| /* |
| * Copyright (C) 2011 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.pm; |
| |
| import android.Manifest; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.app.Activity; |
| import android.app.ActivityManager; |
| import android.app.ActivityManagerInternal; |
| import android.app.ActivityManagerNative; |
| import android.app.IActivityManager; |
| import android.app.IStopUserCallback; |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.pm.UserInfo; |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.Debug; |
| import android.os.Environment; |
| import android.os.FileUtils; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.IUserManager; |
| import android.os.Message; |
| import android.os.ParcelFileDescriptor; |
| import android.os.Parcelable; |
| import android.os.PersistableBundle; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.ResultReceiver; |
| import android.os.SELinux; |
| import android.os.ServiceManager; |
| import android.os.ShellCommand; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.os.UserManagerInternal; |
| import android.os.UserManagerInternal.UserRestrictionsListener; |
| import android.os.storage.StorageManager; |
| import android.os.storage.VolumeInfo; |
| import android.system.ErrnoException; |
| import android.system.Os; |
| import android.system.OsConstants; |
| import android.util.AtomicFile; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.SparseBooleanArray; |
| import android.util.TimeUtils; |
| import android.util.Xml; |
| |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.internal.app.IAppOpsService; |
| import com.android.internal.logging.MetricsLogger; |
| import com.android.internal.util.FastXmlSerializer; |
| import com.android.internal.util.Preconditions; |
| import com.android.internal.util.XmlUtils; |
| import com.android.internal.widget.LockPatternUtils; |
| import com.android.server.LocalServices; |
| |
| import libcore.io.IoUtils; |
| import libcore.util.Objects; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| import org.xmlpull.v1.XmlSerializer; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.nio.charset.StandardCharsets; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Service for {@link UserManager}. |
| * |
| * Method naming convention: |
| * <ul> |
| * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. |
| * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. |
| * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. |
| * </ul> |
| */ |
| public class UserManagerService extends IUserManager.Stub { |
| private static final String LOG_TAG = "UserManagerService"; |
| static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE |
| private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE |
| |
| private static final String TAG_NAME = "name"; |
| private static final String TAG_ACCOUNT = "account"; |
| private static final String ATTR_FLAGS = "flags"; |
| private static final String ATTR_ICON_PATH = "icon"; |
| private static final String ATTR_ID = "id"; |
| private static final String ATTR_CREATION_TIME = "created"; |
| private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; |
| private static final String ATTR_SERIAL_NO = "serialNumber"; |
| private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; |
| private static final String ATTR_PARTIAL = "partial"; |
| private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; |
| private static final String ATTR_USER_VERSION = "version"; |
| private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; |
| private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; |
| private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; |
| private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; |
| private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; |
| private static final String TAG_USERS = "users"; |
| private static final String TAG_USER = "user"; |
| private static final String TAG_RESTRICTIONS = "restrictions"; |
| private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; |
| private static final String TAG_ENTRY = "entry"; |
| private static final String TAG_VALUE = "value"; |
| private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; |
| private static final String ATTR_KEY = "key"; |
| private static final String ATTR_VALUE_TYPE = "type"; |
| private static final String ATTR_MULTIPLE = "m"; |
| |
| private static final String ATTR_TYPE_STRING_ARRAY = "sa"; |
| private static final String ATTR_TYPE_STRING = "s"; |
| private static final String ATTR_TYPE_BOOLEAN = "b"; |
| private static final String ATTR_TYPE_INTEGER = "i"; |
| private static final String ATTR_TYPE_BUNDLE = "B"; |
| private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; |
| |
| private static final String USER_INFO_DIR = "system" + File.separator + "users"; |
| private static final String USER_LIST_FILENAME = "userlist.xml"; |
| private static final String USER_PHOTO_FILENAME = "photo.png"; |
| private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; |
| |
| private static final String RESTRICTIONS_FILE_PREFIX = "res_"; |
| private static final String XML_SUFFIX = ".xml"; |
| |
| private static final int MIN_USER_ID = 10; |
| // We need to keep process uid within Integer.MAX_VALUE. |
| private static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; |
| |
| private static final int USER_VERSION = 6; |
| |
| private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms |
| |
| // Maximum number of managed profiles permitted per user is 1. This cannot be increased |
| // without first making sure that the rest of the framework is prepared for it. |
| private static final int MAX_MANAGED_PROFILES = 1; |
| |
| static final int WRITE_USER_MSG = 1; |
| static final int WRITE_USER_DELAY = 2*1000; // 2 seconds |
| |
| private static final String XATTR_SERIAL = "user.serial"; |
| |
| // Tron counters |
| private static final String TRON_GUEST_CREATED = "users_guest_created"; |
| private static final String TRON_USER_CREATED = "users_user_created"; |
| |
| private final Context mContext; |
| private final PackageManagerService mPm; |
| private final Object mPackagesLock; |
| // Short-term lock for internal state, when interaction/sync with PM is not required |
| private final Object mUsersLock = new Object(); |
| private final Object mRestrictionsLock = new Object(); |
| |
| private final Handler mHandler; |
| |
| private final File mUsersDir; |
| private final File mUserListFile; |
| |
| private static final IBinder mUserRestriconToken = new Binder(); |
| |
| /** |
| * User-related information that is used for persisting to flash. Only UserInfo is |
| * directly exposed to other system apps. |
| */ |
| private static class UserData { |
| // Basic user information and properties |
| UserInfo info; |
| // Account name used when there is a strong association between a user and an account |
| String account; |
| // Account information for seeding into a newly created user. This could also be |
| // used for login validation for an existing user, for updating their credentials. |
| // In the latter case, data may not need to be persisted as it is only valid for the |
| // current login session. |
| String seedAccountName; |
| String seedAccountType; |
| PersistableBundle seedAccountOptions; |
| // Whether to perist the seed account information to be available after a boot |
| boolean persistSeedData; |
| |
| void clearSeedAccountData() { |
| seedAccountName = null; |
| seedAccountType = null; |
| seedAccountOptions = null; |
| persistSeedData = false; |
| } |
| } |
| |
| @GuardedBy("mUsersLock") |
| private final SparseArray<UserData> mUsers = new SparseArray<>(); |
| |
| /** |
| * User restrictions set via UserManager. This doesn't include restrictions set by |
| * device owner / profile owners. |
| * |
| * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, |
| * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} |
| * maybe shared between {@link #mBaseUserRestrictions} and |
| * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. |
| * (Otherwise we won't be able to detect what restrictions have changed in |
| * {@link #updateUserRestrictionsInternalLR}. |
| */ |
| @GuardedBy("mRestrictionsLock") |
| private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); |
| |
| /** |
| * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined |
| * with device / profile owner restrictions. We'll initialize it lazily; use |
| * {@link #getEffectiveUserRestrictions} to access it. |
| * |
| * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, |
| * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} |
| * maybe shared between {@link #mBaseUserRestrictions} and |
| * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. |
| * (Otherwise we won't be able to detect what restrictions have changed in |
| * {@link #updateUserRestrictionsInternalLR}. |
| */ |
| @GuardedBy("mRestrictionsLock") |
| private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); |
| |
| /** |
| * User restrictions that have already been applied in |
| * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions |
| * that have changed since the last |
| * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. |
| */ |
| @GuardedBy("mRestrictionsLock") |
| private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); |
| |
| /** |
| * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} |
| * that should be applied to all users, including guests. |
| */ |
| @GuardedBy("mRestrictionsLock") |
| private Bundle mDevicePolicyGlobalUserRestrictions; |
| |
| /** |
| * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} |
| * for each user. |
| */ |
| @GuardedBy("mRestrictionsLock") |
| private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); |
| |
| @GuardedBy("mGuestRestrictions") |
| private final Bundle mGuestRestrictions = new Bundle(); |
| |
| /** |
| * Set of user IDs being actively removed. Removed IDs linger in this set |
| * for several seconds to work around a VFS caching issue. |
| */ |
| @GuardedBy("mUsersLock") |
| private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); |
| |
| @GuardedBy("mUsersLock") |
| private int[] mUserIds; |
| @GuardedBy("mPackagesLock") |
| private int mNextSerialNumber; |
| private int mUserVersion = 0; |
| |
| private IAppOpsService mAppOpsService; |
| |
| private final LocalService mLocalService; |
| |
| @GuardedBy("mUsersLock") |
| private boolean mIsDeviceManaged; |
| |
| @GuardedBy("mUsersLock") |
| private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); |
| |
| @GuardedBy("mUserRestrictionsListeners") |
| private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = |
| new ArrayList<>(); |
| |
| private final LockPatternUtils mLockPatternUtils; |
| |
| /** |
| * Whether all users should be created ephemeral. |
| */ |
| @GuardedBy("mUsersLock") |
| private boolean mForceEphemeralUsers; |
| |
| private static UserManagerService sInstance; |
| |
| public static UserManagerService getInstance() { |
| synchronized (UserManagerService.class) { |
| return sInstance; |
| } |
| } |
| |
| @VisibleForTesting |
| UserManagerService(File dataDir) { |
| this(null, null, new Object(), dataDir); |
| } |
| |
| /** |
| * Called by package manager to create the service. This is closely |
| * associated with the package manager, and the given lock is the |
| * package manager's own lock. |
| */ |
| UserManagerService(Context context, PackageManagerService pm, Object packagesLock) { |
| this(context, pm, packagesLock, Environment.getDataDirectory()); |
| } |
| |
| private UserManagerService(Context context, PackageManagerService pm, |
| Object packagesLock, File dataDir) { |
| mContext = context; |
| mPm = pm; |
| mPackagesLock = packagesLock; |
| mHandler = new MainHandler(); |
| synchronized (mPackagesLock) { |
| mUsersDir = new File(dataDir, USER_INFO_DIR); |
| mUsersDir.mkdirs(); |
| // Make zeroth user directory, for services to migrate their files to that location |
| File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); |
| userZeroDir.mkdirs(); |
| FileUtils.setPermissions(mUsersDir.toString(), |
| FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, |
| -1, -1); |
| mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); |
| initDefaultGuestRestrictions(); |
| readUserListLP(); |
| sInstance = this; |
| } |
| mLocalService = new LocalService(); |
| LocalServices.addService(UserManagerInternal.class, mLocalService); |
| mLockPatternUtils = new LockPatternUtils(mContext); |
| } |
| |
| void systemReady() { |
