UserManagerService.java revision 7a1e68279460cba8483ce289147284a27d38b648
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.ComponentName; 37import android.content.Context; 38import android.content.Intent; 39import android.content.IntentFilter; 40import android.content.IntentSender; 41import android.content.pm.IPackageManager; 42import android.content.pm.PackageManager; 43import android.content.pm.PackageManager.NameNotFoundException; 44import android.content.pm.UserInfo; 45import android.content.res.Resources; 46import android.graphics.Bitmap; 47import android.os.Binder; 48import android.os.Build; 49import android.os.Bundle; 50import android.os.Debug; 51import android.os.Environment; 52import android.os.FileUtils; 53import android.os.Handler; 54import android.os.IBinder; 55import android.os.IUserManager; 56import android.os.Message; 57import android.os.ParcelFileDescriptor; 58import android.os.Parcelable; 59import android.os.PersistableBundle; 60import android.os.Process; 61import android.os.RemoteException; 62import android.os.ResultReceiver; 63import android.os.SELinux; 64import android.os.ServiceManager; 65import android.os.ShellCommand; 66import android.os.UserHandle; 67import android.os.UserManager; 68import android.os.UserManagerInternal; 69import android.os.UserManagerInternal.UserRestrictionsListener; 70import android.os.storage.StorageManager; 71import android.security.GateKeeper; 72import android.service.gatekeeper.IGateKeeperService; 73import android.system.ErrnoException; 74import android.system.Os; 75import android.system.OsConstants; 76import android.text.TextUtils; 77import android.util.AtomicFile; 78import android.util.IntArray; 79import android.util.Log; 80import android.util.Slog; 81import android.util.SparseArray; 82import android.util.SparseBooleanArray; 83import android.util.SparseIntArray; 84import android.util.TimeUtils; 85import android.util.Xml; 86 87import com.android.internal.annotations.GuardedBy; 88import com.android.internal.annotations.VisibleForTesting; 89import com.android.internal.app.IAppOpsService; 90import com.android.internal.logging.MetricsLogger; 91import com.android.internal.util.FastXmlSerializer; 92import com.android.internal.util.Preconditions; 93import com.android.internal.util.XmlUtils; 94import com.android.internal.widget.LockPatternUtils; 95import com.android.server.LocalServices; 96import com.android.server.SystemService; 97import com.android.server.am.UserState; 98 99import libcore.io.IoUtils; 100import libcore.util.Objects; 101 102import org.xmlpull.v1.XmlPullParser; 103import org.xmlpull.v1.XmlPullParserException; 104import org.xmlpull.v1.XmlSerializer; 105 106import java.io.BufferedOutputStream; 107import java.io.File; 108import java.io.FileDescriptor; 109import java.io.FileInputStream; 110import java.io.FileNotFoundException; 111import java.io.FileOutputStream; 112import java.io.IOException; 113import java.io.PrintWriter; 114import java.nio.charset.StandardCharsets; 115import java.util.ArrayList; 116import java.util.List; 117 118/** 119 * Service for {@link UserManager}. 120 * 121 * Method naming convention: 122 * <ul> 123 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 124 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 125 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 126 * </ul> 127 */ 128public class UserManagerService extends IUserManager.Stub { 129 130 private static final String LOG_TAG = "UserManagerService"; 131 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 132 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 133 134 private static final String TAG_NAME = "name"; 135 private static final String TAG_ACCOUNT = "account"; 136 private static final String ATTR_FLAGS = "flags"; 137 private static final String ATTR_ICON_PATH = "icon"; 138 private static final String ATTR_ID = "id"; 139 private static final String ATTR_CREATION_TIME = "created"; 140 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 141 private static final String ATTR_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint"; 142 private static final String ATTR_SERIAL_NO = "serialNumber"; 143 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 144 private static final String ATTR_PARTIAL = "partial"; 145 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 146 private static final String ATTR_USER_VERSION = "version"; 147 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 148 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 149 private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; 150 private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; 151 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 152 private static final String TAG_USERS = "users"; 153 private static final String TAG_USER = "user"; 154 private static final String TAG_RESTRICTIONS = "restrictions"; 155 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 156 private static final String TAG_GLOBAL_RESTRICTION_OWNER_ID = "globalRestrictionOwnerUserId"; 157 private static final String TAG_ENTRY = "entry"; 158 private static final String TAG_VALUE = "value"; 159 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 160 private static final String ATTR_KEY = "key"; 161 private static final String ATTR_VALUE_TYPE = "type"; 162 private static final String ATTR_MULTIPLE = "m"; 163 164 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 165 private static final String ATTR_TYPE_STRING = "s"; 166 private static final String ATTR_TYPE_BOOLEAN = "b"; 167 private static final String ATTR_TYPE_INTEGER = "i"; 168 private static final String ATTR_TYPE_BUNDLE = "B"; 169 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 170 171 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 172 private static final String USER_LIST_FILENAME = "userlist.xml"; 173 private static final String USER_PHOTO_FILENAME = "photo.png"; 174 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 175 176 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 177 private static final String XML_SUFFIX = ".xml"; 178 179 private static final int ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION = 180 UserInfo.FLAG_MANAGED_PROFILE 181 | UserInfo.FLAG_EPHEMERAL 182 | UserInfo.FLAG_RESTRICTED 183 | UserInfo.FLAG_GUEST 184 | UserInfo.FLAG_DEMO; 185 186 private static final int MIN_USER_ID = 10; 187 // We need to keep process uid within Integer.MAX_VALUE. 188 private static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 189 190 private static final int USER_VERSION = 6; 191 192 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 193 194 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 195 // without first making sure that the rest of the framework is prepared for it. 196 private static final int MAX_MANAGED_PROFILES = 1; 197 198 static final int WRITE_USER_MSG = 1; 199 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 200 201 private static final String XATTR_SERIAL = "user.serial"; 202 203 // Tron counters 204 private static final String TRON_GUEST_CREATED = "users_guest_created"; 205 private static final String TRON_USER_CREATED = "users_user_created"; 206 207 private final Context mContext; 208 private final PackageManagerService mPm; 209 private final Object mPackagesLock; 210 // Short-term lock for internal state, when interaction/sync with PM is not required 211 private final Object mUsersLock = new Object(); 212 private final Object mRestrictionsLock = new Object(); 213 214 private final Handler mHandler; 215 216 private final File mUsersDir; 217 private final File mUserListFile; 218 219 private static final IBinder mUserRestriconToken = new Binder(); 220 221 /** 222 * User-related information that is used for persisting to flash. Only UserInfo is 223 * directly exposed to other system apps. 224 */ 225 private static class UserData { 226 // Basic user information and properties 227 UserInfo info; 228 // Account name used when there is a strong association between a user and an account 229 String account; 230 // Account information for seeding into a newly created user. This could also be 231 // used for login validation for an existing user, for updating their credentials. 232 // In the latter case, data may not need to be persisted as it is only valid for the 233 // current login session. 234 String seedAccountName; 235 String seedAccountType; 236 PersistableBundle seedAccountOptions; 237 // Whether to perist the seed account information to be available after a boot 238 boolean persistSeedData; 239 240 void clearSeedAccountData() { 241 seedAccountName = null; 242 seedAccountType = null; 243 seedAccountOptions = null; 244 persistSeedData = false; 245 } 246 } 247 248 @GuardedBy("mUsersLock") 249 private final SparseArray<UserData> mUsers = new SparseArray<>(); 250 251 /** 252 * User restrictions set via UserManager. This doesn't include restrictions set by 253 * device owner / profile owners. 254 * 255 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 256 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 257 * maybe shared between {@link #mBaseUserRestrictions} and 258 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 259 * (Otherwise we won't be able to detect what restrictions have changed in 260 * {@link #updateUserRestrictionsInternalLR}. 261 */ 262 @GuardedBy("mRestrictionsLock") 263 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 264 265 /** 266 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 267 * with device / profile owner restrictions. We'll initialize it lazily; use 268 * {@link #getEffectiveUserRestrictions} to access it. 269 * 270 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 271 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 272 * maybe shared between {@link #mBaseUserRestrictions} and 273 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 274 * (Otherwise we won't be able to detect what restrictions have changed in 275 * {@link #updateUserRestrictionsInternalLR}. 276 */ 277 @GuardedBy("mRestrictionsLock") 278 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 279 280 /** 281 * User restrictions that have already been applied in 282 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 283 * that have changed since the last 284 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 285 */ 286 @GuardedBy("mRestrictionsLock") 287 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 288 289 /** 290 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 291 * that should be applied to all users, including guests. 292 */ 293 @GuardedBy("mRestrictionsLock") 294 private Bundle mDevicePolicyGlobalUserRestrictions; 295 296 /** 297 * Id of the user that set global restrictions. 298 */ 299 @GuardedBy("mRestrictionsLock") 300 private int mGlobalRestrictionOwnerUserId = UserHandle.USER_NULL; 301 302 /** 303 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 304 * for each user. 305 */ 306 @GuardedBy("mRestrictionsLock") 307 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 308 309 @GuardedBy("mGuestRestrictions") 310 private final Bundle mGuestRestrictions = new Bundle(); 311 312 /** 313 * Set of user IDs being actively removed. Removed IDs linger in this set 314 * for several seconds to work around a VFS caching issue. 315 */ 316 @GuardedBy("mUsersLock") 317 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 318 319 @GuardedBy("mUsersLock") 320 private int[] mUserIds; 321 @GuardedBy("mPackagesLock") 322 private int mNextSerialNumber; 323 private int mUserVersion = 0; 324 325 private IAppOpsService mAppOpsService; 326 327 private final LocalService mLocalService; 328 329 @GuardedBy("mUsersLock") 330 private boolean mIsDeviceManaged; 331 332 @GuardedBy("mUsersLock") 333 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 334 335 @GuardedBy("mUserRestrictionsListeners") 336 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 337 new ArrayList<>(); 338 339 private final LockPatternUtils mLockPatternUtils; 340 341 private final String ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK = 342 "com.android.server.pm.DISABLE_QUIET_MODE_AFTER_UNLOCK"; 343 344 private final BroadcastReceiver mDisableQuietModeCallback = new BroadcastReceiver() { 345 @Override 346 public void onReceive(Context context, Intent intent) { 347 if (ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK.equals(intent.getAction())) { 348 final IntentSender target = intent.getParcelableExtra(Intent.EXTRA_INTENT); 349 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_ID, 0); 350 setQuietModeEnabled(userHandle, false); 351 if (target != null) { 352 try { 353 mContext.startIntentSender(target, null, 0, 0, 0); 354 } catch (IntentSender.SendIntentException e) { 355 /* ignore */ 356 } 357 } 358 } 359 } 360 }; 361 362 /** 363 * Whether all users should be created ephemeral. 364 */ 365 @GuardedBy("mUsersLock") 366 private boolean mForceEphemeralUsers; 367 368 @GuardedBy("mUserStates") 369 private final SparseIntArray mUserStates = new SparseIntArray(); 370 371 private static UserManagerService sInstance; 372 373 public static UserManagerService getInstance() { 374 synchronized (UserManagerService.class) { 375 return sInstance; 376 } 377 } 378 379 public static class LifeCycle extends SystemService { 380 381 private UserManagerService mUms; 382 383 /** 384 * @param context 385 */ 386 public LifeCycle(Context context) { 387 super(context); 388 } 389 390 @Override 391 public void onStart() { 392 mUms = UserManagerService.getInstance(); 393 publishBinderService(Context.USER_SERVICE, mUms); 394 } 395 396 @Override 397 public void onBootPhase(int phase) { 398 if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) { 399 mUms.cleanupPartialUsers(); 400 } 401 } 402 } 403 404 @VisibleForTesting 405 UserManagerService(File dataDir) { 406 this(null, null, new Object(), dataDir); 407 } 408 409 /** 410 * Called by package manager to create the service. This is closely 411 * associated with the package manager, and the given lock is the 412 * package manager's own lock. 413 */ 414 UserManagerService(Context context, PackageManagerService pm, Object packagesLock) { 415 this(context, pm, packagesLock, Environment.getDataDirectory()); 416 } 417 418 private UserManagerService(Context context, PackageManagerService pm, 419 Object packagesLock, File dataDir) { 420 mContext = context; 421 mPm = pm; 422 mPackagesLock = packagesLock; 423 mHandler = new MainHandler(); 424 synchronized (mPackagesLock) { 425 mUsersDir = new File(dataDir, USER_INFO_DIR); 426 mUsersDir.mkdirs(); 427 // Make zeroth user directory, for services to migrate their files to that location 428 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 429 userZeroDir.mkdirs(); 430 FileUtils.setPermissions(mUsersDir.toString(), 431 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 432 -1, -1); 433 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 434 initDefaultGuestRestrictions(); 435 readUserListLP(); 436 sInstance = this; 437 } 438 mLocalService = new LocalService(); 439 LocalServices.addService(UserManagerInternal.class, mLocalService); 440 mLockPatternUtils = new LockPatternUtils(mContext); 441 mUserStates.put(UserHandle.USER_SYSTEM, UserState.STATE_BOOTING); 442 } 443 444 void systemReady() { 445 mAppOpsService = IAppOpsService.Stub.asInterface( 446 ServiceManager.getService(Context.APP_OPS_SERVICE)); 447 448 synchronized (mRestrictionsLock) { 449 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 450 } 451 452 UserInfo currentGuestUser = findCurrentGuestUser(); 453 if (currentGuestUser != null && !hasUserRestriction( 454 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 455 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 456 // to it, in case this guest was created in a previous version where this 457 // user restriction was not a default guest restriction. 