DevicePolicyManagerService.java revision 9bd54c1cd8dc365a2d07ff5563df6acec835be4d
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.ActivityManager.LOCK_TASK_MODE_NONE; 22import static android.app.ActivityManager.USER_OP_SUCCESS; 23import static android.app.admin.DeviceAdminReceiver.EXTRA_TRANSFER_OWNERSHIP_ADMIN_EXTRAS_BUNDLE; 24import static android.app.admin.DevicePolicyManager.ACTION_PROVISION_MANAGED_USER; 25import static android.app.admin.DevicePolicyManager.CODE_ACCOUNTS_NOT_EMPTY; 26import static android.app.admin.DevicePolicyManager.CODE_ADD_MANAGED_PROFILE_DISALLOWED; 27import static android.app.admin.DevicePolicyManager.CODE_CANNOT_ADD_MANAGED_PROFILE; 28import static android.app.admin.DevicePolicyManager.CODE_DEVICE_ADMIN_NOT_SUPPORTED; 29import static android.app.admin.DevicePolicyManager.CODE_HAS_DEVICE_OWNER; 30import static android.app.admin.DevicePolicyManager.CODE_HAS_PAIRED; 31import static android.app.admin.DevicePolicyManager.CODE_MANAGED_USERS_NOT_SUPPORTED; 32import static android.app.admin.DevicePolicyManager.CODE_NONSYSTEM_USER_EXISTS; 33import static android.app.admin.DevicePolicyManager.CODE_NOT_SYSTEM_USER; 34import static android.app.admin.DevicePolicyManager.CODE_NOT_SYSTEM_USER_SPLIT; 35import static android.app.admin.DevicePolicyManager.CODE_OK; 36import static android.app.admin.DevicePolicyManager.CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 37import static android.app.admin.DevicePolicyManager.CODE_SYSTEM_USER; 38import static android.app.admin.DevicePolicyManager.CODE_USER_HAS_PROFILE_OWNER; 39import static android.app.admin.DevicePolicyManager.CODE_USER_NOT_RUNNING; 40import static android.app.admin.DevicePolicyManager.CODE_USER_SETUP_COMPLETED; 41import static android.app.admin.DevicePolicyManager.DELEGATION_APP_RESTRICTIONS; 42import static android.app.admin.DevicePolicyManager.DELEGATION_BLOCK_UNINSTALL; 43import static android.app.admin.DevicePolicyManager.DELEGATION_CERT_INSTALL; 44import static android.app.admin.DevicePolicyManager.DELEGATION_ENABLE_SYSTEM_APP; 45import static android.app.admin.DevicePolicyManager.DELEGATION_INSTALL_EXISTING_PACKAGE; 46import static android.app.admin.DevicePolicyManager.DELEGATION_KEEP_UNINSTALLED_PACKAGES; 47import static android.app.admin.DevicePolicyManager.DELEGATION_PACKAGE_ACCESS; 48import static android.app.admin.DevicePolicyManager.DELEGATION_PERMISSION_GRANT; 49import static android.app.admin.DevicePolicyManager.ID_TYPE_BASE_INFO; 50import static android.app.admin.DevicePolicyManager.ID_TYPE_IMEI; 51import static android.app.admin.DevicePolicyManager.ID_TYPE_MEID; 52import static android.app.admin.DevicePolicyManager.ID_TYPE_SERIAL; 53import static android.app.admin.DevicePolicyManager.LEAVE_ALL_SYSTEM_APPS_ENABLED; 54import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 55import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 56import static android.app.admin.DevicePolicyManager.PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 57import static android.app.admin.DevicePolicyManager.WIPE_EUICC; 58import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 59import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 60import static android.content.pm.PackageManager.MATCH_UNINSTALLED_PACKAGES; 61 62import static android.provider.Telephony.Carriers.DPC_URI; 63import static android.provider.Telephony.Carriers.ENFORCE_KEY; 64import static android.provider.Telephony.Carriers.ENFORCE_MANAGED_URI; 65 66import static com.android.internal.logging.nano.MetricsProto.MetricsEvent 67 .PROVISIONING_ENTRY_POINT_ADB; 68import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker 69 .STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 70 71import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_ENTRY_POINT_ADB; 72import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 73 74import static com.android.server.devicepolicy.TransferOwnershipMetadataManager.ADMIN_TYPE_DEVICE_OWNER; 75import static com.android.server.devicepolicy.TransferOwnershipMetadataManager.ADMIN_TYPE_PROFILE_OWNER; 76 77import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 78import static org.xmlpull.v1.XmlPullParser.END_TAG; 79import static org.xmlpull.v1.XmlPullParser.TEXT; 80 81import android.Manifest.permission; 82import android.accessibilityservice.AccessibilityServiceInfo; 83import android.accounts.Account; 84import android.accounts.AccountManager; 85import android.annotation.NonNull; 86import android.annotation.Nullable; 87import android.annotation.UserIdInt; 88import android.app.Activity; 89import android.app.ActivityManager; 90import android.app.ActivityManagerInternal; 91import android.app.ActivityThread; 92import android.app.AlarmManager; 93import android.app.AppGlobals; 94import android.app.IActivityManager; 95import android.app.IApplicationThread; 96import android.app.IServiceConnection; 97import android.app.Notification; 98import android.app.NotificationManager; 99import android.app.PendingIntent; 100import android.app.StatusBarManager; 101import android.app.admin.DeviceAdminInfo; 102import android.app.admin.DeviceAdminReceiver; 103import android.app.admin.DevicePolicyManager; 104import android.app.admin.DevicePolicyManagerInternal; 105import android.app.admin.NetworkEvent; 106import android.app.admin.PasswordMetrics; 107import android.app.admin.SecurityLog; 108import android.app.admin.SecurityLog.SecurityEvent; 109import android.app.admin.SystemUpdateInfo; 110import android.app.admin.SystemUpdatePolicy; 111import android.app.backup.IBackupManager; 112import android.app.trust.TrustManager; 113import android.app.usage.UsageStatsManagerInternal; 114import android.content.BroadcastReceiver; 115import android.content.ComponentName; 116import android.content.ContentValues; 117import android.content.Context; 118import android.content.Intent; 119import android.content.IntentFilter; 120import android.content.pm.ActivityInfo; 121import android.content.pm.ApplicationInfo; 122import android.content.pm.IPackageDataObserver; 123import android.content.pm.IPackageManager; 124import android.content.pm.PackageInfo; 125import android.content.pm.PackageManager; 126import android.content.pm.PackageManager.NameNotFoundException; 127import android.content.pm.PackageManagerInternal; 128import android.content.pm.ParceledListSlice; 129import android.content.pm.PermissionInfo; 130import android.content.pm.ResolveInfo; 131import android.content.pm.ServiceInfo; 132import android.content.pm.StringParceledListSlice; 133import android.content.pm.UserInfo; 134import android.content.res.Resources; 135import android.database.ContentObserver; 136import android.database.Cursor; 137import android.graphics.Bitmap; 138import android.graphics.Color; 139import android.media.AudioManager; 140import android.media.IAudioService; 141import android.net.ConnectivityManager; 142import android.net.IIpConnectivityMetrics; 143import android.net.ProxyInfo; 144import android.net.Uri; 145import android.net.metrics.IpConnectivityLog; 146import android.net.wifi.WifiInfo; 147import android.net.wifi.WifiManager; 148import android.os.Binder; 149import android.os.Build; 150import android.os.Bundle; 151import android.os.Environment; 152import android.os.FileUtils; 153import android.os.Handler; 154import android.os.IBinder; 155import android.os.Looper; 156import android.os.ParcelFileDescriptor; 157import android.os.PersistableBundle; 158import android.os.PowerManager; 159import android.os.PowerManagerInternal; 160import android.os.Process; 161import android.os.RecoverySystem; 162import android.os.RemoteCallback; 163import android.os.RemoteException; 164import android.os.ServiceManager; 165import android.os.SystemClock; 166import android.os.SystemProperties; 167import android.os.UserHandle; 168import android.os.UserManager; 169import android.os.UserManagerInternal; 170import android.os.UserManagerInternal.UserRestrictionsListener; 171import android.os.storage.StorageManager; 172import android.provider.ContactsContract.QuickContact; 173import android.provider.ContactsInternal; 174import android.provider.Settings; 175import android.provider.Settings.Global; 176import android.security.IKeyChainAliasCallback; 177import android.security.IKeyChainService; 178import android.security.KeyChain; 179import android.security.KeyChain.KeyChainConnection; 180import android.security.KeyStore; 181import android.security.keymaster.KeymasterCertificateChain; 182import android.security.keystore.AttestationUtils; 183import android.security.keystore.KeyGenParameterSpec; 184import android.security.keystore.ParcelableKeyGenParameterSpec; 185import android.service.persistentdata.PersistentDataBlockManager; 186import android.telephony.TelephonyManager; 187import android.telephony.data.ApnSetting; 188import android.text.TextUtils; 189import android.util.ArrayMap; 190import android.util.ArraySet; 191import android.util.AtomicFile; 192import android.util.Log; 193import android.util.Pair; 194import android.util.Slog; 195import android.util.SparseArray; 196import android.util.Xml; 197import android.view.IWindowManager; 198import android.view.accessibility.AccessibilityManager; 199import android.view.accessibility.IAccessibilityManager; 200import android.view.inputmethod.InputMethodInfo; 201import android.view.inputmethod.InputMethodManager; 202 203import com.android.internal.R; 204import com.android.internal.annotations.GuardedBy; 205import com.android.internal.annotations.VisibleForTesting; 206import com.android.internal.logging.MetricsLogger; 207import com.android.internal.messages.nano.SystemMessageProto.SystemMessage; 208import com.android.internal.notification.SystemNotificationChannels; 209import com.android.internal.os.BackgroundThread; 210import com.android.internal.statusbar.IStatusBarService; 211import com.android.internal.util.DumpUtils; 212import com.android.internal.util.FastXmlSerializer; 213import com.android.internal.util.FunctionalUtils.ThrowingRunnable; 214import com.android.internal.util.JournaledFile; 215import com.android.internal.util.Preconditions; 216import com.android.internal.util.XmlUtils; 217import com.android.internal.widget.LockPatternUtils; 218import com.android.server.LocalServices; 219import com.android.server.SystemServerInitThreadPool; 220import com.android.server.SystemService; 221import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 222import com.android.server.net.NetworkPolicyManagerInternal; 223import com.android.server.pm.UserRestrictionsUtils; 224 225import com.google.android.collect.Sets; 226 227import org.xmlpull.v1.XmlPullParser; 228import org.xmlpull.v1.XmlPullParserException; 229import org.xmlpull.v1.XmlSerializer; 230 231import java.io.File; 232import java.io.FileDescriptor; 233import java.io.FileInputStream; 234import java.io.FileNotFoundException; 235import java.io.FileOutputStream; 236import java.io.IOException; 237import java.io.PrintWriter; 238import java.lang.reflect.Constructor; 239import java.nio.charset.StandardCharsets; 240import java.text.DateFormat; 241import java.util.ArrayList; 242import java.util.Arrays; 243import java.util.Collection; 244import java.util.Collections; 245import java.util.Date; 246import java.util.HashMap; 247import java.util.List; 248import java.util.Map; 249import java.util.Map.Entry; 250import java.util.Objects; 251import java.util.Map.Entry; 252import java.util.Set; 253import java.util.concurrent.TimeUnit; 254import java.util.concurrent.atomic.AtomicBoolean; 255import java.util.function.Function; 256 257/** 258 * Implementation of the device policy APIs. 259 */ 260public class DevicePolicyManagerService extends BaseIDevicePolicyManager { 261 262 protected static final String LOG_TAG = "DevicePolicyManager"; 263 264 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 265 266 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 267 268 private static final String TRANSFER_OWNERSHIP_PARAMETERS_XML = 269 "transfer-ownership-parameters.xml"; 270 271 private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate"; 272 273 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 274 275 private static final String TAG_LOCK_TASK_FEATURES = "lock-task-features"; 276 277 private static final String TAG_STATUS_BAR = "statusbar"; 278 279 private static final String ATTR_DISABLED = "disabled"; 280 281 private static final String ATTR_NAME = "name"; 282 283 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 284 "do-not-ask-credentials-on-boot"; 285 286 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 287 288 private static final String TAG_LAST_SECURITY_LOG_RETRIEVAL = "last-security-log-retrieval"; 289 290 private static final String TAG_LAST_BUG_REPORT_REQUEST = "last-bug-report-request"; 291 292 private static final String TAG_LAST_NETWORK_LOG_RETRIEVAL = "last-network-log-retrieval"; 293 294 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 295 296 private static final String TAG_CURRENT_INPUT_METHOD_SET = "current-ime-set"; 297 298 private static final String TAG_OWNER_INSTALLED_CA_CERT = "owner-installed-ca-cert"; 299 300 private static final String ATTR_ID = "id"; 301 302 private static final String ATTR_VALUE = "value"; 303 304 private static final String ATTR_ALIAS = "alias"; 305 306 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 307 308 private static final String TAG_PASSWORD_TOKEN_HANDLE = "password-token"; 309 310 private static final String TAG_PASSWORD_VALIDITY = "password-validity"; 311 312 private static final String TAG_PRINTING_ENABLED = "printing-enabled"; 313 314 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 315 316 private static final long MS_PER_DAY = TimeUnit.DAYS.toMillis(1); 317 318 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 319 320 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 321 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 322 323 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 324 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 325 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 326 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 327 private static final String ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED = 328 "device-provisioning-config-applied"; 329 private static final String ATTR_DEVICE_PAIRED = "device-paired"; 330 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 331 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 332 = "application-restrictions-manager"; 333 334 private static final String MANAGED_PROVISIONING_PKG = "com.android.managedprovisioning"; 335 336 // Comprehensive list of delegations. 337 private static final String DELEGATIONS[] = { 338 DELEGATION_CERT_INSTALL, 339 DELEGATION_APP_RESTRICTIONS, 340 DELEGATION_BLOCK_UNINSTALL, 341 DELEGATION_ENABLE_SYSTEM_APP, 342 DELEGATION_KEEP_UNINSTALLED_PACKAGES, 343 DELEGATION_PACKAGE_ACCESS, 344 DELEGATION_PERMISSION_GRANT, 345 DELEGATION_INSTALL_EXISTING_PACKAGE, 346 DELEGATION_KEEP_UNINSTALLED_PACKAGES 347 }; 348 349 /** 350 * System property whose value is either "true" or "false", indicating whether 351 * device owner is present. 352 */ 353 private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner"; 354 355 private static final int STATUS_BAR_DISABLE_MASK = 356 StatusBarManager.DISABLE_EXPAND | 357 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 358 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 359 StatusBarManager.DISABLE_SEARCH; 360 361 private static final int STATUS_BAR_DISABLE2_MASK = 362 StatusBarManager.DISABLE2_QUICK_SETTINGS; 363 364 private static final Set<String> SECURE_SETTINGS_WHITELIST; 365 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 366 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 367 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 368 private static final Set<String> SYSTEM_SETTINGS_WHITELIST; 369 static { 370 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 371 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 372 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 373 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 374 375 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 376 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 377 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 378 379 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 380 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 381 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 382 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 383 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 384 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 385 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 386 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 387 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 388 389 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 390 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 391 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 392 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 393 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 394 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 395 396 SYSTEM_SETTINGS_WHITELIST = new ArraySet<>(); 397 SYSTEM_SETTINGS_WHITELIST.add(Settings.System.SCREEN_BRIGHTNESS); 398 SYSTEM_SETTINGS_WHITELIST.add(Settings.System.SCREEN_BRIGHTNESS_MODE); 399 SYSTEM_SETTINGS_WHITELIST.add(Settings.System.SCREEN_OFF_TIMEOUT); 400 } 401 402 /** 403 * Keyguard features that when set on a profile affect the profile content or challenge only. 404 * These cannot be set on the managed profile's parent DPM instance 405 */ 406 private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY = 407 DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 408 409 /** Keyguard features that are allowed to be set on a managed profile */ 410 private static final int PROFILE_KEYGUARD_FEATURES = 411 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY; 412 413 private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000; 414 415 /** 416 * Minimum timeout in milliseconds after which unlocking with weak auth times out, 417 * i.e. the user has to use a strong authentication method like password, PIN or pattern. 418 */ 419 private static final long MINIMUM_STRONG_AUTH_TIMEOUT_MS = TimeUnit.HOURS.toMillis(1); 420 421 /** 422 * Strings logged with {@link 423 * com.android.internal.logging.nano.MetricsProto.MetricsEvent#PROVISIONING_ENTRY_POINT_ADB}. 424 */ 425 private static final String LOG_TAG_PROFILE_OWNER = "profile-owner"; 426 private static final String LOG_TAG_DEVICE_OWNER = "device-owner"; 427 428 final Context mContext; 429 final Injector mInjector; 430 final IPackageManager mIPackageManager; 431 final UserManager mUserManager; 432 final UserManagerInternal mUserManagerInternal; 433 final UsageStatsManagerInternal mUsageStatsManagerInternal; 434 final TelephonyManager mTelephonyManager; 435 private final LockPatternUtils mLockPatternUtils; 436 private final DevicePolicyConstants mConstants; 437 private final DeviceAdminServiceController mDeviceAdminServiceController; 438 private final OverlayPackagesProvider mOverlayPackagesProvider; 439 440 /** 441 * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p 442 * is requested for user u. 443 */ 444 private final Set<Pair<String, Integer>> mPackagesToRemove = 445 new ArraySet<Pair<String, Integer>>(); 446 447 final LocalService mLocalService; 448 449 // Stores and loads state on device and profile owners. 450 @VisibleForTesting 451 final Owners mOwners; 452 453 private final Binder mToken = new Binder(); 454 455 /** 456 * Whether or not device admin feature is supported. If it isn't return defaults for all 457 * public methods. 458 */ 459 boolean mHasFeature; 460 461 /** 462 * Whether or not this device is a watch. 463 */ 464 boolean mIsWatch; 465 466 private final CertificateMonitor mCertificateMonitor; 467 private final SecurityLogMonitor mSecurityLogMonitor; 468 private NetworkLogger mNetworkLogger; 469 470 private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean(); 471 private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean(); 472 473 private SetupContentObserver mSetupContentObserver; 474 475 @VisibleForTesting 476 final TransferOwnershipMetadataManager mTransferOwnershipMetadataManager; 477 478 private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() { 479 @Override 480 public void run() { 481 if(mRemoteBugreportServiceIsActive.get()) { 482 onBugreportFailed(); 483 } 484 } 485 }; 486 487 /** Listens only if mHasFeature == true. */ 488 private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() { 489 490 @Override 491 public void onReceive(Context context, Intent intent) { 492 if (DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction()) 493 && mRemoteBugreportServiceIsActive.get()) { 494 onBugreportFinished(intent); 495 } 496 } 497 }; 498 499 /** Listens only if mHasFeature == true. */ 500 private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() { 501 502 @Override 503 public void onReceive(Context context, Intent intent) { 504 String action = intent.getAction(); 505 mInjector.getNotificationManager().cancel(LOG_TAG, 506 RemoteBugreportUtils.NOTIFICATION_ID); 507 if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED.equals(action)) { 508 onBugreportSharingAccepted(); 509 } else if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED.equals(action)) { 510 onBugreportSharingDeclined(); 511 } 512 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 513 } 514 }; 515 516 public static final class Lifecycle extends SystemService { 517 private BaseIDevicePolicyManager mService; 518 519 public Lifecycle(Context context) { 520 super(context); 521 String dpmsClassName = context.getResources() 522 .getString(R.string.config_deviceSpecificDevicePolicyManagerService); 523 if (TextUtils.isEmpty(dpmsClassName)) { 524 dpmsClassName = DevicePolicyManagerService.class.getName(); 525 } 526 try { 527 Class serviceClass = Class.forName(dpmsClassName); 528 Constructor constructor = serviceClass.getConstructor(Context.class); 529 mService = (BaseIDevicePolicyManager) constructor.newInstance(context); 530 } catch (Exception e) { 531 throw new IllegalStateException( 532 "Failed to instantiate DevicePolicyManagerService with class name: " 533 + dpmsClassName, e); 534 } 535 } 536 537 @Override 538 public void onStart() { 539 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 540 } 541 542 @Override 543 public void onBootPhase(int phase) { 544 mService.systemReady(phase); 545 } 546 547 @Override 548 public void onStartUser(int userHandle) { 549 mService.handleStartUser(userHandle); 550 } 551 552 @Override 553 public void onUnlockUser(int userHandle) { 554 mService.handleUnlockUser(userHandle); 555 } 556 557 @Override 558 public void onStopUser(int userHandle) { 559 mService.handleStopUser(userHandle); 560 } 561 } 562 563 public static class DevicePolicyData { 564 @NonNull PasswordMetrics mActivePasswordMetrics = new PasswordMetrics(); 565 int mFailedPasswordAttempts = 0; 566 boolean mPasswordStateHasBeenSetSinceBoot = false; 567 boolean mPasswordValidAtLastCheckpoint = false; 568 569 int mUserHandle; 570 int mPasswordOwner = -1; 571 long mLastMaximumTimeToLock = -1; 572 boolean mUserSetupComplete = false; 573 boolean mPaired = false; 574 int mUserProvisioningState; 575 int mPermissionPolicy; 576 577 boolean mDeviceProvisioningConfigApplied = false; 578 579 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 580 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 581 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 582 583 // TODO(b/35385311): Keep track of metadata in TrustedCertificateStore instead. 584 final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>(); 585 586 // This is the list of component allowed to start lock task mode. 587 List<String> mLockTaskPackages = new ArrayList<>(); 588 589 // Bitfield of feature flags to be enabled during LockTask mode. 590 int mLockTaskFeatures = DevicePolicyManager.LOCK_TASK_FEATURE_NONE; 591 592 boolean mStatusBarDisabled = false; 593 594 ComponentName mRestrictionsProvider; 595 596 // Map of delegate package to delegation scopes 597 final ArrayMap<String, List<String>> mDelegationMap = new ArrayMap<>(); 598 599 boolean doNotAskCredentialsOnBoot = false; 600 601 Set<String> mAffiliationIds = new ArraySet<>(); 602 603 long mLastSecurityLogRetrievalTime = -1; 604 605 long mLastBugReportRequestTime = -1; 606 607 long mLastNetworkLogsRetrievalTime = -1; 608 609 boolean mCurrentInputMethodSet = false; 610 611 // TODO(b/35385311): Keep track of metadata in TrustedCertificateStore instead. 612 Set<String> mOwnerInstalledCaCerts = new ArraySet<>(); 613 614 // Used for initialization of users created by createAndManageUser. 615 boolean mAdminBroadcastPending = false; 616 PersistableBundle mInitBundle = null; 617 618 long mPasswordTokenHandle = 0; 619 620 boolean mPrintingEnabled = true; 621 622 public DevicePolicyData(int userHandle) { 623 mUserHandle = userHandle; 624 } 625 } 626 627 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 628 629 final Handler mHandler; 630 final Handler mBackgroundHandler; 631 632 /** Listens only if mHasFeature == true. */ 633 final BroadcastReceiver mReceiver = new BroadcastReceiver() { 634 @Override 635 public void onReceive(Context context, Intent intent) { 636 final String action = intent.getAction(); 637 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 638 getSendingUserId()); 639 640 /* 641 * Network logging would ideally be started in setDeviceOwnerSystemPropertyLocked(), 642 * however it's too early in the boot process to register with IIpConnectivityMetrics 643 * to listen for events. 644 */ 645 if (Intent.ACTION_USER_STARTED.equals(action) 646 && userHandle == mOwners.getDeviceOwnerUserId()) { 647 synchronized (DevicePolicyManagerService.this) { 648 if (isNetworkLoggingEnabledInternalLocked()) { 649 setNetworkLoggingActiveInternal(true); 650 } 651 } 652 } 653 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 654 && userHandle == mOwners.getDeviceOwnerUserId() 655 && getDeviceOwnerRemoteBugreportUri() != null) { 656 IntentFilter filterConsent = new IntentFilter(); 657 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 658 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 659 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 660 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 661 RemoteBugreportUtils.NOTIFICATION_ID, 662 RemoteBugreportUtils.buildNotification(mContext, 663 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 664 UserHandle.ALL); 665 } 666 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 667 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 668 if (VERBOSE_LOG) { 669 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 670 + action + " for user " + userHandle); 671 } 672 mHandler.post(new Runnable() { 673 @Override 674 public void run() { 675 handlePasswordExpirationNotification(userHandle); 676 } 677 }); 678 } 679 680 if (Intent.ACTION_USER_ADDED.equals(action)) { 681 sendDeviceOwnerUserCommand(DeviceAdminReceiver.ACTION_USER_ADDED, userHandle); 682 synchronized (DevicePolicyManagerService.this) { 683 // It might take a while for the user to become affiliated. Make security 684 // and network logging unavailable in the meantime. 685 maybePauseDeviceWideLoggingLocked(); 686 } 687 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 688 sendDeviceOwnerUserCommand(DeviceAdminReceiver.ACTION_USER_REMOVED, userHandle); 689 synchronized (DevicePolicyManagerService.this) { 690 // Check whether the user is affiliated, *before* removing its data. 691 boolean isRemovedUserAffiliated = isUserAffiliatedWithDeviceLocked(userHandle); 692 removeUserData(userHandle); 693 if (!isRemovedUserAffiliated) { 694 // We discard the logs when unaffiliated users are deleted (so that the 695 // device owner cannot retrieve data about that user after it's gone). 696 discardDeviceWideLogsLocked(); 697 // Resume logging if all remaining users are affiliated. 698 maybeResumeDeviceWideLoggingLocked(); 699 } 700 } 701 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 702 sendDeviceOwnerUserCommand(DeviceAdminReceiver.ACTION_USER_STARTED, userHandle); 703 synchronized (DevicePolicyManagerService.this) { 704 maybeSendAdminEnabledBroadcastLocked(userHandle); 705 // Reset the policy data 706 mUserData.remove(userHandle); 707 } 708 handlePackagesChanged(null /* check all admins */, userHandle); 709 } else if (Intent.ACTION_USER_STOPPED.equals(action)) { 710 sendDeviceOwnerUserCommand(DeviceAdminReceiver.ACTION_USER_STOPPED, userHandle); 711 } else if (Intent.ACTION_USER_SWITCHED.equals(action)) { 712 sendDeviceOwnerUserCommand(DeviceAdminReceiver.ACTION_USER_SWITCHED, userHandle); 713 } else if (Intent.ACTION_USER_UNLOCKED.equals(action)) { 714 synchronized (DevicePolicyManagerService.this) { 715 maybeSendAdminEnabledBroadcastLocked(userHandle); 716 } 717 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 718 handlePackagesChanged(null /* check all admins */, userHandle); 719 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 720 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 721 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 722 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 723 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 724 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 725 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 726 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 727 clearWipeProfileNotification(); 728 } 729 } 730 731 private void sendDeviceOwnerUserCommand(String action, int userHandle) { 732 synchronized (DevicePolicyManagerService.this) { 733 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 734 if (deviceOwner != null) { 735 Bundle extras = new Bundle(); 736 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 737 sendAdminCommandLocked(deviceOwner, action, extras, /* result */ null, 738 /* inForeground */ true); 739 } 740 } 741 } 742 }; 743 744 protected static class RestrictionsListener implements UserRestrictionsListener { 745 private Context mContext; 746 747 public RestrictionsListener(Context context) { 748 mContext = context; 749 } 750 751 public void onUserRestrictionsChanged(int userId, Bundle newRestrictions, 752 Bundle prevRestrictions) { 753 final boolean newlyDisallowed = 754 newRestrictions.getBoolean(UserManager.DISALLOW_SHARE_INTO_MANAGED_PROFILE); 755 final boolean previouslyDisallowed = 756 prevRestrictions.getBoolean(UserManager.DISALLOW_SHARE_INTO_MANAGED_PROFILE); 757 final boolean restrictionChanged = (newlyDisallowed != previouslyDisallowed); 758 759 if (restrictionChanged) { 760 // Notify ManagedProvisioning to update the built-in cross profile intent filters. 761 Intent intent = new Intent( 762 DevicePolicyManager.ACTION_DATA_SHARING_RESTRICTION_CHANGED); 763 intent.setPackage(MANAGED_PROVISIONING_PKG); 764 intent.putExtra(Intent.EXTRA_USER_ID, userId); 765 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 766 mContext.sendBroadcastAsUser(intent, UserHandle.SYSTEM); 767 } 768 } 769 } 770 771 static class ActiveAdmin { 772 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 773 private static final String TAG_TEST_ONLY_ADMIN = "test-only-admin"; 774 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 775 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 776 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 777 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 778 = "disable-bt-contacts-sharing"; 779 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 780 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 781 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 782 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 783 private static final String TAG_IS_NETWORK_LOGGING_ENABLED = "is_network_logging_enabled"; 784 private static final String TAG_ACCOUNT_TYPE = "account-type"; 785 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 786 = "permitted-accessiblity-services"; 787 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 788 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 789 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 790 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 791 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 792 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 793 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 794 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 795 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 796 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 797 private static final String TAG_PERMITTED_NOTIFICATION_LISTENERS = 798 "permitted-notification-listeners"; 799 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 800 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 801 private static final String TAG_STRONG_AUTH_UNLOCK_TIMEOUT = "strong-auth-unlock-timeout"; 802 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 803 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 804 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 805 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 806 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 807 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 808 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 809 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 810 private static final String ATTR_VALUE = "value"; 811 private static final String TAG_PASSWORD_BLACKLIST = "password-blacklist"; 812 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 813 private static final String TAG_POLICIES = "policies"; 814 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 815 "cross-profile-widget-providers"; 816 private static final String TAG_PROVIDER = "provider"; 817 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 818 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 819 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 820 private static final String TAG_DEFAULT_ENABLED_USER_RESTRICTIONS = 821 "default-enabled-user-restrictions"; 822 private static final String TAG_RESTRICTION = "restriction"; 823 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 824 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 825 private static final String TAG_PARENT_ADMIN = "parent-admin"; 826 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 827 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 828 private static final String ATTR_LAST_NETWORK_LOGGING_NOTIFICATION = "last-notification"; 829 private static final String ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS = "num-notifications"; 830 private static final String TAG_IS_LOGOUT_ENABLED = "is_logout_enabled"; 831 private static final String TAG_MANDATORY_BACKUP_TRANSPORT = "mandatory_backup_transport"; 832 private static final String TAG_START_USER_SESSION_MESSAGE = "start_user_session_message"; 833 private static final String TAG_END_USER_SESSION_MESSAGE = "end_user_session_message"; 834 private static final String TAG_METERED_DATA_DISABLED_PACKAGES 835 = "metered_data_disabled_packages"; 836 837 DeviceAdminInfo info; 838 839 840 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 841 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 842 843 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 844 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 845 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 846 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 847 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 848 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 849 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 850 @NonNull 851 PasswordMetrics minimumPasswordMetrics = new PasswordMetrics( 852 PASSWORD_QUALITY_UNSPECIFIED, DEF_MINIMUM_PASSWORD_LENGTH, 853 DEF_MINIMUM_PASSWORD_LETTERS, DEF_MINIMUM_PASSWORD_UPPER_CASE, 854 DEF_MINIMUM_PASSWORD_LOWER_CASE, DEF_MINIMUM_PASSWORD_NUMERIC, 855 DEF_MINIMUM_PASSWORD_SYMBOLS, DEF_MINIMUM_PASSWORD_NON_LETTER); 856 857 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 858 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 859 860 long strongAuthUnlockTimeout = 0; // admin doesn't participate by default 861 862 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 863 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 864 865 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 866 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 867 868 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 869 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 870 871 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 872 873 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 874 875 boolean encryptionRequested = false; 876 boolean testOnlyAdmin = false; 877 boolean disableCamera = false; 878 boolean disableCallerId = false; 879 boolean disableContactsSearch = false; 880 boolean disableBluetoothContactSharing = true; 881 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 882 boolean requireAutoTime = false; // Can only be set by a device owner. 883 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 884 boolean isNetworkLoggingEnabled = false; // Can only be set by a device owner. 885 boolean isLogoutEnabled = false; // Can only be set by a device owner. 886 887 // one notification after enabling + one more after reboots 888 static final int DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN = 2; 889 int numNetworkLoggingNotifications = 0; 890 long lastNetworkLoggingNotificationTimeMs = 0; // Time in milliseconds since epoch 891 892 ActiveAdmin parentAdmin; 893 final boolean isParent; 894 895 static class TrustAgentInfo { 896 public PersistableBundle options; 897 TrustAgentInfo(PersistableBundle bundle) { 898 options = bundle; 899 } 900 } 901 902 // The list of packages which are not allowed to use metered data. 903 List<String> meteredDisabledPackages; 904 905 final Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 906 907 // The list of permitted accessibility services package namesas set by a profile 908 // or device owner. Null means all accessibility services are allowed, empty means 909 // none except system services are allowed. 910 List<String> permittedAccessiblityServices; 911 912 // The list of permitted input methods package names as set by a profile or device owner. 913 // Null means all input methods are allowed, empty means none except system imes are 914 // allowed. 915 List<String> permittedInputMethods; 916 917 // The list of packages allowed to use a NotificationListenerService to receive events for 918 // notifications from this user. Null means that all packages are allowed. Empty list means 919 // that only packages from the system are allowed. 920 List<String> permittedNotificationListeners; 921 922 // List of package names to keep cached. 923 List<String> keepUninstalledPackages; 924 925 // TODO: review implementation decisions with frameworks team 926 boolean specifiesGlobalProxy = false; 927 String globalProxySpec = null; 928 String globalProxyExclusionList = null; 929 930 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 931 932 List<String> crossProfileWidgetProviders; 933 934 Bundle userRestrictions; 935 936 // User restrictions that have already been enabled by default for this admin (either when 937 // setting the device or profile owner, or during a system update if one of those "enabled 938 // by default" restrictions is newly added). 939 final Set<String> defaultEnabledRestrictionsAlreadySet = new ArraySet<>(); 940 941 // Support text provided by the admin to display to the user. 942 CharSequence shortSupportMessage = null; 943 CharSequence longSupportMessage = null; 944 945 // Background color of confirm credentials screen. Default: teal. 946 static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B"); 947 int organizationColor = DEF_ORGANIZATION_COLOR; 948 949 // Default title of confirm credentials screen 950 String organizationName = null; 951 952 // The blacklist data is stored in a file whose name is stored in the XML 953 String passwordBlacklistFile = null; 954 955 // The component name of the backup transport which has to be used if backups are mandatory 956 // or null if backups are not mandatory. 957 ComponentName mandatoryBackupTransport = null; 958 959 // Message for user switcher 960 String startUserSessionMessage = null; 961 String endUserSessionMessage = null; 962 963 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 964 info = _info; 965 isParent = parent; 966 } 967 968 ActiveAdmin getParentActiveAdmin() { 969 Preconditions.checkState(!isParent); 970 971 if (parentAdmin == null) { 972 parentAdmin = new ActiveAdmin(info, /* parent */ true); 973 } 974 return parentAdmin; 975 } 976 977 boolean hasParentActiveAdmin() { 978 return parentAdmin != null; 979 } 980 981 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 982 983 public UserHandle getUserHandle() { 984 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 985 } 986 987 void writeToXml(XmlSerializer out) 988 throws IllegalArgumentException, IllegalStateException, IOException { 989 out.startTag(null, TAG_POLICIES); 990 info.writePoliciesToXml(out); 991 out.endTag(null, TAG_POLICIES); 992 if (minimumPasswordMetrics.quality != PASSWORD_QUALITY_UNSPECIFIED) { 993 out.startTag(null, TAG_PASSWORD_QUALITY); 994 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.quality)); 995 out.endTag(null, TAG_PASSWORD_QUALITY); 996 if (minimumPasswordMetrics.length != DEF_MINIMUM_PASSWORD_LENGTH) { 997 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 998 out.attribute( 999 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.length)); 1000 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 1001 } 1002 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 1003 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 1004 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 1005 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 1006 } 1007 if (minimumPasswordMetrics.upperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 1008 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 1009 out.attribute( 1010 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.upperCase)); 1011 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 1012 } 1013 if (minimumPasswordMetrics.lowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 1014 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 1015 out.attribute( 1016 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.lowerCase)); 1017 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 1018 } 1019 if (minimumPasswordMetrics.letters != DEF_MINIMUM_PASSWORD_LETTERS) { 1020 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 1021 out.attribute( 1022 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.letters)); 1023 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 1024 } 1025 if (minimumPasswordMetrics.numeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 1026 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 1027 out.attribute( 1028 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.numeric)); 1029 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 1030 } 1031 if (minimumPasswordMetrics.symbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 1032 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 1033 out.attribute( 1034 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.symbols)); 1035 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 1036 } 1037 if (minimumPasswordMetrics.nonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 1038 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 1039 out.attribute( 1040 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.nonLetter)); 1041 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 1042 } 1043 } 1044 if (passwordBlacklistFile != null) { 1045 out.startTag(null, TAG_PASSWORD_BLACKLIST); 1046 out.attribute(null, ATTR_VALUE, passwordBlacklistFile); 1047 out.endTag(null, TAG_PASSWORD_BLACKLIST); 1048 } 1049 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 1050 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 1051 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 1052 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 1053 } 1054 if (strongAuthUnlockTimeout != DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 1055 out.startTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 1056 out.attribute(null, ATTR_VALUE, Long.toString(strongAuthUnlockTimeout)); 1057 out.endTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 1058 } 1059 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 1060 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 1061 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 1062 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 1063 } 1064 if (specifiesGlobalProxy) { 1065 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 1066 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 1067 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 1068 if (globalProxySpec != null) { 1069 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 1070 out.attribute(null, ATTR_VALUE, globalProxySpec); 1071 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 1072 } 1073 if (globalProxyExclusionList != null) { 1074 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 1075 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 1076 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 1077 } 1078 } 1079 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 1080 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 1081 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 1082 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 1083 } 1084 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 1085 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 1086 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 1087 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 1088 } 1089 if (encryptionRequested) { 1090 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 1091 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 1092 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 1093 } 1094 if (testOnlyAdmin) { 1095 out.startTag(null, TAG_TEST_ONLY_ADMIN); 1096 out.attribute(null, ATTR_VALUE, Boolean.toString(testOnlyAdmin)); 1097 out.endTag(null, TAG_TEST_ONLY_ADMIN); 1098 } 1099 if (disableCamera) { 1100 out.startTag(null, TAG_DISABLE_CAMERA); 1101 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 1102 out.endTag(null, TAG_DISABLE_CAMERA); 1103 } 1104 if (disableCallerId) { 1105 out.startTag(null, TAG_DISABLE_CALLER_ID); 1106 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 1107 out.endTag(null, TAG_DISABLE_CALLER_ID); 1108 } 1109 if (disableContactsSearch) { 1110 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 1111 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 1112 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 1113 } 1114 if (!disableBluetoothContactSharing) { 1115 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 1116 out.attribute(null, ATTR_VALUE, 1117 Boolean.toString(disableBluetoothContactSharing)); 1118 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 1119 } 1120 if (disableScreenCapture) { 1121 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 1122 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 1123 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 1124 } 1125 if (requireAutoTime) { 1126 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 1127 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 1128 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 1129 } 1130 if (forceEphemeralUsers) { 1131 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 1132 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 1133 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 1134 } 1135 if (isNetworkLoggingEnabled) { 1136 out.startTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 1137 out.attribute(null, ATTR_VALUE, Boolean.toString(isNetworkLoggingEnabled)); 1138 out.attribute(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS, 1139 Integer.toString(numNetworkLoggingNotifications)); 1140 out.attribute(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION, 1141 Long.toString(lastNetworkLoggingNotificationTimeMs)); 1142 out.endTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 1143 } 1144 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 1145 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 1146 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 1147 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 1148 } 1149 if (!accountTypesWithManagementDisabled.isEmpty()) { 1150 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 1151 writeAttributeValuesToXml( 1152 out, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1153 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 1154 } 1155 if (!trustAgentInfos.isEmpty()) { 1156 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 1157 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1158 for (Entry<String, TrustAgentInfo> entry : set) { 1159 TrustAgentInfo trustAgentInfo = entry.getValue(); 1160 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 1161 out.attribute(null, ATTR_VALUE, entry.getKey()); 1162 if (trustAgentInfo.options != null) { 1163 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1164 try { 1165 trustAgentInfo.options.saveToXml(out); 1166 } catch (XmlPullParserException e) { 1167 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 1168 } 1169 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1170 } 1171 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 1172 } 1173 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1174 } 1175 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 1176 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1177 writeAttributeValuesToXml(out, TAG_PROVIDER, crossProfileWidgetProviders); 1178 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1179 } 1180 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 1181 permittedAccessiblityServices); 1182 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 1183 writePackageListToXml(out, TAG_PERMITTED_NOTIFICATION_LISTENERS, 1184 permittedNotificationListeners); 1185 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 1186 writePackageListToXml(out, TAG_METERED_DATA_DISABLED_PACKAGES, meteredDisabledPackages); 1187 if (hasUserRestrictions()) { 1188 UserRestrictionsUtils.writeRestrictions( 1189 out, userRestrictions, TAG_USER_RESTRICTIONS); 1190 } 1191 if (!defaultEnabledRestrictionsAlreadySet.isEmpty()) { 1192 out.startTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1193 writeAttributeValuesToXml( 1194 out, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1195 out.endTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1196 } 1197 if (!TextUtils.isEmpty(shortSupportMessage)) { 1198 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1199 out.text(shortSupportMessage.toString()); 1200 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1201 } 1202 if (!TextUtils.isEmpty(longSupportMessage)) { 1203 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 1204 out.text(longSupportMessage.toString()); 1205 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 1206 } 1207 if (parentAdmin != null) { 1208 out.startTag(null, TAG_PARENT_ADMIN); 1209 parentAdmin.writeToXml(out); 1210 out.endTag(null, TAG_PARENT_ADMIN); 1211 } 1212 if (organizationColor != DEF_ORGANIZATION_COLOR) { 1213 out.startTag(null, TAG_ORGANIZATION_COLOR); 1214 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 1215 out.endTag(null, TAG_ORGANIZATION_COLOR); 1216 } 1217 if (organizationName != null) { 1218 out.startTag(null, TAG_ORGANIZATION_NAME); 1219 out.text(organizationName); 1220 out.endTag(null, TAG_ORGANIZATION_NAME); 1221 } 1222 if (isLogoutEnabled) { 1223 out.startTag(null, TAG_IS_LOGOUT_ENABLED); 1224 out.attribute(null, ATTR_VALUE, Boolean.toString(isLogoutEnabled)); 1225 out.endTag(null, TAG_IS_LOGOUT_ENABLED); 1226 } 1227 if (mandatoryBackupTransport != null) { 1228 out.startTag(null, TAG_MANDATORY_BACKUP_TRANSPORT); 1229 out.attribute(null, ATTR_VALUE, mandatoryBackupTransport.flattenToString()); 1230 out.endTag(null, TAG_MANDATORY_BACKUP_TRANSPORT); 1231 } 1232 if (startUserSessionMessage != null) { 1233 out.startTag(null, TAG_START_USER_SESSION_MESSAGE); 1234 out.text(startUserSessionMessage); 1235 out.endTag(null, TAG_START_USER_SESSION_MESSAGE); 1236 } 1237 if (endUserSessionMessage != null) { 1238 out.startTag(null, TAG_END_USER_SESSION_MESSAGE); 1239 out.text(endUserSessionMessage); 1240 out.endTag(null, TAG_END_USER_SESSION_MESSAGE); 1241 } 1242 } 1243 1244 void writePackageListToXml(XmlSerializer out, String outerTag, 1245 List<String> packageList) 1246 throws IllegalArgumentException, IllegalStateException, IOException { 1247 if (packageList == null) { 1248 return; 1249 } 1250 1251 out.startTag(null, outerTag); 1252 writeAttributeValuesToXml(out, TAG_PACKAGE_LIST_ITEM, packageList); 1253 out.endTag(null, outerTag); 1254 } 1255 1256 void writeAttributeValuesToXml(XmlSerializer out, String tag, 1257 @NonNull Collection<String> values) throws IOException { 1258 for (String value : values) { 1259 out.startTag(null, tag); 1260 out.attribute(null, ATTR_VALUE, value); 1261 out.endTag(null, tag); 1262 } 1263 } 1264 1265 void readFromXml(XmlPullParser parser) 1266 throws XmlPullParserException, IOException { 1267 int outerDepth = parser.getDepth(); 1268 int type; 1269 while ((type=parser.next()) != END_DOCUMENT 1270 && (type != END_TAG || parser.getDepth() > outerDepth)) { 1271 if (type == END_TAG || type == TEXT) { 1272 continue; 1273 } 1274 String tag = parser.getName(); 1275 if (TAG_POLICIES.equals(tag)) { 1276 info.readPoliciesFromXml(parser); 1277 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 1278 minimumPasswordMetrics.quality = Integer.parseInt( 1279 parser.getAttributeValue(null, ATTR_VALUE)); 1280 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 1281 minimumPasswordMetrics.length = Integer.parseInt( 1282 parser.getAttributeValue(null, ATTR_VALUE)); 1283 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 1284 passwordHistoryLength = Integer.parseInt( 1285 parser.getAttributeValue(null, ATTR_VALUE)); 1286 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 1287 minimumPasswordMetrics.upperCase = Integer.parseInt( 1288 parser.getAttributeValue(null, ATTR_VALUE)); 1289 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 1290 minimumPasswordMetrics.lowerCase = Integer.parseInt( 1291 parser.getAttributeValue(null, ATTR_VALUE)); 1292 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 1293 minimumPasswordMetrics.letters = Integer.parseInt( 1294 parser.getAttributeValue(null, ATTR_VALUE)); 1295 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 1296 minimumPasswordMetrics.numeric = Integer.parseInt( 1297 parser.getAttributeValue(null, ATTR_VALUE)); 1298 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 1299 minimumPasswordMetrics.symbols = Integer.parseInt( 1300 parser.getAttributeValue(null, ATTR_VALUE)); 1301 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 1302 minimumPasswordMetrics.nonLetter = Integer.parseInt( 1303 parser.getAttributeValue(null, ATTR_VALUE)); 1304 } else if (TAG_PASSWORD_BLACKLIST.equals(tag)) { 1305 passwordBlacklistFile = parser.getAttributeValue(null, ATTR_VALUE); 1306 }else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 1307 maximumTimeToUnlock = Long.parseLong( 1308 parser.getAttributeValue(null, ATTR_VALUE)); 1309 } else if (TAG_STRONG_AUTH_UNLOCK_TIMEOUT.equals(tag)) { 1310 strongAuthUnlockTimeout = Long.parseLong( 1311 parser.getAttributeValue(null, ATTR_VALUE)); 1312 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 1313 maximumFailedPasswordsForWipe = Integer.parseInt( 1314 parser.getAttributeValue(null, ATTR_VALUE)); 1315 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 1316 specifiesGlobalProxy = Boolean.parseBoolean( 1317 parser.getAttributeValue(null, ATTR_VALUE)); 1318 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 1319 globalProxySpec = 1320 parser.getAttributeValue(null, ATTR_VALUE); 1321 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 1322 globalProxyExclusionList = 1323 parser.getAttributeValue(null, ATTR_VALUE); 1324 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 1325 passwordExpirationTimeout = Long.parseLong( 1326 parser.getAttributeValue(null, ATTR_VALUE)); 1327 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 1328 passwordExpirationDate = Long.parseLong( 1329 parser.getAttributeValue(null, ATTR_VALUE)); 1330 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 1331 encryptionRequested = Boolean.parseBoolean( 1332 parser.getAttributeValue(null, ATTR_VALUE)); 1333 } else if (TAG_TEST_ONLY_ADMIN.equals(tag)) { 1334 testOnlyAdmin = Boolean.parseBoolean( 1335 parser.getAttributeValue(null, ATTR_VALUE)); 1336 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 1337 disableCamera = Boolean.parseBoolean( 1338 parser.getAttributeValue(null, ATTR_VALUE)); 1339 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 1340 disableCallerId = Boolean.parseBoolean( 1341 parser.getAttributeValue(null, ATTR_VALUE)); 1342 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 1343 disableContactsSearch = Boolean.parseBoolean( 1344 parser.getAttributeValue(null, ATTR_VALUE)); 1345 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 1346 disableBluetoothContactSharing = Boolean.parseBoolean(parser 1347 .getAttributeValue(null, ATTR_VALUE)); 1348 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 1349 disableScreenCapture = Boolean.parseBoolean( 1350 parser.getAttributeValue(null, ATTR_VALUE)); 1351 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 1352 requireAutoTime = Boolean.parseBoolean( 1353 parser.getAttributeValue(null, ATTR_VALUE)); 1354 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 1355 forceEphemeralUsers = Boolean.parseBoolean( 1356 parser.getAttributeValue(null, ATTR_VALUE)); 1357 } else if (TAG_IS_NETWORK_LOGGING_ENABLED.equals(tag)) { 1358 isNetworkLoggingEnabled = Boolean.parseBoolean( 1359 parser.getAttributeValue(null, ATTR_VALUE)); 1360 lastNetworkLoggingNotificationTimeMs = Long.parseLong( 1361 parser.getAttributeValue(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION)); 1362 numNetworkLoggingNotifications = Integer.parseInt( 1363 parser.getAttributeValue(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS)); 1364 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 1365 disabledKeyguardFeatures = Integer.parseInt( 1366 parser.getAttributeValue(null, ATTR_VALUE)); 1367 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 1368 readAttributeValues( 1369 parser, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1370 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 1371 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 1372 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 1373 crossProfileWidgetProviders = new ArrayList<>(); 1374 readAttributeValues(parser, TAG_PROVIDER, crossProfileWidgetProviders); 1375 