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 17 package com.android.server.pm; 18 19 import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS; 20 import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; 21 22 import android.Manifest; 23 import android.annotation.NonNull; 24 import android.annotation.Nullable; 25 import android.annotation.UserIdInt; 26 import android.app.Activity; 27 import android.app.ActivityManager; 28 import android.app.ActivityManagerInternal; 29 import android.app.ActivityManagerNative; 30 import android.app.AppGlobals; 31 import android.app.IActivityManager; 32 import android.app.IStopUserCallback; 33 import android.app.KeyguardManager; 34 import android.app.PendingIntent; 35 import android.content.BroadcastReceiver; 36 import android.content.Context; 37 import android.content.Intent; 38 import android.content.IntentFilter; 39 import android.content.IntentSender; 40 import android.content.pm.PackageManager; 41 import android.content.pm.PackageManager.NameNotFoundException; 42 import android.content.pm.UserInfo; 43 import android.content.res.Resources; 44 import android.graphics.Bitmap; 45 import android.os.Binder; 46 import android.os.Build; 47 import android.os.Bundle; 48 import android.os.Debug; 49 import android.os.Environment; 50 import android.os.FileUtils; 51 import android.os.Handler; 52 import android.os.IBinder; 53 import android.os.IUserManager; 54 import android.os.Message; 55 import android.os.ParcelFileDescriptor; 56 import android.os.Parcelable; 57 import android.os.PersistableBundle; 58 import android.os.Process; 59 import android.os.RemoteException; 60 import android.os.ResultReceiver; 61 import android.os.SELinux; 62 import android.os.ServiceManager; 63 import android.os.ShellCallback; 64 import android.os.ShellCommand; 65 import android.os.SystemProperties; 66 import android.os.UserHandle; 67 import android.os.UserManager; 68 import android.os.UserManager.EnforcingUser; 69 import android.os.UserManagerInternal; 70 import android.os.UserManagerInternal.UserRestrictionsListener; 71 import android.os.storage.StorageManager; 72 import android.security.GateKeeper; 73 import android.service.gatekeeper.IGateKeeperService; 74 import android.system.ErrnoException; 75 import android.system.Os; 76 import android.system.OsConstants; 77 import android.text.TextUtils; 78 import android.util.AtomicFile; 79 import android.util.IntArray; 80 import android.util.Log; 81 import android.util.Slog; 82 import android.util.SparseArray; 83 import android.util.SparseBooleanArray; 84 import android.util.SparseIntArray; 85 import android.util.TimeUtils; 86 import android.util.Xml; 87 88 import com.android.internal.annotations.GuardedBy; 89 import com.android.internal.annotations.VisibleForTesting; 90 import com.android.internal.app.IAppOpsService; 91 import com.android.internal.logging.MetricsLogger; 92 import com.android.internal.util.DumpUtils; 93 import com.android.internal.util.FastXmlSerializer; 94 import com.android.internal.util.Preconditions; 95 import com.android.internal.util.XmlUtils; 96 import com.android.internal.widget.LockPatternUtils; 97 import com.android.server.LocalServices; 98 import com.android.server.LockGuard; 99 import com.android.server.SystemService; 100 import com.android.server.am.UserState; 101 import com.android.server.storage.DeviceStorageMonitorInternal; 102 103 import libcore.io.IoUtils; 104 import libcore.util.Objects; 105 106 import org.xmlpull.v1.XmlPullParser; 107 import org.xmlpull.v1.XmlPullParserException; 108 import org.xmlpull.v1.XmlSerializer; 109 110 import java.io.BufferedOutputStream; 111 import java.io.File; 112 import java.io.FileDescriptor; 113 import java.io.FileInputStream; 114 import java.io.FileNotFoundException; 115 import java.io.FileOutputStream; 116 import java.io.InputStream; 117 import java.io.OutputStream; 118 import java.io.IOException; 119 import java.io.PrintWriter; 120 import java.nio.charset.StandardCharsets; 121 import java.util.ArrayList; 122 import java.util.Collections; 123 import java.util.LinkedList; 124 import java.util.List; 125 126 /** 127 * Service for {@link UserManager}. 128 * 129 * Method naming convention: 130 * <ul> 131 * <li> Methods suffixed with "LAr" should be called within the {@link #mAppRestrictionsLock} lock. 132 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 133 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 134 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 135 * </ul> 136 */ 137 public class UserManagerService extends IUserManager.Stub { 138 139 private static final String LOG_TAG = "UserManagerService"; 140 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 141 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 142 // Can be used for manual testing of id recycling 143 private static final boolean RELEASE_DELETED_USER_ID = false; // DO NOT SUBMIT WITH TRUE 144 145 private static final String TAG_NAME = "name"; 146 private static final String TAG_ACCOUNT = "account"; 147 private static final String ATTR_FLAGS = "flags"; 148 private static final String ATTR_ICON_PATH = "icon"; 149 private static final String ATTR_ID = "id"; 150 private static final String ATTR_CREATION_TIME = "created"; 151 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 152 private static final String ATTR_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint"; 153 private static final String ATTR_SERIAL_NO = "serialNumber"; 154 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 155 private static final String ATTR_PARTIAL = "partial"; 156 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 157 private static final String ATTR_USER_VERSION = "version"; 158 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 159 private static final String ATTR_PROFILE_BADGE = "profileBadge"; 160 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 161 private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; 162 private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; 163 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 164 private static final String TAG_USERS = "users"; 165 private static final String TAG_USER = "user"; 166 private static final String TAG_RESTRICTIONS = "restrictions"; 167 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 168 private static final String TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS = 169 "device_policy_global_restrictions"; 170 /** Legacy name for device owner id tag. */ 171 private static final String TAG_GLOBAL_RESTRICTION_OWNER_ID = "globalRestrictionOwnerUserId"; 172 private static final String TAG_DEVICE_OWNER_USER_ID = "deviceOwnerUserId"; 173 private static final String TAG_ENTRY = "entry"; 174 private static final String TAG_VALUE = "value"; 175 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 176 private static final String ATTR_KEY = "key"; 177 private static final String ATTR_VALUE_TYPE = "type"; 178 private static final String ATTR_MULTIPLE = "m"; 179 180 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 181 private static final String ATTR_TYPE_STRING = "s"; 182 private static final String ATTR_TYPE_BOOLEAN = "b"; 183 private static final String ATTR_TYPE_INTEGER = "i"; 184 private static final String ATTR_TYPE_BUNDLE = "B"; 185 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 186 187 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 188 private static final String USER_LIST_FILENAME = "userlist.xml"; 189 private static final String USER_PHOTO_FILENAME = "photo.png"; 190 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 191 192 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 193 private static final String XML_SUFFIX = ".xml"; 194 195 private static final int ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION = 196 UserInfo.FLAG_MANAGED_PROFILE 197 | UserInfo.FLAG_EPHEMERAL 198 | UserInfo.FLAG_RESTRICTED 199 | UserInfo.FLAG_GUEST 200 | UserInfo.FLAG_DEMO; 201 202 @VisibleForTesting 203 static final int MIN_USER_ID = 10; 204 // We need to keep process uid within Integer.MAX_VALUE. 205 @VisibleForTesting 206 static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 207 208 // Max size of the queue of recently removed users 209 @VisibleForTesting 210 static final int MAX_RECENTLY_REMOVED_IDS_SIZE = 100; 211 212 private static final int USER_VERSION = 7; 213 214 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 215 216 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 217 // without first making sure that the rest of the framework is prepared for it. 218 @VisibleForTesting 219 static final int MAX_MANAGED_PROFILES = 1; 220 221 static final int WRITE_USER_MSG = 1; 222 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 223 224 // Tron counters 225 private static final String TRON_GUEST_CREATED = "users_guest_created"; 226 private static final String TRON_USER_CREATED = "users_user_created"; 227 private static final String TRON_DEMO_CREATED = "users_demo_created"; 228 229 private final Context mContext; 230 private final PackageManagerService mPm; 231 private final Object mPackagesLock; 232 private final UserDataPreparer mUserDataPreparer; 233 // Short-term lock for internal state, when interaction/sync with PM is not required 234 private final Object mUsersLock = LockGuard.installNewLock(LockGuard.INDEX_USER); 235 private final Object mRestrictionsLock = new Object(); 236 // Used for serializing access to app restriction files 237 private final Object mAppRestrictionsLock = new Object(); 238 239 private final Handler mHandler; 240 241 private final File mUsersDir; 242 private final File mUserListFile; 243 244 private static final IBinder mUserRestriconToken = new Binder(); 245 246 /** 247 * User-related information that is used for persisting to flash. Only UserInfo is 248 * directly exposed to other system apps. 249 */ 250 @VisibleForTesting 251 static class UserData { 252 // Basic user information and properties 253 UserInfo info; 254 // Account name used when there is a strong association between a user and an account 255 String account; 256 // Account information for seeding into a newly created user. This could also be 257 // used for login validation for an existing user, for updating their credentials. 258 // In the latter case, data may not need to be persisted as it is only valid for the 259 // current login session. 260 String seedAccountName; 261 String seedAccountType; 262 PersistableBundle seedAccountOptions; 263 // Whether to perist the seed account information to be available after a boot 264 boolean persistSeedData; 265 266 void clearSeedAccountData() { 267 seedAccountName = null; 268 seedAccountType = null; 269 seedAccountOptions = null; 270 persistSeedData = false; 271 } 272 } 273 274 @GuardedBy("mUsersLock") 275 private final SparseArray<UserData> mUsers = new SparseArray<>(); 276 277 /** 278 * User restrictions set via UserManager. This doesn't include restrictions set by 279 * device owner / profile owners. Only non-empty restriction bundles are stored. 280 * 281 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 282 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 283 * maybe shared between {@link #mBaseUserRestrictions} and 284 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 285 * (Otherwise we won't be able to detect what restrictions have changed in 286 * {@link #updateUserRestrictionsInternalLR}. 287 */ 288 @GuardedBy("mRestrictionsLock") 289 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 290 291 /** 292 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 293 * with device / profile owner restrictions. We'll initialize it lazily; use 294 * {@link #getEffectiveUserRestrictions} to access it. 295 * 296 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 297 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 298 * maybe shared between {@link #mBaseUserRestrictions} and 299 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 300 * (Otherwise we won't be able to detect what restrictions have changed in 301 * {@link #updateUserRestrictionsInternalLR}. 302 */ 303 @GuardedBy("mRestrictionsLock") 304 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 305 306 /** 307 * User restrictions that have already been applied in 308 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 309 * that have changed since the last 310 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 311 */ 312 @GuardedBy("mRestrictionsLock") 313 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 314 315 /** 316 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 317 * that should be applied to all users, including guests. Only non-empty restriction bundles are 318 * stored. 319 */ 320 @GuardedBy("mRestrictionsLock") 321 private final SparseArray<Bundle> mDevicePolicyGlobalUserRestrictions = new SparseArray<>(); 322 323 /** 324 * Id of the user that set global restrictions. 325 */ 326 @GuardedBy("mRestrictionsLock") 327 private int mDeviceOwnerUserId = UserHandle.USER_NULL; 328 329 /** 330 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 331 * for each user. Only non-empty restriction bundles are stored. 332 */ 333 @GuardedBy("mRestrictionsLock") 334 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 335 336 @GuardedBy("mGuestRestrictions") 337 private final Bundle mGuestRestrictions = new Bundle(); 338 339 /** 340 * Set of user IDs being actively removed. Removed IDs linger in this set 341 * for several seconds to work around a VFS caching issue. 342 * Use {@link #addRemovingUserIdLocked(int)} to add elements to this array 343 */ 344 @GuardedBy("mUsersLock") 345 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 346 347 /** 348 * Queue of recently removed userIds. Used for recycling of userIds 349 */ 350 @GuardedBy("mUsersLock") 351 private final LinkedList<Integer> mRecentlyRemovedIds = new LinkedList<>(); 352 353 @GuardedBy("mUsersLock") 354 private int[] mUserIds; 355 @GuardedBy("mPackagesLock") 356 private int mNextSerialNumber; 357 private int mUserVersion = 0; 358 359 private IAppOpsService mAppOpsService; 360 361 private final LocalService mLocalService; 362 363 @GuardedBy("mUsersLock") 364 private boolean mIsDeviceManaged; 365 366 @GuardedBy("mUsersLock") 367 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 368 369 @GuardedBy("mUserRestrictionsListeners") 370 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 371 new ArrayList<>(); 372 373 private final LockPatternUtils mLockPatternUtils; 374 375 private final String ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK = 376 "com.android.server.pm.DISABLE_QUIET_MODE_AFTER_UNLOCK"; 377 378 private final BroadcastReceiver mDisableQuietModeCallback = new BroadcastReceiver() { 379 @Override 380 public void onReceive(Context context, Intent intent) { 381 if (ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK.equals(intent.getAction())) { 382 final IntentSender target = intent.getParcelableExtra(Intent.EXTRA_INTENT); 383 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_ID, 0); 384 setQuietModeEnabled(userHandle, false); 385 if (target != null) { 386 try { 387 mContext.startIntentSender(target, null, 0, 0, 0); 388 } catch (IntentSender.SendIntentException e) { 389 /* ignore */ 390 } 391 } 392 } 393 } 394 }; 395 396 /** 397 * Whether all users should be created ephemeral. 