Merge "linkToDeath on BiometricPrompt#authenticate" into rvc-dev am: e6fe6013cb (7fc7685b) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/biometrics/AuthenticationClient.java

+2 −5

Original line number	Diff line number	Diff line
		@@ -84,11 +84,8 @@ public abstract class AuthenticationClient extends ClientMonitor {

		@Override
		public void binderDied() {
		super.binderDied();
		// When the binder dies, we should stop the client. This probably belongs in
		// ClientMonitor's binderDied(), but testing all the cases would be tricky.
		// AuthenticationClient is the most user-visible case.
		stop(false /* initiatedByClient */);
		final boolean clearListener = !isBiometricPrompt();
		binderDiedInternal(clearListener);
		}

		@Override

services/core/java/com/android/server/biometrics/BiometricService.java

+61 −3

Original line number	Diff line number	Diff line
		@@ -113,6 +113,7 @@ public class BiometricService extends SystemService {
		private static final int MSG_ON_AUTHENTICATION_TIMED_OUT = 11;
		private static final int MSG_ON_DEVICE_CREDENTIAL_PRESSED = 12;
		private static final int MSG_ON_SYSTEM_EVENT = 13;
		private static final int MSG_CLIENT_DIED = 14;

		/**
		* Authentication either just called and we have not transitioned to the CALLED state, or
		@@ -151,8 +152,13 @@ public class BiometricService extends SystemService {
		* Device credential in AuthController is showing
		*/
		static final int STATE_SHOWING_DEVICE_CREDENTIAL = 8;
		/**
		* The client binder died, and sensors were authenticating at the time. Cancel has been
		* requested and we're waiting for the HAL(s) to send ERROR_CANCELED.
		*/
		static final int STATE_CLIENT_DIED_CANCELLING = 9;

		final class AuthSession {
		final class AuthSession implements IBinder.DeathRecipient {
		// Map of Authenticator/Cookie pairs. We expect to receive the cookies back from
		// <Biometric>Services before we can start authenticating. Pairs that have been returned
		// are moved to mModalitiesMatched.
		@@ -211,7 +217,14 @@ public class BiometricService extends SystemService {
		mCallingUserId = callingUserId;
		mModality = modality;
		mRequireConfirmation = requireConfirmation;

		Slog.d(TAG, "New AuthSession, mSysUiSessionId: " + mSysUiSessionId);

		try {
		mClientReceiver.asBinder().linkToDeath(this, 0 /* flags */);
		} catch (RemoteException e) {
		Slog.w(TAG, "Unable to link to death");
		}
		}

		boolean isCrypto() {
		@@ -231,6 +244,12 @@ public class BiometricService extends SystemService {
		boolean isAllowDeviceCredential() {
		return Utils.isCredentialRequested(mBundle);
		}

		@Override
		public void binderDied() {
		Slog.e(TAG, "Binder died, sysUiSessionId: " + mSysUiSessionId);
		mHandler.obtainMessage(MSG_CLIENT_DIED).sendToTarget();
		}
		}

		private final Injector mInjector;
		@@ -370,6 +389,11 @@ public class BiometricService extends SystemService {
		break;
		}

		case MSG_CLIENT_DIED: {
		handleClientDied();
		break;
		}

		default:
		Slog.e(TAG, "Unknown message: " + msg);
		break;
		@@ -1391,6 +1415,7 @@ public class BiometricService extends SystemService {
		}

		private void handleOnError(int cookie, int modality, int error, int vendorCode) {

		Slog.d(TAG, "handleOnError: " + error + " cookie: " + cookie);
		// Errors can either be from the current auth session or the pending auth session.
		// The pending auth session may receive errors such as ERROR_LOCKOUT before
		@@ -1431,6 +1456,9 @@ public class BiometricService extends SystemService {
		} else if (mCurrentAuthSession.mState == STATE_SHOWING_DEVICE_CREDENTIAL) {
		Slog.d(TAG, "Biometric canceled, ignoring from state: "
		+ mCurrentAuthSession.mState);
		} else if (mCurrentAuthSession.mState == STATE_CLIENT_DIED_CANCELLING) {
		mStatusBarService.hideAuthenticationDialog();
		mCurrentAuthSession = null;
		} else {
		Slog.e(TAG, "Impossible session error state: "
		+ mCurrentAuthSession.mState);
		@@ -1622,6 +1650,36 @@ public class BiometricService extends SystemService {
		}
		}

		private void handleClientDied() {
		if (mCurrentAuthSession == null) {
		Slog.e(TAG, "Auth session null");
		return;
		}

