UserManagerService.java revision f8451b98150564b340207327d0951f44753338d1
1 2/* 3 * Copyright (C) 2011 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18package com.android.server.pm; 19 20import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS; 21import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; 22 23import android.Manifest; 24import android.annotation.NonNull; 25import android.annotation.Nullable; 26import android.annotation.UserIdInt; 27import android.app.Activity; 28import android.app.ActivityManager; 29import android.app.ActivityManagerInternal; 30import android.app.ActivityManagerNative; 31import android.app.IActivityManager; 32import android.app.IStopUserCallback; 33import android.app.KeyguardManager; 34import android.content.BroadcastReceiver; 35import android.content.Context; 36import android.content.Intent; 37import android.content.IntentFilter; 38import android.content.IntentSender; 39import android.content.pm.PackageManager; 40import android.content.pm.PackageManager.NameNotFoundException; 41import android.content.pm.UserInfo; 42import android.content.res.Resources; 43import android.graphics.Bitmap; 44import android.os.Binder; 45import android.os.Build; 46import android.os.Bundle; 47import android.os.Debug; 48import android.os.Environment; 49import android.os.FileUtils; 50import android.os.Handler; 51import android.os.IBinder; 52import android.os.IUserManager; 53import android.os.Message; 54import android.os.ParcelFileDescriptor; 55import android.os.Parcelable; 56import android.os.PersistableBundle; 57import android.os.Process; 58import android.os.RemoteException; 59import android.os.ResultReceiver; 60import android.os.SELinux; 61import android.os.ServiceManager; 62import android.os.ShellCommand; 63import android.os.UserHandle; 64import android.os.UserManager; 65import android.os.UserManagerInternal; 66import android.os.UserManagerInternal.UserRestrictionsListener; 67import android.os.storage.StorageManager; 68import android.system.ErrnoException; 69import android.system.Os; 70import android.system.OsConstants; 71import android.util.AtomicFile; 72import android.util.IntArray; 73import android.util.Log; 74import android.util.Slog; 75import android.util.SparseArray; 76import android.util.SparseBooleanArray; 77import android.util.TimeUtils; 78import android.util.Xml; 79 80import com.android.internal.annotations.GuardedBy; 81import com.android.internal.annotations.VisibleForTesting; 82import com.android.internal.app.IAppOpsService; 83import com.android.internal.logging.MetricsLogger; 84import com.android.internal.util.FastXmlSerializer; 85import com.android.internal.util.Preconditions; 86import com.android.internal.util.XmlUtils; 87import com.android.internal.widget.LockPatternUtils; 88import com.android.server.LocalServices; 89 90import libcore.io.IoUtils; 91import libcore.util.Objects; 92 93import org.xmlpull.v1.XmlPullParser; 94import org.xmlpull.v1.XmlPullParserException; 95import org.xmlpull.v1.XmlSerializer; 96 97import java.io.BufferedOutputStream; 98import java.io.File; 99import java.io.FileDescriptor; 100import java.io.FileInputStream; 101import java.io.FileNotFoundException; 102import java.io.FileOutputStream; 103import java.io.IOException; 104import java.io.PrintWriter; 105import java.nio.charset.StandardCharsets; 106import java.util.ArrayList; 107import java.util.List; 108 109/** 110 * Service for {@link UserManager}. 111 * 112 * Method naming convention: 113 * <ul> 114 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 115 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 116 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 117 * </ul> 118 */ 119public class UserManagerService extends IUserManager.Stub { 120 private static final String LOG_TAG = "UserManagerService"; 121 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 122 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 123 124 private static final String TAG_NAME = "name"; 125 private static final String TAG_ACCOUNT = "account"; 126 private static final String ATTR_FLAGS = "flags"; 127 private static final String ATTR_ICON_PATH = "icon"; 128 private static final String ATTR_ID = "id"; 129 private static final String ATTR_CREATION_TIME = "created"; 130 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 131 private static final String ATTR_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint"; 132 private static final String ATTR_SERIAL_NO = "serialNumber"; 133 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 134 private static final String ATTR_PARTIAL = "partial"; 135 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 136 private static final String ATTR_USER_VERSION = "version"; 137 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 138 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 139 private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; 140 private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; 141 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 142 private static final String TAG_USERS = "users"; 143 private static final String TAG_USER = "user"; 144 private static final String TAG_RESTRICTIONS = "restrictions"; 145 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 146 private static final String TAG_ENTRY = "entry"; 147 private static final String TAG_VALUE = "value"; 148 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 149 private static final String ATTR_KEY = "key"; 150 private static final String ATTR_VALUE_TYPE = "type"; 151 private static final String ATTR_MULTIPLE = "m"; 152 153 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 154 private static final String ATTR_TYPE_STRING = "s"; 155 private static final String ATTR_TYPE_BOOLEAN = "b"; 156 private static final String ATTR_TYPE_INTEGER = "i"; 157 private static final String ATTR_TYPE_BUNDLE = "B"; 158 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 159 160 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 161 private static final String USER_LIST_FILENAME = "userlist.xml"; 162 private static final String USER_PHOTO_FILENAME = "photo.png"; 163 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 164 165 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 166 private static final String XML_SUFFIX = ".xml"; 167 168 private static final int MIN_USER_ID = 10; 169 // We need to keep process uid within Integer.MAX_VALUE. 170 private static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 171 172 private static final int USER_VERSION = 6; 173 174 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 175 176 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 177 // without first making sure that the rest of the framework is prepared for it. 178 private static final int MAX_MANAGED_PROFILES = 1; 179 180 static final int WRITE_USER_MSG = 1; 181 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 182 183 private static final String XATTR_SERIAL = "user.serial"; 184 185 // Tron counters 186 private static final String TRON_GUEST_CREATED = "users_guest_created"; 187 private static final String TRON_USER_CREATED = "users_user_created"; 188 189 private final Context mContext; 190 private final PackageManagerService mPm; 191 private final Object mPackagesLock; 192 // Short-term lock for internal state, when interaction/sync with PM is not required 193 private final Object mUsersLock = new Object(); 194 private final Object mRestrictionsLock = new Object(); 195 196 private final Handler mHandler; 197 198 private final File mUsersDir; 199 private final File mUserListFile; 200 201 private static final IBinder mUserRestriconToken = new Binder(); 202 203 /** 204 * User-related information that is used for persisting to flash. Only UserInfo is 205 * directly exposed to other system apps. 206 */ 207 private static class UserData { 208 // Basic user information and properties 209 UserInfo info; 210 // Account name used when there is a strong association between a user and an account 211 String account; 212 // Account information for seeding into a newly created user. This could also be 213 // used for login validation for an existing user, for updating their credentials. 214 // In the latter case, data may not need to be persisted as it is only valid for the 215 // current login session. 216 String seedAccountName; 217 String seedAccountType; 218 PersistableBundle seedAccountOptions; 219 // Whether to perist the seed account information to be available after a boot 220 boolean persistSeedData; 221 222 void clearSeedAccountData() { 223 seedAccountName = null; 224 seedAccountType = null; 225 seedAccountOptions = null; 226 persistSeedData = false; 227 } 228 } 229 230 @GuardedBy("mUsersLock") 231 private final SparseArray<UserData> mUsers = new SparseArray<>(); 232 233 /** 234 * User restrictions set via UserManager. This doesn't include restrictions set by 235 * device owner / profile owners. 236 * 237 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 238 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 239 * maybe shared between {@link #mBaseUserRestrictions} and 240 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 241 * (Otherwise we won't be able to detect what restrictions have changed in 242 * {@link #updateUserRestrictionsInternalLR}. 243 */ 244 @GuardedBy("mRestrictionsLock") 245 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 246 247 /** 248 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 249 * with device / profile owner restrictions. We'll initialize it lazily; use 250 * {@link #getEffectiveUserRestrictions} to access it. 251 * 252 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 253 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 254 * maybe shared between {@link #mBaseUserRestrictions} and 255 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 256 * (Otherwise we won't be able to detect what restrictions have changed in 257 * {@link #updateUserRestrictionsInternalLR}. 258 */ 259 @GuardedBy("mRestrictionsLock") 260 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 261 262 /** 263 * User restrictions that have already been applied in 264 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 265 * that have changed since the last 266 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 267 */ 268 @GuardedBy("mRestrictionsLock") 269 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 270 271 /** 272 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 273 * that should be applied to all users, including guests. 274 */ 275 @GuardedBy("mRestrictionsLock") 276 private Bundle mDevicePolicyGlobalUserRestrictions; 277 278 /** 279 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 280 * for each user. 281 */ 282 @GuardedBy("mRestrictionsLock") 283 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 284 285 @GuardedBy("mGuestRestrictions") 286 private final Bundle mGuestRestrictions = new Bundle(); 287 288 /** 289 * Set of user IDs being actively removed. Removed IDs linger in this set 290 * for several seconds to work around a VFS caching issue. 291 */ 292 @GuardedBy("mUsersLock") 293 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 294 295 @GuardedBy("mUsersLock") 296 private int[] mUserIds; 297 @GuardedBy("mPackagesLock") 298 private int mNextSerialNumber; 299 private int mUserVersion = 0; 300 301 private IAppOpsService mAppOpsService; 302 303 private final LocalService mLocalService; 304 305 @GuardedBy("mUsersLock") 306 private boolean mIsDeviceManaged; 307 308 @GuardedBy("mUsersLock") 309 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 310 311 @GuardedBy("mUserRestrictionsListeners") 312 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 313 new ArrayList<>(); 314 315 private final LockPatternUtils mLockPatternUtils; 316 317 /** 318 * Whether all users should be created ephemeral. 319 */ 320 @GuardedBy("mUsersLock") 321 private boolean mForceEphemeralUsers; 322 323 private static UserManagerService sInstance; 324 325 public static UserManagerService getInstance() { 326 synchronized (UserManagerService.class) { 327 return sInstance; 328 } 329 } 330 331 @VisibleForTesting 332 UserManagerService(File dataDir) { 333 this(null, null, new Object(), dataDir); 334 } 335 336 /** 337 * Called by package manager to create the service. This is closely 338 * associated with the package manager, and the given lock is the 339 * package manager's own lock. 340 */ 341 UserManagerService(Context context, PackageManagerService pm, Object packagesLock) { 342 this(context, pm, packagesLock, Environment.getDataDirectory()); 343 } 344 345 private UserManagerService(Context context, PackageManagerService pm, 346 Object packagesLock, File dataDir) { 347 mContext = context; 348 mPm = pm; 349 mPackagesLock = packagesLock; 350 mHandler = new MainHandler(); 351 synchronized (mPackagesLock) { 352 mUsersDir = new File(dataDir, USER_INFO_DIR); 353 mUsersDir.mkdirs(); 354 // Make zeroth user directory, for services to migrate their files to that location 355 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 356 userZeroDir.mkdirs(); 357 FileUtils.setPermissions(mUsersDir.toString(), 358 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 359 -1, -1); 360 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 361 initDefaultGuestRestrictions(); 362 readUserListLP(); 363 sInstance = this; 364 } 365 mLocalService = new LocalService(); 366 LocalServices.addService(UserManagerInternal.class, mLocalService); 367 mLockPatternUtils = new LockPatternUtils(mContext); 368 } 369 370 void systemReady() { 371 // Prune out any partially created, partially removed and ephemeral users. 