DevicePolicyManagerService.java revision 7e11cc11c82ef24fb01d93ddd0654e20b2be3b48
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.DevicePolicyManager.ACTION_PROVISION_MANAGED_USER; 24import static android.app.admin.DevicePolicyManager.CODE_ACCOUNTS_NOT_EMPTY; 25import static android.app.admin.DevicePolicyManager.CODE_ADD_MANAGED_PROFILE_DISALLOWED; 26import static android.app.admin.DevicePolicyManager.CODE_CANNOT_ADD_MANAGED_PROFILE; 27import static android.app.admin.DevicePolicyManager.CODE_DEVICE_ADMIN_NOT_SUPPORTED; 28import static android.app.admin.DevicePolicyManager.CODE_HAS_DEVICE_OWNER; 29import static android.app.admin.DevicePolicyManager.CODE_HAS_PAIRED; 30import static android.app.admin.DevicePolicyManager.CODE_MANAGED_USERS_NOT_SUPPORTED; 31import static android.app.admin.DevicePolicyManager.CODE_NONSYSTEM_USER_EXISTS; 32import static android.app.admin.DevicePolicyManager.CODE_NOT_SYSTEM_USER; 33import static android.app.admin.DevicePolicyManager.CODE_NOT_SYSTEM_USER_SPLIT; 34import static android.app.admin.DevicePolicyManager.CODE_OK; 35import static android.app.admin.DevicePolicyManager.CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 36import static android.app.admin.DevicePolicyManager.CODE_SYSTEM_USER; 37import static android.app.admin.DevicePolicyManager.CODE_USER_HAS_PROFILE_OWNER; 38import static android.app.admin.DevicePolicyManager.CODE_USER_NOT_RUNNING; 39import static android.app.admin.DevicePolicyManager.CODE_USER_SETUP_COMPLETED; 40import static android.app.admin.DevicePolicyManager.DELEGATION_APP_RESTRICTIONS; 41import static android.app.admin.DevicePolicyManager.DELEGATION_BLOCK_UNINSTALL; 42import static android.app.admin.DevicePolicyManager.DELEGATION_CERT_INSTALL; 43import static android.app.admin.DevicePolicyManager.DELEGATION_ENABLE_SYSTEM_APP; 44import static android.app.admin.DevicePolicyManager.DELEGATION_INSTALL_EXISTING_PACKAGE; 45import static android.app.admin.DevicePolicyManager.DELEGATION_KEEP_UNINSTALLED_PACKAGES; 46import static android.app.admin.DevicePolicyManager.DELEGATION_PACKAGE_ACCESS; 47import static android.app.admin.DevicePolicyManager.DELEGATION_PERMISSION_GRANT; 48import static android.app.admin.DevicePolicyManager.ID_TYPE_BASE_INFO; 49import static android.app.admin.DevicePolicyManager.ID_TYPE_IMEI; 50import static android.app.admin.DevicePolicyManager.ID_TYPE_MEID; 51import static android.app.admin.DevicePolicyManager.ID_TYPE_SERIAL; 52import static android.app.admin.DevicePolicyManager.LEAVE_ALL_SYSTEM_APPS_ENABLED; 53import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 54import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 55import static android.app.admin.DevicePolicyManager.PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 56import static android.app.admin.DevicePolicyManager.START_USER_IN_BACKGROUND; 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; 61import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_ENTRY_POINT_ADB; 62import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 63import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 64import static org.xmlpull.v1.XmlPullParser.END_TAG; 65import static org.xmlpull.v1.XmlPullParser.TEXT; 66 67import android.Manifest.permission; 68import android.accessibilityservice.AccessibilityServiceInfo; 69import android.accounts.Account; 70import android.accounts.AccountManager; 71import android.annotation.NonNull; 72import android.annotation.Nullable; 73import android.annotation.UserIdInt; 74import android.app.Activity; 75import android.app.ActivityManager; 76import android.app.ActivityManagerInternal; 77import android.app.AlarmManager; 78import android.app.AppGlobals; 79import android.app.IActivityManager; 80import android.app.IApplicationThread; 81import android.app.IServiceConnection; 82import android.app.Notification; 83import android.app.NotificationManager; 84import android.app.PendingIntent; 85import android.app.StatusBarManager; 86import android.app.admin.DeviceAdminInfo; 87import android.app.admin.DeviceAdminReceiver; 88import android.app.admin.DevicePolicyManager; 89import android.app.admin.DevicePolicyManagerInternal; 90import android.app.admin.NetworkEvent; 91import android.app.admin.PasswordMetrics; 92import android.app.admin.SecurityLog; 93import android.app.admin.SecurityLog.SecurityEvent; 94import android.app.admin.SystemUpdateInfo; 95import android.app.admin.SystemUpdatePolicy; 96import android.app.backup.IBackupManager; 97import android.app.trust.TrustManager; 98import android.content.BroadcastReceiver; 99import android.content.ComponentName; 100import android.content.Context; 101import android.content.Intent; 102import android.content.IntentFilter; 103import android.content.pm.ActivityInfo; 104import android.content.pm.ApplicationInfo; 105import android.content.pm.IPackageDataObserver; 106import android.content.pm.IPackageManager; 107import android.content.pm.PackageInfo; 108import android.content.pm.PackageManager; 109import android.content.pm.PackageManagerInternal; 110import android.content.pm.PackageManager.NameNotFoundException; 111import android.content.pm.ParceledListSlice; 112import android.content.pm.PermissionInfo; 113import android.content.pm.ResolveInfo; 114import android.content.pm.ServiceInfo; 115import android.content.pm.StringParceledListSlice; 116import android.content.pm.UserInfo; 117import android.content.res.Resources; 118import android.database.ContentObserver; 119import android.graphics.Bitmap; 120import android.graphics.Color; 121import android.media.AudioManager; 122import android.media.IAudioService; 123import android.net.ConnectivityManager; 124import android.net.IIpConnectivityMetrics; 125import android.net.ProxyInfo; 126import android.net.Uri; 127import android.net.metrics.IpConnectivityLog; 128import android.net.wifi.WifiInfo; 129import android.net.wifi.WifiManager; 130import android.os.Binder; 131import android.os.Build; 132import android.os.Bundle; 133import android.os.Environment; 134import android.os.FileUtils; 135import android.os.Handler; 136import android.os.IBinder; 137import android.os.Looper; 138import android.os.ParcelFileDescriptor; 139import android.os.PersistableBundle; 140import android.os.PowerManager; 141import android.os.PowerManagerInternal; 142import android.os.Process; 143import android.os.RecoverySystem; 144import android.os.RemoteCallback; 145import android.os.RemoteException; 146import android.os.ServiceManager; 147import android.os.SystemClock; 148import android.os.SystemProperties; 149import android.os.UserHandle; 150import android.os.UserManager; 151import android.os.UserManagerInternal; 152import android.os.storage.StorageManager; 153import android.provider.ContactsContract.QuickContact; 154import android.provider.ContactsInternal; 155import android.provider.Settings; 156import android.provider.Settings.Global; 157import android.security.IKeyChainAliasCallback; 158import android.security.IKeyChainService; 159import android.security.KeyChain; 160import android.security.KeyChain.KeyChainConnection; 161import android.security.keymaster.KeymasterCertificateChain; 162import android.security.keystore.KeyGenParameterSpec; 163import android.security.keystore.ParcelableKeyGenParameterSpec; 164import android.security.KeyStore; 165import android.service.persistentdata.PersistentDataBlockManager; 166import android.telephony.TelephonyManager; 167import android.text.TextUtils; 168import android.util.ArrayMap; 169import android.util.ArraySet; 170import android.util.Log; 171import android.util.Pair; 172import android.util.Slog; 173import android.util.SparseArray; 174import android.util.Xml; 175import android.view.IWindowManager; 176import android.view.accessibility.AccessibilityManager; 177import android.view.accessibility.IAccessibilityManager; 178import android.view.inputmethod.InputMethodInfo; 179import android.view.inputmethod.InputMethodManager; 180 181import com.android.internal.R; 182import com.android.internal.annotations.GuardedBy; 183import com.android.internal.annotations.VisibleForTesting; 184import com.android.internal.logging.MetricsLogger; 185import com.android.internal.messages.nano.SystemMessageProto.SystemMessage; 186import com.android.internal.notification.SystemNotificationChannels; 187import com.android.internal.os.BackgroundThread; 188import com.android.internal.statusbar.IStatusBarService; 189import com.android.internal.util.DumpUtils; 190import com.android.internal.util.FastXmlSerializer; 191import com.android.internal.util.FunctionalUtils.ThrowingRunnable; 192import com.android.internal.util.JournaledFile; 193import com.android.internal.util.Preconditions; 194import com.android.internal.util.XmlUtils; 195import com.android.internal.widget.LockPatternUtils; 196import com.android.server.LocalServices; 197import com.android.server.SystemService; 198import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 199import com.android.server.pm.UserRestrictionsUtils; 200import com.google.android.collect.Sets; 201 202import org.xmlpull.v1.XmlPullParser; 203import org.xmlpull.v1.XmlPullParserException; 204import org.xmlpull.v1.XmlSerializer; 205 206import java.io.File; 207import java.io.FileDescriptor; 208import java.io.FileInputStream; 209import java.io.FileNotFoundException; 210import java.io.FileOutputStream; 211import java.io.IOException; 212import java.io.PrintWriter; 213import java.lang.IllegalStateException; 214import java.lang.reflect.Constructor; 215import java.nio.charset.StandardCharsets; 216import java.text.DateFormat; 217import java.util.ArrayList; 218import java.util.Arrays; 219import java.util.Collection; 220import java.util.Collections; 221import java.util.Date; 222import java.util.HashMap; 223import java.util.List; 224import java.util.Map.Entry; 225import java.util.Map; 226import java.util.Set; 227import java.util.concurrent.TimeUnit; 228import java.util.concurrent.atomic.AtomicBoolean; 229import java.util.function.Function; 230 231/** 232 * Implementation of the device policy APIs. 233 */ 234public class DevicePolicyManagerService extends BaseIDevicePolicyManager { 235 236 protected static final String LOG_TAG = "DevicePolicyManager"; 237 238 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 239 240 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 241 242 private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate"; 243 244 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 245 246 private static final String TAG_LOCK_TASK_FEATURES = "lock-task-features"; 247 248 private static final String TAG_STATUS_BAR = "statusbar"; 249 250 private static final String ATTR_DISABLED = "disabled"; 251 252 private static final String ATTR_NAME = "name"; 253 254 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 255 "do-not-ask-credentials-on-boot"; 256 257 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 258 259 private static final String TAG_LAST_SECURITY_LOG_RETRIEVAL = "last-security-log-retrieval"; 260 261 private static final String TAG_LAST_BUG_REPORT_REQUEST = "last-bug-report-request"; 262 263 private static final String TAG_LAST_NETWORK_LOG_RETRIEVAL = "last-network-log-retrieval"; 264 265 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 266 267 private static final String TAG_CURRENT_INPUT_METHOD_SET = "current-ime-set"; 268 269 private static final String TAG_OWNER_INSTALLED_CA_CERT = "owner-installed-ca-cert"; 270 271 private static final String ATTR_ID = "id"; 272 273 private static final String ATTR_VALUE = "value"; 274 275 private static final String ATTR_ALIAS = "alias"; 276 277 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 278 279 private static final String TAG_PASSWORD_TOKEN_HANDLE = "password-token"; 280 281 private static final String TAG_PASSWORD_VALIDITY = "password-validity"; 282 283 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 284 285 private static final long MS_PER_DAY = TimeUnit.DAYS.toMillis(1); 286 287 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 288 289 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 290 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 291 292 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 293 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 294 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 295 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 296 private static final String ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED = 297 "device-provisioning-config-applied"; 298 private static final String ATTR_DEVICE_PAIRED = "device-paired"; 299 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 300 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 301 = "application-restrictions-manager"; 302 303 private static final String MANAGED_PROVISIONING_PKG = "com.android.managedprovisioning"; 304 305 // Comprehensive list of delegations. 306 private static final String DELEGATIONS[] = { 307 DELEGATION_CERT_INSTALL, 308 DELEGATION_APP_RESTRICTIONS, 309 DELEGATION_BLOCK_UNINSTALL, 310 DELEGATION_ENABLE_SYSTEM_APP, 311 DELEGATION_KEEP_UNINSTALLED_PACKAGES, 312 DELEGATION_PACKAGE_ACCESS, 313 DELEGATION_PERMISSION_GRANT, 314 DELEGATION_INSTALL_EXISTING_PACKAGE, 315 DELEGATION_KEEP_UNINSTALLED_PACKAGES 316 }; 317 318 /** 319 * System property whose value is either "true" or "false", indicating whether 320 * device owner is present. 321 */ 322 private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner"; 323 324 private static final int STATUS_BAR_DISABLE_MASK = 325 StatusBarManager.DISABLE_EXPAND | 326 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 327 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 328 StatusBarManager.DISABLE_SEARCH; 329 330 private static final int STATUS_BAR_DISABLE2_MASK = 331 StatusBarManager.DISABLE2_QUICK_SETTINGS; 332 333 private static final Set<String> SECURE_SETTINGS_WHITELIST; 334 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 335 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 336 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 337 private static final Set<String> SYSTEM_SETTINGS_WHITELIST; 338 static { 339 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 340 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 341 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 342 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 343 344 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 345 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 346 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 347 348 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 349 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 350 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 351 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 352 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 353 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 354 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 355 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 356 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 357 358 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 359 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 360 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 361 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 362 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 363 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 364 365 SYSTEM_SETTINGS_WHITELIST = new ArraySet<>(); 366 SYSTEM_SETTINGS_WHITELIST.add(Settings.System.SCREEN_BRIGHTNESS); 367 SYSTEM_SETTINGS_WHITELIST.add(Settings.System.SCREEN_BRIGHTNESS_MODE); 368 SYSTEM_SETTINGS_WHITELIST.add(Settings.System.SCREEN_OFF_TIMEOUT); 369 } 370 371 /** 372 * Keyguard features that when set on a profile affect the profile content or challenge only. 373 * These cannot be set on the managed profile's parent DPM instance 374 */ 375 private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY = 376 DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 377 378 /** Keyguard features that are allowed to be set on a managed profile */ 379 private static final int PROFILE_KEYGUARD_FEATURES = 380 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY; 381 382 private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000; 383 384 /** 385 * Minimum timeout in milliseconds after which unlocking with weak auth times out, 386 * i.e. the user has to use a strong authentication method like password, PIN or pattern. 387 */ 388 private static final long MINIMUM_STRONG_AUTH_TIMEOUT_MS = TimeUnit.HOURS.toMillis(1); 389 390 /** 391 * Strings logged with {@link 392 * com.android.internal.logging.nano.MetricsProto.MetricsEvent#PROVISIONING_ENTRY_POINT_ADB}. 393 */ 394 private static final String LOG_TAG_PROFILE_OWNER = "profile-owner"; 395 private static final String LOG_TAG_DEVICE_OWNER = "device-owner"; 396 397 final Context mContext; 398 final Injector mInjector; 399 final IPackageManager mIPackageManager; 400 final UserManager mUserManager; 401 final UserManagerInternal mUserManagerInternal; 402 final TelephonyManager mTelephonyManager; 403 private final LockPatternUtils mLockPatternUtils; 404 private final DevicePolicyConstants mConstants; 405 private final DeviceAdminServiceController mDeviceAdminServiceController; 406 private final OverlayPackagesProvider mOverlayPackagesProvider; 407 408 /** 409 * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p 410 * is requested for user u. 411 */ 412 private final Set<Pair<String, Integer>> mPackagesToRemove = 413 new ArraySet<Pair<String, Integer>>(); 414 415 final LocalService mLocalService; 416 417 // Stores and loads state on device and profile owners. 418 @VisibleForTesting 419 final Owners mOwners; 420 421 private final Binder mToken = new Binder(); 422 423 /** 424 * Whether or not device admin feature is supported. If it isn't return defaults for all 425 * public methods. 426 */ 427 boolean mHasFeature; 428 429 /** 430 * Whether or not this device is a watch. 431 */ 432 boolean mIsWatch; 433 434 private final CertificateMonitor mCertificateMonitor; 435 private final SecurityLogMonitor mSecurityLogMonitor; 436 private NetworkLogger mNetworkLogger; 437 438 private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean(); 439 private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean(); 440 441 private SetupContentObserver mSetupContentObserver; 442 443 private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() { 444 @Override 445 public void run() { 446 if(mRemoteBugreportServiceIsActive.get()) { 447 onBugreportFailed(); 448 } 449 } 450 }; 451 452 /** Listens only if mHasFeature == true. */ 453 private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() { 454 455 @Override 456 public void onReceive(Context context, Intent intent) { 457 if (DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction()) 458 && mRemoteBugreportServiceIsActive.get()) { 459 onBugreportFinished(intent); 460 } 461 } 462 }; 463 464 /** Listens only if mHasFeature == true. */ 465 private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() { 466 467 @Override 468 public void onReceive(Context context, Intent intent) { 469 String action = intent.getAction(); 470 mInjector.getNotificationManager().cancel(LOG_TAG, 471 RemoteBugreportUtils.NOTIFICATION_ID); 472 if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED.equals(action)) { 473 onBugreportSharingAccepted(); 474 } else if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED.equals(action)) { 475 onBugreportSharingDeclined(); 476 } 477 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 478 } 479 }; 480 481 public static final class Lifecycle extends SystemService { 482 private BaseIDevicePolicyManager mService; 483 484 public Lifecycle(Context context) { 485 super(context); 486 String dpmsClassName = context.getResources() 487 .getString(R.string.config_deviceSpecificDevicePolicyManagerService); 488 if (TextUtils.isEmpty(dpmsClassName)) { 489 dpmsClassName = DevicePolicyManagerService.class.getName(); 490 } 491 try { 492 Class serviceClass = Class.forName(dpmsClassName); 493 Constructor constructor = serviceClass.getConstructor(Context.class); 494 mService = (BaseIDevicePolicyManager) constructor.newInstance(context); 495 } catch (Exception e) { 496 throw new IllegalStateException( 497 "Failed to instantiate DevicePolicyManagerService with class name: " 498 + dpmsClassName, e); 499 } 500 } 501 502 @Override 503 public void onStart() { 504 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 505 } 506 507 @Override 508 public void onBootPhase(int phase) { 509 mService.systemReady(phase); 510 } 511 512 @Override 513 public void onStartUser(int userHandle) { 514 mService.handleStartUser(userHandle); 515 } 516 517 @Override 518 public void onUnlockUser(int userHandle) { 519 mService.handleUnlockUser(userHandle); 520 } 521 522 @Override 523 public void onStopUser(int userHandle) { 524 mService.handleStopUser(userHandle); 525 } 526 } 527 528 public static class DevicePolicyData { 529 @NonNull PasswordMetrics mActivePasswordMetrics = new PasswordMetrics(); 530 int mFailedPasswordAttempts = 0; 531 boolean mPasswordStateHasBeenSetSinceBoot = false; 532 boolean mPasswordValidAtLastCheckpoint = false; 533 534 int mUserHandle; 535 int mPasswordOwner = -1; 536 long mLastMaximumTimeToLock = -1; 537 boolean mUserSetupComplete = false; 538 boolean mPaired = false; 539 int mUserProvisioningState; 540 int mPermissionPolicy; 541 542 boolean mDeviceProvisioningConfigApplied = false; 543 544 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 545 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 546 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 547 548 // TODO(b/35385311): Keep track of metadata in TrustedCertificateStore instead. 549 final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>(); 550 551 // This is the list of component allowed to start lock task mode. 552 List<String> mLockTaskPackages = new ArrayList<>(); 553 554 // Bitfield of feature flags to be enabled during LockTask mode. 555 int mLockTaskFeatures = DevicePolicyManager.LOCK_TASK_FEATURE_NONE; 556 557 boolean mStatusBarDisabled = false; 558 559 ComponentName mRestrictionsProvider; 560 561 // Map of delegate package to delegation scopes 562 final ArrayMap<String, List<String>> mDelegationMap = new ArrayMap<>(); 563 564 boolean doNotAskCredentialsOnBoot = false; 565 566 Set<String> mAffiliationIds = new ArraySet<>(); 567 568 long mLastSecurityLogRetrievalTime = -1; 569 570 long mLastBugReportRequestTime = -1; 571 572 long mLastNetworkLogsRetrievalTime = -1; 573 574 boolean mCurrentInputMethodSet = false; 575 576 // TODO(b/35385311): Keep track of metadata in TrustedCertificateStore instead. 577 Set<String> mOwnerInstalledCaCerts = new ArraySet<>(); 578 579 // Used for initialization of users created by createAndManageUser. 580 boolean mAdminBroadcastPending = false; 581 PersistableBundle mInitBundle = null; 582 583 long mPasswordTokenHandle = 0; 584 585 public DevicePolicyData(int userHandle) { 586 mUserHandle = userHandle; 587 } 588 } 589 590 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 591 592 final Handler mHandler; 593 final Handler mBackgroundHandler; 594 595 /** Listens only if mHasFeature == true. */ 596 final BroadcastReceiver mReceiver = new BroadcastReceiver() { 597 @Override 598 public void onReceive(Context context, Intent intent) { 599 final String action = intent.getAction(); 600 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 601 getSendingUserId()); 602 603 /* 604 * Network logging would ideally be started in setDeviceOwnerSystemPropertyLocked(), 605 * however it's too early in the boot process to register with IIpConnectivityMetrics 606 * to listen for events. 607 */ 608 if (Intent.ACTION_USER_STARTED.equals(action) 609 && userHandle == mOwners.getDeviceOwnerUserId()) { 610 synchronized (DevicePolicyManagerService.this) { 611 if (isNetworkLoggingEnabledInternalLocked()) { 612 setNetworkLoggingActiveInternal(true); 613 } 614 } 615 } 616 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 617 && userHandle == mOwners.getDeviceOwnerUserId() 618 && getDeviceOwnerRemoteBugreportUri() != null) { 619 IntentFilter filterConsent = new IntentFilter(); 620 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 621 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 622 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 623 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 624 RemoteBugreportUtils.NOTIFICATION_ID, 625 RemoteBugreportUtils.buildNotification(mContext, 626 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 627 UserHandle.ALL); 628 } 629 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 630 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 631 if (VERBOSE_LOG) { 632 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 633 + action + " for user " + userHandle); 634 } 635 mHandler.post(new Runnable() { 636 @Override 637 public void run() { 638 handlePasswordExpirationNotification(userHandle); 639 } 640 }); 641 } 642 643 if (Intent.ACTION_USER_ADDED.equals(action)) { 644 sendUserAddedOrRemovedCommand(DeviceAdminReceiver.ACTION_USER_ADDED, userHandle); 645 synchronized (DevicePolicyManagerService.this) { 646 // It might take a while for the user to become affiliated. Make security 647 // and network logging unavailable in the meantime. 648 maybePauseDeviceWideLoggingLocked(); 649 } 650 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 651 sendUserAddedOrRemovedCommand(DeviceAdminReceiver.ACTION_USER_REMOVED, userHandle); 652 synchronized (DevicePolicyManagerService.this) { 653 // Check whether the user is affiliated, *before* removing its data. 654 boolean isRemovedUserAffiliated = isUserAffiliatedWithDeviceLocked(userHandle); 655 removeUserData(userHandle); 656 if (!isRemovedUserAffiliated) { 657 // We discard the logs when unaffiliated users are deleted (so that the 658 // device owner cannot retrieve data about that user after it's gone). 659 discardDeviceWideLogsLocked(); 660 // Resume logging if all remaining users are affiliated. 661 maybeResumeDeviceWideLoggingLocked(); 662 } 663 } 664 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 665 synchronized (DevicePolicyManagerService.this) { 666 maybeSendAdminEnabledBroadcastLocked(userHandle); 667 // Reset the policy data 668 mUserData.remove(userHandle); 669 } 670 handlePackagesChanged(null /* check all admins */, userHandle); 671 } else if (Intent.ACTION_USER_UNLOCKED.equals(action)) { 672 synchronized (DevicePolicyManagerService.this) { 673 maybeSendAdminEnabledBroadcastLocked(userHandle); 674 } 675 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 676 handlePackagesChanged(null /* check all admins */, userHandle); 677 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 678 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 679 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 680 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 681 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 682 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 683 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 684 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 685 clearWipeProfileNotification(); 686 } 687 } 688 689 private void sendUserAddedOrRemovedCommand(String action, int userHandle) { 690 synchronized (DevicePolicyManagerService.this) { 691 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 692 if (deviceOwner != null) { 693 Bundle extras = new Bundle(); 694 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 695 sendAdminCommandLocked(deviceOwner, action, extras, null); 696 } 697 } 698 } 699 }; 700 701 static class ActiveAdmin { 702 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 703 private static final String TAG_TEST_ONLY_ADMIN = "test-only-admin"; 704 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 705 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 706 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 707 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 708 = "disable-bt-contacts-sharing"; 709 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 710 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 711 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 712 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 713 private static final String TAG_IS_NETWORK_LOGGING_ENABLED = "is_network_logging_enabled"; 714 private static final String TAG_ACCOUNT_TYPE = "account-type"; 715 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 716 = "permitted-accessiblity-services"; 717 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 718 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 719 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 720 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 721 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 722 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 723 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 724 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 725 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 726 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 727 private static final String TAG_PERMITTED_NOTIFICATION_LISTENERS = 728 "permitted-notification-listeners"; 729 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 730 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 731 private static final String TAG_STRONG_AUTH_UNLOCK_TIMEOUT = "strong-auth-unlock-timeout"; 732 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 733 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 734 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 735 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 736 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 737 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 738 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 739 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 740 private static final String ATTR_VALUE = "value"; 741 private static final String TAG_PASSWORD_BLACKLIST = "password-blacklist"; 742 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 743 private static final String TAG_POLICIES = "policies"; 744 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 745 "cross-profile-widget-providers"; 746 private static final String TAG_PROVIDER = "provider"; 747 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 748 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 749 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 750 private static final String TAG_DEFAULT_ENABLED_USER_RESTRICTIONS = 751 "default-enabled-user-restrictions"; 752 private static final String TAG_RESTRICTION = "restriction"; 753 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 754 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 755 private static final String TAG_PARENT_ADMIN = "parent-admin"; 756 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 757 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 758 private static final String ATTR_LAST_NETWORK_LOGGING_NOTIFICATION = "last-notification"; 759 private static final String ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS = "num-notifications"; 760 private static final String TAG_IS_LOGOUT_ENABLED = "is_logout_enabled"; 761 762 DeviceAdminInfo info; 763 764 765 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 766 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 767 768 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 769 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 770 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 771 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 772 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 773 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 774 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 775 @NonNull 776 PasswordMetrics minimumPasswordMetrics = new PasswordMetrics( 777 PASSWORD_QUALITY_UNSPECIFIED, DEF_MINIMUM_PASSWORD_LENGTH, 778 DEF_MINIMUM_PASSWORD_LETTERS, DEF_MINIMUM_PASSWORD_UPPER_CASE, 779 DEF_MINIMUM_PASSWORD_LOWER_CASE, DEF_MINIMUM_PASSWORD_NUMERIC, 780 DEF_MINIMUM_PASSWORD_SYMBOLS, DEF_MINIMUM_PASSWORD_NON_LETTER); 781 782 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 783 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 784 785 long strongAuthUnlockTimeout = 0; // admin doesn't participate by default 786 787 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 788 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 789 790 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 791 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 792 793 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 794 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 795 796 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 797 798 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 799 800 boolean encryptionRequested = false; 801 boolean testOnlyAdmin = false; 802 boolean disableCamera = false; 803 boolean disableCallerId = false; 804 boolean disableContactsSearch = false; 805 boolean disableBluetoothContactSharing = true; 806 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 807 boolean requireAutoTime = false; // Can only be set by a device owner. 808 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 809 boolean isNetworkLoggingEnabled = false; // Can only be set by a device owner. 810 boolean isLogoutEnabled = false; // Can only be set by a device owner. 811 812 // one notification after enabling + one more after reboots 813 static final int DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN = 2; 814 int numNetworkLoggingNotifications = 0; 815 long lastNetworkLoggingNotificationTimeMs = 0; // Time in milliseconds since epoch 816 817 ActiveAdmin parentAdmin; 818 final boolean isParent; 819 820 static class TrustAgentInfo { 821 public PersistableBundle options; 822 TrustAgentInfo(PersistableBundle bundle) { 823 options = bundle; 824 } 825 } 826 827 final Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 828 829 // The list of permitted accessibility services package namesas set by a profile 830 // or device owner. Null means all accessibility services are allowed, empty means 831 // none except system services are allowed. 832 List<String> permittedAccessiblityServices; 833 834 // The list of permitted input methods package names as set by a profile or device owner. 835 // Null means all input methods are allowed, empty means none except system imes are 836 // allowed. 837 List<String> permittedInputMethods; 838 839 // The list of packages allowed to use a NotificationListenerService to receive events for 840 // notifications from this user. Null means that all packages are allowed. Empty list means 841 // that only packages from the system are allowed. 842 List<String> permittedNotificationListeners; 843 844 // List of package names to keep cached. 845 List<String> keepUninstalledPackages; 846 847 // TODO: review implementation decisions with frameworks team 848 boolean specifiesGlobalProxy = false; 849 String globalProxySpec = null; 850 String globalProxyExclusionList = null; 851 852 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 853 854 List<String> crossProfileWidgetProviders; 855 856 Bundle userRestrictions; 857 858 // User restrictions that have already been enabled by default for this admin (either when 859 // setting the device or profile owner, or during a system update if one of those "enabled 860 // by default" restrictions is newly added). 861 final Set<String> defaultEnabledRestrictionsAlreadySet = new ArraySet<>(); 862 863 // Support text provided by the admin to display to the user. 864 CharSequence shortSupportMessage = null; 865 CharSequence longSupportMessage = null; 866 867 // Background color of confirm credentials screen. Default: teal. 868 static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B"); 869 int organizationColor = DEF_ORGANIZATION_COLOR; 870 871 // Default title of confirm credentials screen 872 String organizationName = null; 873 874 // The blacklist data is stored in a file whose name is stored in the XML 875 String passwordBlacklistFile = null; 876 877 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 878 info = _info; 879 isParent = parent; 880 } 881 882 ActiveAdmin getParentActiveAdmin() { 883 Preconditions.checkState(!isParent); 884 885 if (parentAdmin == null) { 886 parentAdmin = new ActiveAdmin(info, /* parent */ true); 887 } 888 return parentAdmin; 889 } 890 891 boolean hasParentActiveAdmin() { 892 return parentAdmin != null; 893 } 894 895 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 896 897 public UserHandle getUserHandle() { 898 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 899 } 900 901 void writeToXml(XmlSerializer out) 902 throws IllegalArgumentException, IllegalStateException, IOException { 903 out.startTag(null, TAG_POLICIES); 904 info.writePoliciesToXml(out); 905 out.endTag(null, TAG_POLICIES); 906 if (minimumPasswordMetrics.quality != PASSWORD_QUALITY_UNSPECIFIED) { 907 out.startTag(null, TAG_PASSWORD_QUALITY); 908 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.quality)); 909 out.endTag(null, TAG_PASSWORD_QUALITY); 910 if (minimumPasswordMetrics.length != DEF_MINIMUM_PASSWORD_LENGTH) { 911 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 912 out.attribute( 913 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.length)); 914 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 915 } 916 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 917 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 918 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 919 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 920 } 921 if (minimumPasswordMetrics.upperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 922 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 923 out.attribute( 924 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.upperCase)); 925 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 926 } 927 if (minimumPasswordMetrics.lowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 928 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 929 out.attribute( 930 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.lowerCase)); 931 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 932 } 933 if (minimumPasswordMetrics.letters != DEF_MINIMUM_PASSWORD_LETTERS) { 934 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 935 out.attribute( 936 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.letters)); 937 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 938 } 939 if (minimumPasswordMetrics.numeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 940 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 941 out.attribute( 942 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.numeric)); 943 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 944 } 945 if (minimumPasswordMetrics.symbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 946 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 947 out.attribute( 948 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.symbols)); 949 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 950 } 951 if (minimumPasswordMetrics.nonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 952 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 953 out.attribute( 954 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.nonLetter)); 955 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 956 } 957 } 958 if (passwordBlacklistFile != null) { 959 out.startTag(null, TAG_PASSWORD_BLACKLIST); 960 out.attribute(null, ATTR_VALUE, passwordBlacklistFile); 961 out.endTag(null, TAG_PASSWORD_BLACKLIST); 962 } 963 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 964 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 965 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 966 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 967 } 968 if (strongAuthUnlockTimeout != DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 969 out.startTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 970 out.attribute(null, ATTR_VALUE, Long.toString(strongAuthUnlockTimeout)); 971 out.endTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 972 } 973 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 974 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 975 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 976 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 977 } 978 if (specifiesGlobalProxy) { 979 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 980 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 981 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 982 if (globalProxySpec != null) { 983 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 984 out.attribute(null, ATTR_VALUE, globalProxySpec); 985 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 986 } 987 if (globalProxyExclusionList != null) { 988 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 989 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 990 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 991 } 992 } 993 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 994 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 995 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 996 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 997 } 998 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 999 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 1000 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 1001 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 1002 } 1003 if (encryptionRequested) { 1004 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 1005 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 1006 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 1007 } 1008 if (testOnlyAdmin) { 1009 out.startTag(null, TAG_TEST_ONLY_ADMIN); 1010 out.attribute(null, ATTR_VALUE, Boolean.toString(testOnlyAdmin)); 1011 out.endTag(null, TAG_TEST_ONLY_ADMIN); 1012 } 1013 if (disableCamera) { 1014 out.startTag(null, TAG_DISABLE_CAMERA); 1015 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 1016 out.endTag(null, TAG_DISABLE_CAMERA); 1017 } 1018 if (disableCallerId) { 1019 out.startTag(null, TAG_DISABLE_CALLER_ID); 1020 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 1021 out.endTag(null, TAG_DISABLE_CALLER_ID); 1022 } 1023 if (disableContactsSearch) { 1024 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 1025 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 1026 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 1027 } 1028 if (!disableBluetoothContactSharing) { 1029 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 1030 out.attribute(null, ATTR_VALUE, 1031 Boolean.toString(disableBluetoothContactSharing)); 1032 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 1033 } 1034 if (disableScreenCapture) { 1035 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 1036 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 1037 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 1038 } 1039 if (requireAutoTime) { 1040 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 1041 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 1042 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 1043 } 1044 if (forceEphemeralUsers) { 1045 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 1046 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 1047 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 1048 } 1049 if (isNetworkLoggingEnabled) { 1050 out.startTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 1051 out.attribute(null, ATTR_VALUE, Boolean.toString(isNetworkLoggingEnabled)); 1052 out.attribute(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS, 1053 Integer.toString(numNetworkLoggingNotifications)); 1054 out.attribute(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION, 1055 Long.toString(lastNetworkLoggingNotificationTimeMs)); 1056 out.endTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 1057 } 1058 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 1059 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 1060 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 1061 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 1062 } 1063 if (!accountTypesWithManagementDisabled.isEmpty()) { 1064 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 1065 writeAttributeValuesToXml( 1066 out, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1067 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 1068 } 1069 if (!trustAgentInfos.isEmpty()) { 1070 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 1071 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1072 for (Entry<String, TrustAgentInfo> entry : set) { 1073 TrustAgentInfo trustAgentInfo = entry.getValue(); 1074 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 1075 out.attribute(null, ATTR_VALUE, entry.getKey()); 1076 if (trustAgentInfo.options != null) { 1077 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1078 try { 1079 trustAgentInfo.options.saveToXml(out); 1080 } catch (XmlPullParserException e) { 1081 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 1082 } 1083 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1084 } 1085 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 1086 } 1087 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1088 } 1089 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 1090 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1091 writeAttributeValuesToXml(out, TAG_PROVIDER, crossProfileWidgetProviders); 1092 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1093 } 1094 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 1095 permittedAccessiblityServices); 1096 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 1097 writePackageListToXml(out, TAG_PERMITTED_NOTIFICATION_LISTENERS, 1098 permittedNotificationListeners); 1099 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 1100 if (hasUserRestrictions()) { 1101 UserRestrictionsUtils.writeRestrictions( 1102 out, userRestrictions, TAG_USER_RESTRICTIONS); 1103 } 1104 if (!defaultEnabledRestrictionsAlreadySet.isEmpty()) { 1105 out.startTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1106 writeAttributeValuesToXml( 1107 out, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1108 out.endTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1109 } 1110 if (!TextUtils.isEmpty(shortSupportMessage)) { 1111 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1112 out.text(shortSupportMessage.toString()); 1113 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1114 } 1115 if (!TextUtils.isEmpty(longSupportMessage)) { 1116 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 1117 out.text(longSupportMessage.toString()); 1118 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 1119 } 1120 if (parentAdmin != null) { 1121 out.startTag(null, TAG_PARENT_ADMIN); 1122 parentAdmin.writeToXml(out); 1123 out.endTag(null, TAG_PARENT_ADMIN); 1124 } 1125 if (organizationColor != DEF_ORGANIZATION_COLOR) { 1126 out.startTag(null, TAG_ORGANIZATION_COLOR); 1127 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 1128 out.endTag(null, TAG_ORGANIZATION_COLOR); 1129 } 1130 if (organizationName != null) { 1131 out.startTag(null, TAG_ORGANIZATION_NAME); 1132 out.text(organizationName); 1133 out.endTag(null, TAG_ORGANIZATION_NAME); 1134 } 1135 if (isLogoutEnabled) { 1136 out.startTag(null, TAG_IS_LOGOUT_ENABLED); 1137 out.attribute(null, ATTR_VALUE, Boolean.toString(isLogoutEnabled)); 1138 out.endTag(null, TAG_IS_LOGOUT_ENABLED); 1139 } 1140 } 1141 1142 void writePackageListToXml(XmlSerializer out, String outerTag, 1143 List<String> packageList) 1144 throws IllegalArgumentException, IllegalStateException, IOException { 1145 if (packageList == null) { 1146 return; 1147 } 1148 1149 out.startTag(null, outerTag); 1150 writeAttributeValuesToXml(out, TAG_PACKAGE_LIST_ITEM, packageList); 1151 out.endTag(null, outerTag); 1152 } 1153 1154 void writeAttributeValuesToXml(XmlSerializer out, String tag, 1155 @NonNull Collection<String> values) throws IOException { 1156 for (String value : values) { 1157 out.startTag(null, tag); 1158 out.attribute(null, ATTR_VALUE, value); 1159 out.endTag(null, tag); 1160 } 1161 } 1162 1163 void readFromXml(XmlPullParser parser) 1164 throws XmlPullParserException, IOException { 1165 int outerDepth = parser.getDepth(); 1166 int type; 1167 while ((type=parser.next()) != END_DOCUMENT 1168 && (type != END_TAG || parser.getDepth() > outerDepth)) { 1169 if (type == END_TAG || type == TEXT) { 1170 continue; 1171 } 1172 String tag = parser.getName(); 1173 if (TAG_POLICIES.equals(tag)) { 1174 info.readPoliciesFromXml(parser); 1175 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 1176 minimumPasswordMetrics.quality = Integer.parseInt( 1177 parser.getAttributeValue(null, ATTR_VALUE)); 1178 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 1179 minimumPasswordMetrics.length = Integer.parseInt( 1180 parser.getAttributeValue(null, ATTR_VALUE)); 1181 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 1182 passwordHistoryLength = Integer.parseInt( 1183 parser.getAttributeValue(null, ATTR_VALUE)); 1184 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 1185 minimumPasswordMetrics.upperCase = Integer.parseInt( 1186 parser.getAttributeValue(null, ATTR_VALUE)); 1187 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 1188 minimumPasswordMetrics.lowerCase = Integer.parseInt( 1189 parser.getAttributeValue(null, ATTR_VALUE)); 1190 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 1191 minimumPasswordMetrics.letters = Integer.parseInt( 1192 parser.getAttributeValue(null, ATTR_VALUE)); 1193 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 1194 minimumPasswordMetrics.numeric = Integer.parseInt( 1195 parser.getAttributeValue(null, ATTR_VALUE)); 1196 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 1197 minimumPasswordMetrics.symbols = Integer.parseInt( 1198 parser.getAttributeValue(null, ATTR_VALUE)); 1199 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 1200 minimumPasswordMetrics.nonLetter = Integer.parseInt( 1201 parser.getAttributeValue(null, ATTR_VALUE)); 1202 } else if (TAG_PASSWORD_BLACKLIST.equals(tag)) { 1203 passwordBlacklistFile = parser.getAttributeValue(null, ATTR_VALUE); 1204 }else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 1205 maximumTimeToUnlock = Long.parseLong( 1206 parser.getAttributeValue(null, ATTR_VALUE)); 1207 } else if (TAG_STRONG_AUTH_UNLOCK_TIMEOUT.equals(tag)) { 1208 strongAuthUnlockTimeout = Long.parseLong( 1209 parser.getAttributeValue(null, ATTR_VALUE)); 1210 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 1211 maximumFailedPasswordsForWipe = Integer.parseInt( 1212 parser.getAttributeValue(null, ATTR_VALUE)); 1213 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 1214 specifiesGlobalProxy = Boolean.parseBoolean( 1215 parser.getAttributeValue(null, ATTR_VALUE)); 1216 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 1217 globalProxySpec = 1218 parser.getAttributeValue(null, ATTR_VALUE); 1219 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 1220 globalProxyExclusionList = 1221 parser.getAttributeValue(null, ATTR_VALUE); 1222 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 1223 passwordExpirationTimeout = Long.parseLong( 1224 parser.getAttributeValue(null, ATTR_VALUE)); 1225 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 1226 passwordExpirationDate = Long.parseLong( 1227 parser.getAttributeValue(null, ATTR_VALUE)); 1228 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 1229 encryptionRequested = Boolean.parseBoolean( 1230 parser.getAttributeValue(null, ATTR_VALUE)); 1231 } else if (TAG_TEST_ONLY_ADMIN.equals(tag)) { 1232 testOnlyAdmin = Boolean.parseBoolean( 1233 parser.getAttributeValue(null, ATTR_VALUE)); 1234 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 1235 disableCamera = Boolean.parseBoolean( 1236 parser.getAttributeValue(null, ATTR_VALUE)); 1237 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 1238 disableCallerId = Boolean.parseBoolean( 1239 parser.getAttributeValue(null, ATTR_VALUE)); 1240 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 1241 disableContactsSearch = Boolean.parseBoolean( 1242 parser.getAttributeValue(null, ATTR_VALUE)); 1243 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 1244 disableBluetoothContactSharing = Boolean.parseBoolean(parser 1245 .getAttributeValue(null, ATTR_VALUE)); 1246 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 1247 disableScreenCapture = Boolean.parseBoolean( 1248 parser.getAttributeValue(null, ATTR_VALUE)); 1249 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 1250 requireAutoTime = Boolean.parseBoolean( 1251 parser.getAttributeValue(null, ATTR_VALUE)); 1252 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 1253 forceEphemeralUsers = Boolean.parseBoolean( 1254 parser.getAttributeValue(null, ATTR_VALUE)); 1255 } else if (TAG_IS_NETWORK_LOGGING_ENABLED.equals(tag)) { 1256 isNetworkLoggingEnabled = Boolean.parseBoolean( 1257 parser.getAttributeValue(null, ATTR_VALUE)); 1258 lastNetworkLoggingNotificationTimeMs = Long.parseLong( 1259 parser.getAttributeValue(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION)); 1260 numNetworkLoggingNotifications = Integer.parseInt( 1261 parser.getAttributeValue(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS)); 1262 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 