| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.biometrics.face; |
| |
| import static android.Manifest.permission.INTERACT_ACROSS_USERS; |
| import static android.Manifest.permission.MANAGE_BIOMETRIC; |
| import static android.Manifest.permission.RESET_FACE_LOCKOUT; |
| import static android.Manifest.permission.USE_BIOMETRIC_INTERNAL; |
| import static android.hardware.biometrics.BiometricAuthenticator.TYPE_FACE; |
| |
| import android.app.ActivityManager; |
| import android.app.AppOpsManager; |
| import android.app.Notification; |
| import android.app.NotificationChannel; |
| import android.app.NotificationManager; |
| import android.app.PendingIntent; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.UserInfo; |
| import android.hardware.biometrics.BiometricAuthenticator; |
| import android.hardware.biometrics.BiometricConstants; |
| import android.hardware.biometrics.BiometricsProtoEnums; |
| import android.hardware.biometrics.IBiometricServiceLockoutResetCallback; |
| import android.hardware.biometrics.IBiometricServiceReceiverInternal; |
| import android.hardware.biometrics.face.V1_0.IBiometricsFace; |
| import android.hardware.biometrics.face.V1_0.IBiometricsFaceClientCallback; |
| import android.hardware.biometrics.face.V1_0.OptionalBool; |
| import android.hardware.biometrics.face.V1_0.Status; |
| import android.hardware.face.Face; |
| import android.hardware.face.FaceManager; |
| import android.hardware.face.IFaceService; |
| import android.hardware.face.IFaceServiceReceiver; |
| import android.os.Binder; |
| import android.os.Build; |
| import android.os.Environment; |
| import android.os.IBinder; |
| import android.os.NativeHandle; |
| import android.os.RemoteException; |
| import android.os.SELinux; |
| import android.os.SystemProperties; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.provider.Settings; |
| import android.util.Slog; |
| |
| import com.android.internal.R; |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.internal.util.DumpUtils; |
| 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; |
| |
| import org.json.JSONArray; |
| import org.json.JSONException; |
| import org.json.JSONObject; |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * A service to manage multiple clients that want to access the face HAL API. |
| * The service is responsible for maintaining a list of clients and dispatching all |
| * face-related events. |
| * |
| * @hide |
| */ |
| public class FaceService extends BiometricServiceBase { |
| |
| protected static final String TAG = "FaceService"; |
| private static final boolean DEBUG = true; |
| private static final String FACE_DATA_DIR = "facedata"; |
| private static final String ACTION_LOCKOUT_RESET = |
| "com.android.server.biometrics.face.ACTION_LOCKOUT_RESET"; |
| private static final int CHALLENGE_TIMEOUT_SEC = 600; // 10 minutes |
| |
| private static final String NOTIFICATION_TAG = "FaceService"; |
| private static final int NOTIFICATION_ID = 1; |
| |
| private static final String SKIP_KEYGUARD_ACQUIRE_IGNORE_LIST = |
| "com.android.server.biometrics.face.skip_keyguard_acquire_ignore_list"; |
| |
| /** |
| * Events for bugreports. |
| */ |
| public static final class AuthenticationEvent { |
| private long mStartTime; |
| private long mLatency; |
| // Only valid if mError is 0 |
| private boolean mAuthenticated; |
| private int mError; |
| // Only valid if mError is ERROR_VENDOR |
| private int mVendorError; |
| private int mUser; |
| |
| AuthenticationEvent(long startTime, long latency, boolean authenticated, int error, |
| int vendorError, int user) { |
| mStartTime = startTime; |
| mLatency = latency; |
| mAuthenticated = authenticated; |
| mError = error; |
| mVendorError = vendorError; |
| mUser = user; |
| } |
| |
| public String toString(Context context) { |
| return "Start: " + mStartTime |
| + "\tLatency: " + mLatency |
| + "\tAuthenticated: " + mAuthenticated |
| + "\tError: " + mError |
| + "\tVendorCode: " + mVendorError |
| + "\tUser: " + mUser |
| + "\t" + FaceManager.getErrorString(context, mError, mVendorError); |
| } |
| } |
| |
| /** |
| * Keep a short historical buffer of stats, with an aggregated usage time. |
| */ |
| private class UsageStats { |
| static final int EVENT_LOG_SIZE = 100; |
| |
| Context mContext; |
| List<AuthenticationEvent> mAuthenticationEvents; |
| |
| int acceptCount; |
| int rejectCount; |
| Map<Integer, Integer> mErrorCount; |
| |
| long acceptLatency; |
| long rejectLatency; |
| Map<Integer, Long> mErrorLatency; |
| |
| UsageStats(Context context) { |
| mAuthenticationEvents = new ArrayList<>(); |
| mErrorCount = new HashMap<>(); |
| mErrorLatency = new HashMap<>(); |
| mContext = context; |
| } |
| |
| void addEvent(AuthenticationEvent event) { |
| if (mAuthenticationEvents.size() >= EVENT_LOG_SIZE) { |
| mAuthenticationEvents.remove(0); |
| } |
| mAuthenticationEvents.add(event); |
| |
| if (event.mAuthenticated) { |
| acceptCount++; |
| acceptLatency += event.mLatency; |
| } else if (event.mError == 0) { |
| rejectCount++; |
| rejectLatency += event.mLatency; |
| } else { |
| mErrorCount.put(event.mError, mErrorCount.getOrDefault(event.mError, 0) + 1); |
| mErrorLatency.put(event.mError, |
| mErrorLatency.getOrDefault(event.mError, 0l) + event.mLatency); |
| } |
| } |
| |
| void print(PrintWriter pw) { |
| pw.println("Events since last reboot: " + mAuthenticationEvents.size()); |
| for (int i = 0; i < mAuthenticationEvents.size(); i++) { |
| pw.println(mAuthenticationEvents.get(i).toString(mContext)); |