372 ArrayList<UserInfo> partials = new ArrayList<>(); 373 synchronized (mUsersLock) { 374 final int userSize = mUsers.size(); 375 for (int i = 0; i < userSize; i++) { 376 UserInfo ui = mUsers.valueAt(i).info; 377 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 378 partials.add(ui); 379 } 380 } 381 } 382 final int partialsSize = partials.size(); 383 for (int i = 0; i < partialsSize; i++) { 384 UserInfo ui = partials.get(i); 385 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 386 + " (name=" + ui.name + ")"); 387 removeUserState(ui.id); 388 } 389 390 mAppOpsService = IAppOpsService.Stub.asInterface( 391 ServiceManager.getService(Context.APP_OPS_SERVICE)); 392 393 synchronized (mRestrictionsLock) { 394 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 395 } 396 397 UserInfo currentGuestUser = findCurrentGuestUser(); 398 if (currentGuestUser != null && !hasUserRestriction( 399 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 400 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 401 // to it, in case this guest was created in a previous version where this 402 // user restriction was not a default guest restriction. 403 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 404 } 405 } 406 407 @Override 408 public String getUserAccount(int userId) { 409 checkManageUserAndAcrossUsersFullPermission("get user account"); 410 synchronized (mUsersLock) { 411 return mUsers.get(userId).account; 412 } 413 } 414 415 @Override 416 public void setUserAccount(int userId, String accountName) { 417 checkManageUserAndAcrossUsersFullPermission("set user account"); 418 UserData userToUpdate = null; 419 synchronized (mPackagesLock) { 420 synchronized (mUsersLock) { 421 final UserData userData = mUsers.get(userId); 422 if (userData == null) { 423 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 424 return; 425 } 426 String currentAccount = userData.account; 427 if (!Objects.equal(currentAccount, accountName)) { 428 userData.account = accountName; 429 userToUpdate = userData; 430 } 431 } 432 433 if (userToUpdate != null) { 434 writeUserLP(userToUpdate); 435 } 436 } 437 } 438 439 @Override 440 public UserInfo getPrimaryUser() { 441 checkManageUsersPermission("query users"); 442 synchronized (mUsersLock) { 443 final int userSize = mUsers.size(); 444 for (int i = 0; i < userSize; i++) { 445 UserInfo ui = mUsers.valueAt(i).info; 446 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 447 return ui; 448 } 449 } 450 } 451 return null; 452 } 453 454 @Override 455 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 456 checkManageUsersPermission("query users"); 457 synchronized (mUsersLock) { 458 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 459 final int userSize = mUsers.size(); 460 for (int i = 0; i < userSize; i++) { 461 UserInfo ui = mUsers.valueAt(i).info; 462 if (ui.partial) { 463 continue; 464 } 465 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 466 users.add(userWithName(ui)); 467 } 468 } 469 return users; 470 } 471 } 472 473 @Override 474 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 475 boolean returnFullInfo = true; 476 if (userId != UserHandle.getCallingUserId()) { 477 checkManageUsersPermission("getting profiles related to user " + userId); 478 } else { 479 returnFullInfo = hasManageUsersPermission(); 480 } 481 final long ident = Binder.clearCallingIdentity(); 482 try { 483 synchronized (mUsersLock) { 484 return getProfilesLU(userId, enabledOnly, returnFullInfo); 485 } 486 } finally { 487 Binder.restoreCallingIdentity(ident); 488 } 489 } 490 491 @Override 492 public int[] getProfileIds(int userId, boolean enabledOnly) { 493 if (userId != UserHandle.getCallingUserId()) { 494 checkManageUsersPermission("getting profiles related to user " + userId); 495 } 496 final long ident = Binder.clearCallingIdentity(); 497 try { 498 synchronized (mUsersLock) { 499 return getProfileIdsLU(userId, enabledOnly).toArray(); 500 } 501 } finally { 502 Binder.restoreCallingIdentity(ident); 503 } 504 } 505 506 /** Assume permissions already checked and caller's identity cleared */ 507 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 508 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 509 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 510 for (int i = 0; i < profileIds.size(); i++) { 511 int profileId = profileIds.get(i); 512 UserInfo userInfo = mUsers.get(profileId).info; 513 // If full info is not required - clear PII data to prevent 3P apps from reading it 514 if (!fullInfo) { 515 userInfo = new UserInfo(userInfo); 516 userInfo.name = null; 517 userInfo.iconPath = null; 518 } else { 519 userInfo = userWithName(userInfo); 520 } 521 users.add(userInfo); 522 } 523 return users; 524 } 525 526 /** 527 * Assume permissions already checked and caller's identity cleared 528 */ 529 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 530 UserInfo user = getUserInfoLU(userId); 531 IntArray result = new IntArray(mUsers.size()); 532 if (user == null) { 533 // Probably a dying user 534 return result; 535 } 536 final int userSize = mUsers.size(); 537 for (int i = 0; i < userSize; i++) { 538 UserInfo profile = mUsers.valueAt(i).info; 539 if (!isProfileOf(user, profile)) { 540 continue; 541 } 542 if (enabledOnly && !profile.isEnabled()) { 543 continue; 544 } 545 if (mRemovingUserIds.get(profile.id)) { 546 continue; 547 } 548 if (profile.partial) { 549 continue; 550 } 551 result.add(profile.id); 552 } 553 return result; 554 } 555 556 @Override 557 public int getCredentialOwnerProfile(int userHandle) { 558 checkManageUsersPermission("get the credential owner"); 559 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 560 synchronized (mUsersLock) { 561 UserInfo profileParent = getProfileParentLU(userHandle); 562 if (profileParent != null) { 563 return profileParent.id; 564 } 565 } 566 } 567 568 return userHandle; 569 } 570 571 @Override 572 public boolean isSameProfileGroup(int userId, int otherUserId) { 573 if (userId == otherUserId) return true; 574 checkManageUsersPermission("check if in the same profile group"); 575 synchronized (mPackagesLock) { 576 return isSameProfileGroupLP(userId, otherUserId); 577 } 578 } 579 580 private boolean isSameProfileGroupLP(int userId, int otherUserId) { 581 synchronized (mUsersLock) { 582 UserInfo userInfo = getUserInfoLU(userId); 583 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 584 return false; 585 } 586 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 587 if (otherUserInfo == null 588 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 589 return false; 590 } 591 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 592 } 593 } 594 595 @Override 596 public UserInfo getProfileParent(int userHandle) { 597 checkManageUsersPermission("get the profile parent"); 598 synchronized (mUsersLock) { 599 return getProfileParentLU(userHandle); 600 } 601 } 602 603 private UserInfo getProfileParentLU(int userHandle) { 604 UserInfo profile = getUserInfoLU(userHandle); 605 if (profile == null) { 606 return null; 607 } 608 int parentUserId = profile.profileGroupId; 609 if (parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 610 return null; 611 } else { 612 return getUserInfoLU(parentUserId); 613 } 614 } 615 616 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 617 return user.id == profile.id || 618 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 619 && user.profileGroupId == profile.profileGroupId); 620 } 621 622 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 623 UserHandle parentHandle, boolean inQuietMode) { 624 Intent intent = new Intent(); 625 if (inQuietMode) { 626 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 627 } else { 628 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 629 } 630 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 631 intent.putExtra(Intent.EXTRA_USER, profileHandle); 632 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 633 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 634 mContext.sendBroadcastAsUser(intent, parentHandle); 635 636 //TODO: remove once Launcher3 is updated. 637 Intent oldIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_AVAILABILITY_CHANGED); 638 oldIntent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 639 oldIntent.putExtra(Intent.EXTRA_USER, profileHandle); 640 oldIntent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 641 oldIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 642 mContext.sendBroadcastAsUser(oldIntent, parentHandle); 643 644 } 645 646 @Override 647 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { 648 checkManageUsersPermission("silence profile"); 649 boolean changed = false; 650 UserInfo profile, parent; 651 synchronized (mPackagesLock) { 652 synchronized (mUsersLock) { 653 profile = getUserInfoLU(userHandle); 654 parent = getProfileParentLU(userHandle); 655 656 } 657 if (profile == null || !profile.isManagedProfile()) { 658 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 659 } 660 if (profile.isQuietModeEnabled() != enableQuietMode) { 661 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 662 writeUserLP(getUserDataLU(profile.id)); 663 changed = true; 664 } 665 } 666 if (changed) { 667 long identity = Binder.clearCallingIdentity(); 668 try { 669 if (enableQuietMode) { 670 LocalServices.getService(ActivityManagerInternal.class) 671 .killForegroundAppsForUser(userHandle); 672 ActivityManagerNative.getDefault().stopUser(userHandle, /* force */true, null); 673 } else { 674 ActivityManagerNative.getDefault().startUserInBackground(userHandle); 675 } 676 } catch (RemoteException e) { 677 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 678 } finally { 679 Binder.restoreCallingIdentity(identity); 680 } 681 682 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 683 enableQuietMode); 684 } 685 } 686 687 @Override 688 public boolean isQuietModeEnabled(int userHandle) { 689 synchronized (mPackagesLock) { 690 UserInfo info; 691 synchronized (mUsersLock) { 692 info = getUserInfoLU(userHandle); 693 } 694 if (info == null || !info.isManagedProfile()) { 695 return false; 696 } 697 return info.isQuietModeEnabled(); 698 } 699 } 700 701 @Override 702 public boolean trySetQuietModeDisabled(int userHandle, IntentSender target) { 703 if (mContext.getSystemService(StorageManager.class).isUserKeyUnlocked(userHandle) 704 || !mLockPatternUtils.isSecure(userHandle) 705 || !mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 706 // if the user is already unlocked, no need to show a profile challenge 707 setQuietModeEnabled(userHandle, false); 708 return true; 709 } 710 711 long identity = Binder.clearCallingIdentity(); 712 try { 713 // otherwise, we show a profile challenge to trigger decryption of the user 714 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 715 Context.KEYGUARD_SERVICE); 716 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 717 userHandle); 718 if (unlockIntent == null) { 719 return false; 720 } 721 if (target != null) { 722 unlockIntent.putExtra(Intent.EXTRA_INTENT, target); 723 } 724 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 725 mContext.startActivity(unlockIntent); 726 } finally { 727 Binder.restoreCallingIdentity(identity); 728 } 729 return false; 730 } 731 732 @Override 733 public void setUserEnabled(int userId) { 734 checkManageUsersPermission("enable user"); 735 synchronized (mPackagesLock) { 736 UserInfo info; 737 synchronized (mUsersLock) { 738 info = getUserInfoLU(userId); 739 } 740 if (info != null && !info.isEnabled()) { 741 info.flags ^= UserInfo.FLAG_DISABLED; 742 writeUserLP(getUserDataLU(info.id)); 743 } 744 } 745 } 746 747 @Override 748 public UserInfo getUserInfo(int userId) { 749 checkManageUsersPermission("query user"); 750 synchronized (mUsersLock) { 751 return userWithName(getUserInfoLU(userId)); 752 } 753 } 754 755 /** 756 * Returns a UserInfo object with the name filled in, for Owner, or the original 757 * if the name is already set. 758 */ 759 private UserInfo userWithName(UserInfo orig) { 760 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 761 UserInfo withName = new UserInfo(orig); 762 withName.name = getOwnerName(); 763 return withName; 764 } else { 765 return orig; 766 } 767 } 768 769 @Override 770 public boolean isManagedProfile(int userId) { 771 int callingUserId = UserHandle.getCallingUserId(); 772 if (callingUserId != userId && !hasManageUsersPermission()) { 773 synchronized (mPackagesLock) { 774 if (!isSameProfileGroupLP(callingUserId, userId)) { 775 throw new SecurityException( 776 "You need MANAGE_USERS permission to: check if specified user a " + 777 "managed profile outside your profile group"); 778 } 779 } 780 } 781 synchronized (mUsersLock) { 782 UserInfo userInfo = getUserInfoLU(userId); 783 return userInfo != null && userInfo.isManagedProfile(); 784 } 785 } 786 787 @Override 788 public boolean isRestricted() { 789 synchronized (mUsersLock) { 790 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 791 } 792 } 793 794 @Override 795 public boolean canHaveRestrictedProfile(int userId) { 796 checkManageUsersPermission("canHaveRestrictedProfile"); 797 synchronized (mUsersLock) { 798 final UserInfo userInfo = getUserInfoLU(userId); 799 if (userInfo == null || !userInfo.canHaveProfile()) { 800 return false; 801 } 802 if (!userInfo.isAdmin()) { 803 return false; 804 } 805 // restricted profile can be created if there is no DO set and the admin user has no PO; 806 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 807 } 808 } 809 810 /* 811 * Should be locked on mUsers before calling this. 812 */ 813 private UserInfo getUserInfoLU(int userId) { 814 final UserData userData = mUsers.get(userId); 815 // If it is partial and not in the process of being removed, return as unknown user. 816 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 817 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 818 return null; 819 } 820 return userData != null ? userData.info : null; 821 } 822 823 private UserData getUserDataLU(int userId) { 824 final UserData userData = mUsers.get(userId); 825 // If it is partial and not in the process of being removed, return as unknown user. 826 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 827 return null; 828 } 829 return userData; 830 } 831 832 /** 833 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 834 * <p>No permissions checking or any addition checks are made</p> 835 */ 836 private UserInfo getUserInfoNoChecks(int userId) { 837 synchronized (mUsersLock) { 838 final UserData userData = mUsers.get(userId); 839 return userData != null ? userData.info : null; 840 } 841 } 842 843 /** 844 * Obtains {@link #mUsersLock} and return UserData from mUsers. 