DO NOT MERGE Fix work profile change race condition in LMS am: 9b0b32bd17 (ce56f60a) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/location/LocationManagerService.java

+53 −22

Original line number	Diff line number	Diff line
		@@ -28,6 +28,9 @@ import static android.os.PowerManager.locationPowerSaveModeToString;

		import static com.android.server.location.CallerIdentity.PERMISSION_COARSE;
		import static com.android.server.location.CallerIdentity.PERMISSION_FINE;
		import static com.android.server.location.UserInfoHelper.UserListener.CURRENT_USER_CHANGED;
		import static com.android.server.location.UserInfoHelper.UserListener.USER_STARTED;
		import static com.android.server.location.UserInfoHelper.UserListener.USER_STOPPED;

		import static java.util.concurrent.TimeUnit.NANOSECONDS;

		@@ -101,7 +104,7 @@ import com.android.server.location.AbstractLocationProvider.State;
		import com.android.server.location.CallerIdentity.PermissionLevel;
		import com.android.server.location.LocationRequestStatistics.PackageProviderKey;
		import com.android.server.location.LocationRequestStatistics.PackageStatistics;
		import com.android.server.location.UserInfoHelper.UserListener;
		import com.android.server.location.UserInfoHelper.UserListener.UserChange;
		import com.android.server.location.gnss.GnssManagerService;
		import com.android.server.pm.permission.PermissionManagerServiceInternal;

		@@ -132,11 +135,13 @@ public class LocationManagerService extends ILocationManager.Stub {
		*/
		public static class Lifecycle extends SystemService {

		private final UserInfoHelper mUserInfoHelper;
		private final LocationManagerService mService;

		public Lifecycle(Context context) {
		super(context);
		mService = new LocationManagerService(context);
		mUserInfoHelper = new SystemUserInfoHelper(context);
		mService = new LocationManagerService(context, mUserInfoHelper);
		}

		@Override
		@@ -161,6 +166,29 @@ public class LocationManagerService extends ILocationManager.Stub {
		mService.onSystemThirdPartyAppsCanStart();
		}
		}

		@Override
		public void onUserStarting(TargetUser user) {
		mUserInfoHelper.dispatchOnUserStarted(user.getUserIdentifier());
		}

		@Override
		public void onUserSwitching(TargetUser from, TargetUser to) {
		mUserInfoHelper.dispatchOnCurrentUserChanged(from.getUserIdentifier(),
		to.getUserIdentifier());
		}

		@Override
		public void onUserStopped(TargetUser user) {
		mUserInfoHelper.dispatchOnUserStopped(user.getUserIdentifier());
		}

		private static class SystemUserInfoHelper extends UserInfoHelper {

		SystemUserInfoHelper(Context context) {
		super(context);
		}
		}
		}

		public static final String TAG = "LocationManagerService";
		@@ -232,7 +260,7 @@ public class LocationManagerService extends ILocationManager.Stub {
		@PowerManager.LocationPowerSaveMode
		private int mBatterySaverMode;

		private LocationManagerService(Context context) {
		private LocationManagerService(Context context, UserInfoHelper userInfoHelper) {
		mContext = context.createAttributionContext(ATTRIBUTION_TAG);
		mHandler = FgThread.getHandler();
		mLocalService = new LocalService();
		@@ -240,7 +268,7 @@ public class LocationManagerService extends ILocationManager.Stub {
		LocalServices.addService(LocationManagerInternal.class, mLocalService);

		mAppOpsHelper = new AppOpsHelper(mContext);
		mUserInfoHelper = new UserInfoHelper(mContext);
		mUserInfoHelper = userInfoHelper;
		mSettingsHelper = new SettingsHelper(mContext, mHandler);
		mAppForegroundHelper = new AppForegroundHelper(mContext);
		mLocationUsageLogger = new LocationUsageLogger();
		@@ -342,7 +370,7 @@ public class LocationManagerService extends ILocationManager.Stub {
		// initialize the current users. we would get the user started notifications for these
		// users eventually anyways, but this takes care of it as early as possible.
		for (int userId: mUserInfoHelper.getCurrentUserIds()) {
		onUserChanged(userId, UserListener.USER_STARTED);
		onUserChanged(userId, USER_STARTED);
		}
		}
		}
		@@ -596,32 +624,23 @@ public class LocationManagerService extends ILocationManager.Stub {
		}
		}