| } |
| |
| // Dump aggregated usage stats |
| // TODO: Remove or combine with json dump in a future release |
| pw.println("Accept\tCount: " + acceptCount + "\tLatency: " + acceptLatency |
| + "\tAverage: " + (acceptCount > 0 ? acceptLatency / acceptCount : 0)); |
| pw.println("Reject\tCount: " + rejectCount + "\tLatency: " + rejectLatency |
| + "\tAverage: " + (rejectCount > 0 ? rejectLatency / rejectCount : 0)); |
| |
| for (Integer key : mErrorCount.keySet()) { |
| final int count = mErrorCount.get(key); |
| pw.println("Error" + key + "\tCount: " + count |
| + "\tLatency: " + mErrorLatency.getOrDefault(key, 0l) |
| + "\tAverage: " + (count > 0 ? mErrorLatency.getOrDefault(key, 0l) / count |
| : 0) |
| + "\t" + FaceManager.getErrorString(mContext, key, 0 /* vendorCode */)); |
| } |
| } |
| } |
| |
| private final class FaceAuthClient extends AuthenticationClientImpl { |
| private int mLastAcquire; |
| |
| public FaceAuthClient(Context context, |
| DaemonWrapper daemon, long halDeviceId, IBinder token, |
| ServiceListener listener, int targetUserId, int groupId, long opId, |
| boolean restricted, String owner, int cookie, boolean requireConfirmation) { |
| super(context, daemon, halDeviceId, token, listener, targetUserId, groupId, opId, |
| restricted, owner, cookie, requireConfirmation); |
| } |
| |
| @Override |
| protected int statsModality() { |
| return FaceService.this.statsModality(); |
| } |
| |
| @Override |
| public boolean shouldFrameworkHandleLockout() { |
| return false; |
| } |
| |
| @Override |
| public boolean wasUserDetected() { |
| return mLastAcquire != FaceManager.FACE_ACQUIRED_NOT_DETECTED |
| && mLastAcquire != FaceManager.FACE_ACQUIRED_SENSOR_DIRTY; |
| } |
| |
| @Override |
| public boolean isStrongBiometric() { |
| return FaceService.this.isStrongBiometric(); |
| } |
| |
| @Override |
| public boolean onAuthenticated(BiometricAuthenticator.Identifier identifier, |
| boolean authenticated, ArrayList<Byte> token) { |
| final boolean result = super.onAuthenticated(identifier, authenticated, token); |
| |
| mUsageStats.addEvent(new AuthenticationEvent( |
| getStartTimeMs(), |
| System.currentTimeMillis() - getStartTimeMs() /* latency */, |
| authenticated, |
| 0 /* error */, |
| 0 /* vendorError */, |
| getTargetUserId())); |
| |
| // For face, the authentication lifecycle ends either when |
| // 1) Authenticated == true |
| // 2) Error occurred |
| // 3) Authenticated == false |
| // Fingerprint currently does not end when the third condition is met which is a bug, |
| // but let's leave it as-is for now. |
| return result || !authenticated; |
| } |
| |
| @Override |
| public boolean onError(long deviceId, int error, int vendorCode) { |
| mUsageStats.addEvent(new AuthenticationEvent( |
| getStartTimeMs(), |
| System.currentTimeMillis() - getStartTimeMs() /* latency */, |
| false /* authenticated */, |
| error, |
| vendorCode, |
| getTargetUserId())); |
| |
| return super.onError(deviceId, error, vendorCode); |
| } |
| |
| @Override |
| public int[] getAcquireIgnorelist() { |
| if (isBiometricPrompt()) { |
| return mBiometricPromptIgnoreList; |
| } else { |
| // Keyguard |
| return mKeyguardIgnoreList; |
| } |
| } |
| |
| @Override |
| public int[] getAcquireVendorIgnorelist() { |
| if (isBiometricPrompt()) { |
| return mBiometricPromptIgnoreListVendor; |
| } else { |
| // Keyguard |
| return mKeyguardIgnoreListVendor; |
| } |
| } |
| |
| @Override |
| public boolean onAcquired(int acquireInfo, int vendorCode) { |
| |
| mLastAcquire = acquireInfo; |
| |
| if (acquireInfo == FaceManager.FACE_ACQUIRED_RECALIBRATE) { |
| final String name = |
| getContext().getString(R.string.face_recalibrate_notification_name); |
| final String title = |
| getContext().getString(R.string.face_recalibrate_notification_title); |
| final String content = |
| getContext().getString(R.string.face_recalibrate_notification_content); |
| |
| final Intent intent = new Intent("android.settings.FACE_SETTINGS"); |
| intent.setPackage("com.android.settings"); |
| |
| final PendingIntent pendingIntent = PendingIntent.getActivityAsUser(getContext(), |
| 0 /* requestCode */, intent, 0 /* flags */, null /* options */, |
| UserHandle.CURRENT); |
| |
| final String channelName = "FaceEnrollNotificationChannel"; |
| |
| NotificationChannel channel = new NotificationChannel(channelName, name, |
| NotificationManager.IMPORTANCE_HIGH); |
| Notification notification = new Notification.Builder(getContext(), channelName) |
| .setSmallIcon(R.drawable.ic_lock) |
| .setContentTitle(title) |
| .setContentText(content) |
| .setSubText(name) |
| .setOnlyAlertOnce(true) |
| .setLocalOnly(true) |
| .setAutoCancel(true) |
| .setCategory(Notification.CATEGORY_SYSTEM) |
| .setContentIntent(pendingIntent) |
| .setVisibility(Notification.VISIBILITY_SECRET) |
| .build(); |
| |
| mNotificationManager.createNotificationChannel(channel); |
| mNotificationManager.notifyAsUser(NOTIFICATION_TAG, NOTIFICATION_ID, notification, |
| UserHandle.CURRENT); |
| } |
| |
| return super.onAcquired(acquireInfo, vendorCode); |
| } |
| } |
| |
| /** |
| * Receives the incoming binder calls from FaceManager. |
| */ |
| private final class FaceServiceWrapper extends IFaceService.Stub { |
| private static final int ENROLL_TIMEOUT_SEC = 75; |
| |
| /** |
| * The following methods contain common code which is shared in biometrics/common. |
| */ |
| |
| @Override // Binder call |
| public long generateChallenge(IBinder token) { |
| checkPermission(MANAGE_BIOMETRIC); |
| return startGenerateChallenge(token); |
