Fingerprint should confirm device lock when unified (d18d1495) · Commits · e / os / android_frameworks_base

core/java/com/android/internal/widget/ILockSettings.aidl

+1 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,7 @@ interface ILockSettings {
		void setLockPassword(in String password, in String savedPassword, int userId);
		VerifyCredentialResponse checkPassword(in String password, int userId);
		VerifyCredentialResponse verifyPassword(in String password, long challenge, int userId);
		VerifyCredentialResponse verifyTiedProfileChallenge(String password, boolean isPattern, long challenge, int userId);
		boolean checkVoldPassword(int userId);
		boolean havePattern(int userId);
		boolean havePassword(int userId);

core/java/com/android/internal/widget/LockPatternChecker.java

+37 −0

Original line number	Diff line number	Diff line
		@@ -144,6 +144,43 @@ public final class LockPatternChecker {
		return task;
		}

		/**
		* Verify a password asynchronously.
		*
		* @param utils The LockPatternUtils instance to use.
		* @param password The password to check.
		* @param challenge The challenge to verify against the pattern.
		* @param userId The user to check against the pattern.
		* @param callback The callback to be invoked with the verification result.
		*/
		public static AsyncTask<?, ?, ?> verifyTiedProfileChallenge(final LockPatternUtils utils,
		final String password,
		final boolean isPattern,
		final long challenge,
		final int userId,
		final OnVerifyCallback callback) {
		AsyncTask<Void, Void, byte[]> task = new AsyncTask<Void, Void, byte[]>() {
		private int mThrottleTimeout;

		@Override
		protected byte[] doInBackground(Void... args) {
		try {
		return utils.verifyTiedProfileChallenge(password, isPattern, challenge, userId);
		} catch (RequestThrottledException ex) {
		mThrottleTimeout = ex.getTimeoutMs();
		return null;
		}
		}

		@Override
		protected void onPostExecute(byte[] result) {
		callback.onVerified(result, mThrottleTimeout);
		}
		};
		task.execute();
		return task;
		}

		/**
		* Checks a password asynchronously.
		*

core/java/com/android/internal/widget/LockPatternUtils.java

+30 −0

Original line number	Diff line number	Diff line
		@@ -375,6 +375,36 @@ public class LockPatternUtils {
		}
		}


		/**
		* Check to see if a password matches the saved password.
		* If password matches, return an opaque attestation that the challenge
		* was verified.
		*
		* @param password The password to check.
		* @param challenge The challenge to verify against the password
		* @return the attestation that the challenge was verified, or null.
		*/
		public byte[] verifyTiedProfileChallenge(String password, boolean isPattern, long challenge,
		int userId) throws RequestThrottledException {
		throwIfCalledOnMainThread();
		try {
		VerifyCredentialResponse response =
		getLockSettings().verifyTiedProfileChallenge(password, isPattern, challenge,
		userId);

		if (response.getResponseCode() == VerifyCredentialResponse.RESPONSE_OK) {
		return response.getPayload();
		} else if (response.getResponseCode() == VerifyCredentialResponse.RESPONSE_RETRY) {
		throw new RequestThrottledException(response.getTimeout());
		} else {
		return null;
		}
		} catch (RemoteException re) {
		return null;
		}
		}

		/**
		* Check to see if a password matches the saved password. If no password exists,
		* always returns true.

services/core/java/com/android/server/LockSettingsService.java

+31 −0

Original line number	Diff line number	Diff line
		@@ -1110,6 +1110,37 @@ public class LockSettingsService extends ILockSettings.Stub {
		return doVerifyPassword(password, true, challenge, userId);
		}

		@Override
		public VerifyCredentialResponse verifyTiedProfileChallenge(String password, boolean isPattern,
		long challenge, int userId) throws RemoteException {
		checkPasswordReadPermission(userId);
		if (!isManagedProfileWithUnifiedLock(userId)) {
		throw new RemoteException("User id must be managed profile with unified lock");
		}
		final int parentProfileId = mUserManager.getProfileParent(userId).id;
		// Unlock parent by using parent's challenge
		final VerifyCredentialResponse parentResponse = isPattern
		? doVerifyPattern(password, true, challenge, parentProfileId)
		: doVerifyPassword(password, true, challenge, parentProfileId);
		if (parentResponse.getResponseCode() != VerifyCredentialResponse.RESPONSE_OK) {
		// Failed, just return parent's response
		return parentResponse;
		}

		try {
		// Unlock work profile, and work profile with unified lock must use password only
		return doVerifyPassword(getDecryptedPasswordForTiedProfile(userId), true,
		challenge,
		userId);
		} catch (UnrecoverableKeyException \| InvalidKeyException \| KeyStoreException
		\| NoSuchAlgorithmException \| NoSuchPaddingException
		\| InvalidAlgorithmParameterException \| IllegalBlockSizeException
		\| BadPaddingException \| CertificateException \| IOException e) {
		Slog.e(TAG, "Failed to decrypt child profile key", e);
		throw new RemoteException("Unable to get tied profile token");
		}
		}

		private VerifyCredentialResponse doVerifyPassword(String password, boolean hasChallenge,
		long challenge, int userId) throws RemoteException {
		checkPasswordReadPermission(userId);

services/core/java/com/android/server/fingerprint/FingerprintService.java

+2 −10

Original line number	Diff line number	Diff line
		@@ -947,10 +947,6 @@ public class FingerprintService extends SystemService implements IBinder.DeathRe
		if (DEBUG) Slog.v(TAG, "authenticate(): reject " + opPackageName);
		return;
		}

		// Group ID is arbitrarily set to parent profile user ID. It just represents
		// the default fingerprints for the user.
		final int effectiveGroupId = getEffectiveUserId(groupId);
		final int realUserId = Binder.getCallingUid();

		final boolean restricted = isRestricted();
		@@ -958,7 +954,7 @@ public class FingerprintService extends SystemService implements IBinder.DeathRe
		@Override
		public void run() {
		MetricsLogger.histogram(mContext, "fingerprint_token", opId != 0L ? 1 : 0);
		startAuthentication(token, opId, realUserId, effectiveGroupId, receiver,
		startAuthentication(token, opId, realUserId, groupId, receiver,
		flags, restricted, opPackageName);
		}
		});
		@@ -993,14 +989,10 @@ public class FingerprintService extends SystemService implements IBinder.DeathRe
		final IFingerprintServiceReceiver receiver) {
		checkPermission(MANAGE_FINGERPRINT); // TODO: Maybe have another permission
		final boolean restricted = isRestricted();

		// Group ID is arbitrarily set to parent profile user ID. It just represents
		// the default fingerprints for the user.
		final int effectiveGroupId = getEffectiveUserId(groupId);
		mHandler.post(new Runnable() {
		@Override
		public void run() {
		startRemove(token, fingerId, effectiveGroupId, receiver, restricted);
		startRemove(token, fingerId, groupId, receiver, restricted);
		}
		});