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authorElliott Hughes <enh@google.com>2016-03-29 19:55:46 +0200
committerGerrit Code Review <noreply-gerritcodereview@google.com>2016-03-29 19:55:47 +0200
commit5d73735552b3eca103830bd1433ce4b74b54b2b3 (patch)
tree054c7d6cfa4d17e42dd6f220d1b7930663943e50
parentMerge "Move recovery_l10n here from development/tools." (diff)
parentSwitch to <android-base/unique_fd.h>. (diff)
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-rw-r--r--bootloader.cpp10
-rw-r--r--uncrypt/uncrypt.cpp103
-rw-r--r--unique_fd.h62
-rw-r--r--updater/blockimg.cpp42
4 files changed, 74 insertions, 143 deletions
diff --git a/bootloader.cpp b/bootloader.cpp
index d80c5e793..a32f8b4c6 100644
--- a/bootloader.cpp
+++ b/bootloader.cpp
@@ -29,7 +29,7 @@
#include "common.h"
#include "mtdutils/mtdutils.h"
#include "roots.h"
-#include "unique_fd.h"
+#include <android-base/unique_fd.h>
static int get_bootloader_message_mtd(bootloader_message* out, const Volume* v);
static int set_bootloader_message_mtd(const bootloader_message* in, const Volume* v);
@@ -191,8 +191,8 @@ static int get_bootloader_message_block(bootloader_message* out,
static int set_bootloader_message_block(const bootloader_message* in,
const Volume* v) {
wait_for_device(v->blk_device);
- unique_fd fd(open(v->blk_device, O_WRONLY | O_SYNC));
- if (fd.get() == -1) {
+ android::base::unique_fd fd(open(v->blk_device, O_WRONLY | O_SYNC));
+ if (fd == -1) {
LOGE("failed to open \"%s\": %s\n", v->blk_device, strerror(errno));
return -1;
}
@@ -201,7 +201,7 @@ static int set_bootloader_message_block(const bootloader_message* in,
const uint8_t* start = reinterpret_cast<const uint8_t*>(in);
size_t total = sizeof(*in);
while (written < total) {
- ssize_t wrote = TEMP_FAILURE_RETRY(write(fd.get(), start + written, total - written));
+ ssize_t wrote = TEMP_FAILURE_RETRY(write(fd, start + written, total - written));
if (wrote == -1) {
LOGE("failed to write %" PRId64 " bytes: %s\n",
static_cast<off64_t>(written), strerror(errno));
@@ -210,7 +210,7 @@ static int set_bootloader_message_block(const bootloader_message* in,
written += wrote;
}
- if (fsync(fd.get()) == -1) {
+ if (fsync(fd) == -1) {
LOGE("failed to fsync \"%s\": %s\n", v->blk_device, strerror(errno));
return -1;
}
diff --git a/uncrypt/uncrypt.cpp b/uncrypt/uncrypt.cpp
index 705744eb6..abbd3e545 100644
--- a/uncrypt/uncrypt.cpp
+++ b/uncrypt/uncrypt.cpp
@@ -61,6 +61,7 @@
#include <android-base/logging.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
+#include <android-base/unique_fd.h>
#include <cutils/android_reboot.h>
#include <cutils/properties.h>
#include <fs_mgr.h>
@@ -69,7 +70,6 @@
#include <log/log.h>
#include "bootloader.h"
-#include "unique_fd.h"
#define WINDOW_SIZE 5
@@ -174,8 +174,9 @@ static int produce_block_map(const char* path, const char* map_file, const char*
return -1;
}
std::string tmp_map_file = std::string(map_file) + ".tmp";
- unique_fd mapfd(open(tmp_map_file.c_str(), O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR));
- if (!mapfd) {
+ android::base::unique_fd mapfd(open(tmp_map_file.c_str(),
+ O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR));