398 */ 399 @GuardedBy("mUsersLock") 400 private boolean mForceEphemeralUsers; 401 402 @GuardedBy("mUserStates") 403 private final SparseIntArray mUserStates = new SparseIntArray(); 404 405 private static UserManagerService sInstance; 406 407 public static UserManagerService getInstance() { 408 synchronized (UserManagerService.class) { 409 return sInstance; 410 } 411 } 412 413 public static class LifeCycle extends SystemService { 414 415 private UserManagerService mUms; 416 417 /** 418 * @param context 419 */ 420 public LifeCycle(Context context) { 421 super(context); 422 } 423 424 @Override 425 public void onStart() { 426 mUms = UserManagerService.getInstance(); 427 publishBinderService(Context.USER_SERVICE, mUms); 428 } 429 430 @Override 431 public void onBootPhase(int phase) { 432 if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) { 433 mUms.cleanupPartialUsers(); 434 } 435 } 436 } 437 438 // TODO b/28848102 Add support for test dependencies injection 439 @VisibleForTesting 440 UserManagerService(Context context) { 441 this(context, null, null, new Object(), context.getCacheDir()); 442 } 443 444 /** 445 * Called by package manager to create the service. This is closely 446 * associated with the package manager, and the given lock is the 447 * package manager's own lock. 448 */ 449 UserManagerService(Context context, PackageManagerService pm, UserDataPreparer userDataPreparer, 450 Object packagesLock) { 451 this(context, pm, userDataPreparer, packagesLock, Environment.getDataDirectory()); 452 } 453 454 private UserManagerService(Context context, PackageManagerService pm, 455 UserDataPreparer userDataPreparer, Object packagesLock, File dataDir) { 456 mContext = context; 457 mPm = pm; 458 mPackagesLock = packagesLock; 459 mHandler = new MainHandler(); 460 mUserDataPreparer = userDataPreparer; 461 synchronized (mPackagesLock) { 462 mUsersDir = new File(dataDir, USER_INFO_DIR); 463 mUsersDir.mkdirs(); 464 // Make zeroth user directory, for services to migrate their files to that location 465 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 466 userZeroDir.mkdirs(); 467 FileUtils.setPermissions(mUsersDir.toString(), 468 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 469 -1, -1); 470 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 471 initDefaultGuestRestrictions(); 472 readUserListLP(); 473 sInstance = this; 474 } 475 mLocalService = new LocalService(); 476 LocalServices.addService(UserManagerInternal.class, mLocalService); 477 mLockPatternUtils = new LockPatternUtils(mContext); 478 mUserStates.put(UserHandle.USER_SYSTEM, UserState.STATE_BOOTING); 479 } 480 481 void systemReady() { 482 mAppOpsService = IAppOpsService.Stub.asInterface( 483 ServiceManager.getService(Context.APP_OPS_SERVICE)); 484 485 synchronized (mRestrictionsLock) { 486 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 487 } 488 489 UserInfo currentGuestUser = findCurrentGuestUser(); 490 if (currentGuestUser != null && !hasUserRestriction( 491 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 492 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 493 // to it, in case this guest was created in a previous version where this 494 // user restriction was not a default guest restriction. 495 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 496 } 497 498 mContext.registerReceiver(mDisableQuietModeCallback, 499 new IntentFilter(ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK), 500 null, mHandler); 501 } 502 503 void cleanupPartialUsers() { 504 // Prune out any partially created, partially removed and ephemeral users. 505 ArrayList<UserInfo> partials = new ArrayList<>(); 506 synchronized (mUsersLock) { 507 final int userSize = mUsers.size(); 508 for (int i = 0; i < userSize; i++) { 509 UserInfo ui = mUsers.valueAt(i).info; 510 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 511 partials.add(ui); 512 addRemovingUserIdLocked(ui.id); 513 ui.partial = true; 514 } 515 } 516 } 517 final int partialsSize = partials.size(); 518 for (int i = 0; i < partialsSize; i++) { 519 UserInfo ui = partials.get(i); 520 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 521 + " (name=" + ui.name + ")"); 522 removeUserState(ui.id); 523 } 524 } 525 526 @Override 527 public String getUserAccount(int userId) { 528 checkManageUserAndAcrossUsersFullPermission("get user account"); 529 synchronized (mUsersLock) { 530 return mUsers.get(userId).account; 531 } 532 } 533 534 @Override 535 public void setUserAccount(int userId, String accountName) { 536 checkManageUserAndAcrossUsersFullPermission("set user account"); 537 UserData userToUpdate = null; 538 synchronized (mPackagesLock) { 539 synchronized (mUsersLock) { 540 final UserData userData = mUsers.get(userId); 541 if (userData == null) { 542 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 543 return; 544 } 545 String currentAccount = userData.account; 546 if (!Objects.equal(currentAccount, accountName)) { 547 userData.account = accountName; 548 userToUpdate = userData; 549 } 550 } 551 552 if (userToUpdate != null) { 553 writeUserLP(userToUpdate); 554 } 555 } 556 } 557 558 @Override 559 public UserInfo getPrimaryUser() { 560 checkManageUsersPermission("query users"); 561 synchronized (mUsersLock) { 562 final int userSize = mUsers.size(); 563 for (int i = 0; i < userSize; i++) { 564 UserInfo ui = mUsers.valueAt(i).info; 565 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 566 return ui; 567 } 568 } 569 } 570 return null; 571 } 572 573 @Override 574 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 575 checkManageOrCreateUsersPermission("query users"); 576 synchronized (mUsersLock) { 577 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 578 final int userSize = mUsers.size(); 579 for (int i = 0; i < userSize; i++) { 580 UserInfo ui = mUsers.valueAt(i).info; 581 if (ui.partial) { 582 continue; 583 } 584 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 585 users.add(userWithName(ui)); 586 } 587 } 588 return users; 589 } 590 } 591 592 @Override 593 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 594 boolean returnFullInfo = true; 595 if (userId != UserHandle.getCallingUserId()) { 596 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 597 } else { 598 returnFullInfo = hasManageUsersPermission(); 599 } 600 final long ident = Binder.clearCallingIdentity(); 601 try { 602 synchronized (mUsersLock) { 603 return getProfilesLU(userId, enabledOnly, returnFullInfo); 604 } 605 } finally { 606 Binder.restoreCallingIdentity(ident); 607 } 608 } 609 610 @Override 611 public int[] getProfileIds(int userId, boolean enabledOnly) { 612 if (userId != UserHandle.getCallingUserId()) { 613 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 614 } 615 final long ident = Binder.clearCallingIdentity(); 616 try { 617 synchronized (mUsersLock) { 618 return getProfileIdsLU(userId, enabledOnly).toArray(); 619 } 620 } finally { 621 Binder.restoreCallingIdentity(ident); 622 } 623 } 624 625 /** Assume permissions already checked and caller's identity cleared */ 626 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 627 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 628 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 629 for (int i = 0; i < profileIds.size(); i++) { 630 int profileId = profileIds.get(i); 631 UserInfo userInfo = mUsers.get(profileId).info; 632 // If full info is not required - clear PII data to prevent 3P apps from reading it 633 if (!fullInfo) { 634 userInfo = new UserInfo(userInfo); 635 userInfo.name = null; 636 userInfo.iconPath = null; 637 } else { 638 userInfo = userWithName(userInfo); 639 } 640 users.add(userInfo); 641 } 642 return users; 643 } 644 645 /** 646 * Assume permissions already checked and caller's identity cleared 647 */ 648 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 649 UserInfo user = getUserInfoLU(userId); 650 IntArray result = new IntArray(mUsers.size()); 651 if (user == null) { 652 // Probably a dying user 653 return result; 654 } 655 final int userSize = mUsers.size(); 656 for (int i = 0; i < userSize; i++) { 657 UserInfo profile = mUsers.valueAt(i).info; 658 if (!isProfileOf(user, profile)) { 659 continue; 660 } 661 if (enabledOnly && !profile.isEnabled()) { 662 continue; 663 } 664 if (mRemovingUserIds.get(profile.id)) { 665 continue; 666 } 667 if (profile.partial) { 668 continue; 669 } 670 result.add(profile.id); 671 } 672 return result; 673 } 674 675 @Override 676 public int getCredentialOwnerProfile(int userHandle) { 677 checkManageUsersPermission("get the credential owner"); 678 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 679 synchronized (mUsersLock) { 680 UserInfo profileParent = getProfileParentLU(userHandle); 681 if (profileParent != null) { 682 return profileParent.id; 683 } 684 } 685 } 686 687 return userHandle; 688 } 689 690 @Override 691 public boolean isSameProfileGroup(int userId, int otherUserId) { 692 if (userId == otherUserId) return true; 693 checkManageUsersPermission("check if in the same profile group"); 694 return isSameProfileGroupNoChecks(userId, otherUserId); 695 } 696 697 private boolean isSameProfileGroupNoChecks(int userId, int otherUserId) { 698 synchronized (mUsersLock) { 699 UserInfo userInfo = getUserInfoLU(userId); 700 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 701 return false; 702 } 703 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 704 if (otherUserInfo == null 705 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 706 return false; 707 } 708 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 709 } 710 } 711 712 @Override 713 public UserInfo getProfileParent(int userHandle) { 714 checkManageUsersPermission("get the profile parent"); 715 synchronized (mUsersLock) { 716 return getProfileParentLU(userHandle); 717 } 718 } 719 720 private UserInfo getProfileParentLU(int userHandle) { 721 UserInfo profile = getUserInfoLU(userHandle); 722 if (profile == null) { 723 return null; 724 } 725 int parentUserId = profile.profileGroupId; 726 if (parentUserId == userHandle || parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 727 return null; 728 } else { 729 return getUserInfoLU(parentUserId); 730 } 731 } 732 733 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 734 return user.id == profile.id || 735 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 736 && user.profileGroupId == profile.profileGroupId); 737 } 738 739 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 740 UserHandle parentHandle, boolean inQuietMode) { 741 Intent intent = new Intent(); 742 if (inQuietMode) { 743 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 744 } else { 745 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 746 } 747 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 748 intent.putExtra(Intent.EXTRA_USER, profileHandle); 749 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 750 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 751 mContext.sendBroadcastAsUser(intent, parentHandle); 752 } 753 754 @Override 755 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { 756 checkManageUsersPermission("silence profile"); 757 boolean changed = false; 758 UserInfo profile, parent; 759 synchronized (mPackagesLock) { 760 synchronized (mUsersLock) { 761 profile = getUserInfoLU(userHandle); 762 parent = getProfileParentLU(userHandle); 763 764 } 765 if (profile == null || !profile.isManagedProfile()) { 766 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 767 } 768 if (profile.isQuietModeEnabled() != enableQuietMode) { 769 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 770 writeUserLP(getUserDataLU(profile.id)); 771 changed = true; 772 } 773 } 774 if (changed) { 775 long identity = Binder.clearCallingIdentity(); 776 try { 777 if (enableQuietMode) { 778 ActivityManager.getService().stopUser(userHandle, /* force */true, null); 779 LocalServices.getService(ActivityManagerInternal.class) 780 .killForegroundAppsForUser(userHandle); 781 } else { 782 ActivityManager.getService().startUserInBackground(userHandle); 783 } 784 } catch (RemoteException e) { 785 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 786 } finally { 787 Binder.restoreCallingIdentity(identity); 788 } 789 790 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 791 enableQuietMode); 792 } 793 } 794 795 @Override 796 public boolean isQuietModeEnabled(int userHandle) { 797 synchronized (mPackagesLock) { 798 UserInfo info; 799 synchronized (mUsersLock) { 800 info = getUserInfoLU(userHandle); 801 } 802 if (info == null || !info.isManagedProfile()) { 803 return false; 804 } 805 return info.isQuietModeEnabled(); 806 } 807 } 808 809 @Override 810 public boolean trySetQuietModeDisabled(int userHandle, IntentSender target) { 811 checkManageUsersPermission("silence profile"); 812 if (StorageManager.isUserKeyUnlocked(userHandle) 813 || !mLockPatternUtils.isSecure(userHandle)) { 814 // if the user is already unlocked, no need to show a profile challenge 815 setQuietModeEnabled(userHandle, false); 816 return true; 817 } 818 819 long identity = Binder.clearCallingIdentity(); 820 try { 821 // otherwise, we show a profile challenge to trigger decryption of the user 822 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 823 Context.KEYGUARD_SERVICE); 824 // We should use userHandle not credentialOwnerUserId here, as even if it is unified 825 // lock, confirm screenlock page will know and show personal challenge, and unlock 826 // work profile when personal challenge is correct 827 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 828 userHandle); 829 if (unlockIntent == null) { 830 return false; 831 } 832 final Intent callBackIntent = new Intent( 833 ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK); 834 if (target != null) { 835 callBackIntent.putExtra(Intent.EXTRA_INTENT, target); 836 } 837 callBackIntent.putExtra(Intent.EXTRA_USER_ID, userHandle); 838 callBackIntent.setPackage(mContext.getPackageName()); 839 callBackIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 840 final PendingIntent pendingIntent = PendingIntent.getBroadcast( 841 mContext, 842 0, 843 callBackIntent, 844 PendingIntent.FLAG_CANCEL_CURRENT | 845 PendingIntent.FLAG_ONE_SHOT | 846 PendingIntent.FLAG_IMMUTABLE); 847 // After unlocking the challenge, it will disable quiet mode and run the original 848 // intentSender 849 unlockIntent.putExtra(Intent.EXTRA_INTENT, pendingIntent.getIntentSender()); 850 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 851 mContext.startActivity(unlockIntent); 852 } finally { 853 Binder.restoreCallingIdentity(identity); 854 } 855 return false; 856 } 857 858 @Override 859 public void setUserEnabled(int userId) { 860 checkManageUsersPermission("enable user"); 861 synchronized (mPackagesLock) { 862 UserInfo info; 863 synchronized (mUsersLock) { 864 info = getUserInfoLU(userId); 865 } 866 if (info != null && !info.isEnabled()) { 867 info.flags ^= UserInfo.FLAG_DISABLED; 868 writeUserLP(getUserDataLU(info.id)); 869 } 870 } 871 } 872 873 /** 874 * Evicts a user's CE key by stopping and restarting the user. 875 * 876 * The key is evicted automatically by the user controller when the user has stopped. 