845 * <p>No permissions checking or any addition checks are made</p> 846 */ 847 private UserData getUserDataNoChecks(int userId) { 848 synchronized (mUsersLock) { 849 return mUsers.get(userId); 850 } 851 } 852 853 /** Called by PackageManagerService */ 854 public boolean exists(int userId) { 855 return getUserInfoNoChecks(userId) != null; 856 } 857 858 @Override 859 public void setUserName(int userId, String name) { 860 checkManageUsersPermission("rename users"); 861 boolean changed = false; 862 synchronized (mPackagesLock) { 863 UserData userData = getUserDataNoChecks(userId); 864 if (userData == null || userData.info.partial) { 865 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 866 return; 867 } 868 if (name != null && !name.equals(userData.info.name)) { 869 userData.info.name = name; 870 writeUserLP(userData); 871 changed = true; 872 } 873 } 874 if (changed) { 875 sendUserInfoChangedBroadcast(userId); 876 } 877 } 878 879 @Override 880 public void setUserIcon(int userId, Bitmap bitmap) { 881 checkManageUsersPermission("update users"); 882 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 883 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 884 return; 885 } 886 mLocalService.setUserIcon(userId, bitmap); 887 } 888 889 890 891 private void sendUserInfoChangedBroadcast(int userId) { 892 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 893 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 894 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 895 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 896 } 897 898 @Override 899 public ParcelFileDescriptor getUserIcon(int targetUserId) { 900 String iconPath; 901 synchronized (mPackagesLock) { 902 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 903 if (targetUserInfo == null || targetUserInfo.partial) { 904 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 905 return null; 906 } 907 908 final int callingUserId = UserHandle.getCallingUserId(); 909 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 910 final int targetGroupId = targetUserInfo.profileGroupId; 911 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 912 && callingGroupId == targetGroupId); 913 if ((callingUserId != targetUserId) && !sameGroup) { 914 checkManageUsersPermission("get the icon of a user who is not related"); 915 } 916 917 if (targetUserInfo.iconPath == null) { 918 return null; 919 } 920 iconPath = targetUserInfo.iconPath; 921 } 922 923 try { 924 return ParcelFileDescriptor.open( 925 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 926 } catch (FileNotFoundException e) { 927 Log.e(LOG_TAG, "Couldn't find icon file", e); 928 } 929 return null; 930 } 931 932 public void makeInitialized(int userId) { 933 checkManageUsersPermission("makeInitialized"); 934 boolean scheduleWriteUser = false; 935 UserData userData; 936 synchronized (mUsersLock) { 937 userData = mUsers.get(userId); 938 if (userData == null || userData.info.partial) { 939 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 940 return; 941 } 942 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 943 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 944 scheduleWriteUser = true; 945 } 946 } 947 if (scheduleWriteUser) { 948 scheduleWriteUser(userData); 949 } 950 } 951 952 /** 953 * If default guest restrictions haven't been initialized yet, add the basic 954 * restrictions. 955 */ 956 private void initDefaultGuestRestrictions() { 957 synchronized (mGuestRestrictions) { 958 if (mGuestRestrictions.isEmpty()) { 959 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 960 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 961 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 962 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 963 } 964 } 965 } 966 967 @Override 968 public Bundle getDefaultGuestRestrictions() { 969 checkManageUsersPermission("getDefaultGuestRestrictions"); 970 synchronized (mGuestRestrictions) { 971 return new Bundle(mGuestRestrictions); 972 } 973 } 974 975 @Override 976 public void setDefaultGuestRestrictions(Bundle restrictions) { 977 checkManageUsersPermission("setDefaultGuestRestrictions"); 978 synchronized (mGuestRestrictions) { 979 mGuestRestrictions.clear(); 980 mGuestRestrictions.putAll(restrictions); 981 } 982 synchronized (mPackagesLock) { 983 writeUserListLP(); 984 } 985 } 986 987 /** 988 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions(int, Bundle, Bundle)} 989 */ 990 void setDevicePolicyUserRestrictionsInner(int userId, @NonNull Bundle local, 991 @Nullable Bundle global) { 992 Preconditions.checkNotNull(local); 993 boolean globalChanged = false; 994 boolean localChanged; 995 synchronized (mRestrictionsLock) { 996 if (global != null) { 997 // Update global. 998 globalChanged = !UserRestrictionsUtils.areEqual( 999 mDevicePolicyGlobalUserRestrictions, global); 1000 if (globalChanged) { 1001 mDevicePolicyGlobalUserRestrictions = global; 1002 } 1003 } 1004 { 1005 // Update local. 1006 final Bundle prev = mDevicePolicyLocalUserRestrictions.get(userId); 1007 localChanged = !UserRestrictionsUtils.areEqual(prev, local); 1008 if (localChanged) { 1009 mDevicePolicyLocalUserRestrictions.put(userId, local); 1010 } 1011 } 1012 } 1013 if (DBG) { 1014 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1015 + " global=" + global + (globalChanged ? " (changed)" : "") 1016 + " local=" + local + (localChanged ? " (changed)" : "") 1017 ); 1018 } 1019 // Don't call them within the mRestrictionsLock. 1020 synchronized (mPackagesLock) { 1021 if (localChanged) { 1022 writeUserLP(getUserDataNoChecks(userId)); 1023 } 1024 if (globalChanged) { 1025 writeUserListLP(); 1026 } 1027 } 1028 1029 synchronized (mRestrictionsLock) { 1030 if (globalChanged) { 1031 applyUserRestrictionsForAllUsersLR(); 1032 } else if (localChanged) { 1033 applyUserRestrictionsLR(userId); 1034 } 1035 } 1036 } 1037 1038 @GuardedBy("mRestrictionsLock") 1039 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1040 final Bundle baseRestrictions = 1041 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1042 final Bundle global = mDevicePolicyGlobalUserRestrictions; 1043 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1044 1045 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1046 // Common case first. 1047 return baseRestrictions; 1048 } 1049 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1050 UserRestrictionsUtils.merge(effective, global); 1051 UserRestrictionsUtils.merge(effective, local); 1052 1053 return effective; 1054 } 1055 1056 @GuardedBy("mRestrictionsLock") 1057 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1058 if (DBG) { 1059 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1060 } 1061 mCachedEffectiveUserRestrictions.remove(userId); 1062 } 1063 1064 private Bundle getEffectiveUserRestrictions(int userId) { 1065 synchronized (mRestrictionsLock) { 1066 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1067 if (restrictions == null) { 1068 restrictions = computeEffectiveUserRestrictionsLR(userId); 1069 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1070 } 1071 return restrictions; 1072 } 1073 } 1074 1075 /** @return a specific user restriction that's in effect currently. */ 1076 @Override 1077 public boolean hasUserRestriction(String restrictionKey, int userId) { 1078 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1079 return false; 1080 } 1081 Bundle restrictions = getEffectiveUserRestrictions(userId); 1082 return restrictions != null && restrictions.getBoolean(restrictionKey); 1083 } 1084 1085 /** 1086 * @return UserRestrictions that are in effect currently. This always returns a new 1087 * {@link Bundle}. 1088 */ 1089 @Override 1090 public Bundle getUserRestrictions(int userId) { 1091 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1092 } 1093 1094 @Override 1095 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1096 checkManageUsersPermission("hasBaseUserRestriction"); 1097 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1098 return false; 1099 } 1100 synchronized (mRestrictionsLock) { 1101 Bundle bundle = mBaseUserRestrictions.get(userId); 1102 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1103 } 1104 } 1105 1106 @Override 1107 public void setUserRestriction(String key, boolean value, int userId) { 1108 checkManageUsersPermission("setUserRestriction"); 1109 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1110 return; 1111 } 1112 synchronized (mRestrictionsLock) { 1113 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1114 // a copy. 1115 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1116 mBaseUserRestrictions.get(userId)); 1117 newRestrictions.putBoolean(key, value); 1118 1119 updateUserRestrictionsInternalLR(newRestrictions, userId); 1120 } 1121 } 1122 1123 /** 1124 * Optionally updating user restrictions, calculate the effective user restrictions and also 1125 * propagate to other services and system settings. 1126 * 1127 * @param newRestrictions User restrictions to set. 1128 * If null, will not update user restrictions and only does the propagation. 1129 * @param userId target user ID. 1130 */ 1131 @GuardedBy("mRestrictionsLock") 1132 private void updateUserRestrictionsInternalLR( 1133 @Nullable Bundle newRestrictions, int userId) { 1134 1135 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1136 mAppliedUserRestrictions.get(userId)); 1137 1138 // Update base restrictions. 1139 if (newRestrictions != null) { 1140 // If newRestrictions == the current one, it's probably a bug. 1141 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1142 1143 Preconditions.checkState(prevBaseRestrictions != newRestrictions); 1144 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1145 != newRestrictions); 1146 1147 if (!UserRestrictionsUtils.areEqual(prevBaseRestrictions, newRestrictions)) { 1148 mBaseUserRestrictions.put(userId, newRestrictions); 1149 scheduleWriteUser(getUserDataNoChecks(userId)); 1150 } 1151 } 1152 1153 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1154 1155 mCachedEffectiveUserRestrictions.put(userId, effective); 1156 1157 // Apply the new restrictions. 1158 if (DBG) { 1159 debug("Applying user restrictions: userId=" + userId 1160 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1161 } 1162 1163 if (mAppOpsService != null) { // We skip it until system-ready. 1164 final long token = Binder.clearCallingIdentity(); 1165 try { 1166 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1167 } catch (RemoteException e) { 1168 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1169 } finally { 1170 Binder.restoreCallingIdentity(token); 1171 } 1172 } 1173 1174 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1175 1176 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1177 } 1178 1179 private void propagateUserRestrictionsLR(final int userId, 1180 Bundle newRestrictions, Bundle prevRestrictions) { 1181 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1182 // actually, but we still need some kind of synchronization otherwise we might end up 1183 // calling listeners out-of-order, thus "LR". 1184 1185 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1186 return; 1187 } 1188 1189 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1190 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1191 1192 mHandler.post(new Runnable() { 1193 @Override 1194 public void run() { 1195 UserRestrictionsUtils.applyUserRestrictions( 1196 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1197 1198 final UserRestrictionsListener[] listeners; 1199 synchronized (mUserRestrictionsListeners) { 1200 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1201 mUserRestrictionsListeners.toArray(listeners); 1202 } 1203 for (int i = 0; i < listeners.length; i++) { 1204 listeners[i].onUserRestrictionsChanged(userId, 1205 newRestrictionsFinal, prevRestrictionsFinal); 1206 } 1207 } 1208 }); 1209 } 1210 1211 // Package private for the inner class. 