UserManagerService.java revision e783460274047ab38e3b9c4294339ff130fe566c
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.SystemApi; 27import android.annotation.UserIdInt; 28import android.app.Activity; 29import android.app.ActivityManager; 30import android.app.ActivityManagerInternal; 31import android.app.ActivityManagerNative; 32import android.app.IActivityManager; 33import android.app.IStopUserCallback; 34import android.app.KeyguardManager; 35import android.app.admin.DevicePolicyManager; 36import android.content.BroadcastReceiver; 37import android.content.ComponentName; 38import android.content.Context; 39import android.content.Intent; 40import android.content.IntentFilter; 41import android.content.IntentSender; 42import android.content.pm.PackageManager; 43import android.content.pm.PackageManager.NameNotFoundException; 44import android.content.pm.UserInfo; 45import android.content.res.Resources; 46import android.graphics.Bitmap; 47import android.os.Binder; 48import android.os.Build; 49import android.os.Bundle; 50import android.os.Debug; 51import android.os.Environment; 52import android.os.FileUtils; 53import android.os.Handler; 54import android.os.IBinder; 55import android.os.IUserManager; 56import android.os.Message; 57import android.os.ParcelFileDescriptor; 58import android.os.Parcelable; 59import android.os.PersistableBundle; 60import android.os.Process; 61import android.os.RemoteException; 62import android.os.ResultReceiver; 63import android.os.SELinux; 64import android.os.ServiceManager; 65import android.os.ShellCommand; 66import android.os.UserHandle; 67import android.os.UserManager; 68import android.os.UserManagerInternal; 69import android.os.UserManagerInternal.UserRestrictionsListener; 70import android.os.storage.StorageManager; 71import android.system.ErrnoException; 72import android.system.Os; 73import android.system.OsConstants; 74import android.util.AtomicFile; 75import android.util.IntArray; 76import android.util.Log; 77import android.util.Slog; 78import android.util.SparseArray; 79import android.util.SparseBooleanArray; 80import android.util.TimeUtils; 81import android.util.Xml; 82 83import com.android.internal.annotations.GuardedBy; 84import com.android.internal.annotations.VisibleForTesting; 85import com.android.internal.app.IAppOpsService; 86import com.android.internal.logging.MetricsLogger; 87import com.android.internal.util.FastXmlSerializer; 88import com.android.internal.util.Preconditions; 89import com.android.internal.util.XmlUtils; 90import com.android.internal.widget.LockPatternUtils; 91import com.android.server.LocalServices; 92 93import libcore.io.IoUtils; 94import libcore.util.Objects; 95 96import org.xmlpull.v1.XmlPullParser; 97import org.xmlpull.v1.XmlPullParserException; 98import org.xmlpull.v1.XmlSerializer; 99 100import java.io.BufferedOutputStream; 101import java.io.File; 102import java.io.FileDescriptor; 103import java.io.FileInputStream; 104import java.io.FileNotFoundException; 105import java.io.FileOutputStream; 106import java.io.IOException; 107import java.io.PrintWriter; 108import java.nio.charset.StandardCharsets; 109import java.util.ArrayList; 110import java.util.List; 111 112/** 113 * Service for {@link UserManager}. 114 * 115 * Method naming convention: 116 * <ul> 117 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 118 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 119 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 120 * </ul> 121 */ 122public class UserManagerService extends IUserManager.Stub { 123 private static final String LOG_TAG = "UserManagerService"; 124 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 125 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 126 127 private static final String TAG_NAME = "name"; 128 private static final String TAG_ACCOUNT = "account"; 129 private static final String ATTR_FLAGS = "flags"; 130 private static final String ATTR_ICON_PATH = "icon"; 131 private static final String ATTR_ID = "id"; 132 private static final String ATTR_CREATION_TIME = "created"; 133 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 134 private static final String ATTR_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint"; 135 private static final String ATTR_SERIAL_NO = "serialNumber"; 136 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 137 private static final String ATTR_PARTIAL = "partial"; 138 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 139 private static final String ATTR_USER_VERSION = "version"; 140 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 141 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 142 private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; 143 private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; 144 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 145 private static final String TAG_USERS = "users"; 146 private static final String TAG_USER = "user"; 147 private static final String TAG_RESTRICTIONS = "restrictions"; 148 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 149 private static final String TAG_GLOBAL_RESTRICTION_OWNER_ID = "globalRestrictionOwnerUserId"; 150 private static final String TAG_ENTRY = "entry"; 151 private static final String TAG_VALUE = "value"; 152 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 153 private static final String ATTR_KEY = "key"; 154 private static final String ATTR_VALUE_TYPE = "type"; 155 private static final String ATTR_MULTIPLE = "m"; 156 157 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 158 private static final String ATTR_TYPE_STRING = "s"; 159 private static final String ATTR_TYPE_BOOLEAN = "b"; 160 private static final String ATTR_TYPE_INTEGER = "i"; 161 private static final String ATTR_TYPE_BUNDLE = "B"; 162 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 163 164 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 165 private static final String USER_LIST_FILENAME = "userlist.xml"; 166 private static final String USER_PHOTO_FILENAME = "photo.png"; 167 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 168 169 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 170 private static final String XML_SUFFIX = ".xml"; 171 172 private static final int MIN_USER_ID = 10; 173 // We need to keep process uid within Integer.MAX_VALUE. 174 private static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 175 176 private static final int USER_VERSION = 6; 177 178 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 179 180 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 181 // without first making sure that the rest of the framework is prepared for it. 182 private static final int MAX_MANAGED_PROFILES = 1; 183 184 static final int WRITE_USER_MSG = 1; 185 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 186 187 private static final String XATTR_SERIAL = "user.serial"; 188 189 // Tron counters 190 private static final String TRON_GUEST_CREATED = "users_guest_created"; 191 private static final String TRON_USER_CREATED = "users_user_created"; 192 193 private final Context mContext; 194 private final PackageManagerService mPm; 195 private final Object mPackagesLock; 196 // Short-term lock for internal state, when interaction/sync with PM is not required 197 private final Object mUsersLock = new Object(); 198 private final Object mRestrictionsLock = new Object(); 199 200 private final Handler mHandler; 201 202 private final File mUsersDir; 203 private final File mUserListFile; 204 205 private static final IBinder mUserRestriconToken = new Binder(); 206 207 /** 208 * User-related information that is used for persisting to flash. Only UserInfo is 209 * directly exposed to other system apps. 210 */ 211 private static class UserData { 212 // Basic user information and properties 213 UserInfo info; 214 // Account name used when there is a strong association between a user and an account 215 String account; 216 // Account information for seeding into a newly created user. This could also be 217 // used for login validation for an existing user, for updating their credentials. 218 // In the latter case, data may not need to be persisted as it is only valid for the 219 // current login session. 220 String seedAccountName; 221 String seedAccountType; 222 PersistableBundle seedAccountOptions; 223 // Whether to perist the seed account information to be available after a boot 224 boolean persistSeedData; 225 226 void clearSeedAccountData() { 227 seedAccountName = null; 228 seedAccountType = null; 229 seedAccountOptions = null; 230 persistSeedData = false; 231 } 232 } 233 234 @GuardedBy("mUsersLock") 235 private final SparseArray<UserData> mUsers = new SparseArray<>(); 236 237 /** 238 * User restrictions set via UserManager. This doesn't include restrictions set by 239 * device owner / profile owners. 240 * 241 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 242 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 243 * maybe shared between {@link #mBaseUserRestrictions} and 244 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 245 * (Otherwise we won't be able to detect what restrictions have changed in 246 * {@link #updateUserRestrictionsInternalLR}. 247 */ 248 @GuardedBy("mRestrictionsLock") 249 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 250 251 /** 252 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 253 * with device / profile owner restrictions. We'll initialize it lazily; use 254 * {@link #getEffectiveUserRestrictions} to access it. 255 * 256 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 257 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 258 * maybe shared between {@link #mBaseUserRestrictions} and 259 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 260 * (Otherwise we won't be able to detect what restrictions have changed in 261 * {@link #updateUserRestrictionsInternalLR}. 262 */ 263 @GuardedBy("mRestrictionsLock") 264 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 265 266 /** 267 * User restrictions that have already been applied in 268 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 269 * that have changed since the last 270 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 271 */ 272 @GuardedBy("mRestrictionsLock") 273 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 274 275 /** 276 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 277 * that should be applied to all users, including guests. 278 */ 279 @GuardedBy("mRestrictionsLock") 280 private Bundle mDevicePolicyGlobalUserRestrictions; 281 282 /** 283 * Id of the user that set global restrictions. 284 */ 285 @GuardedBy("mRestrictionsLock") 286 private int mGlobalRestrictionOwnerUserId = UserHandle.USER_NULL; 287 288 /** 289 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 290 * for each user. 291 */ 292 @GuardedBy("mRestrictionsLock") 293 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 294 295 @GuardedBy("mGuestRestrictions") 296 private final Bundle mGuestRestrictions = new Bundle(); 297 298 /** 299 * Set of user IDs being actively removed. Removed IDs linger in this set 300 * for several seconds to work around a VFS caching issue. 301 */ 302 @GuardedBy("mUsersLock") 303 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 304 305 @GuardedBy("mUsersLock") 306 private int[] mUserIds; 307 @GuardedBy("mPackagesLock") 308 private int mNextSerialNumber; 309 private int mUserVersion = 0; 310 311 private IAppOpsService mAppOpsService; 312 313 private final LocalService mLocalService; 314 315 @GuardedBy("mUsersLock") 316 private boolean mIsDeviceManaged; 317 318 @GuardedBy("mUsersLock") 319 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 320 321 @GuardedBy("mUserRestrictionsListeners") 322 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 323 new ArrayList<>(); 324 325 private final LockPatternUtils mLockPatternUtils; 326 327 /** 328 * Whether all users should be created ephemeral. 329 */ 330 @GuardedBy("mUsersLock") 331 private boolean mForceEphemeralUsers; 332 333 private static UserManagerService sInstance; 334 335 public static UserManagerService getInstance() { 336 synchronized (UserManagerService.class) { 337 return sInstance; 338 } 339 } 340 341 @VisibleForTesting 342 UserManagerService(File dataDir) { 343 this(null, null, new Object(), dataDir); 344 } 345 346 /** 347 * Called by package manager to create the service. This is closely 348 * associated with the package manager, and the given lock is the 349 * package manager's own lock. 350 */ 351 UserManagerService(Context context, PackageManagerService pm, Object packagesLock) { 352 this(context, pm, packagesLock, Environment.getDataDirectory()); 353 } 354 355 private UserManagerService(Context context, PackageManagerService pm, 356 Object packagesLock, File dataDir) { 357 mContext = context; 358 mPm = pm; 359 mPackagesLock = packagesLock; 360 mHandler = new MainHandler(); 361 synchronized (mPackagesLock) { 362 mUsersDir = new File(dataDir, USER_INFO_DIR); 363 mUsersDir.mkdirs(); 364 // Make zeroth user directory, for services to migrate their files to that location 365 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 366 userZeroDir.mkdirs(); 367 FileUtils.setPermissions(mUsersDir.toString(), 368 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 369 -1, -1); 370 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 371 initDefaultGuestRestrictions(); 372 readUserListLP(); 373 sInstance = this; 374 } 375 mLocalService = new LocalService(); 376 LocalServices.addService(UserManagerInternal.class, mLocalService); 377 mLockPatternUtils = new LockPatternUtils(mContext); 378 } 379 380 void systemReady() { 381 // Prune out any partially created, partially removed and ephemeral users. 