Google Git
Sign in
android / platform / prebuilts / fullsdk / sources / android-30 / refs/heads/androidx-activity-release / . / com / android / server / pm / UserManagerService.java
blob: e6af86e52035ed3a63d86f0dc1c096b156556c14 [file] [log] [blame]
/*
* 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 static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS;
import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
import android.Manifest;
import android.annotation.ColorRes;
import android.annotation.DrawableRes;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.StringRes;
import android.annotation.UserIdInt;
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.app.KeyguardManager;
import android.app.PendingIntent;
import android.app.admin.DevicePolicyEventLogger;
import android.app.admin.DevicePolicyManagerInternal;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.IntentSender;
import android.content.pm.CrossProfileAppsInternal;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.PackageManagerInternal;
import android.content.pm.ShortcutServiceInternal;
import android.content.pm.UserInfo;
import android.content.pm.UserInfo.UserInfoFlag;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.os.Binder;
import android.os.Build;
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.IProgressListener;
import android.os.IUserManager;
import android.os.IUserRestrictionsListener;
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.ServiceSpecificException;
import android.os.ShellCallback;
import android.os.ShellCommand;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.os.UserHandle;
import android.os.UserManager;
import android.os.UserManager.EnforcingUser;
import android.os.UserManager.QuietModeFlag;
import android.os.UserManagerInternal;
import android.os.UserManagerInternal.UserRestrictionsListener;
import android.os.storage.StorageManager;
import android.security.GateKeeper;
import android.service.gatekeeper.IGateKeeperService;
import android.stats.devicepolicy.DevicePolicyEnums;
import android.util.ArrayMap;
import android.util.ArraySet;
import android.util.AtomicFile;
import android.util.IntArray;
import android.util.Slog;
import android.util.SparseArray;
import android.util.SparseBooleanArray;
import android.util.SparseIntArray;
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.os.BackgroundThread;
import com.android.internal.util.DumpUtils;
import com.android.internal.util.FastXmlSerializer;
import com.android.internal.util.FrameworkStatsLog;
import com.android.internal.util.IndentingPrintWriter;
import com.android.internal.util.Preconditions;
import com.android.internal.util.XmlUtils;
import com.android.internal.widget.LockPatternUtils;
import com.android.server.LocalServices;
import com.android.server.LockGuard;
import com.android.server.SystemService;
import com.android.server.am.UserState;
import com.android.server.storage.DeviceStorageMonitorInternal;
import com.android.server.utils.TimingsTraceAndSlog;
import com.android.server.wm.ActivityTaskManagerInternal;
import libcore.io.IoUtils;
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.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.ThreadLocalRandom;
/**
* Service for {@link UserManager}.
*
* Method naming convention:
* <ul>
* <li> Methods suffixed with "LAr" should be called within the {@link #mAppRestrictionsLock} lock.
* <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
// Can be used for manual testing of id recycling
private static final boolean RELEASE_DELETED_USER_ID = 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_TYPE = "type";
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_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint";
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_PRE_CREATED = "preCreated";
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_PROFILE_BADGE = "profileBadge";
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_DEVICE_POLICY_LOCAL_RESTRICTIONS =
"device_policy_local_restrictions";
private static final String TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS =
"device_policy_global_restrictions";
/** Legacy name for device owner id tag. */
private static final String TAG_GLOBAL_RESTRICTION_OWNER_ID = "globalRestrictionOwnerUserId";
private static final String TAG_DEVICE_OWNER_USER_ID = "deviceOwnerUserId";
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 TAG_LAST_REQUEST_QUIET_MODE_ENABLED_CALL =
"lastRequestQuietModeEnabledCall";
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 ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION =
UserInfo.FLAG_MANAGED_PROFILE
| UserInfo.FLAG_EPHEMERAL
| UserInfo.FLAG_RESTRICTED
| UserInfo.FLAG_GUEST
| UserInfo.FLAG_DEMO;
@VisibleForTesting
static final int MIN_USER_ID = UserHandle.MIN_SECONDARY_USER_ID;
// We need to keep process uid within Integer.MAX_VALUE.
@VisibleForTesting
static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE;
// Max size of the queue of recently removed users
@VisibleForTesting
static final int MAX_RECENTLY_REMOVED_IDS_SIZE = 100;
private static final int USER_VERSION = 9;
private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms
static final int WRITE_USER_MSG = 1;
static final int WRITE_USER_DELAY = 2*1000; // 2 seconds
// Tron counters
private static final String TRON_GUEST_CREATED = "users_guest_created";
private static final String TRON_USER_CREATED = "users_user_created";
private static final String TRON_DEMO_CREATED = "users_demo_created";
private final Context mContext;
private final PackageManagerService mPm;
private final Object mPackagesLock;
private final UserDataPreparer mUserDataPreparer;
// Short-term lock for internal state, when interaction/sync with PM is not required
private final Object mUsersLock = LockGuard.installNewLock(LockGuard.INDEX_USER);
private final Object mRestrictionsLock = new Object();
// Used for serializing access to app restriction files
private final Object mAppRestrictionsLock = new Object();
private final Handler mHandler;
private final File mUsersDir;
private final File mUserListFile;
private static final IBinder mUserRestriconToken = new Binder();
/** Installs system packages based on user-type. */
private final UserSystemPackageInstaller mSystemPackageInstaller;
private PackageManagerInternal mPmInternal;
private CrossProfileAppsInternal mCrossProfileAppsInternal;
private DevicePolicyManagerInternal mDevicePolicyManagerInternal;
/**
* Internal non-parcelable wrapper for UserInfo that is not exposed to other system apps.
*/
@VisibleForTesting
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;
/** Elapsed realtime since boot when the user started. */
long startRealtime;
/** Elapsed realtime since boot when the user was unlocked. */
long unlockRealtime;
private long mLastRequestQuietModeEnabledMillis;
void setLastRequestQuietModeEnabledMillis(long millis) {
mLastRequestQuietModeEnabledMillis = millis;
}
long getLastRequestQuietModeEnabledMillis() {
return mLastRequestQuietModeEnabledMillis;
}
void clearSeedAccountData() {
seedAccountName = null;
seedAccountType = null;
seedAccountOptions = null;
persistSeedData = false;
}
}
@GuardedBy("mUsersLock")
private final SparseArray<UserData> mUsers = new SparseArray<>();
/**
* Map of user type names to their corresponding {@link UserTypeDetails}.
* Should not be modified after UserManagerService constructor finishes.
*/
private final ArrayMap<String, UserTypeDetails> mUserTypes;
/**
* User restrictions set via UserManager. This doesn't include restrictions set by
* device owner / profile owners. Only non-empty restriction bundles are stored.
*
* 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 RestrictionsSet mBaseUserRestrictions = new RestrictionsSet();
/**
* 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 RestrictionsSet mCachedEffectiveUserRestrictions = new RestrictionsSet();
/**
* 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 RestrictionsSet mAppliedUserRestrictions = new RestrictionsSet();
/**
* User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService}
* that should be applied to all users, including guests. Only non-empty restriction bundles are
* stored.
* The key is the user id of the user whom the restriction originated from.
*/
@GuardedBy("mRestrictionsLock")
private final RestrictionsSet mDevicePolicyGlobalUserRestrictions = new RestrictionsSet();
/**
* Id of the user that set global restrictions.
*/
@GuardedBy("mRestrictionsLock")
private int mDeviceOwnerUserId = UserHandle.USER_NULL;
/**
* User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService}
* for each user.
* The key is the user id of the user whom the restrictions are targeting.
* The key inside the restrictionsSet is the user id of the user whom the restriction
* originated from.
* targetUserId -> originatingUserId -> restrictionBundle
*/
@GuardedBy("mRestrictionsLock")
private final SparseArray<RestrictionsSet> 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.
* Use {@link #addRemovingUserIdLocked(int)} to add elements to this array
*/
@GuardedBy("mUsersLock")
private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray();
/**
* Queue of recently removed userIds. Used for recycling of userIds
*/
@GuardedBy("mUsersLock")
private final LinkedList<Integer> mRecentlyRemovedIds = new LinkedList<>();
@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;
private final String ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK =
"com.android.server.pm.DISABLE_QUIET_MODE_AFTER_UNLOCK";
private final BroadcastReceiver mDisableQuietModeCallback = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (!ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK.equals(intent.getAction())) {
return;
}
final IntentSender target = intent.getParcelableExtra(Intent.EXTRA_INTENT);
final int userId = intent.getIntExtra(Intent.EXTRA_USER_ID, UserHandle.USER_NULL);
// Call setQuietModeEnabled on bg thread to avoid ANR
BackgroundThread.getHandler().post(() ->
setQuietModeEnabled(userId, false, target, /* callingPackage */ null));
}
};
/**
* Start an {@link IntentSender} when user is unlocked after disabling quiet mode.
*
* @see #requestQuietModeEnabled(String, boolean, int, IntentSender, int)
*/
private class DisableQuietModeUserUnlockedCallback extends IProgressListener.Stub {
private final IntentSender mTarget;
public DisableQuietModeUserUnlockedCallback(IntentSender target) {
Objects.requireNonNull(target);
mTarget = target;
}
@Override
public void onStarted(int id, Bundle extras) {}
@Override
public void onProgress(int id, int progress, Bundle extras) {}
@Override
public void onFinished(int id, Bundle extras) {
mHandler.post(() -> {
try {
mContext.startIntentSender(mTarget, null, 0, 0, 0);
} catch (IntentSender.SendIntentException e) {
Slog.e(LOG_TAG, "Failed to start the target in the callback", e);
}
});
}
}
/**
* Whether all users should be created ephemeral.
*/
@GuardedBy("mUsersLock")
private boolean mForceEphemeralUsers;
/**
* The member mUserStates affects the return value of isUserUnlocked.
* If any value in mUserStates changes, then the binder cache for
* isUserUnlocked must be invalidated. When adding mutating methods to
* WatchedUserStates, be sure to invalidate the cache in the new
* methods.
*/
private class WatchedUserStates {
final SparseIntArray states;
public WatchedUserStates() {
states = new SparseIntArray();
}
public int get(int userId) {
return states.get(userId);
}
public int get(int userId, int fallback) {
return states.indexOfKey(userId) >= 0 ? states.get(userId) : fallback;
}
public void put(int userId, int state) {
states.put(userId, state);
invalidateIsUserUnlockedCache();
}
public void delete(int userId) {
states.delete(userId);
invalidateIsUserUnlockedCache();
}
@Override
public String toString() {
return states.toString();
}
private void invalidateIsUserUnlockedCache() {
UserManager.invalidateIsUserUnlockedCache();
}
}
@GuardedBy("mUserStates")
private final WatchedUserStates mUserStates = new WatchedUserStates();
private static UserManagerService sInstance;
public static UserManagerService getInstance() {
synchronized (UserManagerService.class) {
return sInstance;
}
}
public static class LifeCycle extends SystemService {
private UserManagerService mUms;
/**
* @param context
*/
public LifeCycle(Context context) {
super(context);
}
@Override
public void onStart() {
mUms = UserManagerService.getInstance();
publishBinderService(Context.USER_SERVICE, mUms);
}
@Override
public void onBootPhase(int phase) {
if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) {
mUms.cleanupPartialUsers();
if (mUms.mPm.isDeviceUpgrading()) {
mUms.cleanupPreCreatedUsers();
}
}
}
@Override
public void onStartUser(@UserIdInt int userId) {
synchronized (mUms.mUsersLock) {
final UserData user = mUms.getUserDataLU(userId);
if (user != null) {
user.startRealtime = SystemClock.elapsedRealtime();
}
}
}
@Override
public void onUnlockUser(@UserIdInt int userId) {
synchronized (mUms.mUsersLock) {
final UserData user = mUms.getUserDataLU(userId);
if (user != null) {
user.unlockRealtime = SystemClock.elapsedRealtime();
}
}
}
@Override
public void onStopUser(@UserIdInt int userId) {
synchronized (mUms.mUsersLock) {
final UserData user = mUms.getUserDataLU(userId);
if (user != null) {
user.startRealtime = 0;
user.unlockRealtime = 0;
}
}
}
}
// TODO b/28848102 Add support for test dependencies injection
@VisibleForTesting
UserManagerService(Context context) {
this(context, null, null, new Object(), context.getCacheDir());
}
/**
* 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, UserDataPreparer userDataPreparer,
Object packagesLock) {
this(context, pm, userDataPreparer, packagesLock, Environment.getDataDirectory());
}
private UserManagerService(Context context, PackageManagerService pm,
UserDataPreparer userDataPreparer, Object packagesLock, File dataDir) {
mContext = context;
mPm = pm;
mPackagesLock = packagesLock;
mHandler = new MainHandler();
mUserDataPreparer = userDataPreparer;
mUserTypes = UserTypeFactory.getUserTypes();
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;
}
mSystemPackageInstaller = new UserSystemPackageInstaller(this, mUserTypes);
mLocalService = new LocalService();
LocalServices.addService(UserManagerInternal.class, mLocalService);
mLockPatternUtils = new LockPatternUtils(mContext);
mUserStates.put(UserHandle.USER_SYSTEM, UserState.STATE_BOOTING);
}
void systemReady() {
mAppOpsService = IAppOpsService.Stub.asInterface(
ServiceManager.getService(Context.APP_OPS_SERVICE));
synchronized (mRestrictionsLock) {
applyUserRestrictionsLR(UserHandle.USER_SYSTEM);
}
mContext.registerReceiver(mDisableQuietModeCallback,
new IntentFilter(ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK),
null, mHandler);
}
/**
* This method retrieves the {@link UserManagerInternal} only for the purpose of
* PackageManagerService construction.
*/
UserManagerInternal getInternalForInjectorOnly() {
return mLocalService;
}
void cleanupPartialUsers() {
// 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() && !ui.preCreated))
&& i != 0) {
partials.add(ui);
addRemovingUserIdLocked(ui.id);
ui.partial = true;
}
}
}
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);
}
}
/**
* Removes any pre-created users from the system. Should be invoked after OTAs, to ensure
* pre-created users are not stale. New pre-created pool can be re-created after the update.
*/
void cleanupPreCreatedUsers() {
final ArrayList<UserInfo> preCreatedUsers;
synchronized (mUsersLock) {
final int userSize = mUsers.size();
preCreatedUsers = new ArrayList<>(userSize);
for (int i = 0; i < userSize; i++) {
UserInfo ui = mUsers.valueAt(i).info;
if (ui.preCreated) {
preCreatedUsers.add(ui);
addRemovingUserIdLocked(ui.id);
ui.flags |= UserInfo.FLAG_DISABLED;
ui.partial = true;
}
}
}
final int preCreatedSize = preCreatedUsers.size();
for (int i = 0; i < preCreatedSize; i++) {
UserInfo ui = preCreatedUsers.get(i);
Slog.i(LOG_TAG, "Removing pre-created user " + ui.id);
removeUserState(ui.id);
}
}
@Override
public String getUserAccount(@UserIdInt int userId) {
checkManageUserAndAcrossUsersFullPermission("get user account");
synchronized (mUsersLock) {
return mUsers.get(userId).account;
}
}
@Override
public void setUserAccount(@UserIdInt 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.equals(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;
}
public @NonNull List<UserInfo> getUsers(boolean excludeDying) {
return getUsers(/*excludePartial= */ true, excludeDying, /* excludePreCreated= */ true);
}
@Override
public @NonNull List<UserInfo> getUsers(boolean excludePartial, boolean excludeDying,
boolean excludePreCreated) {
checkManageOrCreateUsersPermission("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 ((excludePartial && ui.partial)
|| (excludeDying && mRemovingUserIds.get(ui.id))
|| (excludePreCreated && ui.preCreated)) {
continue;
}
users.add(userWithName(ui));
}
return users;
}
}
@Override
public List<UserInfo> getProfiles(@UserIdInt int userId, boolean enabledOnly) {
boolean returnFullInfo = true;
if (userId != UserHandle.getCallingUserId()) {
checkManageOrCreateUsersPermission("getting profiles related to user " + userId);
} else {
returnFullInfo = hasManageUsersPermission();
}
final long ident = Binder.clearCallingIdentity();
try {
synchronized (mUsersLock) {
return getProfilesLU(userId, /* userType */ null, enabledOnly, returnFullInfo);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
// TODO(b/142482943): Will probably need a getProfiles(userType). But permissions may vary.
