| /* |
| * Copyright (C) 2018 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.car.user; |
| |
| import static android.Manifest.permission.CREATE_USERS; |
| import static android.Manifest.permission.MANAGE_USERS; |
| import static android.car.drivingstate.CarUxRestrictions.UX_RESTRICTIONS_NO_SETUP; |
| |
| import static com.android.car.PermissionHelper.checkHasAtLeastOnePermissionGranted; |
| import static com.android.car.PermissionHelper.checkHasDumpPermissionGranted; |
| import static com.android.car.internal.ExcludeFromCodeCoverageGeneratedReport.DUMP_INFO; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.UserIdInt; |
| import android.app.ActivityManager; |
| import android.car.ICarResultReceiver; |
| import android.car.ICarUserService; |
| import android.car.builtin.app.ActivityManagerHelper; |
| import android.car.builtin.content.pm.PackageManagerHelper; |
| import android.car.builtin.os.TraceHelper; |
| import android.car.builtin.os.UserManagerHelper; |
| import android.car.builtin.util.Slog; |
| import android.car.builtin.util.Slogf; |
| import android.car.builtin.util.TimingsTraceLog; |
| import android.car.drivingstate.CarUxRestrictions; |
| import android.car.drivingstate.ICarUxRestrictionsChangeListener; |
| import android.car.settings.CarSettings; |
| import android.car.user.CarUserManager; |
| import android.car.user.CarUserManager.UserIdentificationAssociationSetValue; |
| import android.car.user.CarUserManager.UserIdentificationAssociationType; |
| import android.car.user.CarUserManager.UserLifecycleEvent; |
| import android.car.user.CarUserManager.UserLifecycleListener; |
| import android.car.user.UserCreationResult; |
| import android.car.user.UserIdentificationAssociationResponse; |
| import android.car.user.UserRemovalResult; |
| import android.car.user.UserStartResult; |
| import android.car.user.UserStopResult; |
| import android.car.user.UserSwitchResult; |
| import android.car.util.concurrent.AndroidFuture; |
| import android.content.Context; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.res.Resources; |
| import android.hardware.automotive.vehicle.V2_0.CreateUserRequest; |
| import android.hardware.automotive.vehicle.V2_0.CreateUserStatus; |
| import android.hardware.automotive.vehicle.V2_0.InitialUserInfoRequestType; |
| import android.hardware.automotive.vehicle.V2_0.InitialUserInfoResponseAction; |
| import android.hardware.automotive.vehicle.V2_0.RemoveUserRequest; |
| import android.hardware.automotive.vehicle.V2_0.SwitchUserRequest; |
| import android.hardware.automotive.vehicle.V2_0.SwitchUserStatus; |
| import android.hardware.automotive.vehicle.V2_0.UserIdentificationGetRequest; |
| import android.hardware.automotive.vehicle.V2_0.UserIdentificationResponse; |
| import android.hardware.automotive.vehicle.V2_0.UserIdentificationSetAssociation; |
| import android.hardware.automotive.vehicle.V2_0.UserIdentificationSetRequest; |
| import android.hardware.automotive.vehicle.V2_0.UsersInfo; |
| import android.location.LocationManager; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.IBinder; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.provider.Settings; |
| import android.text.TextUtils; |
| import android.util.ArrayMap; |
| import android.util.EventLog; |
| import android.util.Log; |
| import android.util.SparseBooleanArray; |
| import android.view.Display; |
| |
| import com.android.car.CarLog; |
| import com.android.car.CarServiceBase; |
| import com.android.car.CarServiceUtils; |
| import com.android.car.CarUxRestrictionsManagerService; |
| import com.android.car.R; |
| import com.android.car.hal.HalCallback; |
| import com.android.car.hal.UserHalHelper; |
| import com.android.car.hal.UserHalService; |
| import com.android.car.internal.ExcludeFromCodeCoverageGeneratedReport; |
| import com.android.car.internal.ICarServiceHelper; |
| import com.android.car.internal.common.CommonConstants.UserLifecycleEventType; |
| import com.android.car.internal.common.EventLogTags; |
| import com.android.car.internal.common.UserHelperLite; |
| import com.android.car.internal.os.CarSystemProperties; |
| import com.android.car.internal.util.ArrayUtils; |
| import com.android.car.internal.util.FunctionalUtils; |
| import com.android.car.internal.util.IndentingPrintWriter; |
| import com.android.car.power.CarPowerManagementService; |
| import com.android.car.user.InitialUserSetter.InitialUserInfo; |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.util.Preconditions; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * User service for cars. |
| */ |
| public final class CarUserService extends ICarUserService.Stub implements CarServiceBase { |
| |
| private static final String TAG = CarLog.tagFor(CarUserService.class); |
| |
| /** {@code int} extra used to represent a user id in a {@link ICarResultReceiver} response. */ |
| public static final String BUNDLE_USER_ID = "user.id"; |
| /** {@code int} extra used to represent user flags in a {@link ICarResultReceiver} response. */ |
| public static final String BUNDLE_USER_FLAGS = "user.flags"; |
| /** |
| * {@code String} extra used to represent a user name in a {@link ICarResultReceiver} response. |
| */ |
| public static final String BUNDLE_USER_NAME = "user.name"; |
| /** |
| * {@code int} extra used to represent the user locales in a {@link ICarResultReceiver} |
| * response. |
| */ |
| public static final String BUNDLE_USER_LOCALES = "user.locales"; |
| /** |
| * {@code int} extra used to represent the info action in a {@link ICarResultReceiver} response. |
| */ |
| public static final String BUNDLE_INITIAL_INFO_ACTION = "initial_info.action"; |
| |
| public static final String VEHICLE_HAL_NOT_SUPPORTED = "Vehicle Hal not supported."; |
| |
| public static final String HANDLER_THREAD_NAME = "UserService"; |
| |
| // Constants below must match value of same constants defined by ActivityManager |
| public static final int USER_OP_SUCCESS = 0; |
| public static final int USER_OP_UNKNOWN_USER = -1; |
| public static final int USER_OP_IS_CURRENT = -2; |
| public static final int USER_OP_ERROR_IS_SYSTEM = -3; |
| public static final int USER_OP_ERROR_RELATED_USERS_CANNOT_STOP = -4; |
| |
| private final Context mContext; |
| private final ActivityManagerHelper mAmHelper; |
| private final ActivityManager mAm; |
| private final UserManager mUserManager; |
| private final int mMaxRunningUsers; |
| private final InitialUserSetter mInitialUserSetter; |
| private final UserPreCreator mUserPreCreator; |
| |
| private final Object mLockUser = new Object(); |
| @GuardedBy("mLockUser") |
| private boolean mUser0Unlocked; |
| @GuardedBy("mLockUser") |
| private final ArrayList<Runnable> mUser0UnlockTasks = new ArrayList<>(); |
| /** |
| * Background users that will be restarted in garage mode. This list can include the |
| * current foreground user but the current foreground user should not be restarted. |
| */ |
| @GuardedBy("mLockUser") |
| private final ArrayList<Integer> mBackgroundUsersToRestart = new ArrayList<>(); |
| /** |
| * Keep the list of background users started here. This is wholly for debugging purpose. |
| */ |
| @GuardedBy("mLockUser") |
| private final ArrayList<Integer> mBackgroundUsersRestartedHere = new ArrayList<>(); |
| |
| private final UserHalService mHal; |
| |
| private final HandlerThread mHandlerThread = CarServiceUtils.getHandlerThread( |
| HANDLER_THREAD_NAME); |
| private final Handler mHandler; |
| |
| /** |
| * Internal listeners to be notified on new user activities events. |
| * |
| * <p>This collection should be accessed and manipulated by {@code mHandlerThread} only. |
| */ |
| private final List<UserLifecycleListener> mUserLifecycleListeners = new ArrayList<>(); |
| |
| /** |
| * App listeners to be notified on new user activities events. |
| * |
| * <p>This collection should be accessed and manipulated by {@code mHandlerThread} only. |
| */ |
| private final ArrayMap<IBinder, AppLifecycleListener> mAppLifecycleListeners = |
| new ArrayMap<>(); |
| |
| /** |
| * User Id for the user switch in process, if any. |
| */ |
| @GuardedBy("mLockUser") |
| private int mUserIdForUserSwitchInProcess = UserHandle.USER_NULL; |
| /** |
| * Request Id for the user switch in process, if any. |
| */ |
| @GuardedBy("mLockUser") |
| private int mRequestIdForUserSwitchInProcess; |
| private final int mHalTimeoutMs = CarSystemProperties.getUserHalTimeout().orElse(5_000); |
| |
| // TODO(b/163566866): Use mSwitchGuestUserBeforeSleep for new create guest request |
| private final boolean mSwitchGuestUserBeforeSleep; |
| |
| @Nullable |
| @GuardedBy("mLockUser") |
| private UserHandle mInitialUser; |
| |
| private ICarResultReceiver mUserSwitchUiReceiver; |
| |
| private final CarUxRestrictionsManagerService mCarUxRestrictionService; |
| |
| /** |
| * Whether some operations - like user switch - are restricted by driving safety constraints. |
| */ |
| @GuardedBy("mLockUser") |
| private boolean mUxRestricted; |
| |
| /** |
| * If {@code false}, garage mode operations (background users start at garage mode entry and |
| * background users stop at garage mode exit) will be skipped. Controlled using car shell |
| * command {@code adb shell set-start-bg-users-on-garage-mode [true|false]} |
| * Purpose: Garage mode testing and simulation |
| */ |
| @GuardedBy("mLockUser") |
| private boolean mStartBackgroundUsersOnGarageMode = true; |
| |
| /** |
| * Callback to notify {@code CarServiceHelper} about driving safety changes (through |
| * {@link ICarServiceHelper#setSafetyMode(boolean). |
| * |
| * <p>NOTE: in theory, that logic should belong to {@code CarDevicePolicyService}, but it's |
| * simpler to do it here (and that service already depends on this one). |
| */ |
