UserManagerService.java revision eafee02fdc463e765ce34b8541f4ba55989b4bee
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.pm; 18 19import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS; 20import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; 21 22import android.Manifest; 23import android.annotation.NonNull; 24import android.annotation.Nullable; 25import android.annotation.UserIdInt; 26import android.app.Activity; 27import android.app.ActivityManager; 28import android.app.ActivityManagerInternal; 29import android.app.ActivityManagerNative; 30import android.app.AppGlobals; 31import android.app.IActivityManager; 32import android.app.IStopUserCallback; 33import android.app.KeyguardManager; 34import android.app.PendingIntent; 35import android.content.BroadcastReceiver; 36import android.content.Context; 37import android.content.Intent; 38import android.content.IntentFilter; 39import android.content.IntentSender; 40import android.content.pm.PackageManager; 41import android.content.pm.PackageManager.NameNotFoundException; 42import android.content.pm.UserInfo; 43import android.content.res.Resources; 44import android.graphics.Bitmap; 45import android.os.Binder; 46import android.os.Build; 47import android.os.Bundle; 48import android.os.Debug; 49import android.os.Environment; 50import android.os.FileUtils; 51import android.os.Handler; 52import android.os.IBinder; 53import android.os.IUserManager; 54import android.os.Message; 55import android.os.ParcelFileDescriptor; 56import android.os.Parcelable; 57import android.os.PersistableBundle; 58import android.os.Process; 59import android.os.RemoteException; 60import android.os.ResultReceiver; 61import android.os.SELinux; 62import android.os.ServiceManager; 63import android.os.ShellCallback; 64import android.os.ShellCommand; 65import android.os.SystemProperties; 66import android.os.UserHandle; 67import android.os.UserManager; 68import android.os.UserManager.EnforcingUser; 69import android.os.UserManagerInternal; 70import android.os.UserManagerInternal.UserRestrictionsListener; 71import android.os.storage.StorageManager; 72import android.security.GateKeeper; 73import android.service.gatekeeper.IGateKeeperService; 74import android.system.ErrnoException; 75import android.system.Os; 76import android.system.OsConstants; 77import android.text.TextUtils; 78import android.util.AtomicFile; 79import android.util.IntArray; 80import android.util.Log; 81import android.util.Slog; 82import android.util.SparseArray; 83import android.util.SparseBooleanArray; 84import android.util.SparseIntArray; 85import android.util.TimeUtils; 86import android.util.Xml; 87 88import com.android.internal.annotations.GuardedBy; 89import com.android.internal.annotations.VisibleForTesting; 90import com.android.internal.app.IAppOpsService; 91import com.android.internal.logging.MetricsLogger; 92import com.android.internal.util.FastXmlSerializer; 93import com.android.internal.util.Preconditions; 94import com.android.internal.util.XmlUtils; 95import com.android.internal.widget.LockPatternUtils; 96import com.android.server.LocalServices; 97import com.android.server.LockGuard; 98import com.android.server.SystemService; 99import com.android.server.am.UserState; 100import com.android.server.storage.DeviceStorageMonitorInternal; 101 102import libcore.io.IoUtils; 103import libcore.util.Objects; 104 105import org.xmlpull.v1.XmlPullParser; 106import org.xmlpull.v1.XmlPullParserException; 107import org.xmlpull.v1.XmlSerializer; 108 109import java.io.BufferedOutputStream; 110import java.io.File; 111import java.io.FileDescriptor; 112import java.io.FileInputStream; 113import java.io.FileNotFoundException; 114import java.io.FileOutputStream; 115import java.io.InputStream; 116import java.io.OutputStream; 117import java.io.IOException; 118import java.io.PrintWriter; 119import java.nio.charset.StandardCharsets; 120import java.util.ArrayList; 121import java.util.Collections; 122import java.util.LinkedList; 123import java.util.List; 124 125/** 126 * Service for {@link UserManager}. 127 * 128 * Method naming convention: 129 * <ul> 130 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 131 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 132 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 133 * </ul> 134 */ 135public class UserManagerService extends IUserManager.Stub { 136 137 private static final String LOG_TAG = "UserManagerService"; 138 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 139 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 140 // Can be used for manual testing of id recycling 141 private static final boolean RELEASE_DELETED_USER_ID = false; // DO NOT SUBMIT WITH TRUE 142 143 private static final String TAG_NAME = "name"; 144 private static final String TAG_ACCOUNT = "account"; 145 private static final String ATTR_FLAGS = "flags"; 146 private static final String ATTR_ICON_PATH = "icon"; 147 private static final String ATTR_ID = "id"; 148 private static final String ATTR_CREATION_TIME = "created"; 149 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 150 private static final String ATTR_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint"; 151 private static final String ATTR_SERIAL_NO = "serialNumber"; 152 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 153 private static final String ATTR_PARTIAL = "partial"; 154 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 155 private static final String ATTR_USER_VERSION = "version"; 156 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 157 private static final String ATTR_PROFILE_BADGE = "profileBadge"; 158 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 159 private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; 160 private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; 161 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 162 private static final String TAG_USERS = "users"; 163 private static final String TAG_USER = "user"; 164 private static final String TAG_RESTRICTIONS = "restrictions"; 165 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 166 private static final String TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS = 167 "device_policy_global_restrictions"; 168 /** Legacy name for device owner id tag. */ 169 private static final String TAG_GLOBAL_RESTRICTION_OWNER_ID = "globalRestrictionOwnerUserId"; 170 private static final String TAG_DEVICE_OWNER_USER_ID = "deviceOwnerUserId"; 171 private static final String TAG_ENTRY = "entry"; 172 private static final String TAG_VALUE = "value"; 173 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 174 private static final String ATTR_KEY = "key"; 175 private static final String ATTR_VALUE_TYPE = "type"; 176 private static final String ATTR_MULTIPLE = "m"; 177 178 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 179 private static final String ATTR_TYPE_STRING = "s"; 180 private static final String ATTR_TYPE_BOOLEAN = "b"; 181 private static final String ATTR_TYPE_INTEGER = "i"; 182 private static final String ATTR_TYPE_BUNDLE = "B"; 183 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 184 185 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 186 private static final String USER_LIST_FILENAME = "userlist.xml"; 187 private static final String USER_PHOTO_FILENAME = "photo.png"; 188 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 189 190 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 191 private static final String XML_SUFFIX = ".xml"; 192 193 private static final int ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION = 194 UserInfo.FLAG_MANAGED_PROFILE 195 | UserInfo.FLAG_EPHEMERAL 196 | UserInfo.FLAG_RESTRICTED 197 | UserInfo.FLAG_GUEST 198 | UserInfo.FLAG_DEMO; 199 200 @VisibleForTesting 201 static final int MIN_USER_ID = 10; 202 // We need to keep process uid within Integer.MAX_VALUE. 203 @VisibleForTesting 204 static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 205 206 // Max size of the queue of recently removed users 207 @VisibleForTesting 208 static final int MAX_RECENTLY_REMOVED_IDS_SIZE = 100; 209 210 private static final int USER_VERSION = 7; 211 212 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 213 214 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 215 // without first making sure that the rest of the framework is prepared for it. 216 @VisibleForTesting 217 static final int MAX_MANAGED_PROFILES = 1; 218 219 static final int WRITE_USER_MSG = 1; 220 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 221 222 // Tron counters 223 private static final String TRON_GUEST_CREATED = "users_guest_created"; 224 private static final String TRON_USER_CREATED = "users_user_created"; 225 226 private final Context mContext; 227 private final PackageManagerService mPm; 228 private final Object mPackagesLock; 229 private final UserDataPreparer mUserDataPreparer; 230 // Short-term lock for internal state, when interaction/sync with PM is not required 231 private final Object mUsersLock = LockGuard.installNewLock(LockGuard.INDEX_USER); 232 private final Object mRestrictionsLock = new Object(); 233 234 private final Handler mHandler; 235 236 private final File mUsersDir; 237 private final File mUserListFile; 238 239 private static final IBinder mUserRestriconToken = new Binder(); 240 241 /** 242 * User-related information that is used for persisting to flash. Only UserInfo is 243 * directly exposed to other system apps. 244 */ 245 @VisibleForTesting 246 static class UserData { 247 // Basic user information and properties 248 UserInfo info; 249 // Account name used when there is a strong association between a user and an account 250 String account; 251 // Account information for seeding into a newly created user. This could also be 252 // used for login validation for an existing user, for updating their credentials. 253 // In the latter case, data may not need to be persisted as it is only valid for the 254 // current login session. 255 String seedAccountName; 256 String seedAccountType; 257 PersistableBundle seedAccountOptions; 258 // Whether to perist the seed account information to be available after a boot 259 boolean persistSeedData; 260 261 void clearSeedAccountData() { 262 seedAccountName = null; 263 seedAccountType = null; 264 seedAccountOptions = null; 265 persistSeedData = false; 266 } 267 } 268 269 @GuardedBy("mUsersLock") 270 private final SparseArray<UserData> mUsers = new SparseArray<>(); 271 272 /** 273 * User restrictions set via UserManager. This doesn't include restrictions set by 274 * device owner / profile owners. Only non-empty restriction bundles are stored. 275 * 276 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 277 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 278 * maybe shared between {@link #mBaseUserRestrictions} and 279 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 280 * (Otherwise we won't be able to detect what restrictions have changed in 281 * {@link #updateUserRestrictionsInternalLR}. 282 */ 283 @GuardedBy("mRestrictionsLock") 284 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 285 286 /** 287 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 288 * with device / profile owner restrictions. We'll initialize it lazily; use 289 * {@link #getEffectiveUserRestrictions} to access it. 290 * 291 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 292 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 293 * maybe shared between {@link #mBaseUserRestrictions} and 294 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 295 * (Otherwise we won't be able to detect what restrictions have changed in 296 * {@link #updateUserRestrictionsInternalLR}. 297 */ 298 @GuardedBy("mRestrictionsLock") 299 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 300 301 /** 302 * User restrictions that have already been applied in 303 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 304 * that have changed since the last 305 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 306 */ 307 @GuardedBy("mRestrictionsLock") 308 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 309 310 /** 311 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 312 * that should be applied to all users, including guests. Only non-empty restriction bundles are 313 * stored. 314 */ 315 @GuardedBy("mRestrictionsLock") 316 private final SparseArray<Bundle> mDevicePolicyGlobalUserRestrictions = new SparseArray<>(); 317 318 /** 319 * Id of the user that set global restrictions. 320 */ 321 @GuardedBy("mRestrictionsLock") 322 private int mDeviceOwnerUserId = UserHandle.USER_NULL; 323 324 /** 325 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 326 * for each user. Only non-empty restriction bundles are stored. 327 */ 328 @GuardedBy("mRestrictionsLock") 329 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 330 331 @GuardedBy("mGuestRestrictions") 332 private final Bundle mGuestRestrictions = new Bundle(); 333 334 /** 335 * Set of user IDs being actively removed. Removed IDs linger in this set 336 * for several seconds to work around a VFS caching issue. 337 * Use {@link #addRemovingUserIdLocked(int)} to add elements to this array 338 */ 339 @GuardedBy("mUsersLock") 340 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 341 342 /** 343 * Queue of recently removed userIds. Used for recycling of userIds 344 */ 345 @GuardedBy("mUsersLock") 346 private final LinkedList<Integer> mRecentlyRemovedIds = new LinkedList<>(); 347 348 @GuardedBy("mUsersLock") 349 private int[] mUserIds; 350 @GuardedBy("mPackagesLock") 351 private int mNextSerialNumber; 352 private int mUserVersion = 0; 353 354 private IAppOpsService mAppOpsService; 355 356 private final LocalService mLocalService; 357 358 @GuardedBy("mUsersLock") 359 private boolean mIsDeviceManaged; 360 361 @GuardedBy("mUsersLock") 362 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 363 364 @GuardedBy("mUserRestrictionsListeners") 365 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 366 new ArrayList<>(); 367 368 private final LockPatternUtils mLockPatternUtils; 369 370 private final String ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK = 371 "com.android.server.pm.DISABLE_QUIET_MODE_AFTER_UNLOCK"; 372 373 private final BroadcastReceiver mDisableQuietModeCallback = new BroadcastReceiver() { 374 @Override 375 public void onReceive(Context context, Intent intent) { 376 if (ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK.equals(intent.getAction())) { 377 final IntentSender target = intent.getParcelableExtra(Intent.EXTRA_INTENT); 378 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_ID, 0); 379 setQuietModeEnabled(userHandle, false); 380 if (target != null) { 381 try { 382 mContext.startIntentSender(target, null, 0, 0, 0); 383 } catch (IntentSender.SendIntentException e) { 384 /* ignore */ 385 } 386 } 387 } 388 } 389 }; 390 391 /** 392 * Whether all users should be created ephemeral. 