UserManagerService.java revision 0d88d54c34fef668c6ba74249b7f0003bff823a7
1 2/* 3 * Copyright (C) 2011 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18package com.android.server.pm; 19 20import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS; 21import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK; 22 23import android.Manifest; 24import android.annotation.NonNull; 25import android.annotation.Nullable; 26import android.annotation.UserIdInt; 27import android.app.Activity; 28import android.app.ActivityManager; 29import android.app.ActivityManagerInternal; 30import android.app.ActivityManagerNative; 31import android.app.IActivityManager; 32import android.app.IStopUserCallback; 33import android.app.KeyguardManager; 34import android.content.BroadcastReceiver; 35import android.content.Context; 36import android.content.Intent; 37import android.content.IntentFilter; 38import android.content.IntentSender; 39import android.content.pm.PackageManager; 40import android.content.pm.PackageManager.NameNotFoundException; 41import android.content.pm.UserInfo; 42import android.content.res.Resources; 43import android.graphics.Bitmap; 44import android.os.Binder; 45import android.os.Build; 46import android.os.Bundle; 47import android.os.Debug; 48import android.os.Environment; 49import android.os.FileUtils; 50import android.os.Handler; 51import android.os.IBinder; 52import android.os.IUserManager; 53import android.os.Message; 54import android.os.ParcelFileDescriptor; 55import android.os.Parcelable; 56import android.os.PersistableBundle; 57import android.os.Process; 58import android.os.RemoteException; 59import android.os.ResultReceiver; 60import android.os.SELinux; 61import android.os.ServiceManager; 62import android.os.ShellCommand; 63import android.os.UserHandle; 64import android.os.UserManager; 65import android.os.UserManagerInternal; 66import android.os.UserManagerInternal.UserRestrictionsListener; 67import android.os.storage.StorageManager; 68import android.os.storage.VolumeInfo; 69import android.system.ErrnoException; 70import android.system.Os; 71import android.system.OsConstants; 72import android.util.AtomicFile; 73import android.util.IntArray; 74import android.util.Log; 75import android.util.Slog; 76import android.util.SparseArray; 77import android.util.SparseBooleanArray; 78import android.util.TimeUtils; 79import android.util.Xml; 80 81import com.android.internal.annotations.GuardedBy; 82import com.android.internal.annotations.VisibleForTesting; 83import com.android.internal.app.IAppOpsService; 84import com.android.internal.logging.MetricsLogger; 85import com.android.internal.util.FastXmlSerializer; 86import com.android.internal.util.Preconditions; 87import com.android.internal.util.XmlUtils; 88import com.android.internal.widget.LockPatternUtils; 89import com.android.server.LocalServices; 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_ENTRY = "entry"; 148 private static final String TAG_VALUE = "value"; 149 private static final String TAG_SEED_ACCOUNT_OPTIONS = "seedAccountOptions"; 150 private static final String ATTR_KEY = "key"; 151 private static final String ATTR_VALUE_TYPE = "type"; 152 private static final String ATTR_MULTIPLE = "m"; 153 154 private static final String ATTR_TYPE_STRING_ARRAY = "sa"; 155 private static final String ATTR_TYPE_STRING = "s"; 156 private static final String ATTR_TYPE_BOOLEAN = "b"; 157 private static final String ATTR_TYPE_INTEGER = "i"; 158 private static final String ATTR_TYPE_BUNDLE = "B"; 159 private static final String ATTR_TYPE_BUNDLE_ARRAY = "BA"; 160 161 private static final String USER_INFO_DIR = "system" + File.separator + "users"; 162 private static final String USER_LIST_FILENAME = "userlist.xml"; 163 private static final String USER_PHOTO_FILENAME = "photo.png"; 164 private static final String USER_PHOTO_FILENAME_TMP = USER_PHOTO_FILENAME + ".tmp"; 165 166 private static final String RESTRICTIONS_FILE_PREFIX = "res_"; 167 private static final String XML_SUFFIX = ".xml"; 168 169 private static final int MIN_USER_ID = 10; 170 // We need to keep process uid within Integer.MAX_VALUE. 171 private static final int MAX_USER_ID = Integer.MAX_VALUE / UserHandle.PER_USER_RANGE; 172 173 private static final int USER_VERSION = 6; 174 175 private static final long EPOCH_PLUS_30_YEARS = 30L * 365 * 24 * 60 * 60 * 1000L; // ms 176 177 // Maximum number of managed profiles permitted per user is 1. This cannot be increased 178 // without first making sure that the rest of the framework is prepared for it. 179 private static final int MAX_MANAGED_PROFILES = 1; 180 181 static final int WRITE_USER_MSG = 1; 182 static final int WRITE_USER_DELAY = 2*1000; // 2 seconds 183 184 private static final String XATTR_SERIAL = "user.serial"; 185 186 // Tron counters 187 private static final String TRON_GUEST_CREATED = "users_guest_created"; 188 private static final String TRON_USER_CREATED = "users_user_created"; 189 190 private final Context mContext; 191 private final PackageManagerService mPm; 192 private final Object mPackagesLock; 193 // Short-term lock for internal state, when interaction/sync with PM is not required 194 private final Object mUsersLock = new Object(); 195 private final Object mRestrictionsLock = new Object(); 196 197 private final Handler mHandler; 198 199 private final File mUsersDir; 200 private final File mUserListFile; 201 202 private static final IBinder mUserRestriconToken = new Binder(); 203 204 /** 205 * User-related information that is used for persisting to flash. Only UserInfo is 206 * directly exposed to other system apps. 207 */ 208 private static class UserData { 209 // Basic user information and properties 210 UserInfo info; 211 // Account name used when there is a strong association between a user and an account 212 String account; 213 // Account information for seeding into a newly created user. This could also be 214 // used for login validation for an existing user, for updating their credentials. 215 // In the latter case, data may not need to be persisted as it is only valid for the 216 // current login session. 217 String seedAccountName; 218 String seedAccountType; 219 PersistableBundle seedAccountOptions; 220 // Whether to perist the seed account information to be available after a boot 221 boolean persistSeedData; 222 223 void clearSeedAccountData() { 224 seedAccountName = null; 225 seedAccountType = null; 226 seedAccountOptions = null; 227 persistSeedData = false; 228 } 229 } 230 231 @GuardedBy("mUsersLock") 232 private final SparseArray<UserData> mUsers = new SparseArray<>(); 233 234 /** 235 * User restrictions set via UserManager. This doesn't include restrictions set by 236 * device owner / profile owners. 237 * 238 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 239 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 240 * maybe shared between {@link #mBaseUserRestrictions} and 241 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 242 * (Otherwise we won't be able to detect what restrictions have changed in 243 * {@link #updateUserRestrictionsInternalLR}. 244 */ 245 @GuardedBy("mRestrictionsLock") 246 private final SparseArray<Bundle> mBaseUserRestrictions = new SparseArray<>(); 247 248 /** 249 * Cached user restrictions that are in effect -- i.e. {@link #mBaseUserRestrictions} combined 250 * with device / profile owner restrictions. We'll initialize it lazily; use 251 * {@link #getEffectiveUserRestrictions} to access it. 252 * 253 * DO NOT Change existing {@link Bundle} in it. When changing a restriction for a user, 254 * a new {@link Bundle} should always be created and set. This is because a {@link Bundle} 255 * maybe shared between {@link #mBaseUserRestrictions} and 256 * {@link #mCachedEffectiveUserRestrictions}, but they should always updated separately. 257 * (Otherwise we won't be able to detect what restrictions have changed in 258 * {@link #updateUserRestrictionsInternalLR}. 259 */ 260 @GuardedBy("mRestrictionsLock") 261 private final SparseArray<Bundle> mCachedEffectiveUserRestrictions = new SparseArray<>(); 262 263 /** 264 * User restrictions that have already been applied in 265 * {@link #updateUserRestrictionsInternalLR(Bundle, int)}. We use it to detect restrictions 266 * that have changed since the last 267 * {@link #updateUserRestrictionsInternalLR(Bundle, int)} call. 268 */ 269 @GuardedBy("mRestrictionsLock") 270 private final SparseArray<Bundle> mAppliedUserRestrictions = new SparseArray<>(); 271 272 /** 273 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 274 * that should be applied to all users, including guests. 275 */ 276 @GuardedBy("mRestrictionsLock") 277 private Bundle mDevicePolicyGlobalUserRestrictions; 278 279 /** 280 * User restrictions set by {@link com.android.server.devicepolicy.DevicePolicyManagerService} 281 * for each user. 282 */ 283 @GuardedBy("mRestrictionsLock") 284 private final SparseArray<Bundle> mDevicePolicyLocalUserRestrictions = new SparseArray<>(); 285 286 @GuardedBy("mGuestRestrictions") 287 private final Bundle mGuestRestrictions = new Bundle(); 288 289 /** 290 * Set of user IDs being actively removed. Removed IDs linger in this set 291 * for several seconds to work around a VFS caching issue. 292 */ 293 @GuardedBy("mUsersLock") 294 private final SparseBooleanArray mRemovingUserIds = new SparseBooleanArray(); 295 296 @GuardedBy("mUsersLock") 297 private int[] mUserIds; 298 @GuardedBy("mPackagesLock") 299 private int mNextSerialNumber; 300 private int mUserVersion = 0; 301 302 private IAppOpsService mAppOpsService; 303 304 private final LocalService mLocalService; 305 306 @GuardedBy("mUsersLock") 307 private boolean mIsDeviceManaged; 308 309 @GuardedBy("mUsersLock") 310 private final SparseBooleanArray mIsUserManaged = new SparseBooleanArray(); 311 312 @GuardedBy("mUserRestrictionsListeners") 313 private final ArrayList<UserRestrictionsListener> mUserRestrictionsListeners = 314 new ArrayList<>(); 315 316 private final LockPatternUtils mLockPatternUtils; 317 318 /** 319 * Whether all users should be created ephemeral. 320 */ 321 @GuardedBy("mUsersLock") 322 private boolean mForceEphemeralUsers; 323 324 private static UserManagerService sInstance; 325 326 public static UserManagerService getInstance() { 327 synchronized (UserManagerService.class) { 328 return sInstance; 329 } 330 } 331 332 @VisibleForTesting 333 UserManagerService(File dataDir) { 334 this(null, null, new Object(), dataDir); 335 } 336 337 /** 338 * Called by package manager to create the service. This is closely 339 * associated with the package manager, and the given lock is the 340 * package manager's own lock. 341 */ 342 UserManagerService(Context context, PackageManagerService pm, Object packagesLock) { 343 this(context, pm, packagesLock, Environment.getDataDirectory()); 344 } 345 346 private UserManagerService(Context context, PackageManagerService pm, 347 Object packagesLock, File dataDir) { 348 mContext = context; 349 mPm = pm; 350 mPackagesLock = packagesLock; 351 mHandler = new MainHandler(); 352 synchronized (mPackagesLock) { 353 mUsersDir = new File(dataDir, USER_INFO_DIR); 354 mUsersDir.mkdirs(); 355 // Make zeroth user directory, for services to migrate their files to that location 356 File userZeroDir = new File(mUsersDir, String.valueOf(UserHandle.USER_SYSTEM)); 357 userZeroDir.mkdirs(); 358 FileUtils.setPermissions(mUsersDir.toString(), 359 FileUtils.S_IRWXU | FileUtils.S_IRWXG | FileUtils.S_IROTH | FileUtils.S_IXOTH, 360 -1, -1); 361 mUserListFile = new File(mUsersDir, USER_LIST_FILENAME); 362 initDefaultGuestRestrictions(); 363 readUserListLP(); 364 sInstance = this; 365 } 366 mLocalService = new LocalService(); 367 LocalServices.addService(UserManagerInternal.class, mLocalService); 368 mLockPatternUtils = new LockPatternUtils(mContext); 369 } 370 371 void systemReady() { 372 // Prune out any partially created, partially removed and ephemeral users. 373 ArrayList<UserInfo> partials = new ArrayList<>(); 374 synchronized (mUsersLock) { 375 final int userSize = mUsers.size(); 376 for (int i = 0; i < userSize; i++) { 377 UserInfo ui = mUsers.valueAt(i).info; 378 if ((ui.partial || ui.guestToRemove || ui.isEphemeral()) && i != 0) { 379 partials.add(ui); 380 } 381 } 382 } 383 final int partialsSize = partials.size(); 384 for (int i = 0; i < partialsSize; i++) { 385 UserInfo ui = partials.get(i); 386 Slog.w(LOG_TAG, "Removing partially created user " + ui.id 387 + " (name=" + ui.name + ")"); 388 removeUserState(ui.id); 389 } 390 391 mAppOpsService = IAppOpsService.Stub.asInterface( 392 ServiceManager.getService(Context.APP_OPS_SERVICE)); 393 394 synchronized (mRestrictionsLock) { 395 applyUserRestrictionsLR(UserHandle.USER_SYSTEM); 396 } 397 398 UserInfo currentGuestUser = findCurrentGuestUser(); 399 if (currentGuestUser != null && !hasUserRestriction( 400 UserManager.DISALLOW_CONFIG_WIFI, currentGuestUser.id)) { 401 // If a guest user currently exists, apply the DISALLOW_CONFIG_WIFI option 402 // to it, in case this guest was created in a previous version where this 403 // user restriction was not a default guest restriction. 