExitStatusCheck;
     pid_t mPid = 0;
-    android::base::unique_fd mReadEnd;
-    android::base::unique_fd mWriteEnd;
+    unique_fd mReadEnd;
+    unique_fd mWriteEnd;
 };
 
 static std::string allocateSocketAddress() {
@@ -142,10 +146,9 @@
     return vsockPort++;
 }
 
-static base::unique_fd initUnixSocket(std::string addr) {
+static unique_fd initUnixSocket(std::string addr) {
     auto socket_addr = UnixSocketAddress(addr.c_str());
-    base::unique_fd fd(
-            TEMP_FAILURE_RETRY(socket(socket_addr.addr()->sa_family, SOCK_STREAM, AF_UNIX)));
+    unique_fd fd(TEMP_FAILURE_RETRY(socket(socket_addr.addr()->sa_family, SOCK_STREAM, AF_UNIX)));
     if (!fd.ok()) PLOGF("initUnixSocket failed to create socket");
     if (0 != TEMP_FAILURE_RETRY(bind(fd.get(), socket_addr.addr(), socket_addr.addrSize()))) {
         PLOGF("initUnixSocket failed to bind");
@@ -204,8 +207,8 @@
     void terminate() override { host.terminate(); }
 };
 
-static base::unique_fd connectTo(const RpcSocketAddress& addr) {
-    base::unique_fd serverFd(
+static unique_fd connectTo(const RpcSocketAddress& addr) {
+    unique_fd serverFd(
             TEMP_FAILURE_RETRY(socket(addr.addr()->sa_family, SOCK_STREAM | SOCK_CLOEXEC, 0)));
     if (!serverFd.ok()) {
         PLOGF("Could not create socket %s", addr.toString().c_str());
@@ -218,15 +221,15 @@
 }
 
 #ifndef BINDER_RPC_TO_TRUSTY_TEST
-static base::unique_fd connectToUnixBootstrap(const RpcTransportFd& transportFd) {
-    base::unique_fd sockClient, sockServer;
-    if (!base::Socketpair(SOCK_STREAM, &sockClient, &sockServer)) {
+static unique_fd connectToUnixBootstrap(const RpcTransportFd& transportFd) {
+    unique_fd sockClient, sockServer;
+    if (!binder::Socketpair(SOCK_STREAM, &sockClient, &sockServer)) {
         PLOGF("Failed socketpair()");
     }
 
     int zero = 0;
     iovec iov{&zero, sizeof(zero)};
-    std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+    std::vector<std::variant<unique_fd, borrowed_fd>> fds;
     fds.emplace_back(std::move(sockServer));
 
     if (binder::os::sendMessageOnSocket(transportFd, &iov, 1, &fds) < 0) {
@@ -259,12 +262,12 @@
     bool singleThreaded = GetParam().singleThreaded;
     bool noKernel = GetParam().noKernel;
 
-    std::string path = android::base::GetExecutableDirectory();
+    std::string path = GetExecutableDirectory();
     auto servicePath =
             std::format("{}/binder_rpc_test_service{}{}", path,
                         singleThreaded ? "_single_threaded" : "", noKernel ? "_no_kernel" : "");
 
-    base::unique_fd bootstrapClientFd, socketFd;
+    unique_fd bootstrapClientFd, socketFd;
 
     auto addr = allocateSocketAddress();
     // Initializes the socket before the fork/exec.
@@ -273,13 +276,13 @@
     } else if (socketType == SocketType::UNIX_BOOTSTRAP) {
         // Do not set O_CLOEXEC, bootstrapServerFd needs to survive fork/exec.
         // This is because we cannot pass ParcelFileDescriptor over a pipe.
-        if (!base::Socketpair(SOCK_STREAM, &bootstrapClientFd, &socketFd)) {
+        if (!binder::Socketpair(SOCK_STREAM, &bootstrapClientFd, &socketFd)) {
             PLOGF("Failed socketpair()");
         }
     }
 
     auto ret = std::make_unique<LinuxProcessSession>(
-            Process([=](android::base::borrowed_fd writeEnd, android::base::borrowed_fd readEnd) {
+            Process([=](borrowed_fd writeEnd, borrowed_fd readEnd) {
                 if (socketType == SocketType::TIPC) {
                     // Trusty has a single persistent service
                     return;
@@ -374,7 +377,7 @@
                 break;
             case SocketType::UNIX_BOOTSTRAP:
                 status = session->setupUnixDomainSocketBootstrapClient(
-                        base::unique_fd(dup(bootstrapClientFd.get())));
+                        unique_fd(dup(bootstrapClientFd.get())));
                 break;
             case SocketType::VSOCK:
                 status = session->setupVsockClient(VMADDR_CID_LOCAL, serverConfig.vsockPort);
@@ -391,14 +394,14 @@
                         // in case the service is slow to start
                         int tipcFd = tipc_connect(kTrustyIpcDevice, port.c_str());
                         if (tipcFd >= 0) {
-                            return android::base::unique_fd(tipcFd);
+                            return unique_fd(tipcFd);
                         }
                         usleep(50000);
                     }
-                    return android::base::unique_fd();
+                    return unique_fd();
 #else
                     LOG_ALWAYS_FATAL("Tried to connect to Trusty outside of vendor");
-                    return android::base::unique_fd();
+                    return unique_fd();
 #endif
                 });
                 break;
@@ -590,12 +593,12 @@
     android::os::ParcelFileDescriptor fdA;
     EXPECT_OK(proc.rootIface->blockingRecvFd(&fdA));
     std::string result;
-    ASSERT_TRUE(android::base::ReadFdToString(fdA.get(), &result));
+    ASSERT_TRUE(ReadFdToString(fdA.get(), &result));
     EXPECT_EQ(result, "a");
 
     android::os::ParcelFileDescriptor fdB;
     EXPECT_OK(proc.rootIface->blockingRecvFd(&fdB));
-    ASSERT_TRUE(android::base::ReadFdToString(fdB.get(), &result));
+    ASSERT_TRUE(ReadFdToString(fdB.get(), &result));
     EXPECT_EQ(result, "b");
 
     saturateThreadPool(kNumServerThreads, proc.rootIface);
@@ -952,7 +955,7 @@
     ASSERT_TRUE(status.isOk()) << status;
 
     std::string result;
-    ASSERT_TRUE(android::base::ReadFdToString(out.get(), &result));
+    ASSERT_TRUE(ReadFdToString(out.get(), &result));
     ASSERT_EQ(result, "hello");
 }
 
@@ -982,7 +985,7 @@
     ASSERT_TRUE(status.isOk()) << status;
 
     std::string result;
-    EXPECT_TRUE(android::base::ReadFdToString(out.get(), &result));
+    EXPECT_TRUE(ReadFdToString(out.get(), &result));
     EXPECT_EQ(result, "123abcd");
 }
 