| // Prune out any partially created, partially removed and ephemeral users. |
| ArrayList<UserInfo> partials = new ArrayList<>(); |
| synchronized (mUsersLock) { |
| final int userSize = mUsers.size(); |
| for (int i = 0; i < userSize; i++) { |
| UserInfo ui = mUsers.valueAt(i).info; |
| if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { |
| partials.add(ui); |
| } |
| } |
| } |
| final int partialsSize = partials.size(); |
| for (int i = 0; i < partialsSize; i++) { |
| UserInfo ui = partials.get(i); |
| Slog.w(LOG_TAG, "Removing partially created user " + ui.id |
| + " (name=" + ui.name + ")"); |
| removeUserState(ui.id); |
| } |
| |
| onUserForeground(UserHandle.USER_SYSTEM); |
| |
| mAppOpsService = IAppOpsService.Stub.asInterface( |
| ServiceManager.getService(Context.APP_OPS_SERVICE)); |
| |
| synchronized (mRestrictionsLock) { |
| applyUserRestrictionsLR(UserHandle.USER_SYSTEM); |
| } |
| } |
| |
| @Override |
| public String getUserAccount(int userId) { |
| checkManageUserAndAcrossUsersFullPermission("get user account"); |
| synchronized (mUsersLock) { |
| return mUsers.get(userId).account; |
| } |
| } |
| |
| @Override |
| public void setUserAccount(int userId, String accountName) { |
| checkManageUserAndAcrossUsersFullPermission("set user account"); |
| UserData userToUpdate = null; |
| synchronized (mPackagesLock) { |
| synchronized (mUsersLock) { |
| final UserData userData = mUsers.get(userId); |
| if (userData == null) { |
| Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); |
| return; |
| } |
| String currentAccount = userData.account; |
| if (!Objects.equal(currentAccount, accountName)) { |
| userData.account = accountName; |
| userToUpdate = userData; |
| } |
| } |
| |
| if (userToUpdate != null) { |
| writeUserLP(userToUpdate); |
| } |
| } |
| } |
| |
| @Override |
| public UserInfo getPrimaryUser() { |
| checkManageUsersPermission("query users"); |
| synchronized (mUsersLock) { |
| final int userSize = mUsers.size(); |
| for (int i = 0; i < userSize; i++) { |
| UserInfo ui = mUsers.valueAt(i).info; |
| if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { |
| return ui; |
| } |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public @NonNull List<UserInfo> getUsers(boolean excludeDying) { |
| checkManageUsersPermission("query users"); |
| synchronized (mUsersLock) { |
| ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); |
| final int userSize = mUsers.size(); |
| for (int i = 0; i < userSize; i++) { |
| UserInfo ui = mUsers.valueAt(i).info; |
| if (ui.partial) { |
| continue; |
| } |
| if (!excludeDying || !mRemovingUserIds.get(ui.id)) { |
| users.add(ui); |
| } |
| } |
| return users; |
| } |
| } |
| |
| @Override |
| public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { |
| if (userId != UserHandle.getCallingUserId()) { |
| checkManageUsersPermission("getting profiles related to user " + userId); |
| } |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| synchronized (mUsersLock) { |
| return getProfilesLU(userId, enabledOnly); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| /** Assume permissions already checked and caller's identity cleared */ |
| private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly) { |
| UserInfo user = getUserInfoLU(userId); |
| ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); |
| if (user == null) { |
| // Probably a dying user |
| return users; |
| } |
| final int userSize = mUsers.size(); |
| for (int i = 0; i < userSize; i++) { |
| UserInfo profile = mUsers.valueAt(i).info; |
| if (!isProfileOf(user, profile)) { |
| continue; |
| } |
| if (enabledOnly && !profile.isEnabled()) { |
| continue; |
| } |
| if (mRemovingUserIds.get(profile.id)) { |
| continue; |
| } |
| users.add(profile); |
| } |
| return users; |
| } |
| |
| @Override |
| public int getCredentialOwnerProfile(int userHandle) { |
| checkManageUsersPermission("get the credential owner"); |
| if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { |
| synchronized (mUsersLock) { |
| UserInfo profileParent = getProfileParentLU(userHandle); |
| if (profileParent != null) { |
| return profileParent.id; |
| } |
| } |
| } |
| |
| return userHandle; |
| } |
| |
| @Override |
| public boolean isSameProfileGroup(int userId, int otherUserId) { |
| if (userId == otherUserId) return true; |
| checkManageUsersPermission("check if in the same profile group"); |
| synchronized (mPackagesLock) { |
| return isSameProfileGroupLP(userId, otherUserId); |
| } |
| } |
| |
| private boolean isSameProfileGroupLP(int userId, int otherUserId) { |
| synchronized (mUsersLock) { |
| UserInfo userInfo = getUserInfoLU(userId); |
| if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { |
| return false; |
| } |
| UserInfo otherUserInfo = getUserInfoLU(otherUserId); |
| if (otherUserInfo == null |
| || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { |
| return false; |
| } |
| return userInfo.profileGroupId == otherUserInfo.profileGroupId; |
| } |
| } |
| |
| @Override |
| public UserInfo getProfileParent(int userHandle) { |
| checkManageUsersPermission("get the profile parent"); |
| synchronized (mUsersLock) { |
| return getProfileParentLU(userHandle); |
| } |
| } |
| |
| private UserInfo getProfileParentLU(int userHandle) { |
| UserInfo profile = getUserInfoLU(userHandle); |
| if (profile == null) { |
| return null; |
| } |
| int parentUserId = profile.profileGroupId; |
| if (parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { |
| return null; |
| } else { |
| return getUserInfoLU(parentUserId); |
| } |
| } |
| |
| private static boolean isProfileOf(UserInfo user, UserInfo profile) { |
| return user.id == profile.id || |
| (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID |
| && user.profileGroupId == profile.profileGroupId); |
| } |
| |
| private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, |
| UserHandle parentHandle, boolean inQuietMode) { |
| Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_AVAILABILITY_CHANGED); |
| intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); |
| intent.putExtra(Intent.EXTRA_USER, profileHandle); |
| intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); |
| mContext.sendBroadcastAsUser(intent, parentHandle); |
| } |
| |
| @Override |
| public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { |
| checkManageUsersPermission("silence profile"); |
| boolean changed = false; |
| UserInfo profile, parent; |
| synchronized (mPackagesLock) { |
| synchronized (mUsersLock) { |
| profile = getUserInfoLU(userHandle); |
| parent = getProfileParentLU(userHandle); |
| |
| } |
| if (profile == null || !profile.isManagedProfile()) { |
| throw new IllegalArgumentException("User " + userHandle + " is not a profile"); |
| } |
| if (profile.isQuietModeEnabled() != enableQuietMode) { |
| profile.flags ^= UserInfo.FLAG_QUIET_MODE; |
| writeUserLP(getUserDataLU(profile.id)); |
| changed = true; |
| } |
| } |
| if (changed) { |
| long identity = Binder.clearCallingIdentity(); |
| try { |
| if (enableQuietMode) { |
| ActivityManagerNative.getDefault().stopUser(userHandle, /* force */true, null); |
| } else { |
| ActivityManagerNative.getDefault().startUserInBackground(userHandle); |
| } |
| } catch (RemoteException e) { |
| Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| |
| broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), |
| enableQuietMode); |
| } |
| } |
| |
| @Override |
| public boolean isQuietModeEnabled(int userHandle) { |
| synchronized (mPackagesLock) { |
| UserInfo info; |
| synchronized (mUsersLock) { |
| info = getUserInfoLU(userHandle); |
| } |
| if (info == null || !info.isManagedProfile()) { |
| return false; |
| } |
| return info.isQuietModeEnabled(); |
| } |
| } |
| |
| @Override |
| public void setUserEnabled(int userId) { |
| checkManageUsersPermission("enable user"); |
| synchronized (mPackagesLock) { |
| UserInfo info; |
| synchronized (mUsersLock) { |
| info = getUserInfoLU(userId); |
| } |
| if (info != null && !info.isEnabled()) { |
| info.flags ^= UserInfo.FLAG_DISABLED; |
| writeUserLP(getUserDataLU(info.id)); |
| } |
| } |
| } |
| |
| @Override |
| public UserInfo getUserInfo(int userId) { |
| int callingUserId = UserHandle.getCallingUserId(); |
| if (callingUserId != userId && !hasManageUsersPermission()) { |
| synchronized (mPackagesLock) { |
| if (!isSameProfileGroupLP(callingUserId, userId)) { |
| throw new SecurityException( |
| "You need MANAGE_USERS permission to: query users outside profile" + |
| " group"); |
| } |
| } |
| } |
| synchronized (mUsersLock) { |
| return getUserInfoLU(userId); |
| } |
| } |
| |
| @Override |
| public boolean isRestricted() { |
| synchronized (mUsersLock) { |
| return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); |
| } |
| } |
| |
| @Override |
| public boolean canHaveRestrictedProfile(int userId) { |
| checkManageUsersPermission("canHaveRestrictedProfile"); |
| synchronized (mUsersLock) { |
| final UserInfo userInfo = getUserInfoLU(userId); |
| if (userInfo == null || !userInfo.canHaveProfile()) { |
| return false; |
| } |
| if (!userInfo.isAdmin()) { |
| return false; |
| } |
| // restricted profile can be created if there is no DO set and the admin user has no PO; |
| return !mIsDeviceManaged && !mIsUserManaged.get(userId); |
| } |
| } |
| |
| /* |
| * Should be locked on mUsers before calling this. |
| */ |
| private UserInfo getUserInfoLU(int userId) { |
| final UserData userData = mUsers.get(userId); |
| // If it is partial and not in the process of being removed, return as unknown user. |
| if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { |
| Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); |
| return null; |
| } |
| return userData != null ? userData.info : null; |
| } |
| |
| private UserData getUserDataLU(int userId) { |
| final UserData userData = mUsers.get(userId); |
| // If it is partial and not in the process of being removed, return as unknown user. |
| if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { |
| return null; |
| } |
| return userData; |
| } |
| |
| /** |
| * Obtains {@link #mUsersLock} and return UserInfo from mUsers. |
| * <p>No permissions checking or any addition checks are made</p> |
| */ |
| private UserInfo getUserInfoNoChecks(int userId) { |
| synchronized (mUsersLock) { |
| final UserData userData = mUsers.get(userId); |
| return userData != null ? userData.info : null; |
| } |
| } |
| |
| /** |
| * Obtains {@link #mUsersLock} and return UserData from mUsers. |
| * <p>No permissions checking or any addition checks are made</p> |
| */ |
| private UserData getUserDataNoChecks(int userId) { |
| synchronized (mUsersLock) { |
| return mUsers.get(userId); |
| } |
| } |
| |
| /** Called by PackageManagerService */ |
| public boolean exists(int userId) { |
| return getUserInfoNoChecks(userId) != null; |
| } |
| |
| @Override |
| public void setUserName(int userId, String name) { |
| checkManageUsersPermission("rename users"); |
| boolean changed = false; |
| synchronized (mPackagesLock) { |
| UserData userData = getUserDataNoChecks(userId); |
| if (userData == null || userData.info.partial) { |
| Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); |
| return; |
| } |
| if (name != null && !name.equals(userData.info.name)) { |
| userData.info.name = name; |
| writeUserLP(userData); |
| changed = true; |
| } |
| } |
| if (changed) { |
| sendUserInfoChangedBroadcast(userId); |
| } |
| } |
| |
| @Override |
| public void setUserIcon(int userId, Bitmap bitmap) { |
| checkManageUsersPermission("update users"); |
| if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { |
| Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); |
| return; |
| } |
| mLocalService.setUserIcon(userId, bitmap); |
| } |
| |
| |
| |
| private void sendUserInfoChangedBroadcast(int userId) { |
| Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); |
| changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); |
| changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); |
| mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); |
| } |
| |
| @Override |
| public ParcelFileDescriptor getUserIcon(int targetUserId) { |
| String iconPath; |
| synchronized (mPackagesLock) { |
| UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); |
| if (targetUserInfo == null || targetUserInfo.partial) { |
| Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); |
| return null; |
| } |
| |
| final int callingUserId = UserHandle.getCallingUserId(); |
| final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; |
| final int targetGroupId = targetUserInfo.profileGroupId; |