+ if (mapfd == -1) {
ALOGE("failed to open %s: %s\n", tmp_map_file.c_str(), strerror(errno));
return -1;
}
@@ -201,7 +202,7 @@ static int produce_block_map(const char* path, const char* map_file, const char*
std::string s = android::base::StringPrintf("%s\n%" PRId64 " %ld\n",
blk_dev, sb.st_size, static_cast<long>(sb.st_blksize));
- if (!android::base::WriteStringToFd(s, mapfd.get())) {
+ if (!android::base::WriteStringToFd(s, mapfd)) {
ALOGE("failed to write %s: %s", tmp_map_file.c_str(), strerror(errno));
return -1;
}
@@ -213,16 +214,16 @@ static int produce_block_map(const char* path, const char* map_file, const char*
int head_block = 0;
int head = 0, tail = 0;
- unique_fd fd(open(path, O_RDONLY));
- if (!fd) {
+ android::base::unique_fd fd(open(path, O_RDONLY));
+ if (fd == -1) {
ALOGE("failed to open %s for reading: %s", path, strerror(errno));
return -1;
}
- unique_fd wfd(-1);
+ android::base::unique_fd wfd;
if (encrypted) {
- wfd = open(blk_dev, O_WRONLY);
- if (!wfd) {
+ wfd.reset(open(blk_dev, O_WRONLY));
+ if (wfd == -1) {
ALOGE("failed to open fd for writing: %s", strerror(errno));
return -1;
}
@@ -241,14 +242,14 @@ static int produce_block_map(const char* path, const char* map_file, const char*
if ((tail+1) % WINDOW_SIZE == head) {
// write out head buffer
int block = head_block;
- if (ioctl(fd.get(), FIBMAP, &block) != 0) {
+ if (ioctl(fd, FIBMAP, &block) != 0) {
ALOGE("failed to find block %d", head_block);
return -1;
}
add_block_to_ranges(ranges, block);
if (encrypted) {
- if (write_at_offset(buffers[head].data(), sb.st_blksize, wfd.get(),
- static_cast<off64_t>(sb.st_blksize) * block) != 0) {
+ if (write_at_offset(buffers[head].data(), sb.st_blksize, wfd,
+ static_cast<off64_t>(sb.st_blksize) * block) != 0) {
return -1;
}
}
@@ -260,7 +261,7 @@ static int produce_block_map(const char* path, const char* map_file, const char*
if (encrypted) {
size_t to_read = static_cast<size_t>(
std::min(static_cast<off64_t>(sb.st_blksize), sb.st_size - pos));
- if (!android::base::ReadFully(fd.get(), buffers[tail].data(), to_read)) {
+ if (!android::base::ReadFully(fd, buffers[tail].data(), to_read)) {
ALOGE("failed to read: %s", strerror(errno));
return -1;
}
@@ -277,14 +278,14 @@ static int produce_block_map(const char* path, const char* map_file, const char*
while (head != tail) {
// write out head buffer
int block = head_block;
- if (ioctl(fd.get(), FIBMAP, &block) != 0) {
+ if (ioctl(fd, FIBMAP, &block) != 0) {
ALOGE("failed to find block %d", head_block);
return -1;
}
add_block_to_ranges(ranges, block);
if (encrypted) {
- if (write_at_offset(buffers[head].data(), sb.st_blksize, wfd.get(),
- static_cast<off64_t>(sb.st_blksize) * block) != 0) {
+ if (write_at_offset(buffers[head].data(), sb.st_blksize, wfd,
+ static_cast<off64_t>(sb.st_blksize) * block) != 0) {
return -1;
}
}
@@ -293,38 +294,36 @@ static int produce_block_map(const char* path, const char* map_file, const char*
}
if (!android::base::WriteStringToFd(
- android::base::StringPrintf("%zu\n", ranges.size() / 2), mapfd.get())) {
+ android::base::StringPrintf("%zu\n", ranges.size() / 2), mapfd)) {