@Override
public int[] getProfileIds(@UserIdInt int userId, boolean enabledOnly) {
return getProfileIds(userId, null, enabledOnly);
}
// TODO(b/142482943): Probably @Override and make this accessible in UserManager.
/**
* Returns all the users of type userType that are in the same profile group as userId
* (including userId itself, if it is of the appropriate user type).
*
* <p>If userType is non-{@code null}, only returns users that are of type userType.
* If enabledOnly, only returns users that are not {@link UserInfo#FLAG_DISABLED}.
*/
public int[] getProfileIds(@UserIdInt int userId, @Nullable String userType,
boolean enabledOnly) {
if (userId != UserHandle.getCallingUserId()) {
checkManageOrCreateUsersPermission("getting profiles related to user " + userId);
}
final long ident = Binder.clearCallingIdentity();
try {
synchronized (mUsersLock) {
return getProfileIdsLU(userId, userType, enabledOnly).toArray();
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
/** Assume permissions already checked and caller's identity cleared */
@GuardedBy("mUsersLock")
private List<UserInfo> getProfilesLU(@UserIdInt int userId, @Nullable String userType,
boolean enabledOnly, boolean fullInfo) {
IntArray profileIds = getProfileIdsLU(userId, userType, enabledOnly);
ArrayList<UserInfo> users = new ArrayList<>(profileIds.size());
for (int i = 0; i < profileIds.size(); i++) {
int profileId = profileIds.get(i);
UserInfo userInfo = mUsers.get(profileId).info;
// If full info is not required - clear PII data to prevent 3P apps from reading it
if (!fullInfo) {
userInfo = new UserInfo(userInfo);
userInfo.name = null;
userInfo.iconPath = null;
} else {
userInfo = userWithName(userInfo);
}
users.add(userInfo);
}
return users;
}
/**
* Assume permissions already checked and caller's identity cleared
* <p>If userType is {@code null}, returns all profiles for user; else, only returns
* profiles of that type.
*/
@GuardedBy("mUsersLock")
private IntArray getProfileIdsLU(@UserIdInt int userId, @Nullable String userType,
boolean enabledOnly) {
UserInfo user = getUserInfoLU(userId);
IntArray result = new IntArray(mUsers.size());
if (user == null) {
// Probably a dying user
return result;
}
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;
}
if (profile.partial) {
continue;
}
if (userType != null && !userType.equals(profile.userType)) {
continue;
}
result.add(profile.id);
}
return result;
}
@Override
public int getCredentialOwnerProfile(@UserIdInt int userId) {
checkManageUsersPermission("get the credential owner");
if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userId)) {
synchronized (mUsersLock) {
UserInfo profileParent = getProfileParentLU(userId);
if (profileParent != null) {
return profileParent.id;
}
}
}
return userId;
}
@Override
public boolean isSameProfileGroup(@UserIdInt int userId, int otherUserId) {
if (userId == otherUserId) return true;
checkManageUsersPermission("check if in the same profile group");
return isSameProfileGroupNoChecks(userId, otherUserId);
}
private boolean isSameProfileGroupNoChecks(@UserIdInt 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(@UserIdInt int userId) {
checkManageUsersPermission("get the profile parent");
synchronized (mUsersLock) {
return getProfileParentLU(userId);
}
}
@Override
public int getProfileParentId(@UserIdInt int userId) {
checkManageUsersPermission("get the profile parent");
return mLocalService.getProfileParentId(userId);
}
@GuardedBy("mUsersLock")
private UserInfo getProfileParentLU(@UserIdInt int userId) {
UserInfo profile = getUserInfoLU(userId);
if (profile == null) {
return null;
}
int parentUserId = profile.profileGroupId;
if (parentUserId == userId || 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();
if (inQuietMode) {
intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE);
} else {
intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE);
}
intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode);
intent.putExtra(Intent.EXTRA_USER, profileHandle);
intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier());
getDevicePolicyManagerInternal().broadcastIntentToCrossProfileManifestReceiversAsUser(
intent, parentHandle, /* requiresPermission= */ true);
intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
mContext.sendBroadcastAsUser(intent, parentHandle);
}
@Override
public boolean requestQuietModeEnabled(@NonNull String callingPackage, boolean enableQuietMode,
@UserIdInt int userId, @Nullable IntentSender target, @QuietModeFlag int flags) {
Objects.requireNonNull(callingPackage);
if (enableQuietMode && target != null) {
throw new IllegalArgumentException(
"target should only be specified when we are disabling quiet mode.");
}
final boolean dontAskCredential =
(flags & UserManager.QUIET_MODE_DISABLE_DONT_ASK_CREDENTIAL) != 0;
final boolean onlyIfCredentialNotRequired =
(flags & UserManager.QUIET_MODE_DISABLE_ONLY_IF_CREDENTIAL_NOT_REQUIRED) != 0;
if (dontAskCredential && onlyIfCredentialNotRequired) {
throw new IllegalArgumentException("invalid flags: " + flags);
}
ensureCanModifyQuietMode(
callingPackage, Binder.getCallingUid(), userId, target != null, dontAskCredential);
final long identity = Binder.clearCallingIdentity();
try {
if (enableQuietMode) {
setQuietModeEnabled(
userId, true /* enableQuietMode */, target, callingPackage);
return true;
}
mLockPatternUtils.tryUnlockWithCachedUnifiedChallenge(userId);
final boolean needToShowConfirmCredential = !dontAskCredential
&& mLockPatternUtils.isSecure(userId)
&& !StorageManager.isUserKeyUnlocked(userId);
if (needToShowConfirmCredential) {
if (onlyIfCredentialNotRequired) {
return false;
}
showConfirmCredentialToDisableQuietMode(userId, target);
return false;
}
setQuietModeEnabled(userId, false /* enableQuietMode */, target, callingPackage);
return true;
} finally {
Binder.restoreCallingIdentity(identity);
}
}
/**
* The caller can modify quiet mode if it meets one of these conditions:
* <ul>
* <li>Has system UID or root UID</li>
* <li>Has {@link Manifest.permission#MODIFY_QUIET_MODE}</li>
* <li>Has {@link Manifest.permission#MANAGE_USERS}</li>
* <li>Is the foreground default launcher app</li>
* </ul>
* <p>
* If caller wants to start an intent after disabling the quiet mode, or if it is targeting a
* user in a different profile group from the caller, it must have
* {@link Manifest.permission#MANAGE_USERS}.
*/
private void ensureCanModifyQuietMode(String callingPackage, int callingUid,
@UserIdInt int targetUserId, boolean startIntent, boolean dontAskCredential) {
if (hasManageUsersPermission()) {
return;
}
if (startIntent) {
throw new SecurityException("MANAGE_USERS permission is required to start intent "
+ "after disabling quiet mode.");
}
if (dontAskCredential) {
throw new SecurityException("MANAGE_USERS permission is required to disable quiet "
+ "mode without credentials.");
}
if (!isSameProfileGroupNoChecks(UserHandle.getUserId(callingUid), targetUserId)) {
throw new SecurityException("MANAGE_USERS permission is required to modify quiet mode "
+ "for a different profile group.");
}
final boolean hasModifyQuietModePermission = hasPermissionGranted(
Manifest.permission.MODIFY_QUIET_MODE, callingUid);
if (hasModifyQuietModePermission) {
return;
}
verifyCallingPackage(callingPackage, callingUid);
final ShortcutServiceInternal shortcutInternal =
LocalServices.getService(ShortcutServiceInternal.class);
if (shortcutInternal != null) {
boolean isForegroundLauncher =
shortcutInternal.isForegroundDefaultLauncher(callingPackage, callingUid);
if (isForegroundLauncher) {
return;
}
}
throw new SecurityException("Can't modify quiet mode, caller is neither foreground "
+ "default launcher nor has MANAGE_USERS/MODIFY_QUIET_MODE permission");
}
private void setQuietModeEnabled(@UserIdInt int userId, boolean enableQuietMode,
IntentSender target, @Nullable String callingPackage) {
final UserInfo profile, parent;
final UserData profileUserData;
synchronized (mUsersLock) {
profile = getUserInfoLU(userId);
parent = getProfileParentLU(userId);
if (profile == null || !profile.isManagedProfile()) {
throw new IllegalArgumentException("User " + userId + " is not a profile");
}
if (profile.isQuietModeEnabled() == enableQuietMode) {
Slog.i(LOG_TAG, "Quiet mode is already " + enableQuietMode);
return;
}
profile.flags ^= UserInfo.FLAG_QUIET_MODE;
profileUserData = getUserDataLU(profile.id);
}
synchronized (mPackagesLock) {
writeUserLP(profileUserData);
}
try {
if (enableQuietMode) {
ActivityManager.getService().stopUser(userId, /* force */true, null);
LocalServices.getService(ActivityManagerInternal.class)
.killForegroundAppsForUser(userId);
} else {
IProgressListener callback = target != null
? new DisableQuietModeUserUnlockedCallback(target)
: null;
ActivityManager.getService().startUserInBackgroundWithListener(
userId, callback);
}
logQuietModeEnabled(userId, enableQuietMode, callingPackage);
} catch (RemoteException e) {
// Should not happen, same process.
e.rethrowAsRuntimeException();
}
broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(),
enableQuietMode);
}
private void logQuietModeEnabled(@UserIdInt int userId, boolean enableQuietMode,
@Nullable String callingPackage) {
UserData userData;
synchronized (mUsersLock) {
userData = getUserDataLU(userId);
}
if (userData == null) {
return;
}
final long now = System.currentTimeMillis();
final long period = (userData.getLastRequestQuietModeEnabledMillis() != 0L
? now - userData.getLastRequestQuietModeEnabledMillis()
: now - userData.info.creationTime);
DevicePolicyEventLogger
.createEvent(DevicePolicyEnums.REQUEST_QUIET_MODE_ENABLED)
.setStrings(callingPackage)
.setBoolean(enableQuietMode)
.setTimePeriod(period)
.write();
userData.setLastRequestQuietModeEnabledMillis(now);
}
@Override
public boolean isQuietModeEnabled(@UserIdInt int userId) {
synchronized (mPackagesLock) {
UserInfo info;
synchronized (mUsersLock) {
info = getUserInfoLU(userId);
}
if (info == null || !info.isManagedProfile()) {
return false;
}
return info.isQuietModeEnabled();
}
}
/**
* Show confirm credential screen to unlock user in order to turn off quiet mode.
*/
private void showConfirmCredentialToDisableQuietMode(
@UserIdInt int userId, @Nullable IntentSender target) {
// otherwise, we show a profile challenge to trigger decryption of the user
final KeyguardManager km = (KeyguardManager) mContext.getSystemService(
Context.KEYGUARD_SERVICE);
// We should use userId not credentialOwnerUserId here, as even if it is unified
// lock, confirm screenlock page will know and show personal challenge, and unlock
// work profile when personal challenge is correct
final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, userId);
if (unlockIntent == null) {
return;
}
final Intent callBackIntent = new Intent(
ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK);
if (target != null) {
callBackIntent.putExtra(Intent.EXTRA_INTENT, target);
}
callBackIntent.putExtra(Intent.EXTRA_USER_ID, userId);
callBackIntent.setPackage(mContext.getPackageName());
callBackIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
final PendingIntent pendingIntent = PendingIntent.getBroadcast(
mContext,
0,
callBackIntent,
PendingIntent.FLAG_CANCEL_CURRENT |
PendingIntent.FLAG_ONE_SHOT |
PendingIntent.FLAG_IMMUTABLE);
// After unlocking the challenge, it will disable quiet mode and run the original
// intentSender
unlockIntent.putExtra(Intent.EXTRA_INTENT, pendingIntent.getIntentSender());
unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
mContext.startActivity(unlockIntent);
}
@Override
public void setUserEnabled(@UserIdInt 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 void setUserAdmin(@UserIdInt int userId) {
checkManageUserAndAcrossUsersFullPermission("set user admin");
synchronized (mPackagesLock) {
UserInfo info;
synchronized (mUsersLock) {
info = getUserInfoLU(userId);
}
if (info == null || info.isAdmin()) {
// Exit if no user found with that id, or the user is already an Admin.
return;
}
info.flags ^= UserInfo.FLAG_ADMIN;
writeUserLP(getUserDataLU(info.id));
}
}
/**
* Evicts a user's CE key by stopping and restarting the user.
*
* The key is evicted automatically by the user controller when the user has stopped.
*/
@Override
public void evictCredentialEncryptionKey(@UserIdInt int userId) {
checkManageUsersPermission("evict CE key");
final IActivityManager am = ActivityManagerNative.getDefault();
final long identity = Binder.clearCallingIdentity();
try {
am.restartUserInBackground(userId);
} catch (RemoteException re) {
throw re.rethrowAsRuntimeException();
} finally {
Binder.restoreCallingIdentity(identity);
}
}
/**
* Returns whether the given user (specified by userId) is of the given user type, such as
* {@link UserManager#USER_TYPE_FULL_GUEST}.
*/
@Override
public boolean isUserOfType(@UserIdInt int userId, String userType) {
checkManageUsersPermission("check user type");
return userType != null && userType.equals(getUserTypeNoChecks(userId));
}
/**
* Returns the user type of the given userId, or null if the user doesn't exist.
* <p>No permissions checks are made (but userId checks may be made).
*/
private @Nullable String getUserTypeNoChecks(@UserIdInt int userId) {
synchronized (mUsersLock) {
final UserInfo userInfo = getUserInfoLU(userId);
return userInfo != null ? userInfo.userType : null;
}
}
/**
* Returns the UserTypeDetails of the given userId's user type, or null if the no such user.
* <p>No permissions checks are made (but userId checks may be made).
*/
private @Nullable UserTypeDetails getUserTypeDetailsNoChecks(@UserIdInt int userId) {
final String typeStr = getUserTypeNoChecks(userId);
return typeStr != null ? mUserTypes.get(typeStr) : null;
}
/**
* Returns the UserTypeDetails of the given userInfo's user type (or null for a null userInfo).
*/
private @Nullable UserTypeDetails getUserTypeDetails(@Nullable UserInfo userInfo) {
final String typeStr = userInfo != null ? userInfo.userType : null;
return typeStr != null ? mUserTypes.get(typeStr) : null;
}
@Override
public UserInfo getUserInfo(@UserIdInt int userId) {
checkManageOrCreateUsersPermission("query user");
synchronized (mUsersLock) {
return userWithName(getUserInfoLU(userId));
}
}
/**
* Returns a UserInfo object with the name filled in, for Owner, or the original
* if the name is already set.
