UserManagerService.java revision 0f1f5b79530e6dbdc7bd66ebf49fe05e4ea3a763
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.pm; 18 19import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS; 20import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; 21 22import android.Manifest; 23import android.annotation.NonNull; 24import android.annotation.Nullable; 25import android.annotation.UserIdInt; 26import android.app.Activity; 27import android.app.ActivityManager; 28import android.app.ActivityManagerInternal; 29import android.app.ActivityManagerNative; 30import android.app.AppGlobals; 31import android.app.IActivityManager; 32import android.app.IStopUserCallback; 33import android.app.KeyguardManager; 34import android.app.PendingIntent; 35import android.content.BroadcastReceiver; 36import android.content.Context; 37import android.content.Intent; 38import android.content.IntentFilter; 39import android.content.IntentSender; 40import android.content.pm.PackageManager; 41import android.content.pm.PackageManager.NameNotFoundException; 42import android.content.pm.UserInfo; 43import android.content.res.Resources; 44import android.graphics.Bitmap; 45import android.os.Binder; 46import android.os.Build; 47import android.os.Bundle; 48import android.os.Debug; 49import android.os.Environment; 50import android.os.FileUtils; 51import android.os.Handler; 52import android.os.IBinder; 53import android.os.IUserManager; 54import android.os.Message; 55import android.os.ParcelFileDescriptor; 56import android.os.Parcelable; 57import android.os.PersistableBundle; 58import android.os.Process; 59import android.os.RemoteException; 60import android.os.ResultReceiver; 61import android.os.SELinux; 62import android.os.ServiceManager; 63import android.os.ShellCallback; 64import android.os.ShellCommand; 65import android.os.SystemProperties; 66import android.os.UserHandle; 67import android.os.UserManager; 68import android.os.UserManager.EnforcingUser; 69import android.os.UserManagerInternal; 70import android.os.UserManagerInternal.UserRestrictionsListener; 71import android.os.storage.StorageManager; 72import android.security.GateKeeper; 73import android.service.gatekeeper.IGateKeeperService; 74import android.system.ErrnoException; 75import android.system.Os; 76import android.system.OsConstants; 77import android.text.TextUtils; 78import android.util.AtomicFile; 79import android.util.IntArray; 80import android.util.Log; 81import android.util.Slog; 82import android.util.SparseArray; 83import android.util.SparseBooleanArray; 84import android.util.SparseIntArray; 85import android.util.TimeUtils; 86import android.util.Xml; 87 88import com.android.internal.annotations.GuardedBy; 89import com.android.internal.annotations.VisibleForTesting; 90import com.android.internal.app.IAppOpsService; 91import com.android.internal.logging.MetricsLogger; 92import com.android.internal.util.DumpUtils; 93import com.android.internal.util.FastXmlSerializer; 94import com.android.internal.util.Preconditions; 95import com.android.internal.util.XmlUtils; 96import com.android.internal.widget.LockPatternUtils; 97import com.android.server.LocalServices; 98import com.android.server.LockGuard; 99import com.android.server.SystemService; 100import com.android.server.am.UserState; 101import com.android.server.storage.DeviceStorageMonitorInternal; 102 103import libcore.io.IoUtils; 104import libcore.util.Objects; 105 106import org.xmlpull.v1.XmlPullParser; 107import org.xmlpull.v1.XmlPullParserException; 108import org.xmlpull.v1.XmlSerializer; 109 110import java.io.BufferedOutputStream; 111import java.io.File; 112import java.io.FileDescriptor; 113import java.io.FileInputStream; 114import java.io.FileNotFoundException; 115import java.io.FileOutputStream; 116import java.io.InputStream; 117import java.io.OutputStream; 118import java.io.IOException; 119import java.io.PrintWriter; 120import java.nio.charset.StandardCharsets; 121import java.util.ArrayList; 122import java.util.Collections; 123import java.util.LinkedList; 124import java.util.List; 125 126/** 127 * Service for {@link UserManager}. 128 * 129 * Method naming convention: 130 * <ul> 131 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 132 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 133 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 134 * </ul> 135 */ 136public class UserManagerService extends IUserManager.Stub { 137 138 private static final String LOG_TAG = "UserManagerService"; 139 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 140 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 141 // Can be used for manual testing of id recycling 142 private static final boolean RELEASE_DELETED_USER_ID = false; // DO NOT SUBMIT WITH TRUE 143 144 private static final String TAG_NAME = "name"; 145 private static final String TAG_ACCOUNT = "account"; 146 private static final String ATTR_FLAGS = "flags"; 147 private static final String ATTR_ICON_PATH = "icon"; 148 private static final String ATTR_ID = "id"; 149 private static final String ATTR_CREATION_TIME = "created"; 150 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 151 private static final String ATTR_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint"; 152 private static final String ATTR_SERIAL_NO = "serialNumber"; 153 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 154 private static final String ATTR_PARTIAL = "partial"; 155 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 156 private static final String ATTR_USER_VERSION = "version"; 157 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 158 private static final String ATTR_PROFILE_BADGE = "profileBadge"; 159 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 160 private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; 161 private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; 162 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 163 private static final String TAG_USERS = "users"; 164 private static final String TAG_USER = "user"; 165 private static final String TAG_RESTRICTIONS = "restrictions"; 166 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 167 private static final String TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS = 168 "device_policy_global_restrictions"; 169 /** Legacy name for device owner id tag. */ 170 private static final String TAG_GLOBAL_RESTRICTION_OWNER_ID = "globalRestrictionOwnerUserId"; 171 private static final String TAG_DEVICE_OWNER_USER_ID = "deviceOwnerUserId"; 172 private static final String TAG_ENTRY = "entry"; 173 private static final String TAG_VALUE = "value"; 174 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 175 private static final String ATTR_KEY = "key"; 176 private static final String ATTR_VALUE_TYPE = "type"; 177 private static final String ATTR_MULTIPLE = "m"; 178 179 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 180 private static final String ATTR_TYPE_STRING = "s"; 181 private static final String ATTR_TYPE_BOOLEAN = "b"; 182 private static final String ATTR_TYPE_INTEGER = "i"; 183 private static final String ATTR_TYPE_BUNDLE = "B"; 184 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 185 186 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 187 private static final String USER_LIST_FILENAME = "userlist.xml"; 188 private static final String USER_PHOTO_FILENAME = "photo.png"; 189 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 190 191 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 192 private static final String XML_SUFFIX = ".xml"; 193 194 private static final int ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION = 195 UserInfo.FLAG_MANAGED_PROFILE 196 | UserInfo.FLAG_EPHEMERAL 197 | UserInfo.FLAG_RESTRICTED 198 | UserInfo.FLAG_GUEST 199 | UserInfo.FLAG_DEMO; 200 201 @VisibleForTesting 202 static final int MIN_USER_ID = 10; 203 // We need to keep process uid within Integer.MAX_VALUE. 204 @VisibleForTesting 205 static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 206 207 // Max size of the queue of recently removed users 208 @VisibleForTesting 209 static final int MAX_RECENTLY_REMOVED_IDS_SIZE = 100; 210 211 private static final int USER_VERSION = 7; 212 213 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 214 215 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 216 // without first making sure that the rest of the framework is prepared for it. 217 @VisibleForTesting 218 static final int MAX_MANAGED_PROFILES = 1; 219 220 static final int WRITE_USER_MSG = 1; 221 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 222 223 // Tron counters 224 private static final String TRON_GUEST_CREATED = "users_guest_created"; 225 private static final String TRON_USER_CREATED = "users_user_created"; 226 private static final String TRON_DEMO_CREATED = "users_demo_created"; 227 228 private final Context mContext; 229 private final PackageManagerService mPm; 230 private final Object mPackagesLock; 231 private final UserDataPreparer mUserDataPreparer; 232 // Short-term lock for internal state, when interaction/sync with PM is not required 233 private final Object mUsersLock = LockGuard.installNewLock(LockGuard.INDEX_USER); 234 private final Object mRestrictionsLock = new Object(); 235 236 private final Handler mHandler; 237 238 private final File mUsersDir; 239 private final File mUserListFile; 240 241 private static final IBinder mUserRestriconToken = new Binder(); 242 243 /** 244 * User-related information that is used for persisting to flash. Only UserInfo is 245 * directly exposed to other system apps. 246 */ 247 @VisibleForTesting 248 static class UserData { 249 // Basic user information and properties 250 UserInfo info; 251 // Account name used when there is a strong association between a user and an account 252 String account; 253 // Account information for seeding into a newly created user. This could also be 254 // used for login validation for an existing user, for updating their credentials. 255 // In the latter case, data may not need to be persisted as it is only valid for the 256 // current login session. 257 String seedAccountName; 258 String seedAccountType; 259 PersistableBundle seedAccountOptions; 260 // Whether to perist the seed account information to be available after a boot 261 boolean persistSeedData; 262 263 void clearSeedAccountData() { 264 seedAccountName = null; 265 seedAccountType = null; 266 seedAccountOptions = null; 267 persistSeedData = false; 268 } 269 } 270 271 @GuardedBy("mUsersLock") 272 private final SparseArray<UserData> mUsers = new SparseArray<>(); 273 274 /** 275 * User restrictions set via UserManager. This doesn't include restrictions set by 276 * device owner / profile owners. Only non-empty restriction bundles are stored. 277 * 278 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 279 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 280 * maybe shared between {@link #mBaseUserRestrictions} and 281 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 282 * (Otherwise we won't be able to detect what restrictions have changed in 283 * {@link #updateUserRestrictionsInternalLR}. 284 */ 285 @GuardedBy("mRestrictionsLock") 286 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 287 288 /** 289 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 290 * with device / profile owner restrictions. We'll initialize it lazily; use 291 * {@link #getEffectiveUserRestrictions} to access it. 292 * 293 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 294 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 295 * maybe shared between {@link #mBaseUserRestrictions} and 296 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 297 * (Otherwise we won't be able to detect what restrictions have changed in 298 * {@link #updateUserRestrictionsInternalLR}. 299 */ 300 @GuardedBy("mRestrictionsLock") 301 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 302 303 /** 304 * User restrictions that have already been applied in 305 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 306 * that have changed since the last 307 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 308 */ 309 @GuardedBy("mRestrictionsLock") 310 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 311 312 /** 313 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 314 * that should be applied to all users, including guests. Only non-empty restriction bundles are 315 * stored. 316 */ 317 @GuardedBy("mRestrictionsLock") 318 private final SparseArray<Bundle> mDevicePolicyGlobalUserRestrictions = new SparseArray<>(); 319 320 /** 321 * Id of the user that set global restrictions. 322 */ 323 @GuardedBy("mRestrictionsLock") 324 private int mDeviceOwnerUserId = UserHandle.USER_NULL; 325 326 /** 327 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 328 * for each user. Only non-empty restriction bundles are stored. 329 */ 330 @GuardedBy("mRestrictionsLock") 331 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 332 333 @GuardedBy("mGuestRestrictions") 334 private final Bundle mGuestRestrictions = new Bundle(); 335 336 /** 337 * Set of user IDs being actively removed. Removed IDs linger in this set 338 * for several seconds to work around a VFS caching issue. 339 * Use {@link #addRemovingUserIdLocked(int)} to add elements to this array 340 */ 341 @GuardedBy("mUsersLock") 342 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 343 344 /** 345 * Queue of recently removed userIds. Used for recycling of userIds 346 */ 347 @GuardedBy("mUsersLock") 348 private final LinkedList<Integer> mRecentlyRemovedIds = new LinkedList<>(); 349 350 @GuardedBy("mUsersLock") 351 private int[] mUserIds; 352 @GuardedBy("mPackagesLock") 353 private int mNextSerialNumber; 354 private int mUserVersion = 0; 355 356 private IAppOpsService mAppOpsService; 357 358 private final LocalService mLocalService; 359 360 @GuardedBy("mUsersLock") 361 private boolean mIsDeviceManaged; 362 363 @GuardedBy("mUsersLock") 364 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 365 366 @GuardedBy("mUserRestrictionsListeners") 367 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 368 new ArrayList<>(); 369 370 private final LockPatternUtils mLockPatternUtils; 371 372 private final String ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK = 373 "com.android.server.pm.DISABLE_QUIET_MODE_AFTER_UNLOCK"; 374 375 private final BroadcastReceiver mDisableQuietModeCallback = new BroadcastReceiver() { 376 @Override 377 public void onReceive(Context context, Intent intent) { 378 if (ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK.equals(intent.getAction())) { 379 final IntentSender target = intent.getParcelableExtra(Intent.EXTRA_INTENT); 380 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_ID, 0); 381 setQuietModeEnabled(userHandle, false); 382 if (target != null) { 383 try { 384 mContext.startIntentSender(target, null, 0, 0, 0); 385 } catch (IntentSender.SendIntentException e) { 386 /* ignore */ 387 } 388 } 389 } 390 } 391 }; 392 393 /** 394 * Whether all users should be created ephemeral. 