382 ArrayList<UserInfo> partials = new ArrayList<>(); 383 synchronized (mUsersLock) { 384 final int userSize = mUsers.size(); 385 for (int i = 0; i < userSize; i++) { 386 UserInfo ui = mUsers.valueAt(i).info; 387 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 388 partials.add(ui); 389 } 390 } 391 } 392 final int partialsSize = partials.size(); 393 for (int i = 0; i < partialsSize; i++) { 394 UserInfo ui = partials.get(i); 395 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 396 + " (name=" + ui.name + ")"); 397 removeUserState(ui.id); 398 } 399 400 mAppOpsService = IAppOpsService.Stub.asInterface( 401 ServiceManager.getService(Context.APP_OPS_SERVICE)); 402 403 synchronized (mRestrictionsLock) { 404 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 405 } 406 407 UserInfo currentGuestUser = findCurrentGuestUser(); 408 if (currentGuestUser != null && !hasUserRestriction( 409 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 410 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 411 // to it, in case this guest was created in a previous version where this 412 // user restriction was not a default guest restriction. 413 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 414 } 415 } 416 417 @Override 418 public String getUserAccount(int userId) { 419 checkManageUserAndAcrossUsersFullPermission("get user account"); 420 synchronized (mUsersLock) { 421 return mUsers.get(userId).account; 422 } 423 } 424 425 @Override 426 public void setUserAccount(int userId, String accountName) { 427 checkManageUserAndAcrossUsersFullPermission("set user account"); 428 UserData userToUpdate = null; 429 synchronized (mPackagesLock) { 430 synchronized (mUsersLock) { 431 final UserData userData = mUsers.get(userId); 432 if (userData == null) { 433 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 434 return; 435 } 436 String currentAccount = userData.account; 437 if (!Objects.equal(currentAccount, accountName)) { 438 userData.account = accountName; 439 userToUpdate = userData; 440 } 441 } 442 443 if (userToUpdate != null) { 444 writeUserLP(userToUpdate); 445 } 446 } 447 } 448 449 @Override 450 public UserInfo getPrimaryUser() { 451 checkManageUsersPermission("query users"); 452 synchronized (mUsersLock) { 453 final int userSize = mUsers.size(); 454 for (int i = 0; i < userSize; i++) { 455 UserInfo ui = mUsers.valueAt(i).info; 456 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 457 return ui; 458 } 459 } 460 } 461 return null; 462 } 463 464 @Override 465 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 466 checkManageUsersPermission("query users"); 467 synchronized (mUsersLock) { 468 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 469 final int userSize = mUsers.size(); 470 for (int i = 0; i < userSize; i++) { 471 UserInfo ui = mUsers.valueAt(i).info; 472 if (ui.partial) { 473 continue; 474 } 475 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 476 users.add(userWithName(ui)); 477 } 478 } 479 return users; 480 } 481 } 482 483 @Override 484 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 485 boolean returnFullInfo = true; 486 if (userId != UserHandle.getCallingUserId()) { 487 checkManageUsersPermission("getting profiles related to user " + userId); 488 } else { 489 returnFullInfo = hasManageUsersPermission(); 490 } 491 final long ident = Binder.clearCallingIdentity(); 492 try { 493 synchronized (mUsersLock) { 494 return getProfilesLU(userId, enabledOnly, returnFullInfo); 495 } 496 } finally { 497 Binder.restoreCallingIdentity(ident); 498 } 499 } 500 501 @Override 502 public int[] getProfileIds(int userId, boolean enabledOnly) { 503 if (userId != UserHandle.getCallingUserId()) { 504 checkManageUsersPermission("getting profiles related to user " + userId); 505 } 506 final long ident = Binder.clearCallingIdentity(); 507 try { 508 synchronized (mUsersLock) { 509 return getProfileIdsLU(userId, enabledOnly).toArray(); 510 } 511 } finally { 512 Binder.restoreCallingIdentity(ident); 513 } 514 } 515 516 /** Assume permissions already checked and caller's identity cleared */ 517 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 518 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 519 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 520 for (int i = 0; i < profileIds.size(); i++) { 521 int profileId = profileIds.get(i); 522 UserInfo userInfo = mUsers.get(profileId).info; 523 // If full info is not required - clear PII data to prevent 3P apps from reading it 524 if (!fullInfo) { 525 userInfo = new UserInfo(userInfo); 526 userInfo.name = null; 527 userInfo.iconPath = null; 528 } else { 529 userInfo = userWithName(userInfo); 530 } 531 users.add(userInfo); 532 } 533 return users; 534 } 535 536 /** 537 * Assume permissions already checked and caller's identity cleared 538 */ 539 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 540 UserInfo user = getUserInfoLU(userId); 541 IntArray result = new IntArray(mUsers.size()); 542 if (user == null) { 543 // Probably a dying user 544 return result; 545 } 546 final int userSize = mUsers.size(); 547 for (int i = 0; i < userSize; i++) { 548 UserInfo profile = mUsers.valueAt(i).info; 549 if (!isProfileOf(user, profile)) { 550 continue; 551 } 552 if (enabledOnly && !profile.isEnabled()) { 553 continue; 554 } 555 if (mRemovingUserIds.get(profile.id)) { 556 continue; 557 } 558 if (profile.partial) { 559 continue; 560 } 561 result.add(profile.id); 562 } 563 return result; 564 } 565 566 @Override 567 public int getCredentialOwnerProfile(int userHandle) { 568 checkManageUsersPermission("get the credential owner"); 569 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 570 synchronized (mUsersLock) { 571 UserInfo profileParent = getProfileParentLU(userHandle); 572 if (profileParent != null) { 573 return profileParent.id; 574 } 575 } 576 } 577 578 return userHandle; 579 } 580 581 @Override 582 public boolean isSameProfileGroup(int userId, int otherUserId) { 583 if (userId == otherUserId) return true; 584 checkManageUsersPermission("check if in the same profile group"); 585 synchronized (mPackagesLock) { 586 return isSameProfileGroupLP(userId, otherUserId); 587 } 588 } 589 590 private boolean isSameProfileGroupLP(int userId, int otherUserId) { 591 synchronized (mUsersLock) { 592 UserInfo userInfo = getUserInfoLU(userId); 593 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 594 return false; 595 } 596 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 597 if (otherUserInfo == null 598 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 599 return false; 600 } 601 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 602 } 603 } 604 605 @Override 606 public UserInfo getProfileParent(int userHandle) { 607 checkManageUsersPermission("get the profile parent"); 608 synchronized (mUsersLock) { 609 return getProfileParentLU(userHandle); 610 } 611 } 612 613 private UserInfo getProfileParentLU(int userHandle) { 614 UserInfo profile = getUserInfoLU(userHandle); 615 if (profile == null) { 616 return null; 617 } 618 int parentUserId = profile.profileGroupId; 619 if (parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 620 return null; 621 } else { 622 return getUserInfoLU(parentUserId); 623 } 624 } 625 626 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 627 return user.id == profile.id || 628 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 629 && user.profileGroupId == profile.profileGroupId); 630 } 631 632 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 633 UserHandle parentHandle, boolean inQuietMode) { 634 Intent intent = new Intent(); 635 if (inQuietMode) { 636 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 637 } else { 638 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 639 } 640 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 641 intent.putExtra(Intent.EXTRA_USER, profileHandle); 642 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 643 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 644 mContext.sendBroadcastAsUser(intent, parentHandle); 645 } 646 647 @Override 648 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { 649 checkManageUsersPermission("silence profile"); 650 boolean changed = false; 651 UserInfo profile, parent; 652 synchronized (mPackagesLock) { 653 synchronized (mUsersLock) { 654 profile = getUserInfoLU(userHandle); 655 parent = getProfileParentLU(userHandle); 656 657 } 658 if (profile == null || !profile.isManagedProfile()) { 659 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 660 } 661 if (profile.isQuietModeEnabled() != enableQuietMode) { 662 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 663 writeUserLP(getUserDataLU(profile.id)); 664 changed = true; 665 } 666 } 667 if (changed) { 668 long identity = Binder.clearCallingIdentity(); 669 try { 670 if (enableQuietMode) { 671 LocalServices.getService(ActivityManagerInternal.class) 672 .killForegroundAppsForUser(userHandle); 673 ActivityManagerNative.getDefault().stopUser(userHandle, /* force */true, null); 674 } else { 675 ActivityManagerNative.getDefault().startUserInBackground(userHandle); 676 } 677 } catch (RemoteException e) { 678 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 679 } finally { 680 Binder.restoreCallingIdentity(identity); 681 } 682 683 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 684 enableQuietMode); 685 } 686 } 687 688 @Override 689 public boolean isQuietModeEnabled(int userHandle) { 690 synchronized (mPackagesLock) { 691 UserInfo info; 692 synchronized (mUsersLock) { 693 info = getUserInfoLU(userHandle); 694 } 695 if (info == null || !info.isManagedProfile()) { 696 return false; 697 } 698 return info.isQuietModeEnabled(); 699 } 700 } 701 702 @Override 703 public boolean trySetQuietModeDisabled(int userHandle, IntentSender target) { 704 if (mContext.getSystemService(StorageManager.class).isUserKeyUnlocked(userHandle) 705 || !mLockPatternUtils.isSecure(userHandle) 706 || !mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 707 // if the user is already unlocked, no need to show a profile challenge 708 setQuietModeEnabled(userHandle, false); 709 return true; 710 } 711 712 long identity = Binder.clearCallingIdentity(); 713 try { 714 // otherwise, we show a profile challenge to trigger decryption of the user 715 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 716 Context.KEYGUARD_SERVICE); 717 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 718 userHandle); 719 if (unlockIntent == null) { 720 return false; 721 } 722 if (target != null) { 723 unlockIntent.putExtra(Intent.EXTRA_INTENT, target); 724 } 725 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 726 mContext.startActivity(unlockIntent); 727 } finally { 728 Binder.restoreCallingIdentity(identity); 729 } 730 return false; 731 } 732 733 @Override 734 public void setUserEnabled(int userId) { 735 checkManageUsersPermission("enable user"); 736 synchronized (mPackagesLock) { 737 UserInfo info; 738 synchronized (mUsersLock) { 739 info = getUserInfoLU(userId); 740 } 741 if (info != null && !info.isEnabled()) { 742 info.flags ^= UserInfo.FLAG_DISABLED; 743 writeUserLP(getUserDataLU(info.id)); 744 } 745 } 746 } 747 748 @Override 749 public UserInfo getUserInfo(int userId) { 750 checkManageUsersPermission("query user"); 751 synchronized (mUsersLock) { 752 return userWithName(getUserInfoLU(userId)); 753 } 754 } 755 756 /** 757 * Returns a UserInfo object with the name filled in, for Owner, or the original 758 * if the name is already set. 759 */ 760 private UserInfo userWithName(UserInfo orig) { 761 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 762 UserInfo withName = new UserInfo(orig); 763 withName.name = getOwnerName(); 764 return withName; 765 } else { 766 return orig; 767 } 768 } 769 770 @Override 771 public boolean isManagedProfile(int userId) { 772 int callingUserId = UserHandle.getCallingUserId(); 773 if (callingUserId != userId && !hasManageUsersPermission()) { 774 synchronized (mPackagesLock) { 775 if (!isSameProfileGroupLP(callingUserId, userId)) { 776 throw new SecurityException( 777 "You need MANAGE_USERS permission to: check if specified user a " + 778 "managed profile outside your profile group"); 779 } 780 } 781 } 782 synchronized (mUsersLock) { 783 UserInfo userInfo = getUserInfoLU(userId); 784 return userInfo != null && userInfo.isManagedProfile(); 785 } 786 } 787 788 @Override 789 public boolean isRestricted() { 790 synchronized (mUsersLock) { 791 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 792 } 793 } 794 795 @Override 796 public boolean canHaveRestrictedProfile(int userId) { 797 checkManageUsersPermission("canHaveRestrictedProfile"); 798 synchronized (mUsersLock) { 799 final UserInfo userInfo = getUserInfoLU(userId); 800 if (userInfo == null || !userInfo.canHaveProfile()) { 801 return false; 802 } 803 if (!userInfo.isAdmin()) { 804 return false; 805 } 806 // restricted profile can be created if there is no DO set and the admin user has no PO; 807 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 808 } 809 } 810 811 /* 812 * Should be locked on mUsers before calling this. 813 */ 814 private UserInfo getUserInfoLU(int userId) { 815 final UserData userData = mUsers.get(userId); 816 // If it is partial and not in the process of being removed, return as unknown user. 817 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 818 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 819 return null; 820 } 821 return userData != null ? userData.info : null; 822 } 823 824 private UserData getUserDataLU(int userId) { 825 final UserData userData = mUsers.get(userId); 826 // If it is partial and not in the process of being removed, return as unknown user. 827 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 828 return null; 829 } 830 return userData; 831 } 832 833 /** 834 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 835 * <p>No permissions checking or any addition checks are made</p> 836 */ 837 private UserInfo getUserInfoNoChecks(int userId) { 838 synchronized (mUsersLock) { 839 final UserData userData = mUsers.get(userId); 840 return userData != null ? userData.info : null; 841 } 842 } 843 844 /** 845 * Obtains {@link #mUsersLock} and return UserData from mUsers. 