| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License |
| */ |
| |
| package com.android.server.am; |
| |
| import static android.Manifest.permission.INTERACT_ACROSS_USERS; |
| import static android.Manifest.permission.INTERACT_ACROSS_USERS_FULL; |
| import static android.app.ActivityManager.USER_OP_ERROR_IS_SYSTEM; |
| import static android.app.ActivityManager.USER_OP_ERROR_RELATED_USERS_CANNOT_STOP; |
| import static android.app.ActivityManager.USER_OP_IS_CURRENT; |
| import static android.app.ActivityManager.USER_OP_SUCCESS; |
| import static android.content.Context.KEYGUARD_SERVICE; |
| import static android.os.Process.SYSTEM_UID; |
| |
| import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_MU; |
| import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM; |
| import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME; |
| import static com.android.server.am.ActivityManagerService.ALLOW_FULL_ONLY; |
| import static com.android.server.am.ActivityManagerService.ALLOW_NON_FULL; |
| import static com.android.server.am.ActivityManagerService.ALLOW_NON_FULL_IN_PROFILE; |
| import static com.android.server.am.ActivityManagerService.MY_PID; |
| import static com.android.server.am.ActivityManagerService.REPORT_USER_SWITCH_COMPLETE_MSG; |
| import static com.android.server.am.ActivityManagerService.REPORT_USER_SWITCH_MSG; |
| import static com.android.server.am.ActivityManagerService.SYSTEM_USER_CURRENT_MSG; |
| import static com.android.server.am.ActivityManagerService.SYSTEM_USER_START_MSG; |
| import static com.android.server.am.ActivityManagerService.SYSTEM_USER_UNLOCK_MSG; |
| import static com.android.server.am.ActivityManagerService.USER_SWITCH_TIMEOUT_MSG; |
| import static com.android.server.am.UserState.STATE_BOOTING; |
| import static com.android.server.am.UserState.STATE_RUNNING_LOCKED; |
| import static com.android.server.am.UserState.STATE_RUNNING_UNLOCKED; |
| import static com.android.server.am.UserState.STATE_RUNNING_UNLOCKING; |
| |
| import android.annotation.NonNull; |
| import android.annotation.UserIdInt; |
| import android.app.ActivityManager; |
| import android.app.AppOpsManager; |
| import android.app.Dialog; |
| import android.app.IStopUserCallback; |
| import android.app.IUserSwitchObserver; |
| import android.app.KeyguardManager; |
| import android.content.Context; |
| import android.content.IIntentReceiver; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.content.pm.UserInfo; |
| import android.os.BatteryStats; |
| import android.os.Binder; |
| import android.os.Build; |
| import android.os.Bundle; |
| import android.os.Debug; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.IProgressListener; |
| import android.os.IRemoteCallback; |
| import android.os.IUserManager; |
| import android.os.Process; |
| import android.os.RemoteCallbackList; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.os.UserManagerInternal; |
| import android.os.storage.IMountService; |
| import android.os.storage.StorageManager; |
| import android.util.ArraySet; |
| import android.util.IntArray; |
| import android.util.Pair; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.SparseIntArray; |
| |
| import com.android.internal.R; |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.internal.util.ArrayUtils; |
| import com.android.internal.util.Preconditions; |
| import com.android.internal.widget.LockPatternUtils; |
| import com.android.server.LocalServices; |
| import com.android.server.pm.UserManagerService; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| /** |
| * Helper class for {@link ActivityManagerService} responsible for multi-user functionality. |
| */ |
| final class UserController { |
| private static final String TAG = TAG_WITH_CLASS_NAME ? "UserController" : TAG_AM; |
| |
| // Maximum number of users we allow to be running at a time. |
| static final int MAX_RUNNING_USERS = 3; |
| |
| // Amount of time we wait for observers to handle a user switch before |
| // giving up on them and unfreezing the screen. |
| static final int USER_SWITCH_TIMEOUT = 2 * 1000; |
| |
| private final ActivityManagerService mService; |
| private final Handler mHandler; |
| |
| // Holds the current foreground user's id |
| private int mCurrentUserId = UserHandle.USER_SYSTEM; |
| // Holds the target user's id during a user switch |
| private int mTargetUserId = UserHandle.USER_NULL; |
| |
| /** |
| * Which users have been started, so are allowed to run code. |
| */ |
| @GuardedBy("mService") |
| private final SparseArray<UserState> mStartedUsers = new SparseArray<>(); |
| |
| /** |
| * LRU list of history of current users. Most recently current is at the end. |
| */ |
| private final ArrayList<Integer> mUserLru = new ArrayList<>(); |
| |
| /** |
| * Constant array of the users that are currently started. |
| */ |
| private int[] mStartedUserArray = new int[] { 0 }; |
| |
| // If there are multiple profiles for the current user, their ids are here |
| // Currently only the primary user can have managed profiles |
| private int[] mCurrentProfileIds = new int[] {}; |
| |
| /** |
| * Mapping from each known user ID to the profile group ID it is associated with. |
| */ |
| private final SparseIntArray mUserProfileGroupIdsSelfLocked = new SparseIntArray(); |
| |
| /** |
| * Registered observers of the user switching mechanics. |
| */ |
| private final RemoteCallbackList<IUserSwitchObserver> mUserSwitchObservers |
| = new RemoteCallbackList<>(); |
| |
| /** |
| * Currently active user switch callbacks. |
| */ |
| private volatile ArraySet<String> mCurWaitingUserSwitchCallbacks; |
| |
| private volatile UserManagerService mUserManager; |
| |
| private final LockPatternUtils mLockPatternUtils; |
| |
| private UserManagerInternal mUserManagerInternal; |
| |
| UserController(ActivityManagerService service) { |
| mService = service; |
| mHandler = mService.mHandler; |
| // User 0 is the first and only user that runs at boot. |
| final UserState uss = new UserState(UserHandle.SYSTEM); |
| mStartedUsers.put(UserHandle.USER_SYSTEM, uss); |
| mUserLru.add(UserHandle.USER_SYSTEM); |
| mLockPatternUtils = new LockPatternUtils(mService.mContext); |
| updateStartedUserArrayLocked(); |
| } |
| |
| void finishUserSwitch(UserState uss) { |
| synchronized (mService) { |
| finishUserBoot(uss); |
| |
| startProfilesLocked(); |
| stopRunningUsersLocked(MAX_RUNNING_USERS); |
| } |
| } |
| |
| void stopRunningUsersLocked(int maxRunningUsers) { |
| int num = mUserLru.size(); |
| int i = 0; |
| while (num > maxRunningUsers && i < mUserLru.size()) { |
| Integer oldUserId = mUserLru.get(i); |
| UserState oldUss = mStartedUsers.get(oldUserId); |
| if (oldUss == null) { |
| // Shouldn't happen, but be sane if it does. |
| mUserLru.remove(i); |
| num--; |
| continue; |
| } |
| if (oldUss.state == UserState.STATE_STOPPING |
| || oldUss.state == UserState.STATE_SHUTDOWN) { |
| // This user is already stopping, doesn't count. |
| num--; |
| i++; |
| continue; |
| } |
| if (oldUserId == UserHandle.USER_SYSTEM || oldUserId == mCurrentUserId) { |
| // Owner/System user and current user can't be stopped. We count it as running |
