DevicePolicyManagerService.java revision d375476bda6226ce4c8ad57671114a7320161559
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.devicepolicy; 18 19import static android.Manifest.permission.BIND_DEVICE_ADMIN; 20import static android.Manifest.permission.MANAGE_CA_CERTIFICATES; 21import static android.app.admin.DevicePolicyManager.CODE_ACCOUNTS_NOT_EMPTY; 22import static android.app.admin.DevicePolicyManager.CODE_ADD_MANAGED_PROFILE_DISALLOWED; 23import static android.app.admin.DevicePolicyManager.CODE_CANNOT_ADD_MANAGED_PROFILE; 24import static android.app.admin.DevicePolicyManager.CODE_DEVICE_ADMIN_NOT_SUPPORTED; 25import static android.app.admin.DevicePolicyManager.CODE_HAS_DEVICE_OWNER; 26import static android.app.admin.DevicePolicyManager.CODE_HAS_PAIRED; 27import static android.app.admin.DevicePolicyManager.CODE_MANAGED_USERS_NOT_SUPPORTED; 28import static android.app.admin.DevicePolicyManager.CODE_NONSYSTEM_USER_EXISTS; 29import static android.app.admin.DevicePolicyManager.CODE_NOT_SYSTEM_USER; 30import static android.app.admin.DevicePolicyManager.CODE_NOT_SYSTEM_USER_SPLIT; 31import static android.app.admin.DevicePolicyManager.CODE_OK; 32import static android.app.admin.DevicePolicyManager.CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 33import static android.app.admin.DevicePolicyManager.CODE_SYSTEM_USER; 34import static android.app.admin.DevicePolicyManager.CODE_USER_HAS_PROFILE_OWNER; 35import static android.app.admin.DevicePolicyManager.CODE_USER_NOT_RUNNING; 36import static android.app.admin.DevicePolicyManager.CODE_USER_SETUP_COMPLETED; 37import static android.app.admin.DevicePolicyManager.DELEGATION_APP_RESTRICTIONS; 38import static android.app.admin.DevicePolicyManager.DELEGATION_BLOCK_UNINSTALL; 39import static android.app.admin.DevicePolicyManager.DELEGATION_CERT_INSTALL; 40import static android.app.admin.DevicePolicyManager.DELEGATION_ENABLE_SYSTEM_APP; 41import static android.app.admin.DevicePolicyManager.DELEGATION_KEEP_UNINSTALLED_PACKAGES; 42import static android.app.admin.DevicePolicyManager.DELEGATION_PACKAGE_ACCESS; 43import static android.app.admin.DevicePolicyManager.DELEGATION_PERMISSION_GRANT; 44import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 45import static android.app.admin.DevicePolicyManager.PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 46import static android.app.admin.DevicePolicyManager.START_USER_IN_BACKGROUND; 47import static android.app.admin.DevicePolicyManager.WIPE_EUICC; 48import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 49import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 50import static android.content.pm.PackageManager.MATCH_UNINSTALLED_PACKAGES; 51import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_ENTRY_POINT_ADB; 52import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 53import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 54import static org.xmlpull.v1.XmlPullParser.END_TAG; 55import static org.xmlpull.v1.XmlPullParser.TEXT; 56 57import android.Manifest.permission; 58import android.accessibilityservice.AccessibilityServiceInfo; 59import android.accounts.Account; 60import android.accounts.AccountManager; 61import android.annotation.NonNull; 62import android.annotation.Nullable; 63import android.annotation.UserIdInt; 64import android.app.Activity; 65import android.app.ActivityManager; 66import android.app.ActivityManagerInternal; 67import android.app.AlarmManager; 68import android.app.AppGlobals; 69import android.app.IActivityManager; 70import android.app.IApplicationThread; 71import android.app.IServiceConnection; 72import android.app.Notification; 73import android.app.NotificationManager; 74import android.app.PendingIntent; 75import android.app.StatusBarManager; 76import android.app.admin.DeviceAdminInfo; 77import android.app.admin.DeviceAdminReceiver; 78import android.app.admin.DevicePolicyManager; 79import android.app.admin.DevicePolicyManagerInternal; 80import android.app.admin.IDevicePolicyManager; 81import android.app.admin.NetworkEvent; 82import android.app.admin.PasswordMetrics; 83import android.app.admin.SecurityLog; 84import android.app.admin.SecurityLog.SecurityEvent; 85import android.app.admin.SystemUpdateInfo; 86import android.app.admin.SystemUpdatePolicy; 87import android.app.backup.IBackupManager; 88import android.app.trust.TrustManager; 89import android.content.BroadcastReceiver; 90import android.content.ComponentName; 91import android.content.Context; 92import android.content.Intent; 93import android.content.IntentFilter; 94import android.content.pm.ActivityInfo; 95import android.content.pm.ApplicationInfo; 96import android.content.pm.IPackageDataObserver; 97import android.content.pm.IPackageManager; 98import android.content.pm.PackageInfo; 99import android.content.pm.PackageManager; 100import android.content.pm.PackageManager.NameNotFoundException; 101import android.content.pm.PackageManagerInternal; 102import android.content.pm.ParceledListSlice; 103import android.content.pm.PermissionInfo; 104import android.content.pm.ResolveInfo; 105import android.content.pm.ServiceInfo; 106import android.content.pm.StringParceledListSlice; 107import android.content.pm.UserInfo; 108import android.content.res.Resources; 109import android.database.ContentObserver; 110import android.graphics.Bitmap; 111import android.graphics.Color; 112import android.media.AudioManager; 113import android.media.IAudioService; 114import android.net.ConnectivityManager; 115import android.net.IIpConnectivityMetrics; 116import android.net.ProxyInfo; 117import android.net.Uri; 118import android.net.metrics.IpConnectivityLog; 119import android.net.wifi.WifiInfo; 120import android.net.wifi.WifiManager; 121import android.os.Binder; 122import android.os.Build; 123import android.os.Bundle; 124import android.os.Environment; 125import android.os.FileUtils; 126import android.os.Handler; 127import android.os.IBinder; 128import android.os.Looper; 129import android.os.ParcelFileDescriptor; 130import android.os.PersistableBundle; 131import android.os.PowerManager; 132import android.os.PowerManagerInternal; 133import android.os.Process; 134import android.os.RecoverySystem; 135import android.os.RemoteCallback; 136import android.os.RemoteException; 137import android.os.ServiceManager; 138import android.os.SystemClock; 139import android.os.SystemProperties; 140import android.os.UserHandle; 141import android.os.UserManager; 142import android.os.UserManagerInternal; 143import android.os.storage.StorageManager; 144import android.provider.ContactsContract.QuickContact; 145import android.provider.ContactsInternal; 146import android.provider.Settings; 147import android.provider.Settings.Global; 148import android.security.IKeyChainAliasCallback; 149import android.security.IKeyChainService; 150import android.security.KeyChain; 151import android.security.KeyChain.KeyChainConnection; 152import android.service.persistentdata.PersistentDataBlockManager; 153import android.telephony.TelephonyManager; 154import android.text.TextUtils; 155import android.util.ArrayMap; 156import android.util.ArraySet; 157import android.util.Log; 158import android.util.Pair; 159import android.util.Slog; 160import android.util.SparseArray; 161import android.util.Xml; 162import android.view.IWindowManager; 163import android.view.accessibility.AccessibilityManager; 164import android.view.accessibility.IAccessibilityManager; 165import android.view.inputmethod.InputMethodInfo; 166import android.view.inputmethod.InputMethodManager; 167 168import com.android.internal.R; 169import com.android.internal.annotations.GuardedBy; 170import com.android.internal.annotations.VisibleForTesting; 171import com.android.internal.logging.MetricsLogger; 172import com.android.internal.messages.nano.SystemMessageProto.SystemMessage; 173import com.android.internal.notification.SystemNotificationChannels; 174import com.android.internal.os.BackgroundThread; 175import com.android.internal.statusbar.IStatusBarService; 176import com.android.internal.util.DumpUtils; 177import com.android.internal.util.FastXmlSerializer; 178import com.android.internal.util.JournaledFile; 179import com.android.internal.util.Preconditions; 180import com.android.internal.util.XmlUtils; 181import com.android.internal.widget.LockPatternUtils; 182import com.android.server.LocalServices; 183import com.android.server.SystemService; 184import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 185import com.android.server.pm.UserRestrictionsUtils; 186import com.google.android.collect.Sets; 187 188import org.xmlpull.v1.XmlPullParser; 189import org.xmlpull.v1.XmlPullParserException; 190import org.xmlpull.v1.XmlSerializer; 191 192import java.io.File; 193import java.io.FileDescriptor; 194import java.io.FileInputStream; 195import java.io.FileNotFoundException; 196import java.io.FileOutputStream; 197import java.io.IOException; 198import java.io.PrintWriter; 199import java.nio.charset.StandardCharsets; 200import java.text.DateFormat; 201import java.util.ArrayList; 202import java.util.Arrays; 203import java.util.Collection; 204import java.util.Collections; 205import java.util.Date; 206import java.util.List; 207import java.util.Map.Entry; 208import java.util.Set; 209import java.util.concurrent.TimeUnit; 210import java.util.concurrent.atomic.AtomicBoolean; 211 212/** 213 * Implementation of the device policy APIs. 214 */ 215public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 216 217 protected static final String LOG_TAG = "DevicePolicyManager"; 218 219 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 220 221 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 222 223 private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate"; 224 225 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 226 227 private static final String TAG_STATUS_BAR = "statusbar"; 228 229 private static final String ATTR_DISABLED = "disabled"; 230 231 private static final String ATTR_NAME = "name"; 232 233 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 234 "do-not-ask-credentials-on-boot"; 235 236 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 237 238 private static final String TAG_LAST_SECURITY_LOG_RETRIEVAL = "last-security-log-retrieval"; 239 240 private static final String TAG_LAST_BUG_REPORT_REQUEST = "last-bug-report-request"; 241 242 private static final String TAG_LAST_NETWORK_LOG_RETRIEVAL = "last-network-log-retrieval"; 243 244 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 245 246 private static final String TAG_CURRENT_INPUT_METHOD_SET = "current-ime-set"; 247 248 private static final String TAG_OWNER_INSTALLED_CA_CERT = "owner-installed-ca-cert"; 249 250 private static final String ATTR_ID = "id"; 251 252 private static final String ATTR_VALUE = "value"; 253 254 private static final String ATTR_ALIAS = "alias"; 255 256 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 257 258 private static final String TAG_PASSWORD_TOKEN_HANDLE = "password-token"; 259 260 private static final String TAG_PASSWORD_VALIDITY = "password-validity"; 261 262 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 263 264 private static final long MS_PER_DAY = TimeUnit.DAYS.toMillis(1); 265 266 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 267 268 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 269 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 270 271 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 272 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 273 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 274 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 275 private static final String ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED = 276 "device-provisioning-config-applied"; 277 private static final String ATTR_DEVICE_PAIRED = "device-paired"; 278 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 279 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 280 = "application-restrictions-manager"; 281 282 // Comprehensive list of delegations. 283 private static final String DELEGATIONS[] = { 284 DELEGATION_CERT_INSTALL, 285 DELEGATION_APP_RESTRICTIONS, 286 DELEGATION_BLOCK_UNINSTALL, 287 DELEGATION_ENABLE_SYSTEM_APP, 288 DELEGATION_KEEP_UNINSTALLED_PACKAGES, 289 DELEGATION_PACKAGE_ACCESS, 290 DELEGATION_PERMISSION_GRANT 291 }; 292 293 /** 294 * System property whose value is either "true" or "false", indicating whether 295 * device owner is present. 296 */ 297 private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner"; 298 299 private static final int STATUS_BAR_DISABLE_MASK = 300 StatusBarManager.DISABLE_EXPAND | 301 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 302 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 303 StatusBarManager.DISABLE_SEARCH; 304 305 private static final int STATUS_BAR_DISABLE2_MASK = 306 StatusBarManager.DISABLE2_QUICK_SETTINGS; 307 308 private static final Set<String> SECURE_SETTINGS_WHITELIST; 309 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 310 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 311 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 312 static { 313 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 314 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 315 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 316 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 317 318 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 319 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 320 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 321 322 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 323 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 324 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 325 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 326 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 327 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 328 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 329 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 330 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 331 332 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 333 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 334 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 335 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 336 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 337 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 338 } 339 340 /** 341 * Keyguard features that when set on a profile affect the profile content or challenge only. 342 * These cannot be set on the managed profile's parent DPM instance 343 */ 344 private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY = 345 DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 346 347 /** Keyguard features that are allowed to be set on a managed profile */ 348 private static final int PROFILE_KEYGUARD_FEATURES = 349 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY; 350 351 private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000; 352 353 /** 354 * Minimum timeout in milliseconds after which unlocking with weak auth times out, 355 * i.e. the user has to use a strong authentication method like password, PIN or pattern. 356 */ 357 private static final long MINIMUM_STRONG_AUTH_TIMEOUT_MS = TimeUnit.HOURS.toMillis(1); 358 359 /** 360 * Strings logged with {@link 361 * com.android.internal.logging.nano.MetricsProto.MetricsEvent#PROVISIONING_ENTRY_POINT_ADB}. 362 */ 363 private static final String LOG_TAG_PROFILE_OWNER = "profile-owner"; 364 private static final String LOG_TAG_DEVICE_OWNER = "device-owner"; 365 366 final Context mContext; 367 final Injector mInjector; 368 final IPackageManager mIPackageManager; 369 final UserManager mUserManager; 370 final UserManagerInternal mUserManagerInternal; 371 final TelephonyManager mTelephonyManager; 372 private final LockPatternUtils mLockPatternUtils; 373 private final DevicePolicyConstants mConstants; 374 private final DeviceAdminServiceController mDeviceAdminServiceController; 375 376 /** 377 * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p 378 * is requested for user u. 379 */ 380 private final Set<Pair<String, Integer>> mPackagesToRemove = 381 new ArraySet<Pair<String, Integer>>(); 382 383 final LocalService mLocalService; 384 385 // Stores and loads state on device and profile owners. 386 @VisibleForTesting 387 final Owners mOwners; 388 389 private final Binder mToken = new Binder(); 390 391 /** 392 * Whether or not device admin feature is supported. If it isn't return defaults for all 393 * public methods. 394 */ 395 boolean mHasFeature; 396 397 /** 398 * Whether or not this device is a watch. 399 */ 400 boolean mIsWatch; 401 402 private final CertificateMonitor mCertificateMonitor; 403 private final SecurityLogMonitor mSecurityLogMonitor; 404 private NetworkLogger mNetworkLogger; 405 406 private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean(); 407 private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean(); 408 409 private SetupContentObserver mSetupContentObserver; 410 411 private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() { 412 @Override 413 public void run() { 414 if(mRemoteBugreportServiceIsActive.get()) { 415 onBugreportFailed(); 416 } 417 } 418 }; 419 420 /** Listens only if mHasFeature == true. */ 421 private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() { 422 423 @Override 424 public void onReceive(Context context, Intent intent) { 425 if (DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction()) 426 && mRemoteBugreportServiceIsActive.get()) { 427 onBugreportFinished(intent); 428 } 429 } 430 }; 431 432 /** Listens only if mHasFeature == true. */ 433 private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() { 434 435 @Override 436 public void onReceive(Context context, Intent intent) { 437 String action = intent.getAction(); 438 mInjector.getNotificationManager().cancel(LOG_TAG, 439 RemoteBugreportUtils.NOTIFICATION_ID); 440 if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED.equals(action)) { 441 onBugreportSharingAccepted(); 442 } else if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED.equals(action)) { 443 onBugreportSharingDeclined(); 444 } 445 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 446 } 447 }; 448 449 public static final class Lifecycle extends SystemService { 450 private DevicePolicyManagerService mService; 451 452 public Lifecycle(Context context) { 453 super(context); 454 mService = new DevicePolicyManagerService(context); 455 } 456 457 @Override 458 public void onStart() { 459 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 460 } 461 462 @Override 463 public void onBootPhase(int phase) { 464 mService.systemReady(phase); 465 } 466 467 @Override 468 public void onStartUser(int userHandle) { 469 mService.handleStartUser(userHandle); 470 } 471 472 @Override 473 public void onUnlockUser(int userHandle) { 474 mService.handleUnlockUser(userHandle); 475 } 476 477 @Override 478 public void onStopUser(int userHandle) { 479 mService.handleStopUser(userHandle); 480 } 481 } 482 483 public static class DevicePolicyData { 484 @NonNull PasswordMetrics mActivePasswordMetrics = new PasswordMetrics(); 485 int mFailedPasswordAttempts = 0; 486 boolean mPasswordStateHasBeenSetSinceBoot = false; 487 boolean mPasswordValidAtLastCheckpoint = false; 488 489 int mUserHandle; 490 int mPasswordOwner = -1; 491 long mLastMaximumTimeToLock = -1; 492 boolean mUserSetupComplete = false; 493 boolean mPaired = false; 494 int mUserProvisioningState; 495 int mPermissionPolicy; 496 497 boolean mDeviceProvisioningConfigApplied = false; 498 499 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 500 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 501 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 502 503 // TODO(b/35385311): Keep track of metadata in TrustedCertificateStore instead. 504 final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>(); 505 506 // This is the list of component allowed to start lock task mode. 507 List<String> mLockTaskPackages = new ArrayList<>(); 508 509 boolean mStatusBarDisabled = false; 510 511 ComponentName mRestrictionsProvider; 512 513 // Map of delegate package to delegation scopes 514 final ArrayMap<String, List<String>> mDelegationMap = new ArrayMap<>(); 515 516 boolean doNotAskCredentialsOnBoot = false; 517 518 Set<String> mAffiliationIds = new ArraySet<>(); 519 520 long mLastSecurityLogRetrievalTime = -1; 521 522 long mLastBugReportRequestTime = -1; 523 524 long mLastNetworkLogsRetrievalTime = -1; 525 526 boolean mCurrentInputMethodSet = false; 527 528 // TODO(b/35385311): Keep track of metadata in TrustedCertificateStore instead. 529 Set<String> mOwnerInstalledCaCerts = new ArraySet<>(); 530 531 // Used for initialization of users created by createAndManageUser. 532 boolean mAdminBroadcastPending = false; 533 PersistableBundle mInitBundle = null; 534 535 long mPasswordTokenHandle = 0; 536 537 public DevicePolicyData(int userHandle) { 538 mUserHandle = userHandle; 539 } 540 } 541 542 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 543 544 final Handler mHandler; 545 final Handler mBackgroundHandler; 546 547 /** Listens only if mHasFeature == true. */ 548 final BroadcastReceiver mReceiver = new BroadcastReceiver() { 549 @Override 550 public void onReceive(Context context, Intent intent) { 551 final String action = intent.getAction(); 552 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 553 getSendingUserId()); 554 555 /* 556 * Network logging would ideally be started in setDeviceOwnerSystemPropertyLocked(), 557 * however it's too early in the boot process to register with IIpConnectivityMetrics 558 * to listen for events. 559 */ 560 if (Intent.ACTION_USER_STARTED.equals(action) 561 && userHandle == mOwners.getDeviceOwnerUserId()) { 562 synchronized (DevicePolicyManagerService.this) { 563 if (isNetworkLoggingEnabledInternalLocked()) { 564 setNetworkLoggingActiveInternal(true); 565 } 566 } 567 } 568 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 569 && userHandle == mOwners.getDeviceOwnerUserId() 570 && getDeviceOwnerRemoteBugreportUri() != null) { 571 IntentFilter filterConsent = new IntentFilter(); 572 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 573 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 574 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 575 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 576 RemoteBugreportUtils.NOTIFICATION_ID, 577 RemoteBugreportUtils.buildNotification(mContext, 578 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 579 UserHandle.ALL); 580 } 581 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 582 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 583 if (VERBOSE_LOG) { 584 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 585 + action + " for user " + userHandle); 586 } 587 mHandler.post(new Runnable() { 588 @Override 589 public void run() { 590 handlePasswordExpirationNotification(userHandle); 591 } 592 }); 593 } 594 595 if (Intent.ACTION_USER_ADDED.equals(action)) { 596 sendUserAddedOrRemovedCommand(DeviceAdminReceiver.ACTION_USER_ADDED, userHandle); 597 synchronized (DevicePolicyManagerService.this) { 598 // It might take a while for the user to become affiliated. Make security 599 // and network logging unavailable in the meantime. 600 maybePauseDeviceWideLoggingLocked(); 601 } 602 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 603 sendUserAddedOrRemovedCommand(DeviceAdminReceiver.ACTION_USER_REMOVED, userHandle); 604 synchronized (DevicePolicyManagerService.this) { 605 // Check whether the user is affiliated, *before* removing its data. 606 boolean isRemovedUserAffiliated = isUserAffiliatedWithDeviceLocked(userHandle); 607 removeUserData(userHandle); 608 if (!isRemovedUserAffiliated) { 609 // We discard the logs when unaffiliated users are deleted (so that the 610 // device owner cannot retrieve data about that user after it's gone). 611 discardDeviceWideLogsLocked(); 612 // Resume logging if all remaining users are affiliated. 613 maybeResumeDeviceWideLoggingLocked(); 614 } 615 } 616 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 617 synchronized (DevicePolicyManagerService.this) { 618 maybeSendAdminEnabledBroadcastLocked(userHandle); 619 // Reset the policy data 620 mUserData.remove(userHandle); 621 } 622 handlePackagesChanged(null /* check all admins */, userHandle); 623 } else if (Intent.ACTION_USER_UNLOCKED.equals(action)) { 624 synchronized (DevicePolicyManagerService.this) { 625 maybeSendAdminEnabledBroadcastLocked(userHandle); 626 } 627 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 628 handlePackagesChanged(null /* check all admins */, userHandle); 629 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 630 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 631 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 632 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 633 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 634 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 635 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 636 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 637 clearWipeProfileNotification(); 638 } 639 } 640 641 private void sendUserAddedOrRemovedCommand(String action, int userHandle) { 642 synchronized (DevicePolicyManagerService.this) { 643 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 644 if (deviceOwner != null) { 645 Bundle extras = new Bundle(); 646 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 647 sendAdminCommandLocked(deviceOwner, action, extras, null); 648 } 649 } 650 } 651 }; 652 653 static class ActiveAdmin { 654 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 655 private static final String TAG_TEST_ONLY_ADMIN = "test-only-admin"; 656 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 657 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 658 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 659 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 660 = "disable-bt-contacts-sharing"; 661 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 662 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 663 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 664 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 665 private static final String TAG_IS_NETWORK_LOGGING_ENABLED = "is_network_logging_enabled"; 666 private static final String TAG_ACCOUNT_TYPE = "account-type"; 667 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 668 = "permitted-accessiblity-services"; 669 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 670 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 671 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 672 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 673 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 674 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 675 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 676 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 677 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 678 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 679 private static final String TAG_PERMITTED_NOTIFICATION_LISTENERS = 680 "permitted-notification-listeners"; 681 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 682 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 683 private static final String TAG_STRONG_AUTH_UNLOCK_TIMEOUT = "strong-auth-unlock-timeout"; 684 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 685 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 686 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 687 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 688 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 689 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 690 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 691 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 692 private static final String ATTR_VALUE = "value"; 693 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 694 private static final String TAG_POLICIES = "policies"; 695 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 696 "cross-profile-widget-providers"; 697 private static final String TAG_PROVIDER = "provider"; 698 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 699 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 700 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 701 private static final String TAG_DEFAULT_ENABLED_USER_RESTRICTIONS = 702 "default-enabled-user-restrictions"; 703 private static final String TAG_RESTRICTION = "restriction"; 704 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 705 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 706 private static final String TAG_PARENT_ADMIN = "parent-admin"; 707 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 708 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 709 private static final String ATTR_LAST_NETWORK_LOGGING_NOTIFICATION = "last-notification"; 710 private static final String ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS = "num-notifications"; 711 712 final DeviceAdminInfo info; 713 714 715 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 716 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 717 718 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 719 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 720 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 721 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 722 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 723 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 724 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 725 @NonNull 726 PasswordMetrics minimumPasswordMetrics = new PasswordMetrics( 727 DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED, DEF_MINIMUM_PASSWORD_LENGTH, 728 DEF_MINIMUM_PASSWORD_LETTERS, DEF_MINIMUM_PASSWORD_UPPER_CASE, 729 DEF_MINIMUM_PASSWORD_LOWER_CASE, DEF_MINIMUM_PASSWORD_NUMERIC, 730 DEF_MINIMUM_PASSWORD_SYMBOLS, DEF_MINIMUM_PASSWORD_NON_LETTER); 731 732 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 733 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 734 735 long strongAuthUnlockTimeout = 0; // admin doesn't participate by default 736 737 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 738 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 739 740 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 741 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 742 743 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 744 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 745 746 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 747 748 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 749 750 boolean encryptionRequested = false; 751 boolean testOnlyAdmin = false; 752 boolean disableCamera = false; 753 boolean disableCallerId = false; 754 boolean disableContactsSearch = false; 755 boolean disableBluetoothContactSharing = true; 756 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 757 boolean requireAutoTime = false; // Can only be set by a device owner. 758 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 759 boolean isNetworkLoggingEnabled = false; // Can only be set by a device owner. 760 761 // one notification after enabling + one more after reboots 762 static final int DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN = 2; 763 int numNetworkLoggingNotifications = 0; 764 long lastNetworkLoggingNotificationTimeMs = 0; // Time in milliseconds since epoch 765 766 ActiveAdmin parentAdmin; 767 final boolean isParent; 768 769 static class TrustAgentInfo { 770 public PersistableBundle options; 771 TrustAgentInfo(PersistableBundle bundle) { 772 options = bundle; 773 } 774 } 775 776 final Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 777 778 // The list of permitted accessibility services package namesas set by a profile 779 // or device owner. Null means all accessibility services are allowed, empty means 780 // none except system services are allowed. 781 List<String> permittedAccessiblityServices; 782 783 // The list of permitted input methods package names as set by a profile or device owner. 784 // Null means all input methods are allowed, empty means none except system imes are 785 // allowed. 786 List<String> permittedInputMethods; 787 788 // The list of packages allowed to use a NotificationListenerService to receive events for 789 // notifications from this user. Null means that all packages are allowed. Empty list means 790 // that only packages from the system are allowed. 791 List<String> permittedNotificationListeners; 792 793 // List of package names to keep cached. 794 List<String> keepUninstalledPackages; 795 796 // TODO: review implementation decisions with frameworks team 797 boolean specifiesGlobalProxy = false; 798 String globalProxySpec = null; 799 String globalProxyExclusionList = null; 800 801 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 802 803 List<String> crossProfileWidgetProviders; 804 805 Bundle userRestrictions; 806 807 // User restrictions that have already been enabled by default for this admin (either when 808 // setting the device or profile owner, or during a system update if one of those "enabled 809 // by default" restrictions is newly added). 810 final Set<String> defaultEnabledRestrictionsAlreadySet = new ArraySet<>(); 811 812 // Support text provided by the admin to display to the user. 813 CharSequence shortSupportMessage = null; 814 CharSequence longSupportMessage = null; 815 816 // Background color of confirm credentials screen. Default: teal. 817 static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B"); 818 int organizationColor = DEF_ORGANIZATION_COLOR; 819 820 // Default title of confirm credentials screen 821 String organizationName = null; 822 823 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 824 info = _info; 825 isParent = parent; 826 } 827 828 ActiveAdmin getParentActiveAdmin() { 829 Preconditions.checkState(!isParent); 830 831 if (parentAdmin == null) { 832 parentAdmin = new ActiveAdmin(info, /* parent */ true); 833 } 834 return parentAdmin; 835 } 836 837 boolean hasParentActiveAdmin() { 838 return parentAdmin != null; 839 } 840 841 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 842 843 public UserHandle getUserHandle() { 844 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 845 } 846 847 void writeToXml(XmlSerializer out) 848 throws IllegalArgumentException, IllegalStateException, IOException { 849 out.startTag(null, TAG_POLICIES); 850 info.writePoliciesToXml(out); 851 out.endTag(null, TAG_POLICIES); 852 if (minimumPasswordMetrics.quality 853 != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 854 out.startTag(null, TAG_PASSWORD_QUALITY); 855 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.quality)); 856 out.endTag(null, TAG_PASSWORD_QUALITY); 857 if (minimumPasswordMetrics.length != DEF_MINIMUM_PASSWORD_LENGTH) { 858 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 859 out.attribute( 860 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.length)); 861 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 862 } 863 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 864 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 865 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 866 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 867 } 868 if (minimumPasswordMetrics.upperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 869 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 870 out.attribute( 871 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.upperCase)); 872 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 873 } 874 if (minimumPasswordMetrics.lowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 875 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 876 out.attribute( 877 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.lowerCase)); 878 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 879 } 880 if (minimumPasswordMetrics.letters != DEF_MINIMUM_PASSWORD_LETTERS) { 881 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 882 out.attribute( 883 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.letters)); 884 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 885 } 886 if (minimumPasswordMetrics.numeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 887 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 888 out.attribute( 889 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.numeric)); 890 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 891 } 892 if (minimumPasswordMetrics.symbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 893 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 894 out.attribute( 895 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.symbols)); 896 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 897 } 898 if (minimumPasswordMetrics.nonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 899 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 900 out.attribute( 901 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.nonLetter)); 902 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 903 } 904 } 905 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 906 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 907 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 908 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 909 } 910 if (strongAuthUnlockTimeout != DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 911 out.startTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 912 out.attribute(null, ATTR_VALUE, Long.toString(strongAuthUnlockTimeout)); 913 out.endTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 914 } 915 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 916 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 917 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 918 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 919 } 920 if (specifiesGlobalProxy) { 921 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 922 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 923 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 924 if (globalProxySpec != null) { 925 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 926 out.attribute(null, ATTR_VALUE, globalProxySpec); 927 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 928 } 929 if (globalProxyExclusionList != null) { 930 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 931 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 932 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 933 } 934 } 935 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 936 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 937 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 938 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 939 } 940 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 941 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 942 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 943 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 944 } 945 if (encryptionRequested) { 946 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 947 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 948 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 949 } 950 if (testOnlyAdmin) { 951 out.startTag(null, TAG_TEST_ONLY_ADMIN); 952 out.attribute(null, ATTR_VALUE, Boolean.toString(testOnlyAdmin)); 953 out.endTag(null, TAG_TEST_ONLY_ADMIN); 954 } 955 if (disableCamera) { 956 out.startTag(null, TAG_DISABLE_CAMERA); 957 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 958 out.endTag(null, TAG_DISABLE_CAMERA); 959 } 960 if (disableCallerId) { 961 out.startTag(null, TAG_DISABLE_CALLER_ID); 962 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 963 out.endTag(null, TAG_DISABLE_CALLER_ID); 964 } 965 if (disableContactsSearch) { 966 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 967 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 968 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 969 } 970 if (!disableBluetoothContactSharing) { 971 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 972 out.attribute(null, ATTR_VALUE, 973 Boolean.toString(disableBluetoothContactSharing)); 974 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 975 } 976 if (disableScreenCapture) { 977 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 978 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 979 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 980 } 981 if (requireAutoTime) { 982 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 983 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 984 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 985 } 986 if (forceEphemeralUsers) { 987 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 988 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 989 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 990 } 991 if (isNetworkLoggingEnabled) { 992 out.startTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 993 out.attribute(null, ATTR_VALUE, Boolean.toString(isNetworkLoggingEnabled)); 994 out.attribute(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS, 995 Integer.toString(numNetworkLoggingNotifications)); 996 out.attribute(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION, 997 Long.toString(lastNetworkLoggingNotificationTimeMs)); 998 out.endTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 999 } 1000 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 1001 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 1002 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 1003 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 1004 } 1005 if (!accountTypesWithManagementDisabled.isEmpty()) { 1006 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 1007 writeAttributeValuesToXml( 1008 out, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1009 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 1010 } 1011 if (!trustAgentInfos.isEmpty()) { 1012 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 1013 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1014 for (Entry<String, TrustAgentInfo> entry : set) { 1015 TrustAgentInfo trustAgentInfo = entry.getValue(); 1016 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 1017 out.attribute(null, ATTR_VALUE, entry.getKey()); 1018 if (trustAgentInfo.options != null) { 1019 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1020 try { 1021 trustAgentInfo.options.saveToXml(out); 1022 } catch (XmlPullParserException e) { 1023 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 1024 } 1025 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1026 } 1027 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 1028 } 1029 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1030 } 1031 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 1032 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1033 writeAttributeValuesToXml(out, TAG_PROVIDER, crossProfileWidgetProviders); 1034 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1035 } 1036 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 1037 permittedAccessiblityServices); 1038 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 1039 writePackageListToXml(out, TAG_PERMITTED_NOTIFICATION_LISTENERS, 1040 permittedNotificationListeners); 1041 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 1042 if (hasUserRestrictions()) { 1043 UserRestrictionsUtils.writeRestrictions( 1044 out, userRestrictions, TAG_USER_RESTRICTIONS); 1045 } 1046 if (!defaultEnabledRestrictionsAlreadySet.isEmpty()) { 1047 out.startTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1048 writeAttributeValuesToXml( 1049 out, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1050 out.endTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1051 } 1052 if (!TextUtils.isEmpty(shortSupportMessage)) { 1053 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1054 out.text(shortSupportMessage.toString()); 1055 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1056 } 1057 if (!TextUtils.isEmpty(longSupportMessage)) { 1058 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 1059 out.text(longSupportMessage.toString()); 1060 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 1061 } 1062 if (parentAdmin != null) { 1063 out.startTag(null, TAG_PARENT_ADMIN); 1064 parentAdmin.writeToXml(out); 1065 out.endTag(null, TAG_PARENT_ADMIN); 1066 } 1067 if (organizationColor != DEF_ORGANIZATION_COLOR) { 1068 out.startTag(null, TAG_ORGANIZATION_COLOR); 1069 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 1070 out.endTag(null, TAG_ORGANIZATION_COLOR); 1071 } 1072 if (organizationName != null) { 1073 out.startTag(null, TAG_ORGANIZATION_NAME); 1074 out.text(organizationName); 1075 out.endTag(null, TAG_ORGANIZATION_NAME); 1076 } 1077 } 1078 1079 void writePackageListToXml(XmlSerializer out, String outerTag, 1080 List<String> packageList) 1081 throws IllegalArgumentException, IllegalStateException, IOException { 1082 if (packageList == null) { 1083 return; 1084 } 1085 1086 out.startTag(null, outerTag); 1087 writeAttributeValuesToXml(out, TAG_PACKAGE_LIST_ITEM, packageList); 1088 out.endTag(null, outerTag); 1089 } 1090 1091 void writeAttributeValuesToXml(XmlSerializer out, String tag, 1092 @NonNull Collection<String> values) throws IOException { 1093 for (String value : values) { 1094 out.startTag(null, tag); 1095 out.attribute(null, ATTR_VALUE, value); 1096 out.endTag(null, tag); 1097 } 1098 } 1099 1100 void readFromXml(XmlPullParser parser) 1101 throws XmlPullParserException, IOException { 1102 int outerDepth = parser.getDepth(); 1103 int type; 1104 while ((type=parser.next()) != END_DOCUMENT 1105 && (type != END_TAG || parser.getDepth() > outerDepth)) { 1106 if (type == END_TAG || type == TEXT) { 1107 continue; 1108 } 1109 String tag = parser.getName(); 1110 if (TAG_POLICIES.equals(tag)) { 1111 info.readPoliciesFromXml(parser); 1112 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 1113 minimumPasswordMetrics.quality = Integer.parseInt( 1114 parser.getAttributeValue(null, ATTR_VALUE)); 1115 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 1116 minimumPasswordMetrics.length = Integer.parseInt( 1117 parser.getAttributeValue(null, ATTR_VALUE)); 1118 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 1119 passwordHistoryLength = Integer.parseInt( 1120 parser.getAttributeValue(null, ATTR_VALUE)); 1121 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 1122 minimumPasswordMetrics.upperCase = Integer.parseInt( 1123 parser.getAttributeValue(null, ATTR_VALUE)); 1124 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 1125 minimumPasswordMetrics.lowerCase = Integer.parseInt( 1126 parser.getAttributeValue(null, ATTR_VALUE)); 1127 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 1128 minimumPasswordMetrics.letters = Integer.parseInt( 1129 parser.getAttributeValue(null, ATTR_VALUE)); 1130 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 1131 minimumPasswordMetrics.numeric = Integer.parseInt( 1132 parser.getAttributeValue(null, ATTR_VALUE)); 1133 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 1134 minimumPasswordMetrics.symbols = Integer.parseInt( 1135 parser.getAttributeValue(null, ATTR_VALUE)); 1136 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 1137 minimumPasswordMetrics.nonLetter = Integer.parseInt( 1138 parser.getAttributeValue(null, ATTR_VALUE)); 1139 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 1140 maximumTimeToUnlock = Long.parseLong( 1141 parser.getAttributeValue(null, ATTR_VALUE)); 1142 } else if (TAG_STRONG_AUTH_UNLOCK_TIMEOUT.equals(tag)) { 1143 strongAuthUnlockTimeout = Long.parseLong( 1144 parser.getAttributeValue(null, ATTR_VALUE)); 1145 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 1146 maximumFailedPasswordsForWipe = Integer.parseInt( 1147 parser.getAttributeValue(null, ATTR_VALUE)); 1148 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 1149 specifiesGlobalProxy = Boolean.parseBoolean( 1150 parser.getAttributeValue(null, ATTR_VALUE)); 1151 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 1152 globalProxySpec = 1153 parser.getAttributeValue(null, ATTR_VALUE); 1154 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 1155 globalProxyExclusionList = 1156 parser.getAttributeValue(null, ATTR_VALUE); 1157 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 1158 passwordExpirationTimeout = Long.parseLong( 1159 parser.getAttributeValue(null, ATTR_VALUE)); 1160 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 1161 passwordExpirationDate = Long.parseLong( 1162 parser.getAttributeValue(null, ATTR_VALUE)); 1163 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 1164 encryptionRequested = Boolean.parseBoolean( 1165 parser.getAttributeValue(null, ATTR_VALUE)); 1166 } else if (TAG_TEST_ONLY_ADMIN.equals(tag)) { 1167 testOnlyAdmin = Boolean.parseBoolean( 1168 parser.getAttributeValue(null, ATTR_VALUE)); 1169 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 1170 disableCamera = Boolean.parseBoolean( 1171 parser.getAttributeValue(null, ATTR_VALUE)); 1172 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 1173 disableCallerId = Boolean.parseBoolean( 1174 parser.getAttributeValue(null, ATTR_VALUE)); 1175 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 1176 disableContactsSearch = Boolean.parseBoolean( 1177 parser.getAttributeValue(null, ATTR_VALUE)); 1178 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 1179 disableBluetoothContactSharing = Boolean.parseBoolean(parser 1180 .getAttributeValue(null, ATTR_VALUE)); 1181 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 1182 disableScreenCapture = Boolean.parseBoolean( 1183 parser.getAttributeValue(null, ATTR_VALUE)); 1184 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 1185 requireAutoTime = Boolean.parseBoolean( 1186 parser.getAttributeValue(null, ATTR_VALUE)); 1187 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 1188 forceEphemeralUsers = Boolean.parseBoolean( 1189 parser.getAttributeValue(null, ATTR_VALUE)); 1190 } else if (TAG_IS_NETWORK_LOGGING_ENABLED.equals(tag)) { 1191 isNetworkLoggingEnabled = Boolean.parseBoolean( 1192 parser.getAttributeValue(null, ATTR_VALUE)); 1193 lastNetworkLoggingNotificationTimeMs = Long.parseLong( 1194 parser.getAttributeValue(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION)); 1195 numNetworkLoggingNotifications = Integer.parseInt( 1196 parser.getAttributeValue(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS)); 1197 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 1198 disabledKeyguardFeatures = Integer.parseInt( 1199 parser.getAttributeValue(null, ATTR_VALUE)); 1200 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 1201 readAttributeValues( 1202 parser, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1203 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 1204 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 1205 