877 */ 878 @Override 879 public void evictCredentialEncryptionKey(@UserIdInt int userId) { 880 checkManageUsersPermission("evict CE key"); 881 final IActivityManager am = ActivityManagerNative.getDefault(); 882 final long identity = Binder.clearCallingIdentity(); 883 try { 884 am.restartUserInBackground(userId); 885 } catch (RemoteException re) { 886 throw re.rethrowAsRuntimeException(); 887 } finally { 888 Binder.restoreCallingIdentity(identity); 889 } 890 } 891 892 @Override 893 public UserInfo getUserInfo(int userId) { 894 checkManageOrCreateUsersPermission("query user"); 895 synchronized (mUsersLock) { 896 return userWithName(getUserInfoLU(userId)); 897 } 898 } 899 900 /** 901 * Returns a UserInfo object with the name filled in, for Owner, or the original 902 * if the name is already set. 903 */ 904 private UserInfo userWithName(UserInfo orig) { 905 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 906 UserInfo withName = new UserInfo(orig); 907 withName.name = getOwnerName(); 908 return withName; 909 } else { 910 return orig; 911 } 912 } 913 914 @Override 915 public int getManagedProfileBadge(@UserIdInt int userId) { 916 int callingUserId = UserHandle.getCallingUserId(); 917 if (callingUserId != userId && !hasManageUsersPermission()) { 918 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 919 throw new SecurityException( 920 "You need MANAGE_USERS permission to: check if specified user a " + 921 "managed profile outside your profile group"); 922 } 923 } 924 synchronized (mUsersLock) { 925 UserInfo userInfo = getUserInfoLU(userId); 926 return userInfo != null ? userInfo.profileBadge : 0; 927 } 928 } 929 930 @Override 931 public boolean isManagedProfile(int userId) { 932 int callingUserId = UserHandle.getCallingUserId(); 933 if (callingUserId != userId && !hasManageUsersPermission()) { 934 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 935 throw new SecurityException( 936 "You need MANAGE_USERS permission to: check if specified user a " + 937 "managed profile outside your profile group"); 938 } 939 } 940 synchronized (mUsersLock) { 941 UserInfo userInfo = getUserInfoLU(userId); 942 return userInfo != null && userInfo.isManagedProfile(); 943 } 944 } 945 946 @Override 947 public boolean isUserUnlockingOrUnlocked(int userId) { 948 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlockingOrUnlocked"); 949 return mLocalService.isUserUnlockingOrUnlocked(userId); 950 } 951 952 @Override 953 public boolean isUserUnlocked(int userId) { 954 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlocked"); 955 return mLocalService.isUserUnlocked(userId); 956 } 957 958 @Override 959 public boolean isUserRunning(int userId) { 960 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserRunning"); 961 return mLocalService.isUserRunning(userId); 962 } 963 964 private void checkManageOrInteractPermIfCallerInOtherProfileGroup(int userId, String name) { 965 int callingUserId = UserHandle.getCallingUserId(); 966 if (callingUserId == userId || isSameProfileGroupNoChecks(callingUserId, userId) || 967 hasManageUsersPermission()) { 968 return; 969 } 970 if (ActivityManager.checkComponentPermission(Manifest.permission.INTERACT_ACROSS_USERS, 971 Binder.getCallingUid(), -1, true) != PackageManager.PERMISSION_GRANTED) { 972 throw new SecurityException("You need INTERACT_ACROSS_USERS or MANAGE_USERS permission " 973 + "to: check " + name); 974 } 975 } 976 977 @Override 978 public boolean isDemoUser(int userId) { 979 int callingUserId = UserHandle.getCallingUserId(); 980 if (callingUserId != userId && !hasManageUsersPermission()) { 981 throw new SecurityException("You need MANAGE_USERS permission to query if u=" + userId 982 + " is a demo user"); 983 } 984 synchronized (mUsersLock) { 985 UserInfo userInfo = getUserInfoLU(userId); 986 return userInfo != null && userInfo.isDemo(); 987 } 988 } 989 990 @Override 991 public boolean isRestricted() { 992 synchronized (mUsersLock) { 993 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 994 } 995 } 996 997 @Override 998 public boolean canHaveRestrictedProfile(int userId) { 999 checkManageUsersPermission("canHaveRestrictedProfile"); 1000 synchronized (mUsersLock) { 1001 final UserInfo userInfo = getUserInfoLU(userId); 1002 if (userInfo == null || !userInfo.canHaveProfile()) { 1003 return false; 1004 } 1005 if (!userInfo.isAdmin()) { 1006 return false; 1007 } 1008 // restricted profile can be created if there is no DO set and the admin user has no PO; 1009 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 1010 } 1011 } 1012 1013 /* 1014 * Should be locked on mUsers before calling this. 1015 */ 1016 private UserInfo getUserInfoLU(int userId) { 1017 final UserData userData = mUsers.get(userId); 1018 // If it is partial and not in the process of being removed, return as unknown user. 1019 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 1020 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 1021 return null; 1022 } 1023 return userData != null ? userData.info : null; 1024 } 1025 1026 private UserData getUserDataLU(int userId) { 1027 final UserData userData = mUsers.get(userId); 1028 // If it is partial and not in the process of being removed, return as unknown user. 1029 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 1030 return null; 1031 } 1032 return userData; 1033 } 1034 1035 /** 1036 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 1037 * <p>No permissions checking or any addition checks are made</p> 1038 */ 1039 private UserInfo getUserInfoNoChecks(int userId) { 1040 synchronized (mUsersLock) { 1041 final UserData userData = mUsers.get(userId); 1042 return userData != null ? userData.info : null; 1043 } 1044 } 1045 1046 /** 1047 * Obtains {@link #mUsersLock} and return UserData from mUsers. 1048 * <p>No permissions checking or any addition checks are made</p> 1049 */ 1050 private UserData getUserDataNoChecks(int userId) { 1051 synchronized (mUsersLock) { 1052 return mUsers.get(userId); 1053 } 1054 } 1055 1056 /** Called by PackageManagerService */ 1057 public boolean exists(int userId) { 1058 return getUserInfoNoChecks(userId) != null; 1059 } 1060 1061 @Override 1062 public void setUserName(int userId, String name) { 1063 checkManageUsersPermission("rename users"); 1064 boolean changed = false; 1065 synchronized (mPackagesLock) { 1066 UserData userData = getUserDataNoChecks(userId); 1067 if (userData == null || userData.info.partial) { 1068 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 1069 return; 1070 } 1071 if (name != null && !name.equals(userData.info.name)) { 1072 userData.info.name = name; 1073 writeUserLP(userData); 1074 changed = true; 1075 } 1076 } 1077 if (changed) { 1078 sendUserInfoChangedBroadcast(userId); 1079 } 1080 } 1081 1082 @Override 1083 public void setUserIcon(int userId, Bitmap bitmap) { 1084 checkManageUsersPermission("update users"); 1085 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 1086 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 1087 return; 1088 } 1089 mLocalService.setUserIcon(userId, bitmap); 1090 } 1091 1092 1093 1094 private void sendUserInfoChangedBroadcast(int userId) { 1095 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 1096 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 1097 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1098 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 1099 } 1100 1101 @Override 1102 public ParcelFileDescriptor getUserIcon(int targetUserId) { 1103 String iconPath; 1104 synchronized (mPackagesLock) { 1105 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 1106 if (targetUserInfo == null || targetUserInfo.partial) { 1107 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 1108 return null; 1109 } 1110 1111 final int callingUserId = UserHandle.getCallingUserId(); 1112 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 1113 final int targetGroupId = targetUserInfo.profileGroupId; 1114 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 1115 && callingGroupId == targetGroupId); 1116 if ((callingUserId != targetUserId) && !sameGroup) { 1117 checkManageUsersPermission("get the icon of a user who is not related"); 1118 } 1119 1120 if (targetUserInfo.iconPath == null) { 1121 return null; 1122 } 1123 iconPath = targetUserInfo.iconPath; 1124 } 1125 1126 try { 1127 return ParcelFileDescriptor.open( 1128 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 1129 } catch (FileNotFoundException e) { 1130 Log.e(LOG_TAG, "Couldn't find icon file", e); 1131 } 1132 return null; 1133 } 1134 1135 public void makeInitialized(int userId) { 1136 checkManageUsersPermission("makeInitialized"); 1137 boolean scheduleWriteUser = false; 1138 UserData userData; 1139 synchronized (mUsersLock) { 1140 userData = mUsers.get(userId); 1141 if (userData == null || userData.info.partial) { 1142 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 1143 return; 1144 } 1145 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1146 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1147 scheduleWriteUser = true; 1148 } 1149 } 1150 if (scheduleWriteUser) { 1151 scheduleWriteUser(userData); 1152 } 1153 } 1154 1155 /** 1156 * If default guest restrictions haven't been initialized yet, add the basic 1157 * restrictions. 1158 */ 1159 private void initDefaultGuestRestrictions() { 1160 synchronized (mGuestRestrictions) { 1161 if (mGuestRestrictions.isEmpty()) { 1162 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 1163 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 1164 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 1165 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 1166 } 1167 } 1168 } 1169 1170 @Override 1171 public Bundle getDefaultGuestRestrictions() { 1172 checkManageUsersPermission("getDefaultGuestRestrictions"); 1173 synchronized (mGuestRestrictions) { 1174 return new Bundle(mGuestRestrictions); 1175 } 1176 } 1177 1178 @Override 1179 public void setDefaultGuestRestrictions(Bundle restrictions) { 1180 checkManageUsersPermission("setDefaultGuestRestrictions"); 1181 synchronized (mGuestRestrictions) { 1182 mGuestRestrictions.clear(); 1183 mGuestRestrictions.putAll(restrictions); 1184 } 1185 synchronized (mPackagesLock) { 1186 writeUserListLP(); 1187 } 1188 } 1189 1190 /** 1191 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions} 1192 */ 1193 private void setDevicePolicyUserRestrictionsInner(int userId, @Nullable Bundle restrictions, 1194 boolean isDeviceOwner, int cameraRestrictionScope) { 1195 final Bundle global = new Bundle(); 1196 final Bundle local = new Bundle(); 1197 1198 // Sort restrictions into local and global ensuring they don't overlap. 1199 UserRestrictionsUtils.sortToGlobalAndLocal(restrictions, isDeviceOwner, 1200 cameraRestrictionScope, global, local); 1201 1202 boolean globalChanged, localChanged; 1203 synchronized (mRestrictionsLock) { 1204 // Update global and local restrictions if they were changed. 1205 globalChanged = updateRestrictionsIfNeededLR( 1206 userId, global, mDevicePolicyGlobalUserRestrictions); 1207 localChanged = updateRestrictionsIfNeededLR( 1208 userId, local, mDevicePolicyLocalUserRestrictions); 1209 1210 if (isDeviceOwner) { 1211 // Remember the global restriction owner userId to be able to make a distinction 1212 // in getUserRestrictionSource on who set local policies. 1213 mDeviceOwnerUserId = userId; 1214 } else { 1215 if (mDeviceOwnerUserId == userId) { 1216 // When profile owner sets restrictions it passes null global bundle and we 1217 // reset global restriction owner userId. 1218 // This means this user used to have DO, but now the DO is gone and the user 1219 // instead has PO. 1220 mDeviceOwnerUserId = UserHandle.USER_NULL; 1221 } 1222 } 1223 } 1224 if (DBG) { 1225 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1226 + " global=" + global + (globalChanged ? " (changed)" : "") 1227 + " local=" + local + (localChanged ? " (changed)" : "") 1228 ); 1229 } 1230 // Don't call them within the mRestrictionsLock. 1231 synchronized (mPackagesLock) { 1232 if (localChanged || globalChanged) { 1233 writeUserLP(getUserDataNoChecks(userId)); 1234 } 1235 } 1236 1237 synchronized (mRestrictionsLock) { 1238 if (globalChanged) { 1239 applyUserRestrictionsForAllUsersLR(); 1240 } else if (localChanged) { 1241 applyUserRestrictionsLR(userId); 1242 } 1243 } 1244 } 1245 1246 /** 1247 * Updates restriction bundle for a given user in a given restriction array. If new bundle is 1248 * empty, record is removed from the array. 1249 * @return whether restrictions bundle is different from the old one. 1250 */ 1251 private boolean updateRestrictionsIfNeededLR(int userId, @Nullable Bundle restrictions, 1252 SparseArray<Bundle> restrictionsArray) { 1253 final boolean changed = 1254 !UserRestrictionsUtils.areEqual(restrictionsArray.get(userId), restrictions); 1255 if (changed) { 1256 if (!UserRestrictionsUtils.isEmpty(restrictions)) { 1257 restrictionsArray.put(userId, restrictions); 1258 } else { 1259 restrictionsArray.delete(userId); 1260 } 1261 } 1262 return changed; 1263 } 1264 1265 @GuardedBy("mRestrictionsLock") 1266 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1267 final Bundle baseRestrictions = 1268 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1269 final Bundle global = UserRestrictionsUtils.mergeAll(mDevicePolicyGlobalUserRestrictions); 1270 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1271 1272 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1273 // Common case first. 1274 return baseRestrictions; 1275 } 1276 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1277 UserRestrictionsUtils.merge(effective, global); 1278 UserRestrictionsUtils.merge(effective, local); 1279 1280 return effective; 1281 } 1282 1283 @GuardedBy("mRestrictionsLock") 1284 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1285 if (DBG) { 1286 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1287 } 1288 mCachedEffectiveUserRestrictions.remove(userId); 1289 } 1290 1291 private Bundle getEffectiveUserRestrictions(int userId) { 1292 synchronized (mRestrictionsLock) { 1293 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1294 if (restrictions == null) { 1295 restrictions = computeEffectiveUserRestrictionsLR(userId); 1296 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1297 } 1298 return restrictions; 1299 } 1300 } 1301 1302 /** @return a specific user restriction that's in effect currently. */ 1303 @Override 1304 public boolean hasUserRestriction(String restrictionKey, int userId) { 1305 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1306 return false; 1307 } 1308 Bundle restrictions = getEffectiveUserRestrictions(userId); 1309 return restrictions != null && restrictions.getBoolean(restrictionKey); 1310 } 1311 1312 /** 1313 * @hide 1314 * 1315 * Returns who set a user restriction on a user. 1316 * Requires {@link android.Manifest.permission#MANAGE_USERS} permission. 1317 * @param restrictionKey the string key representing the restriction 1318 * @param userId the id of the user for whom to retrieve the restrictions. 1319 * @return The source of user restriction. Any combination of 1320 * {@link UserManager#RESTRICTION_NOT_SET}, 1321 * {@link UserManager#RESTRICTION_SOURCE_SYSTEM}, 1322 * {@link UserManager#RESTRICTION_SOURCE_DEVICE_OWNER} 1323 * and {@link UserManager#RESTRICTION_SOURCE_PROFILE_OWNER} 1324 */ 1325 @Override 1326 public int getUserRestrictionSource(String restrictionKey, int userId) { 1327 List<EnforcingUser> enforcingUsers = getUserRestrictionSources(restrictionKey, userId); 1328 // Get "bitwise or" of restriction sources for all enforcing users. 1329 int result = UserManager.RESTRICTION_NOT_SET; 1330 for (int i = enforcingUsers.size() - 1; i >= 0; i--) { 1331 result |= enforcingUsers.get(i).getUserRestrictionSource(); 1332 } 1333 return result; 1334 } 1335 1336 @Override 1337 public List<EnforcingUser> getUserRestrictionSources( 1338 String restrictionKey, @UserIdInt int userId) { 1339 checkManageUsersPermission("getUserRestrictionSource"); 1340 1341 // Shortcut for the most common case 1342 if (!hasUserRestriction(restrictionKey, userId)) { 1343 return Collections.emptyList(); 1344 } 1345 1346 final List<EnforcingUser> result = new ArrayList<>(); 1347 1348 // Check if it is base restriction. 1349 if (hasBaseUserRestriction(restrictionKey, userId)) { 1350 result.add(new EnforcingUser( 1351 UserHandle.USER_NULL, UserManager.RESTRICTION_SOURCE_SYSTEM)); 1352 } 1353 1354 synchronized (mRestrictionsLock) { 1355 // Check if it is set by profile owner. 1356 Bundle profileOwnerRestrictions = mDevicePolicyLocalUserRestrictions.get(userId); 1357 if (UserRestrictionsUtils.contains(profileOwnerRestrictions, restrictionKey)) { 1358 result.add(getEnforcingUserLocked(userId)); 1359 } 1360 1361 // Iterate over all users who enforce global restrictions. 1362 for (int i = mDevicePolicyGlobalUserRestrictions.size() - 1; i >= 0; i--) { 1363 Bundle globalRestrictions = mDevicePolicyGlobalUserRestrictions.valueAt(i); 1364 int profileUserId = mDevicePolicyGlobalUserRestrictions.keyAt(i); 1365 if (UserRestrictionsUtils.contains(globalRestrictions, restrictionKey)) { 1366 result.add(getEnforcingUserLocked(profileUserId)); 1367 } 1368 } 1369 } 1370 return result; 1371 } 1372 1373 private EnforcingUser getEnforcingUserLocked(@UserIdInt int userId) { 1374 int source = mDeviceOwnerUserId == userId ? UserManager.RESTRICTION_SOURCE_DEVICE_OWNER 1375 : UserManager.RESTRICTION_SOURCE_PROFILE_OWNER; 1376 return new EnforcingUser(userId, source); 1377 } 1378 1379 /** 1380 * @return UserRestrictions that are in effect currently. This always returns a new 1381 * {@link Bundle}. 1382 */ 1383 @Override 1384 public Bundle getUserRestrictions(int userId) { 1385 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1386 } 1387 1388 @Override 1389 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1390 checkManageUsersPermission("hasBaseUserRestriction"); 1391 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1392 return false; 1393 } 1394 synchronized (mRestrictionsLock) { 1395 Bundle bundle = mBaseUserRestrictions.get(userId); 1396 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1397 } 1398 } 1399 1400 @Override 1401 public void setUserRestriction(String key, boolean value, int userId) { 1402 checkManageUsersPermission("setUserRestriction"); 1403 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1404 return; 1405 } 1406 synchronized (mRestrictionsLock) { 1407 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1408 // a copy. 1409 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1410 mBaseUserRestrictions.get(userId)); 1411 newRestrictions.putBoolean(key, value); 1412 1413 updateUserRestrictionsInternalLR(newRestrictions, userId); 1414 } 1415 } 1416 1417 /** 1418 * Optionally updating user restrictions, calculate the effective user restrictions and also 1419 * propagate to other services and system settings. 