UserManagerService.java revision ac65e1e1dba1cf0ea237a389220ec818ade07a16
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 synchronized (mRestrictionsLock) { 785 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 786 // a copy. 787 final Bundle newRestrictions = UserRestrictionsUtils.clone( 788 mBaseUserRestrictions.get(userId)); 789 newRestrictions.putBoolean(key, value); 790 791 updateUserRestrictionsInternalLR(newRestrictions, userId); 792 } 793 } 794 795 /** 796 * Optionally updating user restrictions, calculate the effective user restrictions and also 797 * propagate to other services and system settings. 798 * 799 * @param newRestrictions User restrictions to set. 800 * If null, will not update user restrictions and only does the propagation. 801 * @param userId target user ID. 802 */ 803 @GuardedBy("mRestrictionsLock") 804 private void updateUserRestrictionsInternalLR( 805 @Nullable Bundle newRestrictions, int userId) { 806 807 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 808 mAppliedUserRestrictions.get(userId)); 809 810 // Update base restrictions. 811 if (newRestrictions != null) { 812 // If newRestrictions == the current one, it's probably a bug. 813 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 814 815 Preconditions.checkState(prevBaseRestrictions != newRestrictions); 816 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 817 != newRestrictions); 818 819 if (!UserRestrictionsUtils.areEqual(prevBaseRestrictions, newRestrictions)) { 820 mBaseUserRestrictions.put(userId, newRestrictions); 821 scheduleWriteUser(getUserInfoNoChecks(userId)); 822 } 823 } 824 825 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 826 827 mCachedEffectiveUserRestrictions.put(userId, effective); 828 829 // Apply the new restrictions. 830 if (DBG) { 831 debug("Applying user restrictions: userId=" + userId 832 + " new=" + effective + " prev=" + prevAppliedRestrictions); 833 } 834 835 if (mAppOpsService != null) { // We skip it until system-ready. 836 final long token = Binder.clearCallingIdentity(); 837 try { 838 mAppOpsService.setUserRestrictions(effective, userId); 839 } catch (RemoteException e) { 840 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 841 } finally { 842 Binder.restoreCallingIdentity(token); 843 } 844 } 845 846 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 847 848 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 849 } 850 851 private void propagateUserRestrictionsLR(final int userId, 852 Bundle newRestrictions, Bundle prevRestrictions) { 853 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 854 // actually, but we still need some kind of synchronization otherwise we might end up 855 // calling listeners out-of-order, thus "LR". 856 857 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 858 return; 859 } 860 861 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 862 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 863 864 mHandler.post(new Runnable() { 865 @Override 866 public void run() { 867 synchronized (mRestrictionsLock) { 868 UserRestrictionsUtils.applyUserRestrictionsLR( 869 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 870 } 871 872 final UserRestrictionsListener[] listeners; 873 synchronized (mUserRestrictionsListeners) { 874 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 875 mUserRestrictionsListeners.toArray(listeners); 876 } 877 for (int i = 0; i < listeners.length; i++) { 878 listeners[i].onUserRestrictionsChanged(userId, 879 newRestrictionsFinal, prevRestrictionsFinal); 880 } 881 } 882 }); 883 } 884 885 // Package private for the inner class. 886 void applyUserRestrictionsLR(int userId) { 887 updateUserRestrictionsInternalLR(null, userId); 888 } 889 890 @GuardedBy("mRestrictionsLock") 891 // Package private for the inner class. 892 void applyUserRestrictionsForAllUsersLR() { 893 if (DBG) { 894 debug("applyUserRestrictionsForAllUsersLR"); 895 } 896 // First, invalidate all cached values. 897 mCachedEffectiveUserRestrictions.clear(); 898 899 // We don't want to call into ActivityManagerNative while taking a lock, so we'll call 900 // it on a handler. 901 final Runnable r = new Runnable() { 902 @Override 903 public void run() { 904 // Then get the list of running users. 905 final int[] runningUsers; 906 try { 907 runningUsers = ActivityManagerNative.getDefault().getRunningUserIds(); 908 } catch (RemoteException e) { 909 Log.w(LOG_TAG, "Unable to access ActivityManagerNative"); 910 return; 911 } 912 // Then re-calculate the effective restrictions and apply, only for running users. 913 // It's okay if a new user has started after the getRunningUserIds() call, 914 // because we'll do the same thing (re-calculate the restrictions and apply) 915 // when we start a user. 916 synchronized (mRestrictionsLock) { 917 for (int i = 0; i < runningUsers.length; i++) { 918 applyUserRestrictionsLR(runningUsers[i]); 919 } 920 } 921 } 922 }; 923 mHandler.post(r); 924 } 925 926 /** 927 * Check if we've hit the limit of how many users can be created. 928 */ 929 private boolean isUserLimitReached() { 930 int count; 931 synchronized (mUsersLock) { 932 count = getAliveUsersExcludingGuestsCountLU(); 933 } 934 return count >= UserManager.getMaxSupportedUsers(); 935 } 936 937 @Override 938 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 939 checkManageUsersPermission("check if more managed profiles can be added."); 940 if (ActivityManager.isLowRamDeviceStatic()) { 941 return false; 942 } 943 if (!mContext.getPackageManager().hasSystemFeature( 944 PackageManager.FEATURE_MANAGED_USERS)) { 945 return false; 946 } 947 // Limit number of managed profiles that can be created 948 final int managedProfilesCount = getProfiles(userId, true).size() - 1; 949 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 950 if (managedProfilesCount - profilesRemovedCount >= MAX_MANAGED_PROFILES) { 951 return false; 952 } 953 synchronized(mUsersLock) { 954 UserInfo userInfo = getUserInfoLU(userId); 955 if (!userInfo.canHaveProfile()) { 956 return false; 957 } 958 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 959 - profilesRemovedCount; 960 // We allow creating a managed profile in the special case where there is only one user. 961 return usersCountAfterRemoving == 1 962 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 963 } 964 } 965 966 private int getAliveUsersExcludingGuestsCountLU() { 967 int aliveUserCount = 0; 968 final int totalUserCount = mUsers.size(); 969 // Skip over users being removed 970 for (int i = 0; i < totalUserCount; i++) { 971 UserInfo user = mUsers.valueAt(i); 972 if (!mRemovingUserIds.get(user.id) 973 && !user.isGuest() && !user.partial) { 974 aliveUserCount++; 975 } 976 } 977 return aliveUserCount; 978 } 979 980 /** 981 * Enforces that only the system UID or root's UID or apps that have the 982 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 983 * permission can make certain calls to the UserManager. 