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 1206 crossProfileWidgetProviders = new ArrayList<>(); 1207 readAttributeValues(parser, TAG_PROVIDER, crossProfileWidgetProviders); 1208 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 1209 permittedAccessiblityServices = readPackageList(parser, tag); 1210 } else if (TAG_PERMITTED_IMES.equals(tag)) { 1211 permittedInputMethods = readPackageList(parser, tag); 1212 } else if (TAG_PERMITTED_NOTIFICATION_LISTENERS.equals(tag)) { 1213 permittedNotificationListeners = readPackageList(parser, tag); 1214 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 1215 keepUninstalledPackages = readPackageList(parser, tag); 1216 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 1217 userRestrictions = UserRestrictionsUtils.readRestrictions(parser); 1218 } else if (TAG_DEFAULT_ENABLED_USER_RESTRICTIONS.equals(tag)) { 1219 readAttributeValues( 1220 parser, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1221 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 1222 type = parser.next(); 1223 if (type == XmlPullParser.TEXT) { 1224 shortSupportMessage = parser.getText(); 1225 } else { 1226 Log.w(LOG_TAG, "Missing text when loading short support message"); 1227 } 1228 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 1229 type = parser.next(); 1230 if (type == XmlPullParser.TEXT) { 1231 longSupportMessage = parser.getText(); 1232 } else { 1233 Log.w(LOG_TAG, "Missing text when loading long support message"); 1234 } 1235 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1236 Preconditions.checkState(!isParent); 1237 1238 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1239 parentAdmin.readFromXml(parser); 1240 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1241 organizationColor = Integer.parseInt( 1242 parser.getAttributeValue(null, ATTR_VALUE)); 1243 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1244 type = parser.next(); 1245 if (type == XmlPullParser.TEXT) { 1246 organizationName = parser.getText(); 1247 } else { 1248 Log.w(LOG_TAG, "Missing text when loading organization name"); 1249 } 1250 } else { 1251 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1252 XmlUtils.skipCurrentTag(parser); 1253 } 1254 } 1255 } 1256 1257 private List<String> readPackageList(XmlPullParser parser, 1258 String tag) throws XmlPullParserException, IOException { 1259 List<String> result = new ArrayList<String>(); 1260 int outerDepth = parser.getDepth(); 1261 int outerType; 1262 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1263 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1264 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1265 continue; 1266 } 1267 String outerTag = parser.getName(); 1268 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1269 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1270 if (packageName != null) { 1271 result.add(packageName); 1272 } else { 1273 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1274 } 1275 } else { 1276 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1277 } 1278 } 1279 return result; 1280 } 1281 1282 private void readAttributeValues( 1283 XmlPullParser parser, String tag, Collection<String> result) 1284 throws XmlPullParserException, IOException { 1285 result.clear(); 1286 int outerDepthDAM = parser.getDepth(); 1287 int typeDAM; 1288 while ((typeDAM=parser.next()) != END_DOCUMENT 1289 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1290 if (typeDAM == END_TAG || typeDAM == TEXT) { 1291 continue; 1292 } 1293 String tagDAM = parser.getName(); 1294 if (tag.equals(tagDAM)) { 1295 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1296 } else { 1297 Slog.e(LOG_TAG, "Expected tag " + tag + " but found " + tagDAM); 1298 } 1299 } 1300 } 1301 1302 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1303 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1304 int outerDepthDAM = parser.getDepth(); 1305 int typeDAM; 1306 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1307 while ((typeDAM=parser.next()) != END_DOCUMENT 1308 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1309 if (typeDAM == END_TAG || typeDAM == TEXT) { 1310 continue; 1311 } 1312 String tagDAM = parser.getName(); 1313 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1314 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1315 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1316 result.put(component, trustAgentInfo); 1317 } else { 1318 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1319 } 1320 } 1321 return result; 1322 } 1323 1324 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1325 throws XmlPullParserException, IOException { 1326 int outerDepthDAM = parser.getDepth(); 1327 int typeDAM; 1328 TrustAgentInfo result = new TrustAgentInfo(null); 1329 while ((typeDAM=parser.next()) != END_DOCUMENT 1330 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1331 if (typeDAM == END_TAG || typeDAM == TEXT) { 1332 continue; 1333 } 1334 String tagDAM = parser.getName(); 1335 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 1336 result.options = PersistableBundle.restoreFromXml(parser); 1337 } else { 1338 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1339 } 1340 } 1341 return result; 1342 } 1343 1344 boolean hasUserRestrictions() { 1345 return userRestrictions != null && userRestrictions.size() > 0; 1346 } 1347 1348 Bundle ensureUserRestrictions() { 1349 if (userRestrictions == null) { 1350 userRestrictions = new Bundle(); 1351 } 1352 return userRestrictions; 1353 } 1354 1355 void dump(String prefix, PrintWriter pw) { 1356 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1357 pw.print(prefix); pw.print("testOnlyAdmin="); 1358 pw.println(testOnlyAdmin); 1359 pw.print(prefix); pw.println("policies:"); 1360 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1361 if (pols != null) { 1362 for (int i=0; i<pols.size(); i++) { 1363 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1364 } 1365 } 1366 pw.print(prefix); pw.print("passwordQuality=0x"); 1367 pw.println(Integer.toHexString(minimumPasswordMetrics.quality)); 1368 pw.print(prefix); pw.print("minimumPasswordLength="); 1369 pw.println(minimumPasswordMetrics.length); 1370 pw.print(prefix); pw.print("passwordHistoryLength="); 1371 pw.println(passwordHistoryLength); 1372 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1373 pw.println(minimumPasswordMetrics.upperCase); 1374 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1375 pw.println(minimumPasswordMetrics.lowerCase); 1376 pw.print(prefix); pw.print("minimumPasswordLetters="); 1377 pw.println(minimumPasswordMetrics.letters); 1378 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1379 pw.println(minimumPasswordMetrics.numeric); 1380 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1381 pw.println(minimumPasswordMetrics.symbols); 1382 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1383 pw.println(minimumPasswordMetrics.nonLetter); 1384 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1385 pw.println(maximumTimeToUnlock); 1386 pw.print(prefix); pw.print("strongAuthUnlockTimeout="); 1387 pw.println(strongAuthUnlockTimeout); 1388 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1389 pw.println(maximumFailedPasswordsForWipe); 1390 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1391 pw.println(specifiesGlobalProxy); 1392 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1393 pw.println(passwordExpirationTimeout); 1394 pw.print(prefix); pw.print("passwordExpirationDate="); 1395 pw.println(passwordExpirationDate); 1396 if (globalProxySpec != null) { 1397 pw.print(prefix); pw.print("globalProxySpec="); 1398 pw.println(globalProxySpec); 1399 } 1400 if (globalProxyExclusionList != null) { 1401 pw.print(prefix); pw.print("globalProxyEclusionList="); 1402 pw.println(globalProxyExclusionList); 1403 } 1404 pw.print(prefix); pw.print("encryptionRequested="); 1405 pw.println(encryptionRequested); 1406 pw.print(prefix); pw.print("disableCamera="); 1407 pw.println(disableCamera); 1408 pw.print(prefix); pw.print("disableCallerId="); 1409 pw.println(disableCallerId); 1410 pw.print(prefix); pw.print("disableContactsSearch="); 1411 pw.println(disableContactsSearch); 1412 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1413 pw.println(disableBluetoothContactSharing); 1414 pw.print(prefix); pw.print("disableScreenCapture="); 1415 pw.println(disableScreenCapture); 1416 pw.print(prefix); pw.print("requireAutoTime="); 1417 pw.println(requireAutoTime); 1418 pw.print(prefix); pw.print("forceEphemeralUsers="); 1419 pw.println(forceEphemeralUsers); 1420 pw.print(prefix); pw.print("isNetworkLoggingEnabled="); 1421 pw.println(isNetworkLoggingEnabled); 1422 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1423 pw.println(disabledKeyguardFeatures); 1424 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1425 pw.println(crossProfileWidgetProviders); 1426 if (permittedAccessiblityServices != null) { 1427 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1428 pw.println(permittedAccessiblityServices); 1429 } 1430 if (permittedInputMethods != null) { 1431 pw.print(prefix); pw.print("permittedInputMethods="); 1432 pw.println(permittedInputMethods); 1433 } 1434 if (permittedNotificationListeners != null) { 1435 pw.print(prefix); pw.print("permittedNotificationListeners="); 1436 pw.println(permittedNotificationListeners); 1437 } 1438 if (keepUninstalledPackages != null) { 1439 pw.print(prefix); pw.print("keepUninstalledPackages="); 1440 pw.println(keepUninstalledPackages); 1441 } 1442 pw.print(prefix); pw.print("organizationColor="); 1443 pw.println(organizationColor); 1444 if (organizationName != null) { 1445 pw.print(prefix); pw.print("organizationName="); 1446 pw.println(organizationName); 1447 } 1448 pw.print(prefix); pw.println("userRestrictions:"); 1449 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1450 pw.print(prefix); pw.print("defaultEnabledRestrictionsAlreadySet="); 1451 pw.println(defaultEnabledRestrictionsAlreadySet); 1452 pw.print(prefix); pw.print("isParent="); 1453 pw.println(isParent); 1454 if (parentAdmin != null) { 1455 pw.print(prefix); pw.println("parentAdmin:"); 1456 parentAdmin.dump(prefix + " ", pw); 1457 } 1458 } 1459 } 1460 1461 private void handlePackagesChanged(@Nullable String packageName, int userHandle) { 1462 boolean removedAdmin = false; 1463 if (VERBOSE_LOG) { 1464 Slog.d(LOG_TAG, "Handling package changes package " + packageName 1465 + " for user " + userHandle); 1466 } 1467 DevicePolicyData policy = getUserData(userHandle); 1468 synchronized (this) { 1469 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1470 ActiveAdmin aa = policy.mAdminList.get(i); 1471 try { 1472 // If we're checking all packages or if the specific one we're checking matches, 1473 // then check if the package and receiver still exist. 1474 final String adminPackage = aa.info.getPackageName(); 1475 if (packageName == null || packageName.equals(adminPackage)) { 1476 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1477 || mIPackageManager.getReceiverInfo(aa.info.getComponent(), 1478 PackageManager.MATCH_DIRECT_BOOT_AWARE 1479 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 1480 userHandle) == null) { 1481 removedAdmin = true; 1482 policy.mAdminList.remove(i); 1483 policy.mAdminMap.remove(aa.info.getComponent()); 1484 } 1485 } 1486 } catch (RemoteException re) { 1487 // Shouldn't happen. 1488 } 1489 } 1490 if (removedAdmin) { 1491 validatePasswordOwnerLocked(policy); 1492 } 1493 1494 boolean removedDelegate = false; 1495 1496 // Check if a delegate was removed. 1497 for (int i = policy.mDelegationMap.size() - 1; i >= 0; i--) { 1498 final String delegatePackage = policy.mDelegationMap.keyAt(i); 1499 if (isRemovedPackage(packageName, delegatePackage, userHandle)) { 1500 policy.mDelegationMap.removeAt(i); 1501 removedDelegate = true; 1502 } 1503 } 1504 1505 // If it's an owner package, we may need to refresh the bound connection. 1506 final ComponentName owner = getOwnerComponent(userHandle); 1507 if ((packageName != null) && (owner != null) 1508 && (owner.getPackageName().equals(packageName))) { 1509 startOwnerService(userHandle, "package-broadcast"); 1510 } 1511 1512 // Persist updates if the removed package was an admin or delegate. 1513 if (removedAdmin || removedDelegate) { 1514 saveSettingsLocked(policy.mUserHandle); 1515 } 1516 } 1517 if (removedAdmin) { 1518 // The removed admin might have disabled camera, so update user restrictions. 1519 pushUserRestrictions(userHandle); 1520 } 1521 } 1522 1523 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1524 try { 1525 return targetPackage != null 1526 && (changedPackage == null || changedPackage.equals(targetPackage)) 1527 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1528 } catch (RemoteException e) { 1529 // Shouldn't happen 1530 } 1531 1532 return false; 1533 } 1534 1535 /** 1536 * Unit test will subclass it to inject mocks. 1537 */ 1538 @VisibleForTesting 1539 static class Injector { 1540 1541 public final Context mContext; 1542 1543 Injector(Context context) { 1544 mContext = context; 1545 } 1546 1547 Context createContextAsUser(UserHandle user) throws PackageManager.NameNotFoundException { 1548 final String packageName = mContext.getPackageName(); 1549 return mContext.createPackageContextAsUser(packageName, 0, user); 1550 } 1551 1552 Resources getResources() { 1553 return mContext.getResources(); 1554 } 1555 1556 Owners newOwners() { 1557 return new Owners(getUserManager(), getUserManagerInternal(), 1558 getPackageManagerInternal()); 1559 } 1560 1561 UserManager getUserManager() { 1562 return UserManager.get(mContext); 1563 } 1564 1565 UserManagerInternal getUserManagerInternal() { 1566 return LocalServices.getService(UserManagerInternal.class); 1567 } 1568 1569 PackageManagerInternal getPackageManagerInternal() { 1570 return LocalServices.getService(PackageManagerInternal.class); 1571 } 1572 1573 NotificationManager getNotificationManager() { 1574 return mContext.getSystemService(NotificationManager.class); 1575 } 1576 1577 IIpConnectivityMetrics getIIpConnectivityMetrics() { 1578 return (IIpConnectivityMetrics) IIpConnectivityMetrics.Stub.asInterface( 1579 ServiceManager.getService(IpConnectivityLog.SERVICE_NAME)); 1580 } 1581 1582 PackageManager getPackageManager() { 1583 return mContext.getPackageManager(); 1584 } 1585 1586 PowerManagerInternal getPowerManagerInternal() { 1587 return LocalServices.getService(PowerManagerInternal.class); 1588 } 1589 1590 TelephonyManager getTelephonyManager() { 1591 return TelephonyManager.from(mContext); 1592 } 1593 1594 TrustManager getTrustManager() { 1595 return (TrustManager) mContext.getSystemService(Context.TRUST_SERVICE); 1596 } 1597 1598 AlarmManager getAlarmManager() { 1599 return (AlarmManager) mContext.getSystemService(AlarmManager.class); 1600 } 1601 1602 IWindowManager getIWindowManager() { 1603 return IWindowManager.Stub 1604 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1605 } 1606 1607 IActivityManager getIActivityManager() { 1608 return ActivityManager.getService(); 1609 } 1610 1611 IPackageManager getIPackageManager() { 1612 return AppGlobals.getPackageManager(); 1613 } 1614 1615 IBackupManager getIBackupManager() { 1616 return IBackupManager.Stub.asInterface( 1617 ServiceManager.getService(Context.BACKUP_SERVICE)); 1618 } 1619 1620 IAudioService getIAudioService() { 1621 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1622 } 1623 1624 boolean isBuildDebuggable() { 1625 return Build.IS_DEBUGGABLE; 1626 } 1627 1628 LockPatternUtils newLockPatternUtils() { 1629 return new LockPatternUtils(mContext); 1630 } 1631 1632 boolean storageManagerIsFileBasedEncryptionEnabled() { 1633 return StorageManager.isFileEncryptedNativeOnly(); 1634 } 1635 1636 boolean storageManagerIsNonDefaultBlockEncrypted() { 1637 long identity = Binder.clearCallingIdentity(); 1638 try { 1639 return StorageManager.isNonDefaultBlockEncrypted(); 1640 } finally { 1641 Binder.restoreCallingIdentity(identity); 1642 } 1643 } 1644 1645 boolean storageManagerIsEncrypted() { 1646 return StorageManager.isEncrypted(); 1647 } 1648 1649 boolean storageManagerIsEncryptable() { 1650 return StorageManager.isEncryptable(); 1651 } 1652 1653 Looper getMyLooper() { 1654 return Looper.myLooper(); 1655 } 1656 1657 WifiManager getWifiManager() { 1658 return mContext.getSystemService(WifiManager.class); 1659 } 1660 1661 long binderClearCallingIdentity() { 1662 return Binder.clearCallingIdentity(); 1663 } 1664 1665 void binderRestoreCallingIdentity(long token) { 1666 Binder.restoreCallingIdentity(token); 1667 } 1668 1669 int binderGetCallingUid() { 1670 return Binder.getCallingUid(); 1671 } 1672 1673 int binderGetCallingPid() { 1674 return Binder.getCallingPid(); 1675 } 1676 1677 UserHandle binderGetCallingUserHandle() { 1678 return Binder.getCallingUserHandle(); 1679 } 1680 1681 boolean binderIsCallingUidMyUid() { 1682 return getCallingUid() == Process.myUid(); 1683 } 1684 1685 final int userHandleGetCallingUserId() { 1686 return UserHandle.getUserId(binderGetCallingUid()); 1687 } 1688 1689 File environmentGetUserSystemDirectory(int userId) { 1690 return Environment.getUserSystemDirectory(userId); 1691 } 1692 1693 void powerManagerGoToSleep(long time, int reason, int flags) { 1694 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1695 } 1696 1697 void powerManagerReboot(String reason) { 1698 mContext.getSystemService(PowerManager.class).reboot(reason); 1699 } 1700 1701 void recoverySystemRebootWipeUserData(boolean shutdown, String reason, boolean force, 1702 boolean wipeEuicc) throws IOException { 1703 RecoverySystem.rebootWipeUserData(mContext, shutdown, reason, force, wipeEuicc); 1704 } 1705 1706 boolean systemPropertiesGetBoolean(String key, boolean def) { 1707 return SystemProperties.getBoolean(key, def); 1708 } 1709 1710 long systemPropertiesGetLong(String key, long def) { 1711 return SystemProperties.getLong(key, def); 1712 } 1713 1714 String systemPropertiesGet(String key, String def) { 1715 return SystemProperties.get(key, def); 1716 } 1717 1718 String systemPropertiesGet(String key) { 1719 return SystemProperties.get(key); 1720 } 1721 1722 void systemPropertiesSet(String key, String value) { 1723 SystemProperties.set(key, value); 1724 } 1725 1726 boolean userManagerIsSplitSystemUser() { 1727 return UserManager.isSplitSystemUser(); 1728 } 1729 1730 String getDevicePolicyFilePathForSystemUser() { 1731 return "/data/system/"; 1732 } 1733 1734 PendingIntent pendingIntentGetActivityAsUser(Context context, int requestCode, 1735 @NonNull Intent intent, int flags, Bundle options, UserHandle user) { 1736 return PendingIntent.getActivityAsUser( 1737 context, requestCode, intent, flags, options, user); 1738 } 1739 1740 void registerContentObserver(Uri uri, boolean notifyForDescendents, 1741 ContentObserver observer, int userHandle) { 1742 mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents, 1743 observer, userHandle); 1744 } 1745 1746 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1747 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1748 name, def, userHandle); 1749 } 1750 1751 String settingsSecureGetStringForUser(String name, int userHandle) { 1752 return Settings.Secure.getStringForUser(mContext.getContentResolver(), name, 1753 userHandle); 1754 } 1755 1756 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1757 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1758 name, value, userHandle); 1759 } 1760 1761 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1762 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1763 name, value, userHandle); 1764 } 1765 1766 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1767 Settings.Global.putStringForUser(mContext.getContentResolver(), 1768 name, value, userHandle); 1769 } 1770 1771 void settingsSecurePutInt(String name, int value) { 1772 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1773 } 1774 1775 int settingsGlobalGetInt(String name, int def) { 1776 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1777 } 1778 1779 String settingsGlobalGetString(String name) { 1780 return Settings.Global.getString(mContext.getContentResolver(), name); 1781 } 1782 1783 void settingsGlobalPutInt(String name, int value) { 1784 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1785 } 1786 1787 void settingsSecurePutString(String name, String value) { 1788 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1789 } 1790 1791 void settingsGlobalPutString(String name, String value) { 1792 Settings.Global.putString(mContext.getContentResolver(), name, value); 1793 } 1794 1795 void securityLogSetLoggingEnabledProperty(boolean enabled) { 1796 SecurityLog.setLoggingEnabledProperty(enabled); 1797 } 1798 1799 boolean securityLogGetLoggingEnabledProperty() { 1800 return SecurityLog.getLoggingEnabledProperty(); 1801 } 1802 1803 boolean securityLogIsLoggingEnabled() { 1804 return SecurityLog.isLoggingEnabled(); 1805 } 1806 1807 KeyChainConnection keyChainBindAsUser(UserHandle user) throws InterruptedException { 1808 return KeyChain.bindAsUser(mContext, user); 1809 } 1810 } 1811 1812 /** 1813 * Instantiates the service. 1814 */ 1815 public DevicePolicyManagerService(Context context) { 1816 this(new Injector(context)); 1817 } 1818 1819 @VisibleForTesting 1820 DevicePolicyManagerService(Injector injector) { 1821 mInjector = injector; 1822 mContext = Preconditions.checkNotNull(injector.mContext); 1823 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1824 mConstants = DevicePolicyConstants.loadFromString( 1825 mInjector.settingsGlobalGetString(Global.DEVICE_POLICY_CONSTANTS)); 1826 1827 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1828 1829 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1830 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1831 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1832 mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager()); 1833 1834 mLocalService = new LocalService(); 1835 mLockPatternUtils = injector.newLockPatternUtils(); 1836 1837 // TODO: why does SecurityLogMonitor need to be created even when mHasFeature == false? 1838 mSecurityLogMonitor = new SecurityLogMonitor(this); 1839 1840 mHasFeature = mInjector.getPackageManager() 1841 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1842 mIsWatch = mInjector.getPackageManager() 1843 .hasSystemFeature(PackageManager.FEATURE_WATCH); 1844 mBackgroundHandler = BackgroundThread.getHandler(); 1845 1846 // Needed when mHasFeature == false, because it controls the certificate warning text. 1847 mCertificateMonitor = new CertificateMonitor(this, mInjector, mBackgroundHandler); 1848 1849 mDeviceAdminServiceController = new DeviceAdminServiceController(this, mConstants); 1850 1851 if (!mHasFeature) { 1852 // Skip the rest of the initialization 1853 return; 1854 } 1855 1856 IntentFilter filter = new IntentFilter(); 1857 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1858 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1859 filter.addAction(Intent.ACTION_USER_ADDED); 1860 filter.addAction(Intent.ACTION_USER_REMOVED); 1861 filter.addAction(Intent.ACTION_USER_STARTED); 1862 filter.addAction(Intent.ACTION_USER_UNLOCKED); 1863 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1864 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1865 filter = new IntentFilter(); 1866 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1867 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1868 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1869 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1870 filter.addDataScheme("package"); 1871 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1872 filter = new IntentFilter(); 1873 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1874 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1875 1876 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1877 1878 mSetupContentObserver = new SetupContentObserver(mHandler); 1879 } 1880 1881 /** 1882 * Creates and loads the policy data from xml. 1883 * @param userHandle the user for whom to load the policy data 1884 * @return 1885 */ 1886 @NonNull 1887 DevicePolicyData getUserData(int userHandle) { 1888 synchronized (this) { 1889 DevicePolicyData policy = mUserData.get(userHandle); 1890 if (policy == null) { 1891 policy = new DevicePolicyData(userHandle); 1892 mUserData.append(userHandle, policy); 1893 loadSettingsLocked(policy, userHandle); 1894 } 1895 return policy; 1896 } 1897 } 1898 1899 /** 1900 * Creates and loads the policy data from xml for data that is shared between 1901 * various profiles of a user. In contrast to {@link #getUserData(int)} 1902 * it allows access to data of users other than the calling user. 1903 * 1904 * This function should only be used for shared data, e.g. everything regarding 1905 * passwords and should be removed once multiple screen locks are present. 1906 * @param userHandle the user for whom to load the policy data 1907 * @return 1908 */ 1909 DevicePolicyData getUserDataUnchecked(int userHandle) { 1910 long ident = mInjector.binderClearCallingIdentity(); 1911 try { 1912 return getUserData(userHandle); 1913 } finally { 1914 mInjector.binderRestoreCallingIdentity(ident); 1915 } 1916 } 1917 1918 void removeUserData(int userHandle) { 1919 synchronized (this) { 1920 if (userHandle == UserHandle.USER_SYSTEM) { 1921 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1922 return; 1923 } 1924 mOwners.removeProfileOwner(userHandle); 1925 mOwners.writeProfileOwner(userHandle); 1926 1927 DevicePolicyData policy = mUserData.get(userHandle); 1928 if (policy != null) { 1929 mUserData.remove(userHandle); 1930 } 1931 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1932 DEVICE_POLICIES_XML); 1933 policyFile.delete(); 1934 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1935 } 1936 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1937 } 1938 1939 void loadOwners() { 1940 synchronized (this) { 1941 mOwners.load(); 1942 setDeviceOwnerSystemPropertyLocked(); 1943 findOwnerComponentIfNecessaryLocked(); 1944 migrateUserRestrictionsIfNecessaryLocked(); 1945 maybeSetDefaultDeviceOwnerUserRestrictionsLocked(); 1946 1947 // TODO PO may not have a class name either due to b/17652534. Address that too. 1948 1949 updateDeviceOwnerLocked(); 1950 } 1951 } 1952 1953 /** Apply default restrictions that haven't been applied to device owners yet. */ 1954 private void maybeSetDefaultDeviceOwnerUserRestrictionsLocked() { 1955 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 1956 if (deviceOwner != null) { 1957 maybeSetDefaultRestrictionsForAdminLocked(mOwners.getDeviceOwnerUserId(), 1958 deviceOwner, UserRestrictionsUtils.getDefaultEnabledForDeviceOwner()); 1959 } 1960 } 1961 1962 /** Apply default restrictions that haven't been applied to profile owners yet. */ 1963 private void maybeSetDefaultProfileOwnerUserRestrictions() { 1964 synchronized (this) { 1965 for (final int userId : mOwners.getProfileOwnerKeys()) { 1966 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 1967 // The following restrictions used to be applied to managed profiles by different 1968 // means (via Settings or by disabling components). Now they are proper user 1969 // restrictions so we apply them to managed profile owners. Non-managed secondary 1970 // users didn't have those restrictions so we skip them to keep existing behavior. 1971 if (profileOwner == null || !mUserManager.isManagedProfile(userId)) { 1972 continue; 1973 } 1974 maybeSetDefaultRestrictionsForAdminLocked(userId, profileOwner, 1975 UserRestrictionsUtils.getDefaultEnabledForManagedProfiles()); 1976 ensureUnknownSourcesRestrictionForProfileOwnerLocked( 1977 userId, profileOwner, false /* newOwner */); 1978 } 1979 } 1980 } 1981 1982 /** 1983 * Checks whether {@link UserManager#DISALLOW_INSTALL_UNKNOWN_SOURCES} should be added to the 1984 * set of restrictions for this profile owner. 1985 */ 1986 private void ensureUnknownSourcesRestrictionForProfileOwnerLocked(int userId, 1987 ActiveAdmin profileOwner, boolean newOwner) { 1988 if (newOwner || mInjector.settingsSecureGetIntForUser( 1989 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId) != 0) { 1990 profileOwner.ensureUserRestrictions().putBoolean( 1991 UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 1992 saveUserRestrictionsLocked(userId); 1993 mInjector.settingsSecurePutIntForUser( 1994 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId); 1995 } 1996 } 1997 1998 /** 1999 * Apply default restrictions that haven't been applied to a given admin yet. 2000 */ 2001 private void maybeSetDefaultRestrictionsForAdminLocked( 2002 int userId, ActiveAdmin admin, Set<String> defaultRestrictions) { 2003 if (defaultRestrictions.equals(admin.defaultEnabledRestrictionsAlreadySet)) { 2004 return; // The same set of default restrictions has been already applied. 2005 } 2006 Slog.i(LOG_TAG, "New user restrictions need to be set by default for user " + userId); 2007 2008 if (VERBOSE_LOG) { 2009 Slog.d(LOG_TAG,"Default enabled restrictions: " 2010 + defaultRestrictions 2011 + ". Restrictions already enabled: " 2012 + admin.defaultEnabledRestrictionsAlreadySet); 2013 } 2014 2015 final Set<String> restrictionsToSet = new ArraySet<>(defaultRestrictions); 2016 restrictionsToSet.removeAll(admin.defaultEnabledRestrictionsAlreadySet); 2017 if (!restrictionsToSet.isEmpty()) { 2018 for (final String restriction : restrictionsToSet) { 2019 admin.ensureUserRestrictions().putBoolean(restriction, true); 2020 } 2021 admin.defaultEnabledRestrictionsAlreadySet.addAll(restrictionsToSet); 2022 Slog.i(LOG_TAG, "Enabled the following restrictions by default: " + restrictionsToSet); 2023 saveUserRestrictionsLocked(userId); 2024 } 2025 } 2026 2027 private void setDeviceOwnerSystemPropertyLocked() { 2028 final boolean deviceProvisioned = 2029 mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0; 2030 final boolean hasDeviceOwner = mOwners.hasDeviceOwner(); 2031 // If the device is not provisioned and there is currently no device owner, do not set the 2032 // read-only system property yet, since Device owner may still be provisioned. 2033 if (!hasDeviceOwner && !deviceProvisioned) { 2034 return; 2035 } 2036 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 2037 // always false at this point. 2038 if (StorageManager.inCryptKeeperBounce()) { 2039 return; 2040 } 2041 2042 if (!mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT, "").isEmpty()) { 2043 Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 2044 } else { 2045 final String value = Boolean.toString(hasDeviceOwner); 2046 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, value); 2047 Slog.i(LOG_TAG, "Set ro.device_owner property to " + value); 2048 2049 if (hasDeviceOwner && mInjector.securityLogGetLoggingEnabledProperty()) { 2050 mSecurityLogMonitor.start(); 2051 maybePauseDeviceWideLoggingLocked(); 2052 } 2053 } 2054 } 2055 2056 private void findOwnerComponentIfNecessaryLocked() { 2057 if (!mOwners.hasDeviceOwner()) { 2058 return; 2059 } 2060 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 2061 2062 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 2063 return; // Already a full component name. 2064 } 2065 2066 final ComponentName doComponent = findAdminComponentWithPackageLocked( 2067 doComponentName.getPackageName(), 2068 mOwners.getDeviceOwnerUserId()); 2069 if (doComponent == null) { 2070 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 2071 } else { 2072 mOwners.setDeviceOwnerWithRestrictionsMigrated( 2073 doComponent, 2074 mOwners.getDeviceOwnerName(), 2075 mOwners.getDeviceOwnerUserId(), 2076 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 2077 mOwners.writeDeviceOwner(); 2078 if (VERBOSE_LOG) { 2079 Log.v(LOG_TAG, "Device owner component filled in"); 2080 } 2081 } 2082 } 2083 2084 /** 2085 * We didn't use to persist user restrictions for each owners but only persisted in user 2086 * manager. 2087 */ 2088 private void migrateUserRestrictionsIfNecessaryLocked() { 2089 boolean migrated = false; 2090 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 2091 // except for the "system controlled" ones. 2092 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 2093 if (VERBOSE_LOG) { 2094 Log.v(LOG_TAG, "Migrating DO user restrictions"); 2095 } 2096 migrated = true; 2097 2098 // Migrate user 0 restrictions to DO. 2099 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 2100 2101 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 2102 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 2103 2104 // Push DO user restrictions to user manager. 2105 pushUserRestrictions(UserHandle.USER_SYSTEM); 2106 2107 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 2108 } 2109 2110 // Migrate for POs. 2111 2112 // The following restrictions can be set on secondary users by the device owner, so we 2113 // assume they're not from the PO. 2114 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 2115 UserManager.DISALLOW_OUTGOING_CALLS, 2116 UserManager.DISALLOW_SMS); 2117 2118 for (UserInfo ui : mUserManager.getUsers()) { 2119 final int userId = ui.id; 2120 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 2121 if (VERBOSE_LOG) { 2122 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 2123 } 2124 migrated = true; 2125 2126 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 2127 2128 final Set<String> exceptionList = 2129 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 2130 2131 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 2132 exceptionList, /* isDeviceOwner =*/ false); 2133 2134 // Note if a secondary user has no PO but has a DA that disables camera, we 2135 // don't get here and won't push the camera user restriction to UserManager 2136 // here. That's okay because we'll push user restrictions anyway when a user 2137 // starts. But we still do it because we want to let user manager persist 2138 // upon migration. 2139 pushUserRestrictions(userId); 2140 2141 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 2142 } 2143 } 2144 if (VERBOSE_LOG && migrated) { 2145 Log.v(LOG_TAG, "User restrictions migrated."); 2146 } 2147 } 2148 2149 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 2150 Set<String> exceptionList, boolean isDeviceOwner) { 2151 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 2152 user.getIdentifier()); 2153 2154 final Bundle newBaseRestrictions = new Bundle(); 2155 final Bundle newOwnerRestrictions = new Bundle(); 2156 2157 for (String key : origRestrictions.keySet()) { 2158 if (!origRestrictions.getBoolean(key)) { 2159 continue; 2160 } 2161 final boolean canOwnerChange = isDeviceOwner 2162 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 2163 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 2164 2165 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 2166 newBaseRestrictions.putBoolean(key, true); 2167 } else { 2168 newOwnerRestrictions.putBoolean(key, true); 2169 } 2170 } 2171 2172 if (VERBOSE_LOG) { 2173 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 2174 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 2175 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 2176 } 2177 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 2178 newBaseRestrictions); 2179 2180 if (admin != null) { 2181 admin.ensureUserRestrictions().clear(); 2182 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 2183 } else { 2184 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 2185 } 2186 saveSettingsLocked(user.getIdentifier()); 2187 } 2188 2189 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 2190 final DevicePolicyData policy = getUserData(userId); 2191 final int n = policy.mAdminList.size(); 2192 ComponentName found = null; 2193 int nFound = 0; 2194 for (int i = 0; i < n; i++) { 2195 final ActiveAdmin admin = policy.mAdminList.get(i); 2196 if (packageName.equals(admin.info.getPackageName())) { 2197 // Found! 2198 if (nFound == 0) { 2199 found = admin.info.getComponent(); 2200 } 2201 nFound++; 2202 } 2203 } 2204 if (nFound > 1) { 2205 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 2206 } 2207 return found; 2208 } 2209 2210 /** 2211 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 2212 * reminders. Clears alarm if no expirations are configured. 2213 */ 2214 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 2215 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 2216 final long now = System.currentTimeMillis(); 2217 final long timeToExpire = expiration - now; 2218 final long alarmTime; 2219 if (expiration == 0) { 2220 // No expirations are currently configured: Cancel alarm. 2221 alarmTime = 0; 2222 } else if (timeToExpire <= 0) { 2223 // The password has already expired: Repeat every 24 hours. 2224 alarmTime = now + MS_PER_DAY; 2225 } else { 2226 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 2227 // the expiration time. 2228 long alarmInterval = timeToExpire % MS_PER_DAY; 2229 if (alarmInterval == 0) { 2230 alarmInterval = MS_PER_DAY; 2231 } 2232 alarmTime = now + alarmInterval; 2233 } 2234 2235 long token = mInjector.binderClearCallingIdentity(); 2236 try { 2237 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 2238 AlarmManager am = mInjector.getAlarmManager(); 2239 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 2240 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 2241 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 2242 UserHandle.of(affectedUserHandle)); 2243 am.cancel(pi); 2244 if (alarmTime != 0) { 2245 am.set(AlarmManager.RTC, alarmTime, pi); 2246 } 2247 } finally { 2248 mInjector.binderRestoreCallingIdentity(token); 2249 } 2250 } 2251 2252 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 2253 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 2254 if (admin != null 2255 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 2256 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 2257 return admin; 2258 } 2259 return null; 2260 } 2261 2262 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 2263 if (parent) { 2264 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 2265 } 2266 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2267 if (admin != null && parent) { 2268 admin = admin.getParentActiveAdmin(); 2269 } 2270 return admin; 2271 } 2272 2273 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 2274 throws SecurityException { 2275 final int callingUid = mInjector.binderGetCallingUid(); 2276 2277 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 2278 if (result != null) { 2279 return result; 2280 } 2281 2282 if (who != null) { 2283 final int userId = UserHandle.getUserId(callingUid); 2284 final DevicePolicyData policy = getUserData(userId); 2285 ActiveAdmin admin = policy.mAdminMap.get(who); 2286 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2287 throw new SecurityException("Admin " + admin.info.getComponent() 2288 + " does not own the device"); 2289 } 2290 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2291 throw new SecurityException("Admin " + admin.info.getComponent() 2292 + " does not own the profile"); 2293 } 2294 throw new SecurityException("Admin " + admin.info.getComponent() 2295 + " did not specify uses-policy for: " 2296 + admin.info.getTagForPolicy(reqPolicy)); 2297 } else { 2298 throw new SecurityException("No active admin owned by uid " 2299 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 2300 } 2301 } 2302 2303 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 2304 throws SecurityException { 2305 if (parent) { 2306 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 2307 "call APIs on the parent profile"); 2308 } 2309 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 2310 return parent ? admin.getParentActiveAdmin() : admin; 2311 } 2312 /** 2313 * Find the admin for the component and userId bit of the uid, then check 2314 * the admin's uid matches the uid. 2315 */ 2316 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 2317 final int userId = UserHandle.getUserId(uid); 2318 final DevicePolicyData policy = getUserData(userId); 2319 ActiveAdmin admin = policy.mAdminMap.get(who); 2320 if (admin == null) { 2321 throw new SecurityException("No active admin " + who); 2322 } 2323 if (admin.getUid() != uid) { 2324 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2325 } 2326 return admin; 2327 } 2328 2329 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 2330 int uid) { 2331 // Try to find an admin which can use reqPolicy 2332 final int userId = UserHandle.getUserId(uid); 2333 final DevicePolicyData policy = getUserData(userId); 2334 if (who != null) { 2335 ActiveAdmin admin = policy.mAdminMap.get(who); 2336 if (admin == null) { 2337 throw new SecurityException("No active admin " + who); 2338 } 2339 if (admin.getUid() != uid) { 2340 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2341 } 2342 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 2343 return admin; 2344 } 2345 } else { 2346 for (ActiveAdmin admin : policy.mAdminList) { 2347 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 2348 userId)) { 2349 return admin; 2350 } 2351 } 2352 } 2353 2354 return null; 2355 } 2356 2357 @VisibleForTesting 2358 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 2359 int userId) { 2360 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 2361 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 2362 2363 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2364 return ownsDevice; 2365 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2366 // DO always has the PO power. 2367 return ownsDevice || ownsProfile; 2368 } else { 2369 return admin.info.usesPolicy(reqPolicy); 2370 } 2371 } 2372 2373 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 2374 sendAdminCommandLocked(admin, action, null); 2375 } 2376 2377 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 2378 sendAdminCommandLocked(admin, action, null, result); 2379 } 2380 2381 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2382 BroadcastReceiver result) { 2383 sendAdminCommandLocked(admin, action, adminExtras, result, false); 2384 } 2385 2386 /** 2387 * Send an update to one specific admin, get notified when that admin returns a result. 2388 * 2389 * @return whether the broadcast was successfully sent 2390 */ 2391 boolean sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2392 BroadcastReceiver result, boolean inForeground) { 2393 Intent intent = new Intent(action); 2394 intent.setComponent(admin.info.getComponent()); 2395 if (UserManager.isDeviceInDemoMode(mContext)) { 2396 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 2397 } 2398 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 2399 intent.putExtra("expiration", admin.passwordExpirationDate); 2400 } 2401 if (inForeground) { 2402 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 2403 } 2404 if (adminExtras != null) { 2405 intent.putExtras(adminExtras); 2406 } 2407 if (mInjector.getPackageManager().queryBroadcastReceiversAsUser( 2408 intent, 2409 PackageManager.MATCH_DEBUG_TRIAGED_MISSING, 2410 admin.getUserHandle()).isEmpty()) { 2411 return false; 2412 } 2413 if (result != null) { 2414 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 2415 null, result, mHandler, Activity.RESULT_OK, null, null); 2416 } else { 2417 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 2418 } 2419 return true; 2420 } 2421 2422 /** 2423 * Send an update to all admins of a user that enforce a specified policy. 2424 */ 2425 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle, Bundle adminExtras) { 2426 final DevicePolicyData policy = getUserData(userHandle); 2427 final int count = policy.mAdminList.size(); 2428 for (int i = 0; i < count; i++) { 2429 final ActiveAdmin admin = policy.mAdminList.get(i); 2430 if (admin.info.usesPolicy(reqPolicy)) { 2431 sendAdminCommandLocked(admin, action, adminExtras, null); 2432 } 2433 } 2434 } 2435 2436 /** 2437 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2438 * enforce a specified policy. 2439 */ 2440 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2441 int userHandle, Bundle adminExtras) { 2442 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 2443 for (int profileId : profileIds) { 2444 sendAdminCommandLocked(action, reqPolicy, profileId, adminExtras); 2445 } 2446 } 2447 2448 /** 2449 * Sends a broadcast to each profile that share the password unlock with the given user id. 2450 */ 2451 private void sendAdminCommandForLockscreenPoliciesLocked( 2452 String action, int reqPolicy, int userHandle) { 2453 final Bundle extras = new Bundle(); 2454 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 2455 if (isSeparateProfileChallengeEnabled(userHandle)) { 2456 sendAdminCommandLocked(action, reqPolicy, userHandle, extras); 2457 } else { 2458 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle, extras); 2459 } 2460 } 2461 2462 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2463 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2464 DevicePolicyData policy = getUserData(userHandle); 2465 if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) { 2466 policy.mRemovingAdmins.add(adminReceiver); 2467 sendAdminCommandLocked(admin, 2468 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2469 new BroadcastReceiver() { 2470 @Override 2471 public void onReceive(Context context, Intent intent) { 2472 removeAdminArtifacts(adminReceiver, userHandle); 2473 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2474 } 2475 }); 2476 } 2477 } 2478 2479 2480 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2481 boolean throwForMissiongPermission) { 2482 if (!mHasFeature) { 2483 return null; 2484 } 2485 enforceFullCrossUsersPermission(userHandle); 2486 ActivityInfo ai = null; 2487 try { 2488 ai = mIPackageManager.getReceiverInfo(adminName, 2489 PackageManager.GET_META_DATA | 2490 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS | 2491 PackageManager.MATCH_DIRECT_BOOT_AWARE | 2492 PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle); 2493 } catch (RemoteException e) { 2494 // shouldn't happen. 2495 } 2496 if (ai == null) { 2497 throw new IllegalArgumentException("Unknown admin: " + adminName); 2498 } 2499 2500 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2501 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2502 + permission.BIND_DEVICE_ADMIN; 2503 Slog.w(LOG_TAG, message); 2504 if (throwForMissiongPermission && 2505 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2506 throw new IllegalArgumentException(message); 2507 } 2508 } 2509 2510 try { 2511 return new DeviceAdminInfo(mContext, ai); 2512 } catch (XmlPullParserException | IOException e) { 2513 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2514 e); 2515 return null; 2516 } 2517 } 2518 2519 private JournaledFile makeJournaledFile(int userHandle) { 2520 final String base = userHandle == UserHandle.USER_SYSTEM 2521 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 2522 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2523 DEVICE_POLICIES_XML).getAbsolutePath(); 2524 if (VERBOSE_LOG) { 2525 Log.v(LOG_TAG, "Opening " + base); 2526 } 2527 return new JournaledFile(new File(base), new File(base + ".tmp")); 2528 } 2529 2530 private void saveSettingsLocked(int userHandle) { 2531 DevicePolicyData policy = getUserData(userHandle); 2532 JournaledFile journal = makeJournaledFile(userHandle); 2533 FileOutputStream stream = null; 2534 try { 2535 stream = new FileOutputStream(journal.chooseForWrite(), false); 2536 XmlSerializer out = new FastXmlSerializer(); 2537 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2538 out.startDocument(null, true); 2539 2540 out.startTag(null, "policies"); 2541 if (policy.mRestrictionsProvider != null) { 2542 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2543 policy.mRestrictionsProvider.flattenToString()); 2544 } 2545 if (policy.mUserSetupComplete) { 2546 out.attribute(null, ATTR_SETUP_COMPLETE, 2547 Boolean.toString(true)); 2548 } 2549 if (policy.mPaired) { 2550 out.attribute(null, ATTR_DEVICE_PAIRED, 2551 Boolean.toString(true)); 2552 } 2553 if (policy.mDeviceProvisioningConfigApplied) { 2554 out.attribute(null, ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED, 2555 Boolean.toString(true)); 2556 } 2557 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2558 out.attribute(null, ATTR_PROVISIONING_STATE, 2559 Integer.toString(policy.mUserProvisioningState)); 2560 } 2561 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2562 out.attribute(null, ATTR_PERMISSION_POLICY, 2563 Integer.toString(policy.mPermissionPolicy)); 2564 } 2565 2566 // Serialize delegations. 2567 for (int i = 0; i < policy.mDelegationMap.size(); ++i) { 2568 final String delegatePackage = policy.mDelegationMap.keyAt(i); 2569 final List<String> scopes = policy.mDelegationMap.valueAt(i); 2570 2571 // Every "delegation" tag serializes the information of one delegate-scope pair. 2572 for (String scope : scopes) { 2573 out.startTag(null, "delegation"); 2574 out.attribute(null, "delegatePackage", delegatePackage); 2575 out.attribute(null, "scope", scope); 2576 out.endTag(null, "delegation"); 2577 } 2578 } 2579 2580 final int N = policy.mAdminList.size(); 2581 for (int i=0; i<N; i++) { 2582 ActiveAdmin ap = policy.mAdminList.get(i); 2583 if (ap != null) { 2584 out.startTag(null, "admin"); 2585 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2586 ap.writeToXml(out); 2587 out.endTag(null, "admin"); 2588 } 2589 } 2590 2591 if (policy.mPasswordOwner >= 0) { 2592 out.startTag(null, "password-owner"); 2593 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2594 out.endTag(null, "password-owner"); 2595 } 2596 2597 if (policy.mFailedPasswordAttempts != 0) { 2598 out.startTag(null, "failed-password-attempts"); 2599 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2600 out.endTag(null, "failed-password-attempts"); 2601 } 2602 2603 // For FDE devices only, we save this flag so we can report on password sufficiency 2604 // before the user enters their password for the first time after a reboot. For 2605 // security reasons, we don't want to store the full set of active password metrics. 