1420 * 1421 * @param newBaseRestrictions User restrictions to set. 1422 * If null, will not update user restrictions and only does the propagation. 1423 * @param userId target user ID. 1424 */ 1425 @GuardedBy("mRestrictionsLock") 1426 private void updateUserRestrictionsInternalLR( 1427 @Nullable Bundle newBaseRestrictions, int userId) { 1428 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1429 mAppliedUserRestrictions.get(userId)); 1430 1431 // Update base restrictions. 1432 if (newBaseRestrictions != null) { 1433 // If newBaseRestrictions == the current one, it's probably a bug. 1434 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1435 1436 Preconditions.checkState(prevBaseRestrictions != newBaseRestrictions); 1437 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1438 != newBaseRestrictions); 1439 1440 if (updateRestrictionsIfNeededLR(userId, newBaseRestrictions, mBaseUserRestrictions)) { 1441 scheduleWriteUser(getUserDataNoChecks(userId)); 1442 } 1443 } 1444 1445 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1446 1447 mCachedEffectiveUserRestrictions.put(userId, effective); 1448 1449 // Apply the new restrictions. 1450 if (DBG) { 1451 debug("Applying user restrictions: userId=" + userId 1452 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1453 } 1454 1455 if (mAppOpsService != null) { // We skip it until system-ready. 1456 mHandler.post(new Runnable() { 1457 @Override 1458 public void run() { 1459 try { 1460 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1461 } catch (RemoteException e) { 1462 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1463 } 1464 } 1465 }); 1466 } 1467 1468 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1469 1470 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1471 } 1472 1473 private void propagateUserRestrictionsLR(final int userId, 1474 Bundle newRestrictions, Bundle prevRestrictions) { 1475 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1476 // actually, but we still need some kind of synchronization otherwise we might end up 1477 // calling listeners out-of-order, thus "LR". 1478 1479 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1480 return; 1481 } 1482 1483 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1484 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1485 1486 mHandler.post(new Runnable() { 1487 @Override 1488 public void run() { 1489 UserRestrictionsUtils.applyUserRestrictions( 1490 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1491 1492 final UserRestrictionsListener[] listeners; 1493 synchronized (mUserRestrictionsListeners) { 1494 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1495 mUserRestrictionsListeners.toArray(listeners); 1496 } 1497 for (int i = 0; i < listeners.length; i++) { 1498 listeners[i].onUserRestrictionsChanged(userId, 1499 newRestrictionsFinal, prevRestrictionsFinal); 1500 } 1501 1502 final Intent broadcast = new Intent(UserManager.ACTION_USER_RESTRICTIONS_CHANGED) 1503 .setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1504 mContext.sendBroadcastAsUser(broadcast, UserHandle.of(userId)); 1505 } 1506 }); 1507 } 1508 1509 // Package private for the inner class. 1510 void applyUserRestrictionsLR(int userId) { 1511 updateUserRestrictionsInternalLR(null, userId); 1512 } 1513 1514 @GuardedBy("mRestrictionsLock") 1515 // Package private for the inner class. 1516 void applyUserRestrictionsForAllUsersLR() { 1517 if (DBG) { 1518 debug("applyUserRestrictionsForAllUsersLR"); 1519 } 1520 // First, invalidate all cached values. 1521 mCachedEffectiveUserRestrictions.clear(); 1522 1523 // We don't want to call into ActivityManagerService while taking a lock, so we'll call 1524 // it on a handler. 1525 final Runnable r = new Runnable() { 1526 @Override 1527 public void run() { 1528 // Then get the list of running users. 1529 final int[] runningUsers; 1530 try { 1531 runningUsers = ActivityManager.getService().getRunningUserIds(); 1532 } catch (RemoteException e) { 1533 Log.w(LOG_TAG, "Unable to access ActivityManagerService"); 1534 return; 1535 } 1536 // Then re-calculate the effective restrictions and apply, only for running users. 1537 // It's okay if a new user has started after the getRunningUserIds() call, 1538 // because we'll do the same thing (re-calculate the restrictions and apply) 1539 // when we start a user. 1540 synchronized (mRestrictionsLock) { 1541 for (int i = 0; i < runningUsers.length; i++) { 1542 applyUserRestrictionsLR(runningUsers[i]); 1543 } 1544 } 1545 } 1546 }; 1547 mHandler.post(r); 1548 } 1549 1550 /** 1551 * Check if we've hit the limit of how many users can be created. 1552 */ 1553 private boolean isUserLimitReached() { 1554 int count; 1555 synchronized (mUsersLock) { 1556 count = getAliveUsersExcludingGuestsCountLU(); 1557 } 1558 return count >= UserManager.getMaxSupportedUsers(); 1559 } 1560 1561 @Override 1562 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1563 checkManageUsersPermission("check if more managed profiles can be added."); 1564 if (ActivityManager.isLowRamDeviceStatic()) { 1565 return false; 1566 } 1567 if (!mContext.getPackageManager().hasSystemFeature( 1568 PackageManager.FEATURE_MANAGED_USERS)) { 1569 return false; 1570 } 1571 // Limit number of managed profiles that can be created 1572 final int managedProfilesCount = getProfiles(userId, false).size() - 1; 1573 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1574 if (managedProfilesCount - profilesRemovedCount >= getMaxManagedProfiles()) { 1575 return false; 1576 } 1577 synchronized(mUsersLock) { 1578 UserInfo userInfo = getUserInfoLU(userId); 1579 if (userInfo == null || !userInfo.canHaveProfile()) { 1580 return false; 1581 } 1582 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1583 - profilesRemovedCount; 1584 // We allow creating a managed profile in the special case where there is only one user. 1585 return usersCountAfterRemoving == 1 1586 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1587 } 1588 } 1589 1590 private int getAliveUsersExcludingGuestsCountLU() { 1591 int aliveUserCount = 0; 1592 final int totalUserCount = mUsers.size(); 1593 // Skip over users being removed 1594 for (int i = 0; i < totalUserCount; i++) { 1595 UserInfo user = mUsers.valueAt(i).info; 1596 if (!mRemovingUserIds.get(user.id) && !user.isGuest()) { 1597 aliveUserCount++; 1598 } 1599 } 1600 return aliveUserCount; 1601 } 1602 1603 /** 1604 * Enforces that only the system UID or root's UID or apps that have the 1605 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1606 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1607 * permissions can make certain calls to the UserManager. 1608 * 1609 * @param message used as message if SecurityException is thrown 1610 * @throws SecurityException if the caller does not have enough privilege. 1611 */ 1612 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1613 final int uid = Binder.getCallingUid(); 1614 if (uid != Process.SYSTEM_UID && uid != 0 1615 && ActivityManager.checkComponentPermission( 1616 Manifest.permission.MANAGE_USERS, 1617 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1618 && ActivityManager.checkComponentPermission( 1619 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1620 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1621 throw new SecurityException( 1622 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1623 + message); 1624 } 1625 } 1626 1627 /** 1628 * Enforces that only the system UID or root's UID or apps that have the 1629 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1630 * permission can make certain calls to the UserManager. 1631 * 1632 * @param message used as message if SecurityException is thrown 1633 * @throws SecurityException if the caller is not system or root 1634 * @see #hasManageUsersPermission() 1635 */ 1636 private static final void checkManageUsersPermission(String message) { 1637 if (!hasManageUsersPermission()) { 1638 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1639 } 1640 } 1641 1642 /** 1643 * Enforces that only the system UID or root's UID or apps that have the 1644 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1645 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} 1646 * can make certain calls to the UserManager. 1647 * 1648 * @param message used as message if SecurityException is thrown 1649 * @throws SecurityException if the caller is not system or root 1650 * @see #hasManageOrCreateUsersPermission() 1651 */ 1652 private static final void checkManageOrCreateUsersPermission(String message) { 1653 if (!hasManageOrCreateUsersPermission()) { 1654 throw new SecurityException( 1655 "You either need MANAGE_USERS or CREATE_USERS permission to: " + message); 1656 } 1657 } 1658 1659 /** 1660 * Similar to {@link #checkManageOrCreateUsersPermission(String)} but when the caller is tries 1661 * to create user/profiles other than what is allowed for 1662 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} permission, then it will only 1663 * allow callers with {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} permission. 1664 */ 1665 private static final void checkManageOrCreateUsersPermission(int creationFlags) { 1666 if ((creationFlags & ~ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION) == 0) { 1667 if (!hasManageOrCreateUsersPermission()) { 1668 throw new SecurityException("You either need MANAGE_USERS or CREATE_USERS " 1669 + "permission to create an user with flags: " + creationFlags); 1670 } 1671 } else if (!hasManageUsersPermission()) { 1672 throw new SecurityException("You need MANAGE_USERS permission to create an user " 1673 + " with flags: " + creationFlags); 1674 } 1675 } 1676 1677 /** 1678 * @return whether the calling UID is system UID or root's UID or the calling app has the 1679 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1680 */ 1681 private static final boolean hasManageUsersPermission() { 1682 final int callingUid = Binder.getCallingUid(); 1683 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1684 || callingUid == Process.ROOT_UID 1685 || ActivityManager.checkComponentPermission( 1686 android.Manifest.permission.MANAGE_USERS, 1687 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1688 } 1689 1690 /** 1691 * @return whether the calling UID is system UID or root's UID or the calling app has the 1692 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1693 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS}. 1694 */ 1695 private static final boolean hasManageOrCreateUsersPermission() { 1696 final int callingUid = Binder.getCallingUid(); 1697 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1698 || callingUid == Process.ROOT_UID 1699 || ActivityManager.checkComponentPermission( 1700 android.Manifest.permission.MANAGE_USERS, 1701 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED 1702 || ActivityManager.checkComponentPermission( 1703 android.Manifest.permission.CREATE_USERS, 1704 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1705 } 1706 1707 /** 1708 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1709 * UserManager. 1710 * 1711 * @param message used as message if SecurityException is thrown 1712 * @throws SecurityException if the caller is not system or root 1713 */ 1714 private static void checkSystemOrRoot(String message) { 1715 final int uid = Binder.getCallingUid(); 1716 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1717 throw new SecurityException("Only system may: " + message); 1718 } 1719 } 1720 1721 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1722 try { 1723 File dir = new File(mUsersDir, Integer.toString(info.id)); 1724 File file = new File(dir, USER_PHOTO_FILENAME); 1725 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1726 if (!dir.exists()) { 1727 dir.mkdir(); 1728 FileUtils.setPermissions( 1729 dir.getPath(), 1730 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1731 -1, -1); 1732 } 1733 FileOutputStream os; 1734 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1735 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1736 info.iconPath = file.getAbsolutePath(); 1737 } 1738 try { 1739 os.close(); 1740 } catch (IOException ioe) { 1741 // What the ... ! 1742 } 1743 tmp.delete(); 1744 } catch (FileNotFoundException e) { 1745 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1746 } 1747 } 1748 1749 /** 1750 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1751 * cache it elsewhere. 1752 * @return the array of user ids. 1753 */ 1754 public int[] getUserIds() { 1755 synchronized (mUsersLock) { 1756 return mUserIds; 1757 } 1758 } 1759 1760 private void readUserListLP() { 1761 if (!mUserListFile.exists()) { 1762 fallbackToSingleUserLP(); 1763 return; 1764 } 1765 FileInputStream fis = null; 1766 AtomicFile userListFile = new AtomicFile(mUserListFile); 1767 try { 1768 fis = userListFile.openRead(); 1769 XmlPullParser parser = Xml.newPullParser(); 1770 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1771 int type; 1772 while ((type = parser.next()) != XmlPullParser.START_TAG 1773 && type != XmlPullParser.END_DOCUMENT) { 1774 // Skip 1775 } 1776 1777 if (type != XmlPullParser.START_TAG) { 1778 Slog.e(LOG_TAG, "Unable to read user list"); 1779 fallbackToSingleUserLP(); 1780 return; 1781 } 1782 1783 mNextSerialNumber = -1; 1784 if (parser.getName().equals(TAG_USERS)) { 1785 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1786 if (lastSerialNumber != null) { 1787 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1788 } 1789 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1790 if (versionNumber != null) { 1791 mUserVersion = Integer.parseInt(versionNumber); 1792 } 1793 } 1794 1795 // Pre-O global user restriction were stored as a single bundle (as opposed to per-user 1796 // currently), take care of it in case of upgrade. 1797 Bundle oldDevicePolicyGlobalUserRestrictions = null; 1798 1799 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1800 if (type == XmlPullParser.START_TAG) { 1801 final String name = parser.getName(); 1802 if (name.equals(TAG_USER)) { 1803 String id = parser.getAttributeValue(null, ATTR_ID); 1804 1805 UserData userData = readUserLP(Integer.parseInt(id)); 1806 1807 if (userData != null) { 1808 synchronized (mUsersLock) { 1809 mUsers.put(userData.info.id, userData); 1810 if (mNextSerialNumber < 0 1811 || mNextSerialNumber <= userData.info.id) { 1812 mNextSerialNumber = userData.info.id + 1; 1813 } 1814 } 1815 } 1816 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1817 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1818 && type != XmlPullParser.END_TAG) { 1819 if (type == XmlPullParser.START_TAG) { 1820 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1821 synchronized (mGuestRestrictions) { 1822 UserRestrictionsUtils 1823 .readRestrictions(parser, mGuestRestrictions); 1824 } 1825 } 1826 break; 1827 } 1828 } 1829 } else if (name.equals(TAG_DEVICE_OWNER_USER_ID) 1830 // Legacy name, should only be encountered when upgrading from pre-O. 1831 || name.equals(TAG_GLOBAL_RESTRICTION_OWNER_ID)) { 1832 String ownerUserId = parser.getAttributeValue(null, ATTR_ID); 1833 if (ownerUserId != null) { 1834 mDeviceOwnerUserId = Integer.parseInt(ownerUserId); 1835 } 1836 } else if (name.equals(TAG_DEVICE_POLICY_RESTRICTIONS)) { 1837 // Should only happen when upgrading from pre-O (version < 7). 1838 oldDevicePolicyGlobalUserRestrictions = 1839 UserRestrictionsUtils.readRestrictions(parser); 1840 } 1841 } 1842 } 1843 1844 updateUserIds(); 1845 upgradeIfNecessaryLP(oldDevicePolicyGlobalUserRestrictions); 1846 } catch (IOException | XmlPullParserException e) { 1847 fallbackToSingleUserLP(); 1848 } finally { 1849 IoUtils.closeQuietly(fis); 1850 } 1851 } 1852 1853 /** 1854 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1855 * @param oldGlobalUserRestrictions Pre-O global device policy restrictions. 