| final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID |
| && callingGroupId == targetGroupId); |
| if ((callingUserId != targetUserId) && !sameGroup) { |
| checkManageUsersPermission("get the icon of a user who is not related"); |
| } |
| |
| if (targetUserInfo.iconPath == null) { |
| return null; |
| } |
| iconPath = targetUserInfo.iconPath; |
| } |
| |
| try { |
| return ParcelFileDescriptor.open( |
| new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); |
| } catch (FileNotFoundException e) { |
| Log.e(LOG_TAG, "Couldn't find icon file", e); |
| } |
| return null; |
| } |
| |
| public void makeInitialized(int userId) { |
| checkManageUsersPermission("makeInitialized"); |
| boolean scheduleWriteUser = false; |
| UserData userData; |
| synchronized (mUsersLock) { |
| userData = mUsers.get(userId); |
| if (userData == null || userData.info.partial) { |
| Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); |
| return; |
| } |
| if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { |
| userData.info.flags |= UserInfo.FLAG_INITIALIZED; |
| scheduleWriteUser = true; |
| } |
| } |
| if (scheduleWriteUser) { |
| scheduleWriteUser(userData); |
| } |
| } |
| |
| /** |
| * If default guest restrictions haven't been initialized yet, add the basic |
| * restrictions. |
| */ |
| private void initDefaultGuestRestrictions() { |
| synchronized (mGuestRestrictions) { |
| if (mGuestRestrictions.isEmpty()) { |
| mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); |
| mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); |
| mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); |
| } |
| } |
| } |
| |
| @Override |
| public Bundle getDefaultGuestRestrictions() { |
| checkManageUsersPermission("getDefaultGuestRestrictions"); |
| synchronized (mGuestRestrictions) { |
| return new Bundle(mGuestRestrictions); |
| } |
| } |
| |
| @Override |
| public void setDefaultGuestRestrictions(Bundle restrictions) { |
| checkManageUsersPermission("setDefaultGuestRestrictions"); |
| synchronized (mGuestRestrictions) { |
| mGuestRestrictions.clear(); |
| mGuestRestrictions.putAll(restrictions); |
| } |
| synchronized (mPackagesLock) { |
| writeUserListLP(); |
| } |
| } |
| |
| /** |
| * See {@link UserManagerInternal#setDevicePolicyUserRestrictions(int, Bundle, Bundle)} |
| */ |
| void setDevicePolicyUserRestrictionsInner(int userId, @NonNull Bundle local, |
| @Nullable Bundle global) { |
| Preconditions.checkNotNull(local); |
| boolean globalChanged = false; |
| boolean localChanged; |
| synchronized (mRestrictionsLock) { |
| if (global != null) { |
| // Update global. |
| globalChanged = !UserRestrictionsUtils.areEqual( |
| mDevicePolicyGlobalUserRestrictions, global); |
| if (globalChanged) { |
| mDevicePolicyGlobalUserRestrictions = global; |
| } |
| } |
| { |
| // Update local. |
| final Bundle prev = mDevicePolicyLocalUserRestrictions.get(userId); |
| localChanged = !UserRestrictionsUtils.areEqual(prev, local); |
| if (localChanged) { |
| mDevicePolicyLocalUserRestrictions.put(userId, local); |
| } |
| } |
| } |
| if (DBG) { |
| Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId |
| + " global=" + global + (globalChanged ? " (changed)" : "") |
| + " local=" + local + (localChanged ? " (changed)" : "") |
| ); |
| } |
| // Don't call them within the mRestrictionsLock. |
| synchronized (mPackagesLock) { |
| if (globalChanged) { |
| writeUserListLP(); |
| } |
| if (localChanged) { |
| writeUserLP(getUserDataNoChecks(userId)); |
| } |
| } |
| |
| synchronized (mRestrictionsLock) { |
| if (globalChanged) { |
| applyUserRestrictionsForAllUsersLR(); |
| } else if (localChanged) { |
| applyUserRestrictionsLR(userId); |
| } |
| } |
| } |
| |
| @GuardedBy("mRestrictionsLock") |
| private Bundle computeEffectiveUserRestrictionsLR(int userId) { |
| final Bundle baseRestrictions = |
| UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); |
| final Bundle global = mDevicePolicyGlobalUserRestrictions; |
| final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); |
| |
| if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { |
| // Common case first. |
| return baseRestrictions; |
| } |
| final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); |
| UserRestrictionsUtils.merge(effective, global); |
| UserRestrictionsUtils.merge(effective, local); |
| |
| return effective; |
| } |
| |
| @GuardedBy("mRestrictionsLock") |
| private void invalidateEffectiveUserRestrictionsLR(int userId) { |
| if (DBG) { |
| Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); |
| } |
| mCachedEffectiveUserRestrictions.remove(userId); |
| } |
| |
| private Bundle getEffectiveUserRestrictions(int userId) { |
| synchronized (mRestrictionsLock) { |
| Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); |
| if (restrictions == null) { |
| restrictions = computeEffectiveUserRestrictionsLR(userId); |
| mCachedEffectiveUserRestrictions.put(userId, restrictions); |
| } |
| return restrictions; |
| } |
| } |
| |
| /** @return a specific user restriction that's in effect currently. */ |
| @Override |
| public boolean hasUserRestriction(String restrictionKey, int userId) { |
| if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { |
| return false; |
| } |
| Bundle restrictions = getEffectiveUserRestrictions(userId); |
| return restrictions != null && restrictions.getBoolean(restrictionKey); |
| } |
| |
| /** |
| * @return UserRestrictions that are in effect currently. This always returns a new |
| * {@link Bundle}. |
| */ |
| @Override |
| public Bundle getUserRestrictions(int userId) { |
| return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); |
| } |
| |
| @Override |
| public boolean hasBaseUserRestriction(String restrictionKey, int userId) { |
| checkManageUsersPermission("hasBaseUserRestriction"); |
| if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { |
| return false; |
| } |
| synchronized (mRestrictionsLock) { |
| Bundle bundle = mBaseUserRestrictions.get(userId); |
| return (bundle != null && bundle.getBoolean(restrictionKey, false)); |
| } |
| } |
| |
| @Override |
| public void setUserRestriction(String key, boolean value, int userId) { |
| checkManageUsersPermission("setUserRestriction"); |
| if (!UserRestrictionsUtils.isValidRestriction(key)) { |
| return; |
| } |
| synchronized (mRestrictionsLock) { |
| // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create |
| // a copy. |
| final Bundle newRestrictions = UserRestrictionsUtils.clone( |
| mBaseUserRestrictions.get(userId)); |
| newRestrictions.putBoolean(key, value); |
| |
| updateUserRestrictionsInternalLR(newRestrictions, userId); |
| } |
| } |
| |
| /** |
| * Optionally updating user restrictions, calculate the effective user restrictions and also |
| * propagate to other services and system settings. |
| * |
| * @param newRestrictions User restrictions to set. |
| * If null, will not update user restrictions and only does the propagation. |
| * @param userId target user ID. |
| */ |
| @GuardedBy("mRestrictionsLock") |
| private void updateUserRestrictionsInternalLR( |
| @Nullable Bundle newRestrictions, int userId) { |
| |
| final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( |
| mAppliedUserRestrictions.get(userId)); |
| |
| // Update base restrictions. |
| if (newRestrictions != null) { |
| // If newRestrictions == the current one, it's probably a bug. |
| final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); |
| |
| Preconditions.checkState(prevBaseRestrictions != newRestrictions); |
| Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) |
| != newRestrictions); |
| |
| if (!UserRestrictionsUtils.areEqual(prevBaseRestrictions, newRestrictions)) { |
| mBaseUserRestrictions.put(userId, newRestrictions); |
| scheduleWriteUser(getUserDataNoChecks(userId)); |
| } |
| } |
| |
| final Bundle effective = computeEffectiveUserRestrictionsLR(userId); |
| |
| mCachedEffectiveUserRestrictions.put(userId, effective); |
| |
| // Apply the new restrictions. |
| if (DBG) { |
| debug("Applying user restrictions: userId=" + userId |
| + " new=" + effective + " prev=" + prevAppliedRestrictions); |
| } |
| |
| if (mAppOpsService != null) { // We skip it until system-ready. |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); |
| } catch (RemoteException e) { |
| Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); |
| |
| mAppliedUserRestrictions.put(userId, new Bundle(effective)); |
| } |
| |
| private void propagateUserRestrictionsLR(final int userId, |
| Bundle newRestrictions, Bundle prevRestrictions) { |
| // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock |
| // actually, but we still need some kind of synchronization otherwise we might end up |
| // calling listeners out-of-order, thus "LR". |
| |
| if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { |
| return; |
| } |
| |
| final Bundle newRestrictionsFinal = new Bundle(newRestrictions); |
| final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); |
| |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| UserRestrictionsUtils.applyUserRestrictions( |
| mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); |
| |
| final UserRestrictionsListener[] listeners; |
| synchronized (mUserRestrictionsListeners) { |
| listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; |
| mUserRestrictionsListeners.toArray(listeners); |
| } |
| for (int i = 0; i < listeners.length; i++) { |
| listeners[i].onUserRestrictionsChanged(userId, |
| newRestrictionsFinal, prevRestrictionsFinal); |
| } |
| } |
| }); |
| } |
| |
| // Package private for the inner class. |
| void applyUserRestrictionsLR(int userId) { |
| updateUserRestrictionsInternalLR(null, userId); |
| } |
| |
| @GuardedBy("mRestrictionsLock") |
| // Package private for the inner class. |
| void applyUserRestrictionsForAllUsersLR() { |
| if (DBG) { |
| debug("applyUserRestrictionsForAllUsersLR"); |
| } |
| // First, invalidate all cached values. |
| mCachedEffectiveUserRestrictions.clear(); |
| |
| // We don't want to call into ActivityManagerNative while taking a lock, so we'll call |
| // it on a handler. |
| final Runnable r = new Runnable() { |
| @Override |
| public void run() { |
| // Then get the list of running users. |
| final int[] runningUsers; |
| try { |
| runningUsers = ActivityManagerNative.getDefault().getRunningUserIds(); |
| } catch (RemoteException e) { |
| Log.w(LOG_TAG, "Unable to access ActivityManagerNative"); |
| return; |
| } |
| // Then re-calculate the effective restrictions and apply, only for running users. |
| // It's okay if a new user has started after the getRunningUserIds() call, |
| // because we'll do the same thing (re-calculate the restrictions and apply) |
| // when we start a user. |
| synchronized (mRestrictionsLock) { |
| for (int i = 0; i < runningUsers.length; i++) { |
| applyUserRestrictionsLR(runningUsers[i]); |
| } |
| } |
| } |
| }; |
| mHandler.post(r); |
| } |
| |
| /** |
| * Check if we've hit the limit of how many users can be created. |
| */ |
| private boolean isUserLimitReached() { |
| int count; |
| synchronized (mUsersLock) { |
| count = getAliveUsersExcludingGuestsCountLU(); |
| } |
| return count >= UserManager.getMaxSupportedUsers(); |
| } |
| |
| @Override |
| public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { |
| checkManageUsersPermission("check if more managed profiles can be added."); |
| if (ActivityManager.isLowRamDeviceStatic()) { |
| return false; |
| } |
| if (!mContext.getPackageManager().hasSystemFeature( |
| PackageManager.FEATURE_MANAGED_USERS)) { |
| return false; |
| } |
| // Limit number of managed profiles that can be created |
| final int managedProfilesCount = getProfiles(userId, true).size() - 1; |
| final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; |
| if (managedProfilesCount - profilesRemovedCount >= MAX_MANAGED_PROFILES) { |
| return false; |
| } |
| synchronized(mUsersLock) { |
| UserInfo userInfo = getUserInfoLU(userId); |
| if (!userInfo.canHaveProfile()) { |
| return false; |
| } |
| int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() |
| - profilesRemovedCount; |
| // We allow creating a managed profile in the special case where there is only one user. |
| return usersCountAfterRemoving == 1 |
| || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); |
| } |
| } |
| |
| private int getAliveUsersExcludingGuestsCountLU() { |
| int aliveUserCount = 0; |
| final int totalUserCount = mUsers.size(); |
| // Skip over users being removed |
| for (int i = 0; i < totalUserCount; i++) { |
| UserInfo user = mUsers.valueAt(i).info; |