2606 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 2607 out.startTag(null, TAG_PASSWORD_VALIDITY); 2608 out.attribute(null, ATTR_VALUE, 2609 Boolean.toString(policy.mPasswordValidAtLastCheckpoint)); 2610 out.endTag(null, TAG_PASSWORD_VALIDITY); 2611 } 2612 2613 for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) { 2614 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2615 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i)); 2616 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2617 } 2618 2619 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2620 String component = policy.mLockTaskPackages.get(i); 2621 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2622 out.attribute(null, "name", component); 2623 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2624 } 2625 2626 if (policy.mStatusBarDisabled) { 2627 out.startTag(null, TAG_STATUS_BAR); 2628 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2629 out.endTag(null, TAG_STATUS_BAR); 2630 } 2631 2632 if (policy.doNotAskCredentialsOnBoot) { 2633 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2634 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2635 } 2636 2637 for (String id : policy.mAffiliationIds) { 2638 out.startTag(null, TAG_AFFILIATION_ID); 2639 out.attribute(null, ATTR_ID, id); 2640 out.endTag(null, TAG_AFFILIATION_ID); 2641 } 2642 2643 if (policy.mLastSecurityLogRetrievalTime >= 0) { 2644 out.startTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2645 out.attribute(null, ATTR_VALUE, 2646 Long.toString(policy.mLastSecurityLogRetrievalTime)); 2647 out.endTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2648 } 2649 2650 if (policy.mLastBugReportRequestTime >= 0) { 2651 out.startTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2652 out.attribute(null, ATTR_VALUE, 2653 Long.toString(policy.mLastBugReportRequestTime)); 2654 out.endTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2655 } 2656 2657 if (policy.mLastNetworkLogsRetrievalTime >= 0) { 2658 out.startTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2659 out.attribute(null, ATTR_VALUE, 2660 Long.toString(policy.mLastNetworkLogsRetrievalTime)); 2661 out.endTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2662 } 2663 2664 if (policy.mAdminBroadcastPending) { 2665 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2666 out.attribute(null, ATTR_VALUE, 2667 Boolean.toString(policy.mAdminBroadcastPending)); 2668 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2669 } 2670 2671 if (policy.mInitBundle != null) { 2672 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 2673 policy.mInitBundle.saveToXml(out); 2674 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 2675 } 2676 2677 if (policy.mPasswordTokenHandle != 0) { 2678 out.startTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2679 out.attribute(null, ATTR_VALUE, 2680 Long.toString(policy.mPasswordTokenHandle)); 2681 out.endTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2682 } 2683 2684 if (policy.mCurrentInputMethodSet) { 2685 out.startTag(null, TAG_CURRENT_INPUT_METHOD_SET); 2686 out.endTag(null, TAG_CURRENT_INPUT_METHOD_SET); 2687 } 2688 2689 for (final String cert : policy.mOwnerInstalledCaCerts) { 2690 out.startTag(null, TAG_OWNER_INSTALLED_CA_CERT); 2691 out.attribute(null, ATTR_ALIAS, cert); 2692 out.endTag(null, TAG_OWNER_INSTALLED_CA_CERT); 2693 } 2694 2695 out.endTag(null, "policies"); 2696 2697 out.endDocument(); 2698 stream.flush(); 2699 FileUtils.sync(stream); 2700 stream.close(); 2701 journal.commit(); 2702 sendChangedNotification(userHandle); 2703 } catch (XmlPullParserException | IOException e) { 2704 Slog.w(LOG_TAG, "failed writing file", e); 2705 try { 2706 if (stream != null) { 2707 stream.close(); 2708 } 2709 } catch (IOException ex) { 2710 // Ignore 2711 } 2712 journal.rollback(); 2713 } 2714 } 2715 2716 private void sendChangedNotification(int userHandle) { 2717 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 2718 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2719 long ident = mInjector.binderClearCallingIdentity(); 2720 try { 2721 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 2722 } finally { 2723 mInjector.binderRestoreCallingIdentity(ident); 2724 } 2725 } 2726 2727 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 2728 JournaledFile journal = makeJournaledFile(userHandle); 2729 FileInputStream stream = null; 2730 File file = journal.chooseForRead(); 2731 boolean needsRewrite = false; 2732 try { 2733 stream = new FileInputStream(file); 2734 XmlPullParser parser = Xml.newPullParser(); 2735 parser.setInput(stream, StandardCharsets.UTF_8.name()); 2736 2737 int type; 2738 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2739 && type != XmlPullParser.START_TAG) { 2740 } 2741 String tag = parser.getName(); 2742 if (!"policies".equals(tag)) { 2743 throw new XmlPullParserException( 2744 "Settings do not start with policies tag: found " + tag); 2745 } 2746 2747 // Extract the permission provider component name if available 2748 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 2749 if (permissionProvider != null) { 2750 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 2751 } 2752 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 2753 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 2754 policy.mUserSetupComplete = true; 2755 } 2756 String paired = parser.getAttributeValue(null, ATTR_DEVICE_PAIRED); 2757 if (paired != null && Boolean.toString(true).equals(paired)) { 2758 policy.mPaired = true; 2759 } 2760 String deviceProvisioningConfigApplied = parser.getAttributeValue(null, 2761 ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED); 2762 if (deviceProvisioningConfigApplied != null 2763 && Boolean.toString(true).equals(deviceProvisioningConfigApplied)) { 2764 policy.mDeviceProvisioningConfigApplied = true; 2765 } 2766 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 2767 if (!TextUtils.isEmpty(provisioningState)) { 2768 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 2769 } 2770 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 2771 if (!TextUtils.isEmpty(permissionPolicy)) { 2772 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 2773 } 2774 // Check for delegation compatibility with pre-O. 2775 // TODO(edmanp) remove in P. 2776 { 2777 final String certDelegate = parser.getAttributeValue(null, 2778 ATTR_DELEGATED_CERT_INSTALLER); 2779 if (certDelegate != null) { 2780 List<String> scopes = policy.mDelegationMap.get(certDelegate); 2781 if (scopes == null) { 2782 scopes = new ArrayList<>(); 2783 policy.mDelegationMap.put(certDelegate, scopes); 2784 } 2785 if (!scopes.contains(DELEGATION_CERT_INSTALL)) { 2786 scopes.add(DELEGATION_CERT_INSTALL); 2787 needsRewrite = true; 2788 } 2789 } 2790 final String appRestrictionsDelegate = parser.getAttributeValue(null, 2791 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 2792 if (appRestrictionsDelegate != null) { 2793 List<String> scopes = policy.mDelegationMap.get(appRestrictionsDelegate); 2794 if (scopes == null) { 2795 scopes = new ArrayList<>(); 2796 policy.mDelegationMap.put(appRestrictionsDelegate, scopes); 2797 } 2798 if (!scopes.contains(DELEGATION_APP_RESTRICTIONS)) { 2799 scopes.add(DELEGATION_APP_RESTRICTIONS); 2800 needsRewrite = true; 2801 } 2802 } 2803 } 2804 2805 type = parser.next(); 2806 int outerDepth = parser.getDepth(); 2807 policy.mLockTaskPackages.clear(); 2808 policy.mAdminList.clear(); 2809 policy.mAdminMap.clear(); 2810 policy.mAffiliationIds.clear(); 2811 policy.mOwnerInstalledCaCerts.clear(); 2812 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2813 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2814 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2815 continue; 2816 } 2817 tag = parser.getName(); 2818 if ("admin".equals(tag)) { 2819 String name = parser.getAttributeValue(null, "name"); 2820 try { 2821 DeviceAdminInfo dai = findAdmin( 2822 ComponentName.unflattenFromString(name), userHandle, 2823 /* throwForMissionPermission= */ false); 2824 if (VERBOSE_LOG 2825 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 2826 != userHandle)) { 2827 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 2828 + dai.getActivityInfo().applicationInfo.uid + " for user " 2829 + userHandle); 2830 } 2831 if (dai != null) { 2832 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 2833 ap.readFromXml(parser); 2834 policy.mAdminMap.put(ap.info.getComponent(), ap); 2835 } 2836 } catch (RuntimeException e) { 2837 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 2838 } 2839 } else if ("delegation".equals(tag)) { 2840 // Parse delegation info. 2841 final String delegatePackage = parser.getAttributeValue(null, 2842 "delegatePackage"); 2843 final String scope = parser.getAttributeValue(null, "scope"); 2844 2845 // Get a reference to the scopes list for the delegatePackage. 2846 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 2847 // Or make a new list if none was found. 2848 if (scopes == null) { 2849 scopes = new ArrayList<>(); 2850 policy.mDelegationMap.put(delegatePackage, scopes); 2851 } 2852 // Add the new scope to the list of delegatePackage if it's not already there. 2853 if (!scopes.contains(scope)) { 2854 scopes.add(scope); 2855 } 2856 } else if ("failed-password-attempts".equals(tag)) { 2857 policy.mFailedPasswordAttempts = Integer.parseInt( 2858 parser.getAttributeValue(null, "value")); 2859 } else if ("password-owner".equals(tag)) { 2860 policy.mPasswordOwner = Integer.parseInt( 2861 parser.getAttributeValue(null, "value")); 2862 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) { 2863 policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME)); 2864 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2865 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2866 } else if (TAG_STATUS_BAR.equals(tag)) { 2867 policy.mStatusBarDisabled = Boolean.parseBoolean( 2868 parser.getAttributeValue(null, ATTR_DISABLED)); 2869 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2870 policy.doNotAskCredentialsOnBoot = true; 2871 } else if (TAG_AFFILIATION_ID.equals(tag)) { 2872 policy.mAffiliationIds.add(parser.getAttributeValue(null, ATTR_ID)); 2873 } else if (TAG_LAST_SECURITY_LOG_RETRIEVAL.equals(tag)) { 2874 policy.mLastSecurityLogRetrievalTime = Long.parseLong( 2875 parser.getAttributeValue(null, ATTR_VALUE)); 2876 } else if (TAG_LAST_BUG_REPORT_REQUEST.equals(tag)) { 2877 policy.mLastBugReportRequestTime = Long.parseLong( 2878 parser.getAttributeValue(null, ATTR_VALUE)); 2879 } else if (TAG_LAST_NETWORK_LOG_RETRIEVAL.equals(tag)) { 2880 policy.mLastNetworkLogsRetrievalTime = Long.parseLong( 2881 parser.getAttributeValue(null, ATTR_VALUE)); 2882 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 2883 String pending = parser.getAttributeValue(null, ATTR_VALUE); 2884 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 2885 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 2886 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 2887 } else if ("active-password".equals(tag)) { 2888 // Remove password metrics from saved settings, as we no longer wish to store 2889 // these on disk 2890 needsRewrite = true; 2891 } else if (TAG_PASSWORD_VALIDITY.equals(tag)) { 2892 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 2893 // This flag is only used for FDE devices 2894 policy.mPasswordValidAtLastCheckpoint = Boolean.parseBoolean( 2895 parser.getAttributeValue(null, ATTR_VALUE)); 2896 } 2897 } else if (TAG_PASSWORD_TOKEN_HANDLE.equals(tag)) { 2898 policy.mPasswordTokenHandle = Long.parseLong( 2899 parser.getAttributeValue(null, ATTR_VALUE)); 2900 } else if (TAG_CURRENT_INPUT_METHOD_SET.equals(tag)) { 2901 policy.mCurrentInputMethodSet = true; 2902 } else if (TAG_OWNER_INSTALLED_CA_CERT.equals(tag)) { 2903 policy.mOwnerInstalledCaCerts.add(parser.getAttributeValue(null, ATTR_ALIAS)); 2904 } else { 2905 Slog.w(LOG_TAG, "Unknown tag: " + tag); 2906 XmlUtils.skipCurrentTag(parser); 2907 } 2908 } 2909 } catch (FileNotFoundException e) { 2910 // Don't be noisy, this is normal if we haven't defined any policies. 2911 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 2912 | IndexOutOfBoundsException e) { 2913 Slog.w(LOG_TAG, "failed parsing " + file, e); 2914 } 2915 try { 2916 if (stream != null) { 2917 stream.close(); 2918 } 2919 } catch (IOException e) { 2920 // Ignore 2921 } 2922 2923 // Generate a list of admins from the admin map 2924 policy.mAdminList.addAll(policy.mAdminMap.values()); 2925 2926 // Might need to upgrade the file by rewriting it 2927 if (needsRewrite) { 2928 saveSettingsLocked(userHandle); 2929 } 2930 2931 validatePasswordOwnerLocked(policy); 2932 updateMaximumTimeToLockLocked(userHandle); 2933 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2934 if (policy.mStatusBarDisabled) { 2935 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2936 } 2937 } 2938 2939 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2940 long ident = mInjector.binderClearCallingIdentity(); 2941 try { 2942 mInjector.getIActivityManager() 2943 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2944 } catch (RemoteException e) { 2945 // Not gonna happen. 2946 } finally { 2947 mInjector.binderRestoreCallingIdentity(ident); 2948 } 2949 } 2950 2951 private void updateDeviceOwnerLocked() { 2952 long ident = mInjector.binderClearCallingIdentity(); 2953 try { 2954 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2955 // user id and also protect all other DAs too. 2956 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2957 if (deviceOwnerComponent != null) { 2958 mInjector.getIActivityManager() 2959 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2960 } 2961 } catch (RemoteException e) { 2962 // Not gonna happen. 2963 } finally { 2964 mInjector.binderRestoreCallingIdentity(ident); 2965 } 2966 } 2967 2968 static void validateQualityConstant(int quality) { 2969 switch (quality) { 2970 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2971 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2972 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2973 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2974 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2975 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2976 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2977 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2978 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 2979 return; 2980 } 2981 throw new IllegalArgumentException("Invalid quality constant: 0x" 2982 + Integer.toHexString(quality)); 2983 } 2984 2985 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2986 if (policy.mPasswordOwner >= 0) { 2987 boolean haveOwner = false; 2988 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2989 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2990 haveOwner = true; 2991 break; 2992 } 2993 } 2994 if (!haveOwner) { 2995 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2996 + " no longer active; disabling"); 2997 policy.mPasswordOwner = -1; 2998 } 2999 } 3000 } 3001 3002 @VisibleForTesting 3003 void systemReady(int phase) { 3004 if (!mHasFeature) { 3005 return; 3006 } 3007 switch (phase) { 3008 case SystemService.PHASE_LOCK_SETTINGS_READY: 3009 onLockSettingsReady(); 3010 break; 3011 case SystemService.PHASE_BOOT_COMPLETED: 3012 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 3013 break; 3014 } 3015 } 3016 3017 private void onLockSettingsReady() { 3018 getUserData(UserHandle.USER_SYSTEM); 3019 loadOwners(); 3020 cleanUpOldUsers(); 3021 maybeSetDefaultProfileOwnerUserRestrictions(); 3022 handleStartUser(UserHandle.USER_SYSTEM); 3023 3024 // Register an observer for watching for user setup complete and settings changes. 3025 mSetupContentObserver.register(); 3026 // Initialize the user setup state, to handle the upgrade case. 3027 updateUserSetupCompleteAndPaired(); 3028 3029 List<String> packageList; 3030 synchronized (this) { 3031 packageList = getKeepUninstalledPackagesLocked(); 3032 } 3033 if (packageList != null) { 3034 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 3035 } 3036 3037 synchronized (this) { 3038 // push the force-ephemeral-users policy to the user manager. 3039 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 3040 if (deviceOwner != null) { 3041 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 3042 } 3043 } 3044 } 3045 3046 private void ensureDeviceOwnerUserStarted() { 3047 final int userId; 3048 synchronized (this) { 3049 if (!mOwners.hasDeviceOwner()) { 3050 return; 3051 } 3052 userId = mOwners.getDeviceOwnerUserId(); 3053 } 3054 if (VERBOSE_LOG) { 3055 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 3056 } 3057 if (userId != UserHandle.USER_SYSTEM) { 3058 try { 3059 mInjector.getIActivityManager().startUserInBackground(userId); 3060 3061 // STOPSHIP Prevent the DO user from being killed. 3062 3063 } catch (RemoteException e) { 3064 Slog.w(LOG_TAG, "Exception starting user", e); 3065 } 3066 } 3067 } 3068 3069 void handleStartUser(int userId) { 3070 updateScreenCaptureDisabledInWindowManager(userId, 3071 getScreenCaptureDisabled(null, userId)); 3072 pushUserRestrictions(userId); 3073 3074 startOwnerService(userId, "start-user"); 3075 } 3076 3077 void handleUnlockUser(int userId) { 3078 startOwnerService(userId, "unlock-user"); 3079 } 3080 3081 void handleStopUser(int userId) { 3082 stopOwnerService(userId, "stop-user"); 3083 } 3084 3085 private void startOwnerService(int userId, String actionForLog) { 3086 final ComponentName owner = getOwnerComponent(userId); 3087 if (owner != null) { 3088 mDeviceAdminServiceController.startServiceForOwner( 3089 owner.getPackageName(), userId, actionForLog); 3090 } 3091 } 3092 3093 private void stopOwnerService(int userId, String actionForLog) { 3094 mDeviceAdminServiceController.stopServiceForOwner(userId, actionForLog); 3095 } 3096 3097 private void cleanUpOldUsers() { 3098 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 3099 // before reboot 3100 Set<Integer> usersWithProfileOwners; 3101 Set<Integer> usersWithData; 3102 synchronized(this) { 3103 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 3104 usersWithData = new ArraySet<>(); 3105 for (int i = 0; i < mUserData.size(); i++) { 3106 usersWithData.add(mUserData.keyAt(i)); 3107 } 3108 } 3109 List<UserInfo> allUsers = mUserManager.getUsers(); 3110 3111 Set<Integer> deletedUsers = new ArraySet<>(); 3112 deletedUsers.addAll(usersWithProfileOwners); 3113 deletedUsers.addAll(usersWithData); 3114 for (UserInfo userInfo : allUsers) { 3115 deletedUsers.remove(userInfo.id); 3116 } 3117 for (Integer userId : deletedUsers) { 3118 removeUserData(userId); 3119 } 3120 } 3121 3122 private void handlePasswordExpirationNotification(int userHandle) { 3123 final Bundle adminExtras = new Bundle(); 3124 adminExtras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 3125 3126 synchronized (this) { 3127 final long now = System.currentTimeMillis(); 3128 3129 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 3130 userHandle, /* parent */ false); 3131 final int N = admins.size(); 3132 for (int i = 0; i < N; i++) { 3133 ActiveAdmin admin = admins.get(i); 3134 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 3135 && admin.passwordExpirationTimeout > 0L 3136 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 3137 && admin.passwordExpirationDate > 0L) { 3138 sendAdminCommandLocked(admin, 3139 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING, adminExtras, null); 3140 } 3141 } 3142 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 3143 } 3144 } 3145 3146 /** 3147 * Clean up internal state when the set of installed trusted CA certificates changes. 3148 * 3149 * @param userHandle user to check for. This must be a real user and not, for example, 3150 * {@link UserHandle#ALL}. 3151 * @param installedCertificates the full set of certificate authorities currently installed for 3152 * {@param userHandle}. After calling this function, {@code mAcceptedCaCertificates} will 3153 * correspond to some subset of this. 3154 */ 3155 protected void onInstalledCertificatesChanged(final UserHandle userHandle, 3156 final @NonNull Collection<String> installedCertificates) { 3157 if (!mHasFeature) { 3158 return; 3159 } 3160 enforceManageUsers(); 3161 3162 synchronized (this) { 3163 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 3164 3165 boolean changed = false; 3166 changed |= policy.mAcceptedCaCertificates.retainAll(installedCertificates); 3167 changed |= policy.mOwnerInstalledCaCerts.retainAll(installedCertificates); 3168 if (changed) { 3169 saveSettingsLocked(userHandle.getIdentifier()); 3170 } 3171 } 3172 } 3173 3174 /** 3175 * Internal method used by {@link CertificateMonitor}. 3176 */ 3177 protected Set<String> getAcceptedCaCertificates(final UserHandle userHandle) { 3178 if (!mHasFeature) { 3179 return Collections.<String> emptySet(); 3180 } 3181 synchronized (this) { 3182 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 3183 return policy.mAcceptedCaCertificates; 3184 } 3185 } 3186 3187 /** 3188 * @param adminReceiver The admin to add 3189 * @param refreshing true = update an active admin, no error 3190 */ 3191 @Override 3192 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 3193 if (!mHasFeature) { 3194 return; 3195 } 3196 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 3197 } 3198 3199 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 3200 Bundle onEnableData) { 3201 mContext.enforceCallingOrSelfPermission( 3202 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3203 enforceFullCrossUsersPermission(userHandle); 3204 3205 DevicePolicyData policy = getUserData(userHandle); 3206 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 3207 /* throwForMissionPermission= */ true); 3208 if (info == null) { 3209 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 3210 } 3211 if (!info.getActivityInfo().applicationInfo.isInternal()) { 3212 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 3213 + adminReceiver); 3214 } 3215 if (info.getActivityInfo().applicationInfo.isInstantApp()) { 3216 throw new IllegalArgumentException("Instant apps cannot be device admins: " 3217 + adminReceiver); 3218 } 3219 synchronized (this) { 3220 long ident = mInjector.binderClearCallingIdentity(); 3221 try { 3222 final ActiveAdmin existingAdmin 3223 = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3224 if (!refreshing && existingAdmin != null) { 3225 throw new IllegalArgumentException("Admin is already added"); 3226 } 3227 if (policy.mRemovingAdmins.contains(adminReceiver)) { 3228 throw new IllegalArgumentException( 3229 "Trying to set an admin which is being removed"); 3230 } 3231 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 3232 newAdmin.testOnlyAdmin = 3233 (existingAdmin != null) ? existingAdmin.testOnlyAdmin 3234 : isPackageTestOnly(adminReceiver.getPackageName(), userHandle); 3235 policy.mAdminMap.put(adminReceiver, newAdmin); 3236 int replaceIndex = -1; 3237 final int N = policy.mAdminList.size(); 3238 for (int i=0; i < N; i++) { 3239 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 3240 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 3241 replaceIndex = i; 3242 break; 3243 } 3244 } 3245 if (replaceIndex == -1) { 3246 policy.mAdminList.add(newAdmin); 3247 enableIfNecessary(info.getPackageName(), userHandle); 3248 } else { 3249 policy.mAdminList.set(replaceIndex, newAdmin); 3250 } 3251 saveSettingsLocked(userHandle); 3252 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 3253 onEnableData, null); 3254 } finally { 3255 mInjector.binderRestoreCallingIdentity(ident); 3256 } 3257 } 3258 } 3259 3260 @Override 3261 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 3262 if (!mHasFeature) { 3263 return false; 3264 } 3265 enforceFullCrossUsersPermission(userHandle); 3266 synchronized (this) { 3267 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 3268 } 3269 } 3270 3271 @Override 3272 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 3273 if (!mHasFeature) { 3274 return false; 3275 } 3276 enforceFullCrossUsersPermission(userHandle); 3277 synchronized (this) { 3278 DevicePolicyData policyData = getUserData(userHandle); 3279 return policyData.mRemovingAdmins.contains(adminReceiver); 3280 } 3281 } 3282 3283 @Override 3284 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 3285 if (!mHasFeature) { 3286 return false; 3287 } 3288 enforceFullCrossUsersPermission(userHandle); 3289 synchronized (this) { 3290 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3291 if (administrator == null) { 3292 throw new SecurityException("No active admin " + adminReceiver); 3293 } 3294 return administrator.info.usesPolicy(policyId); 3295 } 3296 } 3297 3298 @Override 3299 @SuppressWarnings("unchecked") 3300 public List<ComponentName> getActiveAdmins(int userHandle) { 3301 if (!mHasFeature) { 3302 return Collections.EMPTY_LIST; 3303 } 3304 3305 enforceFullCrossUsersPermission(userHandle); 3306 synchronized (this) { 3307 DevicePolicyData policy = getUserData(userHandle); 3308 final int N = policy.mAdminList.size(); 3309 if (N <= 0) { 3310 return null; 3311 } 3312 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 3313 for (int i=0; i<N; i++) { 3314 res.add(policy.mAdminList.get(i).info.getComponent()); 3315 } 3316 return res; 3317 } 3318 } 3319 3320 @Override 3321 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 3322 if (!mHasFeature) { 3323 return false; 3324 } 3325 enforceFullCrossUsersPermission(userHandle); 3326 synchronized (this) { 3327 DevicePolicyData policy = getUserData(userHandle); 3328 final int N = policy.mAdminList.size(); 3329 for (int i=0; i<N; i++) { 3330 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 3331 return true; 3332 } 3333 } 3334 return false; 3335 } 3336 } 3337 3338 public void forceRemoveActiveAdmin(ComponentName adminReceiver, int userHandle) { 3339 if (!mHasFeature) { 3340 return; 3341 } 3342 Preconditions.checkNotNull(adminReceiver, "ComponentName is null"); 3343 enforceShell("forceRemoveActiveAdmin"); 3344 long ident = mInjector.binderClearCallingIdentity(); 3345 try { 3346 synchronized (this) { 3347 if (!isAdminTestOnlyLocked(adminReceiver, userHandle)) { 3348 throw new SecurityException("Attempt to remove non-test admin " 3349 + adminReceiver + " " + userHandle); 3350 } 3351 3352 // If admin is a device or profile owner tidy that up first. 3353 if (isDeviceOwner(adminReceiver, userHandle)) { 3354 clearDeviceOwnerLocked(getDeviceOwnerAdminLocked(), userHandle); 3355 } 3356 if (isProfileOwner(adminReceiver, userHandle)) { 3357 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, 3358 userHandle, /* parent */ false); 3359 clearProfileOwnerLocked(admin, userHandle); 3360 } 3361 } 3362 // Remove the admin skipping sending the broadcast. 3363 removeAdminArtifacts(adminReceiver, userHandle); 3364 Slog.i(LOG_TAG, "Admin " + adminReceiver + " removed from user " + userHandle); 3365 } finally { 3366 mInjector.binderRestoreCallingIdentity(ident); 3367 } 3368 } 3369 3370 private void clearDeviceOwnerUserRestrictionLocked(UserHandle userHandle) { 3371 // ManagedProvisioning/DPC sets DISALLOW_ADD_USER. Clear to recover to the original state 3372 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_USER, userHandle)) { 3373 mUserManager.setUserRestriction(UserManager.DISALLOW_ADD_USER, false, userHandle); 3374 } 3375 } 3376 3377 /** 3378 * Return if a given package has testOnly="true", in which case we'll relax certain rules 3379 * for CTS. 3380 * 3381 * DO NOT use this method except in {@link #setActiveAdmin}. Use {@link #isAdminTestOnlyLocked} 3382 * to check wehter an active admin is test-only or not. 3383 * 3384 * The system allows this flag to be changed when an app is updated, which is not good 3385 * for us. So we persist the flag in {@link ActiveAdmin} when an admin is first installed, 3386 * and used the persisted version in actual checks. (See b/31382361 and b/28928996) 3387 */ 3388 private boolean isPackageTestOnly(String packageName, int userHandle) { 3389 final ApplicationInfo ai; 3390 try { 3391 ai = mIPackageManager.getApplicationInfo(packageName, 3392 (PackageManager.MATCH_DIRECT_BOOT_AWARE 3393 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE), userHandle); 3394 } catch (RemoteException e) { 3395 throw new IllegalStateException(e); 3396 } 3397 if (ai == null) { 3398 throw new IllegalStateException("Couldn't find package: " 3399 + packageName + " on user " + userHandle); 3400 } 3401 return (ai.flags & ApplicationInfo.FLAG_TEST_ONLY) != 0; 3402 } 3403 3404 /** 3405 * See {@link #isPackageTestOnly}. 3406 */ 3407 private boolean isAdminTestOnlyLocked(ComponentName who, int userHandle) { 3408 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3409 return (admin != null) && admin.testOnlyAdmin; 3410 } 3411 3412 private void enforceShell(String method) { 3413 final int callingUid = Binder.getCallingUid(); 3414 if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) { 3415 throw new SecurityException("Non-shell user attempted to call " + method); 3416 } 3417 } 3418 3419 @Override 3420 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 3421 if (!mHasFeature) { 3422 return; 3423 } 3424 enforceFullCrossUsersPermission(userHandle); 3425 enforceUserUnlocked(userHandle); 3426 synchronized (this) { 3427 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3428 if (admin == null) { 3429 return; 3430 } 3431 // Active device/profile owners must remain active admins. 3432 if (isDeviceOwner(adminReceiver, userHandle) 3433 || isProfileOwner(adminReceiver, userHandle)) { 3434 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 3435 adminReceiver); 3436 return; 3437 } 3438 if (admin.getUid() != mInjector.binderGetCallingUid()) { 3439 mContext.enforceCallingOrSelfPermission( 3440 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3441 } 3442 long ident = mInjector.binderClearCallingIdentity(); 3443 try { 3444 removeActiveAdminLocked(adminReceiver, userHandle); 3445 } finally { 3446 mInjector.binderRestoreCallingIdentity(ident); 3447 } 3448 } 3449 } 3450 3451 @Override 3452 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 3453 ComponentName profileOwner = getProfileOwner(userHandle); 3454 // Profile challenge is supported on N or newer release. 3455 return profileOwner != null && 3456 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 3457 } 3458 3459 @Override 3460 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 3461 if (!mHasFeature) { 3462 return; 3463 } 3464 Preconditions.checkNotNull(who, "ComponentName is null"); 3465 validateQualityConstant(quality); 3466 3467 synchronized (this) { 3468 ActiveAdmin ap = getActiveAdminForCallerLocked( 3469 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3470 if (ap.minimumPasswordMetrics.quality != quality) { 3471 ap.minimumPasswordMetrics.quality = quality; 3472 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3473 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3474 } 3475 } 3476 } 3477 3478 /** 3479 * Updates flag in memory that tells us whether the user's password currently satisfies the 3480 * requirements set by all of the user's active admins. This should be called before 3481 * {@link #saveSettingsLocked} whenever the password or the admin policies have changed. 3482 */ 3483 @GuardedBy("DevicePolicyManagerService.this") 3484 private void updatePasswordValidityCheckpointLocked(int userHandle) { 3485 DevicePolicyData policy = getUserData(userHandle); 3486 policy.mPasswordValidAtLastCheckpoint = isActivePasswordSufficientForUserLocked( 3487 policy, policy.mUserHandle, false); 3488 } 3489 3490 @Override 3491 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 3492 if (!mHasFeature) { 3493 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3494 } 3495 enforceFullCrossUsersPermission(userHandle); 3496 synchronized (this) { 3497 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3498 3499 if (who != null) { 3500 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3501 return admin != null ? admin.minimumPasswordMetrics.quality : mode; 3502 } 3503 3504 // Return the strictest policy across all participating admins. 3505 List<ActiveAdmin> admins = 3506 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3507 final int N = admins.size(); 3508 for (int i = 0; i < N; i++) { 3509 ActiveAdmin admin = admins.get(i); 3510 if (mode < admin.minimumPasswordMetrics.quality) { 3511 mode = admin.minimumPasswordMetrics.quality; 3512 } 3513 } 3514 return mode; 3515 } 3516 } 3517 3518 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 3519 int userHandle, boolean parent) { 3520 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 3521 // If this user has a separate challenge, only return its restrictions. 3522 return getUserDataUnchecked(userHandle).mAdminList; 3523 } else { 3524 // Return all admins for this user and the profiles that are visible from this 3525 // user that do not use a separate work challenge. 3526 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 3527 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3528 DevicePolicyData policy = getUserData(userInfo.id); 3529 if (!userInfo.isManagedProfile()) { 3530 admins.addAll(policy.mAdminList); 3531 } else { 3532 // For managed profiles, we always include the policies set on the parent 3533 // profile. Additionally, we include the ones set on the managed profile 3534 // if no separate challenge is in place. 3535 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 3536 final int N = policy.mAdminList.size(); 3537 for (int i = 0; i < N; i++) { 3538 ActiveAdmin admin = policy.mAdminList.get(i); 3539 if (admin.hasParentActiveAdmin()) { 3540 admins.add(admin.getParentActiveAdmin()); 3541 } 3542 if (!hasSeparateChallenge) { 3543 admins.add(admin); 3544 } 3545 } 3546 } 3547 } 3548 return admins; 3549 } 3550 } 3551 3552 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 3553 long ident = mInjector.binderClearCallingIdentity(); 3554 try { 3555 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 3556 } finally { 3557 mInjector.binderRestoreCallingIdentity(ident); 3558 } 3559 } 3560 3561 @Override 3562 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 3563 if (!mHasFeature) { 3564 return; 3565 } 3566 Preconditions.checkNotNull(who, "ComponentName is null"); 3567 synchronized (this) { 3568 ActiveAdmin ap = getActiveAdminForCallerLocked( 3569 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3570 if (ap.minimumPasswordMetrics.length != length) { 3571 ap.minimumPasswordMetrics.length = length; 3572 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3573 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3574 } 3575 } 3576 } 3577 3578 @Override 3579 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 3580 if (!mHasFeature) { 3581 return 0; 3582 } 3583 enforceFullCrossUsersPermission(userHandle); 3584 synchronized (this) { 3585 int length = 0; 3586 3587 if (who != null) { 3588 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3589 return admin != null ? admin.minimumPasswordMetrics.length : length; 3590 } 3591 3592 // Return the strictest policy across all participating admins. 3593 List<ActiveAdmin> admins = 3594 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3595 final int N = admins.size(); 3596 for (int i = 0; i < N; i++) { 3597 ActiveAdmin admin = admins.get(i); 3598 if (length < admin.minimumPasswordMetrics.length) { 3599 length = admin.minimumPasswordMetrics.length; 3600 } 3601 } 3602 return length; 3603 } 3604 } 3605 3606 @Override 3607 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 3608 if (!mHasFeature) { 3609 return; 3610 } 3611 Preconditions.checkNotNull(who, "ComponentName is null"); 3612 synchronized (this) { 3613 ActiveAdmin ap = getActiveAdminForCallerLocked( 3614 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3615 if (ap.passwordHistoryLength != length) { 3616 ap.passwordHistoryLength = length; 3617 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3618 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3619 } 3620 } 3621 } 3622 3623 @Override 3624 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 3625 if (!mHasFeature) { 3626 return 0; 3627 } 3628 enforceFullCrossUsersPermission(userHandle); 3629 synchronized (this) { 3630 int length = 0; 3631 3632 if (who != null) { 3633 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3634 return admin != null ? admin.passwordHistoryLength : length; 3635 } 3636 3637 // Return the strictest policy across all participating admins. 3638 List<ActiveAdmin> admins = 3639 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3640 final int N = admins.size(); 3641 for (int i = 0; i < N; i++) { 3642 ActiveAdmin admin = admins.get(i); 3643 if (length < admin.passwordHistoryLength) { 3644 length = admin.passwordHistoryLength; 3645 } 3646 } 3647 3648 return length; 3649 } 3650 } 3651 3652 @Override 3653 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 3654 if (!mHasFeature) { 3655 return; 3656 } 3657 Preconditions.checkNotNull(who, "ComponentName is null"); 3658 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 3659 final int userHandle = mInjector.userHandleGetCallingUserId(); 3660 synchronized (this) { 3661 ActiveAdmin ap = getActiveAdminForCallerLocked( 3662 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 3663 // Calling this API automatically bumps the expiration date 3664 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3665 ap.passwordExpirationDate = expiration; 3666 ap.passwordExpirationTimeout = timeout; 3667 if (timeout > 0L) { 3668 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 3669 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 3670 .format(new Date(expiration))); 3671 } 3672 saveSettingsLocked(userHandle); 3673 3674 // in case this is the first one, set the alarm on the appropriate user. 3675 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 3676 } 3677 } 3678 3679 /** 3680 * Return a single admin's expiration cycle time, or the min of all cycle times. 3681 * Returns 0 if not configured. 3682 */ 3683 @Override 3684 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 3685 if (!mHasFeature) { 3686 return 0L; 3687 } 3688 enforceFullCrossUsersPermission(userHandle); 3689 synchronized (this) { 3690 long timeout = 0L; 3691 3692 if (who != null) { 3693 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3694 return admin != null ? admin.passwordExpirationTimeout : timeout; 3695 } 3696 3697 // Return the strictest policy across all participating admins. 3698 List<ActiveAdmin> admins = 3699 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3700 final int N = admins.size(); 3701 for (int i = 0; i < N; i++) { 3702 ActiveAdmin admin = admins.get(i); 3703 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 3704 && timeout > admin.passwordExpirationTimeout)) { 3705 timeout = admin.passwordExpirationTimeout; 3706 } 3707 } 3708 return timeout; 3709 } 3710 } 3711 3712 @Override 3713 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3714 final int userId = UserHandle.getCallingUserId(); 3715 List<String> changedProviders = null; 3716 3717 synchronized (this) { 3718 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3719 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3720 if (activeAdmin.crossProfileWidgetProviders == null) { 3721 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 3722 } 3723 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3724 if (!providers.contains(packageName)) { 3725 providers.add(packageName); 3726 changedProviders = new ArrayList<>(providers); 3727 saveSettingsLocked(userId); 3728 } 3729 } 3730 3731 if (changedProviders != null) { 3732 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3733 return true; 3734 } 3735 3736 return false; 3737 } 3738 3739 @Override 3740 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3741 final int userId = UserHandle.getCallingUserId(); 3742 List<String> changedProviders = null; 3743 3744 synchronized (this) { 3745 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3746 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3747 if (activeAdmin.crossProfileWidgetProviders == null 3748 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3749 return false; 3750 } 3751 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3752 if (providers.remove(packageName)) { 3753 changedProviders = new ArrayList<>(providers); 3754 saveSettingsLocked(userId); 3755 } 3756 } 3757 3758 if (changedProviders != null) { 3759 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3760 return true; 3761 } 3762 3763 return false; 3764 } 3765 3766 @Override 3767 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 3768 synchronized (this) { 3769 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3770 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3771 if (activeAdmin.crossProfileWidgetProviders == null 3772 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3773 return null; 3774 } 3775 if (mInjector.binderIsCallingUidMyUid()) { 3776 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 3777 } else { 3778 return activeAdmin.crossProfileWidgetProviders; 3779 } 3780 } 3781 } 3782 3783 /** 3784 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 3785 * Returns 0 if not configured. 3786 */ 3787 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 3788 long timeout = 0L; 3789 3790 if (who != null) { 3791 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3792 return admin != null ? admin.passwordExpirationDate : timeout; 3793 } 3794 3795 // Return the strictest policy across all participating admins. 3796 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3797 final int N = admins.size(); 3798 for (int i = 0; i < N; i++) { 3799 ActiveAdmin admin = admins.get(i); 3800 if (timeout == 0L || (admin.passwordExpirationDate != 0 3801 && timeout > admin.passwordExpirationDate)) { 3802 timeout = admin.passwordExpirationDate; 3803 } 3804 } 3805 return timeout; 3806 } 3807 3808 @Override 3809 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 3810 if (!mHasFeature) { 3811 return 0L; 3812 } 3813 enforceFullCrossUsersPermission(userHandle); 3814 synchronized (this) { 3815 return getPasswordExpirationLocked(who, userHandle, parent); 3816 } 3817 } 3818 3819 @Override 3820 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 3821 if (!mHasFeature) { 3822 return; 3823 } 3824 Preconditions.checkNotNull(who, "ComponentName is null"); 3825 synchronized (this) { 3826 ActiveAdmin ap = getActiveAdminForCallerLocked( 3827 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3828 if (ap.minimumPasswordMetrics.upperCase != length) { 3829 ap.minimumPasswordMetrics.upperCase = length; 3830 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3831 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3832 } 3833 } 3834 } 3835 3836 @Override 3837 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 3838 if (!mHasFeature) { 3839 return 0; 3840 } 3841 enforceFullCrossUsersPermission(userHandle); 3842 synchronized (this) { 3843 int length = 0; 3844 3845 if (who != null) { 3846 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3847 return admin != null ? admin.minimumPasswordMetrics.upperCase : length; 3848 } 3849 3850 // Return the strictest policy across all participating admins. 3851 List<ActiveAdmin> admins = 3852 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3853 final int N = admins.size(); 3854 for (int i = 0; i < N; i++) { 3855 ActiveAdmin admin = admins.get(i); 3856 if (length < admin.minimumPasswordMetrics.upperCase) { 3857 length = admin.minimumPasswordMetrics.upperCase; 3858 } 3859 } 3860 return length; 3861 } 3862 } 3863 3864 @Override 3865 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 3866 Preconditions.checkNotNull(who, "ComponentName is null"); 3867 synchronized (this) { 3868 ActiveAdmin ap = getActiveAdminForCallerLocked( 3869 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3870 if (ap.minimumPasswordMetrics.lowerCase != length) { 3871 ap.minimumPasswordMetrics.lowerCase = length; 3872 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3873 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3874 } 3875 } 3876 } 3877 3878 @Override 3879 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 3880 if (!mHasFeature) { 3881 return 0; 3882 } 3883 enforceFullCrossUsersPermission(userHandle); 3884 synchronized (this) { 3885 int length = 0; 3886 3887 if (who != null) { 3888 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3889 return admin != null ? admin.minimumPasswordMetrics.lowerCase : length; 3890 } 3891 3892 // Return the strictest policy across all participating admins. 3893 List<ActiveAdmin> admins = 3894 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3895 final int N = admins.size(); 3896 for (int i = 0; i < N; i++) { 3897 ActiveAdmin admin = admins.get(i); 3898 if (length < admin.minimumPasswordMetrics.lowerCase) { 3899 length = admin.minimumPasswordMetrics.lowerCase; 3900 } 3901 } 3902 return length; 3903 } 3904 } 3905 3906 @Override 3907 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 3908 if (!mHasFeature) { 3909 return; 3910 } 3911 Preconditions.checkNotNull(who, "ComponentName is null"); 3912 synchronized (this) { 3913 ActiveAdmin ap = getActiveAdminForCallerLocked( 3914 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3915 if (ap.minimumPasswordMetrics.letters != length) { 3916 ap.minimumPasswordMetrics.letters = length; 3917 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3918 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3919 } 3920 } 3921 } 3922 3923 @Override 3924 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 3925 if (!mHasFeature) { 3926 return 0; 3927 } 3928 enforceFullCrossUsersPermission(userHandle); 3929 synchronized (this) { 3930 int length = 0; 3931 3932 if (who != null) { 3933 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3934 return admin != null ? admin.minimumPasswordMetrics.letters : length; 3935 } 3936 3937 // Return the strictest policy across all participating admins. 3938 List<ActiveAdmin> admins = 3939 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3940 final int N = admins.size(); 3941 for (int i = 0; i < N; i++) { 3942 ActiveAdmin admin = admins.get(i); 3943 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3944 continue; 3945 } 3946 if (length < admin.minimumPasswordMetrics.letters) { 3947 length = admin.minimumPasswordMetrics.letters; 3948 } 3949 } 3950 return length; 3951 } 3952 } 3953 3954 @Override 3955 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 3956 if (!mHasFeature) { 3957 return; 3958 } 3959 Preconditions.checkNotNull(who, "ComponentName is null"); 3960 synchronized (this) { 3961 ActiveAdmin ap = getActiveAdminForCallerLocked( 3962 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3963 if (ap.minimumPasswordMetrics.numeric != length) { 3964 ap.minimumPasswordMetrics.numeric = length; 3965 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3966 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3967 } 3968 } 3969 } 3970 3971 @Override 3972 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 3973 if (!mHasFeature) { 3974 return 0; 3975 } 3976 enforceFullCrossUsersPermission(userHandle); 3977 synchronized (this) { 3978 int length = 0; 3979 3980 if (who != null) { 3981 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3982 return admin != null ? admin.minimumPasswordMetrics.numeric : length; 3983 } 3984 3985 // Return the strictest policy across all participating admins. 3986 List<ActiveAdmin> admins = 3987 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3988 final int N = admins.size(); 3989 for (int i = 0; i < N; i++) { 3990 ActiveAdmin admin = admins.get(i); 3991 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3992 continue; 3993 } 3994 if (length < admin.minimumPasswordMetrics.numeric) { 3995 length = admin.minimumPasswordMetrics.numeric; 3996 } 3997 } 3998 return length; 3999 } 4000 } 4001 4002 @Override 4003 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 4004 if (!mHasFeature) { 4005 return; 4006 } 4007 Preconditions.checkNotNull(who, "ComponentName is null"); 4008 synchronized (this) { 4009 ActiveAdmin ap = getActiveAdminForCallerLocked( 4010 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4011 if (ap.minimumPasswordMetrics.symbols != length) { 4012 ap.minimumPasswordMetrics.symbols = length; 4013 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 4014 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4015 } 4016 } 4017 } 4018 4019 @Override 4020 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 4021 if (!mHasFeature) { 4022 return 0; 4023 } 4024 enforceFullCrossUsersPermission(userHandle); 4025 synchronized (this) { 4026 int length = 0; 4027 4028 if (who != null) { 4029 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4030 return admin != null ? admin.minimumPasswordMetrics.symbols : length; 4031 } 4032 4033 // Return the strictest policy across all participating admins. 4034 List<ActiveAdmin> admins = 4035 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4036 final int N = admins.size(); 4037 for (int i = 0; i < N; i++) { 4038 ActiveAdmin admin = admins.get(i); 4039 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 4040 continue; 4041 } 4042 if (length < admin.minimumPasswordMetrics.symbols) { 4043 length = admin.minimumPasswordMetrics.symbols; 4044 } 4045 } 4046 return length; 4047 } 4048 } 4049 4050 @Override 4051 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 4052 if (!mHasFeature) { 4053 return; 4054 } 4055 Preconditions.checkNotNull(who, "ComponentName is null"); 4056 synchronized (this) { 4057 ActiveAdmin ap = getActiveAdminForCallerLocked( 4058 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4059 if (ap.minimumPasswordMetrics.nonLetter != length) { 4060 ap.minimumPasswordMetrics.nonLetter = length; 4061 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 4062 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4063 } 4064 } 4065 } 4066 4067 @Override 4068 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 4069 if (!mHasFeature) { 4070 return 0; 4071 } 4072 enforceFullCrossUsersPermission(userHandle); 4073 synchronized (this) { 4074 int length = 0; 4075 4076 if (who != null) { 4077 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4078 return admin != null ? admin.minimumPasswordMetrics.nonLetter : length; 4079 } 4080 4081 // Return the strictest policy across all participating admins. 4082 List<ActiveAdmin> admins = 4083 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4084 final int N = admins.size(); 4085 for (int i = 0; i < N; i++) { 4086 ActiveAdmin admin = admins.get(i); 4087 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 4088 continue; 4089 } 4090 if (length < admin.minimumPasswordMetrics.nonLetter) { 4091 length = admin.minimumPasswordMetrics.nonLetter; 4092 } 4093 } 4094 return length; 4095 } 4096 } 4097 4098 @Override 4099 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 4100 if (!mHasFeature) { 4101 return true; 4102 } 4103 enforceFullCrossUsersPermission(userHandle); 4104 enforceUserUnlocked(userHandle, parent); 4105 4106 synchronized (this) { 4107 // This API can only be called by an active device admin, 4108 // so try to retrieve it to check that the caller is one. 4109 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4110 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 4111 return isActivePasswordSufficientForUserLocked(policy, userHandle, parent); 4112 } 4113 } 4114 4115 @Override 4116 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 4117 if (!mHasFeature) { 4118 return true; 4119 } 4120 enforceFullCrossUsersPermission(userHandle); 4121 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 4122 4123 synchronized (this) { 4124 final int targetUser = getProfileParentId(userHandle); 4125 enforceUserUnlocked(targetUser, false); 4126 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false)); 4127 return isActivePasswordSufficientForUserLocked(policy, targetUser, false); 4128 } 4129 } 4130 4131 private boolean isActivePasswordSufficientForUserLocked( 4132 DevicePolicyData policy, int userHandle, boolean parent) { 4133 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled() 4134 && !policy.mPasswordStateHasBeenSetSinceBoot) { 4135 // Before user enters their password for the first time after a reboot, return the 4136 // value of this flag, which tells us whether the password was valid the last time 4137 // settings were saved. If DPC changes password requirements on boot so that the 4138 // current password no longer meets the requirements, this value will be stale until 4139 // the next time the password is entered. 