984 * 985 * @param message used as message if SecurityException is thrown 986 * @throws SecurityException if the caller is not system or root 987 */ 988 private static final void checkManageUsersPermission(String message) { 989 final int uid = Binder.getCallingUid(); 990 if (uid != Process.SYSTEM_UID && uid != 0 991 && ActivityManager.checkComponentPermission( 992 android.Manifest.permission.MANAGE_USERS, 993 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 994 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 995 } 996 } 997 998 private static void checkSystemOrRoot(String message) { 999 final int uid = Binder.getCallingUid(); 1000 if (uid != Process.SYSTEM_UID && uid != 0) { 1001 throw new SecurityException("Only system may call: " + message); 1002 } 1003 } 1004 1005 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1006 try { 1007 File dir = new File(mUsersDir, Integer.toString(info.id)); 1008 File file = new File(dir, USER_PHOTO_FILENAME); 1009 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1010 if (!dir.exists()) { 1011 dir.mkdir(); 1012 FileUtils.setPermissions( 1013 dir.getPath(), 1014 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1015 -1, -1); 1016 } 1017 FileOutputStream os; 1018 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1019 && tmp.renameTo(file)) { 1020 info.iconPath = file.getAbsolutePath(); 1021 } 1022 try { 1023 os.close(); 1024 } catch (IOException ioe) { 1025 // What the ... ! 1026 } 1027 tmp.delete(); 1028 } catch (FileNotFoundException e) { 1029 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1030 } 1031 } 1032 1033 /** 1034 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1035 * cache it elsewhere. 1036 * @return the array of user ids. 1037 */ 1038 public int[] getUserIds() { 1039 synchronized (mUsersLock) { 1040 return mUserIds; 1041 } 1042 } 1043 1044 private void readUserListLP() { 1045 if (!mUserListFile.exists()) { 1046 fallbackToSingleUserLP(); 1047 return; 1048 } 1049 FileInputStream fis = null; 1050 AtomicFile userListFile = new AtomicFile(mUserListFile); 1051 try { 1052 fis = userListFile.openRead(); 1053 XmlPullParser parser = Xml.newPullParser(); 1054 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1055 int type; 1056 while ((type = parser.next()) != XmlPullParser.START_TAG 1057 && type != XmlPullParser.END_DOCUMENT) { 1058 ; 1059 } 1060 1061 if (type != XmlPullParser.START_TAG) { 1062 Slog.e(LOG_TAG, "Unable to read user list"); 1063 fallbackToSingleUserLP(); 1064 return; 1065 } 1066 1067 mNextSerialNumber = -1; 1068 if (parser.getName().equals(TAG_USERS)) { 1069 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1070 if (lastSerialNumber != null) { 1071 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1072 } 1073 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1074 if (versionNumber != null) { 1075 mUserVersion = Integer.parseInt(versionNumber); 1076 } 1077 } 1078 1079 final Bundle newDevicePolicyGlobalUserRestrictions = new Bundle(); 1080 1081 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1082 if (type == XmlPullParser.START_TAG) { 1083 final String name = parser.getName(); 1084 if (name.equals(TAG_USER)) { 1085 String id = parser.getAttributeValue(null, ATTR_ID); 1086 UserInfo user = readUserLP(Integer.parseInt(id)); 1087 1088 if (user != null) { 1089 synchronized (mUsersLock) { 1090 mUsers.put(user.id, user); 1091 if (mNextSerialNumber < 0 || mNextSerialNumber <= user.id) { 1092 mNextSerialNumber = user.id + 1; 1093 } 1094 } 1095 } 1096 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1097 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1098 && type != XmlPullParser.END_TAG) { 1099 if (type == XmlPullParser.START_TAG) { 1100 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1101 synchronized (mGuestRestrictions) { 1102 UserRestrictionsUtils 1103 .readRestrictions(parser, mGuestRestrictions); 1104 } 1105 } else if (parser.getName().equals(TAG_DEVICE_POLICY_RESTRICTIONS) 1106 ) { 1107 UserRestrictionsUtils.readRestrictions(parser, 1108 newDevicePolicyGlobalUserRestrictions); 1109 } 1110 break; 1111 } 1112 } 1113 } 1114 } 1115 } 1116 synchronized (mRestrictionsLock) { 1117 mDevicePolicyGlobalUserRestrictions = newDevicePolicyGlobalUserRestrictions; 1118 } 1119 updateUserIds(); 1120 upgradeIfNecessaryLP(); 1121 } catch (IOException | XmlPullParserException e) { 1122 fallbackToSingleUserLP(); 1123 } finally { 1124 IoUtils.closeQuietly(fis); 1125 } 1126 } 1127 1128 /** 1129 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1130 */ 1131 private void upgradeIfNecessaryLP() { 1132 final int originalVersion = mUserVersion; 1133 int userVersion = mUserVersion; 1134 if (userVersion < 1) { 1135 // Assign a proper name for the owner, if not initialized correctly before 1136 UserInfo user = getUserInfoNoChecks(UserHandle.USER_SYSTEM); 1137 if ("Primary".equals(user.name)) { 1138 user.name = mContext.getResources().getString(com.android.internal.R.string.owner_name); 1139 scheduleWriteUser(user); 1140 } 1141 userVersion = 1; 1142 } 1143 1144 if (userVersion < 2) { 1145 // Owner should be marked as initialized 1146 UserInfo user = getUserInfoNoChecks(UserHandle.USER_SYSTEM); 1147 if ((user.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1148 user.flags |= UserInfo.FLAG_INITIALIZED; 1149 scheduleWriteUser(user); 1150 } 1151 userVersion = 2; 1152 } 1153 1154 1155 if (userVersion < 4) { 1156 userVersion = 4; 1157 } 1158 1159 if (userVersion < 5) { 1160 initDefaultGuestRestrictions(); 1161 userVersion = 5; 1162 } 1163 1164 if (userVersion < 6) { 1165 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1166 synchronized (mUsersLock) { 1167 for (int i = 0; i < mUsers.size(); i++) { 1168 UserInfo user = mUsers.valueAt(i); 1169 // In non-split mode, only user 0 can have restricted profiles 1170 if (!splitSystemUser && user.isRestricted() 1171 && (user.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID)) { 1172 user.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1173 scheduleWriteUser(user); 1174 } 1175 } 1176 } 1177 userVersion = 6; 1178 } 1179 1180 if (userVersion < USER_VERSION) { 1181 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1182 + USER_VERSION); 1183 } else { 1184 mUserVersion = userVersion; 1185 1186 if (originalVersion < mUserVersion) { 1187 writeUserListLP(); 1188 } 1189 } 1190 } 1191 1192 private void fallbackToSingleUserLP() { 1193 int flags = UserInfo.FLAG_INITIALIZED; 1194 // In split system user mode, the admin and primary flags are assigned to the first human 1195 // user. 1196 if (!UserManager.isSplitSystemUser()) { 1197 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1198 } 1199 // Create the system user 1200 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, 1201 mContext.getResources().getString(com.android.internal.R.string.owner_name), null, 1202 flags); 1203 synchronized (mUsersLock) { 1204 mUsers.put(system.id, system); 1205 } 1206 mNextSerialNumber = MIN_USER_ID; 1207 mUserVersion = USER_VERSION; 1208 1209 Bundle restrictions = new Bundle(); 1210 synchronized (mRestrictionsLock) { 1211 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1212 } 1213 1214 updateUserIds(); 1215 initDefaultGuestRestrictions(); 1216 1217 writeUserListLP(); 1218 writeUserLP(system); 1219 } 1220 1221 private void scheduleWriteUser(UserInfo userInfo) { 1222 if (DBG) { 1223 debug("scheduleWriteUser"); 1224 } 1225 // No need to wrap it within a lock -- worst case, we'll just post the same message 1226 // twice. 