UserManagerService.java revision b6a9f94d6718894fdd382708a9d87696f055e71e
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.pm; 18 19import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS; 20import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; 21 22import android.Manifest; 23import android.annotation.NonNull; 24import android.annotation.Nullable; 25import android.annotation.UserIdInt; 26import android.app.Activity; 27import android.app.ActivityManager; 28import android.app.ActivityManagerInternal; 29import android.app.ActivityManagerNative; 30import android.app.IActivityManager; 31import android.app.IStopUserCallback; 32import android.app.KeyguardManager; 33import android.app.PendingIntent; 34import android.content.BroadcastReceiver; 35import android.content.Context; 36import android.content.Intent; 37import android.content.IntentFilter; 38import android.content.IntentSender; 39import android.content.pm.PackageManager; 40import android.content.pm.PackageManager.NameNotFoundException; 41import android.content.pm.UserInfo; 42import android.content.res.Resources; 43import android.graphics.Bitmap; 44import android.os.Binder; 45import android.os.Build; 46import android.os.Bundle; 47import android.os.Debug; 48import android.os.Environment; 49import android.os.FileUtils; 50import android.os.Handler; 51import android.os.IBinder; 52import android.os.IProgressListener; 53import android.os.IUserManager; 54import android.os.Message; 55import android.os.ParcelFileDescriptor; 56import android.os.Parcelable; 57import android.os.PersistableBundle; 58import android.os.Process; 59import android.os.RemoteException; 60import android.os.ResultReceiver; 61import android.os.SELinux; 62import android.os.ServiceManager; 63import android.os.ShellCallback; 64import android.os.ShellCommand; 65import android.os.SystemProperties; 66import android.os.UserHandle; 67import android.os.UserManager; 68import android.os.UserManager.EnforcingUser; 69import android.os.UserManagerInternal; 70import android.os.UserManagerInternal.UserRestrictionsListener; 71import android.os.storage.StorageManager; 72import android.security.GateKeeper; 73import android.service.gatekeeper.IGateKeeperService; 74import android.util.AtomicFile; 75import android.util.IntArray; 76import android.util.Log; 77import android.util.Slog; 78import android.util.SparseArray; 79import android.util.SparseBooleanArray; 80import android.util.SparseIntArray; 81import android.util.TimeUtils; 82import android.util.Xml; 83 84import com.android.internal.annotations.GuardedBy; 85import com.android.internal.annotations.VisibleForTesting; 86import com.android.internal.app.IAppOpsService; 87import com.android.internal.logging.MetricsLogger; 88import com.android.internal.util.DumpUtils; 89import com.android.internal.util.FastXmlSerializer; 90import com.android.internal.util.Preconditions; 91import com.android.internal.util.XmlUtils; 92import com.android.internal.widget.LockPatternUtils; 93import com.android.server.LocalServices; 94import com.android.server.LockGuard; 95import com.android.server.SystemService; 96import com.android.server.am.UserState; 97import com.android.server.storage.DeviceStorageMonitorInternal; 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.InputStream; 114import java.io.OutputStream; 115import java.io.PrintWriter; 116import java.nio.charset.StandardCharsets; 117import java.util.ArrayList; 118import java.util.Collections; 119import java.util.LinkedList; 120import java.util.List; 121 122/** 123 * Service for {@link UserManager}. 124 * 125 * Method naming convention: 126 * <ul> 127 * <li> Methods suffixed with "LAr" should be called within the {@link #mAppRestrictionsLock} lock. 128 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 129 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 130 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 131 * </ul> 132 */ 133public class UserManagerService extends IUserManager.Stub { 134 135 private static final String LOG_TAG = "UserManagerService"; 136 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 137 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 138 // Can be used for manual testing of id recycling 139 private static final boolean RELEASE_DELETED_USER_ID = false; // DO NOT SUBMIT WITH TRUE 140 141 private static final String TAG_NAME = "name"; 142 private static final String TAG_ACCOUNT = "account"; 143 private static final String ATTR_FLAGS = "flags"; 144 private static final String ATTR_ICON_PATH = "icon"; 145 private static final String ATTR_ID = "id"; 146 private static final String ATTR_CREATION_TIME = "created"; 147 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 148 private static final String ATTR_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint"; 149 private static final String ATTR_SERIAL_NO = "serialNumber"; 150 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 151 private static final String ATTR_PARTIAL = "partial"; 152 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 153 private static final String ATTR_USER_VERSION = "version"; 154 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 155 private static final String ATTR_PROFILE_BADGE = "profileBadge"; 156 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 157 private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; 158 private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; 159 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 160 private static final String TAG_USERS = "users"; 161 private static final String TAG_USER = "user"; 162 private static final String TAG_RESTRICTIONS = "restrictions"; 163 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 164 private static final String TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS = 165 "device_policy_global_restrictions"; 166 /** Legacy name for device owner id tag. */ 167 private static final String TAG_GLOBAL_RESTRICTION_OWNER_ID = "globalRestrictionOwnerUserId"; 168 private static final String TAG_DEVICE_OWNER_USER_ID = "deviceOwnerUserId"; 169 private static final String TAG_ENTRY = "entry"; 170 private static final String TAG_VALUE = "value"; 171 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 172 private static final String ATTR_KEY = "key"; 173 private static final String ATTR_VALUE_TYPE = "type"; 174 private static final String ATTR_MULTIPLE = "m"; 175 176 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 177 private static final String ATTR_TYPE_STRING = "s"; 178 private static final String ATTR_TYPE_BOOLEAN = "b"; 179 private static final String ATTR_TYPE_INTEGER = "i"; 180 private static final String ATTR_TYPE_BUNDLE = "B"; 181 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 182 183 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 184 private static final String USER_LIST_FILENAME = "userlist.xml"; 185 private static final String USER_PHOTO_FILENAME = "photo.png"; 186 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 187 188 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 189 private static final String XML_SUFFIX = ".xml"; 190 191 private static final int ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION = 192 UserInfo.FLAG_MANAGED_PROFILE 193 | UserInfo.FLAG_EPHEMERAL 194 | UserInfo.FLAG_RESTRICTED 195 | UserInfo.FLAG_GUEST 196 | UserInfo.FLAG_DEMO; 197 198 @VisibleForTesting 199 static final int MIN_USER_ID = 10; 200 // We need to keep process uid within Integer.MAX_VALUE. 201 @VisibleForTesting 202 static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 203 204 // Max size of the queue of recently removed users 205 @VisibleForTesting 206 static final int MAX_RECENTLY_REMOVED_IDS_SIZE = 100; 207 208 private static final int USER_VERSION = 7; 209 210 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 211 212 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 213 // without first making sure that the rest of the framework is prepared for it. 214 @VisibleForTesting 215 static final int MAX_MANAGED_PROFILES = 1; 216 217 static final int WRITE_USER_MSG = 1; 218 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 219 220 // Tron counters 221 private static final String TRON_GUEST_CREATED = "users_guest_created"; 222 private static final String TRON_USER_CREATED = "users_user_created"; 223 private static final String TRON_DEMO_CREATED = "users_demo_created"; 224 225 private final Context mContext; 226 private final PackageManagerService mPm; 227 private final Object mPackagesLock; 228 private final UserDataPreparer mUserDataPreparer; 229 // Short-term lock for internal state, when interaction/sync with PM is not required 230 private final Object mUsersLock = LockGuard.installNewLock(LockGuard.INDEX_USER); 231 private final Object mRestrictionsLock = new Object(); 232 // Used for serializing access to app restriction files 233 private final Object mAppRestrictionsLock = new Object(); 234 235 private final Handler mHandler; 236 237 private final File mUsersDir; 238 private final File mUserListFile; 239 240 private static final IBinder mUserRestriconToken = new Binder(); 241 242 /** 243 * User-related information that is used for persisting to flash. Only UserInfo is 244 * directly exposed to other system apps. 245 */ 246 @VisibleForTesting 247 static class UserData { 248 // Basic user information and properties 249 UserInfo info; 250 // Account name used when there is a strong association between a user and an account 251 String account; 252 // Account information for seeding into a newly created user. This could also be 253 // used for login validation for an existing user, for updating their credentials. 254 // In the latter case, data may not need to be persisted as it is only valid for the 255 // current login session. 256 String seedAccountName; 257 String seedAccountType; 258 PersistableBundle seedAccountOptions; 259 // Whether to perist the seed account information to be available after a boot 260 boolean persistSeedData; 261 262 void clearSeedAccountData() { 263 seedAccountName = null; 264 seedAccountType = null; 265 seedAccountOptions = null; 266 persistSeedData = false; 267 } 268 } 269 270 @GuardedBy("mUsersLock") 271 private final SparseArray<UserData> mUsers = new SparseArray<>(); 272 273 /** 274 * User restrictions set via UserManager. This doesn't include restrictions set by 275 * device owner / profile owners. Only non-empty restriction bundles are stored. 276 * 277 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 278 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 279 * maybe shared between {@link #mBaseUserRestrictions} and 280 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 281 * (Otherwise we won't be able to detect what restrictions have changed in 282 * {@link #updateUserRestrictionsInternalLR}. 283 */ 284 @GuardedBy("mRestrictionsLock") 285 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 286 287 /** 288 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 289 * with device / profile owner restrictions. We'll initialize it lazily; use 290 * {@link #getEffectiveUserRestrictions} to access it. 291 * 292 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 293 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 294 * maybe shared between {@link #mBaseUserRestrictions} and 295 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 296 * (Otherwise we won't be able to detect what restrictions have changed in 297 * {@link #updateUserRestrictionsInternalLR}. 298 */ 299 @GuardedBy("mRestrictionsLock") 300 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 301 302 /** 303 * User restrictions that have already been applied in 304 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 305 * that have changed since the last 306 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 307 */ 308 @GuardedBy("mRestrictionsLock") 309 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 310 311 /** 312 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 313 * that should be applied to all users, including guests. Only non-empty restriction bundles are 314 * stored. 315 */ 316 @GuardedBy("mRestrictionsLock") 317 private final SparseArray<Bundle> mDevicePolicyGlobalUserRestrictions = new SparseArray<>(); 318 319 /** 320 * Id of the user that set global restrictions. 321 */ 322 @GuardedBy("mRestrictionsLock") 323 private int mDeviceOwnerUserId = UserHandle.USER_NULL; 324 325 /** 326 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 327 * for each user. Only non-empty restriction bundles are stored. 328 */ 329 @GuardedBy("mRestrictionsLock") 330 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 331 332 @GuardedBy("mGuestRestrictions") 333 private final Bundle mGuestRestrictions = new Bundle(); 334 335 /** 336 * Set of user IDs being actively removed. Removed IDs linger in this set 337 * for several seconds to work around a VFS caching issue. 338 * Use {@link #addRemovingUserIdLocked(int)} to add elements to this array 339 */ 340 @GuardedBy("mUsersLock") 341 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 342 343 /** 344 * Queue of recently removed userIds. Used for recycling of userIds 345 */ 346 @GuardedBy("mUsersLock") 347 private final LinkedList<Integer> mRecentlyRemovedIds = new LinkedList<>(); 348 349 @GuardedBy("mUsersLock") 350 private int[] mUserIds; 351 @GuardedBy("mPackagesLock") 352 private int mNextSerialNumber; 353 private int mUserVersion = 0; 354 355 private IAppOpsService mAppOpsService; 356 357 private final LocalService mLocalService; 358 359 @GuardedBy("mUsersLock") 360 private boolean mIsDeviceManaged; 361 362 @GuardedBy("mUsersLock") 363 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 364 365 @GuardedBy("mUserRestrictionsListeners") 366 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 367 new ArrayList<>(); 368 369 private final LockPatternUtils mLockPatternUtils; 370 371 private final String ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK = 372 "com.android.server.pm.DISABLE_QUIET_MODE_AFTER_UNLOCK"; 373 374 private final BroadcastReceiver mDisableQuietModeCallback = new BroadcastReceiver() { 375 @Override 376 public void onReceive(Context context, Intent intent) { 377 if (!ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK.equals(intent.getAction())) { 378 return; 379 } 380 final IntentSender target = intent.getParcelableExtra(Intent.EXTRA_INTENT); 381 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_ID, UserHandle.USER_NULL); 382 setQuietModeEnabled(userHandle, false, target); 383 } 384 }; 385 386 /** 387 * Start an {@link IntentSender} when user is unlocked after disabling quiet mode. 388 * 389 * @see {@link #trySetQuietModeDisabled(int, IntentSender)} 390 */ 391 private class DisableQuietModeUserUnlockedCallback extends IProgressListener.Stub { 392 private final IntentSender mTarget; 393 394 public DisableQuietModeUserUnlockedCallback(IntentSender target) { 395 Preconditions.checkNotNull(target); 396 mTarget = target; 397 } 398 399 @Override 400 public void onStarted(int id, Bundle extras) {} 401 402 @Override 403 public void onProgress(int id, int progress, Bundle extras) {} 404 405 @Override 406 public void onFinished(int id, Bundle extras) { 407 try { 408 mContext.startIntentSender(mTarget, null, 0, 0, 0); 409 } catch (IntentSender.SendIntentException e) { 410 Slog.e(LOG_TAG, "Failed to start the target in the callback", e); 411 } 412 } 413 } 414 415 /** 416 * Whether all users should be created ephemeral. 