UserManagerService.java revision 9cc7ad65a13b5d40566ea18be41a3c5a3610d4ab
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 @GuardedBy("mUsersLock") 324 private final SparseBooleanArray mUnlockingOrUnlockedUsers = new SparseBooleanArray(); 325 326 private static UserManagerService sInstance; 327 328 public static UserManagerService getInstance() { 329 synchronized (UserManagerService.class) { 330 return sInstance; 331 } 332 } 333 334 @VisibleForTesting 335 UserManagerService(File dataDir) { 336 this(null, null, new Object(), dataDir); 337 } 338 339 /** 340 * Called by package manager to create the service. This is closely 341 * associated with the package manager, and the given lock is the 342 * package manager's own lock. 343 */ 344 UserManagerService(Context context, PackageManagerService pm, Object packagesLock) { 345 this(context, pm, packagesLock, Environment.getDataDirectory()); 346 } 347 348 private UserManagerService(Context context, PackageManagerService pm, 349 Object packagesLock, File dataDir) { 350 mContext = context; 351 mPm = pm; 352 mPackagesLock = packagesLock; 353 mHandler = new MainHandler(); 354 synchronized (mPackagesLock) { 355 mUsersDir = new File(dataDir, USER_INFO_DIR); 356 mUsersDir.mkdirs(); 357 // Make zeroth user directory, for services to migrate their files to that location 358 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 359 userZeroDir.mkdirs(); 360 FileUtils.setPermissions(mUsersDir.toString(), 361 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 362 -1, -1); 363 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 364 initDefaultGuestRestrictions(); 365 readUserListLP(); 366 sInstance = this; 367 } 368 mLocalService = new LocalService(); 369 LocalServices.addService(UserManagerInternal.class, mLocalService); 370 mLockPatternUtils = new LockPatternUtils(mContext); 371 } 372 373 void systemReady() { 374 // Prune out any partially created, partially removed and ephemeral users. 375 ArrayList<UserInfo> partials = new ArrayList<>(); 376 synchronized (mUsersLock) { 377 final int userSize = mUsers.size(); 378 for (int i = 0; i < userSize; i++) { 379 UserInfo ui = mUsers.valueAt(i).info; 380 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 381 partials.add(ui); 382 } 383 } 384 } 385 final int partialsSize = partials.size(); 386 for (int i = 0; i < partialsSize; i++) { 387 UserInfo ui = partials.get(i); 388 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 389 + " (name=" + ui.name + ")"); 390 removeUserState(ui.id); 391 } 392 393 mAppOpsService = IAppOpsService.Stub.asInterface( 394 ServiceManager.getService(Context.APP_OPS_SERVICE)); 395 396 synchronized (mRestrictionsLock) { 397 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 398 } 399 400 UserInfo currentGuestUser = findCurrentGuestUser(); 401 if (currentGuestUser != null && !hasUserRestriction( 402 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 403 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 404 // to it, in case this guest was created in a previous version where this 405 // user restriction was not a default guest restriction. 406 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 407 } 408 } 409 410 @Override 411 public String getUserAccount(int userId) { 412 checkManageUserAndAcrossUsersFullPermission("get user account"); 413 synchronized (mUsersLock) { 414 return mUsers.get(userId).account; 415 } 416 } 417 418 @Override 419 public void setUserAccount(int userId, String accountName) { 420 checkManageUserAndAcrossUsersFullPermission("set user account"); 421 UserData userToUpdate = null; 422 synchronized (mPackagesLock) { 423 synchronized (mUsersLock) { 424 final UserData userData = mUsers.get(userId); 425 if (userData == null) { 426 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 427 return; 428 } 429 String currentAccount = userData.account; 430 if (!Objects.equal(currentAccount, accountName)) { 431 userData.account = accountName; 432 userToUpdate = userData; 433 } 434 } 435 436 if (userToUpdate != null) { 437 writeUserLP(userToUpdate); 438 } 439 } 440 } 441 442 @Override 443 public UserInfo getPrimaryUser() { 444 checkManageUsersPermission("query users"); 445 synchronized (mUsersLock) { 446 final int userSize = mUsers.size(); 447 for (int i = 0; i < userSize; i++) { 448 UserInfo ui = mUsers.valueAt(i).info; 449 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 450 return ui; 451 } 452 } 453 } 454 return null; 455 } 456 457 @Override 458 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 459 checkManageUsersPermission("query users"); 460 synchronized (mUsersLock) { 461 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 462 final int userSize = mUsers.size(); 463 for (int i = 0; i < userSize; i++) { 464 UserInfo ui = mUsers.valueAt(i).info; 465 if (ui.partial) { 466 continue; 467 } 468 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 469 users.add(userWithName(ui)); 470 } 471 } 472 return users; 473 } 474 } 475 476 @Override 477 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 478 boolean returnFullInfo = true; 479 if (userId != UserHandle.getCallingUserId()) { 480 checkManageUsersPermission("getting profiles related to user " + userId); 481 } else { 482 returnFullInfo = hasManageUsersPermission(); 483 } 484 final long ident = Binder.clearCallingIdentity(); 485 try { 486 synchronized (mUsersLock) { 487 return getProfilesLU(userId, enabledOnly, returnFullInfo); 488 } 489 } finally { 490 Binder.restoreCallingIdentity(ident); 491 } 492 } 493 494 @Override 495 public int[] getProfileIds(int userId, boolean enabledOnly) { 496 if (userId != UserHandle.getCallingUserId()) { 497 checkManageUsersPermission("getting profiles related to user " + userId); 498 } 499 final long ident = Binder.clearCallingIdentity(); 500 try { 501 synchronized (mUsersLock) { 502 return getProfileIdsLU(userId, enabledOnly).toArray(); 503 } 504 } finally { 505 Binder.restoreCallingIdentity(ident); 506 } 507 } 508 509 /** Assume permissions already checked and caller's identity cleared */ 510 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 511 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 512 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 513 for (int i = 0; i < profileIds.size(); i++) { 514 int profileId = profileIds.get(i); 515 UserInfo userInfo = mUsers.get(profileId).info; 516 // If full info is not required - clear PII data to prevent 3P apps from reading it 517 if (!fullInfo) { 518 userInfo = new UserInfo(userInfo); 519 userInfo.name = null; 520 userInfo.iconPath = null; 521 } else { 522 userInfo = userWithName(userInfo); 523 } 524 users.add(userInfo); 525 } 526 return users; 527 } 528 529 /** 530 * Assume permissions already checked and caller's identity cleared 531 */ 532 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 533 UserInfo user = getUserInfoLU(userId); 534 IntArray result = new IntArray(mUsers.size()); 535 if (user == null) { 536 // Probably a dying user 537 return result; 538 } 539 final int userSize = mUsers.size(); 540 for (int i = 0; i < userSize; i++) { 541 UserInfo profile = mUsers.valueAt(i).info; 542 if (!isProfileOf(user, profile)) { 543 continue; 544 } 545 if (enabledOnly && !profile.isEnabled()) { 546 continue; 547 } 548 if (mRemovingUserIds.get(profile.id)) { 549 continue; 550 } 551 if (profile.partial) { 552 continue; 553 } 554 result.add(profile.id); 555 } 556 return result; 557 } 558 559 @Override 560 public int getCredentialOwnerProfile(int userHandle) { 561 checkManageUsersPermission("get the credential owner"); 562 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 563 synchronized (mUsersLock) { 564 UserInfo profileParent = getProfileParentLU(userHandle); 565 if (profileParent != null) { 566 return profileParent.id; 567 } 568 } 569 } 570 571 return userHandle; 572 } 573 574 @Override 575 public boolean isSameProfileGroup(int userId, int otherUserId) { 576 if (userId == otherUserId) return true; 577 checkManageUsersPermission("check if in the same profile group"); 578 synchronized (mPackagesLock) { 579 return isSameProfileGroupLP(userId, otherUserId); 580 } 581 } 582 583 private boolean isSameProfileGroupLP(int userId, int otherUserId) { 584 synchronized (mUsersLock) { 585 UserInfo userInfo = getUserInfoLU(userId); 586 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 587 return false; 588 } 589 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 590 if (otherUserInfo == null 591 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 592 return false; 593 } 594 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 595 } 596 } 597 598 @Override 599 public UserInfo getProfileParent(int userHandle) { 600 checkManageUsersPermission("get the profile parent"); 601 synchronized (mUsersLock) { 602 return getProfileParentLU(userHandle); 603 } 604 } 605 606 private UserInfo getProfileParentLU(int userHandle) { 607 UserInfo profile = getUserInfoLU(userHandle); 608 if (profile == null) { 609 return null; 610 } 611 int parentUserId = profile.profileGroupId; 612 if (parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 613 return null; 614 } else { 615 return getUserInfoLU(parentUserId); 616 } 617 } 618 619 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 620 return user.id == profile.id || 621 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 622 && user.profileGroupId == profile.profileGroupId); 623 } 624 625 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 626 UserHandle parentHandle, boolean inQuietMode) { 627 Intent intent = new Intent(); 628 if (inQuietMode) { 629 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 630 } else { 631 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 632 } 633 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 634 intent.putExtra(Intent.EXTRA_USER, profileHandle); 635 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 636 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 637 mContext.sendBroadcastAsUser(intent, parentHandle); 638 } 639 640 @Override 641 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { 642 checkManageUsersPermission("silence profile"); 643 boolean changed = false; 644 UserInfo profile, parent; 645 synchronized (mPackagesLock) { 646 synchronized (mUsersLock) { 647 profile = getUserInfoLU(userHandle); 648 parent = getProfileParentLU(userHandle); 649 650 } 651 if (profile == null || !profile.isManagedProfile()) { 652 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 653 } 654 if (profile.isQuietModeEnabled() != enableQuietMode) { 655 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 656 writeUserLP(getUserDataLU(profile.id)); 657 changed = true; 658 } 659 } 660 if (changed) { 661 long identity = Binder.clearCallingIdentity(); 662 try { 663 if (enableQuietMode) { 664 LocalServices.getService(ActivityManagerInternal.class) 665 .killForegroundAppsForUser(userHandle); 666 ActivityManagerNative.getDefault().stopUser(userHandle, /* force */true, null); 667 } else { 668 ActivityManagerNative.getDefault().startUserInBackground(userHandle); 669 } 670 } catch (RemoteException e) { 671 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 672 } finally { 673 Binder.restoreCallingIdentity(identity); 674 } 675 676 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 677 enableQuietMode); 678 } 679 } 680 681 @Override 682 public boolean isQuietModeEnabled(int userHandle) { 683 synchronized (mPackagesLock) { 684 UserInfo info; 685 synchronized (mUsersLock) { 686 info = getUserInfoLU(userHandle); 687 } 688 if (info == null || !info.isManagedProfile()) { 689 return false; 690 } 691 return info.isQuietModeEnabled(); 692 } 693 } 694 695 @Override 696 public boolean trySetQuietModeDisabled(int userHandle, IntentSender target) { 697 if (StorageManager.isUserKeyUnlocked(userHandle) 698 || !mLockPatternUtils.isSecure(userHandle)) { 699 // if the user is already unlocked, no need to show a profile challenge 700 setQuietModeEnabled(userHandle, false); 