*/
private UserInfo userWithName(UserInfo orig) {
if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) {
UserInfo withName = new UserInfo(orig);
withName.name = getOwnerName();
return withName;
} else {
return orig;
}
}
/** Returns whether the given user type is one of the FULL user types. */
boolean isUserTypeSubtypeOfFull(String userType) {
UserTypeDetails userTypeDetails = mUserTypes.get(userType);
return userTypeDetails != null && userTypeDetails.isFull();
}
/** Returns whether the given user type is one of the PROFILE user types. */
boolean isUserTypeSubtypeOfProfile(String userType) {
UserTypeDetails userTypeDetails = mUserTypes.get(userType);
return userTypeDetails != null && userTypeDetails.isProfile();
}
/** Returns whether the given user type is one of the SYSTEM user types. */
boolean isUserTypeSubtypeOfSystem(String userType) {
UserTypeDetails userTypeDetails = mUserTypes.get(userType);
return userTypeDetails != null && userTypeDetails.isSystem();
}
@Override
public boolean hasBadge(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId, "hasBadge");
final UserTypeDetails userTypeDetails = getUserTypeDetailsNoChecks(userId);
return userTypeDetails != null && userTypeDetails.hasBadge();
}
@Override
public @StringRes int getUserBadgeLabelResId(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId,
"getUserBadgeLabelResId");
final UserInfo userInfo = getUserInfoNoChecks(userId);
final UserTypeDetails userTypeDetails = getUserTypeDetails(userInfo);
if (userInfo == null || userTypeDetails == null || !userTypeDetails.hasBadge()) {
Slog.e(LOG_TAG, "Requested badge label for non-badged user " + userId);
return Resources.ID_NULL;
}
final int badgeIndex = userInfo.profileBadge;
return userTypeDetails.getBadgeLabel(badgeIndex);
}
@Override
public @ColorRes int getUserBadgeColorResId(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId,
"getUserBadgeColorResId");
final UserInfo userInfo = getUserInfoNoChecks(userId);
final UserTypeDetails userTypeDetails = getUserTypeDetails(userInfo);
if (userInfo == null || userTypeDetails == null || !userTypeDetails.hasBadge()) {
Slog.e(LOG_TAG, "Requested badge color for non-badged user " + userId);
return Resources.ID_NULL;
}
final int badgeIndex = userInfo.profileBadge;
return userTypeDetails.getBadgeColor(badgeIndex);
}
@Override
public @DrawableRes int getUserIconBadgeResId(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId, "getUserIconBadgeResId");
final UserTypeDetails userTypeDetails = getUserTypeDetailsNoChecks(userId);
if (userTypeDetails == null || !userTypeDetails.hasBadge()) {
Slog.e(LOG_TAG, "Requested icon badge for non-badged user " + userId);
return Resources.ID_NULL;
}
return userTypeDetails.getIconBadge();
}
@Override
public @DrawableRes int getUserBadgeResId(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId, "getUserBadgeResId");
final UserTypeDetails userTypeDetails = getUserTypeDetailsNoChecks(userId);
if (userTypeDetails == null || !userTypeDetails.hasBadge()) {
Slog.e(LOG_TAG, "Requested badge for non-badged user " + userId);
return Resources.ID_NULL;
}
return userTypeDetails.getBadgePlain();
}
@Override
public @DrawableRes int getUserBadgeNoBackgroundResId(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId,
"getUserBadgeNoBackgroundResId");
final UserTypeDetails userTypeDetails = getUserTypeDetailsNoChecks(userId);
if (userTypeDetails == null || !userTypeDetails.hasBadge()) {
Slog.e(LOG_TAG, "Requested badge (no background) for non-badged user " + userId);
return Resources.ID_NULL;
}
return userTypeDetails.getBadgeNoBackground();
}
@Override
public boolean isProfile(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId, "isProfile");
synchronized (mUsersLock) {
UserInfo userInfo = getUserInfoLU(userId);
return userInfo != null && userInfo.isProfile();
}
}
@Override
public boolean isManagedProfile(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId, "isManagedProfile");
synchronized (mUsersLock) {
UserInfo userInfo = getUserInfoLU(userId);
return userInfo != null && userInfo.isManagedProfile();
}
}
@Override
public boolean isUserUnlockingOrUnlocked(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId,
"isUserUnlockingOrUnlocked");
return mLocalService.isUserUnlockingOrUnlocked(userId);
}
@Override
public boolean isUserUnlocked(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId, "isUserUnlocked");
return mLocalService.isUserUnlocked(userId);
}
@Override
public boolean isUserRunning(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId, "isUserRunning");
return mLocalService.isUserRunning(userId);
}
@Override
public String getUserName() {
if (!hasManageUsersOrPermission(android.Manifest.permission.GET_ACCOUNTS_PRIVILEGED)) {
throw new SecurityException("You need MANAGE_USERS or GET_ACCOUNTS_PRIVILEGED "
+ "permissions to: get user name");
}
final int userId = UserHandle.getUserId(Binder.getCallingUid());
synchronized (mUsersLock) {
UserInfo userInfo = userWithName(getUserInfoLU(userId));
return userInfo == null ? "" : userInfo.name;
}
}
@Override
public long getUserStartRealtime() {
final int userId = UserHandle.getUserId(Binder.getCallingUid());
synchronized (mUsersLock) {
final UserData user = getUserDataLU(userId);
if (user != null) {
return user.startRealtime;
}
return 0;
}
}
@Override
public long getUserUnlockRealtime() {
synchronized (mUsersLock) {
final UserData user = getUserDataLU(UserHandle.getUserId(Binder.getCallingUid()));
if (user != null) {
return user.unlockRealtime;
}
return 0;
}
}
private void checkManageOrInteractPermissionIfCallerInOtherProfileGroup(@UserIdInt int userId,
String name) {
final int callingUserId = UserHandle.getCallingUserId();
if (callingUserId == userId || isSameProfileGroupNoChecks(callingUserId, userId) ||
hasManageUsersPermission()) {
return;
}
if (!hasPermissionGranted(Manifest.permission.INTERACT_ACROSS_USERS,
Binder.getCallingUid())) {
throw new SecurityException("You need INTERACT_ACROSS_USERS or MANAGE_USERS permission "
+ "to: check " + name);
}
}
@Override
public boolean isDemoUser(@UserIdInt int userId) {
final int callingUserId = UserHandle.getCallingUserId();
if (callingUserId != userId && !hasManageUsersPermission()) {
throw new SecurityException("You need MANAGE_USERS permission to query if u=" + userId
+ " is a demo user");
}
synchronized (mUsersLock) {
UserInfo userInfo = getUserInfoLU(userId);
return userInfo != null && userInfo.isDemo();
}
}
@Override
public boolean isPreCreated(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId, "isPreCreated");
synchronized (mUsersLock) {
UserInfo userInfo = getUserInfoLU(userId);
return userInfo != null && userInfo.preCreated;
}
}
@Override
public boolean isRestricted() {
synchronized (mUsersLock) {
return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted();
}
}
@Override
public boolean canHaveRestrictedProfile(@UserIdInt 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);
}
}
@Override
public boolean hasRestrictedProfiles() {
checkManageUsersPermission("hasRestrictedProfiles");
final int callingUserId = UserHandle.getCallingUserId();
synchronized (mUsersLock) {
final int userSize = mUsers.size();
for (int i = 0; i < userSize; i++) {
UserInfo profile = mUsers.valueAt(i).info;
if (callingUserId != profile.id
&& profile.restrictedProfileParentId == callingUserId) {
return true;
}
}
return false;
}
}
/*
* Should be locked on mUsers before calling this.
*/
@GuardedBy("mUsersLock")
private UserInfo getUserInfoLU(@UserIdInt 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;
}
@GuardedBy("mUsersLock")
private UserData getUserDataLU(@UserIdInt 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(@UserIdInt 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(@UserIdInt int userId) {
synchronized (mUsersLock) {
return mUsers.get(userId);
}
}
/** Called by PackageManagerService */
public boolean exists(@UserIdInt int userId) {
return mLocalService.exists(userId);
}
@Override
public void setUserName(@UserIdInt 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) {
long ident = Binder.clearCallingIdentity();
try {
sendUserInfoChangedBroadcast(userId);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
}
@Override
public void setUserIcon(@UserIdInt int userId, Bitmap bitmap) {
try {
checkManageUsersPermission("update users");
enforceUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId,
"Cannot set user icon");
mLocalService.setUserIcon(userId, bitmap);
} catch (UserManager.CheckedUserOperationException e) {
throw e.toServiceSpecificException();
}
}
private void sendUserInfoChangedBroadcast(@UserIdInt 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) {
if (!hasManageUsersOrPermission(android.Manifest.permission.GET_ACCOUNTS_PRIVILEGED)) {
throw new SecurityException("You need MANAGE_USERS or GET_ACCOUNTS_PRIVILEGED "
+ "permissions to: get user icon");
}
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) {
Slog.e(LOG_TAG, "Couldn't find icon file", e);
}
return null;
}
public void makeInitialized(@UserIdInt 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()) {
UserTypeDetails guestType = mUserTypes.get(UserManager.USER_TYPE_FULL_GUEST);
if (guestType == null) {
Slog.wtf(LOG_TAG, "Can't set default guest restrictions: type doesn't exist.");
return;
}
guestType.addDefaultRestrictionsTo(mGuestRestrictions);
}
}
}
@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}
*/
private void setDevicePolicyUserRestrictionsInner(@UserIdInt int originatingUserId,
@NonNull Bundle global, @NonNull RestrictionsSet local,
boolean isDeviceOwner) {
boolean globalChanged, localChanged;
List<Integer> updatedLocalTargetUserIds;
synchronized (mRestrictionsLock) {
// Update global and local restrictions if they were changed.
globalChanged = mDevicePolicyGlobalUserRestrictions
.updateRestrictions(originatingUserId, global);
updatedLocalTargetUserIds = getUpdatedTargetUserIdsFromLocalRestrictions(
originatingUserId, local);
localChanged = updateLocalRestrictionsForTargetUsersLR(originatingUserId, local,
updatedLocalTargetUserIds);
if (isDeviceOwner) {
// Remember the global restriction owner userId to be able to make a distinction
// in getUserRestrictionSource on who set local policies.
mDeviceOwnerUserId = originatingUserId;
} else {
if (mDeviceOwnerUserId == originatingUserId) {
// When profile owner sets restrictions it passes null global bundle and we
// reset global restriction owner userId.
// This means this user used to have DO, but now the DO is gone and the user
// instead has PO.
mDeviceOwnerUserId = UserHandle.USER_NULL;
}
}
}
if (DBG) {
Slog.d(LOG_TAG, "setDevicePolicyUserRestrictions: "
+ " originatingUserId=" + originatingUserId
+ " global=" + global + (globalChanged ? " (changed)" : "")
+ " local=" + local + (localChanged ? " (changed)" : "")
);
}
// Don't call them within the mRestrictionsLock.
synchronized (mPackagesLock) {
if (globalChanged || localChanged) {
if (updatedLocalTargetUserIds.size() == 1
&& updatedLocalTargetUserIds.contains(originatingUserId)) {
writeUserLP(getUserDataNoChecks(originatingUserId));
} else {
if (globalChanged) {
writeUserLP(getUserDataNoChecks(originatingUserId));
}
if (localChanged) {
for (int targetUserId : updatedLocalTargetUserIds) {
writeAllTargetUsersLP(targetUserId);
}
}
}
}
}
synchronized (mRestrictionsLock) {
if (globalChanged) {
applyUserRestrictionsForAllUsersLR();
} else if (localChanged) {
for (int targetUserId : updatedLocalTargetUserIds) {
applyUserRestrictionsLR(targetUserId);
}
}
}
}
/**
* @return the list of updated target user ids in device policy local restrictions for a
* given originating user id.
*/
private List<Integer> getUpdatedTargetUserIdsFromLocalRestrictions(int originatingUserId,
@NonNull RestrictionsSet local) {
List<Integer> targetUserIds = new ArrayList<>();
// Update all the target user ids from the local restrictions set
for (int i = 0; i < local.size(); i++) {
targetUserIds.add(local.keyAt(i));
}
// Update the target user id from device policy local restrictions if the local
// restrictions set does not contain the target user id.
for (int i = 0; i < mDevicePolicyLocalUserRestrictions.size(); i++) {
int targetUserId = mDevicePolicyLocalUserRestrictions.keyAt(i);
RestrictionsSet restrictionsSet = mDevicePolicyLocalUserRestrictions.valueAt(i);
if (!local.containsKey(targetUserId)
&& restrictionsSet.containsKey(originatingUserId)) {
targetUserIds.add(targetUserId);
}
}
return targetUserIds;
}
/**
* Update restrictions for all target users in the restriction set. If a target user does not
* exist in device policy local restrictions, remove the restrictions bundle for that target
* user originating from the specified originating user.
*/
private boolean updateLocalRestrictionsForTargetUsersLR(int originatingUserId,
RestrictionsSet local, List<Integer> updatedTargetUserIds) {
boolean changed = false;
for (int targetUserId : updatedTargetUserIds) {
Bundle restrictions = local.getRestrictions(targetUserId);
if (restrictions == null) {
restrictions = new Bundle();
}
if (getDevicePolicyLocalRestrictionsForTargetUserLR(targetUserId)
.updateRestrictions(originatingUserId, restrictions)) {
changed = true;
}
}
return changed;
}
/**
* A new restriction set is created if a restriction set does not already exist for a given
* target user.
*
* @return restrictions set for a given target user.
*/
private @NonNull RestrictionsSet getDevicePolicyLocalRestrictionsForTargetUserLR(
int targetUserId) {
RestrictionsSet result = mDevicePolicyLocalUserRestrictions.get(targetUserId);
if (result == null) {
result = new RestrictionsSet();
mDevicePolicyLocalUserRestrictions.put(targetUserId, result);
}
return result;
}
@GuardedBy("mRestrictionsLock")
private Bundle computeEffectiveUserRestrictionsLR(@UserIdInt int userId) {
final Bundle baseRestrictions =
UserRestrictionsUtils.nonNull(mBaseUserRestrictions.getRestrictions(userId));
final Bundle global = mDevicePolicyGlobalUserRestrictions.mergeAll();
final RestrictionsSet local = getDevicePolicyLocalRestrictionsForTargetUserLR(userId);
if (UserRestrictionsUtils.isEmpty(global) && local.isEmpty()) {
// Common case first.
return baseRestrictions;
}
final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions);
UserRestrictionsUtils.merge(effective, global);
UserRestrictionsUtils.merge(effective, local.mergeAll());
return effective;
}
@GuardedBy("mRestrictionsLock")
private void invalidateEffectiveUserRestrictionsLR(@UserIdInt int userId) {
if (DBG) {
Slog.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId);
}
mCachedEffectiveUserRestrictions.remove(userId);
}
private Bundle getEffectiveUserRestrictions(@UserIdInt int userId) {
synchronized (mRestrictionsLock) {
Bundle restrictions = mCachedEffectiveUserRestrictions.getRestrictions(userId);
if (restrictions == null) {
restrictions = computeEffectiveUserRestrictionsLR(userId);
mCachedEffectiveUserRestrictions.updateRestrictions(userId, restrictions);
}
return restrictions;
}
}
/** @return a specific user restriction that's in effect currently. */
@Override
public boolean hasUserRestriction(String restrictionKey, @UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId, "hasUserRestriction");
return mLocalService.hasUserRestriction(restrictionKey, userId);
}
/** @return if any user has the given restriction. */
@Override
public boolean hasUserRestrictionOnAnyUser(String restrictionKey) {
if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) {
return false;
}
final List<UserInfo> users = getUsers(/* excludeDying= */ true);
for (int i = 0; i < users.size(); i++) {
final int userId = users.get(i).id;
Bundle restrictions = getEffectiveUserRestrictions(userId);
if (restrictions != null && restrictions.getBoolean(restrictionKey)) {
return true;
}
}
return false;
}
@Override
public boolean isSettingRestrictedForUser(String setting, @UserIdInt int userId,
String value, int callingUid) {
if (Binder.getCallingUid() != Process.SYSTEM_UID) {
throw new SecurityException("Non-system caller");
}
return UserRestrictionsUtils.isSettingRestrictedForUser(mContext, setting, userId,
value, callingUid);
}
@Override
public void addUserRestrictionsListener(final IUserRestrictionsListener listener) {
if (Binder.getCallingUid() != Process.SYSTEM_UID) {
throw new SecurityException("Non-system caller");
}
// NOTE: unregistering not supported; only client is the settings provider,
// which installs a single static permanent listener. If that listener goes
// bad it implies the whole system process is going to crash.
mLocalService.addUserRestrictionsListener(
(int userId, Bundle newRestrict, Bundle prevRestrict) -> {
try {
listener.onUserRestrictionsChanged(userId, newRestrict, prevRestrict);
} catch (RemoteException re) {
Slog.e("IUserRestrictionsListener",
"Unable to invoke listener: " + re.getMessage());
}
});
}
/**
* @hide
*
* Returns who set a user restriction on a user.