@@ -1007,7 +1010,7 @@
     ASSERT_TRUE(status.isOk()) << status;
 
     std::string result;
-    EXPECT_TRUE(android::base::ReadFdToString(out.get(), &result));
+    EXPECT_TRUE(ReadFdToString(out.get(), &result));
     EXPECT_EQ(result, std::string(253, 'a'));
 }
 
@@ -1152,7 +1155,7 @@
     // We don't need to enable TLS to know if vsock is supported.
     unsigned int vsockPort = allocateVsockPort();
 
-    android::base::unique_fd serverFd(
+    unique_fd serverFd(
             TEMP_FAILURE_RETRY(socket(AF_VSOCK, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0)));
 
     if (errno == EAFNOSUPPORT) {
@@ -1179,7 +1182,7 @@
     // to see if the kernel supports it. It's safe to use a blocking
     // connect because vsock sockets have a 2 second connection timeout,
     // and they return ETIMEDOUT after that.
-    android::base::unique_fd connectFd(
+    unique_fd connectFd(
             TEMP_FAILURE_RETRY(socket(AF_VSOCK, SOCK_STREAM | SOCK_CLOEXEC | SOCK_NONBLOCK, 0)));
     LOG_ALWAYS_FATAL_IF(!connectFd.ok(), "Could not create socket for port %u: %s", vsockPort,
                         strerror(errno));
@@ -1193,7 +1196,7 @@
     ret = TEMP_FAILURE_RETRY(connect(connectFd.get(), reinterpret_cast<sockaddr*>(&connectAddr),
                                      sizeof(connectAddr)));
     if (ret != 0 && (errno == EAGAIN || errno == EINPROGRESS)) {
-        android::base::unique_fd acceptFd;
+        unique_fd acceptFd;
         while (true) {
             pollfd pfd[]{
                     {.fd = serverFd.get(), .events = POLLIN, .revents = 0},
@@ -1423,14 +1426,14 @@
 };
 
 TEST_P(BinderRpcServerOnly, SetExternalServerTest) {
-    base::unique_fd sink(TEMP_FAILURE_RETRY(open("/dev/null", O_RDWR)));
+    unique_fd sink(TEMP_FAILURE_RETRY(open("/dev/null", O_RDWR)));
     int sinkFd = sink.get();
     auto server = RpcServer::make(newTlsFactory(std::get<0>(GetParam())));
     ASSERT_TRUE(server->setProtocolVersion(std::get<1>(GetParam())));
     ASSERT_FALSE(server->hasServer());
     ASSERT_EQ(OK, server->setupExternalServer(std::move(sink)));
     ASSERT_TRUE(server->hasServer());
-    base::unique_fd retrieved = server->releaseServer();
+    unique_fd retrieved = server->releaseServer();
     ASSERT_FALSE(server->hasServer());
     ASSERT_EQ(sinkFd, retrieved.get());
 }
@@ -1476,12 +1479,12 @@
     // in the client half of the tests.
     using Param =
             std::tuple<SocketType, RpcSecurity, std::optional<RpcCertificateFormat>, uint32_t>;
-    using ConnectToServer = std::function<base::unique_fd()>;
+    using ConnectToServer = std::function<unique_fd()>;
 
     // A server that handles client socket connections.
     class Server {
     public:
-        using AcceptConnection = std::function<base::unique_fd(Server*)>;
+        using AcceptConnection = std::function<unique_fd(Server*)>;
 
         explicit Server() {}
         Server(Server&&) = default;
@@ -1510,8 +1513,8 @@
                     };
                 } break;
                 case SocketType::UNIX_BOOTSTRAP: {
-                    base::unique_fd bootstrapFdClient, bootstrapFdServer;
-                    if (!base::Socketpair(SOCK_STREAM, &bootstrapFdClient, &bootstrapFdServer)) {
+                    unique_fd bootstrapFdClient, bootstrapFdServer;
+                    if (!binder::Socketpair(SOCK_STREAM, &bootstrapFdClient, &bootstrapFdServer)) {
                         return AssertionFailure() << "Socketpair() failed";
                     }
                     auto status = rpcServer->setupUnixDomainSocketBootstrapServer(
@@ -1554,7 +1557,7 @@
                     mConnectToServer = [port] {
                         const char* addr = kLocalInetAddress;
                         auto aiStart = InetSocketAddress::getAddrInfo(addr, port);
-                        if (aiStart == nullptr) return base::unique_fd{};
+                        if (aiStart == nullptr) return unique_fd{};
                         for (auto ai = aiStart.get(); ai != nullptr; ai = ai->ai_next) {
                             auto fd = connectTo(
                                     InetSocketAddress(ai->ai_addr, ai->ai_addrlen, addr, port));
@@ -1562,7 +1565,7 @@
                         }
                         ALOGE("None of the socket address resolved for %s:%u can be connected",
                               addr, port);
-                        return base::unique_fd{};
+                        return unique_fd{};
                     };
                 } break;
                 case SocketType::TIPC: {
@@ -1586,13 +1589,13 @@
             mThread = std::make_unique<std::thread>(&Server::run, this);
         }
 
-        base::unique_fd acceptServerConnection() {
-            return base::unique_fd(TEMP_FAILURE_RETRY(
+        unique_fd acceptServerConnection() {
+            return unique_fd(TEMP_FAILURE_RETRY(
                     accept4(mFd.fd.get(), nullptr, nullptr, SOCK_CLOEXEC | SOCK_NONBLOCK)));
         }
 
-        base::unique_fd recvmsgServerConnection() {
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>> fds;
+        unique_fd recvmsgServerConnection() {
+            std::vector<std::variant<unique_fd, borrowed_fd>> fds;
             int buf;
             iovec iov{&buf, sizeof(buf)};
 
@@ -1601,7 +1604,7 @@
             }
             LOG_ALWAYS_FATAL_IF(fds.size() != 1, "Expected one FD from receiveMessage(), got %zu",
                                 fds.size());
-            return std::move(std::get<base::unique_fd>(fds[0]));
+            return std::move(std::get<unique_fd>(fds[0]));
         }
 
         void run() {
@@ -1609,13 +1612,13 @@
 
             std::vector<std::thread> threads;
             while (OK == mFdTrigger->triggerablePoll(mFd, POLLIN)) {
-                base::unique_fd acceptedFd = mAcceptConnection(this);
+                unique_fd acceptedFd = mAcceptConnection(this);
                 threads.emplace_back(&Server::handleOne, this, std::move(acceptedFd));
             }
 
             for (auto& thread : threads) thread.join();
         }
-        void handleOne(android::base::unique_fd acceptedFd) {
+        void handleOne(unique_fd acceptedFd) {
             ASSERT_TRUE(acceptedFd.ok());
             RpcTransportFd transportFd(std::move(acceptedFd));
             auto serverTransport = mCtx->newTransport(std::move(transportFd), mFdTrigger.get());
diff --git a/libs/binder/tests/binderRpcTestCommon.h b/libs/binder/tests/binderRpcTestCommon.h
index b2b63e4..a55edd2 100644
--- a/libs/binder/tests/binderRpcTestCommon.h
+++ b/libs/binder/tests/binderRpcTestCommon.h
@@ -41,7 +41,6 @@
 #endif
 
