UserManagerService.java revision 8a5536d53ef1eea92e1a2b997744a27ce904134c
1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.pm; 18 19import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS; 20import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; 21 22import android.Manifest; 23import android.annotation.NonNull; 24import android.annotation.Nullable; 25import android.annotation.UserIdInt; 26import android.app.Activity; 27import android.app.ActivityManager; 28import android.app.ActivityManagerInternal; 29import android.app.ActivityManagerNative; 30import android.app.IActivityManager; 31import android.app.IStopUserCallback; 32import android.app.KeyguardManager; 33import android.content.BroadcastReceiver; 34import android.content.Context; 35import android.content.Intent; 36import android.content.IntentFilter; 37import android.content.IntentSender; 38import android.content.pm.PackageManager; 39import android.content.pm.PackageManager.NameNotFoundException; 40import android.content.pm.UserInfo; 41import android.content.res.Resources; 42import android.graphics.Bitmap; 43import android.os.Binder; 44import android.os.Build; 45import android.os.Bundle; 46import android.os.Debug; 47import android.os.Environment; 48import android.os.FileUtils; 49import android.os.Handler; 50import android.os.IBinder; 51import android.os.IUserManager; 52import android.os.Message; 53import android.os.ParcelFileDescriptor; 54import android.os.Parcelable; 55import android.os.PersistableBundle; 56import android.os.Process; 57import android.os.RemoteException; 58import android.os.ResultReceiver; 59import android.os.SELinux; 60import android.os.ServiceManager; 61import android.os.ShellCommand; 62import android.os.UserHandle; 63import android.os.UserManager; 64import android.os.UserManagerInternal; 65import android.os.UserManagerInternal.UserRestrictionsListener; 66import android.os.storage.StorageManager; 67import android.system.ErrnoException; 68import android.system.Os; 69import android.system.OsConstants; 70import android.util.AtomicFile; 71import android.util.IntArray; 72import android.util.Log; 73import android.util.Slog; 74import android.util.SparseArray; 75import android.util.SparseBooleanArray; 76import android.util.SparseIntArray; 77import android.util.TimeUtils; 78import android.util.Xml; 79 80import com.android.internal.annotations.GuardedBy; 81import com.android.internal.annotations.VisibleForTesting; 82import com.android.internal.app.IAppOpsService; 83import com.android.internal.logging.MetricsLogger; 84import com.android.internal.util.FastXmlSerializer; 85import com.android.internal.util.Preconditions; 86import com.android.internal.util.XmlUtils; 87import com.android.internal.widget.LockPatternUtils; 88import com.android.server.LocalServices; 89import com.android.server.am.UserState; 90 91import libcore.io.IoUtils; 92import libcore.util.Objects; 93 94import org.xmlpull.v1.XmlPullParser; 95import org.xmlpull.v1.XmlPullParserException; 96import org.xmlpull.v1.XmlSerializer; 97 98import java.io.BufferedOutputStream; 99import java.io.File; 100import java.io.FileDescriptor; 101import java.io.FileInputStream; 102import java.io.FileNotFoundException; 103import java.io.FileOutputStream; 104import java.io.IOException; 105import java.io.PrintWriter; 106import java.nio.charset.StandardCharsets; 107import java.util.ArrayList; 108import java.util.List; 109 110/** 111 * Service for {@link UserManager}. 112 * 113 * Method naming convention: 114 * <ul> 115 * <li> Methods suffixed with "LP" should be called within the {@link #mPackagesLock} lock. 116 * <li> Methods suffixed with "LR" should be called within the {@link #mRestrictionsLock} lock. 117 * <li> Methods suffixed with "LU" should be called within the {@link #mUsersLock} lock. 118 * </ul> 119 */ 120public class UserManagerService extends IUserManager.Stub { 121 private static final String LOG_TAG = "UserManagerService"; 122 static final boolean DBG = false; // DO NOT SUBMIT WITH TRUE 123 private static final boolean DBG_WITH_STACKTRACE = false; // DO NOT SUBMIT WITH TRUE 124 125 private static final String TAG_NAME = "name"; 126 private static final String TAG_ACCOUNT = "account"; 127 private static final String ATTR_FLAGS = "flags"; 128 private static final String ATTR_ICON_PATH = "icon"; 129 private static final String ATTR_ID = "id"; 130 private static final String ATTR_CREATION_TIME = "created"; 131 private static final String ATTR_LAST_LOGGED_IN_TIME = "lastLoggedIn"; 132 private static final String ATTR_LAST_LOGGED_IN_FINGERPRINT = "lastLoggedInFingerprint"; 133 private static final String ATTR_SERIAL_NO = "serialNumber"; 134 private static final String ATTR_NEXT_SERIAL_NO = "nextSerialNumber"; 135 private static final String ATTR_PARTIAL = "partial"; 136 private static final String ATTR_GUEST_TO_REMOVE = "guestToRemove"; 137 private static final String ATTR_USER_VERSION = "version"; 138 private static final String ATTR_PROFILE_GROUP_ID = "profileGroupId"; 139 private static final String ATTR_RESTRICTED_PROFILE_PARENT_ID = "restrictedProfileParentId"; 140 private static final String ATTR_SEED_ACCOUNT_NAME = "seedAccountName"; 141 private static final String ATTR_SEED_ACCOUNT_TYPE = "seedAccountType"; 142 private static final String TAG_GUEST_RESTRICTIONS = "guestRestrictions"; 143 private static final String TAG_USERS = "users"; 144 private static final String TAG_USER = "user"; 145 private static final String TAG_RESTRICTIONS = "restrictions"; 146 private static final String TAG_DEVICE_POLICY_RESTRICTIONS = "device_policy_restrictions"; 147 private static final String TAG_GLOBAL_RESTRICTION_OWNER_ID = "globalRestrictionOwnerUserId"; 148 private static final String TAG_ENTRY = "entry"; 149 private static final String TAG_VALUE = "value"; 150 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 151 private static final String ATTR_KEY = "key"; 152 private static final String ATTR_VALUE_TYPE = "type"; 153 private static final String ATTR_MULTIPLE = "m"; 154 155 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 156 private static final String ATTR_TYPE_STRING = "s"; 157 private static final String ATTR_TYPE_BOOLEAN = "b"; 158 private static final String ATTR_TYPE_INTEGER = "i"; 159 private static final String ATTR_TYPE_BUNDLE = "B"; 160 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 161 162 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 163 private static final String USER_LIST_FILENAME = "userlist.xml"; 164 private static final String USER_PHOTO_FILENAME = "photo.png"; 165 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 166 167 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 168 private static final String XML_SUFFIX = ".xml"; 169 170 private static final int MIN_USER_ID = 10; 171 // We need to keep process uid within Integer.MAX_VALUE. 172 private static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 173 174 private static final int USER_VERSION = 6; 175 176 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 177 178 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 179 // without first making sure that the rest of the framework is prepared for it. 180 private static final int MAX_MANAGED_PROFILES = 1; 181 182 static final int WRITE_USER_MSG = 1; 183 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 184 185 private static final String XATTR_SERIAL = "user.serial"; 186 187 // Tron counters 188 private static final String TRON_GUEST_CREATED = "users_guest_created"; 189 private static final String TRON_USER_CREATED = "users_user_created"; 190 191 private final Context mContext; 192 private final PackageManagerService mPm; 193 private final Object mPackagesLock; 194 // Short-term lock for internal state, when interaction/sync with PM is not required 195 private final Object mUsersLock = new Object(); 196 private final Object mRestrictionsLock = new Object(); 197 198 private final Handler mHandler; 199 200 private final File mUsersDir; 201 private final File mUserListFile; 202 203 private static final IBinder mUserRestriconToken = new Binder(); 204 205 /** 206 * User-related information that is used for persisting to flash. Only UserInfo is 207 * directly exposed to other system apps. 208 */ 209 private static class UserData { 210 // Basic user information and properties 211 UserInfo info; 212 // Account name used when there is a strong association between a user and an account 213 String account; 214 // Account information for seeding into a newly created user. This could also be 215 // used for login validation for an existing user, for updating their credentials. 216 // In the latter case, data may not need to be persisted as it is only valid for the 217 // current login session. 218 String seedAccountName; 219 String seedAccountType; 220 PersistableBundle seedAccountOptions; 221 // Whether to perist the seed account information to be available after a boot 222 boolean persistSeedData; 223 224 void clearSeedAccountData() { 225 seedAccountName = null; 226 seedAccountType = null; 227 seedAccountOptions = null; 228 persistSeedData = false; 229 } 230 } 231 232 @GuardedBy("mUsersLock") 233 private final SparseArray<UserData> mUsers = new SparseArray<>(); 234 235 /** 236 * User restrictions set via UserManager. This doesn't include restrictions set by 237 * device owner / profile owners. 238 * 239 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 240 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 241 * maybe shared between {@link #mBaseUserRestrictions} and 242 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 243 * (Otherwise we won't be able to detect what restrictions have changed in 244 * {@link #updateUserRestrictionsInternalLR}. 245 */ 246 @GuardedBy("mRestrictionsLock") 247 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 248 249 /** 250 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 251 * with device / profile owner restrictions. We'll initialize it lazily; use 252 * {@link #getEffectiveUserRestrictions} to access it. 253 * 254 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 255 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 256 * maybe shared between {@link #mBaseUserRestrictions} and 257 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 258 * (Otherwise we won't be able to detect what restrictions have changed in 259 * {@link #updateUserRestrictionsInternalLR}. 260 */ 261 @GuardedBy("mRestrictionsLock") 262 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 263 264 /** 265 * User restrictions that have already been applied in 266 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 267 * that have changed since the last 268 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 269 */ 270 @GuardedBy("mRestrictionsLock") 271 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 272 273 /** 274 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 275 * that should be applied to all users, including guests. 276 */ 277 @GuardedBy("mRestrictionsLock") 278 private Bundle mDevicePolicyGlobalUserRestrictions; 279 280 /** 281 * Id of the user that set global restrictions. 282 */ 283 @GuardedBy("mRestrictionsLock") 284 private int mGlobalRestrictionOwnerUserId = UserHandle.USER_NULL; 285 286 /** 287 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 288 * for each user. 289 */ 290 @GuardedBy("mRestrictionsLock") 291 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 292 293 @GuardedBy("mGuestRestrictions") 294 private final Bundle mGuestRestrictions = new Bundle(); 295 296 /** 297 * Set of user IDs being actively removed. Removed IDs linger in this set 298 * for several seconds to work around a VFS caching issue. 299 */ 300 @GuardedBy("mUsersLock") 301 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 302 303 @GuardedBy("mUsersLock") 304 private int[] mUserIds; 305 @GuardedBy("mPackagesLock") 306 private int mNextSerialNumber; 307 private int mUserVersion = 0; 308 309 private IAppOpsService mAppOpsService; 310 311 private final LocalService mLocalService; 312 313 @GuardedBy("mUsersLock") 314 private boolean mIsDeviceManaged; 315 316 @GuardedBy("mUsersLock") 317 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 318 319 @GuardedBy("mUserRestrictionsListeners") 320 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 321 new ArrayList<>(); 322 323 private final LockPatternUtils mLockPatternUtils; 324 325 /** 326 * Whether all users should be created ephemeral. 327 */ 328 @GuardedBy("mUsersLock") 329 private boolean mForceEphemeralUsers; 330 331 @GuardedBy("mUserStates") 332 private final SparseIntArray mUserStates = new SparseIntArray(); 333 334 private static UserManagerService sInstance; 335 336 public static UserManagerService getInstance() { 337 synchronized (UserManagerService.class) { 338 return sInstance; 339 } 340 } 341 342 @VisibleForTesting 343 UserManagerService(File dataDir) { 344 this(null, null, new Object(), dataDir); 345 } 346 347 /** 348 * Called by package manager to create the service. This is closely 349 * associated with the package manager, and the given lock is the 350 * package manager's own lock. 351 */ 352 UserManagerService(Context context, PackageManagerService pm, Object packagesLock) { 353 this(context, pm, packagesLock, Environment.getDataDirectory()); 354 } 355 356 private UserManagerService(Context context, PackageManagerService pm, 357 Object packagesLock, File dataDir) { 358 mContext = context; 359 mPm = pm; 360 mPackagesLock = packagesLock; 361 mHandler = new MainHandler(); 362 synchronized (mPackagesLock) { 363 mUsersDir = new File(dataDir, USER_INFO_DIR); 364 mUsersDir.mkdirs(); 365 // Make zeroth user directory, for services to migrate their files to that location 366 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 367 userZeroDir.mkdirs(); 368 FileUtils.setPermissions(mUsersDir.toString(), 369 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 370 -1, -1); 371 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 372 initDefaultGuestRestrictions(); 373 readUserListLP(); 374 sInstance = this; 375 } 376 mLocalService = new LocalService(); 377 LocalServices.addService(UserManagerInternal.class, mLocalService); 378 mLockPatternUtils = new LockPatternUtils(mContext); 379 mUserStates.put(UserHandle.USER_SYSTEM, UserState.STATE_BOOTING); 380 } 381 382 void systemReady() { 383 // Prune out any partially created, partially removed and ephemeral users. 