417 */ 418 @GuardedBy("mUsersLock") 419 private boolean mForceEphemeralUsers; 420 421 @GuardedBy("mUserStates") 422 private final SparseIntArray mUserStates = new SparseIntArray(); 423 424 private static UserManagerService sInstance; 425 426 public static UserManagerService getInstance() { 427 synchronized (UserManagerService.class) { 428 return sInstance; 429 } 430 } 431 432 public static class LifeCycle extends SystemService { 433 434 private UserManagerService mUms; 435 436 /** 437 * @param context 438 */ 439 public LifeCycle(Context context) { 440 super(context); 441 } 442 443 @Override 444 public void onStart() { 445 mUms = UserManagerService.getInstance(); 446 publishBinderService(Context.USER_SERVICE, mUms); 447 } 448 449 @Override 450 public void onBootPhase(int phase) { 451 if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) { 452 mUms.cleanupPartialUsers(); 453 } 454 } 455 } 456 457 // TODO b/28848102 Add support for test dependencies injection 458 @VisibleForTesting 459 UserManagerService(Context context) { 460 this(context, null, null, new Object(), context.getCacheDir()); 461 } 462 463 /** 464 * Called by package manager to create the service. This is closely 465 * associated with the package manager, and the given lock is the 466 * package manager's own lock. 467 */ 468 UserManagerService(Context context, PackageManagerService pm, UserDataPreparer userDataPreparer, 469 Object packagesLock) { 470 this(context, pm, userDataPreparer, packagesLock, Environment.getDataDirectory()); 471 } 472 473 private UserManagerService(Context context, PackageManagerService pm, 474 UserDataPreparer userDataPreparer, Object packagesLock, File dataDir) { 475 mContext = context; 476 mPm = pm; 477 mPackagesLock = packagesLock; 478 mHandler = new MainHandler(); 479 mUserDataPreparer = userDataPreparer; 480 synchronized (mPackagesLock) { 481 mUsersDir = new File(dataDir, USER_INFO_DIR); 482 mUsersDir.mkdirs(); 483 // Make zeroth user directory, for services to migrate their files to that location 484 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 485 userZeroDir.mkdirs(); 486 FileUtils.setPermissions(mUsersDir.toString(), 487 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 488 -1, -1); 489 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 490 initDefaultGuestRestrictions(); 491 readUserListLP(); 492 sInstance = this; 493 } 494 mLocalService = new LocalService(); 495 LocalServices.addService(UserManagerInternal.class, mLocalService); 496 mLockPatternUtils = new LockPatternUtils(mContext); 497 mUserStates.put(UserHandle.USER_SYSTEM, UserState.STATE_BOOTING); 498 } 499 500 void systemReady() { 501 mAppOpsService = IAppOpsService.Stub.asInterface( 502 ServiceManager.getService(Context.APP_OPS_SERVICE)); 503 504 synchronized (mRestrictionsLock) { 505 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 506 } 507 508 UserInfo currentGuestUser = findCurrentGuestUser(); 509 if (currentGuestUser != null && !hasUserRestriction( 510 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 511 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 512 // to it, in case this guest was created in a previous version where this 513 // user restriction was not a default guest restriction. 514 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 515 } 516 517 mContext.registerReceiver(mDisableQuietModeCallback, 518 new IntentFilter(ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK), 519 null, mHandler); 520 } 521 522 void cleanupPartialUsers() { 523 // Prune out any partially created, partially removed and ephemeral users. 524 ArrayList<UserInfo> partials = new ArrayList<>(); 525 synchronized (mUsersLock) { 526 final int userSize = mUsers.size(); 527 for (int i = 0; i < userSize; i++) { 528 UserInfo ui = mUsers.valueAt(i).info; 529 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 530 partials.add(ui); 531 addRemovingUserIdLocked(ui.id); 532 ui.partial = true; 533 } 534 } 535 } 536 final int partialsSize = partials.size(); 537 for (int i = 0; i < partialsSize; i++) { 538 UserInfo ui = partials.get(i); 539 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 540 + " (name=" + ui.name + ")"); 541 removeUserState(ui.id); 542 } 543 } 544 545 @Override 546 public String getUserAccount(int userId) { 547 checkManageUserAndAcrossUsersFullPermission("get user account"); 548 synchronized (mUsersLock) { 549 return mUsers.get(userId).account; 550 } 551 } 552 553 @Override 554 public void setUserAccount(int userId, String accountName) { 555 checkManageUserAndAcrossUsersFullPermission("set user account"); 556 UserData userToUpdate = null; 557 synchronized (mPackagesLock) { 558 synchronized (mUsersLock) { 559 final UserData userData = mUsers.get(userId); 560 if (userData == null) { 561 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 562 return; 563 } 564 String currentAccount = userData.account; 565 if (!Objects.equal(currentAccount, accountName)) { 566 userData.account = accountName; 567 userToUpdate = userData; 568 } 569 } 570 571 if (userToUpdate != null) { 572 writeUserLP(userToUpdate); 573 } 574 } 575 } 576 577 @Override 578 public UserInfo getPrimaryUser() { 579 checkManageUsersPermission("query users"); 580 synchronized (mUsersLock) { 581 final int userSize = mUsers.size(); 582 for (int i = 0; i < userSize; i++) { 583 UserInfo ui = mUsers.valueAt(i).info; 584 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 585 return ui; 586 } 587 } 588 } 589 return null; 590 } 591 592 @Override 593 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 594 checkManageOrCreateUsersPermission("query users"); 595 synchronized (mUsersLock) { 596 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 597 final int userSize = mUsers.size(); 598 for (int i = 0; i < userSize; i++) { 599 UserInfo ui = mUsers.valueAt(i).info; 600 if (ui.partial) { 601 continue; 602 } 603 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 604 users.add(userWithName(ui)); 605 } 606 } 607 return users; 608 } 609 } 610 611 @Override 612 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 613 boolean returnFullInfo = true; 614 if (userId != UserHandle.getCallingUserId()) { 615 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 616 } else { 617 returnFullInfo = hasManageUsersPermission(); 618 } 619 final long ident = Binder.clearCallingIdentity(); 620 try { 621 synchronized (mUsersLock) { 622 return getProfilesLU(userId, enabledOnly, returnFullInfo); 623 } 624 } finally { 625 Binder.restoreCallingIdentity(ident); 626 } 627 } 628 629 @Override 630 public int[] getProfileIds(int userId, boolean enabledOnly) { 631 if (userId != UserHandle.getCallingUserId()) { 632 checkManageOrCreateUsersPermission("getting profiles related to user " + userId); 633 } 634 final long ident = Binder.clearCallingIdentity(); 635 try { 636 synchronized (mUsersLock) { 637 return getProfileIdsLU(userId, enabledOnly).toArray(); 638 } 639 } finally { 640 Binder.restoreCallingIdentity(ident); 641 } 642 } 643 644 /** Assume permissions already checked and caller's identity cleared */ 645 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 646 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 647 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 648 for (int i = 0; i < profileIds.size(); i++) { 649 int profileId = profileIds.get(i); 650 UserInfo userInfo = mUsers.get(profileId).info; 651 // If full info is not required - clear PII data to prevent 3P apps from reading it 652 if (!fullInfo) { 653 userInfo = new UserInfo(userInfo); 654 userInfo.name = null; 655 userInfo.iconPath = null; 656 } else { 657 userInfo = userWithName(userInfo); 658 } 659 users.add(userInfo); 660 } 661 return users; 662 } 663 664 /** 665 * Assume permissions already checked and caller's identity cleared 666 */ 667 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 668 UserInfo user = getUserInfoLU(userId); 669 IntArray result = new IntArray(mUsers.size()); 670 if (user == null) { 671 // Probably a dying user 672 return result; 673 } 674 final int userSize = mUsers.size(); 675 for (int i = 0; i < userSize; i++) { 676 UserInfo profile = mUsers.valueAt(i).info; 677 if (!isProfileOf(user, profile)) { 678 continue; 679 } 680 if (enabledOnly && !profile.isEnabled()) { 681 continue; 682 } 683 if (mRemovingUserIds.get(profile.id)) { 684 continue; 685 } 686 if (profile.partial) { 687 continue; 688 } 689 result.add(profile.id); 690 } 691 return result; 692 } 693 694 @Override 695 public int getCredentialOwnerProfile(int userHandle) { 696 checkManageUsersPermission("get the credential owner"); 697 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 698 synchronized (mUsersLock) { 699 UserInfo profileParent = getProfileParentLU(userHandle); 700 if (profileParent != null) { 701 return profileParent.id; 702 } 703 } 704 } 705 706 return userHandle; 707 } 708 709 @Override 710 public boolean isSameProfileGroup(int userId, int otherUserId) { 711 if (userId == otherUserId) return true; 712 checkManageUsersPermission("check if in the same profile group"); 713 return isSameProfileGroupNoChecks(userId, otherUserId); 714 } 715 716 private boolean isSameProfileGroupNoChecks(int userId, int otherUserId) { 717 synchronized (mUsersLock) { 718 UserInfo userInfo = getUserInfoLU(userId); 719 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 720 return false; 721 } 722 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 723 if (otherUserInfo == null 724 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 725 return false; 726 } 727 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 728 } 729 } 730 731 @Override 732 public UserInfo getProfileParent(int userHandle) { 733 checkManageUsersPermission("get the profile parent"); 734 synchronized (mUsersLock) { 735 return getProfileParentLU(userHandle); 736 } 737 } 738 739 @Override 740 public int getProfileParentId(int userHandle) { 741 checkManageUsersPermission("get the profile parent"); 742 synchronized (mUsersLock) { 743 UserInfo profileParent = getProfileParentLU(userHandle); 744 if (profileParent == null) { 745 return userHandle; 746 } 747 748 return profileParent.id; 749 } 750 } 751 752 private UserInfo getProfileParentLU(int userHandle) { 753 UserInfo profile = getUserInfoLU(userHandle); 754 if (profile == null) { 755 return null; 756 } 757 int parentUserId = profile.profileGroupId; 758 if (parentUserId == userHandle || parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 759 return null; 760 } else { 761 return getUserInfoLU(parentUserId); 762 } 763 } 764 765 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 766 return user.id == profile.id || 767 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 768 && user.profileGroupId == profile.profileGroupId); 769 } 770 771 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 772 UserHandle parentHandle, boolean inQuietMode) { 773 Intent intent = new Intent(); 774 if (inQuietMode) { 775 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 776 } else { 777 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 778 } 779 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 780 intent.putExtra(Intent.EXTRA_USER, profileHandle); 781 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 782 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 783 mContext.sendBroadcastAsUser(intent, parentHandle); 784 } 785 786 @Override 787 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode, IntentSender target) { 788 checkManageUsersPermission("silence profile"); 789 boolean changed = false; 790 UserInfo profile, parent; 791 synchronized (mPackagesLock) { 792 synchronized (mUsersLock) { 793 profile = getUserInfoLU(userHandle); 794 parent = getProfileParentLU(userHandle); 795 796 } 797 if (profile == null || !profile.isManagedProfile()) { 798 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 799 } 800 if (profile.isQuietModeEnabled() != enableQuietMode) { 801 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 802 writeUserLP(getUserDataLU(profile.id)); 803 changed = true; 804 } 805 } 806 if (changed) { 807 long identity = Binder.clearCallingIdentity(); 808 try { 809 if (enableQuietMode) { 810 ActivityManager.getService().stopUser(userHandle, /* force */true, null); 811 LocalServices.getService(ActivityManagerInternal.class) 812 .killForegroundAppsForUser(userHandle); 813 } else { 814 IProgressListener callback = target != null 815 ? new DisableQuietModeUserUnlockedCallback(target) 816 : null; 817 ActivityManager.getService().startUserInBackgroundWithListener( 818 userHandle, callback); 819 } 820 } catch (RemoteException e) { 821 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 822 } finally { 823 Binder.restoreCallingIdentity(identity); 824 } 825 826 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 827 enableQuietMode); 828 } 829 } 830 831 @Override 832 public boolean isQuietModeEnabled(int userHandle) { 833 synchronized (mPackagesLock) { 834 UserInfo info; 835 synchronized (mUsersLock) { 836 info = getUserInfoLU(userHandle); 837 } 838 if (info == null || !info.isManagedProfile()) { 839 return false; 840 } 841 return info.isQuietModeEnabled(); 842 } 843 } 844 845 @Override 846 public boolean trySetQuietModeDisabled( 847 @UserIdInt int userHandle, @Nullable IntentSender target) { 848 checkManageUsersPermission("silence profile"); 849 if (StorageManager.isUserKeyUnlocked(userHandle) 850 || !mLockPatternUtils.isSecure(userHandle)) { 851 // if the user is already unlocked, no need to show a profile challenge 852 setQuietModeEnabled(userHandle, false, target); 853 return true; 854 } 855 856 long identity = Binder.clearCallingIdentity(); 857 try { 858 // otherwise, we show a profile challenge to trigger decryption of the user 859 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 860 Context.KEYGUARD_SERVICE); 861 // We should use userHandle not credentialOwnerUserId here, as even if it is unified 862 // lock, confirm screenlock page will know and show personal challenge, and unlock 863 // work profile when personal challenge is correct 864 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 865 userHandle); 866 if (unlockIntent == null) { 867 return false; 868 } 869 final Intent callBackIntent = new Intent( 870 ACTION_DISABLE_QUIET_MODE_AFTER_UNLOCK); 871 if (target != null) { 872 callBackIntent.putExtra(Intent.EXTRA_INTENT, target); 873 } 874 callBackIntent.putExtra(Intent.EXTRA_USER_ID, userHandle); 875 callBackIntent.setPackage(mContext.getPackageName()); 876 callBackIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 877 final PendingIntent pendingIntent = PendingIntent.getBroadcast( 878 mContext, 879 0, 880 callBackIntent, 881 PendingIntent.FLAG_CANCEL_CURRENT | 882 PendingIntent.FLAG_ONE_SHOT | 883 PendingIntent.FLAG_IMMUTABLE); 884 // After unlocking the challenge, it will disable quiet mode and run the original 885 // intentSender 886 unlockIntent.putExtra(Intent.EXTRA_INTENT, pendingIntent.getIntentSender()); 887 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 888 mContext.startActivity(unlockIntent); 889 } finally { 890 Binder.restoreCallingIdentity(identity); 891 } 892 return false; 893 } 894 895 @Override 896 public void setUserEnabled(int userId) { 897 checkManageUsersPermission("enable user"); 898 synchronized (mPackagesLock) { 899 UserInfo info; 900 synchronized (mUsersLock) { 901 info = getUserInfoLU(userId); 902 } 903 if (info != null && !info.isEnabled()) { 904 info.flags ^= UserInfo.FLAG_DISABLED; 905 writeUserLP(getUserDataLU(info.id)); 906 } 907 } 908 } 909 910 /** 911 * Evicts a user's CE key by stopping and restarting the user. 912 * 913 * The key is evicted automatically by the user controller when the user has stopped. 