1227 if (!mHandler.hasMessages(WRITE_USER_MSG, userInfo)) { 1228 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, userInfo); 1229 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1230 } 1231 } 1232 1233 /* 1234 * Writes the user file in this format: 1235 * 1236 * <user flags="20039023" id="0"> 1237 * <name>Primary</name> 1238 * </user> 1239 */ 1240 private void writeUserLP(UserInfo userInfo) { 1241 if (DBG) { 1242 debug("writeUserLP " + userInfo); 1243 } 1244 FileOutputStream fos = null; 1245 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userInfo.id + XML_SUFFIX)); 1246 try { 1247 fos = userFile.startWrite(); 1248 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1249 1250 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1251 final XmlSerializer serializer = new FastXmlSerializer(); 1252 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1253 serializer.startDocument(null, true); 1254 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1255 1256 serializer.startTag(null, TAG_USER); 1257 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 1258 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 1259 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 1260 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 1261 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 1262 Long.toString(userInfo.lastLoggedInTime)); 1263 if (userInfo.iconPath != null) { 1264 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 1265 } 1266 if (userInfo.partial) { 1267 serializer.attribute(null, ATTR_PARTIAL, "true"); 1268 } 1269 if (userInfo.guestToRemove) { 1270 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 1271 } 1272 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 1273 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 1274 Integer.toString(userInfo.profileGroupId)); 1275 } 1276 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 1277 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 1278 Integer.toString(userInfo.restrictedProfileParentId)); 1279 } 1280 serializer.startTag(null, TAG_NAME); 1281 serializer.text(userInfo.name); 1282 serializer.endTag(null, TAG_NAME); 1283 synchronized (mRestrictionsLock) { 1284 UserRestrictionsUtils.writeRestrictions(serializer, 1285 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 1286 UserRestrictionsUtils.writeRestrictions(serializer, 1287 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 1288 TAG_DEVICE_POLICY_RESTRICTIONS); 1289 } 1290 serializer.endTag(null, TAG_USER); 1291 1292 serializer.endDocument(); 1293 userFile.finishWrite(fos); 1294 } catch (Exception ioe) { 1295 Slog.e(LOG_TAG, "Error writing user info " + userInfo.id + "\n" + ioe); 1296 userFile.failWrite(fos); 1297 } 1298 } 1299 1300 /* 1301 * Writes the user list file in this format: 1302 * 1303 * <users nextSerialNumber="3"> 1304 * <user id="0"></user> 1305 * <user id="2"></user> 1306 * </users> 1307 */ 1308 private void writeUserListLP() { 1309 if (DBG) { 1310 debug("writeUserList"); 1311 } 1312 FileOutputStream fos = null; 1313 AtomicFile userListFile = new AtomicFile(mUserListFile); 1314 try { 1315 fos = userListFile.startWrite(); 1316 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1317 1318 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1319 final XmlSerializer serializer = new FastXmlSerializer(); 1320 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1321 serializer.startDocument(null, true); 1322 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1323 1324 serializer.startTag(null, TAG_USERS); 1325 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 1326 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 1327 1328 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 1329 synchronized (mGuestRestrictions) { 1330 UserRestrictionsUtils 1331 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 1332 } 1333 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 1334 synchronized (mRestrictionsLock) { 1335 UserRestrictionsUtils.writeRestrictions(serializer, 1336 mDevicePolicyGlobalUserRestrictions, TAG_DEVICE_POLICY_RESTRICTIONS); 1337 } 1338 int[] userIdsToWrite; 1339 synchronized (mUsersLock) { 1340 userIdsToWrite = new int[mUsers.size()]; 1341 for (int i = 0; i < userIdsToWrite.length; i++) { 1342 UserInfo user = mUsers.valueAt(i); 1343 userIdsToWrite[i] = user.id; 1344 } 1345 } 1346 for (int id : userIdsToWrite) { 1347 serializer.startTag(null, TAG_USER); 1348 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 1349 serializer.endTag(null, TAG_USER); 1350 } 1351 1352 serializer.endTag(null, TAG_USERS); 1353 1354 serializer.endDocument(); 1355 userListFile.finishWrite(fos); 1356 } catch (Exception e) { 1357 userListFile.failWrite(fos); 1358 Slog.e(LOG_TAG, "Error writing user list"); 1359 } 1360 } 1361 1362 private UserInfo readUserLP(int id) { 1363 int flags = 0; 1364 int serialNumber = id; 1365 String name = null; 1366 String iconPath = null; 1367 long creationTime = 0L; 1368 long lastLoggedInTime = 0L; 1369 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 1370 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 1371 boolean partial = false; 1372 boolean guestToRemove = false; 1373 Bundle baseRestrictions = new Bundle(); 1374 Bundle localRestrictions = new Bundle(); 1375 1376 FileInputStream fis = null; 1377 try { 1378 AtomicFile userFile = 1379 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 1380 fis = userFile.openRead(); 1381 XmlPullParser parser = Xml.newPullParser(); 1382 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1383 int type; 1384 while ((type = parser.next()) != XmlPullParser.START_TAG 1385 && type != XmlPullParser.END_DOCUMENT) { 1386 ; 1387 } 1388 1389 if (type != XmlPullParser.START_TAG) { 1390 Slog.e(LOG_TAG, "Unable to read user " + id); 1391 return null; 1392 } 1393 1394 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 1395 int storedId = readIntAttribute(parser, ATTR_ID, -1); 1396 if (storedId != id) { 1397 Slog.e(LOG_TAG, "User id does not match the file name"); 1398 return null; 1399 } 1400 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 1401 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 1402 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 1403 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 1404 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 1405 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 1406 UserInfo.NO_PROFILE_GROUP_ID); 1407 restrictedProfileParentId = readIntAttribute(parser, 1408 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 1409 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 1410 if ("true".equals(valueString)) { 1411 partial = true; 1412 } 1413 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 1414 if ("true".equals(valueString)) { 1415 guestToRemove = true; 1416 } 1417 1418 int outerDepth = parser.getDepth(); 1419 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1420 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1421 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1422 continue; 1423 } 1424 String tag = parser.getName(); 1425 if (TAG_NAME.equals(tag)) { 1426 type = parser.next(); 1427 if (type == XmlPullParser.TEXT) { 1428 name = parser.getText(); 1429 } 1430 } else if (TAG_RESTRICTIONS.equals(tag)) { 1431 UserRestrictionsUtils.readRestrictions(parser, baseRestrictions); 1432 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 1433 UserRestrictionsUtils.readRestrictions(parser, localRestrictions); 1434 } 1435 } 1436 } 1437 1438 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 1439 userInfo.serialNumber = serialNumber; 1440 userInfo.creationTime = creationTime; 1441 userInfo.lastLoggedInTime = lastLoggedInTime; 1442 userInfo.partial = partial; 1443 userInfo.guestToRemove = guestToRemove; 1444 userInfo.profileGroupId = profileGroupId; 1445 userInfo.restrictedProfileParentId = restrictedProfileParentId; 1446 synchronized (mRestrictionsLock) { 1447 mBaseUserRestrictions.put(id, baseRestrictions); 1448 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 1449 } 1450 return userInfo; 1451 1452 } catch (IOException ioe) { 1453 } catch (XmlPullParserException pe) { 1454 } finally { 1455 if (fis != null) { 1456 try { 1457 fis.close(); 1458 } catch (IOException e) { 1459 } 1460 } 1461 } 1462 return null; 1463 } 1464 1465 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 1466 String valueString = parser.getAttributeValue(null, attr); 1467 if (valueString == null) return defaultValue; 1468 try { 1469 return Integer.parseInt(valueString); 1470 } catch (NumberFormatException nfe) { 1471 return defaultValue; 1472 } 1473 } 1474 1475 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 1476 String valueString = parser.getAttributeValue(null, attr); 1477 if (valueString == null) return defaultValue; 1478 try { 1479 return Long.parseLong(valueString); 1480 } catch (NumberFormatException nfe) { 1481 return defaultValue; 1482 } 1483 } 1484 1485 private boolean isPackageInstalled(String pkg, int userId) { 1486 final ApplicationInfo info = mPm.getApplicationInfo(pkg, 1487 PackageManager.GET_UNINSTALLED_PACKAGES, 1488 userId); 1489 if (info == null || (info.flags&ApplicationInfo.FLAG_INSTALLED) == 0) { 1490 return false; 1491 } 1492 return true; 1493 } 1494 1495 /** 1496 * Removes all the restrictions files (res_<packagename>) for a given user. 1497 * Does not do any permissions checking. 1498 */ 1499 private void cleanAppRestrictions(int userId) { 1500 synchronized (mPackagesLock) { 1501 File dir = Environment.getUserSystemDirectory(userId); 1502 String[] files = dir.list(); 1503 if (files == null) return; 1504 for (String fileName : files) { 1505 if (fileName.startsWith(RESTRICTIONS_FILE_PREFIX)) { 1506 File resFile = new File(dir, fileName); 1507 if (resFile.exists()) { 1508 resFile.delete(); 1509 } 1510 } 1511 } 1512 } 1513 } 1514 1515 /** 1516 * Removes the app restrictions file for a specific package and user id, if it exists. 1517 */ 1518 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 1519 synchronized (mPackagesLock) { 1520 File dir = Environment.getUserSystemDirectory(userId); 1521 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 1522 if (resFile.exists()) { 1523 resFile.delete(); 1524 } 1525 } 1526 } 1527 1528 @Override 1529 public UserInfo createProfileForUser(String name, int flags, int userId) { 1530 checkManageUsersPermission("Only the system can create users"); 1531 return createUserInternal(name, flags, userId); 1532 } 1533 1534 @Override 1535 public UserInfo createUser(String name, int flags) { 1536 checkManageUsersPermission("Only the system can create users"); 1537 return createUserInternal(name, flags, UserHandle.USER_NULL); 1538 } 1539 1540 private UserInfo createUserInternal(String name, int flags, int parentId) { 1541 if (hasUserRestriction(UserManager.DISALLOW_ADD_USER, UserHandle.getCallingUserId())) { 1542 Log.w(LOG_TAG, "Cannot add user. DISALLOW_ADD_USER is enabled."); 1543 return null; 1544 } 1545 if (ActivityManager.isLowRamDeviceStatic()) { 1546 return null; 1547 } 1548 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 1549 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 1550 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 1551 final long ident = Binder.clearCallingIdentity(); 1552 UserInfo userInfo; 1553 final int userId; 1554 try { 1555 synchronized (mPackagesLock) { 1556 UserInfo parent = null; 1557 if (parentId != UserHandle.USER_NULL) { 1558 synchronized (mUsersLock) { 1559 parent = getUserInfoLU(parentId); 1560 } 1561 if (parent == null) return null; 1562 } 1563 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 1564 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 1565 return null; 1566 } 1567 if (!isGuest && !isManagedProfile && isUserLimitReached()) { 1568 // If we're not adding a guest user or a managed profile and the limit has 1569 // been reached, cannot add a user. 1570 return null; 1571 } 1572 // If we're adding a guest and there already exists one, bail. 1573 if (isGuest && findCurrentGuestUser() != null) { 1574 return null; 1575 } 1576 // In legacy mode, restricted profile's parent can only be the owner user 1577 if (isRestricted && !UserManager.isSplitSystemUser() 1578 && (parentId != UserHandle.USER_SYSTEM)) { 1579 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 1580 return null; 1581 } 1582 if (isRestricted && UserManager.isSplitSystemUser()) { 1583 if (parent == null) { 1584 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 1585 + "specified"); 1586 return null; 1587 } 1588 if (!parent.canHaveProfile()) { 1589 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 1590 + "created for the specified parent user id " + parentId); 1591 return null; 1592 } 1593 } 1594 // In split system user mode, we assign the first human user the primary flag. 1595 // And if there is no device owner, we also assign the admin flag to primary user. 1596 if (UserManager.isSplitSystemUser() 1597 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 1598 flags |= UserInfo.FLAG_PRIMARY; 1599 DevicePolicyManager devicePolicyManager = (DevicePolicyManager) 1600 mContext.getSystemService(Context.DEVICE_POLICY_SERVICE); 1601 if (devicePolicyManager == null 1602 || devicePolicyManager.getDeviceOwner() == null) { 1603 flags |= UserInfo.FLAG_ADMIN; 1604 } 1605 } 1606 userId = getNextAvailableId(); 1607 userInfo = new UserInfo(userId, name, null, flags); 1608 userInfo.serialNumber = mNextSerialNumber++; 1609 long now = System.currentTimeMillis(); 1610 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 1611 userInfo.partial = true; 1612 Environment.getUserSystemDirectory(userInfo.id).mkdirs(); 1613 synchronized (mUsersLock) { 1614 mUsers.put(userId, userInfo); 1615 } 1616 writeUserListLP(); 1617 if (parent != null) { 1618 if (isManagedProfile) { 1619 if (parent.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 1620 parent.profileGroupId = parent.id; 1621 writeUserLP(parent); 1622 } 1623 userInfo.profileGroupId = parent.profileGroupId; 1624 } else if (isRestricted) { 1625 if (parent.