		private void onUserChanged(@UserIdInt int userId, @UserListener.UserChange int change) {
		private void onUserChanged(@UserIdInt int userId, @UserChange int change) {
		switch (change) {
		case UserListener.USER_SWITCHED:
		if (D) {
		Log.d(TAG, "user " + userId + " current status changed");
		}
		case CURRENT_USER_CHANGED:
		synchronized (mLock) {
		for (LocationProviderManager manager : mProviderManagers) {
		manager.onEnabledChangedLocked(userId);
		}
		}
		break;
		case UserListener.USER_STARTED:
		if (D) {
		Log.d(TAG, "user " + userId + " started");
		}
		case USER_STARTED:
		synchronized (mLock) {
		for (LocationProviderManager manager : mProviderManagers) {
		manager.onUserStarted(userId);
		}
		}
		break;
		case UserListener.USER_STOPPED:
		if (D) {
		Log.d(TAG, "user " + userId + " stopped");
		}
		case USER_STOPPED:
		synchronized (mLock) {
		for (LocationProviderManager manager : mProviderManagers) {
		manager.onUserStopped(userId);
		@@ -957,10 +976,22 @@ public class LocationManagerService extends ILocationManager.Stub {
		pw.increaseIndent();

		// for now we only dump for the parent user
		int userId = mUserInfoHelper.getCurrentUserIds()[0];
		int[] userIds = mUserInfoHelper.getCurrentUserIds();
		if (userIds.length == 1) {
		int userId = userIds[0];
		pw.println("last location=" + mLastLocation.get(userId));
		pw.println("last coarse location=" + mLastCoarseLocation.get(userId));
		pw.println("enabled=" + isEnabled(userId));
		} else {
		for (int userId : userIds) {
		pw.println("user " + userId + ":");
		pw.increaseIndent();
		pw.println("last location=" + mLastLocation.get(userId));
		pw.println("last coarse location=" + mLastCoarseLocation.get(userId));
		pw.println("enabled=" + isEnabled(userId));
		pw.decreaseIndent();
		}
		}
		}

		mProvider.dump(fd, pw, args);

services/core/java/com/android/server/location/UserInfoHelper.java

+82 −131

Original line number	Diff line number	Diff line
		@@ -20,48 +20,48 @@ import static android.os.UserManager.DISALLOW_SHARE_LOCATION;

		import static com.android.server.location.LocationManagerService.D;
		import static com.android.server.location.LocationManagerService.TAG;
		import static com.android.server.location.UserInfoHelper.UserListener.CURRENT_USER_CHANGED;
		import static com.android.server.location.UserInfoHelper.UserListener.USER_STARTED;
		import static com.android.server.location.UserInfoHelper.UserListener.USER_STOPPED;

		import android.annotation.CallSuper;
		import android.annotation.IntDef;
		import android.annotation.Nullable;
		import android.annotation.UserIdInt;
		import android.app.ActivityManager;
		import android.content.BroadcastReceiver;
		import android.app.ActivityManagerInternal;
		import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		import android.os.Binder;
		import android.os.Build;
		import android.os.UserHandle;
		import android.os.UserManager;
		import android.util.Log;

		import com.android.internal.annotations.GuardedBy;
		import com.android.internal.util.ArrayUtils;
		import com.android.internal.util.Preconditions;
		import com.android.server.FgThread;
		import com.android.server.LocalServices;

		import java.io.FileDescriptor;
		import java.io.PrintWriter;
		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		import java.util.Arrays;
		import java.util.Objects;
		import java.util.concurrent.CopyOnWriteArrayList;

		/**
		* Provides accessors and listeners for all user info.
		*/
		public class UserInfoHelper {
		public abstract class UserInfoHelper {

		/**
		* Listener for current user changes.
		*/
		public interface UserListener {

		int USER_SWITCHED = 1;
		int CURRENT_USER_CHANGED = 1;
		int USER_STARTED = 2;
		int USER_STOPPED = 3;

		@IntDef({USER_SWITCHED, USER_STARTED, USER_STOPPED})
		@IntDef({CURRENT_USER_CHANGED, USER_STARTED, USER_STOPPED})
		@Retention(RetentionPolicy.SOURCE)
		@interface UserChange {}

		@@ -75,143 +75,101 @@ public class UserInfoHelper {
		private final CopyOnWriteArrayList<UserListener> mListeners;