| @GuardedBy("mLockUser") |
| private ICarServiceHelper mICarServiceHelper; |
| |
| private final ICarUxRestrictionsChangeListener mCarUxRestrictionsChangeListener = |
| new ICarUxRestrictionsChangeListener.Stub() { |
| @Override |
| public void onUxRestrictionsChanged(CarUxRestrictions restrictions) { |
| setUxRestrictions(restrictions); |
| } |
| }; |
| |
| /** Map used to avoid calling UserHAL when a user was removed because HAL creation failed. */ |
| @GuardedBy("mLockUser") |
| private final SparseBooleanArray mFailedToCreateUserIds = new SparseBooleanArray(1); |
| |
| private final UserHandleHelper mUserHandleHelper; |
| |
| public CarUserService(@NonNull Context context, @NonNull UserHalService hal, |
| @NonNull UserManager userManager, |
| @NonNull ActivityManagerHelper amHelper, |
| int maxRunningUsers, |
| @NonNull CarUxRestrictionsManagerService uxRestrictionService) { |
| this(context, hal, userManager, new UserHandleHelper(context, userManager), |
| context.getSystemService(ActivityManager.class), amHelper, maxRunningUsers, |
| /* initialUserSetter= */ null, /* userPreCreator= */ null, uxRestrictionService, |
| null); |
| } |
| |
| @VisibleForTesting |
| CarUserService(@NonNull Context context, @NonNull UserHalService hal, |
| @NonNull UserManager userManager, |
| @NonNull UserHandleHelper userHandleHelper, |
| @NonNull ActivityManager am, |
| @NonNull ActivityManagerHelper amHelper, |
| int maxRunningUsers, |
| @Nullable InitialUserSetter initialUserSetter, |
| @Nullable UserPreCreator userPreCreator, |
| @NonNull CarUxRestrictionsManagerService uxRestrictionService, |
| @Nullable Handler handler) { |
| Slogf.d(TAG, "constructed for user %s", context.getUser()); |
| mContext = context; |
| mHal = hal; |
| mAm = am; |
| mAmHelper = amHelper; |
| mMaxRunningUsers = maxRunningUsers; |
| mUserManager = userManager; |
| mUserHandleHelper = userHandleHelper; |
| mHandler = handler == null ? new Handler(mHandlerThread.getLooper()) : handler; |
| mInitialUserSetter = |
| initialUserSetter == null ? new InitialUserSetter(context, this, |
| (u) -> setInitialUser(u), mUserHandleHelper) : initialUserSetter; |
| mUserPreCreator = |
| userPreCreator == null ? new UserPreCreator(context, mUserManager) : userPreCreator; |
| Resources resources = context.getResources(); |
| mSwitchGuestUserBeforeSleep = resources.getBoolean( |
| R.bool.config_switchGuestUserBeforeGoingSleep); |
| mCarUxRestrictionService = uxRestrictionService; |
| } |
| |
| @Override |
| public void init() { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "init()"); |
| } |
| mCarUxRestrictionService.registerUxRestrictionsChangeListener( |
| mCarUxRestrictionsChangeListener, Display.DEFAULT_DISPLAY); |
| |
| setUxRestrictions(mCarUxRestrictionService.getCurrentUxRestrictions()); |
| } |
| |
| @Override |
| public void release() { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "release()"); |
| } |
| mCarUxRestrictionService |
| .unregisterUxRestrictionsChangeListener(mCarUxRestrictionsChangeListener); |
| } |
| |
| @Override |
| @ExcludeFromCodeCoverageGeneratedReport(reason = DUMP_INFO) |
| public void dump(@NonNull IndentingPrintWriter writer) { |
| checkHasDumpPermissionGranted(mContext, "dump()"); |
| |
| writer.println("*CarUserService*"); |
| handleDumpListeners(writer); |
| writer.printf("User switch UI receiver %s\n", mUserSwitchUiReceiver); |
| synchronized (mLockUser) { |
| writer.println("User0Unlocked: " + mUser0Unlocked); |
| writer.println("BackgroundUsersToRestart: " + mBackgroundUsersToRestart); |
| writer.println("BackgroundUsersRestarted: " + mBackgroundUsersRestartedHere); |
| if (mFailedToCreateUserIds.size() > 0) { |
| writer.println("FailedToCreateUserIds: " + mFailedToCreateUserIds); |
| } |
| writer.printf("Is UX restricted: %b\n", mUxRestricted); |
| writer.printf("Start Background Users On Garage Mode=%s\n", |
| mStartBackgroundUsersOnGarageMode); |
| } |
| |
| writer.println("SwitchGuestUserBeforeSleep: " + mSwitchGuestUserBeforeSleep); |
| |
| writer.println("MaxRunningUsers: " + mMaxRunningUsers); |
| writer.printf("User HAL timeout: %dms\n", mHalTimeoutMs); |
| writer.printf("Initial user: %s\n", mInitialUser); |
| |
| writer.println("Relevant overlayable properties"); |
| Resources res = mContext.getResources(); |
| writer.increaseIndent(); |
| writer.printf("owner_name=%s\n", UserManagerHelper.getDefaultUserName(mContext)); |
| writer.printf("default_guest_name=%s\n", res.getString(R.string.default_guest_name)); |
| writer.printf("config_multiuserMaxRunningUsers=%d\n", |
| UserManagerHelper.getMaxRunningUsers(mContext)); |
| writer.decreaseIndent(); |
| writer.printf("User switch in process=%d\n", mUserIdForUserSwitchInProcess); |
| writer.printf("Request Id for the user switch in process=%d\n ", |
| mRequestIdForUserSwitchInProcess); |
| writer.printf("System UI package name=%s\n", |
| PackageManagerHelper.getSystemUiPackageName(mContext)); |
| |
| writer.println("Relevant Global settings"); |
| writer.increaseIndent(); |
| dumpGlobalProperty(writer, CarSettings.Global.LAST_ACTIVE_USER_ID); |
| dumpGlobalProperty(writer, CarSettings.Global.LAST_ACTIVE_PERSISTENT_USER_ID); |
| writer.decreaseIndent(); |
| |
| mInitialUserSetter.dump(writer); |
| } |
| |
| private void dumpGlobalProperty(IndentingPrintWriter writer, String property) { |
| String value = Settings.Global.getString(mContext.getContentResolver(), property); |
| writer.printf("%s=%s\n", property, value); |
| } |
| |
| private void handleDumpListeners(IndentingPrintWriter writer) { |
| writer.increaseIndent(); |
| CountDownLatch latch = new CountDownLatch(1); |
| mHandler.post(() -> { |
| handleDumpServiceLifecycleListeners(writer); |
| handleDumpAppLifecycleListeners(writer); |
| latch.countDown(); |
| }); |
| int timeout = 5; |
| try { |
| if (!latch.await(timeout, TimeUnit.SECONDS)) { |
| writer.printf("Handler thread didn't respond in %ds when dumping listeners\n", |
| timeout); |
| } |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| writer.println("Interrupted waiting for handler thread to dump app and user listeners"); |
| } |
| writer.decreaseIndent(); |
| } |
| |
| private void handleDumpServiceLifecycleListeners(PrintWriter writer) { |
| if (mUserLifecycleListeners.isEmpty()) { |
| writer.println("No lifecycle listeners for internal services"); |
| return; |
| } |
| int size = mUserLifecycleListeners.size(); |
| writer.printf("%d lifecycle listener%s for services\n", size, size == 1 ? "" : "s"); |
| String indent = " "; |
| for (int i = 0; i < size; i++) { |
| UserLifecycleListener listener = mUserLifecycleListeners.get(i); |
| writer.printf("%s%s\n", indent, FunctionalUtils.getLambdaName(listener)); |
| } |
| } |
| |
| private void handleDumpAppLifecycleListeners(IndentingPrintWriter writer) { |
| int size = mAppLifecycleListeners.size(); |
| if (size == 0) { |
| writer.println("No lifecycle listeners for apps"); |
| return; |
| } |
| writer.printf("%d lifecycle listener%s for apps\n", size, size == 1 ? "" : "s"); |
| writer.increaseIndent(); |
| for (int i = 0; i < size; i++) { |
| mAppLifecycleListeners.valueAt(i).dump(writer); |
| } |
| writer.decreaseIndent(); |
| } |
| |
| @Override |
| public void setLifecycleListenerForApp(String packageName, ICarResultReceiver receiver) { |
| int uid = Binder.getCallingUid(); |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_SET_LIFECYCLE_LISTENER, uid, packageName); |
| checkInteractAcrossUsersPermission("setLifecycleListenerForApp-" + uid + "-" + packageName); |
| |
| IBinder receiverBinder = receiver.asBinder(); |
| AppLifecycleListener listener = new AppLifecycleListener(uid, packageName, receiver, |
| (l) -> onListenerDeath(l)); |
| Slogf.d(TAG, "Adding %s (using binder %s)", listener, receiverBinder); |
| mHandler.post(() -> mAppLifecycleListeners.put(receiverBinder, listener)); |
| } |
| |
| private void onListenerDeath(AppLifecycleListener listener) { |
| Slogf.i(TAG, "Removing listener %s on binder death", listener); |
| mHandler.post(() -> mAppLifecycleListeners.remove(listener.receiver.asBinder())); |
| } |
| |
| @Override |
| public void resetLifecycleListenerForApp(ICarResultReceiver receiver) { |
| int uid = Binder.getCallingUid(); |
| checkInteractAcrossUsersPermission("resetLifecycleListenerForApp-" + uid); |
| IBinder receiverBinder = receiver.asBinder(); |
| mHandler.post(() -> { |
| AppLifecycleListener listener = mAppLifecycleListeners.get(receiverBinder); |
| if (listener == null) { |
| Slogf.e(TAG, "resetLifecycleListenerForApp(uid=%d): no listener for receiver", uid); |
| return; |
| } |
| if (listener.uid != uid) { |
| Slogf.e(TAG, "resetLifecycleListenerForApp(): uid mismatch (called by %d) for " |
| + "listener %s", uid, listener); |
| } |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_RESET_LIFECYCLE_LISTENER, uid, |
| listener.packageName); |
| Slogf.d(TAG, "Removing %s (using binder %s)", listener, receiverBinder); |
| mAppLifecycleListeners.remove(receiverBinder); |
| |
| listener.onDestroy(); |
| }); |
| } |
| |
| /** |
| * Gets the initial foreground user after the device boots or resumes from suspension. |
| * |
| * <p>When the OEM supports the User HAL, the initial user won't be available until the HAL |
| * returns the initial value to {@code CarService} - if HAL takes too long or times out, this |
| * method returns {@code null}. |
| * |
| * <p>If the HAL eventually times out, {@code CarService} will fallback to its default behavior |
| * (like switching to the last active user), and this method will return the result of such |
| * operation. |
| * |
| * <p>Notice that if {@code CarService} crashes, subsequent calls to this method will return |
| * {@code null}. |
| * |
| * @hide |
| */ |
| @Nullable |