701 return true; 702 } 703 704 long identity = Binder.clearCallingIdentity(); 705 try { 706 // otherwise, we show a profile challenge to trigger decryption of the user 707 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 708 Context.KEYGUARD_SERVICE); 709 // We should use userHandle not credentialOwnerUserId here, as even if it is unified 710 // lock, confirm screenlock page will know and show personal challenge, and unlock 711 // work profile when personal challenge is correct 712 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 713 userHandle); 714 if (unlockIntent == null) { 715 return false; 716 } 717 if (target != null) { 718 unlockIntent.putExtra(Intent.EXTRA_INTENT, target); 719 } 720 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 721 mContext.startActivity(unlockIntent); 722 } finally { 723 Binder.restoreCallingIdentity(identity); 724 } 725 return false; 726 } 727 728 @Override 729 public void setUserEnabled(int userId) { 730 checkManageUsersPermission("enable user"); 731 synchronized (mPackagesLock) { 732 UserInfo info; 733 synchronized (mUsersLock) { 734 info = getUserInfoLU(userId); 735 } 736 if (info != null && !info.isEnabled()) { 737 info.flags ^= UserInfo.FLAG_DISABLED; 738 writeUserLP(getUserDataLU(info.id)); 739 } 740 } 741 } 742 743 @Override 744 public UserInfo getUserInfo(int userId) { 745 checkManageUsersPermission("query user"); 746 synchronized (mUsersLock) { 747 return userWithName(getUserInfoLU(userId)); 748 } 749 } 750 751 /** 752 * Returns a UserInfo object with the name filled in, for Owner, or the original 753 * if the name is already set. 754 */ 755 private UserInfo userWithName(UserInfo orig) { 756 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 757 UserInfo withName = new UserInfo(orig); 758 withName.name = getOwnerName(); 759 return withName; 760 } else { 761 return orig; 762 } 763 } 764 765 @Override 766 public boolean isManagedProfile(int userId) { 767 int callingUserId = UserHandle.getCallingUserId(); 768 if (callingUserId != userId && !hasManageUsersPermission()) { 769 synchronized (mPackagesLock) { 770 if (!isSameProfileGroupLP(callingUserId, userId)) { 771 throw new SecurityException( 772 "You need MANAGE_USERS permission to: check if specified user a " + 773 "managed profile outside your profile group"); 774 } 775 } 776 } 777 synchronized (mUsersLock) { 778 UserInfo userInfo = getUserInfoLU(userId); 779 return userInfo != null && userInfo.isManagedProfile(); 780 } 781 } 782 783 @Override 784 public boolean isRestricted() { 785 synchronized (mUsersLock) { 786 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 787 } 788 } 789 790 @Override 791 public boolean canHaveRestrictedProfile(int userId) { 792 checkManageUsersPermission("canHaveRestrictedProfile"); 793 synchronized (mUsersLock) { 794 final UserInfo userInfo = getUserInfoLU(userId); 795 if (userInfo == null || !userInfo.canHaveProfile()) { 796 return false; 797 } 798 if (!userInfo.isAdmin()) { 799 return false; 800 } 801 // restricted profile can be created if there is no DO set and the admin user has no PO; 802 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 803 } 804 } 805 806 /* 807 * Should be locked on mUsers before calling this. 808 */ 809 private UserInfo getUserInfoLU(int userId) { 810 final UserData userData = mUsers.get(userId); 811 // If it is partial and not in the process of being removed, return as unknown user. 812 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 813 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 814 return null; 815 } 816 return userData != null ? userData.info : null; 817 } 818 819 private UserData getUserDataLU(int userId) { 820 final UserData userData = mUsers.get(userId); 821 // If it is partial and not in the process of being removed, return as unknown user. 822 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 823 return null; 824 } 825 return userData; 826 } 827 828 /** 829 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 830 * <p>No permissions checking or any addition checks are made</p> 831 */ 832 private UserInfo getUserInfoNoChecks(int userId) { 833 synchronized (mUsersLock) { 834 final UserData userData = mUsers.get(userId); 835 return userData != null ? userData.info : null; 836 } 837 } 838 839 /** 840 * Obtains {@link #mUsersLock} and return UserData from mUsers. 841 * <p>No permissions checking or any addition checks are made</p> 842 */ 843 private UserData getUserDataNoChecks(int userId) { 844 synchronized (mUsersLock) { 845 return mUsers.get(userId); 846 } 847 } 848 849 /** Called by PackageManagerService */ 850 public boolean exists(int userId) { 851 return getUserInfoNoChecks(userId) != null; 852 } 853 854 @Override 855 public void setUserName(int userId, String name) { 856 checkManageUsersPermission("rename users"); 857 boolean changed = false; 858 synchronized (mPackagesLock) { 859 UserData userData = getUserDataNoChecks(userId); 860 if (userData == null || userData.info.partial) { 861 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 862 return; 863 } 864 if (name != null && !name.equals(userData.info.name)) { 865 userData.info.name = name; 866 writeUserLP(userData); 867 changed = true; 868 } 869 } 870 if (changed) { 871 sendUserInfoChangedBroadcast(userId); 872 } 873 } 874 875 @Override 876 public void setUserIcon(int userId, Bitmap bitmap) { 877 checkManageUsersPermission("update users"); 878 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 879 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 880 return; 881 } 882 mLocalService.setUserIcon(userId, bitmap); 883 } 884 885 886 887 private void sendUserInfoChangedBroadcast(int userId) { 888 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 889 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 890 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 891 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 892 } 893 894 @Override 895 public ParcelFileDescriptor getUserIcon(int targetUserId) { 896 String iconPath; 897 synchronized (mPackagesLock) { 898 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 899 if (targetUserInfo == null || targetUserInfo.partial) { 900 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 901 return null; 902 } 903 904 final int callingUserId = UserHandle.getCallingUserId(); 905 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 906 final int targetGroupId = targetUserInfo.profileGroupId; 907 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 908 && callingGroupId == targetGroupId); 909 if ((callingUserId != targetUserId) && !sameGroup) { 910 checkManageUsersPermission("get the icon of a user who is not related"); 911 } 912 913 if (targetUserInfo.iconPath == null) { 914 return null; 915 } 916 iconPath = targetUserInfo.iconPath; 917 } 918 919 try { 920 return ParcelFileDescriptor.open( 921 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 922 } catch (FileNotFoundException e) { 923 Log.e(LOG_TAG, "Couldn't find icon file", e); 924 } 925 return null; 926 } 927 928 public void makeInitialized(int userId) { 929 checkManageUsersPermission("makeInitialized"); 930 boolean scheduleWriteUser = false; 931 UserData userData; 932 synchronized (mUsersLock) { 933 userData = mUsers.get(userId); 934 if (userData == null || userData.info.partial) { 935 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 936 return; 937 } 938 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 939 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 940 scheduleWriteUser = true; 941 } 942 } 943 if (scheduleWriteUser) { 944 scheduleWriteUser(userData); 945 } 946 } 947 948 /** 949 * If default guest restrictions haven't been initialized yet, add the basic 950 * restrictions. 951 */ 952 private void initDefaultGuestRestrictions() { 953 synchronized (mGuestRestrictions) { 954 if (mGuestRestrictions.isEmpty()) { 955 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 956 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 957 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 958 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 959 } 960 } 961 } 962 963 @Override 964 public Bundle getDefaultGuestRestrictions() { 965 checkManageUsersPermission("getDefaultGuestRestrictions"); 966 synchronized (mGuestRestrictions) { 967 return new Bundle(mGuestRestrictions); 968 } 969 } 970 971 @Override 972 public void setDefaultGuestRestrictions(Bundle restrictions) { 973 checkManageUsersPermission("setDefaultGuestRestrictions"); 974 synchronized (mGuestRestrictions) { 975 mGuestRestrictions.clear(); 976 mGuestRestrictions.putAll(restrictions); 977 } 978 synchronized (mPackagesLock) { 979 writeUserListLP(); 980 } 981 } 982 983 /** 984 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions(int, Bundle, Bundle)} 985 */ 986 void setDevicePolicyUserRestrictionsInner(int userId, @NonNull Bundle local, 987 @Nullable Bundle global) { 988 Preconditions.checkNotNull(local); 989 boolean globalChanged = false; 990 boolean localChanged; 991 synchronized (mRestrictionsLock) { 992 if (global != null) { 993 // Update global. 994 globalChanged = !UserRestrictionsUtils.areEqual( 995 mDevicePolicyGlobalUserRestrictions, global); 996 if (globalChanged) { 997 mDevicePolicyGlobalUserRestrictions = global; 998 } 999 } 1000 { 1001 // Update local. 1002 final Bundle prev = mDevicePolicyLocalUserRestrictions.get(userId); 1003 localChanged = !UserRestrictionsUtils.areEqual(prev, local); 1004 if (localChanged) { 1005 mDevicePolicyLocalUserRestrictions.put(userId, local); 1006 } 1007 } 1008 } 1009 if (DBG) { 1010 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1011 + " global=" + global + (globalChanged ? " (changed)" : "") 1012 + " local=" + local + (localChanged ? " (changed)" : "") 1013 ); 1014 } 1015 // Don't call them within the mRestrictionsLock. 1016 synchronized (mPackagesLock) { 1017 if (localChanged) { 1018 writeUserLP(getUserDataNoChecks(userId)); 1019 } 1020 if (globalChanged) { 1021 writeUserListLP(); 1022 } 1023 } 1024 1025 synchronized (mRestrictionsLock) { 1026 if (globalChanged) { 1027 applyUserRestrictionsForAllUsersLR(); 1028 } else if (localChanged) { 1029 applyUserRestrictionsLR(userId); 1030 } 1031 } 1032 } 1033 1034 @GuardedBy("mRestrictionsLock") 1035 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1036 final Bundle baseRestrictions = 1037 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1038 final Bundle global = mDevicePolicyGlobalUserRestrictions; 1039 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1040 1041 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1042 // Common case first. 1043 return baseRestrictions; 1044 } 1045 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1046 UserRestrictionsUtils.merge(effective, global); 1047 UserRestrictionsUtils.merge(effective, local); 1048 1049 return effective; 1050 } 1051 1052 @GuardedBy("mRestrictionsLock") 1053 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1054 if (DBG) { 1055 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1056 } 1057 mCachedEffectiveUserRestrictions.remove(userId); 1058 } 1059 1060 private Bundle getEffectiveUserRestrictions(int userId) { 1061 synchronized (mRestrictionsLock) { 1062 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1063 if (restrictions == null) { 1064 restrictions = computeEffectiveUserRestrictionsLR(userId); 1065 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1066 } 1067 return restrictions; 1068 } 1069 } 1070 1071 /** @return a specific user restriction that's in effect currently. */ 1072 @Override 1073 public boolean hasUserRestriction(String restrictionKey, int userId) { 1074 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1075 return false; 1076 } 1077 Bundle restrictions = getEffectiveUserRestrictions(userId); 1078 return restrictions != null && restrictions.getBoolean(restrictionKey); 1079 } 1080 1081 /** 1082 * @return UserRestrictions that are in effect currently. This always returns a new 1083 * {@link Bundle}. 