395 */ 396 @GuardedBy("mUsersLock") 397 private boolean mForceEphemeralUsers; 398 399 @GuardedBy("mUserStates") 400 private final SparseIntArray mUserStates = new SparseIntArray(); 401 402 private static UserManagerService sInstance; 403 404 public static UserManagerService getInstance() { 405 synchronized (UserManagerService.class) { 406 return sInstance; 407 } 408 } 409 410 public static class LifeCycle extends SystemService { 411 412 private UserManagerService mUms; 413 414 /** 415 * @param context 416 */ 417 public LifeCycle(Context context) { 418 super(context); 419 } 420 421 @Override 422 public void onStart() { 423 mUms = UserManagerService.getInstance(); 424 publishBinderService(Context.USER_SERVICE, mUms); 425 } 426 427 @Override 428 public void onBootPhase(int phase) { 429 if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) { 430 mUms.cleanupPartialUsers(); 431 } 432 } 433 } 434 435 // TODO b/28848102 Add support for test dependencies injection 436 @VisibleForTesting 437 UserManagerService(Context context) { 438 this(context, null, null, new Object(), context.getCacheDir()); 439 } 440 441 /** 442 * Called by package manager to create the service. This is closely 443 * associated with the package manager, and the given lock is the 444 * package manager's own lock. 445 */ 446 UserManagerService(Context context, PackageManagerService pm, UserDataPreparer userDataPreparer, 447 Object packagesLock) { 448 this(context, pm, userDataPreparer, packagesLock, Environment.getDataDirectory()); 449 } 450 451 private UserManagerService(Context context, PackageManagerService pm, 452 UserDataPreparer userDataPreparer, Object packagesLock, File dataDir) { 453 mContext = context; 454 mPm = pm; 455 mPackagesLock = packagesLock; 456 mHandler = new MainHandler(); 457 mUserDataPreparer = userDataPreparer; 458 synchronized (mPackagesLock) { 459 mUsersDir = new File(dataDir, USER_INFO_DIR); 460 mUsersDir.mkdirs(); 461 // Make zeroth user directory, for services to migrate their files to that location 462 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 463 userZeroDir.mkdirs(); 464 FileUtils.setPermissions(mUsersDir.toString(), 465 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 466 -1, -1); 467 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 468 initDefaultGuestRestrictions(); 469 readUserListLP(); 470 sInstance = this; 471 } 472 mLocalService = new LocalService(); 473 LocalServices.addService(UserManagerInternal.class, mLocalService); 474 mLockPatternUtils = new LockPatternUtils(mContext); 475 mUserStates.put(UserHandle.USER_SYSTEM, UserState.STATE_BOOTING); 476 } 477 478 void systemReady() { 479 mAppOpsService = IAppOpsService.Stub.asInterface( 480 ServiceManager.getService(Context.APP_OPS_SERVICE)); 481 482 synchronized (mRestrictionsLock) { 483 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 484 } 485 486 UserInfo currentGuestUser = findCurrentGuestUser(); 487 if (currentGuestUser != null && !hasUserRestriction( 488 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 489 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 490 // to it, in case this guest was created in a previous version where this 491 // user restriction was not a default guest restriction. 492 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 493 } 494 495 mContext.registerReceiver(mDisableQuietModeCallback, 496 new IntentFilter(ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK), 497 null, mHandler); 498 } 499 500 void cleanupPartialUsers() { 501 // Prune out any partially created, partially removed and ephemeral users. 502 ArrayList<UserInfo> partials = new ArrayList<>(); 503 synchronized (mUsersLock) { 504 final int userSize = mUsers.size(); 505 for (int i = 0; i < userSize; i++) { 506 UserInfo ui = mUsers.valueAt(i).info; 507 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 508 partials.add(ui); 509 addRemovingUserIdLocked(ui.id); 510 ui.partial = true; 511 } 512 } 513 } 514 final int partialsSize = partials.size(); 515 for (int i = 0; i < partialsSize; i++) { 516 UserInfo ui = partials.get(i); 517 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 518 + " (name=" + ui.name + ")"); 519 removeUserState(ui.id); 520 } 521 } 522 523 @Override 524 public String getUserAccount(int userId) { 525 checkManageUserAndAcrossUsersFullPermission("get user account"); 526 synchronized (mUsersLock) { 527 return mUsers.get(userId).account; 528 } 529 } 530 531 @Override 532 public void setUserAccount(int userId, String accountName) { 533 checkManageUserAndAcrossUsersFullPermission("set user account"); 534 UserData userToUpdate = null; 535 synchronized (mPackagesLock) { 536 synchronized (mUsersLock) { 537 final UserData userData = mUsers.get(userId); 538 if (userData == null) { 539 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 540 return; 541 } 542 String currentAccount = userData.account; 543 if (!Objects.equal(currentAccount, accountName)) { 544 userData.account = accountName; 545 userToUpdate = userData; 546 } 547 } 548 549 if (userToUpdate != null) { 550 writeUserLP(userToUpdate); 551 } 552 } 553 } 554 555 @Override 556 public UserInfo getPrimaryUser() { 557 checkManageUsersPermission("query users"); 558 synchronized (mUsersLock) { 559 final int userSize = mUsers.size(); 560 for (int i = 0; i < userSize; i++) { 561 UserInfo ui = mUsers.valueAt(i).info; 562 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 563 return ui; 564 } 565 } 566 } 567 return null; 568 } 569 570 @Override 571 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 572 checkManageOrCreateUsersPermission("query users"); 573 synchronized (mUsersLock) { 574 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 575 final int userSize = mUsers.size(); 576 for (int i = 0; i < userSize; i++) { 577 UserInfo ui = mUsers.valueAt(i).info; 578 if (ui.partial) { 579 continue; 580 } 581 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 582 users.add(userWithName(ui)); 583 } 584 } 585 return users; 586 } 587 } 588 589 @Override 590 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 591 boolean returnFullInfo = true; 592 if (userId != UserHandle.getCallingUserId()) { 593 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 594 } else { 595 returnFullInfo = hasManageUsersPermission(); 596 } 597 final long ident = Binder.clearCallingIdentity(); 598 try { 599 synchronized (mUsersLock) { 600 return getProfilesLU(userId, enabledOnly, returnFullInfo); 601 } 602 } finally { 603 Binder.restoreCallingIdentity(ident); 604 } 605 } 606 607 @Override 608 public int[] getProfileIds(int userId, boolean enabledOnly) { 609 if (userId != UserHandle.getCallingUserId()) { 610 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 611 } 612 final long ident = Binder.clearCallingIdentity(); 613 try { 614 synchronized (mUsersLock) { 615 return getProfileIdsLU(userId, enabledOnly).toArray(); 616 } 617 } finally { 618 Binder.restoreCallingIdentity(ident); 619 } 620 } 621 622 /** Assume permissions already checked and caller's identity cleared */ 623 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 624 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 625 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 626 for (int i = 0; i < profileIds.size(); i++) { 627 int profileId = profileIds.get(i); 628 UserInfo userInfo = mUsers.get(profileId).info; 629 // If full info is not required - clear PII data to prevent 3P apps from reading it 630 if (!fullInfo) { 631 userInfo = new UserInfo(userInfo); 632 userInfo.name = null; 633 userInfo.iconPath = null; 634 } else { 635 userInfo = userWithName(userInfo); 636 } 637 users.add(userInfo); 638 } 639 return users; 640 } 641 642 /** 643 * Assume permissions already checked and caller's identity cleared 644 */ 645 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 646 UserInfo user = getUserInfoLU(userId); 647 IntArray result = new IntArray(mUsers.size()); 648 if (user == null) { 649 // Probably a dying user 650 return result; 651 } 652 final int userSize = mUsers.size(); 653 for (int i = 0; i < userSize; i++) { 654 UserInfo profile = mUsers.valueAt(i).info; 655 if (!isProfileOf(user, profile)) { 656 continue; 657 } 658 if (enabledOnly && !profile.isEnabled()) { 659 continue; 660 } 661 if (mRemovingUserIds.get(profile.id)) { 662 continue; 663 } 664 if (profile.partial) { 665 continue; 666 } 667 result.add(profile.id); 668 } 669 return result; 670 } 671 672 @Override 673 public int getCredentialOwnerProfile(int userHandle) { 674 checkManageUsersPermission("get the credential owner"); 675 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 676 synchronized (mUsersLock) { 677 UserInfo profileParent = getProfileParentLU(userHandle); 678 if (profileParent != null) { 679 return profileParent.id; 680 } 681 } 682 } 683 684 return userHandle; 685 } 686 687 @Override 688 public boolean isSameProfileGroup(int userId, int otherUserId) { 689 if (userId == otherUserId) return true; 690 checkManageUsersPermission("check if in the same profile group"); 691 return isSameProfileGroupNoChecks(userId, otherUserId); 692 } 693 694 private boolean isSameProfileGroupNoChecks(int userId, int otherUserId) { 695 synchronized (mUsersLock) { 696 UserInfo userInfo = getUserInfoLU(userId); 697 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 698 return false; 699 } 700 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 701 if (otherUserInfo == null 702 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 703 return false; 704 } 705 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 706 } 707 } 708 709 @Override 710 public UserInfo getProfileParent(int userHandle) { 711 checkManageUsersPermission("get the profile parent"); 712 synchronized (mUsersLock) { 713 return getProfileParentLU(userHandle); 714 } 715 } 716 717 @Override 718 public int getProfileParentId(int userHandle) { 719 checkManageUsersPermission("get the profile parent"); 720 synchronized (mUsersLock) { 721 UserInfo profileParent = getProfileParentLU(userHandle); 722 if (profileParent == null) { 723 return userHandle; 724 } 725 726 return profileParent.id; 727 } 728 } 729 730 private UserInfo getProfileParentLU(int userHandle) { 731 UserInfo profile = getUserInfoLU(userHandle); 732 if (profile == null) { 733 return null; 734 } 735 int parentUserId = profile.profileGroupId; 736 if (parentUserId == userHandle || parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 737 return null; 738 } else { 739 return getUserInfoLU(parentUserId); 740 } 741 } 742 743 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 744 return user.id == profile.id || 745 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 746 && user.profileGroupId == profile.profileGroupId); 747 } 748 749 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 750 UserHandle parentHandle, boolean inQuietMode) { 751 Intent intent = new Intent(); 752 if (inQuietMode) { 753 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 754 } else { 755 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 756 } 757 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 758 intent.putExtra(Intent.EXTRA_USER, profileHandle); 759 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 760 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 761 mContext.sendBroadcastAsUser(intent, parentHandle); 762 } 763 764 @Override 765 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { 766 checkManageUsersPermission("silence profile"); 767 boolean changed = false; 768 UserInfo profile, parent; 769 synchronized (mPackagesLock) { 770 synchronized (mUsersLock) { 771 profile = getUserInfoLU(userHandle); 772 parent = getProfileParentLU(userHandle); 773 774 } 775 if (profile == null || !profile.isManagedProfile()) { 776 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 777 } 778 if (profile.isQuietModeEnabled() != enableQuietMode) { 779 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 780 writeUserLP(getUserDataLU(profile.id)); 781 changed = true; 782 } 783 } 784 if (changed) { 785 long identity = Binder.clearCallingIdentity(); 786 try { 787 if (enableQuietMode) { 788 ActivityManager.getService().stopUser(userHandle, /* force */true, null); 789 LocalServices.getService(ActivityManagerInternal.class) 790 .killForegroundAppsForUser(userHandle); 791 } else { 792 ActivityManager.getService().startUserInBackground(userHandle); 793 } 794 } catch (RemoteException e) { 795 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 796 } finally { 797 Binder.restoreCallingIdentity(identity); 798 } 799 800 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 801 enableQuietMode); 802 } 803 } 804 805 @Override 806 public boolean isQuietModeEnabled(int userHandle) { 807 synchronized (mPackagesLock) { 808 UserInfo info; 809 synchronized (mUsersLock) { 810 info = getUserInfoLU(userHandle); 811 } 812 if (info == null || !info.isManagedProfile()) { 813 return false; 814 } 815 return info.isQuietModeEnabled(); 816 } 817 } 818 819 @Override 820 public boolean trySetQuietModeDisabled(int userHandle, IntentSender target) { 821 checkManageUsersPermission("silence profile"); 822 if (StorageManager.isUserKeyUnlocked(userHandle) 823 || !mLockPatternUtils.isSecure(userHandle)) { 824 // if the user is already unlocked, no need to show a profile challenge 825 setQuietModeEnabled(userHandle, false); 826 return true; 827 } 828 829 long identity = Binder.clearCallingIdentity(); 830 try { 831 // otherwise, we show a profile challenge to trigger decryption of the user 832 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 833 Context.KEYGUARD_SERVICE); 834 // We should use userHandle not credentialOwnerUserId here, as even if it is unified 835 // lock, confirm screenlock page will know and show personal challenge, and unlock 836 // work profile when personal challenge is correct 837 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 838 userHandle); 839 if (unlockIntent == null) { 840 return false; 841 } 842 final Intent callBackIntent = new Intent( 843 ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK); 844 if (target != null) { 845 callBackIntent.putExtra(Intent.EXTRA_INTENT, target); 846 } 847 callBackIntent.putExtra(Intent.EXTRA_USER_ID, userHandle); 848 callBackIntent.setPackage(mContext.getPackageName()); 849 callBackIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 850 final PendingIntent pendingIntent = PendingIntent.getBroadcast( 851 mContext, 852 0, 853 callBackIntent, 854 PendingIntent.FLAG_CANCEL_CURRENT | 855 PendingIntent.FLAG_ONE_SHOT | 856 PendingIntent.FLAG_IMMUTABLE); 857 // After unlocking the challenge, it will disable quiet mode and run the original 858 // intentSender 859 unlockIntent.putExtra(Intent.EXTRA_INTENT, pendingIntent.getIntentSender()); 860 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 861 mContext.startActivity(unlockIntent); 862 } finally { 863 Binder.restoreCallingIdentity(identity); 864 } 865 return false; 866 } 867 868 @Override 869 public void setUserEnabled(int userId) { 870 checkManageUsersPermission("enable user"); 871 synchronized (mPackagesLock) { 872 UserInfo info; 873 synchronized (mUsersLock) { 874 info = getUserInfoLU(userId); 875 } 876 if (info != null && !info.isEnabled()) { 877 info.flags ^= UserInfo.FLAG_DISABLED; 878 writeUserLP(getUserDataLU(info.id)); 879 } 880 } 881 } 882 883 /** 884 * Evicts a user's CE key by stopping and restarting the user. 885 * 886 * The key is evicted automatically by the user controller when the user has stopped. 