diff options
| -rw-r--r-- | include/libgsi/libgsi.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/libgsi/libgsi.h b/include/libgsi/libgsi.h index ed47767..9a571f9 100644 --- a/include/libgsi/libgsi.h +++ b/include/libgsi/libgsi.h @@ -19,6 +19,7 @@ #include <string> #include <android-base/file.h> +#include <android-base/strings.h> namespace android { namespace gsi { @@ -35,6 +36,8 @@ static constexpr char kDsuActiveFile[] = DSU_METADATA_PREFIX "active"; static constexpr char kDsuAvbKeyDir[] = DSU_METADATA_PREFIX "avb/"; +static constexpr char kDsuMetadataKeyDirPrefix[] = "/metadata/vold/metadata_encryption/dsu/"; + static inline std::string DsuLpMetadataFile(const std::string& dsu_slot) { return DSU_METADATA_PREFIX + dsu_slot + "/lp_metadata"; } @@ -43,6 +46,24 @@ static inline std::string DsuInstallDirFile(const std::string& dsu_slot) { return DSU_METADATA_PREFIX + dsu_slot + "/install_dir"; } +static inline std::string DsuMetadataKeyDirFile(const std::string& dsu_slot) { + return DSU_METADATA_PREFIX + dsu_slot + "/metadata_encryption_dir"; +} + +static inline std::string DefaultDsuMetadataKeyDir(const std::string& dsu_slot) { + return kDsuMetadataKeyDirPrefix + dsu_slot; +} + +static inline std::string GetDsuMetadataKeyDir(const std::string& dsu_slot) { + auto key_dir_file = DsuMetadataKeyDirFile(dsu_slot); + std::string key_dir; + if (android::base::ReadFileToString(key_dir_file, &key_dir) && + android::base::StartsWith(key_dir, kDsuMetadataKeyDirPrefix)) { + return key_dir; + } + return DefaultDsuMetadataKeyDir(dsu_slot); +} + // install_dir "/data/gsi/dsu/dsu" has a slot name "dsu" // install_dir "/data/gsi/dsu/dsu2" has a slot name "dsu2" std::string GetDsuSlot(const std::string& install_dir); |