458 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 459 } 460 461 mContext.registerReceiver(mDisableQuietModeCallback, 462 new IntentFilter(ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK), 463 null, mHandler); 464 } 465 466 void cleanupPartialUsers() { 467 // Prune out any partially created, partially removed and ephemeral users. 468 ArrayList<UserInfo> partials = new ArrayList<>(); 469 synchronized (mUsersLock) { 470 final int userSize = mUsers.size(); 471 for (int i = 0; i < userSize; i++) { 472 UserInfo ui = mUsers.valueAt(i).info; 473 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 474 partials.add(ui); 475 mRemovingUserIds.append(ui.id, true); 476 ui.partial = true; 477 } 478 } 479 } 480 final int partialsSize = partials.size(); 481 for (int i = 0; i < partialsSize; i++) { 482 UserInfo ui = partials.get(i); 483 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 484 + " (name=" + ui.name + ")"); 485 removeUserState(ui.id); 486 } 487 } 488 489 @Override 490 public String getUserAccount(int userId) { 491 checkManageUserAndAcrossUsersFullPermission("get user account"); 492 synchronized (mUsersLock) { 493 return mUsers.get(userId).account; 494 } 495 } 496 497 @Override 498 public void setUserAccount(int userId, String accountName) { 499 checkManageUserAndAcrossUsersFullPermission("set user account"); 500 UserData userToUpdate = null; 501 synchronized (mPackagesLock) { 502 synchronized (mUsersLock) { 503 final UserData userData = mUsers.get(userId); 504 if (userData == null) { 505 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 506 return; 507 } 508 String currentAccount = userData.account; 509 if (!Objects.equal(currentAccount, accountName)) { 510 userData.account = accountName; 511 userToUpdate = userData; 512 } 513 } 514 515 if (userToUpdate != null) { 516 writeUserLP(userToUpdate); 517 } 518 } 519 } 520 521 @Override 522 public UserInfo getPrimaryUser() { 523 checkManageUsersPermission("query users"); 524 synchronized (mUsersLock) { 525 final int userSize = mUsers.size(); 526 for (int i = 0; i < userSize; i++) { 527 UserInfo ui = mUsers.valueAt(i).info; 528 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 529 return ui; 530 } 531 } 532 } 533 return null; 534 } 535 536 @Override 537 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 538 checkManageOrCreateUsersPermission("query users"); 539 synchronized (mUsersLock) { 540 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 541 final int userSize = mUsers.size(); 542 for (int i = 0; i < userSize; i++) { 543 UserInfo ui = mUsers.valueAt(i).info; 544 if (ui.partial) { 545 continue; 546 } 547 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 548 users.add(userWithName(ui)); 549 } 550 } 551 return users; 552 } 553 } 554 555 @Override 556 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 557 boolean returnFullInfo = true; 558 if (userId != UserHandle.getCallingUserId()) { 559 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 560 } else { 561 returnFullInfo = hasManageUsersPermission(); 562 } 563 final long ident = Binder.clearCallingIdentity(); 564 try { 565 synchronized (mUsersLock) { 566 return getProfilesLU(userId, enabledOnly, returnFullInfo); 567 } 568 } finally { 569 Binder.restoreCallingIdentity(ident); 570 } 571 } 572 573 @Override 574 public int[] getProfileIds(int userId, boolean enabledOnly) { 575 if (userId != UserHandle.getCallingUserId()) { 576 checkManageUsersPermission("getting profiles related to user " + userId); 577 } 578 final long ident = Binder.clearCallingIdentity(); 579 try { 580 synchronized (mUsersLock) { 581 return getProfileIdsLU(userId, enabledOnly).toArray(); 582 } 583 } finally { 584 Binder.restoreCallingIdentity(ident); 585 } 586 } 587 588 /** Assume permissions already checked and caller's identity cleared */ 589 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 590 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 591 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 592 for (int i = 0; i < profileIds.size(); i++) { 593 int profileId = profileIds.get(i); 594 UserInfo userInfo = mUsers.get(profileId).info; 595 // If full info is not required - clear PII data to prevent 3P apps from reading it 596 if (!fullInfo) { 597 userInfo = new UserInfo(userInfo); 598 userInfo.name = null; 599 userInfo.iconPath = null; 600 } else { 601 userInfo = userWithName(userInfo); 602 } 603 users.add(userInfo); 604 } 605 return users; 606 } 607 608 /** 609 * Assume permissions already checked and caller's identity cleared 610 */ 611 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 612 UserInfo user = getUserInfoLU(userId); 613 IntArray result = new IntArray(mUsers.size()); 614 if (user == null) { 615 // Probably a dying user 616 return result; 617 } 618 final int userSize = mUsers.size(); 619 for (int i = 0; i < userSize; i++) { 620 UserInfo profile = mUsers.valueAt(i).info; 621 if (!isProfileOf(user, profile)) { 622 continue; 623 } 624 if (enabledOnly && !profile.isEnabled()) { 625 continue; 626 } 627 if (mRemovingUserIds.get(profile.id)) { 628 continue; 629 } 630 if (profile.partial) { 631 continue; 632 } 633 result.add(profile.id); 634 } 635 return result; 636 } 637 638 @Override 639 public int getCredentialOwnerProfile(int userHandle) { 640 checkManageUsersPermission("get the credential owner"); 641 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 642 synchronized (mUsersLock) { 643 UserInfo profileParent = getProfileParentLU(userHandle); 644 if (profileParent != null) { 645 return profileParent.id; 646 } 647 } 648 } 649 650 return userHandle; 651 } 652 653 @Override 654 public boolean isSameProfileGroup(int userId, int otherUserId) { 655 if (userId == otherUserId) return true; 656 checkManageUsersPermission("check if in the same profile group"); 657 return isSameProfileGroupNoChecks(userId, otherUserId); 658 } 659 660 private boolean isSameProfileGroupNoChecks(int userId, int otherUserId) { 661 synchronized (mUsersLock) { 662 UserInfo userInfo = getUserInfoLU(userId); 663 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 664 return false; 665 } 666 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 667 if (otherUserInfo == null 668 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 669 return false; 670 } 671 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 672 } 673 } 674 675 @Override 676 public UserInfo getProfileParent(int userHandle) { 677 checkManageUsersPermission("get the profile parent"); 678 synchronized (mUsersLock) { 679 return getProfileParentLU(userHandle); 680 } 681 } 682 683 private UserInfo getProfileParentLU(int userHandle) { 684 UserInfo profile = getUserInfoLU(userHandle); 685 if (profile == null) { 686 return null; 687 } 688 int parentUserId = profile.profileGroupId; 689 if (parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 690 return null; 691 } else { 692 return getUserInfoLU(parentUserId); 693 } 694 } 695 696 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 697 return user.id == profile.id || 698 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 699 && user.profileGroupId == profile.profileGroupId); 700 } 701 702 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 703 UserHandle parentHandle, boolean inQuietMode) { 704 Intent intent = new Intent(); 705 if (inQuietMode) { 706 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 707 } else { 708 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 709 } 710 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 711 intent.putExtra(Intent.EXTRA_USER, profileHandle); 712 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 713 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 714 mContext.sendBroadcastAsUser(intent, parentHandle); 715 } 716 717 @Override 718 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { 719 checkManageUsersPermission("silence profile"); 720 boolean changed = false; 721 UserInfo profile, parent; 722 synchronized (mPackagesLock) { 723 synchronized (mUsersLock) { 724 profile = getUserInfoLU(userHandle); 725 parent = getProfileParentLU(userHandle); 726 727 } 728 if (profile == null || !profile.isManagedProfile()) { 729 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 730 } 731 if (profile.isQuietModeEnabled() != enableQuietMode) { 732 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 733 writeUserLP(getUserDataLU(profile.id)); 734 changed = true; 735 } 736 } 737 if (changed) { 738 long identity = Binder.clearCallingIdentity(); 739 try { 740 if (enableQuietMode) { 741 ActivityManagerNative.getDefault().stopUser(userHandle, /* force */true, null); 742 LocalServices.getService(ActivityManagerInternal.class) 743 .killForegroundAppsForUser(userHandle); 744 } else { 745 ActivityManagerNative.getDefault().startUserInBackground(userHandle); 746 } 747 } catch (RemoteException e) { 748 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 749 } finally { 750 Binder.restoreCallingIdentity(identity); 751 } 752 753 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 754 enableQuietMode); 755 } 756 } 757 758 @Override 759 public boolean isQuietModeEnabled(int userHandle) { 760 synchronized (mPackagesLock) { 761 UserInfo info; 762 synchronized (mUsersLock) { 763 info = getUserInfoLU(userHandle); 764 } 765 if (info == null || !info.isManagedProfile()) { 766 return false; 767 } 768 return info.isQuietModeEnabled(); 769 } 770 } 771 772 @Override 773 public boolean trySetQuietModeDisabled(int userHandle, IntentSender target) { 774 checkManageUsersPermission("silence profile"); 775 if (StorageManager.isUserKeyUnlocked(userHandle) 776 || !mLockPatternUtils.isSecure(userHandle)) { 777 // if the user is already unlocked, no need to show a profile challenge 778 setQuietModeEnabled(userHandle, false); 779 return true; 780 } 781 782 long identity = Binder.clearCallingIdentity(); 783 try { 784 // otherwise, we show a profile challenge to trigger decryption of the user 785 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 786 Context.KEYGUARD_SERVICE); 787 // We should use userHandle not credentialOwnerUserId here, as even if it is unified 788 // lock, confirm screenlock page will know and show personal challenge, and unlock 789 // work profile when personal challenge is correct 790 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 791 userHandle); 792 if (unlockIntent == null) { 793 return false; 794 } 795 final Intent callBackIntent = new Intent( 796 ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK); 797 if (target != null) { 798 callBackIntent.putExtra(Intent.EXTRA_INTENT, target); 799 } 800 callBackIntent.putExtra(Intent.EXTRA_USER_ID, userHandle); 801 callBackIntent.setPackage(mContext.getPackageName()); 802 callBackIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 803 final PendingIntent pendingIntent = PendingIntent.getBroadcast( 804 mContext, 805 0, 806 callBackIntent, 807 PendingIntent.FLAG_CANCEL_CURRENT | 808 PendingIntent.FLAG_ONE_SHOT | 809 PendingIntent.FLAG_IMMUTABLE); 810 // After unlocking the challenge, it will disable quiet mode and run the original 811 // intentSender 812 unlockIntent.putExtra(Intent.EXTRA_INTENT, pendingIntent.getIntentSender()); 813 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 814 mContext.startActivity(unlockIntent); 815 } finally { 816 Binder.restoreCallingIdentity(identity); 817 } 818 return false; 819 } 820 821 @Override 822 public void setUserEnabled(int userId) { 823 checkManageUsersPermission("enable user"); 824 synchronized (mPackagesLock) { 825 UserInfo info; 826 synchronized (mUsersLock) { 827 info = getUserInfoLU(userId); 828 } 829 if (info != null && !info.isEnabled()) { 830 info.flags ^= UserInfo.FLAG_DISABLED; 831 writeUserLP(getUserDataLU(info.id)); 832 } 833 } 834 } 835 836 @Override 837 public UserInfo getUserInfo(int userId) { 838 checkManageOrCreateUsersPermission("query user"); 839 synchronized (mUsersLock) { 840 return userWithName(getUserInfoLU(userId)); 841 } 842 } 843 844 /** 845 * Returns a UserInfo object with the name filled in, for Owner, or the original 846 * if the name is already set. 847 */ 848 private UserInfo userWithName(UserInfo orig) { 849 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 850 UserInfo withName = new UserInfo(orig); 851 withName.name = getOwnerName(); 852 return withName; 853 } else { 854 return orig; 855 } 856 } 857 858 @Override 859 public boolean isManagedProfile(int userId) { 860 int callingUserId = UserHandle.getCallingUserId(); 861 if (callingUserId != userId && !hasManageUsersPermission()) { 862 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 863 throw new SecurityException( 864 "You need MANAGE_USERS permission to: check if specified user a " + 865 "managed profile outside your profile group"); 866 } 867 } 868 synchronized (mUsersLock) { 869 UserInfo userInfo = getUserInfoLU(userId); 870 return userInfo != null && userInfo.isManagedProfile(); 871 } 872 } 873 874 @Override 875 public boolean isUserUnlockingOrUnlocked(int userId) { 876 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlockingOrUnlocked"); 877 return mLocalService.isUserUnlockingOrUnlocked(userId); 878 } 879 880 @Override 881 public boolean isUserUnlocked(int userId) { 882 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlocked"); 883 return mLocalService.isUserUnlockingOrUnlocked(userId); 884 } 885 886 @Override 887 public boolean isUserRunning(int userId) { 888 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserRunning"); 889 return mLocalService.isUserRunning(userId); 890 } 891 892 private void checkManageOrInteractPermIfCallerInOtherProfileGroup(int userId, String name) { 893 int callingUserId = UserHandle.getCallingUserId(); 894 if (callingUserId == userId || isSameProfileGroupNoChecks(callingUserId, userId) || 895 hasManageUsersPermission()) { 896 return; 897 } 898 if (ActivityManager.checkComponentPermission(Manifest.permission.INTERACT_ACROSS_USERS, 899 Binder.getCallingUid(), -1, true) != PackageManager.PERMISSION_GRANTED) { 900 throw new SecurityException("You need INTERACT_ACROSS_USERS or MANAGE_USERS permission " 901 + "to: check " + name); 902 } 903 } 904 905 @Override 906 public boolean isDemoUser(int userId) { 907 int callingUserId = UserHandle.getCallingUserId(); 908 if (callingUserId != userId && !hasManageUsersPermission()) { 909 throw new SecurityException("You need MANAGE_USERS permission to query if u=" + userId 910 + " is a demo user"); 911 } 912 synchronized (mUsersLock) { 913 UserInfo userInfo = getUserInfoLU(userId); 914 return userInfo != null && userInfo.isDemo(); 915 } 916 } 917 918 @Override 919 public boolean isRestricted() { 920 synchronized (mUsersLock) { 921 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 922 } 923 } 924 925 @Override 926 public boolean canHaveRestrictedProfile(int userId) { 927 checkManageUsersPermission("canHaveRestrictedProfile"); 928 synchronized (mUsersLock) { 929 final UserInfo userInfo = getUserInfoLU(userId); 930 if (userInfo == null || !userInfo.canHaveProfile()) { 931 return false; 932 } 933 if (!userInfo.isAdmin()) { 934 return false; 935 } 936 // restricted profile can be created if there is no DO set and the admin user has no PO; 937 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 938 } 939 } 940 941 /* 942 * Should be locked on mUsers before calling this. 943 */ 944 private UserInfo getUserInfoLU(int userId) { 945 final UserData userData = mUsers.get(userId); 946 // If it is partial and not in the process of being removed, return as unknown user. 947 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 948 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 949 return null; 950 } 951 return userData != null ? userData.info : null; 952 } 953 954 private UserData getUserDataLU(int userId) { 955 final UserData userData = mUsers.get(userId); 956 // If it is partial and not in the process of being removed, return as unknown user. 957 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 958 return null; 959 } 960 return userData; 961 } 962 963 /** 964 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 965 * <p>No permissions checking or any addition checks are made</p> 966 */ 967 private UserInfo getUserInfoNoChecks(int userId) { 968 synchronized (mUsersLock) { 969 final UserData userData = mUsers.get(userId); 970 return userData != null ? userData.info : null; 971 } 972 } 973 974 /** 975 * Obtains {@link #mUsersLock} and return UserData from mUsers. 