1856 */ 1857 private void upgradeIfNecessaryLP(Bundle oldGlobalUserRestrictions) { 1858 final int originalVersion = mUserVersion; 1859 int userVersion = mUserVersion; 1860 if (userVersion < 1) { 1861 // Assign a proper name for the owner, if not initialized correctly before 1862 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1863 if ("Primary".equals(userData.info.name)) { 1864 userData.info.name = 1865 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1866 scheduleWriteUser(userData); 1867 } 1868 userVersion = 1; 1869 } 1870 1871 if (userVersion < 2) { 1872 // Owner should be marked as initialized 1873 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1874 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1875 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1876 scheduleWriteUser(userData); 1877 } 1878 userVersion = 2; 1879 } 1880 1881 1882 if (userVersion < 4) { 1883 userVersion = 4; 1884 } 1885 1886 if (userVersion < 5) { 1887 initDefaultGuestRestrictions(); 1888 userVersion = 5; 1889 } 1890 1891 if (userVersion < 6) { 1892 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1893 synchronized (mUsersLock) { 1894 for (int i = 0; i < mUsers.size(); i++) { 1895 UserData userData = mUsers.valueAt(i); 1896 // In non-split mode, only user 0 can have restricted profiles 1897 if (!splitSystemUser && userData.info.isRestricted() 1898 && (userData.info.restrictedProfileParentId 1899 == UserInfo.NO_PROFILE_GROUP_ID)) { 1900 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1901 scheduleWriteUser(userData); 1902 } 1903 } 1904 } 1905 userVersion = 6; 1906 } 1907 1908 if (userVersion < 7) { 1909 // Previously only one user could enforce global restrictions, now it is per-user. 1910 synchronized (mRestrictionsLock) { 1911 if (!UserRestrictionsUtils.isEmpty(oldGlobalUserRestrictions) 1912 && mDeviceOwnerUserId != UserHandle.USER_NULL) { 1913 mDevicePolicyGlobalUserRestrictions.put( 1914 mDeviceOwnerUserId, oldGlobalUserRestrictions); 1915 } 1916 // ENSURE_VERIFY_APPS is now enforced globally even if put by profile owner, so move 1917 // it from local to global bundle for all users who set it. 1918 UserRestrictionsUtils.moveRestriction(UserManager.ENSURE_VERIFY_APPS, 1919 mDevicePolicyLocalUserRestrictions, mDevicePolicyGlobalUserRestrictions 1920 ); 1921 } 1922 userVersion = 7; 1923 } 1924 1925 if (userVersion < USER_VERSION) { 1926 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1927 + USER_VERSION); 1928 } else { 1929 mUserVersion = userVersion; 1930 1931 if (originalVersion < mUserVersion) { 1932 writeUserListLP(); 1933 } 1934 } 1935 } 1936 1937 private void fallbackToSingleUserLP() { 1938 int flags = UserInfo.FLAG_INITIALIZED; 1939 // In split system user mode, the admin and primary flags are assigned to the first human 1940 // user. 1941 if (!UserManager.isSplitSystemUser()) { 1942 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1943 } 1944 // Create the system user 1945 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 1946 UserData userData = putUserInfo(system); 1947 mNextSerialNumber = MIN_USER_ID; 1948 mUserVersion = USER_VERSION; 1949 1950 Bundle restrictions = new Bundle(); 1951 try { 1952 final String[] defaultFirstUserRestrictions = mContext.getResources().getStringArray( 1953 com.android.internal.R.array.config_defaultFirstUserRestrictions); 1954 for (String userRestriction : defaultFirstUserRestrictions) { 1955 if (UserRestrictionsUtils.isValidRestriction(userRestriction)) { 1956 restrictions.putBoolean(userRestriction, true); 1957 } 1958 } 1959 } catch (Resources.NotFoundException e) { 1960 Log.e(LOG_TAG, "Couldn't find resource: config_defaultFirstUserRestrictions", e); 1961 } 1962 1963 if (!restrictions.isEmpty()) { 1964 synchronized (mRestrictionsLock) { 1965 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1966 } 1967 } 1968 1969 updateUserIds(); 1970 initDefaultGuestRestrictions(); 1971 1972 writeUserLP(userData); 1973 writeUserListLP(); 1974 } 1975 1976 private String getOwnerName() { 1977 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 1978 } 1979 1980 private void scheduleWriteUser(UserData UserData) { 1981 if (DBG) { 1982 debug("scheduleWriteUser"); 1983 } 1984 // No need to wrap it within a lock -- worst case, we'll just post the same message 1985 // twice. 1986 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 1987 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 1988 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1989 } 1990 } 1991 1992 private void writeUserLP(UserData userData) { 1993 if (DBG) { 1994 debug("writeUserLP " + userData); 1995 } 1996 FileOutputStream fos = null; 1997 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 1998 try { 1999 fos = userFile.startWrite(); 2000 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2001 writeUserLP(userData, bos); 2002 userFile.finishWrite(fos); 2003 } catch (Exception ioe) { 2004 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 2005 userFile.failWrite(fos); 2006 } 2007 } 2008 2009 /* 2010 * Writes the user file in this format: 2011 * 2012 * <user flags="20039023" id="0"> 2013 * <name>Primary</name> 2014 * </user> 2015 */ 2016 @VisibleForTesting 2017 void writeUserLP(UserData userData, OutputStream os) 2018 throws IOException, XmlPullParserException { 2019 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2020 final XmlSerializer serializer = new FastXmlSerializer(); 2021 serializer.setOutput(os, StandardCharsets.UTF_8.name()); 2022 serializer.startDocument(null, true); 2023 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2024 2025 final UserInfo userInfo = userData.info; 2026 serializer.startTag(null, TAG_USER); 2027 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 2028 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 2029 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 2030 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 2031 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 2032 Long.toString(userInfo.lastLoggedInTime)); 2033 if (userInfo.lastLoggedInFingerprint != null) { 2034 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 2035 userInfo.lastLoggedInFingerprint); 2036 } 2037 if (userInfo.iconPath != null) { 2038 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 2039 } 2040 if (userInfo.partial) { 2041 serializer.attribute(null, ATTR_PARTIAL, "true"); 2042 } 2043 if (userInfo.guestToRemove) { 2044 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 2045 } 2046 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 2047 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 2048 Integer.toString(userInfo.profileGroupId)); 2049 } 2050 serializer.attribute(null, ATTR_PROFILE_BADGE, 2051 Integer.toString(userInfo.profileBadge)); 2052 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 2053 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 2054 Integer.toString(userInfo.restrictedProfileParentId)); 2055 } 2056 // Write seed data 2057 if (userData.persistSeedData) { 2058 if (userData.seedAccountName != null) { 2059 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 2060 } 2061 if (userData.seedAccountType != null) { 2062 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 2063 } 2064 } 2065 if (userInfo.name != null) { 2066 serializer.startTag(null, TAG_NAME); 2067 serializer.text(userInfo.name); 2068 serializer.endTag(null, TAG_NAME); 2069 } 2070 synchronized (mRestrictionsLock) { 2071 UserRestrictionsUtils.writeRestrictions(serializer, 2072 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 2073 UserRestrictionsUtils.writeRestrictions(serializer, 2074 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 2075 TAG_DEVICE_POLICY_RESTRICTIONS); 2076 UserRestrictionsUtils.writeRestrictions(serializer, 2077 mDevicePolicyGlobalUserRestrictions.get(userInfo.id), 2078 TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS); 2079 } 2080 2081 if (userData.account != null) { 2082 serializer.startTag(null, TAG_ACCOUNT); 2083 serializer.text(userData.account); 2084 serializer.endTag(null, TAG_ACCOUNT); 2085 } 2086 2087 if (userData.persistSeedData && userData.seedAccountOptions != null) { 2088 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2089 userData.seedAccountOptions.saveToXml(serializer); 2090 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2091 } 2092 2093 serializer.endTag(null, TAG_USER); 2094 2095 serializer.endDocument(); 2096 } 2097 2098 /* 2099 * Writes the user list file in this format: 2100 * 2101 * <users nextSerialNumber="3"> 2102 * <user id="0"></user> 2103 * <user id="2"></user> 2104 * </users> 2105 */ 2106 private void writeUserListLP() { 2107 if (DBG) { 2108 debug("writeUserList"); 2109 } 2110 FileOutputStream fos = null; 2111 AtomicFile userListFile = new AtomicFile(mUserListFile); 2112 try { 2113 fos = userListFile.startWrite(); 2114 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2115 2116 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2117 final XmlSerializer serializer = new FastXmlSerializer(); 2118 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2119 serializer.startDocument(null, true); 2120 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2121 2122 serializer.startTag(null, TAG_USERS); 2123 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 2124 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 2125 2126 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 2127 synchronized (mGuestRestrictions) { 2128 UserRestrictionsUtils 2129 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 2130 } 2131 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 2132 serializer.startTag(null, TAG_DEVICE_OWNER_USER_ID); 2133 serializer.attribute(null, ATTR_ID, Integer.toString(mDeviceOwnerUserId)); 2134 serializer.endTag(null, TAG_DEVICE_OWNER_USER_ID); 2135 int[] userIdsToWrite; 2136 synchronized (mUsersLock) { 2137 userIdsToWrite = new int[mUsers.size()]; 2138 for (int i = 0; i < userIdsToWrite.length; i++) { 2139 UserInfo user = mUsers.valueAt(i).info; 2140 userIdsToWrite[i] = user.id; 2141 } 2142 } 2143 for (int id : userIdsToWrite) { 2144 serializer.startTag(null, TAG_USER); 2145 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 2146 serializer.endTag(null, TAG_USER); 2147 } 2148 2149 serializer.endTag(null, TAG_USERS); 2150 2151 serializer.endDocument(); 2152 userListFile.finishWrite(fos); 2153 } catch (Exception e) { 2154 userListFile.failWrite(fos); 2155 Slog.e(LOG_TAG, "Error writing user list"); 2156 } 2157 } 2158 2159 private UserData readUserLP(int id) { 2160 FileInputStream fis = null; 2161 try { 2162 AtomicFile userFile = 2163 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 2164 fis = userFile.openRead(); 2165 return readUserLP(id, fis); 2166 } catch (IOException ioe) { 2167 Slog.e(LOG_TAG, "Error reading user list"); 2168 } catch (XmlPullParserException pe) { 2169 Slog.e(LOG_TAG, "Error reading user list"); 2170 } finally { 2171 IoUtils.closeQuietly(fis); 2172 } 2173 return null; 2174 } 2175 2176 @VisibleForTesting 2177 UserData readUserLP(int id, InputStream is) throws IOException, 2178 XmlPullParserException { 2179 int flags = 0; 2180 int serialNumber = id; 2181 String name = null; 2182 String account = null; 2183 String iconPath = null; 2184 long creationTime = 0L; 2185 long lastLoggedInTime = 0L; 2186 String lastLoggedInFingerprint = null; 2187 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 2188 int profileBadge = 0; 2189 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 2190 boolean partial = false; 2191 boolean guestToRemove = false; 2192 boolean persistSeedData = false; 2193 String seedAccountName = null; 2194 String seedAccountType = null; 2195 PersistableBundle seedAccountOptions = null; 2196 Bundle baseRestrictions = null; 2197 Bundle localRestrictions = null; 2198 Bundle globalRestrictions = null; 2199 2200 XmlPullParser parser = Xml.newPullParser(); 2201 parser.setInput(is, StandardCharsets.UTF_8.name()); 2202 int type; 2203 while ((type = parser.next()) != XmlPullParser.START_TAG 2204 && type != XmlPullParser.END_DOCUMENT) { 2205 // Skip 2206 } 2207 2208 if (type != XmlPullParser.START_TAG) { 2209 Slog.e(LOG_TAG, "Unable to read user " + id); 2210 return null; 2211 } 2212 2213 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 2214 int storedId = readIntAttribute(parser, ATTR_ID, -1); 2215 if (storedId != id) { 2216 Slog.e(LOG_TAG, "User id does not match the file name"); 2217 return null; 2218 } 2219 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 2220 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 2221 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 2222 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 2223 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 2224 lastLoggedInFingerprint = parser.getAttributeValue(null, 2225 ATTR_LAST_LOGGED_IN_FINGERPRINT); 2226 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 2227 UserInfo.NO_PROFILE_GROUP_ID); 2228 profileBadge = readIntAttribute(parser, ATTR_PROFILE_BADGE, 0); 2229 restrictedProfileParentId = readIntAttribute(parser, 2230 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 2231 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 2232 if ("true".equals(valueString)) { 2233 partial = true; 2234 } 2235 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 2236 if ("true".equals(valueString)) { 2237 guestToRemove = true; 2238 } 2239 2240 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 2241 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 2242 if (seedAccountName != null || seedAccountType != null) { 2243 persistSeedData = true; 2244 } 2245 2246 int outerDepth = parser.getDepth(); 2247 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 2248 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2249 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2250 continue; 2251 } 2252 String tag = parser.getName(); 2253 if (TAG_NAME.equals(tag)) { 2254 type = parser.next(); 2255 if (type == XmlPullParser.TEXT) { 2256 name = parser.getText(); 2257 } 2258 } else if (TAG_RESTRICTIONS.equals(tag)) { 2259 baseRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2260 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 2261 localRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2262 } else if (TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS.equals(tag)) { 2263 globalRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2264 } else if (TAG_ACCOUNT.equals(tag)) { 2265 type = parser.next(); 2266 if (type == XmlPullParser.TEXT) { 2267 account = parser.getText(); 2268 } 2269 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 2270 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 2271 persistSeedData = true; 2272 } 2273 } 2274 } 2275 2276 // Create the UserInfo object that gets passed around 2277 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 2278 userInfo.serialNumber = serialNumber; 2279 userInfo.creationTime = creationTime; 2280 userInfo.lastLoggedInTime = lastLoggedInTime; 2281 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 2282 userInfo.partial = partial; 2283 userInfo.guestToRemove = guestToRemove; 2284 userInfo.profileGroupId = profileGroupId; 2285 userInfo.profileBadge = profileBadge; 2286 userInfo.restrictedProfileParentId = restrictedProfileParentId; 2287 2288 // Create the UserData object that's internal to this class 2289 UserData userData = new UserData(); 2290 userData.info = userInfo; 2291 userData.account = account; 2292 userData.seedAccountName = seedAccountName; 2293 userData.seedAccountType = seedAccountType; 2294 userData.persistSeedData = persistSeedData; 2295 userData.seedAccountOptions = seedAccountOptions; 2296 2297 synchronized (mRestrictionsLock) { 2298 if (baseRestrictions != null) { 2299 mBaseUserRestrictions.put(id, baseRestrictions); 2300 } 2301 if (localRestrictions != null) { 2302 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 2303 } 2304 if (globalRestrictions != null) { 2305 mDevicePolicyGlobalUserRestrictions.put(id, globalRestrictions); 2306 } 2307 } 2308 return userData; 2309 } 2310 2311 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 2312 String valueString = parser.getAttributeValue(null, attr); 2313 if (valueString == null) return defaultValue; 2314 try { 2315 return Integer.parseInt(valueString); 2316 } catch (NumberFormatException nfe) { 2317 return defaultValue; 2318 } 2319 } 2320 2321 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 2322 String valueString = parser.getAttributeValue(null, attr); 2323 if (valueString == null) return defaultValue; 2324 try { 2325 return Long.parseLong(valueString); 2326 } catch (NumberFormatException nfe) { 2327 return defaultValue; 2328 } 2329 } 2330 2331 /** 2332 * Removes the app restrictions file for a specific package and user id, if it exists. 