1212 void applyUserRestrictionsLR(int userId) { 1213 updateUserRestrictionsInternalLR(null, userId); 1214 } 1215 1216 @GuardedBy("mRestrictionsLock") 1217 // Package private for the inner class. 1218 void applyUserRestrictionsForAllUsersLR() { 1219 if (DBG) { 1220 debug("applyUserRestrictionsForAllUsersLR"); 1221 } 1222 // First, invalidate all cached values. 1223 mCachedEffectiveUserRestrictions.clear(); 1224 1225 // We don't want to call into ActivityManagerNative while taking a lock, so we'll call 1226 // it on a handler. 1227 final Runnable r = new Runnable() { 1228 @Override 1229 public void run() { 1230 // Then get the list of running users. 1231 final int[] runningUsers; 1232 try { 1233 runningUsers = ActivityManagerNative.getDefault().getRunningUserIds(); 1234 } catch (RemoteException e) { 1235 Log.w(LOG_TAG, "Unable to access ActivityManagerNative"); 1236 return; 1237 } 1238 // Then re-calculate the effective restrictions and apply, only for running users. 1239 // It's okay if a new user has started after the getRunningUserIds() call, 1240 // because we'll do the same thing (re-calculate the restrictions and apply) 1241 // when we start a user. 1242 synchronized (mRestrictionsLock) { 1243 for (int i = 0; i < runningUsers.length; i++) { 1244 applyUserRestrictionsLR(runningUsers[i]); 1245 } 1246 } 1247 } 1248 }; 1249 mHandler.post(r); 1250 } 1251 1252 /** 1253 * Check if we've hit the limit of how many users can be created. 1254 */ 1255 private boolean isUserLimitReached() { 1256 int count; 1257 synchronized (mUsersLock) { 1258 count = getAliveUsersExcludingGuestsCountLU(); 1259 } 1260 return count >= UserManager.getMaxSupportedUsers(); 1261 } 1262 1263 @Override 1264 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1265 checkManageUsersPermission("check if more managed profiles can be added."); 1266 if (ActivityManager.isLowRamDeviceStatic()) { 1267 return false; 1268 } 1269 if (!mContext.getPackageManager().hasSystemFeature( 1270 PackageManager.FEATURE_MANAGED_USERS)) { 1271 return false; 1272 } 1273 // Limit number of managed profiles that can be created 1274 final int managedProfilesCount = getProfiles(userId, true).size() - 1; 1275 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1276 if (managedProfilesCount - profilesRemovedCount >= MAX_MANAGED_PROFILES) { 1277 return false; 1278 } 1279 synchronized(mUsersLock) { 1280 UserInfo userInfo = getUserInfoLU(userId); 1281 if (!userInfo.canHaveProfile()) { 1282 return false; 1283 } 1284 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1285 - profilesRemovedCount; 1286 // We allow creating a managed profile in the special case where there is only one user. 1287 return usersCountAfterRemoving == 1 1288 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1289 } 1290 } 1291 1292 private int getAliveUsersExcludingGuestsCountLU() { 1293 int aliveUserCount = 0; 1294 final int totalUserCount = mUsers.size(); 1295 // Skip over users being removed 1296 for (int i = 0; i < totalUserCount; i++) { 1297 UserInfo user = mUsers.valueAt(i).info; 1298 if (!mRemovingUserIds.get(user.id) 1299 && !user.isGuest() && !user.partial) { 1300 aliveUserCount++; 1301 } 1302 } 1303 return aliveUserCount; 1304 } 1305 1306 /** 1307 * Enforces that only the system UID or root's UID or apps that have the 1308 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1309 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1310 * permissions can make certain calls to the UserManager. 1311 * 1312 * @param message used as message if SecurityException is thrown 1313 * @throws SecurityException if the caller does not have enough privilege. 1314 */ 1315 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1316 final int uid = Binder.getCallingUid(); 1317 if (uid != Process.SYSTEM_UID && uid != 0 1318 && ActivityManager.checkComponentPermission( 1319 Manifest.permission.MANAGE_USERS, 1320 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1321 && ActivityManager.checkComponentPermission( 1322 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1323 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1324 throw new SecurityException( 1325 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1326 + message); 1327 } 1328 } 1329 1330 /** 1331 * Enforces that only the system UID or root's UID or apps that have the 1332 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1333 * permission can make certain calls to the UserManager. 1334 * 1335 * @param message used as message if SecurityException is thrown 1336 * @throws SecurityException if the caller is not system or root 1337 * @see #hasManageUsersPermission() 1338 */ 1339 private static final void checkManageUsersPermission(String message) { 1340 if (!hasManageUsersPermission()) { 1341 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1342 } 1343 } 1344 1345 /** 1346 * @return whether the calling UID is system UID or root's UID or the calling app has the 1347 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1348 */ 1349 private static final boolean hasManageUsersPermission() { 1350 final int callingUid = Binder.getCallingUid(); 1351 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1352 || callingUid == Process.ROOT_UID 1353 || ActivityManager.checkComponentPermission( 1354 android.Manifest.permission.MANAGE_USERS, 1355 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1356 } 1357 1358 /** 1359 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1360 * UserManager. 1361 * 1362 * @param message used as message if SecurityException is thrown 1363 * @throws SecurityException if the caller is not system or root 1364 */ 1365 private static void checkSystemOrRoot(String message) { 1366 final int uid = Binder.getCallingUid(); 1367 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1368 throw new SecurityException("Only system may: " + message); 1369 } 1370 } 1371 1372 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1373 try { 1374 File dir = new File(mUsersDir, Integer.toString(info.id)); 1375 File file = new File(dir, USER_PHOTO_FILENAME); 1376 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1377 if (!dir.exists()) { 1378 dir.mkdir(); 1379 FileUtils.setPermissions( 1380 dir.getPath(), 1381 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1382 -1, -1); 1383 } 1384 FileOutputStream os; 1385 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1386 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1387 info.iconPath = file.getAbsolutePath(); 1388 } 1389 try { 1390 os.close(); 1391 } catch (IOException ioe) { 1392 // What the ... ! 1393 } 1394 tmp.delete(); 1395 } catch (FileNotFoundException e) { 1396 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1397 } 1398 } 1399 1400 /** 1401 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1402 * cache it elsewhere. 1403 * @return the array of user ids. 1404 */ 1405 public int[] getUserIds() { 1406 synchronized (mUsersLock) { 1407 return mUserIds; 1408 } 1409 } 1410 1411 private void readUserListLP() { 1412 if (!mUserListFile.exists()) { 1413 fallbackToSingleUserLP(); 1414 return; 1415 } 1416 FileInputStream fis = null; 1417 AtomicFile userListFile = new AtomicFile(mUserListFile); 1418 try { 1419 fis = userListFile.openRead(); 1420 XmlPullParser parser = Xml.newPullParser(); 1421 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1422 int type; 1423 while ((type = parser.next()) != XmlPullParser.START_TAG 1424 && type != XmlPullParser.END_DOCUMENT) { 1425 // Skip 1426 } 1427 1428 if (type != XmlPullParser.START_TAG) { 1429 Slog.e(LOG_TAG, "Unable to read user list"); 1430 fallbackToSingleUserLP(); 1431 return; 1432 } 1433 1434 mNextSerialNumber = -1; 1435 if (parser.getName().equals(TAG_USERS)) { 1436 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1437 if (lastSerialNumber != null) { 1438 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1439 } 1440 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1441 if (versionNumber != null) { 1442 mUserVersion = Integer.parseInt(versionNumber); 1443 } 1444 } 1445 1446 final Bundle newDevicePolicyGlobalUserRestrictions = new Bundle(); 1447 1448 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1449 if (type == XmlPullParser.START_TAG) { 1450 final String name = parser.getName(); 1451 if (name.equals(TAG_USER)) { 1452 String id = parser.getAttributeValue(null, ATTR_ID); 1453 1454 UserData userData = readUserLP(Integer.parseInt(id)); 1455 1456 if (userData != null) { 1457 synchronized (mUsersLock) { 1458 mUsers.put(userData.info.id, userData); 1459 if (mNextSerialNumber < 0 1460 || mNextSerialNumber <= userData.info.id) { 1461 mNextSerialNumber = userData.info.id + 1; 1462 } 1463 } 1464 } 1465 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1466 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1467 && type != XmlPullParser.END_TAG) { 1468 if (type == XmlPullParser.START_TAG) { 1469 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1470 synchronized (mGuestRestrictions) { 1471 UserRestrictionsUtils 1472 .readRestrictions(parser, mGuestRestrictions); 1473 } 1474 } else if (parser.getName().equals(TAG_DEVICE_POLICY_RESTRICTIONS) 1475 ) { 1476 UserRestrictionsUtils.readRestrictions(parser, 1477 newDevicePolicyGlobalUserRestrictions); 1478 } 1479 break; 1480 } 1481 } 1482 } 1483 } 1484 } 1485 synchronized (mRestrictionsLock) { 1486 mDevicePolicyGlobalUserRestrictions = newDevicePolicyGlobalUserRestrictions; 1487 } 1488 updateUserIds(); 1489 upgradeIfNecessaryLP(); 1490 } catch (IOException | XmlPullParserException e) { 1491 fallbackToSingleUserLP(); 1492 } finally { 1493 IoUtils.closeQuietly(fis); 1494 } 1495 } 1496 1497 /** 1498 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1499 */ 1500 private void upgradeIfNecessaryLP() { 1501 final int originalVersion = mUserVersion; 1502 int userVersion = mUserVersion; 1503 if (userVersion < 1) { 1504 // Assign a proper name for the owner, if not initialized correctly before 1505 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1506 if ("Primary".equals(userData.info.name)) { 1507 userData.info.name = 1508 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1509 scheduleWriteUser(userData); 1510 } 1511 userVersion = 1; 1512 } 1513 1514 if (userVersion < 2) { 1515 // Owner should be marked as initialized 1516 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1517 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1518 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1519 scheduleWriteUser(userData); 1520 } 1521 userVersion = 2; 1522 } 1523 1524 1525 if (userVersion < 4) { 1526 userVersion = 4; 1527 } 1528 1529 if (userVersion < 5) { 1530 initDefaultGuestRestrictions(); 1531 userVersion = 5; 1532 } 1533 1534 if (userVersion < 6) { 1535 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1536 synchronized (mUsersLock) { 1537 for (int i = 0; i < mUsers.size(); i++) { 1538 UserData userData = mUsers.valueAt(i); 1539 // In non-split mode, only user 0 can have restricted profiles 1540 if (!splitSystemUser && userData.info.isRestricted() 1541 && (userData.info.restrictedProfileParentId 1542 == UserInfo.NO_PROFILE_GROUP_ID)) { 1543 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1544 scheduleWriteUser(userData); 1545 } 1546 } 1547 } 1548 userVersion = 6; 1549 } 1550 1551 if (userVersion < USER_VERSION) { 1552 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1553 + USER_VERSION); 1554 } else { 1555 mUserVersion = userVersion; 1556 1557 if (originalVersion < mUserVersion) { 1558 writeUserListLP(); 1559 } 1560 } 1561 } 1562 1563 private void fallbackToSingleUserLP() { 1564 int flags = UserInfo.FLAG_INITIALIZED; 1565 // In split system user mode, the admin and primary flags are assigned to the first human 1566 // user. 1567 if (!UserManager.isSplitSystemUser()) { 1568 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1569 } 1570 // Create the system user 1571 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 1572 UserData userData = new UserData(); 1573 userData.info = system; 1574 synchronized (mUsersLock) { 1575 mUsers.put(system.id, userData); 1576 } 1577 mNextSerialNumber = MIN_USER_ID; 1578 mUserVersion = USER_VERSION; 1579 1580 Bundle restrictions = new Bundle(); 1581 synchronized (mRestrictionsLock) { 1582 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1583 } 1584 1585 updateUserIds(); 1586 initDefaultGuestRestrictions(); 1587 1588 writeUserLP(userData); 1589 writeUserListLP(); 1590 } 1591 1592 private String getOwnerName() { 1593 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 1594 } 1595 1596 private void scheduleWriteUser(UserData UserData) { 1597 if (DBG) { 1598 debug("scheduleWriteUser"); 1599 } 1600 // No need to wrap it within a lock -- worst case, we'll just post the same message 1601 // twice. 