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 1376 permittedAccessiblityServices = readPackageList(parser, tag); 1377 } else if (TAG_PERMITTED_IMES.equals(tag)) { 1378 permittedInputMethods = readPackageList(parser, tag); 1379 } else if (TAG_PERMITTED_NOTIFICATION_LISTENERS.equals(tag)) { 1380 permittedNotificationListeners = readPackageList(parser, tag); 1381 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 1382 keepUninstalledPackages = readPackageList(parser, tag); 1383 } else if (TAG_METERED_DATA_DISABLED_PACKAGES.equals(tag)) { 1384 meteredDisabledPackages = readPackageList(parser, tag); 1385 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 1386 userRestrictions = UserRestrictionsUtils.readRestrictions(parser); 1387 } else if (TAG_DEFAULT_ENABLED_USER_RESTRICTIONS.equals(tag)) { 1388 readAttributeValues( 1389 parser, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1390 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 1391 type = parser.next(); 1392 if (type == XmlPullParser.TEXT) { 1393 shortSupportMessage = parser.getText(); 1394 } else { 1395 Log.w(LOG_TAG, "Missing text when loading short support message"); 1396 } 1397 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 1398 type = parser.next(); 1399 if (type == XmlPullParser.TEXT) { 1400 longSupportMessage = parser.getText(); 1401 } else { 1402 Log.w(LOG_TAG, "Missing text when loading long support message"); 1403 } 1404 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1405 Preconditions.checkState(!isParent); 1406 1407 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1408 parentAdmin.readFromXml(parser); 1409 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1410 organizationColor = Integer.parseInt( 1411 parser.getAttributeValue(null, ATTR_VALUE)); 1412 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1413 type = parser.next(); 1414 if (type == XmlPullParser.TEXT) { 1415 organizationName = parser.getText(); 1416 } else { 1417 Log.w(LOG_TAG, "Missing text when loading organization name"); 1418 } 1419 } else if (TAG_IS_LOGOUT_ENABLED.equals(tag)) { 1420 isLogoutEnabled = Boolean.parseBoolean( 1421 parser.getAttributeValue(null, ATTR_VALUE)); 1422 } else if (TAG_MANDATORY_BACKUP_TRANSPORT.equals(tag)) { 1423 mandatoryBackupTransport = ComponentName.unflattenFromString( 1424 parser.getAttributeValue(null, ATTR_VALUE)); 1425 } else if (TAG_START_USER_SESSION_MESSAGE.equals(tag)) { 1426 type = parser.next(); 1427 if (type == XmlPullParser.TEXT) { 1428 startUserSessionMessage = parser.getText(); 1429 } else { 1430 Log.w(LOG_TAG, "Missing text when loading start session message"); 1431 } 1432 } else if (TAG_END_USER_SESSION_MESSAGE.equals(tag)) { 1433 type = parser.next(); 1434 if (type == XmlPullParser.TEXT) { 1435 endUserSessionMessage = parser.getText(); 1436 } else { 1437 Log.w(LOG_TAG, "Missing text when loading end session message"); 1438 } 1439 } else { 1440 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1441 XmlUtils.skipCurrentTag(parser); 1442 } 1443 } 1444 } 1445 1446 private List<String> readPackageList(XmlPullParser parser, 1447 String tag) throws XmlPullParserException, IOException { 1448 List<String> result = new ArrayList<String>(); 1449 int outerDepth = parser.getDepth(); 1450 int outerType; 1451 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1452 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1453 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1454 continue; 1455 } 1456 String outerTag = parser.getName(); 1457 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1458 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1459 if (packageName != null) { 1460 result.add(packageName); 1461 } else { 1462 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1463 } 1464 } else { 1465 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1466 } 1467 } 1468 return result; 1469 } 1470 1471 private void readAttributeValues( 1472 XmlPullParser parser, String tag, Collection<String> result) 1473 throws XmlPullParserException, IOException { 1474 result.clear(); 1475 int outerDepthDAM = parser.getDepth(); 1476 int typeDAM; 1477 while ((typeDAM=parser.next()) != END_DOCUMENT 1478 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1479 if (typeDAM == END_TAG || typeDAM == TEXT) { 1480 continue; 1481 } 1482 String tagDAM = parser.getName(); 1483 if (tag.equals(tagDAM)) { 1484 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1485 } else { 1486 Slog.e(LOG_TAG, "Expected tag " + tag + " but found " + tagDAM); 1487 } 1488 } 1489 } 1490 1491 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1492 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1493 int outerDepthDAM = parser.getDepth(); 1494 int typeDAM; 1495 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1496 while ((typeDAM=parser.next()) != END_DOCUMENT 1497 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1498 if (typeDAM == END_TAG || typeDAM == TEXT) { 1499 continue; 1500 } 1501 String tagDAM = parser.getName(); 1502 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1503 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1504 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1505 result.put(component, trustAgentInfo); 1506 } else { 1507 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1508 } 1509 } 1510 return result; 1511 } 1512 1513 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1514 throws XmlPullParserException, IOException { 1515 int outerDepthDAM = parser.getDepth(); 1516 int typeDAM; 1517 TrustAgentInfo result = new TrustAgentInfo(null); 1518 while ((typeDAM=parser.next()) != END_DOCUMENT 1519 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1520 if (typeDAM == END_TAG || typeDAM == TEXT) { 1521 continue; 1522 } 1523 String tagDAM = parser.getName(); 1524 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 1525 result.options = PersistableBundle.restoreFromXml(parser); 1526 } else { 1527 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1528 } 1529 } 1530 return result; 1531 } 1532 1533 boolean hasUserRestrictions() { 1534 return userRestrictions != null && userRestrictions.size() > 0; 1535 } 1536 1537 Bundle ensureUserRestrictions() { 1538 if (userRestrictions == null) { 1539 userRestrictions = new Bundle(); 1540 } 1541 return userRestrictions; 1542 } 1543 1544 public void transfer(DeviceAdminInfo deviceAdminInfo) { 1545 if (hasParentActiveAdmin()) { 1546 parentAdmin.info = deviceAdminInfo; 1547 } 1548 info = deviceAdminInfo; 1549 } 1550 1551 void dump(String prefix, PrintWriter pw) { 1552 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1553 pw.print(prefix); pw.print("testOnlyAdmin="); 1554 pw.println(testOnlyAdmin); 1555 pw.print(prefix); pw.println("policies:"); 1556 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1557 if (pols != null) { 1558 for (int i=0; i<pols.size(); i++) { 1559 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1560 } 1561 } 1562 pw.print(prefix); pw.print("passwordQuality=0x"); 1563 pw.println(Integer.toHexString(minimumPasswordMetrics.quality)); 1564 pw.print(prefix); pw.print("minimumPasswordLength="); 1565 pw.println(minimumPasswordMetrics.length); 1566 pw.print(prefix); pw.print("passwordHistoryLength="); 1567 pw.println(passwordHistoryLength); 1568 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1569 pw.println(minimumPasswordMetrics.upperCase); 1570 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1571 pw.println(minimumPasswordMetrics.lowerCase); 1572 pw.print(prefix); pw.print("minimumPasswordLetters="); 1573 pw.println(minimumPasswordMetrics.letters); 1574 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1575 pw.println(minimumPasswordMetrics.numeric); 1576 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1577 pw.println(minimumPasswordMetrics.symbols); 1578 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1579 pw.println(minimumPasswordMetrics.nonLetter); 1580 pw.print(prefix); pw.print("passwordBlacklist="); 1581 pw.println(passwordBlacklistFile != null); 1582 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1583 pw.println(maximumTimeToUnlock); 1584 pw.print(prefix); pw.print("strongAuthUnlockTimeout="); 1585 pw.println(strongAuthUnlockTimeout); 1586 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1587 pw.println(maximumFailedPasswordsForWipe); 1588 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1589 pw.println(specifiesGlobalProxy); 1590 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1591 pw.println(passwordExpirationTimeout); 1592 pw.print(prefix); pw.print("passwordExpirationDate="); 1593 pw.println(passwordExpirationDate); 1594 if (globalProxySpec != null) { 1595 pw.print(prefix); pw.print("globalProxySpec="); 1596 pw.println(globalProxySpec); 1597 } 1598 if (globalProxyExclusionList != null) { 1599 pw.print(prefix); pw.print("globalProxyEclusionList="); 1600 pw.println(globalProxyExclusionList); 1601 } 1602 pw.print(prefix); pw.print("encryptionRequested="); 1603 pw.println(encryptionRequested); 1604 pw.print(prefix); pw.print("disableCamera="); 1605 pw.println(disableCamera); 1606 pw.print(prefix); pw.print("disableCallerId="); 1607 pw.println(disableCallerId); 1608 pw.print(prefix); pw.print("disableContactsSearch="); 1609 pw.println(disableContactsSearch); 1610 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1611 pw.println(disableBluetoothContactSharing); 1612 pw.print(prefix); pw.print("disableScreenCapture="); 1613 pw.println(disableScreenCapture); 1614 pw.print(prefix); pw.print("requireAutoTime="); 1615 pw.println(requireAutoTime); 1616 pw.print(prefix); pw.print("forceEphemeralUsers="); 1617 pw.println(forceEphemeralUsers); 1618 pw.print(prefix); pw.print("isNetworkLoggingEnabled="); 1619 pw.println(isNetworkLoggingEnabled); 1620 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1621 pw.println(disabledKeyguardFeatures); 1622 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1623 pw.println(crossProfileWidgetProviders); 1624 if (permittedAccessiblityServices != null) { 1625 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1626 pw.println(permittedAccessiblityServices); 1627 } 1628 if (permittedInputMethods != null) { 1629 pw.print(prefix); pw.print("permittedInputMethods="); 1630 pw.println(permittedInputMethods); 1631 } 1632 if (permittedNotificationListeners != null) { 1633 pw.print(prefix); pw.print("permittedNotificationListeners="); 1634 pw.println(permittedNotificationListeners); 1635 } 1636 if (keepUninstalledPackages != null) { 1637 pw.print(prefix); pw.print("keepUninstalledPackages="); 1638 pw.println(keepUninstalledPackages); 1639 } 1640 pw.print(prefix); pw.print("organizationColor="); 1641 pw.println(organizationColor); 1642 if (organizationName != null) { 1643 pw.print(prefix); pw.print("organizationName="); 1644 pw.println(organizationName); 1645 } 1646 pw.print(prefix); pw.println("userRestrictions:"); 1647 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1648 pw.print(prefix); pw.print("defaultEnabledRestrictionsAlreadySet="); 1649 pw.println(defaultEnabledRestrictionsAlreadySet); 1650 pw.print(prefix); pw.print("isParent="); 1651 pw.println(isParent); 1652 if (parentAdmin != null) { 1653 pw.print(prefix); pw.println("parentAdmin:"); 1654 parentAdmin.dump(prefix + " ", pw); 1655 } 1656 } 1657 } 1658 1659 private void handlePackagesChanged(@Nullable String packageName, int userHandle) { 1660 boolean removedAdmin = false; 1661 if (VERBOSE_LOG) { 1662 Slog.d(LOG_TAG, "Handling package changes package " + packageName 1663 + " for user " + userHandle); 1664 } 1665 DevicePolicyData policy = getUserData(userHandle); 1666 synchronized (this) { 1667 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1668 ActiveAdmin aa = policy.mAdminList.get(i); 1669 try { 1670 // If we're checking all packages or if the specific one we're checking matches, 1671 // then check if the package and receiver still exist. 1672 final String adminPackage = aa.info.getPackageName(); 1673 if (packageName == null || packageName.equals(adminPackage)) { 1674 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1675 || mIPackageManager.getReceiverInfo(aa.info.getComponent(), 1676 PackageManager.MATCH_DIRECT_BOOT_AWARE 1677 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 1678 userHandle) == null) { 1679 removedAdmin = true; 1680 policy.mAdminList.remove(i); 1681 policy.mAdminMap.remove(aa.info.getComponent()); 1682 pushActiveAdminPackagesLocked(userHandle); 1683 pushMeteredDisabledPackagesLocked(userHandle); 1684 } 1685 } 1686 } catch (RemoteException re) { 1687 // Shouldn't happen. 1688 } 1689 } 1690 if (removedAdmin) { 1691 validatePasswordOwnerLocked(policy); 1692 } 1693 1694 boolean removedDelegate = false; 1695 1696 // Check if a delegate was removed. 1697 for (int i = policy.mDelegationMap.size() - 1; i >= 0; i--) { 1698 final String delegatePackage = policy.mDelegationMap.keyAt(i); 1699 if (isRemovedPackage(packageName, delegatePackage, userHandle)) { 1700 policy.mDelegationMap.removeAt(i); 1701 removedDelegate = true; 1702 } 1703 } 1704 1705 // If it's an owner package, we may need to refresh the bound connection. 1706 final ComponentName owner = getOwnerComponent(userHandle); 1707 if ((packageName != null) && (owner != null) 1708 && (owner.getPackageName().equals(packageName))) { 1709 startOwnerService(userHandle, "package-broadcast"); 1710 } 1711 1712 // Persist updates if the removed package was an admin or delegate. 1713 if (removedAdmin || removedDelegate) { 1714 saveSettingsLocked(policy.mUserHandle); 1715 } 1716 } 1717 if (removedAdmin) { 1718 // The removed admin might have disabled camera, so update user restrictions. 1719 pushUserRestrictions(userHandle); 1720 } 1721 } 1722 1723 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1724 try { 1725 return targetPackage != null 1726 && (changedPackage == null || changedPackage.equals(targetPackage)) 1727 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1728 } catch (RemoteException e) { 1729 // Shouldn't happen 1730 } 1731 1732 return false; 1733 } 1734 1735 /** 1736 * Unit test will subclass it to inject mocks. 1737 */ 1738 @VisibleForTesting 1739 static class Injector { 1740 1741 public final Context mContext; 1742 1743 Injector(Context context) { 1744 mContext = context; 1745 } 1746 1747 public boolean hasFeature() { 1748 return getPackageManager().hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1749 } 1750 1751 Context createContextAsUser(UserHandle user) throws PackageManager.NameNotFoundException { 1752 final String packageName = mContext.getPackageName(); 1753 return mContext.createPackageContextAsUser(packageName, 0, user); 1754 } 1755 1756 Resources getResources() { 1757 return mContext.getResources(); 1758 } 1759 1760 Owners newOwners() { 1761 return new Owners(getUserManager(), getUserManagerInternal(), 1762 getPackageManagerInternal()); 1763 } 1764 1765 UserManager getUserManager() { 1766 return UserManager.get(mContext); 1767 } 1768 1769 UserManagerInternal getUserManagerInternal() { 1770 return LocalServices.getService(UserManagerInternal.class); 1771 } 1772 1773 PackageManagerInternal getPackageManagerInternal() { 1774 return LocalServices.getService(PackageManagerInternal.class); 1775 } 1776 1777 UsageStatsManagerInternal getUsageStatsManagerInternal() { 1778 return LocalServices.getService(UsageStatsManagerInternal.class); 1779 } 1780 1781 NetworkPolicyManagerInternal getNetworkPolicyManagerInternal() { 1782 return LocalServices.getService(NetworkPolicyManagerInternal.class); 1783 } 1784 1785 NotificationManager getNotificationManager() { 1786 return mContext.getSystemService(NotificationManager.class); 1787 } 1788 1789 IIpConnectivityMetrics getIIpConnectivityMetrics() { 1790 return (IIpConnectivityMetrics) IIpConnectivityMetrics.Stub.asInterface( 1791 ServiceManager.getService(IpConnectivityLog.SERVICE_NAME)); 1792 } 1793 1794 PackageManager getPackageManager() { 1795 return mContext.getPackageManager(); 1796 } 1797 1798 PowerManagerInternal getPowerManagerInternal() { 1799 return LocalServices.getService(PowerManagerInternal.class); 1800 } 1801 1802 TelephonyManager getTelephonyManager() { 1803 return TelephonyManager.from(mContext); 1804 } 1805 1806 TrustManager getTrustManager() { 1807 return (TrustManager) mContext.getSystemService(Context.TRUST_SERVICE); 1808 } 1809 1810 AlarmManager getAlarmManager() { 1811 return (AlarmManager) mContext.getSystemService(AlarmManager.class); 1812 } 1813 1814 IWindowManager getIWindowManager() { 1815 return IWindowManager.Stub 1816 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1817 } 1818 1819 IActivityManager getIActivityManager() { 1820 return ActivityManager.getService(); 1821 } 1822 1823 ActivityManagerInternal getActivityManagerInternal() { 1824 return LocalServices.getService(ActivityManagerInternal.class); 1825 } 1826 1827 IPackageManager getIPackageManager() { 1828 return AppGlobals.getPackageManager(); 1829 } 1830 1831 IBackupManager getIBackupManager() { 1832 return IBackupManager.Stub.asInterface( 1833 ServiceManager.getService(Context.BACKUP_SERVICE)); 1834 } 1835 1836 IAudioService getIAudioService() { 1837 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1838 } 1839 1840 boolean isBuildDebuggable() { 1841 return Build.IS_DEBUGGABLE; 1842 } 1843 1844 LockPatternUtils newLockPatternUtils() { 1845 return new LockPatternUtils(mContext); 1846 } 1847 1848 PasswordBlacklist newPasswordBlacklist(File file) { 1849 return new PasswordBlacklist(file); 1850 } 1851 1852 boolean storageManagerIsFileBasedEncryptionEnabled() { 1853 return StorageManager.isFileEncryptedNativeOnly(); 1854 } 1855 1856 boolean storageManagerIsNonDefaultBlockEncrypted() { 1857 long identity = Binder.clearCallingIdentity(); 1858 try { 1859 return StorageManager.isNonDefaultBlockEncrypted(); 1860 } finally { 1861 Binder.restoreCallingIdentity(identity); 1862 } 1863 } 1864 1865 boolean storageManagerIsEncrypted() { 1866 return StorageManager.isEncrypted(); 1867 } 1868 1869 boolean storageManagerIsEncryptable() { 1870 return StorageManager.isEncryptable(); 1871 } 1872 1873 Looper getMyLooper() { 1874 return Looper.myLooper(); 1875 } 1876 1877 WifiManager getWifiManager() { 1878 return mContext.getSystemService(WifiManager.class); 1879 } 1880 1881 long binderClearCallingIdentity() { 1882 return Binder.clearCallingIdentity(); 1883 } 1884 1885 void binderRestoreCallingIdentity(long token) { 1886 Binder.restoreCallingIdentity(token); 1887 } 1888 1889 int binderGetCallingUid() { 1890 return Binder.getCallingUid(); 1891 } 1892 1893 int binderGetCallingPid() { 1894 return Binder.getCallingPid(); 1895 } 1896 1897 UserHandle binderGetCallingUserHandle() { 1898 return Binder.getCallingUserHandle(); 1899 } 1900 1901 boolean binderIsCallingUidMyUid() { 1902 return getCallingUid() == Process.myUid(); 1903 } 1904 1905 void binderWithCleanCallingIdentity(@NonNull ThrowingRunnable action) { 1906 Binder.withCleanCallingIdentity(action); 1907 } 1908 1909 final int userHandleGetCallingUserId() { 1910 return UserHandle.getUserId(binderGetCallingUid()); 1911 } 1912 1913 File environmentGetUserSystemDirectory(int userId) { 1914 return Environment.getUserSystemDirectory(userId); 1915 } 1916 1917 void powerManagerGoToSleep(long time, int reason, int flags) { 1918 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1919 } 1920 1921 void powerManagerReboot(String reason) { 1922 mContext.getSystemService(PowerManager.class).reboot(reason); 1923 } 1924 1925 void recoverySystemRebootWipeUserData(boolean shutdown, String reason, boolean force, 1926 boolean wipeEuicc) throws IOException { 1927 RecoverySystem.rebootWipeUserData(mContext, shutdown, reason, force, wipeEuicc); 1928 } 1929 1930 boolean systemPropertiesGetBoolean(String key, boolean def) { 1931 return SystemProperties.getBoolean(key, def); 1932 } 1933 1934 long systemPropertiesGetLong(String key, long def) { 1935 return SystemProperties.getLong(key, def); 1936 } 1937 1938 String systemPropertiesGet(String key, String def) { 1939 return SystemProperties.get(key, def); 1940 } 1941 1942 String systemPropertiesGet(String key) { 1943 return SystemProperties.get(key); 1944 } 1945 1946 void systemPropertiesSet(String key, String value) { 1947 SystemProperties.set(key, value); 1948 } 1949 1950 boolean userManagerIsSplitSystemUser() { 1951 return UserManager.isSplitSystemUser(); 1952 } 1953 1954 String getDevicePolicyFilePathForSystemUser() { 1955 return "/data/system/"; 1956 } 1957 1958 PendingIntent pendingIntentGetActivityAsUser(Context context, int requestCode, 1959 @NonNull Intent intent, int flags, Bundle options, UserHandle user) { 1960 return PendingIntent.getActivityAsUser( 1961 context, requestCode, intent, flags, options, user); 1962 } 1963 1964 void registerContentObserver(Uri uri, boolean notifyForDescendents, 1965 ContentObserver observer, int userHandle) { 1966 mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents, 1967 observer, userHandle); 1968 } 1969 1970 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1971 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1972 name, def, userHandle); 1973 } 1974 1975 String settingsSecureGetStringForUser(String name, int userHandle) { 1976 return Settings.Secure.getStringForUser(mContext.getContentResolver(), name, 1977 userHandle); 1978 } 1979 1980 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1981 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1982 name, value, userHandle); 1983 } 1984 1985 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1986 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1987 name, value, userHandle); 1988 } 1989 1990 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1991 Settings.Global.putStringForUser(mContext.getContentResolver(), 1992 name, value, userHandle); 1993 } 1994 1995 void settingsSecurePutInt(String name, int value) { 1996 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1997 } 1998 1999 int settingsGlobalGetInt(String name, int def) { 2000 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 2001 } 2002 2003 String settingsGlobalGetString(String name) { 2004 return Settings.Global.getString(mContext.getContentResolver(), name); 2005 } 2006 2007 void settingsGlobalPutInt(String name, int value) { 2008 Settings.Global.putInt(mContext.getContentResolver(), name, value); 2009 } 2010 2011 void settingsSecurePutString(String name, String value) { 2012 Settings.Secure.putString(mContext.getContentResolver(), name, value); 2013 } 2014 2015 void settingsGlobalPutString(String name, String value) { 2016 Settings.Global.putString(mContext.getContentResolver(), name, value); 2017 } 2018 2019 void settingsSystemPutString(String name, String value) { 2020 Settings.System.putString(mContext.getContentResolver(), name, value); 2021 } 2022 2023 void securityLogSetLoggingEnabledProperty(boolean enabled) { 2024 SecurityLog.setLoggingEnabledProperty(enabled); 2025 } 2026 2027 boolean securityLogGetLoggingEnabledProperty() { 2028 return SecurityLog.getLoggingEnabledProperty(); 2029 } 2030 2031 boolean securityLogIsLoggingEnabled() { 2032 return SecurityLog.isLoggingEnabled(); 2033 } 2034 2035 KeyChainConnection keyChainBindAsUser(UserHandle user) throws InterruptedException { 2036 return KeyChain.bindAsUser(mContext, user); 2037 } 2038 2039 void postOnSystemServerInitThreadPool(Runnable runnable) { 2040 SystemServerInitThreadPool.get().submit(runnable, LOG_TAG); 2041 } 2042 2043 public TransferOwnershipMetadataManager newTransferOwnershipMetadataManager() { 2044 return new TransferOwnershipMetadataManager(); 2045 } 2046 } 2047 2048 /** 2049 * Instantiates the service. 2050 */ 2051 public DevicePolicyManagerService(Context context) { 2052 this(new Injector(context)); 2053 } 2054 2055 @VisibleForTesting 2056 DevicePolicyManagerService(Injector injector) { 2057 mInjector = injector; 2058 mContext = Preconditions.checkNotNull(injector.mContext); 2059 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 2060 mConstants = DevicePolicyConstants.loadFromString( 2061 mInjector.settingsGlobalGetString(Global.DEVICE_POLICY_CONSTANTS)); 2062 2063 mOwners = Preconditions.checkNotNull(injector.newOwners()); 2064 2065 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 2066 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 2067 mUsageStatsManagerInternal = Preconditions.checkNotNull( 2068 injector.getUsageStatsManagerInternal()); 2069 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 2070 mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager()); 2071 2072 mLocalService = new LocalService(); 2073 mLockPatternUtils = injector.newLockPatternUtils(); 2074 2075 // TODO: why does SecurityLogMonitor need to be created even when mHasFeature == false? 2076 mSecurityLogMonitor = new SecurityLogMonitor(this); 2077 2078 mHasFeature = mInjector.hasFeature(); 2079 mIsWatch = mInjector.getPackageManager() 2080 .hasSystemFeature(PackageManager.FEATURE_WATCH); 2081 mBackgroundHandler = BackgroundThread.getHandler(); 2082 2083 // Needed when mHasFeature == false, because it controls the certificate warning text. 2084 mCertificateMonitor = new CertificateMonitor(this, mInjector, mBackgroundHandler); 2085 2086 mDeviceAdminServiceController = new DeviceAdminServiceController(this, mConstants); 2087 2088 mOverlayPackagesProvider = new OverlayPackagesProvider(mContext); 2089 2090 mTransferOwnershipMetadataManager = mInjector.newTransferOwnershipMetadataManager(); 2091 2092 if (!mHasFeature) { 2093 // Skip the rest of the initialization 2094 return; 2095 } 2096 2097 IntentFilter filter = new IntentFilter(); 2098 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 2099 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 2100 filter.addAction(Intent.ACTION_USER_ADDED); 2101 filter.addAction(Intent.ACTION_USER_REMOVED); 2102 filter.addAction(Intent.ACTION_USER_STARTED); 2103 filter.addAction(Intent.ACTION_USER_STOPPED); 2104 filter.addAction(Intent.ACTION_USER_SWITCHED); 2105 filter.addAction(Intent.ACTION_USER_UNLOCKED); 2106 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 2107 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 2108 filter = new IntentFilter(); 2109 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 2110 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 2111 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 2112 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 2113 filter.addDataScheme("package"); 2114 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 2115 filter = new IntentFilter(); 2116 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 2117 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 2118 2119 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 2120 2121 mSetupContentObserver = new SetupContentObserver(mHandler); 2122 2123 mUserManagerInternal.addUserRestrictionsListener(new RestrictionsListener(mContext)); 2124 } 2125 2126 /** 2127 * Creates and loads the policy data from xml. 2128 * @param userHandle the user for whom to load the policy data 2129 * @return 2130 */ 2131 @NonNull 2132 DevicePolicyData getUserData(int userHandle) { 2133 synchronized (this) { 2134 DevicePolicyData policy = mUserData.get(userHandle); 2135 if (policy == null) { 2136 policy = new DevicePolicyData(userHandle); 2137 mUserData.append(userHandle, policy); 2138 loadSettingsLocked(policy, userHandle); 2139 } 2140 return policy; 2141 } 2142 } 2143 2144 /** 2145 * Creates and loads the policy data from xml for data that is shared between 2146 * various profiles of a user. In contrast to {@link #getUserData(int)} 2147 * it allows access to data of users other than the calling user. 2148 * 2149 * This function should only be used for shared data, e.g. everything regarding 2150 * passwords and should be removed once multiple screen locks are present. 2151 * @param userHandle the user for whom to load the policy data 2152 * @return 2153 */ 2154 DevicePolicyData getUserDataUnchecked(int userHandle) { 2155 long ident = mInjector.binderClearCallingIdentity(); 2156 try { 2157 return getUserData(userHandle); 2158 } finally { 2159 mInjector.binderRestoreCallingIdentity(ident); 2160 } 2161 } 2162 2163 void removeUserData(int userHandle) { 2164 synchronized (this) { 2165 if (userHandle == UserHandle.USER_SYSTEM) { 2166 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 2167 return; 2168 } 2169 mOwners.removeProfileOwner(userHandle); 2170 mOwners.writeProfileOwner(userHandle); 2171 2172 DevicePolicyData policy = mUserData.get(userHandle); 2173 if (policy != null) { 2174 mUserData.remove(userHandle); 2175 } 2176 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2177 DEVICE_POLICIES_XML); 2178 policyFile.delete(); 2179 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 2180 } 2181 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 2182 } 2183 2184 void loadOwners() { 2185 synchronized (this) { 2186 mOwners.load(); 2187 setDeviceOwnerSystemPropertyLocked(); 2188 findOwnerComponentIfNecessaryLocked(); 2189 migrateUserRestrictionsIfNecessaryLocked(); 2190 maybeSetDefaultDeviceOwnerUserRestrictionsLocked(); 2191 2192 // TODO PO may not have a class name either due to b/17652534. Address that too. 2193 2194 updateDeviceOwnerLocked(); 2195 } 2196 } 2197 2198 /** Apply default restrictions that haven't been applied to device owners yet. */ 2199 private void maybeSetDefaultDeviceOwnerUserRestrictionsLocked() { 2200 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 2201 if (deviceOwner != null) { 2202 maybeSetDefaultRestrictionsForAdminLocked(mOwners.getDeviceOwnerUserId(), 2203 deviceOwner, UserRestrictionsUtils.getDefaultEnabledForDeviceOwner()); 2204 } 2205 } 2206 2207 /** Apply default restrictions that haven't been applied to profile owners yet. */ 2208 private void maybeSetDefaultProfileOwnerUserRestrictions() { 2209 synchronized (this) { 2210 for (final int userId : mOwners.getProfileOwnerKeys()) { 2211 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 2212 // The following restrictions used to be applied to managed profiles by different 2213 // means (via Settings or by disabling components). Now they are proper user 2214 // restrictions so we apply them to managed profile owners. Non-managed secondary 2215 // users didn't have those restrictions so we skip them to keep existing behavior. 2216 if (profileOwner == null || !mUserManager.isManagedProfile(userId)) { 2217 continue; 2218 } 2219 maybeSetDefaultRestrictionsForAdminLocked(userId, profileOwner, 2220 UserRestrictionsUtils.getDefaultEnabledForManagedProfiles()); 2221 ensureUnknownSourcesRestrictionForProfileOwnerLocked( 2222 userId, profileOwner, false /* newOwner */); 2223 } 2224 } 2225 } 2226 2227 /** 2228 * Checks whether {@link UserManager#DISALLOW_INSTALL_UNKNOWN_SOURCES} should be added to the 2229 * set of restrictions for this profile owner. 2230 */ 2231 private void ensureUnknownSourcesRestrictionForProfileOwnerLocked(int userId, 2232 ActiveAdmin profileOwner, boolean newOwner) { 2233 if (newOwner || mInjector.settingsSecureGetIntForUser( 2234 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId) != 0) { 2235 profileOwner.ensureUserRestrictions().putBoolean( 2236 UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 2237 saveUserRestrictionsLocked(userId); 2238 mInjector.settingsSecurePutIntForUser( 2239 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId); 2240 } 2241 } 2242 2243 /** 2244 * Apply default restrictions that haven't been applied to a given admin yet. 2245 */ 2246 private void maybeSetDefaultRestrictionsForAdminLocked( 2247 int userId, ActiveAdmin admin, Set<String> defaultRestrictions) { 2248 if (defaultRestrictions.equals(admin.defaultEnabledRestrictionsAlreadySet)) { 2249 return; // The same set of default restrictions has been already applied. 2250 } 2251 Slog.i(LOG_TAG, "New user restrictions need to be set by default for user " + userId); 2252 2253 if (VERBOSE_LOG) { 2254 Slog.d(LOG_TAG,"Default enabled restrictions: " 2255 + defaultRestrictions 2256 + ". Restrictions already enabled: " 2257 + admin.defaultEnabledRestrictionsAlreadySet); 2258 } 2259 2260 final Set<String> restrictionsToSet = new ArraySet<>(defaultRestrictions); 2261 restrictionsToSet.removeAll(admin.defaultEnabledRestrictionsAlreadySet); 2262 if (!restrictionsToSet.isEmpty()) { 2263 for (final String restriction : restrictionsToSet) { 2264 admin.ensureUserRestrictions().putBoolean(restriction, true); 2265 } 2266 admin.defaultEnabledRestrictionsAlreadySet.addAll(restrictionsToSet); 2267 Slog.i(LOG_TAG, "Enabled the following restrictions by default: " + restrictionsToSet); 2268 saveUserRestrictionsLocked(userId); 2269 } 2270 } 2271 2272 private void setDeviceOwnerSystemPropertyLocked() { 2273 final boolean deviceProvisioned = 2274 mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0; 2275 final boolean hasDeviceOwner = mOwners.hasDeviceOwner(); 2276 // If the device is not provisioned and there is currently no device owner, do not set the 2277 // read-only system property yet, since Device owner may still be provisioned. 2278 if (!hasDeviceOwner && !deviceProvisioned) { 2279 return; 2280 } 2281 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 2282 // always false at this point. 2283 if (StorageManager.inCryptKeeperBounce()) { 2284 return; 2285 } 2286 2287 if (!mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT, "").isEmpty()) { 2288 Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 2289 } else { 2290 final String value = Boolean.toString(hasDeviceOwner); 2291 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, value); 2292 Slog.i(LOG_TAG, "Set ro.device_owner property to " + value); 2293 2294 if (hasDeviceOwner && mInjector.securityLogGetLoggingEnabledProperty()) { 2295 mSecurityLogMonitor.start(); 2296 maybePauseDeviceWideLoggingLocked(); 2297 } 2298 } 2299 } 2300 2301 private void findOwnerComponentIfNecessaryLocked() { 2302 if (!mOwners.hasDeviceOwner()) { 2303 return; 2304 } 2305 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 2306 2307 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 2308 return; // Already a full component name. 2309 } 2310 2311 final ComponentName doComponent = findAdminComponentWithPackageLocked( 2312 doComponentName.getPackageName(), 2313 mOwners.getDeviceOwnerUserId()); 2314 if (doComponent == null) { 2315 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 2316 } else { 2317 mOwners.setDeviceOwnerWithRestrictionsMigrated( 2318 doComponent, 2319 mOwners.getDeviceOwnerName(), 2320 mOwners.getDeviceOwnerUserId(), 2321 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 2322 mOwners.writeDeviceOwner(); 2323 if (VERBOSE_LOG) { 2324 Log.v(LOG_TAG, "Device owner component filled in"); 2325 } 2326 } 2327 } 2328 2329 /** 2330 * We didn't use to persist user restrictions for each owners but only persisted in user 2331 * manager. 2332 */ 2333 private void migrateUserRestrictionsIfNecessaryLocked() { 2334 boolean migrated = false; 2335 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 2336 // except for the "system controlled" ones. 2337 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 2338 if (VERBOSE_LOG) { 2339 Log.v(LOG_TAG, "Migrating DO user restrictions"); 2340 } 2341 migrated = true; 2342 2343 // Migrate user 0 restrictions to DO. 2344 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 2345 2346 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 2347 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 2348 2349 // Push DO user restrictions to user manager. 2350 pushUserRestrictions(UserHandle.USER_SYSTEM); 2351 2352 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 2353 } 2354 2355 // Migrate for POs. 2356 2357 // The following restrictions can be set on secondary users by the device owner, so we 2358 // assume they're not from the PO. 2359 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 2360 UserManager.DISALLOW_OUTGOING_CALLS, 2361 UserManager.DISALLOW_SMS); 2362 2363 for (UserInfo ui : mUserManager.getUsers()) { 2364 final int userId = ui.id; 2365 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 2366 if (VERBOSE_LOG) { 2367 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 2368 } 2369 migrated = true; 2370 2371 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 2372 2373 final Set<String> exceptionList = 2374 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 2375 2376 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 2377 exceptionList, /* isDeviceOwner =*/ false); 2378 2379 // Note if a secondary user has no PO but has a DA that disables camera, we 2380 // don't get here and won't push the camera user restriction to UserManager 2381 // here. That's okay because we'll push user restrictions anyway when a user 2382 // starts. But we still do it because we want to let user manager persist 2383 // upon migration. 2384 pushUserRestrictions(userId); 2385 2386 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 2387 } 2388 } 2389 if (VERBOSE_LOG && migrated) { 2390 Log.v(LOG_TAG, "User restrictions migrated."); 2391 } 2392 } 2393 2394 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 2395 Set<String> exceptionList, boolean isDeviceOwner) { 2396 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 2397 user.getIdentifier()); 2398 2399 final Bundle newBaseRestrictions = new Bundle(); 2400 final Bundle newOwnerRestrictions = new Bundle(); 2401 2402 for (String key : origRestrictions.keySet()) { 2403 if (!origRestrictions.getBoolean(key)) { 2404 continue; 2405 } 2406 final boolean canOwnerChange = isDeviceOwner 2407 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 2408 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 2409 2410 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 2411 newBaseRestrictions.putBoolean(key, true); 2412 } else { 2413 newOwnerRestrictions.putBoolean(key, true); 2414 } 2415 } 2416 2417 if (VERBOSE_LOG) { 2418 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 2419 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 2420 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 2421 } 2422 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 2423 newBaseRestrictions); 2424 2425 if (admin != null) { 2426 admin.ensureUserRestrictions().clear(); 2427 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 2428 } else { 2429 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 2430 } 2431 saveSettingsLocked(user.getIdentifier()); 2432 } 2433 2434 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 2435 final DevicePolicyData policy = getUserData(userId); 2436 final int n = policy.mAdminList.size(); 2437 ComponentName found = null; 2438 int nFound = 0; 2439 for (int i = 0; i < n; i++) { 2440 final ActiveAdmin admin = policy.mAdminList.get(i); 2441 if (packageName.equals(admin.info.getPackageName())) { 2442 // Found! 2443 if (nFound == 0) { 2444 found = admin.info.getComponent(); 2445 } 2446 nFound++; 2447 } 2448 } 2449 if (nFound > 1) { 2450 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 2451 } 2452 return found; 2453 } 2454 2455 /** 2456 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 2457 * reminders. Clears alarm if no expirations are configured. 2458 */ 2459 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 2460 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 2461 final long now = System.currentTimeMillis(); 2462 final long timeToExpire = expiration - now; 2463 final long alarmTime; 2464 if (expiration == 0) { 2465 // No expirations are currently configured: Cancel alarm. 2466 alarmTime = 0; 2467 } else if (timeToExpire <= 0) { 2468 // The password has already expired: Repeat every 24 hours. 2469 alarmTime = now + MS_PER_DAY; 2470 } else { 2471 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 2472 // the expiration time. 2473 long alarmInterval = timeToExpire % MS_PER_DAY; 2474 if (alarmInterval == 0) { 2475 alarmInterval = MS_PER_DAY; 2476 } 2477 alarmTime = now + alarmInterval; 2478 } 2479 2480 long token = mInjector.binderClearCallingIdentity(); 2481 try { 2482 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 2483 AlarmManager am = mInjector.getAlarmManager(); 2484 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 2485 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 2486 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 2487 UserHandle.of(affectedUserHandle)); 2488 am.cancel(pi); 2489 if (alarmTime != 0) { 2490 am.set(AlarmManager.RTC, alarmTime, pi); 2491 } 2492 } finally { 2493 mInjector.binderRestoreCallingIdentity(token); 2494 } 2495 } 2496 2497 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 2498 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 2499 if (admin != null 2500 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 2501 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 2502 return admin; 2503 } 2504 return null; 2505 } 2506 2507 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 2508 if (parent) { 2509 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 2510 } 2511 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2512 if (admin != null && parent) { 2513 admin = admin.getParentActiveAdmin(); 2514 } 2515 return admin; 2516 } 2517 2518 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 2519 throws SecurityException { 2520 final int callingUid = mInjector.binderGetCallingUid(); 2521 2522 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 2523 if (result != null) { 2524 return result; 2525 } 2526 2527 if (who != null) { 2528 final int userId = UserHandle.getUserId(callingUid); 2529 final DevicePolicyData policy = getUserData(userId); 2530 ActiveAdmin admin = policy.mAdminMap.get(who); 2531 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2532 throw new SecurityException("Admin " + admin.info.getComponent() 2533 + " does not own the device"); 2534 } 2535 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2536 throw new SecurityException("Admin " + admin.info.getComponent() 2537 + " does not own the profile"); 2538 } 2539 throw new SecurityException("Admin " + admin.info.getComponent() 2540 + " did not specify uses-policy for: " 2541 + admin.info.getTagForPolicy(reqPolicy)); 2542 } else { 2543 throw new SecurityException("No active admin owned by uid " 2544 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 2545 } 2546 } 2547 2548 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 2549 throws SecurityException { 2550 if (parent) { 2551 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 2552 "call APIs on the parent profile"); 2553 } 2554 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 2555 return parent ? admin.getParentActiveAdmin() : admin; 2556 } 2557 /** 2558 * Find the admin for the component and userId bit of the uid, then check 2559 * the admin's uid matches the uid. 2560 */ 2561 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 2562 final int userId = UserHandle.getUserId(uid); 2563 final DevicePolicyData policy = getUserData(userId); 2564 ActiveAdmin admin = policy.mAdminMap.get(who); 2565 if (admin == null) { 2566 throw new SecurityException("No active admin " + who); 2567 } 2568 if (admin.getUid() != uid) { 2569 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2570 } 2571 return admin; 2572 } 2573 2574 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 2575 int uid) { 2576 // Try to find an admin which can use reqPolicy 2577 final int userId = UserHandle.getUserId(uid); 2578 final DevicePolicyData policy = getUserData(userId); 2579 if (who != null) { 2580 ActiveAdmin admin = policy.mAdminMap.get(who); 2581 if (admin == null) { 2582 throw new SecurityException("No active admin " + who); 2583 } 2584 if (admin.getUid() != uid) { 2585 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2586 } 2587 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 2588 return admin; 2589 } 2590 } else { 2591 for (ActiveAdmin admin : policy.mAdminList) { 2592 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 2593 userId)) { 2594 return admin; 2595 } 2596 } 2597 } 2598 2599 return null; 2600 } 2601 2602 @VisibleForTesting 2603 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 2604 int userId) { 2605 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 2606 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 2607 2608 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2609 return ownsDevice; 2610 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2611 // DO always has the PO power. 2612 return ownsDevice || ownsProfile; 2613 } else { 2614 return admin.info.usesPolicy(reqPolicy); 2615 } 2616 } 2617 2618 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 2619 sendAdminCommandLocked(admin, action, null); 2620 } 2621 2622 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 2623 sendAdminCommandLocked(admin, action, null, result); 2624 } 2625 2626 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2627 BroadcastReceiver result) { 2628 sendAdminCommandLocked(admin, action, adminExtras, result, false); 2629 } 2630 2631 /** 2632 * Send an update to one specific admin, get notified when that admin returns a result. 2633 * 2634 * @return whether the broadcast was successfully sent 2635 */ 2636 boolean sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2637 BroadcastReceiver result, boolean inForeground) { 2638 Intent intent = new Intent(action); 2639 intent.setComponent(admin.info.getComponent()); 2640 if (UserManager.isDeviceInDemoMode(mContext)) { 2641 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 2642 } 2643 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 2644 intent.putExtra("expiration", admin.passwordExpirationDate); 2645 } 2646 if (inForeground) { 2647 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 2648 } 2649 if (adminExtras != null) { 2650 intent.putExtras(adminExtras); 2651 } 2652 if (mInjector.getPackageManager().queryBroadcastReceiversAsUser( 2653 intent, 2654 PackageManager.MATCH_DEBUG_TRIAGED_MISSING, 2655 admin.getUserHandle()).isEmpty()) { 2656 return false; 2657 } 2658 if (result != null) { 2659 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 2660 null, result, mHandler, Activity.RESULT_OK, null, null); 2661 } else { 2662 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 2663 } 2664 return true; 2665 } 2666 2667 /** 2668 * Send an update to all admins of a user that enforce a specified policy. 2669 */ 2670 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle, Bundle adminExtras) { 2671 final DevicePolicyData policy = getUserData(userHandle); 2672 final int count = policy.mAdminList.size(); 2673 for (int i = 0; i < count; i++) { 2674 final ActiveAdmin admin = policy.mAdminList.get(i); 2675 if (admin.info.usesPolicy(reqPolicy)) { 2676 sendAdminCommandLocked(admin, action, adminExtras, null); 2677 } 2678 } 2679 } 2680 2681 /** 2682 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2683 * enforce a specified policy. 2684 */ 2685 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2686 int userHandle, Bundle adminExtras) { 2687 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 2688 for (int profileId : profileIds) { 2689 sendAdminCommandLocked(action, reqPolicy, profileId, adminExtras); 2690 } 2691 } 2692 2693 /** 2694 * Sends a broadcast to each profile that share the password unlock with the given user id. 2695 */ 2696 private void sendAdminCommandForLockscreenPoliciesLocked( 2697 String action, int reqPolicy, int userHandle) { 2698 final Bundle extras = new Bundle(); 2699 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 2700 if (isSeparateProfileChallengeEnabled(userHandle)) { 2701 sendAdminCommandLocked(action, reqPolicy, userHandle, extras); 2702 } else { 2703 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle, extras); 2704 } 2705 } 2706 2707 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2708 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2709 DevicePolicyData policy = getUserData(userHandle); 2710 if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) { 2711 policy.mRemovingAdmins.add(adminReceiver); 2712 sendAdminCommandLocked(admin, 2713 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2714 new BroadcastReceiver() { 2715 @Override 2716 public void onReceive(Context context, Intent intent) { 2717 removeAdminArtifacts(adminReceiver, userHandle); 2718 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2719 } 2720 }); 2721 } 2722 } 2723 2724 2725 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2726 boolean throwForMissingPermission) { 2727 if (!mHasFeature) { 2728 return null; 2729 } 2730 enforceFullCrossUsersPermission(userHandle); 2731 ActivityInfo ai = null; 2732 try { 2733 ai = mIPackageManager.getReceiverInfo(adminName, 2734 PackageManager.GET_META_DATA | 2735 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS | 2736 PackageManager.MATCH_DIRECT_BOOT_AWARE | 2737 PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle); 2738 } catch (RemoteException e) { 2739 // shouldn't happen. 2740 } 2741 if (ai == null) { 2742 throw new IllegalArgumentException("Unknown admin: " + adminName); 2743 } 2744 2745 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2746 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2747 + permission.BIND_DEVICE_ADMIN; 2748 Slog.w(LOG_TAG, message); 2749 if (throwForMissingPermission && 2750 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2751 throw new IllegalArgumentException(message); 2752 } 2753 } 2754 2755 try { 2756 return new DeviceAdminInfo(mContext, ai); 2757 } catch (XmlPullParserException | IOException e) { 2758 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2759 e); 2760 return null; 2761 } 2762 } 2763 2764 private File getPolicyFileDirectory(@UserIdInt int userId) { 2765 return userId == UserHandle.USER_SYSTEM 2766 ? new File(mInjector.getDevicePolicyFilePathForSystemUser()) 2767 : mInjector.environmentGetUserSystemDirectory(userId); 2768 } 2769 2770 private JournaledFile makeJournaledFile(@UserIdInt int userId) { 2771 final String base = new File(getPolicyFileDirectory(userId), DEVICE_POLICIES_XML) 2772 .getAbsolutePath(); 2773 if (VERBOSE_LOG) { 2774 Log.v(LOG_TAG, "Opening " + base); 2775 } 2776 return new JournaledFile(new File(base), new File(base + ".tmp")); 2777 } 2778 2779 private void saveSettingsLocked(int userHandle) { 2780 DevicePolicyData policy = getUserData(userHandle); 2781 JournaledFile journal = makeJournaledFile(userHandle); 2782 FileOutputStream stream = null; 2783 try { 2784 stream = new FileOutputStream(journal.chooseForWrite(), false); 2785 XmlSerializer out = new FastXmlSerializer(); 2786 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2787 out.startDocument(null, true); 2788 2789 out.startTag(null, "policies"); 2790 if (policy.mRestrictionsProvider != null) { 2791 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2792 policy.mRestrictionsProvider.flattenToString()); 2793 } 2794 if (policy.mUserSetupComplete) { 2795 out.attribute(null, ATTR_SETUP_COMPLETE, 2796 Boolean.toString(true)); 2797 } 2798 if (policy.mPaired) { 2799 out.attribute(null, ATTR_DEVICE_PAIRED, 2800 Boolean.toString(true)); 2801 } 2802 if (policy.mDeviceProvisioningConfigApplied) { 2803 out.attribute(null, ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED, 2804 Boolean.toString(true)); 2805 } 2806 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2807 out.attribute(null, ATTR_PROVISIONING_STATE, 2808 Integer.toString(policy.mUserProvisioningState)); 2809 } 2810 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2811 out.attribute(null, ATTR_PERMISSION_POLICY, 2812 Integer.toString(policy.mPermissionPolicy)); 2813 } 2814 2815 // Serialize delegations. 2816 for (int i = 0; i < policy.mDelegationMap.size(); ++i) { 2817 final String delegatePackage = policy.mDelegationMap.keyAt(i); 2818 final List<String> scopes = policy.mDelegationMap.valueAt(i); 2819 2820 // Every "delegation" tag serializes the information of one delegate-scope pair. 2821 for (String scope : scopes) { 2822 out.startTag(null, "delegation"); 2823 out.attribute(null, "delegatePackage", delegatePackage); 2824 out.attribute(null, "scope", scope); 2825 out.endTag(null, "delegation"); 2826 } 2827 } 2828 2829 final int N = policy.mAdminList.size(); 2830 for (int i=0; i<N; i++) { 2831 ActiveAdmin ap = policy.mAdminList.get(i); 2832 if (ap != null) { 2833 out.startTag(null, "admin"); 2834 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2835 ap.writeToXml(out); 2836 out.endTag(null, "admin"); 2837 } 2838 } 2839 2840 if (policy.mPasswordOwner >= 0) { 2841 out.startTag(null, "password-owner"); 2842 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2843 out.endTag(null, "password-owner"); 2844 } 2845 2846 if (policy.mFailedPasswordAttempts != 0) { 2847 out.startTag(null, "failed-password-attempts"); 2848 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2849 out.endTag(null, "failed-password-attempts"); 2850 } 2851 2852 // For FDE devices only, we save this flag so we can report on password sufficiency 2853 // before the user enters their password for the first time after a reboot. For 2854 // security reasons, we don't want to store the full set of active password metrics. 2855 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 2856 out.startTag(null, TAG_PASSWORD_VALIDITY); 2857 out.attribute(null, ATTR_VALUE, 2858 Boolean.toString(policy.mPasswordValidAtLastCheckpoint)); 2859 out.endTag(null, TAG_PASSWORD_VALIDITY); 2860 } 2861 2862 for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) { 2863 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2864 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i)); 2865 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2866 } 2867 2868 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2869 String component = policy.mLockTaskPackages.get(i); 2870 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2871 out.attribute(null, "name", component); 2872 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2873 } 2874 2875 if (policy.mLockTaskFeatures != DevicePolicyManager.LOCK_TASK_FEATURE_NONE) { 2876 out.startTag(null, TAG_LOCK_TASK_FEATURES); 2877 out.attribute(null, ATTR_VALUE, Integer.toString(policy.mLockTaskFeatures)); 2878 out.endTag(null, TAG_LOCK_TASK_FEATURES); 2879 } 2880 2881 if (policy.mStatusBarDisabled) { 2882 out.startTag(null, TAG_STATUS_BAR); 2883 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2884 out.endTag(null, TAG_STATUS_BAR); 2885 } 2886 2887 if (policy.doNotAskCredentialsOnBoot) { 2888 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2889 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2890 } 2891 2892 for (String id : policy.mAffiliationIds) { 2893 out.startTag(null, TAG_AFFILIATION_ID); 2894 out.attribute(null, ATTR_ID, id); 2895 out.endTag(null, TAG_AFFILIATION_ID); 2896 } 2897 2898 if (policy.mLastSecurityLogRetrievalTime >= 0) { 2899 out.startTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2900 out.attribute(null, ATTR_VALUE, 2901 Long.toString(policy.mLastSecurityLogRetrievalTime)); 2902 out.endTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2903 } 2904 2905 if (policy.mLastBugReportRequestTime >= 0) { 2906 out.startTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2907 out.attribute(null, ATTR_VALUE, 2908 Long.toString(policy.mLastBugReportRequestTime)); 2909 out.endTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2910 } 2911 2912 if (policy.mLastNetworkLogsRetrievalTime >= 0) { 2913 out.startTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2914 out.attribute(null, ATTR_VALUE, 2915 Long.toString(policy.mLastNetworkLogsRetrievalTime)); 2916 out.endTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2917 } 2918 2919 if (policy.mAdminBroadcastPending) { 2920 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2921 out.attribute(null, ATTR_VALUE, 2922 Boolean.toString(policy.mAdminBroadcastPending)); 2923 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2924 } 2925 2926 if (policy.mInitBundle != null) { 2927 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 2928 policy.mInitBundle.saveToXml(out); 2929 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 2930 } 2931 2932 if (policy.mPasswordTokenHandle != 0) { 2933 out.startTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2934 out.attribute(null, ATTR_VALUE, 2935 Long.toString(policy.mPasswordTokenHandle)); 2936 out.endTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2937 } 2938 2939 if (policy.mCurrentInputMethodSet) { 2940 out.startTag(null, TAG_CURRENT_INPUT_METHOD_SET); 2941 out.endTag(null, TAG_CURRENT_INPUT_METHOD_SET); 2942 } 2943 2944 if (!policy.mPrintingEnabled) { 2945 out.startTag(null, TAG_PRINTING_ENABLED); 2946 out.attribute(null, ATTR_VALUE, Boolean.toString(policy.mPrintingEnabled)); 2947 out.endTag(null, TAG_PRINTING_ENABLED); 2948 } 2949 2950 for (final String cert : policy.mOwnerInstalledCaCerts) { 2951 out.startTag(null, TAG_OWNER_INSTALLED_CA_CERT); 2952 out.attribute(null, ATTR_ALIAS, cert); 2953 out.endTag(null, TAG_OWNER_INSTALLED_CA_CERT); 2954 } 2955 2956 out.endTag(null, "policies"); 2957 2958 out.endDocument(); 2959 stream.flush(); 2960 FileUtils.sync(stream); 2961 stream.close(); 2962 journal.commit(); 2963 sendChangedNotification(userHandle); 2964 } catch (XmlPullParserException | IOException e) { 2965 Slog.w(LOG_TAG, "failed writing file", e); 2966 try { 2967 if (stream != null) { 2968 stream.close(); 2969 } 2970 } catch (IOException ex) { 2971 // Ignore 2972 } 2973 journal.rollback(); 2974 } 2975 } 2976 2977 private void sendChangedNotification(int userHandle) { 2978 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 2979 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2980 long ident = mInjector.binderClearCallingIdentity(); 2981 try { 2982 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 2983 } finally { 2984 mInjector.binderRestoreCallingIdentity(ident); 2985 } 2986 } 2987 2988 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 2989 JournaledFile journal = makeJournaledFile(userHandle); 2990 FileInputStream stream = null; 2991 File file = journal.chooseForRead(); 2992 boolean needsRewrite = false; 2993 try { 2994 stream = new FileInputStream(file); 2995 XmlPullParser parser = Xml.newPullParser(); 2996 parser.setInput(stream, StandardCharsets.UTF_8.name()); 2997 2998 int type; 2999 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 3000 && type != XmlPullParser.START_TAG) { 3001 } 3002 String tag = parser.getName(); 3003 if (!"policies".equals(tag)) { 3004 throw new XmlPullParserException( 3005 "Settings do not start with policies tag: found " + tag); 3006 } 3007 3008 // Extract the permission provider component name if available 3009 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 3010 if (permissionProvider != null) { 3011 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 3012 } 3013 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 3014 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 3015 policy.mUserSetupComplete = true; 3016 } 3017 String paired = parser.getAttributeValue(null, ATTR_DEVICE_PAIRED); 3018 if (paired != null && Boolean.toString(true).equals(paired)) { 3019 policy.mPaired = true; 3020 } 3021 String deviceProvisioningConfigApplied = parser.getAttributeValue(null, 3022 ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED); 3023 if (deviceProvisioningConfigApplied != null 3024 && Boolean.toString(true).equals(deviceProvisioningConfigApplied)) { 3025 policy.mDeviceProvisioningConfigApplied = true; 3026 } 3027 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 3028 if (!TextUtils.isEmpty(provisioningState)) { 3029 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 3030 } 3031 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 3032 if (!TextUtils.isEmpty(permissionPolicy)) { 3033 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 3034 } 3035 // Check for delegation compatibility with pre-O. 3036 // TODO(edmanp) remove in P. 3037 { 3038 final String certDelegate = parser.getAttributeValue(null, 3039 ATTR_DELEGATED_CERT_INSTALLER); 3040 if (certDelegate != null) { 3041 List<String> scopes = policy.mDelegationMap.get(certDelegate); 3042 if (scopes == null) { 3043 scopes = new ArrayList<>(); 3044 policy.mDelegationMap.put(certDelegate, scopes); 3045 } 3046 if (!scopes.contains(DELEGATION_CERT_INSTALL)) { 3047 scopes.add(DELEGATION_CERT_INSTALL); 3048 needsRewrite = true; 3049 } 3050 } 3051 final String appRestrictionsDelegate = parser.getAttributeValue(null, 3052 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 3053 if (appRestrictionsDelegate != null) { 3054 List<String> scopes = policy.mDelegationMap.get(appRestrictionsDelegate); 3055 if (scopes == null) { 3056 scopes = new ArrayList<>(); 3057 policy.mDelegationMap.put(appRestrictionsDelegate, scopes); 3058 } 3059 if (!scopes.contains(DELEGATION_APP_RESTRICTIONS)) { 3060 scopes.add(DELEGATION_APP_RESTRICTIONS); 3061 needsRewrite = true; 3062 } 3063 } 3064 } 3065 3066 type = parser.next(); 3067 int outerDepth = parser.getDepth(); 3068 policy.mLockTaskPackages.clear(); 3069 policy.mAdminList.clear(); 3070 policy.mAdminMap.clear(); 3071 policy.mAffiliationIds.clear(); 3072 policy.mOwnerInstalledCaCerts.clear(); 3073 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 3074 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 3075 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 3076 continue; 3077 } 3078 tag = parser.getName(); 3079 if ("admin".equals(tag)) { 3080 String name = parser.getAttributeValue(null, "name"); 3081 try { 3082 DeviceAdminInfo dai = findAdmin( 3083 ComponentName.unflattenFromString(name), userHandle, 3084 /* throwForMissingPermission= */ false); 3085 if (VERBOSE_LOG 3086 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 3087 != userHandle)) { 3088 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 3089 + dai.getActivityInfo().applicationInfo.uid + " for user " 3090 + userHandle); 3091 } 3092 if (dai != null) { 3093 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 3094 ap.readFromXml(parser); 3095 policy.mAdminMap.put(ap.info.getComponent(), ap); 3096 } 3097 } catch (RuntimeException e) { 3098 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 3099 } 3100 } else if ("delegation".equals(tag)) { 3101 // Parse delegation info. 3102 final String delegatePackage = parser.getAttributeValue(null, 3103 "delegatePackage"); 3104 final String scope = parser.getAttributeValue(null, "scope"); 3105 3106 // Get a reference to the scopes list for the delegatePackage. 