* Requires {@link android.Manifest.permission#MANAGE_USERS} permission.
* @param restrictionKey the string key representing the restriction
* @param userId the id of the user for whom to retrieve the restrictions.
* @return The source of user restriction. Any combination of
* {@link UserManager#RESTRICTION_NOT_SET},
* {@link UserManager#RESTRICTION_SOURCE_SYSTEM},
* {@link UserManager#RESTRICTION_SOURCE_DEVICE_OWNER}
* and {@link UserManager#RESTRICTION_SOURCE_PROFILE_OWNER}
*/
@Override
public int getUserRestrictionSource(String restrictionKey, @UserIdInt int userId) {
List<EnforcingUser> enforcingUsers = getUserRestrictionSources(restrictionKey, userId);
// Get "bitwise or" of restriction sources for all enforcing users.
int result = UserManager.RESTRICTION_NOT_SET;
for (int i = enforcingUsers.size() - 1; i >= 0; i--) {
result |= enforcingUsers.get(i).getUserRestrictionSource();
}
return result;
}
@Override
public List<EnforcingUser> getUserRestrictionSources(
String restrictionKey, @UserIdInt int userId) {
checkManageUsersPermission("getUserRestrictionSource");
// Shortcut for the most common case
if (!hasUserRestriction(restrictionKey, userId)) {
return Collections.emptyList();
}
final List<EnforcingUser> result = new ArrayList<>();
// Check if it is base restriction.
if (hasBaseUserRestriction(restrictionKey, userId)) {
result.add(new EnforcingUser(
UserHandle.USER_NULL, UserManager.RESTRICTION_SOURCE_SYSTEM));
}
synchronized (mRestrictionsLock) {
// Check if it is set as a local restriction.
result.addAll(getDevicePolicyLocalRestrictionsForTargetUserLR(userId).getEnforcingUsers(
restrictionKey, mDeviceOwnerUserId));
// Check if it is set as a global restriction.
result.addAll(mDevicePolicyGlobalUserRestrictions.getEnforcingUsers(restrictionKey,
mDeviceOwnerUserId));
}
return result;
}
/**
* @return UserRestrictions that are in effect currently. This always returns a new
* {@link Bundle}.
*/
@Override
public Bundle getUserRestrictions(@UserIdInt int userId) {
checkManageOrInteractPermissionIfCallerInOtherProfileGroup(userId, "getUserRestrictions");
return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId));
}
@Override
public boolean hasBaseUserRestriction(String restrictionKey, @UserIdInt int userId) {
checkManageOrCreateUsersPermission("hasBaseUserRestriction");
if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) {
return false;
}
synchronized (mRestrictionsLock) {
Bundle bundle = mBaseUserRestrictions.getRestrictions(userId);
return (bundle != null && bundle.getBoolean(restrictionKey, false));
}
}
@Override
public void setUserRestriction(String key, boolean value, @UserIdInt 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.getRestrictions(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 newBaseRestrictions 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 newBaseRestrictions, @UserIdInt int userId) {
final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull(
mAppliedUserRestrictions.getRestrictions(userId));
// Update base restrictions.
if (newBaseRestrictions != null) {
// If newBaseRestrictions == the current one, it's probably a bug.
final Bundle prevBaseRestrictions = mBaseUserRestrictions.getRestrictions(userId);
Preconditions.checkState(prevBaseRestrictions != newBaseRestrictions);
Preconditions.checkState(mCachedEffectiveUserRestrictions.getRestrictions(userId)
!= newBaseRestrictions);
if (mBaseUserRestrictions.updateRestrictions(userId, newBaseRestrictions)) {
scheduleWriteUser(getUserDataNoChecks(userId));
}
}
final Bundle effective = computeEffectiveUserRestrictionsLR(userId);
mCachedEffectiveUserRestrictions.updateRestrictions(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.
mHandler.post(new Runnable() {
@Override
public void run() {
try {
mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId);
} catch (RemoteException e) {
Slog.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions");
}
}
});
}
propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions);
mAppliedUserRestrictions.updateRestrictions(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);
}
final Intent broadcast = new Intent(UserManager.ACTION_USER_RESTRICTIONS_CHANGED)
.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
mContext.sendBroadcastAsUser(broadcast, UserHandle.of(userId));
}
});
}
// Package private for the inner class.
@GuardedBy("mRestrictionsLock")
void applyUserRestrictionsLR(@UserIdInt 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.removeAllRestrictions();
// We don't want to call into ActivityManagerService 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 = ActivityManager.getService().getRunningUserIds();
} catch (RemoteException e) {
Slog.w(LOG_TAG, "Unable to access ActivityManagerService");
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();
}
/**
* Returns whether more users of the given type can be added (based on how many users of that
* type already exist).
*
* <p>For checking whether more profiles can be added to a particular parent use
* {@link #canAddMoreProfilesToUser}.
*/
private boolean canAddMoreUsersOfType(UserTypeDetails userTypeDetails) {
final int max = userTypeDetails.getMaxAllowed();
if (max == UserTypeDetails.UNLIMITED_NUMBER_OF_USERS) {
return true; // Indicates that there is no max.
}
return getNumberOfUsersOfType(userTypeDetails.getName()) < max;
}
/**
* Gets the number of users of the given user type.
* Does not include users that are about to die.
*/
private int getNumberOfUsersOfType(String userType) {
int count = 0;
synchronized (mUsersLock) {
final int size = mUsers.size();
for (int i = 0; i < size; i++) {
final UserInfo user = mUsers.valueAt(i).info;
if (user.userType.equals(userType)
&& !user.guestToRemove
&& !mRemovingUserIds.get(user.id)
&& !user.preCreated) {
count++;
}
}
}
return count;
}
@Override
public boolean canAddMoreManagedProfiles(@UserIdInt int userId, boolean allowedToRemoveOne) {
return canAddMoreProfilesToUser(UserManager.USER_TYPE_PROFILE_MANAGED, userId,
allowedToRemoveOne);
}
/** Returns whether more profiles of the given type can be added to the given parent userId. */
@Override
public boolean canAddMoreProfilesToUser(String userType, @UserIdInt int userId,
boolean allowedToRemoveOne) {
checkManageUsersPermission("check if more profiles can be added.");
final UserTypeDetails type = mUserTypes.get(userType);
if (type == null) {
return false;
}
// Managed profiles have their own specific rules.
final boolean isManagedProfile = type.isManagedProfile();
if (isManagedProfile) {
if (ActivityManager.isLowRamDeviceStatic()) {
return false;
}
if (!mContext.getPackageManager().hasSystemFeature(
PackageManager.FEATURE_MANAGED_USERS)) {
return false;
}
}
synchronized (mUsersLock) {
// Check if the parent exists and its type is even allowed to have a profile.
UserInfo userInfo = getUserInfoLU(userId);
if (userInfo == null || !userInfo.canHaveProfile()) {
return false;
}
// Limit the number of profiles that can be created
final int maxUsersOfType = getMaxUsersOfTypePerParent(type);
if (maxUsersOfType != UserTypeDetails.UNLIMITED_NUMBER_OF_USERS) {
final int userTypeCount = getProfileIds(userId, userType, false).length;
final int profilesRemovedCount = userTypeCount > 0 && allowedToRemoveOne ? 1 : 0;
if (userTypeCount - profilesRemovedCount >= maxUsersOfType) {
return false;
}
// Allow creating a managed profile in the special case where there is only one user
if (isManagedProfile) {
int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU()
- profilesRemovedCount;
return usersCountAfterRemoving == 1
|| usersCountAfterRemoving < UserManager.getMaxSupportedUsers();
}
}
}
return true;
}
@GuardedBy("mUsersLock")
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.preCreated) {
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) {
// System UID or root's UID are granted privilege.
return;
}
if (hasPermissionGranted(Manifest.permission.MANAGE_USERS, uid)
&& hasPermissionGranted(Manifest.permission.INTERACT_ACROSS_USERS_FULL, uid)) {
// Apps with both permissions are granted privilege.
return;
}
throw new SecurityException(
"You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " + message);
}
private static boolean hasPermissionGranted(String permission, int uid) {
return ActivityManager.checkComponentPermission(
permission, uid, /* owningUid = */-1, /* exported = */ true) ==
PackageManager.PERMISSION_GRANTED;
}
/**
* 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);
}
}
/**
* Enforces that only the system UID or root's UID or apps that have the
* {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or
* {@link android.Manifest.permission#CREATE_USERS CREATE_USERS}
* 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 #hasManageOrCreateUsersPermission()
*/
private static final void checkManageOrCreateUsersPermission(String message) {
if (!hasManageOrCreateUsersPermission()) {
throw new SecurityException(
"You either need MANAGE_USERS or CREATE_USERS permission to: " + message);
}
}
/**
* Similar to {@link #checkManageOrCreateUsersPermission(String)} but when the caller is tries
* to create user/profiles other than what is allowed for
* {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} permission, then it will only
* allow callers with {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} permission.
*/
private static final void checkManageOrCreateUsersPermission(int creationFlags) {
if ((creationFlags & ~ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION) == 0) {
if (!hasManageOrCreateUsersPermission()) {
throw new SecurityException("You either need MANAGE_USERS or CREATE_USERS "
+ "permission to create an user with flags: " + creationFlags);
}
} else if (!hasManageUsersPermission()) {
throw new SecurityException("You need MANAGE_USERS permission to create an user "
+ " with flags: " + creationFlags);
}
}
/**
* @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
|| hasPermissionGranted(android.Manifest.permission.MANAGE_USERS, callingUid);
}
/**
* @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} or the provided permission.
*/
private static final boolean hasManageUsersOrPermission(String alternativePermission) {
final int callingUid = Binder.getCallingUid();
return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID)
|| callingUid == Process.ROOT_UID
|| hasPermissionGranted(android.Manifest.permission.MANAGE_USERS, callingUid)
|| hasPermissionGranted(alternativePermission, callingUid);
}
/**
* @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} or
* {@link android.Manifest.permission#CREATE_USERS CREATE_USERS}.
*/
private static final boolean hasManageOrCreateUsersPermission() {
return hasManageUsersOrPermission(android.Manifest.permission.CREATE_USERS);
}
/**
* 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;
}
}
@GuardedBy({"mRestrictionsLock", "mPackagesLock"})
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);
}
}
// Pre-O global user restriction were stored as a single bundle (as opposed to per-user
// currently), take care of it in case of upgrade.
Bundle oldDevicePolicyGlobalUserRestrictions = null;
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);
}
}
break;
}
}
} else if (name.equals(TAG_DEVICE_OWNER_USER_ID)
// Legacy name, should only be encountered when upgrading from pre-O.
|| name.equals(TAG_GLOBAL_RESTRICTION_OWNER_ID)) {
String ownerUserId = parser.getAttributeValue(null, ATTR_ID);
if (ownerUserId != null) {
mDeviceOwnerUserId = Integer.parseInt(ownerUserId);
}
} else if (name.equals(TAG_DEVICE_POLICY_RESTRICTIONS)) {
// Should only happen when upgrading from pre-O (version < 7).
oldDevicePolicyGlobalUserRestrictions =
UserRestrictionsUtils.readRestrictions(parser);
}
}
}
updateUserIds();
upgradeIfNecessaryLP(oldDevicePolicyGlobalUserRestrictions);
} catch (IOException | XmlPullParserException e) {
fallbackToSingleUserLP();
} finally {
IoUtils.closeQuietly(fis);
}
}
/**
* Upgrade steps between versions, either for fixing bugs or changing the data format.
* @param oldGlobalUserRestrictions Pre-O global device policy restrictions.
*/
@GuardedBy({"mRestrictionsLock", "mPackagesLock"})
private void upgradeIfNecessaryLP(Bundle oldGlobalUserRestrictions) {
upgradeIfNecessaryLP(oldGlobalUserRestrictions, mUserVersion);
}
/**
* Version of {@link #upgradeIfNecessaryLP(Bundle)} that takes in the userVersion for testing
* purposes. For non-tests, use {@link #upgradeIfNecessaryLP(Bundle)}.
*/
@GuardedBy({"mRestrictionsLock", "mPackagesLock"})
@VisibleForTesting
void upgradeIfNecessaryLP(Bundle oldGlobalUserRestrictions, int userVersion) {
Set<Integer> userIdsToWrite = new ArraySet<>();
final int originalVersion = 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);
userIdsToWrite.add(userData.info.id);
}
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;
userIdsToWrite.add(userData.info.id);
}
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;
userIdsToWrite.add(userData.info.id);
}
}
}
userVersion = 6;
}
if (userVersion < 7) {
// Previously only one user could enforce global restrictions, now it is per-user.
synchronized (mRestrictionsLock) {
if (!UserRestrictionsUtils.isEmpty(oldGlobalUserRestrictions)
&& mDeviceOwnerUserId != UserHandle.USER_NULL) {
mDevicePolicyGlobalUserRestrictions.updateRestrictions(
mDeviceOwnerUserId, oldGlobalUserRestrictions);
}
// ENSURE_VERIFY_APPS is now enforced globally even if put by profile owner, so move
// it from local to global bundle for all users who set it.
UserRestrictionsUtils.moveRestriction(UserManager.ENSURE_VERIFY_APPS,
mDevicePolicyLocalUserRestrictions, mDevicePolicyGlobalUserRestrictions
);
}
// DISALLOW_CONFIG_WIFI was made a default guest restriction some time during version 6.
final UserInfo currentGuestUser = findCurrentGuestUser();
if (currentGuestUser != null && !hasUserRestriction(
UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) {
setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id);
}
userVersion = 7;
}
if (userVersion < 8) {
// Added FLAG_FULL and FLAG_SYSTEM flags.
synchronized (mUsersLock) {
UserData userData = mUsers.get(UserHandle.USER_SYSTEM);
userData.info.flags |= UserInfo.FLAG_SYSTEM;
if (!UserManager.isHeadlessSystemUserMode()) {
userData.info.flags |= UserInfo.FLAG_FULL;
}
userIdsToWrite.add(userData.info.id);
// Mark FULL all non-profile users except USER_SYSTEM.