 #ifndef __TRUSTY__
-#include <android-base/file.h>
 #include <android/binder_auto_utils.h>
 #include <android/binder_libbinder.h>
 #include <binder/ProcessState.h>
@@ -58,7 +57,9 @@
 
 #include "../BuildFlags.h"
 #include "../FdTrigger.h"
+#include "../FdUtils.h"
 #include "../RpcState.h" // for debugging
+#include "FileUtils.h"
 #include "format.h"
 #include "utils/Errors.h"
 
@@ -156,28 +157,28 @@
 };
 
 #ifndef __TRUSTY__
-static inline void writeString(android::base::borrowed_fd fd, std::string_view str) {
+static inline void writeString(binder::borrowed_fd fd, std::string_view str) {
     uint64_t length = str.length();
-    LOG_ALWAYS_FATAL_IF(!android::base::WriteFully(fd, &length, sizeof(length)));
-    LOG_ALWAYS_FATAL_IF(!android::base::WriteFully(fd, str.data(), str.length()));
+    LOG_ALWAYS_FATAL_IF(!android::binder::WriteFully(fd, &length, sizeof(length)));
+    LOG_ALWAYS_FATAL_IF(!android::binder::WriteFully(fd, str.data(), str.length()));
 }
 
-static inline std::string readString(android::base::borrowed_fd fd) {
+static inline std::string readString(binder::borrowed_fd fd) {
     uint64_t length;
-    LOG_ALWAYS_FATAL_IF(!android::base::ReadFully(fd, &length, sizeof(length)));
+    LOG_ALWAYS_FATAL_IF(!android::binder::ReadFully(fd, &length, sizeof(length)));
     std::string ret(length, '\0');
-    LOG_ALWAYS_FATAL_IF(!android::base::ReadFully(fd, ret.data(), length));
+    LOG_ALWAYS_FATAL_IF(!android::binder::ReadFully(fd, ret.data(), length));
     return ret;
 }
 
-static inline void writeToFd(android::base::borrowed_fd fd, const Parcelable& parcelable) {
+static inline void writeToFd(binder::borrowed_fd fd, const Parcelable& parcelable) {
     Parcel parcel;
     LOG_ALWAYS_FATAL_IF(OK != parcelable.writeToParcel(&parcel));
     writeString(fd, std::string(reinterpret_cast<const char*>(parcel.data()), parcel.dataSize()));
 }
 
 template <typename T>
-static inline T readFromFd(android::base::borrowed_fd fd) {
+static inline T readFromFd(binder::borrowed_fd fd) {
     std::string data = readString(fd);
     Parcel parcel;
     LOG_ALWAYS_FATAL_IF(OK !=
@@ -208,12 +209,12 @@
 }
 
 // Create an FD that returns `contents` when read.
-static inline base::unique_fd mockFileDescriptor(std::string contents) {
-    android::base::unique_fd readFd, writeFd;
-    LOG_ALWAYS_FATAL_IF(!android::base::Pipe(&readFd, &writeFd), "%s", strerror(errno));
+static inline binder::unique_fd mockFileDescriptor(std::string contents) {
+    binder::unique_fd readFd, writeFd;
+    LOG_ALWAYS_FATAL_IF(!binder::Pipe(&readFd, &writeFd), "%s", strerror(errno));
     RpcMaybeThread([writeFd = std::move(writeFd), contents = std::move(contents)]() {
         signal(SIGPIPE, SIG_IGN); // ignore possible SIGPIPE from the write
-        if (!WriteStringToFd(contents, writeFd)) {
+        if (!android::binder::WriteStringToFd(contents, writeFd)) {
             int savedErrno = errno;
             LOG_ALWAYS_FATAL_IF(EPIPE != savedErrno, "mockFileDescriptor write failed: %s",
                                 strerror(savedErrno));
diff --git a/libs/binder/tests/binderRpcTestService.cpp b/libs/binder/tests/binderRpcTestService.cpp
index 5025bd6..28125f1 100644
--- a/libs/binder/tests/binderRpcTestService.cpp
+++ b/libs/binder/tests/binderRpcTestService.cpp
@@ -17,6 +17,8 @@
 #include "binderRpcTestCommon.h"
 
 using namespace android;
+using android::binder::ReadFdToString;
+using android::binder::unique_fd;
 
 class MyBinderRpcTestAndroid : public MyBinderRpcTestBase {
 public:
@@ -65,17 +67,17 @@
         std::string acc;
         for (const auto& file : files) {
             std::string result;
-            LOG_ALWAYS_FATAL_IF(!android::base::ReadFdToString(file.get(), &result));
+            LOG_ALWAYS_FATAL_IF(!ReadFdToString(file.get(), &result));
             acc.append(result);
         }
         out->reset(mockFileDescriptor(acc));
         return Status::ok();
     }
 
-    HandoffChannel<android::base::unique_fd> mFdChannel;
+    HandoffChannel<unique_fd> mFdChannel;
 
     Status blockingSendFdOneway(const android::os::ParcelFileDescriptor& fd) override {
-        mFdChannel.write(android::base::unique_fd(fcntl(fd.get(), F_DUPFD_CLOEXEC, 0)));
+        mFdChannel.write(unique_fd(fcntl(fd.get(), F_DUPFD_CLOEXEC, 0)));
         return Status::ok();
     }
 
@@ -101,8 +103,8 @@
     __android_log_set_logger(__android_log_stderr_logger);
 
     LOG_ALWAYS_FATAL_IF(argc != 3, "Invalid number of arguments: %d", argc);
-    base::unique_fd writeEnd(atoi(argv[1]));
-    base::unique_fd readEnd(atoi(argv[2]));
+    unique_fd writeEnd(atoi(argv[1]));
+    unique_fd readEnd(atoi(argv[2]));
 
     auto serverConfig = readFromFd<BinderRpcTestServerConfig>(readEnd);
     auto socketType = static_cast<SocketType>(serverConfig.socketType);
@@ -123,7 +125,7 @@
     server->setSupportedFileDescriptorTransportModes(serverSupportedFileDescriptorTransportModes);
 
     unsigned int outPort = 0;
-    base::unique_fd socketFd(serverConfig.socketFd);
+    unique_fd socketFd(serverConfig.socketFd);
 
     switch (socketType) {
         case SocketType::PRECONNECTED:
diff --git a/libs/binder/tests/binderRpcTestTrusty.cpp b/libs/binder/tests/binderRpcTestTrusty.cpp
index 8acaae6..18751cc 100644
--- a/libs/binder/tests/binderRpcTestTrusty.cpp
+++ b/libs/binder/tests/binderRpcTestTrusty.cpp
@@ -22,6 +22,8 @@
 