976 * <p>No permissions checking or any addition checks are made</p> 977 */ 978 private UserData getUserDataNoChecks(int userId) { 979 synchronized (mUsersLock) { 980 return mUsers.get(userId); 981 } 982 } 983 984 /** Called by PackageManagerService */ 985 public boolean exists(int userId) { 986 return getUserInfoNoChecks(userId) != null; 987 } 988 989 @Override 990 public void setUserName(int userId, String name) { 991 checkManageUsersPermission("rename users"); 992 boolean changed = false; 993 synchronized (mPackagesLock) { 994 UserData userData = getUserDataNoChecks(userId); 995 if (userData == null || userData.info.partial) { 996 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 997 return; 998 } 999 if (name != null && !name.equals(userData.info.name)) { 1000 userData.info.name = name; 1001 writeUserLP(userData); 1002 changed = true; 1003 } 1004 } 1005 if (changed) { 1006 sendUserInfoChangedBroadcast(userId); 1007 } 1008 } 1009 1010 @Override 1011 public void setUserIcon(int userId, Bitmap bitmap) { 1012 checkManageUsersPermission("update users"); 1013 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 1014 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 1015 return; 1016 } 1017 mLocalService.setUserIcon(userId, bitmap); 1018 } 1019 1020 1021 1022 private void sendUserInfoChangedBroadcast(int userId) { 1023 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 1024 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 1025 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1026 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 1027 } 1028 1029 @Override 1030 public ParcelFileDescriptor getUserIcon(int targetUserId) { 1031 String iconPath; 1032 synchronized (mPackagesLock) { 1033 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 1034 if (targetUserInfo == null || targetUserInfo.partial) { 1035 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 1036 return null; 1037 } 1038 1039 final int callingUserId = UserHandle.getCallingUserId(); 1040 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 1041 final int targetGroupId = targetUserInfo.profileGroupId; 1042 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 1043 && callingGroupId == targetGroupId); 1044 if ((callingUserId != targetUserId) && !sameGroup) { 1045 checkManageUsersPermission("get the icon of a user who is not related"); 1046 } 1047 1048 if (targetUserInfo.iconPath == null) { 1049 return null; 1050 } 1051 iconPath = targetUserInfo.iconPath; 1052 } 1053 1054 try { 1055 return ParcelFileDescriptor.open( 1056 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 1057 } catch (FileNotFoundException e) { 1058 Log.e(LOG_TAG, "Couldn't find icon file", e); 1059 } 1060 return null; 1061 } 1062 1063 public void makeInitialized(int userId) { 1064 checkManageUsersPermission("makeInitialized"); 1065 boolean scheduleWriteUser = false; 1066 UserData userData; 1067 synchronized (mUsersLock) { 1068 userData = mUsers.get(userId); 1069 if (userData == null || userData.info.partial) { 1070 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 1071 return; 1072 } 1073 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1074 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1075 scheduleWriteUser = true; 1076 } 1077 } 1078 if (scheduleWriteUser) { 1079 scheduleWriteUser(userData); 1080 } 1081 } 1082 1083 /** 1084 * If default guest restrictions haven't been initialized yet, add the basic 1085 * restrictions. 1086 */ 1087 private void initDefaultGuestRestrictions() { 1088 synchronized (mGuestRestrictions) { 1089 if (mGuestRestrictions.isEmpty()) { 1090 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 1091 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 1092 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 1093 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 1094 } 1095 } 1096 } 1097 1098 @Override 1099 public Bundle getDefaultGuestRestrictions() { 1100 checkManageUsersPermission("getDefaultGuestRestrictions"); 1101 synchronized (mGuestRestrictions) { 1102 return new Bundle(mGuestRestrictions); 1103 } 1104 } 1105 1106 @Override 1107 public void setDefaultGuestRestrictions(Bundle restrictions) { 1108 checkManageUsersPermission("setDefaultGuestRestrictions"); 1109 synchronized (mGuestRestrictions) { 1110 mGuestRestrictions.clear(); 1111 mGuestRestrictions.putAll(restrictions); 1112 } 1113 synchronized (mPackagesLock) { 1114 writeUserListLP(); 1115 } 1116 } 1117 1118 /** 1119 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions(int, Bundle, Bundle)} 1120 */ 1121 void setDevicePolicyUserRestrictionsInner(int userId, @NonNull Bundle local, 1122 @Nullable Bundle global) { 1123 Preconditions.checkNotNull(local); 1124 boolean globalChanged = false; 1125 boolean localChanged; 1126 synchronized (mRestrictionsLock) { 1127 if (global != null) { 1128 // Update global. 1129 globalChanged = !UserRestrictionsUtils.areEqual( 1130 mDevicePolicyGlobalUserRestrictions, global); 1131 if (globalChanged) { 1132 mDevicePolicyGlobalUserRestrictions = global; 1133 } 1134 // Remember the global restriction owner userId to be able to make a distinction 1135 // in getUserRestrictionSource on who set local policies. 1136 mGlobalRestrictionOwnerUserId = userId; 1137 } else { 1138 if (mGlobalRestrictionOwnerUserId == userId) { 1139 // When profile owner sets restrictions it passes null global bundle and we 1140 // reset global restriction owner userId. 1141 // This means this user used to have DO, but now the DO is gone and the user 1142 // instead has PO. 1143 mGlobalRestrictionOwnerUserId = UserHandle.USER_NULL; 1144 } 1145 } 1146 { 1147 // Update local. 1148 final Bundle prev = mDevicePolicyLocalUserRestrictions.get(userId); 1149 localChanged = !UserRestrictionsUtils.areEqual(prev, local); 1150 if (localChanged) { 1151 mDevicePolicyLocalUserRestrictions.put(userId, local); 1152 } 1153 } 1154 } 1155 if (DBG) { 1156 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1157 + " global=" + global + (globalChanged ? " (changed)" : "") 1158 + " local=" + local + (localChanged ? " (changed)" : "") 1159 ); 1160 } 1161 // Don't call them within the mRestrictionsLock. 1162 synchronized (mPackagesLock) { 1163 if (localChanged) { 1164 writeUserLP(getUserDataNoChecks(userId)); 1165 } 1166 if (globalChanged) { 1167 writeUserListLP(); 1168 } 1169 } 1170 1171 synchronized (mRestrictionsLock) { 1172 if (globalChanged) { 1173 applyUserRestrictionsForAllUsersLR(); 1174 } else if (localChanged) { 1175 applyUserRestrictionsLR(userId); 1176 } 1177 } 1178 } 1179 1180 @GuardedBy("mRestrictionsLock") 1181 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1182 final Bundle baseRestrictions = 1183 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1184 final Bundle global = mDevicePolicyGlobalUserRestrictions; 1185 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1186 1187 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1188 // Common case first. 1189 return baseRestrictions; 1190 } 1191 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1192 UserRestrictionsUtils.merge(effective, global); 1193 UserRestrictionsUtils.merge(effective, local); 1194 1195 return effective; 1196 } 1197 1198 @GuardedBy("mRestrictionsLock") 1199 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1200 if (DBG) { 1201 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1202 } 1203 mCachedEffectiveUserRestrictions.remove(userId); 1204 } 1205 1206 private Bundle getEffectiveUserRestrictions(int userId) { 1207 synchronized (mRestrictionsLock) { 1208 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1209 if (restrictions == null) { 1210 restrictions = computeEffectiveUserRestrictionsLR(userId); 1211 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1212 } 1213 return restrictions; 1214 } 1215 } 1216 1217 /** @return a specific user restriction that's in effect currently. */ 1218 @Override 1219 public boolean hasUserRestriction(String restrictionKey, int userId) { 1220 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1221 return false; 1222 } 1223 Bundle restrictions = getEffectiveUserRestrictions(userId); 1224 return restrictions != null && restrictions.getBoolean(restrictionKey); 1225 } 1226 1227 /** 1228 * @hide 1229 * 1230 * Returns who set a user restriction on a user. 1231 * Requires {@link android.Manifest.permission#MANAGE_USERS} permission. 1232 * @param restrictionKey the string key representing the restriction 1233 * @param userId the id of the user for whom to retrieve the restrictions. 1234 * @return The source of user restriction. Any combination of 1235 * {@link UserManager#RESTRICTION_NOT_SET}, 1236 * {@link UserManager#RESTRICTION_SOURCE_SYSTEM}, 1237 * {@link UserManager#RESTRICTION_SOURCE_DEVICE_OWNER} 1238 * and {@link UserManager#RESTRICTION_SOURCE_PROFILE_OWNER} 1239 */ 1240 @Override 1241 public int getUserRestrictionSource(String restrictionKey, int userId) { 1242 checkManageUsersPermission("getUserRestrictionSource"); 1243 int result = UserManager.RESTRICTION_NOT_SET; 1244 1245 // Shortcut for the most common case 1246 if (!hasUserRestriction(restrictionKey, userId)) { 1247 return result; 1248 } 1249 1250 if (hasBaseUserRestriction(restrictionKey, userId)) { 1251 result |= UserManager.RESTRICTION_SOURCE_SYSTEM; 1252 } 1253 1254 synchronized(mRestrictionsLock) { 1255 Bundle localRestrictions = mDevicePolicyLocalUserRestrictions.get(userId); 1256 if (!UserRestrictionsUtils.isEmpty(localRestrictions) 1257 && localRestrictions.getBoolean(restrictionKey)) { 1258 // Local restrictions may have been set by device owner the userId of which is 1259 // stored in mGlobalRestrictionOwnerUserId. 1260 if (mGlobalRestrictionOwnerUserId == userId) { 1261 result |= UserManager.RESTRICTION_SOURCE_DEVICE_OWNER; 1262 } else { 1263 result |= UserManager.RESTRICTION_SOURCE_PROFILE_OWNER; 1264 } 1265 } 1266 if (!UserRestrictionsUtils.isEmpty(mDevicePolicyGlobalUserRestrictions) 1267 && mDevicePolicyGlobalUserRestrictions.getBoolean(restrictionKey)) { 1268 result |= UserManager.RESTRICTION_SOURCE_DEVICE_OWNER; 1269 } 1270 } 1271 1272 return result; 1273 } 1274 1275 /** 1276 * @return UserRestrictions that are in effect currently. This always returns a new 1277 * {@link Bundle}. 1278 */ 1279 @Override 1280 public Bundle getUserRestrictions(int userId) { 1281 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1282 } 1283 1284 @Override 1285 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1286 checkManageUsersPermission("hasBaseUserRestriction"); 1287 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1288 return false; 1289 } 1290 synchronized (mRestrictionsLock) { 1291 Bundle bundle = mBaseUserRestrictions.get(userId); 1292 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1293 } 1294 } 1295 1296 @Override 1297 public void setUserRestriction(String key, boolean value, int userId) { 1298 checkManageUsersPermission("setUserRestriction"); 1299 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1300 return; 1301 } 1302 synchronized (mRestrictionsLock) { 1303 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1304 // a copy. 1305 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1306 mBaseUserRestrictions.get(userId)); 1307 newRestrictions.putBoolean(key, value); 1308 1309 updateUserRestrictionsInternalLR(newRestrictions, userId); 1310 } 1311 } 1312 1313 /** 1314 * Optionally updating user restrictions, calculate the effective user restrictions and also 1315 * propagate to other services and system settings. 1316 * 1317 * @param newRestrictions User restrictions to set. 1318 * If null, will not update user restrictions and only does the propagation. 1319 * @param userId target user ID. 1320 */ 1321 @GuardedBy("mRestrictionsLock") 1322 private void updateUserRestrictionsInternalLR( 1323 @Nullable Bundle newRestrictions, int userId) { 1324 1325 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1326 mAppliedUserRestrictions.get(userId)); 1327 1328 // Update base restrictions. 1329 if (newRestrictions != null) { 1330 // If newRestrictions == the current one, it's probably a bug. 1331 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1332 1333 Preconditions.checkState(prevBaseRestrictions != newRestrictions); 1334 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1335 != newRestrictions); 1336 1337 if (!UserRestrictionsUtils.areEqual(prevBaseRestrictions, newRestrictions)) { 1338 mBaseUserRestrictions.put(userId, newRestrictions); 1339 scheduleWriteUser(getUserDataNoChecks(userId)); 1340 } 1341 } 1342 1343 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1344 1345 mCachedEffectiveUserRestrictions.put(userId, effective); 1346 1347 // Apply the new restrictions. 