1084 */ 1085 @Override 1086 public Bundle getUserRestrictions(int userId) { 1087 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1088 } 1089 1090 @Override 1091 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1092 checkManageUsersPermission("hasBaseUserRestriction"); 1093 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1094 return false; 1095 } 1096 synchronized (mRestrictionsLock) { 1097 Bundle bundle = mBaseUserRestrictions.get(userId); 1098 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1099 } 1100 } 1101 1102 @Override 1103 public void setUserRestriction(String key, boolean value, int userId) { 1104 checkManageUsersPermission("setUserRestriction"); 1105 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1106 return; 1107 } 1108 synchronized (mRestrictionsLock) { 1109 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1110 // a copy. 1111 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1112 mBaseUserRestrictions.get(userId)); 1113 newRestrictions.putBoolean(key, value); 1114 1115 updateUserRestrictionsInternalLR(newRestrictions, userId); 1116 } 1117 } 1118 1119 /** 1120 * Optionally updating user restrictions, calculate the effective user restrictions and also 1121 * propagate to other services and system settings. 1122 * 1123 * @param newRestrictions User restrictions to set. 1124 * If null, will not update user restrictions and only does the propagation. 1125 * @param userId target user ID. 1126 */ 1127 @GuardedBy("mRestrictionsLock") 1128 private void updateUserRestrictionsInternalLR( 1129 @Nullable Bundle newRestrictions, int userId) { 1130 1131 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1132 mAppliedUserRestrictions.get(userId)); 1133 1134 // Update base restrictions. 1135 if (newRestrictions != null) { 1136 // If newRestrictions == the current one, it's probably a bug. 1137 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1138 1139 Preconditions.checkState(prevBaseRestrictions != newRestrictions); 1140 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1141 != newRestrictions); 1142 1143 if (!UserRestrictionsUtils.areEqual(prevBaseRestrictions, newRestrictions)) { 1144 mBaseUserRestrictions.put(userId, newRestrictions); 1145 scheduleWriteUser(getUserDataNoChecks(userId)); 1146 } 1147 } 1148 1149 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1150 1151 mCachedEffectiveUserRestrictions.put(userId, effective); 1152 1153 // Apply the new restrictions. 1154 if (DBG) { 1155 debug("Applying user restrictions: userId=" + userId 1156 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1157 } 1158 1159 if (mAppOpsService != null) { // We skip it until system-ready. 1160 final long token = Binder.clearCallingIdentity(); 1161 try { 1162 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1163 } catch (RemoteException e) { 1164 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1165 } finally { 1166 Binder.restoreCallingIdentity(token); 1167 } 1168 } 1169 1170 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1171 1172 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1173 } 1174 1175 private void propagateUserRestrictionsLR(final int userId, 1176 Bundle newRestrictions, Bundle prevRestrictions) { 1177 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1178 // actually, but we still need some kind of synchronization otherwise we might end up 1179 // calling listeners out-of-order, thus "LR". 1180 1181 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1182 return; 1183 } 1184 1185 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1186 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1187 1188 mHandler.post(new Runnable() { 1189 @Override 1190 public void run() { 1191 UserRestrictionsUtils.applyUserRestrictions( 1192 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1193 1194 final UserRestrictionsListener[] listeners; 1195 synchronized (mUserRestrictionsListeners) { 1196 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1197 mUserRestrictionsListeners.toArray(listeners); 1198 } 1199 for (int i = 0; i < listeners.length; i++) { 1200 listeners[i].onUserRestrictionsChanged(userId, 1201 newRestrictionsFinal, prevRestrictionsFinal); 1202 } 1203 } 1204 }); 1205 } 1206 1207 // Package private for the inner class. 1208 void applyUserRestrictionsLR(int userId) { 1209 updateUserRestrictionsInternalLR(null, userId); 1210 } 1211 1212 @GuardedBy("mRestrictionsLock") 1213 // Package private for the inner class. 1214 void applyUserRestrictionsForAllUsersLR() { 1215 if (DBG) { 1216 debug("applyUserRestrictionsForAllUsersLR"); 1217 } 1218 // First, invalidate all cached values. 1219 mCachedEffectiveUserRestrictions.clear(); 1220 1221 // We don't want to call into ActivityManagerNative while taking a lock, so we'll call 1222 // it on a handler. 1223 final Runnable r = new Runnable() { 1224 @Override 1225 public void run() { 1226 // Then get the list of running users. 1227 final int[] runningUsers; 1228 try { 1229 runningUsers = ActivityManagerNative.getDefault().getRunningUserIds(); 1230 } catch (RemoteException e) { 1231 Log.w(LOG_TAG, "Unable to access ActivityManagerNative"); 1232 return; 1233 } 1234 // Then re-calculate the effective restrictions and apply, only for running users. 1235 // It's okay if a new user has started after the getRunningUserIds() call, 1236 // because we'll do the same thing (re-calculate the restrictions and apply) 1237 // when we start a user. 1238 synchronized (mRestrictionsLock) { 1239 for (int i = 0; i < runningUsers.length; i++) { 1240 applyUserRestrictionsLR(runningUsers[i]); 1241 } 1242 } 1243 } 1244 }; 1245 mHandler.post(r); 1246 } 1247 1248 /** 1249 * Check if we've hit the limit of how many users can be created. 1250 */ 1251 private boolean isUserLimitReached() { 1252 int count; 1253 synchronized (mUsersLock) { 1254 count = getAliveUsersExcludingGuestsCountLU(); 1255 } 1256 return count >= UserManager.getMaxSupportedUsers(); 1257 } 1258 1259 @Override 1260 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1261 checkManageUsersPermission("check if more managed profiles can be added."); 1262 if (ActivityManager.isLowRamDeviceStatic()) { 1263 return false; 1264 } 1265 if (!mContext.getPackageManager().hasSystemFeature( 1266 PackageManager.FEATURE_MANAGED_USERS)) { 1267 return false; 1268 } 1269 // Limit number of managed profiles that can be created 1270 final int managedProfilesCount = getProfiles(userId, true).size() - 1; 1271 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1272 if (managedProfilesCount - profilesRemovedCount >= MAX_MANAGED_PROFILES) { 1273 return false; 1274 } 1275 synchronized(mUsersLock) { 1276 UserInfo userInfo = getUserInfoLU(userId); 1277 if (!userInfo.canHaveProfile()) { 1278 return false; 1279 } 1280 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1281 - profilesRemovedCount; 1282 // We allow creating a managed profile in the special case where there is only one user. 1283 return usersCountAfterRemoving == 1 1284 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1285 } 1286 } 1287 1288 private int getAliveUsersExcludingGuestsCountLU() { 1289 int aliveUserCount = 0; 1290 final int totalUserCount = mUsers.size(); 1291 // Skip over users being removed 1292 for (int i = 0; i < totalUserCount; i++) { 1293 UserInfo user = mUsers.valueAt(i).info; 1294 if (!mRemovingUserIds.get(user.id) 1295 && !user.isGuest() && !user.partial) { 1296 aliveUserCount++; 1297 } 1298 } 1299 return aliveUserCount; 1300 } 1301 1302 /** 1303 * Enforces that only the system UID or root's UID or apps that have the 1304 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1305 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1306 * permissions can make certain calls to the UserManager. 1307 * 1308 * @param message used as message if SecurityException is thrown 1309 * @throws SecurityException if the caller does not have enough privilege. 1310 */ 1311 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1312 final int uid = Binder.getCallingUid(); 1313 if (uid != Process.SYSTEM_UID && uid != 0 1314 && ActivityManager.checkComponentPermission( 1315 Manifest.permission.MANAGE_USERS, 1316 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1317 && ActivityManager.checkComponentPermission( 1318 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1319 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1320 throw new SecurityException( 1321 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1322 + message); 1323 } 1324 } 1325 1326 /** 1327 * Enforces that only the system UID or root's UID or apps that have the 1328 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1329 * permission can make certain calls to the UserManager. 1330 * 1331 * @param message used as message if SecurityException is thrown 1332 * @throws SecurityException if the caller is not system or root 1333 * @see #hasManageUsersPermission() 1334 */ 1335 private static final void checkManageUsersPermission(String message) { 1336 if (!hasManageUsersPermission()) { 1337 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1338 } 1339 } 1340 1341 /** 1342 * @return whether the calling UID is system UID or root's UID or the calling app has the 1343 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1344 */ 1345 private static final boolean hasManageUsersPermission() { 1346 final int callingUid = Binder.getCallingUid(); 1347 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1348 || callingUid == Process.ROOT_UID 1349 || ActivityManager.checkComponentPermission( 1350 android.Manifest.permission.MANAGE_USERS, 1351 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1352 } 1353 1354 /** 1355 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1356 * UserManager. 1357 * 1358 * @param message used as message if SecurityException is thrown 1359 * @throws SecurityException if the caller is not system or root 1360 */ 1361 private static void checkSystemOrRoot(String message) { 1362 final int uid = Binder.getCallingUid(); 1363 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1364 throw new SecurityException("Only system may: " + message); 1365 } 1366 } 1367 1368 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1369 try { 1370 File dir = new File(mUsersDir, Integer.toString(info.id)); 1371 File file = new File(dir, USER_PHOTO_FILENAME); 1372 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1373 if (!dir.exists()) { 1374 dir.mkdir(); 1375 FileUtils.setPermissions( 1376 dir.getPath(), 1377 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1378 -1, -1); 1379 } 1380 FileOutputStream os; 1381 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1382 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1383 info.iconPath = file.getAbsolutePath(); 1384 } 1385 try { 1386 os.close(); 1387 } catch (IOException ioe) { 1388 // What the ... ! 1389 } 1390 tmp.delete(); 1391 } catch (FileNotFoundException e) { 1392 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1393 } 1394 } 1395 1396 /** 1397 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1398 * cache it elsewhere. 