393 */ 394 @GuardedBy("mUsersLock") 395 private boolean mForceEphemeralUsers; 396 397 @GuardedBy("mUserStates") 398 private final SparseIntArray mUserStates = new SparseIntArray(); 399 400 private static UserManagerService sInstance; 401 402 public static UserManagerService getInstance() { 403 synchronized (UserManagerService.class) { 404 return sInstance; 405 } 406 } 407 408 public static class LifeCycle extends SystemService { 409 410 private UserManagerService mUms; 411 412 /** 413 * @param context 414 */ 415 public LifeCycle(Context context) { 416 super(context); 417 } 418 419 @Override 420 public void onStart() { 421 mUms = UserManagerService.getInstance(); 422 publishBinderService(Context.USER_SERVICE, mUms); 423 } 424 425 @Override 426 public void onBootPhase(int phase) { 427 if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) { 428 mUms.cleanupPartialUsers(); 429 } 430 } 431 } 432 433 // TODO b/28848102 Add support for test dependencies injection 434 @VisibleForTesting 435 UserManagerService(Context context) { 436 this(context, null, null, new Object(), context.getCacheDir()); 437 } 438 439 /** 440 * Called by package manager to create the service. This is closely 441 * associated with the package manager, and the given lock is the 442 * package manager's own lock. 443 */ 444 UserManagerService(Context context, PackageManagerService pm, UserDataPreparer userDataPreparer, 445 Object packagesLock) { 446 this(context, pm, userDataPreparer, packagesLock, Environment.getDataDirectory()); 447 } 448 449 private UserManagerService(Context context, PackageManagerService pm, 450 UserDataPreparer userDataPreparer, Object packagesLock, File dataDir) { 451 mContext = context; 452 mPm = pm; 453 mPackagesLock = packagesLock; 454 mHandler = new MainHandler(); 455 mUserDataPreparer = userDataPreparer; 456 synchronized (mPackagesLock) { 457 mUsersDir = new File(dataDir, USER_INFO_DIR); 458 mUsersDir.mkdirs(); 459 // Make zeroth user directory, for services to migrate their files to that location 460 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 461 userZeroDir.mkdirs(); 462 FileUtils.setPermissions(mUsersDir.toString(), 463 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 464 -1, -1); 465 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 466 initDefaultGuestRestrictions(); 467 readUserListLP(); 468 sInstance = this; 469 } 470 mLocalService = new LocalService(); 471 LocalServices.addService(UserManagerInternal.class, mLocalService); 472 mLockPatternUtils = new LockPatternUtils(mContext); 473 mUserStates.put(UserHandle.USER_SYSTEM, UserState.STATE_BOOTING); 474 } 475 476 void systemReady() { 477 mAppOpsService = IAppOpsService.Stub.asInterface( 478 ServiceManager.getService(Context.APP_OPS_SERVICE)); 479 480 synchronized (mRestrictionsLock) { 481 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 482 } 483 484 UserInfo currentGuestUser = findCurrentGuestUser(); 485 if (currentGuestUser != null && !hasUserRestriction( 486 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 487 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 488 // to it, in case this guest was created in a previous version where this 489 // user restriction was not a default guest restriction. 490 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 491 } 492 493 mContext.registerReceiver(mDisableQuietModeCallback, 494 new IntentFilter(ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK), 495 null, mHandler); 496 } 497 498 void cleanupPartialUsers() { 499 // Prune out any partially created, partially removed and ephemeral users. 500 ArrayList<UserInfo> partials = new ArrayList<>(); 501 synchronized (mUsersLock) { 502 final int userSize = mUsers.size(); 503 for (int i = 0; i < userSize; i++) { 504 UserInfo ui = mUsers.valueAt(i).info; 505 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 506 partials.add(ui); 507 addRemovingUserIdLocked(ui.id); 508 ui.partial = true; 509 } 510 } 511 } 512 final int partialsSize = partials.size(); 513 for (int i = 0; i < partialsSize; i++) { 514 UserInfo ui = partials.get(i); 515 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 516 + " (name=" + ui.name + ")"); 517 removeUserState(ui.id); 518 } 519 } 520 521 @Override 522 public String getUserAccount(int userId) { 523 checkManageUserAndAcrossUsersFullPermission("get user account"); 524 synchronized (mUsersLock) { 525 return mUsers.get(userId).account; 526 } 527 } 528 529 @Override 530 public void setUserAccount(int userId, String accountName) { 531 checkManageUserAndAcrossUsersFullPermission("set user account"); 532 UserData userToUpdate = null; 533 synchronized (mPackagesLock) { 534 synchronized (mUsersLock) { 535 final UserData userData = mUsers.get(userId); 536 if (userData == null) { 537 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 538 return; 539 } 540 String currentAccount = userData.account; 541 if (!Objects.equal(currentAccount, accountName)) { 542 userData.account = accountName; 543 userToUpdate = userData; 544 } 545 } 546 547 if (userToUpdate != null) { 548 writeUserLP(userToUpdate); 549 } 550 } 551 } 552 553 @Override 554 public UserInfo getPrimaryUser() { 555 checkManageUsersPermission("query users"); 556 synchronized (mUsersLock) { 557 final int userSize = mUsers.size(); 558 for (int i = 0; i < userSize; i++) { 559 UserInfo ui = mUsers.valueAt(i).info; 560 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 561 return ui; 562 } 563 } 564 } 565 return null; 566 } 567 568 @Override 569 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 570 checkManageOrCreateUsersPermission("query users"); 571 synchronized (mUsersLock) { 572 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 573 final int userSize = mUsers.size(); 574 for (int i = 0; i < userSize; i++) { 575 UserInfo ui = mUsers.valueAt(i).info; 576 if (ui.partial) { 577 continue; 578 } 579 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 580 users.add(userWithName(ui)); 581 } 582 } 583 return users; 584 } 585 } 586 587 @Override 588 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 589 boolean returnFullInfo = true; 590 if (userId != UserHandle.getCallingUserId()) { 591 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 592 } else { 593 returnFullInfo = hasManageUsersPermission(); 594 } 595 final long ident = Binder.clearCallingIdentity(); 596 try { 597 synchronized (mUsersLock) { 598 return getProfilesLU(userId, enabledOnly, returnFullInfo); 599 } 600 } finally { 601 Binder.restoreCallingIdentity(ident); 602 } 603 } 604 605 @Override 606 public int[] getProfileIds(int userId, boolean enabledOnly) { 607 if (userId != UserHandle.getCallingUserId()) { 608 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 609 } 610 final long ident = Binder.clearCallingIdentity(); 611 try { 612 synchronized (mUsersLock) { 613 return getProfileIdsLU(userId, enabledOnly).toArray(); 614 } 615 } finally { 616 Binder.restoreCallingIdentity(ident); 617 } 618 } 619 620 /** Assume permissions already checked and caller's identity cleared */ 621 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 622 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 623 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 624 for (int i = 0; i < profileIds.size(); i++) { 625 int profileId = profileIds.get(i); 626 UserInfo userInfo = mUsers.get(profileId).info; 627 // If full info is not required - clear PII data to prevent 3P apps from reading it 628 if (!fullInfo) { 629 userInfo = new UserInfo(userInfo); 630 userInfo.name = null; 631 userInfo.iconPath = null; 632 } else { 633 userInfo = userWithName(userInfo); 634 } 635 users.add(userInfo); 636 } 637 return users; 638 } 639 640 /** 641 * Assume permissions already checked and caller's identity cleared 642 */ 643 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 644 UserInfo user = getUserInfoLU(userId); 645 IntArray result = new IntArray(mUsers.size()); 646 if (user == null) { 647 // Probably a dying user 648 return result; 649 } 650 final int userSize = mUsers.size(); 651 for (int i = 0; i < userSize; i++) { 652 UserInfo profile = mUsers.valueAt(i).info; 653 if (!isProfileOf(user, profile)) { 654 continue; 655 } 656 if (enabledOnly && !profile.isEnabled()) { 657 continue; 658 } 659 if (mRemovingUserIds.get(profile.id)) { 660 continue; 661 } 662 if (profile.partial) { 663 continue; 664 } 665 result.add(profile.id); 666 } 667 return result; 668 } 669 670 @Override 671 public int getCredentialOwnerProfile(int userHandle) { 672 checkManageUsersPermission("get the credential owner"); 673 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 674 synchronized (mUsersLock) { 675 UserInfo profileParent = getProfileParentLU(userHandle); 676 if (profileParent != null) { 677 return profileParent.id; 678 } 679 } 680 } 681 682 return userHandle; 683 } 684 685 @Override 686 public boolean isSameProfileGroup(int userId, int otherUserId) { 687 if (userId == otherUserId) return true; 688 checkManageUsersPermission("check if in the same profile group"); 689 return isSameProfileGroupNoChecks(userId, otherUserId); 690 } 691 692 private boolean isSameProfileGroupNoChecks(int userId, int otherUserId) { 693 synchronized (mUsersLock) { 694 UserInfo userInfo = getUserInfoLU(userId); 695 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 696 return false; 697 } 698 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 699 if (otherUserInfo == null 700 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 701 return false; 702 } 703 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 704 } 705 } 706 707 @Override 708 public UserInfo getProfileParent(int userHandle) { 709 checkManageUsersPermission("get the profile parent"); 710 synchronized (mUsersLock) { 711 return getProfileParentLU(userHandle); 712 } 713 } 714 715 private UserInfo getProfileParentLU(int userHandle) { 716 UserInfo profile = getUserInfoLU(userHandle); 717 if (profile == null) { 718 return null; 719 } 720 int parentUserId = profile.profileGroupId; 721 if (parentUserId == userHandle || parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 722 return null; 723 } else { 724 return getUserInfoLU(parentUserId); 725 } 726 } 727 728 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 729 return user.id == profile.id || 730 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 731 && user.profileGroupId == profile.profileGroupId); 732 } 733 734 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 735 UserHandle parentHandle, boolean inQuietMode) { 736 Intent intent = new Intent(); 737 if (inQuietMode) { 738 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 739 } else { 740 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 741 } 742 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 743 intent.putExtra(Intent.EXTRA_USER, profileHandle); 744 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 745 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 746 mContext.sendBroadcastAsUser(intent, parentHandle); 747 } 748 749 @Override 750 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { 751 checkManageUsersPermission("silence profile"); 752 boolean changed = false; 753 UserInfo profile, parent; 754 synchronized (mPackagesLock) { 755 synchronized (mUsersLock) { 756 profile = getUserInfoLU(userHandle); 757 parent = getProfileParentLU(userHandle); 758 759 } 760 if (profile == null || !profile.isManagedProfile()) { 761 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 762 } 763 if (profile.isQuietModeEnabled() != enableQuietMode) { 764 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 765 writeUserLP(getUserDataLU(profile.id)); 766 changed = true; 767 } 768 } 769 if (changed) { 770 long identity = Binder.clearCallingIdentity(); 771 try { 772 if (enableQuietMode) { 773 ActivityManager.getService().stopUser(userHandle, /* force */true, null); 774 LocalServices.getService(ActivityManagerInternal.class) 775 .killForegroundAppsForUser(userHandle); 776 } else { 777 ActivityManager.getService().startUserInBackground(userHandle); 778 } 779 } catch (RemoteException e) { 780 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 781 } finally { 782 Binder.restoreCallingIdentity(identity); 783 } 784 785 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 786 enableQuietMode); 787 } 788 } 789 790 @Override 791 public boolean isQuietModeEnabled(int userHandle) { 792 synchronized (mPackagesLock) { 793 UserInfo info; 794 synchronized (mUsersLock) { 795 info = getUserInfoLU(userHandle); 796 } 797 if (info == null || !info.isManagedProfile()) { 798 return false; 799 } 800 return info.isQuietModeEnabled(); 801 } 802 } 803 804 @Override 805 public boolean trySetQuietModeDisabled(int userHandle, IntentSender target) { 806 checkManageUsersPermission("silence profile"); 807 if (StorageManager.isUserKeyUnlocked(userHandle) 808 || !mLockPatternUtils.isSecure(userHandle)) { 809 // if the user is already unlocked, no need to show a profile challenge 810 setQuietModeEnabled(userHandle, false); 811 return true; 812 } 813 814 long identity = Binder.clearCallingIdentity(); 815 try { 816 // otherwise, we show a profile challenge to trigger decryption of the user 817 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 818 Context.KEYGUARD_SERVICE); 819 // We should use userHandle not credentialOwnerUserId here, as even if it is unified 820 // lock, confirm screenlock page will know and show personal challenge, and unlock 821 // work profile when personal challenge is correct 822 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 823 userHandle); 824 if (unlockIntent == null) { 825 return false; 826 } 827 final Intent callBackIntent = new Intent( 828 ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK); 829 if (target != null) { 830 callBackIntent.putExtra(Intent.EXTRA_INTENT, target); 831 } 832 callBackIntent.putExtra(Intent.EXTRA_USER_ID, userHandle); 833 callBackIntent.setPackage(mContext.getPackageName()); 834 callBackIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 835 final PendingIntent pendingIntent = PendingIntent.getBroadcast( 836 mContext, 837 0, 838 callBackIntent, 839 PendingIntent.FLAG_CANCEL_CURRENT | 840 PendingIntent.FLAG_ONE_SHOT | 841 PendingIntent.FLAG_IMMUTABLE); 842 // After unlocking the challenge, it will disable quiet mode and run the original 843 // intentSender 844 unlockIntent.putExtra(Intent.EXTRA_INTENT, pendingIntent.getIntentSender()); 845 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 846 mContext.startActivity(unlockIntent); 847 } finally { 848 Binder.restoreCallingIdentity(identity); 849 } 850 return false; 851 } 852 853 @Override 854 public void setUserEnabled(int userId) { 855 checkManageUsersPermission("enable user"); 856 synchronized (mPackagesLock) { 857 UserInfo info; 858 synchronized (mUsersLock) { 859 info = getUserInfoLU(userId); 860 } 861 if (info != null && !info.isEnabled()) { 862 info.flags ^= UserInfo.FLAG_DISABLED; 863 writeUserLP(getUserDataLU(info.id)); 864 } 865 } 866 } 867 868 /** 869 * Evicts a user's CE key by stopping and restarting the user. 870 * 871 * The key is evicted automatically by the user controller when the user has stopped. 