1602 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 1603 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 1604 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1605 } 1606 } 1607 1608 /* 1609 * Writes the user file in this format: 1610 * 1611 * <user flags="20039023" id="0"> 1612 * <name>Primary</name> 1613 * </user> 1614 */ 1615 private void writeUserLP(UserData userData) { 1616 if (DBG) { 1617 debug("writeUserLP " + userData); 1618 } 1619 FileOutputStream fos = null; 1620 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 1621 try { 1622 fos = userFile.startWrite(); 1623 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1624 1625 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1626 final XmlSerializer serializer = new FastXmlSerializer(); 1627 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1628 serializer.startDocument(null, true); 1629 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1630 1631 final UserInfo userInfo = userData.info; 1632 serializer.startTag(null, TAG_USER); 1633 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 1634 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 1635 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 1636 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 1637 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 1638 Long.toString(userInfo.lastLoggedInTime)); 1639 if (userInfo.lastLoggedInFingerprint != null) { 1640 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 1641 userInfo.lastLoggedInFingerprint); 1642 } 1643 if (userInfo.iconPath != null) { 1644 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 1645 } 1646 if (userInfo.partial) { 1647 serializer.attribute(null, ATTR_PARTIAL, "true"); 1648 } 1649 if (userInfo.guestToRemove) { 1650 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 1651 } 1652 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 1653 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 1654 Integer.toString(userInfo.profileGroupId)); 1655 } 1656 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 1657 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 1658 Integer.toString(userInfo.restrictedProfileParentId)); 1659 } 1660 // Write seed data 1661 if (userData.persistSeedData) { 1662 if (userData.seedAccountName != null) { 1663 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 1664 } 1665 if (userData.seedAccountType != null) { 1666 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 1667 } 1668 } 1669 if (userInfo.name != null) { 1670 serializer.startTag(null, TAG_NAME); 1671 serializer.text(userInfo.name); 1672 serializer.endTag(null, TAG_NAME); 1673 } 1674 synchronized (mRestrictionsLock) { 1675 UserRestrictionsUtils.writeRestrictions(serializer, 1676 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 1677 UserRestrictionsUtils.writeRestrictions(serializer, 1678 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 1679 TAG_DEVICE_POLICY_RESTRICTIONS); 1680 } 1681 1682 if (userData.account != null) { 1683 serializer.startTag(null, TAG_ACCOUNT); 1684 serializer.text(userData.account); 1685 serializer.endTag(null, TAG_ACCOUNT); 1686 } 1687 1688 if (userData.persistSeedData && userData.seedAccountOptions != null) { 1689 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1690 userData.seedAccountOptions.saveToXml(serializer); 1691 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1692 } 1693 serializer.endTag(null, TAG_USER); 1694 1695 serializer.endDocument(); 1696 userFile.finishWrite(fos); 1697 } catch (Exception ioe) { 1698 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 1699 userFile.failWrite(fos); 1700 } 1701 } 1702 1703 /* 1704 * Writes the user list file in this format: 1705 * 1706 * <users nextSerialNumber="3"> 1707 * <user id="0"></user> 1708 * <user id="2"></user> 1709 * </users> 1710 */ 1711 private void writeUserListLP() { 1712 if (DBG) { 1713 debug("writeUserList"); 1714 } 1715 FileOutputStream fos = null; 1716 AtomicFile userListFile = new AtomicFile(mUserListFile); 1717 try { 1718 fos = userListFile.startWrite(); 1719 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1720 1721 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1722 final XmlSerializer serializer = new FastXmlSerializer(); 1723 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1724 serializer.startDocument(null, true); 1725 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1726 1727 serializer.startTag(null, TAG_USERS); 1728 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 1729 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 1730 1731 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 1732 synchronized (mGuestRestrictions) { 1733 UserRestrictionsUtils 1734 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 1735 } 1736 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 1737 synchronized (mRestrictionsLock) { 1738 UserRestrictionsUtils.writeRestrictions(serializer, 1739 mDevicePolicyGlobalUserRestrictions, TAG_DEVICE_POLICY_RESTRICTIONS); 1740 } 1741 int[] userIdsToWrite; 1742 synchronized (mUsersLock) { 1743 userIdsToWrite = new int[mUsers.size()]; 1744 for (int i = 0; i < userIdsToWrite.length; i++) { 1745 UserInfo user = mUsers.valueAt(i).info; 1746 userIdsToWrite[i] = user.id; 1747 } 1748 } 1749 for (int id : userIdsToWrite) { 1750 serializer.startTag(null, TAG_USER); 1751 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 1752 serializer.endTag(null, TAG_USER); 1753 } 1754 1755 serializer.endTag(null, TAG_USERS); 1756 1757 serializer.endDocument(); 1758 userListFile.finishWrite(fos); 1759 } catch (Exception e) { 1760 userListFile.failWrite(fos); 1761 Slog.e(LOG_TAG, "Error writing user list"); 1762 } 1763 } 1764 1765 private UserData readUserLP(int id) { 1766 int flags = 0; 1767 int serialNumber = id; 1768 String name = null; 1769 String account = null; 1770 String iconPath = null; 1771 long creationTime = 0L; 1772 long lastLoggedInTime = 0L; 1773 String lastLoggedInFingerprint = null; 1774 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 1775 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 1776 boolean partial = false; 1777 boolean guestToRemove = false; 1778 boolean persistSeedData = false; 1779 String seedAccountName = null; 1780 String seedAccountType = null; 1781 PersistableBundle seedAccountOptions = null; 1782 Bundle baseRestrictions = new Bundle(); 1783 Bundle localRestrictions = new Bundle(); 1784 1785 FileInputStream fis = null; 1786 try { 1787 AtomicFile userFile = 1788 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 1789 fis = userFile.openRead(); 1790 XmlPullParser parser = Xml.newPullParser(); 1791 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1792 int type; 1793 while ((type = parser.next()) != XmlPullParser.START_TAG 1794 && type != XmlPullParser.END_DOCUMENT) { 1795 // Skip 1796 } 1797 1798 if (type != XmlPullParser.START_TAG) { 1799 Slog.e(LOG_TAG, "Unable to read user " + id); 1800 return null; 1801 } 1802 1803 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 1804 int storedId = readIntAttribute(parser, ATTR_ID, -1); 1805 if (storedId != id) { 1806 Slog.e(LOG_TAG, "User id does not match the file name"); 1807 return null; 1808 } 1809 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 1810 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 1811 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 1812 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 1813 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 1814 lastLoggedInFingerprint = parser.getAttributeValue(null, 1815 ATTR_LAST_LOGGED_IN_FINGERPRINT); 1816 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 1817 UserInfo.NO_PROFILE_GROUP_ID); 1818 restrictedProfileParentId = readIntAttribute(parser, 1819 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 1820 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 1821 if ("true".equals(valueString)) { 1822 partial = true; 1823 } 1824 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 1825 if ("true".equals(valueString)) { 1826 guestToRemove = true; 1827 } 1828 1829 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 1830 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 1831 if (seedAccountName != null || seedAccountType != null) { 1832 persistSeedData = true; 1833 } 1834 1835 int outerDepth = parser.getDepth(); 1836 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1837 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1838 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1839 continue; 1840 } 1841 String tag = parser.getName(); 1842 if (TAG_NAME.equals(tag)) { 1843 type = parser.next(); 1844 if (type == XmlPullParser.TEXT) { 1845 name = parser.getText(); 1846 } 1847 } else if (TAG_RESTRICTIONS.equals(tag)) { 1848 UserRestrictionsUtils.readRestrictions(parser, baseRestrictions); 1849 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 1850 UserRestrictionsUtils.readRestrictions(parser, localRestrictions); 1851 } else if (TAG_ACCOUNT.equals(tag)) { 1852 type = parser.next(); 1853 if (type == XmlPullParser.TEXT) { 1854 account = parser.getText(); 1855 } 1856 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 1857 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 1858 persistSeedData = true; 1859 } 1860 } 1861 } 1862 1863 // Create the UserInfo object that gets passed around 1864 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 1865 userInfo.serialNumber = serialNumber; 1866 userInfo.creationTime = creationTime; 1867 userInfo.lastLoggedInTime = lastLoggedInTime; 1868 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 1869 userInfo.partial = partial; 1870 userInfo.guestToRemove = guestToRemove; 1871 userInfo.profileGroupId = profileGroupId; 1872 userInfo.restrictedProfileParentId = restrictedProfileParentId; 1873 1874 // Create the UserData object that's internal to this class 1875 UserData userData = new UserData(); 1876 userData.info = userInfo; 1877 userData.account = account; 1878 userData.seedAccountName = seedAccountName; 1879 userData.seedAccountType = seedAccountType; 1880 userData.persistSeedData = persistSeedData; 1881 userData.seedAccountOptions = seedAccountOptions; 1882 1883 synchronized (mRestrictionsLock) { 1884 mBaseUserRestrictions.put(id, baseRestrictions); 1885 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 1886 } 1887 return userData; 1888 } catch (IOException ioe) { 1889 } catch (XmlPullParserException pe) { 1890 } finally { 1891 if (fis != null) { 1892 try { 1893 fis.close(); 1894 } catch (IOException e) { 1895 } 1896 } 1897 } 1898 return null; 1899 } 1900 1901 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 1902 String valueString = parser.getAttributeValue(null, attr); 1903 if (valueString == null) return defaultValue; 1904 try { 1905 return Integer.parseInt(valueString); 1906 } catch (NumberFormatException nfe) { 1907 return defaultValue; 1908 } 1909 } 1910 1911 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 1912 String valueString = parser.getAttributeValue(null, attr); 1913 if (valueString == null) return defaultValue; 1914 try { 1915 return Long.parseLong(valueString); 1916 } catch (NumberFormatException nfe) { 1917 return defaultValue; 1918 } 1919 } 1920 1921 /** 1922 * Removes the app restrictions file for a specific package and user id, if it exists. 1923 */ 1924 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 1925 synchronized (mPackagesLock) { 1926 File dir = Environment.getUserSystemDirectory(userId); 1927 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 1928 if (resFile.exists()) { 1929 resFile.delete(); 1930 } 1931 } 1932 } 1933 1934 @Override 1935 public UserInfo createProfileForUser(String name, int flags, int userId) { 1936 checkManageUsersPermission("Only the system can create users"); 1937 return createUserInternal(name, flags, userId); 1938 } 1939 1940 @Override 1941 public UserInfo createUser(String name, int flags) { 1942 checkManageUsersPermission("Only the system can create users"); 1943 return createUserInternal(name, flags, UserHandle.USER_NULL); 1944 } 1945 1946 private UserInfo createUserInternal(String name, int flags, int parentId) { 1947 if (hasUserRestriction(UserManager.DISALLOW_ADD_USER, UserHandle.getCallingUserId())) { 1948 Log.w(LOG_TAG, "Cannot add user. DISALLOW_ADD_USER is enabled."); 1949 return null; 1950 } 1951 return createUserInternalUnchecked(name, flags, parentId); 1952 } 1953 1954 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId) { 1955 if (ActivityManager.isLowRamDeviceStatic()) { 1956 return null; 1957 } 1958 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 1959 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 1960 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 1961 final long ident = Binder.clearCallingIdentity(); 1962 UserInfo userInfo; 1963 UserData userData; 1964 final int userId; 1965 try { 1966 synchronized (mPackagesLock) { 1967 UserData parent = null; 1968 if (parentId != UserHandle.USER_NULL) { 1969 synchronized (mUsersLock) { 1970 parent = getUserDataLU(parentId); 1971 } 1972 if (parent == null) return null; 1973 } 1974 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 1975 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 1976 return null; 1977 } 1978 if (!isGuest && !isManagedProfile && isUserLimitReached()) { 1979 // If we're not adding a guest user or a managed profile and the limit has 1980 // been reached, cannot add a user. 1981 return null; 1982 } 1983 // If we're adding a guest and there already exists one, bail. 1984 if (isGuest && findCurrentGuestUser() != null) { 1985 return null; 1986 } 1987 // In legacy mode, restricted profile's parent can only be the owner user 1988 if (isRestricted && !UserManager.isSplitSystemUser() 1989 && (parentId != UserHandle.USER_SYSTEM)) { 1990 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 1991 return null; 1992 } 1993 if (isRestricted && UserManager.isSplitSystemUser()) { 1994 if (parent == null) { 1995 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 1996 + "specified"); 1997 return null; 1998 } 1999 if (!parent.info.canHaveProfile()) { 2000 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 2001 + "created for the specified parent user id " + parentId); 2002 return null; 2003 } 2004 } 2005 if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0) { 2006 Log.e(LOG_TAG, 2007 "Ephemeral users are supported on split-system-user systems only."); 2008 return null; 2009 } 2010 // In split system user mode, we assign the first human user the primary flag. 2011 // And if there is no device owner, we also assign the admin flag to primary user. 2012 if (UserManager.isSplitSystemUser() 2013 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2014 flags |= UserInfo.FLAG_PRIMARY; 2015 synchronized (mUsersLock) { 2016 if (!mIsDeviceManaged) { 2017 flags |= UserInfo.FLAG_ADMIN; 2018 } 2019 } 2020 } 2021 2022 userId = getNextAvailableId(); 2023 Environment.getUserSystemDirectory(userId).mkdirs(); 2024 boolean ephemeralGuests = Resources.getSystem() 2025 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2026 2027 synchronized (mUsersLock) { 2028 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2029 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2030 || (parent != null && parent.info.isEphemeral())) { 2031 flags |= UserInfo.FLAG_EPHEMERAL; 2032 } 2033 2034 userInfo = new UserInfo(userId, name, null, flags); 2035 userInfo.serialNumber = mNextSerialNumber++; 2036 long now = System.currentTimeMillis(); 2037 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2038 userInfo.partial = true; 2039 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2040 userData = new UserData(); 2041 userData.info = userInfo; 2042 mUsers.put(userId, userData); 2043 } 2044 writeUserLP(userData); 2045 writeUserListLP(); 2046 if (parent != null) { 2047 if (isManagedProfile) { 2048 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2049 parent.info.profileGroupId = parent.info.id; 2050 writeUserLP(parent); 2051 } 2052 userInfo.profileGroupId = parent.info.profileGroupId; 2053 } else if (isRestricted) { 2054 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2055 parent.info.restrictedProfileParentId = parent.info.id; 2056 writeUserLP(parent); 2057 } 2058 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2059 } 2060 } 2061 } 2062 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2063 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2064 mPm.prepareUserData(userId, userInfo.serialNumber, 2065 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2066 mPm.createNewUser(userId); 2067 userInfo.partial = false; 2068 synchronized (mPackagesLock) { 2069 writeUserLP(userData); 2070 } 2071 updateUserIds(); 2072 Bundle restrictions = new Bundle(); 2073 if (isGuest) { 2074 synchronized (mGuestRestrictions) { 2075 restrictions.putAll(mGuestRestrictions); 2076 } 2077 } 2078 synchronized (mRestrictionsLock) { 2079 mBaseUserRestrictions.append(userId, restrictions); 2080 } 2081 mPm.newUserCreated(userId); 2082 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2083 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2084 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2085 android.Manifest.permission.MANAGE_USERS); 2086 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED : TRON_USER_CREATED, 1); 2087 } finally { 2088 Binder.restoreCallingIdentity(ident); 2089 } 2090 return userInfo; 2091 } 2092 2093 /** 2094 * @hide 2095 */ 2096 @Override 2097 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2098 checkManageUsersPermission("setupRestrictedProfile"); 2099 final UserInfo user = createProfileForUser(name, UserInfo.FLAG_RESTRICTED, parentUserId); 2100 if (user == null) { 2101 return null; 2102 } 2103 long identity = Binder.clearCallingIdentity(); 2104 try { 2105 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2106 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2107 // the putIntForUser() will fail. 2108 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2109 android.provider.Settings.Secure.LOCATION_MODE, 2110 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2111 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2112 } finally { 2113 Binder.restoreCallingIdentity(identity); 2114 } 2115 return user; 2116 } 2117 2118 /** 2119 * Find the current guest user. If the Guest user is partial, 2120 * then do not include it in the results as it is about to die. 2121 */ 2122 private UserInfo findCurrentGuestUser() { 2123 synchronized (mUsersLock) { 2124 final int size = mUsers.size(); 2125 for (int i = 0; i < size; i++) { 2126 final UserInfo user = mUsers.valueAt(i).info; 2127 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2128 return user; 2129 } 2130 } 2131 } 2132 return null; 2133 } 2134 2135 /** 2136 * Mark this guest user for deletion to allow us to create another guest 2137 * and switch to that user before actually removing this guest. 2138 * @param userHandle the userid of the current guest 2139 * @return whether the user could be marked for deletion 2140 */ 2141 @Override 2142 public boolean markGuestForDeletion(int userHandle) { 2143 checkManageUsersPermission("Only the system can remove users"); 2144 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2145 UserManager.DISALLOW_REMOVE_USER, false)) { 2146 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2147 return false; 2148 } 2149 2150 long ident = Binder.clearCallingIdentity(); 2151 try { 2152 final UserData userData; 2153 synchronized (mPackagesLock) { 2154 synchronized (mUsersLock) { 2155 userData = mUsers.get(userHandle); 2156 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2157 return false; 2158 } 2159 } 2160 if (!userData.info.isGuest()) { 2161 return false; 2162 } 2163 // We set this to a guest user that is to be removed. This is a temporary state 2164 // where we are allowed to add new Guest users, even if this one is still not 2165 // removed. This user will still show up in getUserInfo() calls. 2166 // If we don't get around to removing this Guest user, it will be purged on next 2167 // startup. 2168 userData.info.guestToRemove = true; 2169 // Mark it as disabled, so that it isn't returned any more when 2170 // profiles are queried. 2171 userData.info.flags |= UserInfo.FLAG_DISABLED; 2172 writeUserLP(userData); 2173 } 2174 } finally { 2175 Binder.restoreCallingIdentity(ident); 2176 } 2177 return true; 2178 } 2179 2180 /** 2181 * Removes a user and all data directories created for that user. This method should be called 2182 * after the user's processes have been terminated. 2183 * @param userHandle the user's id 2184 */ 2185 @Override 2186 public boolean removeUser(int userHandle) { 2187 checkManageUsersPermission("Only the system can remove users"); 2188 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2189 UserManager.DISALLOW_REMOVE_USER, false)) { 2190 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2191 return false; 2192 } 2193 2194 long ident = Binder.clearCallingIdentity(); 2195 try { 2196 final UserData userData; 2197 int currentUser = ActivityManager.getCurrentUser(); 2198 if (currentUser == userHandle) { 2199 Log.w(LOG_TAG, "Current user cannot be removed"); 2200 return false; 2201 } 2202 synchronized (mPackagesLock) { 2203 synchronized (mUsersLock) { 2204 userData = mUsers.get(userHandle); 2205 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2206 return false; 2207 } 2208 2209 // We remember deleted user IDs to prevent them from being 2210 // reused during the current boot; they can still be reused 2211 // after a reboot. 2212 mRemovingUserIds.put(userHandle, true); 2213 } 2214 2215 try { 2216 mAppOpsService.removeUser(userHandle); 2217 } catch (RemoteException e) { 2218 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2219 } 2220 // Set this to a partially created user, so that the user will be purged 2221 // on next startup, in case the runtime stops now before stopping and 2222 // removing the user completely. 2223 userData.info.partial = true; 2224 // Mark it as disabled, so that it isn't returned any more when 2225 // profiles are queried. 2226 userData.info.flags |= UserInfo.FLAG_DISABLED; 2227 writeUserLP(userData); 2228 } 2229 2230 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2231 && userData.info.isManagedProfile()) { 2232 // Send broadcast to notify system that the user removed was a 2233 // managed user. 2234 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2235 } 2236 2237 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2238 int res; 2239 try { 2240 res = ActivityManagerNative.getDefault().stopUser(userHandle, /* force= */ true, 2241 new IStopUserCallback.Stub() { 2242 @Override 2243 public void userStopped(int userId) { 2244 finishRemoveUser(userId); 2245 } 2246 @Override 2247 public void userStopAborted(int userId) { 2248 } 2249 }); 2250 } catch (RemoteException e) { 2251 return false; 2252 } 2253 return res == ActivityManager.USER_OP_SUCCESS; 2254 } finally { 2255 Binder.restoreCallingIdentity(ident); 2256 } 2257 } 2258 2259 void finishRemoveUser(final int userHandle) { 2260 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2261 // Let other services shutdown any activity and clean up their state before completely 2262 // wiping the user's system directory and removing from the user list 2263 long ident = Binder.clearCallingIdentity(); 2264 try { 2265 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2266 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2267 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2268 android.Manifest.permission.MANAGE_USERS, 2269 2270 new BroadcastReceiver() { 2271 @Override 2272 public void onReceive(Context context, Intent intent) { 2273 if (DBG) { 2274 Slog.i(LOG_TAG, 2275 "USER_REMOVED broadcast sent, cleaning up user data " 2276 + userHandle); 2277 } 2278 new Thread() { 2279 @Override 2280 public void run() { 2281 // Clean up any ActivityManager state 2282 LocalServices.getService(ActivityManagerInternal.class) 2283 .onUserRemoved(userHandle); 2284 removeUserState(userHandle); 2285 } 2286 }.start(); 2287 } 2288 }, 2289 2290 null, Activity.RESULT_OK, null, null); 2291 } finally { 2292 Binder.restoreCallingIdentity(ident); 2293 } 2294 } 2295 2296 private void removeUserState(final int userHandle) { 2297 try { 2298 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2299 } catch (IllegalStateException e) { 2300 // This may be simply because the user was partially created. 2301 Slog.i(LOG_TAG, 2302 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2303 } 2304 2305 // Cleanup package manager settings 2306 mPm.cleanUpUser(this, userHandle); 2307 // Remove this user from the list 2308 synchronized (mUsersLock) { 2309 mUsers.remove(userHandle); 2310 mIsUserManaged.delete(userHandle); 2311 } 2312 synchronized (mRestrictionsLock) { 2313 mBaseUserRestrictions.remove(userHandle); 2314 mAppliedUserRestrictions.remove(userHandle); 2315 mCachedEffectiveUserRestrictions.remove(userHandle); 2316 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2317 } 2318 // Update the user list 2319 synchronized (mPackagesLock) { 2320 writeUserListLP(); 2321 } 2322 // Remove user file 2323 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2324 userFile.delete(); 2325 updateUserIds(); 2326 2327 // Now that we've purged all the metadata above, destroy the actual data 2328 // on disk; if we battery pull in here we'll finish cleaning up when 2329 // reconciling after reboot. 