ALOGE("failed to write %s: %s", tmp_map_file.c_str(), strerror(errno));
return -1;
}
for (size_t i = 0; i < ranges.size(); i += 2) {
if (!android::base::WriteStringToFd(
- android::base::StringPrintf("%d %d\n", ranges[i], ranges[i+1]), mapfd.get())) {
+ android::base::StringPrintf("%d %d\n", ranges[i], ranges[i+1]), mapfd)) {
ALOGE("failed to write %s: %s", tmp_map_file.c_str(), strerror(errno));
return -1;
}
}
- if (fsync(mapfd.get()) == -1) {
+ if (fsync(mapfd) == -1) {
ALOGE("failed to fsync \"%s\": %s", tmp_map_file.c_str(), strerror(errno));
return -1;
}
- if (close(mapfd.get() == -1)) {
+ if (close(mapfd.release()) == -1) {
ALOGE("failed to close %s: %s", tmp_map_file.c_str(), strerror(errno));
return -1;
}
- mapfd = -1;
if (encrypted) {
- if (fsync(wfd.get()) == -1) {
+ if (fsync(wfd) == -1) {
ALOGE("failed to fsync \"%s\": %s", blk_dev, strerror(errno));
return -1;
}
- if (close(wfd.get()) == -1) {
+ if (close(wfd.release()) == -1) {
ALOGE("failed to close %s: %s", blk_dev, strerror(errno));
return -1;
}
- wfd = -1;
}
if (rename(tmp_map_file.c_str(), map_file) == -1) {
@@ -334,20 +333,19 @@ static int produce_block_map(const char* path, const char* map_file, const char*
// Sync dir to make rename() result written to disk.
std::string file_name = map_file;
std::string dir_name = dirname(&file_name[0]);
- unique_fd dfd(open(dir_name.c_str(), O_RDONLY | O_DIRECTORY));
- if (!dfd) {
+ android::base::unique_fd dfd(open(dir_name.c_str(), O_RDONLY | O_DIRECTORY));
+ if (dfd == -1) {
ALOGE("failed to open dir %s: %s", dir_name.c_str(), strerror(errno));
return -1;
}
- if (fsync(dfd.get()) == -1) {
+ if (fsync(dfd) == -1) {
ALOGE("failed to fsync %s: %s", dir_name.c_str(), strerror(errno));
return -1;
}
- if (close(dfd.get() == -1)) {
+ if (close(dfd.release()) == -1) {
ALOGE("failed to close %s: %s", dir_name.c_str(), strerror(errno));
return -1;
}
- dfd = -1;
return 0;
}
@@ -371,12 +369,12 @@ static int read_bootloader_message(bootloader_message* out) {
ALOGE("failed to find /misc partition.");
return -1;
}
- unique_fd fd(open(misc_blk_device.c_str(), O_RDONLY));
- if (!fd) {
+ android::base::unique_fd fd(open(misc_blk_device.c_str(), O_RDONLY));
+ if (fd == -1) {
ALOGE("failed to open %s: %s", misc_blk_device.c_str(), strerror(errno));
return -1;
}
- if (!android::base::ReadFully(fd.get(), out, sizeof(*out))) {
+ if (!android::base::ReadFully(fd, out, sizeof(*out))) {
ALOGE("failed to read %s: %s", misc_blk_device.c_str(), strerror(errno));
return -1;
}
@@ -389,17 +387,17 @@ static int write_bootloader_message(const bootloader_message* in) {
ALOGE("failed to find /misc partition.");
return -1;
}
- unique_fd fd(open(misc_blk_device.c_str(), O_WRONLY | O_SYNC));
- if (!fd) {
+ android::base::unique_fd fd(open(misc_blk_device.c_str(), O_WRONLY | O_SYNC));
+ if (fd == -1) {
ALOGE("failed to open %s: %s", misc_blk_device.c_str(), strerror(errno));
return -1;
}
- if (!android::base::WriteFully(fd.get(), in, sizeof(*in))) {
+ if (!android::base::WriteFully(fd, in, sizeof(*in))) {
ALOGE("failed to write %s: %s", misc_blk_device.c_str(), strerror(errno));
return -1;
}
// TODO: O_SYNC and fsync() duplicates each other?