2333 */ 2334 private static void cleanAppRestrictionsForPackageLAr(String pkg, int userId) { 2335 File dir = Environment.getUserSystemDirectory(userId); 2336 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 2337 if (resFile.exists()) { 2338 resFile.delete(); 2339 } 2340 } 2341 2342 @Override 2343 public UserInfo createProfileForUser(String name, int flags, int userId, 2344 String[] disallowedPackages) { 2345 checkManageOrCreateUsersPermission(flags); 2346 return createUserInternal(name, flags, userId, disallowedPackages); 2347 } 2348 2349 @Override 2350 public UserInfo createProfileForUserEvenWhenDisallowed(String name, int flags, int userId, 2351 String[] disallowedPackages) { 2352 checkManageOrCreateUsersPermission(flags); 2353 return createUserInternalUnchecked(name, flags, userId, disallowedPackages); 2354 } 2355 2356 @Override 2357 public boolean removeUserEvenWhenDisallowed(@UserIdInt int userHandle) { 2358 checkManageOrCreateUsersPermission("Only the system can remove users"); 2359 return removeUserUnchecked(userHandle); 2360 } 2361 2362 @Override 2363 public UserInfo createUser(String name, int flags) { 2364 checkManageOrCreateUsersPermission(flags); 2365 return createUserInternal(name, flags, UserHandle.USER_NULL); 2366 } 2367 2368 private UserInfo createUserInternal(String name, int flags, int parentId) { 2369 return createUserInternal(name, flags, parentId, null); 2370 } 2371 2372 private UserInfo createUserInternal(String name, int flags, int parentId, 2373 String[] disallowedPackages) { 2374 String restriction = ((flags & UserInfo.FLAG_MANAGED_PROFILE) != 0) 2375 ? UserManager.DISALLOW_ADD_MANAGED_PROFILE 2376 : UserManager.DISALLOW_ADD_USER; 2377 if (hasUserRestriction(restriction, UserHandle.getCallingUserId())) { 2378 Log.w(LOG_TAG, "Cannot add user. " + restriction + " is enabled."); 2379 return null; 2380 } 2381 return createUserInternalUnchecked(name, flags, parentId, disallowedPackages); 2382 } 2383 2384 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId, 2385 String[] disallowedPackages) { 2386 DeviceStorageMonitorInternal dsm = LocalServices 2387 .getService(DeviceStorageMonitorInternal.class); 2388 if (dsm.isMemoryLow()) { 2389 Log.w(LOG_TAG, "Cannot add user. Not enough space on disk."); 2390 return null; 2391 } 2392 if (ActivityManager.isLowRamDeviceStatic()) { 2393 return null; 2394 } 2395 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 2396 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 2397 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 2398 final boolean isDemo = (flags & UserInfo.FLAG_DEMO) != 0; 2399 final long ident = Binder.clearCallingIdentity(); 2400 UserInfo userInfo; 2401 UserData userData; 2402 final int userId; 2403 try { 2404 synchronized (mPackagesLock) { 2405 UserData parent = null; 2406 if (parentId != UserHandle.USER_NULL) { 2407 synchronized (mUsersLock) { 2408 parent = getUserDataLU(parentId); 2409 } 2410 if (parent == null) return null; 2411 } 2412 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 2413 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 2414 return null; 2415 } 2416 if (!isGuest && !isManagedProfile && !isDemo && isUserLimitReached()) { 2417 // If we're not adding a guest/demo user or a managed profile and the limit has 2418 // been reached, cannot add a user. 2419 return null; 2420 } 2421 // If we're adding a guest and there already exists one, bail. 2422 if (isGuest && findCurrentGuestUser() != null) { 2423 return null; 2424 } 2425 // In legacy mode, restricted profile's parent can only be the owner user 2426 if (isRestricted && !UserManager.isSplitSystemUser() 2427 && (parentId != UserHandle.USER_SYSTEM)) { 2428 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 2429 return null; 2430 } 2431 if (isRestricted && UserManager.isSplitSystemUser()) { 2432 if (parent == null) { 2433 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 2434 + "specified"); 2435 return null; 2436 } 2437 if (!parent.info.canHaveProfile()) { 2438 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 2439 + "created for the specified parent user id " + parentId); 2440 return null; 2441 } 2442 } 2443 if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0 2444 && (flags & UserInfo.FLAG_DEMO) == 0) { 2445 Log.e(LOG_TAG, 2446 "Ephemeral users are supported on split-system-user systems only."); 2447 return null; 2448 } 2449 // In split system user mode, we assign the first human user the primary flag. 2450 // And if there is no device owner, we also assign the admin flag to primary user. 2451 if (UserManager.isSplitSystemUser() 2452 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2453 flags |= UserInfo.FLAG_PRIMARY; 2454 synchronized (mUsersLock) { 2455 if (!mIsDeviceManaged) { 2456 flags |= UserInfo.FLAG_ADMIN; 2457 } 2458 } 2459 } 2460 2461 userId = getNextAvailableId(); 2462 Environment.getUserSystemDirectory(userId).mkdirs(); 2463 boolean ephemeralGuests = Resources.getSystem() 2464 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2465 2466 synchronized (mUsersLock) { 2467 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2468 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2469 || (parent != null && parent.info.isEphemeral())) { 2470 flags |= UserInfo.FLAG_EPHEMERAL; 2471 } 2472 2473 userInfo = new UserInfo(userId, name, null, flags); 2474 userInfo.serialNumber = mNextSerialNumber++; 2475 long now = System.currentTimeMillis(); 2476 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2477 userInfo.partial = true; 2478 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2479 if (isManagedProfile && parentId != UserHandle.USER_NULL) { 2480 userInfo.profileBadge = getFreeProfileBadgeLU(parentId); 2481 } 2482 userData = new UserData(); 2483 userData.info = userInfo; 2484 mUsers.put(userId, userData); 2485 } 2486 writeUserLP(userData); 2487 writeUserListLP(); 2488 if (parent != null) { 2489 if (isManagedProfile) { 2490 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2491 parent.info.profileGroupId = parent.info.id; 2492 writeUserLP(parent); 2493 } 2494 userInfo.profileGroupId = parent.info.profileGroupId; 2495 } else if (isRestricted) { 2496 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2497 parent.info.restrictedProfileParentId = parent.info.id; 2498 writeUserLP(parent); 2499 } 2500 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2501 } 2502 } 2503 } 2504 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2505 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2506 mUserDataPreparer.prepareUserData(userId, userInfo.serialNumber, 2507 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2508 mPm.createNewUser(userId, disallowedPackages); 2509 userInfo.partial = false; 2510 synchronized (mPackagesLock) { 2511 writeUserLP(userData); 2512 } 2513 updateUserIds(); 2514 Bundle restrictions = new Bundle(); 2515 if (isGuest) { 2516 synchronized (mGuestRestrictions) { 2517 restrictions.putAll(mGuestRestrictions); 2518 } 2519 } 2520 synchronized (mRestrictionsLock) { 2521 mBaseUserRestrictions.append(userId, restrictions); 2522 } 2523 mPm.onNewUserCreated(userId); 2524 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2525 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2526 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2527 android.Manifest.permission.MANAGE_USERS); 2528 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED 2529 : (isDemo ? TRON_DEMO_CREATED : TRON_USER_CREATED), 1); 2530 } finally { 2531 Binder.restoreCallingIdentity(ident); 2532 } 2533 return userInfo; 2534 } 2535 2536 @VisibleForTesting 2537 UserData putUserInfo(UserInfo userInfo) { 2538 final UserData userData = new UserData(); 2539 userData.info = userInfo; 2540 synchronized (mUsers) { 2541 mUsers.put(userInfo.id, userData); 2542 } 2543 return userData; 2544 } 2545 2546 @VisibleForTesting 2547 void removeUserInfo(int userId) { 2548 synchronized (mUsers) { 2549 mUsers.remove(userId); 2550 } 2551 } 2552 2553 /** 2554 * @hide 2555 */ 2556 @Override 2557 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2558 checkManageOrCreateUsersPermission("setupRestrictedProfile"); 2559 final UserInfo user = createProfileForUser( 2560 name, UserInfo.FLAG_RESTRICTED, parentUserId, null); 2561 if (user == null) { 2562 return null; 2563 } 2564 long identity = Binder.clearCallingIdentity(); 2565 try { 2566 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2567 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2568 // the putIntForUser() will fail. 2569 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2570 android.provider.Settings.Secure.LOCATION_MODE, 2571 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2572 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2573 } finally { 2574 Binder.restoreCallingIdentity(identity); 2575 } 2576 return user; 2577 } 2578 2579 /** 2580 * Find the current guest user. If the Guest user is partial, 2581 * then do not include it in the results as it is about to die. 2582 */ 2583 private UserInfo findCurrentGuestUser() { 2584 synchronized (mUsersLock) { 2585 final int size = mUsers.size(); 2586 for (int i = 0; i < size; i++) { 2587 final UserInfo user = mUsers.valueAt(i).info; 2588 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2589 return user; 2590 } 2591 } 2592 } 2593 return null; 2594 } 2595 2596 /** 2597 * Mark this guest user for deletion to allow us to create another guest 2598 * and switch to that user before actually removing this guest. 2599 * @param userHandle the userid of the current guest 2600 * @return whether the user could be marked for deletion 2601 */ 2602 @Override 2603 public boolean markGuestForDeletion(int userHandle) { 2604 checkManageUsersPermission("Only the system can remove users"); 2605 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2606 UserManager.DISALLOW_REMOVE_USER, false)) { 2607 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2608 return false; 2609 } 2610 2611 long ident = Binder.clearCallingIdentity(); 2612 try { 2613 final UserData userData; 2614 synchronized (mPackagesLock) { 2615 synchronized (mUsersLock) { 2616 userData = mUsers.get(userHandle); 2617 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2618 return false; 2619 } 2620 } 2621 if (!userData.info.isGuest()) { 2622 return false; 2623 } 2624 // We set this to a guest user that is to be removed. This is a temporary state 2625 // where we are allowed to add new Guest users, even if this one is still not 2626 // removed. This user will still show up in getUserInfo() calls. 2627 // If we don't get around to removing this Guest user, it will be purged on next 2628 // startup. 2629 userData.info.guestToRemove = true; 2630 // Mark it as disabled, so that it isn't returned any more when 2631 // profiles are queried. 2632 userData.info.flags |= UserInfo.FLAG_DISABLED; 2633 writeUserLP(userData); 2634 } 2635 } finally { 2636 Binder.restoreCallingIdentity(ident); 2637 } 2638 return true; 2639 } 2640 2641 /** 2642 * Removes a user and all data directories created for that user. This method should be called 2643 * after the user's processes have been terminated. 2644 * @param userHandle the user's id 2645 */ 2646 @Override 2647 public boolean removeUser(int userHandle) { 2648 Slog.i(LOG_TAG, "removeUser u" + userHandle); 2649 checkManageOrCreateUsersPermission("Only the system can remove users"); 2650 2651 final boolean isManagedProfile; 2652 synchronized (mUsersLock) { 2653 UserInfo userInfo = getUserInfoLU(userHandle); 2654 isManagedProfile = userInfo != null && userInfo.isManagedProfile(); 2655 } 2656 String restriction = isManagedProfile 2657 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE : UserManager.DISALLOW_REMOVE_USER; 2658 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean(restriction, false)) { 2659 Log.w(LOG_TAG, "Cannot remove user. " + restriction + " is enabled."); 2660 return false; 2661 } 2662 return removeUserUnchecked(userHandle); 2663 } 2664 2665 private boolean removeUserUnchecked(int userHandle) { 2666 long ident = Binder.clearCallingIdentity(); 2667 try { 2668 final UserData userData; 2669 int currentUser = ActivityManager.getCurrentUser(); 2670 if (currentUser == userHandle) { 2671 Log.w(LOG_TAG, "Current user cannot be removed"); 2672 return false; 2673 } 2674 synchronized (mPackagesLock) { 2675 synchronized (mUsersLock) { 2676 userData = mUsers.get(userHandle); 2677 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2678 return false; 2679 } 2680 2681 addRemovingUserIdLocked(userHandle); 2682 } 2683 2684 // Set this to a partially created user, so that the user will be purged 2685 // on next startup, in case the runtime stops now before stopping and 2686 // removing the user completely. 2687 userData.info.partial = true; 2688 // Mark it as disabled, so that it isn't returned any more when 2689 // profiles are queried. 2690 userData.info.flags |= UserInfo.FLAG_DISABLED; 2691 writeUserLP(userData); 2692 } 2693 try { 2694 mAppOpsService.removeUser(userHandle); 2695 } catch (RemoteException e) { 2696 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2697 } 2698 2699 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2700 && userData.info.isManagedProfile()) { 2701 // Send broadcast to notify system that the user removed was a 2702 // managed user. 2703 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2704 } 2705 2706 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2707 int res; 2708 try { 2709 res = ActivityManager.getService().stopUser(userHandle, /* force= */ true, 2710 new IStopUserCallback.Stub() { 2711 @Override 2712 public void userStopped(int userId) { 2713 finishRemoveUser(userId); 2714 } 2715 @Override 2716 public void userStopAborted(int userId) { 2717 } 2718 }); 2719 } catch (RemoteException e) { 2720 return false; 2721 } 2722 return res == ActivityManager.USER_OP_SUCCESS; 2723 } finally { 2724 Binder.restoreCallingIdentity(ident); 2725 } 2726 } 2727 2728 @VisibleForTesting 2729 void addRemovingUserIdLocked(int userId) { 2730 // We remember deleted user IDs to prevent them from being 2731 // reused during the current boot; they can still be reused 2732 // after a reboot or recycling of userIds. 2733 mRemovingUserIds.put(userId, true); 2734 mRecentlyRemovedIds.add(userId); 2735 // Keep LRU queue of recently removed IDs for recycling 2736 if (mRecentlyRemovedIds.size() > MAX_RECENTLY_REMOVED_IDS_SIZE) { 2737 mRecentlyRemovedIds.removeFirst(); 2738 } 2739 } 2740 2741 void finishRemoveUser(final int userHandle) { 2742 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2743 // Let other services shutdown any activity and clean up their state before completely 2744 // wiping the user's system directory and removing from the user list 2745 long ident = Binder.clearCallingIdentity(); 2746 try { 2747 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2748 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2749 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2750 android.Manifest.permission.MANAGE_USERS, 2751 2752 new BroadcastReceiver() { 2753 @Override 2754 public void onReceive(Context context, Intent intent) { 2755 if (DBG) { 2756 Slog.i(LOG_TAG, 2757 "USER_REMOVED broadcast sent, cleaning up user data " 2758 + userHandle); 2759 } 2760 new Thread() { 2761 @Override 2762 public void run() { 2763 // Clean up any ActivityManager state 2764 LocalServices.getService(ActivityManagerInternal.class) 2765 .onUserRemoved(userHandle); 2766 removeUserState(userHandle); 2767 } 2768 }.start(); 2769 } 2770 }, 2771 2772 null, Activity.RESULT_OK, null, null); 2773 } finally { 2774 Binder.restoreCallingIdentity(ident); 2775 } 2776 } 2777 2778 private void removeUserState(final int userHandle) { 2779 try { 2780 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2781 } catch (IllegalStateException e) { 2782 // This may be simply because the user was partially created. 