384 ArrayList<UserInfo> partials = new ArrayList<>(); 385 synchronized (mUsersLock) { 386 final int userSize = mUsers.size(); 387 for (int i = 0; i < userSize; i++) { 388 UserInfo ui = mUsers.valueAt(i).info; 389 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 390 partials.add(ui); 391 } 392 } 393 } 394 final int partialsSize = partials.size(); 395 for (int i = 0; i < partialsSize; i++) { 396 UserInfo ui = partials.get(i); 397 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 398 + " (name=" + ui.name + ")"); 399 removeUserState(ui.id); 400 } 401 402 mAppOpsService = IAppOpsService.Stub.asInterface( 403 ServiceManager.getService(Context.APP_OPS_SERVICE)); 404 405 synchronized (mRestrictionsLock) { 406 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 407 } 408 409 UserInfo currentGuestUser = findCurrentGuestUser(); 410 if (currentGuestUser != null && !hasUserRestriction( 411 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 412 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 413 // to it, in case this guest was created in a previous version where this 414 // user restriction was not a default guest restriction. 415 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 416 } 417 } 418 419 @Override 420 public String getUserAccount(int userId) { 421 checkManageUserAndAcrossUsersFullPermission("get user account"); 422 synchronized (mUsersLock) { 423 return mUsers.get(userId).account; 424 } 425 } 426 427 @Override 428 public void setUserAccount(int userId, String accountName) { 429 checkManageUserAndAcrossUsersFullPermission("set user account"); 430 UserData userToUpdate = null; 431 synchronized (mPackagesLock) { 432 synchronized (mUsersLock) { 433 final UserData userData = mUsers.get(userId); 434 if (userData == null) { 435 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 436 return; 437 } 438 String currentAccount = userData.account; 439 if (!Objects.equal(currentAccount, accountName)) { 440 userData.account = accountName; 441 userToUpdate = userData; 442 } 443 } 444 445 if (userToUpdate != null) { 446 writeUserLP(userToUpdate); 447 } 448 } 449 } 450 451 @Override 452 public UserInfo getPrimaryUser() { 453 checkManageUsersPermission("query users"); 454 synchronized (mUsersLock) { 455 final int userSize = mUsers.size(); 456 for (int i = 0; i < userSize; i++) { 457 UserInfo ui = mUsers.valueAt(i).info; 458 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 459 return ui; 460 } 461 } 462 } 463 return null; 464 } 465 466 @Override 467 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 468 checkManageUsersPermission("query users"); 469 synchronized (mUsersLock) { 470 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 471 final int userSize = mUsers.size(); 472 for (int i = 0; i < userSize; i++) { 473 UserInfo ui = mUsers.valueAt(i).info; 474 if (ui.partial) { 475 continue; 476 } 477 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 478 users.add(userWithName(ui)); 479 } 480 } 481 return users; 482 } 483 } 484 485 @Override 486 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 487 boolean returnFullInfo = true; 488 if (userId != UserHandle.getCallingUserId()) { 489 checkManageUsersPermission("getting profiles related to user " + userId); 490 } else { 491 returnFullInfo = hasManageUsersPermission(); 492 } 493 final long ident = Binder.clearCallingIdentity(); 494 try { 495 synchronized (mUsersLock) { 496 return getProfilesLU(userId, enabledOnly, returnFullInfo); 497 } 498 } finally { 499 Binder.restoreCallingIdentity(ident); 500 } 501 } 502 503 @Override 504 public int[] getProfileIds(int userId, boolean enabledOnly) { 505 if (userId != UserHandle.getCallingUserId()) { 506 checkManageUsersPermission("getting profiles related to user " + userId); 507 } 508 final long ident = Binder.clearCallingIdentity(); 509 try { 510 synchronized (mUsersLock) { 511 return getProfileIdsLU(userId, enabledOnly).toArray(); 512 } 513 } finally { 514 Binder.restoreCallingIdentity(ident); 515 } 516 } 517 518 /** Assume permissions already checked and caller's identity cleared */ 519 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 520 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 521 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 522 for (int i = 0; i < profileIds.size(); i++) { 523 int profileId = profileIds.get(i); 524 UserInfo userInfo = mUsers.get(profileId).info; 525 // If full info is not required - clear PII data to prevent 3P apps from reading it 526 if (!fullInfo) { 527 userInfo = new UserInfo(userInfo); 528 userInfo.name = null; 529 userInfo.iconPath = null; 530 } else { 531 userInfo = userWithName(userInfo); 532 } 533 users.add(userInfo); 534 } 535 return users; 536 } 537 538 /** 539 * Assume permissions already checked and caller's identity cleared 540 */ 541 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 542 UserInfo user = getUserInfoLU(userId); 543 IntArray result = new IntArray(mUsers.size()); 544 if (user == null) { 545 // Probably a dying user 546 return result; 547 } 548 final int userSize = mUsers.size(); 549 for (int i = 0; i < userSize; i++) { 550 UserInfo profile = mUsers.valueAt(i).info; 551 if (!isProfileOf(user, profile)) { 552 continue; 553 } 554 if (enabledOnly && !profile.isEnabled()) { 555 continue; 556 } 557 if (mRemovingUserIds.get(profile.id)) { 558 continue; 559 } 560 if (profile.partial) { 561 continue; 562 } 563 result.add(profile.id); 564 } 565 return result; 566 } 567 568 @Override 569 public int getCredentialOwnerProfile(int userHandle) { 570 checkManageUsersPermission("get the credential owner"); 571 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 572 synchronized (mUsersLock) { 573 UserInfo profileParent = getProfileParentLU(userHandle); 574 if (profileParent != null) { 575 return profileParent.id; 576 } 577 } 578 } 579 580 return userHandle; 581 } 582 583 @Override 584 public boolean isSameProfileGroup(int userId, int otherUserId) { 585 if (userId == otherUserId) return true; 586 checkManageUsersPermission("check if in the same profile group"); 587 synchronized (mPackagesLock) { 588 return isSameProfileGroupLP(userId, otherUserId); 589 } 590 } 591 592 private boolean isSameProfileGroupLP(int userId, int otherUserId) { 593 synchronized (mUsersLock) { 594 UserInfo userInfo = getUserInfoLU(userId); 595 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 596 return false; 597 } 598 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 599 if (otherUserInfo == null 600 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 601 return false; 602 } 603 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 604 } 605 } 606 607 @Override 608 public UserInfo getProfileParent(int userHandle) { 609 checkManageUsersPermission("get the profile parent"); 610 synchronized (mUsersLock) { 611 return getProfileParentLU(userHandle); 612 } 613 } 614 615 private UserInfo getProfileParentLU(int userHandle) { 616 UserInfo profile = getUserInfoLU(userHandle); 617 if (profile == null) { 618 return null; 619 } 620 int parentUserId = profile.profileGroupId; 621 if (parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 622 return null; 623 } else { 624 return getUserInfoLU(parentUserId); 625 } 626 } 627 628 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 629 return user.id == profile.id || 630 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 631 && user.profileGroupId == profile.profileGroupId); 632 } 633 634 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 635 UserHandle parentHandle, boolean inQuietMode) { 636 Intent intent = new Intent(); 637 if (inQuietMode) { 638 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 639 } else { 640 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 641 } 642 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 643 intent.putExtra(Intent.EXTRA_USER, profileHandle); 644 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 645 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 646 mContext.sendBroadcastAsUser(intent, parentHandle); 647 } 648 649 @Override 650 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { 651 checkManageUsersPermission("silence profile"); 652 boolean changed = false; 653 UserInfo profile, parent; 654 synchronized (mPackagesLock) { 655 synchronized (mUsersLock) { 656 profile = getUserInfoLU(userHandle); 657 parent = getProfileParentLU(userHandle); 658 659 } 660 if (profile == null || !profile.isManagedProfile()) { 661 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 662 } 663 if (profile.isQuietModeEnabled() != enableQuietMode) { 664 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 665 writeUserLP(getUserDataLU(profile.id)); 666 changed = true; 667 } 668 } 669 if (changed) { 670 long identity = Binder.clearCallingIdentity(); 671 try { 672 if (enableQuietMode) { 673 LocalServices.getService(ActivityManagerInternal.class) 674 .killForegroundAppsForUser(userHandle); 675 ActivityManagerNative.getDefault().stopUser(userHandle, /* force */true, null); 676 } else { 677 ActivityManagerNative.getDefault().startUserInBackground(userHandle); 678 } 679 } catch (RemoteException e) { 680 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 681 } finally { 682 Binder.restoreCallingIdentity(identity); 683 } 684 685 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 686 enableQuietMode); 687 } 688 } 689 690 @Override 691 public boolean isQuietModeEnabled(int userHandle) { 692 synchronized (mPackagesLock) { 693 UserInfo info; 694 synchronized (mUsersLock) { 695 info = getUserInfoLU(userHandle); 696 } 697 if (info == null || !info.isManagedProfile()) { 698 return false; 699 } 700 return info.isQuietModeEnabled(); 701 } 702 } 703 704 @Override 705 public boolean trySetQuietModeDisabled(int userHandle, IntentSender target) { 706 if (StorageManager.isUserKeyUnlocked(userHandle) 707 || !mLockPatternUtils.isSecure(userHandle)) { 708 // if the user is already unlocked, no need to show a profile challenge 709 setQuietModeEnabled(userHandle, false); 710 return true; 711 } 712 713 long identity = Binder.clearCallingIdentity(); 714 try { 715 // otherwise, we show a profile challenge to trigger decryption of the user 716 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 717 Context.KEYGUARD_SERVICE); 718 // We should use userHandle not credentialOwnerUserId here, as even if it is unified 719 // lock, confirm screenlock page will know and show personal challenge, and unlock 720 // work profile when personal challenge is correct 721 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 722 userHandle); 723 if (unlockIntent == null) { 724 return false; 725 } 726 if (target != null) { 727 unlockIntent.putExtra(Intent.EXTRA_INTENT, target); 728 } 729 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 730 mContext.startActivity(unlockIntent); 731 } finally { 732 Binder.restoreCallingIdentity(identity); 733 } 734 return false; 735 } 736 737 @Override 738 public void setUserEnabled(int userId) { 739 checkManageUsersPermission("enable user"); 740 synchronized (mPackagesLock) { 741 UserInfo info; 742 synchronized (mUsersLock) { 743 info = getUserInfoLU(userId); 744 } 745 if (info != null && !info.isEnabled()) { 746 info.flags ^= UserInfo.FLAG_DISABLED; 747 writeUserLP(getUserDataLU(info.id)); 748 } 749 } 750 } 751 752 @Override 753 public UserInfo getUserInfo(int userId) { 754 checkManageUsersPermission("query user"); 755 synchronized (mUsersLock) { 756 return userWithName(getUserInfoLU(userId)); 757 } 758 } 759 760 /** 761 * Returns a UserInfo object with the name filled in, for Owner, or the original 762 * if the name is already set. 763 */ 764 private UserInfo userWithName(UserInfo orig) { 765 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 766 UserInfo withName = new UserInfo(orig); 767 withName.name = getOwnerName(); 768 return withName; 769 } else { 770 return orig; 771 } 772 } 773 774 @Override 775 public boolean isManagedProfile(int userId) { 776 int callingUserId = UserHandle.getCallingUserId(); 777 if (callingUserId != userId && !hasManageUsersPermission()) { 778 synchronized (mPackagesLock) { 779 if (!isSameProfileGroupLP(callingUserId, userId)) { 780 throw new SecurityException( 781 "You need MANAGE_USERS permission to: check if specified user a " + 782 "managed profile outside your profile group"); 783 } 784 } 785 } 786 synchronized (mUsersLock) { 787 UserInfo userInfo = getUserInfoLU(userId); 788 return userInfo != null && userInfo.isManagedProfile(); 789 } 790 } 791 792 @Override 793 public boolean isRestricted() { 794 synchronized (mUsersLock) { 795 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 796 } 797 } 798 799 @Override 800 public boolean canHaveRestrictedProfile(int userId) { 801 checkManageUsersPermission("canHaveRestrictedProfile"); 802 synchronized (mUsersLock) { 803 final UserInfo userInfo = getUserInfoLU(userId); 804 if (userInfo == null || !userInfo.canHaveProfile()) { 805 return false; 806 } 807 if (!userInfo.isAdmin()) { 808 return false; 809 } 810 // restricted profile can be created if there is no DO set and the admin user has no PO; 811 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 812 } 813 } 814 815 /* 816 * Should be locked on mUsers before calling this. 817 */ 818 private UserInfo getUserInfoLU(int userId) { 819 final UserData userData = mUsers.get(userId); 820 // If it is partial and not in the process of being removed, return as unknown user. 821 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 822 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 823 return null; 824 } 825 return userData != null ? userData.info : null; 826 } 827 828 private UserData getUserDataLU(int userId) { 829 final UserData userData = mUsers.get(userId); 830 // If it is partial and not in the process of being removed, return as unknown user. 831 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 832 return null; 833 } 834 return userData; 835 } 836 837 /** 838 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 839 * <p>No permissions checking or any addition checks are made</p> 840 */ 841 private UserInfo getUserInfoNoChecks(int userId) { 842 synchronized (mUsersLock) { 843 final UserData userData = mUsers.get(userId); 844 return userData != null ? userData.info : null; 845 } 846 } 847 848 /** 849 * Obtains {@link #mUsersLock} and return UserData from mUsers. 