 #include "binderRpcTestFixture.h"
 
+using android::binder::unique_fd;
+
 namespace android {
 
 // Destructors need to be defined, even if pure virtual
@@ -74,7 +76,7 @@
             auto port = trustyIpcPort(serverVersion);
             int rc = connect(port.c_str(), IPC_CONNECT_WAIT_FOR_PORT);
             LOG_ALWAYS_FATAL_IF(rc < 0, "Failed to connect to service: %d", rc);
-            return base::unique_fd(rc);
+            return unique_fd(rc);
         });
         if (options.allowConnectFailure && status != OK) {
             ret->sessions.clear();
diff --git a/libs/binder/tests/binderSafeInterfaceTest.cpp b/libs/binder/tests/binderSafeInterfaceTest.cpp
index cbbbe74..41cb552 100644
--- a/libs/binder/tests/binderSafeInterfaceTest.cpp
+++ b/libs/binder/tests/binderSafeInterfaceTest.cpp
@@ -41,6 +41,7 @@
 #include <sys/prctl.h>
 
 using namespace std::chrono_literals; // NOLINT - google-build-using-namespace
+using android::binder::unique_fd;
 
 namespace android {
 namespace tests {
@@ -685,7 +686,7 @@
 
 TEST_F(SafeInterfaceTest, TestIncrementNativeHandle) {
     // Create an fd we can use to send and receive from the remote process
-    base::unique_fd eventFd{eventfd(0 /*initval*/, 0 /*flags*/)};
+    unique_fd eventFd{eventfd(0 /*initval*/, 0 /*flags*/)};
     ASSERT_NE(-1, eventFd);
 
     // Determine the maximum number of fds this process can have open
diff --git a/libs/binder/tests/binderTextOutputTest.cpp b/libs/binder/tests/binderTextOutputTest.cpp
index b37030e..a648c08 100644
--- a/libs/binder/tests/binderTextOutputTest.cpp
+++ b/libs/binder/tests/binderTextOutputTest.cpp
@@ -20,13 +20,14 @@
 #include <limits>
 #include <cstddef>
 
-#include "android-base/file.h"
 #include "android-base/test_utils.h"
 #include <gtest/gtest.h>
 
 #include <binder/Parcel.h>
 #include <binder/TextOutput.h>
 
+#include "../file.h"
+
 static void CheckMessage(CapturedStderr& cap,
                          const char* expected,
                          bool singleline) {
diff --git a/libs/binder/tests/parcel_fuzzer/binder.cpp b/libs/binder/tests/parcel_fuzzer/binder.cpp
index ffeca2d..08fe071 100644
--- a/libs/binder/tests/parcel_fuzzer/binder.cpp
+++ b/libs/binder/tests/parcel_fuzzer/binder.cpp
@@ -29,8 +29,9 @@
 
 #include "../../Utils.h"
 
-using ::android::status_t;
 using ::android::HexString;
+using ::android::status_t;
+using ::android::binder::unique_fd;
 
 enum ByteEnum : int8_t {};
 enum IntEnum : int32_t {};
@@ -307,11 +308,12 @@
     },
     PARCEL_READ_NO_STATUS(int, readFileDescriptor),
     PARCEL_READ_NO_STATUS(int, readParcelFileDescriptor),
-    PARCEL_READ_WITH_STATUS(android::base::unique_fd, readUniqueFileDescriptor),
+    PARCEL_READ_WITH_STATUS(unique_fd, readUniqueFileDescriptor),
 
-    PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<android::base::unique_fd>>, readUniqueFileDescriptorVector),
-    PARCEL_READ_WITH_STATUS(std::optional<std::vector<android::base::unique_fd>>, readUniqueFileDescriptorVector),
-    PARCEL_READ_WITH_STATUS(std::vector<android::base::unique_fd>, readUniqueFileDescriptorVector),
+    PARCEL_READ_WITH_STATUS(std::unique_ptr<std::vector<unique_fd>>,
+            readUniqueFileDescriptorVector),
+    PARCEL_READ_WITH_STATUS(std::optional<std::vector<unique_fd>>, readUniqueFileDescriptorVector),
+    PARCEL_READ_WITH_STATUS(std::vector<unique_fd>, readUniqueFileDescriptorVector),
 
     [] (const ::android::Parcel& p, FuzzedDataProvider& provider) {
         size_t len = provider.ConsumeIntegral<size_t>();
diff --git a/libs/binder/tests/parcel_fuzzer/binder2corpus/binder2corpus.cpp b/libs/binder/tests/parcel_fuzzer/binder2corpus/binder2corpus.cpp
index c0fdaea..57521f4 100644
--- a/libs/binder/tests/parcel_fuzzer/binder2corpus/binder2corpus.cpp
+++ b/libs/binder/tests/parcel_fuzzer/binder2corpus/binder2corpus.cpp
@@ -14,18 +14,20 @@
  * limitations under the License.
  */
 
-#include <android-base/file.h>
+#include "../../FileUtils.h"
+
 #include <android-base/logging.h>
-#include <android-base/unique_fd.h>
 #include <binder/RecordedTransaction.h>
+#include <binder/unique_fd.h>
 
 #include <fuzzseeds/random_parcel_seeds.h>
 
 #include <sys/prctl.h>
+#include <sys/stat.h>
 
 using android::generateSeedsFromRecording;
 using android::status_t;
-using android::base::unique_fd;
+using android::binder::unique_fd;
 using android::binder::debug::RecordedTransaction;
 
 status_t generateCorpus(const char* recordingPath, const char* corpusDir) {
@@ -49,7 +51,7 @@
         std::string filePath = std::string(corpusDir) + std::string("transaction_") +
                 std::to_string(transactionNumber);
         constexpr int openFlags = O_WRONLY | O_CREAT | O_BINARY | O_CLOEXEC;
-        android::base::unique_fd corpusFd(open(filePath.c_str(), openFlags, 0666));
+        unique_fd corpusFd(open(filePath.c_str(), openFlags, 0666));
         if (!corpusFd.ok()) {
             std::cerr << "Failed to open fd. Path " << filePath
                       << " with error: " << strerror(errno) << std::endl;
diff --git a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_fd.h b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_fd.h
index 6ea9708..8d1299d 100644
--- a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_fd.h
+++ b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_fd.h
@@ -16,7 +16,7 @@
 
 #pragma once
 
-#include <android-base/unique_fd.h>
+#include <binder/unique_fd.h>
 #include <fuzzer/FuzzedDataProvider.h>
 