872 */ 873 @Override 874 public void evictCredentialEncryptionKey(@UserIdInt int userId) { 875 checkManageUsersPermission("evict CE key"); 876 final IActivityManager am = ActivityManagerNative.getDefault(); 877 final long identity = Binder.clearCallingIdentity(); 878 try { 879 am.restartUserInBackground(userId); 880 } catch (RemoteException re) { 881 throw re.rethrowAsRuntimeException(); 882 } finally { 883 Binder.restoreCallingIdentity(identity); 884 } 885 } 886 887 @Override 888 public UserInfo getUserInfo(int userId) { 889 checkManageOrCreateUsersPermission("query user"); 890 synchronized (mUsersLock) { 891 return userWithName(getUserInfoLU(userId)); 892 } 893 } 894 895 /** 896 * Returns a UserInfo object with the name filled in, for Owner, or the original 897 * if the name is already set. 898 */ 899 private UserInfo userWithName(UserInfo orig) { 900 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 901 UserInfo withName = new UserInfo(orig); 902 withName.name = getOwnerName(); 903 return withName; 904 } else { 905 return orig; 906 } 907 } 908 909 @Override 910 public int getManagedProfileBadge(@UserIdInt int userId) { 911 int callingUserId = UserHandle.getCallingUserId(); 912 if (callingUserId != userId && !hasManageUsersPermission()) { 913 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 914 throw new SecurityException( 915 "You need MANAGE_USERS permission to: check if specified user a " + 916 "managed profile outside your profile group"); 917 } 918 } 919 synchronized (mUsersLock) { 920 UserInfo userInfo = getUserInfoLU(userId); 921 return userInfo != null ? userInfo.profileBadge : 0; 922 } 923 } 924 925 @Override 926 public boolean isManagedProfile(int userId) { 927 int callingUserId = UserHandle.getCallingUserId(); 928 if (callingUserId != userId && !hasManageUsersPermission()) { 929 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 930 throw new SecurityException( 931 "You need MANAGE_USERS permission to: check if specified user a " + 932 "managed profile outside your profile group"); 933 } 934 } 935 synchronized (mUsersLock) { 936 UserInfo userInfo = getUserInfoLU(userId); 937 return userInfo != null && userInfo.isManagedProfile(); 938 } 939 } 940 941 @Override 942 public boolean isUserUnlockingOrUnlocked(int userId) { 943 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlockingOrUnlocked"); 944 return mLocalService.isUserUnlockingOrUnlocked(userId); 945 } 946 947 @Override 948 public boolean isUserUnlocked(int userId) { 949 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlocked"); 950 return mLocalService.isUserUnlockingOrUnlocked(userId); 951 } 952 953 @Override 954 public boolean isUserRunning(int userId) { 955 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserRunning"); 956 return mLocalService.isUserRunning(userId); 957 } 958 959 private void checkManageOrInteractPermIfCallerInOtherProfileGroup(int userId, String name) { 960 int callingUserId = UserHandle.getCallingUserId(); 961 if (callingUserId == userId || isSameProfileGroupNoChecks(callingUserId, userId) || 962 hasManageUsersPermission()) { 963 return; 964 } 965 if (ActivityManager.checkComponentPermission(Manifest.permission.INTERACT_ACROSS_USERS, 966 Binder.getCallingUid(), -1, true) != PackageManager.PERMISSION_GRANTED) { 967 throw new SecurityException("You need INTERACT_ACROSS_USERS or MANAGE_USERS permission " 968 + "to: check " + name); 969 } 970 } 971 972 @Override 973 public boolean isDemoUser(int userId) { 974 int callingUserId = UserHandle.getCallingUserId(); 975 if (callingUserId != userId && !hasManageUsersPermission()) { 976 throw new SecurityException("You need MANAGE_USERS permission to query if u=" + userId 977 + " is a demo user"); 978 } 979 synchronized (mUsersLock) { 980 UserInfo userInfo = getUserInfoLU(userId); 981 return userInfo != null && userInfo.isDemo(); 982 } 983 } 984 985 @Override 986 public boolean isRestricted() { 987 synchronized (mUsersLock) { 988 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 989 } 990 } 991 992 @Override 993 public boolean canHaveRestrictedProfile(int userId) { 994 checkManageUsersPermission("canHaveRestrictedProfile"); 995 synchronized (mUsersLock) { 996 final UserInfo userInfo = getUserInfoLU(userId); 997 if (userInfo == null || !userInfo.canHaveProfile()) { 998 return false; 999 } 1000 if (!userInfo.isAdmin()) { 1001 return false; 1002 } 1003 // restricted profile can be created if there is no DO set and the admin user has no PO; 1004 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 1005 } 1006 } 1007 1008 /* 1009 * Should be locked on mUsers before calling this. 1010 */ 1011 private UserInfo getUserInfoLU(int userId) { 1012 final UserData userData = mUsers.get(userId); 1013 // If it is partial and not in the process of being removed, return as unknown user. 1014 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 1015 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 1016 return null; 1017 } 1018 return userData != null ? userData.info : null; 1019 } 1020 1021 private UserData getUserDataLU(int userId) { 1022 final UserData userData = mUsers.get(userId); 1023 // If it is partial and not in the process of being removed, return as unknown user. 1024 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 1025 return null; 1026 } 1027 return userData; 1028 } 1029 1030 /** 1031 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 1032 * <p>No permissions checking or any addition checks are made</p> 1033 */ 1034 private UserInfo getUserInfoNoChecks(int userId) { 1035 synchronized (mUsersLock) { 1036 final UserData userData = mUsers.get(userId); 1037 return userData != null ? userData.info : null; 1038 } 1039 } 1040 1041 /** 1042 * Obtains {@link #mUsersLock} and return UserData from mUsers. 1043 * <p>No permissions checking or any addition checks are made</p> 1044 */ 1045 private UserData getUserDataNoChecks(int userId) { 1046 synchronized (mUsersLock) { 1047 return mUsers.get(userId); 1048 } 1049 } 1050 1051 /** Called by PackageManagerService */ 1052 public boolean exists(int userId) { 1053 return getUserInfoNoChecks(userId) != null; 1054 } 1055 1056 @Override 1057 public void setUserName(int userId, String name) { 1058 checkManageUsersPermission("rename users"); 1059 boolean changed = false; 1060 synchronized (mPackagesLock) { 1061 UserData userData = getUserDataNoChecks(userId); 1062 if (userData == null || userData.info.partial) { 1063 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 1064 return; 1065 } 1066 if (name != null && !name.equals(userData.info.name)) { 1067 userData.info.name = name; 1068 writeUserLP(userData); 1069 changed = true; 1070 } 1071 } 1072 if (changed) { 1073 sendUserInfoChangedBroadcast(userId); 1074 } 1075 } 1076 1077 @Override 1078 public void setUserIcon(int userId, Bitmap bitmap) { 1079 checkManageUsersPermission("update users"); 1080 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 1081 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 1082 return; 1083 } 1084 mLocalService.setUserIcon(userId, bitmap); 1085 } 1086 1087 1088 1089 private void sendUserInfoChangedBroadcast(int userId) { 1090 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 1091 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 1092 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1093 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 1094 } 1095 1096 @Override 1097 public ParcelFileDescriptor getUserIcon(int targetUserId) { 1098 String iconPath; 1099 synchronized (mPackagesLock) { 1100 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 1101 if (targetUserInfo == null || targetUserInfo.partial) { 1102 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 1103 return null; 1104 } 1105 1106 final int callingUserId = UserHandle.getCallingUserId(); 1107 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 1108 final int targetGroupId = targetUserInfo.profileGroupId; 1109 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 1110 && callingGroupId == targetGroupId); 1111 if ((callingUserId != targetUserId) && !sameGroup) { 1112 checkManageUsersPermission("get the icon of a user who is not related"); 1113 } 1114 1115 if (targetUserInfo.iconPath == null) { 1116 return null; 1117 } 1118 iconPath = targetUserInfo.iconPath; 1119 } 1120 1121 try { 1122 return ParcelFileDescriptor.open( 1123 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 1124 } catch (FileNotFoundException e) { 1125 Log.e(LOG_TAG, "Couldn't find icon file", e); 1126 } 1127 return null; 1128 } 1129 1130 public void makeInitialized(int userId) { 1131 checkManageUsersPermission("makeInitialized"); 1132 boolean scheduleWriteUser = false; 1133 UserData userData; 1134 synchronized (mUsersLock) { 1135 userData = mUsers.get(userId); 1136 if (userData == null || userData.info.partial) { 1137 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 1138 return; 1139 } 1140 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1141 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1142 scheduleWriteUser = true; 1143 } 1144 } 1145 if (scheduleWriteUser) { 1146 scheduleWriteUser(userData); 1147 } 1148 } 1149 1150 /** 1151 * If default guest restrictions haven't been initialized yet, add the basic 1152 * restrictions. 1153 */ 1154 private void initDefaultGuestRestrictions() { 1155 synchronized (mGuestRestrictions) { 1156 if (mGuestRestrictions.isEmpty()) { 1157 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 1158 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 1159 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 1160 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 1161 } 1162 } 1163 } 1164 1165 @Override 1166 public Bundle getDefaultGuestRestrictions() { 1167 checkManageUsersPermission("getDefaultGuestRestrictions"); 1168 synchronized (mGuestRestrictions) { 1169 return new Bundle(mGuestRestrictions); 1170 } 1171 } 1172 1173 @Override 1174 public void setDefaultGuestRestrictions(Bundle restrictions) { 1175 checkManageUsersPermission("setDefaultGuestRestrictions"); 1176 synchronized (mGuestRestrictions) { 1177 mGuestRestrictions.clear(); 1178 mGuestRestrictions.putAll(restrictions); 1179 } 1180 synchronized (mPackagesLock) { 1181 writeUserListLP(); 1182 } 1183 } 1184 1185 /** 1186 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions} 1187 */ 1188 private void setDevicePolicyUserRestrictionsInner(int userId, @Nullable Bundle restrictions, 1189 boolean isDeviceOwner, int cameraRestrictionScope) { 1190 final Bundle global = new Bundle(); 1191 final Bundle local = new Bundle(); 1192 1193 // Sort restrictions into local and global ensuring they don't overlap. 1194 UserRestrictionsUtils.sortToGlobalAndLocal(restrictions, isDeviceOwner, 1195 cameraRestrictionScope, global, local); 1196 1197 boolean globalChanged, localChanged; 1198 synchronized (mRestrictionsLock) { 1199 // Update global and local restrictions if they were changed. 1200 globalChanged = updateRestrictionsIfNeededLR( 1201 userId, global, mDevicePolicyGlobalUserRestrictions); 1202 localChanged = updateRestrictionsIfNeededLR( 1203 userId, local, mDevicePolicyLocalUserRestrictions); 1204 1205 if (isDeviceOwner) { 1206 // Remember the global restriction owner userId to be able to make a distinction 1207 // in getUserRestrictionSource on who set local policies. 1208 mDeviceOwnerUserId = userId; 1209 } else { 1210 if (mDeviceOwnerUserId == userId) { 1211 // When profile owner sets restrictions it passes null global bundle and we 1212 // reset global restriction owner userId. 1213 // This means this user used to have DO, but now the DO is gone and the user 1214 // instead has PO. 1215 mDeviceOwnerUserId = UserHandle.USER_NULL; 1216 } 1217 } 1218 } 1219 if (DBG) { 1220 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1221 + " global=" + global + (globalChanged ? " (changed)" : "") 1222 + " local=" + local + (localChanged ? " (changed)" : "") 1223 ); 1224 } 1225 // Don't call them within the mRestrictionsLock. 1226 synchronized (mPackagesLock) { 1227 if (localChanged || globalChanged) { 1228 writeUserLP(getUserDataNoChecks(userId)); 1229 } 1230 } 1231 1232 synchronized (mRestrictionsLock) { 1233 if (globalChanged) { 1234 applyUserRestrictionsForAllUsersLR(); 1235 } else if (localChanged) { 1236 applyUserRestrictionsLR(userId); 1237 } 1238 } 1239 } 1240 1241 /** 1242 * Updates restriction bundle for a given user in a given restriction array. If new bundle is 1243 * empty, record is removed from the array. 1244 * @return whether restrictions bundle is different from the old one. 1245 */ 1246 private boolean updateRestrictionsIfNeededLR(int userId, @Nullable Bundle restrictions, 1247 SparseArray<Bundle> restrictionsArray) { 1248 final boolean changed = 1249 !UserRestrictionsUtils.areEqual(restrictionsArray.get(userId), restrictions); 1250 if (changed) { 1251 if (!UserRestrictionsUtils.isEmpty(restrictions)) { 1252 restrictionsArray.put(userId, restrictions); 1253 } else { 1254 restrictionsArray.delete(userId); 1255 } 1256 } 1257 return changed; 1258 } 1259 1260 @GuardedBy("mRestrictionsLock") 1261 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1262 final Bundle baseRestrictions = 1263 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1264 final Bundle global = UserRestrictionsUtils.mergeAll(mDevicePolicyGlobalUserRestrictions); 1265 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1266 1267 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1268 // Common case first. 1269 return baseRestrictions; 1270 } 1271 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1272 UserRestrictionsUtils.merge(effective, global); 1273 UserRestrictionsUtils.merge(effective, local); 1274 1275 return effective; 1276 } 1277 1278 @GuardedBy("mRestrictionsLock") 1279 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1280 if (DBG) { 1281 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1282 } 1283 mCachedEffectiveUserRestrictions.remove(userId); 1284 } 1285 1286 private Bundle getEffectiveUserRestrictions(int userId) { 1287 synchronized (mRestrictionsLock) { 1288 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1289 if (restrictions == null) { 1290 restrictions = computeEffectiveUserRestrictionsLR(userId); 1291 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1292 } 1293 return restrictions; 1294 } 1295 } 1296 1297 /** @return a specific user restriction that's in effect currently. */ 1298 @Override 1299 public boolean hasUserRestriction(String restrictionKey, int userId) { 1300 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1301 return false; 1302 } 1303 Bundle restrictions = getEffectiveUserRestrictions(userId); 1304 return restrictions != null && restrictions.getBoolean(restrictionKey); 1305 } 1306 1307 /** 1308 * @hide 1309 * 1310 * Returns who set a user restriction on a user. 1311 * Requires {@link android.Manifest.permission#MANAGE_USERS} permission. 1312 * @param restrictionKey the string key representing the restriction 1313 * @param userId the id of the user for whom to retrieve the restrictions. 1314 * @return The source of user restriction. Any combination of 1315 * {@link UserManager#RESTRICTION_NOT_SET}, 1316 * {@link UserManager#RESTRICTION_SOURCE_SYSTEM}, 1317 * {@link UserManager#RESTRICTION_SOURCE_DEVICE_OWNER} 1318 * and {@link UserManager#RESTRICTION_SOURCE_PROFILE_OWNER} 1319 */ 1320 @Override 1321 public int getUserRestrictionSource(String restrictionKey, int userId) { 1322 List<EnforcingUser> enforcingUsers = getUserRestrictionSources(restrictionKey, userId); 1323 // Get "bitwise or" of restriction sources for all enforcing users. 1324 int result = UserManager.RESTRICTION_NOT_SET; 1325 for (int i = enforcingUsers.size() - 1; i >= 0; i--) { 1326 result |= enforcingUsers.get(i).getUserRestrictionSource(); 1327 } 1328 return result; 1329 } 1330 1331 @Override 1332 public List<EnforcingUser> getUserRestrictionSources( 1333 String restrictionKey, @UserIdInt int userId) { 1334 checkManageUsersPermission("getUserRestrictionSource"); 1335 1336 // Shortcut for the most common case 1337 if (!hasUserRestriction(restrictionKey, userId)) { 1338 return Collections.emptyList(); 1339 } 1340 1341 final List<EnforcingUser> result = new ArrayList<>(); 1342 1343 // Check if it is base restriction. 1344 if (hasBaseUserRestriction(restrictionKey, userId)) { 1345 result.add(new EnforcingUser( 1346 UserHandle.USER_NULL, UserManager.RESTRICTION_SOURCE_SYSTEM)); 1347 } 1348 1349 synchronized (mRestrictionsLock) { 1350 // Check if it is set by profile owner. 1351 Bundle profileOwnerRestrictions = mDevicePolicyLocalUserRestrictions.get(userId); 1352 if (UserRestrictionsUtils.contains(profileOwnerRestrictions, restrictionKey)) { 1353 result.add(getEnforcingUserLocked(userId)); 1354 } 1355 1356 // Iterate over all users who enforce global restrictions. 1357 for (int i = mDevicePolicyGlobalUserRestrictions.size() - 1; i >= 0; i--) { 1358 Bundle globalRestrictions = mDevicePolicyGlobalUserRestrictions.valueAt(i); 1359 int profileUserId = mDevicePolicyGlobalUserRestrictions.keyAt(i); 1360 if (UserRestrictionsUtils.contains(globalRestrictions, restrictionKey)) { 1361 result.add(getEnforcingUserLocked(profileUserId)); 1362 } 1363 } 1364 } 1365 return result; 1366 } 1367 1368 private EnforcingUser getEnforcingUserLocked(@UserIdInt int userId) { 1369 int source = mDeviceOwnerUserId == userId ? UserManager.RESTRICTION_SOURCE_DEVICE_OWNER 1370 : UserManager.RESTRICTION_SOURCE_PROFILE_OWNER; 1371 return new EnforcingUser(userId, source); 1372 } 1373 1374 /** 1375 * @return UserRestrictions that are in effect currently. This always returns a new 1376 * {@link Bundle}. 1377 */ 1378 @Override 1379 public Bundle getUserRestrictions(int userId) { 1380 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1381 } 1382 1383 @Override 1384 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1385 checkManageUsersPermission("hasBaseUserRestriction"); 1386 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1387 return false; 1388 } 1389 synchronized (mRestrictionsLock) { 1390 Bundle bundle = mBaseUserRestrictions.get(userId); 1391 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1392 } 1393 } 1394 1395 @Override 1396 public void setUserRestriction(String key, boolean value, int userId) { 1397 checkManageUsersPermission("setUserRestriction"); 1398 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1399 return; 1400 } 1401 synchronized (mRestrictionsLock) { 1402 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1403 // a copy. 1404 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1405 mBaseUserRestrictions.get(userId)); 1406 newRestrictions.putBoolean(key, value); 1407 1408 updateUserRestrictionsInternalLR(newRestrictions, userId); 1409 } 1410 } 1411 1412 /** 1413 * Optionally updating user restrictions, calculate the effective user restrictions and also 1414 * propagate to other services and system settings. 