850 * <p>No permissions checking or any addition checks are made</p> 851 */ 852 private UserData getUserDataNoChecks(int userId) { 853 synchronized (mUsersLock) { 854 return mUsers.get(userId); 855 } 856 } 857 858 /** Called by PackageManagerService */ 859 public boolean exists(int userId) { 860 return getUserInfoNoChecks(userId) != null; 861 } 862 863 @Override 864 public void setUserName(int userId, String name) { 865 checkManageUsersPermission("rename users"); 866 boolean changed = false; 867 synchronized (mPackagesLock) { 868 UserData userData = getUserDataNoChecks(userId); 869 if (userData == null || userData.info.partial) { 870 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 871 return; 872 } 873 if (name != null && !name.equals(userData.info.name)) { 874 userData.info.name = name; 875 writeUserLP(userData); 876 changed = true; 877 } 878 } 879 if (changed) { 880 sendUserInfoChangedBroadcast(userId); 881 } 882 } 883 884 @Override 885 public void setUserIcon(int userId, Bitmap bitmap) { 886 checkManageUsersPermission("update users"); 887 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 888 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 889 return; 890 } 891 mLocalService.setUserIcon(userId, bitmap); 892 } 893 894 895 896 private void sendUserInfoChangedBroadcast(int userId) { 897 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 898 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 899 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 900 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 901 } 902 903 @Override 904 public ParcelFileDescriptor getUserIcon(int targetUserId) { 905 String iconPath; 906 synchronized (mPackagesLock) { 907 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 908 if (targetUserInfo == null || targetUserInfo.partial) { 909 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 910 return null; 911 } 912 913 final int callingUserId = UserHandle.getCallingUserId(); 914 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 915 final int targetGroupId = targetUserInfo.profileGroupId; 916 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 917 && callingGroupId == targetGroupId); 918 if ((callingUserId != targetUserId) && !sameGroup) { 919 checkManageUsersPermission("get the icon of a user who is not related"); 920 } 921 922 if (targetUserInfo.iconPath == null) { 923 return null; 924 } 925 iconPath = targetUserInfo.iconPath; 926 } 927 928 try { 929 return ParcelFileDescriptor.open( 930 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 931 } catch (FileNotFoundException e) { 932 Log.e(LOG_TAG, "Couldn't find icon file", e); 933 } 934 return null; 935 } 936 937 public void makeInitialized(int userId) { 938 checkManageUsersPermission("makeInitialized"); 939 boolean scheduleWriteUser = false; 940 UserData userData; 941 synchronized (mUsersLock) { 942 userData = mUsers.get(userId); 943 if (userData == null || userData.info.partial) { 944 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 945 return; 946 } 947 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 948 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 949 scheduleWriteUser = true; 950 } 951 } 952 if (scheduleWriteUser) { 953 scheduleWriteUser(userData); 954 } 955 } 956 957 /** 958 * If default guest restrictions haven't been initialized yet, add the basic 959 * restrictions. 960 */ 961 private void initDefaultGuestRestrictions() { 962 synchronized (mGuestRestrictions) { 963 if (mGuestRestrictions.isEmpty()) { 964 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 965 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 966 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 967 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 968 } 969 } 970 } 971 972 @Override 973 public Bundle getDefaultGuestRestrictions() { 974 checkManageUsersPermission("getDefaultGuestRestrictions"); 975 synchronized (mGuestRestrictions) { 976 return new Bundle(mGuestRestrictions); 977 } 978 } 979 980 @Override 981 public void setDefaultGuestRestrictions(Bundle restrictions) { 982 checkManageUsersPermission("setDefaultGuestRestrictions"); 983 synchronized (mGuestRestrictions) { 984 mGuestRestrictions.clear(); 985 mGuestRestrictions.putAll(restrictions); 986 } 987 synchronized (mPackagesLock) { 988 writeUserListLP(); 989 } 990 } 991 992 /** 993 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions(int, Bundle, Bundle)} 994 */ 995 void setDevicePolicyUserRestrictionsInner(int userId, @NonNull Bundle local, 996 @Nullable Bundle global) { 997 Preconditions.checkNotNull(local); 998 boolean globalChanged = false; 999 boolean localChanged; 1000 synchronized (mRestrictionsLock) { 1001 if (global != null) { 1002 // Update global. 1003 globalChanged = !UserRestrictionsUtils.areEqual( 1004 mDevicePolicyGlobalUserRestrictions, global); 1005 if (globalChanged) { 1006 mDevicePolicyGlobalUserRestrictions = global; 1007 } 1008 // Remember the global restriction owner userId to be able to make a distinction 1009 // in getUserRestrictionSource on who set local policies. 1010 mGlobalRestrictionOwnerUserId = userId; 1011 } else { 1012 if (mGlobalRestrictionOwnerUserId == userId) { 1013 // When profile owner sets restrictions it passes null global bundle and we 1014 // reset global restriction owner userId. 1015 // This means this user used to have DO, but now the DO is gone and the user 1016 // instead has PO. 1017 mGlobalRestrictionOwnerUserId = UserHandle.USER_NULL; 1018 } 1019 } 1020 { 1021 // Update local. 1022 final Bundle prev = mDevicePolicyLocalUserRestrictions.get(userId); 1023 localChanged = !UserRestrictionsUtils.areEqual(prev, local); 1024 if (localChanged) { 1025 mDevicePolicyLocalUserRestrictions.put(userId, local); 1026 } 1027 } 1028 } 1029 if (DBG) { 1030 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1031 + " global=" + global + (globalChanged ? " (changed)" : "") 1032 + " local=" + local + (localChanged ? " (changed)" : "") 1033 ); 1034 } 1035 // Don't call them within the mRestrictionsLock. 1036 synchronized (mPackagesLock) { 1037 if (localChanged) { 1038 writeUserLP(getUserDataNoChecks(userId)); 1039 } 1040 if (globalChanged) { 1041 writeUserListLP(); 1042 } 1043 } 1044 1045 synchronized (mRestrictionsLock) { 1046 if (globalChanged) { 1047 applyUserRestrictionsForAllUsersLR(); 1048 } else if (localChanged) { 1049 applyUserRestrictionsLR(userId); 1050 } 1051 } 1052 } 1053 1054 @GuardedBy("mRestrictionsLock") 1055 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1056 final Bundle baseRestrictions = 1057 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1058 final Bundle global = mDevicePolicyGlobalUserRestrictions; 1059 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1060 1061 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1062 // Common case first. 1063 return baseRestrictions; 1064 } 1065 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1066 UserRestrictionsUtils.merge(effective, global); 1067 UserRestrictionsUtils.merge(effective, local); 1068 1069 return effective; 1070 } 1071 1072 @GuardedBy("mRestrictionsLock") 1073 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1074 if (DBG) { 1075 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1076 } 1077 mCachedEffectiveUserRestrictions.remove(userId); 1078 } 1079 1080 private Bundle getEffectiveUserRestrictions(int userId) { 1081 synchronized (mRestrictionsLock) { 1082 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1083 if (restrictions == null) { 1084 restrictions = computeEffectiveUserRestrictionsLR(userId); 1085 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1086 } 1087 return restrictions; 1088 } 1089 } 1090 1091 /** @return a specific user restriction that's in effect currently. */ 1092 @Override 1093 public boolean hasUserRestriction(String restrictionKey, int userId) { 1094 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1095 return false; 1096 } 1097 Bundle restrictions = getEffectiveUserRestrictions(userId); 1098 return restrictions != null && restrictions.getBoolean(restrictionKey); 1099 } 1100 1101 /** 1102 * @hide 1103 * 1104 * Returns who set a user restriction on a user. 1105 * Requires {@link android.Manifest.permission#MANAGE_USERS} permission. 1106 * @param restrictionKey the string key representing the restriction 1107 * @param userId the id of the user for whom to retrieve the restrictions. 1108 * @return The source of user restriction. Any combination of 1109 * {@link UserManager#RESTRICTION_NOT_SET}, 1110 * {@link UserManager#RESTRICTION_SOURCE_SYSTEM}, 1111 * {@link UserManager#RESTRICTION_SOURCE_DEVICE_OWNER} 1112 * and {@link UserManager#RESTRICTION_SOURCE_PROFILE_OWNER} 1113 */ 1114 @Override 1115 public int getUserRestrictionSource(String restrictionKey, int userId) { 1116 checkManageUsersPermission("getUserRestrictionSource"); 1117 int result = UserManager.RESTRICTION_NOT_SET; 1118 1119 // Shortcut for the most common case 1120 if (!hasUserRestriction(restrictionKey, userId)) { 1121 return result; 1122 } 1123 1124 if (hasBaseUserRestriction(restrictionKey, userId)) { 1125 result |= UserManager.RESTRICTION_SOURCE_SYSTEM; 1126 } 1127 1128 synchronized(mRestrictionsLock) { 1129 Bundle localRestrictions = mDevicePolicyLocalUserRestrictions.get(userId); 1130 if (!UserRestrictionsUtils.isEmpty(localRestrictions) 1131 && localRestrictions.getBoolean(restrictionKey)) { 1132 // Local restrictions may have been set by device owner the userId of which is 1133 // stored in mGlobalRestrictionOwnerUserId. 1134 if (mGlobalRestrictionOwnerUserId == userId) { 1135 result |= UserManager.RESTRICTION_SOURCE_DEVICE_OWNER; 1136 } else { 1137 result |= UserManager.RESTRICTION_SOURCE_PROFILE_OWNER; 1138 } 1139 } 1140 if (!UserRestrictionsUtils.isEmpty(mDevicePolicyGlobalUserRestrictions) 1141 && mDevicePolicyGlobalUserRestrictions.getBoolean(restrictionKey)) { 1142 result |= UserManager.RESTRICTION_SOURCE_DEVICE_OWNER; 1143 } 1144 } 1145 1146 return result; 1147 } 1148 1149 /** 1150 * @return UserRestrictions that are in effect currently. This always returns a new 1151 * {@link Bundle}. 1152 */ 1153 @Override 1154 public Bundle getUserRestrictions(int userId) { 1155 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1156 } 1157 1158 @Override 1159 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1160 checkManageUsersPermission("hasBaseUserRestriction"); 1161 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1162 return false; 1163 } 1164 synchronized (mRestrictionsLock) { 1165 Bundle bundle = mBaseUserRestrictions.get(userId); 1166 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1167 } 1168 } 1169 1170 @Override 1171 public void setUserRestriction(String key, boolean value, int userId) { 1172 checkManageUsersPermission("setUserRestriction"); 1173 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1174 return; 1175 } 1176 synchronized (mRestrictionsLock) { 1177 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1178 // a copy. 1179 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1180 mBaseUserRestrictions.get(userId)); 1181 newRestrictions.putBoolean(key, value); 1182 1183 updateUserRestrictionsInternalLR(newRestrictions, userId); 1184 } 1185 } 1186 1187 /** 1188 * Optionally updating user restrictions, calculate the effective user restrictions and also 1189 * propagate to other services and system settings. 1190 * 1191 * @param newRestrictions User restrictions to set. 1192 * If null, will not update user restrictions and only does the propagation. 1193 * @param userId target user ID. 1194 */ 1195 @GuardedBy("mRestrictionsLock") 1196 private void updateUserRestrictionsInternalLR( 1197 @Nullable Bundle newRestrictions, int userId) { 1198 1199 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1200 mAppliedUserRestrictions.get(userId)); 1201 1202 // Update base restrictions. 1203 if (newRestrictions != null) { 1204 // If newRestrictions == the current one, it's probably a bug. 1205 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1206 1207 Preconditions.checkState(prevBaseRestrictions != newRestrictions); 1208 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1209 != newRestrictions); 1210 1211 if (!UserRestrictionsUtils.areEqual(prevBaseRestrictions, newRestrictions)) { 1212 mBaseUserRestrictions.put(userId, newRestrictions); 1213 scheduleWriteUser(getUserDataNoChecks(userId)); 1214 } 1215 } 1216 1217 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1218 1219 mCachedEffectiveUserRestrictions.put(userId, effective); 1220 1221 // Apply the new restrictions. 1222 if (DBG) { 1223 debug("Applying user restrictions: userId=" + userId 1224 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1225 } 1226 1227 if (mAppOpsService != null) { // We skip it until system-ready. 1228 final long token = Binder.clearCallingIdentity(); 1229 try { 1230 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1231 } catch (RemoteException e) { 1232 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1233 } finally { 1234 Binder.restoreCallingIdentity(token); 1235 } 1236 } 1237 1238 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1239 1240 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1241 } 1242 1243 private void propagateUserRestrictionsLR(final int userId, 1244 Bundle newRestrictions, Bundle prevRestrictions) { 1245 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1246 // actually, but we still need some kind of synchronization otherwise we might end up 1247 // calling listeners out-of-order, thus "LR". 