404 setUserRestriction(UserManager.DISALLOW_CONFIG_WIFI, true, currentGuestUser.id); 405 } 406 } 407 408 @Override 409 public String getUserAccount(int userId) { 410 checkManageUserAndAcrossUsersFullPermission("get user account"); 411 synchronized (mUsersLock) { 412 return mUsers.get(userId).account; 413 } 414 } 415 416 @Override 417 public void setUserAccount(int userId, String accountName) { 418 checkManageUserAndAcrossUsersFullPermission("set user account"); 419 UserData userToUpdate = null; 420 synchronized (mPackagesLock) { 421 synchronized (mUsersLock) { 422 final UserData userData = mUsers.get(userId); 423 if (userData == null) { 424 Slog.e(LOG_TAG, "User not found for setting user account: u" + userId); 425 return; 426 } 427 String currentAccount = userData.account; 428 if (!Objects.equal(currentAccount, accountName)) { 429 userData.account = accountName; 430 userToUpdate = userData; 431 } 432 } 433 434 if (userToUpdate != null) { 435 writeUserLP(userToUpdate); 436 } 437 } 438 } 439 440 @Override 441 public UserInfo getPrimaryUser() { 442 checkManageUsersPermission("query users"); 443 synchronized (mUsersLock) { 444 final int userSize = mUsers.size(); 445 for (int i = 0; i < userSize; i++) { 446 UserInfo ui = mUsers.valueAt(i).info; 447 if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) { 448 return ui; 449 } 450 } 451 } 452 return null; 453 } 454 455 @Override 456 public @NonNull List<UserInfo> getUsers(boolean excludeDying) { 457 checkManageUsersPermission("query users"); 458 synchronized (mUsersLock) { 459 ArrayList<UserInfo> users = new ArrayList<UserInfo>(mUsers.size()); 460 final int userSize = mUsers.size(); 461 for (int i = 0; i < userSize; i++) { 462 UserInfo ui = mUsers.valueAt(i).info; 463 if (ui.partial) { 464 continue; 465 } 466 if (!excludeDying || !mRemovingUserIds.get(ui.id)) { 467 users.add(userWithName(ui)); 468 } 469 } 470 return users; 471 } 472 } 473 474 @Override 475 public List<UserInfo> getProfiles(int userId, boolean enabledOnly) { 476 boolean returnFullInfo = true; 477 if (userId != UserHandle.getCallingUserId()) { 478 checkManageUsersPermission("getting profiles related to user " + userId); 479 } else { 480 returnFullInfo = hasManageUsersPermission(); 481 } 482 final long ident = Binder.clearCallingIdentity(); 483 try { 484 synchronized (mUsersLock) { 485 return getProfilesLU(userId, enabledOnly, returnFullInfo); 486 } 487 } finally { 488 Binder.restoreCallingIdentity(ident); 489 } 490 } 491 492 @Override 493 public int[] getProfileIds(int userId, boolean enabledOnly) { 494 if (userId != UserHandle.getCallingUserId()) { 495 checkManageUsersPermission("getting profiles related to user " + userId); 496 } 497 final long ident = Binder.clearCallingIdentity(); 498 try { 499 synchronized (mUsersLock) { 500 return getProfileIdsLU(userId, enabledOnly).toArray(); 501 } 502 } finally { 503 Binder.restoreCallingIdentity(ident); 504 } 505 } 506 507 /** Assume permissions already checked and caller's identity cleared */ 508 private List<UserInfo> getProfilesLU(int userId, boolean enabledOnly, boolean fullInfo) { 509 IntArray profileIds = getProfileIdsLU(userId, enabledOnly); 510 ArrayList<UserInfo> users = new ArrayList<>(profileIds.size()); 511 for (int i = 0; i < profileIds.size(); i++) { 512 int profileId = profileIds.get(i); 513 UserInfo userInfo = mUsers.get(profileId).info; 514 // If full info is not required - clear PII data to prevent 3P apps from reading it 515 if (!fullInfo) { 516 userInfo = new UserInfo(userInfo); 517 userInfo.name = null; 518 userInfo.iconPath = null; 519 } else { 520 userInfo = userWithName(userInfo); 521 } 522 users.add(userInfo); 523 } 524 return users; 525 } 526 527 /** 528 * Assume permissions already checked and caller's identity cleared 529 */ 530 private IntArray getProfileIdsLU(int userId, boolean enabledOnly) { 531 UserInfo user = getUserInfoLU(userId); 532 IntArray result = new IntArray(mUsers.size()); 533 if (user == null) { 534 // Probably a dying user 535 return result; 536 } 537 final int userSize = mUsers.size(); 538 for (int i = 0; i < userSize; i++) { 539 UserInfo profile = mUsers.valueAt(i).info; 540 if (!isProfileOf(user, profile)) { 541 continue; 542 } 543 if (enabledOnly && !profile.isEnabled()) { 544 continue; 545 } 546 if (mRemovingUserIds.get(profile.id)) { 547 continue; 548 } 549 if (profile.partial) { 550 continue; 551 } 552 result.add(profile.id); 553 } 554 return result; 555 } 556 557 @Override 558 public int getCredentialOwnerProfile(int userHandle) { 559 checkManageUsersPermission("get the credential owner"); 560 if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 561 synchronized (mUsersLock) { 562 UserInfo profileParent = getProfileParentLU(userHandle); 563 if (profileParent != null) { 564 return profileParent.id; 565 } 566 } 567 } 568 569 return userHandle; 570 } 571 572 @Override 573 public boolean isSameProfileGroup(int userId, int otherUserId) { 574 if (userId == otherUserId) return true; 575 checkManageUsersPermission("check if in the same profile group"); 576 synchronized (mPackagesLock) { 577 return isSameProfileGroupLP(userId, otherUserId); 578 } 579 } 580 581 private boolean isSameProfileGroupLP(int userId, int otherUserId) { 582 synchronized (mUsersLock) { 583 UserInfo userInfo = getUserInfoLU(userId); 584 if (userInfo == null || userInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 585 return false; 586 } 587 UserInfo otherUserInfo = getUserInfoLU(otherUserId); 588 if (otherUserInfo == null 589 || otherUserInfo.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 590 return false; 591 } 592 return userInfo.profileGroupId == otherUserInfo.profileGroupId; 593 } 594 } 595 596 @Override 597 public UserInfo getProfileParent(int userHandle) { 598 checkManageUsersPermission("get the profile parent"); 599 synchronized (mUsersLock) { 600 return getProfileParentLU(userHandle); 601 } 602 } 603 604 private UserInfo getProfileParentLU(int userHandle) { 605 UserInfo profile = getUserInfoLU(userHandle); 606 if (profile == null) { 607 return null; 608 } 609 int parentUserId = profile.profileGroupId; 610 if (parentUserId == UserInfo.NO_PROFILE_GROUP_ID) { 611 return null; 612 } else { 613 return getUserInfoLU(parentUserId); 614 } 615 } 616 617 private static boolean isProfileOf(UserInfo user, UserInfo profile) { 618 return user.id == profile.id || 619 (user.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 620 && user.profileGroupId == profile.profileGroupId); 621 } 622 623 private void broadcastProfileAvailabilityChanges(UserHandle profileHandle, 624 UserHandle parentHandle, boolean inQuietMode) { 625 Intent intent = new Intent(); 626 if (inQuietMode) { 627 intent.setAction(Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE); 628 } else { 629 intent.setAction(Intent.ACTION_MANAGED_PROFILE_AVAILABLE); 630 } 631 intent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 632 intent.putExtra(Intent.EXTRA_USER, profileHandle); 633 intent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 634 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 635 mContext.sendBroadcastAsUser(intent, parentHandle); 636 637 //TODO: remove once Launcher3 is updated. 638 Intent oldIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_AVAILABILITY_CHANGED); 639 oldIntent.putExtra(Intent.EXTRA_QUIET_MODE, inQuietMode); 640 oldIntent.putExtra(Intent.EXTRA_USER, profileHandle); 641 oldIntent.putExtra(Intent.EXTRA_USER_HANDLE, profileHandle.getIdentifier()); 642 oldIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 643 mContext.sendBroadcastAsUser(oldIntent, parentHandle); 644 645 } 646 647 @Override 648 public void setQuietModeEnabled(int userHandle, boolean enableQuietMode) { 649 checkManageUsersPermission("silence profile"); 650 boolean changed = false; 651 UserInfo profile, parent; 652 synchronized (mPackagesLock) { 653 synchronized (mUsersLock) { 654 profile = getUserInfoLU(userHandle); 655 parent = getProfileParentLU(userHandle); 656 657 } 658 if (profile == null || !profile.isManagedProfile()) { 659 throw new IllegalArgumentException("User " + userHandle + " is not a profile"); 660 } 661 if (profile.isQuietModeEnabled() != enableQuietMode) { 662 profile.flags ^= UserInfo.FLAG_QUIET_MODE; 663 writeUserLP(getUserDataLU(profile.id)); 664 changed = true; 665 } 666 } 667 if (changed) { 668 long identity = Binder.clearCallingIdentity(); 669 try { 670 if (enableQuietMode) { 671 ActivityManagerNative.getDefault().stopUser(userHandle, /* force */true, null); 672 } else { 673 ActivityManagerNative.getDefault().startUserInBackground(userHandle); 674 } 675 } catch (RemoteException e) { 676 Slog.e(LOG_TAG, "fail to start/stop user for quiet mode", e); 677 } finally { 678 Binder.restoreCallingIdentity(identity); 679 } 680 681 broadcastProfileAvailabilityChanges(profile.getUserHandle(), parent.getUserHandle(), 682 enableQuietMode); 683 } 684 } 685 686 @Override 687 public boolean isQuietModeEnabled(int userHandle) { 688 synchronized (mPackagesLock) { 689 UserInfo info; 690 synchronized (mUsersLock) { 691 info = getUserInfoLU(userHandle); 692 } 693 if (info == null || !info.isManagedProfile()) { 694 return false; 695 } 696 return info.isQuietModeEnabled(); 697 } 698 } 699 700 @Override 701 public boolean trySetQuietModeDisabled(int userHandle, IntentSender target) { 702 if (mContext.getSystemService(StorageManager.class).isUserKeyUnlocked(userHandle) 703 || !mLockPatternUtils.isSecure(userHandle) 704 || !mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle)) { 705 // if the user is already unlocked, no need to show a profile challenge 706 setQuietModeEnabled(userHandle, false); 707 return true; 708 } 709 710 long identity = Binder.clearCallingIdentity(); 711 try { 712 // otherwise, we show a profile challenge to trigger decryption of the user 713 final KeyguardManager km = (KeyguardManager) mContext.getSystemService( 714 Context.KEYGUARD_SERVICE); 715 final Intent unlockIntent = km.createConfirmDeviceCredentialIntent(null, null, 716 userHandle); 717 if (unlockIntent == null) { 718 return false; 719 } 720 if (target != null) { 721 unlockIntent.putExtra(Intent.EXTRA_INTENT, target); 722 } 723 unlockIntent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 724 mContext.startActivity(unlockIntent); 725 } finally { 726 Binder.restoreCallingIdentity(identity); 727 } 728 return false; 729 } 730 731 @Override 732 public void setUserEnabled(int userId) { 733 checkManageUsersPermission("enable user"); 734 synchronized (mPackagesLock) { 735 UserInfo info; 736 synchronized (mUsersLock) { 737 info = getUserInfoLU(userId); 738 } 739 if (info != null && !info.isEnabled()) { 740 info.flags ^= UserInfo.FLAG_DISABLED; 741 writeUserLP(getUserDataLU(info.id)); 742 } 743 } 744 } 745 746 @Override 747 public UserInfo getUserInfo(int userId) { 748 checkManageUsersPermission("query user"); 749 synchronized (mUsersLock) { 750 return userWithName(getUserInfoLU(userId)); 751 } 752 } 753 754 /** 755 * Returns a UserInfo object with the name filled in, for Owner, or the original 756 * if the name is already set. 757 */ 758 private UserInfo userWithName(UserInfo orig) { 759 if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) { 760 UserInfo withName = new UserInfo(orig); 761 withName.name = getOwnerName(); 762 return withName; 763 } else { 764 return orig; 765 } 766 } 767 768 @Override 769 public boolean isManagedProfile(int userId) { 770 int callingUserId = UserHandle.getCallingUserId(); 771 if (callingUserId != userId && !hasManageUsersPermission()) { 772 synchronized (mPackagesLock) { 773 if (!isSameProfileGroupLP(callingUserId, userId)) { 774 throw new SecurityException( 775 "You need MANAGE_USERS permission to: check if specified user a " + 776 "managed profile outside your profile group"); 777 } 778 } 779 } 780 synchronized (mUsersLock) { 781 UserInfo userInfo = getUserInfoLU(userId); 782 return userInfo != null && userInfo.isManagedProfile(); 783 } 784 } 785 786 @Override 787 public boolean isRestricted() { 788 synchronized (mUsersLock) { 789 return getUserInfoLU(UserHandle.getCallingUserId()).isRestricted(); 790 } 791 } 792 793 @Override 794 public boolean canHaveRestrictedProfile(int userId) { 795 checkManageUsersPermission("canHaveRestrictedProfile"); 796 synchronized (mUsersLock) { 797 final UserInfo userInfo = getUserInfoLU(userId); 798 if (userInfo == null || !userInfo.canHaveProfile()) { 799 return false; 800 } 801 if (!userInfo.isAdmin()) { 802 return false; 803 } 804 // restricted profile can be created if there is no DO set and the admin user has no PO; 805 return !mIsDeviceManaged && !mIsUserManaged.get(userId); 806 } 807 } 808 809 /* 810 * Should be locked on mUsers before calling this. 811 */ 812 private UserInfo getUserInfoLU(int userId) { 813 final UserData userData = mUsers.get(userId); 814 // If it is partial and not in the process of being removed, return as unknown user. 815 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 816 Slog.w(LOG_TAG, "getUserInfo: unknown user #" + userId); 817 return null; 818 } 819 return userData != null ? userData.info : null; 820 } 821 822 private UserData getUserDataLU(int userId) { 823 final UserData userData = mUsers.get(userId); 824 // If it is partial and not in the process of being removed, return as unknown user. 825 if (userData != null && userData.info.partial && !mRemovingUserIds.get(userId)) { 826 return null; 827 } 828 return userData; 829 } 830 831 /** 832 * Obtains {@link #mUsersLock} and return UserInfo from mUsers. 833 * <p>No permissions checking or any addition checks are made</p> 834 */ 835 private UserInfo getUserInfoNoChecks(int userId) { 836 synchronized (mUsersLock) { 837 final UserData userData = mUsers.get(userId); 838 return userData != null ? userData.info : null; 839 } 840 } 841 842 /** 843 * Obtains {@link #mUsersLock} and return UserData from mUsers. 