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 1626 parent.restrictedProfileParentId = parent.id; 1627 writeUserLP(parent); 1628 } 1629 userInfo.restrictedProfileParentId = parent.restrictedProfileParentId; 1630 } 1631 } 1632 } 1633 final StorageManager storage = mContext.getSystemService(StorageManager.class); 1634 storage.createUserKey(userId, userInfo.serialNumber); 1635 for (VolumeInfo vol : storage.getWritablePrivateVolumes()) { 1636 final String volumeUuid = vol.getFsUuid(); 1637 try { 1638 final File userDir = Environment.getDataUserDirectory(volumeUuid, userId); 1639 storage.prepareUserStorage(volumeUuid, userId, userInfo.serialNumber); 1640 enforceSerialNumber(userDir, userInfo.serialNumber); 1641 } catch (IOException e) { 1642 Log.wtf(LOG_TAG, "Failed to create user directory on " + volumeUuid, e); 1643 } 1644 } 1645 mPm.createNewUser(userId); 1646 userInfo.partial = false; 1647 synchronized (mPackagesLock) { 1648 writeUserLP(userInfo); 1649 } 1650 updateUserIds(); 1651 Bundle restrictions = new Bundle(); 1652 synchronized (mRestrictionsLock) { 1653 mBaseUserRestrictions.append(userId, restrictions); 1654 } 1655 mPm.newUserCreated(userId); 1656 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 1657 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 1658 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 1659 android.Manifest.permission.MANAGE_USERS); 1660 } finally { 1661 Binder.restoreCallingIdentity(ident); 1662 } 1663 return userInfo; 1664 } 1665 1666 /** 1667 * @hide 1668 */ 1669 public UserInfo createRestrictedProfile(String name, int parentUserId) { 1670 checkManageUsersPermission("setupRestrictedProfile"); 1671 final UserInfo user = createProfileForUser(name, UserInfo.FLAG_RESTRICTED, parentUserId); 1672 if (user == null) { 1673 return null; 1674 } 1675 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 1676 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 1677 // the putIntForUser() will fail. 1678 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 1679 android.provider.Settings.Secure.LOCATION_MODE, 1680 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 1681 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 1682 return user; 1683 } 1684 1685 /** 1686 * Find the current guest user. If the Guest user is partial, 1687 * then do not include it in the results as it is about to die. 1688 */ 1689 private UserInfo findCurrentGuestUser() { 1690 synchronized (mUsersLock) { 1691 final int size = mUsers.size(); 1692 for (int i = 0; i < size; i++) { 1693 final UserInfo user = mUsers.valueAt(i); 1694 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 1695 return user; 1696 } 1697 } 1698 } 1699 return null; 1700 } 1701 1702 /** 1703 * Mark this guest user for deletion to allow us to create another guest 1704 * and switch to that user before actually removing this guest. 1705 * @param userHandle the userid of the current guest 1706 * @return whether the user could be marked for deletion 1707 */ 1708 public boolean markGuestForDeletion(int userHandle) { 1709 checkManageUsersPermission("Only the system can remove users"); 1710 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 1711 UserManager.DISALLOW_REMOVE_USER, false)) { 1712 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 1713 return false; 1714 } 1715 1716 long ident = Binder.clearCallingIdentity(); 1717 try { 1718 final UserInfo user; 1719 synchronized (mPackagesLock) { 1720 synchronized (mUsersLock) { 1721 user = mUsers.get(userHandle); 1722 if (userHandle == 0 || user == null || mRemovingUserIds.get(userHandle)) { 1723 return false; 1724 } 1725 } 1726 if (!user.isGuest()) { 1727 return false; 1728 } 1729 // We set this to a guest user that is to be removed. This is a temporary state 1730 // where we are allowed to add new Guest users, even if this one is still not 1731 // removed. This user will still show up in getUserInfo() calls. 1732 // If we don't get around to removing this Guest user, it will be purged on next 1733 // startup. 1734 user.guestToRemove = true; 1735 // Mark it as disabled, so that it isn't returned any more when 1736 // profiles are queried. 1737 user.flags |= UserInfo.FLAG_DISABLED; 1738 writeUserLP(user); 1739 } 1740 } finally { 1741 Binder.restoreCallingIdentity(ident); 1742 } 1743 return true; 1744 } 1745 1746 /** 1747 * Removes a user and all data directories created for that user. This method should be called 1748 * after the user's processes have been terminated. 1749 * @param userHandle the user's id 1750 */ 1751 public boolean removeUser(int userHandle) { 1752 checkManageUsersPermission("Only the system can remove users"); 1753 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 1754 UserManager.DISALLOW_REMOVE_USER, false)) { 1755 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 1756 return false; 1757 } 1758 1759 long ident = Binder.clearCallingIdentity(); 1760 try { 1761 final UserInfo user; 1762 int currentUser = ActivityManager.getCurrentUser(); 1763 if (currentUser == userHandle) { 1764 Log.w(LOG_TAG, "Current user cannot be removed"); 1765 return false; 1766 } 1767 synchronized (mPackagesLock) { 1768 synchronized (mUsersLock) { 1769 user = mUsers.get(userHandle); 1770 if (userHandle == 0 || user == null || mRemovingUserIds.get(userHandle)) { 1771 return false; 1772 } 1773 1774 // We remember deleted user IDs to prevent them from being 1775 // reused during the current boot; they can still be reused 1776 // after a reboot. 1777 mRemovingUserIds.put(userHandle, true); 1778 } 1779 1780 try { 1781 mAppOpsService.removeUser(userHandle); 1782 } catch (RemoteException e) { 1783 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 1784 } 1785 // Set this to a partially created user, so that the user will be purged 1786 // on next startup, in case the runtime stops now before stopping and 1787 // removing the user completely. 1788 user.partial = true; 1789 // Mark it as disabled, so that it isn't returned any more when 1790 // profiles are queried. 1791 user.flags |= UserInfo.FLAG_DISABLED; 1792 writeUserLP(user); 1793 } 1794 1795 if (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 1796 && user.isManagedProfile()) { 1797 // Send broadcast to notify system that the user removed was a 1798 // managed user. 1799 sendProfileRemovedBroadcast(user.profileGroupId, user.id); 1800 } 1801 1802 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 1803 int res; 1804 try { 1805 res = ActivityManagerNative.getDefault().stopUser(userHandle, 1806 new IStopUserCallback.Stub() { 1807 @Override 1808 public void userStopped(int userId) { 1809 finishRemoveUser(userId); 1810 } 1811 @Override 1812 public void userStopAborted(int userId) { 1813 } 1814 }); 1815 } catch (RemoteException e) { 1816 return false; 1817 } 1818 return res == ActivityManager.USER_OP_SUCCESS; 1819 } finally { 1820 Binder.restoreCallingIdentity(ident); 1821 } 1822 } 1823 1824 void finishRemoveUser(final int userHandle) { 1825 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 1826 // Let other services shutdown any activity and clean up their state before completely 1827 // wiping the user's system directory and removing from the user list 1828 long ident = Binder.clearCallingIdentity(); 1829 try { 1830 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 1831 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 1832 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 1833 android.Manifest.permission.MANAGE_USERS, 1834 1835 new BroadcastReceiver() { 1836 @Override 1837 public void onReceive(Context context, Intent intent) { 1838 if (DBG) { 1839 Slog.i(LOG_TAG, 1840 "USER_REMOVED broadcast sent, cleaning up user data " 1841 + userHandle); 1842 } 1843 new Thread() { 1844 public void run() { 1845 // Clean up any ActivityManager state 1846 LocalServices.getService(ActivityManagerInternal.class) 1847 .onUserRemoved(userHandle); 1848 removeUserState(userHandle); 1849 } 1850 }.start(); 1851 } 1852 }, 1853 1854 null, Activity.RESULT_OK, null, null); 1855 } finally { 1856 Binder.restoreCallingIdentity(ident); 1857 } 1858 } 1859 1860 private void removeUserState(final int userHandle) { 1861 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 1862 // Cleanup package manager settings 1863 