1399 * @return the array of user ids. 1400 */ 1401 public int[] getUserIds() { 1402 synchronized (mUsersLock) { 1403 return mUserIds; 1404 } 1405 } 1406 1407 private void readUserListLP() { 1408 if (!mUserListFile.exists()) { 1409 fallbackToSingleUserLP(); 1410 return; 1411 } 1412 FileInputStream fis = null; 1413 AtomicFile userListFile = new AtomicFile(mUserListFile); 1414 try { 1415 fis = userListFile.openRead(); 1416 XmlPullParser parser = Xml.newPullParser(); 1417 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1418 int type; 1419 while ((type = parser.next()) != XmlPullParser.START_TAG 1420 && type != XmlPullParser.END_DOCUMENT) { 1421 // Skip 1422 } 1423 1424 if (type != XmlPullParser.START_TAG) { 1425 Slog.e(LOG_TAG, "Unable to read user list"); 1426 fallbackToSingleUserLP(); 1427 return; 1428 } 1429 1430 mNextSerialNumber = -1; 1431 if (parser.getName().equals(TAG_USERS)) { 1432 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1433 if (lastSerialNumber != null) { 1434 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1435 } 1436 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1437 if (versionNumber != null) { 1438 mUserVersion = Integer.parseInt(versionNumber); 1439 } 1440 } 1441 1442 final Bundle newDevicePolicyGlobalUserRestrictions = new Bundle(); 1443 1444 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1445 if (type == XmlPullParser.START_TAG) { 1446 final String name = parser.getName(); 1447 if (name.equals(TAG_USER)) { 1448 String id = parser.getAttributeValue(null, ATTR_ID); 1449 1450 UserData userData = readUserLP(Integer.parseInt(id)); 1451 1452 if (userData != null) { 1453 synchronized (mUsersLock) { 1454 mUsers.put(userData.info.id, userData); 1455 if (mNextSerialNumber < 0 1456 || mNextSerialNumber <= userData.info.id) { 1457 mNextSerialNumber = userData.info.id + 1; 1458 } 1459 } 1460 } 1461 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1462 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1463 && type != XmlPullParser.END_TAG) { 1464 if (type == XmlPullParser.START_TAG) { 1465 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1466 synchronized (mGuestRestrictions) { 1467 UserRestrictionsUtils 1468 .readRestrictions(parser, mGuestRestrictions); 1469 } 1470 } else if (parser.getName().equals(TAG_DEVICE_POLICY_RESTRICTIONS) 1471 ) { 1472 UserRestrictionsUtils.readRestrictions(parser, 1473 newDevicePolicyGlobalUserRestrictions); 1474 } 1475 break; 1476 } 1477 } 1478 } 1479 } 1480 } 1481 synchronized (mRestrictionsLock) { 1482 mDevicePolicyGlobalUserRestrictions = newDevicePolicyGlobalUserRestrictions; 1483 } 1484 updateUserIds(); 1485 upgradeIfNecessaryLP(); 1486 } catch (IOException | XmlPullParserException e) { 1487 fallbackToSingleUserLP(); 1488 } finally { 1489 IoUtils.closeQuietly(fis); 1490 } 1491 } 1492 1493 /** 1494 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1495 */ 1496 private void upgradeIfNecessaryLP() { 1497 final int originalVersion = mUserVersion; 1498 int userVersion = mUserVersion; 1499 if (userVersion < 1) { 1500 // Assign a proper name for the owner, if not initialized correctly before 1501 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1502 if ("Primary".equals(userData.info.name)) { 1503 userData.info.name = 1504 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1505 scheduleWriteUser(userData); 1506 } 1507 userVersion = 1; 1508 } 1509 1510 if (userVersion < 2) { 1511 // Owner should be marked as initialized 1512 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1513 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1514 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1515 scheduleWriteUser(userData); 1516 } 1517 userVersion = 2; 1518 } 1519 1520 1521 if (userVersion < 4) { 1522 userVersion = 4; 1523 } 1524 1525 if (userVersion < 5) { 1526 initDefaultGuestRestrictions(); 1527 userVersion = 5; 1528 } 1529 1530 if (userVersion < 6) { 1531 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1532 synchronized (mUsersLock) { 1533 for (int i = 0; i < mUsers.size(); i++) { 1534 UserData userData = mUsers.valueAt(i); 1535 // In non-split mode, only user 0 can have restricted profiles 1536 if (!splitSystemUser && userData.info.isRestricted() 1537 && (userData.info.restrictedProfileParentId 1538 == UserInfo.NO_PROFILE_GROUP_ID)) { 1539 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1540 scheduleWriteUser(userData); 1541 } 1542 } 1543 } 1544 userVersion = 6; 1545 } 1546 1547 if (userVersion < USER_VERSION) { 1548 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1549 + USER_VERSION); 1550 } else { 1551 mUserVersion = userVersion; 1552 1553 if (originalVersion < mUserVersion) { 1554 writeUserListLP(); 1555 } 1556 } 1557 } 1558 1559 private void fallbackToSingleUserLP() { 1560 int flags = UserInfo.FLAG_INITIALIZED; 1561 // In split system user mode, the admin and primary flags are assigned to the first human 1562 // user. 1563 if (!UserManager.isSplitSystemUser()) { 1564 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1565 } 1566 // Create the system user 1567 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 1568 UserData userData = new UserData(); 1569 userData.info = system; 1570 synchronized (mUsersLock) { 1571 mUsers.put(system.id, userData); 1572 } 1573 mNextSerialNumber = MIN_USER_ID; 1574 mUserVersion = USER_VERSION; 1575 1576 Bundle restrictions = new Bundle(); 1577 synchronized (mRestrictionsLock) { 1578 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1579 } 1580 1581 updateUserIds(); 1582 initDefaultGuestRestrictions(); 1583 1584 writeUserLP(userData); 1585 writeUserListLP(); 1586 } 1587 1588 private String getOwnerName() { 1589 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 1590 } 1591 1592 private void scheduleWriteUser(UserData UserData) { 1593 if (DBG) { 1594 debug("scheduleWriteUser"); 1595 } 1596 // No need to wrap it within a lock -- worst case, we'll just post the same message 1597 // twice. 1598 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 1599 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 1600 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1601 } 1602 } 1603 1604 /* 1605 * Writes the user file in this format: 1606 * 1607 * <user flags="20039023" id="0"> 1608 * <name>Primary</name> 1609 * </user> 1610 */ 1611 private void writeUserLP(UserData userData) { 1612 if (DBG) { 1613 debug("writeUserLP " + userData); 1614 } 1615 FileOutputStream fos = null; 1616 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 1617 try { 1618 fos = userFile.startWrite(); 1619 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1620 1621 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1622 final XmlSerializer serializer = new FastXmlSerializer(); 1623 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1624 serializer.startDocument(null, true); 1625 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1626 1627 final UserInfo userInfo = userData.info; 1628 serializer.startTag(null, TAG_USER); 1629 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 1630 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 1631 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 1632 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 1633 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 1634 Long.toString(userInfo.lastLoggedInTime)); 1635 if (userInfo.lastLoggedInFingerprint != null) { 1636 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 1637 userInfo.lastLoggedInFingerprint); 1638 } 1639 if (userInfo.iconPath != null) { 1640 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 1641 } 1642 if (userInfo.partial) { 1643 serializer.attribute(null, ATTR_PARTIAL, "true"); 1644 } 1645 if (userInfo.guestToRemove) { 1646 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 1647 } 1648 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 1649 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 1650 Integer.toString(userInfo.profileGroupId)); 1651 } 1652 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 1653 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 1654 Integer.toString(userInfo.restrictedProfileParentId)); 1655 } 1656 // Write seed data 1657 if (userData.persistSeedData) { 1658 if (userData.seedAccountName != null) { 1659 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 1660 } 1661 if (userData.seedAccountType != null) { 1662 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 1663 } 1664 } 1665 if (userInfo.name != null) { 1666 serializer.startTag(null, TAG_NAME); 1667 serializer.text(userInfo.name); 1668 serializer.endTag(null, TAG_NAME); 1669 } 1670 synchronized (mRestrictionsLock) { 1671 UserRestrictionsUtils.writeRestrictions(serializer, 1672 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 1673 UserRestrictionsUtils.writeRestrictions(serializer, 1674 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 1675 TAG_DEVICE_POLICY_RESTRICTIONS); 1676 } 1677 1678 if (userData.account != null) { 1679 serializer.startTag(null, TAG_ACCOUNT); 1680 serializer.text(userData.account); 1681 serializer.endTag(null, TAG_ACCOUNT); 1682 } 1683 1684 if (userData.persistSeedData && userData.seedAccountOptions != null) { 1685 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1686 userData.seedAccountOptions.saveToXml(serializer); 1687 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1688 } 1689 serializer.endTag(null, TAG_USER); 1690 1691 serializer.endDocument(); 1692 userFile.finishWrite(fos); 1693 } catch (Exception ioe) { 1694 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 1695 userFile.failWrite(fos); 1696 } 1697 } 1698 1699 /* 1700 * Writes the user list file in this format: 1701 * 1702 * <users nextSerialNumber="3"> 1703 * <user id="0"></user> 1704 * <user id="2"></user> 1705 * </users> 1706 */ 1707 private void writeUserListLP() { 1708 if (DBG) { 1709 debug("writeUserList"); 1710 } 1711 FileOutputStream fos = null; 1712 AtomicFile userListFile = new AtomicFile(mUserListFile); 1713 try { 1714 fos = userListFile.startWrite(); 1715 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1716 1717 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1718 final XmlSerializer serializer = new FastXmlSerializer(); 1719 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1720 serializer.startDocument(null, true); 1721 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1722 1723 serializer.startTag(null, TAG_USERS); 1724 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 1725 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 1726 1727 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 1728 synchronized (mGuestRestrictions) { 1729 UserRestrictionsUtils 1730 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 1731 } 1732 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 1733 synchronized (mRestrictionsLock) { 1734 UserRestrictionsUtils.writeRestrictions(serializer, 1735 mDevicePolicyGlobalUserRestrictions, TAG_DEVICE_POLICY_RESTRICTIONS); 1736 } 1737 int[] userIdsToWrite; 1738 synchronized (mUsersLock) { 1739 userIdsToWrite = new int[mUsers.size()]; 1740 for (int i = 0; i < userIdsToWrite.length; i++) { 1741 UserInfo user = mUsers.valueAt(i).info; 1742 userIdsToWrite[i] = user.id; 1743 } 1744 } 1745 for (int id : userIdsToWrite) { 1746 serializer.startTag(null, TAG_USER); 1747 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 1748 serializer.endTag(null, TAG_USER); 1749 } 1750 1751 serializer.endTag(null, TAG_USERS); 1752 1753 serializer.endDocument(); 1754 userListFile.finishWrite(fos); 1755 } catch (Exception e) { 1756 userListFile.failWrite(fos); 1757 Slog.e(LOG_TAG, "Error writing user list"); 1758 } 1759 } 1760 1761 private UserData readUserLP(int id) { 1762 int flags = 0; 1763 int serialNumber = id; 1764 String name = null; 1765 String account = null; 1766 String iconPath = null; 1767 long creationTime = 0L; 1768 long lastLoggedInTime = 0L; 1769 String lastLoggedInFingerprint = null; 1770 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 1771 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 1772 boolean partial = false; 1773 boolean guestToRemove = false; 1774 boolean persistSeedData = false; 1775 String seedAccountName = null; 1776 String seedAccountType = null; 1777 PersistableBundle seedAccountOptions = null; 1778 Bundle baseRestrictions = new Bundle(); 1779 Bundle localRestrictions = new Bundle(); 1780 1781 FileInputStream fis = null; 1782 try { 1783 AtomicFile userFile = 1784 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 1785 fis = userFile.openRead(); 1786 XmlPullParser parser = Xml.newPullParser(); 1787 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1788 int type; 1789 while ((type = parser.next()) != XmlPullParser.START_TAG 1790 && type != XmlPullParser.END_DOCUMENT) { 1791 // Skip 1792 } 1793 1794 if (type != XmlPullParser.START_TAG) { 