1248 1249 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1250 return; 1251 } 1252 1253 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1254 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1255 1256 mHandler.post(new Runnable() { 1257 @Override 1258 public void run() { 1259 UserRestrictionsUtils.applyUserRestrictions( 1260 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1261 1262 final UserRestrictionsListener[] listeners; 1263 synchronized (mUserRestrictionsListeners) { 1264 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1265 mUserRestrictionsListeners.toArray(listeners); 1266 } 1267 for (int i = 0; i < listeners.length; i++) { 1268 listeners[i].onUserRestrictionsChanged(userId, 1269 newRestrictionsFinal, prevRestrictionsFinal); 1270 } 1271 } 1272 }); 1273 } 1274 1275 // Package private for the inner class. 1276 void applyUserRestrictionsLR(int userId) { 1277 updateUserRestrictionsInternalLR(null, userId); 1278 } 1279 1280 @GuardedBy("mRestrictionsLock") 1281 // Package private for the inner class. 1282 void applyUserRestrictionsForAllUsersLR() { 1283 if (DBG) { 1284 debug("applyUserRestrictionsForAllUsersLR"); 1285 } 1286 // First, invalidate all cached values. 1287 mCachedEffectiveUserRestrictions.clear(); 1288 1289 // We don't want to call into ActivityManagerNative while taking a lock, so we'll call 1290 // it on a handler. 1291 final Runnable r = new Runnable() { 1292 @Override 1293 public void run() { 1294 // Then get the list of running users. 1295 final int[] runningUsers; 1296 try { 1297 runningUsers = ActivityManagerNative.getDefault().getRunningUserIds(); 1298 } catch (RemoteException e) { 1299 Log.w(LOG_TAG, "Unable to access ActivityManagerNative"); 1300 return; 1301 } 1302 // Then re-calculate the effective restrictions and apply, only for running users. 1303 // It's okay if a new user has started after the getRunningUserIds() call, 1304 // because we'll do the same thing (re-calculate the restrictions and apply) 1305 // when we start a user. 1306 synchronized (mRestrictionsLock) { 1307 for (int i = 0; i < runningUsers.length; i++) { 1308 applyUserRestrictionsLR(runningUsers[i]); 1309 } 1310 } 1311 } 1312 }; 1313 mHandler.post(r); 1314 } 1315 1316 /** 1317 * Check if we've hit the limit of how many users can be created. 1318 */ 1319 private boolean isUserLimitReached() { 1320 int count; 1321 synchronized (mUsersLock) { 1322 count = getAliveUsersExcludingGuestsCountLU(); 1323 } 1324 return count >= UserManager.getMaxSupportedUsers(); 1325 } 1326 1327 @Override 1328 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1329 checkManageUsersPermission("check if more managed profiles can be added."); 1330 if (ActivityManager.isLowRamDeviceStatic()) { 1331 return false; 1332 } 1333 if (!mContext.getPackageManager().hasSystemFeature( 1334 PackageManager.FEATURE_MANAGED_USERS)) { 1335 return false; 1336 } 1337 // Limit number of managed profiles that can be created 1338 final int managedProfilesCount = getProfiles(userId, true).size() - 1; 1339 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1340 if (managedProfilesCount - profilesRemovedCount >= MAX_MANAGED_PROFILES) { 1341 return false; 1342 } 1343 synchronized(mUsersLock) { 1344 UserInfo userInfo = getUserInfoLU(userId); 1345 if (!userInfo.canHaveProfile()) { 1346 return false; 1347 } 1348 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1349 - profilesRemovedCount; 1350 // We allow creating a managed profile in the special case where there is only one user. 1351 return usersCountAfterRemoving == 1 1352 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1353 } 1354 } 1355 1356 private int getAliveUsersExcludingGuestsCountLU() { 1357 int aliveUserCount = 0; 1358 final int totalUserCount = mUsers.size(); 1359 // Skip over users being removed 1360 for (int i = 0; i < totalUserCount; i++) { 1361 UserInfo user = mUsers.valueAt(i).info; 1362 if (!mRemovingUserIds.get(user.id) 1363 && !user.isGuest() && !user.partial) { 1364 aliveUserCount++; 1365 } 1366 } 1367 return aliveUserCount; 1368 } 1369 1370 /** 1371 * Enforces that only the system UID or root's UID or apps that have the 1372 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1373 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1374 * permissions can make certain calls to the UserManager. 1375 * 1376 * @param message used as message if SecurityException is thrown 1377 * @throws SecurityException if the caller does not have enough privilege. 1378 */ 1379 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1380 final int uid = Binder.getCallingUid(); 1381 if (uid != Process.SYSTEM_UID && uid != 0 1382 && ActivityManager.checkComponentPermission( 1383 Manifest.permission.MANAGE_USERS, 1384 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1385 && ActivityManager.checkComponentPermission( 1386 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1387 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1388 throw new SecurityException( 1389 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1390 + message); 1391 } 1392 } 1393 1394 /** 1395 * Enforces that only the system UID or root's UID or apps that have the 1396 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1397 * permission can make certain calls to the UserManager. 1398 * 1399 * @param message used as message if SecurityException is thrown 1400 * @throws SecurityException if the caller is not system or root 1401 * @see #hasManageUsersPermission() 1402 */ 1403 private static final void checkManageUsersPermission(String message) { 1404 if (!hasManageUsersPermission()) { 1405 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1406 } 1407 } 1408 1409 /** 1410 * @return whether the calling UID is system UID or root's UID or the calling app has the 1411 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1412 */ 1413 private static final boolean hasManageUsersPermission() { 1414 final int callingUid = Binder.getCallingUid(); 1415 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1416 || callingUid == Process.ROOT_UID 1417 || ActivityManager.checkComponentPermission( 1418 android.Manifest.permission.MANAGE_USERS, 1419 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1420 } 1421 1422 /** 1423 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1424 * UserManager. 1425 * 1426 * @param message used as message if SecurityException is thrown 1427 * @throws SecurityException if the caller is not system or root 1428 */ 1429 private static void checkSystemOrRoot(String message) { 1430 final int uid = Binder.getCallingUid(); 1431 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1432 throw new SecurityException("Only system may: " + message); 1433 } 1434 } 1435 1436 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1437 try { 1438 File dir = new File(mUsersDir, Integer.toString(info.id)); 1439 File file = new File(dir, USER_PHOTO_FILENAME); 1440 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1441 if (!dir.exists()) { 1442 dir.mkdir(); 1443 FileUtils.setPermissions( 1444 dir.getPath(), 1445 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1446 -1, -1); 1447 } 1448 FileOutputStream os; 1449 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1450 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1451 info.iconPath = file.getAbsolutePath(); 1452 } 1453 try { 1454 os.close(); 1455 } catch (IOException ioe) { 1456 // What the ... ! 1457 } 1458 tmp.delete(); 1459 } catch (FileNotFoundException e) { 1460 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1461 } 1462 } 1463 1464 /** 1465 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1466 * cache it elsewhere. 1467 * @return the array of user ids. 1468 */ 1469 public int[] getUserIds() { 1470 synchronized (mUsersLock) { 1471 return mUserIds; 1472 } 1473 } 1474 1475 private void readUserListLP() { 1476 if (!mUserListFile.exists()) { 1477 fallbackToSingleUserLP(); 1478 return; 1479 } 1480 FileInputStream fis = null; 1481 AtomicFile userListFile = new AtomicFile(mUserListFile); 1482 try { 1483 fis = userListFile.openRead(); 1484 XmlPullParser parser = Xml.newPullParser(); 1485 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1486 int type; 1487 while ((type = parser.next()) != XmlPullParser.START_TAG 1488 && type != XmlPullParser.END_DOCUMENT) { 1489 // Skip 1490 } 1491 1492 if (type != XmlPullParser.START_TAG) { 1493 Slog.e(LOG_TAG, "Unable to read user list"); 1494 fallbackToSingleUserLP(); 1495 return; 1496 } 1497 1498 mNextSerialNumber = -1; 1499 if (parser.getName().equals(TAG_USERS)) { 1500 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1501 if (lastSerialNumber != null) { 1502 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1503 } 1504 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1505 if (versionNumber != null) { 1506 mUserVersion = Integer.parseInt(versionNumber); 1507 } 1508 } 1509 1510 final Bundle newDevicePolicyGlobalUserRestrictions = new Bundle(); 1511 1512 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1513 if (type == XmlPullParser.START_TAG) { 1514 final String name = parser.getName(); 1515 if (name.equals(TAG_USER)) { 1516 String id = parser.getAttributeValue(null, ATTR_ID); 1517 1518 UserData userData = readUserLP(Integer.parseInt(id)); 1519 1520 if (userData != null) { 1521 synchronized (mUsersLock) { 1522 mUsers.put(userData.info.id, userData); 1523 if (mNextSerialNumber < 0 1524 || mNextSerialNumber <= userData.info.id) { 1525 mNextSerialNumber = userData.info.id + 1; 1526 } 1527 } 1528 } 1529 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1530 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1531 && type != XmlPullParser.END_TAG) { 1532 if (type == XmlPullParser.START_TAG) { 1533 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1534 synchronized (mGuestRestrictions) { 1535 UserRestrictionsUtils 1536 .readRestrictions(parser, mGuestRestrictions); 1537 } 1538 } else if (parser.getName().equals(TAG_DEVICE_POLICY_RESTRICTIONS) 1539 ) { 1540 UserRestrictionsUtils.readRestrictions(parser, 1541 newDevicePolicyGlobalUserRestrictions); 1542 } 1543 break; 1544 } 1545 } 1546 } else if (name.equals(TAG_GLOBAL_RESTRICTION_OWNER_ID)) { 1547 String ownerUserId = parser.getAttributeValue(null, ATTR_ID); 1548 if (ownerUserId != null) { 1549 mGlobalRestrictionOwnerUserId = Integer.parseInt(ownerUserId); 1550 } 1551 } 1552 } 1553 } 1554 synchronized (mRestrictionsLock) { 1555 mDevicePolicyGlobalUserRestrictions = newDevicePolicyGlobalUserRestrictions; 1556 } 1557 updateUserIds(); 1558 upgradeIfNecessaryLP(); 1559 } catch (IOException | XmlPullParserException e) { 1560 fallbackToSingleUserLP(); 1561 } finally { 1562 IoUtils.closeQuietly(fis); 1563 } 1564 } 1565 1566 /** 1567 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1568 */ 1569 private void upgradeIfNecessaryLP() { 1570 final int originalVersion = mUserVersion; 1571 int userVersion = mUserVersion; 1572 if (userVersion < 1) { 1573 // Assign a proper name for the owner, if not initialized correctly before 1574 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1575 if ("Primary".equals(userData.info.name)) { 1576 userData.info.name = 1577 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1578 scheduleWriteUser(userData); 1579 } 1580 userVersion = 1; 1581 } 1582 1583 if (userVersion < 2) { 1584 // Owner should be marked as initialized 1585 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1586 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1587 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1588 scheduleWriteUser(userData); 1589 } 1590 userVersion = 2; 1591 } 1592 1593 1594 if (userVersion < 4) { 1595 userVersion = 4; 1596 } 1597 1598 if (userVersion < 5) { 1599 initDefaultGuestRestrictions(); 1600 userVersion = 5; 1601 } 1602 1603 if (userVersion < 6) { 1604 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1605 synchronized (mUsersLock) { 1606 for (int i = 0; i < mUsers.size(); i++) { 1607 UserData userData = mUsers.valueAt(i); 1608 // In non-split mode, only user 0 can have restricted profiles 1609 if (!splitSystemUser && userData.info.isRestricted() 1610 && (userData.info.restrictedProfileParentId 1611 == UserInfo.NO_PROFILE_GROUP_ID)) { 1612 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1613 scheduleWriteUser(userData); 1614 } 1615 } 1616 } 1617 userVersion = 6; 1618 } 1619 1620 if (userVersion < USER_VERSION) { 1621 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1622 + USER_VERSION); 1623 } else { 1624 mUserVersion = userVersion; 1625 1626 if (originalVersion < mUserVersion) { 1627 writeUserListLP(); 1628 } 1629 } 1630 } 1631 1632 private void fallbackToSingleUserLP() { 1633 int flags = UserInfo.FLAG_INITIALIZED; 1634 // In split system user mode, the admin and primary flags are assigned to the first human 1635 // user. 1636 if (!UserManager.isSplitSystemUser()) { 1637 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1638 } 1639 // Create the system user 1640 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 1641 UserData userData = new UserData(); 1642 userData.info = system; 1643 synchronized (mUsersLock) { 1644 mUsers.put(system.id, userData); 1645 } 1646 mNextSerialNumber = MIN_USER_ID; 1647 mUserVersion = USER_VERSION; 1648 1649 Bundle restrictions = new Bundle(); 1650 synchronized (mRestrictionsLock) { 1651 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1652 } 1653 1654 updateUserIds(); 1655 initDefaultGuestRestrictions(); 1656 1657 writeUserLP(userData); 1658 writeUserListLP(); 1659 } 1660 1661 private String getOwnerName() { 1662 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 1663 } 1664 1665 private void scheduleWriteUser(UserData UserData) { 1666 if (DBG) { 1667 debug("scheduleWriteUser"); 1668 } 1669 // No need to wrap it within a lock -- worst case, we'll just post the same message 1670 // twice. 