1263 disabledKeyguardFeatures = Integer.parseInt( 1264 parser.getAttributeValue(null, ATTR_VALUE)); 1265 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 1266 readAttributeValues( 1267 parser, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1268 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 1269 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 1270 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 1271 crossProfileWidgetProviders = new ArrayList<>(); 1272 readAttributeValues(parser, TAG_PROVIDER, crossProfileWidgetProviders); 1273 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 1274 permittedAccessiblityServices = readPackageList(parser, tag); 1275 } else if (TAG_PERMITTED_IMES.equals(tag)) { 1276 permittedInputMethods = readPackageList(parser, tag); 1277 } else if (TAG_PERMITTED_NOTIFICATION_LISTENERS.equals(tag)) { 1278 permittedNotificationListeners = readPackageList(parser, tag); 1279 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 1280 keepUninstalledPackages = readPackageList(parser, tag); 1281 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 1282 userRestrictions = UserRestrictionsUtils.readRestrictions(parser); 1283 } else if (TAG_DEFAULT_ENABLED_USER_RESTRICTIONS.equals(tag)) { 1284 readAttributeValues( 1285 parser, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1286 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 1287 type = parser.next(); 1288 if (type == XmlPullParser.TEXT) { 1289 shortSupportMessage = parser.getText(); 1290 } else { 1291 Log.w(LOG_TAG, "Missing text when loading short support message"); 1292 } 1293 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 1294 type = parser.next(); 1295 if (type == XmlPullParser.TEXT) { 1296 longSupportMessage = parser.getText(); 1297 } else { 1298 Log.w(LOG_TAG, "Missing text when loading long support message"); 1299 } 1300 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1301 Preconditions.checkState(!isParent); 1302 1303 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1304 parentAdmin.readFromXml(parser); 1305 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1306 organizationColor = Integer.parseInt( 1307 parser.getAttributeValue(null, ATTR_VALUE)); 1308 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1309 type = parser.next(); 1310 if (type == XmlPullParser.TEXT) { 1311 organizationName = parser.getText(); 1312 } else { 1313 Log.w(LOG_TAG, "Missing text when loading organization name"); 1314 } 1315 } else if (TAG_IS_LOGOUT_ENABLED.equals(tag)) { 1316 isLogoutEnabled = Boolean.parseBoolean( 1317 parser.getAttributeValue(null, ATTR_VALUE)); 1318 } else { 1319 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1320 XmlUtils.skipCurrentTag(parser); 1321 } 1322 } 1323 } 1324 1325 private List<String> readPackageList(XmlPullParser parser, 1326 String tag) throws XmlPullParserException, IOException { 1327 List<String> result = new ArrayList<String>(); 1328 int outerDepth = parser.getDepth(); 1329 int outerType; 1330 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1331 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1332 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1333 continue; 1334 } 1335 String outerTag = parser.getName(); 1336 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1337 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1338 if (packageName != null) { 1339 result.add(packageName); 1340 } else { 1341 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1342 } 1343 } else { 1344 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1345 } 1346 } 1347 return result; 1348 } 1349 1350 private void readAttributeValues( 1351 XmlPullParser parser, String tag, Collection<String> result) 1352 throws XmlPullParserException, IOException { 1353 result.clear(); 1354 int outerDepthDAM = parser.getDepth(); 1355 int typeDAM; 1356 while ((typeDAM=parser.next()) != END_DOCUMENT 1357 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1358 if (typeDAM == END_TAG || typeDAM == TEXT) { 1359 continue; 1360 } 1361 String tagDAM = parser.getName(); 1362 if (tag.equals(tagDAM)) { 1363 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1364 } else { 1365 Slog.e(LOG_TAG, "Expected tag " + tag + " but found " + tagDAM); 1366 } 1367 } 1368 } 1369 1370 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1371 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1372 int outerDepthDAM = parser.getDepth(); 1373 int typeDAM; 1374 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1375 while ((typeDAM=parser.next()) != END_DOCUMENT 1376 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1377 if (typeDAM == END_TAG || typeDAM == TEXT) { 1378 continue; 1379 } 1380 String tagDAM = parser.getName(); 1381 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1382 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1383 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1384 result.put(component, trustAgentInfo); 1385 } else { 1386 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1387 } 1388 } 1389 return result; 1390 } 1391 1392 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1393 throws XmlPullParserException, IOException { 1394 int outerDepthDAM = parser.getDepth(); 1395 int typeDAM; 1396 TrustAgentInfo result = new TrustAgentInfo(null); 1397 while ((typeDAM=parser.next()) != END_DOCUMENT 1398 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1399 if (typeDAM == END_TAG || typeDAM == TEXT) { 1400 continue; 1401 } 1402 String tagDAM = parser.getName(); 1403 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 1404 result.options = PersistableBundle.restoreFromXml(parser); 1405 } else { 1406 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1407 } 1408 } 1409 return result; 1410 } 1411 1412 boolean hasUserRestrictions() { 1413 return userRestrictions != null && userRestrictions.size() > 0; 1414 } 1415 1416 Bundle ensureUserRestrictions() { 1417 if (userRestrictions == null) { 1418 userRestrictions = new Bundle(); 1419 } 1420 return userRestrictions; 1421 } 1422 1423 public void transfer(DeviceAdminInfo deviceAdminInfo) { 1424 if (hasParentActiveAdmin()) { 1425 parentAdmin.info = deviceAdminInfo; 1426 } 1427 info = deviceAdminInfo; 1428 } 1429 1430 void dump(String prefix, PrintWriter pw) { 1431 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1432 pw.print(prefix); pw.print("testOnlyAdmin="); 1433 pw.println(testOnlyAdmin); 1434 pw.print(prefix); pw.println("policies:"); 1435 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1436 if (pols != null) { 1437 for (int i=0; i<pols.size(); i++) { 1438 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1439 } 1440 } 1441 pw.print(prefix); pw.print("passwordQuality=0x"); 1442 pw.println(Integer.toHexString(minimumPasswordMetrics.quality)); 1443 pw.print(prefix); pw.print("minimumPasswordLength="); 1444 pw.println(minimumPasswordMetrics.length); 1445 pw.print(prefix); pw.print("passwordHistoryLength="); 1446 pw.println(passwordHistoryLength); 1447 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1448 pw.println(minimumPasswordMetrics.upperCase); 1449 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1450 pw.println(minimumPasswordMetrics.lowerCase); 1451 pw.print(prefix); pw.print("minimumPasswordLetters="); 1452 pw.println(minimumPasswordMetrics.letters); 1453 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1454 pw.println(minimumPasswordMetrics.numeric); 1455 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1456 pw.println(minimumPasswordMetrics.symbols); 1457 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1458 pw.println(minimumPasswordMetrics.nonLetter); 1459 pw.print(prefix); pw.print("passwordBlacklist="); 1460 pw.println(passwordBlacklistFile != null); 1461 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1462 pw.println(maximumTimeToUnlock); 1463 pw.print(prefix); pw.print("strongAuthUnlockTimeout="); 1464 pw.println(strongAuthUnlockTimeout); 1465 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1466 pw.println(maximumFailedPasswordsForWipe); 1467 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1468 pw.println(specifiesGlobalProxy); 1469 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1470 pw.println(passwordExpirationTimeout); 1471 pw.print(prefix); pw.print("passwordExpirationDate="); 1472 pw.println(passwordExpirationDate); 1473 if (globalProxySpec != null) { 1474 pw.print(prefix); pw.print("globalProxySpec="); 1475 pw.println(globalProxySpec); 1476 } 1477 if (globalProxyExclusionList != null) { 1478 pw.print(prefix); pw.print("globalProxyEclusionList="); 1479 pw.println(globalProxyExclusionList); 1480 } 1481 pw.print(prefix); pw.print("encryptionRequested="); 1482 pw.println(encryptionRequested); 1483 pw.print(prefix); pw.print("disableCamera="); 1484 pw.println(disableCamera); 1485 pw.print(prefix); pw.print("disableCallerId="); 1486 pw.println(disableCallerId); 1487 pw.print(prefix); pw.print("disableContactsSearch="); 1488 pw.println(disableContactsSearch); 1489 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1490 pw.println(disableBluetoothContactSharing); 1491 pw.print(prefix); pw.print("disableScreenCapture="); 1492 pw.println(disableScreenCapture); 1493 pw.print(prefix); pw.print("requireAutoTime="); 1494 pw.println(requireAutoTime); 1495 pw.print(prefix); pw.print("forceEphemeralUsers="); 1496 pw.println(forceEphemeralUsers); 1497 pw.print(prefix); pw.print("isNetworkLoggingEnabled="); 1498 pw.println(isNetworkLoggingEnabled); 1499 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1500 pw.println(disabledKeyguardFeatures); 1501 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1502 pw.println(crossProfileWidgetProviders); 1503 if (permittedAccessiblityServices != null) { 1504 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1505 pw.println(permittedAccessiblityServices); 1506 } 1507 if (permittedInputMethods != null) { 1508 pw.print(prefix); pw.print("permittedInputMethods="); 1509 pw.println(permittedInputMethods); 1510 } 1511 if (permittedNotificationListeners != null) { 1512 pw.print(prefix); pw.print("permittedNotificationListeners="); 1513 pw.println(permittedNotificationListeners); 1514 } 1515 if (keepUninstalledPackages != null) { 1516 pw.print(prefix); pw.print("keepUninstalledPackages="); 1517 pw.println(keepUninstalledPackages); 1518 } 1519 pw.print(prefix); pw.print("organizationColor="); 1520 pw.println(organizationColor); 1521 if (organizationName != null) { 1522 pw.print(prefix); pw.print("organizationName="); 1523 pw.println(organizationName); 1524 } 1525 pw.print(prefix); pw.println("userRestrictions:"); 1526 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1527 pw.print(prefix); pw.print("defaultEnabledRestrictionsAlreadySet="); 1528 pw.println(defaultEnabledRestrictionsAlreadySet); 1529 pw.print(prefix); pw.print("isParent="); 1530 pw.println(isParent); 1531 if (parentAdmin != null) { 1532 pw.print(prefix); pw.println("parentAdmin:"); 1533 parentAdmin.dump(prefix + " ", pw); 1534 } 1535 } 1536 } 1537 1538 private void handlePackagesChanged(@Nullable String packageName, int userHandle) { 1539 boolean removedAdmin = false; 1540 if (VERBOSE_LOG) { 1541 Slog.d(LOG_TAG, "Handling package changes package " + packageName 1542 + " for user " + userHandle); 1543 } 1544 DevicePolicyData policy = getUserData(userHandle); 1545 synchronized (this) { 1546 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1547 ActiveAdmin aa = policy.mAdminList.get(i); 1548 try { 1549 // If we're checking all packages or if the specific one we're checking matches, 1550 // then check if the package and receiver still exist. 1551 final String adminPackage = aa.info.getPackageName(); 1552 if (packageName == null || packageName.equals(adminPackage)) { 1553 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1554 || mIPackageManager.getReceiverInfo(aa.info.getComponent(), 1555 PackageManager.MATCH_DIRECT_BOOT_AWARE 1556 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 1557 userHandle) == null) { 1558 removedAdmin = true; 1559 policy.mAdminList.remove(i); 1560 policy.mAdminMap.remove(aa.info.getComponent()); 1561 } 1562 } 1563 } catch (RemoteException re) { 1564 // Shouldn't happen. 1565 } 1566 } 1567 if (removedAdmin) { 1568 validatePasswordOwnerLocked(policy); 1569 } 1570 1571 boolean removedDelegate = false; 1572 1573 // Check if a delegate was removed. 1574 for (int i = policy.mDelegationMap.size() - 1; i >= 0; i--) { 1575 final String delegatePackage = policy.mDelegationMap.keyAt(i); 1576 if (isRemovedPackage(packageName, delegatePackage, userHandle)) { 1577 policy.mDelegationMap.removeAt(i); 1578 removedDelegate = true; 1579 } 1580 } 1581 1582 // If it's an owner package, we may need to refresh the bound connection. 1583 final ComponentName owner = getOwnerComponent(userHandle); 1584 if ((packageName != null) && (owner != null) 1585 && (owner.getPackageName().equals(packageName))) { 1586 startOwnerService(userHandle, "package-broadcast"); 1587 } 1588 1589 // Persist updates if the removed package was an admin or delegate. 1590 if (removedAdmin || removedDelegate) { 1591 saveSettingsLocked(policy.mUserHandle); 1592 } 1593 } 1594 if (removedAdmin) { 1595 // The removed admin might have disabled camera, so update user restrictions. 1596 pushUserRestrictions(userHandle); 1597 } 1598 } 1599 1600 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1601 try { 1602 return targetPackage != null 1603 && (changedPackage == null || changedPackage.equals(targetPackage)) 1604 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1605 } catch (RemoteException e) { 1606 // Shouldn't happen 1607 } 1608 1609 return false; 1610 } 1611 1612 /** 1613 * Unit test will subclass it to inject mocks. 1614 */ 1615 @VisibleForTesting 1616 static class Injector { 1617 1618 public final Context mContext; 1619 1620 Injector(Context context) { 1621 mContext = context; 1622 } 1623 1624 public boolean hasFeature() { 1625 return getPackageManager().hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1626 } 1627 1628 Context createContextAsUser(UserHandle user) throws PackageManager.NameNotFoundException { 1629 final String packageName = mContext.getPackageName(); 1630 return mContext.createPackageContextAsUser(packageName, 0, user); 1631 } 1632 1633 Resources getResources() { 1634 return mContext.getResources(); 1635 } 1636 1637 Owners newOwners() { 1638 return new Owners(getUserManager(), getUserManagerInternal(), 1639 getPackageManagerInternal()); 1640 } 1641 1642 UserManager getUserManager() { 1643 return UserManager.get(mContext); 1644 } 1645 1646 UserManagerInternal getUserManagerInternal() { 1647 return LocalServices.getService(UserManagerInternal.class); 1648 } 1649 1650 PackageManagerInternal getPackageManagerInternal() { 1651 return LocalServices.getService(PackageManagerInternal.class); 1652 } 1653 1654 NotificationManager getNotificationManager() { 1655 return mContext.getSystemService(NotificationManager.class); 1656 } 1657 1658 IIpConnectivityMetrics getIIpConnectivityMetrics() { 1659 return (IIpConnectivityMetrics) IIpConnectivityMetrics.Stub.asInterface( 1660 ServiceManager.getService(IpConnectivityLog.SERVICE_NAME)); 1661 } 1662 1663 PackageManager getPackageManager() { 1664 return mContext.getPackageManager(); 1665 } 1666 1667 PowerManagerInternal getPowerManagerInternal() { 1668 return LocalServices.getService(PowerManagerInternal.class); 1669 } 1670 1671 TelephonyManager getTelephonyManager() { 1672 return TelephonyManager.from(mContext); 1673 } 1674 1675 TrustManager getTrustManager() { 1676 return (TrustManager) mContext.getSystemService(Context.TRUST_SERVICE); 1677 } 1678 1679 AlarmManager getAlarmManager() { 1680 return (AlarmManager) mContext.getSystemService(AlarmManager.class); 1681 } 1682 1683 IWindowManager getIWindowManager() { 1684 return IWindowManager.Stub 1685 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1686 } 1687 1688 IActivityManager getIActivityManager() { 1689 return ActivityManager.getService(); 1690 } 1691 1692 IPackageManager getIPackageManager() { 1693 return AppGlobals.getPackageManager(); 1694 } 1695 1696 IBackupManager getIBackupManager() { 1697 return IBackupManager.Stub.asInterface( 1698 ServiceManager.getService(Context.BACKUP_SERVICE)); 1699 } 1700 1701 IAudioService getIAudioService() { 1702 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1703 } 1704 1705 boolean isBuildDebuggable() { 1706 return Build.IS_DEBUGGABLE; 1707 } 1708 1709 LockPatternUtils newLockPatternUtils() { 1710 return new LockPatternUtils(mContext); 1711 } 1712 1713 PasswordBlacklist newPasswordBlacklist(File file) { 1714 return new PasswordBlacklist(file); 1715 } 1716 1717 boolean storageManagerIsFileBasedEncryptionEnabled() { 1718 return StorageManager.isFileEncryptedNativeOnly(); 1719 } 1720 1721 boolean storageManagerIsNonDefaultBlockEncrypted() { 1722 long identity = Binder.clearCallingIdentity(); 1723 try { 1724 return StorageManager.isNonDefaultBlockEncrypted(); 1725 } finally { 1726 Binder.restoreCallingIdentity(identity); 1727 } 1728 } 1729 1730 boolean storageManagerIsEncrypted() { 1731 return StorageManager.isEncrypted(); 1732 } 1733 1734 boolean storageManagerIsEncryptable() { 1735 return StorageManager.isEncryptable(); 1736 } 1737 1738 Looper getMyLooper() { 1739 return Looper.myLooper(); 1740 } 1741 1742 WifiManager getWifiManager() { 1743 return mContext.getSystemService(WifiManager.class); 1744 } 1745 1746 long binderClearCallingIdentity() { 1747 return Binder.clearCallingIdentity(); 1748 } 1749 1750 void binderRestoreCallingIdentity(long token) { 1751 Binder.restoreCallingIdentity(token); 1752 } 1753 1754 int binderGetCallingUid() { 1755 return Binder.getCallingUid(); 1756 } 1757 1758 int binderGetCallingPid() { 1759 return Binder.getCallingPid(); 1760 } 1761 1762 UserHandle binderGetCallingUserHandle() { 1763 return Binder.getCallingUserHandle(); 1764 } 1765 1766 boolean binderIsCallingUidMyUid() { 1767 return getCallingUid() == Process.myUid(); 1768 } 1769 1770 void binderWithCleanCallingIdentity(@NonNull ThrowingRunnable action) { 1771 Binder.withCleanCallingIdentity(action); 1772 } 1773 1774 final int userHandleGetCallingUserId() { 1775 return UserHandle.getUserId(binderGetCallingUid()); 1776 } 1777 1778 File environmentGetUserSystemDirectory(int userId) { 1779 return Environment.getUserSystemDirectory(userId); 1780 } 1781 1782 void powerManagerGoToSleep(long time, int reason, int flags) { 1783 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1784 } 1785 1786 void powerManagerReboot(String reason) { 1787 mContext.getSystemService(PowerManager.class).reboot(reason); 1788 } 1789 1790 void recoverySystemRebootWipeUserData(boolean shutdown, String reason, boolean force, 1791 boolean wipeEuicc) throws IOException { 1792 RecoverySystem.rebootWipeUserData(mContext, shutdown, reason, force, wipeEuicc); 1793 } 1794 1795 boolean systemPropertiesGetBoolean(String key, boolean def) { 1796 return SystemProperties.getBoolean(key, def); 1797 } 1798 1799 long systemPropertiesGetLong(String key, long def) { 1800 return SystemProperties.getLong(key, def); 1801 } 1802 1803 String systemPropertiesGet(String key, String def) { 1804 return SystemProperties.get(key, def); 1805 } 1806 1807 String systemPropertiesGet(String key) { 1808 return SystemProperties.get(key); 1809 } 1810 1811 void systemPropertiesSet(String key, String value) { 1812 SystemProperties.set(key, value); 1813 } 1814 1815 boolean userManagerIsSplitSystemUser() { 1816 return UserManager.isSplitSystemUser(); 1817 } 1818 1819 String getDevicePolicyFilePathForSystemUser() { 1820 return "/data/system/"; 1821 } 1822 1823 PendingIntent pendingIntentGetActivityAsUser(Context context, int requestCode, 1824 @NonNull Intent intent, int flags, Bundle options, UserHandle user) { 1825 return PendingIntent.getActivityAsUser( 1826 context, requestCode, intent, flags, options, user); 1827 } 1828 1829 void registerContentObserver(Uri uri, boolean notifyForDescendents, 1830 ContentObserver observer, int userHandle) { 1831 mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents, 1832 observer, userHandle); 1833 } 1834 1835 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1836 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1837 name, def, userHandle); 1838 } 1839 1840 String settingsSecureGetStringForUser(String name, int userHandle) { 1841 return Settings.Secure.getStringForUser(mContext.getContentResolver(), name, 1842 userHandle); 1843 } 1844 1845 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1846 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1847 name, value, userHandle); 1848 } 1849 1850 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1851 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1852 name, value, userHandle); 1853 } 1854 1855 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1856 Settings.Global.putStringForUser(mContext.getContentResolver(), 1857 name, value, userHandle); 1858 } 1859 1860 void settingsSecurePutInt(String name, int value) { 1861 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1862 } 1863 1864 int settingsGlobalGetInt(String name, int def) { 1865 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1866 } 1867 1868 String settingsGlobalGetString(String name) { 1869 return Settings.Global.getString(mContext.getContentResolver(), name); 1870 } 1871 1872 void settingsGlobalPutInt(String name, int value) { 1873 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1874 } 1875 1876 void settingsSecurePutString(String name, String value) { 1877 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1878 } 1879 1880 void settingsGlobalPutString(String name, String value) { 1881 Settings.Global.putString(mContext.getContentResolver(), name, value); 1882 } 1883 1884 void settingsSystemPutString(String name, String value) { 1885 Settings.System.putString(mContext.getContentResolver(), name, value); 1886 } 1887 1888 void securityLogSetLoggingEnabledProperty(boolean enabled) { 1889 SecurityLog.setLoggingEnabledProperty(enabled); 1890 } 1891 1892 boolean securityLogGetLoggingEnabledProperty() { 1893 return SecurityLog.getLoggingEnabledProperty(); 1894 } 1895 1896 boolean securityLogIsLoggingEnabled() { 1897 return SecurityLog.isLoggingEnabled(); 1898 } 1899 1900 KeyChainConnection keyChainBindAsUser(UserHandle user) throws InterruptedException { 1901 return KeyChain.bindAsUser(mContext, user); 1902 } 1903 } 1904 1905 /** 1906 * Instantiates the service. 1907 */ 1908 public DevicePolicyManagerService(Context context) { 1909 this(new Injector(context)); 1910 } 1911 1912 @VisibleForTesting 1913 DevicePolicyManagerService(Injector injector) { 1914 mInjector = injector; 1915 mContext = Preconditions.checkNotNull(injector.mContext); 1916 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1917 mConstants = DevicePolicyConstants.loadFromString( 1918 mInjector.settingsGlobalGetString(Global.DEVICE_POLICY_CONSTANTS)); 1919 1920 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1921 1922 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1923 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1924 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1925 mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager()); 1926 1927 mLocalService = new LocalService(); 1928 mLockPatternUtils = injector.newLockPatternUtils(); 1929 1930 // TODO: why does SecurityLogMonitor need to be created even when mHasFeature == false? 1931 mSecurityLogMonitor = new SecurityLogMonitor(this); 1932 1933 mHasFeature = mInjector.hasFeature(); 1934 mIsWatch = mInjector.getPackageManager() 1935 .hasSystemFeature(PackageManager.FEATURE_WATCH); 1936 mBackgroundHandler = BackgroundThread.getHandler(); 1937 1938 // Needed when mHasFeature == false, because it controls the certificate warning text. 1939 mCertificateMonitor = new CertificateMonitor(this, mInjector, mBackgroundHandler); 1940 1941 mDeviceAdminServiceController = new DeviceAdminServiceController(this, mConstants); 1942 1943 mOverlayPackagesProvider = new OverlayPackagesProvider(mContext); 1944 1945 if (!mHasFeature) { 1946 // Skip the rest of the initialization 1947 return; 1948 } 1949 1950 IntentFilter filter = new IntentFilter(); 1951 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1952 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1953 filter.addAction(Intent.ACTION_USER_ADDED); 1954 filter.addAction(Intent.ACTION_USER_REMOVED); 1955 filter.addAction(Intent.ACTION_USER_STARTED); 1956 filter.addAction(Intent.ACTION_USER_UNLOCKED); 1957 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1958 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1959 filter = new IntentFilter(); 1960 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1961 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1962 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1963 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1964 filter.addDataScheme("package"); 1965 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1966 filter = new IntentFilter(); 1967 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1968 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1969 1970 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1971 1972 mSetupContentObserver = new SetupContentObserver(mHandler); 1973 } 1974 1975 /** 1976 * Creates and loads the policy data from xml. 1977 * @param userHandle the user for whom to load the policy data 1978 * @return 1979 */ 1980 @NonNull 1981 DevicePolicyData getUserData(int userHandle) { 1982 synchronized (this) { 1983 DevicePolicyData policy = mUserData.get(userHandle); 1984 if (policy == null) { 1985 policy = new DevicePolicyData(userHandle); 1986 mUserData.append(userHandle, policy); 1987 loadSettingsLocked(policy, userHandle); 1988 } 1989 return policy; 1990 } 1991 } 1992 1993 /** 1994 * Creates and loads the policy data from xml for data that is shared between 1995 * various profiles of a user. In contrast to {@link #getUserData(int)} 1996 * it allows access to data of users other than the calling user. 1997 * 1998 * This function should only be used for shared data, e.g. everything regarding 1999 * passwords and should be removed once multiple screen locks are present. 2000 * @param userHandle the user for whom to load the policy data 2001 * @return 2002 */ 2003 DevicePolicyData getUserDataUnchecked(int userHandle) { 2004 long ident = mInjector.binderClearCallingIdentity(); 2005 try { 2006 return getUserData(userHandle); 2007 } finally { 2008 mInjector.binderRestoreCallingIdentity(ident); 2009 } 2010 } 2011 2012 void removeUserData(int userHandle) { 2013 synchronized (this) { 2014 if (userHandle == UserHandle.USER_SYSTEM) { 2015 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 2016 return; 2017 } 2018 mOwners.removeProfileOwner(userHandle); 2019 mOwners.writeProfileOwner(userHandle); 2020 2021 DevicePolicyData policy = mUserData.get(userHandle); 2022 if (policy != null) { 2023 mUserData.remove(userHandle); 2024 } 2025 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2026 DEVICE_POLICIES_XML); 2027 policyFile.delete(); 2028 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 2029 } 2030 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 2031 } 2032 2033 void loadOwners() { 2034 synchronized (this) { 2035 mOwners.load(); 2036 setDeviceOwnerSystemPropertyLocked(); 2037 findOwnerComponentIfNecessaryLocked(); 2038 migrateUserRestrictionsIfNecessaryLocked(); 2039 maybeSetDefaultDeviceOwnerUserRestrictionsLocked(); 2040 2041 // TODO PO may not have a class name either due to b/17652534. Address that too. 2042 2043 updateDeviceOwnerLocked(); 2044 } 2045 } 2046 2047 /** Apply default restrictions that haven't been applied to device owners yet. */ 2048 private void maybeSetDefaultDeviceOwnerUserRestrictionsLocked() { 2049 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 2050 if (deviceOwner != null) { 2051 maybeSetDefaultRestrictionsForAdminLocked(mOwners.getDeviceOwnerUserId(), 2052 deviceOwner, UserRestrictionsUtils.getDefaultEnabledForDeviceOwner()); 2053 } 2054 } 2055 2056 /** Apply default restrictions that haven't been applied to profile owners yet. */ 2057 private void maybeSetDefaultProfileOwnerUserRestrictions() { 2058 synchronized (this) { 2059 for (final int userId : mOwners.getProfileOwnerKeys()) { 2060 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 2061 // The following restrictions used to be applied to managed profiles by different 2062 // means (via Settings or by disabling components). Now they are proper user 2063 // restrictions so we apply them to managed profile owners. Non-managed secondary 2064 // users didn't have those restrictions so we skip them to keep existing behavior. 2065 if (profileOwner == null || !mUserManager.isManagedProfile(userId)) { 2066 continue; 2067 } 2068 maybeSetDefaultRestrictionsForAdminLocked(userId, profileOwner, 2069 UserRestrictionsUtils.getDefaultEnabledForManagedProfiles()); 2070 ensureUnknownSourcesRestrictionForProfileOwnerLocked( 2071 userId, profileOwner, false /* newOwner */); 2072 } 2073 } 2074 } 2075 2076 /** 2077 * Checks whether {@link UserManager#DISALLOW_INSTALL_UNKNOWN_SOURCES} should be added to the 2078 * set of restrictions for this profile owner. 2079 */ 2080 private void ensureUnknownSourcesRestrictionForProfileOwnerLocked(int userId, 2081 ActiveAdmin profileOwner, boolean newOwner) { 2082 if (newOwner || mInjector.settingsSecureGetIntForUser( 2083 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId) != 0) { 2084 profileOwner.ensureUserRestrictions().putBoolean( 2085 UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 2086 saveUserRestrictionsLocked(userId); 2087 mInjector.settingsSecurePutIntForUser( 2088 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId); 2089 } 2090 } 2091 2092 /** 2093 * Apply default restrictions that haven't been applied to a given admin yet. 2094 */ 2095 private void maybeSetDefaultRestrictionsForAdminLocked( 2096 int userId, ActiveAdmin admin, Set<String> defaultRestrictions) { 2097 if (defaultRestrictions.equals(admin.defaultEnabledRestrictionsAlreadySet)) { 2098 return; // The same set of default restrictions has been already applied. 2099 } 2100 Slog.i(LOG_TAG, "New user restrictions need to be set by default for user " + userId); 2101 2102 if (VERBOSE_LOG) { 2103 Slog.d(LOG_TAG,"Default enabled restrictions: " 2104 + defaultRestrictions 2105 + ". Restrictions already enabled: " 2106 + admin.defaultEnabledRestrictionsAlreadySet); 2107 } 2108 2109 final Set<String> restrictionsToSet = new ArraySet<>(defaultRestrictions); 2110 restrictionsToSet.removeAll(admin.defaultEnabledRestrictionsAlreadySet); 2111 if (!restrictionsToSet.isEmpty()) { 2112 for (final String restriction : restrictionsToSet) { 2113 admin.ensureUserRestrictions().putBoolean(restriction, true); 2114 } 2115 admin.defaultEnabledRestrictionsAlreadySet.addAll(restrictionsToSet); 2116 Slog.i(LOG_TAG, "Enabled the following restrictions by default: " + restrictionsToSet); 2117 saveUserRestrictionsLocked(userId); 2118 } 2119 } 2120 2121 private void setDeviceOwnerSystemPropertyLocked() { 2122 final boolean deviceProvisioned = 2123 mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0; 2124 final boolean hasDeviceOwner = mOwners.hasDeviceOwner(); 2125 // If the device is not provisioned and there is currently no device owner, do not set the 2126 // read-only system property yet, since Device owner may still be provisioned. 2127 if (!hasDeviceOwner && !deviceProvisioned) { 2128 return; 2129 } 2130 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 2131 // always false at this point. 2132 if (StorageManager.inCryptKeeperBounce()) { 2133 return; 2134 } 2135 2136 if (!mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT, "").isEmpty()) { 2137 Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 2138 } else { 2139 final String value = Boolean.toString(hasDeviceOwner); 2140 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, value); 2141 Slog.i(LOG_TAG, "Set ro.device_owner property to " + value); 2142 2143 if (hasDeviceOwner && mInjector.securityLogGetLoggingEnabledProperty()) { 2144 mSecurityLogMonitor.start(); 2145 maybePauseDeviceWideLoggingLocked(); 2146 } 2147 } 2148 } 2149 2150 private void findOwnerComponentIfNecessaryLocked() { 2151 if (!mOwners.hasDeviceOwner()) { 2152 return; 2153 } 2154 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 2155 2156 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 2157 return; // Already a full component name. 2158 } 2159 2160 final ComponentName doComponent = findAdminComponentWithPackageLocked( 2161 doComponentName.getPackageName(), 2162 mOwners.getDeviceOwnerUserId()); 2163 if (doComponent == null) { 2164 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 2165 } else { 2166 mOwners.setDeviceOwnerWithRestrictionsMigrated( 2167 doComponent, 2168 mOwners.getDeviceOwnerName(), 2169 mOwners.getDeviceOwnerUserId(), 2170 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 2171 mOwners.writeDeviceOwner(); 2172 if (VERBOSE_LOG) { 2173 Log.v(LOG_TAG, "Device owner component filled in"); 2174 } 2175 } 2176 } 2177 2178 /** 2179 * We didn't use to persist user restrictions for each owners but only persisted in user 2180 * manager. 2181 */ 2182 private void migrateUserRestrictionsIfNecessaryLocked() { 2183 boolean migrated = false; 2184 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 2185 // except for the "system controlled" ones. 2186 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 2187 if (VERBOSE_LOG) { 2188 Log.v(LOG_TAG, "Migrating DO user restrictions"); 2189 } 2190 migrated = true; 2191 2192 // Migrate user 0 restrictions to DO. 2193 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 2194 2195 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 2196 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 2197 2198 // Push DO user restrictions to user manager. 2199 pushUserRestrictions(UserHandle.USER_SYSTEM); 2200 2201 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 2202 } 2203 2204 // Migrate for POs. 2205 2206 // The following restrictions can be set on secondary users by the device owner, so we 2207 // assume they're not from the PO. 2208 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 2209 UserManager.DISALLOW_OUTGOING_CALLS, 2210 UserManager.DISALLOW_SMS); 2211 2212 for (UserInfo ui : mUserManager.getUsers()) { 2213 final int userId = ui.id; 2214 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 2215 if (VERBOSE_LOG) { 2216 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 2217 } 2218 migrated = true; 2219 2220 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 2221 2222 final Set<String> exceptionList = 2223 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 2224 2225 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 2226 exceptionList, /* isDeviceOwner =*/ false); 2227 2228 // Note if a secondary user has no PO but has a DA that disables camera, we 2229 // don't get here and won't push the camera user restriction to UserManager 2230 // here. That's okay because we'll push user restrictions anyway when a user 2231 // starts. But we still do it because we want to let user manager persist 2232 // upon migration. 2233 pushUserRestrictions(userId); 2234 2235 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 2236 } 2237 } 2238 if (VERBOSE_LOG && migrated) { 2239 Log.v(LOG_TAG, "User restrictions migrated."); 2240 } 2241 } 2242 2243 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 2244 Set<String> exceptionList, boolean isDeviceOwner) { 2245 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 2246 user.getIdentifier()); 2247 2248 final Bundle newBaseRestrictions = new Bundle(); 2249 final Bundle newOwnerRestrictions = new Bundle(); 2250 2251 for (String key : origRestrictions.keySet()) { 2252 if (!origRestrictions.getBoolean(key)) { 2253 continue; 2254 } 2255 final boolean canOwnerChange = isDeviceOwner 2256 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 2257 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 2258 2259 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 2260 newBaseRestrictions.putBoolean(key, true); 2261 } else { 2262 newOwnerRestrictions.putBoolean(key, true); 2263 } 2264 } 2265 2266 if (VERBOSE_LOG) { 2267 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 2268 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 2269 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 2270 } 2271 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 2272 newBaseRestrictions); 2273 2274 if (admin != null) { 2275 admin.ensureUserRestrictions().clear(); 2276 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 2277 } else { 2278 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 2279 } 2280 saveSettingsLocked(user.getIdentifier()); 2281 } 2282 2283 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 2284 final DevicePolicyData policy = getUserData(userId); 2285 final int n = policy.mAdminList.size(); 2286 ComponentName found = null; 2287 int nFound = 0; 2288 for (int i = 0; i < n; i++) { 2289 final ActiveAdmin admin = policy.mAdminList.get(i); 2290 if (packageName.equals(admin.info.getPackageName())) { 2291 // Found! 2292 if (nFound == 0) { 2293 found = admin.info.getComponent(); 2294 } 2295 nFound++; 2296 } 2297 } 2298 if (nFound > 1) { 2299 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 2300 } 2301 return found; 2302 } 2303 2304 /** 2305 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 2306 * reminders. Clears alarm if no expirations are configured. 2307 */ 2308 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 2309 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 2310 final long now = System.currentTimeMillis(); 2311 final long timeToExpire = expiration - now; 2312 final long alarmTime; 2313 if (expiration == 0) { 2314 // No expirations are currently configured: Cancel alarm. 2315 alarmTime = 0; 2316 } else if (timeToExpire <= 0) { 2317 // The password has already expired: Repeat every 24 hours. 2318 alarmTime = now + MS_PER_DAY; 2319 } else { 2320 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 2321 // the expiration time. 2322 long alarmInterval = timeToExpire % MS_PER_DAY; 2323 if (alarmInterval == 0) { 2324 alarmInterval = MS_PER_DAY; 2325 } 2326 alarmTime = now + alarmInterval; 2327 } 2328 2329 long token = mInjector.binderClearCallingIdentity(); 2330 try { 2331 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 2332 AlarmManager am = mInjector.getAlarmManager(); 2333 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 2334 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 2335 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 2336 UserHandle.of(affectedUserHandle)); 2337 am.cancel(pi); 2338 if (alarmTime != 0) { 2339 am.set(AlarmManager.RTC, alarmTime, pi); 2340 } 2341 } finally { 2342 mInjector.binderRestoreCallingIdentity(token); 2343 } 2344 } 2345 2346 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 2347 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 2348 if (admin != null 2349 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 2350 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 2351 return admin; 2352 } 2353 return null; 2354 } 2355 2356 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 2357 if (parent) { 2358 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 2359 } 2360 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2361 if (admin != null && parent) { 2362 admin = admin.getParentActiveAdmin(); 2363 } 2364 return admin; 2365 } 2366 2367 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 2368 throws SecurityException { 2369 final int callingUid = mInjector.binderGetCallingUid(); 2370 2371 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 2372 if (result != null) { 2373 return result; 2374 } 2375 2376 if (who != null) { 2377 final int userId = UserHandle.getUserId(callingUid); 2378 final DevicePolicyData policy = getUserData(userId); 2379 ActiveAdmin admin = policy.mAdminMap.get(who); 2380 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2381 throw new SecurityException("Admin " + admin.info.getComponent() 2382 + " does not own the device"); 2383 } 2384 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2385 throw new SecurityException("Admin " + admin.info.getComponent() 2386 + " does not own the profile"); 2387 } 2388 throw new SecurityException("Admin " + admin.info.getComponent() 2389 + " did not specify uses-policy for: " 2390 + admin.info.getTagForPolicy(reqPolicy)); 2391 } else { 2392 throw new SecurityException("No active admin owned by uid " 2393 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 2394 } 2395 } 2396 2397 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 2398 throws SecurityException { 2399 if (parent) { 2400 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 2401 "call APIs on the parent profile"); 2402 } 2403 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 2404 return parent ? admin.getParentActiveAdmin() : admin; 2405 } 2406 /** 2407 * Find the admin for the component and userId bit of the uid, then check 2408 * the admin's uid matches the uid. 2409 */ 2410 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 2411 final int userId = UserHandle.getUserId(uid); 2412 final DevicePolicyData policy = getUserData(userId); 2413 ActiveAdmin admin = policy.mAdminMap.get(who); 2414 if (admin == null) { 2415 throw new SecurityException("No active admin " + who); 2416 } 2417 if (admin.getUid() != uid) { 2418 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2419 } 2420 return admin; 2421 } 2422 2423 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 2424 int uid) { 2425 // Try to find an admin which can use reqPolicy 2426 final int userId = UserHandle.getUserId(uid); 2427 final DevicePolicyData policy = getUserData(userId); 2428 if (who != null) { 2429 ActiveAdmin admin = policy.mAdminMap.get(who); 2430 if (admin == null) { 2431 throw new SecurityException("No active admin " + who); 2432 } 2433 if (admin.getUid() != uid) { 2434 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2435 } 2436 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 2437 return admin; 2438 } 2439 } else { 2440 for (ActiveAdmin admin : policy.mAdminList) { 2441 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 2442 userId)) { 2443 return admin; 2444 } 2445 } 2446 } 2447 2448 return null; 2449 } 2450 2451 @VisibleForTesting 2452 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 2453 int userId) { 2454 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 2455 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 2456 2457 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2458 return ownsDevice; 2459 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2460 // DO always has the PO power. 2461 return ownsDevice || ownsProfile; 2462 } else { 2463 return admin.info.usesPolicy(reqPolicy); 2464 } 2465 } 2466 2467 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 2468 sendAdminCommandLocked(admin, action, null); 2469 } 2470 2471 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 2472 sendAdminCommandLocked(admin, action, null, result); 2473 } 2474 2475 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2476 BroadcastReceiver result) { 2477 sendAdminCommandLocked(admin, action, adminExtras, result, false); 2478 } 2479 2480 /** 2481 * Send an update to one specific admin, get notified when that admin returns a result. 2482 * 2483 * @return whether the broadcast was successfully sent 2484 */ 2485 boolean sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2486 BroadcastReceiver result, boolean inForeground) { 2487 Intent intent = new Intent(action); 2488 intent.setComponent(admin.info.getComponent()); 2489 if (UserManager.isDeviceInDemoMode(mContext)) { 2490 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 2491 } 2492 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 2493 intent.putExtra("expiration", admin.passwordExpirationDate); 2494 } 2495 if (inForeground) { 2496 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 2497 } 2498 if (adminExtras != null) { 2499 intent.putExtras(adminExtras); 2500 } 2501 if (mInjector.getPackageManager().queryBroadcastReceiversAsUser( 2502 intent, 2503 PackageManager.MATCH_DEBUG_TRIAGED_MISSING, 2504 admin.getUserHandle()).isEmpty()) { 2505 return false; 2506 } 2507 if (result != null) { 2508 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 2509 null, result, mHandler, Activity.RESULT_OK, null, null); 2510 } else { 2511 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 2512 } 2513 return true; 2514 } 2515 2516 /** 2517 * Send an update to all admins of a user that enforce a specified policy. 2518 */ 2519 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle, Bundle adminExtras) { 2520 final DevicePolicyData policy = getUserData(userHandle); 2521 final int count = policy.mAdminList.size(); 2522 for (int i = 0; i < count; i++) { 2523 final ActiveAdmin admin = policy.mAdminList.get(i); 2524 if (admin.info.usesPolicy(reqPolicy)) { 2525 sendAdminCommandLocked(admin, action, adminExtras, null); 2526 } 2527 } 2528 } 2529 2530 /** 2531 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2532 * enforce a specified policy. 2533 */ 2534 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2535 int userHandle, Bundle adminExtras) { 2536 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 2537 for (int profileId : profileIds) { 2538 sendAdminCommandLocked(action, reqPolicy, profileId, adminExtras); 2539 } 2540 } 2541 2542 /** 2543 * Sends a broadcast to each profile that share the password unlock with the given user id. 2544 */ 2545 private void sendAdminCommandForLockscreenPoliciesLocked( 2546 String action, int reqPolicy, int userHandle) { 2547 final Bundle extras = new Bundle(); 2548 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 2549 if (isSeparateProfileChallengeEnabled(userHandle)) { 2550 sendAdminCommandLocked(action, reqPolicy, userHandle, extras); 2551 } else { 2552 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle, extras); 2553 } 2554 } 2555 2556 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2557 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2558 DevicePolicyData policy = getUserData(userHandle); 2559 if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) { 2560 policy.mRemovingAdmins.add(adminReceiver); 2561 sendAdminCommandLocked(admin, 2562 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2563 new BroadcastReceiver() { 2564 @Override 2565 public void onReceive(Context context, Intent intent) { 2566 removeAdminArtifacts(adminReceiver, userHandle); 2567 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2568 } 2569 }); 2570 } 2571 } 2572 2573 2574 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2575 boolean throwForMissingPermission) { 2576 if (!mHasFeature) { 2577 return null; 2578 } 2579 enforceFullCrossUsersPermission(userHandle); 2580 ActivityInfo ai = null; 2581 try { 2582 ai = mIPackageManager.getReceiverInfo(adminName, 2583 PackageManager.GET_META_DATA | 2584 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS | 2585 PackageManager.MATCH_DIRECT_BOOT_AWARE | 2586 PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle); 2587 } catch (RemoteException e) { 2588 // shouldn't happen. 2589 } 2590 if (ai == null) { 2591 throw new IllegalArgumentException("Unknown admin: " + adminName); 2592 } 2593 2594 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2595 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2596 + permission.BIND_DEVICE_ADMIN; 2597 Slog.w(LOG_TAG, message); 2598 if (throwForMissingPermission && 2599 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2600 throw new IllegalArgumentException(message); 2601 } 2602 } 2603 2604 try { 2605 return new DeviceAdminInfo(mContext, ai); 2606 } catch (XmlPullParserException | IOException e) { 2607 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2608 e); 2609 return null; 2610 } 2611 } 2612 2613 private File getPolicyFileDirectory(@UserIdInt int userId) { 2614 return userId == UserHandle.USER_SYSTEM 2615 ? new File(mInjector.getDevicePolicyFilePathForSystemUser()) 2616 : mInjector.environmentGetUserSystemDirectory(userId); 2617 } 2618 2619 private JournaledFile makeJournaledFile(@UserIdInt int userId) { 2620 final String base = new File(getPolicyFileDirectory(userId), DEVICE_POLICIES_XML) 2621 .getAbsolutePath(); 2622 if (VERBOSE_LOG) { 2623 Log.v(LOG_TAG, "Opening " + base); 2624 } 2625 return new JournaledFile(new File(base), new File(base + ".tmp")); 2626 } 2627 2628 private void saveSettingsLocked(int userHandle) { 2629 DevicePolicyData policy = getUserData(userHandle); 2630 JournaledFile journal = makeJournaledFile(userHandle); 2631 FileOutputStream stream = null; 2632 try { 2633 stream = new FileOutputStream(journal.chooseForWrite(), false); 2634 XmlSerializer out = new FastXmlSerializer(); 2635 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2636 out.startDocument(null, true); 2637 2638 out.startTag(null, "policies"); 2639 if (policy.mRestrictionsProvider != null) { 2640 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2641 policy.mRestrictionsProvider.flattenToString()); 2642 } 2643 if (policy.mUserSetupComplete) { 2644 out.attribute(null, ATTR_SETUP_COMPLETE, 2645 Boolean.toString(true)); 2646 } 2647 if (policy.mPaired) { 2648 out.attribute(null, ATTR_DEVICE_PAIRED, 2649 Boolean.toString(true)); 2650 } 2651 if (policy.mDeviceProvisioningConfigApplied) { 2652 out.attribute(null, ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED, 2653 Boolean.toString(true)); 2654 } 2655 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2656 out.attribute(null, ATTR_PROVISIONING_STATE, 2657 Integer.toString(policy.mUserProvisioningState)); 2658 } 2659 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2660 out.attribute(null, ATTR_PERMISSION_POLICY, 2661 Integer.toString(policy.mPermissionPolicy)); 2662 } 2663 2664 // Serialize delegations. 2665 for (int i = 0; i < policy.mDelegationMap.size(); ++i) { 2666 final String delegatePackage = policy.mDelegationMap.keyAt(i); 2667 final List<String> scopes = policy.mDelegationMap.valueAt(i); 2668 2669 // Every "delegation" tag serializes the information of one delegate-scope pair. 2670 for (String scope : scopes) { 2671 out.startTag(null, "delegation"); 2672 out.attribute(null, "delegatePackage", delegatePackage); 2673 out.attribute(null, "scope", scope); 2674 out.endTag(null, "delegation"); 2675 } 2676 } 2677 2678 final int N = policy.mAdminList.size(); 2679 for (int i=0; i<N; i++) { 2680 ActiveAdmin ap = policy.mAdminList.get(i); 2681 if (ap != null) { 2682 out.startTag(null, "admin"); 2683 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2684 ap.writeToXml(out); 2685 out.endTag(null, "admin"); 2686 } 2687 } 2688 2689 if (policy.mPasswordOwner >= 0) { 2690 out.startTag(null, "password-owner"); 2691 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2692 out.endTag(null, "password-owner"); 2693 } 2694 2695 if (policy.mFailedPasswordAttempts != 0) { 2696 out.startTag(null, "failed-password-attempts"); 2697 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2698 out.endTag(null, "failed-password-attempts"); 2699 } 2700 2701 // For FDE devices only, we save this flag so we can report on password sufficiency 2702 // before the user enters their password for the first time after a reboot. For 2703 // security reasons, we don't want to store the full set of active password metrics. 