914 */ 915 @Override 916 public void evictCredentialEncryptionKey(@UserIdInt int userId) { 917 checkManageUsersPermission("evict CE key"); 918 final IActivityManager am = ActivityManagerNative.getDefault(); 919 final long identity = Binder.clearCallingIdentity(); 920 try { 921 am.restartUserInBackground(userId); 922 } catch (RemoteException re) { 923 throw re.rethrowAsRuntimeException(); 924 } finally { 925 Binder.restoreCallingIdentity(identity); 926 } 927 } 928 929 @Override 930 public UserInfo getUserInfo(int userId) { 931 checkManageOrCreateUsersPermission("query user"); 932 synchronized (mUsersLock) { 933 return userWithName(getUserInfoLU(userId)); 934 } 935 } 936 937 /** 938 * Returns a UserInfo object with the name filled in, for Owner, or the original 939 * if the name is already set. 940 */ 941 private UserInfo userWithName(UserInfo orig) { 942 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 943 UserInfo withName = new UserInfo(orig); 944 withName.name = getOwnerName(); 945 return withName; 946 } else { 947 return orig; 948 } 949 } 950 951 @Override 952 public int getManagedProfileBadge(@UserIdInt int userId) { 953 int callingUserId = UserHandle.getCallingUserId(); 954 if (callingUserId != userId && !hasManageUsersPermission()) { 955 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 956 throw new SecurityException( 957 "You need MANAGE_USERS permission to: check if specified user a " + 958 "managed profile outside your profile group"); 959 } 960 } 961 synchronized (mUsersLock) { 962 UserInfo userInfo = getUserInfoLU(userId); 963 return userInfo != null ? userInfo.profileBadge : 0; 964 } 965 } 966 967 @Override 968 public boolean isManagedProfile(int userId) { 969 int callingUserId = UserHandle.getCallingUserId(); 970 if (callingUserId != userId && !hasManageUsersPermission()) { 971 if (!isSameProfileGroupNoChecks(callingUserId, userId)) { 972 throw new SecurityException( 973 "You need MANAGE_USERS permission to: check if specified user a " + 974 "managed profile outside your profile group"); 975 } 976 } 977 synchronized (mUsersLock) { 978 UserInfo userInfo = getUserInfoLU(userId); 979 return userInfo != null && userInfo.isManagedProfile(); 980 } 981 } 982 983 @Override 984 public boolean isUserUnlockingOrUnlocked(int userId) { 985 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlockingOrUnlocked"); 986 return mLocalService.isUserUnlockingOrUnlocked(userId); 987 } 988 989 @Override 990 public boolean isUserUnlocked(int userId) { 991 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserUnlocked"); 992 return mLocalService.isUserUnlocked(userId); 993 } 994 995 @Override 996 public boolean isUserRunning(int userId) { 997 checkManageOrInteractPermIfCallerInOtherProfileGroup(userId, "isUserRunning"); 998 return mLocalService.isUserRunning(userId); 999 } 1000 1001 private void checkManageOrInteractPermIfCallerInOtherProfileGroup(int userId, String name) { 1002 int callingUserId = UserHandle.getCallingUserId(); 1003 if (callingUserId == userId || isSameProfileGroupNoChecks(callingUserId, userId) || 1004 hasManageUsersPermission()) { 1005 return; 1006 } 1007 if (ActivityManager.checkComponentPermission(Manifest.permission.INTERACT_ACROSS_USERS, 1008 Binder.getCallingUid(), -1, true) != PackageManager.PERMISSION_GRANTED) { 1009 throw new SecurityException("You need INTERACT_ACROSS_USERS or MANAGE_USERS permission " 1010 + "to: check " + name); 1011 } 1012 } 1013 1014 @Override 1015 public boolean isDemoUser(int userId) { 1016 int callingUserId = UserHandle.getCallingUserId(); 1017 if (callingUserId != userId && !hasManageUsersPermission()) { 1018 throw new SecurityException("You need MANAGE_USERS permission to query if u=" + userId 1019 + " is a demo user"); 1020 } 1021 synchronized (mUsersLock) { 1022 UserInfo userInfo = getUserInfoLU(userId); 1023 return userInfo != null && userInfo.isDemo(); 1024 } 1025 } 1026 1027 @Override 1028 public boolean isRestricted() { 1029 synchronized (mUsersLock) { 1030 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 1031 } 1032 } 1033 1034 @Override 1035 public boolean canHaveRestrictedProfile(int userId) { 1036 checkManageUsersPermission("canHaveRestrictedProfile"); 1037 synchronized (mUsersLock) { 1038 final UserInfo userInfo = getUserInfoLU(userId); 1039 if (userInfo == null || !userInfo.canHaveProfile()) { 1040 return false; 1041 } 1042 if (!userInfo.isAdmin()) { 1043 return false; 1044 } 1045 // restricted profile can be created if there is no DO set and the admin user has no PO; 1046 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 1047 } 1048 } 1049 1050 @Override 1051 public boolean hasRestrictedProfiles() { 1052 checkManageUsersPermission("hasRestrictedProfiles"); 1053 final int callingUserId = UserHandle.getCallingUserId(); 1054 synchronized (mUsersLock) { 1055 final int userSize = mUsers.size(); 1056 for (int i = 0; i < userSize; i++) { 1057 UserInfo profile = mUsers.valueAt(i).info; 1058 if (callingUserId != profile.id 1059 && profile.restrictedProfileParentId == callingUserId) { 1060 return true; 1061 } 1062 } 1063 return false; 1064 } 1065 } 1066 1067 /* 1068 * Should be locked on mUsers before calling this. 1069 */ 1070 private UserInfo getUserInfoLU(int userId) { 1071 final UserData userData = mUsers.get(userId); 1072 // If it is partial and not in the process of being removed, return as unknown user. 1073 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 1074 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 1075 return null; 1076 } 1077 return userData != null ? userData.info : null; 1078 } 1079 1080 private UserData getUserDataLU(int userId) { 1081 final UserData userData = mUsers.get(userId); 1082 // If it is partial and not in the process of being removed, return as unknown user. 1083 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 1084 return null; 1085 } 1086 return userData; 1087 } 1088 1089 /** 1090 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 1091 * <p>No permissions checking or any addition checks are made</p> 1092 */ 1093 private UserInfo getUserInfoNoChecks(int userId) { 1094 synchronized (mUsersLock) { 1095 final UserData userData = mUsers.get(userId); 1096 return userData != null ? userData.info : null; 1097 } 1098 } 1099 1100 /** 1101 * Obtains {@link #mUsersLock} and return UserData from mUsers. 1102 * <p>No permissions checking or any addition checks are made</p> 1103 */ 1104 private UserData getUserDataNoChecks(int userId) { 1105 synchronized (mUsersLock) { 1106 return mUsers.get(userId); 1107 } 1108 } 1109 1110 /** Called by PackageManagerService */ 1111 public boolean exists(int userId) { 1112 return mLocalService.exists(userId); 1113 } 1114 1115 @Override 1116 public void setUserName(int userId, String name) { 1117 checkManageUsersPermission("rename users"); 1118 boolean changed = false; 1119 synchronized (mPackagesLock) { 1120 UserData userData = getUserDataNoChecks(userId); 1121 if (userData == null || userData.info.partial) { 1122 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 1123 return; 1124 } 1125 if (name != null && !name.equals(userData.info.name)) { 1126 userData.info.name = name; 1127 writeUserLP(userData); 1128 changed = true; 1129 } 1130 } 1131 if (changed) { 1132 sendUserInfoChangedBroadcast(userId); 1133 } 1134 } 1135 1136 @Override 1137 public void setUserIcon(int userId, Bitmap bitmap) { 1138 checkManageUsersPermission("update users"); 1139 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 1140 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 1141 return; 1142 } 1143 mLocalService.setUserIcon(userId, bitmap); 1144 } 1145 1146 1147 1148 private void sendUserInfoChangedBroadcast(int userId) { 1149 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 1150 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 1151 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1152 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 1153 } 1154 1155 @Override 1156 public ParcelFileDescriptor getUserIcon(int targetUserId) { 1157 String iconPath; 1158 synchronized (mPackagesLock) { 1159 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 1160 if (targetUserInfo == null || targetUserInfo.partial) { 1161 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 1162 return null; 1163 } 1164 1165 final int callingUserId = UserHandle.getCallingUserId(); 1166 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 1167 final int targetGroupId = targetUserInfo.profileGroupId; 1168 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 1169 && callingGroupId == targetGroupId); 1170 if ((callingUserId != targetUserId) && !sameGroup) { 1171 checkManageUsersPermission("get the icon of a user who is not related"); 1172 } 1173 1174 if (targetUserInfo.iconPath == null) { 1175 return null; 1176 } 1177 iconPath = targetUserInfo.iconPath; 1178 } 1179 1180 try { 1181 return ParcelFileDescriptor.open( 1182 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 1183 } catch (FileNotFoundException e) { 1184 Log.e(LOG_TAG, "Couldn't find icon file", e); 1185 } 1186 return null; 1187 } 1188 1189 public void makeInitialized(int userId) { 1190 checkManageUsersPermission("makeInitialized"); 1191 boolean scheduleWriteUser = false; 1192 UserData userData; 1193 synchronized (mUsersLock) { 1194 userData = mUsers.get(userId); 1195 if (userData == null || userData.info.partial) { 1196 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 1197 return; 1198 } 1199 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1200 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1201 scheduleWriteUser = true; 1202 } 1203 } 1204 if (scheduleWriteUser) { 1205 scheduleWriteUser(userData); 1206 } 1207 } 1208 1209 /** 1210 * If default guest restrictions haven't been initialized yet, add the basic 1211 * restrictions. 1212 */ 1213 private void initDefaultGuestRestrictions() { 1214 synchronized (mGuestRestrictions) { 1215 if (mGuestRestrictions.isEmpty()) { 1216 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 1217 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 1218 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 1219 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 1220 } 1221 } 1222 } 1223 1224 @Override 1225 public Bundle getDefaultGuestRestrictions() { 1226 checkManageUsersPermission("getDefaultGuestRestrictions"); 1227 synchronized (mGuestRestrictions) { 1228 return new Bundle(mGuestRestrictions); 1229 } 1230 } 1231 1232 @Override 1233 public void setDefaultGuestRestrictions(Bundle restrictions) { 1234 checkManageUsersPermission("setDefaultGuestRestrictions"); 1235 synchronized (mGuestRestrictions) { 1236 mGuestRestrictions.clear(); 1237 mGuestRestrictions.putAll(restrictions); 1238 } 1239 synchronized (mPackagesLock) { 1240 writeUserListLP(); 1241 } 1242 } 1243 1244 /** 1245 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions} 1246 */ 1247 private void setDevicePolicyUserRestrictionsInner(int userId, @Nullable Bundle restrictions, 1248 boolean isDeviceOwner, int cameraRestrictionScope) { 1249 final Bundle global = new Bundle(); 1250 final Bundle local = new Bundle(); 1251 1252 // Sort restrictions into local and global ensuring they don't overlap. 1253 UserRestrictionsUtils.sortToGlobalAndLocal(restrictions, isDeviceOwner, 1254 cameraRestrictionScope, global, local); 1255 1256 boolean globalChanged, localChanged; 1257 synchronized (mRestrictionsLock) { 1258 // Update global and local restrictions if they were changed. 1259 globalChanged = updateRestrictionsIfNeededLR( 1260 userId, global, mDevicePolicyGlobalUserRestrictions); 1261 localChanged = updateRestrictionsIfNeededLR( 1262 userId, local, mDevicePolicyLocalUserRestrictions); 1263 1264 if (isDeviceOwner) { 1265 // Remember the global restriction owner userId to be able to make a distinction 1266 // in getUserRestrictionSource on who set local policies. 1267 mDeviceOwnerUserId = userId; 1268 } else { 1269 if (mDeviceOwnerUserId == userId) { 1270 // When profile owner sets restrictions it passes null global bundle and we 1271 // reset global restriction owner userId. 1272 // This means this user used to have DO, but now the DO is gone and the user 1273 // instead has PO. 1274 mDeviceOwnerUserId = UserHandle.USER_NULL; 1275 } 1276 } 1277 } 1278 if (DBG) { 1279 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1280 + " global=" + global + (globalChanged ? " (changed)" : "") 1281 + " local=" + local + (localChanged ? " (changed)" : "") 1282 ); 1283 } 1284 // Don't call them within the mRestrictionsLock. 1285 synchronized (mPackagesLock) { 1286 if (localChanged || globalChanged) { 1287 writeUserLP(getUserDataNoChecks(userId)); 1288 } 1289 } 1290 1291 synchronized (mRestrictionsLock) { 1292 if (globalChanged) { 1293 applyUserRestrictionsForAllUsersLR(); 1294 } else if (localChanged) { 1295 applyUserRestrictionsLR(userId); 1296 } 1297 } 1298 } 1299 1300 /** 1301 * Updates restriction bundle for a given user in a given restriction array. If new bundle is 1302 * empty, record is removed from the array. 1303 * @return whether restrictions bundle is different from the old one. 1304 */ 1305 private boolean updateRestrictionsIfNeededLR(int userId, @Nullable Bundle restrictions, 1306 SparseArray<Bundle> restrictionsArray) { 1307 final boolean changed = 1308 !UserRestrictionsUtils.areEqual(restrictionsArray.get(userId), restrictions); 1309 if (changed) { 1310 if (!UserRestrictionsUtils.isEmpty(restrictions)) { 1311 restrictionsArray.put(userId, restrictions); 1312 } else { 1313 restrictionsArray.delete(userId); 1314 } 1315 } 1316 return changed; 1317 } 1318 1319 @GuardedBy("mRestrictionsLock") 1320 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1321 final Bundle baseRestrictions = 1322 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1323 final Bundle global = UserRestrictionsUtils.mergeAll(mDevicePolicyGlobalUserRestrictions); 1324 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1325 1326 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1327 // Common case first. 1328 return baseRestrictions; 1329 } 1330 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1331 UserRestrictionsUtils.merge(effective, global); 1332 UserRestrictionsUtils.merge(effective, local); 1333 1334 return effective; 1335 } 1336 1337 @GuardedBy("mRestrictionsLock") 1338 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1339 if (DBG) { 1340 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1341 } 1342 mCachedEffectiveUserRestrictions.remove(userId); 1343 } 1344 1345 private Bundle getEffectiveUserRestrictions(int userId) { 1346 synchronized (mRestrictionsLock) { 1347 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1348 if (restrictions == null) { 1349 restrictions = computeEffectiveUserRestrictionsLR(userId); 1350 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1351 } 1352 return restrictions; 1353 } 1354 } 1355 1356 /** @return a specific user restriction that's in effect currently. */ 1357 @Override 1358 public boolean hasUserRestriction(String restrictionKey, int userId) { 1359 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1360 return false; 1361 } 1362 Bundle restrictions = getEffectiveUserRestrictions(userId); 1363 return restrictions != null && restrictions.getBoolean(restrictionKey); 1364 } 1365 1366 /** 1367 * @hide 1368 * 1369 * Returns who set a user restriction on a user. 1370 * Requires {@link android.Manifest.permission#MANAGE_USERS} permission. 1371 * @param restrictionKey the string key representing the restriction 1372 * @param userId the id of the user for whom to retrieve the restrictions. 1373 * @return The source of user restriction. Any combination of 1374 * {@link UserManager#RESTRICTION_NOT_SET}, 1375 * {@link UserManager#RESTRICTION_SOURCE_SYSTEM}, 1376 * {@link UserManager#RESTRICTION_SOURCE_DEVICE_OWNER} 1377 * and {@link UserManager#RESTRICTION_SOURCE_PROFILE_OWNER} 1378 */ 1379 @Override 1380 public int getUserRestrictionSource(String restrictionKey, int userId) { 1381 List<EnforcingUser> enforcingUsers = getUserRestrictionSources(restrictionKey, userId); 1382 // Get "bitwise or" of restriction sources for all enforcing users. 1383 int result = UserManager.RESTRICTION_NOT_SET; 1384 for (int i = enforcingUsers.size() - 1; i >= 0; i--) { 1385 result |= enforcingUsers.get(i).getUserRestrictionSource(); 1386 } 1387 return result; 1388 } 1389 1390 @Override 1391 public List<EnforcingUser> getUserRestrictionSources( 1392 String restrictionKey, @UserIdInt int userId) { 1393 checkManageUsersPermission("getUserRestrictionSource"); 1394 1395 // Shortcut for the most common case 1396 if (!hasUserRestriction(restrictionKey, userId)) { 1397 return Collections.emptyList(); 1398 } 1399 1400 final List<EnforcingUser> result = new ArrayList<>(); 1401 1402 // Check if it is base restriction. 1403 if (hasBaseUserRestriction(restrictionKey, userId)) { 1404 result.add(new EnforcingUser( 1405 UserHandle.USER_NULL, UserManager.RESTRICTION_SOURCE_SYSTEM)); 1406 } 1407 1408 synchronized (mRestrictionsLock) { 1409 // Check if it is set by profile owner. 1410 Bundle profileOwnerRestrictions = mDevicePolicyLocalUserRestrictions.get(userId); 1411 if (UserRestrictionsUtils.contains(profileOwnerRestrictions, restrictionKey)) { 1412 result.add(getEnforcingUserLocked(userId)); 1413 } 1414 1415 // Iterate over all users who enforce global restrictions. 1416 for (int i = mDevicePolicyGlobalUserRestrictions.size() - 1; i >= 0; i--) { 1417 Bundle globalRestrictions = mDevicePolicyGlobalUserRestrictions.valueAt(i); 1418 int profileUserId = mDevicePolicyGlobalUserRestrictions.keyAt(i); 1419 if (UserRestrictionsUtils.contains(globalRestrictions, restrictionKey)) { 1420 result.add(getEnforcingUserLocked(profileUserId)); 1421 } 1422 } 1423 } 1424 return result; 1425 } 1426 1427 private EnforcingUser getEnforcingUserLocked(@UserIdInt int userId) { 1428 int source = mDeviceOwnerUserId == userId ? UserManager.RESTRICTION_SOURCE_DEVICE_OWNER 1429 : UserManager.RESTRICTION_SOURCE_PROFILE_OWNER; 1430 return new EnforcingUser(userId, source); 1431 } 1432 1433 /** 1434 * @return UserRestrictions that are in effect currently. This always returns a new 1435 * {@link Bundle}. 