846 * <p>No permissions checking or any addition checks are made</p> 847 */ 848 private UserData getUserDataNoChecks(int userId) { 849 synchronized (mUsersLock) { 850 return mUsers.get(userId); 851 } 852 } 853 854 /** Called by PackageManagerService */ 855 public boolean exists(int userId) { 856 return getUserInfoNoChecks(userId) != null; 857 } 858 859 @Override 860 public void setUserName(int userId, String name) { 861 checkManageUsersPermission("rename users"); 862 boolean changed = false; 863 synchronized (mPackagesLock) { 864 UserData userData = getUserDataNoChecks(userId); 865 if (userData == null || userData.info.partial) { 866 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 867 return; 868 } 869 if (name != null && !name.equals(userData.info.name)) { 870 userData.info.name = name; 871 writeUserLP(userData); 872 changed = true; 873 } 874 } 875 if (changed) { 876 sendUserInfoChangedBroadcast(userId); 877 } 878 } 879 880 @Override 881 public void setUserIcon(int userId, Bitmap bitmap) { 882 checkManageUsersPermission("update users"); 883 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 884 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 885 return; 886 } 887 mLocalService.setUserIcon(userId, bitmap); 888 } 889 890 891 892 private void sendUserInfoChangedBroadcast(int userId) { 893 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 894 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 895 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 896 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 897 } 898 899 @Override 900 public ParcelFileDescriptor getUserIcon(int targetUserId) { 901 String iconPath; 902 synchronized (mPackagesLock) { 903 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 904 if (targetUserInfo == null || targetUserInfo.partial) { 905 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 906 return null; 907 } 908 909 final int callingUserId = UserHandle.getCallingUserId(); 910 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 911 final int targetGroupId = targetUserInfo.profileGroupId; 912 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 913 && callingGroupId == targetGroupId); 914 if ((callingUserId != targetUserId) && !sameGroup) { 915 checkManageUsersPermission("get the icon of a user who is not related"); 916 } 917 918 if (targetUserInfo.iconPath == null) { 919 return null; 920 } 921 iconPath = targetUserInfo.iconPath; 922 } 923 924 try { 925 return ParcelFileDescriptor.open( 926 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 927 } catch (FileNotFoundException e) { 928 Log.e(LOG_TAG, "Couldn't find icon file", e); 929 } 930 return null; 931 } 932 933 public void makeInitialized(int userId) { 934 checkManageUsersPermission("makeInitialized"); 935 boolean scheduleWriteUser = false; 936 UserData userData; 937 synchronized (mUsersLock) { 938 userData = mUsers.get(userId); 939 if (userData == null || userData.info.partial) { 940 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 941 return; 942 } 943 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 944 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 945 scheduleWriteUser = true; 946 } 947 } 948 if (scheduleWriteUser) { 949 scheduleWriteUser(userData); 950 } 951 } 952 953 /** 954 * If default guest restrictions haven't been initialized yet, add the basic 955 * restrictions. 956 */ 957 private void initDefaultGuestRestrictions() { 958 synchronized (mGuestRestrictions) { 959 if (mGuestRestrictions.isEmpty()) { 960 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 961 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 962 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 963 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 964 } 965 } 966 } 967 968 @Override 969 public Bundle getDefaultGuestRestrictions() { 970 checkManageUsersPermission("getDefaultGuestRestrictions"); 971 synchronized (mGuestRestrictions) { 972 return new Bundle(mGuestRestrictions); 973 } 974 } 975 976 @Override 977 public void setDefaultGuestRestrictions(Bundle restrictions) { 978 checkManageUsersPermission("setDefaultGuestRestrictions"); 979 synchronized (mGuestRestrictions) { 980 mGuestRestrictions.clear(); 981 mGuestRestrictions.putAll(restrictions); 982 } 983 synchronized (mPackagesLock) { 984 writeUserListLP(); 985 } 986 } 987 988 /** 989 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions(int, Bundle, Bundle)} 990 */ 991 void setDevicePolicyUserRestrictionsInner(int userId, @NonNull Bundle local, 992 @Nullable Bundle global) { 993 Preconditions.checkNotNull(local); 994 boolean globalChanged = false; 995 boolean localChanged; 996 synchronized (mRestrictionsLock) { 997 if (global != null) { 998 // Update global. 999 globalChanged = !UserRestrictionsUtils.areEqual( 1000 mDevicePolicyGlobalUserRestrictions, global); 1001 if (globalChanged) { 1002 mDevicePolicyGlobalUserRestrictions = global; 1003 } 1004 // Remember the global restriction owner userId to be able to make a distinction 1005 // in getUserRestrictionSource on who set local policies. 1006 mGlobalRestrictionOwnerUserId = userId; 1007 } else { 1008 // When profile owner sets restrictions it passes null global bundle and we reset 1009 // global restriction owner userId. 1010 mGlobalRestrictionOwnerUserId = UserHandle.USER_NULL; 1011 } 1012 { 1013 // Update local. 1014 final Bundle prev = mDevicePolicyLocalUserRestrictions.get(userId); 1015 localChanged = !UserRestrictionsUtils.areEqual(prev, local); 1016 if (localChanged) { 1017 mDevicePolicyLocalUserRestrictions.put(userId, local); 1018 } 1019 } 1020 } 1021 if (DBG) { 1022 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1023 + " global=" + global + (globalChanged ? " (changed)" : "") 1024 + " local=" + local + (localChanged ? " (changed)" : "") 1025 ); 1026 } 1027 // Don't call them within the mRestrictionsLock. 1028 synchronized (mPackagesLock) { 1029 if (localChanged) { 1030 writeUserLP(getUserDataNoChecks(userId)); 1031 } 1032 if (globalChanged) { 1033 writeUserListLP(); 1034 } 1035 } 1036 1037 synchronized (mRestrictionsLock) { 1038 if (globalChanged) { 1039 applyUserRestrictionsForAllUsersLR(); 1040 } else if (localChanged) { 1041 applyUserRestrictionsLR(userId); 1042 } 1043 } 1044 } 1045 1046 @GuardedBy("mRestrictionsLock") 1047 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1048 final Bundle baseRestrictions = 1049 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1050 final Bundle global = mDevicePolicyGlobalUserRestrictions; 1051 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1052 1053 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1054 // Common case first. 1055 return baseRestrictions; 1056 } 1057 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1058 UserRestrictionsUtils.merge(effective, global); 1059 UserRestrictionsUtils.merge(effective, local); 1060 1061 return effective; 1062 } 1063 1064 @GuardedBy("mRestrictionsLock") 1065 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1066 if (DBG) { 1067 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1068 } 1069 mCachedEffectiveUserRestrictions.remove(userId); 1070 } 1071 1072 private Bundle getEffectiveUserRestrictions(int userId) { 1073 synchronized (mRestrictionsLock) { 1074 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1075 if (restrictions == null) { 1076 restrictions = computeEffectiveUserRestrictionsLR(userId); 1077 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1078 } 1079 return restrictions; 1080 } 1081 } 1082 1083 /** @return a specific user restriction that's in effect currently. */ 1084 @Override 1085 public boolean hasUserRestriction(String restrictionKey, int userId) { 1086 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1087 return false; 1088 } 1089 Bundle restrictions = getEffectiveUserRestrictions(userId); 1090 return restrictions != null && restrictions.getBoolean(restrictionKey); 1091 } 1092 1093 /** 1094 * @hide 1095 * 1096 * Returns who set a user restriction on a user. 1097 * Requires {@link android.Manifest.permission#MANAGE_USERS} permission. 1098 * @param restrictionKey the string key representing the restriction 1099 * @param userId the id of the user for whom to retrieve the restrictions. 1100 * @return The source of user restriction. Any combination of 1101 * {@link UserManager#RESTRICTION_NOT_SET}, 1102 * {@link UserManager#RESTRICTION_SOURCE_SYSTEM}, 1103 * {@link UserManager#RESTRICTION_SOURCE_DEVICE_OWNER} 1104 * and {@link UserManager#RESTRICTION_SOURCE_PROFILE_OWNER} 1105 */ 1106 @Override 1107 public int getUserRestrictionSource(String restrictionKey, int userId) { 1108 checkManageUsersPermission("getUserRestrictionSource"); 1109 int result = UserManager.RESTRICTION_NOT_SET; 1110 1111 // Shortcut for the most common case 1112 if (!hasUserRestriction(restrictionKey, userId)) { 1113 return result; 1114 } 1115 1116 if (hasBaseUserRestriction(restrictionKey, userId)) { 1117 result |= UserManager.RESTRICTION_SOURCE_SYSTEM; 1118 } 1119 1120 synchronized(mRestrictionsLock) { 1121 Bundle localRestrictions = mDevicePolicyLocalUserRestrictions.get(userId); 1122 if (!UserRestrictionsUtils.isEmpty(localRestrictions) 1123 && localRestrictions.getBoolean(restrictionKey)) { 1124 // Local restrictions may have been set by device owner the userId of which is 1125 // stored in mGlobalRestrictionOwnerUserId. 1126 if (mGlobalRestrictionOwnerUserId == userId) { 1127 result |= UserManager.RESTRICTION_SOURCE_DEVICE_OWNER; 1128 } else { 1129 result |= UserManager.RESTRICTION_SOURCE_PROFILE_OWNER; 1130 } 1131 } 1132 if (!UserRestrictionsUtils.isEmpty(mDevicePolicyGlobalUserRestrictions) 1133 && mDevicePolicyGlobalUserRestrictions.getBoolean(restrictionKey)) { 1134 result |= UserManager.RESTRICTION_SOURCE_DEVICE_OWNER; 1135 } 1136 } 1137 1138 return result; 1139 } 1140 1141 /** 1142 * @return UserRestrictions that are in effect currently. This always returns a new 1143 * {@link Bundle}. 1144 */ 1145 @Override 1146 public Bundle getUserRestrictions(int userId) { 1147 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1148 } 1149 1150 @Override 1151 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1152 checkManageUsersPermission("hasBaseUserRestriction"); 1153 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1154 return false; 1155 } 1156 synchronized (mRestrictionsLock) { 1157 Bundle bundle = mBaseUserRestrictions.get(userId); 1158 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1159 } 1160 } 1161 1162 @Override 1163 public void setUserRestriction(String key, boolean value, int userId) { 1164 checkManageUsersPermission("setUserRestriction"); 1165 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1166 return; 1167 } 1168 synchronized (mRestrictionsLock) { 1169 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1170 // a copy. 1171 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1172 mBaseUserRestrictions.get(userId)); 1173 newRestrictions.putBoolean(key, value); 1174 1175 updateUserRestrictionsInternalLR(newRestrictions, userId); 1176 } 1177 } 1178 1179 /** 1180 * Optionally updating user restrictions, calculate the effective user restrictions and also 1181 * propagate to other services and system settings. 1182 * 1183 * @param newRestrictions User restrictions to set. 1184 * If null, will not update user restrictions and only does the propagation. 1185 * @param userId target user ID. 1186 */ 1187 @GuardedBy("mRestrictionsLock") 1188 private void updateUserRestrictionsInternalLR( 1189 @Nullable Bundle newRestrictions, int userId) { 1190 1191 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1192 mAppliedUserRestrictions.get(userId)); 1193 1194 // Update base restrictions. 1195 if (newRestrictions != null) { 1196 // If newRestrictions == the current one, it's probably a bug. 1197 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1198 1199 Preconditions.checkState(prevBaseRestrictions != newRestrictions); 1200 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1201 != newRestrictions); 1202 1203 if (!UserRestrictionsUtils.areEqual(prevBaseRestrictions, newRestrictions)) { 1204 mBaseUserRestrictions.put(userId, newRestrictions); 1205 scheduleWriteUser(getUserDataNoChecks(userId)); 1206 } 1207 } 1208 1209 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1210 1211 mCachedEffectiveUserRestrictions.put(userId, effective); 1212 1213 // Apply the new restrictions. 1214 if (DBG) { 1215 debug("Applying user restrictions: userId=" + userId 1216 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1217 } 1218 1219 if (mAppOpsService != null) { // We skip it until system-ready. 1220 final long token = Binder.clearCallingIdentity(); 1221 try { 1222 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1223 } catch (RemoteException e) { 1224 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1225 } finally { 1226 Binder.restoreCallingIdentity(token); 1227 } 1228 } 1229 1230 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1231 1232 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1233 } 1234 1235 private void propagateUserRestrictionsLR(final int userId, 1236 Bundle newRestrictions, Bundle prevRestrictions) { 1237 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1238 // actually, but we still need some kind of synchronization otherwise we might end up 1239 // calling listeners out-of-order, thus "LR". 