887 */ 888 @Override 889 public void evictCredentialEncryptionKey(@UserIdInt int userId) { 890 checkManageUsersPermission("evict CE key"); 891 final IActivityManager am = ActivityManagerNative.getDefault(); 892 final long identity = Binder.clearCallingIdentity(); 893 try { 894 am.restartUserInBackground(userId); 895 } catch (RemoteException re) { 896 throw re.rethrowAsRuntimeException(); 897 } finally { 898 Binder.restoreCallingIdentity(identity); 899 } 900 } 901 902 @Override 903 public UserInfo getUserInfo(int userId) { 904 checkManageOrCreateUsersPermission("query user"); 905 synchronized (mUsersLock) { 906 return userWithName(getUserInfoLU(userId)); 907 } 908 } 909 910 /** 911 * Returns a UserInfo object with the name filled in, for Owner, or the original 912 * if the name is already set. 913 */ 914 private UserInfo userWithName(UserInfo orig) { 915 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 916 UserInfo withName = new UserInfo(orig); 917 withName.name = getOwnerName(); 918 return withName; 919 } else { 920 return orig; 921 } 922 } 923 924 @Override 925 public int getManagedProfileBadge(@UserIdInt int userId) { 926 int callingUserId = UserHandle.getCallingUserId(); 927 if (callingUserId != userId && !hasManageUsersPermission()) { 928 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 929 throw new SecurityException( 930 "You need MANAGE_USERS permission to: check if specified user a " + 931 "managed profile outside your profile group"); 932 } 933 } 934 synchronized (mUsersLock) { 935 UserInfo userInfo = getUserInfoLU(userId); 936 return userInfo != null ? userInfo.profileBadge : 0; 937 } 938 } 939 940 @Override 941 public boolean isManagedProfile(int userId) { 942 int callingUserId = UserHandle.getCallingUserId(); 943 if (callingUserId != userId && !hasManageUsersPermission()) { 944 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 945 throw new SecurityException( 946 "You need MANAGE_USERS permission to: check if specified user a " + 947 "managed profile outside your profile group"); 948 } 949 } 950 synchronized (mUsersLock) { 951 UserInfo userInfo = getUserInfoLU(userId); 952 return userInfo != null && userInfo.isManagedProfile(); 953 } 954 } 955 956 @Override 957 public boolean isUserUnlockingOrUnlocked(int userId) { 958 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlockingOrUnlocked"); 959 return mLocalService.isUserUnlockingOrUnlocked(userId); 960 } 961 962 @Override 963 public boolean isUserUnlocked(int userId) { 964 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlocked"); 965 return mLocalService.isUserUnlockingOrUnlocked(userId); 966 } 967 968 @Override 969 public boolean isUserRunning(int userId) { 970 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserRunning"); 971 return mLocalService.isUserRunning(userId); 972 } 973 974 private void checkManageOrInteractPermIfCallerInOtherProfileGroup(int userId, String name) { 975 int callingUserId = UserHandle.getCallingUserId(); 976 if (callingUserId == userId || isSameProfileGroupNoChecks(callingUserId, userId) || 977 hasManageUsersPermission()) { 978 return; 979 } 980 if (ActivityManager.checkComponentPermission(Manifest.permission.INTERACT_ACROSS_USERS, 981 Binder.getCallingUid(), -1, true) != PackageManager.PERMISSION_GRANTED) { 982 throw new SecurityException("You need INTERACT_ACROSS_USERS or MANAGE_USERS permission " 983 + "to: check " + name); 984 } 985 } 986 987 @Override 988 public boolean isDemoUser(int userId) { 989 int callingUserId = UserHandle.getCallingUserId(); 990 if (callingUserId != userId && !hasManageUsersPermission()) { 991 throw new SecurityException("You need MANAGE_USERS permission to query if u=" + userId 992 + " is a demo user"); 993 } 994 synchronized (mUsersLock) { 995 UserInfo userInfo = getUserInfoLU(userId); 996 return userInfo != null && userInfo.isDemo(); 997 } 998 } 999 1000 @Override 1001 public boolean isRestricted() { 1002 synchronized (mUsersLock) { 1003 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 1004 } 1005 } 1006 1007 @Override 1008 public boolean canHaveRestrictedProfile(int userId) { 1009 checkManageUsersPermission("canHaveRestrictedProfile"); 1010 synchronized (mUsersLock) { 1011 final UserInfo userInfo = getUserInfoLU(userId); 1012 if (userInfo == null || !userInfo.canHaveProfile()) { 1013 return false; 1014 } 1015 if (!userInfo.isAdmin()) { 1016 return false; 1017 } 1018 // restricted profile can be created if there is no DO set and the admin user has no PO; 1019 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 1020 } 1021 } 1022 1023 /* 1024 * Should be locked on mUsers before calling this. 1025 */ 1026 private UserInfo getUserInfoLU(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 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 1031 return null; 1032 } 1033 return userData != null ? userData.info : null; 1034 } 1035 1036 private UserData getUserDataLU(int userId) { 1037 final UserData userData = mUsers.get(userId); 1038 // If it is partial and not in the process of being removed, return as unknown user. 1039 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 1040 return null; 1041 } 1042 return userData; 1043 } 1044 1045 /** 1046 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 1047 * <p>No permissions checking or any addition checks are made</p> 1048 */ 1049 private UserInfo getUserInfoNoChecks(int userId) { 1050 synchronized (mUsersLock) { 1051 final UserData userData = mUsers.get(userId); 1052 return userData != null ? userData.info : null; 1053 } 1054 } 1055 1056 /** 1057 * Obtains {@link #mUsersLock} and return UserData from mUsers. 1058 * <p>No permissions checking or any addition checks are made</p> 1059 */ 1060 private UserData getUserDataNoChecks(int userId) { 1061 synchronized (mUsersLock) { 1062 return mUsers.get(userId); 1063 } 1064 } 1065 1066 /** Called by PackageManagerService */ 1067 public boolean exists(int userId) { 1068 return getUserInfoNoChecks(userId) != null; 1069 } 1070 1071 @Override 1072 public void setUserName(int userId, String name) { 1073 checkManageUsersPermission("rename users"); 1074 boolean changed = false; 1075 synchronized (mPackagesLock) { 1076 UserData userData = getUserDataNoChecks(userId); 1077 if (userData == null || userData.info.partial) { 1078 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 1079 return; 1080 } 1081 if (name != null && !name.equals(userData.info.name)) { 1082 userData.info.name = name; 1083 writeUserLP(userData); 1084 changed = true; 1085 } 1086 } 1087 if (changed) { 1088 sendUserInfoChangedBroadcast(userId); 1089 } 1090 } 1091 1092 @Override 1093 public void setUserIcon(int userId, Bitmap bitmap) { 1094 checkManageUsersPermission("update users"); 1095 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 1096 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 1097 return; 1098 } 1099 mLocalService.setUserIcon(userId, bitmap); 1100 } 1101 1102 1103 1104 private void sendUserInfoChangedBroadcast(int userId) { 1105 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 1106 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 1107 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1108 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 1109 } 1110 1111 @Override 1112 public ParcelFileDescriptor getUserIcon(int targetUserId) { 1113 String iconPath; 1114 synchronized (mPackagesLock) { 1115 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 1116 if (targetUserInfo == null || targetUserInfo.partial) { 1117 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 1118 return null; 1119 } 1120 1121 final int callingUserId = UserHandle.getCallingUserId(); 1122 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 1123 final int targetGroupId = targetUserInfo.profileGroupId; 1124 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 1125 && callingGroupId == targetGroupId); 1126 if ((callingUserId != targetUserId) && !sameGroup) { 1127 checkManageUsersPermission("get the icon of a user who is not related"); 1128 } 1129 1130 if (targetUserInfo.iconPath == null) { 1131 return null; 1132 } 1133 iconPath = targetUserInfo.iconPath; 1134 } 1135 1136 try { 1137 return ParcelFileDescriptor.open( 1138 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 1139 } catch (FileNotFoundException e) { 1140 Log.e(LOG_TAG, "Couldn't find icon file", e); 1141 } 1142 return null; 1143 } 1144 1145 public void makeInitialized(int userId) { 1146 checkManageUsersPermission("makeInitialized"); 1147 boolean scheduleWriteUser = false; 1148 UserData userData; 1149 synchronized (mUsersLock) { 1150 userData = mUsers.get(userId); 1151 if (userData == null || userData.info.partial) { 1152 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 1153 return; 1154 } 1155 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1156 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1157 scheduleWriteUser = true; 1158 } 1159 } 1160 if (scheduleWriteUser) { 1161 scheduleWriteUser(userData); 1162 } 1163 } 1164 1165 /** 1166 * If default guest restrictions haven't been initialized yet, add the basic 1167 * restrictions. 1168 */ 1169 private void initDefaultGuestRestrictions() { 1170 synchronized (mGuestRestrictions) { 1171 if (mGuestRestrictions.isEmpty()) { 1172 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 1173 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 1174 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 1175 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 1176 } 1177 } 1178 } 1179 1180 @Override 1181 public Bundle getDefaultGuestRestrictions() { 1182 checkManageUsersPermission("getDefaultGuestRestrictions"); 1183 synchronized (mGuestRestrictions) { 1184 return new Bundle(mGuestRestrictions); 1185 } 1186 } 1187 1188 @Override 1189 public void setDefaultGuestRestrictions(Bundle restrictions) { 1190 checkManageUsersPermission("setDefaultGuestRestrictions"); 1191 synchronized (mGuestRestrictions) { 1192 mGuestRestrictions.clear(); 1193 mGuestRestrictions.putAll(restrictions); 1194 } 1195 synchronized (mPackagesLock) { 1196 writeUserListLP(); 1197 } 1198 } 1199 1200 /** 1201 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions} 1202 */ 1203 private void setDevicePolicyUserRestrictionsInner(int userId, @Nullable Bundle restrictions, 1204 boolean isDeviceOwner, int cameraRestrictionScope) { 1205 final Bundle global = new Bundle(); 1206 final Bundle local = new Bundle(); 1207 1208 // Sort restrictions into local and global ensuring they don't overlap. 1209 UserRestrictionsUtils.sortToGlobalAndLocal(restrictions, isDeviceOwner, 1210 cameraRestrictionScope, global, local); 1211 1212 boolean globalChanged, localChanged; 1213 synchronized (mRestrictionsLock) { 1214 // Update global and local restrictions if they were changed. 1215 globalChanged = updateRestrictionsIfNeededLR( 1216 userId, global, mDevicePolicyGlobalUserRestrictions); 1217 localChanged = updateRestrictionsIfNeededLR( 1218 userId, local, mDevicePolicyLocalUserRestrictions); 1219 1220 if (isDeviceOwner) { 1221 // Remember the global restriction owner userId to be able to make a distinction 1222 // in getUserRestrictionSource on who set local policies. 1223 mDeviceOwnerUserId = userId; 1224 } else { 1225 if (mDeviceOwnerUserId == userId) { 1226 // When profile owner sets restrictions it passes null global bundle and we 1227 // reset global restriction owner userId. 1228 // This means this user used to have DO, but now the DO is gone and the user 1229 // instead has PO. 1230 mDeviceOwnerUserId = UserHandle.USER_NULL; 1231 } 1232 } 1233 } 1234 if (DBG) { 1235 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1236 + " global=" + global + (globalChanged ? " (changed)" : "") 1237 + " local=" + local + (localChanged ? " (changed)" : "") 1238 ); 1239 } 1240 // Don't call them within the mRestrictionsLock. 1241 synchronized (mPackagesLock) { 1242 if (localChanged || globalChanged) { 1243 writeUserLP(getUserDataNoChecks(userId)); 1244 } 1245 } 1246 1247 synchronized (mRestrictionsLock) { 1248 if (globalChanged) { 1249 applyUserRestrictionsForAllUsersLR(); 1250 } else if (localChanged) { 1251 applyUserRestrictionsLR(userId); 1252 } 1253 } 1254 } 1255 1256 /** 1257 * Updates restriction bundle for a given user in a given restriction array. If new bundle is 1258 * empty, record is removed from the array. 1259 * @return whether restrictions bundle is different from the old one. 1260 */ 1261 private boolean updateRestrictionsIfNeededLR(int userId, @Nullable Bundle restrictions, 1262 SparseArray<Bundle> restrictionsArray) { 1263 final boolean changed = 1264 !UserRestrictionsUtils.areEqual(restrictionsArray.get(userId), restrictions); 1265 if (changed) { 1266 if (!UserRestrictionsUtils.isEmpty(restrictions)) { 1267 restrictionsArray.put(userId, restrictions); 1268 } else { 1269 restrictionsArray.delete(userId); 1270 } 1271 } 1272 return changed; 1273 } 1274 1275 @GuardedBy("mRestrictionsLock") 1276 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1277 final Bundle baseRestrictions = 1278 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1279 final Bundle global = UserRestrictionsUtils.mergeAll(mDevicePolicyGlobalUserRestrictions); 1280 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1281 1282 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1283 // Common case first. 1284 return baseRestrictions; 1285 } 1286 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1287 UserRestrictionsUtils.merge(effective, global); 1288 UserRestrictionsUtils.merge(effective, local); 1289 1290 return effective; 1291 } 1292 1293 @GuardedBy("mRestrictionsLock") 1294 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1295 if (DBG) { 1296 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1297 } 1298 mCachedEffectiveUserRestrictions.remove(userId); 1299 } 1300 1301 private Bundle getEffectiveUserRestrictions(int userId) { 1302 synchronized (mRestrictionsLock) { 1303 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1304 if (restrictions == null) { 1305 restrictions = computeEffectiveUserRestrictionsLR(userId); 1306 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1307 } 1308 return restrictions; 1309 } 1310 } 1311 1312 /** @return a specific user restriction that's in effect currently. */ 1313 @Override 1314 public boolean hasUserRestriction(String restrictionKey, int userId) { 1315 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1316 return false; 1317 } 1318 Bundle restrictions = getEffectiveUserRestrictions(userId); 1319 return restrictions != null && restrictions.getBoolean(restrictionKey); 1320 } 1321 1322 /** 1323 * @hide 1324 * 1325 * Returns who set a user restriction on a user. 1326 * Requires {@link android.Manifest.permission#MANAGE_USERS} permission. 1327 * @param restrictionKey the string key representing the restriction 1328 * @param userId the id of the user for whom to retrieve the restrictions. 1329 * @return The source of user restriction. Any combination of 1330 * {@link UserManager#RESTRICTION_NOT_SET}, 1331 * {@link UserManager#RESTRICTION_SOURCE_SYSTEM}, 1332 * {@link UserManager#RESTRICTION_SOURCE_DEVICE_OWNER} 1333 * and {@link UserManager#RESTRICTION_SOURCE_PROFILE_OWNER} 1334 */ 1335 @Override 1336 public int getUserRestrictionSource(String restrictionKey, int userId) { 1337 List<EnforcingUser> enforcingUsers = getUserRestrictionSources(restrictionKey, userId); 1338 // Get "bitwise or" of restriction sources for all enforcing users. 1339 int result = UserManager.RESTRICTION_NOT_SET; 1340 for (int i = enforcingUsers.size() - 1; i >= 0; i--) { 1341 result |= enforcingUsers.get(i).getUserRestrictionSource(); 1342 } 1343 return result; 1344 } 1345 1346 @Override 1347 public List<EnforcingUser> getUserRestrictionSources( 1348 String restrictionKey, @UserIdInt int userId) { 1349 checkManageUsersPermission("getUserRestrictionSource"); 1350 1351 // Shortcut for the most common case 1352 if (!hasUserRestriction(restrictionKey, userId)) { 1353 return Collections.emptyList(); 1354 } 1355 1356 final List<EnforcingUser> result = new ArrayList<>(); 1357 1358 // Check if it is base restriction. 1359 if (hasBaseUserRestriction(restrictionKey, userId)) { 1360 result.add(new EnforcingUser( 1361 UserHandle.USER_NULL, UserManager.RESTRICTION_SOURCE_SYSTEM)); 1362 } 1363 1364 synchronized (mRestrictionsLock) { 1365 // Check if it is set by profile owner. 1366 Bundle profileOwnerRestrictions = mDevicePolicyLocalUserRestrictions.get(userId); 1367 if (UserRestrictionsUtils.contains(profileOwnerRestrictions, restrictionKey)) { 1368 result.add(getEnforcingUserLocked(userId)); 1369 } 1370 1371 // Iterate over all users who enforce global restrictions. 1372 for (int i = mDevicePolicyGlobalUserRestrictions.size() - 1; i >= 0; i--) { 1373 Bundle globalRestrictions = mDevicePolicyGlobalUserRestrictions.valueAt(i); 1374 int profileUserId = mDevicePolicyGlobalUserRestrictions.keyAt(i); 1375 if (UserRestrictionsUtils.contains(globalRestrictions, restrictionKey)) { 1376 result.add(getEnforcingUserLocked(profileUserId)); 1377 } 1378 } 1379 } 1380 return result; 1381 } 1382 1383 private EnforcingUser getEnforcingUserLocked(@UserIdInt int userId) { 1384 int source = mDeviceOwnerUserId == userId ? UserManager.RESTRICTION_SOURCE_DEVICE_OWNER 1385 : UserManager.RESTRICTION_SOURCE_PROFILE_OWNER; 1386 return new EnforcingUser(userId, source); 1387 } 1388 1389 /** 1390 * @return UserRestrictions that are in effect currently. This always returns a new 1391 * {@link Bundle}. 1392 */ 1393 @Override 1394 public Bundle getUserRestrictions(int userId) { 1395 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1396 } 1397 1398 @Override 1399 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1400 checkManageUsersPermission("hasBaseUserRestriction"); 1401 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1402 return false; 1403 } 1404 synchronized (mRestrictionsLock) { 1405 Bundle bundle = mBaseUserRestrictions.get(userId); 1406 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1407 } 1408 } 1409 1410 @Override 1411 public void setUserRestriction(String key, boolean value, int userId) { 1412 checkManageUsersPermission("setUserRestriction"); 1413 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1414 return; 1415 } 1416 synchronized (mRestrictionsLock) { 1417 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1418 // a copy. 1419 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1420 mBaseUserRestrictions.get(userId)); 1421 newRestrictions.putBoolean(key, value); 1422 1423 updateUserRestrictionsInternalLR(newRestrictions, userId); 1424 } 1425 } 1426 1427 /** 1428 * Optionally updating user restrictions, calculate the effective user restrictions and also 1429 * propagate to other services and system settings. 