1348 if (DBG) { 1349 debug("Applying user restrictions: userId=" + userId 1350 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1351 } 1352 1353 if (mAppOpsService != null) { // We skip it until system-ready. 1354 mHandler.post(new Runnable() { 1355 @Override 1356 public void run() { 1357 try { 1358 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1359 } catch (RemoteException e) { 1360 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1361 } 1362 } 1363 }); 1364 } 1365 1366 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1367 1368 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1369 } 1370 1371 private void propagateUserRestrictionsLR(final int userId, 1372 Bundle newRestrictions, Bundle prevRestrictions) { 1373 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1374 // actually, but we still need some kind of synchronization otherwise we might end up 1375 // calling listeners out-of-order, thus "LR". 1376 1377 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1378 return; 1379 } 1380 1381 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1382 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1383 1384 mHandler.post(new Runnable() { 1385 @Override 1386 public void run() { 1387 UserRestrictionsUtils.applyUserRestrictions( 1388 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1389 1390 final UserRestrictionsListener[] listeners; 1391 synchronized (mUserRestrictionsListeners) { 1392 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1393 mUserRestrictionsListeners.toArray(listeners); 1394 } 1395 for (int i = 0; i < listeners.length; i++) { 1396 listeners[i].onUserRestrictionsChanged(userId, 1397 newRestrictionsFinal, prevRestrictionsFinal); 1398 } 1399 } 1400 }); 1401 } 1402 1403 // Package private for the inner class. 1404 void applyUserRestrictionsLR(int userId) { 1405 updateUserRestrictionsInternalLR(null, userId); 1406 } 1407 1408 @GuardedBy("mRestrictionsLock") 1409 // Package private for the inner class. 1410 void applyUserRestrictionsForAllUsersLR() { 1411 if (DBG) { 1412 debug("applyUserRestrictionsForAllUsersLR"); 1413 } 1414 // First, invalidate all cached values. 1415 mCachedEffectiveUserRestrictions.clear(); 1416 1417 // We don't want to call into ActivityManagerNative while taking a lock, so we'll call 1418 // it on a handler. 1419 final Runnable r = new Runnable() { 1420 @Override 1421 public void run() { 1422 // Then get the list of running users. 1423 final int[] runningUsers; 1424 try { 1425 runningUsers = ActivityManagerNative.getDefault().getRunningUserIds(); 1426 } catch (RemoteException e) { 1427 Log.w(LOG_TAG, "Unable to access ActivityManagerNative"); 1428 return; 1429 } 1430 // Then re-calculate the effective restrictions and apply, only for running users. 1431 // It's okay if a new user has started after the getRunningUserIds() call, 1432 // because we'll do the same thing (re-calculate the restrictions and apply) 1433 // when we start a user. 1434 synchronized (mRestrictionsLock) { 1435 for (int i = 0; i < runningUsers.length; i++) { 1436 applyUserRestrictionsLR(runningUsers[i]); 1437 } 1438 } 1439 } 1440 }; 1441 mHandler.post(r); 1442 } 1443 1444 /** 1445 * Check if we've hit the limit of how many users can be created. 1446 */ 1447 private boolean isUserLimitReached() { 1448 int count; 1449 synchronized (mUsersLock) { 1450 count = getAliveUsersExcludingGuestsCountLU(); 1451 } 1452 return count >= UserManager.getMaxSupportedUsers(); 1453 } 1454 1455 @Override 1456 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1457 checkManageUsersPermission("check if more managed profiles can be added."); 1458 if (ActivityManager.isLowRamDeviceStatic()) { 1459 return false; 1460 } 1461 if (!mContext.getPackageManager().hasSystemFeature( 1462 PackageManager.FEATURE_MANAGED_USERS)) { 1463 return false; 1464 } 1465 // Limit number of managed profiles that can be created 1466 final int managedProfilesCount = getProfiles(userId, true).size() - 1; 1467 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1468 if (managedProfilesCount - profilesRemovedCount >= MAX_MANAGED_PROFILES) { 1469 return false; 1470 } 1471 synchronized(mUsersLock) { 1472 UserInfo userInfo = getUserInfoLU(userId); 1473 if (!userInfo.canHaveProfile()) { 1474 return false; 1475 } 1476 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1477 - profilesRemovedCount; 1478 // We allow creating a managed profile in the special case where there is only one user. 1479 return usersCountAfterRemoving == 1 1480 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1481 } 1482 } 1483 1484 private int getAliveUsersExcludingGuestsCountLU() { 1485 int aliveUserCount = 0; 1486 final int totalUserCount = mUsers.size(); 1487 // Skip over users being removed 1488 for (int i = 0; i < totalUserCount; i++) { 1489 UserInfo user = mUsers.valueAt(i).info; 1490 if (!mRemovingUserIds.get(user.id) 1491 && !user.isGuest() && !user.partial) { 1492 aliveUserCount++; 1493 } 1494 } 1495 return aliveUserCount; 1496 } 1497 1498 /** 1499 * Enforces that only the system UID or root's UID or apps that have the 1500 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1501 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1502 * permissions can make certain calls to the UserManager. 1503 * 1504 * @param message used as message if SecurityException is thrown 1505 * @throws SecurityException if the caller does not have enough privilege. 1506 */ 1507 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1508 final int uid = Binder.getCallingUid(); 1509 if (uid != Process.SYSTEM_UID && uid != 0 1510 && ActivityManager.checkComponentPermission( 1511 Manifest.permission.MANAGE_USERS, 1512 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1513 && ActivityManager.checkComponentPermission( 1514 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1515 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1516 throw new SecurityException( 1517 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1518 + message); 1519 } 1520 } 1521 1522 /** 1523 * Enforces that only the system UID or root's UID or apps that have the 1524 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1525 * permission can make certain calls to the UserManager. 1526 * 1527 * @param message used as message if SecurityException is thrown 1528 * @throws SecurityException if the caller is not system or root 1529 * @see #hasManageUsersPermission() 1530 */ 1531 private static final void checkManageUsersPermission(String message) { 1532 if (!hasManageUsersPermission()) { 1533 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1534 } 1535 } 1536 1537 /** 1538 * Enforces that only the system UID or root's UID or apps that have the 1539 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1540 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} 1541 * can make certain calls to the UserManager. 1542 * 1543 * @param message used as message if SecurityException is thrown 1544 * @throws SecurityException if the caller is not system or root 1545 * @see #hasManageOrCreateUsersPermission() 1546 */ 1547 private static final void checkManageOrCreateUsersPermission(String message) { 1548 if (!hasManageOrCreateUsersPermission()) { 1549 throw new SecurityException( 1550 "You either need MANAGE_USERS or CREATE_USERS permission to: " + message); 1551 } 1552 } 1553 1554 /** 1555 * Similar to {@link #checkManageOrCreateUsersPermission(String)} but when the caller is tries 1556 * to create user/profiles other than what is allowed for 1557 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} permission, then it will only 1558 * allow callers with {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} permission. 1559 */ 1560 private static final void checkManageOrCreateUsersPermission(int creationFlags) { 1561 if ((creationFlags & ~ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION) == 0) { 1562 if (!hasManageOrCreateUsersPermission()) { 1563 throw new SecurityException("You either need MANAGE_USERS or CREATE_USERS " 1564 + "permission to create an user with flags: " + creationFlags); 1565 } 1566 } else if (!hasManageUsersPermission()) { 1567 throw new SecurityException("You need MANAGE_USERS permission to create an user " 1568 + " with flags: " + creationFlags); 1569 } 1570 } 1571 1572 /** 1573 * @return whether the calling UID is system UID or root's UID or the calling app has the 1574 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1575 */ 1576 private static final boolean hasManageUsersPermission() { 1577 final int callingUid = Binder.getCallingUid(); 1578 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1579 || callingUid == Process.ROOT_UID 1580 || ActivityManager.checkComponentPermission( 1581 android.Manifest.permission.MANAGE_USERS, 1582 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1583 } 1584 1585 /** 1586 * @return whether the calling UID is system UID or root's UID or the calling app has the 1587 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1588 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS}. 1589 */ 1590 private static final boolean hasManageOrCreateUsersPermission() { 1591 final int callingUid = Binder.getCallingUid(); 1592 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1593 || callingUid == Process.ROOT_UID 1594 || ActivityManager.checkComponentPermission( 1595 android.Manifest.permission.MANAGE_USERS, 1596 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED 1597 || ActivityManager.checkComponentPermission( 1598 android.Manifest.permission.CREATE_USERS, 1599 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1600 } 1601 1602 /** 1603 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1604 * UserManager. 1605 * 1606 * @param message used as message if SecurityException is thrown 1607 * @throws SecurityException if the caller is not system or root 1608 */ 1609 private static void checkSystemOrRoot(String message) { 1610 final int uid = Binder.getCallingUid(); 1611 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1612 throw new SecurityException("Only system may: " + message); 1613 } 1614 } 1615 1616 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1617 try { 1618 File dir = new File(mUsersDir, Integer.toString(info.id)); 1619 File file = new File(dir, USER_PHOTO_FILENAME); 1620 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1621 if (!dir.exists()) { 1622 dir.mkdir(); 1623 FileUtils.setPermissions( 1624 dir.getPath(), 1625 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1626 -1, -1); 1627 } 1628 FileOutputStream os; 1629 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1630 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1631 info.iconPath = file.getAbsolutePath(); 1632 } 1633 try { 1634 os.close(); 1635 } catch (IOException ioe) { 1636 // What the ... ! 1637 } 1638 tmp.delete(); 1639 } catch (FileNotFoundException e) { 1640 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1641 } 1642 } 1643 1644 /** 1645 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1646 * cache it elsewhere. 1647 * @return the array of user ids. 1648 */ 1649 public int[] getUserIds() { 1650 synchronized (mUsersLock) { 1651 return mUserIds; 1652 } 1653 } 1654 1655 private void readUserListLP() { 1656 if (!mUserListFile.exists()) { 1657 fallbackToSingleUserLP(); 1658 return; 1659 } 1660 FileInputStream fis = null; 1661 AtomicFile userListFile = new AtomicFile(mUserListFile); 1662 try { 1663 fis = userListFile.openRead(); 1664 XmlPullParser parser = Xml.newPullParser(); 1665 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1666 int type; 1667 while ((type = parser.next()) != XmlPullParser.START_TAG 1668 && type != XmlPullParser.END_DOCUMENT) { 1669 // Skip 1670 } 1671 1672 if (type != XmlPullParser.START_TAG) { 1673 Slog.e(LOG_TAG, "Unable to read user list"); 1674 fallbackToSingleUserLP(); 1675 return; 1676 } 1677 1678 mNextSerialNumber = -1; 1679 if (parser.getName().equals(TAG_USERS)) { 1680 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1681 if (lastSerialNumber != null) { 1682 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1683 } 1684 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1685 if (versionNumber != null) { 1686 mUserVersion = Integer.parseInt(versionNumber); 1687 } 1688 } 1689 1690 final Bundle newDevicePolicyGlobalUserRestrictions = new Bundle(); 1691 1692 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1693 if (type == XmlPullParser.START_TAG) { 1694 final String name = parser.getName(); 1695 if (name.equals(TAG_USER)) { 1696 String id = parser.getAttributeValue(null, ATTR_ID); 1697 1698 UserData userData = readUserLP(Integer.parseInt(id)); 1699 1700 if (userData != null) { 1701 synchronized (mUsersLock) { 1702 mUsers.put(userData.info.id, userData); 1703 if (mNextSerialNumber < 0 1704 || mNextSerialNumber <= userData.info.id) { 1705 mNextSerialNumber = userData.info.id + 1; 1706 } 1707 } 1708 } 1709 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1710 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1711 && type != XmlPullParser.END_TAG) { 1712 if (type == XmlPullParser.START_TAG) { 1713 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1714 synchronized (mGuestRestrictions) { 1715 UserRestrictionsUtils 1716 .readRestrictions(parser, mGuestRestrictions); 1717 } 1718 } else if (parser.getName().equals(TAG_DEVICE_POLICY_RESTRICTIONS) 1719 ) { 1720 UserRestrictionsUtils.readRestrictions(parser, 1721 newDevicePolicyGlobalUserRestrictions); 1722 } 1723 break; 1724 } 1725 } 1726 } else if (name.equals(TAG_GLOBAL_RESTRICTION_OWNER_ID)) { 1727 String ownerUserId = parser.getAttributeValue(null, ATTR_ID); 1728 if (ownerUserId != null) { 1729 mGlobalRestrictionOwnerUserId = Integer.parseInt(ownerUserId); 1730 } 1731 } 1732 } 1733 } 1734 synchronized (mRestrictionsLock) { 1735 mDevicePolicyGlobalUserRestrictions = newDevicePolicyGlobalUserRestrictions; 1736 } 1737 updateUserIds(); 1738 upgradeIfNecessaryLP(); 1739 } catch (IOException | XmlPullParserException e) { 1740 fallbackToSingleUserLP(); 1741 } finally { 1742 IoUtils.closeQuietly(fis); 1743 } 1744 } 1745 1746 /** 1747 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1748 */ 1749 private void upgradeIfNecessaryLP() { 1750 final int originalVersion = mUserVersion; 1751 int userVersion = mUserVersion; 1752 if (userVersion < 1) { 1753 // Assign a proper name for the owner, if not initialized correctly before 1754 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1755 if ("Primary".equals(userData.info.name)) { 1756 userData.info.name = 1757 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1758 scheduleWriteUser(userData); 1759 } 1760 userVersion = 1; 1761 } 1762 1763 if (userVersion < 2) { 1764 // Owner should be marked as initialized 1765 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1766 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1767 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1768 scheduleWriteUser(userData); 1769 } 1770 userVersion = 2; 1771 } 1772 1773 1774 if (userVersion < 4) { 1775 userVersion = 4; 1776 } 1777 1778 if (userVersion < 5) { 1779 initDefaultGuestRestrictions(); 