- if (fsync(fd.get()) == -1) {
+ if (fsync(fd) == -1) {
ALOGE("failed to fsync %s: %s", misc_blk_device.c_str(), strerror(errno));
return -1;
}
@@ -465,8 +463,9 @@ static int uncrypt(const char* input_path, const char* map_file, int status_fd)
static int uncrypt_wrapper(const char* input_path, const char* map_file,
const std::string& status_file) {
// The pipe has been created by the system server.
- unique_fd status_fd(open(status_file.c_str(), O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR));
- if (!status_fd) {
+ android::base::unique_fd status_fd(open(status_file.c_str(),
+ O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR));
+ if (status_fd == -1) {
ALOGE("failed to open pipe \"%s\": %s", status_file.c_str(), strerror(errno));
return 1;
}
@@ -474,46 +473,48 @@ static int uncrypt_wrapper(const char* input_path, const char* map_file,
std::string package;
if (input_path == nullptr) {
if (!find_uncrypt_package(UNCRYPT_PATH_FILE, &package)) {
- android::base::WriteStringToFd("-1\n", status_fd.get());
+ android::base::WriteStringToFd("-1\n", status_fd);
return 1;
}
input_path = package.c_str();
}
CHECK(map_file != nullptr);
- int status = uncrypt(input_path, map_file, status_fd.get());
+ int status = uncrypt(input_path, map_file, status_fd);
if (status != 0) {
- android::base::WriteStringToFd("-1\n", status_fd.get());
+ android::base::WriteStringToFd("-1\n", status_fd);
return 1;
}
- android::base::WriteStringToFd("100\n", status_fd.get());
+ android::base::WriteStringToFd("100\n", status_fd);
return 0;
}
static int clear_bcb(const std::string& status_file) {
- unique_fd status_fd(open(status_file.c_str(), O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR));
- if (!status_fd) {
+ android::base::unique_fd status_fd(open(status_file.c_str(),
+ O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR));
+ if (status_fd == -1) {
ALOGE("failed to open pipe \"%s\": %s", status_file.c_str(), strerror(errno));
return 1;
}
bootloader_message boot = {};
if (write_bootloader_message(&boot) != 0) {
- android::base::WriteStringToFd("-1\n", status_fd.get());
+ android::base::WriteStringToFd("-1\n", status_fd);
return 1;
}
- android::base::WriteStringToFd("100\n", status_fd.get());
+ android::base::WriteStringToFd("100\n", status_fd);
return 0;
}
static int setup_bcb(const std::string& command_file, const std::string& status_file) {
- unique_fd status_fd(open(status_file.c_str(), O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR));
- if (!status_fd) {
+ android::base::unique_fd status_fd(open(status_file.c_str(),
+ O_WRONLY | O_CREAT | O_SYNC, S_IRUSR | S_IWUSR));
+ if (status_fd == -1) {
ALOGE("failed to open pipe \"%s\": %s", status_file.c_str(), strerror(errno));
return 1;
}
std::string content;
if (!android::base::ReadFileToString(command_file, &content)) {
ALOGE("failed to read \"%s\": %s", command_file.c_str(), strerror(errno));
- android::base::WriteStringToFd("-1\n", status_fd.get());
+ android::base::WriteStringToFd("-1\n", status_fd);
return 1;
}
bootloader_message boot = {};
@@ -522,10 +523,10 @@ static int setup_bcb(const std::string& command_file, const std::string& status_
strlcat(boot.recovery, content.c_str(), sizeof(boot.recovery));
if (write_bootloader_message(&boot) != 0) {
ALOGE("failed to set bootloader message");
- android::base::WriteStringToFd("-1\n", status_fd.get());
+ android::base::WriteStringToFd("-1\n", status_fd);
return 1;
}
- android::base::WriteStringToFd("100\n", status_fd.get());
+ android::base::WriteStringToFd("100\n", status_fd);
return 0;
}
diff --git a/unique_fd.h b/unique_fd.h
deleted file mode 100644
index cc85383f8..000000000
--- a/unique_fd.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef UNIQUE_FD_H
-#define UNIQUE_FD_H
-
-#include <stdio.h>
-
-#include <memory>
-
-class unique_fd {
- public:
- unique_fd(int fd) : fd_(fd) { }
-
- unique_fd(unique_fd&& uf) {
- fd_ = uf.fd_;
- uf.fd_ = -1;
- }
-
- ~unique_fd() {
- if (fd_ != -1) {
- close(fd_);
- }
- }
-
- int get() {
- return fd_;
- }
-
- // Movable.