2330 mPm.destroyUserData(userHandle, 2331 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2332 } 2333 2334 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2335 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2336 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2337 Intent.FLAG_RECEIVER_FOREGROUND); 2338 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2339 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2340 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2341 } 2342 2343 @Override 2344 public Bundle getApplicationRestrictions(String packageName) { 2345 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2346 } 2347 2348 @Override 2349 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2350 if (UserHandle.getCallingUserId() != userId 2351 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2352 checkSystemOrRoot("get application restrictions for other users/apps"); 2353 } 2354 synchronized (mPackagesLock) { 2355 // Read the restrictions from XML 2356 return readApplicationRestrictionsLP(packageName, userId); 2357 } 2358 } 2359 2360 @Override 2361 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2362 int userId) { 2363 checkSystemOrRoot("set application restrictions"); 2364 synchronized (mPackagesLock) { 2365 if (restrictions == null || restrictions.isEmpty()) { 2366 cleanAppRestrictionsForPackage(packageName, userId); 2367 } else { 2368 restrictions.setDefusable(true); 2369 // Write the restrictions to XML 2370 writeApplicationRestrictionsLP(packageName, restrictions, userId); 2371 } 2372 } 2373 2374 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2375 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2376 changeIntent.setPackage(packageName); 2377 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2378 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2379 } 2380 2381 private int getUidForPackage(String packageName) { 2382 long ident = Binder.clearCallingIdentity(); 2383 try { 2384 return mContext.getPackageManager().getApplicationInfo(packageName, 2385 PackageManager.MATCH_UNINSTALLED_PACKAGES).uid; 2386 } catch (NameNotFoundException nnfe) { 2387 return -1; 2388 } finally { 2389 Binder.restoreCallingIdentity(ident); 2390 } 2391 } 2392 2393 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 2394 AtomicFile restrictionsFile = 2395 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2396 packageToRestrictionsFileName(packageName))); 2397 return readApplicationRestrictionsLP(restrictionsFile); 2398 } 2399 2400 @VisibleForTesting 2401 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 2402 final Bundle restrictions = new Bundle(); 2403 final ArrayList<String> values = new ArrayList<>(); 2404 if (!restrictionsFile.getBaseFile().exists()) { 2405 return restrictions; 2406 } 2407 2408 FileInputStream fis = null; 2409 try { 2410 fis = restrictionsFile.openRead(); 2411 XmlPullParser parser = Xml.newPullParser(); 2412 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2413 XmlUtils.nextElement(parser); 2414 if (parser.getEventType() != XmlPullParser.START_TAG) { 2415 Slog.e(LOG_TAG, "Unable to read restrictions file " 2416 + restrictionsFile.getBaseFile()); 2417 return restrictions; 2418 } 2419 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2420 readEntry(restrictions, values, parser); 2421 } 2422 } catch (IOException|XmlPullParserException e) { 2423 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2424 } finally { 2425 IoUtils.closeQuietly(fis); 2426 } 2427 return restrictions; 2428 } 2429 2430 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2431 XmlPullParser parser) throws XmlPullParserException, IOException { 2432 int type = parser.getEventType(); 2433 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2434 String key = parser.getAttributeValue(null, ATTR_KEY); 2435 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2436 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2437 if (multiple != null) { 2438 values.clear(); 2439 int count = Integer.parseInt(multiple); 2440 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2441 if (type == XmlPullParser.START_TAG 2442 && parser.getName().equals(TAG_VALUE)) { 2443 values.add(parser.nextText().trim()); 2444 count--; 2445 } 2446 } 2447 String [] valueStrings = new String[values.size()]; 2448 values.toArray(valueStrings); 2449 restrictions.putStringArray(key, valueStrings); 2450 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2451 restrictions.putBundle(key, readBundleEntry(parser, values)); 2452 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2453 final int outerDepth = parser.getDepth(); 2454 ArrayList<Bundle> bundleList = new ArrayList<>(); 2455 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2456 Bundle childBundle = readBundleEntry(parser, values); 2457 bundleList.add(childBundle); 2458 } 2459 restrictions.putParcelableArray(key, 2460 bundleList.toArray(new Bundle[bundleList.size()])); 2461 } else { 2462 String value = parser.nextText().trim(); 2463 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2464 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2465 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2466 restrictions.putInt(key, Integer.parseInt(value)); 2467 } else { 2468 restrictions.putString(key, value); 2469 } 2470 } 2471 } 2472 } 2473 2474 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2475 throws IOException, XmlPullParserException { 2476 Bundle childBundle = new Bundle(); 2477 final int outerDepth = parser.getDepth(); 2478 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2479 readEntry(childBundle, values, parser); 2480 } 2481 return childBundle; 2482 } 2483 2484 private void writeApplicationRestrictionsLP(String packageName, 2485 Bundle restrictions, int userId) { 2486 AtomicFile restrictionsFile = new AtomicFile( 2487 new File(Environment.getUserSystemDirectory(userId), 2488 packageToRestrictionsFileName(packageName))); 2489 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 2490 } 2491 2492 @VisibleForTesting 2493 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 2494 FileOutputStream fos = null; 2495 try { 2496 fos = restrictionsFile.startWrite(); 2497 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2498 2499 final XmlSerializer serializer = new FastXmlSerializer(); 2500 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2501 serializer.startDocument(null, true); 2502 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2503 2504 serializer.startTag(null, TAG_RESTRICTIONS); 2505 writeBundle(restrictions, serializer); 2506 serializer.endTag(null, TAG_RESTRICTIONS); 2507 2508 serializer.endDocument(); 2509 restrictionsFile.finishWrite(fos); 2510 } catch (Exception e) { 2511 restrictionsFile.failWrite(fos); 2512 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 2513 } 2514 } 2515 2516 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 2517 throws IOException { 2518 for (String key : restrictions.keySet()) { 2519 Object value = restrictions.get(key); 2520 serializer.startTag(null, TAG_ENTRY); 2521 serializer.attribute(null, ATTR_KEY, key); 2522 2523 if (value instanceof Boolean) { 2524 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 2525 serializer.text(value.toString()); 2526 } else if (value instanceof Integer) { 2527 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 2528 serializer.text(value.toString()); 2529 } else if (value == null || value instanceof String) { 2530 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 2531 serializer.text(value != null ? (String) value : ""); 2532 } else if (value instanceof Bundle) { 2533 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2534 writeBundle((Bundle) value, serializer); 2535 } else if (value instanceof Parcelable[]) { 2536 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 2537 Parcelable[] array = (Parcelable[]) value; 2538 for (Parcelable parcelable : array) { 2539 if (!(parcelable instanceof Bundle)) { 2540 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 2541 } 2542 serializer.startTag(null, TAG_ENTRY); 2543 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2544 writeBundle((Bundle) parcelable, serializer); 2545 serializer.endTag(null, TAG_ENTRY); 2546 } 2547 } else { 2548 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 2549 String[] values = (String[]) value; 2550 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 2551 for (String choice : values) { 2552 serializer.startTag(null, TAG_VALUE); 2553 serializer.text(choice != null ? choice : ""); 2554 serializer.endTag(null, TAG_VALUE); 2555 } 2556 } 2557 serializer.endTag(null, TAG_ENTRY); 2558 } 2559 } 2560 2561 @Override 2562 public int getUserSerialNumber(int userHandle) { 2563 synchronized (mUsersLock) { 2564 if (!exists(userHandle)) return -1; 2565 return getUserInfoLU(userHandle).serialNumber; 2566 } 2567 } 2568 2569 @Override 2570 public int getUserHandle(int userSerialNumber) { 2571 synchronized (mUsersLock) { 2572 for (int userId : mUserIds) { 2573 UserInfo info = getUserInfoLU(userId); 2574 if (info != null && info.serialNumber == userSerialNumber) return userId; 2575 } 2576 // Not found 2577 return -1; 2578 } 2579 } 2580 2581 @Override 2582 public long getUserCreationTime(int userHandle) { 2583 int callingUserId = UserHandle.getCallingUserId(); 2584 UserInfo userInfo = null; 2585 synchronized (mUsersLock) { 2586 if (callingUserId == userHandle) { 2587 userInfo = getUserInfoLU(userHandle); 2588 } else { 2589 UserInfo parent = getProfileParentLU(userHandle); 2590 if (parent != null && parent.id == callingUserId) { 2591 userInfo = getUserInfoLU(userHandle); 2592 } 2593 } 2594 } 2595 if (userInfo == null) { 2596 throw new SecurityException("userHandle can only be the calling user or a managed " 2597 + "profile associated with this user"); 2598 } 2599 return userInfo.creationTime; 2600 } 2601 2602 /** 2603 * Caches the list of user ids in an array, adjusting the array size when necessary. 2604 */ 2605 private void updateUserIds() { 2606 int num = 0; 2607 synchronized (mUsersLock) { 2608 final int userSize = mUsers.size(); 2609 for (int i = 0; i < userSize; i++) { 2610 if (!mUsers.valueAt(i).info.partial) { 2611 num++; 2612 } 2613 } 2614 final int[] newUsers = new int[num]; 2615 int n = 0; 2616 for (int i = 0; i < userSize; i++) { 2617 if (!mUsers.valueAt(i).info.partial) { 2618 newUsers[n++] = mUsers.keyAt(i); 2619 } 2620 } 2621 mUserIds = newUsers; 2622 } 2623 } 2624 2625 /** 2626 * Called right before a user is started. This gives us a chance to prepare 2627 * app storage and apply any user restrictions. 2628 */ 2629 public void onBeforeStartUser(int userId) { 2630 final int userSerial = getUserSerialNumber(userId); 2631 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 2632 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE); 2633 2634 if (userId != UserHandle.USER_SYSTEM) { 2635 synchronized (mRestrictionsLock) { 2636 applyUserRestrictionsLR(userId); 2637 } 2638 } 2639 } 2640 2641 /** 2642 * Called right before a user is unlocked. This gives us a chance to prepare 2643 * app storage. 2644 */ 2645 public void onBeforeUnlockUser(@UserIdInt int userId) { 2646 final int userSerial = getUserSerialNumber(userId); 2647 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 2648 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE); 2649 } 2650 2651 /** 2652 * Make a note of the last started time of a user and do some cleanup. 2653 * @param userId the user that was just foregrounded 2654 */ 2655 public void onUserLoggedIn(@UserIdInt int userId) { 2656 UserData userData = getUserDataNoChecks(userId); 2657 if (userData == null || userData.info.partial) { 2658 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 2659 return; 2660 } 2661 2662 final long now = System.currentTimeMillis(); 2663 if (now > EPOCH_PLUS_30_YEARS) { 2664 userData.info.lastLoggedInTime = now; 2665 } 2666 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 2667 scheduleWriteUser(userData); 2668 } 2669 2670 /** 2671 * Returns the next available user id, filling in any holes in the ids. 2672 * TODO: May not be a good idea to recycle ids, in case it results in confusion 2673 * for data and battery stats collection, or unexpected cross-talk. 2674 */ 2675 private int getNextAvailableId() { 2676 synchronized (mUsersLock) { 2677 int i = MIN_USER_ID; 2678 while (i < MAX_USER_ID) { 2679 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 2680 return i; 2681 } 2682 i++; 2683 } 2684 } 2685 throw new IllegalStateException("No user id available!"); 2686 } 2687 2688 private String packageToRestrictionsFileName(String packageName) { 2689 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 2690 } 2691 2692 /** 2693 * Enforce that serial number stored in user directory inode matches the 2694 * given expected value. Gracefully sets the serial number if currently 2695 * undefined. 2696 * 2697 * @throws IOException when problem extracting serial number, or serial 2698 * number is mismatched. 2699 */ 2700 public static void enforceSerialNumber(File file, int serialNumber) throws IOException { 2701 final int foundSerial = getSerialNumber(file); 2702 Slog.v(LOG_TAG, "Found " + file + " with serial number " + foundSerial); 2703 2704 if (foundSerial == -1) { 2705 Slog.d(LOG_TAG, "Serial number missing on " + file + "; assuming current is valid"); 2706 try { 2707 setSerialNumber(file, serialNumber); 2708 } catch (IOException e) { 2709 Slog.w(LOG_TAG, "Failed to set serial number on " + file, e); 2710 } 2711 2712 } else if (foundSerial != serialNumber) { 2713 throw new IOException("Found serial number " + foundSerial 2714 + " doesn't match expected " + serialNumber); 2715 } 2716 } 2717 2718 /** 2719 * Set serial number stored in user directory inode. 2720 * 2721 * @throws IOException if serial number was already set 2722 */ 2723 private static void setSerialNumber(File file, int serialNumber) 2724 throws IOException { 2725 try { 2726 final byte[] buf = Integer.toString(serialNumber).getBytes(StandardCharsets.UTF_8); 2727 Os.setxattr(file.getAbsolutePath(), XATTR_SERIAL, buf, OsConstants.XATTR_CREATE); 2728 } catch (ErrnoException e) { 2729 throw e.rethrowAsIOException(); 2730 } 2731 } 2732 2733 /** 2734 * Return serial number stored in user directory inode. 