1780 userVersion = 5; 1781 } 1782 1783 if (userVersion < 6) { 1784 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1785 synchronized (mUsersLock) { 1786 for (int i = 0; i < mUsers.size(); i++) { 1787 UserData userData = mUsers.valueAt(i); 1788 // In non-split mode, only user 0 can have restricted profiles 1789 if (!splitSystemUser && userData.info.isRestricted() 1790 && (userData.info.restrictedProfileParentId 1791 == UserInfo.NO_PROFILE_GROUP_ID)) { 1792 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1793 scheduleWriteUser(userData); 1794 } 1795 } 1796 } 1797 userVersion = 6; 1798 } 1799 1800 if (userVersion < USER_VERSION) { 1801 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1802 + USER_VERSION); 1803 } else { 1804 mUserVersion = userVersion; 1805 1806 if (originalVersion < mUserVersion) { 1807 writeUserListLP(); 1808 } 1809 } 1810 } 1811 1812 private void fallbackToSingleUserLP() { 1813 int flags = UserInfo.FLAG_INITIALIZED; 1814 // In split system user mode, the admin and primary flags are assigned to the first human 1815 // user. 1816 if (!UserManager.isSplitSystemUser()) { 1817 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1818 } 1819 // Create the system user 1820 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 1821 UserData userData = new UserData(); 1822 userData.info = system; 1823 synchronized (mUsersLock) { 1824 mUsers.put(system.id, userData); 1825 } 1826 mNextSerialNumber = MIN_USER_ID; 1827 mUserVersion = USER_VERSION; 1828 1829 Bundle restrictions = new Bundle(); 1830 try { 1831 final String[] defaultFirstUserRestrictions = mContext.getResources().getStringArray( 1832 com.android.internal.R.array.config_defaultFirstUserRestrictions); 1833 for (String userRestriction : defaultFirstUserRestrictions) { 1834 if (UserRestrictionsUtils.isValidRestriction(userRestriction)) { 1835 restrictions.putBoolean(userRestriction, true); 1836 } 1837 } 1838 } catch (Resources.NotFoundException e) { 1839 Log.e(LOG_TAG, "Couldn't find resource: config_defaultFirstUserRestrictions", e); 1840 } 1841 1842 synchronized (mRestrictionsLock) { 1843 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1844 } 1845 1846 updateUserIds(); 1847 initDefaultGuestRestrictions(); 1848 1849 writeUserLP(userData); 1850 writeUserListLP(); 1851 } 1852 1853 private String getOwnerName() { 1854 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 1855 } 1856 1857 private void scheduleWriteUser(UserData UserData) { 1858 if (DBG) { 1859 debug("scheduleWriteUser"); 1860 } 1861 // No need to wrap it within a lock -- worst case, we'll just post the same message 1862 // twice. 1863 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 1864 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 1865 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1866 } 1867 } 1868 1869 /* 1870 * Writes the user file in this format: 1871 * 1872 * <user flags="20039023" id="0"> 1873 * <name>Primary</name> 1874 * </user> 1875 */ 1876 private void writeUserLP(UserData userData) { 1877 if (DBG) { 1878 debug("writeUserLP " + userData); 1879 } 1880 FileOutputStream fos = null; 1881 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 1882 try { 1883 fos = userFile.startWrite(); 1884 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1885 1886 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1887 final XmlSerializer serializer = new FastXmlSerializer(); 1888 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1889 serializer.startDocument(null, true); 1890 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1891 1892 final UserInfo userInfo = userData.info; 1893 serializer.startTag(null, TAG_USER); 1894 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 1895 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 1896 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 1897 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 1898 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 1899 Long.toString(userInfo.lastLoggedInTime)); 1900 if (userInfo.lastLoggedInFingerprint != null) { 1901 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 1902 userInfo.lastLoggedInFingerprint); 1903 } 1904 if (userInfo.iconPath != null) { 1905 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 1906 } 1907 if (userInfo.partial) { 1908 serializer.attribute(null, ATTR_PARTIAL, "true"); 1909 } 1910 if (userInfo.guestToRemove) { 1911 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 1912 } 1913 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 1914 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 1915 Integer.toString(userInfo.profileGroupId)); 1916 } 1917 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 1918 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 1919 Integer.toString(userInfo.restrictedProfileParentId)); 1920 } 1921 // Write seed data 1922 if (userData.persistSeedData) { 1923 if (userData.seedAccountName != null) { 1924 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 1925 } 1926 if (userData.seedAccountType != null) { 1927 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 1928 } 1929 } 1930 if (userInfo.name != null) { 1931 serializer.startTag(null, TAG_NAME); 1932 serializer.text(userInfo.name); 1933 serializer.endTag(null, TAG_NAME); 1934 } 1935 synchronized (mRestrictionsLock) { 1936 UserRestrictionsUtils.writeRestrictions(serializer, 1937 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 1938 UserRestrictionsUtils.writeRestrictions(serializer, 1939 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 1940 TAG_DEVICE_POLICY_RESTRICTIONS); 1941 } 1942 1943 if (userData.account != null) { 1944 serializer.startTag(null, TAG_ACCOUNT); 1945 serializer.text(userData.account); 1946 serializer.endTag(null, TAG_ACCOUNT); 1947 } 1948 1949 if (userData.persistSeedData && userData.seedAccountOptions != null) { 1950 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1951 userData.seedAccountOptions.saveToXml(serializer); 1952 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1953 } 1954 serializer.endTag(null, TAG_USER); 1955 1956 serializer.endDocument(); 1957 userFile.finishWrite(fos); 1958 } catch (Exception ioe) { 1959 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 1960 userFile.failWrite(fos); 1961 } 1962 } 1963 1964 /* 1965 * Writes the user list file in this format: 1966 * 1967 * <users nextSerialNumber="3"> 1968 * <user id="0"></user> 1969 * <user id="2"></user> 1970 * </users> 1971 */ 1972 private void writeUserListLP() { 1973 if (DBG) { 1974 debug("writeUserList"); 1975 } 1976 FileOutputStream fos = null; 1977 AtomicFile userListFile = new AtomicFile(mUserListFile); 1978 try { 1979 fos = userListFile.startWrite(); 1980 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1981 1982 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1983 final XmlSerializer serializer = new FastXmlSerializer(); 1984 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1985 serializer.startDocument(null, true); 1986 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1987 1988 serializer.startTag(null, TAG_USERS); 1989 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 1990 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 1991 1992 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 1993 synchronized (mGuestRestrictions) { 1994 UserRestrictionsUtils 1995 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 1996 } 1997 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 1998 synchronized (mRestrictionsLock) { 1999 UserRestrictionsUtils.writeRestrictions(serializer, 2000 mDevicePolicyGlobalUserRestrictions, TAG_DEVICE_POLICY_RESTRICTIONS); 2001 } 2002 serializer.startTag(null, TAG_GLOBAL_RESTRICTION_OWNER_ID); 2003 serializer.attribute(null, ATTR_ID, Integer.toString(mGlobalRestrictionOwnerUserId)); 2004 serializer.endTag(null, TAG_GLOBAL_RESTRICTION_OWNER_ID); 2005 int[] userIdsToWrite; 2006 synchronized (mUsersLock) { 2007 userIdsToWrite = new int[mUsers.size()]; 2008 for (int i = 0; i < userIdsToWrite.length; i++) { 2009 UserInfo user = mUsers.valueAt(i).info; 2010 userIdsToWrite[i] = user.id; 2011 } 2012 } 2013 for (int id : userIdsToWrite) { 2014 serializer.startTag(null, TAG_USER); 2015 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 2016 serializer.endTag(null, TAG_USER); 2017 } 2018 2019 serializer.endTag(null, TAG_USERS); 2020 2021 serializer.endDocument(); 2022 userListFile.finishWrite(fos); 2023 } catch (Exception e) { 2024 userListFile.failWrite(fos); 2025 Slog.e(LOG_TAG, "Error writing user list"); 2026 } 2027 } 2028 2029 private UserData readUserLP(int id) { 2030 int flags = 0; 2031 int serialNumber = id; 2032 String name = null; 2033 String account = null; 2034 String iconPath = null; 2035 long creationTime = 0L; 2036 long lastLoggedInTime = 0L; 2037 String lastLoggedInFingerprint = null; 2038 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 2039 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 2040 boolean partial = false; 2041 boolean guestToRemove = false; 2042 boolean persistSeedData = false; 2043 String seedAccountName = null; 2044 String seedAccountType = null; 2045 PersistableBundle seedAccountOptions = null; 2046 Bundle baseRestrictions = new Bundle(); 2047 Bundle localRestrictions = new Bundle(); 2048 2049 FileInputStream fis = null; 2050 try { 2051 AtomicFile userFile = 2052 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 2053 fis = userFile.openRead(); 2054 XmlPullParser parser = Xml.newPullParser(); 2055 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2056 int type; 2057 while ((type = parser.next()) != XmlPullParser.START_TAG 2058 && type != XmlPullParser.END_DOCUMENT) { 2059 // Skip 2060 } 2061 2062 if (type != XmlPullParser.START_TAG) { 2063 Slog.e(LOG_TAG, "Unable to read user " + id); 2064 return null; 2065 } 2066 2067 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 2068 int storedId = readIntAttribute(parser, ATTR_ID, -1); 2069 if (storedId != id) { 2070 Slog.e(LOG_TAG, "User id does not match the file name"); 2071 return null; 2072 } 2073 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 2074 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 2075 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 2076 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 2077 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 2078 lastLoggedInFingerprint = parser.getAttributeValue(null, 2079 ATTR_LAST_LOGGED_IN_FINGERPRINT); 2080 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 2081 UserInfo.NO_PROFILE_GROUP_ID); 2082 restrictedProfileParentId = readIntAttribute(parser, 2083 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 2084 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 2085 if ("true".equals(valueString)) { 2086 partial = true; 2087 } 2088 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 2089 if ("true".equals(valueString)) { 2090 guestToRemove = true; 2091 } 2092 2093 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 2094 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 2095 if (seedAccountName != null || seedAccountType != null) { 2096 persistSeedData = true; 2097 } 2098 2099 int outerDepth = parser.getDepth(); 2100 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 2101 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2102 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2103 continue; 2104 } 2105 String tag = parser.getName(); 2106 if (TAG_NAME.equals(tag)) { 2107 type = parser.next(); 2108 if (type == XmlPullParser.TEXT) { 2109 name = parser.getText(); 2110 } 2111 } else if (TAG_RESTRICTIONS.equals(tag)) { 2112 UserRestrictionsUtils.readRestrictions(parser, baseRestrictions); 2113 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 2114 UserRestrictionsUtils.readRestrictions(parser, localRestrictions); 2115 } else if (TAG_ACCOUNT.equals(tag)) { 2116 type = parser.next(); 2117 if (type == XmlPullParser.TEXT) { 2118 account = parser.getText(); 2119 } 2120 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 2121 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 2122 persistSeedData = true; 2123 } 2124 } 2125 } 2126 2127 // Create the UserInfo object that gets passed around 2128 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 2129 userInfo.serialNumber = serialNumber; 2130 userInfo.creationTime = creationTime; 2131 userInfo.lastLoggedInTime = lastLoggedInTime; 2132 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 2133 userInfo.partial = partial; 2134 userInfo.guestToRemove = guestToRemove; 2135 userInfo.profileGroupId = profileGroupId; 2136 userInfo.restrictedProfileParentId = restrictedProfileParentId; 2137 2138 // Create the UserData object that's internal to this class 2139 UserData userData = new UserData(); 2140 userData.info = userInfo; 2141 userData.account = account; 2142 userData.seedAccountName = seedAccountName; 2143 userData.seedAccountType = seedAccountType; 2144 userData.persistSeedData = persistSeedData; 2145 userData.seedAccountOptions = seedAccountOptions; 2146 2147 synchronized (mRestrictionsLock) { 2148 mBaseUserRestrictions.put(id, baseRestrictions); 2149 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 2150 } 2151 return userData; 2152 } catch (IOException ioe) { 2153 } catch (XmlPullParserException pe) { 2154 } finally { 2155 if (fis != null) { 2156 try { 2157 fis.close(); 2158 } catch (IOException e) { 2159 } 2160 } 2161 } 2162 return null; 2163 } 2164 2165 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 2166 String valueString = parser.getAttributeValue(null, attr); 2167 if (valueString == null) return defaultValue; 2168 try { 2169 return Integer.parseInt(valueString); 2170 } catch (NumberFormatException nfe) { 2171 return defaultValue; 2172 } 2173 } 2174 2175 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 2176 String valueString = parser.getAttributeValue(null, attr); 2177 if (valueString == null) return defaultValue; 2178 try { 2179 return Long.parseLong(valueString); 2180 } catch (NumberFormatException nfe) { 2181 return defaultValue; 2182 } 2183 } 2184 2185 /** 2186 * Removes the app restrictions file for a specific package and user id, if it exists. 