UserManagerService.java revision acc50461bb7cec5012bb9c58acebeae9ad729232
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.IActivityManager; 31import android.app.IStopUserCallback; 32import android.app.KeyguardManager; 33import android.app.PendingIntent; 34import android.content.BroadcastReceiver; 35import android.content.Context; 36import android.content.Intent; 37import android.content.IntentFilter; 38import android.content.IntentSender; 39import android.content.pm.PackageManager; 40import android.content.pm.PackageManager.NameNotFoundException; 41import android.content.pm.ShortcutServiceInternal; 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.IProgressListener; 54import android.os.IUserManager; 55import android.os.Message; 56import android.os.ParcelFileDescriptor; 57import android.os.Parcelable; 58import android.os.PersistableBundle; 59import android.os.Process; 60import android.os.RemoteException; 61import android.os.ResultReceiver; 62import android.os.SELinux; 63import android.os.ServiceManager; 64import android.os.ShellCallback; 65import android.os.ShellCommand; 66import android.os.SystemClock; 67import android.os.SystemProperties; 68import android.os.UserHandle; 69import android.os.UserManager; 70import android.os.UserManager.EnforcingUser; 71import android.os.UserManagerInternal; 72import android.os.UserManagerInternal.UserRestrictionsListener; 73import android.os.storage.StorageManager; 74import android.security.GateKeeper; 75import android.service.gatekeeper.IGateKeeperService; 76import android.util.AtomicFile; 77import android.util.IntArray; 78import android.util.Log; 79import android.util.Slog; 80import android.util.SparseArray; 81import android.util.SparseBooleanArray; 82import android.util.SparseIntArray; 83import android.util.SparseLongArray; 84import android.util.TimeUtils; 85import android.util.Xml; 86 87import com.android.internal.annotations.GuardedBy; 88import com.android.internal.annotations.VisibleForTesting; 89import com.android.internal.app.IAppOpsService; 90import com.android.internal.logging.MetricsLogger; 91import com.android.internal.os.BackgroundThread; 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.IOException; 117import java.io.InputStream; 118import java.io.OutputStream; 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 "LAr" should be called within the {@link #mAppRestrictionsLock} lock. 132 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 133 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 134 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 135 * </ul> 136 */ 137public class UserManagerService extends IUserManager.Stub { 138 139 private static final String LOG_TAG = "UserManagerService"; 140 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 141 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 142 // Can be used for manual testing of id recycling 143 private static final boolean RELEASE_DELETED_USER_ID = false; // DO NOT SUBMIT WITH TRUE 144 145 private static final String TAG_NAME = "name"; 146 private static final String TAG_ACCOUNT = "account"; 147 private static final String ATTR_FLAGS = "flags"; 148 private static final String ATTR_ICON_PATH = "icon"; 149 private static final String ATTR_ID = "id"; 150 private static final String ATTR_CREATION_TIME = "created"; 151 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 152 private static final String ATTR_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint"; 153 private static final String ATTR_SERIAL_NO = "serialNumber"; 154 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 155 private static final String ATTR_PARTIAL = "partial"; 156 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 157 private static final String ATTR_USER_VERSION = "version"; 158 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 159 private static final String ATTR_PROFILE_BADGE = "profileBadge"; 160 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 161 private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; 162 private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; 163 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 164 private static final String TAG_USERS = "users"; 165 private static final String TAG_USER = "user"; 166 private static final String TAG_RESTRICTIONS = "restrictions"; 167 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 168 private static final String TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS = 169 "device_policy_global_restrictions"; 170 /** Legacy name for device owner id tag. */ 171 private static final String TAG_GLOBAL_RESTRICTION_OWNER_ID = "globalRestrictionOwnerUserId"; 172 private static final String TAG_DEVICE_OWNER_USER_ID = "deviceOwnerUserId"; 173 private static final String TAG_ENTRY = "entry"; 174 private static final String TAG_VALUE = "value"; 175 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 176 private static final String ATTR_KEY = "key"; 177 private static final String ATTR_VALUE_TYPE = "type"; 178 private static final String ATTR_MULTIPLE = "m"; 179 180 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 181 private static final String ATTR_TYPE_STRING = "s"; 182 private static final String ATTR_TYPE_BOOLEAN = "b"; 183 private static final String ATTR_TYPE_INTEGER = "i"; 184 private static final String ATTR_TYPE_BUNDLE = "B"; 185 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 186 187 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 188 private static final String USER_LIST_FILENAME = "userlist.xml"; 189 private static final String USER_PHOTO_FILENAME = "photo.png"; 190 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 191 192 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 193 private static final String XML_SUFFIX = ".xml"; 194 195 private static final int ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION = 196 UserInfo.FLAG_MANAGED_PROFILE 197 | UserInfo.FLAG_EPHEMERAL 198 | UserInfo.FLAG_RESTRICTED 199 | UserInfo.FLAG_GUEST 200 | UserInfo.FLAG_DEMO; 201 202 @VisibleForTesting 203 static final int MIN_USER_ID = 10; 204 // We need to keep process uid within Integer.MAX_VALUE. 205 @VisibleForTesting 206 static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 207 208 // Max size of the queue of recently removed users 209 @VisibleForTesting 210 static final int MAX_RECENTLY_REMOVED_IDS_SIZE = 100; 211 212 private static final int USER_VERSION = 7; 213 214 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 215 216 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 217 // without first making sure that the rest of the framework is prepared for it. 218 @VisibleForTesting 219 static final int MAX_MANAGED_PROFILES = 1; 220 221 static final int WRITE_USER_MSG = 1; 222 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 223 224 // Tron counters 225 private static final String TRON_GUEST_CREATED = "users_guest_created"; 226 private static final String TRON_USER_CREATED = "users_user_created"; 227 private static final String TRON_DEMO_CREATED = "users_demo_created"; 228 229 private final Context mContext; 230 private final PackageManagerService mPm; 231 private final Object mPackagesLock; 232 private final UserDataPreparer mUserDataPreparer; 233 // Short-term lock for internal state, when interaction/sync with PM is not required 234 private final Object mUsersLock = LockGuard.installNewLock(LockGuard.INDEX_USER); 235 private final Object mRestrictionsLock = new Object(); 236 // Used for serializing access to app restriction files 237 private final Object mAppRestrictionsLock = new Object(); 238 239 private final Handler mHandler; 240 241 private final File mUsersDir; 242 private final File mUserListFile; 243 244 private static final IBinder mUserRestriconToken = new Binder(); 245 246 /** 247 * Internal non-parcelable wrapper for UserInfo that is not exposed to other system apps. 248 */ 249 @VisibleForTesting 250 static class UserData { 251 // Basic user information and properties 252 UserInfo info; 253 // Account name used when there is a strong association between a user and an account 254 String account; 255 // Account information for seeding into a newly created user. This could also be 256 // used for login validation for an existing user, for updating their credentials. 257 // In the latter case, data may not need to be persisted as it is only valid for the 258 // current login session. 259 String seedAccountName; 260 String seedAccountType; 261 PersistableBundle seedAccountOptions; 262 // Whether to perist the seed account information to be available after a boot 263 boolean persistSeedData; 264 265 /** Elapsed realtime since boot when the user started. */ 266 long startRealtime; 267 268 /** Elapsed realtime since boot when the user was unlocked. */ 269 long unlockRealtime; 270 271 void clearSeedAccountData() { 272 seedAccountName = null; 273 seedAccountType = null; 274 seedAccountOptions = null; 275 persistSeedData = false; 276 } 277 } 278 279 @GuardedBy("mUsersLock") 280 private final SparseArray<UserData> mUsers = new SparseArray<>(); 281 282 /** 283 * User restrictions set via UserManager. This doesn't include restrictions set by 284 * device owner / profile owners. Only non-empty restriction bundles are stored. 285 * 286 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 287 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 288 * maybe shared between {@link #mBaseUserRestrictions} and 289 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 290 * (Otherwise we won't be able to detect what restrictions have changed in 291 * {@link #updateUserRestrictionsInternalLR}. 292 */ 293 @GuardedBy("mRestrictionsLock") 294 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 295 296 /** 297 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 298 * with device / profile owner restrictions. We'll initialize it lazily; use 299 * {@link #getEffectiveUserRestrictions} to access it. 300 * 301 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 302 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 303 * maybe shared between {@link #mBaseUserRestrictions} and 304 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 305 * (Otherwise we won't be able to detect what restrictions have changed in 306 * {@link #updateUserRestrictionsInternalLR}. 307 */ 308 @GuardedBy("mRestrictionsLock") 309 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 310 311 /** 312 * User restrictions that have already been applied in 313 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 314 * that have changed since the last 315 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 316 */ 317 @GuardedBy("mRestrictionsLock") 318 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 319 320 /** 321 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 322 * that should be applied to all users, including guests. Only non-empty restriction bundles are 323 * stored. 324 */ 325 @GuardedBy("mRestrictionsLock") 326 private final SparseArray<Bundle> mDevicePolicyGlobalUserRestrictions = new SparseArray<>(); 327 328 /** 329 * Id of the user that set global restrictions. 330 */ 331 @GuardedBy("mRestrictionsLock") 332 private int mDeviceOwnerUserId = UserHandle.USER_NULL; 333 334 /** 335 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 336 * for each user. Only non-empty restriction bundles are stored. 337 */ 338 @GuardedBy("mRestrictionsLock") 339 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 340 341 @GuardedBy("mGuestRestrictions") 342 private final Bundle mGuestRestrictions = new Bundle(); 343 344 /** 345 * Set of user IDs being actively removed. Removed IDs linger in this set 346 * for several seconds to work around a VFS caching issue. 347 * Use {@link #addRemovingUserIdLocked(int)} to add elements to this array 348 */ 349 @GuardedBy("mUsersLock") 350 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 351 352 /** 353 * Queue of recently removed userIds. Used for recycling of userIds 354 */ 355 @GuardedBy("mUsersLock") 356 private final LinkedList<Integer> mRecentlyRemovedIds = new LinkedList<>(); 357 358 @GuardedBy("mUsersLock") 359 private int[] mUserIds; 360 @GuardedBy("mPackagesLock") 361 private int mNextSerialNumber; 362 private int mUserVersion = 0; 363 364 private IAppOpsService mAppOpsService; 365 366 private final LocalService mLocalService; 367 368 @GuardedBy("mUsersLock") 369 private boolean mIsDeviceManaged; 370 371 @GuardedBy("mUsersLock") 372 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 373 374 @GuardedBy("mUserRestrictionsListeners") 375 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 376 new ArrayList<>(); 377 378 private final LockPatternUtils mLockPatternUtils; 379 380 private final String ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK = 381 "com.android.server.pm.DISABLE_QUIET_MODE_AFTER_UNLOCK"; 382 383 private final BroadcastReceiver mDisableQuietModeCallback = new BroadcastReceiver() { 384 @Override 385 public void onReceive(Context context, Intent intent) { 386 if (!ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK.equals(intent.getAction())) { 387 return; 388 } 389 final IntentSender target = intent.getParcelableExtra(Intent.EXTRA_INTENT); 390 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_ID, UserHandle.USER_NULL); 391 // Call setQuietModeEnabled on bg thread to avoid ANR 392 BackgroundThread.getHandler() 393 .post(() -> setQuietModeEnabled(userHandle, false, target)); 394 } 395 }; 396 397 /** 398 * Start an {@link IntentSender} when user is unlocked after disabling quiet mode. 399 * 400 * @see {@link #requestQuietModeEnabled(String, boolean, int, IntentSender)} 401 */ 402 private class DisableQuietModeUserUnlockedCallback extends IProgressListener.Stub { 403 private final IntentSender mTarget; 404 405 public DisableQuietModeUserUnlockedCallback(IntentSender target) { 406 Preconditions.checkNotNull(target); 407 mTarget = target; 408 } 409 410 @Override 411 public void onStarted(int id, Bundle extras) {} 412 413 @Override 414 public void onProgress(int id, int progress, Bundle extras) {} 415 416 @Override 417 public void onFinished(int id, Bundle extras) { 418 try { 419 mContext.startIntentSender(mTarget, null, 0, 0, 0); 420 } catch (IntentSender.SendIntentException e) { 421 Slog.e(LOG_TAG, "Failed to start the target in the callback", e); 422 } 423 } 424 } 425 426 /** 427 * Whether all users should be created ephemeral. 428 */ 429 @GuardedBy("mUsersLock") 430 private boolean mForceEphemeralUsers; 431 432 @GuardedBy("mUserStates") 433 private final SparseIntArray mUserStates = new SparseIntArray(); 434 435 private static UserManagerService sInstance; 436 437 public static UserManagerService getInstance() { 438 synchronized (UserManagerService.class) { 439 return sInstance; 440 } 441 } 442 443 public static class LifeCycle extends SystemService { 444 445 private UserManagerService mUms; 446 447 /** 448 * @param context 449 */ 450 public LifeCycle(Context context) { 451 super(context); 452 } 453 454 @Override 455 public void onStart() { 456 mUms = UserManagerService.getInstance(); 457 publishBinderService(Context.USER_SERVICE, mUms); 458 } 459 460 @Override 461 public void onBootPhase(int phase) { 462 if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) { 463 mUms.cleanupPartialUsers(); 464 } 465 } 466 467 @Override 468 public void onStartUser(int userHandle) { 469 synchronized (mUms.mUsersLock) { 470 final UserData user = mUms.getUserDataLU(userHandle); 471 if (user != null) { 472 user.startRealtime = SystemClock.elapsedRealtime(); 473 } 474 } 475 } 476 477 @Override 478 public void onUnlockUser(int userHandle) { 479 synchronized (mUms.mUsersLock) { 480 final UserData user = mUms.getUserDataLU(userHandle); 481 if (user != null) { 482 user.unlockRealtime = SystemClock.elapsedRealtime(); 483 } 484 } 485 } 486 487 @Override 488 public void onStopUser(int userHandle) { 489 synchronized (mUms.mUsersLock) { 490 final UserData user = mUms.getUserDataLU(userHandle); 491 if (user != null) { 492 user.startRealtime = 0; 493 user.unlockRealtime = 0; 494 } 495 } 496 } 497 } 498 499 // TODO b/28848102 Add support for test dependencies injection 500 @VisibleForTesting 501 UserManagerService(Context context) { 502 this(context, null, null, new Object(), context.getCacheDir()); 503 } 504 505 /** 506 * Called by package manager to create the service. This is closely 507 * associated with the package manager, and the given lock is the 508 * package manager's own lock. 509 */ 510 UserManagerService(Context context, PackageManagerService pm, UserDataPreparer userDataPreparer, 511 Object packagesLock) { 512 this(context, pm, userDataPreparer, packagesLock, Environment.getDataDirectory()); 513 } 514 515 private UserManagerService(Context context, PackageManagerService pm, 516 UserDataPreparer userDataPreparer, Object packagesLock, File dataDir) { 517 mContext = context; 518 mPm = pm; 519 mPackagesLock = packagesLock; 520 mHandler = new MainHandler(); 521 mUserDataPreparer = userDataPreparer; 522 synchronized (mPackagesLock) { 523 mUsersDir = new File(dataDir, USER_INFO_DIR); 524 mUsersDir.mkdirs(); 525 // Make zeroth user directory, for services to migrate their files to that location 526 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 527 userZeroDir.mkdirs(); 528 FileUtils.setPermissions(mUsersDir.toString(), 529 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 530 -1, -1); 531 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 532 initDefaultGuestRestrictions(); 533 readUserListLP(); 534 sInstance = this; 535 } 536 mLocalService = new LocalService(); 537 LocalServices.addService(UserManagerInternal.class, mLocalService); 538 mLockPatternUtils = new LockPatternUtils(mContext); 539 mUserStates.put(UserHandle.USER_SYSTEM, UserState.STATE_BOOTING); 540 } 541 542 void systemReady() { 543 mAppOpsService = IAppOpsService.Stub.asInterface( 544 ServiceManager.getService(Context.APP_OPS_SERVICE)); 545 546 synchronized (mRestrictionsLock) { 547 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 548 } 549 550 UserInfo currentGuestUser = findCurrentGuestUser(); 551 if (currentGuestUser != null && !hasUserRestriction( 552 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 553 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 554 // to it, in case this guest was created in a previous version where this 555 // user restriction was not a default guest restriction. 