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authorYabin Cui <yabinc@google.com>2016-06-21 20:00:44 +0200
committerYabin Cui <yabinc@google.com>2016-06-21 20:09:38 +0200
commitbf049bffe2ea70e788e5c54ca307839232eb2f5d (patch)
treefc7c54a8c23f5849d29d11ffa09c3e641997dc02 /uncrypt/bootloader_message_writer.cpp
parentMerge \\"Import translations. DO NOT MERGE\\" into stage-aosp-master am: 2c709ccef9 -s ours (diff)
parentMerge "Verify wipe package when wiping A/B device in recovery." into nyc-mr1-dev (diff)
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Diffstat (limited to 'uncrypt/bootloader_message_writer.cpp')
-rw-r--r--uncrypt/bootloader_message_writer.cpp20
1 files changed, 18 insertions, 2 deletions
diff --git a/uncrypt/bootloader_message_writer.cpp b/uncrypt/bootloader_message_writer.cpp
index 3bb106aa0..42df31efa 100644
--- a/uncrypt/bootloader_message_writer.cpp
+++ b/uncrypt/bootloader_message_writer.cpp
@@ -58,7 +58,7 @@ static std::string get_misc_blk_device(std::string* err) {
return record->blk_device;
}
-static bool write_bootloader_message(const bootloader_message& boot, std::string* err) {
+static bool write_misc_partition(const void* p, size_t size, size_t misc_offset, std::string* err) {
std::string misc_blk_device = get_misc_blk_device(err);
if (misc_blk_device.empty()) {
return false;
@@ -69,11 +69,18 @@ static bool write_bootloader_message(const bootloader_message& boot, std::string
strerror(errno));
return false;
}
- if (!android::base::WriteFully(fd.get(), &boot, sizeof(boot))) {
+ if (lseek(fd.get(), static_cast<off_t>(misc_offset), SEEK_SET) !=
+ static_cast<off_t>(misc_offset)) {
+ *err = android::base::StringPrintf("failed to lseek %s: %s", misc_blk_device.c_str(),
+ strerror(errno));
+ return false;
+ }
+ if (!android::base::WriteFully(fd.get(), p, size)) {
*err = android::base::StringPrintf("failed to write %s: %s", misc_blk_device.c_str(),
strerror(errno));
return false;
}
+
// TODO: O_SYNC and fsync duplicates each other?
if (fsync(fd.get()) == -1) {
*err = android::base::StringPrintf("failed to fsync %s: %s", misc_blk_device.c_str(),
@@ -83,6 +90,10 @@ static bool write_bootloader_message(const bootloader_message& boot, std::string
return true;
}
+static bool write_bootloader_message(const bootloader_message& boot, std::string* err) {
+ return write_misc_partition(&boot, sizeof(boot), BOOTLOADER_MESSAGE_OFFSET_IN_MISC, err);
+}
+
bool clear_bootloader_message(std::string* err) {
bootloader_message boot = {};
return write_bootloader_message(boot, err);
@@ -101,6 +112,11 @@ bool write_bootloader_message(const std::vector<std::string>& options, std::stri
return write_bootloader_message(boot, err);
}
+bool write_wipe_package(const std::string& package_data, std::string* err) {
+ return write_misc_partition(package_data.data(), package_data.size(),
+ WIPE_PACKAGE_OFFSET_IN_MISC, err);
+}
+
extern "C" bool write_bootloader_message(const char* options) {
std::string err;
return write_bootloader_message({options}, &err);