// Start index at 1 since USER_SYSTEM is the smallest userId and we're skipping it.
for (int i = 1; i < mUsers.size(); i++) {
userData = mUsers.valueAt(i);
if ((userData.info.flags & UserInfo.FLAG_MANAGED_PROFILE) == 0) {
userData.info.flags |= UserInfo.FLAG_FULL;
userIdsToWrite.add(userData.info.id);
}
}
}
userVersion = 8;
}
if (userVersion < 9) {
// Convert from UserInfo flags to UserTypes. Apply FLAG_PROFILE to FLAG_MANAGED_PROFILE.
synchronized (mUsersLock) {
for (int i = 0; i < mUsers.size(); i++) {
UserData userData = mUsers.valueAt(i);
final int flags = userData.info.flags;
if ((flags & UserInfo.FLAG_SYSTEM) != 0) {
if ((flags & UserInfo.FLAG_FULL) != 0) {
userData.info.userType = UserManager.USER_TYPE_FULL_SYSTEM;
} else {
userData.info.userType = UserManager.USER_TYPE_SYSTEM_HEADLESS;
}
} else {
try {
userData.info.userType = UserInfo.getDefaultUserType(flags);
} catch (IllegalArgumentException e) {
// TODO(b/142482943): What should we do here? Delete user? Crashloop?
throw new IllegalStateException("Cannot upgrade user with flags "
+ Integer.toHexString(flags) + " because it doesn't correspond "
+ "to a valid user type.", e);
}
}
// OEMs are responsible for their own custom upgrade logic here.
final UserTypeDetails userTypeDetails = mUserTypes.get(userData.info.userType);
if (userTypeDetails == null) {
throw new IllegalStateException(
"Cannot upgrade user with flags " + Integer.toHexString(flags)
+ " because " + userData.info.userType + " isn't defined"
+ " on this device!");
}
userData.info.flags |= userTypeDetails.getDefaultUserInfoFlags();
userIdsToWrite.add(userData.info.id);
}
}
userVersion = 9;
}
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) {
for (int userId : userIdsToWrite) {
UserData userData = getUserDataNoChecks(userId);
if (userData != null) {
writeUserLP(userData);
}
}
writeUserListLP();
}
}
}
@GuardedBy({"mPackagesLock", "mRestrictionsLock"})
private void fallbackToSingleUserLP() {
int flags = UserInfo.FLAG_SYSTEM | UserInfo.FLAG_INITIALIZED | UserInfo.FLAG_ADMIN
| UserInfo.FLAG_PRIMARY;
// Create the system user
String systemUserType = UserManager.isHeadlessSystemUserMode() ?
UserManager.USER_TYPE_SYSTEM_HEADLESS : UserManager.USER_TYPE_FULL_SYSTEM;
flags |= mUserTypes.get(systemUserType).getDefaultUserInfoFlags();
UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags, systemUserType);
UserData userData = putUserInfo(system);
mNextSerialNumber = MIN_USER_ID;
mUserVersion = USER_VERSION;
Bundle restrictions = new Bundle();
try {
final String[] defaultFirstUserRestrictions = mContext.getResources().getStringArray(
com.android.internal.R.array.config_defaultFirstUserRestrictions);
for (String userRestriction : defaultFirstUserRestrictions) {
if (UserRestrictionsUtils.isValidRestriction(userRestriction)) {
restrictions.putBoolean(userRestriction, true);
}
}
} catch (Resources.NotFoundException e) {
Slog.e(LOG_TAG, "Couldn't find resource: config_defaultFirstUserRestrictions", e);
}
if (!restrictions.isEmpty()) {
synchronized (mRestrictionsLock) {
mBaseUserRestrictions.updateRestrictions(UserHandle.USER_SYSTEM,
restrictions);
}
}
updateUserIds();
initDefaultGuestRestrictions();
writeUserLP(userData);
writeUserListLP();
}
private String getOwnerName() {
return mContext.getResources().getString(com.android.internal.R.string.owner_name);
}
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);
}
}
private void writeAllTargetUsersLP(int originatingUserId) {
for (int i = 0; i < mDevicePolicyLocalUserRestrictions.size(); i++) {
int targetUserId = mDevicePolicyLocalUserRestrictions.keyAt(i);
RestrictionsSet restrictionsSet = mDevicePolicyLocalUserRestrictions.valueAt(i);
if (restrictionsSet.containsKey(originatingUserId)) {
writeUserLP(getUserDataNoChecks(targetUserId));
}
}
}
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);
writeUserLP(userData, bos);
userFile.finishWrite(fos);
} catch (Exception ioe) {
Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe);
userFile.failWrite(fos);
}
}
/*
* Writes the user file in this format:
*
* <user flags="20039023" id="0">
* <name>Primary</name>
* </user>
*/
@VisibleForTesting
void writeUserLP(UserData userData, OutputStream os)
throws IOException, XmlPullParserException {
// XmlSerializer serializer = XmlUtils.serializerInstance();
final XmlSerializer serializer = new FastXmlSerializer();
serializer.setOutput(os, 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_TYPE, userInfo.userType);
serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime));
serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME,
Long.toString(userInfo.lastLoggedInTime));
if (userInfo.lastLoggedInFingerprint != null) {
serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT,
userInfo.lastLoggedInFingerprint);
}
if (userInfo.iconPath != null) {
serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath);
}
if (userInfo.partial) {
serializer.attribute(null, ATTR_PARTIAL, "true");
}
if (userInfo.preCreated) {
serializer.attribute(null, ATTR_PRE_CREATED, "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));
}
serializer.attribute(null, ATTR_PROFILE_BADGE,
Integer.toString(userInfo.profileBadge));
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);
}
}
if (userInfo.name != null) {
serializer.startTag(null, TAG_NAME);
serializer.text(userInfo.name);
serializer.endTag(null, TAG_NAME);
}
synchronized (mRestrictionsLock) {
UserRestrictionsUtils.writeRestrictions(serializer,
mBaseUserRestrictions.getRestrictions(userInfo.id), TAG_RESTRICTIONS);
getDevicePolicyLocalRestrictionsForTargetUserLR(userInfo.id).writeRestrictions(
serializer, TAG_DEVICE_POLICY_LOCAL_RESTRICTIONS);
UserRestrictionsUtils.writeRestrictions(serializer,
mDevicePolicyGlobalUserRestrictions.getRestrictions(userInfo.id),
TAG_DEVICE_POLICY_GLOBAL_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);
}
if (userData.getLastRequestQuietModeEnabledMillis() != 0L) {
serializer.startTag(/* namespace */ null, TAG_LAST_REQUEST_QUIET_MODE_ENABLED_CALL);
serializer.text(String.valueOf(userData.getLastRequestQuietModeEnabledMillis()));
serializer.endTag(/* namespace */ null, TAG_LAST_REQUEST_QUIET_MODE_ENABLED_CALL);
}
serializer.endTag(null, TAG_USER);
serializer.endDocument();
}
/*
* Writes the user list file in this format:
*
* <users nextSerialNumber="3">
* <user id="0"></user>
* <user id="2"></user>
* </users>
*/
@GuardedBy({"mRestrictionsLock", "mPackagesLock"})
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);
serializer.startTag(null, TAG_DEVICE_OWNER_USER_ID);
serializer.attribute(null, ATTR_ID, Integer.toString(mDeviceOwnerUserId));
serializer.endTag(null, TAG_DEVICE_OWNER_USER_ID);
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) {
FileInputStream fis = null;
try {
AtomicFile userFile =
new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX));
fis = userFile.openRead();
return readUserLP(id, fis);
} catch (IOException ioe) {
Slog.e(LOG_TAG, "Error reading user list");
} catch (XmlPullParserException pe) {
Slog.e(LOG_TAG, "Error reading user list");
} finally {
IoUtils.closeQuietly(fis);
}
return null;
}
@VisibleForTesting
UserData readUserLP(int id, InputStream is) throws IOException,
XmlPullParserException {
int flags = 0;
String userType = null;
int serialNumber = id;
String name = null;
String account = null;
String iconPath = null;
long creationTime = 0L;
long lastLoggedInTime = 0L;
long lastRequestQuietModeEnabledTimestamp = 0L;
String lastLoggedInFingerprint = null;
int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID;
int profileBadge = 0;
int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID;
boolean partial = false;
boolean preCreated = false;
boolean guestToRemove = false;
boolean persistSeedData = false;
String seedAccountName = null;
String seedAccountType = null;
PersistableBundle seedAccountOptions = null;
Bundle baseRestrictions = null;
Bundle legacyLocalRestrictions = null;
RestrictionsSet localRestrictions = null;
Bundle globalRestrictions = null;
XmlPullParser parser = Xml.newPullParser();
parser.setInput(is, 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);
userType = parser.getAttributeValue(null, ATTR_TYPE);
userType = userType != null ? userType.intern() : null;
iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH);
creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0);
lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0);
lastLoggedInFingerprint = parser.getAttributeValue(null,
ATTR_LAST_LOGGED_IN_FINGERPRINT);
profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID,
UserInfo.NO_PROFILE_GROUP_ID);
profileBadge = readIntAttribute(parser, ATTR_PROFILE_BADGE, 0);
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_PRE_CREATED);
if ("true".equals(valueString)) {
preCreated = 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)) {
baseRestrictions = UserRestrictionsUtils.readRestrictions(parser);
} else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) {
legacyLocalRestrictions = UserRestrictionsUtils.readRestrictions(parser);
} else if (TAG_DEVICE_POLICY_LOCAL_RESTRICTIONS.equals(tag)) {
localRestrictions = RestrictionsSet.readRestrictions(parser,
TAG_DEVICE_POLICY_LOCAL_RESTRICTIONS);
} else if (TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS.equals(tag)) {
globalRestrictions = UserRestrictionsUtils.readRestrictions(parser);
} 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;
} else if (TAG_LAST_REQUEST_QUIET_MODE_ENABLED_CALL.equals(tag)) {
type = parser.next();
if (type == XmlPullParser.TEXT) {
lastRequestQuietModeEnabledTimestamp = Long.parseLong(parser.getText());
}
}
}
}
// Create the UserInfo object that gets passed around
UserInfo userInfo = new UserInfo(id, name, iconPath, flags, userType);
userInfo.serialNumber = serialNumber;
userInfo.creationTime = creationTime;
userInfo.lastLoggedInTime = lastLoggedInTime;
userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint;
userInfo.partial = partial;
userInfo.preCreated = preCreated;
userInfo.guestToRemove = guestToRemove;
userInfo.profileGroupId = profileGroupId;
userInfo.profileBadge = profileBadge;
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;
userData.setLastRequestQuietModeEnabledMillis(lastRequestQuietModeEnabledTimestamp);
synchronized (mRestrictionsLock) {
if (baseRestrictions != null) {
mBaseUserRestrictions.updateRestrictions(id, baseRestrictions);
}
if (localRestrictions != null) {
mDevicePolicyLocalUserRestrictions.put(id, localRestrictions);
if (legacyLocalRestrictions != null) {
Slog.wtf(LOG_TAG, "Seeing both legacy and current local restrictions in xml");
}
} else if (legacyLocalRestrictions != null) {
mDevicePolicyLocalUserRestrictions.put(id,
new RestrictionsSet(id, legacyLocalRestrictions));
}
if (globalRestrictions != null) {
mDevicePolicyGlobalUserRestrictions.updateRestrictions(id,
globalRestrictions);
}
}
return userData;
}
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.
*
* @return whether there were any restrictions.
*/
private static boolean cleanAppRestrictionsForPackageLAr(String pkg, @UserIdInt int userId) {
final File dir = Environment.getUserSystemDirectory(userId);
final File resFile = new File(dir, packageToRestrictionsFileName(pkg));
if (resFile.exists()) {
resFile.delete();
return true;
}
return false;
}
/**
* Creates a profile user. Used for actual profiles, like
* {@link UserManager#USER_TYPE_PROFILE_MANAGED},
* as well as for {@link UserManager#USER_TYPE_FULL_RESTRICTED}.
*/
@Override
public UserInfo createProfileForUserWithThrow(String name, @NonNull String userType,
@UserInfoFlag int flags, @UserIdInt int userId, @Nullable String[] disallowedPackages)
throws ServiceSpecificException {
checkManageOrCreateUsersPermission(flags);
try {
return createUserInternal(name, userType, flags, userId, disallowedPackages);
} catch (UserManager.CheckedUserOperationException e) {
throw e.toServiceSpecificException();
}
}
/**
* @see #createProfileForUser
*/
@Override
public UserInfo createProfileForUserEvenWhenDisallowedWithThrow(String name,
@NonNull String userType,
@UserInfoFlag int flags, @UserIdInt int userId, @Nullable String[] disallowedPackages)
throws ServiceSpecificException {
checkManageOrCreateUsersPermission(flags);
try {
return createUserInternalUnchecked(name, userType, flags, userId,
/* preCreate= */ false, disallowedPackages);
} catch (UserManager.CheckedUserOperationException e) {
throw e.toServiceSpecificException();
}
}
@Override
public UserInfo createUserWithThrow(String name, @NonNull String userType,
@UserInfoFlag int flags)
throws ServiceSpecificException {
checkManageOrCreateUsersPermission(flags);
try {
return createUserInternal(name, userType, flags, UserHandle.USER_NULL,
/* disallowedPackages= */ null);
} catch (UserManager.CheckedUserOperationException e) {
throw e.toServiceSpecificException();
}
}
@Override
public UserInfo preCreateUserWithThrow(String userType) throws ServiceSpecificException {
final UserTypeDetails userTypeDetails = mUserTypes.get(userType);
final int flags = userTypeDetails != null ? userTypeDetails.getDefaultUserInfoFlags() : 0;
checkManageOrCreateUsersPermission(flags);
Preconditions.checkArgument(isUserTypeEligibleForPreCreation(userTypeDetails),
"cannot pre-create user of type " + userType);
Slog.i(LOG_TAG, "Pre-creating user of type " + userType);
try {
return createUserInternalUnchecked(/* name= */ null, userType, flags,
/* parentId= */ UserHandle.USER_NULL, /* preCreate= */ true,
/* disallowedPackages= */ null);
} catch (UserManager.CheckedUserOperationException e) {
throw e.toServiceSpecificException();
}
}
private UserInfo createUserInternal(@Nullable String name, @NonNull String userType,
@UserInfoFlag int flags, @UserIdInt int parentId,
@Nullable String[] disallowedPackages)
throws UserManager.CheckedUserOperationException {
String restriction = (UserManager.isUserTypeManagedProfile(userType))
? UserManager.DISALLOW_ADD_MANAGED_PROFILE
: UserManager.DISALLOW_ADD_USER;
enforceUserRestriction(restriction, UserHandle.getCallingUserId(),
"Cannot add user");
return createUserInternalUnchecked(name, userType, flags, parentId,
/* preCreate= */ false, disallowedPackages);
}
private UserInfo createUserInternalUnchecked(@Nullable String name,
@NonNull String userType, @UserInfoFlag int flags, @UserIdInt int parentId,
boolean preCreate, @Nullable String[] disallowedPackages)
throws UserManager.CheckedUserOperationException {
final int nextProbableUserId = getNextAvailableId();
final TimingsTraceAndSlog t = new TimingsTraceAndSlog();
t.traceBegin("createUser-" + flags);
final long sessionId = logUserCreateJourneyBegin(nextProbableUserId, userType, flags);
try {
return createUserInternalUncheckedNoTracing(name, userType, flags, parentId,
preCreate, disallowedPackages, t);
} finally {
logUserCreateJourneyFinish(sessionId, nextProbableUserId);
t.traceEnd();
}
}
private long logUserCreateJourneyBegin(@UserIdInt int userId, String userType,
@UserInfoFlag int flags) {
final long sessionId = ThreadLocalRandom.current().nextLong(1, Long.MAX_VALUE);
// log the journey atom with the user metadata
FrameworkStatsLog.write(FrameworkStatsLog.USER_LIFECYCLE_JOURNEY_REPORTED, sessionId,
FrameworkStatsLog.USER_LIFECYCLE_JOURNEY_REPORTED__JOURNEY__USER_CREATE,
/* origin_user= */ -1, userId, UserManager.getUserTypeForStatsd(userType), flags);
// log the event atom to indicate the event start
FrameworkStatsLog.write(FrameworkStatsLog.USER_LIFECYCLE_EVENT_OCCURRED, sessionId, userId,
FrameworkStatsLog.USER_LIFECYCLE_EVENT_OCCURRED__EVENT__CREATE_USER,
FrameworkStatsLog.USER_LIFECYCLE_EVENT_OCCURRED__STATE__BEGIN);
return sessionId;
}
private void logUserCreateJourneyFinish(long sessionId, @UserIdInt int userId) {
FrameworkStatsLog.write(FrameworkStatsLog.USER_LIFECYCLE_EVENT_OCCURRED, sessionId, userId,
FrameworkStatsLog.USER_LIFECYCLE_EVENT_OCCURRED__EVENT__CREATE_USER,
FrameworkStatsLog.USER_LIFECYCLE_EVENT_OCCURRED__STATE__FINISH);
}
private UserInfo createUserInternalUncheckedNoTracing(@Nullable String name,
@NonNull String userType, @UserInfoFlag int flags, @UserIdInt int parentId,
boolean preCreate, @Nullable String[] disallowedPackages,
@NonNull TimingsTraceAndSlog t) throws UserManager.CheckedUserOperationException {
final UserTypeDetails userTypeDetails = mUserTypes.get(userType);
if (userTypeDetails == null) {
Slog.e(LOG_TAG, "Cannot create user of invalid user type: " + userType);
return null;
}
userType = userType.intern(); // Now that we know it's valid, we can intern it.