1415 * 1416 * @param newBaseRestrictions User restrictions to set. 1417 * If null, will not update user restrictions and only does the propagation. 1418 * @param userId target user ID. 1419 */ 1420 @GuardedBy("mRestrictionsLock") 1421 private void updateUserRestrictionsInternalLR( 1422 @Nullable Bundle newBaseRestrictions, int userId) { 1423 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1424 mAppliedUserRestrictions.get(userId)); 1425 1426 // Update base restrictions. 1427 if (newBaseRestrictions != null) { 1428 // If newBaseRestrictions == the current one, it's probably a bug. 1429 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1430 1431 Preconditions.checkState(prevBaseRestrictions != newBaseRestrictions); 1432 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1433 != newBaseRestrictions); 1434 1435 if (updateRestrictionsIfNeededLR(userId, newBaseRestrictions, mBaseUserRestrictions)) { 1436 scheduleWriteUser(getUserDataNoChecks(userId)); 1437 } 1438 } 1439 1440 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1441 1442 mCachedEffectiveUserRestrictions.put(userId, effective); 1443 1444 // Apply the new restrictions. 1445 if (DBG) { 1446 debug("Applying user restrictions: userId=" + userId 1447 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1448 } 1449 1450 if (mAppOpsService != null) { // We skip it until system-ready. 1451 mHandler.post(new Runnable() { 1452 @Override 1453 public void run() { 1454 try { 1455 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1456 } catch (RemoteException e) { 1457 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1458 } 1459 } 1460 }); 1461 } 1462 1463 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1464 1465 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1466 } 1467 1468 private void propagateUserRestrictionsLR(final int userId, 1469 Bundle newRestrictions, Bundle prevRestrictions) { 1470 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1471 // actually, but we still need some kind of synchronization otherwise we might end up 1472 // calling listeners out-of-order, thus "LR". 1473 1474 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1475 return; 1476 } 1477 1478 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1479 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1480 1481 mHandler.post(new Runnable() { 1482 @Override 1483 public void run() { 1484 UserRestrictionsUtils.applyUserRestrictions( 1485 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1486 1487 final UserRestrictionsListener[] listeners; 1488 synchronized (mUserRestrictionsListeners) { 1489 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1490 mUserRestrictionsListeners.toArray(listeners); 1491 } 1492 for (int i = 0; i < listeners.length; i++) { 1493 listeners[i].onUserRestrictionsChanged(userId, 1494 newRestrictionsFinal, prevRestrictionsFinal); 1495 } 1496 } 1497 }); 1498 } 1499 1500 // Package private for the inner class. 1501 void applyUserRestrictionsLR(int userId) { 1502 updateUserRestrictionsInternalLR(null, userId); 1503 } 1504 1505 @GuardedBy("mRestrictionsLock") 1506 // Package private for the inner class. 1507 void applyUserRestrictionsForAllUsersLR() { 1508 if (DBG) { 1509 debug("applyUserRestrictionsForAllUsersLR"); 1510 } 1511 // First, invalidate all cached values. 1512 mCachedEffectiveUserRestrictions.clear(); 1513 1514 // We don't want to call into ActivityManagerService while taking a lock, so we'll call 1515 // it on a handler. 1516 final Runnable r = new Runnable() { 1517 @Override 1518 public void run() { 1519 // Then get the list of running users. 1520 final int[] runningUsers; 1521 try { 1522 runningUsers = ActivityManager.getService().getRunningUserIds(); 1523 } catch (RemoteException e) { 1524 Log.w(LOG_TAG, "Unable to access ActivityManagerService"); 1525 return; 1526 } 1527 // Then re-calculate the effective restrictions and apply, only for running users. 1528 // It's okay if a new user has started after the getRunningUserIds() call, 1529 // because we'll do the same thing (re-calculate the restrictions and apply) 1530 // when we start a user. 1531 synchronized (mRestrictionsLock) { 1532 for (int i = 0; i < runningUsers.length; i++) { 1533 applyUserRestrictionsLR(runningUsers[i]); 1534 } 1535 } 1536 } 1537 }; 1538 mHandler.post(r); 1539 } 1540 1541 /** 1542 * Check if we've hit the limit of how many users can be created. 1543 */ 1544 private boolean isUserLimitReached() { 1545 int count; 1546 synchronized (mUsersLock) { 1547 count = getAliveUsersExcludingGuestsCountLU(); 1548 } 1549 return count >= UserManager.getMaxSupportedUsers(); 1550 } 1551 1552 @Override 1553 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1554 checkManageUsersPermission("check if more managed profiles can be added."); 1555 if (ActivityManager.isLowRamDeviceStatic()) { 1556 return false; 1557 } 1558 if (!mContext.getPackageManager().hasSystemFeature( 1559 PackageManager.FEATURE_MANAGED_USERS)) { 1560 return false; 1561 } 1562 // Limit number of managed profiles that can be created 1563 final int managedProfilesCount = getProfiles(userId, false).size() - 1; 1564 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1565 if (managedProfilesCount - profilesRemovedCount >= getMaxManagedProfiles()) { 1566 return false; 1567 } 1568 synchronized(mUsersLock) { 1569 UserInfo userInfo = getUserInfoLU(userId); 1570 if (userInfo == null || !userInfo.canHaveProfile()) { 1571 return false; 1572 } 1573 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1574 - profilesRemovedCount; 1575 // We allow creating a managed profile in the special case where there is only one user. 1576 return usersCountAfterRemoving == 1 1577 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1578 } 1579 } 1580 1581 private int getAliveUsersExcludingGuestsCountLU() { 1582 int aliveUserCount = 0; 1583 final int totalUserCount = mUsers.size(); 1584 // Skip over users being removed 1585 for (int i = 0; i < totalUserCount; i++) { 1586 UserInfo user = mUsers.valueAt(i).info; 1587 if (!mRemovingUserIds.get(user.id) && !user.isGuest()) { 1588 aliveUserCount++; 1589 } 1590 } 1591 return aliveUserCount; 1592 } 1593 1594 /** 1595 * Enforces that only the system UID or root's UID or apps that have the 1596 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1597 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1598 * permissions can make certain calls to the UserManager. 1599 * 1600 * @param message used as message if SecurityException is thrown 1601 * @throws SecurityException if the caller does not have enough privilege. 1602 */ 1603 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1604 final int uid = Binder.getCallingUid(); 1605 if (uid != Process.SYSTEM_UID && uid != 0 1606 && ActivityManager.checkComponentPermission( 1607 Manifest.permission.MANAGE_USERS, 1608 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1609 && ActivityManager.checkComponentPermission( 1610 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1611 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1612 throw new SecurityException( 1613 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1614 + message); 1615 } 1616 } 1617 1618 /** 1619 * Enforces that only the system UID or root's UID or apps that have the 1620 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1621 * permission can make certain calls to the UserManager. 1622 * 1623 * @param message used as message if SecurityException is thrown 1624 * @throws SecurityException if the caller is not system or root 1625 * @see #hasManageUsersPermission() 1626 */ 1627 private static final void checkManageUsersPermission(String message) { 1628 if (!hasManageUsersPermission()) { 1629 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1630 } 1631 } 1632 1633 /** 1634 * Enforces that only the system UID or root's UID or apps that have the 1635 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1636 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} 1637 * can make certain calls to the UserManager. 1638 * 1639 * @param message used as message if SecurityException is thrown 1640 * @throws SecurityException if the caller is not system or root 1641 * @see #hasManageOrCreateUsersPermission() 1642 */ 1643 private static final void checkManageOrCreateUsersPermission(String message) { 1644 if (!hasManageOrCreateUsersPermission()) { 1645 throw new SecurityException( 1646 "You either need MANAGE_USERS or CREATE_USERS permission to: " + message); 1647 } 1648 } 1649 1650 /** 1651 * Similar to {@link #checkManageOrCreateUsersPermission(String)} but when the caller is tries 1652 * to create user/profiles other than what is allowed for 1653 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} permission, then it will only 1654 * allow callers with {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} permission. 1655 */ 1656 private static final void checkManageOrCreateUsersPermission(int creationFlags) { 1657 if ((creationFlags & ~ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION) == 0) { 1658 if (!hasManageOrCreateUsersPermission()) { 1659 throw new SecurityException("You either need MANAGE_USERS or CREATE_USERS " 1660 + "permission to create an user with flags: " + creationFlags); 1661 } 1662 } else if (!hasManageUsersPermission()) { 1663 throw new SecurityException("You need MANAGE_USERS permission to create an user " 1664 + " with flags: " + creationFlags); 1665 } 1666 } 1667 1668 /** 1669 * @return whether the calling UID is system UID or root's UID or the calling app has the 1670 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1671 */ 1672 private static final boolean hasManageUsersPermission() { 1673 final int callingUid = Binder.getCallingUid(); 1674 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1675 || callingUid == Process.ROOT_UID 1676 || ActivityManager.checkComponentPermission( 1677 android.Manifest.permission.MANAGE_USERS, 1678 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1679 } 1680 1681 /** 1682 * @return whether the calling UID is system UID or root's UID or the calling app has the 1683 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1684 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS}. 1685 */ 1686 private static final boolean hasManageOrCreateUsersPermission() { 1687 final int callingUid = Binder.getCallingUid(); 1688 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1689 || callingUid == Process.ROOT_UID 1690 || ActivityManager.checkComponentPermission( 1691 android.Manifest.permission.MANAGE_USERS, 1692 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED 1693 || ActivityManager.checkComponentPermission( 1694 android.Manifest.permission.CREATE_USERS, 1695 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1696 } 1697 1698 /** 1699 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1700 * UserManager. 1701 * 1702 * @param message used as message if SecurityException is thrown 1703 * @throws SecurityException if the caller is not system or root 1704 */ 1705 private static void checkSystemOrRoot(String message) { 1706 final int uid = Binder.getCallingUid(); 1707 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1708 throw new SecurityException("Only system may: " + message); 1709 } 1710 } 1711 1712 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1713 try { 1714 File dir = new File(mUsersDir, Integer.toString(info.id)); 1715 File file = new File(dir, USER_PHOTO_FILENAME); 1716 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1717 if (!dir.exists()) { 1718 dir.mkdir(); 1719 FileUtils.setPermissions( 1720 dir.getPath(), 1721 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1722 -1, -1); 1723 } 1724 FileOutputStream os; 1725 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1726 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1727 info.iconPath = file.getAbsolutePath(); 1728 } 1729 try { 1730 os.close(); 1731 } catch (IOException ioe) { 1732 // What the ... ! 1733 } 1734 tmp.delete(); 1735 } catch (FileNotFoundException e) { 1736 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1737 } 1738 } 1739 1740 /** 1741 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1742 * cache it elsewhere. 1743 * @return the array of user ids. 1744 */ 1745 public int[] getUserIds() { 1746 synchronized (mUsersLock) { 1747 return mUserIds; 1748 } 1749 } 1750 1751 private void readUserListLP() { 1752 if (!mUserListFile.exists()) { 1753 fallbackToSingleUserLP(); 1754 return; 1755 } 1756 FileInputStream fis = null; 1757 AtomicFile userListFile = new AtomicFile(mUserListFile); 1758 try { 1759 fis = userListFile.openRead(); 1760 XmlPullParser parser = Xml.newPullParser(); 1761 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1762 int type; 1763 while ((type = parser.next()) != XmlPullParser.START_TAG 1764 && type != XmlPullParser.END_DOCUMENT) { 1765 // Skip 1766 } 1767 1768 if (type != XmlPullParser.START_TAG) { 1769 Slog.e(LOG_TAG, "Unable to read user list"); 1770 fallbackToSingleUserLP(); 1771 return; 1772 } 1773 1774 mNextSerialNumber = -1; 1775 if (parser.getName().equals(TAG_USERS)) { 1776 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1777 if (lastSerialNumber != null) { 1778 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1779 } 1780 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1781 if (versionNumber != null) { 1782 mUserVersion = Integer.parseInt(versionNumber); 1783 } 1784 } 1785 1786 // Pre-O global user restriction were stored as a single bundle (as opposed to per-user 1787 // currently), take care of it in case of upgrade. 1788 Bundle oldDevicePolicyGlobalUserRestrictions = null; 1789 1790 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1791 if (type == XmlPullParser.START_TAG) { 1792 final String name = parser.getName(); 1793 if (name.equals(TAG_USER)) { 1794 String id = parser.getAttributeValue(null, ATTR_ID); 1795 1796 UserData userData = readUserLP(Integer.parseInt(id)); 1797 1798 if (userData != null) { 1799 synchronized (mUsersLock) { 1800 mUsers.put(userData.info.id, userData); 1801 if (mNextSerialNumber < 0 1802 || mNextSerialNumber <= userData.info.id) { 1803 mNextSerialNumber = userData.info.id + 1; 1804 } 1805 } 1806 } 1807 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1808 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1809 && type != XmlPullParser.END_TAG) { 1810 if (type == XmlPullParser.START_TAG) { 1811 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1812 synchronized (mGuestRestrictions) { 1813 UserRestrictionsUtils 1814 .readRestrictions(parser, mGuestRestrictions); 1815 } 1816 } 1817 break; 1818 } 1819 } 1820 } else if (name.equals(TAG_DEVICE_OWNER_USER_ID) 1821 // Legacy name, should only be encountered when upgrading from pre-O. 1822 || name.equals(TAG_GLOBAL_RESTRICTION_OWNER_ID)) { 1823 String ownerUserId = parser.getAttributeValue(null, ATTR_ID); 1824 if (ownerUserId != null) { 1825 mDeviceOwnerUserId = Integer.parseInt(ownerUserId); 1826 } 1827 } else if (name.equals(TAG_DEVICE_POLICY_RESTRICTIONS)) { 1828 // Should only happen when upgrading from pre-O (version < 7). 1829 oldDevicePolicyGlobalUserRestrictions = 1830 UserRestrictionsUtils.readRestrictions(parser); 1831 } 1832 } 1833 } 1834 1835 updateUserIds(); 1836 upgradeIfNecessaryLP(oldDevicePolicyGlobalUserRestrictions); 1837 } catch (IOException | XmlPullParserException e) { 1838 fallbackToSingleUserLP(); 1839 } finally { 1840 IoUtils.closeQuietly(fis); 1841 } 1842 } 1843 1844 /** 1845 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1846 * @param oldGlobalUserRestrictions Pre-O global device policy restrictions. 