1430 * 1431 * @param newBaseRestrictions User restrictions to set. 1432 * If null, will not update user restrictions and only does the propagation. 1433 * @param userId target user ID. 1434 */ 1435 @GuardedBy("mRestrictionsLock") 1436 private void updateUserRestrictionsInternalLR( 1437 @Nullable Bundle newBaseRestrictions, int userId) { 1438 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1439 mAppliedUserRestrictions.get(userId)); 1440 1441 // Update base restrictions. 1442 if (newBaseRestrictions != null) { 1443 // If newBaseRestrictions == the current one, it's probably a bug. 1444 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1445 1446 Preconditions.checkState(prevBaseRestrictions != newBaseRestrictions); 1447 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1448 != newBaseRestrictions); 1449 1450 if (updateRestrictionsIfNeededLR(userId, newBaseRestrictions, mBaseUserRestrictions)) { 1451 scheduleWriteUser(getUserDataNoChecks(userId)); 1452 } 1453 } 1454 1455 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1456 1457 mCachedEffectiveUserRestrictions.put(userId, effective); 1458 1459 // Apply the new restrictions. 1460 if (DBG) { 1461 debug("Applying user restrictions: userId=" + userId 1462 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1463 } 1464 1465 if (mAppOpsService != null) { // We skip it until system-ready. 1466 mHandler.post(new Runnable() { 1467 @Override 1468 public void run() { 1469 try { 1470 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1471 } catch (RemoteException e) { 1472 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1473 } 1474 } 1475 }); 1476 } 1477 1478 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1479 1480 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1481 } 1482 1483 private void propagateUserRestrictionsLR(final int userId, 1484 Bundle newRestrictions, Bundle prevRestrictions) { 1485 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1486 // actually, but we still need some kind of synchronization otherwise we might end up 1487 // calling listeners out-of-order, thus "LR". 1488 1489 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1490 return; 1491 } 1492 1493 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1494 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1495 1496 mHandler.post(new Runnable() { 1497 @Override 1498 public void run() { 1499 UserRestrictionsUtils.applyUserRestrictions( 1500 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1501 1502 final UserRestrictionsListener[] listeners; 1503 synchronized (mUserRestrictionsListeners) { 1504 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1505 mUserRestrictionsListeners.toArray(listeners); 1506 } 1507 for (int i = 0; i < listeners.length; i++) { 1508 listeners[i].onUserRestrictionsChanged(userId, 1509 newRestrictionsFinal, prevRestrictionsFinal); 1510 } 1511 1512 final Intent broadcast = new Intent(UserManager.ACTION_USER_RESTRICTIONS_CHANGED) 1513 .setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1514 mContext.sendBroadcastAsUser(broadcast, UserHandle.of(userId)); 1515 } 1516 }); 1517 } 1518 1519 // Package private for the inner class. 1520 void applyUserRestrictionsLR(int userId) { 1521 updateUserRestrictionsInternalLR(null, userId); 1522 } 1523 1524 @GuardedBy("mRestrictionsLock") 1525 // Package private for the inner class. 1526 void applyUserRestrictionsForAllUsersLR() { 1527 if (DBG) { 1528 debug("applyUserRestrictionsForAllUsersLR"); 1529 } 1530 // First, invalidate all cached values. 1531 mCachedEffectiveUserRestrictions.clear(); 1532 1533 // We don't want to call into ActivityManagerService while taking a lock, so we'll call 1534 // it on a handler. 1535 final Runnable r = new Runnable() { 1536 @Override 1537 public void run() { 1538 // Then get the list of running users. 1539 final int[] runningUsers; 1540 try { 1541 runningUsers = ActivityManager.getService().getRunningUserIds(); 1542 } catch (RemoteException e) { 1543 Log.w(LOG_TAG, "Unable to access ActivityManagerService"); 1544 return; 1545 } 1546 // Then re-calculate the effective restrictions and apply, only for running users. 1547 // It's okay if a new user has started after the getRunningUserIds() call, 1548 // because we'll do the same thing (re-calculate the restrictions and apply) 1549 // when we start a user. 1550 synchronized (mRestrictionsLock) { 1551 for (int i = 0; i < runningUsers.length; i++) { 1552 applyUserRestrictionsLR(runningUsers[i]); 1553 } 1554 } 1555 } 1556 }; 1557 mHandler.post(r); 1558 } 1559 1560 /** 1561 * Check if we've hit the limit of how many users can be created. 1562 */ 1563 private boolean isUserLimitReached() { 1564 int count; 1565 synchronized (mUsersLock) { 1566 count = getAliveUsersExcludingGuestsCountLU(); 1567 } 1568 return count >= UserManager.getMaxSupportedUsers(); 1569 } 1570 1571 @Override 1572 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1573 checkManageUsersPermission("check if more managed profiles can be added."); 1574 if (ActivityManager.isLowRamDeviceStatic()) { 1575 return false; 1576 } 1577 if (!mContext.getPackageManager().hasSystemFeature( 1578 PackageManager.FEATURE_MANAGED_USERS)) { 1579 return false; 1580 } 1581 // Limit number of managed profiles that can be created 1582 final int managedProfilesCount = getProfiles(userId, false).size() - 1; 1583 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1584 if (managedProfilesCount - profilesRemovedCount >= getMaxManagedProfiles()) { 1585 return false; 1586 } 1587 synchronized(mUsersLock) { 1588 UserInfo userInfo = getUserInfoLU(userId); 1589 if (userInfo == null || !userInfo.canHaveProfile()) { 1590 return false; 1591 } 1592 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1593 - profilesRemovedCount; 1594 // We allow creating a managed profile in the special case where there is only one user. 1595 return usersCountAfterRemoving == 1 1596 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1597 } 1598 } 1599 1600 private int getAliveUsersExcludingGuestsCountLU() { 1601 int aliveUserCount = 0; 1602 final int totalUserCount = mUsers.size(); 1603 // Skip over users being removed 1604 for (int i = 0; i < totalUserCount; i++) { 1605 UserInfo user = mUsers.valueAt(i).info; 1606 if (!mRemovingUserIds.get(user.id) && !user.isGuest()) { 1607 aliveUserCount++; 1608 } 1609 } 1610 return aliveUserCount; 1611 } 1612 1613 /** 1614 * Enforces that only the system UID or root's UID or apps that have the 1615 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1616 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1617 * permissions can make certain calls to the UserManager. 1618 * 1619 * @param message used as message if SecurityException is thrown 1620 * @throws SecurityException if the caller does not have enough privilege. 1621 */ 1622 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1623 final int uid = Binder.getCallingUid(); 1624 if (uid != Process.SYSTEM_UID && uid != 0 1625 && ActivityManager.checkComponentPermission( 1626 Manifest.permission.MANAGE_USERS, 1627 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1628 && ActivityManager.checkComponentPermission( 1629 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1630 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1631 throw new SecurityException( 1632 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1633 + message); 1634 } 1635 } 1636 1637 /** 1638 * Enforces that only the system UID or root's UID or apps that have the 1639 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1640 * permission can make certain calls to the UserManager. 1641 * 1642 * @param message used as message if SecurityException is thrown 1643 * @throws SecurityException if the caller is not system or root 1644 * @see #hasManageUsersPermission() 1645 */ 1646 private static final void checkManageUsersPermission(String message) { 1647 if (!hasManageUsersPermission()) { 1648 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1649 } 1650 } 1651 1652 /** 1653 * Enforces that only the system UID or root's UID or apps that have the 1654 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1655 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} 1656 * can make certain calls to the UserManager. 1657 * 1658 * @param message used as message if SecurityException is thrown 1659 * @throws SecurityException if the caller is not system or root 1660 * @see #hasManageOrCreateUsersPermission() 1661 */ 1662 private static final void checkManageOrCreateUsersPermission(String message) { 1663 if (!hasManageOrCreateUsersPermission()) { 1664 throw new SecurityException( 1665 "You either need MANAGE_USERS or CREATE_USERS permission to: " + message); 1666 } 1667 } 1668 1669 /** 1670 * Similar to {@link #checkManageOrCreateUsersPermission(String)} but when the caller is tries 1671 * to create user/profiles other than what is allowed for 1672 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} permission, then it will only 1673 * allow callers with {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} permission. 1674 */ 1675 private static final void checkManageOrCreateUsersPermission(int creationFlags) { 1676 if ((creationFlags & ~ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION) == 0) { 1677 if (!hasManageOrCreateUsersPermission()) { 1678 throw new SecurityException("You either need MANAGE_USERS or CREATE_USERS " 1679 + "permission to create an user with flags: " + creationFlags); 1680 } 1681 } else if (!hasManageUsersPermission()) { 1682 throw new SecurityException("You need MANAGE_USERS permission to create an user " 1683 + " with flags: " + creationFlags); 1684 } 1685 } 1686 1687 /** 1688 * @return whether the calling UID is system UID or root's UID or the calling app has the 1689 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1690 */ 1691 private static final boolean hasManageUsersPermission() { 1692 final int callingUid = Binder.getCallingUid(); 1693 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1694 || callingUid == Process.ROOT_UID 1695 || ActivityManager.checkComponentPermission( 1696 android.Manifest.permission.MANAGE_USERS, 1697 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1698 } 1699 1700 /** 1701 * @return whether the calling UID is system UID or root's UID or the calling app has the 1702 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1703 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS}. 1704 */ 1705 private static final boolean hasManageOrCreateUsersPermission() { 1706 final int callingUid = Binder.getCallingUid(); 1707 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1708 || callingUid == Process.ROOT_UID 1709 || ActivityManager.checkComponentPermission( 1710 android.Manifest.permission.MANAGE_USERS, 1711 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED 1712 || ActivityManager.checkComponentPermission( 1713 android.Manifest.permission.CREATE_USERS, 1714 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1715 } 1716 1717 /** 1718 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1719 * UserManager. 1720 * 1721 * @param message used as message if SecurityException is thrown 1722 * @throws SecurityException if the caller is not system or root 1723 */ 1724 private static void checkSystemOrRoot(String message) { 1725 final int uid = Binder.getCallingUid(); 1726 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1727 throw new SecurityException("Only system may: " + message); 1728 } 1729 } 1730 1731 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1732 try { 1733 File dir = new File(mUsersDir, Integer.toString(info.id)); 1734 File file = new File(dir, USER_PHOTO_FILENAME); 1735 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1736 if (!dir.exists()) { 1737 dir.mkdir(); 1738 FileUtils.setPermissions( 1739 dir.getPath(), 1740 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1741 -1, -1); 1742 } 1743 FileOutputStream os; 1744 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1745 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1746 info.iconPath = file.getAbsolutePath(); 1747 } 1748 try { 1749 os.close(); 1750 } catch (IOException ioe) { 1751 // What the ... ! 1752 } 1753 tmp.delete(); 1754 } catch (FileNotFoundException e) { 1755 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1756 } 1757 } 1758 1759 /** 1760 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1761 * cache it elsewhere. 1762 * @return the array of user ids. 1763 */ 1764 public int[] getUserIds() { 1765 synchronized (mUsersLock) { 1766 return mUserIds; 1767 } 1768 } 1769 1770 private void readUserListLP() { 1771 if (!mUserListFile.exists()) { 1772 fallbackToSingleUserLP(); 1773 return; 1774 } 1775 FileInputStream fis = null; 1776 AtomicFile userListFile = new AtomicFile(mUserListFile); 1777 try { 1778 fis = userListFile.openRead(); 1779 XmlPullParser parser = Xml.newPullParser(); 1780 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1781 int type; 1782 while ((type = parser.next()) != XmlPullParser.START_TAG 1783 && type != XmlPullParser.END_DOCUMENT) { 1784 // Skip 1785 } 1786 1787 if (type != XmlPullParser.START_TAG) { 1788 Slog.e(LOG_TAG, "Unable to read user list"); 1789 fallbackToSingleUserLP(); 1790 return; 1791 } 1792 1793 mNextSerialNumber = -1; 1794 if (parser.getName().equals(TAG_USERS)) { 1795 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1796 if (lastSerialNumber != null) { 1797 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1798 } 1799 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1800 if (versionNumber != null) { 1801 mUserVersion = Integer.parseInt(versionNumber); 1802 } 1803 } 1804 1805 // Pre-O global user restriction were stored as a single bundle (as opposed to per-user 1806 // currently), take care of it in case of upgrade. 1807 Bundle oldDevicePolicyGlobalUserRestrictions = null; 1808 1809 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1810 if (type == XmlPullParser.START_TAG) { 1811 final String name = parser.getName(); 1812 if (name.equals(TAG_USER)) { 1813 String id = parser.getAttributeValue(null, ATTR_ID); 1814 1815 UserData userData = readUserLP(Integer.parseInt(id)); 1816 1817 if (userData != null) { 1818 synchronized (mUsersLock) { 1819 mUsers.put(userData.info.id, userData); 1820 if (mNextSerialNumber < 0 1821 || mNextSerialNumber <= userData.info.id) { 1822 mNextSerialNumber = userData.info.id + 1; 1823 } 1824 } 1825 } 1826 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1827 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1828 && type != XmlPullParser.END_TAG) { 1829 if (type == XmlPullParser.START_TAG) { 1830 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1831 synchronized (mGuestRestrictions) { 1832 UserRestrictionsUtils 1833 .readRestrictions(parser, mGuestRestrictions); 1834 } 1835 } 1836 break; 1837 } 1838 } 1839 } else if (name.equals(TAG_DEVICE_OWNER_USER_ID) 1840 // Legacy name, should only be encountered when upgrading from pre-O. 1841 || name.equals(TAG_GLOBAL_RESTRICTION_OWNER_ID)) { 1842 String ownerUserId = parser.getAttributeValue(null, ATTR_ID); 1843 if (ownerUserId != null) { 1844 mDeviceOwnerUserId = Integer.parseInt(ownerUserId); 1845 } 1846 } else if (name.equals(TAG_DEVICE_POLICY_RESTRICTIONS)) { 1847 // Should only happen when upgrading from pre-O (version < 7). 1848 oldDevicePolicyGlobalUserRestrictions = 1849 UserRestrictionsUtils.readRestrictions(parser); 1850 } 1851 } 1852 } 1853 1854 updateUserIds(); 1855 upgradeIfNecessaryLP(oldDevicePolicyGlobalUserRestrictions); 1856 } catch (IOException | XmlPullParserException e) { 1857 fallbackToSingleUserLP(); 1858 } finally { 1859 IoUtils.closeQuietly(fis); 1860 } 1861 } 1862 1863 /** 1864 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1865 * @param oldGlobalUserRestrictions Pre-O global device policy restrictions. 