2783 Slog.i(LOG_TAG, 2784 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2785 } 2786 2787 // Cleanup gatekeeper secure user id 2788 try { 2789 final IGateKeeperService gk = GateKeeper.getService(); 2790 if (gk != null) { 2791 gk.clearSecureUserId(userHandle); 2792 } 2793 } catch (Exception ex) { 2794 Slog.w(LOG_TAG, "unable to clear GK secure user id"); 2795 } 2796 2797 // Cleanup package manager settings 2798 mPm.cleanUpUser(this, userHandle); 2799 2800 // Clean up all data before removing metadata 2801 mUserDataPreparer.destroyUserData(userHandle, 2802 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2803 2804 // Remove this user from the list 2805 synchronized (mUsersLock) { 2806 mUsers.remove(userHandle); 2807 mIsUserManaged.delete(userHandle); 2808 } 2809 synchronized (mUserStates) { 2810 mUserStates.delete(userHandle); 2811 } 2812 synchronized (mRestrictionsLock) { 2813 mBaseUserRestrictions.remove(userHandle); 2814 mAppliedUserRestrictions.remove(userHandle); 2815 mCachedEffectiveUserRestrictions.remove(userHandle); 2816 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2817 if (mDevicePolicyGlobalUserRestrictions.get(userHandle) != null) { 2818 mDevicePolicyGlobalUserRestrictions.remove(userHandle); 2819 applyUserRestrictionsForAllUsersLR(); 2820 } 2821 } 2822 // Update the user list 2823 synchronized (mPackagesLock) { 2824 writeUserListLP(); 2825 } 2826 // Remove user file 2827 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2828 userFile.delete(); 2829 updateUserIds(); 2830 if (RELEASE_DELETED_USER_ID) { 2831 synchronized (mUsers) { 2832 mRemovingUserIds.delete(userHandle); 2833 } 2834 } 2835 } 2836 2837 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2838 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2839 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2840 Intent.FLAG_RECEIVER_FOREGROUND); 2841 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2842 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2843 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2844 } 2845 2846 @Override 2847 public Bundle getApplicationRestrictions(String packageName) { 2848 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2849 } 2850 2851 @Override 2852 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2853 if (UserHandle.getCallingUserId() != userId 2854 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2855 checkSystemOrRoot("get application restrictions for other user/app " + packageName); 2856 } 2857 synchronized (mAppRestrictionsLock) { 2858 // Read the restrictions from XML 2859 return readApplicationRestrictionsLAr(packageName, userId); 2860 } 2861 } 2862 2863 @Override 2864 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2865 int userId) { 2866 checkSystemOrRoot("set application restrictions"); 2867 if (restrictions != null) { 2868 restrictions.setDefusable(true); 2869 } 2870 synchronized (mAppRestrictionsLock) { 2871 if (restrictions == null || restrictions.isEmpty()) { 2872 cleanAppRestrictionsForPackageLAr(packageName, userId); 2873 } else { 2874 // Write the restrictions to XML 2875 writeApplicationRestrictionsLAr(packageName, restrictions, userId); 2876 } 2877 } 2878 2879 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2880 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2881 changeIntent.setPackage(packageName); 2882 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2883 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2884 } 2885 2886 private int getUidForPackage(String packageName) { 2887 long ident = Binder.clearCallingIdentity(); 2888 try { 2889 return mContext.getPackageManager().getApplicationInfo(packageName, 2890 PackageManager.MATCH_ANY_USER).uid; 2891 } catch (NameNotFoundException nnfe) { 2892 return -1; 2893 } finally { 2894 Binder.restoreCallingIdentity(ident); 2895 } 2896 } 2897 2898 @GuardedBy("mAppRestrictionsLock") 2899 private static Bundle readApplicationRestrictionsLAr(String packageName, int userId) { 2900 AtomicFile restrictionsFile = 2901 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2902 packageToRestrictionsFileName(packageName))); 2903 return readApplicationRestrictionsLAr(restrictionsFile); 2904 } 2905 2906 @VisibleForTesting 2907 @GuardedBy("mAppRestrictionsLock") 2908 static Bundle readApplicationRestrictionsLAr(AtomicFile restrictionsFile) { 2909 final Bundle restrictions = new Bundle(); 2910 final ArrayList<String> values = new ArrayList<>(); 2911 if (!restrictionsFile.getBaseFile().exists()) { 2912 return restrictions; 2913 } 2914 2915 FileInputStream fis = null; 2916 try { 2917 fis = restrictionsFile.openRead(); 2918 XmlPullParser parser = Xml.newPullParser(); 2919 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2920 XmlUtils.nextElement(parser); 2921 if (parser.getEventType() != XmlPullParser.START_TAG) { 2922 Slog.e(LOG_TAG, "Unable to read restrictions file " 2923 + restrictionsFile.getBaseFile()); 2924 return restrictions; 2925 } 2926 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2927 readEntry(restrictions, values, parser); 2928 } 2929 } catch (IOException|XmlPullParserException e) { 2930 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2931 } finally { 2932 IoUtils.closeQuietly(fis); 2933 } 2934 return restrictions; 2935 } 2936 2937 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2938 XmlPullParser parser) throws XmlPullParserException, IOException { 2939 int type = parser.getEventType(); 2940 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2941 String key = parser.getAttributeValue(null, ATTR_KEY); 2942 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2943 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2944 if (multiple != null) { 2945 values.clear(); 2946 int count = Integer.parseInt(multiple); 2947 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2948 if (type == XmlPullParser.START_TAG 2949 && parser.getName().equals(TAG_VALUE)) { 2950 values.add(parser.nextText().trim()); 2951 count--; 2952 } 2953 } 2954 String [] valueStrings = new String[values.size()]; 2955 values.toArray(valueStrings); 2956 restrictions.putStringArray(key, valueStrings); 2957 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2958 restrictions.putBundle(key, readBundleEntry(parser, values)); 2959 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2960 final int outerDepth = parser.getDepth(); 2961 ArrayList<Bundle> bundleList = new ArrayList<>(); 2962 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2963 Bundle childBundle = readBundleEntry(parser, values); 2964 bundleList.add(childBundle); 2965 } 2966 restrictions.putParcelableArray(key, 2967 bundleList.toArray(new Bundle[bundleList.size()])); 2968 } else { 2969 String value = parser.nextText().trim(); 2970 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2971 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2972 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2973 restrictions.putInt(key, Integer.parseInt(value)); 2974 } else { 2975 restrictions.putString(key, value); 2976 } 2977 } 2978 } 2979 } 2980 2981 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2982 throws IOException, XmlPullParserException { 2983 Bundle childBundle = new Bundle(); 2984 final int outerDepth = parser.getDepth(); 2985 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2986 readEntry(childBundle, values, parser); 2987 } 2988 return childBundle; 2989 } 2990 2991 @GuardedBy("mAppRestrictionsLock") 2992 private static void writeApplicationRestrictionsLAr(String packageName, 2993 Bundle restrictions, int userId) { 2994 AtomicFile restrictionsFile = new AtomicFile( 2995 new File(Environment.getUserSystemDirectory(userId), 2996 packageToRestrictionsFileName(packageName))); 2997 writeApplicationRestrictionsLAr(restrictions, restrictionsFile); 2998 } 2999 3000 @VisibleForTesting 3001 @GuardedBy("mAppRestrictionsLock") 3002 static void writeApplicationRestrictionsLAr(Bundle restrictions, AtomicFile restrictionsFile) { 3003 FileOutputStream fos = null; 3004 try { 3005 fos = restrictionsFile.startWrite(); 3006 final BufferedOutputStream bos = new BufferedOutputStream(fos); 3007 3008 final XmlSerializer serializer = new FastXmlSerializer(); 3009 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 3010 serializer.startDocument(null, true); 3011 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 3012 3013 serializer.startTag(null, TAG_RESTRICTIONS); 3014 writeBundle(restrictions, serializer); 3015 serializer.endTag(null, TAG_RESTRICTIONS); 3016 3017 serializer.endDocument(); 3018 restrictionsFile.finishWrite(fos); 3019 } catch (Exception e) { 3020 restrictionsFile.failWrite(fos); 3021 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 3022 } 3023 } 3024 3025 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 3026 throws IOException { 3027 for (String key : restrictions.keySet()) { 3028 Object value = restrictions.get(key); 3029 serializer.startTag(null, TAG_ENTRY); 3030 serializer.attribute(null, ATTR_KEY, key); 3031 3032 if (value instanceof Boolean) { 3033 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 3034 serializer.text(value.toString()); 3035 } else if (value instanceof Integer) { 3036 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 3037 serializer.text(value.toString()); 3038 } else if (value == null || value instanceof String) { 3039 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 3040 serializer.text(value != null ? (String) value : ""); 3041 } else if (value instanceof Bundle) { 3042 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3043 writeBundle((Bundle) value, serializer); 3044 } else if (value instanceof Parcelable[]) { 3045 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 3046 Parcelable[] array = (Parcelable[]) value; 3047 for (Parcelable parcelable : array) { 3048 if (!(parcelable instanceof Bundle)) { 3049 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 3050 } 3051 serializer.startTag(null, TAG_ENTRY); 3052 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3053 writeBundle((Bundle) parcelable, serializer); 3054 serializer.endTag(null, TAG_ENTRY); 3055 } 3056 } else { 3057 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 3058 String[] values = (String[]) value; 3059 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 3060 for (String choice : values) { 3061 serializer.startTag(null, TAG_VALUE); 3062 serializer.text(choice != null ? choice : ""); 3063 serializer.endTag(null, TAG_VALUE); 3064 } 3065 } 3066 serializer.endTag(null, TAG_ENTRY); 3067 } 3068 } 3069 3070 @Override 3071 public int getUserSerialNumber(int userHandle) { 3072 synchronized (mUsersLock) { 3073 if (!exists(userHandle)) return -1; 3074 return getUserInfoLU(userHandle).serialNumber; 3075 } 3076 } 3077 3078 @Override 3079 public boolean isUserNameSet(int userHandle) { 3080 synchronized (mUsersLock) { 3081 UserInfo userInfo = getUserInfoLU(userHandle); 3082 return userInfo != null && userInfo.name != null; 3083 } 3084 } 3085 3086 @Override 3087 public int getUserHandle(int userSerialNumber) { 3088 synchronized (mUsersLock) { 3089 for (int userId : mUserIds) { 3090 UserInfo info = getUserInfoLU(userId); 3091 if (info != null && info.serialNumber == userSerialNumber) return userId; 3092 } 3093 // Not found 3094 return -1; 3095 } 3096 } 3097 3098 @Override 3099 public long getUserCreationTime(int userHandle) { 3100 int callingUserId = UserHandle.getCallingUserId(); 3101 UserInfo userInfo = null; 3102 synchronized (mUsersLock) { 3103 if (callingUserId == userHandle) { 3104 userInfo = getUserInfoLU(userHandle); 3105 } else { 3106 UserInfo parent = getProfileParentLU(userHandle); 3107 if (parent != null && parent.id == callingUserId) { 3108 userInfo = getUserInfoLU(userHandle); 3109 } 3110 } 3111 } 3112 if (userInfo == null) { 3113 throw new SecurityException("userHandle can only be the calling user or a managed " 3114 + "profile associated with this user"); 3115 } 3116 return userInfo.creationTime; 3117 } 3118 3119 /** 3120 * Caches the list of user ids in an array, adjusting the array size when necessary. 3121 */ 3122 private void updateUserIds() { 3123 int num = 0; 3124 synchronized (mUsersLock) { 3125 final int userSize = mUsers.size(); 3126 for (int i = 0; i < userSize; i++) { 3127 if (!mUsers.valueAt(i).info.partial) { 3128 num++; 3129 } 3130 } 3131 final int[] newUsers = new int[num]; 3132 int n = 0; 3133 for (int i = 0; i < userSize; i++) { 3134 if (!mUsers.valueAt(i).info.partial) { 3135 newUsers[n++] = mUsers.keyAt(i); 3136 } 3137 } 3138 mUserIds = newUsers; 3139 } 3140 } 3141 3142 /** 3143 * Called right before a user is started. This gives us a chance to prepare 3144 * app storage and apply any user restrictions. 3145 */ 3146 public void onBeforeStartUser(int userId) { 3147 UserInfo userInfo = getUserInfo(userId); 3148 if (userInfo == null) { 3149 return; 3150 } 3151 final int userSerial = userInfo.serialNumber; 3152 // Migrate only if build fingerprints mismatch 3153 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3154 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 3155 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE, migrateAppsData); 3156 3157 if (userId != UserHandle.USER_SYSTEM) { 3158 synchronized (mRestrictionsLock) { 3159 applyUserRestrictionsLR(userId); 3160 } 3161 } 3162 } 3163 3164 /** 3165 * Called right before a user is unlocked. This gives us a chance to prepare 3166 * app storage. 3167 */ 3168 public void onBeforeUnlockUser(@UserIdInt int userId) { 3169 UserInfo userInfo = getUserInfo(userId); 3170 if (userInfo == null) { 3171 return; 3172 } 3173 final int userSerial = userInfo.serialNumber; 3174 // Migrate only if build fingerprints mismatch 3175 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3176 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 3177 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE, migrateAppsData); 3178 } 3179 3180 /** 3181 * Examine all users present on given mounted volume, and destroy data 3182 * belonging to users that are no longer valid, or whose user ID has been 3183 * recycled. 3184 */ 3185 void reconcileUsers(String volumeUuid) { 3186 mUserDataPreparer.reconcileUsers(volumeUuid, getUsers(true /* excludeDying */)); 3187 } 3188 3189 /** 3190 * Make a note of the last started time of a user and do some cleanup. 3191 * This is called with ActivityManagerService lock held. 3192 * @param userId the user that was just foregrounded 3193 */ 3194 public void onUserLoggedIn(@UserIdInt int userId) { 3195 UserData userData = getUserDataNoChecks(userId); 3196 if (userData == null || userData.info.partial) { 3197 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 3198 return; 3199 } 3200 3201 final long now = System.currentTimeMillis(); 3202 if (now > EPOCH_PLUS_30_YEARS) { 3203 userData.info.lastLoggedInTime = now; 3204 } 3205 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 3206 scheduleWriteUser(userData); 3207 } 3208 3209 /** 3210 * Returns the next available user id, filling in any holes in the ids. 3211 */ 3212 @VisibleForTesting 3213 int getNextAvailableId() { 3214 int nextId; 3215 synchronized (mUsersLock) { 3216 nextId = scanNextAvailableIdLocked(); 3217 if (nextId >= 0) { 3218 return nextId; 3219 } 3220 // All ids up to MAX_USER_ID were used. Remove all mRemovingUserIds, 3221 // except most recently removed 3222 if (mRemovingUserIds.size() > 0) { 3223 Slog.i(LOG_TAG, "All available IDs are used. Recycling LRU ids."); 3224 mRemovingUserIds.clear(); 3225 for (Integer recentlyRemovedId : mRecentlyRemovedIds) { 3226 mRemovingUserIds.put(recentlyRemovedId, true); 3227 } 3228 nextId = scanNextAvailableIdLocked(); 3229 } 3230 } 3231 if (nextId < 0) { 3232 throw new IllegalStateException("No user id available!"); 3233 } 3234 return nextId; 3235 } 3236 3237 private int scanNextAvailableIdLocked() { 3238 for (int i = MIN_USER_ID; i < MAX_USER_ID; i++) { 3239 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 3240 return i; 3241 } 3242 } 3243 return -1; 3244 } 3245 3246 private static String packageToRestrictionsFileName(String packageName) { 3247 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 3248 } 3249 3250 @Override 3251 public void setSeedAccountData(int userId, String accountName, String accountType, 3252 PersistableBundle accountOptions, boolean persist) { 3253 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 3254 synchronized (mPackagesLock) { 3255 final UserData userData; 3256 synchronized (mUsersLock) { 3257 userData = getUserDataLU(userId); 3258 if (userData == null) { 3259 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 3260 return; 3261 } 3262 userData.seedAccountName = accountName; 3263 userData.seedAccountType = accountType; 3264 userData.seedAccountOptions = accountOptions; 3265 userData.persistSeedData = persist; 3266 } 3267 if (persist) { 3268 writeUserLP(userData); 3269 } 3270 } 3271 } 3272 3273 @Override 3274 public String getSeedAccountName() throws RemoteException { 3275 checkManageUsersPermission("Cannot get seed account information"); 3276 synchronized (mUsersLock) { 3277 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3278 return userData.seedAccountName; 3279 } 3280 } 3281 3282 @Override 3283 public String