| if (!mRemovingUserIds.get(user.id) |
| && !user.isGuest() && !user.partial) { |
| aliveUserCount++; |
| } |
| } |
| return aliveUserCount; |
| } |
| |
| /** |
| * Enforces that only the system UID or root's UID or apps that have the |
| * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and |
| * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} |
| * permissions can make certain calls to the UserManager. |
| * |
| * @param message used as message if SecurityException is thrown |
| * @throws SecurityException if the caller does not have enough privilege. |
| */ |
| private static final void checkManageUserAndAcrossUsersFullPermission(String message) { |
| final int uid = Binder.getCallingUid(); |
| if (uid != Process.SYSTEM_UID && uid != 0 |
| && ActivityManager.checkComponentPermission( |
| Manifest.permission.MANAGE_USERS, |
| uid, -1, true) != PackageManager.PERMISSION_GRANTED |
| && ActivityManager.checkComponentPermission( |
| Manifest.permission.INTERACT_ACROSS_USERS_FULL, |
| uid, -1, true) != PackageManager.PERMISSION_GRANTED) { |
| throw new SecurityException( |
| "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " |
| + message); |
| } |
| } |
| |
| /** |
| * Enforces that only the system UID or root's UID or apps that have the |
| * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} |
| * permission can make certain calls to the UserManager. |
| * |
| * @param message used as message if SecurityException is thrown |
| * @throws SecurityException if the caller is not system or root |
| * @see #hasManageUsersPermission() |
| */ |
| private static final void checkManageUsersPermission(String message) { |
| if (!hasManageUsersPermission()) { |
| throw new SecurityException("You need MANAGE_USERS permission to: " + message); |
| } |
| } |
| |
| /** |
| * @return whether the calling UID is system UID or root's UID or the calling app has the |
| * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. |
| */ |
| private static final boolean hasManageUsersPermission() { |
| final int callingUid = Binder.getCallingUid(); |
| return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) |
| || callingUid == Process.ROOT_UID |
| || ActivityManager.checkComponentPermission( |
| android.Manifest.permission.MANAGE_USERS, |
| callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; |
| } |
| |
| /** |
| * Enforces that only the system UID or root's UID (on any user) can make certain calls to the |
| * UserManager. |
| * |
| * @param message used as message if SecurityException is thrown |
| * @throws SecurityException if the caller is not system or root |
| */ |
| private static void checkSystemOrRoot(String message) { |
| final int uid = Binder.getCallingUid(); |
| if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { |
| throw new SecurityException("Only system may: " + message); |
| } |
| } |
| |
| private void writeBitmapLP(UserInfo info, Bitmap bitmap) { |
| try { |
| File dir = new File(mUsersDir, Integer.toString(info.id)); |
| File file = new File(dir, USER_PHOTO_FILENAME); |
| File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); |
| if (!dir.exists()) { |
| dir.mkdir(); |
| FileUtils.setPermissions( |
| dir.getPath(), |
| FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, |
| -1, -1); |
| } |
| FileOutputStream os; |
| if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) |
| && tmp.renameTo(file) && SELinux.restorecon(file)) { |
| info.iconPath = file.getAbsolutePath(); |
| } |
| try { |
| os.close(); |
| } catch (IOException ioe) { |
| // What the ... ! |
| } |
| tmp.delete(); |
| } catch (FileNotFoundException e) { |
| Slog.w(LOG_TAG, "Error setting photo for user ", e); |
| } |
| } |
| |
| /** |
| * Returns an array of user ids. This array is cached here for quick access, so do not modify or |
| * cache it elsewhere. |
| * @return the array of user ids. |
| */ |
| public int[] getUserIds() { |
| synchronized (mUsersLock) { |
| return mUserIds; |
| } |
| } |
| |
| private void readUserListLP() { |
| if (!mUserListFile.exists()) { |
| fallbackToSingleUserLP(); |
| return; |
| } |
| FileInputStream fis = null; |
| AtomicFile userListFile = new AtomicFile(mUserListFile); |
| try { |
| fis = userListFile.openRead(); |
| XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(fis, StandardCharsets.UTF_8.name()); |
| int type; |
| while ((type = parser.next()) != XmlPullParser.START_TAG |
| && type != XmlPullParser.END_DOCUMENT) { |
| // Skip |
| } |
| |
| if (type != XmlPullParser.START_TAG) { |
| Slog.e(LOG_TAG, "Unable to read user list"); |
| fallbackToSingleUserLP(); |
| return; |
| } |
| |
| mNextSerialNumber = -1; |
| if (parser.getName().equals(TAG_USERS)) { |
| String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); |
| if (lastSerialNumber != null) { |
| mNextSerialNumber = Integer.parseInt(lastSerialNumber); |
| } |
| String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); |
| if (versionNumber != null) { |
| mUserVersion = Integer.parseInt(versionNumber); |
| } |
| } |
| |
| final Bundle newDevicePolicyGlobalUserRestrictions = new Bundle(); |
| |
| while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { |
| if (type == XmlPullParser.START_TAG) { |
| final String name = parser.getName(); |
| if (name.equals(TAG_USER)) { |
| String id = parser.getAttributeValue(null, ATTR_ID); |
| |
| UserData userData = readUserLP(Integer.parseInt(id)); |
| |
| if (userData != null) { |
| synchronized (mUsersLock) { |
| mUsers.put(userData.info.id, userData); |
| if (mNextSerialNumber < 0 |
| || mNextSerialNumber <= userData.info.id) { |
| mNextSerialNumber = userData.info.id + 1; |
| } |
| } |
| } |
| } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { |
| while ((type = parser.next()) != XmlPullParser.END_DOCUMENT |
| && type != XmlPullParser.END_TAG) { |
| if (type == XmlPullParser.START_TAG) { |
| if (parser.getName().equals(TAG_RESTRICTIONS)) { |
| synchronized (mGuestRestrictions) { |
| UserRestrictionsUtils |
| .readRestrictions(parser, mGuestRestrictions); |
| } |
| } else if (parser.getName().equals(TAG_DEVICE_POLICY_RESTRICTIONS) |
| ) { |
| UserRestrictionsUtils.readRestrictions(parser, |
| newDevicePolicyGlobalUserRestrictions); |
| } |
| break; |
| } |
| } |
| } |
| } |
| } |
| synchronized (mRestrictionsLock) { |
| mDevicePolicyGlobalUserRestrictions = newDevicePolicyGlobalUserRestrictions; |
| } |
| updateUserIds(); |
| upgradeIfNecessaryLP(); |
| } catch (IOException | XmlPullParserException e) { |
| fallbackToSingleUserLP(); |
| } finally { |
| IoUtils.closeQuietly(fis); |
| } |
| } |
| |
| /** |
| * Upgrade steps between versions, either for fixing bugs or changing the data format. |
| */ |
| private void upgradeIfNecessaryLP() { |
| final int originalVersion = mUserVersion; |
| int userVersion = mUserVersion; |
| if (userVersion < 1) { |
| // Assign a proper name for the owner, if not initialized correctly before |
| UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); |
| if ("Primary".equals(userData.info.name)) { |
| userData.info.name = |
| mContext.getResources().getString(com.android.internal.R.string.owner_name); |
| scheduleWriteUser(userData); |
| } |
| userVersion = 1; |
| } |
| |
| if (userVersion < 2) { |
| // Owner should be marked as initialized |
| UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); |
| if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { |
| userData.info.flags |= UserInfo.FLAG_INITIALIZED; |
| scheduleWriteUser(userData); |
| } |
| userVersion = 2; |
| } |
| |
| |
| if (userVersion < 4) { |
| userVersion = 4; |
| } |
| |
| if (userVersion < 5) { |
| initDefaultGuestRestrictions(); |
| userVersion = 5; |
| } |
| |
| if (userVersion < 6) { |
| final boolean splitSystemUser = UserManager.isSplitSystemUser(); |
| synchronized (mUsersLock) { |
| for (int i = 0; i < mUsers.size(); i++) { |
| UserData userData = mUsers.valueAt(i); |
| // In non-split mode, only user 0 can have restricted profiles |
| if (!splitSystemUser && userData.info.isRestricted() |
| && (userData.info.restrictedProfileParentId |
| == UserInfo.NO_PROFILE_GROUP_ID)) { |
| userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; |
| scheduleWriteUser(userData); |
| } |
| } |
| } |
| userVersion = 6; |
| } |
| |
| if (userVersion < USER_VERSION) { |
| Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " |
| + USER_VERSION); |
| } else { |
| mUserVersion = userVersion; |
| |
| if (originalVersion < mUserVersion) { |
| writeUserListLP(); |
| } |
| } |
| } |
| |
| private void fallbackToSingleUserLP() { |
| int flags = UserInfo.FLAG_INITIALIZED; |
| // In split system user mode, the admin and primary flags are assigned to the first human |
| // user. |
| if (!UserManager.isSplitSystemUser()) { |
| flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; |
| } |
| // Create the system user |
| UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, |
| mContext.getResources().getString(com.android.internal.R.string.owner_name), null, |
| flags); |
| UserData userData = new UserData(); |
| userData.info = system; |
| synchronized (mUsersLock) { |
| mUsers.put(system.id, userData); |
| } |
| mNextSerialNumber = MIN_USER_ID; |
| mUserVersion = USER_VERSION; |
| |
| Bundle restrictions = new Bundle(); |
| synchronized (mRestrictionsLock) { |
| mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); |
| } |
| |
| updateUserIds(); |
| initDefaultGuestRestrictions(); |
| |
| writeUserListLP(); |
| writeUserLP(userData); |
| } |
| |
| private void scheduleWriteUser(UserData UserData) { |
| if (DBG) { |
| debug("scheduleWriteUser"); |
| } |
| // No need to wrap it within a lock -- worst case, we'll just post the same message |
| // twice. |
| if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { |
| Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); |
| mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); |
| } |
| } |
| |
| /* |
| * Writes the user file in this format: |
| * |
| * <user flags="20039023" id="0"> |
| * <name>Primary</name> |
| * </user> |
| */ |
| private void writeUserLP(UserData userData) { |
| if (DBG) { |
| debug("writeUserLP " + userData); |
| } |
| FileOutputStream fos = null; |
| AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); |
| try { |
| fos = userFile.startWrite(); |
| final BufferedOutputStream bos = new BufferedOutputStream(fos); |
| |
| // XmlSerializer serializer = XmlUtils.serializerInstance(); |
| final XmlSerializer serializer = new FastXmlSerializer(); |
| serializer.setOutput(bos, StandardCharsets.UTF_8.name()); |
| serializer.startDocument(null, true); |
| serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); |
| |
| final UserInfo userInfo = userData.info; |
| serializer.startTag(null, TAG_USER); |
| serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); |
| serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); |
| serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); |
| serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); |
| serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, |
| Long.toString(userInfo.lastLoggedInTime)); |
| if (userInfo.iconPath != null) { |
| serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); |
| } |
| if (userInfo.partial) { |
| serializer.attribute(null, ATTR_PARTIAL, "true"); |
| } |
| if (userInfo.guestToRemove) { |
| serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); |
| } |
| if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { |
| serializer.attribute(null, ATTR_PROFILE_GROUP_ID, |
| Integer.toString(userInfo.profileGroupId)); |
| } |
| if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { |
| serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, |
| Integer.toString(userInfo.restrictedProfileParentId)); |
| } |
| // Write seed data |
| if (userData.persistSeedData) { |
| if (userData.seedAccountName != null) { |
| serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); |
| } |
| if (userData.seedAccountType != null) { |
| serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); |
| } |
| } |
| serializer.startTag(null, TAG_NAME); |
| serializer.text(userInfo.name); |
| serializer.endTag(null, TAG_NAME); |
| synchronized (mRestrictionsLock) { |
| UserRestrictionsUtils.writeRestrictions(serializer, |
| mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); |
| UserRestrictionsUtils.writeRestrictions(serializer, |
| mDevicePolicyLocalUserRestrictions.get(userInfo.id), |
| TAG_DEVICE_POLICY_RESTRICTIONS); |
| } |
| |
| if (userData.account != null) { |
| serializer.startTag(null, TAG_ACCOUNT); |
| serializer.text(userData.account); |