1436 */ 1437 @Override 1438 public Bundle getUserRestrictions(int userId) { 1439 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1440 } 1441 1442 @Override 1443 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1444 checkManageUsersPermission("hasBaseUserRestriction"); 1445 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1446 return false; 1447 } 1448 synchronized (mRestrictionsLock) { 1449 Bundle bundle = mBaseUserRestrictions.get(userId); 1450 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1451 } 1452 } 1453 1454 @Override 1455 public void setUserRestriction(String key, boolean value, int userId) { 1456 checkManageUsersPermission("setUserRestriction"); 1457 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1458 return; 1459 } 1460 synchronized (mRestrictionsLock) { 1461 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1462 // a copy. 1463 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1464 mBaseUserRestrictions.get(userId)); 1465 newRestrictions.putBoolean(key, value); 1466 1467 updateUserRestrictionsInternalLR(newRestrictions, userId); 1468 } 1469 } 1470 1471 /** 1472 * Optionally updating user restrictions, calculate the effective user restrictions and also 1473 * propagate to other services and system settings. 1474 * 1475 * @param newBaseRestrictions User restrictions to set. 1476 * If null, will not update user restrictions and only does the propagation. 1477 * @param userId target user ID. 1478 */ 1479 @GuardedBy("mRestrictionsLock") 1480 private void updateUserRestrictionsInternalLR( 1481 @Nullable Bundle newBaseRestrictions, int userId) { 1482 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1483 mAppliedUserRestrictions.get(userId)); 1484 1485 // Update base restrictions. 1486 if (newBaseRestrictions != null) { 1487 // If newBaseRestrictions == the current one, it's probably a bug. 1488 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1489 1490 Preconditions.checkState(prevBaseRestrictions != newBaseRestrictions); 1491 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1492 != newBaseRestrictions); 1493 1494 if (updateRestrictionsIfNeededLR(userId, newBaseRestrictions, mBaseUserRestrictions)) { 1495 scheduleWriteUser(getUserDataNoChecks(userId)); 1496 } 1497 } 1498 1499 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1500 1501 mCachedEffectiveUserRestrictions.put(userId, effective); 1502 1503 // Apply the new restrictions. 1504 if (DBG) { 1505 debug("Applying user restrictions: userId=" + userId 1506 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1507 } 1508 1509 if (mAppOpsService != null) { // We skip it until system-ready. 1510 mHandler.post(new Runnable() { 1511 @Override 1512 public void run() { 1513 try { 1514 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1515 } catch (RemoteException e) { 1516 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1517 } 1518 } 1519 }); 1520 } 1521 1522 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1523 1524 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1525 } 1526 1527 private void propagateUserRestrictionsLR(final int userId, 1528 Bundle newRestrictions, Bundle prevRestrictions) { 1529 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1530 // actually, but we still need some kind of synchronization otherwise we might end up 1531 // calling listeners out-of-order, thus "LR". 1532 1533 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1534 return; 1535 } 1536 1537 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1538 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1539 1540 mHandler.post(new Runnable() { 1541 @Override 1542 public void run() { 1543 UserRestrictionsUtils.applyUserRestrictions( 1544 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1545 1546 final UserRestrictionsListener[] listeners; 1547 synchronized (mUserRestrictionsListeners) { 1548 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1549 mUserRestrictionsListeners.toArray(listeners); 1550 } 1551 for (int i = 0; i < listeners.length; i++) { 1552 listeners[i].onUserRestrictionsChanged(userId, 1553 newRestrictionsFinal, prevRestrictionsFinal); 1554 } 1555 1556 final Intent broadcast = new Intent(UserManager.ACTION_USER_RESTRICTIONS_CHANGED) 1557 .setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1558 mContext.sendBroadcastAsUser(broadcast, UserHandle.of(userId)); 1559 } 1560 }); 1561 } 1562 1563 // Package private for the inner class. 1564 void applyUserRestrictionsLR(int userId) { 1565 updateUserRestrictionsInternalLR(null, userId); 1566 } 1567 1568 @GuardedBy("mRestrictionsLock") 1569 // Package private for the inner class. 1570 void applyUserRestrictionsForAllUsersLR() { 1571 if (DBG) { 1572 debug("applyUserRestrictionsForAllUsersLR"); 1573 } 1574 // First, invalidate all cached values. 1575 mCachedEffectiveUserRestrictions.clear(); 1576 1577 // We don't want to call into ActivityManagerService while taking a lock, so we'll call 1578 // it on a handler. 1579 final Runnable r = new Runnable() { 1580 @Override 1581 public void run() { 1582 // Then get the list of running users. 1583 final int[] runningUsers; 1584 try { 1585 runningUsers = ActivityManager.getService().getRunningUserIds(); 1586 } catch (RemoteException e) { 1587 Log.w(LOG_TAG, "Unable to access ActivityManagerService"); 1588 return; 1589 } 1590 // Then re-calculate the effective restrictions and apply, only for running users. 1591 // It's okay if a new user has started after the getRunningUserIds() call, 1592 // because we'll do the same thing (re-calculate the restrictions and apply) 1593 // when we start a user. 1594 synchronized (mRestrictionsLock) { 1595 for (int i = 0; i < runningUsers.length; i++) { 1596 applyUserRestrictionsLR(runningUsers[i]); 1597 } 1598 } 1599 } 1600 }; 1601 mHandler.post(r); 1602 } 1603 1604 /** 1605 * Check if we've hit the limit of how many users can be created. 1606 */ 1607 private boolean isUserLimitReached() { 1608 int count; 1609 synchronized (mUsersLock) { 1610 count = getAliveUsersExcludingGuestsCountLU(); 1611 } 1612 return count >= UserManager.getMaxSupportedUsers(); 1613 } 1614 1615 @Override 1616 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1617 checkManageUsersPermission("check if more managed profiles can be added."); 1618 if (ActivityManager.isLowRamDeviceStatic()) { 1619 return false; 1620 } 1621 if (!mContext.getPackageManager().hasSystemFeature( 1622 PackageManager.FEATURE_MANAGED_USERS)) { 1623 return false; 1624 } 1625 // Limit number of managed profiles that can be created 1626 final int managedProfilesCount = getProfiles(userId, false).size() - 1; 1627 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1628 if (managedProfilesCount - profilesRemovedCount >= getMaxManagedProfiles()) { 1629 return false; 1630 } 1631 synchronized(mUsersLock) { 1632 UserInfo userInfo = getUserInfoLU(userId); 1633 if (userInfo == null || !userInfo.canHaveProfile()) { 1634 return false; 1635 } 1636 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1637 - profilesRemovedCount; 1638 // We allow creating a managed profile in the special case where there is only one user. 1639 return usersCountAfterRemoving == 1 1640 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1641 } 1642 } 1643 1644 private int getAliveUsersExcludingGuestsCountLU() { 1645 int aliveUserCount = 0; 1646 final int totalUserCount = mUsers.size(); 1647 // Skip over users being removed 1648 for (int i = 0; i < totalUserCount; i++) { 1649 UserInfo user = mUsers.valueAt(i).info; 1650 if (!mRemovingUserIds.get(user.id) && !user.isGuest()) { 1651 aliveUserCount++; 1652 } 1653 } 1654 return aliveUserCount; 1655 } 1656 1657 /** 1658 * Enforces that only the system UID or root's UID or apps that have the 1659 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1660 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1661 * permissions can make certain calls to the UserManager. 1662 * 1663 * @param message used as message if SecurityException is thrown 1664 * @throws SecurityException if the caller does not have enough privilege. 1665 */ 1666 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1667 final int uid = Binder.getCallingUid(); 1668 if (uid != Process.SYSTEM_UID && uid != 0 1669 && ActivityManager.checkComponentPermission( 1670 Manifest.permission.MANAGE_USERS, 1671 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1672 && ActivityManager.checkComponentPermission( 1673 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1674 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1675 throw new SecurityException( 1676 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1677 + message); 1678 } 1679 } 1680 1681 /** 1682 * Enforces that only the system UID or root's UID or apps that have the 1683 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1684 * permission can make certain calls to the UserManager. 1685 * 1686 * @param message used as message if SecurityException is thrown 1687 * @throws SecurityException if the caller is not system or root 1688 * @see #hasManageUsersPermission() 1689 */ 1690 private static final void checkManageUsersPermission(String message) { 1691 if (!hasManageUsersPermission()) { 1692 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1693 } 1694 } 1695 1696 /** 1697 * Enforces that only the system UID or root's UID or apps that have the 1698 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1699 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} 1700 * can make certain calls to the UserManager. 1701 * 1702 * @param message used as message if SecurityException is thrown 1703 * @throws SecurityException if the caller is not system or root 1704 * @see #hasManageOrCreateUsersPermission() 1705 */ 1706 private static final void checkManageOrCreateUsersPermission(String message) { 1707 if (!hasManageOrCreateUsersPermission()) { 1708 throw new SecurityException( 1709 "You either need MANAGE_USERS or CREATE_USERS permission to: " + message); 1710 } 1711 } 1712 1713 /** 1714 * Similar to {@link #checkManageOrCreateUsersPermission(String)} but when the caller is tries 1715 * to create user/profiles other than what is allowed for 1716 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS} permission, then it will only 1717 * allow callers with {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} permission. 1718 */ 1719 private static final void checkManageOrCreateUsersPermission(int creationFlags) { 1720 if ((creationFlags & ~ALLOWED_FLAGS_FOR_CREATE_USERS_PERMISSION) == 0) { 1721 if (!hasManageOrCreateUsersPermission()) { 1722 throw new SecurityException("You either need MANAGE_USERS or CREATE_USERS " 1723 + "permission to create an user with flags: " + creationFlags); 1724 } 1725 } else if (!hasManageUsersPermission()) { 1726 throw new SecurityException("You need MANAGE_USERS permission to create an user " 1727 + " with flags: " + creationFlags); 1728 } 1729 } 1730 1731 /** 1732 * @return whether the calling UID is system UID or root's UID or the calling app has the 1733 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1734 */ 1735 private static final boolean hasManageUsersPermission() { 1736 final int callingUid = Binder.getCallingUid(); 1737 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1738 || callingUid == Process.ROOT_UID 1739 || ActivityManager.checkComponentPermission( 1740 android.Manifest.permission.MANAGE_USERS, 1741 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1742 } 1743 1744 /** 1745 * @return whether the calling UID is system UID or root's UID or the calling app has the 1746 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} or 1747 * {@link android.Manifest.permission#CREATE_USERS CREATE_USERS}. 1748 */ 1749 private static final boolean hasManageOrCreateUsersPermission() { 1750 final int callingUid = Binder.getCallingUid(); 1751 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1752 || callingUid == Process.ROOT_UID 1753 || ActivityManager.checkComponentPermission( 1754 android.Manifest.permission.MANAGE_USERS, 1755 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED 1756 || ActivityManager.checkComponentPermission( 1757 android.Manifest.permission.CREATE_USERS, 1758 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1759 } 1760 1761 /** 1762 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1763 * UserManager. 1764 * 1765 * @param message used as message if SecurityException is thrown 1766 * @throws SecurityException if the caller is not system or root 1767 */ 1768 private static void checkSystemOrRoot(String message) { 1769 final int uid = Binder.getCallingUid(); 1770 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1771 throw new SecurityException("Only system may: " + message); 1772 } 1773 } 1774 1775 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1776 try { 1777 File dir = new File(mUsersDir, Integer.toString(info.id)); 1778 File file = new File(dir, USER_PHOTO_FILENAME); 1779 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1780 if (!dir.exists()) { 1781 dir.mkdir(); 1782 FileUtils.setPermissions( 1783 dir.getPath(), 1784 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1785 -1, -1); 1786 } 1787 FileOutputStream os; 1788 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1789 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1790 info.iconPath = file.getAbsolutePath(); 1791 } 1792 try { 1793 os.close(); 1794 } catch (IOException ioe) { 1795 // What the ... ! 1796 } 1797 tmp.delete(); 1798 } catch (FileNotFoundException e) { 1799 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1800 } 1801 } 1802 1803 /** 1804 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1805 * cache it elsewhere. 1806 * @return the array of user ids. 1807 */ 1808 public int[] getUserIds() { 1809 synchronized (mUsersLock) { 1810 return mUserIds; 1811 } 1812 } 1813 1814 private void readUserListLP() { 1815 if (!mUserListFile.exists()) { 1816 fallbackToSingleUserLP(); 1817 return; 1818 } 1819 FileInputStream fis = null; 1820 AtomicFile userListFile = new AtomicFile(mUserListFile); 1821 try { 1822 fis = userListFile.openRead(); 1823 XmlPullParser parser = Xml.newPullParser(); 1824 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1825 int type; 1826 while ((type = parser.next()) != XmlPullParser.START_TAG 1827 && type != XmlPullParser.END_DOCUMENT) { 1828 // Skip 1829 } 1830 1831 if (type != XmlPullParser.START_TAG) { 1832 Slog.e(LOG_TAG, "Unable to read user list"); 1833 fallbackToSingleUserLP(); 1834 return; 1835 } 1836 1837 mNextSerialNumber = -1; 1838 if (parser.getName().equals(TAG_USERS)) { 1839 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1840 if (lastSerialNumber != null) { 1841 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1842 } 1843 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1844 if (versionNumber != null) { 1845 mUserVersion = Integer.parseInt(versionNumber); 1846 } 1847 } 1848 1849 // Pre-O global user restriction were stored as a single bundle (as opposed to per-user 1850 // currently), take care of it in case of upgrade. 1851 Bundle oldDevicePolicyGlobalUserRestrictions = null; 1852 1853 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1854 if (type == XmlPullParser.START_TAG) { 1855 final String name = parser.getName(); 1856 if (name.equals(TAG_USER)) { 1857 String id = parser.getAttributeValue(null, ATTR_ID); 1858 1859 UserData userData = readUserLP(Integer.parseInt(id)); 1860 1861 if (userData != null) { 1862 synchronized (mUsersLock) { 1863 mUsers.put(userData.info.id, userData); 1864 if (mNextSerialNumber < 0 1865 || mNextSerialNumber <= userData.info.id) { 1866 mNextSerialNumber = userData.info.id + 1; 1867 } 1868 } 1869 } 1870 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1871 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1872 && type != XmlPullParser.END_TAG) { 1873 if (type == XmlPullParser.START_TAG) { 1874 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1875 synchronized (mGuestRestrictions) { 1876 UserRestrictionsUtils 1877 .readRestrictions(parser, mGuestRestrictions); 1878 } 1879 } 1880 break; 1881 } 1882 } 1883 } else if (name.equals(TAG_DEVICE_OWNER_USER_ID) 1884 // Legacy name, should only be encountered when upgrading from pre-O. 1885 || name.equals(TAG_GLOBAL_RESTRICTION_OWNER_ID)) { 1886 String ownerUserId = parser.getAttributeValue(null, ATTR_ID); 1887 if (ownerUserId != null) { 1888 mDeviceOwnerUserId = Integer.parseInt(ownerUserId); 1889 } 1890 } else if (name.equals(TAG_DEVICE_POLICY_RESTRICTIONS)) { 1891 // Should only happen when upgrading from pre-O (version < 7). 1892 oldDevicePolicyGlobalUserRestrictions = 1893 UserRestrictionsUtils.readRestrictions(parser); 1894 } 1895 } 1896 } 1897 1898 updateUserIds(); 1899 upgradeIfNecessaryLP(oldDevicePolicyGlobalUserRestrictions); 1900 } catch (IOException | XmlPullParserException e) { 1901 fallbackToSingleUserLP(); 1902 } finally { 1903 IoUtils.closeQuietly(fis); 1904 } 1905 } 1906 1907 /** 1908 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1909 * @param oldGlobalUserRestrictions Pre-O global device policy restrictions. 