 #include <vector>
@@ -27,6 +27,6 @@
 // get a random FD for use in fuzzing, of a few different specific types
 //
 // may return multiple FDs (e.g. pipe), but will always return at least one
-std::vector<base::unique_fd> getRandomFds(FuzzedDataProvider* provider);
+std::vector<binder::unique_fd> getRandomFds(FuzzedDataProvider* provider);
 
 } // namespace android
diff --git a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_parcel.h b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_parcel.h
index 27587a9..2812da7 100644
--- a/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_parcel.h
+++ b/libs/binder/tests/parcel_fuzzer/include_random_parcel/fuzzbinder/random_parcel.h
@@ -27,7 +27,7 @@
 struct RandomParcelOptions {
     std::function<void(Parcel* p, FuzzedDataProvider& provider)> writeHeader;
     std::vector<sp<IBinder>> extraBinders;
-    std::vector<base::unique_fd> extraFds;
+    std::vector<binder::unique_fd> extraFds;
 };
 
 /**
diff --git a/libs/binder/tests/parcel_fuzzer/include_random_parcel_seeds/fuzzseeds/random_parcel_seeds.h b/libs/binder/tests/parcel_fuzzer/include_random_parcel_seeds/fuzzseeds/random_parcel_seeds.h
index 071250d..694b68d 100644
--- a/libs/binder/tests/parcel_fuzzer/include_random_parcel_seeds/fuzzseeds/random_parcel_seeds.h
+++ b/libs/binder/tests/parcel_fuzzer/include_random_parcel_seeds/fuzzseeds/random_parcel_seeds.h
@@ -14,7 +14,8 @@
  * limitations under the License.
  */
 
-#include <android-base/file.h>
+#include "../../../../file.h"
+
 #include <android-base/logging.h>
 
 #include <binder/Binder.h>
@@ -40,6 +41,6 @@
 template <typename T>
 void writeReversedBuffer(std::vector<std::byte>& integralBuffer, T val);
 } // namespace impl
-void generateSeedsFromRecording(base::borrowed_fd fd,
+void generateSeedsFromRecording(binder::borrowed_fd fd,
                                 const binder::debug::RecordedTransaction& transaction);
 } // namespace android
diff --git a/libs/binder/tests/parcel_fuzzer/libbinder_driver.cpp b/libs/binder/tests/parcel_fuzzer/libbinder_driver.cpp
index 38e6f32..02e69cc 100644
--- a/libs/binder/tests/parcel_fuzzer/libbinder_driver.cpp
+++ b/libs/binder/tests/parcel_fuzzer/libbinder_driver.cpp
@@ -23,6 +23,8 @@
 
 #include <private/android_filesystem_config.h>
 
+using android::binder::unique_fd;
+
 namespace android {
 
 void fuzzService(const sp<IBinder>& binder, FuzzedDataProvider&& provider) {
@@ -103,7 +105,7 @@
                                     retBinders.end());
         auto retFds = reply.debugReadAllFileDescriptors();
         for (size_t i = 0; i < retFds.size(); i++) {
-            options.extraFds.push_back(base::unique_fd(dup(retFds[i])));
+            options.extraFds.push_back(unique_fd(dup(retFds[i])));
         }
     }
 
diff --git a/libs/binder/tests/parcel_fuzzer/random_fd.cpp b/libs/binder/tests/parcel_fuzzer/random_fd.cpp
index 4a9bd07..c7d1533 100644
--- a/libs/binder/tests/parcel_fuzzer/random_fd.cpp
+++ b/libs/binder/tests/parcel_fuzzer/random_fd.cpp
@@ -23,7 +23,7 @@
 
 namespace android {
 
-using base::unique_fd;
+using binder::unique_fd;
 
 std::vector<unique_fd> getRandomFds(FuzzedDataProvider* provider) {
     const char* fdType;
diff --git a/libs/binder/tests/parcel_fuzzer/random_parcel.cpp b/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
index f367b41..4e58dc4 100644
--- a/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
+++ b/libs/binder/tests/parcel_fuzzer/random_parcel.cpp
@@ -23,6 +23,8 @@
 #include <fuzzbinder/random_fd.h>
 #include <utils/String16.h>
 
+using android::binder::unique_fd;
+
 namespace android {
 
 static void fillRandomParcelData(Parcel* p, FuzzedDataProvider&& provider) {
@@ -72,7 +74,7 @@
                     }
 
                     if (options->extraFds.size() > 0 && provider.ConsumeBool()) {
-                        const base::unique_fd& fd = options->extraFds.at(
+                        const unique_fd& fd = options->extraFds.at(
                                 provider.ConsumeIntegralInRange<size_t>(0,
                                                                         options->extraFds.size() -
                                                                                 1));
@@ -83,7 +85,7 @@
                             return;
                         }
 
-                        std::vector<base::unique_fd> fds = getRandomFds(&provider);
+                        std::vector<unique_fd> fds = getRandomFds(&provider);
                         CHECK(OK ==
                               p->writeFileDescriptor(fds.begin()->release(),
                                                      true /*takeOwnership*/));
diff --git a/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp b/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp
index 9e3e2ab..7b3c806 100644
--- a/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp
+++ b/libs/binder/tests/parcel_fuzzer/random_parcel_seeds.cpp
@@ -14,14 +14,16 @@
  * limitations under the License.
  */
 
-#include <android-base/file.h>
 #include <android-base/logging.h>
 
 #include <binder/RecordedTransaction.h>
 
 #include <fuzzseeds/random_parcel_seeds.h>
 
-using android::base::WriteFully;
+#include "../../file.h"
+
+using android::binder::borrowed_fd;
+using android::binder::WriteFully;
 
 namespace android {
 namespace impl {
@@ -64,7 +66,7 @@
 
 } // namespace impl
 
-void generateSeedsFromRecording(base::borrowed_fd fd,
+void generateSeedsFromRecording(borrowed_fd fd,
                                 const binder::debug::RecordedTransaction& transaction) {
     // Write Reserved bytes for future use
     std::vector<uint8_t> reservedBytes(8);
diff --git a/libs/binder/tests/rpc_fuzzer/Android.bp b/libs/binder/tests/rpc_fuzzer/Android.bp
index 71e847f..ab72bfd 100644
--- a/libs/binder/tests/rpc_fuzzer/Android.bp
+++ b/libs/binder/tests/rpc_fuzzer/Android.bp
@@ -25,13 +25,14 @@
         "libbase",
         "libcutils",
         "liblog",
+        "libbinder_test_utils",
         "libbinder_tls_static",
         "libbinder_tls_test_utils",
         "libssl_fuzz_unsafe",
         "libcrypto_fuzz_unsafe",
     ],
     cflags: [
-        "-DBORINGSSL_UNSAFE_DETERMINISTIC_MODE" // for RAND_reset_for_fuzzing
+        "-DBORINGSSL_UNSAFE_DETERMINISTIC_MODE", // for RAND_reset_for_fuzzing
     ],
     target: {
         android: {
diff --git a/libs/binder/tests/rpc_fuzzer/main.cpp b/libs/binder/tests/rpc_fuzzer/main.cpp
index dcc8b8e..50fc2f2 100644
--- a/libs/binder/tests/rpc_fuzzer/main.cpp
+++ b/libs/binder/tests/rpc_fuzzer/main.cpp
@@ -14,9 +14,9 @@
  * limitations under the License.
  */
 