| } |
| |
| @Override // Binder call |
| public int revokeChallenge(IBinder token) { |
| checkPermission(MANAGE_BIOMETRIC); |
| mHandler.post(() -> { |
| // 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. |
| startRevokeChallenge(token); |
| } else { |
| // postpone revoking the challenge until we finish processing the current HIDL |
| // call. |
| mRevokeChallengePending = true; |
| } |
| }); |
| return Status.OK; |
| } |
| |
| @Override // Binder call |
| public void enroll(int userId, final IBinder token, final byte[] cryptoToken, |
| final IFaceServiceReceiver receiver, final String opPackageName, |
| final int[] disabledFeatures) { |
| checkPermission(MANAGE_BIOMETRIC); |
| updateActiveGroup(userId, opPackageName); |
| |
| mHandler.post(() -> { |
| mNotificationManager.cancelAsUser(NOTIFICATION_TAG, NOTIFICATION_ID, |
| UserHandle.CURRENT); |
| }); |
| |
| final boolean restricted = isRestricted(); |
| final EnrollClientImpl client = new EnrollClientImpl(getContext(), mDaemonWrapper, |
| mHalDeviceId, token, new ServiceListenerImpl(receiver), mCurrentUserId, |
| 0 /* groupId */, cryptoToken, restricted, opPackageName, disabledFeatures, |
| ENROLL_TIMEOUT_SEC) { |
| |
| @Override |
| public int[] getAcquireIgnorelist() { |
| return mEnrollIgnoreList; |
| } |
| |
| @Override |
| public int[] getAcquireVendorIgnorelist() { |
| return mEnrollIgnoreListVendor; |
| } |
| |
| @Override |
| public boolean shouldVibrate() { |
| return false; |
| } |
| |
| @Override |
| protected int statsModality() { |
| return FaceService.this.statsModality(); |
| } |
| }; |
| |
| enrollInternal(client, mCurrentUserId); |
| } |
| |
| @Override // Binder call |
| public void cancelEnrollment(final IBinder token) { |
| checkPermission(MANAGE_BIOMETRIC); |
| cancelEnrollmentInternal(token); |
| } |
| |
| @Override // Binder call |
| public void authenticate(final IBinder token, final long opId, int userId, |
| final IFaceServiceReceiver receiver, final int flags, |
| final String opPackageName) { |
| checkPermission(USE_BIOMETRIC_INTERNAL); |
| updateActiveGroup(userId, opPackageName); |
| final boolean restricted = isRestricted(); |
| final AuthenticationClientImpl client = new FaceAuthClient(getContext(), |
| mDaemonWrapper, mHalDeviceId, token, new ServiceListenerImpl(receiver), |
| mCurrentUserId, 0 /* groupId */, opId, restricted, opPackageName, |
| 0 /* cookie */, false /* requireConfirmation */); |
| authenticateInternal(client, opId, opPackageName); |
| } |
| |
| @Override // Binder call |
| public void prepareForAuthentication(boolean requireConfirmation, IBinder token, long opId, |
| int groupId, IBiometricServiceReceiverInternal wrapperReceiver, |
| String opPackageName, int cookie, int callingUid, int callingPid, |
| int callingUserId) { |
| checkPermission(USE_BIOMETRIC_INTERNAL); |
| updateActiveGroup(groupId, opPackageName); |
| final boolean restricted = true; // BiometricPrompt is always restricted |
| final AuthenticationClientImpl client = new FaceAuthClient(getContext(), |
| mDaemonWrapper, mHalDeviceId, token, |
| new BiometricPromptServiceListenerImpl(wrapperReceiver), |
| mCurrentUserId, 0 /* groupId */, opId, restricted, opPackageName, cookie, |
| requireConfirmation); |
| authenticateInternal(client, opId, opPackageName, callingUid, callingPid, |
| callingUserId); |
| } |
| |
| @Override // Binder call |
| public void startPreparedClient(int cookie) { |
| checkPermission(MANAGE_BIOMETRIC); |
| startCurrentClient(cookie); |
| } |
| |
| @Override // Binder call |
| public void cancelAuthentication(final IBinder token, final String opPackageName) { |
| checkPermission(USE_BIOMETRIC_INTERNAL); |
| cancelAuthenticationInternal(token, opPackageName); |
| } |
| |
| @Override // Binder call |
| public void cancelAuthenticationFromService(final IBinder token, final String opPackageName, |
| int callingUid, int callingPid, int callingUserId, boolean fromClient) { |
| checkPermission(USE_BIOMETRIC_INTERNAL); |
| cancelAuthenticationInternal(token, opPackageName, callingUid, callingPid, |
| callingUserId, fromClient); |
| } |
| |
| @Override // Binder call |
| public void setActiveUser(final int userId) { |
| checkPermission(MANAGE_BIOMETRIC); |
| setActiveUserInternal(userId); |
| } |
| |
| @Override // Binder call |
| public void remove(final IBinder token, final int faceId, final int userId, |
| final IFaceServiceReceiver receiver, final String opPackageName) { |
| checkPermission(MANAGE_BIOMETRIC); |
| updateActiveGroup(userId, opPackageName); |
| |
| if (token == null) { |
| Slog.w(TAG, "remove(): token is null"); |
| return; |
| } |
| |
| final boolean restricted = isRestricted(); |
| final RemovalClient client = new RemovalClient(getContext(), getConstants(), |
| mDaemonWrapper, mHalDeviceId, token, new ServiceListenerImpl(receiver), faceId, |
| 0 /* groupId */, userId, restricted, token.toString(), getBiometricUtils()) { |
| @Override |
| protected int statsModality() { |
| return FaceService.this.statsModality(); |
| } |
| }; |
| removeInternal(client); |
| } |
| |
| @Override |
| public void enumerate(final IBinder token, final int userId, |
| final IFaceServiceReceiver receiver) { |
| checkPermission(MANAGE_BIOMETRIC); |
| |
| final boolean restricted = isRestricted(); |
| final EnumerateClient client = new EnumerateClient(getContext(), getConstants(), |
| mDaemonWrapper, mHalDeviceId, token, new ServiceListenerImpl(receiver), userId, |
| userId, restricted, getContext().getOpPackageName()) { |
| @Override |
