Fingerprint Strong auth timeout (0b72a722) · Commits · e / os / android_frameworks_base

core/java/android/app/admin/DevicePolicyManager.java

+80 −0

Original line number	Diff line number	Diff line
		@@ -416,6 +416,14 @@ public class DevicePolicyManager {
		*/
		public static final int NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED = 3;

		/**
		* Default and maximum timeout in milliseconds after which unlocking with weak auth times out,
		* i.e. the user has to use a strong authentication method like password, PIN or pattern.
		*
		* @hide
		*/
		public static final long DEFAULT_STRONG_AUTH_TIMEOUT_MS = 72 * 60 * 60 * 1000; // 72h

		/**
		* A {@link android.os.Parcelable} extra of type {@link android.os.PersistableBundle} that
		* allows a mobile device management application or NFC programmer application which starts
		@@ -2335,6 +2343,78 @@ public class DevicePolicyManager {
		return 0;
		}

		/**
		* Called by a device/profile owner to set the timeout after which unlocking with secondary, non
		* strong auth (e.g. fingerprint, trust agents) times out, i.e. the user has to use a strong
		* authentication method like password, pin or pattern.
		*
		* <p>This timeout is used internally to reset the timer to require strong auth again after
		* specified timeout each time it has been successfully used.
		*
		* <p>Fingerprint can also be disabled altogether using {@link #KEYGUARD_DISABLE_FINGERPRINT}.
		*
		* <p>Trust agents can also be disabled altogether using {@link #KEYGUARD_DISABLE_TRUST_AGENTS}.
		*
		* <p>The calling device admin must be a device or profile owner. If it is not,
		* a {@link SecurityException} will be thrown.
		*
		* <p>This method can be called on the {@link DevicePolicyManager} instance returned by
		* {@link #getParentProfileInstance(ComponentName)} in order to set restrictions on the parent
		* profile.
		*
		* @param admin Which {@link DeviceAdminReceiver} this request is associated with.
		* @param timeoutMs The new timeout, after which the user will have to unlock with strong
		* authentication method. If the timeout is lower than 1 hour (minimum) or higher than
		* 72 hours (default and maximum) an {@link IllegalArgumentException} is thrown.
		*
		* @throws SecurityException if {@code admin} is not a device or profile owner.
		* @throws IllegalArgumentException if the timeout is lower than 1 hour (minimum) or higher than
		* 72 hours (default and maximum)
		*
		* @hide
		*/
		public void setRequiredStrongAuthTimeout(@NonNull ComponentName admin,
		long timeoutMs) {
		if (mService != null) {
		try {
		mService.setRequiredStrongAuthTimeout(admin, timeoutMs, mParentInstance);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		}
		}

		/**
		* Determine for how long the user will be able to use secondary, non strong auth for
		* authentication, since last strong method authentication (password, pin or pattern) was used.
		* After the returned timeout the user is required to use strong authentication method.
		*
		* <p>This method can be called on the {@link DevicePolicyManager} instance
		* returned by {@link #getParentProfileInstance(ComponentName)} in order to retrieve
		* restrictions on the parent profile.
		*
		* @param admin The name of the admin component to check, or {@code null} to aggregate
		* accross all participating admins.
		* @return The timeout or default timeout if not configured
		*
		* @hide
		*/
		public long getRequiredStrongAuthTimeout(@Nullable ComponentName admin) {
		return getRequiredStrongAuthTimeout(admin, myUserId());
		}

		/** @hide per-user version */
		public long getRequiredStrongAuthTimeout(@Nullable ComponentName admin, @UserIdInt int userId) {
		if (mService != null) {
		try {
		return mService.getRequiredStrongAuthTimeout(admin, userId, mParentInstance);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		}
		return DEFAULT_STRONG_AUTH_TIMEOUT_MS;
		}

		/**
		* Make the device lock immediately, as if the lock screen timeout has expired at the point of
		* this call.

core/java/android/app/admin/IDevicePolicyManager.aidl

+3 −0

Original line number	Diff line number	Diff line
		@@ -82,6 +82,9 @@ interface IDevicePolicyManager {
		long getMaximumTimeToLock(in ComponentName who, int userHandle, boolean parent);
		long getMaximumTimeToLockForUserAndProfiles(int userHandle);

		void setRequiredStrongAuthTimeout(in ComponentName who, long timeMs, boolean parent);
		long getRequiredStrongAuthTimeout(in ComponentName who, int userId, boolean parent);

		void lockNow(boolean parent);

		void wipeData(int flags);

packages/Keyguard/src/com/android/keyguard/KeyguardUpdateMonitor.java

+4 −7

Original line number	Diff line number	Diff line
		@@ -111,12 +111,6 @@ public class KeyguardUpdateMonitor implements TrustManager.TrustListener {

		private static final String PERMISSION_SELF = "com.android.systemui.permission.SELF";

		/**
		* Milliseconds after unlocking with fingerprint times out, i.e. the user has to use a
		* strong auth method like password, PIN or pattern.
		*/
		private static final long FINGERPRINT_UNLOCK_TIMEOUT_MS = 72 * 60 * 60 * 1000;