844 * <p>No permissions checking or any addition checks are made</p> 845 */ 846 private UserData getUserDataNoChecks(int userId) { 847 synchronized (mUsersLock) { 848 return mUsers.get(userId); 849 } 850 } 851 852 /** Called by PackageManagerService */ 853 public boolean exists(int userId) { 854 return getUserInfoNoChecks(userId) != null; 855 } 856 857 @Override 858 public void setUserName(int userId, String name) { 859 checkManageUsersPermission("rename users"); 860 boolean changed = false; 861 synchronized (mPackagesLock) { 862 UserData userData = getUserDataNoChecks(userId); 863 if (userData == null || userData.info.partial) { 864 Slog.w(LOG_TAG, "setUserName: unknown user #" + userId); 865 return; 866 } 867 if (name != null && !name.equals(userData.info.name)) { 868 userData.info.name = name; 869 writeUserLP(userData); 870 changed = true; 871 } 872 } 873 if (changed) { 874 sendUserInfoChangedBroadcast(userId); 875 } 876 } 877 878 @Override 879 public void setUserIcon(int userId, Bitmap bitmap) { 880 checkManageUsersPermission("update users"); 881 if (hasUserRestriction(UserManager.DISALLOW_SET_USER_ICON, userId)) { 882 Log.w(LOG_TAG, "Cannot set user icon. DISALLOW_SET_USER_ICON is enabled."); 883 return; 884 } 885 mLocalService.setUserIcon(userId, bitmap); 886 } 887 888 889 890 private void sendUserInfoChangedBroadcast(int userId) { 891 Intent changedIntent = new Intent(Intent.ACTION_USER_INFO_CHANGED); 892 changedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 893 changedIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 894 mContext.sendBroadcastAsUser(changedIntent, UserHandle.ALL); 895 } 896 897 @Override 898 public ParcelFileDescriptor getUserIcon(int targetUserId) { 899 String iconPath; 900 synchronized (mPackagesLock) { 901 UserInfo targetUserInfo = getUserInfoNoChecks(targetUserId); 902 if (targetUserInfo == null || targetUserInfo.partial) { 903 Slog.w(LOG_TAG, "getUserIcon: unknown user #" + targetUserId); 904 return null; 905 } 906 907 final int callingUserId = UserHandle.getCallingUserId(); 908 final int callingGroupId = getUserInfoNoChecks(callingUserId).profileGroupId; 909 final int targetGroupId = targetUserInfo.profileGroupId; 910 final boolean sameGroup = (callingGroupId != UserInfo.NO_PROFILE_GROUP_ID 911 && callingGroupId == targetGroupId); 912 if ((callingUserId != targetUserId) && !sameGroup) { 913 checkManageUsersPermission("get the icon of a user who is not related"); 914 } 915 916 if (targetUserInfo.iconPath == null) { 917 return null; 918 } 919 iconPath = targetUserInfo.iconPath; 920 } 921 922 try { 923 return ParcelFileDescriptor.open( 924 new File(iconPath), ParcelFileDescriptor.MODE_READ_ONLY); 925 } catch (FileNotFoundException e) { 926 Log.e(LOG_TAG, "Couldn't find icon file", e); 927 } 928 return null; 929 } 930 931 public void makeInitialized(int userId) { 932 checkManageUsersPermission("makeInitialized"); 933 boolean scheduleWriteUser = false; 934 UserData userData; 935 synchronized (mUsersLock) { 936 userData = mUsers.get(userId); 937 if (userData == null || userData.info.partial) { 938 Slog.w(LOG_TAG, "makeInitialized: unknown user #" + userId); 939 return; 940 } 941 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 942 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 943 scheduleWriteUser = true; 944 } 945 } 946 if (scheduleWriteUser) { 947 scheduleWriteUser(userData); 948 } 949 } 950 951 /** 952 * If default guest restrictions haven't been initialized yet, add the basic 953 * restrictions. 954 */ 955 private void initDefaultGuestRestrictions() { 956 synchronized (mGuestRestrictions) { 957 if (mGuestRestrictions.isEmpty()) { 958 mGuestRestrictions.putBoolean(UserManager.DISALLOW_CONFIG_WIFI, true); 959 mGuestRestrictions.putBoolean(UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 960 mGuestRestrictions.putBoolean(UserManager.DISALLOW_OUTGOING_CALLS, true); 961 mGuestRestrictions.putBoolean(UserManager.DISALLOW_SMS, true); 962 } 963 } 964 } 965 966 @Override 967 public Bundle getDefaultGuestRestrictions() { 968 checkManageUsersPermission("getDefaultGuestRestrictions"); 969 synchronized (mGuestRestrictions) { 970 return new Bundle(mGuestRestrictions); 971 } 972 } 973 974 @Override 975 public void setDefaultGuestRestrictions(Bundle restrictions) { 976 checkManageUsersPermission("setDefaultGuestRestrictions"); 977 synchronized (mGuestRestrictions) { 978 mGuestRestrictions.clear(); 979 mGuestRestrictions.putAll(restrictions); 980 } 981 synchronized (mPackagesLock) { 982 writeUserListLP(); 983 } 984 } 985 986 /** 987 * See {@link UserManagerInternal#setDevicePolicyUserRestrictions(int, Bundle, Bundle)} 988 */ 989 void setDevicePolicyUserRestrictionsInner(int userId, @NonNull Bundle local, 990 @Nullable Bundle global) { 991 Preconditions.checkNotNull(local); 992 boolean globalChanged = false; 993 boolean localChanged; 994 synchronized (mRestrictionsLock) { 995 if (global != null) { 996 // Update global. 997 globalChanged = !UserRestrictionsUtils.areEqual( 998 mDevicePolicyGlobalUserRestrictions, global); 999 if (globalChanged) { 1000 mDevicePolicyGlobalUserRestrictions = global; 1001 } 1002 } 1003 { 1004 // Update local. 1005 final Bundle prev = mDevicePolicyLocalUserRestrictions.get(userId); 1006 localChanged = !UserRestrictionsUtils.areEqual(prev, local); 1007 if (localChanged) { 1008 mDevicePolicyLocalUserRestrictions.put(userId, local); 1009 } 1010 } 1011 } 1012 if (DBG) { 1013 Log.d(LOG_TAG, "setDevicePolicyUserRestrictions: userId=" + userId 1014 + " global=" + global + (globalChanged ? " (changed)" : "") 1015 + " local=" + local + (localChanged ? " (changed)" : "") 1016 ); 1017 } 1018 // Don't call them within the mRestrictionsLock. 1019 synchronized (mPackagesLock) { 1020 if (localChanged) { 1021 writeUserLP(getUserDataNoChecks(userId)); 1022 } 1023 if (globalChanged) { 1024 writeUserListLP(); 1025 } 1026 } 1027 1028 synchronized (mRestrictionsLock) { 1029 if (globalChanged) { 1030 applyUserRestrictionsForAllUsersLR(); 1031 } else if (localChanged) { 1032 applyUserRestrictionsLR(userId); 1033 } 1034 } 1035 } 1036 1037 @GuardedBy("mRestrictionsLock") 1038 private Bundle computeEffectiveUserRestrictionsLR(int userId) { 1039 final Bundle baseRestrictions = 1040 UserRestrictionsUtils.nonNull(mBaseUserRestrictions.get(userId)); 1041 final Bundle global = mDevicePolicyGlobalUserRestrictions; 1042 final Bundle local = mDevicePolicyLocalUserRestrictions.get(userId); 1043 1044 if (UserRestrictionsUtils.isEmpty(global) && UserRestrictionsUtils.isEmpty(local)) { 1045 // Common case first. 1046 return baseRestrictions; 1047 } 1048 final Bundle effective = UserRestrictionsUtils.clone(baseRestrictions); 1049 UserRestrictionsUtils.merge(effective, global); 1050 UserRestrictionsUtils.merge(effective, local); 1051 1052 return effective; 1053 } 1054 1055 @GuardedBy("mRestrictionsLock") 1056 private void invalidateEffectiveUserRestrictionsLR(int userId) { 1057 if (DBG) { 1058 Log.d(LOG_TAG, "invalidateEffectiveUserRestrictions userId=" + userId); 1059 } 1060 mCachedEffectiveUserRestrictions.remove(userId); 1061 } 1062 1063 private Bundle getEffectiveUserRestrictions(int userId) { 1064 synchronized (mRestrictionsLock) { 1065 Bundle restrictions = mCachedEffectiveUserRestrictions.get(userId); 1066 if (restrictions == null) { 1067 restrictions = computeEffectiveUserRestrictionsLR(userId); 1068 mCachedEffectiveUserRestrictions.put(userId, restrictions); 1069 } 1070 return restrictions; 1071 } 1072 } 1073 1074 /** @return a specific user restriction that's in effect currently. */ 1075 @Override 1076 public boolean hasUserRestriction(String restrictionKey, int userId) { 1077 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1078 return false; 1079 } 1080 Bundle restrictions = getEffectiveUserRestrictions(userId); 1081 return restrictions != null && restrictions.getBoolean(restrictionKey); 1082 } 1083 1084 /** 1085 * @return UserRestrictions that are in effect currently. This always returns a new 1086 * {@link Bundle}. 1087 */ 1088 @Override 1089 public Bundle getUserRestrictions(int userId) { 1090 return UserRestrictionsUtils.clone(getEffectiveUserRestrictions(userId)); 1091 } 1092 1093 @Override 1094 public boolean hasBaseUserRestriction(String restrictionKey, int userId) { 1095 checkManageUsersPermission("hasBaseUserRestriction"); 1096 if (!UserRestrictionsUtils.isValidRestriction(restrictionKey)) { 1097 return false; 1098 } 1099 synchronized (mRestrictionsLock) { 1100 Bundle bundle = mBaseUserRestrictions.get(userId); 1101 return (bundle != null && bundle.getBoolean(restrictionKey, false)); 1102 } 1103 } 1104 1105 @Override 1106 public void setUserRestriction(String key, boolean value, int userId) { 1107 checkManageUsersPermission("setUserRestriction"); 1108 if (!UserRestrictionsUtils.isValidRestriction(key)) { 1109 return; 1110 } 1111 synchronized (mRestrictionsLock) { 1112 // Note we can't modify Bundles stored in mBaseUserRestrictions directly, so create 1113 // a copy. 1114 final Bundle newRestrictions = UserRestrictionsUtils.clone( 1115 mBaseUserRestrictions.get(userId)); 1116 newRestrictions.putBoolean(key, value); 1117 1118 updateUserRestrictionsInternalLR(newRestrictions, userId); 1119 } 1120 } 1121 1122 /** 1123 * Optionally updating user restrictions, calculate the effective user restrictions and also 1124 * propagate to other services and system settings. 1125 * 1126 * @param newRestrictions User restrictions to set. 1127 * If null, will not update user restrictions and only does the propagation. 1128 * @param userId target user ID. 1129 */ 1130 @GuardedBy("mRestrictionsLock") 1131 private void updateUserRestrictionsInternalLR( 1132 @Nullable Bundle newRestrictions, int userId) { 1133 1134 final Bundle prevAppliedRestrictions = UserRestrictionsUtils.nonNull( 1135 mAppliedUserRestrictions.get(userId)); 1136 1137 // Update base restrictions. 1138 if (newRestrictions != null) { 1139 // If newRestrictions == the current one, it's probably a bug. 1140 final Bundle prevBaseRestrictions = mBaseUserRestrictions.get(userId); 1141 1142 Preconditions.checkState(prevBaseRestrictions != newRestrictions); 1143 Preconditions.checkState(mCachedEffectiveUserRestrictions.get(userId) 1144 != newRestrictions); 1145 1146 if (!UserRestrictionsUtils.areEqual(prevBaseRestrictions, newRestrictions)) { 1147 mBaseUserRestrictions.put(userId, newRestrictions); 1148 scheduleWriteUser(getUserDataNoChecks(userId)); 1149 } 1150 } 1151 1152 final Bundle effective = computeEffectiveUserRestrictionsLR(userId); 1153 1154 mCachedEffectiveUserRestrictions.put(userId, effective); 1155 1156 // Apply the new restrictions. 1157 if (DBG) { 1158 debug("Applying user restrictions: userId=" + userId 1159 + " new=" + effective + " prev=" + prevAppliedRestrictions); 1160 } 1161 1162 if (mAppOpsService != null) { // We skip it until system-ready. 1163 final long token = Binder.clearCallingIdentity(); 1164 try { 1165 mAppOpsService.setUserRestrictions(effective, mUserRestriconToken, userId); 1166 } catch (RemoteException e) { 1167 Log.w(LOG_TAG, "Unable to notify AppOpsService of UserRestrictions"); 1168 } finally { 1169 Binder.restoreCallingIdentity(token); 1170 } 1171 } 1172 1173 propagateUserRestrictionsLR(userId, effective, prevAppliedRestrictions); 1174 1175 mAppliedUserRestrictions.put(userId, new Bundle(effective)); 1176 } 1177 1178 private void propagateUserRestrictionsLR(final int userId, 1179 Bundle newRestrictions, Bundle prevRestrictions) { 1180 // Note this method doesn't touch any state, meaning it doesn't require mRestrictionsLock 1181 // actually, but we still need some kind of synchronization otherwise we might end up 1182 // calling listeners out-of-order, thus "LR". 1183 1184 if (UserRestrictionsUtils.areEqual(newRestrictions, prevRestrictions)) { 1185 return; 1186 } 1187 1188 final Bundle newRestrictionsFinal = new Bundle(newRestrictions); 1189 final Bundle prevRestrictionsFinal = new Bundle(prevRestrictions); 1190 1191 mHandler.post(new Runnable() { 1192 @Override 1193 public void run() { 1194 UserRestrictionsUtils.applyUserRestrictions( 1195 mContext, userId, newRestrictionsFinal, prevRestrictionsFinal); 1196 1197 final UserRestrictionsListener[] listeners; 1198 synchronized (mUserRestrictionsListeners) { 1199 listeners = new UserRestrictionsListener[mUserRestrictionsListeners.size()]; 1200 mUserRestrictionsListeners.toArray(listeners); 1201 } 1202 for (int i = 0; i < listeners.length; i++) { 1203 listeners[i].onUserRestrictionsChanged(userId, 1204 newRestrictionsFinal, prevRestrictionsFinal); 1205 } 1206 } 1207 }); 1208 } 1209 1210 // Package private for the inner class. 1211 void applyUserRestrictionsLR(int userId) { 1212 updateUserRestrictionsInternalLR(null, userId); 1213 } 1214 1215 @GuardedBy("mRestrictionsLock") 1216 // Package private for the inner class. 1217 void applyUserRestrictionsForAllUsersLR() { 1218 if (DBG) { 1219 debug("applyUserRestrictionsForAllUsersLR"); 1220 } 1221 // First, invalidate all cached values. 1222 mCachedEffectiveUserRestrictions.clear(); 1223 1224 // We don't want to call into ActivityManagerNative while taking a lock, so we'll call 1225 // it on a handler. 1226 final Runnable r = new Runnable() { 1227 @Override 1228 public void run() { 1229 // Then get the list of running users. 1230 final int[] runningUsers; 1231 try { 1232 runningUsers = ActivityManagerNative.getDefault().getRunningUserIds(); 1233 } catch (RemoteException e) { 1234 Log.w(LOG_TAG, "Unable to access ActivityManagerNative"); 1235 return; 1236 } 1237 // Then re-calculate the effective restrictions and apply, only for running users. 1238 // It's okay if a new user has started after the getRunningUserIds() call, 1239 // because we'll do the same thing (re-calculate the restrictions and apply) 1240 // when we start a user. 1241 synchronized (mRestrictionsLock) { 1242 for (int i = 0; i < runningUsers.length; i++) { 1243 applyUserRestrictionsLR(runningUsers[i]); 1244 } 1245 } 1246 } 1247 }; 1248 mHandler.post(r); 1249 } 1250 1251 /** 1252 * Check if we've hit the limit of how many users can be created. 