flags |= userTypeDetails.getDefaultUserInfoFlags();
if (!checkUserTypeConsistency(flags)) {
Slog.e(LOG_TAG, "Cannot add user. Flags (" + Integer.toHexString(flags)
+ ") and userTypeDetails (" + userType + ") are inconsistent.");
return null;
}
if ((flags & UserInfo.FLAG_SYSTEM) != 0) {
Slog.e(LOG_TAG, "Cannot add user. Flags (" + Integer.toHexString(flags)
+ ") indicated SYSTEM user, which cannot be created.");
return null;
}
synchronized (mUsersLock) {
if (mForceEphemeralUsers) {
flags |= UserInfo.FLAG_EPHEMERAL;
}
}
// Try to use a pre-created user (if available).
if (!preCreate && parentId < 0 && isUserTypeEligibleForPreCreation(userTypeDetails)) {
final UserInfo preCreatedUser = convertPreCreatedUserIfPossible(userType, flags, name);
if (preCreatedUser != null) {
return preCreatedUser;
}
}
DeviceStorageMonitorInternal dsm = LocalServices
.getService(DeviceStorageMonitorInternal.class);
if (dsm.isMemoryLow()) {
throwCheckedUserOperationException("Cannot add user. Not enough space on disk.",
UserManager.USER_OPERATION_ERROR_LOW_STORAGE);
}
final boolean isProfile = userTypeDetails.isProfile();
final boolean isGuest = UserManager.isUserTypeGuest(userType);
final boolean isRestricted = UserManager.isUserTypeRestricted(userType);
final boolean isDemo = UserManager.isUserTypeDemo(userType);
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) {
throwCheckedUserOperationException(
"Cannot find user data for parent user " + parentId,
UserManager.USER_OPERATION_ERROR_UNKNOWN);
}
}
if (!preCreate && !canAddMoreUsersOfType(userTypeDetails)) {
throwCheckedUserOperationException("Cannot add more users of type " + userType
+ ". Maximum number of that type already exists.",
UserManager.USER_OPERATION_ERROR_MAX_USERS);
}
// TODO(b/142482943): Perhaps let the following code apply to restricted users too.
if (isProfile && !canAddMoreProfilesToUser(userType, parentId, false)) {
throwCheckedUserOperationException(
"Cannot add more profiles of type " + userType
+ " for user " + parentId,
UserManager.USER_OPERATION_ERROR_MAX_USERS);
}
if (!isGuest && !isProfile && !isDemo && isUserLimitReached()) {
// If we're not adding a guest/demo user or a profile and the 'user limit' has
// been reached, cannot add a user.
throwCheckedUserOperationException(
"Cannot add user. Maximum user limit is reached.",
UserManager.USER_OPERATION_ERROR_MAX_USERS);
}
// In legacy mode, restricted profile's parent can only be the owner user
if (isRestricted && !UserManager.isSplitSystemUser()
&& (parentId != UserHandle.USER_SYSTEM)) {
throwCheckedUserOperationException(
"Cannot add restricted profile - parent user must be owner",
UserManager.USER_OPERATION_ERROR_UNKNOWN);
}
if (isRestricted && UserManager.isSplitSystemUser()) {
if (parent == null) {
throwCheckedUserOperationException(
"Cannot add restricted profile - parent user must be specified",
UserManager.USER_OPERATION_ERROR_UNKNOWN);
}
if (!parent.info.canHaveProfile()) {
throwCheckedUserOperationException(
"Cannot add restricted profile - profiles cannot be created for "
+ "the specified parent user id "
+ parentId,
UserManager.USER_OPERATION_ERROR_UNKNOWN);
}
}
userId = getNextAvailableId();
Environment.getUserSystemDirectory(userId).mkdirs();
synchronized (mUsersLock) {
// Inherit ephemeral flag from parent.
if (parent != null && parent.info.isEphemeral()) {
flags |= UserInfo.FLAG_EPHEMERAL;
}
// Always clear EPHEMERAL for pre-created users, otherwise the storage key
// won't be persisted. The flag will be re-added (if needed) when the
// pre-created user is "converted" to a normal user.
if (preCreate) {
flags &= ~UserInfo.FLAG_EPHEMERAL;
}
userInfo = new UserInfo(userId, name, null, flags, userType);
userInfo.serialNumber = mNextSerialNumber++;
userInfo.creationTime = getCreationTime();
userInfo.partial = true;
userInfo.preCreated = preCreate;
userInfo.lastLoggedInFingerprint = Build.FINGERPRINT;
if (userTypeDetails.hasBadge() && parentId != UserHandle.USER_NULL) {
userInfo.profileBadge = getFreeProfileBadgeLU(parentId, userType);
}
userData = new UserData();
userData.info = userInfo;
mUsers.put(userId, userData);
}
writeUserLP(userData);
writeUserListLP();
if (parent != null) {
if (isProfile) {
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;
}
}
}
t.traceBegin("createUserKey");
final StorageManager storage = mContext.getSystemService(StorageManager.class);
storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral());
t.traceEnd();
t.traceBegin("prepareUserData");
mUserDataPreparer.prepareUserData(userId, userInfo.serialNumber,
StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE);
t.traceEnd();
final Set<String> userTypeInstallablePackages =
mSystemPackageInstaller.getInstallablePackagesForUserType(userType);
t.traceBegin("PM.createNewUser");
mPm.createNewUser(userId, userTypeInstallablePackages, disallowedPackages);
t.traceEnd();
userInfo.partial = false;
synchronized (mPackagesLock) {
writeUserLP(userData);
}
updateUserIds();
Bundle restrictions = new Bundle();
if (isGuest) {
// Guest default restrictions can be modified via setDefaultGuestRestrictions.
synchronized (mGuestRestrictions) {
restrictions.putAll(mGuestRestrictions);
}
} else {
userTypeDetails.addDefaultRestrictionsTo(restrictions);
}
synchronized (mRestrictionsLock) {
mBaseUserRestrictions.updateRestrictions(userId, restrictions);
}
t.traceBegin("PM.onNewUserCreated-" + userId);
mPm.onNewUserCreated(userId);
t.traceEnd();
if (preCreate) {
// Must start user (which will be stopped right away, through
// UserController.finishUserUnlockedCompleted) so services can properly
// intialize it.
// TODO(b/143092698): in the long-term, it might be better to add a onCreateUser()
// callback on SystemService instead.
Slog.i(LOG_TAG, "starting pre-created user " + userInfo.toFullString());
final IActivityManager am = ActivityManager.getService();
try {
am.startUserInBackground(userId);
} catch (RemoteException e) {
Slog.w(LOG_TAG, "could not start pre-created user " + userId, e);
}
} else {
dispatchUserAddedIntent(userInfo);
}
} finally {
Binder.restoreCallingIdentity(ident);
}
// TODO(b/143092698): it's possible to reach "max users overflow" when the user is created
// "from scratch" (i.e., not from a pre-created user) and reaches the maximum number of
// users without counting the pre-created one. Then when the pre-created is converted, the
// "effective" number of max users is exceeds. Example:
// Max: 3 Current: 2 full (u0 and u10) + 1 pre-created (u11)
// Step 1: create(/* flags doesn't match u11 */): u12 is created, "effective max" is now 3
// (u0, u10, u12) but "real" max is 4 (u0, u10, u11, u12)
// Step 2: create(/* flags match u11 */): u11 is converted, now "effective max" is also 4
// (u0, u10, u11, u12)
// One way to avoid this issue is by removing a pre-created user from the pool when the
// "real" max exceeds the max here.
return userInfo;
}
/**
* Finds and converts a previously pre-created user into a regular user, if possible.
*
* @return the converted user, or {@code null} if no pre-created user could be converted.
*/
private @Nullable UserInfo convertPreCreatedUserIfPossible(String userType,
@UserInfoFlag int flags, String name) {
final UserData preCreatedUserData;
synchronized (mUsersLock) {
preCreatedUserData = getPreCreatedUserLU(userType);
}
if (preCreatedUserData == null) {
return null;
}
final UserInfo preCreatedUser = preCreatedUserData.info;
final int newFlags = preCreatedUser.flags | flags;
if (!checkUserTypeConsistency(newFlags)) {
Slog.wtf(LOG_TAG, "Cannot reuse pre-created user " + preCreatedUser.id
+ " of type " + userType + " because flags are inconsistent. "
+ "Flags (" + Integer.toHexString(flags) + "); preCreatedUserFlags ( "
+ Integer.toHexString(preCreatedUser.flags) + ").");
return null;
}
Slog.i(LOG_TAG, "Reusing pre-created user " + preCreatedUser.id + " of type "
+ userType + " and bestowing on it flags " + UserInfo.flagsToString(flags));
preCreatedUser.name = name;
preCreatedUser.flags = newFlags;
preCreatedUser.preCreated = false;
preCreatedUser.creationTime = getCreationTime();
synchronized (mPackagesLock) {
writeUserLP(preCreatedUserData);
writeUserListLP();
}
updateUserIds();
if (!mPm.readPermissionStateForUser(preCreatedUser.id)) {
// Could not read the existing permissions, re-grant them.
mPm.onNewUserCreated(preCreatedUser.id);
}
dispatchUserAddedIntent(preCreatedUser);
return preCreatedUser;
}
/** Checks that the flags do not contain mutually exclusive types/properties. */
static boolean checkUserTypeConsistency(@UserInfoFlag int flags) {
// Mask to check that flags don't refer to multiple user types.
final int userTypeFlagMask = UserInfo.FLAG_GUEST | UserInfo.FLAG_DEMO
| UserInfo.FLAG_RESTRICTED | UserInfo.FLAG_PROFILE;
return isAtMostOneFlag(flags & userTypeFlagMask)
&& isAtMostOneFlag(flags & (UserInfo.FLAG_PROFILE | UserInfo.FLAG_FULL))
&& isAtMostOneFlag(flags & (UserInfo.FLAG_PROFILE | UserInfo.FLAG_SYSTEM));
}
/** Returns whether the given flags contains at most one 1. */
private static boolean isAtMostOneFlag(int flags) {
return (flags & (flags - 1)) == 0;
// If !=0, this means that flags is not a power of 2, and therefore is multiple types.
}
/** Install/uninstall system packages for all users based on their user-type, as applicable. */
boolean installWhitelistedSystemPackages(boolean isFirstBoot, boolean isUpgrade,
@Nullable ArraySet<String> existingPackages) {
return mSystemPackageInstaller.installWhitelistedSystemPackages(
isFirstBoot, isUpgrade, existingPackages);
}
private long getCreationTime() {
final long now = System.currentTimeMillis();
return (now > EPOCH_PLUS_30_YEARS) ? now : 0;
}
private void dispatchUserAddedIntent(@NonNull UserInfo userInfo) {
Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED);
addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userInfo.id);
// Also, add the UserHandle for mainline modules which can't use the @hide
// EXTRA_USER_HANDLE.
addedIntent.putExtra(Intent.EXTRA_USER, UserHandle.of(userInfo.id));
mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL,
android.Manifest.permission.MANAGE_USERS);
MetricsLogger.count(mContext, userInfo.isGuest() ? TRON_GUEST_CREATED
: (userInfo.isDemo() ? TRON_DEMO_CREATED : TRON_USER_CREATED), 1);
}
/**
* Gets a pre-created user for the given user type.
*
* <p>Should be used only during user creation, so the pre-created user can be used (instead of
* creating and initializing a new user from scratch).
*/
// TODO(b/143092698): add unit test
@GuardedBy("mUsersLock")
private @Nullable UserData getPreCreatedUserLU(String userType) {
if (DBG) Slog.d(LOG_TAG, "getPreCreatedUser(): userType= " + userType);
final int userSize = mUsers.size();
for (int i = 0; i < userSize; i++) {
final UserData user = mUsers.valueAt(i);
if (DBG) Slog.d(LOG_TAG, i + ":" + user.info.toFullString());
if (user.info.preCreated && user.info.userType.equals(userType)) {
if (!user.info.isInitialized()) {
Slog.w(LOG_TAG, "found pre-created user of type " + userType
+ ", but it's not initialized yet: " + user.info.toFullString());
continue;
}
return user;
}
}
return null;
}
/**
* Returns whether a user with the given userTypeDetails is eligible to be
* {@link UserInfo#preCreated}.
*/
private static boolean isUserTypeEligibleForPreCreation(UserTypeDetails userTypeDetails) {
if (userTypeDetails == null) {
return false;
}
return !userTypeDetails.isProfile()
&& !userTypeDetails.getName().equals(UserManager.USER_TYPE_FULL_RESTRICTED);
}
@VisibleForTesting
UserData putUserInfo(UserInfo userInfo) {
final UserData userData = new UserData();
userData.info = userInfo;
synchronized (mUsers) {
mUsers.put(userInfo.id, userData);
}
return userData;
}
@VisibleForTesting
void removeUserInfo(@UserIdInt int userId) {
synchronized (mUsers) {
mUsers.remove(userId);
}
}
/**
* @hide
*/
@Override
public UserInfo createRestrictedProfileWithThrow(String name, int parentUserId) {
checkManageOrCreateUsersPermission("setupRestrictedProfile");
final UserInfo user = createProfileForUserWithThrow(
name, UserManager.USER_TYPE_FULL_RESTRICTED, 0, parentUserId, null);
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.
*
* @return The current guest user. Null if it doesn't exist.
* @hide
*/
@Override
public UserInfo findCurrentGuestUser() {
checkManageUsersPermission("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 && !user.preCreated
&& !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 userId the userid of the current guest
* @return whether the user could be marked for deletion
*/
@Override
public boolean markGuestForDeletion(@UserIdInt int userId) {
checkManageUsersPermission("Only the system can remove users");
if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean(
UserManager.DISALLOW_REMOVE_USER, false)) {
Slog.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(userId);
if (userId == 0 || userData == null || mRemovingUserIds.get(userId)) {
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 userId the user's id
*/
@Override
public boolean removeUser(@UserIdInt int userId) {
Slog.i(LOG_TAG, "removeUser u" + userId);
checkManageOrCreateUsersPermission("Only the system can remove users");
final boolean isManagedProfile;
synchronized (mUsersLock) {
UserInfo userInfo = getUserInfoLU(userId);
isManagedProfile = userInfo != null && userInfo.isManagedProfile();
}
String restriction = isManagedProfile
? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE : UserManager.DISALLOW_REMOVE_USER;
if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean(restriction, false)) {
Slog.w(LOG_TAG, "Cannot remove user. " + restriction + " is enabled.");
return false;
}
return removeUserUnchecked(userId);
}
@Override
public boolean removeUserEvenWhenDisallowed(@UserIdInt int userId) {
checkManageOrCreateUsersPermission("Only the system can remove users");
return removeUserUnchecked(userId);
}
private boolean removeUserUnchecked(@UserIdInt int userId) {
long ident = Binder.clearCallingIdentity();
try {
final UserData userData;
int currentUser = ActivityManager.getCurrentUser();
if (currentUser == userId) {
Slog.w(LOG_TAG, "Current user cannot be removed.");
return false;
}
synchronized (mPackagesLock) {
synchronized (mUsersLock) {
userData = mUsers.get(userId);
if (userId == UserHandle.USER_SYSTEM) {
Slog.e(LOG_TAG, "System user cannot be removed.");
return false;
}
if (userData == null) {
Slog.e(LOG_TAG, String.format(
"Cannot remove user %d, invalid user id provided.", userId));
return false;
}
if (mRemovingUserIds.get(userId)) {
Slog.e(LOG_TAG, String.format(
"User %d is already scheduled for removal.", userId));
return false;
}
addRemovingUserIdLocked(userId);
}
// 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);
}
try {
mAppOpsService.removeUser(userId);
} catch (RemoteException e) {
Slog.w(LOG_TAG, "Unable to notify AppOpsService of removing user.", e);
}
// TODO(b/142482943): Send some sort of broadcast for profiles even if non-managed?
