UserManagerService.java revision ce18c8167766f92856f94a8e88e19de4698960e6
1 2/* 3 * Copyright (C) 2011 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18package com.android.server.pm; 19 20import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS; 21import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; 22 23import android.Manifest; 24import android.annotation.NonNull; 25import android.annotation.Nullable; 26import android.annotation.UserIdInt; 27import android.app.Activity; 28import android.app.ActivityManager; 29import android.app.ActivityManagerInternal; 30import android.app.ActivityManagerNative; 31import android.app.IActivityManager; 32import android.app.IStopUserCallback; 33import android.app.KeyguardManager; 34import android.content.BroadcastReceiver; 35import android.content.Context; 36import android.content.Intent; 37import android.content.IntentFilter; 38import android.content.IntentSender; 39import android.content.pm.PackageManager; 40import android.content.pm.PackageManager.NameNotFoundException; 41import android.content.pm.UserInfo; 42import android.content.res.Resources; 43import android.graphics.Bitmap; 44import android.os.Binder; 45import android.os.Build; 46import android.os.Bundle; 47import android.os.Debug; 48import android.os.Environment; 49import android.os.FileUtils; 50import android.os.Handler; 51import android.os.IBinder; 52import android.os.IUserManager; 53import android.os.Message; 54import android.os.ParcelFileDescriptor; 55import android.os.Parcelable; 56import android.os.PersistableBundle; 57import android.os.Process; 58import android.os.RemoteException; 59import android.os.ResultReceiver; 60import android.os.SELinux; 61import android.os.ServiceManager; 62import android.os.ShellCommand; 63import android.os.UserHandle; 64import android.os.UserManager; 65import android.os.UserManagerInternal; 66import android.os.UserManagerInternal.UserRestrictionsListener; 67import android.os.storage.StorageManager; 68import android.system.ErrnoException; 69import android.system.Os; 70import android.system.OsConstants; 71import android.util.AtomicFile; 72import android.util.IntArray; 73import android.util.Log; 74import android.util.Slog; 75import android.util.SparseArray; 76import android.util.SparseBooleanArray; 77import android.util.TimeUtils; 78import android.util.Xml; 79 80import com.android.internal.annotations.GuardedBy; 81import com.android.internal.annotations.VisibleForTesting; 82import com.android.internal.app.IAppOpsService; 83import com.android.internal.logging.MetricsLogger; 84import com.android.internal.util.FastXmlSerializer; 85import com.android.internal.util.Preconditions; 86import com.android.internal.util.XmlUtils; 87import com.android.internal.widget.LockPatternUtils; 88import com.android.server.LocalServices; 89 90import libcore.io.IoUtils; 91import libcore.util.Objects; 92 93import org.xmlpull.v1.XmlPullParser; 94import org.xmlpull.v1.XmlPullParserException; 95import org.xmlpull.v1.XmlSerializer; 96 97import java.io.BufferedOutputStream; 98import java.io.File; 99import java.io.FileDescriptor; 100import java.io.FileInputStream; 101import java.io.FileNotFoundException; 102import java.io.FileOutputStream; 103import java.io.IOException; 104import java.io.PrintWriter; 105import java.nio.charset.StandardCharsets; 106import java.util.ArrayList; 107import java.util.List; 108 109/** 110 * Service for {@link UserManager}. 111 * 112 * Method naming convention: 113 * <ul> 114 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 115 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 116 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 117 * </ul> 118 */ 119public class UserManagerService extends IUserManager.Stub { 120 private static final String LOG_TAG = "UserManagerService"; 121 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 122 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 123 124 private static final String TAG_NAME = "name"; 125 private static final String TAG_ACCOUNT = "account"; 126 private static final String ATTR_FLAGS = "flags"; 127 private static final String ATTR_ICON_PATH = "icon"; 128 private static final String ATTR_ID = "id"; 129 private static final String ATTR_CREATION_TIME = "created"; 130 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 131 private static final String ATTR_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint"; 132 private static final String ATTR_SERIAL_NO = "serialNumber"; 133 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 134 private static final String ATTR_PARTIAL = "partial"; 135 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 136 private static final String ATTR_USER_VERSION = "version"; 137 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 138 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 139 private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; 140 private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; 141 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 142 private static final String TAG_USERS = "users"; 143 private static final String TAG_USER = "user"; 144 private static final String TAG_RESTRICTIONS = "restrictions"; 145 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 146 private static final String TAG_ENTRY = "entry"; 147 private static final String TAG_VALUE = "value"; 148 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 149 private static final String ATTR_KEY = "key"; 150 private static final String ATTR_VALUE_TYPE = "type"; 151 private static final String ATTR_MULTIPLE = "m"; 152 153 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 154 private static final String ATTR_TYPE_STRING = "s"; 155 private static final String ATTR_TYPE_BOOLEAN = "b"; 156 private static final String ATTR_TYPE_INTEGER = "i"; 157 private static final String ATTR_TYPE_BUNDLE = "B"; 158 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 159 160 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 161 private static final String USER_LIST_FILENAME = "userlist.xml"; 162 private static final String USER_PHOTO_FILENAME = "photo.png"; 163 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 164 165 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 166 private static final String XML_SUFFIX = ".xml"; 167 168 private static final int MIN_USER_ID = 10; 169 // We need to keep process uid within Integer.MAX_VALUE. 170 private static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 171 172 private static final int USER_VERSION = 6; 173 174 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 175 176 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 177 // without first making sure that the rest of the framework is prepared for it. 178 private static final int MAX_MANAGED_PROFILES = 1; 179 180 static final int WRITE_USER_MSG = 1; 181 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 182 183 private static final String XATTR_SERIAL = "user.serial"; 184 185 // Tron counters 186 private static final String TRON_GUEST_CREATED = "users_guest_created"; 187 private static final String TRON_USER_CREATED = "users_user_created"; 188 189 private final Context mContext; 190 private final PackageManagerService mPm; 191 private final Object mPackagesLock; 192 // Short-term lock for internal state, when interaction/sync with PM is not required 193 private final Object mUsersLock = new Object(); 194 private final Object mRestrictionsLock = new Object(); 195 196 private final Handler mHandler; 197 198 private final File mUsersDir; 199 private final File mUserListFile; 200 201 private static final IBinder mUserRestriconToken = new Binder(); 202 203 /** 204 * User-related information that is used for persisting to flash. Only UserInfo is 205 * directly exposed to other system apps. 206 */ 207 private static class UserData { 208 // Basic user information and properties 209 UserInfo info; 210 // Account name used when there is a strong association between a user and an account 211 String account; 212 // Account information for seeding into a newly created user. This could also be 213 // used for login validation for an existing user, for updating their credentials. 214 // In the latter case, data may not need to be persisted as it is only valid for the 215 // current login session. 216 String seedAccountName; 217 String seedAccountType; 218 PersistableBundle seedAccountOptions; 219 // Whether to perist the seed account information to be available after a boot 220 boolean persistSeedData; 221 222 void clearSeedAccountData() { 223 seedAccountName = null; 224 seedAccountType = null; 225 seedAccountOptions = null; 226 persistSeedData = false; 227 } 228 } 229 230 @GuardedBy("mUsersLock") 231 private final SparseArray<UserData> mUsers = new SparseArray<>(); 232 233 /** 234 * User restrictions set via UserManager. This doesn't include restrictions set by 235 * device owner / profile owners. 236 * 237 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 238 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 239 * maybe shared between {@link #mBaseUserRestrictions} and 240 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 241 * (Otherwise we won't be able to detect what restrictions have changed in 242 * {@link #updateUserRestrictionsInternalLR}. 243 */ 244 @GuardedBy("mRestrictionsLock") 245 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 246 247 /** 248 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 249 * with device / profile owner restrictions. We'll initialize it lazily; use 250 * {@link #getEffectiveUserRestrictions} to access it. 251 * 252 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 253 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 254 * maybe shared between {@link #mBaseUserRestrictions} and 255 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 256 * (Otherwise we won't be able to detect what restrictions have changed in 257 * {@link #updateUserRestrictionsInternalLR}. 258 */ 259 @GuardedBy("mRestrictionsLock") 260 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 261 262 /** 263 * User restrictions that have already been applied in 264 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 265 * that have changed since the last 266 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 267 */ 268 @GuardedBy("mRestrictionsLock") 269 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 270 271 /** 272 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 273 * that should be applied to all users, including guests. 274 */ 275 @GuardedBy("mRestrictionsLock") 276 private Bundle mDevicePolicyGlobalUserRestrictions; 277 278 /** 279 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 280 * for each user. 281 */ 282 @GuardedBy("mRestrictionsLock") 283 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 284 285 @GuardedBy("mGuestRestrictions") 286 private final Bundle mGuestRestrictions = new Bundle(); 287 288 /** 289 * Set of user IDs being actively removed. Removed IDs linger in this set 290 * for several seconds to work around a VFS caching issue. 291 */ 292 @GuardedBy("mUsersLock") 293 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 294 295 @GuardedBy("mUsersLock") 296 private int[] mUserIds; 297 @GuardedBy("mPackagesLock") 298 private int mNextSerialNumber; 299 private int mUserVersion = 0; 300 301 private IAppOpsService mAppOpsService; 302 303 private final LocalService mLocalService; 304 305 @GuardedBy("mUsersLock") 306 private boolean mIsDeviceManaged; 307 308 @GuardedBy("mUsersLock") 309 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 310 311 @GuardedBy("mUserRestrictionsListeners") 312 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 313 new ArrayList<>(); 314 315 private final LockPatternUtils mLockPatternUtils; 316 317 /** 318 * Whether all users should be created ephemeral. 319 */ 320 @GuardedBy("mUsersLock") 321 private boolean mForceEphemeralUsers; 322 323 private static UserManagerService sInstance; 324 325 public static UserManagerService getInstance() { 326 synchronized (UserManagerService.class) { 327 return sInstance; 328 } 329 } 330 331 @VisibleForTesting 332 UserManagerService(File dataDir) { 333 this(null, null, new Object(), dataDir); 334 } 335 336 /** 337 * Called by package manager to create the service. This is closely 338 * associated with the package manager, and the given lock is the 339 * package manager's own lock. 340 */ 341 UserManagerService(Context context, PackageManagerService pm, Object packagesLock) { 342 this(context, pm, packagesLock, Environment.getDataDirectory()); 343 } 344 345 private UserManagerService(Context context, PackageManagerService pm, 346 Object packagesLock, File dataDir) { 347 mContext = context; 348 mPm = pm; 349 mPackagesLock = packagesLock; 350 mHandler = new MainHandler(); 351 synchronized (mPackagesLock) { 352 mUsersDir = new File(dataDir, USER_INFO_DIR); 353 mUsersDir.mkdirs(); 354 // Make zeroth user directory, for services to migrate their files to that location 355 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 356 userZeroDir.mkdirs(); 357 FileUtils.setPermissions(mUsersDir.toString(), 358 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 359 -1, -1); 360 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 361 initDefaultGuestRestrictions(); 362 readUserListLP(); 363 sInstance = this; 364 } 365 mLocalService = new LocalService(); 366 LocalServices.addService(UserManagerInternal.class, mLocalService); 367 mLockPatternUtils = new LockPatternUtils(mContext); 368 } 369 370 void systemReady() { 371 // Prune out any partially created, partially removed and ephemeral users. 