1253 */ 1254 private boolean isUserLimitReached() { 1255 int count; 1256 synchronized (mUsersLock) { 1257 count = getAliveUsersExcludingGuestsCountLU(); 1258 } 1259 return count >= UserManager.getMaxSupportedUsers(); 1260 } 1261 1262 @Override 1263 public boolean canAddMoreManagedProfiles(int userId, boolean allowedToRemoveOne) { 1264 checkManageUsersPermission("check if more managed profiles can be added."); 1265 if (ActivityManager.isLowRamDeviceStatic()) { 1266 return false; 1267 } 1268 if (!mContext.getPackageManager().hasSystemFeature( 1269 PackageManager.FEATURE_MANAGED_USERS)) { 1270 return false; 1271 } 1272 // Limit number of managed profiles that can be created 1273 final int managedProfilesCount = getProfiles(userId, true).size() - 1; 1274 final int profilesRemovedCount = managedProfilesCount > 0 && allowedToRemoveOne ? 1 : 0; 1275 if (managedProfilesCount - profilesRemovedCount >= MAX_MANAGED_PROFILES) { 1276 return false; 1277 } 1278 synchronized(mUsersLock) { 1279 UserInfo userInfo = getUserInfoLU(userId); 1280 if (!userInfo.canHaveProfile()) { 1281 return false; 1282 } 1283 int usersCountAfterRemoving = getAliveUsersExcludingGuestsCountLU() 1284 - profilesRemovedCount; 1285 // We allow creating a managed profile in the special case where there is only one user. 1286 return usersCountAfterRemoving == 1 1287 || usersCountAfterRemoving < UserManager.getMaxSupportedUsers(); 1288 } 1289 } 1290 1291 private int getAliveUsersExcludingGuestsCountLU() { 1292 int aliveUserCount = 0; 1293 final int totalUserCount = mUsers.size(); 1294 // Skip over users being removed 1295 for (int i = 0; i < totalUserCount; i++) { 1296 UserInfo user = mUsers.valueAt(i).info; 1297 if (!mRemovingUserIds.get(user.id) 1298 && !user.isGuest() && !user.partial) { 1299 aliveUserCount++; 1300 } 1301 } 1302 return aliveUserCount; 1303 } 1304 1305 /** 1306 * Enforces that only the system UID or root's UID or apps that have the 1307 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} and 1308 * {@link android.Manifest.permission#INTERACT_ACROSS_USERS_FULL INTERACT_ACROSS_USERS_FULL} 1309 * permissions can make certain calls to the UserManager. 1310 * 1311 * @param message used as message if SecurityException is thrown 1312 * @throws SecurityException if the caller does not have enough privilege. 1313 */ 1314 private static final void checkManageUserAndAcrossUsersFullPermission(String message) { 1315 final int uid = Binder.getCallingUid(); 1316 if (uid != Process.SYSTEM_UID && uid != 0 1317 && ActivityManager.checkComponentPermission( 1318 Manifest.permission.MANAGE_USERS, 1319 uid, -1, true) != PackageManager.PERMISSION_GRANTED 1320 && ActivityManager.checkComponentPermission( 1321 Manifest.permission.INTERACT_ACROSS_USERS_FULL, 1322 uid, -1, true) != PackageManager.PERMISSION_GRANTED) { 1323 throw new SecurityException( 1324 "You need MANAGE_USERS and INTERACT_ACROSS_USERS_FULL permission to: " 1325 + message); 1326 } 1327 } 1328 1329 /** 1330 * Enforces that only the system UID or root's UID or apps that have the 1331 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS} 1332 * permission can make certain calls to the UserManager. 1333 * 1334 * @param message used as message if SecurityException is thrown 1335 * @throws SecurityException if the caller is not system or root 1336 * @see #hasManageUsersPermission() 1337 */ 1338 private static final void checkManageUsersPermission(String message) { 1339 if (!hasManageUsersPermission()) { 1340 throw new SecurityException("You need MANAGE_USERS permission to: " + message); 1341 } 1342 } 1343 1344 /** 1345 * @return whether the calling UID is system UID or root's UID or the calling app has the 1346 * {@link android.Manifest.permission#MANAGE_USERS MANAGE_USERS}. 1347 */ 1348 private static final boolean hasManageUsersPermission() { 1349 final int callingUid = Binder.getCallingUid(); 1350 return UserHandle.isSameApp(callingUid, Process.SYSTEM_UID) 1351 || callingUid == Process.ROOT_UID 1352 || ActivityManager.checkComponentPermission( 1353 android.Manifest.permission.MANAGE_USERS, 1354 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED; 1355 } 1356 1357 /** 1358 * Enforces that only the system UID or root's UID (on any user) can make certain calls to the 1359 * UserManager. 1360 * 1361 * @param message used as message if SecurityException is thrown 1362 * @throws SecurityException if the caller is not system or root 1363 */ 1364 private static void checkSystemOrRoot(String message) { 1365 final int uid = Binder.getCallingUid(); 1366 if (!UserHandle.isSameApp(uid, Process.SYSTEM_UID) && uid != Process.ROOT_UID) { 1367 throw new SecurityException("Only system may: " + message); 1368 } 1369 } 1370 1371 private void writeBitmapLP(UserInfo info, Bitmap bitmap) { 1372 try { 1373 File dir = new File(mUsersDir, Integer.toString(info.id)); 1374 File file = new File(dir, USER_PHOTO_FILENAME); 1375 File tmp = new File(dir, USER_PHOTO_FILENAME_TMP); 1376 if (!dir.exists()) { 1377 dir.mkdir(); 1378 FileUtils.setPermissions( 1379 dir.getPath(), 1380 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 1381 -1, -1); 1382 } 1383 FileOutputStream os; 1384 if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, os = new FileOutputStream(tmp)) 1385 && tmp.renameTo(file) && SELinux.restorecon(file)) { 1386 info.iconPath = file.getAbsolutePath(); 1387 } 1388 try { 1389 os.close(); 1390 } catch (IOException ioe) { 1391 // What the ... ! 1392 } 1393 tmp.delete(); 1394 } catch (FileNotFoundException e) { 1395 Slog.w(LOG_TAG, "Error setting photo for user ", e); 1396 } 1397 } 1398 1399 /** 1400 * Returns an array of user ids. This array is cached here for quick access, so do not modify or 1401 * cache it elsewhere. 1402 * @return the array of user ids. 1403 */ 1404 public int[] getUserIds() { 1405 synchronized (mUsersLock) { 1406 return mUserIds; 1407 } 1408 } 1409 1410 private void readUserListLP() { 1411 if (!mUserListFile.exists()) { 1412 fallbackToSingleUserLP(); 1413 return; 1414 } 1415 FileInputStream fis = null; 1416 AtomicFile userListFile = new AtomicFile(mUserListFile); 1417 try { 1418 fis = userListFile.openRead(); 1419 XmlPullParser parser = Xml.newPullParser(); 1420 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1421 int type; 1422 while ((type = parser.next()) != XmlPullParser.START_TAG 1423 && type != XmlPullParser.END_DOCUMENT) { 1424 // Skip 1425 } 1426 1427 if (type != XmlPullParser.START_TAG) { 1428 Slog.e(LOG_TAG, "Unable to read user list"); 1429 fallbackToSingleUserLP(); 1430 return; 1431 } 1432 1433 mNextSerialNumber = -1; 1434 if (parser.getName().equals(TAG_USERS)) { 1435 String lastSerialNumber = parser.getAttributeValue(null, ATTR_NEXT_SERIAL_NO); 1436 if (lastSerialNumber != null) { 1437 mNextSerialNumber = Integer.parseInt(lastSerialNumber); 1438 } 1439 String versionNumber = parser.getAttributeValue(null, ATTR_USER_VERSION); 1440 if (versionNumber != null) { 1441 mUserVersion = Integer.parseInt(versionNumber); 1442 } 1443 } 1444 1445 final Bundle newDevicePolicyGlobalUserRestrictions = new Bundle(); 1446 1447 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) { 1448 if (type == XmlPullParser.START_TAG) { 1449 final String name = parser.getName(); 1450 if (name.equals(TAG_USER)) { 1451 String id = parser.getAttributeValue(null, ATTR_ID); 1452 1453 UserData userData = readUserLP(Integer.parseInt(id)); 1454 1455 if (userData != null) { 1456 synchronized (mUsersLock) { 1457 mUsers.put(userData.info.id, userData); 1458 if (mNextSerialNumber < 0 1459 || mNextSerialNumber <= userData.info.id) { 1460 mNextSerialNumber = userData.info.id + 1; 1461 } 1462 } 1463 } 1464 } else if (name.equals(TAG_GUEST_RESTRICTIONS)) { 1465 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1466 && type != XmlPullParser.END_TAG) { 1467 if (type == XmlPullParser.START_TAG) { 1468 if (parser.getName().equals(TAG_RESTRICTIONS)) { 1469 synchronized (mGuestRestrictions) { 1470 UserRestrictionsUtils 1471 .readRestrictions(parser, mGuestRestrictions); 1472 } 1473 } else if (parser.getName().equals(TAG_DEVICE_POLICY_RESTRICTIONS) 1474 ) { 1475 UserRestrictionsUtils.readRestrictions(parser, 1476 newDevicePolicyGlobalUserRestrictions); 1477 } 1478 break; 1479 } 1480 } 1481 } 1482 } 1483 } 1484 synchronized (mRestrictionsLock) { 1485 mDevicePolicyGlobalUserRestrictions = newDevicePolicyGlobalUserRestrictions; 1486 } 1487 updateUserIds(); 1488 upgradeIfNecessaryLP(); 1489 } catch (IOException | XmlPullParserException e) { 1490 fallbackToSingleUserLP(); 1491 } finally { 1492 IoUtils.closeQuietly(fis); 1493 } 1494 } 1495 1496 /** 1497 * Upgrade steps between versions, either for fixing bugs or changing the data format. 1498 */ 1499 private void upgradeIfNecessaryLP() { 1500 final int originalVersion = mUserVersion; 1501 int userVersion = mUserVersion; 1502 if (userVersion < 1) { 1503 // Assign a proper name for the owner, if not initialized correctly before 1504 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1505 if ("Primary".equals(userData.info.name)) { 1506 userData.info.name = 1507 mContext.getResources().getString(com.android.internal.R.string.owner_name); 1508 scheduleWriteUser(userData); 1509 } 1510 userVersion = 1; 1511 } 1512 1513 if (userVersion < 2) { 1514 // Owner should be marked as initialized 1515 UserData userData = getUserDataNoChecks(UserHandle.USER_SYSTEM); 1516 if ((userData.info.flags & UserInfo.FLAG_INITIALIZED) == 0) { 1517 userData.info.flags |= UserInfo.FLAG_INITIALIZED; 1518 scheduleWriteUser(userData); 1519 } 1520 userVersion = 2; 1521 } 1522 1523 1524 if (userVersion < 4) { 1525 userVersion = 4; 1526 } 1527 1528 if (userVersion < 5) { 1529 initDefaultGuestRestrictions(); 1530 userVersion = 5; 1531 } 1532 1533 if (userVersion < 6) { 1534 final boolean splitSystemUser = UserManager.isSplitSystemUser(); 1535 synchronized (mUsersLock) { 1536 for (int i = 0; i < mUsers.size(); i++) { 1537 UserData userData = mUsers.valueAt(i); 1538 // In non-split mode, only user 0 can have restricted profiles 1539 if (!splitSystemUser && userData.info.isRestricted() 1540 && (userData.info.restrictedProfileParentId 1541 == UserInfo.NO_PROFILE_GROUP_ID)) { 1542 userData.info.restrictedProfileParentId = UserHandle.USER_SYSTEM; 1543 scheduleWriteUser(userData); 1544 } 1545 } 1546 } 1547 userVersion = 6; 1548 } 1549 1550 if (userVersion < USER_VERSION) { 1551 Slog.w(LOG_TAG, "User version " + mUserVersion + " didn't upgrade as expected to " 1552 + USER_VERSION); 1553 } else { 1554 mUserVersion = userVersion; 1555 1556 if (originalVersion < mUserVersion) { 1557 writeUserListLP(); 1558 } 1559 } 1560 } 1561 1562 private void fallbackToSingleUserLP() { 1563 int flags = UserInfo.FLAG_INITIALIZED; 1564 // In split system user mode, the admin and primary flags are assigned to the first human 1565 // user. 1566 if (!UserManager.isSplitSystemUser()) { 1567 flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY; 1568 } 1569 // Create the system user 1570 UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags); 1571 UserData userData = new UserData(); 1572 userData.info = system; 1573 synchronized (mUsersLock) { 1574 mUsers.put(system.id, userData); 1575 } 1576 mNextSerialNumber = MIN_USER_ID; 1577 mUserVersion = USER_VERSION; 1578 1579 Bundle restrictions = new Bundle(); 1580 synchronized (mRestrictionsLock) { 1581 mBaseUserRestrictions.append(UserHandle.USER_SYSTEM, restrictions); 1582 } 1583 1584 updateUserIds(); 1585 initDefaultGuestRestrictions(); 1586 1587 writeUserLP(userData); 1588 writeUserListLP(); 1589 } 1590 1591 private String getOwnerName() { 1592 return mContext.getResources().getString(com.android.internal.R.string.owner_name); 1593 } 1594 1595 private void scheduleWriteUser(UserData UserData) { 1596 if (DBG) { 1597 debug("scheduleWriteUser"); 1598 } 1599 // No need to wrap it within a lock -- worst case, we'll just post the same message 1600 // twice. 1601 if (!mHandler.hasMessages(WRITE_USER_MSG, UserData)) { 1602 Message msg = mHandler.obtainMessage(WRITE_USER_MSG, UserData); 1603 mHandler.sendMessageDelayed(msg, WRITE_USER_DELAY); 1604 } 1605 } 1606 1607 /* 1608 * Writes the user file in this format: 1609 * 1610 * <user flags="20039023" id="0"> 1611 * <name>Primary</name> 1612 * </user> 1613 */ 1614 private void writeUserLP(UserData userData) { 1615 if (DBG) { 1616 debug("writeUserLP " + userData); 1617 } 1618 FileOutputStream fos = null; 1619 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userData.info.id + XML_SUFFIX)); 1620 try { 1621 fos = userFile.startWrite(); 1622 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1623 1624 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1625 final XmlSerializer serializer = new FastXmlSerializer(); 1626 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1627 serializer.startDocument(null, true); 1628 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1629 1630 final UserInfo userInfo = userData.info; 1631 serializer.startTag(null, TAG_USER); 1632 serializer.attribute(null, ATTR_ID, Integer.toString(userInfo.id)); 1633 serializer.attribute(null, ATTR_SERIAL_NO, Integer.toString(userInfo.serialNumber)); 1634 serializer.attribute(null, ATTR_FLAGS, Integer.toString(userInfo.flags)); 1635 serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime)); 1636 serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME, 1637 Long.toString(userInfo.lastLoggedInTime)); 1638 if (userInfo.lastLoggedInFingerprint != null) { 1639 serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT, 1640 userInfo.lastLoggedInFingerprint); 1641 } 1642 if (userInfo.iconPath != null) { 1643 serializer.attribute(null, ATTR_ICON_PATH, userInfo.iconPath); 1644 } 1645 if (userInfo.partial) { 1646 serializer.attribute(null, ATTR_PARTIAL, "true"); 1647 } 1648 if (userInfo.guestToRemove) { 1649 serializer.attribute(null, ATTR_GUEST_TO_REMOVE, "true"); 1650 } 1651 if (userInfo.