diff options
author | Elliott Hughes <enh@google.com> | 2016-03-29 19:55:46 +0200 |
---|---|---|
committer | Gerrit Code Review <noreply-gerritcodereview@google.com> | 2016-03-29 19:55:47 +0200 |
commit | 5d73735552b3eca103830bd1433ce4b74b54b2b3 (patch) | |
tree | 054c7d6cfa4d17e42dd6f220d1b7930663943e50 /uncrypt | |
parent | Merge "Move recovery_l10n here from development/tools." (diff) | |
parent | Switch to <android-base/unique_fd.h>. (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | uncrypt/uncrypt.cpp | 103 |
1 files changed, 52 insertions, 51 deletions
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; } |