1795 Slog.e(LOG_TAG, "Unable to read user " + id); 1796 return null; 1797 } 1798 1799 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 1800 int storedId = readIntAttribute(parser, ATTR_ID, -1); 1801 if (storedId != id) { 1802 Slog.e(LOG_TAG, "User id does not match the file name"); 1803 return null; 1804 } 1805 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 1806 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 1807 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 1808 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 1809 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 1810 lastLoggedInFingerprint = parser.getAttributeValue(null, 1811 ATTR_LAST_LOGGED_IN_FINGERPRINT); 1812 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 1813 UserInfo.NO_PROFILE_GROUP_ID); 1814 restrictedProfileParentId = readIntAttribute(parser, 1815 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 1816 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 1817 if ("true".equals(valueString)) { 1818 partial = true; 1819 } 1820 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 1821 if ("true".equals(valueString)) { 1822 guestToRemove = true; 1823 } 1824 1825 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 1826 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 1827 if (seedAccountName != null || seedAccountType != null) { 1828 persistSeedData = true; 1829 } 1830 1831 int outerDepth = parser.getDepth(); 1832 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1833 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1834 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1835 continue; 1836 } 1837 String tag = parser.getName(); 1838 if (TAG_NAME.equals(tag)) { 1839 type = parser.next(); 1840 if (type == XmlPullParser.TEXT) { 1841 name = parser.getText(); 1842 } 1843 } else if (TAG_RESTRICTIONS.equals(tag)) { 1844 UserRestrictionsUtils.readRestrictions(parser, baseRestrictions); 1845 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 1846 UserRestrictionsUtils.readRestrictions(parser, localRestrictions); 1847 } else if (TAG_ACCOUNT.equals(tag)) { 1848 type = parser.next(); 1849 if (type == XmlPullParser.TEXT) { 1850 account = parser.getText(); 1851 } 1852 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 1853 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 1854 persistSeedData = true; 1855 } 1856 } 1857 } 1858 1859 // Create the UserInfo object that gets passed around 1860 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 1861 userInfo.serialNumber = serialNumber; 1862 userInfo.creationTime = creationTime; 1863 userInfo.lastLoggedInTime = lastLoggedInTime; 1864 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 1865 userInfo.partial = partial; 1866 userInfo.guestToRemove = guestToRemove; 1867 userInfo.profileGroupId = profileGroupId; 1868 userInfo.restrictedProfileParentId = restrictedProfileParentId; 1869 1870 // Create the UserData object that's internal to this class 1871 UserData userData = new UserData(); 1872 userData.info = userInfo; 1873 userData.account = account; 1874 userData.seedAccountName = seedAccountName; 1875 userData.seedAccountType = seedAccountType; 1876 userData.persistSeedData = persistSeedData; 1877 userData.seedAccountOptions = seedAccountOptions; 1878 1879 synchronized (mRestrictionsLock) { 1880 mBaseUserRestrictions.put(id, baseRestrictions); 1881 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 1882 } 1883 return userData; 1884 } catch (IOException ioe) { 1885 } catch (XmlPullParserException pe) { 1886 } finally { 1887 if (fis != null) { 1888 try { 1889 fis.close(); 1890 } catch (IOException e) { 1891 } 1892 } 1893 } 1894 return null; 1895 } 1896 1897 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 1898 String valueString = parser.getAttributeValue(null, attr); 1899 if (valueString == null) return defaultValue; 1900 try { 1901 return Integer.parseInt(valueString); 1902 } catch (NumberFormatException nfe) { 1903 return defaultValue; 1904 } 1905 } 1906 1907 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 1908 String valueString = parser.getAttributeValue(null, attr); 1909 if (valueString == null) return defaultValue; 1910 try { 1911 return Long.parseLong(valueString); 1912 } catch (NumberFormatException nfe) { 1913 return defaultValue; 1914 } 1915 } 1916 1917 /** 1918 * Removes the app restrictions file for a specific package and user id, if it exists. 1919 */ 1920 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 1921 synchronized (mPackagesLock) { 1922 File dir = Environment.getUserSystemDirectory(userId); 1923 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 1924 if (resFile.exists()) { 1925 resFile.delete(); 1926 } 1927 } 1928 } 1929 1930 @Override 1931 public UserInfo createProfileForUser(String name, int flags, int userId) { 1932 checkManageUsersPermission("Only the system can create users"); 1933 return createUserInternal(name, flags, userId); 1934 } 1935 1936 @Override 1937 public UserInfo createUser(String name, int flags) { 1938 checkManageUsersPermission("Only the system can create users"); 1939 return createUserInternal(name, flags, UserHandle.USER_NULL); 1940 } 1941 1942 private UserInfo createUserInternal(String name, int flags, int parentId) { 1943 if (hasUserRestriction(UserManager.DISALLOW_ADD_USER, UserHandle.getCallingUserId())) { 1944 Log.w(LOG_TAG, "Cannot add user. DISALLOW_ADD_USER is enabled."); 1945 return null; 1946 } 1947 return createUserInternalUnchecked(name, flags, parentId); 1948 } 1949 1950 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId) { 1951 if (ActivityManager.isLowRamDeviceStatic()) { 1952 return null; 1953 } 1954 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 1955 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 1956 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 1957 final long ident = Binder.clearCallingIdentity(); 1958 UserInfo userInfo; 1959 UserData userData; 1960 final int userId; 1961 try { 1962 synchronized (mPackagesLock) { 1963 UserData parent = null; 1964 if (parentId != UserHandle.USER_NULL) { 1965 synchronized (mUsersLock) { 1966 parent = getUserDataLU(parentId); 1967 } 1968 if (parent == null) return null; 1969 } 1970 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 1971 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 1972 return null; 1973 } 1974 if (!isGuest && !isManagedProfile && isUserLimitReached()) { 1975 // If we're not adding a guest user or a managed profile and the limit has 1976 // been reached, cannot add a user. 1977 return null; 1978 } 1979 // If we're adding a guest and there already exists one, bail. 1980 if (isGuest && findCurrentGuestUser() != null) { 1981 return null; 1982 } 1983 // In legacy mode, restricted profile's parent can only be the owner user 1984 if (isRestricted && !UserManager.isSplitSystemUser() 1985 && (parentId != UserHandle.USER_SYSTEM)) { 1986 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 1987 return null; 1988 } 1989 if (isRestricted && UserManager.isSplitSystemUser()) { 1990 if (parent == null) { 1991 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 1992 + "specified"); 1993 return null; 1994 } 1995 if (!parent.info.canHaveProfile()) { 1996 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 1997 + "created for the specified parent user id " + parentId); 1998 return null; 1999 } 2000 } 2001 if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0) { 2002 Log.e(LOG_TAG, 2003 "Ephemeral users are supported on split-system-user systems only."); 2004 return null; 2005 } 2006 // In split system user mode, we assign the first human user the primary flag. 2007 // And if there is no device owner, we also assign the admin flag to primary user. 2008 if (UserManager.isSplitSystemUser() 2009 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2010 flags |= UserInfo.FLAG_PRIMARY; 2011 synchronized (mUsersLock) { 2012 if (!mIsDeviceManaged) { 2013 flags |= UserInfo.FLAG_ADMIN; 2014 } 2015 } 2016 } 2017 2018 userId = getNextAvailableId(); 2019 Environment.getUserSystemDirectory(userId).mkdirs(); 2020 boolean ephemeralGuests = Resources.getSystem() 2021 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2022 2023 synchronized (mUsersLock) { 2024 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2025 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2026 || (parent != null && parent.info.isEphemeral())) { 2027 flags |= UserInfo.FLAG_EPHEMERAL; 2028 } 2029 2030 userInfo = new UserInfo(userId, name, null, flags); 2031 userInfo.serialNumber = mNextSerialNumber++; 2032 long now = System.currentTimeMillis(); 2033 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2034 userInfo.partial = true; 2035 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2036 userData = new UserData(); 2037 userData.info = userInfo; 2038 mUsers.put(userId, userData); 2039 } 2040 writeUserLP(userData); 2041 writeUserListLP(); 2042 if (parent != null) { 2043 if (isManagedProfile) { 2044 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2045 parent.info.profileGroupId = parent.info.id; 2046 writeUserLP(parent); 2047 } 2048 userInfo.profileGroupId = parent.info.profileGroupId; 2049 } else if (isRestricted) { 2050 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2051 parent.info.restrictedProfileParentId = parent.info.id; 2052 writeUserLP(parent); 2053 } 2054 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2055 } 2056 } 2057 } 2058 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2059 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2060 mPm.prepareUserData(userId, userInfo.serialNumber, 2061 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2062 mPm.createNewUser(userId); 2063 userInfo.partial = false; 2064 synchronized (mPackagesLock) { 2065 writeUserLP(userData); 2066 } 2067 updateUserIds(); 2068 Bundle restrictions = new Bundle(); 2069 if (isGuest) { 2070 synchronized (mGuestRestrictions) { 2071 restrictions.putAll(mGuestRestrictions); 2072 } 2073 } 2074 synchronized (mRestrictionsLock) { 2075 mBaseUserRestrictions.append(userId, restrictions); 2076 } 2077 mPm.newUserCreated(userId); 2078 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2079 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2080 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2081 android.Manifest.permission.MANAGE_USERS); 2082 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED : TRON_USER_CREATED, 1); 2083 } finally { 2084 Binder.restoreCallingIdentity(ident); 2085 } 2086 return userInfo; 2087 } 2088 2089 /** 2090 * @hide 2091 */ 2092 @Override 2093 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2094 checkManageUsersPermission("setupRestrictedProfile"); 2095 final UserInfo user = createProfileForUser(name, UserInfo.FLAG_RESTRICTED, parentUserId); 2096 if (user == null) { 2097 return null; 2098 } 2099 long identity = Binder.clearCallingIdentity(); 2100 try { 2101 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2102 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2103 // the putIntForUser() will fail. 2104 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2105 android.provider.Settings.Secure.LOCATION_MODE, 2106 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2107 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2108 } finally { 2109 Binder.restoreCallingIdentity(identity); 2110 } 2111 return user; 2112 } 2113 2114 /** 2115 * Find the current guest user. If the Guest user is partial, 2116 * then do not include it in the results as it is about to die. 2117 */ 2118 private UserInfo findCurrentGuestUser() { 2119 synchronized (mUsersLock) { 2120 final int size = mUsers.size(); 2121 for (int i = 0; i < size; i++) { 2122 final UserInfo user = mUsers.valueAt(i).info; 2123 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2124 return user; 2125 } 2126 } 2127 } 2128 return null; 2129 } 2130 2131 /** 2132 * Mark this guest user for deletion to allow us to create another guest 2133 * and switch to that user before actually removing this guest. 