UserManagerService.java revision 1fae502824dfb77a109fedd80dad61fe094d8284
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 android.annotation.NonNull; 20import android.annotation.Nullable; 21import android.app.Activity; 22import android.app.ActivityManager; 23import android.app.ActivityManagerInternal; 24import android.app.ActivityManagerNative; 25import android.app.IActivityManager; 26import android.app.IStopUserCallback; 27import android.app.admin.DevicePolicyManager; 28import android.content.BroadcastReceiver; 29import android.content.Context; 30import android.content.Intent; 31import android.content.pm.ApplicationInfo; 32import android.content.pm.PackageManager; 33import android.content.pm.PackageManager.NameNotFoundException; 34import android.content.pm.UserInfo; 35import android.graphics.Bitmap; 36import android.os.Binder; 37import android.os.Bundle; 38import android.os.Debug; 39import android.os.Environment; 40import android.os.FileUtils; 41import android.os.Handler; 42import android.os.IUserManager; 43import android.os.Message; 44import android.os.ParcelFileDescriptor; 45import android.os.Parcelable; 46import android.os.Process; 47import android.os.RemoteException; 48import android.os.ResultReceiver; 49import android.os.ServiceManager; 50import android.os.ShellCommand; 51import android.os.UserHandle; 52import android.os.UserManager; 53import android.os.UserManagerInternal; 54import android.os.UserManagerInternal.UserRestrictionsListener; 55import android.os.storage.StorageManager; 56import android.os.storage.VolumeInfo; 57import android.system.ErrnoException; 58import android.system.Os; 59import android.system.OsConstants; 60import android.util.AtomicFile; 61import android.util.Log; 62import android.util.Slog; 63import android.util.SparseArray; 64import android.util.SparseBooleanArray; 65import android.util.TimeUtils; 66import android.util.Xml; 67 68import com.android.internal.annotations.GuardedBy; 69import com.android.internal.annotations.VisibleForTesting; 70import com.android.internal.app.IAppOpsService; 71import com.android.internal.util.FastXmlSerializer; 72import com.android.internal.util.Preconditions; 73import com.android.internal.util.XmlUtils; 74import com.android.server.LocalServices; 75 76import org.xmlpull.v1.XmlPullParser; 77import org.xmlpull.v1.XmlPullParserException; 78import org.xmlpull.v1.XmlSerializer; 79 80import java.io.BufferedOutputStream; 81import java.io.File; 82import java.io.FileDescriptor; 83import java.io.FileInputStream; 84import java.io.FileNotFoundException; 85import java.io.FileOutputStream; 86import java.io.IOException; 87import java.io.PrintWriter; 88import java.nio.charset.StandardCharsets; 89import java.util.ArrayList; 90import java.util.List; 91 92import libcore.io.IoUtils; 93 94/** 95 * Service for {@link UserManager}. 96 * 97 * Method naming convention: 98 * <ul> 99 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 100 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 101 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 102 * </ul> 103 */ 104public class UserManagerService extends IUserManager.Stub { 105 private static final String LOG_TAG = "UserManagerService"; 106 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 107 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 108 109 private static final String TAG_NAME = "name"; 110 private static final String ATTR_FLAGS = "flags"; 111 private static final String ATTR_ICON_PATH = "icon"; 112 private static final String ATTR_ID = "id"; 113 private static final String ATTR_CREATION_TIME = "created"; 114 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 115 private static final String ATTR_SERIAL_NO = "serialNumber"; 116 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 117 private static final String ATTR_PARTIAL = "partial"; 118 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 119 private static final String ATTR_USER_VERSION = "version"; 120 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 121 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 122 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 123 private static final String TAG_USERS = "users"; 124 private static final String TAG_USER = "user"; 125 private static final String TAG_RESTRICTIONS = "restrictions"; 126 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 127 private static final String TAG_ENTRY = "entry"; 128 private static final String TAG_VALUE = "value"; 129 private static final String ATTR_KEY = "key"; 130 private static final String ATTR_VALUE_TYPE = "type"; 131 private static final String ATTR_MULTIPLE = "m"; 132 133 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 134 private static final String ATTR_TYPE_STRING = "s"; 135 private static final String ATTR_TYPE_BOOLEAN = "b"; 136 private static final String ATTR_TYPE_INTEGER = "i"; 137 private static final String ATTR_TYPE_BUNDLE = "B"; 138 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 139 140 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 141 private static final String USER_LIST_FILENAME = "userlist.xml"; 142 private static final String USER_PHOTO_FILENAME = "photo.png"; 143 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 144 145 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 146 private static final String XML_SUFFIX = ".xml"; 147 148 private static final int MIN_USER_ID = 10; 149 // We need to keep process uid within Integer.MAX_VALUE. 150 private static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 151 152 private static final int USER_VERSION = 6; 153 154 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 155 156 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 157 // without first making sure that the rest of the framework is prepared for it. 158 private static final int MAX_MANAGED_PROFILES = 1; 159 160 static final int WRITE_USER_MSG = 1; 161 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 162 163 private static final String XATTR_SERIAL = "user.serial"; 164 165 private final Context mContext; 166 private final PackageManagerService mPm; 167 private final Object mPackagesLock; 168 // Short-term lock for internal state, when interaction/sync with PM is not required 169 private final Object mUsersLock = new Object(); 170 private final Object mRestrictionsLock = new Object(); 171 172 private final Handler mHandler; 173 174 private final File mUsersDir; 175 private final File mUserListFile; 176 177 @GuardedBy("mUsersLock") 178 private final SparseArray<UserInfo> mUsers = new SparseArray<>(); 179 180 /** 181 * User restrictions set via UserManager. This doesn't include restrictions set by 182 * device owner / profile owners. 183 * 184 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 185 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 186 * maybe shared between {@link #mBaseUserRestrictions} and 187 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 188 * (Otherwise we won't be able to detect what restrictions have changed in 189 * {@link #updateUserRestrictionsInternalLR}. 190 */ 191 @GuardedBy("mRestrictionsLock") 192 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 193 194 /** 195 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 196 * with device / profile owner restrictions. We'll initialize it lazily; use 197 * {@link #getEffectiveUserRestrictions} to access it. 198 * 199 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 200 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 201 * maybe shared between {@link #mBaseUserRestrictions} and 202 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 203 * (Otherwise we won't be able to detect what restrictions have changed in 204 * {@link #updateUserRestrictionsInternalLR}. 205 */ 206 @GuardedBy("mRestrictionsLock") 207 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 208 209 /** 210 * User restrictions that have already been applied in 211 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 212 * that have changed since the last 213 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 214 */ 215 @GuardedBy("mRestrictionsLock") 216 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 217 218 /** 219 * User restrictions set by {@link DevicePolicyManager} that should be applied to all users, 220 * including guests. 221 */ 222 @GuardedBy("mRestrictionsLock") 223 private Bundle mDevicePolicyGlobalUserRestrictions; 224 225 /** 226 * User restrictions set by {@link DevicePolicyManager} for each user. 227 */ 228 @GuardedBy("mRestrictionsLock") 229 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 230 231 @GuardedBy("mGuestRestrictions") 232 private final Bundle mGuestRestrictions = new Bundle(); 233 234 /** 235 * Set of user IDs being actively removed. Removed IDs linger in this set 236 * for several seconds to work around a VFS caching issue. 237 */ 238 @GuardedBy("mUsersLock") 239 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 240 241 @GuardedBy("mUsersLock") 242 private int[] mUserIds; 243 @GuardedBy("mPackagesLock") 244 private int mNextSerialNumber; 245 private int mUserVersion = 0; 246 247 private IAppOpsService mAppOpsService; 248 249 private final LocalService mLocalService; 250 251 @GuardedBy("mUserRestrictionsListeners") 252 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 253 new ArrayList<>(); 254 255 private static UserManagerService sInstance; 256 257 public static UserManagerService getInstance() { 258 synchronized (UserManagerService.class) { 259 return sInstance; 260 } 261 } 262 263 @VisibleForTesting 264 UserManagerService(File dataDir) { 265 this(null, null, new Object(), dataDir); 266 } 267 268 /** 269 * Called by package manager to create the service. This is closely 270 * associated with the package manager, and the given lock is the 271 * package manager's own lock. 272 */ 273 UserManagerService(Context context, PackageManagerService pm, Object packagesLock) { 274 this(context, pm, packagesLock, Environment.getDataDirectory()); 275 } 276 277 private UserManagerService(Context context, PackageManagerService pm, 278 Object packagesLock, File dataDir) { 279 mContext = context; 280 mPm = pm; 281 mPackagesLock = packagesLock; 282 mHandler = new MainHandler(); 283 synchronized (mPackagesLock) { 284 mUsersDir = new File(dataDir, USER_INFO_DIR); 285 mUsersDir.mkdirs(); 286 // Make zeroth user directory, for services to migrate their files to that location 287 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 288 userZeroDir.mkdirs(); 289 FileUtils.setPermissions(mUsersDir.toString(), 290 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 291 -1, -1); 292 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 293 initDefaultGuestRestrictions(); 294 readUserListLP(); 295 sInstance = this; 296 } 297 mLocalService = new LocalService(); 298 LocalServices.addService(UserManagerInternal.class, mLocalService); 299 } 300 301 void systemReady() { 302 // Prune out any partially created/partially removed users. 