3107 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 3108 // Or make a new list if none was found. 3109 if (scopes == null) { 3110 scopes = new ArrayList<>(); 3111 policy.mDelegationMap.put(delegatePackage, scopes); 3112 } 3113 // Add the new scope to the list of delegatePackage if it's not already there. 3114 if (!scopes.contains(scope)) { 3115 scopes.add(scope); 3116 } 3117 } else if ("failed-password-attempts".equals(tag)) { 3118 policy.mFailedPasswordAttempts = Integer.parseInt( 3119 parser.getAttributeValue(null, "value")); 3120 } else if ("password-owner".equals(tag)) { 3121 policy.mPasswordOwner = Integer.parseInt( 3122 parser.getAttributeValue(null, "value")); 3123 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) { 3124 policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME)); 3125 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 3126 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 3127 } else if (TAG_LOCK_TASK_FEATURES.equals(tag)) { 3128 policy.mLockTaskFeatures = Integer.parseInt( 3129 parser.getAttributeValue(null, ATTR_VALUE)); 3130 } else if (TAG_STATUS_BAR.equals(tag)) { 3131 policy.mStatusBarDisabled = Boolean.parseBoolean( 3132 parser.getAttributeValue(null, ATTR_DISABLED)); 3133 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 3134 policy.doNotAskCredentialsOnBoot = true; 3135 } else if (TAG_AFFILIATION_ID.equals(tag)) { 3136 policy.mAffiliationIds.add(parser.getAttributeValue(null, ATTR_ID)); 3137 } else if (TAG_LAST_SECURITY_LOG_RETRIEVAL.equals(tag)) { 3138 policy.mLastSecurityLogRetrievalTime = Long.parseLong( 3139 parser.getAttributeValue(null, ATTR_VALUE)); 3140 } else if (TAG_LAST_BUG_REPORT_REQUEST.equals(tag)) { 3141 policy.mLastBugReportRequestTime = Long.parseLong( 3142 parser.getAttributeValue(null, ATTR_VALUE)); 3143 } else if (TAG_LAST_NETWORK_LOG_RETRIEVAL.equals(tag)) { 3144 policy.mLastNetworkLogsRetrievalTime = Long.parseLong( 3145 parser.getAttributeValue(null, ATTR_VALUE)); 3146 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 3147 String pending = parser.getAttributeValue(null, ATTR_VALUE); 3148 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 3149 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 3150 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 3151 } else if ("active-password".equals(tag)) { 3152 // Remove password metrics from saved settings, as we no longer wish to store 3153 // these on disk 3154 needsRewrite = true; 3155 } else if (TAG_PASSWORD_VALIDITY.equals(tag)) { 3156 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 3157 // This flag is only used for FDE devices 3158 policy.mPasswordValidAtLastCheckpoint = Boolean.parseBoolean( 3159 parser.getAttributeValue(null, ATTR_VALUE)); 3160 } 3161 } else if (TAG_PASSWORD_TOKEN_HANDLE.equals(tag)) { 3162 policy.mPasswordTokenHandle = Long.parseLong( 3163 parser.getAttributeValue(null, ATTR_VALUE)); 3164 } else if (TAG_CURRENT_INPUT_METHOD_SET.equals(tag)) { 3165 policy.mCurrentInputMethodSet = true; 3166 } else if (TAG_OWNER_INSTALLED_CA_CERT.equals(tag)) { 3167 policy.mOwnerInstalledCaCerts.add(parser.getAttributeValue(null, ATTR_ALIAS)); 3168 } else if (TAG_PRINTING_ENABLED.equals(tag)) { 3169 String enabled = parser.getAttributeValue(null, ATTR_VALUE); 3170 policy.mPrintingEnabled = Boolean.toString(true).equals(enabled); 3171 } else { 3172 Slog.w(LOG_TAG, "Unknown tag: " + tag); 3173 XmlUtils.skipCurrentTag(parser); 3174 } 3175 } 3176 } catch (FileNotFoundException e) { 3177 // Don't be noisy, this is normal if we haven't defined any policies. 3178 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 3179 | IndexOutOfBoundsException e) { 3180 Slog.w(LOG_TAG, "failed parsing " + file, e); 3181 } 3182 try { 3183 if (stream != null) { 3184 stream.close(); 3185 } 3186 } catch (IOException e) { 3187 // Ignore 3188 } 3189 3190 // Generate a list of admins from the admin map 3191 policy.mAdminList.addAll(policy.mAdminMap.values()); 3192 3193 // Might need to upgrade the file by rewriting it 3194 if (needsRewrite) { 3195 saveSettingsLocked(userHandle); 3196 } 3197 3198 validatePasswordOwnerLocked(policy); 3199 updateMaximumTimeToLockLocked(userHandle); 3200 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 3201 updateLockTaskFeaturesLocked(policy.mLockTaskFeatures, userHandle); 3202 if (policy.mStatusBarDisabled) { 3203 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 3204 } 3205 } 3206 3207 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 3208 long ident = mInjector.binderClearCallingIdentity(); 3209 try { 3210 mInjector.getIActivityManager() 3211 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 3212 } catch (RemoteException e) { 3213 // Not gonna happen. 3214 } finally { 3215 mInjector.binderRestoreCallingIdentity(ident); 3216 } 3217 } 3218 3219 private void updateLockTaskFeaturesLocked(int flags, int userId) { 3220 long ident = mInjector.binderClearCallingIdentity(); 3221 try { 3222 mInjector.getIActivityManager() 3223 .updateLockTaskFeatures(userId, flags); 3224 } catch (RemoteException e) { 3225 // Not gonna happen. 3226 } finally { 3227 mInjector.binderRestoreCallingIdentity(ident); 3228 } 3229 } 3230 3231 private void updateDeviceOwnerLocked() { 3232 long ident = mInjector.binderClearCallingIdentity(); 3233 try { 3234 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 3235 // user id and also protect all other DAs too. 3236 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 3237 if (deviceOwnerComponent != null) { 3238 mInjector.getIActivityManager() 3239 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 3240 } 3241 } catch (RemoteException e) { 3242 // Not gonna happen. 3243 } finally { 3244 mInjector.binderRestoreCallingIdentity(ident); 3245 } 3246 } 3247 3248 static void validateQualityConstant(int quality) { 3249 switch (quality) { 3250 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 3251 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 3252 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 3253 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 3254 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 3255 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 3256 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 3257 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 3258 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 3259 return; 3260 } 3261 throw new IllegalArgumentException("Invalid quality constant: 0x" 3262 + Integer.toHexString(quality)); 3263 } 3264 3265 void validatePasswordOwnerLocked(DevicePolicyData policy) { 3266 if (policy.mPasswordOwner >= 0) { 3267 boolean haveOwner = false; 3268 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 3269 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 3270 haveOwner = true; 3271 break; 3272 } 3273 } 3274 if (!haveOwner) { 3275 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 3276 + " no longer active; disabling"); 3277 policy.mPasswordOwner = -1; 3278 } 3279 } 3280 } 3281 3282 @VisibleForTesting 3283 @Override 3284 void systemReady(int phase) { 3285 if (!mHasFeature) { 3286 return; 3287 } 3288 switch (phase) { 3289 case SystemService.PHASE_LOCK_SETTINGS_READY: 3290 onLockSettingsReady(); 3291 loadAdminDataAsync(); 3292 break; 3293 case SystemService.PHASE_BOOT_COMPLETED: 3294 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 3295 break; 3296 } 3297 } 3298 3299 private void onLockSettingsReady() { 3300 getUserData(UserHandle.USER_SYSTEM); 3301 loadOwners(); 3302 cleanUpOldUsers(); 3303 maybeSetDefaultProfileOwnerUserRestrictions(); 3304 handleStartUser(UserHandle.USER_SYSTEM); 3305 3306 // Register an observer for watching for user setup complete and settings changes. 3307 mSetupContentObserver.register(); 3308 // Initialize the user setup state, to handle the upgrade case. 3309 updateUserSetupCompleteAndPaired(); 3310 3311 List<String> packageList; 3312 synchronized (this) { 3313 packageList = getKeepUninstalledPackagesLocked(); 3314 } 3315 if (packageList != null) { 3316 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 3317 } 3318 3319 synchronized (this) { 3320 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 3321 if (deviceOwner != null) { 3322 // Push the force-ephemeral-users policy to the user manager. 3323 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 3324 3325 // Update user switcher message to activity manager. 3326 ActivityManagerInternal activityManagerInternal = 3327 mInjector.getActivityManagerInternal(); 3328 activityManagerInternal.setSwitchingFromSystemUserMessage( 3329 deviceOwner.startUserSessionMessage); 3330 activityManagerInternal.setSwitchingToSystemUserMessage( 3331 deviceOwner.endUserSessionMessage); 3332 } 3333 3334 revertTransferOwnershipIfNecessaryLocked(); 3335 } 3336 } 3337 3338 private void revertTransferOwnershipIfNecessaryLocked() { 3339 if (!mTransferOwnershipMetadataManager.metadataFileExists()) { 3340 return; 3341 } 3342 Slog.e(LOG_TAG, "Owner transfer metadata file exists! Reverting transfer."); 3343 final TransferOwnershipMetadataManager.Metadata metadata = 3344 mTransferOwnershipMetadataManager.loadMetadataFile(); 3345 // Revert transfer 3346 if (metadata.adminType.equals(ADMIN_TYPE_PROFILE_OWNER)) { 3347 transferProfileOwnershipLocked(metadata.targetComponent, metadata.sourceComponent, 3348 metadata.userId); 3349 deleteTransferOwnershipMetadataFileLocked(); 3350 deleteTransferOwnershipBundleLocked(metadata.userId); 3351 } else if (metadata.adminType.equals(ADMIN_TYPE_DEVICE_OWNER)) { 3352 transferDeviceOwnershipLocked(metadata.targetComponent, metadata.sourceComponent, 3353 metadata.userId); 3354 deleteTransferOwnershipMetadataFileLocked(); 3355 deleteTransferOwnershipBundleLocked(metadata.userId); 3356 } 3357 } 3358 3359 private void ensureDeviceOwnerUserStarted() { 3360 final int userId; 3361 synchronized (this) { 3362 if (!mOwners.hasDeviceOwner()) { 3363 return; 3364 } 3365 userId = mOwners.getDeviceOwnerUserId(); 3366 } 3367 if (VERBOSE_LOG) { 3368 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 3369 } 3370 if (userId != UserHandle.USER_SYSTEM) { 3371 try { 3372 mInjector.getIActivityManager().startUserInBackground(userId); 3373 3374 // STOPSHIP Prevent the DO user from being killed. 3375 3376 } catch (RemoteException e) { 3377 Slog.w(LOG_TAG, "Exception starting user", e); 3378 } 3379 } 3380 } 3381 3382 @Override 3383 void handleStartUser(int userId) { 3384 updateScreenCaptureDisabledInWindowManager(userId, 3385 getScreenCaptureDisabled(null, userId)); 3386 pushUserRestrictions(userId); 3387 3388 startOwnerService(userId, "start-user"); 3389 } 3390 3391 @Override 3392 void handleUnlockUser(int userId) { 3393 startOwnerService(userId, "unlock-user"); 3394 } 3395 3396 @Override 3397 void handleStopUser(int userId) { 3398 stopOwnerService(userId, "stop-user"); 3399 } 3400 3401 private void startOwnerService(int userId, String actionForLog) { 3402 final ComponentName owner = getOwnerComponent(userId); 3403 if (owner != null) { 3404 mDeviceAdminServiceController.startServiceForOwner( 3405 owner.getPackageName(), userId, actionForLog); 3406 } 3407 } 3408 3409 private void stopOwnerService(int userId, String actionForLog) { 3410 mDeviceAdminServiceController.stopServiceForOwner(userId, actionForLog); 3411 } 3412 3413 private void cleanUpOldUsers() { 3414 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 3415 // before reboot 3416 Set<Integer> usersWithProfileOwners; 3417 Set<Integer> usersWithData; 3418 synchronized(this) { 3419 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 3420 usersWithData = new ArraySet<>(); 3421 for (int i = 0; i < mUserData.size(); i++) { 3422 usersWithData.add(mUserData.keyAt(i)); 3423 } 3424 } 3425 List<UserInfo> allUsers = mUserManager.getUsers(); 3426 3427 Set<Integer> deletedUsers = new ArraySet<>(); 3428 deletedUsers.addAll(usersWithProfileOwners); 3429 deletedUsers.addAll(usersWithData); 3430 for (UserInfo userInfo : allUsers) { 3431 deletedUsers.remove(userInfo.id); 3432 } 3433 for (Integer userId : deletedUsers) { 3434 removeUserData(userId); 3435 } 3436 } 3437 3438 private void handlePasswordExpirationNotification(int userHandle) { 3439 final Bundle adminExtras = new Bundle(); 3440 adminExtras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 3441 3442 synchronized (this) { 3443 final long now = System.currentTimeMillis(); 3444 3445 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 3446 userHandle, /* parent */ false); 3447 final int N = admins.size(); 3448 for (int i = 0; i < N; i++) { 3449 ActiveAdmin admin = admins.get(i); 3450 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 3451 && admin.passwordExpirationTimeout > 0L 3452 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 3453 && admin.passwordExpirationDate > 0L) { 3454 sendAdminCommandLocked(admin, 3455 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING, adminExtras, null); 3456 } 3457 } 3458 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 3459 } 3460 } 3461 3462 /** 3463 * Clean up internal state when the set of installed trusted CA certificates changes. 3464 * 3465 * @param userHandle user to check for. This must be a real user and not, for example, 3466 * {@link UserHandle#ALL}. 3467 * @param installedCertificates the full set of certificate authorities currently installed for 3468 * {@param userHandle}. After calling this function, {@code mAcceptedCaCertificates} will 3469 * correspond to some subset of this. 3470 */ 3471 protected void onInstalledCertificatesChanged(final UserHandle userHandle, 3472 final @NonNull Collection<String> installedCertificates) { 3473 if (!mHasFeature) { 3474 return; 3475 } 3476 enforceManageUsers(); 3477 3478 synchronized (this) { 3479 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 3480 3481 boolean changed = false; 3482 changed |= policy.mAcceptedCaCertificates.retainAll(installedCertificates); 3483 changed |= policy.mOwnerInstalledCaCerts.retainAll(installedCertificates); 3484 if (changed) { 3485 saveSettingsLocked(userHandle.getIdentifier()); 3486 } 3487 } 3488 } 3489 3490 /** 3491 * Internal method used by {@link CertificateMonitor}. 3492 */ 3493 protected Set<String> getAcceptedCaCertificates(final UserHandle userHandle) { 3494 if (!mHasFeature) { 3495 return Collections.<String> emptySet(); 3496 } 3497 synchronized (this) { 3498 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 3499 return policy.mAcceptedCaCertificates; 3500 } 3501 } 3502 3503 /** 3504 * @param adminReceiver The admin to add 3505 * @param refreshing true = update an active admin, no error 3506 */ 3507 @Override 3508 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 3509 if (!mHasFeature) { 3510 return; 3511 } 3512 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 3513 } 3514 3515 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 3516 Bundle onEnableData) { 3517 mContext.enforceCallingOrSelfPermission( 3518 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3519 enforceFullCrossUsersPermission(userHandle); 3520 3521 DevicePolicyData policy = getUserData(userHandle); 3522 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 3523 /* throwForMissingPermission= */ true); 3524 synchronized (this) { 3525 checkActiveAdminPrecondition(adminReceiver, info, policy); 3526 long ident = mInjector.binderClearCallingIdentity(); 3527 try { 3528 final ActiveAdmin existingAdmin 3529 = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3530 if (!refreshing && existingAdmin != null) { 3531 throw new IllegalArgumentException("Admin is already added"); 3532 } 3533 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 3534 newAdmin.testOnlyAdmin = 3535 (existingAdmin != null) ? existingAdmin.testOnlyAdmin 3536 : isPackageTestOnly(adminReceiver.getPackageName(), userHandle); 3537 policy.mAdminMap.put(adminReceiver, newAdmin); 3538 int replaceIndex = -1; 3539 final int N = policy.mAdminList.size(); 3540 for (int i=0; i < N; i++) { 3541 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 3542 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 3543 replaceIndex = i; 3544 break; 3545 } 3546 } 3547 if (replaceIndex == -1) { 3548 policy.mAdminList.add(newAdmin); 3549 enableIfNecessary(info.getPackageName(), userHandle); 3550 mUsageStatsManagerInternal.onActiveAdminAdded( 3551 adminReceiver.getPackageName(), userHandle); 3552 } else { 3553 policy.mAdminList.set(replaceIndex, newAdmin); 3554 } 3555 saveSettingsLocked(userHandle); 3556 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 3557 onEnableData, null); 3558 } finally { 3559 mInjector.binderRestoreCallingIdentity(ident); 3560 } 3561 } 3562 } 3563 3564 private void loadAdminDataAsync() { 3565 mInjector.postOnSystemServerInitThreadPool(() -> { 3566 pushActiveAdminPackages(); 3567 mUsageStatsManagerInternal.onAdminDataAvailable(); 3568 pushAllMeteredRestrictedPackages(); 3569 mInjector.getNetworkPolicyManagerInternal().onAdminDataAvailable(); 3570 }); 3571 } 3572 3573 private void pushActiveAdminPackages() { 3574 synchronized (this) { 3575 final List<UserInfo> users = mUserManager.getUsers(); 3576 for (int i = users.size() - 1; i >= 0; --i) { 3577 final int userId = users.get(i).id; 3578 mUsageStatsManagerInternal.setActiveAdminApps( 3579 getActiveAdminPackagesLocked(userId), userId); 3580 } 3581 } 3582 } 3583 3584 private void pushAllMeteredRestrictedPackages() { 3585 synchronized (this) { 3586 final List<UserInfo> users = mUserManager.getUsers(); 3587 for (int i = users.size() - 1; i >= 0; --i) { 3588 final int userId = users.get(i).id; 3589 mInjector.getNetworkPolicyManagerInternal().setMeteredRestrictedPackagesAsync( 3590 getMeteredDisabledPackagesLocked(userId), userId); 3591 } 3592 } 3593 } 3594 3595 private void pushActiveAdminPackagesLocked(int userId) { 3596 mUsageStatsManagerInternal.setActiveAdminApps( 3597 getActiveAdminPackagesLocked(userId), userId); 3598 } 3599 3600 private Set<String> getActiveAdminPackagesLocked(int userId) { 3601 final DevicePolicyData policy = getUserData(userId); 3602 Set<String> adminPkgs = null; 3603 for (int i = policy.mAdminList.size() - 1; i >= 0; --i) { 3604 final String pkgName = policy.mAdminList.get(i).info.getPackageName(); 3605 if (adminPkgs == null) { 3606 adminPkgs = new ArraySet<>(); 3607 } 3608 adminPkgs.add(pkgName); 3609 } 3610 return adminPkgs; 3611 } 3612 3613 private void transferActiveAdminUncheckedLocked(ComponentName incomingReceiver, 3614 ComponentName outgoingReceiver, int userHandle) { 3615 final DevicePolicyData policy = getUserData(userHandle); 3616 if (!policy.mAdminMap.containsKey(outgoingReceiver) 3617 && policy.mAdminMap.containsKey(incomingReceiver)) { 3618 // Nothing to transfer - the incoming receiver is already the active admin. 3619 return; 3620 } 3621 final DeviceAdminInfo incomingDeviceInfo = findAdmin(incomingReceiver, userHandle, 3622 /* throwForMissingPermission= */ true); 3623 final ActiveAdmin adminToTransfer = policy.mAdminMap.get(outgoingReceiver); 3624 final int oldAdminUid = adminToTransfer.getUid(); 3625 3626 adminToTransfer.transfer(incomingDeviceInfo); 3627 policy.mAdminMap.remove(outgoingReceiver); 3628 policy.mAdminMap.put(incomingReceiver, adminToTransfer); 3629 if (policy.mPasswordOwner == oldAdminUid) { 3630 policy.mPasswordOwner = adminToTransfer.getUid(); 3631 } 3632 3633 saveSettingsLocked(userHandle); 3634 sendAdminCommandLocked(adminToTransfer, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 3635 null, null); 3636 } 3637 3638 private void checkActiveAdminPrecondition(ComponentName adminReceiver, DeviceAdminInfo info, 3639 DevicePolicyData policy) { 3640 if (info == null) { 3641 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 3642 } 3643 if (!info.getActivityInfo().applicationInfo.isInternal()) { 3644 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 3645 + adminReceiver); 3646 } 3647 if (info.getActivityInfo().applicationInfo.isInstantApp()) { 3648 throw new IllegalArgumentException("Instant apps cannot be device admins: " 3649 + adminReceiver); 3650 } 3651 if (policy.mRemovingAdmins.contains(adminReceiver)) { 3652 throw new IllegalArgumentException( 3653 "Trying to set an admin which is being removed"); 3654 } 3655 } 3656 3657 @Override 3658 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 3659 if (!mHasFeature) { 3660 return false; 3661 } 3662 enforceFullCrossUsersPermission(userHandle); 3663 synchronized (this) { 3664 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 3665 } 3666 } 3667 3668 @Override 3669 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 3670 if (!mHasFeature) { 3671 return false; 3672 } 3673 enforceFullCrossUsersPermission(userHandle); 3674 synchronized (this) { 3675 DevicePolicyData policyData = getUserData(userHandle); 3676 return policyData.mRemovingAdmins.contains(adminReceiver); 3677 } 3678 } 3679 3680 @Override 3681 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 3682 if (!mHasFeature) { 3683 return false; 3684 } 3685 enforceFullCrossUsersPermission(userHandle); 3686 synchronized (this) { 3687 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3688 if (administrator == null) { 3689 throw new SecurityException("No active admin " + adminReceiver); 3690 } 3691 return administrator.info.usesPolicy(policyId); 3692 } 3693 } 3694 3695 @Override 3696 @SuppressWarnings("unchecked") 3697 public List<ComponentName> getActiveAdmins(int userHandle) { 3698 if (!mHasFeature) { 3699 return Collections.EMPTY_LIST; 3700 } 3701 3702 enforceFullCrossUsersPermission(userHandle); 3703 synchronized (this) { 3704 DevicePolicyData policy = getUserData(userHandle); 3705 final int N = policy.mAdminList.size(); 3706 if (N <= 0) { 3707 return null; 3708 } 3709 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 3710 for (int i=0; i<N; i++) { 3711 res.add(policy.mAdminList.get(i).info.getComponent()); 3712 } 3713 return res; 3714 } 3715 } 3716 3717 @Override 3718 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 3719 if (!mHasFeature) { 3720 return false; 3721 } 3722 enforceFullCrossUsersPermission(userHandle); 3723 synchronized (this) { 3724 DevicePolicyData policy = getUserData(userHandle); 3725 final int N = policy.mAdminList.size(); 3726 for (int i=0; i<N; i++) { 3727 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 3728 return true; 3729 } 3730 } 3731 return false; 3732 } 3733 } 3734 3735 @Override 3736 public void forceRemoveActiveAdmin(ComponentName adminReceiver, int userHandle) { 3737 if (!mHasFeature) { 3738 return; 3739 } 3740 Preconditions.checkNotNull(adminReceiver, "ComponentName is null"); 3741 enforceShell("forceRemoveActiveAdmin"); 3742 long ident = mInjector.binderClearCallingIdentity(); 3743 try { 3744 synchronized (this) { 3745 if (!isAdminTestOnlyLocked(adminReceiver, userHandle)) { 3746 throw new SecurityException("Attempt to remove non-test admin " 3747 + adminReceiver + " " + userHandle); 3748 } 3749 3750 // If admin is a device or profile owner tidy that up first. 3751 if (isDeviceOwner(adminReceiver, userHandle)) { 3752 clearDeviceOwnerLocked(getDeviceOwnerAdminLocked(), userHandle); 3753 } 3754 if (isProfileOwner(adminReceiver, userHandle)) { 3755 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, 3756 userHandle, /* parent */ false); 3757 clearProfileOwnerLocked(admin, userHandle); 3758 } 3759 } 3760 // Remove the admin skipping sending the broadcast. 3761 removeAdminArtifacts(adminReceiver, userHandle); 3762 Slog.i(LOG_TAG, "Admin " + adminReceiver + " removed from user " + userHandle); 3763 } finally { 3764 mInjector.binderRestoreCallingIdentity(ident); 3765 } 3766 } 3767 3768 private void clearDeviceOwnerUserRestrictionLocked(UserHandle userHandle) { 3769 // ManagedProvisioning/DPC sets DISALLOW_ADD_USER. Clear to recover to the original state 3770 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_USER, userHandle)) { 3771 mUserManager.setUserRestriction(UserManager.DISALLOW_ADD_USER, false, userHandle); 3772 } 3773 } 3774 3775 /** 3776 * Return if a given package has testOnly="true", in which case we'll relax certain rules 3777 * for CTS. 3778 * 3779 * DO NOT use this method except in {@link #setActiveAdmin}. Use {@link #isAdminTestOnlyLocked} 3780 * to check wehter an active admin is test-only or not. 3781 * 3782 * The system allows this flag to be changed when an app is updated, which is not good 3783 * for us. So we persist the flag in {@link ActiveAdmin} when an admin is first installed, 3784 * and used the persisted version in actual checks. (See b/31382361 and b/28928996) 3785 */ 3786 private boolean isPackageTestOnly(String packageName, int userHandle) { 3787 final ApplicationInfo ai; 3788 try { 3789 ai = mInjector.getIPackageManager().getApplicationInfo(packageName, 3790 (PackageManager.MATCH_DIRECT_BOOT_AWARE 3791 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE), userHandle); 3792 } catch (RemoteException e) { 3793 throw new IllegalStateException(e); 3794 } 3795 if (ai == null) { 3796 throw new IllegalStateException("Couldn't find package: " 3797 + packageName + " on user " + userHandle); 3798 } 3799 return (ai.flags & ApplicationInfo.FLAG_TEST_ONLY) != 0; 3800 } 3801 3802 /** 3803 * See {@link #isPackageTestOnly}. 3804 */ 3805 private boolean isAdminTestOnlyLocked(ComponentName who, int userHandle) { 3806 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3807 return (admin != null) && admin.testOnlyAdmin; 3808 } 3809 3810 private void enforceShell(String method) { 3811 final int callingUid = mInjector.binderGetCallingUid(); 3812 if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) { 3813 throw new SecurityException("Non-shell user attempted to call " + method); 3814 } 3815 } 3816 3817 @Override 3818 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 3819 if (!mHasFeature) { 3820 return; 3821 } 3822 enforceFullCrossUsersPermission(userHandle); 3823 enforceUserUnlocked(userHandle); 3824 synchronized (this) { 3825 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3826 if (admin == null) { 3827 return; 3828 } 3829 // Active device/profile owners must remain active admins. 3830 if (isDeviceOwner(adminReceiver, userHandle) 3831 || isProfileOwner(adminReceiver, userHandle)) { 3832 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 3833 adminReceiver); 3834 return; 3835 } 3836 if (admin.getUid() != mInjector.binderGetCallingUid()) { 3837 mContext.enforceCallingOrSelfPermission( 3838 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3839 } 3840 long ident = mInjector.binderClearCallingIdentity(); 3841 try { 3842 removeActiveAdminLocked(adminReceiver, userHandle); 3843 } finally { 3844 mInjector.binderRestoreCallingIdentity(ident); 3845 } 3846 } 3847 } 3848 3849 @Override 3850 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 3851 ComponentName profileOwner = getProfileOwner(userHandle); 3852 // Profile challenge is supported on N or newer release. 3853 return profileOwner != null && 3854 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 3855 } 3856 3857 @Override 3858 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 3859 if (!mHasFeature) { 3860 return; 3861 } 3862 Preconditions.checkNotNull(who, "ComponentName is null"); 3863 validateQualityConstant(quality); 3864 3865 synchronized (this) { 3866 ActiveAdmin ap = getActiveAdminForCallerLocked( 3867 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3868 if (ap.minimumPasswordMetrics.quality != quality) { 3869 ap.minimumPasswordMetrics.quality = quality; 3870 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3871 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3872 } 3873 } 3874 } 3875 3876 /** 3877 * Updates flag in memory that tells us whether the user's password currently satisfies the 3878 * requirements set by all of the user's active admins. This should be called before 3879 * {@link #saveSettingsLocked} whenever the password or the admin policies have changed. 3880 */ 3881 @GuardedBy("DevicePolicyManagerService.this") 3882 private void updatePasswordValidityCheckpointLocked(int userHandle) { 3883 DevicePolicyData policy = getUserData(userHandle); 3884 policy.mPasswordValidAtLastCheckpoint = isActivePasswordSufficientForUserLocked( 3885 policy, policy.mUserHandle, false); 3886 } 3887 3888 @Override 3889 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 3890 if (!mHasFeature) { 3891 return PASSWORD_QUALITY_UNSPECIFIED; 3892 } 3893 enforceFullCrossUsersPermission(userHandle); 3894 synchronized (this) { 3895 int mode = PASSWORD_QUALITY_UNSPECIFIED; 3896 3897 if (who != null) { 3898 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3899 return admin != null ? admin.minimumPasswordMetrics.quality : mode; 3900 } 3901 3902 // Return the strictest policy across all participating admins. 3903 List<ActiveAdmin> admins = 3904 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3905 final int N = admins.size(); 3906 for (int i = 0; i < N; i++) { 3907 ActiveAdmin admin = admins.get(i); 3908 if (mode < admin.minimumPasswordMetrics.quality) { 3909 mode = admin.minimumPasswordMetrics.quality; 3910 } 3911 } 3912 return mode; 3913 } 3914 } 3915 3916 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 3917 int userHandle, boolean parent) { 3918 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 3919 // If this user has a separate challenge, only return its restrictions. 3920 return getUserDataUnchecked(userHandle).mAdminList; 3921 } else { 3922 // Return all admins for this user and the profiles that are visible from this 3923 // user that do not use a separate work challenge. 3924 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 3925 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3926 DevicePolicyData policy = getUserData(userInfo.id); 3927 if (!userInfo.isManagedProfile()) { 3928 admins.addAll(policy.mAdminList); 3929 } else { 3930 // For managed profiles, we always include the policies set on the parent 3931 // profile. Additionally, we include the ones set on the managed profile 3932 // if no separate challenge is in place. 3933 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 3934 final int N = policy.mAdminList.size(); 3935 for (int i = 0; i < N; i++) { 3936 ActiveAdmin admin = policy.mAdminList.get(i); 3937 if (admin.hasParentActiveAdmin()) { 3938 admins.add(admin.getParentActiveAdmin()); 3939 } 3940 if (!hasSeparateChallenge) { 3941 admins.add(admin); 3942 } 3943 } 3944 } 3945 } 3946 return admins; 3947 } 3948 } 3949 3950 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 3951 long ident = mInjector.binderClearCallingIdentity(); 3952 try { 3953 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 3954 } finally { 3955 mInjector.binderRestoreCallingIdentity(ident); 3956 } 3957 } 3958 3959 @Override 3960 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 3961 if (!mHasFeature) { 3962 return; 3963 } 3964 Preconditions.checkNotNull(who, "ComponentName is null"); 3965 synchronized (this) { 3966 ActiveAdmin ap = getActiveAdminForCallerLocked( 3967 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3968 if (ap.minimumPasswordMetrics.length != length) { 3969 ap.minimumPasswordMetrics.length = length; 3970 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3971 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3972 } 3973 } 3974 } 3975 3976 @Override 3977 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 3978 return getStrictestPasswordRequirement(who, userHandle, parent, 3979 admin -> admin.minimumPasswordMetrics.length, PASSWORD_QUALITY_UNSPECIFIED); 3980 } 3981 3982 @Override 3983 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 3984 if (!mHasFeature) { 3985 return; 3986 } 3987 Preconditions.checkNotNull(who, "ComponentName is null"); 3988 synchronized (this) { 3989 ActiveAdmin ap = getActiveAdminForCallerLocked( 3990 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3991 if (ap.passwordHistoryLength != length) { 3992 ap.passwordHistoryLength = length; 3993 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3994 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3995 } 3996 } 3997 } 3998 3999 @Override 4000 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 4001 return getStrictestPasswordRequirement(who, userHandle, parent, 4002 admin -> admin.passwordHistoryLength, PASSWORD_QUALITY_UNSPECIFIED); 4003 } 4004 4005 @Override 4006 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 4007 if (!mHasFeature) { 4008 return; 4009 } 4010 Preconditions.checkNotNull(who, "ComponentName is null"); 4011 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 4012 final int userHandle = mInjector.userHandleGetCallingUserId(); 4013 synchronized (this) { 4014 ActiveAdmin ap = getActiveAdminForCallerLocked( 4015 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 4016 // Calling this API automatically bumps the expiration date 4017 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 4018 ap.passwordExpirationDate = expiration; 4019 ap.passwordExpirationTimeout = timeout; 4020 if (timeout > 0L) { 4021 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 4022 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 4023 .format(new Date(expiration))); 4024 } 4025 saveSettingsLocked(userHandle); 4026 4027 // in case this is the first one, set the alarm on the appropriate user. 4028 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 4029 } 4030 } 4031 4032 /** 4033 * Return a single admin's expiration cycle time, or the min of all cycle times. 4034 * Returns 0 if not configured. 4035 */ 4036 @Override 4037 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 4038 if (!mHasFeature) { 4039 return 0L; 4040 } 4041 enforceFullCrossUsersPermission(userHandle); 4042 synchronized (this) { 4043 long timeout = 0L; 4044 4045 if (who != null) { 4046 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4047 return admin != null ? admin.passwordExpirationTimeout : timeout; 4048 } 4049 4050 // Return the strictest policy across all participating admins. 4051 List<ActiveAdmin> admins = 4052 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4053 final int N = admins.size(); 4054 for (int i = 0; i < N; i++) { 4055 ActiveAdmin admin = admins.get(i); 4056 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 4057 && timeout > admin.passwordExpirationTimeout)) { 4058 timeout = admin.passwordExpirationTimeout; 4059 } 4060 } 4061 return timeout; 4062 } 4063 } 4064 4065 @Override 4066 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 4067 final int userId = UserHandle.getCallingUserId(); 4068 List<String> changedProviders = null; 4069 4070 synchronized (this) { 4071 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 4072 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4073 if (activeAdmin.crossProfileWidgetProviders == null) { 4074 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 4075 } 4076 List<String> providers = activeAdmin.crossProfileWidgetProviders; 4077 if (!providers.contains(packageName)) { 4078 providers.add(packageName); 4079 changedProviders = new ArrayList<>(providers); 4080 saveSettingsLocked(userId); 4081 } 4082 } 4083 4084 if (changedProviders != null) { 4085 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 4086 return true; 4087 } 4088 4089 return false; 4090 } 4091 4092 @Override 4093 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 4094 final int userId = UserHandle.getCallingUserId(); 4095 List<String> changedProviders = null; 4096 4097 synchronized (this) { 4098 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 4099 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4100 if (activeAdmin.crossProfileWidgetProviders == null 4101 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 4102 return false; 4103 } 4104 List<String> providers = activeAdmin.crossProfileWidgetProviders; 4105 if (providers.remove(packageName)) { 4106 changedProviders = new ArrayList<>(providers); 4107 saveSettingsLocked(userId); 4108 } 4109 } 4110 4111 if (changedProviders != null) { 4112 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 4113 return true; 4114 } 4115 4116 return false; 4117 } 4118 4119 @Override 4120 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 4121 synchronized (this) { 4122 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 4123 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4124 if (activeAdmin.crossProfileWidgetProviders == null 4125 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 4126 return null; 4127 } 4128 if (mInjector.binderIsCallingUidMyUid()) { 4129 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 4130 } else { 4131 return activeAdmin.crossProfileWidgetProviders; 4132 } 4133 } 4134 } 4135 4136 /** 4137 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 4138 * Returns 0 if not configured. 4139 */ 4140 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 4141 long timeout = 0L; 4142 4143 if (who != null) { 4144 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4145 return admin != null ? admin.passwordExpirationDate : timeout; 4146 } 4147 4148 // Return the strictest policy across all participating admins. 4149 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4150 final int N = admins.size(); 4151 for (int i = 0; i < N; i++) { 4152 ActiveAdmin admin = admins.get(i); 4153 if (timeout == 0L || (admin.passwordExpirationDate != 0 4154 && timeout > admin.passwordExpirationDate)) { 4155 timeout = admin.passwordExpirationDate; 4156 } 4157 } 4158 return timeout; 4159 } 4160 4161 @Override 4162 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 4163 if (!mHasFeature) { 4164 return 0L; 4165 } 4166 enforceFullCrossUsersPermission(userHandle); 4167 synchronized (this) { 4168 return getPasswordExpirationLocked(who, userHandle, parent); 4169 } 4170 } 4171 4172 @Override 4173 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 4174 if (!mHasFeature) { 4175 return; 4176 } 4177 Preconditions.checkNotNull(who, "ComponentName is null"); 4178 synchronized (this) { 4179 ActiveAdmin ap = getActiveAdminForCallerLocked( 4180 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4181 if (ap.minimumPasswordMetrics.upperCase != length) { 4182 ap.minimumPasswordMetrics.upperCase = length; 4183 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 4184 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4185 } 4186 } 4187 } 4188 4189 @Override 4190 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 4191 return getStrictestPasswordRequirement(who, userHandle, parent, 4192 admin -> admin.minimumPasswordMetrics.upperCase, PASSWORD_QUALITY_COMPLEX); 4193 } 4194 4195 @Override 4196 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 4197 Preconditions.checkNotNull(who, "ComponentName is null"); 4198 synchronized (this) { 4199 ActiveAdmin ap = getActiveAdminForCallerLocked( 4200 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4201 if (ap.minimumPasswordMetrics.lowerCase != length) { 4202 ap.minimumPasswordMetrics.lowerCase = length; 4203 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 4204 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4205 } 4206 } 4207 } 4208 4209 @Override 4210 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 4211 return getStrictestPasswordRequirement(who, userHandle, parent, 4212 admin -> admin.minimumPasswordMetrics.lowerCase, PASSWORD_QUALITY_COMPLEX); 4213 } 4214 4215 @Override 4216 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 4217 if (!mHasFeature) { 4218 return; 4219 } 4220 Preconditions.checkNotNull(who, "ComponentName is null"); 4221 synchronized (this) { 4222 ActiveAdmin ap = getActiveAdminForCallerLocked( 4223 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4224 if (ap.minimumPasswordMetrics.letters != length) { 4225 ap.minimumPasswordMetrics.letters = length; 4226 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 4227 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4228 } 4229 } 4230 } 4231 4232 @Override 4233 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 4234 return getStrictestPasswordRequirement(who, userHandle, parent, 4235 admin -> admin.minimumPasswordMetrics.letters, PASSWORD_QUALITY_COMPLEX); 4236 } 4237 4238 @Override 4239 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 4240 if (!mHasFeature) { 4241 return; 4242 } 4243 Preconditions.checkNotNull(who, "ComponentName is null"); 4244 synchronized (this) { 4245 ActiveAdmin ap = getActiveAdminForCallerLocked( 4246 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4247 if (ap.minimumPasswordMetrics.numeric != length) { 4248 ap.minimumPasswordMetrics.numeric = length; 4249 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 4250 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4251 } 4252 } 4253 } 4254 4255 @Override 4256 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 4257 return getStrictestPasswordRequirement(who, userHandle, parent, 4258 admin -> admin.minimumPasswordMetrics.numeric, PASSWORD_QUALITY_COMPLEX); 4259 } 4260 4261 @Override 4262 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 4263 if (!mHasFeature) { 4264 return; 4265 } 4266 Preconditions.checkNotNull(who, "ComponentName is null"); 4267 synchronized (this) { 4268 ActiveAdmin ap = getActiveAdminForCallerLocked( 4269 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4270 if (ap.minimumPasswordMetrics.symbols != length) { 4271 ap.minimumPasswordMetrics.symbols = length; 4272 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 4273 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4274 } 4275 } 4276 } 4277 4278 @Override 4279 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 4280 return getStrictestPasswordRequirement(who, userHandle, parent, 4281 admin -> admin.minimumPasswordMetrics.symbols, PASSWORD_QUALITY_COMPLEX); 4282 } 4283 4284 @Override 4285 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 4286 if (!mHasFeature) { 4287 return; 4288 } 4289 Preconditions.checkNotNull(who, "ComponentName is null"); 4290 synchronized (this) { 4291 ActiveAdmin ap = getActiveAdminForCallerLocked( 4292 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4293 if (ap.minimumPasswordMetrics.nonLetter != length) { 4294 ap.minimumPasswordMetrics.nonLetter = length; 4295 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 4296 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4297 } 4298 } 4299 } 4300 4301 @Override 4302 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 4303 return getStrictestPasswordRequirement(who, userHandle, parent, 4304 admin -> admin.minimumPasswordMetrics.nonLetter, PASSWORD_QUALITY_COMPLEX); 4305 } 4306 4307 /** 4308 * Calculates strictest (maximum) value for a given password property enforced by admin[s]. 4309 */ 4310 private int getStrictestPasswordRequirement(ComponentName who, int userHandle, 4311 boolean parent, Function<ActiveAdmin, Integer> getter, int minimumPasswordQuality) { 4312 if (!mHasFeature) { 4313 return 0; 4314 } 4315 enforceFullCrossUsersPermission(userHandle); 4316 synchronized (this) { 4317 if (who != null) { 4318 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4319 return admin != null ? getter.apply(admin) : 0; 4320 } 4321 4322 int maxValue = 0; 4323 final List<ActiveAdmin> admins = 4324 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4325 final int N = admins.size(); 4326 for (int i = 0; i < N; i++) { 4327 final ActiveAdmin admin = admins.get(i); 4328 if (!isLimitPasswordAllowed(admin, minimumPasswordQuality)) { 4329 continue; 4330 } 4331 final Integer adminValue = getter.apply(admin); 4332 if (adminValue > maxValue) { 4333 maxValue = adminValue; 4334 } 4335 } 4336 return maxValue; 4337 } 4338 } 4339 4340 /* @return the password blacklist set by the admin or {@code null} if none. */ 4341 PasswordBlacklist getAdminPasswordBlacklistLocked(@NonNull ActiveAdmin admin) { 4342 final int userId = UserHandle.getUserId(admin.getUid()); 4343 return admin.passwordBlacklistFile == null ? null : new PasswordBlacklist( 4344 new File(getPolicyFileDirectory(userId), admin.passwordBlacklistFile)); 4345 } 4346 4347 private static final String PASSWORD_BLACKLIST_FILE_PREFIX = "password-blacklist-"; 4348 private static final String PASSWORD_BLACKLIST_FILE_SUFFIX = ""; 4349 4350 @Override 4351 public boolean setPasswordBlacklist(ComponentName who, String name, List<String> blacklist, 4352 boolean parent) { 4353 if (!mHasFeature) { 4354 return false; 4355 } 4356 Preconditions.checkNotNull(who, "who is null"); 4357 4358 synchronized (this) { 4359 final ActiveAdmin admin = getActiveAdminForCallerLocked( 4360 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 4361 final int userId = mInjector.userHandleGetCallingUserId(); 4362 PasswordBlacklist adminBlacklist = getAdminPasswordBlacklistLocked(admin); 4363 4364 if (blacklist == null || blacklist.isEmpty()) { 4365 // Remove the adminBlacklist 4366 admin.passwordBlacklistFile = null; 4367 saveSettingsLocked(userId); 4368 if (adminBlacklist != null) { 4369 adminBlacklist.delete(); 4370 } 4371 return true; 4372 } 4373 4374 // Validate server side 4375 Preconditions.checkNotNull(name, "name is null"); 4376 DevicePolicyManager.enforcePasswordBlacklistSize(blacklist); 4377 4378 // Blacklist is case insensitive so normalize to lower case 4379 final int blacklistSize = blacklist.size(); 4380 for (int i = 0; i < blacklistSize; ++i) { 4381 blacklist.set(i, blacklist.get(i).toLowerCase()); 4382 } 4383 4384 final boolean isNewBlacklist = adminBlacklist == null; 4385 if (isNewBlacklist) { 4386 // Create a new file for the blacklist. There could be multiple admins, each setting 4387 // different blacklists, to restrict a user's credential, for example a managed 4388 // profile can impose restrictions on its parent while the parent is already 4389 // restricted by its own admin. A deterministic naming scheme would be fragile if 4390 // new types of admin are introduced so we generate and save the file name instead. 4391 // This isn't a temporary file but it reuses the name generation logic 4392 final File file; 4393 try { 4394 file = File.createTempFile(PASSWORD_BLACKLIST_FILE_PREFIX, 4395 PASSWORD_BLACKLIST_FILE_SUFFIX, getPolicyFileDirectory(userId)); 4396 } catch (IOException e) { 4397 Slog.e(LOG_TAG, "Failed to make a file for the blacklist", e); 4398 return false; 4399 } 4400 adminBlacklist = mInjector.newPasswordBlacklist(file); 4401 } 4402 4403 if (adminBlacklist.savePasswordBlacklist(name, blacklist)) { 4404 if (isNewBlacklist) { 4405 // The blacklist was saved so point the admin to the file 4406 admin.passwordBlacklistFile = adminBlacklist.getFile().getName(); 4407 saveSettingsLocked(userId); 4408 } 4409 return true; 4410 } 4411 } 4412 4413 return false; 4414 } 4415 4416 @Override 4417 public String getPasswordBlacklistName(ComponentName who, @UserIdInt int userId, 4418 boolean parent) { 4419 if (!mHasFeature) { 4420 return null; 4421 } 4422 Preconditions.checkNotNull(who, "who is null"); 4423 enforceFullCrossUsersPermission(userId); 4424 synchronized (this) { 4425 final ActiveAdmin admin = getActiveAdminForCallerLocked( 4426 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 4427 final PasswordBlacklist blacklist = getAdminPasswordBlacklistLocked(admin); 4428 if (blacklist == null) { 4429 return null; 4430 } 4431 return blacklist.getName(); 4432 } 4433 } 4434 4435 @Override 4436 public boolean isPasswordBlacklisted(@UserIdInt int userId, String password) { 4437 if (!mHasFeature) { 4438 return false; 4439 } 4440 mContext.enforceCallingOrSelfPermission( 4441 android.Manifest.permission.TEST_BLACKLISTED_PASSWORD, null); 4442 return isPasswordBlacklistedInternal(userId, password); 4443 } 4444 4445 private boolean isPasswordBlacklistedInternal(@UserIdInt int userId, String password) { 4446 Preconditions.checkNotNull(password, "Password is null"); 4447 enforceFullCrossUsersPermission(userId); 4448 4449 // Normalize to lower case for case insensitive blacklist match 4450 final String lowerCasePassword = password.toLowerCase(); 4451 4452 synchronized (this) { 4453 final List<ActiveAdmin> admins = 4454 getActiveAdminsForLockscreenPoliciesLocked(userId, /* parent */ false); 4455 final int N = admins.size(); 4456 for (int i = 0; i < N; i++) { 4457 final PasswordBlacklist blacklist 4458 = getAdminPasswordBlacklistLocked(admins.get(i)); 4459 if (blacklist != null) { 4460 if (blacklist.isPasswordBlacklisted(lowerCasePassword)) { 4461 return true; 4462 } 4463 } 4464 } 4465 } 4466 4467 return false; 4468 } 4469 4470 @Override 4471 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 4472 if (!mHasFeature) { 4473 return true; 4474 } 4475 enforceFullCrossUsersPermission(userHandle); 4476 enforceUserUnlocked(userHandle, parent); 4477 4478 synchronized (this) { 4479 // This API can only be called by an active device admin, 4480 // so try to retrieve it to check that the caller is one. 4481 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4482 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 4483 return isActivePasswordSufficientForUserLocked(policy, userHandle, parent); 4484 } 4485 } 4486 4487 @Override 4488 public boolean isUsingUnifiedPassword(ComponentName admin) { 4489 if (!mHasFeature) { 4490 return true; 4491 } 4492 final int userId = mInjector.userHandleGetCallingUserId(); 4493 enforceProfileOrDeviceOwner(admin); 4494 enforceManagedProfile(userId, "query unified challenge status"); 4495 return !isSeparateProfileChallengeEnabled(userId); 4496 } 4497 4498 @Override 4499 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 4500 if (!mHasFeature) { 4501 return true; 4502 } 4503 enforceFullCrossUsersPermission(userHandle); 4504 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 4505 4506 synchronized (this) { 4507 final int targetUser = getProfileParentId(userHandle); 4508 enforceUserUnlocked(targetUser, false); 4509 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false)); 4510 return isActivePasswordSufficientForUserLocked(policy, targetUser, false); 4511 } 4512 } 4513 4514 private boolean isActivePasswordSufficientForUserLocked( 4515 DevicePolicyData policy, int userHandle, boolean parent) { 4516 final int requiredPasswordQuality = getPasswordQuality(null, userHandle, parent); 4517 if (requiredPasswordQuality == PASSWORD_QUALITY_UNSPECIFIED) { 4518 // A special case is when there is no required password quality, then we just return 4519 // true since any password would be sufficient. This is for the scenario when a work 4520 // profile is first created so there is no information about the current password but 4521 // it should be considered sufficient as there is no password requirement either. 4522 // This is useful since it short-circuits the password checkpoint for FDE device below. 4523 return true; 4524 } 4525 4526 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled() 4527 && !policy.mPasswordStateHasBeenSetSinceBoot) { 4528 // Before user enters their password for the first time after a reboot, return the 4529 // value of this flag, which tells us whether the password was valid the last time 4530 // settings were saved. If DPC changes password requirements on boot so that the 4531 // current password no longer meets the requirements, this value will be stale until 4532 // the next time the password is entered. 4533 return policy.mPasswordValidAtLastCheckpoint; 4534 } 4535 4536 if (policy.mActivePasswordMetrics.quality < requiredPasswordQuality) { 4537 return false; 4538 } 4539 if (requiredPasswordQuality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC 4540 && policy.mActivePasswordMetrics.length < getPasswordMinimumLength( 4541 null, userHandle, parent)) { 4542 return false; 4543 } 4544 if (requiredPasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4545 return true; 4546 } 4547 return policy.mActivePasswordMetrics.upperCase >= getPasswordMinimumUpperCase( 4548 null, userHandle, parent) 4549 && policy.mActivePasswordMetrics.lowerCase >= getPasswordMinimumLowerCase( 4550 null, userHandle, parent) 4551 && policy.mActivePasswordMetrics.letters >= getPasswordMinimumLetters( 4552 null, userHandle, parent) 4553 && policy.mActivePasswordMetrics.numeric >= getPasswordMinimumNumeric( 4554 null, userHandle, parent) 4555 && policy.mActivePasswordMetrics.symbols >= getPasswordMinimumSymbols( 4556 null, userHandle, parent) 4557 && policy.mActivePasswordMetrics.nonLetter >= getPasswordMinimumNonLetter( 4558 null, userHandle, parent); 4559 } 4560 4561 @Override 4562 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 4563 enforceFullCrossUsersPermission(userHandle); 4564 synchronized (this) { 4565 if (!isCallerWithSystemUid()) { 4566 // This API can only be called by an active device admin, 4567 // so try to retrieve it to check that the caller is one. 4568 getActiveAdminForCallerLocked( 4569 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4570 } 4571 4572 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 4573 4574 return policy.mFailedPasswordAttempts; 4575 } 4576 } 4577 4578 @Override 4579 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 4580 if (!mHasFeature) { 4581 return; 4582 } 4583 Preconditions.checkNotNull(who, "ComponentName is null"); 4584 synchronized (this) { 4585 // This API can only be called by an active device admin, 4586 // so try to retrieve it to check that the caller is one. 4587 getActiveAdminForCallerLocked( 4588 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 4589 ActiveAdmin ap = getActiveAdminForCallerLocked( 4590 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4591 if (ap.maximumFailedPasswordsForWipe != num) { 4592 ap.maximumFailedPasswordsForWipe = num; 4593 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4594 } 4595 } 4596 } 4597 4598 @Override 4599 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 4600 if (!mHasFeature) { 4601 return 0; 4602 } 4603 enforceFullCrossUsersPermission(userHandle); 4604 synchronized (this) { 4605 ActiveAdmin admin = (who != null) 4606 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 4607 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 4608 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 4609 } 4610 } 4611 4612 @Override 4613 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 4614 if (!mHasFeature) { 4615 return UserHandle.USER_NULL; 4616 } 4617 enforceFullCrossUsersPermission(userHandle); 4618 synchronized (this) { 4619 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4620 userHandle, parent); 4621 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 4622 } 4623 } 4624 4625 /** 4626 * Returns the admin with the strictest policy on maximum failed passwords for: 4627 * <ul> 4628 * <li>this user if it has a separate profile challenge, or 4629 * <li>this user and all profiles that don't have their own challenge otherwise. 4630 * </ul> 4631 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 4632 * the primary profile. 4633 * Returns {@code null} if no participating admin has that policy set. 4634 */ 4635 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 4636 int userHandle, boolean parent) { 4637 int count = 0; 4638 ActiveAdmin strictestAdmin = null; 4639 4640 // Return the strictest policy across all participating admins. 4641 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4642 final int N = admins.size(); 4643 for (int i = 0; i < N; i++) { 4644 ActiveAdmin admin = admins.get(i); 4645 if (admin.maximumFailedPasswordsForWipe == 4646 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 4647 continue; // No max number of failed passwords policy set for this profile. 