| public UserHandle getInitialUser() { |
| checkInteractAcrossUsersPermission("getInitialUser"); |
| synchronized (mLockUser) { |
| return mInitialUser; |
| } |
| } |
| |
| /** |
| * Sets the initial foreground user after the device boots or resumes from suspension. |
| */ |
| public void setInitialUser(@Nullable UserHandle user) { |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_SET_INITIAL_USER, |
| user == null ? UserHandle.USER_NULL : user.getIdentifier()); |
| synchronized (mLockUser) { |
| mInitialUser = user; |
| } |
| if (user == null) { |
| // This mean InitialUserSetter failed and could not fallback, so the initial user was |
| // not switched (and most likely is SYSTEM_USER). |
| // TODO(b/153104378): should we set it to ActivityManager.getCurrentUser() instead? |
| Slog.wtf(TAG, "Initial user set to null"); |
| } |
| } |
| |
| private void initResumeReplaceGuest() { |
| int currentUserId = ActivityManager.getCurrentUser(); |
| UserHandle currentUser = mUserHandleHelper.getExistingUserHandle(currentUserId); |
| |
| if (currentUser == null) { |
| Slog.wtf(TAG, "Current user handle doesn't exits " + currentUserId); |
| } |
| |
| if (!mInitialUserSetter.canReplaceGuestUser(currentUser)) return; // Not a guest |
| |
| InitialUserInfo info = |
| new InitialUserSetter.Builder(InitialUserSetter.TYPE_REPLACE_GUEST).build(); |
| |
| mInitialUserSetter.set(info); |
| } |
| |
| /** |
| * Calls to switch user at the power suspend. |
| * |
| * <p><b>Note:</b> Should be used only by {@link CarPowerManagementService} |
| * |
| */ |
| public void onSuspend() { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "onSuspend called."); |
| } |
| |
| if (mSwitchGuestUserBeforeSleep) { |
| initResumeReplaceGuest(); |
| } |
| |
| preCreateUsersInternal(); |
| } |
| |
| /** |
| * Calls to switch user at the power resume. |
| * |
| * <p> |
| * <b>Note:</b> Should be used only by {@link CarPowerManagementService} |
| * |
| */ |
| public void onResume() { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "onResume called."); |
| } |
| |
| mHandler.post(() -> initBootUser(InitialUserInfoRequestType.RESUME)); |
| } |
| |
| /** |
| * Calls to start user at the android startup. |
| */ |
| public void initBootUser() { |
| mHandler.post(() -> initBootUser(getInitialUserInfoRequestType())); |
| } |
| |
| private void initBootUser(int requestType) { |
| boolean replaceGuest = |
| requestType == InitialUserInfoRequestType.RESUME && !mSwitchGuestUserBeforeSleep; |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_INITIAL_USER_INFO_REQ, requestType, |
| mHalTimeoutMs); |
| checkManageUsersPermission("startInitialUser"); |
| |
| if (!isUserHalSupported()) { |
| fallbackToDefaultInitialUserBehavior(/* userLocales= */ null, replaceGuest); |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_INITIAL_USER_INFO_REQ_COMPLETE, |
| requestType); |
| return; |
| } |
| |
| UsersInfo usersInfo = UserHalHelper.newUsersInfo(mUserManager, mUserHandleHelper); |
| mHal.getInitialUserInfo(requestType, mHalTimeoutMs, usersInfo, (status, resp) -> { |
| if (resp != null) { |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_INITIAL_USER_INFO_RESP, |
| status, resp.action, resp.userToSwitchOrCreate.userId, |
| resp.userToSwitchOrCreate.flags, resp.userNameToCreate, resp.userLocales); |
| |
| String userLocales = resp.userLocales; |
| InitialUserInfo info; |
| switch (resp.action) { |
| case InitialUserInfoResponseAction.SWITCH: |
| int userId = resp.userToSwitchOrCreate.userId; |
| if (userId <= 0) { |
| Slog.w(TAG, "invalid (or missing) user id sent by HAL: " + userId); |
| fallbackToDefaultInitialUserBehavior(userLocales, replaceGuest); |
| break; |
| } |
| info = new InitialUserSetter.Builder(InitialUserSetter.TYPE_SWITCH) |
| .setUserLocales(userLocales) |
| .setSwitchUserId(userId) |
| .setReplaceGuest(replaceGuest) |
| .build(); |
| mInitialUserSetter.set(info); |
| break; |
| |
| case InitialUserInfoResponseAction.CREATE: |
| int halFlags = resp.userToSwitchOrCreate.flags; |
| String userName = resp.userNameToCreate; |
| info = new InitialUserSetter.Builder(InitialUserSetter.TYPE_CREATE) |
| .setUserLocales(userLocales) |
| .setNewUserName(userName) |
| .setNewUserFlags(halFlags) |
| .build(); |
| mInitialUserSetter.set(info); |
| break; |
| |
| case InitialUserInfoResponseAction.DEFAULT: |
| fallbackToDefaultInitialUserBehavior(userLocales, replaceGuest); |
| break; |
| default: |
| Slog.w(TAG, "invalid response action on " + resp); |
| fallbackToDefaultInitialUserBehavior(/* user locale */ null, replaceGuest); |
| break; |
| |
| } |
| } else { |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_INITIAL_USER_INFO_RESP, status); |
| fallbackToDefaultInitialUserBehavior(/* user locale */ null, replaceGuest); |
| } |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_INITIAL_USER_INFO_REQ_COMPLETE, |
| requestType); |
| }); |
| } |
| |
| private void fallbackToDefaultInitialUserBehavior(String userLocales, boolean replaceGuest) { |
| InitialUserInfo info = new InitialUserSetter.Builder( |
| InitialUserSetter.TYPE_DEFAULT_BEHAVIOR) |
| .setUserLocales(userLocales) |
| .setReplaceGuest(replaceGuest) |
| .build(); |
| mInitialUserSetter.set(info); |
| } |
| |
| @VisibleForTesting |
| int getInitialUserInfoRequestType() { |
| if (!mInitialUserSetter.hasInitialUser()) { |
| return InitialUserInfoRequestType.FIRST_BOOT; |
| } |
| if (mContext.getPackageManager().isDeviceUpgrading()) { |
| return InitialUserInfoRequestType.FIRST_BOOT_AFTER_OTA; |
| } |
| return InitialUserInfoRequestType.COLD_BOOT; |
| } |
| |
| /** |
| * Sets the {@link ICarServiceHelper} so it can receive UX restriction updates. |
| */ |
| public void setCarServiceHelper(ICarServiceHelper helper) { |
| boolean restricted; |
| synchronized (mLockUser) { |
| mICarServiceHelper = helper; |
| restricted = mUxRestricted; |
| } |
| updateSafetyMode(helper, restricted); |
| } |
| |
| private void updateSafetyMode(@Nullable ICarServiceHelper helper, boolean restricted) { |
| if (helper == null) return; |
| |
| boolean isSafe = !restricted; |
| try { |
| helper.setSafetyMode(isSafe); |
| } catch (Exception e) { |
| Slog.e(TAG, "Exception calling helper.setDpmSafetyMode(" + isSafe + ")", e); |
| } |
| } |
| |
| private void setUxRestrictions(@Nullable CarUxRestrictions restrictions) { |
| boolean restricted = restrictions != null |
| && (restrictions.getActiveRestrictions() & UX_RESTRICTIONS_NO_SETUP) |
| == UX_RESTRICTIONS_NO_SETUP; |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "setUxRestrictions(" + restrictions + "): restricted=" + restricted); |
| } else { |
| Slog.i(TAG, "Setting UX restricted to " + restricted); |
| } |
| |
| ICarServiceHelper helper = null; |
| |
| synchronized (mLockUser) { |
| mUxRestricted = restricted; |
| if (mICarServiceHelper == null) { |
| Slog.e(TAG, "onUxRestrictionsChanged(): no mICarServiceHelper"); |
| } |
| helper = mICarServiceHelper; |
| } |
| updateSafetyMode(helper, restricted); |
| } |
| |
| private boolean isUxRestricted() { |
| synchronized (mLockUser) { |
| return mUxRestricted; |
| } |
| } |
| |
| /** |
| * Calls the {@link UserHalService} and {@link ActivityManager} for user switch. |
| * |
| * <p> |
| * When everything works well, the workflow is: |
| * <ol> |
| * <li> {@link UserHalService} is called for HAL user switch with ANDROID_SWITCH request |
| * type, current user id, target user id, and a callback. |
| * <li> HAL called back with SUCCESS. |
| * <li> {@link ActivityManager} is called for Android user switch. |
| * <li> Receiver would receive {@code STATUS_SUCCESSFUL}. |
| * <li> Once user is unlocked, {@link UserHalService} is again called with ANDROID_POST_SWITCH |
| * request type, current user id, and target user id. In this case, the current and target |
| * user IDs would be same. |
| * <ol/> |
| * |
| * <p> |
| * Corner cases: |
| * <ul> |
| * <li> If target user is already the current user, no user switch is performed and receiver |
| * would receive {@code STATUS_OK_USER_ALREADY_IN_FOREGROUND} right away. |
| * <li> If HAL user switch call fails, no Android user switch. Receiver would receive |
| * {@code STATUS_HAL_INTERNAL_FAILURE}. |
| * <li> If HAL user switch call is successful, but android user switch call fails, |
| * {@link UserHalService} is again called with request type POST_SWITCH, current user id, and |
| * target user id, but in this case the current and target user IDs would be different. |
| * <li> If another user switch request for the same target user is received while previous |
| * request is in process, receiver would receive |
| * {@code STATUS_TARGET_USER_ALREADY_BEING_SWITCHED_TO} for the new request right away. |
| * <li> If a user switch request is received while another user switch request for different |
| * target user is in process, the previous request would be abandoned and new request will be |
| * processed. No POST_SWITCH would be sent for the previous request. |
| * <ul/> |
| * |
| * @param targetUserId - target user Id |
| * @param timeoutMs - timeout for HAL to wait |
| * @param receiver - receiver for the results |
| */ |
| @Override |
| public void switchUser(@UserIdInt int targetUserId, int timeoutMs, |
| @NonNull AndroidFuture<UserSwitchResult> receiver) { |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_SWITCH_USER_REQ, targetUserId, timeoutMs); |
| checkManageOrCreateUsersPermission("switchUser"); |
| Objects.requireNonNull(receiver); |
| UserHandle targetUser = mUserHandleHelper.getExistingUserHandle(targetUserId); |
| Preconditions.checkArgument(targetUser != null, "Target user doesn't exist"); |
| if (mUserManager.getUserSwitchability() != UserManager.SWITCHABILITY_STATUS_OK) { |