1847 */ 1848 private void upgradeIfNecessaryLP(Bundle oldGlobalUserRestrictions) { 1849 final int originalVersion = mUserVersion; 1850 int userVersion = mUserVersion; 1851 if (userVersion < 1) { 1852 // Assign a proper name for the owner, if not initialized correctly before 1853 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1854 if ("Primary".equals(userData.info.name)) { 1855 userData.info.name = 1856 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1857 scheduleWriteUser(userData); 1858 } 1859 userVersion = 1; 1860 } 1861 1862 if (userVersion < 2) { 1863 // Owner should be marked as initialized 1864 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1865 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1866 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1867 scheduleWriteUser(userData); 1868 } 1869 userVersion = 2; 1870 } 1871 1872 1873 if (userVersion < 4) { 1874 userVersion = 4; 1875 } 1876 1877 if (userVersion < 5) { 1878 initDefaultGuestRestrictions(); 1879 userVersion = 5; 1880 } 1881 1882 if (userVersion < 6) { 1883 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1884 synchronized (mUsersLock) { 1885 for (int i = 0; i < mUsers.size(); i++) { 1886 UserData userData = mUsers.valueAt(i); 1887 // In non-split mode, only user 0 can have restricted profiles 1888 if (!splitSystemUser && userData.info.isRestricted() 1889 && (userData.info.restrictedProfileParentId 1890 == UserInfo.NO_PROFILE_GROUP_ID)) { 1891 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1892 scheduleWriteUser(userData); 1893 } 1894 } 1895 } 1896 userVersion = 6; 1897 } 1898 1899 if (userVersion < 7) { 1900 // Previously only one user could enforce global restrictions, now it is per-user. 1901 synchronized (mRestrictionsLock) { 1902 if (!UserRestrictionsUtils.isEmpty(oldGlobalUserRestrictions) 1903 && mDeviceOwnerUserId != UserHandle.USER_NULL) { 1904 mDevicePolicyGlobalUserRestrictions.put( 1905 mDeviceOwnerUserId, oldGlobalUserRestrictions); 1906 } 1907 // ENSURE_VERIFY_APPS is now enforced globally even if put by profile owner, so move 1908 // it from local to global bundle for all users who set it. 1909 UserRestrictionsUtils.moveRestriction(UserManager.ENSURE_VERIFY_APPS, 1910 mDevicePolicyLocalUserRestrictions, mDevicePolicyGlobalUserRestrictions 1911 ); 1912 } 1913 userVersion = 7; 1914 } 1915 1916 if (userVersion < USER_VERSION) { 1917 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1918 + USER_VERSION); 1919 } else { 1920 mUserVersion = userVersion; 1921 1922 if (originalVersion < mUserVersion) { 1923 writeUserListLP(); 1924 } 1925 } 1926 } 1927 1928 private void fallbackToSingleUserLP() { 1929 int flags = UserInfo.FLAG_INITIALIZED; 1930 // In split system user mode, the admin and primary flags are assigned to the first human 1931 // user. 1932 if (!UserManager.isSplitSystemUser()) { 1933 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1934 } 1935 // Create the system user 1936 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 1937 UserData userData = putUserInfo(system); 1938 mNextSerialNumber = MIN_USER_ID; 1939 mUserVersion = USER_VERSION; 1940 1941 Bundle restrictions = new Bundle(); 1942 try { 1943 final String[] defaultFirstUserRestrictions = mContext.getResources().getStringArray( 1944 com.android.internal.R.array.config_defaultFirstUserRestrictions); 1945 for (String userRestriction : defaultFirstUserRestrictions) { 1946 if (UserRestrictionsUtils.isValidRestriction(userRestriction)) { 1947 restrictions.putBoolean(userRestriction, true); 1948 } 1949 } 1950 } catch (Resources.NotFoundException e) { 1951 Log.e(LOG_TAG, "Couldn't find resource: config_defaultFirstUserRestrictions", e); 1952 } 1953 1954 if (!restrictions.isEmpty()) { 1955 synchronized (mRestrictionsLock) { 1956 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1957 } 1958 } 1959 1960 updateUserIds(); 1961 initDefaultGuestRestrictions(); 1962 1963 writeUserLP(userData); 1964 writeUserListLP(); 1965 } 1966 1967 private String getOwnerName() { 1968 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 1969 } 1970 1971 private void scheduleWriteUser(UserData UserData) { 1972 if (DBG) { 1973 debug("scheduleWriteUser"); 1974 } 1975 // No need to wrap it within a lock -- worst case, we'll just post the same message 1976 // twice. 1977 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 1978 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 1979 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1980 } 1981 } 1982 1983 private void writeUserLP(UserData userData) { 1984 if (DBG) { 1985 debug("writeUserLP " + userData); 1986 } 1987 FileOutputStream fos = null; 1988 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 1989 try { 1990 fos = userFile.startWrite(); 1991 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1992 writeUserLP(userData, bos); 1993 userFile.finishWrite(fos); 1994 } catch (Exception ioe) { 1995 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 1996 userFile.failWrite(fos); 1997 } 1998 } 1999 2000 /* 2001 * Writes the user file in this format: 2002 * 2003 * <user flags="20039023" id="0"> 2004 * <name>Primary</name> 2005 * </user> 2006 */ 2007 @VisibleForTesting 2008 void writeUserLP(UserData userData, OutputStream os) 2009 throws IOException, XmlPullParserException { 2010 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2011 final XmlSerializer serializer = new FastXmlSerializer(); 2012 serializer.setOutput(os, StandardCharsets.UTF_8.name()); 2013 serializer.startDocument(null, true); 2014 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2015 2016 final UserInfo userInfo = userData.info; 2017 serializer.startTag(null, TAG_USER); 2018 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 2019 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 2020 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 2021 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 2022 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 2023 Long.toString(userInfo.lastLoggedInTime)); 2024 if (userInfo.lastLoggedInFingerprint != null) { 2025 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 2026 userInfo.lastLoggedInFingerprint); 2027 } 2028 if (userInfo.iconPath != null) { 2029 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 2030 } 2031 if (userInfo.partial) { 2032 serializer.attribute(null, ATTR_PARTIAL, "true"); 2033 } 2034 if (userInfo.guestToRemove) { 2035 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 2036 } 2037 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 2038 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 2039 Integer.toString(userInfo.profileGroupId)); 2040 } 2041 serializer.attribute(null, ATTR_PROFILE_BADGE, 2042 Integer.toString(userInfo.profileBadge)); 2043 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 2044 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 2045 Integer.toString(userInfo.restrictedProfileParentId)); 2046 } 2047 // Write seed data 2048 if (userData.persistSeedData) { 2049 if (userData.seedAccountName != null) { 2050 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 2051 } 2052 if (userData.seedAccountType != null) { 2053 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 2054 } 2055 } 2056 if (userInfo.name != null) { 2057 serializer.startTag(null, TAG_NAME); 2058 serializer.text(userInfo.name); 2059 serializer.endTag(null, TAG_NAME); 2060 } 2061 synchronized (mRestrictionsLock) { 2062 UserRestrictionsUtils.writeRestrictions(serializer, 2063 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 2064 UserRestrictionsUtils.writeRestrictions(serializer, 2065 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 2066 TAG_DEVICE_POLICY_RESTRICTIONS); 2067 UserRestrictionsUtils.writeRestrictions(serializer, 2068 mDevicePolicyGlobalUserRestrictions.get(userInfo.id), 2069 TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS); 2070 } 2071 2072 if (userData.account != null) { 2073 serializer.startTag(null, TAG_ACCOUNT); 2074 serializer.text(userData.account); 2075 serializer.endTag(null, TAG_ACCOUNT); 2076 } 2077 2078 if (userData.persistSeedData && userData.seedAccountOptions != null) { 2079 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2080 userData.seedAccountOptions.saveToXml(serializer); 2081 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2082 } 2083 2084 serializer.endTag(null, TAG_USER); 2085 2086 serializer.endDocument(); 2087 } 2088 2089 /* 2090 * Writes the user list file in this format: 2091 * 2092 * <users nextSerialNumber="3"> 2093 * <user id="0"></user> 2094 * <user id="2"></user> 2095 * </users> 2096 */ 2097 private void writeUserListLP() { 2098 if (DBG) { 2099 debug("writeUserList"); 2100 } 2101 FileOutputStream fos = null; 2102 AtomicFile userListFile = new AtomicFile(mUserListFile); 2103 try { 2104 fos = userListFile.startWrite(); 2105 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2106 2107 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2108 final XmlSerializer serializer = new FastXmlSerializer(); 2109 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2110 serializer.startDocument(null, true); 2111 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2112 2113 serializer.startTag(null, TAG_USERS); 2114 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 2115 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 2116 2117 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 2118 synchronized (mGuestRestrictions) { 2119 UserRestrictionsUtils 2120 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 2121 } 2122 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 2123 serializer.startTag(null, TAG_DEVICE_OWNER_USER_ID); 2124 serializer.attribute(null, ATTR_ID, Integer.toString(mDeviceOwnerUserId)); 2125 serializer.endTag(null, TAG_DEVICE_OWNER_USER_ID); 2126 int[] userIdsToWrite; 2127 synchronized (mUsersLock) { 2128 userIdsToWrite = new int[mUsers.size()]; 2129 for (int i = 0; i < userIdsToWrite.length; i++) { 2130 UserInfo user = mUsers.valueAt(i).info; 2131 userIdsToWrite[i] = user.id; 2132 } 2133 } 2134 for (int id : userIdsToWrite) { 2135 serializer.startTag(null, TAG_USER); 2136 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 2137 serializer.endTag(null, TAG_USER); 2138 } 2139 2140 serializer.endTag(null, TAG_USERS); 2141 2142 serializer.endDocument(); 2143 userListFile.finishWrite(fos); 2144 } catch (Exception e) { 2145 userListFile.failWrite(fos); 2146 Slog.e(LOG_TAG, "Error writing user list"); 2147 } 2148 } 2149 2150 private UserData readUserLP(int id) { 2151 FileInputStream fis = null; 2152 try { 2153 AtomicFile userFile = 2154 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 2155 fis = userFile.openRead(); 2156 return readUserLP(id, fis); 2157 } catch (IOException ioe) { 2158 Slog.e(LOG_TAG, "Error reading user list"); 2159 } catch (XmlPullParserException pe) { 2160 Slog.e(LOG_TAG, "Error reading user list"); 2161 } finally { 2162 IoUtils.closeQuietly(fis); 2163 } 2164 return null; 2165 } 2166 2167 @VisibleForTesting 2168 UserData readUserLP(int id, InputStream is) throws IOException, 2169 XmlPullParserException { 2170 int flags = 0; 2171 int serialNumber = id; 2172 String name = null; 2173 String account = null; 2174 String iconPath = null; 2175 long creationTime = 0L; 2176 long lastLoggedInTime = 0L; 2177 String lastLoggedInFingerprint = null; 2178 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 2179 int profileBadge = 0; 2180 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 2181 boolean partial = false; 2182 boolean guestToRemove = false; 2183 boolean persistSeedData = false; 2184 String seedAccountName = null; 2185 String seedAccountType = null; 2186 PersistableBundle seedAccountOptions = null; 2187 Bundle baseRestrictions = null; 2188 Bundle localRestrictions = null; 2189 Bundle globalRestrictions = null; 2190 2191 XmlPullParser parser = Xml.newPullParser(); 2192 parser.setInput(is, StandardCharsets.UTF_8.name()); 2193 int type; 2194 while ((type = parser.next()) != XmlPullParser.START_TAG 2195 && type != XmlPullParser.END_DOCUMENT) { 2196 // Skip 2197 } 2198 2199 if (type != XmlPullParser.START_TAG) { 2200 Slog.e(LOG_TAG, "Unable to read user " + id); 2201 return null; 2202 } 2203 2204 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 2205 int storedId = readIntAttribute(parser, ATTR_ID, -1); 2206 if (storedId != id) { 2207 Slog.e(LOG_TAG, "User id does not match the file name"); 2208 return null; 2209 } 2210 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 2211 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 2212 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 2213 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 2214 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 2215 lastLoggedInFingerprint = parser.getAttributeValue(null, 2216 ATTR_LAST_LOGGED_IN_FINGERPRINT); 2217 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 2218 UserInfo.NO_PROFILE_GROUP_ID); 2219 profileBadge = readIntAttribute(parser, ATTR_PROFILE_BADGE, 0); 2220 restrictedProfileParentId = readIntAttribute(parser, 2221 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 2222 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 2223 if ("true".equals(valueString)) { 2224 partial = true; 2225 } 2226 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 2227 if ("true".equals(valueString)) { 2228 guestToRemove = true; 2229 } 2230 2231 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 2232 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 2233 if (seedAccountName != null || seedAccountType != null) { 2234 persistSeedData = true; 2235 } 2236 2237 int outerDepth = parser.getDepth(); 2238 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 2239 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2240 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2241 continue; 2242 } 2243 String tag = parser.getName(); 2244 if (TAG_NAME.equals(tag)) { 2245 type = parser.next(); 2246 if (type == XmlPullParser.TEXT) { 2247 name = parser.getText(); 2248 } 2249 } else if (TAG_RESTRICTIONS.equals(tag)) { 2250 baseRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2251 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 2252 localRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2253 } else if (TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS.equals(tag)) { 2254 globalRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2255 } else if (TAG_ACCOUNT.equals(tag)) { 2256 type = parser.next(); 2257 if (type == XmlPullParser.TEXT) { 2258 account = parser.getText(); 2259 } 2260 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 2261 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 2262 persistSeedData = true; 2263 } 2264 } 2265 } 2266 2267 // Create the UserInfo object that gets passed around 2268 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 2269 userInfo.serialNumber = serialNumber; 2270 userInfo.creationTime = creationTime; 2271 userInfo.lastLoggedInTime = lastLoggedInTime; 2272 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 2273 userInfo.partial = partial; 2274 userInfo.guestToRemove = guestToRemove; 2275 userInfo.profileGroupId = profileGroupId; 2276 userInfo.profileBadge = profileBadge; 2277 userInfo.restrictedProfileParentId = restrictedProfileParentId; 2278 2279 // Create the UserData object that's internal to this class 2280 UserData userData = new UserData(); 2281 userData.info = userInfo; 2282 userData.account = account; 2283 userData.seedAccountName = seedAccountName; 2284 userData.seedAccountType = seedAccountType; 2285 userData.persistSeedData = persistSeedData; 2286 userData.seedAccountOptions = seedAccountOptions; 2287 2288 synchronized (mRestrictionsLock) { 2289 if (baseRestrictions != null) { 2290 mBaseUserRestrictions.put(id, baseRestrictions); 2291 } 2292 if (localRestrictions != null) { 2293 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 2294 } 2295 if (globalRestrictions != null) { 2296 mDevicePolicyGlobalUserRestrictions.put(id, globalRestrictions); 2297 } 2298 } 2299 return userData; 2300 } 2301 2302 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 2303 String valueString = parser.getAttributeValue(null, attr); 2304 if (valueString == null) return defaultValue; 2305 try { 2306 return Integer.parseInt(valueString); 2307 } catch (NumberFormatException nfe) { 2308 return defaultValue; 2309 } 2310 } 2311 2312 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 2313 String valueString = parser.getAttributeValue(null, attr); 2314 if (valueString == null) return defaultValue; 2315 try { 2316 return Long.parseLong(valueString); 2317 } catch (NumberFormatException nfe) { 2318 return defaultValue; 2319 } 2320 } 2321 2322 /** 2323 * Removes the app restrictions file for a specific package and user id, if it exists. 