372 ArrayList<UserInfo> partials = new ArrayList<>(); 373 synchronized (mUsersLock) { 374 final int userSize = mUsers.size(); 375 for (int i = 0; i < userSize; i++) { 376 UserInfo ui = mUsers.valueAt(i).info; 377 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 378 partials.add(ui); 379 } 380 } 381 } 382 final int partialsSize = partials.size(); 383 for (int i = 0; i < partialsSize; i++) { 384 UserInfo ui = partials.get(i); 385 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 386 + " (name=" + ui.name + ")"); 387 removeUserState(ui.id); 388 } 389 390 mAppOpsService = IAppOpsService.Stub.asInterface( 391 ServiceManager.getService(Context.APP_OPS_SERVICE)); 392 393 synchronized (mRestrictionsLock) { 394 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 395 } 396 397 UserInfo currentGuestUser = findCurrentGuestUser(); 398 if (currentGuestUser != null && !hasUserRestriction( 399 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 400 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 401 // to it, in case this guest was created in a previous version where this 402 // user restriction was not a default guest restriction. 403 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 404 } 405 } 406 407 @Override 408 public String getUserAccount(int userId) { 409 checkManageUserAndAcrossUsersFullPermission("get user account"); 410 synchronized (mUsersLock) { 411 return mUsers.get(userId).account; 412 } 413 } 414 415 @Override 416 public void setUserAccount(int userId, String accountName) { 417 checkManageUserAndAcrossUsersFullPermission("set user account"); 418 UserData userToUpdate = null; 419 synchronized (mPackagesLock) { 420 synchronized (mUsersLock) { 421 final UserData userData = mUsers.get(userId); 422 if (userData == null) { 423 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 424 return; 425 } 426 String currentAccount = userData.account; 427 if (!Objects.equal(currentAccount, accountName)) { 428 userData.account = accountName; 429 userToUpdate = userData; 430 } 431 } 432 433 if (userToUpdate != null) { 434 writeUserLP(userToUpdate); 435 } 436 } 437 } 438 439 @Override 440 public UserInfo getPrimaryUser() { 441 checkManageUsersPermission("query users"); 442 synchronized (mUsersLock) { 443 final int userSize = mUsers.size(); 444 for (int i = 0; i < userSize; i++) { 445 UserInfo ui = mUsers.valueAt(i).info; 446 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 447 return ui; 448 } 449 } 450 } 451 return null; 452 } 453 454 @Override 455 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 456 checkManageUsersPermission("query users"); 457 synchronized (mUsersLock) { 458 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 459 final int userSize = mUsers.size(); 460 for (int i = 0; i < userSize; i++) { 461 UserInfo ui = mUsers.valueAt(i).info; 462 if (ui.partial) { 463 continue; 464 } 465 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 466 users.add(userWithName(ui)); 467 } 468 } 469 return users; 470 } 471 } 472 473 @Override 474 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 475 boolean returnFullInfo = true; 476 if (userId != UserHandle.getCallingUserId()) { 477 checkManageUsersPermission("getting profiles related to user " + userId); 478 } else { 479 returnFullInfo = hasManageUsersPermission(); 480 } 481 final long ident = Binder.clearCallingIdentity(); 482 try { 483 synchronized (mUsersLock) { 484 return getProfilesLU(userId, enabledOnly, returnFullInfo); 485 } 486 } finally { 487 Binder.restoreCallingIdentity(ident); 488 } 489 } 490 491 @Override 492 public int[] getProfileIds(int userId, boolean enabledOnly) { 493 if (userId != UserHandle.getCallingUserId()) { 494 checkManageUsersPermission("getting profiles related to user " + userId); 495 } 496 final long ident = Binder.clearCallingIdentity(); 497 try { 498 synchronized (mUsersLock) { 499 return getProfileIdsLU(userId, enabledOnly).toArray(); 500 } 501 } finally { 502 Binder.restoreCallingIdentity(ident); 503 } 504 } 505 506 /** Assume permissions already checked and caller's identity cleared */ 507 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 508 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 509 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 510 for (int i = 0; i < profileIds.size(); i++) { 511 int profileId = profileIds.get(i); 512 UserInfo userInfo = mUsers.get(profileId).info; 513 // If full info is not required - clear PII data to prevent 3P apps from reading it 514 if (!fullInfo) { 515 userInfo = new UserInfo(userInfo); 516 userInfo.name = null; 517 userInfo.iconPath = null; 518 } else { 519 userInfo = userWithName(userInfo); 520 } 521 users.add(userInfo); 522 } 523 return users; 524 } 525 526 /** 527 * Assume permissions already checked and caller's identity cleared 528 */ 529 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 530 UserInfo user = getUserInfoLU(userId); 531 IntArray result = new IntArray(mUsers.size()); 532 if (user == null) { 533 // Probably a dying user 534 return result; 535 } 536 final int userSize = mUsers.size(); 537 for (int i = 0; i < userSize; i++) { 538 UserInfo profile = mUsers.valueAt(i).info; 539 if (!isProfileOf(user, profile)) { 540 continue; 541 } 542 if (enabledOnly && !profile.isEnabled()) { 543 continue; 544 } 545 if (mRemovingUserIds.get(profile.id)) { 546 continue; 547 } 548 if (profile.partial) { 549 continue; 550 } 551 result.add(profile.id); 552 } 553 return result; 554 } 555 556 @Override 557 public int getCredentialOwnerProfile(int userHandle) { 558 checkManageUsersPermission("get the credential owner"); 559 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 560 synchronized (mUsersLock) { 561 UserInfo profileParent = getProfileParentLU(userHandle); 562 if (profileParent != null) { 563 return profileParent.id; 564 } 565 } 566 } 567 568 return userHandle; 569 } 570 571 @Override 572 public boolean isSameProfileGroup(int userId, int otherUserId) { 573 if (userId == otherUserId) return true; 574 checkManageUsersPermission("check if in the same profile group"); 575 synchronized (mPackagesLock) { 576 return isSameProfileGroupLP(userId, otherUserId); 577 } 578 } 579 580 private boolean isSameProfileGroupLP(int userId, int otherUserId) { 581 synchronized (mUsersLock) { 582 UserInfo userInfo = getUserInfoLU(userId); 583 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 584 return false; 585 } 586 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 587 if (otherUserInfo == null 588 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 589 return false; 590 } 591 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 592 } 593 } 594 595 @Override 596 public UserInfo getProfileParent(int userHandle) { 597 checkManageUsersPermission("get the profile parent"); 598 synchronized (mUsersLock) { 599 return getProfileParentLU(userHandle); 600 } 601 } 602 603 private UserInfo getProfileParentLU(int userHandle) { 604 UserInfo profile = getUserInfoLU(userHandle); 605 if (profile == null) { 606 return null; 607 } 608 int parentUserId = profile.profileGroupId; 609 if (parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 610 return null; 611 } else { 612 return getUserInfoLU(parentUserId); 613 } 614 } 615 616 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 617 return user.id == profile.id || 618 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 619 && user.profileGroupId == profile.profileGroupId); 620 } 621 622 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 623 UserHandle parentHandle, boolean inQuietMode) { 624 Intent intent = new Intent(); 625 if (inQuietMode) { 626 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 627 } else { 628 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 629 } 630 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 631 intent.putExtra(Intent.EXTRA_USER, profileHandle); 632 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 633 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 634 mContext.sendBroadcastAsUser(intent, parentHandle); 635 } 636 637 @Override 638 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { 639 checkManageUsersPermission("silence profile"); 640 boolean changed = false; 641 UserInfo profile, parent; 642 synchronized (mPackagesLock) { 643 synchronized (mUsersLock) { 644 profile = getUserInfoLU(userHandle); 645 parent = getProfileParentLU(userHandle); 646 647 } 648 if (profile == null || !profile.isManagedProfile()) { 649 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 650 } 651 if (profile.isQuietModeEnabled() != enableQuietMode) { 652 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 653 writeUserLP(getUserDataLU(profile.id)); 654 changed = true; 655 } 656 } 657 if (changed) { 658 long identity = Binder.clearCallingIdentity(); 659 try { 660 if (enableQuietMode) { 661 LocalServices.getService(ActivityManagerInternal.class) 662 .killForegroundAppsForUser(userHandle); 663 ActivityManagerNative.getDefault().stopUser(userHandle, /* force */true, null); 664 } else { 665 ActivityManagerNative.getDefault().startUserInBackground(userHandle); 666 } 667 } catch (RemoteException e) { 668 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 669 } finally { 670 Binder.restoreCallingIdentity(identity); 671 } 672 673 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 674 enableQuietMode); 675 } 676 } 677 678 @Override 679 public boolean isQuietModeEnabled(int userHandle) { 680 synchronized (mPackagesLock) { 681 UserInfo info; 682 synchronized (mUsersLock) { 683 info = getUserInfoLU(userHandle); 684 } 685 if (info == null || !info.isManagedProfile()) { 686 return false; 687 } 688 return info.isQuietModeEnabled(); 689 } 690 } 691 692 @Override 693 public boolean trySetQuietModeDisabled(int userHandle, IntentSender target) { 694 final int credentialOwnerUserId = getCredentialOwnerProfile(userHandle); 695 if (StorageManager.isUserKeyUnlocked(userHandle) 696 || !mLockPatternUtils.isSecure(credentialOwnerUserId)) { 697 // if the user is already unlocked, no need to show a profile challenge 698 setQuietModeEnabled(userHandle, false); 699 return true; 700 } 701 702 long identity = Binder.clearCallingIdentity(); 703 try { 704 // otherwise, we show a profile challenge to trigger decryption of the user 705 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 706 Context.KEYGUARD_SERVICE); 707 // We should use userHandle not credentialOwnerUserId here, as even if it is unified 708 // lock, confirm screenlock page will know and show personal challenge, and unlock 709 // work profile when personal challenge is correct 710 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 711 userHandle); 712 if (unlockIntent == null) { 713 return false; 714 } 715 if (target != null) { 716 unlockIntent.putExtra(Intent.EXTRA_INTENT, target); 717 } 718 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 719 mContext.startActivity(unlockIntent); 720 } finally { 721 Binder.restoreCallingIdentity(identity); 722 } 723 return false; 724 } 725 726 @Override 727 public void setUserEnabled(int userId) { 728 checkManageUsersPermission("enable user"); 729 synchronized (mPackagesLock) { 730 UserInfo info; 731 synchronized (mUsersLock) { 732 info = getUserInfoLU(userId); 733 } 734 if (info != null && !info.isEnabled()) { 735 info.flags ^= UserInfo.FLAG_DISABLED; 736 writeUserLP(getUserDataLU(info.id)); 737 } 738 } 739 } 740 741 @Override 742 public UserInfo getUserInfo(int userId) { 743 checkManageUsersPermission("query user"); 744 synchronized (mUsersLock) { 745 return userWithName(getUserInfoLU(userId)); 746 } 747 } 748 749 /** 750 * Returns a UserInfo object with the name filled in, for Owner, or the original 751 * if the name is already set. 752 */ 753 private UserInfo userWithName(UserInfo orig) { 754 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 755 UserInfo withName = new UserInfo(orig); 756 withName.name = getOwnerName(); 757 return withName; 758 } else { 759 return orig; 760 } 761 } 762 763 @Override 764 public boolean isManagedProfile(int userId) { 765 int callingUserId = UserHandle.getCallingUserId(); 766 if (callingUserId != userId && !hasManageUsersPermission()) { 767 synchronized (mPackagesLock) { 768 if (!isSameProfileGroupLP(callingUserId, userId)) { 769 throw new SecurityException( 770 "You need MANAGE_USERS permission to: check if specified user a " + 771 "managed profile outside your profile group"); 772 } 773 } 774 } 775 synchronized (mUsersLock) { 776 UserInfo userInfo = getUserInfoLU(userId); 777 return userInfo != null && userInfo.isManagedProfile(); 778 } 779 } 780 781 @Override 782 public boolean isRestricted() { 783 synchronized (mUsersLock) { 784 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 785 } 786 } 787 788 @Override 789 public boolean canHaveRestrictedProfile(int userId) { 790 checkManageUsersPermission("canHaveRestrictedProfile"); 791 synchronized (mUsersLock) { 792 final UserInfo userInfo = getUserInfoLU(userId); 793 if (userInfo == null || !userInfo.canHaveProfile()) { 794 return false; 795 } 796 if (!userInfo.isAdmin()) { 797 return false; 798 } 799 // restricted profile can be created if there is no DO set and the admin user has no PO; 800 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 801 } 802 } 803 804 /* 805 * Should be locked on mUsers before calling this. 806 */ 807 private UserInfo getUserInfoLU(int userId) { 808 final UserData userData = mUsers.get(userId); 809 // If it is partial and not in the process of being removed, return as unknown user. 810 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 811 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 812 return null; 813 } 814 return userData != null ? userData.info : null; 815 } 816 817 private UserData getUserDataLU(int userId) { 818 final UserData userData = mUsers.get(userId); 819 // If it is partial and not in the process of being removed, return as unknown user. 820 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 821 return null; 822 } 823 return userData; 824 } 825 826 /** 827 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 828 * <p>No permissions checking or any addition checks are made</p> 829 */ 830 private UserInfo getUserInfoNoChecks(int userId) { 831 synchronized (mUsersLock) { 832 final UserData userData = mUsers.get(userId); 833 return userData != null ? userData.info : null; 834 } 835 } 836 837 /** 838 * Obtains {@link #mUsersLock} and return UserData from mUsers. 