2704 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 2705 out.startTag(null, TAG_PASSWORD_VALIDITY); 2706 out.attribute(null, ATTR_VALUE, 2707 Boolean.toString(policy.mPasswordValidAtLastCheckpoint)); 2708 out.endTag(null, TAG_PASSWORD_VALIDITY); 2709 } 2710 2711 for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) { 2712 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2713 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i)); 2714 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2715 } 2716 2717 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2718 String component = policy.mLockTaskPackages.get(i); 2719 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2720 out.attribute(null, "name", component); 2721 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2722 } 2723 2724 if (policy.mLockTaskFeatures != DevicePolicyManager.LOCK_TASK_FEATURE_NONE) { 2725 out.startTag(null, TAG_LOCK_TASK_FEATURES); 2726 out.attribute(null, ATTR_VALUE, Integer.toString(policy.mLockTaskFeatures)); 2727 out.endTag(null, TAG_LOCK_TASK_FEATURES); 2728 } 2729 2730 if (policy.mStatusBarDisabled) { 2731 out.startTag(null, TAG_STATUS_BAR); 2732 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2733 out.endTag(null, TAG_STATUS_BAR); 2734 } 2735 2736 if (policy.doNotAskCredentialsOnBoot) { 2737 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2738 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2739 } 2740 2741 for (String id : policy.mAffiliationIds) { 2742 out.startTag(null, TAG_AFFILIATION_ID); 2743 out.attribute(null, ATTR_ID, id); 2744 out.endTag(null, TAG_AFFILIATION_ID); 2745 } 2746 2747 if (policy.mLastSecurityLogRetrievalTime >= 0) { 2748 out.startTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2749 out.attribute(null, ATTR_VALUE, 2750 Long.toString(policy.mLastSecurityLogRetrievalTime)); 2751 out.endTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2752 } 2753 2754 if (policy.mLastBugReportRequestTime >= 0) { 2755 out.startTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2756 out.attribute(null, ATTR_VALUE, 2757 Long.toString(policy.mLastBugReportRequestTime)); 2758 out.endTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2759 } 2760 2761 if (policy.mLastNetworkLogsRetrievalTime >= 0) { 2762 out.startTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2763 out.attribute(null, ATTR_VALUE, 2764 Long.toString(policy.mLastNetworkLogsRetrievalTime)); 2765 out.endTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2766 } 2767 2768 if (policy.mAdminBroadcastPending) { 2769 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2770 out.attribute(null, ATTR_VALUE, 2771 Boolean.toString(policy.mAdminBroadcastPending)); 2772 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2773 } 2774 2775 if (policy.mInitBundle != null) { 2776 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 2777 policy.mInitBundle.saveToXml(out); 2778 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 2779 } 2780 2781 if (policy.mPasswordTokenHandle != 0) { 2782 out.startTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2783 out.attribute(null, ATTR_VALUE, 2784 Long.toString(policy.mPasswordTokenHandle)); 2785 out.endTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2786 } 2787 2788 if (policy.mCurrentInputMethodSet) { 2789 out.startTag(null, TAG_CURRENT_INPUT_METHOD_SET); 2790 out.endTag(null, TAG_CURRENT_INPUT_METHOD_SET); 2791 } 2792 2793 for (final String cert : policy.mOwnerInstalledCaCerts) { 2794 out.startTag(null, TAG_OWNER_INSTALLED_CA_CERT); 2795 out.attribute(null, ATTR_ALIAS, cert); 2796 out.endTag(null, TAG_OWNER_INSTALLED_CA_CERT); 2797 } 2798 2799 out.endTag(null, "policies"); 2800 2801 out.endDocument(); 2802 stream.flush(); 2803 FileUtils.sync(stream); 2804 stream.close(); 2805 journal.commit(); 2806 sendChangedNotification(userHandle); 2807 } catch (XmlPullParserException | IOException e) { 2808 Slog.w(LOG_TAG, "failed writing file", e); 2809 try { 2810 if (stream != null) { 2811 stream.close(); 2812 } 2813 } catch (IOException ex) { 2814 // Ignore 2815 } 2816 journal.rollback(); 2817 } 2818 } 2819 2820 private void sendChangedNotification(int userHandle) { 2821 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 2822 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2823 long ident = mInjector.binderClearCallingIdentity(); 2824 try { 2825 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 2826 } finally { 2827 mInjector.binderRestoreCallingIdentity(ident); 2828 } 2829 } 2830 2831 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 2832 JournaledFile journal = makeJournaledFile(userHandle); 2833 FileInputStream stream = null; 2834 File file = journal.chooseForRead(); 2835 boolean needsRewrite = false; 2836 try { 2837 stream = new FileInputStream(file); 2838 XmlPullParser parser = Xml.newPullParser(); 2839 parser.setInput(stream, StandardCharsets.UTF_8.name()); 2840 2841 int type; 2842 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2843 && type != XmlPullParser.START_TAG) { 2844 } 2845 String tag = parser.getName(); 2846 if (!"policies".equals(tag)) { 2847 throw new XmlPullParserException( 2848 "Settings do not start with policies tag: found " + tag); 2849 } 2850 2851 // Extract the permission provider component name if available 2852 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 2853 if (permissionProvider != null) { 2854 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 2855 } 2856 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 2857 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 2858 policy.mUserSetupComplete = true; 2859 } 2860 String paired = parser.getAttributeValue(null, ATTR_DEVICE_PAIRED); 2861 if (paired != null && Boolean.toString(true).equals(paired)) { 2862 policy.mPaired = true; 2863 } 2864 String deviceProvisioningConfigApplied = parser.getAttributeValue(null, 2865 ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED); 2866 if (deviceProvisioningConfigApplied != null 2867 && Boolean.toString(true).equals(deviceProvisioningConfigApplied)) { 2868 policy.mDeviceProvisioningConfigApplied = true; 2869 } 2870 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 2871 if (!TextUtils.isEmpty(provisioningState)) { 2872 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 2873 } 2874 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 2875 if (!TextUtils.isEmpty(permissionPolicy)) { 2876 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 2877 } 2878 // Check for delegation compatibility with pre-O. 2879 // TODO(edmanp) remove in P. 2880 { 2881 final String certDelegate = parser.getAttributeValue(null, 2882 ATTR_DELEGATED_CERT_INSTALLER); 2883 if (certDelegate != null) { 2884 List<String> scopes = policy.mDelegationMap.get(certDelegate); 2885 if (scopes == null) { 2886 scopes = new ArrayList<>(); 2887 policy.mDelegationMap.put(certDelegate, scopes); 2888 } 2889 if (!scopes.contains(DELEGATION_CERT_INSTALL)) { 2890 scopes.add(DELEGATION_CERT_INSTALL); 2891 needsRewrite = true; 2892 } 2893 } 2894 final String appRestrictionsDelegate = parser.getAttributeValue(null, 2895 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 2896 if (appRestrictionsDelegate != null) { 2897 List<String> scopes = policy.mDelegationMap.get(appRestrictionsDelegate); 2898 if (scopes == null) { 2899 scopes = new ArrayList<>(); 2900 policy.mDelegationMap.put(appRestrictionsDelegate, scopes); 2901 } 2902 if (!scopes.contains(DELEGATION_APP_RESTRICTIONS)) { 2903 scopes.add(DELEGATION_APP_RESTRICTIONS); 2904 needsRewrite = true; 2905 } 2906 } 2907 } 2908 2909 type = parser.next(); 2910 int outerDepth = parser.getDepth(); 2911 policy.mLockTaskPackages.clear(); 2912 policy.mAdminList.clear(); 2913 policy.mAdminMap.clear(); 2914 policy.mAffiliationIds.clear(); 2915 policy.mOwnerInstalledCaCerts.clear(); 2916 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2917 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2918 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2919 continue; 2920 } 2921 tag = parser.getName(); 2922 if ("admin".equals(tag)) { 2923 String name = parser.getAttributeValue(null, "name"); 2924 try { 2925 DeviceAdminInfo dai = findAdmin( 2926 ComponentName.unflattenFromString(name), userHandle, 2927 /* throwForMissingPermission= */ false); 2928 if (VERBOSE_LOG 2929 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 2930 != userHandle)) { 2931 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 2932 + dai.getActivityInfo().applicationInfo.uid + " for user " 2933 + userHandle); 2934 } 2935 if (dai != null) { 2936 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 2937 ap.readFromXml(parser); 2938 policy.mAdminMap.put(ap.info.getComponent(), ap); 2939 } 2940 } catch (RuntimeException e) { 2941 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 2942 } 2943 } else if ("delegation".equals(tag)) { 2944 // Parse delegation info. 2945 final String delegatePackage = parser.getAttributeValue(null, 2946 "delegatePackage"); 2947 final String scope = parser.getAttributeValue(null, "scope"); 2948 2949 // Get a reference to the scopes list for the delegatePackage. 2950 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 2951 // Or make a new list if none was found. 2952 if (scopes == null) { 2953 scopes = new ArrayList<>(); 2954 policy.mDelegationMap.put(delegatePackage, scopes); 2955 } 2956 // Add the new scope to the list of delegatePackage if it's not already there. 2957 if (!scopes.contains(scope)) { 2958 scopes.add(scope); 2959 } 2960 } else if ("failed-password-attempts".equals(tag)) { 2961 policy.mFailedPasswordAttempts = Integer.parseInt( 2962 parser.getAttributeValue(null, "value")); 2963 } else if ("password-owner".equals(tag)) { 2964 policy.mPasswordOwner = Integer.parseInt( 2965 parser.getAttributeValue(null, "value")); 2966 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) { 2967 policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME)); 2968 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2969 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2970 } else if (TAG_LOCK_TASK_FEATURES.equals(tag)) { 2971 policy.mLockTaskFeatures = Integer.parseInt( 2972 parser.getAttributeValue(null, ATTR_VALUE)); 2973 } else if (TAG_STATUS_BAR.equals(tag)) { 2974 policy.mStatusBarDisabled = Boolean.parseBoolean( 2975 parser.getAttributeValue(null, ATTR_DISABLED)); 2976 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2977 policy.doNotAskCredentialsOnBoot = true; 2978 } else if (TAG_AFFILIATION_ID.equals(tag)) { 2979 policy.mAffiliationIds.add(parser.getAttributeValue(null, ATTR_ID)); 2980 } else if (TAG_LAST_SECURITY_LOG_RETRIEVAL.equals(tag)) { 2981 policy.mLastSecurityLogRetrievalTime = Long.parseLong( 2982 parser.getAttributeValue(null, ATTR_VALUE)); 2983 } else if (TAG_LAST_BUG_REPORT_REQUEST.equals(tag)) { 2984 policy.mLastBugReportRequestTime = Long.parseLong( 2985 parser.getAttributeValue(null, ATTR_VALUE)); 2986 } else if (TAG_LAST_NETWORK_LOG_RETRIEVAL.equals(tag)) { 2987 policy.mLastNetworkLogsRetrievalTime = Long.parseLong( 2988 parser.getAttributeValue(null, ATTR_VALUE)); 2989 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 2990 String pending = parser.getAttributeValue(null, ATTR_VALUE); 2991 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 2992 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 2993 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 2994 } else if ("active-password".equals(tag)) { 2995 // Remove password metrics from saved settings, as we no longer wish to store 2996 // these on disk 2997 needsRewrite = true; 2998 } else if (TAG_PASSWORD_VALIDITY.equals(tag)) { 2999 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 3000 // This flag is only used for FDE devices 3001 policy.mPasswordValidAtLastCheckpoint = Boolean.parseBoolean( 3002 parser.getAttributeValue(null, ATTR_VALUE)); 3003 } 3004 } else if (TAG_PASSWORD_TOKEN_HANDLE.equals(tag)) { 3005 policy.mPasswordTokenHandle = Long.parseLong( 3006 parser.getAttributeValue(null, ATTR_VALUE)); 3007 } else if (TAG_CURRENT_INPUT_METHOD_SET.equals(tag)) { 3008 policy.mCurrentInputMethodSet = true; 3009 } else if (TAG_OWNER_INSTALLED_CA_CERT.equals(tag)) { 3010 policy.mOwnerInstalledCaCerts.add(parser.getAttributeValue(null, ATTR_ALIAS)); 3011 } else { 3012 Slog.w(LOG_TAG, "Unknown tag: " + tag); 3013 XmlUtils.skipCurrentTag(parser); 3014 } 3015 } 3016 } catch (FileNotFoundException e) { 3017 // Don't be noisy, this is normal if we haven't defined any policies. 3018 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 3019 | IndexOutOfBoundsException e) { 3020 Slog.w(LOG_TAG, "failed parsing " + file, e); 3021 } 3022 try { 3023 if (stream != null) { 3024 stream.close(); 3025 } 3026 } catch (IOException e) { 3027 // Ignore 3028 } 3029 3030 // Generate a list of admins from the admin map 3031 policy.mAdminList.addAll(policy.mAdminMap.values()); 3032 3033 // Might need to upgrade the file by rewriting it 3034 if (needsRewrite) { 3035 saveSettingsLocked(userHandle); 3036 } 3037 3038 validatePasswordOwnerLocked(policy); 3039 updateMaximumTimeToLockLocked(userHandle); 3040 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 3041 updateLockTaskFeaturesLocked(policy.mLockTaskFeatures, userHandle); 3042 if (policy.mStatusBarDisabled) { 3043 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 3044 } 3045 } 3046 3047 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 3048 long ident = mInjector.binderClearCallingIdentity(); 3049 try { 3050 mInjector.getIActivityManager() 3051 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 3052 } catch (RemoteException e) { 3053 // Not gonna happen. 3054 } finally { 3055 mInjector.binderRestoreCallingIdentity(ident); 3056 } 3057 } 3058 3059 private void updateLockTaskFeaturesLocked(int flags, int userId) { 3060 long ident = mInjector.binderClearCallingIdentity(); 3061 try { 3062 mInjector.getIActivityManager() 3063 .updateLockTaskFeatures(userId, flags); 3064 } catch (RemoteException e) { 3065 // Not gonna happen. 3066 } finally { 3067 mInjector.binderRestoreCallingIdentity(ident); 3068 } 3069 } 3070 3071 private void updateDeviceOwnerLocked() { 3072 long ident = mInjector.binderClearCallingIdentity(); 3073 try { 3074 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 3075 // user id and also protect all other DAs too. 3076 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 3077 if (deviceOwnerComponent != null) { 3078 mInjector.getIActivityManager() 3079 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 3080 } 3081 } catch (RemoteException e) { 3082 // Not gonna happen. 3083 } finally { 3084 mInjector.binderRestoreCallingIdentity(ident); 3085 } 3086 } 3087 3088 static void validateQualityConstant(int quality) { 3089 switch (quality) { 3090 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 3091 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 3092 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 3093 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 3094 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 3095 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 3096 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 3097 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 3098 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 3099 return; 3100 } 3101 throw new IllegalArgumentException("Invalid quality constant: 0x" 3102 + Integer.toHexString(quality)); 3103 } 3104 3105 void validatePasswordOwnerLocked(DevicePolicyData policy) { 3106 if (policy.mPasswordOwner >= 0) { 3107 boolean haveOwner = false; 3108 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 3109 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 3110 haveOwner = true; 3111 break; 3112 } 3113 } 3114 if (!haveOwner) { 3115 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 3116 + " no longer active; disabling"); 3117 policy.mPasswordOwner = -1; 3118 } 3119 } 3120 } 3121 3122 @VisibleForTesting 3123 @Override 3124 void systemReady(int phase) { 3125 if (!mHasFeature) { 3126 return; 3127 } 3128 switch (phase) { 3129 case SystemService.PHASE_LOCK_SETTINGS_READY: 3130 onLockSettingsReady(); 3131 break; 3132 case SystemService.PHASE_BOOT_COMPLETED: 3133 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 3134 break; 3135 } 3136 } 3137 3138 private void onLockSettingsReady() { 3139 getUserData(UserHandle.USER_SYSTEM); 3140 loadOwners(); 3141 cleanUpOldUsers(); 3142 maybeSetDefaultProfileOwnerUserRestrictions(); 3143 handleStartUser(UserHandle.USER_SYSTEM); 3144 3145 // Register an observer for watching for user setup complete and settings changes. 3146 mSetupContentObserver.register(); 3147 // Initialize the user setup state, to handle the upgrade case. 3148 updateUserSetupCompleteAndPaired(); 3149 3150 List<String> packageList; 3151 synchronized (this) { 3152 packageList = getKeepUninstalledPackagesLocked(); 3153 } 3154 if (packageList != null) { 3155 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 3156 } 3157 3158 synchronized (this) { 3159 // push the force-ephemeral-users policy to the user manager. 3160 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 3161 if (deviceOwner != null) { 3162 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 3163 } 3164 } 3165 } 3166 3167 private void ensureDeviceOwnerUserStarted() { 3168 final int userId; 3169 synchronized (this) { 3170 if (!mOwners.hasDeviceOwner()) { 3171 return; 3172 } 3173 userId = mOwners.getDeviceOwnerUserId(); 3174 } 3175 if (VERBOSE_LOG) { 3176 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 3177 } 3178 if (userId != UserHandle.USER_SYSTEM) { 3179 try { 3180 mInjector.getIActivityManager().startUserInBackground(userId); 3181 3182 // STOPSHIP Prevent the DO user from being killed. 3183 3184 } catch (RemoteException e) { 3185 Slog.w(LOG_TAG, "Exception starting user", e); 3186 } 3187 } 3188 } 3189 3190 @Override 3191 void handleStartUser(int userId) { 3192 updateScreenCaptureDisabledInWindowManager(userId, 3193 getScreenCaptureDisabled(null, userId)); 3194 pushUserRestrictions(userId); 3195 3196 startOwnerService(userId, "start-user"); 3197 } 3198 3199 @Override 3200 void handleUnlockUser(int userId) { 3201 startOwnerService(userId, "unlock-user"); 3202 } 3203 3204 @Override 3205 void handleStopUser(int userId) { 3206 stopOwnerService(userId, "stop-user"); 3207 } 3208 3209 private void startOwnerService(int userId, String actionForLog) { 3210 final ComponentName owner = getOwnerComponent(userId); 3211 if (owner != null) { 3212 mDeviceAdminServiceController.startServiceForOwner( 3213 owner.getPackageName(), userId, actionForLog); 3214 } 3215 } 3216 3217 private void stopOwnerService(int userId, String actionForLog) { 3218 mDeviceAdminServiceController.stopServiceForOwner(userId, actionForLog); 3219 } 3220 3221 private void cleanUpOldUsers() { 3222 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 3223 // before reboot 3224 Set<Integer> usersWithProfileOwners; 3225 Set<Integer> usersWithData; 3226 synchronized(this) { 3227 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 3228 usersWithData = new ArraySet<>(); 3229 for (int i = 0; i < mUserData.size(); i++) { 3230 usersWithData.add(mUserData.keyAt(i)); 3231 } 3232 } 3233 List<UserInfo> allUsers = mUserManager.getUsers(); 3234 3235 Set<Integer> deletedUsers = new ArraySet<>(); 3236 deletedUsers.addAll(usersWithProfileOwners); 3237 deletedUsers.addAll(usersWithData); 3238 for (UserInfo userInfo : allUsers) { 3239 deletedUsers.remove(userInfo.id); 3240 } 3241 for (Integer userId : deletedUsers) { 3242 removeUserData(userId); 3243 } 3244 } 3245 3246 private void handlePasswordExpirationNotification(int userHandle) { 3247 final Bundle adminExtras = new Bundle(); 3248 adminExtras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 3249 3250 synchronized (this) { 3251 final long now = System.currentTimeMillis(); 3252 3253 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 3254 userHandle, /* parent */ false); 3255 final int N = admins.size(); 3256 for (int i = 0; i < N; i++) { 3257 ActiveAdmin admin = admins.get(i); 3258 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 3259 && admin.passwordExpirationTimeout > 0L 3260 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 3261 && admin.passwordExpirationDate > 0L) { 3262 sendAdminCommandLocked(admin, 3263 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING, adminExtras, null); 3264 } 3265 } 3266 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 3267 } 3268 } 3269 3270 /** 3271 * Clean up internal state when the set of installed trusted CA certificates changes. 3272 * 3273 * @param userHandle user to check for. This must be a real user and not, for example, 3274 * {@link UserHandle#ALL}. 3275 * @param installedCertificates the full set of certificate authorities currently installed for 3276 * {@param userHandle}. After calling this function, {@code mAcceptedCaCertificates} will 3277 * correspond to some subset of this. 3278 */ 3279 protected void onInstalledCertificatesChanged(final UserHandle userHandle, 3280 final @NonNull Collection<String> installedCertificates) { 3281 if (!mHasFeature) { 3282 return; 3283 } 3284 enforceManageUsers(); 3285 3286 synchronized (this) { 3287 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 3288 3289 boolean changed = false; 3290 changed |= policy.mAcceptedCaCertificates.retainAll(installedCertificates); 3291 changed |= policy.mOwnerInstalledCaCerts.retainAll(installedCertificates); 3292 if (changed) { 3293 saveSettingsLocked(userHandle.getIdentifier()); 3294 } 3295 } 3296 } 3297 3298 /** 3299 * Internal method used by {@link CertificateMonitor}. 3300 */ 3301 protected Set<String> getAcceptedCaCertificates(final UserHandle userHandle) { 3302 if (!mHasFeature) { 3303 return Collections.<String> emptySet(); 3304 } 3305 synchronized (this) { 3306 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 3307 return policy.mAcceptedCaCertificates; 3308 } 3309 } 3310 3311 /** 3312 * @param adminReceiver The admin to add 3313 * @param refreshing true = update an active admin, no error 3314 */ 3315 @Override 3316 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 3317 if (!mHasFeature) { 3318 return; 3319 } 3320 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 3321 } 3322 3323 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 3324 Bundle onEnableData) { 3325 mContext.enforceCallingOrSelfPermission( 3326 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3327 enforceFullCrossUsersPermission(userHandle); 3328 3329 DevicePolicyData policy = getUserData(userHandle); 3330 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 3331 /* throwForMissingPermission= */ true); 3332 synchronized (this) { 3333 checkActiveAdminPrecondition(adminReceiver, info, policy); 3334 long ident = mInjector.binderClearCallingIdentity(); 3335 try { 3336 final ActiveAdmin existingAdmin 3337 = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3338 if (!refreshing && existingAdmin != null) { 3339 throw new IllegalArgumentException("Admin is already added"); 3340 } 3341 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 3342 newAdmin.testOnlyAdmin = 3343 (existingAdmin != null) ? existingAdmin.testOnlyAdmin 3344 : isPackageTestOnly(adminReceiver.getPackageName(), userHandle); 3345 policy.mAdminMap.put(adminReceiver, newAdmin); 3346 int replaceIndex = -1; 3347 final int N = policy.mAdminList.size(); 3348 for (int i=0; i < N; i++) { 3349 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 3350 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 3351 replaceIndex = i; 3352 break; 3353 } 3354 } 3355 if (replaceIndex == -1) { 3356 policy.mAdminList.add(newAdmin); 3357 enableIfNecessary(info.getPackageName(), userHandle); 3358 } else { 3359 policy.mAdminList.set(replaceIndex, newAdmin); 3360 } 3361 saveSettingsLocked(userHandle); 3362 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 3363 onEnableData, null); 3364 } finally { 3365 mInjector.binderRestoreCallingIdentity(ident); 3366 } 3367 } 3368 } 3369 3370 private void transferActiveAdminUncheckedLocked(ComponentName incomingReceiver, 3371 ComponentName outgoingReceiver, int userHandle) { 3372 final DevicePolicyData policy = getUserData(userHandle); 3373 final DeviceAdminInfo incomingDeviceInfo = findAdmin(incomingReceiver, userHandle, 3374 /* throwForMissingPermission= */ true); 3375 final ActiveAdmin adminToTransfer = policy.mAdminMap.get(outgoingReceiver); 3376 final int oldAdminUid = adminToTransfer.getUid(); 3377 3378 adminToTransfer.transfer(incomingDeviceInfo); 3379 policy.mAdminMap.remove(outgoingReceiver); 3380 policy.mAdminMap.put(incomingReceiver, adminToTransfer); 3381 if (policy.mPasswordOwner == oldAdminUid) { 3382 policy.mPasswordOwner = adminToTransfer.getUid(); 3383 } 3384 3385 saveSettingsLocked(userHandle); 3386 //TODO: Make sure we revert back when we detect a failure. 3387 sendAdminCommandLocked(adminToTransfer, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 3388 null, null); 3389 } 3390 3391 private void checkActiveAdminPrecondition(ComponentName adminReceiver, DeviceAdminInfo info, 3392 DevicePolicyData policy) { 3393 if (info == null) { 3394 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 3395 } 3396 if (!info.getActivityInfo().applicationInfo.isInternal()) { 3397 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 3398 + adminReceiver); 3399 } 3400 if (info.getActivityInfo().applicationInfo.isInstantApp()) { 3401 throw new IllegalArgumentException("Instant apps cannot be device admins: " 3402 + adminReceiver); 3403 } 3404 if (policy.mRemovingAdmins.contains(adminReceiver)) { 3405 throw new IllegalArgumentException( 3406 "Trying to set an admin which is being removed"); 3407 } 3408 } 3409 3410 @Override 3411 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 3412 if (!mHasFeature) { 3413 return false; 3414 } 3415 enforceFullCrossUsersPermission(userHandle); 3416 synchronized (this) { 3417 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 3418 } 3419 } 3420 3421 @Override 3422 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 3423 if (!mHasFeature) { 3424 return false; 3425 } 3426 enforceFullCrossUsersPermission(userHandle); 3427 synchronized (this) { 3428 DevicePolicyData policyData = getUserData(userHandle); 3429 return policyData.mRemovingAdmins.contains(adminReceiver); 3430 } 3431 } 3432 3433 @Override 3434 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 3435 if (!mHasFeature) { 3436 return false; 3437 } 3438 enforceFullCrossUsersPermission(userHandle); 3439 synchronized (this) { 3440 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3441 if (administrator == null) { 3442 throw new SecurityException("No active admin " + adminReceiver); 3443 } 3444 return administrator.info.usesPolicy(policyId); 3445 } 3446 } 3447 3448 @Override 3449 @SuppressWarnings("unchecked") 3450 public List<ComponentName> getActiveAdmins(int userHandle) { 3451 if (!mHasFeature) { 3452 return Collections.EMPTY_LIST; 3453 } 3454 3455 enforceFullCrossUsersPermission(userHandle); 3456 synchronized (this) { 3457 DevicePolicyData policy = getUserData(userHandle); 3458 final int N = policy.mAdminList.size(); 3459 if (N <= 0) { 3460 return null; 3461 } 3462 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 3463 for (int i=0; i<N; i++) { 3464 res.add(policy.mAdminList.get(i).info.getComponent()); 3465 } 3466 return res; 3467 } 3468 } 3469 3470 @Override 3471 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 3472 if (!mHasFeature) { 3473 return false; 3474 } 3475 enforceFullCrossUsersPermission(userHandle); 3476 synchronized (this) { 3477 DevicePolicyData policy = getUserData(userHandle); 3478 final int N = policy.mAdminList.size(); 3479 for (int i=0; i<N; i++) { 3480 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 3481 return true; 3482 } 3483 } 3484 return false; 3485 } 3486 } 3487 3488 public void forceRemoveActiveAdmin(ComponentName adminReceiver, int userHandle) { 3489 if (!mHasFeature) { 3490 return; 3491 } 3492 Preconditions.checkNotNull(adminReceiver, "ComponentName is null"); 3493 enforceShell("forceRemoveActiveAdmin"); 3494 long ident = mInjector.binderClearCallingIdentity(); 3495 try { 3496 synchronized (this) { 3497 if (!isAdminTestOnlyLocked(adminReceiver, userHandle)) { 3498 throw new SecurityException("Attempt to remove non-test admin " 3499 + adminReceiver + " " + userHandle); 3500 } 3501 3502 // If admin is a device or profile owner tidy that up first. 3503 if (isDeviceOwner(adminReceiver, userHandle)) { 3504 clearDeviceOwnerLocked(getDeviceOwnerAdminLocked(), userHandle); 3505 } 3506 if (isProfileOwner(adminReceiver, userHandle)) { 3507 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, 3508 userHandle, /* parent */ false); 3509 clearProfileOwnerLocked(admin, userHandle); 3510 } 3511 } 3512 // Remove the admin skipping sending the broadcast. 3513 removeAdminArtifacts(adminReceiver, userHandle); 3514 Slog.i(LOG_TAG, "Admin " + adminReceiver + " removed from user " + userHandle); 3515 } finally { 3516 mInjector.binderRestoreCallingIdentity(ident); 3517 } 3518 } 3519 3520 private void clearDeviceOwnerUserRestrictionLocked(UserHandle userHandle) { 3521 // ManagedProvisioning/DPC sets DISALLOW_ADD_USER. Clear to recover to the original state 3522 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_USER, userHandle)) { 3523 mUserManager.setUserRestriction(UserManager.DISALLOW_ADD_USER, false, userHandle); 3524 } 3525 } 3526 3527 /** 3528 * Return if a given package has testOnly="true", in which case we'll relax certain rules 3529 * for CTS. 3530 * 3531 * DO NOT use this method except in {@link #setActiveAdmin}. Use {@link #isAdminTestOnlyLocked} 3532 * to check wehter an active admin is test-only or not. 3533 * 3534 * The system allows this flag to be changed when an app is updated, which is not good 3535 * for us. So we persist the flag in {@link ActiveAdmin} when an admin is first installed, 3536 * and used the persisted version in actual checks. (See b/31382361 and b/28928996) 3537 */ 3538 private boolean isPackageTestOnly(String packageName, int userHandle) { 3539 final ApplicationInfo ai; 3540 try { 3541 ai = mIPackageManager.getApplicationInfo(packageName, 3542 (PackageManager.MATCH_DIRECT_BOOT_AWARE 3543 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE), userHandle); 3544 } catch (RemoteException e) { 3545 throw new IllegalStateException(e); 3546 } 3547 if (ai == null) { 3548 throw new IllegalStateException("Couldn't find package: " 3549 + packageName + " on user " + userHandle); 3550 } 3551 return (ai.flags & ApplicationInfo.FLAG_TEST_ONLY) != 0; 3552 } 3553 3554 /** 3555 * See {@link #isPackageTestOnly}. 3556 */ 3557 private boolean isAdminTestOnlyLocked(ComponentName who, int userHandle) { 3558 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3559 return (admin != null) && admin.testOnlyAdmin; 3560 } 3561 3562 private void enforceShell(String method) { 3563 final int callingUid = Binder.getCallingUid(); 3564 if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) { 3565 throw new SecurityException("Non-shell user attempted to call " + method); 3566 } 3567 } 3568 3569 @Override 3570 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 3571 if (!mHasFeature) { 3572 return; 3573 } 3574 enforceFullCrossUsersPermission(userHandle); 3575 enforceUserUnlocked(userHandle); 3576 synchronized (this) { 3577 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3578 if (admin == null) { 3579 return; 3580 } 3581 // Active device/profile owners must remain active admins. 3582 if (isDeviceOwner(adminReceiver, userHandle) 3583 || isProfileOwner(adminReceiver, userHandle)) { 3584 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 3585 adminReceiver); 3586 return; 3587 } 3588 if (admin.getUid() != mInjector.binderGetCallingUid()) { 3589 mContext.enforceCallingOrSelfPermission( 3590 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3591 } 3592 long ident = mInjector.binderClearCallingIdentity(); 3593 try { 3594 removeActiveAdminLocked(adminReceiver, userHandle); 3595 } finally { 3596 mInjector.binderRestoreCallingIdentity(ident); 3597 } 3598 } 3599 } 3600 3601 @Override 3602 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 3603 ComponentName profileOwner = getProfileOwner(userHandle); 3604 // Profile challenge is supported on N or newer release. 3605 return profileOwner != null && 3606 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 3607 } 3608 3609 @Override 3610 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 3611 if (!mHasFeature) { 3612 return; 3613 } 3614 Preconditions.checkNotNull(who, "ComponentName is null"); 3615 validateQualityConstant(quality); 3616 3617 synchronized (this) { 3618 ActiveAdmin ap = getActiveAdminForCallerLocked( 3619 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3620 if (ap.minimumPasswordMetrics.quality != quality) { 3621 ap.minimumPasswordMetrics.quality = quality; 3622 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3623 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3624 } 3625 } 3626 } 3627 3628 /** 3629 * Updates flag in memory that tells us whether the user's password currently satisfies the 3630 * requirements set by all of the user's active admins. This should be called before 3631 * {@link #saveSettingsLocked} whenever the password or the admin policies have changed. 3632 */ 3633 @GuardedBy("DevicePolicyManagerService.this") 3634 private void updatePasswordValidityCheckpointLocked(int userHandle) { 3635 DevicePolicyData policy = getUserData(userHandle); 3636 policy.mPasswordValidAtLastCheckpoint = isActivePasswordSufficientForUserLocked( 3637 policy, policy.mUserHandle, false); 3638 } 3639 3640 @Override 3641 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 3642 if (!mHasFeature) { 3643 return PASSWORD_QUALITY_UNSPECIFIED; 3644 } 3645 enforceFullCrossUsersPermission(userHandle); 3646 synchronized (this) { 3647 int mode = PASSWORD_QUALITY_UNSPECIFIED; 3648 3649 if (who != null) { 3650 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3651 return admin != null ? admin.minimumPasswordMetrics.quality : mode; 3652 } 3653 3654 // Return the strictest policy across all participating admins. 3655 List<ActiveAdmin> admins = 3656 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3657 final int N = admins.size(); 3658 for (int i = 0; i < N; i++) { 3659 ActiveAdmin admin = admins.get(i); 3660 if (mode < admin.minimumPasswordMetrics.quality) { 3661 mode = admin.minimumPasswordMetrics.quality; 3662 } 3663 } 3664 return mode; 3665 } 3666 } 3667 3668 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 3669 int userHandle, boolean parent) { 3670 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 3671 // If this user has a separate challenge, only return its restrictions. 3672 return getUserDataUnchecked(userHandle).mAdminList; 3673 } else { 3674 // Return all admins for this user and the profiles that are visible from this 3675 // user that do not use a separate work challenge. 3676 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 3677 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3678 DevicePolicyData policy = getUserData(userInfo.id); 3679 if (!userInfo.isManagedProfile()) { 3680 admins.addAll(policy.mAdminList); 3681 } else { 3682 // For managed profiles, we always include the policies set on the parent 3683 // profile. Additionally, we include the ones set on the managed profile 3684 // if no separate challenge is in place. 3685 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 3686 final int N = policy.mAdminList.size(); 3687 for (int i = 0; i < N; i++) { 3688 ActiveAdmin admin = policy.mAdminList.get(i); 3689 if (admin.hasParentActiveAdmin()) { 3690 admins.add(admin.getParentActiveAdmin()); 3691 } 3692 if (!hasSeparateChallenge) { 3693 admins.add(admin); 3694 } 3695 } 3696 } 3697 } 3698 return admins; 3699 } 3700 } 3701 3702 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 3703 long ident = mInjector.binderClearCallingIdentity(); 3704 try { 3705 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 3706 } finally { 3707 mInjector.binderRestoreCallingIdentity(ident); 3708 } 3709 } 3710 3711 @Override 3712 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 3713 if (!mHasFeature) { 3714 return; 3715 } 3716 Preconditions.checkNotNull(who, "ComponentName is null"); 3717 synchronized (this) { 3718 ActiveAdmin ap = getActiveAdminForCallerLocked( 3719 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3720 if (ap.minimumPasswordMetrics.length != length) { 3721 ap.minimumPasswordMetrics.length = length; 3722 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3723 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3724 } 3725 } 3726 } 3727 3728 @Override 3729 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 3730 return getStrictestPasswordRequirement(who, userHandle, parent, 3731 admin -> admin.minimumPasswordMetrics.length, PASSWORD_QUALITY_UNSPECIFIED); 3732 } 3733 3734 @Override 3735 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 3736 if (!mHasFeature) { 3737 return; 3738 } 3739 Preconditions.checkNotNull(who, "ComponentName is null"); 3740 synchronized (this) { 3741 ActiveAdmin ap = getActiveAdminForCallerLocked( 3742 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3743 if (ap.passwordHistoryLength != length) { 3744 ap.passwordHistoryLength = length; 3745 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3746 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3747 } 3748 } 3749 } 3750 3751 @Override 3752 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 3753 return getStrictestPasswordRequirement(who, userHandle, parent, 3754 admin -> admin.passwordHistoryLength, PASSWORD_QUALITY_UNSPECIFIED); 3755 } 3756 3757 @Override 3758 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 3759 if (!mHasFeature) { 3760 return; 3761 } 3762 Preconditions.checkNotNull(who, "ComponentName is null"); 3763 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 3764 final int userHandle = mInjector.userHandleGetCallingUserId(); 3765 synchronized (this) { 3766 ActiveAdmin ap = getActiveAdminForCallerLocked( 3767 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 3768 // Calling this API automatically bumps the expiration date 3769 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3770 ap.passwordExpirationDate = expiration; 3771 ap.passwordExpirationTimeout = timeout; 3772 if (timeout > 0L) { 3773 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 3774 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 3775 .format(new Date(expiration))); 3776 } 3777 saveSettingsLocked(userHandle); 3778 3779 // in case this is the first one, set the alarm on the appropriate user. 3780 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 3781 } 3782 } 3783 3784 /** 3785 * Return a single admin's expiration cycle time, or the min of all cycle times. 3786 * Returns 0 if not configured. 3787 */ 3788 @Override 3789 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 3790 if (!mHasFeature) { 3791 return 0L; 3792 } 3793 enforceFullCrossUsersPermission(userHandle); 3794 synchronized (this) { 3795 long timeout = 0L; 3796 3797 if (who != null) { 3798 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3799 return admin != null ? admin.passwordExpirationTimeout : timeout; 3800 } 3801 3802 // Return the strictest policy across all participating admins. 3803 List<ActiveAdmin> admins = 3804 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3805 final int N = admins.size(); 3806 for (int i = 0; i < N; i++) { 3807 ActiveAdmin admin = admins.get(i); 3808 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 3809 && timeout > admin.passwordExpirationTimeout)) { 3810 timeout = admin.passwordExpirationTimeout; 3811 } 3812 } 3813 return timeout; 3814 } 3815 } 3816 3817 @Override 3818 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3819 final int userId = UserHandle.getCallingUserId(); 3820 List<String> changedProviders = null; 3821 3822 synchronized (this) { 3823 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3824 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3825 if (activeAdmin.crossProfileWidgetProviders == null) { 3826 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 3827 } 3828 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3829 if (!providers.contains(packageName)) { 3830 providers.add(packageName); 3831 changedProviders = new ArrayList<>(providers); 3832 saveSettingsLocked(userId); 3833 } 3834 } 3835 3836 if (changedProviders != null) { 3837 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3838 return true; 3839 } 3840 3841 return false; 3842 } 3843 3844 @Override 3845 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3846 final int userId = UserHandle.getCallingUserId(); 3847 List<String> changedProviders = null; 3848 3849 synchronized (this) { 3850 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3851 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3852 if (activeAdmin.crossProfileWidgetProviders == null 3853 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3854 return false; 3855 } 3856 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3857 if (providers.remove(packageName)) { 3858 changedProviders = new ArrayList<>(providers); 3859 saveSettingsLocked(userId); 3860 } 3861 } 3862 3863 if (changedProviders != null) { 3864 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3865 return true; 3866 } 3867 3868 return false; 3869 } 3870 3871 @Override 3872 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 3873 synchronized (this) { 3874 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3875 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3876 if (activeAdmin.crossProfileWidgetProviders == null 3877 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3878 return null; 3879 } 3880 if (mInjector.binderIsCallingUidMyUid()) { 3881 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 3882 } else { 3883 return activeAdmin.crossProfileWidgetProviders; 3884 } 3885 } 3886 } 3887 3888 /** 3889 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 3890 * Returns 0 if not configured. 3891 */ 3892 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 3893 long timeout = 0L; 3894 3895 if (who != null) { 3896 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3897 return admin != null ? admin.passwordExpirationDate : timeout; 3898 } 3899 3900 // Return the strictest policy across all participating admins. 3901 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3902 final int N = admins.size(); 3903 for (int i = 0; i < N; i++) { 3904 ActiveAdmin admin = admins.get(i); 3905 if (timeout == 0L || (admin.passwordExpirationDate != 0 3906 && timeout > admin.passwordExpirationDate)) { 3907 timeout = admin.passwordExpirationDate; 3908 } 3909 } 3910 return timeout; 3911 } 3912 3913 @Override 3914 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 3915 if (!mHasFeature) { 3916 return 0L; 3917 } 3918 enforceFullCrossUsersPermission(userHandle); 3919 synchronized (this) { 3920 return getPasswordExpirationLocked(who, userHandle, parent); 3921 } 3922 } 3923 3924 @Override 3925 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 3926 if (!mHasFeature) { 3927 return; 3928 } 3929 Preconditions.checkNotNull(who, "ComponentName is null"); 3930 synchronized (this) { 3931 ActiveAdmin ap = getActiveAdminForCallerLocked( 3932 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3933 if (ap.minimumPasswordMetrics.upperCase != length) { 3934 ap.minimumPasswordMetrics.upperCase = length; 3935 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3936 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3937 } 3938 } 3939 } 3940 3941 @Override 3942 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 3943 return getStrictestPasswordRequirement(who, userHandle, parent, 3944 admin -> admin.minimumPasswordMetrics.upperCase, PASSWORD_QUALITY_COMPLEX); 3945 } 3946 3947 @Override 3948 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 3949 Preconditions.checkNotNull(who, "ComponentName is null"); 3950 synchronized (this) { 3951 ActiveAdmin ap = getActiveAdminForCallerLocked( 3952 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3953 if (ap.minimumPasswordMetrics.lowerCase != length) { 3954 ap.minimumPasswordMetrics.lowerCase = length; 3955 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3956 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3957 } 3958 } 3959 } 3960 3961 @Override 3962 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 3963 return getStrictestPasswordRequirement(who, userHandle, parent, 3964 admin -> admin.minimumPasswordMetrics.lowerCase, PASSWORD_QUALITY_COMPLEX); 3965 } 3966 3967 @Override 3968 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 3969 if (!mHasFeature) { 3970 return; 3971 } 3972 Preconditions.checkNotNull(who, "ComponentName is null"); 3973 synchronized (this) { 3974 ActiveAdmin ap = getActiveAdminForCallerLocked( 3975 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3976 if (ap.minimumPasswordMetrics.letters != length) { 3977 ap.minimumPasswordMetrics.letters = length; 3978 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 3979 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3980 } 3981 } 3982 } 3983 3984 @Override 3985 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 3986 return getStrictestPasswordRequirement(who, userHandle, parent, 3987 admin -> admin.minimumPasswordMetrics.letters, PASSWORD_QUALITY_COMPLEX); 3988 } 3989 3990 @Override 3991 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 3992 if (!mHasFeature) { 3993 return; 3994 } 3995 Preconditions.checkNotNull(who, "ComponentName is null"); 3996 synchronized (this) { 3997 ActiveAdmin ap = getActiveAdminForCallerLocked( 3998 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3999 if (ap.minimumPasswordMetrics.numeric != length) { 4000 ap.minimumPasswordMetrics.numeric = length; 4001 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 4002 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4003 } 4004 } 4005 } 4006 4007 @Override 4008 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 4009 return getStrictestPasswordRequirement(who, userHandle, parent, 4010 admin -> admin.minimumPasswordMetrics.numeric, PASSWORD_QUALITY_COMPLEX); 4011 } 4012 4013 @Override 4014 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 4015 if (!mHasFeature) { 4016 return; 4017 } 4018 Preconditions.checkNotNull(who, "ComponentName is null"); 4019 synchronized (this) { 4020 ActiveAdmin ap = getActiveAdminForCallerLocked( 4021 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4022 if (ap.minimumPasswordMetrics.symbols != length) { 4023 ap.minimumPasswordMetrics.symbols = length; 4024 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 4025 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4026 } 4027 } 4028 } 4029 4030 @Override 4031 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 4032 return getStrictestPasswordRequirement(who, userHandle, parent, 4033 admin -> admin.minimumPasswordMetrics.symbols, PASSWORD_QUALITY_COMPLEX); 4034 } 4035 4036 @Override 4037 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 4038 if (!mHasFeature) { 4039 return; 4040 } 4041 Preconditions.checkNotNull(who, "ComponentName is null"); 4042 synchronized (this) { 4043 ActiveAdmin ap = getActiveAdminForCallerLocked( 4044 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4045 if (ap.minimumPasswordMetrics.nonLetter != length) { 4046 ap.minimumPasswordMetrics.nonLetter = length; 4047 updatePasswordValidityCheckpointLocked(mInjector.userHandleGetCallingUserId()); 4048 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4049 } 4050 } 4051 } 4052 4053 @Override 4054 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 4055 return getStrictestPasswordRequirement(who, userHandle, parent, 4056 admin -> admin.minimumPasswordMetrics.nonLetter, PASSWORD_QUALITY_COMPLEX); 4057 } 4058 4059 /** 4060 * Calculates strictest (maximum) value for a given password property enforced by admin[s]. 4061 */ 4062 private int getStrictestPasswordRequirement(ComponentName who, int userHandle, 4063 boolean parent, Function<ActiveAdmin, Integer> getter, int minimumPasswordQuality) { 4064 if (!mHasFeature) { 4065 return 0; 4066 } 4067 enforceFullCrossUsersPermission(userHandle); 4068 synchronized (this) { 4069 if (who != null) { 4070 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4071 return admin != null ? getter.apply(admin) : 0; 4072 } 4073 4074 int maxValue = 0; 4075 final List<ActiveAdmin> admins = 4076 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4077 final int N = admins.size(); 4078 for (int i = 0; i < N; i++) { 4079 final ActiveAdmin admin = admins.get(i); 4080 if (!isLimitPasswordAllowed(admin, minimumPasswordQuality)) { 4081 continue; 4082 } 4083 final Integer adminValue = getter.apply(admin); 4084 if (adminValue > maxValue) { 4085 maxValue = adminValue; 4086 } 4087 } 4088 return maxValue; 4089 } 4090 } 4091 4092 /* @return the password blacklist set by the admin or {@code null} if none. */ 4093 PasswordBlacklist getAdminPasswordBlacklistLocked(@NonNull ActiveAdmin admin) { 4094 final int userId = UserHandle.getUserId(admin.getUid()); 4095 return admin.passwordBlacklistFile == null ? null : new PasswordBlacklist( 4096 new File(getPolicyFileDirectory(userId), admin.passwordBlacklistFile)); 4097 } 4098 4099 private static final String PASSWORD_BLACKLIST_FILE_PREFIX = "password-blacklist-"; 4100 private static final String PASSWORD_BLACKLIST_FILE_SUFFIX = ""; 4101 4102 @Override 4103 public boolean setPasswordBlacklist(ComponentName who, String name, List<String> blacklist, 4104 boolean parent) { 4105 if (!mHasFeature) { 4106 return false; 4107 } 4108 Preconditions.checkNotNull(who, "who is null"); 4109 4110 synchronized (this) { 4111 final ActiveAdmin admin = getActiveAdminForCallerLocked( 4112 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 4113 final int userId = mInjector.userHandleGetCallingUserId(); 4114 PasswordBlacklist adminBlacklist = getAdminPasswordBlacklistLocked(admin); 4115 4116 if (blacklist == null || blacklist.isEmpty()) { 4117 // Remove the adminBlacklist 4118 admin.passwordBlacklistFile = null; 4119 saveSettingsLocked(userId); 4120 if (adminBlacklist != null) { 4121 adminBlacklist.delete(); 4122 } 4123 return true; 4124 } 4125 4126 // Validate server side 4127 Preconditions.checkNotNull(name, "name is null"); 4128 DevicePolicyManager.enforcePasswordBlacklistSize(blacklist); 4129 4130 // Blacklist is case insensitive so normalize to lower case 4131 final int blacklistSize = blacklist.size(); 4132 for (int i = 0; i < blacklistSize; ++i) { 4133 blacklist.set(i, blacklist.get(i).toLowerCase()); 4134 } 4135 4136 final boolean isNewBlacklist = adminBlacklist == null; 4137 if (isNewBlacklist) { 4138 // Create a new file for the blacklist. There could be multiple admins, each setting 4139 // different blacklists, to restrict a user's credential, for example a managed 4140 // profile can impose restrictions on its parent while the parent is already 4141 // restricted by its own admin. A deterministic naming scheme would be fragile if 4142 // new types of admin are introduced so we generate and save the file name instead. 4143 // This isn't a temporary file but it reuses the name generation logic 4144 final File file; 4145 try { 4146 file = File.createTempFile(PASSWORD_BLACKLIST_FILE_PREFIX, 4147 PASSWORD_BLACKLIST_FILE_SUFFIX, getPolicyFileDirectory(userId)); 4148 } catch (IOException e) { 4149 Slog.e(LOG_TAG, "Failed to make a file for the blacklist", e); 4150 return false; 4151 } 4152 adminBlacklist = mInjector.newPasswordBlacklist(file); 4153 } 4154 4155 if (adminBlacklist.savePasswordBlacklist(name, blacklist)) { 4156 if (isNewBlacklist) { 4157 // The blacklist was saved so point the admin to the file 4158 admin.passwordBlacklistFile = adminBlacklist.getFile().getName(); 4159 saveSettingsLocked(userId); 4160 } 4161 return true; 4162 } 4163 } 4164 4165 return false; 4166 } 4167 4168 @Override 4169 public String getPasswordBlacklistName(ComponentName who, @UserIdInt int userId, 4170 boolean parent) { 4171 if (!mHasFeature) { 4172 return null; 4173 } 4174 Preconditions.checkNotNull(who, "who is null"); 4175 enforceFullCrossUsersPermission(userId); 4176 synchronized (this) { 4177 final ActiveAdmin admin = getActiveAdminForCallerLocked( 4178 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 4179 final PasswordBlacklist blacklist = getAdminPasswordBlacklistLocked(admin); 4180 if (blacklist == null) { 4181 return null; 4182 } 4183 return blacklist.getName(); 4184 } 4185 } 4186 4187 @Override 4188 public boolean isPasswordBlacklisted(@UserIdInt int userId, String password) { 4189 if (!mHasFeature) { 4190 return false; 4191 } 4192 mContext.enforceCallingOrSelfPermission( 4193 android.Manifest.permission.TEST_BLACKLISTED_PASSWORD, null); 4194 return isPasswordBlacklistedInternal(userId, password); 4195 } 4196 4197 private boolean isPasswordBlacklistedInternal(@UserIdInt int userId, String password) { 4198 Preconditions.checkNotNull(password, "Password is null"); 4199 enforceFullCrossUsersPermission(userId); 4200 4201 // Normalize to lower case for case insensitive blacklist match 4202 final String lowerCasePassword = password.toLowerCase(); 4203 4204 synchronized (this) { 4205 final List<ActiveAdmin> admins = 4206 getActiveAdminsForLockscreenPoliciesLocked(userId, /* parent */ false); 4207 final int N = admins.size(); 4208 for (int i = 0; i < N; i++) { 4209 final PasswordBlacklist blacklist 4210 = getAdminPasswordBlacklistLocked(admins.get(i)); 4211 if (blacklist != null) { 4212 if (blacklist.isPasswordBlacklisted(lowerCasePassword)) { 4213 return true; 4214 } 4215 } 4216 } 4217 } 4218 4219 return false; 4220 } 4221 4222 @Override 4223 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 4224 if (!mHasFeature) { 4225 return true; 4226 } 4227 enforceFullCrossUsersPermission(userHandle); 4228 enforceUserUnlocked(userHandle, parent); 4229 4230 synchronized (this) { 4231 // This API can only be called by an active device admin, 4232 // so try to retrieve it to check that the caller is one. 4233 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4234 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 4235 return isActivePasswordSufficientForUserLocked(policy, userHandle, parent); 4236 } 4237 } 4238 4239 @Override 4240 public boolean isUsingUnifiedPassword(ComponentName admin) { 4241 if (!mHasFeature) { 4242 return true; 4243 } 4244 final int userId = mInjector.userHandleGetCallingUserId(); 4245 enforceProfileOrDeviceOwner(admin); 4246 enforceManagedProfile(userId, "query unified challenge status"); 4247 return !isSeparateProfileChallengeEnabled(userId); 4248 } 4249 4250 @Override 4251 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 4252 if (!mHasFeature) { 4253 return true; 4254 } 4255 enforceFullCrossUsersPermission(userHandle); 4256 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 4257 4258 synchronized (this) { 4259 final int targetUser = getProfileParentId(userHandle); 4260 enforceUserUnlocked(targetUser, false); 4261 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false)); 4262 return isActivePasswordSufficientForUserLocked(policy, targetUser, false); 4263 } 4264 } 4265 4266 private boolean isActivePasswordSufficientForUserLocked( 4267 DevicePolicyData policy, int userHandle, boolean parent) { 4268 final int requiredPasswordQuality = getPasswordQuality(null, userHandle, parent); 4269 if (requiredPasswordQuality == PASSWORD_QUALITY_UNSPECIFIED) { 4270 // A special case is when there is no required password quality, then we just return 4271 // true since any password would be sufficient. This is for the scenario when a work 4272 // profile is first created so there is no information about the current password but 4273 // it should be considered sufficient as there is no password requirement either. 