		// Callback messages
		private static final int MSG_TIME_UPDATE = 301;
		private static final int MSG_BATTERY_UPDATE = 302;
		@@ -608,7 +602,10 @@ public class KeyguardUpdateMonitor implements TrustManager.TrustListener {
		}

		private void scheduleStrongAuthTimeout() {
		long when = SystemClock.elapsedRealtime() + FINGERPRINT_UNLOCK_TIMEOUT_MS;
		final DevicePolicyManager dpm =
		(DevicePolicyManager) mContext.getSystemService(Context.DEVICE_POLICY_SERVICE);
		long when = SystemClock.elapsedRealtime() + dpm.getRequiredStrongAuthTimeout(null,
		sCurrentUser);
		Intent intent = new Intent(ACTION_STRONG_AUTH_TIMEOUT);
		intent.putExtra(USER_ID, sCurrentUser);
		PendingIntent sender = PendingIntent.getBroadcast(mContext,

services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java

+73 −0

Original line number	Diff line number	Diff line
		@@ -309,6 +309,12 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {

		private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000;

		/**
		* Minimum timeout in milliseconds after which unlocking with weak auth times out,
		* i.e. the user has to use a strong authentication method like password, PIN or pattern.
		*/
		private static final long MINIMUM_STRONG_AUTH_TIMEOUT_MS = 1 * 60 * 60 * 1000; // 1h

		final Context mContext;
		final Injector mInjector;
		final IPackageManager mIPackageManager;
		@@ -550,6 +556,7 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		private static final String TAG_PERMITTED_IMES = "permitted-imes";
		private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe";
		private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock";
		private static final String TAG_STRONG_AUTH_UNLOCK_TIMEOUT = "strong-auth-unlock-timeout";
		private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter";
		private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols";
		private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric";
		@@ -604,6 +611,8 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0;
		long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK;

		long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS;

		static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0;
		int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE;

		@@ -753,6 +762,11 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock));
		out.endTag(null, TAG_MAX_TIME_TO_UNLOCK);
		}
		if (strongAuthUnlockTimeout != DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) {
		out.startTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT);
		out.attribute(null, ATTR_VALUE, Long.toString(strongAuthUnlockTimeout));
		out.endTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT);
		}
		if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) {
		out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE);
		out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe));
		@@ -967,6 +981,9 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		} else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) {
		maximumTimeToUnlock = Long.parseLong(
		parser.getAttributeValue(null, ATTR_VALUE));
		} else if (TAG_STRONG_AUTH_UNLOCK_TIMEOUT.equals(tag)) {
		strongAuthUnlockTimeout = Long.parseLong(
		parser.getAttributeValue(null, ATTR_VALUE));
		} else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) {
		maximumFailedPasswordsForWipe = Integer.parseInt(
		parser.getAttributeValue(null, ATTR_VALUE));
		@@ -1218,6 +1235,8 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		pw.println(minimumPasswordNonLetter);
		pw.print(prefix); pw.print("maximumTimeToUnlock=");
		pw.println(maximumTimeToUnlock);
		pw.print(prefix); pw.print("strongAuthUnlockTimeout=");
		pw.println(strongAuthUnlockTimeout);
		pw.print(prefix); pw.print("maximumFailedPasswordsForWipe=");
		pw.println(maximumFailedPasswordsForWipe);
		pw.print(prefix); pw.print("specifiesGlobalProxy=");
		@@ -4222,6 +4241,60 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		return time;
		}

		@Override
		public void setRequiredStrongAuthTimeout(ComponentName who, long timeoutMs,
		boolean parent) {
		if (!mHasFeature) {
		return;
		}
		Preconditions.checkNotNull(who, "ComponentName is null");
		Preconditions.checkArgument(timeoutMs >= MINIMUM_STRONG_AUTH_TIMEOUT_MS,
		"Timeout must not be lower than the minimum strong auth timeout.");
		Preconditions.checkArgument(timeoutMs <= DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS,
		"Timeout must not be higher than the default strong auth timeout.");

		final int userHandle = mInjector.userHandleGetCallingUserId();
		synchronized (this) {
		ActiveAdmin ap = getActiveAdminForCallerLocked(who,
		DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent);
		if (ap.strongAuthUnlockTimeout != timeoutMs) {
		ap.strongAuthUnlockTimeout = timeoutMs;
		saveSettingsLocked(userHandle);
		}
		}
		}

		/**
		* Return a single admin's strong auth unlock timeout or minimum value (strictest) of all
		* admins if who is null.
		* Returns default timeout if not configured.
		*/
		@Override
		public long getRequiredStrongAuthTimeout(ComponentName who, int userId, boolean parent) {
		if (!mHasFeature) {
		return DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS;
		}
		enforceFullCrossUsersPermission(userId);
		synchronized (this) {
		if (who != null) {
		ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId, parent);
		return admin != null ? Math.max(admin.strongAuthUnlockTimeout,
		MINIMUM_STRONG_AUTH_TIMEOUT_MS)
		: DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS;
		}

		// Return the strictest policy across all participating admins.
		List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userId, parent);

		long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS;
		for (int i = 0; i < admins.size(); i++) {
		strongAuthUnlockTimeout = Math.min(admins.get(i).strongAuthUnlockTimeout,
		strongAuthUnlockTimeout);
		}
		return Math.max(strongAuthUnlockTimeout, MINIMUM_STRONG_AUTH_TIMEOUT_MS);
		}
		}

		@Override
		public void lockNow(boolean parent) {
		if (!mHasFeature) {