| // when it is not a pure system user. |
| if (UserInfo.isSystemOnly(oldUserId)) { |
| num--; |
| } |
| i++; |
| continue; |
| } |
| // This is a user to be stopped. |
| if (stopUsersLocked(oldUserId, false, null) != USER_OP_SUCCESS) { |
| num--; |
| } |
| num--; |
| i++; |
| } |
| } |
| |
| private void finishUserBoot(UserState uss) { |
| finishUserBoot(uss, null); |
| } |
| |
| private void finishUserBoot(UserState uss, IIntentReceiver resultTo) { |
| final int userId = uss.mHandle.getIdentifier(); |
| |
| Slog.d(TAG, "Finishing user boot " + userId); |
| synchronized (mService) { |
| // Bail if we ended up with a stale user |
| if (mStartedUsers.get(userId) != uss) return; |
| |
| // We always walk through all the user lifecycle states to send |
| // consistent developer events. We step into RUNNING_LOCKED here, |
| // but we might immediately step into RUNNING below if the user |
| // storage is already unlocked. |
| if (uss.setState(STATE_BOOTING, STATE_RUNNING_LOCKED)) { |
| getUserManagerInternal().setUserState(userId, uss.state); |
| |
| int uptimeSeconds = (int)(SystemClock.elapsedRealtime() / 1000); |
| MetricsLogger.histogram(mService.mContext, "framework_locked_boot_completed", |
| uptimeSeconds); |
| |
| Intent intent = new Intent(Intent.ACTION_LOCKED_BOOT_COMPLETED, null); |
| intent.putExtra(Intent.EXTRA_USER_HANDLE, userId); |
| intent.addFlags(Intent.FLAG_RECEIVER_NO_ABORT |
| | Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); |
| mService.broadcastIntentLocked(null, null, intent, null, resultTo, 0, null, null, |
| new String[] { android.Manifest.permission.RECEIVE_BOOT_COMPLETED }, |
| AppOpsManager.OP_NONE, null, true, false, MY_PID, SYSTEM_UID, userId); |
| } |
| |
| // We need to delay unlocking managed profiles until the parent user |
| // is also unlocked. |
| if (getUserManager().isManagedProfile(userId)) { |
| final UserInfo parent = getUserManager().getProfileParent(userId); |
| if (parent != null |
| && isUserRunningLocked(parent.id, ActivityManager.FLAG_AND_UNLOCKED)) { |
| Slog.d(TAG, "User " + userId + " (parent " + parent.id |
| + "): attempting unlock because parent is unlocked"); |
| maybeUnlockUser(userId); |
| } else { |
| String parentId = (parent == null) ? "<null>" : String.valueOf(parent.id); |
| Slog.d(TAG, "User " + userId + " (parent " + parentId |
| + "): delaying unlock because parent is locked"); |
| } |
| } else { |
| maybeUnlockUser(userId); |
| } |
| } |
| } |
| |
| /** |
| * Step from {@link UserState#STATE_RUNNING_LOCKED} to |
| * {@link UserState#STATE_RUNNING_UNLOCKING}. |
| */ |
| private void finishUserUnlocking(final UserState uss) { |
| final int userId = uss.mHandle.getIdentifier(); |
| boolean proceedWithUnlock = false; |
| synchronized (mService) { |
| // Bail if we ended up with a stale user |
| if (mStartedUsers.get(uss.mHandle.getIdentifier()) != uss) return; |
| |
| // Only keep marching forward if user is actually unlocked |
| if (!StorageManager.isUserKeyUnlocked(userId)) return; |
| |
| if (uss.setState(STATE_RUNNING_LOCKED, STATE_RUNNING_UNLOCKING)) { |
| getUserManagerInternal().setUserState(userId, uss.state); |
| proceedWithUnlock = true; |
| } |
| } |
| |
| if (proceedWithUnlock) { |
| uss.mUnlockProgress.start(); |
| |
| // Prepare app storage before we go any further |
| uss.mUnlockProgress.setProgress(5, |
| mService.mContext.getString(R.string.android_start_title)); |
| mUserManager.onBeforeUnlockUser(userId); |
| uss.mUnlockProgress.setProgress(20); |
| |
| // Dispatch unlocked to system services; when fully dispatched, |
| // that calls through to the next "unlocked" phase |
| mHandler.obtainMessage(SYSTEM_USER_UNLOCK_MSG, userId, 0, uss) |
| .sendToTarget(); |
| } |
| } |
| |
| /** |
| * Step from {@link UserState#STATE_RUNNING_UNLOCKING} to |
| * {@link UserState#STATE_RUNNING_UNLOCKED}. |
| */ |
| void finishUserUnlocked(final UserState uss) { |
| final int userId = uss.mHandle.getIdentifier(); |
| synchronized (mService) { |
| // Bail if we ended up with a stale user |
| if (mStartedUsers.get(uss.mHandle.getIdentifier()) != uss) return; |
| |
| // Only keep marching forward if user is actually unlocked |
| if (!StorageManager.isUserKeyUnlocked(userId)) return; |
| |
| if (uss.setState(STATE_RUNNING_UNLOCKING, STATE_RUNNING_UNLOCKED)) { |
| getUserManagerInternal().setUserState(userId, uss.state); |
| uss.mUnlockProgress.finish(); |
| |
| // Dispatch unlocked to external apps |
| final Intent unlockedIntent = new Intent(Intent.ACTION_USER_UNLOCKED); |
| unlockedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); |
| unlockedIntent.addFlags( |
| Intent.FLAG_RECEIVER_REGISTERED_ONLY | Intent.FLAG_RECEIVER_FOREGROUND); |
| mService.broadcastIntentLocked(null, null, unlockedIntent, null, null, 0, null, |
| null, null, AppOpsManager.OP_NONE, null, false, false, MY_PID, SYSTEM_UID, |
| userId); |
| |
| if (getUserInfo(userId).isManagedProfile()) { |
| UserInfo parent = getUserManager().getProfileParent(userId); |
| if (parent != null) { |
| final Intent profileUnlockedIntent = new Intent( |
| Intent.ACTION_MANAGED_PROFILE_UNLOCKED); |
| profileUnlockedIntent.putExtra(Intent.EXTRA_USER, UserHandle.of(userId)); |
| profileUnlockedIntent.addFlags( |
| Intent.FLAG_RECEIVER_REGISTERED_ONLY |
| | Intent.FLAG_RECEIVER_FOREGROUND); |
| mService.broadcastIntentLocked(null, null, profileUnlockedIntent, |
| null, null, 0, null, null, null, AppOpsManager.OP_NONE, |
| null, false, false, MY_PID, SYSTEM_UID, |
| parent.id); |
| } |
| } |
| |
| // Send PRE_BOOT broadcasts if user fingerprint changed; we |
| // purposefully block sending BOOT_COMPLETED until after all |
| // PRE_BOOT receivers are finished to avoid ANR'ing apps |
| final UserInfo info = getUserInfo(userId); |
| if (!Objects.equals(info.lastLoggedInFingerprint, Build.FINGERPRINT)) { |
| // Suppress double notifications for managed profiles that |
| // were unlocked automatically as part of their parent user |
| // being unlocked. |
| final boolean quiet; |
| if (info.isManagedProfile()) { |
| quiet = !uss.tokenProvided |
| || !mLockPatternUtils.isSeparateProfileChallengeEnabled(userId); |
| } else { |
| quiet = false; |
| } |
| new PreBootBroadcaster(mService, userId, null, quiet) { |
| @Override |
| public void onFinished() { |
| finishUserUnlockedCompleted(uss); |
| } |
| }.sendNext(); |
| } else { |
| finishUserUnlockedCompleted(uss); |
| } |
| } |
| } |
| } |
| |
| private void finishUserUnlockedCompleted(UserState uss) { |
| final int userId = uss.mHandle.getIdentifier(); |
| synchronized (mService) { |
| // Bail if we ended up with a stale user |
| if (mStartedUsers.get(uss.mHandle.getIdentifier()) != uss) return; |
| final UserInfo userInfo = getUserInfo(userId); |
| if (userInfo == null) { |
| return; |
| } |
| |
| // Only keep marching forward if user is actually unlocked |
| if (!StorageManager.isUserKeyUnlocked(userId)) return; |
| |
| // Remember that we logged in |
| mUserManager.onUserLoggedIn(userId); |
| |
| if (!userInfo.isInitialized()) { |
| if (userId != UserHandle.USER_SYSTEM) { |
| Slog.d(TAG, "Initializing user #" + userId); |
| Intent intent = new Intent(Intent.ACTION_USER_INITIALIZE); |
| intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); |
| mService.broadcastIntentLocked(null, null, intent, null, |
| new IIntentReceiver.Stub() { |
| @Override |
| public void performReceive(Intent intent, int resultCode, |
| String data, Bundle extras, boolean ordered, |
| boolean sticky, int sendingUser) { |
| // Note: performReceive is called with mService lock held |
| getUserManager().makeInitialized(userInfo.id); |
| } |
| }, 0, null, null, null, AppOpsManager.OP_NONE, |
| null, true, false, MY_PID, SYSTEM_UID, userId); |
| } |
| } |
| |
| Slog.d(TAG, "Sending BOOT_COMPLETE user #" + userId); |
| int uptimeSeconds = (int)(SystemClock.elapsedRealtime() / 1000); |
| MetricsLogger.histogram(mService.mContext, "framework_boot_completed", uptimeSeconds); |
| final Intent bootIntent = new Intent(Intent.ACTION_BOOT_COMPLETED, null); |
| bootIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); |
| bootIntent.addFlags(Intent.FLAG_RECEIVER_NO_ABORT |
| | Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); |
| mService.broadcastIntentLocked(null, null, bootIntent, null, null, 0, null, null, |
| new String[] { android.Manifest.permission.RECEIVE_BOOT_COMPLETED }, |
| AppOpsManager.OP_NONE, null, true, false, MY_PID, SYSTEM_UID, userId); |
| } |
| } |
| |
| int stopUser(final int userId, final boolean force, final IStopUserCallback callback) { |
| if (mService.checkCallingPermission(INTERACT_ACROSS_USERS_FULL) |
| != PackageManager.PERMISSION_GRANTED) { |
| String msg = "Permission Denial: switchUser() from pid=" |
| + Binder.getCallingPid() |
| + ", uid=" + Binder.getCallingUid() |
| + " requires " + INTERACT_ACROSS_USERS_FULL; |
| Slog.w(TAG, msg); |
| throw new SecurityException(msg); |
| } |
| if (userId < 0 || userId == UserHandle.USER_SYSTEM) { |
| throw new IllegalArgumentException("Can't stop system user " + userId); |
| } |
| mService.enforceShellRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, |
| userId); |
| synchronized (mService) { |
| return stopUsersLocked(userId, force, callback); |
| } |
| } |
| |
| /** |
| * Stops the user along with its related users. The method calls |
| * {@link #getUsersToStopLocked(int)} to determine the list of users that should be stopped. |
| */ |
| private int stopUsersLocked(final int userId, boolean force, final IStopUserCallback callback) { |
| if (userId == UserHandle.USER_SYSTEM) { |
| return USER_OP_ERROR_IS_SYSTEM; |
| } |
| if (isCurrentUserLocked(userId)) { |
| return USER_OP_IS_CURRENT; |
| } |
| int[] usersToStop = getUsersToStopLocked(userId); |
| // If one of related users is system or current, no related users should be stopped |
| for (int i = 0; i < usersToStop.length; i++) { |
| int relatedUserId = usersToStop[i]; |
| if ((UserHandle.USER_SYSTEM == relatedUserId) || isCurrentUserLocked(relatedUserId)) { |
| if (DEBUG_MU) Slog.i(TAG, "stopUsersLocked cannot stop related user " |
| + relatedUserId); |
| // We still need to stop the requested user if it's a force stop. |
| if (force) { |
| Slog.i(TAG, |
| "Force stop user " + userId + ". Related users will not be stopped"); |
| stopSingleUserLocked(userId, callback); |
| return USER_OP_SUCCESS; |
| } |
| return USER_OP_ERROR_RELATED_USERS_CANNOT_STOP; |
| } |
| } |
| if (DEBUG_MU) Slog.i(TAG, "stopUsersLocked usersToStop=" + Arrays.toString(usersToStop)); |
| for (int userIdToStop : usersToStop) { |
| stopSingleUserLocked(userIdToStop, userIdToStop == userId ? callback : null); |
| } |
| return USER_OP_SUCCESS; |
| } |
| |
| private void stopSingleUserLocked(final int userId, final IStopUserCallback callback) { |
| if (DEBUG_MU) Slog.i(TAG, "stopSingleUserLocked userId=" + userId); |
| final UserState uss = mStartedUsers.get(userId); |
| if (uss == null) { |
| // User is not started, nothing to do... but we do need to |
| // callback if requested. |
| if (callback != null) { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| callback.userStopped(userId); |
| } catch (RemoteException e) { |
| } |
| } |
| }); |
| } |
| return; |
| } |
| |
| if (callback != null) { |
| uss.mStopCallbacks.add(callback); |
| } |
| |
| if (uss.state != UserState.STATE_STOPPING |
| && uss.state != UserState.STATE_SHUTDOWN) { |
| uss.setState(UserState.STATE_STOPPING); |
| getUserManagerInternal().setUserState(userId, uss.state); |
| updateStartedUserArrayLocked(); |
| |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| // We are going to broadcast ACTION_USER_STOPPING and then |
| // once that is done send a final ACTION_SHUTDOWN and then |
| // stop the user. |
| final Intent stoppingIntent = new Intent(Intent.ACTION_USER_STOPPING); |
| stoppingIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); |
| stoppingIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); |
| stoppingIntent.putExtra(Intent.EXTRA_SHUTDOWN_USERSPACE_ONLY, true); |
| // This is the result receiver for the initial stopping broadcast. |
| final IIntentReceiver stoppingReceiver = new IIntentReceiver.Stub() { |
| @Override |
| public void performReceive(Intent intent, int resultCode, String data, |
| Bundle extras, boolean ordered, boolean sticky, int sendingUser) { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| finishUserStopping(userId, uss); |
| } |
| }); |
| } |
| }; |
| // Clear broadcast queue for the user to avoid delivering stale broadcasts |
| mService.clearBroadcastQueueForUserLocked(userId); |
| // Kick things off. |
| mService.broadcastIntentLocked(null, null, stoppingIntent, |
| null, stoppingReceiver, 0, null, null, |
| new String[]{INTERACT_ACROSS_USERS}, AppOpsManager.OP_NONE, |
| null, true, false, MY_PID, SYSTEM_UID, UserHandle.USER_ALL); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| void finishUserStopping(final int userId, final UserState uss) { |
| // On to the next. |
| final Intent shutdownIntent = new Intent(Intent.ACTION_SHUTDOWN); |
| // This is the result receiver for the final shutdown broadcast. |
| final IIntentReceiver shutdownReceiver = new IIntentReceiver.Stub() { |
| @Override |
| public void performReceive(Intent intent, int resultCode, String data, |
| Bundle extras, boolean ordered, boolean sticky, int sendingUser) { |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| finishUserStopped(uss); |
| } |
| }); |
| } |
| }; |
| |
| synchronized (mService) { |
| if (uss.state != UserState.STATE_STOPPING) { |
| // Whoops, we are being started back up. Abort, abort! |
| return; |
| } |
| uss.setState(UserState.STATE_SHUTDOWN); |
| } |
| getUserManagerInternal().setUserState(userId, uss.state); |
| |
| mService.mBatteryStatsService.noteEvent( |
| BatteryStats.HistoryItem.EVENT_USER_RUNNING_FINISH, |
| Integer.toString(userId), userId); |
| mService.mSystemServiceManager.stopUser(userId); |
| |
| synchronized (mService) { |
| mService.broadcastIntentLocked(null, null, shutdownIntent, |
| null, shutdownReceiver, 0, null, null, null, |
| AppOpsManager.OP_NONE, |
| null, true, false, MY_PID, SYSTEM_UID, userId); |
| } |
| } |
| |
| void finishUserStopped(UserState uss) { |
| final int userId = uss.mHandle.getIdentifier(); |
| boolean stopped; |
| ArrayList<IStopUserCallback> callbacks; |