4274 // This is useful since it short-circuits the password checkpoint for FDE device below. 4275 return true; 4276 } 4277 4278 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled() 4279 && !policy.mPasswordStateHasBeenSetSinceBoot) { 4280 // Before user enters their password for the first time after a reboot, return the 4281 // value of this flag, which tells us whether the password was valid the last time 4282 // settings were saved. If DPC changes password requirements on boot so that the 4283 // current password no longer meets the requirements, this value will be stale until 4284 // the next time the password is entered. 4285 return policy.mPasswordValidAtLastCheckpoint; 4286 } 4287 4288 if (policy.mActivePasswordMetrics.quality < requiredPasswordQuality) { 4289 return false; 4290 } 4291 if (requiredPasswordQuality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC 4292 && policy.mActivePasswordMetrics.length < getPasswordMinimumLength( 4293 null, userHandle, parent)) { 4294 return false; 4295 } 4296 if (requiredPasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4297 return true; 4298 } 4299 return policy.mActivePasswordMetrics.upperCase >= getPasswordMinimumUpperCase( 4300 null, userHandle, parent) 4301 && policy.mActivePasswordMetrics.lowerCase >= getPasswordMinimumLowerCase( 4302 null, userHandle, parent) 4303 && policy.mActivePasswordMetrics.letters >= getPasswordMinimumLetters( 4304 null, userHandle, parent) 4305 && policy.mActivePasswordMetrics.numeric >= getPasswordMinimumNumeric( 4306 null, userHandle, parent) 4307 && policy.mActivePasswordMetrics.symbols >= getPasswordMinimumSymbols( 4308 null, userHandle, parent) 4309 && policy.mActivePasswordMetrics.nonLetter >= getPasswordMinimumNonLetter( 4310 null, userHandle, parent); 4311 } 4312 4313 @Override 4314 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 4315 enforceFullCrossUsersPermission(userHandle); 4316 synchronized (this) { 4317 if (!isCallerWithSystemUid()) { 4318 // This API can only be called by an active device admin, 4319 // so try to retrieve it to check that the caller is one. 4320 getActiveAdminForCallerLocked( 4321 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4322 } 4323 4324 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 4325 4326 return policy.mFailedPasswordAttempts; 4327 } 4328 } 4329 4330 @Override 4331 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 4332 if (!mHasFeature) { 4333 return; 4334 } 4335 Preconditions.checkNotNull(who, "ComponentName is null"); 4336 synchronized (this) { 4337 // This API can only be called by an active device admin, 4338 // so try to retrieve it to check that the caller is one. 4339 getActiveAdminForCallerLocked( 4340 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 4341 ActiveAdmin ap = getActiveAdminForCallerLocked( 4342 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4343 if (ap.maximumFailedPasswordsForWipe != num) { 4344 ap.maximumFailedPasswordsForWipe = num; 4345 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4346 } 4347 } 4348 } 4349 4350 @Override 4351 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 4352 if (!mHasFeature) { 4353 return 0; 4354 } 4355 enforceFullCrossUsersPermission(userHandle); 4356 synchronized (this) { 4357 ActiveAdmin admin = (who != null) 4358 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 4359 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 4360 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 4361 } 4362 } 4363 4364 @Override 4365 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 4366 if (!mHasFeature) { 4367 return UserHandle.USER_NULL; 4368 } 4369 enforceFullCrossUsersPermission(userHandle); 4370 synchronized (this) { 4371 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4372 userHandle, parent); 4373 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 4374 } 4375 } 4376 4377 /** 4378 * Returns the admin with the strictest policy on maximum failed passwords for: 4379 * <ul> 4380 * <li>this user if it has a separate profile challenge, or 4381 * <li>this user and all profiles that don't have their own challenge otherwise. 4382 * </ul> 4383 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 4384 * the primary profile. 4385 * Returns {@code null} if no participating admin has that policy set. 4386 */ 4387 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 4388 int userHandle, boolean parent) { 4389 int count = 0; 4390 ActiveAdmin strictestAdmin = null; 4391 4392 // Return the strictest policy across all participating admins. 4393 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4394 final int N = admins.size(); 4395 for (int i = 0; i < N; i++) { 4396 ActiveAdmin admin = admins.get(i); 4397 if (admin.maximumFailedPasswordsForWipe == 4398 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 4399 continue; // No max number of failed passwords policy set for this profile. 4400 } 4401 4402 // We always favor the primary profile if several profiles have the same value set. 4403 int userId = admin.getUserHandle().getIdentifier(); 4404 if (count == 0 || 4405 count > admin.maximumFailedPasswordsForWipe || 4406 (count == admin.maximumFailedPasswordsForWipe && 4407 getUserInfo(userId).isPrimary())) { 4408 count = admin.maximumFailedPasswordsForWipe; 4409 strictestAdmin = admin; 4410 } 4411 } 4412 return strictestAdmin; 4413 } 4414 4415 private UserInfo getUserInfo(@UserIdInt int userId) { 4416 final long token = mInjector.binderClearCallingIdentity(); 4417 try { 4418 return mUserManager.getUserInfo(userId); 4419 } finally { 4420 mInjector.binderRestoreCallingIdentity(token); 4421 } 4422 } 4423 4424 @Override 4425 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 4426 final int callingUid = mInjector.binderGetCallingUid(); 4427 final int userHandle = mInjector.userHandleGetCallingUserId(); 4428 4429 String password = passwordOrNull != null ? passwordOrNull : ""; 4430 4431 // Password resetting to empty/null is not allowed for managed profiles. 4432 if (TextUtils.isEmpty(password)) { 4433 enforceNotManagedProfile(userHandle, "clear the active password"); 4434 } 4435 4436 synchronized (this) { 4437 // If caller has PO (or DO) it can change the password, so see if that's the case first. 4438 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 4439 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 4440 final boolean preN; 4441 if (admin != null) { 4442 final int targetSdk = getTargetSdk(admin.info.getPackageName(), userHandle); 4443 if (targetSdk >= Build.VERSION_CODES.O) { 4444 throw new SecurityException("resetPassword() is deprecated for DPC targeting O" 4445 + " or later"); 4446 } 4447 preN = targetSdk <= android.os.Build.VERSION_CODES.M; 4448 } else { 4449 // Otherwise, make sure the caller has any active admin with the right policy. 4450 admin = getActiveAdminForCallerLocked(null, 4451 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 4452 preN = getTargetSdk(admin.info.getPackageName(), 4453 userHandle) <= android.os.Build.VERSION_CODES.M; 4454 4455 // As of N, password resetting to empty/null is not allowed anymore. 4456 // TODO Should we allow DO/PO to set an empty password? 4457 if (TextUtils.isEmpty(password)) { 4458 if (!preN) { 4459 throw new SecurityException("Cannot call with null password"); 4460 } else { 4461 Slog.e(LOG_TAG, "Cannot call with null password"); 4462 return false; 4463 } 4464 } 4465 // As of N, password cannot be changed by the admin if it is already set. 4466 if (isLockScreenSecureUnchecked(userHandle)) { 4467 if (!preN) { 4468 throw new SecurityException("Admin cannot change current password"); 4469 } else { 4470 Slog.e(LOG_TAG, "Admin cannot change current password"); 4471 return false; 4472 } 4473 } 4474 } 4475 // Do not allow to reset password when current user has a managed profile 4476 if (!isManagedProfile(userHandle)) { 4477 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4478 if (userInfo.isManagedProfile()) { 4479 if (!preN) { 4480 throw new IllegalStateException( 4481 "Cannot reset password on user has managed profile"); 4482 } else { 4483 Slog.e(LOG_TAG, "Cannot reset password on user has managed profile"); 4484 return false; 4485 } 4486 } 4487 } 4488 } 4489 // Do not allow to reset password when user is locked 4490 if (!mUserManager.isUserUnlocked(userHandle)) { 4491 if (!preN) { 4492 throw new IllegalStateException("Cannot reset password when user is locked"); 4493 } else { 4494 Slog.e(LOG_TAG, "Cannot reset password when user is locked"); 4495 return false; 4496 } 4497 } 4498 } 4499 4500 return resetPasswordInternal(password, 0, null, flags, callingUid, userHandle); 4501 } 4502 4503 private boolean resetPasswordInternal(String password, long tokenHandle, byte[] token, 4504 int flags, int callingUid, int userHandle) { 4505 int quality; 4506 synchronized (this) { 4507 quality = getPasswordQuality(null, userHandle, /* parent */ false); 4508 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 4509 quality = PASSWORD_QUALITY_UNSPECIFIED; 4510 } 4511 final PasswordMetrics metrics = PasswordMetrics.computeForPassword(password); 4512 if (quality != PASSWORD_QUALITY_UNSPECIFIED) { 4513 final int realQuality = metrics.quality; 4514 if (realQuality < quality 4515 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4516 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 4517 + Integer.toHexString(realQuality) 4518 + " does not meet required quality 0x" 4519 + Integer.toHexString(quality)); 4520 return false; 4521 } 4522 quality = Math.max(realQuality, quality); 4523 } 4524 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 4525 if (password.length() < length) { 4526 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 4527 + " does not meet required length " + length); 4528 return false; 4529 } 4530 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4531 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 4532 if(metrics.letters < neededLetters) { 4533 Slog.w(LOG_TAG, "resetPassword: number of letters " + metrics.letters 4534 + " does not meet required number of letters " + neededLetters); 4535 return false; 4536 } 4537 int neededNumeric = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 4538 if (metrics.numeric < neededNumeric) { 4539 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + metrics.numeric 4540 + " does not meet required number of numerical digits " 4541 + neededNumeric); 4542 return false; 4543 } 4544 int neededLowerCase = getPasswordMinimumLowerCase( 4545 null, userHandle, /* parent */ false); 4546 if (metrics.lowerCase < neededLowerCase) { 4547 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " 4548 + metrics.lowerCase 4549 + " does not meet required number of lowercase letters " 4550 + neededLowerCase); 4551 return false; 4552 } 4553 int neededUpperCase = getPasswordMinimumUpperCase( 4554 null, userHandle, /* parent */ false); 4555 if (metrics.upperCase < neededUpperCase) { 4556 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " 4557 + metrics.upperCase 4558 + " does not meet required number of uppercase letters " 4559 + neededUpperCase); 4560 return false; 4561 } 4562 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 4563 if (metrics.symbols < neededSymbols) { 4564 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + metrics.symbols 4565 + " does not meet required number of special symbols " + neededSymbols); 4566 return false; 4567 } 4568 int neededNonLetter = getPasswordMinimumNonLetter( 4569 null, userHandle, /* parent */ false); 4570 if (metrics.nonLetter < neededNonLetter) { 4571 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " 4572 + metrics.nonLetter 4573 + " does not meet required number of non-letter characters " 4574 + neededNonLetter); 4575 return false; 4576 } 4577 } 4578 4579 if (isPasswordBlacklistedInternal(userHandle, password)) { 4580 Slog.w(LOG_TAG, "resetPassword: the password is blacklisted"); 4581 return false; 4582 } 4583 } 4584 4585 DevicePolicyData policy = getUserData(userHandle); 4586 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 4587 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 4588 return false; 4589 } 4590 4591 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 4592 boolean doNotAskCredentialsOnBoot = 4593 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 4594 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 4595 setDoNotAskCredentialsOnBoot(); 4596 } 4597 4598 // Don't do this with the lock held, because it is going to call 4599 // back in to the service. 4600 final long ident = mInjector.binderClearCallingIdentity(); 4601 final boolean result; 4602 try { 4603 if (token == null) { 4604 if (!TextUtils.isEmpty(password)) { 4605 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 4606 } else { 4607 mLockPatternUtils.clearLock(null, userHandle); 4608 } 4609 result = true; 4610 } else { 4611 result = mLockPatternUtils.setLockCredentialWithToken(password, 4612 TextUtils.isEmpty(password) ? LockPatternUtils.CREDENTIAL_TYPE_NONE 4613 : LockPatternUtils.CREDENTIAL_TYPE_PASSWORD, 4614 quality, tokenHandle, token, userHandle); 4615 } 4616 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 4617 if (requireEntry) { 4618 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 4619 UserHandle.USER_ALL); 4620 } 4621 synchronized (this) { 4622 int newOwner = requireEntry ? callingUid : -1; 4623 if (policy.mPasswordOwner != newOwner) { 4624 policy.mPasswordOwner = newOwner; 4625 saveSettingsLocked(userHandle); 4626 } 4627 } 4628 } finally { 4629 mInjector.binderRestoreCallingIdentity(ident); 4630 } 4631 return result; 4632 } 4633 4634 private boolean isLockScreenSecureUnchecked(int userId) { 4635 long ident = mInjector.binderClearCallingIdentity(); 4636 try { 4637 return mLockPatternUtils.isSecure(userId); 4638 } finally { 4639 mInjector.binderRestoreCallingIdentity(ident); 4640 } 4641 } 4642 4643 private void setDoNotAskCredentialsOnBoot() { 4644 synchronized (this) { 4645 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4646 if (!policyData.doNotAskCredentialsOnBoot) { 4647 policyData.doNotAskCredentialsOnBoot = true; 4648 saveSettingsLocked(UserHandle.USER_SYSTEM); 4649 } 4650 } 4651 } 4652 4653 @Override 4654 public boolean getDoNotAskCredentialsOnBoot() { 4655 mContext.enforceCallingOrSelfPermission( 4656 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 4657 synchronized (this) { 4658 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4659 return policyData.doNotAskCredentialsOnBoot; 4660 } 4661 } 4662 4663 @Override 4664 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 4665 if (!mHasFeature) { 4666 return; 4667 } 4668 Preconditions.checkNotNull(who, "ComponentName is null"); 4669 final int userHandle = mInjector.userHandleGetCallingUserId(); 4670 synchronized (this) { 4671 ActiveAdmin ap = getActiveAdminForCallerLocked( 4672 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4673 if (ap.maximumTimeToUnlock != timeMs) { 4674 ap.maximumTimeToUnlock = timeMs; 4675 saveSettingsLocked(userHandle); 4676 updateMaximumTimeToLockLocked(userHandle); 4677 } 4678 } 4679 } 4680 4681 private void updateMaximumTimeToLockLocked(@UserIdInt int userId) { 4682 // Update the profile's timeout 4683 if (isManagedProfile(userId)) { 4684 updateProfileLockTimeoutLocked(userId); 4685 } 4686 4687 final long timeMs; 4688 final long ident = mInjector.binderClearCallingIdentity(); 4689 try { 4690 // Update the device timeout 4691 final int parentId = getProfileParentId(userId); 4692 timeMs = getMaximumTimeToLockPolicyFromAdmins( 4693 getActiveAdminsForLockscreenPoliciesLocked(parentId, false)); 4694 4695 final DevicePolicyData policy = getUserDataUnchecked(parentId); 4696 if (policy.mLastMaximumTimeToLock == timeMs) { 4697 return; 4698 } 4699 policy.mLastMaximumTimeToLock = timeMs; 4700 4701 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 4702 // Make sure KEEP_SCREEN_ON is disabled, since that 4703 // would allow bypassing of the maximum time to lock. 4704 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 4705 } 4706 } finally { 4707 mInjector.binderRestoreCallingIdentity(ident); 4708 } 4709 4710 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4711 UserHandle.USER_SYSTEM, timeMs); 4712 } 4713 4714 private void updateProfileLockTimeoutLocked(@UserIdInt int userId) { 4715 final long timeMs; 4716 if (isSeparateProfileChallengeEnabled(userId)) { 4717 timeMs = getMaximumTimeToLockPolicyFromAdmins( 4718 getActiveAdminsForLockscreenPoliciesLocked(userId, false /* parent */)); 4719 } else { 4720 timeMs = Long.MAX_VALUE; 4721 } 4722 4723 final DevicePolicyData policy = getUserDataUnchecked(userId); 4724 if (policy.mLastMaximumTimeToLock == timeMs) { 4725 return; 4726 } 4727 policy.mLastMaximumTimeToLock = timeMs; 4728 4729 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4730 userId, policy.mLastMaximumTimeToLock); 4731 } 4732 4733 @Override 4734 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 4735 if (!mHasFeature) { 4736 return 0; 4737 } 4738 enforceFullCrossUsersPermission(userHandle); 4739 synchronized (this) { 4740 if (who != null) { 4741 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4742 return admin != null ? admin.maximumTimeToUnlock : 0; 4743 } 4744 // Return the strictest policy across all participating admins. 4745 final List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4746 userHandle, parent); 4747 final long timeMs = getMaximumTimeToLockPolicyFromAdmins(admins); 4748 return timeMs == Long.MAX_VALUE ? 0 : timeMs; 4749 } 4750 } 4751 4752 private long getMaximumTimeToLockPolicyFromAdmins(List<ActiveAdmin> admins) { 4753 long time = Long.MAX_VALUE; 4754 for (final ActiveAdmin admin : admins) { 4755 if (admin.maximumTimeToUnlock > 0 && admin.maximumTimeToUnlock < time) { 4756 time = admin.maximumTimeToUnlock; 4757 } 4758 } 4759 return time; 4760 } 4761 4762 @Override 4763 public void setRequiredStrongAuthTimeout(ComponentName who, long timeoutMs, 4764 boolean parent) { 4765 if (!mHasFeature) { 4766 return; 4767 } 4768 Preconditions.checkNotNull(who, "ComponentName is null"); 4769 Preconditions.checkArgument(timeoutMs >= 0, "Timeout must not be a negative number."); 4770 // timeoutMs with value 0 means that the admin doesn't participate 4771 // timeoutMs is clamped to the interval in case the internal constants change in the future 4772 final long minimumStrongAuthTimeout = getMinimumStrongAuthTimeoutMs(); 4773 if (timeoutMs != 0 && timeoutMs < minimumStrongAuthTimeout) { 4774 timeoutMs = minimumStrongAuthTimeout; 4775 } 4776 if (timeoutMs > DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 4777 timeoutMs = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4778 } 4779 4780 final int userHandle = mInjector.userHandleGetCallingUserId(); 4781 synchronized (this) { 4782 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4783 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 4784 if (ap.strongAuthUnlockTimeout != timeoutMs) { 4785 ap.strongAuthUnlockTimeout = timeoutMs; 4786 saveSettingsLocked(userHandle); 4787 } 4788 } 4789 } 4790 4791 /** 4792 * Return a single admin's strong auth unlock timeout or minimum value (strictest) of all 4793 * admins if who is null. 4794 * Returns 0 if not configured for the provided admin. 4795 */ 4796 @Override 4797 public long getRequiredStrongAuthTimeout(ComponentName who, int userId, boolean parent) { 4798 if (!mHasFeature) { 4799 return DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4800 } 4801 enforceFullCrossUsersPermission(userId); 4802 synchronized (this) { 4803 if (who != null) { 4804 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId, parent); 4805 return admin != null ? admin.strongAuthUnlockTimeout : 0; 4806 } 4807 4808 // Return the strictest policy across all participating admins. 4809 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userId, parent); 4810 4811 long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4812 for (int i = 0; i < admins.size(); i++) { 4813 final long timeout = admins.get(i).strongAuthUnlockTimeout; 4814 if (timeout != 0) { // take only participating admins into account 4815 strongAuthUnlockTimeout = Math.min(timeout, strongAuthUnlockTimeout); 4816 } 4817 } 4818 return Math.max(strongAuthUnlockTimeout, getMinimumStrongAuthTimeoutMs()); 4819 } 4820 } 4821 4822 private long getMinimumStrongAuthTimeoutMs() { 4823 if (!mInjector.isBuildDebuggable()) { 4824 return MINIMUM_STRONG_AUTH_TIMEOUT_MS; 4825 } 4826 // ideally the property was named persist.sys.min_strong_auth_timeout, but system property 4827 // name cannot be longer than 31 characters 4828 return Math.min(mInjector.systemPropertiesGetLong("persist.sys.min_str_auth_timeo", 4829 MINIMUM_STRONG_AUTH_TIMEOUT_MS), 4830 MINIMUM_STRONG_AUTH_TIMEOUT_MS); 4831 } 4832 4833 @Override 4834 public void lockNow(int flags, boolean parent) { 4835 if (!mHasFeature) { 4836 return; 4837 } 4838 4839 final int callingUserId = mInjector.userHandleGetCallingUserId(); 4840 synchronized (this) { 4841 // This API can only be called by an active device admin, 4842 // so try to retrieve it to check that the caller is one. 4843 final ActiveAdmin admin = getActiveAdminForCallerLocked( 4844 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4845 4846 final long ident = mInjector.binderClearCallingIdentity(); 4847 try { 4848 // Evict key 4849 if ((flags & DevicePolicyManager.FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY) != 0) { 4850 enforceManagedProfile( 4851 callingUserId, "set FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY"); 4852 if (!isProfileOwner(admin.info.getComponent(), callingUserId)) { 4853 throw new SecurityException("Only profile owner admins can set " 4854 + "FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY"); 4855 } 4856 if (parent) { 4857 throw new IllegalArgumentException( 4858 "Cannot set FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY for the parent"); 4859 } 4860 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 4861 throw new UnsupportedOperationException( 4862 "FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY only applies to FBE devices"); 4863 } 4864 mUserManager.evictCredentialEncryptionKey(callingUserId); 4865 } 4866 4867 // Lock all users unless this is a managed profile with a separate challenge 4868 final int userToLock = (parent || !isSeparateProfileChallengeEnabled(callingUserId) 4869 ? UserHandle.USER_ALL : callingUserId); 4870 mLockPatternUtils.requireStrongAuth( 4871 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 4872 4873 // Require authentication for the device or profile 4874 if (userToLock == UserHandle.USER_ALL) { 4875 // Power off the display 4876 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 4877 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 4878 mInjector.getIWindowManager().lockNow(null); 4879 } else { 4880 mInjector.getTrustManager().setDeviceLockedForUser(userToLock, true); 4881 } 4882 } catch (RemoteException e) { 4883 } finally { 4884 mInjector.binderRestoreCallingIdentity(ident); 4885 } 4886 } 4887 } 4888 4889 @Override 4890 public void enforceCanManageCaCerts(ComponentName who, String callerPackage) { 4891 if (who == null) { 4892 if (!isCallerDelegate(callerPackage, DELEGATION_CERT_INSTALL)) { 4893 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 4894 } 4895 } else { 4896 enforceProfileOrDeviceOwner(who); 4897 } 4898 } 4899 4900 private void enforceProfileOrDeviceOwner(ComponentName who) { 4901 synchronized (this) { 4902 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4903 } 4904 } 4905 4906 @Override 4907 public boolean approveCaCert(String alias, int userId, boolean approval) { 4908 enforceManageUsers(); 4909 synchronized (this) { 4910 Set<String> certs = getUserData(userId).mAcceptedCaCertificates; 4911 boolean changed = (approval ? certs.add(alias) : certs.remove(alias)); 4912 if (!changed) { 4913 return false; 4914 } 4915 saveSettingsLocked(userId); 4916 } 4917 mCertificateMonitor.onCertificateApprovalsChanged(userId); 4918 return true; 4919 } 4920 4921 @Override 4922 public boolean isCaCertApproved(String alias, int userId) { 4923 enforceManageUsers(); 4924 synchronized (this) { 4925 return getUserData(userId).mAcceptedCaCertificates.contains(alias); 4926 } 4927 } 4928 4929 private void removeCaApprovalsIfNeeded(int userId) { 4930 for (UserInfo userInfo : mUserManager.getProfiles(userId)) { 4931 boolean isSecure = mLockPatternUtils.isSecure(userInfo.id); 4932 if (userInfo.isManagedProfile()){ 4933 isSecure |= mLockPatternUtils.isSecure(getProfileParentId(userInfo.id)); 4934 } 4935 if (!isSecure) { 4936 synchronized (this) { 4937 getUserData(userInfo.id).mAcceptedCaCertificates.clear(); 4938 saveSettingsLocked(userInfo.id); 4939 } 4940 mCertificateMonitor.onCertificateApprovalsChanged(userId); 4941 } 4942 } 4943 } 4944 4945 @Override 4946 public boolean installCaCert(ComponentName admin, String callerPackage, byte[] certBuffer) 4947 throws RemoteException { 4948 if (!mHasFeature) { 4949 return false; 4950 } 4951 enforceCanManageCaCerts(admin, callerPackage); 4952 4953 final String alias; 4954 4955 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 4956 final long id = mInjector.binderClearCallingIdentity(); 4957 try { 4958 alias = mCertificateMonitor.installCaCert(userHandle, certBuffer); 4959 if (alias == null) { 4960 Log.w(LOG_TAG, "Problem installing cert"); 4961 return false; 4962 } 4963 } finally { 4964 mInjector.binderRestoreCallingIdentity(id); 4965 } 4966 4967 synchronized (this) { 4968 getUserData(userHandle.getIdentifier()).mOwnerInstalledCaCerts.add(alias); 4969 saveSettingsLocked(userHandle.getIdentifier()); 4970 } 4971 return true; 4972 } 4973 4974 @Override 4975 public void uninstallCaCerts(ComponentName admin, String callerPackage, String[] aliases) { 4976 if (!mHasFeature) { 4977 return; 4978 } 4979 enforceCanManageCaCerts(admin, callerPackage); 4980 4981 final int userId = mInjector.userHandleGetCallingUserId(); 4982 final long id = mInjector.binderClearCallingIdentity(); 4983 try { 4984 mCertificateMonitor.uninstallCaCerts(UserHandle.of(userId), aliases); 4985 } finally { 4986 mInjector.binderRestoreCallingIdentity(id); 4987 } 4988 4989 synchronized (this) { 4990 if (getUserData(userId).mOwnerInstalledCaCerts.removeAll(Arrays.asList(aliases))) { 4991 saveSettingsLocked(userId); 4992 } 4993 } 4994 } 4995 4996 @Override 4997 public boolean installKeyPair(ComponentName who, String callerPackage, byte[] privKey, 4998 byte[] cert, byte[] chain, String alias, boolean requestAccess, 4999 boolean isUserSelectable) { 5000 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5001 DELEGATION_CERT_INSTALL); 5002 5003 5004 final int callingUid = mInjector.binderGetCallingUid(); 5005 final long id = mInjector.binderClearCallingIdentity(); 5006 try { 5007 final KeyChainConnection keyChainConnection = 5008 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 5009 try { 5010 IKeyChainService keyChain = keyChainConnection.getService(); 5011 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) { 5012 return false; 5013 } 5014 if (requestAccess) { 5015 keyChain.setGrant(callingUid, alias, true); 5016 } 5017 keyChain.setUserSelectable(alias, isUserSelectable); 5018 return true; 5019 } catch (RemoteException e) { 5020 Log.e(LOG_TAG, "Installing certificate", e); 5021 } finally { 5022 keyChainConnection.close(); 5023 } 5024 } catch (InterruptedException e) { 5025 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 5026 Thread.currentThread().interrupt(); 5027 } finally { 5028 mInjector.binderRestoreCallingIdentity(id); 5029 } 5030 return false; 5031 } 5032 5033 @Override 5034 public boolean removeKeyPair(ComponentName who, String callerPackage, String alias) { 5035 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5036 DELEGATION_CERT_INSTALL); 5037 5038 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5039 final long id = Binder.clearCallingIdentity(); 5040 try { 5041 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 5042 try { 5043 IKeyChainService keyChain = keyChainConnection.getService(); 5044 return keyChain.removeKeyPair(alias); 5045 } catch (RemoteException e) { 5046 Log.e(LOG_TAG, "Removing keypair", e); 5047 } finally { 5048 keyChainConnection.close(); 5049 } 5050 } catch (InterruptedException e) { 5051 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 5052 Thread.currentThread().interrupt(); 5053 } finally { 5054 Binder.restoreCallingIdentity(id); 5055 } 5056 return false; 5057 } 5058 5059 private void enforceIsDeviceOwnerOrCertInstallerOfDeviceOwner( 5060 ComponentName who, String callerPackage, int callerUid) throws SecurityException { 5061 if (who == null) { 5062 if (!mOwners.hasDeviceOwner()) { 5063 throw new SecurityException("Not in Device Owner mode."); 5064 } 5065 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 5066 throw new SecurityException("Caller not from device owner user"); 5067 } 5068 if (!isCallerDelegate(callerPackage, DELEGATION_CERT_INSTALL)) { 5069 throw new SecurityException("Caller with uid " + mInjector.binderGetCallingUid() + 5070 "has no permission to generate keys."); 5071 } 5072 } else { 5073 // Caller provided - check it is the device owner. 5074 synchronized (this) { 5075 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5076 } 5077 } 5078 } 5079 5080 @VisibleForTesting 5081 public static int[] translateIdAttestationFlags( 5082 int idAttestationFlags) { 5083 Map<Integer, Integer> idTypeToAttestationFlag = new HashMap(); 5084 idTypeToAttestationFlag.put(ID_TYPE_SERIAL, AttestationUtils.ID_TYPE_SERIAL); 5085 idTypeToAttestationFlag.put(ID_TYPE_IMEI, AttestationUtils.ID_TYPE_IMEI); 5086 idTypeToAttestationFlag.put(ID_TYPE_MEID, AttestationUtils.ID_TYPE_MEID); 5087 5088 int numFlagsSet = Integer.bitCount(idAttestationFlags); 5089 // No flags are set - return null to indicate no device ID attestation information should 5090 // be included in the attestation record. 5091 if (numFlagsSet == 0) { 5092 return null; 5093 } 5094 5095 // If the ID_TYPE_BASE_INFO is set, make sure that a non-null array is returned, even if 5096 // no other flag is set. That will lead to inclusion of general device make data in the 5097 // attestation record, but no specific device identifiers. 5098 if ((idAttestationFlags & ID_TYPE_BASE_INFO) != 0) { 5099 numFlagsSet -= 1; 5100 idAttestationFlags = idAttestationFlags & (~ID_TYPE_BASE_INFO); 5101 } 5102 5103 int[] attestationUtilsFlags = new int[numFlagsSet]; 5104 int i = 0; 5105 for (Integer idType: idTypeToAttestationFlag.keySet()) { 5106 if ((idType & idAttestationFlags) != 0) { 5107 attestationUtilsFlags[i++] = idTypeToAttestationFlag.get(idType); 5108 } 5109 } 5110 5111 return attestationUtilsFlags; 5112 } 5113 5114 @Override 5115 public boolean generateKeyPair(ComponentName who, String callerPackage, String algorithm, 5116 ParcelableKeyGenParameterSpec parcelableKeySpec, 5117 int idAttestationFlags, 5118 KeymasterCertificateChain attestationChain) { 5119 // Get attestation flags, if any. 5120 final int[] attestationUtilsFlags = translateIdAttestationFlags(idAttestationFlags); 5121 final boolean deviceIdAttestationRequired = attestationUtilsFlags != null; 5122 final int callingUid = mInjector.binderGetCallingUid(); 5123 5124 if (deviceIdAttestationRequired && attestationUtilsFlags.length > 0) { 5125 enforceIsDeviceOwnerOrCertInstallerOfDeviceOwner(who, callerPackage, callingUid); 5126 } else { 5127 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5128 DELEGATION_CERT_INSTALL); 5129 } 5130 final KeyGenParameterSpec keySpec = parcelableKeySpec.getSpec(); 5131 final String alias = keySpec.getKeystoreAlias(); 5132 if (TextUtils.isEmpty(alias)) { 5133 throw new IllegalArgumentException("Empty alias provided."); 5134 } 5135 // As the caller will be granted access to the key, ensure no UID was specified, as 5136 // it will not have the desired effect. 5137 if (keySpec.getUid() != KeyStore.UID_SELF) { 5138 Log.e(LOG_TAG, "Only the caller can be granted access to the generated keypair."); 5139 return false; 5140 } 5141 5142 if (deviceIdAttestationRequired && (keySpec.getAttestationChallenge() == null)) { 5143 throw new IllegalArgumentException( 5144 "Requested Device ID attestation but challenge is empty."); 5145 } 5146 5147 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 5148 final long id = mInjector.binderClearCallingIdentity(); 5149 try { 5150 try (KeyChainConnection keyChainConnection = 5151 KeyChain.bindAsUser(mContext, userHandle)) { 5152 IKeyChainService keyChain = keyChainConnection.getService(); 5153 5154 // Copy the provided keySpec, excluding the attestation challenge, which will be 5155 // used later for requesting key attestation record. 5156 final KeyGenParameterSpec noAttestationSpec = 5157 new KeyGenParameterSpec.Builder(keySpec) 5158 .setAttestationChallenge(null) 5159 .build(); 5160 5161 final boolean generationResult = keyChain.generateKeyPair(algorithm, 5162 new ParcelableKeyGenParameterSpec(noAttestationSpec)); 5163 if (!generationResult) { 5164 Log.e(LOG_TAG, "KeyChain failed to generate a keypair."); 5165 return false; 5166 } 5167 5168 // Set a grant for the caller here so that when the client calls 5169 // requestPrivateKey, it will be able to get the key from Keystore. 5170 // Note the use of the calling UID, since the request for the private 5171 // key will come from the client's process, so the grant has to be for 5172 // that UID. 5173 keyChain.setGrant(callingUid, alias, true); 5174 5175 final byte[] attestationChallenge = keySpec.getAttestationChallenge(); 5176 if (attestationChallenge != null) { 5177 final boolean attestationResult = keyChain.attestKey( 5178 alias, attestationChallenge, attestationUtilsFlags, attestationChain); 5179 if (!attestationResult) { 5180 Log.e(LOG_TAG, String.format( 5181 "Attestation for %s failed, deleting key.", alias)); 5182 keyChain.removeKeyPair(alias); 5183 return false; 5184 } 5185 } 5186 return true; 5187 } 5188 } catch (RemoteException e) { 5189 Log.e(LOG_TAG, "KeyChain error while generating a keypair", e); 5190 } catch (InterruptedException e) { 5191 Log.w(LOG_TAG, "Interrupted while generating keypair", e); 5192 Thread.currentThread().interrupt(); 5193 } finally { 5194 mInjector.binderRestoreCallingIdentity(id); 5195 } 5196 return false; 5197 } 5198 5199 @Override 5200 public boolean setKeyPairCertificate(ComponentName who, String callerPackage, String alias, 5201 byte[] cert, byte[] chain, boolean isUserSelectable) { 5202 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5203 DELEGATION_CERT_INSTALL); 5204 5205 final int callingUid = mInjector.binderGetCallingUid(); 5206 final long id = mInjector.binderClearCallingIdentity(); 5207 try (final KeyChainConnection keyChainConnection = 5208 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid))) { 5209 IKeyChainService keyChain = keyChainConnection.getService(); 5210 if (!keyChain.setKeyPairCertificate(alias, cert, chain)) { 5211 return false; 5212 } 5213 keyChain.setUserSelectable(alias, isUserSelectable); 5214 return true; 5215 } catch (InterruptedException e) { 5216 Log.w(LOG_TAG, "Interrupted while setting keypair certificate", e); 5217 Thread.currentThread().interrupt(); 5218 } catch (RemoteException e) { 5219 Log.e(LOG_TAG, "Failed setting keypair certificate", e); 5220 } finally { 5221 mInjector.binderRestoreCallingIdentity(id); 5222 } 5223 return false; 5224 } 5225 5226 @Override 5227 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 5228 final IBinder response) { 5229 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 5230 if (!isCallerWithSystemUid()) { 5231 return; 5232 } 5233 5234 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 5235 // If there is a profile owner, redirect to that; otherwise query the device owner. 5236 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 5237 if (aliasChooser == null && caller.isSystem()) { 5238 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 5239 if (deviceOwnerAdmin != null) { 5240 aliasChooser = deviceOwnerAdmin.info.getComponent(); 5241 } 5242 } 5243 if (aliasChooser == null) { 5244 sendPrivateKeyAliasResponse(null, response); 5245 return; 5246 } 5247 5248 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 5249 intent.setComponent(aliasChooser); 5250 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 5251 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 5252 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 5253 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 5254 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 5255 5256 final long id = mInjector.binderClearCallingIdentity(); 5257 try { 5258 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 5259 @Override 5260 public void onReceive(Context context, Intent intent) { 5261 final String chosenAlias = getResultData(); 5262 sendPrivateKeyAliasResponse(chosenAlias, response); 5263 } 5264 }, null, Activity.RESULT_OK, null, null); 5265 } finally { 5266 mInjector.binderRestoreCallingIdentity(id); 5267 } 5268 } 5269 5270 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 5271 final IKeyChainAliasCallback keyChainAliasResponse = 5272 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 5273 // Send the response. It's OK to do this from the main thread because IKeyChainAliasCallback 5274 // is oneway, which means it won't block if the recipient lives in another process. 5275 try { 5276 keyChainAliasResponse.alias(alias); 5277 } catch (Exception e) { 5278 // Caller could throw RuntimeException or RemoteException back across processes. Catch 5279 // everything just to be sure. 5280 Log.e(LOG_TAG, "error while responding to callback", e); 5281 } 5282 } 5283 5284 /** 5285 * Determine whether DPMS should check if a delegate package is already installed before 5286 * granting it new delegations via {@link #setDelegatedScopes}. 5287 */ 5288 private static boolean shouldCheckIfDelegatePackageIsInstalled(String delegatePackage, 5289 int targetSdk, List<String> scopes) { 5290 // 1) Never skip is installed check from N. 5291 if (targetSdk >= Build.VERSION_CODES.N) { 5292 return true; 5293 } 5294 // 2) Skip if DELEGATION_CERT_INSTALL is the only scope being given. 5295 if (scopes.size() == 1 && scopes.get(0).equals(DELEGATION_CERT_INSTALL)) { 5296 return false; 5297 } 5298 // 3) Skip if all previously granted scopes are being cleared. 5299 if (scopes.isEmpty()) { 5300 return false; 5301 } 5302 // Otherwise it should check that delegatePackage is installed. 5303 return true; 5304 } 5305 5306 /** 5307 * Set the scopes of a device owner or profile owner delegate. 5308 * 5309 * @param who the device owner or profile owner. 5310 * @param delegatePackage the name of the delegate package. 5311 * @param scopes the list of delegation scopes to be given to the delegate package. 5312 */ 5313 @Override 5314 public void setDelegatedScopes(ComponentName who, String delegatePackage, 5315 List<String> scopes) throws SecurityException { 5316 Preconditions.checkNotNull(who, "ComponentName is null"); 5317 Preconditions.checkStringNotEmpty(delegatePackage, "Delegate package is null or empty"); 5318 Preconditions.checkCollectionElementsNotNull(scopes, "Scopes"); 5319 // Remove possible duplicates. 5320 scopes = new ArrayList(new ArraySet(scopes)); 5321 // Ensure given scopes are valid. 5322 if (scopes.retainAll(Arrays.asList(DELEGATIONS))) { 5323 throw new IllegalArgumentException("Unexpected delegation scopes"); 5324 } 5325 5326 // Retrieve the user ID of the calling process. 5327 final int userId = mInjector.userHandleGetCallingUserId(); 5328 synchronized (this) { 5329 // Ensure calling process is device/profile owner. 5330 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5331 // Ensure the delegate is installed (skip this for DELEGATION_CERT_INSTALL in pre-N). 5332 if (shouldCheckIfDelegatePackageIsInstalled(delegatePackage, 5333 getTargetSdk(who.getPackageName(), userId), scopes)) { 5334 // Throw when the delegate package is not installed. 5335 if (!isPackageInstalledForUser(delegatePackage, userId)) { 5336 throw new IllegalArgumentException("Package " + delegatePackage 5337 + " is not installed on the current user"); 5338 } 5339 } 5340 5341 // Set the new delegate in user policies. 5342 final DevicePolicyData policy = getUserData(userId); 5343 if (!scopes.isEmpty()) { 5344 policy.mDelegationMap.put(delegatePackage, new ArrayList<>(scopes)); 5345 } else { 5346 // Remove any delegation info if the given scopes list is empty. 5347 policy.mDelegationMap.remove(delegatePackage); 5348 } 5349 5350 // Notify delegate package of updates. 5351 final Intent intent = new Intent( 5352 DevicePolicyManager.ACTION_APPLICATION_DELEGATION_SCOPES_CHANGED); 5353 // Only call receivers registered with Context#registerReceiver (don’t wake delegate). 5354 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 5355 // Limit components this intent resolves to to the delegate package. 5356 intent.setPackage(delegatePackage); 5357 // Include the list of delegated scopes as an extra. 5358 intent.putStringArrayListExtra(DevicePolicyManager.EXTRA_DELEGATION_SCOPES, 5359 (ArrayList<String>) scopes); 5360 // Send the broadcast. 5361 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 5362 5363 // Persist updates. 5364 saveSettingsLocked(userId); 5365 } 5366 } 5367 5368 /** 5369 * Get the delegation scopes given to a delegate package by a device owner or profile owner. 5370 * 5371 * A DO/PO can get the scopes of any package. A non DO/PO package can get its own scopes by 5372 * passing in {@code null} as the {@code who} parameter and its own name as the 5373 * {@code delegatepackage}. 5374 * 5375 * @param who the device owner or profile owner, or {@code null} if the caller is 5376 * {@code delegatePackage}. 5377 * @param delegatePackage the name of the delegate package whose scopes are to be retrieved. 5378 * @return a list of the delegation scopes currently given to {@code delegatePackage}. 5379 */ 5380 @Override 5381 @NonNull 5382 public List<String> getDelegatedScopes(ComponentName who, 5383 String delegatePackage) throws SecurityException { 5384 Preconditions.checkNotNull(delegatePackage, "Delegate package is null"); 5385 5386 // Retrieve the user ID of the calling process. 5387 final int callingUid = mInjector.binderGetCallingUid(); 5388 final int userId = UserHandle.getUserId(callingUid); 5389 synchronized (this) { 5390 // Ensure calling process is device/profile owner. 5391 if (who != null) { 5392 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5393 // Or ensure calling process is delegatePackage itself. 5394 } else { 5395 int uid = 0; 5396 try { 5397 uid = mInjector.getPackageManager() 5398 .getPackageUidAsUser(delegatePackage, userId); 5399 } catch(NameNotFoundException e) { 5400 } 5401 if (uid != callingUid) { 5402 throw new SecurityException("Caller with uid " + callingUid + " is not " 5403 + delegatePackage); 5404 } 5405 } 5406 final DevicePolicyData policy = getUserData(userId); 5407 // Retrieve the scopes assigned to delegatePackage, or null if no scope was given. 5408 final List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5409 return scopes == null ? Collections.EMPTY_LIST : scopes; 5410 } 5411 } 5412 5413 /** 5414 * Get a list of packages that were given a specific delegation scopes by a device owner or 5415 * profile owner. 5416 * 5417 * @param who the device owner or profile owner. 5418 * @param scope the scope whose delegates are to be retrieved. 5419 * @return a list of the delegate packages currently given the {@code scope} delegation. 5420 */ 5421 @NonNull 5422 public List<String> getDelegatePackages(ComponentName who, String scope) 5423 throws SecurityException { 5424 Preconditions.checkNotNull(who, "ComponentName is null"); 5425 Preconditions.checkNotNull(scope, "Scope is null"); 5426 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5427 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5428 } 5429 5430 // Retrieve the user ID of the calling process. 5431 final int userId = mInjector.userHandleGetCallingUserId(); 5432 synchronized (this) { 5433 // Ensure calling process is device/profile owner. 5434 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5435 final DevicePolicyData policy = getUserData(userId); 5436 5437 // Create a list to hold the resulting delegate packages. 5438 final List<String> delegatePackagesWithScope = new ArrayList<>(); 5439 // Add all delegations containing scope to the result list. 5440 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5441 if (policy.mDelegationMap.valueAt(i).contains(scope)) { 5442 delegatePackagesWithScope.add(policy.mDelegationMap.keyAt(i)); 5443 } 5444 } 5445 return delegatePackagesWithScope; 5446 } 5447 } 5448 5449 /** 5450 * Check whether a caller application has been delegated a given scope via 5451 * {@link #setDelegatedScopes} to access privileged APIs on the behalf of a profile owner or 5452 * device owner. 5453 * <p> 5454 * This is done by checking that {@code callerPackage} was granted {@code scope} delegation and 5455 * then comparing the calling UID with the UID of {@code callerPackage} as reported by 5456 * {@link PackageManager#getPackageUidAsUser}. 5457 * 5458 * @param callerPackage the name of the package that is trying to invoke a function in the DPMS. 5459 * @param scope the delegation scope to be checked. 5460 * @return {@code true} if the calling process is a delegate of {@code scope}. 5461 */ 5462 private boolean isCallerDelegate(String callerPackage, String scope) { 5463 Preconditions.checkNotNull(callerPackage, "callerPackage is null"); 5464 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5465 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5466 } 5467 5468 // Retrieve the UID and user ID of the calling process. 5469 final int callingUid = mInjector.binderGetCallingUid(); 5470 final int userId = UserHandle.getUserId(callingUid); 5471 synchronized (this) { 5472 // Retrieve user policy data. 5473 final DevicePolicyData policy = getUserData(userId); 5474 // Retrieve the list of delegation scopes granted to callerPackage. 5475 final List<String> scopes = policy.mDelegationMap.get(callerPackage); 5476 // Check callingUid only if callerPackage has the required scope delegation. 5477 if (scopes != null && scopes.contains(scope)) { 5478 try { 5479 // Retrieve the expected UID for callerPackage. 5480 final int uid = mInjector.getPackageManager() 5481 .getPackageUidAsUser(callerPackage, userId); 5482 // Return true if the caller is actually callerPackage. 5483 return uid == callingUid; 5484 } catch (NameNotFoundException e) { 5485 // Ignore. 5486 } 5487 } 5488 return false; 5489 } 5490 } 5491 5492 /** 5493 * Throw a security exception if a ComponentName is given and it is not a device/profile owner 5494 * or if the calling process is not a delegate of the given scope. 5495 * 5496 * @param who the device owner of profile owner, or null if {@code callerPackage} is a 5497 * {@code scope} delegate. 5498 * @param callerPackage the name of the calling package. Required if {@code who} is 5499 * {@code null}. 5500 * @param reqPolicy the policy used in the API whose access permission is being checked. 5501 * @param scope the delegation scope corresponding to the API being checked. 5502 * @throws SecurityException if {@code who} is given and is not an owner for {@code reqPolicy}; 5503 * or when {@code who} is {@code null} and {@code callerPackage} is not a delegate 5504 * of {@code scope}. 5505 */ 5506 private void enforceCanManageScope(ComponentName who, String callerPackage, int reqPolicy, 5507 String scope) { 5508 // If a ComponentName is given ensure it is a device or profile owner according to policy. 5509 if (who != null) { 5510 synchronized (this) { 5511 getActiveAdminForCallerLocked(who, reqPolicy); 5512 } 5513 // If no ComponentName is given ensure calling process has scope delegation. 5514 } else if (!isCallerDelegate(callerPackage, scope)) { 5515 throw new SecurityException("Caller with uid " + mInjector.binderGetCallingUid() 5516 + " is not a delegate of scope " + scope + "."); 5517 } 5518 } 5519 5520 /** 5521 * Helper function to preserve delegation behavior pre-O when using the deprecated functions 5522 * {@code #setCertInstallerPackage} and {@code #setApplicationRestrictionsManagingPackage}. 5523 */ 5524 private void setDelegatedScopePreO(ComponentName who, 5525 String delegatePackage, String scope) { 5526 Preconditions.checkNotNull(who, "ComponentName is null"); 5527 5528 final int userId = mInjector.userHandleGetCallingUserId(); 5529 synchronized(this) { 5530 // Ensure calling process is device/profile owner. 5531 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5532 final DevicePolicyData policy = getUserData(userId); 5533 5534 if (delegatePackage != null) { 5535 // Set package as a delegate for scope if it is not already one. 5536 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5537 if (scopes == null) { 5538 scopes = new ArrayList<>(); 5539 } 5540 if (!scopes.contains(scope)) { 5541 scopes.add(scope); 5542 setDelegatedScopes(who, delegatePackage, scopes); 5543 } 5544 } 5545 5546 // Clear any existing scope delegates. 5547 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5548 final String currentPackage = policy.mDelegationMap.keyAt(i); 5549 final List<String> currentScopes = policy.mDelegationMap.valueAt(i); 5550 5551 if (!currentPackage.equals(delegatePackage) && currentScopes.contains(scope)) { 5552 final List<String> newScopes = new ArrayList(currentScopes); 5553 newScopes.remove(scope); 5554 setDelegatedScopes(who, currentPackage, newScopes); 5555 } 5556 } 5557 } 5558 } 5559 5560 @Override 5561 public void setCertInstallerPackage(ComponentName who, String installerPackage) 5562 throws SecurityException { 5563 setDelegatedScopePreO(who, installerPackage, DELEGATION_CERT_INSTALL); 5564 } 5565 5566 @Override 5567 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 5568 final List<String> delegatePackages = getDelegatePackages(who, DELEGATION_CERT_INSTALL); 5569 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 5570 } 5571 5572 /** 5573 * @return {@code true} if the package is installed and set as always-on, {@code false} if it is 5574 * not installed and therefore not available. 5575 * 5576 * @throws SecurityException if the caller is not a profile or device owner. 5577 * @throws UnsupportedOperationException if the package does not support being set as always-on. 5578 */ 5579 @Override 5580 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage, boolean lockdown) 5581 throws SecurityException { 5582 enforceProfileOrDeviceOwner(admin); 5583 5584 final int userId = mInjector.userHandleGetCallingUserId(); 5585 final long token = mInjector.binderClearCallingIdentity(); 5586 try { 5587 if (vpnPackage != null && !isPackageInstalledForUser(vpnPackage, userId)) { 5588 return false; 5589 } 5590 ConnectivityManager connectivityManager = (ConnectivityManager) 5591 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5592 if (!connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage, lockdown)) { 5593 throw new UnsupportedOperationException(); 5594 } 5595 } finally { 5596 mInjector.binderRestoreCallingIdentity(token); 5597 } 5598 return true; 5599 } 5600 5601 @Override 5602 public String getAlwaysOnVpnPackage(ComponentName admin) 5603 throws SecurityException { 5604 enforceProfileOrDeviceOwner(admin); 5605 5606 final int userId = mInjector.userHandleGetCallingUserId(); 5607 final long token = mInjector.binderClearCallingIdentity(); 5608 try{ 5609 ConnectivityManager connectivityManager = (ConnectivityManager) 5610 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5611 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 5612 } finally { 5613 mInjector.binderRestoreCallingIdentity(token); 5614 } 5615 } 5616 5617 private void forceWipeDeviceNoLock(boolean wipeExtRequested, String reason, boolean wipeEuicc) { 5618 wtfIfInLock(); 5619 5620 if (wipeExtRequested) { 5621 StorageManager sm = (StorageManager) mContext.getSystemService( 5622 Context.STORAGE_SERVICE); 5623 sm.wipeAdoptableDisks(); 5624 } 5625 try { 5626 mInjector.recoverySystemRebootWipeUserData( 5627 /*shutdown=*/ false, reason, /*force=*/ true, /*wipeEuicc=*/ wipeEuicc); 5628 } catch (IOException | SecurityException e) { 5629 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 5630 } 5631 } 5632 5633 private void forceWipeUser(int userId, String wipeReasonForUser) { 5634 try { 5635 IActivityManager am = mInjector.getIActivityManager(); 5636 if (am.getCurrentUser().id == userId) { 5637 am.switchUser(UserHandle.USER_SYSTEM); 5638 } 5639 5640 boolean userRemoved = mUserManagerInternal.removeUserEvenWhenDisallowed(userId); 5641 if (!userRemoved) { 5642 Slog.w(LOG_TAG, "Couldn't remove user " + userId); 5643 } else if (isManagedProfile(userId)) { 5644 sendWipeProfileNotification(wipeReasonForUser); 5645 } 5646 } catch (RemoteException re) { 5647 // Shouldn't happen 5648 } 5649 } 5650 5651 @Override 5652 public void wipeDataWithReason(int flags, String wipeReasonForUser) { 5653 if (!mHasFeature) { 5654 return; 5655 } 5656 Preconditions.checkStringNotEmpty(wipeReasonForUser, "wipeReasonForUser is null or empty"); 5657 enforceFullCrossUsersPermission(mInjector.userHandleGetCallingUserId()); 5658 5659 final ActiveAdmin admin; 5660 synchronized (this) { 5661 admin = getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_WIPE_DATA); 5662 } 5663 String internalReason = "DevicePolicyManager.wipeDataWithReason() from " 5664 + admin.info.getComponent().flattenToShortString(); 5665 wipeDataNoLock( 5666 admin.info.getComponent(), flags, internalReason, wipeReasonForUser, 5667 admin.getUserHandle().getIdentifier()); 5668 } 5669 5670 private void wipeDataNoLock(ComponentName admin, int flags, String internalReason, 5671 String wipeReasonForUser, int userId) { 5672 wtfIfInLock(); 5673 5674 long ident = mInjector.binderClearCallingIdentity(); 5675 try { 5676 // First check whether the admin is allowed to wipe the device/user/profile. 