556 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 557 } 558 559 mContext.registerReceiver(mDisableQuietModeCallback, 560 new IntentFilter(ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK), 561 null, mHandler); 562 } 563 564 void cleanupPartialUsers() { 565 // Prune out any partially created, partially removed and ephemeral users. 566 ArrayList<UserInfo> partials = new ArrayList<>(); 567 synchronized (mUsersLock) { 568 final int userSize = mUsers.size(); 569 for (int i = 0; i < userSize; i++) { 570 UserInfo ui = mUsers.valueAt(i).info; 571 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 572 partials.add(ui); 573 addRemovingUserIdLocked(ui.id); 574 ui.partial = true; 575 } 576 } 577 } 578 final int partialsSize = partials.size(); 579 for (int i = 0; i < partialsSize; i++) { 580 UserInfo ui = partials.get(i); 581 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 582 + " (name=" + ui.name + ")"); 583 removeUserState(ui.id); 584 } 585 } 586 587 @Override 588 public String getUserAccount(int userId) { 589 checkManageUserAndAcrossUsersFullPermission("get user account"); 590 synchronized (mUsersLock) { 591 return mUsers.get(userId).account; 592 } 593 } 594 595 @Override 596 public void setUserAccount(int userId, String accountName) { 597 checkManageUserAndAcrossUsersFullPermission("set user account"); 598 UserData userToUpdate = null; 599 synchronized (mPackagesLock) { 600 synchronized (mUsersLock) { 601 final UserData userData = mUsers.get(userId); 602 if (userData == null) { 603 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 604 return; 605 } 606 String currentAccount = userData.account; 607 if (!Objects.equal(currentAccount, accountName)) { 608 userData.account = accountName; 609 userToUpdate = userData; 610 } 611 } 612 613 if (userToUpdate != null) { 614 writeUserLP(userToUpdate); 615 } 616 } 617 } 618 619 @Override 620 public UserInfo getPrimaryUser() { 621 checkManageUsersPermission("query users"); 622 synchronized (mUsersLock) { 623 final int userSize = mUsers.size(); 624 for (int i = 0; i < userSize; i++) { 625 UserInfo ui = mUsers.valueAt(i).info; 626 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 627 return ui; 628 } 629 } 630 } 631 return null; 632 } 633 634 @Override 635 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 636 checkManageOrCreateUsersPermission("query users"); 637 synchronized (mUsersLock) { 638 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 639 final int userSize = mUsers.size(); 640 for (int i = 0; i < userSize; i++) { 641 UserInfo ui = mUsers.valueAt(i).info; 642 if (ui.partial) { 643 continue; 644 } 645 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 646 users.add(userWithName(ui)); 647 } 648 } 649 return users; 650 } 651 } 652 653 @Override 654 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 655 boolean returnFullInfo = true; 656 if (userId != UserHandle.getCallingUserId()) { 657 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 658 } else { 659 returnFullInfo = hasManageUsersPermission(); 660 } 661 final long ident = Binder.clearCallingIdentity(); 662 try { 663 synchronized (mUsersLock) { 664 return getProfilesLU(userId, enabledOnly, returnFullInfo); 665 } 666 } finally { 667 Binder.restoreCallingIdentity(ident); 668 } 669 } 670 671 @Override 672 public int[] getProfileIds(int userId, boolean enabledOnly) { 673 if (userId != UserHandle.getCallingUserId()) { 674 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 675 } 676 final long ident = Binder.clearCallingIdentity(); 677 try { 678 synchronized (mUsersLock) { 679 return getProfileIdsLU(userId, enabledOnly).toArray(); 680 } 681 } finally { 682 Binder.restoreCallingIdentity(ident); 683 } 684 } 685 686 /** Assume permissions already checked and caller's identity cleared */ 687 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 688 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 689 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 690 for (int i = 0; i < profileIds.size(); i++) { 691 int profileId = profileIds.get(i); 692 UserInfo userInfo = mUsers.get(profileId).info; 693 // If full info is not required - clear PII data to prevent 3P apps from reading it 694 if (!fullInfo) { 695 userInfo = new UserInfo(userInfo); 696 userInfo.name = null; 697 userInfo.iconPath = null; 698 } else { 699 userInfo = userWithName(userInfo); 700 } 701 users.add(userInfo); 702 } 703 return users; 704 } 705 706 /** 707 * Assume permissions already checked and caller's identity cleared 708 */ 709 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 710 UserInfo user = getUserInfoLU(userId); 711 IntArray result = new IntArray(mUsers.size()); 712 if (user == null) { 713 // Probably a dying user 714 return result; 715 } 716 final int userSize = mUsers.size(); 717 for (int i = 0; i < userSize; i++) { 718 UserInfo profile = mUsers.valueAt(i).info; 719 if (!isProfileOf(user, profile)) { 720 continue; 721 } 722 if (enabledOnly && !profile.isEnabled()) { 723 continue; 724 } 725 if (mRemovingUserIds.get(profile.id)) { 726 continue; 727 } 728 if (profile.partial) { 729 continue; 730 } 731 result.add(profile.id); 732 } 733 return result; 734 } 735 736 @Override 737 public int getCredentialOwnerProfile(int userHandle) { 738 checkManageUsersPermission("get the credential owner"); 739 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 740 synchronized (mUsersLock) { 741 UserInfo profileParent = getProfileParentLU(userHandle); 742 if (profileParent != null) { 743 return profileParent.id; 744 } 745 } 746 } 747 748 return userHandle; 749 } 750 751 @Override 752 public boolean isSameProfileGroup(int userId, int otherUserId) { 753 if (userId == otherUserId) return true; 754 checkManageUsersPermission("check if in the same profile group"); 755 return isSameProfileGroupNoChecks(userId, otherUserId); 756 } 757 758 private boolean isSameProfileGroupNoChecks(int userId, int otherUserId) { 759 synchronized (mUsersLock) { 760 UserInfo userInfo = getUserInfoLU(userId); 761 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 762 return false; 763 } 764 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 765 if (otherUserInfo == null 766 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 767 return false; 768 } 769 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 770 } 771 } 772 773 @Override 774 public UserInfo getProfileParent(int userHandle) { 775 checkManageUsersPermission("get the profile parent"); 776 synchronized (mUsersLock) { 777 return getProfileParentLU(userHandle); 778 } 779 } 780 781 @Override 782 public int getProfileParentId(int userHandle) { 783 checkManageUsersPermission("get the profile parent"); 784 synchronized (mUsersLock) { 785 UserInfo profileParent = getProfileParentLU(userHandle); 786 if (profileParent == null) { 787 return userHandle; 788 } 789 790 return profileParent.id; 791 } 792 } 793 794 private UserInfo getProfileParentLU(int userHandle) { 795 UserInfo profile = getUserInfoLU(userHandle); 796 if (profile == null) { 797 return null; 798 } 799 int parentUserId = profile.profileGroupId; 800 if (parentUserId == userHandle || parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 801 return null; 802 } else { 803 return getUserInfoLU(parentUserId); 804 } 805 } 806 807 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 808 return user.id == profile.id || 809 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 810 && user.profileGroupId == profile.profileGroupId); 811 } 812 813 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 814 UserHandle parentHandle, boolean inQuietMode) { 815 Intent intent = new Intent(); 816 if (inQuietMode) { 817 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 818 } else { 819 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 820 } 821 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 822 intent.putExtra(Intent.EXTRA_USER, profileHandle); 823 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 824 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 825 mContext.sendBroadcastAsUser(intent, parentHandle); 826 } 827 828 @Override 829 public boolean requestQuietModeEnabled(@NonNull String callingPackage, boolean enableQuietMode, 830 int userHandle, @Nullable IntentSender target) { 831 Preconditions.checkNotNull(callingPackage); 832 833 if (enableQuietMode && target != null) { 834 throw new IllegalArgumentException( 835 "target should only be specified when we are disabling quiet mode."); 836 } 837 838 ensureCanModifyQuietMode(callingPackage, Binder.getCallingUid(), target != null); 839 final long identity = Binder.clearCallingIdentity(); 840 try { 841 if (enableQuietMode) { 842 setQuietModeEnabled(userHandle, true /* enableQuietMode */, target); 843 return true; 844 } else { 845 boolean needToShowConfirmCredential = 846 mLockPatternUtils.isSecure(userHandle) 847 && !StorageManager.isUserKeyUnlocked(userHandle); 848 if (needToShowConfirmCredential) { 849 showConfirmCredentialToDisableQuietMode(userHandle, target); 850 return false; 851 } else { 852 setQuietModeEnabled(userHandle, false /* enableQuietMode */, target); 853 return true; 854 } 855 } 856 } finally { 857 Binder.restoreCallingIdentity(identity); 858 } 859 } 860 861 /** 862 * The caller can modify quiet mode if it meets one of these conditions: 863 * <ul> 864 * <li>Has system UID or root UID</li> 865 * <li>Has {@link Manifest.permission#MODIFY_QUIET_MODE}</li> 866 * <li>Has {@link Manifest.permission#MANAGE_USERS}</li> 867 * </ul> 868 * <p> 869 * If caller wants to start an intent after disabling the quiet mode, it must has 870 * {@link Manifest.permission#MANAGE_USERS}. 871 */ 872 private void ensureCanModifyQuietMode(String callingPackage, int callingUid, 873 boolean startIntent) { 874 if (hasManageUsersPermission()) { 875 return; 876 } 877 if (startIntent) { 878 throw new SecurityException("MANAGE_USERS permission is required to start intent " 879 + "after disabling quiet mode."); 880 } 881 final boolean hasModifyQuietModePermission = ActivityManager.checkComponentPermission( 882 Manifest.permission.MODIFY_QUIET_MODE, 883 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 884 if (hasModifyQuietModePermission) { 885 return; 886 } 887 888 verifyCallingPackage(callingPackage, callingUid); 889 final ShortcutServiceInternal shortcutInternal = 890 LocalServices.getService(ShortcutServiceInternal.class); 891 if (shortcutInternal != null) { 892 boolean isForegroundLauncher = 893 shortcutInternal.isForegroundDefaultLauncher(callingPackage, callingUid); 894 if (isForegroundLauncher) { 895 return; 896 } 897 } 898 throw new SecurityException("Can't modify quiet mode, caller is neither foreground " 899 + "default launcher nor has MANAGE_USERS/MODIFY_QUIET_MODE permission"); 900 } 901 902 private void setQuietModeEnabled( 903 int userHandle, boolean enableQuietMode, IntentSender target) { 904 final UserInfo profile, parent; 905 final UserData profileUserData; 906 synchronized (mUsersLock) { 907 profile = getUserInfoLU(userHandle); 908 parent = getProfileParentLU(userHandle); 909 910 if (profile == null || !profile.isManagedProfile()) { 911 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 912 } 913 if (profile.isQuietModeEnabled() == enableQuietMode) { 914 Slog.i(LOG_TAG, "Quiet mode is already " + enableQuietMode); 915 return; 916 } 917 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 918 profileUserData = getUserDataLU(profile.id); 919 } 920 synchronized (mPackagesLock) { 921 writeUserLP(profileUserData); 922 } 923 try { 924 if (enableQuietMode) { 925 ActivityManager.getService().stopUser(userHandle, /* force */true, null); 926 LocalServices.getService(ActivityManagerInternal.class) 927 .killForegroundAppsForUser(userHandle); 928 } else { 929 IProgressListener callback = target != null 930 ? new DisableQuietModeUserUnlockedCallback(target) 931 : null; 932 ActivityManager.getService().startUserInBackgroundWithListener( 933 userHandle, callback); 934 } 935 } catch (RemoteException e) { 936 // Should not happen, same process. 937 e.rethrowAsRuntimeException(); 938 } 939 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 940 enableQuietMode); 941 } 942 943 @Override 944 public boolean isQuietModeEnabled(int userHandle) { 945 synchronized (mPackagesLock) { 946 UserInfo info; 947 synchronized (mUsersLock) { 948 info = getUserInfoLU(userHandle); 949 } 950 if (info == null || !info.isManagedProfile()) { 951 return false; 952 } 953 return info.isQuietModeEnabled(); 954 } 955 } 956 957 /** 958 * Show confirm credential screen to unlock user in order to turn off quiet mode. 959 */ 960 private void showConfirmCredentialToDisableQuietMode( 961 @UserIdInt int userHandle, @Nullable IntentSender target) { 962 // otherwise, we show a profile challenge to trigger decryption of the user 963 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 964 Context.KEYGUARD_SERVICE); 965 // We should use userHandle not credentialOwnerUserId here, as even if it is unified 966 // lock, confirm screenlock page will know and show personal challenge, and unlock 967 // work profile when personal challenge is correct 968 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 969 userHandle); 970 if (unlockIntent == null) { 971 return; 972 } 973 final Intent callBackIntent = new Intent( 974 ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK); 975 if (target != null) { 976 callBackIntent.putExtra(Intent.EXTRA_INTENT, target); 977 } 978 callBackIntent.putExtra(Intent.EXTRA_USER_ID, userHandle); 979 callBackIntent.setPackage(mContext.getPackageName()); 980 callBackIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 981 final PendingIntent pendingIntent = PendingIntent.getBroadcast( 982 mContext, 983 0, 984 callBackIntent, 985 PendingIntent.FLAG_CANCEL_CURRENT | 986 PendingIntent.FLAG_ONE_SHOT | 987 PendingIntent.FLAG_IMMUTABLE); 988 // After unlocking the challenge, it will disable quiet mode and run the original 989 // intentSender 990 unlockIntent.putExtra(Intent.EXTRA_INTENT, pendingIntent.getIntentSender()); 991 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 992 mContext.startActivity(unlockIntent); 993 } 994 995 @Override 996 public void setUserEnabled(int userId) { 997 checkManageUsersPermission("enable user"); 998 synchronized (mPackagesLock) { 999 UserInfo info; 1000 synchronized (mUsersLock) { 1001 info = getUserInfoLU(userId); 1002 } 1003 if (info != null && !info.isEnabled()) { 1004 info.flags ^= UserInfo.FLAG_DISABLED; 1005 writeUserLP(getUserDataLU(info.id)); 1006 } 1007 } 1008 } 1009 1010 /** 1011 * Evicts a user's CE key by stopping and restarting the user. 1012 * 1013 * The key is evicted automatically by the user controller when the user has stopped. 