UserManagerService.java revision 88220560a49b5f3504576f913ef66703b5855869
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.pm; 18 19import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS; 20import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; 21 22import android.Manifest; 23import android.annotation.NonNull; 24import android.annotation.Nullable; 25import android.annotation.UserIdInt; 26import android.app.Activity; 27import android.app.ActivityManager; 28import android.app.ActivityManagerInternal; 29import android.app.ActivityManagerNative; 30import android.app.AppGlobals; 31import android.app.IActivityManager; 32import android.app.IStopUserCallback; 33import android.app.KeyguardManager; 34import android.app.PendingIntent; 35import android.content.BroadcastReceiver; 36import android.content.Context; 37import android.content.Intent; 38import android.content.IntentFilter; 39import android.content.IntentSender; 40import android.content.pm.PackageManager; 41import android.content.pm.PackageManager.NameNotFoundException; 42import android.content.pm.UserInfo; 43import android.content.res.Resources; 44import android.graphics.Bitmap; 45import android.os.Binder; 46import android.os.Build; 47import android.os.Bundle; 48import android.os.Debug; 49import android.os.Environment; 50import android.os.FileUtils; 51import android.os.Handler; 52import android.os.IBinder; 53import android.os.IUserManager; 54import android.os.Message; 55import android.os.ParcelFileDescriptor; 56import android.os.Parcelable; 57import android.os.PersistableBundle; 58import android.os.Process; 59import android.os.RemoteException; 60import android.os.ResultReceiver; 61import android.os.SELinux; 62import android.os.ServiceManager; 63import android.os.ShellCallback; 64import android.os.ShellCommand; 65import android.os.SystemProperties; 66import android.os.UserHandle; 67import android.os.UserManager; 68import android.os.UserManager.EnforcingUser; 69import android.os.UserManagerInternal; 70import android.os.UserManagerInternal.UserRestrictionsListener; 71import android.os.storage.StorageManager; 72import android.security.GateKeeper; 73import android.service.gatekeeper.IGateKeeperService; 74import android.system.ErrnoException; 75import android.system.Os; 76import android.system.OsConstants; 77import android.text.TextUtils; 78import android.util.AtomicFile; 79import android.util.IntArray; 80import android.util.Log; 81import android.util.Slog; 82import android.util.SparseArray; 83import android.util.SparseBooleanArray; 84import android.util.SparseIntArray; 85import android.util.TimeUtils; 86import android.util.Xml; 87 88import com.android.internal.annotations.GuardedBy; 89import com.android.internal.annotations.VisibleForTesting; 90import com.android.internal.app.IAppOpsService; 91import com.android.internal.logging.MetricsLogger; 92import com.android.internal.util.DumpUtils; 93import com.android.internal.util.FastXmlSerializer; 94import com.android.internal.util.Preconditions; 95import com.android.internal.util.XmlUtils; 96import com.android.internal.widget.LockPatternUtils; 97import com.android.server.LocalServices; 98import com.android.server.LockGuard; 99import com.android.server.SystemService; 100import com.android.server.am.UserState; 101import com.android.server.storage.DeviceStorageMonitorInternal; 102 103import libcore.io.IoUtils; 104import libcore.util.Objects; 105 106import org.xmlpull.v1.XmlPullParser; 107import org.xmlpull.v1.XmlPullParserException; 108import org.xmlpull.v1.XmlSerializer; 109 110import java.io.BufferedOutputStream; 111import java.io.File; 112import java.io.FileDescriptor; 113import java.io.FileInputStream; 114import java.io.FileNotFoundException; 115import java.io.FileOutputStream; 116import java.io.InputStream; 117import java.io.OutputStream; 118import java.io.IOException; 119import java.io.PrintWriter; 120import java.nio.charset.StandardCharsets; 121import java.util.ArrayList; 122import java.util.Collections; 123import java.util.LinkedList; 124import java.util.List; 125 126/** 127 * Service for {@link UserManager}. 128 * 129 * Method naming convention: 130 * <ul> 131 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 132 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 133 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 134 * </ul> 135 */ 136public class UserManagerService extends IUserManager.Stub { 137 138 private static final String LOG_TAG = "UserManagerService"; 139 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 140 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 141 // Can be used for manual testing of id recycling 142 private static final boolean RELEASE_DELETED_USER_ID = false; // DO NOT SUBMIT WITH TRUE 143 144 private static final String TAG_NAME = "name"; 145 private static final String TAG_ACCOUNT = "account"; 146 private static final String ATTR_FLAGS = "flags"; 147 private static final String ATTR_ICON_PATH = "icon"; 148 private static final String ATTR_ID = "id"; 149 private static final String ATTR_CREATION_TIME = "created"; 150 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 151 private static final String ATTR_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint"; 152 private static final String ATTR_SERIAL_NO = "serialNumber"; 153 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 154 private static final String ATTR_PARTIAL = "partial"; 155 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 156 private static final String ATTR_USER_VERSION = "version"; 157 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 158 private static final String ATTR_PROFILE_BADGE = "profileBadge"; 159 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 160 private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; 161 private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; 162 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 163 private static final String TAG_USERS = "users"; 164 private static final String TAG_USER = "user"; 165 private static final String TAG_RESTRICTIONS = "restrictions"; 166 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 167 private static final String TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS = 168 "device_policy_global_restrictions"; 169 /** Legacy name for device owner id tag. */ 170 private static final String TAG_GLOBAL_RESTRICTION_OWNER_ID = "globalRestrictionOwnerUserId"; 171 private static final String TAG_DEVICE_OWNER_USER_ID = "deviceOwnerUserId"; 172 private static final String TAG_ENTRY = "entry"; 173 private static final String TAG_VALUE = "value"; 174 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 175 private static final String ATTR_KEY = "key"; 176 private static final String ATTR_VALUE_TYPE = "type"; 177 private static final String ATTR_MULTIPLE = "m"; 178 179 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 180 private static final String ATTR_TYPE_STRING = "s"; 181 private static final String ATTR_TYPE_BOOLEAN = "b"; 182 private static final String ATTR_TYPE_INTEGER = "i"; 183 private static final String ATTR_TYPE_BUNDLE = "B"; 184 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 185 186 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 187 private static final String USER_LIST_FILENAME = "userlist.xml"; 188 private static final String USER_PHOTO_FILENAME = "photo.png"; 189 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 190 191 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 192 private static final String XML_SUFFIX = ".xml"; 193 194 private static final int ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION = 195 UserInfo.FLAG_MANAGED_PROFILE 196 | UserInfo.FLAG_EPHEMERAL 197 | UserInfo.FLAG_RESTRICTED 198 | UserInfo.FLAG_GUEST 199 | UserInfo.FLAG_DEMO; 200 201 @VisibleForTesting 202 static final int MIN_USER_ID = 10; 203 // We need to keep process uid within Integer.MAX_VALUE. 204 @VisibleForTesting 205 static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 206 207 // Max size of the queue of recently removed users 208 @VisibleForTesting 209 static final int MAX_RECENTLY_REMOVED_IDS_SIZE = 100; 210 211 private static final int USER_VERSION = 7; 212 213 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 214 215 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 216 // without first making sure that the rest of the framework is prepared for it. 217 @VisibleForTesting 218 static final int MAX_MANAGED_PROFILES = 1; 219 220 static final int WRITE_USER_MSG = 1; 221 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 222 223 // Tron counters 224 private static final String TRON_GUEST_CREATED = "users_guest_created"; 225 private static final String TRON_USER_CREATED = "users_user_created"; 226 private static final String TRON_DEMO_CREATED = "users_demo_created"; 227 228 private final Context mContext; 229 private final PackageManagerService mPm; 230 private final Object mPackagesLock; 231 private final UserDataPreparer mUserDataPreparer; 232 // Short-term lock for internal state, when interaction/sync with PM is not required 233 private final Object mUsersLock = LockGuard.installNewLock(LockGuard.INDEX_USER); 234 private final Object mRestrictionsLock = new Object(); 235 236 private final Handler mHandler; 237 238 private final File mUsersDir; 239 private final File mUserListFile; 240 241 private static final IBinder mUserRestriconToken = new Binder(); 242 243 /** 244 * User-related information that is used for persisting to flash. Only UserInfo is 245 * directly exposed to other system apps. 246 */ 247 @VisibleForTesting 248 static class UserData { 249 // Basic user information and properties 250 UserInfo info; 251 // Account name used when there is a strong association between a user and an account 252 String account; 253 // Account information for seeding into a newly created user. This could also be 254 // used for login validation for an existing user, for updating their credentials. 255 // In the latter case, data may not need to be persisted as it is only valid for the 256 // current login session. 257 String seedAccountName; 258 String seedAccountType; 259 PersistableBundle seedAccountOptions; 260 // Whether to perist the seed account information to be available after a boot 261 boolean persistSeedData; 262 263 void clearSeedAccountData() { 264 seedAccountName = null; 265 seedAccountType = null; 266 seedAccountOptions = null; 267 persistSeedData = false; 268 } 269 } 270 271 @GuardedBy("mUsersLock") 272 private final SparseArray<UserData> mUsers = new SparseArray<>(); 273 274 /** 275 * User restrictions set via UserManager. This doesn't include restrictions set by 276 * device owner / profile owners. Only non-empty restriction bundles are stored. 277 * 278 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 279 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 280 * maybe shared between {@link #mBaseUserRestrictions} and 281 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 282 * (Otherwise we won't be able to detect what restrictions have changed in 283 * {@link #updateUserRestrictionsInternalLR}. 284 */ 285 @GuardedBy("mRestrictionsLock") 286 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 287 288 /** 289 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 290 * with device / profile owner restrictions. We'll initialize it lazily; use 291 * {@link #getEffectiveUserRestrictions} to access it. 292 * 293 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 294 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 295 * maybe shared between {@link #mBaseUserRestrictions} and 296 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 297 * (Otherwise we won't be able to detect what restrictions have changed in 298 * {@link #updateUserRestrictionsInternalLR}. 299 */ 300 @GuardedBy("mRestrictionsLock") 301 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 302 303 /** 304 * User restrictions that have already been applied in 305 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 306 * that have changed since the last 307 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 308 */ 309 @GuardedBy("mRestrictionsLock") 310 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 311 312 /** 313 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 314 * that should be applied to all users, including guests. Only non-empty restriction bundles are 315 * stored. 316 */ 317 @GuardedBy("mRestrictionsLock") 318 private final SparseArray<Bundle> mDevicePolicyGlobalUserRestrictions = new SparseArray<>(); 319 320 /** 321 * Id of the user that set global restrictions. 322 */ 323 @GuardedBy("mRestrictionsLock") 324 private int mDeviceOwnerUserId = UserHandle.USER_NULL; 325 326 /** 327 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 328 * for each user. Only non-empty restriction bundles are stored. 329 */ 330 @GuardedBy("mRestrictionsLock") 331 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 332 333 @GuardedBy("mGuestRestrictions") 334 private final Bundle mGuestRestrictions = new Bundle(); 335 336 /** 337 * Set of user IDs being actively removed. Removed IDs linger in this set 338 * for several seconds to work around a VFS caching issue. 339 * Use {@link #addRemovingUserIdLocked(int)} to add elements to this array 340 */ 341 @GuardedBy("mUsersLock") 342 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 343 344 /** 345 * Queue of recently removed userIds. Used for recycling of userIds 346 */ 347 @GuardedBy("mUsersLock") 348 private final LinkedList<Integer> mRecentlyRemovedIds = new LinkedList<>(); 349 350 @GuardedBy("mUsersLock") 351 private int[] mUserIds; 352 @GuardedBy("mPackagesLock") 353 private int mNextSerialNumber; 354 private int mUserVersion = 0; 355 356 private IAppOpsService mAppOpsService; 357 358 private final LocalService mLocalService; 359 360 @GuardedBy("mUsersLock") 361 private boolean mIsDeviceManaged; 362 363 @GuardedBy("mUsersLock") 364 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 365 366 @GuardedBy("mUserRestrictionsListeners") 367 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 368 new ArrayList<>(); 369 370 private final LockPatternUtils mLockPatternUtils; 371 372 private final String ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK = 373 "com.android.server.pm.DISABLE_QUIET_MODE_AFTER_UNLOCK"; 374 375 private final BroadcastReceiver mDisableQuietModeCallback = new BroadcastReceiver() { 376 @Override 377 public void onReceive(Context context, Intent intent) { 378 if (ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK.equals(intent.getAction())) { 379 final IntentSender target = intent.getParcelableExtra(Intent.EXTRA_INTENT); 380 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_ID, 0); 381 setQuietModeEnabled(userHandle, false); 382 if (target != null) { 383 try { 384 mContext.startIntentSender(target, null, 0, 0, 0); 385 } catch (IntentSender.SendIntentException e) { 386 /* ignore */ 387 } 388 } 389 } 390 } 391 }; 392 393 /** 394 * Whether all users should be created ephemeral. 