5677 final String restriction; 5678 if (userId == UserHandle.USER_SYSTEM) { 5679 restriction = UserManager.DISALLOW_FACTORY_RESET; 5680 } else if (isManagedProfile(userId)) { 5681 restriction = UserManager.DISALLOW_REMOVE_MANAGED_PROFILE; 5682 } else { 5683 restriction = UserManager.DISALLOW_REMOVE_USER; 5684 } 5685 if (isAdminAffectedByRestriction(admin, restriction, userId)) { 5686 throw new SecurityException("Cannot wipe data. " + restriction 5687 + " restriction is set for user " + userId); 5688 } 5689 5690 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 5691 if (!isDeviceOwner(admin, userId)) { 5692 throw new SecurityException( 5693 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 5694 } 5695 PersistentDataBlockManager manager = (PersistentDataBlockManager) 5696 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 5697 if (manager != null) { 5698 manager.wipe(); 5699 } 5700 } 5701 5702 // TODO If split user is enabled and the device owner is set in the primary user 5703 // (rather than system), we should probably trigger factory reset. Current code just 5704 // removes that user (but still clears FRP...) 5705 if (userId == UserHandle.USER_SYSTEM) { 5706 forceWipeDeviceNoLock(/*wipeExtRequested=*/ ( 5707 flags & WIPE_EXTERNAL_STORAGE) != 0, 5708 internalReason, 5709 /*wipeEuicc=*/ (flags & WIPE_EUICC) != 0); 5710 } else { 5711 forceWipeUser(userId, wipeReasonForUser); 5712 } 5713 } finally { 5714 mInjector.binderRestoreCallingIdentity(ident); 5715 } 5716 } 5717 5718 private void sendWipeProfileNotification(String wipeReasonForUser) { 5719 Notification notification = 5720 new Notification.Builder(mContext, SystemNotificationChannels.DEVICE_ADMIN) 5721 .setSmallIcon(android.R.drawable.stat_sys_warning) 5722 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 5723 .setContentText(wipeReasonForUser) 5724 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 5725 .setStyle(new Notification.BigTextStyle().bigText(wipeReasonForUser)) 5726 .build(); 5727 mInjector.getNotificationManager().notify(SystemMessage.NOTE_PROFILE_WIPED, notification); 5728 } 5729 5730 private void clearWipeProfileNotification() { 5731 mInjector.getNotificationManager().cancel(SystemMessage.NOTE_PROFILE_WIPED); 5732 } 5733 5734 @Override 5735 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 5736 if (!mHasFeature) { 5737 return; 5738 } 5739 enforceFullCrossUsersPermission(userHandle); 5740 mContext.enforceCallingOrSelfPermission( 5741 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5742 5743 synchronized (this) { 5744 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 5745 if (admin == null) { 5746 result.sendResult(null); 5747 return; 5748 } 5749 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 5750 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 5751 intent.setComponent(admin.info.getComponent()); 5752 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 5753 null, new BroadcastReceiver() { 5754 @Override 5755 public void onReceive(Context context, Intent intent) { 5756 result.sendResult(getResultExtras(false)); 5757 } 5758 }, null, Activity.RESULT_OK, null, null); 5759 } 5760 } 5761 5762 /** 5763 * Notify DPMS regarding the metric of the current password. This happens when the user changes 5764 * the password, but also when the user just unlocks the keyguard. In comparison, 5765 * reportPasswordChanged() is only called when the user changes the password. 5766 */ 5767 @Override 5768 public void setActivePasswordState(PasswordMetrics metrics, int userHandle) { 5769 if (!mHasFeature) { 5770 return; 5771 } 5772 enforceFullCrossUsersPermission(userHandle); 5773 mContext.enforceCallingOrSelfPermission( 5774 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5775 5776 // If the managed profile doesn't have a separate password, set the metrics to default 5777 if (isManagedProfile(userHandle) && !isSeparateProfileChallengeEnabled(userHandle)) { 5778 metrics = new PasswordMetrics(); 5779 } 5780 5781 validateQualityConstant(metrics.quality); 5782 DevicePolicyData policy = getUserData(userHandle); 5783 synchronized (this) { 5784 policy.mActivePasswordMetrics = metrics; 5785 policy.mPasswordStateHasBeenSetSinceBoot = true; 5786 } 5787 } 5788 5789 @Override 5790 public void reportPasswordChanged(@UserIdInt int userId) { 5791 if (!mHasFeature) { 5792 return; 5793 } 5794 enforceFullCrossUsersPermission(userId); 5795 5796 // Managed Profile password can only be changed when it has a separate challenge. 5797 if (!isSeparateProfileChallengeEnabled(userId)) { 5798 enforceNotManagedProfile(userId, "set the active password"); 5799 } 5800 5801 mContext.enforceCallingOrSelfPermission( 5802 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5803 5804 DevicePolicyData policy = getUserData(userId); 5805 5806 long ident = mInjector.binderClearCallingIdentity(); 5807 try { 5808 synchronized (this) { 5809 policy.mFailedPasswordAttempts = 0; 5810 updatePasswordValidityCheckpointLocked(userId); 5811 saveSettingsLocked(userId); 5812 updatePasswordExpirationsLocked(userId); 5813 setExpirationAlarmCheckLocked(mContext, userId, /* parent */ false); 5814 5815 // Send a broadcast to each profile using this password as its primary unlock. 5816 sendAdminCommandForLockscreenPoliciesLocked( 5817 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 5818 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userId); 5819 } 5820 removeCaApprovalsIfNeeded(userId); 5821 } finally { 5822 mInjector.binderRestoreCallingIdentity(ident); 5823 } 5824 } 5825 5826 /** 5827 * Called any time the device password is updated. Resets all password expiration clocks. 5828 */ 5829 private void updatePasswordExpirationsLocked(int userHandle) { 5830 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 5831 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 5832 userHandle, /* parent */ false); 5833 final int N = admins.size(); 5834 for (int i = 0; i < N; i++) { 5835 ActiveAdmin admin = admins.get(i); 5836 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 5837 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 5838 long timeout = admin.passwordExpirationTimeout; 5839 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 5840 admin.passwordExpirationDate = expiration; 5841 } 5842 } 5843 for (int affectedUserId : affectedUserIds) { 5844 saveSettingsLocked(affectedUserId); 5845 } 5846 } 5847 5848 @Override 5849 public void reportFailedPasswordAttempt(int userHandle) { 5850 enforceFullCrossUsersPermission(userHandle); 5851 if (!isSeparateProfileChallengeEnabled(userHandle)) { 5852 enforceNotManagedProfile(userHandle, 5853 "report failed password attempt if separate profile challenge is not in place"); 5854 } 5855 mContext.enforceCallingOrSelfPermission( 5856 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5857 5858 boolean wipeData = false; 5859 ActiveAdmin strictestAdmin = null; 5860 final long ident = mInjector.binderClearCallingIdentity(); 5861 try { 5862 synchronized (this) { 5863 DevicePolicyData policy = getUserData(userHandle); 5864 policy.mFailedPasswordAttempts++; 5865 saveSettingsLocked(userHandle); 5866 if (mHasFeature) { 5867 strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 5868 userHandle, /* parent */ false); 5869 int max = strictestAdmin != null 5870 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 5871 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 5872 wipeData = true; 5873 } 5874 5875 sendAdminCommandForLockscreenPoliciesLocked( 5876 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 5877 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 5878 } 5879 } 5880 } finally { 5881 mInjector.binderRestoreCallingIdentity(ident); 5882 } 5883 5884 if (wipeData && strictestAdmin != null) { 5885 final int userId = strictestAdmin.getUserHandle().getIdentifier(); 5886 Slog.i(LOG_TAG, "Max failed password attempts policy reached for admin: " 5887 + strictestAdmin.info.getComponent().flattenToShortString() 5888 + ". Calling wipeData for user " + userId); 5889 5890 // Attempt to wipe the device/user/profile associated with the admin, as if the 5891 // admin had called wipeData(). That way we can check whether the admin is actually 5892 // allowed to wipe the device (e.g. a regular device admin shouldn't be able to wipe the 5893 // device if the device owner has set DISALLOW_FACTORY_RESET, but the DO should be 5894 // able to do so). 5895 // IMPORTANT: Call without holding the lock to prevent deadlock. 5896 try { 5897 String wipeReasonForUser = mContext.getString( 5898 R.string.work_profile_deleted_reason_maximum_password_failure); 5899 wipeDataNoLock(strictestAdmin.info.getComponent(), 5900 /*flags=*/ 0, 5901 /*reason=*/ "reportFailedPasswordAttempt()", 5902 wipeReasonForUser, 5903 userId); 5904 } catch (SecurityException e) { 5905 Slog.w(LOG_TAG, "Failed to wipe user " + userId 5906 + " after max failed password attempts reached.", e); 5907 } 5908 } 5909 5910 if (mInjector.securityLogIsLoggingEnabled()) { 5911 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, 5912 /*result*/ 0, 5913 /*method strength*/ 1); 5914 } 5915 } 5916 5917 @Override 5918 public void reportSuccessfulPasswordAttempt(int userHandle) { 5919 enforceFullCrossUsersPermission(userHandle); 5920 mContext.enforceCallingOrSelfPermission( 5921 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5922 5923 synchronized (this) { 5924 DevicePolicyData policy = getUserData(userHandle); 5925 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 5926 long ident = mInjector.binderClearCallingIdentity(); 5927 try { 5928 policy.mFailedPasswordAttempts = 0; 5929 policy.mPasswordOwner = -1; 5930 saveSettingsLocked(userHandle); 5931 if (mHasFeature) { 5932 sendAdminCommandForLockscreenPoliciesLocked( 5933 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 5934 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 5935 } 5936 } finally { 5937 mInjector.binderRestoreCallingIdentity(ident); 5938 } 5939 } 5940 } 5941 5942 if (mInjector.securityLogIsLoggingEnabled()) { 5943 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5944 /*method strength*/ 1); 5945 } 5946 } 5947 5948 @Override 5949 public void reportFailedFingerprintAttempt(int userHandle) { 5950 enforceFullCrossUsersPermission(userHandle); 5951 mContext.enforceCallingOrSelfPermission( 5952 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5953 if (mInjector.securityLogIsLoggingEnabled()) { 5954 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 5955 /*method strength*/ 0); 5956 } 5957 } 5958 5959 @Override 5960 public void reportSuccessfulFingerprintAttempt(int userHandle) { 5961 enforceFullCrossUsersPermission(userHandle); 5962 mContext.enforceCallingOrSelfPermission( 5963 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5964 if (mInjector.securityLogIsLoggingEnabled()) { 5965 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5966 /*method strength*/ 0); 5967 } 5968 } 5969 5970 @Override 5971 public void reportKeyguardDismissed(int userHandle) { 5972 enforceFullCrossUsersPermission(userHandle); 5973 mContext.enforceCallingOrSelfPermission( 5974 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5975 5976 if (mInjector.securityLogIsLoggingEnabled()) { 5977 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 5978 } 5979 } 5980 5981 @Override 5982 public void reportKeyguardSecured(int userHandle) { 5983 enforceFullCrossUsersPermission(userHandle); 5984 mContext.enforceCallingOrSelfPermission( 5985 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5986 5987 if (mInjector.securityLogIsLoggingEnabled()) { 5988 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 5989 } 5990 } 5991 5992 @Override 5993 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 5994 String exclusionList) { 5995 if (!mHasFeature) { 5996 return null; 5997 } 5998 synchronized(this) { 5999 Preconditions.checkNotNull(who, "ComponentName is null"); 6000 6001 // Only check if system user has set global proxy. We don't allow other users to set it. 6002 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 6003 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6004 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 6005 6006 // Scan through active admins and find if anyone has already 6007 // set the global proxy. 6008 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 6009 for (ComponentName component : compSet) { 6010 ActiveAdmin ap = policy.mAdminMap.get(component); 6011 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 6012 // Another admin already sets the global proxy 6013 // Return it to the caller. 6014 return component; 6015 } 6016 } 6017 6018 // If the user is not system, don't set the global proxy. Fail silently. 6019 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 6020 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 6021 + UserHandle.getCallingUserId() + " is not permitted."); 6022 return null; 6023 } 6024 if (proxySpec == null) { 6025 admin.specifiesGlobalProxy = false; 6026 admin.globalProxySpec = null; 6027 admin.globalProxyExclusionList = null; 6028 } else { 6029 6030 admin.specifiesGlobalProxy = true; 6031 admin.globalProxySpec = proxySpec; 6032 admin.globalProxyExclusionList = exclusionList; 6033 } 6034 6035 // Reset the global proxy accordingly 6036 // Do this using system permissions, as apps cannot write to secure settings 6037 long origId = mInjector.binderClearCallingIdentity(); 6038 try { 6039 resetGlobalProxyLocked(policy); 6040 } finally { 6041 mInjector.binderRestoreCallingIdentity(origId); 6042 } 6043 return null; 6044 } 6045 } 6046 6047 @Override 6048 public ComponentName getGlobalProxyAdmin(int userHandle) { 6049 if (!mHasFeature) { 6050 return null; 6051 } 6052 enforceFullCrossUsersPermission(userHandle); 6053 synchronized(this) { 6054 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 6055 // Scan through active admins and find if anyone has already 6056 // set the global proxy. 6057 final int N = policy.mAdminList.size(); 6058 for (int i = 0; i < N; i++) { 6059 ActiveAdmin ap = policy.mAdminList.get(i); 6060 if (ap.specifiesGlobalProxy) { 6061 // Device admin sets the global proxy 6062 // Return it to the caller. 6063 return ap.info.getComponent(); 6064 } 6065 } 6066 } 6067 // No device admin sets the global proxy. 6068 return null; 6069 } 6070 6071 @Override 6072 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 6073 synchronized (this) { 6074 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6075 } 6076 long token = mInjector.binderClearCallingIdentity(); 6077 try { 6078 ConnectivityManager connectivityManager = (ConnectivityManager) 6079 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 6080 connectivityManager.setGlobalProxy(proxyInfo); 6081 } finally { 6082 mInjector.binderRestoreCallingIdentity(token); 6083 } 6084 } 6085 6086 private void resetGlobalProxyLocked(DevicePolicyData policy) { 6087 final int N = policy.mAdminList.size(); 6088 for (int i = 0; i < N; i++) { 6089 ActiveAdmin ap = policy.mAdminList.get(i); 6090 if (ap.specifiesGlobalProxy) { 6091 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 6092 return; 6093 } 6094 } 6095 // No device admins defining global proxies - reset global proxy settings to none 6096 saveGlobalProxyLocked(null, null); 6097 } 6098 6099 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 6100 if (exclusionList == null) { 6101 exclusionList = ""; 6102 } 6103 if (proxySpec == null) { 6104 proxySpec = ""; 6105 } 6106 // Remove white spaces 6107 proxySpec = proxySpec.trim(); 6108 String data[] = proxySpec.split(":"); 6109 int proxyPort = 8080; 6110 if (data.length > 1) { 6111 try { 6112 proxyPort = Integer.parseInt(data[1]); 6113 } catch (NumberFormatException e) {} 6114 } 6115 exclusionList = exclusionList.trim(); 6116 6117 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 6118 if (!proxyProperties.isValid()) { 6119 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 6120 return; 6121 } 6122 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 6123 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 6124 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 6125 exclusionList); 6126 } 6127 6128 /** 6129 * Set the storage encryption request for a single admin. Returns the new total request 6130 * status (for all admins). 6131 */ 6132 @Override 6133 public int setStorageEncryption(ComponentName who, boolean encrypt) { 6134 if (!mHasFeature) { 6135 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6136 } 6137 Preconditions.checkNotNull(who, "ComponentName is null"); 6138 final int userHandle = UserHandle.getCallingUserId(); 6139 synchronized (this) { 6140 // Check for permissions 6141 // Only system user can set storage encryption 6142 if (userHandle != UserHandle.USER_SYSTEM) { 6143 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 6144 + UserHandle.getCallingUserId() + " is not permitted."); 6145 return 0; 6146 } 6147 6148 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6149 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 6150 6151 // Quick exit: If the filesystem does not support encryption, we can exit early. 6152 if (!isEncryptionSupported()) { 6153 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6154 } 6155 6156 // (1) Record the value for the admin so it's sticky 6157 if (ap.encryptionRequested != encrypt) { 6158 ap.encryptionRequested = encrypt; 6159 saveSettingsLocked(userHandle); 6160 } 6161 6162 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 6163 // (2) Compute "max" for all admins 6164 boolean newRequested = false; 6165 final int N = policy.mAdminList.size(); 6166 for (int i = 0; i < N; i++) { 6167 newRequested |= policy.mAdminList.get(i).encryptionRequested; 6168 } 6169 6170 // Notify OS of new request 6171 setEncryptionRequested(newRequested); 6172 6173 // Return the new global request status 6174 return newRequested 6175 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 6176 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 6177 } 6178 } 6179 6180 /** 6181 * Get the current storage encryption request status for a given admin, or aggregate of all 6182 * active admins. 6183 */ 6184 @Override 6185 public boolean getStorageEncryption(ComponentName who, int userHandle) { 6186 if (!mHasFeature) { 6187 return false; 6188 } 6189 enforceFullCrossUsersPermission(userHandle); 6190 synchronized (this) { 6191 // Check for permissions if a particular caller is specified 6192 if (who != null) { 6193 // When checking for a single caller, status is based on caller's request 6194 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 6195 return ap != null ? ap.encryptionRequested : false; 6196 } 6197 6198 // If no particular caller is specified, return the aggregate set of requests. 6199 // This is short circuited by returning true on the first hit. 6200 DevicePolicyData policy = getUserData(userHandle); 6201 final int N = policy.mAdminList.size(); 6202 for (int i = 0; i < N; i++) { 6203 if (policy.mAdminList.get(i).encryptionRequested) { 6204 return true; 6205 } 6206 } 6207 return false; 6208 } 6209 } 6210 6211 /** 6212 * Get the current encryption status of the device. 6213 */ 6214 @Override 6215 public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) { 6216 if (!mHasFeature) { 6217 // Ok to return current status. 6218 } 6219 enforceFullCrossUsersPermission(userHandle); 6220 6221 // It's not critical here, but let's make sure the package name is correct, in case 6222 // we start using it for different purposes. 6223 ensureCallerPackage(callerPackage); 6224 6225 final ApplicationInfo ai; 6226 try { 6227 ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle); 6228 } catch (RemoteException e) { 6229 throw new SecurityException(e); 6230 } 6231 6232 boolean legacyApp = false; 6233 if (ai.targetSdkVersion <= Build.VERSION_CODES.M) { 6234 legacyApp = true; 6235 } 6236 6237 final int rawStatus = getEncryptionStatus(); 6238 if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) { 6239 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 6240 } 6241 return rawStatus; 6242 } 6243 6244 /** 6245 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 6246 */ 6247 private boolean isEncryptionSupported() { 6248 // Note, this can be implemented as 6249 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6250 // But is provided as a separate internal method if there's a faster way to do a 6251 // simple check for supported-or-not. 6252 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6253 } 6254 6255 /** 6256 * Hook to low-levels: Reporting the current status of encryption. 6257 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 6258 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 6259 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, 6260 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or 6261 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 6262 */ 6263 private int getEncryptionStatus() { 6264 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 6265 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER; 6266 } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) { 6267 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 6268 } else if (mInjector.storageManagerIsEncrypted()) { 6269 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 6270 } else if (mInjector.storageManagerIsEncryptable()) { 6271 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 6272 } else { 6273 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6274 } 6275 } 6276 6277 /** 6278 * Hook to low-levels: If needed, record the new admin setting for encryption. 6279 */ 6280 private void setEncryptionRequested(boolean encrypt) { 6281 } 6282 6283 /** 6284 * Set whether the screen capture is disabled for the user managed by the specified admin. 6285 */ 6286 @Override 6287 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 6288 if (!mHasFeature) { 6289 return; 6290 } 6291 Preconditions.checkNotNull(who, "ComponentName is null"); 6292 final int userHandle = UserHandle.getCallingUserId(); 6293 synchronized (this) { 6294 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6295 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6296 if (ap.disableScreenCapture != disabled) { 6297 ap.disableScreenCapture = disabled; 6298 saveSettingsLocked(userHandle); 6299 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 6300 } 6301 } 6302 } 6303 6304 /** 6305 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 6306 * active admin (if given admin is null). 6307 */ 6308 @Override 6309 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 6310 if (!mHasFeature) { 6311 return false; 6312 } 6313 synchronized (this) { 6314 if (who != null) { 6315 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6316 return (admin != null) ? admin.disableScreenCapture : false; 6317 } 6318 6319 DevicePolicyData policy = getUserData(userHandle); 6320 final int N = policy.mAdminList.size(); 6321 for (int i = 0; i < N; i++) { 6322 ActiveAdmin admin = policy.mAdminList.get(i); 6323 if (admin.disableScreenCapture) { 6324 return true; 6325 } 6326 } 6327 return false; 6328 } 6329 } 6330 6331 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 6332 final boolean disabled) { 6333 mHandler.post(new Runnable() { 6334 @Override 6335 public void run() { 6336 try { 6337 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 6338 } catch (RemoteException e) { 6339 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 6340 } 6341 } 6342 }); 6343 } 6344 6345 /** 6346 * Set whether auto time is required by the specified admin (must be device or profile owner). 6347 */ 6348 @Override 6349 public void setAutoTimeRequired(ComponentName who, boolean required) { 6350 if (!mHasFeature) { 6351 return; 6352 } 6353 Preconditions.checkNotNull(who, "ComponentName is null"); 6354 final int userHandle = UserHandle.getCallingUserId(); 6355 synchronized (this) { 6356 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6357 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6358 if (admin.requireAutoTime != required) { 6359 admin.requireAutoTime = required; 6360 saveSettingsLocked(userHandle); 6361 } 6362 } 6363 6364 // Turn AUTO_TIME on in settings if it is required 6365 if (required) { 6366 long ident = mInjector.binderClearCallingIdentity(); 6367 try { 6368 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 6369 } finally { 6370 mInjector.binderRestoreCallingIdentity(ident); 6371 } 6372 } 6373 } 6374 6375 /** 6376 * Returns whether or not auto time is required by the device owner or any profile owner. 6377 */ 6378 @Override 6379 public boolean getAutoTimeRequired() { 6380 if (!mHasFeature) { 6381 return false; 6382 } 6383 synchronized (this) { 6384 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6385 if (deviceOwner != null && deviceOwner.requireAutoTime) { 6386 // If the device owner enforces auto time, we don't need to check the PO's 6387 return true; 6388 } 6389 6390 // Now check to see if any profile owner on any user enforces auto time 6391 for (Integer userId : mOwners.getProfileOwnerKeys()) { 6392 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 6393 if (profileOwner != null && profileOwner.requireAutoTime) { 6394 return true; 6395 } 6396 } 6397 6398 return false; 6399 } 6400 } 6401 6402 @Override 6403 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 6404 if (!mHasFeature) { 6405 return; 6406 } 6407 Preconditions.checkNotNull(who, "ComponentName is null"); 6408 // Allow setting this policy to true only if there is a split system user. 6409 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 6410 throw new UnsupportedOperationException( 6411 "Cannot force ephemeral users on systems without split system user."); 6412 } 6413 boolean removeAllUsers = false; 6414 synchronized (this) { 6415 final ActiveAdmin deviceOwner = 6416 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6417 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 6418 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 6419 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 6420 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 6421 removeAllUsers = forceEphemeralUsers; 6422 } 6423 } 6424 if (removeAllUsers) { 6425 long identitity = mInjector.binderClearCallingIdentity(); 6426 try { 6427 mUserManagerInternal.removeAllUsers(); 6428 } finally { 6429 mInjector.binderRestoreCallingIdentity(identitity); 6430 } 6431 } 6432 } 6433 6434 @Override 6435 public boolean getForceEphemeralUsers(ComponentName who) { 6436 if (!mHasFeature) { 6437 return false; 6438 } 6439 Preconditions.checkNotNull(who, "ComponentName is null"); 6440 synchronized (this) { 6441 final ActiveAdmin deviceOwner = 6442 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6443 return deviceOwner.forceEphemeralUsers; 6444 } 6445 } 6446 6447 private void ensureDeviceOwnerAndAllUsersAffiliated(ComponentName who) throws SecurityException { 6448 synchronized (this) { 6449 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6450 if (!areAllUsersAffiliatedWithDeviceLocked()) { 6451 throw new SecurityException("Not all users are affiliated."); 6452 } 6453 } 6454 } 6455 6456 @Override 6457 public boolean requestBugreport(ComponentName who) { 6458 if (!mHasFeature) { 6459 return false; 6460 } 6461 Preconditions.checkNotNull(who, "ComponentName is null"); 6462 6463 // TODO: If an unaffiliated user is removed, the admin will be able to request a bugreport 6464 // which could still contain data related to that user. Should we disallow that, e.g. until 6465 // next boot? Might not be needed given that this still requires user consent. 6466 ensureDeviceOwnerAndAllUsersAffiliated(who); 6467 6468 if (mRemoteBugreportServiceIsActive.get() 6469 || (getDeviceOwnerRemoteBugreportUri() != null)) { 6470 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 6471 return false; 6472 } 6473 6474 final long currentTime = System.currentTimeMillis(); 6475 synchronized (this) { 6476 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 6477 if (currentTime > policyData.mLastBugReportRequestTime) { 6478 policyData.mLastBugReportRequestTime = currentTime; 6479 saveSettingsLocked(UserHandle.USER_SYSTEM); 6480 } 6481 } 6482 6483 final long callingIdentity = mInjector.binderClearCallingIdentity(); 6484 try { 6485 mInjector.getIActivityManager().requestBugReport( 6486 ActivityManager.BUGREPORT_OPTION_REMOTE); 6487 6488 mRemoteBugreportServiceIsActive.set(true); 6489 mRemoteBugreportSharingAccepted.set(false); 6490 registerRemoteBugreportReceivers(); 6491 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 6492 RemoteBugreportUtils.NOTIFICATION_ID, 6493 RemoteBugreportUtils.buildNotification(mContext, 6494 DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL); 6495 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 6496 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 6497 return true; 6498 } catch (RemoteException re) { 6499 // should never happen 6500 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 6501 return false; 6502 } finally { 6503 mInjector.binderRestoreCallingIdentity(callingIdentity); 6504 } 6505 } 6506 6507 synchronized void sendDeviceOwnerCommand(String action, Bundle extras) { 6508 Intent intent = new Intent(action); 6509 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6510 if (extras != null) { 6511 intent.putExtras(extras); 6512 } 6513 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6514 } 6515 6516 private synchronized String getDeviceOwnerRemoteBugreportUri() { 6517 return mOwners.getDeviceOwnerRemoteBugreportUri(); 6518 } 6519 6520 private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 6521 String bugreportHash) { 6522 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 6523 } 6524 6525 private void registerRemoteBugreportReceivers() { 6526 try { 6527 IntentFilter filterFinished = new IntentFilter( 6528 DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH, 6529 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6530 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 6531 } catch (IntentFilter.MalformedMimeTypeException e) { 6532 // should never happen, as setting a constant 6533 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 6534 } 6535 IntentFilter filterConsent = new IntentFilter(); 6536 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 6537 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 6538 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 6539 } 6540 6541 private void onBugreportFinished(Intent intent) { 6542 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6543 mRemoteBugreportServiceIsActive.set(false); 6544 Uri bugreportUri = intent.getData(); 6545 String bugreportUriString = null; 6546 if (bugreportUri != null) { 6547 bugreportUriString = bugreportUri.toString(); 6548 } 6549 String bugreportHash = intent.getStringExtra( 6550 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH); 6551 if (mRemoteBugreportSharingAccepted.get()) { 6552 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6553 mInjector.getNotificationManager().cancel(LOG_TAG, 6554 RemoteBugreportUtils.NOTIFICATION_ID); 6555 } else { 6556 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 6557 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6558 RemoteBugreportUtils.buildNotification(mContext, 6559 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 6560 UserHandle.ALL); 6561 } 6562 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6563 } 6564 6565 private void onBugreportFailed() { 6566 mRemoteBugreportServiceIsActive.set(false); 6567 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6568 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6569 mRemoteBugreportSharingAccepted.set(false); 6570 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6571 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 6572 Bundle extras = new Bundle(); 6573 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6574 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 6575 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6576 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 6577 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6578 } 6579 6580 private void onBugreportSharingAccepted() { 6581 mRemoteBugreportSharingAccepted.set(true); 6582 String bugreportUriString = null; 6583 String bugreportHash = null; 6584 synchronized (this) { 6585 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 6586 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 6587 } 6588 if (bugreportUriString != null) { 6589 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6590 } else if (mRemoteBugreportServiceIsActive.get()) { 6591 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6592 RemoteBugreportUtils.buildNotification(mContext, 6593 DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED), 6594 UserHandle.ALL); 6595 } 6596 } 6597 6598 private void onBugreportSharingDeclined() { 6599 if (mRemoteBugreportServiceIsActive.get()) { 6600 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6601 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6602 mRemoteBugreportServiceIsActive.set(false); 6603 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6604 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6605 } 6606 mRemoteBugreportSharingAccepted.set(false); 6607 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6608 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 6609 } 6610 6611 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 6612 String bugreportHash) { 6613 ParcelFileDescriptor pfd = null; 6614 try { 6615 if (bugreportUriString == null) { 6616 throw new FileNotFoundException(); 6617 } 6618 Uri bugreportUri = Uri.parse(bugreportUriString); 6619 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 6620 6621 synchronized (this) { 6622 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 6623 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6624 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6625 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 6626 intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 6627 6628 LocalServices.getService(ActivityManagerInternal.class) 6629 .grantUriPermissionFromIntent(Process.SHELL_UID, 6630 mOwners.getDeviceOwnerComponent().getPackageName(), 6631 intent, mOwners.getDeviceOwnerUserId()); 6632 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6633 } 6634 } catch (FileNotFoundException e) { 6635 Bundle extras = new Bundle(); 6636 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6637 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 6638 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6639 } finally { 6640 try { 6641 if (pfd != null) { 6642 pfd.close(); 6643 } 6644 } catch (IOException ex) { 6645 // Ignore 6646 } 6647 mRemoteBugreportSharingAccepted.set(false); 6648 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6649 } 6650 } 6651 6652 /** 6653 * Disables all device cameras according to the specified admin. 6654 */ 6655 @Override 6656 public void setCameraDisabled(ComponentName who, boolean disabled) { 6657 if (!mHasFeature) { 6658 return; 6659 } 6660 Preconditions.checkNotNull(who, "ComponentName is null"); 6661 final int userHandle = mInjector.userHandleGetCallingUserId(); 6662 synchronized (this) { 6663 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6664 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 6665 if (ap.disableCamera != disabled) { 6666 ap.disableCamera = disabled; 6667 saveSettingsLocked(userHandle); 6668 } 6669 } 6670 // Tell the user manager that the restrictions have changed. 6671 pushUserRestrictions(userHandle); 6672 } 6673 6674 /** 6675 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 6676 * active admins. 6677 */ 6678 @Override 6679 public boolean getCameraDisabled(ComponentName who, int userHandle) { 6680 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 6681 } 6682 6683 private boolean getCameraDisabled(ComponentName who, int userHandle, 6684 boolean mergeDeviceOwnerRestriction) { 6685 if (!mHasFeature) { 6686 return false; 6687 } 6688 synchronized (this) { 6689 if (who != null) { 6690 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6691 return (admin != null) ? admin.disableCamera : false; 6692 } 6693 // First, see if DO has set it. If so, it's device-wide. 6694 if (mergeDeviceOwnerRestriction) { 6695 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6696 if (deviceOwner != null && deviceOwner.disableCamera) { 6697 return true; 6698 } 6699 } 6700 6701 // Then check each device admin on the user. 6702 DevicePolicyData policy = getUserData(userHandle); 6703 // Determine whether or not the device camera is disabled for any active admins. 6704 final int N = policy.mAdminList.size(); 6705 for (int i = 0; i < N; i++) { 6706 ActiveAdmin admin = policy.mAdminList.get(i); 6707 if (admin.disableCamera) { 6708 return true; 6709 } 6710 } 6711 return false; 6712 } 6713 } 6714 6715 @Override 6716 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 6717 if (!mHasFeature) { 6718 return; 6719 } 6720 Preconditions.checkNotNull(who, "ComponentName is null"); 6721 final int userHandle = mInjector.userHandleGetCallingUserId(); 6722 if (isManagedProfile(userHandle)) { 6723 if (parent) { 6724 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 6725 } else { 6726 which = which & PROFILE_KEYGUARD_FEATURES; 6727 } 6728 } 6729 synchronized (this) { 6730 ActiveAdmin ap = getActiveAdminForCallerLocked( 6731 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 6732 if (ap.disabledKeyguardFeatures != which) { 6733 ap.disabledKeyguardFeatures = which; 6734 saveSettingsLocked(userHandle); 6735 } 6736 } 6737 } 6738 6739 /** 6740 * Gets the disabled state for features in keyguard for the given admin, 6741 * or the aggregate of all active admins if who is null. 6742 */ 6743 @Override 6744 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 6745 if (!mHasFeature) { 6746 return 0; 6747 } 6748 enforceFullCrossUsersPermission(userHandle); 6749 final long ident = mInjector.binderClearCallingIdentity(); 6750 try { 6751 synchronized (this) { 6752 if (who != null) { 6753 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 6754 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 6755 } 6756 6757 final List<ActiveAdmin> admins; 6758 if (!parent && isManagedProfile(userHandle)) { 6759 // If we are being asked about a managed profile, just return keyguard features 6760 // disabled by admins in the profile. 6761 admins = getUserDataUnchecked(userHandle).mAdminList; 6762 } else { 6763 // Otherwise return those set by admins in the user and its profiles. 6764 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 6765 } 6766 6767 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 6768 final int N = admins.size(); 6769 for (int i = 0; i < N; i++) { 6770 ActiveAdmin admin = admins.get(i); 6771 int userId = admin.getUserHandle().getIdentifier(); 6772 boolean isRequestedUser = !parent && (userId == userHandle); 6773 if (isRequestedUser || !isManagedProfile(userId)) { 6774 // If we are being asked explicitly about this user 6775 // return all disabled features even if its a managed profile. 6776 which |= admin.disabledKeyguardFeatures; 6777 } else { 6778 // Otherwise a managed profile is only allowed to disable 6779 // some features on the parent user. 6780 which |= (admin.disabledKeyguardFeatures 6781 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 6782 } 6783 } 6784 return which; 6785 } 6786 } finally { 6787 mInjector.binderRestoreCallingIdentity(ident); 6788 } 6789 } 6790 6791 @Override 6792 public void setKeepUninstalledPackages(ComponentName who, String callerPackage, 6793 List<String> packageList) { 6794 if (!mHasFeature) { 6795 return; 6796 } 6797 Preconditions.checkNotNull(packageList, "packageList is null"); 6798 final int userHandle = UserHandle.getCallingUserId(); 6799 synchronized (this) { 6800 // Ensure the caller is a DO or a keep uninstalled packages delegate. 6801 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 6802 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 6803 // Get the device owner 6804 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6805 // Set list of packages to be kept even if uninstalled. 6806 deviceOwner.keepUninstalledPackages = packageList; 6807 // Save settings. 6808 saveSettingsLocked(userHandle); 6809 // Notify package manager. 6810 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 6811 } 6812 } 6813 6814 @Override 6815 public List<String> getKeepUninstalledPackages(ComponentName who, String callerPackage) { 6816 if (!mHasFeature) { 6817 return null; 6818 } 6819 // TODO In split system user mode, allow apps on user 0 to query the list 6820 synchronized (this) { 6821 // Ensure the caller is a DO or a keep uninstalled packages delegate. 6822 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 6823 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 6824 return getKeepUninstalledPackagesLocked(); 6825 } 6826 } 6827 6828 private List<String> getKeepUninstalledPackagesLocked() { 6829 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6830 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 6831 } 6832 6833 @Override 6834 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 6835 if (!mHasFeature) { 6836 return false; 6837 } 6838 if (admin == null 6839 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 6840 throw new IllegalArgumentException("Invalid component " + admin 6841 + " for device owner"); 6842 } 6843 final boolean hasIncompatibleAccountsOrNonAdb = 6844 hasIncompatibleAccountsOrNonAdbNoLock(userId, admin); 6845 synchronized (this) { 6846 enforceCanSetDeviceOwnerLocked(admin, userId, hasIncompatibleAccountsOrNonAdb); 6847 final ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(admin, userId); 6848 if (activeAdmin == null 6849 || getUserData(userId).mRemovingAdmins.contains(admin)) { 6850 throw new IllegalArgumentException("Not active admin: " + admin); 6851 } 6852 6853 // Shutting down backup manager service permanently. 6854 long ident = mInjector.binderClearCallingIdentity(); 6855 try { 6856 if (mInjector.getIBackupManager() != null) { 6857 mInjector.getIBackupManager() 6858 .setBackupServiceActive(UserHandle.USER_SYSTEM, false); 6859 } 6860 } catch (RemoteException e) { 6861 throw new IllegalStateException("Failed deactivating backup service.", e); 6862 } finally { 6863 mInjector.binderRestoreCallingIdentity(ident); 6864 } 6865 6866 if (isAdb()) { 6867 // Log device owner provisioning was started using adb. 6868 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_DEVICE_OWNER); 6869 } 6870 6871 mOwners.setDeviceOwner(admin, ownerName, userId); 6872 mOwners.writeDeviceOwner(); 6873 updateDeviceOwnerLocked(); 6874 setDeviceOwnerSystemPropertyLocked(); 6875 6876 final Set<String> restrictions = 6877 UserRestrictionsUtils.getDefaultEnabledForDeviceOwner(); 6878 if (!restrictions.isEmpty()) { 6879 for (String restriction : restrictions) { 6880 activeAdmin.ensureUserRestrictions().putBoolean(restriction, true); 6881 } 6882 activeAdmin.defaultEnabledRestrictionsAlreadySet.addAll(restrictions); 6883 Slog.i(LOG_TAG, "Enabled the following restrictions by default: " + restrictions); 6884 6885 saveUserRestrictionsLocked(userId); 6886 } 6887 6888 ident = mInjector.binderClearCallingIdentity(); 6889 try { 6890 // TODO Send to system too? 6891 mContext.sendBroadcastAsUser( 6892 new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED) 6893 .addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND), 6894 UserHandle.of(userId)); 6895 } finally { 6896 mInjector.binderRestoreCallingIdentity(ident); 6897 } 6898 mDeviceAdminServiceController.startServiceForOwner( 6899 admin.getPackageName(), userId, "set-device-owner"); 6900 6901 Slog.i(LOG_TAG, "Device owner set: " + admin + " on user " + userId); 6902 return true; 6903 } 6904 } 6905 6906 @Override 6907 public boolean hasDeviceOwner() { 6908 enforceDeviceOwnerOrManageUsers(); 6909 return mOwners.hasDeviceOwner(); 6910 } 6911 6912 boolean isDeviceOwner(ActiveAdmin admin) { 6913 return isDeviceOwner(admin.info.getComponent(), admin.getUserHandle().getIdentifier()); 6914 } 6915 6916 public boolean isDeviceOwner(ComponentName who, int userId) { 6917 synchronized (this) { 6918 return mOwners.hasDeviceOwner() 6919 && mOwners.getDeviceOwnerUserId() == userId 6920 && mOwners.getDeviceOwnerComponent().equals(who); 6921 } 6922 } 6923 6924 private boolean isDeviceOwnerPackage(String packageName, int userId) { 6925 synchronized (this) { 6926 return mOwners.hasDeviceOwner() 6927 && mOwners.getDeviceOwnerUserId() == userId 6928 && mOwners.getDeviceOwnerPackageName().equals(packageName); 6929 } 6930 } 6931 6932 private boolean isProfileOwnerPackage(String packageName, int userId) { 6933 synchronized (this) { 6934 return mOwners.hasProfileOwner(userId) 6935 && mOwners.getProfileOwnerPackage(userId).equals(packageName); 6936 } 6937 } 6938 6939 public boolean isProfileOwner(ComponentName who, int userId) { 6940 final ComponentName profileOwner = getProfileOwner(userId); 6941 return who != null && who.equals(profileOwner); 6942 } 6943 6944 @Override 6945 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 6946 if (!mHasFeature) { 6947 return null; 6948 } 6949 if (!callingUserOnly) { 6950 enforceManageUsers(); 6951 } 6952 synchronized (this) { 6953 if (!mOwners.hasDeviceOwner()) { 6954 return null; 6955 } 6956 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 6957 mOwners.getDeviceOwnerUserId()) { 6958 return null; 6959 } 6960 return mOwners.getDeviceOwnerComponent(); 6961 } 6962 } 6963 6964 @Override 6965 public int getDeviceOwnerUserId() { 6966 if (!mHasFeature) { 6967 return UserHandle.USER_NULL; 6968 } 6969 enforceManageUsers(); 6970 synchronized (this) { 6971 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 6972 } 6973 } 6974 6975 /** 6976 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 6977 * MANAGE_USERS. 6978 */ 6979 @Override 6980 public String getDeviceOwnerName() { 6981 if (!mHasFeature) { 6982 return null; 6983 } 6984 enforceManageUsers(); 6985 synchronized (this) { 6986 if (!mOwners.hasDeviceOwner()) { 6987 return null; 6988 } 6989 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 6990 // Should setDeviceOwner/ProfileOwner still take a name? 6991 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 6992 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 6993 } 6994 } 6995 6996 /** Returns the active device owner or {@code null} if there is no device owner. */ 6997 @VisibleForTesting 6998 ActiveAdmin getDeviceOwnerAdminLocked() { 6999 ComponentName component = mOwners.getDeviceOwnerComponent(); 7000 if (component == null) { 7001 return null; 7002 } 7003 7004 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 7005 final int n = policy.mAdminList.size(); 7006 for (int i = 0; i < n; i++) { 7007 ActiveAdmin admin = policy.mAdminList.get(i); 7008 if (component.equals(admin.info.getComponent())) { 7009 return admin; 7010 } 7011 } 7012 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 7013 return null; 7014 } 7015 7016 @Override 7017 public void clearDeviceOwner(String packageName) { 7018 Preconditions.checkNotNull(packageName, "packageName is null"); 7019 final int callingUid = mInjector.binderGetCallingUid(); 7020 try { 7021 int uid = mInjector.getPackageManager().getPackageUidAsUser(packageName, 7022 UserHandle.getUserId(callingUid)); 7023 if (uid != callingUid) { 7024 throw new SecurityException("Invalid packageName"); 7025 } 7026 } catch (NameNotFoundException e) { 7027 throw new SecurityException(e); 7028 } 7029 synchronized (this) { 7030 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 7031 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 7032 if (!mOwners.hasDeviceOwner() 7033 || !deviceOwnerComponent.getPackageName().equals(packageName) 7034 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 7035 throw new SecurityException( 7036 "clearDeviceOwner can only be called by the device owner"); 7037 } 7038 enforceUserUnlocked(deviceOwnerUserId); 7039 7040 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 7041 long ident = mInjector.binderClearCallingIdentity(); 7042 try { 7043 clearDeviceOwnerLocked(admin, deviceOwnerUserId); 7044 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 7045 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 7046 intent.addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); 7047 mContext.sendBroadcastAsUser(intent, UserHandle.of(deviceOwnerUserId)); 7048 } finally { 7049 mInjector.binderRestoreCallingIdentity(ident); 7050 } 7051 Slog.i(LOG_TAG, "Device owner removed: " + deviceOwnerComponent); 7052 } 7053 } 7054 7055 private void clearDeviceOwnerLocked(ActiveAdmin admin, int userId) { 7056 mDeviceAdminServiceController.stopServiceForOwner(userId, "clear-device-owner"); 7057 7058 if (admin != null) { 7059 admin.disableCamera = false; 7060 admin.userRestrictions = null; 7061 admin.defaultEnabledRestrictionsAlreadySet.clear(); 7062 admin.forceEphemeralUsers = false; 7063 admin.isNetworkLoggingEnabled = false; 7064 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 7065 } 7066 final DevicePolicyData policyData = getUserData(userId); 7067 policyData.mCurrentInputMethodSet = false; 7068 saveSettingsLocked(userId); 7069 final DevicePolicyData systemPolicyData = getUserData(UserHandle.USER_SYSTEM); 7070 systemPolicyData.mLastSecurityLogRetrievalTime = -1; 7071 systemPolicyData.mLastBugReportRequestTime = -1; 7072 systemPolicyData.mLastNetworkLogsRetrievalTime = -1; 7073 saveSettingsLocked(UserHandle.USER_SYSTEM); 7074 clearUserPoliciesLocked(userId); 7075 7076 mOwners.clearDeviceOwner(); 7077 mOwners.writeDeviceOwner(); 7078 updateDeviceOwnerLocked(); 7079 7080 clearDeviceOwnerUserRestrictionLocked(UserHandle.of(userId)); 7081 mInjector.securityLogSetLoggingEnabledProperty(false); 7082 mSecurityLogMonitor.stop(); 7083 setNetworkLoggingActiveInternal(false); 7084 7085 try { 7086 if (mInjector.getIBackupManager() != null) { 7087 // Reactivate backup service. 7088 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 7089 } 7090 } catch (RemoteException e) { 7091 throw new IllegalStateException("Failed reactivating backup service.", e); 7092 } 7093 } 7094 7095 @Override 7096 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 7097 if (!mHasFeature) { 7098 return false; 7099 } 7100 if (who == null 7101 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 7102 throw new IllegalArgumentException("Component " + who 7103 + " not installed for userId:" + userHandle); 7104 } 7105 final boolean hasIncompatibleAccountsOrNonAdb = 7106 hasIncompatibleAccountsOrNonAdbNoLock(userHandle, who); 7107 synchronized (this) { 7108 enforceCanSetProfileOwnerLocked(who, userHandle, hasIncompatibleAccountsOrNonAdb); 7109 7110 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7111 if (admin == null || getUserData(userHandle).mRemovingAdmins.contains(who)) { 7112 throw new IllegalArgumentException("Not active admin: " + who); 7113 } 7114 7115 if (isAdb()) { 7116 // Log profile owner provisioning was started using adb. 7117 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_PROFILE_OWNER); 7118 } 7119 7120 mOwners.setProfileOwner(who, ownerName, userHandle); 7121 mOwners.writeProfileOwner(userHandle); 7122 Slog.i(LOG_TAG, "Profile owner set: " + who + " on user " + userHandle); 7123 7124 final long id = mInjector.binderClearCallingIdentity(); 7125 try { 7126 if (mUserManager.isManagedProfile(userHandle)) { 7127 maybeSetDefaultRestrictionsForAdminLocked(userHandle, admin, 7128 UserRestrictionsUtils.getDefaultEnabledForManagedProfiles()); 7129 ensureUnknownSourcesRestrictionForProfileOwnerLocked(userHandle, admin, 7130 true /* newOwner */); 7131 } 7132 } finally { 7133 mInjector.binderRestoreCallingIdentity(id); 7134 } 7135 mDeviceAdminServiceController.startServiceForOwner( 7136 who.getPackageName(), userHandle, "set-profile-owner"); 7137 return true; 7138 } 7139 } 7140 7141 @Override 7142 public void clearProfileOwner(ComponentName who) { 7143 if (!mHasFeature) { 7144 return; 7145 } 7146 Preconditions.checkNotNull(who, "ComponentName is null"); 7147 7148 final int userId = mInjector.userHandleGetCallingUserId(); 7149 enforceNotManagedProfile(userId, "clear profile owner"); 7150 enforceUserUnlocked(userId); 7151 synchronized (this) { 7152 // Check if this is the profile owner who is calling 7153 final ActiveAdmin admin = 7154 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7155 7156 final long ident = mInjector.binderClearCallingIdentity(); 7157 try { 7158 clearProfileOwnerLocked(admin, userId); 7159 removeActiveAdminLocked(who, userId); 7160 } finally { 7161 mInjector.binderRestoreCallingIdentity(ident); 7162 } 7163 Slog.i(LOG_TAG, "Profile owner " + who + " removed from user " + userId); 7164 } 7165 } 7166 7167 public void clearProfileOwnerLocked(ActiveAdmin admin, int userId) { 7168 mDeviceAdminServiceController.stopServiceForOwner(userId, "clear-profile-owner"); 7169 7170 if (admin != null) { 7171 admin.disableCamera = false; 7172 admin.userRestrictions = null; 7173 admin.defaultEnabledRestrictionsAlreadySet.clear(); 7174 } 7175 final DevicePolicyData policyData = getUserData(userId); 7176 policyData.mCurrentInputMethodSet = false; 7177 policyData.mOwnerInstalledCaCerts.clear(); 7178 saveSettingsLocked(userId); 7179 clearUserPoliciesLocked(userId); 7180 mOwners.removeProfileOwner(userId); 7181 mOwners.writeProfileOwner(userId); 7182 } 7183 7184 @Override 7185 public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) { 7186 Preconditions.checkNotNull(who, "ComponentName is null"); 7187 if (!mHasFeature) { 7188 return; 7189 } 7190 7191 final int userId = mInjector.userHandleGetCallingUserId(); 7192 synchronized (this) { 7193 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7194 if (!isUserAffiliatedWithDeviceLocked(userId)) { 7195 throw new SecurityException("Admin " + who + 7196 " is neither the device owner or affiliated user's profile owner."); 7197 } 7198 long token = mInjector.binderClearCallingIdentity(); 7199 try { 7200 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null); 7201 } finally { 7202 mInjector.binderRestoreCallingIdentity(token); 7203 } 7204 } 7205 } 7206 7207 @Override 7208 public CharSequence getDeviceOwnerLockScreenInfo() { 7209 return mLockPatternUtils.getDeviceOwnerInfo(); 7210 } 7211 7212 private void clearUserPoliciesLocked(int userId) { 7213 // Reset some of the user-specific policies. 