839 * <p>No permissions checking or any addition checks are made</p> 840 */ 841 private UserData getUserDataNoChecks(int userId) { 842 synchronized (mUsersLock) { 843 return mUsers.get(userId); 844 } 845 } 846 847 /** Called by PackageManagerService */ 848 public boolean exists(int userId) { 849 return getUserInfoNoChecks(userId) != null; 850 } 851 852 @Override 853 public void setUserName(int userId, String name) { 854 checkManageUsersPermission("rename users"); 855 boolean changed = false; 856 synchronized (mPackagesLock) { 857 UserData userData = getUserDataNoChecks(userId); 858 if (userData == null || userData.info.partial) { 859 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 860 return; 861 } 862 if (name != null && !name.equals(userData.info.name)) { 863 userData.info.name = name; 864 writeUserLP(userData); 865 changed = true; 866 } 867 } 868 if (changed) { 869 sendUserInfoChangedBroadcast(userId); 870 } 871 } 872 873 @Override 874 public void setUserIcon(int userId, Bitmap bitmap) { 875 checkManageUsersPermission("update users"); 876 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 877 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 878 return; 879 } 880 mLocalService.setUserIcon(userId, bitmap); 881 } 882 883 884 885 private void sendUserInfoChangedBroadcast(int userId) { 886 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 887 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 888 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 889 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 890 } 891 892 @Override 893 public ParcelFileDescriptor getUserIcon(int targetUserId) { 894 String iconPath; 895 synchronized (mPackagesLock) { 896 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 897 if (targetUserInfo == null || targetUserInfo.partial) { 898 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 899 return null; 900 } 901 902 final int callingUserId = UserHandle.getCallingUserId(); 903 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 904 final int targetGroupId = targetUserInfo.profileGroupId; 905 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 906 && callingGroupId == targetGroupId); 907 if ((callingUserId != targetUserId) && !sameGroup) { 908 checkManageUsersPermission("get the icon of a user who is not related"); 909 } 910 911 if (targetUserInfo.iconPath == null) { 912 return null; 913 } 914 iconPath = targetUserInfo.iconPath; 915 } 916 917 try { 918 return ParcelFileDescriptor.open( 919 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 920 } catch (FileNotFoundException e) { 921 Log.e(LOG_TAG, "Couldn't find icon file", e); 922 } 923 return null; 924 } 925 926 public void makeInitialized(int userId) { 927 checkManageUsersPermission("makeInitialized"); 928 boolean scheduleWriteUser = false; 929 UserData userData; 930 synchronized (mUsersLock) { 931 userData = mUsers.get(userId); 932 if (userData == null || userData.info.partial) { 933 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 934 return; 935 } 936 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 937 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 938 scheduleWriteUser = true; 939 } 940 } 941 if (scheduleWriteUser) { 942 scheduleWriteUser(userData); 943 } 944 } 945 946 /** 947 * If default guest restrictions haven't been initialized yet, add the basic 948 * restrictions. 949 */ 950 private void initDefaultGuestRestrictions() { 951 synchronized (mGuestRestrictions) { 952 if (mGuestRestrictions.isEmpty()) { 953 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 954 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 955 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 956 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 957 } 958 } 959 } 960 961 @Override 962 public Bundle getDefaultGuestRestrictions() { 963 checkManageUsersPermission("getDefaultGuestRestrictions"); 964 synchronized (mGuestRestrictions) { 965 return new Bundle(mGuestRestrictions); 966 } 967 } 968 969 @Override 970 public void setDefaultGuestRestrictions(Bundle restrictions) { 971 checkManageUsersPermission("setDefaultGuestRestrictions"); 972 synchronized (mGuestRestrictions) { 973 mGuestRestrictions.clear(); 974 mGuestRestrictions.putAll(restrictions); 975 } 976 synchronized (mPackagesLock) { 977 writeUserListLP(); 978 } 979 } 980 981 /** 982 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions(int, Bundle, Bundle)} 983 */ 984 void setDevicePolicyUserRestrictionsInner(int userId, @NonNull Bundle local, 985 @Nullable Bundle global) { 986 Preconditions.checkNotNull(local); 987 boolean globalChanged = false; 988 boolean localChanged; 989 synchronized (mRestrictionsLock) { 990 if (global != null) { 991 // Update global. 992 globalChanged = !UserRestrictionsUtils.areEqual( 993 mDevicePolicyGlobalUserRestrictions, global); 994 if (globalChanged) { 995 mDevicePolicyGlobalUserRestrictions = global; 996 } 997 } 998 { 999 // Update local. 1000 final Bundle prev = mDevicePolicyLocalUserRestrictions.get(userId); 1001 localChanged = !UserRestrictionsUtils.areEqual(prev, local); 1002 if (localChanged) { 1003 mDevicePolicyLocalUserRestrictions.put(userId, local); 1004 } 1005 } 1006 } 1007 if (DBG) { 1008 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1009 + " global=" + global + (globalChanged ? " (changed)" : "") 1010 + " local=" + local + (localChanged ? " (changed)" : "") 1011 ); 1012 } 1013 // Don't call them within the mRestrictionsLock. 1014 synchronized (mPackagesLock) { 1015 if (localChanged) { 1016 writeUserLP(getUserDataNoChecks(userId)); 1017 } 1018 if (globalChanged) { 1019 writeUserListLP(); 1020 } 1021 } 1022 1023 synchronized (mRestrictionsLock) { 1024 if (globalChanged) { 1025 applyUserRestrictionsForAllUsersLR(); 1026 } else if (localChanged) { 1027 applyUserRestrictionsLR(userId); 1028 } 1029 } 1030 } 1031 1032 @GuardedBy("mRestrictionsLock") 1033 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1034 final Bundle baseRestrictions = 1035 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1036 final Bundle global = mDevicePolicyGlobalUserRestrictions; 1037 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1038 1039 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1040 // Common case first. 1041 return baseRestrictions; 1042 } 1043 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1044 UserRestrictionsUtils.merge(effective, global); 1045 UserRestrictionsUtils.merge(effective, local); 1046 1047 return effective; 1048 } 1049 1050 @GuardedBy("mRestrictionsLock") 1051 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1052 if (DBG) { 1053 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1054 } 1055 mCachedEffectiveUserRestrictions.remove(userId); 1056 } 1057 1058 private Bundle getEffectiveUserRestrictions(int userId) { 1059 synchronized (mRestrictionsLock) { 1060 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1061 if (restrictions == null) { 1062 restrictions = computeEffectiveUserRestrictionsLR(userId); 1063 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1064 } 1065 return restrictions; 1066 } 1067 } 1068 1069 /** @return a specific user restriction that's in effect currently. */ 1070 @Override 1071 public boolean hasUserRestriction(String restrictionKey, int userId) { 1072 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1073 return false; 1074 } 1075 Bundle restrictions = getEffectiveUserRestrictions(userId); 1076 return restrictions != null && restrictions.getBoolean(restrictionKey); 1077 } 1078 1079 /** 1080 * @return UserRestrictions that are in effect currently. This always returns a new 1081 * {@link Bundle}. 1082 */ 1083 @Override 1084 public Bundle getUserRestrictions(int userId) { 1085 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1086 } 1087 1088 @Override 1089 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1090 checkManageUsersPermission("hasBaseUserRestriction"); 1091 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1092 return false; 1093 } 1094 synchronized (mRestrictionsLock) { 1095 Bundle bundle = mBaseUserRestrictions.get(userId); 1096 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1097 } 1098 } 1099 1100 @Override 1101 public void setUserRestriction(String key, boolean value, int userId) { 1102 checkManageUsersPermission("setUserRestriction"); 1103 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1104 return; 1105 } 1106 synchronized (mRestrictionsLock) { 1107 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1108 // a copy. 1109 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1110 mBaseUserRestrictions.get(userId)); 1111 newRestrictions.putBoolean(key, value); 1112 1113 updateUserRestrictionsInternalLR(newRestrictions, userId); 1114 } 1115 } 1116 1117 /** 1118 * Optionally updating user restrictions, calculate the effective user restrictions and also 1119 * propagate to other services and system settings. 1120 * 1121 * @param newRestrictions User restrictions to set. 1122 * If null, will not update user restrictions and only does the propagation. 1123 * @param userId target user ID. 1124 */ 1125 @GuardedBy("mRestrictionsLock") 1126 private void updateUserRestrictionsInternalLR( 1127 @Nullable Bundle newRestrictions, int userId) { 1128 1129 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1130 mAppliedUserRestrictions.get(userId)); 1131 1132 // Update base restrictions. 1133 if (newRestrictions != null) { 1134 // If newRestrictions == the current one, it's probably a bug. 1135 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1136 1137 Preconditions.checkState(prevBaseRestrictions != newRestrictions); 1138 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1139 != newRestrictions); 1140 1141 if (!UserRestrictionsUtils.areEqual(prevBaseRestrictions, newRestrictions)) { 1142 mBaseUserRestrictions.put(userId, newRestrictions); 1143 scheduleWriteUser(getUserDataNoChecks(userId)); 1144 } 1145 } 1146 1147 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1148 1149 mCachedEffectiveUserRestrictions.put(userId, effective); 1150 1151 // Apply the new restrictions. 1152 if (DBG) { 1153 debug("Applying user restrictions: userId=" + userId 1154 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1155 } 1156 1157 if (mAppOpsService != null) { // We skip it until system-ready. 1158 final long token = Binder.clearCallingIdentity(); 1159 try { 1160 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1161 } catch (RemoteException e) { 1162 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1163 } finally { 1164 Binder.restoreCallingIdentity(token); 1165 } 1166 } 1167 1168 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1169 1170 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1171 } 1172 1173 private void propagateUserRestrictionsLR(final int userId, 1174 Bundle newRestrictions, Bundle prevRestrictions) { 1175 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1176 // actually, but we still need some kind of synchronization otherwise we might end up 1177 // calling listeners out-of-order, thus "LR". 1178 1179 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1180 return; 1181 } 1182 1183 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1184 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1185 1186 mHandler.post(new Runnable() { 1187 @Override 1188 public void run() { 1189 UserRestrictionsUtils.applyUserRestrictions( 1190 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1191 1192 final UserRestrictionsListener[] listeners; 1193 synchronized (mUserRestrictionsListeners) { 1194 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1195 mUserRestrictionsListeners.toArray(listeners); 1196 } 1197 for (int i = 0; i < listeners.length; i++) { 1198 listeners[i].onUserRestrictionsChanged(userId, 1199 newRestrictionsFinal, prevRestrictionsFinal); 1200 } 1201 } 1202 }); 1203 } 1204 1205 // Package private for the inner class. 1206 void applyUserRestrictionsLR(int userId) { 1207 updateUserRestrictionsInternalLR(null, userId); 1208 } 1209 1210 @GuardedBy("mRestrictionsLock") 1211 // Package private for the inner class. 