| sendUserSwitchResult(receiver, UserSwitchResult.STATUS_NOT_SWITCHABLE); |
| return; |
| } |
| mHandler.post(() -> handleSwitchUser(targetUser, timeoutMs, receiver)); |
| } |
| |
| private void handleSwitchUser(@NonNull UserHandle targetUser, int timeoutMs, |
| @NonNull AndroidFuture<UserSwitchResult> receiver) { |
| int currentUser = ActivityManager.getCurrentUser(); |
| int targetUserId = targetUser.getIdentifier(); |
| if (currentUser == targetUserId) { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "Current user is same as requested target user: " + targetUserId); |
| } |
| int resultStatus = UserSwitchResult.STATUS_OK_USER_ALREADY_IN_FOREGROUND; |
| sendUserSwitchResult(receiver, resultStatus); |
| return; |
| } |
| |
| if (isUxRestricted()) { |
| sendUserSwitchResult(receiver, UserSwitchResult.STATUS_UX_RESTRICTION_FAILURE); |
| return; |
| } |
| |
| // If User Hal is not supported, just android user switch. |
| if (!isUserHalSupported()) { |
| if (mAm.switchUser(UserHandle.of(targetUserId))) { |
| sendUserSwitchResult(receiver, UserSwitchResult.STATUS_SUCCESSFUL); |
| return; |
| } |
| sendUserSwitchResult(receiver, UserSwitchResult.STATUS_ANDROID_FAILURE); |
| return; |
| } |
| |
| synchronized (mLockUser) { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "switchUser(" + targetUserId + "): currentuser=" + currentUser |
| + ", mUserIdForUserSwitchInProcess=" + mUserIdForUserSwitchInProcess); |
| } |
| |
| // If there is another request for the same target user, return another request in |
| // process, else {@link mUserIdForUserSwitchInProcess} is updated and {@link |
| // mRequestIdForUserSwitchInProcess} is reset. It is possible that there may be another |
| // user switch request in process for different target user, but that request is now |
| // ignored. |
| if (mUserIdForUserSwitchInProcess == targetUserId) { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, |
| "Another user switch request in process for the requested target user: " |
| + targetUserId); |
| } |
| |
| int resultStatus = UserSwitchResult.STATUS_TARGET_USER_ALREADY_BEING_SWITCHED_TO; |
| sendUserSwitchResult(receiver, resultStatus); |
| return; |
| } else { |
| mUserIdForUserSwitchInProcess = targetUserId; |
| mRequestIdForUserSwitchInProcess = 0; |
| } |
| } |
| |
| UsersInfo usersInfo = UserHalHelper.newUsersInfo(mUserManager, mUserHandleHelper); |
| SwitchUserRequest request = createUserSwitchRequest(targetUserId, usersInfo); |
| |
| mHal.switchUser(request, timeoutMs, (halCallbackStatus, resp) -> { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "switch response: status=" |
| + UserHalHelper.halCallbackStatusToString(halCallbackStatus) |
| + ", resp=" + resp); |
| } |
| |
| int resultStatus = UserSwitchResult.STATUS_HAL_INTERNAL_FAILURE; |
| |
| synchronized (mLockUser) { |
| if (halCallbackStatus != HalCallback.STATUS_OK) { |
| Slog.w(TAG, "invalid callback status (" |
| + UserHalHelper.halCallbackStatusToString(halCallbackStatus) |
| + ") for response " + resp); |
| sendUserSwitchResult(receiver, resultStatus); |
| mUserIdForUserSwitchInProcess = UserHandle.USER_NULL; |
| return; |
| } |
| |
| if (mUserIdForUserSwitchInProcess != targetUserId) { |
| // Another user switch request received while HAL responded. No need to process |
| // this request further |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "Another user switch received while HAL responsed. Request" |
| + " abondoned for : " + targetUserId + ". Current user in process: " |
| + mUserIdForUserSwitchInProcess); |
| } |
| resultStatus = |
| UserSwitchResult.STATUS_TARGET_USER_ABANDONED_DUE_TO_A_NEW_REQUEST; |
| sendUserSwitchResult(receiver, resultStatus); |
| mUserIdForUserSwitchInProcess = UserHandle.USER_NULL; |
| return; |
| } |
| |
| switch (resp.status) { |
| case SwitchUserStatus.SUCCESS: |
| boolean switched; |
| switched = mAm.switchUser(UserHandle.of(targetUserId)); |
| if (switched) { |
| sendUserSwitchUiCallback(targetUserId); |
| resultStatus = UserSwitchResult.STATUS_SUCCESSFUL; |
| mRequestIdForUserSwitchInProcess = resp.requestId; |
| } else { |
| resultStatus = UserSwitchResult.STATUS_ANDROID_FAILURE; |
| postSwitchHalResponse(resp.requestId, targetUserId); |
| } |
| break; |
| case SwitchUserStatus.FAILURE: |
| // HAL failed to switch user |
| resultStatus = UserSwitchResult.STATUS_HAL_FAILURE; |
| break; |
| default: |
| // Shouldn't happen because UserHalService validates the status |
| Slog.wtf(TAG, "Received invalid user switch status from HAL: " + resp); |
| } |
| |
| if (mRequestIdForUserSwitchInProcess == 0) { |
| mUserIdForUserSwitchInProcess = UserHandle.USER_NULL; |
| } |
| } |
| sendUserSwitchResult(receiver, halCallbackStatus, resultStatus, resp.errorMessage); |
| }); |
| } |
| |
| @Override |
| public void removeUser(@UserIdInt int userId, AndroidFuture<UserRemovalResult> receiver) { |
| removeUser(userId, /* hasCallerRestrictions= */ false, receiver); |
| } |
| |
| /** |
| * Internal implementation of {@code removeUser()}, which is used by both |
| * {@code ICarUserService} and {@code ICarDevicePolicyService}. |
| * |
| * @param userId user to be removed |
| * @param hasCallerRestrictions when {@code true}, if the caller user is not an admin, it can |
| * only remove itself. |
| * @param receiver to post results |
| */ |
| public void removeUser(@UserIdInt int userId, boolean hasCallerRestrictions, |
| AndroidFuture<UserRemovalResult> receiver) { |
| checkManageOrCreateUsersPermission("removeUser"); |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_REMOVE_USER_REQ, userId, |
| hasCallerRestrictions ? 1 : 0); |
| |
| if (hasCallerRestrictions) { |
| // Restrictions: non-admin user can only remove itself, admins have no restrictions |
| int callingUserId = Binder.getCallingUserHandle().getIdentifier(); |
| if (!mUserHandleHelper.isAdminUser(UserHandle.of(callingUserId)) |
| && userId != callingUserId) { |
| throw new SecurityException("Non-admin user " + callingUserId |
| + " can only remove itself"); |
| } |
| } |
| mHandler.post(() -> handleRemoveUser(userId, hasCallerRestrictions, receiver)); |
| } |
| |
| private void handleRemoveUser(@UserIdInt int userId, boolean hasCallerRestrictions, |
| AndroidFuture<UserRemovalResult> receiver) { |
| UserHandle user = mUserHandleHelper.getExistingUserHandle(userId); |
| if (user == null) { |
| sendUserRemovalResult(userId, UserRemovalResult.STATUS_USER_DOES_NOT_EXIST, receiver); |
| return; |
| } |
| android.hardware.automotive.vehicle.V2_0.UserInfo halUser = |
| new android.hardware.automotive.vehicle.V2_0.UserInfo(); |
| halUser.userId = user.getIdentifier(); |
| halUser.flags = UserHalHelper.convertFlags(mUserHandleHelper, user); |
| UsersInfo usersInfo = UserHalHelper.newUsersInfo(mUserManager, mUserHandleHelper); |
| |
| // check if the user is last admin user. |
| boolean isLastAdmin = false; |
| if (UserHalHelper.isAdmin(halUser.flags)) { |
| int size = usersInfo.existingUsers.size(); |
| int totalAdminUsers = 0; |
| for (int i = 0; i < size; i++) { |
| if (UserHalHelper.isAdmin(usersInfo.existingUsers.get(i).flags)) { |
| totalAdminUsers++; |
| } |
| } |
| if (totalAdminUsers == 1) { |
| isLastAdmin = true; |
| } |
| } |
| |
| // First remove user from android and then remove from HAL because HAL remove user is one |
| // way call. |
| // TODO(b/170887769): rename hasCallerRestrictions to fromCarDevicePolicyManager (or use an |
| // int / enum to indicate if it's called from CarUserManager or CarDevicePolicyManager), as |
| // it's counter-intuitive that it's "allowed even when disallowed" when it |
| // "has caller restrictions" |
| boolean evenWhenDisallowed = hasCallerRestrictions; |
| int result = UserManagerHelper.removeUserOrSetEphemeral(mUserManager, userId, |
| evenWhenDisallowed); |
| if (result == UserManagerHelper.REMOVE_RESULT_ERROR) { |
| sendUserRemovalResult(userId, UserRemovalResult.STATUS_ANDROID_FAILURE, receiver); |
| return; |
| } |
| |
| if (isLastAdmin) { |
| Slog.w(TAG, |
| "Last admin user successfully removed or set ephemeral. User Id: " + userId); |
| } |
| |
| switch (result) { |
| case UserManagerHelper.REMOVE_RESULT_REMOVED: |
| case UserManagerHelper.REMOVE_RESULT_ALREADY_BEING_REMOVED: |
| sendUserRemovalResult(userId, |
| isLastAdmin ? UserRemovalResult.STATUS_SUCCESSFUL_LAST_ADMIN_REMOVED |
| : UserRemovalResult.STATUS_SUCCESSFUL, receiver); |
| break; |
| case UserManagerHelper.REMOVE_RESULT_SET_EPHEMERAL: |
| sendUserRemovalResult(userId, |
| isLastAdmin ? UserRemovalResult.STATUS_SUCCESSFUL_LAST_ADMIN_SET_EPHEMERAL |
| : UserRemovalResult.STATUS_SUCCESSFUL_SET_EPHEMERAL, receiver); |
| break; |
| default: |
| sendUserRemovalResult(userId, UserRemovalResult.STATUS_ANDROID_FAILURE, receiver); |
| } |
| } |
| |
| /** |
| * Should be called by {@code ICarImpl} only. |
| */ |
| public void onUserRemoved(@NonNull UserHandle user) { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "onUserRemoved: " + user.toString()); |
| } |
| notifyHalUserRemoved(user); |
| } |
| |
| private void notifyHalUserRemoved(@NonNull UserHandle user) { |
| if (!isUserHalSupported()) return; |
| |
| if (user == null) { |
| Slog.wtf(TAG, "notifyHalUserRemoved() called for null user"); |
| return; |
| } |
| |
| int userId = user.getIdentifier(); |
| |
| if (userId == UserHandle.USER_NULL) { |
| Slog.wtf(TAG, "notifyHalUserRemoved() called for UserHandle.USER_NULL"); |
| return; |
| } |
| |
| synchronized (mLockUser) { |
| if (mFailedToCreateUserIds.get(userId)) { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "notifyHalUserRemoved(): skipping " + userId); |
| } |
| mFailedToCreateUserIds.delete(userId); |
| return; |
| } |
| } |
| |
| android.hardware.automotive.vehicle.V2_0.UserInfo halUser = |