1014 */ 1015 @Override 1016 public void evictCredentialEncryptionKey(@UserIdInt int userId) { 1017 checkManageUsersPermission("evict CE key"); 1018 final IActivityManager am = ActivityManagerNative.getDefault(); 1019 final long identity = Binder.clearCallingIdentity(); 1020 try { 1021 am.restartUserInBackground(userId); 1022 } catch (RemoteException re) { 1023 throw re.rethrowAsRuntimeException(); 1024 } finally { 1025 Binder.restoreCallingIdentity(identity); 1026 } 1027 } 1028 1029 @Override 1030 public UserInfo getUserInfo(int userId) { 1031 checkManageOrCreateUsersPermission("query user"); 1032 synchronized (mUsersLock) { 1033 return userWithName(getUserInfoLU(userId)); 1034 } 1035 } 1036 1037 /** 1038 * Returns a UserInfo object with the name filled in, for Owner, or the original 1039 * if the name is already set. 1040 */ 1041 private UserInfo userWithName(UserInfo orig) { 1042 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 1043 UserInfo withName = new UserInfo(orig); 1044 withName.name = getOwnerName(); 1045 return withName; 1046 } else { 1047 return orig; 1048 } 1049 } 1050 1051 @Override 1052 public int getManagedProfileBadge(@UserIdInt int userId) { 1053 int callingUserId = UserHandle.getCallingUserId(); 1054 if (callingUserId != userId && !hasManageUsersPermission()) { 1055 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 1056 throw new SecurityException( 1057 "You need MANAGE_USERS permission to: check if specified user a " + 1058 "managed profile outside your profile group"); 1059 } 1060 } 1061 synchronized (mUsersLock) { 1062 UserInfo userInfo = getUserInfoLU(userId); 1063 return userInfo != null ? userInfo.profileBadge : 0; 1064 } 1065 } 1066 1067 @Override 1068 public boolean isManagedProfile(int userId) { 1069 int callingUserId = UserHandle.getCallingUserId(); 1070 if (callingUserId != userId && !hasManageUsersPermission()) { 1071 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 1072 throw new SecurityException( 1073 "You need MANAGE_USERS permission to: check if specified user a " + 1074 "managed profile outside your profile group"); 1075 } 1076 } 1077 synchronized (mUsersLock) { 1078 UserInfo userInfo = getUserInfoLU(userId); 1079 return userInfo != null && userInfo.isManagedProfile(); 1080 } 1081 } 1082 1083 @Override 1084 public boolean isUserUnlockingOrUnlocked(int userId) { 1085 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlockingOrUnlocked"); 1086 return mLocalService.isUserUnlockingOrUnlocked(userId); 1087 } 1088 1089 @Override 1090 public boolean isUserUnlocked(int userId) { 1091 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlocked"); 1092 return mLocalService.isUserUnlocked(userId); 1093 } 1094 1095 @Override 1096 public boolean isUserRunning(int userId) { 1097 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserRunning"); 1098 return mLocalService.isUserRunning(userId); 1099 } 1100 1101 @Override 1102 public long getUserStartRealtime() { 1103 final int userId = UserHandle.getUserId(Binder.getCallingUid()); 1104 synchronized (mUsersLock) { 1105 final UserData user = getUserDataLU(userId); 1106 if (user != null) { 1107 return user.startRealtime; 1108 } 1109 return 0; 1110 } 1111 } 1112 1113 @Override 1114 public long getUserUnlockRealtime() { 1115 synchronized (mUsersLock) { 1116 final UserData user = getUserDataLU(UserHandle.getUserId(Binder.getCallingUid())); 1117 if (user != null) { 1118 return user.unlockRealtime; 1119 } 1120 return 0; 1121 } 1122 } 1123 1124 private void checkManageOrInteractPermIfCallerInOtherProfileGroup(int userId, String name) { 1125 int callingUserId = UserHandle.getCallingUserId(); 1126 if (callingUserId == userId || isSameProfileGroupNoChecks(callingUserId, userId) || 1127 hasManageUsersPermission()) { 1128 return; 1129 } 1130 if (ActivityManager.checkComponentPermission(Manifest.permission.INTERACT_ACROSS_USERS, 1131 Binder.getCallingUid(), -1, true) != PackageManager.PERMISSION_GRANTED) { 1132 throw new SecurityException("You need INTERACT_ACROSS_USERS or MANAGE_USERS permission " 1133 + "to: check " + name); 1134 } 1135 } 1136 1137 @Override 1138 public boolean isDemoUser(int userId) { 1139 int callingUserId = UserHandle.getCallingUserId(); 1140 if (callingUserId != userId && !hasManageUsersPermission()) { 1141 throw new SecurityException("You need MANAGE_USERS permission to query if u=" + userId 1142 + " is a demo user"); 1143 } 1144 synchronized (mUsersLock) { 1145 UserInfo userInfo = getUserInfoLU(userId); 1146 return userInfo != null && userInfo.isDemo(); 1147 } 1148 } 1149 1150 @Override 1151 public boolean isRestricted() { 1152 synchronized (mUsersLock) { 1153 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 1154 } 1155 } 1156 1157 @Override 1158 public boolean canHaveRestrictedProfile(int userId) { 1159 checkManageUsersPermission("canHaveRestrictedProfile"); 1160 synchronized (mUsersLock) { 1161 final UserInfo userInfo = getUserInfoLU(userId); 1162 if (userInfo == null || !userInfo.canHaveProfile()) { 1163 return false; 1164 } 1165 if (!userInfo.isAdmin()) { 1166 return false; 1167 } 1168 // restricted profile can be created if there is no DO set and the admin user has no PO; 1169 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 1170 } 1171 } 1172 1173 @Override 1174 public boolean hasRestrictedProfiles() { 1175 checkManageUsersPermission("hasRestrictedProfiles"); 1176 final int callingUserId = UserHandle.getCallingUserId(); 1177 synchronized (mUsersLock) { 1178 final int userSize = mUsers.size(); 1179 for (int i = 0; i < userSize; i++) { 1180 UserInfo profile = mUsers.valueAt(i).info; 1181 if (callingUserId != profile.id 1182 && profile.restrictedProfileParentId == callingUserId) { 1183 return true; 1184 } 1185 } 1186 return false; 1187 } 1188 } 1189 1190 /* 1191 * Should be locked on mUsers before calling this. 1192 */ 1193 private UserInfo getUserInfoLU(int userId) { 1194 final UserData userData = mUsers.get(userId); 1195 // If it is partial and not in the process of being removed, return as unknown user. 1196 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 1197 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 1198 return null; 1199 } 1200 return userData != null ? userData.info : null; 1201 } 1202 1203 private UserData getUserDataLU(int userId) { 1204 final UserData userData = mUsers.get(userId); 1205 // If it is partial and not in the process of being removed, return as unknown user. 1206 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 1207 return null; 1208 } 1209 return userData; 1210 } 1211 1212 /** 1213 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 1214 * <p>No permissions checking or any addition checks are made</p> 1215 */ 1216 private UserInfo getUserInfoNoChecks(int userId) { 1217 synchronized (mUsersLock) { 1218 final UserData userData = mUsers.get(userId); 1219 return userData != null ? userData.info : null; 1220 } 1221 } 1222 1223 /** 1224 * Obtains {@link #mUsersLock} and return UserData from mUsers. 1225 * <p>No permissions checking or any addition checks are made</p> 1226 */ 1227 private UserData getUserDataNoChecks(int userId) { 1228 synchronized (mUsersLock) { 1229 return mUsers.get(userId); 1230 } 1231 } 1232 1233 /** Called by PackageManagerService */ 1234 public boolean exists(int userId) { 1235 return mLocalService.exists(userId); 1236 } 1237 1238 @Override 1239 public void setUserName(int userId, String name) { 1240 checkManageUsersPermission("rename users"); 1241 boolean changed = false; 1242 synchronized (mPackagesLock) { 1243 UserData userData = getUserDataNoChecks(userId); 1244 if (userData == null || userData.info.partial) { 1245 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 1246 return; 1247 } 1248 if (name != null && !name.equals(userData.info.name)) { 1249 userData.info.name = name; 1250 writeUserLP(userData); 1251 changed = true; 1252 } 1253 } 1254 if (changed) { 1255 sendUserInfoChangedBroadcast(userId); 1256 } 1257 } 1258 1259 @Override 1260 public void setUserIcon(int userId, Bitmap bitmap) { 1261 checkManageUsersPermission("update users"); 1262 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 1263 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 1264 return; 1265 } 1266 mLocalService.setUserIcon(userId, bitmap); 1267 } 1268 1269 1270 1271 private void sendUserInfoChangedBroadcast(int userId) { 1272 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 1273 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 1274 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1275 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 1276 } 1277 1278 @Override 1279 public ParcelFileDescriptor getUserIcon(int targetUserId) { 1280 String iconPath; 1281 synchronized (mPackagesLock) { 1282 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 1283 if (targetUserInfo == null || targetUserInfo.partial) { 1284 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 1285 return null; 1286 } 1287 1288 final int callingUserId = UserHandle.getCallingUserId(); 1289 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 1290 final int targetGroupId = targetUserInfo.profileGroupId; 1291 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 1292 && callingGroupId == targetGroupId); 1293 if ((callingUserId != targetUserId) && !sameGroup) { 1294 checkManageUsersPermission("get the icon of a user who is not related"); 1295 } 1296 1297 if (targetUserInfo.iconPath == null) { 1298 return null; 1299 } 1300 iconPath = targetUserInfo.iconPath; 1301 } 1302 1303 try { 1304 return ParcelFileDescriptor.open( 1305 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 1306 } catch (FileNotFoundException e) { 1307 Log.e(LOG_TAG, "Couldn't find icon file", e); 1308 } 1309 return null; 1310 } 1311 1312 public void makeInitialized(int userId) { 1313 checkManageUsersPermission("makeInitialized"); 1314 boolean scheduleWriteUser = false; 1315 UserData userData; 1316 synchronized (mUsersLock) { 1317 userData = mUsers.get(userId); 1318 if (userData == null || userData.info.partial) { 1319 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 1320 return; 1321 } 1322 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1323 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1324 scheduleWriteUser = true; 1325 } 1326 } 1327 if (scheduleWriteUser) { 1328 scheduleWriteUser(userData); 1329 } 1330 } 1331 1332 /** 1333 * If default guest restrictions haven't been initialized yet, add the basic 1334 * restrictions. 1335 */ 1336 private void initDefaultGuestRestrictions() { 1337 synchronized (mGuestRestrictions) { 1338 if (mGuestRestrictions.isEmpty()) { 1339 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 1340 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 1341 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 1342 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 1343 } 1344 } 1345 } 1346 1347 @Override 1348 public Bundle getDefaultGuestRestrictions() { 1349 checkManageUsersPermission("getDefaultGuestRestrictions"); 1350 synchronized (mGuestRestrictions) { 1351 return new Bundle(mGuestRestrictions); 1352 } 1353 } 1354 1355 @Override 1356 public void setDefaultGuestRestrictions(Bundle restrictions) { 1357 checkManageUsersPermission("setDefaultGuestRestrictions"); 1358 synchronized (mGuestRestrictions) { 1359 mGuestRestrictions.clear(); 1360 mGuestRestrictions.putAll(restrictions); 1361 } 1362 synchronized (mPackagesLock) { 1363 writeUserListLP(); 1364 } 1365 } 1366 1367 /** 1368 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions} 1369 */ 1370 private void setDevicePolicyUserRestrictionsInner(int userId, @Nullable Bundle restrictions, 1371 boolean isDeviceOwner, int cameraRestrictionScope) { 1372 final Bundle global = new Bundle(); 1373 final Bundle local = new Bundle(); 1374 1375 // Sort restrictions into local and global ensuring they don't overlap. 1376 UserRestrictionsUtils.sortToGlobalAndLocal(restrictions, isDeviceOwner, 1377 cameraRestrictionScope, global, local); 1378 1379 boolean globalChanged, localChanged; 1380 synchronized (mRestrictionsLock) { 1381 // Update global and local restrictions if they were changed. 1382 globalChanged = updateRestrictionsIfNeededLR( 1383 userId, global, mDevicePolicyGlobalUserRestrictions); 1384 localChanged = updateRestrictionsIfNeededLR( 1385 userId, local, mDevicePolicyLocalUserRestrictions); 1386 1387 if (isDeviceOwner) { 1388 // Remember the global restriction owner userId to be able to make a distinction 1389 // in getUserRestrictionSource on who set local policies. 1390 mDeviceOwnerUserId = userId; 1391 } else { 1392 if (mDeviceOwnerUserId == userId) { 1393 // When profile owner sets restrictions it passes null global bundle and we 1394 // reset global restriction owner userId. 1395 // This means this user used to have DO, but now the DO is gone and the user 1396 // instead has PO. 1397 mDeviceOwnerUserId = UserHandle.USER_NULL; 1398 } 1399 } 1400 } 1401 if (DBG) { 1402 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1403 + " global=" + global + (globalChanged ? " (changed)" : "") 1404 + " local=" + local + (localChanged ? " (changed)" : "") 1405 ); 1406 } 1407 // Don't call them within the mRestrictionsLock. 1408 synchronized (mPackagesLock) { 1409 if (localChanged || globalChanged) { 1410 writeUserLP(getUserDataNoChecks(userId)); 1411 } 1412 } 1413 1414 synchronized (mRestrictionsLock) { 1415 if (globalChanged) { 1416 applyUserRestrictionsForAllUsersLR(); 1417 } else if (localChanged) { 1418 applyUserRestrictionsLR(userId); 1419 } 1420 } 1421 } 1422 1423 /** 1424 * Updates restriction bundle for a given user in a given restriction array. If new bundle is 1425 * empty, record is removed from the array. 1426 * @return whether restrictions bundle is different from the old one. 1427 */ 1428 private boolean updateRestrictionsIfNeededLR(int userId, @Nullable Bundle restrictions, 1429 SparseArray<Bundle> restrictionsArray) { 1430 final boolean changed = 1431 !UserRestrictionsUtils.areEqual(restrictionsArray.get(userId), restrictions); 1432 if (changed) { 1433 if (!UserRestrictionsUtils.isEmpty(restrictions)) { 1434 restrictionsArray.put(userId, restrictions); 1435 } else { 1436 restrictionsArray.delete(userId); 1437 } 1438 } 1439 return changed; 1440 } 1441 1442 @GuardedBy("mRestrictionsLock") 1443 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1444 final Bundle baseRestrictions = 1445 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1446 final Bundle global = UserRestrictionsUtils.mergeAll(mDevicePolicyGlobalUserRestrictions); 1447 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1448 1449 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1450 // Common case first. 1451 return baseRestrictions; 1452 } 1453 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1454 UserRestrictionsUtils.merge(effective, global); 1455 UserRestrictionsUtils.merge(effective, local); 1456 1457 return effective; 1458 } 1459 1460 @GuardedBy("mRestrictionsLock") 1461 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1462 if (DBG) { 1463 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1464 } 1465 mCachedEffectiveUserRestrictions.remove(userId); 1466 } 1467 1468 private Bundle getEffectiveUserRestrictions(int userId) { 1469 synchronized (mRestrictionsLock) { 1470 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1471 if (restrictions == null) { 1472 restrictions = computeEffectiveUserRestrictionsLR(userId); 1473 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1474 } 1475 return restrictions; 1476 } 1477 } 1478 1479 /** @return a specific user restriction that's in effect currently. */ 1480 @Override 1481 public boolean hasUserRestriction(String restrictionKey, int userId) { 1482 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1483 return false; 1484 } 1485 Bundle restrictions = getEffectiveUserRestrictions(userId); 1486 return restrictions != null && restrictions.getBoolean(restrictionKey); 1487 } 1488 1489 /** @return if any user has the given restriction. */ 1490 @Override 1491 public boolean hasUserRestrictionOnAnyUser(String restrictionKey) { 1492 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1493 return false; 1494 } 1495 final List<UserInfo> users = getUsers(/* excludeDying= */ true); 1496 for (int i = 0; i < users.size(); i++) { 1497 final int userId = users.get(i).id; 1498 Bundle restrictions = getEffectiveUserRestrictions(userId); 1499 if (restrictions != null && restrictions.getBoolean(restrictionKey)) { 1500 return true; 1501 } 1502 } 1503 return false; 1504 } 1505 1506 /** 1507 * @hide 1508 * 1509 * Returns who set a user restriction on a user. 1510 * Requires {@link android.Manifest.permission#MANAGE_USERS} permission. 1511 * @param restrictionKey the string key representing the restriction 1512 * @param userId the id of the user for whom to retrieve the restrictions. 1513 * @return The source of user restriction. Any combination of 1514 * {@link UserManager#RESTRICTION_NOT_SET}, 1515 * {@link UserManager#RESTRICTION_SOURCE_SYSTEM}, 1516 * {@link UserManager#RESTRICTION_SOURCE_DEVICE_OWNER} 1517 * and {@link UserManager#RESTRICTION_SOURCE_PROFILE_OWNER} 1518 */ 1519 @Override 1520 public int getUserRestrictionSource(String restrictionKey, int userId) { 1521 List<EnforcingUser> enforcingUsers = getUserRestrictionSources(restrictionKey, userId); 1522 // Get "bitwise or" of restriction sources for all enforcing users. 1523 int result = UserManager.RESTRICTION_NOT_SET; 1524 for (int i = enforcingUsers.size() - 1; i >= 0; i--) { 1525 result |= enforcingUsers.get(i).getUserRestrictionSource(); 1526 } 1527 return result; 1528 } 1529 1530 @Override 1531 public List<EnforcingUser> getUserRestrictionSources( 1532 String restrictionKey, @UserIdInt int userId) { 1533 checkManageUsersPermission("getUserRestrictionSource"); 1534 1535 // Shortcut for the most common case 1536 if (!hasUserRestriction(restrictionKey, userId)) { 1537 return Collections.emptyList(); 1538 } 1539 1540 final List<EnforcingUser> result = new ArrayList<>(); 1541 1542 // Check if it is base restriction. 1543 if (hasBaseUserRestriction(restrictionKey, userId)) { 1544 result.add(new EnforcingUser( 1545 UserHandle.USER_NULL, UserManager.RESTRICTION_SOURCE_SYSTEM)); 1546 } 1547 1548 synchronized (mRestrictionsLock) { 1549 // Check if it is set by profile owner. 