| protected int statsModality() { |
| return FaceService.this.statsModality(); |
| } |
| }; |
| enumerateInternal(client); |
| } |
| |
| @Override |
| public void addLockoutResetCallback(final IBiometricServiceLockoutResetCallback callback) |
| throws RemoteException { |
| checkPermission(USE_BIOMETRIC_INTERNAL); |
| FaceService.super.addLockoutResetCallback(callback); |
| } |
| |
| @Override // Binder call |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (!DumpUtils.checkDumpPermission(getContext(), TAG, pw)) { |
| return; |
| } |
| |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| if (args.length > 1 && "--hal".equals(args[0])) { |
| dumpHal(fd, Arrays.copyOfRange(args, 1, args.length, args.getClass())); |
| } else { |
| dumpInternal(pw); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| /** |
| * The following methods don't use any common code from BiometricService |
| */ |
| |
| // TODO: refactor out common code here |
| @Override // Binder call |
| public boolean isHardwareDetected(String opPackageName) { |
| checkPermission(USE_BIOMETRIC_INTERNAL); |
| if (!canUseBiometric(opPackageName, false /* foregroundOnly */, |
| Binder.getCallingUid(), Binder.getCallingPid(), |
| UserHandle.getCallingUserId())) { |
| return false; |
| } |
| |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| IBiometricsFace daemon = getFaceDaemon(); |
| return daemon != null && mHalDeviceId != 0; |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override // Binder call |
| public void rename(final int faceId, final String name) { |
| checkPermission(MANAGE_BIOMETRIC); |
| if (!isCurrentUserOrProfile(UserHandle.getCallingUserId())) { |
| return; |
| } |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| getBiometricUtils().renameBiometricForUser(getContext(), mCurrentUserId, |
| faceId, name); |
| } |
| }); |
| } |
| |
| @Override // Binder call |
| public List<Face> getEnrolledFaces(int userId, String opPackageName) { |
| checkPermission(MANAGE_BIOMETRIC); |
| if (!canUseBiometric(opPackageName, false /* foregroundOnly */, |
| Binder.getCallingUid(), Binder.getCallingPid(), |
| UserHandle.getCallingUserId())) { |
| return null; |
| } |
| |
| return FaceService.this.getEnrolledTemplates(userId); |
| } |
| |
| @Override // Binder call |
| public boolean hasEnrolledFaces(int userId, String opPackageName) { |
| checkPermission(USE_BIOMETRIC_INTERNAL); |
| if (!canUseBiometric(opPackageName, false /* foregroundOnly */, |
| Binder.getCallingUid(), Binder.getCallingPid(), |
| UserHandle.getCallingUserId())) { |
| return false; |
| } |
| |
| return FaceService.this.hasEnrolledBiometrics(userId); |
| } |
| |
| @Override // Binder call |
| public long getAuthenticatorId(int callingUserId) { |
| checkPermission(USE_BIOMETRIC_INTERNAL); |
| return FaceService.this.getAuthenticatorId(callingUserId); |
| } |
| |
| @Override // Binder call |
| public void resetLockout(byte[] token) { |
| checkPermission(MANAGE_BIOMETRIC); |
| |
| mHandler.post(() -> { |
| if (!FaceService.this.hasEnrolledBiometrics(mCurrentUserId)) { |
| Slog.w(TAG, "Ignoring lockout reset, no templates enrolled"); |
| return; |
| } |
| |
| Slog.d(TAG, "Resetting lockout for user: " + mCurrentUserId); |
| |
| try { |
| mDaemonWrapper.resetLockout(token); |
| } catch (RemoteException e) { |
| Slog.e(getTag(), "Unable to reset lockout", e); |
| } |
| }); |
| } |
| |
| @Override |
| public void setFeature(int userId, int feature, boolean enabled, final byte[] token, |
| IFaceServiceReceiver receiver, final String opPackageName) { |
| checkPermission(MANAGE_BIOMETRIC); |
| |
| mHandler.post(() -> { |
| if (DEBUG) { |
| Slog.d(TAG, "setFeature for user(" + userId + ")"); |
| } |
| updateActiveGroup(userId, opPackageName); |
| if (!FaceService.this.hasEnrolledBiometrics(mCurrentUserId)) { |
| Slog.e(TAG, "No enrolled biometrics while setting feature: " + feature); |
| return; |
| } |
| |
| final ArrayList<Byte> byteToken = new ArrayList<>(); |
| for (int i = 0; i < token.length; i++) { |
| byteToken.add(token[i]); |
| } |
| |
| // TODO: Support multiple faces |
| final int faceId = getFirstTemplateForUser(mCurrentUserId); |
| |
| if (mDaemon != null) { |
| try { |
| final int result = mDaemon.setFeature(feature, enabled, byteToken, faceId); |
| receiver.onFeatureSet(result == Status.OK, feature); |
| } catch (RemoteException e) { |
| Slog.e(getTag(), "Unable to set feature: " + feature |
| + " to enabled:" + enabled, e); |
| } |
| } |
| }); |
| |
| } |
| |
| @Override |
| public void getFeature(int userId, int feature, IFaceServiceReceiver receiver, |
| final String opPackageName) { |
| checkPermission(MANAGE_BIOMETRIC); |
| |
| mHandler.post(() -> { |
| if (DEBUG) { |
| Slog.d(TAG, "getFeature for user(" + userId + ")"); |
| } |
| updateActiveGroup(userId, opPackageName); |
| // This should ideally return tri-state, but the user isn't shown settings unless |
| // they are enrolled so it's fine for now. |
| if (!FaceService.this.hasEnrolledBiometrics(mCurrentUserId)) { |
| Slog.e(TAG, "No enrolled biometrics while getting feature: " + feature); |
| return; |
| } |
| |
| // TODO: Support multiple faces |
| final int faceId = getFirstTemplateForUser(mCurrentUserId); |
| |
| if (mDaemon != null) { |
| try { |
| OptionalBool result = mDaemon.getFeature(feature, faceId); |
| receiver.onFeatureGet(result.status == Status.OK, feature, result.value); |
| } catch (RemoteException e) { |
| Slog.e(getTag(), "Unable to getRequireAttention", e); |
| } |
| } |
| }); |
| |
| } |
| |