mPm.cleanUpUser(this, userHandle); 1864 1865 // Remove this user from the list 1866 synchronized (mUsersLock) { 1867 mUsers.remove(userHandle); 1868 } 1869 // Remove user file 1870 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 1871 userFile.delete(); 1872 // Update the user list 1873 synchronized (mPackagesLock) { 1874 writeUserListLP(); 1875 } 1876 updateUserIds(); 1877 removeDirectoryRecursive(Environment.getUserSystemDirectory(userHandle)); 1878 } 1879 1880 private void removeDirectoryRecursive(File parent) { 1881 if (parent.isDirectory()) { 1882 String[] files = parent.list(); 1883 for (String filename : files) { 1884 File child = new File(parent, filename); 1885 removeDirectoryRecursive(child); 1886 } 1887 } 1888 parent.delete(); 1889 } 1890 1891 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 1892 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 1893 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 1894 Intent.FLAG_RECEIVER_FOREGROUND); 1895 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 1896 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 1897 } 1898 1899 @Override 1900 public Bundle getApplicationRestrictions(String packageName) { 1901 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 1902 } 1903 1904 @Override 1905 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 1906 if (UserHandle.getCallingUserId() != userId 1907 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 1908 checkManageUsersPermission("get application restrictions for other users/apps"); 1909 } 1910 synchronized (mPackagesLock) { 1911 // Read the restrictions from XML 1912 return readApplicationRestrictionsLP(packageName, userId); 1913 } 1914 } 1915 1916 @Override 1917 public void setApplicationRestrictions(String packageName, Bundle restrictions, 1918 int userId) { 1919 checkManageUsersPermission("set application restrictions"); 1920 synchronized (mPackagesLock) { 1921 if (restrictions == null || restrictions.isEmpty()) { 1922 cleanAppRestrictionsForPackage(packageName, userId); 1923 } else { 1924 // Write the restrictions to XML 1925 writeApplicationRestrictionsLP(packageName, restrictions, userId); 1926 } 1927 } 1928 1929 if (isPackageInstalled(packageName, userId)) { 1930 // Notify package of changes via an intent - only sent to explicitly registered receivers. 1931 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 1932 changeIntent.setPackage(packageName); 1933 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 1934 mContext.sendBroadcastAsUser(changeIntent, new UserHandle(userId)); 1935 } 1936 } 1937 1938 private void unhideAllInstalledAppsForUser(final int userHandle) { 1939 mHandler.post(new Runnable() { 1940 @Override 1941 public void run() { 1942 List<ApplicationInfo> apps = 1943 mPm.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES, 1944 userHandle).getList(); 1945 final long ident = Binder.clearCallingIdentity(); 1946 try { 1947 for (ApplicationInfo appInfo : apps) { 1948 if ((appInfo.flags & ApplicationInfo.FLAG_INSTALLED) != 0 1949 && (appInfo.privateFlags & ApplicationInfo.PRIVATE_FLAG_HIDDEN) 1950 != 0) { 1951 mPm.setApplicationHiddenSettingAsUser(appInfo.packageName, false, 1952 userHandle); 1953 } 1954 } 1955 } finally { 1956 Binder.restoreCallingIdentity(ident); 1957 } 1958 } 1959 }); 1960 } 1961 private int getUidForPackage(String packageName) { 1962 long ident = Binder.clearCallingIdentity(); 1963 try { 1964 return mContext.getPackageManager().getApplicationInfo(packageName, 1965 PackageManager.GET_UNINSTALLED_PACKAGES).uid; 1966 } catch (NameNotFoundException nnfe) { 1967 return -1; 1968 } finally { 1969 Binder.restoreCallingIdentity(ident); 1970 } 1971 } 1972 1973 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 1974 AtomicFile restrictionsFile = 1975 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 1976 packageToRestrictionsFileName(packageName))); 1977 return readApplicationRestrictionsLP(restrictionsFile); 1978 } 1979 1980 @VisibleForTesting 1981 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 1982 final Bundle restrictions = new Bundle(); 1983 final ArrayList<String> values = new ArrayList<>(); 1984 if (!restrictionsFile.getBaseFile().exists()) { 1985 return restrictions; 1986 } 1987 1988 FileInputStream fis = null; 1989 try { 1990 fis = restrictionsFile.openRead(); 1991 XmlPullParser parser = Xml.newPullParser(); 1992 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1993 XmlUtils.nextElement(parser); 1994 if (parser.getEventType() != XmlPullParser.START_TAG) { 1995 Slog.e(LOG_TAG, "Unable to read restrictions file " 1996 + restrictionsFile.getBaseFile()); 1997 return restrictions; 1998 } 1999 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2000 readEntry(restrictions, values, parser); 2001 } 2002 } catch (IOException|XmlPullParserException e) { 2003 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2004 } finally { 2005 IoUtils.closeQuietly(fis); 2006 } 2007 return restrictions; 2008 } 2009 2010 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2011 XmlPullParser parser) throws XmlPullParserException, IOException { 2012 int type = parser.getEventType(); 2013 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2014 String key = parser.getAttributeValue(null, ATTR_KEY); 2015 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2016 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2017 if (multiple != null) { 2018 values.clear(); 2019 int count = Integer.parseInt(multiple); 2020 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2021 if (type == XmlPullParser.START_TAG 2022 && parser.getName().equals(TAG_VALUE)) { 2023 values.add(parser.nextText().trim()); 2024 count--; 2025 } 2026 } 2027 String [] valueStrings = new String[values.size()]; 2028 values.toArray(valueStrings); 2029 restrictions.putStringArray(key, valueStrings); 2030 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2031 restrictions.putBundle(key, readBundleEntry(parser, values)); 2032 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2033 final int outerDepth = parser.getDepth(); 2034 ArrayList<Bundle> bundleList = new ArrayList<>(); 2035 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2036 Bundle childBundle = readBundleEntry(parser, values); 2037 bundleList.add(childBundle); 2038 } 2039 restrictions.putParcelableArray(key, 2040 bundleList.toArray(new Bundle[bundleList.size()])); 2041 } else { 2042 String value = parser.nextText().trim(); 2043 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2044 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2045 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2046 restrictions.putInt(key, Integer.parseInt(value)); 2047 } else { 2048 restrictions.putString(key, value); 2049 } 2050 } 2051 } 2052 } 2053 2054 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2055 throws IOException, XmlPullParserException { 2056 Bundle childBundle = new Bundle(); 2057 final int outerDepth = parser.getDepth(); 2058 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2059 readEntry(childBundle, values, parser); 2060 } 2061 return childBundle; 2062 } 2063 2064 private void writeApplicationRestrictionsLP(String packageName, 2065 Bundle restrictions, int userId) { 2066 AtomicFile restrictionsFile = new AtomicFile( 2067 new File(Environment.getUserSystemDirectory(userId), 2068 