1910 */ 1911 private void upgradeIfNecessaryLP(Bundle oldGlobalUserRestrictions) { 1912 final int originalVersion = mUserVersion; 1913 int userVersion = mUserVersion; 1914 if (userVersion < 1) { 1915 // Assign a proper name for the owner, if not initialized correctly before 1916 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1917 if ("Primary".equals(userData.info.name)) { 1918 userData.info.name = 1919 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1920 scheduleWriteUser(userData); 1921 } 1922 userVersion = 1; 1923 } 1924 1925 if (userVersion < 2) { 1926 // Owner should be marked as initialized 1927 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1928 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1929 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1930 scheduleWriteUser(userData); 1931 } 1932 userVersion = 2; 1933 } 1934 1935 1936 if (userVersion < 4) { 1937 userVersion = 4; 1938 } 1939 1940 if (userVersion < 5) { 1941 initDefaultGuestRestrictions(); 1942 userVersion = 5; 1943 } 1944 1945 if (userVersion < 6) { 1946 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1947 synchronized (mUsersLock) { 1948 for (int i = 0; i < mUsers.size(); i++) { 1949 UserData userData = mUsers.valueAt(i); 1950 // In non-split mode, only user 0 can have restricted profiles 1951 if (!splitSystemUser && userData.info.isRestricted() 1952 && (userData.info.restrictedProfileParentId 1953 == UserInfo.NO_PROFILE_GROUP_ID)) { 1954 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1955 scheduleWriteUser(userData); 1956 } 1957 } 1958 } 1959 userVersion = 6; 1960 } 1961 1962 if (userVersion < 7) { 1963 // Previously only one user could enforce global restrictions, now it is per-user. 1964 synchronized (mRestrictionsLock) { 1965 if (!UserRestrictionsUtils.isEmpty(oldGlobalUserRestrictions) 1966 && mDeviceOwnerUserId != UserHandle.USER_NULL) { 1967 mDevicePolicyGlobalUserRestrictions.put( 1968 mDeviceOwnerUserId, oldGlobalUserRestrictions); 1969 } 1970 // ENSURE_VERIFY_APPS is now enforced globally even if put by profile owner, so move 1971 // it from local to global bundle for all users who set it. 1972 UserRestrictionsUtils.moveRestriction(UserManager.ENSURE_VERIFY_APPS, 1973 mDevicePolicyLocalUserRestrictions, mDevicePolicyGlobalUserRestrictions 1974 ); 1975 } 1976 userVersion = 7; 1977 } 1978 1979 if (userVersion < USER_VERSION) { 1980 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1981 + USER_VERSION); 1982 } else { 1983 mUserVersion = userVersion; 1984 1985 if (originalVersion < mUserVersion) { 1986 writeUserListLP(); 1987 } 1988 } 1989 } 1990 1991 private void fallbackToSingleUserLP() { 1992 int flags = UserInfo.FLAG_INITIALIZED; 1993 // In split system user mode, the admin and primary flags are assigned to the first human 1994 // user. 1995 if (!UserManager.isSplitSystemUser()) { 1996 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1997 } 1998 // Create the system user 1999 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 2000 UserData userData = putUserInfo(system); 2001 mNextSerialNumber = MIN_USER_ID; 2002 mUserVersion = USER_VERSION; 2003 2004 Bundle restrictions = new Bundle(); 2005 try { 2006 final String[] defaultFirstUserRestrictions = mContext.getResources().getStringArray( 2007 com.android.internal.R.array.config_defaultFirstUserRestrictions); 2008 for (String userRestriction : defaultFirstUserRestrictions) { 2009 if (UserRestrictionsUtils.isValidRestriction(userRestriction)) { 2010 restrictions.putBoolean(userRestriction, true); 2011 } 2012 } 2013 } catch (Resources.NotFoundException e) { 2014 Log.e(LOG_TAG, "Couldn't find resource: config_defaultFirstUserRestrictions", e); 2015 } 2016 2017 if (!restrictions.isEmpty()) { 2018 synchronized (mRestrictionsLock) { 2019 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 2020 } 2021 } 2022 2023 updateUserIds(); 2024 initDefaultGuestRestrictions(); 2025 2026 writeUserLP(userData); 2027 writeUserListLP(); 2028 } 2029 2030 private String getOwnerName() { 2031 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 2032 } 2033 2034 private void scheduleWriteUser(UserData UserData) { 2035 if (DBG) { 2036 debug("scheduleWriteUser"); 2037 } 2038 // No need to wrap it within a lock -- worst case, we'll just post the same message 2039 // twice. 2040 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 2041 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 2042 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 2043 } 2044 } 2045 2046 private void writeUserLP(UserData userData) { 2047 if (DBG) { 2048 debug("writeUserLP " + userData); 2049 } 2050 FileOutputStream fos = null; 2051 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 2052 try { 2053 fos = userFile.startWrite(); 2054 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2055 writeUserLP(userData, bos); 2056 userFile.finishWrite(fos); 2057 } catch (Exception ioe) { 2058 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 2059 userFile.failWrite(fos); 2060 } 2061 } 2062 2063 /* 2064 * Writes the user file in this format: 2065 * 2066 * <user flags="20039023" id="0"> 2067 * <name>Primary</name> 2068 * </user> 2069 */ 2070 @VisibleForTesting 2071 void writeUserLP(UserData userData, OutputStream os) 2072 throws IOException, XmlPullParserException { 2073 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2074 final XmlSerializer serializer = new FastXmlSerializer(); 2075 serializer.setOutput(os, StandardCharsets.UTF_8.name()); 2076 serializer.startDocument(null, true); 2077 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2078 2079 final UserInfo userInfo = userData.info; 2080 serializer.startTag(null, TAG_USER); 2081 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 2082 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 2083 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 2084 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 2085 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 2086 Long.toString(userInfo.lastLoggedInTime)); 2087 if (userInfo.lastLoggedInFingerprint != null) { 2088 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 2089 userInfo.lastLoggedInFingerprint); 2090 } 2091 if (userInfo.iconPath != null) { 2092 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 2093 } 2094 if (userInfo.partial) { 2095 serializer.attribute(null, ATTR_PARTIAL, "true"); 2096 } 2097 if (userInfo.guestToRemove) { 2098 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 2099 } 2100 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 2101 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 2102 Integer.toString(userInfo.profileGroupId)); 2103 } 2104 serializer.attribute(null, ATTR_PROFILE_BADGE, 2105 Integer.toString(userInfo.profileBadge)); 2106 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 2107 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 2108 Integer.toString(userInfo.restrictedProfileParentId)); 2109 } 2110 // Write seed data 2111 if (userData.persistSeedData) { 2112 if (userData.seedAccountName != null) { 2113 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 2114 } 2115 if (userData.seedAccountType != null) { 2116 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 2117 } 2118 } 2119 if (userInfo.name != null) { 2120 serializer.startTag(null, TAG_NAME); 2121 serializer.text(userInfo.name); 2122 serializer.endTag(null, TAG_NAME); 2123 } 2124 synchronized (mRestrictionsLock) { 2125 UserRestrictionsUtils.writeRestrictions(serializer, 2126 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 2127 UserRestrictionsUtils.writeRestrictions(serializer, 2128 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 2129 TAG_DEVICE_POLICY_RESTRICTIONS); 2130 UserRestrictionsUtils.writeRestrictions(serializer, 2131 mDevicePolicyGlobalUserRestrictions.get(userInfo.id), 2132 TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS); 2133 } 2134 2135 if (userData.account != null) { 2136 serializer.startTag(null, TAG_ACCOUNT); 2137 serializer.text(userData.account); 2138 serializer.endTag(null, TAG_ACCOUNT); 2139 } 2140 2141 if (userData.persistSeedData && userData.seedAccountOptions != null) { 2142 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2143 userData.seedAccountOptions.saveToXml(serializer); 2144 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 2145 } 2146 2147 serializer.endTag(null, TAG_USER); 2148 2149 serializer.endDocument(); 2150 } 2151 2152 /* 2153 * Writes the user list file in this format: 2154 * 2155 * <users nextSerialNumber="3"> 2156 * <user id="0"></user> 2157 * <user id="2"></user> 2158 * </users> 2159 */ 2160 private void writeUserListLP() { 2161 if (DBG) { 2162 debug("writeUserList"); 2163 } 2164 FileOutputStream fos = null; 2165 AtomicFile userListFile = new AtomicFile(mUserListFile); 2166 try { 2167 fos = userListFile.startWrite(); 2168 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2169 2170 // XmlSerializer serializer = XmlUtils.serializerInstance(); 2171 final XmlSerializer serializer = new FastXmlSerializer(); 2172 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2173 serializer.startDocument(null, true); 2174 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2175 2176 serializer.startTag(null, TAG_USERS); 2177 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 2178 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 2179 2180 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 2181 synchronized (mGuestRestrictions) { 2182 UserRestrictionsUtils 2183 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 2184 } 2185 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 2186 serializer.startTag(null, TAG_DEVICE_OWNER_USER_ID); 2187 serializer.attribute(null, ATTR_ID, Integer.toString(mDeviceOwnerUserId)); 2188 serializer.endTag(null, TAG_DEVICE_OWNER_USER_ID); 2189 int[] userIdsToWrite; 2190 synchronized (mUsersLock) { 2191 userIdsToWrite = new int[mUsers.size()]; 2192 for (int i = 0; i < userIdsToWrite.length; i++) { 2193 UserInfo user = mUsers.valueAt(i).info; 2194 userIdsToWrite[i] = user.id; 2195 } 2196 } 2197 for (int id : userIdsToWrite) { 2198 serializer.startTag(null, TAG_USER); 2199 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 2200 serializer.endTag(null, TAG_USER); 2201 } 2202 2203 serializer.endTag(null, TAG_USERS); 2204 2205 serializer.endDocument(); 2206 userListFile.finishWrite(fos); 2207 } catch (Exception e) { 2208 userListFile.failWrite(fos); 2209 Slog.e(LOG_TAG, "Error writing user list"); 2210 } 2211 } 2212 2213 private UserData readUserLP(int id) { 2214 FileInputStream fis = null; 2215 try { 2216 AtomicFile userFile = 2217 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 2218 fis = userFile.openRead(); 2219 return readUserLP(id, fis); 2220 } catch (IOException ioe) { 2221 Slog.e(LOG_TAG, "Error reading user list"); 2222 } catch (XmlPullParserException pe) { 2223 Slog.e(LOG_TAG, "Error reading user list"); 2224 } finally { 2225 IoUtils.closeQuietly(fis); 2226 } 2227 return null; 2228 } 2229 2230 @VisibleForTesting 2231 UserData readUserLP(int id, InputStream is) throws IOException, 2232 XmlPullParserException { 2233 int flags = 0; 2234 int serialNumber = id; 2235 String name = null; 2236 String account = null; 2237 String iconPath = null; 2238 long creationTime = 0L; 2239 long lastLoggedInTime = 0L; 2240 String lastLoggedInFingerprint = null; 2241 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 2242 int profileBadge = 0; 2243 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 2244 boolean partial = false; 2245 boolean guestToRemove = false; 2246 boolean persistSeedData = false; 2247 String seedAccountName = null; 2248 String seedAccountType = null; 2249 PersistableBundle seedAccountOptions = null; 2250 Bundle baseRestrictions = null; 2251 Bundle localRestrictions = null; 2252 Bundle globalRestrictions = null; 2253 2254 XmlPullParser parser = Xml.newPullParser(); 2255 parser.setInput(is, StandardCharsets.UTF_8.name()); 2256 int type; 2257 while ((type = parser.next()) != XmlPullParser.START_TAG 2258 && type != XmlPullParser.END_DOCUMENT) { 2259 // Skip 2260 } 2261 2262 if (type != XmlPullParser.START_TAG) { 2263 Slog.e(LOG_TAG, "Unable to read user " + id); 2264 return null; 2265 } 2266 2267 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 2268 int storedId = readIntAttribute(parser, ATTR_ID, -1); 2269 if (storedId != id) { 2270 Slog.e(LOG_TAG, "User id does not match the file name"); 2271 return null; 2272 } 2273 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 2274 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 2275 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 2276 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 2277 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 2278 lastLoggedInFingerprint = parser.getAttributeValue(null, 2279 ATTR_LAST_LOGGED_IN_FINGERPRINT); 2280 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 2281 UserInfo.NO_PROFILE_GROUP_ID); 2282 profileBadge = readIntAttribute(parser, ATTR_PROFILE_BADGE, 0); 2283 restrictedProfileParentId = readIntAttribute(parser, 2284 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 2285 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 2286 if ("true".equals(valueString)) { 2287 partial = true; 2288 } 2289 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 2290 if ("true".equals(valueString)) { 2291 guestToRemove = true; 2292 } 2293 2294 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 2295 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 2296 if (seedAccountName != null || seedAccountType != null) { 2297 persistSeedData = true; 2298 } 2299 2300 int outerDepth = parser.getDepth(); 2301 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 2302 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2303 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2304 continue; 2305 } 2306 String tag = parser.getName(); 2307 if (TAG_NAME.equals(tag)) { 2308 type = parser.next(); 2309 if (type == XmlPullParser.TEXT) { 2310 name = parser.getText(); 2311 } 2312 } else if (TAG_RESTRICTIONS.equals(tag)) { 2313 baseRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2314 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 2315 localRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2316 } else if (TAG_DEVICE_POLICY_GLOBAL_RESTRICTIONS.equals(tag)) { 2317 globalRestrictions = UserRestrictionsUtils.readRestrictions(parser); 2318 } else if (TAG_ACCOUNT.equals(tag)) { 2319 type = parser.next(); 2320 if (type == XmlPullParser.TEXT) { 2321 account = parser.getText(); 2322 } 2323 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 2324 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 2325 persistSeedData = true; 2326 } 2327 } 2328 } 2329 2330 // Create the UserInfo object that gets passed around 2331 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 2332 userInfo.serialNumber = serialNumber; 2333 userInfo.creationTime = creationTime; 2334 userInfo.lastLoggedInTime = lastLoggedInTime; 2335 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 2336 userInfo.partial = partial; 2337 userInfo.guestToRemove = guestToRemove; 2338 userInfo.profileGroupId = profileGroupId; 2339 userInfo.profileBadge = profileBadge; 2340 userInfo.restrictedProfileParentId = restrictedProfileParentId; 2341 2342 // Create the UserData object that's internal to this class 2343 UserData userData = new UserData(); 2344 userData.info = userInfo; 2345 userData.account = account; 2346 userData.seedAccountName = seedAccountName; 2347 userData.seedAccountType = seedAccountType; 2348 userData.persistSeedData = persistSeedData; 2349 userData.seedAccountOptions = seedAccountOptions; 2350 2351 synchronized (mRestrictionsLock) { 2352 if (baseRestrictions != null) { 2353 mBaseUserRestrictions.put(id, baseRestrictions); 2354 } 2355 if (localRestrictions != null) { 2356 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 2357 } 2358 if (globalRestrictions != null) { 2359 mDevicePolicyGlobalUserRestrictions.put(id, globalRestrictions); 2360 } 2361 } 2362 return userData; 2363 } 2364 2365 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 2366 String valueString = parser.getAttributeValue(null, attr); 2367 if (valueString == null) return defaultValue; 2368 try { 2369 return Integer.parseInt(valueString); 2370 } catch (NumberFormatException nfe) { 2371 return defaultValue; 2372 } 2373 } 2374 2375 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 2376 String valueString = parser.getAttributeValue(null, attr); 2377 if (valueString == null) return defaultValue; 2378 try { 2379 return Long.parseLong(valueString); 2380 } catch (NumberFormatException nfe) { 2381 return defaultValue; 2382 } 2383 } 2384 2385 /** 2386 * Removes the app restrictions file for a specific package and user id, if it exists. 