303 ArrayList<UserInfo> partials = new ArrayList<>(); 304 synchronized (mUsersLock) { 305 final int userSize = mUsers.size(); 306 for (int i = 0; i < userSize; i++) { 307 UserInfo ui = mUsers.valueAt(i); 308 if ((ui.partial || ui.guestToRemove) && i != 0) { 309 partials.add(ui); 310 } 311 } 312 } 313 final int partialsSize = partials.size(); 314 for (int i = 0; i < partialsSize; i++) { 315 UserInfo ui = partials.get(i); 316 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 317 + " (name=" + ui.name + ")"); 318 removeUserState(ui.id); 319 } 320 321 onUserForeground(UserHandle.USER_SYSTEM); 322 323 mAppOpsService = IAppOpsService.Stub.asInterface( 324 ServiceManager.getService(Context.APP_OPS_SERVICE)); 325 326 synchronized (mRestrictionsLock) { 327 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 328 } 329 } 330 331 @Override 332 public UserInfo getPrimaryUser() { 333 checkManageUsersPermission("query users"); 334 synchronized (mUsersLock) { 335 final int userSize = mUsers.size(); 336 for (int i = 0; i < userSize; i++) { 337 UserInfo ui = mUsers.valueAt(i); 338 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 339 return ui; 340 } 341 } 342 } 343 return null; 344 } 345 346 @Override 347 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 348 checkManageUsersPermission("query users"); 349 synchronized (mUsersLock) { 350 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 351 final int userSize = mUsers.size(); 352 for (int i = 0; i < userSize; i++) { 353 UserInfo ui = mUsers.valueAt(i); 354 if (ui.partial) { 355 continue; 356 } 357 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 358 users.add(ui); 359 } 360 } 361 return users; 362 } 363 } 364 365 @Override 366 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 367 if (userId != UserHandle.getCallingUserId()) { 368 checkManageUsersPermission("getting profiles related to user " + userId); 369 } 370 final long ident = Binder.clearCallingIdentity(); 371 try { 372 synchronized (mUsersLock) { 373 return getProfilesLU(userId, enabledOnly); 374 } 375 } finally { 376 Binder.restoreCallingIdentity(ident); 377 } 378 } 379 380 /** Assume permissions already checked and caller's identity cleared */ 381 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly) { 382 UserInfo user = getUserInfoLU(userId); 383 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 384 if (user == null) { 385 // Probably a dying user 386 return users; 387 } 388 final int userSize = mUsers.size(); 389 for (int i = 0; i < userSize; i++) { 390 UserInfo profile = mUsers.valueAt(i); 391 if (!isProfileOf(user, profile)) { 392 continue; 393 } 394 if (enabledOnly && !profile.isEnabled()) { 395 continue; 396 } 397 if (mRemovingUserIds.get(profile.id)) { 398 continue; 399 } 400 users.add(profile); 401 } 402 return users; 403 } 404 405 @Override 406 public int getCredentialOwnerProfile(int userHandle) { 407 checkManageUsersPermission("get the credential owner"); 408 if (!StorageManager.isFileBasedEncryptionEnabled()) { 409 synchronized (mUsersLock) { 410 UserInfo profileParent = getProfileParentLU(userHandle); 411 if (profileParent != null) { 412 return profileParent.id; 413 } 414 } 415 } 416 417 return userHandle; 418 } 419 420 @Override 421 public boolean isSameProfileGroup(int userId, int otherUserId) { 422 if (userId == otherUserId) return true; 423 checkManageUsersPermission("check if in the same profile group"); 424 synchronized (mPackagesLock) { 425 return isSameProfileGroupLP(userId, otherUserId); 426 } 427 } 428 429 private boolean isSameProfileGroupLP(int userId, int otherUserId) { 430 synchronized (mUsersLock) { 431 UserInfo userInfo = getUserInfoLU(userId); 432 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 433 return false; 434 } 435 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 436 if (otherUserInfo == null 437 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 438 return false; 439 } 440 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 441 } 442 } 443 444 @Override 445 public UserInfo getProfileParent(int userHandle) { 446 checkManageUsersPermission("get the profile parent"); 447 synchronized (mUsersLock) { 448 return getProfileParentLU(userHandle); 449 } 450 } 451 452 private UserInfo getProfileParentLU(int userHandle) { 453 UserInfo profile = getUserInfoLU(userHandle); 454 if (profile == null) { 455 return null; 456 } 457 int parentUserId = profile.profileGroupId; 458 if (parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 459 return null; 460 } else { 461 return getUserInfoLU(parentUserId); 462 } 463 } 464 465 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 466 return user.id == profile.id || 467 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 468 && user.profileGroupId == profile.profileGroupId); 469 } 470 471 @Override 472 public void setUserEnabled(int userId) { 473 checkManageUsersPermission("enable user"); 474 synchronized (mPackagesLock) { 475 UserInfo info; 476 synchronized (mUsersLock) { 477 info = getUserInfoLU(userId); 478 } 479 if (info != null && !info.isEnabled()) { 480 info.flags ^= UserInfo.FLAG_DISABLED; 481 writeUserLP(info); 482 } 483 } 484 } 485 486 @Override 487 public UserInfo getUserInfo(int userId) { 488 checkManageUsersPermission("query user"); 489 synchronized (mUsersLock) { 490 return getUserInfoLU(userId); 491 } 492 } 493 494 @Override 495 public boolean isRestricted() { 496 synchronized (mUsersLock) { 497 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 498 } 499 } 500 501 @Override 502 public boolean canHaveRestrictedProfile(int userId) { 503 checkManageUsersPermission("canHaveRestrictedProfile"); 504 synchronized (mUsersLock) { 505 final UserInfo userInfo = getUserInfoLU(userId); 506 if (userInfo == null || !userInfo.canHaveProfile()) { 507 return false; 508 } 509 if (!userInfo.isAdmin()) { 510 return false; 511 } 512 } 513 DevicePolicyManager dpm = (DevicePolicyManager) mContext.getSystemService( 514 Context.DEVICE_POLICY_SERVICE); 515 // restricted profile can be created if there is no DO set and the admin user has no PO 516 return dpm.getDeviceOwner() == null && dpm.getProfileOwnerAsUser(userId) == null; 517 } 518 519 /* 520 * Should be locked on mUsers before calling this. 521 */ 522 private UserInfo getUserInfoLU(int userId) { 523 UserInfo ui = mUsers.get(userId); 524 // If it is partial and not in the process of being removed, return as unknown user. 525 if (ui != null && ui.partial && !mRemovingUserIds.get(userId)) { 526 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 527 return null; 528 } 529 return ui; 530 } 531 532 /** 533 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 534 * <p>No permissions checking or any addition checks are made</p> 535 */ 536 private UserInfo getUserInfoNoChecks(int userId) { 537 synchronized (mUsersLock) { 538 return mUsers.get(userId); 539 } 540 } 541 542 /** Called by PackageManagerService */ 543 public boolean exists(int userId) { 544 return getUserInfoNoChecks(userId) != null; 545 } 546 547 @Override 548 public void setUserName(int userId, String name) { 549 checkManageUsersPermission("rename users"); 550 boolean changed = false; 551 synchronized (mPackagesLock) { 552 UserInfo info = getUserInfoNoChecks(userId); 553 if (info == null || info.partial) { 554 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 555 return; 556 } 557 if (name != null && !name.equals(info.name)) { 558 info.name = name; 559 writeUserLP(info); 560 changed = true; 561 } 562 } 563 if (changed) { 564 sendUserInfoChangedBroadcast(userId); 565 } 566 } 567 568 @Override 569 public void setUserIcon(int userId, Bitmap bitmap) { 570 checkManageUsersPermission("update users"); 571 long ident = Binder.clearCallingIdentity(); 572 try { 573 synchronized (mPackagesLock) { 574 UserInfo info = getUserInfoNoChecks(userId); 575 if (info == null || info.partial) { 576 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 577 return; 578 } 579 writeBitmapLP(info, bitmap); 580 writeUserLP(info); 581 } 582 sendUserInfoChangedBroadcast(userId); 583 } finally { 584 Binder.restoreCallingIdentity(ident); 585 } 586 } 587 588 private void sendUserInfoChangedBroadcast(int userId) { 589 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 590 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 591 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 592 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 593 } 594 595 @Override 596 public ParcelFileDescriptor getUserIcon(int userId) { 597 String iconPath; 598 synchronized (mPackagesLock) { 599 UserInfo info = getUserInfoNoChecks(userId); 600 if (info == null || info.partial) { 601 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + userId); 602 return null; 603 } 604 int callingGroupId = getUserInfoNoChecks(UserHandle.getCallingUserId()).profileGroupId; 605 if (callingGroupId == UserInfo.NO_PROFILE_GROUP_ID 606 || callingGroupId != info.profileGroupId) { 607 checkManageUsersPermission("get the icon of a user who is not related"); 608 } 609 if (info.iconPath == null) { 610 return null; 611 } 612 iconPath = info.iconPath; 613 } 614 615 try { 616 return ParcelFileDescriptor.open( 617 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 618 } catch (FileNotFoundException e) { 619 Log.e(LOG_TAG, "Couldn't find icon file", e); 620 } 621 return null; 622 } 623 624 public void makeInitialized(int userId) { 625 checkManageUsersPermission("makeInitialized"); 626 boolean scheduleWriteUser = false; 627 UserInfo info; 628 synchronized (mUsersLock) { 629 info = mUsers.get(userId); 630 if (info == null || info.partial) { 631 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 632 return; 633 } 634 if ((info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 635 info.flags |= UserInfo.FLAG_INITIALIZED; 636 scheduleWriteUser = true; 637 } 638 } 639 if (scheduleWriteUser) { 640 scheduleWriteUser(info); 641 } 642 } 643 644 /** 645 * If default guest restrictions haven't been initialized yet, add the basic 646 * restrictions. 