7214 final DevicePolicyData policy = getUserData(userId); 7215 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 7216 // Clear delegations. 7217 policy.mDelegationMap.clear(); 7218 policy.mStatusBarDisabled = false; 7219 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 7220 policy.mAffiliationIds.clear(); 7221 policy.mLockTaskPackages.clear(); 7222 policy.mLockTaskFeatures = DevicePolicyManager.LOCK_TASK_FEATURE_NONE; 7223 saveSettingsLocked(userId); 7224 7225 try { 7226 mIPackageManager.updatePermissionFlagsForAllApps( 7227 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 7228 0 /* flagValues */, userId); 7229 pushUserRestrictions(userId); 7230 } catch (RemoteException re) { 7231 // Shouldn't happen. 7232 } 7233 } 7234 7235 @Override 7236 public boolean hasUserSetupCompleted() { 7237 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 7238 } 7239 7240 // This checks only if the Setup Wizard has run. Since Wear devices pair before 7241 // completing Setup Wizard, and pairing involves transferring user data, calling 7242 // logic may want to check mIsWatch or mPaired in addition to hasUserSetupCompleted(). 7243 private boolean hasUserSetupCompleted(int userHandle) { 7244 if (!mHasFeature) { 7245 return true; 7246 } 7247 return getUserData(userHandle).mUserSetupComplete; 7248 } 7249 7250 private boolean hasPaired(int userHandle) { 7251 if (!mHasFeature) { 7252 return true; 7253 } 7254 return getUserData(userHandle).mPaired; 7255 } 7256 7257 @Override 7258 public int getUserProvisioningState() { 7259 if (!mHasFeature) { 7260 return DevicePolicyManager.STATE_USER_UNMANAGED; 7261 } 7262 int userHandle = mInjector.userHandleGetCallingUserId(); 7263 return getUserProvisioningState(userHandle); 7264 } 7265 7266 private int getUserProvisioningState(int userHandle) { 7267 return getUserData(userHandle).mUserProvisioningState; 7268 } 7269 7270 @Override 7271 public void setUserProvisioningState(int newState, int userHandle) { 7272 if (!mHasFeature) { 7273 return; 7274 } 7275 7276 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 7277 && getManagedUserId(userHandle) == -1) { 7278 // No managed device, user or profile, so setting provisioning state makes no sense. 7279 throw new IllegalStateException("Not allowed to change provisioning state unless a " 7280 + "device or profile owner is set."); 7281 } 7282 7283 synchronized (this) { 7284 boolean transitionCheckNeeded = true; 7285 7286 // Calling identity/permission checks. 7287 if (isAdb()) { 7288 // ADB shell can only move directly from un-managed to finalized as part of directly 7289 // setting profile-owner or device-owner. 7290 if (getUserProvisioningState(userHandle) != 7291 DevicePolicyManager.STATE_USER_UNMANAGED 7292 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 7293 throw new IllegalStateException("Not allowed to change provisioning state " 7294 + "unless current provisioning state is unmanaged, and new state is " 7295 + "finalized."); 7296 } 7297 transitionCheckNeeded = false; 7298 } else { 7299 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 7300 enforceCanManageProfileAndDeviceOwners(); 7301 } 7302 7303 final DevicePolicyData policyData = getUserData(userHandle); 7304 if (transitionCheckNeeded) { 7305 // Optional state transition check for non-ADB case. 7306 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 7307 } 7308 policyData.mUserProvisioningState = newState; 7309 saveSettingsLocked(userHandle); 7310 } 7311 } 7312 7313 private void checkUserProvisioningStateTransition(int currentState, int newState) { 7314 // Valid transitions for normal use-cases. 7315 switch (currentState) { 7316 case DevicePolicyManager.STATE_USER_UNMANAGED: 7317 // Can move to any state from unmanaged (except itself as an edge case).. 7318 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 7319 return; 7320 } 7321 break; 7322 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 7323 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 7324 // Can only move to finalized from these states. 7325 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 7326 return; 7327 } 7328 break; 7329 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 7330 // Current user has a managed-profile, but current user is not managed, so 7331 // rather than moving to finalized state, go back to unmanaged once 7332 // profile provisioning is complete. 7333 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 7334 return; 7335 } 7336 break; 7337 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 7338 // Cannot transition out of finalized. 7339 break; 7340 } 7341 7342 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 7343 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 7344 + "from state [" + currentState + "]"); 7345 } 7346 7347 @Override 7348 public void setProfileEnabled(ComponentName who) { 7349 if (!mHasFeature) { 7350 return; 7351 } 7352 Preconditions.checkNotNull(who, "ComponentName is null"); 7353 synchronized (this) { 7354 // Check if this is the profile owner who is calling 7355 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7356 final int userId = UserHandle.getCallingUserId(); 7357 enforceManagedProfile(userId, "enable the profile"); 7358 // Check if the profile is already enabled. 7359 UserInfo managedProfile = getUserInfo(userId); 7360 if (managedProfile.isEnabled()) { 7361 Slog.e(LOG_TAG, 7362 "setProfileEnabled is called when the profile is already enabled"); 7363 return; 7364 } 7365 long id = mInjector.binderClearCallingIdentity(); 7366 try { 7367 mUserManager.setUserEnabled(userId); 7368 UserInfo parent = mUserManager.getProfileParent(userId); 7369 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 7370 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 7371 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 7372 Intent.FLAG_RECEIVER_FOREGROUND); 7373 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 7374 } finally { 7375 mInjector.binderRestoreCallingIdentity(id); 7376 } 7377 } 7378 } 7379 7380 @Override 7381 public void setProfileName(ComponentName who, String profileName) { 7382 Preconditions.checkNotNull(who, "ComponentName is null"); 7383 int userId = UserHandle.getCallingUserId(); 7384 // Check if this is the profile owner (includes device owner). 7385 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7386 7387 long id = mInjector.binderClearCallingIdentity(); 7388 try { 7389 mUserManager.setUserName(userId, profileName); 7390 } finally { 7391 mInjector.binderRestoreCallingIdentity(id); 7392 } 7393 } 7394 7395 @Override 7396 public ComponentName getProfileOwner(int userHandle) { 7397 if (!mHasFeature) { 7398 return null; 7399 } 7400 7401 synchronized (this) { 7402 return mOwners.getProfileOwnerComponent(userHandle); 7403 } 7404 } 7405 7406 // Returns the active profile owner for this user or null if the current user has no 7407 // profile owner. 7408 @VisibleForTesting 7409 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 7410 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 7411 if (profileOwner == null) { 7412 return null; 7413 } 7414 DevicePolicyData policy = getUserData(userHandle); 7415 final int n = policy.mAdminList.size(); 7416 for (int i = 0; i < n; i++) { 7417 ActiveAdmin admin = policy.mAdminList.get(i); 7418 if (profileOwner.equals(admin.info.getComponent())) { 7419 return admin; 7420 } 7421 } 7422 return null; 7423 } 7424 7425 @Override 7426 public String getProfileOwnerName(int userHandle) { 7427 if (!mHasFeature) { 7428 return null; 7429 } 7430 enforceManageUsers(); 7431 ComponentName profileOwner = getProfileOwner(userHandle); 7432 if (profileOwner == null) { 7433 return null; 7434 } 7435 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 7436 } 7437 7438 /** 7439 * Canonical name for a given package. 7440 */ 7441 private String getApplicationLabel(String packageName, int userHandle) { 7442 long token = mInjector.binderClearCallingIdentity(); 7443 try { 7444 final Context userContext; 7445 try { 7446 UserHandle handle = new UserHandle(userHandle); 7447 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 7448 } catch (PackageManager.NameNotFoundException nnfe) { 7449 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 7450 return null; 7451 } 7452 ApplicationInfo appInfo = userContext.getApplicationInfo(); 7453 CharSequence result = null; 7454 if (appInfo != null) { 7455 PackageManager pm = userContext.getPackageManager(); 7456 result = pm.getApplicationLabel(appInfo); 7457 } 7458 return result != null ? result.toString() : null; 7459 } finally { 7460 mInjector.binderRestoreCallingIdentity(token); 7461 } 7462 } 7463 7464 /** 7465 * Calls wtfStack() if called with the DPMS lock held. 7466 */ 7467 private void wtfIfInLock() { 7468 if (Thread.holdsLock(this)) { 7469 Slog.wtfStack(LOG_TAG, "Shouldn't be called with DPMS lock held"); 7470 } 7471 } 7472 7473 /** 7474 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7475 * permission. 7476 * The profile owner can only be set before the user setup phase has completed, 7477 * except for: 7478 * - SYSTEM_UID 7479 * - adb unless hasIncompatibleAccountsOrNonAdb is true. 7480 */ 7481 private void enforceCanSetProfileOwnerLocked(@Nullable ComponentName owner, int userHandle, 7482 boolean hasIncompatibleAccountsOrNonAdb) { 7483 UserInfo info = getUserInfo(userHandle); 7484 if (info == null) { 7485 // User doesn't exist. 7486 throw new IllegalArgumentException( 7487 "Attempted to set profile owner for invalid userId: " + userHandle); 7488 } 7489 if (info.isGuest()) { 7490 throw new IllegalStateException("Cannot set a profile owner on a guest"); 7491 } 7492 if (mOwners.hasProfileOwner(userHandle)) { 7493 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 7494 + "is already set."); 7495 } 7496 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 7497 throw new IllegalStateException("Trying to set the profile owner, but the user " 7498 + "already has a device owner."); 7499 } 7500 if (isAdb()) { 7501 if ((mIsWatch || hasUserSetupCompleted(userHandle)) 7502 && hasIncompatibleAccountsOrNonAdb) { 7503 throw new IllegalStateException("Not allowed to set the profile owner because " 7504 + "there are already some accounts on the profile"); 7505 } 7506 return; 7507 } 7508 enforceCanManageProfileAndDeviceOwners(); 7509 if ((mIsWatch || hasUserSetupCompleted(userHandle)) && !isCallerWithSystemUid()) { 7510 throw new IllegalStateException("Cannot set the profile owner on a user which is " 7511 + "already set-up"); 7512 } 7513 } 7514 7515 /** 7516 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7517 * permission. 7518 */ 7519 private void enforceCanSetDeviceOwnerLocked(@Nullable ComponentName owner, int userId, 7520 boolean hasIncompatibleAccountsOrNonAdb) { 7521 if (!isAdb()) { 7522 enforceCanManageProfileAndDeviceOwners(); 7523 } 7524 7525 final int code = checkDeviceOwnerProvisioningPreConditionLocked( 7526 owner, userId, isAdb(), hasIncompatibleAccountsOrNonAdb); 7527 switch (code) { 7528 case CODE_OK: 7529 return; 7530 case CODE_HAS_DEVICE_OWNER: 7531 throw new IllegalStateException( 7532 "Trying to set the device owner, but device owner is already set."); 7533 case CODE_USER_HAS_PROFILE_OWNER: 7534 throw new IllegalStateException("Trying to set the device owner, but the user " 7535 + "already has a profile owner."); 7536 case CODE_USER_NOT_RUNNING: 7537 throw new IllegalStateException("User not running: " + userId); 7538 case CODE_NOT_SYSTEM_USER: 7539 throw new IllegalStateException("User is not system user"); 7540 case CODE_USER_SETUP_COMPLETED: 7541 throw new IllegalStateException( 7542 "Cannot set the device owner if the device is already set-up"); 7543 case CODE_NONSYSTEM_USER_EXISTS: 7544 throw new IllegalStateException("Not allowed to set the device owner because there " 7545 + "are already several users on the device"); 7546 case CODE_ACCOUNTS_NOT_EMPTY: 7547 throw new IllegalStateException("Not allowed to set the device owner because there " 7548 + "are already some accounts on the device"); 7549 case CODE_HAS_PAIRED: 7550 throw new IllegalStateException("Not allowed to set the device owner because this " 7551 + "device has already paired"); 7552 default: 7553 throw new IllegalStateException("Unexpected @ProvisioningPreCondition " + code); 7554 } 7555 } 7556 7557 private void enforceUserUnlocked(int userId) { 7558 // Since we're doing this operation on behalf of an app, we only 7559 // want to use the actual "unlocked" state. 7560 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 7561 "User must be running and unlocked"); 7562 } 7563 7564 private void enforceUserUnlocked(@UserIdInt int userId, boolean parent) { 7565 if (parent) { 7566 enforceUserUnlocked(getProfileParentId(userId)); 7567 } else { 7568 enforceUserUnlocked(userId); 7569 } 7570 } 7571 7572 private void enforceManageUsers() { 7573 final int callingUid = mInjector.binderGetCallingUid(); 7574 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 7575 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 7576 } 7577 } 7578 7579 private void enforceFullCrossUsersPermission(int userHandle) { 7580 enforceSystemUserOrPermissionIfCrossUser(userHandle, 7581 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 7582 } 7583 7584 private void enforceCrossUsersPermission(int userHandle) { 7585 enforceSystemUserOrPermissionIfCrossUser(userHandle, 7586 android.Manifest.permission.INTERACT_ACROSS_USERS); 7587 } 7588 7589 private void enforceSystemUserOrPermission(String permission) { 7590 if (!(isCallerWithSystemUid() || mInjector.binderGetCallingUid() == Process.ROOT_UID)) { 7591 mContext.enforceCallingOrSelfPermission(permission, 7592 "Must be system or have " + permission + " permission"); 7593 } 7594 } 7595 7596 private void enforceSystemUserOrPermissionIfCrossUser(int userHandle, String permission) { 7597 if (userHandle < 0) { 7598 throw new IllegalArgumentException("Invalid userId " + userHandle); 7599 } 7600 if (userHandle == mInjector.userHandleGetCallingUserId()) { 7601 return; 7602 } 7603 enforceSystemUserOrPermission(permission); 7604 } 7605 7606 private void enforceManagedProfile(int userHandle, String message) { 7607 if(!isManagedProfile(userHandle)) { 7608 throw new SecurityException("You can not " + message + " outside a managed profile."); 7609 } 7610 } 7611 7612 private void enforceNotManagedProfile(int userHandle, String message) { 7613 if(isManagedProfile(userHandle)) { 7614 throw new SecurityException("You can not " + message + " for a managed profile."); 7615 } 7616 } 7617 7618 private void enforceDeviceOwnerOrManageUsers() { 7619 synchronized (this) { 7620 if (getActiveAdminWithPolicyForUidLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 7621 mInjector.binderGetCallingUid()) != null) { 7622 return; 7623 } 7624 } 7625 enforceManageUsers(); 7626 } 7627 7628 private void enforceProfileOwnerOrSystemUser() { 7629 synchronized (this) { 7630 if (getActiveAdminWithPolicyForUidLocked(null, 7631 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7632 != null) { 7633 return; 7634 } 7635 } 7636 Preconditions.checkState(isCallerWithSystemUid(), 7637 "Only profile owner, device owner and system may call this method."); 7638 } 7639 7640 private void enforceProfileOwnerOrFullCrossUsersPermission(int userId) { 7641 if (userId == mInjector.userHandleGetCallingUserId()) { 7642 synchronized (this) { 7643 if (getActiveAdminWithPolicyForUidLocked(null, 7644 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7645 != null) { 7646 // Device Owner/Profile Owner may access the user it runs on. 7647 return; 7648 } 7649 } 7650 } 7651 // Otherwise, INTERACT_ACROSS_USERS_FULL permission, system UID or root UID is required. 7652 enforceSystemUserOrPermission(android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 7653 } 7654 7655 private void ensureCallerPackage(@Nullable String packageName) { 7656 if (packageName == null) { 7657 Preconditions.checkState(isCallerWithSystemUid(), 7658 "Only caller can omit package name"); 7659 } else { 7660 final int callingUid = mInjector.binderGetCallingUid(); 7661 final int userId = mInjector.userHandleGetCallingUserId(); 7662 try { 7663 final ApplicationInfo ai = mIPackageManager.getApplicationInfo( 7664 packageName, 0, userId); 7665 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name"); 7666 } catch (RemoteException e) { 7667 // Shouldn't happen 7668 } 7669 } 7670 } 7671 7672 private boolean isCallerWithSystemUid() { 7673 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 7674 } 7675 7676 protected int getProfileParentId(int userHandle) { 7677 final long ident = mInjector.binderClearCallingIdentity(); 7678 try { 7679 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 7680 return parentUser != null ? parentUser.id : userHandle; 7681 } finally { 7682 mInjector.binderRestoreCallingIdentity(ident); 7683 } 7684 } 7685 7686 private int getCredentialOwner(int userHandle, boolean parent) { 7687 final long ident = mInjector.binderClearCallingIdentity(); 7688 try { 7689 if (parent) { 7690 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 7691 if (parentProfile != null) { 7692 userHandle = parentProfile.id; 7693 } 7694 } 7695 return mUserManager.getCredentialOwnerProfile(userHandle); 7696 } finally { 7697 mInjector.binderRestoreCallingIdentity(ident); 7698 } 7699 } 7700 7701 private boolean isManagedProfile(int userHandle) { 7702 final UserInfo user = getUserInfo(userHandle); 7703 return user != null && user.isManagedProfile(); 7704 } 7705 7706 private void enableIfNecessary(String packageName, int userId) { 7707 try { 7708 final ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 7709 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS, userId); 7710 if (ai.enabledSetting 7711 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 7712 mIPackageManager.setApplicationEnabledSetting(packageName, 7713 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 7714 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 7715 } 7716 } catch (RemoteException e) { 7717 } 7718 } 7719 7720 @Override 7721 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 7722 if (!DumpUtils.checkDumpPermission(mContext, LOG_TAG, pw)) return; 7723 7724 synchronized (this) { 7725 pw.println("Current Device Policy Manager state:"); 7726 7727 mOwners.dump(" ", pw); 7728 mDeviceAdminServiceController.dump(" ", pw); 7729 int userCount = mUserData.size(); 7730 for (int u = 0; u < userCount; u++) { 7731 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 7732 pw.println(); 7733 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 7734 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 7735 final int N = policy.mAdminList.size(); 7736 for (int i=0; i<N; i++) { 7737 ActiveAdmin ap = policy.mAdminList.get(i); 7738 if (ap != null) { 7739 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 7740 pw.println(":"); 7741 ap.dump(" ", pw); 7742 } 7743 } 7744 if (!policy.mRemovingAdmins.isEmpty()) { 7745 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 7746 + policy.mRemovingAdmins); 7747 } 7748 7749 pw.println(" "); 7750 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 7751 } 7752 pw.println(); 7753 mConstants.dump(" ", pw); 7754 pw.println(); 7755 pw.println(" Encryption Status: " + getEncryptionStatusName(getEncryptionStatus())); 7756 } 7757 } 7758 7759 private String getEncryptionStatusName(int encryptionStatus) { 7760 switch (encryptionStatus) { 7761 case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE: 7762 return "inactive"; 7763 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: 7764 return "block default key"; 7765 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE: 7766 return "block"; 7767 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER: 7768 return "per-user"; 7769 case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED: 7770 return "unsupported"; 7771 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING: 7772 return "activating"; 7773 default: 7774 return "unknown"; 7775 } 7776 } 7777 7778 @Override 7779 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 7780 ComponentName activity) { 7781 Preconditions.checkNotNull(who, "ComponentName is null"); 7782 final int userHandle = UserHandle.getCallingUserId(); 7783 synchronized (this) { 7784 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7785 7786 long id = mInjector.binderClearCallingIdentity(); 7787 try { 7788 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 7789 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 7790 } catch (RemoteException re) { 7791 // Shouldn't happen 7792 } finally { 7793 mInjector.binderRestoreCallingIdentity(id); 7794 } 7795 } 7796 } 7797 7798 @Override 7799 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 7800 Preconditions.checkNotNull(who, "ComponentName is null"); 7801 final int userHandle = UserHandle.getCallingUserId(); 7802 synchronized (this) { 7803 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7804 7805 long id = mInjector.binderClearCallingIdentity(); 7806 try { 7807 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 7808 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 7809 } catch (RemoteException re) { 7810 // Shouldn't happen 7811 } finally { 7812 mInjector.binderRestoreCallingIdentity(id); 7813 } 7814 } 7815 } 7816 7817 @Override 7818 public boolean setApplicationRestrictionsManagingPackage(ComponentName admin, 7819 String packageName) { 7820 try { 7821 setDelegatedScopePreO(admin, packageName, DELEGATION_APP_RESTRICTIONS); 7822 } catch (IllegalArgumentException e) { 7823 return false; 7824 } 7825 return true; 7826 } 7827 7828 @Override 7829 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 7830 final List<String> delegatePackages = getDelegatePackages(admin, 7831 DELEGATION_APP_RESTRICTIONS); 7832 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 7833 } 7834 7835 @Override 7836 public boolean isCallerApplicationRestrictionsManagingPackage(String callerPackage) { 7837 return isCallerDelegate(callerPackage, DELEGATION_APP_RESTRICTIONS); 7838 } 7839 7840 @Override 7841 public void setApplicationRestrictions(ComponentName who, String callerPackage, 7842 String packageName, Bundle settings) { 7843 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 7844 DELEGATION_APP_RESTRICTIONS); 7845 7846 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 7847 final long id = mInjector.binderClearCallingIdentity(); 7848 try { 7849 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 7850 } finally { 7851 mInjector.binderRestoreCallingIdentity(id); 7852 } 7853 } 7854 7855 @Override 7856 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 7857 PersistableBundle args, boolean parent) { 7858 if (!mHasFeature) { 7859 return; 7860 } 7861 Preconditions.checkNotNull(admin, "admin is null"); 7862 Preconditions.checkNotNull(agent, "agent is null"); 7863 final int userHandle = UserHandle.getCallingUserId(); 7864 synchronized (this) { 7865 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 7866 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 7867 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 7868 saveSettingsLocked(userHandle); 7869 } 7870 } 7871 7872 @Override 7873 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 7874 ComponentName agent, int userHandle, boolean parent) { 7875 if (!mHasFeature) { 7876 return null; 7877 } 7878 Preconditions.checkNotNull(agent, "agent null"); 7879 enforceFullCrossUsersPermission(userHandle); 7880 7881 synchronized (this) { 7882 final String componentName = agent.flattenToString(); 7883 if (admin != null) { 7884 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle, parent); 7885 if (ap == null) return null; 7886 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 7887 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 7888 List<PersistableBundle> result = new ArrayList<>(); 7889 result.add(trustAgentInfo.options); 7890 return result; 7891 } 7892 7893 // Return strictest policy for this user and profiles that are visible from this user. 7894 List<PersistableBundle> result = null; 7895 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 7896 // of the options. If any admin doesn't have options, discard options for the rest 7897 // and return null. 7898 List<ActiveAdmin> admins = 7899 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 7900 boolean allAdminsHaveOptions = true; 7901 final int N = admins.size(); 7902 for (int i = 0; i < N; i++) { 7903 final ActiveAdmin active = admins.get(i); 7904 7905 final boolean disablesTrust = (active.disabledKeyguardFeatures 7906 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 7907 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 7908 if (info != null && info.options != null && !info.options.isEmpty()) { 7909 if (disablesTrust) { 7910 if (result == null) { 7911 result = new ArrayList<>(); 7912 } 7913 result.add(info.options); 7914 } else { 7915 Log.w(LOG_TAG, "Ignoring admin " + active.info 7916 + " because it has trust options but doesn't declare " 7917 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 7918 } 7919 } else if (disablesTrust) { 7920 allAdminsHaveOptions = false; 7921 break; 7922 } 7923 } 7924 return allAdminsHaveOptions ? result : null; 7925 } 7926 } 7927 7928 @Override 7929 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 7930 Preconditions.checkNotNull(who, "ComponentName is null"); 7931 synchronized (this) { 7932 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7933 7934 int userHandle = UserHandle.getCallingUserId(); 7935 DevicePolicyData userData = getUserData(userHandle); 7936 userData.mRestrictionsProvider = permissionProvider; 7937 saveSettingsLocked(userHandle); 7938 } 7939 } 7940 7941 @Override 7942 public ComponentName getRestrictionsProvider(int userHandle) { 7943 synchronized (this) { 7944 if (!isCallerWithSystemUid()) { 7945 throw new SecurityException("Only the system can query the permission provider"); 7946 } 7947 DevicePolicyData userData = getUserData(userHandle); 7948 return userData != null ? userData.mRestrictionsProvider : null; 7949 } 7950 } 7951 7952 @Override 7953 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 7954 Preconditions.checkNotNull(who, "ComponentName is null"); 7955 int callingUserId = UserHandle.getCallingUserId(); 7956 synchronized (this) { 7957 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7958 7959 long id = mInjector.binderClearCallingIdentity(); 7960 try { 7961 UserInfo parent = mUserManager.getProfileParent(callingUserId); 7962 if (parent == null) { 7963 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 7964 + "parent"); 7965 return; 7966 } 7967 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 7968 mIPackageManager.addCrossProfileIntentFilter( 7969 filter, who.getPackageName(), callingUserId, parent.id, 0); 7970 } 7971 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 7972 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 7973 parent.id, callingUserId, 0); 7974 } 7975 } catch (RemoteException re) { 7976 // Shouldn't happen 7977 } finally { 7978 mInjector.binderRestoreCallingIdentity(id); 7979 } 7980 } 7981 } 7982 7983 @Override 7984 public void clearCrossProfileIntentFilters(ComponentName who) { 7985 Preconditions.checkNotNull(who, "ComponentName is null"); 7986 int callingUserId = UserHandle.getCallingUserId(); 7987 synchronized (this) { 7988 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7989 long id = mInjector.binderClearCallingIdentity(); 7990 try { 7991 UserInfo parent = mUserManager.getProfileParent(callingUserId); 7992 if (parent == null) { 7993 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 7994 + "parent"); 7995 return; 7996 } 7997 // Removing those that go from the managed profile to the parent. 7998 mIPackageManager.clearCrossProfileIntentFilters( 7999 callingUserId, who.getPackageName()); 8000 // And those that go from the parent to the managed profile. 8001 // If we want to support multiple managed profiles, we will have to only remove 8002 // those that have callingUserId as their target. 8003 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 8004 } catch (RemoteException re) { 8005 // Shouldn't happen 8006 } finally { 8007 mInjector.binderRestoreCallingIdentity(id); 8008 } 8009 } 8010 } 8011 8012 /** 8013 * @return true if all packages in enabledPackages are either in the list 8014 * permittedList or are a system app. 8015 */ 8016 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 8017 List<String> permittedList, int userIdToCheck) { 8018 long id = mInjector.binderClearCallingIdentity(); 8019 try { 8020 // If we have an enabled packages list for a managed profile the packages 8021 // we should check are installed for the parent user. 8022 UserInfo user = getUserInfo(userIdToCheck); 8023 if (user.isManagedProfile()) { 8024 userIdToCheck = user.profileGroupId; 8025 } 8026 8027 for (String enabledPackage : enabledPackages) { 8028 boolean systemService = false; 8029 try { 8030 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 8031 enabledPackage, PackageManager.MATCH_UNINSTALLED_PACKAGES, 8032 userIdToCheck); 8033 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 8034 } catch (RemoteException e) { 8035 Log.i(LOG_TAG, "Can't talk to package managed", e); 8036 } 8037 if (!systemService && !permittedList.contains(enabledPackage)) { 8038 return false; 8039 } 8040 } 8041 } finally { 8042 mInjector.binderRestoreCallingIdentity(id); 8043 } 8044 return true; 8045 } 8046 8047 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 8048 // Not using AccessibilityManager.getInstance because that guesses 8049 // at the user you require based on callingUid and caches for a given 8050 // process. 8051 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 8052 IAccessibilityManager service = iBinder == null 8053 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 8054 return new AccessibilityManager(mContext, service, userId); 8055 } 8056 8057 @Override 8058 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 8059 if (!mHasFeature) { 8060 return false; 8061 } 8062 Preconditions.checkNotNull(who, "ComponentName is null"); 8063 8064 if (packageList != null) { 8065 int userId = UserHandle.getCallingUserId(); 8066 List<AccessibilityServiceInfo> enabledServices = null; 8067 long id = mInjector.binderClearCallingIdentity(); 8068 try { 8069 UserInfo user = getUserInfo(userId); 8070 if (user.isManagedProfile()) { 8071 userId = user.profileGroupId; 8072 } 8073 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 8074 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 8075 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 8076 } finally { 8077 mInjector.binderRestoreCallingIdentity(id); 8078 } 8079 8080 if (enabledServices != null) { 8081 List<String> enabledPackages = new ArrayList<String>(); 8082 for (AccessibilityServiceInfo service : enabledServices) { 8083 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 8084 } 8085 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 8086 userId)) { 8087 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 8088 + "because it contains already enabled accesibility services."); 8089 return false; 8090 } 8091 } 8092 } 8093 8094 synchronized (this) { 8095 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8096 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8097 admin.permittedAccessiblityServices = packageList; 8098 saveSettingsLocked(UserHandle.getCallingUserId()); 8099 } 8100 return true; 8101 } 8102 8103 @Override 8104 public List getPermittedAccessibilityServices(ComponentName who) { 8105 if (!mHasFeature) { 8106 return null; 8107 } 8108 Preconditions.checkNotNull(who, "ComponentName is null"); 8109 8110 synchronized (this) { 8111 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8112 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8113 return admin.permittedAccessiblityServices; 8114 } 8115 } 8116 8117 @Override 8118 public List getPermittedAccessibilityServicesForUser(int userId) { 8119 if (!mHasFeature) { 8120 return null; 8121 } 8122 synchronized (this) { 8123 List<String> result = null; 8124 // If we have multiple profiles we return the intersection of the 8125 // permitted lists. This can happen in cases where we have a device 8126 // and profile owner. 8127 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 8128 for (int profileId : profileIds) { 8129 // Just loop though all admins, only device or profiles 8130 // owners can have permitted lists set. 8131 DevicePolicyData policy = getUserDataUnchecked(profileId); 8132 final int N = policy.mAdminList.size(); 8133 for (int j = 0; j < N; j++) { 8134 ActiveAdmin admin = policy.mAdminList.get(j); 8135 List<String> fromAdmin = admin.permittedAccessiblityServices; 8136 if (fromAdmin != null) { 8137 if (result == null) { 8138 result = new ArrayList<>(fromAdmin); 8139 } else { 8140 result.retainAll(fromAdmin); 8141 } 8142 } 8143 } 8144 } 8145 8146 // If we have a permitted list add all system accessibility services. 8147 if (result != null) { 8148 long id = mInjector.binderClearCallingIdentity(); 8149 try { 8150 UserInfo user = getUserInfo(userId); 8151 if (user.isManagedProfile()) { 8152 userId = user.profileGroupId; 8153 } 8154 AccessibilityManager accessibilityManager = 8155 getAccessibilityManagerForUser(userId); 8156 List<AccessibilityServiceInfo> installedServices = 8157 accessibilityManager.getInstalledAccessibilityServiceList(); 8158 8159 if (installedServices != null) { 8160 for (AccessibilityServiceInfo service : installedServices) { 8161 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 8162 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 8163 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 8164 result.add(serviceInfo.packageName); 8165 } 8166 } 8167 } 8168 } finally { 8169 mInjector.binderRestoreCallingIdentity(id); 8170 } 8171 } 8172 8173 return result; 8174 } 8175 } 8176 8177 @Override 8178 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 8179 int userHandle) { 8180 if (!mHasFeature) { 8181 return true; 8182 } 8183 Preconditions.checkNotNull(who, "ComponentName is null"); 8184 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 8185 if (!isCallerWithSystemUid()){ 8186 throw new SecurityException( 8187 "Only the system can query if an accessibility service is disabled by admin"); 8188 } 8189 synchronized (this) { 8190 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8191 if (admin == null) { 8192 return false; 8193 } 8194 if (admin.permittedAccessiblityServices == null) { 8195 return true; 8196 } 8197 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 8198 admin.permittedAccessiblityServices, userHandle); 8199 } 8200 } 8201 8202 private boolean checkCallerIsCurrentUserOrProfile() { 8203 final int callingUserId = UserHandle.getCallingUserId(); 8204 final long token = mInjector.binderClearCallingIdentity(); 8205 try { 8206 UserInfo currentUser; 8207 UserInfo callingUser = getUserInfo(callingUserId); 8208 try { 8209 currentUser = mInjector.getIActivityManager().getCurrentUser(); 8210 } catch (RemoteException e) { 8211 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 8212 return false; 8213 } 8214 8215 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 8216 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 8217 + "of a user that isn't the foreground user."); 8218 return false; 8219 } 8220 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 8221 Slog.e(LOG_TAG, "Cannot set permitted input methods " 8222 + "of a user that isn't the foreground user."); 8223 return false; 8224 } 8225 } finally { 8226 mInjector.binderRestoreCallingIdentity(token); 8227 } 8228 return true; 8229 } 8230 8231 @Override 8232 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 8233 if (!mHasFeature) { 8234 return false; 8235 } 8236 Preconditions.checkNotNull(who, "ComponentName is null"); 8237 8238 // TODO When InputMethodManager supports per user calls remove 8239 // this restriction. 8240 if (!checkCallerIsCurrentUserOrProfile()) { 8241 return false; 8242 } 8243 8244 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8245 if (packageList != null) { 8246 // InputMethodManager fetches input methods for current user. 8247 // So this can only be set when calling user is the current user 8248 // or parent is current user in case of managed profiles. 8249 InputMethodManager inputMethodManager = 8250 mContext.getSystemService(InputMethodManager.class); 8251 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 8252 8253 if (enabledImes != null) { 8254 List<String> enabledPackages = new ArrayList<String>(); 8255 for (InputMethodInfo ime : enabledImes) { 8256 enabledPackages.add(ime.getPackageName()); 8257 } 8258 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 8259 callingUserId)) { 8260 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 8261 + "because it contains already enabled input method."); 8262 return false; 8263 } 8264 } 8265 } 8266 8267 synchronized (this) { 8268 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8269 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8270 admin.permittedInputMethods = packageList; 8271 saveSettingsLocked(callingUserId); 8272 } 8273 return true; 8274 } 8275 8276 @Override 8277 public List getPermittedInputMethods(ComponentName who) { 8278 if (!mHasFeature) { 8279 return null; 8280 } 8281 Preconditions.checkNotNull(who, "ComponentName is null"); 8282 8283 synchronized (this) { 8284 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8285 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8286 return admin.permittedInputMethods; 8287 } 8288 } 8289 8290 @Override 8291 public List getPermittedInputMethodsForCurrentUser() { 8292 UserInfo currentUser; 8293 try { 8294 currentUser = mInjector.getIActivityManager().getCurrentUser(); 8295 } catch (RemoteException e) { 8296 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 8297 // Activity managed is dead, just allow all IMEs 8298 return null; 8299 } 8300 8301 int userId = currentUser.id; 8302 synchronized (this) { 8303 List<String> result = null; 8304 // If we have multiple profiles we return the intersection of the 8305 // permitted lists. This can happen in cases where we have a device 8306 // and profile owner. 8307 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 8308 for (int profileId : profileIds) { 8309 // Just loop though all admins, only device or profiles 8310 // owners can have permitted lists set. 8311 DevicePolicyData policy = getUserDataUnchecked(profileId); 8312 final int N = policy.mAdminList.size(); 8313 for (int j = 0; j < N; j++) { 8314 ActiveAdmin admin = policy.mAdminList.get(j); 8315 List<String> fromAdmin = admin.permittedInputMethods; 8316 if (fromAdmin != null) { 8317 if (result == null) { 8318 result = new ArrayList<String>(fromAdmin); 8319 } else { 8320 result.retainAll(fromAdmin); 8321 } 8322 } 8323 } 8324 } 8325 8326 // If we have a permitted list add all system input methods. 8327 if (result != null) { 8328 InputMethodManager inputMethodManager = 8329 mContext.getSystemService(InputMethodManager.class); 8330 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 8331 long id = mInjector.binderClearCallingIdentity(); 8332 try { 8333 if (imes != null) { 8334 for (InputMethodInfo ime : imes) { 8335 ServiceInfo serviceInfo = ime.getServiceInfo(); 8336 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 8337 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 8338 result.add(serviceInfo.packageName); 8339 } 8340 } 8341 } 8342 } finally { 8343 mInjector.binderRestoreCallingIdentity(id); 8344 } 8345 } 8346 return result; 8347 } 8348 } 8349 8350 @Override 8351 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 8352 int userHandle) { 8353 if (!mHasFeature) { 8354 return true; 8355 } 8356 Preconditions.checkNotNull(who, "ComponentName is null"); 8357 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 8358 if (!isCallerWithSystemUid()) { 8359 throw new SecurityException( 8360 "Only the system can query if an input method is disabled by admin"); 8361 } 8362 synchronized (this) { 8363 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8364 if (admin == null) { 8365 return false; 8366 } 8367 if (admin.permittedInputMethods == null) { 8368 return true; 8369 } 8370 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 8371 admin.permittedInputMethods, userHandle); 8372 } 8373 } 8374 8375 @Override 8376 public boolean setPermittedCrossProfileNotificationListeners( 8377 ComponentName who, List<String> packageList) { 8378 if (!mHasFeature) { 8379 return false; 8380 } 8381 Preconditions.checkNotNull(who, "ComponentName is null"); 8382 8383 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8384 if (!isManagedProfile(callingUserId)) { 8385 return false; 8386 } 8387 8388 synchronized (this) { 8389 ActiveAdmin admin = getActiveAdminForCallerLocked( 8390 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8391 admin.permittedNotificationListeners = packageList; 8392 saveSettingsLocked(callingUserId); 8393 } 8394 return true; 8395 } 8396 8397 @Override 8398 public List<String> getPermittedCrossProfileNotificationListeners(ComponentName who) { 8399 if (!mHasFeature) { 8400 return null; 8401 } 8402 Preconditions.checkNotNull(who, "ComponentName is null"); 8403 8404 synchronized (this) { 8405 ActiveAdmin admin = getActiveAdminForCallerLocked( 8406 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8407 return admin.permittedNotificationListeners; 8408 } 8409 } 8410 8411 @Override 8412 public boolean isNotificationListenerServicePermitted(String packageName, int userId) { 8413 if (!mHasFeature) { 8414 return true; 8415 } 8416 8417 Preconditions.checkStringNotEmpty(packageName, "packageName is null or empty"); 8418 if (!isCallerWithSystemUid()) { 8419 throw new SecurityException( 8420 "Only the system can query if a notification listener service is permitted"); 8421 } 8422 synchronized (this) { 8423 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 8424 if (profileOwner == null || profileOwner.permittedNotificationListeners == null) { 8425 return true; 8426 } 8427 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 8428 profileOwner.permittedNotificationListeners, userId); 8429 8430 } 8431 } 8432 8433 private void maybeSendAdminEnabledBroadcastLocked(int userHandle) { 8434 DevicePolicyData policyData = getUserData(userHandle); 8435 if (policyData.mAdminBroadcastPending) { 8436 // Send the initialization data to profile owner and delete the data 8437 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 8438 boolean clearInitBundle = true; 8439 if (admin != null) { 8440 PersistableBundle initBundle = policyData.mInitBundle; 8441 clearInitBundle = sendAdminCommandLocked(admin, 8442 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 8443 initBundle == null ? null : new Bundle(initBundle), 8444 null /* result receiver */, 8445 true /* send in foreground */); 8446 } 8447 if (clearInitBundle) { 8448 // If there's no admin or we've successfully called the admin, clear the init bundle 8449 // otherwise, keep it around 8450 policyData.mInitBundle = null; 8451 policyData.mAdminBroadcastPending = false; 8452 saveSettingsLocked(userHandle); 8453 } 8454 } 8455 } 8456 8457 @Override 8458 public UserHandle createAndManageUser(ComponentName admin, String name, 8459 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 8460 Preconditions.checkNotNull(admin, "admin is null"); 8461 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 8462 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 8463 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 8464 + admin + " are not in the same package"); 8465 } 8466 // Only allow the system user to use this method 8467 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 8468 throw new SecurityException("createAndManageUser was called from non-system user"); 8469 } 8470 final boolean ephemeral = (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0; 8471 final boolean demo = (flags & DevicePolicyManager.MAKE_USER_DEMO) != 0 8472 && UserManager.isDeviceInDemoMode(mContext); 8473 final boolean leaveAllSystemAppsEnabled = (flags & LEAVE_ALL_SYSTEM_APPS_ENABLED) != 0; 8474 // Create user. 8475 UserHandle user = null; 8476 synchronized (this) { 8477 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8478 8479 final long id = mInjector.binderClearCallingIdentity(); 8480 try { 8481 int userInfoFlags = 0; 8482 if (ephemeral) { 8483 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 8484 } 8485 if (demo) { 8486 userInfoFlags |= UserInfo.FLAG_DEMO; 8487 } 8488 String[] disallowedPackages = null; 8489 if (!leaveAllSystemAppsEnabled) { 8490 disallowedPackages = mOverlayPackagesProvider.getNonRequiredApps(admin, 8491 UserHandle.myUserId(), ACTION_PROVISION_MANAGED_USER).toArray( 8492 new String[0]); 8493 } 8494 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 8495 userInfoFlags, disallowedPackages); 8496 if (userInfo != null) { 8497 user = userInfo.getUserHandle(); 8498 } 8499 } finally { 8500 mInjector.binderRestoreCallingIdentity(id); 8501 } 8502 } 8503 if (user == null) { 8504 return null; 8505 } 8506 8507 final int userHandle = user.getIdentifier(); 8508 final Intent intent = new Intent(DevicePolicyManager.ACTION_MANAGED_USER_CREATED) 8509 .putExtra(Intent.EXTRA_USER_HANDLE, userHandle) 8510 .putExtra( 8511 DevicePolicyManager.EXTRA_PROVISIONING_LEAVE_ALL_SYSTEM_APPS_ENABLED, 8512 leaveAllSystemAppsEnabled) 8513 .setPackage(MANAGED_PROVISIONING_PKG) 8514 .addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 8515 mContext.sendBroadcastAsUser(intent, UserHandle.SYSTEM); 8516 8517 final long id = mInjector.binderClearCallingIdentity(); 8518 try { 8519 final String adminPkg = admin.getPackageName(); 8520 try { 8521 // Install the profile owner if not present. 8522 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 8523 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle, 8524 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8525 } 8526 } catch (RemoteException e) { 8527 // Does not happen, same process 8528 } 8529 8530 // Set admin. 8531 setActiveAdmin(profileOwner, true, userHandle); 8532 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 8533 setProfileOwner(profileOwner, ownerName, userHandle); 8534 8535 synchronized (this) { 8536 DevicePolicyData policyData = getUserData(userHandle); 8537 policyData.mInitBundle = adminExtras; 8538 policyData.mAdminBroadcastPending = true; 8539 saveSettingsLocked(userHandle); 8540 } 8541 8542 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 8543 Settings.Secure.putIntForUser(mContext.getContentResolver(), 8544 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 8545 } 8546 8547 if ((flags & START_USER_IN_BACKGROUND) != 0) { 8548 try { 8549 mInjector.getIActivityManager().startUserInBackground(userHandle); 8550 } catch (RemoteException re) { 8551 // Does not happen, same process 8552 } 8553 } 8554 8555 return user; 8556 } catch (Throwable re) { 8557 mUserManager.removeUser(userHandle); 8558 return null; 8559 } finally { 8560 mInjector.binderRestoreCallingIdentity(id); 8561 } 8562 } 8563 8564 @Override 8565 public boolean removeUser(ComponentName who, UserHandle userHandle) { 8566 Preconditions.checkNotNull(who, "ComponentName is null"); 8567 synchronized (this) { 8568 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8569 } 8570 8571 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8572 final long id = mInjector.binderClearCallingIdentity(); 8573 try { 8574 String restriction = isManagedProfile(userHandle.getIdentifier()) 8575 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE 8576 : UserManager.DISALLOW_REMOVE_USER; 8577 if (isAdminAffectedByRestriction(who, restriction, callingUserId)) { 8578 Log.w(LOG_TAG, "The device owner cannot remove a user because " 8579 + restriction + " is enabled, and was not set by the device owner"); 8580 return false; 8581 } 8582 return mUserManagerInternal.removeUserEvenWhenDisallowed(userHandle.getIdentifier()); 8583 } finally { 8584 mInjector.binderRestoreCallingIdentity(id); 8585 } 8586 } 8587 8588 private boolean isAdminAffectedByRestriction( 8589 ComponentName admin, String userRestriction, int userId) { 8590 switch(mUserManager.getUserRestrictionSource(userRestriction, UserHandle.of(userId))) { 8591 case UserManager.RESTRICTION_NOT_SET: 8592 return false; 8593 case UserManager.RESTRICTION_SOURCE_DEVICE_OWNER: 8594 return !isDeviceOwner(admin, userId); 8595 case UserManager.RESTRICTION_SOURCE_PROFILE_OWNER: 8596 return !isProfileOwner(admin, userId); 8597 default: 8598 return true; 8599 } 8600 } 8601 8602 @Override 8603 public boolean switchUser(ComponentName who, UserHandle userHandle) { 8604 Preconditions.checkNotNull(who, "ComponentName is null"); 8605 synchronized (this) { 8606 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8607 8608 long id = mInjector.binderClearCallingIdentity(); 8609 try { 8610 int userId = UserHandle.USER_SYSTEM; 8611 if (userHandle != null) { 8612 userId = userHandle.getIdentifier(); 8613 } 8614 return mInjector.getIActivityManager().switchUser(userId); 8615 } catch (RemoteException e) { 8616 Log.e(LOG_TAG, "Couldn't switch user", e); 8617 return false; 8618 } finally { 8619 mInjector.binderRestoreCallingIdentity(id); 8620 } 8621 } 8622 } 8623 8624 @Override 8625 public boolean stopUser(ComponentName who, UserHandle userHandle) { 8626 Preconditions.checkNotNull(who, "ComponentName is null"); 8627 8628 synchronized (this) { 8629 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8630 } 8631 8632 final int userId = userHandle.getIdentifier(); 8633 if (isManagedProfile(userId)) { 8634 Log.w(LOG_TAG, "Managed profile cannot be stopped"); 8635 return false; 8636 } 8637 8638 final long id = mInjector.binderClearCallingIdentity(); 8639 try { 8640 return mInjector.getIActivityManager().stopUser(userId, true /*force*/, null) 8641 == USER_OP_SUCCESS; 8642 } catch (RemoteException e) { 8643 // Same process, should not happen. 8644 return false; 8645 } finally { 8646 mInjector.binderRestoreCallingIdentity(id); 8647 } 8648 } 8649 8650 @Override 8651 public boolean logoutUser(ComponentName who) { 8652 Preconditions.checkNotNull(who, "ComponentName is null"); 8653 8654 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8655 synchronized (this) { 8656 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8657 if (!isUserAffiliatedWithDeviceLocked(callingUserId)) { 8658 throw new SecurityException("Admin " + who + 8659 " is neither the device owner or affiliated user's profile owner."); 8660 } 8661 } 8662 8663 if (isManagedProfile(callingUserId)) { 8664 Log.w(LOG_TAG, "Managed profile cannot be logout"); 8665 return false; 8666 } 8667 8668 final long id = mInjector.binderClearCallingIdentity(); 8669 try { 8670 if (!mInjector.getIActivityManager().switchUser(UserHandle.USER_SYSTEM)) { 8671 Log.w(LOG_TAG, "Failed to switch to primary user"); 8672 return false; 8673 } 8674 return mInjector.getIActivityManager().stopUser(callingUserId, true /*force*/, null) 8675 == USER_OP_SUCCESS; 8676 } catch (RemoteException e) { 8677 // Same process, should not happen. 