| @Override |
| public void userActivity() { |
| checkPermission(MANAGE_BIOMETRIC); |
| |
| if (mDaemon != null) { |
| try { |
| mDaemon.userActivity(); |
| } catch (RemoteException e) { |
| Slog.e(getTag(), "Unable to send userActivity", e); |
| } |
| } |
| } |
| |
| // TODO: Support multiple faces |
| private int getFirstTemplateForUser(int user) { |
| final List<Face> faces = FaceService.this.getEnrolledTemplates(user); |
| if (!faces.isEmpty()) { |
| return faces.get(0).getBiometricId(); |
| } |
| return 0; |
| } |
| |
| @Override // Binder call |
| public void initConfiguredStrength(int strength) { |
| checkPermission(USE_BIOMETRIC_INTERNAL); |
| initConfiguredStrengthInternal(strength); |
| } |
| } |
| |
| /** |
| * Receives callbacks from the ClientMonitor implementations. The results are forwarded to |
| * BiometricPrompt. |
| */ |
| private class BiometricPromptServiceListenerImpl extends BiometricServiceListener { |
| BiometricPromptServiceListenerImpl(IBiometricServiceReceiverInternal wrapperReceiver) { |
| super(wrapperReceiver); |
| } |
| |
| @Override |
| public void onAcquired(long deviceId, int acquiredInfo, int vendorCode) |
| throws RemoteException { |
| /** |
| * Map the acquired codes onto existing {@link BiometricConstants} acquired codes. |
| */ |
| if (getWrapperReceiver() != null) { |
| getWrapperReceiver().onAcquired( |
| FaceManager.getMappedAcquiredInfo(acquiredInfo, vendorCode), |
| FaceManager.getAcquiredString(getContext(), acquiredInfo, vendorCode)); |
| } |
| } |
| |
| @Override |
| public void onError(long deviceId, int error, int vendorCode, int cookie) |
| throws RemoteException { |
| if (getWrapperReceiver() != null) { |
| getWrapperReceiver().onError(cookie, TYPE_FACE, error, vendorCode); |
| } |
| } |
| } |
| |
| /** |
| * Receives callbacks from the ClientMonitor implementations. The results are forwarded to |
| * the FaceManager. |
| */ |
| private class ServiceListenerImpl implements ServiceListener { |
| private IFaceServiceReceiver mFaceServiceReceiver; |
| |
| public ServiceListenerImpl(IFaceServiceReceiver receiver) { |
| mFaceServiceReceiver = receiver; |
| } |
| |
| @Override |
| public void onEnrollResult(BiometricAuthenticator.Identifier identifier, int remaining) |
| throws RemoteException { |
| if (mFaceServiceReceiver != null) { |
| mFaceServiceReceiver.onEnrollResult(identifier.getDeviceId(), |
| identifier.getBiometricId(), |
| remaining); |
| } |
| } |
| |
| @Override |
| public void onAcquired(long deviceId, int acquiredInfo, int vendorCode) |
| throws RemoteException { |
| if (mFaceServiceReceiver != null) { |
| mFaceServiceReceiver.onAcquired(deviceId, acquiredInfo, vendorCode); |
| } |
| } |
| |
| @Override |
| public void onAuthenticationSucceeded(long deviceId, |
| BiometricAuthenticator.Identifier biometric, int userId) |
| throws RemoteException { |
| if (mFaceServiceReceiver != null) { |
| if (biometric == null || biometric instanceof Face) { |
| mFaceServiceReceiver.onAuthenticationSucceeded(deviceId, (Face) biometric, |
| userId, isStrongBiometric()); |
| } else { |
| Slog.e(TAG, "onAuthenticationSucceeded received non-face biometric"); |
| } |
| } |
| } |
| |
| @Override |
| public void onAuthenticationFailed(long deviceId) throws RemoteException { |
| if (mFaceServiceReceiver != null) { |
| mFaceServiceReceiver.onAuthenticationFailed(deviceId); |
| } |
| } |
| |
| @Override |
| public void onError(long deviceId, int error, int vendorCode, int cookie) |
| throws RemoteException { |
| if (mFaceServiceReceiver != null) { |
| mFaceServiceReceiver.onError(deviceId, error, vendorCode); |
| } |
| } |
| |
| @Override |
| public void onRemoved(BiometricAuthenticator.Identifier identifier, |
| int remaining) throws RemoteException { |
| if (mFaceServiceReceiver != null) { |
| mFaceServiceReceiver.onRemoved(identifier.getDeviceId(), |
| identifier.getBiometricId(), remaining); |
| } |
| } |
| |
| @Override |
| public void onEnumerated(BiometricAuthenticator.Identifier identifier, int remaining) |
| throws RemoteException { |
| if (mFaceServiceReceiver != null) { |
| mFaceServiceReceiver.onEnumerated(identifier.getDeviceId(), |
| identifier.getBiometricId(), remaining); |
| } |
| } |
| } |
| |
| private final FaceConstants mFaceConstants = new FaceConstants(); |
| |
| @GuardedBy("this") |
| private IBiometricsFace mDaemon; |
| private UsageStats mUsageStats; |
| private boolean mRevokeChallengePending = false; |
| // One of the AuthenticationClient constants |
| private int mCurrentUserLockoutMode; |
| |
| private NotificationManager mNotificationManager; |
| |
| private int[] mBiometricPromptIgnoreList; |
| private int[] mBiometricPromptIgnoreListVendor; |
| private int[] mKeyguardIgnoreList; |
| private int[] mKeyguardIgnoreListVendor; |
| private int[] mEnrollIgnoreList; |
| private int[] mEnrollIgnoreListVendor; |
| |
| /** |
| * Receives callbacks from the HAL. |
| */ |
| private IBiometricsFaceClientCallback mDaemonCallback = |
| new IBiometricsFaceClientCallback.Stub() { |
| @Override |
| public void onEnrollResult(final long deviceId, int faceId, int userId, |
| int remaining) { |
| mHandler.post(() -> { |
| final Face face = new Face(getBiometricUtils() |
| .getUniqueName(getContext(), userId), faceId, deviceId); |
| FaceService.super.handleEnrollResult(face, remaining); |
| |
| // Enrollment changes the authenticatorId, so update it here. |
| IBiometricsFace daemon = getFaceDaemon(); |
| if (remaining == 0 && daemon != null) { |
| try { |
| mAuthenticatorIds.put(userId, |