1866 */ 1867 private void upgradeIfNecessaryLP(Bundle oldGlobalUserRestrictions) { 1868 final int originalVersion = mUserVersion; 1869 int userVersion = mUserVersion; 1870 if (userVersion < 1) { 1871 // Assign a proper name for the owner, if not initialized correctly before 1872 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1873 if ("Primary".equals(userData.info.name)) { 1874 userData.info.name = 1875 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1876 scheduleWriteUser(userData); 1877 } 1878 userVersion = 1; 1879 } 1880 1881 if (userVersion < 2) { 1882 // Owner should be marked as initialized 1883 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1884 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1885 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1886 scheduleWriteUser(userData); 1887 } 1888 userVersion = 2; 1889 } 1890 1891 1892 if (userVersion < 4) { 1893 userVersion = 4; 1894 } 1895 1896 if (userVersion < 5) { 1897 initDefaultGuestRestrictions(); 1898 userVersion = 5; 1899 } 1900 1901 if (userVersion < 6) { 1902 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1903 synchronized (mUsersLock) { 1904 for (int i = 0; i < mUsers.size(); i++) { 1905 UserData userData = mUsers.valueAt(i); 1906 // In non-split mode, only user 0 can have restricted profiles 1907 if (!splitSystemUser && userData.info.isRestricted() 1908 && (userData.info.restrictedProfileParentId 1909 == UserInfo.NO_PROFILE_GROUP_ID)) { 1910 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1911 scheduleWriteUser(userData); 1912 } 1913 } 1914 } 1915 userVersion = 6; 1916 } 1917 1918 if (userVersion < 7) { 1919 // Previously only one user could enforce global restrictions, now it is per-user. 1920 synchronized (mRestrictionsLock) { 1921 if (!UserRestrictionsUtils.isEmpty(oldGlobalUserRestrictions) 1922 && mDeviceOwnerUserId != UserHandle.USER_NULL) { 1923 mDevicePolicyGlobalUserRestrictions.put( 1924 mDeviceOwnerUserId, oldGlobalUserRestrictions); 1925 } 1926 // ENSURE_VERIFY_APPS is now enforced globally even if put by profile owner, so move 1927 // it from local to global bundle for all users who set it. 1928 UserRestrictionsUtils.moveRestriction(UserManager.ENSURE_VERIFY_APPS, 1929 mDevicePolicyLocalUserRestrictions, mDevicePolicyGlobalUserRestrictions 1930 ); 1931 } 1932 userVersion = 7; 1933 } 1934 1935 if (userVersion < USER_VERSION) { 1936 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1937 + USER_VERSION); 1938 } else { 1939 mUserVersion = userVersion; 1940 1941 if (originalVersion < mUserVersion) { 1942 writeUserListLP(); 1943 } 1944 } 1945 } 1946 1947 private void fallbackToSingleUserLP() { 1948 int flags = UserInfo.FLAG_INITIALIZED; 1949 // In split system user mode, the admin and primary flags are assigned to the first human 1950 // user. 1951 if (!UserManager.isSplitSystemUser()) { 1952 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1953 } 1954 // Create the system user 1955 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 1956 UserData userData = putUserInfo(system); 1957 mNextSerialNumber = MIN_USER_ID; 1958 mUserVersion = USER_VERSION; 1959 1960 Bundle restrictions = new Bundle(); 1961 try { 1962 final String[] defaultFirstUserRestrictions = mContext.getResources().getStringArray( 1963 com.android.internal.R.array.config_defaultFirstUserRestrictions); 1964 for (String userRestriction : defaultFirstUserRestrictions) { 1965 if (UserRestrictionsUtils.isValidRestriction(userRestriction)) { 1966 restrictions.putBoolean(userRestriction, true); 1967 } 1968 } 1969 } catch (Resources.NotFoundException e) { 1970 Log.e(LOG_TAG, "Couldn't find resource: config_defaultFirstUserRestrictions", e); 1971 } 1972 1973 if (!restrictions.isEmpty()) { 1974 synchronized (mRestrictionsLock) { 1975 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1976 } 1977 } 1978 1979 updateUserIds(); 1980 initDefaultGuestRestrictions(); 1981 1982 writeUserLP(userData); 1983 writeUserListLP(); 1984 } 1985 1986 private String getOwnerName() { 1987 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 1988 } 1989 1990 private void scheduleWriteUser(UserData UserData) { 1991 if (DBG) { 1992 debug("scheduleWriteUser"); 1993 } 1994 // No need to wrap it within a lock -- worst case, we'll just post the same message 1995 // twice. 1996 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 1997 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 1998 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1999 } 2000 } 2001 2002 private void writeUserLP(UserData userData) { 2003 if (DBG) { 2004 debug("writeUserLP " + userData); 2005 } 2006 FileOutputStream fos = null; 2007 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 2008 try { 2009 fos = userFile.startWrite(); 2010 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2011 writeUserLP(userData, bos); 2012 userFile.finishWrite(fos); 2013 } catch (Exception ioe) { 2014 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 2015 userFile.failWrite(fos); 2016 } 2017 } 2018 2019 /* 2020 * Writes the user file in this format: 2021 * 2022 * <user flags="20039023" id="0"> 2023 * <name>Primary</name> 2024 * </user> 2025 */ 2026 @VisibleForTesting 2027 void writeUserLP(UserData userData, OutputStream os) 2028 throws IOException, XmlPullParserException { 2029 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2030 final XmlSerializer serializer = new FastXmlSerializer(); 2031 serializer.setOutput(os, StandardCharsets.UTF_8.name()); 2032 serializer.startDocument(null, true); 2033 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2034 2035 final UserInfo userInfo = userData.info; 2036 serializer.startTag(null, TAG_USER); 2037 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 2038 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 2039 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 2040 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 2041 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 2042 Long.toString(userInfo.lastLoggedInTime)); 2043 if (userInfo.lastLoggedInFingerprint != null) { 2044 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 2045 userInfo.lastLoggedInFingerprint); 2046 } 2047 if (userInfo.iconPath != null) { 2048 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 2049 } 2050 if (userInfo.partial) { 2051 serializer.attribute(null, ATTR_PARTIAL, "true"); 2052 } 2053 if (userInfo.guestToRemove) { 2054 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 2055 } 2056 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 2057 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 2058 Integer.toString(userInfo.profileGroupId)); 2059 } 2060 serializer.attribute(null, ATTR_PROFILE_BADGE, 2061 Integer.toString(userInfo.profileBadge)); 2062 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 2063 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 2064 Integer.toString(userInfo.restrictedProfileParentId)); 2065 } 2066 // Write seed data 2067 if (userData.persistSeedData) { 2068 if (userData.seedAccountName != null) { 2069 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 2070 } 2071 if (userData.seedAccountType != null) { 2072 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 2073 } 2074 } 2075 if (userInfo.name != null) { 2076 serializer.startTag(null, TAG_NAME); 2077 serializer.text(userInfo.name); 2078 serializer.endTag(null, TAG_NAME); 2079 } 2080 synchronized (mRestrictionsLock) { 2081 UserRestrictionsUtils.writeRestrictions(serializer, 2082 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 2083 UserRestrictionsUtils.writeRestrictions(serializer, 2084 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 2085 TAG_DEVICE_POLICY_RESTRICTIONS); 2086 UserRestrictionsUtils.writeRestrictions(serializer, 2087 mDevicePolicyGlobalUserRestrictions.get(userInfo.id), 2088 TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS); 2089 } 2090 2091 if (userData.account != null) { 2092 serializer.startTag(null, TAG_ACCOUNT); 2093 serializer.text(userData.account); 2094 serializer.endTag(null, TAG_ACCOUNT); 2095 } 2096 2097 if (userData.persistSeedData && userData.seedAccountOptions != null) { 2098 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2099 userData.seedAccountOptions.saveToXml(serializer); 2100 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2101 } 2102 2103 serializer.endTag(null, TAG_USER); 2104 2105 serializer.endDocument(); 2106 } 2107 2108 /* 2109 * Writes the user list file in this format: 2110 * 2111 * <users nextSerialNumber="3"> 2112 * <user id="0"></user> 2113 * <user id="2"></user> 2114 * </users> 2115 */ 2116 private void writeUserListLP() { 2117 if (DBG) { 2118 debug("writeUserList"); 2119 } 2120 FileOutputStream fos = null; 2121 AtomicFile userListFile = new AtomicFile(mUserListFile); 2122 try { 2123 fos = userListFile.startWrite(); 2124 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2125 2126 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2127 final XmlSerializer serializer = new FastXmlSerializer(); 2128 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2129 serializer.startDocument(null, true); 2130 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2131 2132 serializer.startTag(null, TAG_USERS); 2133 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 2134 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 2135 2136 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 2137 synchronized (mGuestRestrictions) { 2138 UserRestrictionsUtils 2139 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 2140 } 2141 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 2142 serializer.startTag(null, TAG_DEVICE_OWNER_USER_ID); 2143 serializer.attribute(null, ATTR_ID, Integer.toString(mDeviceOwnerUserId)); 2144 serializer.endTag(null, TAG_DEVICE_OWNER_USER_ID); 2145 int[] userIdsToWrite; 2146 synchronized (mUsersLock) { 2147 userIdsToWrite = new int[mUsers.size()]; 2148 for (int i = 0; i < userIdsToWrite.length; i++) { 2149 UserInfo user = mUsers.valueAt(i).info; 2150 userIdsToWrite[i] = user.id; 2151 } 2152 } 2153 for (int id : userIdsToWrite) { 2154 serializer.startTag(null, TAG_USER); 2155 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 2156 serializer.endTag(null, TAG_USER); 2157 } 2158 2159 serializer.endTag(null, TAG_USERS); 2160 2161 serializer.endDocument(); 2162 userListFile.finishWrite(fos); 2163 } catch (Exception e) { 2164 userListFile.failWrite(fos); 2165 Slog.e(LOG_TAG, "Error writing user list"); 2166 } 2167 } 2168 2169 private UserData readUserLP(int id) { 2170 FileInputStream fis = null; 2171 try { 2172 AtomicFile userFile = 2173 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 2174 fis = userFile.openRead(); 2175 return readUserLP(id, fis); 2176 } catch (IOException ioe) { 2177 Slog.e(LOG_TAG, "Error reading user list"); 2178 } catch (XmlPullParserException pe) { 2179 Slog.e(LOG_TAG, "Error reading user list"); 2180 } finally { 2181 IoUtils.closeQuietly(fis); 2182 } 2183 return null; 2184 } 2185 2186 @VisibleForTesting 2187 UserData readUserLP(int id, InputStream is) throws IOException, 2188 XmlPullParserException { 2189 int flags = 0; 2190 int serialNumber = id; 2191 String name = null; 2192 String account = null; 2193 String iconPath = null; 2194 long creationTime = 0L; 2195 long lastLoggedInTime = 0L; 2196 String lastLoggedInFingerprint = null; 2197 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 2198 int profileBadge = 0; 2199 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 2200 boolean partial = false; 2201 boolean guestToRemove = false; 2202 boolean persistSeedData = false; 2203 String seedAccountName = null; 2204 String seedAccountType = null; 2205 PersistableBundle seedAccountOptions = null; 2206 Bundle baseRestrictions = null; 2207 Bundle localRestrictions = null; 2208 Bundle globalRestrictions = null; 2209 2210 XmlPullParser parser = Xml.newPullParser(); 2211 parser.setInput(is, StandardCharsets.UTF_8.name()); 2212 int type; 2213 while ((type = parser.next()) != XmlPullParser.START_TAG 2214 && type != XmlPullParser.END_DOCUMENT) { 2215 // Skip 2216 } 2217 2218 if (type != XmlPullParser.START_TAG) { 2219 Slog.e(LOG_TAG, "Unable to read user " + id); 2220 return null; 2221 } 2222 2223 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 2224 int storedId = readIntAttribute(parser, ATTR_ID, -1); 2225 if (storedId != id) { 2226 Slog.e(LOG_TAG, "User id does not match the file name"); 2227 return null; 2228 } 2229 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 2230 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 2231 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 2232 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 2233 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 2234 lastLoggedInFingerprint = parser.getAttributeValue(null, 2235 ATTR_LAST_LOGGED_IN_FINGERPRINT); 2236 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 2237 UserInfo.NO_PROFILE_GROUP_ID); 2238 profileBadge = readIntAttribute(parser, ATTR_PROFILE_BADGE, 0); 2239 restrictedProfileParentId = readIntAttribute(parser, 2240 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 2241 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 2242 if ("true".equals(valueString)) { 2243 partial = true; 2244 } 2245 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 2246 if ("true".equals(valueString)) { 2247 guestToRemove = true; 2248 } 2249 2250 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 2251 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 2252 if (seedAccountName != null || seedAccountType != null) { 2253 persistSeedData = true; 2254 } 2255 2256 int outerDepth = parser.getDepth(); 2257 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 2258 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2259 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2260 continue; 2261 } 2262 String tag = parser.getName(); 2263 if (TAG_NAME.equals(tag)) { 2264 type = parser.next(); 2265 if (type == XmlPullParser.TEXT) { 2266 name = parser.getText(); 2267 } 2268 } else if (TAG_RESTRICTIONS.equals(tag)) { 2269 baseRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2270 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 2271 localRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2272 } else if (TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS.equals(tag)) { 2273 globalRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2274 } else if (TAG_ACCOUNT.equals(tag)) { 2275 type = parser.next(); 2276 if (type == XmlPullParser.TEXT) { 2277 account = parser.getText(); 2278 } 2279 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 2280 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 2281 persistSeedData = true; 2282 } 2283 } 2284 } 2285 2286 // Create the UserInfo object that gets passed around 2287 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 2288 userInfo.serialNumber = serialNumber; 2289 userInfo.creationTime = creationTime; 2290 userInfo.lastLoggedInTime = lastLoggedInTime; 2291 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 2292 userInfo.partial = partial; 2293 userInfo.guestToRemove = guestToRemove; 2294 userInfo.profileGroupId = profileGroupId; 2295 userInfo.profileBadge = profileBadge; 2296 userInfo.restrictedProfileParentId = restrictedProfileParentId; 2297 2298 // Create the UserData object that's internal to this class 2299 UserData userData = new UserData(); 2300 userData.info = userInfo; 2301 userData.account = account; 2302 userData.seedAccountName = seedAccountName; 2303 userData.seedAccountType = seedAccountType; 2304 userData.persistSeedData = persistSeedData; 2305 userData.seedAccountOptions = seedAccountOptions; 2306 2307 synchronized (mRestrictionsLock) { 2308 if (baseRestrictions != null) { 2309 mBaseUserRestrictions.put(id, baseRestrictions); 2310 } 2311 if (localRestrictions != null) { 2312 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 2313 } 2314 if (globalRestrictions != null) { 2315 mDevicePolicyGlobalUserRestrictions.put(id, globalRestrictions); 2316 } 2317 } 2318 return userData; 2319 } 2320 2321 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 2322 String valueString = parser.getAttributeValue(null, attr); 2323 if (valueString == null) return defaultValue; 2324 try { 2325 return Integer.parseInt(valueString); 2326 } catch (NumberFormatException nfe) { 2327 return defaultValue; 2328 } 2329 } 2330 2331 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 2332 String valueString = parser.getAttributeValue(null, attr); 2333 if (valueString == null) return defaultValue; 2334 try { 2335 return Long.parseLong(valueString); 2336 } catch (NumberFormatException nfe) { 2337 return defaultValue; 2338 } 2339 } 2340 2341 /** 2342 * Removes the app restrictions file for a specific package and user id, if it exists. 