| serializer.endTag(null, TAG_ACCOUNT); |
| } |
| |
| if (userData.persistSeedData && userData.seedAccountOptions != null) { |
| serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); |
| userData.seedAccountOptions.saveToXml(serializer); |
| serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); |
| } |
| serializer.endTag(null, TAG_USER); |
| |
| serializer.endDocument(); |
| userFile.finishWrite(fos); |
| } catch (Exception ioe) { |
| Slog.e(LOG_TAG, "Error writing user info " + userData.info.id + "\n" + ioe); |
| userFile.failWrite(fos); |
| } |
| } |
| |
| /* |
| * Writes the user list file in this format: |
| * |
| * <users nextSerialNumber="3"> |
| * <user id="0"></user> |
| * <user id="2"></user> |
| * </users> |
| */ |
| private void writeUserListLP() { |
| if (DBG) { |
| debug("writeUserList"); |
| } |
| FileOutputStream fos = null; |
| AtomicFile userListFile = new AtomicFile(mUserListFile); |
| try { |
| fos = userListFile.startWrite(); |
| final BufferedOutputStream bos = new BufferedOutputStream(fos); |
| |
| // XmlSerializer serializer = XmlUtils.serializerInstance(); |
| final XmlSerializer serializer = new FastXmlSerializer(); |
| serializer.setOutput(bos, StandardCharsets.UTF_8.name()); |
| serializer.startDocument(null, true); |
| serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); |
| |
| serializer.startTag(null, TAG_USERS); |
| serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); |
| serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); |
| |
| serializer.startTag(null, TAG_GUEST_RESTRICTIONS); |
| synchronized (mGuestRestrictions) { |
| UserRestrictionsUtils |
| .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); |
| } |
| serializer.endTag(null, TAG_GUEST_RESTRICTIONS); |
| synchronized (mRestrictionsLock) { |
| UserRestrictionsUtils.writeRestrictions(serializer, |
| mDevicePolicyGlobalUserRestrictions, TAG_DEVICE_POLICY_RESTRICTIONS); |
| } |
| int[] userIdsToWrite; |
| synchronized (mUsersLock) { |
| userIdsToWrite = new int[mUsers.size()]; |
| for (int i = 0; i < userIdsToWrite.length; i++) { |
| UserInfo user = mUsers.valueAt(i).info; |
| userIdsToWrite[i] = user.id; |
| } |
| } |
| for (int id : userIdsToWrite) { |
| serializer.startTag(null, TAG_USER); |
| serializer.attribute(null, ATTR_ID, Integer.toString(id)); |
| serializer.endTag(null, TAG_USER); |
| } |
| |
| serializer.endTag(null, TAG_USERS); |
| |
| serializer.endDocument(); |
| userListFile.finishWrite(fos); |
| } catch (Exception e) { |
| userListFile.failWrite(fos); |
| Slog.e(LOG_TAG, "Error writing user list"); |
| } |
| } |
| |
| private UserData readUserLP(int id) { |
| int flags = 0; |
| int serialNumber = id; |
| String name = null; |
| String account = null; |
| String iconPath = null; |
| long creationTime = 0L; |
| long lastLoggedInTime = 0L; |
| int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; |
| int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; |
| boolean partial = false; |
| boolean guestToRemove = false; |
| boolean persistSeedData = false; |
| String seedAccountName = null; |
| String seedAccountType = null; |
| PersistableBundle seedAccountOptions = null; |
| Bundle baseRestrictions = new Bundle(); |
| Bundle localRestrictions = new Bundle(); |
| |
| FileInputStream fis = null; |
| try { |
| AtomicFile userFile = |
| new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); |
| fis = userFile.openRead(); |
| XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(fis, StandardCharsets.UTF_8.name()); |
| int type; |
| while ((type = parser.next()) != XmlPullParser.START_TAG |
| && type != XmlPullParser.END_DOCUMENT) { |
| // Skip |
| } |
| |
| if (type != XmlPullParser.START_TAG) { |
| Slog.e(LOG_TAG, "Unable to read user " + id); |
| return null; |
| } |
| |
| if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { |
| int storedId = readIntAttribute(parser, ATTR_ID, -1); |
| if (storedId != id) { |
| Slog.e(LOG_TAG, "User id does not match the file name"); |
| return null; |
| } |
| serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); |
| flags = readIntAttribute(parser, ATTR_FLAGS, 0); |
| iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); |
| creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); |
| lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); |
| profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, |
| UserInfo.NO_PROFILE_GROUP_ID); |
| restrictedProfileParentId = readIntAttribute(parser, |
| ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); |
| String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); |
| if ("true".equals(valueString)) { |
| partial = true; |
| } |
| valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); |
| if ("true".equals(valueString)) { |
| guestToRemove = true; |
| } |
| |
| seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); |
| seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); |
| if (seedAccountName != null || seedAccountType != null) { |
| persistSeedData = true; |
| } |
| |
| int outerDepth = parser.getDepth(); |
| while ((type = parser.next()) != XmlPullParser.END_DOCUMENT |
| && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { |
| if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { |
| continue; |
| } |
| String tag = parser.getName(); |
| if (TAG_NAME.equals(tag)) { |
| type = parser.next(); |
| if (type == XmlPullParser.TEXT) { |
| name = parser.getText(); |
| } |
| } else if (TAG_RESTRICTIONS.equals(tag)) { |
| UserRestrictionsUtils.readRestrictions(parser, baseRestrictions); |
| } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { |
| UserRestrictionsUtils.readRestrictions(parser, localRestrictions); |
| } else if (TAG_ACCOUNT.equals(tag)) { |
| type = parser.next(); |
| if (type == XmlPullParser.TEXT) { |
| account = parser.getText(); |
| } |
| } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { |
| seedAccountOptions = PersistableBundle.restoreFromXml(parser); |
| persistSeedData = true; |
| } |
| } |
| } |
| |
| // Create the UserInfo object that gets passed around |
| UserInfo userInfo = new UserInfo(id, name, iconPath, flags); |
| userInfo.serialNumber = serialNumber; |
| userInfo.creationTime = creationTime; |
| userInfo.lastLoggedInTime = lastLoggedInTime; |
| userInfo.partial = partial; |
| userInfo.guestToRemove = guestToRemove; |
| userInfo.profileGroupId = profileGroupId; |
| userInfo.restrictedProfileParentId = restrictedProfileParentId; |
| |
| // Create the UserData object that's internal to this class |
| UserData userData = new UserData(); |
| userData.info = userInfo; |
| userData.account = account; |
| userData.seedAccountName = seedAccountName; |
| userData.seedAccountType = seedAccountType; |
| userData.persistSeedData = persistSeedData; |
| userData.seedAccountOptions = seedAccountOptions; |
| |
| synchronized (mRestrictionsLock) { |
| mBaseUserRestrictions.put(id, baseRestrictions); |
| mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); |
| } |
| return userData; |
| } catch (IOException ioe) { |
| } catch (XmlPullParserException pe) { |
| } finally { |
| if (fis != null) { |
| try { |
| fis.close(); |
| } catch (IOException e) { |
| } |
| } |
| } |
| return null; |
| } |
| |
| private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { |
| String valueString = parser.getAttributeValue(null, attr); |
| if (valueString == null) return defaultValue; |
| try { |
| return Integer.parseInt(valueString); |
| } catch (NumberFormatException nfe) { |
| return defaultValue; |
| } |
| } |
| |
| private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { |
| String valueString = parser.getAttributeValue(null, attr); |
| if (valueString == null) return defaultValue; |
| try { |
| return Long.parseLong(valueString); |
| } catch (NumberFormatException nfe) { |
| return defaultValue; |
| } |
| } |
| |
| /** |
| * Removes the app restrictions file for a specific package and user id, if it exists. |
| */ |
| private void cleanAppRestrictionsForPackage(String pkg, int userId) { |
| synchronized (mPackagesLock) { |
| File dir = Environment.getUserSystemDirectory(userId); |
| File resFile = new File(dir, packageToRestrictionsFileName(pkg)); |
| if (resFile.exists()) { |
| resFile.delete(); |
| } |
| } |
| } |
| |
| @Override |
| public UserInfo createProfileForUser(String name, int flags, int userId) { |
| checkManageUsersPermission("Only the system can create users"); |
| return createUserInternal(name, flags, userId); |
| } |
| |
| @Override |
| public UserInfo createUser(String name, int flags) { |
| checkManageUsersPermission("Only the system can create users"); |
| return createUserInternal(name, flags, UserHandle.USER_NULL); |
| } |
| |
| private UserInfo createUserInternal(String name, int flags, int parentId) { |
| if (hasUserRestriction(UserManager.DISALLOW_ADD_USER, UserHandle.getCallingUserId())) { |
| Log.w(LOG_TAG, "Cannot add user. DISALLOW_ADD_USER is enabled."); |
| return null; |
| } |
| return createUserInternalUnchecked(name, flags, parentId); |
| } |
| |
| private UserInfo createUserInternalUnchecked(String name, int flags, int parentId) { |
| if (ActivityManager.isLowRamDeviceStatic()) { |
| return null; |
| } |
| final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; |
| final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; |
| final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; |
| final long ident = Binder.clearCallingIdentity(); |
| UserInfo userInfo; |
| UserData userData; |
| final int userId; |
| try { |
| synchronized (mPackagesLock) { |
| UserData parent = null; |
| if (parentId != UserHandle.USER_NULL) { |
| synchronized (mUsersLock) { |
| parent = getUserDataLU(parentId); |
| } |
| if (parent == null) return null; |
| } |
| if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { |
| Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); |
| return null; |
| } |
| if (!isGuest && !isManagedProfile && isUserLimitReached()) { |
| // If we're not adding a guest user or a managed profile and the limit has |
| // been reached, cannot add a user. |
| return null; |
| } |
| // If we're adding a guest and there already exists one, bail. |
| if (isGuest && findCurrentGuestUser() != null) { |
| return null; |
| } |
| // In legacy mode, restricted profile's parent can only be the owner user |
| if (isRestricted && !UserManager.isSplitSystemUser() |
| && (parentId != UserHandle.USER_SYSTEM)) { |
| Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); |
| return null; |
| } |
| if (isRestricted && UserManager.isSplitSystemUser()) { |
| if (parent == null) { |
| Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " |
| + "specified"); |
| return null; |
| } |
| if (!parent.info.canHaveProfile()) { |
| Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " |
| + "created for the specified parent user id " + parentId); |
| return null; |
| } |
| } |
| if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0) { |
| Log.e(LOG_TAG, |
| "Ephemeral users are supported on split-system-user systems only."); |
| return null; |
| } |
| // In split system user mode, we assign the first human user the primary flag. |
| // And if there is no device owner, we also assign the admin flag to primary user. |
| if (UserManager.isSplitSystemUser() |
| && !isGuest && !isManagedProfile && getPrimaryUser() == null) { |
| flags |= UserInfo.FLAG_PRIMARY; |
| synchronized (mUsersLock) { |
| if (!mIsDeviceManaged) { |
| flags |= UserInfo.FLAG_ADMIN; |
| } |
| } |
| } |
| |
| userId = getNextAvailableId(); |
| Environment.getUserSystemDirectory(userId).mkdirs(); |
| boolean ephemeralGuests = Resources.getSystem() |
| .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); |
| |
| synchronized (mUsersLock) { |
| // Add ephemeral flag to guests/users if required. Also inherit it from parent. |
| if ((isGuest && ephemeralGuests) || mForceEphemeralUsers |
| || (parent != null && parent.info.isEphemeral())) { |
| flags |= UserInfo.FLAG_EPHEMERAL; |
| } |
| |
| userInfo = new UserInfo(userId, name, null, flags); |
| userInfo.serialNumber = mNextSerialNumber++; |
| long now = System.currentTimeMillis(); |
| userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; |
| userInfo.partial = true; |
| userData = new UserData(); |
| userData.info = userInfo; |
| mUsers.put(userId, userData); |
| } |
| writeUserListLP(); |
| if (parent != null) { |
| if (isManagedProfile) { |
| if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { |
| parent.info.profileGroupId = parent.info.id; |
| writeUserLP(parent); |
| } |