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID) { 1652 serializer.attribute(null, ATTR_PROFILE_GROUP_ID, 1653 Integer.toString(userInfo.profileGroupId)); 1654 } 1655 if (userInfo.restrictedProfileParentId != UserInfo.NO_PROFILE_GROUP_ID) { 1656 serializer.attribute(null, ATTR_RESTRICTED_PROFILE_PARENT_ID, 1657 Integer.toString(userInfo.restrictedProfileParentId)); 1658 } 1659 // Write seed data 1660 if (userData.persistSeedData) { 1661 if (userData.seedAccountName != null) { 1662 serializer.attribute(null, ATTR_SEED_ACCOUNT_NAME, userData.seedAccountName); 1663 } 1664 if (userData.seedAccountType != null) { 1665 serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType); 1666 } 1667 } 1668 if (userInfo.name != null) { 1669 serializer.startTag(null, TAG_NAME); 1670 serializer.text(userInfo.name); 1671 serializer.endTag(null, TAG_NAME); 1672 } 1673 synchronized (mRestrictionsLock) { 1674 UserRestrictionsUtils.writeRestrictions(serializer, 1675 mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS); 1676 UserRestrictionsUtils.writeRestrictions(serializer, 1677 mDevicePolicyLocalUserRestrictions.get(userInfo.id), 1678 TAG_DEVICE_POLICY_RESTRICTIONS); 1679 } 1680 1681 if (userData.account != null) { 1682 serializer.startTag(null, TAG_ACCOUNT); 1683 serializer.text(userData.account); 1684 serializer.endTag(null, TAG_ACCOUNT); 1685 } 1686 1687 if (userData.persistSeedData && userData.seedAccountOptions != null) { 1688 serializer.startTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1689 userData.seedAccountOptions.saveToXml(serializer); 1690 serializer.endTag(null, TAG_SEED_ACCOUNT_OPTIONS); 1691 } 1692 serializer.endTag(null, TAG_USER); 1693 1694 serializer.endDocument(); 1695 userFile.finishWrite(fos); 1696 } catch (Exception ioe) { 1697 Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe); 1698 userFile.failWrite(fos); 1699 } 1700 } 1701 1702 /* 1703 * Writes the user list file in this format: 1704 * 1705 * <users nextSerialNumber="3"> 1706 * <user id="0"></user> 1707 * <user id="2"></user> 1708 * </users> 1709 */ 1710 private void writeUserListLP() { 1711 if (DBG) { 1712 debug("writeUserList"); 1713 } 1714 FileOutputStream fos = null; 1715 AtomicFile userListFile = new AtomicFile(mUserListFile); 1716 try { 1717 fos = userListFile.startWrite(); 1718 final BufferedOutputStream bos = new BufferedOutputStream(fos); 1719 1720 // XmlSerializer serializer = XmlUtils.serializerInstance(); 1721 final XmlSerializer serializer = new FastXmlSerializer(); 1722 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 1723 serializer.startDocument(null, true); 1724 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 1725 1726 serializer.startTag(null, TAG_USERS); 1727 serializer.attribute(null, ATTR_NEXT_SERIAL_NO, Integer.toString(mNextSerialNumber)); 1728 serializer.attribute(null, ATTR_USER_VERSION, Integer.toString(mUserVersion)); 1729 1730 serializer.startTag(null, TAG_GUEST_RESTRICTIONS); 1731 synchronized (mGuestRestrictions) { 1732 UserRestrictionsUtils 1733 .writeRestrictions(serializer, mGuestRestrictions, TAG_RESTRICTIONS); 1734 } 1735 serializer.endTag(null, TAG_GUEST_RESTRICTIONS); 1736 synchronized (mRestrictionsLock) { 1737 UserRestrictionsUtils.writeRestrictions(serializer, 1738 mDevicePolicyGlobalUserRestrictions, TAG_DEVICE_POLICY_RESTRICTIONS); 1739 } 1740 int[] userIdsToWrite; 1741 synchronized (mUsersLock) { 1742 userIdsToWrite = new int[mUsers.size()]; 1743 for (int i = 0; i < userIdsToWrite.length; i++) { 1744 UserInfo user = mUsers.valueAt(i).info; 1745 userIdsToWrite[i] = user.id; 1746 } 1747 } 1748 for (int id : userIdsToWrite) { 1749 serializer.startTag(null, TAG_USER); 1750 serializer.attribute(null, ATTR_ID, Integer.toString(id)); 1751 serializer.endTag(null, TAG_USER); 1752 } 1753 1754 serializer.endTag(null, TAG_USERS); 1755 1756 serializer.endDocument(); 1757 userListFile.finishWrite(fos); 1758 } catch (Exception e) { 1759 userListFile.failWrite(fos); 1760 Slog.e(LOG_TAG, "Error writing user list"); 1761 } 1762 } 1763 1764 private UserData readUserLP(int id) { 1765 int flags = 0; 1766 int serialNumber = id; 1767 String name = null; 1768 String account = null; 1769 String iconPath = null; 1770 long creationTime = 0L; 1771 long lastLoggedInTime = 0L; 1772 String lastLoggedInFingerprint = null; 1773 int profileGroupId = UserInfo.NO_PROFILE_GROUP_ID; 1774 int restrictedProfileParentId = UserInfo.NO_PROFILE_GROUP_ID; 1775 boolean partial = false; 1776 boolean guestToRemove = false; 1777 boolean persistSeedData = false; 1778 String seedAccountName = null; 1779 String seedAccountType = null; 1780 PersistableBundle seedAccountOptions = null; 1781 Bundle baseRestrictions = new Bundle(); 1782 Bundle localRestrictions = new Bundle(); 1783 1784 FileInputStream fis = null; 1785 try { 1786 AtomicFile userFile = 1787 new AtomicFile(new File(mUsersDir, Integer.toString(id) + XML_SUFFIX)); 1788 fis = userFile.openRead(); 1789 XmlPullParser parser = Xml.newPullParser(); 1790 parser.setInput(fis, StandardCharsets.UTF_8.name()); 1791 int type; 1792 while ((type = parser.next()) != XmlPullParser.START_TAG 1793 && type != XmlPullParser.END_DOCUMENT) { 1794 // Skip 1795 } 1796 1797 if (type != XmlPullParser.START_TAG) { 1798 Slog.e(LOG_TAG, "Unable to read user " + id); 1799 return null; 1800 } 1801 1802 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_USER)) { 1803 int storedId = readIntAttribute(parser, ATTR_ID, -1); 1804 if (storedId != id) { 1805 Slog.e(LOG_TAG, "User id does not match the file name"); 1806 return null; 1807 } 1808 serialNumber = readIntAttribute(parser, ATTR_SERIAL_NO, id); 1809 flags = readIntAttribute(parser, ATTR_FLAGS, 0); 1810 iconPath = parser.getAttributeValue(null, ATTR_ICON_PATH); 1811 creationTime = readLongAttribute(parser, ATTR_CREATION_TIME, 0); 1812 lastLoggedInTime = readLongAttribute(parser, ATTR_LAST_LOGGED_IN_TIME, 0); 1813 lastLoggedInFingerprint = parser.getAttributeValue(null, 1814 ATTR_LAST_LOGGED_IN_FINGERPRINT); 1815 profileGroupId = readIntAttribute(parser, ATTR_PROFILE_GROUP_ID, 1816 UserInfo.NO_PROFILE_GROUP_ID); 1817 restrictedProfileParentId = readIntAttribute(parser, 1818 ATTR_RESTRICTED_PROFILE_PARENT_ID, UserInfo.NO_PROFILE_GROUP_ID); 1819 String valueString = parser.getAttributeValue(null, ATTR_PARTIAL); 1820 if ("true".equals(valueString)) { 1821 partial = true; 1822 } 1823 valueString = parser.getAttributeValue(null, ATTR_GUEST_TO_REMOVE); 1824 if ("true".equals(valueString)) { 1825 guestToRemove = true; 1826 } 1827 1828 seedAccountName = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_NAME); 1829 seedAccountType = parser.getAttributeValue(null, ATTR_SEED_ACCOUNT_TYPE); 1830 if (seedAccountName != null || seedAccountType != null) { 1831 persistSeedData = true; 1832 } 1833 1834 int outerDepth = parser.getDepth(); 1835 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 1836 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1837 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 1838 continue; 1839 } 1840 String tag = parser.getName(); 1841 if (TAG_NAME.equals(tag)) { 1842 type = parser.next(); 1843 if (type == XmlPullParser.TEXT) { 1844 name = parser.getText(); 1845 } 1846 } else if (TAG_RESTRICTIONS.equals(tag)) { 1847 UserRestrictionsUtils.readRestrictions(parser, baseRestrictions); 1848 } else if (TAG_DEVICE_POLICY_RESTRICTIONS.equals(tag)) { 1849 UserRestrictionsUtils.readRestrictions(parser, localRestrictions); 1850 } else if (TAG_ACCOUNT.equals(tag)) { 1851 type = parser.next(); 1852 if (type == XmlPullParser.TEXT) { 1853 account = parser.getText(); 1854 } 1855 } else if (TAG_SEED_ACCOUNT_OPTIONS.equals(tag)) { 1856 seedAccountOptions = PersistableBundle.restoreFromXml(parser); 1857 persistSeedData = true; 1858 } 1859 } 1860 } 1861 1862 // Create the UserInfo object that gets passed around 1863 UserInfo userInfo = new UserInfo(id, name, iconPath, flags); 1864 userInfo.serialNumber = serialNumber; 1865 userInfo.creationTime = creationTime; 1866 userInfo.lastLoggedInTime = lastLoggedInTime; 1867 userInfo.lastLoggedInFingerprint = lastLoggedInFingerprint; 1868 userInfo.partial = partial; 1869 userInfo.guestToRemove = guestToRemove; 1870 userInfo.profileGroupId = profileGroupId; 1871 userInfo.restrictedProfileParentId = restrictedProfileParentId; 1872 1873 // Create the UserData object that's internal to this class 1874 UserData userData = new UserData(); 1875 userData.info = userInfo; 1876 userData.account = account; 1877 userData.seedAccountName = seedAccountName; 1878 userData.seedAccountType = seedAccountType; 1879 userData.persistSeedData = persistSeedData; 1880 userData.seedAccountOptions = seedAccountOptions; 1881 1882 synchronized (mRestrictionsLock) { 1883 mBaseUserRestrictions.put(id, baseRestrictions); 1884 mDevicePolicyLocalUserRestrictions.put(id, localRestrictions); 1885 } 1886 return userData; 1887 } catch (IOException ioe) { 1888 } catch (XmlPullParserException pe) { 1889 } finally { 1890 if (fis != null) { 1891 try { 1892 fis.close(); 1893 } catch (IOException e) { 1894 } 1895 } 1896 } 1897 return null; 1898 } 1899 1900 private int readIntAttribute(XmlPullParser parser, String attr, int defaultValue) { 1901 String valueString = parser.getAttributeValue(null, attr); 1902 if (valueString == null) return defaultValue; 1903 try { 1904 return Integer.parseInt(valueString); 1905 } catch (NumberFormatException nfe) { 1906 return defaultValue; 1907 } 1908 } 1909 1910 private long readLongAttribute(XmlPullParser parser, String attr, long defaultValue) { 1911 String valueString = parser.getAttributeValue(null, attr); 1912 if (valueString == null) return defaultValue; 1913 try { 1914 return Long.parseLong(valueString); 1915 } catch (NumberFormatException nfe) { 1916 return defaultValue; 1917 } 1918 } 1919 1920 /** 1921 * Removes the app restrictions file for a specific package and user id, if it exists. 1922 */ 1923 private void cleanAppRestrictionsForPackage(String pkg, int userId) { 1924 synchronized (mPackagesLock) { 1925 File dir = Environment.getUserSystemDirectory(userId); 1926 File resFile = new File(dir, packageToRestrictionsFileName(pkg)); 1927 if (resFile.exists()) { 1928 resFile.delete(); 1929 } 1930 } 1931 } 1932 1933 @Override 1934 public UserInfo createProfileForUser(String name, int flags, int userId) { 1935 checkManageUsersPermission("Only the system can create users"); 1936 return createUserInternal(name, flags, userId); 1937 } 1938 1939 @Override 1940 public UserInfo createUser(String name, int flags) { 1941 checkManageUsersPermission("Only the system can create users"); 1942 return createUserInternal(name, flags, UserHandle.USER_NULL); 1943 } 1944 1945 private UserInfo createUserInternal(String name, int flags, int parentId) { 1946 if (hasUserRestriction(UserManager.DISALLOW_ADD_USER, UserHandle.getCallingUserId())) { 1947 Log.w(LOG_TAG, "Cannot add user. DISALLOW_ADD_USER is enabled."); 1948 return null; 1949 } 1950 return createUserInternalUnchecked(name, flags, parentId); 1951 } 1952 1953 private UserInfo createUserInternalUnchecked(String name, int flags, int parentId) { 1954 if (ActivityManager.isLowRamDeviceStatic()) { 1955 return null; 1956 } 1957 final boolean isGuest = (flags & UserInfo.FLAG_GUEST) != 0; 1958 final boolean isManagedProfile = (flags & UserInfo.FLAG_MANAGED_PROFILE) != 0; 1959 final boolean isRestricted = (flags & UserInfo.FLAG_RESTRICTED) != 0; 1960 final long ident = Binder.clearCallingIdentity(); 1961 UserInfo userInfo; 1962 UserData userData; 1963 final int userId; 1964 try { 1965 synchronized (mPackagesLock) { 1966 UserData parent = null; 1967 if (parentId != UserHandle.USER_NULL) { 1968 synchronized (mUsersLock) { 1969 parent = getUserDataLU(parentId); 1970 } 1971 if (parent == null) return null; 1972 } 1973 if (isManagedProfile && !canAddMoreManagedProfiles(parentId, false)) { 1974 Log.e(LOG_TAG, "Cannot add more managed profiles for user " + parentId); 1975 return null; 1976 } 1977 if (!isGuest && !isManagedProfile && isUserLimitReached()) { 1978 // If we're not adding a guest user or a managed profile and the limit has 1979 // been reached, cannot add a user. 1980 return null; 1981 } 1982 // If we're adding a guest and there already exists one, bail. 1983 if (isGuest && findCurrentGuestUser() != null) { 1984 return null; 1985 } 1986 // In legacy mode, restricted profile's parent can only be the owner user 1987 if (isRestricted && !UserManager.isSplitSystemUser() 1988 && (parentId != UserHandle.USER_SYSTEM)) { 1989 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be owner"); 1990 return null; 1991 } 1992 if (isRestricted && UserManager.isSplitSystemUser()) { 1993 if (parent == null) { 1994 Log.w(LOG_TAG, "Cannot add restricted profile - parent user must be " 1995 + "specified"); 1996 return null; 1997 } 1998 if (!parent.info.canHaveProfile()) { 1999 Log.w(LOG_TAG, "Cannot add restricted profile - profiles cannot be " 2000 + "created for the specified parent user id " + parentId); 2001 return null; 2002 } 2003 } 2004 if (!UserManager.isSplitSystemUser() && (flags & UserInfo.FLAG_EPHEMERAL) != 0) { 2005 Log.e(LOG_TAG, 2006 "Ephemeral users are supported on split-system-user systems only."); 2007 return null; 2008 } 2009 // In split system user mode, we assign the first human user the primary flag. 2010 // And if there is no device owner, we also assign the admin flag to primary user. 2011 if (UserManager.isSplitSystemUser() 2012 && !isGuest && !isManagedProfile && getPrimaryUser() == null) { 2013 flags |= UserInfo.FLAG_PRIMARY; 2014 synchronized (mUsersLock) { 2015 if (!mIsDeviceManaged) { 2016 flags |= UserInfo.FLAG_ADMIN; 2017 } 2018 } 2019 } 2020 2021 userId = getNextAvailableId(); 2022 Environment.getUserSystemDirectory(userId).mkdirs(); 2023 boolean ephemeralGuests = Resources.getSystem() 2024 .getBoolean(com.android.internal.R.bool.config_guestUserEphemeral); 2025 2026 synchronized (mUsersLock) { 2027 // Add ephemeral flag to guests/users if required. Also inherit it from parent. 