2343 */ 2344 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 2345 synchronized (mPackagesLock) { 2346 File dir = Environment.getUserSystemDirectory(userId); 2347 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 2348 if (resFile.exists()) { 2349 resFile.delete(); 2350 } 2351 } 2352 } 2353 2354 @Override 2355 public UserInfo createProfileForUser(String name, int flags, int userId, 2356 String[] disallowedPackages) { 2357 checkManageOrCreateUsersPermission(flags); 2358 return createUserInternal(name, flags, userId, disallowedPackages); 2359 } 2360 2361 @Override 2362 public UserInfo createProfileForUserEvenWhenDisallowed(String name, int flags, int userId, 2363 String[] disallowedPackages) { 2364 checkManageOrCreateUsersPermission(flags); 2365 return createUserInternalUnchecked(name, flags, userId, disallowedPackages); 2366 } 2367 2368 @Override 2369 public boolean removeUserEvenWhenDisallowed(@UserIdInt int userHandle) { 2370 checkManageOrCreateUsersPermission("Only the system can remove users"); 2371 return removeUserUnchecked(userHandle); 2372 } 2373 2374 @Override 2375 public UserInfo createUser(String name, int flags) { 2376 checkManageOrCreateUsersPermission(flags); 2377 return createUserInternal(name, flags, UserHandle.USER_NULL); 2378 } 2379 2380 private UserInfo createUserInternal(String name, int flags, int parentId) { 2381 return createUserInternal(name, flags, parentId, null); 2382 } 2383 2384 private UserInfo createUserInternal(String name, int flags, int parentId, 2385 String[] disallowedPackages) { 2386 String restriction = ((flags & UserInfo.FLAG_MANAGED_PROFILE) != 0) 2387 ? UserManager.DISALLOW_ADD_MANAGED_PROFILE 2388 : UserManager.DISALLOW_ADD_USER; 2389 if (hasUserRestriction(restriction, UserHandle.getCallingUserId())) { 2390 Log.w(LOG_TAG, "Cannot add user. " + restriction + " is enabled."); 2391 return null; 2392 } 2393 return createUserInternalUnchecked(name, flags, parentId, disallowedPackages); 2394 } 2395 2396 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId, 2397 String[] disallowedPackages) { 2398 DeviceStorageMonitorInternal dsm = LocalServices 2399 .getService(DeviceStorageMonitorInternal.class); 2400 if (dsm.isMemoryLow()) { 2401 Log.w(LOG_TAG, "Cannot add user. Not enough space on disk."); 2402 return null; 2403 } 2404 if (ActivityManager.isLowRamDeviceStatic()) { 2405 return null; 2406 } 2407 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 2408 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 2409 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 2410 final boolean isDemo = (flags & UserInfo.FLAG_DEMO) != 0; 2411 final long ident = Binder.clearCallingIdentity(); 2412 UserInfo userInfo; 2413 UserData userData; 2414 final int userId; 2415 try { 2416 synchronized (mPackagesLock) { 2417 UserData parent = null; 2418 if (parentId != UserHandle.USER_NULL) { 2419 synchronized (mUsersLock) { 2420 parent = getUserDataLU(parentId); 2421 } 2422 if (parent == null) return null; 2423 } 2424 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 2425 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 2426 return null; 2427 } 2428 if (!isGuest && !isManagedProfile && !isDemo && isUserLimitReached()) { 2429 // If we're not adding a guest/demo user or a managed profile and the limit has 2430 // been reached, cannot add a user. 2431 return null; 2432 } 2433 // If we're adding a guest and there already exists one, bail. 2434 if (isGuest && findCurrentGuestUser() != null) { 2435 return null; 2436 } 2437 // In legacy mode, restricted profile's parent can only be the owner user 2438 if (isRestricted && !UserManager.isSplitSystemUser() 2439 && (parentId != UserHandle.USER_SYSTEM)) { 2440 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 2441 return null; 2442 } 2443 if (isRestricted && UserManager.isSplitSystemUser()) { 2444 if (parent == null) { 2445 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 2446 + "specified"); 2447 return null; 2448 } 2449 if (!parent.info.canHaveProfile()) { 2450 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 2451 + "created for the specified parent user id " + parentId); 2452 return null; 2453 } 2454 } 2455 if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0 2456 && (flags & UserInfo.FLAG_DEMO) == 0) { 2457 Log.e(LOG_TAG, 2458 "Ephemeral users are supported on split-system-user systems only."); 2459 return null; 2460 } 2461 // In split system user mode, we assign the first human user the primary flag. 2462 // And if there is no device owner, we also assign the admin flag to primary user. 2463 if (UserManager.isSplitSystemUser() 2464 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2465 flags |= UserInfo.FLAG_PRIMARY; 2466 synchronized (mUsersLock) { 2467 if (!mIsDeviceManaged) { 2468 flags |= UserInfo.FLAG_ADMIN; 2469 } 2470 } 2471 } 2472 2473 userId = getNextAvailableId(); 2474 Environment.getUserSystemDirectory(userId).mkdirs(); 2475 boolean ephemeralGuests = Resources.getSystem() 2476 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2477 2478 synchronized (mUsersLock) { 2479 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2480 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2481 || (parent != null && parent.info.isEphemeral())) { 2482 flags |= UserInfo.FLAG_EPHEMERAL; 2483 } 2484 2485 userInfo = new UserInfo(userId, name, null, flags); 2486 userInfo.serialNumber = mNextSerialNumber++; 2487 long now = System.currentTimeMillis(); 2488 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2489 userInfo.partial = true; 2490 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2491 if (isManagedProfile && parentId != UserHandle.USER_NULL) { 2492 userInfo.profileBadge = getFreeProfileBadgeLU(parentId); 2493 } 2494 userData = new UserData(); 2495 userData.info = userInfo; 2496 mUsers.put(userId, userData); 2497 } 2498 writeUserLP(userData); 2499 writeUserListLP(); 2500 if (parent != null) { 2501 if (isManagedProfile) { 2502 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2503 parent.info.profileGroupId = parent.info.id; 2504 writeUserLP(parent); 2505 } 2506 userInfo.profileGroupId = parent.info.profileGroupId; 2507 } else if (isRestricted) { 2508 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2509 parent.info.restrictedProfileParentId = parent.info.id; 2510 writeUserLP(parent); 2511 } 2512 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2513 } 2514 } 2515 } 2516 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2517 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2518 mUserDataPreparer.prepareUserData(userId, userInfo.serialNumber, 2519 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2520 mPm.createNewUser(userId, disallowedPackages); 2521 userInfo.partial = false; 2522 synchronized (mPackagesLock) { 2523 writeUserLP(userData); 2524 } 2525 updateUserIds(); 2526 Bundle restrictions = new Bundle(); 2527 if (isGuest) { 2528 synchronized (mGuestRestrictions) { 2529 restrictions.putAll(mGuestRestrictions); 2530 } 2531 } 2532 synchronized (mRestrictionsLock) { 2533 mBaseUserRestrictions.append(userId, restrictions); 2534 } 2535 mPm.onNewUserCreated(userId); 2536 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2537 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2538 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2539 android.Manifest.permission.MANAGE_USERS); 2540 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED 2541 : (isDemo ? TRON_DEMO_CREATED : TRON_USER_CREATED), 1); 2542 } finally { 2543 Binder.restoreCallingIdentity(ident); 2544 } 2545 return userInfo; 2546 } 2547 2548 @VisibleForTesting 2549 UserData putUserInfo(UserInfo userInfo) { 2550 final UserData userData = new UserData(); 2551 userData.info = userInfo; 2552 synchronized (mUsers) { 2553 mUsers.put(userInfo.id, userData); 2554 } 2555 return userData; 2556 } 2557 2558 @VisibleForTesting 2559 void removeUserInfo(int userId) { 2560 synchronized (mUsers) { 2561 mUsers.remove(userId); 2562 } 2563 } 2564 2565 /** 2566 * @hide 2567 */ 2568 @Override 2569 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2570 checkManageOrCreateUsersPermission("setupRestrictedProfile"); 2571 final UserInfo user = createProfileForUser( 2572 name, UserInfo.FLAG_RESTRICTED, parentUserId, null); 2573 if (user == null) { 2574 return null; 2575 } 2576 long identity = Binder.clearCallingIdentity(); 2577 try { 2578 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2579 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2580 // the putIntForUser() will fail. 2581 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2582 android.provider.Settings.Secure.LOCATION_MODE, 2583 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2584 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2585 } finally { 2586 Binder.restoreCallingIdentity(identity); 2587 } 2588 return user; 2589 } 2590 2591 /** 2592 * Find the current guest user. If the Guest user is partial, 2593 * then do not include it in the results as it is about to die. 2594 */ 2595 private UserInfo findCurrentGuestUser() { 2596 synchronized (mUsersLock) { 2597 final int size = mUsers.size(); 2598 for (int i = 0; i < size; i++) { 2599 final UserInfo user = mUsers.valueAt(i).info; 2600 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2601 return user; 2602 } 2603 } 2604 } 2605 return null; 2606 } 2607 2608 /** 2609 * Mark this guest user for deletion to allow us to create another guest 2610 * and switch to that user before actually removing this guest. 2611 * @param userHandle the userid of the current guest 2612 * @return whether the user could be marked for deletion 2613 */ 2614 @Override 2615 public boolean markGuestForDeletion(int userHandle) { 2616 checkManageUsersPermission("Only the system can remove users"); 2617 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2618 UserManager.DISALLOW_REMOVE_USER, false)) { 2619 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2620 return false; 2621 } 2622 2623 long ident = Binder.clearCallingIdentity(); 2624 try { 2625 final UserData userData; 2626 synchronized (mPackagesLock) { 2627 synchronized (mUsersLock) { 2628 userData = mUsers.get(userHandle); 2629 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2630 return false; 2631 } 2632 } 2633 if (!userData.info.isGuest()) { 2634 return false; 2635 } 2636 // We set this to a guest user that is to be removed. This is a temporary state 2637 // where we are allowed to add new Guest users, even if this one is still not 2638 // removed. This user will still show up in getUserInfo() calls. 2639 // If we don't get around to removing this Guest user, it will be purged on next 2640 // startup. 2641 userData.info.guestToRemove = true; 2642 // Mark it as disabled, so that it isn't returned any more when 2643 // profiles are queried. 2644 userData.info.flags |= UserInfo.FLAG_DISABLED; 2645 writeUserLP(userData); 2646 } 2647 } finally { 2648 Binder.restoreCallingIdentity(ident); 2649 } 2650 return true; 2651 } 2652 2653 /** 2654 * Removes a user and all data directories created for that user. This method should be called 2655 * after the user's processes have been terminated. 2656 * @param userHandle the user's id 2657 */ 2658 @Override 2659 public boolean removeUser(int userHandle) { 2660 Slog.i(LOG_TAG, "removeUser u" + userHandle); 2661 checkManageOrCreateUsersPermission("Only the system can remove users"); 2662 2663 final boolean isManagedProfile; 2664 synchronized (mUsersLock) { 2665 UserInfo userInfo = getUserInfoLU(userHandle); 2666 isManagedProfile = userInfo != null && userInfo.isManagedProfile(); 2667 } 2668 String restriction = isManagedProfile 2669 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE : UserManager.DISALLOW_REMOVE_USER; 2670 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean(restriction, false)) { 2671 Log.w(LOG_TAG, "Cannot remove user. " + restriction + " is enabled."); 2672 return false; 2673 } 2674 return removeUserUnchecked(userHandle); 2675 } 2676 2677 private boolean removeUserUnchecked(int userHandle) { 2678 long ident = Binder.clearCallingIdentity(); 2679 try { 2680 final UserData userData; 2681 int currentUser = ActivityManager.getCurrentUser(); 2682 if (currentUser == userHandle) { 2683 Log.w(LOG_TAG, "Current user cannot be removed"); 2684 return false; 2685 } 2686 synchronized (mPackagesLock) { 2687 synchronized (mUsersLock) { 2688 userData = mUsers.get(userHandle); 2689 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2690 return false; 2691 } 2692 2693 addRemovingUserIdLocked(userHandle); 2694 } 2695 2696 try { 2697 mAppOpsService.removeUser(userHandle); 2698 } catch (RemoteException e) { 2699 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2700 } 2701 // Set this to a partially created user, so that the user will be purged 2702 // on next startup, in case the runtime stops now before stopping and 2703 // removing the user completely. 2704 userData.info.partial = true; 2705 // Mark it as disabled, so that it isn't returned any more when 2706 // profiles are queried. 2707 userData.info.flags |= UserInfo.FLAG_DISABLED; 2708 writeUserLP(userData); 2709 } 2710 2711 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2712 && userData.info.isManagedProfile()) { 2713 // Send broadcast to notify system that the user removed was a 2714 // managed user. 2715 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2716 } 2717 2718 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2719 int res; 2720 try { 2721 res = ActivityManager.getService().stopUser(userHandle, /* force= */ true, 2722 new IStopUserCallback.Stub() { 2723 @Override 2724 public void userStopped(int userId) { 2725 finishRemoveUser(userId); 2726 } 2727 @Override 2728 public void userStopAborted(int userId) { 2729 } 2730 }); 2731 } catch (RemoteException e) { 2732 return false; 2733 } 2734 return res == ActivityManager.USER_OP_SUCCESS; 2735 } finally { 2736 Binder.restoreCallingIdentity(ident); 2737 } 2738 } 2739 2740 @VisibleForTesting 2741 void addRemovingUserIdLocked(int userId) { 2742 // We remember deleted user IDs to prevent them from being 2743 // reused during the current boot; they can still be reused 2744 // after a reboot or recycling of userIds. 2745 mRemovingUserIds.put(userId, true); 2746 mRecentlyRemovedIds.add(userId); 2747 // Keep LRU queue of recently removed IDs for recycling 2748 if (mRecentlyRemovedIds.size() > MAX_RECENTLY_REMOVED_IDS_SIZE) { 2749 mRecentlyRemovedIds.removeFirst(); 2750 } 2751 } 2752 2753 void finishRemoveUser(final int userHandle) { 2754 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2755 // Let other services shutdown any activity and clean up their state before completely 2756 // wiping the user's system directory and removing from the user list 2757 long ident = Binder.clearCallingIdentity(); 2758 try { 2759 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2760 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2761 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2762 android.Manifest.permission.MANAGE_USERS, 2763 2764 new BroadcastReceiver() { 2765 @Override 2766 public void onReceive(Context context, Intent intent) { 2767 if (DBG) { 2768 Slog.i(LOG_TAG, 2769 "USER_REMOVED broadcast sent, cleaning up user data " 2770 + userHandle); 2771 } 2772 new Thread() { 2773 @Override 2774 public void run() { 2775 // Clean up any ActivityManager state 2776 LocalServices.getService(ActivityManagerInternal.class) 2777 .onUserRemoved(userHandle); 2778 removeUserState(userHandle); 2779 } 2780 }.start(); 2781 } 2782 }, 2783 2784 null, Activity.RESULT_OK, null, null); 2785 } finally { 2786 Binder.restoreCallingIdentity(ident); 2787 } 2788 } 2789 2790 private void removeUserState(final int userHandle) { 2791 try { 2792 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2793 } catch (IllegalStateException e) { 2794 // This may be simply because the user was partially created. 