Merge "Merge "Fix clearing password with DPM.resetPasswordWithToken()" into... (502170b9) · Commits · e / os / android_frameworks_base

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

+62 −31

Original line number	Diff line number	Diff line
		@@ -189,6 +189,7 @@ public class LockSettingsService extends ILockSettings.Stub {
		private final LockPatternUtils mLockPatternUtils;
		private final NotificationManager mNotificationManager;
		private final UserManager mUserManager;
		private final IStorageManager mStorageManager;
		private final IActivityManager mActivityManager;
		private final SyntheticPasswordManager mSpManager;

		@@ -460,6 +461,7 @@ public class LockSettingsService extends ILockSettings.Stub {
		mStorage = injector.getStorage();
		mNotificationManager = injector.getNotificationManager();
		mUserManager = injector.getUserManager();
		mStorageManager = injector.getStorageManager();
		mStrongAuthTracker = injector.getStrongAuthTracker();
		mStrongAuthTracker.register(mStrongAuth);

		@@ -1186,6 +1188,14 @@ public class LockSettingsService extends ILockSettings.Stub {
		}
		}

		/**
		* Unlock the user (both storage and user state) and its associated managed profiles
		* synchronously.
		*
		* <em>Be very careful about the risk of deadlock here: ActivityManager.unlockUser()
		* can end up calling into other system services to process user unlock request (via
		* {@link com.android.server.SystemServiceManager#unlockUser} </em>
		*/
		private void unlockUser(int userId, byte[] token, byte[] secret) {
		// TODO: make this method fully async so we can update UI with progress strings
		final CountDownLatch latch = new CountDownLatch(1);
		@@ -1639,13 +1649,27 @@ public class LockSettingsService extends ILockSettings.Stub {
		}
		}

		private boolean isUserKeyUnlocked(int userId) {
		try {
		return mStorageManager.isUserKeyUnlocked(userId);
		} catch (RemoteException e) {
		Log.e(TAG, "failed to check user key locked state", e);
		return false;
		}
		}

		/** Unlock disk encryption */
		private void unlockUserKey(int userId, byte[] token, byte[] secret) throws RemoteException {
		final UserInfo userInfo = mUserManager.getUserInfo(userId);
		mStorageManager.unlockUserKey(userId, userInfo.serialNumber, token, secret);
		}

		private void addUserKeyAuth(int userId, byte[] token, byte[] secret)
		throws RemoteException {
		final UserInfo userInfo = mUserManager.getUserInfo(userId);
		final IStorageManager storageManager = mInjector.getStorageManager();
		final long callingId = Binder.clearCallingIdentity();
		try {
		storageManager.addUserKeyAuth(userId, userInfo.serialNumber, token, secret);
		mStorageManager.addUserKeyAuth(userId, userInfo.serialNumber, token, secret);
		} finally {
		Binder.restoreCallingIdentity(callingId);
		}
		@@ -1654,10 +1678,9 @@ public class LockSettingsService extends ILockSettings.Stub {
		private void fixateNewestUserKeyAuth(int userId)
		throws RemoteException {
		if (DEBUG) Slog.d(TAG, "fixateNewestUserKeyAuth: user=" + userId);
		final IStorageManager storageManager = mInjector.getStorageManager();
		final long callingId = Binder.clearCallingIdentity();
		try {
		storageManager.fixateNewestUserKeyAuth(userId);
		mStorageManager.fixateNewestUserKeyAuth(userId);
		} finally {
		Binder.restoreCallingIdentity(callingId);
		}
		@@ -2571,7 +2594,7 @@ public class LockSettingsService extends ILockSettings.Stub {
		credential, credentialType, auth, requestedQuality, userId);
		final Map<Integer, byte[]> profilePasswords;
		if (credential != null) {
		// // not needed by synchronizeUnifiedWorkChallengeForProfiles()
		// not needed by synchronizeUnifiedWorkChallengeForProfiles()
		profilePasswords = null;