647 */ 648 private void initDefaultGuestRestrictions() { 649 synchronized (mGuestRestrictions) { 650 if (mGuestRestrictions.isEmpty()) { 651 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 652 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 653 } 654 } 655 } 656 657 @Override 658 public Bundle getDefaultGuestRestrictions() { 659 checkManageUsersPermission("getDefaultGuestRestrictions"); 660 synchronized (mGuestRestrictions) { 661 return new Bundle(mGuestRestrictions); 662 } 663 } 664 665 @Override 666 public void setDefaultGuestRestrictions(Bundle restrictions) { 667 checkManageUsersPermission("setDefaultGuestRestrictions"); 668 synchronized (mGuestRestrictions) { 669 mGuestRestrictions.clear(); 670 mGuestRestrictions.putAll(restrictions); 671 } 672 synchronized (mPackagesLock) { 673 writeUserListLP(); 674 } 675 } 676 677 /** 678 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions(int, Bundle, Bundle)} 679 */ 680 void setDevicePolicyUserRestrictions(int userId, @NonNull Bundle local, 681 @Nullable Bundle global) { 682 Preconditions.checkNotNull(local); 683 boolean globalChanged = false; 684 boolean localChanged; 685 synchronized (mRestrictionsLock) { 686 if (global != null) { 687 // Update global. 688 globalChanged = !UserRestrictionsUtils.areEqual( 689 mDevicePolicyGlobalUserRestrictions, global); 690 if (globalChanged) { 691 mDevicePolicyGlobalUserRestrictions = global; 692 } 693 } 694 { 695 // Update local. 696 final Bundle prev = mDevicePolicyLocalUserRestrictions.get(userId); 697 localChanged = !UserRestrictionsUtils.areEqual(prev, local); 698 if (localChanged) { 699 mDevicePolicyLocalUserRestrictions.put(userId, local); 700 } 701 } 702 } 703 if (DBG) { 704 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 705 + " global=" + global + (globalChanged ? " (changed)" : "") 706 + " local=" + local + (localChanged ? " (changed)" : "") 707 ); 708 } 709 // Don't call them within the mRestrictionsLock. 710 synchronized (mPackagesLock) { 711 if (globalChanged) { 712 writeUserListLP(); 713 } 714 if (localChanged) { 715 writeUserLP(getUserInfoNoChecks(userId)); 716 } 717 } 718 719 synchronized (mRestrictionsLock) { 720 if (globalChanged) { 721 applyUserRestrictionsForAllUsersLR(); 722 } else if (localChanged) { 723 applyUserRestrictionsLR(userId); 724 } 725 } 726 } 727 728 @GuardedBy("mRestrictionsLock") 729 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 730 final Bundle baseRestrictions = 731 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 732 final Bundle global = mDevicePolicyGlobalUserRestrictions; 733 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 734 735 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 736 // Common case first. 737 return baseRestrictions; 738 } 739 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 740 UserRestrictionsUtils.merge(effective, global); 741 UserRestrictionsUtils.merge(effective, local); 742 743 return effective; 744 } 745 746 @GuardedBy("mRestrictionsLock") 747 private void invalidateEffectiveUserRestrictionsLR(int userId) { 748 if (DBG) { 749 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 750 } 751 mCachedEffectiveUserRestrictions.remove(userId); 752 } 753 754 private Bundle getEffectiveUserRestrictions(int userId) { 755 synchronized (mRestrictionsLock) { 756 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 757 if (restrictions == null) { 758 restrictions = computeEffectiveUserRestrictionsLR(userId); 759 mCachedEffectiveUserRestrictions.put(userId, restrictions); 760 } 761 return restrictions; 762 } 763 } 764 765 /** @return a specific user restriction that's in effect currently. */ 766 @Override 767 public boolean hasUserRestriction(String restrictionKey, int userId) { 768 Bundle restrictions = getEffectiveUserRestrictions(userId); 769 return restrictions != null && restrictions.getBoolean(restrictionKey); 770 } 771 772 /** 773 * @return UserRestrictions that are in effect currently. This always returns a new 774 * {@link Bundle}. 775 */ 776 @Override 777 public Bundle getUserRestrictions(int userId) { 778 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 779 } 780 781 @Override 782 public void setUserRestriction(String key, boolean value, int userId) { 783 checkManageUsersPermission("setUserRestriction"); 784 if (!UserRestrictionsUtils.isSystemControlled(key)) { 785 setUserRestrictionNoCheck(key, value, userId); 786 } 787 } 788 789 @Override 790 public void setSystemControlledUserRestriction(String key, boolean value, int userId) { 791 checkSystemOrRoot("setSystemControlledUserRestriction"); 792 setUserRestrictionNoCheck(key, value, userId); 793 } 794 795 private void setUserRestrictionNoCheck(String key, boolean value, int userId) { 796 synchronized (mRestrictionsLock) { 797 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 798 // a copy. 799 final Bundle newRestrictions = UserRestrictionsUtils.clone( 800 mBaseUserRestrictions.get(userId)); 801 newRestrictions.putBoolean(key, value); 802 803 updateUserRestrictionsInternalLR(newRestrictions, userId); 804 } 805 } 806 807 /** 808 * Optionally updating user restrictions, calculate the effective user restrictions and also 809 * propagate to other services and system settings. 810 * 811 * @param newRestrictions User restrictions to set. 812 * If null, will not update user restrictions and only does the propagation. 813 * @param userId target user ID. 814 */ 815 @GuardedBy("mRestrictionsLock") 816 private void updateUserRestrictionsInternalLR( 817 @Nullable Bundle newRestrictions, int userId) { 818 819 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 820 mAppliedUserRestrictions.get(userId)); 821 822 // Update base restrictions. 823 if (newRestrictions != null) { 824 // If newRestrictions == the current one, it's probably a bug. 825 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 826 827 Preconditions.checkState(prevBaseRestrictions != newRestrictions); 828 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 829 != newRestrictions); 830 831 if (!UserRestrictionsUtils.areEqual(prevBaseRestrictions, newRestrictions)) { 832 mBaseUserRestrictions.put(userId, newRestrictions); 833 scheduleWriteUser(getUserInfoNoChecks(userId)); 834 } 835 } 836 837 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 838 839 mCachedEffectiveUserRestrictions.put(userId, effective); 840 841 // Apply the new restrictions. 842 if (DBG) { 843 debug("Applying user restrictions: userId=" + userId 844 + " new=" + effective + " prev=" + prevAppliedRestrictions); 845 } 846 847 if (mAppOpsService != null) { // We skip it until system-ready. 848 final long token = Binder.clearCallingIdentity(); 849 try { 850 mAppOpsService.setUserRestrictions(effective, userId); 851 } catch (RemoteException e) { 852 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 853 } finally { 854 Binder.restoreCallingIdentity(token); 855 } 856 } 857 858 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 859 860 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 861 } 862 863 private void propagateUserRestrictionsLR(final int userId, 864 Bundle newRestrictions, Bundle prevRestrictions) { 865 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 866 // actually, but we still need some kind of synchronization otherwise we might end up 867 // calling listeners out-of-order, thus "LR". 868 869 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 870 return; 871 } 872 873 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 874 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 875 876 mHandler.post(new Runnable() { 877 @Override 878 public void run() { 879 synchronized (mRestrictionsLock) { 880 UserRestrictionsUtils.applyUserRestrictionsLR( 881 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 882 } 883 884 final UserRestrictionsListener[] listeners; 885 synchronized (mUserRestrictionsListeners) { 886 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 887 mUserRestrictionsListeners.toArray(listeners); 888 } 889 for (int i = 0; i < listeners.length; i++) { 890 listeners[i].onUserRestrictionsChanged(userId, 891 newRestrictionsFinal, prevRestrictionsFinal); 892 } 893 } 894 }); 895 } 896 897 // Package private for the inner class. 898 void applyUserRestrictionsLR(int userId) { 899 updateUserRestrictionsInternalLR(null, userId); 900 } 901 902 @GuardedBy("mRestrictionsLock") 903 // Package private for the inner class. 904 void applyUserRestrictionsForAllUsersLR() { 905 if (DBG) { 906 debug("applyUserRestrictionsForAllUsersLR"); 907 } 908 // First, invalidate all cached values. 909 mCachedEffectiveUserRestrictions.clear(); 910 911 // We don't want to call into ActivityManagerNative while taking a lock, so we'll call 912 // it on a handler. 913 final Runnable r = new Runnable() { 914 @Override 915 public void run() { 916 // Then get the list of running users. 917 final int[] runningUsers; 918 try { 919 runningUsers = ActivityManagerNative.getDefault().getRunningUserIds(); 920 } catch (RemoteException e) { 921 Log.w(LOG_TAG, "Unable to access ActivityManagerNative"); 922 return; 923 } 924 // Then re-calculate the effective restrictions and apply, only for running users. 925 // It's okay if a new user has started after the getRunningUserIds() call, 926 // because we'll do the same thing (re-calculate the restrictions and apply) 927 // when we start a user. 928 synchronized (mRestrictionsLock) { 929 for (int i = 0; i < runningUsers.length; i++) { 930 applyUserRestrictionsLR(runningUsers[i]); 931 } 932 } 933 } 934 }; 935 mHandler.post(r); 936 } 937 938 /** 939 * Check if we've hit the limit of how many users can be created. 940 */ 941 private boolean isUserLimitReached() { 942 int count; 943 synchronized (mUsersLock) { 944 count = getAliveUsersExcludingGuestsCountLU(); 945 } 946 return count >= UserManager.getMaxSupportedUsers(); 947 } 948 949 @Override 950 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 951 checkManageUsersPermission("check if more managed profiles can be added."); 952 if (ActivityManager.isLowRamDeviceStatic()) { 953 return false; 954 } 955 if (!mContext.getPackageManager().hasSystemFeature( 956 PackageManager.FEATURE_MANAGED_USERS)) { 957 return false; 958 } 959 // Limit number of managed profiles that can be created 960 final int managedProfilesCount = getProfiles(userId, true).size() - 1; 961 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 962 if (managedProfilesCount - profilesRemovedCount >= MAX_MANAGED_PROFILES) { 963 return false; 964 } 965 synchronized(mUsersLock) { 966 UserInfo userInfo = getUserInfoLU(userId); 967 if (!userInfo.canHaveProfile()) { 968 return false; 969 } 970 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 971 - profilesRemovedCount; 972 // We allow creating a managed profile in the special case where there is only one user. 973 return usersCountAfterRemoving == 1 974 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 975 } 976 } 977 978 private int getAliveUsersExcludingGuestsCountLU() { 979 int aliveUserCount = 0; 980 final int totalUserCount = mUsers.size(); 981 // Skip over users being removed 982 for (int i = 0; i < totalUserCount; i++) { 983 UserInfo user = mUsers.valueAt(i); 984 if (!mRemovingUserIds.get(user.id) 985 && !user.isGuest() && !user.partial) { 986 aliveUserCount++; 987 } 988 } 989 return aliveUserCount; 990 } 991 992 /** 993 * Enforces that only the system UID or root's UID or apps that have the 994 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 995 * permission can make certain calls to the UserManager. 