Merge "Prepare user storage when a private volume has been mounted." into... (3d6c65c3) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/StorageManagerService.java

+36 −0

Original line number	Diff line number	Diff line
		@@ -1579,6 +1579,14 @@ class StorageManagerService extends IStorageManager.Stub
		writeSettingsLocked();
		}
		}

		if (newState == VolumeInfo.STATE_MOUNTED) {
		// Private volumes can be unmounted and re-mounted even after a user has
		// been unlocked; on devices that support encryption keys tied to the filesystem,
		// this requires setting up the keys again.
		prepareUserStorageIfNeeded(vol);
		}

		// This is a blocking call to Storage Service which needs to process volume state changed
		// before notifying other listeners.
		// Intentionally called without the mLock to avoid deadlocking from the Storage Service.
		@@ -3266,10 +3274,38 @@ class StorageManagerService extends IStorageManager.Stub
		}
		}

		private void prepareUserStorageIfNeeded(VolumeInfo vol) {
		if (vol.type != VolumeInfo.TYPE_PRIVATE) {
		return;
		}

		final UserManager um = mContext.getSystemService(UserManager.class);
		final UserManagerInternal umInternal =
		LocalServices.getService(UserManagerInternal.class);

		for (UserInfo user : um.getUsers(false /* includeDying */)) {
		final int flags;
		if (umInternal.isUserUnlockingOrUnlocked(user.id)) {
		flags = StorageManager.FLAG_STORAGE_DE \| StorageManager.FLAG_STORAGE_CE;
		} else if (umInternal.isUserRunning(user.id)) {
		flags = StorageManager.FLAG_STORAGE_DE;
		} else {
		continue;
		}

		prepareUserStorageInternal(vol.fsUuid, user.id, user.serialNumber, flags);
		}
		}

		@Override
		public void prepareUserStorage(String volumeUuid, int userId, int serialNumber, int flags) {
		enforcePermission(android.Manifest.permission.STORAGE_INTERNAL);

		prepareUserStorageInternal(volumeUuid, userId, serialNumber, flags);
		}

		private void prepareUserStorageInternal(String volumeUuid, int userId, int serialNumber,
		int flags) {
		try {
		mVold.prepareUserStorage(volumeUuid, userId, serialNumber, flags);
		// After preparing user storage, we should check if we should mount data mirror again,