395 */ 396 @GuardedBy("mUsersLock") 397 private boolean mForceEphemeralUsers; 398 399 @GuardedBy("mUserStates") 400 private final SparseIntArray mUserStates = new SparseIntArray(); 401 402 private static UserManagerService sInstance; 403 404 public static UserManagerService getInstance() { 405 synchronized (UserManagerService.class) { 406 return sInstance; 407 } 408 } 409 410 public static class LifeCycle extends SystemService { 411 412 private UserManagerService mUms; 413 414 /** 415 * @param context 416 */ 417 public LifeCycle(Context context) { 418 super(context); 419 } 420 421 @Override 422 public void onStart() { 423 mUms = UserManagerService.getInstance(); 424 publishBinderService(Context.USER_SERVICE, mUms); 425 } 426 427 @Override 428 public void onBootPhase(int phase) { 429 if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) { 430 mUms.cleanupPartialUsers(); 431 } 432 } 433 } 434 435 // TODO b/28848102 Add support for test dependencies injection 436 @VisibleForTesting 437 UserManagerService(Context context) { 438 this(context, null, null, new Object(), context.getCacheDir()); 439 } 440 441 /** 442 * Called by package manager to create the service. This is closely 443 * associated with the package manager, and the given lock is the 444 * package manager's own lock. 445 */ 446 UserManagerService(Context context, PackageManagerService pm, UserDataPreparer userDataPreparer, 447 Object packagesLock) { 448 this(context, pm, userDataPreparer, packagesLock, Environment.getDataDirectory()); 449 } 450 451 private UserManagerService(Context context, PackageManagerService pm, 452 UserDataPreparer userDataPreparer, Object packagesLock, File dataDir) { 453 mContext = context; 454 mPm = pm; 455 mPackagesLock = packagesLock; 456 mHandler = new MainHandler(); 457 mUserDataPreparer = userDataPreparer; 458 synchronized (mPackagesLock) { 459 mUsersDir = new File(dataDir, USER_INFO_DIR); 460 mUsersDir.mkdirs(); 461 // Make zeroth user directory, for services to migrate their files to that location 462 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 463 userZeroDir.mkdirs(); 464 FileUtils.setPermissions(mUsersDir.toString(), 465 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 466 -1, -1); 467 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 468 initDefaultGuestRestrictions(); 469 readUserListLP(); 470 sInstance = this; 471 } 472 mLocalService = new LocalService(); 473 LocalServices.addService(UserManagerInternal.class, mLocalService); 474 mLockPatternUtils = new LockPatternUtils(mContext); 475 mUserStates.put(UserHandle.USER_SYSTEM, UserState.STATE_BOOTING); 476 } 477 478 void systemReady() { 479 mAppOpsService = IAppOpsService.Stub.asInterface( 480 ServiceManager.getService(Context.APP_OPS_SERVICE)); 481 482 synchronized (mRestrictionsLock) { 483 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 484 } 485 486 UserInfo currentGuestUser = findCurrentGuestUser(); 487 if (currentGuestUser != null && !hasUserRestriction( 488 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 489 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 490 // to it, in case this guest was created in a previous version where this 491 // user restriction was not a default guest restriction. 492 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 493 } 494 495 mContext.registerReceiver(mDisableQuietModeCallback, 496 new IntentFilter(ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK), 497 null, mHandler); 498 } 499 500 void cleanupPartialUsers() { 501 // Prune out any partially created, partially removed and ephemeral users. 502 ArrayList<UserInfo> partials = new ArrayList<>(); 503 synchronized (mUsersLock) { 504 final int userSize = mUsers.size(); 505 for (int i = 0; i < userSize; i++) { 506 UserInfo ui = mUsers.valueAt(i).info; 507 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 508 partials.add(ui); 509 addRemovingUserIdLocked(ui.id); 510 ui.partial = true; 511 } 512 } 513 } 514 final int partialsSize = partials.size(); 515 for (int i = 0; i < partialsSize; i++) { 516 UserInfo ui = partials.get(i); 517 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 518 + " (name=" + ui.name + ")"); 519 removeUserState(ui.id); 520 } 521 } 522 523 @Override 524 public String getUserAccount(int userId) { 525 checkManageUserAndAcrossUsersFullPermission("get user account"); 526 synchronized (mUsersLock) { 527 return mUsers.get(userId).account; 528 } 529 } 530 531 @Override 532 public void setUserAccount(int userId, String accountName) { 533 checkManageUserAndAcrossUsersFullPermission("set user account"); 534 UserData userToUpdate = null; 535 synchronized (mPackagesLock) { 536 synchronized (mUsersLock) { 537 final UserData userData = mUsers.get(userId); 538 if (userData == null) { 539 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 540 return; 541 } 542 String currentAccount = userData.account; 543 if (!Objects.equal(currentAccount, accountName)) { 544 userData.account = accountName; 545 userToUpdate = userData; 546 } 547 } 548 549 if (userToUpdate != null) { 550 writeUserLP(userToUpdate); 551 } 552 } 553 } 554 555 @Override 556 public UserInfo getPrimaryUser() { 557 checkManageUsersPermission("query users"); 558 synchronized (mUsersLock) { 559 final int userSize = mUsers.size(); 560 for (int i = 0; i < userSize; i++) { 561 UserInfo ui = mUsers.valueAt(i).info; 562 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 563 return ui; 564 } 565 } 566 } 567 return null; 568 } 569 570 @Override 571 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 572 checkManageOrCreateUsersPermission("query users"); 573 synchronized (mUsersLock) { 574 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 575 final int userSize = mUsers.size(); 576 for (int i = 0; i < userSize; i++) { 577 UserInfo ui = mUsers.valueAt(i).info; 578 if (ui.partial) { 579 continue; 580 } 581 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 582 users.add(userWithName(ui)); 583 } 584 } 585 return users; 586 } 587 } 588 589 @Override 590 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 591 boolean returnFullInfo = true; 592 if (userId != UserHandle.getCallingUserId()) { 593 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 594 } else { 595 returnFullInfo = hasManageUsersPermission(); 596 } 597 final long ident = Binder.clearCallingIdentity(); 598 try { 599 synchronized (mUsersLock) { 600 return getProfilesLU(userId, enabledOnly, returnFullInfo); 601 } 602 } finally { 603 Binder.restoreCallingIdentity(ident); 604 } 605 } 606 607 @Override 608 public int[] getProfileIds(int userId, boolean enabledOnly) { 609 if (userId != UserHandle.getCallingUserId()) { 610 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 611 } 612 final long ident = Binder.clearCallingIdentity(); 613 try { 614 synchronized (mUsersLock) { 615 return getProfileIdsLU(userId, enabledOnly).toArray(); 616 } 617 } finally { 618 Binder.restoreCallingIdentity(ident); 619 } 620 } 621 622 /** Assume permissions already checked and caller's identity cleared */ 623 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 624 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 625 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 626 for (int i = 0; i < profileIds.size(); i++) { 627 int profileId = profileIds.get(i); 628 UserInfo userInfo = mUsers.get(profileId).info; 629 // If full info is not required - clear PII data to prevent 3P apps from reading it 630 if (!fullInfo) { 631 userInfo = new UserInfo(userInfo); 632 userInfo.name = null; 633 userInfo.iconPath = null; 634 } else { 635 userInfo = userWithName(userInfo); 636 } 637 users.add(userInfo); 638 } 639 return users; 640 } 641 642 /** 643 * Assume permissions already checked and caller's identity cleared 644 */ 645 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 646 UserInfo user = getUserInfoLU(userId); 647 IntArray result = new IntArray(mUsers.size()); 648 if (user == null) { 649 // Probably a dying user 650 return result; 651 } 652 final int userSize = mUsers.size(); 653 for (int i = 0; i < userSize; i++) { 654 UserInfo profile = mUsers.valueAt(i).info; 655 if (!isProfileOf(user, profile)) { 656 continue; 657 } 658 if (enabledOnly && !profile.isEnabled()) { 659 continue; 660 } 661 if (mRemovingUserIds.get(profile.id)) { 662 continue; 663 } 664 if (profile.partial) { 665 continue; 666 } 667 result.add(profile.id); 668 } 669 return result; 670 } 671 672 @Override 673 public int getCredentialOwnerProfile(int userHandle) { 674 checkManageUsersPermission("get the credential owner"); 675 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 676 synchronized (mUsersLock) { 677 UserInfo profileParent = getProfileParentLU(userHandle); 678 if (profileParent != null) { 679 return profileParent.id; 680 } 681 } 682 } 683 684 return userHandle; 685 } 686 687 @Override 688 public boolean isSameProfileGroup(int userId, int otherUserId) { 689 if (userId == otherUserId) return true; 690 checkManageUsersPermission("check if in the same profile group"); 691 return isSameProfileGroupNoChecks(userId, otherUserId); 692 } 693 694 private boolean isSameProfileGroupNoChecks(int userId, int otherUserId) { 695 synchronized (mUsersLock) { 696 UserInfo userInfo = getUserInfoLU(userId); 697 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 698 return false; 699 } 700 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 701 if (otherUserInfo == null 702 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 703 return false; 704 } 705 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 706 } 707 } 708 709 @Override 710 public UserInfo getProfileParent(int userHandle) { 711 checkManageUsersPermission("get the profile parent"); 712 synchronized (mUsersLock) { 713 return getProfileParentLU(userHandle); 714 } 715 } 716 717 private UserInfo getProfileParentLU(int userHandle) { 718 UserInfo profile = getUserInfoLU(userHandle); 719 if (profile == null) { 720 return null; 721 } 722 int parentUserId = profile.profileGroupId; 723 if (parentUserId == userHandle || parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 724 return null; 725 } else { 726 return getUserInfoLU(parentUserId); 727 } 728 } 729 730 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 731 return user.id == profile.id || 732 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 733 && user.profileGroupId == profile.profileGroupId); 734 } 735 736 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 737 UserHandle parentHandle, boolean inQuietMode) { 738 Intent intent = new Intent(); 739 if (inQuietMode) { 740 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 741 } else { 742 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 743 } 744 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 745 intent.putExtra(Intent.EXTRA_USER, profileHandle); 746 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 747 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 748 mContext.sendBroadcastAsUser(intent, parentHandle); 749 } 750 751 @Override 752 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { 753 checkManageUsersPermission("silence profile"); 754 boolean changed = false; 755 UserInfo profile, parent; 756 synchronized (mPackagesLock) { 757 synchronized (mUsersLock) { 758 profile = getUserInfoLU(userHandle); 759 parent = getProfileParentLU(userHandle); 760 761 } 762 if (profile == null || !profile.isManagedProfile()) { 763 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 764 } 765 if (profile.isQuietModeEnabled() != enableQuietMode) { 766 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 767 writeUserLP(getUserDataLU(profile.id)); 768 changed = true; 769 } 770 } 771 if (changed) { 772 long identity = Binder.clearCallingIdentity(); 773 try { 774 if (enableQuietMode) { 775 ActivityManager.getService().stopUser(userHandle, /* force */true, null); 776 LocalServices.getService(ActivityManagerInternal.class) 777 .killForegroundAppsForUser(userHandle); 778 } else { 779 ActivityManager.getService().startUserInBackground(userHandle); 780 } 781 } catch (RemoteException e) { 782 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 783 } finally { 784 Binder.restoreCallingIdentity(identity); 785 } 786 787 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 788 enableQuietMode); 789 } 790 } 791 792 @Override 793 public boolean isQuietModeEnabled(int userHandle) { 794 synchronized (mPackagesLock) { 795 UserInfo info; 796 synchronized (mUsersLock) { 797 info = getUserInfoLU(userHandle); 798 } 799 if (info == null || !info.isManagedProfile()) { 800 return false; 801 } 802 return info.isQuietModeEnabled(); 803 } 804 } 805 806 @Override 807 public boolean trySetQuietModeDisabled(int userHandle, IntentSender target) { 808 checkManageUsersPermission("silence profile"); 809 if (StorageManager.isUserKeyUnlocked(userHandle) 810 || !mLockPatternUtils.isSecure(userHandle)) { 811 // if the user is already unlocked, no need to show a profile challenge 812 setQuietModeEnabled(userHandle, false); 813 return true; 814 } 815 816 long identity = Binder.clearCallingIdentity(); 817 try { 818 // otherwise, we show a profile challenge to trigger decryption of the user 819 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 820 Context.KEYGUARD_SERVICE); 821 // We should use userHandle not credentialOwnerUserId here, as even if it is unified 822 // lock, confirm screenlock page will know and show personal challenge, and unlock 823 // work profile when personal challenge is correct 824 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 825 userHandle); 826 if (unlockIntent == null) { 827 return false; 828 } 829 final Intent callBackIntent = new Intent( 830 ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK); 831 if (target != null) { 832 callBackIntent.putExtra(Intent.EXTRA_INTENT, target); 833 } 834 callBackIntent.putExtra(Intent.EXTRA_USER_ID, userHandle); 835 callBackIntent.setPackage(mContext.getPackageName()); 836 callBackIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 837 final PendingIntent pendingIntent = PendingIntent.getBroadcast( 838 mContext, 839 0, 840 callBackIntent, 841 PendingIntent.FLAG_CANCEL_CURRENT | 842 PendingIntent.FLAG_ONE_SHOT | 843 PendingIntent.FLAG_IMMUTABLE); 844 // After unlocking the challenge, it will disable quiet mode and run the original 845 // intentSender 846 unlockIntent.putExtra(Intent.EXTRA_INTENT, pendingIntent.getIntentSender()); 847 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 848 mContext.startActivity(unlockIntent); 849 } finally { 850 Binder.restoreCallingIdentity(identity); 851 } 852 return false; 853 } 854 855 @Override 856 public void setUserEnabled(int userId) { 857 checkManageUsersPermission("enable user"); 858 synchronized (mPackagesLock) { 859 UserInfo info; 860 synchronized (mUsersLock) { 861 info = getUserInfoLU(userId); 862 } 863 if (info != null && !info.isEnabled()) { 864 info.flags ^= UserInfo.FLAG_DISABLED; 865 writeUserLP(getUserDataLU(info.id)); 866 } 867 } 868 } 869 870 /** 871 * Evicts a user's CE key by stopping and restarting the user. 872 * 873 * The key is evicted automatically by the user controller when the user has stopped. 