- unique_fd& operator=(unique_fd&& uf) {
- fd_ = uf.fd_;
- uf.fd_ = -1;
- return *this;
- }
-
- explicit operator bool() const {
- return fd_ != -1;
- }
-
- private:
- int fd_;
-
- // Non-copyable.
- unique_fd(const unique_fd&) = delete;
- unique_fd& operator=(const unique_fd&) = delete;
-};
-
-#endif // UNIQUE_FD_H
diff --git a/updater/blockimg.cpp b/updater/blockimg.cpp
index 9d329cd24..908e11631 100644
--- a/updater/blockimg.cpp
+++ b/updater/blockimg.cpp
@@ -40,6 +40,7 @@
#include <android-base/parseint.h>
#include <android-base/strings.h>
+#include <android-base/unique_fd.h>
#include "applypatch/applypatch.h"
#include "edify/expr.h"
@@ -48,7 +49,6 @@
#include "minzip/Hash.h"
#include "ota_io.h"
#include "print_sha1.h"
-#include "unique_fd.h"
#include "updater.h"
#define BLOCKSIZE 4096
@@ -368,7 +368,7 @@ struct CommandParameters {
std::string stashbase;
bool canwrite;
int createdstash;
- int fd;
+ android::base::unique_fd fd;
bool foundwrites;
bool isunresumable;
int version;
@@ -577,9 +577,7 @@ static int LoadStash(CommandParameters& params, const std::string& base, const s
return -1;
}
- int fd = TEMP_FAILURE_RETRY(ota_open(fn.c_str(), O_RDONLY));
- unique_fd fd_holder(fd);
-
+ android::base::unique_fd fd(TEMP_FAILURE_RETRY(ota_open(fn.c_str(), O_RDONLY)));
if (fd == -1) {
fprintf(stderr, "open \"%s\" failed: %s\n", fn.c_str(), strerror(errno));
return -1;
@@ -634,9 +632,9 @@ static int WriteStash(const std::string& base, const std::string& id, int blocks
fprintf(stderr, " writing %d blocks to %s\n", blocks, cn.c_str());
- int fd = TEMP_FAILURE_RETRY(ota_open(fn.c_str(), O_WRONLY | O_CREAT | O_TRUNC, STASH_FILE_MODE));
- unique_fd fd_holder(fd);
-
+ android::base::unique_fd fd(TEMP_FAILURE_RETRY(ota_open(fn.c_str(),
+ O_WRONLY | O_CREAT | O_TRUNC,
+ STASH_FILE_MODE)));
if (fd == -1) {
fprintf(stderr, "failed to create \"%s\": %s\n", fn.c_str(), strerror(errno));
return -1;
@@ -658,9 +656,8 @@ static int WriteStash(const std::string& base, const std::string& id, int blocks
}
std::string dname = GetStashFileName(base, "", "");
- int dfd = TEMP_FAILURE_RETRY(ota_open(dname.c_str(), O_RDONLY | O_DIRECTORY));
- unique_fd dfd_holder(dfd);
-
+ android::base::unique_fd dfd(TEMP_FAILURE_RETRY(ota_open(dname.c_str(),
+ O_RDONLY | O_DIRECTORY)));
if (dfd == -1) {
fprintf(stderr, "failed to open \"%s\" failed: %s\n", dname.c_str(), strerror(errno));
return -1;
@@ -942,8 +939,8 @@ static int LoadSrcTgtVersion3(CommandParameters& params, RangeSet& tgt, size_t&
tgthash = params.tokens[params.cpos++];
}
- if (LoadSrcTgtVersion2(params, tgt, src_blocks, params.buffer, params.fd, params.stashbase,