| synchronized (mService) { |
| callbacks = new ArrayList<>(uss.mStopCallbacks); |
| if (mStartedUsers.get(userId) != uss) { |
| stopped = false; |
| } else if (uss.state != UserState.STATE_SHUTDOWN) { |
| stopped = false; |
| } else { |
| stopped = true; |
| // User can no longer run. |
| mStartedUsers.remove(userId); |
| getUserManagerInternal().removeUserState(userId); |
| mUserLru.remove(Integer.valueOf(userId)); |
| updateStartedUserArrayLocked(); |
| |
| mService.onUserStoppedLocked(userId); |
| // Clean up all state and processes associated with the user. |
| // Kill all the processes for the user. |
| forceStopUserLocked(userId, "finish user"); |
| } |
| } |
| |
| for (int i = 0; i < callbacks.size(); i++) { |
| try { |
| if (stopped) callbacks.get(i).userStopped(userId); |
| else callbacks.get(i).userStopAborted(userId); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| if (stopped) { |
| mService.mSystemServiceManager.cleanupUser(userId); |
| synchronized (mService) { |
| mService.mStackSupervisor.removeUserLocked(userId); |
| } |
| // Remove the user if it is ephemeral. |
| if (getUserInfo(userId).isEphemeral()) { |
| mUserManager.removeUser(userId); |
| } |
| } |
| } |
| |
| /** |
| * Determines the list of users that should be stopped together with the specified |
| * {@code userId}. The returned list includes {@code userId}. |
| */ |
| private @NonNull int[] getUsersToStopLocked(int userId) { |
| int startedUsersSize = mStartedUsers.size(); |
| IntArray userIds = new IntArray(); |
| userIds.add(userId); |
| synchronized (mUserProfileGroupIdsSelfLocked) { |
| int userGroupId = mUserProfileGroupIdsSelfLocked.get(userId, |
| UserInfo.NO_PROFILE_GROUP_ID); |
| for (int i = 0; i < startedUsersSize; i++) { |
| UserState uss = mStartedUsers.valueAt(i); |
| int startedUserId = uss.mHandle.getIdentifier(); |
| // Skip unrelated users (profileGroupId mismatch) |
| int startedUserGroupId = mUserProfileGroupIdsSelfLocked.get(startedUserId, |
| UserInfo.NO_PROFILE_GROUP_ID); |
| boolean sameGroup = (userGroupId != UserInfo.NO_PROFILE_GROUP_ID) |
| && (userGroupId == startedUserGroupId); |
| // userId has already been added |
| boolean sameUserId = startedUserId == userId; |
| if (!sameGroup || sameUserId) { |
| continue; |
| } |
| userIds.add(startedUserId); |
| } |
| } |
| return userIds.toArray(); |
| } |
| |
| private void forceStopUserLocked(int userId, String reason) { |
| mService.forceStopPackageLocked(null, -1, false, false, true, false, false, |
| userId, reason); |
| Intent intent = new Intent(Intent.ACTION_USER_STOPPED); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY |
| | Intent.FLAG_RECEIVER_FOREGROUND); |
| intent.putExtra(Intent.EXTRA_USER_HANDLE, userId); |
| mService.broadcastIntentLocked(null, null, intent, |
| null, null, 0, null, null, null, AppOpsManager.OP_NONE, |
| null, false, false, MY_PID, SYSTEM_UID, UserHandle.USER_ALL); |
| } |
| |
| /** |
| * Stops the guest or ephemeral user if it has gone to the background. |
| */ |
| private void stopGuestOrEphemeralUserIfBackground() { |
| synchronized (mService) { |
| final int num = mUserLru.size(); |
| for (int i = 0; i < num; i++) { |
| Integer oldUserId = mUserLru.get(i); |
| UserState oldUss = mStartedUsers.get(oldUserId); |
| if (oldUserId == UserHandle.USER_SYSTEM || oldUserId == mCurrentUserId |
| || oldUss.state == UserState.STATE_STOPPING |
| || oldUss.state == UserState.STATE_SHUTDOWN) { |
| continue; |
| } |
| UserInfo userInfo = getUserInfo(oldUserId); |
| if (userInfo.isEphemeral()) { |
| LocalServices.getService(UserManagerInternal.class) |
| .onEphemeralUserStop(oldUserId); |
| } |
| if (userInfo.isGuest() || userInfo.isEphemeral()) { |
| // This is a user to be stopped. |
| stopUsersLocked(oldUserId, true, null); |
| break; |
| } |
| } |
| } |
| } |
| |
| void startProfilesLocked() { |
| if (DEBUG_MU) Slog.i(TAG, "startProfilesLocked"); |
| List<UserInfo> profiles = getUserManager().getProfiles( |
| mCurrentUserId, false /* enabledOnly */); |
| List<UserInfo> profilesToStart = new ArrayList<>(profiles.size()); |
| for (UserInfo user : profiles) { |
| if ((user.flags & UserInfo.FLAG_INITIALIZED) == UserInfo.FLAG_INITIALIZED |
| && user.id != mCurrentUserId && !user.isQuietModeEnabled()) { |
| profilesToStart.add(user); |
| } |
| } |
| final int profilesToStartSize = profilesToStart.size(); |
| int i = 0; |
| for (; i < profilesToStartSize && i < (MAX_RUNNING_USERS - 1); ++i) { |
| startUser(profilesToStart.get(i).id, /* foreground= */ false); |
| } |
| if (i < profilesToStartSize) { |
| Slog.w(TAG, "More profiles than MAX_RUNNING_USERS"); |
| } |
| } |
| |
| private UserManagerService getUserManager() { |
| UserManagerService userManager = mUserManager; |
| if (userManager == null) { |
| IBinder b = ServiceManager.getService(Context.USER_SERVICE); |
| userManager = mUserManager = (UserManagerService) IUserManager.Stub.asInterface(b); |
| } |
| return userManager; |
| } |
| |
| private IMountService getMountService() { |
| return IMountService.Stub.asInterface(ServiceManager.getService("mount")); |
| } |
| |
| /** |
| * Start user, if its not already running. |
| * <p>The user will be brought to the foreground, if {@code foreground} parameter is set. |
| * When starting the user, multiple intents will be broadcast in the following order:</p> |
| * <ul> |
| * <li>{@link Intent#ACTION_USER_STARTED} - sent to registered receivers of the new user |
| * <li>{@link Intent#ACTION_USER_BACKGROUND} - sent to registered receivers of the outgoing |
| * user and all profiles of this user. Sent only if {@code foreground} parameter is true |
| * <li>{@link Intent#ACTION_USER_FOREGROUND} - sent to registered receivers of the new |
| * user and all profiles of this user. Sent only if {@code foreground} parameter is true |
| * <li>{@link Intent#ACTION_USER_SWITCHED} - sent to registered receivers of the new user. |
| * Sent only if {@code foreground} parameter is true |
| * <li>{@link Intent#ACTION_USER_STARTING} - ordered broadcast sent to registered receivers |
| * of the new fg user |
| * <li>{@link Intent#ACTION_LOCKED_BOOT_COMPLETED} - ordered broadcast sent to receivers of |
| * the new user |
| * <li>{@link Intent#ACTION_USER_UNLOCKED} - sent to registered receivers of the new user |
| * <li>{@link Intent#ACTION_PRE_BOOT_COMPLETED} - ordered broadcast sent to receivers of the |
| * new user. Sent only when the user is booting after a system update. |
| * <li>{@link Intent#ACTION_USER_INITIALIZE} - ordered broadcast sent to receivers of the |
| * new user. Sent only the first time a user is starting. |
| * <li>{@link Intent#ACTION_BOOT_COMPLETED} - ordered broadcast sent to receivers of the new |
| * user. Indicates that the user has finished booting. |
| * </ul> |
| * |
| * @param userId ID of the user to start |
| * @param foreground true if user should be brought to the foreground |
| * @return true if the user has been successfully started |
| */ |
| boolean startUser(final int userId, final boolean foreground) { |
| if (mService.checkCallingPermission(INTERACT_ACROSS_USERS_FULL) |
| != PackageManager.PERMISSION_GRANTED) { |
