Check DUMP permission in the backup service trampoline

Make sure that even if backup is disabled outright (and hence there
is no underlying service implementation for the trampoline to delegate
to), the DUMP permission exception is thrown as expected.

Bug 19422232

Change-Id: I6d1a17c5f85adcfad75af969b521920e786c05a8

parent a1879609

services/backup/java/com/android/server/backup/Trampoline.java

+2 −0

Original line number	Diff line number	Diff line
		@@ -318,6 +318,8 @@ public class Trampoline extends IBackupManager.Stub {

		@Override
		public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
		mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DUMP, TAG);

		BackupManagerService svc = mService;
		if (svc != null) {
		svc.dump(fd, pw, args);