4140 return policy.mPasswordValidAtLastCheckpoint; 4141 } 4142 4143 final int requiredPasswordQuality = getPasswordQuality(null, userHandle, parent); 4144 if (policy.mActivePasswordMetrics.quality < requiredPasswordQuality) { 4145 return false; 4146 } 4147 if (requiredPasswordQuality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC 4148 && policy.mActivePasswordMetrics.length < getPasswordMinimumLength( 4149 null, userHandle, parent)) { 4150 return false; 4151 } 4152 if (requiredPasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4153 return true; 4154 } 4155 return policy.mActivePasswordMetrics.upperCase >= getPasswordMinimumUpperCase( 4156 null, userHandle, parent) 4157 && policy.mActivePasswordMetrics.lowerCase >= getPasswordMinimumLowerCase( 4158 null, userHandle, parent) 4159 && policy.mActivePasswordMetrics.letters >= getPasswordMinimumLetters( 4160 null, userHandle, parent) 4161 && policy.mActivePasswordMetrics.numeric >= getPasswordMinimumNumeric( 4162 null, userHandle, parent) 4163 && policy.mActivePasswordMetrics.symbols >= getPasswordMinimumSymbols( 4164 null, userHandle, parent) 4165 && policy.mActivePasswordMetrics.nonLetter >= getPasswordMinimumNonLetter( 4166 null, userHandle, parent); 4167 } 4168 4169 @Override 4170 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 4171 enforceFullCrossUsersPermission(userHandle); 4172 synchronized (this) { 4173 if (!isCallerWithSystemUid()) { 4174 // This API can only be called by an active device admin, 4175 // so try to retrieve it to check that the caller is one. 4176 getActiveAdminForCallerLocked( 4177 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4178 } 4179 4180 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 4181 4182 return policy.mFailedPasswordAttempts; 4183 } 4184 } 4185 4186 @Override 4187 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 4188 if (!mHasFeature) { 4189 return; 4190 } 4191 Preconditions.checkNotNull(who, "ComponentName is null"); 4192 synchronized (this) { 4193 // This API can only be called by an active device admin, 4194 // so try to retrieve it to check that the caller is one. 4195 getActiveAdminForCallerLocked( 4196 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 4197 ActiveAdmin ap = getActiveAdminForCallerLocked( 4198 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4199 if (ap.maximumFailedPasswordsForWipe != num) { 4200 ap.maximumFailedPasswordsForWipe = num; 4201 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4202 } 4203 } 4204 } 4205 4206 @Override 4207 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 4208 if (!mHasFeature) { 4209 return 0; 4210 } 4211 enforceFullCrossUsersPermission(userHandle); 4212 synchronized (this) { 4213 ActiveAdmin admin = (who != null) 4214 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 4215 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 4216 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 4217 } 4218 } 4219 4220 @Override 4221 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 4222 if (!mHasFeature) { 4223 return UserHandle.USER_NULL; 4224 } 4225 enforceFullCrossUsersPermission(userHandle); 4226 synchronized (this) { 4227 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4228 userHandle, parent); 4229 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 4230 } 4231 } 4232 4233 /** 4234 * Returns the admin with the strictest policy on maximum failed passwords for: 4235 * <ul> 4236 * <li>this user if it has a separate profile challenge, or 4237 * <li>this user and all profiles that don't have their own challenge otherwise. 4238 * </ul> 4239 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 4240 * the primary profile. 4241 * Returns {@code null} if no participating admin has that policy set. 4242 */ 4243 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 4244 int userHandle, boolean parent) { 4245 int count = 0; 4246 ActiveAdmin strictestAdmin = null; 4247 4248 // Return the strictest policy across all participating admins. 4249 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4250 final int N = admins.size(); 4251 for (int i = 0; i < N; i++) { 4252 ActiveAdmin admin = admins.get(i); 4253 if (admin.maximumFailedPasswordsForWipe == 4254 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 4255 continue; // No max number of failed passwords policy set for this profile. 4256 } 4257 4258 // We always favor the primary profile if several profiles have the same value set. 4259 int userId = admin.getUserHandle().getIdentifier(); 4260 if (count == 0 || 4261 count > admin.maximumFailedPasswordsForWipe || 4262 (count == admin.maximumFailedPasswordsForWipe && 4263 getUserInfo(userId).isPrimary())) { 4264 count = admin.maximumFailedPasswordsForWipe; 4265 strictestAdmin = admin; 4266 } 4267 } 4268 return strictestAdmin; 4269 } 4270 4271 private UserInfo getUserInfo(@UserIdInt int userId) { 4272 final long token = mInjector.binderClearCallingIdentity(); 4273 try { 4274 return mUserManager.getUserInfo(userId); 4275 } finally { 4276 mInjector.binderRestoreCallingIdentity(token); 4277 } 4278 } 4279 4280 @Override 4281 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 4282 final int callingUid = mInjector.binderGetCallingUid(); 4283 final int userHandle = mInjector.userHandleGetCallingUserId(); 4284 4285 String password = passwordOrNull != null ? passwordOrNull : ""; 4286 4287 // Password resetting to empty/null is not allowed for managed profiles. 4288 if (TextUtils.isEmpty(password)) { 4289 enforceNotManagedProfile(userHandle, "clear the active password"); 4290 } 4291 4292 synchronized (this) { 4293 // If caller has PO (or DO) it can change the password, so see if that's the case first. 4294 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 4295 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 4296 final boolean preN; 4297 if (admin != null) { 4298 final int targetSdk = getTargetSdk(admin.info.getPackageName(), userHandle); 4299 if (targetSdk >= Build.VERSION_CODES.O) { 4300 throw new SecurityException("resetPassword() is deprecated for DPC targeting O" 4301 + " or later"); 4302 } 4303 preN = targetSdk <= android.os.Build.VERSION_CODES.M; 4304 } else { 4305 // Otherwise, make sure the caller has any active admin with the right policy. 4306 admin = getActiveAdminForCallerLocked(null, 4307 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 4308 preN = getTargetSdk(admin.info.getPackageName(), 4309 userHandle) <= android.os.Build.VERSION_CODES.M; 4310 4311 // As of N, password resetting to empty/null is not allowed anymore. 4312 // TODO Should we allow DO/PO to set an empty password? 4313 if (TextUtils.isEmpty(password)) { 4314 if (!preN) { 4315 throw new SecurityException("Cannot call with null password"); 4316 } else { 4317 Slog.e(LOG_TAG, "Cannot call with null password"); 4318 return false; 4319 } 4320 } 4321 // As of N, password cannot be changed by the admin if it is already set. 4322 if (isLockScreenSecureUnchecked(userHandle)) { 4323 if (!preN) { 4324 throw new SecurityException("Admin cannot change current password"); 4325 } else { 4326 Slog.e(LOG_TAG, "Admin cannot change current password"); 4327 return false; 4328 } 4329 } 4330 } 4331 // Do not allow to reset password when current user has a managed profile 4332 if (!isManagedProfile(userHandle)) { 4333 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4334 if (userInfo.isManagedProfile()) { 4335 if (!preN) { 4336 throw new IllegalStateException( 4337 "Cannot reset password on user has managed profile"); 4338 } else { 4339 Slog.e(LOG_TAG, "Cannot reset password on user has managed profile"); 4340 return false; 4341 } 4342 } 4343 } 4344 } 4345 // Do not allow to reset password when user is locked 4346 if (!mUserManager.isUserUnlocked(userHandle)) { 4347 if (!preN) { 4348 throw new IllegalStateException("Cannot reset password when user is locked"); 4349 } else { 4350 Slog.e(LOG_TAG, "Cannot reset password when user is locked"); 4351 return false; 4352 } 4353 } 4354 } 4355 4356 return resetPasswordInternal(password, 0, null, flags, callingUid, userHandle); 4357 } 4358 4359 private boolean resetPasswordInternal(String password, long tokenHandle, byte[] token, 4360 int flags, int callingUid, int userHandle) { 4361 int quality; 4362 synchronized (this) { 4363 quality = getPasswordQuality(null, userHandle, /* parent */ false); 4364 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 4365 quality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 4366 } 4367 final PasswordMetrics metrics = PasswordMetrics.computeForPassword(password); 4368 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 4369 final int realQuality = metrics.quality; 4370 if (realQuality < quality 4371 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4372 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 4373 + Integer.toHexString(realQuality) 4374 + " does not meet required quality 0x" 4375 + Integer.toHexString(quality)); 4376 return false; 4377 } 4378 quality = Math.max(realQuality, quality); 4379 } 4380 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 4381 if (password.length() < length) { 4382 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 4383 + " does not meet required length " + length); 4384 return false; 4385 } 4386 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4387 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 4388 if(metrics.letters < neededLetters) { 4389 Slog.w(LOG_TAG, "resetPassword: number of letters " + metrics.letters 4390 + " does not meet required number of letters " + neededLetters); 4391 return false; 4392 } 4393 int neededNumeric = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 4394 if (metrics.numeric < neededNumeric) { 4395 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + metrics.numeric 4396 + " does not meet required number of numerical digits " 4397 + neededNumeric); 4398 return false; 4399 } 4400 int neededLowerCase = getPasswordMinimumLowerCase( 4401 null, userHandle, /* parent */ false); 4402 if (metrics.lowerCase < neededLowerCase) { 4403 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " 4404 + metrics.lowerCase 4405 + " does not meet required number of lowercase letters " 4406 + neededLowerCase); 4407 return false; 4408 } 4409 int neededUpperCase = getPasswordMinimumUpperCase( 4410 null, userHandle, /* parent */ false); 4411 if (metrics.upperCase < neededUpperCase) { 4412 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " 4413 + metrics.upperCase 4414 + " does not meet required number of uppercase letters " 4415 + neededUpperCase); 4416 return false; 4417 } 4418 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 4419 if (metrics.symbols < neededSymbols) { 4420 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + metrics.symbols 4421 + " does not meet required number of special symbols " + neededSymbols); 4422 return false; 4423 } 4424 int neededNonLetter = getPasswordMinimumNonLetter( 4425 null, userHandle, /* parent */ false); 4426 if (metrics.nonLetter < neededNonLetter) { 4427 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " 4428 + metrics.nonLetter 4429 + " does not meet required number of non-letter characters " 4430 + neededNonLetter); 4431 return false; 4432 } 4433 } 4434 } 4435 4436 DevicePolicyData policy = getUserData(userHandle); 4437 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 4438 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 4439 return false; 4440 } 4441 4442 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 4443 boolean doNotAskCredentialsOnBoot = 4444 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 4445 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 4446 setDoNotAskCredentialsOnBoot(); 4447 } 4448 4449 // Don't do this with the lock held, because it is going to call 4450 // back in to the service. 4451 final long ident = mInjector.binderClearCallingIdentity(); 4452 final boolean result; 4453 try { 4454 if (token == null) { 4455 if (!TextUtils.isEmpty(password)) { 4456 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 4457 } else { 4458 mLockPatternUtils.clearLock(null, userHandle); 4459 } 4460 result = true; 4461 } else { 4462 result = mLockPatternUtils.setLockCredentialWithToken(password, 4463 TextUtils.isEmpty(password) ? LockPatternUtils.CREDENTIAL_TYPE_NONE 4464 : LockPatternUtils.CREDENTIAL_TYPE_PASSWORD, 4465 quality, tokenHandle, token, userHandle); 4466 } 4467 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 4468 if (requireEntry) { 4469 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 4470 UserHandle.USER_ALL); 4471 } 4472 synchronized (this) { 4473 int newOwner = requireEntry ? callingUid : -1; 4474 if (policy.mPasswordOwner != newOwner) { 4475 policy.mPasswordOwner = newOwner; 4476 saveSettingsLocked(userHandle); 4477 } 4478 } 4479 } finally { 4480 mInjector.binderRestoreCallingIdentity(ident); 4481 } 4482 return result; 4483 } 4484 4485 private boolean isLockScreenSecureUnchecked(int userId) { 4486 long ident = mInjector.binderClearCallingIdentity(); 4487 try { 4488 return mLockPatternUtils.isSecure(userId); 4489 } finally { 4490 mInjector.binderRestoreCallingIdentity(ident); 4491 } 4492 } 4493 4494 private void setDoNotAskCredentialsOnBoot() { 4495 synchronized (this) { 4496 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4497 if (!policyData.doNotAskCredentialsOnBoot) { 4498 policyData.doNotAskCredentialsOnBoot = true; 4499 saveSettingsLocked(UserHandle.USER_SYSTEM); 4500 } 4501 } 4502 } 4503 4504 @Override 4505 public boolean getDoNotAskCredentialsOnBoot() { 4506 mContext.enforceCallingOrSelfPermission( 4507 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 4508 synchronized (this) { 4509 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4510 return policyData.doNotAskCredentialsOnBoot; 4511 } 4512 } 4513 4514 @Override 4515 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 4516 if (!mHasFeature) { 4517 return; 4518 } 4519 Preconditions.checkNotNull(who, "ComponentName is null"); 4520 final int userHandle = mInjector.userHandleGetCallingUserId(); 4521 synchronized (this) { 4522 ActiveAdmin ap = getActiveAdminForCallerLocked( 4523 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4524 if (ap.maximumTimeToUnlock != timeMs) { 4525 ap.maximumTimeToUnlock = timeMs; 4526 saveSettingsLocked(userHandle); 4527 updateMaximumTimeToLockLocked(userHandle); 4528 } 4529 } 4530 } 4531 4532 void updateMaximumTimeToLockLocked(int userHandle) { 4533 // Calculate the min timeout for all profiles - including the ones with a separate 4534 // challenge. Ideally if the timeout only affected the profile challenge we'd lock that 4535 // challenge only and keep the screen on. However there is no easy way of doing that at the 4536 // moment so we set the screen off timeout regardless of whether it affects the parent user 4537 // or the profile challenge only. 4538 long timeMs = Long.MAX_VALUE; 4539 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 4540 for (int profileId : profileIds) { 4541 DevicePolicyData policy = getUserDataUnchecked(profileId); 4542 final int N = policy.mAdminList.size(); 4543 for (int i = 0; i < N; i++) { 4544 ActiveAdmin admin = policy.mAdminList.get(i); 4545 if (admin.maximumTimeToUnlock > 0 4546 && timeMs > admin.maximumTimeToUnlock) { 4547 timeMs = admin.maximumTimeToUnlock; 4548 } 4549 // If userInfo.id is a managed profile, we also need to look at 4550 // the policies set on the parent. 4551 if (admin.hasParentActiveAdmin()) { 4552 final ActiveAdmin parentAdmin = admin.getParentActiveAdmin(); 4553 if (parentAdmin.maximumTimeToUnlock > 0 4554 && timeMs > parentAdmin.maximumTimeToUnlock) { 4555 timeMs = parentAdmin.maximumTimeToUnlock; 4556 } 4557 } 4558 } 4559 } 4560 4561 // We only store the last maximum time to lock on the parent profile. So if calling from a 4562 // managed profile, retrieve the policy for the parent. 4563 DevicePolicyData policy = getUserDataUnchecked(getProfileParentId(userHandle)); 4564 if (policy.mLastMaximumTimeToLock == timeMs) { 4565 return; 4566 } 4567 policy.mLastMaximumTimeToLock = timeMs; 4568 4569 final long ident = mInjector.binderClearCallingIdentity(); 4570 try { 4571 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 4572 // Make sure KEEP_SCREEN_ON is disabled, since that 4573 // would allow bypassing of the maximum time to lock. 4574 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 4575 } 4576 4577 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4578 (int) Math.min(policy.mLastMaximumTimeToLock, Integer.MAX_VALUE)); 4579 } finally { 4580 mInjector.binderRestoreCallingIdentity(ident); 4581 } 4582 } 4583 4584 @Override 4585 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 4586 if (!mHasFeature) { 4587 return 0; 4588 } 4589 enforceFullCrossUsersPermission(userHandle); 4590 synchronized (this) { 4591 if (who != null) { 4592 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4593 return admin != null ? admin.maximumTimeToUnlock : 0; 4594 } 4595 // Return the strictest policy across all participating admins. 4596 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4597 userHandle, parent); 4598 return getMaximumTimeToLockPolicyFromAdmins(admins); 4599 } 4600 } 4601 4602 @Override 4603 public long getMaximumTimeToLockForUserAndProfiles(int userHandle) { 4604 if (!mHasFeature) { 4605 return 0; 4606 } 4607 enforceFullCrossUsersPermission(userHandle); 4608 synchronized (this) { 4609 // All admins for this user. 4610 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 4611 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4612 DevicePolicyData policy = getUserData(userInfo.id); 4613 admins.addAll(policy.mAdminList); 4614 // If it is a managed profile, it may have parent active admins 4615 if (userInfo.isManagedProfile()) { 4616 for (ActiveAdmin admin : policy.mAdminList) { 4617 if (admin.hasParentActiveAdmin()) { 4618 admins.add(admin.getParentActiveAdmin()); 4619 } 4620 } 4621 } 4622 } 4623 return getMaximumTimeToLockPolicyFromAdmins(admins); 4624 } 4625 } 4626 4627 private long getMaximumTimeToLockPolicyFromAdmins(List<ActiveAdmin> admins) { 4628 long time = 0; 4629 final int N = admins.size(); 4630 for (int i = 0; i < N; i++) { 4631 ActiveAdmin admin = admins.get(i); 4632 if (time == 0) { 4633 time = admin.maximumTimeToUnlock; 4634 } else if (admin.maximumTimeToUnlock != 0 4635 && time > admin.maximumTimeToUnlock) { 4636 time = admin.maximumTimeToUnlock; 4637 } 4638 } 4639 return time; 4640 } 4641 4642 @Override 4643 public void setRequiredStrongAuthTimeout(ComponentName who, long timeoutMs, 4644 boolean parent) { 4645 if (!mHasFeature) { 4646 return; 4647 } 4648 Preconditions.checkNotNull(who, "ComponentName is null"); 4649 Preconditions.checkArgument(timeoutMs >= 0, "Timeout must not be a negative number."); 4650 // timeoutMs with value 0 means that the admin doesn't participate 4651 // timeoutMs is clamped to the interval in case the internal constants change in the future 4652 final long minimumStrongAuthTimeout = getMinimumStrongAuthTimeoutMs(); 4653 if (timeoutMs != 0 && timeoutMs < minimumStrongAuthTimeout) { 4654 timeoutMs = minimumStrongAuthTimeout; 4655 } 4656 if (timeoutMs > DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 4657 timeoutMs = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4658 } 4659 4660 final int userHandle = mInjector.userHandleGetCallingUserId(); 4661 synchronized (this) { 4662 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4663 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 4664 if (ap.strongAuthUnlockTimeout != timeoutMs) { 4665 ap.strongAuthUnlockTimeout = timeoutMs; 4666 saveSettingsLocked(userHandle); 4667 } 4668 } 4669 } 4670 4671 /** 4672 * Return a single admin's strong auth unlock timeout or minimum value (strictest) of all 4673 * admins if who is null. 4674 * Returns 0 if not configured for the provided admin. 4675 */ 4676 @Override 4677 public long getRequiredStrongAuthTimeout(ComponentName who, int userId, boolean parent) { 4678 if (!mHasFeature) { 4679 return DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4680 } 4681 enforceFullCrossUsersPermission(userId); 4682 synchronized (this) { 4683 if (who != null) { 4684 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId, parent); 4685 return admin != null ? admin.strongAuthUnlockTimeout : 0; 4686 } 4687 4688 // Return the strictest policy across all participating admins. 4689 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userId, parent); 4690 4691 long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4692 for (int i = 0; i < admins.size(); i++) { 4693 final long timeout = admins.get(i).strongAuthUnlockTimeout; 4694 if (timeout != 0) { // take only participating admins into account 4695 strongAuthUnlockTimeout = Math.min(timeout, strongAuthUnlockTimeout); 4696 } 4697 } 4698 return Math.max(strongAuthUnlockTimeout, getMinimumStrongAuthTimeoutMs()); 4699 } 4700 } 4701 4702 private long getMinimumStrongAuthTimeoutMs() { 4703 if (!mInjector.isBuildDebuggable()) { 4704 return MINIMUM_STRONG_AUTH_TIMEOUT_MS; 4705 } 4706 // ideally the property was named persist.sys.min_strong_auth_timeout, but system property 4707 // name cannot be longer than 31 characters 4708 return Math.min(mInjector.systemPropertiesGetLong("persist.sys.min_str_auth_timeo", 4709 MINIMUM_STRONG_AUTH_TIMEOUT_MS), 4710 MINIMUM_STRONG_AUTH_TIMEOUT_MS); 4711 } 4712 4713 @Override 4714 public void lockNow(int flags, boolean parent) { 4715 if (!mHasFeature) { 4716 return; 4717 } 4718 4719 final int callingUserId = mInjector.userHandleGetCallingUserId(); 4720 synchronized (this) { 4721 // This API can only be called by an active device admin, 4722 // so try to retrieve it to check that the caller is one. 4723 final ActiveAdmin admin = getActiveAdminForCallerLocked( 4724 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4725 4726 final long ident = mInjector.binderClearCallingIdentity(); 4727 try { 4728 // Evict key 4729 if ((flags & DevicePolicyManager.FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY) != 0) { 4730 enforceManagedProfile( 4731 callingUserId, "set FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY"); 4732 if (!isProfileOwner(admin.info.getComponent(), callingUserId)) { 4733 throw new SecurityException("Only profile owner admins can set " 4734 + "FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY"); 4735 } 4736 if (parent) { 4737 throw new IllegalArgumentException( 4738 "Cannot set FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY for the parent"); 4739 } 4740 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 4741 throw new UnsupportedOperationException( 4742 "FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY only applies to FBE devices"); 4743 } 4744 mUserManager.evictCredentialEncryptionKey(callingUserId); 4745 } 4746 4747 // Lock all users unless this is a managed profile with a separate challenge 4748 final int userToLock = (parent || !isSeparateProfileChallengeEnabled(callingUserId) 4749 ? UserHandle.USER_ALL : callingUserId); 4750 mLockPatternUtils.requireStrongAuth( 4751 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 4752 4753 // Require authentication for the device or profile 4754 if (userToLock == UserHandle.USER_ALL) { 4755 // Power off the display 4756 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 4757 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 4758 mInjector.getIWindowManager().lockNow(null); 4759 } else { 4760 mInjector.getTrustManager().setDeviceLockedForUser(userToLock, true); 4761 } 4762 } catch (RemoteException e) { 4763 } finally { 4764 mInjector.binderRestoreCallingIdentity(ident); 4765 } 4766 } 4767 } 4768 4769 @Override 4770 public void enforceCanManageCaCerts(ComponentName who, String callerPackage) { 4771 if (who == null) { 4772 if (!isCallerDelegate(callerPackage, DELEGATION_CERT_INSTALL)) { 4773 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 4774 } 4775 } else { 4776 enforceProfileOrDeviceOwner(who); 4777 } 4778 } 4779 4780 private void enforceProfileOrDeviceOwner(ComponentName who) { 4781 synchronized (this) { 4782 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4783 } 4784 } 4785 4786 @Override 4787 public boolean approveCaCert(String alias, int userId, boolean approval) { 4788 enforceManageUsers(); 4789 synchronized (this) { 4790 Set<String> certs = getUserData(userId).mAcceptedCaCertificates; 4791 boolean changed = (approval ? certs.add(alias) : certs.remove(alias)); 4792 if (!changed) { 4793 return false; 4794 } 4795 saveSettingsLocked(userId); 4796 } 4797 mCertificateMonitor.onCertificateApprovalsChanged(userId); 4798 return true; 4799 } 4800 4801 @Override 4802 public boolean isCaCertApproved(String alias, int userId) { 4803 enforceManageUsers(); 4804 synchronized (this) { 4805 return getUserData(userId).mAcceptedCaCertificates.contains(alias); 4806 } 4807 } 4808 4809 private void removeCaApprovalsIfNeeded(int userId) { 4810 for (UserInfo userInfo : mUserManager.getProfiles(userId)) { 4811 boolean isSecure = mLockPatternUtils.isSecure(userInfo.id); 4812 if (userInfo.isManagedProfile()){ 4813 isSecure |= mLockPatternUtils.isSecure(getProfileParentId(userInfo.id)); 4814 } 4815 if (!isSecure) { 4816 synchronized (this) { 4817 getUserData(userInfo.id).mAcceptedCaCertificates.clear(); 4818 saveSettingsLocked(userInfo.id); 4819 } 4820 mCertificateMonitor.onCertificateApprovalsChanged(userId); 4821 } 4822 } 4823 } 4824 4825 @Override 4826 public boolean installCaCert(ComponentName admin, String callerPackage, byte[] certBuffer) 4827 throws RemoteException { 4828 if (!mHasFeature) { 4829 return false; 4830 } 4831 enforceCanManageCaCerts(admin, callerPackage); 4832 4833 final String alias; 4834 4835 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 4836 final long id = mInjector.binderClearCallingIdentity(); 4837 try { 4838 alias = mCertificateMonitor.installCaCert(userHandle, certBuffer); 4839 if (alias == null) { 4840 Log.w(LOG_TAG, "Problem installing cert"); 4841 return false; 4842 } 4843 } finally { 4844 mInjector.binderRestoreCallingIdentity(id); 4845 } 4846 4847 synchronized (this) { 4848 getUserData(userHandle.getIdentifier()).mOwnerInstalledCaCerts.add(alias); 4849 saveSettingsLocked(userHandle.getIdentifier()); 4850 } 4851 return true; 4852 } 4853 4854 @Override 4855 public void uninstallCaCerts(ComponentName admin, String callerPackage, String[] aliases) { 4856 if (!mHasFeature) { 4857 return; 4858 } 4859 enforceCanManageCaCerts(admin, callerPackage); 4860 4861 final int userId = mInjector.userHandleGetCallingUserId(); 4862 final long id = mInjector.binderClearCallingIdentity(); 4863 try { 4864 mCertificateMonitor.uninstallCaCerts(UserHandle.of(userId), aliases); 4865 } finally { 4866 mInjector.binderRestoreCallingIdentity(id); 4867 } 4868 4869 synchronized (this) { 4870 if (getUserData(userId).mOwnerInstalledCaCerts.removeAll(Arrays.asList(aliases))) { 4871 saveSettingsLocked(userId); 4872 } 4873 } 4874 } 4875 4876 @Override 4877 public boolean installKeyPair(ComponentName who, String callerPackage, byte[] privKey, 4878 byte[] cert, byte[] chain, String alias, boolean requestAccess) { 4879 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 4880 DELEGATION_CERT_INSTALL); 4881 4882 4883 final int callingUid = mInjector.binderGetCallingUid(); 4884 final long id = mInjector.binderClearCallingIdentity(); 4885 try { 4886 final KeyChainConnection keyChainConnection = 4887 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 4888 try { 4889 IKeyChainService keyChain = keyChainConnection.getService(); 4890 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) { 4891 return false; 4892 } 4893 if (requestAccess) { 4894 keyChain.setGrant(callingUid, alias, true); 4895 } 4896 return true; 4897 } catch (RemoteException e) { 4898 Log.e(LOG_TAG, "Installing certificate", e); 4899 } finally { 4900 keyChainConnection.close(); 4901 } 4902 } catch (InterruptedException e) { 4903 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 4904 Thread.currentThread().interrupt(); 4905 } finally { 4906 mInjector.binderRestoreCallingIdentity(id); 4907 } 4908 return false; 4909 } 4910 4911 @Override 4912 public boolean removeKeyPair(ComponentName who, String callerPackage, String alias) { 4913 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 4914 DELEGATION_CERT_INSTALL); 4915 4916 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4917 final long id = Binder.clearCallingIdentity(); 4918 try { 4919 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4920 try { 4921 IKeyChainService keyChain = keyChainConnection.getService(); 4922 return keyChain.removeKeyPair(alias); 4923 } catch (RemoteException e) { 4924 Log.e(LOG_TAG, "Removing keypair", e); 4925 } finally { 4926 keyChainConnection.close(); 4927 } 4928 } catch (InterruptedException e) { 4929 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 4930 Thread.currentThread().interrupt(); 4931 } finally { 4932 Binder.restoreCallingIdentity(id); 4933 } 4934 return false; 4935 } 4936 4937 @Override 4938 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 4939 final IBinder response) { 4940 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 4941 if (!isCallerWithSystemUid()) { 4942 return; 4943 } 4944 4945 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 4946 // If there is a profile owner, redirect to that; otherwise query the device owner. 4947 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 4948 if (aliasChooser == null && caller.isSystem()) { 4949 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 4950 if (deviceOwnerAdmin != null) { 4951 aliasChooser = deviceOwnerAdmin.info.getComponent(); 4952 } 4953 } 4954 if (aliasChooser == null) { 4955 sendPrivateKeyAliasResponse(null, response); 4956 return; 4957 } 4958 4959 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 4960 intent.setComponent(aliasChooser); 4961 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 4962 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 4963 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 4964 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 4965 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4966 4967 final long id = mInjector.binderClearCallingIdentity(); 4968 try { 4969 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 4970 @Override 4971 public void onReceive(Context context, Intent intent) { 4972 final String chosenAlias = getResultData(); 4973 sendPrivateKeyAliasResponse(chosenAlias, response); 4974 } 4975 }, null, Activity.RESULT_OK, null, null); 4976 } finally { 4977 mInjector.binderRestoreCallingIdentity(id); 4978 } 4979 } 4980 4981 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 4982 final IKeyChainAliasCallback keyChainAliasResponse = 4983 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 4984 // Send the response. It's OK to do this from the main thread because IKeyChainAliasCallback 4985 // is oneway, which means it won't block if the recipient lives in another process. 4986 try { 4987 keyChainAliasResponse.alias(alias); 4988 } catch (Exception e) { 4989 // Caller could throw RuntimeException or RemoteException back across processes. Catch 4990 // everything just to be sure. 4991 Log.e(LOG_TAG, "error while responding to callback", e); 4992 } 4993 } 4994 4995 /** 4996 * Determine whether DPMS should check if a delegate package is already installed before 4997 * granting it new delegations via {@link #setDelegatedScopes}. 4998 */ 4999 private static boolean shouldCheckIfDelegatePackageIsInstalled(String delegatePackage, 5000 int targetSdk, List<String> scopes) { 5001 // 1) Never skip is installed check from N. 5002 if (targetSdk >= Build.VERSION_CODES.N) { 5003 return true; 5004 } 5005 // 2) Skip if DELEGATION_CERT_INSTALL is the only scope being given. 5006 if (scopes.size() == 1 && scopes.get(0).equals(DELEGATION_CERT_INSTALL)) { 5007 return false; 5008 } 5009 // 3) Skip if all previously granted scopes are being cleared. 5010 if (scopes.isEmpty()) { 5011 return false; 5012 } 5013 // Otherwise it should check that delegatePackage is installed. 5014 return true; 5015 } 5016 5017 /** 5018 * Set the scopes of a device owner or profile owner delegate. 5019 * 5020 * @param who the device owner or profile owner. 5021 * @param delegatePackage the name of the delegate package. 5022 * @param scopes the list of delegation scopes to be given to the delegate package. 5023 */ 5024 @Override 5025 public void setDelegatedScopes(ComponentName who, String delegatePackage, 5026 List<String> scopes) throws SecurityException { 5027 Preconditions.checkNotNull(who, "ComponentName is null"); 5028 Preconditions.checkStringNotEmpty(delegatePackage, "Delegate package is null or empty"); 5029 Preconditions.checkCollectionElementsNotNull(scopes, "Scopes"); 5030 // Remove possible duplicates. 5031 scopes = new ArrayList(new ArraySet(scopes)); 5032 // Ensure given scopes are valid. 5033 if (scopes.retainAll(Arrays.asList(DELEGATIONS))) { 5034 throw new IllegalArgumentException("Unexpected delegation scopes"); 5035 } 5036 5037 // Retrieve the user ID of the calling process. 5038 final int userId = mInjector.userHandleGetCallingUserId(); 5039 synchronized (this) { 5040 // Ensure calling process is device/profile owner. 5041 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5042 // Ensure the delegate is installed (skip this for DELEGATION_CERT_INSTALL in pre-N). 5043 if (shouldCheckIfDelegatePackageIsInstalled(delegatePackage, 5044 getTargetSdk(who.getPackageName(), userId), scopes)) { 5045 // Throw when the delegate package is not installed. 5046 if (!isPackageInstalledForUser(delegatePackage, userId)) { 5047 throw new IllegalArgumentException("Package " + delegatePackage 5048 + " is not installed on the current user"); 5049 } 5050 } 5051 5052 // Set the new delegate in user policies. 5053 final DevicePolicyData policy = getUserData(userId); 5054 if (!scopes.isEmpty()) { 5055 policy.mDelegationMap.put(delegatePackage, new ArrayList<>(scopes)); 5056 } else { 5057 // Remove any delegation info if the given scopes list is empty. 5058 policy.mDelegationMap.remove(delegatePackage); 5059 } 5060 5061 // Notify delegate package of updates. 5062 final Intent intent = new Intent( 5063 DevicePolicyManager.ACTION_APPLICATION_DELEGATION_SCOPES_CHANGED); 5064 // Only call receivers registered with Context#registerReceiver (don’t wake delegate). 5065 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 5066 // Limit components this intent resolves to to the delegate package. 5067 intent.setPackage(delegatePackage); 5068 // Include the list of delegated scopes as an extra. 5069 intent.putStringArrayListExtra(DevicePolicyManager.EXTRA_DELEGATION_SCOPES, 5070 (ArrayList<String>) scopes); 5071 // Send the broadcast. 5072 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 5073 5074 // Persist updates. 5075 saveSettingsLocked(userId); 5076 } 5077 } 5078 5079 /** 5080 * Get the delegation scopes given to a delegate package by a device owner or profile owner. 5081 * 5082 * A DO/PO can get the scopes of any package. A non DO/PO package can get its own scopes by 5083 * passing in {@code null} as the {@code who} parameter and its own name as the 5084 * {@code delegatepackage}. 5085 * 5086 * @param who the device owner or profile owner, or {@code null} if the caller is 5087 * {@code delegatePackage}. 5088 * @param delegatePackage the name of the delegate package whose scopes are to be retrieved. 5089 * @return a list of the delegation scopes currently given to {@code delegatePackage}. 5090 */ 5091 @Override 5092 @NonNull 5093 public List<String> getDelegatedScopes(ComponentName who, 5094 String delegatePackage) throws SecurityException { 5095 Preconditions.checkNotNull(delegatePackage, "Delegate package is null"); 5096 5097 // Retrieve the user ID of the calling process. 5098 final int callingUid = mInjector.binderGetCallingUid(); 5099 final int userId = UserHandle.getUserId(callingUid); 5100 synchronized (this) { 5101 // Ensure calling process is device/profile owner. 5102 if (who != null) { 5103 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5104 // Or ensure calling process is delegatePackage itself. 5105 } else { 5106 int uid = 0; 5107 try { 5108 uid = mInjector.getPackageManager() 5109 .getPackageUidAsUser(delegatePackage, userId); 5110 } catch(NameNotFoundException e) { 5111 } 5112 if (uid != callingUid) { 5113 throw new SecurityException("Caller with uid " + callingUid + " is not " 5114 + delegatePackage); 5115 } 5116 } 5117 final DevicePolicyData policy = getUserData(userId); 5118 // Retrieve the scopes assigned to delegatePackage, or null if no scope was given. 5119 final List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5120 return scopes == null ? Collections.EMPTY_LIST : scopes; 5121 } 5122 } 5123 5124 /** 5125 * Get a list of packages that were given a specific delegation scopes by a device owner or 5126 * profile owner. 5127 * 5128 * @param who the device owner or profile owner. 5129 * @param scope the scope whose delegates are to be retrieved. 5130 * @return a list of the delegate packages currently given the {@code scope} delegation. 5131 */ 5132 @NonNull 5133 public List<String> getDelegatePackages(ComponentName who, String scope) 5134 throws SecurityException { 5135 Preconditions.checkNotNull(who, "ComponentName is null"); 5136 Preconditions.checkNotNull(scope, "Scope is null"); 5137 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5138 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5139 } 5140 5141 // Retrieve the user ID of the calling process. 5142 final int userId = mInjector.userHandleGetCallingUserId(); 5143 synchronized (this) { 5144 // Ensure calling process is device/profile owner. 5145 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5146 final DevicePolicyData policy = getUserData(userId); 5147 5148 // Create a list to hold the resulting delegate packages. 5149 final List<String> delegatePackagesWithScope = new ArrayList<>(); 5150 // Add all delegations containing scope to the result list. 5151 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5152 if (policy.mDelegationMap.valueAt(i).contains(scope)) { 5153 delegatePackagesWithScope.add(policy.mDelegationMap.keyAt(i)); 5154 } 5155 } 5156 return delegatePackagesWithScope; 5157 } 5158 } 5159 5160 /** 5161 * Check whether a caller application has been delegated a given scope via 5162 * {@link #setDelegatedScopes} to access privileged APIs on the behalf of a profile owner or 5163 * device owner. 5164 * <p> 5165 * This is done by checking that {@code callerPackage} was granted {@code scope} delegation and 5166 * then comparing the calling UID with the UID of {@code callerPackage} as reported by 5167 * {@link PackageManager#getPackageUidAsUser}. 5168 * 5169 * @param callerPackage the name of the package that is trying to invoke a function in the DPMS. 5170 * @param scope the delegation scope to be checked. 5171 * @return {@code true} if the calling process is a delegate of {@code scope}. 5172 */ 5173 private boolean isCallerDelegate(String callerPackage, String scope) { 5174 Preconditions.checkNotNull(callerPackage, "callerPackage is null"); 5175 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5176 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5177 } 5178 5179 // Retrieve the UID and user ID of the calling process. 5180 final int callingUid = mInjector.binderGetCallingUid(); 5181 final int userId = UserHandle.getUserId(callingUid); 5182 synchronized (this) { 5183 // Retrieve user policy data. 5184 final DevicePolicyData policy = getUserData(userId); 5185 // Retrieve the list of delegation scopes granted to callerPackage. 5186 final List<String> scopes = policy.mDelegationMap.get(callerPackage); 5187 // Check callingUid only if callerPackage has the required scope delegation. 5188 if (scopes != null && scopes.contains(scope)) { 5189 try { 5190 // Retrieve the expected UID for callerPackage. 5191 final int uid = mInjector.getPackageManager() 5192 .getPackageUidAsUser(callerPackage, userId); 5193 // Return true if the caller is actually callerPackage. 5194 return uid == callingUid; 5195 } catch (NameNotFoundException e) { 5196 // Ignore. 5197 } 5198 } 5199 return false; 5200 } 5201 } 5202 5203 /** 5204 * Throw a security exception if a ComponentName is given and it is not a device/profile owner 5205 * or if the calling process is not a delegate of the given scope. 5206 * 5207 * @param who the device owner of profile owner, or null if {@code callerPackage} is a 5208 * {@code scope} delegate. 5209 * @param callerPackage the name of the calling package. Required if {@code who} is 5210 * {@code null}. 5211 * @param reqPolicy the policy used in the API whose access permission is being checked. 5212 * @param scope the delegation scope corresponding to the API being checked. 5213 * @throws SecurityException if {@code who} is given and is not an owner for {@code reqPolicy}; 5214 * or when {@code who} is {@code null} and {@code callerPackage} is not a delegate 5215 * of {@code scope}. 5216 */ 5217 private void enforceCanManageScope(ComponentName who, String callerPackage, int reqPolicy, 5218 String scope) { 5219 // If a ComponentName is given ensure it is a device or profile owner according to policy. 5220 if (who != null) { 5221 synchronized (this) { 5222 getActiveAdminForCallerLocked(who, reqPolicy); 5223 } 5224 // If no ComponentName is given ensure calling process has scope delegation. 5225 } else if (!isCallerDelegate(callerPackage, scope)) { 5226 throw new SecurityException("Caller with uid " + mInjector.binderGetCallingUid() 5227 + " is not a delegate of scope " + scope + "."); 5228 } 5229 } 5230 5231 /** 5232 * Helper function to preserve delegation behavior pre-O when using the deprecated functions 5233 * {@code #setCertInstallerPackage} and {@code #setApplicationRestrictionsManagingPackage}. 5234 */ 5235 private void setDelegatedScopePreO(ComponentName who, 5236 String delegatePackage, String scope) { 5237 Preconditions.checkNotNull(who, "ComponentName is null"); 5238 5239 final int userId = mInjector.userHandleGetCallingUserId(); 5240 synchronized(this) { 5241 // Ensure calling process is device/profile owner. 5242 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5243 final DevicePolicyData policy = getUserData(userId); 5244 5245 if (delegatePackage != null) { 5246 // Set package as a delegate for scope if it is not already one. 5247 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5248 if (scopes == null) { 5249 scopes = new ArrayList<>(); 5250 } 5251 if (!scopes.contains(scope)) { 5252 scopes.add(scope); 5253 setDelegatedScopes(who, delegatePackage, scopes); 5254 } 5255 } 5256 5257 // Clear any existing scope delegates. 5258 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5259 final String currentPackage = policy.mDelegationMap.keyAt(i); 5260 final List<String> currentScopes = policy.mDelegationMap.valueAt(i); 5261 5262 if (!currentPackage.equals(delegatePackage) && currentScopes.contains(scope)) { 5263 final List<String> newScopes = new ArrayList(currentScopes); 5264 newScopes.remove(scope); 5265 setDelegatedScopes(who, currentPackage, newScopes); 5266 } 5267 } 5268 } 5269 } 5270 5271 @Override 5272 public void setCertInstallerPackage(ComponentName who, String installerPackage) 5273 throws SecurityException { 5274 setDelegatedScopePreO(who, installerPackage, DELEGATION_CERT_INSTALL); 5275 } 5276 5277 @Override 5278 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 5279 final List<String> delegatePackages = getDelegatePackages(who, DELEGATION_CERT_INSTALL); 5280 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 5281 } 5282 5283 /** 5284 * @return {@code true} if the package is installed and set as always-on, {@code false} if it is 5285 * not installed and therefore not available. 5286 * 5287 * @throws SecurityException if the caller is not a profile or device owner. 5288 * @throws UnsupportedOperationException if the package does not support being set as always-on. 5289 */ 5290 @Override 5291 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage, boolean lockdown) 5292 throws SecurityException { 5293 enforceProfileOrDeviceOwner(admin); 5294 5295 final int userId = mInjector.userHandleGetCallingUserId(); 5296 final long token = mInjector.binderClearCallingIdentity(); 5297 try { 5298 if (vpnPackage != null && !isPackageInstalledForUser(vpnPackage, userId)) { 5299 return false; 5300 } 5301 ConnectivityManager connectivityManager = (ConnectivityManager) 5302 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5303 if (!connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage, lockdown)) { 5304 throw new UnsupportedOperationException(); 5305 } 5306 } finally { 5307 mInjector.binderRestoreCallingIdentity(token); 5308 } 5309 return true; 5310 } 5311 5312 @Override 5313 public String getAlwaysOnVpnPackage(ComponentName admin) 5314 throws SecurityException { 5315 enforceProfileOrDeviceOwner(admin); 5316 5317 final int userId = mInjector.userHandleGetCallingUserId(); 5318 final long token = mInjector.binderClearCallingIdentity(); 5319 try{ 5320 ConnectivityManager connectivityManager = (ConnectivityManager) 5321 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5322 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 5323 } finally { 5324 mInjector.binderRestoreCallingIdentity(token); 5325 } 5326 } 5327 5328 private void forceWipeDeviceNoLock(boolean wipeExtRequested, String reason, boolean wipeEuicc) { 5329 wtfIfInLock(); 5330 5331 if (wipeExtRequested) { 5332 StorageManager sm = (StorageManager) mContext.getSystemService( 5333 Context.STORAGE_SERVICE); 5334 sm.wipeAdoptableDisks(); 5335 } 5336 try { 5337 mInjector.recoverySystemRebootWipeUserData( 5338 /*shutdown=*/ false, reason, /*force=*/ true, /*wipeEuicc=*/ wipeEuicc); 5339 } catch (IOException | SecurityException e) { 5340 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 5341 } 5342 } 5343 5344 private void forceWipeUser(int userId) { 5345 try { 5346 IActivityManager am = mInjector.getIActivityManager(); 5347 if (am.getCurrentUser().id == userId) { 5348 am.switchUser(UserHandle.USER_SYSTEM); 5349 } 5350 5351 boolean userRemoved = mUserManagerInternal.removeUserEvenWhenDisallowed(userId); 5352 if (!userRemoved) { 5353 Slog.w(LOG_TAG, "Couldn't remove user " + userId); 5354 } else if (isManagedProfile(userId)) { 5355 sendWipeProfileNotification(); 5356 } 5357 } catch (RemoteException re) { 5358 // Shouldn't happen 5359 } 5360 } 5361 5362 @Override 5363 public void wipeData(int flags) { 5364 if (!mHasFeature) { 5365 return; 5366 } 5367 enforceFullCrossUsersPermission(mInjector.userHandleGetCallingUserId()); 5368 5369 final ActiveAdmin admin; 5370 synchronized (this) { 5371 admin = getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_WIPE_DATA); 5372 } 5373 String reason = "DevicePolicyManager.wipeData() from " 5374 + admin.info.getComponent().flattenToShortString(); 5375 wipeDataNoLock( 5376 admin.info.getComponent(), flags, reason, admin.getUserHandle().getIdentifier()); 5377 } 5378 5379 private void wipeDataNoLock(ComponentName admin, int flags, String reason, int userId) { 5380 wtfIfInLock(); 5381 5382 long ident = mInjector.binderClearCallingIdentity(); 5383 try { 5384 // First check whether the admin is allowed to wipe the device/user/profile. 5385 final String restriction; 5386 if (userId == UserHandle.USER_SYSTEM) { 5387 restriction = UserManager.DISALLOW_FACTORY_RESET; 5388 } else if (isManagedProfile(userId)) { 5389 restriction = UserManager.DISALLOW_REMOVE_MANAGED_PROFILE; 5390 } else { 5391 restriction = UserManager.DISALLOW_REMOVE_USER; 5392 } 5393 if (isAdminAffectedByRestriction(admin, restriction, userId)) { 5394 throw new SecurityException("Cannot wipe data. " + restriction 5395 + " restriction is set for user " + userId); 5396 } 5397 5398 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 5399 if (!isDeviceOwner(admin, userId)) { 5400 throw new SecurityException( 5401 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 5402 } 5403 PersistentDataBlockManager manager = (PersistentDataBlockManager) 5404 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 5405 if (manager != null) { 5406 manager.wipe(); 5407 } 5408 } 5409 5410 // TODO If split user is enabled and the device owner is set in the primary user 5411 // (rather than system), we should probably trigger factory reset. Current code just 5412 // removes that user (but still clears FRP...) 5413 if (userId == UserHandle.USER_SYSTEM) { 5414 forceWipeDeviceNoLock(/*wipeExtRequested=*/ (flags & WIPE_EXTERNAL_STORAGE) != 0, 5415 reason, /*wipeEuicc=*/ (flags & WIPE_EUICC) != 0); 5416 } else { 5417 forceWipeUser(userId); 5418 } 5419 } finally { 5420 mInjector.binderRestoreCallingIdentity(ident); 5421 } 5422 } 5423 5424 private void sendWipeProfileNotification() { 5425 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 5426 Notification notification = 5427 new Notification.Builder(mContext, SystemNotificationChannels.DEVICE_ADMIN) 5428 .setSmallIcon(android.R.drawable.stat_sys_warning) 5429 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 5430 .setContentText(contentText) 5431 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 5432 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 5433 .build(); 5434 mInjector.getNotificationManager().notify(SystemMessage.NOTE_PROFILE_WIPED, notification); 5435 } 5436 5437 private void clearWipeProfileNotification() { 5438 mInjector.getNotificationManager().cancel(SystemMessage.NOTE_PROFILE_WIPED); 5439 } 5440 5441 @Override 5442 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 5443 if (!mHasFeature) { 5444 return; 5445 } 5446 enforceFullCrossUsersPermission(userHandle); 5447 mContext.enforceCallingOrSelfPermission( 5448 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5449 5450 synchronized (this) { 5451 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 5452 if (admin == null) { 5453 result.sendResult(null); 5454 return; 5455 } 5456 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 5457 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 5458 intent.setComponent(admin.info.getComponent()); 5459 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 5460 null, new BroadcastReceiver() { 5461 @Override 5462 public void onReceive(Context context, Intent intent) { 5463 result.sendResult(getResultExtras(false)); 5464 } 5465 }, null, Activity.RESULT_OK, null, null); 5466 } 5467 } 5468 5469 /** 5470 * Notify DPMS regarding the metric of the current password. This happens when the user changes 5471 * the password, but also when the user just unlocks the keyguard. In comparison, 5472 * reportPasswordChanged() is only called when the user changes the password. 