4648 } 4649 4650 // We always favor the primary profile if several profiles have the same value set. 4651 int userId = admin.getUserHandle().getIdentifier(); 4652 if (count == 0 || 4653 count > admin.maximumFailedPasswordsForWipe || 4654 (count == admin.maximumFailedPasswordsForWipe && 4655 getUserInfo(userId).isPrimary())) { 4656 count = admin.maximumFailedPasswordsForWipe; 4657 strictestAdmin = admin; 4658 } 4659 } 4660 return strictestAdmin; 4661 } 4662 4663 private UserInfo getUserInfo(@UserIdInt int userId) { 4664 final long token = mInjector.binderClearCallingIdentity(); 4665 try { 4666 return mUserManager.getUserInfo(userId); 4667 } finally { 4668 mInjector.binderRestoreCallingIdentity(token); 4669 } 4670 } 4671 4672 private boolean canPOorDOCallResetPassword(ActiveAdmin admin, @UserIdInt int userId) { 4673 // Only if the admins targets a pre-O SDK 4674 return getTargetSdk(admin.info.getPackageName(), userId) < Build.VERSION_CODES.O; 4675 } 4676 4677 /* PO or DO could do an untrusted reset in certain conditions. */ 4678 private boolean canUserHaveUntrustedCredentialReset(@UserIdInt int userId) { 4679 synchronized (this) { 4680 // An active DO or PO might be able to fo an untrusted credential reset 4681 for (final ActiveAdmin admin : getUserData(userId).mAdminList) { 4682 if (!isActiveAdminWithPolicyForUserLocked(admin, 4683 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, userId)) { 4684 continue; 4685 } 4686 if (canPOorDOCallResetPassword(admin, userId)) { 4687 return true; 4688 } 4689 } 4690 return false; 4691 } 4692 } 4693 4694 @Override 4695 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 4696 final int callingUid = mInjector.binderGetCallingUid(); 4697 final int userHandle = mInjector.userHandleGetCallingUserId(); 4698 4699 String password = passwordOrNull != null ? passwordOrNull : ""; 4700 4701 // Password resetting to empty/null is not allowed for managed profiles. 4702 if (TextUtils.isEmpty(password)) { 4703 enforceNotManagedProfile(userHandle, "clear the active password"); 4704 } 4705 4706 synchronized (this) { 4707 // If caller has PO (or DO) it can change the password, so see if that's the case first. 4708 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 4709 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 4710 final boolean preN; 4711 if (admin != null) { 4712 if (!canPOorDOCallResetPassword(admin, userHandle)) { 4713 throw new SecurityException("resetPassword() is deprecated for DPC targeting O" 4714 + " or later"); 4715 } 4716 preN = getTargetSdk(admin.info.getPackageName(), 4717 userHandle) <= android.os.Build.VERSION_CODES.M; 4718 } else { 4719 // Otherwise, make sure the caller has any active admin with the right policy. 4720 admin = getActiveAdminForCallerLocked(null, 4721 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 4722 preN = getTargetSdk(admin.info.getPackageName(), 4723 userHandle) <= android.os.Build.VERSION_CODES.M; 4724 4725 // As of N, password resetting to empty/null is not allowed anymore. 4726 // TODO Should we allow DO/PO to set an empty password? 4727 if (TextUtils.isEmpty(password)) { 4728 if (!preN) { 4729 throw new SecurityException("Cannot call with null password"); 4730 } else { 4731 Slog.e(LOG_TAG, "Cannot call with null password"); 4732 return false; 4733 } 4734 } 4735 // As of N, password cannot be changed by the admin if it is already set. 4736 if (isLockScreenSecureUnchecked(userHandle)) { 4737 if (!preN) { 4738 throw new SecurityException("Admin cannot change current password"); 4739 } else { 4740 Slog.e(LOG_TAG, "Admin cannot change current password"); 4741 return false; 4742 } 4743 } 4744 } 4745 // Do not allow to reset password when current user has a managed profile 4746 if (!isManagedProfile(userHandle)) { 4747 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4748 if (userInfo.isManagedProfile()) { 4749 if (!preN) { 4750 throw new IllegalStateException( 4751 "Cannot reset password on user has managed profile"); 4752 } else { 4753 Slog.e(LOG_TAG, "Cannot reset password on user has managed profile"); 4754 return false; 4755 } 4756 } 4757 } 4758 } 4759 // Do not allow to reset password when user is locked 4760 if (!mUserManager.isUserUnlocked(userHandle)) { 4761 if (!preN) { 4762 throw new IllegalStateException("Cannot reset password when user is locked"); 4763 } else { 4764 Slog.e(LOG_TAG, "Cannot reset password when user is locked"); 4765 return false; 4766 } 4767 } 4768 } 4769 4770 return resetPasswordInternal(password, 0, null, flags, callingUid, userHandle); 4771 } 4772 4773 private boolean resetPasswordInternal(String password, long tokenHandle, byte[] token, 4774 int flags, int callingUid, int userHandle) { 4775 int quality; 4776 synchronized (this) { 4777 quality = getPasswordQuality(null, userHandle, /* parent */ false); 4778 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 4779 quality = PASSWORD_QUALITY_UNSPECIFIED; 4780 } 4781 final PasswordMetrics metrics = PasswordMetrics.computeForPassword(password); 4782 if (quality != PASSWORD_QUALITY_UNSPECIFIED) { 4783 final int realQuality = metrics.quality; 4784 if (realQuality < quality 4785 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4786 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 4787 + Integer.toHexString(realQuality) 4788 + " does not meet required quality 0x" 4789 + Integer.toHexString(quality)); 4790 return false; 4791 } 4792 quality = Math.max(realQuality, quality); 4793 } 4794 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 4795 if (password.length() < length) { 4796 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 4797 + " does not meet required length " + length); 4798 return false; 4799 } 4800 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4801 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 4802 if(metrics.letters < neededLetters) { 4803 Slog.w(LOG_TAG, "resetPassword: number of letters " + metrics.letters 4804 + " does not meet required number of letters " + neededLetters); 4805 return false; 4806 } 4807 int neededNumeric = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 4808 if (metrics.numeric < neededNumeric) { 4809 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + metrics.numeric 4810 + " does not meet required number of numerical digits " 4811 + neededNumeric); 4812 return false; 4813 } 4814 int neededLowerCase = getPasswordMinimumLowerCase( 4815 null, userHandle, /* parent */ false); 4816 if (metrics.lowerCase < neededLowerCase) { 4817 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " 4818 + metrics.lowerCase 4819 + " does not meet required number of lowercase letters " 4820 + neededLowerCase); 4821 return false; 4822 } 4823 int neededUpperCase = getPasswordMinimumUpperCase( 4824 null, userHandle, /* parent */ false); 4825 if (metrics.upperCase < neededUpperCase) { 4826 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " 4827 + metrics.upperCase 4828 + " does not meet required number of uppercase letters " 4829 + neededUpperCase); 4830 return false; 4831 } 4832 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 4833 if (metrics.symbols < neededSymbols) { 4834 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + metrics.symbols 4835 + " does not meet required number of special symbols " + neededSymbols); 4836 return false; 4837 } 4838 int neededNonLetter = getPasswordMinimumNonLetter( 4839 null, userHandle, /* parent */ false); 4840 if (metrics.nonLetter < neededNonLetter) { 4841 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " 4842 + metrics.nonLetter 4843 + " does not meet required number of non-letter characters " 4844 + neededNonLetter); 4845 return false; 4846 } 4847 } 4848 4849 if (isPasswordBlacklistedInternal(userHandle, password)) { 4850 Slog.w(LOG_TAG, "resetPassword: the password is blacklisted"); 4851 return false; 4852 } 4853 } 4854 4855 DevicePolicyData policy = getUserData(userHandle); 4856 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 4857 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 4858 return false; 4859 } 4860 4861 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 4862 boolean doNotAskCredentialsOnBoot = 4863 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 4864 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 4865 setDoNotAskCredentialsOnBoot(); 4866 } 4867 4868 // Don't do this with the lock held, because it is going to call 4869 // back in to the service. 4870 final long ident = mInjector.binderClearCallingIdentity(); 4871 final boolean result; 4872 try { 4873 if (token == null) { 4874 if (!TextUtils.isEmpty(password)) { 4875 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 4876 } else { 4877 mLockPatternUtils.clearLock(null, userHandle); 4878 } 4879 result = true; 4880 } else { 4881 result = mLockPatternUtils.setLockCredentialWithToken(password, 4882 TextUtils.isEmpty(password) ? LockPatternUtils.CREDENTIAL_TYPE_NONE 4883 : LockPatternUtils.CREDENTIAL_TYPE_PASSWORD, 4884 quality, tokenHandle, token, userHandle); 4885 } 4886 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 4887 if (requireEntry) { 4888 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 4889 UserHandle.USER_ALL); 4890 } 4891 synchronized (this) { 4892 int newOwner = requireEntry ? callingUid : -1; 4893 if (policy.mPasswordOwner != newOwner) { 4894 policy.mPasswordOwner = newOwner; 4895 saveSettingsLocked(userHandle); 4896 } 4897 } 4898 } finally { 4899 mInjector.binderRestoreCallingIdentity(ident); 4900 } 4901 return result; 4902 } 4903 4904 private boolean isLockScreenSecureUnchecked(int userId) { 4905 long ident = mInjector.binderClearCallingIdentity(); 4906 try { 4907 return mLockPatternUtils.isSecure(userId); 4908 } finally { 4909 mInjector.binderRestoreCallingIdentity(ident); 4910 } 4911 } 4912 4913 private void setDoNotAskCredentialsOnBoot() { 4914 synchronized (this) { 4915 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4916 if (!policyData.doNotAskCredentialsOnBoot) { 4917 policyData.doNotAskCredentialsOnBoot = true; 4918 saveSettingsLocked(UserHandle.USER_SYSTEM); 4919 } 4920 } 4921 } 4922 4923 @Override 4924 public boolean getDoNotAskCredentialsOnBoot() { 4925 mContext.enforceCallingOrSelfPermission( 4926 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 4927 synchronized (this) { 4928 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4929 return policyData.doNotAskCredentialsOnBoot; 4930 } 4931 } 4932 4933 @Override 4934 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 4935 if (!mHasFeature) { 4936 return; 4937 } 4938 Preconditions.checkNotNull(who, "ComponentName is null"); 4939 final int userHandle = mInjector.userHandleGetCallingUserId(); 4940 synchronized (this) { 4941 ActiveAdmin ap = getActiveAdminForCallerLocked( 4942 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4943 if (ap.maximumTimeToUnlock != timeMs) { 4944 ap.maximumTimeToUnlock = timeMs; 4945 saveSettingsLocked(userHandle); 4946 updateMaximumTimeToLockLocked(userHandle); 4947 } 4948 } 4949 } 4950 4951 private void updateMaximumTimeToLockLocked(@UserIdInt int userId) { 4952 // Update the profile's timeout 4953 if (isManagedProfile(userId)) { 4954 updateProfileLockTimeoutLocked(userId); 4955 } 4956 4957 final long timeMs; 4958 final long ident = mInjector.binderClearCallingIdentity(); 4959 try { 4960 // Update the device timeout 4961 final int parentId = getProfileParentId(userId); 4962 timeMs = getMaximumTimeToLockPolicyFromAdmins( 4963 getActiveAdminsForLockscreenPoliciesLocked(parentId, false)); 4964 4965 final DevicePolicyData policy = getUserDataUnchecked(parentId); 4966 if (policy.mLastMaximumTimeToLock == timeMs) { 4967 return; 4968 } 4969 policy.mLastMaximumTimeToLock = timeMs; 4970 4971 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 4972 // Make sure KEEP_SCREEN_ON is disabled, since that 4973 // would allow bypassing of the maximum time to lock. 4974 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 4975 } 4976 } finally { 4977 mInjector.binderRestoreCallingIdentity(ident); 4978 } 4979 4980 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4981 UserHandle.USER_SYSTEM, timeMs); 4982 } 4983 4984 private void updateProfileLockTimeoutLocked(@UserIdInt int userId) { 4985 final long timeMs; 4986 if (isSeparateProfileChallengeEnabled(userId)) { 4987 timeMs = getMaximumTimeToLockPolicyFromAdmins( 4988 getActiveAdminsForLockscreenPoliciesLocked(userId, false /* parent */)); 4989 } else { 4990 timeMs = Long.MAX_VALUE; 4991 } 4992 4993 final DevicePolicyData policy = getUserDataUnchecked(userId); 4994 if (policy.mLastMaximumTimeToLock == timeMs) { 4995 return; 4996 } 4997 policy.mLastMaximumTimeToLock = timeMs; 4998 4999 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 5000 userId, policy.mLastMaximumTimeToLock); 5001 } 5002 5003 @Override 5004 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 5005 if (!mHasFeature) { 5006 return 0; 5007 } 5008 enforceFullCrossUsersPermission(userHandle); 5009 synchronized (this) { 5010 if (who != null) { 5011 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 5012 return admin != null ? admin.maximumTimeToUnlock : 0; 5013 } 5014 // Return the strictest policy across all participating admins. 5015 final List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 5016 userHandle, parent); 5017 final long timeMs = getMaximumTimeToLockPolicyFromAdmins(admins); 5018 return timeMs == Long.MAX_VALUE ? 0 : timeMs; 5019 } 5020 } 5021 5022 private long getMaximumTimeToLockPolicyFromAdmins(List<ActiveAdmin> admins) { 5023 long time = Long.MAX_VALUE; 5024 for (final ActiveAdmin admin : admins) { 5025 if (admin.maximumTimeToUnlock > 0 && admin.maximumTimeToUnlock < time) { 5026 time = admin.maximumTimeToUnlock; 5027 } 5028 } 5029 return time; 5030 } 5031 5032 @Override 5033 public void setRequiredStrongAuthTimeout(ComponentName who, long timeoutMs, 5034 boolean parent) { 5035 if (!mHasFeature) { 5036 return; 5037 } 5038 Preconditions.checkNotNull(who, "ComponentName is null"); 5039 Preconditions.checkArgument(timeoutMs >= 0, "Timeout must not be a negative number."); 5040 // timeoutMs with value 0 means that the admin doesn't participate 5041 // timeoutMs is clamped to the interval in case the internal constants change in the future 5042 final long minimumStrongAuthTimeout = getMinimumStrongAuthTimeoutMs(); 5043 if (timeoutMs != 0 && timeoutMs < minimumStrongAuthTimeout) { 5044 timeoutMs = minimumStrongAuthTimeout; 5045 } 5046 if (timeoutMs > DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 5047 timeoutMs = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 5048 } 5049 5050 final int userHandle = mInjector.userHandleGetCallingUserId(); 5051 synchronized (this) { 5052 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5053 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 5054 if (ap.strongAuthUnlockTimeout != timeoutMs) { 5055 ap.strongAuthUnlockTimeout = timeoutMs; 5056 saveSettingsLocked(userHandle); 5057 } 5058 } 5059 } 5060 5061 /** 5062 * Return a single admin's strong auth unlock timeout or minimum value (strictest) of all 5063 * admins if who is null. 5064 * Returns 0 if not configured for the provided admin. 5065 */ 5066 @Override 5067 public long getRequiredStrongAuthTimeout(ComponentName who, int userId, boolean parent) { 5068 if (!mHasFeature) { 5069 return DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 5070 } 5071 enforceFullCrossUsersPermission(userId); 5072 synchronized (this) { 5073 if (who != null) { 5074 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId, parent); 5075 return admin != null ? admin.strongAuthUnlockTimeout : 0; 5076 } 5077 5078 // Return the strictest policy across all participating admins. 5079 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userId, parent); 5080 5081 long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 5082 for (int i = 0; i < admins.size(); i++) { 5083 final long timeout = admins.get(i).strongAuthUnlockTimeout; 5084 if (timeout != 0) { // take only participating admins into account 5085 strongAuthUnlockTimeout = Math.min(timeout, strongAuthUnlockTimeout); 5086 } 5087 } 5088 return Math.max(strongAuthUnlockTimeout, getMinimumStrongAuthTimeoutMs()); 5089 } 5090 } 5091 5092 private long getMinimumStrongAuthTimeoutMs() { 5093 if (!mInjector.isBuildDebuggable()) { 5094 return MINIMUM_STRONG_AUTH_TIMEOUT_MS; 5095 } 5096 // ideally the property was named persist.sys.min_strong_auth_timeout, but system property 5097 // name cannot be longer than 31 characters 5098 return Math.min(mInjector.systemPropertiesGetLong("persist.sys.min_str_auth_timeo", 5099 MINIMUM_STRONG_AUTH_TIMEOUT_MS), 5100 MINIMUM_STRONG_AUTH_TIMEOUT_MS); 5101 } 5102 5103 @Override 5104 public void lockNow(int flags, boolean parent) { 5105 if (!mHasFeature) { 5106 return; 5107 } 5108 5109 final int callingUserId = mInjector.userHandleGetCallingUserId(); 5110 synchronized (this) { 5111 // This API can only be called by an active device admin, 5112 // so try to retrieve it to check that the caller is one. 5113 final ActiveAdmin admin = getActiveAdminForCallerLocked( 5114 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 5115 5116 final long ident = mInjector.binderClearCallingIdentity(); 5117 try { 5118 // Evict key 5119 if ((flags & DevicePolicyManager.FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY) != 0) { 5120 enforceManagedProfile( 5121 callingUserId, "set FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY"); 5122 if (!isProfileOwner(admin.info.getComponent(), callingUserId)) { 5123 throw new SecurityException("Only profile owner admins can set " 5124 + "FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY"); 5125 } 5126 if (parent) { 5127 throw new IllegalArgumentException( 5128 "Cannot set FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY for the parent"); 5129 } 5130 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 5131 throw new UnsupportedOperationException( 5132 "FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY only applies to FBE devices"); 5133 } 5134 mUserManager.evictCredentialEncryptionKey(callingUserId); 5135 } 5136 5137 // Lock all users unless this is a managed profile with a separate challenge 5138 final int userToLock = (parent || !isSeparateProfileChallengeEnabled(callingUserId) 5139 ? UserHandle.USER_ALL : callingUserId); 5140 mLockPatternUtils.requireStrongAuth( 5141 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 5142 5143 // Require authentication for the device or profile 5144 if (userToLock == UserHandle.USER_ALL) { 5145 // Power off the display 5146 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 5147 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 5148 mInjector.getIWindowManager().lockNow(null); 5149 } else { 5150 mInjector.getTrustManager().setDeviceLockedForUser(userToLock, true); 5151 } 5152 } catch (RemoteException e) { 5153 } finally { 5154 mInjector.binderRestoreCallingIdentity(ident); 5155 } 5156 } 5157 } 5158 5159 @Override 5160 public void enforceCanManageCaCerts(ComponentName who, String callerPackage) { 5161 if (who == null) { 5162 if (!isCallerDelegate(callerPackage, DELEGATION_CERT_INSTALL)) { 5163 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 5164 } 5165 } else { 5166 enforceProfileOrDeviceOwner(who); 5167 } 5168 } 5169 5170 private void enforceProfileOrDeviceOwner(ComponentName who) { 5171 synchronized (this) { 5172 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5173 } 5174 } 5175 5176 @Override 5177 public boolean approveCaCert(String alias, int userId, boolean approval) { 5178 enforceManageUsers(); 5179 synchronized (this) { 5180 Set<String> certs = getUserData(userId).mAcceptedCaCertificates; 5181 boolean changed = (approval ? certs.add(alias) : certs.remove(alias)); 5182 if (!changed) { 5183 return false; 5184 } 5185 saveSettingsLocked(userId); 5186 } 5187 mCertificateMonitor.onCertificateApprovalsChanged(userId); 5188 return true; 5189 } 5190 5191 @Override 5192 public boolean isCaCertApproved(String alias, int userId) { 5193 enforceManageUsers(); 5194 synchronized (this) { 5195 return getUserData(userId).mAcceptedCaCertificates.contains(alias); 5196 } 5197 } 5198 5199 private void removeCaApprovalsIfNeeded(int userId) { 5200 for (UserInfo userInfo : mUserManager.getProfiles(userId)) { 5201 boolean isSecure = mLockPatternUtils.isSecure(userInfo.id); 5202 if (userInfo.isManagedProfile()){ 5203 isSecure |= mLockPatternUtils.isSecure(getProfileParentId(userInfo.id)); 5204 } 5205 if (!isSecure) { 5206 synchronized (this) { 5207 getUserData(userInfo.id).mAcceptedCaCertificates.clear(); 5208 saveSettingsLocked(userInfo.id); 5209 } 5210 mCertificateMonitor.onCertificateApprovalsChanged(userId); 5211 } 5212 } 5213 } 5214 5215 @Override 5216 public boolean installCaCert(ComponentName admin, String callerPackage, byte[] certBuffer) 5217 throws RemoteException { 5218 if (!mHasFeature) { 5219 return false; 5220 } 5221 enforceCanManageCaCerts(admin, callerPackage); 5222 5223 final String alias; 5224 5225 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 5226 final long id = mInjector.binderClearCallingIdentity(); 5227 try { 5228 alias = mCertificateMonitor.installCaCert(userHandle, certBuffer); 5229 if (alias == null) { 5230 Log.w(LOG_TAG, "Problem installing cert"); 5231 return false; 5232 } 5233 } finally { 5234 mInjector.binderRestoreCallingIdentity(id); 5235 } 5236 5237 synchronized (this) { 5238 getUserData(userHandle.getIdentifier()).mOwnerInstalledCaCerts.add(alias); 5239 saveSettingsLocked(userHandle.getIdentifier()); 5240 } 5241 return true; 5242 } 5243 5244 @Override 5245 public void uninstallCaCerts(ComponentName admin, String callerPackage, String[] aliases) { 5246 if (!mHasFeature) { 5247 return; 5248 } 5249 enforceCanManageCaCerts(admin, callerPackage); 5250 5251 final int userId = mInjector.userHandleGetCallingUserId(); 5252 final long id = mInjector.binderClearCallingIdentity(); 5253 try { 5254 mCertificateMonitor.uninstallCaCerts(UserHandle.of(userId), aliases); 5255 } finally { 5256 mInjector.binderRestoreCallingIdentity(id); 5257 } 5258 5259 synchronized (this) { 5260 if (getUserData(userId).mOwnerInstalledCaCerts.removeAll(Arrays.asList(aliases))) { 5261 saveSettingsLocked(userId); 5262 } 5263 } 5264 } 5265 5266 @Override 5267 public boolean installKeyPair(ComponentName who, String callerPackage, byte[] privKey, 5268 byte[] cert, byte[] chain, String alias, boolean requestAccess, 5269 boolean isUserSelectable) { 5270 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5271 DELEGATION_CERT_INSTALL); 5272 5273 5274 final int callingUid = mInjector.binderGetCallingUid(); 5275 final long id = mInjector.binderClearCallingIdentity(); 5276 try { 5277 final KeyChainConnection keyChainConnection = 5278 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 5279 try { 5280 IKeyChainService keyChain = keyChainConnection.getService(); 5281 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) { 5282 return false; 5283 } 5284 if (requestAccess) { 5285 keyChain.setGrant(callingUid, alias, true); 5286 } 5287 keyChain.setUserSelectable(alias, isUserSelectable); 5288 return true; 5289 } catch (RemoteException e) { 5290 Log.e(LOG_TAG, "Installing certificate", e); 5291 } finally { 5292 keyChainConnection.close(); 5293 } 5294 } catch (InterruptedException e) { 5295 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 5296 Thread.currentThread().interrupt(); 5297 } finally { 5298 mInjector.binderRestoreCallingIdentity(id); 5299 } 5300 return false; 5301 } 5302 5303 @Override 5304 public boolean removeKeyPair(ComponentName who, String callerPackage, String alias) { 5305 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5306 DELEGATION_CERT_INSTALL); 5307 5308 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5309 final long id = Binder.clearCallingIdentity(); 5310 try { 5311 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 5312 try { 5313 IKeyChainService keyChain = keyChainConnection.getService(); 5314 return keyChain.removeKeyPair(alias); 5315 } catch (RemoteException e) { 5316 Log.e(LOG_TAG, "Removing keypair", e); 5317 } finally { 5318 keyChainConnection.close(); 5319 } 5320 } catch (InterruptedException e) { 5321 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 5322 Thread.currentThread().interrupt(); 5323 } finally { 5324 Binder.restoreCallingIdentity(id); 5325 } 5326 return false; 5327 } 5328 5329 private void enforceIsDeviceOwnerOrCertInstallerOfDeviceOwner( 5330 ComponentName who, String callerPackage, int callerUid) throws SecurityException { 5331 if (who == null) { 5332 if (!mOwners.hasDeviceOwner()) { 5333 throw new SecurityException("Not in Device Owner mode."); 5334 } 5335 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 5336 throw new SecurityException("Caller not from device owner user"); 5337 } 5338 if (!isCallerDelegate(callerPackage, DELEGATION_CERT_INSTALL)) { 5339 throw new SecurityException("Caller with uid " + mInjector.binderGetCallingUid() + 5340 "has no permission to generate keys."); 5341 } 5342 } else { 5343 // Caller provided - check it is the device owner. 5344 synchronized (this) { 5345 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5346 } 5347 } 5348 } 5349 5350 @VisibleForTesting 5351 public static int[] translateIdAttestationFlags( 5352 int idAttestationFlags) { 5353 Map<Integer, Integer> idTypeToAttestationFlag = new HashMap(); 5354 idTypeToAttestationFlag.put(ID_TYPE_SERIAL, AttestationUtils.ID_TYPE_SERIAL); 5355 idTypeToAttestationFlag.put(ID_TYPE_IMEI, AttestationUtils.ID_TYPE_IMEI); 5356 idTypeToAttestationFlag.put(ID_TYPE_MEID, AttestationUtils.ID_TYPE_MEID); 5357 5358 int numFlagsSet = Integer.bitCount(idAttestationFlags); 5359 // No flags are set - return null to indicate no device ID attestation information should 5360 // be included in the attestation record. 5361 if (numFlagsSet == 0) { 5362 return null; 5363 } 5364 5365 // If the ID_TYPE_BASE_INFO is set, make sure that a non-null array is returned, even if 5366 // no other flag is set. That will lead to inclusion of general device make data in the 5367 // attestation record, but no specific device identifiers. 5368 if ((idAttestationFlags & ID_TYPE_BASE_INFO) != 0) { 5369 numFlagsSet -= 1; 5370 idAttestationFlags = idAttestationFlags & (~ID_TYPE_BASE_INFO); 5371 } 5372 5373 int[] attestationUtilsFlags = new int[numFlagsSet]; 5374 int i = 0; 5375 for (Integer idType: idTypeToAttestationFlag.keySet()) { 5376 if ((idType & idAttestationFlags) != 0) { 5377 attestationUtilsFlags[i++] = idTypeToAttestationFlag.get(idType); 5378 } 5379 } 5380 5381 return attestationUtilsFlags; 5382 } 5383 5384 @Override 5385 public boolean generateKeyPair(ComponentName who, String callerPackage, String algorithm, 5386 ParcelableKeyGenParameterSpec parcelableKeySpec, 5387 int idAttestationFlags, 5388 KeymasterCertificateChain attestationChain) { 5389 // Get attestation flags, if any. 5390 final int[] attestationUtilsFlags = translateIdAttestationFlags(idAttestationFlags); 5391 final boolean deviceIdAttestationRequired = attestationUtilsFlags != null; 5392 final int callingUid = mInjector.binderGetCallingUid(); 5393 5394 if (deviceIdAttestationRequired && attestationUtilsFlags.length > 0) { 5395 enforceIsDeviceOwnerOrCertInstallerOfDeviceOwner(who, callerPackage, callingUid); 5396 } else { 5397 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5398 DELEGATION_CERT_INSTALL); 5399 } 5400 final KeyGenParameterSpec keySpec = parcelableKeySpec.getSpec(); 5401 final String alias = keySpec.getKeystoreAlias(); 5402 if (TextUtils.isEmpty(alias)) { 5403 throw new IllegalArgumentException("Empty alias provided."); 5404 } 5405 // As the caller will be granted access to the key, ensure no UID was specified, as 5406 // it will not have the desired effect. 5407 if (keySpec.getUid() != KeyStore.UID_SELF) { 5408 Log.e(LOG_TAG, "Only the caller can be granted access to the generated keypair."); 5409 return false; 5410 } 5411 5412 if (deviceIdAttestationRequired && (keySpec.getAttestationChallenge() == null)) { 5413 throw new IllegalArgumentException( 5414 "Requested Device ID attestation but challenge is empty."); 5415 } 5416 5417 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 5418 final long id = mInjector.binderClearCallingIdentity(); 5419 try { 5420 try (KeyChainConnection keyChainConnection = 5421 KeyChain.bindAsUser(mContext, userHandle)) { 5422 IKeyChainService keyChain = keyChainConnection.getService(); 5423 5424 // Copy the provided keySpec, excluding the attestation challenge, which will be 5425 // used later for requesting key attestation record. 5426 final KeyGenParameterSpec noAttestationSpec = 5427 new KeyGenParameterSpec.Builder(keySpec) 5428 .setAttestationChallenge(null) 5429 .build(); 5430 5431 final boolean generationResult = keyChain.generateKeyPair(algorithm, 5432 new ParcelableKeyGenParameterSpec(noAttestationSpec)); 5433 if (!generationResult) { 5434 Log.e(LOG_TAG, "KeyChain failed to generate a keypair."); 5435 return false; 5436 } 5437 5438 // Set a grant for the caller here so that when the client calls 5439 // requestPrivateKey, it will be able to get the key from Keystore. 5440 // Note the use of the calling UID, since the request for the private 5441 // key will come from the client's process, so the grant has to be for 5442 // that UID. 5443 keyChain.setGrant(callingUid, alias, true); 5444 5445 final byte[] attestationChallenge = keySpec.getAttestationChallenge(); 5446 if (attestationChallenge != null) { 5447 final boolean attestationResult = keyChain.attestKey( 5448 alias, attestationChallenge, attestationUtilsFlags, attestationChain); 5449 if (!attestationResult) { 5450 Log.e(LOG_TAG, String.format( 5451 "Attestation for %s failed, deleting key.", alias)); 5452 keyChain.removeKeyPair(alias); 5453 return false; 5454 } 5455 } 5456 return true; 5457 } 5458 } catch (RemoteException e) { 5459 Log.e(LOG_TAG, "KeyChain error while generating a keypair", e); 5460 } catch (InterruptedException e) { 5461 Log.w(LOG_TAG, "Interrupted while generating keypair", e); 5462 Thread.currentThread().interrupt(); 5463 } finally { 5464 mInjector.binderRestoreCallingIdentity(id); 5465 } 5466 return false; 5467 } 5468 5469 @Override 5470 public boolean setKeyPairCertificate(ComponentName who, String callerPackage, String alias, 5471 byte[] cert, byte[] chain, boolean isUserSelectable) { 5472 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5473 DELEGATION_CERT_INSTALL); 5474 5475 final int callingUid = mInjector.binderGetCallingUid(); 5476 final long id = mInjector.binderClearCallingIdentity(); 5477 try (final KeyChainConnection keyChainConnection = 5478 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid))) { 5479 IKeyChainService keyChain = keyChainConnection.getService(); 5480 if (!keyChain.setKeyPairCertificate(alias, cert, chain)) { 5481 return false; 5482 } 5483 keyChain.setUserSelectable(alias, isUserSelectable); 5484 return true; 5485 } catch (InterruptedException e) { 5486 Log.w(LOG_TAG, "Interrupted while setting keypair certificate", e); 5487 Thread.currentThread().interrupt(); 5488 } catch (RemoteException e) { 5489 Log.e(LOG_TAG, "Failed setting keypair certificate", e); 5490 } finally { 5491 mInjector.binderRestoreCallingIdentity(id); 5492 } 5493 return false; 5494 } 5495 5496 @Override 5497 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 5498 final IBinder response) { 5499 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 5500 if (!isCallerWithSystemUid()) { 5501 return; 5502 } 5503 5504 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 5505 // If there is a profile owner, redirect to that; otherwise query the device owner. 5506 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 5507 if (aliasChooser == null && caller.isSystem()) { 5508 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 5509 if (deviceOwnerAdmin != null) { 5510 aliasChooser = deviceOwnerAdmin.info.getComponent(); 5511 } 5512 } 5513 if (aliasChooser == null) { 5514 sendPrivateKeyAliasResponse(null, response); 5515 return; 5516 } 5517 5518 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 5519 intent.setComponent(aliasChooser); 5520 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 5521 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 5522 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 5523 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 5524 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 5525 5526 final long id = mInjector.binderClearCallingIdentity(); 5527 try { 5528 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 5529 @Override 5530 public void onReceive(Context context, Intent intent) { 5531 final String chosenAlias = getResultData(); 5532 sendPrivateKeyAliasResponse(chosenAlias, response); 5533 } 5534 }, null, Activity.RESULT_OK, null, null); 5535 } finally { 5536 mInjector.binderRestoreCallingIdentity(id); 5537 } 5538 } 5539 5540 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 5541 final IKeyChainAliasCallback keyChainAliasResponse = 5542 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 5543 // Send the response. It's OK to do this from the main thread because IKeyChainAliasCallback 5544 // is oneway, which means it won't block if the recipient lives in another process. 5545 try { 5546 keyChainAliasResponse.alias(alias); 5547 } catch (Exception e) { 5548 // Caller could throw RuntimeException or RemoteException back across processes. Catch 5549 // everything just to be sure. 5550 Log.e(LOG_TAG, "error while responding to callback", e); 5551 } 5552 } 5553 5554 /** 5555 * Determine whether DPMS should check if a delegate package is already installed before 5556 * granting it new delegations via {@link #setDelegatedScopes}. 5557 */ 5558 private static boolean shouldCheckIfDelegatePackageIsInstalled(String delegatePackage, 5559 int targetSdk, List<String> scopes) { 5560 // 1) Never skip is installed check from N. 5561 if (targetSdk >= Build.VERSION_CODES.N) { 5562 return true; 5563 } 5564 // 2) Skip if DELEGATION_CERT_INSTALL is the only scope being given. 5565 if (scopes.size() == 1 && scopes.get(0).equals(DELEGATION_CERT_INSTALL)) { 5566 return false; 5567 } 5568 // 3) Skip if all previously granted scopes are being cleared. 5569 if (scopes.isEmpty()) { 5570 return false; 5571 } 5572 // Otherwise it should check that delegatePackage is installed. 5573 return true; 5574 } 5575 5576 /** 5577 * Set the scopes of a device owner or profile owner delegate. 5578 * 5579 * @param who the device owner or profile owner. 5580 * @param delegatePackage the name of the delegate package. 5581 * @param scopes the list of delegation scopes to be given to the delegate package. 5582 */ 5583 @Override 5584 public void setDelegatedScopes(ComponentName who, String delegatePackage, 5585 List<String> scopes) throws SecurityException { 5586 Preconditions.checkNotNull(who, "ComponentName is null"); 5587 Preconditions.checkStringNotEmpty(delegatePackage, "Delegate package is null or empty"); 5588 Preconditions.checkCollectionElementsNotNull(scopes, "Scopes"); 5589 // Remove possible duplicates. 5590 scopes = new ArrayList(new ArraySet(scopes)); 5591 // Ensure given scopes are valid. 5592 if (scopes.retainAll(Arrays.asList(DELEGATIONS))) { 5593 throw new IllegalArgumentException("Unexpected delegation scopes"); 5594 } 5595 5596 // Retrieve the user ID of the calling process. 5597 final int userId = mInjector.userHandleGetCallingUserId(); 5598 synchronized (this) { 5599 // Ensure calling process is device/profile owner. 5600 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5601 // Ensure the delegate is installed (skip this for DELEGATION_CERT_INSTALL in pre-N). 5602 if (shouldCheckIfDelegatePackageIsInstalled(delegatePackage, 5603 getTargetSdk(who.getPackageName(), userId), scopes)) { 5604 // Throw when the delegate package is not installed. 5605 if (!isPackageInstalledForUser(delegatePackage, userId)) { 5606 throw new IllegalArgumentException("Package " + delegatePackage 5607 + " is not installed on the current user"); 5608 } 5609 } 5610 5611 // Set the new delegate in user policies. 5612 final DevicePolicyData policy = getUserData(userId); 5613 if (!scopes.isEmpty()) { 5614 policy.mDelegationMap.put(delegatePackage, new ArrayList<>(scopes)); 5615 } else { 5616 // Remove any delegation info if the given scopes list is empty. 5617 policy.mDelegationMap.remove(delegatePackage); 5618 } 5619 5620 // Notify delegate package of updates. 5621 final Intent intent = new Intent( 5622 DevicePolicyManager.ACTION_APPLICATION_DELEGATION_SCOPES_CHANGED); 5623 // Only call receivers registered with Context#registerReceiver (don’t wake delegate). 5624 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 5625 // Limit components this intent resolves to to the delegate package. 5626 intent.setPackage(delegatePackage); 5627 // Include the list of delegated scopes as an extra. 5628 intent.putStringArrayListExtra(DevicePolicyManager.EXTRA_DELEGATION_SCOPES, 5629 (ArrayList<String>) scopes); 5630 // Send the broadcast. 5631 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 5632 5633 // Persist updates. 5634 saveSettingsLocked(userId); 5635 } 5636 } 5637 5638 /** 5639 * Get the delegation scopes given to a delegate package by a device owner or profile owner. 5640 * 5641 * A DO/PO can get the scopes of any package. A non DO/PO package can get its own scopes by 5642 * passing in {@code null} as the {@code who} parameter and its own name as the 5643 * {@code delegatepackage}. 5644 * 5645 * @param who the device owner or profile owner, or {@code null} if the caller is 5646 * {@code delegatePackage}. 5647 * @param delegatePackage the name of the delegate package whose scopes are to be retrieved. 5648 * @return a list of the delegation scopes currently given to {@code delegatePackage}. 5649 */ 5650 @Override 5651 @NonNull 5652 public List<String> getDelegatedScopes(ComponentName who, 5653 String delegatePackage) throws SecurityException { 5654 Preconditions.checkNotNull(delegatePackage, "Delegate package is null"); 5655 5656 // Retrieve the user ID of the calling process. 5657 final int callingUid = mInjector.binderGetCallingUid(); 5658 final int userId = UserHandle.getUserId(callingUid); 5659 synchronized (this) { 5660 // Ensure calling process is device/profile owner. 5661 if (who != null) { 5662 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5663 // Or ensure calling process is delegatePackage itself. 5664 } else { 5665 int uid = 0; 5666 try { 5667 uid = mInjector.getPackageManager() 5668 .getPackageUidAsUser(delegatePackage, userId); 5669 } catch(NameNotFoundException e) { 5670 } 5671 if (uid != callingUid) { 5672 throw new SecurityException("Caller with uid " + callingUid + " is not " 5673 + delegatePackage); 5674 } 5675 } 5676 final DevicePolicyData policy = getUserData(userId); 5677 // Retrieve the scopes assigned to delegatePackage, or null if no scope was given. 5678 final List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5679 return scopes == null ? Collections.EMPTY_LIST : scopes; 5680 } 5681 } 5682 5683 /** 5684 * Get a list of packages that were given a specific delegation scopes by a device owner or 5685 * profile owner. 5686 * 5687 * @param who the device owner or profile owner. 5688 * @param scope the scope whose delegates are to be retrieved. 5689 * @return a list of the delegate packages currently given the {@code scope} delegation. 5690 */ 5691 @NonNull 5692 public List<String> getDelegatePackages(ComponentName who, String scope) 5693 throws SecurityException { 5694 Preconditions.checkNotNull(who, "ComponentName is null"); 5695 Preconditions.checkNotNull(scope, "Scope is null"); 5696 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5697 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5698 } 5699 5700 // Retrieve the user ID of the calling process. 5701 final int userId = mInjector.userHandleGetCallingUserId(); 5702 synchronized (this) { 5703 // Ensure calling process is device/profile owner. 5704 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5705 final DevicePolicyData policy = getUserData(userId); 5706 5707 // Create a list to hold the resulting delegate packages. 5708 final List<String> delegatePackagesWithScope = new ArrayList<>(); 5709 // Add all delegations containing scope to the result list. 5710 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5711 if (policy.mDelegationMap.valueAt(i).contains(scope)) { 5712 delegatePackagesWithScope.add(policy.mDelegationMap.keyAt(i)); 5713 } 5714 } 5715 return delegatePackagesWithScope; 5716 } 5717 } 5718 5719 /** 5720 * Check whether a caller application has been delegated a given scope via 5721 * {@link #setDelegatedScopes} to access privileged APIs on the behalf of a profile owner or 5722 * device owner. 5723 * <p> 5724 * This is done by checking that {@code callerPackage} was granted {@code scope} delegation and 5725 * then comparing the calling UID with the UID of {@code callerPackage} as reported by 5726 * {@link PackageManager#getPackageUidAsUser}. 5727 * 5728 * @param callerPackage the name of the package that is trying to invoke a function in the DPMS. 5729 * @param scope the delegation scope to be checked. 5730 * @return {@code true} if the calling process is a delegate of {@code scope}. 5731 */ 5732 private boolean isCallerDelegate(String callerPackage, String scope) { 5733 Preconditions.checkNotNull(callerPackage, "callerPackage is null"); 5734 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5735 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5736 } 5737 5738 // Retrieve the UID and user ID of the calling process. 5739 final int callingUid = mInjector.binderGetCallingUid(); 5740 final int userId = UserHandle.getUserId(callingUid); 5741 synchronized (this) { 5742 // Retrieve user policy data. 5743 final DevicePolicyData policy = getUserData(userId); 5744 // Retrieve the list of delegation scopes granted to callerPackage. 5745 final List<String> scopes = policy.mDelegationMap.get(callerPackage); 5746 // Check callingUid only if callerPackage has the required scope delegation. 5747 if (scopes != null && scopes.contains(scope)) { 5748 try { 5749 // Retrieve the expected UID for callerPackage. 5750 final int uid = mInjector.getPackageManager() 5751 .getPackageUidAsUser(callerPackage, userId); 5752 // Return true if the caller is actually callerPackage. 5753 return uid == callingUid; 5754 } catch (NameNotFoundException e) { 5755 // Ignore. 5756 } 5757 } 5758 return false; 5759 } 5760 } 5761 5762 /** 5763 * Throw a security exception if a ComponentName is given and it is not a device/profile owner 5764 * or if the calling process is not a delegate of the given scope. 5765 * 5766 * @param who the device owner of profile owner, or null if {@code callerPackage} is a 5767 * {@code scope} delegate. 5768 * @param callerPackage the name of the calling package. Required if {@code who} is 5769 * {@code null}. 5770 * @param reqPolicy the policy used in the API whose access permission is being checked. 5771 * @param scope the delegation scope corresponding to the API being checked. 5772 * @throws SecurityException if {@code who} is given and is not an owner for {@code reqPolicy}; 5773 * or when {@code who} is {@code null} and {@code callerPackage} is not a delegate 5774 * of {@code scope}. 5775 */ 5776 private void enforceCanManageScope(ComponentName who, String callerPackage, int reqPolicy, 5777 String scope) { 5778 // If a ComponentName is given ensure it is a device or profile owner according to policy. 5779 if (who != null) { 5780 synchronized (this) { 5781 getActiveAdminForCallerLocked(who, reqPolicy); 5782 } 5783 // If no ComponentName is given ensure calling process has scope delegation. 5784 } else if (!isCallerDelegate(callerPackage, scope)) { 5785 throw new SecurityException("Caller with uid " + mInjector.binderGetCallingUid() 5786 + " is not a delegate of scope " + scope + "."); 5787 } 5788 } 5789 5790 /** 5791 * Helper function to preserve delegation behavior pre-O when using the deprecated functions 5792 * {@code #setCertInstallerPackage} and {@code #setApplicationRestrictionsManagingPackage}. 5793 */ 5794 private void setDelegatedScopePreO(ComponentName who, 5795 String delegatePackage, String scope) { 5796 Preconditions.checkNotNull(who, "ComponentName is null"); 5797 5798 final int userId = mInjector.userHandleGetCallingUserId(); 5799 synchronized(this) { 5800 // Ensure calling process is device/profile owner. 5801 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5802 final DevicePolicyData policy = getUserData(userId); 5803 5804 if (delegatePackage != null) { 5805 // Set package as a delegate for scope if it is not already one. 5806 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5807 if (scopes == null) { 5808 scopes = new ArrayList<>(); 5809 } 5810 if (!scopes.contains(scope)) { 5811 scopes.add(scope); 5812 setDelegatedScopes(who, delegatePackage, scopes); 5813 } 5814 } 5815 5816 // Clear any existing scope delegates. 5817 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5818 final String currentPackage = policy.mDelegationMap.keyAt(i); 5819 final List<String> currentScopes = policy.mDelegationMap.valueAt(i); 5820 5821 if (!currentPackage.equals(delegatePackage) && currentScopes.contains(scope)) { 5822 final List<String> newScopes = new ArrayList(currentScopes); 5823 newScopes.remove(scope); 5824 setDelegatedScopes(who, currentPackage, newScopes); 5825 } 5826 } 5827 } 5828 } 5829 5830 @Override 5831 public void setCertInstallerPackage(ComponentName who, String installerPackage) 5832 throws SecurityException { 5833 setDelegatedScopePreO(who, installerPackage, DELEGATION_CERT_INSTALL); 5834 } 5835 5836 @Override 5837 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 5838 final List<String> delegatePackages = getDelegatePackages(who, DELEGATION_CERT_INSTALL); 5839 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 5840 } 5841 5842 /** 5843 * @return {@code true} if the package is installed and set as always-on, {@code false} if it is 5844 * not installed and therefore not available. 5845 * 5846 * @throws SecurityException if the caller is not a profile or device owner. 5847 * @throws UnsupportedOperationException if the package does not support being set as always-on. 5848 */ 5849 @Override 5850 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage, boolean lockdown) 5851 throws SecurityException { 5852 enforceProfileOrDeviceOwner(admin); 5853 5854 final int userId = mInjector.userHandleGetCallingUserId(); 5855 final long token = mInjector.binderClearCallingIdentity(); 5856 try { 5857 if (vpnPackage != null && !isPackageInstalledForUser(vpnPackage, userId)) { 5858 return false; 5859 } 5860 ConnectivityManager connectivityManager = (ConnectivityManager) 5861 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5862 if (!connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage, lockdown)) { 5863 throw new UnsupportedOperationException(); 5864 } 5865 } finally { 5866 mInjector.binderRestoreCallingIdentity(token); 5867 } 5868 return true; 5869 } 5870 5871 @Override 5872 public String getAlwaysOnVpnPackage(ComponentName admin) 5873 throws SecurityException { 5874 enforceProfileOrDeviceOwner(admin); 5875 5876 final int userId = mInjector.userHandleGetCallingUserId(); 5877 final long token = mInjector.binderClearCallingIdentity(); 5878 try{ 5879 ConnectivityManager connectivityManager = (ConnectivityManager) 5880 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5881 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 5882 } finally { 5883 mInjector.binderRestoreCallingIdentity(token); 5884 } 5885 } 5886 5887 private void forceWipeDeviceNoLock(boolean wipeExtRequested, String reason, boolean wipeEuicc) { 5888 wtfIfInLock(); 5889 5890 if (wipeExtRequested) { 5891 StorageManager sm = (StorageManager) mContext.getSystemService( 5892 Context.STORAGE_SERVICE); 5893 sm.wipeAdoptableDisks(); 5894 } 5895 try { 5896 mInjector.recoverySystemRebootWipeUserData( 5897 /*shutdown=*/ false, reason, /*force=*/ true, /*wipeEuicc=*/ wipeEuicc); 5898 } catch (IOException | SecurityException e) { 5899 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 5900 } 5901 } 5902 5903 private void forceWipeUser(int userId, String wipeReasonForUser) { 5904 try { 5905 IActivityManager am = mInjector.getIActivityManager(); 5906 if (am.getCurrentUser().id == userId) { 5907 am.switchUser(UserHandle.USER_SYSTEM); 5908 } 5909 5910 boolean userRemoved = mUserManagerInternal.removeUserEvenWhenDisallowed(userId); 5911 if (!userRemoved) { 5912 Slog.w(LOG_TAG, "Couldn't remove user " + userId); 5913 } else if (isManagedProfile(userId)) { 5914 sendWipeProfileNotification(wipeReasonForUser); 5915 } 5916 } catch (RemoteException re) { 5917 // Shouldn't happen 5918 } 5919 } 5920 5921 @Override 5922 public void wipeDataWithReason(int flags, String wipeReasonForUser) { 5923 if (!mHasFeature) { 5924 return; 5925 } 5926 Preconditions.checkStringNotEmpty(wipeReasonForUser, "wipeReasonForUser is null or empty"); 5927 enforceFullCrossUsersPermission(mInjector.userHandleGetCallingUserId()); 5928 5929 final ActiveAdmin admin; 5930 synchronized (this) { 5931 admin = getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_WIPE_DATA); 5932 } 5933 String internalReason = "DevicePolicyManager.wipeDataWithReason() from " 5934 + admin.info.getComponent().flattenToShortString(); 5935 wipeDataNoLock( 5936 admin.info.getComponent(), flags, internalReason, wipeReasonForUser, 5937 admin.getUserHandle().getIdentifier()); 5938 } 5939 5940 private void wipeDataNoLock(ComponentName admin, int flags, String internalReason, 5941 String wipeReasonForUser, int userId) { 5942 wtfIfInLock(); 5943 5944 long ident = mInjector.binderClearCallingIdentity(); 5945 try { 5946 // First check whether the admin is allowed to wipe the device/user/profile. 5947 final String restriction; 5948 if (userId == UserHandle.USER_SYSTEM) { 5949 restriction = UserManager.DISALLOW_FACTORY_RESET; 5950 } else if (isManagedProfile(userId)) { 5951 restriction = UserManager.DISALLOW_REMOVE_MANAGED_PROFILE; 5952 } else { 5953 restriction = UserManager.DISALLOW_REMOVE_USER; 5954 } 5955 if (isAdminAffectedByRestriction(admin, restriction, userId)) { 5956 throw new SecurityException("Cannot wipe data. " + restriction 5957 + " restriction is set for user " + userId); 5958 } 5959 5960 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 5961 if (!isDeviceOwner(admin, userId)) { 5962 throw new SecurityException( 5963 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 5964 } 5965 PersistentDataBlockManager manager = (PersistentDataBlockManager) 5966 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 5967 if (manager != null) { 5968 manager.wipe(); 5969 } 5970 } 5971 5972 // TODO If split user is enabled and the device owner is set in the primary user 5973 // (rather than system), we should probably trigger factory reset. Current code just 5974 // removes that user (but still clears FRP...) 5975 if (userId == UserHandle.USER_SYSTEM) { 5976 forceWipeDeviceNoLock(/*wipeExtRequested=*/ ( 5977 flags & WIPE_EXTERNAL_STORAGE) != 0, 5978 internalReason, 5979 /*wipeEuicc=*/ (flags & WIPE_EUICC) != 0); 5980 } else { 5981 forceWipeUser(userId, wipeReasonForUser); 5982 } 5983 } finally { 5984 mInjector.binderRestoreCallingIdentity(ident); 5985 } 5986 } 5987 5988 private void sendWipeProfileNotification(String wipeReasonForUser) { 5989 Notification notification = 5990 new Notification.Builder(mContext, SystemNotificationChannels.DEVICE_ADMIN) 5991 .setSmallIcon(android.R.drawable.stat_sys_warning) 5992 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 5993 .setContentText(wipeReasonForUser) 5994 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 5995 .setStyle(new Notification.BigTextStyle().bigText(wipeReasonForUser)) 5996 .build(); 5997 mInjector.getNotificationManager().notify(SystemMessage.NOTE_PROFILE_WIPED, notification); 5998 } 5999 6000 private void clearWipeProfileNotification() { 6001 mInjector.getNotificationManager().cancel(SystemMessage.NOTE_PROFILE_WIPED); 6002 } 6003 6004 @Override 6005 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 6006 if (!mHasFeature) { 6007 return; 6008 } 6009 enforceFullCrossUsersPermission(userHandle); 6010 mContext.enforceCallingOrSelfPermission( 6011 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6012 6013 synchronized (this) { 6014 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 6015 if (admin == null) { 6016 result.sendResult(null); 6017 return; 6018 } 6019 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 6020 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 6021 intent.setComponent(admin.info.getComponent()); 6022 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 6023 null, new BroadcastReceiver() { 6024 @Override 6025 public void onReceive(Context context, Intent intent) { 6026 result.sendResult(getResultExtras(false)); 6027 } 6028 }, null, Activity.RESULT_OK, null, null); 6029 } 6030 } 6031 6032 /** 6033 * Notify DPMS regarding the metric of the current password. This happens when the user changes 6034 * the password, but also when the user just unlocks the keyguard. In comparison, 6035 * reportPasswordChanged() is only called when the user changes the password. 6036 */ 6037 @Override 6038 public void setActivePasswordState(PasswordMetrics metrics, int userHandle) { 6039 if (!mHasFeature) { 6040 return; 6041 } 6042 enforceFullCrossUsersPermission(userHandle); 6043 mContext.enforceCallingOrSelfPermission( 6044 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6045 6046 // If the managed profile doesn't have a separate password, set the metrics to default 6047 if (isManagedProfile(userHandle) && !isSeparateProfileChallengeEnabled(userHandle)) { 6048 metrics = new PasswordMetrics(); 6049 } 6050 6051 validateQualityConstant(metrics.quality); 6052 DevicePolicyData policy = getUserData(userHandle); 6053 synchronized (this) { 6054 policy.mActivePasswordMetrics = metrics; 6055 policy.mPasswordStateHasBeenSetSinceBoot = true; 6056 } 6057 } 6058 6059 @Override 6060 public void reportPasswordChanged(@UserIdInt int userId) { 6061 if (!mHasFeature) { 6062 return; 6063 } 6064 enforceFullCrossUsersPermission(userId); 6065 6066 // Managed Profile password can only be changed when it has a separate challenge. 6067 if (!isSeparateProfileChallengeEnabled(userId)) { 6068 enforceNotManagedProfile(userId, "set the active password"); 6069 } 6070 6071 mContext.enforceCallingOrSelfPermission( 6072 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6073 6074 DevicePolicyData policy = getUserData(userId); 6075 6076 long ident = mInjector.binderClearCallingIdentity(); 6077 try { 6078 synchronized (this) { 6079 policy.mFailedPasswordAttempts = 0; 6080 updatePasswordValidityCheckpointLocked(userId); 6081 saveSettingsLocked(userId); 6082 updatePasswordExpirationsLocked(userId); 6083 setExpirationAlarmCheckLocked(mContext, userId, /* parent */ false); 6084 6085 // Send a broadcast to each profile using this password as its primary unlock. 6086 sendAdminCommandForLockscreenPoliciesLocked( 6087 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 6088 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userId); 6089 } 6090 removeCaApprovalsIfNeeded(userId); 6091 } finally { 6092 mInjector.binderRestoreCallingIdentity(ident); 6093 } 6094 } 6095 6096 /** 6097 * Called any time the device password is updated. Resets all password expiration clocks. 6098 */ 6099 private void updatePasswordExpirationsLocked(int userHandle) { 6100 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 6101 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 6102 userHandle, /* parent */ false); 6103 final int N = admins.size(); 6104 for (int i = 0; i < N; i++) { 6105 ActiveAdmin admin = admins.get(i); 6106 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 6107 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 6108 long timeout = admin.passwordExpirationTimeout; 6109 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 6110 admin.passwordExpirationDate = expiration; 6111 } 6112 } 6113 for (int affectedUserId : affectedUserIds) { 6114 saveSettingsLocked(affectedUserId); 6115 } 6116 } 6117 6118 @Override 6119 public void reportFailedPasswordAttempt(int userHandle) { 6120 enforceFullCrossUsersPermission(userHandle); 6121 if (!isSeparateProfileChallengeEnabled(userHandle)) { 6122 enforceNotManagedProfile(userHandle, 6123 "report failed password attempt if separate profile challenge is not in place"); 6124 } 6125 mContext.enforceCallingOrSelfPermission( 6126 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6127 6128 boolean wipeData = false; 6129 ActiveAdmin strictestAdmin = null; 6130 final long ident = mInjector.binderClearCallingIdentity(); 6131 try { 6132 synchronized (this) { 6133 DevicePolicyData policy = getUserData(userHandle); 6134 policy.mFailedPasswordAttempts++; 6135 saveSettingsLocked(userHandle); 6136 if (mHasFeature) { 6137 strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 6138 userHandle, /* parent */ false); 6139 int max = strictestAdmin != null 6140 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 6141 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 6142 wipeData = true; 6143 } 6144 6145 sendAdminCommandForLockscreenPoliciesLocked( 6146 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 6147 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 6148 } 6149 } 6150 } finally { 6151 mInjector.binderRestoreCallingIdentity(ident); 6152 } 6153 6154 if (wipeData && strictestAdmin != null) { 6155 final int userId = strictestAdmin.getUserHandle().getIdentifier(); 6156 Slog.i(LOG_TAG, "Max failed password attempts policy reached for admin: " 6157 + strictestAdmin.info.getComponent().flattenToShortString() 6158 + ". Calling wipeData for user " + userId); 6159 6160 // Attempt to wipe the device/user/profile associated with the admin, as if the 6161 // admin had called wipeData(). That way we can check whether the admin is actually 6162 // allowed to wipe the device (e.g. a regular device admin shouldn't be able to wipe the 6163 // device if the device owner has set DISALLOW_FACTORY_RESET, but the DO should be 6164 // able to do so). 6165 // IMPORTANT: Call without holding the lock to prevent deadlock. 