2187 */ 2188 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 2189 synchronized (mPackagesLock) { 2190 File dir = Environment.getUserSystemDirectory(userId); 2191 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 2192 if (resFile.exists()) { 2193 resFile.delete(); 2194 } 2195 } 2196 } 2197 2198 @Override 2199 public UserInfo createProfileForUser(String name, int flags, int userId) { 2200 checkManageOrCreateUsersPermission(flags); 2201 return createUserInternal(name, flags, userId); 2202 } 2203 2204 @Override 2205 public UserInfo createUser(String name, int flags) { 2206 checkManageOrCreateUsersPermission(flags); 2207 return createUserInternal(name, flags, UserHandle.USER_NULL); 2208 } 2209 2210 private UserInfo createUserInternal(String name, int flags, int parentId) { 2211 if (hasUserRestriction(UserManager.DISALLOW_ADD_USER, UserHandle.getCallingUserId())) { 2212 Log.w(LOG_TAG, "Cannot add user. DISALLOW_ADD_USER is enabled."); 2213 return null; 2214 } 2215 return createUserInternalUnchecked(name, flags, parentId); 2216 } 2217 2218 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId) { 2219 if (ActivityManager.isLowRamDeviceStatic()) { 2220 return null; 2221 } 2222 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 2223 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 2224 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 2225 final boolean isDemo = (flags & UserInfo.FLAG_DEMO) != 0; 2226 final long ident = Binder.clearCallingIdentity(); 2227 UserInfo userInfo; 2228 UserData userData; 2229 final int userId; 2230 try { 2231 synchronized (mPackagesLock) { 2232 UserData parent = null; 2233 if (parentId != UserHandle.USER_NULL) { 2234 synchronized (mUsersLock) { 2235 parent = getUserDataLU(parentId); 2236 } 2237 if (parent == null) return null; 2238 } 2239 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 2240 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 2241 return null; 2242 } 2243 if (!isGuest && !isManagedProfile && !isDemo && isUserLimitReached()) { 2244 // If we're not adding a guest/demo user or a managed profile and the limit has 2245 // been reached, cannot add a user. 2246 return null; 2247 } 2248 // If we're adding a guest and there already exists one, bail. 2249 if (isGuest && findCurrentGuestUser() != null) { 2250 return null; 2251 } 2252 // In legacy mode, restricted profile's parent can only be the owner user 2253 if (isRestricted && !UserManager.isSplitSystemUser() 2254 && (parentId != UserHandle.USER_SYSTEM)) { 2255 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 2256 return null; 2257 } 2258 if (isRestricted && UserManager.isSplitSystemUser()) { 2259 if (parent == null) { 2260 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 2261 + "specified"); 2262 return null; 2263 } 2264 if (!parent.info.canHaveProfile()) { 2265 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 2266 + "created for the specified parent user id " + parentId); 2267 return null; 2268 } 2269 } 2270 if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0 2271 && (flags & UserInfo.FLAG_DEMO) == 0) { 2272 Log.e(LOG_TAG, 2273 "Ephemeral users are supported on split-system-user systems only."); 2274 return null; 2275 } 2276 // In split system user mode, we assign the first human user the primary flag. 2277 // And if there is no device owner, we also assign the admin flag to primary user. 2278 if (UserManager.isSplitSystemUser() 2279 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2280 flags |= UserInfo.FLAG_PRIMARY; 2281 synchronized (mUsersLock) { 2282 if (!mIsDeviceManaged) { 2283 flags |= UserInfo.FLAG_ADMIN; 2284 } 2285 } 2286 } 2287 2288 userId = getNextAvailableId(); 2289 Environment.getUserSystemDirectory(userId).mkdirs(); 2290 boolean ephemeralGuests = Resources.getSystem() 2291 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2292 2293 synchronized (mUsersLock) { 2294 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2295 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2296 || (parent != null && parent.info.isEphemeral())) { 2297 flags |= UserInfo.FLAG_EPHEMERAL; 2298 } 2299 2300 userInfo = new UserInfo(userId, name, null, flags); 2301 userInfo.serialNumber = mNextSerialNumber++; 2302 long now = System.currentTimeMillis(); 2303 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2304 userInfo.partial = true; 2305 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2306 userData = new UserData(); 2307 userData.info = userInfo; 2308 mUsers.put(userId, userData); 2309 } 2310 writeUserLP(userData); 2311 writeUserListLP(); 2312 if (parent != null) { 2313 if (isManagedProfile) { 2314 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2315 parent.info.profileGroupId = parent.info.id; 2316 writeUserLP(parent); 2317 } 2318 userInfo.profileGroupId = parent.info.profileGroupId; 2319 } else if (isRestricted) { 2320 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2321 parent.info.restrictedProfileParentId = parent.info.id; 2322 writeUserLP(parent); 2323 } 2324 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2325 } 2326 } 2327 } 2328 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2329 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2330 mPm.prepareUserData(userId, userInfo.serialNumber, 2331 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2332 mPm.createNewUser(userId); 2333 userInfo.partial = false; 2334 synchronized (mPackagesLock) { 2335 writeUserLP(userData); 2336 } 2337 updateUserIds(); 2338 Bundle restrictions = new Bundle(); 2339 if (isGuest) { 2340 synchronized (mGuestRestrictions) { 2341 restrictions.putAll(mGuestRestrictions); 2342 } 2343 } 2344 synchronized (mRestrictionsLock) { 2345 mBaseUserRestrictions.append(userId, restrictions); 2346 } 2347 mPm.onNewUserCreated(userId); 2348 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2349 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2350 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2351 android.Manifest.permission.MANAGE_USERS); 2352 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED : TRON_USER_CREATED, 1); 2353 } finally { 2354 Binder.restoreCallingIdentity(ident); 2355 } 2356 return userInfo; 2357 } 2358 2359 /** 2360 * @hide 2361 */ 2362 @Override 2363 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2364 checkManageOrCreateUsersPermission("setupRestrictedProfile"); 2365 final UserInfo user = createProfileForUser(name, UserInfo.FLAG_RESTRICTED, parentUserId); 2366 if (user == null) { 2367 return null; 2368 } 2369 long identity = Binder.clearCallingIdentity(); 2370 try { 2371 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2372 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2373 // the putIntForUser() will fail. 2374 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2375 android.provider.Settings.Secure.LOCATION_MODE, 2376 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2377 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2378 } finally { 2379 Binder.restoreCallingIdentity(identity); 2380 } 2381 return user; 2382 } 2383 2384 /** 2385 * Find the current guest user. If the Guest user is partial, 2386 * then do not include it in the results as it is about to die. 2387 */ 2388 private UserInfo findCurrentGuestUser() { 2389 synchronized (mUsersLock) { 2390 final int size = mUsers.size(); 2391 for (int i = 0; i < size; i++) { 2392 final UserInfo user = mUsers.valueAt(i).info; 2393 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2394 return user; 2395 } 2396 } 2397 } 2398 return null; 2399 } 2400 2401 /** 2402 * Mark this guest user for deletion to allow us to create another guest 2403 * and switch to that user before actually removing this guest. 2404 * @param userHandle the userid of the current guest 2405 * @return whether the user could be marked for deletion 2406 */ 2407 @Override 2408 public boolean markGuestForDeletion(int userHandle) { 2409 checkManageUsersPermission("Only the system can remove users"); 2410 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2411 UserManager.DISALLOW_REMOVE_USER, false)) { 2412 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2413 return false; 2414 } 2415 2416 long ident = Binder.clearCallingIdentity(); 2417 try { 2418 final UserData userData; 2419 synchronized (mPackagesLock) { 2420 synchronized (mUsersLock) { 2421 userData = mUsers.get(userHandle); 2422 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2423 return false; 2424 } 2425 } 2426 if (!userData.info.isGuest()) { 2427 return false; 2428 } 2429 // We set this to a guest user that is to be removed. This is a temporary state 2430 // where we are allowed to add new Guest users, even if this one is still not 2431 // removed. This user will still show up in getUserInfo() calls. 2432 // If we don't get around to removing this Guest user, it will be purged on next 2433 // startup. 2434 userData.info.guestToRemove = true; 2435 // Mark it as disabled, so that it isn't returned any more when 2436 // profiles are queried. 2437 userData.info.flags |= UserInfo.FLAG_DISABLED; 2438 writeUserLP(userData); 2439 } 2440 } finally { 2441 Binder.restoreCallingIdentity(ident); 2442 } 2443 return true; 2444 } 2445 2446 /** 2447 * Removes a user and all data directories created for that user. This method should be called 2448 * after the user's processes have been terminated. 2449 * @param userHandle the user's id 2450 */ 2451 @Override 2452 public boolean removeUser(int userHandle) { 2453 checkManageOrCreateUsersPermission("Only the system can remove users"); 2454 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2455 UserManager.DISALLOW_REMOVE_USER, false)) { 2456 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2457 return false; 2458 } 2459 2460 long ident = Binder.clearCallingIdentity(); 2461 try { 2462 final UserData userData; 2463 int currentUser = ActivityManager.getCurrentUser(); 2464 if (currentUser == userHandle) { 2465 Log.w(LOG_TAG, "Current user cannot be removed"); 2466 return false; 2467 } 2468 synchronized (mPackagesLock) { 2469 synchronized (mUsersLock) { 2470 userData = mUsers.get(userHandle); 2471 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2472 return false; 2473 } 2474 2475 // We remember deleted user IDs to prevent them from being 2476 // reused during the current boot; they can still be reused 2477 // after a reboot. 2478 mRemovingUserIds.put(userHandle, true); 2479 } 2480 2481 try { 2482 mAppOpsService.removeUser(userHandle); 2483 } catch (RemoteException e) { 2484 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2485 } 2486 // Set this to a partially created user, so that the user will be purged 2487 // on next startup, in case the runtime stops now before stopping and 2488 // removing the user completely. 2489 userData.info.partial = true; 2490 // Mark it as disabled, so that it isn't returned any more when 2491 // profiles are queried. 2492 userData.info.flags |= UserInfo.FLAG_DISABLED; 2493 writeUserLP(userData); 2494 } 2495 2496 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2497 && userData.info.isManagedProfile()) { 2498 // Send broadcast to notify system that the user removed was a 2499 // managed user. 2500 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2501 } 2502 2503 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2504 int res; 2505 try { 2506 res = ActivityManagerNative.getDefault().stopUser(userHandle, /* force= */ true, 2507 new IStopUserCallback.Stub() { 2508 @Override 2509 public void userStopped(int userId) { 2510 finishRemoveUser(userId); 2511 } 2512 @Override 2513 public void userStopAborted(int userId) { 2514 } 2515 }); 2516 } catch (RemoteException e) { 2517 return false; 2518 } 2519 return res == ActivityManager.USER_OP_SUCCESS; 2520 } finally { 2521 Binder.restoreCallingIdentity(ident); 2522 } 2523 } 2524 2525 void finishRemoveUser(final int userHandle) { 2526 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2527 // Let other services shutdown any activity and clean up their state before completely 2528 // wiping the user's system directory and removing from the user list 2529 long ident = Binder.clearCallingIdentity(); 2530 try { 2531 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2532 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2533 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2534 android.Manifest.permission.MANAGE_USERS, 2535 2536 new BroadcastReceiver() { 2537 @Override 2538 public void onReceive(Context context, Intent intent) { 2539 if (DBG) { 2540 Slog.i(LOG_TAG, 2541 "USER_REMOVED broadcast sent, cleaning up user data " 2542 + userHandle); 2543 } 2544 new Thread() { 2545 @Override 2546 public void run() { 2547 // Clean up any ActivityManager state 2548 LocalServices.getService(ActivityManagerInternal.class) 2549 .onUserRemoved(userHandle); 2550 removeUserState(userHandle); 2551 } 2552 }.start(); 2553 } 2554 }, 2555 2556 null, Activity.RESULT_OK, null, null); 2557 } finally { 2558 Binder.restoreCallingIdentity(ident); 2559 } 2560 } 2561 2562 private void removeUserState(final int userHandle) { 2563 try { 2564 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2565 } catch (IllegalStateException e) { 2566 // This may be simply because the user was partially created. 2567 Slog.i(LOG_TAG, 2568 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2569 } 2570 2571 // Cleanup gatekeeper secure user id 2572 try { 2573 final IGateKeeperService gk = GateKeeper.getService(); 2574 if (gk != null) { 2575 gk.clearSecureUserId(userHandle); 2576 } 2577 } catch (Exception ex) { 2578 Slog.w(LOG_TAG, "unable to clear GK secure user id"); 2579 } 2580 2581 // Cleanup package manager settings 2582 mPm.cleanUpUser(this, userHandle); 2583 2584 // Clean up all data before removing metadata 2585 mPm.destroyUserData(userHandle, 2586 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2587 2588 // Remove this user from the list 2589 synchronized (mUsersLock) { 2590 mUsers.remove(userHandle); 2591 mIsUserManaged.delete(userHandle); 2592 } 2593 synchronized (mUserStates) { 2594 mUserStates.delete(userHandle); 2595 } 2596 synchronized (mRestrictionsLock) { 2597 mBaseUserRestrictions.remove(userHandle); 2598 mAppliedUserRestrictions.remove(userHandle); 2599 mCachedEffectiveUserRestrictions.remove(userHandle); 2600 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2601 } 2602 // Update the user list 2603 synchronized (mPackagesLock) { 2604 writeUserListLP(); 2605 } 2606 // Remove user file 2607 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2608 userFile.delete(); 2609 updateUserIds(); 2610 } 2611 2612 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2613 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2614 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2615 Intent.FLAG_RECEIVER_FOREGROUND); 2616 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2617 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2618 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2619 } 2620 2621 @Override 2622 public Bundle getApplicationRestrictions(String packageName) { 2623 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2624 } 2625 2626 @Override 2627 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2628 if (UserHandle.getCallingUserId() != userId 2629 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2630 checkSystemOrRoot("get application restrictions for other users/apps"); 2631 } 2632 synchronized (mPackagesLock) { 2633 // Read the restrictions from XML 2634 return readApplicationRestrictionsLP(packageName, userId); 2635 } 2636 } 2637 2638 @Override 2639 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2640 int userId) { 2641 checkSystemOrRoot("set application restrictions"); 2642 if (restrictions != null) { 2643 restrictions.setDefusable(true); 2644 } 2645 synchronized (mPackagesLock) { 2646 if (restrictions == null || restrictions.isEmpty()) { 2647 