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/CommonTimeManagementService.java b/services/core/java/com/android/server/CommonTimeManagementService.java
index 60b366a..07c8679 100644
--- a/services/core/java/com/android/server/CommonTimeManagementService.java
+++ b/services/core/java/com/android/server/CommonTimeManagementService.java
@@ -37,6 +37,7 @@
import android.os.SystemProperties;
import android.util.Log;
+import com.android.internal.util.DumpUtils;
import com.android.server.net.BaseNetworkObserver;
/**
@@ -177,13 +178,7 @@
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
- if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
- != PackageManager.PERMISSION_GRANTED) {
- pw.println(String.format(
- "Permission Denial: can't dump CommonTimeManagement service from from " +
- "pid=%d, uid=%d", Binder.getCallingPid(), Binder.getCallingUid()));
- return;
- }
+ if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return;
if (!mDetectedAtStartup) {
pw.println("Native Common Time service was not detected at startup. " +