| hasEnrolledBiometrics(userId) ? daemon.getAuthenticatorId().value |
| : 0L); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Unable to get authenticatorId", e); |
| } |
| } |
| }); |
| } |
| |
| @Override |
| public void onAcquired(final long deviceId, final int userId, |
| final int acquiredInfo, |
| final int vendorCode) { |
| mHandler.post(() -> { |
| FaceService.super.handleAcquired(deviceId, acquiredInfo, vendorCode); |
| }); |
| } |
| |
| @Override |
| public void onAuthenticated(final long deviceId, final int faceId, final int userId, |
| ArrayList<Byte> token) { |
| mHandler.post(() -> { |
| final Face face = new Face("", faceId, deviceId); |
| final boolean authenticated = faceId != 0; |
| FaceService.super.handleAuthenticated(authenticated, face, token); |
| }); |
| } |
| |
| @Override |
| public void onError(final long deviceId, final int userId, final int error, |
| final int vendorCode) { |
| mHandler.post(() -> { |
| FaceService.super.handleError(deviceId, error, vendorCode); |
| |
| // TODO: this chunk of code should be common to all biometric services |
| if (error == BiometricConstants.BIOMETRIC_ERROR_HW_UNAVAILABLE) { |
| // If we get HW_UNAVAILABLE, try to connect again later... |
| Slog.w(TAG, "Got ERROR_HW_UNAVAILABLE; try reconnecting next client."); |
| synchronized (this) { |
| mDaemon = null; |
| mHalDeviceId = 0; |
| mCurrentUserId = UserHandle.USER_NULL; |
| } |
| } |
| }); |
| } |
| |
| @Override |
| public void onRemoved(final long deviceId, ArrayList<Integer> faceIds, final int userId) { |
| mHandler.post(() -> { |
| if (!faceIds.isEmpty()) { |
| for (int i = 0; i < faceIds.size(); i++) { |
| final Face face = new Face("", faceIds.get(i), deviceId); |
| // Convert to old behavior |
| FaceService.super.handleRemoved(face, faceIds.size() - i - 1); |
| } |
| } else { |
| final Face face = new Face("", 0 /* identifier */, deviceId); |
| FaceService.super.handleRemoved(face, 0 /* remaining */); |
| } |
| Settings.Secure.putIntForUser(getContext().getContentResolver(), |
| Settings.Secure.FACE_UNLOCK_RE_ENROLL, 0, UserHandle.USER_CURRENT); |
| }); |
| } |
| |
| @Override |
| public void onEnumerate(long deviceId, ArrayList<Integer> faceIds, int userId) |
| throws RemoteException { |
| mHandler.post(() -> { |
| if (!faceIds.isEmpty()) { |
| for (int i = 0; i < faceIds.size(); i++) { |
| final Face face = new Face("", faceIds.get(i), deviceId); |
| // Convert to old old behavior |
| FaceService.super.handleEnumerate(face, faceIds.size() - i - 1); |
| } |
| } else { |
| // For face, the HIDL contract is to receive an empty list when there are no |
| // templates enrolled. Send a null identifier since we don't consume them |
| // anywhere, and send remaining == 0 to plumb this with existing common code. |
| FaceService.super.handleEnumerate(null /* identifier */, 0); |
| } |
| }); |
| } |
| |
| @Override |
| public void onLockoutChanged(long duration) { |
| Slog.d(TAG, "onLockoutChanged: " + duration); |
| |
| if (duration == 0) { |
| mCurrentUserLockoutMode = AuthenticationClient.LOCKOUT_NONE; |
| } else if (duration == -1 || duration == Long.MAX_VALUE) { |
| mCurrentUserLockoutMode = AuthenticationClient.LOCKOUT_PERMANENT; |
| } else { |
| mCurrentUserLockoutMode = AuthenticationClient.LOCKOUT_TIMED; |
| } |
| |
| mHandler.post(() -> { |
| if (duration == 0) { |
| notifyLockoutResetMonitors(); |
| } |
| }); |
| } |
| }; |
| |
| /** |
| * Wraps the HAL-specific code and is passed to the ClientMonitor implementations so that they |
| * can be shared between the multiple biometric services. |
| */ |
| private final DaemonWrapper mDaemonWrapper = new DaemonWrapper() { |
| @Override |
| public int authenticate(long operationId, int groupId) throws RemoteException { |
| IBiometricsFace daemon = getFaceDaemon(); |
| if (daemon == null) { |
| Slog.w(TAG, "authenticate(): no face HAL!"); |
| return ERROR_ESRCH; |
| } |
| return daemon.authenticate(operationId); |
| } |
| |
| @Override |
| public int cancel() throws RemoteException { |
| IBiometricsFace daemon = getFaceDaemon(); |
| if (daemon == null) { |
| Slog.w(TAG, "cancel(): no face HAL!"); |
| return ERROR_ESRCH; |
| } |
| return daemon.cancel(); |
| } |
| |
| @Override |
| public int remove(int groupId, int biometricId) throws RemoteException { |
| IBiometricsFace daemon = getFaceDaemon(); |
| if (daemon == null) { |
| Slog.w(TAG, "remove(): no face HAL!"); |
| return ERROR_ESRCH; |
| } |
| return daemon.remove(biometricId); |
| } |
| |
| @Override |
| public int enumerate() throws RemoteException { |
| IBiometricsFace daemon = getFaceDaemon(); |
| if (daemon == null) { |
| Slog.w(TAG, "enumerate(): no face HAL!"); |
| return ERROR_ESRCH; |
| } |
| return daemon.enumerate(); |
| } |
| |
| @Override |
| public int enroll(byte[] cryptoToken, int groupId, int timeout, |
| ArrayList<Integer> disabledFeatures) throws RemoteException { |
| IBiometricsFace daemon = getFaceDaemon(); |
| if (daemon == null) { |
| Slog.w(TAG, "enroll(): no face HAL!"); |
| return ERROR_ESRCH; |
| } |
| final ArrayList<Byte> token = new ArrayList<>(); |
| for (int i = 0; i < cryptoToken.length; i++) { |
| token.add(cryptoToken[i]); |
| } |
| return daemon.enroll(token, timeout, disabledFeatures); |
| } |
| |
| @Override |
| public void resetLockout(byte[] cryptoToken) throws RemoteException { |
| IBiometricsFace daemon = getFaceDaemon(); |
| if (daemon == null) { |
| Slog.w(TAG, "resetLockout(): no face HAL!"); |
| return; |
| } |
| final ArrayList<Byte> token = new ArrayList<>(); |