| userInfo.profileGroupId = parent.info.profileGroupId; |
| } else if (isRestricted) { |
| if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { |
| parent.info.restrictedProfileParentId = parent.info.id; |
| writeUserLP(parent); |
| } |
| userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; |
| } |
| } |
| } |
| final StorageManager storage = mContext.getSystemService(StorageManager.class); |
| storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); |
| prepareUserStorage(userId, userInfo.serialNumber, |
| StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); |
| mPm.createNewUser(userId); |
| userInfo.partial = false; |
| synchronized (mPackagesLock) { |
| writeUserLP(userData); |
| } |
| updateUserIds(); |
| Bundle restrictions = new Bundle(); |
| if (isGuest) { |
| synchronized (mGuestRestrictions) { |
| restrictions.putAll(mGuestRestrictions); |
| } |
| } |
| synchronized (mRestrictionsLock) { |
| mBaseUserRestrictions.append(userId, restrictions); |
| } |
| mPm.newUserCreated(userId); |
| Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); |
| addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); |
| mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, |
| android.Manifest.permission.MANAGE_USERS); |
| MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED : TRON_USER_CREATED, 1); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| return userInfo; |
| } |
| |
| /** |
| * @hide |
| */ |
| @Override |
| public UserInfo createRestrictedProfile(String name, int parentUserId) { |
| checkManageUsersPermission("setupRestrictedProfile"); |
| final UserInfo user = createProfileForUser(name, UserInfo.FLAG_RESTRICTED, parentUserId); |
| if (user == null) { |
| return null; |
| } |
| long identity = Binder.clearCallingIdentity(); |
| try { |
| setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); |
| // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise |
| // the putIntForUser() will fail. |
| android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), |
| android.provider.Settings.Secure.LOCATION_MODE, |
| android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); |
| setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); |
| } finally { |
| Binder.restoreCallingIdentity(identity); |
| } |
| return user; |
| } |
| |
| /** |
| * Find the current guest user. If the Guest user is partial, |
| * then do not include it in the results as it is about to die. |
| */ |
| private UserInfo findCurrentGuestUser() { |
| synchronized (mUsersLock) { |
| final int size = mUsers.size(); |
| for (int i = 0; i < size; i++) { |
| final UserInfo user = mUsers.valueAt(i).info; |
| if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { |
| return user; |
| } |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Mark this guest user for deletion to allow us to create another guest |
| * and switch to that user before actually removing this guest. |
| * @param userHandle the userid of the current guest |
| * @return whether the user could be marked for deletion |
| */ |
| @Override |
| public boolean markGuestForDeletion(int userHandle) { |
| checkManageUsersPermission("Only the system can remove users"); |
| if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( |
| UserManager.DISALLOW_REMOVE_USER, false)) { |
| Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); |
| return false; |
| } |
| |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| final UserData userData; |
| synchronized (mPackagesLock) { |
| synchronized (mUsersLock) { |
| userData = mUsers.get(userHandle); |
| if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { |
| return false; |
| } |
| } |
| if (!userData.info.isGuest()) { |
| return false; |
| } |
| // We set this to a guest user that is to be removed. This is a temporary state |
| // where we are allowed to add new Guest users, even if this one is still not |
| // removed. This user will still show up in getUserInfo() calls. |
| // If we don't get around to removing this Guest user, it will be purged on next |
| // startup. |
| userData.info.guestToRemove = true; |
| // Mark it as disabled, so that it isn't returned any more when |
| // profiles are queried. |
| userData.info.flags |= UserInfo.FLAG_DISABLED; |
| writeUserLP(userData); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| return true; |
| } |
| |
| /** |
| * Removes a user and all data directories created for that user. This method should be called |
| * after the user's processes have been terminated. |
| * @param userHandle the user's id |
| */ |
| @Override |
| public boolean removeUser(int userHandle) { |
| checkManageUsersPermission("Only the system can remove users"); |
| if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( |
| UserManager.DISALLOW_REMOVE_USER, false)) { |
| Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); |
| return false; |
| } |
| |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| final UserData userData; |
| int currentUser = ActivityManager.getCurrentUser(); |
| if (currentUser == userHandle) { |
| Log.w(LOG_TAG, "Current user cannot be removed"); |
| return false; |
| } |
| synchronized (mPackagesLock) { |
| synchronized (mUsersLock) { |
| userData = mUsers.get(userHandle); |
| if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { |
| return false; |
| } |
| |
| // We remember deleted user IDs to prevent them from being |
| // reused during the current boot; they can still be reused |
| // after a reboot. |
| mRemovingUserIds.put(userHandle, true); |
| } |
| |
| try { |
| mAppOpsService.removeUser(userHandle); |
| } catch (RemoteException e) { |
| Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); |
| } |
| // Set this to a partially created user, so that the user will be purged |
| // on next startup, in case the runtime stops now before stopping and |
| // removing the user completely. |
| userData.info.partial = true; |
| // Mark it as disabled, so that it isn't returned any more when |
| // profiles are queried. |
| userData.info.flags |= UserInfo.FLAG_DISABLED; |
| writeUserLP(userData); |
| } |
| |
| if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID |
| && userData.info.isManagedProfile()) { |
| // Send broadcast to notify system that the user removed was a |
| // managed user. |
| sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); |
| } |
| |
| if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); |
| int res; |
| try { |
| res = ActivityManagerNative.getDefault().stopUser(userHandle, /* force= */ true, |
| new IStopUserCallback.Stub() { |
| @Override |
| public void userStopped(int userId) { |
| finishRemoveUser(userId); |
| } |
| @Override |
| public void userStopAborted(int userId) { |
| } |
| }); |
| } catch (RemoteException e) { |
| return false; |
| } |
| return res == ActivityManager.USER_OP_SUCCESS; |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| void finishRemoveUser(final int userHandle) { |
| if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); |
| // Let other services shutdown any activity and clean up their state before completely |
| // wiping the user's system directory and removing from the user list |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); |
| addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); |
| mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, |
| android.Manifest.permission.MANAGE_USERS, |
| |
| new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (DBG) { |
| Slog.i(LOG_TAG, |
| "USER_REMOVED broadcast sent, cleaning up user data " |
| + userHandle); |
| } |
| new Thread() { |
| @Override |
| public void run() { |
| // Clean up any ActivityManager state |
| LocalServices.getService(ActivityManagerInternal.class) |
| .onUserRemoved(userHandle); |
| removeUserState(userHandle); |
| } |
| }.start(); |
| } |
| }, |
| |
| null, Activity.RESULT_OK, null, null); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| private void removeUserState(final int userHandle) { |
| mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); |
| // Cleanup package manager settings |
| mPm.cleanUpUser(this, userHandle); |
| |
| // Remove this user from the list |
| synchronized (mUsersLock) { |
| mUsers.remove(userHandle); |
| mIsUserManaged.delete(userHandle); |
| } |
| synchronized (mRestrictionsLock) { |
| mBaseUserRestrictions.remove(userHandle); |
| mAppliedUserRestrictions.remove(userHandle); |
| mCachedEffectiveUserRestrictions.remove(userHandle); |
| mDevicePolicyLocalUserRestrictions.remove(userHandle); |
| } |
| // Remove user file |
| AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); |
| userFile.delete(); |
| // Update the user list |
| synchronized (mPackagesLock) { |
| writeUserListLP(); |
| } |
| updateUserIds(); |
| File userDir = Environment.getUserSystemDirectory(userHandle); |
| File renamedUserDir = Environment.getUserSystemDirectory(UserHandle.USER_NULL - userHandle); |
| if (userDir.renameTo(renamedUserDir)) { |
| removeDirectoryRecursive(renamedUserDir); |
| } else { |
| removeDirectoryRecursive(userDir); |
| } |
| } |
| |
| private void removeDirectoryRecursive(File parent) { |
| if (parent.isDirectory()) { |
| String[] files = parent.list(); |
| for (String filename : files) { |
| File child = new File(parent, filename); |
| removeDirectoryRecursive(child); |
| } |
| } |
| parent.delete(); |
| } |
| |
| private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { |
| Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); |
| managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | |
| Intent.FLAG_RECEIVER_FOREGROUND); |
| managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); |
| managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); |
| mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); |
| } |
| |
| @Override |
| public Bundle getApplicationRestrictions(String packageName) { |
| return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); |
| } |
| |
| @Override |
| public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { |
| if (UserHandle.getCallingUserId() != userId |
| || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { |
| checkSystemOrRoot("get application restrictions for other users/apps"); |
| } |
| synchronized (mPackagesLock) { |
| // Read the restrictions from XML |
| return readApplicationRestrictionsLP(packageName, userId); |
| } |
| } |
| |
| @Override |
| public void setApplicationRestrictions(String packageName, Bundle restrictions, |
| int userId) { |
| checkSystemOrRoot("set application restrictions"); |
| synchronized (mPackagesLock) { |
| if (restrictions == null || restrictions.isEmpty()) { |
| cleanAppRestrictionsForPackage(packageName, userId); |
| } else { |
| // Write the restrictions to XML |
| writeApplicationRestrictionsLP(packageName, restrictions, userId); |
| } |
| } |
| |
| // Notify package of changes via an intent - only sent to explicitly registered receivers. |
| Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); |
| changeIntent.setPackage(packageName); |
| changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); |
| mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); |
| } |
| |
| private int getUidForPackage(String packageName) { |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| return mContext.getPackageManager().getApplicationInfo(packageName, |
| PackageManager.MATCH_UNINSTALLED_PACKAGES).uid; |
| } catch (NameNotFoundException nnfe) { |
| return -1; |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| private Bundle readApplicationRestrictionsLP(String packageName, int userId) { |
| AtomicFile restrictionsFile = |
| new AtomicFile(new File(Environment.getUserSystemDirectory(userId), |
| packageToRestrictionsFileName(packageName))); |
| return readApplicationRestrictionsLP(restrictionsFile); |
| } |
| |
| @VisibleForTesting |
| static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { |
| final Bundle restrictions = new Bundle(); |
| final ArrayList<String> values = new ArrayList<>(); |
| if (!restrictionsFile.getBaseFile().exists()) { |
| return restrictions; |
| } |
| |
| FileInputStream fis = null; |
| try { |
| fis = restrictionsFile.openRead(); |
| XmlPullParser parser = Xml.newPullParser(); |
| parser.setInput(fis, StandardCharsets.UTF_8.name()); |
| XmlUtils.nextElement(parser); |
| if (parser.getEventType() != XmlPullParser.START_TAG) { |
| Slog.e(LOG_TAG, "Unable to read restrictions file " |
| + restrictionsFile.getBaseFile()); |
| return restrictions; |
| } |
| while (parser.next() != XmlPullParser.END_DOCUMENT) { |
| readEntry(restrictions, values, parser); |
| } |