996 * 997 * @param message used as message if SecurityException is thrown 998 * @throws SecurityException if the caller is not system or root 999 */ 1000 private static final void checkManageUsersPermission(String message) { 1001 final int uid = Binder.getCallingUid(); 1002 if (uid != Process.SYSTEM_UID && uid != 0 1003 && ActivityManager.checkComponentPermission( 1004 android.Manifest.permission.MANAGE_USERS, 1005 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1006 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1007 } 1008 } 1009 1010 private static void checkSystemOrRoot(String message) { 1011 final int uid = Binder.getCallingUid(); 1012 if (uid != Process.SYSTEM_UID && uid != 0) { 1013 throw new SecurityException("Only system may call: " + message); 1014 } 1015 } 1016 1017 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1018 try { 1019 File dir = new File(mUsersDir, Integer.toString(info.id)); 1020 File file = new File(dir, USER_PHOTO_FILENAME); 1021 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1022 if (!dir.exists()) { 1023 dir.mkdir(); 1024 FileUtils.setPermissions( 1025 dir.getPath(), 1026 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1027 -1, -1); 1028 } 1029 FileOutputStream os; 1030 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1031 && tmp.renameTo(file)) { 1032 info.iconPath = file.getAbsolutePath(); 1033 } 1034 try { 1035 os.close(); 1036 } catch (IOException ioe) { 1037 // What the ... ! 1038 } 1039 tmp.delete(); 1040 } catch (FileNotFoundException e) { 1041 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1042 } 1043 } 1044 1045 /** 1046 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1047 * cache it elsewhere. 1048 * @return the array of user ids. 1049 */ 1050 public int[] getUserIds() { 1051 synchronized (mUsersLock) { 1052 return mUserIds; 1053 } 1054 } 1055 1056 private void readUserListLP() { 1057 if (!mUserListFile.exists()) { 1058 fallbackToSingleUserLP(); 1059 return; 1060 } 1061 FileInputStream fis = null; 1062 AtomicFile userListFile = new AtomicFile(mUserListFile); 1063 try { 1064 fis = userListFile.openRead(); 1065 XmlPullParser parser = Xml.newPullParser(); 1066 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1067 int type; 1068 while ((type = parser.next()) != XmlPullParser.START_TAG 1069 && type != XmlPullParser.END_DOCUMENT) { 1070 ; 1071 } 1072 1073 if (type != XmlPullParser.START_TAG) { 1074 Slog.e(LOG_TAG, "Unable to read user list"); 1075 fallbackToSingleUserLP(); 1076 return; 1077 } 1078 1079 mNextSerialNumber = -1; 1080 if (parser.getName().equals(TAG_USERS)) { 1081 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1082 if (lastSerialNumber != null) { 1083 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1084 } 1085 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1086 if (versionNumber != null) { 1087 mUserVersion = Integer.parseInt(versionNumber); 1088 } 1089 } 1090 1091 final Bundle newDevicePolicyGlobalUserRestrictions = new Bundle(); 1092 1093 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1094 if (type == XmlPullParser.START_TAG) { 1095 final String name = parser.getName(); 1096 if (name.equals(TAG_USER)) { 1097 String id = parser.getAttributeValue(null, ATTR_ID); 1098 UserInfo user = readUserLP(Integer.parseInt(id)); 1099 1100 if (user != null) { 1101 synchronized (mUsersLock) { 1102 mUsers.put(user.id, user); 1103 if (mNextSerialNumber < 0 || mNextSerialNumber <= user.id) { 1104 mNextSerialNumber = user.id + 1; 1105 } 1106 } 1107 } 1108 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1109 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1110 && type != XmlPullParser.END_TAG) { 1111 if (type == XmlPullParser.START_TAG) { 1112 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1113 synchronized (mGuestRestrictions) { 1114 UserRestrictionsUtils 1115 .readRestrictions(parser, mGuestRestrictions); 1116 } 1117 } else if (parser.getName().equals(TAG_DEVICE_POLICY_RESTRICTIONS) 1118 ) { 1119 UserRestrictionsUtils.readRestrictions(parser, 1120 newDevicePolicyGlobalUserRestrictions); 1121 } 1122 break; 1123 } 1124 } 1125 } 1126 } 1127 } 1128 synchronized (mRestrictionsLock) { 1129 mDevicePolicyGlobalUserRestrictions = newDevicePolicyGlobalUserRestrictions; 1130 } 1131 updateUserIds(); 1132 upgradeIfNecessaryLP(); 1133 } catch (IOException | XmlPullParserException e) { 1134 fallbackToSingleUserLP(); 1135 } finally { 1136 IoUtils.closeQuietly(fis); 1137 } 1138 } 1139 1140 /** 1141 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1142 */ 1143 private void upgradeIfNecessaryLP() { 1144 final int originalVersion = mUserVersion; 1145 int userVersion = mUserVersion; 1146 if (userVersion < 1) { 1147 // Assign a proper name for the owner, if not initialized correctly before 1148 UserInfo user = getUserInfoNoChecks(UserHandle.USER_SYSTEM); 1149 if ("Primary".equals(user.name)) { 1150 user.name = mContext.getResources().getString(com.android.internal.R.string.owner_name); 1151 scheduleWriteUser(user); 1152 } 1153 userVersion = 1; 1154 } 1155 1156 if (userVersion < 2) { 1157 // Owner should be marked as initialized 1158 UserInfo user = getUserInfoNoChecks(UserHandle.USER_SYSTEM); 1159 if ((user.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1160 user.flags |= UserInfo.FLAG_INITIALIZED; 1161 scheduleWriteUser(user); 1162 } 1163 userVersion = 2; 1164 } 1165 1166 1167 if (userVersion < 4) { 1168 userVersion = 4; 1169 } 1170 1171 if (userVersion < 5) { 1172 initDefaultGuestRestrictions(); 1173 userVersion = 5; 1174 } 1175 1176 if (userVersion < 6) { 1177 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1178 synchronized (mUsersLock) { 1179 for (int i = 0; i < mUsers.size(); i++) { 1180 UserInfo user = mUsers.valueAt(i); 1181 // In non-split mode, only user 0 can have restricted profiles 1182 if (!splitSystemUser && user.isRestricted() 1183 && (user.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID)) { 1184 user.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1185 scheduleWriteUser(user); 1186 } 1187 } 1188 } 1189 userVersion = 6; 1190 } 1191 1192 if (userVersion < USER_VERSION) { 1193 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1194 + USER_VERSION); 1195 } else { 1196 mUserVersion = userVersion; 1197 1198 if (originalVersion < mUserVersion) { 1199 writeUserListLP(); 1200 } 1201 } 1202 } 1203 1204 private void fallbackToSingleUserLP() { 1205 int flags = UserInfo.FLAG_INITIALIZED; 1206 // In split system user mode, the admin and primary flags are assigned to the first human 1207 // user. 1208 if (!UserManager.isSplitSystemUser()) { 1209 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1210 } 1211 // Create the system user 1212 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, 1213 mContext.getResources().getString(com.android.internal.R.string.owner_name), null, 1214 flags); 1215 synchronized (mUsersLock) { 1216 mUsers.put(system.id, system); 1217 } 1218 mNextSerialNumber = MIN_USER_ID; 1219 mUserVersion = USER_VERSION; 1220 1221 Bundle restrictions = new Bundle(); 1222 synchronized (mRestrictionsLock) { 1223 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1224 } 1225 1226 updateUserIds(); 1227 initDefaultGuestRestrictions(); 1228 1229 writeUserListLP(); 1230 writeUserLP(system); 1231 } 1232 1233 private void scheduleWriteUser(UserInfo userInfo) { 1234 if (DBG) { 1235 debug("scheduleWriteUser"); 1236 } 1237 // No need to wrap it within a lock -- worst case, we'll just post the same message 1238 // twice. 1239 if (!mHandler.hasMessages(WRITE_USER_MSG, userInfo)) { 1240 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, userInfo); 1241 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1242 } 1243 } 1244 1245 /* 1246 * Writes the user file in this format: 1247 * 1248 * <user flags="20039023" id="0"> 1249 * <name>Primary</name> 1250 * </user> 1251 */ 1252 private void writeUserLP(UserInfo userInfo) { 1253 if (DBG) { 1254 debug("writeUserLP " + userInfo); 1255 } 1256 FileOutputStream fos = null; 1257 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userInfo.id + XML_SUFFIX)); 1258 try { 1259 fos = userFile.startWrite(); 1260 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1261 1262 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1263 final XmlSerializer serializer = new FastXmlSerializer(); 1264 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1265 serializer.startDocument(null, true); 1266 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1267 1268 serializer.startTag(null, TAG_USER); 1269 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 1270 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 1271 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 1272 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 1273 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 1274 Long.toString(userInfo.lastLoggedInTime)); 1275 if (userInfo.iconPath != null) { 1276 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 1277 } 1278 if (userInfo.partial) { 1279 serializer.attribute(null, ATTR_PARTIAL, "true"); 1280 } 1281 if (userInfo.guestToRemove) { 1282 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 1283 } 1284 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 1285 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 1286 Integer.toString(userInfo.profileGroupId)); 1287 } 1288 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 1289 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 1290 Integer.toString(userInfo.restrictedProfileParentId)); 1291 } 1292 serializer.startTag(null, TAG_NAME); 1293 serializer.text(userInfo.name); 1294 serializer.endTag(null, TAG_NAME); 1295 synchronized (mRestrictionsLock) { 1296 UserRestrictionsUtils.writeRestrictions(serializer, 1297 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 1298 UserRestrictionsUtils.writeRestrictions(serializer, 1299 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 1300 TAG_DEVICE_POLICY_RESTRICTIONS); 1301 } 1302 serializer.endTag(null, TAG_USER); 1303 1304 serializer.endDocument(); 1305 userFile.finishWrite(fos); 1306 } catch (Exception ioe) { 1307 Slog.e(LOG_TAG, "Error writing user info " + userInfo.id + "\n" + ioe); 1308 userFile.failWrite(fos); 1309 } 1310 } 1311 1312 /* 1313 * Writes the user list file in this format: 1314 * 1315 * <users nextSerialNumber="3"> 1316 * <user id="0"></user> 1317 * <user id="2"></user> 1318 * </users> 1319 */ 1320 private void writeUserListLP() { 1321 if (DBG) { 1322 debug("writeUserList"); 1323 } 1324 FileOutputStream fos = null; 1325 AtomicFile userListFile = new AtomicFile(mUserListFile); 1326 try { 1327 fos = userListFile.startWrite(); 1328 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1329 1330 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1331 final XmlSerializer serializer = new FastXmlSerializer(); 1332 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1333 serializer.startDocument(null, true); 1334 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1335 1336 serializer.startTag(null, TAG_USERS); 1337 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 1338 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 1339 1340 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 1341 synchronized (mGuestRestrictions) { 1342 UserRestrictionsUtils 1343 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 1344 } 1345 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 1346 synchronized (mRestrictionsLock) { 1347 UserRestrictionsUtils.writeRestrictions(serializer, 1348 mDevicePolicyGlobalUserRestrictions, TAG_DEVICE_POLICY_RESTRICTIONS); 1349 } 1350 int[] userIdsToWrite; 1351 synchronized (mUsersLock) { 1352 userIdsToWrite = new int[mUsers.size()]; 1353 for (int i = 0; i < userIdsToWrite.length; i++) { 1354 UserInfo user = mUsers.valueAt(i); 1355 userIdsToWrite[i] = user.id; 1356 } 1357 } 1358 for (int id : userIdsToWrite) { 1359 serializer.startTag(null, TAG_USER); 1360 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 1361 serializer.endTag(null, TAG_USER); 1362 } 1363 1364 serializer.endTag(null, TAG_USERS); 1365 1366 serializer.endDocument(); 1367 userListFile.finishWrite(fos); 1368 } catch (Exception e) { 1369 userListFile.failWrite(fos); 1370 Slog.e(LOG_TAG, "Error writing user list"); 1371 } 1372 } 1373 1374 private UserInfo readUserLP(int id) { 1375 int flags = 0; 1376 int serialNumber = id; 1377 String name = null; 1378 String iconPath = null; 1379 long creationTime = 0L; 1380 long lastLoggedInTime = 0L; 1381 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 1382 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 1383 boolean partial = false; 1384 boolean guestToRemove = false; 1385 Bundle baseRestrictions = new Bundle(); 1386 Bundle localRestrictions = new Bundle(); 1387 1388 FileInputStream fis = null; 1389 try { 1390 AtomicFile userFile = 1391 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 1392 fis = userFile.openRead(); 1393 XmlPullParser parser = Xml.newPullParser(); 1394 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1395 int type; 1396 while ((type = parser.next()) != XmlPullParser.START_TAG 1397 && type != XmlPullParser.END_DOCUMENT) { 1398 ; 1399 } 1400 1401 if (type != XmlPullParser.START_TAG) { 1402 Slog.e(LOG_TAG, "Unable to read user " + id); 1403 return null; 1404 } 1405 1406 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 1407 int storedId = readIntAttribute(parser, ATTR_ID, -1); 1408 if (storedId != id) { 1409 Slog.e(LOG_TAG, "User id does not match the file name"); 1410 return null; 1411 } 1412 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 1413 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 1414 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 1415 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 1416 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 1417 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 1418 UserInfo.NO_PROFILE_GROUP_ID); 1419 restrictedProfileParentId = readIntAttribute(parser, 1420 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 1421 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 1422 if ("true".equals(valueString)) { 1423 partial = true; 1424 } 1425 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 1426 if ("true".equals(valueString)) { 1427 guestToRemove = true; 1428 } 1429 1430 int outerDepth = parser.getDepth(); 1431 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1432 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1433 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1434 continue; 1435 } 1436 String tag = parser.getName(); 1437 if (TAG_NAME.equals(tag)) { 1438 type = parser.next(); 1439 if (type == XmlPullParser.TEXT) { 1440 name = parser.getText(); 1441 } 1442 } else if (TAG_RESTRICTIONS.equals(tag)) { 1443 UserRestrictionsUtils.readRestrictions(parser, baseRestrictions); 1444 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 1445 UserRestrictionsUtils.readRestrictions(parser, localRestrictions); 1446 } 1447 } 1448 } 1449 1450 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 1451 userInfo.serialNumber = serialNumber; 1452 userInfo.creationTime = creationTime; 1453 userInfo.lastLoggedInTime = lastLoggedInTime; 1454 userInfo.partial = partial; 1455 userInfo.guestToRemove = guestToRemove; 1456 userInfo.profileGroupId = profileGroupId; 1457 userInfo.restrictedProfileParentId = restrictedProfileParentId; 1458 synchronized (mRestrictionsLock) { 1459 mBaseUserRestrictions.put(id, baseRestrictions); 1460 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 1461 } 1462 return userInfo; 1463 1464 } catch (IOException ioe) { 1465 } catch (XmlPullParserException pe) { 1466 } finally { 1467 if (fis != null) { 1468 try { 1469 fis.close(); 1470 } catch (IOException e) { 1471 } 1472 } 1473 } 1474 return null; 1475 } 1476 1477 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 1478 String valueString = parser.getAttributeValue(null, attr); 1479 if (valueString == null) return defaultValue; 1480 try { 1481 return Integer.parseInt(valueString); 1482 } catch (NumberFormatException nfe) { 1483 return defaultValue; 1484 } 1485 } 1486 1487 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 1488 String valueString = parser.getAttributeValue(null, attr); 1489 if (valueString == null) return defaultValue; 1490 try { 1491 return Long.parseLong(valueString); 1492 } catch (NumberFormatException nfe) { 1493 return defaultValue; 1494 } 1495 } 1496 1497 private boolean isPackageInstalled(String pkg, int userId) { 1498 final ApplicationInfo info = mPm.getApplicationInfo(pkg, 1499 PackageManager.GET_UNINSTALLED_PACKAGES, 1500 userId); 1501 if (info == null || (info.flags&ApplicationInfo.FLAG_INSTALLED) == 0) { 1502 return false; 1503 } 1504 return true; 1505 } 1506 1507 /** 1508 * Removes all the restrictions files (res_<packagename>) for a given user. 1509 * Does not do any permissions checking. 1510 */ 1511 private void cleanAppRestrictions(int userId) { 1512 synchronized (mPackagesLock) { 1513 File dir = Environment.getUserSystemDirectory(userId); 1514 String[] files = dir.list(); 1515 if (files == null) return; 1516 for (String fileName : files) { 1517 if (fileName.startsWith(RESTRICTIONS_FILE_PREFIX)) { 1518 File resFile = new File(dir, fileName); 1519 if (resFile.exists()) { 1520 resFile.delete(); 1521 } 1522 } 1523 } 1524 } 1525 } 1526 1527 /** 1528 * Removes the app restrictions file for a specific package and user id, if it exists. 1529 */ 1530 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 1531 synchronized (mPackagesLock) { 1532 File dir = Environment.getUserSystemDirectory(userId); 1533 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 1534 if (resFile.exists()) { 1535 resFile.delete(); 1536 } 1537 } 1538 } 1539 1540 @Override 1541 public UserInfo createProfileForUser(String name, int flags, int userId) { 1542 checkManageUsersPermission("Only the system can create users"); 1543 return createUserInternal(name, flags, userId); 1544 } 1545 1546 @Override 1547 public UserInfo createUser(String name, int flags) { 1548 checkManageUsersPermission("Only the system can create users"); 1549 return createUserInternal(name, flags, UserHandle.USER_NULL); 1550 } 1551 1552 private UserInfo createUserInternal(String name, int flags, int parentId) { 1553 if (hasUserRestriction(UserManager.DISALLOW_ADD_USER, UserHandle.getCallingUserId())) { 1554 Log.w(LOG_TAG, "Cannot add user. DISALLOW_ADD_USER is enabled."); 1555 return null; 1556 } 1557 if (ActivityManager.isLowRamDeviceStatic()) { 1558 return null; 1559 } 1560 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 1561 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 1562 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 1563 final long ident = Binder.clearCallingIdentity(); 1564 UserInfo userInfo; 1565 final int userId; 1566 try { 1567 synchronized (mPackagesLock) { 1568 UserInfo parent = null; 1569 if (parentId != UserHandle.USER_NULL) { 1570 synchronized (mUsersLock) { 1571 parent = getUserInfoLU(parentId); 1572 } 1573 if (parent == null) return null; 1574 } 1575 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 1576 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 1577 return null; 1578 } 1579 if (!isGuest && !isManagedProfile && isUserLimitReached()) { 1580 // If we're not adding a guest user or a managed profile and the limit has 1581 // been reached, cannot add a user. 1582 return null; 1583 } 1584 // If we're adding a guest and there already exists one, bail. 1585 if (isGuest && findCurrentGuestUser() != null) { 1586 return null; 1587 } 1588 // In legacy mode, restricted profile's parent can only be the owner user 1589 if (isRestricted && !UserManager.isSplitSystemUser() 1590 && (parentId != UserHandle.USER_SYSTEM)) { 1591 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 1592 return null; 1593 } 1594 if (isRestricted && UserManager.isSplitSystemUser()) { 1595 if (parent == null) { 1596 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 1597 + "specified"); 1598 return null; 1599 } 1600 if (!parent.canHaveProfile()) { 1601 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 1602 + "created for the specified parent user id " + parentId); 1603 return null; 1604 } 1605 } 1606 // In split system user mode, we assign the first human user the primary flag. 1607 // And if there is no device owner, we also assign the admin flag to primary user. 1608 if (UserManager.isSplitSystemUser() 1609 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 1610 flags |= UserInfo.FLAG_PRIMARY; 1611 DevicePolicyManager devicePolicyManager = (DevicePolicyManager) 1612 mContext.getSystemService(Context.DEVICE_POLICY_SERVICE); 1613 if (devicePolicyManager == null 1614 || devicePolicyManager.getDeviceOwner() == null) { 1615 flags |= UserInfo.FLAG_ADMIN; 1616 } 1617 } 1618 userId = getNextAvailableId(); 1619 userInfo = new UserInfo(userId, name, null, flags); 1620 userInfo.serialNumber = mNextSerialNumber++; 1621 long now = System.currentTimeMillis(); 1622 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 1623 userInfo.partial = true; 1624 Environment.getUserSystemDirectory(userInfo.id).mkdirs(); 1625 synchronized (mUsersLock) { 1626 mUsers.put(userId, userInfo); 1627 } 1628 writeUserListLP(); 1629 if (parent != null) { 1630 if (isManagedProfile) { 1631 if (parent.