1550 Bundle profileOwnerRestrictions = mDevicePolicyLocalUserRestrictions.get(userId); 1551 if (UserRestrictionsUtils.contains(profileOwnerRestrictions, restrictionKey)) { 1552 result.add(getEnforcingUserLocked(userId)); 1553 } 1554 1555 // Iterate over all users who enforce global restrictions. 1556 for (int i = mDevicePolicyGlobalUserRestrictions.size() - 1; i >= 0; i--) { 1557 Bundle globalRestrictions = mDevicePolicyGlobalUserRestrictions.valueAt(i); 1558 int profileUserId = mDevicePolicyGlobalUserRestrictions.keyAt(i); 1559 if (UserRestrictionsUtils.contains(globalRestrictions, restrictionKey)) { 1560 result.add(getEnforcingUserLocked(profileUserId)); 1561 } 1562 } 1563 } 1564 return result; 1565 } 1566 1567 @GuardedBy("mRestrictionsLock") 1568 private EnforcingUser getEnforcingUserLocked(@UserIdInt int userId) { 1569 int source = mDeviceOwnerUserId == userId ? UserManager.RESTRICTION_SOURCE_DEVICE_OWNER 1570 : UserManager.RESTRICTION_SOURCE_PROFILE_OWNER; 1571 return new EnforcingUser(userId, source); 1572 } 1573 1574 /** 1575 * @return UserRestrictions that are in effect currently. This always returns a new 1576 * {@link Bundle}. 1577 */ 1578 @Override 1579 public Bundle getUserRestrictions(int userId) { 1580 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1581 } 1582 1583 @Override 1584 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1585 checkManageUsersPermission("hasBaseUserRestriction"); 1586 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1587 return false; 1588 } 1589 synchronized (mRestrictionsLock) { 1590 Bundle bundle = mBaseUserRestrictions.get(userId); 1591 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1592 } 1593 } 1594 1595 @Override 1596 public void setUserRestriction(String key, boolean value, int userId) { 1597 checkManageUsersPermission("setUserRestriction"); 1598 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1599 return; 1600 } 1601 synchronized (mRestrictionsLock) { 1602 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1603 // a copy. 1604 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1605 mBaseUserRestrictions.get(userId)); 1606 newRestrictions.putBoolean(key, value); 1607 1608 updateUserRestrictionsInternalLR(newRestrictions, userId); 1609 } 1610 } 1611 1612 /** 1613 * Optionally updating user restrictions, calculate the effective user restrictions and also 1614 * propagate to other services and system settings. 1615 * 1616 * @param newBaseRestrictions User restrictions to set. 1617 * If null, will not update user restrictions and only does the propagation. 1618 * @param userId target user ID. 1619 */ 1620 @GuardedBy("mRestrictionsLock") 1621 private void updateUserRestrictionsInternalLR( 1622 @Nullable Bundle newBaseRestrictions, int userId) { 1623 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1624 mAppliedUserRestrictions.get(userId)); 1625 1626 // Update base restrictions. 1627 if (newBaseRestrictions != null) { 1628 // If newBaseRestrictions == the current one, it's probably a bug. 1629 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1630 1631 Preconditions.checkState(prevBaseRestrictions != newBaseRestrictions); 1632 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1633 != newBaseRestrictions); 1634 1635 if (updateRestrictionsIfNeededLR(userId, newBaseRestrictions, mBaseUserRestrictions)) { 1636 scheduleWriteUser(getUserDataNoChecks(userId)); 1637 } 1638 } 1639 1640 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1641 1642 mCachedEffectiveUserRestrictions.put(userId, effective); 1643 1644 // Apply the new restrictions. 1645 if (DBG) { 1646 debug("Applying user restrictions: userId=" + userId 1647 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1648 } 1649 1650 if (mAppOpsService != null) { // We skip it until system-ready. 1651 mHandler.post(new Runnable() { 1652 @Override 1653 public void run() { 1654 try { 1655 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1656 } catch (RemoteException e) { 1657 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1658 } 1659 } 1660 }); 1661 } 1662 1663 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1664 1665 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1666 } 1667 1668 private void propagateUserRestrictionsLR(final int userId, 1669 Bundle newRestrictions, Bundle prevRestrictions) { 1670 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1671 // actually, but we still need some kind of synchronization otherwise we might end up 1672 // calling listeners out-of-order, thus "LR". 1673 1674 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1675 return; 1676 } 1677 1678 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1679 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1680 1681 mHandler.post(new Runnable() { 1682 @Override 1683 public void run() { 1684 UserRestrictionsUtils.applyUserRestrictions( 1685 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1686 1687 final UserRestrictionsListener[] listeners; 1688 synchronized (mUserRestrictionsListeners) { 1689 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1690 mUserRestrictionsListeners.toArray(listeners); 1691 } 1692 for (int i = 0; i < listeners.length; i++) { 1693 listeners[i].onUserRestrictionsChanged(userId, 1694 newRestrictionsFinal, prevRestrictionsFinal); 1695 } 1696 1697 final Intent broadcast = new Intent(UserManager.ACTION_USER_RESTRICTIONS_CHANGED) 1698 .setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1699 mContext.sendBroadcastAsUser(broadcast, UserHandle.of(userId)); 1700 } 1701 }); 1702 } 1703 1704 // Package private for the inner class. 1705 void applyUserRestrictionsLR(int userId) { 1706 updateUserRestrictionsInternalLR(null, userId); 1707 } 1708 1709 @GuardedBy("mRestrictionsLock") 1710 // Package private for the inner class. 1711 void applyUserRestrictionsForAllUsersLR() { 1712 if (DBG) { 1713 debug("applyUserRestrictionsForAllUsersLR"); 1714 } 1715 // First, invalidate all cached values. 1716 mCachedEffectiveUserRestrictions.clear(); 1717 1718 // We don't want to call into ActivityManagerService while taking a lock, so we'll call 1719 // it on a handler. 1720 final Runnable r = new Runnable() { 1721 @Override 1722 public void run() { 1723 // Then get the list of running users. 1724 final int[] runningUsers; 1725 try { 1726 runningUsers = ActivityManager.getService().getRunningUserIds(); 1727 } catch (RemoteException e) { 1728 Log.w(LOG_TAG, "Unable to access ActivityManagerService"); 1729 return; 1730 } 1731 // Then re-calculate the effective restrictions and apply, only for running users. 1732 // It's okay if a new user has started after the getRunningUserIds() call, 1733 // because we'll do the same thing (re-calculate the restrictions and apply) 1734 // when we start a user. 1735 synchronized (mRestrictionsLock) { 1736 for (int i = 0; i < runningUsers.length; i++) { 1737 applyUserRestrictionsLR(runningUsers[i]); 1738 } 1739 } 1740 } 1741 }; 1742 mHandler.post(r); 1743 } 1744 1745 /** 1746 * Check if we've hit the limit of how many users can be created. 1747 */ 1748 private boolean isUserLimitReached() { 1749 int count; 1750 synchronized (mUsersLock) { 1751 count = getAliveUsersExcludingGuestsCountLU(); 1752 } 1753 return count >= UserManager.getMaxSupportedUsers(); 1754 } 1755 1756 @Override 1757 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1758 checkManageUsersPermission("check if more managed profiles can be added."); 1759 if (ActivityManager.isLowRamDeviceStatic()) { 1760 return false; 1761 } 1762 if (!mContext.getPackageManager().hasSystemFeature( 1763 PackageManager.FEATURE_MANAGED_USERS)) { 1764 return false; 1765 } 1766 // Limit number of managed profiles that can be created 1767 final int managedProfilesCount = getProfiles(userId, false).size() - 1; 1768 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1769 if (managedProfilesCount - profilesRemovedCount >= getMaxManagedProfiles()) { 1770 return false; 1771 } 1772 synchronized(mUsersLock) { 1773 UserInfo userInfo = getUserInfoLU(userId); 1774 if (userInfo == null || !userInfo.canHaveProfile()) { 1775 return false; 1776 } 1777 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1778 - profilesRemovedCount; 1779 // We allow creating a managed profile in the special case where there is only one user. 1780 return usersCountAfterRemoving == 1 1781 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1782 } 1783 } 1784 1785 private int getAliveUsersExcludingGuestsCountLU() { 1786 int aliveUserCount = 0; 1787 final int totalUserCount = mUsers.size(); 1788 // Skip over users being removed 1789 for (int i = 0; i < totalUserCount; i++) { 1790 UserInfo user = mUsers.valueAt(i).info; 1791 if (!mRemovingUserIds.get(user.id) && !user.isGuest()) { 1792 aliveUserCount++; 1793 } 1794 } 1795 return aliveUserCount; 1796 } 1797 1798 /** 1799 * Enforces that only the system UID or root's UID or apps that have the 1800 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1801 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1802 * permissions can make certain calls to the UserManager. 1803 * 1804 * @param message used as message if SecurityException is thrown 1805 * @throws SecurityException if the caller does not have enough privilege. 1806 */ 1807 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1808 final int uid = Binder.getCallingUid(); 1809 if (uid != Process.SYSTEM_UID && uid != 0 1810 && ActivityManager.checkComponentPermission( 1811 Manifest.permission.MANAGE_USERS, 1812 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1813 && ActivityManager.checkComponentPermission( 1814 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1815 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1816 throw new SecurityException( 1817 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1818 + message); 1819 } 1820 } 1821 1822 /** 1823 * Enforces that only the system UID or root's UID or apps that have the 1824 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1825 * permission can make certain calls to the UserManager. 1826 * 1827 * @param message used as message if SecurityException is thrown 1828 * @throws SecurityException if the caller is not system or root 1829 * @see #hasManageUsersPermission() 1830 */ 1831 private static final void checkManageUsersPermission(String message) { 1832 if (!hasManageUsersPermission()) { 1833 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1834 } 1835 } 1836 1837 /** 1838 * Enforces that only the system UID or root's UID or apps that have the 1839 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1840 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} 1841 * can make certain calls to the UserManager. 1842 * 1843 * @param message used as message if SecurityException is thrown 1844 * @throws SecurityException if the caller is not system or root 1845 * @see #hasManageOrCreateUsersPermission() 1846 */ 1847 private static final void checkManageOrCreateUsersPermission(String message) { 1848 if (!hasManageOrCreateUsersPermission()) { 1849 throw new SecurityException( 1850 "You either need MANAGE_USERS or CREATE_USERS permission to: " + message); 1851 } 1852 } 1853 1854 /** 1855 * Similar to {@link #checkManageOrCreateUsersPermission(String)} but when the caller is tries 1856 * to create user/profiles other than what is allowed for 1857 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} permission, then it will only 1858 * allow callers with {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} permission. 1859 */ 1860 private static final void checkManageOrCreateUsersPermission(int creationFlags) { 1861 if ((creationFlags & ~ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION) == 0) { 1862 if (!hasManageOrCreateUsersPermission()) { 1863 throw new SecurityException("You either need MANAGE_USERS or CREATE_USERS " 1864 + "permission to create an user with flags: " + creationFlags); 1865 } 1866 } else if (!hasManageUsersPermission()) { 1867 throw new SecurityException("You need MANAGE_USERS permission to create an user " 1868 + " with flags: " + creationFlags); 1869 } 1870 } 1871 1872 /** 1873 * @return whether the calling UID is system UID or root's UID or the calling app has the 1874 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1875 */ 1876 private static final boolean hasManageUsersPermission() { 1877 final int callingUid = Binder.getCallingUid(); 1878 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1879 || callingUid == Process.ROOT_UID 1880 || ActivityManager.checkComponentPermission( 1881 android.Manifest.permission.MANAGE_USERS, 1882 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1883 } 1884 1885 /** 1886 * @return whether the calling UID is system UID or root's UID or the calling app has the 1887 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1888 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS}. 1889 */ 1890 private static final boolean hasManageOrCreateUsersPermission() { 1891 final int callingUid = Binder.getCallingUid(); 1892 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1893 || callingUid == Process.ROOT_UID 1894 || ActivityManager.checkComponentPermission( 1895 android.Manifest.permission.MANAGE_USERS, 1896 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED 1897 || ActivityManager.checkComponentPermission( 1898 android.Manifest.permission.CREATE_USERS, 1899 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1900 } 1901 1902 /** 1903 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1904 * UserManager. 1905 * 1906 * @param message used as message if SecurityException is thrown 1907 * @throws SecurityException if the caller is not system or root 1908 */ 1909 private static void checkSystemOrRoot(String message) { 1910 final int uid = Binder.getCallingUid(); 1911 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1912 throw new SecurityException("Only system may: " + message); 1913 } 1914 } 1915 1916 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1917 try { 1918 File dir = new File(mUsersDir, Integer.toString(info.id)); 1919 File file = new File(dir, USER_PHOTO_FILENAME); 1920 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1921 if (!dir.exists()) { 1922 dir.mkdir(); 1923 FileUtils.setPermissions( 1924 dir.getPath(), 1925 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1926 -1, -1); 1927 } 1928 FileOutputStream os; 1929 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1930 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1931 info.iconPath = file.getAbsolutePath(); 1932 } 1933 try { 1934 os.close(); 1935 } catch (IOException ioe) { 1936 // What the ... ! 1937 } 1938 tmp.delete(); 1939 } catch (FileNotFoundException e) { 1940 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1941 } 1942 } 1943 1944 /** 1945 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1946 * cache it elsewhere. 1947 * @return the array of user ids. 1948 */ 1949 public int[] getUserIds() { 1950 synchronized (mUsersLock) { 1951 return mUserIds; 1952 } 1953 } 1954 1955 private void readUserListLP() { 1956 if (!mUserListFile.exists()) { 1957 fallbackToSingleUserLP(); 1958 return; 1959 } 1960 FileInputStream fis = null; 1961 AtomicFile userListFile = new AtomicFile(mUserListFile); 1962 try { 1963 fis = userListFile.openRead(); 1964 XmlPullParser parser = Xml.newPullParser(); 1965 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1966 int type; 1967 while ((type = parser.next()) != XmlPullParser.START_TAG 1968 && type != XmlPullParser.END_DOCUMENT) { 1969 // Skip 1970 } 1971 1972 if (type != XmlPullParser.START_TAG) { 1973 Slog.e(LOG_TAG, "Unable to read user list"); 1974 fallbackToSingleUserLP(); 1975 return; 1976 } 1977 1978 mNextSerialNumber = -1; 1979 if (parser.getName().equals(TAG_USERS)) { 1980 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1981 if (lastSerialNumber != null) { 1982 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1983 } 1984 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1985 if (versionNumber != null) { 1986 mUserVersion = Integer.parseInt(versionNumber); 1987 } 1988 } 1989 1990 // Pre-O global user restriction were stored as a single bundle (as opposed to per-user 1991 // currently), take care of it in case of upgrade. 1992 Bundle oldDevicePolicyGlobalUserRestrictions = null; 1993 1994 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1995 if (type == XmlPullParser.START_TAG) { 1996 final String name = parser.getName(); 1997 if (name.equals(TAG_USER)) { 1998 String id = parser.getAttributeValue(null, ATTR_ID); 1999 2000 UserData userData = readUserLP(Integer.parseInt(id)); 2001 2002 if (userData != null) { 2003 synchronized (mUsersLock) { 2004 mUsers.put(userData.info.id, userData); 2005 if (mNextSerialNumber < 0 2006 || mNextSerialNumber <= userData.info.id) { 2007 mNextSerialNumber = userData.info.id + 1; 2008 } 2009 } 2010 } 2011 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 2012 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 2013 && type != XmlPullParser.END_TAG) { 2014 if (type == XmlPullParser.START_TAG) { 2015 if (parser.getName().equals(TAG_RESTRICTIONS)) { 2016 synchronized (mGuestRestrictions) { 2017 UserRestrictionsUtils 2018 .readRestrictions(parser, mGuestRestrictions); 2019 } 2020 } 2021 break; 2022 } 2023 } 2024 } else if (name.equals(TAG_DEVICE_OWNER_USER_ID) 2025 // Legacy name, should only be encountered when upgrading from pre-O. 2026 || name.equals(TAG_GLOBAL_RESTRICTION_OWNER_ID)) { 2027 String ownerUserId = parser.getAttributeValue(null, ATTR_ID); 2028 if (ownerUserId != null) { 2029 mDeviceOwnerUserId = Integer.parseInt(ownerUserId); 2030 } 2031 } else if (name.equals(TAG_DEVICE_POLICY_RESTRICTIONS)) { 2032 // Should only happen when upgrading from pre-O (version < 7). 