		Slog.e(TAG, "SysUiSessionId: " + mCurrentAuthSession.mSysUiSessionId
		+ " State: " + mCurrentAuthSession.mState);

		try {
		// Check if any sensors are authenticating. If so, need to cancel them. When
		// ERROR_CANCELED is received from the HAL, we hide the dialog and cleanup the session.
		if (mCurrentAuthSession.mState == STATE_AUTH_STARTED) {
		mCurrentAuthSession.mState = STATE_CLIENT_DIED_CANCELLING;
		cancelInternal(mCurrentAuthSession.mToken,
		mCurrentAuthSession.mOpPackageName,
		mCurrentAuthSession.mCallingUid,
		mCurrentAuthSession.mCallingPid,
		mCurrentAuthSession.mCallingUserId,
		false /* fromClient */);
		} else {
		// If the sensors are not authenticating, set the auth session to null.
		mStatusBarService.hideAuthenticationDialog();
		mCurrentAuthSession = null;
		}
		} catch (RemoteException e) {
		Slog.e(TAG, "Remote exception: " + e);
		}
		}

		/**
		* Invoked when each service has notified that its client is ready to be started. When
		* all biometrics are ready, this invokes the SystemUI dialog through StatusBar.
		@@ -1822,11 +1880,11 @@ public class BiometricService extends SystemService {

		void cancelInternal(IBinder token, String opPackageName, int callingUid, int callingPid,
		int callingUserId, boolean fromClient) {

		if (mCurrentAuthSession == null) {
		Slog.w(TAG, "Skipping cancelInternal");
		return;
		} else if (mCurrentAuthSession.mState != STATE_AUTH_STARTED) {
		} else if (mCurrentAuthSession.mState != STATE_AUTH_STARTED
		&& mCurrentAuthSession.mState != STATE_CLIENT_DIED_CANCELLING) {
		Slog.w(TAG, "Skipping cancelInternal, state: " + mCurrentAuthSession.mState);
		return;
		}

services/core/java/com/android/server/biometrics/ClientMonitor.java

+7 −1

Original line number	Diff line number	Diff line
		@@ -233,12 +233,18 @@ public abstract class ClientMonitor extends LoggableMonitor implements IBinder.D

		@Override
		public void binderDied() {
		binderDiedInternal(true /* clearListener */);
		}

		void binderDiedInternal(boolean clearListener) {
		// If the current client dies we should cancel the current operation.
		Slog.e(getLogTag(), "Binder died, cancelling client");
		stop(false /* initiatedByClient */);
		mToken = null;
		if (clearListener) {
		mListener = null;
		}
		}

		@Override
		protected void finalize() throws Throwable {

services/tests/servicestests/src/com/android/server/biometrics/BiometricServiceTest.java

+79 −6

Original line number	Diff line number	Diff line
		@@ -115,6 +115,8 @@ public class BiometricServiceTest {
		public void setUp() {
		MockitoAnnotations.initMocks(this);

		resetReceivers();

		when(mContext.getContentResolver()).thenReturn(mContentResolver);
		when(mContext.getResources()).thenReturn(mResources);
		when(mContext.getSystemService(Context.DEVICE_POLICY_SERVICE))
		@@ -146,6 +148,74 @@ public class BiometricServiceTest {
		when(mInjector.getConfiguration(any())).thenReturn(config);
		}

		@Test
		public void testClientBinderDied_whenPaused() throws Exception {
		setupAuthForOnly(BiometricAuthenticator.TYPE_FACE, Authenticators.BIOMETRIC_STRONG);

		invokeAuthenticateAndStart(mBiometricService.mImpl, mReceiver1,
		true /* requireConfirmation /, null / authenticators */);
		waitForIdle();
		verify(mReceiver1.asBinder()).linkToDeath(eq(mBiometricService.mCurrentAuthSession),
		anyInt());

		mBiometricService.mInternalReceiver.onError(
		getCookieForCurrentSession(mBiometricService.mCurrentAuthSession),
		BiometricAuthenticator.TYPE_FACE,
		BiometricConstants.BIOMETRIC_ERROR_TIMEOUT,
		0 /* vendorCode */);
		waitForIdle();

		assertEquals(BiometricService.STATE_AUTH_PAUSED,
		mBiometricService.mCurrentAuthSession.mState);

		mBiometricService.mCurrentAuthSession.binderDied();
		waitForIdle();

		assertNull(mBiometricService.mCurrentAuthSession);
		verify(mBiometricService.mStatusBarService).hideAuthenticationDialog();
		verify(mReceiver1, never()).onError(anyInt(), anyInt(), anyInt());
		}