| new android.hardware.automotive.vehicle.V2_0.UserInfo(); |
| halUser.userId = userId; |
| halUser.flags = UserHalHelper.convertFlags(mUserHandleHelper, user); |
| |
| RemoveUserRequest request = new RemoveUserRequest(); |
| request.removedUserInfo = halUser; |
| request.usersInfo = UserHalHelper.newUsersInfo(mUserManager, mUserHandleHelper); |
| mHal.removeUser(request); |
| } |
| |
| private void sendUserRemovalResult(@UserIdInt int userId, @UserRemovalResult.Status int result, |
| AndroidFuture<UserRemovalResult> receiver) { |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_REMOVE_USER_RESP, userId, result); |
| receiver.complete(new UserRemovalResult(result)); |
| } |
| |
| private void sendUserSwitchUiCallback(@UserIdInt int targetUserId) { |
| if (mUserSwitchUiReceiver == null) { |
| Slog.w(TAG, "No User switch UI receiver."); |
| return; |
| } |
| |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_SWITCH_USER_UI_REQ, targetUserId); |
| try { |
| mUserSwitchUiReceiver.send(targetUserId, null); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Error calling user switch UI receiver.", e); |
| } |
| } |
| |
| /** |
| * Used to create the initial user, even when it's disallowed by {@code DevicePolicyManager}. |
| */ |
| @Nullable |
| UserHandle createUserEvenWhenDisallowed(@Nullable String name, @NonNull String userType, |
| int flags) { |
| synchronized (mLockUser) { |
| if (mICarServiceHelper == null) { |
| Slog.wtf(TAG, "createUserEvenWhenDisallowed(): mICarServiceHelper not set yet", |
| new Exception()); |
| return null; |
| } |
| } |
| |
| try { |
| ICarServiceHelper iCarServiceHelper; |
| synchronized (mLockUser) { |
| iCarServiceHelper = mICarServiceHelper; |
| } |
| UserHandle user = iCarServiceHelper.createUserEvenWhenDisallowed(name, |
| userType, flags); |
| return user; |
| } catch (RemoteException e) { |
| Slog.e(TAG, "createUserEvenWhenDisallowed(" + UserHelperLite.safeName(name) + ", " |
| + userType + ", " + flags + ") failed", e); |
| return null; |
| } |
| } |
| |
| @Override |
| public void createUser(@Nullable String name, @NonNull String userType, int flags, |
| int timeoutMs, @NonNull AndroidFuture<UserCreationResult> receiver) { |
| createUser(name, userType, flags, timeoutMs, receiver, /* hasCallerRestrictions= */ false); |
| } |
| |
| /** |
| * Internal implementation of {@code createUser()}, which is used by both |
| * {@code ICarUserService} and {@code ICarDevicePolicyService}. |
| * |
| * @param hasCallerRestrictions when {@code true}, if the caller user is not an admin, it can |
| * only create admin users |
| */ |
| public void createUser(@Nullable String name, @NonNull String userType, int flags, |
| int timeoutMs, @NonNull AndroidFuture<UserCreationResult> receiver, |
| boolean hasCallerRestrictions) { |
| Objects.requireNonNull(userType, "user type cannot be null"); |
| Objects.requireNonNull(receiver, "receiver cannot be null"); |
| checkManageOrCreateUsersPermission(flags); |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_CREATE_USER_REQ, |
| UserHelperLite.safeName(name), userType, flags, timeoutMs, |
| hasCallerRestrictions ? 1 : 0); |
| mHandler.post(() -> handleCreateUser(name, userType, flags, timeoutMs, receiver, |
| hasCallerRestrictions)); |
| } |
| |
| private void handleCreateUser(@Nullable String name, @NonNull String userType, |
| int flags, int timeoutMs, @NonNull AndroidFuture<UserCreationResult> receiver, |
| boolean hasCallerRestrictions) { |
| boolean isGuest = userType.equals(UserManagerHelper.USER_TYPE_FULL_GUEST); |
| if (isGuest && flags != 0) { |
| // Non-zero flags are not allowed when creating a guest user. |
| Slogf.e(TAG, "Invalid flags %d specified when creating a guest user %s", flags, name); |
| sendUserCreationResultFailure(receiver, UserCreationResult.STATUS_INVALID_REQUEST); |
| return; |
| } |
| if (hasCallerRestrictions) { |
| // Restrictions: |
| // - type/flag can only be normal user, admin, or guest |
| // - non-admin user can only create non-admin users |
| |
| boolean validCombination; |
| switch (userType) { |
| case UserManager.USER_TYPE_FULL_SECONDARY: |
| validCombination = flags == 0 |
| || (flags & UserManagerHelper.FLAG_ADMIN) == UserManagerHelper.FLAG_ADMIN; |
| break; |
| case UserManagerHelper.USER_TYPE_FULL_GUEST: |
| validCombination = true; |
| break; |
| default: |
| validCombination = false; |
| } |
| if (!validCombination) { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "Invalid combination of user type(" + userType |
| + ") and flags (" + flags |
| + ") for caller with restrictions"); |
| } |
| sendUserCreationResultFailure(receiver, UserCreationResult.STATUS_INVALID_REQUEST); |
| return; |
| |
| } |
| |
| int callingUserId = Binder.getCallingUserHandle().getIdentifier(); |
| UserHandle callingUser = mUserHandleHelper.getExistingUserHandle(callingUserId); |
| if (!mUserHandleHelper.isAdminUser(callingUser) |
| && (flags & UserManagerHelper.FLAG_ADMIN) == UserManagerHelper.FLAG_ADMIN) { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "Non-admin user " + callingUserId |
| + " can only create non-admin users"); |
| } |
| sendUserCreationResultFailure(receiver, UserCreationResult.STATUS_INVALID_REQUEST); |
| return; |
| } |
| } |
| |
| UserHandle newUser; |
| try { |
| newUser = isGuest |
| ? UserManagerHelper.createGuest(mContext, mUserManager, name) |
| : UserManagerHelper.createUser(mUserManager, name, userType, flags); |
| if (newUser == null) { |
| Slog.w(TAG, "um.createUser() returned null for user of type " + userType |
| + " and flags " + flags); |
| sendUserCreationResultFailure(receiver, UserCreationResult.STATUS_ANDROID_FAILURE); |
| return; |
| } |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "Created user: " + newUser.toString()); |
| } |
| // TODO(b/196179969): enabled the log |
| //EventLog.writeEvent(EventLogTags.CAR_USER_SVC_CREATE_USER_USER_CREATED, newUser.id, |
| // UserHelperLite.safeName(newUser.name), newUser.userType, newUser.flags); |
| } catch (RuntimeException e) { |
| Slog.e(TAG, "Error creating user of type " + userType + " and flags" |
| + flags, e); |
| sendUserCreationResultFailure(receiver, UserCreationResult.STATUS_ANDROID_FAILURE); |
| return; |
| } |
| |
| if (!isUserHalSupported()) { |
| sendUserCreationResult(receiver, UserCreationResult.STATUS_SUCCESSFUL, newUser, null); |
| return; |
| } |
| |
| CreateUserRequest request = new CreateUserRequest(); |
| request.usersInfo = UserHalHelper.newUsersInfo(mUserManager, mUserHandleHelper); |
| if (!TextUtils.isEmpty(name)) { |
| request.newUserName = name; |
| } |
| request.newUserInfo.userId = newUser.getIdentifier(); |
| request.newUserInfo.flags = UserHalHelper.convertFlags(mUserHandleHelper, newUser); |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "Create user request: " + request); |
| } |
| |
| try { |
| mHal.createUser(request, timeoutMs, (status, resp) -> { |
| int resultStatus = UserCreationResult.STATUS_HAL_INTERNAL_FAILURE; |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "createUserResponse: status=" |
| + UserHalHelper.halCallbackStatusToString(status) + ", resp=" + resp); |
| } |
| UserHandle user = null; // user returned in the result |
| if (status != HalCallback.STATUS_OK) { |
| Slog.w(TAG, "invalid callback status (" |
| + UserHalHelper.halCallbackStatusToString(status) + ") for response " |
| + resp); |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_CREATE_USER_RESP, status, |
| resultStatus, resp.errorMessage); |
| removeCreatedUser(newUser, "HAL call failed with " |
| + UserHalHelper.halCallbackStatusToString(status)); |
| sendUserCreationResult(receiver, resultStatus, user, /* errorMsg= */ null); |
| return; |
| } |
| |
| switch (resp.status) { |
| case CreateUserStatus.SUCCESS: |
| resultStatus = UserCreationResult.STATUS_SUCCESSFUL; |
| user = newUser; |
| break; |
| case CreateUserStatus.FAILURE: |
| // HAL failed to switch user |
| resultStatus = UserCreationResult.STATUS_HAL_FAILURE; |
| break; |
| default: |
| // Shouldn't happen because UserHalService validates the status |
| Slog.wtf(TAG, "Received invalid user switch status from HAL: " + resp); |
| } |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_CREATE_USER_RESP, status, |
| resultStatus, resp.errorMessage); |
| if (user == null) { |
| removeCreatedUser(newUser, "HAL returned " |
| + UserCreationResult.statusToString(resultStatus)); |
| } |
| sendUserCreationResult(receiver, resultStatus, user, resp.errorMessage); |
| }); |
| } catch (Exception e) { |
| Slog.w(TAG, "mHal.createUser(" + request + ") failed", e); |
| removeCreatedUser(newUser, "mHal.createUser() failed"); |
| sendUserCreationResultFailure(receiver, UserCreationResult.STATUS_HAL_INTERNAL_FAILURE); |
| } |
| } |
| |
| private void removeCreatedUser(@NonNull UserHandle user, @NonNull String reason) { |
| Slogf.i(TAG, "removing %s reason: %s", user, reason); |
| |
| int userId = user.getIdentifier(); |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_CREATE_USER_USER_REMOVED, userId, reason); |
| |
| synchronized (mLockUser) { |
| mFailedToCreateUserIds.put(userId, true); |
| } |
| |
| try { |
| if (!mUserManager.removeUser(user)) { |
| Slogf.w(TAG, "Failed to remove user %s", user); |
| } |
| } catch (Exception e) { |
| Slogf.e(TAG, e, "Failed to remove user %s", user); |
| } |
| } |
| |
| @Override |
| public UserIdentificationAssociationResponse getUserIdentificationAssociation( |
| @UserIdentificationAssociationType int[] types) { |
| if (!isUserHalUserAssociationSupported()) { |
| return UserIdentificationAssociationResponse.forFailure(VEHICLE_HAL_NOT_SUPPORTED); |
| } |
| |
| Preconditions.checkArgument(!ArrayUtils.isEmpty(types), "must have at least one type"); |
| checkManageOrCreateUsersPermission("getUserIdentificationAssociation"); |