2033 oldDevicePolicyGlobalUserRestrictions = 2034 UserRestrictionsUtils.readRestrictions(parser); 2035 } 2036 } 2037 } 2038 2039 updateUserIds(); 2040 upgradeIfNecessaryLP(oldDevicePolicyGlobalUserRestrictions); 2041 } catch (IOException | XmlPullParserException e) { 2042 fallbackToSingleUserLP(); 2043 } finally { 2044 IoUtils.closeQuietly(fis); 2045 } 2046 } 2047 2048 /** 2049 * Upgrade steps between versions, either for fixing bugs or changing the data format. 2050 * @param oldGlobalUserRestrictions Pre-O global device policy restrictions. 2051 */ 2052 private void upgradeIfNecessaryLP(Bundle oldGlobalUserRestrictions) { 2053 final int originalVersion = mUserVersion; 2054 int userVersion = mUserVersion; 2055 if (userVersion < 1) { 2056 // Assign a proper name for the owner, if not initialized correctly before 2057 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 2058 if ("Primary".equals(userData.info.name)) { 2059 userData.info.name = 2060 mContext.getResources().getString(com.android.internal.R.string.owner_name); 2061 scheduleWriteUser(userData); 2062 } 2063 userVersion = 1; 2064 } 2065 2066 if (userVersion < 2) { 2067 // Owner should be marked as initialized 2068 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 2069 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 2070 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 2071 scheduleWriteUser(userData); 2072 } 2073 userVersion = 2; 2074 } 2075 2076 2077 if (userVersion < 4) { 2078 userVersion = 4; 2079 } 2080 2081 if (userVersion < 5) { 2082 initDefaultGuestRestrictions(); 2083 userVersion = 5; 2084 } 2085 2086 if (userVersion < 6) { 2087 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 2088 synchronized (mUsersLock) { 2089 for (int i = 0; i < mUsers.size(); i++) { 2090 UserData userData = mUsers.valueAt(i); 2091 // In non-split mode, only user 0 can have restricted profiles 2092 if (!splitSystemUser && userData.info.isRestricted() 2093 && (userData.info.restrictedProfileParentId 2094 == UserInfo.NO_PROFILE_GROUP_ID)) { 2095 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 2096 scheduleWriteUser(userData); 2097 } 2098 } 2099 } 2100 userVersion = 6; 2101 } 2102 2103 if (userVersion < 7) { 2104 // Previously only one user could enforce global restrictions, now it is per-user. 2105 synchronized (mRestrictionsLock) { 2106 if (!UserRestrictionsUtils.isEmpty(oldGlobalUserRestrictions) 2107 && mDeviceOwnerUserId != UserHandle.USER_NULL) { 2108 mDevicePolicyGlobalUserRestrictions.put( 2109 mDeviceOwnerUserId, oldGlobalUserRestrictions); 2110 } 2111 // ENSURE_VERIFY_APPS is now enforced globally even if put by profile owner, so move 2112 // it from local to global bundle for all users who set it. 2113 UserRestrictionsUtils.moveRestriction(UserManager.ENSURE_VERIFY_APPS, 2114 mDevicePolicyLocalUserRestrictions, mDevicePolicyGlobalUserRestrictions 2115 ); 2116 } 2117 userVersion = 7; 2118 } 2119 2120 if (userVersion < USER_VERSION) { 2121 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 2122 + USER_VERSION); 2123 } else { 2124 mUserVersion = userVersion; 2125 2126 if (originalVersion < mUserVersion) { 2127 writeUserListLP(); 2128 } 2129 } 2130 } 2131 2132 private void fallbackToSingleUserLP() { 2133 int flags = UserInfo.FLAG_INITIALIZED; 2134 // In split system user mode, the admin and primary flags are assigned to the first human 2135 // user. 2136 if (!UserManager.isSplitSystemUser()) { 2137 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 2138 } 2139 // Create the system user 2140 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 2141 UserData userData = putUserInfo(system); 2142 mNextSerialNumber = MIN_USER_ID; 2143 mUserVersion = USER_VERSION; 2144 2145 Bundle restrictions = new Bundle(); 2146 try { 2147 final String[] defaultFirstUserRestrictions = mContext.getResources().getStringArray( 2148 com.android.internal.R.array.config_defaultFirstUserRestrictions); 2149 for (String userRestriction : defaultFirstUserRestrictions) { 2150 if (UserRestrictionsUtils.isValidRestriction(userRestriction)) { 2151 restrictions.putBoolean(userRestriction, true); 2152 } 2153 } 2154 } catch (Resources.NotFoundException e) { 2155 Log.e(LOG_TAG, "Couldn't find resource: config_defaultFirstUserRestrictions", e); 2156 } 2157 2158 if (!restrictions.isEmpty()) { 2159 synchronized (mRestrictionsLock) { 2160 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 2161 } 2162 } 2163 2164 updateUserIds(); 2165 initDefaultGuestRestrictions(); 2166 2167 writeUserLP(userData); 2168 writeUserListLP(); 2169 } 2170 2171 private String getOwnerName() { 2172 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 2173 } 2174 2175 private void scheduleWriteUser(UserData UserData) { 2176 if (DBG) { 2177 debug("scheduleWriteUser"); 2178 } 2179 // No need to wrap it within a lock -- worst case, we'll just post the same message 2180 // twice. 2181 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 2182 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 2183 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 2184 } 2185 } 2186 2187 private void writeUserLP(UserData userData) { 2188 if (DBG) { 2189 debug("writeUserLP " + userData); 2190 } 2191 FileOutputStream fos = null; 2192 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 2193 try { 2194 fos = userFile.startWrite(); 2195 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2196 writeUserLP(userData, bos); 2197 userFile.finishWrite(fos); 2198 } catch (Exception ioe) { 2199 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 2200 userFile.failWrite(fos); 2201 } 2202 } 2203 2204 /* 2205 * Writes the user file in this format: 2206 * 2207 * <user flags="20039023" id="0"> 2208 * <name>Primary</name> 2209 * </user> 2210 */ 2211 @VisibleForTesting 2212 void writeUserLP(UserData userData, OutputStream os) 2213 throws IOException, XmlPullParserException { 2214 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2215 final XmlSerializer serializer = new FastXmlSerializer(); 2216 serializer.setOutput(os, StandardCharsets.UTF_8.name()); 2217 serializer.startDocument(null, true); 2218 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2219 2220 final UserInfo userInfo = userData.info; 2221 serializer.startTag(null, TAG_USER); 2222 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 2223 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 2224 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 2225 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 2226 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 2227 Long.toString(userInfo.lastLoggedInTime)); 2228 if (userInfo.lastLoggedInFingerprint != null) { 2229 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 2230 userInfo.lastLoggedInFingerprint); 2231 } 2232 if (userInfo.iconPath != null) { 2233 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 2234 } 2235 if (userInfo.partial) { 2236 serializer.attribute(null, ATTR_PARTIAL, "true"); 2237 } 2238 if (userInfo.guestToRemove) { 2239 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 2240 } 2241 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 2242 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 2243 Integer.toString(userInfo.profileGroupId)); 2244 } 2245 serializer.attribute(null, ATTR_PROFILE_BADGE, 2246 Integer.toString(userInfo.profileBadge)); 2247 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 2248 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 2249 Integer.toString(userInfo.restrictedProfileParentId)); 2250 } 2251 // Write seed data 2252 if (userData.persistSeedData) { 2253 if (userData.seedAccountName != null) { 2254 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 2255 } 2256 if (userData.seedAccountType != null) { 2257 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 2258 } 2259 } 2260 if (userInfo.name != null) { 2261 serializer.startTag(null, TAG_NAME); 2262 serializer.text(userInfo.name); 2263 serializer.endTag(null, TAG_NAME); 2264 } 2265 synchronized (mRestrictionsLock) { 2266 UserRestrictionsUtils.writeRestrictions(serializer, 2267 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 2268 UserRestrictionsUtils.writeRestrictions(serializer, 2269 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 2270 TAG_DEVICE_POLICY_RESTRICTIONS); 2271 UserRestrictionsUtils.writeRestrictions(serializer, 2272 mDevicePolicyGlobalUserRestrictions.get(userInfo.id), 2273 TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS); 2274 } 2275 2276 if (userData.account != null) { 2277 serializer.startTag(null, TAG_ACCOUNT); 2278 serializer.text(userData.account); 2279 serializer.endTag(null, TAG_ACCOUNT); 2280 } 2281 2282 if (userData.persistSeedData && userData.seedAccountOptions != null) { 2283 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2284 userData.seedAccountOptions.saveToXml(serializer); 2285 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2286 } 2287 2288 serializer.endTag(null, TAG_USER); 2289 2290 serializer.endDocument(); 2291 } 2292 2293 /* 2294 * Writes the user list file in this format: 2295 * 2296 * <users nextSerialNumber="3"> 2297 * <user id="0"></user> 2298 * <user id="2"></user> 2299 * </users> 2300 */ 2301 private void writeUserListLP() { 2302 if (DBG) { 2303 debug("writeUserList"); 2304 } 2305 FileOutputStream fos = null; 2306 AtomicFile userListFile = new AtomicFile(mUserListFile); 2307 try { 2308 fos = userListFile.startWrite(); 2309 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2310 2311 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2312 final XmlSerializer serializer = new FastXmlSerializer(); 2313 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2314 serializer.startDocument(null, true); 2315 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2316 2317 serializer.startTag(null, TAG_USERS); 2318 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 2319 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 2320 2321 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 2322 synchronized (mGuestRestrictions) { 2323 UserRestrictionsUtils 2324 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 2325 } 2326 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 2327 serializer.startTag(null, TAG_DEVICE_OWNER_USER_ID); 2328 serializer.attribute(null, ATTR_ID, Integer.toString(mDeviceOwnerUserId)); 2329 serializer.endTag(null, TAG_DEVICE_OWNER_USER_ID); 2330 int[] userIdsToWrite; 2331 synchronized (mUsersLock) { 2332 userIdsToWrite = new int[mUsers.size()]; 2333 for (int i = 0; i < userIdsToWrite.length; i++) { 2334 UserInfo user = mUsers.valueAt(i).info; 2335 userIdsToWrite[i] = user.id; 2336 } 2337 } 2338 for (int id : userIdsToWrite) { 2339 serializer.startTag(null, TAG_USER); 2340 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 2341 serializer.endTag(null, TAG_USER); 2342 } 2343 2344 serializer.endTag(null, TAG_USERS); 2345 2346 serializer.endDocument(); 2347 userListFile.finishWrite(fos); 2348 } catch (Exception e) { 2349 userListFile.failWrite(fos); 2350 Slog.e(LOG_TAG, "Error writing user list"); 2351 } 2352 } 2353 2354 private UserData readUserLP(int id) { 2355 FileInputStream fis = null; 2356 try { 2357 AtomicFile userFile = 2358 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 2359 fis = userFile.openRead(); 2360 return readUserLP(id, fis); 2361 } catch (IOException ioe) { 2362 Slog.e(LOG_TAG, "Error reading user list"); 2363 } catch (XmlPullParserException pe) { 2364 Slog.e(LOG_TAG, "Error reading user list"); 2365 } finally { 2366 IoUtils.closeQuietly(fis); 2367 } 2368 return null; 2369 } 2370 2371 @VisibleForTesting 2372 UserData readUserLP(int id, InputStream is) throws IOException, 2373 XmlPullParserException { 2374 int flags = 0; 2375 int serialNumber = id; 2376 String name = null; 2377 String account = null; 2378 String iconPath = null; 2379 long creationTime = 0L; 2380 long lastLoggedInTime = 0L; 2381 String lastLoggedInFingerprint = null; 2382 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 2383 int profileBadge = 0; 2384 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 2385 boolean partial = false; 2386 boolean guestToRemove = false; 2387 boolean persistSeedData = false; 2388 String seedAccountName = null; 2389 String seedAccountType = null; 2390 PersistableBundle seedAccountOptions = null; 2391 Bundle baseRestrictions = null; 2392 Bundle localRestrictions = null; 2393 Bundle globalRestrictions = null; 2394 2395 XmlPullParser parser = Xml.newPullParser(); 2396 parser.setInput(is, StandardCharsets.UTF_8.name()); 2397 int type; 2398 while ((type = parser.next()) != XmlPullParser.START_TAG 2399 && type != XmlPullParser.END_DOCUMENT) { 2400 // Skip 2401 } 2402 2403 if (type != XmlPullParser.START_TAG) { 2404 Slog.e(LOG_TAG, "Unable to read user " + id); 2405 return null; 2406 } 2407 2408 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 2409 int storedId = readIntAttribute(parser, ATTR_ID, -1); 2410 if (storedId != id) { 2411 Slog.e(LOG_TAG, "User id does not match the file name"); 2412 return null; 2413 } 2414 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 2415 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 2416 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 2417 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 2418 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 2419 lastLoggedInFingerprint = parser.getAttributeValue(null, 2420 ATTR_LAST_LOGGED_IN_FINGERPRINT); 2421 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 2422 UserInfo.NO_PROFILE_GROUP_ID); 2423 profileBadge = readIntAttribute(parser, ATTR_PROFILE_BADGE, 0); 2424 restrictedProfileParentId = readIntAttribute(parser, 2425 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 2426 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 2427 if ("true".equals(valueString)) { 2428 partial = true; 2429 } 2430 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 2431 if ("true".equals(valueString)) { 2432 guestToRemove = true; 2433 } 2434 2435 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 2436 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 2437 if (seedAccountName != null || seedAccountType != null) { 2438 persistSeedData = true; 2439 } 2440 2441 int outerDepth = parser.getDepth(); 2442 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 2443 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2444 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2445 continue; 2446 } 2447 String tag = parser.getName(); 2448 if (TAG_NAME.equals(tag)) { 2449 type = parser.next(); 2450 if (type == XmlPullParser.TEXT) { 2451 name = parser.getText(); 2452 } 2453 } else if (TAG_RESTRICTIONS.equals(tag)) { 2454 baseRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2455 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 2456 localRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2457 } else if (TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS.equals(tag)) { 2458 globalRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2459 } else if (TAG_ACCOUNT.equals(tag)) { 2460 type = parser.next(); 2461 if (type == XmlPullParser.TEXT) { 2462 account = parser.getText(); 2463 } 2464 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 2465 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 2466 persistSeedData = true; 2467 } 2468 } 2469 } 2470 2471 // Create the UserInfo object that gets passed around 2472 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 2473 userInfo.serialNumber = serialNumber; 2474 userInfo.creationTime = creationTime; 2475 userInfo.lastLoggedInTime = lastLoggedInTime; 2476 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 2477 userInfo.partial = partial; 2478 userInfo.guestToRemove = guestToRemove; 2479 userInfo.profileGroupId = profileGroupId; 2480 userInfo.profileBadge = profileBadge; 2481 userInfo.restrictedProfileParentId = restrictedProfileParentId; 2482 2483 // Create the UserData object that's internal to this class 2484 UserData userData = new UserData(); 2485 userData.info = userInfo; 2486 userData.account = account; 2487 userData.seedAccountName = seedAccountName; 2488 userData.seedAccountType = seedAccountType; 2489 userData.persistSeedData = persistSeedData; 2490 userData.seedAccountOptions = seedAccountOptions; 2491 2492 synchronized (mRestrictionsLock) { 2493 if (baseRestrictions != null) { 2494 mBaseUserRestrictions.put(id, baseRestrictions); 2495 } 2496 if (localRestrictions != null) { 2497 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 2498 } 2499 if (globalRestrictions != null) { 2500 mDevicePolicyGlobalUserRestrictions.put(id, globalRestrictions); 2501 } 2502 } 2503 return userData; 2504 } 2505 2506 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 2507 String valueString = parser.getAttributeValue(null, attr); 2508 if (valueString == null) return defaultValue; 2509 try { 2510 return Integer.parseInt(valueString); 2511 } catch (NumberFormatException nfe) { 2512 return defaultValue; 2513 } 2514 } 2515 2516 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 2517 String valueString = parser.getAttributeValue(null, attr); 2518 if (valueString == null) return defaultValue; 2519 try { 2520 return Long.parseLong(valueString); 2521 } catch (NumberFormatException nfe) { 2522 return defaultValue; 2523 } 2524 } 2525 2526 /** 2527 * Removes the app restrictions file for a specific package and user id, if it exists. 