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 " + userId);
int res;
try {
res = ActivityManager.getService().stopUser(userId, /* force= */ true,
new IStopUserCallback.Stub() {
@Override
public void userStopped(int userIdParam) {
finishRemoveUser(userIdParam);
}
@Override
public void userStopAborted(int userIdParam) {
}
});
} catch (RemoteException e) {
Slog.w(LOG_TAG, "Failed to stop user during removal.", e);
return false;
}
return res == ActivityManager.USER_OP_SUCCESS;
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@GuardedBy("mUsersLock")
@VisibleForTesting
void addRemovingUserIdLocked(@UserIdInt int userId) {
// We remember deleted user IDs to prevent them from being
// reused during the current boot; they can still be reused
// after a reboot or recycling of userIds.
mRemovingUserIds.put(userId, true);
mRecentlyRemovedIds.add(userId);
// Keep LRU queue of recently removed IDs for recycling
if (mRecentlyRemovedIds.size() > MAX_RECENTLY_REMOVED_IDS_SIZE) {
mRecentlyRemovedIds.removeFirst();
}
}
void finishRemoveUser(final @UserIdInt int userId) {
if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userId);
// 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 removedIntent = new Intent(Intent.ACTION_USER_REMOVED);
removedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId);
// Also, add the UserHandle for mainline modules which can't use the @hide
// EXTRA_USER_HANDLE.
removedIntent.putExtra(Intent.EXTRA_USER, UserHandle.of(userId));
mContext.sendOrderedBroadcastAsUser(removedIntent, 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 "
+ userId);
}
new Thread() {
@Override
public void run() {
LocalServices.getService(ActivityManagerInternal.class)
.onUserRemoved(userId);
removeUserState(userId);
}
}.start();
}
},
null, Activity.RESULT_OK, null, null);
} finally {
Binder.restoreCallingIdentity(ident);
}
}
private void removeUserState(final @UserIdInt int userId) {
try {
mContext.getSystemService(StorageManager.class).destroyUserKey(userId);
} catch (IllegalStateException e) {
// This may be simply because the user was partially created.
Slog.i(LOG_TAG, "Destroying key for user " + userId + " failed, continuing anyway", e);
}
// Cleanup gatekeeper secure user id
try {
final IGateKeeperService gk = GateKeeper.getService();
if (gk != null) {
gk.clearSecureUserId(userId);
}
} catch (Exception ex) {
Slog.w(LOG_TAG, "unable to clear GK secure user id");
}
// Cleanup package manager settings
mPm.cleanUpUser(this, userId);
// Clean up all data before removing metadata
mUserDataPreparer.destroyUserData(userId,
StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE);
// Remove this user from the list
synchronized (mUsersLock) {
mUsers.remove(userId);
mIsUserManaged.delete(userId);
}
synchronized (mUserStates) {
mUserStates.delete(userId);
}
synchronized (mRestrictionsLock) {
mBaseUserRestrictions.remove(userId);
mAppliedUserRestrictions.remove(userId);
mCachedEffectiveUserRestrictions.remove(userId);
// Remove local restrictions affecting user
mDevicePolicyLocalUserRestrictions.delete(userId);
// Remove local restrictions set by user
boolean changed = false;
for (int i = 0; i < mDevicePolicyLocalUserRestrictions.size(); i++) {
int targetUserId = mDevicePolicyLocalUserRestrictions.keyAt(i);
changed |= getDevicePolicyLocalRestrictionsForTargetUserLR(targetUserId)
.remove(userId);
}
changed |= mDevicePolicyGlobalUserRestrictions.remove(userId);
if (changed) {
applyUserRestrictionsForAllUsersLR();
}
}
// Update the user list
synchronized (mPackagesLock) {
writeUserListLP();
}
// Remove user file
AtomicFile userFile = new AtomicFile(new File(mUsersDir, userId + XML_SUFFIX));
userFile.delete();
updateUserIds();
if (RELEASE_DELETED_USER_ID) {
synchronized (mUsers) {
mRemovingUserIds.delete(userId);
}
}
}
private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) {
Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED);
managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId));
managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId);
final UserHandle parentHandle = new UserHandle(parentUserId);
getDevicePolicyManagerInternal().broadcastIntentToCrossProfileManifestReceiversAsUser(
managedProfileIntent, parentHandle, /* requiresPermission= */ false);
managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY
| Intent.FLAG_RECEIVER_FOREGROUND);
mContext.sendBroadcastAsUser(managedProfileIntent, parentHandle,
/* receiverPermission= */null);
}
@Override
public Bundle getApplicationRestrictions(String packageName) {
return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId());
}
@Override
public Bundle getApplicationRestrictionsForUser(String packageName, @UserIdInt int userId) {
if (UserHandle.getCallingUserId() != userId
|| !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) {
checkSystemOrRoot("get application restrictions for other user/app " + packageName);
}
synchronized (mAppRestrictionsLock) {
// Read the restrictions from XML
return readApplicationRestrictionsLAr(packageName, userId);
}
}
@Override
public void setApplicationRestrictions(String packageName, Bundle restrictions,
@UserIdInt int userId) {
checkSystemOrRoot("set application restrictions");
if (restrictions != null) {
restrictions.setDefusable(true);
}
final boolean changed;
synchronized (mAppRestrictionsLock) {
if (restrictions == null || restrictions.isEmpty()) {
changed = cleanAppRestrictionsForPackageLAr(packageName, userId);
} else {
// Write the restrictions to XML
writeApplicationRestrictionsLAr(packageName, restrictions, userId);
// TODO(b/154323615): avoid unnecessary broadcast when there is no change.
changed = true;
}
}
if (!changed) {
return;
}
// Notify package of changes via an intent - only sent to explicitly registered receivers.
final 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_ANY_USER).uid;
} catch (NameNotFoundException nnfe) {
return -1;
} finally {
Binder.restoreCallingIdentity(ident);
}
}
@GuardedBy("mAppRestrictionsLock")
private static Bundle readApplicationRestrictionsLAr(String packageName,
@UserIdInt int userId) {
AtomicFile restrictionsFile =
new AtomicFile(new File(Environment.getUserSystemDirectory(userId),
packageToRestrictionsFileName(packageName)));
return readApplicationRestrictionsLAr(restrictionsFile);
}
@VisibleForTesting
@GuardedBy("mAppRestrictionsLock")
static Bundle readApplicationRestrictionsLAr(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) {
Slog.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;
}
@GuardedBy("mAppRestrictionsLock")
private static void writeApplicationRestrictionsLAr(String packageName,
Bundle restrictions, @UserIdInt int userId) {
AtomicFile restrictionsFile = new AtomicFile(
new File(Environment.getUserSystemDirectory(userId),
packageToRestrictionsFileName(packageName)));
writeApplicationRestrictionsLAr(restrictions, restrictionsFile);
}
@VisibleForTesting
@GuardedBy("mAppRestrictionsLock")
static void writeApplicationRestrictionsLAr(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(@UserIdInt int userId) {
synchronized (mUsersLock) {
final UserInfo userInfo = getUserInfoLU(userId);
return userInfo != null ? userInfo.serialNumber : -1;
}
}
@Override
public boolean isUserNameSet(@UserIdInt int userId) {
if (!hasManageUsersOrPermission(android.Manifest.permission.GET_ACCOUNTS_PRIVILEGED)) {
throw new SecurityException("You need MANAGE_USERS or GET_ACCOUNTS_PRIVILEGED "
+ "permissions to: get whether user name is set");
}
synchronized (mUsersLock) {
final UserInfo userInfo = getUserInfoLU(userId);
return userInfo != null && userInfo.name != null;
}
}
@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(@UserIdInt int userId) {
int callingUserId = UserHandle.getCallingUserId();
UserInfo userInfo = null;
synchronized (mUsersLock) {
if (callingUserId == userId) {
userInfo = getUserInfoLU(userId);
} else {
UserInfo parent = getProfileParentLU(userId);
if (parent != null && parent.id == callingUserId) {
userInfo = getUserInfoLU(userId);
}
}
}
if (userInfo == null) {
throw new SecurityException("userId 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++) {
UserInfo userInfo = mUsers.valueAt(i).info;
if (!userInfo.partial && !userInfo.preCreated) {
num++;
}
}
final int[] newUsers = new int[num];
int n = 0;
for (int i = 0; i < userSize; i++) {
UserInfo userInfo = mUsers.valueAt(i).info;
if (!userInfo.partial && !userInfo.preCreated) {
newUsers[n++] = mUsers.keyAt(i);
}
}
mUserIds = newUsers;
}
}
/**
* Called right before a user is started. This gives us a chance to prepare
* app storage and apply any user restrictions.
*/
public void onBeforeStartUser(@UserIdInt int userId) {
UserInfo userInfo = getUserInfo(userId);
if (userInfo == null) {
return;
}
TimingsTraceAndSlog t = new TimingsTraceAndSlog();
t.traceBegin("onBeforeStartUser-" + userId);
final int userSerial = userInfo.serialNumber;
// Migrate only if build fingerprints mismatch
boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint);
t.traceBegin("prepareUserData");
mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE);
t.traceEnd();
t.traceBegin("reconcileAppsData");
mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE, migrateAppsData);
t.traceEnd();
if (userId != UserHandle.USER_SYSTEM) {
t.traceBegin("applyUserRestrictions");
synchronized (mRestrictionsLock) {
applyUserRestrictionsLR(userId);
}
t.traceEnd();
}
t.traceEnd(); // onBeforeStartUser
}
/**
* Called right before a user is unlocked. This gives us a chance to prepare
* app storage.
*/
public void onBeforeUnlockUser(@UserIdInt int userId) {
UserInfo userInfo = getUserInfo(userId);
if (userInfo == null) {
return;
}
final int userSerial = userInfo.serialNumber;
// Migrate only if build fingerprints mismatch
boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint);
mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE);
mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE, migrateAppsData);
}
/**
* Examine all users present on given mounted volume, and destroy data
* belonging to users that are no longer valid, or whose user ID has been
* recycled.
*/
void reconcileUsers(String volumeUuid) {
mUserDataPreparer.reconcileUsers(volumeUuid, getUsers(
/* excludePartial= */ true,
/* excludeDying= */ true,
/* excludePreCreated= */ false));
}
/**
* Make a note of the last started time of a user and do some cleanup.
* This is called with ActivityManagerService lock held.
* @param userId the user that was just foregrounded
*/
public void onUserLoggedIn(@UserIdInt int userId) {
UserData userData = getUserDataNoChecks(userId);
if (userData == null || userData.info.partial) {
Slog.w(LOG_TAG, "userForeground: unknown user #" + userId);
return;
}
final long now = System.currentTimeMillis();
if (now > EPOCH_PLUS_30_YEARS) {
userData.info.lastLoggedInTime = now;
}
userData.info.lastLoggedInFingerprint = Build.FINGERPRINT;
scheduleWriteUser(userData);
}
/**
* Returns the next available user id, filling in any holes in the ids.
*/
@VisibleForTesting
int getNextAvailableId() {
int nextId;
synchronized (mUsersLock) {
nextId = scanNextAvailableIdLocked();
if (nextId >= 0) {
return nextId;
}
// All ids up to MAX_USER_ID were used. Remove all mRemovingUserIds,
// except most recently removed
if (mRemovingUserIds.size() > 0) {
Slog.i(LOG_TAG, "All available IDs are used. Recycling LRU ids.");
mRemovingUserIds.clear();
for (Integer recentlyRemovedId : mRecentlyRemovedIds) {
mRemovingUserIds.put(recentlyRemovedId, true);
}
nextId = scanNextAvailableIdLocked();
}
}
if (nextId < 0) {
throw new IllegalStateException("No user id available!");
}
return nextId;
}
@GuardedBy("mUsersLock")
private int scanNextAvailableIdLocked() {
for (int i = MIN_USER_ID; i < MAX_USER_ID; i++) {
if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) {
return i;
}
}
return -1;
}
private static String packageToRestrictionsFileName(String packageName) {
return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX;
}
@Override
public void setSeedAccountData(@UserIdInt 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, ShellCallback callback,
ResultReceiver resultReceiver) {
(new Shell()).exec(this, in, out, err, args, callback, 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, shell);
case "list-missing-system-packages":
return runListMissingSystemPackages(pw, shell);
default:
return shell.handleDefaultCommands(cmd);
}
} catch (RemoteException e) {
pw.println("Remote exception: " + e);
}
return -1;
}
private int runList(PrintWriter pw, Shell shell) throws RemoteException {
boolean all = false;
boolean verbose = false;
String opt;
while ((opt = shell.getNextOption()) != null) {
switch (opt) {
case "-v":
verbose = true;
break;
case "--all":
all = true;
break;
default:
pw.println("Invalid option: " + opt);
return -1;
}
}
final IActivityManager am = ActivityManager.getService();
final List<UserInfo> users = getUsers(/* excludePartial= */ !all,
/* excludingDying=*/ false, /* excludePreCreated= */ !all);
if (users == null) {
pw.println("Error: couldn't get users");
return 1;
} else {
final int size = users.size();
int currentUser = UserHandle.USER_NULL;
if (verbose) {
pw.printf("%d users:\n\n", size);
currentUser = am.getCurrentUser().id;
} else {
// NOTE: the standard "list users" command is used by integration tests and
// hence should not be changed. If you need to add more info, use the
// verbose option.
pw.println("Users:");
}
for (int i = 0; i < size; i++) {
final UserInfo user = users.get(i);
final boolean running = am.isUserRunning(user.id, 0);
final boolean current = user.id == currentUser;
if (verbose) {
pw.printf("%d: id=%d, name=%s, flags=%s%s%s%s%s\n", i, user.id, user.name,
UserInfo.flagsToString(user.flags),
running ? " (running)" : "",
user.partial ? " (partial)" : "",
user.preCreated ? " (pre-created)" : "",
current ? " (current)" : "");
} else {
// NOTE: the standard "list users" command is used by integration tests and
// hence should not be changed. If you need to add more info, use the
// verbose option.