| |
| int uid = getCallingUid(); |
| int userId = getCallingUserHandle().getIdentifier(); |
| EventLog.writeEvent(EventLogTags.CAR_USER_MGR_GET_USER_AUTH_REQ, uid, userId); |
| |
| UserIdentificationGetRequest request = new UserIdentificationGetRequest(); |
| request.userInfo.userId = userId; |
| request.userInfo.flags = getHalUserInfoFlags(userId); |
| |
| request.numberAssociationTypes = types.length; |
| for (int i = 0; i < types.length; i++) { |
| request.associationTypes.add(types[i]); |
| } |
| |
| UserIdentificationResponse halResponse = mHal.getUserAssociation(request); |
| if (halResponse == null) { |
| Slog.w(TAG, "getUserIdentificationAssociation(): HAL returned null for " |
| + Arrays.toString(types)); |
| return UserIdentificationAssociationResponse.forFailure(); |
| } |
| |
| int[] values = new int[halResponse.associations.size()]; |
| for (int i = 0; i < values.length; i++) { |
| values[i] = halResponse.associations.get(i).value; |
| } |
| EventLog.writeEvent(EventLogTags.CAR_USER_MGR_GET_USER_AUTH_RESP, values.length); |
| |
| return UserIdentificationAssociationResponse.forSuccess(values, halResponse.errorMessage); |
| } |
| |
| @Override |
| public void setUserIdentificationAssociation(int timeoutMs, |
| @UserIdentificationAssociationType int[] types, |
| @UserIdentificationAssociationSetValue int[] values, |
| AndroidFuture<UserIdentificationAssociationResponse> result) { |
| if (!isUserHalUserAssociationSupported()) { |
| result.complete( |
| UserIdentificationAssociationResponse.forFailure(VEHICLE_HAL_NOT_SUPPORTED)); |
| return; |
| } |
| |
| Preconditions.checkArgument(!ArrayUtils.isEmpty(types), "must have at least one type"); |
| Preconditions.checkArgument(!ArrayUtils.isEmpty(values), "must have at least one value"); |
| if (types.length != values.length) { |
| throw new IllegalArgumentException("types (" + Arrays.toString(types) + ") and values (" |
| + Arrays.toString(values) + ") should have the same length"); |
| } |
| checkManageOrCreateUsersPermission("setUserIdentificationAssociation"); |
| |
| int uid = getCallingUid(); |
| int userId = getCallingUserHandle().getIdentifier(); |
| EventLog.writeEvent(EventLogTags.CAR_USER_MGR_SET_USER_AUTH_REQ, uid, userId, types.length); |
| |
| UserIdentificationSetRequest request = new UserIdentificationSetRequest(); |
| request.userInfo.userId = userId; |
| request.userInfo.flags = getHalUserInfoFlags(userId); |
| |
| request.numberAssociations = types.length; |
| for (int i = 0; i < types.length; i++) { |
| UserIdentificationSetAssociation association = new UserIdentificationSetAssociation(); |
| association.type = types[i]; |
| association.value = values[i]; |
| request.associations.add(association); |
| } |
| |
| mHal.setUserAssociation(timeoutMs, request, (status, resp) -> { |
| if (status != HalCallback.STATUS_OK) { |
| Slog.w(TAG, "setUserIdentificationAssociation(): invalid callback status (" |
| + UserHalHelper.halCallbackStatusToString(status) + ") for response " |
| + resp); |
| if (resp == null || TextUtils.isEmpty(resp.errorMessage)) { |
| EventLog.writeEvent(EventLogTags.CAR_USER_MGR_SET_USER_AUTH_RESP, 0); |
| result.complete(UserIdentificationAssociationResponse.forFailure()); |
| return; |
| } |
| EventLog.writeEvent(EventLogTags.CAR_USER_MGR_SET_USER_AUTH_RESP, 0, |
| resp.errorMessage); |
| result.complete( |
| UserIdentificationAssociationResponse.forFailure(resp.errorMessage)); |
| return; |
| } |
| int respSize = resp.associations.size(); |
| EventLog.writeEvent(EventLogTags.CAR_USER_MGR_SET_USER_AUTH_RESP, respSize, |
| resp.errorMessage); |
| |
| int[] responseTypes = new int[respSize]; |
| for (int i = 0; i < respSize; i++) { |
| responseTypes[i] = resp.associations.get(i).value; |
| } |
| UserIdentificationAssociationResponse response = UserIdentificationAssociationResponse |
| .forSuccess(responseTypes, resp.errorMessage); |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "setUserIdentificationAssociation(): resp= " + resp |
| + ", converted=" + response); |
| } |
| result.complete(response); |
| }); |
| } |
| |
| /** |
| * Gets the User HAL flags for the given user. |
| * |
| * @throws IllegalArgumentException if the user does not exist. |
| */ |
| private int getHalUserInfoFlags(@UserIdInt int userId) { |
| UserHandle user = mUserHandleHelper.getExistingUserHandle(userId); |
| Preconditions.checkArgument(user != null, "no user for id %d", userId); |
| return UserHalHelper.convertFlags(mUserHandleHelper, user); |
| } |
| |
| static void sendUserSwitchResult(@NonNull AndroidFuture<UserSwitchResult> receiver, |
| @UserSwitchResult.Status int userSwitchStatus) { |
| sendUserSwitchResult(receiver, HalCallback.STATUS_INVALID, userSwitchStatus, |
| /* errorMessage= */ null); |
| } |
| |
| static void sendUserSwitchResult(@NonNull AndroidFuture<UserSwitchResult> receiver, |
| @HalCallback.HalCallbackStatus int halCallbackStatus, |
| @UserSwitchResult.Status int userSwitchStatus, @Nullable String errorMessage) { |
| if (errorMessage != null) { |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_SWITCH_USER_RESP, halCallbackStatus, |
| userSwitchStatus, errorMessage); |
| } else { |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_SWITCH_USER_RESP, halCallbackStatus, |
| userSwitchStatus); |
| } |
| receiver.complete(new UserSwitchResult(userSwitchStatus, errorMessage)); |
| } |
| |
| static void sendUserCreationResultFailure(@NonNull AndroidFuture<UserCreationResult> receiver, |
| @UserCreationResult.Status int status) { |
| sendUserCreationResult(receiver, status, /* user= */ null, /* errorMessage= */ null); |
| } |
| |
| private static void sendUserCreationResult(@NonNull AndroidFuture<UserCreationResult> receiver, |
| @UserCreationResult.Status int status, @NonNull UserHandle user, |
| @Nullable String errorMessage) { |
| if (TextUtils.isEmpty(errorMessage)) { |
| errorMessage = null; |
| } |
| receiver.complete(new UserCreationResult(status, user, errorMessage)); |
| } |
| |
| /** |
| * Calls activity manager for user switch. |
| * |
| * <p><b>NOTE</b> This method is meant to be called just by UserHalService. |
| * |
| * @param requestId for the user switch request |
| * @param targetUserId of the target user |
| * |
| * @hide |
| */ |
| public void switchAndroidUserFromHal(int requestId, @UserIdInt int targetUserId) { |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_SWITCH_USER_FROM_HAL_REQ, requestId, |
| targetUserId); |
| Slog.i(TAG, "User hal requested a user switch. Target user id " + targetUserId); |
| |
| boolean result = mAm.switchUser(UserHandle.of(targetUserId)); |
| if (result) { |
| updateUserSwitchInProcess(requestId, targetUserId); |
| } else { |
| postSwitchHalResponse(requestId, targetUserId); |
| } |
| } |
| |
| private void updateUserSwitchInProcess(int requestId, @UserIdInt int targetUserId) { |
| synchronized (mLockUser) { |
| if (mUserIdForUserSwitchInProcess != UserHandle.USER_NULL) { |
| // Some other user switch is in process. |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "User switch for user: " + mUserIdForUserSwitchInProcess |
| + " is in process. Abandoning it as a new user switch is requested" |
| + " for the target user: " + targetUserId); |
| } |
| } |
| mUserIdForUserSwitchInProcess = targetUserId; |
| mRequestIdForUserSwitchInProcess = requestId; |
| } |
| } |
| |
| private void postSwitchHalResponse(int requestId, @UserIdInt int targetUserId) { |
| if (!isUserHalSupported()) return; |
| |
| UsersInfo usersInfo = UserHalHelper.newUsersInfo(mUserManager, mUserHandleHelper); |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_POST_SWITCH_USER_REQ, requestId, |
| targetUserId, usersInfo.currentUser.userId); |
| SwitchUserRequest request = createUserSwitchRequest(targetUserId, usersInfo); |
| request.requestId = requestId; |
| mHal.postSwitchResponse(request); |
| } |
| |
| private SwitchUserRequest createUserSwitchRequest(@UserIdInt int targetUserId, |
| @NonNull UsersInfo usersInfo) { |
| UserHandle targetUser = mUserHandleHelper.getExistingUserHandle(targetUserId); |
| android.hardware.automotive.vehicle.V2_0.UserInfo halTargetUser = |
| new android.hardware.automotive.vehicle.V2_0.UserInfo(); |
| halTargetUser.userId = targetUser.getIdentifier(); |
| halTargetUser.flags = UserHalHelper.convertFlags(mUserHandleHelper, targetUser); |
| SwitchUserRequest request = new SwitchUserRequest(); |
| request.targetUser = halTargetUser; |
| request.usersInfo = usersInfo; |
| return request; |
| } |
| |
| /** |
| * Checks if the User HAL is supported. |
| */ |
| public boolean isUserHalSupported() { |
| return mHal.isSupported(); |
| } |
| |
| /** |
| * Checks if the User HAL user association is supported. |
| */ |
| @Override |
| public boolean isUserHalUserAssociationSupported() { |
| return mHal.isUserAssociationSupported(); |
| } |
| |
| /** |
| * Sets a callback which is invoked before user switch. |
| * |
| * <p> |
| * This method should only be called by the Car System UI. The purpose of this call is to notify |
| * Car System UI to show the user switch UI before the user switch. |
| */ |
| @Override |
| public void setUserSwitchUiCallback(@NonNull ICarResultReceiver receiver) { |
| checkManageUsersPermission("setUserSwitchUiCallback"); |
| |
| // Confirm that caller is system UI. |
| String systemUiPackageName = PackageManagerHelper.getSystemUiPackageName(mContext); |
| |
| try { |
| int systemUiUid = mContext |
| .createContextAsUser(UserHandle.SYSTEM, /* flags= */ 0).getPackageManager() |
| .getPackageUid(systemUiPackageName, PackageManager.MATCH_SYSTEM_ONLY); |
| int callerUid = Binder.getCallingUid(); |
| if (systemUiUid != callerUid) { |