2387 */ 2388 private static void cleanAppRestrictionsForPackageLAr(String pkg, int userId) { 2389 File dir = Environment.getUserSystemDirectory(userId); 2390 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 2391 if (resFile.exists()) { 2392 resFile.delete(); 2393 } 2394 } 2395 2396 @Override 2397 public UserInfo createProfileForUser(String name, int flags, int userId, 2398 String[] disallowedPackages) { 2399 checkManageOrCreateUsersPermission(flags); 2400 return createUserInternal(name, flags, userId, disallowedPackages); 2401 } 2402 2403 @Override 2404 public UserInfo createProfileForUserEvenWhenDisallowed(String name, int flags, int userId, 2405 String[] disallowedPackages) { 2406 checkManageOrCreateUsersPermission(flags); 2407 return createUserInternalUnchecked(name, flags, userId, disallowedPackages); 2408 } 2409 2410 @Override 2411 public boolean removeUserEvenWhenDisallowed(@UserIdInt int userHandle) { 2412 checkManageOrCreateUsersPermission("Only the system can remove users"); 2413 return removeUserUnchecked(userHandle); 2414 } 2415 2416 @Override 2417 public UserInfo createUser(String name, int flags) { 2418 checkManageOrCreateUsersPermission(flags); 2419 return createUserInternal(name, flags, UserHandle.USER_NULL); 2420 } 2421 2422 private UserInfo createUserInternal(String name, int flags, int parentId) { 2423 return createUserInternal(name, flags, parentId, null); 2424 } 2425 2426 private UserInfo createUserInternal(String name, int flags, int parentId, 2427 String[] disallowedPackages) { 2428 String restriction = ((flags & UserInfo.FLAG_MANAGED_PROFILE) != 0) 2429 ? UserManager.DISALLOW_ADD_MANAGED_PROFILE 2430 : UserManager.DISALLOW_ADD_USER; 2431 if (hasUserRestriction(restriction, UserHandle.getCallingUserId())) { 2432 Log.w(LOG_TAG, "Cannot add user. " + restriction + " is enabled."); 2433 return null; 2434 } 2435 return createUserInternalUnchecked(name, flags, parentId, disallowedPackages); 2436 } 2437 2438 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId, 2439 String[] disallowedPackages) { 2440 DeviceStorageMonitorInternal dsm = LocalServices 2441 .getService(DeviceStorageMonitorInternal.class); 2442 if (dsm.isMemoryLow()) { 2443 Log.w(LOG_TAG, "Cannot add user. Not enough space on disk."); 2444 return null; 2445 } 2446 if (ActivityManager.isLowRamDeviceStatic()) { 2447 return null; 2448 } 2449 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 2450 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 2451 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 2452 final boolean isDemo = (flags & UserInfo.FLAG_DEMO) != 0; 2453 final long ident = Binder.clearCallingIdentity(); 2454 UserInfo userInfo; 2455 UserData userData; 2456 final int userId; 2457 try { 2458 synchronized (mPackagesLock) { 2459 UserData parent = null; 2460 if (parentId != UserHandle.USER_NULL) { 2461 synchronized (mUsersLock) { 2462 parent = getUserDataLU(parentId); 2463 } 2464 if (parent == null) return null; 2465 } 2466 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 2467 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 2468 return null; 2469 } 2470 if (!isGuest && !isManagedProfile && !isDemo && isUserLimitReached()) { 2471 // If we're not adding a guest/demo user or a managed profile and the limit has 2472 // been reached, cannot add a user. 2473 return null; 2474 } 2475 // If we're adding a guest and there already exists one, bail. 2476 if (isGuest && findCurrentGuestUser() != null) { 2477 return null; 2478 } 2479 // In legacy mode, restricted profile's parent can only be the owner user 2480 if (isRestricted && !UserManager.isSplitSystemUser() 2481 && (parentId != UserHandle.USER_SYSTEM)) { 2482 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 2483 return null; 2484 } 2485 if (isRestricted && UserManager.isSplitSystemUser()) { 2486 if (parent == null) { 2487 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 2488 + "specified"); 2489 return null; 2490 } 2491 if (!parent.info.canHaveProfile()) { 2492 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 2493 + "created for the specified parent user id " + parentId); 2494 return null; 2495 } 2496 } 2497 // In split system user mode, we assign the first human user the primary flag. 2498 // And if there is no device owner, we also assign the admin flag to primary user. 2499 if (UserManager.isSplitSystemUser() 2500 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2501 flags |= UserInfo.FLAG_PRIMARY; 2502 synchronized (mUsersLock) { 2503 if (!mIsDeviceManaged) { 2504 flags |= UserInfo.FLAG_ADMIN; 2505 } 2506 } 2507 } 2508 2509 userId = getNextAvailableId(); 2510 Environment.getUserSystemDirectory(userId).mkdirs(); 2511 boolean ephemeralGuests = Resources.getSystem() 2512 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2513 2514 synchronized (mUsersLock) { 2515 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2516 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2517 || (parent != null && parent.info.isEphemeral())) { 2518 flags |= UserInfo.FLAG_EPHEMERAL; 2519 } 2520 2521 userInfo = new UserInfo(userId, name, null, flags); 2522 userInfo.serialNumber = mNextSerialNumber++; 2523 long now = System.currentTimeMillis(); 2524 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2525 userInfo.partial = true; 2526 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2527 if (isManagedProfile && parentId != UserHandle.USER_NULL) { 2528 userInfo.profileBadge = getFreeProfileBadgeLU(parentId); 2529 } 2530 userData = new UserData(); 2531 userData.info = userInfo; 2532 mUsers.put(userId, userData); 2533 } 2534 writeUserLP(userData); 2535 writeUserListLP(); 2536 if (parent != null) { 2537 if (isManagedProfile) { 2538 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2539 parent.info.profileGroupId = parent.info.id; 2540 writeUserLP(parent); 2541 } 2542 userInfo.profileGroupId = parent.info.profileGroupId; 2543 } else if (isRestricted) { 2544 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2545 parent.info.restrictedProfileParentId = parent.info.id; 2546 writeUserLP(parent); 2547 } 2548 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2549 } 2550 } 2551 } 2552 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2553 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2554 mUserDataPreparer.prepareUserData(userId, userInfo.serialNumber, 2555 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2556 mPm.createNewUser(userId, disallowedPackages); 2557 userInfo.partial = false; 2558 synchronized (mPackagesLock) { 2559 writeUserLP(userData); 2560 } 2561 updateUserIds(); 2562 Bundle restrictions = new Bundle(); 2563 if (isGuest) { 2564 synchronized (mGuestRestrictions) { 2565 restrictions.putAll(mGuestRestrictions); 2566 } 2567 } 2568 synchronized (mRestrictionsLock) { 2569 mBaseUserRestrictions.append(userId, restrictions); 2570 } 2571 mPm.onNewUserCreated(userId); 2572 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2573 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2574 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2575 android.Manifest.permission.MANAGE_USERS); 2576 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED 2577 : (isDemo ? TRON_DEMO_CREATED : TRON_USER_CREATED), 1); 2578 } finally { 2579 Binder.restoreCallingIdentity(ident); 2580 } 2581 return userInfo; 2582 } 2583 2584 @VisibleForTesting 2585 UserData putUserInfo(UserInfo userInfo) { 2586 final UserData userData = new UserData(); 2587 userData.info = userInfo; 2588 synchronized (mUsers) { 2589 mUsers.put(userInfo.id, userData); 2590 } 2591 return userData; 2592 } 2593 2594 @VisibleForTesting 2595 void removeUserInfo(int userId) { 2596 synchronized (mUsers) { 2597 mUsers.remove(userId); 2598 } 2599 } 2600 2601 /** 2602 * @hide 2603 */ 2604 @Override 2605 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2606 checkManageOrCreateUsersPermission("setupRestrictedProfile"); 2607 final UserInfo user = createProfileForUser( 2608 name, UserInfo.FLAG_RESTRICTED, parentUserId, null); 2609 if (user == null) { 2610 return null; 2611 } 2612 long identity = Binder.clearCallingIdentity(); 2613 try { 2614 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2615 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2616 // the putIntForUser() will fail. 2617 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2618 android.provider.Settings.Secure.LOCATION_MODE, 2619 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2620 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2621 } finally { 2622 Binder.restoreCallingIdentity(identity); 2623 } 2624 return user; 2625 } 2626 2627 /** 2628 * Find the current guest user. If the Guest user is partial, 2629 * then do not include it in the results as it is about to die. 2630 */ 2631 private UserInfo findCurrentGuestUser() { 2632 synchronized (mUsersLock) { 2633 final int size = mUsers.size(); 2634 for (int i = 0; i < size; i++) { 2635 final UserInfo user = mUsers.valueAt(i).info; 2636 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2637 return user; 2638 } 2639 } 2640 } 2641 return null; 2642 } 2643 2644 /** 2645 * Mark this guest user for deletion to allow us to create another guest 2646 * and switch to that user before actually removing this guest. 2647 * @param userHandle the userid of the current guest 2648 * @return whether the user could be marked for deletion 2649 */ 2650 @Override 2651 public boolean markGuestForDeletion(int userHandle) { 2652 checkManageUsersPermission("Only the system can remove users"); 2653 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2654 UserManager.DISALLOW_REMOVE_USER, false)) { 2655 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2656 return false; 2657 } 2658 2659 long ident = Binder.clearCallingIdentity(); 2660 try { 2661 final UserData userData; 2662 synchronized (mPackagesLock) { 2663 synchronized (mUsersLock) { 2664 userData = mUsers.get(userHandle); 2665 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2666 return false; 2667 } 2668 } 2669 if (!userData.info.isGuest()) { 2670 return false; 2671 } 2672 // We set this to a guest user that is to be removed. This is a temporary state 2673 // where we are allowed to add new Guest users, even if this one is still not 2674 // removed. This user will still show up in getUserInfo() calls. 2675 // If we don't get around to removing this Guest user, it will be purged on next 2676 // startup. 2677 userData.info.guestToRemove = true; 2678 // Mark it as disabled, so that it isn't returned any more when 2679 // profiles are queried. 2680 userData.info.flags |= UserInfo.FLAG_DISABLED; 2681 writeUserLP(userData); 2682 } 2683 } finally { 2684 Binder.restoreCallingIdentity(ident); 2685 } 2686 return true; 2687 } 2688 2689 /** 2690 * Removes a user and all data directories created for that user. This method should be called 2691 * after the user's processes have been terminated. 2692 * @param userHandle the user's id 2693 */ 2694 @Override 2695 public boolean removeUser(int userHandle) { 2696 Slog.i(LOG_TAG, "removeUser u" + userHandle); 2697 checkManageOrCreateUsersPermission("Only the system can remove users"); 2698 2699 final boolean isManagedProfile; 2700 synchronized (mUsersLock) { 2701 UserInfo userInfo = getUserInfoLU(userHandle); 2702 isManagedProfile = userInfo != null && userInfo.isManagedProfile(); 2703 } 2704 String restriction = isManagedProfile 2705 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE : UserManager.DISALLOW_REMOVE_USER; 2706 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean(restriction, false)) { 2707 Log.w(LOG_TAG, "Cannot remove user. " + restriction + " is enabled."); 2708 return false; 2709 } 2710 return removeUserUnchecked(userHandle); 2711 } 2712 2713 private boolean removeUserUnchecked(int userHandle) { 2714 long ident = Binder.clearCallingIdentity(); 2715 try { 2716 final UserData userData; 2717 int currentUser = ActivityManager.getCurrentUser(); 2718 if (currentUser == userHandle) { 2719 Log.w(LOG_TAG, "Current user cannot be removed"); 2720 return false; 2721 } 2722 synchronized (mPackagesLock) { 2723 synchronized (mUsersLock) { 2724 userData = mUsers.get(userHandle); 2725 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2726 return false; 2727 } 2728 2729 addRemovingUserIdLocked(userHandle); 2730 } 2731 2732 // Set this to a partially created user, so that the user will be purged 2733 // on next startup, in case the runtime stops now before stopping and 2734 // removing the user completely. 2735 userData.info.partial = true; 2736 // Mark it as disabled, so that it isn't returned any more when 2737 // profiles are queried. 2738 userData.info.flags |= UserInfo.FLAG_DISABLED; 2739 writeUserLP(userData); 2740 } 2741 try { 2742 mAppOpsService.removeUser(userHandle); 2743 } catch (RemoteException e) { 2744 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2745 } 2746 2747 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2748 && userData.info.isManagedProfile()) { 2749 // Send broadcast to notify system that the user removed was a 2750 // managed user. 2751 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2752 } 2753 2754 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2755 int res; 2756 try { 2757 res = ActivityManager.getService().stopUser(userHandle, /* force= */ true, 2758 new IStopUserCallback.Stub() { 2759 @Override 2760 public void userStopped(int userId) { 2761 finishRemoveUser(userId); 2762 } 2763 @Override 2764 public void userStopAborted(int userId) { 2765 } 2766 }); 2767 } catch (RemoteException e) { 2768 return false; 2769 } 2770 return res == ActivityManager.USER_OP_SUCCESS; 2771 } finally { 2772 Binder.restoreCallingIdentity(ident); 2773 } 2774 } 2775 2776 @VisibleForTesting 2777 void addRemovingUserIdLocked(int userId) { 2778 // We remember deleted user IDs to prevent them from being 2779 // reused during the current boot; they can still be reused 2780 // after a reboot or recycling of userIds. 2781 mRemovingUserIds.put(userId, true); 2782 mRecentlyRemovedIds.add(userId); 2783 // Keep LRU queue of recently removed IDs for recycling 2784 if (mRecentlyRemovedIds.size() > MAX_RECENTLY_REMOVED_IDS_SIZE) { 2785 mRecentlyRemovedIds.removeFirst(); 2786 } 2787 } 2788 2789 void finishRemoveUser(final int userHandle) { 2790 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2791 // Let other services shutdown any activity and clean up their state before completely 2792 // wiping the user's system directory and removing from the user list 2793 long ident = Binder.clearCallingIdentity(); 2794 try { 2795 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2796 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2797 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2798 android.Manifest.permission.MANAGE_USERS, 2799 2800 new BroadcastReceiver() { 2801 @Override 2802 public void onReceive(Context context, Intent intent) { 2803 if (DBG) { 2804 Slog.i(LOG_TAG, 2805 "USER_REMOVED broadcast sent, cleaning up user data " 2806 + userHandle); 2807 } 2808 new Thread() { 2809 @Override 2810 public void run() { 2811 // Clean up any ActivityManager state 2812 LocalServices.getService(ActivityManagerInternal.class) 2813 .onUserRemoved(userHandle); 2814 removeUserState(userHandle); 2815 } 2816 }.start(); 2817 } 2818 }, 2819 2820 null, Activity.RESULT_OK, null, null); 2821 } finally { 2822 Binder.restoreCallingIdentity(ident); 2823 } 2824 } 2825 2826 private void removeUserState(final int userHandle) { 2827 try { 2828 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2829 } catch (IllegalStateException e) { 2830 // This may be simply because the user was partially created. 