1240 1241 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1242 return; 1243 } 1244 1245 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1246 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1247 1248 mHandler.post(new Runnable() { 1249 @Override 1250 public void run() { 1251 UserRestrictionsUtils.applyUserRestrictions( 1252 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1253 1254 final UserRestrictionsListener[] listeners; 1255 synchronized (mUserRestrictionsListeners) { 1256 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1257 mUserRestrictionsListeners.toArray(listeners); 1258 } 1259 for (int i = 0; i < listeners.length; i++) { 1260 listeners[i].onUserRestrictionsChanged(userId, 1261 newRestrictionsFinal, prevRestrictionsFinal); 1262 } 1263 } 1264 }); 1265 } 1266 1267 // Package private for the inner class. 1268 void applyUserRestrictionsLR(int userId) { 1269 updateUserRestrictionsInternalLR(null, userId); 1270 } 1271 1272 @GuardedBy("mRestrictionsLock") 1273 // Package private for the inner class. 1274 void applyUserRestrictionsForAllUsersLR() { 1275 if (DBG) { 1276 debug("applyUserRestrictionsForAllUsersLR"); 1277 } 1278 // First, invalidate all cached values. 1279 mCachedEffectiveUserRestrictions.clear(); 1280 1281 // We don't want to call into ActivityManagerNative while taking a lock, so we'll call 1282 // it on a handler. 1283 final Runnable r = new Runnable() { 1284 @Override 1285 public void run() { 1286 // Then get the list of running users. 1287 final int[] runningUsers; 1288 try { 1289 runningUsers = ActivityManagerNative.getDefault().getRunningUserIds(); 1290 } catch (RemoteException e) { 1291 Log.w(LOG_TAG, "Unable to access ActivityManagerNative"); 1292 return; 1293 } 1294 // Then re-calculate the effective restrictions and apply, only for running users. 1295 // It's okay if a new user has started after the getRunningUserIds() call, 1296 // because we'll do the same thing (re-calculate the restrictions and apply) 1297 // when we start a user. 1298 synchronized (mRestrictionsLock) { 1299 for (int i = 0; i < runningUsers.length; i++) { 1300 applyUserRestrictionsLR(runningUsers[i]); 1301 } 1302 } 1303 } 1304 }; 1305 mHandler.post(r); 1306 } 1307 1308 /** 1309 * Check if we've hit the limit of how many users can be created. 1310 */ 1311 private boolean isUserLimitReached() { 1312 int count; 1313 synchronized (mUsersLock) { 1314 count = getAliveUsersExcludingGuestsCountLU(); 1315 } 1316 return count >= UserManager.getMaxSupportedUsers(); 1317 } 1318 1319 @Override 1320 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1321 checkManageUsersPermission("check if more managed profiles can be added."); 1322 if (ActivityManager.isLowRamDeviceStatic()) { 1323 return false; 1324 } 1325 if (!mContext.getPackageManager().hasSystemFeature( 1326 PackageManager.FEATURE_MANAGED_USERS)) { 1327 return false; 1328 } 1329 // Limit number of managed profiles that can be created 1330 final int managedProfilesCount = getProfiles(userId, true).size() - 1; 1331 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1332 if (managedProfilesCount - profilesRemovedCount >= MAX_MANAGED_PROFILES) { 1333 return false; 1334 } 1335 synchronized(mUsersLock) { 1336 UserInfo userInfo = getUserInfoLU(userId); 1337 if (!userInfo.canHaveProfile()) { 1338 return false; 1339 } 1340 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1341 - profilesRemovedCount; 1342 // We allow creating a managed profile in the special case where there is only one user. 1343 return usersCountAfterRemoving == 1 1344 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1345 } 1346 } 1347 1348 private int getAliveUsersExcludingGuestsCountLU() { 1349 int aliveUserCount = 0; 1350 final int totalUserCount = mUsers.size(); 1351 // Skip over users being removed 1352 for (int i = 0; i < totalUserCount; i++) { 1353 UserInfo user = mUsers.valueAt(i).info; 1354 if (!mRemovingUserIds.get(user.id) 1355 && !user.isGuest() && !user.partial) { 1356 aliveUserCount++; 1357 } 1358 } 1359 return aliveUserCount; 1360 } 1361 1362 /** 1363 * Enforces that only the system UID or root's UID or apps that have the 1364 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1365 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1366 * permissions can make certain calls to the UserManager. 1367 * 1368 * @param message used as message if SecurityException is thrown 1369 * @throws SecurityException if the caller does not have enough privilege. 1370 */ 1371 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1372 final int uid = Binder.getCallingUid(); 1373 if (uid != Process.SYSTEM_UID && uid != 0 1374 && ActivityManager.checkComponentPermission( 1375 Manifest.permission.MANAGE_USERS, 1376 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1377 && ActivityManager.checkComponentPermission( 1378 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1379 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1380 throw new SecurityException( 1381 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1382 + message); 1383 } 1384 } 1385 1386 /** 1387 * Enforces that only the system UID or root's UID or apps that have the 1388 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1389 * permission can make certain calls to the UserManager. 1390 * 1391 * @param message used as message if SecurityException is thrown 1392 * @throws SecurityException if the caller is not system or root 1393 * @see #hasManageUsersPermission() 1394 */ 1395 private static final void checkManageUsersPermission(String message) { 1396 if (!hasManageUsersPermission()) { 1397 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1398 } 1399 } 1400 1401 /** 1402 * @return whether the calling UID is system UID or root's UID or the calling app has the 1403 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1404 */ 1405 private static final boolean hasManageUsersPermission() { 1406 final int callingUid = Binder.getCallingUid(); 1407 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1408 || callingUid == Process.ROOT_UID 1409 || ActivityManager.checkComponentPermission( 1410 android.Manifest.permission.MANAGE_USERS, 1411 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1412 } 1413 1414 /** 1415 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1416 * UserManager. 1417 * 1418 * @param message used as message if SecurityException is thrown 1419 * @throws SecurityException if the caller is not system or root 1420 */ 1421 private static void checkSystemOrRoot(String message) { 1422 final int uid = Binder.getCallingUid(); 1423 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1424 throw new SecurityException("Only system may: " + message); 1425 } 1426 } 1427 1428 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1429 try { 1430 File dir = new File(mUsersDir, Integer.toString(info.id)); 1431 File file = new File(dir, USER_PHOTO_FILENAME); 1432 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1433 if (!dir.exists()) { 1434 dir.mkdir(); 1435 FileUtils.setPermissions( 1436 dir.getPath(), 1437 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1438 -1, -1); 1439 } 1440 FileOutputStream os; 1441 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1442 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1443 info.iconPath = file.getAbsolutePath(); 1444 } 1445 try { 1446 os.close(); 1447 } catch (IOException ioe) { 1448 // What the ... ! 1449 } 1450 tmp.delete(); 1451 } catch (FileNotFoundException e) { 1452 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1453 } 1454 } 1455 1456 /** 1457 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1458 * cache it elsewhere. 1459 * @return the array of user ids. 1460 */ 1461 public int[] getUserIds() { 1462 synchronized (mUsersLock) { 1463 return mUserIds; 1464 } 1465 } 1466 1467 private void readUserListLP() { 1468 if (!mUserListFile.exists()) { 1469 fallbackToSingleUserLP(); 1470 return; 1471 } 1472 FileInputStream fis = null; 1473 AtomicFile userListFile = new AtomicFile(mUserListFile); 1474 try { 1475 fis = userListFile.openRead(); 1476 XmlPullParser parser = Xml.newPullParser(); 1477 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1478 int type; 1479 while ((type = parser.next()) != XmlPullParser.START_TAG 1480 && type != XmlPullParser.END_DOCUMENT) { 1481 // Skip 1482 } 1483 1484 if (type != XmlPullParser.START_TAG) { 1485 Slog.e(LOG_TAG, "Unable to read user list"); 1486 fallbackToSingleUserLP(); 1487 return; 1488 } 1489 1490 mNextSerialNumber = -1; 1491 if (parser.getName().equals(TAG_USERS)) { 1492 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1493 if (lastSerialNumber != null) { 1494 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1495 } 1496 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1497 if (versionNumber != null) { 1498 mUserVersion = Integer.parseInt(versionNumber); 1499 } 1500 } 1501 1502 final Bundle newDevicePolicyGlobalUserRestrictions = new Bundle(); 1503 1504 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1505 if (type == XmlPullParser.START_TAG) { 1506 final String name = parser.getName(); 1507 if (name.equals(TAG_USER)) { 1508 String id = parser.getAttributeValue(null, ATTR_ID); 1509 1510 UserData userData = readUserLP(Integer.parseInt(id)); 1511 1512 if (userData != null) { 1513 synchronized (mUsersLock) { 1514 mUsers.put(userData.info.id, userData); 1515 if (mNextSerialNumber < 0 1516 || mNextSerialNumber <= userData.info.id) { 1517 mNextSerialNumber = userData.info.id + 1; 1518 } 1519 } 1520 } 1521 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1522 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1523 && type != XmlPullParser.END_TAG) { 1524 if (type == XmlPullParser.START_TAG) { 1525 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1526 synchronized (mGuestRestrictions) { 1527 UserRestrictionsUtils 1528 .readRestrictions(parser, mGuestRestrictions); 1529 } 1530 } else if (parser.getName().equals(TAG_DEVICE_POLICY_RESTRICTIONS) 1531 ) { 1532 UserRestrictionsUtils.readRestrictions(parser, 1533 newDevicePolicyGlobalUserRestrictions); 1534 } 1535 break; 1536 } 1537 } 1538 } else if (name.equals(TAG_GLOBAL_RESTRICTION_OWNER_ID)) { 1539 String ownerUserId = parser.getAttributeValue(null, ATTR_ID); 1540 if (ownerUserId != null) { 1541 mGlobalRestrictionOwnerUserId = Integer.parseInt(ownerUserId); 1542 } 1543 } 1544 } 1545 } 1546 synchronized (mRestrictionsLock) { 1547 mDevicePolicyGlobalUserRestrictions = newDevicePolicyGlobalUserRestrictions; 1548 } 1549 updateUserIds(); 1550 upgradeIfNecessaryLP(); 1551 } catch (IOException | XmlPullParserException e) { 1552 fallbackToSingleUserLP(); 1553 } finally { 1554 IoUtils.closeQuietly(fis); 1555 } 1556 } 1557 1558 /** 1559 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1560 */ 1561 private void upgradeIfNecessaryLP() { 1562 final int originalVersion = mUserVersion; 1563 int userVersion = mUserVersion; 1564 if (userVersion < 1) { 1565 // Assign a proper name for the owner, if not initialized correctly before 1566 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1567 if ("Primary".equals(userData.info.name)) { 1568 userData.info.name = 1569 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1570 scheduleWriteUser(userData); 1571 } 1572 userVersion = 1; 1573 } 1574 1575 if (userVersion < 2) { 1576 // Owner should be marked as initialized 1577 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1578 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1579 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1580 scheduleWriteUser(userData); 1581 } 1582 userVersion = 2; 1583 } 1584 1585 1586 if (userVersion < 4) { 1587 userVersion = 4; 1588 } 1589 1590 if (userVersion < 5) { 1591 initDefaultGuestRestrictions(); 1592 userVersion = 5; 1593 } 1594 1595 if (userVersion < 6) { 1596 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1597 synchronized (mUsersLock) { 1598 for (int i = 0; i < mUsers.size(); i++) { 1599 UserData userData = mUsers.valueAt(i); 1600 // In non-split mode, only user 0 can have restricted profiles 1601 if (!splitSystemUser && userData.info.isRestricted() 1602 && (userData.info.restrictedProfileParentId 1603 == UserInfo.NO_PROFILE_GROUP_ID)) { 1604 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1605 scheduleWriteUser(userData); 1606 } 1607 } 1608 } 1609 userVersion = 6; 1610 } 1611 1612 if (userVersion < USER_VERSION) { 1613 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1614 + USER_VERSION); 1615 } else { 1616 mUserVersion = userVersion; 1617 1618 if (originalVersion < mUserVersion) { 1619 writeUserListLP(); 1620 } 1621 } 1622 } 1623 1624 private void fallbackToSingleUserLP() { 1625 int flags = UserInfo.FLAG_INITIALIZED; 1626 // In split system user mode, the admin and primary flags are assigned to the first human 1627 // user. 1628 if (!UserManager.isSplitSystemUser()) { 1629 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1630 } 1631 // Create the system user 1632 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 1633 UserData userData = new UserData(); 1634 userData.info = system; 1635 synchronized (mUsersLock) { 1636 mUsers.put(system.id, userData); 1637 } 1638 mNextSerialNumber = MIN_USER_ID; 1639 mUserVersion = USER_VERSION; 1640 1641 Bundle restrictions = new Bundle(); 1642 synchronized (mRestrictionsLock) { 1643 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1644 } 1645 1646 updateUserIds(); 1647 initDefaultGuestRestrictions(); 1648 1649 writeUserLP(userData); 1650 writeUserListLP(); 1651 } 1652 1653 private String getOwnerName() { 1654 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 1655 } 1656 1657 private void scheduleWriteUser(UserData UserData) { 1658 if (DBG) { 1659 debug("scheduleWriteUser"); 1660 } 1661 // No need to wrap it within a lock -- worst case, we'll just post the same message 1662 // twice. 