2528 */ 2529 private static void cleanAppRestrictionsForPackageLAr(String pkg, int userId) { 2530 File dir = Environment.getUserSystemDirectory(userId); 2531 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 2532 if (resFile.exists()) { 2533 resFile.delete(); 2534 } 2535 } 2536 2537 @Override 2538 public UserInfo createProfileForUser(String name, int flags, int userId, 2539 String[] disallowedPackages) { 2540 checkManageOrCreateUsersPermission(flags); 2541 return createUserInternal(name, flags, userId, disallowedPackages); 2542 } 2543 2544 @Override 2545 public UserInfo createProfileForUserEvenWhenDisallowed(String name, int flags, int userId, 2546 String[] disallowedPackages) { 2547 checkManageOrCreateUsersPermission(flags); 2548 return createUserInternalUnchecked(name, flags, userId, disallowedPackages); 2549 } 2550 2551 @Override 2552 public boolean removeUserEvenWhenDisallowed(@UserIdInt int userHandle) { 2553 checkManageOrCreateUsersPermission("Only the system can remove users"); 2554 return removeUserUnchecked(userHandle); 2555 } 2556 2557 @Override 2558 public UserInfo createUser(String name, int flags) { 2559 checkManageOrCreateUsersPermission(flags); 2560 return createUserInternal(name, flags, UserHandle.USER_NULL); 2561 } 2562 2563 private UserInfo createUserInternal(String name, int flags, int parentId) { 2564 return createUserInternal(name, flags, parentId, null); 2565 } 2566 2567 private UserInfo createUserInternal(String name, int flags, int parentId, 2568 String[] disallowedPackages) { 2569 String restriction = ((flags & UserInfo.FLAG_MANAGED_PROFILE) != 0) 2570 ? UserManager.DISALLOW_ADD_MANAGED_PROFILE 2571 : UserManager.DISALLOW_ADD_USER; 2572 if (hasUserRestriction(restriction, UserHandle.getCallingUserId())) { 2573 Log.w(LOG_TAG, "Cannot add user. " + restriction + " is enabled."); 2574 return null; 2575 } 2576 return createUserInternalUnchecked(name, flags, parentId, disallowedPackages); 2577 } 2578 2579 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId, 2580 String[] disallowedPackages) { 2581 DeviceStorageMonitorInternal dsm = LocalServices 2582 .getService(DeviceStorageMonitorInternal.class); 2583 if (dsm.isMemoryLow()) { 2584 Log.w(LOG_TAG, "Cannot add user. Not enough space on disk."); 2585 return null; 2586 } 2587 if (ActivityManager.isLowRamDeviceStatic()) { 2588 return null; 2589 } 2590 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 2591 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 2592 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 2593 final boolean isDemo = (flags & UserInfo.FLAG_DEMO) != 0; 2594 final long ident = Binder.clearCallingIdentity(); 2595 UserInfo userInfo; 2596 UserData userData; 2597 final int userId; 2598 try { 2599 synchronized (mPackagesLock) { 2600 UserData parent = null; 2601 if (parentId != UserHandle.USER_NULL) { 2602 synchronized (mUsersLock) { 2603 parent = getUserDataLU(parentId); 2604 } 2605 if (parent == null) return null; 2606 } 2607 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 2608 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 2609 return null; 2610 } 2611 if (!isGuest && !isManagedProfile && !isDemo && isUserLimitReached()) { 2612 // If we're not adding a guest/demo user or a managed profile and the limit has 2613 // been reached, cannot add a user. 2614 return null; 2615 } 2616 // If we're adding a guest and there already exists one, bail. 2617 if (isGuest && findCurrentGuestUser() != null) { 2618 return null; 2619 } 2620 // In legacy mode, restricted profile's parent can only be the owner user 2621 if (isRestricted && !UserManager.isSplitSystemUser() 2622 && (parentId != UserHandle.USER_SYSTEM)) { 2623 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 2624 return null; 2625 } 2626 if (isRestricted && UserManager.isSplitSystemUser()) { 2627 if (parent == null) { 2628 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 2629 + "specified"); 2630 return null; 2631 } 2632 if (!parent.info.canHaveProfile()) { 2633 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 2634 + "created for the specified parent user id " + parentId); 2635 return null; 2636 } 2637 } 2638 // In split system user mode, we assign the first human user the primary flag. 2639 // And if there is no device owner, we also assign the admin flag to primary user. 2640 if (UserManager.isSplitSystemUser() 2641 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2642 flags |= UserInfo.FLAG_PRIMARY; 2643 synchronized (mUsersLock) { 2644 if (!mIsDeviceManaged) { 2645 flags |= UserInfo.FLAG_ADMIN; 2646 } 2647 } 2648 } 2649 2650 userId = getNextAvailableId(); 2651 Environment.getUserSystemDirectory(userId).mkdirs(); 2652 boolean ephemeralGuests = Resources.getSystem() 2653 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2654 2655 synchronized (mUsersLock) { 2656 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2657 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2658 || (parent != null && parent.info.isEphemeral())) { 2659 flags |= UserInfo.FLAG_EPHEMERAL; 2660 } 2661 2662 userInfo = new UserInfo(userId, name, null, flags); 2663 userInfo.serialNumber = mNextSerialNumber++; 2664 long now = System.currentTimeMillis(); 2665 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2666 userInfo.partial = true; 2667 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2668 if (isManagedProfile && parentId != UserHandle.USER_NULL) { 2669 userInfo.profileBadge = getFreeProfileBadgeLU(parentId); 2670 } 2671 userData = new UserData(); 2672 userData.info = userInfo; 2673 mUsers.put(userId, userData); 2674 } 2675 writeUserLP(userData); 2676 writeUserListLP(); 2677 if (parent != null) { 2678 if (isManagedProfile) { 2679 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2680 parent.info.profileGroupId = parent.info.id; 2681 writeUserLP(parent); 2682 } 2683 userInfo.profileGroupId = parent.info.profileGroupId; 2684 } else if (isRestricted) { 2685 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2686 parent.info.restrictedProfileParentId = parent.info.id; 2687 writeUserLP(parent); 2688 } 2689 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2690 } 2691 } 2692 } 2693 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2694 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2695 mUserDataPreparer.prepareUserData(userId, userInfo.serialNumber, 2696 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2697 mPm.createNewUser(userId, disallowedPackages); 2698 userInfo.partial = false; 2699 synchronized (mPackagesLock) { 2700 writeUserLP(userData); 2701 } 2702 updateUserIds(); 2703 Bundle restrictions = new Bundle(); 2704 if (isGuest) { 2705 synchronized (mGuestRestrictions) { 2706 restrictions.putAll(mGuestRestrictions); 2707 } 2708 } 2709 synchronized (mRestrictionsLock) { 2710 mBaseUserRestrictions.append(userId, restrictions); 2711 } 2712 mPm.onNewUserCreated(userId); 2713 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2714 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2715 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2716 android.Manifest.permission.MANAGE_USERS); 2717 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED 2718 : (isDemo ? TRON_DEMO_CREATED : TRON_USER_CREATED), 1); 2719 } finally { 2720 Binder.restoreCallingIdentity(ident); 2721 } 2722 return userInfo; 2723 } 2724 2725 @VisibleForTesting 2726 UserData putUserInfo(UserInfo userInfo) { 2727 final UserData userData = new UserData(); 2728 userData.info = userInfo; 2729 synchronized (mUsers) { 2730 mUsers.put(userInfo.id, userData); 2731 } 2732 return userData; 2733 } 2734 2735 @VisibleForTesting 2736 void removeUserInfo(int userId) { 2737 synchronized (mUsers) { 2738 mUsers.remove(userId); 2739 } 2740 } 2741 2742 /** 2743 * @hide 2744 */ 2745 @Override 2746 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2747 checkManageOrCreateUsersPermission("setupRestrictedProfile"); 2748 final UserInfo user = createProfileForUser( 2749 name, UserInfo.FLAG_RESTRICTED, parentUserId, null); 2750 if (user == null) { 2751 return null; 2752 } 2753 long identity = Binder.clearCallingIdentity(); 2754 try { 2755 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2756 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2757 // the putIntForUser() will fail. 2758 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2759 android.provider.Settings.Secure.LOCATION_MODE, 2760 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2761 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2762 } finally { 2763 Binder.restoreCallingIdentity(identity); 2764 } 2765 return user; 2766 } 2767 2768 /** 2769 * Find the current guest user. If the Guest user is partial, 2770 * then do not include it in the results as it is about to die. 2771 */ 2772 private UserInfo findCurrentGuestUser() { 2773 synchronized (mUsersLock) { 2774 final int size = mUsers.size(); 2775 for (int i = 0; i < size; i++) { 2776 final UserInfo user = mUsers.valueAt(i).info; 2777 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2778 return user; 2779 } 2780 } 2781 } 2782 return null; 2783 } 2784 2785 /** 2786 * Mark this guest user for deletion to allow us to create another guest 2787 * and switch to that user before actually removing this guest. 2788 * @param userHandle the userid of the current guest 2789 * @return whether the user could be marked for deletion 2790 */ 2791 @Override 2792 public boolean markGuestForDeletion(int userHandle) { 2793 checkManageUsersPermission("Only the system can remove users"); 2794 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2795 UserManager.DISALLOW_REMOVE_USER, false)) { 2796 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2797 return false; 2798 } 2799 2800 long ident = Binder.clearCallingIdentity(); 2801 try { 2802 final UserData userData; 2803 synchronized (mPackagesLock) { 2804 synchronized (mUsersLock) { 2805 userData = mUsers.get(userHandle); 2806 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2807 return false; 2808 } 2809 } 2810 if (!userData.info.isGuest()) { 2811 return false; 2812 } 2813 // We set this to a guest user that is to be removed. This is a temporary state 2814 // where we are allowed to add new Guest users, even if this one is still not 2815 // removed. This user will still show up in getUserInfo() calls. 2816 // If we don't get around to removing this Guest user, it will be purged on next 2817 // startup. 2818 userData.info.guestToRemove = true; 2819 // Mark it as disabled, so that it isn't returned any more when 2820 // profiles are queried. 2821 userData.info.flags |= UserInfo.FLAG_DISABLED; 2822 writeUserLP(userData); 2823 } 2824 } finally { 2825 Binder.restoreCallingIdentity(ident); 2826 } 2827 return true; 2828 } 2829 2830 /** 2831 * Removes a user and all data directories created for that user. This method should be called 2832 * after the user's processes have been terminated. 2833 * @param userHandle the user's id 2834 */ 2835 @Override 2836 public boolean removeUser(int userHandle) { 2837 Slog.i(LOG_TAG, "removeUser u" + userHandle); 2838 checkManageOrCreateUsersPermission("Only the system can remove users"); 2839 2840 final boolean isManagedProfile; 2841 synchronized (mUsersLock) { 2842 UserInfo userInfo = getUserInfoLU(userHandle); 2843 isManagedProfile = userInfo != null && userInfo.isManagedProfile(); 2844 } 2845 String restriction = isManagedProfile 2846 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE : UserManager.DISALLOW_REMOVE_USER; 2847 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean(restriction, false)) { 2848 Log.w(LOG_TAG, "Cannot remove user. " + restriction + " is enabled."); 2849 return false; 2850 } 2851 return removeUserUnchecked(userHandle); 2852 } 2853 2854 private boolean removeUserUnchecked(int userHandle) { 2855 long ident = Binder.clearCallingIdentity(); 2856 try { 2857 final UserData userData; 2858 int currentUser = ActivityManager.getCurrentUser(); 2859 if (currentUser == userHandle) { 2860 Log.w(LOG_TAG, "Current user cannot be removed"); 2861 return false; 2862 } 2863 synchronized (mPackagesLock) { 2864 synchronized (mUsersLock) { 2865 userData = mUsers.get(userHandle); 2866 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2867 return false; 2868 } 2869 2870 addRemovingUserIdLocked(userHandle); 2871 } 2872 2873 // Set this to a partially created user, so that the user will be purged 2874 // on next startup, in case the runtime stops now before stopping and 2875 // removing the user completely. 2876 userData.info.partial = true; 2877 // Mark it as disabled, so that it isn't returned any more when 2878 // profiles are queried. 2879 userData.info.flags |= UserInfo.FLAG_DISABLED; 2880 writeUserLP(userData); 2881 } 2882 try { 2883 mAppOpsService.removeUser(userHandle); 2884 } catch (RemoteException e) { 2885 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2886 } 2887 2888 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2889 && userData.info.isManagedProfile()) { 2890 // Send broadcast to notify system that the user removed was a 2891 // managed user. 2892 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2893 } 2894 2895 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2896 int res; 2897 try { 2898 res = ActivityManager.getService().stopUser(userHandle, /* force= */ true, 2899 new IStopUserCallback.Stub() { 2900 @Override 2901 public void userStopped(int userId) { 2902 finishRemoveUser(userId); 2903 } 2904 @Override 2905 public void userStopAborted(int userId) { 2906 } 2907 }); 2908 } catch (RemoteException e) { 2909 return false; 2910 } 2911 return res == ActivityManager.USER_OP_SUCCESS; 2912 } finally { 2913 Binder.restoreCallingIdentity(ident); 2914 } 2915 } 2916 2917 @GuardedBy("mUsersLock") 2918 @VisibleForTesting 2919 void addRemovingUserIdLocked(int userId) { 2920 // We remember deleted user IDs to prevent them from being 2921 // reused during the current boot; they can still be reused 2922 // after a reboot or recycling of userIds. 2923 mRemovingUserIds.put(userId, true); 2924 mRecentlyRemovedIds.add(userId); 2925 // Keep LRU queue of recently removed IDs for recycling 2926 if (mRecentlyRemovedIds.size() > MAX_RECENTLY_REMOVED_IDS_SIZE) { 2927 mRecentlyRemovedIds.removeFirst(); 2928 } 2929 } 2930 2931 void finishRemoveUser(final int userHandle) { 2932 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2933 // Let other services shutdown any activity and clean up their state before completely 2934 // wiping the user's system directory and removing from the user list 2935 long ident = Binder.clearCallingIdentity(); 2936 try { 2937 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2938 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2939 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2940 android.Manifest.permission.MANAGE_USERS, 2941 2942 new BroadcastReceiver() { 2943 @Override 2944 public void onReceive(Context context, Intent intent) { 2945 if (DBG) { 2946 Slog.i(LOG_TAG, 2947 "USER_REMOVED broadcast sent, cleaning up user data " 2948 + userHandle); 2949 } 2950 new Thread() { 2951 @Override 2952 public void run() { 2953 // Clean up any ActivityManager state 2954 LocalServices.getService(ActivityManagerInternal.class) 2955 .onUserRemoved(userHandle); 2956 removeUserState(userHandle); 2957 } 2958 }.start(); 2959 } 2960 }, 2961 2962 null, Activity.RESULT_OK, null, null); 2963 } finally { 2964 Binder.restoreCallingIdentity(ident); 2965 } 2966 } 2967 2968 private void removeUserState(final int userHandle) { 2969 try { 2970 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2971 } catch (IllegalStateException e) { 2972 // This may be simply because the user was partially created. 