| String msg = "Permission Denial: switchUser() from pid=" |
| + Binder.getCallingPid() |
| + ", uid=" + Binder.getCallingUid() |
| + " requires " + INTERACT_ACROSS_USERS_FULL; |
| Slog.w(TAG, msg); |
| throw new SecurityException(msg); |
| } |
| |
| Slog.i(TAG, "Starting userid:" + userId + " fg:" + foreground); |
| |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| synchronized (mService) { |
| final int oldUserId = mCurrentUserId; |
| if (oldUserId == userId) { |
| return true; |
| } |
| |
| mService.mStackSupervisor.setLockTaskModeLocked(null, |
| ActivityManager.LOCK_TASK_MODE_NONE, "startUser", false); |
| |
| final UserInfo userInfo = getUserInfo(userId); |
| if (userInfo == null) { |
| Slog.w(TAG, "No user info for user #" + userId); |
| return false; |
| } |
| if (foreground && userInfo.isManagedProfile()) { |
| Slog.w(TAG, "Cannot switch to User #" + userId + ": not a full user"); |
| return false; |
| } |
| |
| if (foreground) { |
| mService.mWindowManager.startFreezingScreen( |
| R.anim.screen_user_exit, R.anim.screen_user_enter); |
| } |
| |
| boolean needStart = false; |
| |
| // If the user we are switching to is not currently started, then |
| // we need to start it now. |
| if (mStartedUsers.get(userId) == null) { |
| UserState userState = new UserState(UserHandle.of(userId)); |
| mStartedUsers.put(userId, userState); |
| getUserManagerInternal().setUserState(userId, userState.state); |
| updateStartedUserArrayLocked(); |
| needStart = true; |
| } |
| |
| final UserState uss = mStartedUsers.get(userId); |
| final Integer userIdInt = userId; |
| mUserLru.remove(userIdInt); |
| mUserLru.add(userIdInt); |
| |
| if (foreground) { |
| mCurrentUserId = userId; |
| mService.updateUserConfigurationLocked(); |
| mTargetUserId = UserHandle.USER_NULL; // reset, mCurrentUserId has caught up |
| updateCurrentProfileIdsLocked(); |
| mService.mWindowManager.setCurrentUser(userId, mCurrentProfileIds); |
| // Once the internal notion of the active user has switched, we lock the device |
| // with the option to show the user switcher on the keyguard. |
| mService.mWindowManager.lockNow(null); |
| } else { |
| final Integer currentUserIdInt = mCurrentUserId; |
| updateCurrentProfileIdsLocked(); |
| mService.mWindowManager.setCurrentProfileIds(mCurrentProfileIds); |
| mUserLru.remove(currentUserIdInt); |
| mUserLru.add(currentUserIdInt); |
| } |
| |
| // Make sure user is in the started state. If it is currently |
| // stopping, we need to knock that off. |
| if (uss.state == UserState.STATE_STOPPING) { |
| // If we are stopping, we haven't sent ACTION_SHUTDOWN, |
| // so we can just fairly silently bring the user back from |
| // the almost-dead. |
| uss.setState(uss.lastState); |
| getUserManagerInternal().setUserState(userId, uss.state); |
| updateStartedUserArrayLocked(); |
| needStart = true; |
| } else if (uss.state == UserState.STATE_SHUTDOWN) { |
| // This means ACTION_SHUTDOWN has been sent, so we will |
| // need to treat this as a new boot of the user. |
| uss.setState(UserState.STATE_BOOTING); |
| getUserManagerInternal().setUserState(userId, uss.state); |
| updateStartedUserArrayLocked(); |
| needStart = true; |
| } |
| |
| if (uss.state == UserState.STATE_BOOTING) { |
| // Give user manager a chance to propagate user restrictions |
| // to other services and prepare app storage |
| getUserManager().onBeforeStartUser(userId); |
| |
| // Booting up a new user, need to tell system services about it. |
| // Note that this is on the same handler as scheduling of broadcasts, |
| // which is important because it needs to go first. |
| mHandler.sendMessage(mHandler.obtainMessage(SYSTEM_USER_START_MSG, userId, 0)); |
| } |
| |
| if (foreground) { |
| mHandler.sendMessage(mHandler.obtainMessage(SYSTEM_USER_CURRENT_MSG, userId, |
| oldUserId)); |
| mHandler.removeMessages(REPORT_USER_SWITCH_MSG); |
| mHandler.removeMessages(USER_SWITCH_TIMEOUT_MSG); |
| mHandler.sendMessage(mHandler.obtainMessage(REPORT_USER_SWITCH_MSG, |
| oldUserId, userId, uss)); |
| mHandler.sendMessageDelayed(mHandler.obtainMessage(USER_SWITCH_TIMEOUT_MSG, |
| oldUserId, userId, uss), USER_SWITCH_TIMEOUT); |
| } |
| |
| if (needStart) { |
| // Send USER_STARTED broadcast |
| Intent intent = new Intent(Intent.ACTION_USER_STARTED); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY |
| | Intent.FLAG_RECEIVER_FOREGROUND); |
| intent.putExtra(Intent.EXTRA_USER_HANDLE, userId); |
| mService.broadcastIntentLocked(null, null, intent, |
| null, null, 0, null, null, null, AppOpsManager.OP_NONE, |
| null, false, false, MY_PID, SYSTEM_UID, userId); |
| } |
| |
| if (foreground) { |
| moveUserToForegroundLocked(uss, oldUserId, userId); |
| } else { |
| mService.mUserController.finishUserBoot(uss); |
| } |
| |
| if (needStart) { |
| Intent intent = new Intent(Intent.ACTION_USER_STARTING); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); |
| intent.putExtra(Intent.EXTRA_USER_HANDLE, userId); |
| mService.broadcastIntentLocked(null, null, intent, |
| null, new IIntentReceiver.Stub() { |
| @Override |
| public void performReceive(Intent intent, int resultCode, |
| String data, Bundle extras, boolean ordered, boolean sticky, |
| int sendingUser) throws RemoteException { |
| } |
| }, 0, null, null, |
| new String[] {INTERACT_ACROSS_USERS}, AppOpsManager.OP_NONE, |
| null, true, false, MY_PID, SYSTEM_UID, UserHandle.USER_ALL); |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Start user, if its not already running, and bring it to foreground. |
| */ |
| boolean startUserInForeground(final int userId, Dialog dlg) { |
| boolean result = startUser(userId, /* foreground */ true); |
| dlg.dismiss(); |
| return result; |
| } |
| |
| boolean unlockUser(final int userId, byte[] token, byte[] secret, IProgressListener listener) { |
| if (mService.checkCallingPermission(INTERACT_ACROSS_USERS_FULL) |
| != PackageManager.PERMISSION_GRANTED) { |
| String msg = "Permission Denial: unlockUser() from pid=" |
| + Binder.getCallingPid() |
| + ", uid=" + Binder.getCallingUid() |
| + " requires " + INTERACT_ACROSS_USERS_FULL; |
| Slog.w(TAG, msg); |
| throw new SecurityException(msg); |
| } |
| |
| final long binderToken = Binder.clearCallingIdentity(); |
| try { |
| return unlockUserCleared(userId, token, secret, listener); |
| } finally { |
| Binder.restoreCallingIdentity(binderToken); |
| } |
| } |
| |
| /** |
| * Attempt to unlock user without a credential token. This typically |
| * succeeds when the device doesn't have credential-encrypted storage, or |
| * when the the credential-encrypted storage isn't tied to a user-provided |
| * PIN or pattern. |
| */ |
| boolean maybeUnlockUser(final int userId) { |
| // Try unlocking storage using empty token |
| return unlockUserCleared(userId, null, null, null); |
| } |
| |
| private static void notifyFinished(int userId, IProgressListener listener) { |
| if (listener == null) return; |
| try { |
| listener.onFinished(userId, null); |
| } catch (RemoteException ignored) { |
| } |
| } |
| |
| boolean unlockUserCleared(final int userId, byte[] token, byte[] secret, |
| IProgressListener listener) { |
| UserState uss; |
| synchronized (mService) { |