1663 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 1664 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 1665 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1666 } 1667 } 1668 1669 /* 1670 * Writes the user file in this format: 1671 * 1672 * <user flags="20039023" id="0"> 1673 * <name>Primary</name> 1674 * </user> 1675 */ 1676 private void writeUserLP(UserData userData) { 1677 if (DBG) { 1678 debug("writeUserLP " + userData); 1679 } 1680 FileOutputStream fos = null; 1681 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 1682 try { 1683 fos = userFile.startWrite(); 1684 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1685 1686 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1687 final XmlSerializer serializer = new FastXmlSerializer(); 1688 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1689 serializer.startDocument(null, true); 1690 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1691 1692 final UserInfo userInfo = userData.info; 1693 serializer.startTag(null, TAG_USER); 1694 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 1695 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 1696 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 1697 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 1698 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 1699 Long.toString(userInfo.lastLoggedInTime)); 1700 if (userInfo.lastLoggedInFingerprint != null) { 1701 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 1702 userInfo.lastLoggedInFingerprint); 1703 } 1704 if (userInfo.iconPath != null) { 1705 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 1706 } 1707 if (userInfo.partial) { 1708 serializer.attribute(null, ATTR_PARTIAL, "true"); 1709 } 1710 if (userInfo.guestToRemove) { 1711 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 1712 } 1713 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 1714 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 1715 Integer.toString(userInfo.profileGroupId)); 1716 } 1717 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 1718 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 1719 Integer.toString(userInfo.restrictedProfileParentId)); 1720 } 1721 // Write seed data 1722 if (userData.persistSeedData) { 1723 if (userData.seedAccountName != null) { 1724 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 1725 } 1726 if (userData.seedAccountType != null) { 1727 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 1728 } 1729 } 1730 if (userInfo.name != null) { 1731 serializer.startTag(null, TAG_NAME); 1732 serializer.text(userInfo.name); 1733 serializer.endTag(null, TAG_NAME); 1734 } 1735 synchronized (mRestrictionsLock) { 1736 UserRestrictionsUtils.writeRestrictions(serializer, 1737 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 1738 UserRestrictionsUtils.writeRestrictions(serializer, 1739 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 1740 TAG_DEVICE_POLICY_RESTRICTIONS); 1741 } 1742 1743 if (userData.account != null) { 1744 serializer.startTag(null, TAG_ACCOUNT); 1745 serializer.text(userData.account); 1746 serializer.endTag(null, TAG_ACCOUNT); 1747 } 1748 1749 if (userData.persistSeedData && userData.seedAccountOptions != null) { 1750 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1751 userData.seedAccountOptions.saveToXml(serializer); 1752 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1753 } 1754 serializer.endTag(null, TAG_USER); 1755 1756 serializer.endDocument(); 1757 userFile.finishWrite(fos); 1758 } catch (Exception ioe) { 1759 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 1760 userFile.failWrite(fos); 1761 } 1762 } 1763 1764 /* 1765 * Writes the user list file in this format: 1766 * 1767 * <users nextSerialNumber="3"> 1768 * <user id="0"></user> 1769 * <user id="2"></user> 1770 * </users> 1771 */ 1772 private void writeUserListLP() { 1773 if (DBG) { 1774 debug("writeUserList"); 1775 } 1776 FileOutputStream fos = null; 1777 AtomicFile userListFile = new AtomicFile(mUserListFile); 1778 try { 1779 fos = userListFile.startWrite(); 1780 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1781 1782 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1783 final XmlSerializer serializer = new FastXmlSerializer(); 1784 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1785 serializer.startDocument(null, true); 1786 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1787 1788 serializer.startTag(null, TAG_USERS); 1789 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 1790 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 1791 1792 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 1793 synchronized (mGuestRestrictions) { 1794 UserRestrictionsUtils 1795 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 1796 } 1797 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 1798 synchronized (mRestrictionsLock) { 1799 UserRestrictionsUtils.writeRestrictions(serializer, 1800 mDevicePolicyGlobalUserRestrictions, TAG_DEVICE_POLICY_RESTRICTIONS); 1801 } 1802 serializer.startTag(null, TAG_GLOBAL_RESTRICTION_OWNER_ID); 1803 serializer.attribute(null, ATTR_ID, Integer.toString(mGlobalRestrictionOwnerUserId)); 1804 serializer.endTag(null, TAG_GLOBAL_RESTRICTION_OWNER_ID); 1805 int[] userIdsToWrite; 1806 synchronized (mUsersLock) { 1807 userIdsToWrite = new int[mUsers.size()]; 1808 for (int i = 0; i < userIdsToWrite.length; i++) { 1809 UserInfo user = mUsers.valueAt(i).info; 1810 userIdsToWrite[i] = user.id; 1811 } 1812 } 1813 for (int id : userIdsToWrite) { 1814 serializer.startTag(null, TAG_USER); 1815 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 1816 serializer.endTag(null, TAG_USER); 1817 } 1818 1819 serializer.endTag(null, TAG_USERS); 1820 1821 serializer.endDocument(); 1822 userListFile.finishWrite(fos); 1823 } catch (Exception e) { 1824 userListFile.failWrite(fos); 1825 Slog.e(LOG_TAG, "Error writing user list"); 1826 } 1827 } 1828 1829 private UserData readUserLP(int id) { 1830 int flags = 0; 1831 int serialNumber = id; 1832 String name = null; 1833 String account = null; 1834 String iconPath = null; 1835 long creationTime = 0L; 1836 long lastLoggedInTime = 0L; 1837 String lastLoggedInFingerprint = null; 1838 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 1839 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 1840 boolean partial = false; 1841 boolean guestToRemove = false; 1842 boolean persistSeedData = false; 1843 String seedAccountName = null; 1844 String seedAccountType = null; 1845 PersistableBundle seedAccountOptions = null; 1846 Bundle baseRestrictions = new Bundle(); 1847 Bundle localRestrictions = new Bundle(); 1848 1849 FileInputStream fis = null; 1850 try { 1851 AtomicFile userFile = 1852 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 1853 fis = userFile.openRead(); 1854 XmlPullParser parser = Xml.newPullParser(); 1855 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1856 int type; 1857 while ((type = parser.next()) != XmlPullParser.START_TAG 1858 && type != XmlPullParser.END_DOCUMENT) { 1859 // Skip 1860 } 1861 1862 if (type != XmlPullParser.START_TAG) { 1863 Slog.e(LOG_TAG, "Unable to read user " + id); 1864 return null; 1865 } 1866 1867 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 1868 int storedId = readIntAttribute(parser, ATTR_ID, -1); 1869 if (storedId != id) { 1870 Slog.e(LOG_TAG, "User id does not match the file name"); 1871 return null; 1872 } 1873 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 1874 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 1875 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 1876 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 1877 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 1878 lastLoggedInFingerprint = parser.getAttributeValue(null, 1879 ATTR_LAST_LOGGED_IN_FINGERPRINT); 1880 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 1881 UserInfo.NO_PROFILE_GROUP_ID); 1882 restrictedProfileParentId = readIntAttribute(parser, 1883 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 1884 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 1885 if ("true".equals(valueString)) { 1886 partial = true; 1887 } 1888 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 1889 if ("true".equals(valueString)) { 1890 guestToRemove = true; 1891 } 1892 1893 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 1894 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 1895 if (seedAccountName != null || seedAccountType != null) { 1896 persistSeedData = true; 1897 } 1898 1899 int outerDepth = parser.getDepth(); 1900 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1901 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1902 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1903 continue; 1904 } 1905 String tag = parser.getName(); 1906 if (TAG_NAME.equals(tag)) { 1907 type = parser.next(); 1908 if (type == XmlPullParser.TEXT) { 1909 name = parser.getText(); 1910 } 1911 } else if (TAG_RESTRICTIONS.equals(tag)) { 1912 UserRestrictionsUtils.readRestrictions(parser, baseRestrictions); 1913 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 1914 UserRestrictionsUtils.readRestrictions(parser, localRestrictions); 1915 } else if (TAG_ACCOUNT.equals(tag)) { 1916 type = parser.next(); 1917 if (type == XmlPullParser.TEXT) { 1918 account = parser.getText(); 1919 } 1920 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 1921 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 1922 persistSeedData = true; 1923 } 1924 } 1925 } 1926 1927 // Create the UserInfo object that gets passed around 1928 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 1929 userInfo.serialNumber = serialNumber; 1930 userInfo.creationTime = creationTime; 1931 userInfo.lastLoggedInTime = lastLoggedInTime; 1932 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 1933 userInfo.partial = partial; 1934 userInfo.guestToRemove = guestToRemove; 1935 userInfo.profileGroupId = profileGroupId; 1936 userInfo.restrictedProfileParentId = restrictedProfileParentId; 1937 1938 // Create the UserData object that's internal to this class 1939 UserData userData = new UserData(); 1940 userData.info = userInfo; 1941 userData.account = account; 1942 userData.seedAccountName = seedAccountName; 1943 userData.seedAccountType = seedAccountType; 1944 userData.persistSeedData = persistSeedData; 1945 userData.seedAccountOptions = seedAccountOptions; 1946 1947 synchronized (mRestrictionsLock) { 1948 mBaseUserRestrictions.put(id, baseRestrictions); 1949 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 1950 } 1951 return userData; 1952 } catch (IOException ioe) { 1953 } catch (XmlPullParserException pe) { 1954 } finally { 1955 if (fis != null) { 1956 try { 1957 fis.close(); 1958 } catch (IOException e) { 1959 } 1960 } 1961 } 1962 return null; 1963 } 1964 1965 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 1966 String valueString = parser.getAttributeValue(null, attr); 1967 if (valueString == null) return defaultValue; 1968 try { 1969 return Integer.parseInt(valueString); 1970 } catch (NumberFormatException nfe) { 1971 return defaultValue; 1972 } 1973 } 1974 1975 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 1976 String valueString = parser.getAttributeValue(null, attr); 1977 if (valueString == null) return defaultValue; 1978 try { 1979 return Long.parseLong(valueString); 1980 } catch (NumberFormatException nfe) { 1981 return defaultValue; 1982 } 1983 } 1984 1985 /** 1986 * Removes the app restrictions file for a specific package and user id, if it exists. 