5473 */ 5474 @Override 5475 public void setActivePasswordState(PasswordMetrics metrics, int userHandle) { 5476 if (!mHasFeature) { 5477 return; 5478 } 5479 enforceFullCrossUsersPermission(userHandle); 5480 mContext.enforceCallingOrSelfPermission( 5481 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5482 5483 // If the managed profile doesn't have a separate password, set the metrics to default 5484 if (isManagedProfile(userHandle) && !isSeparateProfileChallengeEnabled(userHandle)) { 5485 metrics = new PasswordMetrics(); 5486 } 5487 5488 validateQualityConstant(metrics.quality); 5489 DevicePolicyData policy = getUserData(userHandle); 5490 synchronized (this) { 5491 policy.mActivePasswordMetrics = metrics; 5492 policy.mPasswordStateHasBeenSetSinceBoot = true; 5493 } 5494 } 5495 5496 @Override 5497 public void reportPasswordChanged(@UserIdInt int userId) { 5498 if (!mHasFeature) { 5499 return; 5500 } 5501 enforceFullCrossUsersPermission(userId); 5502 5503 // Managed Profile password can only be changed when it has a separate challenge. 5504 if (!isSeparateProfileChallengeEnabled(userId)) { 5505 enforceNotManagedProfile(userId, "set the active password"); 5506 } 5507 5508 mContext.enforceCallingOrSelfPermission( 5509 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5510 5511 DevicePolicyData policy = getUserData(userId); 5512 5513 long ident = mInjector.binderClearCallingIdentity(); 5514 try { 5515 synchronized (this) { 5516 policy.mFailedPasswordAttempts = 0; 5517 updatePasswordValidityCheckpointLocked(userId); 5518 saveSettingsLocked(userId); 5519 updatePasswordExpirationsLocked(userId); 5520 setExpirationAlarmCheckLocked(mContext, userId, /* parent */ false); 5521 5522 // Send a broadcast to each profile using this password as its primary unlock. 5523 sendAdminCommandForLockscreenPoliciesLocked( 5524 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 5525 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userId); 5526 } 5527 removeCaApprovalsIfNeeded(userId); 5528 } finally { 5529 mInjector.binderRestoreCallingIdentity(ident); 5530 } 5531 } 5532 5533 /** 5534 * Called any time the device password is updated. Resets all password expiration clocks. 5535 */ 5536 private void updatePasswordExpirationsLocked(int userHandle) { 5537 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 5538 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 5539 userHandle, /* parent */ false); 5540 final int N = admins.size(); 5541 for (int i = 0; i < N; i++) { 5542 ActiveAdmin admin = admins.get(i); 5543 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 5544 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 5545 long timeout = admin.passwordExpirationTimeout; 5546 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 5547 admin.passwordExpirationDate = expiration; 5548 } 5549 } 5550 for (int affectedUserId : affectedUserIds) { 5551 saveSettingsLocked(affectedUserId); 5552 } 5553 } 5554 5555 @Override 5556 public void reportFailedPasswordAttempt(int userHandle) { 5557 enforceFullCrossUsersPermission(userHandle); 5558 if (!isSeparateProfileChallengeEnabled(userHandle)) { 5559 enforceNotManagedProfile(userHandle, 5560 "report failed password attempt if separate profile challenge is not in place"); 5561 } 5562 mContext.enforceCallingOrSelfPermission( 5563 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5564 5565 boolean wipeData = false; 5566 ActiveAdmin strictestAdmin = null; 5567 final long ident = mInjector.binderClearCallingIdentity(); 5568 try { 5569 synchronized (this) { 5570 DevicePolicyData policy = getUserData(userHandle); 5571 policy.mFailedPasswordAttempts++; 5572 saveSettingsLocked(userHandle); 5573 if (mHasFeature) { 5574 strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 5575 userHandle, /* parent */ false); 5576 int max = strictestAdmin != null 5577 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 5578 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 5579 wipeData = true; 5580 } 5581 5582 sendAdminCommandForLockscreenPoliciesLocked( 5583 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 5584 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 5585 } 5586 } 5587 } finally { 5588 mInjector.binderRestoreCallingIdentity(ident); 5589 } 5590 5591 if (wipeData && strictestAdmin != null) { 5592 final int userId = strictestAdmin.getUserHandle().getIdentifier(); 5593 Slog.i(LOG_TAG, "Max failed password attempts policy reached for admin: " 5594 + strictestAdmin.info.getComponent().flattenToShortString() 5595 + ". Calling wipeData for user " + userId); 5596 5597 // Attempt to wipe the device/user/profile associated with the admin, as if the 5598 // admin had called wipeData(). That way we can check whether the admin is actually 5599 // allowed to wipe the device (e.g. a regular device admin shouldn't be able to wipe the 5600 // device if the device owner has set DISALLOW_FACTORY_RESET, but the DO should be 5601 // able to do so). 5602 // IMPORTANT: Call without holding the lock to prevent deadlock. 5603 try { 5604 wipeDataNoLock(strictestAdmin.info.getComponent(), 5605 /*flags=*/ 0, 5606 /*reason=*/ "reportFailedPasswordAttempt()", 5607 userId); 5608 } catch (SecurityException e) { 5609 Slog.w(LOG_TAG, "Failed to wipe user " + userId 5610 + " after max failed password attempts reached.", e); 5611 } 5612 } 5613 5614 if (mInjector.securityLogIsLoggingEnabled()) { 5615 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 5616 /*method strength*/ 1); 5617 } 5618 } 5619 5620 @Override 5621 public void reportSuccessfulPasswordAttempt(int userHandle) { 5622 enforceFullCrossUsersPermission(userHandle); 5623 mContext.enforceCallingOrSelfPermission( 5624 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5625 5626 synchronized (this) { 5627 DevicePolicyData policy = getUserData(userHandle); 5628 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 5629 long ident = mInjector.binderClearCallingIdentity(); 5630 try { 5631 policy.mFailedPasswordAttempts = 0; 5632 policy.mPasswordOwner = -1; 5633 saveSettingsLocked(userHandle); 5634 if (mHasFeature) { 5635 sendAdminCommandForLockscreenPoliciesLocked( 5636 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 5637 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 5638 } 5639 } finally { 5640 mInjector.binderRestoreCallingIdentity(ident); 5641 } 5642 } 5643 } 5644 5645 if (mInjector.securityLogIsLoggingEnabled()) { 5646 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5647 /*method strength*/ 1); 5648 } 5649 } 5650 5651 @Override 5652 public void reportFailedFingerprintAttempt(int userHandle) { 5653 enforceFullCrossUsersPermission(userHandle); 5654 mContext.enforceCallingOrSelfPermission( 5655 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5656 if (mInjector.securityLogIsLoggingEnabled()) { 5657 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 5658 /*method strength*/ 0); 5659 } 5660 } 5661 5662 @Override 5663 public void reportSuccessfulFingerprintAttempt(int userHandle) { 5664 enforceFullCrossUsersPermission(userHandle); 5665 mContext.enforceCallingOrSelfPermission( 5666 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5667 if (mInjector.securityLogIsLoggingEnabled()) { 5668 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5669 /*method strength*/ 0); 5670 } 5671 } 5672 5673 @Override 5674 public void reportKeyguardDismissed(int userHandle) { 5675 enforceFullCrossUsersPermission(userHandle); 5676 mContext.enforceCallingOrSelfPermission( 5677 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5678 5679 if (mInjector.securityLogIsLoggingEnabled()) { 5680 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 5681 } 5682 } 5683 5684 @Override 5685 public void reportKeyguardSecured(int userHandle) { 5686 enforceFullCrossUsersPermission(userHandle); 5687 mContext.enforceCallingOrSelfPermission( 5688 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5689 5690 if (mInjector.securityLogIsLoggingEnabled()) { 5691 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 5692 } 5693 } 5694 5695 @Override 5696 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 5697 String exclusionList) { 5698 if (!mHasFeature) { 5699 return null; 5700 } 5701 synchronized(this) { 5702 Preconditions.checkNotNull(who, "ComponentName is null"); 5703 5704 // Only check if system user has set global proxy. We don't allow other users to set it. 5705 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5706 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5707 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 5708 5709 // Scan through active admins and find if anyone has already 5710 // set the global proxy. 5711 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 5712 for (ComponentName component : compSet) { 5713 ActiveAdmin ap = policy.mAdminMap.get(component); 5714 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 5715 // Another admin already sets the global proxy 5716 // Return it to the caller. 5717 return component; 5718 } 5719 } 5720 5721 // If the user is not system, don't set the global proxy. Fail silently. 5722 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 5723 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 5724 + UserHandle.getCallingUserId() + " is not permitted."); 5725 return null; 5726 } 5727 if (proxySpec == null) { 5728 admin.specifiesGlobalProxy = false; 5729 admin.globalProxySpec = null; 5730 admin.globalProxyExclusionList = null; 5731 } else { 5732 5733 admin.specifiesGlobalProxy = true; 5734 admin.globalProxySpec = proxySpec; 5735 admin.globalProxyExclusionList = exclusionList; 5736 } 5737 5738 // Reset the global proxy accordingly 5739 // Do this using system permissions, as apps cannot write to secure settings 5740 long origId = mInjector.binderClearCallingIdentity(); 5741 try { 5742 resetGlobalProxyLocked(policy); 5743 } finally { 5744 mInjector.binderRestoreCallingIdentity(origId); 5745 } 5746 return null; 5747 } 5748 } 5749 5750 @Override 5751 public ComponentName getGlobalProxyAdmin(int userHandle) { 5752 if (!mHasFeature) { 5753 return null; 5754 } 5755 enforceFullCrossUsersPermission(userHandle); 5756 synchronized(this) { 5757 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5758 // Scan through active admins and find if anyone has already 5759 // set the global proxy. 5760 final int N = policy.mAdminList.size(); 5761 for (int i = 0; i < N; i++) { 5762 ActiveAdmin ap = policy.mAdminList.get(i); 5763 if (ap.specifiesGlobalProxy) { 5764 // Device admin sets the global proxy 5765 // Return it to the caller. 5766 return ap.info.getComponent(); 5767 } 5768 } 5769 } 5770 // No device admin sets the global proxy. 5771 return null; 5772 } 5773 5774 @Override 5775 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 5776 synchronized (this) { 5777 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5778 } 5779 long token = mInjector.binderClearCallingIdentity(); 5780 try { 5781 ConnectivityManager connectivityManager = (ConnectivityManager) 5782 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5783 connectivityManager.setGlobalProxy(proxyInfo); 5784 } finally { 5785 mInjector.binderRestoreCallingIdentity(token); 5786 } 5787 } 5788 5789 private void resetGlobalProxyLocked(DevicePolicyData policy) { 5790 final int N = policy.mAdminList.size(); 5791 for (int i = 0; i < N; i++) { 5792 ActiveAdmin ap = policy.mAdminList.get(i); 5793 if (ap.specifiesGlobalProxy) { 5794 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 5795 return; 5796 } 5797 } 5798 // No device admins defining global proxies - reset global proxy settings to none 5799 saveGlobalProxyLocked(null, null); 5800 } 5801 5802 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 5803 if (exclusionList == null) { 5804 exclusionList = ""; 5805 } 5806 if (proxySpec == null) { 5807 proxySpec = ""; 5808 } 5809 // Remove white spaces 5810 proxySpec = proxySpec.trim(); 5811 String data[] = proxySpec.split(":"); 5812 int proxyPort = 8080; 5813 if (data.length > 1) { 5814 try { 5815 proxyPort = Integer.parseInt(data[1]); 5816 } catch (NumberFormatException e) {} 5817 } 5818 exclusionList = exclusionList.trim(); 5819 5820 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 5821 if (!proxyProperties.isValid()) { 5822 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 5823 return; 5824 } 5825 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 5826 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 5827 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 5828 exclusionList); 5829 } 5830 5831 /** 5832 * Set the storage encryption request for a single admin. Returns the new total request 5833 * status (for all admins). 5834 */ 5835 @Override 5836 public int setStorageEncryption(ComponentName who, boolean encrypt) { 5837 if (!mHasFeature) { 5838 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5839 } 5840 Preconditions.checkNotNull(who, "ComponentName is null"); 5841 final int userHandle = UserHandle.getCallingUserId(); 5842 synchronized (this) { 5843 // Check for permissions 5844 // Only system user can set storage encryption 5845 if (userHandle != UserHandle.USER_SYSTEM) { 5846 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 5847 + UserHandle.getCallingUserId() + " is not permitted."); 5848 return 0; 5849 } 5850 5851 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5852 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 5853 5854 // Quick exit: If the filesystem does not support encryption, we can exit early. 5855 if (!isEncryptionSupported()) { 5856 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5857 } 5858 5859 // (1) Record the value for the admin so it's sticky 5860 if (ap.encryptionRequested != encrypt) { 5861 ap.encryptionRequested = encrypt; 5862 saveSettingsLocked(userHandle); 5863 } 5864 5865 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5866 // (2) Compute "max" for all admins 5867 boolean newRequested = false; 5868 final int N = policy.mAdminList.size(); 5869 for (int i = 0; i < N; i++) { 5870 newRequested |= policy.mAdminList.get(i).encryptionRequested; 5871 } 5872 5873 // Notify OS of new request 5874 setEncryptionRequested(newRequested); 5875 5876 // Return the new global request status 5877 return newRequested 5878 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 5879 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5880 } 5881 } 5882 5883 /** 5884 * Get the current storage encryption request status for a given admin, or aggregate of all 5885 * active admins. 5886 */ 5887 @Override 5888 public boolean getStorageEncryption(ComponentName who, int userHandle) { 5889 if (!mHasFeature) { 5890 return false; 5891 } 5892 enforceFullCrossUsersPermission(userHandle); 5893 synchronized (this) { 5894 // Check for permissions if a particular caller is specified 5895 if (who != null) { 5896 // When checking for a single caller, status is based on caller's request 5897 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 5898 return ap != null ? ap.encryptionRequested : false; 5899 } 5900 5901 // If no particular caller is specified, return the aggregate set of requests. 5902 // This is short circuited by returning true on the first hit. 5903 DevicePolicyData policy = getUserData(userHandle); 5904 final int N = policy.mAdminList.size(); 5905 for (int i = 0; i < N; i++) { 5906 if (policy.mAdminList.get(i).encryptionRequested) { 5907 return true; 5908 } 5909 } 5910 return false; 5911 } 5912 } 5913 5914 /** 5915 * Get the current encryption status of the device. 5916 */ 5917 @Override 5918 public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) { 5919 if (!mHasFeature) { 5920 // Ok to return current status. 5921 } 5922 enforceFullCrossUsersPermission(userHandle); 5923 5924 // It's not critical here, but let's make sure the package name is correct, in case 5925 // we start using it for different purposes. 5926 ensureCallerPackage(callerPackage); 5927 5928 final ApplicationInfo ai; 5929 try { 5930 ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle); 5931 } catch (RemoteException e) { 5932 throw new SecurityException(e); 5933 } 5934 5935 boolean legacyApp = false; 5936 if (ai.targetSdkVersion <= Build.VERSION_CODES.M) { 5937 legacyApp = true; 5938 } 5939 5940 final int rawStatus = getEncryptionStatus(); 5941 if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) { 5942 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5943 } 5944 return rawStatus; 5945 } 5946 5947 /** 5948 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 5949 */ 5950 private boolean isEncryptionSupported() { 5951 // Note, this can be implemented as 5952 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5953 // But is provided as a separate internal method if there's a faster way to do a 5954 // simple check for supported-or-not. 5955 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5956 } 5957 5958 /** 5959 * Hook to low-levels: Reporting the current status of encryption. 5960 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 5961 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 5962 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, 5963 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or 5964 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 5965 */ 5966 private int getEncryptionStatus() { 5967 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 5968 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER; 5969 } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) { 5970 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5971 } else if (mInjector.storageManagerIsEncrypted()) { 5972 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 5973 } else if (mInjector.storageManagerIsEncryptable()) { 5974 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5975 } else { 5976 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5977 } 5978 } 5979 5980 /** 5981 * Hook to low-levels: If needed, record the new admin setting for encryption. 5982 */ 5983 private void setEncryptionRequested(boolean encrypt) { 5984 } 5985 5986 /** 5987 * Set whether the screen capture is disabled for the user managed by the specified admin. 5988 */ 5989 @Override 5990 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 5991 if (!mHasFeature) { 5992 return; 5993 } 5994 Preconditions.checkNotNull(who, "ComponentName is null"); 5995 final int userHandle = UserHandle.getCallingUserId(); 5996 synchronized (this) { 5997 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5998 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5999 if (ap.disableScreenCapture != disabled) { 6000 ap.disableScreenCapture = disabled; 6001 saveSettingsLocked(userHandle); 6002 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 6003 } 6004 } 6005 } 6006 6007 /** 6008 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 6009 * active admin (if given admin is null). 6010 */ 6011 @Override 6012 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 6013 if (!mHasFeature) { 6014 return false; 6015 } 6016 synchronized (this) { 6017 if (who != null) { 6018 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6019 return (admin != null) ? admin.disableScreenCapture : false; 6020 } 6021 6022 DevicePolicyData policy = getUserData(userHandle); 6023 final int N = policy.mAdminList.size(); 6024 for (int i = 0; i < N; i++) { 6025 ActiveAdmin admin = policy.mAdminList.get(i); 6026 if (admin.disableScreenCapture) { 6027 return true; 6028 } 6029 } 6030 return false; 6031 } 6032 } 6033 6034 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 6035 final boolean disabled) { 6036 mHandler.post(new Runnable() { 6037 @Override 6038 public void run() { 6039 try { 6040 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 6041 } catch (RemoteException e) { 6042 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 6043 } 6044 } 6045 }); 6046 } 6047 6048 /** 6049 * Set whether auto time is required by the specified admin (must be device or profile owner). 6050 */ 6051 @Override 6052 public void setAutoTimeRequired(ComponentName who, boolean required) { 6053 if (!mHasFeature) { 6054 return; 6055 } 6056 Preconditions.checkNotNull(who, "ComponentName is null"); 6057 final int userHandle = UserHandle.getCallingUserId(); 6058 synchronized (this) { 6059 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6060 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6061 if (admin.requireAutoTime != required) { 6062 admin.requireAutoTime = required; 6063 saveSettingsLocked(userHandle); 6064 } 6065 } 6066 6067 // Turn AUTO_TIME on in settings if it is required 6068 if (required) { 6069 long ident = mInjector.binderClearCallingIdentity(); 6070 try { 6071 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 6072 } finally { 6073 mInjector.binderRestoreCallingIdentity(ident); 6074 } 6075 } 6076 } 6077 6078 /** 6079 * Returns whether or not auto time is required by the device owner or any profile owner. 6080 */ 6081 @Override 6082 public boolean getAutoTimeRequired() { 6083 if (!mHasFeature) { 6084 return false; 6085 } 6086 synchronized (this) { 6087 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6088 if (deviceOwner != null && deviceOwner.requireAutoTime) { 6089 // If the device owner enforces auto time, we don't need to check the PO's 6090 return true; 6091 } 6092 6093 // Now check to see if any profile owner on any user enforces auto time 6094 for (Integer userId : mOwners.getProfileOwnerKeys()) { 6095 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 6096 if (profileOwner != null && profileOwner.requireAutoTime) { 6097 return true; 6098 } 6099 } 6100 6101 return false; 6102 } 6103 } 6104 6105 @Override 6106 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 6107 if (!mHasFeature) { 6108 return; 6109 } 6110 Preconditions.checkNotNull(who, "ComponentName is null"); 6111 // Allow setting this policy to true only if there is a split system user. 6112 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 6113 throw new UnsupportedOperationException( 6114 "Cannot force ephemeral users on systems without split system user."); 6115 } 6116 boolean removeAllUsers = false; 6117 synchronized (this) { 6118 final ActiveAdmin deviceOwner = 6119 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6120 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 6121 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 6122 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 6123 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 6124 removeAllUsers = forceEphemeralUsers; 6125 } 6126 } 6127 if (removeAllUsers) { 6128 long identitity = mInjector.binderClearCallingIdentity(); 6129 try { 6130 mUserManagerInternal.removeAllUsers(); 6131 } finally { 6132 mInjector.binderRestoreCallingIdentity(identitity); 6133 } 6134 } 6135 } 6136 6137 @Override 6138 public boolean getForceEphemeralUsers(ComponentName who) { 6139 if (!mHasFeature) { 6140 return false; 6141 } 6142 Preconditions.checkNotNull(who, "ComponentName is null"); 6143 synchronized (this) { 6144 final ActiveAdmin deviceOwner = 6145 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6146 return deviceOwner.forceEphemeralUsers; 6147 } 6148 } 6149 6150 private void ensureDeviceOwnerAndAllUsersAffiliated(ComponentName who) throws SecurityException { 6151 synchronized (this) { 6152 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6153 if (!areAllUsersAffiliatedWithDeviceLocked()) { 6154 throw new SecurityException("Not all users are affiliated."); 6155 } 6156 } 6157 } 6158 6159 @Override 6160 public boolean requestBugreport(ComponentName who) { 6161 if (!mHasFeature) { 6162 return false; 6163 } 6164 Preconditions.checkNotNull(who, "ComponentName is null"); 6165 6166 // TODO: If an unaffiliated user is removed, the admin will be able to request a bugreport 6167 // which could still contain data related to that user. Should we disallow that, e.g. until 6168 // next boot? Might not be needed given that this still requires user consent. 6169 ensureDeviceOwnerAndAllUsersAffiliated(who); 6170 6171 if (mRemoteBugreportServiceIsActive.get() 6172 || (getDeviceOwnerRemoteBugreportUri() != null)) { 6173 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 6174 return false; 6175 } 6176 6177 final long currentTime = System.currentTimeMillis(); 6178 synchronized (this) { 6179 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 6180 if (currentTime > policyData.mLastBugReportRequestTime) { 6181 policyData.mLastBugReportRequestTime = currentTime; 6182 saveSettingsLocked(UserHandle.USER_SYSTEM); 6183 } 6184 } 6185 6186 final long callingIdentity = mInjector.binderClearCallingIdentity(); 6187 try { 6188 mInjector.getIActivityManager().requestBugReport( 6189 ActivityManager.BUGREPORT_OPTION_REMOTE); 6190 6191 mRemoteBugreportServiceIsActive.set(true); 6192 mRemoteBugreportSharingAccepted.set(false); 6193 registerRemoteBugreportReceivers(); 6194 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 6195 RemoteBugreportUtils.NOTIFICATION_ID, 6196 RemoteBugreportUtils.buildNotification(mContext, 6197 DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL); 6198 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 6199 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 6200 return true; 6201 } catch (RemoteException re) { 6202 // should never happen 6203 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 6204 return false; 6205 } finally { 6206 mInjector.binderRestoreCallingIdentity(callingIdentity); 6207 } 6208 } 6209 6210 synchronized void sendDeviceOwnerCommand(String action, Bundle extras) { 6211 Intent intent = new Intent(action); 6212 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6213 if (extras != null) { 6214 intent.putExtras(extras); 6215 } 6216 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6217 } 6218 6219 private synchronized String getDeviceOwnerRemoteBugreportUri() { 6220 return mOwners.getDeviceOwnerRemoteBugreportUri(); 6221 } 6222 6223 private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 6224 String bugreportHash) { 6225 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 6226 } 6227 6228 private void registerRemoteBugreportReceivers() { 6229 try { 6230 IntentFilter filterFinished = new IntentFilter( 6231 DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH, 6232 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6233 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 6234 } catch (IntentFilter.MalformedMimeTypeException e) { 6235 // should never happen, as setting a constant 6236 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 6237 } 6238 IntentFilter filterConsent = new IntentFilter(); 6239 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 6240 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 6241 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 6242 } 6243 6244 private void onBugreportFinished(Intent intent) { 6245 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6246 mRemoteBugreportServiceIsActive.set(false); 6247 Uri bugreportUri = intent.getData(); 6248 String bugreportUriString = null; 6249 if (bugreportUri != null) { 6250 bugreportUriString = bugreportUri.toString(); 6251 } 6252 String bugreportHash = intent.getStringExtra( 6253 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH); 6254 if (mRemoteBugreportSharingAccepted.get()) { 6255 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6256 mInjector.getNotificationManager().cancel(LOG_TAG, 6257 RemoteBugreportUtils.NOTIFICATION_ID); 6258 } else { 6259 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 6260 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6261 RemoteBugreportUtils.buildNotification(mContext, 6262 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 6263 UserHandle.ALL); 6264 } 6265 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6266 } 6267 6268 private void onBugreportFailed() { 6269 mRemoteBugreportServiceIsActive.set(false); 6270 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6271 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6272 mRemoteBugreportSharingAccepted.set(false); 6273 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6274 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 6275 Bundle extras = new Bundle(); 6276 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6277 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 6278 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6279 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 6280 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6281 } 6282 6283 private void onBugreportSharingAccepted() { 6284 mRemoteBugreportSharingAccepted.set(true); 6285 String bugreportUriString = null; 6286 String bugreportHash = null; 6287 synchronized (this) { 6288 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 6289 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 6290 } 6291 if (bugreportUriString != null) { 6292 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6293 } else if (mRemoteBugreportServiceIsActive.get()) { 6294 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6295 RemoteBugreportUtils.buildNotification(mContext, 6296 DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED), 6297 UserHandle.ALL); 6298 } 6299 } 6300 6301 private void onBugreportSharingDeclined() { 6302 if (mRemoteBugreportServiceIsActive.get()) { 6303 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6304 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6305 mRemoteBugreportServiceIsActive.set(false); 6306 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6307 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6308 } 6309 mRemoteBugreportSharingAccepted.set(false); 6310 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6311 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 6312 } 6313 6314 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 6315 String bugreportHash) { 6316 ParcelFileDescriptor pfd = null; 6317 try { 6318 if (bugreportUriString == null) { 6319 throw new FileNotFoundException(); 6320 } 6321 Uri bugreportUri = Uri.parse(bugreportUriString); 6322 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 6323 6324 synchronized (this) { 6325 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 6326 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6327 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6328 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 6329 intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 6330 6331 LocalServices.getService(ActivityManagerInternal.class) 6332 .grantUriPermissionFromIntent(Process.SHELL_UID, 6333 mOwners.getDeviceOwnerComponent().getPackageName(), 6334 intent, mOwners.getDeviceOwnerUserId()); 6335 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6336 } 6337 } catch (FileNotFoundException e) { 6338 Bundle extras = new Bundle(); 6339 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6340 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 6341 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6342 } finally { 6343 try { 6344 if (pfd != null) { 6345 pfd.close(); 6346 } 6347 } catch (IOException ex) { 6348 // Ignore 6349 } 6350 mRemoteBugreportSharingAccepted.set(false); 6351 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6352 } 6353 } 6354 6355 /** 6356 * Disables all device cameras according to the specified admin. 6357 */ 6358 @Override 6359 public void setCameraDisabled(ComponentName who, boolean disabled) { 6360 if (!mHasFeature) { 6361 return; 6362 } 6363 Preconditions.checkNotNull(who, "ComponentName is null"); 6364 final int userHandle = mInjector.userHandleGetCallingUserId(); 6365 synchronized (this) { 6366 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6367 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 6368 if (ap.disableCamera != disabled) { 6369 ap.disableCamera = disabled; 6370 saveSettingsLocked(userHandle); 6371 } 6372 } 6373 // Tell the user manager that the restrictions have changed. 6374 pushUserRestrictions(userHandle); 6375 } 6376 6377 /** 6378 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 6379 * active admins. 6380 */ 6381 @Override 6382 public boolean getCameraDisabled(ComponentName who, int userHandle) { 6383 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 6384 } 6385 6386 private boolean getCameraDisabled(ComponentName who, int userHandle, 6387 boolean mergeDeviceOwnerRestriction) { 6388 if (!mHasFeature) { 6389 return false; 6390 } 6391 synchronized (this) { 6392 if (who != null) { 6393 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6394 return (admin != null) ? admin.disableCamera : false; 6395 } 6396 // First, see if DO has set it. If so, it's device-wide. 6397 if (mergeDeviceOwnerRestriction) { 6398 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6399 if (deviceOwner != null && deviceOwner.disableCamera) { 6400 return true; 6401 } 6402 } 6403 6404 // Then check each device admin on the user. 6405 DevicePolicyData policy = getUserData(userHandle); 6406 // Determine whether or not the device camera is disabled for any active admins. 6407 final int N = policy.mAdminList.size(); 6408 for (int i = 0; i < N; i++) { 6409 ActiveAdmin admin = policy.mAdminList.get(i); 6410 if (admin.disableCamera) { 6411 return true; 6412 } 6413 } 6414 return false; 6415 } 6416 } 6417 6418 @Override 6419 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 6420 if (!mHasFeature) { 6421 return; 6422 } 6423 Preconditions.checkNotNull(who, "ComponentName is null"); 6424 final int userHandle = mInjector.userHandleGetCallingUserId(); 6425 if (isManagedProfile(userHandle)) { 6426 if (parent) { 6427 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 6428 } else { 6429 which = which & PROFILE_KEYGUARD_FEATURES; 6430 } 6431 } 6432 synchronized (this) { 6433 ActiveAdmin ap = getActiveAdminForCallerLocked( 6434 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 6435 if (ap.disabledKeyguardFeatures != which) { 6436 ap.disabledKeyguardFeatures = which; 6437 saveSettingsLocked(userHandle); 6438 } 6439 } 6440 } 6441 6442 /** 6443 * Gets the disabled state for features in keyguard for the given admin, 6444 * or the aggregate of all active admins if who is null. 6445 */ 6446 @Override 6447 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 6448 if (!mHasFeature) { 6449 return 0; 6450 } 6451 enforceFullCrossUsersPermission(userHandle); 6452 final long ident = mInjector.binderClearCallingIdentity(); 6453 try { 6454 synchronized (this) { 6455 if (who != null) { 6456 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 6457 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 6458 } 6459 6460 final List<ActiveAdmin> admins; 6461 if (!parent && isManagedProfile(userHandle)) { 6462 // If we are being asked about a managed profile, just return keyguard features 6463 // disabled by admins in the profile. 6464 admins = getUserDataUnchecked(userHandle).mAdminList; 6465 } else { 6466 // Otherwise return those set by admins in the user and its profiles. 6467 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 6468 } 6469 6470 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 6471 final int N = admins.size(); 6472 for (int i = 0; i < N; i++) { 6473 ActiveAdmin admin = admins.get(i); 6474 int userId = admin.getUserHandle().getIdentifier(); 6475 boolean isRequestedUser = !parent && (userId == userHandle); 6476 if (isRequestedUser || !isManagedProfile(userId)) { 6477 // If we are being asked explicitly about this user 6478 // return all disabled features even if its a managed profile. 6479 which |= admin.disabledKeyguardFeatures; 6480 } else { 6481 // Otherwise a managed profile is only allowed to disable 6482 // some features on the parent user. 6483 which |= (admin.disabledKeyguardFeatures 6484 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 6485 } 6486 } 6487 return which; 6488 } 6489 } finally { 6490 mInjector.binderRestoreCallingIdentity(ident); 6491 } 6492 } 6493 6494 @Override 6495 public void setKeepUninstalledPackages(ComponentName who, String callerPackage, 6496 List<String> packageList) { 6497 if (!mHasFeature) { 6498 return; 6499 } 6500 Preconditions.checkNotNull(packageList, "packageList is null"); 6501 final int userHandle = UserHandle.getCallingUserId(); 6502 synchronized (this) { 6503 // Ensure the caller is a DO or a keep uninstalled packages delegate. 6504 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 6505 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 6506 // Get the device owner 6507 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6508 // Set list of packages to be kept even if uninstalled. 6509 deviceOwner.keepUninstalledPackages = packageList; 6510 // Save settings. 6511 saveSettingsLocked(userHandle); 6512 // Notify package manager. 6513 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 6514 } 6515 } 6516 6517 @Override 6518 public List<String> getKeepUninstalledPackages(ComponentName who, String callerPackage) { 6519 if (!mHasFeature) { 6520 return null; 6521 } 6522 // TODO In split system user mode, allow apps on user 0 to query the list 6523 synchronized (this) { 6524 // Ensure the caller is a DO or a keep uninstalled packages delegate. 6525 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 6526 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 6527 return getKeepUninstalledPackagesLocked(); 6528 } 6529 } 6530 6531 private List<String> getKeepUninstalledPackagesLocked() { 6532 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6533 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 6534 } 6535 6536 @Override 6537 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 6538 if (!mHasFeature) { 6539 return false; 6540 } 6541 if (admin == null 6542 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 6543 throw new IllegalArgumentException("Invalid component " + admin 6544 + " for device owner"); 6545 } 6546 final boolean hasIncompatibleAccountsOrNonAdb = 6547 hasIncompatibleAccountsOrNonAdbNoLock(userId, admin); 6548 synchronized (this) { 6549 enforceCanSetDeviceOwnerLocked(admin, userId, hasIncompatibleAccountsOrNonAdb); 6550 final ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(admin, userId); 6551 if (activeAdmin == null 6552 || getUserData(userId).mRemovingAdmins.contains(admin)) { 6553 throw new IllegalArgumentException("Not active admin: " + admin); 6554 } 6555 6556 // Shutting down backup manager service permanently. 6557 long ident = mInjector.binderClearCallingIdentity(); 6558 try { 6559 if (mInjector.getIBackupManager() != null) { 6560 mInjector.getIBackupManager() 6561 .setBackupServiceActive(UserHandle.USER_SYSTEM, false); 6562 } 6563 } catch (RemoteException e) { 6564 throw new IllegalStateException("Failed deactivating backup service.", e); 6565 } finally { 6566 mInjector.binderRestoreCallingIdentity(ident); 6567 } 6568 6569 if (isAdb()) { 6570 // Log device owner provisioning was started using adb. 6571 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_DEVICE_OWNER); 6572 } 6573 6574 mOwners.setDeviceOwner(admin, ownerName, userId); 6575 mOwners.writeDeviceOwner(); 6576 updateDeviceOwnerLocked(); 6577 setDeviceOwnerSystemPropertyLocked(); 6578 6579 final Set<String> restrictions = 6580 UserRestrictionsUtils.getDefaultEnabledForDeviceOwner(); 6581 if (!restrictions.isEmpty()) { 6582 for (String restriction : restrictions) { 6583 activeAdmin.ensureUserRestrictions().putBoolean(restriction, true); 6584 } 6585 activeAdmin.defaultEnabledRestrictionsAlreadySet.addAll(restrictions); 6586 Slog.i(LOG_TAG, "Enabled the following restrictions by default: " + restrictions); 6587 6588 saveUserRestrictionsLocked(userId); 6589 } 6590 6591 ident = mInjector.binderClearCallingIdentity(); 6592 try { 6593 // TODO Send to system too? 6594 mContext.sendBroadcastAsUser( 6595 new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED) 6596 .addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND), 6597 UserHandle.of(userId)); 6598 } finally { 6599 mInjector.binderRestoreCallingIdentity(ident); 6600 } 6601 mDeviceAdminServiceController.startServiceForOwner( 6602 admin.getPackageName(), userId, "set-device-owner"); 6603 6604 Slog.i(LOG_TAG, "Device owner set: " + admin + " on user " + userId); 6605 return true; 6606 } 6607 } 6608 6609 @Override 6610 public boolean hasDeviceOwner() { 6611 enforceDeviceOwnerOrManageUsers(); 6612 return mOwners.hasDeviceOwner(); 6613 } 6614 6615 boolean isDeviceOwner(ActiveAdmin admin) { 6616 return isDeviceOwner(admin.info.getComponent(), admin.getUserHandle().getIdentifier()); 6617 } 6618 6619 public boolean isDeviceOwner(ComponentName who, int userId) { 6620 synchronized (this) { 6621 return mOwners.hasDeviceOwner() 6622 && mOwners.getDeviceOwnerUserId() == userId 6623 && mOwners.getDeviceOwnerComponent().equals(who); 6624 } 6625 } 6626 6627 private boolean isDeviceOwnerPackage(String packageName, int userId) { 6628 synchronized (this) { 6629 return mOwners.hasDeviceOwner() 6630 && mOwners.getDeviceOwnerUserId() == userId 6631 && mOwners.getDeviceOwnerPackageName().equals(packageName); 6632 } 6633 } 6634 6635 private boolean isProfileOwnerPackage(String packageName, int userId) { 6636 synchronized (this) { 6637 return mOwners.hasProfileOwner(userId) 6638 && mOwners.getProfileOwnerPackage(userId).equals(packageName); 6639 } 6640 } 6641 6642 public boolean isProfileOwner(ComponentName who, int userId) { 6643 final ComponentName profileOwner = getProfileOwner(userId); 6644 return who != null && who.equals(profileOwner); 6645 } 6646 6647 @Override 6648 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 6649 if (!mHasFeature) { 6650 return null; 6651 } 6652 if (!callingUserOnly) { 6653 enforceManageUsers(); 6654 } 6655 synchronized (this) { 6656 if (!mOwners.hasDeviceOwner()) { 6657 return null; 6658 } 6659 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 6660 mOwners.getDeviceOwnerUserId()) { 6661 return null; 6662 } 6663 return mOwners.getDeviceOwnerComponent(); 6664 } 6665 } 6666 6667 @Override 6668 public int getDeviceOwnerUserId() { 6669 if (!mHasFeature) { 6670 return UserHandle.USER_NULL; 6671 } 6672 enforceManageUsers(); 6673 synchronized (this) { 6674 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 6675 } 6676 } 6677 6678 /** 6679 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 6680 * MANAGE_USERS. 6681 */ 6682 @Override 6683 public String getDeviceOwnerName() { 6684 if (!mHasFeature) { 6685 return null; 6686 } 6687 enforceManageUsers(); 6688 synchronized (this) { 6689 if (!mOwners.hasDeviceOwner()) { 6690 return null; 6691 } 6692 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 6693 // Should setDeviceOwner/ProfileOwner still take a name? 6694 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 6695 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 6696 } 6697 } 6698 6699 /** Returns the active device owner or {@code null} if there is no device owner. */ 6700 @VisibleForTesting 6701 ActiveAdmin getDeviceOwnerAdminLocked() { 6702 ComponentName component = mOwners.getDeviceOwnerComponent(); 6703 if (component == null) { 6704 return null; 6705 } 6706 6707 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 6708 final int n = policy.mAdminList.size(); 6709 for (int i = 0; i < n; i++) { 6710 ActiveAdmin admin = policy.mAdminList.get(i); 6711 if (component.equals(admin.info.getComponent())) { 6712 return admin; 6713 } 6714 } 6715 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 6716 return null; 6717 } 6718 6719 @Override 6720 public void clearDeviceOwner(String packageName) { 6721 Preconditions.checkNotNull(packageName, "packageName is null"); 6722 final int callingUid = mInjector.binderGetCallingUid(); 6723 try { 6724 int uid = mInjector.getPackageManager().getPackageUidAsUser(packageName, 6725 UserHandle.getUserId(callingUid)); 6726 if (uid != callingUid) { 6727 throw new SecurityException("Invalid packageName"); 6728 } 6729 } catch (NameNotFoundException e) { 6730 throw new SecurityException(e); 6731 } 6732 synchronized (this) { 6733 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 6734 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 6735 if (!mOwners.hasDeviceOwner() 6736 || !deviceOwnerComponent.getPackageName().equals(packageName) 6737 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 6738 throw new SecurityException( 6739 "clearDeviceOwner can only be called by the device owner"); 6740 } 6741 enforceUserUnlocked(deviceOwnerUserId); 6742 6743 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 6744 long ident = mInjector.binderClearCallingIdentity(); 6745 try { 6746 clearDeviceOwnerLocked(admin, deviceOwnerUserId); 6747 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 6748 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 6749 intent.addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); 6750 mContext.sendBroadcastAsUser(intent, UserHandle.of(deviceOwnerUserId)); 6751 } finally { 6752 mInjector.binderRestoreCallingIdentity(ident); 6753 } 6754 Slog.i(LOG_TAG, "Device owner removed: " + deviceOwnerComponent); 6755 } 6756 } 6757 6758 private void clearDeviceOwnerLocked(ActiveAdmin admin, int userId) { 6759 mDeviceAdminServiceController.stopServiceForOwner(userId, "clear-device-owner"); 6760 6761 if (admin != null) { 6762 admin.disableCamera = false; 6763 admin.userRestrictions = null; 6764 admin.defaultEnabledRestrictionsAlreadySet.clear(); 6765 admin.forceEphemeralUsers = false; 6766 admin.isNetworkLoggingEnabled = false; 6767 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 6768 } 6769 final DevicePolicyData policyData = getUserData(userId); 6770 policyData.mCurrentInputMethodSet = false; 6771 saveSettingsLocked(userId); 6772 final DevicePolicyData systemPolicyData = getUserData(UserHandle.USER_SYSTEM); 6773 systemPolicyData.mLastSecurityLogRetrievalTime = -1; 6774 systemPolicyData.mLastBugReportRequestTime = -1; 6775 systemPolicyData.mLastNetworkLogsRetrievalTime = -1; 6776 saveSettingsLocked(UserHandle.USER_SYSTEM); 6777 clearUserPoliciesLocked(userId); 6778 6779 mOwners.clearDeviceOwner(); 6780 mOwners.writeDeviceOwner(); 6781 updateDeviceOwnerLocked(); 6782 6783 clearDeviceOwnerUserRestrictionLocked(UserHandle.of(userId)); 6784 mInjector.securityLogSetLoggingEnabledProperty(false); 6785 mSecurityLogMonitor.stop(); 6786 setNetworkLoggingActiveInternal(false); 6787 6788 try { 6789 if (mInjector.getIBackupManager() != null) { 6790 // Reactivate backup service. 6791 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 6792 } 6793 } catch (RemoteException e) { 6794 throw new IllegalStateException("Failed reactivating backup service.", e); 6795 } 6796 } 6797 6798 @Override 6799 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 6800 if (!mHasFeature) { 6801 return false; 6802 } 6803 if (who == null 6804 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 6805 throw new IllegalArgumentException("Component " + who 6806 + " not installed for userId:" + userHandle); 6807 } 6808 final boolean hasIncompatibleAccountsOrNonAdb = 6809 hasIncompatibleAccountsOrNonAdbNoLock(userHandle, who); 6810 synchronized (this) { 6811 enforceCanSetProfileOwnerLocked(who, userHandle, hasIncompatibleAccountsOrNonAdb); 6812 6813 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6814 if (admin == null || getUserData(userHandle).mRemovingAdmins.contains(who)) { 6815 throw new IllegalArgumentException("Not active admin: " + who); 6816 } 6817 6818 if (isAdb()) { 6819 // Log profile owner provisioning was started using adb. 6820 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_PROFILE_OWNER); 6821 } 6822 6823 mOwners.setProfileOwner(who, ownerName, userHandle); 6824 mOwners.writeProfileOwner(userHandle); 6825 Slog.i(LOG_TAG, "Profile owner set: " + who + " on user " + userHandle); 6826 6827 final long id = mInjector.binderClearCallingIdentity(); 6828 try { 6829 if (mUserManager.isManagedProfile(userHandle)) { 6830 maybeSetDefaultRestrictionsForAdminLocked(userHandle, admin, 6831 UserRestrictionsUtils.getDefaultEnabledForManagedProfiles()); 6832 ensureUnknownSourcesRestrictionForProfileOwnerLocked(userHandle, admin, 6833 true /* newOwner */); 6834 } 6835 } finally { 6836 mInjector.binderRestoreCallingIdentity(id); 6837 } 6838 mDeviceAdminServiceController.startServiceForOwner( 6839 who.getPackageName(), userHandle, "set-profile-owner"); 6840 return true; 6841 } 6842 } 6843 6844 @Override 6845 public void clearProfileOwner(ComponentName who) { 6846 if (!mHasFeature) { 6847 return; 6848 } 6849 Preconditions.checkNotNull(who, "ComponentName is null"); 6850 6851 final int userId = mInjector.userHandleGetCallingUserId(); 6852 enforceNotManagedProfile(userId, "clear profile owner"); 6853 enforceUserUnlocked(userId); 6854 synchronized (this) { 6855 // Check if this is the profile owner who is calling 6856 final ActiveAdmin admin = 6857 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6858 6859 final long ident = mInjector.binderClearCallingIdentity(); 6860 try { 6861 clearProfileOwnerLocked(admin, userId); 6862 removeActiveAdminLocked(who, userId); 6863 } finally { 6864 mInjector.binderRestoreCallingIdentity(ident); 6865 } 6866 Slog.i(LOG_TAG, "Profile owner " + who + " removed from user " + userId); 6867 } 6868 } 6869 6870 public void clearProfileOwnerLocked(ActiveAdmin admin, int userId) { 6871 mDeviceAdminServiceController.stopServiceForOwner(userId, "clear-profile-owner"); 6872 6873 if (admin != null) { 6874 admin.disableCamera = false; 6875 admin.userRestrictions = null; 6876 admin.defaultEnabledRestrictionsAlreadySet.clear(); 6877 } 6878 final DevicePolicyData policyData = getUserData(userId); 6879 policyData.mCurrentInputMethodSet = false; 6880 policyData.mOwnerInstalledCaCerts.clear(); 6881 saveSettingsLocked(userId); 6882 clearUserPoliciesLocked(userId); 6883 mOwners.removeProfileOwner(userId); 6884 mOwners.writeProfileOwner(userId); 6885 } 6886 6887 @Override 6888 public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) { 6889 Preconditions.checkNotNull(who, "ComponentName is null"); 6890 if (!mHasFeature) { 6891 return; 6892 } 6893 6894 synchronized (this) { 6895 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6896 long token = mInjector.binderClearCallingIdentity(); 6897 try { 6898 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null); 6899 } finally { 6900 mInjector.binderRestoreCallingIdentity(token); 6901 } 6902 } 6903 } 6904 6905 @Override 6906 public CharSequence getDeviceOwnerLockScreenInfo() { 6907 return mLockPatternUtils.getDeviceOwnerInfo(); 6908 } 6909 6910 private void clearUserPoliciesLocked(int userId) { 6911 // Reset some of the user-specific policies. 6912 final DevicePolicyData policy = getUserData(userId); 6913 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 6914 // Clear delegations. 