1671 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 1672 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 1673 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1674 } 1675 } 1676 1677 /* 1678 * Writes the user file in this format: 1679 * 1680 * <user flags="20039023" id="0"> 1681 * <name>Primary</name> 1682 * </user> 1683 */ 1684 private void writeUserLP(UserData userData) { 1685 if (DBG) { 1686 debug("writeUserLP " + userData); 1687 } 1688 FileOutputStream fos = null; 1689 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 1690 try { 1691 fos = userFile.startWrite(); 1692 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1693 1694 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1695 final XmlSerializer serializer = new FastXmlSerializer(); 1696 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1697 serializer.startDocument(null, true); 1698 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1699 1700 final UserInfo userInfo = userData.info; 1701 serializer.startTag(null, TAG_USER); 1702 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 1703 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 1704 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 1705 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 1706 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 1707 Long.toString(userInfo.lastLoggedInTime)); 1708 if (userInfo.lastLoggedInFingerprint != null) { 1709 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 1710 userInfo.lastLoggedInFingerprint); 1711 } 1712 if (userInfo.iconPath != null) { 1713 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 1714 } 1715 if (userInfo.partial) { 1716 serializer.attribute(null, ATTR_PARTIAL, "true"); 1717 } 1718 if (userInfo.guestToRemove) { 1719 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 1720 } 1721 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 1722 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 1723 Integer.toString(userInfo.profileGroupId)); 1724 } 1725 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 1726 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 1727 Integer.toString(userInfo.restrictedProfileParentId)); 1728 } 1729 // Write seed data 1730 if (userData.persistSeedData) { 1731 if (userData.seedAccountName != null) { 1732 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 1733 } 1734 if (userData.seedAccountType != null) { 1735 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 1736 } 1737 } 1738 if (userInfo.name != null) { 1739 serializer.startTag(null, TAG_NAME); 1740 serializer.text(userInfo.name); 1741 serializer.endTag(null, TAG_NAME); 1742 } 1743 synchronized (mRestrictionsLock) { 1744 UserRestrictionsUtils.writeRestrictions(serializer, 1745 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 1746 UserRestrictionsUtils.writeRestrictions(serializer, 1747 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 1748 TAG_DEVICE_POLICY_RESTRICTIONS); 1749 } 1750 1751 if (userData.account != null) { 1752 serializer.startTag(null, TAG_ACCOUNT); 1753 serializer.text(userData.account); 1754 serializer.endTag(null, TAG_ACCOUNT); 1755 } 1756 1757 if (userData.persistSeedData && userData.seedAccountOptions != null) { 1758 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1759 userData.seedAccountOptions.saveToXml(serializer); 1760 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1761 } 1762 serializer.endTag(null, TAG_USER); 1763 1764 serializer.endDocument(); 1765 userFile.finishWrite(fos); 1766 } catch (Exception ioe) { 1767 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 1768 userFile.failWrite(fos); 1769 } 1770 } 1771 1772 /* 1773 * Writes the user list file in this format: 1774 * 1775 * <users nextSerialNumber="3"> 1776 * <user id="0"></user> 1777 * <user id="2"></user> 1778 * </users> 1779 */ 1780 private void writeUserListLP() { 1781 if (DBG) { 1782 debug("writeUserList"); 1783 } 1784 FileOutputStream fos = null; 1785 AtomicFile userListFile = new AtomicFile(mUserListFile); 1786 try { 1787 fos = userListFile.startWrite(); 1788 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1789 1790 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1791 final XmlSerializer serializer = new FastXmlSerializer(); 1792 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1793 serializer.startDocument(null, true); 1794 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1795 1796 serializer.startTag(null, TAG_USERS); 1797 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 1798 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 1799 1800 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 1801 synchronized (mGuestRestrictions) { 1802 UserRestrictionsUtils 1803 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 1804 } 1805 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 1806 synchronized (mRestrictionsLock) { 1807 UserRestrictionsUtils.writeRestrictions(serializer, 1808 mDevicePolicyGlobalUserRestrictions, TAG_DEVICE_POLICY_RESTRICTIONS); 1809 } 1810 serializer.startTag(null, TAG_GLOBAL_RESTRICTION_OWNER_ID); 1811 serializer.attribute(null, ATTR_ID, Integer.toString(mGlobalRestrictionOwnerUserId)); 1812 serializer.endTag(null, TAG_GLOBAL_RESTRICTION_OWNER_ID); 1813 int[] userIdsToWrite; 1814 synchronized (mUsersLock) { 1815 userIdsToWrite = new int[mUsers.size()]; 1816 for (int i = 0; i < userIdsToWrite.length; i++) { 1817 UserInfo user = mUsers.valueAt(i).info; 1818 userIdsToWrite[i] = user.id; 1819 } 1820 } 1821 for (int id : userIdsToWrite) { 1822 serializer.startTag(null, TAG_USER); 1823 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 1824 serializer.endTag(null, TAG_USER); 1825 } 1826 1827 serializer.endTag(null, TAG_USERS); 1828 1829 serializer.endDocument(); 1830 userListFile.finishWrite(fos); 1831 } catch (Exception e) { 1832 userListFile.failWrite(fos); 1833 Slog.e(LOG_TAG, "Error writing user list"); 1834 } 1835 } 1836 1837 private UserData readUserLP(int id) { 1838 int flags = 0; 1839 int serialNumber = id; 1840 String name = null; 1841 String account = null; 1842 String iconPath = null; 1843 long creationTime = 0L; 1844 long lastLoggedInTime = 0L; 1845 String lastLoggedInFingerprint = null; 1846 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 1847 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 1848 boolean partial = false; 1849 boolean guestToRemove = false; 1850 boolean persistSeedData = false; 1851 String seedAccountName = null; 1852 String seedAccountType = null; 1853 PersistableBundle seedAccountOptions = null; 1854 Bundle baseRestrictions = new Bundle(); 1855 Bundle localRestrictions = new Bundle(); 1856 1857 FileInputStream fis = null; 1858 try { 1859 AtomicFile userFile = 1860 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 1861 fis = userFile.openRead(); 1862 XmlPullParser parser = Xml.newPullParser(); 1863 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1864 int type; 1865 while ((type = parser.next()) != XmlPullParser.START_TAG 1866 && type != XmlPullParser.END_DOCUMENT) { 1867 // Skip 1868 } 1869 1870 if (type != XmlPullParser.START_TAG) { 1871 Slog.e(LOG_TAG, "Unable to read user " + id); 1872 return null; 1873 } 1874 1875 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 1876 int storedId = readIntAttribute(parser, ATTR_ID, -1); 1877 if (storedId != id) { 1878 Slog.e(LOG_TAG, "User id does not match the file name"); 1879 return null; 1880 } 1881 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 1882 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 1883 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 1884 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 1885 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 1886 lastLoggedInFingerprint = parser.getAttributeValue(null, 1887 ATTR_LAST_LOGGED_IN_FINGERPRINT); 1888 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 1889 UserInfo.NO_PROFILE_GROUP_ID); 1890 restrictedProfileParentId = readIntAttribute(parser, 1891 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 1892 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 1893 if ("true".equals(valueString)) { 1894 partial = true; 1895 } 1896 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 1897 if ("true".equals(valueString)) { 1898 guestToRemove = true; 1899 } 1900 1901 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 1902 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 1903 if (seedAccountName != null || seedAccountType != null) { 1904 persistSeedData = true; 1905 } 1906 1907 int outerDepth = parser.getDepth(); 1908 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1909 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1910 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1911 continue; 1912 } 1913 String tag = parser.getName(); 1914 if (TAG_NAME.equals(tag)) { 1915 type = parser.next(); 1916 if (type == XmlPullParser.TEXT) { 1917 name = parser.getText(); 1918 } 1919 } else if (TAG_RESTRICTIONS.equals(tag)) { 1920 UserRestrictionsUtils.readRestrictions(parser, baseRestrictions); 1921 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 1922 UserRestrictionsUtils.readRestrictions(parser, localRestrictions); 1923 } else if (TAG_ACCOUNT.equals(tag)) { 1924 type = parser.next(); 1925 if (type == XmlPullParser.TEXT) { 1926 account = parser.getText(); 1927 } 1928 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 1929 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 1930 persistSeedData = true; 1931 } 1932 } 1933 } 1934 1935 // Create the UserInfo object that gets passed around 1936 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 1937 userInfo.serialNumber = serialNumber; 1938 userInfo.creationTime = creationTime; 1939 userInfo.lastLoggedInTime = lastLoggedInTime; 1940 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 1941 userInfo.partial = partial; 1942 userInfo.guestToRemove = guestToRemove; 1943 userInfo.profileGroupId = profileGroupId; 1944 userInfo.restrictedProfileParentId = restrictedProfileParentId; 1945 1946 // Create the UserData object that's internal to this class 1947 UserData userData = new UserData(); 1948 userData.info = userInfo; 1949 userData.account = account; 1950 userData.seedAccountName = seedAccountName; 1951 userData.seedAccountType = seedAccountType; 1952 userData.persistSeedData = persistSeedData; 1953 userData.seedAccountOptions = seedAccountOptions; 1954 1955 synchronized (mRestrictionsLock) { 1956 mBaseUserRestrictions.put(id, baseRestrictions); 1957 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 1958 } 1959 return userData; 1960 } catch (IOException ioe) { 1961 } catch (XmlPullParserException pe) { 1962 } finally { 1963 if (fis != null) { 1964 try { 1965 fis.close(); 1966 } catch (IOException e) { 1967 } 1968 } 1969 } 1970 return null; 1971 } 1972 1973 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 1974 String valueString = parser.getAttributeValue(null, attr); 1975 if (valueString == null) return defaultValue; 1976 try { 1977 return Integer.parseInt(valueString); 1978 } catch (NumberFormatException nfe) { 1979 return defaultValue; 1980 } 1981 } 1982 1983 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 1984 String valueString = parser.getAttributeValue(null, attr); 1985 if (valueString == null) return defaultValue; 1986 try { 1987 return Long.parseLong(valueString); 1988 } catch (NumberFormatException nfe) { 1989 return defaultValue; 1990 } 1991 } 1992 1993 /** 1994 * Removes the app restrictions file for a specific package and user id, if it exists. 1995 */ 1996 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 1997 synchronized (mPackagesLock) { 1998 File dir = Environment.getUserSystemDirectory(userId); 1999 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 2000 if (resFile.exists()) { 2001 resFile.delete(); 2002 } 2003 } 2004 } 2005 2006 @Override 2007 public UserInfo createProfileForUser(String name, int flags, int userId) { 2008 checkManageUsersPermission("Only the system can create users"); 2009 return createUserInternal(name, flags, userId); 2010 } 2011 2012 @Override 2013 public UserInfo createUser(String name, int flags) { 2014 checkManageUsersPermission("Only the system can create users"); 2015 return createUserInternal(name, flags, UserHandle.USER_NULL); 2016 } 2017 2018 private UserInfo createUserInternal(String name, int flags, int parentId) { 2019 if (hasUserRestriction(UserManager.DISALLOW_ADD_USER, UserHandle.getCallingUserId())) { 2020 Log.w(LOG_TAG, "Cannot add user. DISALLOW_ADD_USER is enabled."); 2021 return null; 2022 } 2023 return createUserInternalUnchecked(name, flags, parentId); 2024 } 2025 2026 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId) { 2027 if (ActivityManager.isLowRamDeviceStatic()) { 2028 return null; 2029 } 2030 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 2031 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 2032 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 2033 final long ident = Binder.clearCallingIdentity(); 2034 UserInfo userInfo; 2035 UserData userData; 2036 final int userId; 2037 try { 2038 synchronized (mPackagesLock) { 2039 UserData parent = null; 2040 if (parentId != UserHandle.USER_NULL) { 2041 synchronized (mUsersLock) { 2042 parent = getUserDataLU(parentId); 2043 } 2044 if (parent == null) return null; 2045 } 2046 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 2047 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 2048 return null; 2049 } 2050 if (!isGuest && !isManagedProfile && isUserLimitReached()) { 2051 // If we're not adding a guest user or a managed profile and the limit has 2052 // been reached, cannot add a user. 2053 return null; 2054 } 2055 // If we're adding a guest and there already exists one, bail. 