installd: Add destroyAppDataSnapshot and corresponding binder API
- destroyAppDataSnapshot: deletes both ce and de snapshots (controlled
via storageFlags), for ce snapshot fallbacks to deleting it by it's
inode in case snapshot is not accessible (user hasn't unlocked the
phone yet).
- snapshotAppData: in case ce snapshot was requested, it will now return
inode if a folder with the snapshot. Otherwise it will return 0.
Passing ceSnapshotInode to destroyAppDataSnapshot should make logic
inside RollbackManagerService a bit easier. Since it will be able to
delete ce snapshot regardless of user unlocking their phone.
Bug: 112431924
Test: installd_service_test installd_utils_test
Change-Id: I015de12593b87f3000f004cc0a901a9208d0b693
diff --git a/cmds/installd/binder/android/os/IInstalld.aidl b/cmds/installd/binder/android/os/IInstalld.aidl
index 3d093b8..b345210 100644
--- a/cmds/installd/binder/android/os/IInstalld.aidl
+++ b/cmds/installd/binder/android/os/IInstalld.aidl
@@ -105,14 +105,12 @@
int userId, int appId, @utf8InCpp String profileName, @utf8InCpp String codePath,
@nullable @utf8InCpp String dexMetadata);
- void snapshotAppData(@nullable @utf8InCpp String uuid, in @utf8InCpp String packageName,
+ long snapshotAppData(@nullable @utf8InCpp String uuid, in @utf8InCpp String packageName,
int userId, int storageFlags);
void restoreAppDataSnapshot(@nullable @utf8InCpp String uuid, in @utf8InCpp String packageName,
int appId, long ceDataInode, @utf8InCpp String seInfo, int user, int storageflags);
-
- // TODO(narayan) we need an API to delete the app data snapshot as well.
- // void destroyAppDataSnapshot(@nullable @utf8InCpp String uuid,
- // in @utf8InCpp String packageName, int userId, int storageFlags);
+ void destroyAppDataSnapshot(@nullable @utf8InCpp String uuid, @utf8InCpp String packageName,
+ int userId, long ceSnapshotInode, int storageFlags);
const int FLAG_STORAGE_DE = 0x1;
const int FLAG_STORAGE_CE = 0x2;