| throw new SecurityException("Invalid caller. Only" + systemUiPackageName |
| + " is allowed to make this call"); |
| } |
| } catch (NameNotFoundException e) { |
| throw new IllegalStateException("Package " + systemUiPackageName + " not found."); |
| } |
| |
| mUserSwitchUiReceiver = receiver; |
| } |
| |
| private void updateDefaultUserRestriction() { |
| // We want to set restrictions on system and guest users only once. These are persisted |
| // onto disk, so it's sufficient to do it once + we minimize the number of disk writes. |
| if (Settings.Global.getInt(mContext.getContentResolver(), |
| CarSettings.Global.DEFAULT_USER_RESTRICTIONS_SET, /* default= */ 0) != 0) { |
| return; |
| } |
| // Only apply the system user restrictions if the system user is headless. |
| if (UserManager.isHeadlessSystemUserMode()) { |
| setSystemUserRestrictions(); |
| } |
| Settings.Global.putInt(mContext.getContentResolver(), |
| CarSettings.Global.DEFAULT_USER_RESTRICTIONS_SET, 1); |
| } |
| |
| private boolean isPersistentUser(@UserIdInt int userId) { |
| return !mUserHandleHelper.isEphemeralUser(UserHandle.of(userId)); |
| } |
| |
| /** |
| * Adds a new {@link UserLifecycleListener} to listen to user activity events. |
| */ |
| public void addUserLifecycleListener(@NonNull UserLifecycleListener listener) { |
| Objects.requireNonNull(listener, "listener cannot be null"); |
| mHandler.post(() -> mUserLifecycleListeners.add(listener)); |
| } |
| |
| /** |
| * Removes previously added {@link UserLifecycleListener}. |
| */ |
| public void removeUserLifecycleListener(@NonNull UserLifecycleListener listener) { |
| Objects.requireNonNull(listener, "listener cannot be null"); |
| mHandler.post(() -> mUserLifecycleListeners.remove(listener)); |
| } |
| |
| private void onUserUnlocked(@UserIdInt int userId) { |
| ArrayList<Runnable> tasks = null; |
| synchronized (mLockUser) { |
| sendPostSwitchToHalLocked(userId); |
| if (userId == UserHandle.USER_SYSTEM) { |
| if (!mUser0Unlocked) { // user 0, unlocked, do this only once |
| updateDefaultUserRestriction(); |
| tasks = new ArrayList<>(mUser0UnlockTasks); |
| mUser0UnlockTasks.clear(); |
| mUser0Unlocked = true; |
| } |
| } else { // none user0 |
| Integer user = userId; |
| if (isPersistentUser(userId)) { |
| // current foreground user should stay in top priority. |
| if (userId == ActivityManager.getCurrentUser()) { |
| mBackgroundUsersToRestart.remove(user); |
| mBackgroundUsersToRestart.add(0, user); |
| } |
| // -1 for user 0 |
| if (mBackgroundUsersToRestart.size() > (mMaxRunningUsers - 1)) { |
| int userToDrop = mBackgroundUsersToRestart.get( |
| mBackgroundUsersToRestart.size() - 1); |
| Slog.i(TAG, "New user unlocked:" + userId |
| + ", dropping least recently user from restart list:" + userToDrop); |
| // Drop the least recently used user. |
| mBackgroundUsersToRestart.remove(mBackgroundUsersToRestart.size() - 1); |
| } |
| } |
| } |
| } |
| if (tasks != null && tasks.size() > 0) { |
| Slog.d(TAG, "User0 unlocked, run queued tasks:" + tasks.size()); |
| for (Runnable r : tasks) { |
| r.run(); |
| } |
| } |
| } |
| |
| /** |
| * Starts the specified user in the background. |
| * |
| * @param userId user to start in background |
| * @param receiver to post results |
| */ |
| public void startUserInBackground(@UserIdInt int userId, |
| @NonNull AndroidFuture<UserStartResult> receiver) { |
| checkManageOrCreateUsersPermission("startUserInBackground"); |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_START_USER_IN_BACKGROUND_REQ, userId); |
| |
| mHandler.post(() -> handleStartUserInBackground(userId, receiver)); |
| } |
| |
| private void handleStartUserInBackground(@UserIdInt int userId, |
| @NonNull AndroidFuture<UserStartResult> receiver) { |
| // If the requested user is the current user, do nothing and return success. |
| if (ActivityManager.getCurrentUser() == userId) { |
| sendUserStartResult( |
| userId, UserStartResult.STATUS_SUCCESSFUL_USER_IS_CURRENT_USER, receiver); |
| return; |
| } |
| // If requested user does not exist, return error. |
| if (mUserHandleHelper.getExistingUserHandle(userId) == null) { |
| Slogf.w(TAG, "User %d does not exist", userId); |
| sendUserStartResult(userId, UserStartResult.STATUS_USER_DOES_NOT_EXIST, receiver); |
| return; |
| } |
| |
| if (!mAmHelper.startUserInBackground(userId)) { |
| Slogf.w(TAG, "Failed to start user %d in background", userId); |
| sendUserStartResult(userId, UserStartResult.STATUS_ANDROID_FAILURE, receiver); |
| return; |
| } |
| |
| // TODO(b/181331178): We are not updating mBackgroundUsersToRestart or |
| // mBackgroundUsersRestartedHere, which were only used for the garage mode. Consider |
| // renaming them to make it more clear. |
| sendUserStartResult(userId, UserStartResult.STATUS_SUCCESSFUL, receiver); |
| } |
| |
| private void sendUserStartResult(@UserIdInt int userId, @UserStartResult.Status int result, |
| @NonNull AndroidFuture<UserStartResult> receiver) { |
| EventLog.writeEvent( |
| EventLogTags.CAR_USER_SVC_START_USER_IN_BACKGROUND_RESP, userId, result); |
| receiver.complete(new UserStartResult(result)); |
| } |
| |
| /** |
| * Starts all background users that were active in system. |
| * |
| * @return list of background users started successfully. |
| */ |
| @NonNull |
| public ArrayList<Integer> startAllBackgroundUsersInGarageMode() { |
| synchronized (mLockUser) { |
| if (!mStartBackgroundUsersOnGarageMode) { |
| Slogf.i(TAG, "Background users are not started as mStartBackgroundUsersOnGarageMode" |
| + " is false."); |
| return new ArrayList<>(); |
| } |
| } |
| |
| ArrayList<Integer> users; |
| synchronized (mLockUser) { |
| users = new ArrayList<>(mBackgroundUsersToRestart); |
| mBackgroundUsersRestartedHere.clear(); |
| mBackgroundUsersRestartedHere.addAll(mBackgroundUsersToRestart); |
| } |
| ArrayList<Integer> startedUsers = new ArrayList<>(); |
| for (Integer user : users) { |
| if (user == ActivityManager.getCurrentUser()) { |
| continue; |
| } |
| if (mAmHelper.startUserInBackground(user)) { |
| if (mUserManager.isUserUnlockingOrUnlocked(UserHandle.of(user))) { |
| // already unlocked / unlocking. No need to unlock. |
| startedUsers.add(user); |
| } else if (mAmHelper.unlockUser(user)) { |
| startedUsers.add(user); |
| } else { // started but cannot unlock |
| Slog.w(TAG, "Background user started but cannot be unlocked:" + user); |
| if (mUserManager.isUserRunning(UserHandle.of(user))) { |
| // add to started list so that it can be stopped later. |
| startedUsers.add(user); |
| } |
| } |
| } |
| } |
| // Keep only users that were re-started in mBackgroundUsersRestartedHere |
| synchronized (mLockUser) { |
| ArrayList<Integer> usersToRemove = new ArrayList<>(); |
| for (Integer user : mBackgroundUsersToRestart) { |
| if (!startedUsers.contains(user)) { |
| usersToRemove.add(user); |
| } |
| } |
| mBackgroundUsersRestartedHere.removeAll(usersToRemove); |
| } |
| return startedUsers; |
| } |
| |
| /** |
| * Stops the specified background user. |
| * |
| * @param userId user to stop |
| * @param receiver to post results |
| */ |
| public void stopUser(@UserIdInt int userId, @NonNull AndroidFuture<UserStopResult> receiver) { |
| checkManageOrCreateUsersPermission("stopUser"); |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_STOP_USER_REQ, userId); |
| |
| mHandler.post(() -> handleStopUser(userId, receiver)); |
| } |
| |
| private void handleStopUser( |
| @UserIdInt int userId, @NonNull AndroidFuture<UserStopResult> receiver) { |
| @UserStopResult.Status int userStopStatus = stopBackgroundUserInternal(userId); |
| sendUserStopResult(userId, userStopStatus, receiver); |
| } |
| |
| private void sendUserStopResult(@UserIdInt int userId, @UserStopResult.Status int result, |
| @NonNull AndroidFuture<UserStopResult> receiver) { |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_STOP_USER_RESP, userId, result); |
| receiver.complete(new UserStopResult(result)); |
| } |
| |
| private @UserStopResult.Status int stopBackgroundUserInternal(@UserIdInt int userId) { |
| int r = mAmHelper.stopUserWithDelayedLocking(userId, true); |
| switch(r) { |
| case USER_OP_SUCCESS: |
| return UserStopResult.STATUS_SUCCESSFUL; |
| case USER_OP_ERROR_IS_SYSTEM: |
| Slogf.w(TAG, "Cannot stop the system user: %d", userId); |
| return UserStopResult.STATUS_FAILURE_SYSTEM_USER; |
| case USER_OP_IS_CURRENT: |
| Slogf.w(TAG, "Cannot stop the current user: %d", userId); |
| return UserStopResult.STATUS_FAILURE_CURRENT_USER; |
| case USER_OP_UNKNOWN_USER: |
| Slogf.w(TAG, "Cannot stop the user that does not exist: %d", userId); |
| return UserStopResult.STATUS_USER_DOES_NOT_EXIST; |
| default: |
| Slogf.w(TAG, "stopUser failed, user: %d, err: %d", userId, r); |
| } |
| return UserStopResult.STATUS_ANDROID_FAILURE; |
| } |
| |
| /** |
| * Sets boolean to control background user operations during garage mode. |
| */ |
| public void setStartBackgroundUsersOnGarageMode(boolean enable) { |
| synchronized (mLockUser) { |
| mStartBackgroundUsersOnGarageMode = enable; |
| } |
| } |
| |
| /** |
| * Stops a background user. |
| * |
| * @return whether stopping succeeds. |
| */ |
| public boolean stopBackgroundUserInGagageMode(@UserIdInt int userId) { |
| synchronized (mLockUser) { |
| if (!mStartBackgroundUsersOnGarageMode) { |
| Slogf.i(TAG, "Background users are not stopped as mStartBackgroundUsersOnGarageMode" |
| + " is false."); |
| return false; |
| } |
| } |
| |
| @UserStopResult.Status int userStopStatus = stopBackgroundUserInternal(userId); |
| if (UserStopResult.isSuccess(userStopStatus)) { |
| // Remove the stopped user from the mBackgroundUserRestartedHere list. |
| synchronized (mLockUser) { |