- &overlap) == -1) {
+ if (LoadSrcTgtVersion2(params, tgt, src_blocks, params.buffer, params.fd,
+ params.stashbase, &overlap) == -1) {
return -1;
}
@@ -1385,9 +1382,7 @@ static Value* PerformBlockImageUpdate(const char* name, State* state, int /* arg
return StringValue(strdup(""));
}
- params.fd = TEMP_FAILURE_RETRY(ota_open(blockdev_filename->data, O_RDWR));
- unique_fd fd_holder(params.fd);
-
+ params.fd.reset(TEMP_FAILURE_RETRY(ota_open(blockdev_filename->data, O_RDWR)));
if (params.fd == -1) {
fprintf(stderr, "open \"%s\" failed: %s\n", blockdev_filename->data, strerror(errno));
return StringValue(strdup(""));
@@ -1532,7 +1527,7 @@ pbiudone:
if (ota_fsync(params.fd) == -1) {
fprintf(stderr, "fsync failed: %s\n", strerror(errno));
}
- // params.fd will be automatically closed because of the fd_holder above.
+ // params.fd will be automatically closed because it's a unique_fd.
// Only delete the stash if the update cannot be resumed, or it's
// a verification run and we created the stash.
@@ -1653,9 +1648,8 @@ Value* RangeSha1Fn(const char* name, State* state, int /* argc */, Expr* argv[])
return StringValue(strdup(""));
}
- int fd = ota_open(blockdev_filename->data, O_RDWR);
- unique_fd fd_holder(fd);
- if (fd < 0) {
+ android::base::unique_fd fd(ota_open(blockdev_filename->data, O_RDWR));
+ if (fd == -1) {
ErrorAbort(state, "open \"%s\" failed: %s", blockdev_filename->data, strerror(errno));
return StringValue(strdup(""));
}
@@ -1676,7 +1670,7 @@ Value* RangeSha1Fn(const char* name, State* state, int /* argc */, Expr* argv[])
for (size_t j = rs.pos[i*2]; j < rs.pos[i*2+1]; ++j) {
if (read_all(fd, buffer, BLOCKSIZE) == -1) {
ErrorAbort(state, "failed to read %s: %s", blockdev_filename->data,
- strerror(errno));
+ strerror(errno));
return StringValue(strdup(""));
}
@@ -1707,8 +1701,7 @@ Value* CheckFirstBlockFn(const char* name, State* state, int argc, Expr* argv[])
return StringValue(strdup(""));
}
- int fd = ota_open(arg_filename->data, O_RDONLY);
- unique_fd fd_holder(fd);
+ android::base::unique_fd fd(ota_open(arg_filename->data, O_RDONLY));
if (fd == -1) {
ErrorAbort(state, "open \"%s\" failed: %s", arg_filename->data, strerror(errno));
return StringValue(strdup(""));
@@ -1718,8 +1711,7 @@ Value* CheckFirstBlockFn(const char* name, State* state, int argc, Expr* argv[])
std::vector<uint8_t> block0_buffer(BLOCKSIZE);
if (ReadBlocks(blk0, block0_buffer, fd) == -1) {
- ErrorAbort(state, "failed to read %s: %s", arg_filename->data,
- strerror(errno));
+ ErrorAbort(state, "failed to read %s: %s", arg_filename->data, strerror(errno));
return StringValue(strdup(""));
}