Consistent dump() permission checking.
This change introduces new methods on DumpUtils that can check if the
caller has DUMP and/or PACKAGE_USAGE_STATS access. It then moves all
existing dump() methods to use these checks so that we emit
consistent error messages.
Test: cts-tradefed run commandAndExit cts-dev -m CtsSecurityTestCases -t android.security.cts.ServicePermissionsTest
Bug: 32806790
Change-Id: Iaff6b9506818ee082b1e169c89ebe1001b3bfeca
diff --git a/services/core/java/com/android/server/BatteryService.java b/services/core/java/com/android/server/BatteryService.java
index fd44794..83bd9eb 100644
--- a/services/core/java/com/android/server/BatteryService.java
+++ b/services/core/java/com/android/server/BatteryService.java
@@ -24,6 +24,7 @@
import android.os.ShellCallback;
import android.os.ShellCommand;
import com.android.internal.app.IBatteryStats;
+import com.android.internal.util.DumpUtils;
import com.android.server.am.BatteryStatsService;
import com.android.server.lights.Light;
import com.android.server.lights.LightsManager;
@@ -945,14 +946,7 @@
private final class BinderService extends Binder {
@Override protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
- if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
- != PackageManager.PERMISSION_GRANTED) {
-
- pw.println("Permission Denial: can't dump Battery service from from pid="
- + Binder.getCallingPid()
- + ", uid=" + Binder.getCallingUid());
- return;
- }
+ if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return;
if (args.length > 0 && "--proto".equals(args[0])) {
dumpProto(fd);