2056 if (isGuest && findCurrentGuestUser() != null) { 2057 return null; 2058 } 2059 // In legacy mode, restricted profile's parent can only be the owner user 2060 if (isRestricted && !UserManager.isSplitSystemUser() 2061 && (parentId != UserHandle.USER_SYSTEM)) { 2062 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 2063 return null; 2064 } 2065 if (isRestricted && UserManager.isSplitSystemUser()) { 2066 if (parent == null) { 2067 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 2068 + "specified"); 2069 return null; 2070 } 2071 if (!parent.info.canHaveProfile()) { 2072 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 2073 + "created for the specified parent user id " + parentId); 2074 return null; 2075 } 2076 } 2077 if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0) { 2078 Log.e(LOG_TAG, 2079 "Ephemeral users are supported on split-system-user systems only."); 2080 return null; 2081 } 2082 // In split system user mode, we assign the first human user the primary flag. 2083 // And if there is no device owner, we also assign the admin flag to primary user. 2084 if (UserManager.isSplitSystemUser() 2085 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2086 flags |= UserInfo.FLAG_PRIMARY; 2087 synchronized (mUsersLock) { 2088 if (!mIsDeviceManaged) { 2089 flags |= UserInfo.FLAG_ADMIN; 2090 } 2091 } 2092 } 2093 2094 userId = getNextAvailableId(); 2095 Environment.getUserSystemDirectory(userId).mkdirs(); 2096 boolean ephemeralGuests = Resources.getSystem() 2097 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2098 2099 synchronized (mUsersLock) { 2100 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2101 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2102 || (parent != null && parent.info.isEphemeral())) { 2103 flags |= UserInfo.FLAG_EPHEMERAL; 2104 } 2105 2106 userInfo = new UserInfo(userId, name, null, flags); 2107 userInfo.serialNumber = mNextSerialNumber++; 2108 long now = System.currentTimeMillis(); 2109 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2110 userInfo.partial = true; 2111 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2112 userData = new UserData(); 2113 userData.info = userInfo; 2114 mUsers.put(userId, userData); 2115 } 2116 writeUserLP(userData); 2117 writeUserListLP(); 2118 if (parent != null) { 2119 if (isManagedProfile) { 2120 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2121 parent.info.profileGroupId = parent.info.id; 2122 writeUserLP(parent); 2123 } 2124 userInfo.profileGroupId = parent.info.profileGroupId; 2125 } else if (isRestricted) { 2126 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2127 parent.info.restrictedProfileParentId = parent.info.id; 2128 writeUserLP(parent); 2129 } 2130 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2131 } 2132 } 2133 } 2134 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2135 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2136 mPm.prepareUserData(userId, userInfo.serialNumber, 2137 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2138 mPm.createNewUser(userId); 2139 userInfo.partial = false; 2140 synchronized (mPackagesLock) { 2141 writeUserLP(userData); 2142 } 2143 updateUserIds(); 2144 Bundle restrictions = new Bundle(); 2145 if (isGuest) { 2146 synchronized (mGuestRestrictions) { 2147 restrictions.putAll(mGuestRestrictions); 2148 } 2149 } 2150 synchronized (mRestrictionsLock) { 2151 mBaseUserRestrictions.append(userId, restrictions); 2152 } 2153 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2154 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2155 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2156 android.Manifest.permission.MANAGE_USERS); 2157 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED : TRON_USER_CREATED, 1); 2158 } finally { 2159 Binder.restoreCallingIdentity(ident); 2160 } 2161 return userInfo; 2162 } 2163 2164 /** 2165 * @hide 2166 */ 2167 @Override 2168 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2169 checkManageUsersPermission("setupRestrictedProfile"); 2170 final UserInfo user = createProfileForUser(name, UserInfo.FLAG_RESTRICTED, parentUserId); 2171 if (user == null) { 2172 return null; 2173 } 2174 long identity = Binder.clearCallingIdentity(); 2175 try { 2176 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2177 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2178 // the putIntForUser() will fail. 2179 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2180 android.provider.Settings.Secure.LOCATION_MODE, 2181 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2182 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2183 } finally { 2184 Binder.restoreCallingIdentity(identity); 2185 } 2186 return user; 2187 } 2188 2189 /** 2190 * Find the current guest user. If the Guest user is partial, 2191 * then do not include it in the results as it is about to die. 2192 */ 2193 private UserInfo findCurrentGuestUser() { 2194 synchronized (mUsersLock) { 2195 final int size = mUsers.size(); 2196 for (int i = 0; i < size; i++) { 2197 final UserInfo user = mUsers.valueAt(i).info; 2198 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2199 return user; 2200 } 2201 } 2202 } 2203 return null; 2204 } 2205 2206 /** 2207 * Mark this guest user for deletion to allow us to create another guest 2208 * and switch to that user before actually removing this guest. 2209 * @param userHandle the userid of the current guest 2210 * @return whether the user could be marked for deletion 2211 */ 2212 @Override 2213 public boolean markGuestForDeletion(int userHandle) { 2214 checkManageUsersPermission("Only the system can remove users"); 2215 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2216 UserManager.DISALLOW_REMOVE_USER, false)) { 2217 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2218 return false; 2219 } 2220 2221 long ident = Binder.clearCallingIdentity(); 2222 try { 2223 final UserData userData; 2224 synchronized (mPackagesLock) { 2225 synchronized (mUsersLock) { 2226 userData = mUsers.get(userHandle); 2227 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2228 return false; 2229 } 2230 } 2231 if (!userData.info.isGuest()) { 2232 return false; 2233 } 2234 // We set this to a guest user that is to be removed. This is a temporary state 2235 // where we are allowed to add new Guest users, even if this one is still not 2236 // removed. This user will still show up in getUserInfo() calls. 2237 // If we don't get around to removing this Guest user, it will be purged on next 2238 // startup. 2239 userData.info.guestToRemove = true; 2240 // Mark it as disabled, so that it isn't returned any more when 2241 // profiles are queried. 2242 userData.info.flags |= UserInfo.FLAG_DISABLED; 2243 writeUserLP(userData); 2244 } 2245 } finally { 2246 Binder.restoreCallingIdentity(ident); 2247 } 2248 return true; 2249 } 2250 2251 /** 2252 * Removes a user and all data directories created for that user. This method should be called 2253 * after the user's processes have been terminated. 2254 * @param userHandle the user's id 2255 */ 2256 @Override 2257 public boolean removeUser(int userHandle) { 2258 checkManageUsersPermission("Only the system can remove users"); 2259 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2260 UserManager.DISALLOW_REMOVE_USER, false)) { 2261 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2262 return false; 2263 } 2264 2265 long ident = Binder.clearCallingIdentity(); 2266 try { 2267 final UserData userData; 2268 int currentUser = ActivityManager.getCurrentUser(); 2269 if (currentUser == userHandle) { 2270 Log.w(LOG_TAG, "Current user cannot be removed"); 2271 return false; 2272 } 2273 synchronized (mPackagesLock) { 2274 synchronized (mUsersLock) { 2275 userData = mUsers.get(userHandle); 2276 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2277 return false; 2278 } 2279 2280 // We remember deleted user IDs to prevent them from being 2281 // reused during the current boot; they can still be reused 2282 // after a reboot. 2283 mRemovingUserIds.put(userHandle, true); 2284 } 2285 2286 try { 2287 mAppOpsService.removeUser(userHandle); 2288 } catch (RemoteException e) { 2289 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2290 } 2291 // Set this to a partially created user, so that the user will be purged 2292 // on next startup, in case the runtime stops now before stopping and 2293 // removing the user completely. 2294 userData.info.partial = true; 2295 // Mark it as disabled, so that it isn't returned any more when 2296 // profiles are queried. 2297 userData.info.flags |= UserInfo.FLAG_DISABLED; 2298 writeUserLP(userData); 2299 } 2300 2301 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2302 && userData.info.isManagedProfile()) { 2303 // Send broadcast to notify system that the user removed was a 2304 // managed user. 2305 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2306 } 2307 2308 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2309 int res; 2310 try { 2311 res = ActivityManagerNative.getDefault().stopUser(userHandle, /* force= */ true, 2312 new IStopUserCallback.Stub() { 2313 @Override 2314 public void userStopped(int userId) { 2315 finishRemoveUser(userId); 2316 } 2317 @Override 2318 public void userStopAborted(int userId) { 2319 } 2320 }); 2321 } catch (RemoteException e) { 2322 return false; 2323 } 2324 return res == ActivityManager.USER_OP_SUCCESS; 2325 } finally { 2326 Binder.restoreCallingIdentity(ident); 2327 } 2328 } 2329 2330 void finishRemoveUser(final int userHandle) { 2331 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2332 // Let other services shutdown any activity and clean up their state before completely 2333 // wiping the user's system directory and removing from the user list 2334 long ident = Binder.clearCallingIdentity(); 2335 try { 2336 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2337 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2338 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2339 android.Manifest.permission.MANAGE_USERS, 2340 2341 new BroadcastReceiver() { 2342 @Override 2343 public void onReceive(Context context, Intent intent) { 2344 if (DBG) { 2345 Slog.i(LOG_TAG, 2346 "USER_REMOVED broadcast sent, cleaning up user data " 2347 + userHandle); 2348 } 2349 new Thread() { 2350 @Override 2351 public void run() { 2352 // Clean up any ActivityManager state 2353 LocalServices.getService(ActivityManagerInternal.class) 2354 .onUserRemoved(userHandle); 2355 removeUserState(userHandle); 2356 } 2357 }.start(); 2358 } 2359 }, 2360 2361 null, Activity.RESULT_OK, null, null); 2362 } finally { 2363 Binder.restoreCallingIdentity(ident); 2364 } 2365 } 2366 2367 private void removeUserState(final int userHandle) { 2368 try { 2369 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2370 } catch (IllegalStateException e) { 2371 // This may be simply because the user was partially created. 2372 Slog.i(LOG_TAG, 2373 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2374 } 2375 2376 // Cleanup package manager settings 2377 mPm.cleanUpUser(this, userHandle); 2378 // Remove this user from the list 2379 synchronized (mUsersLock) { 2380 mUsers.remove(userHandle); 2381 mIsUserManaged.delete(userHandle); 2382 } 2383 synchronized (mUserStates) { 2384 mUserStates.delete(userHandle); 2385 } 2386 synchronized (mRestrictionsLock) { 2387 mBaseUserRestrictions.remove(userHandle); 2388 mAppliedUserRestrictions.remove(userHandle); 2389 mCachedEffectiveUserRestrictions.remove(userHandle); 2390 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2391 } 2392 // Update the user list 2393 synchronized (mPackagesLock) { 2394 writeUserListLP(); 2395 } 2396 // Remove user file 2397 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2398 userFile.delete(); 2399 updateUserIds(); 2400 2401 // Now that we've purged all the metadata above, destroy the actual data 2402 // on disk; if we battery pull in here we'll finish cleaning up when 2403 // reconciling after reboot. 