| } catch (IOException|XmlPullParserException e) { |
| Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); |
| } finally { |
| IoUtils.closeQuietly(fis); |
| } |
| return restrictions; |
| } |
| |
| private static void readEntry(Bundle restrictions, ArrayList<String> values, |
| XmlPullParser parser) throws XmlPullParserException, IOException { |
| int type = parser.getEventType(); |
| if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { |
| String key = parser.getAttributeValue(null, ATTR_KEY); |
| String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); |
| String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); |
| if (multiple != null) { |
| values.clear(); |
| int count = Integer.parseInt(multiple); |
| while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { |
| if (type == XmlPullParser.START_TAG |
| && parser.getName().equals(TAG_VALUE)) { |
| values.add(parser.nextText().trim()); |
| count--; |
| } |
| } |
| String [] valueStrings = new String[values.size()]; |
| values.toArray(valueStrings); |
| restrictions.putStringArray(key, valueStrings); |
| } else if (ATTR_TYPE_BUNDLE.equals(valType)) { |
| restrictions.putBundle(key, readBundleEntry(parser, values)); |
| } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { |
| final int outerDepth = parser.getDepth(); |
| ArrayList<Bundle> bundleList = new ArrayList<>(); |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| Bundle childBundle = readBundleEntry(parser, values); |
| bundleList.add(childBundle); |
| } |
| restrictions.putParcelableArray(key, |
| bundleList.toArray(new Bundle[bundleList.size()])); |
| } else { |
| String value = parser.nextText().trim(); |
| if (ATTR_TYPE_BOOLEAN.equals(valType)) { |
| restrictions.putBoolean(key, Boolean.parseBoolean(value)); |
| } else if (ATTR_TYPE_INTEGER.equals(valType)) { |
| restrictions.putInt(key, Integer.parseInt(value)); |
| } else { |
| restrictions.putString(key, value); |
| } |
| } |
| } |
| } |
| |
| private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) |
| throws IOException, XmlPullParserException { |
| Bundle childBundle = new Bundle(); |
| final int outerDepth = parser.getDepth(); |
| while (XmlUtils.nextElementWithin(parser, outerDepth)) { |
| readEntry(childBundle, values, parser); |
| } |
| return childBundle; |
| } |
| |
| private void writeApplicationRestrictionsLP(String packageName, |
| Bundle restrictions, int userId) { |
| AtomicFile restrictionsFile = new AtomicFile( |
| new File(Environment.getUserSystemDirectory(userId), |
| packageToRestrictionsFileName(packageName))); |
| writeApplicationRestrictionsLP(restrictions, restrictionsFile); |
| } |
| |
| @VisibleForTesting |
| static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { |
| FileOutputStream fos = null; |
| try { |
| fos = restrictionsFile.startWrite(); |
| final BufferedOutputStream bos = new BufferedOutputStream(fos); |
| |
| final XmlSerializer serializer = new FastXmlSerializer(); |
| serializer.setOutput(bos, StandardCharsets.UTF_8.name()); |
| serializer.startDocument(null, true); |
| serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); |
| |
| serializer.startTag(null, TAG_RESTRICTIONS); |
| writeBundle(restrictions, serializer); |
| serializer.endTag(null, TAG_RESTRICTIONS); |
| |
| serializer.endDocument(); |
| restrictionsFile.finishWrite(fos); |
| } catch (Exception e) { |
| restrictionsFile.failWrite(fos); |
| Slog.e(LOG_TAG, "Error writing application restrictions list", e); |
| } |
| } |
| |
| private static void writeBundle(Bundle restrictions, XmlSerializer serializer) |
| throws IOException { |
| for (String key : restrictions.keySet()) { |
| Object value = restrictions.get(key); |
| serializer.startTag(null, TAG_ENTRY); |
| serializer.attribute(null, ATTR_KEY, key); |
| |
| if (value instanceof Boolean) { |
| serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); |
| serializer.text(value.toString()); |
| } else if (value instanceof Integer) { |
| serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); |
| serializer.text(value.toString()); |
| } else if (value == null || value instanceof String) { |
| serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); |
| serializer.text(value != null ? (String) value : ""); |
| } else if (value instanceof Bundle) { |
| serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); |
| writeBundle((Bundle) value, serializer); |
| } else if (value instanceof Parcelable[]) { |
| serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); |
| Parcelable[] array = (Parcelable[]) value; |
| for (Parcelable parcelable : array) { |
| if (!(parcelable instanceof Bundle)) { |
| throw new IllegalArgumentException("bundle-array can only hold Bundles"); |
| } |
| serializer.startTag(null, TAG_ENTRY); |
| serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); |
| writeBundle((Bundle) parcelable, serializer); |
| serializer.endTag(null, TAG_ENTRY); |
| } |
| } else { |
| serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); |
| String[] values = (String[]) value; |
| serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); |
| for (String choice : values) { |
| serializer.startTag(null, TAG_VALUE); |
| serializer.text(choice != null ? choice : ""); |
| serializer.endTag(null, TAG_VALUE); |
| } |
| } |
| serializer.endTag(null, TAG_ENTRY); |
| } |
| } |
| |
| @Override |
| public int getUserSerialNumber(int userHandle) { |
| synchronized (mUsersLock) { |
| if (!exists(userHandle)) return -1; |
| return getUserInfoLU(userHandle).serialNumber; |
| } |
| } |
| |
| @Override |
| public int getUserHandle(int userSerialNumber) { |
| synchronized (mUsersLock) { |
| for (int userId : mUserIds) { |
| UserInfo info = getUserInfoLU(userId); |
| if (info != null && info.serialNumber == userSerialNumber) return userId; |
| } |
| // Not found |
| return -1; |
| } |
| } |
| |
| @Override |
| public long getUserCreationTime(int userHandle) { |
| int callingUserId = UserHandle.getCallingUserId(); |
| UserInfo userInfo = null; |
| synchronized (mUsersLock) { |
| if (callingUserId == userHandle) { |
| userInfo = getUserInfoLU(userHandle); |
| } else { |
| UserInfo parent = getProfileParentLU(userHandle); |
| if (parent != null && parent.id == callingUserId) { |
| userInfo = getUserInfoLU(userHandle); |
| } |
| } |
| } |
| if (userInfo == null) { |
| throw new SecurityException("userHandle can only be the calling user or a managed " |
| + "profile associated with this user"); |
| } |
| return userInfo.creationTime; |
| } |
| |
| /** |
| * Caches the list of user ids in an array, adjusting the array size when necessary. |
| */ |
| private void updateUserIds() { |
| int num = 0; |
| synchronized (mUsersLock) { |
| final int userSize = mUsers.size(); |
| for (int i = 0; i < userSize; i++) { |
| if (!mUsers.valueAt(i).info.partial) { |
| num++; |
| } |
| } |
| final int[] newUsers = new int[num]; |
| int n = 0; |
| for (int i = 0; i < userSize; i++) { |
| if (!mUsers.valueAt(i).info.partial) { |
| newUsers[n++] = mUsers.keyAt(i); |
| } |
| } |
| mUserIds = newUsers; |
| } |
| } |
| |
| /** |
| * Prepare storage areas for given user on all mounted devices. |
| */ |
| private void prepareUserStorage(int userId, int userSerial, int flags) { |
| final StorageManager storage = mContext.getSystemService(StorageManager.class); |
| for (VolumeInfo vol : storage.getWritablePrivateVolumes()) { |
| final String volumeUuid = vol.getFsUuid(); |
| storage.prepareUserStorage(volumeUuid, userId, userSerial, flags); |
| } |
| } |
| |
| /** |
| * Called right before a user is started. This gives us a chance to prepare |
| * app storage and apply any user restrictions. |
| */ |
| public void onBeforeStartUser(int userId) { |
| final int userSerial = getUserSerialNumber(userId); |
| prepareUserStorage(userId, userSerial, StorageManager.FLAG_STORAGE_DE); |
| mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE); |
| |
| if (userId != UserHandle.USER_SYSTEM) { |
| synchronized (mRestrictionsLock) { |
| applyUserRestrictionsLR(userId); |
| } |
| } |
| } |
| |
| /** |
| * Called right before a user is unlocked. This gives us a chance to prepare |
| * app storage. |
| */ |
| public void onBeforeUnlockUser(int userId) { |
| final int userSerial = getUserSerialNumber(userId); |
| prepareUserStorage(userId, userSerial, StorageManager.FLAG_STORAGE_CE); |
| mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE); |
| } |
| |
| /** |
| * Make a note of the last started time of a user and do some cleanup. |
| * @param userId the user that was just foregrounded |
| */ |
| public void onUserForeground(int userId) { |
| UserData userData = getUserDataNoChecks(userId); |
| if (userData == null || userData.info.partial) { |
| Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); |
| return; |
| } |
| long now = System.currentTimeMillis(); |
| if (now > EPOCH_PLUS_30_YEARS) { |
| userData.info.lastLoggedInTime = now; |
| scheduleWriteUser(userData); |
| } |
| } |
| |
| /** |
| * Returns the next available user id, filling in any holes in the ids. |
| * TODO: May not be a good idea to recycle ids, in case it results in confusion |
| * for data and battery stats collection, or unexpected cross-talk. |
| */ |
| private int getNextAvailableId() { |
| synchronized (mUsersLock) { |
| int i = MIN_USER_ID; |
| while (i < MAX_USER_ID) { |
| if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { |
| return i; |
| } |
| i++; |
| } |
| } |
| throw new IllegalStateException("No user id available!"); |
| } |
| |
| private String packageToRestrictionsFileName(String packageName) { |
| return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; |
| } |
| |
| /** |
| * Enforce that serial number stored in user directory inode matches the |
| * given expected value. Gracefully sets the serial number if currently |
| * undefined. |
| * |
| * @throws IOException when problem extracting serial number, or serial |
| * number is mismatched. |
| */ |
| public static void enforceSerialNumber(File file, int serialNumber) throws IOException { |
| final int foundSerial = getSerialNumber(file); |
| Slog.v(LOG_TAG, "Found " + file + " with serial number " + foundSerial); |
| |
| if (foundSerial == -1) { |
| Slog.d(LOG_TAG, "Serial number missing on " + file + "; assuming current is valid"); |
| try { |
| setSerialNumber(file, serialNumber); |
| } catch (IOException e) { |
| Slog.w(LOG_TAG, "Failed to set serial number on " + file, e); |
| } |
| |
| } else if (foundSerial != serialNumber) { |
| throw new IOException("Found serial number " + foundSerial |
| + " doesn't match expected " + serialNumber); |
| } |
| } |
| |
| /** |
| * Set serial number stored in user directory inode. |
| * |
| * @throws IOException if serial number was already set |
| */ |
| private static void setSerialNumber(File file, int serialNumber) |
| throws IOException { |
| try { |
| final byte[] buf = Integer.toString(serialNumber).getBytes(StandardCharsets.UTF_8); |
| Os.setxattr(file.getAbsolutePath(), XATTR_SERIAL, buf, OsConstants.XATTR_CREATE); |
| } catch (ErrnoException e) { |
| throw e.rethrowAsIOException(); |
| } |
| } |
| |
| /** |
| * Return serial number stored in user directory inode. |
| * |
| * @return parsed serial number, or -1 if not set |
| */ |
| private static int getSerialNumber(File file) throws IOException { |
| try { |
| final byte[] buf = new byte[256]; |
| final int len = Os.getxattr(file.getAbsolutePath(), XATTR_SERIAL, buf); |
| final String serial = new String(buf, 0, len); |
| try { |
| return Integer.parseInt(serial); |
| } catch (NumberFormatException e) { |
| throw new IOException("Bad serial number: " + serial); |
| } |
| } catch (ErrnoException e) { |
| if (e.errno == OsConstants.ENODATA) { |
| return -1; |
| } else { |
| throw e.rethrowAsIOException(); |
| } |
| } |
| } |
| |
| @Override |
| public void setSeedAccountData(int userId, String accountName, String accountType, |
| PersistableBundle accountOptions, boolean persist) { |
| checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); |
| synchronized (mPackagesLock) { |
| final UserData userData; |
| synchronized (mUsersLock) { |
| userData = getUserDataLU(userId); |
| if (userData == null) { |
| Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); |
| return; |
| } |
| userData.seedAccountName = accountName; |
| userData.seedAccountType = accountType; |
| userData.seedAccountOptions = accountOptions; |
| userData.persistSeedData = persist; |
| } |
| if (persist) { |
| writeUserLP(userData); |
| } |
| } |
| } |
| |
| @Override |