| for (int i = 0; i < cryptoToken.length; i++) { |
| token.add(cryptoToken[i]); |
| } |
| daemon.resetLockout(token); |
| } |
| }; |
| |
| |
| public FaceService(Context context) { |
| super(context); |
| |
| final boolean ignoreKeyguardBlacklist = Settings.Secure.getInt(context.getContentResolver(), |
| SKIP_KEYGUARD_ACQUIRE_IGNORE_LIST, 0) != 0; |
| |
| mUsageStats = new UsageStats(context); |
| |
| mNotificationManager = getContext().getSystemService(NotificationManager.class); |
| |
| mBiometricPromptIgnoreList = getContext().getResources() |
| .getIntArray(R.array.config_face_acquire_biometricprompt_ignorelist); |
| mBiometricPromptIgnoreListVendor = getContext().getResources() |
| .getIntArray(R.array.config_face_acquire_vendor_biometricprompt_ignorelist); |
| mKeyguardIgnoreList = ignoreKeyguardBlacklist ? new int[0] : getContext().getResources() |
| .getIntArray(R.array.config_face_acquire_keyguard_ignorelist); |
| mKeyguardIgnoreListVendor = |
| ignoreKeyguardBlacklist ? new int[0] : getContext().getResources() |
| .getIntArray(R.array.config_face_acquire_vendor_keyguard_ignorelist); |
| mEnrollIgnoreList = getContext().getResources() |
| .getIntArray(R.array.config_face_acquire_enroll_ignorelist); |
| mEnrollIgnoreListVendor = getContext().getResources() |
| .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(); |
| publishBinderService(Context.FACE_SERVICE, new FaceServiceWrapper()); |
| // Get the face daemon on FaceService's on thread so SystemServerInitThreadPool isn't |
| // blocked |
| SystemServerInitThreadPool.submit(() -> mHandler.post(this::getFaceDaemon), |
| TAG + ".onStart"); |
| } |
| |
| @Override |
| public String getTag() { |
| return TAG; |
| } |
| |
| @Override |
| protected DaemonWrapper getDaemonWrapper() { |
| return mDaemonWrapper; |
| } |
| |
| @Override |
| protected BiometricUtils getBiometricUtils() { |
| return FaceUtils.getInstance(); |
| } |
| |
| @Override |
| protected Constants getConstants() { |
| return mFaceConstants; |
| } |
| |
| @Override |
| protected boolean hasReachedEnrollmentLimit(int userId) { |
| final int limit = getContext().getResources().getInteger( |
| com.android.internal.R.integer.config_faceMaxTemplatesPerUser); |
| final int enrolled = FaceService.this.getEnrolledTemplates(userId).size(); |
| if (enrolled >= limit) { |
| Slog.w(TAG, "Too many faces registered, user: " + userId); |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public void serviceDied(long cookie) { |
| super.serviceDied(cookie); |
| mDaemon = null; |
| |
| mCurrentUserId = UserHandle.USER_NULL; // Force updateActiveGroup() to re-evaluate |
| } |
| |
| @Override |
| protected void updateActiveGroup(int userId, String clientPackage) { |
| IBiometricsFace daemon = getFaceDaemon(); |
| |
| if (daemon != null) { |
| try { |
| userId = getUserOrWorkProfileId(clientPackage, userId); |
| if (userId != mCurrentUserId) { |
| final File baseDir = Environment.getDataVendorDeDirectory(userId); |
| final File faceDir = new File(baseDir, FACE_DATA_DIR); |
| if (!faceDir.exists()) { |
| if (!faceDir.mkdir()) { |
| Slog.v(TAG, "Cannot make directory: " + faceDir.getAbsolutePath()); |
| return; |
| } |
| // Calling mkdir() from this process will create a directory with our |
| // permissions (inherited from the containing dir). This command fixes |
| // the label. |
| if (!SELinux.restorecon(faceDir)) { |
| Slog.w(TAG, "Restorecons failed. Directory will have wrong label."); |
| return; |
| } |
| } |
| |
| daemon.setActiveUser(userId, faceDir.getAbsolutePath()); |
| mCurrentUserId = userId; |
| mAuthenticatorIds.put(userId, |
| hasEnrolledBiometrics(userId) ? daemon.getAuthenticatorId().value : 0L); |
| } |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to setActiveUser():", e); |
| } |
| } |
| } |
| |
| @Override |
| protected String getLockoutResetIntent() { |
| return ACTION_LOCKOUT_RESET; |
| } |
| |
| @Override |
| protected String getLockoutBroadcastPermission() { |
| return RESET_FACE_LOCKOUT; |
| } |
| |
| @Override |
| protected long getHalDeviceId() { |
| return mHalDeviceId; |
| } |
| |
| @Override |
| protected void handleUserSwitching(int userId) { |
| super.handleUserSwitching(userId); |
| // Will be updated when we get the callback from HAL |
| mCurrentUserLockoutMode = AuthenticationClient.LOCKOUT_NONE; |
| } |
| |
| @Override |
| protected boolean hasEnrolledBiometrics(int userId) { |
| if (userId != UserHandle.getCallingUserId()) { |
| checkPermission(INTERACT_ACROSS_USERS); |
| } |
| return getBiometricUtils().getBiometricsForUser(getContext(), userId).size() > 0; |
| } |
| |
| @Override |
| protected String getManageBiometricPermission() { |
| return MANAGE_BIOMETRIC; |
| } |
| |
| @Override |
| protected void checkUseBiometricPermission() { |
| // noop for Face. The permission checks are all done on the incoming binder call. |
| } |
| |
| @Override |
| protected boolean checkAppOps(int uid, String opPackageName) { |
| return mAppOps.noteOp(AppOpsManager.OP_USE_BIOMETRIC, uid, opPackageName) |
| == AppOpsManager.MODE_ALLOWED; |
| } |
| |
| @Override |
| protected List<Face> getEnrolledTemplates(int userId) { |
| return getBiometricUtils().getBiometricsForUser(getContext(), userId); |
| } |
| |
| @Override |
| protected void notifyClientActiveCallbacks(boolean isActive) { |
| // noop for Face. |
| } |
| |
| @Override |
| protected int statsModality() { |
| return BiometricsProtoEnums.MODALITY_FACE; |
| } |
| |
| @Override |
| protected int getLockoutMode() { |
| return mCurrentUserLockoutMode; |