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 1632 parent.profileGroupId = parent.id; 1633 writeUserLP(parent); 1634 } 1635 userInfo.profileGroupId = parent.profileGroupId; 1636 } else if (isRestricted) { 1637 if (parent.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 1638 parent.restrictedProfileParentId = parent.id; 1639 writeUserLP(parent); 1640 } 1641 userInfo.restrictedProfileParentId = parent.restrictedProfileParentId; 1642 } 1643 } 1644 } 1645 final StorageManager storage = mContext.getSystemService(StorageManager.class); 1646 storage.createUserKey(userId, userInfo.serialNumber); 1647 for (VolumeInfo vol : storage.getWritablePrivateVolumes()) { 1648 final String volumeUuid = vol.getFsUuid(); 1649 try { 1650 final File userDir = Environment.getDataUserDirectory(volumeUuid, userId); 1651 storage.prepareUserStorage(volumeUuid, userId, userInfo.serialNumber); 1652 enforceSerialNumber(userDir, userInfo.serialNumber); 1653 } catch (IOException e) { 1654 Log.wtf(LOG_TAG, "Failed to create user directory on " + volumeUuid, e); 1655 } 1656 } 1657 mPm.createNewUser(userId); 1658 userInfo.partial = false; 1659 synchronized (mPackagesLock) { 1660 writeUserLP(userInfo); 1661 } 1662 updateUserIds(); 1663 Bundle restrictions = new Bundle(); 1664 synchronized (mRestrictionsLock) { 1665 mBaseUserRestrictions.append(userId, restrictions); 1666 } 1667 mPm.newUserCreated(userId); 1668 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 1669 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 1670 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 1671 android.Manifest.permission.MANAGE_USERS); 1672 } finally { 1673 Binder.restoreCallingIdentity(ident); 1674 } 1675 return userInfo; 1676 } 1677 1678 /** 1679 * @hide 1680 */ 1681 public UserInfo createRestrictedProfile(String name, int parentUserId) { 1682 checkManageUsersPermission("setupRestrictedProfile"); 1683 final UserInfo user = createProfileForUser(name, UserInfo.FLAG_RESTRICTED, parentUserId); 1684 if (user == null) { 1685 return null; 1686 } 1687 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 1688 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 1689 // the putIntForUser() will fail. 1690 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 1691 android.provider.Settings.Secure.LOCATION_MODE, 1692 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 1693 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 1694 return user; 1695 } 1696 1697 /** 1698 * Find the current guest user. If the Guest user is partial, 1699 * then do not include it in the results as it is about to die. 1700 */ 1701 private UserInfo findCurrentGuestUser() { 1702 synchronized (mUsersLock) { 1703 final int size = mUsers.size(); 1704 for (int i = 0; i < size; i++) { 1705 final UserInfo user = mUsers.valueAt(i); 1706 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 1707 return user; 1708 } 1709 } 1710 } 1711 return null; 1712 } 1713 1714 /** 1715 * Mark this guest user for deletion to allow us to create another guest 1716 * and switch to that user before actually removing this guest. 1717 * @param userHandle the userid of the current guest 1718 * @return whether the user could be marked for deletion 1719 */ 1720 public boolean markGuestForDeletion(int userHandle) { 1721 checkManageUsersPermission("Only the system can remove users"); 1722 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 1723 UserManager.DISALLOW_REMOVE_USER, false)) { 1724 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 1725 return false; 1726 } 1727 1728 long ident = Binder.clearCallingIdentity(); 1729 try { 1730 final UserInfo user; 1731 synchronized (mPackagesLock) { 1732 synchronized (mUsersLock) { 1733 user = mUsers.get(userHandle); 1734 if (userHandle == 0 || user == null || mRemovingUserIds.get(userHandle)) { 1735 return false; 1736 } 1737 } 1738 if (!user.isGuest()) { 1739 return false; 1740 } 1741 // We set this to a guest user that is to be removed. This is a temporary state 1742 // where we are allowed to add new Guest users, even if this one is still not 1743 // removed. This user will still show up in getUserInfo() calls. 1744 // If we don't get around to removing this Guest user, it will be purged on next 1745 // startup. 1746 user.guestToRemove = true; 1747 // Mark it as disabled, so that it isn't returned any more when 1748 // profiles are queried. 1749 user.flags |= UserInfo.FLAG_DISABLED; 1750 writeUserLP(user); 1751 } 1752 } finally { 1753 Binder.restoreCallingIdentity(ident); 1754 } 1755 return true; 1756 } 1757 1758 /** 1759 * Removes a user and all data directories created for that user. This method should be called 1760 * after the user's processes have been terminated. 1761 * @param userHandle the user's id 1762 */ 1763 public boolean removeUser(int userHandle) { 1764 checkManageUsersPermission("Only the system can remove users"); 1765 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 1766 UserManager.DISALLOW_REMOVE_USER, false)) { 1767 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 1768 return false; 1769 } 1770 1771 long ident = Binder.clearCallingIdentity(); 1772 try { 1773 final UserInfo user; 1774 int currentUser = ActivityManager.getCurrentUser(); 1775 if (currentUser == userHandle) { 1776 Log.w(LOG_TAG, "Current user cannot be removed"); 1777 return false; 1778 } 1779 synchronized (mPackagesLock) { 1780 synchronized (mUsersLock) { 1781 user = mUsers.get(userHandle); 1782 if (userHandle == 0 || user == null || mRemovingUserIds.get(userHandle)) { 1783 return false; 1784 } 1785 1786 // We remember deleted user IDs to prevent them from being 1787 // reused during the current boot; they can still be reused 1788 // after a reboot. 1789 mRemovingUserIds.put(userHandle, true); 1790 } 1791 1792 try { 1793 mAppOpsService.removeUser(userHandle); 1794 } catch (RemoteException e) { 1795 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 1796 } 1797 // Set this to a partially created user, so that the user will be purged 1798 // on next startup, in case the runtime stops now before stopping and 1799 // removing the user completely. 1800 user.partial = true; 1801 // Mark it as disabled, so that it isn't returned any more when 1802 // profiles are queried. 1803 user.flags |= UserInfo.FLAG_DISABLED; 1804 writeUserLP(user); 1805 } 1806 1807 if (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 1808 && user.isManagedProfile()) { 1809 // Send broadcast to notify system that the user removed was a 1810 // managed user. 1811 sendProfileRemovedBroadcast(user.profileGroupId, user.id); 1812 } 1813 1814 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 1815 int res; 1816 try { 1817 res = ActivityManagerNative.getDefault().stopUser(userHandle, 1818 new IStopUserCallback.Stub() { 1819 @Override 1820 public void userStopped(int userId) { 1821 finishRemoveUser(userId); 1822 } 1823 @Override 1824 public void userStopAborted(int userId) { 1825 } 1826 }); 1827 } catch (RemoteException e) { 1828 return false; 1829 } 1830 return res == ActivityManager.USER_OP_SUCCESS; 1831 } finally { 1832 Binder.restoreCallingIdentity(ident); 1833 } 1834 } 1835 1836 void finishRemoveUser(final int userHandle) { 1837 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 1838 // Let other services shutdown any activity and clean up their state before completely 1839 // wiping the user's system directory and removing from the user list 1840 long ident = Binder.clearCallingIdentity(); 1841 try { 1842 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 1843 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 1844 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 1845 android.Manifest.permission.MANAGE_USERS, 1846 1847 new BroadcastReceiver() { 1848 @Override 1849 public void onReceive(Context context, Intent intent) { 1850 if (DBG) { 1851 Slog.i(LOG_TAG, 1852 "USER_REMOVED broadcast sent, cleaning up user data " 1853 + userHandle); 1854 } 1855 new Thread() { 1856 public void run() { 1857 // Clean up any ActivityManager state 1858 LocalServices.getService(ActivityManagerInternal.class) 1859 .onUserRemoved(userHandle); 1860 removeUserState(userHandle); 1861 } 1862 }.start(); 1863 } 1864 }, 1865 1866 null, Activity.RESULT_OK, null, null); 1867 } finally { 1868 Binder.restoreCallingIdentity(ident); 1869 } 1870 } 1871 1872 private void removeUserState(final int userHandle) { 1873 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 1874 // Cleanup package manager settings 1875 mPm.cleanUpUser(this, userHandle); 1876 1877 // Remove this user from the list 1878 synchronized (mUsersLock) { 1879 mUsers.remove(userHandle); 1880 } 1881 // Remove user file 1882 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 1883 userFile.delete(); 1884 // Update the user list 1885 synchronized (mPackagesLock) { 1886 writeUserListLP(); 1887 } 1888 updateUserIds(); 1889 removeDirectoryRecursive(Environment.getUserSystemDirectory(userHandle)); 1890 } 1891 1892 private void removeDirectoryRecursive(File parent) { 1893 if (parent.isDirectory()) { 1894 String[] files = parent.list(); 1895 for (String filename : files) { 1896 File child = new File(parent, filename); 1897 removeDirectoryRecursive(child); 1898 } 1899 } 1900 parent.delete(); 1901 } 1902 1903 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 1904 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 1905 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 1906 Intent.FLAG_RECEIVER_FOREGROUND); 1907 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 1908 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 1909 } 1910 1911 @Override 1912 public Bundle getApplicationRestrictions(String packageName) { 1913 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 1914 } 1915 1916 @Override 1917 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 1918 if (UserHandle.getCallingUserId() != userId 1919 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 1920 checkManageUsersPermission("get application restrictions for other users/apps"); 1921 } 1922 synchronized (mPackagesLock) { 1923 // Read the restrictions from XML 1924 return readApplicationRestrictionsLP(packageName, userId); 1925 } 1926 } 1927 1928 @Override 1929 public void setApplicationRestrictions(String packageName, Bundle restrictions, 1930 int userId) { 1931 checkManageUsersPermission("set application restrictions"); 1932 synchronized (mPackagesLock) { 1933 if (restrictions == null || restrictions.isEmpty()) { 1934 cleanAppRestrictionsForPackage(packageName, userId); 1935 } else { 1936 // Write the restrictions to XML 1937 writeApplicationRestrictionsLP(packageName, restrictions, userId); 1938 } 1939 } 1940 1941 if (isPackageInstalled(packageName, userId)) { 1942 // Notify package of changes via an intent - only sent to explicitly registered receivers. 