874 */ 875 @Override 876 public void evictCredentialEncryptionKey(@UserIdInt int userId) { 877 checkManageUsersPermission("evict CE key"); 878 final IActivityManager am = ActivityManagerNative.getDefault(); 879 final long identity = Binder.clearCallingIdentity(); 880 try { 881 am.restartUserInBackground(userId); 882 } catch (RemoteException re) { 883 throw re.rethrowAsRuntimeException(); 884 } finally { 885 Binder.restoreCallingIdentity(identity); 886 } 887 } 888 889 @Override 890 public UserInfo getUserInfo(int userId) { 891 checkManageOrCreateUsersPermission("query user"); 892 synchronized (mUsersLock) { 893 return userWithName(getUserInfoLU(userId)); 894 } 895 } 896 897 /** 898 * Returns a UserInfo object with the name filled in, for Owner, or the original 899 * if the name is already set. 900 */ 901 private UserInfo userWithName(UserInfo orig) { 902 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 903 UserInfo withName = new UserInfo(orig); 904 withName.name = getOwnerName(); 905 return withName; 906 } else { 907 return orig; 908 } 909 } 910 911 @Override 912 public int getManagedProfileBadge(@UserIdInt int userId) { 913 int callingUserId = UserHandle.getCallingUserId(); 914 if (callingUserId != userId && !hasManageUsersPermission()) { 915 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 916 throw new SecurityException( 917 "You need MANAGE_USERS permission to: check if specified user a " + 918 "managed profile outside your profile group"); 919 } 920 } 921 synchronized (mUsersLock) { 922 UserInfo userInfo = getUserInfoLU(userId); 923 return userInfo != null ? userInfo.profileBadge : 0; 924 } 925 } 926 927 @Override 928 public boolean isManagedProfile(int userId) { 929 int callingUserId = UserHandle.getCallingUserId(); 930 if (callingUserId != userId && !hasManageUsersPermission()) { 931 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 932 throw new SecurityException( 933 "You need MANAGE_USERS permission to: check if specified user a " + 934 "managed profile outside your profile group"); 935 } 936 } 937 synchronized (mUsersLock) { 938 UserInfo userInfo = getUserInfoLU(userId); 939 return userInfo != null && userInfo.isManagedProfile(); 940 } 941 } 942 943 @Override 944 public boolean isUserUnlockingOrUnlocked(int userId) { 945 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlockingOrUnlocked"); 946 return mLocalService.isUserUnlockingOrUnlocked(userId); 947 } 948 949 @Override 950 public boolean isUserUnlocked(int userId) { 951 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlocked"); 952 return mLocalService.isUserUnlockingOrUnlocked(userId); 953 } 954 955 @Override 956 public boolean isUserRunning(int userId) { 957 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserRunning"); 958 return mLocalService.isUserRunning(userId); 959 } 960 961 private void checkManageOrInteractPermIfCallerInOtherProfileGroup(int userId, String name) { 962 int callingUserId = UserHandle.getCallingUserId(); 963 if (callingUserId == userId || isSameProfileGroupNoChecks(callingUserId, userId) || 964 hasManageUsersPermission()) { 965 return; 966 } 967 if (ActivityManager.checkComponentPermission(Manifest.permission.INTERACT_ACROSS_USERS, 968 Binder.getCallingUid(), -1, true) != PackageManager.PERMISSION_GRANTED) { 969 throw new SecurityException("You need INTERACT_ACROSS_USERS or MANAGE_USERS permission " 970 + "to: check " + name); 971 } 972 } 973 974 @Override 975 public boolean isDemoUser(int userId) { 976 int callingUserId = UserHandle.getCallingUserId(); 977 if (callingUserId != userId && !hasManageUsersPermission()) { 978 throw new SecurityException("You need MANAGE_USERS permission to query if u=" + userId 979 + " is a demo user"); 980 } 981 synchronized (mUsersLock) { 982 UserInfo userInfo = getUserInfoLU(userId); 983 return userInfo != null && userInfo.isDemo(); 984 } 985 } 986 987 @Override 988 public boolean isRestricted() { 989 synchronized (mUsersLock) { 990 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 991 } 992 } 993 994 @Override 995 public boolean canHaveRestrictedProfile(int userId) { 996 checkManageUsersPermission("canHaveRestrictedProfile"); 997 synchronized (mUsersLock) { 998 final UserInfo userInfo = getUserInfoLU(userId); 999 if (userInfo == null || !userInfo.canHaveProfile()) { 1000 return false; 1001 } 1002 if (!userInfo.isAdmin()) { 1003 return false; 1004 } 1005 // restricted profile can be created if there is no DO set and the admin user has no PO; 1006 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 1007 } 1008 } 1009 1010 /* 1011 * Should be locked on mUsers before calling this. 1012 */ 1013 private UserInfo getUserInfoLU(int userId) { 1014 final UserData userData = mUsers.get(userId); 1015 // If it is partial and not in the process of being removed, return as unknown user. 1016 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 1017 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 1018 return null; 1019 } 1020 return userData != null ? userData.info : null; 1021 } 1022 1023 private UserData getUserDataLU(int userId) { 1024 final UserData userData = mUsers.get(userId); 1025 // If it is partial and not in the process of being removed, return as unknown user. 1026 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 1027 return null; 1028 } 1029 return userData; 1030 } 1031 1032 /** 1033 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 1034 * <p>No permissions checking or any addition checks are made</p> 1035 */ 1036 private UserInfo getUserInfoNoChecks(int userId) { 1037 synchronized (mUsersLock) { 1038 final UserData userData = mUsers.get(userId); 1039 return userData != null ? userData.info : null; 1040 } 1041 } 1042 1043 /** 1044 * Obtains {@link #mUsersLock} and return UserData from mUsers. 1045 * <p>No permissions checking or any addition checks are made</p> 1046 */ 1047 private UserData getUserDataNoChecks(int userId) { 1048 synchronized (mUsersLock) { 1049 return mUsers.get(userId); 1050 } 1051 } 1052 1053 /** Called by PackageManagerService */ 1054 public boolean exists(int userId) { 1055 return getUserInfoNoChecks(userId) != null; 1056 } 1057 1058 @Override 1059 public void setUserName(int userId, String name) { 1060 checkManageUsersPermission("rename users"); 1061 boolean changed = false; 1062 synchronized (mPackagesLock) { 1063 UserData userData = getUserDataNoChecks(userId); 1064 if (userData == null || userData.info.partial) { 1065 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 1066 return; 1067 } 1068 if (name != null && !name.equals(userData.info.name)) { 1069 userData.info.name = name; 1070 writeUserLP(userData); 1071 changed = true; 1072 } 1073 } 1074 if (changed) { 1075 sendUserInfoChangedBroadcast(userId); 1076 } 1077 } 1078 1079 @Override 1080 public void setUserIcon(int userId, Bitmap bitmap) { 1081 checkManageUsersPermission("update users"); 1082 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 1083 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 1084 return; 1085 } 1086 mLocalService.setUserIcon(userId, bitmap); 1087 } 1088 1089 1090 1091 private void sendUserInfoChangedBroadcast(int userId) { 1092 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 1093 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 1094 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1095 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 1096 } 1097 1098 @Override 1099 public ParcelFileDescriptor getUserIcon(int targetUserId) { 1100 String iconPath; 1101 synchronized (mPackagesLock) { 1102 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 1103 if (targetUserInfo == null || targetUserInfo.partial) { 1104 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 1105 return null; 1106 } 1107 1108 final int callingUserId = UserHandle.getCallingUserId(); 1109 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 1110 final int targetGroupId = targetUserInfo.profileGroupId; 1111 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 1112 && callingGroupId == targetGroupId); 1113 if ((callingUserId != targetUserId) && !sameGroup) { 1114 checkManageUsersPermission("get the icon of a user who is not related"); 1115 } 1116 1117 if (targetUserInfo.iconPath == null) { 1118 return null; 1119 } 1120 iconPath = targetUserInfo.iconPath; 1121 } 1122 1123 try { 1124 return ParcelFileDescriptor.open( 1125 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 1126 } catch (FileNotFoundException e) { 1127 Log.e(LOG_TAG, "Couldn't find icon file", e); 1128 } 1129 return null; 1130 } 1131 1132 public void makeInitialized(int userId) { 1133 checkManageUsersPermission("makeInitialized"); 1134 boolean scheduleWriteUser = false; 1135 UserData userData; 1136 synchronized (mUsersLock) { 1137 userData = mUsers.get(userId); 1138 if (userData == null || userData.info.partial) { 1139 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 1140 return; 1141 } 1142 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1143 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1144 scheduleWriteUser = true; 1145 } 1146 } 1147 if (scheduleWriteUser) { 1148 scheduleWriteUser(userData); 1149 } 1150 } 1151 1152 /** 1153 * If default guest restrictions haven't been initialized yet, add the basic 1154 * restrictions. 1155 */ 1156 private void initDefaultGuestRestrictions() { 1157 synchronized (mGuestRestrictions) { 1158 if (mGuestRestrictions.isEmpty()) { 1159 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 1160 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 1161 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 1162 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 1163 } 1164 } 1165 } 1166 1167 @Override 1168 public Bundle getDefaultGuestRestrictions() { 1169 checkManageUsersPermission("getDefaultGuestRestrictions"); 1170 synchronized (mGuestRestrictions) { 1171 return new Bundle(mGuestRestrictions); 1172 } 1173 } 1174 1175 @Override 1176 public void setDefaultGuestRestrictions(Bundle restrictions) { 1177 checkManageUsersPermission("setDefaultGuestRestrictions"); 1178 synchronized (mGuestRestrictions) { 1179 mGuestRestrictions.clear(); 1180 mGuestRestrictions.putAll(restrictions); 1181 } 1182 synchronized (mPackagesLock) { 1183 writeUserListLP(); 1184 } 1185 } 1186 1187 /** 1188 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions} 1189 */ 1190 private void setDevicePolicyUserRestrictionsInner(int userId, @Nullable Bundle restrictions, 1191 boolean isDeviceOwner, int cameraRestrictionScope) { 1192 final Bundle global = new Bundle(); 1193 final Bundle local = new Bundle(); 1194 1195 // Sort restrictions into local and global ensuring they don't overlap. 1196 UserRestrictionsUtils.sortToGlobalAndLocal(restrictions, isDeviceOwner, 1197 cameraRestrictionScope, global, local); 1198 1199 boolean globalChanged, localChanged; 1200 synchronized (mRestrictionsLock) { 1201 // Update global and local restrictions if they were changed. 1202 globalChanged = updateRestrictionsIfNeededLR( 1203 userId, global, mDevicePolicyGlobalUserRestrictions); 1204 localChanged = updateRestrictionsIfNeededLR( 1205 userId, local, mDevicePolicyLocalUserRestrictions); 1206 1207 if (isDeviceOwner) { 1208 // Remember the global restriction owner userId to be able to make a distinction 1209 // in getUserRestrictionSource on who set local policies. 1210 mDeviceOwnerUserId = userId; 1211 } else { 1212 if (mDeviceOwnerUserId == userId) { 1213 // When profile owner sets restrictions it passes null global bundle and we 1214 // reset global restriction owner userId. 1215 // This means this user used to have DO, but now the DO is gone and the user 1216 // instead has PO. 1217 mDeviceOwnerUserId = UserHandle.USER_NULL; 1218 } 1219 } 1220 } 1221 if (DBG) { 1222 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1223 + " global=" + global + (globalChanged ? " (changed)" : "") 1224 + " local=" + local + (localChanged ? " (changed)" : "") 1225 ); 1226 } 1227 // Don't call them within the mRestrictionsLock. 1228 synchronized (mPackagesLock) { 1229 if (localChanged || globalChanged) { 1230 writeUserLP(getUserDataNoChecks(userId)); 1231 } 1232 } 1233 1234 synchronized (mRestrictionsLock) { 1235 if (globalChanged) { 1236 applyUserRestrictionsForAllUsersLR(); 1237 } else if (localChanged) { 1238 applyUserRestrictionsLR(userId); 1239 } 1240 } 1241 } 1242 1243 /** 1244 * Updates restriction bundle for a given user in a given restriction array. If new bundle is 1245 * empty, record is removed from the array. 1246 * @return whether restrictions bundle is different from the old one. 1247 */ 1248 private boolean updateRestrictionsIfNeededLR(int userId, @Nullable Bundle restrictions, 1249 SparseArray<Bundle> restrictionsArray) { 1250 final boolean changed = 1251 !UserRestrictionsUtils.areEqual(restrictionsArray.get(userId), restrictions); 1252 if (changed) { 1253 if (!UserRestrictionsUtils.isEmpty(restrictions)) { 1254 restrictionsArray.put(userId, restrictions); 1255 } else { 1256 restrictionsArray.delete(userId); 1257 } 1258 } 1259 return changed; 1260 } 1261 1262 @GuardedBy("mRestrictionsLock") 1263 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1264 final Bundle baseRestrictions = 1265 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1266 final Bundle global = UserRestrictionsUtils.mergeAll(mDevicePolicyGlobalUserRestrictions); 1267 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1268 1269 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1270 // Common case first. 1271 return baseRestrictions; 1272 } 1273 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1274 UserRestrictionsUtils.merge(effective, global); 1275 UserRestrictionsUtils.merge(effective, local); 1276 1277 return effective; 1278 } 1279 1280 @GuardedBy("mRestrictionsLock") 1281 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1282 if (DBG) { 1283 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1284 } 1285 mCachedEffectiveUserRestrictions.remove(userId); 1286 } 1287 1288 private Bundle getEffectiveUserRestrictions(int userId) { 1289 synchronized (mRestrictionsLock) { 1290 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1291 if (restrictions == null) { 1292 restrictions = computeEffectiveUserRestrictionsLR(userId); 1293 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1294 } 1295 return restrictions; 1296 } 1297 } 1298 1299 /** @return a specific user restriction that's in effect currently. */ 1300 @Override 1301 public boolean hasUserRestriction(String restrictionKey, int userId) { 1302 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1303 return false; 1304 } 1305 Bundle restrictions = getEffectiveUserRestrictions(userId); 1306 return restrictions != null && restrictions.getBoolean(restrictionKey); 1307 } 1308 1309 /** 1310 * @hide 1311 * 1312 * Returns who set a user restriction on a user. 1313 * Requires {@link android.Manifest.permission#MANAGE_USERS} permission. 1314 * @param restrictionKey the string key representing the restriction 1315 * @param userId the id of the user for whom to retrieve the restrictions. 1316 * @return The source of user restriction. Any combination of 1317 * {@link UserManager#RESTRICTION_NOT_SET}, 1318 * {@link UserManager#RESTRICTION_SOURCE_SYSTEM}, 1319 * {@link UserManager#RESTRICTION_SOURCE_DEVICE_OWNER} 1320 * and {@link UserManager#RESTRICTION_SOURCE_PROFILE_OWNER} 1321 */ 1322 @Override 1323 public int getUserRestrictionSource(String restrictionKey, int userId) { 1324 List<EnforcingUser> enforcingUsers = getUserRestrictionSources(restrictionKey, userId); 1325 // Get "bitwise or" of restriction sources for all enforcing users. 1326 int result = UserManager.RESTRICTION_NOT_SET; 1327 for (int i = enforcingUsers.size() - 1; i >= 0; i--) { 1328 result |= enforcingUsers.get(i).getUserRestrictionSource(); 1329 } 1330 return result; 1331 } 1332 1333 @Override 1334 public List<EnforcingUser> getUserRestrictionSources( 1335 String restrictionKey, @UserIdInt int userId) { 1336 checkManageUsersPermission("getUserRestrictionSource"); 1337 1338 // Shortcut for the most common case 1339 if (!hasUserRestriction(restrictionKey, userId)) { 1340 return Collections.emptyList(); 1341 } 1342 1343 final List<EnforcingUser> result = new ArrayList<>(); 1344 1345 // Check if it is base restriction. 1346 if (hasBaseUserRestriction(restrictionKey, userId)) { 1347 result.add(new EnforcingUser( 1348 UserHandle.USER_NULL, UserManager.RESTRICTION_SOURCE_SYSTEM)); 1349 } 1350 1351 synchronized (mRestrictionsLock) { 1352 // Check if it is set by profile owner. 1353 Bundle profileOwnerRestrictions = mDevicePolicyLocalUserRestrictions.get(userId); 1354 if (UserRestrictionsUtils.contains(profileOwnerRestrictions, restrictionKey)) { 1355 result.add(getEnforcingUserLocked(userId)); 1356 } 1357 1358 // Iterate over all users who enforce global restrictions. 1359 for (int i = mDevicePolicyGlobalUserRestrictions.size() - 1; i >= 0; i--) { 1360 Bundle globalRestrictions = mDevicePolicyGlobalUserRestrictions.valueAt(i); 1361 int profileUserId = mDevicePolicyGlobalUserRestrictions.keyAt(i); 1362 if (UserRestrictionsUtils.contains(globalRestrictions, restrictionKey)) { 1363 result.add(getEnforcingUserLocked(profileUserId)); 1364 } 1365 } 1366 } 1367 return result; 1368 } 1369 1370 private EnforcingUser getEnforcingUserLocked(@UserIdInt int userId) { 1371 int source = mDeviceOwnerUserId == userId ? UserManager.RESTRICTION_SOURCE_DEVICE_OWNER 1372 : UserManager.RESTRICTION_SOURCE_PROFILE_OWNER; 1373 return new EnforcingUser(userId, source); 1374 } 1375 1376 /** 1377 * @return UserRestrictions that are in effect currently. This always returns a new 1378 * {@link Bundle}. 1379 */ 1380 @Override 1381 public Bundle getUserRestrictions(int userId) { 1382 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1383 } 1384 1385 @Override 1386 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1387 checkManageUsersPermission("hasBaseUserRestriction"); 1388 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1389 return false; 1390 } 1391 synchronized (mRestrictionsLock) { 1392 Bundle bundle = mBaseUserRestrictions.get(userId); 1393 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1394 } 1395 } 1396 1397 @Override 1398 public void setUserRestriction(String key, boolean value, int userId) { 1399 checkManageUsersPermission("setUserRestriction"); 1400 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1401 return; 1402 } 1403 synchronized (mRestrictionsLock) { 1404 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1405 // a copy. 1406 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1407 mBaseUserRestrictions.get(userId)); 1408 newRestrictions.putBoolean(key, value); 1409 1410 updateUserRestrictionsInternalLR(newRestrictions, userId); 1411 } 1412 } 1413 1414 /** 1415 * Optionally updating user restrictions, calculate the effective user restrictions and also 1416 * propagate to other services and system settings. 