| // TODO Move this block outside of synchronized if it causes lock contention |
| if (!StorageManager.isUserKeyUnlocked(userId)) { |
| final UserInfo userInfo = getUserInfo(userId); |
| final IMountService mountService = getMountService(); |
| try { |
| // We always want to unlock user storage, even user is not started yet |
| mountService.unlockUserKey(userId, userInfo.serialNumber, token, secret); |
| } catch (RemoteException | RuntimeException e) { |
| Slog.w(TAG, "Failed to unlock: " + e.getMessage()); |
| } |
| } |
| // Bail if user isn't actually running, otherwise register the given |
| // listener to watch for unlock progress |
| uss = mStartedUsers.get(userId); |
| if (uss == null) { |
| notifyFinished(userId, listener); |
| return false; |
| } else { |
| uss.mUnlockProgress.addListener(listener); |
| uss.tokenProvided = (token != null); |
| } |
| } |
| |
| finishUserUnlocking(uss); |
| |
| final ArraySet<Integer> childProfilesToUnlock = new ArraySet<>(); |
| synchronized (mService) { |
| |
| // We just unlocked a user, so let's now attempt to unlock any |
| // managed profiles under that user. |
| for (int i = 0; i < mStartedUsers.size(); i++) { |
| final int testUserId = mStartedUsers.keyAt(i); |
| final UserInfo parent = getUserManager().getProfileParent(testUserId); |
| if (parent != null && parent.id == userId && testUserId != userId) { |
| Slog.d(TAG, "User " + testUserId + " (parent " + parent.id |
| + "): attempting unlock because parent was just unlocked"); |
| childProfilesToUnlock.add(testUserId); |
| } |
| } |
| } |
| |
| final int size = childProfilesToUnlock.size(); |
| for (int i = 0; i < size; i++) { |
| maybeUnlockUser(childProfilesToUnlock.valueAt(i)); |
| } |
| |
| return true; |
| } |
| |
| void showUserSwitchDialog(Pair<UserInfo, UserInfo> fromToUserPair) { |
| // The dialog will show and then initiate the user switch by calling startUserInForeground |
| Dialog d = new UserSwitchingDialog(mService, mService.mContext, fromToUserPair.first, |
| fromToUserPair.second, true /* above system */); |
| d.show(); |
| } |
| |
| void dispatchForegroundProfileChanged(int userId) { |
| final int observerCount = mUserSwitchObservers.beginBroadcast(); |
| for (int i = 0; i < observerCount; i++) { |
| try { |
| mUserSwitchObservers.getBroadcastItem(i).onForegroundProfileSwitch(userId); |
| } catch (RemoteException e) { |
| // Ignore |
| } |
| } |
| mUserSwitchObservers.finishBroadcast(); |
| } |
| |
| /** Called on handler thread */ |
| void dispatchUserSwitchComplete(int userId) { |
| final int observerCount = mUserSwitchObservers.beginBroadcast(); |
| for (int i = 0; i < observerCount; i++) { |
| try { |
| mUserSwitchObservers.getBroadcastItem(i).onUserSwitchComplete(userId); |
| } catch (RemoteException e) { |
| } |
| } |
| mUserSwitchObservers.finishBroadcast(); |
| } |
| |
| private void stopBackgroundUsersIfEnforced(int oldUserId) { |
| // Never stop system user |
| if (oldUserId == UserHandle.USER_SYSTEM) { |
| return; |
| } |
| // For now, only check for user restriction. Additional checks can be added here |
| boolean disallowRunInBg = hasUserRestriction(UserManager.DISALLOW_RUN_IN_BACKGROUND, |
| oldUserId); |
| if (!disallowRunInBg) { |
| return; |
| } |
| synchronized (mService) { |
| if (DEBUG_MU) Slog.i(TAG, "stopBackgroundUsersIfEnforced stopping " + oldUserId |
| + " and related users"); |
| stopUsersLocked(oldUserId, false, null); |
| } |
| } |
| |
| void timeoutUserSwitch(UserState uss, int oldUserId, int newUserId) { |
| synchronized (mService) { |
| Slog.wtf(TAG, "User switch timeout: from " + oldUserId + " to " + newUserId |
| + ". Observers that didn't send results: " + mCurWaitingUserSwitchCallbacks); |
| sendContinueUserSwitchLocked(uss, oldUserId, newUserId); |
| } |
| } |
| |
| void dispatchUserSwitch(final UserState uss, final int oldUserId, final int newUserId) { |
| Slog.d(TAG, "Dispatch onUserSwitching oldUser #" + oldUserId + " newUser #" + newUserId); |
| final int observerCount = mUserSwitchObservers.beginBroadcast(); |
| if (observerCount > 0) { |
| final ArraySet<String> curWaitingUserSwitchCallbacks = new ArraySet<>(); |
| synchronized (mService) { |
| uss.switching = true; |
| mCurWaitingUserSwitchCallbacks = curWaitingUserSwitchCallbacks; |
| } |
| final AtomicInteger waitingCallbacksCount = new AtomicInteger(observerCount); |
| for (int i = 0; i < observerCount; i++) { |
| try { |
| // Prepend with unique prefix to guarantee that keys are unique |
| final String name = "#" + i + " " + mUserSwitchObservers.getBroadcastCookie(i); |
| synchronized (mService) { |
| curWaitingUserSwitchCallbacks.add(name); |
| } |
| final IRemoteCallback callback = new IRemoteCallback.Stub() { |
| @Override |
| public void sendResult(Bundle data) throws RemoteException { |
| synchronized (mService) { |
| // Early return if this session is no longer valid |
| if (curWaitingUserSwitchCallbacks |
| != mCurWaitingUserSwitchCallbacks) { |
| return; |
| } |
| curWaitingUserSwitchCallbacks.remove(name); |
| // Continue switching if all callbacks have been notified |
| if (waitingCallbacksCount.decrementAndGet() == 0) { |
| sendContinueUserSwitchLocked(uss, oldUserId, newUserId); |
| } |
| } |
| } |
| }; |
| mUserSwitchObservers.getBroadcastItem(i).onUserSwitching(newUserId, callback); |
| } catch (RemoteException e) { |
| } |
| } |
| } else { |
| synchronized (mService) { |
| sendContinueUserSwitchLocked(uss, oldUserId, newUserId); |
| } |
| } |
| mUserSwitchObservers.finishBroadcast(); |
| } |
| |
| void sendContinueUserSwitchLocked(UserState uss, int oldUserId, int newUserId) { |
| mCurWaitingUserSwitchCallbacks = null; |
| mHandler.removeMessages(USER_SWITCH_TIMEOUT_MSG); |
| mHandler.sendMessage(mHandler.obtainMessage(ActivityManagerService.CONTINUE_USER_SWITCH_MSG, |
| oldUserId, newUserId, uss)); |
| } |
| |
| void continueUserSwitch(UserState uss, int oldUserId, int newUserId) { |
| Slog.d(TAG, "Continue user switch oldUser #" + oldUserId + ", newUser #" + newUserId); |
| synchronized (mService) { |
| mService.mWindowManager.stopFreezingScreen(); |
| } |
| uss.switching = false; |
| mHandler.removeMessages(REPORT_USER_SWITCH_COMPLETE_MSG); |
| mHandler.sendMessage(mHandler.obtainMessage(REPORT_USER_SWITCH_COMPLETE_MSG, |
| newUserId, 0)); |
| stopGuestOrEphemeralUserIfBackground(); |
| stopBackgroundUsersIfEnforced(oldUserId); |
| } |
| |
| void moveUserToForegroundLocked(UserState uss, int oldUserId, int newUserId) { |
| boolean homeInFront = mService.mStackSupervisor.switchUserLocked(newUserId, uss); |
| if (homeInFront) { |
| mService.startHomeActivityLocked(newUserId, "moveUserToForeground"); |
| } else { |
| mService.mStackSupervisor.resumeFocusedStackTopActivityLocked(); |
| } |
| EventLogTags.writeAmSwitchUser(newUserId); |
| sendUserSwitchBroadcastsLocked(oldUserId, newUserId); |
| } |
| |
| void sendUserSwitchBroadcastsLocked(int oldUserId, int newUserId) { |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| Intent intent; |
| if (oldUserId >= 0) { |
| // Send USER_BACKGROUND broadcast to all profiles of the outgoing user |
| List<UserInfo> profiles = getUserManager().getProfiles(oldUserId, false); |