		if (mSpManager.hasSidForUser(userId)) {
		@@ -2599,9 +2622,12 @@ public class LockSettingsService extends ILockSettings.Stub {
		mSpManager.clearSidForUser(userId);
		getGateKeeperService().clearSecureUserId(userId);
		// Clear key from vold so ActivityManager can just unlock the user with empty secret
		// during boot.
		// during boot. Vold storage needs to be unlocked before manipulation of the keys can
		// succeed.
		unlockUserKey(userId, null, auth.deriveDiskEncryptionKey());
		clearUserKeyProtection(userId);
		fixateNewestUserKeyAuth(userId);
		unlockKeystore(auth.deriveKeyStorePassword(), userId);
		setKeystorePassword(null, userId);
		}
		setLong(SYNTHETIC_PASSWORD_HANDLE_KEY, newHandle, userId);
		@@ -2809,23 +2835,30 @@ public class LockSettingsService extends ILockSettings.Stub {
		if (!mSpManager.hasEscrowData(userId)) {
		throw new SecurityException("Escrow token is disabled on the current user");
		}
		result = setLockCredentialWithTokenInternal(credential, type, tokenHandle, token,
		result = setLockCredentialWithTokenInternalLocked(credential, type, tokenHandle, token,
		requestedQuality, userId);
		}
		if (result) {
		synchronized (mSeparateChallengeLock) {
		setSeparateProfileChallengeEnabledLocked(userId, true, null);
		}
		if (credential == null) {
		// If clearing credential, unlock the user manually in order to progress user start
		// Call unlockUser() on a handler thread so no lock is held (either by LSS or by
		// the caller like DPMS), otherwise it can lead to deadlock.
		mHandler.post(() -> unlockUser(userId, null, null));
		}
		notifyPasswordChanged(userId);
		notifySeparateProfileChallengeChanged(userId);
		}
		return result;
		}

		private boolean setLockCredentialWithTokenInternal(byte[] credential, int type,
		long tokenHandle, byte[] token, int requestedQuality, int userId) throws RemoteException {
		@GuardedBy("mSpManager")
		private boolean setLockCredentialWithTokenInternalLocked(byte[] credential, int type,
		long tokenHandle, byte[] token, int requestedQuality, int userId)
		throws RemoteException {
		final AuthenticationResult result;
		synchronized (mSpManager) {
		result = mSpManager.unwrapTokenBasedSyntheticPassword(
		getGateKeeperService(), tokenHandle, token, userId);
		if (result.authToken == null) {
		@@ -2839,15 +2872,13 @@ public class LockSettingsService extends ILockSettings.Stub {
		+ "verification.");
		return false;
		}
		// Update PASSWORD_TYPE_KEY since it's needed by notifyActivePasswordMetricsAvailable()
		// called by setLockCredentialWithAuthTokenLocked().
		// TODO: refactor usage of PASSWORD_TYPE_KEY b/65239740
		setLong(LockPatternUtils.PASSWORD_TYPE_KEY, requestedQuality, userId);
		long oldHandle = getSyntheticPasswordHandleLocked(userId);
		setLockCredentialWithAuthTokenLocked(credential, type, result.authToken,
		requestedQuality, userId);
		mSpManager.destroyPasswordBasedSyntheticPassword(oldHandle, userId);
		}

		onAuthTokenKnownForUser(userId, result.authToken);
		return true;
		}

services/core/java/com/android/server/locksettings/LockSettingsShellCommand.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -260,6 +260,10 @@ class LockSettingsShellCommand extends ShellCommand {
		return false;
		}
		} else {
		if (!mOld.isEmpty()) {
		getOutPrintWriter().println("Old password provided but user has no password");
		return false;
		}
		return true;
		}
		}

services/tests/servicestests/src/com/android/server/locksettings/FakeStorageManager.java

+7 −11

Original line number	Diff line number	Diff line
		@@ -65,17 +65,13 @@ public class FakeStorageManager {
		listener.onStarted(userId, null);
		listener.onFinished(userId, null);
		ArrayList<Pair<byte[], byte[]>> auths = getUserAuth(userId);
		if (secret != null) {
		if (auths.size() > 1) {
		throw new AssertionFailedError("More than one secret exists");
		}
		Pair<byte[], byte[]> auth = auths.get(0);
		if ((!mIgnoreBadUnlock) && auth.second != null && !Arrays.equals(secret, auth.second)) {
		throw new AssertionFailedError("Invalid secret to unlock user");
		}
		} else {
		if (auths != null && auths.size() > 0) {
		throw new AssertionFailedError("Cannot unlock encrypted user with empty token");
		if (!Arrays.equals(secret, auth.second)) {
		if (!mIgnoreBadUnlock) {
		throw new AssertionFailedError("Invalid secret to unlock user " + userId);
		}
		}
		}