1417 * 1418 * @param newBaseRestrictions User restrictions to set. 1419 * If null, will not update user restrictions and only does the propagation. 1420 * @param userId target user ID. 1421 */ 1422 @GuardedBy("mRestrictionsLock") 1423 private void updateUserRestrictionsInternalLR( 1424 @Nullable Bundle newBaseRestrictions, int userId) { 1425 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1426 mAppliedUserRestrictions.get(userId)); 1427 1428 // Update base restrictions. 1429 if (newBaseRestrictions != null) { 1430 // If newBaseRestrictions == the current one, it's probably a bug. 1431 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1432 1433 Preconditions.checkState(prevBaseRestrictions != newBaseRestrictions); 1434 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1435 != newBaseRestrictions); 1436 1437 if (updateRestrictionsIfNeededLR(userId, newBaseRestrictions, mBaseUserRestrictions)) { 1438 scheduleWriteUser(getUserDataNoChecks(userId)); 1439 } 1440 } 1441 1442 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1443 1444 mCachedEffectiveUserRestrictions.put(userId, effective); 1445 1446 // Apply the new restrictions. 1447 if (DBG) { 1448 debug("Applying user restrictions: userId=" + userId 1449 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1450 } 1451 1452 if (mAppOpsService != null) { // We skip it until system-ready. 1453 mHandler.post(new Runnable() { 1454 @Override 1455 public void run() { 1456 try { 1457 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1458 } catch (RemoteException e) { 1459 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1460 } 1461 } 1462 }); 1463 } 1464 1465 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1466 1467 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1468 } 1469 1470 private void propagateUserRestrictionsLR(final int userId, 1471 Bundle newRestrictions, Bundle prevRestrictions) { 1472 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1473 // actually, but we still need some kind of synchronization otherwise we might end up 1474 // calling listeners out-of-order, thus "LR". 1475 1476 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1477 return; 1478 } 1479 1480 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1481 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1482 1483 mHandler.post(new Runnable() { 1484 @Override 1485 public void run() { 1486 UserRestrictionsUtils.applyUserRestrictions( 1487 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1488 1489 final UserRestrictionsListener[] listeners; 1490 synchronized (mUserRestrictionsListeners) { 1491 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1492 mUserRestrictionsListeners.toArray(listeners); 1493 } 1494 for (int i = 0; i < listeners.length; i++) { 1495 listeners[i].onUserRestrictionsChanged(userId, 1496 newRestrictionsFinal, prevRestrictionsFinal); 1497 } 1498 1499 final Intent broadcast = new Intent(UserManager.ACTION_USER_RESTRICTIONS_CHANGED) 1500 .setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1501 mContext.sendBroadcastAsUser(broadcast, UserHandle.of(userId)); 1502 } 1503 }); 1504 } 1505 1506 // Package private for the inner class. 1507 void applyUserRestrictionsLR(int userId) { 1508 updateUserRestrictionsInternalLR(null, userId); 1509 } 1510 1511 @GuardedBy("mRestrictionsLock") 1512 // Package private for the inner class. 1513 void applyUserRestrictionsForAllUsersLR() { 1514 if (DBG) { 1515 debug("applyUserRestrictionsForAllUsersLR"); 1516 } 1517 // First, invalidate all cached values. 1518 mCachedEffectiveUserRestrictions.clear(); 1519 1520 // We don't want to call into ActivityManagerService while taking a lock, so we'll call 1521 // it on a handler. 1522 final Runnable r = new Runnable() { 1523 @Override 1524 public void run() { 1525 // Then get the list of running users. 1526 final int[] runningUsers; 1527 try { 1528 runningUsers = ActivityManager.getService().getRunningUserIds(); 1529 } catch (RemoteException e) { 1530 Log.w(LOG_TAG, "Unable to access ActivityManagerService"); 1531 return; 1532 } 1533 // Then re-calculate the effective restrictions and apply, only for running users. 1534 // It's okay if a new user has started after the getRunningUserIds() call, 1535 // because we'll do the same thing (re-calculate the restrictions and apply) 1536 // when we start a user. 1537 synchronized (mRestrictionsLock) { 1538 for (int i = 0; i < runningUsers.length; i++) { 1539 applyUserRestrictionsLR(runningUsers[i]); 1540 } 1541 } 1542 } 1543 }; 1544 mHandler.post(r); 1545 } 1546 1547 /** 1548 * Check if we've hit the limit of how many users can be created. 1549 */ 1550 private boolean isUserLimitReached() { 1551 int count; 1552 synchronized (mUsersLock) { 1553 count = getAliveUsersExcludingGuestsCountLU(); 1554 } 1555 return count >= UserManager.getMaxSupportedUsers(); 1556 } 1557 1558 @Override 1559 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1560 checkManageUsersPermission("check if more managed profiles can be added."); 1561 if (ActivityManager.isLowRamDeviceStatic()) { 1562 return false; 1563 } 1564 if (!mContext.getPackageManager().hasSystemFeature( 1565 PackageManager.FEATURE_MANAGED_USERS)) { 1566 return false; 1567 } 1568 // Limit number of managed profiles that can be created 1569 final int managedProfilesCount = getProfiles(userId, false).size() - 1; 1570 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1571 if (managedProfilesCount - profilesRemovedCount >= getMaxManagedProfiles()) { 1572 return false; 1573 } 1574 synchronized(mUsersLock) { 1575 UserInfo userInfo = getUserInfoLU(userId); 1576 if (userInfo == null || !userInfo.canHaveProfile()) { 1577 return false; 1578 } 1579 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1580 - profilesRemovedCount; 1581 // We allow creating a managed profile in the special case where there is only one user. 1582 return usersCountAfterRemoving == 1 1583 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1584 } 1585 } 1586 1587 private int getAliveUsersExcludingGuestsCountLU() { 1588 int aliveUserCount = 0; 1589 final int totalUserCount = mUsers.size(); 1590 // Skip over users being removed 1591 for (int i = 0; i < totalUserCount; i++) { 1592 UserInfo user = mUsers.valueAt(i).info; 1593 if (!mRemovingUserIds.get(user.id) && !user.isGuest()) { 1594 aliveUserCount++; 1595 } 1596 } 1597 return aliveUserCount; 1598 } 1599 1600 /** 1601 * Enforces that only the system UID or root's UID or apps that have the 1602 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1603 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1604 * permissions can make certain calls to the UserManager. 1605 * 1606 * @param message used as message if SecurityException is thrown 1607 * @throws SecurityException if the caller does not have enough privilege. 1608 */ 1609 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1610 final int uid = Binder.getCallingUid(); 1611 if (uid != Process.SYSTEM_UID && uid != 0 1612 && ActivityManager.checkComponentPermission( 1613 Manifest.permission.MANAGE_USERS, 1614 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1615 && ActivityManager.checkComponentPermission( 1616 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1617 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1618 throw new SecurityException( 1619 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1620 + message); 1621 } 1622 } 1623 1624 /** 1625 * Enforces that only the system UID or root's UID or apps that have the 1626 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1627 * permission can make certain calls to the UserManager. 1628 * 1629 * @param message used as message if SecurityException is thrown 1630 * @throws SecurityException if the caller is not system or root 1631 * @see #hasManageUsersPermission() 1632 */ 1633 private static final void checkManageUsersPermission(String message) { 1634 if (!hasManageUsersPermission()) { 1635 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1636 } 1637 } 1638 1639 /** 1640 * Enforces that only the system UID or root's UID or apps that have the 1641 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1642 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} 1643 * can make certain calls to the UserManager. 1644 * 1645 * @param message used as message if SecurityException is thrown 1646 * @throws SecurityException if the caller is not system or root 1647 * @see #hasManageOrCreateUsersPermission() 1648 */ 1649 private static final void checkManageOrCreateUsersPermission(String message) { 1650 if (!hasManageOrCreateUsersPermission()) { 1651 throw new SecurityException( 1652 "You either need MANAGE_USERS or CREATE_USERS permission to: " + message); 1653 } 1654 } 1655 1656 /** 1657 * Similar to {@link #checkManageOrCreateUsersPermission(String)} but when the caller is tries 1658 * to create user/profiles other than what is allowed for 1659 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} permission, then it will only 1660 * allow callers with {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} permission. 1661 */ 1662 private static final void checkManageOrCreateUsersPermission(int creationFlags) { 1663 if ((creationFlags & ~ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION) == 0) { 1664 if (!hasManageOrCreateUsersPermission()) { 1665 throw new SecurityException("You either need MANAGE_USERS or CREATE_USERS " 1666 + "permission to create an user with flags: " + creationFlags); 1667 } 1668 } else if (!hasManageUsersPermission()) { 1669 throw new SecurityException("You need MANAGE_USERS permission to create an user " 1670 + " with flags: " + creationFlags); 1671 } 1672 } 1673 1674 /** 1675 * @return whether the calling UID is system UID or root's UID or the calling app has the 1676 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1677 */ 1678 private static final boolean hasManageUsersPermission() { 1679 final int callingUid = Binder.getCallingUid(); 1680 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1681 || callingUid == Process.ROOT_UID 1682 || ActivityManager.checkComponentPermission( 1683 android.Manifest.permission.MANAGE_USERS, 1684 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1685 } 1686 1687 /** 1688 * @return whether the calling UID is system UID or root's UID or the calling app has the 1689 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1690 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS}. 1691 */ 1692 private static final boolean hasManageOrCreateUsersPermission() { 1693 final int callingUid = Binder.getCallingUid(); 1694 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1695 || callingUid == Process.ROOT_UID 1696 || ActivityManager.checkComponentPermission( 1697 android.Manifest.permission.MANAGE_USERS, 1698 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED 1699 || ActivityManager.checkComponentPermission( 1700 android.Manifest.permission.CREATE_USERS, 1701 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1702 } 1703 1704 /** 1705 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1706 * UserManager. 1707 * 1708 * @param message used as message if SecurityException is thrown 1709 * @throws SecurityException if the caller is not system or root 1710 */ 1711 private static void checkSystemOrRoot(String message) { 1712 final int uid = Binder.getCallingUid(); 1713 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1714 throw new SecurityException("Only system may: " + message); 1715 } 1716 } 1717 1718 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1719 try { 1720 File dir = new File(mUsersDir, Integer.toString(info.id)); 1721 File file = new File(dir, USER_PHOTO_FILENAME); 1722 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1723 if (!dir.exists()) { 1724 dir.mkdir(); 1725 FileUtils.setPermissions( 1726 dir.getPath(), 1727 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1728 -1, -1); 1729 } 1730 FileOutputStream os; 1731 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1732 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1733 info.iconPath = file.getAbsolutePath(); 1734 } 1735 try { 1736 os.close(); 1737 } catch (IOException ioe) { 1738 // What the ... ! 1739 } 1740 tmp.delete(); 1741 } catch (FileNotFoundException e) { 1742 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1743 } 1744 } 1745 1746 /** 1747 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1748 * cache it elsewhere. 1749 * @return the array of user ids. 1750 */ 1751 public int[] getUserIds() { 1752 synchronized (mUsersLock) { 1753 return mUserIds; 1754 } 1755 } 1756 1757 private void readUserListLP() { 1758 if (!mUserListFile.exists()) { 1759 fallbackToSingleUserLP(); 1760 return; 1761 } 1762 FileInputStream fis = null; 1763 AtomicFile userListFile = new AtomicFile(mUserListFile); 1764 try { 1765 fis = userListFile.openRead(); 1766 XmlPullParser parser = Xml.newPullParser(); 1767 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1768 int type; 1769 while ((type = parser.next()) != XmlPullParser.START_TAG 1770 && type != XmlPullParser.END_DOCUMENT) { 1771 // Skip 1772 } 1773 1774 if (type != XmlPullParser.START_TAG) { 1775 Slog.e(LOG_TAG, "Unable to read user list"); 1776 fallbackToSingleUserLP(); 1777 return; 1778 } 1779 1780 mNextSerialNumber = -1; 1781 if (parser.getName().equals(TAG_USERS)) { 1782 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1783 if (lastSerialNumber != null) { 1784 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1785 } 1786 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1787 if (versionNumber != null) { 1788 mUserVersion = Integer.parseInt(versionNumber); 1789 } 1790 } 1791 1792 // Pre-O global user restriction were stored as a single bundle (as opposed to per-user 1793 // currently), take care of it in case of upgrade. 1794 Bundle oldDevicePolicyGlobalUserRestrictions = null; 1795 1796 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1797 if (type == XmlPullParser.START_TAG) { 1798 final String name = parser.getName(); 1799 if (name.equals(TAG_USER)) { 1800 String id = parser.getAttributeValue(null, ATTR_ID); 1801 1802 UserData userData = readUserLP(Integer.parseInt(id)); 1803 1804 if (userData != null) { 1805 synchronized (mUsersLock) { 1806 mUsers.put(userData.info.id, userData); 1807 if (mNextSerialNumber < 0 1808 || mNextSerialNumber <= userData.info.id) { 1809 mNextSerialNumber = userData.info.id + 1; 1810 } 1811 } 1812 } 1813 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1814 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1815 && type != XmlPullParser.END_TAG) { 1816 if (type == XmlPullParser.START_TAG) { 1817 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1818 synchronized (mGuestRestrictions) { 1819 UserRestrictionsUtils 1820 .readRestrictions(parser, mGuestRestrictions); 1821 } 1822 } 1823 break; 1824 } 1825 } 1826 } else if (name.equals(TAG_DEVICE_OWNER_USER_ID) 1827 // Legacy name, should only be encountered when upgrading from pre-O. 1828 || name.equals(TAG_GLOBAL_RESTRICTION_OWNER_ID)) { 1829 String ownerUserId = parser.getAttributeValue(null, ATTR_ID); 1830 if (ownerUserId != null) { 1831 mDeviceOwnerUserId = Integer.parseInt(ownerUserId); 1832 } 1833 } else if (name.equals(TAG_DEVICE_POLICY_RESTRICTIONS)) { 1834 // Should only happen when upgrading from pre-O (version < 7). 1835 oldDevicePolicyGlobalUserRestrictions = 1836 UserRestrictionsUtils.readRestrictions(parser); 1837 } 1838 } 1839 } 1840 1841 updateUserIds(); 1842 upgradeIfNecessaryLP(oldDevicePolicyGlobalUserRestrictions); 1843 } catch (IOException | XmlPullParserException e) { 1844 fallbackToSingleUserLP(); 1845 } finally { 1846 IoUtils.closeQuietly(fis); 1847 } 1848 } 1849 1850 /** 1851 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1852 * @param oldGlobalUserRestrictions Pre-O global device policy restrictions. 