diff options
Diffstat (limited to '')
| -rw-r--r-- | recovery_utils/roots.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/recovery_utils/roots.cpp b/recovery_utils/roots.cpp index 0b82c1ccd..d761e7525 100644 --- a/recovery_utils/roots.cpp +++ b/recovery_utils/roots.cpp @@ -34,6 +34,7 @@ #include <android-base/stringprintf.h> #include <android-base/unique_fd.h> #include <ext4_utils/ext4_utils.h> +#include <ext4_utils/wipe.h> #include <fs_mgr.h> #include <fs_mgr/roots.h> @@ -176,6 +177,25 @@ int format_volume(const std::string& volume, const std::string& directory) { } } + // If the raw disk will be used as a metadata encrypted device mapper target, + // next boot will do encrypt_in_place the raw disk which gives a subtle duration + // to get any failure in the process. In order to avoid it, let's simply wipe + // the raw disk if we don't reserve any space, which behaves exactly same as booting + // after "fastboot -w". + if (!v->metadata_encryption.empty() && length == 0) { + android::base::unique_fd fd(open(v->blk_device.c_str(), O_RDWR)); + if (fd == -1) { + PLOG(ERROR) << "format_volume: failed to open " << v->blk_device; + return -1; + } + int64_t device_size = get_file_size(fd.get(), 0); + if (device_size > 0 && !wipe_block_device(fd.get(), device_size)) { + LOG(INFO) << "format_volume: wipe metadata encrypted " << v->blk_device << " with size " + << device_size; + return 0; + } + } + if (v->fs_type == "ext4") { static constexpr int kBlockSize = 4096; std::vector<std::string> mke2fs_args = { |