		@Test
		public void testClientBinderDied_whenAuthenticating() throws Exception {
		setupAuthForOnly(BiometricAuthenticator.TYPE_FACE, Authenticators.BIOMETRIC_STRONG);

		invokeAuthenticateAndStart(mBiometricService.mImpl, mReceiver1,
		true /* requireConfirmation /, null / authenticators */);
		waitForIdle();
		verify(mReceiver1.asBinder()).linkToDeath(eq(mBiometricService.mCurrentAuthSession),
		anyInt());

		assertEquals(BiometricService.STATE_AUTH_STARTED,
		mBiometricService.mCurrentAuthSession.mState);
		mBiometricService.mCurrentAuthSession.binderDied();
		waitForIdle();

		assertNotNull(mBiometricService.mCurrentAuthSession);
		verify(mBiometricService.mStatusBarService, never()).hideAuthenticationDialog();
		assertEquals(BiometricService.STATE_CLIENT_DIED_CANCELLING,
		mBiometricService.mCurrentAuthSession.mState);

		verify(mBiometricService.mAuthenticators.get(0).impl).cancelAuthenticationFromService(
		any(),
		any(),
		anyInt(),
		anyInt(),
		anyInt(),
		eq(false) /* fromClient */);

		// Simulate ERROR_CANCELED received from HAL
		mBiometricService.mInternalReceiver.onError(
		getCookieForCurrentSession(mBiometricService.mCurrentAuthSession),
		BiometricAuthenticator.TYPE_FACE,
		BiometricConstants.BIOMETRIC_ERROR_CANCELED,
		0 /* vendorCode */);
		waitForIdle();
		verify(mBiometricService.mStatusBarService).hideAuthenticationDialog();
		verify(mReceiver1, never()).onError(anyInt(), anyInt(), anyInt());
		assertNull(mBiometricService.mCurrentAuthSession);
		}

		@Test
		public void testAuthenticate_credentialAllowedButNotSetup_returnsNoDeviceCredential()
		throws Exception {
		@@ -311,7 +381,7 @@ public class BiometricServiceTest {
		eq(0 /* vendorCode */));

		// Enrolled, not disabled in settings, user requires confirmation in settings
		resetReceiver();
		resetReceivers();
		when(mBiometricService.mSettingObserver.getFaceEnabledForApps(anyInt())).thenReturn(true);
		when(mBiometricService.mSettingObserver.getFaceAlwaysRequireConfirmation(anyInt()))
		.thenReturn(true);
		@@ -332,7 +402,7 @@ public class BiometricServiceTest {
		anyInt() /* callingUserId */);

		// Enrolled, not disabled in settings, user doesn't require confirmation in settings
		resetReceiver();
		resetReceivers();
		when(mBiometricService.mSettingObserver.getFaceAlwaysRequireConfirmation(anyInt()))
		.thenReturn(false);
		invokeAuthenticate(mBiometricService.mImpl, mReceiver1, false /* requireConfirmation */,
		@@ -1198,7 +1268,7 @@ public class BiometricServiceTest {
		eq(0) /* vendorCode */);

		// Request for weak auth works
		resetReceiver();
		resetReceivers();
		authenticators = Authenticators.BIOMETRIC_WEAK;
		assertEquals(BiometricManager.BIOMETRIC_SUCCESS,
		invokeCanAuthenticate(mBiometricService, authenticators));
		@@ -1217,7 +1287,7 @@ public class BiometricServiceTest {
		anyInt() /* sysUiSessionId */);

		// Requesting strong and credential, when credential is setup
		resetReceiver();
		resetReceivers();
		authenticators = Authenticators.BIOMETRIC_STRONG \| Authenticators.DEVICE_CREDENTIAL;
		when(mTrustManager.isDeviceSecure(anyInt())).thenReturn(true);
		assertEquals(BiometricManager.BIOMETRIC_SUCCESS,
		@@ -1244,7 +1314,7 @@ public class BiometricServiceTest {
		}
		}

		resetReceiver();
		resetReceivers();
		authenticators = Authenticators.BIOMETRIC_STRONG;
		assertEquals(BiometricManager.BIOMETRIC_SUCCESS,
		invokeCanAuthenticate(mBiometricService, authenticators));
		@@ -1449,9 +1519,12 @@ public class BiometricServiceTest {
		}
		}

		private void resetReceiver() {
		private void resetReceivers() {
		mReceiver1 = mock(IBiometricServiceReceiver.class);
		mReceiver2 = mock(IBiometricServiceReceiver.class);

		when(mReceiver1.asBinder()).thenReturn(mock(Binder.class));
		when(mReceiver2.asBinder()).thenReturn(mock(Binder.class));
		}

		private void resetStatusBar() {