6166 try { 6167 String wipeReasonForUser = mContext.getString( 6168 R.string.work_profile_deleted_reason_maximum_password_failure); 6169 wipeDataNoLock(strictestAdmin.info.getComponent(), 6170 /*flags=*/ 0, 6171 /*reason=*/ "reportFailedPasswordAttempt()", 6172 wipeReasonForUser, 6173 userId); 6174 } catch (SecurityException e) { 6175 Slog.w(LOG_TAG, "Failed to wipe user " + userId 6176 + " after max failed password attempts reached.", e); 6177 } 6178 } 6179 6180 if (mInjector.securityLogIsLoggingEnabled()) { 6181 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, 6182 /*result*/ 0, 6183 /*method strength*/ 1); 6184 } 6185 } 6186 6187 @Override 6188 public void reportSuccessfulPasswordAttempt(int userHandle) { 6189 enforceFullCrossUsersPermission(userHandle); 6190 mContext.enforceCallingOrSelfPermission( 6191 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6192 6193 synchronized (this) { 6194 DevicePolicyData policy = getUserData(userHandle); 6195 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 6196 long ident = mInjector.binderClearCallingIdentity(); 6197 try { 6198 policy.mFailedPasswordAttempts = 0; 6199 policy.mPasswordOwner = -1; 6200 saveSettingsLocked(userHandle); 6201 if (mHasFeature) { 6202 sendAdminCommandForLockscreenPoliciesLocked( 6203 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 6204 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 6205 } 6206 } finally { 6207 mInjector.binderRestoreCallingIdentity(ident); 6208 } 6209 } 6210 } 6211 6212 if (mInjector.securityLogIsLoggingEnabled()) { 6213 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 6214 /*method strength*/ 1); 6215 } 6216 } 6217 6218 @Override 6219 public void reportFailedFingerprintAttempt(int userHandle) { 6220 enforceFullCrossUsersPermission(userHandle); 6221 mContext.enforceCallingOrSelfPermission( 6222 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6223 if (mInjector.securityLogIsLoggingEnabled()) { 6224 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 6225 /*method strength*/ 0); 6226 } 6227 } 6228 6229 @Override 6230 public void reportSuccessfulFingerprintAttempt(int userHandle) { 6231 enforceFullCrossUsersPermission(userHandle); 6232 mContext.enforceCallingOrSelfPermission( 6233 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6234 if (mInjector.securityLogIsLoggingEnabled()) { 6235 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 6236 /*method strength*/ 0); 6237 } 6238 } 6239 6240 @Override 6241 public void reportKeyguardDismissed(int userHandle) { 6242 enforceFullCrossUsersPermission(userHandle); 6243 mContext.enforceCallingOrSelfPermission( 6244 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6245 6246 if (mInjector.securityLogIsLoggingEnabled()) { 6247 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 6248 } 6249 } 6250 6251 @Override 6252 public void reportKeyguardSecured(int userHandle) { 6253 enforceFullCrossUsersPermission(userHandle); 6254 mContext.enforceCallingOrSelfPermission( 6255 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6256 6257 if (mInjector.securityLogIsLoggingEnabled()) { 6258 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 6259 } 6260 } 6261 6262 @Override 6263 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 6264 String exclusionList) { 6265 if (!mHasFeature) { 6266 return null; 6267 } 6268 synchronized(this) { 6269 Preconditions.checkNotNull(who, "ComponentName is null"); 6270 6271 // Only check if system user has set global proxy. We don't allow other users to set it. 6272 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 6273 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6274 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 6275 6276 // Scan through active admins and find if anyone has already 6277 // set the global proxy. 6278 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 6279 for (ComponentName component : compSet) { 6280 ActiveAdmin ap = policy.mAdminMap.get(component); 6281 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 6282 // Another admin already sets the global proxy 6283 // Return it to the caller. 6284 return component; 6285 } 6286 } 6287 6288 // If the user is not system, don't set the global proxy. Fail silently. 6289 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 6290 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 6291 + UserHandle.getCallingUserId() + " is not permitted."); 6292 return null; 6293 } 6294 if (proxySpec == null) { 6295 admin.specifiesGlobalProxy = false; 6296 admin.globalProxySpec = null; 6297 admin.globalProxyExclusionList = null; 6298 } else { 6299 6300 admin.specifiesGlobalProxy = true; 6301 admin.globalProxySpec = proxySpec; 6302 admin.globalProxyExclusionList = exclusionList; 6303 } 6304 6305 // Reset the global proxy accordingly 6306 // Do this using system permissions, as apps cannot write to secure settings 6307 long origId = mInjector.binderClearCallingIdentity(); 6308 try { 6309 resetGlobalProxyLocked(policy); 6310 } finally { 6311 mInjector.binderRestoreCallingIdentity(origId); 6312 } 6313 return null; 6314 } 6315 } 6316 6317 @Override 6318 public ComponentName getGlobalProxyAdmin(int userHandle) { 6319 if (!mHasFeature) { 6320 return null; 6321 } 6322 enforceFullCrossUsersPermission(userHandle); 6323 synchronized(this) { 6324 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 6325 // Scan through active admins and find if anyone has already 6326 // set the global proxy. 6327 final int N = policy.mAdminList.size(); 6328 for (int i = 0; i < N; i++) { 6329 ActiveAdmin ap = policy.mAdminList.get(i); 6330 if (ap.specifiesGlobalProxy) { 6331 // Device admin sets the global proxy 6332 // Return it to the caller. 6333 return ap.info.getComponent(); 6334 } 6335 } 6336 } 6337 // No device admin sets the global proxy. 6338 return null; 6339 } 6340 6341 @Override 6342 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 6343 synchronized (this) { 6344 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6345 } 6346 long token = mInjector.binderClearCallingIdentity(); 6347 try { 6348 ConnectivityManager connectivityManager = (ConnectivityManager) 6349 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 6350 connectivityManager.setGlobalProxy(proxyInfo); 6351 } finally { 6352 mInjector.binderRestoreCallingIdentity(token); 6353 } 6354 } 6355 6356 private void resetGlobalProxyLocked(DevicePolicyData policy) { 6357 final int N = policy.mAdminList.size(); 6358 for (int i = 0; i < N; i++) { 6359 ActiveAdmin ap = policy.mAdminList.get(i); 6360 if (ap.specifiesGlobalProxy) { 6361 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 6362 return; 6363 } 6364 } 6365 // No device admins defining global proxies - reset global proxy settings to none 6366 saveGlobalProxyLocked(null, null); 6367 } 6368 6369 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 6370 if (exclusionList == null) { 6371 exclusionList = ""; 6372 } 6373 if (proxySpec == null) { 6374 proxySpec = ""; 6375 } 6376 // Remove white spaces 6377 proxySpec = proxySpec.trim(); 6378 String data[] = proxySpec.split(":"); 6379 int proxyPort = 8080; 6380 if (data.length > 1) { 6381 try { 6382 proxyPort = Integer.parseInt(data[1]); 6383 } catch (NumberFormatException e) {} 6384 } 6385 exclusionList = exclusionList.trim(); 6386 6387 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 6388 if (!proxyProperties.isValid()) { 6389 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 6390 return; 6391 } 6392 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 6393 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 6394 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 6395 exclusionList); 6396 } 6397 6398 /** 6399 * Set the storage encryption request for a single admin. Returns the new total request 6400 * status (for all admins). 6401 */ 6402 @Override 6403 public int setStorageEncryption(ComponentName who, boolean encrypt) { 6404 if (!mHasFeature) { 6405 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6406 } 6407 Preconditions.checkNotNull(who, "ComponentName is null"); 6408 final int userHandle = UserHandle.getCallingUserId(); 6409 synchronized (this) { 6410 // Check for permissions 6411 // Only system user can set storage encryption 6412 if (userHandle != UserHandle.USER_SYSTEM) { 6413 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 6414 + UserHandle.getCallingUserId() + " is not permitted."); 6415 return 0; 6416 } 6417 6418 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6419 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 6420 6421 // Quick exit: If the filesystem does not support encryption, we can exit early. 6422 if (!isEncryptionSupported()) { 6423 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6424 } 6425 6426 // (1) Record the value for the admin so it's sticky 6427 if (ap.encryptionRequested != encrypt) { 6428 ap.encryptionRequested = encrypt; 6429 saveSettingsLocked(userHandle); 6430 } 6431 6432 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 6433 // (2) Compute "max" for all admins 6434 boolean newRequested = false; 6435 final int N = policy.mAdminList.size(); 6436 for (int i = 0; i < N; i++) { 6437 newRequested |= policy.mAdminList.get(i).encryptionRequested; 6438 } 6439 6440 // Notify OS of new request 6441 setEncryptionRequested(newRequested); 6442 6443 // Return the new global request status 6444 return newRequested 6445 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 6446 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 6447 } 6448 } 6449 6450 /** 6451 * Get the current storage encryption request status for a given admin, or aggregate of all 6452 * active admins. 6453 */ 6454 @Override 6455 public boolean getStorageEncryption(ComponentName who, int userHandle) { 6456 if (!mHasFeature) { 6457 return false; 6458 } 6459 enforceFullCrossUsersPermission(userHandle); 6460 synchronized (this) { 6461 // Check for permissions if a particular caller is specified 6462 if (who != null) { 6463 // When checking for a single caller, status is based on caller's request 6464 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 6465 return ap != null ? ap.encryptionRequested : false; 6466 } 6467 6468 // If no particular caller is specified, return the aggregate set of requests. 6469 // This is short circuited by returning true on the first hit. 6470 DevicePolicyData policy = getUserData(userHandle); 6471 final int N = policy.mAdminList.size(); 6472 for (int i = 0; i < N; i++) { 6473 if (policy.mAdminList.get(i).encryptionRequested) { 6474 return true; 6475 } 6476 } 6477 return false; 6478 } 6479 } 6480 6481 /** 6482 * Get the current encryption status of the device. 6483 */ 6484 @Override 6485 public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) { 6486 if (!mHasFeature) { 6487 // Ok to return current status. 6488 } 6489 enforceFullCrossUsersPermission(userHandle); 6490 6491 // It's not critical here, but let's make sure the package name is correct, in case 6492 // we start using it for different purposes. 6493 ensureCallerPackage(callerPackage); 6494 6495 final ApplicationInfo ai; 6496 try { 6497 ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle); 6498 } catch (RemoteException e) { 6499 throw new SecurityException(e); 6500 } 6501 6502 boolean legacyApp = false; 6503 if (ai.targetSdkVersion <= Build.VERSION_CODES.M) { 6504 legacyApp = true; 6505 } 6506 6507 final int rawStatus = getEncryptionStatus(); 6508 if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) { 6509 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 6510 } 6511 return rawStatus; 6512 } 6513 6514 /** 6515 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 6516 */ 6517 private boolean isEncryptionSupported() { 6518 // Note, this can be implemented as 6519 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6520 // But is provided as a separate internal method if there's a faster way to do a 6521 // simple check for supported-or-not. 6522 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6523 } 6524 6525 /** 6526 * Hook to low-levels: Reporting the current status of encryption. 6527 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 6528 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 6529 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, 6530 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or 6531 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 6532 */ 6533 private int getEncryptionStatus() { 6534 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 6535 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER; 6536 } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) { 6537 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 6538 } else if (mInjector.storageManagerIsEncrypted()) { 6539 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 6540 } else if (mInjector.storageManagerIsEncryptable()) { 6541 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 6542 } else { 6543 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6544 } 6545 } 6546 6547 /** 6548 * Hook to low-levels: If needed, record the new admin setting for encryption. 6549 */ 6550 private void setEncryptionRequested(boolean encrypt) { 6551 } 6552 6553 /** 6554 * Set whether the screen capture is disabled for the user managed by the specified admin. 6555 */ 6556 @Override 6557 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 6558 if (!mHasFeature) { 6559 return; 6560 } 6561 Preconditions.checkNotNull(who, "ComponentName is null"); 6562 final int userHandle = UserHandle.getCallingUserId(); 6563 synchronized (this) { 6564 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6565 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6566 if (ap.disableScreenCapture != disabled) { 6567 ap.disableScreenCapture = disabled; 6568 saveSettingsLocked(userHandle); 6569 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 6570 } 6571 } 6572 } 6573 6574 /** 6575 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 6576 * active admin (if given admin is null). 6577 */ 6578 @Override 6579 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 6580 if (!mHasFeature) { 6581 return false; 6582 } 6583 synchronized (this) { 6584 if (who != null) { 6585 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6586 return (admin != null) ? admin.disableScreenCapture : false; 6587 } 6588 6589 DevicePolicyData policy = getUserData(userHandle); 6590 final int N = policy.mAdminList.size(); 6591 for (int i = 0; i < N; i++) { 6592 ActiveAdmin admin = policy.mAdminList.get(i); 6593 if (admin.disableScreenCapture) { 6594 return true; 6595 } 6596 } 6597 return false; 6598 } 6599 } 6600 6601 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 6602 final boolean disabled) { 6603 mHandler.post(new Runnable() { 6604 @Override 6605 public void run() { 6606 try { 6607 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 6608 } catch (RemoteException e) { 6609 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 6610 } 6611 } 6612 }); 6613 } 6614 6615 /** 6616 * Set whether auto time is required by the specified admin (must be device or profile owner). 6617 */ 6618 @Override 6619 public void setAutoTimeRequired(ComponentName who, boolean required) { 6620 if (!mHasFeature) { 6621 return; 6622 } 6623 Preconditions.checkNotNull(who, "ComponentName is null"); 6624 final int userHandle = UserHandle.getCallingUserId(); 6625 synchronized (this) { 6626 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6627 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6628 if (admin.requireAutoTime != required) { 6629 admin.requireAutoTime = required; 6630 saveSettingsLocked(userHandle); 6631 } 6632 } 6633 6634 // Turn AUTO_TIME on in settings if it is required 6635 if (required) { 6636 long ident = mInjector.binderClearCallingIdentity(); 6637 try { 6638 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 6639 } finally { 6640 mInjector.binderRestoreCallingIdentity(ident); 6641 } 6642 } 6643 } 6644 6645 /** 6646 * Returns whether or not auto time is required by the device owner or any profile owner. 6647 */ 6648 @Override 6649 public boolean getAutoTimeRequired() { 6650 if (!mHasFeature) { 6651 return false; 6652 } 6653 synchronized (this) { 6654 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6655 if (deviceOwner != null && deviceOwner.requireAutoTime) { 6656 // If the device owner enforces auto time, we don't need to check the PO's 6657 return true; 6658 } 6659 6660 // Now check to see if any profile owner on any user enforces auto time 6661 for (Integer userId : mOwners.getProfileOwnerKeys()) { 6662 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 6663 if (profileOwner != null && profileOwner.requireAutoTime) { 6664 return true; 6665 } 6666 } 6667 6668 return false; 6669 } 6670 } 6671 6672 @Override 6673 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 6674 if (!mHasFeature) { 6675 return; 6676 } 6677 Preconditions.checkNotNull(who, "ComponentName is null"); 6678 // Allow setting this policy to true only if there is a split system user. 6679 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 6680 throw new UnsupportedOperationException( 6681 "Cannot force ephemeral users on systems without split system user."); 6682 } 6683 boolean removeAllUsers = false; 6684 synchronized (this) { 6685 final ActiveAdmin deviceOwner = 6686 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6687 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 6688 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 6689 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 6690 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 6691 removeAllUsers = forceEphemeralUsers; 6692 } 6693 } 6694 if (removeAllUsers) { 6695 long identitity = mInjector.binderClearCallingIdentity(); 6696 try { 6697 mUserManagerInternal.removeAllUsers(); 6698 } finally { 6699 mInjector.binderRestoreCallingIdentity(identitity); 6700 } 6701 } 6702 } 6703 6704 @Override 6705 public boolean getForceEphemeralUsers(ComponentName who) { 6706 if (!mHasFeature) { 6707 return false; 6708 } 6709 Preconditions.checkNotNull(who, "ComponentName is null"); 6710 synchronized (this) { 6711 final ActiveAdmin deviceOwner = 6712 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6713 return deviceOwner.forceEphemeralUsers; 6714 } 6715 } 6716 6717 private void ensureDeviceOwnerAndAllUsersAffiliated(ComponentName who) throws SecurityException { 6718 synchronized (this) { 6719 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6720 if (!areAllUsersAffiliatedWithDeviceLocked()) { 6721 throw new SecurityException("Not all users are affiliated."); 6722 } 6723 } 6724 } 6725 6726 @Override 6727 public boolean requestBugreport(ComponentName who) { 6728 if (!mHasFeature) { 6729 return false; 6730 } 6731 Preconditions.checkNotNull(who, "ComponentName is null"); 6732 6733 // TODO: If an unaffiliated user is removed, the admin will be able to request a bugreport 6734 // which could still contain data related to that user. Should we disallow that, e.g. until 6735 // next boot? Might not be needed given that this still requires user consent. 6736 ensureDeviceOwnerAndAllUsersAffiliated(who); 6737 6738 if (mRemoteBugreportServiceIsActive.get() 6739 || (getDeviceOwnerRemoteBugreportUri() != null)) { 6740 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 6741 return false; 6742 } 6743 6744 final long currentTime = System.currentTimeMillis(); 6745 synchronized (this) { 6746 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 6747 if (currentTime > policyData.mLastBugReportRequestTime) { 6748 policyData.mLastBugReportRequestTime = currentTime; 6749 saveSettingsLocked(UserHandle.USER_SYSTEM); 6750 } 6751 } 6752 6753 final long callingIdentity = mInjector.binderClearCallingIdentity(); 6754 try { 6755 mInjector.getIActivityManager().requestBugReport( 6756 ActivityManager.BUGREPORT_OPTION_REMOTE); 6757 6758 mRemoteBugreportServiceIsActive.set(true); 6759 mRemoteBugreportSharingAccepted.set(false); 6760 registerRemoteBugreportReceivers(); 6761 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 6762 RemoteBugreportUtils.NOTIFICATION_ID, 6763 RemoteBugreportUtils.buildNotification(mContext, 6764 DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL); 6765 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 6766 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 6767 return true; 6768 } catch (RemoteException re) { 6769 // should never happen 6770 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 6771 return false; 6772 } finally { 6773 mInjector.binderRestoreCallingIdentity(callingIdentity); 6774 } 6775 } 6776 6777 void sendDeviceOwnerCommand(String action, Bundle extras) { 6778 int deviceOwnerUserId; 6779 ComponentName deviceOwnerComponent; 6780 synchronized (this) { 6781 deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 6782 deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 6783 } 6784 sendActiveAdminCommand(action, extras, deviceOwnerUserId, 6785 deviceOwnerComponent); 6786 } 6787 6788 private void sendProfileOwnerCommand(String action, Bundle extras, int userHandle) { 6789 sendActiveAdminCommand(action, extras, userHandle, 6790 mOwners.getProfileOwnerComponent(userHandle)); 6791 } 6792 6793 private void sendActiveAdminCommand(String action, Bundle extras, 6794 int userHandle, ComponentName receiverComponent) { 6795 final Intent intent = new Intent(action); 6796 intent.setComponent(receiverComponent); 6797 if (extras != null) { 6798 intent.putExtras(extras); 6799 } 6800 mContext.sendBroadcastAsUser(intent, UserHandle.of(userHandle)); 6801 } 6802 6803 private void sendOwnerChangedBroadcast(String broadcast, int userId) { 6804 final Intent intent = new Intent(broadcast) 6805 .addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); 6806 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 6807 } 6808 6809 private synchronized String getDeviceOwnerRemoteBugreportUri() { 6810 return mOwners.getDeviceOwnerRemoteBugreportUri(); 6811 } 6812 6813 private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 6814 String bugreportHash) { 6815 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 6816 } 6817 6818 private void registerRemoteBugreportReceivers() { 6819 try { 6820 IntentFilter filterFinished = new IntentFilter( 6821 DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH, 6822 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6823 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 6824 } catch (IntentFilter.MalformedMimeTypeException e) { 6825 // should never happen, as setting a constant 6826 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 6827 } 6828 IntentFilter filterConsent = new IntentFilter(); 6829 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 6830 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 6831 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 6832 } 6833 6834 private void onBugreportFinished(Intent intent) { 6835 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6836 mRemoteBugreportServiceIsActive.set(false); 6837 Uri bugreportUri = intent.getData(); 6838 String bugreportUriString = null; 6839 if (bugreportUri != null) { 6840 bugreportUriString = bugreportUri.toString(); 6841 } 6842 String bugreportHash = intent.getStringExtra( 6843 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH); 6844 if (mRemoteBugreportSharingAccepted.get()) { 6845 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6846 mInjector.getNotificationManager().cancel(LOG_TAG, 6847 RemoteBugreportUtils.NOTIFICATION_ID); 6848 } else { 6849 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 6850 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6851 RemoteBugreportUtils.buildNotification(mContext, 6852 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 6853 UserHandle.ALL); 6854 } 6855 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6856 } 6857 6858 private void onBugreportFailed() { 6859 mRemoteBugreportServiceIsActive.set(false); 6860 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6861 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6862 mRemoteBugreportSharingAccepted.set(false); 6863 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6864 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 6865 Bundle extras = new Bundle(); 6866 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6867 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 6868 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6869 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 6870 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6871 } 6872 6873 private void onBugreportSharingAccepted() { 6874 mRemoteBugreportSharingAccepted.set(true); 6875 String bugreportUriString = null; 6876 String bugreportHash = null; 6877 synchronized (this) { 6878 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 6879 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 6880 } 6881 if (bugreportUriString != null) { 6882 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6883 } else if (mRemoteBugreportServiceIsActive.get()) { 6884 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6885 RemoteBugreportUtils.buildNotification(mContext, 6886 DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED), 6887 UserHandle.ALL); 6888 } 6889 } 6890 6891 private void onBugreportSharingDeclined() { 6892 if (mRemoteBugreportServiceIsActive.get()) { 6893 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6894 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6895 mRemoteBugreportServiceIsActive.set(false); 6896 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6897 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6898 } 6899 mRemoteBugreportSharingAccepted.set(false); 6900 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6901 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 6902 } 6903 6904 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 6905 String bugreportHash) { 6906 ParcelFileDescriptor pfd = null; 6907 try { 6908 if (bugreportUriString == null) { 6909 throw new FileNotFoundException(); 6910 } 6911 Uri bugreportUri = Uri.parse(bugreportUriString); 6912 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 6913 6914 synchronized (this) { 6915 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 6916 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6917 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6918 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 6919 intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 6920 6921 LocalServices.getService(ActivityManagerInternal.class) 6922 .grantUriPermissionFromIntent(Process.SHELL_UID, 6923 mOwners.getDeviceOwnerComponent().getPackageName(), 6924 intent, mOwners.getDeviceOwnerUserId()); 6925 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6926 } 6927 } catch (FileNotFoundException e) { 6928 Bundle extras = new Bundle(); 6929 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6930 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 6931 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6932 } finally { 6933 try { 6934 if (pfd != null) { 6935 pfd.close(); 6936 } 6937 } catch (IOException ex) { 6938 // Ignore 6939 } 6940 mRemoteBugreportSharingAccepted.set(false); 6941 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6942 } 6943 } 6944 6945 /** 6946 * Disables all device cameras according to the specified admin. 6947 */ 6948 @Override 6949 public void setCameraDisabled(ComponentName who, boolean disabled) { 6950 if (!mHasFeature) { 6951 return; 6952 } 6953 Preconditions.checkNotNull(who, "ComponentName is null"); 6954 final int userHandle = mInjector.userHandleGetCallingUserId(); 6955 synchronized (this) { 6956 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6957 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 6958 if (ap.disableCamera != disabled) { 6959 ap.disableCamera = disabled; 6960 saveSettingsLocked(userHandle); 6961 } 6962 } 6963 // Tell the user manager that the restrictions have changed. 6964 pushUserRestrictions(userHandle); 6965 } 6966 6967 /** 6968 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 6969 * active admins. 6970 */ 6971 @Override 6972 public boolean getCameraDisabled(ComponentName who, int userHandle) { 6973 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 6974 } 6975 6976 private boolean getCameraDisabled(ComponentName who, int userHandle, 6977 boolean mergeDeviceOwnerRestriction) { 6978 if (!mHasFeature) { 6979 return false; 6980 } 6981 synchronized (this) { 6982 if (who != null) { 6983 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6984 return (admin != null) ? admin.disableCamera : false; 6985 } 6986 // First, see if DO has set it. If so, it's device-wide. 6987 if (mergeDeviceOwnerRestriction) { 6988 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6989 if (deviceOwner != null && deviceOwner.disableCamera) { 6990 return true; 6991 } 6992 } 6993 6994 // Then check each device admin on the user. 6995 DevicePolicyData policy = getUserData(userHandle); 6996 // Determine whether or not the device camera is disabled for any active admins. 6997 final int N = policy.mAdminList.size(); 6998 for (int i = 0; i < N; i++) { 6999 ActiveAdmin admin = policy.mAdminList.get(i); 7000 if (admin.disableCamera) { 7001 return true; 7002 } 7003 } 7004 return false; 7005 } 7006 } 7007 7008 @Override 7009 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 7010 if (!mHasFeature) { 7011 return; 7012 } 7013 Preconditions.checkNotNull(who, "ComponentName is null"); 7014 final int userHandle = mInjector.userHandleGetCallingUserId(); 7015 if (isManagedProfile(userHandle)) { 7016 if (parent) { 7017 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 7018 } else { 7019 which = which & PROFILE_KEYGUARD_FEATURES; 7020 } 7021 } 7022 synchronized (this) { 7023 ActiveAdmin ap = getActiveAdminForCallerLocked( 7024 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 7025 if (ap.disabledKeyguardFeatures != which) { 7026 ap.disabledKeyguardFeatures = which; 7027 saveSettingsLocked(userHandle); 7028 } 7029 } 7030 } 7031 7032 /** 7033 * Gets the disabled state for features in keyguard for the given admin, 7034 * or the aggregate of all active admins if who is null. 7035 */ 7036 @Override 7037 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 7038 if (!mHasFeature) { 7039 return 0; 7040 } 7041 enforceFullCrossUsersPermission(userHandle); 7042 final long ident = mInjector.binderClearCallingIdentity(); 7043 try { 7044 synchronized (this) { 7045 if (who != null) { 7046 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 7047 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 7048 } 7049 7050 final List<ActiveAdmin> admins; 7051 if (!parent && isManagedProfile(userHandle)) { 7052 // If we are being asked about a managed profile, just return keyguard features 7053 // disabled by admins in the profile. 7054 admins = getUserDataUnchecked(userHandle).mAdminList; 7055 } else { 7056 // Otherwise return those set by admins in the user and its profiles. 7057 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 7058 } 7059 7060 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 7061 final int N = admins.size(); 7062 for (int i = 0; i < N; i++) { 7063 ActiveAdmin admin = admins.get(i); 7064 int userId = admin.getUserHandle().getIdentifier(); 7065 boolean isRequestedUser = !parent && (userId == userHandle); 7066 if (isRequestedUser || !isManagedProfile(userId)) { 7067 // If we are being asked explicitly about this user 7068 // return all disabled features even if its a managed profile. 7069 which |= admin.disabledKeyguardFeatures; 7070 } else { 7071 // Otherwise a managed profile is only allowed to disable 7072 // some features on the parent user. 7073 which |= (admin.disabledKeyguardFeatures 7074 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 7075 } 7076 } 7077 return which; 7078 } 7079 } finally { 7080 mInjector.binderRestoreCallingIdentity(ident); 7081 } 7082 } 7083 7084 @Override 7085 public void setKeepUninstalledPackages(ComponentName who, String callerPackage, 7086 List<String> packageList) { 7087 if (!mHasFeature) { 7088 return; 7089 } 7090 Preconditions.checkNotNull(packageList, "packageList is null"); 7091 final int userHandle = UserHandle.getCallingUserId(); 7092 synchronized (this) { 7093 // Ensure the caller is a DO or a keep uninstalled packages delegate. 7094 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 7095 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 7096 // Get the device owner 7097 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 7098 // Set list of packages to be kept even if uninstalled. 7099 deviceOwner.keepUninstalledPackages = packageList; 7100 // Save settings. 7101 saveSettingsLocked(userHandle); 7102 // Notify package manager. 7103 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 7104 } 7105 } 7106 7107 @Override 7108 public List<String> getKeepUninstalledPackages(ComponentName who, String callerPackage) { 7109 if (!mHasFeature) { 7110 return null; 7111 } 7112 // TODO In split system user mode, allow apps on user 0 to query the list 7113 synchronized (this) { 7114 // Ensure the caller is a DO or a keep uninstalled packages delegate. 7115 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 7116 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 7117 return getKeepUninstalledPackagesLocked(); 7118 } 7119 } 7120 7121 private List<String> getKeepUninstalledPackagesLocked() { 7122 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 7123 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 7124 } 7125 7126 @Override 7127 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 7128 if (!mHasFeature) { 7129 return false; 7130 } 7131 if (admin == null 7132 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 7133 throw new IllegalArgumentException("Invalid component " + admin 7134 + " for device owner"); 7135 } 7136 final boolean hasIncompatibleAccountsOrNonAdb = 7137 hasIncompatibleAccountsOrNonAdbNoLock(userId, admin); 7138 synchronized (this) { 7139 enforceCanSetDeviceOwnerLocked(admin, userId, hasIncompatibleAccountsOrNonAdb); 7140 final ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(admin, userId); 7141 if (activeAdmin == null 7142 || getUserData(userId).mRemovingAdmins.contains(admin)) { 7143 throw new IllegalArgumentException("Not active admin: " + admin); 7144 } 7145 7146 // Shutting down backup manager service permanently. 7147 long ident = mInjector.binderClearCallingIdentity(); 7148 try { 7149 if (mInjector.getIBackupManager() != null) { 7150 mInjector.getIBackupManager() 7151 .setBackupServiceActive(UserHandle.USER_SYSTEM, false); 7152 } 7153 } catch (RemoteException e) { 7154 throw new IllegalStateException("Failed deactivating backup service.", e); 7155 } finally { 7156 mInjector.binderRestoreCallingIdentity(ident); 7157 } 7158 7159 if (isAdb()) { 7160 // Log device owner provisioning was started using adb. 7161 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_DEVICE_OWNER); 7162 } 7163 7164 mOwners.setDeviceOwner(admin, ownerName, userId); 7165 mOwners.writeDeviceOwner(); 7166 updateDeviceOwnerLocked(); 7167 setDeviceOwnerSystemPropertyLocked(); 7168 7169 final Set<String> restrictions = 7170 UserRestrictionsUtils.getDefaultEnabledForDeviceOwner(); 7171 if (!restrictions.isEmpty()) { 7172 for (String restriction : restrictions) { 7173 activeAdmin.ensureUserRestrictions().putBoolean(restriction, true); 7174 } 7175 activeAdmin.defaultEnabledRestrictionsAlreadySet.addAll(restrictions); 7176 Slog.i(LOG_TAG, "Enabled the following restrictions by default: " + restrictions); 7177 7178 saveUserRestrictionsLocked(userId); 7179 } 7180 7181 ident = mInjector.binderClearCallingIdentity(); 7182 try { 7183 // TODO Send to system too? 7184 sendOwnerChangedBroadcast(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED, userId); 7185 } finally { 7186 mInjector.binderRestoreCallingIdentity(ident); 7187 } 7188 mDeviceAdminServiceController.startServiceForOwner( 7189 admin.getPackageName(), userId, "set-device-owner"); 7190 7191 Slog.i(LOG_TAG, "Device owner set: " + admin + " on user " + userId); 7192 return true; 7193 } 7194 } 7195 7196 @Override 7197 public boolean hasDeviceOwner() { 7198 enforceDeviceOwnerOrManageUsers(); 7199 return mOwners.hasDeviceOwner(); 7200 } 7201 7202 boolean isDeviceOwner(ActiveAdmin admin) { 7203 return isDeviceOwner(admin.info.getComponent(), admin.getUserHandle().getIdentifier()); 7204 } 7205 7206 public boolean isDeviceOwner(ComponentName who, int userId) { 7207 synchronized (this) { 7208 return mOwners.hasDeviceOwner() 7209 && mOwners.getDeviceOwnerUserId() == userId 7210 && mOwners.getDeviceOwnerComponent().equals(who); 7211 } 7212 } 7213 7214 private boolean isDeviceOwnerPackage(String packageName, int userId) { 7215 synchronized (this) { 7216 return mOwners.hasDeviceOwner() 7217 && mOwners.getDeviceOwnerUserId() == userId 7218 && mOwners.getDeviceOwnerPackageName().equals(packageName); 7219 } 7220 } 7221 7222 private boolean isProfileOwnerPackage(String packageName, int userId) { 7223 synchronized (this) { 7224 return mOwners.hasProfileOwner(userId) 7225 && mOwners.getProfileOwnerPackage(userId).equals(packageName); 7226 } 7227 } 7228 7229 public boolean isProfileOwner(ComponentName who, int userId) { 7230 final ComponentName profileOwner = getProfileOwner(userId); 7231 return who != null && who.equals(profileOwner); 7232 } 7233 7234 @Override 7235 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 7236 if (!mHasFeature) { 7237 return null; 7238 } 7239 if (!callingUserOnly) { 7240 enforceManageUsers(); 7241 } 7242 synchronized (this) { 7243 if (!mOwners.hasDeviceOwner()) { 7244 return null; 7245 } 7246 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 7247 mOwners.getDeviceOwnerUserId()) { 7248 return null; 7249 } 7250 return mOwners.getDeviceOwnerComponent(); 7251 } 7252 } 7253 7254 @Override 7255 public int getDeviceOwnerUserId() { 7256 if (!mHasFeature) { 7257 return UserHandle.USER_NULL; 7258 } 7259 enforceManageUsers(); 7260 synchronized (this) { 7261 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 7262 } 7263 } 7264 7265 /** 7266 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 7267 * MANAGE_USERS. 7268 */ 7269 @Override 7270 public String getDeviceOwnerName() { 7271 if (!mHasFeature) { 7272 return null; 7273 } 7274 enforceManageUsers(); 7275 synchronized (this) { 7276 if (!mOwners.hasDeviceOwner()) { 7277 return null; 7278 } 7279 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 7280 // Should setDeviceOwner/ProfileOwner still take a name? 7281 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 7282 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 7283 } 7284 } 7285 7286 /** Returns the active device owner or {@code null} if there is no device owner. */ 7287 @VisibleForTesting 7288 ActiveAdmin getDeviceOwnerAdminLocked() { 7289 ComponentName component = mOwners.getDeviceOwnerComponent(); 7290 if (component == null) { 7291 return null; 7292 } 7293 7294 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 7295 final int n = policy.mAdminList.size(); 7296 for (int i = 0; i < n; i++) { 7297 ActiveAdmin admin = policy.mAdminList.get(i); 7298 if (component.equals(admin.info.getComponent())) { 7299 return admin; 7300 } 7301 } 7302 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 7303 return null; 7304 } 7305 7306 @Override 7307 public void clearDeviceOwner(String packageName) { 7308 Preconditions.checkNotNull(packageName, "packageName is null"); 7309 final int callingUid = mInjector.binderGetCallingUid(); 7310 try { 7311 int uid = mInjector.getPackageManager().getPackageUidAsUser(packageName, 7312 UserHandle.getUserId(callingUid)); 7313 if (uid != callingUid) { 7314 throw new SecurityException("Invalid packageName"); 7315 } 7316 } catch (NameNotFoundException e) { 7317 throw new SecurityException(e); 7318 } 7319 synchronized (this) { 7320 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 7321 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 7322 if (!mOwners.hasDeviceOwner() 7323 || !deviceOwnerComponent.getPackageName().equals(packageName) 7324 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 7325 throw new SecurityException( 7326 "clearDeviceOwner can only be called by the device owner"); 7327 } 7328 enforceUserUnlocked(deviceOwnerUserId); 7329 7330 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 7331 long ident = mInjector.binderClearCallingIdentity(); 7332 try { 7333 clearDeviceOwnerLocked(admin, deviceOwnerUserId); 7334 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 7335 sendOwnerChangedBroadcast(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED, 7336 deviceOwnerUserId); 7337 } finally { 7338 mInjector.binderRestoreCallingIdentity(ident); 7339 } 7340 Slog.i(LOG_TAG, "Device owner removed: " + deviceOwnerComponent); 7341 } 7342 } 7343 7344 private void clearOverrideApnUnchecked() { 7345 // Disable Override APNs and remove them from database. 7346 setOverrideApnsEnabledUnchecked(false); 7347 final List<ApnSetting> apns = getOverrideApnsUnchecked(); 7348 for (int i = 0; i < apns.size(); i ++) { 7349 removeOverrideApnUnchecked(apns.get(i).getId()); 7350 } 7351 } 7352 7353 private void clearDeviceOwnerLocked(ActiveAdmin admin, int userId) { 7354 mDeviceAdminServiceController.stopServiceForOwner(userId, "clear-device-owner"); 7355 7356 if (admin != null) { 7357 admin.disableCamera = false; 7358 admin.userRestrictions = null; 7359 admin.defaultEnabledRestrictionsAlreadySet.clear(); 7360 admin.forceEphemeralUsers = false; 7361 admin.isNetworkLoggingEnabled = false; 7362 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 7363 } 7364 final DevicePolicyData policyData = getUserData(userId); 7365 policyData.mCurrentInputMethodSet = false; 7366 saveSettingsLocked(userId); 7367 final DevicePolicyData systemPolicyData = getUserData(UserHandle.USER_SYSTEM); 7368 systemPolicyData.mLastSecurityLogRetrievalTime = -1; 7369 systemPolicyData.mLastBugReportRequestTime = -1; 7370 systemPolicyData.mLastNetworkLogsRetrievalTime = -1; 7371 saveSettingsLocked(UserHandle.USER_SYSTEM); 7372 clearUserPoliciesLocked(userId); 7373 clearOverrideApnUnchecked(); 7374 7375 mOwners.clearDeviceOwner(); 7376 mOwners.writeDeviceOwner(); 7377 updateDeviceOwnerLocked(); 7378 7379 clearDeviceOwnerUserRestrictionLocked(UserHandle.of(userId)); 7380 mInjector.securityLogSetLoggingEnabledProperty(false); 7381 mSecurityLogMonitor.stop(); 7382 setNetworkLoggingActiveInternal(false); 7383 deleteTransferOwnershipBundleLocked(userId); 7384 7385 try { 7386 if (mInjector.getIBackupManager() != null) { 7387 // Reactivate backup service. 7388 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 7389 } 7390 } catch (RemoteException e) { 7391 throw new IllegalStateException("Failed reactivating backup service.", e); 7392 } 7393 } 7394 7395 @Override 7396 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 7397 if (!mHasFeature) { 7398 return false; 7399 } 7400 if (who == null 7401 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 7402 throw new IllegalArgumentException("Component " + who 7403 + " not installed for userId:" + userHandle); 7404 } 7405 final boolean hasIncompatibleAccountsOrNonAdb = 7406 hasIncompatibleAccountsOrNonAdbNoLock(userHandle, who); 7407 synchronized (this) { 7408 enforceCanSetProfileOwnerLocked(who, userHandle, hasIncompatibleAccountsOrNonAdb); 7409 7410 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7411 if (admin == null || getUserData(userHandle).mRemovingAdmins.contains(who)) { 7412 throw new IllegalArgumentException("Not active admin: " + who); 7413 } 7414 7415 if (isAdb()) { 7416 // Log profile owner provisioning was started using adb. 7417 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_PROFILE_OWNER); 7418 } 7419 7420 mOwners.setProfileOwner(who, ownerName, userHandle); 7421 mOwners.writeProfileOwner(userHandle); 7422 Slog.i(LOG_TAG, "Profile owner set: " + who + " on user " + userHandle); 7423 7424 final long id = mInjector.binderClearCallingIdentity(); 7425 try { 7426 if (mUserManager.isManagedProfile(userHandle)) { 7427 maybeSetDefaultRestrictionsForAdminLocked(userHandle, admin, 7428 UserRestrictionsUtils.getDefaultEnabledForManagedProfiles()); 7429 ensureUnknownSourcesRestrictionForProfileOwnerLocked(userHandle, admin, 7430 true /* newOwner */); 7431 } 7432 sendOwnerChangedBroadcast(DevicePolicyManager.ACTION_PROFILE_OWNER_CHANGED, 7433 userHandle); 7434 } finally { 7435 mInjector.binderRestoreCallingIdentity(id); 7436 } 7437 mDeviceAdminServiceController.startServiceForOwner( 7438 who.getPackageName(), userHandle, "set-profile-owner"); 7439 return true; 7440 } 7441 } 7442 7443 @Override 7444 public void clearProfileOwner(ComponentName who) { 7445 if (!mHasFeature) { 7446 return; 7447 } 7448 Preconditions.checkNotNull(who, "ComponentName is null"); 7449 7450 final int userId = mInjector.userHandleGetCallingUserId(); 7451 enforceNotManagedProfile(userId, "clear profile owner"); 7452 enforceUserUnlocked(userId); 7453 synchronized (this) { 7454 // Check if this is the profile owner who is calling 7455 final ActiveAdmin admin = 7456 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7457 7458 final long ident = mInjector.binderClearCallingIdentity(); 7459 try { 7460 clearProfileOwnerLocked(admin, userId); 7461 removeActiveAdminLocked(who, userId); 7462 sendOwnerChangedBroadcast(DevicePolicyManager.ACTION_PROFILE_OWNER_CHANGED, 7463 userId); 7464 } finally { 7465 mInjector.binderRestoreCallingIdentity(ident); 7466 } 7467 Slog.i(LOG_TAG, "Profile owner " + who + " removed from user " + userId); 7468 } 7469 } 7470 7471 public void clearProfileOwnerLocked(ActiveAdmin admin, int userId) { 7472 mDeviceAdminServiceController.stopServiceForOwner(userId, "clear-profile-owner"); 7473 7474 if (admin != null) { 7475 admin.disableCamera = false; 7476 admin.userRestrictions = null; 7477 admin.defaultEnabledRestrictionsAlreadySet.clear(); 7478 } 7479 final DevicePolicyData policyData = getUserData(userId); 7480 policyData.mCurrentInputMethodSet = false; 7481 policyData.mOwnerInstalledCaCerts.clear(); 7482 saveSettingsLocked(userId); 7483 clearUserPoliciesLocked(userId); 7484 mOwners.removeProfileOwner(userId); 7485 mOwners.writeProfileOwner(userId); 7486 deleteTransferOwnershipBundleLocked(userId); 7487 } 7488 7489 @Override 7490 public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) { 7491 Preconditions.checkNotNull(who, "ComponentName is null"); 7492 if (!mHasFeature) { 7493 return; 7494 } 7495 7496 synchronized (this) { 7497 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7498 long token = mInjector.binderClearCallingIdentity(); 7499 try { 7500 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null); 7501 } finally { 7502 mInjector.binderRestoreCallingIdentity(token); 7503 } 7504 } 7505 } 7506 7507 @Override 7508 public CharSequence getDeviceOwnerLockScreenInfo() { 7509 return mLockPatternUtils.getDeviceOwnerInfo(); 7510 } 7511 7512 private void clearUserPoliciesLocked(int userId) { 7513 // Reset some of the user-specific policies. 7514 final DevicePolicyData policy = getUserData(userId); 7515 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 7516 // Clear delegations. 7517 policy.mDelegationMap.clear(); 7518 policy.mStatusBarDisabled = false; 7519 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 7520 policy.mAffiliationIds.clear(); 7521 policy.mLockTaskPackages.clear(); 7522 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userId); 7523 policy.mLockTaskFeatures = DevicePolicyManager.LOCK_TASK_FEATURE_NONE; 7524 saveSettingsLocked(userId); 7525 7526 try { 7527 mIPackageManager.updatePermissionFlagsForAllApps( 7528 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 7529 0 /* flagValues */, userId); 7530 pushUserRestrictions(userId); 7531 } catch (RemoteException re) { 7532 // Shouldn't happen. 7533 } 7534 } 7535 7536 @Override 7537 public boolean hasUserSetupCompleted() { 7538 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 7539 } 7540 7541 // This checks only if the Setup Wizard has run. Since Wear devices pair before 7542 // completing Setup Wizard, and pairing involves transferring user data, calling 7543 // logic may want to check mIsWatch or mPaired in addition to hasUserSetupCompleted(). 7544 private boolean hasUserSetupCompleted(int userHandle) { 7545 if (!mHasFeature) { 7546 return true; 7547 } 7548 return getUserData(userHandle).mUserSetupComplete; 7549 } 7550 7551 private boolean hasPaired(int userHandle) { 7552 if (!mHasFeature) { 7553 return true; 7554 } 7555 return getUserData(userHandle).mPaired; 7556 } 7557 7558 @Override 7559 public int getUserProvisioningState() { 7560 if (!mHasFeature) { 7561 return DevicePolicyManager.STATE_USER_UNMANAGED; 7562 } 7563 int userHandle = mInjector.userHandleGetCallingUserId(); 7564 return getUserProvisioningState(userHandle); 7565 } 7566 7567 private int getUserProvisioningState(int userHandle) { 7568 return getUserData(userHandle).mUserProvisioningState; 7569 } 7570 7571 @Override 7572 public void setUserProvisioningState(int newState, int userHandle) { 7573 if (!mHasFeature) { 7574 return; 7575 } 7576 7577 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 7578 && getManagedUserId(userHandle) == -1) { 7579 // No managed device, user or profile, so setting provisioning state makes no sense. 7580 throw new IllegalStateException("Not allowed to change provisioning state unless a " 7581 + "device or profile owner is set."); 7582 } 7583 7584 synchronized (this) { 7585 boolean transitionCheckNeeded = true; 7586 7587 // Calling identity/permission checks. 7588 if (isAdb()) { 7589 // ADB shell can only move directly from un-managed to finalized as part of directly 7590 // setting profile-owner or device-owner. 7591 if (getUserProvisioningState(userHandle) != 7592 DevicePolicyManager.STATE_USER_UNMANAGED 7593 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 7594 throw new IllegalStateException("Not allowed to change provisioning state " 7595 + "unless current provisioning state is unmanaged, and new state is " 7596 + "finalized."); 7597 } 7598 transitionCheckNeeded = false; 7599 } else { 7600 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 7601 enforceCanManageProfileAndDeviceOwners(); 7602 } 7603 7604 final DevicePolicyData policyData = getUserData(userHandle); 7605 if (transitionCheckNeeded) { 7606 // Optional state transition check for non-ADB case. 7607 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 7608 } 7609 policyData.mUserProvisioningState = newState; 7610 saveSettingsLocked(userHandle); 7611 } 7612 } 7613 7614 private void checkUserProvisioningStateTransition(int currentState, int newState) { 7615 // Valid transitions for normal use-cases. 7616 switch (currentState) { 7617 case DevicePolicyManager.STATE_USER_UNMANAGED: 7618 // Can move to any state from unmanaged (except itself as an edge case).. 7619 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 7620 return; 7621 } 7622 break; 7623 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 7624 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 7625 // Can only move to finalized from these states. 7626 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 7627 return; 7628 } 7629 break; 7630 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 7631 // Current user has a managed-profile, but current user is not managed, so 7632 // rather than moving to finalized state, go back to unmanaged once 7633 // profile provisioning is complete. 7634 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 7635 return; 7636 } 7637 break; 7638 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 7639 // Cannot transition out of finalized. 7640 break; 7641 } 7642 7643 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 7644 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 7645 + "from state [" + currentState + "]"); 7646 } 7647 7648 @Override 7649 public void setProfileEnabled(ComponentName who) { 7650 if (!mHasFeature) { 7651 return; 7652 } 7653 Preconditions.checkNotNull(who, "ComponentName is null"); 7654 synchronized (this) { 7655 // Check if this is the profile owner who is calling 7656 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7657 final int userId = UserHandle.getCallingUserId(); 7658 enforceManagedProfile(userId, "enable the profile"); 7659 // Check if the profile is already enabled. 7660 UserInfo managedProfile = getUserInfo(userId); 7661 if (managedProfile.isEnabled()) { 7662 Slog.e(LOG_TAG, 7663 "setProfileEnabled is called when the profile is already enabled"); 7664 return; 7665 } 7666 long id = mInjector.binderClearCallingIdentity(); 7667 try { 7668 mUserManager.setUserEnabled(userId); 7669 UserInfo parent = mUserManager.getProfileParent(userId); 7670 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 7671 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 7672 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 7673 Intent.FLAG_RECEIVER_FOREGROUND); 7674 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 7675 } finally { 7676 mInjector.binderRestoreCallingIdentity(id); 7677 } 7678 } 7679 } 7680 7681 @Override 7682 public void setProfileName(ComponentName who, String profileName) { 7683 Preconditions.checkNotNull(who, "ComponentName is null"); 7684 int userId = UserHandle.getCallingUserId(); 7685 // Check if this is the profile owner (includes device owner). 7686 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7687 7688 long id = mInjector.binderClearCallingIdentity(); 7689 try { 7690 mUserManager.setUserName(userId, profileName); 7691 } finally { 7692 mInjector.binderRestoreCallingIdentity(id); 7693 } 7694 } 7695 7696 @Override 7697 public ComponentName getProfileOwner(int userHandle) { 7698 if (!mHasFeature) { 7699 return null; 7700 } 7701 7702 synchronized (this) { 7703 return mOwners.getProfileOwnerComponent(userHandle); 7704 } 7705 } 7706 7707 // Returns the active profile owner for this user or null if the current user has no 7708 // profile owner. 7709 @VisibleForTesting 7710 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 7711 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 7712 if (profileOwner == null) { 7713 return null; 7714 } 7715 DevicePolicyData policy = getUserData(userHandle); 7716 final int n = policy.mAdminList.size(); 7717 for (int i = 0; i < n; i++) { 7718 ActiveAdmin admin = policy.mAdminList.get(i); 7719 if (profileOwner.equals(admin.info.getComponent())) { 7720 return admin; 7721 } 7722 } 7723 return null; 7724 } 7725 7726 @Override 7727 public String getProfileOwnerName(int userHandle) { 7728 if (!mHasFeature) { 7729 return null; 7730 } 7731 enforceManageUsers(); 7732 ComponentName profileOwner = getProfileOwner(userHandle); 7733 if (profileOwner == null) { 7734 return null; 7735 } 7736 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 7737 } 7738 7739 /** 7740 * Canonical name for a given package. 7741 */ 7742 private String getApplicationLabel(String packageName, int userHandle) { 7743 long token = mInjector.binderClearCallingIdentity(); 7744 try { 7745 final Context userContext; 7746 try { 7747 UserHandle handle = new UserHandle(userHandle); 7748 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 7749 } catch (PackageManager.NameNotFoundException nnfe) { 7750 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 7751 return null; 7752 } 7753 ApplicationInfo appInfo = userContext.getApplicationInfo(); 7754 CharSequence result = null; 7755 if (appInfo != null) { 7756 PackageManager pm = userContext.getPackageManager(); 7757 result = pm.getApplicationLabel(appInfo); 7758 } 7759 return result != null ? result.toString() : null; 7760 } finally { 7761 mInjector.binderRestoreCallingIdentity(token); 7762 } 7763 } 7764 7765 /** 7766 * Calls wtfStack() if called with the DPMS lock held. 7767 */ 7768 private void wtfIfInLock() { 7769 if (Thread.holdsLock(this)) { 7770 Slog.wtfStack(LOG_TAG, "Shouldn't be called with DPMS lock held"); 7771 } 7772 } 7773 7774 /** 7775 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7776 * permission. 7777 * The profile owner can only be set before the user setup phase has completed, 7778 * except for: 7779 * - SYSTEM_UID 7780 * - adb unless hasIncompatibleAccountsOrNonAdb is true. 7781 */ 7782 private void enforceCanSetProfileOwnerLocked(@Nullable ComponentName owner, int userHandle, 7783 boolean hasIncompatibleAccountsOrNonAdb) { 7784 UserInfo info = getUserInfo(userHandle); 7785 if (info == null) { 7786 // User doesn't exist. 7787 throw new IllegalArgumentException( 7788 "Attempted to set profile owner for invalid userId: " + userHandle); 7789 } 7790 if (info.isGuest()) { 7791 throw new IllegalStateException("Cannot set a profile owner on a guest"); 7792 } 7793 if (mOwners.hasProfileOwner(userHandle)) { 7794 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 7795 + "is already set."); 7796 } 7797 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 7798 throw new IllegalStateException("Trying to set the profile owner, but the user " 7799 + "already has a device owner."); 7800 } 7801 if (isAdb()) { 7802 if ((mIsWatch || hasUserSetupCompleted(userHandle)) 7803 && hasIncompatibleAccountsOrNonAdb) { 7804 throw new IllegalStateException("Not allowed to set the profile owner because " 7805 + "there are already some accounts on the profile"); 7806 } 7807 return; 7808 } 7809 enforceCanManageProfileAndDeviceOwners(); 7810 if ((mIsWatch || hasUserSetupCompleted(userHandle)) && !isCallerWithSystemUid()) { 7811 throw new IllegalStateException("Cannot set the profile owner on a user which is " 7812 + "already set-up"); 7813 } 7814 } 7815 7816 /** 7817 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7818 * permission. 7819 */ 7820 private void enforceCanSetDeviceOwnerLocked(@Nullable ComponentName owner, int userId, 7821 boolean hasIncompatibleAccountsOrNonAdb) { 7822 if (!isAdb()) { 7823 enforceCanManageProfileAndDeviceOwners(); 7824 } 7825 7826 final int code = checkDeviceOwnerProvisioningPreConditionLocked( 7827 owner, userId, isAdb(), hasIncompatibleAccountsOrNonAdb); 7828 switch (code) { 7829 case CODE_OK: 7830 return; 7831 case CODE_HAS_DEVICE_OWNER: 7832 throw new IllegalStateException( 7833 "Trying to set the device owner, but device owner is already set."); 7834 case CODE_USER_HAS_PROFILE_OWNER: 7835 throw new IllegalStateException("Trying to set the device owner, but the user " 7836 + "already has a profile owner."); 7837 case CODE_USER_NOT_RUNNING: 7838 throw new IllegalStateException("User not running: " + userId); 7839 case CODE_NOT_SYSTEM_USER: 7840 throw new IllegalStateException("User is not system user"); 7841 case CODE_USER_SETUP_COMPLETED: 7842 throw new IllegalStateException( 7843 "Cannot set the device owner if the device is already set-up"); 7844 case CODE_NONSYSTEM_USER_EXISTS: 7845 throw new IllegalStateException("Not allowed to set the device owner because there " 7846 + "are already several users on the device"); 7847 case CODE_ACCOUNTS_NOT_EMPTY: 7848 throw new IllegalStateException("Not allowed to set the device owner because there " 7849 + "are already some accounts on the device"); 7850 case CODE_HAS_PAIRED: 7851 throw new IllegalStateException("Not allowed to set the device owner because this " 7852 + "device has already paired"); 7853 default: 7854 throw new IllegalStateException("Unexpected @ProvisioningPreCondition " + code); 7855 } 7856 } 7857 7858 private void enforceUserUnlocked(int userId) { 7859 // Since we're doing this operation on behalf of an app, we only 7860 // want to use the actual "unlocked" state. 7861 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 7862 "User must be running and unlocked"); 7863 } 7864 7865 private void enforceUserUnlocked(@UserIdInt int userId, boolean parent) { 7866 if (parent) { 7867 enforceUserUnlocked(getProfileParentId(userId)); 7868 } else { 7869 enforceUserUnlocked(userId); 7870 } 7871 } 7872 7873 private void enforceManageUsers() { 7874 final int callingUid = mInjector.binderGetCallingUid(); 7875 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 7876 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 7877 } 7878 } 7879 7880 private void enforceFullCrossUsersPermission(int userHandle) { 7881 enforceSystemUserOrPermissionIfCrossUser(userHandle, 7882 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 7883 } 7884 7885 private void enforceCrossUsersPermission(int userHandle) { 7886 enforceSystemUserOrPermissionIfCrossUser(userHandle, 7887 android.Manifest.permission.INTERACT_ACROSS_USERS); 7888 } 7889 7890 private void enforceSystemUserOrPermission(String permission) { 7891 if (!