2324 */ 2325 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 2326 synchronized (mPackagesLock) { 2327 File dir = Environment.getUserSystemDirectory(userId); 2328 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 2329 if (resFile.exists()) { 2330 resFile.delete(); 2331 } 2332 } 2333 } 2334 2335 @Override 2336 public UserInfo createProfileForUser(String name, int flags, int userId, 2337 String[] disallowedPackages) { 2338 checkManageOrCreateUsersPermission(flags); 2339 return createUserInternal(name, flags, userId, disallowedPackages); 2340 } 2341 2342 @Override 2343 public UserInfo createProfileForUserEvenWhenDisallowed(String name, int flags, int userId, 2344 String[] disallowedPackages) { 2345 checkManageOrCreateUsersPermission(flags); 2346 return createUserInternalUnchecked(name, flags, userId, disallowedPackages); 2347 } 2348 2349 @Override 2350 public boolean removeUserEvenWhenDisallowed(@UserIdInt int userHandle) { 2351 checkManageOrCreateUsersPermission("Only the system can remove users"); 2352 return removeUserUnchecked(userHandle); 2353 } 2354 2355 @Override 2356 public UserInfo createUser(String name, int flags) { 2357 checkManageOrCreateUsersPermission(flags); 2358 return createUserInternal(name, flags, UserHandle.USER_NULL); 2359 } 2360 2361 private UserInfo createUserInternal(String name, int flags, int parentId) { 2362 return createUserInternal(name, flags, parentId, null); 2363 } 2364 2365 private UserInfo createUserInternal(String name, int flags, int parentId, 2366 String[] disallowedPackages) { 2367 String restriction = ((flags & UserInfo.FLAG_MANAGED_PROFILE) != 0) 2368 ? UserManager.DISALLOW_ADD_MANAGED_PROFILE 2369 : UserManager.DISALLOW_ADD_USER; 2370 if (hasUserRestriction(restriction, UserHandle.getCallingUserId())) { 2371 Log.w(LOG_TAG, "Cannot add user. " + restriction + " is enabled."); 2372 return null; 2373 } 2374 return createUserInternalUnchecked(name, flags, parentId, disallowedPackages); 2375 } 2376 2377 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId, 2378 String[] disallowedPackages) { 2379 DeviceStorageMonitorInternal dsm = LocalServices 2380 .getService(DeviceStorageMonitorInternal.class); 2381 if (dsm.isMemoryLow()) { 2382 Log.w(LOG_TAG, "Cannot add user. Not enough space on disk."); 2383 return null; 2384 } 2385 if (ActivityManager.isLowRamDeviceStatic()) { 2386 return null; 2387 } 2388 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 2389 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 2390 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 2391 final boolean isDemo = (flags & UserInfo.FLAG_DEMO) != 0; 2392 final long ident = Binder.clearCallingIdentity(); 2393 UserInfo userInfo; 2394 UserData userData; 2395 final int userId; 2396 try { 2397 synchronized (mPackagesLock) { 2398 UserData parent = null; 2399 if (parentId != UserHandle.USER_NULL) { 2400 synchronized (mUsersLock) { 2401 parent = getUserDataLU(parentId); 2402 } 2403 if (parent == null) return null; 2404 } 2405 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 2406 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 2407 return null; 2408 } 2409 if (!isGuest && !isManagedProfile && !isDemo && isUserLimitReached()) { 2410 // If we're not adding a guest/demo user or a managed profile and the limit has 2411 // been reached, cannot add a user. 2412 return null; 2413 } 2414 // If we're adding a guest and there already exists one, bail. 2415 if (isGuest && findCurrentGuestUser() != null) { 2416 return null; 2417 } 2418 // In legacy mode, restricted profile's parent can only be the owner user 2419 if (isRestricted && !UserManager.isSplitSystemUser() 2420 && (parentId != UserHandle.USER_SYSTEM)) { 2421 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 2422 return null; 2423 } 2424 if (isRestricted && UserManager.isSplitSystemUser()) { 2425 if (parent == null) { 2426 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 2427 + "specified"); 2428 return null; 2429 } 2430 if (!parent.info.canHaveProfile()) { 2431 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 2432 + "created for the specified parent user id " + parentId); 2433 return null; 2434 } 2435 } 2436 if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0 2437 && (flags & UserInfo.FLAG_DEMO) == 0) { 2438 Log.e(LOG_TAG, 2439 "Ephemeral users are supported on split-system-user systems only."); 2440 return null; 2441 } 2442 // In split system user mode, we assign the first human user the primary flag. 2443 // And if there is no device owner, we also assign the admin flag to primary user. 2444 if (UserManager.isSplitSystemUser() 2445 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2446 flags |= UserInfo.FLAG_PRIMARY; 2447 synchronized (mUsersLock) { 2448 if (!mIsDeviceManaged) { 2449 flags |= UserInfo.FLAG_ADMIN; 2450 } 2451 } 2452 } 2453 2454 userId = getNextAvailableId(); 2455 Environment.getUserSystemDirectory(userId).mkdirs(); 2456 boolean ephemeralGuests = Resources.getSystem() 2457 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2458 2459 synchronized (mUsersLock) { 2460 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2461 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2462 || (parent != null && parent.info.isEphemeral())) { 2463 flags |= UserInfo.FLAG_EPHEMERAL; 2464 } 2465 2466 userInfo = new UserInfo(userId, name, null, flags); 2467 userInfo.serialNumber = mNextSerialNumber++; 2468 long now = System.currentTimeMillis(); 2469 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2470 userInfo.partial = true; 2471 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2472 if (isManagedProfile && parentId != UserHandle.USER_NULL) { 2473 userInfo.profileBadge = getFreeProfileBadgeLU(parentId); 2474 } 2475 userData = new UserData(); 2476 userData.info = userInfo; 2477 mUsers.put(userId, userData); 2478 } 2479 writeUserLP(userData); 2480 writeUserListLP(); 2481 if (parent != null) { 2482 if (isManagedProfile) { 2483 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2484 parent.info.profileGroupId = parent.info.id; 2485 writeUserLP(parent); 2486 } 2487 userInfo.profileGroupId = parent.info.profileGroupId; 2488 } else if (isRestricted) { 2489 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2490 parent.info.restrictedProfileParentId = parent.info.id; 2491 writeUserLP(parent); 2492 } 2493 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2494 } 2495 } 2496 } 2497 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2498 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2499 mUserDataPreparer.prepareUserData(userId, userInfo.serialNumber, 2500 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2501 mPm.createNewUser(userId, disallowedPackages); 2502 userInfo.partial = false; 2503 synchronized (mPackagesLock) { 2504 writeUserLP(userData); 2505 } 2506 updateUserIds(); 2507 Bundle restrictions = new Bundle(); 2508 if (isGuest) { 2509 synchronized (mGuestRestrictions) { 2510 restrictions.putAll(mGuestRestrictions); 2511 } 2512 } 2513 synchronized (mRestrictionsLock) { 2514 mBaseUserRestrictions.append(userId, restrictions); 2515 } 2516 mPm.onNewUserCreated(userId); 2517 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2518 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2519 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2520 android.Manifest.permission.MANAGE_USERS); 2521 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED : TRON_USER_CREATED, 1); 2522 } finally { 2523 Binder.restoreCallingIdentity(ident); 2524 } 2525 return userInfo; 2526 } 2527 2528 @VisibleForTesting 2529 UserData putUserInfo(UserInfo userInfo) { 2530 final UserData userData = new UserData(); 2531 userData.info = userInfo; 2532 synchronized (mUsers) { 2533 mUsers.put(userInfo.id, userData); 2534 } 2535 return userData; 2536 } 2537 2538 @VisibleForTesting 2539 void removeUserInfo(int userId) { 2540 synchronized (mUsers) { 2541 mUsers.remove(userId); 2542 } 2543 } 2544 2545 /** 2546 * @hide 2547 */ 2548 @Override 2549 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2550 checkManageOrCreateUsersPermission("setupRestrictedProfile"); 2551 final UserInfo user = createProfileForUser( 2552 name, UserInfo.FLAG_RESTRICTED, parentUserId, null); 2553 if (user == null) { 2554 return null; 2555 } 2556 long identity = Binder.clearCallingIdentity(); 2557 try { 2558 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2559 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2560 // the putIntForUser() will fail. 2561 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2562 android.provider.Settings.Secure.LOCATION_MODE, 2563 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2564 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2565 } finally { 2566 Binder.restoreCallingIdentity(identity); 2567 } 2568 return user; 2569 } 2570 2571 /** 2572 * Find the current guest user. If the Guest user is partial, 2573 * then do not include it in the results as it is about to die. 2574 */ 2575 private UserInfo findCurrentGuestUser() { 2576 synchronized (mUsersLock) { 2577 final int size = mUsers.size(); 2578 for (int i = 0; i < size; i++) { 2579 final UserInfo user = mUsers.valueAt(i).info; 2580 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2581 return user; 2582 } 2583 } 2584 } 2585 return null; 2586 } 2587 2588 /** 2589 * Mark this guest user for deletion to allow us to create another guest 2590 * and switch to that user before actually removing this guest. 2591 * @param userHandle the userid of the current guest 2592 * @return whether the user could be marked for deletion 2593 */ 2594 @Override 2595 public boolean markGuestForDeletion(int userHandle) { 2596 checkManageUsersPermission("Only the system can remove users"); 2597 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2598 UserManager.DISALLOW_REMOVE_USER, false)) { 2599 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2600 return false; 2601 } 2602 2603 long ident = Binder.clearCallingIdentity(); 2604 try { 2605 final UserData userData; 2606 synchronized (mPackagesLock) { 2607 synchronized (mUsersLock) { 2608 userData = mUsers.get(userHandle); 2609 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2610 return false; 2611 } 2612 } 2613 if (!userData.info.isGuest()) { 2614 return false; 2615 } 2616 // We set this to a guest user that is to be removed. This is a temporary state 2617 // where we are allowed to add new Guest users, even if this one is still not 2618 // removed. This user will still show up in getUserInfo() calls. 2619 // If we don't get around to removing this Guest user, it will be purged on next 2620 // startup. 2621 userData.info.guestToRemove = true; 2622 // Mark it as disabled, so that it isn't returned any more when 2623 // profiles are queried. 2624 userData.info.flags |= UserInfo.FLAG_DISABLED; 2625 writeUserLP(userData); 2626 } 2627 } finally { 2628 Binder.restoreCallingIdentity(ident); 2629 } 2630 return true; 2631 } 2632 2633 /** 2634 * Removes a user and all data directories created for that user. This method should be called 2635 * after the user's processes have been terminated. 2636 * @param userHandle the user's id 2637 */ 2638 @Override 2639 public boolean removeUser(int userHandle) { 2640 Slog.i(LOG_TAG, "removeUser u" + userHandle); 2641 checkManageOrCreateUsersPermission("Only the system can remove users"); 2642 2643 final boolean isManagedProfile; 2644 synchronized (mUsersLock) { 2645 UserInfo userInfo = getUserInfoLU(userHandle); 2646 isManagedProfile = userInfo != null && userInfo.isManagedProfile(); 2647 } 2648 String restriction = isManagedProfile 2649 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE : UserManager.DISALLOW_REMOVE_USER; 2650 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean(restriction, false)) { 2651 Log.w(LOG_TAG, "Cannot remove user. " + restriction + " is enabled."); 2652 return false; 2653 } 2654 return removeUserUnchecked(userHandle); 2655 } 2656 2657 private boolean removeUserUnchecked(int userHandle) { 2658 long ident = Binder.clearCallingIdentity(); 2659 try { 2660 final UserData userData; 2661 int currentUser = ActivityManager.getCurrentUser(); 2662 if (currentUser == userHandle) { 2663 Log.w(LOG_TAG, "Current user cannot be removed"); 2664 return false; 2665 } 2666 synchronized (mPackagesLock) { 2667 synchronized (mUsersLock) { 2668 userData = mUsers.get(userHandle); 2669 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2670 return false; 2671 } 2672 2673 addRemovingUserIdLocked(userHandle); 2674 } 2675 2676 try { 2677 mAppOpsService.removeUser(userHandle); 2678 } catch (RemoteException e) { 2679 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2680 } 2681 // Set this to a partially created user, so that the user will be purged 2682 // on next startup, in case the runtime stops now before stopping and 2683 // removing the user completely. 2684 userData.info.partial = true; 2685 // Mark it as disabled, so that it isn't returned any more when 2686 // profiles are queried. 2687 userData.info.flags |= UserInfo.FLAG_DISABLED; 2688 writeUserLP(userData); 2689 } 2690 2691 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2692 && userData.info.isManagedProfile()) { 2693 // Send broadcast to notify system that the user removed was a 2694 // managed user. 2695 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2696 } 2697 2698 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2699 int res; 2700 try { 2701 res = ActivityManager.getService().stopUser(userHandle, /* force= */ true, 2702 new IStopUserCallback.Stub() { 2703 @Override 2704 public void userStopped(int userId) { 2705 finishRemoveUser(userId); 2706 } 2707 @Override 2708 public void userStopAborted(int userId) { 2709 } 2710 }); 2711 } catch (RemoteException e) { 2712 return false; 2713 } 2714 return res == ActivityManager.USER_OP_SUCCESS; 2715 } finally { 2716 Binder.restoreCallingIdentity(ident); 2717 } 2718 } 2719 2720 @VisibleForTesting 2721 void addRemovingUserIdLocked(int userId) { 2722 // We remember deleted user IDs to prevent them from being 2723 // reused during the current boot; they can still be reused 2724 // after a reboot or recycling of userIds. 2725 mRemovingUserIds.put(userId, true); 2726 mRecentlyRemovedIds.add(userId); 2727 // Keep LRU queue of recently removed IDs for recycling 2728 if (mRecentlyRemovedIds.size() > MAX_RECENTLY_REMOVED_IDS_SIZE) { 2729 mRecentlyRemovedIds.removeFirst(); 2730 } 2731 } 2732 2733 void finishRemoveUser(final int userHandle) { 2734 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2735 // Let other services shutdown any activity and clean up their state before completely 2736 // wiping the user's system directory and removing from the user list 2737 long ident = Binder.clearCallingIdentity(); 2738 try { 2739 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2740 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2741 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2742 android.Manifest.permission.MANAGE_USERS, 2743 2744 new BroadcastReceiver() { 2745 @Override 2746 public void onReceive(Context context, Intent intent) { 2747 if (DBG) { 2748 Slog.i(LOG_TAG, 2749 "USER_REMOVED broadcast sent, cleaning up user data " 2750 + userHandle); 2751 } 2752 new Thread() { 2753 @Override 2754 public void run() { 2755 // Clean up any ActivityManager state 2756 LocalServices.getService(ActivityManagerInternal.class) 2757 .onUserRemoved(userHandle); 2758 removeUserState(userHandle); 2759 } 2760 }.start(); 2761 } 2762 }, 2763 2764 null, Activity.RESULT_OK, null, null); 2765 } finally { 2766 Binder.restoreCallingIdentity(ident); 2767 } 2768 } 2769 2770 private void removeUserState(final int userHandle) { 2771 try { 2772 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2773 } catch (IllegalStateException e) { 2774 // This may be simply because the user was partially created. 