1853 */ 1854 private void upgradeIfNecessaryLP(Bundle oldGlobalUserRestrictions) { 1855 final int originalVersion = mUserVersion; 1856 int userVersion = mUserVersion; 1857 if (userVersion < 1) { 1858 // Assign a proper name for the owner, if not initialized correctly before 1859 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1860 if ("Primary".equals(userData.info.name)) { 1861 userData.info.name = 1862 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1863 scheduleWriteUser(userData); 1864 } 1865 userVersion = 1; 1866 } 1867 1868 if (userVersion < 2) { 1869 // Owner should be marked as initialized 1870 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1871 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1872 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1873 scheduleWriteUser(userData); 1874 } 1875 userVersion = 2; 1876 } 1877 1878 1879 if (userVersion < 4) { 1880 userVersion = 4; 1881 } 1882 1883 if (userVersion < 5) { 1884 initDefaultGuestRestrictions(); 1885 userVersion = 5; 1886 } 1887 1888 if (userVersion < 6) { 1889 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1890 synchronized (mUsersLock) { 1891 for (int i = 0; i < mUsers.size(); i++) { 1892 UserData userData = mUsers.valueAt(i); 1893 // In non-split mode, only user 0 can have restricted profiles 1894 if (!splitSystemUser && userData.info.isRestricted() 1895 && (userData.info.restrictedProfileParentId 1896 == UserInfo.NO_PROFILE_GROUP_ID)) { 1897 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1898 scheduleWriteUser(userData); 1899 } 1900 } 1901 } 1902 userVersion = 6; 1903 } 1904 1905 if (userVersion < 7) { 1906 // Previously only one user could enforce global restrictions, now it is per-user. 1907 synchronized (mRestrictionsLock) { 1908 if (!UserRestrictionsUtils.isEmpty(oldGlobalUserRestrictions) 1909 && mDeviceOwnerUserId != UserHandle.USER_NULL) { 1910 mDevicePolicyGlobalUserRestrictions.put( 1911 mDeviceOwnerUserId, oldGlobalUserRestrictions); 1912 } 1913 // ENSURE_VERIFY_APPS is now enforced globally even if put by profile owner, so move 1914 // it from local to global bundle for all users who set it. 1915 UserRestrictionsUtils.moveRestriction(UserManager.ENSURE_VERIFY_APPS, 1916 mDevicePolicyLocalUserRestrictions, mDevicePolicyGlobalUserRestrictions 1917 ); 1918 } 1919 userVersion = 7; 1920 } 1921 1922 if (userVersion < USER_VERSION) { 1923 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1924 + USER_VERSION); 1925 } else { 1926 mUserVersion = userVersion; 1927 1928 if (originalVersion < mUserVersion) { 1929 writeUserListLP(); 1930 } 1931 } 1932 } 1933 1934 private void fallbackToSingleUserLP() { 1935 int flags = UserInfo.FLAG_INITIALIZED; 1936 // In split system user mode, the admin and primary flags are assigned to the first human 1937 // user. 1938 if (!UserManager.isSplitSystemUser()) { 1939 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1940 } 1941 // Create the system user 1942 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 1943 UserData userData = putUserInfo(system); 1944 mNextSerialNumber = MIN_USER_ID; 1945 mUserVersion = USER_VERSION; 1946 1947 Bundle restrictions = new Bundle(); 1948 try { 1949 final String[] defaultFirstUserRestrictions = mContext.getResources().getStringArray( 1950 com.android.internal.R.array.config_defaultFirstUserRestrictions); 1951 for (String userRestriction : defaultFirstUserRestrictions) { 1952 if (UserRestrictionsUtils.isValidRestriction(userRestriction)) { 1953 restrictions.putBoolean(userRestriction, true); 1954 } 1955 } 1956 } catch (Resources.NotFoundException e) { 1957 Log.e(LOG_TAG, "Couldn't find resource: config_defaultFirstUserRestrictions", e); 1958 } 1959 1960 if (!restrictions.isEmpty()) { 1961 synchronized (mRestrictionsLock) { 1962 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1963 } 1964 } 1965 1966 updateUserIds(); 1967 initDefaultGuestRestrictions(); 1968 1969 writeUserLP(userData); 1970 writeUserListLP(); 1971 } 1972 1973 private String getOwnerName() { 1974 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 1975 } 1976 1977 private void scheduleWriteUser(UserData UserData) { 1978 if (DBG) { 1979 debug("scheduleWriteUser"); 1980 } 1981 // No need to wrap it within a lock -- worst case, we'll just post the same message 1982 // twice. 1983 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 1984 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 1985 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1986 } 1987 } 1988 1989 private void writeUserLP(UserData userData) { 1990 if (DBG) { 1991 debug("writeUserLP " + userData); 1992 } 1993 FileOutputStream fos = null; 1994 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 1995 try { 1996 fos = userFile.startWrite(); 1997 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1998 writeUserLP(userData, bos); 1999 userFile.finishWrite(fos); 2000 } catch (Exception ioe) { 2001 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 2002 userFile.failWrite(fos); 2003 } 2004 } 2005 2006 /* 2007 * Writes the user file in this format: 2008 * 2009 * <user flags="20039023" id="0"> 2010 * <name>Primary</name> 2011 * </user> 2012 */ 2013 @VisibleForTesting 2014 void writeUserLP(UserData userData, OutputStream os) 2015 throws IOException, XmlPullParserException { 2016 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2017 final XmlSerializer serializer = new FastXmlSerializer(); 2018 serializer.setOutput(os, StandardCharsets.UTF_8.name()); 2019 serializer.startDocument(null, true); 2020 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2021 2022 final UserInfo userInfo = userData.info; 2023 serializer.startTag(null, TAG_USER); 2024 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 2025 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 2026 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 2027 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 2028 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 2029 Long.toString(userInfo.lastLoggedInTime)); 2030 if (userInfo.lastLoggedInFingerprint != null) { 2031 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 2032 userInfo.lastLoggedInFingerprint); 2033 } 2034 if (userInfo.iconPath != null) { 2035 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 2036 } 2037 if (userInfo.partial) { 2038 serializer.attribute(null, ATTR_PARTIAL, "true"); 2039 } 2040 if (userInfo.guestToRemove) { 2041 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 2042 } 2043 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 2044 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 2045 Integer.toString(userInfo.profileGroupId)); 2046 } 2047 serializer.attribute(null, ATTR_PROFILE_BADGE, 2048 Integer.toString(userInfo.profileBadge)); 2049 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 2050 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 2051 Integer.toString(userInfo.restrictedProfileParentId)); 2052 } 2053 // Write seed data 2054 if (userData.persistSeedData) { 2055 if (userData.seedAccountName != null) { 2056 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 2057 } 2058 if (userData.seedAccountType != null) { 2059 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 2060 } 2061 } 2062 if (userInfo.name != null) { 2063 serializer.startTag(null, TAG_NAME); 2064 serializer.text(userInfo.name); 2065 serializer.endTag(null, TAG_NAME); 2066 } 2067 synchronized (mRestrictionsLock) { 2068 UserRestrictionsUtils.writeRestrictions(serializer, 2069 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 2070 UserRestrictionsUtils.writeRestrictions(serializer, 2071 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 2072 TAG_DEVICE_POLICY_RESTRICTIONS); 2073 UserRestrictionsUtils.writeRestrictions(serializer, 2074 mDevicePolicyGlobalUserRestrictions.get(userInfo.id), 2075 TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS); 2076 } 2077 2078 if (userData.account != null) { 2079 serializer.startTag(null, TAG_ACCOUNT); 2080 serializer.text(userData.account); 2081 serializer.endTag(null, TAG_ACCOUNT); 2082 } 2083 2084 if (userData.persistSeedData && userData.seedAccountOptions != null) { 2085 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2086 userData.seedAccountOptions.saveToXml(serializer); 2087 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2088 } 2089 2090 serializer.endTag(null, TAG_USER); 2091 2092 serializer.endDocument(); 2093 } 2094 2095 /* 2096 * Writes the user list file in this format: 2097 * 2098 * <users nextSerialNumber="3"> 2099 * <user id="0"></user> 2100 * <user id="2"></user> 2101 * </users> 2102 */ 2103 private void writeUserListLP() { 2104 if (DBG) { 2105 debug("writeUserList"); 2106 } 2107 FileOutputStream fos = null; 2108 AtomicFile userListFile = new AtomicFile(mUserListFile); 2109 try { 2110 fos = userListFile.startWrite(); 2111 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2112 2113 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2114 final XmlSerializer serializer = new FastXmlSerializer(); 2115 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2116 serializer.startDocument(null, true); 2117 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2118 2119 serializer.startTag(null, TAG_USERS); 2120 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 2121 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 2122 2123 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 2124 synchronized (mGuestRestrictions) { 2125 UserRestrictionsUtils 2126 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 2127 } 2128 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 2129 serializer.startTag(null, TAG_DEVICE_OWNER_USER_ID); 2130 serializer.attribute(null, ATTR_ID, Integer.toString(mDeviceOwnerUserId)); 2131 serializer.endTag(null, TAG_DEVICE_OWNER_USER_ID); 2132 int[] userIdsToWrite; 2133 synchronized (mUsersLock) { 2134 userIdsToWrite = new int[mUsers.size()]; 2135 for (int i = 0; i < userIdsToWrite.length; i++) { 2136 UserInfo user = mUsers.valueAt(i).info; 2137 userIdsToWrite[i] = user.id; 2138 } 2139 } 2140 for (int id : userIdsToWrite) { 2141 serializer.startTag(null, TAG_USER); 2142 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 2143 serializer.endTag(null, TAG_USER); 2144 } 2145 2146 serializer.endTag(null, TAG_USERS); 2147 2148 serializer.endDocument(); 2149 userListFile.finishWrite(fos); 2150 } catch (Exception e) { 2151 userListFile.failWrite(fos); 2152 Slog.e(LOG_TAG, "Error writing user list"); 2153 } 2154 } 2155 2156 private UserData readUserLP(int id) { 2157 FileInputStream fis = null; 2158 try { 2159 AtomicFile userFile = 2160 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 2161 fis = userFile.openRead(); 2162 return readUserLP(id, fis); 2163 } catch (IOException ioe) { 2164 Slog.e(LOG_TAG, "Error reading user list"); 2165 } catch (XmlPullParserException pe) { 2166 Slog.e(LOG_TAG, "Error reading user list"); 2167 } finally { 2168 IoUtils.closeQuietly(fis); 2169 } 2170 return null; 2171 } 2172 2173 @VisibleForTesting 2174 UserData readUserLP(int id, InputStream is) throws IOException, 2175 XmlPullParserException { 2176 int flags = 0; 2177 int serialNumber = id; 2178 String name = null; 2179 String account = null; 2180 String iconPath = null; 2181 long creationTime = 0L; 2182 long lastLoggedInTime = 0L; 2183 String lastLoggedInFingerprint = null; 2184 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 2185 int profileBadge = 0; 2186 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 2187 boolean partial = false; 2188 boolean guestToRemove = false; 2189 boolean persistSeedData = false; 2190 String seedAccountName = null; 2191 String seedAccountType = null; 2192 PersistableBundle seedAccountOptions = null; 2193 Bundle baseRestrictions = null; 2194 Bundle localRestrictions = null; 2195 Bundle globalRestrictions = null; 2196 2197 XmlPullParser parser = Xml.newPullParser(); 2198 parser.setInput(is, StandardCharsets.UTF_8.name()); 2199 int type; 2200 while ((type = parser.next()) != XmlPullParser.START_TAG 2201 && type != XmlPullParser.END_DOCUMENT) { 2202 // Skip 2203 } 2204 2205 if (type != XmlPullParser.START_TAG) { 2206 Slog.e(LOG_TAG, "Unable to read user " + id); 2207 return null; 2208 } 2209 2210 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 2211 int storedId = readIntAttribute(parser, ATTR_ID, -1); 2212 if (storedId != id) { 2213 Slog.e(LOG_TAG, "User id does not match the file name"); 2214 return null; 2215 } 2216 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 2217 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 2218 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 2219 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 2220 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 2221 lastLoggedInFingerprint = parser.getAttributeValue(null, 2222 ATTR_LAST_LOGGED_IN_FINGERPRINT); 2223 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 2224 UserInfo.NO_PROFILE_GROUP_ID); 2225 profileBadge = readIntAttribute(parser, ATTR_PROFILE_BADGE, 0); 2226 restrictedProfileParentId = readIntAttribute(parser, 2227 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 2228 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 2229 if ("true".equals(valueString)) { 2230 partial = true; 2231 } 2232 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 2233 if ("true".equals(valueString)) { 2234 guestToRemove = true; 2235 } 2236 2237 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 2238 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 2239 if (seedAccountName != null || seedAccountType != null) { 2240 persistSeedData = true; 2241 } 2242 2243 int outerDepth = parser.getDepth(); 2244 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 2245 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2246 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2247 continue; 2248 } 2249 String tag = parser.getName(); 2250 if (TAG_NAME.equals(tag)) { 2251 type = parser.next(); 2252 if (type == XmlPullParser.TEXT) { 2253 name = parser.getText(); 2254 } 2255 } else if (TAG_RESTRICTIONS.equals(tag)) { 2256 baseRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2257 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 2258 localRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2259 } else if (TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS.equals(tag)) { 2260 globalRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2261 } else if (TAG_ACCOUNT.equals(tag)) { 2262 type = parser.next(); 2263 if (type == XmlPullParser.TEXT) { 2264 account = parser.getText(); 2265 } 2266 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 2267 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 2268 persistSeedData = true; 2269 } 2270 } 2271 } 2272 2273 // Create the UserInfo object that gets passed around 2274 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 2275 userInfo.serialNumber = serialNumber; 2276 userInfo.creationTime = creationTime; 2277 userInfo.lastLoggedInTime = lastLoggedInTime; 2278 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 2279 userInfo.partial = partial; 2280 userInfo.guestToRemove = guestToRemove; 2281 userInfo.profileGroupId = profileGroupId; 2282 userInfo.profileBadge = profileBadge; 2283 userInfo.restrictedProfileParentId = restrictedProfileParentId; 2284 2285 // Create the UserData object that's internal to this class 2286 UserData userData = new UserData(); 2287 userData.info = userInfo; 2288 userData.account = account; 2289 userData.seedAccountName = seedAccountName; 2290 userData.seedAccountType = seedAccountType; 2291 userData.persistSeedData = persistSeedData; 2292 userData.seedAccountOptions = seedAccountOptions; 2293 2294 synchronized (mRestrictionsLock) { 2295 if (baseRestrictions != null) { 2296 mBaseUserRestrictions.put(id, baseRestrictions); 2297 } 2298 if (localRestrictions != null) { 2299 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 2300 } 2301 if (globalRestrictions != null) { 2302 mDevicePolicyGlobalUserRestrictions.put(id, globalRestrictions); 2303 } 2304 } 2305 return userData; 2306 } 2307 2308 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 2309 String valueString = parser.getAttributeValue(null, attr); 2310 if (valueString == null) return defaultValue; 2311 try { 2312 return Integer.parseInt(valueString); 2313 } catch (NumberFormatException nfe) { 2314 return defaultValue; 2315 } 2316 } 2317 2318 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 2319 String valueString = parser.getAttributeValue(null, attr); 2320 if (valueString == null) return defaultValue; 2321 try { 2322 return Long.parseLong(valueString); 2323 } catch (NumberFormatException nfe) { 2324 return defaultValue; 2325 } 2326 } 2327 2328 /** 2329 * Removes the app restrictions file for a specific package and user id, if it exists. 