| mBackgroundUsersRestartedHere.remove(Integer.valueOf(userId)); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Notifies all registered {@link UserLifecycleListener} with the event passed as argument. |
| */ |
| public void onUserLifecycleEvent(@UserLifecycleEventType int eventType, |
| @UserIdInt int fromUserId, @UserIdInt int toUserId) { |
| int userId = toUserId; |
| |
| // Handle special cases first... |
| if (eventType == CarUserManager.USER_LIFECYCLE_EVENT_TYPE_SWITCHING) { |
| onUserSwitching(fromUserId, toUserId); |
| } else if (eventType == CarUserManager.USER_LIFECYCLE_EVENT_TYPE_UNLOCKED) { |
| onUserUnlocked(userId); |
| } |
| |
| // ...then notify listeners. |
| UserLifecycleEvent event = new UserLifecycleEvent(eventType, fromUserId, userId); |
| |
| mHandler.post(() -> { |
| handleNotifyServiceUserLifecycleListeners(event); |
| handleNotifyAppUserLifecycleListeners(event); |
| }); |
| } |
| |
| private void sendPostSwitchToHalLocked(@UserIdInt int userId) { |
| if (mUserIdForUserSwitchInProcess == UserHandle.USER_NULL |
| || mUserIdForUserSwitchInProcess != userId |
| || mRequestIdForUserSwitchInProcess == 0) { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "No user switch request Id. No android post switch sent."); |
| } |
| return; |
| } |
| postSwitchHalResponse(mRequestIdForUserSwitchInProcess, mUserIdForUserSwitchInProcess); |
| mUserIdForUserSwitchInProcess = UserHandle.USER_NULL; |
| mRequestIdForUserSwitchInProcess = 0; |
| } |
| |
| private void handleNotifyAppUserLifecycleListeners(UserLifecycleEvent event) { |
| int listenersSize = mAppLifecycleListeners.size(); |
| if (listenersSize == 0) { |
| Slogf.d(TAG, "No app listener to be notified of %s", event); |
| return; |
| } |
| // Must use a different TimingsTraceLog because it's another thread |
| Slogf.d(TAG, "Notifying %d app listeners of %s", listenersSize, event); |
| int userId = event.getUserId(); |
| TimingsTraceLog t = new TimingsTraceLog(TAG, TraceHelper.TRACE_TAG_CAR_SERVICE); |
| int eventType = event.getEventType(); |
| t.traceBegin("notify-app-listeners-user-" + userId + "-event-" + eventType); |
| for (int i = 0; i < listenersSize; i++) { |
| AppLifecycleListener listener = mAppLifecycleListeners.valueAt(i); |
| Bundle data = new Bundle(); |
| data.putInt(CarUserManager.BUNDLE_PARAM_ACTION, eventType); |
| |
| int fromUserId = event.getPreviousUserId(); |
| if (fromUserId != UserHandle.USER_NULL) { |
| data.putInt(CarUserManager.BUNDLE_PARAM_PREVIOUS_USER_ID, fromUserId); |
| } |
| Slogf.d(TAG, "Notifying listener %s", listener); |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_NOTIFY_APP_LIFECYCLE_LISTENER, |
| listener.uid, listener.packageName, eventType, fromUserId, userId); |
| try { |
| t.traceBegin("notify-app-listener-" + listener.toShortString()); |
| listener.receiver.send(userId, data); |
| } catch (RemoteException e) { |
| Slogf.e(TAG, e, "Error calling lifecycle listener %s", listener); |
| } finally { |
| t.traceEnd(); |
| } |
| } |
| t.traceEnd(); // notify-app-listeners-user-USERID-event-EVENT_TYPE |
| } |
| |
| private void handleNotifyServiceUserLifecycleListeners(UserLifecycleEvent event) { |
| TimingsTraceLog t = new TimingsTraceLog(TAG, TraceHelper.TRACE_TAG_CAR_SERVICE); |
| if (mUserLifecycleListeners.isEmpty()) { |
| Slog.w(TAG, "Not notifying internal UserLifecycleListeners"); |
| return; |
| } else if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "Notifying " + mUserLifecycleListeners.size() |
| + " service listeners of " + event); |
| } |
| |
| int userId = event.getUserId(); |
| int eventType = event.getEventType(); |
| t.traceBegin("notify-listeners-user-" + userId + "-event-" + eventType); |
| for (UserLifecycleListener listener : mUserLifecycleListeners) { |
| String listenerName = FunctionalUtils.getLambdaName(listener); |
| EventLog.writeEvent(EventLogTags.CAR_USER_SVC_NOTIFY_INTERNAL_LIFECYCLE_LISTENER, |
| listenerName, eventType, event.getPreviousUserId(), userId); |
| try { |
| t.traceBegin("notify-listener-" + listenerName); |
| listener.onEvent(event); |
| } catch (RuntimeException e) { |
| Slog.e(TAG, |
| "Exception raised when invoking onEvent for " + listenerName, e); |
| } finally { |
| t.traceEnd(); |
| } |
| } |
| t.traceEnd(); // notify-listeners-user-USERID-event-EVENT_TYPE |
| } |
| |
| private void onUserSwitching(@UserIdInt int fromUserId, @UserIdInt int toUserId) { |
| Slog.i(TAG, "onUserSwitching() callback for user " + toUserId); |
| TimingsTraceLog t = new TimingsTraceLog(TAG, TraceHelper.TRACE_TAG_CAR_SERVICE); |
| t.traceBegin("onUserSwitching-" + toUserId); |
| |
| // Switch HAL users if user switch is not requested by CarUserService |
| notifyHalLegacySwitch(fromUserId, toUserId); |
| |
| mInitialUserSetter.setLastActiveUser(toUserId); |
| |
| t.traceEnd(); |
| } |
| |
| private void notifyHalLegacySwitch(@UserIdInt int fromUserId, @UserIdInt int toUserId) { |
| synchronized (mLockUser) { |
| if (mUserIdForUserSwitchInProcess != UserHandle.USER_NULL) { |
| if (Log.isLoggable(TAG, Log.DEBUG)) { |
| Slog.d(TAG, "notifyHalLegacySwitch(" + fromUserId + ", " + toUserId |
| + "): not needed, normal switch for " + mUserIdForUserSwitchInProcess); |
| } |
| return; |
| } |
| } |
| |
| if (!isUserHalSupported()) return; |
| |
| // switch HAL user |
| UsersInfo usersInfo = UserHalHelper.newUsersInfo(mUserManager, mUserHandleHelper, |
| fromUserId); |
| SwitchUserRequest request = createUserSwitchRequest(toUserId, usersInfo); |
| mHal.legacyUserSwitch(request); |
| } |
| |
| /** |
| * Runs the given runnable when user 0 is unlocked. If user 0 is already unlocked, it is |
| * run inside this call. |
| * |
| * @param r Runnable to run. |
| */ |
| public void runOnUser0Unlock(@NonNull Runnable r) { |
| Objects.requireNonNull(r, "runnable cannot be null"); |
| boolean runNow = false; |
| synchronized (mLockUser) { |
| if (mUser0Unlocked) { |
| runNow = true; |
| } else { |
| mUser0UnlockTasks.add(r); |
| } |
| } |
| if (runNow) { |
| r.run(); |
| } |
| } |
| |
| @VisibleForTesting |
| @NonNull |
| ArrayList<Integer> getBackgroundUsersToRestart() { |
| ArrayList<Integer> backgroundUsersToRestart = null; |
| synchronized (mLockUser) { |
| backgroundUsersToRestart = new ArrayList<>(mBackgroundUsersToRestart); |
| } |
| return backgroundUsersToRestart; |
| } |
| |
| private void setSystemUserRestrictions() { |
| // Disable Location service for system user. |
| LocationManager locationManager = |
| (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE); |
| locationManager.setLocationEnabledForUser( |
| /* enabled= */ false, UserHandle.of(UserHandle.USER_SYSTEM)); |
| } |
| |
| private void checkInteractAcrossUsersPermission(String message) { |
| checkHasAtLeastOnePermissionGranted(mContext, message, |
| android.Manifest.permission.INTERACT_ACROSS_USERS, |
| android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); |
| } |
| |
| /** |
| * Manages the required number of pre-created users. |
| */ |
| @Override |
| public void updatePreCreatedUsers() { |
| checkManageOrCreateUsersPermission("preCreateUsers"); |
| preCreateUsersInternal(); |
| } |
| |
| private void preCreateUsersInternal() { |
| mHandler.post(() -> mUserPreCreator.managePreCreatedUsers()); |
| } |
| |
| // TODO(b/167698977): members below were copied from UserManagerService; it would be better to |
| // move them to some internal android.os class instead. |
| private static final int ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION = |
| UserManagerHelper.FLAG_MANAGED_PROFILE |
| | UserManagerHelper.FLAG_PROFILE |
| | UserManagerHelper.FLAG_EPHEMERAL |
| | UserManagerHelper.FLAG_RESTRICTED |
| | UserManagerHelper.FLAG_GUEST |
| | UserManagerHelper.FLAG_DEMO |
| | UserManagerHelper.FLAG_FULL; |
| |
| static void checkManageUsersPermission(String message) { |
| if (!hasManageUsersPermission()) { |
| throw new SecurityException("You need " + MANAGE_USERS + " permission to: " + message); |
| } |
| } |
| |
| private static void checkManageOrCreateUsersPermission(String message) { |
| if (!hasManageOrCreateUsersPermission()) { |
| throw new SecurityException( |
| "You either need " + MANAGE_USERS + " or " + CREATE_USERS + " permission to: " |
| + message); |
| } |
| } |
| |
| private static void checkManageOrCreateUsersPermission(int creationFlags) { |
| if ((creationFlags & ~ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION) == 0) { |
| if (!hasManageOrCreateUsersPermission()) { |
| throw new SecurityException("You either need " + MANAGE_USERS + " or " |
| + CREATE_USERS + "permission to create a user with flags " |
| + creationFlags); |
| } |
| } else if (!hasManageUsersPermission()) { |
| throw new SecurityException("You need " + MANAGE_USERS + " permission to create a user" |
| + " with flags " + creationFlags); |
| } |
| } |
| |
| private static boolean hasManageUsersPermission() { |
| final int callingUid = Binder.getCallingUid(); |
| return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) |
| || callingUid == Process.ROOT_UID |
| || hasPermissionGranted(MANAGE_USERS, callingUid); |
| } |
| |
| private static boolean hasManageUsersOrPermission(String alternativePermission) { |
| final int callingUid = Binder.getCallingUid(); |
| return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) |
| || callingUid == Process.ROOT_UID |
| || hasPermissionGranted(MANAGE_USERS, callingUid) |
| || hasPermissionGranted(alternativePermission, callingUid); |
| } |
| |
| private static boolean hasManageOrCreateUsersPermission() { |
| return hasManageUsersOrPermission(CREATE_USERS); |
| } |
| |
| private static boolean hasPermissionGranted(String permission, int uid) { |
| return ActivityManager.checkComponentPermission(permission, uid, /* owningUid= */ -1, |
| /* exported= */ true) == PackageManager.PERMISSION_GRANTED; |
| } |
| } |