2404 mPm.destroyUserData(userHandle, 2405 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2406 } 2407 2408 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2409 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2410 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2411 Intent.FLAG_RECEIVER_FOREGROUND); 2412 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2413 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2414 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2415 } 2416 2417 @Override 2418 public Bundle getApplicationRestrictions(String packageName) { 2419 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2420 } 2421 2422 @Override 2423 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2424 if (UserHandle.getCallingUserId() != userId 2425 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2426 checkSystemOrRoot("get application restrictions for other users/apps"); 2427 } 2428 synchronized (mPackagesLock) { 2429 // Read the restrictions from XML 2430 return readApplicationRestrictionsLP(packageName, userId); 2431 } 2432 } 2433 2434 @Override 2435 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2436 int userId) { 2437 checkSystemOrRoot("set application restrictions"); 2438 if (restrictions != null) { 2439 restrictions.setDefusable(true); 2440 } 2441 synchronized (mPackagesLock) { 2442 if (restrictions == null || restrictions.isEmpty()) { 2443 cleanAppRestrictionsForPackage(packageName, userId); 2444 } else { 2445 // Write the restrictions to XML 2446 writeApplicationRestrictionsLP(packageName, restrictions, userId); 2447 } 2448 } 2449 2450 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2451 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2452 changeIntent.setPackage(packageName); 2453 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2454 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2455 } 2456 2457 private int getUidForPackage(String packageName) { 2458 long ident = Binder.clearCallingIdentity(); 2459 try { 2460 return mContext.getPackageManager().getApplicationInfo(packageName, 2461 PackageManager.MATCH_UNINSTALLED_PACKAGES).uid; 2462 } catch (NameNotFoundException nnfe) { 2463 return -1; 2464 } finally { 2465 Binder.restoreCallingIdentity(ident); 2466 } 2467 } 2468 2469 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 2470 AtomicFile restrictionsFile = 2471 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2472 packageToRestrictionsFileName(packageName))); 2473 return readApplicationRestrictionsLP(restrictionsFile); 2474 } 2475 2476 @VisibleForTesting 2477 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 2478 final Bundle restrictions = new Bundle(); 2479 final ArrayList<String> values = new ArrayList<>(); 2480 if (!restrictionsFile.getBaseFile().exists()) { 2481 return restrictions; 2482 } 2483 2484 FileInputStream fis = null; 2485 try { 2486 fis = restrictionsFile.openRead(); 2487 XmlPullParser parser = Xml.newPullParser(); 2488 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2489 XmlUtils.nextElement(parser); 2490 if (parser.getEventType() != XmlPullParser.START_TAG) { 2491 Slog.e(LOG_TAG, "Unable to read restrictions file " 2492 + restrictionsFile.getBaseFile()); 2493 return restrictions; 2494 } 2495 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2496 readEntry(restrictions, values, parser); 2497 } 2498 } catch (IOException|XmlPullParserException e) { 2499 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2500 } finally { 2501 IoUtils.closeQuietly(fis); 2502 } 2503 return restrictions; 2504 } 2505 2506 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2507 XmlPullParser parser) throws XmlPullParserException, IOException { 2508 int type = parser.getEventType(); 2509 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2510 String key = parser.getAttributeValue(null, ATTR_KEY); 2511 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2512 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2513 if (multiple != null) { 2514 values.clear(); 2515 int count = Integer.parseInt(multiple); 2516 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2517 if (type == XmlPullParser.START_TAG 2518 && parser.getName().equals(TAG_VALUE)) { 2519 values.add(parser.nextText().trim()); 2520 count--; 2521 } 2522 } 2523 String [] valueStrings = new String[values.size()]; 2524 values.toArray(valueStrings); 2525 restrictions.putStringArray(key, valueStrings); 2526 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2527 restrictions.putBundle(key, readBundleEntry(parser, values)); 2528 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2529 final int outerDepth = parser.getDepth(); 2530 ArrayList<Bundle> bundleList = new ArrayList<>(); 2531 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2532 Bundle childBundle = readBundleEntry(parser, values); 2533 bundleList.add(childBundle); 2534 } 2535 restrictions.putParcelableArray(key, 2536 bundleList.toArray(new Bundle[bundleList.size()])); 2537 } else { 2538 String value = parser.nextText().trim(); 2539 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2540 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2541 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2542 restrictions.putInt(key, Integer.parseInt(value)); 2543 } else { 2544 restrictions.putString(key, value); 2545 } 2546 } 2547 } 2548 } 2549 2550 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2551 throws IOException, XmlPullParserException { 2552 Bundle childBundle = new Bundle(); 2553 final int outerDepth = parser.getDepth(); 2554 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2555 readEntry(childBundle, values, parser); 2556 } 2557 return childBundle; 2558 } 2559 2560 private void writeApplicationRestrictionsLP(String packageName, 2561 Bundle restrictions, int userId) { 2562 AtomicFile restrictionsFile = new AtomicFile( 2563 new File(Environment.getUserSystemDirectory(userId), 2564 packageToRestrictionsFileName(packageName))); 2565 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 2566 } 2567 2568 @VisibleForTesting 2569 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 2570 FileOutputStream fos = null; 2571 try { 2572 fos = restrictionsFile.startWrite(); 2573 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2574 2575 final XmlSerializer serializer = new FastXmlSerializer(); 2576 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2577 serializer.startDocument(null, true); 2578 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2579 2580 serializer.startTag(null, TAG_RESTRICTIONS); 2581 writeBundle(restrictions, serializer); 2582 serializer.endTag(null, TAG_RESTRICTIONS); 2583 2584 serializer.endDocument(); 2585 restrictionsFile.finishWrite(fos); 2586 } catch (Exception e) { 2587 restrictionsFile.failWrite(fos); 2588 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 2589 } 2590 } 2591 2592 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 2593 throws IOException { 2594 for (String key : restrictions.keySet()) { 2595 Object value = restrictions.get(key); 2596 serializer.startTag(null, TAG_ENTRY); 2597 serializer.attribute(null, ATTR_KEY, key); 2598 2599 if (value instanceof Boolean) { 2600 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 2601 serializer.text(value.toString()); 2602 } else if (value instanceof Integer) { 2603 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 2604 serializer.text(value.toString()); 2605 } else if (value == null || value instanceof String) { 2606 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 2607 serializer.text(value != null ? (String) value : ""); 2608 } else if (value instanceof Bundle) { 2609 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2610 writeBundle((Bundle) value, serializer); 2611 } else if (value instanceof Parcelable[]) { 2612 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 2613 Parcelable[] array = (Parcelable[]) value; 2614 for (Parcelable parcelable : array) { 2615 if (!(parcelable instanceof Bundle)) { 2616 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 2617 } 2618 serializer.startTag(null, TAG_ENTRY); 2619 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2620 writeBundle((Bundle) parcelable, serializer); 2621 serializer.endTag(null, TAG_ENTRY); 2622 } 2623 } else { 2624 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 2625 String[] values = (String[]) value; 2626 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 2627 for (String choice : values) { 2628 serializer.startTag(null, TAG_VALUE); 2629 serializer.text(choice != null ? choice : ""); 2630 serializer.endTag(null, TAG_VALUE); 2631 } 2632 } 2633 serializer.endTag(null, TAG_ENTRY); 2634 } 2635 } 2636 2637 @Override 2638 public int getUserSerialNumber(int userHandle) { 2639 synchronized (mUsersLock) { 2640 if (!exists(userHandle)) return -1; 2641 return getUserInfoLU(userHandle).serialNumber; 2642 } 2643 } 2644 2645 @Override 2646 public int getUserHandle(int userSerialNumber) { 2647 synchronized (mUsersLock) { 2648 for (int userId : mUserIds) { 2649 UserInfo info = getUserInfoLU(userId); 2650 if (info != null && info.serialNumber == userSerialNumber) return userId; 2651 } 2652 // Not found 2653 return -1; 2654 } 2655 } 2656 2657 @Override 2658 public long getUserCreationTime(int userHandle) { 2659 int callingUserId = UserHandle.getCallingUserId(); 2660 UserInfo userInfo = null; 2661 synchronized (mUsersLock) { 2662 if (callingUserId == userHandle) { 2663 userInfo = getUserInfoLU(userHandle); 2664 } else { 2665 UserInfo parent = getProfileParentLU(userHandle); 2666 if (parent != null && parent.id == callingUserId) { 2667 userInfo = getUserInfoLU(userHandle); 2668 } 2669 } 2670 } 2671 if (userInfo == null) { 2672 throw new SecurityException("userHandle can only be the calling user or a managed " 2673 + "profile associated with this user"); 2674 } 2675 return userInfo.creationTime; 2676 } 2677 2678 /** 2679 * Caches the list of user ids in an array, adjusting the array size when necessary. 2680 */ 2681 private void updateUserIds() { 2682 int num = 0; 2683 synchronized (mUsersLock) { 2684 final int userSize = mUsers.size(); 2685 for (int i = 0; i < userSize; i++) { 2686 if (!mUsers.valueAt(i).info.partial) { 2687 num++; 2688 } 2689 } 2690 final int[] newUsers = new int[num]; 2691 int n = 0; 2692 for (int i = 0; i < userSize; i++) { 2693 if (!mUsers.valueAt(i).info.partial) { 2694 newUsers[n++] = mUsers.keyAt(i); 2695 } 2696 } 2697 mUserIds = newUsers; 2698 } 2699 } 2700 2701 /** 2702 * Called right before a user is started. This gives us a chance to prepare 2703 * app storage and apply any user restrictions. 2704 */ 2705 public void onBeforeStartUser(int userId) { 2706 final int userSerial = getUserSerialNumber(userId); 2707 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 2708 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE); 2709 2710 if (userId != UserHandle.USER_SYSTEM) { 2711 synchronized (mRestrictionsLock) { 2712 applyUserRestrictionsLR(userId); 2713 } 2714 UserInfo userInfo = getUserInfoNoChecks(userId); 2715 if (userInfo != null && !userInfo.isInitialized()) { 2716 mPm.onBeforeUserStartUninitialized(userId); 2717 } 2718 } 2719 } 2720 2721 /** 2722 * Called right before a user is unlocked. This gives us a chance to prepare 2723 * app storage. 2724 */ 2725 public void onBeforeUnlockUser(@UserIdInt int userId) { 2726 final int userSerial = getUserSerialNumber(userId); 2727 mPm.prepareUserData(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 2728 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE); 2729 } 2730 2731 /** 2732 * Make a note of the last started time of a user and do some cleanup. 2733 * @param userId the user that was just foregrounded 2734 */ 2735 public void onUserLoggedIn(@UserIdInt int userId) { 2736 UserData userData = getUserDataNoChecks(userId); 2737 if (userData == null || userData.info.partial) { 2738 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 2739 return; 2740 } 2741 2742 final long now = System.currentTimeMillis(); 2743 if (now > EPOCH_PLUS_30_YEARS) { 2744 userData.info.lastLoggedInTime = now; 2745 } 2746 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 2747 scheduleWriteUser(userData); 2748 } 2749 2750 /** 2751 * Returns the next available user id, filling in any holes in the ids. 2752 * TODO: May not be a good idea to recycle ids, in case it results in confusion 2753 * for data and battery stats collection, or unexpected cross-talk. 2754 */ 2755 private int getNextAvailableId() { 2756 synchronized (mUsersLock) { 2757 int i = MIN_USER_ID; 2758 while (i < MAX_USER_ID) { 2759 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 2760 return i; 2761 } 2762 i++; 2763 } 2764 } 2765 throw new IllegalStateException("No user id available!"); 2766 } 2767 2768 private String packageToRestrictionsFileName(String packageName) { 2769 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 2770 } 2771 2772 /** 2773 * Enforce that serial number stored in user directory inode matches the 2774 * given expected value. Gracefully sets the serial number if currently 2775 * undefined. 2776 * 2777 * @throws IOException when problem extracting serial number, or serial 2778 * number is mismatched. 2779 */ 2780 public static void enforceSerialNumber(File file, int serialNumber) throws IOException { 2781 final int foundSerial = getSerialNumber(file); 2782 Slog.v(LOG_TAG, "Found " + file + " with serial number " + foundSerial); 2783 2784 if (foundSerial == -1) { 2785 Slog.d(LOG_TAG, "Serial number missing on " + file + "; assuming current is valid"); 2786 try { 2787 setSerialNumber(file, serialNumber); 2788 } catch (IOException e) { 2789 Slog.w(LOG_TAG, "Failed to set serial number on " + file, e); 2790 } 2791 2792 } else if (foundSerial != serialNumber) { 2793 throw new IOException("Found serial number " + foundSerial 2794 + " doesn't match expected " + serialNumber); 2795 } 2796 } 2797 2798 /** 2799 * Set serial number stored in user directory inode. 2800 * 2801 * @throws IOException if serial number was already set 2802 */ 2803 private static void setSerialNumber(File file, int serialNumber) 2804 throws IOException { 2805 try { 2806 final byte[] buf = Integer.toString(serialNumber).getBytes(StandardCharsets.UTF_8); 2807 Os.setxattr(file.getAbsolutePath(), XATTR_SERIAL, buf, OsConstants.XATTR_CREATE); 2808 } catch (ErrnoException e) { 2809 throw e.rethrowAsIOException(); 2810 } 2811 } 2812 2813 /** 2814 * Return serial number stored in user directory inode. 