getSeedAccountType() throws RemoteException { 3284 checkManageUsersPermission("Cannot get seed account information"); 3285 synchronized (mUsersLock) { 3286 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3287 return userData.seedAccountType; 3288 } 3289 } 3290 3291 @Override 3292 public PersistableBundle getSeedAccountOptions() throws RemoteException { 3293 checkManageUsersPermission("Cannot get seed account information"); 3294 synchronized (mUsersLock) { 3295 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3296 return userData.seedAccountOptions; 3297 } 3298 } 3299 3300 @Override 3301 public void clearSeedAccountData() throws RemoteException { 3302 checkManageUsersPermission("Cannot clear seed account information"); 3303 synchronized (mPackagesLock) { 3304 UserData userData; 3305 synchronized (mUsersLock) { 3306 userData = getUserDataLU(UserHandle.getCallingUserId()); 3307 if (userData == null) return; 3308 userData.clearSeedAccountData(); 3309 } 3310 writeUserLP(userData); 3311 } 3312 } 3313 3314 @Override 3315 public boolean someUserHasSeedAccount(String accountName, String accountType) 3316 throws RemoteException { 3317 checkManageUsersPermission("Cannot check seed account information"); 3318 synchronized (mUsersLock) { 3319 final int userSize = mUsers.size(); 3320 for (int i = 0; i < userSize; i++) { 3321 final UserData data = mUsers.valueAt(i); 3322 if (data.info.isInitialized()) continue; 3323 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 3324 continue; 3325 } 3326 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 3327 continue; 3328 } 3329 return true; 3330 } 3331 } 3332 return false; 3333 } 3334 3335 @Override 3336 public void onShellCommand(FileDescriptor in, FileDescriptor out, 3337 FileDescriptor err, String[] args, ShellCallback callback, 3338 ResultReceiver resultReceiver) { 3339 (new Shell()).exec(this, in, out, err, args, callback, resultReceiver); 3340 } 3341 3342 int onShellCommand(Shell shell, String cmd) { 3343 if (cmd == null) { 3344 return shell.handleDefaultCommands(cmd); 3345 } 3346 3347 final PrintWriter pw = shell.getOutPrintWriter(); 3348 try { 3349 switch(cmd) { 3350 case "list": 3351 return runList(pw); 3352 } 3353 } catch (RemoteException e) { 3354 pw.println("Remote exception: " + e); 3355 } 3356 return -1; 3357 } 3358 3359 private int runList(PrintWriter pw) throws RemoteException { 3360 final IActivityManager am = ActivityManager.getService(); 3361 final List<UserInfo> users = getUsers(false); 3362 if (users == null) { 3363 pw.println("Error: couldn't get users"); 3364 return 1; 3365 } else { 3366 pw.println("Users:"); 3367 for (int i = 0; i < users.size(); i++) { 3368 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 3369 pw.println("\t" + users.get(i).toString() + running); 3370 } 3371 return 0; 3372 } 3373 } 3374 3375 @Override 3376 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3377 if (!DumpUtils.checkDumpPermission(mContext, LOG_TAG, pw)) return; 3378 3379 long now = System.currentTimeMillis(); 3380 StringBuilder sb = new StringBuilder(); 3381 synchronized (mPackagesLock) { 3382 synchronized (mUsersLock) { 3383 pw.println("Users:"); 3384 for (int i = 0; i < mUsers.size(); i++) { 3385 UserData userData = mUsers.valueAt(i); 3386 if (userData == null) { 3387 continue; 3388 } 3389 UserInfo userInfo = userData.info; 3390 final int userId = userInfo.id; 3391 pw.print(" "); pw.print(userInfo); 3392 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 3393 if (mRemovingUserIds.get(userId)) { 3394 pw.print(" <removing> "); 3395 } 3396 if (userInfo.partial) { 3397 pw.print(" <partial>"); 3398 } 3399 pw.println(); 3400 pw.print(" State: "); 3401 final int state; 3402 synchronized (mUserStates) { 3403 state = mUserStates.get(userId, -1); 3404 } 3405 pw.println(UserState.stateToString(state)); 3406 pw.print(" Created: "); 3407 if (userInfo.creationTime == 0) { 3408 pw.println("<unknown>"); 3409 } else { 3410 sb.setLength(0); 3411 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 3412 sb.append(" ago"); 3413 pw.println(sb); 3414 } 3415 pw.print(" Last logged in: "); 3416 if (userInfo.lastLoggedInTime == 0) { 3417 pw.println("<unknown>"); 3418 } else { 3419 sb.setLength(0); 3420 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 3421 sb.append(" ago"); 3422 pw.println(sb); 3423 } 3424 pw.print(" Last logged in fingerprint: "); 3425 pw.println(userInfo.lastLoggedInFingerprint); 3426 pw.print(" Has profile owner: "); 3427 pw.println(mIsUserManaged.get(userId)); 3428 pw.println(" Restrictions:"); 3429 synchronized (mRestrictionsLock) { 3430 UserRestrictionsUtils.dumpRestrictions( 3431 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 3432 pw.println(" Device policy global restrictions:"); 3433 UserRestrictionsUtils.dumpRestrictions( 3434 pw, " ", mDevicePolicyGlobalUserRestrictions.get(userInfo.id)); 3435 pw.println(" Device policy local restrictions:"); 3436 UserRestrictionsUtils.dumpRestrictions( 3437 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 3438 pw.println(" Effective restrictions:"); 3439 UserRestrictionsUtils.dumpRestrictions( 3440 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 3441 } 3442 3443 if (userData.account != null) { 3444 pw.print(" Account name: " + userData.account); 3445 pw.println(); 3446 } 3447 3448 if (userData.seedAccountName != null) { 3449 pw.print(" Seed account name: " + userData.seedAccountName); 3450 pw.println(); 3451 if (userData.seedAccountType != null) { 3452 pw.print(" account type: " + userData.seedAccountType); 3453 pw.println(); 3454 } 3455 if (userData.seedAccountOptions != null) { 3456 pw.print(" account options exist"); 3457 pw.println(); 3458 } 3459 } 3460 } 3461 } 3462 pw.println(); 3463 pw.println(" Device owner id:" + mDeviceOwnerUserId); 3464 pw.println(); 3465 pw.println(" Guest restrictions:"); 3466 synchronized (mGuestRestrictions) { 3467 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 3468 } 3469 synchronized (mUsersLock) { 3470 pw.println(); 3471 pw.println(" Device managed: " + mIsDeviceManaged); 3472 if (mRemovingUserIds.size() > 0) { 3473 pw.println(); 3474 pw.println(" Recently removed userIds: " + mRecentlyRemovedIds); 3475 } 3476 } 3477 synchronized (mUserStates) { 3478 pw.println(" Started users state: " + mUserStates); 3479 } 3480 // Dump some capabilities 3481 pw.println(); 3482 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 3483 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 3484 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 3485 com.android.internal.R.bool.config_guestUserEphemeral)); 3486 } 3487 } 3488 3489 final class MainHandler extends Handler { 3490 3491 @Override 3492 public void handleMessage(Message msg) { 3493 switch (msg.what) { 3494 case WRITE_USER_MSG: 3495 removeMessages(WRITE_USER_MSG, msg.obj); 3496 synchronized (mPackagesLock) { 3497 int userId = ((UserData) msg.obj).info.id; 3498 UserData userData = getUserDataNoChecks(userId); 3499 if (userData != null) { 3500 writeUserLP(userData); 3501 } 3502 } 3503 } 3504 } 3505 } 3506 3507 /** 3508 * @param userId 3509 * @return whether the user has been initialized yet 3510 */ 3511 boolean isInitialized(int userId) { 3512 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3513 } 3514 3515 private class LocalService extends UserManagerInternal { 3516 @Override 3517 public void setDevicePolicyUserRestrictions(int userId, @Nullable Bundle restrictions, 3518 boolean isDeviceOwner, int cameraRestrictionScope) { 3519 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, restrictions, 3520 isDeviceOwner, cameraRestrictionScope); 3521 } 3522 3523 @Override 3524 public Bundle getBaseUserRestrictions(int userId) { 3525 synchronized (mRestrictionsLock) { 3526 return mBaseUserRestrictions.get(userId); 3527 } 3528 } 3529 3530 @Override 3531 public void setBaseUserRestrictionsByDpmsForMigration( 3532 int userId, Bundle baseRestrictions) { 3533 synchronized (mRestrictionsLock) { 3534 if (updateRestrictionsIfNeededLR( 3535 userId, new Bundle(baseRestrictions), mBaseUserRestrictions)) { 3536 invalidateEffectiveUserRestrictionsLR(userId); 3537 } 3538 } 3539 3540 final UserData userData = getUserDataNoChecks(userId); 3541 synchronized (mPackagesLock) { 3542 if (userData != null) { 3543 writeUserLP(userData); 3544 } else { 3545 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3546 } 3547 } 3548 } 3549 3550 @Override 3551 public boolean getUserRestriction(int userId, String key) { 3552 return getUserRestrictions(userId).getBoolean(key); 3553 } 3554 3555 @Override 3556 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3557 synchronized (mUserRestrictionsListeners) { 3558 mUserRestrictionsListeners.add(listener); 3559 } 3560 } 3561 3562 @Override 3563 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3564 synchronized (mUserRestrictionsListeners) { 3565 mUserRestrictionsListeners.remove(listener); 3566 } 3567 } 3568 3569 @Override 3570 public void setDeviceManaged(boolean isManaged) { 3571 synchronized (mUsersLock) { 3572 mIsDeviceManaged = isManaged; 3573 } 3574 } 3575 3576 @Override 3577 public void setUserManaged(int userId, boolean isManaged) { 3578 synchronized (mUsersLock) { 3579 mIsUserManaged.put(userId, isManaged); 3580 } 3581 } 3582 3583 @Override 3584 public void setUserIcon(int userId, Bitmap bitmap) { 3585 long ident = Binder.clearCallingIdentity(); 3586 try { 3587 synchronized (mPackagesLock) { 3588 UserData userData = getUserDataNoChecks(userId); 3589 if (userData == null || userData.info.partial) { 3590 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3591 return; 3592 } 3593 writeBitmapLP(userData.info, bitmap); 3594 writeUserLP(userData); 3595 } 3596 sendUserInfoChangedBroadcast(userId); 3597 } finally { 3598 Binder.restoreCallingIdentity(ident); 3599 } 3600 } 3601 3602 @Override 3603 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3604 synchronized (mUsersLock) { 3605 mForceEphemeralUsers = forceEphemeralUsers; 3606 } 3607 } 3608 3609 @Override 3610 public void removeAllUsers() { 3611 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3612 // Remove the non-system users straight away. 3613 removeNonSystemUsers(); 3614 } else { 3615 // Switch to the system user first and then remove the other users. 3616 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3617 @Override 3618 public void onReceive(Context context, Intent intent) { 3619 int userId = 3620 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3621 if (userId != UserHandle.USER_SYSTEM) { 3622 return; 3623 } 3624 mContext.unregisterReceiver(this); 3625 removeNonSystemUsers(); 3626 } 3627 }; 3628 IntentFilter userSwitchedFilter = new IntentFilter(); 3629 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3630 mContext.registerReceiver( 3631 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3632 3633 // Switch to the system user. 3634 ActivityManager am = 3635 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3636 am.switchUser(UserHandle.USER_SYSTEM); 3637 } 3638 } 3639 3640 @Override 3641 public void onEphemeralUserStop(int userId) { 3642 synchronized (mUsersLock) { 3643 UserInfo userInfo = getUserInfoLU(userId); 3644 if (userInfo != null && userInfo.isEphemeral()) { 3645 // Do not allow switching back to the ephemeral user again as the user is going 3646 // to be deleted. 3647 userInfo.flags |= UserInfo.FLAG_DISABLED; 3648 if (userInfo.isGuest()) { 3649 // Indicate that the guest will be deleted after it stops. 3650 userInfo.guestToRemove = true; 3651 } 3652 } 3653 } 3654 } 3655 3656 @Override 3657 public UserInfo createUserEvenWhenDisallowed(String name, int flags) { 3658 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL, null); 3659 // Keep this in sync with UserManager.createUser 3660 if (user != null && !user.isAdmin() && !user.isDemo()) { 3661 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3662 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3663 } 3664 return user; 3665 } 3666 3667 @Override 3668 public boolean removeUserEvenWhenDisallowed(int userId) { 3669 return removeUserUnchecked(userId); 3670 } 3671 3672 @Override 3673 public boolean isUserRunning(int userId) { 3674 synchronized (mUserStates) { 3675 return mUserStates.get(userId, -1) >= 0; 3676 } 3677 } 3678 3679 @Override 3680 public void setUserState(int userId, int userState) { 3681 synchronized (mUserStates) { 3682 mUserStates.put(userId, userState); 3683 } 3684 } 3685 3686 @Override 3687 public void removeUserState(int userId) { 3688 synchronized (mUserStates) { 3689 mUserStates.delete(userId); 3690 } 3691 } 3692 3693 @Override 3694 public int[] getUserIds() { 3695 return UserManagerService.this.getUserIds(); 3696 } 3697 3698 @Override 3699 public boolean isUserUnlockingOrUnlocked(int userId) { 3700 int state; 3701 synchronized (mUserStates) { 3702 state = mUserStates.get(userId, -1); 3703 } 3704 // Special case, in the stopping/shutdown state user key can still be unlocked 3705 if (state == UserState.STATE_STOPPING || state == UserState.STATE_SHUTDOWN) { 3706 return StorageManager.isUserKeyUnlocked(userId); 3707 } 3708 return (state == UserState.STATE_RUNNING_UNLOCKING) 3709 || (state == UserState.STATE_RUNNING_UNLOCKED); 3710 } 3711 3712 @Override 3713 public boolean isUserUnlocked(int userId) { 3714 int state; 3715 synchronized (mUserStates) { 3716 state = mUserStates.get(userId, -1); 3717 } 3718 // Special case, in the stopping/shutdown state user key can still be unlocked 3719 if (state == UserState.STATE_STOPPING || state == UserState.STATE_SHUTDOWN) { 3720 return StorageManager.isUserKeyUnlocked(userId); 3721 } 3722 return state == UserState.STATE_RUNNING_UNLOCKED; 3723 } 3724 } 3725 3726 /* Remove all the users except of the system one. */ 3727 private void removeNonSystemUsers() { 3728 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3729 synchronized (mUsersLock) { 3730 final int userSize = mUsers.size(); 3731 for (int i = 0; i < userSize; i++) { 3732 UserInfo ui = mUsers.valueAt(i).info; 3733 if (ui.id != UserHandle.USER_SYSTEM) { 3734 usersToRemove.add(ui); 3735 } 3736 } 3737 } 3738 for (UserInfo ui: usersToRemove) { 3739 removeUser(ui.id); 3740 } 3741 } 3742 3743 private class Shell extends ShellCommand { 3744 @Override 3745 public int onCommand(String cmd) { 3746 return onShellCommand(this, cmd); 3747 } 3748 3749 @Override 3750 public void onHelp() { 3751 final PrintWriter pw = getOutPrintWriter(); 3752 pw.println("User manager (user) commands:"); 3753 pw.println(" help"); 3754 pw.println(" Print this help text."); 3755 pw.println(""); 3756 pw.println(" list"); 3757 pw.println(" Prints all users on the system."); 3758 } 3759 } 3760 3761 private static void debug(String message) { 3762 Log.d(LOG_TAG, message + 3763 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3764 } 3765 3766 @VisibleForTesting 3767 static int getMaxManagedProfiles() { 3768 // Allow overriding max managed profiles on debuggable builds for testing 3769 // of multiple profiles. 3770 if (!Build.IS_DEBUGGABLE) { 3771 return MAX_MANAGED_PROFILES; 3772 } else { 3773 return SystemProperties.getInt("persist.sys.max_profiles", 3774 MAX_MANAGED_PROFILES); 3775 } 3776 } 3777 3778 @VisibleForTesting 3779 int getFreeProfileBadgeLU(int parentUserId) { 3780 int maxManagedProfiles = getMaxManagedProfiles(); 3781 boolean[] usedBadges = new boolean[maxManagedProfiles]; 3782 final int userSize = mUsers.size(); 3783 for (int i = 0; i < userSize; i++) { 3784 UserInfo ui = mUsers.valueAt(i).info; 3785 // Check which badge indexes are already used by this profile group. 3786 if (ui.isManagedProfile() 3787 && ui.profileGroupId == parentUserId 3788 && !mRemovingUserIds.get(ui.id) 3789 && ui.profileBadge < maxManagedProfiles) { 3790 usedBadges[ui.profileBadge] = true; 3791 } 3792 } 3793 for (int i = 0; i < maxManagedProfiles; i++) { 3794 if (!usedBadges[i]) { 3795 return i; 3796 } 3797 } 3798 return 0; 3799 } 3800 3801 /** 3802 * Checks if the given user has a managed profile associated with it. 3803 * @param userId The parent user 3804 * @return 3805 */ 3806 boolean hasManagedProfile(int userId) { 3807 synchronized (mUsersLock) { 3808 UserInfo userInfo = getUserInfoLU(userId); 3809 final int userSize = mUsers.size(); 3810 for (int i = 0; i < userSize; i++) { 3811 UserInfo profile = mUsers.valueAt(i).info; 3812 if (userId != profile.id && isProfileOf(userInfo, profile)) { 3813 return true; 3814 } 3815 } 3816 return false; 3817 } 3818 } 3819 } 3820