2134 * @param userHandle the userid of the current guest 2135 * @return whether the user could be marked for deletion 2136 */ 2137 @Override 2138 public boolean markGuestForDeletion(int userHandle) { 2139 checkManageUsersPermission("Only the system can remove users"); 2140 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2141 UserManager.DISALLOW_REMOVE_USER, false)) { 2142 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2143 return false; 2144 } 2145 2146 long ident = Binder.clearCallingIdentity(); 2147 try { 2148 final UserData userData; 2149 synchronized (mPackagesLock) { 2150 synchronized (mUsersLock) { 2151 userData = mUsers.get(userHandle); 2152 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2153 return false; 2154 } 2155 } 2156 if (!userData.info.isGuest()) { 2157 return false; 2158 } 2159 // We set this to a guest user that is to be removed. This is a temporary state 2160 // where we are allowed to add new Guest users, even if this one is still not 2161 // removed. This user will still show up in getUserInfo() calls. 2162 // If we don't get around to removing this Guest user, it will be purged on next 2163 // startup. 2164 userData.info.guestToRemove = true; 2165 // Mark it as disabled, so that it isn't returned any more when 2166 // profiles are queried. 2167 userData.info.flags |= UserInfo.FLAG_DISABLED; 2168 writeUserLP(userData); 2169 } 2170 } finally { 2171 Binder.restoreCallingIdentity(ident); 2172 } 2173 return true; 2174 } 2175 2176 /** 2177 * Removes a user and all data directories created for that user. This method should be called 2178 * after the user's processes have been terminated. 2179 * @param userHandle the user's id 2180 */ 2181 @Override 2182 public boolean removeUser(int userHandle) { 2183 checkManageUsersPermission("Only the system can remove users"); 2184 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2185 UserManager.DISALLOW_REMOVE_USER, false)) { 2186 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2187 return false; 2188 } 2189 2190 long ident = Binder.clearCallingIdentity(); 2191 try { 2192 final UserData userData; 2193 int currentUser = ActivityManager.getCurrentUser(); 2194 if (currentUser == userHandle) { 2195 Log.w(LOG_TAG, "Current user cannot be removed"); 2196 return false; 2197 } 2198 synchronized (mPackagesLock) { 2199 synchronized (mUsersLock) { 2200 userData = mUsers.get(userHandle); 2201 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2202 return false; 2203 } 2204 2205 // We remember deleted user IDs to prevent them from being 2206 // reused during the current boot; they can still be reused 2207 // after a reboot. 2208 mRemovingUserIds.put(userHandle, true); 2209 } 2210 2211 try { 2212 mAppOpsService.removeUser(userHandle); 2213 } catch (RemoteException e) { 2214 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2215 } 2216 // Set this to a partially created user, so that the user will be purged 2217 // on next startup, in case the runtime stops now before stopping and 2218 // removing the user completely. 2219 userData.info.partial = true; 2220 // Mark it as disabled, so that it isn't returned any more when 2221 // profiles are queried. 2222 userData.info.flags |= UserInfo.FLAG_DISABLED; 2223 writeUserLP(userData); 2224 } 2225 2226 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2227 && userData.info.isManagedProfile()) { 2228 // Send broadcast to notify system that the user removed was a 2229 // managed user. 2230 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2231 } 2232 2233 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2234 int res; 2235 try { 2236 res = ActivityManagerNative.getDefault().stopUser(userHandle, /* force= */ true, 2237 new IStopUserCallback.Stub() { 2238 @Override 2239 public void userStopped(int userId) { 2240 finishRemoveUser(userId); 2241 } 2242 @Override 2243 public void userStopAborted(int userId) { 2244 } 2245 }); 2246 } catch (RemoteException e) { 2247 return false; 2248 } 2249 return res == ActivityManager.USER_OP_SUCCESS; 2250 } finally { 2251 Binder.restoreCallingIdentity(ident); 2252 } 2253 } 2254 2255 void finishRemoveUser(final int userHandle) { 2256 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2257 // Let other services shutdown any activity and clean up their state before completely 2258 // wiping the user's system directory and removing from the user list 2259 long ident = Binder.clearCallingIdentity(); 2260 try { 2261 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2262 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2263 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2264 android.Manifest.permission.MANAGE_USERS, 2265 2266 new BroadcastReceiver() { 2267 @Override 2268 public void onReceive(Context context, Intent intent) { 2269 if (DBG) { 2270 Slog.i(LOG_TAG, 2271 "USER_REMOVED broadcast sent, cleaning up user data " 2272 + userHandle); 2273 } 2274 new Thread() { 2275 @Override 2276 public void run() { 2277 // Clean up any ActivityManager state 2278 LocalServices.getService(ActivityManagerInternal.class) 2279 .onUserRemoved(userHandle); 2280 removeUserState(userHandle); 2281 } 2282 }.start(); 2283 } 2284 }, 2285 2286 null, Activity.RESULT_OK, null, null); 2287 } finally { 2288 Binder.restoreCallingIdentity(ident); 2289 } 2290 } 2291 2292 private void removeUserState(final int userHandle) { 2293 try { 2294 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2295 } catch (IllegalStateException e) { 2296 // This may be simply because the user was partially created. 2297 Slog.i(LOG_TAG, 2298 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2299 } 2300 2301 // Cleanup package manager settings 2302 mPm.cleanUpUser(this, userHandle); 2303 // Remove this user from the list 2304 synchronized (mUsersLock) { 2305 mUsers.remove(userHandle); 2306 mIsUserManaged.delete(userHandle); 2307 mUnlockingOrUnlockedUsers.delete(userHandle); 2308 } 2309 synchronized (mRestrictionsLock) { 2310 mBaseUserRestrictions.remove(userHandle); 2311 mAppliedUserRestrictions.remove(userHandle); 2312 mCachedEffectiveUserRestrictions.remove(userHandle); 2313 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2314 } 2315 // Update the user list 2316 synchronized (mPackagesLock) { 2317 writeUserListLP(); 2318 } 2319 // Remove user file 2320 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2321 userFile.delete(); 2322 updateUserIds(); 2323 2324 // Now that we've purged all the metadata above, destroy the actual data 2325 // on disk; if we battery pull in here we'll finish cleaning up when 2326 // reconciling after reboot. 2327 mPm.destroyUserData(userHandle, 2328 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2329 } 2330 2331 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2332 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2333 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2334 Intent.FLAG_RECEIVER_FOREGROUND); 2335 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2336 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2337 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2338 } 2339 2340 @Override 2341 public Bundle getApplicationRestrictions(String packageName) { 2342 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2343 } 2344 2345 @Override 2346 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2347 if (UserHandle.getCallingUserId() != userId 2348 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2349 checkSystemOrRoot("get application restrictions for other users/apps"); 2350 } 2351 synchronized (mPackagesLock) { 2352 // Read the restrictions from XML 2353 return readApplicationRestrictionsLP(packageName, userId); 2354 } 2355 } 2356 2357 @Override 2358 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2359 int userId) { 2360 checkSystemOrRoot("set application restrictions"); 2361 if (restrictions != null) { 2362 restrictions.setDefusable(true); 2363 } 2364 synchronized (mPackagesLock) { 2365 if (restrictions == null || restrictions.isEmpty()) { 2366 cleanAppRestrictionsForPackage(packageName, userId); 2367 } else { 2368 // Write the restrictions to XML 2369 writeApplicationRestrictionsLP(packageName, restrictions, userId); 2370 } 2371 } 2372 2373 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2374 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2375 changeIntent.setPackage(packageName); 2376 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2377 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2378 } 2379 2380 private int getUidForPackage(String packageName) { 2381 long ident = Binder.clearCallingIdentity(); 2382 try { 2383 return mContext.getPackageManager().getApplicationInfo(packageName, 2384 PackageManager.MATCH_UNINSTALLED_PACKAGES).uid; 2385 } catch (NameNotFoundException nnfe) { 2386 return -1; 2387 } finally { 2388 Binder.restoreCallingIdentity(ident); 2389 } 2390 } 2391 2392 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 2393 AtomicFile restrictionsFile = 2394 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2395 packageToRestrictionsFileName(packageName))); 2396 return readApplicationRestrictionsLP(restrictionsFile); 2397 } 2398 2399 @VisibleForTesting 2400 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 2401 final Bundle restrictions = new Bundle(); 2402 final ArrayList<String> values = new ArrayList<>(); 2403 if (!restrictionsFile.getBaseFile().exists()) { 2404 return restrictions; 2405 } 2406 2407 FileInputStream fis = null; 2408 try { 2409 fis = restrictionsFile.openRead(); 2410 XmlPullParser parser = Xml.newPullParser(); 2411 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2412 XmlUtils.nextElement(parser); 2413 if (parser.getEventType() != XmlPullParser.START_TAG) { 2414 Slog.e(LOG_TAG, "Unable to read restrictions file " 2415 + restrictionsFile.getBaseFile()); 2416 return restrictions; 2417 } 2418 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2419 readEntry(restrictions, values, parser); 2420 } 2421 } catch (IOException|XmlPullParserException e) { 2422 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2423 } finally { 2424 IoUtils.closeQuietly(fis); 2425 } 2426 return restrictions; 2427 } 2428 2429 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2430 XmlPullParser parser) throws XmlPullParserException, IOException { 2431 int type = parser.getEventType(); 2432 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2433 String key = parser.getAttributeValue(null, ATTR_KEY); 2434 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2435 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2436 if (multiple != null) { 2437 values.clear(); 2438 int count = Integer.parseInt(multiple); 2439 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2440 if (type == XmlPullParser.START_TAG 2441 && parser.getName().equals(TAG_VALUE)) { 2442 values.add(parser.nextText().trim()); 2443 count--; 2444 } 2445 } 2446 String [] valueStrings = new String[values.size()]; 2447 values.toArray(valueStrings); 2448 restrictions.putStringArray(key, valueStrings); 2449 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2450 restrictions.putBundle(key, readBundleEntry(parser, values)); 2451 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2452 final int outerDepth = parser.getDepth(); 2453 ArrayList<Bundle> bundleList = new ArrayList<>(); 2454 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2455 Bundle childBundle = readBundleEntry(parser, values); 2456 bundleList.add(childBundle); 2457 } 2458 restrictions.putParcelableArray(key, 2459 bundleList.toArray(new Bundle[bundleList.size()])); 2460 } else { 2461 String value = parser.nextText().trim(); 2462 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2463 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2464 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2465 restrictions.putInt(key, Integer.parseInt(value)); 2466 } else { 2467 