1987 */ 1988 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 1989 synchronized (mPackagesLock) { 1990 File dir = Environment.getUserSystemDirectory(userId); 1991 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 1992 if (resFile.exists()) { 1993 resFile.delete(); 1994 } 1995 } 1996 } 1997 1998 @Override 1999 public UserInfo createProfileForUser(String name, int flags, int userId) { 2000 checkManageUsersPermission("Only the system can create users"); 2001 return createUserInternal(name, flags, userId); 2002 } 2003 2004 @Override 2005 public UserInfo createUser(String name, int flags) { 2006 checkManageUsersPermission("Only the system can create users"); 2007 return createUserInternal(name, flags, UserHandle.USER_NULL); 2008 } 2009 2010 private UserInfo createUserInternal(String name, int flags, int parentId) { 2011 if (hasUserRestriction(UserManager.DISALLOW_ADD_USER, UserHandle.getCallingUserId())) { 2012 Log.w(LOG_TAG, "Cannot add user. DISALLOW_ADD_USER is enabled."); 2013 return null; 2014 } 2015 return createUserInternalUnchecked(name, flags, parentId); 2016 } 2017 2018 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId) { 2019 if (ActivityManager.isLowRamDeviceStatic()) { 2020 return null; 2021 } 2022 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 2023 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 2024 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 2025 final long ident = Binder.clearCallingIdentity(); 2026 UserInfo userInfo; 2027 UserData userData; 2028 final int userId; 2029 try { 2030 synchronized (mPackagesLock) { 2031 UserData parent = null; 2032 if (parentId != UserHandle.USER_NULL) { 2033 synchronized (mUsersLock) { 2034 parent = getUserDataLU(parentId); 2035 } 2036 if (parent == null) return null; 2037 } 2038 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 2039 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 2040 return null; 2041 } 2042 if (!isGuest && !isManagedProfile && isUserLimitReached()) { 2043 // If we're not adding a guest user or a managed profile and the limit has 2044 // been reached, cannot add a user. 2045 return null; 2046 } 2047 // If we're adding a guest and there already exists one, bail. 2048 if (isGuest && findCurrentGuestUser() != null) { 2049 return null; 2050 } 2051 // In legacy mode, restricted profile's parent can only be the owner user 2052 if (isRestricted && !UserManager.isSplitSystemUser() 2053 && (parentId != UserHandle.USER_SYSTEM)) { 2054 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 2055 return null; 2056 } 2057 if (isRestricted && UserManager.isSplitSystemUser()) { 2058 if (parent == null) { 2059 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 2060 + "specified"); 2061 return null; 2062 } 2063 if (!parent.info.canHaveProfile()) { 2064 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 2065 + "created for the specified parent user id " + parentId); 2066 return null; 2067 } 2068 } 2069 if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0) { 2070 Log.e(LOG_TAG, 2071 "Ephemeral users are supported on split-system-user systems only."); 2072 return null; 2073 } 2074 // In split system user mode, we assign the first human user the primary flag. 2075 // And if there is no device owner, we also assign the admin flag to primary user. 2076 if (UserManager.isSplitSystemUser() 2077 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2078 flags |= UserInfo.FLAG_PRIMARY; 2079 synchronized (mUsersLock) { 2080 if (!mIsDeviceManaged) { 2081 flags |= UserInfo.FLAG_ADMIN; 2082 } 2083 } 2084 } 2085 2086 userId = getNextAvailableId(); 2087 Environment.getUserSystemDirectory(userId).mkdirs(); 2088 boolean ephemeralGuests = Resources.getSystem() 2089 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2090 2091 synchronized (mUsersLock) { 2092 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2093 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2094 || (parent != null && parent.info.isEphemeral())) { 2095 flags |= UserInfo.FLAG_EPHEMERAL; 2096 } 2097 2098 userInfo = new UserInfo(userId, name, null, flags); 2099 userInfo.serialNumber = mNextSerialNumber++; 2100 long now = System.currentTimeMillis(); 2101 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2102 userInfo.partial = true; 2103 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2104 userData = new UserData(); 2105 userData.info = userInfo; 2106 mUsers.put(userId, userData); 2107 } 2108 writeUserLP(userData); 2109 writeUserListLP(); 2110 if (parent != null) { 2111 if (isManagedProfile) { 2112 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2113 parent.info.profileGroupId = parent.info.id; 2114 writeUserLP(parent); 2115 } 2116 userInfo.profileGroupId = parent.info.profileGroupId; 2117 } else if (isRestricted) { 2118 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2119 parent.info.restrictedProfileParentId = parent.info.id; 2120 writeUserLP(parent); 2121 } 2122 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2123 } 2124 } 2125 } 2126 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2127 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2128 mPm.prepareUserData(userId, userInfo.serialNumber, 2129 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2130 mPm.createNewUser(userId); 2131 userInfo.partial = false; 2132 synchronized (mPackagesLock) { 2133 writeUserLP(userData); 2134 } 2135 updateUserIds(); 2136 Bundle restrictions = new Bundle(); 2137 if (isGuest) { 2138 synchronized (mGuestRestrictions) { 2139 restrictions.putAll(mGuestRestrictions); 2140 } 2141 } 2142 synchronized (mRestrictionsLock) { 2143 mBaseUserRestrictions.append(userId, restrictions); 2144 } 2145 mPm.newUserCreated(userId); 2146 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2147 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2148 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2149 android.Manifest.permission.MANAGE_USERS); 2150 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED : TRON_USER_CREATED, 1); 2151 } finally { 2152 Binder.restoreCallingIdentity(ident); 2153 } 2154 return userInfo; 2155 } 2156 2157 /** 2158 * @hide 2159 */ 2160 @Override 2161 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2162 checkManageUsersPermission("setupRestrictedProfile"); 2163 final UserInfo user = createProfileForUser(name, UserInfo.FLAG_RESTRICTED, parentUserId); 2164 if (user == null) { 2165 return null; 2166 } 2167 long identity = Binder.clearCallingIdentity(); 2168 try { 2169 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2170 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2171 // the putIntForUser() will fail. 2172 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2173 android.provider.Settings.Secure.LOCATION_MODE, 2174 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2175 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2176 } finally { 2177 Binder.restoreCallingIdentity(identity); 2178 } 2179 return user; 2180 } 2181 2182 /** 2183 * Find the current guest user. If the Guest user is partial, 2184 * then do not include it in the results as it is about to die. 2185 */ 2186 private UserInfo findCurrentGuestUser() { 2187 synchronized (mUsersLock) { 2188 final int size = mUsers.size(); 2189 for (int i = 0; i < size; i++) { 2190 final UserInfo user = mUsers.valueAt(i).info; 2191 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2192 return user; 2193 } 2194 } 2195 } 2196 return null; 2197 } 2198 2199 /** 2200 * Mark this guest user for deletion to allow us to create another guest 2201 * and switch to that user before actually removing this guest. 2202 * @param userHandle the userid of the current guest 2203 * @return whether the user could be marked for deletion 2204 */ 2205 @Override 2206 public boolean markGuestForDeletion(int userHandle) { 2207 checkManageUsersPermission("Only the system can remove users"); 2208 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2209 UserManager.DISALLOW_REMOVE_USER, false)) { 2210 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2211 return false; 2212 } 2213 2214 long ident = Binder.clearCallingIdentity(); 2215 try { 2216 final UserData userData; 2217 synchronized (mPackagesLock) { 2218 synchronized (mUsersLock) { 2219 userData = mUsers.get(userHandle); 2220 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2221 return false; 2222 } 2223 } 2224 if (!userData.info.isGuest()) { 2225 return false; 2226 } 2227 // We set this to a guest user that is to be removed. This is a temporary state 2228 // where we are allowed to add new Guest users, even if this one is still not 2229 // removed. This user will still show up in getUserInfo() calls. 2230 // If we don't get around to removing this Guest user, it will be purged on next 2231 // startup. 2232 userData.info.guestToRemove = true; 2233 // Mark it as disabled, so that it isn't returned any more when 2234 // profiles are queried. 2235 userData.info.flags |= UserInfo.FLAG_DISABLED; 2236 writeUserLP(userData); 2237 } 2238 } finally { 2239 Binder.restoreCallingIdentity(ident); 2240 } 2241 return true; 2242 } 2243 2244 /** 2245 * Removes a user and all data directories created for that user. This method should be called 2246 * after the user's processes have been terminated. 2247 * @param userHandle the user's id 2248 */ 2249 @Override 2250 public boolean removeUser(int userHandle) { 2251 checkManageUsersPermission("Only the system can remove users"); 2252 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2253 UserManager.DISALLOW_REMOVE_USER, false)) { 2254 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2255 return false; 2256 } 2257 2258 long ident = Binder.clearCallingIdentity(); 2259 try { 2260 final UserData userData; 2261 int currentUser = ActivityManager.getCurrentUser(); 2262 if (currentUser == userHandle) { 2263 Log.w(LOG_TAG, "Current user cannot be removed"); 2264 return false; 2265 } 2266 synchronized (mPackagesLock) { 2267 synchronized (mUsersLock) { 2268 userData = mUsers.get(userHandle); 2269 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2270 return false; 2271 } 2272 2273 // We remember deleted user IDs to prevent them from being 2274 // reused during the current boot; they can still be reused 2275 // after a reboot. 2276 mRemovingUserIds.put(userHandle, true); 2277 } 2278 2279 try { 2280 mAppOpsService.removeUser(userHandle); 2281 } catch (RemoteException e) { 2282 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2283 } 2284 // Set this to a partially created user, so that the user will be purged 2285 // on next startup, in case the runtime stops now before stopping and 2286 // removing the user completely. 2287 userData.info.partial = true; 2288 // Mark it as disabled, so that it isn't returned any more when 2289 // profiles are queried. 2290 userData.info.flags |= UserInfo.FLAG_DISABLED; 2291 writeUserLP(userData); 2292 } 2293 2294 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2295 && userData.info.isManagedProfile()) { 2296 // Send broadcast to notify system that the user removed was a 2297 // managed user. 2298 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2299 } 2300 2301 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2302 int res; 2303 try { 2304 res = ActivityManagerNative.getDefault().stopUser(userHandle, /* force= */ true, 2305 new IStopUserCallback.Stub() { 2306 @Override 2307 public void userStopped(int userId) { 2308 finishRemoveUser(userId); 2309 } 2310 @Override 2311 public void userStopAborted(int userId) { 2312 } 2313 }); 2314 } catch (RemoteException e) { 2315 return false; 2316 } 2317 return res == ActivityManager.USER_OP_SUCCESS; 2318 } finally { 2319 Binder.restoreCallingIdentity(ident); 2320 } 2321 } 2322 2323 void finishRemoveUser(final int userHandle) { 2324 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2325 // Let other services shutdown any activity and clean up their state before completely 2326 // wiping the user's system directory and removing from the user list 2327 long ident = Binder.clearCallingIdentity(); 2328 try { 2329 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2330 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2331 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2332 android.Manifest.permission.MANAGE_USERS, 2333 2334 new BroadcastReceiver() { 2335 @Override 2336 public void onReceive(Context context, Intent intent) { 2337 if (DBG) { 2338 Slog.i(LOG_TAG, 2339 "USER_REMOVED broadcast sent, cleaning up user data " 2340 + userHandle); 2341 } 2342 new Thread() { 2343 @Override 2344 public void run() { 2345 // Clean up any ActivityManager state 2346 LocalServices.getService(ActivityManagerInternal.class) 2347 .onUserRemoved(userHandle); 2348 removeUserState(userHandle); 2349 } 2350 }.start(); 2351 } 2352 }, 2353 2354 null, Activity.RESULT_OK, null, null); 2355 } finally { 2356 Binder.restoreCallingIdentity(ident); 2357 } 2358 } 2359 2360 private void removeUserState(final int userHandle) { 2361 try { 2362 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2363 } catch (IllegalStateException e) { 2364 // This may be simply because the user was partially created. 2365 Slog.i(LOG_TAG, 2366 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2367 } 2368 2369 // Cleanup package manager settings 2370 mPm.cleanUpUser(this, userHandle); 2371 // Remove this user from the list 2372 synchronized (mUsersLock) { 2373 mUsers.remove(userHandle); 2374 mIsUserManaged.delete(userHandle); 2375 } 2376 synchronized (mRestrictionsLock) { 2377 mBaseUserRestrictions.remove(userHandle); 2378 mAppliedUserRestrictions.remove(userHandle); 2379 mCachedEffectiveUserRestrictions.remove(userHandle); 2380 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2381 } 2382 // Update the user list 2383 synchronized (mPackagesLock) { 2384 writeUserListLP(); 2385 } 2386 // Remove user file 2387 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2388 userFile.delete(); 2389 updateUserIds(); 2390 2391 // Now that we've purged all the metadata above, destroy the actual data 2392 // on disk; if we battery pull in here we'll finish cleaning up when 2393 // reconciling after reboot. 