pw.printf("\t%s%s\n", user, running ? " running" : "");
}
}
return 0;
}
}
private int runListMissingSystemPackages(PrintWriter pw, Shell shell) {
boolean verbose = false;
boolean force = false;
String opt;
while ((opt = shell.getNextOption()) != null) {
switch (opt) {
case "-v":
verbose = true;
break;
case "--force":
force = true;
break;
default:
pw.println("Invalid option: " + opt);
return -1;
}
}
try (IndentingPrintWriter ipw = new IndentingPrintWriter(pw, " ")) {
mSystemPackageInstaller.dumpMissingSystemPackages(ipw, force, verbose);
}
return 0;
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (!DumpUtils.checkDumpPermission(mContext, LOG_TAG, pw)) return;
long now = System.currentTimeMillis();
final long nowRealtime = SystemClock.elapsedRealtime();
final ActivityManagerInternal amInternal = LocalServices
.getService(ActivityManagerInternal.class);
pw.print("Current user: ");
if (amInternal != null) {
pw.println(amInternal.getCurrentUserId());
} else {
pw.println("N/A");
}
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);
pw.print(" isPrimary="); pw.print(userInfo.isPrimary());
if (mRemovingUserIds.get(userId)) {
pw.print(" <removing> ");
}
if (userInfo.partial) {
pw.print(" <partial>");
}
if (userInfo.preCreated) {
pw.print(" <pre-created>");
}
pw.println();
pw.print(" Type: "); pw.println(userInfo.userType);
pw.print(" Flags: "); pw.print(userInfo.flags); pw.print(" (");
pw.print(UserInfo.flagsToString(userInfo.flags)); pw.println(")");
pw.print(" State: ");
final int state;
synchronized (mUserStates) {
state = mUserStates.get(userId, -1);
}
pw.println(UserState.stateToString(state));
pw.print(" Created: ");
dumpTimeAgo(pw, sb, now, userInfo.creationTime);
pw.print(" Last logged in: ");
dumpTimeAgo(pw, sb, now, userInfo.lastLoggedInTime);
pw.print(" Last logged in fingerprint: ");
pw.println(userInfo.lastLoggedInFingerprint);
pw.print(" Start time: ");
dumpTimeAgo(pw, sb, nowRealtime, userData.startRealtime);
pw.print(" Unlock time: ");
dumpTimeAgo(pw, sb, nowRealtime, userData.unlockRealtime);
pw.print(" Has profile owner: ");
pw.println(mIsUserManaged.get(userId));
pw.println(" Restrictions:");
synchronized (mRestrictionsLock) {
UserRestrictionsUtils.dumpRestrictions(
pw, " ", mBaseUserRestrictions.getRestrictions(userInfo.id));
pw.println(" Device policy global restrictions:");
UserRestrictionsUtils.dumpRestrictions(
pw, " ",
mDevicePolicyGlobalUserRestrictions.getRestrictions(userInfo.id));
pw.println(" Device policy local restrictions:");
getDevicePolicyLocalRestrictionsForTargetUserLR(
userInfo.id).dumpRestrictions(pw, " ");
pw.println(" Effective restrictions:");
UserRestrictionsUtils.dumpRestrictions(
pw, " ",
mCachedEffectiveUserRestrictions.getRestrictions(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 owner id:" + mDeviceOwnerUserId);
pw.println();
pw.println(" Guest restrictions:");
synchronized (mGuestRestrictions) {
UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions);
}
synchronized (mUsersLock) {
pw.println();
pw.println(" Device managed: " + mIsDeviceManaged);
if (mRemovingUserIds.size() > 0) {
pw.println();
pw.println(" Recently removed userIds: " + mRecentlyRemovedIds);
}
}
synchronized (mUserStates) {
pw.println(" Started users state: " + mUserStates);
}
} // synchronized (mPackagesLock)
// Dump some capabilities
pw.println();
pw.print(" Max users: " + UserManager.getMaxSupportedUsers());
pw.println(" (limit reached: " + isUserLimitReached() + ")");
pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers());
pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean(
com.android.internal.R.bool.config_guestUserEphemeral));
pw.println(" Force ephemeral users: " + mForceEphemeralUsers);
pw.println(" Is split-system user: " + UserManager.isSplitSystemUser());
pw.println(" Is headless-system mode: " + UserManager.isHeadlessSystemUserMode());
pw.println(" User version: " + mUserVersion);
// Dump UserTypes
pw.println();
pw.println(" User types (" + mUserTypes.size() + " types):");
for (int i = 0; i < mUserTypes.size(); i++) {
pw.println(" " + mUserTypes.keyAt(i) + ": ");
mUserTypes.valueAt(i).dump(pw);
}
// Dump package whitelist
pw.println();
mSystemPackageInstaller.dump(pw);
}
private static void dumpTimeAgo(PrintWriter pw, StringBuilder sb, long nowTime, long time) {
if (time == 0) {
pw.println("<unknown>");
} else {
sb.setLength(0);
TimeUtils.formatDuration(nowTime - time, sb);
sb.append(" ago");
pw.println(sb);
}
}
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 isUserInitialized(@UserIdInt int userId) {
return mLocalService.isUserInitialized(userId);
}
private class LocalService extends UserManagerInternal {
@Override
public void setDevicePolicyUserRestrictions(@UserIdInt int originatingUserId,
@NonNull Bundle global, @NonNull RestrictionsSet local,
boolean isDeviceOwner) {
UserManagerService.this.setDevicePolicyUserRestrictionsInner(originatingUserId,
global, local, isDeviceOwner);
}
@Override
public Bundle getBaseUserRestrictions(@UserIdInt int userId) {
synchronized (mRestrictionsLock) {
return mBaseUserRestrictions.getRestrictions(userId);
}
}
@Override
public void setBaseUserRestrictionsByDpmsForMigration(
@UserIdInt int userId, Bundle baseRestrictions) {
synchronized (mRestrictionsLock) {
if (mBaseUserRestrictions.updateRestrictions(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(@UserIdInt 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 boolean isDeviceManaged() {
synchronized (mUsersLock) {
return mIsDeviceManaged;
}
}
@Override
public void setUserManaged(@UserIdInt int userId, boolean isManaged) {
synchronized (mUsersLock) {
mIsUserManaged.put(userId, isManaged);
}
}
@Override
public boolean isUserManaged(@UserIdInt int userId) {
synchronized (mUsersLock) {
return mIsUserManaged.get(userId);
}
}
@Override
public void setUserIcon(@UserIdInt 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(@UserIdInt 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, @NonNull String userType,
@UserInfoFlag int flags, String[] disallowedPackages)
throws UserManager.CheckedUserOperationException {
return createUserInternalUnchecked(name, userType, flags,
UserHandle.USER_NULL, /* preCreated= */ false, disallowedPackages);
}
@Override
public boolean removeUserEvenWhenDisallowed(@UserIdInt int userId) {
return removeUserUnchecked(userId);
}
@Override
public boolean isUserRunning(@UserIdInt int userId) {
synchronized (mUserStates) {
return mUserStates.get(userId, -1) >= 0;
}
}
@Override
public void setUserState(@UserIdInt int userId, int userState) {
synchronized (mUserStates) {
mUserStates.put(userId, userState);
}
}
@Override
public void removeUserState(@UserIdInt int userId) {
synchronized (mUserStates) {
mUserStates.delete(userId);
}
}
@Override
public int[] getUserIds() {
return UserManagerService.this.getUserIds();
}
@Override
public boolean isUserUnlockingOrUnlocked(@UserIdInt int userId) {
int state;
synchronized (mUserStates) {
state = mUserStates.get(userId, -1);
}
// Special case, in the stopping/shutdown state user key can still be unlocked
if (state == UserState.STATE_STOPPING || state == UserState.STATE_SHUTDOWN) {
return StorageManager.isUserKeyUnlocked(userId);
}
return (state == UserState.STATE_RUNNING_UNLOCKING)
|| (state == UserState.STATE_RUNNING_UNLOCKED);
}
/**
* The return values of this method are cached in clients. If the
* logic in this function changes then the cache invalidation code
* may need to be revisited.
*/
@Override
public boolean isUserUnlocked(@UserIdInt int userId) {
int state;
synchronized (mUserStates) {
state = mUserStates.get(userId, -1);
}
// Special case, in the stopping/shutdown state user key can still be unlocked
if (state == UserState.STATE_STOPPING || state == UserState.STATE_SHUTDOWN) {
return StorageManager.isUserKeyUnlocked(userId);
}
return state == UserState.STATE_RUNNING_UNLOCKED;
}
@Override
public boolean isUserInitialized(@UserIdInt int userId) {
return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0;
}
@Override
public boolean exists(@UserIdInt int userId) {
return getUserInfoNoChecks(userId) != null;
}
@Override
public boolean isProfileAccessible(int callingUserId, int targetUserId, String debugMsg,
boolean throwSecurityException) {
if (targetUserId == callingUserId) {
return true;
}
synchronized (mUsersLock) {
UserInfo callingUserInfo = getUserInfoLU(callingUserId);
if (callingUserInfo == null || callingUserInfo.isProfile()) {
if (throwSecurityException) {
throw new SecurityException(
debugMsg + " for another profile "
+ targetUserId + " from " + callingUserId);
}
}
UserInfo targetUserInfo = getUserInfoLU(targetUserId);
if (targetUserInfo == null || !targetUserInfo.isEnabled()) {
// Do not throw any exception here as this could happen due to race conditions
// between the system updating its state and the client getting notified.
if (throwSecurityException) {
Slog.w(LOG_TAG, debugMsg + " for disabled profile "
+ targetUserId + " from " + callingUserId);
}
return false;
}
if (targetUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID ||
targetUserInfo.profileGroupId != callingUserInfo.profileGroupId) {
if (throwSecurityException) {
throw new SecurityException(
debugMsg + " for unrelated profile " + targetUserId);
}
return false;
}
}
return true;
}
@Override
public int getProfileParentId(@UserIdInt int userId) {
synchronized (mUsersLock) {
UserInfo profileParent = getProfileParentLU(userId);
if (profileParent == null) {
return userId;
}
return profileParent.id;
}
}
@Override
public boolean isSettingRestrictedForUser(String setting, @UserIdInt int userId,
String value, int callingUid) {
return UserManagerService.this.isSettingRestrictedForUser(setting, userId,
value, callingUid);
}
@Override
public boolean hasUserRestriction(String restrictionKey, @UserIdInt int userId) {
if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) {
return false;
}
Bundle restrictions = getEffectiveUserRestrictions(userId);
return restrictions != null && restrictions.getBoolean(restrictionKey);
}
@Override
public @Nullable UserInfo getUserInfo(@UserIdInt int userId) {
UserData userData;
synchronized (mUsersLock) {
userData = mUsers.get(userId);
}
return userData == null ? null : userData.info;
}
public @NonNull UserInfo[] getUserInfos() {
synchronized (mUsersLock) {
int userSize = mUsers.size();
UserInfo[] allInfos = new UserInfo[userSize];
for (int i = 0; i < userSize; i++) {
allInfos[i] = mUsers.valueAt(i).info;
}
return allInfos;
}
}
}
/**
* Check if user has restrictions
* @param restriction restrictions to check
* @param userId id of the user
*
* @throws {@link android.os.UserManager.CheckedUserOperationException} if user has any of the
* specified restrictions
*/
private void enforceUserRestriction(String restriction, @UserIdInt int userId, String message)
throws UserManager.CheckedUserOperationException {
if (hasUserRestriction(restriction, userId)) {
String errorMessage = (message != null ? (message + ": ") : "")
+ restriction + " is enabled.";
Slog.w(LOG_TAG, errorMessage);
throw new UserManager.CheckedUserOperationException(errorMessage,
UserManager.USER_OPERATION_ERROR_UNKNOWN);
}
}
/**
* Throws CheckedUserOperationException and shows error log
* @param message message for exception and logging
* @param userOperationResult result/error code
* @throws UserManager.CheckedUserOperationException
*/
private void throwCheckedUserOperationException(@NonNull String message,
@UserManager.UserOperationResult int userOperationResult)
throws UserManager.CheckedUserOperationException {
Slog.e(LOG_TAG, message);
throw new UserManager.CheckedUserOperationException(message, userOperationResult);
}
/* 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 [-v] [-all]");
pw.println(" Prints all users on the system.");
pw.println(" list-missing-system-packages [-v] [--force]");
pw.println(" Prints all system packages that were not explicitly configured to be "
+ "installed.");
}
}
private static void debug(String message) {
Slog.d(LOG_TAG, message
+ (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : ""));
}
/** @see #getMaxUsersOfTypePerParent(UserTypeDetails) */
@VisibleForTesting
int getMaxUsersOfTypePerParent(String userType) {
final UserTypeDetails type = mUserTypes.get(userType);
if (type == null) {
return 0;
}
return getMaxUsersOfTypePerParent(type);
}
/**
* Returns the maximum number of users allowed for the given userTypeDetails per parent user.
* This is applicable for user types that are {@link UserTypeDetails#isProfile()}.
* If there is no maximum, {@link UserTypeDetails#UNLIMITED_NUMBER_OF_USERS} is returned.
*/
private static int getMaxUsersOfTypePerParent(UserTypeDetails userTypeDetails) {
final int defaultMax = userTypeDetails.getMaxAllowedPerParent();
if (!Build.IS_DEBUGGABLE) {
return defaultMax;
} else {
if (userTypeDetails.isManagedProfile()) {
return SystemProperties.getInt("persist.sys.max_profiles", defaultMax);
}
}
return defaultMax;
}
@GuardedBy("mUsersLock")
@VisibleForTesting
int getFreeProfileBadgeLU(int parentUserId, String userType) {
Set<Integer> usedBadges = new ArraySet<>();
final int userSize = mUsers.size();
for (int i = 0; i < userSize; i++) {
UserInfo ui = mUsers.valueAt(i).info;
// Check which badge indexes are already used by this profile group.
if (ui.userType.equals(userType)
&& ui.profileGroupId == parentUserId
&& !mRemovingUserIds.get(ui.id)) {
usedBadges.add(ui.profileBadge);
}
}
int maxUsersOfType = getMaxUsersOfTypePerParent(userType);
if (maxUsersOfType == UserTypeDetails.UNLIMITED_NUMBER_OF_USERS) {
maxUsersOfType = Integer.MAX_VALUE;
}
for (int i = 0; i < maxUsersOfType; i++) {
if (!usedBadges.contains(i)) {
return i;
}
}
return 0;
}
/**
* Checks if the given user has a managed profile associated with it.
* @param userId The parent user
* @return
*/
boolean hasManagedProfile(@UserIdInt int userId) {
synchronized (mUsersLock) {
UserInfo userInfo = getUserInfoLU(userId);
final int userSize = mUsers.size();
for (int i = 0; i < userSize; i++) {
UserInfo profile = mUsers.valueAt(i).info;
if (userId != profile.id && isProfileOf(userInfo, profile)) {
return true;
}
}
return false;
}
}
/**
* Checks if the calling package name matches with the calling UID, throw
* {@link SecurityException} if not.
*/
private void verifyCallingPackage(String callingPackage, int callingUid) {
int packageUid = mPm.getPackageUid(callingPackage, 0, UserHandle.getUserId(callingUid));
if (packageUid != callingUid) {
throw new SecurityException("Specified package " + callingPackage
+ " does not match the calling uid " + callingUid);
}
}
/** Retrieves the internal package manager interface. */
private PackageManagerInternal getPackageManagerInternal() {
// Don't need to synchonize; worst-case scenario LocalServices will be called twice.
if (mPmInternal == null) {
mPmInternal = LocalServices.getService(PackageManagerInternal.class);
}
return mPmInternal;
}
/** Retrieve the internal cross profile apps interface. */
private CrossProfileAppsInternal getCrossProfileAppsInternal() {
if (mCrossProfileAppsInternal == null) {
mCrossProfileAppsInternal = LocalServices.getService(CrossProfileAppsInternal.class);
}
return mCrossProfileAppsInternal;
}
/** Returns the internal device policy manager interface. */
private DevicePolicyManagerInternal getDevicePolicyManagerInternal() {
if (mDevicePolicyManagerInternal == null) {
mDevicePolicyManagerInternal =
LocalServices.getService(DevicePolicyManagerInternal.class);
}
return mDevicePolicyManagerInternal;
}
}