2831 Slog.i(LOG_TAG, 2832 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2833 } 2834 2835 // Cleanup gatekeeper secure user id 2836 try { 2837 final IGateKeeperService gk = GateKeeper.getService(); 2838 if (gk != null) { 2839 gk.clearSecureUserId(userHandle); 2840 } 2841 } catch (Exception ex) { 2842 Slog.w(LOG_TAG, "unable to clear GK secure user id"); 2843 } 2844 2845 // Cleanup package manager settings 2846 mPm.cleanUpUser(this, userHandle); 2847 2848 // Clean up all data before removing metadata 2849 mUserDataPreparer.destroyUserData(userHandle, 2850 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2851 2852 // Remove this user from the list 2853 synchronized (mUsersLock) { 2854 mUsers.remove(userHandle); 2855 mIsUserManaged.delete(userHandle); 2856 } 2857 synchronized (mUserStates) { 2858 mUserStates.delete(userHandle); 2859 } 2860 synchronized (mRestrictionsLock) { 2861 mBaseUserRestrictions.remove(userHandle); 2862 mAppliedUserRestrictions.remove(userHandle); 2863 mCachedEffectiveUserRestrictions.remove(userHandle); 2864 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2865 if (mDevicePolicyGlobalUserRestrictions.get(userHandle) != null) { 2866 mDevicePolicyGlobalUserRestrictions.remove(userHandle); 2867 applyUserRestrictionsForAllUsersLR(); 2868 } 2869 } 2870 // Update the user list 2871 synchronized (mPackagesLock) { 2872 writeUserListLP(); 2873 } 2874 // Remove user file 2875 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2876 userFile.delete(); 2877 updateUserIds(); 2878 if (RELEASE_DELETED_USER_ID) { 2879 synchronized (mUsers) { 2880 mRemovingUserIds.delete(userHandle); 2881 } 2882 } 2883 } 2884 2885 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2886 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2887 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2888 Intent.FLAG_RECEIVER_FOREGROUND); 2889 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2890 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2891 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2892 } 2893 2894 @Override 2895 public Bundle getApplicationRestrictions(String packageName) { 2896 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2897 } 2898 2899 @Override 2900 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2901 if (UserHandle.getCallingUserId() != userId 2902 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2903 checkSystemOrRoot("get application restrictions for other user/app " + packageName); 2904 } 2905 synchronized (mAppRestrictionsLock) { 2906 // Read the restrictions from XML 2907 return readApplicationRestrictionsLAr(packageName, userId); 2908 } 2909 } 2910 2911 @Override 2912 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2913 int userId) { 2914 checkSystemOrRoot("set application restrictions"); 2915 if (restrictions != null) { 2916 restrictions.setDefusable(true); 2917 } 2918 synchronized (mAppRestrictionsLock) { 2919 if (restrictions == null || restrictions.isEmpty()) { 2920 cleanAppRestrictionsForPackageLAr(packageName, userId); 2921 } else { 2922 // Write the restrictions to XML 2923 writeApplicationRestrictionsLAr(packageName, restrictions, userId); 2924 } 2925 } 2926 2927 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2928 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2929 changeIntent.setPackage(packageName); 2930 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2931 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2932 } 2933 2934 private int getUidForPackage(String packageName) { 2935 long ident = Binder.clearCallingIdentity(); 2936 try { 2937 return mContext.getPackageManager().getApplicationInfo(packageName, 2938 PackageManager.MATCH_ANY_USER).uid; 2939 } catch (NameNotFoundException nnfe) { 2940 return -1; 2941 } finally { 2942 Binder.restoreCallingIdentity(ident); 2943 } 2944 } 2945 2946 @GuardedBy("mAppRestrictionsLock") 2947 private static Bundle readApplicationRestrictionsLAr(String packageName, int userId) { 2948 AtomicFile restrictionsFile = 2949 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2950 packageToRestrictionsFileName(packageName))); 2951 return readApplicationRestrictionsLAr(restrictionsFile); 2952 } 2953 2954 @VisibleForTesting 2955 @GuardedBy("mAppRestrictionsLock") 2956 static Bundle readApplicationRestrictionsLAr(AtomicFile restrictionsFile) { 2957 final Bundle restrictions = new Bundle(); 2958 final ArrayList<String> values = new ArrayList<>(); 2959 if (!restrictionsFile.getBaseFile().exists()) { 2960 return restrictions; 2961 } 2962 2963 FileInputStream fis = null; 2964 try { 2965 fis = restrictionsFile.openRead(); 2966 XmlPullParser parser = Xml.newPullParser(); 2967 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2968 XmlUtils.nextElement(parser); 2969 if (parser.getEventType() != XmlPullParser.START_TAG) { 2970 Slog.e(LOG_TAG, "Unable to read restrictions file " 2971 + restrictionsFile.getBaseFile()); 2972 return restrictions; 2973 } 2974 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2975 readEntry(restrictions, values, parser); 2976 } 2977 } catch (IOException|XmlPullParserException e) { 2978 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2979 } finally { 2980 IoUtils.closeQuietly(fis); 2981 } 2982 return restrictions; 2983 } 2984 2985 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2986 XmlPullParser parser) throws XmlPullParserException, IOException { 2987 int type = parser.getEventType(); 2988 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2989 String key = parser.getAttributeValue(null, ATTR_KEY); 2990 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2991 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2992 if (multiple != null) { 2993 values.clear(); 2994 int count = Integer.parseInt(multiple); 2995 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2996 if (type == XmlPullParser.START_TAG 2997 && parser.getName().equals(TAG_VALUE)) { 2998 values.add(parser.nextText().trim()); 2999 count--; 3000 } 3001 } 3002 String [] valueStrings = new String[values.size()]; 3003 values.toArray(valueStrings); 3004 restrictions.putStringArray(key, valueStrings); 3005 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 3006 restrictions.putBundle(key, readBundleEntry(parser, values)); 3007 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 3008 final int outerDepth = parser.getDepth(); 3009 ArrayList<Bundle> bundleList = new ArrayList<>(); 3010 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 3011 Bundle childBundle = readBundleEntry(parser, values); 3012 bundleList.add(childBundle); 3013 } 3014 restrictions.putParcelableArray(key, 3015 bundleList.toArray(new Bundle[bundleList.size()])); 3016 } else { 3017 String value = parser.nextText().trim(); 3018 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 3019 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 3020 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 3021 restrictions.putInt(key, Integer.parseInt(value)); 3022 } else { 3023 restrictions.putString(key, value); 3024 } 3025 } 3026 } 3027 } 3028 3029 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 3030 throws IOException, XmlPullParserException { 3031 Bundle childBundle = new Bundle(); 3032 final int outerDepth = parser.getDepth(); 3033 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 3034 readEntry(childBundle, values, parser); 3035 } 3036 return childBundle; 3037 } 3038 3039 @GuardedBy("mAppRestrictionsLock") 3040 private static void writeApplicationRestrictionsLAr(String packageName, 3041 Bundle restrictions, int userId) { 3042 AtomicFile restrictionsFile = new AtomicFile( 3043 new File(Environment.getUserSystemDirectory(userId), 3044 packageToRestrictionsFileName(packageName))); 3045 writeApplicationRestrictionsLAr(restrictions, restrictionsFile); 3046 } 3047 3048 @VisibleForTesting 3049 @GuardedBy("mAppRestrictionsLock") 3050 static void writeApplicationRestrictionsLAr(Bundle restrictions, AtomicFile restrictionsFile) { 3051 FileOutputStream fos = null; 3052 try { 3053 fos = restrictionsFile.startWrite(); 3054 final BufferedOutputStream bos = new BufferedOutputStream(fos); 3055 3056 final XmlSerializer serializer = new FastXmlSerializer(); 3057 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 3058 serializer.startDocument(null, true); 3059 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 3060 3061 serializer.startTag(null, TAG_RESTRICTIONS); 3062 writeBundle(restrictions, serializer); 3063 serializer.endTag(null, TAG_RESTRICTIONS); 3064 3065 serializer.endDocument(); 3066 restrictionsFile.finishWrite(fos); 3067 } catch (Exception e) { 3068 restrictionsFile.failWrite(fos); 3069 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 3070 } 3071 } 3072 3073 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 3074 throws IOException { 3075 for (String key : restrictions.keySet()) { 3076 Object value = restrictions.get(key); 3077 serializer.startTag(null, TAG_ENTRY); 3078 serializer.attribute(null, ATTR_KEY, key); 3079 3080 if (value instanceof Boolean) { 3081 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 3082 serializer.text(value.toString()); 3083 } else if (value instanceof Integer) { 3084 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 3085 serializer.text(value.toString()); 3086 } else if (value == null || value instanceof String) { 3087 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 3088 serializer.text(value != null ? (String) value : ""); 3089 } else if (value instanceof Bundle) { 3090 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3091 writeBundle((Bundle) value, serializer); 3092 } else if (value instanceof Parcelable[]) { 3093 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 3094 Parcelable[] array = (Parcelable[]) value; 3095 for (Parcelable parcelable : array) { 3096 if (!(parcelable instanceof Bundle)) { 3097 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 3098 } 3099 serializer.startTag(null, TAG_ENTRY); 3100 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 3101 writeBundle((Bundle) parcelable, serializer); 3102 serializer.endTag(null, TAG_ENTRY); 3103 } 3104 } else { 3105 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 3106 String[] values = (String[]) value; 3107 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 3108 for (String choice : values) { 3109 serializer.startTag(null, TAG_VALUE); 3110 serializer.text(choice != null ? choice : ""); 3111 serializer.endTag(null, TAG_VALUE); 3112 } 3113 } 3114 serializer.endTag(null, TAG_ENTRY); 3115 } 3116 } 3117 3118 @Override 3119 public int getUserSerialNumber(int userHandle) { 3120 synchronized (mUsersLock) { 3121 if (!exists(userHandle)) return -1; 3122 return getUserInfoLU(userHandle).serialNumber; 3123 } 3124 } 3125 3126 @Override 3127 public boolean isUserNameSet(int userHandle) { 3128 synchronized (mUsersLock) { 3129 UserInfo userInfo = getUserInfoLU(userHandle); 3130 return userInfo != null && userInfo.name != null; 3131 } 3132 } 3133 3134 @Override 3135 public int getUserHandle(int userSerialNumber) { 3136 synchronized (mUsersLock) { 3137 for (int userId : mUserIds) { 3138 UserInfo info = getUserInfoLU(userId); 3139 if (info != null && info.serialNumber == userSerialNumber) return userId; 3140 } 3141 // Not found 3142 return -1; 3143 } 3144 } 3145 3146 @Override 3147 public long getUserCreationTime(int userHandle) { 3148 int callingUserId = UserHandle.getCallingUserId(); 3149 UserInfo userInfo = null; 3150 synchronized (mUsersLock) { 3151 if (callingUserId == userHandle) { 3152 userInfo = getUserInfoLU(userHandle); 3153 } else { 3154 UserInfo parent = getProfileParentLU(userHandle); 3155 if (parent != null && parent.id == callingUserId) { 3156 userInfo = getUserInfoLU(userHandle); 3157 } 3158 } 3159 } 3160 if (userInfo == null) { 3161 throw new SecurityException("userHandle can only be the calling user or a managed " 3162 + "profile associated with this user"); 3163 } 3164 return userInfo.creationTime; 3165 } 3166 3167 /** 3168 * Caches the list of user ids in an array, adjusting the array size when necessary. 3169 */ 3170 private void updateUserIds() { 3171 int num = 0; 3172 synchronized (mUsersLock) { 3173 final int userSize = mUsers.size(); 3174 for (int i = 0; i < userSize; i++) { 3175 if (!mUsers.valueAt(i).info.partial) { 3176 num++; 3177 } 3178 } 3179 final int[] newUsers = new int[num]; 3180 int n = 0; 3181 for (int i = 0; i < userSize; i++) { 3182 if (!mUsers.valueAt(i).info.partial) { 3183 newUsers[n++] = mUsers.keyAt(i); 3184 } 3185 } 3186 mUserIds = newUsers; 3187 } 3188 } 3189 3190 /** 3191 * Called right before a user is started. This gives us a chance to prepare 3192 * app storage and apply any user restrictions. 3193 */ 3194 public void onBeforeStartUser(int userId) { 3195 UserInfo userInfo = getUserInfo(userId); 3196 if (userInfo == null) { 3197 return; 3198 } 3199 final int userSerial = userInfo.serialNumber; 3200 // Migrate only if build fingerprints mismatch 3201 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3202 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 3203 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE, migrateAppsData); 3204 3205 if (userId != UserHandle.USER_SYSTEM) { 3206 synchronized (mRestrictionsLock) { 3207 applyUserRestrictionsLR(userId); 3208 } 3209 } 3210 } 3211 3212 /** 3213 * Called right before a user is unlocked. This gives us a chance to prepare 3214 * app storage. 3215 */ 3216 public void onBeforeUnlockUser(@UserIdInt int userId) { 3217 UserInfo userInfo = getUserInfo(userId); 3218 if (userInfo == null) { 3219 return; 3220 } 3221 final int userSerial = userInfo.serialNumber; 3222 // Migrate only if build fingerprints mismatch 3223 boolean migrateAppsData = !Build.FINGERPRINT.equals(userInfo.lastLoggedInFingerprint); 3224 mUserDataPreparer.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 3225 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE, migrateAppsData); 3226 } 3227 3228 /** 3229 * Examine all users present on given mounted volume, and destroy data 3230 * belonging to users that are no longer valid, or whose user ID has been 3231 * recycled. 3232 */ 3233 void reconcileUsers(String volumeUuid) { 3234 mUserDataPreparer.reconcileUsers(volumeUuid, getUsers(true /* excludeDying */)); 3235 } 3236 3237 /** 3238 * Make a note of the last started time of a user and do some cleanup. 3239 * This is called with ActivityManagerService lock held. 3240 * @param userId the user that was just foregrounded 3241 */ 3242 public void onUserLoggedIn(@UserIdInt int userId) { 3243 UserData userData = getUserDataNoChecks(userId); 3244 if (userData == null || userData.info.partial) { 3245 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 3246 return; 3247 } 3248 3249 final long now = System.currentTimeMillis(); 3250 if (now > EPOCH_PLUS_30_YEARS) { 3251 userData.info.lastLoggedInTime = now; 3252 } 3253 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 3254 scheduleWriteUser(userData); 3255 } 3256 3257 /** 3258 * Returns the next available user id, filling in any holes in the ids. 3259 */ 3260 @VisibleForTesting 3261 int getNextAvailableId() { 3262 int nextId; 3263 synchronized (mUsersLock) { 3264 nextId = scanNextAvailableIdLocked(); 3265 if (nextId >= 0) { 3266 return nextId; 3267 } 3268 // All ids up to MAX_USER_ID were used. Remove all mRemovingUserIds, 3269 // except most recently removed 3270 if (mRemovingUserIds.size() > 0) { 3271 Slog.i(LOG_TAG, "All available IDs are used. Recycling LRU ids."); 3272 mRemovingUserIds.clear(); 3273 for (Integer recentlyRemovedId : mRecentlyRemovedIds) { 3274 mRemovingUserIds.put(recentlyRemovedId, true); 3275 } 3276 nextId = scanNextAvailableIdLocked(); 3277 } 3278 } 3279 if (nextId < 0) { 3280 throw new IllegalStateException("No user id available!"); 3281 } 3282 return nextId; 3283 } 3284 3285 private int scanNextAvailableIdLocked() { 3286 for (int i = MIN_USER_ID; i < MAX_USER_ID; i++) { 3287 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 3288 return i; 3289 } 3290 } 3291 return -1; 3292 } 3293 3294 private static String packageToRestrictionsFileName(String packageName) { 3295 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 3296 } 3297 3298 @Override 3299 public void setSeedAccountData(int userId, String accountName, String accountType, 3300 PersistableBundle accountOptions, boolean persist) { 3301 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 3302 synchronized (mPackagesLock) { 3303 final UserData userData; 3304 synchronized (mUsersLock) { 3305 userData = getUserDataLU(userId); 3306 if (userData == null) { 3307 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 3308 return; 3309 } 3310 userData.seedAccountName = accountName; 3311 userData.seedAccountType = accountType; 3312 userData.seedAccountOptions = accountOptions; 3313 userData.persistSeedData = persist; 3314 } 3315 if (persist) { 3316 writeUserLP(userData); 3317 } 3318 } 3319 } 3320 3321 @Override 3322 public String getSeedAccountName() throws RemoteException { 3323 checkManageUsersPermission("Cannot get seed account information"); 3324 synchronized (mUsersLock) { 3325 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3326 return userData.seedAccountName; 3327 } 3328 } 3329 3330 @Override 3331 public String getSeedAccountType() throws RemoteException { 3332 checkManageUsersPermission("Cannot get seed account information"); 3333 synchronized (mUsersLock) { 3334 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3335 return userData.seedAccountType; 3336 } 3337 } 3338 3339 @Override 3340 public PersistableBundle getSeedAccountOptions() throws RemoteException { 3341 checkManageUsersPermission("Cannot get seed account information"); 3342 synchronized (mUsersLock) { 3343 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 3344 return userData.seedAccountOptions; 3345 } 3346 } 3347 3348 @Override 3349 public void clearSeedAccountData() throws RemoteException { 3350 checkManageUsersPermission("Cannot clear seed account information"); 3351 synchronized (mPackagesLock) { 3352 UserData userData; 3353 synchronized (mUsersLock) { 3354 userData = getUserDataLU(UserHandle.getCallingUserId()); 3355 if (userData == null) return; 3356 userData.clearSeedAccountData(); 3357 } 3358 writeUserLP(userData); 3359 } 3360 } 3361 3362 @Override 3363 public boolean someUserHasSeedAccount(String accountName, String accountType) 3364 throws RemoteException { 3365 checkManageUsersPermission("Cannot check seed account information"); 3366 synchronized (mUsersLock) { 3367 final int userSize = mUsers.size(); 3368 for (int i = 0; i < userSize; i++) { 3369 final UserData data = mUsers.valueAt(i); 3370 if (data.info.isInitialized()) continue; 3371 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 3372 continue; 3373 } 3374 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 3375 continue; 3376 } 3377 return true; 3378 } 3379 } 3380 return false; 3381 } 3382 3383 @Override 3384 public void onShellCommand(FileDescriptor in, FileDescriptor out, 3385 FileDescriptor err, String[] args, ShellCallback callback, 3386 ResultReceiver resultReceiver) { 3387 (new Shell()).exec(this, in, out, err, args, callback, resultReceiver); 3388 } 3389 3390 int onShellCommand(Shell shell, String cmd) { 3391 if (cmd == null) { 3392 return shell.handleDefaultCommands(cmd); 3393 } 3394 3395 final PrintWriter pw = shell.getOutPrintWriter(); 3396 try { 3397 switch(cmd) { 3398 case "list": 3399 return runList(pw); 3400 } 3401 } catch (RemoteException e) { 3402 pw.println("Remote exception: " + e); 3403 } 3404 return -1; 3405 } 3406 3407 private int runList(PrintWriter pw) throws RemoteException { 3408 final IActivityManager am = ActivityManager.getService(); 3409 final List<UserInfo> users = getUsers(false); 3410 if (users == null) { 3411 pw.println("Error: couldn't get users"); 3412 return 1; 3413 } else { 3414 pw.println("Users:"); 3415 for (int i = 0; i < users.size(); i++) { 3416 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 3417 pw.println("\t" + users.get(i).toString() + running); 3418 } 3419 return 0; 3420 } 3421 } 3422 3423 @Override 3424 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3425 if (!DumpUtils.checkDumpPermission(mContext, LOG_TAG, pw)) return; 3426 3427 long now = System.currentTimeMillis(); 3428 StringBuilder sb = new StringBuilder(); 3429 synchronized (mPackagesLock) { 3430 synchronized (mUsersLock) { 3431 pw.println("Users:"); 3432 for (int i = 0; i < mUsers.size(); i++) { 3433 UserData userData = mUsers.valueAt(i); 3434 if (userData == null) { 3435 continue; 3436 } 3437 UserInfo userInfo = userData.info; 3438 final int userId = userInfo.id; 3439 pw.print(" "); pw.print(userInfo); 3440 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 3441 if (mRemovingUserIds.get(userId)) { 3442 pw.print(" <removing> "); 3443 } 3444 if (userInfo.partial) { 3445 pw.print(" <partial>"); 3446 } 3447 pw.println(); 3448 pw.print(" State: "); 3449 final int state; 3450 synchronized (mUserStates) { 3451 state = mUserStates.get(userId, -1); 3452 } 3453 pw.println(UserState.stateToString(state)); 3454 pw.print(" Created: "); 3455 if (userInfo.creationTime == 0) { 3456 pw.println("<unknown>"); 3457 } else { 3458 sb.setLength(0); 3459 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 3460 sb.append(" ago"); 3461 pw.println(sb); 3462 } 3463 pw.print(" Last logged in: "); 3464 if (userInfo.lastLoggedInTime == 0) { 3465 pw.println("<unknown>"); 3466 } else { 3467 sb.setLength(0); 3468 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 3469 sb.append(" ago"); 3470 pw.println(sb); 3471 } 3472 pw.print(" Last logged in fingerprint: "); 3473 pw.println(userInfo.lastLoggedInFingerprint); 3474 pw.print(" Has profile owner: "); 3475 pw.println(mIsUserManaged.get(userId)); 3476 pw.println(" Restrictions:"); 3477 synchronized (mRestrictionsLock) { 3478 UserRestrictionsUtils.dumpRestrictions( 3479 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 3480 pw.println(" Device policy global restrictions:"); 3481 UserRestrictionsUtils.dumpRestrictions( 3482 pw, " ", mDevicePolicyGlobalUserRestrictions.get(userInfo.id)); 3483 pw.println(" Device policy local restrictions:"); 3484 UserRestrictionsUtils.dumpRestrictions( 3485 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 3486 pw.println(" Effective restrictions:"); 3487 UserRestrictionsUtils.dumpRestrictions( 3488 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 3489 } 3490 3491 if (userData.account != null) { 3492 pw.print(" Account name: " + userData.account); 3493 pw.println(); 3494 } 3495 3496 if (userData.seedAccountName != null) { 3497 pw.print(" Seed account name: " + userData.seedAccountName); 3498 pw.println(); 3499 if (userData.seedAccountType != null) { 3500 pw.print(" account type: " + userData.seedAccountType); 3501 pw.println(); 3502 } 3503 if (userData.seedAccountOptions != null) { 3504 pw.print(" account options exist"); 3505 pw.println(); 3506 } 3507 } 3508 } 3509 } 3510 pw.println(); 3511 pw.println(" Device owner id:" + mDeviceOwnerUserId); 3512 pw.println(); 3513 pw.println(" Guest restrictions:"); 3514 synchronized (mGuestRestrictions) { 3515 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 3516 } 3517 synchronized (mUsersLock) { 3518 pw.println(); 3519 pw.println(" Device managed: " + mIsDeviceManaged); 3520 if (mRemovingUserIds.size() > 0) { 3521 pw.println(); 3522 pw.println(" Recently removed userIds: " + mRecentlyRemovedIds); 3523 } 3524 } 3525 synchronized (mUserStates) { 3526 pw.println(" Started users state: " + mUserStates); 3527 } 3528 // Dump some capabilities 3529 pw.println(); 3530 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 3531 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 3532 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 3533 com.android.internal.R.bool.config_guestUserEphemeral)); 3534 } 3535 } 3536 3537 final class MainHandler extends Handler { 3538 3539 @Override 3540 public void handleMessage(Message msg) { 3541 switch (msg.what) { 3542 case WRITE_USER_MSG: 3543 removeMessages(WRITE_USER_MSG, msg.obj); 3544 synchronized (mPackagesLock) { 3545 int userId = ((UserData) msg.obj).info.id; 3546 UserData userData = getUserDataNoChecks(userId); 3547 if (userData != null) { 3548 writeUserLP(userData); 3549 } 3550 } 3551 } 3552 } 3553 } 3554 3555 /** 3556 * @param userId 3557 * @return whether the user has been initialized yet 3558 */ 3559 boolean isUserInitialized(int userId) { 3560 return mLocalService.isUserInitialized(userId); 3561 } 3562 3563 private class LocalService extends UserManagerInternal { 3564 @Override 3565 public void setDevicePolicyUserRestrictions(int userId, @Nullable Bundle restrictions, 3566 boolean isDeviceOwner, int cameraRestrictionScope) { 3567 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, restrictions, 3568 isDeviceOwner, cameraRestrictionScope); 3569 } 3570 3571 @Override 3572 public Bundle getBaseUserRestrictions(int userId) { 3573 synchronized (mRestrictionsLock) { 3574 return mBaseUserRestrictions.get(userId); 3575 } 3576 } 3577 3578 @Override 3579 public void setBaseUserRestrictionsByDpmsForMigration( 3580 int userId, Bundle baseRestrictions) { 3581 synchronized (mRestrictionsLock) { 3582 if (updateRestrictionsIfNeededLR( 3583 userId, new Bundle(baseRestrictions), mBaseUserRestrictions)) { 3584 invalidateEffectiveUserRestrictionsLR(userId); 3585 } 3586 } 3587 3588 final UserData userData = getUserDataNoChecks(userId); 3589 synchronized (mPackagesLock) { 3590 if (userData != null) { 3591 writeUserLP(userData); 3592 } else { 3593 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3594 } 3595 } 3596 } 3597 3598 @Override 3599 public boolean getUserRestriction(int userId, String key) { 3600 return getUserRestrictions(userId).getBoolean(key); 3601 } 3602 3603 @Override 3604 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3605 synchronized (mUserRestrictionsListeners) { 3606 mUserRestrictionsListeners.add(listener); 3607 } 3608 } 3609 3610 @Override 3611 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3612 synchronized (mUserRestrictionsListeners) { 3613 mUserRestrictionsListeners.remove(listener); 3614 } 3615 } 3616 3617 @Override 3618 public void setDeviceManaged(boolean isManaged) { 3619 synchronized (mUsersLock) { 3620 mIsDeviceManaged = isManaged; 3621 } 3622 } 3623 3624 @Override 3625 public void setUserManaged(int userId, boolean isManaged) { 3626 synchronized (mUsersLock) { 3627 mIsUserManaged.put(userId, isManaged); 3628 } 3629 } 3630 3631 @Override 3632 public void setUserIcon(int userId, Bitmap bitmap) { 3633 long ident = Binder.clearCallingIdentity(); 3634 try { 3635 synchronized (mPackagesLock) { 3636 UserData userData = getUserDataNoChecks(userId); 3637 if (userData == null || userData.info.partial) { 3638 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3639 return; 3640 } 3641 writeBitmapLP(userData.info, bitmap); 3642 writeUserLP(userData); 3643 } 3644 sendUserInfoChangedBroadcast(userId); 3645 } finally { 3646 Binder.restoreCallingIdentity(ident); 3647 } 3648 } 3649 3650 @Override 3651 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3652 synchronized (mUsersLock) { 3653 mForceEphemeralUsers = forceEphemeralUsers; 3654 } 3655 } 3656 3657 @Override 3658 public void removeAllUsers() { 3659 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3660 // Remove the non-system users straight away. 3661 removeNonSystemUsers(); 3662 } else { 3663 // Switch to the system user first and then remove the other users. 3664 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3665 @Override 3666 public void onReceive(Context context, Intent intent) { 3667 int userId = 3668 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3669 if (userId != UserHandle.USER_SYSTEM) { 3670 return; 3671 } 3672 mContext.unregisterReceiver(this); 3673 removeNonSystemUsers(); 3674 } 3675 }; 3676 IntentFilter userSwitchedFilter = new IntentFilter(); 3677 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3678 mContext.registerReceiver( 3679 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3680 3681 // Switch to the system user. 3682 ActivityManager am = 3683 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3684 am.switchUser(UserHandle.USER_SYSTEM); 3685 } 3686 } 3687 3688 @Override 3689 public void onEphemeralUserStop(int userId) { 3690 synchronized (mUsersLock) { 3691 UserInfo userInfo = getUserInfoLU(userId); 3692 if (userInfo != null && userInfo.isEphemeral()) { 3693 // Do not allow switching back to the ephemeral user again as the user is going 3694 // to be deleted. 3695 userInfo.flags |= UserInfo.FLAG_DISABLED; 3696 if (userInfo.isGuest()) { 3697 // Indicate that the guest will be deleted after it stops. 3698 userInfo.guestToRemove = true; 3699 } 3700 } 3701 } 3702 } 3703 3704 @Override 3705 public UserInfo createUserEvenWhenDisallowed(String name, int flags, 3706 String[] disallowedPackages) { 3707 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL, 3708 disallowedPackages); 3709 // Keep this in sync with UserManager.createUser 3710 if (user != null && !user.isAdmin() && !user.isDemo()) { 3711 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3712 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3713 } 3714 return user; 3715 } 3716 3717 @Override 3718 public boolean removeUserEvenWhenDisallowed(int userId) { 3719 return removeUserUnchecked(userId); 3720 } 3721 3722 @Override 3723 public boolean isUserRunning(int userId) { 3724 synchronized (mUserStates) { 3725 return mUserStates.get(userId, -1) >= 0; 3726 } 3727 } 3728 3729 @Override 3730 public void setUserState(int userId, int userState) { 3731 synchronized (mUserStates) { 3732 mUserStates.put(userId, userState); 3733 } 3734 } 3735 3736 @Override 3737 public void removeUserState(int userId) { 3738 synchronized (mUserStates) { 3739 mUserStates.delete(userId); 3740 } 3741 } 3742 3743 @Override 3744 public int[] getUserIds() { 3745 return UserManagerService.this.getUserIds(); 3746 } 3747 3748 @Override 3749 public boolean isUserUnlockingOrUnlocked(int userId) { 3750 int state; 3751 synchronized (mUserStates) { 3752 state = mUserStates.get(userId, -1); 3753 } 3754 // Special case, in the stopping/shutdown state user key can still be unlocked 3755 if (state == UserState.STATE_STOPPING || state == UserState.STATE_SHUTDOWN) { 3756 return StorageManager.isUserKeyUnlocked(userId); 3757 } 3758 return (state == UserState.STATE_RUNNING_UNLOCKING) 3759 || (state == UserState.STATE_RUNNING_UNLOCKED); 3760 } 3761 3762 @Override 3763 public boolean isUserUnlocked(int userId) { 3764 int state; 3765 synchronized (mUserStates) { 3766 state = mUserStates.get(userId, -1); 3767 } 3768 // Special case, in the stopping/shutdown state user key can still be unlocked 3769 if (state == UserState.STATE_STOPPING || state == UserState.STATE_SHUTDOWN) { 3770 return StorageManager.isUserKeyUnlocked(userId); 3771 } 3772 return state == UserState.STATE_RUNNING_UNLOCKED; 3773 } 3774 3775 @Override 3776 public boolean isUserInitialized(int userId) { 3777 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3778 } 3779 3780 @Override 3781 public boolean exists(int userId) { 3782 return getUserInfoNoChecks(userId) != null; 3783 } 3784 } 3785 3786 /* Remove all the users except of the system one. */ 3787 private void removeNonSystemUsers() { 3788 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3789 synchronized (mUsersLock) { 3790 final int userSize = mUsers.size(); 3791 for (int i = 0; i < userSize; i++) { 3792 UserInfo ui = mUsers.valueAt(i).info; 3793 if (ui.id != UserHandle.USER_SYSTEM) { 3794 usersToRemove.add(ui); 3795 } 3796 } 3797 } 3798 for (UserInfo ui: usersToRemove) { 3799 removeUser(ui.id); 3800 } 3801 } 3802 3803 private class Shell extends ShellCommand { 3804 @Override 3805 public int onCommand(String cmd) { 3806 return onShellCommand(this, cmd); 3807 } 3808 3809 @Override 3810 public void onHelp() { 3811 final PrintWriter pw = getOutPrintWriter(); 3812 pw.println("User manager (user) commands:"); 3813 pw.println(" help"); 3814 pw.println(" Print this help text."); 3815 pw.println(""); 3816 pw.println(" list"); 3817 pw.println(" Prints all users on the system."); 3818 } 3819 } 3820 3821 private static void debug(String message) { 3822 Log.d(LOG_TAG, message + 3823 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3824 } 3825 3826 @VisibleForTesting 3827 static int getMaxManagedProfiles() { 3828 // Allow overriding max managed profiles on debuggable builds for testing 3829 // of multiple profiles. 3830 if (!Build.IS_DEBUGGABLE) { 3831 return MAX_MANAGED_PROFILES; 3832 } else { 3833 return SystemProperties.getInt("persist.sys.max_profiles", 3834 MAX_MANAGED_PROFILES); 3835 } 3836 } 3837 3838 @VisibleForTesting 3839 int getFreeProfileBadgeLU(int parentUserId) { 3840 int maxManagedProfiles = getMaxManagedProfiles(); 3841 boolean[] usedBadges = new boolean[maxManagedProfiles]; 3842 final int userSize = mUsers.size(); 3843 for (int i = 0; i < userSize; i++) { 3844 UserInfo ui = mUsers.valueAt(i).info; 3845 // Check which badge indexes are already used by this profile group. 3846 if (ui.isManagedProfile() 3847 && ui.profileGroupId == parentUserId 3848 && !mRemovingUserIds.get(ui.id) 3849 && ui.profileBadge < maxManagedProfiles) { 3850 usedBadges[ui.profileBadge] = true; 3851 } 3852 } 3853 for (int i = 0; i < maxManagedProfiles; i++) { 3854 if (!usedBadges[i]) { 3855 return i; 3856 } 3857 } 3858 return 0; 3859 } 3860 3861 /** 3862 * Checks if the given user has a managed profile associated with it. 3863 * @param userId The parent user 3864 * @return 3865 */ 3866 boolean hasManagedProfile(int userId) { 3867 synchronized (mUsersLock) { 3868 UserInfo userInfo = getUserInfoLU(userId); 3869 final int userSize = mUsers.size(); 3870 for (int i = 0; i < userSize; i++) { 3871 UserInfo profile = mUsers.valueAt(i).info; 3872 if (userId != profile.id && isProfileOf(userInfo, profile)) { 3873 return true; 3874 } 3875 } 3876 return false; 3877 } 3878 } 3879} 3880