6915 policy.mDelegationMap.clear(); 6916 policy.mStatusBarDisabled = false; 6917 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 6918 policy.mAffiliationIds.clear(); 6919 policy.mLockTaskPackages.clear(); 6920 saveSettingsLocked(userId); 6921 6922 try { 6923 mIPackageManager.updatePermissionFlagsForAllApps( 6924 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6925 0 /* flagValues */, userId); 6926 pushUserRestrictions(userId); 6927 } catch (RemoteException re) { 6928 // Shouldn't happen. 6929 } 6930 } 6931 6932 @Override 6933 public boolean hasUserSetupCompleted() { 6934 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 6935 } 6936 6937 // This checks only if the Setup Wizard has run. Since Wear devices pair before 6938 // completing Setup Wizard, and pairing involves transferring user data, calling 6939 // logic may want to check mIsWatch or mPaired in addition to hasUserSetupCompleted(). 6940 private boolean hasUserSetupCompleted(int userHandle) { 6941 if (!mHasFeature) { 6942 return true; 6943 } 6944 return getUserData(userHandle).mUserSetupComplete; 6945 } 6946 6947 private boolean hasPaired(int userHandle) { 6948 if (!mHasFeature) { 6949 return true; 6950 } 6951 return getUserData(userHandle).mPaired; 6952 } 6953 6954 @Override 6955 public int getUserProvisioningState() { 6956 if (!mHasFeature) { 6957 return DevicePolicyManager.STATE_USER_UNMANAGED; 6958 } 6959 int userHandle = mInjector.userHandleGetCallingUserId(); 6960 return getUserProvisioningState(userHandle); 6961 } 6962 6963 private int getUserProvisioningState(int userHandle) { 6964 return getUserData(userHandle).mUserProvisioningState; 6965 } 6966 6967 @Override 6968 public void setUserProvisioningState(int newState, int userHandle) { 6969 if (!mHasFeature) { 6970 return; 6971 } 6972 6973 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 6974 && getManagedUserId(userHandle) == -1) { 6975 // No managed device, user or profile, so setting provisioning state makes no sense. 6976 throw new IllegalStateException("Not allowed to change provisioning state unless a " 6977 + "device or profile owner is set."); 6978 } 6979 6980 synchronized (this) { 6981 boolean transitionCheckNeeded = true; 6982 6983 // Calling identity/permission checks. 6984 if (isAdb()) { 6985 // ADB shell can only move directly from un-managed to finalized as part of directly 6986 // setting profile-owner or device-owner. 6987 if (getUserProvisioningState(userHandle) != 6988 DevicePolicyManager.STATE_USER_UNMANAGED 6989 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6990 throw new IllegalStateException("Not allowed to change provisioning state " 6991 + "unless current provisioning state is unmanaged, and new state is " 6992 + "finalized."); 6993 } 6994 transitionCheckNeeded = false; 6995 } else { 6996 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 6997 enforceCanManageProfileAndDeviceOwners(); 6998 } 6999 7000 final DevicePolicyData policyData = getUserData(userHandle); 7001 if (transitionCheckNeeded) { 7002 // Optional state transition check for non-ADB case. 7003 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 7004 } 7005 policyData.mUserProvisioningState = newState; 7006 saveSettingsLocked(userHandle); 7007 } 7008 } 7009 7010 private void checkUserProvisioningStateTransition(int currentState, int newState) { 7011 // Valid transitions for normal use-cases. 7012 switch (currentState) { 7013 case DevicePolicyManager.STATE_USER_UNMANAGED: 7014 // Can move to any state from unmanaged (except itself as an edge case).. 7015 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 7016 return; 7017 } 7018 break; 7019 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 7020 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 7021 // Can only move to finalized from these states. 7022 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 7023 return; 7024 } 7025 break; 7026 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 7027 // Current user has a managed-profile, but current user is not managed, so 7028 // rather than moving to finalized state, go back to unmanaged once 7029 // profile provisioning is complete. 7030 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 7031 return; 7032 } 7033 break; 7034 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 7035 // Cannot transition out of finalized. 7036 break; 7037 } 7038 7039 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 7040 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 7041 + "from state [" + currentState + "]"); 7042 } 7043 7044 @Override 7045 public void setProfileEnabled(ComponentName who) { 7046 if (!mHasFeature) { 7047 return; 7048 } 7049 Preconditions.checkNotNull(who, "ComponentName is null"); 7050 synchronized (this) { 7051 // Check if this is the profile owner who is calling 7052 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7053 final int userId = UserHandle.getCallingUserId(); 7054 enforceManagedProfile(userId, "enable the profile"); 7055 // Check if the profile is already enabled. 7056 UserInfo managedProfile = getUserInfo(userId); 7057 if (managedProfile.isEnabled()) { 7058 Slog.e(LOG_TAG, 7059 "setProfileEnabled is called when the profile is already enabled"); 7060 return; 7061 } 7062 long id = mInjector.binderClearCallingIdentity(); 7063 try { 7064 mUserManager.setUserEnabled(userId); 7065 UserInfo parent = mUserManager.getProfileParent(userId); 7066 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 7067 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 7068 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 7069 Intent.FLAG_RECEIVER_FOREGROUND); 7070 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 7071 } finally { 7072 mInjector.binderRestoreCallingIdentity(id); 7073 } 7074 } 7075 } 7076 7077 @Override 7078 public void setProfileName(ComponentName who, String profileName) { 7079 Preconditions.checkNotNull(who, "ComponentName is null"); 7080 int userId = UserHandle.getCallingUserId(); 7081 // Check if this is the profile owner (includes device owner). 7082 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7083 7084 long id = mInjector.binderClearCallingIdentity(); 7085 try { 7086 mUserManager.setUserName(userId, profileName); 7087 } finally { 7088 mInjector.binderRestoreCallingIdentity(id); 7089 } 7090 } 7091 7092 @Override 7093 public ComponentName getProfileOwner(int userHandle) { 7094 if (!mHasFeature) { 7095 return null; 7096 } 7097 7098 synchronized (this) { 7099 return mOwners.getProfileOwnerComponent(userHandle); 7100 } 7101 } 7102 7103 // Returns the active profile owner for this user or null if the current user has no 7104 // profile owner. 7105 @VisibleForTesting 7106 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 7107 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 7108 if (profileOwner == null) { 7109 return null; 7110 } 7111 DevicePolicyData policy = getUserData(userHandle); 7112 final int n = policy.mAdminList.size(); 7113 for (int i = 0; i < n; i++) { 7114 ActiveAdmin admin = policy.mAdminList.get(i); 7115 if (profileOwner.equals(admin.info.getComponent())) { 7116 return admin; 7117 } 7118 } 7119 return null; 7120 } 7121 7122 @Override 7123 public String getProfileOwnerName(int userHandle) { 7124 if (!mHasFeature) { 7125 return null; 7126 } 7127 enforceManageUsers(); 7128 ComponentName profileOwner = getProfileOwner(userHandle); 7129 if (profileOwner == null) { 7130 return null; 7131 } 7132 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 7133 } 7134 7135 /** 7136 * Canonical name for a given package. 7137 */ 7138 private String getApplicationLabel(String packageName, int userHandle) { 7139 long token = mInjector.binderClearCallingIdentity(); 7140 try { 7141 final Context userContext; 7142 try { 7143 UserHandle handle = new UserHandle(userHandle); 7144 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 7145 } catch (PackageManager.NameNotFoundException nnfe) { 7146 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 7147 return null; 7148 } 7149 ApplicationInfo appInfo = userContext.getApplicationInfo(); 7150 CharSequence result = null; 7151 if (appInfo != null) { 7152 PackageManager pm = userContext.getPackageManager(); 7153 result = pm.getApplicationLabel(appInfo); 7154 } 7155 return result != null ? result.toString() : null; 7156 } finally { 7157 mInjector.binderRestoreCallingIdentity(token); 7158 } 7159 } 7160 7161 /** 7162 * Calls wtfStack() if called with the DPMS lock held. 7163 */ 7164 private void wtfIfInLock() { 7165 if (Thread.holdsLock(this)) { 7166 Slog.wtfStack(LOG_TAG, "Shouldn't be called with DPMS lock held"); 7167 } 7168 } 7169 7170 /** 7171 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7172 * permission. 7173 * The profile owner can only be set before the user setup phase has completed, 7174 * except for: 7175 * - SYSTEM_UID 7176 * - adb unless hasIncompatibleAccountsOrNonAdb is true. 7177 */ 7178 private void enforceCanSetProfileOwnerLocked(@Nullable ComponentName owner, int userHandle, 7179 boolean hasIncompatibleAccountsOrNonAdb) { 7180 UserInfo info = getUserInfo(userHandle); 7181 if (info == null) { 7182 // User doesn't exist. 7183 throw new IllegalArgumentException( 7184 "Attempted to set profile owner for invalid userId: " + userHandle); 7185 } 7186 if (info.isGuest()) { 7187 throw new IllegalStateException("Cannot set a profile owner on a guest"); 7188 } 7189 if (mOwners.hasProfileOwner(userHandle)) { 7190 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 7191 + "is already set."); 7192 } 7193 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 7194 throw new IllegalStateException("Trying to set the profile owner, but the user " 7195 + "already has a device owner."); 7196 } 7197 if (isAdb()) { 7198 if ((mIsWatch || hasUserSetupCompleted(userHandle)) 7199 && hasIncompatibleAccountsOrNonAdb) { 7200 throw new IllegalStateException("Not allowed to set the profile owner because " 7201 + "there are already some accounts on the profile"); 7202 } 7203 return; 7204 } 7205 enforceCanManageProfileAndDeviceOwners(); 7206 if ((mIsWatch || hasUserSetupCompleted(userHandle)) && !isCallerWithSystemUid()) { 7207 throw new IllegalStateException("Cannot set the profile owner on a user which is " 7208 + "already set-up"); 7209 } 7210 } 7211 7212 /** 7213 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7214 * permission. 7215 */ 7216 private void enforceCanSetDeviceOwnerLocked(@Nullable ComponentName owner, int userId, 7217 boolean hasIncompatibleAccountsOrNonAdb) { 7218 if (!isAdb()) { 7219 enforceCanManageProfileAndDeviceOwners(); 7220 } 7221 7222 final int code = checkDeviceOwnerProvisioningPreConditionLocked( 7223 owner, userId, isAdb(), hasIncompatibleAccountsOrNonAdb); 7224 switch (code) { 7225 case CODE_OK: 7226 return; 7227 case CODE_HAS_DEVICE_OWNER: 7228 throw new IllegalStateException( 7229 "Trying to set the device owner, but device owner is already set."); 7230 case CODE_USER_HAS_PROFILE_OWNER: 7231 throw new IllegalStateException("Trying to set the device owner, but the user " 7232 + "already has a profile owner."); 7233 case CODE_USER_NOT_RUNNING: 7234 throw new IllegalStateException("User not running: " + userId); 7235 case CODE_NOT_SYSTEM_USER: 7236 throw new IllegalStateException("User is not system user"); 7237 case CODE_USER_SETUP_COMPLETED: 7238 throw new IllegalStateException( 7239 "Cannot set the device owner if the device is already set-up"); 7240 case CODE_NONSYSTEM_USER_EXISTS: 7241 throw new IllegalStateException("Not allowed to set the device owner because there " 7242 + "are already several users on the device"); 7243 case CODE_ACCOUNTS_NOT_EMPTY: 7244 throw new IllegalStateException("Not allowed to set the device owner because there " 7245 + "are already some accounts on the device"); 7246 case CODE_HAS_PAIRED: 7247 throw new IllegalStateException("Not allowed to set the device owner because this " 7248 + "device has already paired"); 7249 default: 7250 throw new IllegalStateException("Unexpected @ProvisioningPreCondition " + code); 7251 } 7252 } 7253 7254 private void enforceUserUnlocked(int userId) { 7255 // Since we're doing this operation on behalf of an app, we only 7256 // want to use the actual "unlocked" state. 7257 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 7258 "User must be running and unlocked"); 7259 } 7260 7261 private void enforceUserUnlocked(@UserIdInt int userId, boolean parent) { 7262 if (parent) { 7263 enforceUserUnlocked(getProfileParentId(userId)); 7264 } else { 7265 enforceUserUnlocked(userId); 7266 } 7267 } 7268 7269 private void enforceManageUsers() { 7270 final int callingUid = mInjector.binderGetCallingUid(); 7271 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 7272 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 7273 } 7274 } 7275 7276 private void enforceFullCrossUsersPermission(int userHandle) { 7277 enforceSystemUserOrPermissionIfCrossUser(userHandle, 7278 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 7279 } 7280 7281 private void enforceCrossUsersPermission(int userHandle) { 7282 enforceSystemUserOrPermissionIfCrossUser(userHandle, 7283 android.Manifest.permission.INTERACT_ACROSS_USERS); 7284 } 7285 7286 private void enforceSystemUserOrPermission(String permission) { 7287 if (!(isCallerWithSystemUid() || mInjector.binderGetCallingUid() == Process.ROOT_UID)) { 7288 mContext.enforceCallingOrSelfPermission(permission, 7289 "Must be system or have " + permission + " permission"); 7290 } 7291 } 7292 7293 private void enforceSystemUserOrPermissionIfCrossUser(int userHandle, String permission) { 7294 if (userHandle < 0) { 7295 throw new IllegalArgumentException("Invalid userId " + userHandle); 7296 } 7297 if (userHandle == mInjector.userHandleGetCallingUserId()) { 7298 return; 7299 } 7300 enforceSystemUserOrPermission(permission); 7301 } 7302 7303 private void enforceManagedProfile(int userHandle, String message) { 7304 if(!isManagedProfile(userHandle)) { 7305 throw new SecurityException("You can not " + message + " outside a managed profile."); 7306 } 7307 } 7308 7309 private void enforceNotManagedProfile(int userHandle, String message) { 7310 if(isManagedProfile(userHandle)) { 7311 throw new SecurityException("You can not " + message + " for a managed profile."); 7312 } 7313 } 7314 7315 private void enforceDeviceOwnerOrManageUsers() { 7316 synchronized (this) { 7317 if (getActiveAdminWithPolicyForUidLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 7318 mInjector.binderGetCallingUid()) != null) { 7319 return; 7320 } 7321 } 7322 enforceManageUsers(); 7323 } 7324 7325 private void enforceProfileOwnerOrSystemUser() { 7326 synchronized (this) { 7327 if (getActiveAdminWithPolicyForUidLocked(null, 7328 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7329 != null) { 7330 return; 7331 } 7332 } 7333 Preconditions.checkState(isCallerWithSystemUid(), 7334 "Only profile owner, device owner and system may call this method."); 7335 } 7336 7337 private void enforceProfileOwnerOrFullCrossUsersPermission(int userId) { 7338 if (userId == mInjector.userHandleGetCallingUserId()) { 7339 synchronized (this) { 7340 if (getActiveAdminWithPolicyForUidLocked(null, 7341 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7342 != null) { 7343 // Device Owner/Profile Owner may access the user it runs on. 7344 return; 7345 } 7346 } 7347 } 7348 // Otherwise, INTERACT_ACROSS_USERS_FULL permission, system UID or root UID is required. 7349 enforceSystemUserOrPermission(android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 7350 } 7351 7352 private void ensureCallerPackage(@Nullable String packageName) { 7353 if (packageName == null) { 7354 Preconditions.checkState(isCallerWithSystemUid(), 7355 "Only caller can omit package name"); 7356 } else { 7357 final int callingUid = mInjector.binderGetCallingUid(); 7358 final int userId = mInjector.userHandleGetCallingUserId(); 7359 try { 7360 final ApplicationInfo ai = mIPackageManager.getApplicationInfo( 7361 packageName, 0, userId); 7362 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name"); 7363 } catch (RemoteException e) { 7364 // Shouldn't happen 7365 } 7366 } 7367 } 7368 7369 private boolean isCallerWithSystemUid() { 7370 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 7371 } 7372 7373 protected int getProfileParentId(int userHandle) { 7374 final long ident = mInjector.binderClearCallingIdentity(); 7375 try { 7376 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 7377 return parentUser != null ? parentUser.id : userHandle; 7378 } finally { 7379 mInjector.binderRestoreCallingIdentity(ident); 7380 } 7381 } 7382 7383 private int getCredentialOwner(int userHandle, boolean parent) { 7384 final long ident = mInjector.binderClearCallingIdentity(); 7385 try { 7386 if (parent) { 7387 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 7388 if (parentProfile != null) { 7389 userHandle = parentProfile.id; 7390 } 7391 } 7392 return mUserManager.getCredentialOwnerProfile(userHandle); 7393 } finally { 7394 mInjector.binderRestoreCallingIdentity(ident); 7395 } 7396 } 7397 7398 private boolean isManagedProfile(int userHandle) { 7399 final UserInfo user = getUserInfo(userHandle); 7400 return user != null && user.isManagedProfile(); 7401 } 7402 7403 private void enableIfNecessary(String packageName, int userId) { 7404 try { 7405 final ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 7406 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS, userId); 7407 if (ai.enabledSetting 7408 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 7409 mIPackageManager.setApplicationEnabledSetting(packageName, 7410 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 7411 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 7412 } 7413 } catch (RemoteException e) { 7414 } 7415 } 7416 7417 @Override 7418 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 7419 if (!DumpUtils.checkDumpPermission(mContext, LOG_TAG, pw)) return; 7420 7421 synchronized (this) { 7422 pw.println("Current Device Policy Manager state:"); 7423 7424 mOwners.dump(" ", pw); 7425 mDeviceAdminServiceController.dump(" ", pw); 7426 int userCount = mUserData.size(); 7427 for (int u = 0; u < userCount; u++) { 7428 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 7429 pw.println(); 7430 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 7431 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 7432 final int N = policy.mAdminList.size(); 7433 for (int i=0; i<N; i++) { 7434 ActiveAdmin ap = policy.mAdminList.get(i); 7435 if (ap != null) { 7436 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 7437 pw.println(":"); 7438 ap.dump(" ", pw); 7439 } 7440 } 7441 if (!policy.mRemovingAdmins.isEmpty()) { 7442 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 7443 + policy.mRemovingAdmins); 7444 } 7445 7446 pw.println(" "); 7447 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 7448 } 7449 pw.println(); 7450 mConstants.dump(" ", pw); 7451 pw.println(); 7452 pw.println(" Encryption Status: " + getEncryptionStatusName(getEncryptionStatus())); 7453 } 7454 } 7455 7456 private String getEncryptionStatusName(int encryptionStatus) { 7457 switch (encryptionStatus) { 7458 case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE: 7459 return "inactive"; 7460 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: 7461 return "block default key"; 7462 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE: 7463 return "block"; 7464 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER: 7465 return "per-user"; 7466 case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED: 7467 return "unsupported"; 7468 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING: 7469 return "activating"; 7470 default: 7471 return "unknown"; 7472 } 7473 } 7474 7475 @Override 7476 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 7477 ComponentName activity) { 7478 Preconditions.checkNotNull(who, "ComponentName is null"); 7479 final int userHandle = UserHandle.getCallingUserId(); 7480 synchronized (this) { 7481 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7482 7483 long id = mInjector.binderClearCallingIdentity(); 7484 try { 7485 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 7486 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 7487 } catch (RemoteException re) { 7488 // Shouldn't happen 7489 } finally { 7490 mInjector.binderRestoreCallingIdentity(id); 7491 } 7492 } 7493 } 7494 7495 @Override 7496 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 7497 Preconditions.checkNotNull(who, "ComponentName is null"); 7498 final int userHandle = UserHandle.getCallingUserId(); 7499 synchronized (this) { 7500 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7501 7502 long id = mInjector.binderClearCallingIdentity(); 7503 try { 7504 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 7505 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 7506 } catch (RemoteException re) { 7507 // Shouldn't happen 7508 } finally { 7509 mInjector.binderRestoreCallingIdentity(id); 7510 } 7511 } 7512 } 7513 7514 @Override 7515 public boolean setApplicationRestrictionsManagingPackage(ComponentName admin, 7516 String packageName) { 7517 try { 7518 setDelegatedScopePreO(admin, packageName, DELEGATION_APP_RESTRICTIONS); 7519 } catch (IllegalArgumentException e) { 7520 return false; 7521 } 7522 return true; 7523 } 7524 7525 @Override 7526 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 7527 final List<String> delegatePackages = getDelegatePackages(admin, 7528 DELEGATION_APP_RESTRICTIONS); 7529 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 7530 } 7531 7532 @Override 7533 public boolean isCallerApplicationRestrictionsManagingPackage(String callerPackage) { 7534 return isCallerDelegate(callerPackage, DELEGATION_APP_RESTRICTIONS); 7535 } 7536 7537 @Override 7538 public void setApplicationRestrictions(ComponentName who, String callerPackage, 7539 String packageName, Bundle settings) { 7540 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 7541 DELEGATION_APP_RESTRICTIONS); 7542 7543 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 7544 final long id = mInjector.binderClearCallingIdentity(); 7545 try { 7546 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 7547 } finally { 7548 mInjector.binderRestoreCallingIdentity(id); 7549 } 7550 } 7551 7552 @Override 7553 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 7554 PersistableBundle args, boolean parent) { 7555 if (!mHasFeature) { 7556 return; 7557 } 7558 Preconditions.checkNotNull(admin, "admin is null"); 7559 Preconditions.checkNotNull(agent, "agent is null"); 7560 final int userHandle = UserHandle.getCallingUserId(); 7561 synchronized (this) { 7562 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 7563 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 7564 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 7565 saveSettingsLocked(userHandle); 7566 } 7567 } 7568 7569 @Override 7570 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 7571 ComponentName agent, int userHandle, boolean parent) { 7572 if (!mHasFeature) { 7573 return null; 7574 } 7575 Preconditions.checkNotNull(agent, "agent null"); 7576 enforceFullCrossUsersPermission(userHandle); 7577 7578 synchronized (this) { 7579 final String componentName = agent.flattenToString(); 7580 if (admin != null) { 7581 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle, parent); 7582 if (ap == null) return null; 7583 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 7584 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 7585 List<PersistableBundle> result = new ArrayList<>(); 7586 result.add(trustAgentInfo.options); 7587 return result; 7588 } 7589 7590 // Return strictest policy for this user and profiles that are visible from this user. 7591 List<PersistableBundle> result = null; 7592 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 7593 // of the options. If any admin doesn't have options, discard options for the rest 7594 // and return null. 7595 List<ActiveAdmin> admins = 7596 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 7597 boolean allAdminsHaveOptions = true; 7598 final int N = admins.size(); 7599 for (int i = 0; i < N; i++) { 7600 final ActiveAdmin active = admins.get(i); 7601 7602 final boolean disablesTrust = (active.disabledKeyguardFeatures 7603 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 7604 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 7605 if (info != null && info.options != null && !info.options.isEmpty()) { 7606 if (disablesTrust) { 7607 if (result == null) { 7608 result = new ArrayList<>(); 7609 } 7610 result.add(info.options); 7611 } else { 7612 Log.w(LOG_TAG, "Ignoring admin " + active.info 7613 + " because it has trust options but doesn't declare " 7614 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 7615 } 7616 } else if (disablesTrust) { 7617 allAdminsHaveOptions = false; 7618 break; 7619 } 7620 } 7621 return allAdminsHaveOptions ? result : null; 7622 } 7623 } 7624 7625 @Override 7626 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 7627 Preconditions.checkNotNull(who, "ComponentName is null"); 7628 synchronized (this) { 7629 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7630 7631 int userHandle = UserHandle.getCallingUserId(); 7632 DevicePolicyData userData = getUserData(userHandle); 7633 userData.mRestrictionsProvider = permissionProvider; 7634 saveSettingsLocked(userHandle); 7635 } 7636 } 7637 7638 @Override 7639 public ComponentName getRestrictionsProvider(int userHandle) { 7640 synchronized (this) { 7641 if (!isCallerWithSystemUid()) { 7642 throw new SecurityException("Only the system can query the permission provider"); 7643 } 7644 DevicePolicyData userData = getUserData(userHandle); 7645 return userData != null ? userData.mRestrictionsProvider : null; 7646 } 7647 } 7648 7649 @Override 7650 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 7651 Preconditions.checkNotNull(who, "ComponentName is null"); 7652 int callingUserId = UserHandle.getCallingUserId(); 7653 synchronized (this) { 7654 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7655 7656 long id = mInjector.binderClearCallingIdentity(); 7657 try { 7658 UserInfo parent = mUserManager.getProfileParent(callingUserId); 7659 if (parent == null) { 7660 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 7661 + "parent"); 7662 return; 7663 } 7664 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 7665 mIPackageManager.addCrossProfileIntentFilter( 7666 filter, who.getPackageName(), callingUserId, parent.id, 0); 7667 } 7668 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 7669 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 7670 parent.id, callingUserId, 0); 7671 } 7672 } catch (RemoteException re) { 7673 // Shouldn't happen 7674 } finally { 7675 mInjector.binderRestoreCallingIdentity(id); 7676 } 7677 } 7678 } 7679 7680 @Override 7681 public void clearCrossProfileIntentFilters(ComponentName who) { 7682 Preconditions.checkNotNull(who, "ComponentName is null"); 7683 int callingUserId = UserHandle.getCallingUserId(); 7684 synchronized (this) { 7685 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7686 long id = mInjector.binderClearCallingIdentity(); 7687 try { 7688 UserInfo parent = mUserManager.getProfileParent(callingUserId); 7689 if (parent == null) { 7690 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 7691 + "parent"); 7692 return; 7693 } 7694 // Removing those that go from the managed profile to the parent. 7695 mIPackageManager.clearCrossProfileIntentFilters( 7696 callingUserId, who.getPackageName()); 7697 // And those that go from the parent to the managed profile. 7698 // If we want to support multiple managed profiles, we will have to only remove 7699 // those that have callingUserId as their target. 7700 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 7701 } catch (RemoteException re) { 7702 // Shouldn't happen 7703 } finally { 7704 mInjector.binderRestoreCallingIdentity(id); 7705 } 7706 } 7707 } 7708 7709 /** 7710 * @return true if all packages in enabledPackages are either in the list 7711 * permittedList or are a system app. 7712 */ 7713 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 7714 List<String> permittedList, int userIdToCheck) { 7715 long id = mInjector.binderClearCallingIdentity(); 7716 try { 7717 // If we have an enabled packages list for a managed profile the packages 7718 // we should check are installed for the parent user. 7719 UserInfo user = getUserInfo(userIdToCheck); 7720 if (user.isManagedProfile()) { 7721 userIdToCheck = user.profileGroupId; 7722 } 7723 7724 for (String enabledPackage : enabledPackages) { 7725 boolean systemService = false; 7726 try { 7727 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 7728 enabledPackage, PackageManager.MATCH_UNINSTALLED_PACKAGES, 7729 userIdToCheck); 7730 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 7731 } catch (RemoteException e) { 7732 Log.i(LOG_TAG, "Can't talk to package managed", e); 7733 } 7734 if (!systemService && !permittedList.contains(enabledPackage)) { 7735 return false; 7736 } 7737 } 7738 } finally { 7739 mInjector.binderRestoreCallingIdentity(id); 7740 } 7741 return true; 7742 } 7743 7744 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 7745 // Not using AccessibilityManager.getInstance because that guesses 7746 // at the user you require based on callingUid and caches for a given 7747 // process. 7748 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 7749 IAccessibilityManager service = iBinder == null 7750 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 7751 return new AccessibilityManager(mContext, service, userId); 7752 } 7753 7754 @Override 7755 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 7756 if (!mHasFeature) { 7757 return false; 7758 } 7759 Preconditions.checkNotNull(who, "ComponentName is null"); 7760 7761 if (packageList != null) { 7762 int userId = UserHandle.getCallingUserId(); 7763 List<AccessibilityServiceInfo> enabledServices = null; 7764 long id = mInjector.binderClearCallingIdentity(); 7765 try { 7766 UserInfo user = getUserInfo(userId); 7767 if (user.isManagedProfile()) { 7768 userId = user.profileGroupId; 7769 } 7770 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 7771 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 7772 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 7773 } finally { 7774 mInjector.binderRestoreCallingIdentity(id); 7775 } 7776 7777 if (enabledServices != null) { 7778 List<String> enabledPackages = new ArrayList<String>(); 7779 for (AccessibilityServiceInfo service : enabledServices) { 7780 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 7781 } 7782 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7783 userId)) { 7784 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 7785 + "because it contains already enabled accesibility services."); 7786 return false; 7787 } 7788 } 7789 } 7790 7791 synchronized (this) { 7792 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7793 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7794 admin.permittedAccessiblityServices = packageList; 7795 saveSettingsLocked(UserHandle.getCallingUserId()); 7796 } 7797 return true; 7798 } 7799 7800 @Override 7801 public List getPermittedAccessibilityServices(ComponentName who) { 7802 if (!mHasFeature) { 7803 return null; 7804 } 7805 Preconditions.checkNotNull(who, "ComponentName is null"); 7806 7807 synchronized (this) { 7808 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7809 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7810 return admin.permittedAccessiblityServices; 7811 } 7812 } 7813 7814 @Override 7815 public List getPermittedAccessibilityServicesForUser(int userId) { 7816 if (!mHasFeature) { 7817 return null; 7818 } 7819 synchronized (this) { 7820 List<String> result = null; 7821 // If we have multiple profiles we return the intersection of the 7822 // permitted lists. This can happen in cases where we have a device 7823 // and profile owner. 7824 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 7825 for (int profileId : profileIds) { 7826 // Just loop though all admins, only device or profiles 7827 // owners can have permitted lists set. 7828 DevicePolicyData policy = getUserDataUnchecked(profileId); 7829 final int N = policy.mAdminList.size(); 7830 for (int j = 0; j < N; j++) { 7831 ActiveAdmin admin = policy.mAdminList.get(j); 7832 List<String> fromAdmin = admin.permittedAccessiblityServices; 7833 if (fromAdmin != null) { 7834 if (result == null) { 7835 result = new ArrayList<>(fromAdmin); 7836 } else { 7837 result.retainAll(fromAdmin); 7838 } 7839 } 7840 } 7841 } 7842 7843 // If we have a permitted list add all system accessibility services. 7844 if (result != null) { 7845 long id = mInjector.binderClearCallingIdentity(); 7846 try { 7847 UserInfo user = getUserInfo(userId); 7848 if (user.isManagedProfile()) { 7849 userId = user.profileGroupId; 7850 } 7851 AccessibilityManager accessibilityManager = 7852 getAccessibilityManagerForUser(userId); 7853 List<AccessibilityServiceInfo> installedServices = 7854 accessibilityManager.getInstalledAccessibilityServiceList(); 7855 7856 if (installedServices != null) { 7857 for (AccessibilityServiceInfo service : installedServices) { 7858 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 7859 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7860 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7861 result.add(serviceInfo.packageName); 7862 } 7863 } 7864 } 7865 } finally { 7866 mInjector.binderRestoreCallingIdentity(id); 7867 } 7868 } 7869 7870 return result; 7871 } 7872 } 7873 7874 @Override 7875 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 7876 int userHandle) { 7877 if (!mHasFeature) { 7878 return true; 7879 } 7880 Preconditions.checkNotNull(who, "ComponentName is null"); 7881 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7882 if (!isCallerWithSystemUid()){ 7883 throw new SecurityException( 7884 "Only the system can query if an accessibility service is disabled by admin"); 7885 } 7886 synchronized (this) { 7887 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7888 if (admin == null) { 7889 return false; 7890 } 7891 if (admin.permittedAccessiblityServices == null) { 7892 return true; 7893 } 7894 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 7895 admin.permittedAccessiblityServices, userHandle); 7896 } 7897 } 7898 7899 private boolean checkCallerIsCurrentUserOrProfile() { 7900 final int callingUserId = UserHandle.getCallingUserId(); 7901 final long token = mInjector.binderClearCallingIdentity(); 7902 try { 7903 UserInfo currentUser; 7904 UserInfo callingUser = getUserInfo(callingUserId); 7905 try { 7906 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7907 } catch (RemoteException e) { 7908 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 7909 return false; 7910 } 7911 7912 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 7913 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 7914 + "of a user that isn't the foreground user."); 7915 return false; 7916 } 7917 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 7918 Slog.e(LOG_TAG, "Cannot set permitted input methods " 7919 + "of a user that isn't the foreground user."); 7920 return false; 7921 } 7922 } finally { 7923 mInjector.binderRestoreCallingIdentity(token); 7924 } 7925 return true; 7926 } 7927 7928 @Override 7929 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 7930 if (!mHasFeature) { 7931 return false; 7932 } 7933 Preconditions.checkNotNull(who, "ComponentName is null"); 7934 7935 // TODO When InputMethodManager supports per user calls remove 7936 // this restriction. 7937 if (!checkCallerIsCurrentUserOrProfile()) { 7938 return false; 7939 } 7940 7941 final int callingUserId = mInjector.userHandleGetCallingUserId(); 7942 if (packageList != null) { 7943 // InputMethodManager fetches input methods for current user. 7944 // So this can only be set when calling user is the current user 7945 // or parent is current user in case of managed profiles. 7946 InputMethodManager inputMethodManager = 7947 mContext.getSystemService(InputMethodManager.class); 7948 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 7949 7950 if (enabledImes != null) { 7951 List<String> enabledPackages = new ArrayList<String>(); 7952 for (InputMethodInfo ime : enabledImes) { 7953 enabledPackages.add(ime.getPackageName()); 7954 } 7955 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7956 callingUserId)) { 7957 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 7958 + "because it contains already enabled input method."); 7959 return false; 7960 } 7961 } 7962 } 7963 7964 synchronized (this) { 7965 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7966 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7967 admin.permittedInputMethods = packageList; 7968 saveSettingsLocked(callingUserId); 7969 } 7970 return true; 7971 } 7972 7973 @Override 7974 public List getPermittedInputMethods(ComponentName who) { 7975 if (!mHasFeature) { 7976 return null; 7977 } 7978 Preconditions.checkNotNull(who, "ComponentName is null"); 7979 7980 synchronized (this) { 7981 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7982 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7983 return admin.permittedInputMethods; 7984 } 7985 } 7986 7987 @Override 7988 public List getPermittedInputMethodsForCurrentUser() { 7989 UserInfo currentUser; 7990 try { 7991 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7992 } catch (RemoteException e) { 7993 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 7994 // Activity managed is dead, just allow all IMEs 7995 return null; 7996 } 7997 7998 int userId = currentUser.id; 7999 synchronized (this) { 8000 List<String> result = null; 8001 // If we have multiple profiles we return the intersection of the 8002 // permitted lists. This can happen in cases where we have a device 8003 // and profile owner. 8004 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 8005 for (int profileId : profileIds) { 8006 // Just loop though all admins, only device or profiles 8007 // owners can have permitted lists set. 8008 DevicePolicyData policy = getUserDataUnchecked(profileId); 8009 final int N = policy.mAdminList.size(); 8010 for (int j = 0; j < N; j++) { 8011 ActiveAdmin admin = policy.mAdminList.get(j); 8012 List<String> fromAdmin = admin.permittedInputMethods; 8013 if (fromAdmin != null) { 8014 if (result == null) { 8015 result = new ArrayList<String>(fromAdmin); 8016 } else { 8017 result.retainAll(fromAdmin); 8018 } 8019 } 8020 } 8021 } 8022 8023 // If we have a permitted list add all system input methods. 8024 if (result != null) { 8025 InputMethodManager inputMethodManager = 8026 mContext.getSystemService(InputMethodManager.class); 8027 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 8028 long id = mInjector.binderClearCallingIdentity(); 8029 try { 8030 if (imes != null) { 8031 for (InputMethodInfo ime : imes) { 8032 ServiceInfo serviceInfo = ime.getServiceInfo(); 8033 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 8034 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 8035 result.add(serviceInfo.packageName); 8036 } 8037 } 8038 } 8039 } finally { 8040 mInjector.binderRestoreCallingIdentity(id); 8041 } 8042 } 8043 return result; 8044 } 8045 } 8046 8047 @Override 8048 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 8049 int userHandle) { 8050 if (!mHasFeature) { 8051 return true; 8052 } 8053 Preconditions.checkNotNull(who, "ComponentName is null"); 8054 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 8055 if (!isCallerWithSystemUid()) { 8056 throw new SecurityException( 8057 "Only the system can query if an input method is disabled by admin"); 8058 } 8059 synchronized (this) { 8060 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8061 if (admin == null) { 8062 return false; 8063 } 8064 if (admin.permittedInputMethods == null) { 8065 return true; 8066 } 8067 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 8068 admin.permittedInputMethods, userHandle); 8069 } 8070 } 8071 8072 @Override 8073 public boolean setPermittedCrossProfileNotificationListeners( 8074 ComponentName who, List<String> packageList) { 8075 if (!mHasFeature) { 8076 return false; 8077 } 8078 Preconditions.checkNotNull(who, "ComponentName is null"); 8079 8080 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8081 if (!isManagedProfile(callingUserId)) { 8082 return false; 8083 } 8084 8085 synchronized (this) { 8086 ActiveAdmin admin = getActiveAdminForCallerLocked( 8087 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8088 admin.permittedNotificationListeners = packageList; 8089 saveSettingsLocked(callingUserId); 8090 } 8091 return true; 8092 } 8093 8094 @Override 8095 public List<String> getPermittedCrossProfileNotificationListeners(ComponentName who) { 8096 if (!mHasFeature) { 8097 return null; 8098 } 8099 Preconditions.checkNotNull(who, "ComponentName is null"); 8100 8101 synchronized (this) { 8102 ActiveAdmin admin = getActiveAdminForCallerLocked( 8103 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8104 return admin.permittedNotificationListeners; 8105 } 8106 } 8107 8108 @Override 8109 public boolean isNotificationListenerServicePermitted(String packageName, int userId) { 8110 if (!mHasFeature) { 8111 return true; 8112 } 8113 8114 Preconditions.checkStringNotEmpty(packageName, "packageName is null or empty"); 8115 if (!isCallerWithSystemUid()) { 8116 throw new SecurityException( 8117 "Only the system can query if a notification listener service is permitted"); 8118 } 8119 synchronized (this) { 8120 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 8121 if (profileOwner == null || profileOwner.permittedNotificationListeners == null) { 8122 return true; 8123 } 8124 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 8125 profileOwner.permittedNotificationListeners, userId); 8126 8127 } 8128 } 8129 8130 private void maybeSendAdminEnabledBroadcastLocked(int userHandle) { 8131 DevicePolicyData policyData = getUserData(userHandle); 8132 if (policyData.mAdminBroadcastPending) { 8133 // Send the initialization data to profile owner and delete the data 8134 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 8135 boolean clearInitBundle = true; 8136 if (admin != null) { 8137 PersistableBundle initBundle = policyData.mInitBundle; 8138 clearInitBundle = sendAdminCommandLocked(admin, 8139 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 8140 initBundle == null ? null : new Bundle(initBundle), 8141 null /* result receiver */, 8142 true /* send in foreground */); 8143 } 8144 if (clearInitBundle) { 8145 // If there's no admin or we've successfully called the admin, clear the init bundle 8146 // otherwise, keep it around 8147 policyData.mInitBundle = null; 8148 policyData.mAdminBroadcastPending = false; 8149 saveSettingsLocked(userHandle); 8150 } 8151 } 8152 } 8153 8154 @Override 8155 public UserHandle createAndManageUser(ComponentName admin, String name, 8156 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 8157 Preconditions.checkNotNull(admin, "admin is null"); 8158 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 8159 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 8160 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 8161 + admin + " are not in the same package"); 8162 } 8163 // Only allow the system user to use this method 8164 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 8165 throw new SecurityException("createAndManageUser was called from non-system user"); 8166 } 8167 final boolean ephemeral = (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0; 8168 final boolean demo = (flags & DevicePolicyManager.MAKE_USER_DEMO) != 0 8169 && UserManager.isDeviceInDemoMode(mContext); 8170 // Create user. 8171 UserHandle user = null; 8172 synchronized (this) { 8173 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8174 8175 final long id = mInjector.binderClearCallingIdentity(); 8176 try { 8177 int userInfoFlags = 0; 8178 if (ephemeral) { 8179 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 8180 } 8181 if (demo) { 8182 userInfoFlags |= UserInfo.FLAG_DEMO; 8183 } 8184 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 8185 userInfoFlags); 8186 if (userInfo != null) { 8187 user = userInfo.getUserHandle(); 8188 } 8189 } finally { 8190 mInjector.binderRestoreCallingIdentity(id); 8191 } 8192 } 8193 if (user == null) { 8194 return null; 8195 } 8196 final long id = mInjector.binderClearCallingIdentity(); 8197 try { 8198 final String adminPkg = admin.getPackageName(); 8199 8200 final int userHandle = user.getIdentifier(); 8201 try { 8202 // Install the profile owner if not present. 8203 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 8204 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle, 8205 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8206 } 8207 } catch (RemoteException e) { 8208 // Does not happen, same process 8209 } 8210 8211 // Set admin. 8212 setActiveAdmin(profileOwner, true, userHandle); 8213 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 8214 setProfileOwner(profileOwner, ownerName, userHandle); 8215 8216 synchronized (this) { 8217 DevicePolicyData policyData = getUserData(userHandle); 8218 policyData.mInitBundle = adminExtras; 8219 policyData.mAdminBroadcastPending = true; 8220 saveSettingsLocked(userHandle); 8221 } 8222 8223 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 8224 Settings.Secure.putIntForUser(mContext.getContentResolver(), 8225 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 8226 } 8227 8228 if ((flags & START_USER_IN_BACKGROUND) != 0) { 8229 try { 8230 mInjector.getIActivityManager().startUserInBackground(user.getIdentifier()); 8231 } catch (RemoteException re) { 8232 // Does not happen, same process 8233 } 8234 } 8235 8236 return user; 8237 } catch (Throwable re) { 8238 mUserManager.removeUser(user.getIdentifier()); 8239 return null; 8240 } finally { 8241 mInjector.binderRestoreCallingIdentity(id); 8242 } 8243 } 8244 8245 @Override 8246 public boolean removeUser(ComponentName who, UserHandle userHandle) { 8247 Preconditions.checkNotNull(who, "ComponentName is null"); 8248 synchronized (this) { 8249 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8250 } 8251 8252 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8253 final long id = mInjector.binderClearCallingIdentity(); 8254 try { 8255 String restriction = isManagedProfile(userHandle.getIdentifier()) 8256 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE 8257 : UserManager.DISALLOW_REMOVE_USER; 8258 if (isAdminAffectedByRestriction(who, restriction, callingUserId)) { 8259 Log.w(LOG_TAG, "The device owner cannot remove a user because " 8260 + restriction + " is enabled, and was not set by the device owner"); 8261 return false; 8262 } 8263 return mUserManagerInternal.removeUserEvenWhenDisallowed(userHandle.getIdentifier()); 8264 } finally { 8265 mInjector.binderRestoreCallingIdentity(id); 8266 } 8267 } 8268 8269 private boolean isAdminAffectedByRestriction( 8270 ComponentName admin, String userRestriction, int userId) { 8271 switch(mUserManager.getUserRestrictionSource(userRestriction, UserHandle.of(userId))) { 8272 case UserManager.RESTRICTION_NOT_SET: 8273 return false; 8274 case UserManager.RESTRICTION_SOURCE_DEVICE_OWNER: 8275 return !isDeviceOwner(admin, userId); 8276 case UserManager.RESTRICTION_SOURCE_PROFILE_OWNER: 8277 return !isProfileOwner(admin, userId); 8278 default: 8279 return true; 8280 } 8281 } 8282 8283 @Override 8284 public boolean switchUser(ComponentName who, UserHandle userHandle) { 8285 Preconditions.checkNotNull(who, "ComponentName is null"); 8286 synchronized (this) { 8287 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8288 8289 long id = mInjector.binderClearCallingIdentity(); 8290 try { 8291 int userId = UserHandle.USER_SYSTEM; 8292 if (userHandle != null) { 8293 userId = userHandle.getIdentifier(); 8294 } 8295 return mInjector.getIActivityManager().switchUser(userId); 8296 } catch (RemoteException e) { 8297 Log.e(LOG_TAG, "Couldn't switch user", e); 8298 return false; 8299 } finally { 8300 mInjector.binderRestoreCallingIdentity(id); 8301 } 8302 } 8303 } 8304 8305 @Override 8306 public Bundle getApplicationRestrictions(ComponentName who, String callerPackage, 8307 String packageName) { 8308 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8309 DELEGATION_APP_RESTRICTIONS); 8310 8311 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 8312 final long id = mInjector.binderClearCallingIdentity(); 8313 try { 8314 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 8315 // if no restrictions were saved, mUserManager.getApplicationRestrictions 8316 // returns null, but DPM method should return an empty Bundle as per JavaDoc 8317 return bundle != null ? bundle : Bundle.EMPTY; 8318 } finally { 8319 mInjector.binderRestoreCallingIdentity(id); 8320 } 8321 } 8322 8323 @Override 8324 public String[] setPackagesSuspended(ComponentName who, String callerPackage, 8325 String[] packageNames, boolean suspended) { 8326 int callingUserId = UserHandle.getCallingUserId(); 8327 synchronized (this) { 8328 // Ensure the caller is a DO/PO or a package access delegate. 8329 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8330 DELEGATION_PACKAGE_ACCESS); 8331 8332 long id = mInjector.binderClearCallingIdentity(); 8333 try { 8334 return mIPackageManager.setPackagesSuspendedAsUser( 8335 packageNames, suspended, callingUserId); 8336 } catch (RemoteException re) { 8337 // Shouldn't happen. 8338 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 8339 } finally { 8340 mInjector.binderRestoreCallingIdentity(id); 8341 } 8342 return packageNames; 8343 } 8344 } 8345 8346 @Override 8347 public boolean isPackageSuspended(ComponentName who, String callerPackage, String packageName) { 8348 int callingUserId = UserHandle.getCallingUserId(); 8349 synchronized (this) { 8350 // Ensure the caller is a DO/PO or a package access delegate. 8351 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8352 DELEGATION_PACKAGE_ACCESS); 8353 8354 long id = mInjector.binderClearCallingIdentity(); 8355 try { 8356 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 8357 } catch (RemoteException re) { 8358 // Shouldn't happen. 8359 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 8360 } finally { 8361 mInjector.binderRestoreCallingIdentity(id); 8362 } 8363 return false; 8364 } 8365 } 8366 8367 @Override 8368 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 8369 Preconditions.checkNotNull(who, "ComponentName is null"); 8370 if (!UserRestrictionsUtils.isValidRestriction(key)) { 8371 return; 8372 } 8373 8374 final int userHandle = mInjector.userHandleGetCallingUserId(); 8375 synchronized (this) { 8376 final ActiveAdmin activeAdmin = 8377 getActiveAdminForCallerLocked(who, 8378 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8379 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 8380 if (isDeviceOwner) { 8381 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 8382 throw new SecurityException("Device owner cannot set user restriction " + key); 8383 } 8384 } else { // profile owner 8385 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 8386 throw new SecurityException("Profile owner cannot set user restriction " + key); 8387 } 8388 } 8389 8390 // Save the restriction to ActiveAdmin. 