| } |
| |
| /** Gets the face daemon */ |
| private synchronized IBiometricsFace getFaceDaemon() { |
| if (mDaemon == null) { |
| Slog.v(TAG, "mDaemon was null, reconnect to face"); |
| try { |
| mDaemon = IBiometricsFace.getService(); |
| } catch (java.util.NoSuchElementException e) { |
| // Service doesn't exist or cannot be opened. Logged below. |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to get biometric interface", e); |
| } |
| if (mDaemon == null) { |
| Slog.w(TAG, "face HIDL not available"); |
| return null; |
| } |
| |
| mDaemon.asBinder().linkToDeath(this, 0); |
| |
| try { |
| mHalDeviceId = mDaemon.setCallback(mDaemonCallback).value; |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to open face HAL", e); |
| mDaemon = null; // try again later! |
| } |
| |
| if (DEBUG) Slog.v(TAG, "Face HAL id: " + mHalDeviceId); |
| if (mHalDeviceId != 0) { |
| loadAuthenticatorIds(); |
| updateActiveGroup(ActivityManager.getCurrentUser(), null); |
| doTemplateCleanupForUser(ActivityManager.getCurrentUser()); |
| } else { |
| Slog.w(TAG, "Failed to open Face HAL!"); |
| MetricsLogger.count(getContext(), "faced_openhal_error", 1); |
| mDaemon = null; |
| } |
| } |
| return mDaemon; |
| } |
| |
| private long startGenerateChallenge(IBinder token) { |
| IBiometricsFace daemon = getFaceDaemon(); |
| if (daemon == null) { |
| Slog.w(TAG, "startGenerateChallenge: no face HAL!"); |
| return 0; |
| } |
| try { |
| return daemon.generateChallenge(CHALLENGE_TIMEOUT_SEC).value; |
| } catch (RemoteException e) { |
| Slog.e(TAG, "startGenerateChallenge failed", e); |
| } |
| return 0; |
| } |
| |
| private int startRevokeChallenge(IBinder token) { |
| IBiometricsFace daemon = getFaceDaemon(); |
| if (daemon == null) { |
| Slog.w(TAG, "startRevokeChallenge: no face HAL!"); |
| return 0; |
| } |
| try { |
| 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); |
| } |
| return 0; |
| } |
| |
| private void dumpInternal(PrintWriter pw) { |
| JSONObject dump = new JSONObject(); |
| try { |
| dump.put("service", "Face Manager"); |
| |
| JSONArray sets = new JSONArray(); |
| for (UserInfo user : UserManager.get(getContext()).getUsers()) { |
| final int userId = user.getUserHandle().getIdentifier(); |
| final int N = getBiometricUtils().getBiometricsForUser(getContext(), userId).size(); |
| PerformanceStats stats = mPerformanceMap.get(userId); |
| PerformanceStats cryptoStats = mCryptoPerformanceMap.get(userId); |
| JSONObject set = new JSONObject(); |
| set.put("id", userId); |
| set.put("count", N); |
| set.put("accept", (stats != null) ? stats.accept : 0); |
| set.put("reject", (stats != null) ? stats.reject : 0); |
| set.put("acquire", (stats != null) ? stats.acquire : 0); |
| set.put("lockout", (stats != null) ? stats.lockout : 0); |
| set.put("permanentLockout", (stats != null) ? stats.permanentLockout : 0); |
| // cryptoStats measures statistics about secure face transactions |
| // (e.g. to unlock password storage, make secure purchases, etc.) |
| set.put("acceptCrypto", (cryptoStats != null) ? cryptoStats.accept : 0); |
| set.put("rejectCrypto", (cryptoStats != null) ? cryptoStats.reject : 0); |
| set.put("acquireCrypto", (cryptoStats != null) ? cryptoStats.acquire : 0); |
| set.put("lockoutCrypto", (cryptoStats != null) ? cryptoStats.lockout : 0); |
| set.put("permanentLockoutCrypto", |
| (cryptoStats != null) ? cryptoStats.permanentLockout : 0); |
| sets.put(set); |
| } |
| |
| dump.put("prints", sets); |
| } catch (JSONException e) { |
| Slog.e(TAG, "dump formatting failure", e); |
| } |
| pw.println(dump); |
| pw.println("HAL deaths since last reboot: " + mHALDeathCount); |
| |
| mUsageStats.print(pw); |
| } |
| |
| private void dumpHal(FileDescriptor fd, String[] args) { |
| // WARNING: CDD restricts image data from leaving TEE unencrypted on |
| // production devices: |
| // [C-1-10] MUST not allow unencrypted access to identifiable biometric |
| // data or any data derived from it (such as embeddings) to the |
| // Application Processor outside the context of the TEE. |
| // As such, this API should only be enabled for testing purposes on |
| // engineering and userdebug builds. All modules in the software stack |
| // MUST enforce final build products do NOT have this functionality. |
| // Additionally, the following check MUST NOT be removed. |
| if (!(Build.IS_ENG || Build.IS_USERDEBUG)) { |
| return; |
| } |
| |
| // Additionally, this flag allows turning off face for a device |
| // (either permanently through the build or on an individual device). |
| if (SystemProperties.getBoolean("ro.face.disable_debug_data", false) |
| || SystemProperties.getBoolean("persist.face.disable_debug_data", false)) { |
| return; |
| } |
| |
| // The debug method takes two file descriptors. The first is for text |
| // output, which we will drop. The second is for binary data, which |
| // will be the protobuf data. |
| final IBiometricsFace daemon = getFaceDaemon(); |
| if (daemon != null) { |
| FileOutputStream devnull = null; |
| try { |
| devnull = new FileOutputStream("/dev/null"); |
| final NativeHandle handle = new NativeHandle( |
| new FileDescriptor[] { devnull.getFD(), fd }, |
| new int[0], false); |
| daemon.debug(handle, new ArrayList<String>(Arrays.asList(args))); |
| } catch (IOException | RemoteException ex) { |
| Slog.d(TAG, "error while reading face debugging data", ex); |
| } finally { |
| if (devnull != null) { |
| try { |
| devnull.close(); |
| } catch (IOException ex) { |
| } |
| } |
| } |
| } |
| } |
| } |