1212 void applyUserRestrictionsForAllUsersLR() { 1213 if (DBG) { 1214 debug("applyUserRestrictionsForAllUsersLR"); 1215 } 1216 // First, invalidate all cached values. 1217 mCachedEffectiveUserRestrictions.clear(); 1218 1219 // We don't want to call into ActivityManagerNative while taking a lock, so we'll call 1220 // it on a handler. 1221 final Runnable r = new Runnable() { 1222 @Override 1223 public void run() { 1224 // Then get the list of running users. 1225 final int[] runningUsers; 1226 try { 1227 runningUsers = ActivityManagerNative.getDefault().getRunningUserIds(); 1228 } catch (RemoteException e) { 1229 Log.w(LOG_TAG, "Unable to access ActivityManagerNative"); 1230 return; 1231 } 1232 // Then re-calculate the effective restrictions and apply, only for running users. 1233 // It's okay if a new user has started after the getRunningUserIds() call, 1234 // because we'll do the same thing (re-calculate the restrictions and apply) 1235 // when we start a user. 1236 synchronized (mRestrictionsLock) { 1237 for (int i = 0; i < runningUsers.length; i++) { 1238 applyUserRestrictionsLR(runningUsers[i]); 1239 } 1240 } 1241 } 1242 }; 1243 mHandler.post(r); 1244 } 1245 1246 /** 1247 * Check if we've hit the limit of how many users can be created. 1248 */ 1249 private boolean isUserLimitReached() { 1250 int count; 1251 synchronized (mUsersLock) { 1252 count = getAliveUsersExcludingGuestsCountLU(); 1253 } 1254 return count >= UserManager.getMaxSupportedUsers(); 1255 } 1256 1257 @Override 1258 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1259 checkManageUsersPermission("check if more managed profiles can be added."); 1260 if (ActivityManager.isLowRamDeviceStatic()) { 1261 return false; 1262 } 1263 if (!mContext.getPackageManager().hasSystemFeature( 1264 PackageManager.FEATURE_MANAGED_USERS)) { 1265 return false; 1266 } 1267 // Limit number of managed profiles that can be created 1268 final int managedProfilesCount = getProfiles(userId, true).size() - 1; 1269 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1270 if (managedProfilesCount - profilesRemovedCount >= MAX_MANAGED_PROFILES) { 1271 return false; 1272 } 1273 synchronized(mUsersLock) { 1274 UserInfo userInfo = getUserInfoLU(userId); 1275 if (!userInfo.canHaveProfile()) { 1276 return false; 1277 } 1278 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1279 - profilesRemovedCount; 1280 // We allow creating a managed profile in the special case where there is only one user. 1281 return usersCountAfterRemoving == 1 1282 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1283 } 1284 } 1285 1286 private int getAliveUsersExcludingGuestsCountLU() { 1287 int aliveUserCount = 0; 1288 final int totalUserCount = mUsers.size(); 1289 // Skip over users being removed 1290 for (int i = 0; i < totalUserCount; i++) { 1291 UserInfo user = mUsers.valueAt(i).info; 1292 if (!mRemovingUserIds.get(user.id) 1293 && !user.isGuest() && !user.partial) { 1294 aliveUserCount++; 1295 } 1296 } 1297 return aliveUserCount; 1298 } 1299 1300 /** 1301 * Enforces that only the system UID or root's UID or apps that have the 1302 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1303 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1304 * permissions can make certain calls to the UserManager. 1305 * 1306 * @param message used as message if SecurityException is thrown 1307 * @throws SecurityException if the caller does not have enough privilege. 1308 */ 1309 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1310 final int uid = Binder.getCallingUid(); 1311 if (uid != Process.SYSTEM_UID && uid != 0 1312 && ActivityManager.checkComponentPermission( 1313 Manifest.permission.MANAGE_USERS, 1314 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1315 && ActivityManager.checkComponentPermission( 1316 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1317 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1318 throw new SecurityException( 1319 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1320 + message); 1321 } 1322 } 1323 1324 /** 1325 * Enforces that only the system UID or root's UID or apps that have the 1326 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1327 * permission can make certain calls to the UserManager. 1328 * 1329 * @param message used as message if SecurityException is thrown 1330 * @throws SecurityException if the caller is not system or root 1331 * @see #hasManageUsersPermission() 1332 */ 1333 private static final void checkManageUsersPermission(String message) { 1334 if (!hasManageUsersPermission()) { 1335 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1336 } 1337 } 1338 1339 /** 1340 * @return whether the calling UID is system UID or root's UID or the calling app has the 1341 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1342 */ 1343 private static final boolean hasManageUsersPermission() { 1344 final int callingUid = Binder.getCallingUid(); 1345 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1346 || callingUid == Process.ROOT_UID 1347 || ActivityManager.checkComponentPermission( 1348 android.Manifest.permission.MANAGE_USERS, 1349 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1350 } 1351 1352 /** 1353 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1354 * UserManager. 1355 * 1356 * @param message used as message if SecurityException is thrown 1357 * @throws SecurityException if the caller is not system or root 1358 */ 1359 private static void checkSystemOrRoot(String message) { 1360 final int uid = Binder.getCallingUid(); 1361 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1362 throw new SecurityException("Only system may: " + message); 1363 } 1364 } 1365 1366 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1367 try { 1368 File dir = new File(mUsersDir, Integer.toString(info.id)); 1369 File file = new File(dir, USER_PHOTO_FILENAME); 1370 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1371 if (!dir.exists()) { 1372 dir.mkdir(); 1373 FileUtils.setPermissions( 1374 dir.getPath(), 1375 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1376 -1, -1); 1377 } 1378 FileOutputStream os; 1379 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1380 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1381 info.iconPath = file.getAbsolutePath(); 1382 } 1383 try { 1384 os.close(); 1385 } catch (IOException ioe) { 1386 // What the ... ! 1387 } 1388 tmp.delete(); 1389 } catch (FileNotFoundException e) { 1390 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1391 } 1392 } 1393 1394 /** 1395 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1396 * cache it elsewhere. 1397 * @return the array of user ids. 1398 */ 1399 public int[] getUserIds() { 1400 synchronized (mUsersLock) { 1401 return mUserIds; 1402 } 1403 } 1404 1405 private void readUserListLP() { 1406 if (!mUserListFile.exists()) { 1407 fallbackToSingleUserLP(); 1408 return; 1409 } 1410 FileInputStream fis = null; 1411 AtomicFile userListFile = new AtomicFile(mUserListFile); 1412 try { 1413 fis = userListFile.openRead(); 1414 XmlPullParser parser = Xml.newPullParser(); 1415 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1416 int type; 1417 while ((type = parser.next()) != XmlPullParser.START_TAG 1418 && type != XmlPullParser.END_DOCUMENT) { 1419 // Skip 1420 } 1421 1422 if (type != XmlPullParser.START_TAG) { 1423 Slog.e(LOG_TAG, "Unable to read user list"); 1424 fallbackToSingleUserLP(); 1425 return; 1426 } 1427 1428 mNextSerialNumber = -1; 1429 if (parser.getName().equals(TAG_USERS)) { 1430 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1431 if (lastSerialNumber != null) { 1432 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1433 } 1434 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1435 if (versionNumber != null) { 1436 mUserVersion = Integer.parseInt(versionNumber); 1437 } 1438 } 1439 1440 final Bundle newDevicePolicyGlobalUserRestrictions = new Bundle(); 1441 1442 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1443 if (type == XmlPullParser.START_TAG) { 1444 final String name = parser.getName(); 1445 if (name.equals(TAG_USER)) { 1446 String id = parser.getAttributeValue(null, ATTR_ID); 1447 1448 UserData userData = readUserLP(Integer.parseInt(id)); 1449 1450 if (userData != null) { 1451 synchronized (mUsersLock) { 1452 mUsers.put(userData.info.id, userData); 1453 if (mNextSerialNumber < 0 1454 || mNextSerialNumber <= userData.info.id) { 1455 mNextSerialNumber = userData.info.id + 1; 1456 } 1457 } 1458 } 1459 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1460 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1461 && type != XmlPullParser.END_TAG) { 1462 if (type == XmlPullParser.START_TAG) { 1463 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1464 synchronized (mGuestRestrictions) { 1465 UserRestrictionsUtils 1466 .readRestrictions(parser, mGuestRestrictions); 1467 } 1468 } else if (parser.getName().equals(TAG_DEVICE_POLICY_RESTRICTIONS) 1469 ) { 1470 UserRestrictionsUtils.readRestrictions(parser, 1471 newDevicePolicyGlobalUserRestrictions); 1472 } 1473 break; 1474 } 1475 } 1476 } 1477 } 1478 } 1479 synchronized (mRestrictionsLock) { 1480 mDevicePolicyGlobalUserRestrictions = newDevicePolicyGlobalUserRestrictions; 1481 } 1482 updateUserIds(); 1483 upgradeIfNecessaryLP(); 1484 } catch (IOException | XmlPullParserException e) { 1485 fallbackToSingleUserLP(); 1486 } finally { 1487 IoUtils.closeQuietly(fis); 1488 } 1489 } 1490 1491 /** 1492 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1493 */ 1494 private void upgradeIfNecessaryLP() { 1495 final int originalVersion = mUserVersion; 1496 int userVersion = mUserVersion; 1497 if (userVersion < 1) { 1498 // Assign a proper name for the owner, if not initialized correctly before 1499 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1500 if ("Primary".equals(userData.info.name)) { 1501 userData.info.name = 1502 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1503 scheduleWriteUser(userData); 1504 } 1505 userVersion = 1; 1506 } 1507 1508 if (userVersion < 2) { 1509 // Owner should be marked as initialized 1510 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1511 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1512 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1513 scheduleWriteUser(userData); 1514 } 1515 userVersion = 2; 1516 } 1517 1518 1519 if (userVersion < 4) { 1520 userVersion = 4; 1521 } 1522 1523 if (userVersion < 5) { 1524 initDefaultGuestRestrictions(); 1525 userVersion = 5; 1526 } 1527 1528 if (userVersion < 6) { 1529 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1530 synchronized (mUsersLock) { 1531 for (int i = 0; i < mUsers.size(); i++) { 1532 UserData userData = mUsers.valueAt(i); 1533 // In non-split mode, only user 0 can have restricted profiles 1534 if (!splitSystemUser && userData.info.isRestricted() 1535 && (userData.info.restrictedProfileParentId 1536 == UserInfo.NO_PROFILE_GROUP_ID)) { 1537 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1538 scheduleWriteUser(userData); 1539 } 1540 } 1541 } 1542 userVersion = 6; 1543 } 1544 1545 if (userVersion < USER_VERSION) { 1546 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1547 + USER_VERSION); 1548 } else { 1549 mUserVersion = userVersion; 1550 1551 if (originalVersion < mUserVersion) { 1552 writeUserListLP(); 1553 } 1554 } 1555 } 1556 1557 private void fallbackToSingleUserLP() { 1558 int flags = UserInfo.FLAG_INITIALIZED; 1559 // In split system user mode, the admin and primary flags are assigned to the first human 1560 // user. 1561 if (!UserManager.isSplitSystemUser()) { 1562 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1563 } 1564 // Create the system user 1565 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 1566 UserData userData = new UserData(); 1567 userData.info = system; 1568 synchronized (mUsersLock) { 1569 mUsers.put(system.id, userData); 1570 } 1571 mNextSerialNumber = MIN_USER_ID; 1572 mUserVersion = USER_VERSION; 1573 1574 Bundle restrictions = new Bundle(); 1575 synchronized (mRestrictionsLock) { 1576 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1577 } 1578 1579 updateUserIds(); 1580 initDefaultGuestRestrictions(); 1581 1582 writeUserLP(userData); 1583 writeUserListLP(); 1584 } 1585 1586 private String getOwnerName() { 1587 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 1588 } 1589 1590 private void scheduleWriteUser(UserData UserData) { 1591 if (DBG) { 1592 debug("scheduleWriteUser"); 1593 } 1594 // No need to wrap it within a lock -- worst case, we'll just post the same message 1595 // twice. 