cleanAppRestrictionsForPackage(packageName, userId); 2648 } else { 2649 // Write the restrictions to XML 2650 writeApplicationRestrictionsLP(packageName, restrictions, userId); 2651 } 2652 } 2653 2654 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2655 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2656 changeIntent.setPackage(packageName); 2657 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2658 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2659 } 2660 2661 private int getUidForPackage(String packageName) { 2662 long ident = Binder.clearCallingIdentity(); 2663 try { 2664 return mContext.getPackageManager().getApplicationInfo(packageName, 2665 PackageManager.MATCH_UNINSTALLED_PACKAGES).uid; 2666 } catch (NameNotFoundException nnfe) { 2667 return -1; 2668 } finally { 2669 Binder.restoreCallingIdentity(ident); 2670 } 2671 } 2672 2673 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 2674 AtomicFile restrictionsFile = 2675 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2676 packageToRestrictionsFileName(packageName))); 2677 return readApplicationRestrictionsLP(restrictionsFile); 2678 } 2679 2680 @VisibleForTesting 2681 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 2682 final Bundle restrictions = new Bundle(); 2683 final ArrayList<String> values = new ArrayList<>(); 2684 if (!restrictionsFile.getBaseFile().exists()) { 2685 return restrictions; 2686 } 2687 2688 FileInputStream fis = null; 2689 try { 2690 fis = restrictionsFile.openRead(); 2691 XmlPullParser parser = Xml.newPullParser(); 2692 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2693 XmlUtils.nextElement(parser); 2694 if (parser.getEventType() != XmlPullParser.START_TAG) { 2695 Slog.e(LOG_TAG, "Unable to read restrictions file " 2696 + restrictionsFile.getBaseFile()); 2697 return restrictions; 2698 } 2699 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2700 readEntry(restrictions, values, parser); 2701 } 2702 } catch (IOException|XmlPullParserException e) { 2703 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2704 } finally { 2705 IoUtils.closeQuietly(fis); 2706 } 2707 return restrictions; 2708 } 2709 2710 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2711 XmlPullParser parser) throws XmlPullParserException, IOException { 2712 int type = parser.getEventType(); 2713 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2714 String key = parser.getAttributeValue(null, ATTR_KEY); 2715 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2716 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2717 if (multiple != null) { 2718 values.clear(); 2719 int count = Integer.parseInt(multiple); 2720 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2721 if (type == XmlPullParser.START_TAG 2722 && parser.getName().equals(TAG_VALUE)) { 2723 values.add(parser.nextText().trim()); 2724 count--; 2725 } 2726 } 2727 String [] valueStrings = new String[values.size()]; 2728 values.toArray(valueStrings); 2729 restrictions.putStringArray(key, valueStrings); 2730 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2731 restrictions.putBundle(key, readBundleEntry(parser, values)); 2732 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2733 final int outerDepth = parser.getDepth(); 2734 ArrayList<Bundle> bundleList = new ArrayList<>(); 2735 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2736 Bundle childBundle = readBundleEntry(parser, values); 2737 bundleList.add(childBundle); 2738 } 2739 restrictions.putParcelableArray(key, 2740 bundleList.toArray(new Bundle[bundleList.size()])); 2741 } else { 2742 String value = parser.nextText().trim(); 2743 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2744 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2745 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2746 restrictions.putInt(key, Integer.parseInt(value)); 2747 } else { 2748 restrictions.putString(key, value); 2749 } 2750 } 2751 } 2752 } 2753 2754 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2755 throws IOException, XmlPullParserException { 2756 Bundle childBundle = new Bundle(); 2757 final int outerDepth = parser.getDepth(); 2758 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2759 readEntry(childBundle, values, parser); 2760 } 2761 return childBundle; 2762 } 2763 2764 private void writeApplicationRestrictionsLP(String packageName, 2765 Bundle restrictions, int userId) { 2766 AtomicFile restrictionsFile = new AtomicFile( 2767 new File(Environment.getUserSystemDirectory(userId), 2768 packageToRestrictionsFileName(packageName))); 2769 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 2770 } 2771 2772 @VisibleForTesting 2773 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 2774 FileOutputStream fos = null; 2775 try { 2776 fos = restrictionsFile.startWrite(); 2777 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2778 2779 final XmlSerializer serializer = new FastXmlSerializer(); 2780 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2781 serializer.startDocument(null, true); 2782 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2783 2784 serializer.startTag(null, TAG_RESTRICTIONS); 2785 writeBundle(restrictions, serializer); 2786 serializer.endTag(null, TAG_RESTRICTIONS); 2787 2788 serializer.endDocument(); 2789 restrictionsFile.finishWrite(fos); 2790 } catch (Exception e) { 2791 restrictionsFile.failWrite(fos); 2792 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 2793 } 2794 } 2795 2796 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 2797 throws IOException { 2798 for (String key : restrictions.keySet()) { 2799 Object value = restrictions.get(key); 2800 serializer.startTag(null, TAG_ENTRY); 2801 serializer.attribute(null, ATTR_KEY, key); 2802 2803 if (value instanceof Boolean) { 2804 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 2805 serializer.text(value.toString()); 2806 } else if (value instanceof Integer) { 2807 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 2808 serializer.text(value.toString()); 2809 } else if (value == null || value instanceof String) { 2810 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 2811 serializer.text(value != null ? (String) value : ""); 2812 } else if (value instanceof Bundle) { 2813 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2814 writeBundle((Bundle) value, serializer); 2815 } else if (value instanceof Parcelable[]) { 2816 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 2817 Parcelable[] array = (Parcelable[]) value; 2818 for (Parcelable parcelable : array) { 2819 if (!(parcelable instanceof Bundle)) { 2820 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 2821 } 2822 serializer.startTag(null, TAG_ENTRY); 2823 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2824 writeBundle((Bundle) parcelable, serializer); 2825 serializer.endTag(null, TAG_ENTRY); 2826 } 2827 } else { 2828 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 2829 String[] values = (String[]) value; 2830 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 2831 for (String choice : values) { 2832 serializer.startTag(null, TAG_VALUE); 2833 serializer.text(choice != null ? choice : ""); 2834 serializer.endTag(null, TAG_VALUE); 2835 } 2836 } 2837 serializer.endTag(null, TAG_ENTRY); 2838 } 2839 } 2840 2841 @Override 2842 public int getUserSerialNumber(int userHandle) { 2843 synchronized (mUsersLock) { 2844 if (!exists(userHandle)) return -1; 2845 return getUserInfoLU(userHandle).serialNumber; 2846 } 2847 } 2848 2849 @Override 2850 public int getUserHandle(int userSerialNumber) { 2851 synchronized (mUsersLock) { 2852 for (int userId : mUserIds) { 2853 UserInfo info = getUserInfoLU(userId); 2854 if (info != null && info.serialNumber == userSerialNumber) return userId; 2855 } 2856 // Not found 2857 return -1; 2858 } 2859 } 2860 2861 @Override 2862 public long getUserCreationTime(int userHandle) { 2863 int callingUserId = UserHandle.getCallingUserId(); 2864 UserInfo userInfo = null; 2865 synchronized (mUsersLock) { 2866 if (callingUserId == userHandle) { 2867 userInfo = getUserInfoLU(userHandle); 2868 } else { 2869 UserInfo parent = getProfileParentLU(userHandle); 2870 if (parent != null && parent.id == callingUserId) { 2871 userInfo = getUserInfoLU(userHandle); 2872 } 2873 } 2874 } 2875 if (userInfo == null) { 2876 throw new SecurityException("userHandle can only be the calling user or a managed " 2877 + "profile associated with this user"); 2878 } 2879 return userInfo.creationTime; 2880 } 2881 2882 /** 2883 * Caches the list of user ids in an array, adjusting the array size when necessary. 2884 */ 2885 private void updateUserIds() { 2886 int num = 0; 2887 synchronized (mUsersLock) { 2888 final int userSize = mUsers.size(); 2889 for (int i = 0; i < userSize; i++) { 2890 if (!mUsers.valueAt(i).info.partial) { 2891 num++; 2892 } 2893 } 2894 final int[] newUsers = new int[num]; 2895 int n = 0; 2896 for (int i = 0; i < userSize; i++) { 2897 if (!mUsers.valueAt(i).info.partial) { 2898 newUsers[n++] = mUsers.keyAt(i); 2899 } 2900 } 2901 mUserIds = newUsers; 2902 } 2903 } 2904 2905 /** 2906 * Called right before a user is started. This gives us a chance to prepare 2907 * app storage and apply any user restrictions. 2908 */ 2909 public void onBeforeStartUser(int userId) { 2910 final int userSerial = getUserSerialNumber(userId); 2911 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 2912 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE); 2913 2914 if (userId != UserHandle.USER_SYSTEM) { 2915 synchronized (mRestrictionsLock) { 2916 applyUserRestrictionsLR(userId); 2917 } 2918 } 2919 2920 maybeInitializeDemoMode(userId); 2921 } 2922 2923 /** 2924 * Called right before a user is unlocked. This gives us a chance to prepare 2925 * app storage. 2926 */ 2927 public void onBeforeUnlockUser(@UserIdInt int userId) { 2928 final int userSerial = getUserSerialNumber(userId); 2929 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 2930 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE); 2931 } 2932 2933 /** 2934 * Make a note of the last started time of a user and do some cleanup. 2935 * This is called with ActivityManagerService lock held. 2936 * @param userId the user that was just foregrounded 2937 */ 2938 public void onUserLoggedIn(@UserIdInt int userId) { 2939 UserData userData = getUserDataNoChecks(userId); 2940 if (userData == null || userData.info.partial) { 2941 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 2942 return; 2943 } 2944 2945 final long now = System.currentTimeMillis(); 2946 if (now > EPOCH_PLUS_30_YEARS) { 2947 userData.info.lastLoggedInTime = now; 2948 } 2949 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 2950 scheduleWriteUser(userData); 2951 } 2952 2953 private void maybeInitializeDemoMode(int userId) { 2954 if (UserManager.isDeviceInDemoMode(mContext) && userId != UserHandle.USER_SYSTEM) { 2955 String demoLauncher = 2956 mContext.getResources().getString( 2957 com.android.internal.R.string.config_demoModeLauncherComponent); 2958 if (!TextUtils.isEmpty(demoLauncher)) { 2959 ComponentName componentToEnable = ComponentName.unflattenFromString(demoLauncher); 2960 String demoLauncherPkg = componentToEnable.getPackageName(); 2961 try { 2962 final IPackageManager iPm = AppGlobals.getPackageManager(); 2963 iPm.setComponentEnabledSetting(componentToEnable, 2964 PackageManager.COMPONENT_ENABLED_STATE_ENABLED, /* flags= */ 0, 2965 /* userId= */ userId); 2966 iPm.setApplicationEnabledSetting(demoLauncherPkg, 2967 PackageManager.COMPONENT_ENABLED_STATE_ENABLED, /* flags= */ 0, 2968 /* userId= */ userId, null); 2969 } catch (RemoteException re) { 2970 // Internal, shouldn't happen 2971 } 2972 } 2973 } 2974 } 2975 2976 /** 2977 * Returns the next available user id, filling in any holes in the ids. 2978 * TODO: May not be a good idea to recycle ids, in case it results in confusion 2979 * for data and battery stats collection, or unexpected cross-talk. 2980 */ 2981 private int getNextAvailableId() { 2982 synchronized (mUsersLock) { 2983 int i = MIN_USER_ID; 2984 while (i < MAX_USER_ID) { 2985 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 2986 return i; 2987 } 2988 i++; 2989 } 2990 } 2991 throw new IllegalStateException("No user id available!"); 2992 } 2993 2994 private String packageToRestrictionsFileName(String packageName) { 2995 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 2996 } 2997 2998 /** 2999 * Enforce that serial number stored in user directory inode matches the 3000 * given expected value. Gracefully sets the serial number if currently 3001 * undefined. 3002 * 3003 * @throws IOException when problem extracting serial number, or serial 3004 * number is mismatched. 3005 */ 3006 public static void enforceSerialNumber(File file, int serialNumber) throws IOException { 3007 if (StorageManager.isFileEncryptedEmulatedOnly()) { 3008 // When we're emulating FBE, the directory may have been chmod 3009 // 000'ed, meaning we can't read the serial number to enforce it; 3010 // instead of destroying the user, just log a warning. 3011 Slog.w(LOG_TAG, "Device is emulating FBE; assuming current serial number is valid"); 3012 return; 3013 } 3014 3015 final int foundSerial = getSerialNumber(file); 3016 Slog.v(LOG_TAG, "Found " + file + " with serial number " + foundSerial); 3017 3018 if (foundSerial == -1) { 3019 Slog.d(LOG_TAG, "Serial number missing on " + file + "; assuming current is valid"); 3020 try { 3021 setSerialNumber(file, serialNumber); 3022 } catch (IOException e) { 3023 Slog.w(LOG_TAG, "Failed to set serial number on " + file, e); 3024 } 3025 3026 } else if (foundSerial != serialNumber) { 3027 throw new IOException("Found serial number " + foundSerial 3028 + " doesn't match expected " + serialNumber); 3029 } 3030 } 3031 3032 /** 3033 * Set serial number stored in user directory inode. 3034 * 3035 * @throws IOException if serial number was already set 3036 */ 3037 private static void setSerialNumber(File file, int serialNumber) 3038 throws IOException { 3039 try { 3040 final byte[] buf = Integer.toString(serialNumber).getBytes(StandardCharsets.UTF_8); 3041 Os.setxattr(file.getAbsolutePath(), XATTR_SERIAL, buf, OsConstants.XATTR_CREATE); 3042 } catch (ErrnoException e) { 3043 throw e.rethrowAsIOException(); 3044 } 3045 } 3046 3047 /** 3048 * Return serial number stored in user directory inode. 