Wipe only managed profile when max number of incorrect passwords exceeded (fe0f24cc) · Commits · e / os / android_frameworks_base

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

+8 −5

Original line number	Diff line number	Diff line
		@@ -57,7 +57,7 @@ public class KeyguardSecurityContainer extends FrameLayout implements KeyguardSe
		}

		public KeyguardSecurityContainer(Context context) {
		this(null, null, 0);
		this(context, null, 0);
		}

		public KeyguardSecurityContainer(Context context, AttributeSet attrs, int defStyle) {
		@@ -240,10 +240,13 @@ public class KeyguardSecurityContainer extends FrameLayout implements KeyguardSe

		boolean showTimeout = false;
		if (remainingBeforeWipe < LockPatternUtils.FAILED_ATTEMPTS_BEFORE_WIPE_GRACE) {
		// If we reach this code, it means the user has installed a DevicePolicyManager
		// that requests device wipe after N attempts. Once we get below the grace
		// period, we'll post this dialog every time as a clear warning until the
		// bombshell hits and the device is wiped.
		// The user has installed a DevicePolicyManager that requests a user/profile to be wiped
		// N attempts. Once we get below the grace period, we post this dialog every time as a
		// clear warning until the deletion fires.
		//
		// TODO: Show a different dialog depending on whether the device will be completely
		// wiped (i.e. policy is set for the primary profile of the USER_OWNER) or a single
		// secondary user or managed profile will be removed.
		if (remainingBeforeWipe > 0) {
		showAlmostAtWipeDialog(failedAttempts, remainingBeforeWipe);
		} else {

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

+38 −22

Original line number	Diff line number	Diff line
		@@ -2229,30 +2229,39 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		}
		enforceCrossUserPermission(userHandle);
		synchronized (this) {
		int count = 0;

		if (who != null) {
		ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle);
		return admin != null ? admin.maximumFailedPasswordsForWipe : count;
		ActiveAdmin admin = (who != null) ? getActiveAdminUncheckedLocked(who, userHandle)
		: getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle);
		return admin != null ? admin.maximumFailedPasswordsForWipe : 0;
		}
		}

		// Return strictest policy for this user and profiles that are visible from this user.
		List<UserInfo> profiles = mUserManager.getProfiles(userHandle);
		for (UserInfo userInfo : profiles) {
		/**
		* Returns the admin with the strictest policy on maximum failed passwords for this user and all
		* profiles that are visible from this user. If the policy for the primary and any other profile
		* are equal, it returns the admin for the primary profile.
		* Returns {@code null} if none of them have that policy set.
		*/
		private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked(int userHandle) {
		int count = 0;
		ActiveAdmin strictestAdmin = null;
		for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) {
		DevicePolicyData policy = getUserData(userInfo.getUserHandle().getIdentifier());
		final int N = policy.mAdminList.size();
		for (int i=0; i<N; i++) {
		ActiveAdmin admin = policy.mAdminList.get(i);
		if (count == 0) {
		count = admin.maximumFailedPasswordsForWipe;
		} else if (admin.maximumFailedPasswordsForWipe != 0
		&& count > admin.maximumFailedPasswordsForWipe) {
		count = admin.maximumFailedPasswordsForWipe;
		for (ActiveAdmin admin : policy.mAdminList) {
		if (admin.maximumFailedPasswordsForWipe ==
		ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) {
		continue; // No max number of failed passwords policy set for this profile.
		}

		// We always favor the primary profile if several profiles have the same value set.
		if (count == 0 \|\|
		count > admin.maximumFailedPasswordsForWipe \|\|
		(userInfo.isPrimary() && count >= admin.maximumFailedPasswordsForWipe)) {
		count = admin.maximumFailedPasswordsForWipe;
		strictestAdmin = admin;
		}
		}
		return count;
		}
		return strictestAdmin;
		}

		public boolean resetPassword(String password, int flags, int userHandle) {
		@@ -2627,7 +2636,9 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		public void run() {
		try {
		ActivityManagerNative.getDefault().switchUser(UserHandle.USER_OWNER);
		mUserManager.removeUser(userHandle);
		if (!mUserManager.removeUser(userHandle)) {
		Slog.w(LOG_TAG, "Couldn't remove user " + userHandle);
		}
		} catch (RemoteException re) {
		// Shouldn't happen
		}
		@@ -2751,9 +2762,14 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		policy.mFailedPasswordAttempts++;
		saveSettingsLocked(userHandle);
		if (mHasFeature) {
		int max = getMaximumFailedPasswordsForWipe(null, userHandle);
		ActiveAdmin strictestAdmin =
		getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle);
		int max = strictestAdmin.maximumFailedPasswordsForWipe;
		if (max > 0 && policy.mFailedPasswordAttempts >= max) {
		wipeDeviceOrUserLocked(0, userHandle);
		// Wipe the user/profile associated with the policy that was violated. This
		// is not necessarily calling user: if the policy that fired was from a
		// managed profile rather than the main user profile, we wipe former only.
		wipeDeviceOrUserLocked(0, strictestAdmin.getUserHandle().getIdentifier());
		}
		sendAdminCommandToSelfAndProfilesLocked(
		DeviceAdminReceiver.ACTION_PASSWORD_FAILED,