1596 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 1597 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 1598 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1599 } 1600 } 1601 1602 /* 1603 * Writes the user file in this format: 1604 * 1605 * <user flags="20039023" id="0"> 1606 * <name>Primary</name> 1607 * </user> 1608 */ 1609 private void writeUserLP(UserData userData) { 1610 if (DBG) { 1611 debug("writeUserLP " + userData); 1612 } 1613 FileOutputStream fos = null; 1614 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 1615 try { 1616 fos = userFile.startWrite(); 1617 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1618 1619 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1620 final XmlSerializer serializer = new FastXmlSerializer(); 1621 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1622 serializer.startDocument(null, true); 1623 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1624 1625 final UserInfo userInfo = userData.info; 1626 serializer.startTag(null, TAG_USER); 1627 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 1628 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 1629 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 1630 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 1631 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 1632 Long.toString(userInfo.lastLoggedInTime)); 1633 if (userInfo.lastLoggedInFingerprint != null) { 1634 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 1635 userInfo.lastLoggedInFingerprint); 1636 } 1637 if (userInfo.iconPath != null) { 1638 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 1639 } 1640 if (userInfo.partial) { 1641 serializer.attribute(null, ATTR_PARTIAL, "true"); 1642 } 1643 if (userInfo.guestToRemove) { 1644 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 1645 } 1646 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 1647 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 1648 Integer.toString(userInfo.profileGroupId)); 1649 } 1650 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 1651 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 1652 Integer.toString(userInfo.restrictedProfileParentId)); 1653 } 1654 // Write seed data 1655 if (userData.persistSeedData) { 1656 if (userData.seedAccountName != null) { 1657 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 1658 } 1659 if (userData.seedAccountType != null) { 1660 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 1661 } 1662 } 1663 if (userInfo.name != null) { 1664 serializer.startTag(null, TAG_NAME); 1665 serializer.text(userInfo.name); 1666 serializer.endTag(null, TAG_NAME); 1667 } 1668 synchronized (mRestrictionsLock) { 1669 UserRestrictionsUtils.writeRestrictions(serializer, 1670 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 1671 UserRestrictionsUtils.writeRestrictions(serializer, 1672 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 1673 TAG_DEVICE_POLICY_RESTRICTIONS); 1674 } 1675 1676 if (userData.account != null) { 1677 serializer.startTag(null, TAG_ACCOUNT); 1678 serializer.text(userData.account); 1679 serializer.endTag(null, TAG_ACCOUNT); 1680 } 1681 1682 if (userData.persistSeedData && userData.seedAccountOptions != null) { 1683 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1684 userData.seedAccountOptions.saveToXml(serializer); 1685 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1686 } 1687 serializer.endTag(null, TAG_USER); 1688 1689 serializer.endDocument(); 1690 userFile.finishWrite(fos); 1691 } catch (Exception ioe) { 1692 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 1693 userFile.failWrite(fos); 1694 } 1695 } 1696 1697 /* 1698 * Writes the user list file in this format: 1699 * 1700 * <users nextSerialNumber="3"> 1701 * <user id="0"></user> 1702 * <user id="2"></user> 1703 * </users> 1704 */ 1705 private void writeUserListLP() { 1706 if (DBG) { 1707 debug("writeUserList"); 1708 } 1709 FileOutputStream fos = null; 1710 AtomicFile userListFile = new AtomicFile(mUserListFile); 1711 try { 1712 fos = userListFile.startWrite(); 1713 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1714 1715 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1716 final XmlSerializer serializer = new FastXmlSerializer(); 1717 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1718 serializer.startDocument(null, true); 1719 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1720 1721 serializer.startTag(null, TAG_USERS); 1722 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 1723 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 1724 1725 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 1726 synchronized (mGuestRestrictions) { 1727 UserRestrictionsUtils 1728 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 1729 } 1730 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 1731 synchronized (mRestrictionsLock) { 1732 UserRestrictionsUtils.writeRestrictions(serializer, 1733 mDevicePolicyGlobalUserRestrictions, TAG_DEVICE_POLICY_RESTRICTIONS); 1734 } 1735 int[] userIdsToWrite; 1736 synchronized (mUsersLock) { 1737 userIdsToWrite = new int[mUsers.size()]; 1738 for (int i = 0; i < userIdsToWrite.length; i++) { 1739 UserInfo user = mUsers.valueAt(i).info; 1740 userIdsToWrite[i] = user.id; 1741 } 1742 } 1743 for (int id : userIdsToWrite) { 1744 serializer.startTag(null, TAG_USER); 1745 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 1746 serializer.endTag(null, TAG_USER); 1747 } 1748 1749 serializer.endTag(null, TAG_USERS); 1750 1751 serializer.endDocument(); 1752 userListFile.finishWrite(fos); 1753 } catch (Exception e) { 1754 userListFile.failWrite(fos); 1755 Slog.e(LOG_TAG, "Error writing user list"); 1756 } 1757 } 1758 1759 private UserData readUserLP(int id) { 1760 int flags = 0; 1761 int serialNumber = id; 1762 String name = null; 1763 String account = null; 1764 String iconPath = null; 1765 long creationTime = 0L; 1766 long lastLoggedInTime = 0L; 1767 String lastLoggedInFingerprint = null; 1768 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 1769 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 1770 boolean partial = false; 1771 boolean guestToRemove = false; 1772 boolean persistSeedData = false; 1773 String seedAccountName = null; 1774 String seedAccountType = null; 1775 PersistableBundle seedAccountOptions = null; 1776 Bundle baseRestrictions = new Bundle(); 1777 Bundle localRestrictions = new Bundle(); 1778 1779 FileInputStream fis = null; 1780 try { 1781 AtomicFile userFile = 1782 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 1783 fis = userFile.openRead(); 1784 XmlPullParser parser = Xml.newPullParser(); 1785 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1786 int type; 1787 while ((type = parser.next()) != XmlPullParser.START_TAG 1788 && type != XmlPullParser.END_DOCUMENT) { 1789 // Skip 1790 } 1791 1792 if (type != XmlPullParser.START_TAG) { 1793 Slog.e(LOG_TAG, "Unable to read user " + id); 1794 return null; 1795 } 1796 1797 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 1798 int storedId = readIntAttribute(parser, ATTR_ID, -1); 1799 if (storedId != id) { 1800 Slog.e(LOG_TAG, "User id does not match the file name"); 1801 return null; 1802 } 1803 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 1804 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 1805 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 1806 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 1807 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 1808 lastLoggedInFingerprint = parser.getAttributeValue(null, 1809 ATTR_LAST_LOGGED_IN_FINGERPRINT); 1810 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 1811 UserInfo.NO_PROFILE_GROUP_ID); 1812 restrictedProfileParentId = readIntAttribute(parser, 1813 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 1814 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 1815 if ("true".equals(valueString)) { 1816 partial = true; 1817 } 1818 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 1819 if ("true".equals(valueString)) { 1820 guestToRemove = true; 1821 } 1822 1823 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 1824 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 1825 if (seedAccountName != null || seedAccountType != null) { 1826 persistSeedData = true; 1827 } 1828 1829 int outerDepth = parser.getDepth(); 1830 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1831 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1832 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1833 continue; 1834 } 1835 String tag = parser.getName(); 1836 if (TAG_NAME.equals(tag)) { 1837 type = parser.next(); 1838 if (type == XmlPullParser.TEXT) { 1839 name = parser.getText(); 1840 } 1841 } else if (TAG_RESTRICTIONS.equals(tag)) { 1842 UserRestrictionsUtils.readRestrictions(parser, baseRestrictions); 1843 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 1844 UserRestrictionsUtils.readRestrictions(parser, localRestrictions); 1845 } else if (TAG_ACCOUNT.equals(tag)) { 1846 type = parser.next(); 1847 if (type == XmlPullParser.TEXT) { 1848 account = parser.getText(); 1849 } 1850 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 1851 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 1852 persistSeedData = true; 1853 } 1854 } 1855 } 1856 1857 // Create the UserInfo object that gets passed around 1858 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 1859 userInfo.serialNumber = serialNumber; 1860 userInfo.creationTime = creationTime; 1861 userInfo.lastLoggedInTime = lastLoggedInTime; 1862 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 1863 userInfo.partial = partial; 1864 userInfo.guestToRemove = guestToRemove; 1865 userInfo.profileGroupId = profileGroupId; 1866 userInfo.restrictedProfileParentId = restrictedProfileParentId; 1867 1868 // Create the UserData object that's internal to this class 1869 UserData userData = new UserData(); 1870 userData.info = userInfo; 1871 userData.account = account; 1872 userData.seedAccountName = seedAccountName; 1873 userData.seedAccountType = seedAccountType; 1874 userData.persistSeedData = persistSeedData; 1875 userData.seedAccountOptions = seedAccountOptions; 1876 1877 synchronized (mRestrictionsLock) { 1878 mBaseUserRestrictions.put(id, baseRestrictions); 1879 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 1880 } 1881 return userData; 1882 } catch (IOException ioe) { 1883 } catch (XmlPullParserException pe) { 1884 } finally { 1885 if (fis != null) { 1886 try { 1887 fis.close(); 1888 } catch (IOException e) { 1889 } 1890 } 1891 } 1892 return null; 1893 } 1894 1895 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 1896 String valueString = parser.getAttributeValue(null, attr); 1897 if (valueString == null) return defaultValue; 1898 try { 1899 return Integer.parseInt(valueString); 1900 } catch (NumberFormatException nfe) { 1901 return defaultValue; 1902 } 1903 } 1904 1905 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 1906 String valueString = parser.getAttributeValue(null, attr); 1907 if (valueString == null) return defaultValue; 1908 try { 1909 return Long.parseLong(valueString); 1910 } catch (NumberFormatException nfe) { 1911 return defaultValue; 1912 } 1913 } 1914 1915 /** 1916 * Removes the app restrictions file for a specific package and user id, if it exists. 1917 */ 1918 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 1919 synchronized (mPackagesLock) { 1920 File dir = Environment.getUserSystemDirectory(userId); 1921 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 1922 if (resFile.exists()) { 1923 resFile.delete(); 1924 } 1925 } 1926 } 1927 1928 @Override 1929 public UserInfo createProfileForUser(String name, int flags, int userId) { 1930 checkManageUsersPermission("Only the system can create users"); 1931 return createUserInternal(name, flags, userId); 1932 } 1933 1934 @Override 1935 public UserInfo createUser(String name, int flags) { 1936 checkManageUsersPermission("Only the system can create users"); 1937 return createUserInternal(name, flags, UserHandle.USER_NULL); 1938 } 1939 1940 private UserInfo createUserInternal(String name, int flags, int parentId) { 1941 if (hasUserRestriction(UserManager.DISALLOW_ADD_USER, UserHandle.getCallingUserId())) { 1942 Log.w(LOG_TAG, "Cannot add user. DISALLOW_ADD_USER is enabled."); 1943 return null; 1944 } 1945 return createUserInternalUnchecked(name, flags, parentId); 1946 } 1947 1948 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId) { 1949 if (ActivityManager.isLowRamDeviceStatic()) { 1950 return null; 1951 } 1952 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 1953 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 1954 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 1955 final long ident = Binder.clearCallingIdentity(); 1956 UserInfo userInfo; 1957 UserData userData; 1958 final int userId; 1959 try { 1960 synchronized (mPackagesLock) { 1961 UserData parent = null; 1962 if (parentId != UserHandle.USER_NULL) { 1963 synchronized (mUsersLock) { 1964 parent = getUserDataLU(parentId); 1965 } 1966 if (parent == null) return null; 1967 } 1968 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 1969 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 1970 return null; 1971 } 1972 if (!isGuest && !isManagedProfile && isUserLimitReached()) { 1973 // If we're not adding a guest user or a managed profile and the limit has 1974 // been reached, cannot add a user. 1975 return null; 1976 } 1977 // If we're adding a guest and there already exists one, bail. 1978 if (isGuest && findCurrentGuestUser() != null) { 1979 return null; 1980 } 1981 // In legacy mode, restricted profile's parent can only be the owner user 1982 if (isRestricted && !UserManager.isSplitSystemUser() 1983 && (parentId != UserHandle.USER_SYSTEM)) { 1984 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 1985 return null; 1986 } 1987 if (isRestricted && UserManager.isSplitSystemUser()) { 1988 if (parent == null) { 1989 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 1990 + "specified"); 1991 return null; 1992 } 1993 if (!parent.info.canHaveProfile()) { 1994 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 