2775 Slog.i(LOG_TAG, 2776 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2777 } 2778 2779 // Cleanup gatekeeper secure user id 2780 try { 2781 final IGateKeeperService gk = GateKeeper.getService(); 2782 if (gk != null) { 2783 gk.clearSecureUserId(userHandle); 2784 } 2785 } catch (Exception ex) { 2786 Slog.w(LOG_TAG, "unable to clear GK secure user id"); 2787 } 2788 2789 // Cleanup package manager settings 2790 mPm.cleanUpUser(this, userHandle); 2791 2792 // Clean up all data before removing metadata 2793 mUserDataPreparer.destroyUserData(userHandle, 2794 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2795 2796 // Remove this user from the list 2797 synchronized (mUsersLock) { 2798 mUsers.remove(userHandle); 2799 mIsUserManaged.delete(userHandle); 2800 } 2801 synchronized (mUserStates) { 2802 mUserStates.delete(userHandle); 2803 } 2804 synchronized (mRestrictionsLock) { 2805 mBaseUserRestrictions.remove(userHandle); 2806 mAppliedUserRestrictions.remove(userHandle); 2807 mCachedEffectiveUserRestrictions.remove(userHandle); 2808 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2809 if (mDevicePolicyGlobalUserRestrictions.get(userHandle) != null) { 2810 mDevicePolicyGlobalUserRestrictions.remove(userHandle); 2811 applyUserRestrictionsForAllUsersLR(); 2812 } 2813 } 2814 // Update the user list 2815 synchronized (mPackagesLock) { 2816 writeUserListLP(); 2817 } 2818 // Remove user file 2819 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2820 userFile.delete(); 2821 updateUserIds(); 2822 if (RELEASE_DELETED_USER_ID) { 2823 synchronized (mUsers) { 2824 mRemovingUserIds.delete(userHandle); 2825 } 2826 } 2827 } 2828 2829 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2830 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2831 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2832 Intent.FLAG_RECEIVER_FOREGROUND); 2833 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2834 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2835 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2836 } 2837 2838 @Override 2839 public Bundle getApplicationRestrictions(String packageName) { 2840 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2841 } 2842 2843 @Override 2844 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2845 if (UserHandle.getCallingUserId() != userId 2846 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2847 checkSystemOrRoot("get application restrictions for other user/app " + packageName); 2848 } 2849 synchronized (mPackagesLock) { 2850 // Read the restrictions from XML 2851 return readApplicationRestrictionsLP(packageName, userId); 2852 } 2853 } 2854 2855 @Override 2856 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2857 int userId) { 2858 checkSystemOrRoot("set application restrictions"); 2859 if (restrictions != null) { 2860 restrictions.setDefusable(true); 2861 } 2862 synchronized (mPackagesLock) { 2863 if (restrictions == null || restrictions.isEmpty()) { 2864 cleanAppRestrictionsForPackage(packageName, userId); 2865 } else { 2866 // Write the restrictions to XML 2867 writeApplicationRestrictionsLP(packageName, restrictions, userId); 2868 } 2869 } 2870 2871 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2872 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2873 changeIntent.setPackage(packageName); 2874 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2875 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2876 } 2877 2878 private int getUidForPackage(String packageName) { 2879 long ident = Binder.clearCallingIdentity(); 2880 try { 2881 return mContext.getPackageManager().getApplicationInfo(packageName, 2882 PackageManager.MATCH_ANY_USER).uid; 2883 } catch (NameNotFoundException nnfe) { 2884 return -1; 2885 } finally { 2886 Binder.restoreCallingIdentity(ident); 2887 } 2888 } 2889 2890 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 2891 AtomicFile restrictionsFile = 2892 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2893 packageToRestrictionsFileName(packageName))); 2894 return readApplicationRestrictionsLP(restrictionsFile); 2895 } 2896 2897 @VisibleForTesting 2898 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 2899 final Bundle restrictions = new Bundle(); 2900 final ArrayList<String> values = new ArrayList<>(); 2901 if (!restrictionsFile.getBaseFile().exists()) { 2902 return restrictions; 2903 } 2904 2905 FileInputStream fis = null; 2906 try { 2907 fis = restrictionsFile.openRead(); 2908 XmlPullParser parser = Xml.newPullParser(); 2909 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2910 XmlUtils.nextElement(parser); 2911 if (parser.getEventType() != XmlPullParser.START_TAG) { 2912 Slog.e(LOG_TAG, "Unable to read restrictions file " 2913 + restrictionsFile.getBaseFile()); 2914 return restrictions; 2915 } 2916 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2917 readEntry(restrictions, values, parser); 2918 } 2919 } catch (IOException|XmlPullParserException e) { 2920 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2921 } finally { 2922 IoUtils.closeQuietly(fis); 2923 } 2924 return restrictions; 2925 } 2926 2927 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2928 XmlPullParser parser) throws XmlPullParserException, IOException { 2929 int type = parser.getEventType(); 2930 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2931 String key = parser.getAttributeValue(null, ATTR_KEY); 2932 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2933 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2934 if (multiple != null) { 2935 values.clear(); 2936 int count = Integer.parseInt(multiple); 2937 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2938 if (type == XmlPullParser.START_TAG 2939 && parser.getName().equals(TAG_VALUE)) { 2940 values.add(parser.nextText().trim()); 2941 count--; 2942 } 2943 } 2944 String [] valueStrings = new String[values.size()]; 2945 values.toArray(valueStrings); 2946 restrictions.putStringArray(key, valueStrings); 2947 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2948 restrictions.putBundle(key, readBundleEntry(parser, values)); 2949 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2950 final int outerDepth = parser.getDepth(); 2951 ArrayList<Bundle> bundleList = new ArrayList<>(); 2952 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2953 Bundle childBundle = readBundleEntry(parser, values); 2954 bundleList.add(childBundle); 2955 } 2956 restrictions.putParcelableArray(key, 2957 bundleList.toArray(new Bundle[bundleList.size()])); 2958 } else { 2959 String value = parser.nextText().trim(); 2960 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2961 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2962 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2963 restrictions.putInt(key, Integer.parseInt(value)); 2964 } else { 2965 restrictions.putString(key, value); 2966 } 2967 } 2968 } 2969 } 2970 2971 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2972 throws IOException, XmlPullParserException { 2973 Bundle childBundle = new Bundle(); 2974 final int outerDepth = parser.getDepth(); 2975 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2976 readEntry(childBundle, values, parser); 2977 } 2978 return childBundle; 2979 } 2980 2981 private void writeApplicationRestrictionsLP(String packageName, 2982 Bundle restrictions, int userId) { 2983 AtomicFile restrictionsFile = new AtomicFile( 2984 new File(Environment.getUserSystemDirectory(userId), 2985 packageToRestrictionsFileName(packageName))); 2986 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 2987 } 2988 2989 @VisibleForTesting 2990 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 2991 FileOutputStream fos = null; 2992 try { 2993 fos = restrictionsFile.startWrite(); 2994 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2995 2996 final XmlSerializer serializer = new FastXmlSerializer(); 2997 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2998 serializer.startDocument(null, true); 2999 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 3000 3001 serializer.startTag(null, TAG_RESTRICTIONS); 3002 writeBundle(restrictions, serializer); 3003 serializer.endTag(null, TAG_RESTRICTIONS); 3004 3005 serializer.endDocument(); 3006 restrictionsFile.finishWrite(fos); 3007 } catch (Exception e) { 3008 restrictionsFile.failWrite(fos); 3009 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 3010 } 3011 } 3012 3013 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 3014 throws IOException { 3015 for (String key : restrictions.keySet()) { 3016 Object value = restrictions.get(key); 3017 serializer.startTag(null, TAG_ENTRY); 3018 serializer.attribute(null, ATTR_KEY, key); 3019 3020 if (value instanceof Boolean) { 3021 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 3022 serializer.text(value.toString()); 3023 } else if (value instanceof Integer) { 3024 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 3025 serializer.text(value.toString()); 3026 } else if (value == null || value instanceof String) { 3027 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 3028 serializer.text(value != null ? (String) value : ""); 3029 } else if (value instanceof Bundle) { 3030 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3031 writeBundle((Bundle) value, serializer); 3032 } else if (value instanceof Parcelable[]) { 3033 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 3034 Parcelable[] array = (Parcelable[]) value; 3035 for (Parcelable parcelable : array) { 3036 if (!(parcelable instanceof Bundle)) { 3037 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 3038 } 3039 serializer.startTag(null, TAG_ENTRY); 3040 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3041 writeBundle((Bundle) parcelable, serializer); 3042 serializer.endTag(null, TAG_ENTRY); 3043 } 3044 } else { 3045 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 3046 String[] values = (String[]) value; 3047 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 3048 for (String choice : values) { 3049 serializer.startTag(null, TAG_VALUE); 3050 serializer.text(choice != null ? choice : ""); 3051 serializer.endTag(null, TAG_VALUE); 3052 } 3053 } 3054 serializer.endTag(null, TAG_ENTRY); 3055 } 3056 } 3057 3058 @Override 3059 public int getUserSerialNumber(int userHandle) { 3060 synchronized (mUsersLock) { 3061 if (!exists(userHandle)) return -1; 3062 return getUserInfoLU(userHandle).serialNumber; 3063 } 3064 } 3065 3066 @Override 3067 public int getUserHandle(int userSerialNumber) { 3068 synchronized (mUsersLock) { 3069 for (int userId : mUserIds) { 3070 UserInfo info = getUserInfoLU(userId); 3071 if (info != null && info.serialNumber == userSerialNumber) return userId; 3072 } 3073 // Not found 3074 return -1; 3075 } 3076 } 3077 3078 @Override 3079 public long getUserCreationTime(int userHandle) { 3080 int callingUserId = UserHandle.getCallingUserId(); 3081 UserInfo userInfo = null; 3082 synchronized (mUsersLock) { 3083 if (callingUserId == userHandle) { 3084 userInfo = getUserInfoLU(userHandle); 3085 } else { 3086 UserInfo parent = getProfileParentLU(userHandle); 3087 if (parent != null && parent.id == callingUserId) { 3088 userInfo = getUserInfoLU(userHandle); 3089 } 3090 } 3091 } 3092 if (userInfo == null) { 3093 throw new SecurityException("userHandle can only be the calling user or a managed " 3094 + "profile associated with this user"); 3095 } 3096 return userInfo.creationTime; 3097 } 3098 3099 /** 3100 * Caches the list of user ids in an array, adjusting the array size when necessary. 3101 */ 3102 private void updateUserIds() { 3103 int num = 0; 3104 synchronized (mUsersLock) { 3105 final int userSize = mUsers.size(); 3106 for (int i = 0; i < userSize; i++) { 3107 if (!mUsers.valueAt(i).info.partial) { 3108 num++; 3109 } 3110 } 3111 final int[] newUsers = new int[num]; 3112 int n = 0; 3113 for (int i = 0; i < userSize; i++) { 3114 if (!mUsers.valueAt(i).info.partial) { 3115 newUsers[n++] = mUsers.keyAt(i); 3116 } 3117 } 3118 mUserIds = newUsers; 3119 } 3120 } 3121 3122 /** 3123 * Called right before a user is started. This gives us a chance to prepare 3124 * app storage and apply any user restrictions. 3125 */ 3126 public void onBeforeStartUser(int userId) { 3127 UserInfo userInfo = getUserInfo(userId); 3128 if (userInfo == null) { 3129 return; 3130 } 3131 final int userSerial = userInfo.serialNumber; 3132 // Migrate only if build fingerprints mismatch 3133 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3134 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 3135 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE, migrateAppsData); 3136 3137 if (userId != UserHandle.USER_SYSTEM) { 3138 synchronized (mRestrictionsLock) { 3139 applyUserRestrictionsLR(userId); 3140 } 3141 } 3142 } 3143 3144 /** 3145 * Called right before a user is unlocked. This gives us a chance to prepare 3146 * app storage. 3147 */ 3148 public void onBeforeUnlockUser(@UserIdInt int userId) { 3149 UserInfo userInfo = getUserInfo(userId); 3150 if (userInfo == null) { 3151 return; 3152 } 3153 final int userSerial = userInfo.serialNumber; 3154 // Migrate only if build fingerprints mismatch 3155 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3156 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 3157 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE, migrateAppsData); 3158 } 3159 3160 /** 3161 * Examine all users present on given mounted volume, and destroy data 3162 * belonging to users that are no longer valid, or whose user ID has been 3163 * recycled. 3164 */ 3165 void reconcileUsers(String volumeUuid) { 3166 mUserDataPreparer.reconcileUsers(volumeUuid, getUsers(true /* excludeDying */)); 3167 } 3168 3169 /** 3170 * Make a note of the last started time of a user and do some cleanup. 3171 * This is called with ActivityManagerService lock held. 3172 * @param userId the user that was just foregrounded 3173 */ 3174 public void onUserLoggedIn(@UserIdInt int userId) { 3175 UserData userData = getUserDataNoChecks(userId); 3176 if (userData == null || userData.info.partial) { 3177 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 3178 return; 3179 } 3180 3181 final long now = System.currentTimeMillis(); 3182 if (now > EPOCH_PLUS_30_YEARS) { 3183 userData.info.lastLoggedInTime = now; 3184 } 3185 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 3186 scheduleWriteUser(userData); 3187 } 3188 3189 /** 3190 * Returns the next available user id, filling in any holes in the ids. 3191 */ 3192 @VisibleForTesting 3193 int getNextAvailableId() { 3194 int nextId; 3195 synchronized (mUsersLock) { 3196 nextId = scanNextAvailableIdLocked(); 3197 if (nextId >= 0) { 3198 return nextId; 3199 } 3200 // All ids up to MAX_USER_ID were used. Remove all mRemovingUserIds, 3201 // except most recently removed 3202 if (mRemovingUserIds.size() > 0) { 3203 Slog.i(LOG_TAG, "All available IDs are used. Recycling LRU ids."); 3204 mRemovingUserIds.clear(); 3205 for (Integer recentlyRemovedId : mRecentlyRemovedIds) { 3206 mRemovingUserIds.put(recentlyRemovedId, true); 3207 } 3208 nextId = scanNextAvailableIdLocked(); 3209 } 3210 } 3211 if (nextId < 0) { 3212 throw new IllegalStateException("No user id available!"); 3213 } 3214 return nextId; 3215 } 3216 3217 private int scanNextAvailableIdLocked() { 3218 for (int i = MIN_USER_ID; i < MAX_USER_ID; i++) { 3219 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 3220 return i; 3221 } 3222 } 3223 return -1; 3224 } 3225 3226 private String packageToRestrictionsFileName(String packageName) { 3227 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 3228 } 3229 3230 @Override 3231 public void setSeedAccountData(int userId, String accountName, String accountType, 3232 PersistableBundle accountOptions, boolean persist) { 3233 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 3234 synchronized (mPackagesLock) { 3235 final UserData userData; 3236 synchronized (mUsersLock) { 3237 userData = getUserDataLU(userId); 3238 if (userData == null) { 3239 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 3240 return; 3241 } 3242 userData.seedAccountName = accountName; 3243 userData.seedAccountType = accountType; 3244 userData.seedAccountOptions = accountOptions; 3245 userData.persistSeedData = persist; 3246 } 3247 if (persist) { 3248 writeUserLP(userData); 3249 } 3250 } 3251 } 3252 3253 @Override 3254 public String