2973 Slog.i(LOG_TAG, 2974 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2975 } 2976 2977 // Cleanup gatekeeper secure user id 2978 try { 2979 final IGateKeeperService gk = GateKeeper.getService(); 2980 if (gk != null) { 2981 gk.clearSecureUserId(userHandle); 2982 } 2983 } catch (Exception ex) { 2984 Slog.w(LOG_TAG, "unable to clear GK secure user id"); 2985 } 2986 2987 // Cleanup package manager settings 2988 mPm.cleanUpUser(this, userHandle); 2989 2990 // Clean up all data before removing metadata 2991 mUserDataPreparer.destroyUserData(userHandle, 2992 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2993 2994 // Remove this user from the list 2995 synchronized (mUsersLock) { 2996 mUsers.remove(userHandle); 2997 mIsUserManaged.delete(userHandle); 2998 } 2999 synchronized (mUserStates) { 3000 mUserStates.delete(userHandle); 3001 } 3002 synchronized (mRestrictionsLock) { 3003 mBaseUserRestrictions.remove(userHandle); 3004 mAppliedUserRestrictions.remove(userHandle); 3005 mCachedEffectiveUserRestrictions.remove(userHandle); 3006 mDevicePolicyLocalUserRestrictions.remove(userHandle); 3007 if (mDevicePolicyGlobalUserRestrictions.get(userHandle) != null) { 3008 mDevicePolicyGlobalUserRestrictions.remove(userHandle); 3009 applyUserRestrictionsForAllUsersLR(); 3010 } 3011 } 3012 // Update the user list 3013 synchronized (mPackagesLock) { 3014 writeUserListLP(); 3015 } 3016 // Remove user file 3017 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 3018 userFile.delete(); 3019 updateUserIds(); 3020 if (RELEASE_DELETED_USER_ID) { 3021 synchronized (mUsers) { 3022 mRemovingUserIds.delete(userHandle); 3023 } 3024 } 3025 } 3026 3027 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 3028 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 3029 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 3030 Intent.FLAG_RECEIVER_FOREGROUND); 3031 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 3032 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 3033 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 3034 } 3035 3036 @Override 3037 public Bundle getApplicationRestrictions(String packageName) { 3038 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 3039 } 3040 3041 @Override 3042 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 3043 if (UserHandle.getCallingUserId() != userId 3044 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 3045 checkSystemOrRoot("get application restrictions for other user/app " + packageName); 3046 } 3047 synchronized (mAppRestrictionsLock) { 3048 // Read the restrictions from XML 3049 return readApplicationRestrictionsLAr(packageName, userId); 3050 } 3051 } 3052 3053 @Override 3054 public void setApplicationRestrictions(String packageName, Bundle restrictions, 3055 int userId) { 3056 checkSystemOrRoot("set application restrictions"); 3057 if (restrictions != null) { 3058 restrictions.setDefusable(true); 3059 } 3060 synchronized (mAppRestrictionsLock) { 3061 if (restrictions == null || restrictions.isEmpty()) { 3062 cleanAppRestrictionsForPackageLAr(packageName, userId); 3063 } else { 3064 // Write the restrictions to XML 3065 writeApplicationRestrictionsLAr(packageName, restrictions, userId); 3066 } 3067 } 3068 3069 // Notify package of changes via an intent - only sent to explicitly registered receivers. 3070 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 3071 changeIntent.setPackage(packageName); 3072 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 3073 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 3074 } 3075 3076 private int getUidForPackage(String packageName) { 3077 long ident = Binder.clearCallingIdentity(); 3078 try { 3079 return mContext.getPackageManager().getApplicationInfo(packageName, 3080 PackageManager.MATCH_ANY_USER).uid; 3081 } catch (NameNotFoundException nnfe) { 3082 return -1; 3083 } finally { 3084 Binder.restoreCallingIdentity(ident); 3085 } 3086 } 3087 3088 @GuardedBy("mAppRestrictionsLock") 3089 private static Bundle readApplicationRestrictionsLAr(String packageName, int userId) { 3090 AtomicFile restrictionsFile = 3091 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 3092 packageToRestrictionsFileName(packageName))); 3093 return readApplicationRestrictionsLAr(restrictionsFile); 3094 } 3095 3096 @VisibleForTesting 3097 @GuardedBy("mAppRestrictionsLock") 3098 static Bundle readApplicationRestrictionsLAr(AtomicFile restrictionsFile) { 3099 final Bundle restrictions = new Bundle(); 3100 final ArrayList<String> values = new ArrayList<>(); 3101 if (!restrictionsFile.getBaseFile().exists()) { 3102 return restrictions; 3103 } 3104 3105 FileInputStream fis = null; 3106 try { 3107 fis = restrictionsFile.openRead(); 3108 XmlPullParser parser = Xml.newPullParser(); 3109 parser.setInput(fis, StandardCharsets.UTF_8.name()); 3110 XmlUtils.nextElement(parser); 3111 if (parser.getEventType() != XmlPullParser.START_TAG) { 3112 Slog.e(LOG_TAG, "Unable to read restrictions file " 3113 + restrictionsFile.getBaseFile()); 3114 return restrictions; 3115 } 3116 while (parser.next() != XmlPullParser.END_DOCUMENT) { 3117 readEntry(restrictions, values, parser); 3118 } 3119 } catch (IOException|XmlPullParserException e) { 3120 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 3121 } finally { 3122 IoUtils.closeQuietly(fis); 3123 } 3124 return restrictions; 3125 } 3126 3127 private static void readEntry(Bundle restrictions, ArrayList<String> values, 3128 XmlPullParser parser) throws XmlPullParserException, IOException { 3129 int type = parser.getEventType(); 3130 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 3131 String key = parser.getAttributeValue(null, ATTR_KEY); 3132 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 3133 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 3134 if (multiple != null) { 3135 values.clear(); 3136 int count = Integer.parseInt(multiple); 3137 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 3138 if (type == XmlPullParser.START_TAG 3139 && parser.getName().equals(TAG_VALUE)) { 3140 values.add(parser.nextText().trim()); 3141 count--; 3142 } 3143 } 3144 String [] valueStrings = new String[values.size()]; 3145 values.toArray(valueStrings); 3146 restrictions.putStringArray(key, valueStrings); 3147 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 3148 restrictions.putBundle(key, readBundleEntry(parser, values)); 3149 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 3150 final int outerDepth = parser.getDepth(); 3151 ArrayList<Bundle> bundleList = new ArrayList<>(); 3152 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 3153 Bundle childBundle = readBundleEntry(parser, values); 3154 bundleList.add(childBundle); 3155 } 3156 restrictions.putParcelableArray(key, 3157 bundleList.toArray(new Bundle[bundleList.size()])); 3158 } else { 3159 String value = parser.nextText().trim(); 3160 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 3161 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 3162 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 3163 restrictions.putInt(key, Integer.parseInt(value)); 3164 } else { 3165 restrictions.putString(key, value); 3166 } 3167 } 3168 } 3169 } 3170 3171 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 3172 throws IOException, XmlPullParserException { 3173 Bundle childBundle = new Bundle(); 3174 final int outerDepth = parser.getDepth(); 3175 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 3176 readEntry(childBundle, values, parser); 3177 } 3178 return childBundle; 3179 } 3180 3181 @GuardedBy("mAppRestrictionsLock") 3182 private static void writeApplicationRestrictionsLAr(String packageName, 3183 Bundle restrictions, int userId) { 3184 AtomicFile restrictionsFile = new AtomicFile( 3185 new File(Environment.getUserSystemDirectory(userId), 3186 packageToRestrictionsFileName(packageName))); 3187 writeApplicationRestrictionsLAr(restrictions, restrictionsFile); 3188 } 3189 3190 @VisibleForTesting 3191 @GuardedBy("mAppRestrictionsLock") 3192 static void writeApplicationRestrictionsLAr(Bundle restrictions, AtomicFile restrictionsFile) { 3193 FileOutputStream fos = null; 3194 try { 3195 fos = restrictionsFile.startWrite(); 3196 final BufferedOutputStream bos = new BufferedOutputStream(fos); 3197 3198 final XmlSerializer serializer = new FastXmlSerializer(); 3199 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 3200 serializer.startDocument(null, true); 3201 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 3202 3203 serializer.startTag(null, TAG_RESTRICTIONS); 3204 writeBundle(restrictions, serializer); 3205 serializer.endTag(null, TAG_RESTRICTIONS); 3206 3207 serializer.endDocument(); 3208 restrictionsFile.finishWrite(fos); 3209 } catch (Exception e) { 3210 restrictionsFile.failWrite(fos); 3211 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 3212 } 3213 } 3214 3215 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 3216 throws IOException { 3217 for (String key : restrictions.keySet()) { 3218 Object value = restrictions.get(key); 3219 serializer.startTag(null, TAG_ENTRY); 3220 serializer.attribute(null, ATTR_KEY, key); 3221 3222 if (value instanceof Boolean) { 3223 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 3224 serializer.text(value.toString()); 3225 } else if (value instanceof Integer) { 3226 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 3227 serializer.text(value.toString()); 3228 } else if (value == null || value instanceof String) { 3229 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 3230 serializer.text(value != null ? (String) value : ""); 3231 } else if (value instanceof Bundle) { 3232 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3233 writeBundle((Bundle) value, serializer); 3234 } else if (value instanceof Parcelable[]) { 3235 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 3236 Parcelable[] array = (Parcelable[]) value; 3237 for (Parcelable parcelable : array) { 3238 if (!(parcelable instanceof Bundle)) { 3239 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 3240 } 3241 serializer.startTag(null, TAG_ENTRY); 3242 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3243 writeBundle((Bundle) parcelable, serializer); 3244 serializer.endTag(null, TAG_ENTRY); 3245 } 3246 } else { 3247 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 3248 String[] values = (String[]) value; 3249 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 3250 for (String choice : values) { 3251 serializer.startTag(null, TAG_VALUE); 3252 serializer.text(choice != null ? choice : ""); 3253 serializer.endTag(null, TAG_VALUE); 3254 } 3255 } 3256 serializer.endTag(null, TAG_ENTRY); 3257 } 3258 } 3259 3260 @Override 3261 public int getUserSerialNumber(int userHandle) { 3262 synchronized (mUsersLock) { 3263 if (!exists(userHandle)) return -1; 3264 return getUserInfoLU(userHandle).serialNumber; 3265 } 3266 } 3267 3268 @Override 3269 public boolean isUserNameSet(int userHandle) { 3270 synchronized (mUsersLock) { 3271 UserInfo userInfo = getUserInfoLU(userHandle); 3272 return userInfo != null && userInfo.name != null; 3273 } 3274 } 3275 3276 @Override 3277 public int getUserHandle(int userSerialNumber) { 3278 synchronized (mUsersLock) { 3279 for (int userId : mUserIds) { 3280 UserInfo info = getUserInfoLU(userId); 3281 if (info != null && info.serialNumber == userSerialNumber) return userId; 3282 } 3283 // Not found 3284 return -1; 3285 } 3286 } 3287 3288 @Override 3289 public long getUserCreationTime(int userHandle) { 3290 int callingUserId = UserHandle.getCallingUserId(); 3291 UserInfo userInfo = null; 3292 synchronized (mUsersLock) { 3293 if (callingUserId == userHandle) { 3294 userInfo = getUserInfoLU(userHandle); 3295 } else { 3296 UserInfo parent = getProfileParentLU(userHandle); 3297 if (parent != null && parent.id == callingUserId) { 3298 userInfo = getUserInfoLU(userHandle); 3299 } 3300 } 3301 } 3302 if (userInfo == null) { 3303 throw new SecurityException("userHandle can only be the calling user or a managed " 3304 + "profile associated with this user"); 3305 } 3306 return userInfo.creationTime; 3307 } 3308 3309 /** 3310 * Caches the list of user ids in an array, adjusting the array size when necessary. 3311 */ 3312 private void updateUserIds() { 3313 int num = 0; 3314 synchronized (mUsersLock) { 3315 final int userSize = mUsers.size(); 3316 for (int i = 0; i < userSize; i++) { 3317 if (!mUsers.valueAt(i).info.partial) { 3318 num++; 3319 } 3320 } 3321 final int[] newUsers = new int[num]; 3322 int n = 0; 3323 for (int i = 0; i < userSize; i++) { 3324 if (!mUsers.valueAt(i).info.partial) { 3325 newUsers[n++] = mUsers.keyAt(i); 3326 } 3327 } 3328 mUserIds = newUsers; 3329 } 3330 } 3331 3332 /** 3333 * Called right before a user is started. This gives us a chance to prepare 3334 * app storage and apply any user restrictions. 3335 */ 3336 public void onBeforeStartUser(int userId) { 3337 UserInfo userInfo = getUserInfo(userId); 3338 if (userInfo == null) { 3339 return; 3340 } 3341 final int userSerial = userInfo.serialNumber; 3342 // Migrate only if build fingerprints mismatch 3343 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3344 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 3345 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE, migrateAppsData); 3346 3347 if (userId != UserHandle.USER_SYSTEM) { 3348 synchronized (mRestrictionsLock) { 3349 applyUserRestrictionsLR(userId); 3350 } 3351 } 3352 } 3353 3354 /** 3355 * Called right before a user is unlocked. This gives us a chance to prepare 3356 * app storage. 3357 */ 3358 public void onBeforeUnlockUser(@UserIdInt int userId) { 3359 UserInfo userInfo = getUserInfo(userId); 3360 if (userInfo == null) { 3361 return; 3362 } 3363 final int userSerial = userInfo.serialNumber; 3364 // Migrate only if build fingerprints mismatch 3365 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3366 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 3367 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE, migrateAppsData); 3368 } 3369 3370 /** 3371 * Examine all users present on given mounted volume, and destroy data 3372 * belonging to users that are no longer valid, or whose user ID has been 3373 * recycled. 3374 */ 3375 void reconcileUsers(String volumeUuid) { 3376 mUserDataPreparer.reconcileUsers(volumeUuid, getUsers(true /* excludeDying */)); 3377 } 3378 3379 /** 3380 * Make a note of the last started time of a user and do some cleanup. 3381 * This is called with ActivityManagerService lock held. 3382 * @param userId the user that was just foregrounded 3383 */ 3384 public void onUserLoggedIn(@UserIdInt int userId) { 3385 UserData userData = getUserDataNoChecks(userId); 3386 if (userData == null || userData.info.partial) { 3387 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 3388 return; 3389 } 3390 3391 final long now = System.currentTimeMillis(); 3392 if (now > EPOCH_PLUS_30_YEARS) { 3393 userData.info.lastLoggedInTime = now; 3394 } 3395 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 3396 scheduleWriteUser(userData); 3397 } 3398 3399 /** 3400 * Returns the next available user id, filling in any holes in the ids. 3401 */ 3402 @VisibleForTesting 3403 int getNextAvailableId() { 3404 int nextId; 3405 synchronized (mUsersLock) { 3406 nextId = scanNextAvailableIdLocked(); 3407 if (nextId >= 0) { 3408 return nextId; 3409 } 3410 // All ids up to MAX_USER_ID were used. Remove all mRemovingUserIds, 3411 // except most recently removed 3412 if (mRemovingUserIds.size() > 0) { 3413 Slog.i(LOG_TAG, "All available IDs are used. Recycling LRU ids."); 3414 mRemovingUserIds.clear(); 3415 for (Integer recentlyRemovedId : mRecentlyRemovedIds) { 3416 mRemovingUserIds.put(recentlyRemovedId, true); 3417 } 3418 nextId = scanNextAvailableIdLocked(); 3419 } 3420 } 3421 if (nextId < 0) { 3422 throw new IllegalStateException("No user id available!"); 3423 } 3424 return nextId; 3425 } 3426 3427 @GuardedBy("mUsersLock") 3428 private int scanNextAvailableIdLocked() { 3429 for (int i = MIN_USER_ID; i < MAX_USER_ID; i++) { 3430 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 3431 return i; 3432 } 3433 } 3434 return -1; 3435 } 3436 3437 private static String packageToRestrictionsFileName(String packageName) { 3438 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 3439 } 3440 3441 @Override 3442 public void setSeedAccountData(int userId, String accountName, String accountType, 3443 PersistableBundle accountOptions, boolean persist) { 3444 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 3445 synchronized (mPackagesLock) { 3446 final UserData userData; 3447 synchronized (mUsersLock) { 3448 userData = getUserDataLU(userId); 3449 if (userData == null) { 3450 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 3451 return; 3452 } 3453 userData.seedAccountName = accountName; 3454 userData.seedAccountType = accountType; 3455 userData.seedAccountOptions = accountOptions; 3456 userData.persistSeedData = persist; 3457 } 3458 if (persist) { 3459 writeUserLP(userData); 3460 } 3461 } 3462 } 3463 3464 @Override 3465 public String getSeedAccountName() throws RemoteException { 3466 checkManageUsersPermission("Cannot get seed account information"); 3467 synchronized (mUsersLock) { 3468 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3469 return userData.seedAccountName; 3470 } 3471 } 3472 3473 @Override 3474 public String getSeedAccountType() throws RemoteException { 3475 checkManageUsersPermission("Cannot get seed account information"); 3476 synchronized (mUsersLock) { 3477 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3478 return userData.seedAccountType; 3479 } 3480 } 3481 3482 @Override 3483 public PersistableBundle getSeedAccountOptions() throws RemoteException { 3484 