| int count = profiles.size(); |
| for (int i = 0; i < count; i++) { |
| int profileUserId = profiles.get(i).id; |
| intent = new Intent(Intent.ACTION_USER_BACKGROUND); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY |
| | Intent.FLAG_RECEIVER_FOREGROUND); |
| intent.putExtra(Intent.EXTRA_USER_HANDLE, profileUserId); |
| mService.broadcastIntentLocked(null, null, intent, |
| null, null, 0, null, null, null, AppOpsManager.OP_NONE, |
| null, false, false, MY_PID, SYSTEM_UID, profileUserId); |
| } |
| } |
| if (newUserId >= 0) { |
| // Send USER_FOREGROUND broadcast to all profiles of the incoming user |
| List<UserInfo> profiles = getUserManager().getProfiles(newUserId, false); |
| int count = profiles.size(); |
| for (int i = 0; i < count; i++) { |
| int profileUserId = profiles.get(i).id; |
| intent = new Intent(Intent.ACTION_USER_FOREGROUND); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY |
| | Intent.FLAG_RECEIVER_FOREGROUND); |
| intent.putExtra(Intent.EXTRA_USER_HANDLE, profileUserId); |
| mService.broadcastIntentLocked(null, null, intent, |
| null, null, 0, null, null, null, AppOpsManager.OP_NONE, |
| null, false, false, MY_PID, SYSTEM_UID, profileUserId); |
| } |
| intent = new Intent(Intent.ACTION_USER_SWITCHED); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY |
| | Intent.FLAG_RECEIVER_FOREGROUND); |
| intent.putExtra(Intent.EXTRA_USER_HANDLE, newUserId); |
| mService.broadcastIntentLocked(null, null, intent, |
| null, null, 0, null, null, |
| new String[] {android.Manifest.permission.MANAGE_USERS}, |
| AppOpsManager.OP_NONE, null, false, false, MY_PID, SYSTEM_UID, |
| UserHandle.USER_ALL); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| |
| int handleIncomingUser(int callingPid, int callingUid, int userId, boolean allowAll, |
| int allowMode, String name, String callerPackage) { |
| final int callingUserId = UserHandle.getUserId(callingUid); |
| if (callingUserId == userId) { |
| return userId; |
| } |
| |
| // Note that we may be accessing mCurrentUserId outside of a lock... |
| // shouldn't be a big deal, if this is being called outside |
| // of a locked context there is intrinsically a race with |
| // the value the caller will receive and someone else changing it. |
| // We assume that USER_CURRENT_OR_SELF will use the current user; later |
| // we will switch to the calling user if access to the current user fails. |
| int targetUserId = unsafeConvertIncomingUserLocked(userId); |
| |
| if (callingUid != 0 && callingUid != SYSTEM_UID) { |
| final boolean allow; |
| if (mService.checkComponentPermission(INTERACT_ACROSS_USERS_FULL, callingPid, |
| callingUid, -1, true) == PackageManager.PERMISSION_GRANTED) { |
| // If the caller has this permission, they always pass go. And collect $200. |
| allow = true; |
| } else if (allowMode == ALLOW_FULL_ONLY) { |
| // We require full access, sucks to be you. |
| allow = false; |
| } else if (mService.checkComponentPermission(INTERACT_ACROSS_USERS, callingPid, |
| callingUid, -1, true) != PackageManager.PERMISSION_GRANTED) { |
| // If the caller does not have either permission, they are always doomed. |
| allow = false; |
| } else if (allowMode == ALLOW_NON_FULL) { |
| // We are blanket allowing non-full access, you lucky caller! |
| allow = true; |
| } else if (allowMode == ALLOW_NON_FULL_IN_PROFILE) { |
| // We may or may not allow this depending on whether the two users are |
| // in the same profile. |
| allow = isSameProfileGroup(callingUserId, targetUserId); |
| } else { |
| throw new IllegalArgumentException("Unknown mode: " + allowMode); |
| } |
| if (!allow) { |
| if (userId == UserHandle.USER_CURRENT_OR_SELF) { |
| // In this case, they would like to just execute as their |
| // owner user instead of failing. |
| targetUserId = callingUserId; |
| } else { |
| StringBuilder builder = new StringBuilder(128); |
| builder.append("Permission Denial: "); |
| builder.append(name); |
| if (callerPackage != null) { |
| builder.append(" from "); |
| builder.append(callerPackage); |
| } |
| builder.append(" asks to run as user "); |
| builder.append(userId); |
| builder.append(" but is calling from user "); |
| builder.append(UserHandle.getUserId(callingUid)); |
| builder.append("; this requires "); |
| builder.append(INTERACT_ACROSS_USERS_FULL); |
| if (allowMode != ALLOW_FULL_ONLY) { |
| builder.append(" or "); |
| builder.append(INTERACT_ACROSS_USERS); |
| } |
| String msg = builder.toString(); |
| Slog.w(TAG, msg); |
| throw new SecurityException(msg); |
| } |
| } |
| } |
| if (!allowAll && targetUserId < 0) { |
| throw new IllegalArgumentException( |
| "Call does not support special user #" + targetUserId); |
| } |
| // Check shell permission |
| if (callingUid == Process.SHELL_UID && targetUserId >= UserHandle.USER_SYSTEM) { |
| if (hasUserRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES, targetUserId)) { |
| throw new SecurityException("Shell does not have permission to access user " |
| + targetUserId + "\n " + Debug.getCallers(3)); |
| } |
| } |
| return targetUserId; |
| } |
| |
| int unsafeConvertIncomingUserLocked(int userId) { |
| return (userId == UserHandle.USER_CURRENT || userId == UserHandle.USER_CURRENT_OR_SELF) |
| ? getCurrentUserIdLocked(): userId; |
| } |
| |
| void registerUserSwitchObserver(IUserSwitchObserver observer, String name) { |
| Preconditions.checkNotNull(name, "Observer name cannot be null"); |
| if (mService.checkCallingPermission(INTERACT_ACROSS_USERS_FULL) |
| != PackageManager.PERMISSION_GRANTED) { |
| final String msg = "Permission Denial: registerUserSwitchObserver() from pid=" |
| + Binder.getCallingPid() |
| + ", uid=" + Binder.getCallingUid() |
| + " requires " + INTERACT_ACROSS_USERS_FULL; |
| Slog.w(TAG, msg); |
| throw new SecurityException(msg); |
| } |
| mUserSwitchObservers.register(observer, name); |
| } |
| |
| void unregisterUserSwitchObserver(IUserSwitchObserver observer) { |
| mUserSwitchObservers.unregister(observer); |
| } |
| |
| UserState getStartedUserStateLocked(int userId) { |
| return mStartedUsers.get(userId); |
| } |
| |
| boolean hasStartedUserState(int userId) { |
| return mStartedUsers.get(userId) != null; |
| } |
| |
| private void updateStartedUserArrayLocked() { |
| int num = 0; |
| for (int i = 0; i < mStartedUsers.size(); i++) { |
| UserState uss = mStartedUsers.valueAt(i); |
| // This list does not include stopping users. |
| if (uss.state != UserState.STATE_STOPPING |
| && uss.state != UserState.STATE_SHUTDOWN) { |
| num++; |
| } |
| } |
| mStartedUserArray = new int[num]; |
| num = 0; |
| for (int i = 0; i < mStartedUsers.size(); i++) { |
| UserState uss = mStartedUsers.valueAt(i); |
| if (uss.state != UserState.STATE_STOPPING |
| && uss.state != UserState.STATE_SHUTDOWN) { |
| mStartedUserArray[num++] = mStartedUsers.keyAt(i); |
| } |
| } |
| } |
| |
| void sendBootCompletedLocked(IIntentReceiver resultTo) { |
| for (int i = 0; i < mStartedUsers.size(); i++) { |
| UserState uss = mStartedUsers.valueAt(i); |
| finishUserBoot(uss, resultTo); |
| } |
| } |
| |
| void onSystemReady() { |
| updateCurrentProfileIdsLocked(); |
| } |
| |
| /** |