packageToRestrictionsFileName(packageName))); 2069 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 2070 } 2071 2072 @VisibleForTesting 2073 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 2074 FileOutputStream fos = null; 2075 try { 2076 fos = restrictionsFile.startWrite(); 2077 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2078 2079 final XmlSerializer serializer = new FastXmlSerializer(); 2080 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2081 serializer.startDocument(null, true); 2082 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2083 2084 serializer.startTag(null, TAG_RESTRICTIONS); 2085 writeBundle(restrictions, serializer); 2086 serializer.endTag(null, TAG_RESTRICTIONS); 2087 2088 serializer.endDocument(); 2089 restrictionsFile.finishWrite(fos); 2090 } catch (Exception e) { 2091 restrictionsFile.failWrite(fos); 2092 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 2093 } 2094 } 2095 2096 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 2097 throws IOException { 2098 for (String key : restrictions.keySet()) { 2099 Object value = restrictions.get(key); 2100 serializer.startTag(null, TAG_ENTRY); 2101 serializer.attribute(null, ATTR_KEY, key); 2102 2103 if (value instanceof Boolean) { 2104 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 2105 serializer.text(value.toString()); 2106 } else if (value instanceof Integer) { 2107 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 2108 serializer.text(value.toString()); 2109 } else if (value == null || value instanceof String) { 2110 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 2111 serializer.text(value != null ? (String) value : ""); 2112 } else if (value instanceof Bundle) { 2113 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2114 writeBundle((Bundle) value, serializer); 2115 } else if (value instanceof Parcelable[]) { 2116 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 2117 Parcelable[] array = (Parcelable[]) value; 2118 for (Parcelable parcelable : array) { 2119 if (!(parcelable instanceof Bundle)) { 2120 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 2121 } 2122 serializer.startTag(null, TAG_ENTRY); 2123 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2124 writeBundle((Bundle) parcelable, serializer); 2125 serializer.endTag(null, TAG_ENTRY); 2126 } 2127 } else { 2128 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 2129 String[] values = (String[]) value; 2130 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 2131 for (String choice : values) { 2132 serializer.startTag(null, TAG_VALUE); 2133 serializer.text(choice != null ? choice : ""); 2134 serializer.endTag(null, TAG_VALUE); 2135 } 2136 } 2137 serializer.endTag(null, TAG_ENTRY); 2138 } 2139 } 2140 2141 @Override 2142 public int getUserSerialNumber(int userHandle) { 2143 synchronized (mUsersLock) { 2144 if (!exists(userHandle)) return -1; 2145 return getUserInfoLU(userHandle).serialNumber; 2146 } 2147 } 2148 2149 @Override 2150 public int getUserHandle(int userSerialNumber) { 2151 synchronized (mUsersLock) { 2152 for (int userId : mUserIds) { 2153 UserInfo info = getUserInfoLU(userId); 2154 if (info != null && info.serialNumber == userSerialNumber) return userId; 2155 } 2156 // Not found 2157 return -1; 2158 } 2159 } 2160 2161 @Override 2162 public long getUserCreationTime(int userHandle) { 2163 int callingUserId = UserHandle.getCallingUserId(); 2164 UserInfo userInfo = null; 2165 synchronized (mUsersLock) { 2166 if (callingUserId == userHandle) { 2167 userInfo = getUserInfoLU(userHandle); 2168 } else { 2169 UserInfo parent = getProfileParentLU(userHandle); 2170 if (parent != null && parent.id == callingUserId) { 2171 userInfo = getUserInfoLU(userHandle); 2172 } 2173 } 2174 } 2175 if (userInfo == null) { 2176 throw new SecurityException("userHandle can only be the calling user or a managed " 2177 + "profile associated with this user"); 2178 } 2179 return userInfo.creationTime; 2180 } 2181 2182 /** 2183 * Caches the list of user ids in an array, adjusting the array size when necessary. 2184 */ 2185 private void updateUserIds() { 2186 int num = 0; 2187 synchronized (mUsersLock) { 2188 final int userSize = mUsers.size(); 2189 for (int i = 0; i < userSize; i++) { 2190 if (!mUsers.valueAt(i).partial) { 2191 num++; 2192 } 2193 } 2194 final int[] newUsers = new int[num]; 2195 int n = 0; 2196 for (int i = 0; i < userSize; i++) { 2197 if (!mUsers.valueAt(i).partial) { 2198 newUsers[n++] = mUsers.keyAt(i); 2199 } 2200 } 2201 mUserIds = newUsers; 2202 } 2203 } 2204 2205 /** 2206 * Called right before a user starts. This will not be called for the system user. 2207 */ 2208 public void onBeforeStartUser(int userId) { 2209 synchronized (mRestrictionsLock) { 2210 applyUserRestrictionsLR(userId); 2211 } 2212 } 2213 2214 /** 2215 * Make a note of the last started time of a user and do some cleanup. 2216 * @param userId the user that was just foregrounded 2217 */ 2218 public void onUserForeground(int userId) { 2219 UserInfo user = getUserInfoNoChecks(userId); 2220 if (user == null || user.partial) { 2221 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 2222 return; 2223 } 2224 long now = System.currentTimeMillis(); 2225 if (now > EPOCH_PLUS_30_YEARS) { 2226 user.lastLoggedInTime = now; 2227 scheduleWriteUser(user); 2228 } 2229 } 2230 2231 /** 2232 * Returns the next available user id, filling in any holes in the ids. 2233 * TODO: May not be a good idea to recycle ids, in case it results in confusion 2234 * for data and battery stats collection, or unexpected cross-talk. 2235 */ 2236 private int getNextAvailableId() { 2237 synchronized (mUsersLock) { 2238 int i = MIN_USER_ID; 2239 while (i < MAX_USER_ID) { 2240 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 2241 return i; 2242 } 2243 i++; 2244 } 2245 } 2246 throw new IllegalStateException("No user id available!"); 2247 } 2248 2249 private String packageToRestrictionsFileName(String packageName) { 2250 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 2251 } 2252 2253 /** 2254 * Enforce that serial number stored in user directory inode matches the 2255 * given expected value. Gracefully sets the serial number if currently 2256 * undefined. 2257 * 2258 * @throws IOException when problem extracting serial number, or serial 2259 * number is mismatched. 2260 */ 2261 public static void enforceSerialNumber(File file, int serialNumber) throws IOException { 2262 final int foundSerial = getSerialNumber(file); 2263 Slog.v(LOG_TAG, "Found " + file + " with serial number " + foundSerial); 2264 2265 if (foundSerial == -1) { 2266 Slog.d(LOG_TAG, "Serial number missing on " + file + "; assuming current is valid"); 2267 try { 2268 setSerialNumber(file, serialNumber); 2269 } catch (IOException e) { 2270 Slog.w(LOG_TAG, "Failed to set serial number on " + file, e); 2271 } 2272 2273 } else if (foundSerial != serialNumber) { 2274 throw new IOException("Found serial number " + foundSerial 2275 + " doesn't match expected " + serialNumber); 2276 } 2277 } 2278 2279 /** 2280 * Set serial number stored in user directory inode. 2281 * 2282 * @throws IOException if serial number was already set 2283 */ 2284 private static void setSerialNumber(File file, int serialNumber) 2285 throws IOException { 2286 try { 2287 final byte[] buf = Integer.toString(serialNumber).getBytes(StandardCharsets.UTF_8); 2288 Os.setxattr(file.getAbsolutePath(), XATTR_SERIAL, buf, OsConstants.XATTR_CREATE); 2289 } catch (ErrnoException e) { 2290 throw e.rethrowAsIOException(); 2291 } 2292 } 2293 2294 /** 2295 * Return serial number stored in user directory inode. 