1943 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 1944 changeIntent.setPackage(packageName); 1945 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1946 mContext.sendBroadcastAsUser(changeIntent, new UserHandle(userId)); 1947 } 1948 } 1949 1950 private void unhideAllInstalledAppsForUser(final int userHandle) { 1951 mHandler.post(new Runnable() { 1952 @Override 1953 public void run() { 1954 List<ApplicationInfo> apps = 1955 mPm.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES, 1956 userHandle).getList(); 1957 final long ident = Binder.clearCallingIdentity(); 1958 try { 1959 for (ApplicationInfo appInfo : apps) { 1960 if ((appInfo.flags & ApplicationInfo.FLAG_INSTALLED) != 0 1961 && (appInfo.privateFlags & ApplicationInfo.PRIVATE_FLAG_HIDDEN) 1962 != 0) { 1963 mPm.setApplicationHiddenSettingAsUser(appInfo.packageName, false, 1964 userHandle); 1965 } 1966 } 1967 } finally { 1968 Binder.restoreCallingIdentity(ident); 1969 } 1970 } 1971 }); 1972 } 1973 private int getUidForPackage(String packageName) { 1974 long ident = Binder.clearCallingIdentity(); 1975 try { 1976 return mContext.getPackageManager().getApplicationInfo(packageName, 1977 PackageManager.GET_UNINSTALLED_PACKAGES).uid; 1978 } catch (NameNotFoundException nnfe) { 1979 return -1; 1980 } finally { 1981 Binder.restoreCallingIdentity(ident); 1982 } 1983 } 1984 1985 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 1986 AtomicFile restrictionsFile = 1987 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 1988 packageToRestrictionsFileName(packageName))); 1989 return readApplicationRestrictionsLP(restrictionsFile); 1990 } 1991 1992 @VisibleForTesting 1993 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 1994 final Bundle restrictions = new Bundle(); 1995 final ArrayList<String> values = new ArrayList<>(); 1996 if (!restrictionsFile.getBaseFile().exists()) { 1997 return restrictions; 1998 } 1999 2000 FileInputStream fis = null; 2001 try { 2002 fis = restrictionsFile.openRead(); 2003 XmlPullParser parser = Xml.newPullParser(); 2004 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2005 XmlUtils.nextElement(parser); 2006 if (parser.getEventType() != XmlPullParser.START_TAG) { 2007 Slog.e(LOG_TAG, "Unable to read restrictions file " 2008 + restrictionsFile.getBaseFile()); 2009 return restrictions; 2010 } 2011 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2012 readEntry(restrictions, values, parser); 2013 } 2014 } catch (IOException|XmlPullParserException e) { 2015 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2016 } finally { 2017 IoUtils.closeQuietly(fis); 2018 } 2019 return restrictions; 2020 } 2021 2022 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2023 XmlPullParser parser) throws XmlPullParserException, IOException { 2024 int type = parser.getEventType(); 2025 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2026 String key = parser.getAttributeValue(null, ATTR_KEY); 2027 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2028 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2029 if (multiple != null) { 2030 values.clear(); 2031 int count = Integer.parseInt(multiple); 2032 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2033 if (type == XmlPullParser.START_TAG 2034 && parser.getName().equals(TAG_VALUE)) { 2035 values.add(parser.nextText().trim()); 2036 count--; 2037 } 2038 } 2039 String [] valueStrings = new String[values.size()]; 2040 values.toArray(valueStrings); 2041 restrictions.putStringArray(key, valueStrings); 2042 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2043 restrictions.putBundle(key, readBundleEntry(parser, values)); 2044 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2045 final int outerDepth = parser.getDepth(); 2046 ArrayList<Bundle> bundleList = new ArrayList<>(); 2047 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2048 Bundle childBundle = readBundleEntry(parser, values); 2049 bundleList.add(childBundle); 2050 } 2051 restrictions.putParcelableArray(key, 2052 bundleList.toArray(new Bundle[bundleList.size()])); 2053 } else { 2054 String value = parser.nextText().trim(); 2055 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2056 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2057 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2058 restrictions.putInt(key, Integer.parseInt(value)); 2059 } else { 2060 restrictions.putString(key, value); 2061 } 2062 } 2063 } 2064 } 2065 2066 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2067 throws IOException, XmlPullParserException { 2068 Bundle childBundle = new Bundle(); 2069 final int outerDepth = parser.getDepth(); 2070 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2071 readEntry(childBundle, values, parser); 2072 } 2073 return childBundle; 2074 } 2075 2076 private void writeApplicationRestrictionsLP(String packageName, 2077 Bundle restrictions, int userId) { 2078 AtomicFile restrictionsFile = new AtomicFile( 2079 new File(Environment.getUserSystemDirectory(userId), 2080 packageToRestrictionsFileName(packageName))); 2081 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 2082 } 2083 2084 @VisibleForTesting 2085 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 2086 FileOutputStream fos = null; 2087 try { 2088 fos = restrictionsFile.startWrite(); 2089 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2090 2091 final XmlSerializer serializer = new FastXmlSerializer(); 2092 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2093 serializer.startDocument(null, true); 2094 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2095 2096 serializer.startTag(null, TAG_RESTRICTIONS); 2097 writeBundle(restrictions, serializer); 2098 serializer.endTag(null, TAG_RESTRICTIONS); 2099 2100 serializer.endDocument(); 2101 restrictionsFile.finishWrite(fos); 2102 } catch (Exception e) { 2103 restrictionsFile.failWrite(fos); 2104 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 2105 } 2106 } 2107 2108 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 2109 throws IOException { 2110 for (String key : restrictions.keySet()) { 2111 Object value = restrictions.get(key); 2112 serializer.startTag(null, TAG_ENTRY); 2113 serializer.attribute(null, ATTR_KEY, key); 2114 2115 if (value instanceof Boolean) { 2116 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 2117 serializer.text(value.toString()); 2118 } else if (value instanceof Integer) { 2119 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 2120 serializer.text(value.toString()); 2121 } else if (value == null || value instanceof String) { 2122 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 2123 serializer.text(value != null ? (String) value : ""); 2124 } else if (value instanceof Bundle) { 2125 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2126 writeBundle((Bundle) value, serializer); 2127 } else if (value instanceof Parcelable[]) { 2128 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 2129 Parcelable[] array = (Parcelable[]) value; 2130 for (Parcelable parcelable : array) { 2131 if (!(parcelable instanceof Bundle)) { 2132 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 2133 } 2134 serializer.startTag(null, TAG_ENTRY); 2135 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2136 writeBundle((Bundle) parcelable, serializer); 2137 serializer.endTag(null, TAG_ENTRY); 2138 } 2139 } else { 2140 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 2141 String[] values = (String[]) value; 2142 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 2143 for (String choice : values) { 2144 serializer.startTag(null, TAG_VALUE); 2145 serializer.text(choice != null ? choice : ""); 2146 serializer.endTag(null, TAG_VALUE); 2147 } 2148 } 2149 serializer.endTag(null, TAG_ENTRY); 2150 } 2151 } 2152 2153 @Override 2154 public int getUserSerialNumber(int userHandle) { 2155 synchronized (mUsersLock) { 2156 if (!exists(userHandle)) return -1; 2157 return getUserInfoLU(userHandle).serialNumber; 2158 } 2159 } 2160 2161 @Override 2162 public int getUserHandle(int userSerialNumber) { 2163 synchronized (mUsersLock) { 2164 for (int userId : mUserIds) { 2165 UserInfo info = getUserInfoLU(userId); 2166 if (info != null && info.serialNumber == userSerialNumber) return userId; 2167 } 2168 // Not found 2169 return -1; 2170 } 2171 } 2172 2173 @Override 2174 public long getUserCreationTime(int userHandle) { 2175 int callingUserId = UserHandle.getCallingUserId(); 2176 UserInfo userInfo = null; 2177 synchronized (mUsersLock) { 2178 if (callingUserId == userHandle) { 2179 userInfo = getUserInfoLU(userHandle); 2180 } else { 2181 UserInfo parent = getProfileParentLU(userHandle); 2182 if (parent != null && parent.id == callingUserId) { 2183 userInfo = getUserInfoLU(userHandle); 2184 } 2185 } 2186 } 2187 if (userInfo == null) { 2188 throw new SecurityException("userHandle can only be the calling user or a managed " 2189 + "profile associated with this user"); 2190 } 2191 return userInfo.creationTime; 2192 } 2193 2194 /** 2195 * Caches the list of user ids in an array, adjusting the array size when necessary. 