1995 + "created for the specified parent user id " + parentId); 1996 return null; 1997 } 1998 } 1999 if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0) { 2000 Log.e(LOG_TAG, 2001 "Ephemeral users are supported on split-system-user systems only."); 2002 return null; 2003 } 2004 // In split system user mode, we assign the first human user the primary flag. 2005 // And if there is no device owner, we also assign the admin flag to primary user. 2006 if (UserManager.isSplitSystemUser() 2007 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2008 flags |= UserInfo.FLAG_PRIMARY; 2009 synchronized (mUsersLock) { 2010 if (!mIsDeviceManaged) { 2011 flags |= UserInfo.FLAG_ADMIN; 2012 } 2013 } 2014 } 2015 2016 userId = getNextAvailableId(); 2017 Environment.getUserSystemDirectory(userId).mkdirs(); 2018 boolean ephemeralGuests = Resources.getSystem() 2019 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2020 2021 synchronized (mUsersLock) { 2022 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2023 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2024 || (parent != null && parent.info.isEphemeral())) { 2025 flags |= UserInfo.FLAG_EPHEMERAL; 2026 } 2027 2028 userInfo = new UserInfo(userId, name, null, flags); 2029 userInfo.serialNumber = mNextSerialNumber++; 2030 long now = System.currentTimeMillis(); 2031 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2032 userInfo.partial = true; 2033 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2034 userData = new UserData(); 2035 userData.info = userInfo; 2036 mUsers.put(userId, userData); 2037 } 2038 writeUserLP(userData); 2039 writeUserListLP(); 2040 if (parent != null) { 2041 if (isManagedProfile) { 2042 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2043 parent.info.profileGroupId = parent.info.id; 2044 writeUserLP(parent); 2045 } 2046 userInfo.profileGroupId = parent.info.profileGroupId; 2047 } else if (isRestricted) { 2048 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2049 parent.info.restrictedProfileParentId = parent.info.id; 2050 writeUserLP(parent); 2051 } 2052 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2053 } 2054 } 2055 } 2056 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2057 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2058 mPm.prepareUserData(userId, userInfo.serialNumber, 2059 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2060 mPm.createNewUser(userId); 2061 userInfo.partial = false; 2062 synchronized (mPackagesLock) { 2063 writeUserLP(userData); 2064 } 2065 updateUserIds(); 2066 Bundle restrictions = new Bundle(); 2067 if (isGuest) { 2068 synchronized (mGuestRestrictions) { 2069 restrictions.putAll(mGuestRestrictions); 2070 } 2071 } 2072 synchronized (mRestrictionsLock) { 2073 mBaseUserRestrictions.append(userId, restrictions); 2074 } 2075 mPm.newUserCreated(userId); 2076 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2077 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2078 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2079 android.Manifest.permission.MANAGE_USERS); 2080 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED : TRON_USER_CREATED, 1); 2081 } finally { 2082 Binder.restoreCallingIdentity(ident); 2083 } 2084 return userInfo; 2085 } 2086 2087 /** 2088 * @hide 2089 */ 2090 @Override 2091 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2092 checkManageUsersPermission("setupRestrictedProfile"); 2093 final UserInfo user = createProfileForUser(name, UserInfo.FLAG_RESTRICTED, parentUserId); 2094 if (user == null) { 2095 return null; 2096 } 2097 long identity = Binder.clearCallingIdentity(); 2098 try { 2099 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2100 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2101 // the putIntForUser() will fail. 2102 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2103 android.provider.Settings.Secure.LOCATION_MODE, 2104 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2105 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2106 } finally { 2107 Binder.restoreCallingIdentity(identity); 2108 } 2109 return user; 2110 } 2111 2112 /** 2113 * Find the current guest user. If the Guest user is partial, 2114 * then do not include it in the results as it is about to die. 2115 */ 2116 private UserInfo findCurrentGuestUser() { 2117 synchronized (mUsersLock) { 2118 final int size = mUsers.size(); 2119 for (int i = 0; i < size; i++) { 2120 final UserInfo user = mUsers.valueAt(i).info; 2121 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2122 return user; 2123 } 2124 } 2125 } 2126 return null; 2127 } 2128 2129 /** 2130 * Mark this guest user for deletion to allow us to create another guest 2131 * and switch to that user before actually removing this guest. 2132 * @param userHandle the userid of the current guest 2133 * @return whether the user could be marked for deletion 2134 */ 2135 @Override 2136 public boolean markGuestForDeletion(int userHandle) { 2137 checkManageUsersPermission("Only the system can remove users"); 2138 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2139 UserManager.DISALLOW_REMOVE_USER, false)) { 2140 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2141 return false; 2142 } 2143 2144 long ident = Binder.clearCallingIdentity(); 2145 try { 2146 final UserData userData; 2147 synchronized (mPackagesLock) { 2148 synchronized (mUsersLock) { 2149 userData = mUsers.get(userHandle); 2150 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2151 return false; 2152 } 2153 } 2154 if (!userData.info.isGuest()) { 2155 return false; 2156 } 2157 // We set this to a guest user that is to be removed. This is a temporary state 2158 // where we are allowed to add new Guest users, even if this one is still not 2159 // removed. This user will still show up in getUserInfo() calls. 2160 // If we don't get around to removing this Guest user, it will be purged on next 2161 // startup. 2162 userData.info.guestToRemove = true; 2163 // Mark it as disabled, so that it isn't returned any more when 2164 // profiles are queried. 2165 userData.info.flags |= UserInfo.FLAG_DISABLED; 2166 writeUserLP(userData); 2167 } 2168 } finally { 2169 Binder.restoreCallingIdentity(ident); 2170 } 2171 return true; 2172 } 2173 2174 /** 2175 * Removes a user and all data directories created for that user. This method should be called 2176 * after the user's processes have been terminated. 2177 * @param userHandle the user's id 2178 */ 2179 @Override 2180 public boolean removeUser(int userHandle) { 2181 checkManageUsersPermission("Only the system can remove users"); 2182 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2183 UserManager.DISALLOW_REMOVE_USER, false)) { 2184 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2185 return false; 2186 } 2187 2188 long ident = Binder.clearCallingIdentity(); 2189 try { 2190 final UserData userData; 2191 int currentUser = ActivityManager.getCurrentUser(); 2192 if (currentUser == userHandle) { 2193 Log.w(LOG_TAG, "Current user cannot be removed"); 2194 return false; 2195 } 2196 synchronized (mPackagesLock) { 2197 synchronized (mUsersLock) { 2198 userData = mUsers.get(userHandle); 2199 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2200 return false; 2201 } 2202 2203 // We remember deleted user IDs to prevent them from being 2204 // reused during the current boot; they can still be reused 2205 // after a reboot. 2206 mRemovingUserIds.put(userHandle, true); 2207 } 2208 2209 try { 2210 mAppOpsService.removeUser(userHandle); 2211 } catch (RemoteException e) { 2212 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2213 } 2214 // Set this to a partially created user, so that the user will be purged 2215 // on next startup, in case the runtime stops now before stopping and 2216 // removing the user completely. 2217 userData.info.partial = true; 2218 // Mark it as disabled, so that it isn't returned any more when 2219 // profiles are queried. 2220 userData.info.flags |= UserInfo.FLAG_DISABLED; 2221 writeUserLP(userData); 2222 } 2223 2224 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2225 && userData.info.isManagedProfile()) { 2226 // Send broadcast to notify system that the user removed was a 2227 // managed user. 2228 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2229 } 2230 2231 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2232 int res; 2233 try { 2234 res = ActivityManagerNative.getDefault().stopUser(userHandle, /* force= */ true, 2235 new IStopUserCallback.Stub() { 2236 @Override 2237 public void userStopped(int userId) { 2238 finishRemoveUser(userId); 2239 } 2240 @Override 2241 public void userStopAborted(int userId) { 2242 } 2243 }); 2244 } catch (RemoteException e) { 2245 return false; 2246 } 2247 return res == ActivityManager.USER_OP_SUCCESS; 2248 } finally { 2249 Binder.restoreCallingIdentity(ident); 2250 } 2251 } 2252 2253 void finishRemoveUser(final int userHandle) { 2254 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2255 // Let other services shutdown any activity and clean up their state before completely 2256 // wiping the user's system directory and removing from the user list 2257 long ident = Binder.clearCallingIdentity(); 2258 try { 2259 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2260 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2261 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2262 android.Manifest.permission.MANAGE_USERS, 2263 2264 new BroadcastReceiver() { 2265 @Override 2266 public void onReceive(Context context, Intent intent) { 2267 if (DBG) { 2268 Slog.i(LOG_TAG, 2269 "USER_REMOVED broadcast sent, cleaning up user data " 2270 + userHandle); 2271 } 2272 new Thread() { 2273 @Override 2274 public void run() { 2275 // Clean up any ActivityManager state 2276 LocalServices.getService(ActivityManagerInternal.class) 2277 .onUserRemoved(userHandle); 2278 removeUserState(userHandle); 2279 } 2280 }.start(); 2281 } 2282 }, 2283 2284 null, Activity.RESULT_OK, null, null); 2285 } finally { 2286 Binder.restoreCallingIdentity(ident); 2287 } 2288 } 2289 2290 private void removeUserState(final int userHandle) { 2291 try { 2292 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2293 } catch (IllegalStateException e) { 2294 // This may be simply because the user was partially created. 2295 Slog.i(LOG_TAG, 2296 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2297 } 2298 2299 // Cleanup package manager settings 2300 mPm.cleanUpUser(this, userHandle); 2301 // Remove this user from the list 2302 synchronized (mUsersLock) { 2303 mUsers.remove(userHandle); 2304 mIsUserManaged.delete(userHandle); 2305 } 2306 synchronized (mRestrictionsLock) { 2307 mBaseUserRestrictions.remove(userHandle); 2308 mAppliedUserRestrictions.remove(userHandle); 2309 mCachedEffectiveUserRestrictions.remove(userHandle); 2310 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2311 } 2312 // Update the user list 2313 synchronized (mPackagesLock) { 2314 writeUserListLP(); 2315 } 2316 // Remove user file 2317 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2318 userFile.delete(); 2319 updateUserIds(); 2320 2321 // Now that we've purged all the metadata above, destroy the actual data 2322 // on disk; if we battery pull in here we'll finish cleaning up when 2323 // reconciling after reboot. 2324 mPm.destroyUserData(userHandle, 2325 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2326 } 2327 2328 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2329 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2330 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2331 Intent.FLAG_RECEIVER_FOREGROUND); 2332 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2333 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2334 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2335 } 2336 2337 @Override 2338 public Bundle getApplicationRestrictions(String packageName) { 2339 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2340 } 2341 2342 @Override 2343 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2344 if (UserHandle.getCallingUserId() != userId 2345 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2346 checkSystemOrRoot("get application restrictions for other users/apps"); 2347 } 2348 synchronized (mPackagesLock) { 2349 // Read the restrictions from XML 2350 return readApplicationRestrictionsLP(packageName, userId); 2351 } 2352 } 2353 2354 @Override 2355 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2356 int userId) { 2357 checkSystemOrRoot("set application restrictions"); 2358 if (restrictions != null) { 2359 restrictions.setDefusable(true); 2360 } 2361 synchronized (mPackagesLock) { 2362 if (restrictions == null || restrictions.isEmpty()) { 2363 cleanAppRestrictionsForPackage(packageName, userId); 2364 } else { 2365 // Write the restrictions to XML 2366 writeApplicationRestrictionsLP(packageName, restrictions, userId); 2367 } 2368 } 2369 2370 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2371 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2372 changeIntent.setPackage(packageName); 2373 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2374 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2375 } 2376 2377 private int getUidForPackage(String packageName) { 2378 long ident = Binder.clearCallingIdentity(); 2379 try { 2380 return mContext.getPackageManager().getApplicationInfo(packageName, 