2795 Slog.i(LOG_TAG, 2796 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2797 } 2798 2799 // Cleanup gatekeeper secure user id 2800 try { 2801 final IGateKeeperService gk = GateKeeper.getService(); 2802 if (gk != null) { 2803 gk.clearSecureUserId(userHandle); 2804 } 2805 } catch (Exception ex) { 2806 Slog.w(LOG_TAG, "unable to clear GK secure user id"); 2807 } 2808 2809 // Cleanup package manager settings 2810 mPm.cleanUpUser(this, userHandle); 2811 2812 // Clean up all data before removing metadata 2813 mUserDataPreparer.destroyUserData(userHandle, 2814 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2815 2816 // Remove this user from the list 2817 synchronized (mUsersLock) { 2818 mUsers.remove(userHandle); 2819 mIsUserManaged.delete(userHandle); 2820 } 2821 synchronized (mUserStates) { 2822 mUserStates.delete(userHandle); 2823 } 2824 synchronized (mRestrictionsLock) { 2825 mBaseUserRestrictions.remove(userHandle); 2826 mAppliedUserRestrictions.remove(userHandle); 2827 mCachedEffectiveUserRestrictions.remove(userHandle); 2828 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2829 if (mDevicePolicyGlobalUserRestrictions.get(userHandle) != null) { 2830 mDevicePolicyGlobalUserRestrictions.remove(userHandle); 2831 applyUserRestrictionsForAllUsersLR(); 2832 } 2833 } 2834 // Update the user list 2835 synchronized (mPackagesLock) { 2836 writeUserListLP(); 2837 } 2838 // Remove user file 2839 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2840 userFile.delete(); 2841 updateUserIds(); 2842 if (RELEASE_DELETED_USER_ID) { 2843 synchronized (mUsers) { 2844 mRemovingUserIds.delete(userHandle); 2845 } 2846 } 2847 } 2848 2849 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2850 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2851 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2852 Intent.FLAG_RECEIVER_FOREGROUND); 2853 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2854 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2855 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2856 } 2857 2858 @Override 2859 public Bundle getApplicationRestrictions(String packageName) { 2860 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2861 } 2862 2863 @Override 2864 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2865 if (UserHandle.getCallingUserId() != userId 2866 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2867 checkSystemOrRoot("get application restrictions for other user/app " + packageName); 2868 } 2869 synchronized (mPackagesLock) { 2870 // Read the restrictions from XML 2871 return readApplicationRestrictionsLP(packageName, userId); 2872 } 2873 } 2874 2875 @Override 2876 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2877 int userId) { 2878 checkSystemOrRoot("set application restrictions"); 2879 if (restrictions != null) { 2880 restrictions.setDefusable(true); 2881 } 2882 synchronized (mPackagesLock) { 2883 if (restrictions == null || restrictions.isEmpty()) { 2884 cleanAppRestrictionsForPackage(packageName, userId); 2885 } else { 2886 // Write the restrictions to XML 2887 writeApplicationRestrictionsLP(packageName, restrictions, userId); 2888 } 2889 } 2890 2891 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2892 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2893 changeIntent.setPackage(packageName); 2894 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2895 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2896 } 2897 2898 private int getUidForPackage(String packageName) { 2899 long ident = Binder.clearCallingIdentity(); 2900 try { 2901 return mContext.getPackageManager().getApplicationInfo(packageName, 2902 PackageManager.MATCH_ANY_USER).uid; 2903 } catch (NameNotFoundException nnfe) { 2904 return -1; 2905 } finally { 2906 Binder.restoreCallingIdentity(ident); 2907 } 2908 } 2909 2910 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 2911 AtomicFile restrictionsFile = 2912 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2913 packageToRestrictionsFileName(packageName))); 2914 return readApplicationRestrictionsLP(restrictionsFile); 2915 } 2916 2917 @VisibleForTesting 2918 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 2919 final Bundle restrictions = new Bundle(); 2920 final ArrayList<String> values = new ArrayList<>(); 2921 if (!restrictionsFile.getBaseFile().exists()) { 2922 return restrictions; 2923 } 2924 2925 FileInputStream fis = null; 2926 try { 2927 fis = restrictionsFile.openRead(); 2928 XmlPullParser parser = Xml.newPullParser(); 2929 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2930 XmlUtils.nextElement(parser); 2931 if (parser.getEventType() != XmlPullParser.START_TAG) { 2932 Slog.e(LOG_TAG, "Unable to read restrictions file " 2933 + restrictionsFile.getBaseFile()); 2934 return restrictions; 2935 } 2936 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2937 readEntry(restrictions, values, parser); 2938 } 2939 } catch (IOException|XmlPullParserException e) { 2940 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2941 } finally { 2942 IoUtils.closeQuietly(fis); 2943 } 2944 return restrictions; 2945 } 2946 2947 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2948 XmlPullParser parser) throws XmlPullParserException, IOException { 2949 int type = parser.getEventType(); 2950 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2951 String key = parser.getAttributeValue(null, ATTR_KEY); 2952 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2953 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2954 if (multiple != null) { 2955 values.clear(); 2956 int count = Integer.parseInt(multiple); 2957 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2958 if (type == XmlPullParser.START_TAG 2959 && parser.getName().equals(TAG_VALUE)) { 2960 values.add(parser.nextText().trim()); 2961 count--; 2962 } 2963 } 2964 String [] valueStrings = new String[values.size()]; 2965 values.toArray(valueStrings); 2966 restrictions.putStringArray(key, valueStrings); 2967 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2968 restrictions.putBundle(key, readBundleEntry(parser, values)); 2969 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2970 final int outerDepth = parser.getDepth(); 2971 ArrayList<Bundle> bundleList = new ArrayList<>(); 2972 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2973 Bundle childBundle = readBundleEntry(parser, values); 2974 bundleList.add(childBundle); 2975 } 2976 restrictions.putParcelableArray(key, 2977 bundleList.toArray(new Bundle[bundleList.size()])); 2978 } else { 2979 String value = parser.nextText().trim(); 2980 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2981 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2982 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2983 restrictions.putInt(key, Integer.parseInt(value)); 2984 } else { 2985 restrictions.putString(key, value); 2986 } 2987 } 2988 } 2989 } 2990 2991 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2992 throws IOException, XmlPullParserException { 2993 Bundle childBundle = new Bundle(); 2994 final int outerDepth = parser.getDepth(); 2995 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2996 readEntry(childBundle, values, parser); 2997 } 2998 return childBundle; 2999 } 3000 3001 private void writeApplicationRestrictionsLP(String packageName, 3002 Bundle restrictions, int userId) { 3003 AtomicFile restrictionsFile = new AtomicFile( 3004 new File(Environment.getUserSystemDirectory(userId), 3005 packageToRestrictionsFileName(packageName))); 3006 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 3007 } 3008 3009 @VisibleForTesting 3010 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 3011 FileOutputStream fos = null; 3012 try { 3013 fos = restrictionsFile.startWrite(); 3014 final BufferedOutputStream bos = new BufferedOutputStream(fos); 3015 3016 final XmlSerializer serializer = new FastXmlSerializer(); 3017 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 3018 serializer.startDocument(null, true); 3019 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 3020 3021 serializer.startTag(null, TAG_RESTRICTIONS); 3022 writeBundle(restrictions, serializer); 3023 serializer.endTag(null, TAG_RESTRICTIONS); 3024 3025 serializer.endDocument(); 3026 restrictionsFile.finishWrite(fos); 3027 } catch (Exception e) { 3028 restrictionsFile.failWrite(fos); 3029 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 3030 } 3031 } 3032 3033 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 3034 throws IOException { 3035 for (String key : restrictions.keySet()) { 3036 Object value = restrictions.get(key); 3037 serializer.startTag(null, TAG_ENTRY); 3038 serializer.attribute(null, ATTR_KEY, key); 3039 3040 if (value instanceof Boolean) { 3041 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 3042 serializer.text(value.toString()); 3043 } else if (value instanceof Integer) { 3044 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 3045 serializer.text(value.toString()); 3046 } else if (value == null || value instanceof String) { 3047 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 3048 serializer.text(value != null ? (String) value : ""); 3049 } else if (value instanceof Bundle) { 3050 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3051 writeBundle((Bundle) value, serializer); 3052 } else if (value instanceof Parcelable[]) { 3053 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 3054 Parcelable[] array = (Parcelable[]) value; 3055 for (Parcelable parcelable : array) { 3056 if (!(parcelable instanceof Bundle)) { 3057 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 3058 } 3059 serializer.startTag(null, TAG_ENTRY); 3060 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3061 writeBundle((Bundle) parcelable, serializer); 3062 serializer.endTag(null, TAG_ENTRY); 3063 } 3064 } else { 3065 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 3066 String[] values = (String[]) value; 3067 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 3068 for (String choice : values) { 3069 serializer.startTag(null, TAG_VALUE); 3070 serializer.text(choice != null ? choice : ""); 3071 serializer.endTag(null, TAG_VALUE); 3072 } 3073 } 3074 serializer.endTag(null, TAG_ENTRY); 3075 } 3076 } 3077 3078 @Override 3079 public int getUserSerialNumber(int userHandle) { 3080 synchronized (mUsersLock) { 3081 if (!exists(userHandle)) return -1; 3082 return getUserInfoLU(userHandle).serialNumber; 3083 } 3084 } 3085 3086 @Override 3087 public boolean isUserNameSet(int userHandle) { 3088 synchronized (mUsersLock) { 3089 UserInfo userInfo = getUserInfoLU(userHandle); 3090 return userInfo != null && userInfo.name != null; 3091 } 3092 } 3093 3094 @Override 3095 public int getUserHandle(int userSerialNumber) { 3096 synchronized (mUsersLock) { 3097 for (int userId : mUserIds) { 3098 UserInfo info = getUserInfoLU(userId); 3099 if (info != null && info.serialNumber == userSerialNumber) return userId; 3100 } 3101 // Not found 3102 return -1; 3103 } 3104 } 3105 3106 @Override 3107 public long getUserCreationTime(int userHandle) { 3108 int callingUserId = UserHandle.getCallingUserId(); 3109 UserInfo userInfo = null; 3110 synchronized (mUsersLock) { 3111 if (callingUserId == userHandle) { 3112 userInfo = getUserInfoLU(userHandle); 3113 } else { 3114 UserInfo parent = getProfileParentLU(userHandle); 3115 if (parent != null && parent.id == callingUserId) { 3116 userInfo = getUserInfoLU(userHandle); 3117 } 3118 } 3119 } 3120 if (userInfo == null) { 3121 throw new SecurityException("userHandle can only be the calling user or a managed " 3122 + "profile associated with this user"); 3123 } 3124 return userInfo.creationTime; 3125 } 3126 3127 /** 3128 * Caches the list of user ids in an array, adjusting the array size when necessary. 3129 */ 3130 private void updateUserIds() { 3131 int num = 0; 3132 synchronized (mUsersLock) { 3133 final int userSize = mUsers.size(); 3134 for (int i = 0; i < userSize; i++) { 3135 if (!mUsers.valueAt(i).info.partial) { 3136 num++; 3137 } 3138 } 3139 final int[] newUsers = new int[num]; 3140 int n = 0; 3141 for (int i = 0; i < userSize; i++) { 3142 if (!mUsers.valueAt(i).info.partial) { 3143 newUsers[n++] = mUsers.keyAt(i); 3144 } 3145 } 3146 mUserIds = newUsers; 3147 } 3148 } 3149 3150 /** 3151 * Called right before a user is started. This gives us a chance to prepare 3152 * app storage and apply any user restrictions. 3153 */ 3154 public void onBeforeStartUser(int userId) { 3155 UserInfo userInfo = getUserInfo(userId); 3156 if (userInfo == null) { 3157 return; 3158 } 3159 final int userSerial = userInfo.serialNumber; 3160 // Migrate only if build fingerprints mismatch 3161 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3162 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 3163 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE, migrateAppsData); 3164 3165 if (userId != UserHandle.USER_SYSTEM) { 3166 synchronized (mRestrictionsLock) { 3167 applyUserRestrictionsLR(userId); 3168 } 3169 } 3170 } 3171 3172 /** 3173 * Called right before a user is unlocked. This gives us a chance to prepare 3174 * app storage. 3175 */ 3176 public void onBeforeUnlockUser(@UserIdInt int userId) { 3177 UserInfo userInfo = getUserInfo(userId); 3178 if (userInfo == null) { 3179 return; 3180 } 3181 final int userSerial = userInfo.serialNumber; 3182 // Migrate only if build fingerprints mismatch 3183 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3184 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 3185 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE, migrateAppsData); 3186 } 3187 3188 /** 3189 * Examine all users present on given mounted volume, and destroy data 3190 * belonging to users that are no longer valid, or whose user ID has been 3191 * recycled. 3192 */ 3193 void reconcileUsers(String volumeUuid) { 3194 mUserDataPreparer.reconcileUsers(volumeUuid, getUsers(true /* excludeDying */)); 3195 } 3196 3197 /** 3198 * Make a note of the last started time of a user and do some cleanup. 3199 * This is called with ActivityManagerService lock held. 3200 * @param userId the user that was just foregrounded 3201 */ 3202 public void onUserLoggedIn(@UserIdInt int userId) { 3203 UserData userData = getUserDataNoChecks(userId); 3204 if (userData == null || userData.info.partial) { 3205 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 3206 return; 3207 } 3208 3209 final long now = System.currentTimeMillis(); 3210 if (now > EPOCH_PLUS_30_YEARS) { 3211 userData.info.lastLoggedInTime = now; 3212 } 3213 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 3214 scheduleWriteUser(userData); 3215 } 3216 3217 /** 3218 * Returns the next available user id, filling in any holes in the ids. 3219 */ 3220 @VisibleForTesting 3221 int getNextAvailableId() { 3222 int nextId; 3223 synchronized (mUsersLock) { 3224 nextId = scanNextAvailableIdLocked(); 3225 if (nextId >= 0) { 3226 return nextId; 3227 } 3228 // All ids up to MAX_USER_ID were used. Remove all mRemovingUserIds, 3229 // except most recently removed 3230 if (mRemovingUserIds.size() > 0) { 3231 Slog.i(LOG_TAG, "All available IDs are used. Recycling LRU ids."); 3232 mRemovingUserIds.clear(); 3233 for (Integer recentlyRemovedId : mRecentlyRemovedIds) { 3234 mRemovingUserIds.put(recentlyRemovedId, true); 3235 } 3236 nextId = scanNextAvailableIdLocked(); 3237 } 3238 } 3239 if (nextId < 0) { 3240 throw new IllegalStateException("No user id available!"); 3241 } 3242 return nextId; 3243 } 3244 3245 private int scanNextAvailableIdLocked() { 3246 for (int i = MIN_USER_ID; i < MAX_USER_ID; i++) { 3247 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 3248 return i; 3249 } 3250 } 3251 return -1; 3252 } 3253 3254 private String packageToRestrictionsFileName(String packageName) { 3255 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 3256 } 3257 3258 @Override 3259 public void setSeedAccountData(int userId, String accountName, String accountType, 3260 PersistableBundle accountOptions, boolean persist) { 3261 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 3262 synchronized (mPackagesLock) { 3263 final UserData userData; 3264 synchronized (mUsersLock) { 3265 userData = getUserDataLU(userId); 3266 if (userData == null) { 3267 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 3268 return; 3269 } 3270 userData.seedAccountName = accountName; 3271 userData.seedAccountType = accountType; 3272 userData.seedAccountOptions = accountOptions; 3273 userData.persistSeedData = persist; 3274 } 3275 if (persist) { 3276 writeUserLP(userData); 