2330 */ 2331 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 2332 synchronized (mPackagesLock) { 2333 File dir = Environment.getUserSystemDirectory(userId); 2334 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 2335 if (resFile.exists()) { 2336 resFile.delete(); 2337 } 2338 } 2339 } 2340 2341 @Override 2342 public UserInfo createProfileForUser(String name, int flags, int userId, 2343 String[] disallowedPackages) { 2344 checkManageOrCreateUsersPermission(flags); 2345 return createUserInternal(name, flags, userId, disallowedPackages); 2346 } 2347 2348 @Override 2349 public UserInfo createProfileForUserEvenWhenDisallowed(String name, int flags, int userId, 2350 String[] disallowedPackages) { 2351 checkManageOrCreateUsersPermission(flags); 2352 return createUserInternalUnchecked(name, flags, userId, disallowedPackages); 2353 } 2354 2355 @Override 2356 public boolean removeUserEvenWhenDisallowed(@UserIdInt int userHandle) { 2357 checkManageOrCreateUsersPermission("Only the system can remove users"); 2358 return removeUserUnchecked(userHandle); 2359 } 2360 2361 @Override 2362 public UserInfo createUser(String name, int flags) { 2363 checkManageOrCreateUsersPermission(flags); 2364 return createUserInternal(name, flags, UserHandle.USER_NULL); 2365 } 2366 2367 private UserInfo createUserInternal(String name, int flags, int parentId) { 2368 return createUserInternal(name, flags, parentId, null); 2369 } 2370 2371 private UserInfo createUserInternal(String name, int flags, int parentId, 2372 String[] disallowedPackages) { 2373 String restriction = ((flags & UserInfo.FLAG_MANAGED_PROFILE) != 0) 2374 ? UserManager.DISALLOW_ADD_MANAGED_PROFILE 2375 : UserManager.DISALLOW_ADD_USER; 2376 if (hasUserRestriction(restriction, UserHandle.getCallingUserId())) { 2377 Log.w(LOG_TAG, "Cannot add user. " + restriction + " is enabled."); 2378 return null; 2379 } 2380 return createUserInternalUnchecked(name, flags, parentId, disallowedPackages); 2381 } 2382 2383 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId, 2384 String[] disallowedPackages) { 2385 DeviceStorageMonitorInternal dsm = LocalServices 2386 .getService(DeviceStorageMonitorInternal.class); 2387 if (dsm.isMemoryLow()) { 2388 Log.w(LOG_TAG, "Cannot add user. Not enough space on disk."); 2389 return null; 2390 } 2391 if (ActivityManager.isLowRamDeviceStatic()) { 2392 return null; 2393 } 2394 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 2395 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 2396 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 2397 final boolean isDemo = (flags & UserInfo.FLAG_DEMO) != 0; 2398 final long ident = Binder.clearCallingIdentity(); 2399 UserInfo userInfo; 2400 UserData userData; 2401 final int userId; 2402 try { 2403 synchronized (mPackagesLock) { 2404 UserData parent = null; 2405 if (parentId != UserHandle.USER_NULL) { 2406 synchronized (mUsersLock) { 2407 parent = getUserDataLU(parentId); 2408 } 2409 if (parent == null) return null; 2410 } 2411 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 2412 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 2413 return null; 2414 } 2415 if (!isGuest && !isManagedProfile && !isDemo && isUserLimitReached()) { 2416 // If we're not adding a guest/demo user or a managed profile and the limit has 2417 // been reached, cannot add a user. 2418 return null; 2419 } 2420 // If we're adding a guest and there already exists one, bail. 2421 if (isGuest && findCurrentGuestUser() != null) { 2422 return null; 2423 } 2424 // In legacy mode, restricted profile's parent can only be the owner user 2425 if (isRestricted && !UserManager.isSplitSystemUser() 2426 && (parentId != UserHandle.USER_SYSTEM)) { 2427 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 2428 return null; 2429 } 2430 if (isRestricted && UserManager.isSplitSystemUser()) { 2431 if (parent == null) { 2432 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 2433 + "specified"); 2434 return null; 2435 } 2436 if (!parent.info.canHaveProfile()) { 2437 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 2438 + "created for the specified parent user id " + parentId); 2439 return null; 2440 } 2441 } 2442 if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0 2443 && (flags & UserInfo.FLAG_DEMO) == 0) { 2444 Log.e(LOG_TAG, 2445 "Ephemeral users are supported on split-system-user systems only."); 2446 return null; 2447 } 2448 // In split system user mode, we assign the first human user the primary flag. 2449 // And if there is no device owner, we also assign the admin flag to primary user. 2450 if (UserManager.isSplitSystemUser() 2451 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2452 flags |= UserInfo.FLAG_PRIMARY; 2453 synchronized (mUsersLock) { 2454 if (!mIsDeviceManaged) { 2455 flags |= UserInfo.FLAG_ADMIN; 2456 } 2457 } 2458 } 2459 2460 userId = getNextAvailableId(); 2461 Environment.getUserSystemDirectory(userId).mkdirs(); 2462 boolean ephemeralGuests = Resources.getSystem() 2463 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2464 2465 synchronized (mUsersLock) { 2466 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2467 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2468 || (parent != null && parent.info.isEphemeral())) { 2469 flags |= UserInfo.FLAG_EPHEMERAL; 2470 } 2471 2472 userInfo = new UserInfo(userId, name, null, flags); 2473 userInfo.serialNumber = mNextSerialNumber++; 2474 long now = System.currentTimeMillis(); 2475 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2476 userInfo.partial = true; 2477 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2478 if (isManagedProfile && parentId != UserHandle.USER_NULL) { 2479 userInfo.profileBadge = getFreeProfileBadgeLU(parentId); 2480 } 2481 userData = new UserData(); 2482 userData.info = userInfo; 2483 mUsers.put(userId, userData); 2484 } 2485 writeUserLP(userData); 2486 writeUserListLP(); 2487 if (parent != null) { 2488 if (isManagedProfile) { 2489 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2490 parent.info.profileGroupId = parent.info.id; 2491 writeUserLP(parent); 2492 } 2493 userInfo.profileGroupId = parent.info.profileGroupId; 2494 } else if (isRestricted) { 2495 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2496 parent.info.restrictedProfileParentId = parent.info.id; 2497 writeUserLP(parent); 2498 } 2499 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2500 } 2501 } 2502 } 2503 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2504 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2505 mUserDataPreparer.prepareUserData(userId, userInfo.serialNumber, 2506 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2507 mPm.createNewUser(userId, disallowedPackages); 2508 userInfo.partial = false; 2509 synchronized (mPackagesLock) { 2510 writeUserLP(userData); 2511 } 2512 updateUserIds(); 2513 Bundle restrictions = new Bundle(); 2514 if (isGuest) { 2515 synchronized (mGuestRestrictions) { 2516 restrictions.putAll(mGuestRestrictions); 2517 } 2518 } 2519 synchronized (mRestrictionsLock) { 2520 mBaseUserRestrictions.append(userId, restrictions); 2521 } 2522 mPm.onNewUserCreated(userId); 2523 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2524 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2525 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2526 android.Manifest.permission.MANAGE_USERS); 2527 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED 2528 : (isDemo ? TRON_DEMO_CREATED : TRON_USER_CREATED), 1); 2529 } finally { 2530 Binder.restoreCallingIdentity(ident); 2531 } 2532 return userInfo; 2533 } 2534 2535 @VisibleForTesting 2536 UserData putUserInfo(UserInfo userInfo) { 2537 final UserData userData = new UserData(); 2538 userData.info = userInfo; 2539 synchronized (mUsers) { 2540 mUsers.put(userInfo.id, userData); 2541 } 2542 return userData; 2543 } 2544 2545 @VisibleForTesting 2546 void removeUserInfo(int userId) { 2547 synchronized (mUsers) { 2548 mUsers.remove(userId); 2549 } 2550 } 2551 2552 /** 2553 * @hide 2554 */ 2555 @Override 2556 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2557 checkManageOrCreateUsersPermission("setupRestrictedProfile"); 2558 final UserInfo user = createProfileForUser( 2559 name, UserInfo.FLAG_RESTRICTED, parentUserId, null); 2560 if (user == null) { 2561 return null; 2562 } 2563 long identity = Binder.clearCallingIdentity(); 2564 try { 2565 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2566 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2567 // the putIntForUser() will fail. 2568 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2569 android.provider.Settings.Secure.LOCATION_MODE, 2570 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2571 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2572 } finally { 2573 Binder.restoreCallingIdentity(identity); 2574 } 2575 return user; 2576 } 2577 2578 /** 2579 * Find the current guest user. If the Guest user is partial, 2580 * then do not include it in the results as it is about to die. 2581 */ 2582 private UserInfo findCurrentGuestUser() { 2583 synchronized (mUsersLock) { 2584 final int size = mUsers.size(); 2585 for (int i = 0; i < size; i++) { 2586 final UserInfo user = mUsers.valueAt(i).info; 2587 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2588 return user; 2589 } 2590 } 2591 } 2592 return null; 2593 } 2594 2595 /** 2596 * Mark this guest user for deletion to allow us to create another guest 2597 * and switch to that user before actually removing this guest. 2598 * @param userHandle the userid of the current guest 2599 * @return whether the user could be marked for deletion 2600 */ 2601 @Override 2602 public boolean markGuestForDeletion(int userHandle) { 2603 checkManageUsersPermission("Only the system can remove users"); 2604 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2605 UserManager.DISALLOW_REMOVE_USER, false)) { 2606 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2607 return false; 2608 } 2609 2610 long ident = Binder.clearCallingIdentity(); 2611 try { 2612 final UserData userData; 2613 synchronized (mPackagesLock) { 2614 synchronized (mUsersLock) { 2615 userData = mUsers.get(userHandle); 2616 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2617 return false; 2618 } 2619 } 2620 if (!userData.info.isGuest()) { 2621 return false; 2622 } 2623 // We set this to a guest user that is to be removed. This is a temporary state 2624 // where we are allowed to add new Guest users, even if this one is still not 2625 // removed. This user will still show up in getUserInfo() calls. 2626 // If we don't get around to removing this Guest user, it will be purged on next 2627 // startup. 2628 userData.info.guestToRemove = true; 2629 // Mark it as disabled, so that it isn't returned any more when 2630 // profiles are queried. 2631 userData.info.flags |= UserInfo.FLAG_DISABLED; 2632 writeUserLP(userData); 2633 } 2634 } finally { 2635 Binder.restoreCallingIdentity(ident); 2636 } 2637 return true; 2638 } 2639 2640 /** 2641 * Removes a user and all data directories created for that user. This method should be called 2642 * after the user's processes have been terminated. 2643 * @param userHandle the user's id 2644 */ 2645 @Override 2646 public boolean removeUser(int userHandle) { 2647 Slog.i(LOG_TAG, "removeUser u" + userHandle); 2648 checkManageOrCreateUsersPermission("Only the system can remove users"); 2649 2650 final boolean isManagedProfile; 2651 synchronized (mUsersLock) { 2652 UserInfo userInfo = getUserInfoLU(userHandle); 2653 isManagedProfile = userInfo != null && userInfo.isManagedProfile(); 2654 } 2655 String restriction = isManagedProfile 2656 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE : UserManager.DISALLOW_REMOVE_USER; 2657 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean(restriction, false)) { 2658 Log.w(LOG_TAG, "Cannot remove user. " + restriction + " is enabled."); 2659 return false; 2660 } 2661 return removeUserUnchecked(userHandle); 2662 } 2663 2664 private boolean removeUserUnchecked(int userHandle) { 2665 long ident = Binder.clearCallingIdentity(); 2666 try { 2667 final UserData userData; 2668 int currentUser = ActivityManager.getCurrentUser(); 2669 if (currentUser == userHandle) { 2670 Log.w(LOG_TAG, "Current user cannot be removed"); 2671 return false; 2672 } 2673 synchronized (mPackagesLock) { 2674 synchronized (mUsersLock) { 2675 userData = mUsers.get(userHandle); 2676 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2677 return false; 2678 } 2679 2680 addRemovingUserIdLocked(userHandle); 2681 } 2682 2683 try { 2684 mAppOpsService.removeUser(userHandle); 2685 } catch (RemoteException e) { 2686 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2687 } 2688 // Set this to a partially created user, so that the user will be purged 2689 // on next startup, in case the runtime stops now before stopping and 2690 // removing the user completely. 2691 userData.info.partial = true; 2692 // Mark it as disabled, so that it isn't returned any more when 2693 // profiles are queried. 2694 userData.info.flags |= UserInfo.FLAG_DISABLED; 2695 writeUserLP(userData); 2696 } 2697 2698 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2699 && userData.info.isManagedProfile()) { 2700 // Send broadcast to notify system that the user removed was a 2701 // managed user. 2702 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2703 } 2704 2705 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2706 int res; 2707 try { 2708 res = ActivityManager.getService().stopUser(userHandle, /* force= */ true, 2709 new IStopUserCallback.Stub() { 2710 @Override 2711 public void userStopped(int userId) { 2712 finishRemoveUser(userId); 2713 } 2714 @Override 2715 public void userStopAborted(int userId) { 2716 } 2717 }); 2718 } catch (RemoteException e) { 2719 return false; 2720 } 2721 return res == ActivityManager.USER_OP_SUCCESS; 2722 } finally { 2723 Binder.restoreCallingIdentity(ident); 2724 } 2725 } 2726 2727 @VisibleForTesting 2728 void addRemovingUserIdLocked(int userId) { 2729 // We remember deleted user IDs to prevent them from being 2730 // reused during the current boot; they can still be reused 2731 // after a reboot or recycling of userIds. 2732 mRemovingUserIds.put(userId, true); 2733 mRecentlyRemovedIds.add(userId); 2734 // Keep LRU queue of recently removed IDs for recycling 2735 if (mRecentlyRemovedIds.size() > MAX_RECENTLY_REMOVED_IDS_SIZE) { 2736 mRecentlyRemovedIds.removeFirst(); 2737 } 2738 } 2739 2740 void finishRemoveUser(final int userHandle) { 2741 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2742 // Let other services shutdown any activity and clean up their state before completely 2743 // wiping the user's system directory and removing from the user list 2744 long ident = Binder.clearCallingIdentity(); 2745 try { 2746 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2747 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2748 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2749 android.Manifest.permission.MANAGE_USERS, 2750 2751 new BroadcastReceiver() { 2752 @Override 2753 public void onReceive(Context context, Intent intent) { 2754 if (DBG) { 2755 Slog.i(LOG_TAG, 2756 "USER_REMOVED broadcast sent, cleaning up user data " 2757 + userHandle); 2758 } 2759 new Thread() { 2760 @Override 2761 public void run() { 2762 // Clean up any ActivityManager state 2763 LocalServices.getService(ActivityManagerInternal.class) 2764 .onUserRemoved(userHandle); 2765 removeUserState(userHandle); 2766 } 2767 }.start(); 2768 } 2769 }, 2770 2771 null, Activity.RESULT_OK, null, null); 2772 } finally { 2773 Binder.restoreCallingIdentity(ident); 2774 } 2775 } 2776 2777 private void removeUserState(final int userHandle) { 2778 try { 2779 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2780 } catch (IllegalStateException e) { 2781 // This may be simply because the user was partially created. 