8678 return false; 8679 } finally { 8680 mInjector.binderRestoreCallingIdentity(id); 8681 } 8682 } 8683 8684 @Override 8685 public List<UserHandle> getSecondaryUsers(ComponentName who) { 8686 Preconditions.checkNotNull(who, "ComponentName is null"); 8687 synchronized (this) { 8688 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8689 } 8690 8691 final long id = mInjector.binderClearCallingIdentity(); 8692 try { 8693 final List<UserInfo> userInfos = mInjector.getUserManager().getUsers(true 8694 /*excludeDying*/); 8695 final List<UserHandle> userHandles = new ArrayList<>(); 8696 for (UserInfo userInfo : userInfos) { 8697 UserHandle userHandle = userInfo.getUserHandle(); 8698 if (!userHandle.isSystem() && !isManagedProfile(userHandle.getIdentifier())) { 8699 userHandles.add(userInfo.getUserHandle()); 8700 } 8701 } 8702 return userHandles; 8703 } finally { 8704 mInjector.binderRestoreCallingIdentity(id); 8705 } 8706 } 8707 8708 @Override 8709 public boolean isEphemeralUser(ComponentName who) { 8710 Preconditions.checkNotNull(who, "ComponentName is null"); 8711 synchronized (this) { 8712 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8713 } 8714 8715 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8716 final long id = mInjector.binderClearCallingIdentity(); 8717 try { 8718 return mInjector.getUserManager().isUserEphemeral(callingUserId); 8719 } finally { 8720 mInjector.binderRestoreCallingIdentity(id); 8721 } 8722 } 8723 8724 @Override 8725 public Bundle getApplicationRestrictions(ComponentName who, String callerPackage, 8726 String packageName) { 8727 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8728 DELEGATION_APP_RESTRICTIONS); 8729 8730 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 8731 final long id = mInjector.binderClearCallingIdentity(); 8732 try { 8733 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 8734 // if no restrictions were saved, mUserManager.getApplicationRestrictions 8735 // returns null, but DPM method should return an empty Bundle as per JavaDoc 8736 return bundle != null ? bundle : Bundle.EMPTY; 8737 } finally { 8738 mInjector.binderRestoreCallingIdentity(id); 8739 } 8740 } 8741 8742 @Override 8743 public String[] setPackagesSuspended(ComponentName who, String callerPackage, 8744 String[] packageNames, boolean suspended) { 8745 int callingUserId = UserHandle.getCallingUserId(); 8746 synchronized (this) { 8747 // Ensure the caller is a DO/PO or a package access delegate. 8748 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8749 DELEGATION_PACKAGE_ACCESS); 8750 8751 long id = mInjector.binderClearCallingIdentity(); 8752 try { 8753 return mIPackageManager.setPackagesSuspendedAsUser( 8754 packageNames, suspended, callingUserId); 8755 } catch (RemoteException re) { 8756 // Shouldn't happen. 8757 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 8758 } finally { 8759 mInjector.binderRestoreCallingIdentity(id); 8760 } 8761 return packageNames; 8762 } 8763 } 8764 8765 @Override 8766 public boolean isPackageSuspended(ComponentName who, String callerPackage, String packageName) { 8767 int callingUserId = UserHandle.getCallingUserId(); 8768 synchronized (this) { 8769 // Ensure the caller is a DO/PO or a package access delegate. 8770 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8771 DELEGATION_PACKAGE_ACCESS); 8772 8773 long id = mInjector.binderClearCallingIdentity(); 8774 try { 8775 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 8776 } catch (RemoteException re) { 8777 // Shouldn't happen. 8778 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 8779 } finally { 8780 mInjector.binderRestoreCallingIdentity(id); 8781 } 8782 return false; 8783 } 8784 } 8785 8786 @Override 8787 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 8788 Preconditions.checkNotNull(who, "ComponentName is null"); 8789 if (!UserRestrictionsUtils.isValidRestriction(key)) { 8790 return; 8791 } 8792 8793 final int userHandle = mInjector.userHandleGetCallingUserId(); 8794 synchronized (this) { 8795 final ActiveAdmin activeAdmin = 8796 getActiveAdminForCallerLocked(who, 8797 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8798 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 8799 if (isDeviceOwner) { 8800 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 8801 throw new SecurityException("Device owner cannot set user restriction " + key); 8802 } 8803 } else { // profile owner 8804 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 8805 throw new SecurityException("Profile owner cannot set user restriction " + key); 8806 } 8807 } 8808 8809 // Save the restriction to ActiveAdmin. 8810 final Bundle restrictions = activeAdmin.ensureUserRestrictions(); 8811 if (enabledFromThisOwner) { 8812 restrictions.putBoolean(key, true); 8813 } else { 8814 restrictions.remove(key); 8815 } 8816 saveUserRestrictionsLocked(userHandle); 8817 } 8818 } 8819 8820 private void saveUserRestrictionsLocked(int userId) { 8821 saveSettingsLocked(userId); 8822 pushUserRestrictions(userId); 8823 sendChangedNotification(userId); 8824 } 8825 8826 private void pushUserRestrictions(int userId) { 8827 synchronized (this) { 8828 final boolean isDeviceOwner = mOwners.isDeviceOwnerUserId(userId); 8829 final Bundle userRestrictions; 8830 // Whether device owner enforces camera restriction. 8831 boolean disallowCameraGlobally = false; 8832 8833 if (isDeviceOwner) { 8834 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 8835 if (deviceOwner == null) { 8836 return; // Shouldn't happen. 8837 } 8838 userRestrictions = deviceOwner.userRestrictions; 8839 // DO can disable camera globally. 8840 disallowCameraGlobally = deviceOwner.disableCamera; 8841 } else { 8842 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 8843 userRestrictions = profileOwner != null ? profileOwner.userRestrictions : null; 8844 } 8845 8846 // Whether any admin enforces camera restriction. 8847 final int cameraRestrictionScope = 8848 getCameraRestrictionScopeLocked(userId, disallowCameraGlobally); 8849 8850 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, userRestrictions, 8851 isDeviceOwner, cameraRestrictionScope); 8852 } 8853 } 8854 8855 /** 8856 * Get the scope of camera restriction for a given user if any. 8857 */ 8858 private int getCameraRestrictionScopeLocked(int userId, boolean disallowCameraGlobally) { 8859 if (disallowCameraGlobally) { 8860 return UserManagerInternal.CAMERA_DISABLED_GLOBALLY; 8861 } else if (getCameraDisabled( 8862 /* who= */ null, userId, /* mergeDeviceOwnerRestriction= */ false)) { 8863 return UserManagerInternal.CAMERA_DISABLED_LOCALLY; 8864 } 8865 return UserManagerInternal.CAMERA_NOT_DISABLED; 8866 } 8867 8868 @Override 8869 public Bundle getUserRestrictions(ComponentName who) { 8870 if (!mHasFeature) { 8871 return null; 8872 } 8873 Preconditions.checkNotNull(who, "ComponentName is null"); 8874 synchronized (this) { 8875 final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who, 8876 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8877 return activeAdmin.userRestrictions; 8878 } 8879 } 8880 8881 @Override 8882 public boolean setApplicationHidden(ComponentName who, String callerPackage, String packageName, 8883 boolean hidden) { 8884 int callingUserId = UserHandle.getCallingUserId(); 8885 synchronized (this) { 8886 // Ensure the caller is a DO/PO or a package access delegate. 8887 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8888 DELEGATION_PACKAGE_ACCESS); 8889 8890 long id = mInjector.binderClearCallingIdentity(); 8891 try { 8892 return mIPackageManager.setApplicationHiddenSettingAsUser( 8893 packageName, hidden, callingUserId); 8894 } catch (RemoteException re) { 8895 // shouldn't happen 8896 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 8897 } finally { 8898 mInjector.binderRestoreCallingIdentity(id); 8899 } 8900 return false; 8901 } 8902 } 8903 8904 @Override 8905 public boolean isApplicationHidden(ComponentName who, String callerPackage, 8906 String packageName) { 8907 int callingUserId = UserHandle.getCallingUserId(); 8908 synchronized (this) { 8909 // Ensure the caller is a DO/PO or a package access delegate. 8910 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8911 DELEGATION_PACKAGE_ACCESS); 8912 8913 long id = mInjector.binderClearCallingIdentity(); 8914 try { 8915 return mIPackageManager.getApplicationHiddenSettingAsUser( 8916 packageName, callingUserId); 8917 } catch (RemoteException re) { 8918 // shouldn't happen 8919 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 8920 } finally { 8921 mInjector.binderRestoreCallingIdentity(id); 8922 } 8923 return false; 8924 } 8925 } 8926 8927 @Override 8928 public void enableSystemApp(ComponentName who, String callerPackage, String packageName) { 8929 synchronized (this) { 8930 // Ensure the caller is a DO/PO or an enable system app delegate. 8931 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8932 DELEGATION_ENABLE_SYSTEM_APP); 8933 8934 final boolean isDemo = isCurrentUserDemo(); 8935 8936 int userId = UserHandle.getCallingUserId(); 8937 long id = mInjector.binderClearCallingIdentity(); 8938 8939 try { 8940 if (VERBOSE_LOG) { 8941 Slog.v(LOG_TAG, "installing " + packageName + " for " 8942 + userId); 8943 } 8944 8945 int parentUserId = getProfileParentId(userId); 8946 if (!isDemo && !isSystemApp(mIPackageManager, packageName, parentUserId)) { 8947 throw new IllegalArgumentException("Only system apps can be enabled this way."); 8948 } 8949 8950 // Install the app. 8951 mIPackageManager.installExistingPackageAsUser(packageName, userId, 8952 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8953 if (isDemo) { 8954 // Ensure the app is also ENABLED for demo users. 8955 mIPackageManager.setApplicationEnabledSetting(packageName, 8956 PackageManager.COMPONENT_ENABLED_STATE_ENABLED, 8957 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 8958 } 8959 } catch (RemoteException re) { 8960 // shouldn't happen 8961 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 8962 } finally { 8963 mInjector.binderRestoreCallingIdentity(id); 8964 } 8965 } 8966 } 8967 8968 @Override 8969 public int enableSystemAppWithIntent(ComponentName who, String callerPackage, Intent intent) { 8970 synchronized (this) { 8971 // Ensure the caller is a DO/PO or an enable system app delegate. 8972 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8973 DELEGATION_ENABLE_SYSTEM_APP); 8974 8975 int userId = UserHandle.getCallingUserId(); 8976 long id = mInjector.binderClearCallingIdentity(); 8977 8978 try { 8979 int parentUserId = getProfileParentId(userId); 8980 List<ResolveInfo> activitiesToEnable = mIPackageManager 8981 .queryIntentActivities(intent, 8982 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 8983 PackageManager.MATCH_DIRECT_BOOT_AWARE 8984 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 8985 parentUserId) 8986 .getList(); 8987 8988 if (VERBOSE_LOG) { 8989 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 8990 } 8991 int numberOfAppsInstalled = 0; 8992 if (activitiesToEnable != null) { 8993 for (ResolveInfo info : activitiesToEnable) { 8994 if (info.activityInfo != null) { 8995 String packageName = info.activityInfo.packageName; 8996 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 8997 numberOfAppsInstalled++; 8998 mIPackageManager.installExistingPackageAsUser(packageName, userId, 8999 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 9000 } else { 9001 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 9002 + " system app"); 9003 } 9004 } 9005 } 9006 } 9007 return numberOfAppsInstalled; 9008 } catch (RemoteException e) { 9009 // shouldn't happen 9010 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 9011 return 0; 9012 } finally { 9013 mInjector.binderRestoreCallingIdentity(id); 9014 } 9015 } 9016 } 9017 9018 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 9019 throws RemoteException { 9020 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, MATCH_UNINSTALLED_PACKAGES, 9021 userId); 9022 if (appInfo == null) { 9023 throw new IllegalArgumentException("The application " + packageName + 9024 " is not present on this device"); 9025 } 9026 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 9027 } 9028 9029 @Override 9030 public boolean installExistingPackage(ComponentName who, String callerPackage, 9031 String packageName) { 9032 synchronized (this) { 9033 // Ensure the caller is a PO or an install existing package delegate 9034 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9035 DELEGATION_INSTALL_EXISTING_PACKAGE); 9036 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9037 if (!isUserAffiliatedWithDeviceLocked(callingUserId)) { 9038 throw new SecurityException("Admin " + who + 9039 " is neither the device owner or affiliated user's profile owner."); 9040 } 9041 9042 final long id = mInjector.binderClearCallingIdentity(); 9043 try { 9044 if (VERBOSE_LOG) { 9045 Slog.v(LOG_TAG, "installing " + packageName + " for " 9046 + callingUserId); 9047 } 9048 9049 // Install the package. 9050 return mIPackageManager.installExistingPackageAsUser(packageName, callingUserId, 9051 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY) 9052 == PackageManager.INSTALL_SUCCEEDED; 9053 } catch (RemoteException re) { 9054 // shouldn't happen 9055 return false; 9056 } finally { 9057 mInjector.binderRestoreCallingIdentity(id); 9058 } 9059 } 9060 } 9061 9062 @Override 9063 public void setAccountManagementDisabled(ComponentName who, String accountType, 9064 boolean disabled) { 9065 if (!mHasFeature) { 9066 return; 9067 } 9068 Preconditions.checkNotNull(who, "ComponentName is null"); 9069 synchronized (this) { 9070 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 9071 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9072 if (disabled) { 9073 ap.accountTypesWithManagementDisabled.add(accountType); 9074 } else { 9075 ap.accountTypesWithManagementDisabled.remove(accountType); 9076 } 9077 saveSettingsLocked(UserHandle.getCallingUserId()); 9078 } 9079 } 9080 9081 @Override 9082 public String[] getAccountTypesWithManagementDisabled() { 9083 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 9084 } 9085 9086 @Override 9087 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 9088 enforceFullCrossUsersPermission(userId); 9089 if (!mHasFeature) { 9090 return null; 9091 } 9092 synchronized (this) { 9093 DevicePolicyData policy = getUserData(userId); 9094 final int N = policy.mAdminList.size(); 9095 ArraySet<String> resultSet = new ArraySet<>(); 9096 for (int i = 0; i < N; i++) { 9097 ActiveAdmin admin = policy.mAdminList.get(i); 9098 resultSet.addAll(admin.accountTypesWithManagementDisabled); 9099 } 9100 return resultSet.toArray(new String[resultSet.size()]); 9101 } 9102 } 9103 9104 @Override 9105 public void setUninstallBlocked(ComponentName who, String callerPackage, String packageName, 9106 boolean uninstallBlocked) { 9107 final int userId = UserHandle.getCallingUserId(); 9108 synchronized (this) { 9109 // Ensure the caller is a DO/PO or a block uninstall delegate 9110 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9111 DELEGATION_BLOCK_UNINSTALL); 9112 9113 long id = mInjector.binderClearCallingIdentity(); 9114 try { 9115 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 9116 } catch (RemoteException re) { 9117 // Shouldn't happen. 9118 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 9119 } finally { 9120 mInjector.binderRestoreCallingIdentity(id); 9121 } 9122 } 9123 } 9124 9125 @Override 9126 public boolean isUninstallBlocked(ComponentName who, String packageName) { 9127 // This function should return true if and only if the package is blocked by 9128 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 9129 // when the package is a system app, or when it is an active device admin. 9130 final int userId = UserHandle.getCallingUserId(); 9131 9132 synchronized (this) { 9133 if (who != null) { 9134 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9135 } 9136 9137 long id = mInjector.binderClearCallingIdentity(); 9138 try { 9139 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 9140 } catch (RemoteException re) { 9141 // Shouldn't happen. 9142 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 9143 } finally { 9144 mInjector.binderRestoreCallingIdentity(id); 9145 } 9146 } 9147 return false; 9148 } 9149 9150 @Override 9151 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 9152 if (!mHasFeature) { 9153 return; 9154 } 9155 Preconditions.checkNotNull(who, "ComponentName is null"); 9156 synchronized (this) { 9157 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9158 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9159 if (admin.disableCallerId != disabled) { 9160 admin.disableCallerId = disabled; 9161 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 9162 } 9163 } 9164 } 9165 9166 @Override 9167 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 9168 if (!mHasFeature) { 9169 return false; 9170 } 9171 Preconditions.checkNotNull(who, "ComponentName is null"); 9172 synchronized (this) { 9173 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9174 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9175 return admin.disableCallerId; 9176 } 9177 } 9178 9179 @Override 9180 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 9181 enforceCrossUsersPermission(userId); 9182 synchronized (this) { 9183 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9184 return (admin != null) ? admin.disableCallerId : false; 9185 } 9186 } 9187 9188 @Override 9189 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 9190 if (!mHasFeature) { 9191 return; 9192 } 9193 Preconditions.checkNotNull(who, "ComponentName is null"); 9194 synchronized (this) { 9195 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9196 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9197 if (admin.disableContactsSearch != disabled) { 9198 admin.disableContactsSearch = disabled; 9199 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 9200 } 9201 } 9202 } 9203 9204 @Override 9205 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 9206 if (!mHasFeature) { 9207 return false; 9208 } 9209 Preconditions.checkNotNull(who, "ComponentName is null"); 9210 synchronized (this) { 9211 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9212 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9213 return admin.disableContactsSearch; 9214 } 9215 } 9216 9217 @Override 9218 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 9219 enforceCrossUsersPermission(userId); 9220 synchronized (this) { 9221 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9222 return (admin != null) ? admin.disableContactsSearch : false; 9223 } 9224 } 9225 9226 @Override 9227 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 9228 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 9229 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 9230 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 9231 final int callingUserId = UserHandle.getCallingUserId(); 9232 9233 final long ident = mInjector.binderClearCallingIdentity(); 9234 try { 9235 synchronized (this) { 9236 final int managedUserId = getManagedUserId(callingUserId); 9237 if (managedUserId < 0) { 9238 return; 9239 } 9240 if (isCrossProfileQuickContactDisabled(managedUserId)) { 9241 if (VERBOSE_LOG) { 9242 Log.v(LOG_TAG, 9243 "Cross-profile contacts access disabled for user " + managedUserId); 9244 } 9245 return; 9246 } 9247 ContactsInternal.startQuickContactWithErrorToastForUser( 9248 mContext, intent, new UserHandle(managedUserId)); 9249 } 9250 } finally { 9251 mInjector.binderRestoreCallingIdentity(ident); 9252 } 9253 } 9254 9255 /** 9256 * @return true if cross-profile QuickContact is disabled 9257 */ 9258 private boolean isCrossProfileQuickContactDisabled(int userId) { 9259 return getCrossProfileCallerIdDisabledForUser(userId) 9260 && getCrossProfileContactsSearchDisabledForUser(userId); 9261 } 9262 9263 /** 9264 * @return the user ID of the managed user that is linked to the current user, if any. 9265 * Otherwise -1. 9266 */ 9267 public int getManagedUserId(int callingUserId) { 9268 if (VERBOSE_LOG) { 9269 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 9270 } 9271 9272 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 9273 if (ui.id == callingUserId || !ui.isManagedProfile()) { 9274 continue; // Caller user self, or not a managed profile. Skip. 9275 } 9276 if (VERBOSE_LOG) { 9277 Log.v(LOG_TAG, "Managed user=" + ui.id); 9278 } 9279 return ui.id; 9280 } 9281 if (VERBOSE_LOG) { 9282 Log.v(LOG_TAG, "Managed user not found."); 9283 } 9284 return -1; 9285 } 9286 9287 @Override 9288 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 9289 if (!mHasFeature) { 9290 return; 9291 } 9292 Preconditions.checkNotNull(who, "ComponentName is null"); 9293 synchronized (this) { 9294 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9295 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9296 if (admin.disableBluetoothContactSharing != disabled) { 9297 admin.disableBluetoothContactSharing = disabled; 9298 saveSettingsLocked(UserHandle.getCallingUserId()); 9299 } 9300 } 9301 } 9302 9303 @Override 9304 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 9305 if (!mHasFeature) { 9306 return false; 9307 } 9308 Preconditions.checkNotNull(who, "ComponentName is null"); 9309 synchronized (this) { 9310 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9311 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9312 return admin.disableBluetoothContactSharing; 9313 } 9314 } 9315 9316 @Override 9317 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 9318 // TODO: Should there be a check to make sure this relationship is 9319 // within a profile group? 9320 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 9321 synchronized (this) { 9322 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9323 return (admin != null) ? admin.disableBluetoothContactSharing : false; 9324 } 9325 } 9326 9327 @Override 9328 public void setLockTaskPackages(ComponentName who, String[] packages) 9329 throws SecurityException { 9330 Preconditions.checkNotNull(who, "ComponentName is null"); 9331 Preconditions.checkNotNull(packages, "packages is null"); 9332 9333 synchronized (this) { 9334 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9335 final int userHandle = mInjector.userHandleGetCallingUserId(); 9336 if (isUserAffiliatedWithDeviceLocked(userHandle)) { 9337 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 9338 } else { 9339 throw new SecurityException("Admin " + who + 9340 " is neither the device owner or affiliated user's profile owner."); 9341 } 9342 } 9343 } 9344 9345 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 9346 DevicePolicyData policy = getUserData(userHandle); 9347 policy.mLockTaskPackages = packages; 9348 9349 // Store the settings persistently. 9350 saveSettingsLocked(userHandle); 9351 updateLockTaskPackagesLocked(packages, userHandle); 9352 } 9353 9354 @Override 9355 public String[] getLockTaskPackages(ComponentName who) { 9356 Preconditions.checkNotNull(who, "ComponentName is null"); 9357 9358 final int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 9359 synchronized (this) { 9360 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9361 if (!isUserAffiliatedWithDeviceLocked(userHandle)) { 9362 throw new SecurityException("Admin " + who + 9363 " is neither the device owner or affiliated user's profile owner."); 9364 } 9365 9366 final List<String> packages = getUserData(userHandle).mLockTaskPackages; 9367 return packages.toArray(new String[packages.size()]); 9368 } 9369 } 9370 9371 @Override 9372 public boolean isLockTaskPermitted(String pkg) { 9373 final int userHandle = mInjector.userHandleGetCallingUserId(); 9374 synchronized (this) { 9375 return getUserData(userHandle).mLockTaskPackages.contains(pkg); 9376 } 9377 } 9378 9379 @Override 9380 public void setLockTaskFeatures(ComponentName who, int flags) { 9381 Preconditions.checkNotNull(who, "ComponentName is null"); 9382 final int userHandle = mInjector.userHandleGetCallingUserId(); 9383 synchronized (this) { 9384 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9385 if (!isUserAffiliatedWithDeviceLocked(userHandle)) { 9386 throw new SecurityException("Admin " + who + 9387 " is neither the device owner or affiliated user's profile owner."); 9388 } 9389 setLockTaskFeaturesLocked(userHandle, flags); 9390 } 9391 } 9392 9393 private void setLockTaskFeaturesLocked(int userHandle, int flags) { 9394 DevicePolicyData policy = getUserData(userHandle); 9395 policy.mLockTaskFeatures = flags; 9396 saveSettingsLocked(userHandle); 9397 updateLockTaskFeaturesLocked(flags, userHandle); 9398 } 9399 9400 @Override 9401 public int getLockTaskFeatures(ComponentName who) { 9402 Preconditions.checkNotNull(who, "ComponentName is null"); 9403 final int userHandle = mInjector.userHandleGetCallingUserId(); 9404 synchronized (this) { 9405 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9406 if (!isUserAffiliatedWithDeviceLocked(userHandle)) { 9407 throw new SecurityException("Admin " + who + 9408 " is neither the device owner or affiliated user's profile owner."); 9409 } 9410 return getUserData(userHandle).mLockTaskFeatures; 9411 } 9412 } 9413 9414 private void maybeClearLockTaskPolicyLocked() { 9415 final long ident = mInjector.binderClearCallingIdentity(); 9416 try { 9417 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 9418 for (int i = userInfos.size() - 1; i >= 0; i--) { 9419 int userId = userInfos.get(i).id; 9420 if (isUserAffiliatedWithDeviceLocked(userId)) { 9421 continue; 9422 } 9423 9424 final List<String> lockTaskPackages = getUserData(userId).mLockTaskPackages; 9425 if (!lockTaskPackages.isEmpty()) { 9426 Slog.d(LOG_TAG, 9427 "User id " + userId + " not affiliated. Clearing lock task packages"); 9428 setLockTaskPackagesLocked(userId, Collections.<String>emptyList()); 9429 } 9430 final int lockTaskFeatures = getUserData(userId).mLockTaskFeatures; 9431 if (lockTaskFeatures != DevicePolicyManager.LOCK_TASK_FEATURE_NONE){ 9432 Slog.d(LOG_TAG, 9433 "User id " + userId + " not affiliated. Clearing lock task features"); 9434 setLockTaskFeaturesLocked(userId, DevicePolicyManager.LOCK_TASK_FEATURE_NONE); 9435 } 9436 } 9437 } finally { 9438 mInjector.binderRestoreCallingIdentity(ident); 9439 } 9440 } 9441 9442 @Override 9443 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 9444 if (!isCallerWithSystemUid()) { 9445 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 9446 } 9447 synchronized (this) { 9448 final DevicePolicyData policy = getUserData(userHandle); 9449 9450 if (policy.mStatusBarDisabled) { 9451 // Status bar is managed by LockTaskController during LockTask, so we cancel this 9452 // policy when LockTask starts, and reapply it when LockTask ends 9453 setStatusBarDisabledInternal(!isEnabled, userHandle); 9454 } 9455 9456 Bundle adminExtras = new Bundle(); 9457 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 9458 for (ActiveAdmin admin : policy.mAdminList) { 9459 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 9460 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 9461 if (ownsDevice || ownsProfile) { 9462 if (isEnabled) { 9463 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 9464 adminExtras, null); 9465 } else { 9466 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 9467 } 9468 } 9469 } 9470 } 9471 } 9472 9473 @Override 9474 public void setGlobalSetting(ComponentName who, String setting, String value) { 9475 Preconditions.checkNotNull(who, "ComponentName is null"); 9476 9477 synchronized (this) { 9478 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9479 9480 // Some settings are no supported any more. However we do not want to throw a 9481 // SecurityException to avoid breaking apps. 9482 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 9483 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 9484 return; 9485 } 9486 9487 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting) 9488 && !UserManager.isDeviceInDemoMode(mContext)) { 9489 throw new SecurityException(String.format( 9490 "Permission denial: device owners cannot update %1$s", setting)); 9491 } 9492 9493 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 9494 // ignore if it contradicts an existing policy 9495 long timeMs = getMaximumTimeToLock( 9496 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 9497 if (timeMs > 0 && timeMs < Long.MAX_VALUE) { 9498 return; 9499 } 9500 } 9501 9502 long id = mInjector.binderClearCallingIdentity(); 9503 try { 9504 mInjector.settingsGlobalPutString(setting, value); 9505 } finally { 9506 mInjector.binderRestoreCallingIdentity(id); 9507 } 9508 } 9509 } 9510 9511 @Override 9512 public void setSystemSetting(ComponentName who, String setting, String value) { 9513 Preconditions.checkNotNull(who, "ComponentName is null"); 9514 Preconditions.checkStringNotEmpty(setting, "String setting is null or empty"); 9515 9516 synchronized (this) { 9517 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9518 9519 if (!SYSTEM_SETTINGS_WHITELIST.contains(setting)) { 9520 throw new SecurityException(String.format( 9521 "Permission denial: device owners cannot update %1$s", setting)); 9522 } 9523 9524 mInjector.binderWithCleanCallingIdentity(() -> mInjector.settingsSystemPutString( 9525 setting, value)); 9526 } 9527 } 9528 9529 @Override 9530 public boolean setTime(ComponentName who, long millis) { 9531 Preconditions.checkNotNull(who, "ComponentName is null in setTime"); 9532 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9533 // Don't allow set time when auto time is on. 9534 if (mInjector.settingsGlobalGetInt(Global.AUTO_TIME, 0) == 1) { 9535 return false; 9536 } 9537 mInjector.binderWithCleanCallingIdentity(() -> mInjector.getAlarmManager().setTime(millis)); 9538 return true; 9539 } 9540 9541 @Override 9542 public boolean setTimeZone(ComponentName who, String timeZone) { 9543 Preconditions.checkNotNull(who, "ComponentName is null in setTimeZone"); 9544 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9545 // Don't allow set timezone when auto timezone is on. 9546 if (mInjector.settingsGlobalGetInt(Global.AUTO_TIME_ZONE, 0) == 1) { 9547 return false; 9548 } 9549 mInjector.binderWithCleanCallingIdentity(() -> 9550 mInjector.getAlarmManager().setTimeZone(timeZone)); 9551 return true; 9552 } 9553 9554 @Override 9555 public void setSecureSetting(ComponentName who, String setting, String value) { 9556 Preconditions.checkNotNull(who, "ComponentName is null"); 9557 int callingUserId = mInjector.userHandleGetCallingUserId(); 9558 9559 synchronized (this) { 9560 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9561 9562 if (isDeviceOwner(who, callingUserId)) { 9563 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting) 9564 && !isCurrentUserDemo()) { 9565 throw new SecurityException(String.format( 9566 "Permission denial: Device owners cannot update %1$s", setting)); 9567 } 9568 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting) && !isCurrentUserDemo()) { 9569 throw new SecurityException(String.format( 9570 "Permission denial: Profile owners cannot update %1$s", setting)); 9571 } 9572 if (setting.equals(Settings.Secure.INSTALL_NON_MARKET_APPS)) { 9573 if (getTargetSdk(who.getPackageName(), callingUserId) >= Build.VERSION_CODES.O) { 9574 throw new UnsupportedOperationException(Settings.Secure.INSTALL_NON_MARKET_APPS 9575 + " is deprecated. Please use the user restriction " 9576 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES + " instead."); 9577 } 9578 if (!mUserManager.isManagedProfile(callingUserId)) { 9579 Slog.e(LOG_TAG, "Ignoring setSecureSetting request for " 9580 + setting + ". User restriction " 9581 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES 9582 + " should be used instead."); 9583 } else { 9584 try { 9585 setUserRestriction(who, UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, 9586 (Integer.parseInt(value) == 0) ? true : false); 9587 } catch (NumberFormatException exc) { 9588 Slog.e(LOG_TAG, "Invalid value: " + value + " for setting " + setting); 9589 } 9590 } 9591 return; 9592 } 9593 long id = mInjector.binderClearCallingIdentity(); 9594 try { 9595 if (Settings.Secure.DEFAULT_INPUT_METHOD.equals(setting)) { 9596 final String currentValue = mInjector.settingsSecureGetStringForUser( 9597 Settings.Secure.DEFAULT_INPUT_METHOD, callingUserId); 9598 if (!TextUtils.equals(currentValue, value)) { 9599 // Tell the content observer that the next change will be due to the owner 9600 // changing the value. There is a small race condition here that we cannot 9601 // avoid: Change notifications are sent asynchronously, so it is possible 9602 // that there are prior notifications queued up before the one we are about 9603 // to trigger. This is a corner case that will have no impact in practice. 9604 mSetupContentObserver.addPendingChangeByOwnerLocked(callingUserId); 9605 } 9606 getUserData(callingUserId).mCurrentInputMethodSet = true; 9607 saveSettingsLocked(callingUserId); 9608 } 9609 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 9610 } finally { 9611 mInjector.binderRestoreCallingIdentity(id); 9612 } 9613 } 9614 } 9615 9616 @Override 9617 public void setMasterVolumeMuted(ComponentName who, boolean on) { 9618 Preconditions.checkNotNull(who, "ComponentName is null"); 9619 synchronized (this) { 9620 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9621 setUserRestriction(who, UserManager.DISALLOW_UNMUTE_DEVICE, on); 9622 } 9623 } 9624 9625 @Override 9626 public boolean isMasterVolumeMuted(ComponentName who) { 9627 Preconditions.checkNotNull(who, "ComponentName is null"); 9628 synchronized (this) { 9629 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9630 9631 AudioManager audioManager = 9632 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 9633 return audioManager.isMasterMute(); 9634 } 9635 } 9636 9637 @Override 9638 public void setUserIcon(ComponentName who, Bitmap icon) { 9639 synchronized (this) { 9640 Preconditions.checkNotNull(who, "ComponentName is null"); 9641 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9642 9643 int userId = UserHandle.getCallingUserId(); 9644 long id = mInjector.binderClearCallingIdentity(); 9645 try { 9646 mUserManagerInternal.setUserIcon(userId, icon); 9647 } finally { 9648 mInjector.binderRestoreCallingIdentity(id); 9649 } 9650 } 9651 } 9652 9653 @Override 9654 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 9655 Preconditions.checkNotNull(who, "ComponentName is null"); 9656 final int userId = mInjector.userHandleGetCallingUserId(); 9657 synchronized (this) { 9658 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9659 if (!isUserAffiliatedWithDeviceLocked(userId)) { 9660 throw new SecurityException("Admin " + who + 9661 " is neither the device owner or affiliated user's profile owner."); 9662 } 9663 } 9664 9665 long ident = mInjector.binderClearCallingIdentity(); 9666 try { 9667 // disallow disabling the keyguard if a password is currently set 9668 if (disabled && mLockPatternUtils.isSecure(userId)) { 9669 return false; 9670 } 9671 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 9672 mInjector.getIWindowManager().dismissKeyguard(null); 9673 } catch (RemoteException e) { 9674 // Same process, does not happen. 9675 } finally { 9676 mInjector.binderRestoreCallingIdentity(ident); 9677 } 9678 return true; 9679 } 9680 9681 @Override 9682 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 9683 int userId = UserHandle.getCallingUserId(); 9684 synchronized (this) { 9685 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9686 if (!isUserAffiliatedWithDeviceLocked(userId)) { 9687 throw new SecurityException("Admin " + who + 9688 " is neither the device owner or affiliated user's profile owner."); 9689 } 9690 DevicePolicyData policy = getUserData(userId); 9691 if (policy.mStatusBarDisabled != disabled) { 9692 boolean isLockTaskMode = false; 9693 try { 9694 isLockTaskMode = mInjector.getIActivityManager().getLockTaskModeState() 9695 != LOCK_TASK_MODE_NONE; 9696 } catch (RemoteException e) { 9697 Slog.e(LOG_TAG, "Failed to get LockTask mode"); 9698 } 9699 if (!isLockTaskMode) { 9700 if (!setStatusBarDisabledInternal(disabled, userId)) { 9701 return false; 9702 } 9703 } 9704 policy.mStatusBarDisabled = disabled; 9705 saveSettingsLocked(userId); 9706 } 9707 } 9708 return true; 9709 } 9710 9711 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 9712 long ident = mInjector.binderClearCallingIdentity(); 9713 try { 9714 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 9715 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 9716 if (statusBarService != null) { 9717 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 9718 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 9719 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 9720 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 9721 return true; 9722 } 9723 } catch (RemoteException e) { 9724 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 9725 } finally { 9726 mInjector.binderRestoreCallingIdentity(ident); 9727 } 9728 return false; 9729 } 9730 9731 /** 9732 * We need to update the internal state of whether a user has completed setup or a 9733 * device has paired once. After that, we ignore any changes that reset the 9734 * Settings.Secure.USER_SETUP_COMPLETE or Settings.Secure.DEVICE_PAIRED change 9735 * as we don't trust any apps that might try to reset them. 9736 * <p> 9737 * Unfortunately, we don't know which user's setup state was changed, so we write all of 9738 * them. 9739 */ 9740 void updateUserSetupCompleteAndPaired() { 9741 List<UserInfo> users = mUserManager.getUsers(true); 9742 final int N = users.size(); 9743 for (int i = 0; i < N; i++) { 9744 int userHandle = users.get(i).id; 9745 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 9746 userHandle) != 0) { 9747 DevicePolicyData policy = getUserData(userHandle); 9748 if (!policy.mUserSetupComplete) { 9749 policy.mUserSetupComplete = true; 9750 synchronized (this) { 9751 saveSettingsLocked(userHandle); 9752 } 9753 } 9754 } 9755 if (mIsWatch && mInjector.settingsSecureGetIntForUser(Settings.Secure.DEVICE_PAIRED, 0, 9756 userHandle) != 0) { 9757 DevicePolicyData policy = getUserData(userHandle); 9758 if (!policy.mPaired) { 9759 policy.mPaired = true; 9760 synchronized (this) { 9761 saveSettingsLocked(userHandle); 9762 } 9763 } 9764 } 9765 } 9766 } 9767 9768 private class SetupContentObserver extends ContentObserver { 9769 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 9770 Settings.Secure.USER_SETUP_COMPLETE); 9771 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 9772 Settings.Global.DEVICE_PROVISIONED); 9773 private final Uri mPaired = Settings.Secure.getUriFor(Settings.Secure.DEVICE_PAIRED); 9774 private final Uri mDefaultImeChanged = Settings.Secure.getUriFor( 9775 Settings.Secure.DEFAULT_INPUT_METHOD); 9776 9777 @GuardedBy("DevicePolicyManagerService.this") 9778 private Set<Integer> mUserIdsWithPendingChangesByOwner = new ArraySet<>(); 9779 9780 public SetupContentObserver(Handler handler) { 9781 super(handler); 9782 } 9783 9784 void register() { 9785 mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 9786 mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 9787 if (mIsWatch) { 9788 mInjector.registerContentObserver(mPaired, false, this, UserHandle.USER_ALL); 9789 } 9790 mInjector.registerContentObserver(mDefaultImeChanged, false, this, UserHandle.USER_ALL); 9791 } 9792 9793 private void addPendingChangeByOwnerLocked(int userId) { 9794 mUserIdsWithPendingChangesByOwner.add(userId); 9795 } 9796 9797 @Override 9798 public void onChange(boolean selfChange, Uri uri, int userId) { 9799 if (mUserSetupComplete.equals(uri) || (mIsWatch && mPaired.equals(uri))) { 9800 updateUserSetupCompleteAndPaired(); 9801 } else if (mDeviceProvisioned.equals(uri)) { 9802 synchronized (DevicePolicyManagerService.this) { 9803 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 9804 // is delayed until device is marked as provisioned. 9805 setDeviceOwnerSystemPropertyLocked(); 9806 } 9807 } else if (mDefaultImeChanged.equals(uri)) { 9808 synchronized (DevicePolicyManagerService.this) { 9809 if (mUserIdsWithPendingChangesByOwner.contains(userId)) { 9810 // This change notification was triggered by the owner changing the current 9811 // IME. Ignore it. 9812 mUserIdsWithPendingChangesByOwner.remove(userId); 9813 } else { 9814 // This change notification was triggered by the user manually changing the 9815 // current IME. 9816 getUserData(userId).mCurrentInputMethodSet = false; 9817 saveSettingsLocked(userId); 9818 } 9819 } 9820 } 9821 } 9822 } 9823 9824 @VisibleForTesting 9825 final class LocalService extends DevicePolicyManagerInternal { 9826 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 9827 9828 @Override 9829 public List<String> getCrossProfileWidgetProviders(int profileId) { 9830 synchronized (DevicePolicyManagerService.this) { 9831 if (mOwners == null) { 9832 return Collections.emptyList(); 9833 } 9834 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 9835 if (ownerComponent == null) { 9836 return Collections.emptyList(); 9837 } 9838 9839 DevicePolicyData policy = getUserDataUnchecked(profileId); 9840 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 9841 9842 if (admin == null || admin.crossProfileWidgetProviders == null 9843 || admin.crossProfileWidgetProviders.isEmpty()) { 9844 return Collections.emptyList(); 9845 } 9846 9847 return admin.crossProfileWidgetProviders; 9848 } 9849 } 9850 9851 @Override 9852 public void addOnCrossProfileWidgetProvidersChangeListener( 9853 OnCrossProfileWidgetProvidersChangeListener listener) { 9854 synchronized (DevicePolicyManagerService.this) { 9855 if (mWidgetProviderListeners == null) { 9856 mWidgetProviderListeners = new ArrayList<>(); 9857 } 9858 if (!mWidgetProviderListeners.contains(listener)) { 9859 mWidgetProviderListeners.add(listener); 9860 } 9861 } 9862 } 9863 9864 @Override 9865 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 9866 synchronized(DevicePolicyManagerService.this) { 9867 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 9868 } 9869 } 9870 9871 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 9872 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 9873 synchronized (DevicePolicyManagerService.this) { 9874 listeners = new ArrayList<>(mWidgetProviderListeners); 9875 } 9876 final int listenerCount = listeners.size(); 9877 for (int i = 0; i < listenerCount; i++) { 9878 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 9879 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 9880 } 9881 } 9882 9883 @Override 9884 public Intent createShowAdminSupportIntent(int userId, boolean useDefaultIfNoAdmin) { 9885 // This method is called from AM with its lock held, so don't take the DPMS lock. 9886 // b/29242568 9887 9888 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 9889 if (profileOwner != null) { 9890 return DevicePolicyManagerService.this 9891 .createShowAdminSupportIntent(profileOwner, userId); 9892 } 9893 9894 final Pair<Integer, ComponentName> deviceOwner = 9895 mOwners.getDeviceOwnerUserIdAndComponent(); 9896 if (deviceOwner != null && deviceOwner.first == userId) { 9897 return DevicePolicyManagerService.this 9898 .createShowAdminSupportIntent(deviceOwner.second, userId); 9899 } 9900 9901 // We're not specifying the device admin because there isn't one. 9902 if (useDefaultIfNoAdmin) { 9903 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 9904 } 9905 return null; 9906 } 9907 9908 @Override 9909 public Intent createUserRestrictionSupportIntent(int userId, String userRestriction) { 9910 int source; 9911 long ident = mInjector.binderClearCallingIdentity(); 9912 try { 9913 source = mUserManager.getUserRestrictionSource(userRestriction, 9914 UserHandle.of(userId)); 9915 } finally { 9916 mInjector.binderRestoreCallingIdentity(ident); 9917 } 9918 if ((source & UserManager.RESTRICTION_SOURCE_SYSTEM) != 0) { 9919 /* 9920 * In this case, the user restriction is enforced by the system. 9921 * So we won't show an admin support intent, even if it is also 9922 * enforced by a profile/device owner. 9923 */ 9924 return null; 9925 } 9926 boolean enforcedByDo = (source & UserManager.RESTRICTION_SOURCE_DEVICE_OWNER) != 0; 9927 boolean enforcedByPo = (source & UserManager.RESTRICTION_SOURCE_PROFILE_OWNER) != 0; 9928 if (enforcedByDo && enforcedByPo) { 9929 // In this case, we'll show an admin support dialog that does not 9930 // specify the admin. 9931 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 9932 } else if (enforcedByPo) { 9933 final ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 9934 if (profileOwner != null) { 9935 return DevicePolicyManagerService.this 9936 .createShowAdminSupportIntent(profileOwner, userId); 9937 } 9938 // This could happen if another thread has changed the profile owner since we called 9939 // getUserRestrictionSource 9940 return null; 9941 } else if (enforcedByDo) { 9942 final Pair<Integer, ComponentName> deviceOwner 9943 = mOwners.getDeviceOwnerUserIdAndComponent(); 9944 if (deviceOwner != null) { 9945 return DevicePolicyManagerService.this 9946 .createShowAdminSupportIntent(deviceOwner.second, deviceOwner.first); 9947 } 9948 // This could happen if another thread has changed the device owner since we called 9949 // getUserRestrictionSource 9950 return null; 9951 } 9952 return null; 9953 } 9954 9955 @Override 9956 public boolean isUserAffiliatedWithDevice(int userId) { 9957 return DevicePolicyManagerService.this.isUserAffiliatedWithDeviceLocked(userId); 9958 } 9959 9960 @Override 9961 public void reportSeparateProfileChallengeChanged(@UserIdInt int userId) { 9962 synchronized (DevicePolicyManagerService.this) { 9963 updateMaximumTimeToLockLocked(userId); 9964 } 9965 } 9966 } 9967 9968 private Intent createShowAdminSupportIntent(ComponentName admin, int userId) { 9969 // This method is called with AMS lock held, so don't take DPMS lock 9970 final Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS); 9971 intent.putExtra(Intent.EXTRA_USER_ID, userId); 9972 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, admin); 9973 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 9974 return intent; 9975 } 9976 9977 @Override 9978 public Intent createAdminSupportIntent(String restriction) { 9979 Preconditions.checkNotNull(restriction); 9980 final int uid = mInjector.binderGetCallingUid(); 9981 final int userId = UserHandle.getUserId(uid); 9982 Intent intent = null; 9983 if (DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction) || 9984 DevicePolicyManager.POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction)) { 9985 synchronized(this) { 9986 final DevicePolicyData policy = getUserData(userId); 9987 final int N = policy.mAdminList.size(); 9988 for (int i = 0; i < N; i++) { 9989 final ActiveAdmin admin = policy.mAdminList.get(i); 9990 if ((admin.disableCamera && 9991 DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) || 9992 (admin.disableScreenCapture && DevicePolicyManager 9993 .POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction))) { 9994 intent = createShowAdminSupportIntent(admin.info.getComponent(), userId); 9995 break; 9996 } 9997 } 9998 // For the camera, a device owner on a different user can disable it globally, 9999 // so we need an additional check. 10000 if (intent == null 10001 && DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) { 10002 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 10003 if (admin != null && admin.disableCamera) { 10004 intent = createShowAdminSupportIntent(admin.info.getComponent(), 10005 mOwners.getDeviceOwnerUserId()); 10006 } 10007 } 10008 } 10009 } else { 10010 // if valid, |restriction| can only be a user restriction 10011 intent = mLocalService.createUserRestrictionSupportIntent(userId, restriction); 10012 } 10013 if (intent != null) { 10014 intent.putExtra(DevicePolicyManager.EXTRA_RESTRICTION, restriction); 10015 } 10016 return intent; 10017 } 10018 10019 /** 10020 * Returns true if specified admin is allowed to limit passwords and has a 10021 * {@code minimumPasswordMetrics.quality} of at least {@code minPasswordQuality} 10022 */ 10023 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 10024 if (admin.minimumPasswordMetrics.quality < minPasswordQuality) { 10025 return false; 10026 } 10027 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 10028 } 10029 10030 @Override 10031 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 10032 if (policy != null && !policy.isValid()) { 10033 throw new IllegalArgumentException("Invalid system update policy."); 10034 } 10035 synchronized (this) { 10036 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10037 if (policy == null) { 10038 mOwners.clearSystemUpdatePolicy(); 10039 } else { 10040 mOwners.setSystemUpdatePolicy(policy); 10041 } 10042 mOwners.writeDeviceOwner(); 10043 } 10044 mContext.sendBroadcastAsUser( 10045 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 10046 UserHandle.SYSTEM); 10047 } 10048 10049 @Override 10050 public SystemUpdatePolicy getSystemUpdatePolicy() { 10051 synchronized (this) { 10052 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 10053 if (policy != null && !policy.isValid()) { 10054 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 10055 return null; 10056 } 10057 return policy; 10058 } 10059 } 10060 10061 /** 10062 * Checks if the caller of the method is the device owner app. 10063 * 10064 * @param callerUid UID of the caller. 10065 * @return true if the caller is the device owner app 10066 */ 10067 @VisibleForTesting 10068 boolean isCallerDeviceOwner(int callerUid) { 10069 synchronized (this) { 10070 if (!mOwners.hasDeviceOwner()) { 10071 return false; 10072 } 10073 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 10074 return false; 10075 } 10076 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 10077 .getPackageName(); 10078 try { 10079 String[] pkgs = mInjector.getIPackageManager().getPackagesForUid(callerUid); 10080 for (String pkg : pkgs) { 10081 if (deviceOwnerPackageName.equals(pkg)) { 10082 return true; 10083 } 10084 } 10085 } catch (RemoteException e) { 10086 return false; 10087 } 10088 } 10089 10090 return false; 10091 } 10092 10093 @Override 10094 public void notifyPendingSystemUpdate(@Nullable SystemUpdateInfo info) { 10095 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 10096 "Only the system update service can broadcast update information"); 10097 10098 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 10099 Slog.w(LOG_TAG, "Only the system update service in the system user " + 10100 "can broadcast update information."); 10101 return; 10102 } 10103 10104 if (!mOwners.saveSystemUpdateInfo(info)) { 10105 // Pending system update hasn't changed, don't send duplicate notification. 10106 return; 10107 } 10108 10109 final Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE) 10110 .putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 10111 info == null ? -1 : info.getReceivedTime()); 10112 10113 final long ident = mInjector.binderClearCallingIdentity(); 10114 try { 10115 synchronized (this) { 10116 // Broadcast to device owner first if there is one. 10117 if (mOwners.hasDeviceOwner()) { 10118 final UserHandle deviceOwnerUser = 10119 UserHandle.of(mOwners.getDeviceOwnerUserId()); 10120 intent.setComponent(mOwners.getDeviceOwnerComponent()); 10121 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 10122 } 10123 } 10124 // Get running users. 10125 final int runningUserIds[]; 10126 try { 10127 runningUserIds = mInjector.getIActivityManager().getRunningUserIds(); 10128 } catch (RemoteException e) { 10129 // Shouldn't happen. 10130 Log.e(LOG_TAG, "Could not retrieve the list of running users", e); 10131 return; 10132 } 10133 // Send broadcasts to corresponding profile owners if any. 10134 for (final int userId : runningUserIds) { 10135 synchronized (this) { 10136 final ComponentName profileOwnerPackage = 10137 mOwners.getProfileOwnerComponent(userId); 10138 if (profileOwnerPackage != null) { 10139 intent.setComponent(profileOwnerPackage); 10140 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 10141 } 10142 } 10143 } 10144 } finally { 10145 mInjector.binderRestoreCallingIdentity(ident); 10146 } 10147 } 10148 10149 @Override 10150 public SystemUpdateInfo getPendingSystemUpdate(ComponentName admin) { 10151 Preconditions.checkNotNull(admin, "ComponentName is null"); 10152 enforceProfileOrDeviceOwner(admin); 10153 10154 return mOwners.getSystemUpdateInfo(); 10155 } 10156 10157 @Override 10158 public void setPermissionPolicy(ComponentName admin, String callerPackage, int policy) 10159 throws RemoteException { 10160 int userId = UserHandle.getCallingUserId(); 10161 synchronized (this) { 10162 // Ensure the caller is a DO/PO or a permission grant state delegate. 10163 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 10164 DELEGATION_PERMISSION_GRANT); 10165 DevicePolicyData userPolicy = getUserData(userId); 10166 if (userPolicy.mPermissionPolicy != policy) { 10167 userPolicy.mPermissionPolicy = policy; 10168 saveSettingsLocked(userId); 10169 } 10170 } 10171 } 10172 10173 @Override 10174 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 10175 int userId = UserHandle.getCallingUserId(); 10176 synchronized (this) { 10177 DevicePolicyData userPolicy = getUserData(userId); 10178 return userPolicy.mPermissionPolicy; 10179 } 10180 } 10181 10182 @Override 10183 public boolean setPermissionGrantState(ComponentName admin, String callerPackage, 10184 String packageName, String permission, int grantState) throws RemoteException { 10185 UserHandle user = mInjector.binderGetCallingUserHandle(); 10186 synchronized (this) { 10187 // Ensure the caller is a DO/PO or a permission grant state delegate. 