		@GuardedBy("this")
		@Nullable private UserManager mUserManager;

		@UserIdInt private volatile int mCurrentUserId;

		@GuardedBy("this")
		@UserIdInt private int mCachedParentUserId;
		@Nullable private ActivityManagerInternal mActivityManagerInternal;
		@GuardedBy("this")
		private int[] mCachedProfileUserIds;
		@Nullable private UserManager mUserManager;

		public UserInfoHelper(Context context) {
		mContext = context;
		mListeners = new CopyOnWriteArrayList<>();

		mCurrentUserId = UserHandle.USER_NULL;
		mCachedParentUserId = UserHandle.USER_NULL;
		mCachedProfileUserIds = new int[]{UserHandle.USER_NULL};
		}

		/** Called when system is ready. */
		@CallSuper
		public synchronized void onSystemReady() {
		if (mUserManager != null) {
		if (mActivityManagerInternal != null) {
		return;
		}

		mActivityManagerInternal = Objects.requireNonNull(
		LocalServices.getService(ActivityManagerInternal.class));
		mUserManager = mContext.getSystemService(UserManager.class);

		IntentFilter intentFilter = new IntentFilter();
		intentFilter.addAction(Intent.ACTION_USER_SWITCHED);
		intentFilter.addAction(Intent.ACTION_USER_STARTED);
		intentFilter.addAction(Intent.ACTION_USER_STOPPED);
		intentFilter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED);
		intentFilter.addAction(Intent.ACTION_MANAGED_PROFILE_REMOVED);

		mContext.registerReceiverAsUser(new BroadcastReceiver() {
		@Override
		public void onReceive(Context context, Intent intent) {
		String action = intent.getAction();
		if (action == null) {
		return;
		}
		int userId;
		switch (action) {
		case Intent.ACTION_USER_SWITCHED:
		userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL);
		if (userId != UserHandle.USER_NULL) {
		onCurrentUserChanged(userId);
		}
		break;
		case Intent.ACTION_USER_STARTED:
		userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL);
		if (userId != UserHandle.USER_NULL) {
		onUserStarted(userId);
		}
		break;
		case Intent.ACTION_USER_STOPPED:
		userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL);
		if (userId != UserHandle.USER_NULL) {
		onUserStopped(userId);
		}
		break;
		case Intent.ACTION_MANAGED_PROFILE_ADDED:
		case Intent.ACTION_MANAGED_PROFILE_REMOVED:
		onUserProfilesChanged();
		break;
		}
		}
		}, UserHandle.ALL, intentFilter, null, FgThread.getHandler());

		mCurrentUserId = ActivityManager.getCurrentUser();
		}

		/**
		* Adds a listener for user changed events. Callbacks occur on an unspecified thread.
		*/
		public void addListener(UserListener listener) {
		public final void addListener(UserListener listener) {
		mListeners.add(listener);
		}

		/**
		* Removes a listener for user changed events.
		*/
		public void removeListener(UserListener listener) {
		public final void removeListener(UserListener listener) {
		mListeners.remove(listener);
		}

		private void onCurrentUserChanged(@UserIdInt int newUserId) {
		if (newUserId == mCurrentUserId) {
		return;
		}

		protected void dispatchOnUserStarted(@UserIdInt int userId) {
		if (D) {
		Log.d(TAG, "current user switched from u" + mCurrentUserId + " to u" + newUserId);
		Log.d(TAG, "u" + userId + " started");
		}

		int oldUserId = mCurrentUserId;
		mCurrentUserId = newUserId;

		onUserChanged(oldUserId, UserListener.USER_SWITCHED);
		onUserChanged(newUserId, UserListener.USER_SWITCHED);
		for (UserListener listener : mListeners) {
		listener.onUserChanged(userId, USER_STARTED);
		}
		}

		private void onUserStarted(@UserIdInt int userId) {
		protected void dispatchOnUserStopped(@UserIdInt int userId) {
		if (D) {
		Log.d(TAG, "u" + userId + " started");
		Log.d(TAG, "u" + userId + " stopped");
		}

		onUserChanged(userId, UserListener.USER_STARTED);
		for (UserListener listener : mListeners) {
		listener.onUserChanged(userId, USER_STOPPED);
		}

		private void onUserStopped(@UserIdInt int userId) {
		if (D) {
		Log.d(TAG, "u" + userId + " stopped");
		}