2782 Slog.i(LOG_TAG, 2783 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2784 } 2785 2786 // Cleanup gatekeeper secure user id 2787 try { 2788 final IGateKeeperService gk = GateKeeper.getService(); 2789 if (gk != null) { 2790 gk.clearSecureUserId(userHandle); 2791 } 2792 } catch (Exception ex) { 2793 Slog.w(LOG_TAG, "unable to clear GK secure user id"); 2794 } 2795 2796 // Cleanup package manager settings 2797 mPm.cleanUpUser(this, userHandle); 2798 2799 // Clean up all data before removing metadata 2800 mUserDataPreparer.destroyUserData(userHandle, 2801 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2802 2803 // Remove this user from the list 2804 synchronized (mUsersLock) { 2805 mUsers.remove(userHandle); 2806 mIsUserManaged.delete(userHandle); 2807 } 2808 synchronized (mUserStates) { 2809 mUserStates.delete(userHandle); 2810 } 2811 synchronized (mRestrictionsLock) { 2812 mBaseUserRestrictions.remove(userHandle); 2813 mAppliedUserRestrictions.remove(userHandle); 2814 mCachedEffectiveUserRestrictions.remove(userHandle); 2815 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2816 if (mDevicePolicyGlobalUserRestrictions.get(userHandle) != null) { 2817 mDevicePolicyGlobalUserRestrictions.remove(userHandle); 2818 applyUserRestrictionsForAllUsersLR(); 2819 } 2820 } 2821 // Update the user list 2822 synchronized (mPackagesLock) { 2823 writeUserListLP(); 2824 } 2825 // Remove user file 2826 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2827 userFile.delete(); 2828 updateUserIds(); 2829 if (RELEASE_DELETED_USER_ID) { 2830 synchronized (mUsers) { 2831 mRemovingUserIds.delete(userHandle); 2832 } 2833 } 2834 } 2835 2836 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2837 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2838 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2839 Intent.FLAG_RECEIVER_FOREGROUND); 2840 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2841 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2842 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2843 } 2844 2845 @Override 2846 public Bundle getApplicationRestrictions(String packageName) { 2847 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2848 } 2849 2850 @Override 2851 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2852 if (UserHandle.getCallingUserId() != userId 2853 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2854 checkSystemOrRoot("get application restrictions for other user/app " + packageName); 2855 } 2856 synchronized (mPackagesLock) { 2857 // Read the restrictions from XML 2858 return readApplicationRestrictionsLP(packageName, userId); 2859 } 2860 } 2861 2862 @Override 2863 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2864 int userId) { 2865 checkSystemOrRoot("set application restrictions"); 2866 if (restrictions != null) { 2867 restrictions.setDefusable(true); 2868 } 2869 synchronized (mPackagesLock) { 2870 if (restrictions == null || restrictions.isEmpty()) { 2871 cleanAppRestrictionsForPackage(packageName, userId); 2872 } else { 2873 // Write the restrictions to XML 2874 writeApplicationRestrictionsLP(packageName, restrictions, userId); 2875 } 2876 } 2877 2878 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2879 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2880 changeIntent.setPackage(packageName); 2881 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2882 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2883 } 2884 2885 private int getUidForPackage(String packageName) { 2886 long ident = Binder.clearCallingIdentity(); 2887 try { 2888 return mContext.getPackageManager().getApplicationInfo(packageName, 2889 PackageManager.MATCH_ANY_USER).uid; 2890 } catch (NameNotFoundException nnfe) { 2891 return -1; 2892 } finally { 2893 Binder.restoreCallingIdentity(ident); 2894 } 2895 } 2896 2897 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 2898 AtomicFile restrictionsFile = 2899 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2900 packageToRestrictionsFileName(packageName))); 2901 return readApplicationRestrictionsLP(restrictionsFile); 2902 } 2903 2904 @VisibleForTesting 2905 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 2906 final Bundle restrictions = new Bundle(); 2907 final ArrayList<String> values = new ArrayList<>(); 2908 if (!restrictionsFile.getBaseFile().exists()) { 2909 return restrictions; 2910 } 2911 2912 FileInputStream fis = null; 2913 try { 2914 fis = restrictionsFile.openRead(); 2915 XmlPullParser parser = Xml.newPullParser(); 2916 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2917 XmlUtils.nextElement(parser); 2918 if (parser.getEventType() != XmlPullParser.START_TAG) { 2919 Slog.e(LOG_TAG, "Unable to read restrictions file " 2920 + restrictionsFile.getBaseFile()); 2921 return restrictions; 2922 } 2923 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2924 readEntry(restrictions, values, parser); 2925 } 2926 } catch (IOException|XmlPullParserException e) { 2927 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2928 } finally { 2929 IoUtils.closeQuietly(fis); 2930 } 2931 return restrictions; 2932 } 2933 2934 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2935 XmlPullParser parser) throws XmlPullParserException, IOException { 2936 int type = parser.getEventType(); 2937 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2938 String key = parser.getAttributeValue(null, ATTR_KEY); 2939 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2940 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2941 if (multiple != null) { 2942 values.clear(); 2943 int count = Integer.parseInt(multiple); 2944 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2945 if (type == XmlPullParser.START_TAG 2946 && parser.getName().equals(TAG_VALUE)) { 2947 values.add(parser.nextText().trim()); 2948 count--; 2949 } 2950 } 2951 String [] valueStrings = new String[values.size()]; 2952 values.toArray(valueStrings); 2953 restrictions.putStringArray(key, valueStrings); 2954 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2955 restrictions.putBundle(key, readBundleEntry(parser, values)); 2956 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2957 final int outerDepth = parser.getDepth(); 2958 ArrayList<Bundle> bundleList = new ArrayList<>(); 2959 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2960 Bundle childBundle = readBundleEntry(parser, values); 2961 bundleList.add(childBundle); 2962 } 2963 restrictions.putParcelableArray(key, 2964 bundleList.toArray(new Bundle[bundleList.size()])); 2965 } else { 2966 String value = parser.nextText().trim(); 2967 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2968 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2969 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2970 restrictions.putInt(key, Integer.parseInt(value)); 2971 } else { 2972 restrictions.putString(key, value); 2973 } 2974 } 2975 } 2976 } 2977 2978 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2979 throws IOException, XmlPullParserException { 2980 Bundle childBundle = new Bundle(); 2981 final int outerDepth = parser.getDepth(); 2982 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2983 readEntry(childBundle, values, parser); 2984 } 2985 return childBundle; 2986 } 2987 2988 private void writeApplicationRestrictionsLP(String packageName, 2989 Bundle restrictions, int userId) { 2990 AtomicFile restrictionsFile = new AtomicFile( 2991 new File(Environment.getUserSystemDirectory(userId), 2992 packageToRestrictionsFileName(packageName))); 2993 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 2994 } 2995 2996 @VisibleForTesting 2997 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 2998 FileOutputStream fos = null; 2999 try { 3000 fos = restrictionsFile.startWrite(); 3001 final BufferedOutputStream bos = new BufferedOutputStream(fos); 3002 3003 final XmlSerializer serializer = new FastXmlSerializer(); 3004 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 3005 serializer.startDocument(null, true); 3006 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 3007 3008 serializer.startTag(null, TAG_RESTRICTIONS); 3009 writeBundle(restrictions, serializer); 3010 serializer.endTag(null, TAG_RESTRICTIONS); 3011 3012 serializer.endDocument(); 3013 restrictionsFile.finishWrite(fos); 3014 } catch (Exception e) { 3015 restrictionsFile.failWrite(fos); 3016 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 3017 } 3018 } 3019 3020 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 3021 throws IOException { 3022 for (String key : restrictions.keySet()) { 3023 Object value = restrictions.get(key); 3024 serializer.startTag(null, TAG_ENTRY); 3025 serializer.attribute(null, ATTR_KEY, key); 3026 3027 if (value instanceof Boolean) { 3028 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 3029 serializer.text(value.toString()); 3030 } else if (value instanceof Integer) { 3031 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 3032 serializer.text(value.toString()); 3033 } else if (value == null || value instanceof String) { 3034 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 3035 serializer.text(value != null ? (String) value : ""); 3036 } else if (value instanceof Bundle) { 3037 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3038 writeBundle((Bundle) value, serializer); 3039 } else if (value instanceof Parcelable[]) { 3040 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 3041 Parcelable[] array = (Parcelable[]) value; 3042 for (Parcelable parcelable : array) { 3043 if (!(parcelable instanceof Bundle)) { 3044 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 3045 } 3046 serializer.startTag(null, TAG_ENTRY); 3047 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3048 writeBundle((Bundle) parcelable, serializer); 3049 serializer.endTag(null, TAG_ENTRY); 3050 } 3051 } else { 3052 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 3053 String[] values = (String[]) value; 3054 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 3055 for (String choice : values) { 3056 serializer.startTag(null, TAG_VALUE); 3057 serializer.text(choice != null ? choice : ""); 3058 serializer.endTag(null, TAG_VALUE); 3059 } 3060 } 3061 serializer.endTag(null, TAG_ENTRY); 3062 } 3063 } 3064 3065 @Override 3066 public int getUserSerialNumber(int userHandle) { 3067 synchronized (mUsersLock) { 3068 if (!exists(userHandle)) return -1; 3069 return getUserInfoLU(userHandle).serialNumber; 3070 } 3071 } 3072 3073 @Override 3074 public boolean isUserNameSet(int userHandle) { 3075 synchronized (mUsersLock) { 3076 UserInfo userInfo = getUserInfoLU(userHandle); 3077 return userInfo != null && userInfo.name != null; 3078 } 3079 } 3080 3081 @Override 3082 public int getUserHandle(int userSerialNumber) { 3083 synchronized (mUsersLock) { 3084 for (int userId : mUserIds) { 3085 UserInfo info = getUserInfoLU(userId); 3086 if (info != null && info.serialNumber == userSerialNumber) return userId; 3087 } 3088 // Not found 3089 return -1; 3090 } 3091 } 3092 3093 @Override 3094 public long getUserCreationTime(int userHandle) { 3095 int callingUserId = UserHandle.getCallingUserId(); 3096 UserInfo userInfo = null; 3097 synchronized (mUsersLock) { 3098 if (callingUserId == userHandle) { 3099 userInfo = getUserInfoLU(userHandle); 3100 } else { 3101 UserInfo parent = getProfileParentLU(userHandle); 3102 if (parent != null && parent.id == callingUserId) { 3103 userInfo = getUserInfoLU(userHandle); 3104 } 3105 } 3106 } 3107 if (userInfo == null) { 3108 throw new SecurityException("userHandle can only be the calling user or a managed " 3109 + "profile associated with this user"); 3110 } 3111 return userInfo.creationTime; 3112 } 3113 3114 /** 3115 * Caches the list of user ids in an array, adjusting the array size when necessary. 3116 */ 3117 private void updateUserIds() { 3118 int num = 0; 3119 synchronized (mUsersLock) { 3120 final int userSize = mUsers.size(); 3121 for (int i = 0; i < userSize; i++) { 3122 if (!mUsers.valueAt(i).info.partial) { 3123 num++; 3124 } 3125 } 3126 final int[] newUsers = new int[num]; 3127 int n = 0; 3128 for (int i = 0; i < userSize; i++) { 3129 if (!mUsers.valueAt(i).info.partial) { 3130 newUsers[n++] = mUsers.keyAt(i); 3131 } 3132 } 3133 mUserIds = newUsers; 3134 } 3135 } 3136 3137 /** 3138 * Called right before a user is started. This gives us a chance to prepare 3139 * app storage and apply any user restrictions. 3140 */ 3141 public void onBeforeStartUser(int userId) { 3142 UserInfo userInfo = getUserInfo(userId); 3143 if (userInfo == null) { 3144 return; 3145 } 3146 final int userSerial = userInfo.serialNumber; 3147 // Migrate only if build fingerprints mismatch 3148 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3149 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 3150 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE, migrateAppsData); 3151 3152 if (userId != UserHandle.USER_SYSTEM) { 3153 synchronized (mRestrictionsLock) { 3154 applyUserRestrictionsLR(userId); 3155 } 3156 } 3157 } 3158 3159 /** 3160 * Called right before a user is unlocked. This gives us a chance to prepare 3161 * app storage. 3162 */ 3163 public void onBeforeUnlockUser(@UserIdInt int userId) { 3164 UserInfo userInfo = getUserInfo(userId); 3165 if (userInfo == null) { 3166 return; 3167 } 3168 final int userSerial = userInfo.serialNumber; 3169 // Migrate only if build fingerprints mismatch 3170 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3171 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 3172 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE, migrateAppsData); 3173 } 3174 3175 /** 3176 * Examine all users present on given mounted volume, and destroy data 3177 * belonging to users that are no longer valid, or whose user ID has been 3178 * recycled. 3179 */ 3180 void reconcileUsers(String volumeUuid) { 3181 mUserDataPreparer.reconcileUsers(volumeUuid, getUsers(true /* excludeDying */)); 3182 } 3183 3184 /** 3185 * Make a note of the last started time of a user and do some cleanup. 3186 * This is called with ActivityManagerService lock held. 3187 * @param userId the user that was just foregrounded 3188 */ 3189 public void onUserLoggedIn(@UserIdInt int userId) { 3190 UserData userData = getUserDataNoChecks(userId); 3191 if (userData == null || userData.info.partial) { 3192 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 3193 return; 3194 } 3195 3196 final long now = System.currentTimeMillis(); 3197 if (now > EPOCH_PLUS_30_YEARS) { 3198 userData.info.lastLoggedInTime = now; 3199 } 3200 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 3201 scheduleWriteUser(userData); 3202 } 3203 3204 /** 3205 * Returns the next available user id, filling in any holes in the ids. 3206 */ 3207 @VisibleForTesting 3208 int getNextAvailableId() { 3209 int nextId; 3210 synchronized (mUsersLock) { 3211 nextId = scanNextAvailableIdLocked(); 3212 if (nextId >= 0) { 3213 return nextId; 3214 } 3215 // All ids up to MAX_USER_ID were used. Remove all mRemovingUserIds, 3216 // except most recently removed 3217 if (mRemovingUserIds.size() > 0) { 3218 Slog.i(LOG_TAG, "All available IDs are used. Recycling LRU ids."); 3219 mRemovingUserIds.clear(); 3220 for (Integer recentlyRemovedId : mRecentlyRemovedIds) { 3221 mRemovingUserIds.put(recentlyRemovedId, true); 3222 } 3223 nextId = scanNextAvailableIdLocked(); 3224 } 3225 } 3226 if (nextId < 0) { 3227 throw new IllegalStateException("No user id available!"); 3228 } 3229 return nextId; 3230 } 3231 3232 private int scanNextAvailableIdLocked() { 3233 for (int i = MIN_USER_ID; i < MAX_USER_ID; i++) { 3234 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 3235 return i; 3236 } 3237 } 3238 return -1; 3239 } 3240 3241 private String packageToRestrictionsFileName(String packageName) { 3242 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 3243 } 3244 3245 @Override 3246 public void setSeedAccountData(int userId, String accountName, String accountType, 3247 PersistableBundle accountOptions, boolean persist) { 3248 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 3249 synchronized (mPackagesLock) { 3250 final UserData userData; 3251 synchronized (mUsersLock) { 3252 userData = getUserDataLU(userId); 3253 if (userData == null) { 3254 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 3255 return; 3256 } 3257 userData.seedAccountName = accountName; 3258 userData.seedAccountType = accountType; 3259 userData.seedAccountOptions = accountOptions; 3260 userData.persistSeedData = persist; 3261 } 3262 if (persist) { 3263 writeUserLP(userData); 3264 } 3265 } 3266 } 3267 3268 @Override 3269 public String getSeedAccountName() throws RemoteException { 3270 checkManageUsersPermission("Cannot get seed account information"); 3271 synchronized (mUsersLock) { 3272 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3273 return userData.seedAccountName; 3274 } 3275 } 3276 3277 @Override 3278 public String getSeedAccountType() throws RemoteException { 3279 checkManageUsersPermission("Cannot get seed account information"); 3280 synchronized (mUsersLock) { 3281 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3282 return userData.seedAccountType; 3283 } 3284 } 3285 3286 @Override 3287 public PersistableBundle getSeedAccountOptions() throws RemoteException { 3288 checkManageUsersPermission("Cannot get seed account information"); 3289 synchronized (mUsersLock) { 3290 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3291 return userData.seedAccountOptions; 3292 } 3293 } 3294 3295 @Override 3296 public void clearSeedAccountData() throws RemoteException { 3297 checkManageUsersPermission("Cannot clear seed account information"); 3298 synchronized (mPackagesLock) { 3299 UserData userData; 3300 synchronized (mUsersLock) { 3301 userData = getUserDataLU(UserHandle.getCallingUserId()); 3302 if (userData == null) return; 3303 userData.clearSeedAccountData(); 3304 } 3305 writeUserLP(userData); 3306 } 3307 } 3308 3309 @Override 3310 public boolean someUserHasSeedAccount(String accountName, String accountType) 3311 throws RemoteException { 3312 checkManageUsersPermission("Cannot check seed account information"); 3313 synchronized (mUsersLock) { 3314 final int userSize = mUsers.size(); 3315 for (int i = 0; i < userSize; i++) { 3316 final UserData data = mUsers.valueAt(i); 3317 if (data.info.isInitialized()) continue; 3318 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 3319 continue; 3320 } 3321 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 3322 continue; 3323 } 3324 return true; 3325 } 3326 } 3327 return false; 3328 } 3329 3330 @Override 3331 public void onShellCommand(FileDescriptor in, FileDescriptor out, 3332 FileDescriptor err, String[] args, ShellCallback callback, 3333 ResultReceiver resultReceiver) { 3334 (new Shell()).exec(this, in, out, err, args, callback, resultReceiver); 3335 } 3336 3337 int onShellCommand(Shell shell, String cmd) { 3338 if (cmd == null) { 3339 return shell.handleDefaultCommands(cmd); 3340 } 3341 3342 final PrintWriter pw = shell.getOutPrintWriter(); 3343 try { 3344 switch(cmd) { 3345 case "list": 3346 return runList(pw); 3347 } 3348 } catch (RemoteException e) { 3349 pw.println("Remote exception: " + e); 3350 } 3351 return -1; 3352 } 3353 3354 private int runList(PrintWriter pw) throws RemoteException { 3355 final IActivityManager am = ActivityManager.getService(); 3356 final List<UserInfo> users = getUsers(false); 3357 if (users == null) { 3358 pw.println("Error: couldn't get users"); 3359 return 1; 3360 } else { 3361 pw.println("Users:"); 3362 for (int i = 0; i < users.size(); i++) { 3363 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 3364 pw.println("\t" + users.get(i).toString() + running); 3365 } 3366 return 0; 3367 } 3368 } 3369 3370 @Override 3371 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3372 if (!DumpUtils.checkDumpPermission(mContext, LOG_TAG, pw)) return; 3373 3374 long now = System.currentTimeMillis(); 3375 StringBuilder sb = new StringBuilder(); 3376 synchronized (mPackagesLock) { 3377 synchronized (mUsersLock) { 3378 pw.println("Users:"); 3379 for (int i = 0; i < mUsers.size(); i++) { 3380 UserData userData = mUsers.valueAt(i); 3381 if (userData == null) { 3382 continue; 3383 } 3384 UserInfo userInfo = userData.info; 3385 final int userId = userInfo.id; 3386 pw.print(" "); pw.print(userInfo); 3387 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 3388 if (mRemovingUserIds.get(userId)) { 3389 pw.print(" <removing> "); 3390 } 3391 if (userInfo.partial) { 3392 pw.print(" <partial>"); 3393 } 3394 pw.println(); 3395 pw.print(" State: "); 3396 final int state; 3397 synchronized (mUserStates) { 3398 state = mUserStates.get(userId, -1); 3399 } 3400 pw.println(UserState.stateToString(state)); 3401 pw.print(" Created: "); 3402 if (userInfo.creationTime == 0) { 3403 pw.println("<unknown>"); 3404 } else { 3405 sb.setLength(0); 3406 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 3407 sb.append(" ago"); 3408 pw.println(sb); 3409 } 3410 pw.print(" Last logged in: "); 3411 if (userInfo.lastLoggedInTime == 0) { 3412 pw.println("<unknown>"); 3413 } else { 3414 sb.setLength(0); 3415 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 3416 sb.append(" ago"); 3417 pw.println(sb); 3418 } 3419 pw.print(" Last logged in fingerprint: "); 3420 pw.println(userInfo.lastLoggedInFingerprint); 3421 pw.print(" Has profile owner: "); 3422 pw.println(mIsUserManaged.get(userId)); 3423 pw.println(" Restrictions:"); 3424 synchronized (mRestrictionsLock) { 3425 UserRestrictionsUtils.dumpRestrictions( 3426 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 3427 pw.println(" Device policy global restrictions:"); 3428 UserRestrictionsUtils.dumpRestrictions( 3429 pw, " ", mDevicePolicyGlobalUserRestrictions.get(userInfo.id)); 3430 pw.println(" Device policy local restrictions:"); 3431 UserRestrictionsUtils.dumpRestrictions( 3432 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 3433 pw.println(" Effective restrictions:"); 3434 UserRestrictionsUtils.dumpRestrictions( 3435 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 3436 } 3437 3438 if (userData.account != null) { 3439 pw.print(" Account name: " + userData.account); 3440 pw.println(); 3441 } 3442 3443 if (userData.seedAccountName != null) { 3444 pw.print(" Seed account name: " + userData.seedAccountName); 3445 pw.println(); 3446 if (userData.seedAccountType != null) { 3447 pw.print(" account type: " + userData.seedAccountType); 3448 pw.println(); 3449 } 3450 if (userData.seedAccountOptions != null) { 3451 pw.print(" account options exist"); 3452 pw.println(); 3453 } 3454 } 3455 } 3456 } 3457 pw.println(); 3458 pw.println(" Device owner id:" + mDeviceOwnerUserId); 3459 pw.println(); 3460 pw.println(" Guest restrictions:"); 3461 synchronized (mGuestRestrictions) { 3462 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 3463 } 3464 synchronized (mUsersLock) { 3465 pw.println(); 3466 pw.println(" Device managed: " + mIsDeviceManaged); 3467 if (mRemovingUserIds.size() > 0) { 3468 pw.println(); 3469 pw.println(" Recently removed userIds: " + mRecentlyRemovedIds); 3470 } 3471 } 3472 synchronized (mUserStates) { 3473 pw.println(" Started users state: " + mUserStates); 3474 } 3475 // Dump some capabilities 3476 pw.println(); 3477 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 3478 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 3479 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 3480 com.android.internal.R.bool.config_guestUserEphemeral)); 3481 } 3482 } 3483 3484 final class MainHandler extends Handler { 3485 3486 @Override 3487 public void handleMessage(Message msg) { 3488 switch (msg.what) { 3489 case WRITE_USER_MSG: 3490 removeMessages(WRITE_USER_MSG, msg.obj); 3491 synchronized (mPackagesLock) { 3492 int userId = ((UserData) msg.obj).info.id; 3493 UserData userData = getUserDataNoChecks(userId); 3494 if (userData != null) { 3495 writeUserLP(userData); 3496 } 3497 } 3498 } 3499 } 3500 } 3501 3502 /** 3503 * @param userId 3504 * @return whether the user has been initialized yet 3505 */ 3506 boolean isInitialized(int userId) { 3507 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3508 } 3509 3510 private class LocalService extends UserManagerInternal { 3511 @Override 3512 public void setDevicePolicyUserRestrictions(int userId, @Nullable Bundle restrictions, 3513 boolean isDeviceOwner, int cameraRestrictionScope) { 3514 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, restrictions, 3515 isDeviceOwner, cameraRestrictionScope); 3516 } 3517 3518 @Override 3519 public Bundle getBaseUserRestrictions(int userId) { 3520 synchronized (mRestrictionsLock) { 3521 return mBaseUserRestrictions.get(userId); 3522 } 3523 } 3524 3525 @Override 3526 public void setBaseUserRestrictionsByDpmsForMigration( 3527 int userId, Bundle baseRestrictions) { 3528 synchronized (mRestrictionsLock) { 3529 if (updateRestrictionsIfNeededLR( 3530 userId, new Bundle(baseRestrictions), mBaseUserRestrictions)) { 3531 invalidateEffectiveUserRestrictionsLR(userId); 3532 } 3533 } 3534 3535 final UserData userData = getUserDataNoChecks(userId); 3536 synchronized (mPackagesLock) { 3537 if (userData != null) { 3538 writeUserLP(userData); 3539 } else { 3540 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3541 } 3542 } 3543 } 3544 3545 @Override 3546 public boolean getUserRestriction(int userId, String key) { 3547 return getUserRestrictions(userId).getBoolean(key); 3548 } 3549 3550 @Override 3551 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3552 synchronized (mUserRestrictionsListeners) { 3553 mUserRestrictionsListeners.add(listener); 3554 } 3555 } 3556 3557 @Override 3558 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3559 synchronized (mUserRestrictionsListeners) { 3560 mUserRestrictionsListeners.remove(listener); 3561 } 3562 } 3563 3564 @Override 3565 public void setDeviceManaged(boolean isManaged) { 3566 synchronized (mUsersLock) { 3567 mIsDeviceManaged = isManaged; 3568 } 3569 } 3570 3571 @Override 3572 public void setUserManaged(int userId, boolean isManaged) { 3573 synchronized (mUsersLock) { 3574 mIsUserManaged.put(userId, isManaged); 3575 } 3576 } 3577 3578 @Override 3579 public void setUserIcon(int userId, Bitmap bitmap) { 3580 long ident = Binder.clearCallingIdentity(); 3581 try { 3582 synchronized (mPackagesLock) { 3583 UserData userData = getUserDataNoChecks(userId); 3584 if (userData == null || userData.info.partial) { 3585 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3586 return; 3587 } 3588 writeBitmapLP(userData.info, bitmap); 3589 writeUserLP(userData); 3590 } 3591 sendUserInfoChangedBroadcast(userId); 3592 } finally { 3593 Binder.restoreCallingIdentity(ident); 3594 } 3595 } 3596 3597 @Override 3598 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3599 synchronized (mUsersLock) { 3600 mForceEphemeralUsers = forceEphemeralUsers; 3601 } 3602 } 3603 3604 @Override 3605 public void removeAllUsers() { 3606 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3607 // Remove the non-system users straight away. 3608 removeNonSystemUsers(); 3609 } else { 3610 // Switch to the system user first and then remove the other users. 3611 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3612 @Override 3613 public void onReceive(Context context, Intent intent) { 3614 int userId = 3615 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3616 if (userId != UserHandle.USER_SYSTEM) { 3617 return; 3618 } 3619 mContext.unregisterReceiver(this); 3620 removeNonSystemUsers(); 3621 } 3622 }; 3623 IntentFilter userSwitchedFilter = new IntentFilter(); 3624 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3625 mContext.registerReceiver( 3626 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3627 3628 // Switch to the system user. 3629 ActivityManager am = 3630 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3631 am.switchUser(UserHandle.USER_SYSTEM); 3632 } 3633 } 3634 3635 @Override 3636 public void onEphemeralUserStop(int userId) { 3637 synchronized (mUsersLock) { 3638 UserInfo userInfo = getUserInfoLU(userId); 3639 if (userInfo != null && userInfo.isEphemeral()) { 3640 // Do not allow switching back to the ephemeral user again as the user is going 3641 // to be deleted. 3642 userInfo.flags |= UserInfo.FLAG_DISABLED; 3643 if (userInfo.isGuest()) { 3644 // Indicate that the guest will be deleted after it stops. 3645 userInfo.guestToRemove = true; 3646 } 3647 } 3648 } 3649 } 3650 3651 @Override 3652 public UserInfo createUserEvenWhenDisallowed(String name, int flags) { 3653 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL, null); 3654 // Keep this in sync with UserManager.createUser 3655 if (user != null && !user.isAdmin()) { 3656 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3657 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3658 } 3659 return user; 3660 } 3661 3662 @Override 3663 public boolean removeUserEvenWhenDisallowed(int userId) { 3664 return removeUserUnchecked(userId); 3665 } 3666 3667 @Override 3668 public boolean isUserRunning(int userId) { 3669 synchronized (mUserStates) { 3670 return mUserStates.get(userId, -1) >= 0; 3671 } 3672 } 3673 3674 @Override 3675 public void setUserState(int userId, int userState) { 3676 synchronized (mUserStates) { 3677 mUserStates.put(userId, userState); 3678 } 3679 } 3680 3681 @Override 3682 public void removeUserState(int userId) { 3683 synchronized (mUserStates) { 3684 mUserStates.delete(userId); 3685 } 3686 } 3687 3688 @Override 3689 public int[] getUserIds() { 3690 return UserManagerService.this.getUserIds(); 3691 } 3692 3693 @Override 3694 public boolean isUserUnlockingOrUnlocked(int userId) { 3695 synchronized (mUserStates) { 3696 int state = mUserStates.get(userId, -1); 3697 return (state == UserState.STATE_RUNNING_UNLOCKING) 3698 || (state == UserState.STATE_RUNNING_UNLOCKED); 3699 } 3700 } 3701 3702 @Override 3703 public boolean isUserUnlocked(int userId) { 3704 synchronized (mUserStates) { 3705 int state = mUserStates.get(userId, -1); 3706 return state == UserState.STATE_RUNNING_UNLOCKED; 3707 } 3708 } 3709 } 3710 3711 /* Remove all the users except of the system one. */ 3712 private void removeNonSystemUsers() { 3713 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3714 synchronized (mUsersLock) { 3715 final int userSize = mUsers.size(); 3716 for (int i = 0; i < userSize; i++) { 3717 UserInfo ui = mUsers.valueAt(i).info; 3718 if (ui.id != UserHandle.USER_SYSTEM) { 3719 usersToRemove.add(ui); 3720 } 3721 } 3722 } 3723 for (UserInfo ui: usersToRemove) { 3724 removeUser(ui.id); 3725 } 3726 } 3727 3728 private class Shell extends ShellCommand { 3729 @Override 3730 public int onCommand(String cmd) { 3731 return onShellCommand(this, cmd); 3732 } 3733 3734 @Override 3735 public void onHelp() { 3736 final PrintWriter pw = getOutPrintWriter(); 3737 pw.println("User manager (user) commands:"); 3738 pw.println(" help"); 3739 pw.println(" Print this help text."); 3740 pw.println(""); 3741 pw.println(" list"); 3742 pw.println(" Prints all users on the system."); 3743 } 3744 } 3745 3746 private static void debug(String message) { 3747 Log.d(LOG_TAG, message + 3748 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3749 } 3750 3751 @VisibleForTesting 3752 static int getMaxManagedProfiles() { 3753 // Allow overriding max managed profiles on debuggable builds for testing 3754 // of multiple profiles. 3755 if (!Build.IS_DEBUGGABLE) { 3756 return MAX_MANAGED_PROFILES; 3757 } else { 3758 return SystemProperties.getInt("persist.sys.max_profiles", 3759 MAX_MANAGED_PROFILES); 3760 } 3761 } 3762 3763 @VisibleForTesting 3764 int getFreeProfileBadgeLU(int parentUserId) { 3765 int maxManagedProfiles = getMaxManagedProfiles(); 3766 boolean[] usedBadges = new boolean[maxManagedProfiles]; 3767 final int userSize = mUsers.size(); 3768 for (int i = 0; i < userSize; i++) { 3769 UserInfo ui = mUsers.valueAt(i).info; 3770 // Check which badge indexes are already used by this profile group. 3771 if (ui.isManagedProfile() 3772 && ui.profileGroupId == parentUserId 3773 && !mRemovingUserIds.get(ui.id) 3774 && ui.profileBadge < maxManagedProfiles) { 3775 usedBadges[ui.profileBadge] = true; 3776 } 3777 } 3778 for (int i = 0; i < maxManagedProfiles; i++) { 3779 if (!usedBadges[i]) { 3780 return i; 3781 } 3782 } 3783 return 0; 3784 } 3785 3786 /** 3787 * Checks if the given user has a managed profile associated with it. 3788 * @param userId The parent user 3789 * @return 3790 */ 3791 boolean hasManagedProfile(int userId) { 3792 synchronized (mUsersLock) { 3793 UserInfo userInfo = getUserInfoLU(userId); 3794 final int userSize = mUsers.size(); 3795 for (int i = 0; i < userSize; i++) { 3796 UserInfo profile = mUsers.valueAt(i).info; 3797 if (userId != profile.id && isProfileOf(userInfo, profile)) { 3798 return true; 3799 } 3800 } 3801 return false; 3802 } 3803 } 3804} 3805