2394 mPm.destroyUserData(userHandle, 2395 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2396 } 2397 2398 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2399 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2400 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2401 Intent.FLAG_RECEIVER_FOREGROUND); 2402 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2403 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2404 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2405 } 2406 2407 @Override 2408 public Bundle getApplicationRestrictions(String packageName) { 2409 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2410 } 2411 2412 @Override 2413 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2414 if (UserHandle.getCallingUserId() != userId 2415 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2416 checkSystemOrRoot("get application restrictions for other users/apps"); 2417 } 2418 synchronized (mPackagesLock) { 2419 // Read the restrictions from XML 2420 return readApplicationRestrictionsLP(packageName, userId); 2421 } 2422 } 2423 2424 @Override 2425 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2426 int userId) { 2427 checkSystemOrRoot("set application restrictions"); 2428 if (restrictions != null) { 2429 restrictions.setDefusable(true); 2430 } 2431 synchronized (mPackagesLock) { 2432 if (restrictions == null || restrictions.isEmpty()) { 2433 cleanAppRestrictionsForPackage(packageName, userId); 2434 } else { 2435 // Write the restrictions to XML 2436 writeApplicationRestrictionsLP(packageName, restrictions, userId); 2437 } 2438 } 2439 2440 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2441 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2442 changeIntent.setPackage(packageName); 2443 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2444 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2445 } 2446 2447 private int getUidForPackage(String packageName) { 2448 long ident = Binder.clearCallingIdentity(); 2449 try { 2450 return mContext.getPackageManager().getApplicationInfo(packageName, 2451 PackageManager.MATCH_UNINSTALLED_PACKAGES).uid; 2452 } catch (NameNotFoundException nnfe) { 2453 return -1; 2454 } finally { 2455 Binder.restoreCallingIdentity(ident); 2456 } 2457 } 2458 2459 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 2460 AtomicFile restrictionsFile = 2461 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2462 packageToRestrictionsFileName(packageName))); 2463 return readApplicationRestrictionsLP(restrictionsFile); 2464 } 2465 2466 @VisibleForTesting 2467 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 2468 final Bundle restrictions = new Bundle(); 2469 final ArrayList<String> values = new ArrayList<>(); 2470 if (!restrictionsFile.getBaseFile().exists()) { 2471 return restrictions; 2472 } 2473 2474 FileInputStream fis = null; 2475 try { 2476 fis = restrictionsFile.openRead(); 2477 XmlPullParser parser = Xml.newPullParser(); 2478 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2479 XmlUtils.nextElement(parser); 2480 if (parser.getEventType() != XmlPullParser.START_TAG) { 2481 Slog.e(LOG_TAG, "Unable to read restrictions file " 2482 + restrictionsFile.getBaseFile()); 2483 return restrictions; 2484 } 2485 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2486 readEntry(restrictions, values, parser); 2487 } 2488 } catch (IOException|XmlPullParserException e) { 2489 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2490 } finally { 2491 IoUtils.closeQuietly(fis); 2492 } 2493 return restrictions; 2494 } 2495 2496 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2497 XmlPullParser parser) throws XmlPullParserException, IOException { 2498 int type = parser.getEventType(); 2499 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2500 String key = parser.getAttributeValue(null, ATTR_KEY); 2501 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2502 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2503 if (multiple != null) { 2504 values.clear(); 2505 int count = Integer.parseInt(multiple); 2506 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2507 if (type == XmlPullParser.START_TAG 2508 && parser.getName().equals(TAG_VALUE)) { 2509 values.add(parser.nextText().trim()); 2510 count--; 2511 } 2512 } 2513 String [] valueStrings = new String[values.size()]; 2514 values.toArray(valueStrings); 2515 restrictions.putStringArray(key, valueStrings); 2516 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2517 restrictions.putBundle(key, readBundleEntry(parser, values)); 2518 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2519 final int outerDepth = parser.getDepth(); 2520 ArrayList<Bundle> bundleList = new ArrayList<>(); 2521 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2522 Bundle childBundle = readBundleEntry(parser, values); 2523 bundleList.add(childBundle); 2524 } 2525 restrictions.putParcelableArray(key, 2526 bundleList.toArray(new Bundle[bundleList.size()])); 2527 } else { 2528 String value = parser.nextText().trim(); 2529 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2530 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2531 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2532 restrictions.putInt(key, Integer.parseInt(value)); 2533 } else { 2534 restrictions.putString(key, value); 2535 } 2536 } 2537 } 2538 } 2539 2540 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2541 throws IOException, XmlPullParserException { 2542 Bundle childBundle = new Bundle(); 2543 final int outerDepth = parser.getDepth(); 2544 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2545 readEntry(childBundle, values, parser); 2546 } 2547 return childBundle; 2548 } 2549 2550 private void writeApplicationRestrictionsLP(String packageName, 2551 Bundle restrictions, int userId) { 2552 AtomicFile restrictionsFile = new AtomicFile( 2553 new File(Environment.getUserSystemDirectory(userId), 2554 packageToRestrictionsFileName(packageName))); 2555 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 2556 } 2557 2558 @VisibleForTesting 2559 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 2560 FileOutputStream fos = null; 2561 try { 2562 fos = restrictionsFile.startWrite(); 2563 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2564 2565 final XmlSerializer serializer = new FastXmlSerializer(); 2566 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2567 serializer.startDocument(null, true); 2568 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2569 2570 serializer.startTag(null, TAG_RESTRICTIONS); 2571 writeBundle(restrictions, serializer); 2572 serializer.endTag(null, TAG_RESTRICTIONS); 2573 2574 serializer.endDocument(); 2575 restrictionsFile.finishWrite(fos); 2576 } catch (Exception e) { 2577 restrictionsFile.failWrite(fos); 2578 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 2579 } 2580 } 2581 2582 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 2583 throws IOException { 2584 for (String key : restrictions.keySet()) { 2585 Object value = restrictions.get(key); 2586 serializer.startTag(null, TAG_ENTRY); 2587 serializer.attribute(null, ATTR_KEY, key); 2588 2589 if (value instanceof Boolean) { 2590 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 2591 serializer.text(value.toString()); 2592 } else if (value instanceof Integer) { 2593 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 2594 serializer.text(value.toString()); 2595 } else if (value == null || value instanceof String) { 2596 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 2597 serializer.text(value != null ? (String) value : ""); 2598 } else if (value instanceof Bundle) { 2599 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2600 writeBundle((Bundle) value, serializer); 2601 } else if (value instanceof Parcelable[]) { 2602 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 2603 Parcelable[] array = (Parcelable[]) value; 2604 for (Parcelable parcelable : array) { 2605 if (!(parcelable instanceof Bundle)) { 2606 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 2607 } 2608 serializer.startTag(null, TAG_ENTRY); 2609 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2610 writeBundle((Bundle) parcelable, serializer); 2611 serializer.endTag(null, TAG_ENTRY); 2612 } 2613 } else { 2614 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 2615 String[] values = (String[]) value; 2616 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 2617 for (String choice : values) { 2618 serializer.startTag(null, TAG_VALUE); 2619 serializer.text(choice != null ? choice : ""); 2620 serializer.endTag(null, TAG_VALUE); 2621 } 2622 } 2623 serializer.endTag(null, TAG_ENTRY); 2624 } 2625 } 2626 2627 @Override 2628 public int getUserSerialNumber(int userHandle) { 2629 synchronized (mUsersLock) { 2630 if (!exists(userHandle)) return -1; 2631 return getUserInfoLU(userHandle).serialNumber; 2632 } 2633 } 2634 2635 @Override 2636 public int getUserHandle(int userSerialNumber) { 2637 synchronized (mUsersLock) { 2638 for (int userId : mUserIds) { 2639 UserInfo info = getUserInfoLU(userId); 2640 if (info != null && info.serialNumber == userSerialNumber) return userId; 2641 } 2642 // Not found 2643 return -1; 2644 } 2645 } 2646 2647 @Override 2648 public long getUserCreationTime(int userHandle) { 2649 int callingUserId = UserHandle.getCallingUserId(); 2650 UserInfo userInfo = null; 2651 synchronized (mUsersLock) { 2652 if (callingUserId == userHandle) { 2653 userInfo = getUserInfoLU(userHandle); 2654 } else { 2655 UserInfo parent = getProfileParentLU(userHandle); 2656 if (parent != null && parent.id == callingUserId) { 2657 userInfo = getUserInfoLU(userHandle); 2658 } 2659 } 2660 } 2661 if (userInfo == null) { 2662 throw new SecurityException("userHandle can only be the calling user or a managed " 2663 + "profile associated with this user"); 2664 } 2665 return userInfo.creationTime; 2666 } 2667 2668 /** 2669 * Caches the list of user ids in an array, adjusting the array size when necessary. 2670 */ 2671 private void updateUserIds() { 2672 int num = 0; 2673 synchronized (mUsersLock) { 2674 final int userSize = mUsers.size(); 2675 for (int i = 0; i < userSize; i++) { 2676 if (!mUsers.valueAt(i).info.partial) { 2677 num++; 2678 } 2679 } 2680 final int[] newUsers = new int[num]; 2681 int n = 0; 2682 for (int i = 0; i < userSize; i++) { 2683 if (!mUsers.valueAt(i).info.partial) { 2684 newUsers[n++] = mUsers.keyAt(i); 2685 } 2686 } 2687 mUserIds = newUsers; 2688 } 2689 } 2690 2691 /** 2692 * Called right before a user is started. This gives us a chance to prepare 2693 * app storage and apply any user restrictions. 2694 */ 2695 public void onBeforeStartUser(int userId) { 2696 final int userSerial = getUserSerialNumber(userId); 2697 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 2698 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE); 2699 2700 if (userId != UserHandle.USER_SYSTEM) { 2701 synchronized (mRestrictionsLock) { 2702 applyUserRestrictionsLR(userId); 2703 } 2704 } 2705 } 2706 2707 /** 2708 * Called right before a user is unlocked. This gives us a chance to prepare 2709 * app storage. 2710 */ 2711 public void onBeforeUnlockUser(@UserIdInt int userId) { 2712 final int userSerial = getUserSerialNumber(userId); 2713 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 2714 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE); 2715 } 2716 2717 /** 2718 * Make a note of the last started time of a user and do some cleanup. 2719 * @param userId the user that was just foregrounded 2720 */ 2721 public void onUserLoggedIn(@UserIdInt int userId) { 2722 UserData userData = getUserDataNoChecks(userId); 2723 if (userData == null || userData.info.partial) { 2724 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 2725 return; 2726 } 2727 2728 final long now = System.currentTimeMillis(); 2729 if (now > EPOCH_PLUS_30_YEARS) { 2730 userData.info.lastLoggedInTime = now; 2731 } 2732 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 2733 scheduleWriteUser(userData); 2734 } 2735 2736 /** 2737 * Returns the next available user id, filling in any holes in the ids. 2738 * TODO: May not be a good idea to recycle ids, in case it results in confusion 2739 * for data and battery stats collection, or unexpected cross-talk. 2740 */ 2741 private int getNextAvailableId() { 2742 synchronized (mUsersLock) { 2743 int i = MIN_USER_ID; 2744 while (i < MAX_USER_ID) { 2745 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 2746 return i; 2747 } 2748 i++; 2749 } 2750 } 2751 throw new IllegalStateException("No user id available!"); 2752 } 2753 2754 private String packageToRestrictionsFileName(String packageName) { 2755 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 2756 } 2757 2758 /** 2759 * Enforce that serial number stored in user directory inode matches the 2760 * given expected value. Gracefully sets the serial number if currently 2761 * undefined. 2762 * 2763 * @throws IOException when problem extracting serial number, or serial 2764 * number is mismatched. 2765 */ 2766 public static void enforceSerialNumber(File file, int serialNumber) throws IOException { 2767 final int foundSerial = getSerialNumber(file); 2768 Slog.v(LOG_TAG, "Found " + file + " with serial number " + foundSerial); 2769 2770 if (foundSerial == -1) { 2771 Slog.d(LOG_TAG, "Serial number missing on " + file + "; assuming current is valid"); 2772 try { 2773 setSerialNumber(file, serialNumber); 2774 } catch (IOException e) { 2775 Slog.w(LOG_TAG, "Failed to set serial number on " + file, e); 2776 } 2777 2778 } else if (foundSerial != serialNumber) { 2779 throw new IOException("Found serial number " + foundSerial 2780 + " doesn't match expected " + serialNumber); 2781 } 2782 } 2783 2784 /** 2785 * Set serial number stored in user directory inode. 2786 * 2787 * @throws IOException if serial number was already set 2788 */ 2789 private static void setSerialNumber(File file, int serialNumber) 2790 throws IOException { 2791 try { 2792 final byte[] buf = Integer.toString(serialNumber).getBytes(StandardCharsets.UTF_8); 2793 Os.setxattr(file.getAbsolutePath(), XATTR_SERIAL, buf, OsConstants.XATTR_CREATE); 2794 } catch (ErrnoException e) { 2795 throw e.rethrowAsIOException(); 2796 } 2797 } 2798 2799 /** 2800 * Return serial number stored in user directory inode. 