checkManageUsersPermission("Cannot get seed account information"); 3485 synchronized (mUsersLock) { 3486 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3487 return userData.seedAccountOptions; 3488 } 3489 } 3490 3491 @Override 3492 public void clearSeedAccountData() throws RemoteException { 3493 checkManageUsersPermission("Cannot clear seed account information"); 3494 synchronized (mPackagesLock) { 3495 UserData userData; 3496 synchronized (mUsersLock) { 3497 userData = getUserDataLU(UserHandle.getCallingUserId()); 3498 if (userData == null) return; 3499 userData.clearSeedAccountData(); 3500 } 3501 writeUserLP(userData); 3502 } 3503 } 3504 3505 @Override 3506 public boolean someUserHasSeedAccount(String accountName, String accountType) 3507 throws RemoteException { 3508 checkManageUsersPermission("Cannot check seed account information"); 3509 synchronized (mUsersLock) { 3510 final int userSize = mUsers.size(); 3511 for (int i = 0; i < userSize; i++) { 3512 final UserData data = mUsers.valueAt(i); 3513 if (data.info.isInitialized()) continue; 3514 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 3515 continue; 3516 } 3517 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 3518 continue; 3519 } 3520 return true; 3521 } 3522 } 3523 return false; 3524 } 3525 3526 @Override 3527 public void onShellCommand(FileDescriptor in, FileDescriptor out, 3528 FileDescriptor err, String[] args, ShellCallback callback, 3529 ResultReceiver resultReceiver) { 3530 (new Shell()).exec(this, in, out, err, args, callback, resultReceiver); 3531 } 3532 3533 int onShellCommand(Shell shell, String cmd) { 3534 if (cmd == null) { 3535 return shell.handleDefaultCommands(cmd); 3536 } 3537 3538 final PrintWriter pw = shell.getOutPrintWriter(); 3539 try { 3540 switch(cmd) { 3541 case "list": 3542 return runList(pw); 3543 } 3544 } catch (RemoteException e) { 3545 pw.println("Remote exception: " + e); 3546 } 3547 return -1; 3548 } 3549 3550 private int runList(PrintWriter pw) throws RemoteException { 3551 final IActivityManager am = ActivityManager.getService(); 3552 final List<UserInfo> users = getUsers(false); 3553 if (users == null) { 3554 pw.println("Error: couldn't get users"); 3555 return 1; 3556 } else { 3557 pw.println("Users:"); 3558 for (int i = 0; i < users.size(); i++) { 3559 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 3560 pw.println("\t" + users.get(i).toString() + running); 3561 } 3562 return 0; 3563 } 3564 } 3565 3566 @Override 3567 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3568 if (!DumpUtils.checkDumpPermission(mContext, LOG_TAG, pw)) return; 3569 3570 long now = System.currentTimeMillis(); 3571 final long nowRealtime = SystemClock.elapsedRealtime(); 3572 StringBuilder sb = new StringBuilder(); 3573 synchronized (mPackagesLock) { 3574 synchronized (mUsersLock) { 3575 pw.println("Users:"); 3576 for (int i = 0; i < mUsers.size(); i++) { 3577 UserData userData = mUsers.valueAt(i); 3578 if (userData == null) { 3579 continue; 3580 } 3581 UserInfo userInfo = userData.info; 3582 final int userId = userInfo.id; 3583 pw.print(" "); pw.print(userInfo); 3584 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 3585 if (mRemovingUserIds.get(userId)) { 3586 pw.print(" <removing> "); 3587 } 3588 if (userInfo.partial) { 3589 pw.print(" <partial>"); 3590 } 3591 pw.println(); 3592 pw.print(" State: "); 3593 final int state; 3594 synchronized (mUserStates) { 3595 state = mUserStates.get(userId, -1); 3596 } 3597 pw.println(UserState.stateToString(state)); 3598 pw.print(" Created: "); 3599 dumpTimeAgo(pw, sb, now, userInfo.creationTime); 3600 3601 pw.print(" Last logged in: "); 3602 dumpTimeAgo(pw, sb, now, userInfo.lastLoggedInTime); 3603 3604 pw.print(" Last logged in fingerprint: "); 3605 pw.println(userInfo.lastLoggedInFingerprint); 3606 3607 pw.print(" Start time: "); 3608 dumpTimeAgo(pw, sb, nowRealtime, userData.startRealtime); 3609 3610 pw.print(" Unlock time: "); 3611 dumpTimeAgo(pw, sb, nowRealtime, userData.unlockRealtime); 3612 3613 pw.print(" Has profile owner: "); 3614 pw.println(mIsUserManaged.get(userId)); 3615 pw.println(" Restrictions:"); 3616 synchronized (mRestrictionsLock) { 3617 UserRestrictionsUtils.dumpRestrictions( 3618 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 3619 pw.println(" Device policy global restrictions:"); 3620 UserRestrictionsUtils.dumpRestrictions( 3621 pw, " ", mDevicePolicyGlobalUserRestrictions.get(userInfo.id)); 3622 pw.println(" Device policy local restrictions:"); 3623 UserRestrictionsUtils.dumpRestrictions( 3624 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 3625 pw.println(" Effective restrictions:"); 3626 UserRestrictionsUtils.dumpRestrictions( 3627 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 3628 } 3629 3630 if (userData.account != null) { 3631 pw.print(" Account name: " + userData.account); 3632 pw.println(); 3633 } 3634 3635 if (userData.seedAccountName != null) { 3636 pw.print(" Seed account name: " + userData.seedAccountName); 3637 pw.println(); 3638 if (userData.seedAccountType != null) { 3639 pw.print(" account type: " + userData.seedAccountType); 3640 pw.println(); 3641 } 3642 if (userData.seedAccountOptions != null) { 3643 pw.print(" account options exist"); 3644 pw.println(); 3645 } 3646 } 3647 } 3648 } 3649 pw.println(); 3650 pw.println(" Device owner id:" + mDeviceOwnerUserId); 3651 pw.println(); 3652 pw.println(" Guest restrictions:"); 3653 synchronized (mGuestRestrictions) { 3654 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 3655 } 3656 synchronized (mUsersLock) { 3657 pw.println(); 3658 pw.println(" Device managed: " + mIsDeviceManaged); 3659 if (mRemovingUserIds.size() > 0) { 3660 pw.println(); 3661 pw.println(" Recently removed userIds: " + mRecentlyRemovedIds); 3662 } 3663 } 3664 synchronized (mUserStates) { 3665 pw.println(" Started users state: " + mUserStates); 3666 } 3667 // Dump some capabilities 3668 pw.println(); 3669 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 3670 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 3671 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 3672 com.android.internal.R.bool.config_guestUserEphemeral)); 3673 } 3674 } 3675 3676 private static void dumpTimeAgo(PrintWriter pw, StringBuilder sb, long nowTime, long time) { 3677 if (time == 0) { 3678 pw.println("<unknown>"); 3679 } else { 3680 sb.setLength(0); 3681 TimeUtils.formatDuration(nowTime - time, sb); 3682 sb.append(" ago"); 3683 pw.println(sb); 3684 } 3685 } 3686 3687 final class MainHandler extends Handler { 3688 3689 @Override 3690 public void handleMessage(Message msg) { 3691 switch (msg.what) { 3692 case WRITE_USER_MSG: 3693 removeMessages(WRITE_USER_MSG, msg.obj); 3694 synchronized (mPackagesLock) { 3695 int userId = ((UserData) msg.obj).info.id; 3696 UserData userData = getUserDataNoChecks(userId); 3697 if (userData != null) { 3698 writeUserLP(userData); 3699 } 3700 } 3701 } 3702 } 3703 } 3704 3705 /** 3706 * @param userId 3707 * @return whether the user has been initialized yet 3708 */ 3709 boolean isUserInitialized(int userId) { 3710 return mLocalService.isUserInitialized(userId); 3711 } 3712 3713 private class LocalService extends UserManagerInternal { 3714 @Override 3715 public void setDevicePolicyUserRestrictions(int userId, @Nullable Bundle restrictions, 3716 boolean isDeviceOwner, int cameraRestrictionScope) { 3717 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, restrictions, 3718 isDeviceOwner, cameraRestrictionScope); 3719 } 3720 3721 @Override 3722 public Bundle getBaseUserRestrictions(int userId) { 3723 synchronized (mRestrictionsLock) { 3724 return mBaseUserRestrictions.get(userId); 3725 } 3726 } 3727 3728 @Override 3729 public void setBaseUserRestrictionsByDpmsForMigration( 3730 int userId, Bundle baseRestrictions) { 3731 synchronized (mRestrictionsLock) { 3732 if (updateRestrictionsIfNeededLR( 3733 userId, new Bundle(baseRestrictions), mBaseUserRestrictions)) { 3734 invalidateEffectiveUserRestrictionsLR(userId); 3735 } 3736 } 3737 3738 final UserData userData = getUserDataNoChecks(userId); 3739 synchronized (mPackagesLock) { 3740 if (userData != null) { 3741 writeUserLP(userData); 3742 } else { 3743 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3744 } 3745 } 3746 } 3747 3748 @Override 3749 public boolean getUserRestriction(int userId, String key) { 3750 return getUserRestrictions(userId).getBoolean(key); 3751 } 3752 3753 @Override 3754 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3755 synchronized (mUserRestrictionsListeners) { 3756 mUserRestrictionsListeners.add(listener); 3757 } 3758 } 3759 3760 @Override 3761 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3762 synchronized (mUserRestrictionsListeners) { 3763 mUserRestrictionsListeners.remove(listener); 3764 } 3765 } 3766 3767 @Override 3768 public void setDeviceManaged(boolean isManaged) { 3769 synchronized (mUsersLock) { 3770 mIsDeviceManaged = isManaged; 3771 } 3772 } 3773 3774 @Override 3775 public void setUserManaged(int userId, boolean isManaged) { 3776 synchronized (mUsersLock) { 3777 mIsUserManaged.put(userId, isManaged); 3778 } 3779 } 3780 3781 @Override 3782 public void setUserIcon(int userId, Bitmap bitmap) { 3783 long ident = Binder.clearCallingIdentity(); 3784 try { 3785 synchronized (mPackagesLock) { 3786 UserData userData = getUserDataNoChecks(userId); 3787 if (userData == null || userData.info.partial) { 3788 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3789 return; 3790 } 3791 writeBitmapLP(userData.info, bitmap); 3792 writeUserLP(userData); 3793 } 3794 sendUserInfoChangedBroadcast(userId); 3795 } finally { 3796 Binder.restoreCallingIdentity(ident); 3797 } 3798 } 3799 3800 @Override 3801 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3802 synchronized (mUsersLock) { 3803 mForceEphemeralUsers = forceEphemeralUsers; 3804 } 3805 } 3806 3807 @Override 3808 public void removeAllUsers() { 3809 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3810 // Remove the non-system users straight away. 3811 removeNonSystemUsers(); 3812 } else { 3813 // Switch to the system user first and then remove the other users. 3814 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3815 @Override 3816 public void onReceive(Context context, Intent intent) { 3817 int userId = 3818 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3819 if (userId != UserHandle.USER_SYSTEM) { 3820 return; 3821 } 3822 mContext.unregisterReceiver(this); 3823 removeNonSystemUsers(); 3824 } 3825 }; 3826 IntentFilter userSwitchedFilter = new IntentFilter(); 3827 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3828 mContext.registerReceiver( 3829 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3830 3831 // Switch to the system user. 3832 ActivityManager am = 3833 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3834 am.switchUser(UserHandle.USER_SYSTEM); 3835 } 3836 } 3837 3838 @Override 3839 public void onEphemeralUserStop(int userId) { 3840 synchronized (mUsersLock) { 3841 UserInfo userInfo = getUserInfoLU(userId); 3842 if (userInfo != null && userInfo.isEphemeral()) { 3843 // Do not allow switching back to the ephemeral user again as the user is going 3844 // to be deleted. 3845 userInfo.flags |= UserInfo.FLAG_DISABLED; 3846 if (userInfo.isGuest()) { 3847 // Indicate that the guest will be deleted after it stops. 3848 userInfo.guestToRemove = true; 3849 } 3850 } 3851 } 3852 } 3853 3854 @Override 3855 public UserInfo createUserEvenWhenDisallowed(String name, int flags, 3856 String[] disallowedPackages) { 3857 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL, 3858 disallowedPackages); 3859 // Keep this in sync with UserManager.createUser 3860 if (user != null && !user.isAdmin() && !user.isDemo()) { 3861 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3862 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3863 } 3864 return user; 3865 } 3866 3867 @Override 3868 public boolean removeUserEvenWhenDisallowed(int userId) { 3869 return removeUserUnchecked(userId); 3870 } 3871 3872 @Override 3873 public boolean isUserRunning(int userId) { 3874 synchronized (mUserStates) { 3875 return mUserStates.get(userId, -1) >= 0; 3876 } 3877 } 3878 3879 @Override 3880 public void setUserState(int userId, int userState) { 3881 synchronized (mUserStates) { 3882 mUserStates.put(userId, userState); 3883 } 3884 } 3885 3886 @Override 3887 public void removeUserState(int userId) { 3888 synchronized (mUserStates) { 3889 mUserStates.delete(userId); 3890 } 3891 } 3892 3893 @Override 3894 public int[] getUserIds() { 3895 return UserManagerService.this.getUserIds(); 3896 } 3897 3898 @Override 3899 public boolean isUserUnlockingOrUnlocked(int userId) { 3900 int state; 3901 synchronized (mUserStates) { 3902 state = mUserStates.get(userId, -1); 3903 } 3904 // Special case, in the stopping/shutdown state user key can still be unlocked 3905 if (state == UserState.STATE_STOPPING || state == UserState.STATE_SHUTDOWN) { 3906 return StorageManager.isUserKeyUnlocked(userId); 3907 } 3908 return (state == UserState.STATE_RUNNING_UNLOCKING) 3909 || (state == UserState.STATE_RUNNING_UNLOCKED); 3910 } 3911 3912 @Override 3913 public boolean isUserUnlocked(int userId) { 3914 int state; 3915 synchronized (mUserStates) { 3916 state = mUserStates.get(userId, -1); 3917 } 3918 // Special case, in the stopping/shutdown state user key can still be unlocked 3919 if (state == UserState.STATE_STOPPING || state == UserState.STATE_SHUTDOWN) { 3920 return StorageManager.isUserKeyUnlocked(userId); 3921 } 3922 return state == UserState.STATE_RUNNING_UNLOCKED; 3923 } 3924 3925 @Override 3926 public boolean isUserInitialized(int userId) { 3927 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3928 } 3929 3930 @Override 3931 public boolean exists(int userId) { 3932 return getUserInfoNoChecks(userId) != null; 3933 } 3934 } 3935 3936 /* Remove all the users except of the system one. */ 3937 private void removeNonSystemUsers() { 3938 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3939 synchronized (mUsersLock) { 3940 final int userSize = mUsers.size(); 3941 for (int i = 0; i < userSize; i++) { 3942 UserInfo ui = mUsers.valueAt(i).info; 3943 if (ui.id != UserHandle.USER_SYSTEM) { 3944 usersToRemove.add(ui); 3945 } 3946 } 3947 } 3948 for (UserInfo ui: usersToRemove) { 3949 removeUser(ui.id); 3950 } 3951 } 3952 3953 private class Shell extends ShellCommand { 3954 @Override 3955 public int onCommand(String cmd) { 3956 return onShellCommand(this, cmd); 3957 } 3958 3959 @Override 3960 public void onHelp() { 3961 final PrintWriter pw = getOutPrintWriter(); 3962 pw.println("User manager (user) commands:"); 3963 pw.println(" help"); 3964 pw.println(" Print this help text."); 3965 pw.println(""); 3966 pw.println(" list"); 3967 pw.println(" Prints all users on the system."); 3968 } 3969 } 3970 3971 private static void debug(String message) { 3972 Log.d(LOG_TAG, message + 3973 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3974 } 3975 3976 @VisibleForTesting 3977 static int getMaxManagedProfiles() { 3978 // Allow overriding max managed profiles on debuggable builds for testing 3979 // of multiple profiles. 3980 if (!Build.IS_DEBUGGABLE) { 3981 return MAX_MANAGED_PROFILES; 3982 } else { 3983 return SystemProperties.getInt("persist.sys.max_profiles", 3984 MAX_MANAGED_PROFILES); 3985 } 3986 } 3987 3988 @VisibleForTesting 3989 int getFreeProfileBadgeLU(int parentUserId) { 3990 int maxManagedProfiles = getMaxManagedProfiles(); 3991 boolean[] usedBadges = new boolean[maxManagedProfiles]; 3992 final int userSize = mUsers.size(); 3993 for (int i = 0; i < userSize; i++) { 3994 UserInfo ui = mUsers.valueAt(i).info; 3995 // Check which badge indexes are already used by this profile group. 3996 if (ui.isManagedProfile() 3997 && ui.profileGroupId == parentUserId 3998 && !mRemovingUserIds.get(ui.id) 3999 && ui.profileBadge < maxManagedProfiles) { 4000 usedBadges[ui.profileBadge] = true; 4001 } 4002 } 4003 for (int i = 0; i < maxManagedProfiles; i++) { 4004 if (!usedBadges[i]) { 4005 return i; 4006 } 4007 } 4008 return 0; 4009 } 4010 4011 /** 4012 * Checks if the given user has a managed profile associated with it. 4013 * @param userId The parent user 4014 * @return 4015 */ 4016 boolean hasManagedProfile(int userId) { 4017 synchronized (mUsersLock) { 4018 UserInfo userInfo = getUserInfoLU(userId); 4019 final int userSize = mUsers.size(); 4020 for (int i = 0; i < userSize; i++) { 4021 UserInfo profile = mUsers.valueAt(i).info; 4022 if (userId != profile.id && isProfileOf(userInfo, profile)) { 4023 return true; 4024 } 4025 } 4026 return false; 4027 } 4028 } 4029 4030 /** 4031 * Check if the calling package name matches with the calling UID, throw 4032 * {@link SecurityException} if not. 4033 */ 4034 private void verifyCallingPackage(String callingPackage, int callingUid) { 4035 int packageUid = mPm.getPackageUid(callingPackage, 0, UserHandle.getUserId(callingUid)); 4036 if (packageUid != callingUid) { 4037 throw new SecurityException("Specified package " + callingPackage 4038 + " does not match the calling uid " + callingUid); 4039 } 4040 } 4041} 4042