| * Refreshes the list of users related to the current user when either a |
| * user switch happens or when a new related user is started in the |
| * background. |
| */ |
| private void updateCurrentProfileIdsLocked() { |
| final List<UserInfo> profiles = getUserManager().getProfiles(mCurrentUserId, |
| false /* enabledOnly */); |
| int[] currentProfileIds = new int[profiles.size()]; // profiles will not be null |
| for (int i = 0; i < currentProfileIds.length; i++) { |
| currentProfileIds[i] = profiles.get(i).id; |
| } |
| mCurrentProfileIds = currentProfileIds; |
| |
| synchronized (mUserProfileGroupIdsSelfLocked) { |
| mUserProfileGroupIdsSelfLocked.clear(); |
| final List<UserInfo> users = getUserManager().getUsers(false); |
| for (int i = 0; i < users.size(); i++) { |
| UserInfo user = users.get(i); |
| if (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { |
| mUserProfileGroupIdsSelfLocked.put(user.id, user.profileGroupId); |
| } |
| } |
| } |
| } |
| |
| int[] getStartedUserArrayLocked() { |
| return mStartedUserArray; |
| } |
| |
| boolean isUserStoppingOrShuttingDownLocked(int userId) { |
| UserState state = getStartedUserStateLocked(userId); |
| if (state == null) { |
| return false; |
| } |
| return state.state == UserState.STATE_STOPPING |
| || state.state == UserState.STATE_SHUTDOWN; |
| } |
| |
| boolean isUserRunningLocked(int userId, int flags) { |
| UserState state = getStartedUserStateLocked(userId); |
| if (state == null) { |
| return false; |
| } |
| if ((flags & ActivityManager.FLAG_OR_STOPPED) != 0) { |
| return true; |
| } |
| if ((flags & ActivityManager.FLAG_AND_LOCKED) != 0) { |
| switch (state.state) { |
| case UserState.STATE_BOOTING: |
| case UserState.STATE_RUNNING_LOCKED: |
| return true; |
| default: |
| return false; |
| } |
| } |
| if ((flags & ActivityManager.FLAG_AND_UNLOCKING_OR_UNLOCKED) != 0) { |
| switch (state.state) { |
| case UserState.STATE_RUNNING_UNLOCKING: |
| case UserState.STATE_RUNNING_UNLOCKED: |
| return true; |
| default: |
| return false; |
| } |
| } |
| if ((flags & ActivityManager.FLAG_AND_UNLOCKED) != 0) { |
| switch (state.state) { |
| case UserState.STATE_RUNNING_UNLOCKED: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| // One way or another, we're running! |
| return true; |
| } |
| |
| UserInfo getCurrentUser() { |
| if ((mService.checkCallingPermission(INTERACT_ACROSS_USERS) |
| != PackageManager.PERMISSION_GRANTED) && ( |
| mService.checkCallingPermission(INTERACT_ACROSS_USERS_FULL) |
| != PackageManager.PERMISSION_GRANTED)) { |
| String msg = "Permission Denial: getCurrentUser() from pid=" |
| + Binder.getCallingPid() |
| + ", uid=" + Binder.getCallingUid() |
| + " requires " + INTERACT_ACROSS_USERS; |
| Slog.w(TAG, msg); |
| throw new SecurityException(msg); |
| } |
| synchronized (mService) { |
| return getCurrentUserLocked(); |
| } |
| } |
| |
| UserInfo getCurrentUserLocked() { |
| int userId = mTargetUserId != UserHandle.USER_NULL ? mTargetUserId : mCurrentUserId; |
| return getUserInfo(userId); |
| } |
| |
| int getCurrentOrTargetUserIdLocked() { |
| return mTargetUserId != UserHandle.USER_NULL ? mTargetUserId : mCurrentUserId; |
| } |
| |
| int getCurrentUserIdLocked() { |
| return mCurrentUserId; |
| } |
| |
| private boolean isCurrentUserLocked(int userId) { |
| return userId == getCurrentOrTargetUserIdLocked(); |
| } |
| |
| int setTargetUserIdLocked(int targetUserId) { |
| return mTargetUserId = targetUserId; |
| } |
| |
| int[] getUsers() { |
| UserManagerService ums = getUserManager(); |
| return ums != null ? ums.getUserIds() : new int[] { 0 }; |
| } |
| |
| UserInfo getUserInfo(int userId) { |
| return getUserManager().getUserInfo(userId); |
| } |
| |
| int[] getUserIds() { |
| return getUserManager().getUserIds(); |
| } |
| |
| boolean exists(int userId) { |
| return getUserManager().exists(userId); |
| } |
| |
| boolean hasUserRestriction(String restriction, int userId) { |
| return getUserManager().hasUserRestriction(restriction, userId); |
| } |
| |
| Set<Integer> getProfileIds(int userId) { |
| Set<Integer> userIds = new HashSet<>(); |
| final List<UserInfo> profiles = getUserManager().getProfiles(userId, |
| false /* enabledOnly */); |
| for (UserInfo user : profiles) { |
| userIds.add(user.id); |
| } |
| return userIds; |
| } |
| |
| boolean isSameProfileGroup(int callingUserId, int targetUserId) { |
| if (callingUserId == targetUserId) { |
| return true; |
| } |
| synchronized (mUserProfileGroupIdsSelfLocked) { |
| int callingProfile = mUserProfileGroupIdsSelfLocked.get(callingUserId, |
| UserInfo.NO_PROFILE_GROUP_ID); |
| int targetProfile = mUserProfileGroupIdsSelfLocked.get(targetUserId, |
| UserInfo.NO_PROFILE_GROUP_ID); |
| return callingProfile != UserInfo.NO_PROFILE_GROUP_ID |
| && callingProfile == targetProfile; |
| } |
| } |
| |
| boolean isCurrentProfileLocked(int userId) { |
| return ArrayUtils.contains(mCurrentProfileIds, userId); |
| } |
| |
| int[] getCurrentProfileIdsLocked() { |
| return mCurrentProfileIds; |
| } |
| |
| /** |
| * Returns whether the given user requires credential entry at this time. This is used to |
| * intercept activity launches for work apps when the Work Challenge is present. |
| */ |
| boolean shouldConfirmCredentials(int userId) { |
| synchronized (mService) { |
| if (mStartedUsers.get(userId) == null) { |
| return false; |
| } |
| } |
| if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userId)) { |
| return false; |
| } |
| final KeyguardManager km = (KeyguardManager) mService.mContext |
| .getSystemService(KEYGUARD_SERVICE); |
| return km.isDeviceLocked(userId) && km.isDeviceSecure(userId); |
| } |
| |
| boolean isLockScreenDisabled(@UserIdInt int userId) { |
| return mLockPatternUtils.isLockScreenDisabled(userId); |
| } |
| |
| private UserManagerInternal getUserManagerInternal() { |
| if (mUserManagerInternal == null) { |
| mUserManagerInternal = LocalServices.getService(UserManagerInternal.class); |
| } |
| return mUserManagerInternal; |
| } |
| |
| void dump(PrintWriter pw, boolean dumpAll) { |
| pw.println(" mStartedUsers:"); |
| for (int i = 0; i < mStartedUsers.size(); i++) { |
| UserState uss = mStartedUsers.valueAt(i); |
| pw.print(" User #"); pw.print(uss.mHandle.getIdentifier()); |
| pw.print(": "); uss.dump("", pw); |
| } |
| pw.print(" mStartedUserArray: ["); |
| for (int i = 0; i < mStartedUserArray.length; i++) { |
| if (i > 0) pw.print(", "); |
| pw.print(mStartedUserArray[i]); |
| } |
| pw.println("]"); |
| pw.print(" mUserLru: ["); |
| for (int i = 0; i < mUserLru.size(); i++) { |
| if (i > 0) pw.print(", "); |
| pw.print(mUserLru.get(i)); |
| } |
| pw.println("]"); |
| if (dumpAll) { |
| pw.print(" mStartedUserArray: "); pw.println(Arrays.toString(mStartedUserArray)); |
| } |
| synchronized (mUserProfileGroupIdsSelfLocked) { |
| if (mUserProfileGroupIdsSelfLocked.size() > 0) { |
| pw.println(" mUserProfileGroupIds:"); |
| for (int i=0; i<mUserProfileGroupIdsSelfLocked.size(); i++) { |
| pw.print(" User #"); |
| pw.print(mUserProfileGroupIdsSelfLocked.keyAt(i)); |
| pw.print(" -> profile #"); |
| pw.println(mUserProfileGroupIdsSelfLocked.valueAt(i)); |
| } |
| } |
| } |
| } |
| } |