3049 * 3050 * @return parsed serial number, or -1 if not set 3051 */ 3052 private static int getSerialNumber(File file) throws IOException { 3053 try { 3054 final byte[] buf = new byte[256]; 3055 final int len = Os.getxattr(file.getAbsolutePath(), XATTR_SERIAL, buf); 3056 final String serial = new String(buf, 0, len); 3057 try { 3058 return Integer.parseInt(serial); 3059 } catch (NumberFormatException e) { 3060 throw new IOException("Bad serial number: " + serial); 3061 } 3062 } catch (ErrnoException e) { 3063 if (e.errno == OsConstants.ENODATA) { 3064 return -1; 3065 } else { 3066 throw e.rethrowAsIOException(); 3067 } 3068 } 3069 } 3070 3071 @Override 3072 public void setSeedAccountData(int userId, String accountName, String accountType, 3073 PersistableBundle accountOptions, boolean persist) { 3074 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 3075 synchronized (mPackagesLock) { 3076 final UserData userData; 3077 synchronized (mUsersLock) { 3078 userData = getUserDataLU(userId); 3079 if (userData == null) { 3080 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 3081 return; 3082 } 3083 userData.seedAccountName = accountName; 3084 userData.seedAccountType = accountType; 3085 userData.seedAccountOptions = accountOptions; 3086 userData.persistSeedData = persist; 3087 } 3088 if (persist) { 3089 writeUserLP(userData); 3090 } 3091 } 3092 } 3093 3094 @Override 3095 public String getSeedAccountName() throws RemoteException { 3096 checkManageUsersPermission("Cannot get seed account information"); 3097 synchronized (mUsersLock) { 3098 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3099 return userData.seedAccountName; 3100 } 3101 } 3102 3103 @Override 3104 public String getSeedAccountType() throws RemoteException { 3105 checkManageUsersPermission("Cannot get seed account information"); 3106 synchronized (mUsersLock) { 3107 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3108 return userData.seedAccountType; 3109 } 3110 } 3111 3112 @Override 3113 public PersistableBundle getSeedAccountOptions() throws RemoteException { 3114 checkManageUsersPermission("Cannot get seed account information"); 3115 synchronized (mUsersLock) { 3116 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3117 return userData.seedAccountOptions; 3118 } 3119 } 3120 3121 @Override 3122 public void clearSeedAccountData() throws RemoteException { 3123 checkManageUsersPermission("Cannot clear seed account information"); 3124 synchronized (mPackagesLock) { 3125 UserData userData; 3126 synchronized (mUsersLock) { 3127 userData = getUserDataLU(UserHandle.getCallingUserId()); 3128 if (userData == null) return; 3129 userData.clearSeedAccountData(); 3130 } 3131 writeUserLP(userData); 3132 } 3133 } 3134 3135 @Override 3136 public boolean someUserHasSeedAccount(String accountName, String accountType) 3137 throws RemoteException { 3138 checkManageUsersPermission("Cannot check seed account information"); 3139 synchronized (mUsersLock) { 3140 final int userSize = mUsers.size(); 3141 for (int i = 0; i < userSize; i++) { 3142 final UserData data = mUsers.valueAt(i); 3143 if (data.info.isInitialized()) continue; 3144 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 3145 continue; 3146 } 3147 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 3148 continue; 3149 } 3150 return true; 3151 } 3152 } 3153 return false; 3154 } 3155 3156 @Override 3157 public void onShellCommand(FileDescriptor in, FileDescriptor out, 3158 FileDescriptor err, String[] args, ResultReceiver resultReceiver) { 3159 (new Shell()).exec(this, in, out, err, args, resultReceiver); 3160 } 3161 3162 int onShellCommand(Shell shell, String cmd) { 3163 if (cmd == null) { 3164 return shell.handleDefaultCommands(cmd); 3165 } 3166 3167 final PrintWriter pw = shell.getOutPrintWriter(); 3168 try { 3169 switch(cmd) { 3170 case "list": 3171 return runList(pw); 3172 } 3173 } catch (RemoteException e) { 3174 pw.println("Remote exception: " + e); 3175 } 3176 return -1; 3177 } 3178 3179 private int runList(PrintWriter pw) throws RemoteException { 3180 final IActivityManager am = ActivityManagerNative.getDefault(); 3181 final List<UserInfo> users = getUsers(false); 3182 if (users == null) { 3183 pw.println("Error: couldn't get users"); 3184 return 1; 3185 } else { 3186 pw.println("Users:"); 3187 for (int i = 0; i < users.size(); i++) { 3188 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 3189 pw.println("\t" + users.get(i).toString() + running); 3190 } 3191 return 0; 3192 } 3193 } 3194 3195 @Override 3196 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3197 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 3198 != PackageManager.PERMISSION_GRANTED) { 3199 pw.println("Permission Denial: can't dump UserManager from from pid=" 3200 + Binder.getCallingPid() 3201 + ", uid=" + Binder.getCallingUid() 3202 + " without permission " 3203 + android.Manifest.permission.DUMP); 3204 return; 3205 } 3206 3207 long now = System.currentTimeMillis(); 3208 StringBuilder sb = new StringBuilder(); 3209 synchronized (mPackagesLock) { 3210 synchronized (mUsersLock) { 3211 pw.println("Users:"); 3212 for (int i = 0; i < mUsers.size(); i++) { 3213 UserData userData = mUsers.valueAt(i); 3214 if (userData == null) { 3215 continue; 3216 } 3217 UserInfo userInfo = userData.info; 3218 final int userId = userInfo.id; 3219 pw.print(" "); pw.print(userInfo); 3220 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 3221 if (mRemovingUserIds.get(userId)) { 3222 pw.print(" <removing> "); 3223 } 3224 if (userInfo.partial) { 3225 pw.print(" <partial>"); 3226 } 3227 pw.println(); 3228 pw.print(" Created: "); 3229 if (userInfo.creationTime == 0) { 3230 pw.println("<unknown>"); 3231 } else { 3232 sb.setLength(0); 3233 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 3234 sb.append(" ago"); 3235 pw.println(sb); 3236 } 3237 pw.print(" Last logged in: "); 3238 if (userInfo.lastLoggedInTime == 0) { 3239 pw.println("<unknown>"); 3240 } else { 3241 sb.setLength(0); 3242 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 3243 sb.append(" ago"); 3244 pw.println(sb); 3245 } 3246 pw.print(" Last logged in fingerprint: "); 3247 pw.println(userInfo.lastLoggedInFingerprint); 3248 pw.print(" Has profile owner: "); 3249 pw.println(mIsUserManaged.get(userId)); 3250 pw.println(" Restrictions:"); 3251 synchronized (mRestrictionsLock) { 3252 UserRestrictionsUtils.dumpRestrictions( 3253 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 3254 pw.println(" Device policy local restrictions:"); 3255 UserRestrictionsUtils.dumpRestrictions( 3256 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 3257 pw.println(" Effective restrictions:"); 3258 UserRestrictionsUtils.dumpRestrictions( 3259 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 3260 } 3261 3262 if (userData.account != null) { 3263 pw.print(" Account name: " + userData.account); 3264 pw.println(); 3265 } 3266 3267 if (userData.seedAccountName != null) { 3268 pw.print(" Seed account name: " + userData.seedAccountName); 3269 pw.println(); 3270 if (userData.seedAccountType != null) { 3271 pw.print(" account type: " + userData.seedAccountType); 3272 pw.println(); 3273 } 3274 if (userData.seedAccountOptions != null) { 3275 pw.print(" account options exist"); 3276 pw.println(); 3277 } 3278 } 3279 } 3280 } 3281 pw.println(); 3282 pw.println(" Device policy global restrictions:"); 3283 synchronized (mRestrictionsLock) { 3284 UserRestrictionsUtils 3285 .dumpRestrictions(pw, " ", mDevicePolicyGlobalUserRestrictions); 3286 } 3287 pw.println(); 3288 pw.println(" Global restrictions owner id:" + mGlobalRestrictionOwnerUserId); 3289 pw.println(); 3290 pw.println(" Guest restrictions:"); 3291 synchronized (mGuestRestrictions) { 3292 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 3293 } 3294 synchronized (mUsersLock) { 3295 pw.println(); 3296 pw.println(" Device managed: " + mIsDeviceManaged); 3297 } 3298 synchronized (mUserStates) { 3299 pw.println(" Started users state: " + mUserStates); 3300 } 3301 // Dump some capabilities 3302 pw.println(); 3303 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 3304 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 3305 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 3306 com.android.internal.R.bool.config_guestUserEphemeral)); 3307 } 3308 } 3309 3310 final class MainHandler extends Handler { 3311 3312 @Override 3313 public void handleMessage(Message msg) { 3314 switch (msg.what) { 3315 case WRITE_USER_MSG: 3316 removeMessages(WRITE_USER_MSG, msg.obj); 3317 synchronized (mPackagesLock) { 3318 int userId = ((UserData) msg.obj).info.id; 3319 UserData userData = getUserDataNoChecks(userId); 3320 if (userData != null) { 3321 writeUserLP(userData); 3322 } 3323 } 3324 } 3325 } 3326 } 3327 3328 /** 3329 * @param userId 3330 * @return whether the user has been initialized yet 3331 */ 3332 boolean isInitialized(int userId) { 3333 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3334 } 3335 3336 private class LocalService extends UserManagerInternal { 3337 @Override 3338 public void setDevicePolicyUserRestrictions(int userId, @NonNull Bundle localRestrictions, 3339 @Nullable Bundle globalRestrictions) { 3340 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, localRestrictions, 3341 globalRestrictions); 3342 } 3343 3344 @Override 3345 public Bundle getBaseUserRestrictions(int userId) { 3346 synchronized (mRestrictionsLock) { 3347 return mBaseUserRestrictions.get(userId); 3348 } 3349 } 3350 3351 @Override 3352 public void setBaseUserRestrictionsByDpmsForMigration( 3353 int userId, Bundle baseRestrictions) { 3354 synchronized (mRestrictionsLock) { 3355 mBaseUserRestrictions.put(userId, new Bundle(baseRestrictions)); 3356 invalidateEffectiveUserRestrictionsLR(userId); 3357 } 3358 3359 final UserData userData = getUserDataNoChecks(userId); 3360 synchronized (mPackagesLock) { 3361 if (userData != null) { 3362 writeUserLP(userData); 3363 } else { 3364 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3365 } 3366 } 3367 } 3368 3369 @Override 3370 public boolean getUserRestriction(int userId, String key) { 3371 return getUserRestrictions(userId).getBoolean(key); 3372 } 3373 3374 @Override 3375 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3376 synchronized (mUserRestrictionsListeners) { 3377 mUserRestrictionsListeners.add(listener); 3378 } 3379 } 3380 3381 @Override 3382 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3383 synchronized (mUserRestrictionsListeners) { 3384 mUserRestrictionsListeners.remove(listener); 3385 } 3386 } 3387 3388 @Override 3389 public void setDeviceManaged(boolean isManaged) { 3390 synchronized (mUsersLock) { 3391 mIsDeviceManaged = isManaged; 3392 } 3393 } 3394 3395 @Override 3396 public void setUserManaged(int userId, boolean isManaged) { 3397 synchronized (mUsersLock) { 3398 mIsUserManaged.put(userId, isManaged); 3399 } 3400 } 3401 3402 @Override 3403 public void setUserIcon(int userId, Bitmap bitmap) { 3404 long ident = Binder.clearCallingIdentity(); 3405 try { 3406 synchronized (mPackagesLock) { 3407 UserData userData = getUserDataNoChecks(userId); 3408 if (userData == null || userData.info.partial) { 3409 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3410 return; 3411 } 3412 writeBitmapLP(userData.info, bitmap); 3413 writeUserLP(userData); 3414 } 3415 sendUserInfoChangedBroadcast(userId); 3416 } finally { 3417 Binder.restoreCallingIdentity(ident); 3418 } 3419 } 3420 3421 @Override 3422 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3423 synchronized (mUsersLock) { 3424 mForceEphemeralUsers = forceEphemeralUsers; 3425 } 3426 } 3427 3428 @Override 3429 public void removeAllUsers() { 3430 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3431 // Remove the non-system users straight away. 3432 removeNonSystemUsers(); 3433 } else { 3434 // Switch to the system user first and then remove the other users. 3435 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3436 @Override 3437 public void onReceive(Context context, Intent intent) { 3438 int userId = 3439 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3440 if (userId != UserHandle.USER_SYSTEM) { 3441 return; 3442 } 3443 mContext.unregisterReceiver(this); 3444 removeNonSystemUsers(); 3445 } 3446 }; 3447 IntentFilter userSwitchedFilter = new IntentFilter(); 3448 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3449 mContext.registerReceiver( 3450 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3451 3452 // Switch to the system user. 3453 ActivityManager am = 3454 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3455 am.switchUser(UserHandle.USER_SYSTEM); 3456 } 3457 } 3458 3459 @Override 3460 public void onEphemeralUserStop(int userId) { 3461 synchronized (mUsersLock) { 3462 UserInfo userInfo = getUserInfoLU(userId); 3463 if (userInfo != null && userInfo.isEphemeral()) { 3464 // Do not allow switching back to the ephemeral user again as the user is going 3465 // to be deleted. 3466 userInfo.flags |= UserInfo.FLAG_DISABLED; 3467 if (userInfo.isGuest()) { 3468 // Indicate that the guest will be deleted after it stops. 3469 userInfo.guestToRemove = true; 3470 } 3471 } 3472 } 3473 } 3474 3475 @Override 3476 public UserInfo createUserEvenWhenDisallowed(String name, int flags) { 3477 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL); 3478 // Keep this in sync with UserManager.createUser 3479 if (user != null && !user.isAdmin()) { 3480 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3481 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3482 } 3483 return user; 3484 } 3485 3486 @Override 3487 public boolean isUserRunning(int userId) { 3488 synchronized (mUserStates) { 3489 return mUserStates.get(userId, -1) >= 0; 3490 } 3491 } 3492 3493 @Override 3494 public void setUserState(int userId, int userState) { 3495 synchronized (mUserStates) { 3496 mUserStates.put(userId, userState); 3497 } 3498 } 3499 3500 @Override 3501 public void removeUserState(int userId) { 3502 synchronized (mUserStates) { 3503 mUserStates.delete(userId); 3504 } 3505 } 3506 3507 @Override 3508 public boolean isUserUnlockingOrUnlocked(int userId) { 3509 synchronized (mUserStates) { 3510 int state = mUserStates.get(userId, -1); 3511 return (state == UserState.STATE_RUNNING_UNLOCKING) 3512 || (state == UserState.STATE_RUNNING_UNLOCKED); 3513 } 3514 } 3515 3516 @Override 3517 public boolean isUserUnlocked(int userId) { 3518 synchronized (mUserStates) { 3519 int state = mUserStates.get(userId, -1); 3520 return state == UserState.STATE_RUNNING_UNLOCKED; 3521 } 3522 } 3523 } 3524 3525 /* Remove all the users except of the system one. */ 3526 private void removeNonSystemUsers() { 3527 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3528 synchronized (mUsersLock) { 3529 final int userSize = mUsers.size(); 3530 for (int i = 0; i < userSize; i++) { 3531 UserInfo ui = mUsers.valueAt(i).info; 3532 if (ui.id != UserHandle.USER_SYSTEM) { 3533 usersToRemove.add(ui); 3534 } 3535 } 3536 } 3537 for (UserInfo ui: usersToRemove) { 3538 removeUser(ui.id); 3539 } 3540 } 3541 3542 private class Shell extends ShellCommand { 3543 @Override 3544 public int onCommand(String cmd) { 3545 return onShellCommand(this, cmd); 3546 } 3547 3548 @Override 3549 public void onHelp() { 3550 final PrintWriter pw = getOutPrintWriter(); 3551 pw.println("User manager (user) commands:"); 3552 pw.println(" help"); 3553 pw.println(" Print this help text."); 3554 pw.println(""); 3555 pw.println(" list"); 3556 pw.println(" Prints all users on the system."); 3557 } 3558 } 3559 3560 private static void debug(String message) { 3561 Log.d(LOG_TAG, message + 3562 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3563 } 3564} 3565