2801 * 2802 * @return parsed serial number, or -1 if not set 2803 */ 2804 private static int getSerialNumber(File file) throws IOException { 2805 try { 2806 final byte[] buf = new byte[256]; 2807 final int len = Os.getxattr(file.getAbsolutePath(), XATTR_SERIAL, buf); 2808 final String serial = new String(buf, 0, len); 2809 try { 2810 return Integer.parseInt(serial); 2811 } catch (NumberFormatException e) { 2812 throw new IOException("Bad serial number: " + serial); 2813 } 2814 } catch (ErrnoException e) { 2815 if (e.errno == OsConstants.ENODATA) { 2816 return -1; 2817 } else { 2818 throw e.rethrowAsIOException(); 2819 } 2820 } 2821 } 2822 2823 @Override 2824 public void setSeedAccountData(int userId, String accountName, String accountType, 2825 PersistableBundle accountOptions, boolean persist) { 2826 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 2827 synchronized (mPackagesLock) { 2828 final UserData userData; 2829 synchronized (mUsersLock) { 2830 userData = getUserDataLU(userId); 2831 if (userData == null) { 2832 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 2833 return; 2834 } 2835 userData.seedAccountName = accountName; 2836 userData.seedAccountType = accountType; 2837 userData.seedAccountOptions = accountOptions; 2838 userData.persistSeedData = persist; 2839 } 2840 if (persist) { 2841 writeUserLP(userData); 2842 } 2843 } 2844 } 2845 2846 @Override 2847 public String getSeedAccountName() throws RemoteException { 2848 checkManageUsersPermission("Cannot get seed account information"); 2849 synchronized (mUsersLock) { 2850 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2851 return userData.seedAccountName; 2852 } 2853 } 2854 2855 @Override 2856 public String getSeedAccountType() throws RemoteException { 2857 checkManageUsersPermission("Cannot get seed account information"); 2858 synchronized (mUsersLock) { 2859 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2860 return userData.seedAccountType; 2861 } 2862 } 2863 2864 @Override 2865 public PersistableBundle getSeedAccountOptions() throws RemoteException { 2866 checkManageUsersPermission("Cannot get seed account information"); 2867 synchronized (mUsersLock) { 2868 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2869 return userData.seedAccountOptions; 2870 } 2871 } 2872 2873 @Override 2874 public void clearSeedAccountData() throws RemoteException { 2875 checkManageUsersPermission("Cannot clear seed account information"); 2876 synchronized (mPackagesLock) { 2877 UserData userData; 2878 synchronized (mUsersLock) { 2879 userData = getUserDataLU(UserHandle.getCallingUserId()); 2880 if (userData == null) return; 2881 userData.clearSeedAccountData(); 2882 } 2883 writeUserLP(userData); 2884 } 2885 } 2886 2887 @Override 2888 public boolean someUserHasSeedAccount(String accountName, String accountType) 2889 throws RemoteException { 2890 checkManageUsersPermission("Cannot check seed account information"); 2891 synchronized (mUsersLock) { 2892 final int userSize = mUsers.size(); 2893 for (int i = 0; i < userSize; i++) { 2894 final UserData data = mUsers.valueAt(i); 2895 if (data.info.isInitialized()) continue; 2896 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 2897 continue; 2898 } 2899 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 2900 continue; 2901 } 2902 return true; 2903 } 2904 } 2905 return false; 2906 } 2907 2908 @Override 2909 public void onShellCommand(FileDescriptor in, FileDescriptor out, 2910 FileDescriptor err, String[] args, ResultReceiver resultReceiver) { 2911 (new Shell()).exec(this, in, out, err, args, resultReceiver); 2912 } 2913 2914 int onShellCommand(Shell shell, String cmd) { 2915 if (cmd == null) { 2916 return shell.handleDefaultCommands(cmd); 2917 } 2918 2919 final PrintWriter pw = shell.getOutPrintWriter(); 2920 try { 2921 switch(cmd) { 2922 case "list": 2923 return runList(pw); 2924 } 2925 } catch (RemoteException e) { 2926 pw.println("Remote exception: " + e); 2927 } 2928 return -1; 2929 } 2930 2931 private int runList(PrintWriter pw) throws RemoteException { 2932 final IActivityManager am = ActivityManagerNative.getDefault(); 2933 final List<UserInfo> users = getUsers(false); 2934 if (users == null) { 2935 pw.println("Error: couldn't get users"); 2936 return 1; 2937 } else { 2938 pw.println("Users:"); 2939 for (int i = 0; i < users.size(); i++) { 2940 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 2941 pw.println("\t" + users.get(i).toString() + running); 2942 } 2943 return 0; 2944 } 2945 } 2946 2947 @Override 2948 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2949 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 2950 != PackageManager.PERMISSION_GRANTED) { 2951 pw.println("Permission Denial: can't dump UserManager from from pid=" 2952 + Binder.getCallingPid() 2953 + ", uid=" + Binder.getCallingUid() 2954 + " without permission " 2955 + android.Manifest.permission.DUMP); 2956 return; 2957 } 2958 2959 long now = System.currentTimeMillis(); 2960 StringBuilder sb = new StringBuilder(); 2961 synchronized (mPackagesLock) { 2962 synchronized (mUsersLock) { 2963 pw.println("Users:"); 2964 for (int i = 0; i < mUsers.size(); i++) { 2965 UserData userData = mUsers.valueAt(i); 2966 if (userData == null) { 2967 continue; 2968 } 2969 UserInfo userInfo = userData.info; 2970 final int userId = userInfo.id; 2971 pw.print(" "); pw.print(userInfo); 2972 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 2973 if (mRemovingUserIds.get(userId)) { 2974 pw.print(" <removing> "); 2975 } 2976 if (userInfo.partial) { 2977 pw.print(" <partial>"); 2978 } 2979 pw.println(); 2980 pw.print(" Created: "); 2981 if (userInfo.creationTime == 0) { 2982 pw.println("<unknown>"); 2983 } else { 2984 sb.setLength(0); 2985 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 2986 sb.append(" ago"); 2987 pw.println(sb); 2988 } 2989 pw.print(" Last logged in: "); 2990 if (userInfo.lastLoggedInTime == 0) { 2991 pw.println("<unknown>"); 2992 } else { 2993 sb.setLength(0); 2994 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 2995 sb.append(" ago"); 2996 pw.println(sb); 2997 } 2998 pw.print(" Last logged in fingerprint: "); 2999 pw.println(userInfo.lastLoggedInFingerprint); 3000 pw.print(" Has profile owner: "); 3001 pw.println(mIsUserManaged.get(userId)); 3002 pw.println(" Restrictions:"); 3003 synchronized (mRestrictionsLock) { 3004 UserRestrictionsUtils.dumpRestrictions( 3005 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 3006 pw.println(" Device policy local restrictions:"); 3007 UserRestrictionsUtils.dumpRestrictions( 3008 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 3009 pw.println(" Effective restrictions:"); 3010 UserRestrictionsUtils.dumpRestrictions( 3011 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 3012 } 3013 3014 if (userData.account != null) { 3015 pw.print(" Account name: " + userData.account); 3016 pw.println(); 3017 } 3018 3019 if (userData.seedAccountName != null) { 3020 pw.print(" Seed account name: " + userData.seedAccountName); 3021 pw.println(); 3022 if (userData.seedAccountType != null) { 3023 pw.print(" account type: " + userData.seedAccountType); 3024 pw.println(); 3025 } 3026 if (userData.seedAccountOptions != null) { 3027 pw.print(" account options exist"); 3028 pw.println(); 3029 } 3030 } 3031 } 3032 } 3033 pw.println(); 3034 pw.println(" Device policy global restrictions:"); 3035 synchronized (mRestrictionsLock) { 3036 UserRestrictionsUtils 3037 .dumpRestrictions(pw, " ", mDevicePolicyGlobalUserRestrictions); 3038 } 3039 pw.println(); 3040 pw.println(" Global restrictions owner id:" + mGlobalRestrictionOwnerUserId); 3041 pw.println(); 3042 pw.println(" Guest restrictions:"); 3043 synchronized (mGuestRestrictions) { 3044 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 3045 } 3046 synchronized (mUsersLock) { 3047 pw.println(); 3048 pw.println(" Device managed: " + mIsDeviceManaged); 3049 } 3050 // Dump some capabilities 3051 pw.println(); 3052 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 3053 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 3054 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 3055 com.android.internal.R.bool.config_guestUserEphemeral)); 3056 } 3057 } 3058 3059 final class MainHandler extends Handler { 3060 3061 @Override 3062 public void handleMessage(Message msg) { 3063 switch (msg.what) { 3064 case WRITE_USER_MSG: 3065 removeMessages(WRITE_USER_MSG, msg.obj); 3066 synchronized (mPackagesLock) { 3067 int userId = ((UserData) msg.obj).info.id; 3068 UserData userData = getUserDataNoChecks(userId); 3069 if (userData != null) { 3070 writeUserLP(userData); 3071 } 3072 } 3073 } 3074 } 3075 } 3076 3077 /** 3078 * @param userId 3079 * @return whether the user has been initialized yet 3080 */ 3081 boolean isInitialized(int userId) { 3082 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3083 } 3084 3085 private class LocalService extends UserManagerInternal { 3086 @Override 3087 public void setDevicePolicyUserRestrictions(int userId, @NonNull Bundle localRestrictions, 3088 @Nullable Bundle globalRestrictions) { 3089 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, localRestrictions, 3090 globalRestrictions); 3091 } 3092 3093 @Override 3094 public Bundle getBaseUserRestrictions(int userId) { 3095 synchronized (mRestrictionsLock) { 3096 return mBaseUserRestrictions.get(userId); 3097 } 3098 } 3099 3100 @Override 3101 public void setBaseUserRestrictionsByDpmsForMigration( 3102 int userId, Bundle baseRestrictions) { 3103 synchronized (mRestrictionsLock) { 3104 mBaseUserRestrictions.put(userId, new Bundle(baseRestrictions)); 3105 invalidateEffectiveUserRestrictionsLR(userId); 3106 } 3107 3108 final UserData userData = getUserDataNoChecks(userId); 3109 synchronized (mPackagesLock) { 3110 if (userData != null) { 3111 writeUserLP(userData); 3112 } else { 3113 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3114 } 3115 } 3116 } 3117 3118 @Override 3119 public boolean getUserRestriction(int userId, String key) { 3120 return getUserRestrictions(userId).getBoolean(key); 3121 } 3122 3123 @Override 3124 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3125 synchronized (mUserRestrictionsListeners) { 3126 mUserRestrictionsListeners.add(listener); 3127 } 3128 } 3129 3130 @Override 3131 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3132 synchronized (mUserRestrictionsListeners) { 3133 mUserRestrictionsListeners.remove(listener); 3134 } 3135 } 3136 3137 @Override 3138 public void setDeviceManaged(boolean isManaged) { 3139 synchronized (mUsersLock) { 3140 mIsDeviceManaged = isManaged; 3141 } 3142 } 3143 3144 @Override 3145 public void setUserManaged(int userId, boolean isManaged) { 3146 synchronized (mUsersLock) { 3147 mIsUserManaged.put(userId, isManaged); 3148 } 3149 } 3150 3151 @Override 3152 public void setUserIcon(int userId, Bitmap bitmap) { 3153 long ident = Binder.clearCallingIdentity(); 3154 try { 3155 synchronized (mPackagesLock) { 3156 UserData userData = getUserDataNoChecks(userId); 3157 if (userData == null || userData.info.partial) { 3158 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3159 return; 3160 } 3161 writeBitmapLP(userData.info, bitmap); 3162 writeUserLP(userData); 3163 } 3164 sendUserInfoChangedBroadcast(userId); 3165 } finally { 3166 Binder.restoreCallingIdentity(ident); 3167 } 3168 } 3169 3170 @Override 3171 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3172 synchronized (mUsersLock) { 3173 mForceEphemeralUsers = forceEphemeralUsers; 3174 } 3175 } 3176 3177 @Override 3178 public void removeAllUsers() { 3179 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3180 // Remove the non-system users straight away. 3181 removeNonSystemUsers(); 3182 } else { 3183 // Switch to the system user first and then remove the other users. 3184 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3185 @Override 3186 public void onReceive(Context context, Intent intent) { 3187 int userId = 3188 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3189 if (userId != UserHandle.USER_SYSTEM) { 3190 return; 3191 } 3192 mContext.unregisterReceiver(this); 3193 removeNonSystemUsers(); 3194 } 3195 }; 3196 IntentFilter userSwitchedFilter = new IntentFilter(); 3197 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3198 mContext.registerReceiver( 3199 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3200 3201 // Switch to the system user. 3202 ActivityManager am = 3203 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3204 am.switchUser(UserHandle.USER_SYSTEM); 3205 } 3206 } 3207 3208 @Override 3209 public void onEphemeralUserStop(int userId) { 3210 synchronized (mUsersLock) { 3211 UserInfo userInfo = getUserInfoLU(userId); 3212 if (userInfo != null && userInfo.isEphemeral()) { 3213 // Do not allow switching back to the ephemeral user again as the user is going 3214 // to be deleted. 3215 userInfo.flags |= UserInfo.FLAG_DISABLED; 3216 if (userInfo.isGuest()) { 3217 // Indicate that the guest will be deleted after it stops. 3218 userInfo.guestToRemove = true; 3219 } 3220 } 3221 } 3222 } 3223 3224 @Override 3225 public UserInfo createUserEvenWhenDisallowed(String name, int flags) { 3226 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL); 3227 // Keep this in sync with UserManager.createUser 3228 if (user != null && !user.isAdmin()) { 3229 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3230 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3231 } 3232 return user; 3233 } 3234 } 3235 3236 /* Remove all the users except of the system one. */ 3237 private void removeNonSystemUsers() { 3238 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3239 synchronized (mUsersLock) { 3240 final int userSize = mUsers.size(); 3241 for (int i = 0; i < userSize; i++) { 3242 UserInfo ui = mUsers.valueAt(i).info; 3243 if (ui.id != UserHandle.USER_SYSTEM) { 3244 usersToRemove.add(ui); 3245 } 3246 } 3247 } 3248 for (UserInfo ui: usersToRemove) { 3249 removeUser(ui.id); 3250 } 3251 } 3252 3253 private class Shell extends ShellCommand { 3254 @Override 3255 public int onCommand(String cmd) { 3256 return onShellCommand(this, cmd); 3257 } 3258 3259 @Override 3260 public void onHelp() { 3261 final PrintWriter pw = getOutPrintWriter(); 3262 pw.println("User manager (user) commands:"); 3263 pw.println(" help"); 3264 pw.println(" Print this help text."); 3265 pw.println(""); 3266 pw.println(" list"); 3267 pw.println(" Prints all users on the system."); 3268 } 3269 } 3270 3271 private static void debug(String message) { 3272 Log.d(LOG_TAG, message + 3273 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3274 } 3275} 3276