Merge "Wait for current task to complete before revoking challenge" into qt-r1-dev (78914abd) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/biometrics/face/FaceService.java

+26 −2

Original line number	Diff line number	Diff line
		@@ -63,6 +63,7 @@ import com.android.server.SystemServerInitThreadPool;
		import com.android.server.biometrics.AuthenticationClient;
		import com.android.server.biometrics.BiometricServiceBase;
		import com.android.server.biometrics.BiometricUtils;
		import com.android.server.biometrics.ClientMonitor;
		import com.android.server.biometrics.Constants;
		import com.android.server.biometrics.EnumerateClient;
		import com.android.server.biometrics.RemovalClient;
		@@ -342,7 +343,16 @@ public class FaceService extends BiometricServiceBase {
		@Override // Binder call
		public int revokeChallenge(IBinder token) {
		checkPermission(MANAGE_BIOMETRIC);
		// TODO(b/137106905): Schedule binder calls in FaceService to avoid deadlocks.
		if (getCurrentClient() == null) {
		// if we aren't handling any other HIDL calls (mCurrentClient == null), revoke the
		// challenge right away.
		return startRevokeChallenge(token);
		} else {
		// postpone revoking the challenge until we finish processing the current HIDL call.
		mRevokeChallengePending = true;
		return Status.OK;
		}
		}

		@Override // Binder call
		@@ -812,6 +822,7 @@ public class FaceService extends BiometricServiceBase {
		@GuardedBy("this")
		private IBiometricsFace mDaemon;
		private UsageStats mUsageStats;
		private boolean mRevokeChallengePending = false;
		// One of the AuthenticationClient constants
		private int mCurrentUserLockoutMode;

		@@ -1040,6 +1051,15 @@ public class FaceService extends BiometricServiceBase {
		.getIntArray(R.array.config_face_acquire_vendor_enroll_ignorelist);
		}

		@Override
		protected void removeClient(ClientMonitor client) {
		super.removeClient(client);
		if (mRevokeChallengePending) {
		startRevokeChallenge(null);
		mRevokeChallengePending = false;
		}
		}

		@Override
		public void onStart() {
		super.onStart();
		@@ -1251,7 +1271,11 @@ public class FaceService extends BiometricServiceBase {
		return 0;
		}
		try {
		return daemon.revokeChallenge();
		final int res = daemon.revokeChallenge();
		if (res != Status.OK) {
		Slog.e(TAG, "revokeChallenge returned " + res);
		}
		return res;
		} catch (RemoteException e) {
		Slog.e(TAG, "startRevokeChallenge failed", e);
		}