2028 if ((isGuest && ephemeralGuests) || mForceEphemeralUsers 2029 || (parent != null && parent.info.isEphemeral())) { 2030 flags |= UserInfo.FLAG_EPHEMERAL; 2031 } 2032 2033 userInfo = new UserInfo(userId, name, null, flags); 2034 userInfo.serialNumber = mNextSerialNumber++; 2035 long now = System.currentTimeMillis(); 2036 userInfo.creationTime = (now > EPOCH_PLUS_30_YEARS) ? now : 0; 2037 userInfo.partial = true; 2038 userInfo.lastLoggedInFingerprint = Build.FINGERPRINT; 2039 userData = new UserData(); 2040 userData.info = userInfo; 2041 mUsers.put(userId, userData); 2042 } 2043 writeUserLP(userData); 2044 writeUserListLP(); 2045 if (parent != null) { 2046 if (isManagedProfile) { 2047 if (parent.info.profileGroupId == UserInfo.NO_PROFILE_GROUP_ID) { 2048 parent.info.profileGroupId = parent.info.id; 2049 writeUserLP(parent); 2050 } 2051 userInfo.profileGroupId = parent.info.profileGroupId; 2052 } else if (isRestricted) { 2053 if (parent.info.restrictedProfileParentId == UserInfo.NO_PROFILE_GROUP_ID) { 2054 parent.info.restrictedProfileParentId = parent.info.id; 2055 writeUserLP(parent); 2056 } 2057 userInfo.restrictedProfileParentId = parent.info.restrictedProfileParentId; 2058 } 2059 } 2060 } 2061 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2062 storage.createUserKey(userId, userInfo.serialNumber, userInfo.isEphemeral()); 2063 prepareUserStorage(userId, userInfo.serialNumber, 2064 StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE); 2065 mPm.createNewUser(userId); 2066 userInfo.partial = false; 2067 synchronized (mPackagesLock) { 2068 writeUserLP(userData); 2069 } 2070 updateUserIds(); 2071 Bundle restrictions = new Bundle(); 2072 if (isGuest) { 2073 synchronized (mGuestRestrictions) { 2074 restrictions.putAll(mGuestRestrictions); 2075 } 2076 } 2077 synchronized (mRestrictionsLock) { 2078 mBaseUserRestrictions.append(userId, restrictions); 2079 } 2080 mPm.newUserCreated(userId); 2081 Intent addedIntent = new Intent(Intent.ACTION_USER_ADDED); 2082 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId); 2083 mContext.sendBroadcastAsUser(addedIntent, UserHandle.ALL, 2084 android.Manifest.permission.MANAGE_USERS); 2085 MetricsLogger.count(mContext, isGuest ? TRON_GUEST_CREATED : TRON_USER_CREATED, 1); 2086 } finally { 2087 Binder.restoreCallingIdentity(ident); 2088 } 2089 return userInfo; 2090 } 2091 2092 /** 2093 * @hide 2094 */ 2095 @Override 2096 public UserInfo createRestrictedProfile(String name, int parentUserId) { 2097 checkManageUsersPermission("setupRestrictedProfile"); 2098 final UserInfo user = createProfileForUser(name, UserInfo.FLAG_RESTRICTED, parentUserId); 2099 if (user == null) { 2100 return null; 2101 } 2102 long identity = Binder.clearCallingIdentity(); 2103 try { 2104 setUserRestriction(UserManager.DISALLOW_MODIFY_ACCOUNTS, true, user.id); 2105 // Change the setting before applying the DISALLOW_SHARE_LOCATION restriction, otherwise 2106 // the putIntForUser() will fail. 2107 android.provider.Settings.Secure.putIntForUser(mContext.getContentResolver(), 2108 android.provider.Settings.Secure.LOCATION_MODE, 2109 android.provider.Settings.Secure.LOCATION_MODE_OFF, user.id); 2110 setUserRestriction(UserManager.DISALLOW_SHARE_LOCATION, true, user.id); 2111 } finally { 2112 Binder.restoreCallingIdentity(identity); 2113 } 2114 return user; 2115 } 2116 2117 /** 2118 * Find the current guest user. If the Guest user is partial, 2119 * then do not include it in the results as it is about to die. 2120 */ 2121 private UserInfo findCurrentGuestUser() { 2122 synchronized (mUsersLock) { 2123 final int size = mUsers.size(); 2124 for (int i = 0; i < size; i++) { 2125 final UserInfo user = mUsers.valueAt(i).info; 2126 if (user.isGuest() && !user.guestToRemove && !mRemovingUserIds.get(user.id)) { 2127 return user; 2128 } 2129 } 2130 } 2131 return null; 2132 } 2133 2134 /** 2135 * Mark this guest user for deletion to allow us to create another guest 2136 * and switch to that user before actually removing this guest. 2137 * @param userHandle the userid of the current guest 2138 * @return whether the user could be marked for deletion 2139 */ 2140 @Override 2141 public boolean markGuestForDeletion(int userHandle) { 2142 checkManageUsersPermission("Only the system can remove users"); 2143 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2144 UserManager.DISALLOW_REMOVE_USER, false)) { 2145 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2146 return false; 2147 } 2148 2149 long ident = Binder.clearCallingIdentity(); 2150 try { 2151 final UserData userData; 2152 synchronized (mPackagesLock) { 2153 synchronized (mUsersLock) { 2154 userData = mUsers.get(userHandle); 2155 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2156 return false; 2157 } 2158 } 2159 if (!userData.info.isGuest()) { 2160 return false; 2161 } 2162 // We set this to a guest user that is to be removed. This is a temporary state 2163 // where we are allowed to add new Guest users, even if this one is still not 2164 // removed. This user will still show up in getUserInfo() calls. 2165 // If we don't get around to removing this Guest user, it will be purged on next 2166 // startup. 2167 userData.info.guestToRemove = true; 2168 // Mark it as disabled, so that it isn't returned any more when 2169 // profiles are queried. 2170 userData.info.flags |= UserInfo.FLAG_DISABLED; 2171 writeUserLP(userData); 2172 } 2173 } finally { 2174 Binder.restoreCallingIdentity(ident); 2175 } 2176 return true; 2177 } 2178 2179 /** 2180 * Removes a user and all data directories created for that user. This method should be called 2181 * after the user's processes have been terminated. 2182 * @param userHandle the user's id 2183 */ 2184 @Override 2185 public boolean removeUser(int userHandle) { 2186 checkManageUsersPermission("Only the system can remove users"); 2187 if (getUserRestrictions(UserHandle.getCallingUserId()).getBoolean( 2188 UserManager.DISALLOW_REMOVE_USER, false)) { 2189 Log.w(LOG_TAG, "Cannot remove user. DISALLOW_REMOVE_USER is enabled."); 2190 return false; 2191 } 2192 2193 long ident = Binder.clearCallingIdentity(); 2194 try { 2195 final UserData userData; 2196 int currentUser = ActivityManager.getCurrentUser(); 2197 if (currentUser == userHandle) { 2198 Log.w(LOG_TAG, "Current user cannot be removed"); 2199 return false; 2200 } 2201 synchronized (mPackagesLock) { 2202 synchronized (mUsersLock) { 2203 userData = mUsers.get(userHandle); 2204 if (userHandle == 0 || userData == null || mRemovingUserIds.get(userHandle)) { 2205 return false; 2206 } 2207 2208 // We remember deleted user IDs to prevent them from being 2209 // reused during the current boot; they can still be reused 2210 // after a reboot. 2211 mRemovingUserIds.put(userHandle, true); 2212 } 2213 2214 try { 2215 mAppOpsService.removeUser(userHandle); 2216 } catch (RemoteException e) { 2217 Log.w(LOG_TAG, "Unable to notify AppOpsService of removing user", e); 2218 } 2219 // Set this to a partially created user, so that the user will be purged 2220 // on next startup, in case the runtime stops now before stopping and 2221 // removing the user completely. 2222 userData.info.partial = true; 2223 // Mark it as disabled, so that it isn't returned any more when 2224 // profiles are queried. 2225 userData.info.flags |= UserInfo.FLAG_DISABLED; 2226 writeUserLP(userData); 2227 } 2228 2229 if (userData.info.profileGroupId != UserInfo.NO_PROFILE_GROUP_ID 2230 && userData.info.isManagedProfile()) { 2231 // Send broadcast to notify system that the user removed was a 2232 // managed user. 2233 sendProfileRemovedBroadcast(userData.info.profileGroupId, userData.info.id); 2234 } 2235 2236 if (DBG) Slog.i(LOG_TAG, "Stopping user " + userHandle); 2237 int res; 2238 try { 2239 res = ActivityManagerNative.getDefault().stopUser(userHandle, /* force= */ true, 2240 new IStopUserCallback.Stub() { 2241 @Override 2242 public void userStopped(int userId) { 2243 finishRemoveUser(userId); 2244 } 2245 @Override 2246 public void userStopAborted(int userId) { 2247 } 2248 }); 2249 } catch (RemoteException e) { 2250 return false; 2251 } 2252 return res == ActivityManager.USER_OP_SUCCESS; 2253 } finally { 2254 Binder.restoreCallingIdentity(ident); 2255 } 2256 } 2257 2258 void finishRemoveUser(final int userHandle) { 2259 if (DBG) Slog.i(LOG_TAG, "finishRemoveUser " + userHandle); 2260 // Let other services shutdown any activity and clean up their state before completely 2261 // wiping the user's system directory and removing from the user list 2262 long ident = Binder.clearCallingIdentity(); 2263 try { 2264 Intent addedIntent = new Intent(Intent.ACTION_USER_REMOVED); 2265 addedIntent.putExtra(Intent.EXTRA_USER_HANDLE, userHandle); 2266 mContext.sendOrderedBroadcastAsUser(addedIntent, UserHandle.ALL, 2267 android.Manifest.permission.MANAGE_USERS, 2268 2269 new BroadcastReceiver() { 2270 @Override 2271 public void onReceive(Context context, Intent intent) { 2272 if (DBG) { 2273 Slog.i(LOG_TAG, 2274 "USER_REMOVED broadcast sent, cleaning up user data " 2275 + userHandle); 2276 } 2277 new Thread() { 2278 @Override 2279 public void run() { 2280 // Clean up any ActivityManager state 2281 LocalServices.getService(ActivityManagerInternal.class) 2282 .onUserRemoved(userHandle); 2283 removeUserState(userHandle); 2284 } 2285 }.start(); 2286 } 2287 }, 2288 2289 null, Activity.RESULT_OK, null, null); 2290 } finally { 2291 Binder.restoreCallingIdentity(ident); 2292 } 2293 } 2294 2295 private void removeUserState(final int userHandle) { 2296 try { 2297 mContext.getSystemService(StorageManager.class).destroyUserKey(userHandle); 2298 } catch (IllegalStateException e) { 2299 // This may be simply because the user was partially created. 2300 Slog.i(LOG_TAG, 2301 "Destroying key for user " + userHandle + " failed, continuing anyway", e); 2302 } 2303 // Cleanup package manager settings 2304 mPm.cleanUpUser(this, userHandle); 2305 2306 // Remove this user from the list 2307 synchronized (mUsersLock) { 2308 mUsers.remove(userHandle); 2309 mIsUserManaged.delete(userHandle); 2310 } 2311 synchronized (mRestrictionsLock) { 2312 mBaseUserRestrictions.remove(userHandle); 2313 mAppliedUserRestrictions.remove(userHandle); 2314 mCachedEffectiveUserRestrictions.remove(userHandle); 2315 mDevicePolicyLocalUserRestrictions.remove(userHandle); 2316 } 2317 // Update the user list 2318 synchronized (mPackagesLock) { 2319 writeUserListLP(); 2320 } 2321 // Remove user file 2322 AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX)); 2323 userFile.delete(); 2324 updateUserIds(); 2325 File userDir = Environment.getUserSystemDirectory(userHandle); 2326 File renamedUserDir = Environment.getUserSystemDirectory(UserHandle.USER_NULL - userHandle); 2327 if (userDir.renameTo(renamedUserDir)) { 2328 removeDirectoryRecursive(renamedUserDir); 2329 } else { 2330 removeDirectoryRecursive(userDir); 2331 } 2332 } 2333 2334 private void removeDirectoryRecursive(File parent) { 2335 if (parent.isDirectory()) { 2336 String[] files = parent.list(); 2337 for (String filename : files) { 2338 File child = new File(parent, filename); 2339 removeDirectoryRecursive(child); 2340 } 2341 } 2342 parent.delete(); 2343 } 2344 2345 private void sendProfileRemovedBroadcast(int parentUserId, int removedUserId) { 2346 Intent managedProfileIntent = new Intent(Intent.ACTION_MANAGED_PROFILE_REMOVED); 2347 managedProfileIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 2348 Intent.FLAG_RECEIVER_FOREGROUND); 2349 managedProfileIntent.putExtra(Intent.EXTRA_USER, new UserHandle(removedUserId)); 2350 managedProfileIntent.putExtra(Intent.EXTRA_USER_HANDLE, removedUserId); 2351 mContext.sendBroadcastAsUser(managedProfileIntent, new UserHandle(parentUserId), null); 2352 } 2353 2354 @Override 2355 public Bundle getApplicationRestrictions(String packageName) { 2356 return getApplicationRestrictionsForUser(packageName, UserHandle.getCallingUserId()); 2357 } 2358 2359 @Override 2360 public Bundle getApplicationRestrictionsForUser(String packageName, int userId) { 2361 if (UserHandle.getCallingUserId() != userId 2362 || !UserHandle.isSameApp(Binder.getCallingUid(), getUidForPackage(packageName))) { 2363 checkSystemOrRoot("get application restrictions for other users/apps"); 2364 } 2365 synchronized (mPackagesLock) { 2366 // Read the restrictions from XML 2367 return readApplicationRestrictionsLP(packageName, userId); 2368 } 2369 } 2370 2371 @Override 2372 public void setApplicationRestrictions(String packageName, Bundle restrictions, 2373 int userId) { 2374 checkSystemOrRoot("set application restrictions"); 2375 if (restrictions != null) { 2376 restrictions.setDefusable(true); 2377 } 2378 synchronized (mPackagesLock) { 2379 if (restrictions == null || restrictions.isEmpty()) { 2380 cleanAppRestrictionsForPackage(packageName, userId); 2381 } else { 2382 // Write the restrictions to XML 2383 writeApplicationRestrictionsLP(packageName, restrictions, userId); 2384 } 2385 } 2386 2387 // Notify package of changes via an intent - only sent to explicitly registered receivers. 