2815 * 2816 * @return parsed serial number, or -1 if not set 2817 */ 2818 private static int getSerialNumber(File file) throws IOException { 2819 try { 2820 final byte[] buf = new byte[256]; 2821 final int len = Os.getxattr(file.getAbsolutePath(), XATTR_SERIAL, buf); 2822 final String serial = new String(buf, 0, len); 2823 try { 2824 return Integer.parseInt(serial); 2825 } catch (NumberFormatException e) { 2826 throw new IOException("Bad serial number: " + serial); 2827 } 2828 } catch (ErrnoException e) { 2829 if (e.errno == OsConstants.ENODATA) { 2830 return -1; 2831 } else { 2832 throw e.rethrowAsIOException(); 2833 } 2834 } 2835 } 2836 2837 @Override 2838 public void setSeedAccountData(int userId, String accountName, String accountType, 2839 PersistableBundle accountOptions, boolean persist) { 2840 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 2841 synchronized (mPackagesLock) { 2842 final UserData userData; 2843 synchronized (mUsersLock) { 2844 userData = getUserDataLU(userId); 2845 if (userData == null) { 2846 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 2847 return; 2848 } 2849 userData.seedAccountName = accountName; 2850 userData.seedAccountType = accountType; 2851 userData.seedAccountOptions = accountOptions; 2852 userData.persistSeedData = persist; 2853 } 2854 if (persist) { 2855 writeUserLP(userData); 2856 } 2857 } 2858 } 2859 2860 @Override 2861 public String getSeedAccountName() throws RemoteException { 2862 checkManageUsersPermission("Cannot get seed account information"); 2863 synchronized (mUsersLock) { 2864 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2865 return userData.seedAccountName; 2866 } 2867 } 2868 2869 @Override 2870 public String getSeedAccountType() throws RemoteException { 2871 checkManageUsersPermission("Cannot get seed account information"); 2872 synchronized (mUsersLock) { 2873 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2874 return userData.seedAccountType; 2875 } 2876 } 2877 2878 @Override 2879 public PersistableBundle getSeedAccountOptions() throws RemoteException { 2880 checkManageUsersPermission("Cannot get seed account information"); 2881 synchronized (mUsersLock) { 2882 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2883 return userData.seedAccountOptions; 2884 } 2885 } 2886 2887 @Override 2888 public void clearSeedAccountData() throws RemoteException { 2889 checkManageUsersPermission("Cannot clear seed account information"); 2890 synchronized (mPackagesLock) { 2891 UserData userData; 2892 synchronized (mUsersLock) { 2893 userData = getUserDataLU(UserHandle.getCallingUserId()); 2894 if (userData == null) return; 2895 userData.clearSeedAccountData(); 2896 } 2897 writeUserLP(userData); 2898 } 2899 } 2900 2901 @Override 2902 public boolean someUserHasSeedAccount(String accountName, String accountType) 2903 throws RemoteException { 2904 checkManageUsersPermission("Cannot check seed account information"); 2905 synchronized (mUsersLock) { 2906 final int userSize = mUsers.size(); 2907 for (int i = 0; i < userSize; i++) { 2908 final UserData data = mUsers.valueAt(i); 2909 if (data.info.isInitialized()) continue; 2910 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 2911 continue; 2912 } 2913 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 2914 continue; 2915 } 2916 return true; 2917 } 2918 } 2919 return false; 2920 } 2921 2922 @Override 2923 public void onShellCommand(FileDescriptor in, FileDescriptor out, 2924 FileDescriptor err, String[] args, ResultReceiver resultReceiver) { 2925 (new Shell()).exec(this, in, out, err, args, resultReceiver); 2926 } 2927 2928 int onShellCommand(Shell shell, String cmd) { 2929 if (cmd == null) { 2930 return shell.handleDefaultCommands(cmd); 2931 } 2932 2933 final PrintWriter pw = shell.getOutPrintWriter(); 2934 try { 2935 switch(cmd) { 2936 case "list": 2937 return runList(pw); 2938 } 2939 } catch (RemoteException e) { 2940 pw.println("Remote exception: " + e); 2941 } 2942 return -1; 2943 } 2944 2945 private int runList(PrintWriter pw) throws RemoteException { 2946 final IActivityManager am = ActivityManagerNative.getDefault(); 2947 final List<UserInfo> users = getUsers(false); 2948 if (users == null) { 2949 pw.println("Error: couldn't get users"); 2950 return 1; 2951 } else { 2952 pw.println("Users:"); 2953 for (int i = 0; i < users.size(); i++) { 2954 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 2955 pw.println("\t" + users.get(i).toString() + running); 2956 } 2957 return 0; 2958 } 2959 } 2960 2961 @Override 2962 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2963 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 2964 != PackageManager.PERMISSION_GRANTED) { 2965 pw.println("Permission Denial: can't dump UserManager from from pid=" 2966 + Binder.getCallingPid() 2967 + ", uid=" + Binder.getCallingUid() 2968 + " without permission " 2969 + android.Manifest.permission.DUMP); 2970 return; 2971 } 2972 2973 long now = System.currentTimeMillis(); 2974 StringBuilder sb = new StringBuilder(); 2975 synchronized (mPackagesLock) { 2976 synchronized (mUsersLock) { 2977 pw.println("Users:"); 2978 for (int i = 0; i < mUsers.size(); i++) { 2979 UserData userData = mUsers.valueAt(i); 2980 if (userData == null) { 2981 continue; 2982 } 2983 UserInfo userInfo = userData.info; 2984 final int userId = userInfo.id; 2985 pw.print(" "); pw.print(userInfo); 2986 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 2987 if (mRemovingUserIds.get(userId)) { 2988 pw.print(" <removing> "); 2989 } 2990 if (userInfo.partial) { 2991 pw.print(" <partial>"); 2992 } 2993 pw.println(); 2994 pw.print(" Created: "); 2995 if (userInfo.creationTime == 0) { 2996 pw.println("<unknown>"); 2997 } else { 2998 sb.setLength(0); 2999 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 3000 sb.append(" ago"); 3001 pw.println(sb); 3002 } 3003 pw.print(" Last logged in: "); 3004 if (userInfo.lastLoggedInTime == 0) { 3005 pw.println("<unknown>"); 3006 } else { 3007 sb.setLength(0); 3008 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 3009 sb.append(" ago"); 3010 pw.println(sb); 3011 } 3012 pw.print(" Last logged in fingerprint: "); 3013 pw.println(userInfo.lastLoggedInFingerprint); 3014 pw.print(" Has profile owner: "); 3015 pw.println(mIsUserManaged.get(userId)); 3016 pw.println(" Restrictions:"); 3017 synchronized (mRestrictionsLock) { 3018 UserRestrictionsUtils.dumpRestrictions( 3019 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 3020 pw.println(" Device policy local restrictions:"); 3021 UserRestrictionsUtils.dumpRestrictions( 3022 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 3023 pw.println(" Effective restrictions:"); 3024 UserRestrictionsUtils.dumpRestrictions( 3025 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 3026 } 3027 3028 if (userData.account != null) { 3029 pw.print(" Account name: " + userData.account); 3030 pw.println(); 3031 } 3032 3033 if (userData.seedAccountName != null) { 3034 pw.print(" Seed account name: " + userData.seedAccountName); 3035 pw.println(); 3036 if (userData.seedAccountType != null) { 3037 pw.print(" account type: " + userData.seedAccountType); 3038 pw.println(); 3039 } 3040 if (userData.seedAccountOptions != null) { 3041 pw.print(" account options exist"); 3042 pw.println(); 3043 } 3044 } 3045 } 3046 } 3047 pw.println(); 3048 pw.println(" Device policy global restrictions:"); 3049 synchronized (mRestrictionsLock) { 3050 UserRestrictionsUtils 3051 .dumpRestrictions(pw, " ", mDevicePolicyGlobalUserRestrictions); 3052 } 3053 pw.println(); 3054 pw.println(" Global restrictions owner id:" + mGlobalRestrictionOwnerUserId); 3055 pw.println(); 3056 pw.println(" Guest restrictions:"); 3057 synchronized (mGuestRestrictions) { 3058 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 3059 } 3060 synchronized (mUsersLock) { 3061 pw.println(); 3062 pw.println(" Device managed: " + mIsDeviceManaged); 3063 } 3064 synchronized (mUserStates) { 3065 pw.println(" Started users state: " + mUserStates); 3066 } 3067 // Dump some capabilities 3068 pw.println(); 3069 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 3070 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 3071 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 3072 com.android.internal.R.bool.config_guestUserEphemeral)); 3073 } 3074 } 3075 3076 final class MainHandler extends Handler { 3077 3078 @Override 3079 public void handleMessage(Message msg) { 3080 switch (msg.what) { 3081 case WRITE_USER_MSG: 3082 removeMessages(WRITE_USER_MSG, msg.obj); 3083 synchronized (mPackagesLock) { 3084 int userId = ((UserData) msg.obj).info.id; 3085 UserData userData = getUserDataNoChecks(userId); 3086 if (userData != null) { 3087 writeUserLP(userData); 3088 } 3089 } 3090 } 3091 } 3092 } 3093 3094 /** 3095 * @param userId 3096 * @return whether the user has been initialized yet 3097 */ 3098 boolean isInitialized(int userId) { 3099 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3100 } 3101 3102 private class LocalService extends UserManagerInternal { 3103 @Override 3104 public void setDevicePolicyUserRestrictions(int userId, @NonNull Bundle localRestrictions, 3105 @Nullable Bundle globalRestrictions) { 3106 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, localRestrictions, 3107 globalRestrictions); 3108 } 3109 3110 @Override 3111 public Bundle getBaseUserRestrictions(int userId) { 3112 synchronized (mRestrictionsLock) { 3113 return mBaseUserRestrictions.get(userId); 3114 } 3115 } 3116 3117 @Override 3118 public void setBaseUserRestrictionsByDpmsForMigration( 3119 int userId, Bundle baseRestrictions) { 3120 synchronized (mRestrictionsLock) { 3121 mBaseUserRestrictions.put(userId, new Bundle(baseRestrictions)); 3122 invalidateEffectiveUserRestrictionsLR(userId); 3123 } 3124 3125 final UserData userData = getUserDataNoChecks(userId); 3126 synchronized (mPackagesLock) { 3127 if (userData != null) { 3128 writeUserLP(userData); 3129 } else { 3130 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3131 } 3132 } 3133 } 3134 3135 @Override 3136 public boolean getUserRestriction(int userId, String key) { 3137 return getUserRestrictions(userId).getBoolean(key); 3138 } 3139 3140 @Override 3141 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3142 synchronized (mUserRestrictionsListeners) { 3143 mUserRestrictionsListeners.add(listener); 3144 } 3145 } 3146 3147 @Override 3148 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3149 synchronized (mUserRestrictionsListeners) { 3150 mUserRestrictionsListeners.remove(listener); 3151 } 3152 } 3153 3154 @Override 3155 public void setDeviceManaged(boolean isManaged) { 3156 synchronized (mUsersLock) { 3157 mIsDeviceManaged = isManaged; 3158 } 3159 } 3160 3161 @Override 3162 public void setUserManaged(int userId, boolean isManaged) { 3163 synchronized (mUsersLock) { 3164 mIsUserManaged.put(userId, isManaged); 3165 } 3166 } 3167 3168 @Override 3169 public void setUserIcon(int userId, Bitmap bitmap) { 3170 long ident = Binder.clearCallingIdentity(); 3171 try { 3172 synchronized (mPackagesLock) { 3173 UserData userData = getUserDataNoChecks(userId); 3174 if (userData == null || userData.info.partial) { 3175 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3176 return; 3177 } 3178 writeBitmapLP(userData.info, bitmap); 3179 writeUserLP(userData); 3180 } 3181 sendUserInfoChangedBroadcast(userId); 3182 } finally { 3183 Binder.restoreCallingIdentity(ident); 3184 } 3185 } 3186 3187 @Override 3188 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3189 synchronized (mUsersLock) { 3190 mForceEphemeralUsers = forceEphemeralUsers; 3191 } 3192 } 3193 3194 @Override 3195 public void removeAllUsers() { 3196 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3197 // Remove the non-system users straight away. 3198 removeNonSystemUsers(); 3199 } else { 3200 // Switch to the system user first and then remove the other users. 3201 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3202 @Override 3203 public void onReceive(Context context, Intent intent) { 3204 int userId = 3205 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3206 if (userId != UserHandle.USER_SYSTEM) { 3207 return; 3208 } 3209 mContext.unregisterReceiver(this); 3210 removeNonSystemUsers(); 3211 } 3212 }; 3213 IntentFilter userSwitchedFilter = new IntentFilter(); 3214 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3215 mContext.registerReceiver( 3216 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3217 3218 // Switch to the system user. 3219 ActivityManager am = 3220 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3221 am.switchUser(UserHandle.USER_SYSTEM); 3222 } 3223 } 3224 3225 @Override 3226 public void onEphemeralUserStop(int userId) { 3227 synchronized (mUsersLock) { 3228 UserInfo userInfo = getUserInfoLU(userId); 3229 if (userInfo != null && userInfo.isEphemeral()) { 3230 // Do not allow switching back to the ephemeral user again as the user is going 3231 // to be deleted. 3232 userInfo.flags |= UserInfo.FLAG_DISABLED; 3233 if (userInfo.isGuest()) { 3234 // Indicate that the guest will be deleted after it stops. 3235 userInfo.guestToRemove = true; 3236 } 3237 } 3238 } 3239 } 3240 3241 @Override 3242 public UserInfo createUserEvenWhenDisallowed(String name, int flags) { 3243 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL); 3244 // Keep this in sync with UserManager.createUser 3245 if (user != null && !user.isAdmin()) { 3246 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3247 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3248 } 3249 return user; 3250 } 3251 3252 @Override 3253 public boolean isUserRunning(int userId) { 3254 synchronized (mUserStates) { 3255 return mUserStates.get(userId, -1) >= 0; 3256 } 3257 } 3258 3259 @Override 3260 public void setUserState(int userId, int userState) { 3261 synchronized (mUserStates) { 3262 mUserStates.put(userId, userState); 3263 } 3264 } 3265 3266 @Override 3267 public void removeUserState(int userId) { 3268 synchronized (mUserStates) { 3269 mUserStates.delete(userId); 3270 } 3271 } 3272 3273 @Override 3274 public boolean isUserUnlockingOrUnlocked(int userId) { 3275 synchronized (mUserStates) { 3276 int state = mUserStates.get(userId, -1); 3277 return (state == UserState.STATE_RUNNING_UNLOCKING) 3278 || (state == UserState.STATE_RUNNING_UNLOCKED); 3279 } 3280 } 3281 } 3282 3283 /* Remove all the users except of the system one. */ 3284 private void removeNonSystemUsers() { 3285 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3286 synchronized (mUsersLock) { 3287 final int userSize = mUsers.size(); 3288 for (int i = 0; i < userSize; i++) { 3289 UserInfo ui = mUsers.valueAt(i).info; 3290 if (ui.id != UserHandle.USER_SYSTEM) { 3291 usersToRemove.add(ui); 3292 } 3293 } 3294 } 3295 for (UserInfo ui: usersToRemove) { 3296 removeUser(ui.id); 3297 } 3298 } 3299 3300 private class Shell extends ShellCommand { 3301 @Override 3302 public int onCommand(String cmd) { 3303 return onShellCommand(this, cmd); 3304 } 3305 3306 @Override 3307 public void onHelp() { 3308 final PrintWriter pw = getOutPrintWriter(); 3309 pw.println("User manager (user) commands:"); 3310 pw.println(" help"); 3311 pw.println(" Print this help text."); 3312 pw.println(""); 3313 pw.println(" list"); 3314 pw.println(" Prints all users on the system."); 3315 } 3316 } 3317 3318 private static void debug(String message) { 3319 Log.d(LOG_TAG, message + 3320 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3321 } 3322} 3323