2196 */ 2197 private void updateUserIds() { 2198 int num = 0; 2199 synchronized (mUsersLock) { 2200 final int userSize = mUsers.size(); 2201 for (int i = 0; i < userSize; i++) { 2202 if (!mUsers.valueAt(i).partial) { 2203 num++; 2204 } 2205 } 2206 final int[] newUsers = new int[num]; 2207 int n = 0; 2208 for (int i = 0; i < userSize; i++) { 2209 if (!mUsers.valueAt(i).partial) { 2210 newUsers[n++] = mUsers.keyAt(i); 2211 } 2212 } 2213 mUserIds = newUsers; 2214 } 2215 } 2216 2217 /** 2218 * Called right before a user starts. This will not be called for the system user. 2219 */ 2220 public void onBeforeStartUser(int userId) { 2221 synchronized (mRestrictionsLock) { 2222 applyUserRestrictionsLR(userId); 2223 } 2224 } 2225 2226 /** 2227 * Make a note of the last started time of a user and do some cleanup. 2228 * @param userId the user that was just foregrounded 2229 */ 2230 public void onUserForeground(int userId) { 2231 UserInfo user = getUserInfoNoChecks(userId); 2232 if (user == null || user.partial) { 2233 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 2234 return; 2235 } 2236 long now = System.currentTimeMillis(); 2237 if (now > EPOCH_PLUS_30_YEARS) { 2238 user.lastLoggedInTime = now; 2239 scheduleWriteUser(user); 2240 } 2241 } 2242 2243 /** 2244 * Returns the next available user id, filling in any holes in the ids. 2245 * TODO: May not be a good idea to recycle ids, in case it results in confusion 2246 * for data and battery stats collection, or unexpected cross-talk. 2247 */ 2248 private int getNextAvailableId() { 2249 synchronized (mUsersLock) { 2250 int i = MIN_USER_ID; 2251 while (i < MAX_USER_ID) { 2252 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 2253 return i; 2254 } 2255 i++; 2256 } 2257 } 2258 throw new IllegalStateException("No user id available!"); 2259 } 2260 2261 private String packageToRestrictionsFileName(String packageName) { 2262 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 2263 } 2264 2265 /** 2266 * Enforce that serial number stored in user directory inode matches the 2267 * given expected value. Gracefully sets the serial number if currently 2268 * undefined. 2269 * 2270 * @throws IOException when problem extracting serial number, or serial 2271 * number is mismatched. 2272 */ 2273 public static void enforceSerialNumber(File file, int serialNumber) throws IOException { 2274 final int foundSerial = getSerialNumber(file); 2275 Slog.v(LOG_TAG, "Found " + file + " with serial number " + foundSerial); 2276 2277 if (foundSerial == -1) { 2278 Slog.d(LOG_TAG, "Serial number missing on " + file + "; assuming current is valid"); 2279 try { 2280 setSerialNumber(file, serialNumber); 2281 } catch (IOException e) { 2282 Slog.w(LOG_TAG, "Failed to set serial number on " + file, e); 2283 } 2284 2285 } else if (foundSerial != serialNumber) { 2286 throw new IOException("Found serial number " + foundSerial 2287 + " doesn't match expected " + serialNumber); 2288 } 2289 } 2290 2291 /** 2292 * Set serial number stored in user directory inode. 2293 * 2294 * @throws IOException if serial number was already set 2295 */ 2296 private static void setSerialNumber(File file, int serialNumber) 2297 throws IOException { 2298 try { 2299 final byte[] buf = Integer.toString(serialNumber).getBytes(StandardCharsets.UTF_8); 2300 Os.setxattr(file.getAbsolutePath(), XATTR_SERIAL, buf, OsConstants.XATTR_CREATE); 2301 } catch (ErrnoException e) { 2302 throw e.rethrowAsIOException(); 2303 } 2304 } 2305 2306 /** 2307 * Return serial number stored in user directory inode. 2308 * 2309 * @return parsed serial number, or -1 if not set 2310 */ 2311 private static int getSerialNumber(File file) throws IOException { 2312 try { 2313 final byte[] buf = new byte[256]; 2314 final int len = Os.getxattr(file.getAbsolutePath(), XATTR_SERIAL, buf); 2315 final String serial = new String(buf, 0, len); 2316 try { 2317 return Integer.parseInt(serial); 2318 } catch (NumberFormatException e) { 2319 throw new IOException("Bad serial number: " + serial); 2320 } 2321 } catch (ErrnoException e) { 2322 if (e.errno == OsConstants.ENODATA) { 2323 return -1; 2324 } else { 2325 throw e.rethrowAsIOException(); 2326 } 2327 } 2328 } 2329 2330 @Override 2331 public void onShellCommand(FileDescriptor in, FileDescriptor out, 2332 FileDescriptor err, String[] args, ResultReceiver resultReceiver) { 2333 (new Shell()).exec(this, in, out, err, args, resultReceiver); 2334 } 2335 2336 int onShellCommand(Shell shell, String cmd) { 2337 if (cmd == null) { 2338 return shell.handleDefaultCommands(cmd); 2339 } 2340 2341 final PrintWriter pw = shell.getOutPrintWriter(); 2342 try { 2343 switch(cmd) { 2344 case "list": 2345 return runList(pw); 2346 } 2347 } catch (RemoteException e) { 2348 pw.println("Remote exception: " + e); 2349 } 2350 return -1; 2351 } 2352 2353 private int runList(PrintWriter pw) throws RemoteException { 2354 final IActivityManager am = ActivityManagerNative.getDefault(); 2355 final List<UserInfo> users = getUsers(false); 2356 if (users == null) { 2357 pw.println("Error: couldn't get users"); 2358 return 1; 2359 } else { 2360 pw.println("Users:"); 2361 for (int i = 0; i < users.size(); i++) { 2362 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 2363 pw.println("\t" + users.get(i).toString() + running); 2364 } 2365 return 0; 2366 } 2367 } 2368 2369 @Override 2370 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2371 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 2372 != PackageManager.PERMISSION_GRANTED) { 2373 pw.println("Permission Denial: can't dump UserManager from from pid=" 2374 + Binder.getCallingPid() 2375 + ", uid=" + Binder.getCallingUid() 2376 + " without permission " 2377 + android.Manifest.permission.DUMP); 2378 return; 2379 } 2380 2381 long now = System.currentTimeMillis(); 2382 StringBuilder sb = new StringBuilder(); 2383 synchronized (mPackagesLock) { 2384 synchronized (mUsersLock) { 2385 pw.println("Users:"); 2386 for (int i = 0; i < mUsers.size(); i++) { 2387 UserInfo user = mUsers.valueAt(i); 2388 if (user == null) { 2389 continue; 2390 } 2391 pw.print(" "); pw.print(user); 2392 pw.print(" serialNo="); pw.print(user.serialNumber); 2393 if (mRemovingUserIds.get(mUsers.keyAt(i))) { 2394 pw.print(" <removing> "); 2395 } 2396 if (user.partial) { 2397 pw.print(" <partial>"); 2398 } 2399 pw.println(); 2400 pw.print(" Created: "); 2401 if (user.creationTime == 0) { 2402 pw.println("<unknown>"); 2403 } else { 2404 sb.setLength(0); 2405 TimeUtils.formatDuration(now - user.creationTime, sb); 2406 sb.append(" ago"); 2407 pw.println(sb); 2408 } 2409 pw.print(" Last logged in: "); 2410 if (user.lastLoggedInTime == 0) { 2411 pw.println("<unknown>"); 2412 } else { 2413 sb.setLength(0); 2414 TimeUtils.formatDuration(now - user.lastLoggedInTime, sb); 2415 sb.append(" ago"); 2416 pw.println(sb); 2417 } 2418 pw.println(" Restrictions:"); 2419 synchronized (mRestrictionsLock) { 2420 UserRestrictionsUtils.dumpRestrictions( 2421 pw, " ", mBaseUserRestrictions.get(user.id)); 2422 pw.println(" Device policy local restrictions:"); 2423 UserRestrictionsUtils.dumpRestrictions( 2424 pw, " ", mDevicePolicyLocalUserRestrictions.get(user.id)); 2425 pw.println(" Effective restrictions:"); 2426 UserRestrictionsUtils.dumpRestrictions( 2427 pw, " ", mCachedEffectiveUserRestrictions.get(user.id)); 2428 } 2429 pw.println(); 2430 } 2431 } 2432 pw.println(" Device policy global restrictions:"); 2433 synchronized (mRestrictionsLock) { 2434 UserRestrictionsUtils 2435 .dumpRestrictions(pw, " ", mDevicePolicyGlobalUserRestrictions); 2436 } 2437 pw.println(); 2438 pw.println(" Guest restrictions:"); 2439 synchronized (mGuestRestrictions) { 2440 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 2441 } 2442 } 2443 } 2444 2445 final class MainHandler extends Handler { 2446 2447 @Override 2448 public void handleMessage(Message msg) { 2449 switch (msg.what) { 2450 case WRITE_USER_MSG: 2451 removeMessages(WRITE_USER_MSG, msg.obj); 2452 synchronized (mPackagesLock) { 2453 int userId = ((UserInfo) msg.obj).id; 2454 UserInfo userInfo = getUserInfoNoChecks(userId); 2455 if (userInfo != null) { 2456 writeUserLP(userInfo); 2457 } 2458 } 2459 } 2460 } 2461 } 2462 2463 /** 2464 * @param userId 2465 * @return whether the user has been initialized yet 2466 */ 2467 boolean isInitialized(int userId) { 2468 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 2469 } 2470 2471 private class LocalService extends UserManagerInternal { 2472 @Override 2473 public void setDevicePolicyUserRestrictions(int userId, @NonNull Bundle localRestrictions, 2474 @Nullable Bundle globalRestrictions) { 2475 UserManagerService.this.setDevicePolicyUserRestrictions(userId, localRestrictions, 2476 globalRestrictions); 2477 } 2478 2479 @Override 2480 public Bundle getBaseUserRestrictions(int userId) { 2481 synchronized (mRestrictionsLock) { 2482 return mBaseUserRestrictions.get(userId); 2483 } 2484 } 2485 2486 @Override 2487 public void setBaseUserRestrictionsByDpmsForMigration( 2488 int userId, Bundle baseRestrictions) { 2489 synchronized (mRestrictionsLock) { 2490 mBaseUserRestrictions.put(userId, new Bundle(baseRestrictions)); 2491 invalidateEffectiveUserRestrictionsLR(userId); 2492 } 2493 2494 final UserInfo userInfo = getUserInfoNoChecks(userId); 2495 synchronized (mPackagesLock) { 2496 if (userInfo != null) { 2497 writeUserLP(userInfo); 2498 } else { 2499 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 2500 } 2501 } 2502 } 2503 2504 @Override 2505 public boolean getUserRestriction(int userId, String key) { 2506 return getUserRestrictions(userId).getBoolean(key); 2507 } 2508 2509 @Override 2510 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 2511 synchronized (mUserRestrictionsListeners) { 2512 mUserRestrictionsListeners.add(listener); 2513 } 2514 } 2515 2516 @Override 2517 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 2518 synchronized (mUserRestrictionsListeners) { 2519 mUserRestrictionsListeners.remove(listener); 2520 } 2521 } 2522 } 2523 2524 private class Shell extends ShellCommand { 2525 @Override 2526 public int onCommand(String cmd) { 2527 return onShellCommand(this, cmd); 2528 } 2529 2530 @Override 2531 public void onHelp() { 2532 final PrintWriter pw = getOutPrintWriter(); 2533 pw.println("User manager (user) commands:"); 2534 pw.println(" help"); 2535 pw.println(" Print this help text."); 2536 pw.println(""); 2537 pw.println(" list"); 2538 pw.println(" Prints all users on the system."); 2539 } 2540 } 2541 2542 private static void debug(String message) { 2543 Log.d(LOG_TAG, message + 2544 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 2545 } 2546} 2547