2381 PackageManager.MATCH_UNINSTALLED_PACKAGES).uid; 2382 } catch (NameNotFoundException nnfe) { 2383 return -1; 2384 } finally { 2385 Binder.restoreCallingIdentity(ident); 2386 } 2387 } 2388 2389 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 2390 AtomicFile restrictionsFile = 2391 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2392 packageToRestrictionsFileName(packageName))); 2393 return readApplicationRestrictionsLP(restrictionsFile); 2394 } 2395 2396 @VisibleForTesting 2397 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 2398 final Bundle restrictions = new Bundle(); 2399 final ArrayList<String> values = new ArrayList<>(); 2400 if (!restrictionsFile.getBaseFile().exists()) { 2401 return restrictions; 2402 } 2403 2404 FileInputStream fis = null; 2405 try { 2406 fis = restrictionsFile.openRead(); 2407 XmlPullParser parser = Xml.newPullParser(); 2408 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2409 XmlUtils.nextElement(parser); 2410 if (parser.getEventType() != XmlPullParser.START_TAG) { 2411 Slog.e(LOG_TAG, "Unable to read restrictions file " 2412 + restrictionsFile.getBaseFile()); 2413 return restrictions; 2414 } 2415 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2416 readEntry(restrictions, values, parser); 2417 } 2418 } catch (IOException|XmlPullParserException e) { 2419 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2420 } finally { 2421 IoUtils.closeQuietly(fis); 2422 } 2423 return restrictions; 2424 } 2425 2426 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2427 XmlPullParser parser) throws XmlPullParserException, IOException { 2428 int type = parser.getEventType(); 2429 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2430 String key = parser.getAttributeValue(null, ATTR_KEY); 2431 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2432 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2433 if (multiple != null) { 2434 values.clear(); 2435 int count = Integer.parseInt(multiple); 2436 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2437 if (type == XmlPullParser.START_TAG 2438 && parser.getName().equals(TAG_VALUE)) { 2439 values.add(parser.nextText().trim()); 2440 count--; 2441 } 2442 } 2443 String [] valueStrings = new String[values.size()]; 2444 values.toArray(valueStrings); 2445 restrictions.putStringArray(key, valueStrings); 2446 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2447 restrictions.putBundle(key, readBundleEntry(parser, values)); 2448 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2449 final int outerDepth = parser.getDepth(); 2450 ArrayList<Bundle> bundleList = new ArrayList<>(); 2451 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2452 Bundle childBundle = readBundleEntry(parser, values); 2453 bundleList.add(childBundle); 2454 } 2455 restrictions.putParcelableArray(key, 2456 bundleList.toArray(new Bundle[bundleList.size()])); 2457 } else { 2458 String value = parser.nextText().trim(); 2459 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2460 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2461 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2462 restrictions.putInt(key, Integer.parseInt(value)); 2463 } else { 2464 restrictions.putString(key, value); 2465 } 2466 } 2467 } 2468 } 2469 2470 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2471 throws IOException, XmlPullParserException { 2472 Bundle childBundle = new Bundle(); 2473 final int outerDepth = parser.getDepth(); 2474 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2475 readEntry(childBundle, values, parser); 2476 } 2477 return childBundle; 2478 } 2479 2480 private void writeApplicationRestrictionsLP(String packageName, 2481 Bundle restrictions, int userId) { 2482 AtomicFile restrictionsFile = new AtomicFile( 2483 new File(Environment.getUserSystemDirectory(userId), 2484 packageToRestrictionsFileName(packageName))); 2485 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 2486 } 2487 2488 @VisibleForTesting 2489 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 2490 FileOutputStream fos = null; 2491 try { 2492 fos = restrictionsFile.startWrite(); 2493 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2494 2495 final XmlSerializer serializer = new FastXmlSerializer(); 2496 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2497 serializer.startDocument(null, true); 2498 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2499 2500 serializer.startTag(null, TAG_RESTRICTIONS); 2501 writeBundle(restrictions, serializer); 2502 serializer.endTag(null, TAG_RESTRICTIONS); 2503 2504 serializer.endDocument(); 2505 restrictionsFile.finishWrite(fos); 2506 } catch (Exception e) { 2507 restrictionsFile.failWrite(fos); 2508 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 2509 } 2510 } 2511 2512 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 2513 throws IOException { 2514 for (String key : restrictions.keySet()) { 2515 Object value = restrictions.get(key); 2516 serializer.startTag(null, TAG_ENTRY); 2517 serializer.attribute(null, ATTR_KEY, key); 2518 2519 if (value instanceof Boolean) { 2520 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 2521 serializer.text(value.toString()); 2522 } else if (value instanceof Integer) { 2523 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 2524 serializer.text(value.toString()); 2525 } else if (value == null || value instanceof String) { 2526 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 2527 serializer.text(value != null ? (String) value : ""); 2528 } else if (value instanceof Bundle) { 2529 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2530 writeBundle((Bundle) value, serializer); 2531 } else if (value instanceof Parcelable[]) { 2532 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 2533 Parcelable[] array = (Parcelable[]) value; 2534 for (Parcelable parcelable : array) { 2535 if (!(parcelable instanceof Bundle)) { 2536 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 2537 } 2538 serializer.startTag(null, TAG_ENTRY); 2539 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2540 writeBundle((Bundle) parcelable, serializer); 2541 serializer.endTag(null, TAG_ENTRY); 2542 } 2543 } else { 2544 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 2545 String[] values = (String[]) value; 2546 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 2547 for (String choice : values) { 2548 serializer.startTag(null, TAG_VALUE); 2549 serializer.text(choice != null ? choice : ""); 2550 serializer.endTag(null, TAG_VALUE); 2551 } 2552 } 2553 serializer.endTag(null, TAG_ENTRY); 2554 } 2555 } 2556 2557 @Override 2558 public int getUserSerialNumber(int userHandle) { 2559 synchronized (mUsersLock) { 2560 if (!exists(userHandle)) return -1; 2561 return getUserInfoLU(userHandle).serialNumber; 2562 } 2563 } 2564 2565 @Override 2566 public int getUserHandle(int userSerialNumber) { 2567 synchronized (mUsersLock) { 2568 for (int userId : mUserIds) { 2569 UserInfo info = getUserInfoLU(userId); 2570 if (info != null && info.serialNumber == userSerialNumber) return userId; 2571 } 2572 // Not found 2573 return -1; 2574 } 2575 } 2576 2577 @Override 2578 public long getUserCreationTime(int userHandle) { 2579 int callingUserId = UserHandle.getCallingUserId(); 2580 UserInfo userInfo = null; 2581 synchronized (mUsersLock) { 2582 if (callingUserId == userHandle) { 2583 userInfo = getUserInfoLU(userHandle); 2584 } else { 2585 UserInfo parent = getProfileParentLU(userHandle); 2586 if (parent != null && parent.id == callingUserId) { 2587 userInfo = getUserInfoLU(userHandle); 2588 } 2589 } 2590 } 2591 if (userInfo == null) { 2592 throw new SecurityException("userHandle can only be the calling user or a managed " 2593 + "profile associated with this user"); 2594 } 2595 return userInfo.creationTime; 2596 } 2597 2598 /** 2599 * Caches the list of user ids in an array, adjusting the array size when necessary. 2600 */ 2601 private void updateUserIds() { 2602 int num = 0; 2603 synchronized (mUsersLock) { 2604 final int userSize = mUsers.size(); 2605 for (int i = 0; i < userSize; i++) { 2606 if (!mUsers.valueAt(i).info.partial) { 2607 num++; 2608 } 2609 } 2610 final int[] newUsers = new int[num]; 2611 int n = 0; 2612 for (int i = 0; i < userSize; i++) { 2613 if (!mUsers.valueAt(i).info.partial) { 2614 newUsers[n++] = mUsers.keyAt(i); 2615 } 2616 } 2617 mUserIds = newUsers; 2618 } 2619 } 2620 2621 /** 2622 * Called right before a user is started. This gives us a chance to prepare 2623 * app storage and apply any user restrictions. 2624 */ 2625 public void onBeforeStartUser(int userId) { 2626 final int userSerial = getUserSerialNumber(userId); 2627 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 2628 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE); 2629 2630 if (userId != UserHandle.USER_SYSTEM) { 2631 synchronized (mRestrictionsLock) { 2632 applyUserRestrictionsLR(userId); 2633 } 2634 } 2635 } 2636 2637 /** 2638 * Called right before a user is unlocked. This gives us a chance to prepare 2639 * app storage. 2640 */ 2641 public void onBeforeUnlockUser(@UserIdInt int userId) { 2642 final int userSerial = getUserSerialNumber(userId); 2643 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 2644 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE); 2645 } 2646 2647 /** 2648 * Make a note of the last started time of a user and do some cleanup. 2649 * @param userId the user that was just foregrounded 2650 */ 2651 public void onUserLoggedIn(@UserIdInt int userId) { 2652 UserData userData = getUserDataNoChecks(userId); 2653 if (userData == null || userData.info.partial) { 2654 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 2655 return; 2656 } 2657 2658 final long now = System.currentTimeMillis(); 2659 if (now > EPOCH_PLUS_30_YEARS) { 2660 userData.info.lastLoggedInTime = now; 2661 } 2662 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 2663 scheduleWriteUser(userData); 2664 } 2665 2666 /** 2667 * Returns the next available user id, filling in any holes in the ids. 2668 * TODO: May not be a good idea to recycle ids, in case it results in confusion 2669 * for data and battery stats collection, or unexpected cross-talk. 2670 */ 2671 private int getNextAvailableId() { 2672 synchronized (mUsersLock) { 2673 int i = MIN_USER_ID; 2674 while (i < MAX_USER_ID) { 2675 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 2676 return i; 2677 } 2678 i++; 2679 } 2680 } 2681 throw new IllegalStateException("No user id available!"); 2682 } 2683 2684 private String packageToRestrictionsFileName(String packageName) { 2685 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 2686 } 2687 2688 /** 2689 * Enforce that serial number stored in user directory inode matches the 2690 * given expected value. Gracefully sets the serial number if currently 2691 * undefined. 2692 * 2693 * @throws IOException when problem extracting serial number, or serial 2694 * number is mismatched. 2695 */ 2696 public static void enforceSerialNumber(File file, int serialNumber) throws IOException { 2697 final int foundSerial = getSerialNumber(file); 2698 Slog.v(LOG_TAG, "Found " + file + " with serial number " + foundSerial); 2699 2700 if (foundSerial == -1) { 2701 Slog.d(LOG_TAG, "Serial number missing on " + file + "; assuming current is valid"); 2702 try { 2703 setSerialNumber(file, serialNumber); 2704 } catch (IOException e) { 2705 Slog.w(LOG_TAG, "Failed to set serial number on " + file, e); 2706 } 2707 2708 } else if (foundSerial != serialNumber) { 2709 throw new IOException("Found serial number " + foundSerial 2710 + " doesn't match expected " + serialNumber); 2711 } 2712 } 2713 2714 /** 2715 * Set serial number stored in user directory inode. 2716 * 2717 * @throws IOException if serial number was already set 2718 */ 2719 private static void setSerialNumber(File file, int serialNumber) 2720 throws IOException { 2721 try { 2722 final byte[] buf = Integer.toString(serialNumber).getBytes(StandardCharsets.UTF_8); 2723 Os.setxattr(file.getAbsolutePath(), XATTR_SERIAL, buf, OsConstants.XATTR_CREATE); 2724 } catch (ErrnoException e) { 2725 throw e.rethrowAsIOException(); 2726 } 2727 } 2728 2729 /** 2730 * Return serial number stored in user directory inode. 