3277 } 3278 } 3279 } 3280 3281 @Override 3282 public String getSeedAccountName() throws RemoteException { 3283 checkManageUsersPermission("Cannot get seed account information"); 3284 synchronized (mUsersLock) { 3285 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3286 return userData.seedAccountName; 3287 } 3288 } 3289 3290 @Override 3291 public String getSeedAccountType() throws RemoteException { 3292 checkManageUsersPermission("Cannot get seed account information"); 3293 synchronized (mUsersLock) { 3294 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3295 return userData.seedAccountType; 3296 } 3297 } 3298 3299 @Override 3300 public PersistableBundle getSeedAccountOptions() throws RemoteException { 3301 checkManageUsersPermission("Cannot get seed account information"); 3302 synchronized (mUsersLock) { 3303 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3304 return userData.seedAccountOptions; 3305 } 3306 } 3307 3308 @Override 3309 public void clearSeedAccountData() throws RemoteException { 3310 checkManageUsersPermission("Cannot clear seed account information"); 3311 synchronized (mPackagesLock) { 3312 UserData userData; 3313 synchronized (mUsersLock) { 3314 userData = getUserDataLU(UserHandle.getCallingUserId()); 3315 if (userData == null) return; 3316 userData.clearSeedAccountData(); 3317 } 3318 writeUserLP(userData); 3319 } 3320 } 3321 3322 @Override 3323 public boolean someUserHasSeedAccount(String accountName, String accountType) 3324 throws RemoteException { 3325 checkManageUsersPermission("Cannot check seed account information"); 3326 synchronized (mUsersLock) { 3327 final int userSize = mUsers.size(); 3328 for (int i = 0; i < userSize; i++) { 3329 final UserData data = mUsers.valueAt(i); 3330 if (data.info.isInitialized()) continue; 3331 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 3332 continue; 3333 } 3334 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 3335 continue; 3336 } 3337 return true; 3338 } 3339 } 3340 return false; 3341 } 3342 3343 @Override 3344 public void onShellCommand(FileDescriptor in, FileDescriptor out, 3345 FileDescriptor err, String[] args, ShellCallback callback, 3346 ResultReceiver resultReceiver) { 3347 (new Shell()).exec(this, in, out, err, args, callback, resultReceiver); 3348 } 3349 3350 int onShellCommand(Shell shell, String cmd) { 3351 if (cmd == null) { 3352 return shell.handleDefaultCommands(cmd); 3353 } 3354 3355 final PrintWriter pw = shell.getOutPrintWriter(); 3356 try { 3357 switch(cmd) { 3358 case "list": 3359 return runList(pw); 3360 } 3361 } catch (RemoteException e) { 3362 pw.println("Remote exception: " + e); 3363 } 3364 return -1; 3365 } 3366 3367 private int runList(PrintWriter pw) throws RemoteException { 3368 final IActivityManager am = ActivityManager.getService(); 3369 final List<UserInfo> users = getUsers(false); 3370 if (users == null) { 3371 pw.println("Error: couldn't get users"); 3372 return 1; 3373 } else { 3374 pw.println("Users:"); 3375 for (int i = 0; i < users.size(); i++) { 3376 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 3377 pw.println("\t" + users.get(i).toString() + running); 3378 } 3379 return 0; 3380 } 3381 } 3382 3383 @Override 3384 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3385 if (!DumpUtils.checkDumpPermission(mContext, LOG_TAG, pw)) return; 3386 3387 long now = System.currentTimeMillis(); 3388 StringBuilder sb = new StringBuilder(); 3389 synchronized (mPackagesLock) { 3390 synchronized (mUsersLock) { 3391 pw.println("Users:"); 3392 for (int i = 0; i < mUsers.size(); i++) { 3393 UserData userData = mUsers.valueAt(i); 3394 if (userData == null) { 3395 continue; 3396 } 3397 UserInfo userInfo = userData.info; 3398 final int userId = userInfo.id; 3399 pw.print(" "); pw.print(userInfo); 3400 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 3401 if (mRemovingUserIds.get(userId)) { 3402 pw.print(" <removing> "); 3403 } 3404 if (userInfo.partial) { 3405 pw.print(" <partial>"); 3406 } 3407 pw.println(); 3408 pw.print(" State: "); 3409 final int state; 3410 synchronized (mUserStates) { 3411 state = mUserStates.get(userId, -1); 3412 } 3413 pw.println(UserState.stateToString(state)); 3414 pw.print(" Created: "); 3415 if (userInfo.creationTime == 0) { 3416 pw.println("<unknown>"); 3417 } else { 3418 sb.setLength(0); 3419 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 3420 sb.append(" ago"); 3421 pw.println(sb); 3422 } 3423 pw.print(" Last logged in: "); 3424 if (userInfo.lastLoggedInTime == 0) { 3425 pw.println("<unknown>"); 3426 } else { 3427 sb.setLength(0); 3428 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 3429 sb.append(" ago"); 3430 pw.println(sb); 3431 } 3432 pw.print(" Last logged in fingerprint: "); 3433 pw.println(userInfo.lastLoggedInFingerprint); 3434 pw.print(" Has profile owner: "); 3435 pw.println(mIsUserManaged.get(userId)); 3436 pw.println(" Restrictions:"); 3437 synchronized (mRestrictionsLock) { 3438 UserRestrictionsUtils.dumpRestrictions( 3439 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 3440 pw.println(" Device policy global restrictions:"); 3441 UserRestrictionsUtils.dumpRestrictions( 3442 pw, " ", mDevicePolicyGlobalUserRestrictions.get(userInfo.id)); 3443 pw.println(" Device policy local restrictions:"); 3444 UserRestrictionsUtils.dumpRestrictions( 3445 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 3446 pw.println(" Effective restrictions:"); 3447 UserRestrictionsUtils.dumpRestrictions( 3448 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 3449 } 3450 3451 if (userData.account != null) { 3452 pw.print(" Account name: " + userData.account); 3453 pw.println(); 3454 } 3455 3456 if (userData.seedAccountName != null) { 3457 pw.print(" Seed account name: " + userData.seedAccountName); 3458 pw.println(); 3459 if (userData.seedAccountType != null) { 3460 pw.print(" account type: " + userData.seedAccountType); 3461 pw.println(); 3462 } 3463 if (userData.seedAccountOptions != null) { 3464 pw.print(" account options exist"); 3465 pw.println(); 3466 } 3467 } 3468 } 3469 } 3470 pw.println(); 3471 pw.println(" Device owner id:" + mDeviceOwnerUserId); 3472 pw.println(); 3473 pw.println(" Guest restrictions:"); 3474 synchronized (mGuestRestrictions) { 3475 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 3476 } 3477 synchronized (mUsersLock) { 3478 pw.println(); 3479 pw.println(" Device managed: " + mIsDeviceManaged); 3480 if (mRemovingUserIds.size() > 0) { 3481 pw.println(); 3482 pw.println(" Recently removed userIds: " + mRecentlyRemovedIds); 3483 } 3484 } 3485 synchronized (mUserStates) { 3486 pw.println(" Started users state: " + mUserStates); 3487 } 3488 // Dump some capabilities 3489 pw.println(); 3490 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 3491 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 3492 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 3493 com.android.internal.R.bool.config_guestUserEphemeral)); 3494 } 3495 } 3496 3497 final class MainHandler extends Handler { 3498 3499 @Override 3500 public void handleMessage(Message msg) { 3501 switch (msg.what) { 3502 case WRITE_USER_MSG: 3503 removeMessages(WRITE_USER_MSG, msg.obj); 3504 synchronized (mPackagesLock) { 3505 int userId = ((UserData) msg.obj).info.id; 3506 UserData userData = getUserDataNoChecks(userId); 3507 if (userData != null) { 3508 writeUserLP(userData); 3509 } 3510 } 3511 } 3512 } 3513 } 3514 3515 /** 3516 * @param userId 3517 * @return whether the user has been initialized yet 3518 */ 3519 boolean isInitialized(int userId) { 3520 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3521 } 3522 3523 private class LocalService extends UserManagerInternal { 3524 @Override 3525 public void setDevicePolicyUserRestrictions(int userId, @Nullable Bundle restrictions, 3526 boolean isDeviceOwner, int cameraRestrictionScope) { 3527 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, restrictions, 3528 isDeviceOwner, cameraRestrictionScope); 3529 } 3530 3531 @Override 3532 public Bundle getBaseUserRestrictions(int userId) { 3533 synchronized (mRestrictionsLock) { 3534 return mBaseUserRestrictions.get(userId); 3535 } 3536 } 3537 3538 @Override 3539 public void setBaseUserRestrictionsByDpmsForMigration( 3540 int userId, Bundle baseRestrictions) { 3541 synchronized (mRestrictionsLock) { 3542 if (updateRestrictionsIfNeededLR( 3543 userId, new Bundle(baseRestrictions), mBaseUserRestrictions)) { 3544 invalidateEffectiveUserRestrictionsLR(userId); 3545 } 3546 } 3547 3548 final UserData userData = getUserDataNoChecks(userId); 3549 synchronized (mPackagesLock) { 3550 if (userData != null) { 3551 writeUserLP(userData); 3552 } else { 3553 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3554 } 3555 } 3556 } 3557 3558 @Override 3559 public boolean getUserRestriction(int userId, String key) { 3560 return getUserRestrictions(userId).getBoolean(key); 3561 } 3562 3563 @Override 3564 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3565 synchronized (mUserRestrictionsListeners) { 3566 mUserRestrictionsListeners.add(listener); 3567 } 3568 } 3569 3570 @Override 3571 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3572 synchronized (mUserRestrictionsListeners) { 3573 mUserRestrictionsListeners.remove(listener); 3574 } 3575 } 3576 3577 @Override 3578 public void setDeviceManaged(boolean isManaged) { 3579 synchronized (mUsersLock) { 3580 mIsDeviceManaged = isManaged; 3581 } 3582 } 3583 3584 @Override 3585 public void setUserManaged(int userId, boolean isManaged) { 3586 synchronized (mUsersLock) { 3587 mIsUserManaged.put(userId, isManaged); 3588 } 3589 } 3590 3591 @Override 3592 public void setUserIcon(int userId, Bitmap bitmap) { 3593 long ident = Binder.clearCallingIdentity(); 3594 try { 3595 synchronized (mPackagesLock) { 3596 UserData userData = getUserDataNoChecks(userId); 3597 if (userData == null || userData.info.partial) { 3598 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3599 return; 3600 } 3601 writeBitmapLP(userData.info, bitmap); 3602 writeUserLP(userData); 3603 } 3604 sendUserInfoChangedBroadcast(userId); 3605 } finally { 3606 Binder.restoreCallingIdentity(ident); 3607 } 3608 } 3609 3610 @Override 3611 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3612 synchronized (mUsersLock) { 3613 mForceEphemeralUsers = forceEphemeralUsers; 3614 } 3615 } 3616 3617 @Override 3618 public void removeAllUsers() { 3619 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3620 // Remove the non-system users straight away. 3621 removeNonSystemUsers(); 3622 } else { 3623 // Switch to the system user first and then remove the other users. 3624 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3625 @Override 3626 public void onReceive(Context context, Intent intent) { 3627 int userId = 3628 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3629 if (userId != UserHandle.USER_SYSTEM) { 3630 return; 3631 } 3632 mContext.unregisterReceiver(this); 3633 removeNonSystemUsers(); 3634 } 3635 }; 3636 IntentFilter userSwitchedFilter = new IntentFilter(); 3637 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3638 mContext.registerReceiver( 3639 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3640 3641 // Switch to the system user. 3642 ActivityManager am = 3643 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3644 am.switchUser(UserHandle.USER_SYSTEM); 3645 } 3646 } 3647 3648 @Override 3649 public void onEphemeralUserStop(int userId) { 3650 synchronized (mUsersLock) { 3651 UserInfo userInfo = getUserInfoLU(userId); 3652 if (userInfo != null && userInfo.isEphemeral()) { 3653 // Do not allow switching back to the ephemeral user again as the user is going 3654 // to be deleted. 3655 userInfo.flags |= UserInfo.FLAG_DISABLED; 3656 if (userInfo.isGuest()) { 3657 // Indicate that the guest will be deleted after it stops. 3658 userInfo.guestToRemove = true; 3659 } 3660 } 3661 } 3662 } 3663 3664 @Override 3665 public UserInfo createUserEvenWhenDisallowed(String name, int flags) { 3666 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL, null); 3667 // Keep this in sync with UserManager.createUser 3668 if (user != null && !user.isAdmin() && !user.isDemo()) { 3669 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3670 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3671 } 3672 return user; 3673 } 3674 3675 @Override 3676 public boolean removeUserEvenWhenDisallowed(int userId) { 3677 return removeUserUnchecked(userId); 3678 } 3679 3680 @Override 3681 public boolean isUserRunning(int userId) { 3682 synchronized (mUserStates) { 3683 return mUserStates.get(userId, -1) >= 0; 3684 } 3685 } 3686 3687 @Override 3688 public void setUserState(int userId, int userState) { 3689 synchronized (mUserStates) { 3690 mUserStates.put(userId, userState); 3691 } 3692 } 3693 3694 @Override 3695 public void removeUserState(int userId) { 3696 synchronized (mUserStates) { 3697 mUserStates.delete(userId); 3698 } 3699 } 3700 3701 @Override 3702 public int[] getUserIds() { 3703 return UserManagerService.this.getUserIds(); 3704 } 3705 3706 @Override 3707 public boolean isUserUnlockingOrUnlocked(int userId) { 3708 synchronized (mUserStates) { 3709 int state = mUserStates.get(userId, -1); 3710 return (state == UserState.STATE_RUNNING_UNLOCKING) 3711 || (state == UserState.STATE_RUNNING_UNLOCKED); 3712 } 3713 } 3714 3715 @Override 3716 public boolean isUserUnlocked(int userId) { 3717 synchronized (mUserStates) { 3718 int state = mUserStates.get(userId, -1); 3719 return state == UserState.STATE_RUNNING_UNLOCKED; 3720 } 3721 } 3722 } 3723 3724 /* Remove all the users except of the system one. */ 3725 private void removeNonSystemUsers() { 3726 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3727 synchronized (mUsersLock) { 3728 final int userSize = mUsers.size(); 3729 for (int i = 0; i < userSize; i++) { 3730 UserInfo ui = mUsers.valueAt(i).info; 3731 if (ui.id != UserHandle.USER_SYSTEM) { 3732 usersToRemove.add(ui); 3733 } 3734 } 3735 } 3736 for (UserInfo ui: usersToRemove) { 3737 removeUser(ui.id); 3738 } 3739 } 3740 3741 private class Shell extends ShellCommand { 3742 @Override 3743 public int onCommand(String cmd) { 3744 return onShellCommand(this, cmd); 3745 } 3746 3747 @Override 3748 public void onHelp() { 3749 final PrintWriter pw = getOutPrintWriter(); 3750 pw.println("User manager (user) commands:"); 3751 pw.println(" help"); 3752 pw.println(" Print this help text."); 3753 pw.println(""); 3754 pw.println(" list"); 3755 pw.println(" Prints all users on the system."); 3756 } 3757 } 3758 3759 private static void debug(String message) { 3760 Log.d(LOG_TAG, message + 3761 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3762 } 3763 3764 @VisibleForTesting 3765 static int getMaxManagedProfiles() { 3766 // Allow overriding max managed profiles on debuggable builds for testing 3767 // of multiple profiles. 3768 if (!Build.IS_DEBUGGABLE) { 3769 return MAX_MANAGED_PROFILES; 3770 } else { 3771 return SystemProperties.getInt("persist.sys.max_profiles", 3772 MAX_MANAGED_PROFILES); 3773 } 3774 } 3775 3776 @VisibleForTesting 3777 int getFreeProfileBadgeLU(int parentUserId) { 3778 int maxManagedProfiles = getMaxManagedProfiles(); 3779 boolean[] usedBadges = new boolean[maxManagedProfiles]; 3780 final int userSize = mUsers.size(); 3781 for (int i = 0; i < userSize; i++) { 3782 UserInfo ui = mUsers.valueAt(i).info; 3783 // Check which badge indexes are already used by this profile group. 3784 if (ui.isManagedProfile() 3785 && ui.profileGroupId == parentUserId 3786 && !mRemovingUserIds.get(ui.id) 3787 && ui.profileBadge < maxManagedProfiles) { 3788 usedBadges[ui.profileBadge] = true; 3789 } 3790 } 3791 for (int i = 0; i < maxManagedProfiles; i++) { 3792 if (!usedBadges[i]) { 3793 return i; 3794 } 3795 } 3796 return 0; 3797 } 3798 3799 /** 3800 * Checks if the given user has a managed profile associated with it. 3801 * @param userId The parent user 3802 * @return 3803 */ 3804 boolean hasManagedProfile(int userId) { 3805 synchronized (mUsersLock) { 3806 UserInfo userInfo = getUserInfoLU(userId); 3807 final int userSize = mUsers.size(); 3808 for (int i = 0; i < userSize; i++) { 3809 UserInfo profile = mUsers.valueAt(i).info; 3810 if (userId != profile.id && isProfileOf(userInfo, profile)) { 3811 return true; 3812 } 3813 } 3814 return false; 3815 } 3816 } 3817} 3818