8391 final Bundle restrictions = activeAdmin.ensureUserRestrictions(); 8392 if (enabledFromThisOwner) { 8393 restrictions.putBoolean(key, true); 8394 } else { 8395 restrictions.remove(key); 8396 } 8397 saveUserRestrictionsLocked(userHandle); 8398 } 8399 } 8400 8401 private void saveUserRestrictionsLocked(int userId) { 8402 saveSettingsLocked(userId); 8403 pushUserRestrictions(userId); 8404 sendChangedNotification(userId); 8405 } 8406 8407 private void pushUserRestrictions(int userId) { 8408 synchronized (this) { 8409 final boolean isDeviceOwner = mOwners.isDeviceOwnerUserId(userId); 8410 final Bundle userRestrictions; 8411 // Whether device owner enforces camera restriction. 8412 boolean disallowCameraGlobally = false; 8413 8414 if (isDeviceOwner) { 8415 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 8416 if (deviceOwner == null) { 8417 return; // Shouldn't happen. 8418 } 8419 userRestrictions = deviceOwner.userRestrictions; 8420 // DO can disable camera globally. 8421 disallowCameraGlobally = deviceOwner.disableCamera; 8422 } else { 8423 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 8424 userRestrictions = profileOwner != null ? profileOwner.userRestrictions : null; 8425 } 8426 8427 // Whether any admin enforces camera restriction. 8428 final int cameraRestrictionScope = 8429 getCameraRestrictionScopeLocked(userId, disallowCameraGlobally); 8430 8431 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, userRestrictions, 8432 isDeviceOwner, cameraRestrictionScope); 8433 } 8434 } 8435 8436 /** 8437 * Get the scope of camera restriction for a given user if any. 8438 */ 8439 private int getCameraRestrictionScopeLocked(int userId, boolean disallowCameraGlobally) { 8440 if (disallowCameraGlobally) { 8441 return UserManagerInternal.CAMERA_DISABLED_GLOBALLY; 8442 } else if (getCameraDisabled( 8443 /* who= */ null, userId, /* mergeDeviceOwnerRestriction= */ false)) { 8444 return UserManagerInternal.CAMERA_DISABLED_LOCALLY; 8445 } 8446 return UserManagerInternal.CAMERA_NOT_DISABLED; 8447 } 8448 8449 @Override 8450 public Bundle getUserRestrictions(ComponentName who) { 8451 if (!mHasFeature) { 8452 return null; 8453 } 8454 Preconditions.checkNotNull(who, "ComponentName is null"); 8455 synchronized (this) { 8456 final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who, 8457 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8458 return activeAdmin.userRestrictions; 8459 } 8460 } 8461 8462 @Override 8463 public boolean setApplicationHidden(ComponentName who, String callerPackage, String packageName, 8464 boolean hidden) { 8465 int callingUserId = UserHandle.getCallingUserId(); 8466 synchronized (this) { 8467 // Ensure the caller is a DO/PO or a package access delegate. 8468 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8469 DELEGATION_PACKAGE_ACCESS); 8470 8471 long id = mInjector.binderClearCallingIdentity(); 8472 try { 8473 return mIPackageManager.setApplicationHiddenSettingAsUser( 8474 packageName, hidden, callingUserId); 8475 } catch (RemoteException re) { 8476 // shouldn't happen 8477 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 8478 } finally { 8479 mInjector.binderRestoreCallingIdentity(id); 8480 } 8481 return false; 8482 } 8483 } 8484 8485 @Override 8486 public boolean isApplicationHidden(ComponentName who, String callerPackage, 8487 String packageName) { 8488 int callingUserId = UserHandle.getCallingUserId(); 8489 synchronized (this) { 8490 // Ensure the caller is a DO/PO or a package access delegate. 8491 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8492 DELEGATION_PACKAGE_ACCESS); 8493 8494 long id = mInjector.binderClearCallingIdentity(); 8495 try { 8496 return mIPackageManager.getApplicationHiddenSettingAsUser( 8497 packageName, callingUserId); 8498 } catch (RemoteException re) { 8499 // shouldn't happen 8500 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 8501 } finally { 8502 mInjector.binderRestoreCallingIdentity(id); 8503 } 8504 return false; 8505 } 8506 } 8507 8508 @Override 8509 public void enableSystemApp(ComponentName who, String callerPackage, String packageName) { 8510 synchronized (this) { 8511 // Ensure the caller is a DO/PO or an enable system app delegate. 8512 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8513 DELEGATION_ENABLE_SYSTEM_APP); 8514 8515 final boolean isDemo = isCurrentUserDemo(); 8516 8517 int userId = UserHandle.getCallingUserId(); 8518 long id = mInjector.binderClearCallingIdentity(); 8519 8520 try { 8521 if (VERBOSE_LOG) { 8522 Slog.v(LOG_TAG, "installing " + packageName + " for " 8523 + userId); 8524 } 8525 8526 int parentUserId = getProfileParentId(userId); 8527 if (!isDemo && !isSystemApp(mIPackageManager, packageName, parentUserId)) { 8528 throw new IllegalArgumentException("Only system apps can be enabled this way."); 8529 } 8530 8531 // Install the app. 8532 mIPackageManager.installExistingPackageAsUser(packageName, userId, 8533 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8534 if (isDemo) { 8535 // Ensure the app is also ENABLED for demo users. 8536 mIPackageManager.setApplicationEnabledSetting(packageName, 8537 PackageManager.COMPONENT_ENABLED_STATE_ENABLED, 8538 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 8539 } 8540 } catch (RemoteException re) { 8541 // shouldn't happen 8542 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 8543 } finally { 8544 mInjector.binderRestoreCallingIdentity(id); 8545 } 8546 } 8547 } 8548 8549 @Override 8550 public int enableSystemAppWithIntent(ComponentName who, String callerPackage, Intent intent) { 8551 synchronized (this) { 8552 // Ensure the caller is a DO/PO or an enable system app delegate. 8553 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8554 DELEGATION_ENABLE_SYSTEM_APP); 8555 8556 int userId = UserHandle.getCallingUserId(); 8557 long id = mInjector.binderClearCallingIdentity(); 8558 8559 try { 8560 int parentUserId = getProfileParentId(userId); 8561 List<ResolveInfo> activitiesToEnable = mIPackageManager 8562 .queryIntentActivities(intent, 8563 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 8564 PackageManager.MATCH_DIRECT_BOOT_AWARE 8565 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 8566 parentUserId) 8567 .getList(); 8568 8569 if (VERBOSE_LOG) { 8570 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 8571 } 8572 int numberOfAppsInstalled = 0; 8573 if (activitiesToEnable != null) { 8574 for (ResolveInfo info : activitiesToEnable) { 8575 if (info.activityInfo != null) { 8576 String packageName = info.activityInfo.packageName; 8577 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 8578 numberOfAppsInstalled++; 8579 mIPackageManager.installExistingPackageAsUser(packageName, userId, 8580 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8581 } else { 8582 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 8583 + " system app"); 8584 } 8585 } 8586 } 8587 } 8588 return numberOfAppsInstalled; 8589 } catch (RemoteException e) { 8590 // shouldn't happen 8591 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 8592 return 0; 8593 } finally { 8594 mInjector.binderRestoreCallingIdentity(id); 8595 } 8596 } 8597 } 8598 8599 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 8600 throws RemoteException { 8601 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, MATCH_UNINSTALLED_PACKAGES, 8602 userId); 8603 if (appInfo == null) { 8604 throw new IllegalArgumentException("The application " + packageName + 8605 " is not present on this device"); 8606 } 8607 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 8608 } 8609 8610 @Override 8611 public void setAccountManagementDisabled(ComponentName who, String accountType, 8612 boolean disabled) { 8613 if (!mHasFeature) { 8614 return; 8615 } 8616 Preconditions.checkNotNull(who, "ComponentName is null"); 8617 synchronized (this) { 8618 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 8619 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8620 if (disabled) { 8621 ap.accountTypesWithManagementDisabled.add(accountType); 8622 } else { 8623 ap.accountTypesWithManagementDisabled.remove(accountType); 8624 } 8625 saveSettingsLocked(UserHandle.getCallingUserId()); 8626 } 8627 } 8628 8629 @Override 8630 public String[] getAccountTypesWithManagementDisabled() { 8631 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 8632 } 8633 8634 @Override 8635 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 8636 enforceFullCrossUsersPermission(userId); 8637 if (!mHasFeature) { 8638 return null; 8639 } 8640 synchronized (this) { 8641 DevicePolicyData policy = getUserData(userId); 8642 final int N = policy.mAdminList.size(); 8643 ArraySet<String> resultSet = new ArraySet<>(); 8644 for (int i = 0; i < N; i++) { 8645 ActiveAdmin admin = policy.mAdminList.get(i); 8646 resultSet.addAll(admin.accountTypesWithManagementDisabled); 8647 } 8648 return resultSet.toArray(new String[resultSet.size()]); 8649 } 8650 } 8651 8652 @Override 8653 public void setUninstallBlocked(ComponentName who, String callerPackage, String packageName, 8654 boolean uninstallBlocked) { 8655 final int userId = UserHandle.getCallingUserId(); 8656 synchronized (this) { 8657 // Ensure the caller is a DO/PO or a block uninstall delegate 8658 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8659 DELEGATION_BLOCK_UNINSTALL); 8660 8661 long id = mInjector.binderClearCallingIdentity(); 8662 try { 8663 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 8664 } catch (RemoteException re) { 8665 // Shouldn't happen. 8666 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 8667 } finally { 8668 mInjector.binderRestoreCallingIdentity(id); 8669 } 8670 } 8671 } 8672 8673 @Override 8674 public boolean isUninstallBlocked(ComponentName who, String packageName) { 8675 // This function should return true if and only if the package is blocked by 8676 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 8677 // when the package is a system app, or when it is an active device admin. 8678 final int userId = UserHandle.getCallingUserId(); 8679 8680 synchronized (this) { 8681 if (who != null) { 8682 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8683 } 8684 8685 long id = mInjector.binderClearCallingIdentity(); 8686 try { 8687 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 8688 } catch (RemoteException re) { 8689 // Shouldn't happen. 8690 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 8691 } finally { 8692 mInjector.binderRestoreCallingIdentity(id); 8693 } 8694 } 8695 return false; 8696 } 8697 8698 @Override 8699 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 8700 if (!mHasFeature) { 8701 return; 8702 } 8703 Preconditions.checkNotNull(who, "ComponentName is null"); 8704 synchronized (this) { 8705 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8706 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8707 if (admin.disableCallerId != disabled) { 8708 admin.disableCallerId = disabled; 8709 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 8710 } 8711 } 8712 } 8713 8714 @Override 8715 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 8716 if (!mHasFeature) { 8717 return false; 8718 } 8719 Preconditions.checkNotNull(who, "ComponentName is null"); 8720 synchronized (this) { 8721 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8722 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8723 return admin.disableCallerId; 8724 } 8725 } 8726 8727 @Override 8728 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 8729 enforceCrossUsersPermission(userId); 8730 synchronized (this) { 8731 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8732 return (admin != null) ? admin.disableCallerId : false; 8733 } 8734 } 8735 8736 @Override 8737 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 8738 if (!mHasFeature) { 8739 return; 8740 } 8741 Preconditions.checkNotNull(who, "ComponentName is null"); 8742 synchronized (this) { 8743 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8744 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8745 if (admin.disableContactsSearch != disabled) { 8746 admin.disableContactsSearch = disabled; 8747 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 8748 } 8749 } 8750 } 8751 8752 @Override 8753 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 8754 if (!mHasFeature) { 8755 return false; 8756 } 8757 Preconditions.checkNotNull(who, "ComponentName is null"); 8758 synchronized (this) { 8759 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8760 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8761 return admin.disableContactsSearch; 8762 } 8763 } 8764 8765 @Override 8766 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 8767 enforceCrossUsersPermission(userId); 8768 synchronized (this) { 8769 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8770 return (admin != null) ? admin.disableContactsSearch : false; 8771 } 8772 } 8773 8774 @Override 8775 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 8776 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 8777 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 8778 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 8779 final int callingUserId = UserHandle.getCallingUserId(); 8780 8781 final long ident = mInjector.binderClearCallingIdentity(); 8782 try { 8783 synchronized (this) { 8784 final int managedUserId = getManagedUserId(callingUserId); 8785 if (managedUserId < 0) { 8786 return; 8787 } 8788 if (isCrossProfileQuickContactDisabled(managedUserId)) { 8789 if (VERBOSE_LOG) { 8790 Log.v(LOG_TAG, 8791 "Cross-profile contacts access disabled for user " + managedUserId); 8792 } 8793 return; 8794 } 8795 ContactsInternal.startQuickContactWithErrorToastForUser( 8796 mContext, intent, new UserHandle(managedUserId)); 8797 } 8798 } finally { 8799 mInjector.binderRestoreCallingIdentity(ident); 8800 } 8801 } 8802 8803 /** 8804 * @return true if cross-profile QuickContact is disabled 8805 */ 8806 private boolean isCrossProfileQuickContactDisabled(int userId) { 8807 return getCrossProfileCallerIdDisabledForUser(userId) 8808 && getCrossProfileContactsSearchDisabledForUser(userId); 8809 } 8810 8811 /** 8812 * @return the user ID of the managed user that is linked to the current user, if any. 8813 * Otherwise -1. 8814 */ 8815 public int getManagedUserId(int callingUserId) { 8816 if (VERBOSE_LOG) { 8817 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 8818 } 8819 8820 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 8821 if (ui.id == callingUserId || !ui.isManagedProfile()) { 8822 continue; // Caller user self, or not a managed profile. Skip. 8823 } 8824 if (VERBOSE_LOG) { 8825 Log.v(LOG_TAG, "Managed user=" + ui.id); 8826 } 8827 return ui.id; 8828 } 8829 if (VERBOSE_LOG) { 8830 Log.v(LOG_TAG, "Managed user not found."); 8831 } 8832 return -1; 8833 } 8834 8835 @Override 8836 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 8837 if (!mHasFeature) { 8838 return; 8839 } 8840 Preconditions.checkNotNull(who, "ComponentName is null"); 8841 synchronized (this) { 8842 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8843 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8844 if (admin.disableBluetoothContactSharing != disabled) { 8845 admin.disableBluetoothContactSharing = disabled; 8846 saveSettingsLocked(UserHandle.getCallingUserId()); 8847 } 8848 } 8849 } 8850 8851 @Override 8852 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 8853 if (!mHasFeature) { 8854 return false; 8855 } 8856 Preconditions.checkNotNull(who, "ComponentName is null"); 8857 synchronized (this) { 8858 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8859 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8860 return admin.disableBluetoothContactSharing; 8861 } 8862 } 8863 8864 @Override 8865 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 8866 // TODO: Should there be a check to make sure this relationship is 8867 // within a profile group? 8868 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 8869 synchronized (this) { 8870 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8871 return (admin != null) ? admin.disableBluetoothContactSharing : false; 8872 } 8873 } 8874 8875 @Override 8876 public void setLockTaskPackages(ComponentName who, String[] packages) 8877 throws SecurityException { 8878 Preconditions.checkNotNull(who, "ComponentName is null"); 8879 Preconditions.checkNotNull(packages, "packages is null"); 8880 8881 synchronized (this) { 8882 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8883 final int userHandle = mInjector.userHandleGetCallingUserId(); 8884 if (isUserAffiliatedWithDeviceLocked(userHandle)) { 8885 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 8886 } else { 8887 throw new SecurityException("Admin " + who + 8888 " is neither the device owner or affiliated user's profile owner."); 8889 } 8890 } 8891 } 8892 8893 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 8894 DevicePolicyData policy = getUserData(userHandle); 8895 policy.mLockTaskPackages = packages; 8896 8897 // Store the settings persistently. 8898 saveSettingsLocked(userHandle); 8899 updateLockTaskPackagesLocked(packages, userHandle); 8900 } 8901 8902 private void maybeClearLockTaskPackagesLocked() { 8903 final long ident = mInjector.binderClearCallingIdentity(); 8904 try { 8905 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 8906 for (int i = 0; i < userInfos.size(); i++) { 8907 int userId = userInfos.get(i).id; 8908 final List<String> lockTaskPackages = getUserData(userId).mLockTaskPackages; 8909 if (!lockTaskPackages.isEmpty() && 8910 !isUserAffiliatedWithDeviceLocked(userId)) { 8911 Slog.d(LOG_TAG, 8912 "User id " + userId + " not affiliated. Clearing lock task packages"); 8913 setLockTaskPackagesLocked(userId, Collections.<String>emptyList()); 8914 } 8915 } 8916 } finally { 8917 mInjector.binderRestoreCallingIdentity(ident); 8918 } 8919 } 8920 8921 @Override 8922 public String[] getLockTaskPackages(ComponentName who) { 8923 Preconditions.checkNotNull(who, "ComponentName is null"); 8924 8925 final int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 8926 synchronized (this) { 8927 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8928 if (!isUserAffiliatedWithDeviceLocked(userHandle)) { 8929 throw new SecurityException("Admin " + who + 8930 " is neither the device owner or affiliated user's profile owner."); 8931 } 8932 8933 final List<String> packages = getUserData(userHandle).mLockTaskPackages; 8934 return packages.toArray(new String[packages.size()]); 8935 } 8936 } 8937 8938 @Override 8939 public boolean isLockTaskPermitted(String pkg) { 8940 final int userHandle = mInjector.userHandleGetCallingUserId(); 8941 synchronized (this) { 8942 return getUserData(userHandle).mLockTaskPackages.contains(pkg); 8943 } 8944 } 8945 8946 @Override 8947 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 8948 if (!isCallerWithSystemUid()) { 8949 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 8950 } 8951 synchronized (this) { 8952 final DevicePolicyData policy = getUserData(userHandle); 8953 Bundle adminExtras = new Bundle(); 8954 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 8955 for (ActiveAdmin admin : policy.mAdminList) { 8956 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 8957 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 8958 if (ownsDevice || ownsProfile) { 8959 if (isEnabled) { 8960 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 8961 adminExtras, null); 8962 } else { 8963 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 8964 } 8965 } 8966 } 8967 } 8968 } 8969 8970 @Override 8971 public void setGlobalSetting(ComponentName who, String setting, String value) { 8972 Preconditions.checkNotNull(who, "ComponentName is null"); 8973 8974 synchronized (this) { 8975 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8976 8977 // Some settings are no supported any more. However we do not want to throw a 8978 // SecurityException to avoid breaking apps. 8979 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 8980 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 8981 return; 8982 } 8983 8984 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting) 8985 && !UserManager.isDeviceInDemoMode(mContext)) { 8986 throw new SecurityException(String.format( 8987 "Permission denial: device owners cannot update %1$s", setting)); 8988 } 8989 8990 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 8991 // ignore if it contradicts an existing policy 8992 long timeMs = getMaximumTimeToLock( 8993 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 8994 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 8995 return; 8996 } 8997 } 8998 8999 long id = mInjector.binderClearCallingIdentity(); 9000 try { 9001 mInjector.settingsGlobalPutString(setting, value); 9002 } finally { 9003 mInjector.binderRestoreCallingIdentity(id); 9004 } 9005 } 9006 } 9007 9008 @Override 9009 public void setSecureSetting(ComponentName who, String setting, String value) { 9010 Preconditions.checkNotNull(who, "ComponentName is null"); 9011 int callingUserId = mInjector.userHandleGetCallingUserId(); 9012 9013 synchronized (this) { 9014 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9015 9016 if (isDeviceOwner(who, callingUserId)) { 9017 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting) 9018 && !isCurrentUserDemo()) { 9019 throw new SecurityException(String.format( 9020 "Permission denial: Device owners cannot update %1$s", setting)); 9021 } 9022 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting) && !isCurrentUserDemo()) { 9023 throw new SecurityException(String.format( 9024 "Permission denial: Profile owners cannot update %1$s", setting)); 9025 } 9026 if (setting.equals(Settings.Secure.INSTALL_NON_MARKET_APPS)) { 9027 if (getTargetSdk(who.getPackageName(), callingUserId) >= Build.VERSION_CODES.O) { 9028 throw new UnsupportedOperationException(Settings.Secure.INSTALL_NON_MARKET_APPS 9029 + " is deprecated. Please use the user restriction " 9030 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES + " instead."); 9031 } 9032 if (!mUserManager.isManagedProfile(callingUserId)) { 9033 Slog.e(LOG_TAG, "Ignoring setSecureSetting request for " 9034 + setting + ". User restriction " 9035 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES 9036 + " should be used instead."); 9037 } else { 9038 try { 9039 setUserRestriction(who, UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, 9040 (Integer.parseInt(value) == 0) ? true : false); 9041 } catch (NumberFormatException exc) { 9042 Slog.e(LOG_TAG, "Invalid value: " + value + " for setting " + setting); 9043 } 9044 } 9045 return; 9046 } 9047 long id = mInjector.binderClearCallingIdentity(); 9048 try { 9049 if (Settings.Secure.DEFAULT_INPUT_METHOD.equals(setting)) { 9050 final String currentValue = mInjector.settingsSecureGetStringForUser( 9051 Settings.Secure.DEFAULT_INPUT_METHOD, callingUserId); 9052 if (!TextUtils.equals(currentValue, value)) { 9053 // Tell the content observer that the next change will be due to the owner 9054 // changing the value. There is a small race condition here that we cannot 9055 // avoid: Change notifications are sent asynchronously, so it is possible 9056 // that there are prior notifications queued up before the one we are about 9057 // to trigger. This is a corner case that will have no impact in practice. 9058 mSetupContentObserver.addPendingChangeByOwnerLocked(callingUserId); 9059 } 9060 getUserData(callingUserId).mCurrentInputMethodSet = true; 9061 saveSettingsLocked(callingUserId); 9062 } 9063 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 9064 } finally { 9065 mInjector.binderRestoreCallingIdentity(id); 9066 } 9067 } 9068 } 9069 9070 @Override 9071 public void setMasterVolumeMuted(ComponentName who, boolean on) { 9072 Preconditions.checkNotNull(who, "ComponentName is null"); 9073 synchronized (this) { 9074 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9075 setUserRestriction(who, UserManager.DISALLOW_UNMUTE_DEVICE, on); 9076 } 9077 } 9078 9079 @Override 9080 public boolean isMasterVolumeMuted(ComponentName who) { 9081 Preconditions.checkNotNull(who, "ComponentName is null"); 9082 synchronized (this) { 9083 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9084 9085 AudioManager audioManager = 9086 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 9087 return audioManager.isMasterMute(); 9088 } 9089 } 9090 9091 @Override 9092 public void setUserIcon(ComponentName who, Bitmap icon) { 9093 synchronized (this) { 9094 Preconditions.checkNotNull(who, "ComponentName is null"); 9095 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9096 9097 int userId = UserHandle.getCallingUserId(); 9098 long id = mInjector.binderClearCallingIdentity(); 9099 try { 9100 mUserManagerInternal.setUserIcon(userId, icon); 9101 } finally { 9102 mInjector.binderRestoreCallingIdentity(id); 9103 } 9104 } 9105 } 9106 9107 @Override 9108 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 9109 Preconditions.checkNotNull(who, "ComponentName is null"); 9110 synchronized (this) { 9111 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9112 } 9113 final int userId = UserHandle.getCallingUserId(); 9114 9115 long ident = mInjector.binderClearCallingIdentity(); 9116 try { 9117 // disallow disabling the keyguard if a password is currently set 9118 if (disabled && mLockPatternUtils.isSecure(userId)) { 9119 return false; 9120 } 9121 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 9122 mInjector.getIWindowManager().dismissKeyguard(null); 9123 } catch (RemoteException e) { 9124 // Same process, does not happen. 9125 } finally { 9126 mInjector.binderRestoreCallingIdentity(ident); 9127 } 9128 return true; 9129 } 9130 9131 @Override 9132 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 9133 int userId = UserHandle.getCallingUserId(); 9134 synchronized (this) { 9135 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9136 DevicePolicyData policy = getUserData(userId); 9137 if (policy.mStatusBarDisabled != disabled) { 9138 if (!setStatusBarDisabledInternal(disabled, userId)) { 9139 return false; 9140 } 9141 policy.mStatusBarDisabled = disabled; 9142 saveSettingsLocked(userId); 9143 } 9144 } 9145 return true; 9146 } 9147 9148 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 9149 long ident = mInjector.binderClearCallingIdentity(); 9150 try { 9151 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 9152 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 9153 if (statusBarService != null) { 9154 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 9155 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 9156 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 9157 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 9158 return true; 9159 } 9160 } catch (RemoteException e) { 9161 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 9162 } finally { 9163 mInjector.binderRestoreCallingIdentity(ident); 9164 } 9165 return false; 9166 } 9167 9168 /** 9169 * We need to update the internal state of whether a user has completed setup or a 9170 * device has paired once. After that, we ignore any changes that reset the 9171 * Settings.Secure.USER_SETUP_COMPLETE or Settings.Secure.DEVICE_PAIRED change 9172 * as we don't trust any apps that might try to reset them. 9173 * <p> 9174 * Unfortunately, we don't know which user's setup state was changed, so we write all of 9175 * them. 9176 */ 9177 void updateUserSetupCompleteAndPaired() { 9178 List<UserInfo> users = mUserManager.getUsers(true); 9179 final int N = users.size(); 9180 for (int i = 0; i < N; i++) { 9181 int userHandle = users.get(i).id; 9182 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 9183 userHandle) != 0) { 9184 DevicePolicyData policy = getUserData(userHandle); 9185 if (!policy.mUserSetupComplete) { 9186 policy.mUserSetupComplete = true; 9187 synchronized (this) { 9188 saveSettingsLocked(userHandle); 9189 } 9190 } 9191 } 9192 if (mIsWatch && mInjector.settingsSecureGetIntForUser(Settings.Secure.DEVICE_PAIRED, 0, 9193 userHandle) != 0) { 9194 DevicePolicyData policy = getUserData(userHandle); 9195 if (!policy.mPaired) { 9196 policy.mPaired = true; 9197 synchronized (this) { 9198 saveSettingsLocked(userHandle); 9199 } 9200 } 9201 } 9202 } 9203 } 9204 9205 private class SetupContentObserver extends ContentObserver { 9206 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 9207 Settings.Secure.USER_SETUP_COMPLETE); 9208 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 9209 Settings.Global.DEVICE_PROVISIONED); 9210 private final Uri mPaired = Settings.Secure.getUriFor(Settings.Secure.DEVICE_PAIRED); 9211 private final Uri mDefaultImeChanged = Settings.Secure.getUriFor( 9212 Settings.Secure.DEFAULT_INPUT_METHOD); 9213 9214 @GuardedBy("DevicePolicyManagerService.this") 9215 private Set<Integer> mUserIdsWithPendingChangesByOwner = new ArraySet<>(); 9216 9217 public SetupContentObserver(Handler handler) { 9218 super(handler); 9219 } 9220 9221 void register() { 9222 mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 9223 mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 9224 if (mIsWatch) { 9225 mInjector.registerContentObserver(mPaired, false, this, UserHandle.USER_ALL); 9226 } 9227 mInjector.registerContentObserver(mDefaultImeChanged, false, this, UserHandle.USER_ALL); 9228 } 9229 9230 private void addPendingChangeByOwnerLocked(int userId) { 9231 mUserIdsWithPendingChangesByOwner.add(userId); 9232 } 9233 9234 @Override 9235 public void onChange(boolean selfChange, Uri uri, int userId) { 9236 if (mUserSetupComplete.equals(uri) || (mIsWatch && mPaired.equals(uri))) { 9237 updateUserSetupCompleteAndPaired(); 9238 } else if (mDeviceProvisioned.equals(uri)) { 9239 synchronized (DevicePolicyManagerService.this) { 9240 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 9241 // is delayed until device is marked as provisioned. 9242 setDeviceOwnerSystemPropertyLocked(); 9243 } 9244 } else if (mDefaultImeChanged.equals(uri)) { 9245 synchronized (DevicePolicyManagerService.this) { 9246 if (mUserIdsWithPendingChangesByOwner.contains(userId)) { 9247 // This change notification was triggered by the owner changing the current 9248 // IME. Ignore it. 9249 mUserIdsWithPendingChangesByOwner.remove(userId); 9250 } else { 9251 // This change notification was triggered by the user manually changing the 9252 // current IME. 9253 getUserData(userId).mCurrentInputMethodSet = false; 9254 saveSettingsLocked(userId); 9255 } 9256 } 9257 } 9258 } 9259 } 9260 9261 @VisibleForTesting 9262 final class LocalService extends DevicePolicyManagerInternal { 9263 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 9264 9265 @Override 9266 public List<String> getCrossProfileWidgetProviders(int profileId) { 9267 synchronized (DevicePolicyManagerService.this) { 9268 if (mOwners == null) { 9269 return Collections.emptyList(); 9270 } 9271 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 9272 if (ownerComponent == null) { 9273 return Collections.emptyList(); 9274 } 9275 9276 DevicePolicyData policy = getUserDataUnchecked(profileId); 9277 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 9278 9279 if (admin == null || admin.crossProfileWidgetProviders == null 9280 || admin.crossProfileWidgetProviders.isEmpty()) { 9281 return Collections.emptyList(); 9282 } 9283 9284 return admin.crossProfileWidgetProviders; 9285 } 9286 } 9287 9288 @Override 9289 public void addOnCrossProfileWidgetProvidersChangeListener( 9290 OnCrossProfileWidgetProvidersChangeListener listener) { 9291 synchronized (DevicePolicyManagerService.this) { 9292 if (mWidgetProviderListeners == null) { 9293 mWidgetProviderListeners = new ArrayList<>(); 9294 } 9295 if (!mWidgetProviderListeners.contains(listener)) { 9296 mWidgetProviderListeners.add(listener); 9297 } 9298 } 9299 } 9300 9301 @Override 9302 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 9303 synchronized(DevicePolicyManagerService.this) { 9304 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 9305 } 9306 } 9307 9308 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 9309 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 9310 synchronized (DevicePolicyManagerService.this) { 9311 listeners = new ArrayList<>(mWidgetProviderListeners); 9312 } 9313 final int listenerCount = listeners.size(); 9314 for (int i = 0; i < listenerCount; i++) { 9315 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 9316 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 9317 } 9318 } 9319 9320 @Override 9321 public Intent createShowAdminSupportIntent(int userId, boolean useDefaultIfNoAdmin) { 9322 // This method is called from AM with its lock held, so don't take the DPMS lock. 9323 // b/29242568 9324 9325 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 9326 if (profileOwner != null) { 9327 return DevicePolicyManagerService.this 9328 .createShowAdminSupportIntent(profileOwner, userId); 9329 } 9330 9331 final Pair<Integer, ComponentName> deviceOwner = 9332 mOwners.getDeviceOwnerUserIdAndComponent(); 9333 if (deviceOwner != null && deviceOwner.first == userId) { 9334 return DevicePolicyManagerService.this 9335 .createShowAdminSupportIntent(deviceOwner.second, userId); 9336 } 9337 9338 // We're not specifying the device admin because there isn't one. 9339 if (useDefaultIfNoAdmin) { 9340 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 9341 } 9342 return null; 9343 } 9344 9345 @Override 9346 public Intent createUserRestrictionSupportIntent(int userId, String userRestriction) { 9347 int source; 9348 long ident = mInjector.binderClearCallingIdentity(); 9349 try { 9350 source = mUserManager.getUserRestrictionSource(userRestriction, 9351 UserHandle.of(userId)); 9352 } finally { 9353 mInjector.binderRestoreCallingIdentity(ident); 9354 } 9355 if ((source & UserManager.RESTRICTION_SOURCE_SYSTEM) != 0) { 9356 /* 9357 * In this case, the user restriction is enforced by the system. 9358 * So we won't show an admin support intent, even if it is also 9359 * enforced by a profile/device owner. 9360 */ 9361 return null; 9362 } 9363 boolean enforcedByDo = (source & UserManager.RESTRICTION_SOURCE_DEVICE_OWNER) != 0; 9364 boolean enforcedByPo = (source & UserManager.RESTRICTION_SOURCE_PROFILE_OWNER) != 0; 9365 if (enforcedByDo && enforcedByPo) { 9366 // In this case, we'll show an admin support dialog that does not 9367 // specify the admin. 9368 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 9369 } else if (enforcedByPo) { 9370 final ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 9371 if (profileOwner != null) { 9372 return DevicePolicyManagerService.this 9373 .createShowAdminSupportIntent(profileOwner, userId); 9374 } 9375 // This could happen if another thread has changed the profile owner since we called 9376 // getUserRestrictionSource 9377 return null; 9378 } else if (enforcedByDo) { 9379 final Pair<Integer, ComponentName> deviceOwner 9380 = mOwners.getDeviceOwnerUserIdAndComponent(); 9381 if (deviceOwner != null) { 9382 return DevicePolicyManagerService.this 9383 .createShowAdminSupportIntent(deviceOwner.second, deviceOwner.first); 9384 } 9385 // This could happen if another thread has changed the device owner since we called 9386 // getUserRestrictionSource 9387 return null; 9388 } 9389 return null; 9390 } 9391 } 9392 9393 private Intent createShowAdminSupportIntent(ComponentName admin, int userId) { 9394 // This method is called with AMS lock held, so don't take DPMS lock 9395 final Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS); 9396 intent.putExtra(Intent.EXTRA_USER_ID, userId); 9397 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, admin); 9398 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 9399 return intent; 9400 } 9401 9402 @Override 9403 public Intent createAdminSupportIntent(String restriction) { 9404 Preconditions.checkNotNull(restriction); 9405 final int uid = mInjector.binderGetCallingUid(); 9406 final int userId = UserHandle.getUserId(uid); 9407 Intent intent = null; 9408 if (DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction) || 9409 DevicePolicyManager.POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction)) { 9410 synchronized(this) { 9411 final DevicePolicyData policy = getUserData(userId); 9412 final int N = policy.mAdminList.size(); 9413 for (int i = 0; i < N; i++) { 9414 final ActiveAdmin admin = policy.mAdminList.get(i); 9415 if ((admin.disableCamera && 9416 DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) || 9417 (admin.disableScreenCapture && DevicePolicyManager 9418 .POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction))) { 9419 intent = createShowAdminSupportIntent(admin.info.getComponent(), userId); 9420 break; 9421 } 9422 } 9423 // For the camera, a device owner on a different user can disable it globally, 9424 // so we need an additional check. 9425 if (intent == null 9426 && DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) { 9427 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 9428 if (admin != null && admin.disableCamera) { 9429 intent = createShowAdminSupportIntent(admin.info.getComponent(), 9430 mOwners.getDeviceOwnerUserId()); 9431 } 9432 } 9433 } 9434 } else { 9435 // if valid, |restriction| can only be a user restriction 9436 intent = mLocalService.createUserRestrictionSupportIntent(userId, restriction); 9437 } 9438 if (intent != null) { 9439 intent.putExtra(DevicePolicyManager.EXTRA_RESTRICTION, restriction); 9440 } 9441 return intent; 9442 } 9443 9444 /** 9445 * Returns true if specified admin is allowed to limit passwords and has a 9446 * {@code minimumPasswordMetrics.quality} of at least {@code minPasswordQuality} 9447 */ 9448 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 9449 if (admin.minimumPasswordMetrics.quality < minPasswordQuality) { 9450 return false; 9451 } 9452 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 9453 } 9454 9455 @Override 9456 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 9457 if (policy != null && !policy.isValid()) { 9458 throw new IllegalArgumentException("Invalid system update policy."); 9459 } 9460 synchronized (this) { 9461 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9462 if (policy == null) { 9463 mOwners.clearSystemUpdatePolicy(); 9464 } else { 9465 mOwners.setSystemUpdatePolicy(policy); 9466 } 9467 mOwners.writeDeviceOwner(); 9468 } 9469 mContext.sendBroadcastAsUser( 9470 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 9471 UserHandle.SYSTEM); 9472 } 9473 9474 @Override 9475 public SystemUpdatePolicy getSystemUpdatePolicy() { 9476 synchronized (this) { 9477 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 9478 if (policy != null && !policy.isValid()) { 9479 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 9480 return null; 9481 } 9482 return policy; 9483 } 9484 } 9485 9486 /** 9487 * Checks if the caller of the method is the device owner app. 9488 * 9489 * @param callerUid UID of the caller. 9490 * @return true if the caller is the device owner app 9491 */ 9492 @VisibleForTesting 9493 boolean isCallerDeviceOwner(int callerUid) { 9494 synchronized (this) { 9495 if (!mOwners.hasDeviceOwner()) { 9496 return false; 9497 } 9498 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 9499 return false; 9500 } 9501 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 9502 .getPackageName(); 9503 try { 9504 String[] pkgs = mInjector.getIPackageManager().getPackagesForUid(callerUid); 9505 for (String pkg : pkgs) { 9506 if (deviceOwnerPackageName.equals(pkg)) { 9507 return true; 9508 } 9509 } 9510 } catch (RemoteException e) { 9511 return false; 9512 } 9513 } 9514 9515 return false; 9516 } 9517 9518 @Override 9519 public void notifyPendingSystemUpdate(@Nullable SystemUpdateInfo info) { 9520 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 9521 "Only the system update service can broadcast update information"); 9522 9523 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 9524 Slog.w(LOG_TAG, "Only the system update service in the system user " + 9525 "can broadcast update information."); 9526 return; 9527 } 9528 9529 if (!mOwners.saveSystemUpdateInfo(info)) { 9530 // Pending system update hasn't changed, don't send duplicate notification. 9531 return; 9532 } 9533 9534 final Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE) 9535 .putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 9536 info == null ? -1 : info.getReceivedTime()); 9537 9538 final long ident = mInjector.binderClearCallingIdentity(); 9539 try { 9540 synchronized (this) { 9541 // Broadcast to device owner first if there is one. 9542 if (mOwners.hasDeviceOwner()) { 9543 final UserHandle deviceOwnerUser = 9544 UserHandle.of(mOwners.getDeviceOwnerUserId()); 9545 intent.setComponent(mOwners.getDeviceOwnerComponent()); 9546 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 9547 } 9548 } 9549 // Get running users. 9550 final int runningUserIds[]; 9551 try { 9552 runningUserIds = mInjector.getIActivityManager().getRunningUserIds(); 9553 } catch (RemoteException e) { 9554 // Shouldn't happen. 9555 Log.e(LOG_TAG, "Could not retrieve the list of running users", e); 9556 return; 9557 } 9558 // Send broadcasts to corresponding profile owners if any. 9559 for (final int userId : runningUserIds) { 9560 synchronized (this) { 9561 final ComponentName profileOwnerPackage = 9562 mOwners.getProfileOwnerComponent(userId); 9563 if (profileOwnerPackage != null) { 9564 intent.setComponent(profileOwnerPackage); 9565 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 9566 } 9567 } 9568 } 9569 } finally { 9570 mInjector.binderRestoreCallingIdentity(ident); 9571 } 9572 } 9573 9574 @Override 9575 public SystemUpdateInfo getPendingSystemUpdate(ComponentName admin) { 9576 Preconditions.checkNotNull(admin, "ComponentName is null"); 9577 enforceProfileOrDeviceOwner(admin); 9578 9579 return mOwners.getSystemUpdateInfo(); 9580 } 9581 9582 @Override 9583 public void setPermissionPolicy(ComponentName admin, String callerPackage, int policy) 9584 throws RemoteException { 9585 int userId = UserHandle.getCallingUserId(); 9586 synchronized (this) { 9587 // Ensure the caller is a DO/PO or a permission grant state delegate. 9588 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9589 DELEGATION_PERMISSION_GRANT); 9590 DevicePolicyData userPolicy = getUserData(userId); 9591 if (userPolicy.mPermissionPolicy != policy) { 9592 userPolicy.mPermissionPolicy = policy; 9593 saveSettingsLocked(userId); 9594 } 9595 } 9596 } 9597 9598 @Override 9599 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 9600 int userId = UserHandle.getCallingUserId(); 9601 synchronized (this) { 9602 DevicePolicyData userPolicy = getUserData(userId); 9603 return userPolicy.mPermissionPolicy; 9604 } 9605 } 9606 9607 @Override 9608 public boolean setPermissionGrantState(ComponentName admin, String callerPackage, 9609 String packageName, String permission, int grantState) throws RemoteException { 9610 UserHandle user = mInjector.binderGetCallingUserHandle(); 9611 synchronized (this) { 9612 // Ensure the caller is a DO/PO or a permission grant state delegate. 9613 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9614 DELEGATION_PERMISSION_GRANT); 9615 long ident = mInjector.binderClearCallingIdentity(); 9616 try { 9617 if (getTargetSdk(packageName, user.getIdentifier()) 9618 < android.os.Build.VERSION_CODES.M) { 9619 return false; 9620 } 9621 if (!isRuntimePermission(permission)) { 9622 return false; 9623 } 9624 final PackageManager packageManager = mInjector.getPackageManager(); 9625 switch (grantState) { 9626 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 9627 mInjector.getPackageManagerInternal().grantRuntimePermission(packageName, 9628 permission, user.getIdentifier(), true /* override policy */); 9629 packageManager.updatePermissionFlags(permission, packageName, 9630 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 9631 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 9632 } break; 9633 9634 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 9635 mInjector.getPackageManagerInternal().revokeRuntimePermission(packageName, 9636 permission, user.getIdentifier(), true /* override policy */); 9637 packageManager.updatePermissionFlags(permission, packageName, 9638 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 9639 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 9640 } break; 9641 9642 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 9643 packageManager.updatePermissionFlags(permission, packageName, 9644 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 9645 } break; 9646 } 9647 return true; 9648 } catch (SecurityException se) { 9649 return false; 9650 } catch (NameNotFoundException e) { 9651 return false; 9652 } finally { 9653 mInjector.binderRestoreCallingIdentity(ident); 9654 } 9655 } 9656 } 9657 9658 @Override 9659 public int getPermissionGrantState(ComponentName admin, String callerPackage, 9660 String packageName, String permission) throws RemoteException { 9661 PackageManager packageManager = mInjector.getPackageManager(); 9662 9663 UserHandle user = mInjector.binderGetCallingUserHandle(); 9664 if (!isCallerWithSystemUid()) { 9665 // Ensure the caller is a DO/PO or a permission grant state delegate. 9666 enforceCanManageScope(admin, callerPackage, 9667 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, DELEGATION_PERMISSION_GRANT); 9668 } 9669 synchronized (this) { 9670 long ident = mInjector.binderClearCallingIdentity(); 9671 try { 9672 int granted = mIPackageManager.checkPermission(permission, 9673 packageName, user.getIdentifier()); 9674 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 9675 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 9676 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 9677 // Not controlled by policy 9678 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 9679 } else { 9680 // Policy controlled so return result based on permission grant state 9681 return granted == PackageManager.PERMISSION_GRANTED 9682 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 9683 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 9684 } 9685 } finally { 9686 mInjector.binderRestoreCallingIdentity(ident); 9687 } 9688 } 9689 } 9690 9691 boolean isPackageInstalledForUser(String packageName, int userHandle) { 9692 try { 9693 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 9694 userHandle); 9695 return (pi != null) && (pi.applicationInfo.flags != 0); 9696 } catch (RemoteException re) { 9697 throw new RuntimeException("Package manager has died", re); 9698 } 9699 } 9700 9701 public boolean isRuntimePermission(String permissionName) throws NameNotFoundException { 9702 final PackageManager packageManager = mInjector.getPackageManager(); 9703 PermissionInfo permissionInfo = packageManager.getPermissionInfo(permissionName, 0); 9704 return (permissionInfo.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE) 9705 == PermissionInfo.PROTECTION_DANGEROUS; 9706 } 9707 9708 @Override 9709 public boolean isProvisioningAllowed(String action, String packageName) { 9710 Preconditions.checkNotNull(packageName); 9711 9712 final int callingUid = mInjector.binderGetCallingUid(); 9713 final long ident = mInjector.binderClearCallingIdentity(); 9714 try { 9715 final int uidForPackage = mInjector.getPackageManager().getPackageUidAsUser( 9716 packageName, UserHandle.getUserId(callingUid)); 9717 Preconditions.checkArgument(callingUid == uidForPackage, 9718 "Caller uid doesn't match the one for the provided package."); 9719 } catch (NameNotFoundException e) { 9720 throw new IllegalArgumentException("Invalid package provided " + packageName, e); 9721 } finally { 9722 mInjector.binderRestoreCallingIdentity(ident); 9723 } 9724 9725 return checkProvisioningPreConditionSkipPermission(action, packageName) == CODE_OK; 9726 } 9727 9728 @Override 9729 public int checkProvisioningPreCondition(String action, String packageName) { 9730 Preconditions.checkNotNull(packageName); 9731 enforceCanManageProfileAndDeviceOwners(); 9732 return checkProvisioningPreConditionSkipPermission(action, packageName); 9733 } 9734 9735 private int checkProvisioningPreConditionSkipPermission(String action, String packageName) { 9736 if (!mHasFeature) { 9737 return CODE_DEVICE_ADMIN_NOT_SUPPORTED; 9738 } 9739 9740 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9741 if (action != null) { 9742 switch (action) { 9743 case DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE: 9744 return checkManagedProfileProvisioningPreCondition(packageName, callingUserId); 9745 case DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE: 9746 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 9747 case DevicePolicyManager.ACTION_PROVISION_MANAGED_USER: 9748 return checkManagedUserProvisioningPreCondition(callingUserId); 9749 case DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE: 9750 return checkManagedShareableDeviceProvisioningPreCondition(callingUserId); 9751 } 9752 } 9753 throw new IllegalArgumentException("Unknown provisioning action " + action); 9754 } 9755 9756 /** 9757 * The device owner can only be set before the setup phase of the primary user has completed, 9758 * except for adb command if no accounts or additional users are present on the device. 9759 */ 9760 private int checkDeviceOwnerProvisioningPreConditionLocked(@Nullable ComponentName owner, 9761 int deviceOwnerUserId, boolean isAdb, boolean hasIncompatibleAccountsOrNonAdb) { 9762 if (mOwners.hasDeviceOwner()) { 9763 return CODE_HAS_DEVICE_OWNER; 9764 } 9765 if (mOwners.hasProfileOwner(deviceOwnerUserId)) { 9766 return CODE_USER_HAS_PROFILE_OWNER; 9767 } 9768 if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) { 9769 return CODE_USER_NOT_RUNNING; 9770 } 9771 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 9772 return CODE_HAS_PAIRED; 9773 } 9774 if (isAdb) { 9775 // if shell command runs after user setup completed check device status. Otherwise, OK. 9776 if (mIsWatch || hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 9777 if (!mInjector.userManagerIsSplitSystemUser()) { 9778 if (mUserManager.getUserCount() > 1) { 9779 return CODE_NONSYSTEM_USER_EXISTS; 9780 } 9781 if (hasIncompatibleAccountsOrNonAdb) { 9782 return CODE_ACCOUNTS_NOT_EMPTY; 9783 } 9784 } else { 9785 // STOPSHIP Do proper check in split user mode 9786 } 9787 } 9788 return CODE_OK; 9789 } else { 9790 if (!mInjector.userManagerIsSplitSystemUser()) { 9791 // In non-split user mode, DO has to be user 0 9792 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) { 9793 return CODE_NOT_SYSTEM_USER; 9794 } 9795 // In non-split user mode, only provision DO before setup wizard completes 9796 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 9797 return CODE_USER_SETUP_COMPLETED; 9798 } 9799 } else { 9800 // STOPSHIP Do proper check in split user mode 9801 } 9802 return CODE_OK; 9803 } 9804 } 9805 9806 private int checkDeviceOwnerProvisioningPreCondition(int deviceOwnerUserId) { 9807 synchronized (this) { 9808 // hasIncompatibleAccountsOrNonAdb doesn't matter since the caller is not adb. 9809 return checkDeviceOwnerProvisioningPreConditionLocked(/* owner unknown */ null, 9810 deviceOwnerUserId, /* isAdb= */ false, 9811 /* hasIncompatibleAccountsOrNonAdb=*/ true); 9812 } 9813 } 9814 9815 private int checkManagedProfileProvisioningPreCondition(String packageName, int callingUserId) { 9816 if (!hasFeatureManagedUsers()) { 9817 return CODE_MANAGED_USERS_NOT_SUPPORTED; 9818 } 9819 if (callingUserId == UserHandle.USER_SYSTEM 9820 && mInjector.userManagerIsSplitSystemUser()) { 9821 // Managed-profiles cannot be setup on the system user. 9822 return CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 9823 } 9824 if (getProfileOwner(callingUserId) != null) { 9825 // Managed user cannot have a managed profile. 