2731 * 2732 * @return parsed serial number, or -1 if not set 2733 */ 2734 private static int getSerialNumber(File file) throws IOException { 2735 try { 2736 final byte[] buf = new byte[256]; 2737 final int len = Os.getxattr(file.getAbsolutePath(), XATTR_SERIAL, buf); 2738 final String serial = new String(buf, 0, len); 2739 try { 2740 return Integer.parseInt(serial); 2741 } catch (NumberFormatException e) { 2742 throw new IOException("Bad serial number: " + serial); 2743 } 2744 } catch (ErrnoException e) { 2745 if (e.errno == OsConstants.ENODATA) { 2746 return -1; 2747 } else { 2748 throw e.rethrowAsIOException(); 2749 } 2750 } 2751 } 2752 2753 @Override 2754 public void setSeedAccountData(int userId, String accountName, String accountType, 2755 PersistableBundle accountOptions, boolean persist) { 2756 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 2757 synchronized (mPackagesLock) { 2758 final UserData userData; 2759 synchronized (mUsersLock) { 2760 userData = getUserDataLU(userId); 2761 if (userData == null) { 2762 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 2763 return; 2764 } 2765 userData.seedAccountName = accountName; 2766 userData.seedAccountType = accountType; 2767 userData.seedAccountOptions = accountOptions; 2768 userData.persistSeedData = persist; 2769 } 2770 if (persist) { 2771 writeUserLP(userData); 2772 } 2773 } 2774 } 2775 2776 @Override 2777 public String getSeedAccountName() throws RemoteException { 2778 checkManageUsersPermission("Cannot get seed account information"); 2779 synchronized (mUsersLock) { 2780 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2781 return userData.seedAccountName; 2782 } 2783 } 2784 2785 @Override 2786 public String getSeedAccountType() throws RemoteException { 2787 checkManageUsersPermission("Cannot get seed account information"); 2788 synchronized (mUsersLock) { 2789 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2790 return userData.seedAccountType; 2791 } 2792 } 2793 2794 @Override 2795 public PersistableBundle getSeedAccountOptions() throws RemoteException { 2796 checkManageUsersPermission("Cannot get seed account information"); 2797 synchronized (mUsersLock) { 2798 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2799 return userData.seedAccountOptions; 2800 } 2801 } 2802 2803 @Override 2804 public void clearSeedAccountData() throws RemoteException { 2805 checkManageUsersPermission("Cannot clear seed account information"); 2806 synchronized (mPackagesLock) { 2807 UserData userData; 2808 synchronized (mUsersLock) { 2809 userData = getUserDataLU(UserHandle.getCallingUserId()); 2810 if (userData == null) return; 2811 userData.clearSeedAccountData(); 2812 } 2813 writeUserLP(userData); 2814 } 2815 } 2816 2817 @Override 2818 public boolean someUserHasSeedAccount(String accountName, String accountType) 2819 throws RemoteException { 2820 checkManageUsersPermission("Cannot check seed account information"); 2821 synchronized (mUsersLock) { 2822 final int userSize = mUsers.size(); 2823 for (int i = 0; i < userSize; i++) { 2824 final UserData data = mUsers.valueAt(i); 2825 if (data.info.isInitialized()) continue; 2826 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 2827 continue; 2828 } 2829 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 2830 continue; 2831 } 2832 return true; 2833 } 2834 } 2835 return false; 2836 } 2837 2838 @Override 2839 public void onShellCommand(FileDescriptor in, FileDescriptor out, 2840 FileDescriptor err, String[] args, ResultReceiver resultReceiver) { 2841 (new Shell()).exec(this, in, out, err, args, resultReceiver); 2842 } 2843 2844 int onShellCommand(Shell shell, String cmd) { 2845 if (cmd == null) { 2846 return shell.handleDefaultCommands(cmd); 2847 } 2848 2849 final PrintWriter pw = shell.getOutPrintWriter(); 2850 try { 2851 switch(cmd) { 2852 case "list": 2853 return runList(pw); 2854 } 2855 } catch (RemoteException e) { 2856 pw.println("Remote exception: " + e); 2857 } 2858 return -1; 2859 } 2860 2861 private int runList(PrintWriter pw) throws RemoteException { 2862 final IActivityManager am = ActivityManagerNative.getDefault(); 2863 final List<UserInfo> users = getUsers(false); 2864 if (users == null) { 2865 pw.println("Error: couldn't get users"); 2866 return 1; 2867 } else { 2868 pw.println("Users:"); 2869 for (int i = 0; i < users.size(); i++) { 2870 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 2871 pw.println("\t" + users.get(i).toString() + running); 2872 } 2873 return 0; 2874 } 2875 } 2876 2877 @Override 2878 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2879 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 2880 != PackageManager.PERMISSION_GRANTED) { 2881 pw.println("Permission Denial: can't dump UserManager from from pid=" 2882 + Binder.getCallingPid() 2883 + ", uid=" + Binder.getCallingUid() 2884 + " without permission " 2885 + android.Manifest.permission.DUMP); 2886 return; 2887 } 2888 2889 long now = System.currentTimeMillis(); 2890 StringBuilder sb = new StringBuilder(); 2891 synchronized (mPackagesLock) { 2892 synchronized (mUsersLock) { 2893 pw.println("Users:"); 2894 for (int i = 0; i < mUsers.size(); i++) { 2895 UserData userData = mUsers.valueAt(i); 2896 if (userData == null) { 2897 continue; 2898 } 2899 UserInfo userInfo = userData.info; 2900 final int userId = userInfo.id; 2901 pw.print(" "); pw.print(userInfo); 2902 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 2903 if (mRemovingUserIds.get(userId)) { 2904 pw.print(" <removing> "); 2905 } 2906 if (userInfo.partial) { 2907 pw.print(" <partial>"); 2908 } 2909 pw.println(); 2910 pw.print(" Created: "); 2911 if (userInfo.creationTime == 0) { 2912 pw.println("<unknown>"); 2913 } else { 2914 sb.setLength(0); 2915 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 2916 sb.append(" ago"); 2917 pw.println(sb); 2918 } 2919 pw.print(" Last logged in: "); 2920 if (userInfo.lastLoggedInTime == 0) { 2921 pw.println("<unknown>"); 2922 } else { 2923 sb.setLength(0); 2924 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 2925 sb.append(" ago"); 2926 pw.println(sb); 2927 } 2928 pw.print(" Last logged in fingerprint: "); 2929 pw.println(userInfo.lastLoggedInFingerprint); 2930 pw.print(" Has profile owner: "); 2931 pw.println(mIsUserManaged.get(userId)); 2932 pw.println(" Restrictions:"); 2933 synchronized (mRestrictionsLock) { 2934 UserRestrictionsUtils.dumpRestrictions( 2935 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 2936 pw.println(" Device policy local restrictions:"); 2937 UserRestrictionsUtils.dumpRestrictions( 2938 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 2939 pw.println(" Effective restrictions:"); 2940 UserRestrictionsUtils.dumpRestrictions( 2941 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 2942 } 2943 2944 if (userData.account != null) { 2945 pw.print(" Account name: " + userData.account); 2946 pw.println(); 2947 } 2948 2949 if (userData.seedAccountName != null) { 2950 pw.print(" Seed account name: " + userData.seedAccountName); 2951 pw.println(); 2952 if (userData.seedAccountType != null) { 2953 pw.print(" account type: " + userData.seedAccountType); 2954 pw.println(); 2955 } 2956 if (userData.seedAccountOptions != null) { 2957 pw.print(" account options exist"); 2958 pw.println(); 2959 } 2960 } 2961 } 2962 } 2963 pw.println(); 2964 pw.println(" Device policy global restrictions:"); 2965 synchronized (mRestrictionsLock) { 2966 UserRestrictionsUtils 2967 .dumpRestrictions(pw, " ", mDevicePolicyGlobalUserRestrictions); 2968 } 2969 pw.println(); 2970 pw.println(" Guest restrictions:"); 2971 synchronized (mGuestRestrictions) { 2972 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 2973 } 2974 synchronized (mUsersLock) { 2975 pw.println(); 2976 pw.println(" Device managed: " + mIsDeviceManaged); 2977 } 2978 // Dump some capabilities 2979 pw.println(); 2980 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 2981 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 2982 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 2983 com.android.internal.R.bool.config_guestUserEphemeral)); 2984 } 2985 } 2986 2987 final class MainHandler extends Handler { 2988 2989 @Override 2990 public void handleMessage(Message msg) { 2991 switch (msg.what) { 2992 case WRITE_USER_MSG: 2993 removeMessages(WRITE_USER_MSG, msg.obj); 2994 synchronized (mPackagesLock) { 2995 int userId = ((UserData) msg.obj).info.id; 2996 UserData userData = getUserDataNoChecks(userId); 2997 if (userData != null) { 2998 writeUserLP(userData); 2999 } 3000 } 3001 } 3002 } 3003 } 3004 3005 /** 3006 * @param userId 3007 * @return whether the user has been initialized yet 3008 */ 3009 boolean isInitialized(int userId) { 3010 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3011 } 3012 3013 private class LocalService extends UserManagerInternal { 3014 @Override 3015 public void setDevicePolicyUserRestrictions(int userId, @NonNull Bundle localRestrictions, 3016 @Nullable Bundle globalRestrictions) { 3017 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, localRestrictions, 3018 globalRestrictions); 3019 } 3020 3021 @Override 3022 public Bundle getBaseUserRestrictions(int userId) { 3023 synchronized (mRestrictionsLock) { 3024 return mBaseUserRestrictions.get(userId); 3025 } 3026 } 3027 3028 @Override 3029 public void setBaseUserRestrictionsByDpmsForMigration( 3030 int userId, Bundle baseRestrictions) { 3031 synchronized (mRestrictionsLock) { 3032 mBaseUserRestrictions.put(userId, new Bundle(baseRestrictions)); 3033 invalidateEffectiveUserRestrictionsLR(userId); 3034 } 3035 3036 final UserData userData = getUserDataNoChecks(userId); 3037 synchronized (mPackagesLock) { 3038 if (userData != null) { 3039 writeUserLP(userData); 3040 } else { 3041 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3042 } 3043 } 3044 } 3045 3046 @Override 3047 public boolean getUserRestriction(int userId, String key) { 3048 return getUserRestrictions(userId).getBoolean(key); 3049 } 3050 3051 @Override 3052 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3053 synchronized (mUserRestrictionsListeners) { 3054 mUserRestrictionsListeners.add(listener); 3055 } 3056 } 3057 3058 @Override 3059 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3060 synchronized (mUserRestrictionsListeners) { 3061 mUserRestrictionsListeners.remove(listener); 3062 } 3063 } 3064 3065 @Override 3066 public void setDeviceManaged(boolean isManaged) { 3067 synchronized (mUsersLock) { 3068 mIsDeviceManaged = isManaged; 3069 } 3070 } 3071 3072 @Override 3073 public void setUserManaged(int userId, boolean isManaged) { 3074 synchronized (mUsersLock) { 3075 mIsUserManaged.put(userId, isManaged); 3076 } 3077 } 3078 3079 @Override 3080 public void setUserIcon(int userId, Bitmap bitmap) { 3081 long ident = Binder.clearCallingIdentity(); 3082 try { 3083 synchronized (mPackagesLock) { 3084 UserData userData = getUserDataNoChecks(userId); 3085 if (userData == null || userData.info.partial) { 3086 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3087 return; 3088 } 3089 writeBitmapLP(userData.info, bitmap); 3090 writeUserLP(userData); 3091 } 3092 sendUserInfoChangedBroadcast(userId); 3093 } finally { 3094 Binder.restoreCallingIdentity(ident); 3095 } 3096 } 3097 3098 @Override 3099 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3100 synchronized (mUsersLock) { 3101 mForceEphemeralUsers = forceEphemeralUsers; 3102 } 3103 } 3104 3105 @Override 3106 public void removeAllUsers() { 3107 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3108 // Remove the non-system users straight away. 3109 removeNonSystemUsers(); 3110 } else { 3111 // Switch to the system user first and then remove the other users. 3112 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3113 @Override 3114 public void onReceive(Context context, Intent intent) { 3115 int userId = 3116 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3117 if (userId != UserHandle.USER_SYSTEM) { 3118 return; 3119 } 3120 mContext.unregisterReceiver(this); 3121 removeNonSystemUsers(); 3122 } 3123 }; 3124 IntentFilter userSwitchedFilter = new IntentFilter(); 3125 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3126 mContext.registerReceiver( 3127 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3128 3129 // Switch to the system user. 3130 ActivityManager am = 3131 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3132 am.switchUser(UserHandle.USER_SYSTEM); 3133 } 3134 } 3135 3136 @Override 3137 public void onEphemeralUserStop(int userId) { 3138 synchronized (mUsersLock) { 3139 UserInfo userInfo = getUserInfoLU(userId); 3140 if (userInfo != null && userInfo.isEphemeral()) { 3141 // Do not allow switching back to the ephemeral user again as the user is going 3142 // to be deleted. 3143 userInfo.flags |= UserInfo.FLAG_DISABLED; 3144 if (userInfo.isGuest()) { 3145 // Indicate that the guest will be deleted after it stops. 3146 userInfo.guestToRemove = true; 3147 } 3148 } 3149 } 3150 } 3151 3152 @Override 3153 public UserInfo createUserEvenWhenDisallowed(String name, int flags) { 3154 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL); 3155 // Keep this in sync with UserManager.createUser 3156 if (user != null && !user.isAdmin()) { 3157 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3158 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3159 } 3160 return user; 3161 } 3162 } 3163 3164 /* Remove all the users except of the system one. */ 3165 private void removeNonSystemUsers() { 3166 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3167 synchronized (mUsersLock) { 3168 final int userSize = mUsers.size(); 3169 for (int i = 0; i < userSize; i++) { 3170 UserInfo ui = mUsers.valueAt(i).info; 3171 if (ui.id != UserHandle.USER_SYSTEM) { 3172 usersToRemove.add(ui); 3173 } 3174 } 3175 } 3176 for (UserInfo ui: usersToRemove) { 3177 removeUser(ui.id); 3178 } 3179 } 3180 3181 private class Shell extends ShellCommand { 3182 @Override 3183 public int onCommand(String cmd) { 3184 return onShellCommand(this, cmd); 3185 } 3186 3187 @Override 3188 public void onHelp() { 3189 final PrintWriter pw = getOutPrintWriter(); 3190 pw.println("User manager (user) commands:"); 3191 pw.println(" help"); 3192 pw.println(" Print this help text."); 3193 pw.println(""); 3194 pw.println(" list"); 3195 pw.println(" Prints all users on the system."); 3196 } 3197 } 3198 3199 private static void debug(String message) { 3200 Log.d(LOG_TAG, message + 3201 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3202 } 3203} 3204