restrictions.putString(key, value); 2468 } 2469 } 2470 } 2471 } 2472 2473 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2474 throws IOException, XmlPullParserException { 2475 Bundle childBundle = new Bundle(); 2476 final int outerDepth = parser.getDepth(); 2477 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2478 readEntry(childBundle, values, parser); 2479 } 2480 return childBundle; 2481 } 2482 2483 private void writeApplicationRestrictionsLP(String packageName, 2484 Bundle restrictions, int userId) { 2485 AtomicFile restrictionsFile = new AtomicFile( 2486 new File(Environment.getUserSystemDirectory(userId), 2487 packageToRestrictionsFileName(packageName))); 2488 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 2489 } 2490 2491 @VisibleForTesting 2492 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 2493 FileOutputStream fos = null; 2494 try { 2495 fos = restrictionsFile.startWrite(); 2496 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2497 2498 final XmlSerializer serializer = new FastXmlSerializer(); 2499 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2500 serializer.startDocument(null, true); 2501 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2502 2503 serializer.startTag(null, TAG_RESTRICTIONS); 2504 writeBundle(restrictions, serializer); 2505 serializer.endTag(null, TAG_RESTRICTIONS); 2506 2507 serializer.endDocument(); 2508 restrictionsFile.finishWrite(fos); 2509 } catch (Exception e) { 2510 restrictionsFile.failWrite(fos); 2511 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 2512 } 2513 } 2514 2515 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 2516 throws IOException { 2517 for (String key : restrictions.keySet()) { 2518 Object value = restrictions.get(key); 2519 serializer.startTag(null, TAG_ENTRY); 2520 serializer.attribute(null, ATTR_KEY, key); 2521 2522 if (value instanceof Boolean) { 2523 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 2524 serializer.text(value.toString()); 2525 } else if (value instanceof Integer) { 2526 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 2527 serializer.text(value.toString()); 2528 } else if (value == null || value instanceof String) { 2529 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 2530 serializer.text(value != null ? (String) value : ""); 2531 } else if (value instanceof Bundle) { 2532 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2533 writeBundle((Bundle) value, serializer); 2534 } else if (value instanceof Parcelable[]) { 2535 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 2536 Parcelable[] array = (Parcelable[]) value; 2537 for (Parcelable parcelable : array) { 2538 if (!(parcelable instanceof Bundle)) { 2539 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 2540 } 2541 serializer.startTag(null, TAG_ENTRY); 2542 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2543 writeBundle((Bundle) parcelable, serializer); 2544 serializer.endTag(null, TAG_ENTRY); 2545 } 2546 } else { 2547 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 2548 String[] values = (String[]) value; 2549 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 2550 for (String choice : values) { 2551 serializer.startTag(null, TAG_VALUE); 2552 serializer.text(choice != null ? choice : ""); 2553 serializer.endTag(null, TAG_VALUE); 2554 } 2555 } 2556 serializer.endTag(null, TAG_ENTRY); 2557 } 2558 } 2559 2560 @Override 2561 public int getUserSerialNumber(int userHandle) { 2562 synchronized (mUsersLock) { 2563 if (!exists(userHandle)) return -1; 2564 return getUserInfoLU(userHandle).serialNumber; 2565 } 2566 } 2567 2568 @Override 2569 public int getUserHandle(int userSerialNumber) { 2570 synchronized (mUsersLock) { 2571 for (int userId : mUserIds) { 2572 UserInfo info = getUserInfoLU(userId); 2573 if (info != null && info.serialNumber == userSerialNumber) return userId; 2574 } 2575 // Not found 2576 return -1; 2577 } 2578 } 2579 2580 @Override 2581 public long getUserCreationTime(int userHandle) { 2582 int callingUserId = UserHandle.getCallingUserId(); 2583 UserInfo userInfo = null; 2584 synchronized (mUsersLock) { 2585 if (callingUserId == userHandle) { 2586 userInfo = getUserInfoLU(userHandle); 2587 } else { 2588 UserInfo parent = getProfileParentLU(userHandle); 2589 if (parent != null && parent.id == callingUserId) { 2590 userInfo = getUserInfoLU(userHandle); 2591 } 2592 } 2593 } 2594 if (userInfo == null) { 2595 throw new SecurityException("userHandle can only be the calling user or a managed " 2596 + "profile associated with this user"); 2597 } 2598 return userInfo.creationTime; 2599 } 2600 2601 /** 2602 * Caches the list of user ids in an array, adjusting the array size when necessary. 2603 */ 2604 private void updateUserIds() { 2605 int num = 0; 2606 synchronized (mUsersLock) { 2607 final int userSize = mUsers.size(); 2608 for (int i = 0; i < userSize; i++) { 2609 if (!mUsers.valueAt(i).info.partial) { 2610 num++; 2611 } 2612 } 2613 final int[] newUsers = new int[num]; 2614 int n = 0; 2615 for (int i = 0; i < userSize; i++) { 2616 if (!mUsers.valueAt(i).info.partial) { 2617 newUsers[n++] = mUsers.keyAt(i); 2618 } 2619 } 2620 mUserIds = newUsers; 2621 } 2622 } 2623 2624 /** 2625 * Called right before a user is started. This gives us a chance to prepare 2626 * app storage and apply any user restrictions. 2627 */ 2628 public void onBeforeStartUser(int userId) { 2629 final int userSerial = getUserSerialNumber(userId); 2630 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 2631 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE); 2632 2633 if (userId != UserHandle.USER_SYSTEM) { 2634 synchronized (mRestrictionsLock) { 2635 applyUserRestrictionsLR(userId); 2636 } 2637 } 2638 } 2639 2640 /** 2641 * Called right before a user is unlocked. This gives us a chance to prepare 2642 * app storage. 2643 */ 2644 public void onBeforeUnlockUser(@UserIdInt int userId) { 2645 final int userSerial = getUserSerialNumber(userId); 2646 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 2647 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE); 2648 } 2649 2650 /** 2651 * Make a note of the last started time of a user and do some cleanup. 2652 * @param userId the user that was just foregrounded 2653 */ 2654 public void onUserLoggedIn(@UserIdInt int userId) { 2655 UserData userData = getUserDataNoChecks(userId); 2656 if (userData == null || userData.info.partial) { 2657 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 2658 return; 2659 } 2660 2661 final long now = System.currentTimeMillis(); 2662 if (now > EPOCH_PLUS_30_YEARS) { 2663 userData.info.lastLoggedInTime = now; 2664 } 2665 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 2666 scheduleWriteUser(userData); 2667 } 2668 2669 /** 2670 * Returns the next available user id, filling in any holes in the ids. 2671 * TODO: May not be a good idea to recycle ids, in case it results in confusion 2672 * for data and battery stats collection, or unexpected cross-talk. 2673 */ 2674 private int getNextAvailableId() { 2675 synchronized (mUsersLock) { 2676 int i = MIN_USER_ID; 2677 while (i < MAX_USER_ID) { 2678 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 2679 return i; 2680 } 2681 i++; 2682 } 2683 } 2684 throw new IllegalStateException("No user id available!"); 2685 } 2686 2687 private String packageToRestrictionsFileName(String packageName) { 2688 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 2689 } 2690 2691 /** 2692 * Enforce that serial number stored in user directory inode matches the 2693 * given expected value. Gracefully sets the serial number if currently 2694 * undefined. 2695 * 2696 * @throws IOException when problem extracting serial number, or serial 2697 * number is mismatched. 2698 */ 2699 public static void enforceSerialNumber(File file, int serialNumber) throws IOException { 2700 final int foundSerial = getSerialNumber(file); 2701 Slog.v(LOG_TAG, "Found " + file + " with serial number " + foundSerial); 2702 2703 if (foundSerial == -1) { 2704 Slog.d(LOG_TAG, "Serial number missing on " + file + "; assuming current is valid"); 2705 try { 2706 setSerialNumber(file, serialNumber); 2707 } catch (IOException e) { 2708 Slog.w(LOG_TAG, "Failed to set serial number on " + file, e); 2709 } 2710 2711 } else if (foundSerial != serialNumber) { 2712 throw new IOException("Found serial number " + foundSerial 2713 + " doesn't match expected " + serialNumber); 2714 } 2715 } 2716 2717 /** 2718 * Set serial number stored in user directory inode. 2719 * 2720 * @throws IOException if serial number was already set 2721 */ 2722 private static void setSerialNumber(File file, int serialNumber) 2723 throws IOException { 2724 try { 2725 final byte[] buf = Integer.toString(serialNumber).getBytes(StandardCharsets.UTF_8); 2726 Os.setxattr(file.getAbsolutePath(), XATTR_SERIAL, buf, OsConstants.XATTR_CREATE); 2727 } catch (ErrnoException e) { 2728 throw e.rethrowAsIOException(); 2729 } 2730 } 2731 2732 /** 2733 * Return serial number stored in user directory inode. 2734 * 2735 * @return parsed serial number, or -1 if not set 2736 */ 2737 private static int getSerialNumber(File file) throws IOException { 2738 try { 2739 final byte[] buf = new byte[256]; 2740 final int len = Os.getxattr(file.getAbsolutePath(), XATTR_SERIAL, buf); 2741 final String serial = new String(buf, 0, len); 2742 try { 2743 return Integer.parseInt(serial); 2744 } catch (NumberFormatException e) { 2745 throw new IOException("Bad serial number: " + serial); 2746 } 2747 } catch (ErrnoException e) { 2748 if (e.errno == OsConstants.ENODATA) { 2749 return -1; 2750 } else { 2751 throw e.rethrowAsIOException(); 2752 } 2753 } 2754 } 2755 2756 @Override 2757 public void setSeedAccountData(int userId, String accountName, String accountType, 2758 PersistableBundle accountOptions, boolean persist) { 2759 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 2760 synchronized (mPackagesLock) { 2761 final UserData userData; 2762 synchronized (mUsersLock) { 2763 userData = getUserDataLU(userId); 2764 if (userData == null) { 2765 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 2766 return; 2767 } 2768 userData.seedAccountName = accountName; 2769 userData.seedAccountType = accountType; 2770 userData.seedAccountOptions = accountOptions; 2771 userData.persistSeedData = persist; 2772 } 2773 if (persist) { 2774 writeUserLP(userData); 2775 } 2776 } 2777 } 2778 2779 @Override 2780 public String getSeedAccountName() throws RemoteException { 2781 checkManageUsersPermission("Cannot get seed account information"); 2782 synchronized (mUsersLock) { 2783 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2784 return userData.seedAccountName; 2785 } 2786 } 2787 2788 @Override 2789 public String getSeedAccountType() throws RemoteException { 2790 checkManageUsersPermission("Cannot get seed account information"); 2791 synchronized (mUsersLock) { 2792 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2793 return userData.seedAccountType; 2794 } 2795 } 2796 2797 @Override 2798 public PersistableBundle getSeedAccountOptions() throws RemoteException { 2799 checkManageUsersPermission("Cannot get seed account information"); 2800 synchronized (mUsersLock) { 2801 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2802 return userData.seedAccountOptions; 2803 } 2804 } 2805 2806 @Override 2807 public void clearSeedAccountData() throws RemoteException { 2808 checkManageUsersPermission("Cannot clear seed account information"); 2809 synchronized (mPackagesLock) { 2810 UserData userData; 2811 synchronized (mUsersLock) { 2812 userData = getUserDataLU(UserHandle.getCallingUserId()); 2813 if (userData == null) return; 2814 userData.clearSeedAccountData(); 2815 } 2816 writeUserLP(userData); 2817 } 2818 } 2819 2820 @Override 2821 public boolean someUserHasSeedAccount(String accountName, String accountType) 2822 throws RemoteException { 2823 checkManageUsersPermission("Cannot check seed account information"); 2824 synchronized (mUsersLock) { 2825 final int userSize = mUsers.size(); 2826 for (int i = 0; i < userSize; i++) { 2827 final UserData data = mUsers.valueAt(i); 2828 if (data.info.isInitialized()) continue; 2829 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 2830 continue; 2831 } 2832 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 2833 continue; 2834 } 2835 return true; 2836 } 2837 } 2838 return false; 2839 } 2840 2841 @Override 2842 public void onShellCommand(FileDescriptor in, FileDescriptor out, 2843 FileDescriptor err, String[] args, ResultReceiver resultReceiver) { 2844 (new Shell()).exec(this, in, out, err, args, resultReceiver); 2845 } 2846 2847 int onShellCommand(Shell shell, String cmd) { 2848 if (cmd == null) { 2849 return shell.handleDefaultCommands(cmd); 2850 } 2851 2852 final PrintWriter pw = shell.getOutPrintWriter(); 2853 try { 2854 switch(cmd) { 2855 case "list": 2856 return runList(pw); 2857 } 2858 } catch (RemoteException e) { 2859 pw.println("Remote exception: " + e); 2860 } 2861 return -1; 2862 } 2863 2864 private int runList(PrintWriter pw) throws RemoteException { 2865 final IActivityManager am = ActivityManagerNative.getDefault(); 2866 final List<UserInfo> users = getUsers(false); 2867 if (users == null) { 2868 pw.println("Error: couldn't get users"); 2869 return 1; 2870 } else { 2871 pw.println("Users:"); 2872 for (int i = 0; i < users.size(); i++) { 2873 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 2874 pw.println("\t" + users.get(i).toString() + running); 2875 } 2876 return 0; 2877 } 2878 } 2879 2880 @Override 2881 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2882 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 2883 != PackageManager.PERMISSION_GRANTED) { 2884 pw.println("Permission Denial: can't dump UserManager from from pid=" 2885 + Binder.getCallingPid() 2886 + ", uid=" + Binder.getCallingUid() 2887 + " without permission " 2888 + android.Manifest.permission.DUMP); 2889 return; 2890 } 2891 2892 long now = System.currentTimeMillis(); 2893 StringBuilder sb = new StringBuilder(); 2894 synchronized (mPackagesLock) { 2895 synchronized (mUsersLock) { 2896 pw.println("Users:"); 2897 for (int i = 0; i < mUsers.size(); i++) { 2898 UserData userData = mUsers.valueAt(i); 2899 if (userData == null) { 2900 continue; 2901 } 2902 UserInfo userInfo = userData.info; 2903 final int userId = userInfo.id; 2904 pw.print(" "); pw.print(userInfo); 2905 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 2906 if (mRemovingUserIds.get(userId)) { 2907 pw.print(" <removing> "); 2908 } 2909 if (userInfo.partial) { 2910 pw.print(" <partial>"); 2911 } 2912 pw.println(); 2913 pw.print(" Created: "); 2914 if (userInfo.creationTime == 0) { 2915 pw.println("<unknown>"); 2916 } else { 2917 sb.setLength(0); 2918 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 2919 sb.append(" ago"); 2920 pw.println(sb); 2921 } 2922 pw.print(" Last logged in: "); 2923 if (userInfo.lastLoggedInTime == 0) { 2924 pw.println("<unknown>"); 2925 } else { 2926 sb.setLength(0); 2927 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 2928 sb.append(" ago"); 2929 pw.println(sb); 2930 } 2931 pw.print(" Last logged in fingerprint: "); 2932 pw.println(userInfo.lastLoggedInFingerprint); 2933 pw.print(" Has profile owner: "); 2934 pw.println(mIsUserManaged.get(userId)); 2935 pw.println(" Restrictions:"); 2936 synchronized (mRestrictionsLock) { 2937 UserRestrictionsUtils.dumpRestrictions( 2938 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 2939 pw.println(" Device policy local restrictions:"); 2940 UserRestrictionsUtils.dumpRestrictions( 2941 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 2942 pw.println(" Effective restrictions:"); 2943 UserRestrictionsUtils.dumpRestrictions( 2944 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 2945 } 2946 2947 if (userData.account != null) { 2948 pw.print(" Account name: " + userData.account); 2949 pw.println(); 2950 } 2951 2952 if (userData.seedAccountName != null) { 2953 pw.print(" Seed account name: " + userData.seedAccountName); 2954 pw.println(); 2955 if (userData.seedAccountType != null) { 2956 pw.print(" account type: " + userData.seedAccountType); 2957 pw.println(); 2958 } 2959 if (userData.seedAccountOptions != null) { 2960 pw.print(" account options exist"); 2961 pw.println(); 2962 } 2963 } 2964 } 2965 } 2966 pw.println(); 2967 pw.println(" Device policy global restrictions:"); 2968 synchronized (mRestrictionsLock) { 2969 UserRestrictionsUtils 2970 .dumpRestrictions(pw, " ", mDevicePolicyGlobalUserRestrictions); 2971 } 2972 pw.println(); 2973 pw.println(" Guest restrictions:"); 2974 synchronized (mGuestRestrictions) { 2975 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 2976 } 2977 synchronized (mUsersLock) { 2978 pw.println(); 2979 pw.println(" Device managed: " + mIsDeviceManaged); 2980 } 2981 // Dump some capabilities 2982 pw.println(); 2983 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 2984 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 2985 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 2986 com.android.internal.R.bool.config_guestUserEphemeral)); 2987 } 2988 } 2989 2990 final class MainHandler extends Handler { 2991 2992 @Override 2993 public void handleMessage(Message msg) { 2994 switch (msg.what) { 2995 case WRITE_USER_MSG: 2996 removeMessages(WRITE_USER_MSG, msg.obj); 2997 synchronized (mPackagesLock) { 2998 int userId = ((UserData) msg.obj).info.id; 2999 UserData userData = getUserDataNoChecks(userId); 3000 if (userData != null) { 3001 writeUserLP(userData); 3002 } 3003 } 3004 } 3005 } 3006 } 3007 3008 /** 3009 * @param userId 3010 * @return whether the user has been initialized yet 3011 */ 3012 boolean isInitialized(int userId) { 3013 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3014 } 3015 3016 private class LocalService extends UserManagerInternal { 3017 @Override 3018 public void setDevicePolicyUserRestrictions(int userId, @NonNull Bundle localRestrictions, 3019 @Nullable Bundle globalRestrictions) { 3020 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, localRestrictions, 3021 globalRestrictions); 3022 } 3023 3024 @Override 3025 public Bundle getBaseUserRestrictions(int userId) { 3026 synchronized (mRestrictionsLock) { 3027 return mBaseUserRestrictions.get(userId); 3028 } 3029 } 3030 3031 @Override 3032 public void setBaseUserRestrictionsByDpmsForMigration( 3033 int userId, Bundle baseRestrictions) { 3034 synchronized (mRestrictionsLock) { 3035 mBaseUserRestrictions.put(userId, new Bundle(baseRestrictions)); 3036 invalidateEffectiveUserRestrictionsLR(userId); 3037 } 3038 3039 final UserData userData = getUserDataNoChecks(userId); 3040 synchronized (mPackagesLock) { 3041 if (userData != null) { 3042 writeUserLP(userData); 3043 } else { 3044 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3045 } 3046 } 3047 } 3048 3049 @Override 3050 public boolean getUserRestriction(int userId, String key) { 3051 return getUserRestrictions(userId).getBoolean(key); 3052 } 3053 3054 @Override 3055 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3056 synchronized (mUserRestrictionsListeners) { 3057 mUserRestrictionsListeners.add(listener); 3058 } 3059 } 3060 3061 @Override 3062 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3063 synchronized (mUserRestrictionsListeners) { 3064 mUserRestrictionsListeners.remove(listener); 3065 } 3066 } 3067 3068 @Override 3069 public void setDeviceManaged(boolean isManaged) { 3070 synchronized (mUsersLock) { 3071 mIsDeviceManaged = isManaged; 3072 } 3073 } 3074 3075 @Override 3076 public void setUserManaged(int userId, boolean isManaged) { 3077 synchronized (mUsersLock) { 3078 mIsUserManaged.put(userId, isManaged); 3079 } 3080 } 3081 3082 @Override 3083 public void setUserIcon(int userId, Bitmap bitmap) { 3084 long ident = Binder.clearCallingIdentity(); 3085 try { 3086 synchronized (mPackagesLock) { 3087 UserData userData = getUserDataNoChecks(userId); 3088 if (userData == null || userData.info.partial) { 3089 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3090 return; 3091 } 3092 writeBitmapLP(userData.info, bitmap); 3093 writeUserLP(userData); 3094 } 3095 sendUserInfoChangedBroadcast(userId); 3096 } finally { 3097 Binder.restoreCallingIdentity(ident); 3098 } 3099 } 3100 3101 @Override 3102 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3103 synchronized (mUsersLock) { 3104 mForceEphemeralUsers = forceEphemeralUsers; 3105 } 3106 } 3107 3108 @Override 3109 public void removeAllUsers() { 3110 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3111 // Remove the non-system users straight away. 3112 removeNonSystemUsers(); 3113 } else { 3114 // Switch to the system user first and then remove the other users. 3115 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3116 @Override 3117 public void onReceive(Context context, Intent intent) { 3118 int userId = 3119 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3120 if (userId != UserHandle.USER_SYSTEM) { 3121 return; 3122 } 3123 mContext.unregisterReceiver(this); 3124 removeNonSystemUsers(); 3125 } 3126 }; 3127 IntentFilter userSwitchedFilter = new IntentFilter(); 3128 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3129 mContext.registerReceiver( 3130 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3131 3132 // Switch to the system user. 3133 ActivityManager am = 3134 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3135 am.switchUser(UserHandle.USER_SYSTEM); 3136 } 3137 } 3138 3139 @Override 3140 public void onEphemeralUserStop(int userId) { 3141 synchronized (mUsersLock) { 3142 UserInfo userInfo = getUserInfoLU(userId); 3143 if (userInfo != null && userInfo.isEphemeral()) { 3144 // Do not allow switching back to the ephemeral user again as the user is going 3145 // to be deleted. 3146 userInfo.flags |= UserInfo.FLAG_DISABLED; 3147 if (userInfo.isGuest()) { 3148 // Indicate that the guest will be deleted after it stops. 3149 userInfo.guestToRemove = true; 3150 } 3151 } 3152 } 3153 } 3154 3155 @Override 3156 public UserInfo createUserEvenWhenDisallowed(String name, int flags) { 3157 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL); 3158 // Keep this in sync with UserManager.createUser 3159 if (user != null && !user.isAdmin()) { 3160 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3161 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3162 } 3163 return user; 3164 } 3165 3166 @Override 3167 public void setUserUnlockingOrUnlocked(int userId, boolean unlockingOrUnlocked) { 3168 synchronized (mUsersLock) { 3169 mUnlockingOrUnlockedUsers.put(userId, unlockingOrUnlocked); 3170 } 3171 } 3172 3173 @Override 3174 public boolean isUserUnlockingOrUnlocked(int userId) { 3175 synchronized (mUsersLock) { 3176 return mUnlockingOrUnlockedUsers.get(userId); 3177 } 3178 } 3179 } 3180 3181 /* Remove all the users except of the system one. */ 3182 private void removeNonSystemUsers() { 3183 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3184 synchronized (mUsersLock) { 3185 final int userSize = mUsers.size(); 3186 for (int i = 0; i < userSize; i++) { 3187 UserInfo ui = mUsers.valueAt(i).info; 3188 if (ui.id != UserHandle.USER_SYSTEM) { 3189 usersToRemove.add(ui); 3190 } 3191 } 3192 } 3193 for (UserInfo ui: usersToRemove) { 3194 removeUser(ui.id); 3195 } 3196 } 3197 3198 private class Shell extends ShellCommand { 3199 @Override 3200 public int onCommand(String cmd) { 3201 return onShellCommand(this, cmd); 3202 } 3203 3204 @Override 3205 public void onHelp() { 3206 final PrintWriter pw = getOutPrintWriter(); 3207 pw.println("User manager (user) commands:"); 3208 pw.println(" help"); 3209 pw.println(" Print this help text."); 3210 pw.println(""); 3211 pw.println(" list"); 3212 pw.println(" Prints all users on the system."); 3213 } 3214 } 3215 3216 private static void debug(String message) { 3217 Log.d(LOG_TAG, message + 3218 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3219 } 3220} 3221