9826 return CODE_USER_HAS_PROFILE_OWNER; 9827 } 9828 9829 final long ident = mInjector.binderClearCallingIdentity(); 9830 try { 9831 final UserHandle callingUserHandle = UserHandle.of(callingUserId); 9832 final ComponentName ownerAdmin = getOwnerComponent(packageName, callingUserId); 9833 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_MANAGED_PROFILE, 9834 callingUserHandle)) { 9835 // An admin can initiate provisioning if it has set the restriction. 9836 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 9837 UserManager.DISALLOW_ADD_MANAGED_PROFILE, callingUserId)) { 9838 return CODE_ADD_MANAGED_PROFILE_DISALLOWED; 9839 } 9840 } 9841 boolean canRemoveProfile = true; 9842 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 9843 callingUserHandle)) { 9844 // We can remove a profile if the admin itself has set the restriction. 9845 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 9846 UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 9847 callingUserId)) { 9848 canRemoveProfile = false; 9849 } 9850 } 9851 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, canRemoveProfile)) { 9852 return CODE_CANNOT_ADD_MANAGED_PROFILE; 9853 } 9854 } finally { 9855 mInjector.binderRestoreCallingIdentity(ident); 9856 } 9857 return CODE_OK; 9858 } 9859 9860 private ComponentName getOwnerComponent(String packageName, int userId) { 9861 if (isDeviceOwnerPackage(packageName, userId)) { 9862 return mOwners.getDeviceOwnerComponent(); 9863 } 9864 if (isProfileOwnerPackage(packageName, userId)) { 9865 return mOwners.getProfileOwnerComponent(userId); 9866 } 9867 return null; 9868 } 9869 9870 /** 9871 * Return device owner or profile owner set on a given user. 9872 */ 9873 private @Nullable ComponentName getOwnerComponent(int userId) { 9874 synchronized (this) { 9875 if (mOwners.getDeviceOwnerUserId() == userId) { 9876 return mOwners.getDeviceOwnerComponent(); 9877 } 9878 if (mOwners.hasProfileOwner(userId)) { 9879 return mOwners.getProfileOwnerComponent(userId); 9880 } 9881 } 9882 return null; 9883 } 9884 9885 private int checkManagedUserProvisioningPreCondition(int callingUserId) { 9886 if (!hasFeatureManagedUsers()) { 9887 return CODE_MANAGED_USERS_NOT_SUPPORTED; 9888 } 9889 if (!mInjector.userManagerIsSplitSystemUser()) { 9890 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 9891 return CODE_NOT_SYSTEM_USER_SPLIT; 9892 } 9893 if (callingUserId == UserHandle.USER_SYSTEM) { 9894 // System user cannot be a managed user. 9895 return CODE_SYSTEM_USER; 9896 } 9897 if (hasUserSetupCompleted(callingUserId)) { 9898 return CODE_USER_SETUP_COMPLETED; 9899 } 9900 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 9901 return CODE_HAS_PAIRED; 9902 } 9903 return CODE_OK; 9904 } 9905 9906 private int checkManagedShareableDeviceProvisioningPreCondition(int callingUserId) { 9907 if (!mInjector.userManagerIsSplitSystemUser()) { 9908 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 9909 return CODE_NOT_SYSTEM_USER_SPLIT; 9910 } 9911 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 9912 } 9913 9914 private boolean hasFeatureManagedUsers() { 9915 try { 9916 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 9917 } catch (RemoteException e) { 9918 return false; 9919 } 9920 } 9921 9922 @Override 9923 public String getWifiMacAddress(ComponentName admin) { 9924 // Make sure caller has DO. 9925 synchronized (this) { 9926 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9927 } 9928 9929 final long ident = mInjector.binderClearCallingIdentity(); 9930 try { 9931 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 9932 if (wifiInfo == null) { 9933 return null; 9934 } 9935 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 9936 } finally { 9937 mInjector.binderRestoreCallingIdentity(ident); 9938 } 9939 } 9940 9941 /** 9942 * Returns the target sdk version number that the given packageName was built for 9943 * in the given user. 9944 */ 9945 private int getTargetSdk(String packageName, int userId) { 9946 final ApplicationInfo ai; 9947 try { 9948 ai = mIPackageManager.getApplicationInfo(packageName, 0, userId); 9949 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 9950 return targetSdkVersion; 9951 } catch (RemoteException e) { 9952 // Shouldn't happen 9953 return 0; 9954 } 9955 } 9956 9957 @Override 9958 public boolean isManagedProfile(ComponentName admin) { 9959 enforceProfileOrDeviceOwner(admin); 9960 return isManagedProfile(mInjector.userHandleGetCallingUserId()); 9961 } 9962 9963 @Override 9964 public boolean isSystemOnlyUser(ComponentName admin) { 9965 synchronized (this) { 9966 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9967 } 9968 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9969 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 9970 } 9971 9972 @Override 9973 public void reboot(ComponentName admin) { 9974 Preconditions.checkNotNull(admin); 9975 // Make sure caller has DO. 9976 synchronized (this) { 9977 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9978 } 9979 long ident = mInjector.binderClearCallingIdentity(); 9980 try { 9981 // Make sure there are no ongoing calls on the device. 9982 if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { 9983 throw new IllegalStateException("Cannot be called with ongoing call on the device"); 9984 } 9985 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 9986 } finally { 9987 mInjector.binderRestoreCallingIdentity(ident); 9988 } 9989 } 9990 9991 @Override 9992 public void setShortSupportMessage(@NonNull ComponentName who, CharSequence message) { 9993 if (!mHasFeature) { 9994 return; 9995 } 9996 Preconditions.checkNotNull(who, "ComponentName is null"); 9997 final int userHandle = mInjector.userHandleGetCallingUserId(); 9998 synchronized (this) { 9999 ActiveAdmin admin = getActiveAdminForUidLocked(who, 10000 mInjector.binderGetCallingUid()); 10001 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 10002 admin.shortSupportMessage = message; 10003 saveSettingsLocked(userHandle); 10004 } 10005 } 10006 } 10007 10008 @Override 10009 public CharSequence getShortSupportMessage(@NonNull ComponentName who) { 10010 if (!mHasFeature) { 10011 return null; 10012 } 10013 Preconditions.checkNotNull(who, "ComponentName is null"); 10014 synchronized (this) { 10015 ActiveAdmin admin = getActiveAdminForUidLocked(who, 10016 mInjector.binderGetCallingUid()); 10017 return admin.shortSupportMessage; 10018 } 10019 } 10020 10021 @Override 10022 public void setLongSupportMessage(@NonNull ComponentName who, CharSequence message) { 10023 if (!mHasFeature) { 10024 return; 10025 } 10026 Preconditions.checkNotNull(who, "ComponentName is null"); 10027 final int userHandle = mInjector.userHandleGetCallingUserId(); 10028 synchronized (this) { 10029 ActiveAdmin admin = getActiveAdminForUidLocked(who, 10030 mInjector.binderGetCallingUid()); 10031 if (!TextUtils.equals(admin.longSupportMessage, message)) { 10032 admin.longSupportMessage = message; 10033 saveSettingsLocked(userHandle); 10034 } 10035 } 10036 } 10037 10038 @Override 10039 public CharSequence getLongSupportMessage(@NonNull ComponentName who) { 10040 if (!mHasFeature) { 10041 return null; 10042 } 10043 Preconditions.checkNotNull(who, "ComponentName is null"); 10044 synchronized (this) { 10045 ActiveAdmin admin = getActiveAdminForUidLocked(who, 10046 mInjector.binderGetCallingUid()); 10047 return admin.longSupportMessage; 10048 } 10049 } 10050 10051 @Override 10052 public CharSequence getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 10053 if (!mHasFeature) { 10054 return null; 10055 } 10056 Preconditions.checkNotNull(who, "ComponentName is null"); 10057 if (!isCallerWithSystemUid()) { 10058 throw new SecurityException("Only the system can query support message for user"); 10059 } 10060 synchronized (this) { 10061 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 10062 if (admin != null) { 10063 return admin.shortSupportMessage; 10064 } 10065 } 10066 return null; 10067 } 10068 10069 @Override 10070 public CharSequence getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 10071 if (!mHasFeature) { 10072 return null; 10073 } 10074 Preconditions.checkNotNull(who, "ComponentName is null"); 10075 if (!isCallerWithSystemUid()) { 10076 throw new SecurityException("Only the system can query support message for user"); 10077 } 10078 synchronized (this) { 10079 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 10080 if (admin != null) { 10081 return admin.longSupportMessage; 10082 } 10083 } 10084 return null; 10085 } 10086 10087 @Override 10088 public void setOrganizationColor(@NonNull ComponentName who, int color) { 10089 if (!mHasFeature) { 10090 return; 10091 } 10092 Preconditions.checkNotNull(who, "ComponentName is null"); 10093 final int userHandle = mInjector.userHandleGetCallingUserId(); 10094 enforceManagedProfile(userHandle, "set organization color"); 10095 synchronized (this) { 10096 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 10097 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10098 admin.organizationColor = color; 10099 saveSettingsLocked(userHandle); 10100 } 10101 } 10102 10103 @Override 10104 public void setOrganizationColorForUser(int color, int userId) { 10105 if (!mHasFeature) { 10106 return; 10107 } 10108 enforceFullCrossUsersPermission(userId); 10109 enforceManageUsers(); 10110 enforceManagedProfile(userId, "set organization color"); 10111 synchronized (this) { 10112 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 10113 admin.organizationColor = color; 10114 saveSettingsLocked(userId); 10115 } 10116 } 10117 10118 @Override 10119 public int getOrganizationColor(@NonNull ComponentName who) { 10120 if (!mHasFeature) { 10121 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 10122 } 10123 Preconditions.checkNotNull(who, "ComponentName is null"); 10124 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 10125 synchronized (this) { 10126 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 10127 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10128 return admin.organizationColor; 10129 } 10130 } 10131 10132 @Override 10133 public int getOrganizationColorForUser(int userHandle) { 10134 if (!mHasFeature) { 10135 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 10136 } 10137 enforceFullCrossUsersPermission(userHandle); 10138 enforceManagedProfile(userHandle, "get organization color"); 10139 synchronized (this) { 10140 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 10141 return (profileOwner != null) 10142 ? profileOwner.organizationColor 10143 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 10144 } 10145 } 10146 10147 @Override 10148 public void setOrganizationName(@NonNull ComponentName who, CharSequence text) { 10149 if (!mHasFeature) { 10150 return; 10151 } 10152 Preconditions.checkNotNull(who, "ComponentName is null"); 10153 final int userHandle = mInjector.userHandleGetCallingUserId(); 10154 10155 synchronized (this) { 10156 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 10157 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10158 if (!TextUtils.equals(admin.organizationName, text)) { 10159 admin.organizationName = (text == null || text.length() == 0) 10160 ? null : text.toString(); 10161 saveSettingsLocked(userHandle); 10162 } 10163 } 10164 } 10165 10166 @Override 10167 public CharSequence getOrganizationName(@NonNull ComponentName who) { 10168 if (!mHasFeature) { 10169 return null; 10170 } 10171 Preconditions.checkNotNull(who, "ComponentName is null"); 10172 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 10173 synchronized(this) { 10174 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 10175 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10176 return admin.organizationName; 10177 } 10178 } 10179 10180 @Override 10181 public CharSequence getDeviceOwnerOrganizationName() { 10182 if (!mHasFeature) { 10183 return null; 10184 } 10185 enforceDeviceOwnerOrManageUsers(); 10186 synchronized(this) { 10187 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 10188 return deviceOwnerAdmin == null ? null : deviceOwnerAdmin.organizationName; 10189 } 10190 } 10191 10192 @Override 10193 public CharSequence getOrganizationNameForUser(int userHandle) { 10194 if (!mHasFeature) { 10195 return null; 10196 } 10197 enforceFullCrossUsersPermission(userHandle); 10198 enforceManagedProfile(userHandle, "get organization name"); 10199 synchronized (this) { 10200 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 10201 return (profileOwner != null) 10202 ? profileOwner.organizationName 10203 : null; 10204 } 10205 } 10206 10207 @Override 10208 public void setAffiliationIds(ComponentName admin, List<String> ids) { 10209 if (!mHasFeature) { 10210 return; 10211 } 10212 if (ids == null) { 10213 throw new IllegalArgumentException("ids must not be null"); 10214 } 10215 for (String id : ids) { 10216 if (TextUtils.isEmpty(id)) { 10217 throw new IllegalArgumentException("ids must not contain empty string"); 10218 } 10219 } 10220 10221 final Set<String> affiliationIds = new ArraySet<>(ids); 10222 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10223 synchronized (this) { 10224 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10225 getUserData(callingUserId).mAffiliationIds = affiliationIds; 10226 saveSettingsLocked(callingUserId); 10227 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 10228 // Affiliation ids specified by the device owner are additionally stored in 10229 // UserHandle.USER_SYSTEM's DevicePolicyData. 10230 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 10231 saveSettingsLocked(UserHandle.USER_SYSTEM); 10232 } 10233 10234 // Affiliation status for any user, not just the calling user, might have changed. 10235 // The device owner user will still be affiliated after changing its affiliation ids, 10236 // but as a result of that other users might become affiliated or un-affiliated. 10237 maybePauseDeviceWideLoggingLocked(); 10238 maybeResumeDeviceWideLoggingLocked(); 10239 maybeClearLockTaskPackagesLocked(); 10240 } 10241 } 10242 10243 @Override 10244 public List<String> getAffiliationIds(ComponentName admin) { 10245 if (!mHasFeature) { 10246 return Collections.emptyList(); 10247 } 10248 10249 Preconditions.checkNotNull(admin); 10250 synchronized (this) { 10251 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10252 return new ArrayList<String>( 10253 getUserData(mInjector.userHandleGetCallingUserId()).mAffiliationIds); 10254 } 10255 } 10256 10257 @Override 10258 public boolean isAffiliatedUser() { 10259 if (!mHasFeature) { 10260 return false; 10261 } 10262 10263 synchronized (this) { 10264 return isUserAffiliatedWithDeviceLocked(mInjector.userHandleGetCallingUserId()); 10265 } 10266 } 10267 10268 private boolean isUserAffiliatedWithDeviceLocked(int userId) { 10269 if (!mOwners.hasDeviceOwner()) { 10270 return false; 10271 } 10272 if (userId == mOwners.getDeviceOwnerUserId()) { 10273 // The user that the DO is installed on is always affiliated with the device. 10274 return true; 10275 } 10276 if (userId == UserHandle.USER_SYSTEM) { 10277 // The system user is always affiliated in a DO device, even if the DO is set on a 10278 // different user. This could be the case if the DO is set in the primary user 10279 // of a split user device. 10280 return true; 10281 } 10282 final ComponentName profileOwner = getProfileOwner(userId); 10283 if (profileOwner == null) { 10284 return false; 10285 } 10286 final Set<String> userAffiliationIds = getUserData(userId).mAffiliationIds; 10287 final Set<String> deviceAffiliationIds = 10288 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 10289 for (String id : userAffiliationIds) { 10290 if (deviceAffiliationIds.contains(id)) { 10291 return true; 10292 } 10293 } 10294 return false; 10295 } 10296 10297 private boolean areAllUsersAffiliatedWithDeviceLocked() { 10298 final long ident = mInjector.binderClearCallingIdentity(); 10299 try { 10300 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 10301 for (int i = 0; i < userInfos.size(); i++) { 10302 int userId = userInfos.get(i).id; 10303 if (!isUserAffiliatedWithDeviceLocked(userId)) { 10304 Slog.d(LOG_TAG, "User id " + userId + " not affiliated."); 10305 return false; 10306 } 10307 } 10308 } finally { 10309 mInjector.binderRestoreCallingIdentity(ident); 10310 } 10311 10312 return true; 10313 } 10314 10315 @Override 10316 public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) { 10317 if (!mHasFeature) { 10318 return; 10319 } 10320 Preconditions.checkNotNull(admin); 10321 10322 synchronized (this) { 10323 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10324 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 10325 return; 10326 } 10327 mInjector.securityLogSetLoggingEnabledProperty(enabled); 10328 if (enabled) { 10329 mSecurityLogMonitor.start(); 10330 maybePauseDeviceWideLoggingLocked(); 10331 } else { 10332 mSecurityLogMonitor.stop(); 10333 } 10334 } 10335 } 10336 10337 @Override 10338 public boolean isSecurityLoggingEnabled(ComponentName admin) { 10339 if (!mHasFeature) { 10340 return false; 10341 } 10342 10343 synchronized (this) { 10344 if (!isCallerWithSystemUid()) { 10345 Preconditions.checkNotNull(admin); 10346 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10347 } 10348 return mInjector.securityLogGetLoggingEnabledProperty(); 10349 } 10350 } 10351 10352 private synchronized void recordSecurityLogRetrievalTime() { 10353 final long currentTime = System.currentTimeMillis(); 10354 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 10355 if (currentTime > policyData.mLastSecurityLogRetrievalTime) { 10356 policyData.mLastSecurityLogRetrievalTime = currentTime; 10357 saveSettingsLocked(UserHandle.USER_SYSTEM); 10358 } 10359 } 10360 10361 @Override 10362 public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) { 10363 if (!mHasFeature) { 10364 return null; 10365 } 10366 10367 Preconditions.checkNotNull(admin); 10368 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10369 10370 if (!mContext.getResources().getBoolean(R.bool.config_supportPreRebootSecurityLogs) 10371 || !mInjector.securityLogGetLoggingEnabledProperty()) { 10372 return null; 10373 } 10374 10375 recordSecurityLogRetrievalTime(); 10376 10377 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 10378 try { 10379 SecurityLog.readPreviousEvents(output); 10380 return new ParceledListSlice<SecurityEvent>(output); 10381 } catch (IOException e) { 10382 Slog.w(LOG_TAG, "Fail to read previous events" , e); 10383 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 10384 } 10385 } 10386 10387 @Override 10388 public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) { 10389 if (!mHasFeature) { 10390 return null; 10391 } 10392 10393 Preconditions.checkNotNull(admin); 10394 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10395 10396 if (!mInjector.securityLogGetLoggingEnabledProperty()) { 10397 return null; 10398 } 10399 10400 recordSecurityLogRetrievalTime(); 10401 10402 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 10403 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 10404 } 10405 10406 private void enforceCanManageDeviceAdmin() { 10407 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 10408 null); 10409 } 10410 10411 private void enforceCanManageProfileAndDeviceOwners() { 10412 mContext.enforceCallingOrSelfPermission( 10413 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 10414 } 10415 10416 private void enforceCallerSystemUserHandle() { 10417 final int callingUid = mInjector.binderGetCallingUid(); 10418 final int userId = UserHandle.getUserId(callingUid); 10419 if (userId != UserHandle.USER_SYSTEM) { 10420 throw new SecurityException("Caller has to be in user 0"); 10421 } 10422 } 10423 10424 @Override 10425 public boolean isUninstallInQueue(final String packageName) { 10426 enforceCanManageDeviceAdmin(); 10427 final int userId = mInjector.userHandleGetCallingUserId(); 10428 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10429 synchronized (this) { 10430 return mPackagesToRemove.contains(packageUserPair); 10431 } 10432 } 10433 10434 @Override 10435 public void uninstallPackageWithActiveAdmins(final String packageName) { 10436 enforceCanManageDeviceAdmin(); 10437 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 10438 10439 final int userId = mInjector.userHandleGetCallingUserId(); 10440 10441 enforceUserUnlocked(userId); 10442 10443 final ComponentName profileOwner = getProfileOwner(userId); 10444 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 10445 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 10446 } 10447 10448 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 10449 if (getDeviceOwnerUserId() == userId && deviceOwner != null 10450 && packageName.equals(deviceOwner.getPackageName())) { 10451 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 10452 } 10453 10454 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10455 synchronized (this) { 10456 mPackagesToRemove.add(packageUserPair); 10457 } 10458 10459 // All active admins on the user. 10460 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 10461 10462 // Active admins in the target package. 10463 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 10464 if (allActiveAdmins != null) { 10465 for (ComponentName activeAdmin : allActiveAdmins) { 10466 if (packageName.equals(activeAdmin.getPackageName())) { 10467 packageActiveAdmins.add(activeAdmin); 10468 removeActiveAdmin(activeAdmin, userId); 10469 } 10470 } 10471 } 10472 if (packageActiveAdmins.size() == 0) { 10473 startUninstallIntent(packageName, userId); 10474 } else { 10475 mHandler.postDelayed(new Runnable() { 10476 @Override 10477 public void run() { 10478 for (ComponentName activeAdmin : packageActiveAdmins) { 10479 removeAdminArtifacts(activeAdmin, userId); 10480 } 10481 startUninstallIntent(packageName, userId); 10482 } 10483 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 10484 } 10485 } 10486 10487 @Override 10488 public boolean isDeviceProvisioned() { 10489 synchronized (this) { 10490 return getUserDataUnchecked(UserHandle.USER_SYSTEM).mUserSetupComplete; 10491 } 10492 } 10493 10494 private boolean isCurrentUserDemo() { 10495 if (UserManager.isDeviceInDemoMode(mContext)) { 10496 final int userId = mInjector.userHandleGetCallingUserId(); 10497 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10498 try { 10499 return mUserManager.getUserInfo(userId).isDemo(); 10500 } finally { 10501 mInjector.binderRestoreCallingIdentity(callingIdentity); 10502 } 10503 } 10504 return false; 10505 } 10506 10507 private void removePackageIfRequired(final String packageName, final int userId) { 10508 if (!packageHasActiveAdmins(packageName, userId)) { 10509 // Will not do anything if uninstall was not requested or was already started. 10510 startUninstallIntent(packageName, userId); 10511 } 10512 } 10513 10514 private void startUninstallIntent(final String packageName, final int userId) { 10515 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10516 synchronized (this) { 10517 if (!mPackagesToRemove.contains(packageUserPair)) { 10518 // Do nothing if uninstall was not requested or was already started. 10519 return; 10520 } 10521 mPackagesToRemove.remove(packageUserPair); 10522 } 10523 try { 10524 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 10525 // Package does not exist. Nothing to do. 10526 return; 10527 } 10528 } catch (RemoteException re) { 10529 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 10530 } 10531 10532 try { // force stop the package before uninstalling 10533 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 10534 } catch (RemoteException re) { 10535 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 10536 } 10537 final Uri packageURI = Uri.parse("package:" + packageName); 10538 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 10539 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 10540 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 10541 } 10542 10543 /** 10544 * Removes the admin from the policy. Ideally called after the admin's 10545 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 10546 * 10547 * @param adminReceiver The admin to remove 10548 * @param userHandle The user for which this admin has to be removed. 10549 */ 10550 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 10551 synchronized (this) { 10552 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 10553 if (admin == null) { 10554 return; 10555 } 10556 final DevicePolicyData policy = getUserData(userHandle); 10557 final boolean doProxyCleanup = admin.info.usesPolicy( 10558 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 10559 policy.mAdminList.remove(admin); 10560 policy.mAdminMap.remove(adminReceiver); 10561 validatePasswordOwnerLocked(policy); 10562 if (doProxyCleanup) { 10563 resetGlobalProxyLocked(policy); 10564 } 10565 saveSettingsLocked(userHandle); 10566 updateMaximumTimeToLockLocked(userHandle); 10567 policy.mRemovingAdmins.remove(adminReceiver); 10568 10569 Slog.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle); 10570 } 10571 // The removed admin might have disabled camera, so update user 10572 // restrictions. 10573 pushUserRestrictions(userHandle); 10574 } 10575 10576 @Override 10577 public void setDeviceProvisioningConfigApplied() { 10578 enforceManageUsers(); 10579 synchronized (this) { 10580 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 10581 policy.mDeviceProvisioningConfigApplied = true; 10582 saveSettingsLocked(UserHandle.USER_SYSTEM); 10583 } 10584 } 10585 10586 @Override 10587 public boolean isDeviceProvisioningConfigApplied() { 10588 enforceManageUsers(); 10589 synchronized (this) { 10590 final DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 10591 return policy.mDeviceProvisioningConfigApplied; 10592 } 10593 } 10594 10595 /** 10596 * Force update internal persistent state from Settings.Secure.USER_SETUP_COMPLETE. 10597 * 10598 * It's added for testing only. Please use this API carefully if it's used by other system app 10599 * and bare in mind Settings.Secure.USER_SETUP_COMPLETE can be modified by user and other system 10600 * apps. 10601 */ 10602 @Override 10603 public void forceUpdateUserSetupComplete() { 10604 enforceCanManageProfileAndDeviceOwners(); 10605 enforceCallerSystemUserHandle(); 10606 // no effect if it's called from user build 10607 if (!mInjector.isBuildDebuggable()) { 10608 return; 10609 } 10610 final int userId = UserHandle.USER_SYSTEM; 10611 boolean isUserCompleted = mInjector.settingsSecureGetIntForUser( 10612 Settings.Secure.USER_SETUP_COMPLETE, 0, userId) != 0; 10613 DevicePolicyData policy = getUserData(userId); 10614 policy.mUserSetupComplete = isUserCompleted; 10615 synchronized (this) { 10616 saveSettingsLocked(userId); 10617 } 10618 } 10619 10620 // TODO(b/22388012): When backup is available for secondary users and profiles, consider 10621 // whether there are any privacy/security implications of enabling the backup service here 10622 // if there are other users or profiles unmanaged or managed by a different entity (i.e. not 10623 // affiliated). 10624 @Override 10625 public void setBackupServiceEnabled(ComponentName admin, boolean enabled) { 10626 if (!mHasFeature) { 10627 return; 10628 } 10629 Preconditions.checkNotNull(admin); 10630 synchronized (this) { 10631 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10632 } 10633 10634 final long ident = mInjector.binderClearCallingIdentity(); 10635 try { 10636 IBackupManager ibm = mInjector.getIBackupManager(); 10637 if (ibm != null) { 10638 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, enabled); 10639 } 10640 } catch (RemoteException e) { 10641 throw new IllegalStateException( 10642 "Failed " + (enabled ? "" : "de") + "activating backup service.", e); 10643 } finally { 10644 mInjector.binderRestoreCallingIdentity(ident); 10645 } 10646 } 10647 10648 @Override 10649 public boolean isBackupServiceEnabled(ComponentName admin) { 10650 Preconditions.checkNotNull(admin); 10651 if (!mHasFeature) { 10652 return true; 10653 } 10654 synchronized (this) { 10655 try { 10656 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10657 IBackupManager ibm = mInjector.getIBackupManager(); 10658 return ibm != null && ibm.isBackupServiceActive(UserHandle.USER_SYSTEM); 10659 } catch (RemoteException e) { 10660 throw new IllegalStateException("Failed requesting backup service state.", e); 10661 } 10662 } 10663 } 10664 10665 @Override 10666 public boolean bindDeviceAdminServiceAsUser( 10667 @NonNull ComponentName admin, @NonNull IApplicationThread caller, 10668 @Nullable IBinder activtiyToken, @NonNull Intent serviceIntent, 10669 @NonNull IServiceConnection connection, int flags, @UserIdInt int targetUserId) { 10670 if (!mHasFeature) { 10671 return false; 10672 } 10673 Preconditions.checkNotNull(admin); 10674 Preconditions.checkNotNull(caller); 10675 Preconditions.checkNotNull(serviceIntent); 10676 Preconditions.checkArgument( 10677 serviceIntent.getComponent() != null || serviceIntent.getPackage() != null, 10678 "Service intent must be explicit (with a package name or component): " 10679 + serviceIntent); 10680 Preconditions.checkNotNull(connection); 10681 Preconditions.checkArgument(mInjector.userHandleGetCallingUserId() != targetUserId, 10682 "target user id must be different from the calling user id"); 10683 10684 if (!getBindDeviceAdminTargetUsers(admin).contains(UserHandle.of(targetUserId))) { 10685 throw new SecurityException("Not allowed to bind to target user id"); 10686 } 10687 10688 final String targetPackage; 10689 synchronized (this) { 10690 targetPackage = getOwnerPackageNameForUserLocked(targetUserId); 10691 } 10692 10693 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10694 try { 10695 // Validate and sanitize the incoming service intent. 10696 final Intent sanitizedIntent = 10697 createCrossUserServiceIntent(serviceIntent, targetPackage, targetUserId); 10698 if (sanitizedIntent == null) { 10699 // Fail, cannot lookup the target service. 10700 return false; 10701 } 10702 // Ask ActivityManager to bind it. Notice that we are binding the service with the 10703 // caller app instead of DevicePolicyManagerService. 10704 return mInjector.getIActivityManager().bindService( 10705 caller, activtiyToken, serviceIntent, 10706 serviceIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 10707 connection, flags, mContext.getOpPackageName(), 10708 targetUserId) != 0; 10709 } catch (RemoteException ex) { 10710 // Same process, should not happen. 10711 } finally { 10712 mInjector.binderRestoreCallingIdentity(callingIdentity); 10713 } 10714 10715 // Failed to bind. 10716 return false; 10717 } 10718 10719 @Override 10720 public @NonNull List<UserHandle> getBindDeviceAdminTargetUsers(@NonNull ComponentName admin) { 10721 if (!mHasFeature) { 10722 return Collections.emptyList(); 10723 } 10724 Preconditions.checkNotNull(admin); 10725 10726 synchronized (this) { 10727 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10728 10729 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10730 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10731 try { 10732 ArrayList<UserHandle> targetUsers = new ArrayList<>(); 10733 if (!isDeviceOwner(admin, callingUserId)) { 10734 // Profile owners can only bind to the device owner. 10735 if (canUserBindToDeviceOwnerLocked(callingUserId)) { 10736 targetUsers.add(UserHandle.of(mOwners.getDeviceOwnerUserId())); 10737 } 10738 } else { 10739 // Caller is the device owner: Look for profile owners that it can bind to. 10740 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 10741 for (int i = 0; i < userInfos.size(); i++) { 10742 final int userId = userInfos.get(i).id; 10743 if (userId != callingUserId && canUserBindToDeviceOwnerLocked(userId)) { 10744 targetUsers.add(UserHandle.of(userId)); 10745 } 10746 } 10747 } 10748 10749 return targetUsers; 10750 } finally { 10751 mInjector.binderRestoreCallingIdentity(callingIdentity); 10752 } 10753 } 10754 } 10755 10756 private boolean canUserBindToDeviceOwnerLocked(int userId) { 10757 // There has to be a device owner, under another user id. 10758 if (!mOwners.hasDeviceOwner() || userId == mOwners.getDeviceOwnerUserId()) { 10759 return false; 10760 } 10761 10762 // The user must have a profile owner that belongs to the same package as the device owner. 10763 if (!mOwners.hasProfileOwner(userId) || !TextUtils.equals( 10764 mOwners.getDeviceOwnerPackageName(), mOwners.getProfileOwnerPackage(userId))) { 10765 return false; 10766 } 10767 10768 // The user must be affiliated. 10769 return isUserAffiliatedWithDeviceLocked(userId); 10770 } 10771 10772 /** 10773 * Return true if a given user has any accounts that'll prevent installing a device or profile 10774 * owner {@code owner}. 10775 * - If the user has no accounts, then return false. 10776 * - Otherwise, if the owner is unknown (== null), or is not test-only, then return true. 10777 * - Otherwise, if there's any account that does not have ..._ALLOWED, or does have 10778 * ..._DISALLOWED, return true. 10779 * - Otherwise return false. 10780 * 10781 * If the caller is *not* ADB, it also returns true. The returned value shouldn't be used 10782 * when the caller is not ADB. 10783 * 10784 * DO NOT CALL IT WITH THE DPMS LOCK HELD. 10785 */ 10786 private boolean hasIncompatibleAccountsOrNonAdbNoLock( 10787 int userId, @Nullable ComponentName owner) { 10788 if (!isAdb()) { 10789 return true; 10790 } 10791 wtfIfInLock(); 10792 10793 final long token = mInjector.binderClearCallingIdentity(); 10794 try { 10795 final AccountManager am = AccountManager.get(mContext); 10796 final Account accounts[] = am.getAccountsAsUser(userId); 10797 if (accounts.length == 0) { 10798 return false; 10799 } 10800 synchronized (this) { 10801 if (owner == null || !isAdminTestOnlyLocked(owner, userId)) { 10802 Log.w(LOG_TAG, 10803 "Non test-only owner can't be installed with existing accounts."); 10804 return true; 10805 } 10806 } 10807 10808 final String[] feature_allow = 10809 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_ALLOWED }; 10810 final String[] feature_disallow = 10811 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_DISALLOWED }; 10812 10813 boolean compatible = true; 10814 for (Account account : accounts) { 10815 if (hasAccountFeatures(am, account, feature_disallow)) { 10816 Log.e(LOG_TAG, account + " has " + feature_disallow[0]); 10817 compatible = false; 10818 break; 10819 } 10820 if (!hasAccountFeatures(am, account, feature_allow)) { 10821 Log.e(LOG_TAG, account + " doesn't have " + feature_allow[0]); 10822 compatible = false; 10823 break; 10824 } 10825 } 10826 if (compatible) { 10827 Log.w(LOG_TAG, "All accounts are compatible"); 10828 } else { 10829 Log.e(LOG_TAG, "Found incompatible accounts"); 10830 } 10831 return !compatible; 10832 } finally { 10833 mInjector.binderRestoreCallingIdentity(token); 10834 } 10835 } 10836 10837 private boolean hasAccountFeatures(AccountManager am, Account account, String[] features) { 10838 try { 10839 return am.hasFeatures(account, features, null, null).getResult(); 10840 } catch (Exception e) { 10841 Log.w(LOG_TAG, "Failed to get account feature", e); 10842 return false; 10843 } 10844 } 10845 10846 private boolean isAdb() { 10847 final int callingUid = mInjector.binderGetCallingUid(); 10848 return callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID; 10849 } 10850 10851 @Override 10852 public synchronized void setNetworkLoggingEnabled(ComponentName admin, boolean enabled) { 10853 if (!mHasFeature) { 10854 return; 10855 } 10856 Preconditions.checkNotNull(admin); 10857 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10858 10859 if (enabled == isNetworkLoggingEnabledInternalLocked()) { 10860 // already in the requested state 10861 return; 10862 } 10863 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10864 deviceOwner.isNetworkLoggingEnabled = enabled; 10865 if (!enabled) { 10866 deviceOwner.numNetworkLoggingNotifications = 0; 10867 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 10868 } 10869 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 10870 10871 setNetworkLoggingActiveInternal(enabled); 10872 } 10873 10874 private synchronized void setNetworkLoggingActiveInternal(boolean active) { 10875 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10876 try { 10877 if (active) { 10878 mNetworkLogger = new NetworkLogger(this, mInjector.getPackageManagerInternal()); 10879 if (!mNetworkLogger.startNetworkLogging()) { 10880 mNetworkLogger = null; 10881 Slog.wtf(LOG_TAG, "Network logging could not be started due to the logging" 10882 + " service not being available yet."); 10883 } 10884 maybePauseDeviceWideLoggingLocked(); 10885 sendNetworkLoggingNotificationLocked(); 10886 } else { 10887 if (mNetworkLogger != null && !mNetworkLogger.stopNetworkLogging()) { 10888 Slog.wtf(LOG_TAG, "Network logging could not be stopped due to the logging" 10889 + " service not being available yet."); 10890 } 10891 mNetworkLogger = null; 10892 mInjector.getNotificationManager().cancel(SystemMessage.NOTE_NETWORK_LOGGING); 10893 } 10894 } finally { 10895 mInjector.binderRestoreCallingIdentity(callingIdentity); 10896 } 10897 } 10898 10899 /** Pauses security and network logging if there are unaffiliated users on the device */ 10900 private void maybePauseDeviceWideLoggingLocked() { 10901 if (!areAllUsersAffiliatedWithDeviceLocked()) { 10902 Slog.i(LOG_TAG, "There are unaffiliated users, security and network logging will be " 10903 + "paused if enabled."); 10904 mSecurityLogMonitor.pause(); 10905 if (mNetworkLogger != null) { 10906 mNetworkLogger.pause(); 10907 } 10908 } 10909 } 10910 10911 /** Resumes security and network logging (if they are enabled) if all users are affiliated */ 10912 private void maybeResumeDeviceWideLoggingLocked() { 10913 if (areAllUsersAffiliatedWithDeviceLocked()) { 10914 final long ident = mInjector.binderClearCallingIdentity(); 10915 try { 10916 mSecurityLogMonitor.resume(); 10917 if (mNetworkLogger != null) { 10918 mNetworkLogger.resume(); 10919 } 10920 } finally { 10921 mInjector.binderRestoreCallingIdentity(ident); 10922 } 10923 } 10924 } 10925 10926 /** Deletes any security and network logs that might have been collected so far */ 10927 private void discardDeviceWideLogsLocked() { 10928 mSecurityLogMonitor.discardLogs(); 10929 if (mNetworkLogger != null) { 10930 mNetworkLogger.discardLogs(); 10931 } 10932 // TODO: We should discard pre-boot security logs here too, as otherwise those 10933 // logs (which might contain data from the user just removed) will be 10934 // available after next boot. 10935 } 10936 10937 @Override 10938 public boolean isNetworkLoggingEnabled(ComponentName admin) { 10939 if (!mHasFeature) { 10940 return false; 10941 } 10942 synchronized (this) { 10943 enforceDeviceOwnerOrManageUsers(); 10944 return isNetworkLoggingEnabledInternalLocked(); 10945 } 10946 } 10947 10948 private boolean isNetworkLoggingEnabledInternalLocked() { 10949 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10950 return (deviceOwner != null) && deviceOwner.isNetworkLoggingEnabled; 10951 } 10952 10953 /* 10954 * A maximum of 1200 events are returned, and the total marshalled size is in the order of 10955 * 100kB, so returning a List instead of ParceledListSlice is acceptable. 10956 * Ideally this would be done with ParceledList, however it only supports homogeneous types. 10957 * 10958 * @see NetworkLoggingHandler#MAX_EVENTS_PER_BATCH 10959 */ 10960 @Override 10961 public List<NetworkEvent> retrieveNetworkLogs(ComponentName admin, long batchToken) { 10962 if (!mHasFeature) { 10963 return null; 10964 } 10965 Preconditions.checkNotNull(admin); 10966 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10967 10968 synchronized (this) { 10969 if (mNetworkLogger == null 10970 || !isNetworkLoggingEnabledInternalLocked()) { 10971 return null; 10972 } 10973 10974 final long currentTime = System.currentTimeMillis(); 10975 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 10976 if (currentTime > policyData.mLastNetworkLogsRetrievalTime) { 10977 policyData.mLastNetworkLogsRetrievalTime = currentTime; 10978 saveSettingsLocked(UserHandle.USER_SYSTEM); 10979 } 10980 return mNetworkLogger.retrieveLogs(batchToken); 10981 } 10982 } 10983 10984 private void sendNetworkLoggingNotificationLocked() { 10985 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10986 if (deviceOwner == null || !deviceOwner.isNetworkLoggingEnabled) { 10987 return; 10988 } 10989 if (deviceOwner.numNetworkLoggingNotifications >= 10990 ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 10991 return; 10992 } 10993 final long now = System.currentTimeMillis(); 10994 if (now - deviceOwner.lastNetworkLoggingNotificationTimeMs < MS_PER_DAY) { 10995 return; 10996 } 10997 deviceOwner.numNetworkLoggingNotifications++; 10998 if (deviceOwner.numNetworkLoggingNotifications 10999 >= ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 11000 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 11001 } else { 11002 deviceOwner.lastNetworkLoggingNotificationTimeMs = now; 11003 } 11004 final Intent intent = new Intent(DevicePolicyManager.ACTION_SHOW_DEVICE_MONITORING_DIALOG); 11005 intent.setPackage("com.android.systemui"); 11006 final PendingIntent pendingIntent = PendingIntent.getBroadcastAsUser(mContext, 0, intent, 0, 11007 UserHandle.CURRENT); 11008 Notification notification = 11009 new Notification.Builder(mContext, SystemNotificationChannels.DEVICE_ADMIN) 11010 .setSmallIcon(R.drawable.ic_info_outline) 11011 .setContentTitle(mContext.getString(R.string.network_logging_notification_title)) 11012 .setContentText(mContext.getString(R.string.network_logging_notification_text)) 11013 .setTicker(mContext.getString(R.string.network_logging_notification_title)) 11014 .setShowWhen(true) 11015 .setContentIntent(pendingIntent) 11016 .setStyle(new Notification.BigTextStyle() 11017 .bigText(mContext.getString(R.string.network_logging_notification_text))) 11018 .build(); 11019 mInjector.getNotificationManager().notify(SystemMessage.NOTE_NETWORK_LOGGING, notification); 11020 saveSettingsLocked(mOwners.getDeviceOwnerUserId()); 11021 } 11022 11023 /** 11024 * Return the package name of owner in a given user. 11025 */ 11026 private String getOwnerPackageNameForUserLocked(int userId) { 11027 return mOwners.getDeviceOwnerUserId() == userId 11028 ? mOwners.getDeviceOwnerPackageName() 11029 : mOwners.getProfileOwnerPackage(userId); 11030 } 11031 11032 /** 11033 * @param rawIntent Original service intent specified by caller. It must be explicit. 11034 * @param expectedPackageName The expected package name of the resolved service. 11035 * @return Intent that have component explicitly set. {@code null} if no service is resolved 11036 * with the given intent. 11037 * @throws SecurityException if the intent is resolved to an invalid service. 11038 */ 11039 private Intent createCrossUserServiceIntent( 11040 @NonNull Intent rawIntent, @NonNull String expectedPackageName, 11041 @UserIdInt int targetUserId) throws RemoteException, SecurityException { 11042 ResolveInfo info = mIPackageManager.resolveService( 11043 rawIntent, 11044 rawIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 11045 0, // flags 11046 targetUserId); 11047 if (info == null || info.serviceInfo == null) { 11048 Log.e(LOG_TAG, "Fail to look up the service: " + rawIntent 11049 + " or user " + targetUserId + " is not running"); 11050 return null; 11051 } 11052 if (!expectedPackageName.equals(info.serviceInfo.packageName)) { 11053 throw new SecurityException("Only allow to bind service in " + expectedPackageName); 11054 } 11055 // STOPSHIP(b/37624960): Remove info.serviceInfo.exported before release. 11056 if (info.serviceInfo.exported && !BIND_DEVICE_ADMIN.equals(info.serviceInfo.permission)) { 11057 throw new SecurityException( 11058 "Service must be protected by BIND_DEVICE_ADMIN permission"); 11059 } 11060 // It is the system server to bind the service, it would be extremely dangerous if it 11061 // can be exploited to bind any service. Set the component explicitly to make sure we 11062 // do not bind anything accidentally. 11063 rawIntent.setComponent(info.serviceInfo.getComponentName()); 11064 return rawIntent; 11065 } 11066 11067 @Override 11068 public long getLastSecurityLogRetrievalTime() { 11069 enforceDeviceOwnerOrManageUsers(); 11070 return getUserData(UserHandle.USER_SYSTEM).mLastSecurityLogRetrievalTime; 11071 } 11072 11073 @Override 11074 public long getLastBugReportRequestTime() { 11075 enforceDeviceOwnerOrManageUsers(); 11076 return getUserData(UserHandle.USER_SYSTEM).mLastBugReportRequestTime; 11077 } 11078 11079 @Override 11080 public long getLastNetworkLogRetrievalTime() { 11081 enforceDeviceOwnerOrManageUsers(); 11082 return getUserData(UserHandle.USER_SYSTEM).mLastNetworkLogsRetrievalTime; 11083 } 11084 11085 @Override 11086 public boolean setResetPasswordToken(ComponentName admin, byte[] token) { 11087 if (!mHasFeature) { 11088 return false; 11089 } 11090 if (token == null || token.length < 32) { 11091 throw new IllegalArgumentException("token must be at least 32-byte long"); 11092 } 11093 synchronized (this) { 11094 final int userHandle = mInjector.userHandleGetCallingUserId(); 11095 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11096 11097 DevicePolicyData policy = getUserData(userHandle); 11098 long ident = mInjector.binderClearCallingIdentity(); 11099 try { 11100 if (policy.mPasswordTokenHandle != 0) { 11101 mLockPatternUtils.removeEscrowToken(policy.mPasswordTokenHandle, userHandle); 11102 } 11103 11104 policy.mPasswordTokenHandle = mLockPatternUtils.addEscrowToken(token, userHandle); 11105 saveSettingsLocked(userHandle); 11106 return policy.mPasswordTokenHandle != 0; 11107 } finally { 11108 mInjector.binderRestoreCallingIdentity(ident); 11109 } 11110 } 11111 } 11112 11113 @Override 11114 public boolean clearResetPasswordToken(ComponentName admin) { 11115 if (!mHasFeature) { 11116 return false; 11117 } 11118 synchronized (this) { 11119 final int userHandle = mInjector.userHandleGetCallingUserId(); 11120 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11121 11122 DevicePolicyData policy = getUserData(userHandle); 11123 if (policy.mPasswordTokenHandle != 0) { 11124 long ident = mInjector.binderClearCallingIdentity(); 11125 try { 11126 boolean result = mLockPatternUtils.removeEscrowToken( 11127 policy.mPasswordTokenHandle, userHandle); 11128 policy.mPasswordTokenHandle = 0; 11129 saveSettingsLocked(userHandle); 11130 return result; 11131 } finally { 11132 mInjector.binderRestoreCallingIdentity(ident); 11133 } 11134 } 11135 } 11136 return false; 11137 } 11138 11139 @Override 11140 public boolean isResetPasswordTokenActive(ComponentName admin) { 11141 synchronized (this) { 11142 final int userHandle = mInjector.userHandleGetCallingUserId(); 11143 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11144 11145 DevicePolicyData policy = getUserData(userHandle); 11146 if (policy.mPasswordTokenHandle != 0) { 11147 long ident = mInjector.binderClearCallingIdentity(); 11148 try { 11149 return mLockPatternUtils.isEscrowTokenActive(policy.mPasswordTokenHandle, 11150 userHandle); 11151 } finally { 11152 mInjector.binderRestoreCallingIdentity(ident); 11153 } 11154 } 11155 } 11156 return false; 11157 } 11158 11159 @Override 11160 public boolean resetPasswordWithToken(ComponentName admin, String passwordOrNull, byte[] token, 11161 int flags) { 11162 Preconditions.checkNotNull(token); 11163 synchronized (this) { 11164 final int userHandle = mInjector.userHandleGetCallingUserId(); 11165 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11166 11167 DevicePolicyData policy = getUserData(userHandle); 11168 if (policy.mPasswordTokenHandle != 0) { 11169 final String password = passwordOrNull != null ? passwordOrNull : ""; 11170 return resetPasswordInternal(password, policy.mPasswordTokenHandle, token, 11171 flags, mInjector.binderGetCallingUid(), userHandle); 11172 } else { 11173 Slog.w(LOG_TAG, "No saved token handle"); 11174 } 11175 } 11176 return false; 11177 } 11178 11179 @Override 11180 public boolean isCurrentInputMethodSetByOwner() { 11181 enforceProfileOwnerOrSystemUser(); 11182 return getUserData(mInjector.userHandleGetCallingUserId()).mCurrentInputMethodSet; 11183 } 11184 11185 @Override 11186 public StringParceledListSlice getOwnerInstalledCaCerts(@NonNull UserHandle user) { 11187 final int userId = user.getIdentifier(); 11188 enforceProfileOwnerOrFullCrossUsersPermission(userId); 11189 synchronized (this) { 11190 return new StringParceledListSlice( 11191 new ArrayList<>(getUserData(userId).mOwnerInstalledCaCerts)); 11192 } 11193 } 11194 11195 @Override 11196 public boolean clearApplicationUserData(ComponentName admin, String packageName, 11197 IPackageDataObserver callback) { 11198 Preconditions.checkNotNull(admin, "ComponentName is null"); 11199 synchronized (this) { 11200 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11201 } 11202 final int userId = UserHandle.getCallingUserId(); 11203 11204 long ident = mInjector.binderClearCallingIdentity(); 11205 try { 11206 return ActivityManager.getService().clearApplicationUserData(packageName, callback, 11207 userId); 11208 } catch(RemoteException re) { 11209 // Same process, should not happen. 11210 } catch (SecurityException se) { 11211 // This can happen e.g. for device admin packages, do not throw out the exception, 11212 // because callers have no means to know beforehand for which packages this might 11213 // happen. 11214 Slog.w(LOG_TAG, "Not allowed to clear application user data for package " + packageName, 11215 se); 11216 } finally { 11217 mInjector.binderRestoreCallingIdentity(ident); 11218 } 11219 11220 if (callback != null) { 11221 try { 11222 // If there was a throw above, we send back that removal failed 11223 callback.onRemoveCompleted(packageName, false); 11224 } catch (RemoteException re) { 11225 // Caller is no longer available, ignore 11226 } 11227 } 11228 return false; 11229 } 11230} 11231