-#include <android-base/file.h>
+#include "../FileUtils.h"
+
 #include <android-base/logging.h>
-#include <android-base/unique_fd.h>
 #include <binder/Binder.h>
 #include <binder/Parcel.h>
 #include <binder/RpcServer.h>
@@ -24,13 +24,18 @@
 #include <binder/RpcTransport.h>
 #include <binder/RpcTransportRaw.h>
 #include <binder/RpcTransportTls.h>
+#include <binder/unique_fd.h>
 #include <fuzzer/FuzzedDataProvider.h>
 #include <openssl/rand.h>
 #include <openssl/ssl.h>
 
 #include <sys/resource.h>
+#include <sys/socket.h>
 #include <sys/un.h>
 
+using android::binder::GetExecutableDirectory;
+using android::binder::unique_fd;
+
 namespace android {
 
 static const std::string kSock = std::string(getenv("TMPDIR") ?: "/tmp") +
@@ -76,12 +81,12 @@
 ServerAuth readServerKeyAndCert() {
     ServerAuth ret;
 
-    auto keyPath = android::base::GetExecutableDirectory() + "/data/server.key";
+    auto keyPath = GetExecutableDirectory() + "/data/server.key";
     bssl::UniquePtr<BIO> keyBio(BIO_new_file(keyPath.c_str(), "r"));
     ret.pkey.reset(PEM_read_bio_PrivateKey(keyBio.get(), nullptr, passwordCallback, nullptr));
     CHECK_NE(ret.pkey.get(), nullptr);
 
-    auto certPath = android::base::GetExecutableDirectory() + "/data/server.crt";
+    auto certPath = GetExecutableDirectory() + "/data/server.crt";
     bssl::UniquePtr<BIO> certBio(BIO_new_file(certPath.c_str(), "r"));
     ret.cert.reset(PEM_read_bio_X509(certBio.get(), nullptr, nullptr, nullptr));
     CHECK_NE(ret.cert.get(), nullptr);
@@ -129,7 +134,7 @@
     CHECK_LT(kSock.size(), sizeof(addr.sun_path));
     memcpy(&addr.sun_path, kSock.c_str(), kSock.size());
 
-    std::vector<base::unique_fd> connections;
+    std::vector<unique_fd> connections;
 
     bool hangupBeforeShutdown = provider.ConsumeBool();
 
@@ -140,7 +145,7 @@
     while (provider.remaining_bytes() > 0) {
         if (connections.empty() ||
             (connections.size() < kMaxConnections && provider.ConsumeBool())) {
-            base::unique_fd fd(TEMP_FAILURE_RETRY(socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0)));
+            unique_fd fd(TEMP_FAILURE_RETRY(socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0)));
             CHECK_NE(fd.get(), -1);
             CHECK_EQ(0,
                      TEMP_FAILURE_RETRY(
diff --git a/libs/binder/tests/unit_fuzzers/BinderFuzzFunctions.h b/libs/binder/tests/unit_fuzzers/BinderFuzzFunctions.h
index 8d2b714..993418a 100644
--- a/libs/binder/tests/unit_fuzzers/BinderFuzzFunctions.h
+++ b/libs/binder/tests/unit_fuzzers/BinderFuzzFunctions.h
@@ -74,7 +74,7 @@
                                   bbinder->getDebugPid();
                               },
                               [](FuzzedDataProvider*, const sp<BBinder>& bbinder) -> void {
-                                  (void)bbinder->setRpcClientDebug(android::base::unique_fd(),
+                                  (void)bbinder->setRpcClientDebug(binder::unique_fd(),
                                                                    sp<BBinder>::make());
                               }};
 
diff --git a/libs/binder/tests/unit_fuzzers/RecordedTransactionFileFuzz.cpp b/libs/binder/tests/unit_fuzzers/RecordedTransactionFileFuzz.cpp
index 0706182..87b0fb6 100644
--- a/libs/binder/tests/unit_fuzzers/RecordedTransactionFileFuzz.cpp
+++ b/libs/binder/tests/unit_fuzzers/RecordedTransactionFileFuzz.cpp
@@ -19,13 +19,15 @@
 
 #include "fuzzer/FuzzedDataProvider.h"
 
+using android::binder::unique_fd;
+
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
     std::FILE* intermediateFile = std::tmpfile();
     fwrite(data, sizeof(uint8_t), size, intermediateFile);
     rewind(intermediateFile);
     int fileNumber = fileno(intermediateFile);
 
-    android::base::unique_fd fd(dup(fileNumber));
+    unique_fd fd(dup(fileNumber));
 
     auto transaction = android::binder::debug::RecordedTransaction::fromFile(fd);
 
@@ -34,7 +36,7 @@
     if (transaction.has_value()) {
         intermediateFile = std::tmpfile();
 
-        android::base::unique_fd fdForWriting(dup(fileno(intermediateFile)));
+        unique_fd fdForWriting(dup(fileno(intermediateFile)));
         auto writeStatus [[maybe_unused]] = transaction.value().dumpToFile(fdForWriting);
 
         std::fclose(intermediateFile);
diff --git a/libs/binder/tests/unit_fuzzers/RecordedTransactionFuzz.cpp b/libs/binder/tests/unit_fuzzers/RecordedTransactionFuzz.cpp
index 9289f6a..fa939e6 100644
--- a/libs/binder/tests/unit_fuzzers/RecordedTransactionFuzz.cpp
+++ b/libs/binder/tests/unit_fuzzers/RecordedTransactionFuzz.cpp
@@ -22,6 +22,7 @@
 #include "fuzzer/FuzzedDataProvider.h"
 
 using android::fillRandomParcel;
+using android::binder::unique_fd;
 