(isCallerWithSystemUid() || mInjector.binderGetCallingUid() == Process.ROOT_UID)) { 7892 mContext.enforceCallingOrSelfPermission(permission, 7893 "Must be system or have " + permission + " permission"); 7894 } 7895 } 7896 7897 private void enforceSystemUserOrPermissionIfCrossUser(int userHandle, String permission) { 7898 if (userHandle < 0) { 7899 throw new IllegalArgumentException("Invalid userId " + userHandle); 7900 } 7901 if (userHandle == mInjector.userHandleGetCallingUserId()) { 7902 return; 7903 } 7904 enforceSystemUserOrPermission(permission); 7905 } 7906 7907 private void enforceManagedProfile(int userHandle, String message) { 7908 if(!isManagedProfile(userHandle)) { 7909 throw new SecurityException("You can not " + message + " outside a managed profile."); 7910 } 7911 } 7912 7913 private void enforceNotManagedProfile(int userHandle, String message) { 7914 if(isManagedProfile(userHandle)) { 7915 throw new SecurityException("You can not " + message + " for a managed profile."); 7916 } 7917 } 7918 7919 private void enforceDeviceOwnerOrManageUsers() { 7920 synchronized (this) { 7921 if (getActiveAdminWithPolicyForUidLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 7922 mInjector.binderGetCallingUid()) != null) { 7923 return; 7924 } 7925 } 7926 enforceManageUsers(); 7927 } 7928 7929 private void enforceProfileOwnerOrSystemUser() { 7930 synchronized (this) { 7931 if (getActiveAdminWithPolicyForUidLocked(null, 7932 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7933 != null) { 7934 return; 7935 } 7936 } 7937 Preconditions.checkState(isCallerWithSystemUid(), 7938 "Only profile owner, device owner and system may call this method."); 7939 } 7940 7941 private void enforceProfileOwnerOrFullCrossUsersPermission(int userId) { 7942 if (userId == mInjector.userHandleGetCallingUserId()) { 7943 synchronized (this) { 7944 if (getActiveAdminWithPolicyForUidLocked(null, 7945 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7946 != null) { 7947 // Device Owner/Profile Owner may access the user it runs on. 7948 return; 7949 } 7950 } 7951 } 7952 // Otherwise, INTERACT_ACROSS_USERS_FULL permission, system UID or root UID is required. 7953 enforceSystemUserOrPermission(android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 7954 } 7955 7956 private boolean canUserUseLockTaskLocked(int userId) { 7957 if (isUserAffiliatedWithDeviceLocked(userId)) { 7958 return true; 7959 } 7960 7961 // Unaffiliated profile owners are not allowed to use lock when there is a device owner. 7962 if (mOwners.hasDeviceOwner()) { 7963 return false; 7964 } 7965 7966 final ComponentName profileOwner = getProfileOwner(userId); 7967 if (profileOwner == null) { 7968 return false; 7969 } 7970 7971 // Managed profiles are not allowed to use lock task 7972 if (isManagedProfile(userId)) { 7973 return false; 7974 } 7975 7976 return true; 7977 } 7978 7979 private void enforceCanCallLockTaskLocked(ComponentName who) { 7980 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7981 final int userId = mInjector.userHandleGetCallingUserId(); 7982 if (!canUserUseLockTaskLocked(userId)) { 7983 throw new SecurityException("User " + userId + " is not allowed to use lock task"); 7984 } 7985 } 7986 7987 private void ensureCallerPackage(@Nullable String packageName) { 7988 if (packageName == null) { 7989 Preconditions.checkState(isCallerWithSystemUid(), 7990 "Only caller can omit package name"); 7991 } else { 7992 final int callingUid = mInjector.binderGetCallingUid(); 7993 final int userId = mInjector.userHandleGetCallingUserId(); 7994 try { 7995 final ApplicationInfo ai = mIPackageManager.getApplicationInfo( 7996 packageName, 0, userId); 7997 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name"); 7998 } catch (RemoteException e) { 7999 // Shouldn't happen 8000 } 8001 } 8002 } 8003 8004 private boolean isCallerWithSystemUid() { 8005 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 8006 } 8007 8008 protected int getProfileParentId(int userHandle) { 8009 final long ident = mInjector.binderClearCallingIdentity(); 8010 try { 8011 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 8012 return parentUser != null ? parentUser.id : userHandle; 8013 } finally { 8014 mInjector.binderRestoreCallingIdentity(ident); 8015 } 8016 } 8017 8018 private int getCredentialOwner(int userHandle, boolean parent) { 8019 final long ident = mInjector.binderClearCallingIdentity(); 8020 try { 8021 if (parent) { 8022 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 8023 if (parentProfile != null) { 8024 userHandle = parentProfile.id; 8025 } 8026 } 8027 return mUserManager.getCredentialOwnerProfile(userHandle); 8028 } finally { 8029 mInjector.binderRestoreCallingIdentity(ident); 8030 } 8031 } 8032 8033 private boolean isManagedProfile(int userHandle) { 8034 final UserInfo user = getUserInfo(userHandle); 8035 return user != null && user.isManagedProfile(); 8036 } 8037 8038 private void enableIfNecessary(String packageName, int userId) { 8039 try { 8040 final ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 8041 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS, userId); 8042 if (ai.enabledSetting 8043 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 8044 mIPackageManager.setApplicationEnabledSetting(packageName, 8045 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 8046 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 8047 } 8048 } catch (RemoteException e) { 8049 } 8050 } 8051 8052 @Override 8053 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 8054 if (!DumpUtils.checkDumpPermission(mContext, LOG_TAG, pw)) return; 8055 8056 synchronized (this) { 8057 pw.println("Current Device Policy Manager state:"); 8058 8059 mOwners.dump(" ", pw); 8060 mDeviceAdminServiceController.dump(" ", pw); 8061 int userCount = mUserData.size(); 8062 for (int u = 0; u < userCount; u++) { 8063 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 8064 pw.println(); 8065 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 8066 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 8067 final int N = policy.mAdminList.size(); 8068 for (int i=0; i<N; i++) { 8069 ActiveAdmin ap = policy.mAdminList.get(i); 8070 if (ap != null) { 8071 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 8072 pw.println(":"); 8073 ap.dump(" ", pw); 8074 } 8075 } 8076 if (!policy.mRemovingAdmins.isEmpty()) { 8077 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 8078 + policy.mRemovingAdmins); 8079 } 8080 8081 pw.println(" "); 8082 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 8083 } 8084 pw.println(); 8085 mConstants.dump(" ", pw); 8086 pw.println(); 8087 pw.println(" Encryption Status: " + getEncryptionStatusName(getEncryptionStatus())); 8088 } 8089 } 8090 8091 private String getEncryptionStatusName(int encryptionStatus) { 8092 switch (encryptionStatus) { 8093 case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE: 8094 return "inactive"; 8095 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: 8096 return "block default key"; 8097 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE: 8098 return "block"; 8099 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER: 8100 return "per-user"; 8101 case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED: 8102 return "unsupported"; 8103 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING: 8104 return "activating"; 8105 default: 8106 return "unknown"; 8107 } 8108 } 8109 8110 @Override 8111 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 8112 ComponentName activity) { 8113 Preconditions.checkNotNull(who, "ComponentName is null"); 8114 final int userHandle = UserHandle.getCallingUserId(); 8115 synchronized (this) { 8116 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8117 8118 long id = mInjector.binderClearCallingIdentity(); 8119 try { 8120 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 8121 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 8122 } catch (RemoteException re) { 8123 // Shouldn't happen 8124 } finally { 8125 mInjector.binderRestoreCallingIdentity(id); 8126 } 8127 } 8128 } 8129 8130 @Override 8131 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 8132 Preconditions.checkNotNull(who, "ComponentName is null"); 8133 final int userHandle = UserHandle.getCallingUserId(); 8134 synchronized (this) { 8135 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8136 8137 long id = mInjector.binderClearCallingIdentity(); 8138 try { 8139 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 8140 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 8141 } catch (RemoteException re) { 8142 // Shouldn't happen 8143 } finally { 8144 mInjector.binderRestoreCallingIdentity(id); 8145 } 8146 } 8147 } 8148 8149 @Override 8150 public boolean setApplicationRestrictionsManagingPackage(ComponentName admin, 8151 String packageName) { 8152 try { 8153 setDelegatedScopePreO(admin, packageName, DELEGATION_APP_RESTRICTIONS); 8154 } catch (IllegalArgumentException e) { 8155 return false; 8156 } 8157 return true; 8158 } 8159 8160 @Override 8161 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 8162 final List<String> delegatePackages = getDelegatePackages(admin, 8163 DELEGATION_APP_RESTRICTIONS); 8164 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 8165 } 8166 8167 @Override 8168 public boolean isCallerApplicationRestrictionsManagingPackage(String callerPackage) { 8169 return isCallerDelegate(callerPackage, DELEGATION_APP_RESTRICTIONS); 8170 } 8171 8172 @Override 8173 public void setApplicationRestrictions(ComponentName who, String callerPackage, 8174 String packageName, Bundle settings) { 8175 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8176 DELEGATION_APP_RESTRICTIONS); 8177 8178 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 8179 final long id = mInjector.binderClearCallingIdentity(); 8180 try { 8181 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 8182 } finally { 8183 mInjector.binderRestoreCallingIdentity(id); 8184 } 8185 } 8186 8187 @Override 8188 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 8189 PersistableBundle args, boolean parent) { 8190 if (!mHasFeature) { 8191 return; 8192 } 8193 Preconditions.checkNotNull(admin, "admin is null"); 8194 Preconditions.checkNotNull(agent, "agent is null"); 8195 final int userHandle = UserHandle.getCallingUserId(); 8196 synchronized (this) { 8197 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 8198 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 8199 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 8200 saveSettingsLocked(userHandle); 8201 } 8202 } 8203 8204 @Override 8205 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 8206 ComponentName agent, int userHandle, boolean parent) { 8207 if (!mHasFeature) { 8208 return null; 8209 } 8210 Preconditions.checkNotNull(agent, "agent null"); 8211 enforceFullCrossUsersPermission(userHandle); 8212 8213 synchronized (this) { 8214 final String componentName = agent.flattenToString(); 8215 if (admin != null) { 8216 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle, parent); 8217 if (ap == null) return null; 8218 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 8219 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 8220 List<PersistableBundle> result = new ArrayList<>(); 8221 result.add(trustAgentInfo.options); 8222 return result; 8223 } 8224 8225 // Return strictest policy for this user and profiles that are visible from this user. 8226 List<PersistableBundle> result = null; 8227 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 8228 // of the options. If any admin doesn't have options, discard options for the rest 8229 // and return null. 8230 List<ActiveAdmin> admins = 8231 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 8232 boolean allAdminsHaveOptions = true; 8233 final int N = admins.size(); 8234 for (int i = 0; i < N; i++) { 8235 final ActiveAdmin active = admins.get(i); 8236 8237 final boolean disablesTrust = (active.disabledKeyguardFeatures 8238 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 8239 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 8240 if (info != null && info.options != null && !info.options.isEmpty()) { 8241 if (disablesTrust) { 8242 if (result == null) { 8243 result = new ArrayList<>(); 8244 } 8245 result.add(info.options); 8246 } else { 8247 Log.w(LOG_TAG, "Ignoring admin " + active.info 8248 + " because it has trust options but doesn't declare " 8249 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 8250 } 8251 } else if (disablesTrust) { 8252 allAdminsHaveOptions = false; 8253 break; 8254 } 8255 } 8256 return allAdminsHaveOptions ? result : null; 8257 } 8258 } 8259 8260 @Override 8261 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 8262 Preconditions.checkNotNull(who, "ComponentName is null"); 8263 synchronized (this) { 8264 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8265 8266 int userHandle = UserHandle.getCallingUserId(); 8267 DevicePolicyData userData = getUserData(userHandle); 8268 userData.mRestrictionsProvider = permissionProvider; 8269 saveSettingsLocked(userHandle); 8270 } 8271 } 8272 8273 @Override 8274 public ComponentName getRestrictionsProvider(int userHandle) { 8275 synchronized (this) { 8276 if (!isCallerWithSystemUid()) { 8277 throw new SecurityException("Only the system can query the permission provider"); 8278 } 8279 DevicePolicyData userData = getUserData(userHandle); 8280 return userData != null ? userData.mRestrictionsProvider : null; 8281 } 8282 } 8283 8284 @Override 8285 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 8286 Preconditions.checkNotNull(who, "ComponentName is null"); 8287 int callingUserId = UserHandle.getCallingUserId(); 8288 synchronized (this) { 8289 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8290 8291 long id = mInjector.binderClearCallingIdentity(); 8292 try { 8293 UserInfo parent = mUserManager.getProfileParent(callingUserId); 8294 if (parent == null) { 8295 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 8296 + "parent"); 8297 return; 8298 } 8299 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 8300 mIPackageManager.addCrossProfileIntentFilter( 8301 filter, who.getPackageName(), callingUserId, parent.id, 0); 8302 } 8303 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 8304 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 8305 parent.id, callingUserId, 0); 8306 } 8307 } catch (RemoteException re) { 8308 // Shouldn't happen 8309 } finally { 8310 mInjector.binderRestoreCallingIdentity(id); 8311 } 8312 } 8313 } 8314 8315 @Override 8316 public void clearCrossProfileIntentFilters(ComponentName who) { 8317 Preconditions.checkNotNull(who, "ComponentName is null"); 8318 int callingUserId = UserHandle.getCallingUserId(); 8319 synchronized (this) { 8320 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8321 long id = mInjector.binderClearCallingIdentity(); 8322 try { 8323 UserInfo parent = mUserManager.getProfileParent(callingUserId); 8324 if (parent == null) { 8325 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 8326 + "parent"); 8327 return; 8328 } 8329 // Removing those that go from the managed profile to the parent. 8330 mIPackageManager.clearCrossProfileIntentFilters( 8331 callingUserId, who.getPackageName()); 8332 // And those that go from the parent to the managed profile. 8333 // If we want to support multiple managed profiles, we will have to only remove 8334 // those that have callingUserId as their target. 8335 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 8336 } catch (RemoteException re) { 8337 // Shouldn't happen 8338 } finally { 8339 mInjector.binderRestoreCallingIdentity(id); 8340 } 8341 } 8342 } 8343 8344 /** 8345 * @return true if all packages in enabledPackages are either in the list 8346 * permittedList or are a system app. 8347 */ 8348 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 8349 List<String> permittedList, int userIdToCheck) { 8350 long id = mInjector.binderClearCallingIdentity(); 8351 try { 8352 // If we have an enabled packages list for a managed profile the packages 8353 // we should check are installed for the parent user. 8354 UserInfo user = getUserInfo(userIdToCheck); 8355 if (user.isManagedProfile()) { 8356 userIdToCheck = user.profileGroupId; 8357 } 8358 8359 for (String enabledPackage : enabledPackages) { 8360 boolean systemService = false; 8361 try { 8362 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 8363 enabledPackage, PackageManager.MATCH_UNINSTALLED_PACKAGES, 8364 userIdToCheck); 8365 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 8366 } catch (RemoteException e) { 8367 Log.i(LOG_TAG, "Can't talk to package managed", e); 8368 } 8369 if (!systemService && !permittedList.contains(enabledPackage)) { 8370 return false; 8371 } 8372 } 8373 } finally { 8374 mInjector.binderRestoreCallingIdentity(id); 8375 } 8376 return true; 8377 } 8378 8379 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 8380 // Not using AccessibilityManager.getInstance because that guesses 8381 // at the user you require based on callingUid and caches for a given 8382 // process. 8383 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 8384 IAccessibilityManager service = iBinder == null 8385 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 8386 return new AccessibilityManager(mContext, service, userId); 8387 } 8388 8389 @Override 8390 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 8391 if (!mHasFeature) { 8392 return false; 8393 } 8394 Preconditions.checkNotNull(who, "ComponentName is null"); 8395 8396 if (packageList != null) { 8397 int userId = UserHandle.getCallingUserId(); 8398 List<AccessibilityServiceInfo> enabledServices = null; 8399 long id = mInjector.binderClearCallingIdentity(); 8400 try { 8401 UserInfo user = getUserInfo(userId); 8402 if (user.isManagedProfile()) { 8403 userId = user.profileGroupId; 8404 } 8405 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 8406 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 8407 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 8408 } finally { 8409 mInjector.binderRestoreCallingIdentity(id); 8410 } 8411 8412 if (enabledServices != null) { 8413 List<String> enabledPackages = new ArrayList<String>(); 8414 for (AccessibilityServiceInfo service : enabledServices) { 8415 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 8416 } 8417 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 8418 userId)) { 8419 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 8420 + "because it contains already enabled accesibility services."); 8421 return false; 8422 } 8423 } 8424 } 8425 8426 synchronized (this) { 8427 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8428 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8429 admin.permittedAccessiblityServices = packageList; 8430 saveSettingsLocked(UserHandle.getCallingUserId()); 8431 } 8432 return true; 8433 } 8434 8435 @Override 8436 public List getPermittedAccessibilityServices(ComponentName who) { 8437 if (!mHasFeature) { 8438 return null; 8439 } 8440 Preconditions.checkNotNull(who, "ComponentName is null"); 8441 8442 synchronized (this) { 8443 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8444 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8445 return admin.permittedAccessiblityServices; 8446 } 8447 } 8448 8449 @Override 8450 public List getPermittedAccessibilityServicesForUser(int userId) { 8451 if (!mHasFeature) { 8452 return null; 8453 } 8454 synchronized (this) { 8455 List<String> result = null; 8456 // If we have multiple profiles we return the intersection of the 8457 // permitted lists. This can happen in cases where we have a device 8458 // and profile owner. 8459 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 8460 for (int profileId : profileIds) { 8461 // Just loop though all admins, only device or profiles 8462 // owners can have permitted lists set. 8463 DevicePolicyData policy = getUserDataUnchecked(profileId); 8464 final int N = policy.mAdminList.size(); 8465 for (int j = 0; j < N; j++) { 8466 ActiveAdmin admin = policy.mAdminList.get(j); 8467 List<String> fromAdmin = admin.permittedAccessiblityServices; 8468 if (fromAdmin != null) { 8469 if (result == null) { 8470 result = new ArrayList<>(fromAdmin); 8471 } else { 8472 result.retainAll(fromAdmin); 8473 } 8474 } 8475 } 8476 } 8477 8478 // If we have a permitted list add all system accessibility services. 8479 if (result != null) { 8480 long id = mInjector.binderClearCallingIdentity(); 8481 try { 8482 UserInfo user = getUserInfo(userId); 8483 if (user.isManagedProfile()) { 8484 userId = user.profileGroupId; 8485 } 8486 AccessibilityManager accessibilityManager = 8487 getAccessibilityManagerForUser(userId); 8488 List<AccessibilityServiceInfo> installedServices = 8489 accessibilityManager.getInstalledAccessibilityServiceList(); 8490 8491 if (installedServices != null) { 8492 for (AccessibilityServiceInfo service : installedServices) { 8493 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 8494 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 8495 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 8496 result.add(serviceInfo.packageName); 8497 } 8498 } 8499 } 8500 } finally { 8501 mInjector.binderRestoreCallingIdentity(id); 8502 } 8503 } 8504 8505 return result; 8506 } 8507 } 8508 8509 @Override 8510 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 8511 int userHandle) { 8512 if (!mHasFeature) { 8513 return true; 8514 } 8515 Preconditions.checkNotNull(who, "ComponentName is null"); 8516 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 8517 if (!isCallerWithSystemUid()){ 8518 throw new SecurityException( 8519 "Only the system can query if an accessibility service is disabled by admin"); 8520 } 8521 synchronized (this) { 8522 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8523 if (admin == null) { 8524 return false; 8525 } 8526 if (admin.permittedAccessiblityServices == null) { 8527 return true; 8528 } 8529 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 8530 admin.permittedAccessiblityServices, userHandle); 8531 } 8532 } 8533 8534 private boolean checkCallerIsCurrentUserOrProfile() { 8535 final int callingUserId = UserHandle.getCallingUserId(); 8536 final long token = mInjector.binderClearCallingIdentity(); 8537 try { 8538 UserInfo currentUser; 8539 UserInfo callingUser = getUserInfo(callingUserId); 8540 try { 8541 currentUser = mInjector.getIActivityManager().getCurrentUser(); 8542 } catch (RemoteException e) { 8543 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 8544 return false; 8545 } 8546 8547 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 8548 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 8549 + "of a user that isn't the foreground user."); 8550 return false; 8551 } 8552 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 8553 Slog.e(LOG_TAG, "Cannot set permitted input methods " 8554 + "of a user that isn't the foreground user."); 8555 return false; 8556 } 8557 } finally { 8558 mInjector.binderRestoreCallingIdentity(token); 8559 } 8560 return true; 8561 } 8562 8563 @Override 8564 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 8565 if (!mHasFeature) { 8566 return false; 8567 } 8568 Preconditions.checkNotNull(who, "ComponentName is null"); 8569 8570 // TODO When InputMethodManager supports per user calls remove 8571 // this restriction. 8572 if (!checkCallerIsCurrentUserOrProfile()) { 8573 return false; 8574 } 8575 8576 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8577 if (packageList != null) { 8578 // InputMethodManager fetches input methods for current user. 8579 // So this can only be set when calling user is the current user 8580 // or parent is current user in case of managed profiles. 8581 InputMethodManager inputMethodManager = 8582 mContext.getSystemService(InputMethodManager.class); 8583 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 8584 8585 if (enabledImes != null) { 8586 List<String> enabledPackages = new ArrayList<String>(); 8587 for (InputMethodInfo ime : enabledImes) { 8588 enabledPackages.add(ime.getPackageName()); 8589 } 8590 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 8591 callingUserId)) { 8592 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 8593 + "because it contains already enabled input method."); 8594 return false; 8595 } 8596 } 8597 } 8598 8599 synchronized (this) { 8600 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8601 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8602 admin.permittedInputMethods = packageList; 8603 saveSettingsLocked(callingUserId); 8604 } 8605 return true; 8606 } 8607 8608 @Override 8609 public List getPermittedInputMethods(ComponentName who) { 8610 if (!mHasFeature) { 8611 return null; 8612 } 8613 Preconditions.checkNotNull(who, "ComponentName is null"); 8614 8615 synchronized (this) { 8616 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8617 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8618 return admin.permittedInputMethods; 8619 } 8620 } 8621 8622 @Override 8623 public List getPermittedInputMethodsForCurrentUser() { 8624 UserInfo currentUser; 8625 try { 8626 currentUser = mInjector.getIActivityManager().getCurrentUser(); 8627 } catch (RemoteException e) { 8628 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 8629 // Activity managed is dead, just allow all IMEs 8630 return null; 8631 } 8632 8633 int userId = currentUser.id; 8634 synchronized (this) { 8635 List<String> result = null; 8636 // If we have multiple profiles we return the intersection of the 8637 // permitted lists. This can happen in cases where we have a device 8638 // and profile owner. 8639 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 8640 for (int profileId : profileIds) { 8641 // Just loop though all admins, only device or profiles 8642 // owners can have permitted lists set. 8643 DevicePolicyData policy = getUserDataUnchecked(profileId); 8644 final int N = policy.mAdminList.size(); 8645 for (int j = 0; j < N; j++) { 8646 ActiveAdmin admin = policy.mAdminList.get(j); 8647 List<String> fromAdmin = admin.permittedInputMethods; 8648 if (fromAdmin != null) { 8649 if (result == null) { 8650 result = new ArrayList<String>(fromAdmin); 8651 } else { 8652 result.retainAll(fromAdmin); 8653 } 8654 } 8655 } 8656 } 8657 8658 // If we have a permitted list add all system input methods. 8659 if (result != null) { 8660 InputMethodManager inputMethodManager = 8661 mContext.getSystemService(InputMethodManager.class); 8662 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 8663 long id = mInjector.binderClearCallingIdentity(); 8664 try { 8665 if (imes != null) { 8666 for (InputMethodInfo ime : imes) { 8667 ServiceInfo serviceInfo = ime.getServiceInfo(); 8668 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 8669 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 8670 result.add(serviceInfo.packageName); 8671 } 8672 } 8673 } 8674 } finally { 8675 mInjector.binderRestoreCallingIdentity(id); 8676 } 8677 } 8678 return result; 8679 } 8680 } 8681 8682 @Override 8683 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 8684 int userHandle) { 8685 if (!mHasFeature) { 8686 return true; 8687 } 8688 Preconditions.checkNotNull(who, "ComponentName is null"); 8689 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 8690 if (!isCallerWithSystemUid()) { 8691 throw new SecurityException( 8692 "Only the system can query if an input method is disabled by admin"); 8693 } 8694 synchronized (this) { 8695 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8696 if (admin == null) { 8697 return false; 8698 } 8699 if (admin.permittedInputMethods == null) { 8700 return true; 8701 } 8702 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 8703 admin.permittedInputMethods, userHandle); 8704 } 8705 } 8706 8707 @Override 8708 public boolean setPermittedCrossProfileNotificationListeners( 8709 ComponentName who, List<String> packageList) { 8710 if (!mHasFeature) { 8711 return false; 8712 } 8713 Preconditions.checkNotNull(who, "ComponentName is null"); 8714 8715 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8716 if (!isManagedProfile(callingUserId)) { 8717 return false; 8718 } 8719 8720 synchronized (this) { 8721 ActiveAdmin admin = getActiveAdminForCallerLocked( 8722 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8723 admin.permittedNotificationListeners = packageList; 8724 saveSettingsLocked(callingUserId); 8725 } 8726 return true; 8727 } 8728 8729 @Override 8730 public List<String> getPermittedCrossProfileNotificationListeners(ComponentName who) { 8731 if (!mHasFeature) { 8732 return null; 8733 } 8734 Preconditions.checkNotNull(who, "ComponentName is null"); 8735 8736 synchronized (this) { 8737 ActiveAdmin admin = getActiveAdminForCallerLocked( 8738 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8739 return admin.permittedNotificationListeners; 8740 } 8741 } 8742 8743 @Override 8744 public boolean isNotificationListenerServicePermitted(String packageName, int userId) { 8745 if (!mHasFeature) { 8746 return true; 8747 } 8748 8749 Preconditions.checkStringNotEmpty(packageName, "packageName is null or empty"); 8750 if (!isCallerWithSystemUid()) { 8751 throw new SecurityException( 8752 "Only the system can query if a notification listener service is permitted"); 8753 } 8754 synchronized (this) { 8755 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 8756 if (profileOwner == null || profileOwner.permittedNotificationListeners == null) { 8757 return true; 8758 } 8759 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 8760 profileOwner.permittedNotificationListeners, userId); 8761 8762 } 8763 } 8764 8765 private void maybeSendAdminEnabledBroadcastLocked(int userHandle) { 8766 DevicePolicyData policyData = getUserData(userHandle); 8767 if (policyData.mAdminBroadcastPending) { 8768 // Send the initialization data to profile owner and delete the data 8769 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 8770 boolean clearInitBundle = true; 8771 if (admin != null) { 8772 PersistableBundle initBundle = policyData.mInitBundle; 8773 clearInitBundle = sendAdminCommandLocked(admin, 8774 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 8775 initBundle == null ? null : new Bundle(initBundle), 8776 null /* result receiver */, 8777 true /* send in foreground */); 8778 } 8779 if (clearInitBundle) { 8780 // If there's no admin or we've successfully called the admin, clear the init bundle 8781 // otherwise, keep it around 8782 policyData.mInitBundle = null; 8783 policyData.mAdminBroadcastPending = false; 8784 saveSettingsLocked(userHandle); 8785 } 8786 } 8787 } 8788 8789 @Override 8790 public UserHandle createAndManageUser(ComponentName admin, String name, 8791 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 8792 Preconditions.checkNotNull(admin, "admin is null"); 8793 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 8794 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 8795 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 8796 + admin + " are not in the same package"); 8797 } 8798 // Only allow the system user to use this method 8799 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 8800 throw new SecurityException("createAndManageUser was called from non-system user"); 8801 } 8802 final boolean ephemeral = (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0; 8803 final boolean demo = (flags & DevicePolicyManager.MAKE_USER_DEMO) != 0 8804 && UserManager.isDeviceInDemoMode(mContext); 8805 final boolean leaveAllSystemAppsEnabled = (flags & LEAVE_ALL_SYSTEM_APPS_ENABLED) != 0; 8806 // Create user. 8807 UserHandle user = null; 8808 synchronized (this) { 8809 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8810 8811 final long id = mInjector.binderClearCallingIdentity(); 8812 try { 8813 int userInfoFlags = 0; 8814 if (ephemeral) { 8815 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 8816 } 8817 if (demo) { 8818 userInfoFlags |= UserInfo.FLAG_DEMO; 8819 } 8820 String[] disallowedPackages = null; 8821 if (!leaveAllSystemAppsEnabled) { 8822 disallowedPackages = mOverlayPackagesProvider.getNonRequiredApps(admin, 8823 UserHandle.myUserId(), ACTION_PROVISION_MANAGED_USER).toArray( 8824 new String[0]); 8825 } 8826 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 8827 userInfoFlags, disallowedPackages); 8828 if (userInfo != null) { 8829 user = userInfo.getUserHandle(); 8830 } 8831 } finally { 8832 mInjector.binderRestoreCallingIdentity(id); 8833 } 8834 } 8835 if (user == null) { 8836 return null; 8837 } 8838 8839 final int userHandle = user.getIdentifier(); 8840 final Intent intent = new Intent(DevicePolicyManager.ACTION_MANAGED_USER_CREATED) 8841 .putExtra(Intent.EXTRA_USER_HANDLE, userHandle) 8842 .putExtra( 8843 DevicePolicyManager.EXTRA_PROVISIONING_LEAVE_ALL_SYSTEM_APPS_ENABLED, 8844 leaveAllSystemAppsEnabled) 8845 .setPackage(MANAGED_PROVISIONING_PKG) 8846 .addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 8847 mContext.sendBroadcastAsUser(intent, UserHandle.SYSTEM); 8848 8849 final long id = mInjector.binderClearCallingIdentity(); 8850 try { 8851 final String adminPkg = admin.getPackageName(); 8852 try { 8853 // Install the profile owner if not present. 8854 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 8855 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle, 8856 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8857 } 8858 } catch (RemoteException e) { 8859 // Does not happen, same process 8860 } 8861 8862 // Set admin. 8863 setActiveAdmin(profileOwner, true, userHandle); 8864 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 8865 setProfileOwner(profileOwner, ownerName, userHandle); 8866 8867 synchronized (this) { 8868 DevicePolicyData policyData = getUserData(userHandle); 8869 policyData.mInitBundle = adminExtras; 8870 policyData.mAdminBroadcastPending = true; 8871 saveSettingsLocked(userHandle); 8872 } 8873 8874 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 8875 Settings.Secure.putIntForUser(mContext.getContentResolver(), 8876 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 8877 } 8878 8879 return user; 8880 } catch (Throwable re) { 8881 mUserManager.removeUser(userHandle); 8882 return null; 8883 } finally { 8884 mInjector.binderRestoreCallingIdentity(id); 8885 } 8886 } 8887 8888 @Override 8889 public boolean removeUser(ComponentName who, UserHandle userHandle) { 8890 Preconditions.checkNotNull(who, "ComponentName is null"); 8891 Preconditions.checkNotNull(userHandle, "UserHandle is null"); 8892 8893 synchronized (this) { 8894 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8895 } 8896 8897 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8898 final long id = mInjector.binderClearCallingIdentity(); 8899 try { 8900 String restriction = isManagedProfile(userHandle.getIdentifier()) 8901 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE 8902 : UserManager.DISALLOW_REMOVE_USER; 8903 if (isAdminAffectedByRestriction(who, restriction, callingUserId)) { 8904 Log.w(LOG_TAG, "The device owner cannot remove a user because " 8905 + restriction + " is enabled, and was not set by the device owner"); 8906 return false; 8907 } 8908 return mUserManagerInternal.removeUserEvenWhenDisallowed(userHandle.getIdentifier()); 8909 } finally { 8910 mInjector.binderRestoreCallingIdentity(id); 8911 } 8912 } 8913 8914 private boolean isAdminAffectedByRestriction( 8915 ComponentName admin, String userRestriction, int userId) { 8916 switch(mUserManager.getUserRestrictionSource(userRestriction, UserHandle.of(userId))) { 8917 case UserManager.RESTRICTION_NOT_SET: 8918 return false; 8919 case UserManager.RESTRICTION_SOURCE_DEVICE_OWNER: 8920 return !isDeviceOwner(admin, userId); 8921 case UserManager.RESTRICTION_SOURCE_PROFILE_OWNER: 8922 return !isProfileOwner(admin, userId); 8923 default: 8924 return true; 8925 } 8926 } 8927 8928 @Override 8929 public boolean switchUser(ComponentName who, UserHandle userHandle) { 8930 Preconditions.checkNotNull(who, "ComponentName is null"); 8931 8932 synchronized (this) { 8933 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8934 8935 long id = mInjector.binderClearCallingIdentity(); 8936 try { 8937 int userId = UserHandle.USER_SYSTEM; 8938 if (userHandle != null) { 8939 userId = userHandle.getIdentifier(); 8940 } 8941 return mInjector.getIActivityManager().switchUser(userId); 8942 } catch (RemoteException e) { 8943 Log.e(LOG_TAG, "Couldn't switch user", e); 8944 return false; 8945 } finally { 8946 mInjector.binderRestoreCallingIdentity(id); 8947 } 8948 } 8949 } 8950 8951 @Override 8952 public boolean startUserInBackground(ComponentName who, UserHandle userHandle) { 8953 Preconditions.checkNotNull(who, "ComponentName is null"); 8954 Preconditions.checkNotNull(userHandle, "UserHandle is null"); 8955 8956 synchronized (this) { 8957 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8958 } 8959 8960 final int userId = userHandle.getIdentifier(); 8961 if (isManagedProfile(userId)) { 8962 Log.w(LOG_TAG, "Managed profile cannot be started in background"); 8963 return false; 8964 } 8965 8966 final long id = mInjector.binderClearCallingIdentity(); 8967 try { 8968 if (!mInjector.getActivityManagerInternal().canStartMoreUsers()) { 8969 Log.w(LOG_TAG, "Cannot start more users in background"); 8970 return false; 8971 } 8972 8973 return mInjector.getIActivityManager().startUserInBackground(userId); 8974 } catch (RemoteException e) { 8975 // Same process, should not happen. 8976 return false; 8977 } finally { 8978 mInjector.binderRestoreCallingIdentity(id); 8979 } 8980 } 8981 8982 @Override 8983 public boolean stopUser(ComponentName who, UserHandle userHandle) { 8984 Preconditions.checkNotNull(who, "ComponentName is null"); 8985 Preconditions.checkNotNull(userHandle, "UserHandle is null"); 8986 8987 synchronized (this) { 8988 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8989 } 8990 8991 final int userId = userHandle.getIdentifier(); 8992 if (isManagedProfile(userId)) { 8993 Log.w(LOG_TAG, "Managed profile cannot be stopped"); 8994 return false; 8995 } 8996 8997 final long id = mInjector.binderClearCallingIdentity(); 8998 try { 8999 return mInjector.getIActivityManager().stopUser(userId, true /*force*/, null) 9000 == USER_OP_SUCCESS; 9001 } catch (RemoteException e) { 9002 // Same process, should not happen. 9003 return false; 9004 } finally { 9005 mInjector.binderRestoreCallingIdentity(id); 9006 } 9007 } 9008 9009 @Override 9010 public boolean logoutUser(ComponentName who) { 9011 Preconditions.checkNotNull(who, "ComponentName is null"); 9012 9013 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9014 synchronized (this) { 9015 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9016 if (!isUserAffiliatedWithDeviceLocked(callingUserId)) { 9017 throw new SecurityException("Admin " + who + 9018 " is neither the device owner or affiliated user's profile owner."); 9019 } 9020 } 9021 9022 if (isManagedProfile(callingUserId)) { 9023 Log.w(LOG_TAG, "Managed profile cannot be logout"); 9024 return false; 9025 } 9026 9027 final long id = mInjector.binderClearCallingIdentity(); 9028 try { 9029 if (!mInjector.getIActivityManager().switchUser(UserHandle.USER_SYSTEM)) { 9030 Log.w(LOG_TAG, "Failed to switch to primary user"); 9031 return false; 9032 } 9033 return mInjector.getIActivityManager().stopUser(callingUserId, true /*force*/, null) 9034 == USER_OP_SUCCESS; 9035 } catch (RemoteException e) { 9036 // Same process, should not happen. 9037 return false; 9038 } finally { 9039 mInjector.binderRestoreCallingIdentity(id); 9040 } 9041 } 9042 9043 @Override 9044 public List<UserHandle> getSecondaryUsers(ComponentName who) { 9045 Preconditions.checkNotNull(who, "ComponentName is null"); 9046 synchronized (this) { 9047 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9048 } 9049 9050 final long id = mInjector.binderClearCallingIdentity(); 9051 try { 9052 final List<UserInfo> userInfos = mInjector.getUserManager().getUsers(true 9053 /*excludeDying*/); 9054 final List<UserHandle> userHandles = new ArrayList<>(); 9055 for (UserInfo userInfo : userInfos) { 9056 UserHandle userHandle = userInfo.getUserHandle(); 9057 if (!userHandle.isSystem() && !isManagedProfile(userHandle.getIdentifier())) { 9058 userHandles.add(userInfo.getUserHandle()); 9059 } 9060 } 9061 return userHandles; 9062 } finally { 9063 mInjector.binderRestoreCallingIdentity(id); 9064 } 9065 } 9066 9067 @Override 9068 public boolean isEphemeralUser(ComponentName who) { 9069 Preconditions.checkNotNull(who, "ComponentName is null"); 9070 synchronized (this) { 9071 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9072 } 9073 9074 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9075 final long id = mInjector.binderClearCallingIdentity(); 9076 try { 9077 return mInjector.getUserManager().isUserEphemeral(callingUserId); 9078 } finally { 9079 mInjector.binderRestoreCallingIdentity(id); 9080 } 9081 } 9082 9083 @Override 9084 public Bundle getApplicationRestrictions(ComponentName who, String callerPackage, 9085 String packageName) { 9086 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9087 DELEGATION_APP_RESTRICTIONS); 9088 9089 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 9090 final long id = mInjector.binderClearCallingIdentity(); 9091 try { 9092 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 9093 // if no restrictions were saved, mUserManager.getApplicationRestrictions 9094 // returns null, but DPM method should return an empty Bundle as per JavaDoc 9095 return bundle != null ? bundle : Bundle.EMPTY; 9096 } finally { 9097 mInjector.binderRestoreCallingIdentity(id); 9098 } 9099 } 9100 9101 @Override 9102 public String[] setPackagesSuspended(ComponentName who, String callerPackage, 9103 String[] packageNames, boolean suspended) { 9104 int callingUserId = UserHandle.getCallingUserId(); 9105 synchronized (this) { 9106 // Ensure the caller is a DO/PO or a package access delegate. 9107 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9108 DELEGATION_PACKAGE_ACCESS); 9109 9110 long id = mInjector.binderClearCallingIdentity(); 9111 try { 9112 return mIPackageManager.setPackagesSuspendedAsUser( 9113 packageNames, suspended, callingUserId); 9114 } catch (RemoteException re) { 9115 // Shouldn't happen. 9116 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 9117 } finally { 9118 mInjector.binderRestoreCallingIdentity(id); 9119 } 9120 return packageNames; 9121 } 9122 } 9123 9124 @Override 9125 public boolean isPackageSuspended(ComponentName who, String callerPackage, String packageName) { 9126 int callingUserId = UserHandle.getCallingUserId(); 9127 synchronized (this) { 9128 // Ensure the caller is a DO/PO or a package access delegate. 9129 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9130 DELEGATION_PACKAGE_ACCESS); 9131 9132 long id = mInjector.binderClearCallingIdentity(); 9133 try { 9134 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 9135 } catch (RemoteException re) { 9136 // Shouldn't happen. 9137 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 9138 } finally { 9139 mInjector.binderRestoreCallingIdentity(id); 9140 } 9141 return false; 9142 } 9143 } 9144 9145 @Override 9146 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 9147 Preconditions.checkNotNull(who, "ComponentName is null"); 9148 if (!UserRestrictionsUtils.isValidRestriction(key)) { 9149 return; 9150 } 9151 9152 final int userHandle = mInjector.userHandleGetCallingUserId(); 9153 synchronized (this) { 9154 final ActiveAdmin activeAdmin = 9155 getActiveAdminForCallerLocked(who, 9156 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9157 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 9158 if (isDeviceOwner) { 9159 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 9160 throw new SecurityException("Device owner cannot set user restriction " + key); 9161 } 9162 } else { // profile owner 9163 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 9164 throw new SecurityException("Profile owner cannot set user restriction " + key); 9165 } 9166 } 9167 9168 // Save the restriction to ActiveAdmin. 9169 final Bundle restrictions = activeAdmin.ensureUserRestrictions(); 9170 if (enabledFromThisOwner) { 9171 restrictions.putBoolean(key, true); 9172 } else { 9173 restrictions.remove(key); 9174 } 9175 saveUserRestrictionsLocked(userHandle); 9176 } 9177 } 9178 9179 private void saveUserRestrictionsLocked(int userId) { 9180 saveSettingsLocked(userId); 9181 pushUserRestrictions(userId); 9182 sendChangedNotification(userId); 9183 } 9184 9185 private void pushUserRestrictions(int userId) { 9186 synchronized (this) { 9187 final boolean isDeviceOwner = mOwners.isDeviceOwnerUserId(userId); 9188 final Bundle userRestrictions; 9189 // Whether device owner enforces camera restriction. 9190 boolean disallowCameraGlobally = false; 9191 9192 if (isDeviceOwner) { 9193 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 9194 if (deviceOwner == null) { 9195 return; // Shouldn't happen. 9196 } 9197 userRestrictions = deviceOwner.userRestrictions; 9198 // DO can disable camera globally. 9199 disallowCameraGlobally = deviceOwner.disableCamera; 9200 } else { 9201 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 9202 userRestrictions = profileOwner != null ? profileOwner.userRestrictions : null; 9203 } 9204 9205 // Whether any admin enforces camera restriction. 9206 final int cameraRestrictionScope = 9207 getCameraRestrictionScopeLocked(userId, disallowCameraGlobally); 9208 9209 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, userRestrictions, 9210 isDeviceOwner, cameraRestrictionScope); 9211 } 9212 } 9213 9214 /** 9215 * Get the scope of camera restriction for a given user if any. 9216 */ 9217 private int getCameraRestrictionScopeLocked(int userId, boolean disallowCameraGlobally) { 9218 if (disallowCameraGlobally) { 9219 return UserManagerInternal.CAMERA_DISABLED_GLOBALLY; 9220 } else if (getCameraDisabled( 9221 /* who= */ null, userId, /* mergeDeviceOwnerRestriction= */ false)) { 9222 return UserManagerInternal.CAMERA_DISABLED_LOCALLY; 9223 } 9224 return UserManagerInternal.CAMERA_NOT_DISABLED; 9225 } 9226 9227 @Override 9228 public Bundle getUserRestrictions(ComponentName who) { 9229 if (!mHasFeature) { 9230 return null; 9231 } 9232 Preconditions.checkNotNull(who, "ComponentName is null"); 9233 synchronized (this) { 9234 final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who, 9235 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9236 return activeAdmin.userRestrictions; 9237 } 9238 } 9239 9240 @Override 9241 public boolean setApplicationHidden(ComponentName who, String callerPackage, String packageName, 9242 boolean hidden) { 9243 int callingUserId = UserHandle.getCallingUserId(); 9244 synchronized (this) { 9245 // Ensure the caller is a DO/PO or a package access delegate. 9246 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9247 DELEGATION_PACKAGE_ACCESS); 9248 9249 long id = mInjector.binderClearCallingIdentity(); 9250 try { 9251 return mIPackageManager.setApplicationHiddenSettingAsUser( 9252 packageName, hidden, callingUserId); 9253 } catch (RemoteException re) { 9254 // shouldn't happen 9255 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 9256 } finally { 9257 mInjector.binderRestoreCallingIdentity(id); 9258 } 9259 return false; 9260 } 9261 } 9262 9263 @Override 9264 public boolean isApplicationHidden(ComponentName who, String callerPackage, 9265 String packageName) { 9266 int callingUserId = UserHandle.getCallingUserId(); 9267 synchronized (this) { 9268 // Ensure the caller is a DO/PO or a package access delegate. 9269 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9270 DELEGATION_PACKAGE_ACCESS); 9271 9272 long id = mInjector.binderClearCallingIdentity(); 9273 try { 9274 return mIPackageManager.getApplicationHiddenSettingAsUser( 9275 packageName, callingUserId); 9276 } catch (RemoteException re) { 9277 // shouldn't happen 9278 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 9279 } finally { 9280 mInjector.binderRestoreCallingIdentity(id); 9281 } 9282 return false; 9283 } 9284 } 9285 9286 @Override 9287 public void enableSystemApp(ComponentName who, String callerPackage, String packageName) { 9288 synchronized (this) { 9289 // Ensure the caller is a DO/PO or an enable system app delegate. 9290 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9291 DELEGATION_ENABLE_SYSTEM_APP); 9292 9293 final boolean isDemo = isCurrentUserDemo(); 9294 9295 int userId = UserHandle.getCallingUserId(); 9296 long id = mInjector.binderClearCallingIdentity(); 9297 9298 try { 9299 if (VERBOSE_LOG) { 9300 Slog.v(LOG_TAG, "installing " + packageName + " for " 9301 + userId); 9302 } 9303 9304 int parentUserId = getProfileParentId(userId); 9305 if (!isDemo && !isSystemApp(mIPackageManager, packageName, parentUserId)) { 9306 throw new IllegalArgumentException("Only system apps can be enabled this way."); 9307 } 9308 9309 // Install the app. 9310 mIPackageManager.installExistingPackageAsUser(packageName, userId, 9311 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 9312 if (isDemo) { 9313 // Ensure the app is also ENABLED for demo users. 9314 mIPackageManager.setApplicationEnabledSetting(packageName, 9315 PackageManager.COMPONENT_ENABLED_STATE_ENABLED, 9316 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 9317 } 9318 } catch (RemoteException re) { 9319 // shouldn't happen 9320 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 9321 } finally { 9322 mInjector.binderRestoreCallingIdentity(id); 9323 } 9324 } 9325 } 9326 9327 @Override 9328 public int enableSystemAppWithIntent(ComponentName who, String callerPackage, Intent intent) { 9329 synchronized (this) { 9330 // Ensure the caller is a DO/PO or an enable system app delegate. 9331 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9332 DELEGATION_ENABLE_SYSTEM_APP); 9333 9334 int userId = UserHandle.getCallingUserId(); 9335 long id = mInjector.binderClearCallingIdentity(); 9336 9337 try { 9338 int parentUserId = getProfileParentId(userId); 9339 List<ResolveInfo> activitiesToEnable = mIPackageManager 9340 .queryIntentActivities(intent, 9341 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 9342 PackageManager.MATCH_DIRECT_BOOT_AWARE 9343 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 9344 parentUserId) 9345 .getList(); 9346 9347 if (VERBOSE_LOG) { 9348 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 9349 } 9350 int numberOfAppsInstalled = 0; 9351 if (activitiesToEnable != null) { 9352 for (ResolveInfo info : activitiesToEnable) { 9353 if (info.activityInfo != null) { 9354 String packageName = info.activityInfo.packageName; 9355 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 9356 numberOfAppsInstalled++; 9357 mIPackageManager.installExistingPackageAsUser(packageName, userId, 9358 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 9359 } else { 9360 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 9361 + " system app"); 9362 } 9363 } 9364 } 9365 } 9366 return numberOfAppsInstalled; 9367 } catch (RemoteException e) { 9368 // shouldn't happen 9369 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 9370 return 0; 9371 } finally { 9372 mInjector.binderRestoreCallingIdentity(id); 9373 } 9374 } 9375 } 9376 9377 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 9378 throws RemoteException { 9379 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, MATCH_UNINSTALLED_PACKAGES, 9380 userId); 9381 if (appInfo == null) { 9382 throw new IllegalArgumentException("The application " + packageName + 9383 " is not present on this device"); 9384 } 9385 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 9386 } 9387 9388 @Override 9389 public boolean installExistingPackage(ComponentName who, String callerPackage, 9390 String packageName) { 9391 synchronized (this) { 9392 // Ensure the caller is a PO or an install existing package delegate 9393 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9394 DELEGATION_INSTALL_EXISTING_PACKAGE); 9395 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9396 if (!isUserAffiliatedWithDeviceLocked(callingUserId)) { 9397 throw new SecurityException("Admin " + who + 9398 " is neither the device owner or affiliated user's profile owner."); 9399 } 9400 9401 final long id = mInjector.binderClearCallingIdentity(); 9402 try { 9403 if (VERBOSE_LOG) { 9404 Slog.v(LOG_TAG, "installing " + packageName + " for " 9405 + callingUserId); 9406 } 9407 9408 // Install the package. 9409 return mIPackageManager.installExistingPackageAsUser(packageName, callingUserId, 9410 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY) 9411 == PackageManager.INSTALL_SUCCEEDED; 9412 } catch (RemoteException re) { 9413 // shouldn't happen 9414 return false; 9415 } finally { 9416 mInjector.binderRestoreCallingIdentity(id); 9417 } 9418 } 9419 } 9420 9421 @Override 9422 public void setAccountManagementDisabled(ComponentName who, String accountType, 9423 boolean disabled) { 9424 if (!mHasFeature) { 9425 return; 9426 } 9427 Preconditions.checkNotNull(who, "ComponentName is null"); 9428 synchronized (this) { 9429 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 9430 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9431 if (disabled) { 9432 ap.accountTypesWithManagementDisabled.add(accountType); 9433 } else { 9434 ap.accountTypesWithManagementDisabled.remove(accountType); 9435 } 9436 saveSettingsLocked(UserHandle.getCallingUserId()); 9437 } 9438 } 9439 9440 @Override 9441 public String[] getAccountTypesWithManagementDisabled() { 9442 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 9443 } 9444 9445 @Override 9446 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 9447 enforceFullCrossUsersPermission(userId); 9448 if (!mHasFeature) { 9449 return null; 9450 } 9451 synchronized (this) { 9452 DevicePolicyData policy = getUserData(userId); 9453 final int N = policy.mAdminList.size(); 9454 ArraySet<String> resultSet = new ArraySet<>(); 9455 for (int i = 0; i < N; i++) { 9456 ActiveAdmin admin = policy.mAdminList.get(i); 9457 resultSet.addAll(admin.accountTypesWithManagementDisabled); 9458 } 9459 return resultSet.toArray(new String[resultSet.size()]); 9460 } 9461 } 9462 9463 @Override 9464 public void setUninstallBlocked(ComponentName who, String callerPackage, String packageName, 9465 boolean uninstallBlocked) { 9466 final int userId = UserHandle.getCallingUserId(); 9467 synchronized (this) { 9468 // Ensure the caller is a DO/PO or a block uninstall delegate 9469 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9470 DELEGATION_BLOCK_UNINSTALL); 9471 9472 long id = mInjector.binderClearCallingIdentity(); 9473 try { 9474 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 9475 } catch (RemoteException re) { 9476 // Shouldn't happen. 9477 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 9478 } finally { 9479 mInjector.binderRestoreCallingIdentity(id); 9480 } 9481 } 9482 } 9483 9484 @Override 9485 public boolean isUninstallBlocked(ComponentName who, String packageName) { 9486 // This function should return true if and only if the package is blocked by 9487 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 9488 // when the package is a system app, or when it is an active device admin. 9489 final int userId = UserHandle.getCallingUserId(); 9490 9491 synchronized (this) { 9492 if (who != null) { 9493 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9494 } 9495 9496 long id = mInjector.binderClearCallingIdentity(); 9497 try { 9498 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 9499 } catch (RemoteException re) { 9500 // Shouldn't happen. 9501 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 9502 } finally { 9503 mInjector.binderRestoreCallingIdentity(id); 9504 } 9505 } 9506 return false; 9507 } 9508 9509 @Override 9510 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 9511 if (!mHasFeature) { 9512 return; 9513 } 9514 Preconditions.checkNotNull(who, "ComponentName is null"); 9515 synchronized (this) { 9516 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9517 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9518 if (admin.disableCallerId != disabled) { 9519 admin.disableCallerId = disabled; 9520 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 9521 } 9522 } 9523 } 9524 9525 @Override 9526 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 9527 if (!mHasFeature) { 9528 return false; 9529 } 9530 Preconditions.checkNotNull(who, "ComponentName is null"); 9531 synchronized (this) { 9532 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9533 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9534 return admin.disableCallerId; 9535 } 9536 } 9537 9538 @Override 9539 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 9540 enforceCrossUsersPermission(userId); 9541 synchronized (this) { 9542 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9543 return (admin != null) ? admin.disableCallerId : false; 9544 } 9545 } 9546 9547 @Override 9548 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 9549 if (!mHasFeature) { 9550 return; 9551 } 9552 Preconditions.checkNotNull(who, "ComponentName is null"); 9553 synchronized (this) { 9554 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9555 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9556 if (admin.disableContactsSearch != disabled) { 9557 admin.disableContactsSearch = disabled; 9558 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 9559 } 9560 } 9561 } 9562 9563 @Override 9564 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 9565 if (!mHasFeature) { 9566 return false; 9567 } 9568 Preconditions.checkNotNull(who, "ComponentName is null"); 9569 synchronized (this) { 9570 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9571 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9572 return admin.disableContactsSearch; 9573 } 9574 } 9575 9576 @Override 9577 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 9578 enforceCrossUsersPermission(userId); 9579 synchronized (this) { 9580 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9581 return (admin != null) ? admin.disableContactsSearch : false; 9582 } 9583 } 9584 9585 @Override 9586 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 9587 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 9588 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 9589 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 9590 final int callingUserId = UserHandle.getCallingUserId(); 9591 9592 final long ident = mInjector.binderClearCallingIdentity(); 9593 try { 9594 synchronized (this) { 9595 final int managedUserId = getManagedUserId(callingUserId); 9596 if (managedUserId < 0) { 9597 return; 9598 } 9599 if (isCrossProfileQuickContactDisabled(managedUserId)) { 9600 if (VERBOSE_LOG) { 9601 Log.v(LOG_TAG, 9602 "Cross-profile contacts access disabled for user " + managedUserId); 9603 } 9604 return; 9605 } 9606 ContactsInternal.startQuickContactWithErrorToastForUser( 9607 mContext, intent, new UserHandle(managedUserId)); 9608 } 9609 } finally { 9610 mInjector.binderRestoreCallingIdentity(ident); 9611 } 9612 } 9613 9614 /** 9615 * @return true if cross-profile QuickContact is disabled 9616 */ 9617 private boolean isCrossProfileQuickContactDisabled(int userId) { 9618 return getCrossProfileCallerIdDisabledForUser(userId) 9619 && getCrossProfileContactsSearchDisabledForUser(userId); 9620 } 9621 9622 /** 9623 * @return the user ID of the managed user that is linked to the current user, if any. 9624 * Otherwise -1. 