2388 Intent changeIntent = new Intent(Intent.ACTION_APPLICATION_RESTRICTIONS_CHANGED); 2389 changeIntent.setPackage(packageName); 2390 changeIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2391 mContext.sendBroadcastAsUser(changeIntent, UserHandle.of(userId)); 2392 } 2393 2394 private int getUidForPackage(String packageName) { 2395 long ident = Binder.clearCallingIdentity(); 2396 try { 2397 return mContext.getPackageManager().getApplicationInfo(packageName, 2398 PackageManager.MATCH_UNINSTALLED_PACKAGES).uid; 2399 } catch (NameNotFoundException nnfe) { 2400 return -1; 2401 } finally { 2402 Binder.restoreCallingIdentity(ident); 2403 } 2404 } 2405 2406 private Bundle readApplicationRestrictionsLP(String packageName, int userId) { 2407 AtomicFile restrictionsFile = 2408 new AtomicFile(new File(Environment.getUserSystemDirectory(userId), 2409 packageToRestrictionsFileName(packageName))); 2410 return readApplicationRestrictionsLP(restrictionsFile); 2411 } 2412 2413 @VisibleForTesting 2414 static Bundle readApplicationRestrictionsLP(AtomicFile restrictionsFile) { 2415 final Bundle restrictions = new Bundle(); 2416 final ArrayList<String> values = new ArrayList<>(); 2417 if (!restrictionsFile.getBaseFile().exists()) { 2418 return restrictions; 2419 } 2420 2421 FileInputStream fis = null; 2422 try { 2423 fis = restrictionsFile.openRead(); 2424 XmlPullParser parser = Xml.newPullParser(); 2425 parser.setInput(fis, StandardCharsets.UTF_8.name()); 2426 XmlUtils.nextElement(parser); 2427 if (parser.getEventType() != XmlPullParser.START_TAG) { 2428 Slog.e(LOG_TAG, "Unable to read restrictions file " 2429 + restrictionsFile.getBaseFile()); 2430 return restrictions; 2431 } 2432 while (parser.next() != XmlPullParser.END_DOCUMENT) { 2433 readEntry(restrictions, values, parser); 2434 } 2435 } catch (IOException|XmlPullParserException e) { 2436 Log.w(LOG_TAG, "Error parsing " + restrictionsFile.getBaseFile(), e); 2437 } finally { 2438 IoUtils.closeQuietly(fis); 2439 } 2440 return restrictions; 2441 } 2442 2443 private static void readEntry(Bundle restrictions, ArrayList<String> values, 2444 XmlPullParser parser) throws XmlPullParserException, IOException { 2445 int type = parser.getEventType(); 2446 if (type == XmlPullParser.START_TAG && parser.getName().equals(TAG_ENTRY)) { 2447 String key = parser.getAttributeValue(null, ATTR_KEY); 2448 String valType = parser.getAttributeValue(null, ATTR_VALUE_TYPE); 2449 String multiple = parser.getAttributeValue(null, ATTR_MULTIPLE); 2450 if (multiple != null) { 2451 values.clear(); 2452 int count = Integer.parseInt(multiple); 2453 while (count > 0 && (type = parser.next()) != XmlPullParser.END_DOCUMENT) { 2454 if (type == XmlPullParser.START_TAG 2455 && parser.getName().equals(TAG_VALUE)) { 2456 values.add(parser.nextText().trim()); 2457 count--; 2458 } 2459 } 2460 String [] valueStrings = new String[values.size()]; 2461 values.toArray(valueStrings); 2462 restrictions.putStringArray(key, valueStrings); 2463 } else if (ATTR_TYPE_BUNDLE.equals(valType)) { 2464 restrictions.putBundle(key, readBundleEntry(parser, values)); 2465 } else if (ATTR_TYPE_BUNDLE_ARRAY.equals(valType)) { 2466 final int outerDepth = parser.getDepth(); 2467 ArrayList<Bundle> bundleList = new ArrayList<>(); 2468 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2469 Bundle childBundle = readBundleEntry(parser, values); 2470 bundleList.add(childBundle); 2471 } 2472 restrictions.putParcelableArray(key, 2473 bundleList.toArray(new Bundle[bundleList.size()])); 2474 } else { 2475 String value = parser.nextText().trim(); 2476 if (ATTR_TYPE_BOOLEAN.equals(valType)) { 2477 restrictions.putBoolean(key, Boolean.parseBoolean(value)); 2478 } else if (ATTR_TYPE_INTEGER.equals(valType)) { 2479 restrictions.putInt(key, Integer.parseInt(value)); 2480 } else { 2481 restrictions.putString(key, value); 2482 } 2483 } 2484 } 2485 } 2486 2487 private static Bundle readBundleEntry(XmlPullParser parser, ArrayList<String> values) 2488 throws IOException, XmlPullParserException { 2489 Bundle childBundle = new Bundle(); 2490 final int outerDepth = parser.getDepth(); 2491 while (XmlUtils.nextElementWithin(parser, outerDepth)) { 2492 readEntry(childBundle, values, parser); 2493 } 2494 return childBundle; 2495 } 2496 2497 private void writeApplicationRestrictionsLP(String packageName, 2498 Bundle restrictions, int userId) { 2499 AtomicFile restrictionsFile = new AtomicFile( 2500 new File(Environment.getUserSystemDirectory(userId), 2501 packageToRestrictionsFileName(packageName))); 2502 writeApplicationRestrictionsLP(restrictions, restrictionsFile); 2503 } 2504 2505 @VisibleForTesting 2506 static void writeApplicationRestrictionsLP(Bundle restrictions, AtomicFile restrictionsFile) { 2507 FileOutputStream fos = null; 2508 try { 2509 fos = restrictionsFile.startWrite(); 2510 final BufferedOutputStream bos = new BufferedOutputStream(fos); 2511 2512 final XmlSerializer serializer = new FastXmlSerializer(); 2513 serializer.setOutput(bos, StandardCharsets.UTF_8.name()); 2514 serializer.startDocument(null, true); 2515 serializer.setFeature("http://xmlpull.org/v1/doc/features.html#indent-output", true); 2516 2517 serializer.startTag(null, TAG_RESTRICTIONS); 2518 writeBundle(restrictions, serializer); 2519 serializer.endTag(null, TAG_RESTRICTIONS); 2520 2521 serializer.endDocument(); 2522 restrictionsFile.finishWrite(fos); 2523 } catch (Exception e) { 2524 restrictionsFile.failWrite(fos); 2525 Slog.e(LOG_TAG, "Error writing application restrictions list", e); 2526 } 2527 } 2528 2529 private static void writeBundle(Bundle restrictions, XmlSerializer serializer) 2530 throws IOException { 2531 for (String key : restrictions.keySet()) { 2532 Object value = restrictions.get(key); 2533 serializer.startTag(null, TAG_ENTRY); 2534 serializer.attribute(null, ATTR_KEY, key); 2535 2536 if (value instanceof Boolean) { 2537 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BOOLEAN); 2538 serializer.text(value.toString()); 2539 } else if (value instanceof Integer) { 2540 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_INTEGER); 2541 serializer.text(value.toString()); 2542 } else if (value == null || value instanceof String) { 2543 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING); 2544 serializer.text(value != null ? (String) value : ""); 2545 } else if (value instanceof Bundle) { 2546 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2547 writeBundle((Bundle) value, serializer); 2548 } else if (value instanceof Parcelable[]) { 2549 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE_ARRAY); 2550 Parcelable[] array = (Parcelable[]) value; 2551 for (Parcelable parcelable : array) { 2552 if (!(parcelable instanceof Bundle)) { 2553 throw new IllegalArgumentException("bundle-array can only hold Bundles"); 2554 } 2555 serializer.startTag(null, TAG_ENTRY); 2556 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_BUNDLE); 2557 writeBundle((Bundle) parcelable, serializer); 2558 serializer.endTag(null, TAG_ENTRY); 2559 } 2560 } else { 2561 serializer.attribute(null, ATTR_VALUE_TYPE, ATTR_TYPE_STRING_ARRAY); 2562 String[] values = (String[]) value; 2563 serializer.attribute(null, ATTR_MULTIPLE, Integer.toString(values.length)); 2564 for (String choice : values) { 2565 serializer.startTag(null, TAG_VALUE); 2566 serializer.text(choice != null ? choice : ""); 2567 serializer.endTag(null, TAG_VALUE); 2568 } 2569 } 2570 serializer.endTag(null, TAG_ENTRY); 2571 } 2572 } 2573 2574 @Override 2575 public int getUserSerialNumber(int userHandle) { 2576 synchronized (mUsersLock) { 2577 if (!exists(userHandle)) return -1; 2578 return getUserInfoLU(userHandle).serialNumber; 2579 } 2580 } 2581 2582 @Override 2583 public int getUserHandle(int userSerialNumber) { 2584 synchronized (mUsersLock) { 2585 for (int userId : mUserIds) { 2586 UserInfo info = getUserInfoLU(userId); 2587 if (info != null && info.serialNumber == userSerialNumber) return userId; 2588 } 2589 // Not found 2590 return -1; 2591 } 2592 } 2593 2594 @Override 2595 public long getUserCreationTime(int userHandle) { 2596 int callingUserId = UserHandle.getCallingUserId(); 2597 UserInfo userInfo = null; 2598 synchronized (mUsersLock) { 2599 if (callingUserId == userHandle) { 2600 userInfo = getUserInfoLU(userHandle); 2601 } else { 2602 UserInfo parent = getProfileParentLU(userHandle); 2603 if (parent != null && parent.id == callingUserId) { 2604 userInfo = getUserInfoLU(userHandle); 2605 } 2606 } 2607 } 2608 if (userInfo == null) { 2609 throw new SecurityException("userHandle can only be the calling user or a managed " 2610 + "profile associated with this user"); 2611 } 2612 return userInfo.creationTime; 2613 } 2614 2615 /** 2616 * Caches the list of user ids in an array, adjusting the array size when necessary. 2617 */ 2618 private void updateUserIds() { 2619 int num = 0; 2620 synchronized (mUsersLock) { 2621 final int userSize = mUsers.size(); 2622 for (int i = 0; i < userSize; i++) { 2623 if (!mUsers.valueAt(i).info.partial) { 2624 num++; 2625 } 2626 } 2627 final int[] newUsers = new int[num]; 2628 int n = 0; 2629 for (int i = 0; i < userSize; i++) { 2630 if (!mUsers.valueAt(i).info.partial) { 2631 newUsers[n++] = mUsers.keyAt(i); 2632 } 2633 } 2634 mUserIds = newUsers; 2635 } 2636 } 2637 2638 /** 2639 * Prepare storage areas for given user on all mounted devices. 2640 */ 2641 private void prepareUserStorage(int userId, int userSerial, int flags) { 2642 final StorageManager storage = mContext.getSystemService(StorageManager.class); 2643 for (VolumeInfo vol : storage.getWritablePrivateVolumes()) { 2644 final String volumeUuid = vol.getFsUuid(); 2645 storage.prepareUserStorage(volumeUuid, userId, userSerial, flags); 2646 } 2647 } 2648 2649 /** 2650 * Called right before a user is started. This gives us a chance to prepare 2651 * app storage and apply any user restrictions. 2652 */ 2653 public void onBeforeStartUser(int userId) { 2654 final int userSerial = getUserSerialNumber(userId); 2655 prepareUserStorage(userId, userSerial, StorageManager.FLAG_STORAGE_DE); 2656 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_DE); 2657 2658 if (userId != UserHandle.USER_SYSTEM) { 2659 synchronized (mRestrictionsLock) { 2660 applyUserRestrictionsLR(userId); 2661 } 2662 } 2663 } 2664 2665 /** 2666 * Called right before a user is unlocked. This gives us a chance to prepare 2667 * app storage. 2668 */ 2669 public void onBeforeUnlockUser(@UserIdInt int userId) { 2670 final int userSerial = getUserSerialNumber(userId); 2671 prepareUserStorage(userId, userSerial, StorageManager.FLAG_STORAGE_CE); 2672 mPm.reconcileAppsData(userId, StorageManager.FLAG_STORAGE_CE); 2673 } 2674 2675 /** 2676 * Make a note of the last started time of a user and do some cleanup. 2677 * @param userId the user that was just foregrounded 2678 */ 2679 public void onUserLoggedIn(@UserIdInt int userId) { 2680 UserData userData = getUserDataNoChecks(userId); 2681 if (userData == null || userData.info.partial) { 2682 Slog.w(LOG_TAG, "userForeground: unknown user #" + userId); 2683 return; 2684 } 2685 2686 final long now = System.currentTimeMillis(); 2687 if (now > EPOCH_PLUS_30_YEARS) { 2688 userData.info.lastLoggedInTime = now; 2689 } 2690 userData.info.lastLoggedInFingerprint = Build.FINGERPRINT; 2691 scheduleWriteUser(userData); 2692 } 2693 2694 /** 2695 * Returns the next available user id, filling in any holes in the ids. 2696 * TODO: May not be a good idea to recycle ids, in case it results in confusion 2697 * for data and battery stats collection, or unexpected cross-talk. 2698 */ 2699 private int getNextAvailableId() { 2700 synchronized (mUsersLock) { 2701 int i = MIN_USER_ID; 2702 while (i < MAX_USER_ID) { 2703 if (mUsers.indexOfKey(i) < 0 && !mRemovingUserIds.get(i)) { 2704 return i; 2705 } 2706 i++; 2707 } 2708 } 2709 throw new IllegalStateException("No user id available!"); 2710 } 2711 2712 private String packageToRestrictionsFileName(String packageName) { 2713 return RESTRICTIONS_FILE_PREFIX + packageName + XML_SUFFIX; 2714 } 2715 2716 /** 2717 * Enforce that serial number stored in user directory inode matches the 2718 * given expected value. Gracefully sets the serial number if currently 2719 * undefined. 2720 * 2721 * @throws IOException when problem extracting serial number, or serial 2722 * number is mismatched. 2723 */ 2724 public static void enforceSerialNumber(File file, int serialNumber) throws IOException { 2725 final int foundSerial = getSerialNumber(file); 2726 Slog.v(LOG_TAG, "Found " + file + " with serial number " + foundSerial); 2727 2728 if (foundSerial == -1) { 2729 Slog.d(LOG_TAG, "Serial number missing on " + file + "; assuming current is valid"); 2730 try { 2731 setSerialNumber(file, serialNumber); 2732 } catch (IOException e) { 2733 Slog.w(LOG_TAG, "Failed to set serial number on " + file, e); 2734 } 2735 2736 } else if (foundSerial != serialNumber) { 2737 throw new IOException("Found serial number " + foundSerial 2738 + " doesn't match expected " + serialNumber); 2739 } 2740 } 2741 2742 /** 2743 * Set serial number stored in user directory inode. 2744 * 2745 * @throws IOException if serial number was already set 2746 */ 2747 private static void setSerialNumber(File file, int serialNumber) 2748 throws IOException { 2749 try { 2750 final byte[] buf = Integer.toString(serialNumber).getBytes(StandardCharsets.UTF_8); 2751 Os.setxattr(file.getAbsolutePath(), XATTR_SERIAL, buf, OsConstants.XATTR_CREATE); 2752 } catch (ErrnoException e) { 2753 throw e.rethrowAsIOException(); 2754 } 2755 } 2756 2757 /** 2758 * Return serial number stored in user directory inode. 