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
     FuzzedDataProvider provider = FuzzedDataProvider(data, size);
@@ -53,7 +54,7 @@
 
     if (transaction.has_value()) {
         std::FILE* intermediateFile = std::tmpfile();
-        android::base::unique_fd fdForWriting(dup(fileno(intermediateFile)));
+        unique_fd fdForWriting(dup(fileno(intermediateFile)));
         auto writeStatus [[maybe_unused]] = transaction.value().dumpToFile(fdForWriting);
 
         std::fclose(intermediateFile);
diff --git a/libs/binder/tests/unit_fuzzers/TextOutputFuzz.cpp b/libs/binder/tests/unit_fuzzers/TextOutputFuzz.cpp
index 5e3502a..fe09978 100644
--- a/libs/binder/tests/unit_fuzzers/TextOutputFuzz.cpp
+++ b/libs/binder/tests/unit_fuzzers/TextOutputFuzz.cpp
@@ -14,11 +14,12 @@
  * limitations under the License.
  */
 
+#include "../../file.h"
+
 #include <fuzzer/FuzzedDataProvider.h>
 
 #include <binder/Parcel.h>
 #include <binder/TextOutput.h>
-#include "android-base/file.h"
 #include "android-base/test_utils.h"
 
 #include <fcntl.h>
diff --git a/libs/binder/trusty/OS.cpp b/libs/binder/trusty/OS.cpp
index 0d18b0b..ca14286 100644
--- a/libs/binder/trusty/OS.cpp
+++ b/libs/binder/trusty/OS.cpp
@@ -26,9 +26,12 @@
 #include "../OS.h"
 #include "TrustyStatus.h"
 
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
+
 namespace android::binder::os {
 
-status_t setNonBlocking(android::base::borrowed_fd /*fd*/) {
+status_t setNonBlocking(borrowed_fd /*fd*/) {
     // Trusty IPC syscalls are all non-blocking by default.
     return OK;
 }
@@ -59,14 +62,14 @@
 
 ssize_t sendMessageOnSocket(
         const RpcTransportFd& /* socket */, iovec* /* iovs */, int /* niovs */,
-        const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /* ancillaryFds */) {
+        const std::vector<std::variant<unique_fd, borrowed_fd>>* /* ancillaryFds */) {
     errno = ENOTSUP;
     return -1;
 }
 
 ssize_t receiveMessageFromSocket(
         const RpcTransportFd& /* socket */, iovec* /* iovs */, int /* niovs */,
-        std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* /* ancillaryFds */) {
+        std::vector<std::variant<unique_fd, borrowed_fd>>* /* ancillaryFds */) {
     errno = ENOTSUP;
     return -1;
 }
diff --git a/libs/binder/trusty/RpcServerTrusty.cpp b/libs/binder/trusty/RpcServerTrusty.cpp
index 8f64323..0872b90 100644
--- a/libs/binder/trusty/RpcServerTrusty.cpp
+++ b/libs/binder/trusty/RpcServerTrusty.cpp
@@ -28,6 +28,7 @@
 #include "TrustyStatus.h"
 
 using android::base::unexpected;
+using android::binder::unique_fd;
 
 namespace android {
 
@@ -129,7 +130,7 @@
     if (chanDup < 0) {
         return chanDup;
     }
-    base::unique_fd clientFd(chanDup);
+    unique_fd clientFd(chanDup);
     android::RpcTransportFd transportFd(std::move(clientFd));
 
     std::array<uint8_t, RpcServer::kRpcAddressSize> addr;
diff --git a/libs/binder/trusty/RpcTransportTipcTrusty.cpp b/libs/binder/trusty/RpcTransportTipcTrusty.cpp
index 6bb45e2..c74ba0a 100644
--- a/libs/binder/trusty/RpcTransportTipcTrusty.cpp
+++ b/libs/binder/trusty/RpcTransportTipcTrusty.cpp
@@ -30,6 +30,8 @@
 namespace android {
 
 using namespace android::binder::impl;
+using android::binder::borrowed_fd;
+using android::binder::unique_fd;
 
 // RpcTransport for Trusty.
 class RpcTransportTipcTrusty : public RpcTransport {
@@ -48,8 +50,7 @@
     status_t interruptableWriteFully(
             FdTrigger* /*fdTrigger*/, iovec* iovs, int niovs,
             const std::optional<SmallFunction<status_t()>>& /*altPoll*/,
-            const std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds)
-            override {
+            const std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override {
         if (niovs < 0) {
             return BAD_VALUE;
         }
@@ -118,7 +119,7 @@
     status_t interruptableReadFully(
             FdTrigger* /*fdTrigger*/, iovec* iovs, int niovs,
             const std::optional<SmallFunction<status_t()>>& /*altPoll*/,
-            std::vector<std::variant<base::unique_fd, base::borrowed_fd>>* ancillaryFds) override {
+            std::vector<std::variant<unique_fd, borrowed_fd>>* ancillaryFds) override {
         if (niovs < 0) {
             return BAD_VALUE;
         }
@@ -170,7 +171,7 @@
                 if (ancillaryFds != nullptr) {
                     ancillaryFds->reserve(ancillaryFds->size() + mMessageInfo.num_handles);
                     for (size_t i = 0; i < mMessageInfo.num_handles; i++) {
-                        ancillaryFds->emplace_back(base::unique_fd(msgHandles[i]));
+                        ancillaryFds->emplace_back(unique_fd(msgHandles[i]));
                     }
 
                     // Clear the saved number of handles so we don't accidentally
diff --git a/libs/binder/trusty/include/binder/RpcServerTrusty.h b/libs/binder/trusty/include/binder/RpcServerTrusty.h
index aa476f9..7382a30 100644
--- a/libs/binder/trusty/include/binder/RpcServerTrusty.h
+++ b/libs/binder/trusty/include/binder/RpcServerTrusty.h
@@ -17,11 +17,11 @@
 #pragma once
 
 #include <android-base/expected.h>
-#include <android-base/unique_fd.h>
 #include <binder/IBinder.h>
 #include <binder/RpcServer.h>
 #include <binder/RpcSession.h>
 #include <binder/RpcTransport.h>
+#include <binder/unique_fd.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 
diff --git a/libs/binder/trusty/rules.mk b/libs/binder/trusty/rules.mk
index 9cad556..dbddbe1 100644
--- a/libs/binder/trusty/rules.mk
+++ b/libs/binder/trusty/rules.mk
@@ -43,6 +43,7 @@
 	$(LIBBINDER_DIR)/Stability.cpp \
 	$(LIBBINDER_DIR)/Status.cpp \
 	$(LIBBINDER_DIR)/Utils.cpp \
+	$(LIBBINDER_DIR)/file.cpp \
 	$(LIBBASE_DIR)/hex.cpp \
 	$(LIBBASE_DIR)/stringprintf.cpp \
 	$(LIBUTILS_DIR)/binder/Errors.cpp \
diff --git a/libs/input/InputTransport.cpp b/libs/input/InputTransport.cpp
index f6b4648..fd4d5f0 100644
--- a/libs/input/InputTransport.cpp
+++ b/libs/input/InputTransport.cpp
@@ -424,7 +424,7 @@
     msg->getSanitizedCopy(&cleanMsg);
     ssize_t nWrite;
     do {
-        nWrite = ::send(getFd(), &cleanMsg, msgLength, MSG_DONTWAIT | MSG_NOSIGNAL);
+        nWrite = ::send(getFd().get(), &cleanMsg, msgLength, MSG_DONTWAIT | MSG_NOSIGNAL);
     } while (nWrite == -1 && errno == EINTR);
 