9625 */ 9626 public int getManagedUserId(int callingUserId) { 9627 if (VERBOSE_LOG) { 9628 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 9629 } 9630 9631 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 9632 if (ui.id == callingUserId || !ui.isManagedProfile()) { 9633 continue; // Caller user self, or not a managed profile. Skip. 9634 } 9635 if (VERBOSE_LOG) { 9636 Log.v(LOG_TAG, "Managed user=" + ui.id); 9637 } 9638 return ui.id; 9639 } 9640 if (VERBOSE_LOG) { 9641 Log.v(LOG_TAG, "Managed user not found."); 9642 } 9643 return -1; 9644 } 9645 9646 @Override 9647 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 9648 if (!mHasFeature) { 9649 return; 9650 } 9651 Preconditions.checkNotNull(who, "ComponentName is null"); 9652 synchronized (this) { 9653 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9654 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9655 if (admin.disableBluetoothContactSharing != disabled) { 9656 admin.disableBluetoothContactSharing = disabled; 9657 saveSettingsLocked(UserHandle.getCallingUserId()); 9658 } 9659 } 9660 } 9661 9662 @Override 9663 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 9664 if (!mHasFeature) { 9665 return false; 9666 } 9667 Preconditions.checkNotNull(who, "ComponentName is null"); 9668 synchronized (this) { 9669 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9670 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9671 return admin.disableBluetoothContactSharing; 9672 } 9673 } 9674 9675 @Override 9676 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 9677 // TODO: Should there be a check to make sure this relationship is 9678 // within a profile group? 9679 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 9680 synchronized (this) { 9681 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9682 return (admin != null) ? admin.disableBluetoothContactSharing : false; 9683 } 9684 } 9685 9686 @Override 9687 public void setLockTaskPackages(ComponentName who, String[] packages) 9688 throws SecurityException { 9689 Preconditions.checkNotNull(who, "ComponentName is null"); 9690 Preconditions.checkNotNull(packages, "packages is null"); 9691 9692 synchronized (this) { 9693 enforceCanCallLockTaskLocked(who); 9694 final int userHandle = mInjector.userHandleGetCallingUserId(); 9695 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 9696 } 9697 } 9698 9699 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 9700 DevicePolicyData policy = getUserData(userHandle); 9701 policy.mLockTaskPackages = packages; 9702 9703 // Store the settings persistently. 9704 saveSettingsLocked(userHandle); 9705 updateLockTaskPackagesLocked(packages, userHandle); 9706 } 9707 9708 @Override 9709 public String[] getLockTaskPackages(ComponentName who) { 9710 Preconditions.checkNotNull(who, "ComponentName is null"); 9711 9712 final int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 9713 synchronized (this) { 9714 enforceCanCallLockTaskLocked(who); 9715 final List<String> packages = getUserData(userHandle).mLockTaskPackages; 9716 return packages.toArray(new String[packages.size()]); 9717 } 9718 } 9719 9720 @Override 9721 public boolean isLockTaskPermitted(String pkg) { 9722 final int userHandle = mInjector.userHandleGetCallingUserId(); 9723 synchronized (this) { 9724 return getUserData(userHandle).mLockTaskPackages.contains(pkg); 9725 } 9726 } 9727 9728 @Override 9729 public void setLockTaskFeatures(ComponentName who, int flags) { 9730 Preconditions.checkNotNull(who, "ComponentName is null"); 9731 final int userHandle = mInjector.userHandleGetCallingUserId(); 9732 synchronized (this) { 9733 enforceCanCallLockTaskLocked(who); 9734 setLockTaskFeaturesLocked(userHandle, flags); 9735 } 9736 } 9737 9738 private void setLockTaskFeaturesLocked(int userHandle, int flags) { 9739 DevicePolicyData policy = getUserData(userHandle); 9740 policy.mLockTaskFeatures = flags; 9741 saveSettingsLocked(userHandle); 9742 updateLockTaskFeaturesLocked(flags, userHandle); 9743 } 9744 9745 @Override 9746 public int getLockTaskFeatures(ComponentName who) { 9747 Preconditions.checkNotNull(who, "ComponentName is null"); 9748 final int userHandle = mInjector.userHandleGetCallingUserId(); 9749 synchronized (this) { 9750 enforceCanCallLockTaskLocked(who); 9751 return getUserData(userHandle).mLockTaskFeatures; 9752 } 9753 } 9754 9755 private void maybeClearLockTaskPolicyLocked() { 9756 final long ident = mInjector.binderClearCallingIdentity(); 9757 try { 9758 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 9759 for (int i = userInfos.size() - 1; i >= 0; i--) { 9760 int userId = userInfos.get(i).id; 9761 if (canUserUseLockTaskLocked(userId)) { 9762 continue; 9763 } 9764 9765 final List<String> lockTaskPackages = getUserData(userId).mLockTaskPackages; 9766 if (!lockTaskPackages.isEmpty()) { 9767 Slog.d(LOG_TAG, 9768 "User id " + userId + " not affiliated. Clearing lock task packages"); 9769 setLockTaskPackagesLocked(userId, Collections.<String>emptyList()); 9770 } 9771 final int lockTaskFeatures = getUserData(userId).mLockTaskFeatures; 9772 if (lockTaskFeatures != DevicePolicyManager.LOCK_TASK_FEATURE_NONE){ 9773 Slog.d(LOG_TAG, 9774 "User id " + userId + " not affiliated. Clearing lock task features"); 9775 setLockTaskFeaturesLocked(userId, DevicePolicyManager.LOCK_TASK_FEATURE_NONE); 9776 } 9777 } 9778 } finally { 9779 mInjector.binderRestoreCallingIdentity(ident); 9780 } 9781 } 9782 9783 @Override 9784 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 9785 if (!isCallerWithSystemUid()) { 9786 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 9787 } 9788 synchronized (this) { 9789 final DevicePolicyData policy = getUserData(userHandle); 9790 9791 if (policy.mStatusBarDisabled) { 9792 // Status bar is managed by LockTaskController during LockTask, so we cancel this 9793 // policy when LockTask starts, and reapply it when LockTask ends 9794 setStatusBarDisabledInternal(!isEnabled, userHandle); 9795 } 9796 9797 Bundle adminExtras = new Bundle(); 9798 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 9799 for (ActiveAdmin admin : policy.mAdminList) { 9800 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 9801 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 9802 if (ownsDevice || ownsProfile) { 9803 if (isEnabled) { 9804 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 9805 adminExtras, null); 9806 } else { 9807 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 9808 } 9809 } 9810 } 9811 } 9812 } 9813 9814 @Override 9815 public void setGlobalSetting(ComponentName who, String setting, String value) { 9816 Preconditions.checkNotNull(who, "ComponentName is null"); 9817 9818 synchronized (this) { 9819 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9820 9821 // Some settings are no supported any more. However we do not want to throw a 9822 // SecurityException to avoid breaking apps. 9823 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 9824 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 9825 return; 9826 } 9827 9828 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting) 9829 && !UserManager.isDeviceInDemoMode(mContext)) { 9830 throw new SecurityException(String.format( 9831 "Permission denial: device owners cannot update %1$s", setting)); 9832 } 9833 9834 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 9835 // ignore if it contradicts an existing policy 9836 long timeMs = getMaximumTimeToLock( 9837 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 9838 if (timeMs > 0 && timeMs < Long.MAX_VALUE) { 9839 return; 9840 } 9841 } 9842 9843 long id = mInjector.binderClearCallingIdentity(); 9844 try { 9845 mInjector.settingsGlobalPutString(setting, value); 9846 } finally { 9847 mInjector.binderRestoreCallingIdentity(id); 9848 } 9849 } 9850 } 9851 9852 @Override 9853 public void setSystemSetting(ComponentName who, String setting, String value) { 9854 Preconditions.checkNotNull(who, "ComponentName is null"); 9855 Preconditions.checkStringNotEmpty(setting, "String setting is null or empty"); 9856 9857 synchronized (this) { 9858 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9859 9860 if (!SYSTEM_SETTINGS_WHITELIST.contains(setting)) { 9861 throw new SecurityException(String.format( 9862 "Permission denial: device owners cannot update %1$s", setting)); 9863 } 9864 9865 mInjector.binderWithCleanCallingIdentity(() -> mInjector.settingsSystemPutString( 9866 setting, value)); 9867 } 9868 } 9869 9870 @Override 9871 public boolean setTime(ComponentName who, long millis) { 9872 Preconditions.checkNotNull(who, "ComponentName is null in setTime"); 9873 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9874 // Don't allow set time when auto time is on. 9875 if (mInjector.settingsGlobalGetInt(Global.AUTO_TIME, 0) == 1) { 9876 return false; 9877 } 9878 mInjector.binderWithCleanCallingIdentity(() -> mInjector.getAlarmManager().setTime(millis)); 9879 return true; 9880 } 9881 9882 @Override 9883 public boolean setTimeZone(ComponentName who, String timeZone) { 9884 Preconditions.checkNotNull(who, "ComponentName is null in setTimeZone"); 9885 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9886 // Don't allow set timezone when auto timezone is on. 9887 if (mInjector.settingsGlobalGetInt(Global.AUTO_TIME_ZONE, 0) == 1) { 9888 return false; 9889 } 9890 mInjector.binderWithCleanCallingIdentity(() -> 9891 mInjector.getAlarmManager().setTimeZone(timeZone)); 9892 return true; 9893 } 9894 9895 @Override 9896 public void setSecureSetting(ComponentName who, String setting, String value) { 9897 Preconditions.checkNotNull(who, "ComponentName is null"); 9898 int callingUserId = mInjector.userHandleGetCallingUserId(); 9899 9900 synchronized (this) { 9901 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9902 9903 if (isDeviceOwner(who, callingUserId)) { 9904 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting) 9905 && !isCurrentUserDemo()) { 9906 throw new SecurityException(String.format( 9907 "Permission denial: Device owners cannot update %1$s", setting)); 9908 } 9909 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting) && !isCurrentUserDemo()) { 9910 throw new SecurityException(String.format( 9911 "Permission denial: Profile owners cannot update %1$s", setting)); 9912 } 9913 if (setting.equals(Settings.Secure.INSTALL_NON_MARKET_APPS)) { 9914 if (getTargetSdk(who.getPackageName(), callingUserId) >= Build.VERSION_CODES.O) { 9915 throw new UnsupportedOperationException(Settings.Secure.INSTALL_NON_MARKET_APPS 9916 + " is deprecated. Please use the user restriction " 9917 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES + " instead."); 9918 } 9919 if (!mUserManager.isManagedProfile(callingUserId)) { 9920 Slog.e(LOG_TAG, "Ignoring setSecureSetting request for " 9921 + setting + ". User restriction " 9922 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES 9923 + " should be used instead."); 9924 } else { 9925 try { 9926 setUserRestriction(who, UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, 9927 (Integer.parseInt(value) == 0) ? true : false); 9928 } catch (NumberFormatException exc) { 9929 Slog.e(LOG_TAG, "Invalid value: " + value + " for setting " + setting); 9930 } 9931 } 9932 return; 9933 } 9934 long id = mInjector.binderClearCallingIdentity(); 9935 try { 9936 if (Settings.Secure.DEFAULT_INPUT_METHOD.equals(setting)) { 9937 final String currentValue = mInjector.settingsSecureGetStringForUser( 9938 Settings.Secure.DEFAULT_INPUT_METHOD, callingUserId); 9939 if (!TextUtils.equals(currentValue, value)) { 9940 // Tell the content observer that the next change will be due to the owner 9941 // changing the value. There is a small race condition here that we cannot 9942 // avoid: Change notifications are sent asynchronously, so it is possible 9943 // that there are prior notifications queued up before the one we are about 9944 // to trigger. This is a corner case that will have no impact in practice. 9945 mSetupContentObserver.addPendingChangeByOwnerLocked(callingUserId); 9946 } 9947 getUserData(callingUserId).mCurrentInputMethodSet = true; 9948 saveSettingsLocked(callingUserId); 9949 } 9950 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 9951 } finally { 9952 mInjector.binderRestoreCallingIdentity(id); 9953 } 9954 } 9955 } 9956 9957 @Override 9958 public void setMasterVolumeMuted(ComponentName who, boolean on) { 9959 Preconditions.checkNotNull(who, "ComponentName is null"); 9960 synchronized (this) { 9961 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9962 setUserRestriction(who, UserManager.DISALLOW_UNMUTE_DEVICE, on); 9963 } 9964 } 9965 9966 @Override 9967 public boolean isMasterVolumeMuted(ComponentName who) { 9968 Preconditions.checkNotNull(who, "ComponentName is null"); 9969 synchronized (this) { 9970 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9971 9972 AudioManager audioManager = 9973 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 9974 return audioManager.isMasterMute(); 9975 } 9976 } 9977 9978 @Override 9979 public void setUserIcon(ComponentName who, Bitmap icon) { 9980 synchronized (this) { 9981 Preconditions.checkNotNull(who, "ComponentName is null"); 9982 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9983 9984 int userId = UserHandle.getCallingUserId(); 9985 long id = mInjector.binderClearCallingIdentity(); 9986 try { 9987 mUserManagerInternal.setUserIcon(userId, icon); 9988 } finally { 9989 mInjector.binderRestoreCallingIdentity(id); 9990 } 9991 } 9992 } 9993 9994 @Override 9995 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 9996 Preconditions.checkNotNull(who, "ComponentName is null"); 9997 final int userId = mInjector.userHandleGetCallingUserId(); 9998 synchronized (this) { 9999 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10000 if (!isUserAffiliatedWithDeviceLocked(userId)) { 10001 throw new SecurityException("Admin " + who + 10002 " is neither the device owner or affiliated user's profile owner."); 10003 } 10004 } 10005 if (isManagedProfile(userId)) { 10006 throw new SecurityException("Managed profile cannot disable keyguard"); 10007 } 10008 10009 long ident = mInjector.binderClearCallingIdentity(); 10010 try { 10011 // disallow disabling the keyguard if a password is currently set 10012 if (disabled && mLockPatternUtils.isSecure(userId)) { 10013 return false; 10014 } 10015 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 10016 mInjector.getIWindowManager().dismissKeyguard(null /* callback */, null /* message */); 10017 } catch (RemoteException e) { 10018 // Same process, does not happen. 10019 } finally { 10020 mInjector.binderRestoreCallingIdentity(ident); 10021 } 10022 return true; 10023 } 10024 10025 @Override 10026 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 10027 int userId = UserHandle.getCallingUserId(); 10028 synchronized (this) { 10029 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10030 if (!isUserAffiliatedWithDeviceLocked(userId)) { 10031 throw new SecurityException("Admin " + who + 10032 " is neither the device owner or affiliated user's profile owner."); 10033 } 10034 if (isManagedProfile(userId)) { 10035 throw new SecurityException("Managed profile cannot disable status bar"); 10036 } 10037 DevicePolicyData policy = getUserData(userId); 10038 if (policy.mStatusBarDisabled != disabled) { 10039 boolean isLockTaskMode = false; 10040 try { 10041 isLockTaskMode = mInjector.getIActivityManager().getLockTaskModeState() 10042 != LOCK_TASK_MODE_NONE; 10043 } catch (RemoteException e) { 10044 Slog.e(LOG_TAG, "Failed to get LockTask mode"); 10045 } 10046 if (!isLockTaskMode) { 10047 if (!setStatusBarDisabledInternal(disabled, userId)) { 10048 return false; 10049 } 10050 } 10051 policy.mStatusBarDisabled = disabled; 10052 saveSettingsLocked(userId); 10053 } 10054 } 10055 return true; 10056 } 10057 10058 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 10059 long ident = mInjector.binderClearCallingIdentity(); 10060 try { 10061 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 10062 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 10063 if (statusBarService != null) { 10064 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 10065 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 10066 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 10067 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 10068 return true; 10069 } 10070 } catch (RemoteException e) { 10071 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 10072 } finally { 10073 mInjector.binderRestoreCallingIdentity(ident); 10074 } 10075 return false; 10076 } 10077 10078 /** 10079 * We need to update the internal state of whether a user has completed setup or a 10080 * device has paired once. After that, we ignore any changes that reset the 10081 * Settings.Secure.USER_SETUP_COMPLETE or Settings.Secure.DEVICE_PAIRED change 10082 * as we don't trust any apps that might try to reset them. 10083 * <p> 10084 * Unfortunately, we don't know which user's setup state was changed, so we write all of 10085 * them. 10086 */ 10087 void updateUserSetupCompleteAndPaired() { 10088 List<UserInfo> users = mUserManager.getUsers(true); 10089 final int N = users.size(); 10090 for (int i = 0; i < N; i++) { 10091 int userHandle = users.get(i).id; 10092 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 10093 userHandle) != 0) { 10094 DevicePolicyData policy = getUserData(userHandle); 10095 if (!policy.mUserSetupComplete) { 10096 policy.mUserSetupComplete = true; 10097 synchronized (this) { 10098 saveSettingsLocked(userHandle); 10099 } 10100 } 10101 } 10102 if (mIsWatch && mInjector.settingsSecureGetIntForUser(Settings.Secure.DEVICE_PAIRED, 0, 10103 userHandle) != 0) { 10104 DevicePolicyData policy = getUserData(userHandle); 10105 if (!policy.mPaired) { 10106 policy.mPaired = true; 10107 synchronized (this) { 10108 saveSettingsLocked(userHandle); 10109 } 10110 } 10111 } 10112 } 10113 } 10114 10115 private class SetupContentObserver extends ContentObserver { 10116 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 10117 Settings.Secure.USER_SETUP_COMPLETE); 10118 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 10119 Settings.Global.DEVICE_PROVISIONED); 10120 private final Uri mPaired = Settings.Secure.getUriFor(Settings.Secure.DEVICE_PAIRED); 10121 private final Uri mDefaultImeChanged = Settings.Secure.getUriFor( 10122 Settings.Secure.DEFAULT_INPUT_METHOD); 10123 10124 @GuardedBy("DevicePolicyManagerService.this") 10125 private Set<Integer> mUserIdsWithPendingChangesByOwner = new ArraySet<>(); 10126 10127 public SetupContentObserver(Handler handler) { 10128 super(handler); 10129 } 10130 10131 void register() { 10132 mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 10133 mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 10134 if (mIsWatch) { 10135 mInjector.registerContentObserver(mPaired, false, this, UserHandle.USER_ALL); 10136 } 10137 mInjector.registerContentObserver(mDefaultImeChanged, false, this, UserHandle.USER_ALL); 10138 } 10139 10140 private void addPendingChangeByOwnerLocked(int userId) { 10141 mUserIdsWithPendingChangesByOwner.add(userId); 10142 } 10143 10144 @Override 10145 public void onChange(boolean selfChange, Uri uri, int userId) { 10146 if (mUserSetupComplete.equals(uri) || (mIsWatch && mPaired.equals(uri))) { 10147 updateUserSetupCompleteAndPaired(); 10148 } else if (mDeviceProvisioned.equals(uri)) { 10149 synchronized (DevicePolicyManagerService.this) { 10150 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 10151 // is delayed until device is marked as provisioned. 10152 setDeviceOwnerSystemPropertyLocked(); 10153 } 10154 } else if (mDefaultImeChanged.equals(uri)) { 10155 synchronized (DevicePolicyManagerService.this) { 10156 if (mUserIdsWithPendingChangesByOwner.contains(userId)) { 10157 // This change notification was triggered by the owner changing the current 10158 // IME. Ignore it. 10159 mUserIdsWithPendingChangesByOwner.remove(userId); 10160 } else { 10161 // This change notification was triggered by the user manually changing the 10162 // current IME. 10163 getUserData(userId).mCurrentInputMethodSet = false; 10164 saveSettingsLocked(userId); 10165 } 10166 } 10167 } 10168 } 10169 } 10170 10171 @VisibleForTesting 10172 final class LocalService extends DevicePolicyManagerInternal { 10173 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 10174 10175 @Override 10176 public List<String> getCrossProfileWidgetProviders(int profileId) { 10177 synchronized (DevicePolicyManagerService.this) { 10178 if (mOwners == null) { 10179 return Collections.emptyList(); 10180 } 10181 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 10182 if (ownerComponent == null) { 10183 return Collections.emptyList(); 10184 } 10185 10186 DevicePolicyData policy = getUserDataUnchecked(profileId); 10187 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 10188 10189 if (admin == null || admin.crossProfileWidgetProviders == null 10190 || admin.crossProfileWidgetProviders.isEmpty()) { 10191 return Collections.emptyList(); 10192 } 10193 10194 return admin.crossProfileWidgetProviders; 10195 } 10196 } 10197 10198 @Override 10199 public void addOnCrossProfileWidgetProvidersChangeListener( 10200 OnCrossProfileWidgetProvidersChangeListener listener) { 10201 synchronized (DevicePolicyManagerService.this) { 10202 if (mWidgetProviderListeners == null) { 10203 mWidgetProviderListeners = new ArrayList<>(); 10204 } 10205 if (!mWidgetProviderListeners.contains(listener)) { 10206 mWidgetProviderListeners.add(listener); 10207 } 10208 } 10209 } 10210 10211 @Override 10212 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 10213 synchronized(DevicePolicyManagerService.this) { 10214 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 10215 } 10216 } 10217 10218 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 10219 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 10220 synchronized (DevicePolicyManagerService.this) { 10221 listeners = new ArrayList<>(mWidgetProviderListeners); 10222 } 10223 final int listenerCount = listeners.size(); 10224 for (int i = 0; i < listenerCount; i++) { 10225 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 10226 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 10227 } 10228 } 10229 10230 @Override 10231 public Intent createShowAdminSupportIntent(int userId, boolean useDefaultIfNoAdmin) { 10232 // This method is called from AM with its lock held, so don't take the DPMS lock. 10233 // b/29242568 10234 10235 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 10236 if (profileOwner != null) { 10237 return DevicePolicyManagerService.this 10238 .createShowAdminSupportIntent(profileOwner, userId); 10239 } 10240 10241 final Pair<Integer, ComponentName> deviceOwner = 10242 mOwners.getDeviceOwnerUserIdAndComponent(); 10243 if (deviceOwner != null && deviceOwner.first == userId) { 10244 return DevicePolicyManagerService.this 10245 .createShowAdminSupportIntent(deviceOwner.second, userId); 10246 } 10247 10248 // We're not specifying the device admin because there isn't one. 10249 if (useDefaultIfNoAdmin) { 10250 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 10251 } 10252 return null; 10253 } 10254 10255 @Override 10256 public Intent createUserRestrictionSupportIntent(int userId, String userRestriction) { 10257 int source; 10258 long ident = mInjector.binderClearCallingIdentity(); 10259 try { 10260 source = mUserManager.getUserRestrictionSource(userRestriction, 10261 UserHandle.of(userId)); 10262 } finally { 10263 mInjector.binderRestoreCallingIdentity(ident); 10264 } 10265 if ((source & UserManager.RESTRICTION_SOURCE_SYSTEM) != 0) { 10266 /* 10267 * In this case, the user restriction is enforced by the system. 10268 * So we won't show an admin support intent, even if it is also 10269 * enforced by a profile/device owner. 10270 */ 10271 return null; 10272 } 10273 boolean enforcedByDo = (source & UserManager.RESTRICTION_SOURCE_DEVICE_OWNER) != 0; 10274 boolean enforcedByPo = (source & UserManager.RESTRICTION_SOURCE_PROFILE_OWNER) != 0; 10275 if (enforcedByDo && enforcedByPo) { 10276 // In this case, we'll show an admin support dialog that does not 10277 // specify the admin. 10278 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 10279 } else if (enforcedByPo) { 10280 final ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 10281 if (profileOwner != null) { 10282 return DevicePolicyManagerService.this 10283 .createShowAdminSupportIntent(profileOwner, userId); 10284 } 10285 // This could happen if another thread has changed the profile owner since we called 10286 // getUserRestrictionSource 10287 return null; 10288 } else if (enforcedByDo) { 10289 final Pair<Integer, ComponentName> deviceOwner 10290 = mOwners.getDeviceOwnerUserIdAndComponent(); 10291 if (deviceOwner != null) { 10292 return DevicePolicyManagerService.this 10293 .createShowAdminSupportIntent(deviceOwner.second, deviceOwner.first); 10294 } 10295 // This could happen if another thread has changed the device owner since we called 10296 // getUserRestrictionSource 10297 return null; 10298 } 10299 return null; 10300 } 10301 10302 @Override 10303 public boolean isUserAffiliatedWithDevice(int userId) { 10304 return DevicePolicyManagerService.this.isUserAffiliatedWithDeviceLocked(userId); 10305 } 10306 10307 @Override 10308 public void reportSeparateProfileChallengeChanged(@UserIdInt int userId) { 10309 synchronized (DevicePolicyManagerService.this) { 10310 updateMaximumTimeToLockLocked(userId); 10311 } 10312 } 10313 10314 @Override 10315 public boolean canUserHaveUntrustedCredentialReset(@UserIdInt int userId) { 10316 return DevicePolicyManagerService.this.canUserHaveUntrustedCredentialReset(userId); 10317 } 10318 10319 @Override 10320 public CharSequence getPrintingDisabledReasonForUser(@UserIdInt int userId) { 10321 synchronized (DevicePolicyManagerService.this) { 10322 DevicePolicyData policy = getUserData(userId); 10323 if (policy.mPrintingEnabled) { 10324 Log.e(LOG_TAG, "printing is enabled"); 10325 return null; 10326 } 10327 String ownerPackage = mOwners.getProfileOwnerPackage(userId); 10328 if (ownerPackage == null) { 10329 ownerPackage = mOwners.getDeviceOwnerPackageName(); 10330 } 10331 PackageManager pm = mInjector.getPackageManager(); 10332 PackageInfo packageInfo; 10333 try { 10334 packageInfo = pm.getPackageInfo(ownerPackage, 0); 10335 } catch (NameNotFoundException e) { 10336 Log.e(LOG_TAG, "getPackageInfo error", e); 10337 return null; 10338 } 10339 if (packageInfo == null) { 10340 Log.e(LOG_TAG, "packageInfo is inexplicably null"); 10341 return null; 10342 } 10343 ApplicationInfo appInfo = packageInfo.applicationInfo; 10344 if (appInfo == null) { 10345 Log.e(LOG_TAG, "appInfo is inexplicably null"); 10346 return null; 10347 } 10348 CharSequence appLabel = pm.getApplicationLabel(appInfo); 10349 if (appLabel == null) { 10350 Log.e(LOG_TAG, "appLabel is inexplicably null"); 10351 return null; 10352 } 10353 return ((Context) ActivityThread.currentActivityThread().getSystemUiContext()) 10354 .getResources().getString(R.string.printing_disabled_by, appLabel); 10355 } 10356 } 10357 } 10358 10359 private Intent createShowAdminSupportIntent(ComponentName admin, int userId) { 10360 // This method is called with AMS lock held, so don't take DPMS lock 10361 final Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS); 10362 intent.putExtra(Intent.EXTRA_USER_ID, userId); 10363 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, admin); 10364 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 10365 return intent; 10366 } 10367 10368 @Override 10369 public Intent createAdminSupportIntent(String restriction) { 10370 Preconditions.checkNotNull(restriction); 10371 final int uid = mInjector.binderGetCallingUid(); 10372 final int userId = UserHandle.getUserId(uid); 10373 Intent intent = null; 10374 if (DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction) || 10375 DevicePolicyManager.POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction) || 10376 DevicePolicyManager.POLICY_MANDATORY_BACKUPS.equals(restriction)) { 10377 synchronized(this) { 10378 final DevicePolicyData policy = getUserData(userId); 10379 final int N = policy.mAdminList.size(); 10380 for (int i = 0; i < N; i++) { 10381 final ActiveAdmin admin = policy.mAdminList.get(i); 10382 if ((admin.disableCamera && 10383 DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) || 10384 (admin.disableScreenCapture && DevicePolicyManager 10385 .POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction)) || 10386 (admin.mandatoryBackupTransport != null && DevicePolicyManager 10387 .POLICY_MANDATORY_BACKUPS.equals(restriction))) { 10388 intent = createShowAdminSupportIntent(admin.info.getComponent(), userId); 10389 break; 10390 } 10391 } 10392 // For the camera, a device owner on a different user can disable it globally, 10393 // so we need an additional check. 10394 if (intent == null 10395 && DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) { 10396 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 10397 if (admin != null && admin.disableCamera) { 10398 intent = createShowAdminSupportIntent(admin.info.getComponent(), 10399 mOwners.getDeviceOwnerUserId()); 10400 } 10401 } 10402 } 10403 } else { 10404 // if valid, |restriction| can only be a user restriction 10405 intent = mLocalService.createUserRestrictionSupportIntent(userId, restriction); 10406 } 10407 if (intent != null) { 10408 intent.putExtra(DevicePolicyManager.EXTRA_RESTRICTION, restriction); 10409 } 10410 return intent; 10411 } 10412 10413 /** 10414 * Returns true if specified admin is allowed to limit passwords and has a 10415 * {@code minimumPasswordMetrics.quality} of at least {@code minPasswordQuality} 10416 */ 10417 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 10418 if (admin.minimumPasswordMetrics.quality < minPasswordQuality) { 10419 return false; 10420 } 10421 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 10422 } 10423 10424 @Override 10425 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 10426 if (policy != null && !policy.isValid()) { 10427 throw new IllegalArgumentException("Invalid system update policy."); 10428 } 10429 synchronized (this) { 10430 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10431 if (policy == null) { 10432 mOwners.clearSystemUpdatePolicy(); 10433 } else { 10434 mOwners.setSystemUpdatePolicy(policy); 10435 } 10436 mOwners.writeDeviceOwner(); 10437 } 10438 mContext.sendBroadcastAsUser( 10439 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 10440 UserHandle.SYSTEM); 10441 } 10442 10443 @Override 10444 public SystemUpdatePolicy getSystemUpdatePolicy() { 10445 synchronized (this) { 10446 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 10447 if (policy != null && !policy.isValid()) { 10448 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 10449 return null; 10450 } 10451 return policy; 10452 } 10453 } 10454 10455 /** 10456 * Checks if the caller of the method is the device owner app. 10457 * 10458 * @param callerUid UID of the caller. 10459 * @return true if the caller is the device owner app 10460 */ 10461 @VisibleForTesting 10462 boolean isCallerDeviceOwner(int callerUid) { 10463 synchronized (this) { 10464 if (!mOwners.hasDeviceOwner()) { 10465 return false; 10466 } 10467 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 10468 return false; 10469 } 10470 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 10471 .getPackageName(); 10472 try { 10473 String[] pkgs = mInjector.getIPackageManager().getPackagesForUid(callerUid); 10474 for (String pkg : pkgs) { 10475 if (deviceOwnerPackageName.equals(pkg)) { 10476 return true; 10477 } 10478 } 10479 } catch (RemoteException e) { 10480 return false; 10481 } 10482 } 10483 10484 return false; 10485 } 10486 10487 @Override 10488 public void notifyPendingSystemUpdate(@Nullable SystemUpdateInfo info) { 10489 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 10490 "Only the system update service can broadcast update information"); 10491 10492 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 10493 Slog.w(LOG_TAG, "Only the system update service in the system user " + 10494 "can broadcast update information."); 10495 return; 10496 } 10497 10498 if (!mOwners.saveSystemUpdateInfo(info)) { 10499 // Pending system update hasn't changed, don't send duplicate notification. 10500 return; 10501 } 10502 10503 final Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE) 10504 .putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 10505 info == null ? -1 : info.getReceivedTime()); 10506 10507 final long ident = mInjector.binderClearCallingIdentity(); 10508 try { 10509 synchronized (this) { 10510 // Broadcast to device owner first if there is one. 10511 if (mOwners.hasDeviceOwner()) { 10512 final UserHandle deviceOwnerUser = 10513 UserHandle.of(mOwners.getDeviceOwnerUserId()); 10514 intent.setComponent(mOwners.getDeviceOwnerComponent()); 10515 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 10516 } 10517 } 10518 // Get running users. 10519 final int runningUserIds[]; 10520 try { 10521 runningUserIds = mInjector.getIActivityManager().getRunningUserIds(); 10522 } catch (RemoteException e) { 10523 // Shouldn't happen. 10524 Log.e(LOG_TAG, "Could not retrieve the list of running users", e); 10525 return; 10526 } 10527 // Send broadcasts to corresponding profile owners if any. 10528 for (final int userId : runningUserIds) { 10529 synchronized (this) { 10530 final ComponentName profileOwnerPackage = 10531 mOwners.getProfileOwnerComponent(userId); 10532 if (profileOwnerPackage != null) { 10533 intent.setComponent(profileOwnerPackage); 10534 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 10535 } 10536 } 10537 } 10538 } finally { 10539 mInjector.binderRestoreCallingIdentity(ident); 10540 } 10541 } 10542 10543 @Override 10544 public SystemUpdateInfo getPendingSystemUpdate(ComponentName admin) { 10545 Preconditions.checkNotNull(admin, "ComponentName is null"); 10546 enforceProfileOrDeviceOwner(admin); 10547 10548 return mOwners.getSystemUpdateInfo(); 10549 } 10550 10551 @Override 10552 public void setPermissionPolicy(ComponentName admin, String callerPackage, int policy) 10553 throws RemoteException { 10554 int userId = UserHandle.getCallingUserId(); 10555 synchronized (this) { 10556 // Ensure the caller is a DO/PO or a permission grant state delegate. 10557 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 10558 DELEGATION_PERMISSION_GRANT); 10559 DevicePolicyData userPolicy = getUserData(userId); 10560 if (userPolicy.mPermissionPolicy != policy) { 10561 userPolicy.mPermissionPolicy = policy; 10562 saveSettingsLocked(userId); 10563 } 10564 } 10565 } 10566 10567 @Override 10568 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 10569 int userId = UserHandle.getCallingUserId(); 10570 synchronized (this) { 10571 DevicePolicyData userPolicy = getUserData(userId); 10572 return userPolicy.mPermissionPolicy; 10573 } 10574 } 10575 10576 @Override 10577 public boolean setPermissionGrantState(ComponentName admin, String callerPackage, 10578 String packageName, String permission, int grantState) throws RemoteException { 10579 UserHandle user = mInjector.binderGetCallingUserHandle(); 10580 synchronized (this) { 10581 // Ensure the caller is a DO/PO or a permission grant state delegate. 10582 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 10583 DELEGATION_PERMISSION_GRANT); 10584 long ident = mInjector.binderClearCallingIdentity(); 10585 try { 10586 if (getTargetSdk(packageName, user.getIdentifier()) 10587 < android.os.Build.VERSION_CODES.M) { 10588 return false; 10589 } 10590 if (!isRuntimePermission(permission)) { 10591 return false; 10592 } 10593 final PackageManager packageManager = mInjector.getPackageManager(); 10594 switch (grantState) { 10595 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 10596 mInjector.getPackageManagerInternal().grantRuntimePermission(packageName, 10597 permission, user.getIdentifier(), true /* override policy */); 10598 packageManager.updatePermissionFlags(permission, packageName, 10599 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 10600 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 10601 } break; 10602 10603 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 10604 mInjector.getPackageManagerInternal().revokeRuntimePermission(packageName, 10605 permission, user.getIdentifier(), true /* override policy */); 10606 packageManager.updatePermissionFlags(permission, packageName, 10607 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 10608 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 10609 } break; 10610 10611 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 10612 packageManager.updatePermissionFlags(permission, packageName, 10613 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 10614 } break; 10615 } 10616 return true; 10617 } catch (SecurityException se) { 10618 return false; 10619 } catch (NameNotFoundException e) { 10620 return false; 10621 } finally { 10622 mInjector.binderRestoreCallingIdentity(ident); 10623 } 10624 } 10625 } 10626 10627 @Override 10628 public int getPermissionGrantState(ComponentName admin, String callerPackage, 10629 String packageName, String permission) throws RemoteException { 10630 PackageManager packageManager = mInjector.getPackageManager(); 10631 10632 UserHandle user = mInjector.binderGetCallingUserHandle(); 10633 if (!isCallerWithSystemUid()) { 10634 // Ensure the caller is a DO/PO or a permission grant state delegate. 10635 enforceCanManageScope(admin, callerPackage, 10636 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, DELEGATION_PERMISSION_GRANT); 10637 } 10638 synchronized (this) { 10639 long ident = mInjector.binderClearCallingIdentity(); 10640 try { 10641 int granted = mIPackageManager.checkPermission(permission, 10642 packageName, user.getIdentifier()); 10643 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 10644 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 10645 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 10646 // Not controlled by policy 10647 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 10648 } else { 10649 // Policy controlled so return result based on permission grant state 10650 return granted == PackageManager.PERMISSION_GRANTED 10651 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 10652 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 10653 } 10654 } finally { 10655 mInjector.binderRestoreCallingIdentity(ident); 10656 } 10657 } 10658 } 10659 10660 boolean isPackageInstalledForUser(String packageName, int userHandle) { 10661 try { 10662 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 10663 userHandle); 10664 return (pi != null) && (pi.applicationInfo.flags != 0); 10665 } catch (RemoteException re) { 10666 throw new RuntimeException("Package manager has died", re); 10667 } 10668 } 10669 10670 public boolean isRuntimePermission(String permissionName) throws NameNotFoundException { 10671 final PackageManager packageManager = mInjector.getPackageManager(); 10672 PermissionInfo permissionInfo = packageManager.getPermissionInfo(permissionName, 0); 10673 return (permissionInfo.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE) 10674 == PermissionInfo.PROTECTION_DANGEROUS; 10675 } 10676 10677 @Override 10678 public boolean isProvisioningAllowed(String action, String packageName) { 10679 Preconditions.checkNotNull(packageName); 10680 10681 final int callingUid = mInjector.binderGetCallingUid(); 10682 final long ident = mInjector.binderClearCallingIdentity(); 10683 try { 10684 final int uidForPackage = mInjector.getPackageManager().getPackageUidAsUser( 10685 packageName, UserHandle.getUserId(callingUid)); 10686 Preconditions.checkArgument(callingUid == uidForPackage, 10687 "Caller uid doesn't match the one for the provided package."); 10688 } catch (NameNotFoundException e) { 10689 throw new IllegalArgumentException("Invalid package provided " + packageName, e); 10690 } finally { 10691 mInjector.binderRestoreCallingIdentity(ident); 10692 } 10693 10694 return checkProvisioningPreConditionSkipPermission(action, packageName) == CODE_OK; 10695 } 10696 10697 @Override 10698 public int checkProvisioningPreCondition(String action, String packageName) { 10699 Preconditions.checkNotNull(packageName); 10700 enforceCanManageProfileAndDeviceOwners(); 10701 return checkProvisioningPreConditionSkipPermission(action, packageName); 10702 } 10703 10704 private int checkProvisioningPreConditionSkipPermission(String action, String packageName) { 10705 if (!mHasFeature) { 10706 return CODE_DEVICE_ADMIN_NOT_SUPPORTED; 10707 } 10708 10709 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10710 if (action != null) { 10711 switch (action) { 10712 case DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE: 10713 return checkManagedProfileProvisioningPreCondition(packageName, callingUserId); 10714 case DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE: 10715 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 10716 case DevicePolicyManager.ACTION_PROVISION_MANAGED_USER: 10717 return checkManagedUserProvisioningPreCondition(callingUserId); 10718 case DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE: 10719 return checkManagedShareableDeviceProvisioningPreCondition(callingUserId); 10720 } 10721 } 10722 throw new IllegalArgumentException("Unknown provisioning action " + action); 10723 } 10724 10725 /** 10726 * The device owner can only be set before the setup phase of the primary user has completed, 10727 * except for adb command if no accounts or additional users are present on the device. 10728 */ 10729 private int checkDeviceOwnerProvisioningPreConditionLocked(@Nullable ComponentName owner, 10730 int deviceOwnerUserId, boolean isAdb, boolean hasIncompatibleAccountsOrNonAdb) { 10731 if (mOwners.hasDeviceOwner()) { 10732 return CODE_HAS_DEVICE_OWNER; 10733 } 10734 if (mOwners.hasProfileOwner(deviceOwnerUserId)) { 10735 return CODE_USER_HAS_PROFILE_OWNER; 10736 } 10737 if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) { 10738 return CODE_USER_NOT_RUNNING; 10739 } 10740 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 10741 return CODE_HAS_PAIRED; 10742 } 10743 if (isAdb) { 10744 // if shell command runs after user setup completed check device status. Otherwise, OK. 10745 if (mIsWatch || hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 10746 if (!mInjector.userManagerIsSplitSystemUser()) { 10747 if (mUserManager.getUserCount() > 1) { 10748 return CODE_NONSYSTEM_USER_EXISTS; 10749 } 10750 if (hasIncompatibleAccountsOrNonAdb) { 10751 return CODE_ACCOUNTS_NOT_EMPTY; 10752 } 10753 } else { 10754 // STOPSHIP Do proper check in split user mode 10755 } 10756 } 10757 return CODE_OK; 10758 } else { 10759 if (!mInjector.userManagerIsSplitSystemUser()) { 10760 // In non-split user mode, DO has to be user 0 10761 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) { 10762 return CODE_NOT_SYSTEM_USER; 10763 } 10764 // In non-split user mode, only provision DO before setup wizard completes 10765 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 10766 return CODE_USER_SETUP_COMPLETED; 10767 } 10768 } else { 10769 // STOPSHIP Do proper check in split user mode 10770 } 10771 return CODE_OK; 10772 } 10773 } 10774 10775 private int checkDeviceOwnerProvisioningPreCondition(int deviceOwnerUserId) { 10776 synchronized (this) { 10777 // hasIncompatibleAccountsOrNonAdb doesn't matter since the caller is not adb. 10778 return checkDeviceOwnerProvisioningPreConditionLocked(/* owner unknown */ null, 10779 deviceOwnerUserId, /* isAdb= */ false, 10780 /* hasIncompatibleAccountsOrNonAdb=*/ true); 10781 } 10782 } 10783 10784 private int checkManagedProfileProvisioningPreCondition(String packageName, int callingUserId) { 10785 if (!hasFeatureManagedUsers()) { 10786 return CODE_MANAGED_USERS_NOT_SUPPORTED; 10787 } 10788 if (callingUserId == UserHandle.USER_SYSTEM 10789 && mInjector.userManagerIsSplitSystemUser()) { 10790 // Managed-profiles cannot be setup on the system user. 10791 return CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 10792 } 10793 if (getProfileOwner(callingUserId) != null) { 10794 // Managed user cannot have a managed profile. 10795 return CODE_USER_HAS_PROFILE_OWNER; 10796 } 10797 10798 final long ident = mInjector.binderClearCallingIdentity(); 10799 try { 10800 final UserHandle callingUserHandle = UserHandle.of(callingUserId); 10801 final ComponentName ownerAdmin = getOwnerComponent(packageName, callingUserId); 10802 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_MANAGED_PROFILE, 10803 callingUserHandle)) { 10804 // An admin can initiate provisioning if it has set the restriction. 10805 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 10806 UserManager.DISALLOW_ADD_MANAGED_PROFILE, callingUserId)) { 10807 return CODE_ADD_MANAGED_PROFILE_DISALLOWED; 10808 } 10809 } 10810 boolean canRemoveProfile = true; 10811 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 10812 callingUserHandle)) { 10813 // We can remove a profile if the admin itself has set the restriction. 10814 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 10815 UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 10816 callingUserId)) { 10817 canRemoveProfile = false; 10818 } 10819 } 10820 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, canRemoveProfile)) { 10821 return CODE_CANNOT_ADD_MANAGED_PROFILE; 10822 } 10823 } finally { 10824 mInjector.binderRestoreCallingIdentity(ident); 10825 } 10826 return CODE_OK; 10827 } 10828 10829 private ComponentName getOwnerComponent(String packageName, int userId) { 10830 if (isDeviceOwnerPackage(packageName, userId)) { 10831 return mOwners.getDeviceOwnerComponent(); 10832 } 10833 if (isProfileOwnerPackage(packageName, userId)) { 10834 return mOwners.getProfileOwnerComponent(userId); 10835 } 10836 return null; 10837 } 10838 10839 /** 10840 * Return device owner or profile owner set on a given user. 10841 */ 10842 private @Nullable ComponentName getOwnerComponent(int userId) { 10843 synchronized (this) { 10844 if (mOwners.getDeviceOwnerUserId() == userId) { 10845 return mOwners.getDeviceOwnerComponent(); 10846 } 10847 if (mOwners.hasProfileOwner(userId)) { 10848 return mOwners.getProfileOwnerComponent(userId); 10849 } 10850 } 10851 return null; 10852 } 10853 10854 private int checkManagedUserProvisioningPreCondition(int callingUserId) { 10855 if (!hasFeatureManagedUsers()) { 10856 return CODE_MANAGED_USERS_NOT_SUPPORTED; 10857 } 10858 if (!mInjector.userManagerIsSplitSystemUser()) { 10859 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 10860 return CODE_NOT_SYSTEM_USER_SPLIT; 10861 } 10862 if (callingUserId == UserHandle.USER_SYSTEM) { 10863 // System user cannot be a managed user. 10864 return CODE_SYSTEM_USER; 10865 } 10866 if (hasUserSetupCompleted(callingUserId)) { 10867 return CODE_USER_SETUP_COMPLETED; 10868 } 10869 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 10870 return CODE_HAS_PAIRED; 10871 } 10872 return CODE_OK; 10873 } 10874 10875 private int checkManagedShareableDeviceProvisioningPreCondition(int callingUserId) { 10876 if (!mInjector.userManagerIsSplitSystemUser()) { 10877 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 10878 return CODE_NOT_SYSTEM_USER_SPLIT; 10879 } 10880 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 10881 } 10882 10883 private boolean hasFeatureManagedUsers() { 10884 try { 10885 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 10886 } catch (RemoteException e) { 10887 return false; 10888 } 10889 } 10890 10891 @Override 10892 public String getWifiMacAddress(ComponentName admin) { 10893 // Make sure caller has DO. 10894 synchronized (this) { 10895 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10896 } 10897 10898 final long ident = mInjector.binderClearCallingIdentity(); 10899 try { 10900 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 10901 if (wifiInfo == null) { 10902 return null; 10903 } 10904 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 10905 } finally { 10906 mInjector.binderRestoreCallingIdentity(ident); 10907 } 10908 } 10909 10910 /** 10911 * Returns the target sdk version number that the given packageName was built for 10912 * in the given user. 10913 */ 10914 private int getTargetSdk(String packageName, int userId) { 10915 final ApplicationInfo ai; 10916 try { 10917 ai = mIPackageManager.getApplicationInfo(packageName, 0, userId); 10918 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 10919 return targetSdkVersion; 10920 } catch (RemoteException e) { 10921 // Shouldn't happen 10922 return 0; 10923 } 10924 } 10925 10926 @Override 10927 public boolean isManagedProfile(ComponentName admin) { 10928 enforceProfileOrDeviceOwner(admin); 10929 return isManagedProfile(mInjector.userHandleGetCallingUserId()); 10930 } 10931 10932 @Override 10933 public boolean isSystemOnlyUser(ComponentName admin) { 10934 synchronized (this) { 10935 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10936 } 10937 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10938 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 10939 } 10940 10941 @Override 10942 public void reboot(ComponentName admin) { 10943 Preconditions.checkNotNull(admin); 10944 // Make sure caller has DO. 10945 synchronized (this) { 10946 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10947 } 10948 long ident = mInjector.binderClearCallingIdentity(); 10949 try { 10950 // Make sure there are no ongoing calls on the device. 10951 if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { 10952 throw new IllegalStateException("Cannot be called with ongoing call on the device"); 10953 } 10954 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 10955 } finally { 10956 mInjector.binderRestoreCallingIdentity(ident); 10957 } 10958 } 10959 10960 @Override 10961 public void setShortSupportMessage(@NonNull ComponentName who, CharSequence message) { 10962 if (!mHasFeature) { 10963 return; 10964 } 10965 Preconditions.checkNotNull(who, "ComponentName is null"); 10966 final int userHandle = mInjector.userHandleGetCallingUserId(); 10967 synchronized (this) { 10968 ActiveAdmin admin = getActiveAdminForUidLocked(who, 10969 mInjector.binderGetCallingUid()); 10970 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 10971 admin.shortSupportMessage = message; 10972 saveSettingsLocked(userHandle); 10973 } 10974 } 10975 } 10976 10977 @Override 10978 public CharSequence getShortSupportMessage(@NonNull ComponentName who) { 10979 if (!mHasFeature) { 10980 return null; 10981 } 10982 Preconditions.checkNotNull(who, "ComponentName is null"); 10983 synchronized (this) { 10984 ActiveAdmin admin = getActiveAdminForUidLocked(who, 10985 mInjector.binderGetCallingUid()); 10986 return admin.shortSupportMessage; 10987 } 10988 } 10989 10990 @Override 10991 public void setLongSupportMessage(@NonNull ComponentName who, CharSequence message) { 10992 if (!mHasFeature) { 10993 return; 10994 } 10995 Preconditions.checkNotNull(who, "ComponentName is null"); 10996 final int userHandle = mInjector.userHandleGetCallingUserId(); 10997 synchronized (this) { 10998 ActiveAdmin admin = getActiveAdminForUidLocked(who, 10999 mInjector.binderGetCallingUid()); 11000 if (!TextUtils.equals(admin.longSupportMessage, message)) { 11001 admin.longSupportMessage = message; 11002 saveSettingsLocked(userHandle); 11003 } 11004 } 11005 } 11006 11007 @Override 11008 public CharSequence getLongSupportMessage(@NonNull ComponentName who) { 11009 if (!mHasFeature) { 11010 return null; 11011 } 11012 Preconditions.checkNotNull(who, "ComponentName is null"); 11013 synchronized (this) { 11014 ActiveAdmin admin = getActiveAdminForUidLocked(who, 11015 mInjector.binderGetCallingUid()); 11016 return admin.longSupportMessage; 11017 } 11018 } 11019 11020 @Override 11021 public CharSequence getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 11022 if (!mHasFeature) { 11023 return null; 11024 } 11025 Preconditions.checkNotNull(who, "ComponentName is null"); 11026 if (!isCallerWithSystemUid()) { 11027 throw new SecurityException("Only the system can query support message for user"); 11028 } 11029 synchronized (this) { 11030 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 11031 if (admin != null) { 11032 return admin.shortSupportMessage; 11033 } 11034 } 11035 return null; 11036 } 11037 11038 @Override 11039 public CharSequence getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 11040 if (!mHasFeature) { 11041 return null; 11042 } 11043 Preconditions.checkNotNull(who, "ComponentName is null"); 11044 if (!isCallerWithSystemUid()) { 11045 throw new SecurityException("Only the system can query support message for user"); 11046 } 11047 synchronized (this) { 11048 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 11049 if (admin != null) { 11050 return admin.longSupportMessage; 11051 } 11052 } 11053 return null; 11054 } 11055 11056 @Override 11057 public void setOrganizationColor(@NonNull ComponentName who, int color) { 11058 if (!mHasFeature) { 11059 return; 11060 } 11061 Preconditions.checkNotNull(who, "ComponentName is null"); 11062 final int userHandle = mInjector.userHandleGetCallingUserId(); 11063 enforceManagedProfile(userHandle, "set organization color"); 11064 synchronized (this) { 11065 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11066 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11067 admin.organizationColor = color; 11068 saveSettingsLocked(userHandle); 11069 } 11070 } 11071 11072 @Override 11073 public void setOrganizationColorForUser(int color, int userId) { 11074 if (!mHasFeature) { 11075 return; 11076 } 11077 enforceFullCrossUsersPermission(userId); 11078 enforceManageUsers(); 11079 enforceManagedProfile(userId, "set organization color"); 11080 synchronized (this) { 11081 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 11082 admin.organizationColor = color; 11083 saveSettingsLocked(userId); 11084 } 11085 } 11086 11087 @Override 11088 public int getOrganizationColor(@NonNull ComponentName who) { 11089 if (!mHasFeature) { 11090 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 11091 } 11092 Preconditions.checkNotNull(who, "ComponentName is null"); 11093 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 11094 synchronized (this) { 11095 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11096 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11097 return admin.organizationColor; 11098 } 11099 } 11100 11101 @Override 11102 public int getOrganizationColorForUser(int userHandle) { 11103 if (!mHasFeature) { 11104 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 11105 } 11106 enforceFullCrossUsersPermission(userHandle); 11107 enforceManagedProfile(userHandle, "get organization color"); 11108 synchronized (this) { 11109 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 11110 return (profileOwner != null) 11111 ? profileOwner.organizationColor 11112 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 11113 } 11114 } 11115 11116 @Override 11117 public void setOrganizationName(@NonNull ComponentName who, CharSequence text) { 11118 if (!mHasFeature) { 11119 return; 11120 } 11121 Preconditions.checkNotNull(who, "ComponentName is null"); 11122 final int userHandle = mInjector.userHandleGetCallingUserId(); 11123 11124 synchronized (this) { 11125 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11126 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11127 if (!TextUtils.equals(admin.organizationName, text)) { 11128 admin.organizationName = (text == null || text.length() == 0) 11129 ? null : text.toString(); 11130 saveSettingsLocked(userHandle); 11131 } 11132 } 11133 } 11134 11135 @Override 11136 public CharSequence getOrganizationName(@NonNull ComponentName who) { 11137 if (!mHasFeature) { 11138 return null; 11139 } 11140 Preconditions.checkNotNull(who, "ComponentName is null"); 11141 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 11142 synchronized(this) { 11143 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11144 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11145 return admin.organizationName; 11146 } 11147 } 11148 11149 @Override 11150 public CharSequence getDeviceOwnerOrganizationName() { 11151 if (!mHasFeature) { 11152 return null; 11153 } 11154 enforceDeviceOwnerOrManageUsers(); 11155 synchronized(this) { 11156 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 11157 return deviceOwnerAdmin == null ? null : deviceOwnerAdmin.organizationName; 11158 } 11159 } 11160 11161 @Override 11162 public CharSequence getOrganizationNameForUser(int userHandle) { 11163 if (!mHasFeature) { 11164 return null; 11165 } 11166 enforceFullCrossUsersPermission(userHandle); 11167 enforceManagedProfile(userHandle, "get organization name"); 11168 synchronized (this) { 11169 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 11170 return (profileOwner != null) 11171 ? profileOwner.organizationName 11172 : null; 11173 } 11174 } 11175 11176 @Override 11177 public List<String> setMeteredDataDisabled(ComponentName who, List<String> packageNames) { 11178 Preconditions.checkNotNull(who); 11179 Preconditions.checkNotNull(packageNames); 11180 11181 if (!mHasFeature) { 11182 return packageNames; 11183 } 11184 synchronized (this) { 11185 final ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11186 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11187 final int callingUserId = mInjector.userHandleGetCallingUserId(); 11188 final long identity = mInjector.binderClearCallingIdentity(); 11189 try { 11190 final List<String> excludedPkgs 11191 = removeInvalidPkgsForMeteredDataRestriction(callingUserId, packageNames); 11192 admin.meteredDisabledPackages = packageNames; 11193 pushMeteredDisabledPackagesLocked(callingUserId); 11194 saveSettingsLocked(callingUserId); 11195 return excludedPkgs; 11196 } finally { 11197 mInjector.binderRestoreCallingIdentity(identity); 11198 } 11199 } 11200 } 11201 11202 private List<String> removeInvalidPkgsForMeteredDataRestriction( 11203 int userId, List<String> pkgNames) { 11204 final Set<String> activeAdmins = getActiveAdminPackagesLocked(userId); 11205 final List<String> excludedPkgs = new ArrayList<>(); 11206 for (int i = pkgNames.size() - 1; i >= 0; --i) { 11207 final String pkgName = pkgNames.get(i); 11208 // If the package is an active admin, don't restrict it. 11209 if (activeAdmins.contains(pkgName)) { 11210 excludedPkgs.add(pkgName); 11211 continue; 11212 } 11213 // If the package doesn't exist, don't restrict it. 11214 try { 11215 if (!mInjector.getIPackageManager().isPackageAvailable(pkgName, userId)) { 11216 excludedPkgs.add(pkgName); 11217 } 11218 } catch (RemoteException e) { 11219 // Should not happen 11220 } 11221 } 11222 pkgNames.removeAll(excludedPkgs); 11223 return excludedPkgs; 11224 } 11225 11226 @Override 11227 public List<String> getMeteredDataDisabled(ComponentName who) { 11228 Preconditions.checkNotNull(who); 11229 11230 if (!mHasFeature) { 11231 return new ArrayList<>(); 11232 } 11233 synchronized (this) { 11234 final ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11235 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11236 return admin.meteredDisabledPackages == null 11237 ? new ArrayList<>() : admin.meteredDisabledPackages; 11238 } 11239 } 11240 11241 private void pushMeteredDisabledPackagesLocked(int userId) { 11242 mInjector.getNetworkPolicyManagerInternal().setMeteredRestrictedPackages( 11243 getMeteredDisabledPackagesLocked(userId), userId); 11244 } 11245 11246 private Set<String> getMeteredDisabledPackagesLocked(int userId) { 11247 final DevicePolicyData policy = getUserData(userId); 11248 final Set<String> restrictedPkgs = new ArraySet<>(); 11249 for (int i = policy.mAdminList.size() - 1; i >= 0; --i) { 11250 final ActiveAdmin admin = policy.mAdminList.get(i); 11251 if (!isActiveAdminWithPolicyForUserLocked(admin, 11252 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, userId)) { 11253 // Not a profile or device owner, ignore 11254 continue; 11255 } 11256 if (admin.meteredDisabledPackages != null) { 11257 restrictedPkgs.addAll(admin.meteredDisabledPackages); 11258 } 11259 } 11260 return restrictedPkgs; 11261 } 11262 11263 @Override 11264 public void setAffiliationIds(ComponentName admin, List<String> ids) { 11265 if (!mHasFeature) { 11266 return; 11267 } 11268 if (ids == null) { 11269 throw new IllegalArgumentException("ids must not be null"); 11270 } 11271 for (String id : ids) { 11272 if (TextUtils.isEmpty(id)) { 11273 throw new IllegalArgumentException("ids must not contain empty string"); 11274 } 11275 } 11276 11277 final Set<String> affiliationIds = new ArraySet<>(ids); 11278 final int callingUserId = mInjector.userHandleGetCallingUserId(); 11279 synchronized (this) { 11280 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11281 getUserData(callingUserId).mAffiliationIds = affiliationIds; 11282 saveSettingsLocked(callingUserId); 11283 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 11284 // Affiliation ids specified by the device owner are additionally stored in 11285 // UserHandle.USER_SYSTEM's DevicePolicyData. 