		onUserChanged(userId, UserListener.USER_STOPPED);
		protected void dispatchOnCurrentUserChanged(@UserIdInt int fromUserId,
		@UserIdInt int toUserId) {
		int[] fromUserIds = getProfileIds(fromUserId);
		int[] toUserIds = getProfileIds(toUserId);
		if (D) {
		Log.d(TAG, "current user changed from u" + Arrays.toString(fromUserIds) + " to u"
		+ Arrays.toString(toUserIds));
		}

		private void onUserChanged(@UserIdInt int userId, @UserListener.UserChange int change) {
		for (UserListener listener : mListeners) {
		listener.onUserChanged(userId, change);
		for (int userId : fromUserIds) {
		listener.onUserChanged(userId, CURRENT_USER_CHANGED);
		}
		}

		private synchronized void onUserProfilesChanged() {
		// this intent is only sent to the current user
		if (mCachedParentUserId == mCurrentUserId) {
		mCachedParentUserId = UserHandle.USER_NULL;
		mCachedProfileUserIds = new int[]{UserHandle.USER_NULL};
		for (UserListener listener : mListeners) {
		for (int userId : toUserIds) {
		listener.onUserChanged(userId, CURRENT_USER_CHANGED);
		}
		}
		}

		/**
		* Returns an array of current user ids. This will always include the current user, and will
		* also include any profiles of the current user.
		* also include any profiles of the current user. The caller must never mutate the returned
		* array.
		*/
		public int[] getCurrentUserIds() {
		return getProfileUserIdsForParentUser(mCurrentUserId);
		synchronized (this) {
		if (mActivityManagerInternal == null) {
		return new int[] {};
		}
		}

		long identity = Binder.clearCallingIdentity();
		try {
		return mActivityManagerInternal.getCurrentProfileIds();
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		/**
		@@ -219,54 +177,47 @@ public class UserInfoHelper {
		* user.
		*/
		public boolean isCurrentUserId(@UserIdInt int userId) {
		int currentUserId = mCurrentUserId;
		return userId == currentUserId \|\| ArrayUtils.contains(
		getProfileUserIdsForParentUser(currentUserId), userId);
		synchronized (this) {
		if (mActivityManagerInternal == null) {
		return false;
		}
		}

		@GuardedBy("this")
		private synchronized int[] getProfileUserIdsForParentUser(@UserIdInt int parentUserId) {
		if (parentUserId != mCachedParentUserId) {
		long identity = Binder.clearCallingIdentity();
		try {
		Preconditions.checkState(mUserManager != null);
		return mActivityManagerInternal.isCurrentProfile(userId);
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		// more expensive check - check that argument really is a parent user id
		if (Build.IS_DEBUGGABLE) {
		Preconditions.checkArgument(
		mUserManager.getProfileParent(parentUserId) == null);
		private int[] getProfileIds(@UserIdInt int userId) {
		synchronized (this) {
		Preconditions.checkState(mUserManager != null);
		}

		mCachedParentUserId = parentUserId;
		mCachedProfileUserIds = mUserManager.getProfileIdsWithDisabled(parentUserId);
		long identity = Binder.clearCallingIdentity();
		try {
		return mUserManager.getEnabledProfileIds(userId);
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		return mCachedProfileUserIds;
		}

		/**
		* Dump info for debugging.
		*/
		public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
		boolean systemRunning;
		synchronized (this) {
		systemRunning = mUserManager != null;
		}

		if (systemRunning) {
		int[] currentUserIds = getProfileUserIdsForParentUser(mCurrentUserId);
		pw.println("current users: " + Arrays.toString(currentUserIds));
		for (int userId : currentUserIds) {
		if (mUserManager.hasUserRestrictionForUser(DISALLOW_SHARE_LOCATION,
		int[] currentUserProfiles = getCurrentUserIds();
		pw.println("current users: " + Arrays.toString(currentUserProfiles));
		UserManager userManager = mContext.getSystemService(UserManager.class);
		if (userManager != null) {
		for (int userId : currentUserProfiles) {
		if (userManager.hasUserRestrictionForUser(DISALLOW_SHARE_LOCATION,
		UserHandle.of(userId))) {
		pw.println(" u" + userId + " restricted");
		}
		}
		} else {
		pw.println("current user: " + mCurrentUserId);
		}
		}
		}

services/tests/mockingservicestests/src/com/android/server/location/UserInfoHelperTest.java

+52 −93

File changed.

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