     if (nWrite < 0) {
@@ -455,7 +455,7 @@
 status_t InputChannel::receiveMessage(InputMessage* msg) {
     ssize_t nRead;
     do {
-        nRead = ::recv(getFd(), msg, sizeof(InputMessage), MSG_DONTWAIT);
+        nRead = ::recv(getFd().get(), msg, sizeof(InputMessage), MSG_DONTWAIT);
     } while (nRead == -1 && errno == EINTR);
 
     if (nRead < 0) {
@@ -521,7 +521,7 @@
 }
 
 base::unique_fd InputChannel::dupFd() const {
-    android::base::unique_fd newFd(::dup(getFd()));
+    base::unique_fd newFd(::dup(getFd().get()));
     if (!newFd.ok()) {
         ALOGE("Could not duplicate fd %i for channel %s: %s", getFd().get(), getName().c_str(),
               strerror(errno));
diff --git a/libs/vibrator/fuzzer/Android.bp b/libs/vibrator/fuzzer/Android.bp
index f2a313c..cb063af 100644
--- a/libs/vibrator/fuzzer/Android.bp
+++ b/libs/vibrator/fuzzer/Android.bp
@@ -47,6 +47,17 @@
     ],
 
     fuzz_config: {
-        componentid: 155276,
+        cc: [
+            "android-haptics@google.com",
+        ],
+        componentid: 345036,
+        hotlists: [
+            "4593311",
+        ],
+        description: "The fuzzer targets the APIs of libvibrator",
+        vector: "local_no_privileges_required",
+        service_privilege: "privileged",
+        users: "multi_user",
+        fuzzed_code_usage: "shipped",
     },
 }
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 901c806..1cf2b5f 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -5837,7 +5837,7 @@
     { // acquire lock
         std::scoped_lock _l(mLock);
         const sp<IBinder>& token = serverChannel->getConnectionToken();
-        int fd = serverChannel->getFd();
+        auto&& fd = serverChannel->getFd();
         std::shared_ptr<Connection> connection =
                 std::make_shared<Connection>(std::move(serverChannel), /*monitor=*/false,
                                              mIdGenerator);
@@ -5850,7 +5850,7 @@
         std::function<int(int events)> callback = std::bind(&InputDispatcher::handleReceiveCallback,
                                                             this, std::placeholders::_1, token);
 
-        mLooper->addFd(fd, 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
+        mLooper->addFd(fd.get(), 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
                        nullptr);
     } // release lock
 
@@ -5880,7 +5880,7 @@
         std::shared_ptr<Connection> connection =
                 std::make_shared<Connection>(serverChannel, /*monitor=*/true, mIdGenerator);
         const sp<IBinder>& token = serverChannel->getConnectionToken();
-        const int fd = serverChannel->getFd();
+        auto&& fd = serverChannel->getFd();
 
         if (mConnectionsByToken.find(token) != mConnectionsByToken.end()) {
             ALOGE("Created a new connection, but the token %p is already known", token.get());
@@ -5891,7 +5891,7 @@
 
         mGlobalMonitorsByDisplay[displayId].emplace_back(serverChannel, pid);
 
-        mLooper->addFd(fd, 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
+        mLooper->addFd(fd.get(), 0, ALOOPER_EVENT_INPUT, sp<LooperEventCallback>::make(callback),
                        nullptr);
     }
 
@@ -5930,7 +5930,7 @@
         removeMonitorChannelLocked(connectionToken);
     }
 
-    mLooper->removeFd(connection->inputChannel->getFd());
+    mLooper->removeFd(connection->inputChannel->getFd().get());
 
     nsecs_t currentTime = now();
     abortBrokenDispatchCycleLocked(currentTime, connection, notify);
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/DisplayColorProfile.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/DisplayColorProfile.h
index df44e75..48f874e 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/DisplayColorProfile.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/DisplayColorProfile.h
@@ -36,7 +36,7 @@
 namespace compositionengine {
 
 /**
- * Encapsulates all the state and functionality for how colors should be
+ * Encapsulates all the states and functionality for how colors should be
  * transformed for a display
  */
 class DisplayColorProfile {
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/Output.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/Output.h
index a3d8639..77cd8e4 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/Output.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/Output.h
@@ -61,7 +61,7 @@
 } // namespace impl
 
 /**
- * Encapsulates all the state involved with composing layers for an output
+ * Encapsulates all the states involved with composing layers for an output
  */
 class Output {
 public:
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputLayerCompositionState.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputLayerCompositionState.h
index 7b0af3a..6c419da 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputLayerCompositionState.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputLayerCompositionState.h
@@ -90,7 +90,7 @@
     // The source crop for this layer on this output
     FloatRect sourceCrop;
 
-    // The buffer transform to use for this layer o on this output.
+    // The buffer transform to use for this layer on this output.
     Hwc2::Transform bufferTransform{static_cast<Hwc2::Transform>(0)};
 
     // The dataspace for this layer
diff --git a/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp b/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp
index 23bb54c..3d9979f 100644
--- a/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp
+++ b/services/surfaceflinger/FrontEnd/RequestedLayerState.cpp
@@ -95,7 +95,6 @@
     z = 0;
     layerStack = ui::DEFAULT_LAYER_STACK;
     transformToDisplayInverse = false;
-    dataspace = ui::Dataspace::UNKNOWN;
     desiredHdrSdrRatio = 1.f;
     currentHdrSdrRatio = 1.f;
     dataspaceRequested = false;
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 7ea547d..c1f9a37 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -4175,7 +4175,6 @@
         prepareBasicGeometryCompositionState();
         prepareGeometryCompositionState();
         snapshot->roundedCorner = getRoundedCornerState();
-        snapshot->stretchEffect = getStretchEffect();
         snapshot->transformedBounds = mScreenBounds;
         if (mEffectiveShadowRadius > 0.f) {
             snapshot->shadowSettings = mFlinger->mDrawingState.globalShadowSettings;
diff --git a/services/vibratorservice/Android.bp b/services/vibratorservice/Android.bp
index 5403baf..2002bdf 100644
--- a/services/vibratorservice/Android.bp
+++ b/services/vibratorservice/Android.bp
@@ -59,12 +59,6 @@
         "-Wunreachable-code",
     ],
 
-    // FIXME: Workaround LTO build breakage
-    // http://b/241699694
-    lto: {
-        never: true,
-    },
-
     local_include_dirs: ["include"],
 
     export_include_dirs: ["include"],