2735 * 2736 * @return parsed serial number, or -1 if not set 2737 */ 2738 private static int getSerialNumber(File file) throws IOException { 2739 try { 2740 final byte[] buf = new byte[256]; 2741 final int len = Os.getxattr(file.getAbsolutePath(), XATTR_SERIAL, buf); 2742 final String serial = new String(buf, 0, len); 2743 try { 2744 return Integer.parseInt(serial); 2745 } catch (NumberFormatException e) { 2746 throw new IOException("Bad serial number: " + serial); 2747 } 2748 } catch (ErrnoException e) { 2749 if (e.errno == OsConstants.ENODATA) { 2750 return -1; 2751 } else { 2752 throw e.rethrowAsIOException(); 2753 } 2754 } 2755 } 2756 2757 @Override 2758 public void setSeedAccountData(int userId, String accountName, String accountType, 2759 PersistableBundle accountOptions, boolean persist) { 2760 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 2761 synchronized (mPackagesLock) { 2762 final UserData userData; 2763 synchronized (mUsersLock) { 2764 userData = getUserDataLU(userId); 2765 if (userData == null) { 2766 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 2767 return; 2768 } 2769 userData.seedAccountName = accountName; 2770 userData.seedAccountType = accountType; 2771 userData.seedAccountOptions = accountOptions; 2772 userData.persistSeedData = persist; 2773 } 2774 if (persist) { 2775 writeUserLP(userData); 2776 } 2777 } 2778 } 2779 2780 @Override 2781 public String getSeedAccountName() throws RemoteException { 2782 checkManageUsersPermission("Cannot get seed account information"); 2783 synchronized (mUsersLock) { 2784 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2785 return userData.seedAccountName; 2786 } 2787 } 2788 2789 @Override 2790 public String getSeedAccountType() throws RemoteException { 2791 checkManageUsersPermission("Cannot get seed account information"); 2792 synchronized (mUsersLock) { 2793 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2794 return userData.seedAccountType; 2795 } 2796 } 2797 2798 @Override 2799 public PersistableBundle getSeedAccountOptions() throws RemoteException { 2800 checkManageUsersPermission("Cannot get seed account information"); 2801 synchronized (mUsersLock) { 2802 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2803 return userData.seedAccountOptions; 2804 } 2805 } 2806 2807 @Override 2808 public void clearSeedAccountData() throws RemoteException { 2809 checkManageUsersPermission("Cannot clear seed account information"); 2810 synchronized (mPackagesLock) { 2811 UserData userData; 2812 synchronized (mUsersLock) { 2813 userData = getUserDataLU(UserHandle.getCallingUserId()); 2814 if (userData == null) return; 2815 userData.clearSeedAccountData(); 2816 } 2817 writeUserLP(userData); 2818 } 2819 } 2820 2821 @Override 2822 public boolean someUserHasSeedAccount(String accountName, String accountType) 2823 throws RemoteException { 2824 checkManageUsersPermission("Cannot check seed account information"); 2825 synchronized (mUsersLock) { 2826 final int userSize = mUsers.size(); 2827 for (int i = 0; i < userSize; i++) { 2828 final UserData data = mUsers.valueAt(i); 2829 if (data.info.isInitialized()) continue; 2830 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 2831 continue; 2832 } 2833 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 2834 continue; 2835 } 2836 return true; 2837 } 2838 } 2839 return false; 2840 } 2841 2842 @Override 2843 public void onShellCommand(FileDescriptor in, FileDescriptor out, 2844 FileDescriptor err, String[] args, ResultReceiver resultReceiver) { 2845 (new Shell()).exec(this, in, out, err, args, resultReceiver); 2846 } 2847 2848 int onShellCommand(Shell shell, String cmd) { 2849 if (cmd == null) { 2850 return shell.handleDefaultCommands(cmd); 2851 } 2852 2853 final PrintWriter pw = shell.getOutPrintWriter(); 2854 try { 2855 switch(cmd) { 2856 case "list": 2857 return runList(pw); 2858 } 2859 } catch (RemoteException e) { 2860 pw.println("Remote exception: " + e); 2861 } 2862 return -1; 2863 } 2864 2865 private int runList(PrintWriter pw) throws RemoteException { 2866 final IActivityManager am = ActivityManagerNative.getDefault(); 2867 final List<UserInfo> users = getUsers(false); 2868 if (users == null) { 2869 pw.println("Error: couldn't get users"); 2870 return 1; 2871 } else { 2872 pw.println("Users:"); 2873 for (int i = 0; i < users.size(); i++) { 2874 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 2875 pw.println("\t" + users.get(i).toString() + running); 2876 } 2877 return 0; 2878 } 2879 } 2880 2881 @Override 2882 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2883 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 2884 != PackageManager.PERMISSION_GRANTED) { 2885 pw.println("Permission Denial: can't dump UserManager from from pid=" 2886 + Binder.getCallingPid() 2887 + ", uid=" + Binder.getCallingUid() 2888 + " without permission " 2889 + android.Manifest.permission.DUMP); 2890 return; 2891 } 2892 2893 long now = System.currentTimeMillis(); 2894 StringBuilder sb = new StringBuilder(); 2895 synchronized (mPackagesLock) { 2896 synchronized (mUsersLock) { 2897 pw.println("Users:"); 2898 for (int i = 0; i < mUsers.size(); i++) { 2899 UserData userData = mUsers.valueAt(i); 2900 if (userData == null) { 2901 continue; 2902 } 2903 UserInfo userInfo = userData.info; 2904 final int userId = userInfo.id; 2905 pw.print(" "); pw.print(userInfo); 2906 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 2907 if (mRemovingUserIds.get(userId)) { 2908 pw.print(" <removing> "); 2909 } 2910 if (userInfo.partial) { 2911 pw.print(" <partial>"); 2912 } 2913 pw.println(); 2914 pw.print(" Created: "); 2915 if (userInfo.creationTime == 0) { 2916 pw.println("<unknown>"); 2917 } else { 2918 sb.setLength(0); 2919 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 2920 sb.append(" ago"); 2921 pw.println(sb); 2922 } 2923 pw.print(" Last logged in: "); 2924 if (userInfo.lastLoggedInTime == 0) { 2925 pw.println("<unknown>"); 2926 } else { 2927 sb.setLength(0); 2928 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 2929 sb.append(" ago"); 2930 pw.println(sb); 2931 } 2932 pw.print(" Last logged in fingerprint: "); 2933 pw.println(userInfo.lastLoggedInFingerprint); 2934 pw.print(" Has profile owner: "); 2935 pw.println(mIsUserManaged.get(userId)); 2936 pw.println(" Restrictions:"); 2937 synchronized (mRestrictionsLock) { 2938 UserRestrictionsUtils.dumpRestrictions( 2939 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 2940 pw.println(" Device policy local restrictions:"); 2941 UserRestrictionsUtils.dumpRestrictions( 2942 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 2943 pw.println(" Effective restrictions:"); 2944 UserRestrictionsUtils.dumpRestrictions( 2945 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 2946 } 2947 2948 if (userData.account != null) { 2949 pw.print(" Account name: " + userData.account); 2950 pw.println(); 2951 } 2952 2953 if (userData.seedAccountName != null) { 2954 pw.print(" Seed account name: " + userData.seedAccountName); 2955 pw.println(); 2956 if (userData.seedAccountType != null) { 2957 pw.print(" account type: " + userData.seedAccountType); 2958 pw.println(); 2959 } 2960 if (userData.seedAccountOptions != null) { 2961 pw.print(" account options exist"); 2962 pw.println(); 2963 } 2964 } 2965 } 2966 } 2967 pw.println(); 2968 pw.println(" Device policy global restrictions:"); 2969 synchronized (mRestrictionsLock) { 2970 UserRestrictionsUtils 2971 .dumpRestrictions(pw, " ", mDevicePolicyGlobalUserRestrictions); 2972 } 2973 pw.println(); 2974 pw.println(" Guest restrictions:"); 2975 synchronized (mGuestRestrictions) { 2976 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 2977 } 2978 synchronized (mUsersLock) { 2979 pw.println(); 2980 pw.println(" Device managed: " + mIsDeviceManaged); 2981 } 2982 // Dump some capabilities 2983 pw.println(); 2984 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 2985 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 2986 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 2987 com.android.internal.R.bool.config_guestUserEphemeral)); 2988 } 2989 } 2990 2991 final class MainHandler extends Handler { 2992 2993 @Override 2994 public void handleMessage(Message msg) { 2995 switch (msg.what) { 2996 case WRITE_USER_MSG: 2997 removeMessages(WRITE_USER_MSG, msg.obj); 2998 synchronized (mPackagesLock) { 2999 int userId = ((UserData) msg.obj).info.id; 3000 UserData userData = getUserDataNoChecks(userId); 3001 if (userData != null) { 3002 writeUserLP(userData); 3003 } 3004 } 3005 } 3006 } 3007 } 3008 3009 /** 3010 * @param userId 3011 * @return whether the user has been initialized yet 3012 */ 3013 boolean isInitialized(int userId) { 3014 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3015 } 3016 3017 private class LocalService extends UserManagerInternal { 3018 @Override 3019 public void setDevicePolicyUserRestrictions(int userId, @NonNull Bundle localRestrictions, 3020 @Nullable Bundle globalRestrictions) { 3021 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, localRestrictions, 3022 globalRestrictions); 3023 } 3024 3025 @Override 3026 public Bundle getBaseUserRestrictions(int userId) { 3027 synchronized (mRestrictionsLock) { 3028 return mBaseUserRestrictions.get(userId); 3029 } 3030 } 3031 3032 @Override 3033 public void setBaseUserRestrictionsByDpmsForMigration( 3034 int userId, Bundle baseRestrictions) { 3035 synchronized (mRestrictionsLock) { 3036 mBaseUserRestrictions.put(userId, new Bundle(baseRestrictions)); 3037 invalidateEffectiveUserRestrictionsLR(userId); 3038 } 3039 3040 final UserData userData = getUserDataNoChecks(userId); 3041 synchronized (mPackagesLock) { 3042 if (userData != null) { 3043 writeUserLP(userData); 3044 } else { 3045 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3046 } 3047 } 3048 } 3049 3050 @Override 3051 public boolean getUserRestriction(int userId, String key) { 3052 return getUserRestrictions(userId).getBoolean(key); 3053 } 3054 3055 @Override 3056 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3057 synchronized (mUserRestrictionsListeners) { 3058 mUserRestrictionsListeners.add(listener); 3059 } 3060 } 3061 3062 @Override 3063 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3064 synchronized (mUserRestrictionsListeners) { 3065 mUserRestrictionsListeners.remove(listener); 3066 } 3067 } 3068 3069 @Override 3070 public void setDeviceManaged(boolean isManaged) { 3071 synchronized (mUsersLock) { 3072 mIsDeviceManaged = isManaged; 3073 } 3074 } 3075 3076 @Override 3077 public void setUserManaged(int userId, boolean isManaged) { 3078 synchronized (mUsersLock) { 3079 mIsUserManaged.put(userId, isManaged); 3080 } 3081 } 3082 3083 @Override 3084 public void setUserIcon(int userId, Bitmap bitmap) { 3085 long ident = Binder.clearCallingIdentity(); 3086 try { 3087 synchronized (mPackagesLock) { 3088 UserData userData = getUserDataNoChecks(userId); 3089 if (userData == null || userData.info.partial) { 3090 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3091 return; 3092 } 3093 writeBitmapLP(userData.info, bitmap); 3094 writeUserLP(userData); 3095 } 3096 sendUserInfoChangedBroadcast(userId); 3097 } finally { 3098 Binder.restoreCallingIdentity(ident); 3099 } 3100 } 3101 3102 @Override 3103 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3104 synchronized (mUsersLock) { 3105 mForceEphemeralUsers = forceEphemeralUsers; 3106 } 3107 } 3108 3109 @Override 3110 public void removeAllUsers() { 3111 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3112 // Remove the non-system users straight away. 3113 removeNonSystemUsers(); 3114 } else { 3115 // Switch to the system user first and then remove the other users. 3116 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3117 @Override 3118 public void onReceive(Context context, Intent intent) { 3119 int userId = 3120 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3121 if (userId != UserHandle.USER_SYSTEM) { 3122 return; 3123 } 3124 mContext.unregisterReceiver(this); 3125 removeNonSystemUsers(); 3126 } 3127 }; 3128 IntentFilter userSwitchedFilter = new IntentFilter(); 3129 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3130 mContext.registerReceiver( 3131 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3132 3133 // Switch to the system user. 3134 ActivityManager am = 3135 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3136 am.switchUser(UserHandle.USER_SYSTEM); 3137 } 3138 } 3139 3140 @Override 3141 public void onEphemeralUserStop(int userId) { 3142 synchronized (mUsersLock) { 3143 UserInfo userInfo = getUserInfoLU(userId); 3144 if (userInfo != null && userInfo.isEphemeral()) { 3145 // Do not allow switching back to the ephemeral user again as the user is going 3146 // to be deleted. 3147 userInfo.flags |= UserInfo.FLAG_DISABLED; 3148 if (userInfo.isGuest()) { 3149 // Indicate that the guest will be deleted after it stops. 3150 userInfo.guestToRemove = true; 3151 } 3152 } 3153 } 3154 } 3155 3156 @Override 3157 public UserInfo createUserEvenWhenDisallowed(String name, int flags) { 3158 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL); 3159 // Keep this in sync with UserManager.createUser 3160 if (user != null && !user.isAdmin()) { 3161 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3162 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3163 } 3164 return user; 3165 } 3166 } 3167 3168 /* Remove all the users except of the system one. */ 3169 private void removeNonSystemUsers() { 3170 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3171 synchronized (mUsersLock) { 3172 final int userSize = mUsers.size(); 3173 for (int i = 0; i < userSize; i++) { 3174 UserInfo ui = mUsers.valueAt(i).info; 3175 if (ui.id != UserHandle.USER_SYSTEM) { 3176 usersToRemove.add(ui); 3177 } 3178 } 3179 } 3180 for (UserInfo ui: usersToRemove) { 3181 removeUser(ui.id); 3182 } 3183 } 3184 3185 private class Shell extends ShellCommand { 3186 @Override 3187 public int onCommand(String cmd) { 3188 return onShellCommand(this, cmd); 3189 } 3190 3191 @Override 3192 public void onHelp() { 3193 final PrintWriter pw = getOutPrintWriter(); 3194 pw.println("User manager (user) commands:"); 3195 pw.println(" help"); 3196 pw.println(" Print this help text."); 3197 pw.println(""); 3198 pw.println(" list"); 3199 pw.println(" Prints all users on the system."); 3200 } 3201 } 3202 3203 private static void debug(String message) { 3204 Log.d(LOG_TAG, message + 3205 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3206 } 3207} 3208