11286 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 11287 saveSettingsLocked(UserHandle.USER_SYSTEM); 11288 } 11289 11290 // Affiliation status for any user, not just the calling user, might have changed. 11291 // The device owner user will still be affiliated after changing its affiliation ids, 11292 // but as a result of that other users might become affiliated or un-affiliated. 11293 maybePauseDeviceWideLoggingLocked(); 11294 maybeResumeDeviceWideLoggingLocked(); 11295 maybeClearLockTaskPolicyLocked(); 11296 } 11297 } 11298 11299 @Override 11300 public List<String> getAffiliationIds(ComponentName admin) { 11301 if (!mHasFeature) { 11302 return Collections.emptyList(); 11303 } 11304 11305 Preconditions.checkNotNull(admin); 11306 synchronized (this) { 11307 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11308 return new ArrayList<String>( 11309 getUserData(mInjector.userHandleGetCallingUserId()).mAffiliationIds); 11310 } 11311 } 11312 11313 @Override 11314 public boolean isAffiliatedUser() { 11315 if (!mHasFeature) { 11316 return false; 11317 } 11318 11319 synchronized (this) { 11320 return isUserAffiliatedWithDeviceLocked(mInjector.userHandleGetCallingUserId()); 11321 } 11322 } 11323 11324 private boolean isUserAffiliatedWithDeviceLocked(int userId) { 11325 if (!mOwners.hasDeviceOwner()) { 11326 return false; 11327 } 11328 if (userId == mOwners.getDeviceOwnerUserId()) { 11329 // The user that the DO is installed on is always affiliated with the device. 11330 return true; 11331 } 11332 if (userId == UserHandle.USER_SYSTEM) { 11333 // The system user is always affiliated in a DO device, even if the DO is set on a 11334 // different user. This could be the case if the DO is set in the primary user 11335 // of a split user device. 11336 return true; 11337 } 11338 11339 final ComponentName profileOwner = getProfileOwner(userId); 11340 if (profileOwner == null) { 11341 return false; 11342 } 11343 11344 final Set<String> userAffiliationIds = getUserData(userId).mAffiliationIds; 11345 final Set<String> deviceAffiliationIds = 11346 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 11347 for (String id : userAffiliationIds) { 11348 if (deviceAffiliationIds.contains(id)) { 11349 return true; 11350 } 11351 } 11352 return false; 11353 } 11354 11355 private boolean areAllUsersAffiliatedWithDeviceLocked() { 11356 final long ident = mInjector.binderClearCallingIdentity(); 11357 try { 11358 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 11359 for (int i = 0; i < userInfos.size(); i++) { 11360 int userId = userInfos.get(i).id; 11361 if (!isUserAffiliatedWithDeviceLocked(userId)) { 11362 Slog.d(LOG_TAG, "User id " + userId + " not affiliated."); 11363 return false; 11364 } 11365 } 11366 } finally { 11367 mInjector.binderRestoreCallingIdentity(ident); 11368 } 11369 11370 return true; 11371 } 11372 11373 @Override 11374 public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) { 11375 if (!mHasFeature) { 11376 return; 11377 } 11378 Preconditions.checkNotNull(admin); 11379 11380 synchronized (this) { 11381 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11382 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 11383 return; 11384 } 11385 mInjector.securityLogSetLoggingEnabledProperty(enabled); 11386 if (enabled) { 11387 mSecurityLogMonitor.start(); 11388 maybePauseDeviceWideLoggingLocked(); 11389 } else { 11390 mSecurityLogMonitor.stop(); 11391 } 11392 } 11393 } 11394 11395 @Override 11396 public boolean isSecurityLoggingEnabled(ComponentName admin) { 11397 if (!mHasFeature) { 11398 return false; 11399 } 11400 11401 synchronized (this) { 11402 if (!isCallerWithSystemUid()) { 11403 Preconditions.checkNotNull(admin); 11404 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11405 } 11406 return mInjector.securityLogGetLoggingEnabledProperty(); 11407 } 11408 } 11409 11410 private synchronized void recordSecurityLogRetrievalTime() { 11411 final long currentTime = System.currentTimeMillis(); 11412 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 11413 if (currentTime > policyData.mLastSecurityLogRetrievalTime) { 11414 policyData.mLastSecurityLogRetrievalTime = currentTime; 11415 saveSettingsLocked(UserHandle.USER_SYSTEM); 11416 } 11417 } 11418 11419 @Override 11420 public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) { 11421 if (!mHasFeature) { 11422 return null; 11423 } 11424 11425 Preconditions.checkNotNull(admin); 11426 ensureDeviceOwnerAndAllUsersAffiliated(admin); 11427 11428 if (!mContext.getResources().getBoolean(R.bool.config_supportPreRebootSecurityLogs) 11429 || !mInjector.securityLogGetLoggingEnabledProperty()) { 11430 return null; 11431 } 11432 11433 recordSecurityLogRetrievalTime(); 11434 11435 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 11436 try { 11437 SecurityLog.readPreviousEvents(output); 11438 return new ParceledListSlice<SecurityEvent>(output); 11439 } catch (IOException e) { 11440 Slog.w(LOG_TAG, "Fail to read previous events" , e); 11441 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 11442 } 11443 } 11444 11445 @Override 11446 public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) { 11447 if (!mHasFeature) { 11448 return null; 11449 } 11450 11451 Preconditions.checkNotNull(admin); 11452 ensureDeviceOwnerAndAllUsersAffiliated(admin); 11453 11454 if (!mInjector.securityLogGetLoggingEnabledProperty()) { 11455 return null; 11456 } 11457 11458 recordSecurityLogRetrievalTime(); 11459 11460 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 11461 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 11462 } 11463 11464 private void enforceCanManageDeviceAdmin() { 11465 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 11466 null); 11467 } 11468 11469 private void enforceCanManageProfileAndDeviceOwners() { 11470 mContext.enforceCallingOrSelfPermission( 11471 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 11472 } 11473 11474 private void enforceCallerSystemUserHandle() { 11475 final int callingUid = mInjector.binderGetCallingUid(); 11476 final int userId = UserHandle.getUserId(callingUid); 11477 if (userId != UserHandle.USER_SYSTEM) { 11478 throw new SecurityException("Caller has to be in user 0"); 11479 } 11480 } 11481 11482 @Override 11483 public boolean isUninstallInQueue(final String packageName) { 11484 enforceCanManageDeviceAdmin(); 11485 final int userId = mInjector.userHandleGetCallingUserId(); 11486 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 11487 synchronized (this) { 11488 return mPackagesToRemove.contains(packageUserPair); 11489 } 11490 } 11491 11492 @Override 11493 public void uninstallPackageWithActiveAdmins(final String packageName) { 11494 enforceCanManageDeviceAdmin(); 11495 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 11496 11497 final int userId = mInjector.userHandleGetCallingUserId(); 11498 11499 enforceUserUnlocked(userId); 11500 11501 final ComponentName profileOwner = getProfileOwner(userId); 11502 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 11503 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 11504 } 11505 11506 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 11507 if (getDeviceOwnerUserId() == userId && deviceOwner != null 11508 && packageName.equals(deviceOwner.getPackageName())) { 11509 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 11510 } 11511 11512 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 11513 synchronized (this) { 11514 mPackagesToRemove.add(packageUserPair); 11515 } 11516 11517 // All active admins on the user. 11518 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 11519 11520 // Active admins in the target package. 11521 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 11522 if (allActiveAdmins != null) { 11523 for (ComponentName activeAdmin : allActiveAdmins) { 11524 if (packageName.equals(activeAdmin.getPackageName())) { 11525 packageActiveAdmins.add(activeAdmin); 11526 removeActiveAdmin(activeAdmin, userId); 11527 } 11528 } 11529 } 11530 if (packageActiveAdmins.size() == 0) { 11531 startUninstallIntent(packageName, userId); 11532 } else { 11533 mHandler.postDelayed(new Runnable() { 11534 @Override 11535 public void run() { 11536 for (ComponentName activeAdmin : packageActiveAdmins) { 11537 removeAdminArtifacts(activeAdmin, userId); 11538 } 11539 startUninstallIntent(packageName, userId); 11540 } 11541 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 11542 } 11543 } 11544 11545 @Override 11546 public boolean isDeviceProvisioned() { 11547 synchronized (this) { 11548 return getUserDataUnchecked(UserHandle.USER_SYSTEM).mUserSetupComplete; 11549 } 11550 } 11551 11552 private boolean isCurrentUserDemo() { 11553 if (UserManager.isDeviceInDemoMode(mContext)) { 11554 final int userId = mInjector.userHandleGetCallingUserId(); 11555 final long callingIdentity = mInjector.binderClearCallingIdentity(); 11556 try { 11557 return mUserManager.getUserInfo(userId).isDemo(); 11558 } finally { 11559 mInjector.binderRestoreCallingIdentity(callingIdentity); 11560 } 11561 } 11562 return false; 11563 } 11564 11565 private void removePackageIfRequired(final String packageName, final int userId) { 11566 if (!packageHasActiveAdmins(packageName, userId)) { 11567 // Will not do anything if uninstall was not requested or was already started. 11568 startUninstallIntent(packageName, userId); 11569 } 11570 } 11571 11572 private void startUninstallIntent(final String packageName, final int userId) { 11573 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 11574 synchronized (this) { 11575 if (!mPackagesToRemove.contains(packageUserPair)) { 11576 // Do nothing if uninstall was not requested or was already started. 11577 return; 11578 } 11579 mPackagesToRemove.remove(packageUserPair); 11580 } 11581 try { 11582 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 11583 // Package does not exist. Nothing to do. 11584 return; 11585 } 11586 } catch (RemoteException re) { 11587 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 11588 } 11589 11590 try { // force stop the package before uninstalling 11591 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 11592 } catch (RemoteException re) { 11593 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 11594 } 11595 final Uri packageURI = Uri.parse("package:" + packageName); 11596 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 11597 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 11598 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 11599 } 11600 11601 /** 11602 * Removes the admin from the policy. Ideally called after the admin's 11603 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 11604 * 11605 * @param adminReceiver The admin to remove 11606 * @param userHandle The user for which this admin has to be removed. 11607 */ 11608 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 11609 synchronized (this) { 11610 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 11611 if (admin == null) { 11612 return; 11613 } 11614 final DevicePolicyData policy = getUserData(userHandle); 11615 final boolean doProxyCleanup = admin.info.usesPolicy( 11616 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 11617 policy.mAdminList.remove(admin); 11618 policy.mAdminMap.remove(adminReceiver); 11619 validatePasswordOwnerLocked(policy); 11620 if (doProxyCleanup) { 11621 resetGlobalProxyLocked(policy); 11622 } 11623 pushActiveAdminPackagesLocked(userHandle); 11624 pushMeteredDisabledPackagesLocked(userHandle); 11625 saveSettingsLocked(userHandle); 11626 updateMaximumTimeToLockLocked(userHandle); 11627 policy.mRemovingAdmins.remove(adminReceiver); 11628 11629 Slog.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle); 11630 } 11631 // The removed admin might have disabled camera, so update user 11632 // restrictions. 11633 pushUserRestrictions(userHandle); 11634 } 11635 11636 @Override 11637 public void setDeviceProvisioningConfigApplied() { 11638 enforceManageUsers(); 11639 synchronized (this) { 11640 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 11641 policy.mDeviceProvisioningConfigApplied = true; 11642 saveSettingsLocked(UserHandle.USER_SYSTEM); 11643 } 11644 } 11645 11646 @Override 11647 public boolean isDeviceProvisioningConfigApplied() { 11648 enforceManageUsers(); 11649 synchronized (this) { 11650 final DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 11651 return policy.mDeviceProvisioningConfigApplied; 11652 } 11653 } 11654 11655 /** 11656 * Force update internal persistent state from Settings.Secure.USER_SETUP_COMPLETE. 11657 * 11658 * It's added for testing only. Please use this API carefully if it's used by other system app 11659 * and bare in mind Settings.Secure.USER_SETUP_COMPLETE can be modified by user and other system 11660 * apps. 11661 */ 11662 @Override 11663 public void forceUpdateUserSetupComplete() { 11664 enforceCanManageProfileAndDeviceOwners(); 11665 enforceCallerSystemUserHandle(); 11666 // no effect if it's called from user build 11667 if (!mInjector.isBuildDebuggable()) { 11668 return; 11669 } 11670 final int userId = UserHandle.USER_SYSTEM; 11671 boolean isUserCompleted = mInjector.settingsSecureGetIntForUser( 11672 Settings.Secure.USER_SETUP_COMPLETE, 0, userId) != 0; 11673 DevicePolicyData policy = getUserData(userId); 11674 policy.mUserSetupComplete = isUserCompleted; 11675 synchronized (this) { 11676 saveSettingsLocked(userId); 11677 } 11678 } 11679 11680 // TODO(b/22388012): When backup is available for secondary users and profiles, consider 11681 // whether there are any privacy/security implications of enabling the backup service here 11682 // if there are other users or profiles unmanaged or managed by a different entity (i.e. not 11683 // affiliated). 11684 @Override 11685 public void setBackupServiceEnabled(ComponentName admin, boolean enabled) { 11686 if (!mHasFeature) { 11687 return; 11688 } 11689 Preconditions.checkNotNull(admin); 11690 synchronized (this) { 11691 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked( 11692 admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11693 if (!enabled) { 11694 activeAdmin.mandatoryBackupTransport = null; 11695 saveSettingsLocked(UserHandle.USER_SYSTEM); 11696 } 11697 } 11698 11699 final long ident = mInjector.binderClearCallingIdentity(); 11700 try { 11701 IBackupManager ibm = mInjector.getIBackupManager(); 11702 if (ibm != null) { 11703 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, enabled); 11704 } 11705 } catch (RemoteException e) { 11706 throw new IllegalStateException( 11707 "Failed " + (enabled ? "" : "de") + "activating backup service.", e); 11708 } finally { 11709 mInjector.binderRestoreCallingIdentity(ident); 11710 } 11711 } 11712 11713 @Override 11714 public boolean isBackupServiceEnabled(ComponentName admin) { 11715 Preconditions.checkNotNull(admin); 11716 if (!mHasFeature) { 11717 return true; 11718 } 11719 synchronized (this) { 11720 try { 11721 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11722 IBackupManager ibm = mInjector.getIBackupManager(); 11723 return ibm != null && ibm.isBackupServiceActive(UserHandle.USER_SYSTEM); 11724 } catch (RemoteException e) { 11725 throw new IllegalStateException("Failed requesting backup service state.", e); 11726 } 11727 } 11728 } 11729 11730 @Override 11731 public void setMandatoryBackupTransport( 11732 ComponentName admin, ComponentName backupTransportComponent) { 11733 if (!mHasFeature) { 11734 return; 11735 } 11736 Preconditions.checkNotNull(admin); 11737 synchronized (this) { 11738 ActiveAdmin activeAdmin = 11739 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11740 if (!Objects.equals(backupTransportComponent, activeAdmin.mandatoryBackupTransport)) { 11741 activeAdmin.mandatoryBackupTransport = backupTransportComponent; 11742 saveSettingsLocked(UserHandle.USER_SYSTEM); 11743 } 11744 } 11745 final long identity = mInjector.binderClearCallingIdentity(); 11746 try { 11747 IBackupManager ibm = mInjector.getIBackupManager(); 11748 if (ibm != null && backupTransportComponent != null) { 11749 if (!ibm.isBackupServiceActive(UserHandle.USER_SYSTEM)) { 11750 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, true); 11751 } 11752 ibm.selectBackupTransportAsync(backupTransportComponent, null); 11753 ibm.setBackupEnabled(true); 11754 } 11755 } catch (RemoteException e) { 11756 throw new IllegalStateException("Failed to set mandatory backup transport.", e); 11757 } finally { 11758 mInjector.binderRestoreCallingIdentity(identity); 11759 } 11760 } 11761 11762 @Override 11763 public ComponentName getMandatoryBackupTransport() { 11764 if (!mHasFeature) { 11765 return null; 11766 } 11767 synchronized (this) { 11768 ActiveAdmin activeAdmin = getDeviceOwnerAdminLocked(); 11769 return activeAdmin == null ? null : activeAdmin.mandatoryBackupTransport; 11770 } 11771 } 11772 11773 11774 @Override 11775 public boolean bindDeviceAdminServiceAsUser( 11776 @NonNull ComponentName admin, @NonNull IApplicationThread caller, 11777 @Nullable IBinder activtiyToken, @NonNull Intent serviceIntent, 11778 @NonNull IServiceConnection connection, int flags, @UserIdInt int targetUserId) { 11779 if (!mHasFeature) { 11780 return false; 11781 } 11782 Preconditions.checkNotNull(admin); 11783 Preconditions.checkNotNull(caller); 11784 Preconditions.checkNotNull(serviceIntent); 11785 Preconditions.checkArgument( 11786 serviceIntent.getComponent() != null || serviceIntent.getPackage() != null, 11787 "Service intent must be explicit (with a package name or component): " 11788 + serviceIntent); 11789 Preconditions.checkNotNull(connection); 11790 Preconditions.checkArgument(mInjector.userHandleGetCallingUserId() != targetUserId, 11791 "target user id must be different from the calling user id"); 11792 11793 if (!getBindDeviceAdminTargetUsers(admin).contains(UserHandle.of(targetUserId))) { 11794 throw new SecurityException("Not allowed to bind to target user id"); 11795 } 11796 11797 final String targetPackage; 11798 synchronized (this) { 11799 targetPackage = getOwnerPackageNameForUserLocked(targetUserId); 11800 } 11801 11802 final long callingIdentity = mInjector.binderClearCallingIdentity(); 11803 try { 11804 // Validate and sanitize the incoming service intent. 11805 final Intent sanitizedIntent = 11806 createCrossUserServiceIntent(serviceIntent, targetPackage, targetUserId); 11807 if (sanitizedIntent == null) { 11808 // Fail, cannot lookup the target service. 11809 return false; 11810 } 11811 // Ask ActivityManager to bind it. Notice that we are binding the service with the 11812 // caller app instead of DevicePolicyManagerService. 11813 return mInjector.getIActivityManager().bindService( 11814 caller, activtiyToken, serviceIntent, 11815 serviceIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 11816 connection, flags, mContext.getOpPackageName(), 11817 targetUserId) != 0; 11818 } catch (RemoteException ex) { 11819 // Same process, should not happen. 11820 } finally { 11821 mInjector.binderRestoreCallingIdentity(callingIdentity); 11822 } 11823 11824 // Failed to bind. 11825 return false; 11826 } 11827 11828 @Override 11829 public @NonNull List<UserHandle> getBindDeviceAdminTargetUsers(@NonNull ComponentName admin) { 11830 if (!mHasFeature) { 11831 return Collections.emptyList(); 11832 } 11833 Preconditions.checkNotNull(admin); 11834 11835 synchronized (this) { 11836 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11837 11838 final int callingUserId = mInjector.userHandleGetCallingUserId(); 11839 final long callingIdentity = mInjector.binderClearCallingIdentity(); 11840 try { 11841 ArrayList<UserHandle> targetUsers = new ArrayList<>(); 11842 if (!isDeviceOwner(admin, callingUserId)) { 11843 // Profile owners can only bind to the device owner. 11844 if (canUserBindToDeviceOwnerLocked(callingUserId)) { 11845 targetUsers.add(UserHandle.of(mOwners.getDeviceOwnerUserId())); 11846 } 11847 } else { 11848 // Caller is the device owner: Look for profile owners that it can bind to. 11849 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 11850 for (int i = 0; i < userInfos.size(); i++) { 11851 final int userId = userInfos.get(i).id; 11852 if (userId != callingUserId && canUserBindToDeviceOwnerLocked(userId)) { 11853 targetUsers.add(UserHandle.of(userId)); 11854 } 11855 } 11856 } 11857 11858 return targetUsers; 11859 } finally { 11860 mInjector.binderRestoreCallingIdentity(callingIdentity); 11861 } 11862 } 11863 } 11864 11865 private boolean canUserBindToDeviceOwnerLocked(int userId) { 11866 // There has to be a device owner, under another user id. 11867 if (!mOwners.hasDeviceOwner() || userId == mOwners.getDeviceOwnerUserId()) { 11868 return false; 11869 } 11870 11871 // The user must have a profile owner that belongs to the same package as the device owner. 11872 if (!mOwners.hasProfileOwner(userId) || !TextUtils.equals( 11873 mOwners.getDeviceOwnerPackageName(), mOwners.getProfileOwnerPackage(userId))) { 11874 return false; 11875 } 11876 11877 // The user must be affiliated. 11878 return isUserAffiliatedWithDeviceLocked(userId); 11879 } 11880 11881 /** 11882 * Return true if a given user has any accounts that'll prevent installing a device or profile 11883 * owner {@code owner}. 11884 * - If the user has no accounts, then return false. 11885 * - Otherwise, if the owner is unknown (== null), or is not test-only, then return true. 11886 * - Otherwise, if there's any account that does not have ..._ALLOWED, or does have 11887 * ..._DISALLOWED, return true. 11888 * - Otherwise return false. 11889 * 11890 * If the caller is *not* ADB, it also returns true. The returned value shouldn't be used 11891 * when the caller is not ADB. 11892 * 11893 * DO NOT CALL IT WITH THE DPMS LOCK HELD. 11894 */ 11895 private boolean hasIncompatibleAccountsOrNonAdbNoLock( 11896 int userId, @Nullable ComponentName owner) { 11897 if (!isAdb()) { 11898 return true; 11899 } 11900 wtfIfInLock(); 11901 11902 final long token = mInjector.binderClearCallingIdentity(); 11903 try { 11904 final AccountManager am = AccountManager.get(mContext); 11905 final Account accounts[] = am.getAccountsAsUser(userId); 11906 if (accounts.length == 0) { 11907 return false; 11908 } 11909 synchronized (this) { 11910 if (owner == null || !isAdminTestOnlyLocked(owner, userId)) { 11911 Log.w(LOG_TAG, 11912 "Non test-only owner can't be installed with existing accounts."); 11913 return true; 11914 } 11915 } 11916 11917 final String[] feature_allow = 11918 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_ALLOWED }; 11919 final String[] feature_disallow = 11920 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_DISALLOWED }; 11921 11922 boolean compatible = true; 11923 for (Account account : accounts) { 11924 if (hasAccountFeatures(am, account, feature_disallow)) { 11925 Log.e(LOG_TAG, account + " has " + feature_disallow[0]); 11926 compatible = false; 11927 break; 11928 } 11929 if (!hasAccountFeatures(am, account, feature_allow)) { 11930 Log.e(LOG_TAG, account + " doesn't have " + feature_allow[0]); 11931 compatible = false; 11932 break; 11933 } 11934 } 11935 if (compatible) { 11936 Log.w(LOG_TAG, "All accounts are compatible"); 11937 } else { 11938 Log.e(LOG_TAG, "Found incompatible accounts"); 11939 } 11940 return !compatible; 11941 } finally { 11942 mInjector.binderRestoreCallingIdentity(token); 11943 } 11944 } 11945 11946 private boolean hasAccountFeatures(AccountManager am, Account account, String[] features) { 11947 try { 11948 return am.hasFeatures(account, features, null, null).getResult(); 11949 } catch (Exception e) { 11950 Log.w(LOG_TAG, "Failed to get account feature", e); 11951 return false; 11952 } 11953 } 11954 11955 private boolean isAdb() { 11956 final int callingUid = mInjector.binderGetCallingUid(); 11957 return callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID; 11958 } 11959 11960 @Override 11961 public synchronized void setNetworkLoggingEnabled(ComponentName admin, boolean enabled) { 11962 if (!mHasFeature) { 11963 return; 11964 } 11965 Preconditions.checkNotNull(admin); 11966 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11967 11968 if (enabled == isNetworkLoggingEnabledInternalLocked()) { 11969 // already in the requested state 11970 return; 11971 } 11972 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 11973 deviceOwner.isNetworkLoggingEnabled = enabled; 11974 if (!enabled) { 11975 deviceOwner.numNetworkLoggingNotifications = 0; 11976 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 11977 } 11978 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 11979 11980 setNetworkLoggingActiveInternal(enabled); 11981 } 11982 11983 private synchronized void setNetworkLoggingActiveInternal(boolean active) { 11984 final long callingIdentity = mInjector.binderClearCallingIdentity(); 11985 try { 11986 if (active) { 11987 mNetworkLogger = new NetworkLogger(this, mInjector.getPackageManagerInternal()); 11988 if (!mNetworkLogger.startNetworkLogging()) { 11989 mNetworkLogger = null; 11990 Slog.wtf(LOG_TAG, "Network logging could not be started due to the logging" 11991 + " service not being available yet."); 11992 } 11993 maybePauseDeviceWideLoggingLocked(); 11994 sendNetworkLoggingNotificationLocked(); 11995 } else { 11996 if (mNetworkLogger != null && !mNetworkLogger.stopNetworkLogging()) { 11997 Slog.wtf(LOG_TAG, "Network logging could not be stopped due to the logging" 11998 + " service not being available yet."); 11999 } 12000 mNetworkLogger = null; 12001 mInjector.getNotificationManager().cancel(SystemMessage.NOTE_NETWORK_LOGGING); 12002 } 12003 } finally { 12004 mInjector.binderRestoreCallingIdentity(callingIdentity); 12005 } 12006 } 12007 12008 /** Pauses security and network logging if there are unaffiliated users on the device */ 12009 private void maybePauseDeviceWideLoggingLocked() { 12010 if (!areAllUsersAffiliatedWithDeviceLocked()) { 12011 Slog.i(LOG_TAG, "There are unaffiliated users, security and network logging will be " 12012 + "paused if enabled."); 12013 mSecurityLogMonitor.pause(); 12014 if (mNetworkLogger != null) { 12015 mNetworkLogger.pause(); 12016 } 12017 } 12018 } 12019 12020 /** Resumes security and network logging (if they are enabled) if all users are affiliated */ 12021 private void maybeResumeDeviceWideLoggingLocked() { 12022 if (areAllUsersAffiliatedWithDeviceLocked()) { 12023 final long ident = mInjector.binderClearCallingIdentity(); 12024 try { 12025 mSecurityLogMonitor.resume(); 12026 if (mNetworkLogger != null) { 12027 mNetworkLogger.resume(); 12028 } 12029 } finally { 12030 mInjector.binderRestoreCallingIdentity(ident); 12031 } 12032 } 12033 } 12034 12035 /** Deletes any security and network logs that might have been collected so far */ 12036 private void discardDeviceWideLogsLocked() { 12037 mSecurityLogMonitor.discardLogs(); 12038 if (mNetworkLogger != null) { 12039 mNetworkLogger.discardLogs(); 12040 } 12041 // TODO: We should discard pre-boot security logs here too, as otherwise those 12042 // logs (which might contain data from the user just removed) will be 12043 // available after next boot. 12044 } 12045 12046 @Override 12047 public boolean isNetworkLoggingEnabled(ComponentName admin) { 12048 if (!mHasFeature) { 12049 return false; 12050 } 12051 synchronized (this) { 12052 enforceDeviceOwnerOrManageUsers(); 12053 return isNetworkLoggingEnabledInternalLocked(); 12054 } 12055 } 12056 12057 private boolean isNetworkLoggingEnabledInternalLocked() { 12058 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 12059 return (deviceOwner != null) && deviceOwner.isNetworkLoggingEnabled; 12060 } 12061 12062 /* 12063 * A maximum of 1200 events are returned, and the total marshalled size is in the order of 12064 * 100kB, so returning a List instead of ParceledListSlice is acceptable. 12065 * Ideally this would be done with ParceledList, however it only supports homogeneous types. 12066 * 12067 * @see NetworkLoggingHandler#MAX_EVENTS_PER_BATCH 12068 */ 12069 @Override 12070 public List<NetworkEvent> retrieveNetworkLogs(ComponentName admin, long batchToken) { 12071 if (!mHasFeature) { 12072 return null; 12073 } 12074 Preconditions.checkNotNull(admin); 12075 ensureDeviceOwnerAndAllUsersAffiliated(admin); 12076 12077 synchronized (this) { 12078 if (mNetworkLogger == null 12079 || !isNetworkLoggingEnabledInternalLocked()) { 12080 return null; 12081 } 12082 12083 final long currentTime = System.currentTimeMillis(); 12084 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 12085 if (currentTime > policyData.mLastNetworkLogsRetrievalTime) { 12086 policyData.mLastNetworkLogsRetrievalTime = currentTime; 12087 saveSettingsLocked(UserHandle.USER_SYSTEM); 12088 } 12089 return mNetworkLogger.retrieveLogs(batchToken); 12090 } 12091 } 12092 12093 private void sendNetworkLoggingNotificationLocked() { 12094 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 12095 if (deviceOwner == null || !deviceOwner.isNetworkLoggingEnabled) { 12096 return; 12097 } 12098 if (deviceOwner.numNetworkLoggingNotifications >= 12099 ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 12100 return; 12101 } 12102 final long now = System.currentTimeMillis(); 12103 if (now - deviceOwner.lastNetworkLoggingNotificationTimeMs < MS_PER_DAY) { 12104 return; 12105 } 12106 deviceOwner.numNetworkLoggingNotifications++; 12107 if (deviceOwner.numNetworkLoggingNotifications 12108 >= ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 12109 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 12110 } else { 12111 deviceOwner.lastNetworkLoggingNotificationTimeMs = now; 12112 } 12113 final Intent intent = new Intent(DevicePolicyManager.ACTION_SHOW_DEVICE_MONITORING_DIALOG); 12114 intent.setPackage("com.android.systemui"); 12115 final PendingIntent pendingIntent = PendingIntent.getBroadcastAsUser(mContext, 0, intent, 0, 12116 UserHandle.CURRENT); 12117 Notification notification = 12118 new Notification.Builder(mContext, SystemNotificationChannels.DEVICE_ADMIN) 12119 .setSmallIcon(R.drawable.ic_info_outline) 12120 .setContentTitle(mContext.getString(R.string.network_logging_notification_title)) 12121 .setContentText(mContext.getString(R.string.network_logging_notification_text)) 12122 .setTicker(mContext.getString(R.string.network_logging_notification_title)) 12123 .setShowWhen(true) 12124 .setContentIntent(pendingIntent) 12125 .setStyle(new Notification.BigTextStyle() 12126 .bigText(mContext.getString(R.string.network_logging_notification_text))) 12127 .build(); 12128 mInjector.getNotificationManager().notify(SystemMessage.NOTE_NETWORK_LOGGING, notification); 12129 saveSettingsLocked(mOwners.getDeviceOwnerUserId()); 12130 } 12131 12132 /** 12133 * Return the package name of owner in a given user. 12134 */ 12135 private String getOwnerPackageNameForUserLocked(int userId) { 12136 return mOwners.getDeviceOwnerUserId() == userId 12137 ? mOwners.getDeviceOwnerPackageName() 12138 : mOwners.getProfileOwnerPackage(userId); 12139 } 12140 12141 /** 12142 * @param rawIntent Original service intent specified by caller. It must be explicit. 12143 * @param expectedPackageName The expected package name of the resolved service. 12144 * @return Intent that have component explicitly set. {@code null} if no service is resolved 12145 * with the given intent. 12146 * @throws SecurityException if the intent is resolved to an invalid service. 12147 */ 12148 private Intent createCrossUserServiceIntent( 12149 @NonNull Intent rawIntent, @NonNull String expectedPackageName, 12150 @UserIdInt int targetUserId) throws RemoteException, SecurityException { 12151 ResolveInfo info = mIPackageManager.resolveService( 12152 rawIntent, 12153 rawIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 12154 0, // flags 12155 targetUserId); 12156 if (info == null || info.serviceInfo == null) { 12157 Log.e(LOG_TAG, "Fail to look up the service: " + rawIntent 12158 + " or user " + targetUserId + " is not running"); 12159 return null; 12160 } 12161 if (!expectedPackageName.equals(info.serviceInfo.packageName)) { 12162 throw new SecurityException("Only allow to bind service in " + expectedPackageName); 12163 } 12164 // STOPSHIP(b/37624960): Remove info.serviceInfo.exported before release. 12165 if (info.serviceInfo.exported && !BIND_DEVICE_ADMIN.equals(info.serviceInfo.permission)) { 12166 throw new SecurityException( 12167 "Service must be protected by BIND_DEVICE_ADMIN permission"); 12168 } 12169 // It is the system server to bind the service, it would be extremely dangerous if it 12170 // can be exploited to bind any service. Set the component explicitly to make sure we 12171 // do not bind anything accidentally. 12172 rawIntent.setComponent(info.serviceInfo.getComponentName()); 12173 return rawIntent; 12174 } 12175 12176 @Override 12177 public long getLastSecurityLogRetrievalTime() { 12178 enforceDeviceOwnerOrManageUsers(); 12179 return getUserData(UserHandle.USER_SYSTEM).mLastSecurityLogRetrievalTime; 12180 } 12181 12182 @Override 12183 public long getLastBugReportRequestTime() { 12184 enforceDeviceOwnerOrManageUsers(); 12185 return getUserData(UserHandle.USER_SYSTEM).mLastBugReportRequestTime; 12186 } 12187 12188 @Override 12189 public long getLastNetworkLogRetrievalTime() { 12190 enforceDeviceOwnerOrManageUsers(); 12191 return getUserData(UserHandle.USER_SYSTEM).mLastNetworkLogsRetrievalTime; 12192 } 12193 12194 @Override 12195 public boolean setResetPasswordToken(ComponentName admin, byte[] token) { 12196 if (!mHasFeature) { 12197 return false; 12198 } 12199 if (token == null || token.length < 32) { 12200 throw new IllegalArgumentException("token must be at least 32-byte long"); 12201 } 12202 synchronized (this) { 12203 final int userHandle = mInjector.userHandleGetCallingUserId(); 12204 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12205 12206 DevicePolicyData policy = getUserData(userHandle); 12207 long ident = mInjector.binderClearCallingIdentity(); 12208 try { 12209 if (policy.mPasswordTokenHandle != 0) { 12210 mLockPatternUtils.removeEscrowToken(policy.mPasswordTokenHandle, userHandle); 12211 } 12212 12213 policy.mPasswordTokenHandle = mLockPatternUtils.addEscrowToken(token, userHandle); 12214 saveSettingsLocked(userHandle); 12215 return policy.mPasswordTokenHandle != 0; 12216 } finally { 12217 mInjector.binderRestoreCallingIdentity(ident); 12218 } 12219 } 12220 } 12221 12222 @Override 12223 public boolean clearResetPasswordToken(ComponentName admin) { 12224 if (!mHasFeature) { 12225 return false; 12226 } 12227 synchronized (this) { 12228 final int userHandle = mInjector.userHandleGetCallingUserId(); 12229 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12230 12231 DevicePolicyData policy = getUserData(userHandle); 12232 if (policy.mPasswordTokenHandle != 0) { 12233 long ident = mInjector.binderClearCallingIdentity(); 12234 try { 12235 boolean result = mLockPatternUtils.removeEscrowToken( 12236 policy.mPasswordTokenHandle, userHandle); 12237 policy.mPasswordTokenHandle = 0; 12238 saveSettingsLocked(userHandle); 12239 return result; 12240 } finally { 12241 mInjector.binderRestoreCallingIdentity(ident); 12242 } 12243 } 12244 } 12245 return false; 12246 } 12247 12248 @Override 12249 public boolean isResetPasswordTokenActive(ComponentName admin) { 12250 synchronized (this) { 12251 final int userHandle = mInjector.userHandleGetCallingUserId(); 12252 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12253 12254 DevicePolicyData policy = getUserData(userHandle); 12255 if (policy.mPasswordTokenHandle != 0) { 12256 long ident = mInjector.binderClearCallingIdentity(); 12257 try { 12258 return mLockPatternUtils.isEscrowTokenActive(policy.mPasswordTokenHandle, 12259 userHandle); 12260 } finally { 12261 mInjector.binderRestoreCallingIdentity(ident); 12262 } 12263 } 12264 } 12265 return false; 12266 } 12267 12268 @Override 12269 public boolean resetPasswordWithToken(ComponentName admin, String passwordOrNull, byte[] token, 12270 int flags) { 12271 Preconditions.checkNotNull(token); 12272 synchronized (this) { 12273 final int userHandle = mInjector.userHandleGetCallingUserId(); 12274 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12275 12276 DevicePolicyData policy = getUserData(userHandle); 12277 if (policy.mPasswordTokenHandle != 0) { 12278 final String password = passwordOrNull != null ? passwordOrNull : ""; 12279 return resetPasswordInternal(password, policy.mPasswordTokenHandle, token, 12280 flags, mInjector.binderGetCallingUid(), userHandle); 12281 } else { 12282 Slog.w(LOG_TAG, "No saved token handle"); 12283 } 12284 } 12285 return false; 12286 } 12287 12288 @Override 12289 public boolean isCurrentInputMethodSetByOwner() { 12290 enforceProfileOwnerOrSystemUser(); 12291 return getUserData(mInjector.userHandleGetCallingUserId()).mCurrentInputMethodSet; 12292 } 12293 12294 @Override 12295 public StringParceledListSlice getOwnerInstalledCaCerts(@NonNull UserHandle user) { 12296 final int userId = user.getIdentifier(); 12297 enforceProfileOwnerOrFullCrossUsersPermission(userId); 12298 synchronized (this) { 12299 return new StringParceledListSlice( 12300 new ArrayList<>(getUserData(userId).mOwnerInstalledCaCerts)); 12301 } 12302 } 12303 12304 @Override 12305 public boolean clearApplicationUserData(ComponentName admin, String packageName, 12306 IPackageDataObserver callback) { 12307 Preconditions.checkNotNull(admin, "ComponentName is null"); 12308 synchronized (this) { 12309 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12310 } 12311 final int userId = UserHandle.getCallingUserId(); 12312 12313 long ident = mInjector.binderClearCallingIdentity(); 12314 try { 12315 return ActivityManager.getService().clearApplicationUserData(packageName, false, 12316 callback, userId); 12317 } catch(RemoteException re) { 12318 // Same process, should not happen. 12319 } catch (SecurityException se) { 12320 // This can happen e.g. for device admin packages, do not throw out the exception, 12321 // because callers have no means to know beforehand for which packages this might 12322 // happen. 12323 Slog.w(LOG_TAG, "Not allowed to clear application user data for package " + packageName, 12324 se); 12325 } finally { 12326 mInjector.binderRestoreCallingIdentity(ident); 12327 } 12328 12329 if (callback != null) { 12330 try { 12331 // If there was a throw above, we send back that removal failed 12332 callback.onRemoveCompleted(packageName, false); 12333 } catch (RemoteException re) { 12334 // Caller is no longer available, ignore 12335 } 12336 } 12337 return false; 12338 } 12339 12340 @Override 12341 public synchronized void setLogoutEnabled(ComponentName admin, boolean enabled) { 12342 if (!mHasFeature) { 12343 return; 12344 } 12345 Preconditions.checkNotNull(admin); 12346 12347 synchronized (this) { 12348 ActiveAdmin deviceOwner = 12349 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12350 12351 if (deviceOwner.isLogoutEnabled == enabled) { 12352 // already in the requested state 12353 return; 12354 } 12355 deviceOwner.isLogoutEnabled = enabled; 12356 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 12357 } 12358 } 12359 12360 @Override 12361 public boolean isLogoutEnabled() { 12362 if (!mHasFeature) { 12363 return false; 12364 } 12365 synchronized (this) { 12366 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 12367 return (deviceOwner != null) && deviceOwner.isLogoutEnabled; 12368 } 12369 } 12370 12371 @Override 12372 public List<String> getDisallowedSystemApps(ComponentName admin, int userId, 12373 String provisioningAction) throws RemoteException { 12374 enforceCanManageProfileAndDeviceOwners(); 12375 return new ArrayList<>( 12376 mOverlayPackagesProvider.getNonRequiredApps(admin, userId, provisioningAction)); 12377 } 12378 12379 @Override 12380 public void transferOwnership(@NonNull ComponentName admin, @NonNull ComponentName target, 12381 @Nullable PersistableBundle bundle) { 12382 if (!mHasFeature) { 12383 return; 12384 } 12385 12386 Preconditions.checkNotNull(admin, "Admin cannot be null."); 12387 Preconditions.checkNotNull(target, "Target cannot be null."); 12388 12389 enforceProfileOrDeviceOwner(admin); 12390 12391 if (admin.equals(target)) { 12392 throw new IllegalArgumentException("Provided administrator and target are " 12393 + "the same object."); 12394 } 12395 12396 if (admin.getPackageName().equals(target.getPackageName())) { 12397 throw new IllegalArgumentException("Provided administrator and target have " 12398 + "the same package name."); 12399 } 12400 12401 final int callingUserId = mInjector.userHandleGetCallingUserId(); 12402 final DevicePolicyData policy = getUserData(callingUserId); 12403 final DeviceAdminInfo incomingDeviceInfo = findAdmin(target, callingUserId, 12404 /* throwForMissingPermission= */ true); 12405 checkActiveAdminPrecondition(target, incomingDeviceInfo, policy); 12406 if (!incomingDeviceInfo.getActivityInfo().metaData 12407 .getBoolean(DeviceAdminReceiver.SUPPORT_TRANSFER_OWNERSHIP_META_DATA, false)) { 12408 throw new IllegalArgumentException("Provided target does not support " 12409 + "ownership transfer."); 12410 } 12411 12412 final long id = mInjector.binderClearCallingIdentity(); 12413 try { 12414 synchronized (this) { 12415 /* 12416 * We must ensure the whole process is atomic to prevent the device from ending up 12417 * in an invalid state (e.g. no active admin). This could happen if the device 12418 * is rebooted or work mode is turned off mid-transfer. 12419 * In order to guarantee atomicity, we: 12420 * 12421 * 1. Save an atomic journal file describing the transfer process 12422 * 2. Perform the transfer itself 12423 * 3. Delete the journal file 12424 * 12425 * That way if the journal file exists on device boot, we know that the transfer 12426 * must be reverted back to the original administrator. This logic is implemented in 12427 * revertTransferOwnershipIfNecessaryLocked. 12428 * */ 12429 if (bundle == null) { 12430 bundle = new PersistableBundle(); 12431 } 12432 if (isProfileOwner(admin, callingUserId)) { 12433 prepareTransfer(admin, target, bundle, callingUserId, 12434 ADMIN_TYPE_PROFILE_OWNER); 12435 transferProfileOwnershipLocked(admin, target, callingUserId); 12436 sendProfileOwnerCommand(DeviceAdminReceiver.ACTION_TRANSFER_OWNERSHIP_COMPLETE, 12437 getTransferOwnershipAdminExtras(bundle), callingUserId); 12438 postTransfer(DevicePolicyManager.ACTION_PROFILE_OWNER_CHANGED, callingUserId); 12439 if (isUserAffiliatedWithDeviceLocked(callingUserId)) { 12440 notifyAffiliatedProfileTransferOwnershipComplete(callingUserId); 12441 } 12442 } else if (isDeviceOwner(admin, callingUserId)) { 12443 prepareTransfer(admin, target, bundle, callingUserId, 12444 ADMIN_TYPE_DEVICE_OWNER); 12445 transferDeviceOwnershipLocked(admin, target, callingUserId); 12446 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_TRANSFER_OWNERSHIP_COMPLETE, 12447 getTransferOwnershipAdminExtras(bundle)); 12448 postTransfer(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED, callingUserId); 12449 } 12450 } 12451 } finally { 12452 mInjector.binderRestoreCallingIdentity(id); 12453 } 12454 } 12455 12456 private void prepareTransfer(ComponentName admin, ComponentName target, 12457 PersistableBundle bundle, int callingUserId, String adminType) { 12458 saveTransferOwnershipBundleLocked(bundle, callingUserId); 12459 mTransferOwnershipMetadataManager.saveMetadataFile( 12460 new TransferOwnershipMetadataManager.Metadata(admin, target, 12461 callingUserId, adminType)); 12462 } 12463 12464 private void postTransfer(String broadcast, int callingUserId) { 12465 deleteTransferOwnershipMetadataFileLocked(); 12466 sendOwnerChangedBroadcast(broadcast, callingUserId); 12467 } 12468 12469 private void notifyAffiliatedProfileTransferOwnershipComplete(int callingUserId) { 12470 final Bundle extras = new Bundle(); 12471 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(callingUserId)); 12472 sendDeviceOwnerCommand( 12473 DeviceAdminReceiver.ACTION_AFFILIATED_PROFILE_TRANSFER_OWNERSHIP_COMPLETE, extras); 12474 } 12475 12476 /** 12477 * Transfers the profile owner for user with id profileOwnerUserId from admin to target. 12478 */ 12479 private void transferProfileOwnershipLocked(ComponentName admin, ComponentName target, 12480 int profileOwnerUserId) { 12481 transferActiveAdminUncheckedLocked(target, admin, profileOwnerUserId); 12482 mOwners.transferProfileOwner(target, profileOwnerUserId); 12483 Slog.i(LOG_TAG, "Profile owner set: " + target + " on user " + profileOwnerUserId); 12484 mOwners.writeProfileOwner(profileOwnerUserId); 12485 mDeviceAdminServiceController.startServiceForOwner( 12486 target.getPackageName(), profileOwnerUserId, "transfer-profile-owner"); 12487 } 12488 12489 /** 12490 * Transfers the device owner for user with id userId from admin to target. 12491 */ 12492 private void transferDeviceOwnershipLocked(ComponentName admin, ComponentName target, int userId) { 12493 transferActiveAdminUncheckedLocked(target, admin, userId); 12494 mOwners.transferDeviceOwnership(target); 12495 Slog.i(LOG_TAG, "Device owner set: " + target + " on user " + userId); 12496 mOwners.writeDeviceOwner(); 12497 mDeviceAdminServiceController.startServiceForOwner( 12498 target.getPackageName(), userId, "transfer-device-owner"); 12499 } 12500 12501 private Bundle getTransferOwnershipAdminExtras(PersistableBundle bundle) { 12502 Bundle extras = new Bundle(); 12503 if (bundle != null) { 12504 extras.putParcelable(EXTRA_TRANSFER_OWNERSHIP_ADMIN_EXTRAS_BUNDLE, bundle); 12505 } 12506 return extras; 12507 } 12508 12509 @Override 12510 public void setStartUserSessionMessage( 12511 ComponentName admin, CharSequence startUserSessionMessage) { 12512 if (!mHasFeature) { 12513 return; 12514 } 12515 Preconditions.checkNotNull(admin); 12516 12517 final String startUserSessionMessageString = 12518 startUserSessionMessage != null ? startUserSessionMessage.toString() : null; 12519 12520 synchronized (this) { 12521 final ActiveAdmin deviceOwner = 12522 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12523 12524 if (TextUtils.equals(deviceOwner.startUserSessionMessage, startUserSessionMessage)) { 12525 return; 12526 } 12527 deviceOwner.startUserSessionMessage = startUserSessionMessageString; 12528 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 12529 } 12530 12531 mInjector.getActivityManagerInternal() 12532 .setSwitchingFromSystemUserMessage(startUserSessionMessageString); 12533 } 12534 12535 @Override 12536 public void setEndUserSessionMessage(ComponentName admin, CharSequence endUserSessionMessage) { 12537 if (!mHasFeature) { 12538 return; 12539 } 12540 Preconditions.checkNotNull(admin); 12541 12542 final String endUserSessionMessageString = 12543 endUserSessionMessage != null ? endUserSessionMessage.toString() : null; 12544 12545 synchronized (this) { 12546 final ActiveAdmin deviceOwner = 12547 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12548 12549 if (TextUtils.equals(deviceOwner.endUserSessionMessage, endUserSessionMessage)) { 12550 return; 12551 } 12552 deviceOwner.endUserSessionMessage = endUserSessionMessageString; 12553 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 12554 } 12555 12556 mInjector.getActivityManagerInternal() 12557 .setSwitchingToSystemUserMessage(endUserSessionMessageString); 12558 } 12559 12560 @Override 12561 public String getStartUserSessionMessage(ComponentName admin) { 12562 if (!mHasFeature) { 12563 return null; 12564 } 12565 Preconditions.checkNotNull(admin); 12566 12567 synchronized (this) { 12568 final ActiveAdmin deviceOwner = 12569 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12570 return deviceOwner.startUserSessionMessage; 12571 } 12572 } 12573 12574 @Override 12575 public String getEndUserSessionMessage(ComponentName admin) { 12576 if (!mHasFeature) { 12577 return null; 12578 } 12579 Preconditions.checkNotNull(admin); 12580 12581 synchronized (this) { 12582 final ActiveAdmin deviceOwner = 12583 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12584 return deviceOwner.endUserSessionMessage; 12585 } 12586 } 12587 12588 private boolean hasPrinting() { 12589 return mInjector.getPackageManager().hasSystemFeature(PackageManager.FEATURE_PRINTING); 12590 } 12591 12592 @Override 12593 public void setPrintingEnabled(ComponentName admin, boolean enabled) { 12594 if (!mHasFeature || !hasPrinting()) { 12595 return; 12596 } 12597 Preconditions.checkNotNull(admin, "Admin cannot be null."); 12598 enforceProfileOrDeviceOwner(admin); 12599 synchronized (this) { 12600 final int userHandle = mInjector.userHandleGetCallingUserId(); 12601 DevicePolicyData policy = getUserData(userHandle); 12602 if (policy.mPrintingEnabled != enabled) { 12603 policy.mPrintingEnabled = enabled; 12604 saveSettingsLocked(userHandle); 12605 } 12606 } 12607 } 12608 12609 private void deleteTransferOwnershipMetadataFileLocked() { 12610 mTransferOwnershipMetadataManager.deleteMetadataFile(); 12611 } 12612 12613 @Override 12614 @Nullable 12615 public PersistableBundle getTransferOwnershipBundle() { 12616 synchronized (this) { 12617 final int callingUserId = mInjector.userHandleGetCallingUserId(); 12618 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12619 final File bundleFile = new File( 12620 mInjector.environmentGetUserSystemDirectory(callingUserId), 12621 TRANSFER_OWNERSHIP_PARAMETERS_XML); 12622 if (!bundleFile.exists()) { 12623 return null; 12624 } 12625 try (FileInputStream stream = new FileInputStream(bundleFile)) { 12626 XmlPullParser parser = Xml.newPullParser(); 12627 parser.setInput(stream, null); 12628 return PersistableBundle.restoreFromXml(parser); 12629 } catch (IOException | XmlPullParserException | IllegalArgumentException e) { 12630 Slog.e(LOG_TAG, "Caught exception while trying to load the " 12631 + "owner transfer parameters from file " + bundleFile, e); 12632 return null; 12633 } 12634 } 12635 } 12636 12637 /** 12638 * Returns whether printing is enabled for current user. 12639 * @hide 12640 */ 12641 @Override 12642 public boolean isPrintingEnabled() { 12643 if (!hasPrinting()) { 12644 return false; 12645 } 12646 if (!mHasFeature) { 12647 return true; 12648 } 12649 synchronized (this) { 12650 final int userHandle = mInjector.userHandleGetCallingUserId(); 12651 DevicePolicyData policy = getUserData(userHandle); 12652 return policy.mPrintingEnabled; 12653 } 12654 } 12655 12656 @Override 12657 public int addOverrideApn(@NonNull ComponentName who, @NonNull ApnSetting apnSetting) { 12658 if (!mHasFeature) { 12659 return -1; 12660 } 12661 Preconditions.checkNotNull(who, "ComponentName is null in addOverrideApn"); 12662 Preconditions.checkNotNull(apnSetting, "ApnSetting is null in addOverrideApn"); 12663 synchronized (this) { 12664 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12665 } 12666 12667 int operatedId = -1; 12668 Uri resultUri; 12669 final long id = mInjector.binderClearCallingIdentity(); 12670 try { 12671 resultUri = mContext.getContentResolver().insert(DPC_URI, apnSetting.toContentValues()); 12672 } finally { 12673 mInjector.binderRestoreCallingIdentity(id); 12674 } 12675 if (resultUri != null) { 12676 try { 12677 operatedId = Integer.parseInt(resultUri.getLastPathSegment()); 12678 } catch (NumberFormatException e) { 12679 Slog.e(LOG_TAG, "Failed to parse inserted override APN id.", e); 12680 } 12681 } 12682 12683 return operatedId; 12684 } 12685 12686 @Override 12687 public boolean updateOverrideApn(@NonNull ComponentName who, int apnId, 12688 @NonNull ApnSetting apnSetting) { 12689 if (!mHasFeature) { 12690 return false; 12691 } 12692 Preconditions.checkNotNull(who, "ComponentName is null in updateOverrideApn"); 12693 Preconditions.checkNotNull(apnSetting, "ApnSetting is null in updateOverrideApn"); 12694 synchronized (this) { 12695 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12696 } 12697 12698 if (apnId < 0) { 12699 return false; 12700 } 12701 final long id = mInjector.binderClearCallingIdentity(); 12702 try { 12703 return mContext.getContentResolver().update( 12704 Uri.withAppendedPath(DPC_URI, Integer.toString(apnId)), 12705 apnSetting.toContentValues(), null, null) > 0; 12706 } finally { 12707 mInjector.binderRestoreCallingIdentity(id); 12708 } 12709 } 12710 12711 @Override 12712 public boolean removeOverrideApn(@NonNull ComponentName who, int apnId) { 12713 if (!mHasFeature) { 12714 return false; 12715 } 12716 Preconditions.checkNotNull(who, "ComponentName is null in removeOverrideApn"); 12717 synchronized (this) { 12718 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12719 } 12720 12721 return removeOverrideApnUnchecked(apnId); 12722 } 12723 12724 private boolean removeOverrideApnUnchecked(int apnId) { 12725 if(apnId < 0) { 12726 return false; 12727 } 12728 int numDeleted = 0; 12729 final long id = mInjector.binderClearCallingIdentity(); 12730 try { 12731 numDeleted = mContext.getContentResolver().delete( 12732 Uri.withAppendedPath(DPC_URI, Integer.toString(apnId)), null, null); 12733 } finally { 12734 mInjector.binderRestoreCallingIdentity(id); 12735 } 12736 return numDeleted > 0; 12737 } 12738 12739 @Override 12740 public List<ApnSetting> getOverrideApns(@NonNull ComponentName who) { 12741 if (!mHasFeature) { 12742 return Collections.emptyList(); 12743 } 12744 Preconditions.checkNotNull(who, "ComponentName is null in getOverrideApns"); 12745 synchronized (this) { 12746 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12747 } 12748 12749 return getOverrideApnsUnchecked(); 12750 } 12751 12752 private List<ApnSetting> getOverrideApnsUnchecked() { 12753 final Cursor cursor; 12754 final long id = mInjector.binderClearCallingIdentity(); 12755 try { 12756 cursor = mContext.getContentResolver().query(DPC_URI, null, null, null, null); 12757 } finally { 12758 mInjector.binderRestoreCallingIdentity(id); 12759 } 12760 12761 if (cursor == null) { 12762 return Collections.emptyList(); 12763 } 12764 try { 12765 List<ApnSetting> apnList = new ArrayList<ApnSetting>(); 12766 cursor.moveToPosition(-1); 12767 while (cursor.moveToNext()) { 12768 ApnSetting apn = ApnSetting.makeApnSetting(cursor); 12769 apnList.add(apn); 12770 } 12771 return apnList; 12772 } finally { 12773 cursor.close(); 12774 } 12775 } 12776 12777 @Override 12778 public void setOverrideApnsEnabled(@NonNull ComponentName who, boolean enabled) { 12779 if (!mHasFeature) { 12780 return; 12781 } 12782 Preconditions.checkNotNull(who, "ComponentName is null in setOverrideApnEnabled"); 12783 synchronized (this) { 12784 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12785 } 12786 12787 setOverrideApnsEnabledUnchecked(enabled); 12788 } 12789 12790 private void setOverrideApnsEnabledUnchecked(boolean enabled) { 12791 ContentValues value = new ContentValues(); 12792 value.put(ENFORCE_KEY, enabled); 12793 final long id = mInjector.binderClearCallingIdentity(); 12794 try { 12795 mContext.getContentResolver().update( 12796 ENFORCE_MANAGED_URI, value, null, null); 12797 } finally { 12798 mInjector.binderRestoreCallingIdentity(id); 12799 } 12800 } 12801 12802 @Override 12803 public boolean isOverrideApnEnabled(@NonNull ComponentName who) { 12804 if (!mHasFeature) { 12805 return false; 12806 } 12807 Preconditions.checkNotNull(who, "ComponentName is null in isOverrideApnEnabled"); 12808 synchronized (this) { 12809 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12810 } 12811 12812 Cursor enforceCursor; 12813 final long id = mInjector.binderClearCallingIdentity(); 12814 try { 12815 enforceCursor = mContext.getContentResolver().query( 12816 ENFORCE_MANAGED_URI, null, null, null, null); 12817 } finally { 12818 mInjector.binderRestoreCallingIdentity(id); 12819 } 12820 12821 if (enforceCursor == null) { 12822 return false; 12823 } 12824 try { 12825 if (enforceCursor.moveToFirst()) { 12826 return enforceCursor.getInt(enforceCursor.getColumnIndex(ENFORCE_KEY)) == 1; 12827 } 12828 } catch (IllegalArgumentException e) { 12829 Slog.e(LOG_TAG, "Cursor returned from ENFORCE_MANAGED_URI doesn't contain " 12830 + "correct info.", e); 12831 } finally { 12832 enforceCursor.close(); 12833 } 12834 return false; 12835 } 12836 12837 @VisibleForTesting 12838 void saveTransferOwnershipBundleLocked(PersistableBundle bundle, int userId) { 12839 final File parametersFile = new File( 12840 mInjector.environmentGetUserSystemDirectory(userId), 12841 TRANSFER_OWNERSHIP_PARAMETERS_XML); 12842 final AtomicFile atomicFile = new AtomicFile(parametersFile); 12843 FileOutputStream stream = null; 12844 try { 12845 stream = atomicFile.startWrite(); 12846 final XmlSerializer serializer = new FastXmlSerializer(); 12847 serializer.setOutput(stream, StandardCharsets.UTF_8.name()); 12848 serializer.startDocument(null, true); 12849 bundle.saveToXml(serializer); 12850 atomicFile.finishWrite(stream); 12851 } catch (IOException | XmlPullParserException e) { 12852 Slog.e(LOG_TAG, "Caught exception while trying to save the " 12853 + "owner transfer parameters to file " + parametersFile, e); 12854 parametersFile.delete(); 12855 atomicFile.failWrite(stream); 12856 } 12857 } 12858 12859 void deleteTransferOwnershipBundleLocked(int userId) { 12860 final File parametersFile = new File(mInjector.environmentGetUserSystemDirectory(userId), 12861 TRANSFER_OWNERSHIP_PARAMETERS_XML); 12862 parametersFile.delete(); 12863 } 12864} 12865