2759 * 2760 * @return parsed serial number, or -1 if not set 2761 */ 2762 private static int getSerialNumber(File file) throws IOException { 2763 try { 2764 final byte[] buf = new byte[256]; 2765 final int len = Os.getxattr(file.getAbsolutePath(), XATTR_SERIAL, buf); 2766 final String serial = new String(buf, 0, len); 2767 try { 2768 return Integer.parseInt(serial); 2769 } catch (NumberFormatException e) { 2770 throw new IOException("Bad serial number: " + serial); 2771 } 2772 } catch (ErrnoException e) { 2773 if (e.errno == OsConstants.ENODATA) { 2774 return -1; 2775 } else { 2776 throw e.rethrowAsIOException(); 2777 } 2778 } 2779 } 2780 2781 @Override 2782 public void setSeedAccountData(int userId, String accountName, String accountType, 2783 PersistableBundle accountOptions, boolean persist) { 2784 checkManageUsersPermission("Require MANAGE_USERS permission to set user seed data"); 2785 synchronized (mPackagesLock) { 2786 final UserData userData; 2787 synchronized (mUsersLock) { 2788 userData = getUserDataLU(userId); 2789 if (userData == null) { 2790 Slog.e(LOG_TAG, "No such user for settings seed data u=" + userId); 2791 return; 2792 } 2793 userData.seedAccountName = accountName; 2794 userData.seedAccountType = accountType; 2795 userData.seedAccountOptions = accountOptions; 2796 userData.persistSeedData = persist; 2797 } 2798 if (persist) { 2799 writeUserLP(userData); 2800 } 2801 } 2802 } 2803 2804 @Override 2805 public String getSeedAccountName() throws RemoteException { 2806 checkManageUsersPermission("Cannot get seed account information"); 2807 synchronized (mUsersLock) { 2808 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2809 return userData.seedAccountName; 2810 } 2811 } 2812 2813 @Override 2814 public String getSeedAccountType() throws RemoteException { 2815 checkManageUsersPermission("Cannot get seed account information"); 2816 synchronized (mUsersLock) { 2817 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2818 return userData.seedAccountType; 2819 } 2820 } 2821 2822 @Override 2823 public PersistableBundle getSeedAccountOptions() throws RemoteException { 2824 checkManageUsersPermission("Cannot get seed account information"); 2825 synchronized (mUsersLock) { 2826 UserData userData = getUserDataLU(UserHandle.getCallingUserId()); 2827 return userData.seedAccountOptions; 2828 } 2829 } 2830 2831 @Override 2832 public void clearSeedAccountData() throws RemoteException { 2833 checkManageUsersPermission("Cannot clear seed account information"); 2834 synchronized (mPackagesLock) { 2835 UserData userData; 2836 synchronized (mUsersLock) { 2837 userData = getUserDataLU(UserHandle.getCallingUserId()); 2838 if (userData == null) return; 2839 userData.clearSeedAccountData(); 2840 } 2841 writeUserLP(userData); 2842 } 2843 } 2844 2845 @Override 2846 public boolean someUserHasSeedAccount(String accountName, String accountType) 2847 throws RemoteException { 2848 checkManageUsersPermission("Cannot check seed account information"); 2849 synchronized (mUsersLock) { 2850 final int userSize = mUsers.size(); 2851 for (int i = 0; i < userSize; i++) { 2852 final UserData data = mUsers.valueAt(i); 2853 if (data.info.isInitialized()) continue; 2854 if (data.seedAccountName == null || !data.seedAccountName.equals(accountName)) { 2855 continue; 2856 } 2857 if (data.seedAccountType == null || !data.seedAccountType.equals(accountType)) { 2858 continue; 2859 } 2860 return true; 2861 } 2862 } 2863 return false; 2864 } 2865 2866 @Override 2867 public void onShellCommand(FileDescriptor in, FileDescriptor out, 2868 FileDescriptor err, String[] args, ResultReceiver resultReceiver) { 2869 (new Shell()).exec(this, in, out, err, args, resultReceiver); 2870 } 2871 2872 int onShellCommand(Shell shell, String cmd) { 2873 if (cmd == null) { 2874 return shell.handleDefaultCommands(cmd); 2875 } 2876 2877 final PrintWriter pw = shell.getOutPrintWriter(); 2878 try { 2879 switch(cmd) { 2880 case "list": 2881 return runList(pw); 2882 } 2883 } catch (RemoteException e) { 2884 pw.println("Remote exception: " + e); 2885 } 2886 return -1; 2887 } 2888 2889 private int runList(PrintWriter pw) throws RemoteException { 2890 final IActivityManager am = ActivityManagerNative.getDefault(); 2891 final List<UserInfo> users = getUsers(false); 2892 if (users == null) { 2893 pw.println("Error: couldn't get users"); 2894 return 1; 2895 } else { 2896 pw.println("Users:"); 2897 for (int i = 0; i < users.size(); i++) { 2898 String running = am.isUserRunning(users.get(i).id, 0) ? " running" : ""; 2899 pw.println("\t" + users.get(i).toString() + running); 2900 } 2901 return 0; 2902 } 2903 } 2904 2905 @Override 2906 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 2907 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 2908 != PackageManager.PERMISSION_GRANTED) { 2909 pw.println("Permission Denial: can't dump UserManager from from pid=" 2910 + Binder.getCallingPid() 2911 + ", uid=" + Binder.getCallingUid() 2912 + " without permission " 2913 + android.Manifest.permission.DUMP); 2914 return; 2915 } 2916 2917 long now = System.currentTimeMillis(); 2918 StringBuilder sb = new StringBuilder(); 2919 synchronized (mPackagesLock) { 2920 synchronized (mUsersLock) { 2921 pw.println("Users:"); 2922 for (int i = 0; i < mUsers.size(); i++) { 2923 UserData userData = mUsers.valueAt(i); 2924 if (userData == null) { 2925 continue; 2926 } 2927 UserInfo userInfo = userData.info; 2928 final int userId = userInfo.id; 2929 pw.print(" "); pw.print(userInfo); 2930 pw.print(" serialNo="); pw.print(userInfo.serialNumber); 2931 if (mRemovingUserIds.get(userId)) { 2932 pw.print(" <removing> "); 2933 } 2934 if (userInfo.partial) { 2935 pw.print(" <partial>"); 2936 } 2937 pw.println(); 2938 pw.print(" Created: "); 2939 if (userInfo.creationTime == 0) { 2940 pw.println("<unknown>"); 2941 } else { 2942 sb.setLength(0); 2943 TimeUtils.formatDuration(now - userInfo.creationTime, sb); 2944 sb.append(" ago"); 2945 pw.println(sb); 2946 } 2947 pw.print(" Last logged in: "); 2948 if (userInfo.lastLoggedInTime == 0) { 2949 pw.println("<unknown>"); 2950 } else { 2951 sb.setLength(0); 2952 TimeUtils.formatDuration(now - userInfo.lastLoggedInTime, sb); 2953 sb.append(" ago"); 2954 pw.println(sb); 2955 } 2956 pw.print(" Last logged in fingerprint: "); 2957 pw.println(userInfo.lastLoggedInFingerprint); 2958 pw.print(" Has profile owner: "); 2959 pw.println(mIsUserManaged.get(userId)); 2960 pw.println(" Restrictions:"); 2961 synchronized (mRestrictionsLock) { 2962 UserRestrictionsUtils.dumpRestrictions( 2963 pw, " ", mBaseUserRestrictions.get(userInfo.id)); 2964 pw.println(" Device policy local restrictions:"); 2965 UserRestrictionsUtils.dumpRestrictions( 2966 pw, " ", mDevicePolicyLocalUserRestrictions.get(userInfo.id)); 2967 pw.println(" Effective restrictions:"); 2968 UserRestrictionsUtils.dumpRestrictions( 2969 pw, " ", mCachedEffectiveUserRestrictions.get(userInfo.id)); 2970 } 2971 2972 if (userData.account != null) { 2973 pw.print(" Account name: " + userData.account); 2974 pw.println(); 2975 } 2976 2977 if (userData.seedAccountName != null) { 2978 pw.print(" Seed account name: " + userData.seedAccountName); 2979 pw.println(); 2980 if (userData.seedAccountType != null) { 2981 pw.print(" account type: " + userData.seedAccountType); 2982 pw.println(); 2983 } 2984 if (userData.seedAccountOptions != null) { 2985 pw.print(" account options exist"); 2986 pw.println(); 2987 } 2988 } 2989 } 2990 } 2991 pw.println(); 2992 pw.println(" Device policy global restrictions:"); 2993 synchronized (mRestrictionsLock) { 2994 UserRestrictionsUtils 2995 .dumpRestrictions(pw, " ", mDevicePolicyGlobalUserRestrictions); 2996 } 2997 pw.println(); 2998 pw.println(" Guest restrictions:"); 2999 synchronized (mGuestRestrictions) { 3000 UserRestrictionsUtils.dumpRestrictions(pw, " ", mGuestRestrictions); 3001 } 3002 synchronized (mUsersLock) { 3003 pw.println(); 3004 pw.println(" Device managed: " + mIsDeviceManaged); 3005 } 3006 // Dump some capabilities 3007 pw.println(); 3008 pw.println(" Max users: " + UserManager.getMaxSupportedUsers()); 3009 pw.println(" Supports switchable users: " + UserManager.supportsMultipleUsers()); 3010 pw.println(" All guests ephemeral: " + Resources.getSystem().getBoolean( 3011 com.android.internal.R.bool.config_guestUserEphemeral)); 3012 } 3013 } 3014 3015 final class MainHandler extends Handler { 3016 3017 @Override 3018 public void handleMessage(Message msg) { 3019 switch (msg.what) { 3020 case WRITE_USER_MSG: 3021 removeMessages(WRITE_USER_MSG, msg.obj); 3022 synchronized (mPackagesLock) { 3023 int userId = ((UserData) msg.obj).info.id; 3024 UserData userData = getUserDataNoChecks(userId); 3025 if (userData != null) { 3026 writeUserLP(userData); 3027 } 3028 } 3029 } 3030 } 3031 } 3032 3033 /** 3034 * @param userId 3035 * @return whether the user has been initialized yet 3036 */ 3037 boolean isInitialized(int userId) { 3038 return (getUserInfo(userId).flags & UserInfo.FLAG_INITIALIZED) != 0; 3039 } 3040 3041 private class LocalService extends UserManagerInternal { 3042 @Override 3043 public void setDevicePolicyUserRestrictions(int userId, @NonNull Bundle localRestrictions, 3044 @Nullable Bundle globalRestrictions) { 3045 UserManagerService.this.setDevicePolicyUserRestrictionsInner(userId, localRestrictions, 3046 globalRestrictions); 3047 } 3048 3049 @Override 3050 public Bundle getBaseUserRestrictions(int userId) { 3051 synchronized (mRestrictionsLock) { 3052 return mBaseUserRestrictions.get(userId); 3053 } 3054 } 3055 3056 @Override 3057 public void setBaseUserRestrictionsByDpmsForMigration( 3058 int userId, Bundle baseRestrictions) { 3059 synchronized (mRestrictionsLock) { 3060 mBaseUserRestrictions.put(userId, new Bundle(baseRestrictions)); 3061 invalidateEffectiveUserRestrictionsLR(userId); 3062 } 3063 3064 final UserData userData = getUserDataNoChecks(userId); 3065 synchronized (mPackagesLock) { 3066 if (userData != null) { 3067 writeUserLP(userData); 3068 } else { 3069 Slog.w(LOG_TAG, "UserInfo not found for " + userId); 3070 } 3071 } 3072 } 3073 3074 @Override 3075 public boolean getUserRestriction(int userId, String key) { 3076 return getUserRestrictions(userId).getBoolean(key); 3077 } 3078 3079 @Override 3080 public void addUserRestrictionsListener(UserRestrictionsListener listener) { 3081 synchronized (mUserRestrictionsListeners) { 3082 mUserRestrictionsListeners.add(listener); 3083 } 3084 } 3085 3086 @Override 3087 public void removeUserRestrictionsListener(UserRestrictionsListener listener) { 3088 synchronized (mUserRestrictionsListeners) { 3089 mUserRestrictionsListeners.remove(listener); 3090 } 3091 } 3092 3093 @Override 3094 public void setDeviceManaged(boolean isManaged) { 3095 synchronized (mUsersLock) { 3096 mIsDeviceManaged = isManaged; 3097 } 3098 } 3099 3100 @Override 3101 public void setUserManaged(int userId, boolean isManaged) { 3102 synchronized (mUsersLock) { 3103 mIsUserManaged.put(userId, isManaged); 3104 } 3105 } 3106 3107 @Override 3108 public void setUserIcon(int userId, Bitmap bitmap) { 3109 long ident = Binder.clearCallingIdentity(); 3110 try { 3111 synchronized (mPackagesLock) { 3112 UserData userData = getUserDataNoChecks(userId); 3113 if (userData == null || userData.info.partial) { 3114 Slog.w(LOG_TAG, "setUserIcon: unknown user #" + userId); 3115 return; 3116 } 3117 writeBitmapLP(userData.info, bitmap); 3118 writeUserLP(userData); 3119 } 3120 sendUserInfoChangedBroadcast(userId); 3121 } finally { 3122 Binder.restoreCallingIdentity(ident); 3123 } 3124 } 3125 3126 @Override 3127 public void setForceEphemeralUsers(boolean forceEphemeralUsers) { 3128 synchronized (mUsersLock) { 3129 mForceEphemeralUsers = forceEphemeralUsers; 3130 } 3131 } 3132 3133 @Override 3134 public void removeAllUsers() { 3135 if (UserHandle.USER_SYSTEM == ActivityManager.getCurrentUser()) { 3136 // Remove the non-system users straight away. 3137 removeNonSystemUsers(); 3138 } else { 3139 // Switch to the system user first and then remove the other users. 3140 BroadcastReceiver userSwitchedReceiver = new BroadcastReceiver() { 3141 @Override 3142 public void onReceive(Context context, Intent intent) { 3143 int userId = 3144 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); 3145 if (userId != UserHandle.USER_SYSTEM) { 3146 return; 3147 } 3148 mContext.unregisterReceiver(this); 3149 removeNonSystemUsers(); 3150 } 3151 }; 3152 IntentFilter userSwitchedFilter = new IntentFilter(); 3153 userSwitchedFilter.addAction(Intent.ACTION_USER_SWITCHED); 3154 mContext.registerReceiver( 3155 userSwitchedReceiver, userSwitchedFilter, null, mHandler); 3156 3157 // Switch to the system user. 3158 ActivityManager am = 3159 (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); 3160 am.switchUser(UserHandle.USER_SYSTEM); 3161 } 3162 } 3163 3164 @Override 3165 public void onEphemeralUserStop(int userId) { 3166 synchronized (mUsersLock) { 3167 UserInfo userInfo = getUserInfoLU(userId); 3168 if (userInfo != null && userInfo.isEphemeral()) { 3169 // Do not allow switching back to the ephemeral user again as the user is going 3170 // to be deleted. 3171 userInfo.flags |= UserInfo.FLAG_DISABLED; 3172 if (userInfo.isGuest()) { 3173 // Indicate that the guest will be deleted after it stops. 3174 userInfo.guestToRemove = true; 3175 } 3176 } 3177 } 3178 } 3179 3180 @Override 3181 public UserInfo createUserEvenWhenDisallowed(String name, int flags) { 3182 UserInfo user = createUserInternalUnchecked(name, flags, UserHandle.USER_NULL); 3183 // Keep this in sync with UserManager.createUser 3184 if (user != null && !user.isAdmin()) { 3185 setUserRestriction(UserManager.DISALLOW_SMS, true, user.id); 3186 setUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS, true, user.id); 3187 } 3188 return user; 3189 } 3190 } 3191 3192 /* Remove all the users except of the system one. */ 3193 private void removeNonSystemUsers() { 3194 ArrayList<UserInfo> usersToRemove = new ArrayList<>(); 3195 synchronized (mUsersLock) { 3196 final int userSize = mUsers.size(); 3197 for (int i = 0; i < userSize; i++) { 3198 UserInfo ui = mUsers.valueAt(i).info; 3199 if (ui.id != UserHandle.USER_SYSTEM) { 3200 usersToRemove.add(ui); 3201 } 3202 } 3203 } 3204 for (UserInfo ui: usersToRemove) { 3205 removeUser(ui.id); 3206 } 3207 } 3208 3209 private class Shell extends ShellCommand { 3210 @Override 3211 public int onCommand(String cmd) { 3212 return onShellCommand(this, cmd); 3213 } 3214 3215 @Override 3216 public void onHelp() { 3217 final PrintWriter pw = getOutPrintWriter(); 3218 pw.println("User manager (user) commands:"); 3219 pw.println(" help"); 3220 pw.println(" Print this help text."); 3221 pw.println(""); 3222 pw.println(" list"); 3223 pw.println(" Prints all users on the system."); 3224 } 3225 } 3226 3227 private static void debug(String message) { 3228 Log.d(LOG_TAG, message + 3229 (DBG_WITH_STACKTRACE ? " called at\n" + Debug.getCallers(10, " ") : "")); 3230 } 3231} 3232