| public String getSeedAccountName() throws RemoteException { |
| checkManageUsersPermission("Cannot get seed account information"); |
| synchronized (mUsersLock) { |
| UserData userData = getUserDataLU(UserHandle.getCallingUserId()); |
| return userData.seedAccountName; |
| } |
| } |
| |
| @Override |
| public String getSeedAccountType() throws RemoteException { |
| checkManageUsersPermission("Cannot get seed account information"); |
| synchronized (mUsersLock) { |
| UserData userData = getUserDataLU(UserHandle.getCallingUserId()); |
| return userData.seedAccountType; |
| } |
| } |
| |
| @Override |
| public PersistableBundle getSeedAccountOptions() throws RemoteException { |
| checkManageUsersPermission("Cannot get seed account information"); |
| synchronized (mUsersLock) { |
| UserData userData = getUserDataLU(UserHandle.getCallingUserId()); |
| return userData.seedAccountOptions; |
| } |
| } |
| |
| @Override |
| public void clearSeedAccountData() throws RemoteException { |
| checkManageUsersPermission("Cannot clear seed account information"); |
| synchronized (mPackagesLock) { |
| UserData userData; |
| synchronized (mUsersLock) { |
| userData = getUserDataLU(UserHandle.getCallingUserId()); |
| if (userData == null) return; |
| userData.clearSeedAccountData(); |
| } |
| writeUserLP(userData); |
| } |
| } |
| |
| @Override |
| public boolean someUserHasSeedAccount(String accountName, String accountType) |
| throws RemoteException { |
| checkManageUsersPermission("Cannot check seed account information"); |
| synchronized (mUsersLock) { |
| final int userSize = mUsers.size(); |
| for (int i = 0; i < userSize; i++) { |
| final UserData data = mUsers.valueAt(i); |
| if (data.info.isInitialized()) continue; |
| if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { |
| continue; |
| } |
| if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { |
| continue; |
| } |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public void onShellCommand(FileDescriptor in, FileDescriptor out, |
| FileDescriptor err, String[] args, ResultReceiver resultReceiver) { |
| (new Shell()).exec(this, in, out, err, args, resultReceiver); |
| } |
| |
| int onShellCommand(Shell shell, String cmd) { |
| if (cmd == null) { |
| return shell.handleDefaultCommands(cmd); |
| } |
| |
| final PrintWriter pw = shell.getOutPrintWriter(); |
| try { |
| switch(cmd) { |
| case "list": |
| return runList(pw); |
| } |
| } catch (RemoteException e) { |
| pw.println("Remote exception: " + e); |
| } |
| return -1; |
| } |
| |
| private int runList(PrintWriter pw) throws RemoteException { |
| final IActivityManager am = ActivityManagerNative.getDefault(); |
| final List<UserInfo> users = getUsers(false); |
| if (users == null) { |
| pw.println("Error: couldn't get users"); |
| return 1; |
| } else { |
| pw.println("Users:"); |
| for (int i = 0; i < users.size(); i++) { |
| String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; |
| pw.println("\t" + users.get(i).toString() + running); |
| } |
| return 0; |
| } |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
| if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) |
| != PackageManager.PERMISSION_GRANTED) { |
| pw.println("Permission Denial: can't dump UserManager from from pid=" |
| + Binder.getCallingPid() |
| + ", uid=" + Binder.getCallingUid() |
| + " without permission " |
| + android.Manifest.permission.DUMP); |
| return; |
| } |
| |
| long now = System.currentTimeMillis(); |
| StringBuilder sb = new StringBuilder(); |
| synchronized (mPackagesLock) { |
| synchronized (mUsersLock) { |
| pw.println("Users:"); |
| for (int i = 0; i < mUsers.size(); i++) { |
| UserData userData = mUsers.valueAt(i); |
| if (userData == null) { |
| continue; |
| } |
| UserInfo userInfo = userData.info; |
| final int userId = userInfo.id; |
| pw.print(" "); pw.print(userInfo); |
| pw.print(" serialNo="); pw.print(userInfo.serialNumber); |
| if (mRemovingUserIds.get(userId)) { |
| pw.print(" <removing> "); |
| } |
| if (userInfo.partial) { |
| pw.print(" <partial>"); |
| } |
| pw.println(); |
| pw.print(" Created: "); |
| if (userInfo.creationTime == 0) { |
| pw.println("<unknown>"); |
| } else { |
| sb.setLength(0); |
| TimeUtils.formatDuration(now - userInfo.creationTime, sb); |
| sb.append(" ago"); |
| pw.println(sb); |
| } |
| pw.print(" Last logged in: "); |
| if (userInfo.lastLoggedInTime == 0) { |
| pw.println("<unknown>"); |
| } else { |
| sb.setLength(0); |
| TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); |
| sb.append(" ago"); |
| pw.println(sb); |
| } |
| pw.print(" Has profile owner: "); |
| pw.println(mIsUserManaged.get(userId)); |
| pw.println(" Restrictions:"); |
| synchronized (mRestrictionsLock) { |
| UserRestrictionsUtils.dumpRestrictions( |
| pw, " ", mBaseUserRestrictions.get(userInfo.id)); |
| pw.println(" Device policy local restrictions:"); |
| UserRestrictionsUtils.dumpRestrictions( |
| pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); |
| pw.println(" Effective restrictions:"); |
| UserRestrictionsUtils.dumpRestrictions( |
| pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); |
| } |
| |
| if (userData.account != null) { |
| pw.print(" Account name: " + userData.account); |
| pw.println(); |
| } |
| |
| if (userData.seedAccountName != null) { |
| pw.print(" Seed account name: " + userData.seedAccountName); |
| pw.println(); |
| if (userData.seedAccountType != null) { |
| pw.print(" account type: " + userData.seedAccountType); |
| pw.println(); |
| } |
| if (userData.seedAccountOptions != null) { |
| pw.print(" account options exist"); |
| pw.println(); |
| } |
| } |
| } |
| } |
| pw.println(); |
| pw.println(" Device policy global restrictions:"); |
| synchronized (mRestrictionsLock) { |
| UserRestrictionsUtils |
| .dumpRestrictions(pw, " ", mDevicePolicyGlobalUserRestrictions); |
| } |
| pw.println(); |
| pw.println(" Guest restrictions:"); |
| synchronized (mGuestRestrictions) { |
| UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); |
| } |
| synchronized (mUsersLock) { |
| pw.println(); |
| pw.println(" Device managed: " + mIsDeviceManaged); |
| } |
| // Dump some capabilities |
| pw.println(); |
| pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); |
| pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); |
| pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( |
| com.android.internal.R.bool.config_guestUserEphemeral)); |
| } |
| } |
| |
| final class MainHandler extends Handler { |
| |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case WRITE_USER_MSG: |
| removeMessages(WRITE_USER_MSG, msg.obj); |
| synchronized (mPackagesLock) { |
| int userId = ((UserData) msg.obj).info.id; |
| UserData userData = getUserDataNoChecks(userId); |
| if (userData != null) { |
| writeUserLP(userData); |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * @param userId |
| * @return whether the user has been initialized yet |
| */ |
| boolean isInitialized(int userId) { |
| return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; |
| } |
| |
| private class LocalService extends UserManagerInternal { |
| @Override |
| public void setDevicePolicyUserRestrictions(int userId, @NonNull Bundle localRestrictions, |
| @Nullable Bundle globalRestrictions) { |
| UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, localRestrictions, |
| globalRestrictions); |
| } |
| |
| @Override |
| public Bundle getBaseUserRestrictions(int userId) { |
| synchronized (mRestrictionsLock) { |
| return mBaseUserRestrictions.get(userId); |
| } |
| } |
| |
| @Override |
| public void setBaseUserRestrictionsByDpmsForMigration( |
| int userId, Bundle baseRestrictions) { |
| synchronized (mRestrictionsLock) { |
| mBaseUserRestrictions.put(userId, new Bundle(baseRestrictions)); |
| invalidateEffectiveUserRestrictionsLR(userId); |
| } |
| |
| final UserData userData = getUserDataNoChecks(userId); |
| synchronized (mPackagesLock) { |
| if (userData != null) { |
| writeUserLP(userData); |
| } else { |
| Slog.w(LOG_TAG, "UserInfo not found for " + userId); |
| } |
| } |
| } |
| |
| @Override |
| public boolean getUserRestriction(int userId, String key) { |
| return getUserRestrictions(userId).getBoolean(key); |
| } |
| |
| @Override |
| public void addUserRestrictionsListener(UserRestrictionsListener listener) { |
| synchronized (mUserRestrictionsListeners) { |
| mUserRestrictionsListeners.add(listener); |
| } |
| } |
| |
| @Override |
| public void removeUserRestrictionsListener(UserRestrictionsListener listener) { |
| synchronized (mUserRestrictionsListeners) { |
| mUserRestrictionsListeners.remove(listener); |
| } |
| } |
| |
| @Override |
| public void setDeviceManaged(boolean isManaged) { |
| synchronized (mUsersLock) { |
| mIsDeviceManaged = isManaged; |
| } |
| } |
| |
| @Override |
| public void setUserManaged(int userId, boolean isManaged) { |
| synchronized (mUsersLock) { |
| mIsUserManaged.put(userId, isManaged); |
| } |
| } |
| |
| @Override |
| public void setUserIcon(int userId, Bitmap bitmap) { |
| long ident = Binder.clearCallingIdentity(); |
| try { |
| synchronized (mPackagesLock) { |
| UserData userData = getUserDataNoChecks(userId); |
| if (userData == null || userData.info.partial) { |
| Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); |
| return; |
| } |
| writeBitmapLP(userData.info, bitmap); |
| writeUserLP(userData); |
| } |
| sendUserInfoChangedBroadcast(userId); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @Override |
| public void setForceEphemeralUsers(boolean forceEphemeralUsers) { |
| synchronized (mUsersLock) { |
| mForceEphemeralUsers = forceEphemeralUsers; |
| } |
| } |
| |
| @Override |
| public void removeAllUsers() { |
| if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { |
| // Remove the non-system users straight away. |
| removeNonSystemUsers(); |
| } else { |
| // Switch to the system user first and then remove the other users. |
| BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| int userId = |
| intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); |
| if (userId != UserHandle.USER_SYSTEM) { |
| return; |
| } |
| mContext.unregisterReceiver(this); |
| removeNonSystemUsers(); |
| } |
| }; |
| IntentFilter userSwitchedFilter = new IntentFilter(); |
| userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); |
| mContext.registerReceiver( |
| userSwitchedReceiver, userSwitchedFilter, null, mHandler); |
| |
| // Switch to the system user. |
| ActivityManager am = |
| (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); |
| am.switchUser(UserHandle.USER_SYSTEM); |
| } |
| } |
| |
| @Override |
| public void onEphemeralUserStop(int userId) { |
| synchronized (mUsersLock) { |
| UserInfo userInfo = getUserInfoLU(userId); |
| if (userInfo != null && userInfo.isEphemeral()) { |
| // Do not allow switching back to the ephemeral user again as the user is going |
| // to be deleted. |
| userInfo.flags |= UserInfo.FLAG_DISABLED; |
| if (userInfo.isGuest()) { |
| // Indicate that the guest will be deleted after it stops. |
| userInfo.guestToRemove = true; |
| } |
| } |
| } |
| } |
| |
| @Override |
| public UserInfo createUserEvenWhenDisallowed(String name, int flags) { |
| UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL); |
| // Keep this in sync with UserManager.createUser |
| if (user != null && !user.isAdmin()) { |
| setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); |
| setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); |
| } |
| return user; |
| } |
| } |
| |
| /* Remove all the users except of the system one. */ |
| private void removeNonSystemUsers() { |
| ArrayList<UserInfo> usersToRemove = new ArrayList<>(); |
| synchronized (mUsersLock) { |
| final int userSize = mUsers.size(); |
| for (int i = 0; i < userSize; i++) { |
| UserInfo ui = mUsers.valueAt(i).info; |
| if (ui.id != UserHandle.USER_SYSTEM) { |
| usersToRemove.add(ui); |
| } |
| } |
| } |
| for (UserInfo ui: usersToRemove) { |
| removeUser(ui.id); |
| } |
| } |
| |
| private class Shell extends ShellCommand { |
| @Override |
| public int onCommand(String cmd) { |
| return onShellCommand(this, cmd); |
| } |
| |
| @Override |
| public void onHelp() { |
| final PrintWriter pw = getOutPrintWriter(); |
| pw.println("User manager (user) commands:"); |
| pw.println(" help"); |
| pw.println(" Print this help text."); |
| pw.println(""); |
| pw.println(" list"); |
| pw.println(" Prints all users on the system."); |
| } |
| } |
| |
| private static void debug(String message) { |
| Log.d(LOG_TAG, message + |
| (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); |
| } |
| } |