getSeedAccountName() throws RemoteException { 3255 checkManageUsersPermission("Cannot get seed account information"); 3256 synchronized (mUsersLock) { 3257 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3258 return userData.seedAccountName; 3259 } 3260 } 3261 3262 @Override 3263 public String getSeedAccountType() throws RemoteException { 3264 checkManageUsersPermission("Cannot get seed account information"); 3265 synchronized (mUsersLock) { 3266 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3267 return userData.seedAccountType; 3268 } 3269 } 3270 3271 @Override 3272 public PersistableBundle getSeedAccountOptions() throws RemoteException { 3273 checkManageUsersPermission("Cannot get seed account information"); 3274 synchronized (mUsersLock) { 3275 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3276 return userData.seedAccountOptions; 3277 } 3278 } 3279 3280 @Override 3281 public void clearSeedAccountData() throws RemoteException { 3282 checkManageUsersPermission("Cannot clear seed account information"); 3283 synchronized (mPackagesLock) { 3284 UserData userData; 3285 synchronized (mUsersLock) { 3286 userData = getUserDataLU(UserHandle.getCallingUserId()); 3287 if (userData == null) return; 3288 userData.clearSeedAccountData(); 3289 } 3290 writeUserLP(userData); 3291 } 3292 } 3293 3294 @Override 3295 public boolean someUserHasSeedAccount(String accountName, String accountType) 3296 throws RemoteException { 3297 checkManageUsersPermission("Cannot check seed account information"); 3298 synchronized (mUsersLock) { 3299 final int userSize = mUsers.size(); 3300 for (int i = 0; i < userSize; i++) { 3301 final UserData data = mUsers.valueAt(i); 3302 if (data.info.isInitialized()) continue; 3303 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 3304 continue; 3305 } 3306 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 3307 continue; 3308 } 3309 return true; 3310 } 3311 } 3312 return false; 3313 } 3314 3315 @Override 3316 public void onShellCommand(FileDescriptor in, FileDescriptor out, 3317 FileDescriptor err, String[] args, ShellCallback callback, 3318 ResultReceiver resultReceiver) { 3319 (new Shell()).exec(this, in, out, err, args, callback, resultReceiver); 3320 } 3321 3322 int onShellCommand(Shell shell, String cmd) { 3323 if (cmd == null) { 3324 return shell.handleDefaultCommands(cmd); 3325 } 3326 3327 final PrintWriter pw = shell.getOutPrintWriter(); 3328 try { 3329 switch(cmd) { 3330 case "list": 3331 return runList(pw); 3332 } 3333 } catch (RemoteException e) { 3334 pw.println("Remote exception: " + e); 3335 } 3336 return -1; 3337 } 3338 3339 private int runList(PrintWriter pw) throws RemoteException { 3340 final IActivityManager am = ActivityManager.getService(); 3341 final List<UserInfo> users = getUsers(false); 3342 if (users == null) { 3343 pw.println("Error: couldn't get users"); 3344 return 1; 3345 } else { 3346 pw.println("Users:"); 3347 for (int i = 0; i < users.size(); i++) { 3348 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 3349 pw.println("\t" + users.get(i).toString() + running); 3350 } 3351 return 0; 3352 } 3353 } 3354 3355 @Override 3356 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3357 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 3358 != PackageManager.PERMISSION_GRANTED) { 3359 pw.println("Permission Denial: can't dump UserManager from from pid=" 3360 + Binder.getCallingPid() 3361 + ", uid=" + Binder.getCallingUid() 3362 + " without permission " 3363 + android.Manifest.permission.DUMP); 3364 return; 3365 } 3366 3367 long now = System.currentTimeMillis(); 3368 StringBuilder sb = new StringBuilder(); 3369 synchronized (mPackagesLock) { 3370 synchronized (mUsersLock) { 3371 pw.println("Users:"); 3372 for (int i = 0; i < mUsers.size(); i++) { 3373 UserData userData = mUsers.valueAt(i); 3374 if (userData == null) { 3375 continue; 3376 } 3377 UserInfo userInfo = userData.info; 3378 final int userId = userInfo.id; 3379 pw.print(" "); pw.print(userInfo); 3380 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 3381 if (mRemovingUserIds.get(userId)) { 3382 pw.print(" <removing> "); 3383 } 3384 if (userInfo.partial) { 3385 pw.print(" <partial>"); 3386 } 3387 pw.println(); 3388 pw.print(" Created: "); 3389 if (userInfo.creationTime == 0) { 3390 pw.println("<unknown>"); 3391 } else { 3392 sb.setLength(0); 3393 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 3394 sb.append(" ago"); 3395 pw.println(sb); 3396 } 3397 pw.print(" Last logged in: "); 3398 if (userInfo.lastLoggedInTime == 0) { 3399 pw.println("<unknown>"); 3400 } else { 3401 sb.setLength(0); 3402 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 3403 sb.append(" ago"); 3404 pw.println(sb); 3405 } 3406 pw.print(" Last logged in fingerprint: "); 3407 pw.println(userInfo.lastLoggedInFingerprint); 3408 pw.print(" Has profile owner: "); 3409 pw.println(mIsUserManaged.get(userId)); 3410 pw.println(" Restrictions:"); 3411 synchronized (mRestrictionsLock) { 3412 UserRestrictionsUtils.dumpRestrictions( 3413 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 3414 pw.println(" Device policy global restrictions:"); 3415 UserRestrictionsUtils.dumpRestrictions( 3416 pw, " ", mDevicePolicyGlobalUserRestrictions.get(userInfo.id)); 3417 pw.println(" Device policy local restrictions:"); 3418 UserRestrictionsUtils.dumpRestrictions( 3419 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 3420 pw.println(" Effective restrictions:"); 3421 UserRestrictionsUtils.dumpRestrictions( 3422 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 3423 } 3424 3425 if (userData.account != null) { 3426 pw.print(" Account name: " + userData.account); 3427 pw.println(); 3428 } 3429 3430 if (userData.seedAccountName != null) { 3431 pw.print(" Seed account name: " + userData.seedAccountName); 3432 pw.println(); 3433 if (userData.seedAccountType != null) { 3434 pw.print(" account type: " + userData.seedAccountType); 3435 pw.println(); 3436 } 3437 if (userData.seedAccountOptions != null) { 3438 pw.print(" account options exist"); 3439 pw.println(); 3440 } 3441 } 3442 } 3443 } 3444 pw.println(); 3445 pw.println(" Device owner id:" + mDeviceOwnerUserId); 3446 pw.println(); 3447 pw.println(" Guest restrictions:"); 3448 synchronized (mGuestRestrictions) { 3449 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 3450 } 3451 synchronized (mUsersLock) { 3452 pw.println(); 3453 pw.println(" Device managed: " + mIsDeviceManaged); 3454 if (mRemovingUserIds.size() > 0) { 3455 pw.println(); 3456 pw.println(" Recently removed userIds: " + mRecentlyRemovedIds); 3457 } 3458 } 3459 synchronized (mUserStates) { 3460 pw.println(" Started users state: " + mUserStates); 3461 } 3462 // Dump some capabilities 3463 pw.println(); 3464 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 3465 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 3466 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 3467 com.android.internal.R.bool.config_guestUserEphemeral)); 3468 } 3469 } 3470 3471 final class MainHandler extends Handler { 3472 3473 @Override 3474 public void handleMessage(Message msg) { 3475 switch (msg.what) { 3476 case WRITE_USER_MSG: 3477 removeMessages(WRITE_USER_MSG, msg.obj); 3478 synchronized (mPackagesLock) { 3479 int userId = ((UserData) msg.obj).info.id; 3480 UserData userData = getUserDataNoChecks(userId); 3481 if (userData != null) { 3482 writeUserLP(userData); 3483 } 3484 } 3485 } 3486 } 3487 } 3488 3489 /** 3490 * @param userId 3491 * @return whether the user has been initialized yet 3492 */ 3493 boolean isInitialized(int userId) { 3494 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3495 } 3496 3497 private class LocalService extends UserManagerInternal { 3498 @Override 3499 public void setDevicePolicyUserRestrictions(int userId, @Nullable Bundle restrictions, 3500 boolean isDeviceOwner, int cameraRestrictionScope) { 3501 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, restrictions, 3502 isDeviceOwner, cameraRestrictionScope); 3503 } 3504 3505 @Override 3506 public Bundle getBaseUserRestrictions(int userId) { 3507 synchronized (mRestrictionsLock) { 3508 return mBaseUserRestrictions.get(userId); 3509 } 3510 } 3511 3512 @Override 3513 public void setBaseUserRestrictionsByDpmsForMigration( 3514 int userId, Bundle baseRestrictions) { 3515 synchronized (mRestrictionsLock) { 3516 if (updateRestrictionsIfNeededLR( 3517 userId, new Bundle(baseRestrictions), mBaseUserRestrictions)) { 3518 invalidateEffectiveUserRestrictionsLR(userId); 3519 } 3520 } 3521 3522 final UserData userData = getUserDataNoChecks(userId); 3523 synchronized (mPackagesLock) { 3524 if (userData != null) { 3525 writeUserLP(userData); 3526 } else { 3527 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3528 } 3529 } 3530 } 3531 3532 @Override 3533 public boolean getUserRestriction(int userId, String key) { 3534 return getUserRestrictions(userId).getBoolean(key); 3535 } 3536 3537 @Override 3538 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3539 synchronized (mUserRestrictionsListeners) { 3540 mUserRestrictionsListeners.add(listener); 3541 } 3542 } 3543 3544 @Override 3545 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3546 synchronized (mUserRestrictionsListeners) { 3547 mUserRestrictionsListeners.remove(listener); 3548 } 3549 } 3550 3551 @Override 3552 public void setDeviceManaged(boolean isManaged) { 3553 synchronized (mUsersLock) { 3554 mIsDeviceManaged = isManaged; 3555 } 3556 } 3557 3558 @Override 3559 public void setUserManaged(int userId, boolean isManaged) { 3560 synchronized (mUsersLock) { 3561 mIsUserManaged.put(userId, isManaged); 3562 } 3563 } 3564 3565 @Override 3566 public void setUserIcon(int userId, Bitmap bitmap) { 3567 long ident = Binder.clearCallingIdentity(); 3568 try { 3569 synchronized (mPackagesLock) { 3570 UserData userData = getUserDataNoChecks(userId); 3571 if (userData == null || userData.info.partial) { 3572 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3573 return; 3574 } 3575 writeBitmapLP(userData.info, bitmap); 3576 writeUserLP(userData); 3577 } 3578 sendUserInfoChangedBroadcast(userId); 3579 } finally { 3580 Binder.restoreCallingIdentity(ident); 3581 } 3582 } 3583 3584 @Override 3585 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3586 synchronized (mUsersLock) { 3587 mForceEphemeralUsers = forceEphemeralUsers; 3588 } 3589 } 3590 3591 @Override 3592 public void removeAllUsers() { 3593 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3594 // Remove the non-system users straight away. 3595 removeNonSystemUsers(); 3596 } else { 3597 // Switch to the system user first and then remove the other users. 3598 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3599 @Override 3600 public void onReceive(Context context, Intent intent) { 3601 int userId = 3602 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3603 if (userId != UserHandle.USER_SYSTEM) { 3604 return; 3605 } 3606 mContext.unregisterReceiver(this); 3607 removeNonSystemUsers(); 3608 } 3609 }; 3610 IntentFilter userSwitchedFilter = new IntentFilter(); 3611 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3612 mContext.registerReceiver( 3613 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3614 3615 // Switch to the system user. 3616 ActivityManager am = 3617 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3618 am.switchUser(UserHandle.USER_SYSTEM); 3619 } 3620 } 3621 3622 @Override 3623 public void onEphemeralUserStop(int userId) { 3624 synchronized (mUsersLock) { 3625 UserInfo userInfo = getUserInfoLU(userId); 3626 if (userInfo != null && userInfo.isEphemeral()) { 3627 // Do not allow switching back to the ephemeral user again as the user is going 3628 // to be deleted. 3629 userInfo.flags |= UserInfo.FLAG_DISABLED; 3630 if (userInfo.isGuest()) { 3631 // Indicate that the guest will be deleted after it stops. 3632 userInfo.guestToRemove = true; 3633 } 3634 } 3635 } 3636 } 3637 3638 @Override 3639 public UserInfo createUserEvenWhenDisallowed(String name, int flags) { 3640 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL, null); 3641 // Keep this in sync with UserManager.createUser 3642 if (user != null && !user.isAdmin()) { 3643 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3644 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3645 } 3646 return user; 3647 } 3648 3649 @Override 3650 public boolean removeUserEvenWhenDisallowed(int userId) { 3651 return removeUserUnchecked(userId); 3652 } 3653 3654 @Override 3655 public boolean isUserRunning(int userId) { 3656 synchronized (mUserStates) { 3657 return mUserStates.get(userId, -1) >= 0; 3658 } 3659 } 3660 3661 @Override 3662 public void setUserState(int userId, int userState) { 3663 synchronized (mUserStates) { 3664 mUserStates.put(userId, userState); 3665 } 3666 } 3667 3668 @Override 3669 public void removeUserState(int userId) { 3670 synchronized (mUserStates) { 3671 mUserStates.delete(userId); 3672 } 3673 } 3674 3675 @Override 3676 public boolean isUserUnlockingOrUnlocked(int userId) { 3677 synchronized (mUserStates) { 3678 int state = mUserStates.get(userId, -1); 3679 return (state == UserState.STATE_RUNNING_UNLOCKING) 3680 || (state == UserState.STATE_RUNNING_UNLOCKED); 3681 } 3682 } 3683 3684 @Override 3685 public boolean isUserUnlocked(int userId) { 3686 synchronized (mUserStates) { 3687 int state = mUserStates.get(userId, -1); 3688 return state == UserState.STATE_RUNNING_UNLOCKED; 3689 } 3690 } 3691 } 3692 3693 /* Remove all the users except of the system one. */ 3694 private void removeNonSystemUsers() { 3695 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3696 synchronized (mUsersLock) { 3697 final int userSize = mUsers.size(); 3698 for (int i = 0; i < userSize; i++) { 3699 UserInfo ui = mUsers.valueAt(i).info; 3700 if (ui.id != UserHandle.USER_SYSTEM) { 3701 usersToRemove.add(ui); 3702 } 3703 } 3704 } 3705 for (UserInfo ui: usersToRemove) { 3706 removeUser(ui.id); 3707 } 3708 } 3709 3710 private class Shell extends ShellCommand { 3711 @Override 3712 public int onCommand(String cmd) { 3713 return onShellCommand(this, cmd); 3714 } 3715 3716 @Override 3717 public void onHelp() { 3718 final PrintWriter pw = getOutPrintWriter(); 3719 pw.println("User manager (user) commands:"); 3720 pw.println(" help"); 3721 pw.println(" Print this help text."); 3722 pw.println(""); 3723 pw.println(" list"); 3724 pw.println(" Prints all users on the system."); 3725 } 3726 } 3727 3728 private static void debug(String message) { 3729 Log.d(LOG_TAG, message + 3730 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3731 } 3732 3733 @VisibleForTesting 3734 static int getMaxManagedProfiles() { 3735 // Allow overriding max managed profiles on debuggable builds for testing 3736 // of multiple profiles. 3737 if (!Build.IS_DEBUGGABLE) { 3738 return MAX_MANAGED_PROFILES; 3739 } else { 3740 return SystemProperties.getInt("persist.sys.max_profiles", 3741 MAX_MANAGED_PROFILES); 3742 } 3743 } 3744 3745 @VisibleForTesting 3746 int getFreeProfileBadgeLU(int parentUserId) { 3747 int maxManagedProfiles = getMaxManagedProfiles(); 3748 boolean[] usedBadges = new boolean[maxManagedProfiles]; 3749 final int userSize = mUsers.size(); 3750 for (int i = 0; i < userSize; i++) { 3751 UserInfo ui = mUsers.valueAt(i).info; 3752 // Check which badge indexes are already used by this profile group. 3753 if (ui.isManagedProfile() 3754 && ui.profileGroupId == parentUserId 3755 && !mRemovingUserIds.get(ui.id) 3756 && ui.profileBadge < maxManagedProfiles) { 3757 usedBadges[ui.profileBadge] = true; 3758 } 3759 } 3760 for (int i = 0; i < maxManagedProfiles; i++) { 3761 if (!usedBadges[i]) { 3762 return i; 3763 } 3764 } 3765 return 0; 3766 } 3767 3768 /** 3769 * Checks if the given user has a managed profile associated with it. 3770 * @param userId The parent user 3771 * @return 3772 */ 3773 boolean hasManagedProfile(int userId) { 3774 synchronized (mUsersLock) { 3775 UserInfo userInfo = getUserInfoLU(userId); 3776 final int userSize = mUsers.size(); 3777 for (int i = 0; i < userSize; i++) { 3778 UserInfo profile = mUsers.valueAt(i).info; 3779 if (userId != profile.id && isProfileOf(userInfo, profile)) { 3780 return true; 3781 } 3782 } 3783 return false; 3784 } 3785 } 3786} 3787