2296 * 2297 * @return parsed serial number, or -1 if not set 2298 */ 2299 private static int getSerialNumber(File file) throws IOException { 2300 try { 2301 final byte[] buf = new byte[256]; 2302 final int len = Os.getxattr(file.getAbsolutePath(), XATTR_SERIAL, buf); 2303 final String serial = new String(buf, 0, len); 2304 try { 2305 return Integer.parseInt(serial); 2306 } catch (NumberFormatException e) { 2307 throw new IOException("Bad serial number: " + serial); 2308 } 2309 } catch (ErrnoException e) { 2310 if (e.errno == OsConstants.ENODATA) { 2311 return -1; 2312 } else { 2313 throw e.rethrowAsIOException(); 2314 } 2315 } 2316 } 2317 2318 @Override 2319 public void onShellCommand(FileDescriptor in, FileDescriptor out, 2320 FileDescriptor err, String[] args, ResultReceiver resultReceiver) { 2321 (new Shell()).exec(this, in, out, err, args, resultReceiver); 2322 } 2323 2324 int onShellCommand(Shell shell, String cmd) { 2325 if (cmd == null) { 2326 return shell.handleDefaultCommands(cmd); 2327 } 2328 2329 final PrintWriter pw = shell.getOutPrintWriter(); 2330 try { 2331 switch(cmd) { 2332 case "list": 2333 return runList(pw); 2334 } 2335 } catch (RemoteException e) { 2336 pw.println("Remote exception: " + e); 2337 } 2338 return -1; 2339 } 2340 2341 private int runList(PrintWriter pw) throws RemoteException { 2342 final IActivityManager am = ActivityManagerNative.getDefault(); 2343 final List<UserInfo> users = getUsers(false); 2344 if (users == null) { 2345 pw.println("Error: couldn't get users"); 2346 return 1; 2347 } else { 2348 pw.println("Users:"); 2349 for (int i = 0; i < users.size(); i++) { 2350 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 2351 pw.println("\t" + users.get(i).toString() + running); 2352 } 2353 return 0; 2354 } 2355 } 2356 2357 @Override 2358 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2359 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 2360 != PackageManager.PERMISSION_GRANTED) { 2361 pw.println("Permission Denial: can't dump UserManager from from pid=" 2362 + Binder.getCallingPid() 2363 + ", uid=" + Binder.getCallingUid() 2364 + " without permission " 2365 + android.Manifest.permission.DUMP); 2366 return; 2367 } 2368 2369 long now = System.currentTimeMillis(); 2370 StringBuilder sb = new StringBuilder(); 2371 synchronized (mPackagesLock) { 2372 synchronized (mUsersLock) { 2373 pw.println("Users:"); 2374 for (int i = 0; i < mUsers.size(); i++) { 2375 UserInfo user = mUsers.valueAt(i); 2376 if (user == null) { 2377 continue; 2378 } 2379 pw.print(" "); pw.print(user); 2380 pw.print(" serialNo="); pw.print(user.serialNumber); 2381 if (mRemovingUserIds.get(mUsers.keyAt(i))) { 2382 pw.print(" <removing> "); 2383 } 2384 if (user.partial) { 2385 pw.print(" <partial>"); 2386 } 2387 pw.println(); 2388 pw.print(" Created: "); 2389 if (user.creationTime == 0) { 2390 pw.println("<unknown>"); 2391 } else { 2392 sb.setLength(0); 2393 TimeUtils.formatDuration(now - user.creationTime, sb); 2394 sb.append(" ago"); 2395 pw.println(sb); 2396 } 2397 pw.print(" Last logged in: "); 2398 if (user.lastLoggedInTime == 0) { 2399 pw.println("<unknown>"); 2400 } else { 2401 sb.setLength(0); 2402 TimeUtils.formatDuration(now - user.lastLoggedInTime, sb); 2403 sb.append(" ago"); 2404 pw.println(sb); 2405 } 2406 pw.println(" Restrictions:"); 2407 synchronized (mRestrictionsLock) { 2408 UserRestrictionsUtils.dumpRestrictions( 2409 pw, " ", mBaseUserRestrictions.get(user.id)); 2410 pw.println(" Device policy local restrictions:"); 2411 UserRestrictionsUtils.dumpRestrictions( 2412 pw, " ", mDevicePolicyLocalUserRestrictions.get(user.id)); 2413 pw.println(" Effective restrictions:"); 2414 UserRestrictionsUtils.dumpRestrictions( 2415 pw, " ", mCachedEffectiveUserRestrictions.get(user.id)); 2416 } 2417 pw.println(); 2418 } 2419 } 2420 pw.println(" Device policy global restrictions:"); 2421 synchronized (mRestrictionsLock) { 2422 UserRestrictionsUtils 2423 .dumpRestrictions(pw, " ", mDevicePolicyGlobalUserRestrictions); 2424 } 2425 pw.println(); 2426 pw.println(" Guest restrictions:"); 2427 synchronized (mGuestRestrictions) { 2428 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 2429 } 2430 } 2431 } 2432 2433 final class MainHandler extends Handler { 2434 2435 @Override 2436 public void handleMessage(Message msg) { 2437 switch (msg.what) { 2438 case WRITE_USER_MSG: 2439 removeMessages(WRITE_USER_MSG, msg.obj); 2440 synchronized (mPackagesLock) { 2441 int userId = ((UserInfo) msg.obj).id; 2442 UserInfo userInfo = getUserInfoNoChecks(userId); 2443 if (userInfo != null) { 2444 writeUserLP(userInfo); 2445 } 2446 } 2447 } 2448 } 2449 } 2450 2451 /** 2452 * @param userId 2453 * @return whether the user has been initialized yet 2454 */ 2455 boolean isInitialized(int userId) { 2456 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 2457 } 2458 2459 private class LocalService extends UserManagerInternal { 2460 @Override 2461 public void setDevicePolicyUserRestrictions(int userId, @NonNull Bundle localRestrictions, 2462 @Nullable Bundle globalRestrictions) { 2463 UserManagerService.this.setDevicePolicyUserRestrictions(userId, localRestrictions, 2464 globalRestrictions); 2465 } 2466 2467 @Override 2468 public Bundle getBaseUserRestrictions(int userId) { 2469 synchronized (mRestrictionsLock) { 2470 return mBaseUserRestrictions.get(userId); 2471 } 2472 } 2473 2474 @Override 2475 public void setBaseUserRestrictionsByDpmsForMigration( 2476 int userId, Bundle baseRestrictions) { 2477 synchronized (mRestrictionsLock) { 2478 mBaseUserRestrictions.put(userId, new Bundle(baseRestrictions)); 2479 invalidateEffectiveUserRestrictionsLR(userId); 2480 } 2481 2482 final UserInfo userInfo = getUserInfoNoChecks(userId); 2483 synchronized (mPackagesLock) { 2484 if (userInfo != null) { 2485 writeUserLP(userInfo); 2486 } else { 2487 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 2488 } 2489 } 2490 } 2491 2492 @Override 2493 public boolean getUserRestriction(int userId, String key) { 2494 return getUserRestrictions(userId).getBoolean(key); 2495 } 2496 2497 @Override 2498 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 2499 synchronized (mUserRestrictionsListeners) { 2500 mUserRestrictionsListeners.add(listener); 2501 } 2502 } 2503 2504 @Override 2505 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 2506 synchronized (mUserRestrictionsListeners) { 2507 mUserRestrictionsListeners.remove(listener); 2508 } 2509 } 2510 } 2511 2512 private class Shell extends ShellCommand { 2513 @Override 2514 public int onCommand(String cmd) { 2515 return onShellCommand(this, cmd); 2516 } 2517 2518 @Override 2519 public void onHelp() { 2520 final PrintWriter pw = getOutPrintWriter(); 2521 pw.println("User manager (user) commands:"); 2522 pw.println(" help"); 2523 pw.println(" Print this help text."); 2524 pw.println(""); 2525 pw.println(" list"); 2526 pw.println(" Prints all users on the system."); 2527 } 2528 } 2529 2530 private static void debug(String message) { 2531 Log.d(LOG_TAG, message + 2532 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 2533 } 2534} 2535