10188 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 10189 DELEGATION_PERMISSION_GRANT); 10190 long ident = mInjector.binderClearCallingIdentity(); 10191 try { 10192 if (getTargetSdk(packageName, user.getIdentifier()) 10193 < android.os.Build.VERSION_CODES.M) { 10194 return false; 10195 } 10196 if (!isRuntimePermission(permission)) { 10197 return false; 10198 } 10199 final PackageManager packageManager = mInjector.getPackageManager(); 10200 switch (grantState) { 10201 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 10202 mInjector.getPackageManagerInternal().grantRuntimePermission(packageName, 10203 permission, user.getIdentifier(), true /* override policy */); 10204 packageManager.updatePermissionFlags(permission, packageName, 10205 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 10206 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 10207 } break; 10208 10209 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 10210 mInjector.getPackageManagerInternal().revokeRuntimePermission(packageName, 10211 permission, user.getIdentifier(), true /* override policy */); 10212 packageManager.updatePermissionFlags(permission, packageName, 10213 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 10214 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 10215 } break; 10216 10217 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 10218 packageManager.updatePermissionFlags(permission, packageName, 10219 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 10220 } break; 10221 } 10222 return true; 10223 } catch (SecurityException se) { 10224 return false; 10225 } catch (NameNotFoundException e) { 10226 return false; 10227 } finally { 10228 mInjector.binderRestoreCallingIdentity(ident); 10229 } 10230 } 10231 } 10232 10233 @Override 10234 public int getPermissionGrantState(ComponentName admin, String callerPackage, 10235 String packageName, String permission) throws RemoteException { 10236 PackageManager packageManager = mInjector.getPackageManager(); 10237 10238 UserHandle user = mInjector.binderGetCallingUserHandle(); 10239 if (!isCallerWithSystemUid()) { 10240 // Ensure the caller is a DO/PO or a permission grant state delegate. 10241 enforceCanManageScope(admin, callerPackage, 10242 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, DELEGATION_PERMISSION_GRANT); 10243 } 10244 synchronized (this) { 10245 long ident = mInjector.binderClearCallingIdentity(); 10246 try { 10247 int granted = mIPackageManager.checkPermission(permission, 10248 packageName, user.getIdentifier()); 10249 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 10250 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 10251 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 10252 // Not controlled by policy 10253 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 10254 } else { 10255 // Policy controlled so return result based on permission grant state 10256 return granted == PackageManager.PERMISSION_GRANTED 10257 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 10258 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 10259 } 10260 } finally { 10261 mInjector.binderRestoreCallingIdentity(ident); 10262 } 10263 } 10264 } 10265 10266 boolean isPackageInstalledForUser(String packageName, int userHandle) { 10267 try { 10268 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 10269 userHandle); 10270 return (pi != null) && (pi.applicationInfo.flags != 0); 10271 } catch (RemoteException re) { 10272 throw new RuntimeException("Package manager has died", re); 10273 } 10274 } 10275 10276 public boolean isRuntimePermission(String permissionName) throws NameNotFoundException { 10277 final PackageManager packageManager = mInjector.getPackageManager(); 10278 PermissionInfo permissionInfo = packageManager.getPermissionInfo(permissionName, 0); 10279 return (permissionInfo.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE) 10280 == PermissionInfo.PROTECTION_DANGEROUS; 10281 } 10282 10283 @Override 10284 public boolean isProvisioningAllowed(String action, String packageName) { 10285 Preconditions.checkNotNull(packageName); 10286 10287 final int callingUid = mInjector.binderGetCallingUid(); 10288 final long ident = mInjector.binderClearCallingIdentity(); 10289 try { 10290 final int uidForPackage = mInjector.getPackageManager().getPackageUidAsUser( 10291 packageName, UserHandle.getUserId(callingUid)); 10292 Preconditions.checkArgument(callingUid == uidForPackage, 10293 "Caller uid doesn't match the one for the provided package."); 10294 } catch (NameNotFoundException e) { 10295 throw new IllegalArgumentException("Invalid package provided " + packageName, e); 10296 } finally { 10297 mInjector.binderRestoreCallingIdentity(ident); 10298 } 10299 10300 return checkProvisioningPreConditionSkipPermission(action, packageName) == CODE_OK; 10301 } 10302 10303 @Override 10304 public int checkProvisioningPreCondition(String action, String packageName) { 10305 Preconditions.checkNotNull(packageName); 10306 enforceCanManageProfileAndDeviceOwners(); 10307 return checkProvisioningPreConditionSkipPermission(action, packageName); 10308 } 10309 10310 private int checkProvisioningPreConditionSkipPermission(String action, String packageName) { 10311 if (!mHasFeature) { 10312 return CODE_DEVICE_ADMIN_NOT_SUPPORTED; 10313 } 10314 10315 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10316 if (action != null) { 10317 switch (action) { 10318 case DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE: 10319 return checkManagedProfileProvisioningPreCondition(packageName, callingUserId); 10320 case DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE: 10321 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 10322 case DevicePolicyManager.ACTION_PROVISION_MANAGED_USER: 10323 return checkManagedUserProvisioningPreCondition(callingUserId); 10324 case DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE: 10325 return checkManagedShareableDeviceProvisioningPreCondition(callingUserId); 10326 } 10327 } 10328 throw new IllegalArgumentException("Unknown provisioning action " + action); 10329 } 10330 10331 /** 10332 * The device owner can only be set before the setup phase of the primary user has completed, 10333 * except for adb command if no accounts or additional users are present on the device. 10334 */ 10335 private int checkDeviceOwnerProvisioningPreConditionLocked(@Nullable ComponentName owner, 10336 int deviceOwnerUserId, boolean isAdb, boolean hasIncompatibleAccountsOrNonAdb) { 10337 if (mOwners.hasDeviceOwner()) { 10338 return CODE_HAS_DEVICE_OWNER; 10339 } 10340 if (mOwners.hasProfileOwner(deviceOwnerUserId)) { 10341 return CODE_USER_HAS_PROFILE_OWNER; 10342 } 10343 if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) { 10344 return CODE_USER_NOT_RUNNING; 10345 } 10346 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 10347 return CODE_HAS_PAIRED; 10348 } 10349 if (isAdb) { 10350 // if shell command runs after user setup completed check device status. Otherwise, OK. 10351 if (mIsWatch || hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 10352 if (!mInjector.userManagerIsSplitSystemUser()) { 10353 if (mUserManager.getUserCount() > 1) { 10354 return CODE_NONSYSTEM_USER_EXISTS; 10355 } 10356 if (hasIncompatibleAccountsOrNonAdb) { 10357 return CODE_ACCOUNTS_NOT_EMPTY; 10358 } 10359 } else { 10360 // STOPSHIP Do proper check in split user mode 10361 } 10362 } 10363 return CODE_OK; 10364 } else { 10365 if (!mInjector.userManagerIsSplitSystemUser()) { 10366 // In non-split user mode, DO has to be user 0 10367 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) { 10368 return CODE_NOT_SYSTEM_USER; 10369 } 10370 // In non-split user mode, only provision DO before setup wizard completes 10371 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 10372 return CODE_USER_SETUP_COMPLETED; 10373 } 10374 } else { 10375 // STOPSHIP Do proper check in split user mode 10376 } 10377 return CODE_OK; 10378 } 10379 } 10380 10381 private int checkDeviceOwnerProvisioningPreCondition(int deviceOwnerUserId) { 10382 synchronized (this) { 10383 // hasIncompatibleAccountsOrNonAdb doesn't matter since the caller is not adb. 10384 return checkDeviceOwnerProvisioningPreConditionLocked(/* owner unknown */ null, 10385 deviceOwnerUserId, /* isAdb= */ false, 10386 /* hasIncompatibleAccountsOrNonAdb=*/ true); 10387 } 10388 } 10389 10390 private int checkManagedProfileProvisioningPreCondition(String packageName, int callingUserId) { 10391 if (!hasFeatureManagedUsers()) { 10392 return CODE_MANAGED_USERS_NOT_SUPPORTED; 10393 } 10394 if (callingUserId == UserHandle.USER_SYSTEM 10395 && mInjector.userManagerIsSplitSystemUser()) { 10396 // Managed-profiles cannot be setup on the system user. 10397 return CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 10398 } 10399 if (getProfileOwner(callingUserId) != null) { 10400 // Managed user cannot have a managed profile. 10401 return CODE_USER_HAS_PROFILE_OWNER; 10402 } 10403 10404 final long ident = mInjector.binderClearCallingIdentity(); 10405 try { 10406 final UserHandle callingUserHandle = UserHandle.of(callingUserId); 10407 final ComponentName ownerAdmin = getOwnerComponent(packageName, callingUserId); 10408 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_MANAGED_PROFILE, 10409 callingUserHandle)) { 10410 // An admin can initiate provisioning if it has set the restriction. 10411 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 10412 UserManager.DISALLOW_ADD_MANAGED_PROFILE, callingUserId)) { 10413 return CODE_ADD_MANAGED_PROFILE_DISALLOWED; 10414 } 10415 } 10416 boolean canRemoveProfile = true; 10417 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 10418 callingUserHandle)) { 10419 // We can remove a profile if the admin itself has set the restriction. 10420 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 10421 UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 10422 callingUserId)) { 10423 canRemoveProfile = false; 10424 } 10425 } 10426 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, canRemoveProfile)) { 10427 return CODE_CANNOT_ADD_MANAGED_PROFILE; 10428 } 10429 } finally { 10430 mInjector.binderRestoreCallingIdentity(ident); 10431 } 10432 return CODE_OK; 10433 } 10434 10435 private ComponentName getOwnerComponent(String packageName, int userId) { 10436 if (isDeviceOwnerPackage(packageName, userId)) { 10437 return mOwners.getDeviceOwnerComponent(); 10438 } 10439 if (isProfileOwnerPackage(packageName, userId)) { 10440 return mOwners.getProfileOwnerComponent(userId); 10441 } 10442 return null; 10443 } 10444 10445 /** 10446 * Return device owner or profile owner set on a given user. 10447 */ 10448 private @Nullable ComponentName getOwnerComponent(int userId) { 10449 synchronized (this) { 10450 if (mOwners.getDeviceOwnerUserId() == userId) { 10451 return mOwners.getDeviceOwnerComponent(); 10452 } 10453 if (mOwners.hasProfileOwner(userId)) { 10454 return mOwners.getProfileOwnerComponent(userId); 10455 } 10456 } 10457 return null; 10458 } 10459 10460 private int checkManagedUserProvisioningPreCondition(int callingUserId) { 10461 if (!hasFeatureManagedUsers()) { 10462 return CODE_MANAGED_USERS_NOT_SUPPORTED; 10463 } 10464 if (!mInjector.userManagerIsSplitSystemUser()) { 10465 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 10466 return CODE_NOT_SYSTEM_USER_SPLIT; 10467 } 10468 if (callingUserId == UserHandle.USER_SYSTEM) { 10469 // System user cannot be a managed user. 10470 return CODE_SYSTEM_USER; 10471 } 10472 if (hasUserSetupCompleted(callingUserId)) { 10473 return CODE_USER_SETUP_COMPLETED; 10474 } 10475 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 10476 return CODE_HAS_PAIRED; 10477 } 10478 return CODE_OK; 10479 } 10480 10481 private int checkManagedShareableDeviceProvisioningPreCondition(int callingUserId) { 10482 if (!mInjector.userManagerIsSplitSystemUser()) { 10483 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 10484 return CODE_NOT_SYSTEM_USER_SPLIT; 10485 } 10486 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 10487 } 10488 10489 private boolean hasFeatureManagedUsers() { 10490 try { 10491 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 10492 } catch (RemoteException e) { 10493 return false; 10494 } 10495 } 10496 10497 @Override 10498 public String getWifiMacAddress(ComponentName admin) { 10499 // Make sure caller has DO. 10500 synchronized (this) { 10501 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10502 } 10503 10504 final long ident = mInjector.binderClearCallingIdentity(); 10505 try { 10506 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 10507 if (wifiInfo == null) { 10508 return null; 10509 } 10510 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 10511 } finally { 10512 mInjector.binderRestoreCallingIdentity(ident); 10513 } 10514 } 10515 10516 /** 10517 * Returns the target sdk version number that the given packageName was built for 10518 * in the given user. 10519 */ 10520 private int getTargetSdk(String packageName, int userId) { 10521 final ApplicationInfo ai; 10522 try { 10523 ai = mIPackageManager.getApplicationInfo(packageName, 0, userId); 10524 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 10525 return targetSdkVersion; 10526 } catch (RemoteException e) { 10527 // Shouldn't happen 10528 return 0; 10529 } 10530 } 10531 10532 @Override 10533 public boolean isManagedProfile(ComponentName admin) { 10534 enforceProfileOrDeviceOwner(admin); 10535 return isManagedProfile(mInjector.userHandleGetCallingUserId()); 10536 } 10537 10538 @Override 10539 public boolean isSystemOnlyUser(ComponentName admin) { 10540 synchronized (this) { 10541 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10542 } 10543 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10544 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 10545 } 10546 10547 @Override 10548 public void reboot(ComponentName admin) { 10549 Preconditions.checkNotNull(admin); 10550 // Make sure caller has DO. 10551 synchronized (this) { 10552 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10553 } 10554 long ident = mInjector.binderClearCallingIdentity(); 10555 try { 10556 // Make sure there are no ongoing calls on the device. 10557 if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { 10558 throw new IllegalStateException("Cannot be called with ongoing call on the device"); 10559 } 10560 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 10561 } finally { 10562 mInjector.binderRestoreCallingIdentity(ident); 10563 } 10564 } 10565 10566 @Override 10567 public void setShortSupportMessage(@NonNull ComponentName who, CharSequence message) { 10568 if (!mHasFeature) { 10569 return; 10570 } 10571 Preconditions.checkNotNull(who, "ComponentName is null"); 10572 final int userHandle = mInjector.userHandleGetCallingUserId(); 10573 synchronized (this) { 10574 ActiveAdmin admin = getActiveAdminForUidLocked(who, 10575 mInjector.binderGetCallingUid()); 10576 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 10577 admin.shortSupportMessage = message; 10578 saveSettingsLocked(userHandle); 10579 } 10580 } 10581 } 10582 10583 @Override 10584 public CharSequence getShortSupportMessage(@NonNull ComponentName who) { 10585 if (!mHasFeature) { 10586 return null; 10587 } 10588 Preconditions.checkNotNull(who, "ComponentName is null"); 10589 synchronized (this) { 10590 ActiveAdmin admin = getActiveAdminForUidLocked(who, 10591 mInjector.binderGetCallingUid()); 10592 return admin.shortSupportMessage; 10593 } 10594 } 10595 10596 @Override 10597 public void setLongSupportMessage(@NonNull ComponentName who, CharSequence message) { 10598 if (!mHasFeature) { 10599 return; 10600 } 10601 Preconditions.checkNotNull(who, "ComponentName is null"); 10602 final int userHandle = mInjector.userHandleGetCallingUserId(); 10603 synchronized (this) { 10604 ActiveAdmin admin = getActiveAdminForUidLocked(who, 10605 mInjector.binderGetCallingUid()); 10606 if (!TextUtils.equals(admin.longSupportMessage, message)) { 10607 admin.longSupportMessage = message; 10608 saveSettingsLocked(userHandle); 10609 } 10610 } 10611 } 10612 10613 @Override 10614 public CharSequence getLongSupportMessage(@NonNull ComponentName who) { 10615 if (!mHasFeature) { 10616 return null; 10617 } 10618 Preconditions.checkNotNull(who, "ComponentName is null"); 10619 synchronized (this) { 10620 ActiveAdmin admin = getActiveAdminForUidLocked(who, 10621 mInjector.binderGetCallingUid()); 10622 return admin.longSupportMessage; 10623 } 10624 } 10625 10626 @Override 10627 public CharSequence getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 10628 if (!mHasFeature) { 10629 return null; 10630 } 10631 Preconditions.checkNotNull(who, "ComponentName is null"); 10632 if (!isCallerWithSystemUid()) { 10633 throw new SecurityException("Only the system can query support message for user"); 10634 } 10635 synchronized (this) { 10636 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 10637 if (admin != null) { 10638 return admin.shortSupportMessage; 10639 } 10640 } 10641 return null; 10642 } 10643 10644 @Override 10645 public CharSequence getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 10646 if (!mHasFeature) { 10647 return null; 10648 } 10649 Preconditions.checkNotNull(who, "ComponentName is null"); 10650 if (!isCallerWithSystemUid()) { 10651 throw new SecurityException("Only the system can query support message for user"); 10652 } 10653 synchronized (this) { 10654 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 10655 if (admin != null) { 10656 return admin.longSupportMessage; 10657 } 10658 } 10659 return null; 10660 } 10661 10662 @Override 10663 public void setOrganizationColor(@NonNull ComponentName who, int color) { 10664 if (!mHasFeature) { 10665 return; 10666 } 10667 Preconditions.checkNotNull(who, "ComponentName is null"); 10668 final int userHandle = mInjector.userHandleGetCallingUserId(); 10669 enforceManagedProfile(userHandle, "set organization color"); 10670 synchronized (this) { 10671 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 10672 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10673 admin.organizationColor = color; 10674 saveSettingsLocked(userHandle); 10675 } 10676 } 10677 10678 @Override 10679 public void setOrganizationColorForUser(int color, int userId) { 10680 if (!mHasFeature) { 10681 return; 10682 } 10683 enforceFullCrossUsersPermission(userId); 10684 enforceManageUsers(); 10685 enforceManagedProfile(userId, "set organization color"); 10686 synchronized (this) { 10687 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 10688 admin.organizationColor = color; 10689 saveSettingsLocked(userId); 10690 } 10691 } 10692 10693 @Override 10694 public int getOrganizationColor(@NonNull ComponentName who) { 10695 if (!mHasFeature) { 10696 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 10697 } 10698 Preconditions.checkNotNull(who, "ComponentName is null"); 10699 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 10700 synchronized (this) { 10701 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 10702 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10703 return admin.organizationColor; 10704 } 10705 } 10706 10707 @Override 10708 public int getOrganizationColorForUser(int userHandle) { 10709 if (!mHasFeature) { 10710 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 10711 } 10712 enforceFullCrossUsersPermission(userHandle); 10713 enforceManagedProfile(userHandle, "get organization color"); 10714 synchronized (this) { 10715 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 10716 return (profileOwner != null) 10717 ? profileOwner.organizationColor 10718 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 10719 } 10720 } 10721 10722 @Override 10723 public void setOrganizationName(@NonNull ComponentName who, CharSequence text) { 10724 if (!mHasFeature) { 10725 return; 10726 } 10727 Preconditions.checkNotNull(who, "ComponentName is null"); 10728 final int userHandle = mInjector.userHandleGetCallingUserId(); 10729 10730 synchronized (this) { 10731 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 10732 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10733 if (!TextUtils.equals(admin.organizationName, text)) { 10734 admin.organizationName = (text == null || text.length() == 0) 10735 ? null : text.toString(); 10736 saveSettingsLocked(userHandle); 10737 } 10738 } 10739 } 10740 10741 @Override 10742 public CharSequence getOrganizationName(@NonNull ComponentName who) { 10743 if (!mHasFeature) { 10744 return null; 10745 } 10746 Preconditions.checkNotNull(who, "ComponentName is null"); 10747 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 10748 synchronized(this) { 10749 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 10750 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10751 return admin.organizationName; 10752 } 10753 } 10754 10755 @Override 10756 public CharSequence getDeviceOwnerOrganizationName() { 10757 if (!mHasFeature) { 10758 return null; 10759 } 10760 enforceDeviceOwnerOrManageUsers(); 10761 synchronized(this) { 10762 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 10763 return deviceOwnerAdmin == null ? null : deviceOwnerAdmin.organizationName; 10764 } 10765 } 10766 10767 @Override 10768 public CharSequence getOrganizationNameForUser(int userHandle) { 10769 if (!mHasFeature) { 10770 return null; 10771 } 10772 enforceFullCrossUsersPermission(userHandle); 10773 enforceManagedProfile(userHandle, "get organization name"); 10774 synchronized (this) { 10775 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 10776 return (profileOwner != null) 10777 ? profileOwner.organizationName 10778 : null; 10779 } 10780 } 10781 10782 @Override 10783 public void setAffiliationIds(ComponentName admin, List<String> ids) { 10784 if (!mHasFeature) { 10785 return; 10786 } 10787 if (ids == null) { 10788 throw new IllegalArgumentException("ids must not be null"); 10789 } 10790 for (String id : ids) { 10791 if (TextUtils.isEmpty(id)) { 10792 throw new IllegalArgumentException("ids must not contain empty string"); 10793 } 10794 } 10795 10796 final Set<String> affiliationIds = new ArraySet<>(ids); 10797 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10798 synchronized (this) { 10799 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10800 getUserData(callingUserId).mAffiliationIds = affiliationIds; 10801 saveSettingsLocked(callingUserId); 10802 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 10803 // Affiliation ids specified by the device owner are additionally stored in 10804 // UserHandle.USER_SYSTEM's DevicePolicyData. 10805 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 10806 saveSettingsLocked(UserHandle.USER_SYSTEM); 10807 } 10808 10809 // Affiliation status for any user, not just the calling user, might have changed. 10810 // The device owner user will still be affiliated after changing its affiliation ids, 10811 // but as a result of that other users might become affiliated or un-affiliated. 10812 maybePauseDeviceWideLoggingLocked(); 10813 maybeResumeDeviceWideLoggingLocked(); 10814 maybeClearLockTaskPolicyLocked(); 10815 } 10816 } 10817 10818 @Override 10819 public List<String> getAffiliationIds(ComponentName admin) { 10820 if (!mHasFeature) { 10821 return Collections.emptyList(); 10822 } 10823 10824 Preconditions.checkNotNull(admin); 10825 synchronized (this) { 10826 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10827 return new ArrayList<String>( 10828 getUserData(mInjector.userHandleGetCallingUserId()).mAffiliationIds); 10829 } 10830 } 10831 10832 @Override 10833 public boolean isAffiliatedUser() { 10834 if (!mHasFeature) { 10835 return false; 10836 } 10837 10838 synchronized (this) { 10839 return isUserAffiliatedWithDeviceLocked(mInjector.userHandleGetCallingUserId()); 10840 } 10841 } 10842 10843 private boolean isUserAffiliatedWithDeviceLocked(int userId) { 10844 if (!mOwners.hasDeviceOwner()) { 10845 return false; 10846 } 10847 if (userId == mOwners.getDeviceOwnerUserId()) { 10848 // The user that the DO is installed on is always affiliated with the device. 10849 return true; 10850 } 10851 if (userId == UserHandle.USER_SYSTEM) { 10852 // The system user is always affiliated in a DO device, even if the DO is set on a 10853 // different user. This could be the case if the DO is set in the primary user 10854 // of a split user device. 10855 return true; 10856 } 10857 final ComponentName profileOwner = getProfileOwner(userId); 10858 if (profileOwner == null) { 10859 return false; 10860 } 10861 final Set<String> userAffiliationIds = getUserData(userId).mAffiliationIds; 10862 final Set<String> deviceAffiliationIds = 10863 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 10864 for (String id : userAffiliationIds) { 10865 if (deviceAffiliationIds.contains(id)) { 10866 return true; 10867 } 10868 } 10869 return false; 10870 } 10871 10872 private boolean areAllUsersAffiliatedWithDeviceLocked() { 10873 final long ident = mInjector.binderClearCallingIdentity(); 10874 try { 10875 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 10876 for (int i = 0; i < userInfos.size(); i++) { 10877 int userId = userInfos.get(i).id; 10878 if (!isUserAffiliatedWithDeviceLocked(userId)) { 10879 Slog.d(LOG_TAG, "User id " + userId + " not affiliated."); 10880 return false; 10881 } 10882 } 10883 } finally { 10884 mInjector.binderRestoreCallingIdentity(ident); 10885 } 10886 10887 return true; 10888 } 10889 10890 @Override 10891 public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) { 10892 if (!mHasFeature) { 10893 return; 10894 } 10895 Preconditions.checkNotNull(admin); 10896 10897 synchronized (this) { 10898 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10899 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 10900 return; 10901 } 10902 mInjector.securityLogSetLoggingEnabledProperty(enabled); 10903 if (enabled) { 10904 mSecurityLogMonitor.start(); 10905 maybePauseDeviceWideLoggingLocked(); 10906 } else { 10907 mSecurityLogMonitor.stop(); 10908 } 10909 } 10910 } 10911 10912 @Override 10913 public boolean isSecurityLoggingEnabled(ComponentName admin) { 10914 if (!mHasFeature) { 10915 return false; 10916 } 10917 10918 synchronized (this) { 10919 if (!isCallerWithSystemUid()) { 10920 Preconditions.checkNotNull(admin); 10921 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10922 } 10923 return mInjector.securityLogGetLoggingEnabledProperty(); 10924 } 10925 } 10926 10927 private synchronized void recordSecurityLogRetrievalTime() { 10928 final long currentTime = System.currentTimeMillis(); 10929 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 10930 if (currentTime > policyData.mLastSecurityLogRetrievalTime) { 10931 policyData.mLastSecurityLogRetrievalTime = currentTime; 10932 saveSettingsLocked(UserHandle.USER_SYSTEM); 10933 } 10934 } 10935 10936 @Override 10937 public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) { 10938 if (!mHasFeature) { 10939 return null; 10940 } 10941 10942 Preconditions.checkNotNull(admin); 10943 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10944 10945 if (!mContext.getResources().getBoolean(R.bool.config_supportPreRebootSecurityLogs) 10946 || !mInjector.securityLogGetLoggingEnabledProperty()) { 10947 return null; 10948 } 10949 10950 recordSecurityLogRetrievalTime(); 10951 10952 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 10953 try { 10954 SecurityLog.readPreviousEvents(output); 10955 return new ParceledListSlice<SecurityEvent>(output); 10956 } catch (IOException e) { 10957 Slog.w(LOG_TAG, "Fail to read previous events" , e); 10958 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 10959 } 10960 } 10961 10962 @Override 10963 public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) { 10964 if (!mHasFeature) { 10965 return null; 10966 } 10967 10968 Preconditions.checkNotNull(admin); 10969 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10970 10971 if (!mInjector.securityLogGetLoggingEnabledProperty()) { 10972 return null; 10973 } 10974 10975 recordSecurityLogRetrievalTime(); 10976 10977 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 10978 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 10979 } 10980 10981 private void enforceCanManageDeviceAdmin() { 10982 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 10983 null); 10984 } 10985 10986 private void enforceCanManageProfileAndDeviceOwners() { 10987 mContext.enforceCallingOrSelfPermission( 10988 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 10989 } 10990 10991 private void enforceCallerSystemUserHandle() { 10992 final int callingUid = mInjector.binderGetCallingUid(); 10993 final int userId = UserHandle.getUserId(callingUid); 10994 if (userId != UserHandle.USER_SYSTEM) { 10995 throw new SecurityException("Caller has to be in user 0"); 10996 } 10997 } 10998 10999 @Override 11000 public boolean isUninstallInQueue(final String packageName) { 11001 enforceCanManageDeviceAdmin(); 11002 final int userId = mInjector.userHandleGetCallingUserId(); 11003 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 11004 synchronized (this) { 11005 return mPackagesToRemove.contains(packageUserPair); 11006 } 11007 } 11008 11009 @Override 11010 public void uninstallPackageWithActiveAdmins(final String packageName) { 11011 enforceCanManageDeviceAdmin(); 11012 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 11013 11014 final int userId = mInjector.userHandleGetCallingUserId(); 11015 11016 enforceUserUnlocked(userId); 11017 11018 final ComponentName profileOwner = getProfileOwner(userId); 11019 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 11020 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 11021 } 11022 11023 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 11024 if (getDeviceOwnerUserId() == userId && deviceOwner != null 11025 && packageName.equals(deviceOwner.getPackageName())) { 11026 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 11027 } 11028 11029 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 11030 synchronized (this) { 11031 mPackagesToRemove.add(packageUserPair); 11032 } 11033 11034 // All active admins on the user. 11035 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 11036 11037 // Active admins in the target package. 11038 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 11039 if (allActiveAdmins != null) { 11040 for (ComponentName activeAdmin : allActiveAdmins) { 11041 if (packageName.equals(activeAdmin.getPackageName())) { 11042 packageActiveAdmins.add(activeAdmin); 11043 removeActiveAdmin(activeAdmin, userId); 11044 } 11045 } 11046 } 11047 if (packageActiveAdmins.size() == 0) { 11048 startUninstallIntent(packageName, userId); 11049 } else { 11050 mHandler.postDelayed(new Runnable() { 11051 @Override 11052 public void run() { 11053 for (ComponentName activeAdmin : packageActiveAdmins) { 11054 removeAdminArtifacts(activeAdmin, userId); 11055 } 11056 startUninstallIntent(packageName, userId); 11057 } 11058 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 11059 } 11060 } 11061 11062 @Override 11063 public boolean isDeviceProvisioned() { 11064 synchronized (this) { 11065 return getUserDataUnchecked(UserHandle.USER_SYSTEM).mUserSetupComplete; 11066 } 11067 } 11068 11069 private boolean isCurrentUserDemo() { 11070 if (UserManager.isDeviceInDemoMode(mContext)) { 11071 final int userId = mInjector.userHandleGetCallingUserId(); 11072 final long callingIdentity = mInjector.binderClearCallingIdentity(); 11073 try { 11074 return mUserManager.getUserInfo(userId).isDemo(); 11075 } finally { 11076 mInjector.binderRestoreCallingIdentity(callingIdentity); 11077 } 11078 } 11079 return false; 11080 } 11081 11082 private void removePackageIfRequired(final String packageName, final int userId) { 11083 if (!packageHasActiveAdmins(packageName, userId)) { 11084 // Will not do anything if uninstall was not requested or was already started. 11085 startUninstallIntent(packageName, userId); 11086 } 11087 } 11088 11089 private void startUninstallIntent(final String packageName, final int userId) { 11090 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 11091 synchronized (this) { 11092 if (!mPackagesToRemove.contains(packageUserPair)) { 11093 // Do nothing if uninstall was not requested or was already started. 11094 return; 11095 } 11096 mPackagesToRemove.remove(packageUserPair); 11097 } 11098 try { 11099 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 11100 // Package does not exist. Nothing to do. 11101 return; 11102 } 11103 } catch (RemoteException re) { 11104 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 11105 } 11106 11107 try { // force stop the package before uninstalling 11108 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 11109 } catch (RemoteException re) { 11110 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 11111 } 11112 final Uri packageURI = Uri.parse("package:" + packageName); 11113 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 11114 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 11115 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 11116 } 11117 11118 /** 11119 * Removes the admin from the policy. Ideally called after the admin's 11120 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 11121 * 11122 * @param adminReceiver The admin to remove 11123 * @param userHandle The user for which this admin has to be removed. 11124 */ 11125 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 11126 synchronized (this) { 11127 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 11128 if (admin == null) { 11129 return; 11130 } 11131 final DevicePolicyData policy = getUserData(userHandle); 11132 final boolean doProxyCleanup = admin.info.usesPolicy( 11133 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 11134 policy.mAdminList.remove(admin); 11135 policy.mAdminMap.remove(adminReceiver); 11136 validatePasswordOwnerLocked(policy); 11137 if (doProxyCleanup) { 11138 resetGlobalProxyLocked(policy); 11139 } 11140 saveSettingsLocked(userHandle); 11141 updateMaximumTimeToLockLocked(userHandle); 11142 policy.mRemovingAdmins.remove(adminReceiver); 11143 11144 Slog.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle); 11145 } 11146 // The removed admin might have disabled camera, so update user 11147 // restrictions. 11148 pushUserRestrictions(userHandle); 11149 } 11150 11151 @Override 11152 public void setDeviceProvisioningConfigApplied() { 11153 enforceManageUsers(); 11154 synchronized (this) { 11155 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 11156 policy.mDeviceProvisioningConfigApplied = true; 11157 saveSettingsLocked(UserHandle.USER_SYSTEM); 11158 } 11159 } 11160 11161 @Override 11162 public boolean isDeviceProvisioningConfigApplied() { 11163 enforceManageUsers(); 11164 synchronized (this) { 11165 final DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 11166 return policy.mDeviceProvisioningConfigApplied; 11167 } 11168 } 11169 11170 /** 11171 * Force update internal persistent state from Settings.Secure.USER_SETUP_COMPLETE. 11172 * 11173 * It's added for testing only. Please use this API carefully if it's used by other system app 11174 * and bare in mind Settings.Secure.USER_SETUP_COMPLETE can be modified by user and other system 11175 * apps. 11176 */ 11177 @Override 11178 public void forceUpdateUserSetupComplete() { 11179 enforceCanManageProfileAndDeviceOwners(); 11180 enforceCallerSystemUserHandle(); 11181 // no effect if it's called from user build 11182 if (!mInjector.isBuildDebuggable()) { 11183 return; 11184 } 11185 final int userId = UserHandle.USER_SYSTEM; 11186 boolean isUserCompleted = mInjector.settingsSecureGetIntForUser( 11187 Settings.Secure.USER_SETUP_COMPLETE, 0, userId) != 0; 11188 DevicePolicyData policy = getUserData(userId); 11189 policy.mUserSetupComplete = isUserCompleted; 11190 synchronized (this) { 11191 saveSettingsLocked(userId); 11192 } 11193 } 11194 11195 // TODO(b/22388012): When backup is available for secondary users and profiles, consider 11196 // whether there are any privacy/security implications of enabling the backup service here 11197 // if there are other users or profiles unmanaged or managed by a different entity (i.e. not 11198 // affiliated). 11199 @Override 11200 public void setBackupServiceEnabled(ComponentName admin, boolean enabled) { 11201 if (!mHasFeature) { 11202 return; 11203 } 11204 Preconditions.checkNotNull(admin); 11205 synchronized (this) { 11206 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11207 } 11208 11209 final long ident = mInjector.binderClearCallingIdentity(); 11210 try { 11211 IBackupManager ibm = mInjector.getIBackupManager(); 11212 if (ibm != null) { 11213 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, enabled); 11214 } 11215 } catch (RemoteException e) { 11216 throw new IllegalStateException( 11217 "Failed " + (enabled ? "" : "de") + "activating backup service.", e); 11218 } finally { 11219 mInjector.binderRestoreCallingIdentity(ident); 11220 } 11221 } 11222 11223 @Override 11224 public boolean isBackupServiceEnabled(ComponentName admin) { 11225 Preconditions.checkNotNull(admin); 11226 if (!mHasFeature) { 11227 return true; 11228 } 11229 synchronized (this) { 11230 try { 11231 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11232 IBackupManager ibm = mInjector.getIBackupManager(); 11233 return ibm != null && ibm.isBackupServiceActive(UserHandle.USER_SYSTEM); 11234 } catch (RemoteException e) { 11235 throw new IllegalStateException("Failed requesting backup service state.", e); 11236 } 11237 } 11238 } 11239 11240 @Override 11241 public boolean bindDeviceAdminServiceAsUser( 11242 @NonNull ComponentName admin, @NonNull IApplicationThread caller, 11243 @Nullable IBinder activtiyToken, @NonNull Intent serviceIntent, 11244 @NonNull IServiceConnection connection, int flags, @UserIdInt int targetUserId) { 11245 if (!mHasFeature) { 11246 return false; 11247 } 11248 Preconditions.checkNotNull(admin); 11249 Preconditions.checkNotNull(caller); 11250 Preconditions.checkNotNull(serviceIntent); 11251 Preconditions.checkArgument( 11252 serviceIntent.getComponent() != null || serviceIntent.getPackage() != null, 11253 "Service intent must be explicit (with a package name or component): " 11254 + serviceIntent); 11255 Preconditions.checkNotNull(connection); 11256 Preconditions.checkArgument(mInjector.userHandleGetCallingUserId() != targetUserId, 11257 "target user id must be different from the calling user id"); 11258 11259 if (!getBindDeviceAdminTargetUsers(admin).contains(UserHandle.of(targetUserId))) { 11260 throw new SecurityException("Not allowed to bind to target user id"); 11261 } 11262 11263 final String targetPackage; 11264 synchronized (this) { 11265 targetPackage = getOwnerPackageNameForUserLocked(targetUserId); 11266 } 11267 11268 final long callingIdentity = mInjector.binderClearCallingIdentity(); 11269 try { 11270 // Validate and sanitize the incoming service intent. 11271 final Intent sanitizedIntent = 11272 createCrossUserServiceIntent(serviceIntent, targetPackage, targetUserId); 11273 if (sanitizedIntent == null) { 11274 // Fail, cannot lookup the target service. 11275 return false; 11276 } 11277 // Ask ActivityManager to bind it. Notice that we are binding the service with the 11278 // caller app instead of DevicePolicyManagerService. 11279 return mInjector.getIActivityManager().bindService( 11280 caller, activtiyToken, serviceIntent, 11281 serviceIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 11282 connection, flags, mContext.getOpPackageName(), 11283 targetUserId) != 0; 11284 } catch (RemoteException ex) { 11285 // Same process, should not happen. 11286 } finally { 11287 mInjector.binderRestoreCallingIdentity(callingIdentity); 11288 } 11289 11290 // Failed to bind. 11291 return false; 11292 } 11293 11294 @Override 11295 public @NonNull List<UserHandle> getBindDeviceAdminTargetUsers(@NonNull ComponentName admin) { 11296 if (!mHasFeature) { 11297 return Collections.emptyList(); 11298 } 11299 Preconditions.checkNotNull(admin); 11300 11301 synchronized (this) { 11302 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11303 11304 final int callingUserId = mInjector.userHandleGetCallingUserId(); 11305 final long callingIdentity = mInjector.binderClearCallingIdentity(); 11306 try { 11307 ArrayList<UserHandle> targetUsers = new ArrayList<>(); 11308 if (!isDeviceOwner(admin, callingUserId)) { 11309 // Profile owners can only bind to the device owner. 11310 if (canUserBindToDeviceOwnerLocked(callingUserId)) { 11311 targetUsers.add(UserHandle.of(mOwners.getDeviceOwnerUserId())); 11312 } 11313 } else { 11314 // Caller is the device owner: Look for profile owners that it can bind to. 11315 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 11316 for (int i = 0; i < userInfos.size(); i++) { 11317 final int userId = userInfos.get(i).id; 11318 if (userId != callingUserId && canUserBindToDeviceOwnerLocked(userId)) { 11319 targetUsers.add(UserHandle.of(userId)); 11320 } 11321 } 11322 } 11323 11324 return targetUsers; 11325 } finally { 11326 mInjector.binderRestoreCallingIdentity(callingIdentity); 11327 } 11328 } 11329 } 11330 11331 private boolean canUserBindToDeviceOwnerLocked(int userId) { 11332 // There has to be a device owner, under another user id. 11333 if (!mOwners.hasDeviceOwner() || userId == mOwners.getDeviceOwnerUserId()) { 11334 return false; 11335 } 11336 11337 // The user must have a profile owner that belongs to the same package as the device owner. 11338 if (!mOwners.hasProfileOwner(userId) || !TextUtils.equals( 11339 mOwners.getDeviceOwnerPackageName(), mOwners.getProfileOwnerPackage(userId))) { 11340 return false; 11341 } 11342 11343 // The user must be affiliated. 11344 return isUserAffiliatedWithDeviceLocked(userId); 11345 } 11346 11347 /** 11348 * Return true if a given user has any accounts that'll prevent installing a device or profile 11349 * owner {@code owner}. 11350 * - If the user has no accounts, then return false. 11351 * - Otherwise, if the owner is unknown (== null), or is not test-only, then return true. 11352 * - Otherwise, if there's any account that does not have ..._ALLOWED, or does have 11353 * ..._DISALLOWED, return true. 11354 * - Otherwise return false. 11355 * 11356 * If the caller is *not* ADB, it also returns true. The returned value shouldn't be used 11357 * when the caller is not ADB. 11358 * 11359 * DO NOT CALL IT WITH THE DPMS LOCK HELD. 11360 */ 11361 private boolean hasIncompatibleAccountsOrNonAdbNoLock( 11362 int userId, @Nullable ComponentName owner) { 11363 if (!isAdb()) { 11364 return true; 11365 } 11366 wtfIfInLock(); 11367 11368 final long token = mInjector.binderClearCallingIdentity(); 11369 try { 11370 final AccountManager am = AccountManager.get(mContext); 11371 final Account accounts[] = am.getAccountsAsUser(userId); 11372 if (accounts.length == 0) { 11373 return false; 11374 } 11375 synchronized (this) { 11376 if (owner == null || !isAdminTestOnlyLocked(owner, userId)) { 11377 Log.w(LOG_TAG, 11378 "Non test-only owner can't be installed with existing accounts."); 11379 return true; 11380 } 11381 } 11382 11383 final String[] feature_allow = 11384 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_ALLOWED }; 11385 final String[] feature_disallow = 11386 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_DISALLOWED }; 11387 11388 boolean compatible = true; 11389 for (Account account : accounts) { 11390 if (hasAccountFeatures(am, account, feature_disallow)) { 11391 Log.e(LOG_TAG, account + " has " + feature_disallow[0]); 11392 compatible = false; 11393 break; 11394 } 11395 if (!hasAccountFeatures(am, account, feature_allow)) { 11396 Log.e(LOG_TAG, account + " doesn't have " + feature_allow[0]); 11397 compatible = false; 11398 break; 11399 } 11400 } 11401 if (compatible) { 11402 Log.w(LOG_TAG, "All accounts are compatible"); 11403 } else { 11404 Log.e(LOG_TAG, "Found incompatible accounts"); 11405 } 11406 return !compatible; 11407 } finally { 11408 mInjector.binderRestoreCallingIdentity(token); 11409 } 11410 } 11411 11412 private boolean hasAccountFeatures(AccountManager am, Account account, String[] features) { 11413 try { 11414 return am.hasFeatures(account, features, null, null).getResult(); 11415 } catch (Exception e) { 11416 Log.w(LOG_TAG, "Failed to get account feature", e); 11417 return false; 11418 } 11419 } 11420 11421 private boolean isAdb() { 11422 final int callingUid = mInjector.binderGetCallingUid(); 11423 return callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID; 11424 } 11425 11426 @Override 11427 public synchronized void setNetworkLoggingEnabled(ComponentName admin, boolean enabled) { 11428 if (!mHasFeature) { 11429 return; 11430 } 11431 Preconditions.checkNotNull(admin); 11432 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11433 11434 if (enabled == isNetworkLoggingEnabledInternalLocked()) { 11435 // already in the requested state 11436 return; 11437 } 11438 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 11439 deviceOwner.isNetworkLoggingEnabled = enabled; 11440 if (!enabled) { 11441 deviceOwner.numNetworkLoggingNotifications = 0; 11442 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 11443 } 11444 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 11445 11446 setNetworkLoggingActiveInternal(enabled); 11447 } 11448 11449 private synchronized void setNetworkLoggingActiveInternal(boolean active) { 11450 final long callingIdentity = mInjector.binderClearCallingIdentity(); 11451 try { 11452 if (active) { 11453 mNetworkLogger = new NetworkLogger(this, mInjector.getPackageManagerInternal()); 11454 if (!mNetworkLogger.startNetworkLogging()) { 11455 mNetworkLogger = null; 11456 Slog.wtf(LOG_TAG, "Network logging could not be started due to the logging" 11457 + " service not being available yet."); 11458 } 11459 maybePauseDeviceWideLoggingLocked(); 11460 sendNetworkLoggingNotificationLocked(); 11461 } else { 11462 if (mNetworkLogger != null && !mNetworkLogger.stopNetworkLogging()) { 11463 Slog.wtf(LOG_TAG, "Network logging could not be stopped due to the logging" 11464 + " service not being available yet."); 11465 } 11466 mNetworkLogger = null; 11467 mInjector.getNotificationManager().cancel(SystemMessage.NOTE_NETWORK_LOGGING); 11468 } 11469 } finally { 11470 mInjector.binderRestoreCallingIdentity(callingIdentity); 11471 } 11472 } 11473 11474 /** Pauses security and network logging if there are unaffiliated users on the device */ 11475 private void maybePauseDeviceWideLoggingLocked() { 11476 if (!areAllUsersAffiliatedWithDeviceLocked()) { 11477 Slog.i(LOG_TAG, "There are unaffiliated users, security and network logging will be " 11478 + "paused if enabled."); 11479 mSecurityLogMonitor.pause(); 11480 if (mNetworkLogger != null) { 11481 mNetworkLogger.pause(); 11482 } 11483 } 11484 } 11485 11486 /** Resumes security and network logging (if they are enabled) if all users are affiliated */ 11487 private void maybeResumeDeviceWideLoggingLocked() { 11488 if (areAllUsersAffiliatedWithDeviceLocked()) { 11489 final long ident = mInjector.binderClearCallingIdentity(); 11490 try { 11491 mSecurityLogMonitor.resume(); 11492 if (mNetworkLogger != null) { 11493 mNetworkLogger.resume(); 11494 } 11495 } finally { 11496 mInjector.binderRestoreCallingIdentity(ident); 11497 } 11498 } 11499 } 11500 11501 /** Deletes any security and network logs that might have been collected so far */ 11502 private void discardDeviceWideLogsLocked() { 11503 mSecurityLogMonitor.discardLogs(); 11504 if (mNetworkLogger != null) { 11505 mNetworkLogger.discardLogs(); 11506 } 11507 // TODO: We should discard pre-boot security logs here too, as otherwise those 11508 // logs (which might contain data from the user just removed) will be 11509 // available after next boot. 11510 } 11511 11512 @Override 11513 public boolean isNetworkLoggingEnabled(ComponentName admin) { 11514 if (!mHasFeature) { 11515 return false; 11516 } 11517 synchronized (this) { 11518 enforceDeviceOwnerOrManageUsers(); 11519 return isNetworkLoggingEnabledInternalLocked(); 11520 } 11521 } 11522 11523 private boolean isNetworkLoggingEnabledInternalLocked() { 11524 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 11525 return (deviceOwner != null) && deviceOwner.isNetworkLoggingEnabled; 11526 } 11527 11528 /* 11529 * A maximum of 1200 events are returned, and the total marshalled size is in the order of 11530 * 100kB, so returning a List instead of ParceledListSlice is acceptable. 11531 * Ideally this would be done with ParceledList, however it only supports homogeneous types. 11532 * 11533 * @see NetworkLoggingHandler#MAX_EVENTS_PER_BATCH 11534 */ 11535 @Override 11536 public List<NetworkEvent> retrieveNetworkLogs(ComponentName admin, long batchToken) { 11537 if (!mHasFeature) { 11538 return null; 11539 } 11540 Preconditions.checkNotNull(admin); 11541 ensureDeviceOwnerAndAllUsersAffiliated(admin); 11542 11543 synchronized (this) { 11544 if (mNetworkLogger == null 11545 || !isNetworkLoggingEnabledInternalLocked()) { 11546 return null; 11547 } 11548 11549 final long currentTime = System.currentTimeMillis(); 11550 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 11551 if (currentTime > policyData.mLastNetworkLogsRetrievalTime) { 11552 policyData.mLastNetworkLogsRetrievalTime = currentTime; 11553 saveSettingsLocked(UserHandle.USER_SYSTEM); 11554 } 11555 return mNetworkLogger.retrieveLogs(batchToken); 11556 } 11557 } 11558 11559 private void sendNetworkLoggingNotificationLocked() { 11560 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 11561 if (deviceOwner == null || !deviceOwner.isNetworkLoggingEnabled) { 11562 return; 11563 } 11564 if (deviceOwner.numNetworkLoggingNotifications >= 11565 ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 11566 return; 11567 } 11568 final long now = System.currentTimeMillis(); 11569 if (now - deviceOwner.lastNetworkLoggingNotificationTimeMs < MS_PER_DAY) { 11570 return; 11571 } 11572 deviceOwner.numNetworkLoggingNotifications++; 11573 if (deviceOwner.numNetworkLoggingNotifications 11574 >= ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 11575 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 11576 } else { 11577 deviceOwner.lastNetworkLoggingNotificationTimeMs = now; 11578 } 11579 final Intent intent = new Intent(DevicePolicyManager.ACTION_SHOW_DEVICE_MONITORING_DIALOG); 11580 intent.setPackage("com.android.systemui"); 11581 final PendingIntent pendingIntent = PendingIntent.getBroadcastAsUser(mContext, 0, intent, 0, 11582 UserHandle.CURRENT); 11583 Notification notification = 11584 new Notification.Builder(mContext, SystemNotificationChannels.DEVICE_ADMIN) 11585 .setSmallIcon(R.drawable.ic_info_outline) 11586 .setContentTitle(mContext.getString(R.string.network_logging_notification_title)) 11587 .setContentText(mContext.getString(R.string.network_logging_notification_text)) 11588 .setTicker(mContext.getString(R.string.network_logging_notification_title)) 11589 .setShowWhen(true) 11590 .setContentIntent(pendingIntent) 11591 .setStyle(new Notification.BigTextStyle() 11592 .bigText(mContext.getString(R.string.network_logging_notification_text))) 11593 .build(); 11594 mInjector.getNotificationManager().notify(SystemMessage.NOTE_NETWORK_LOGGING, notification); 11595 saveSettingsLocked(mOwners.getDeviceOwnerUserId()); 11596 } 11597 11598 /** 11599 * Return the package name of owner in a given user. 11600 */ 11601 private String getOwnerPackageNameForUserLocked(int userId) { 11602 return mOwners.getDeviceOwnerUserId() == userId 11603 ? mOwners.getDeviceOwnerPackageName() 11604 : mOwners.getProfileOwnerPackage(userId); 11605 } 11606 11607 /** 11608 * @param rawIntent Original service intent specified by caller. It must be explicit. 11609 * @param expectedPackageName The expected package name of the resolved service. 11610 * @return Intent that have component explicitly set. {@code null} if no service is resolved 11611 * with the given intent. 11612 * @throws SecurityException if the intent is resolved to an invalid service. 11613 */ 11614 private Intent createCrossUserServiceIntent( 11615 @NonNull Intent rawIntent, @NonNull String expectedPackageName, 11616 @UserIdInt int targetUserId) throws RemoteException, SecurityException { 11617 ResolveInfo info = mIPackageManager.resolveService( 11618 rawIntent, 11619 rawIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 11620 0, // flags 11621 targetUserId); 11622 if (info == null || info.serviceInfo == null) { 11623 Log.e(LOG_TAG, "Fail to look up the service: " + rawIntent 11624 + " or user " + targetUserId + " is not running"); 11625 return null; 11626 } 11627 if (!expectedPackageName.equals(info.serviceInfo.packageName)) { 11628 throw new SecurityException("Only allow to bind service in " + expectedPackageName); 11629 } 11630 // STOPSHIP(b/37624960): Remove info.serviceInfo.exported before release. 11631 if (info.serviceInfo.exported && !BIND_DEVICE_ADMIN.equals(info.serviceInfo.permission)) { 11632 throw new SecurityException( 11633 "Service must be protected by BIND_DEVICE_ADMIN permission"); 11634 } 11635 // It is the system server to bind the service, it would be extremely dangerous if it 11636 // can be exploited to bind any service. Set the component explicitly to make sure we 11637 // do not bind anything accidentally. 11638 rawIntent.setComponent(info.serviceInfo.getComponentName()); 11639 return rawIntent; 11640 } 11641 11642 @Override 11643 public long getLastSecurityLogRetrievalTime() { 11644 enforceDeviceOwnerOrManageUsers(); 11645 return getUserData(UserHandle.USER_SYSTEM).mLastSecurityLogRetrievalTime; 11646 } 11647 11648 @Override 11649 public long getLastBugReportRequestTime() { 11650 enforceDeviceOwnerOrManageUsers(); 11651 return getUserData(UserHandle.USER_SYSTEM).mLastBugReportRequestTime; 11652 } 11653 11654 @Override 11655 public long getLastNetworkLogRetrievalTime() { 11656 enforceDeviceOwnerOrManageUsers(); 11657 return getUserData(UserHandle.USER_SYSTEM).mLastNetworkLogsRetrievalTime; 11658 } 11659 11660 @Override 11661 public boolean setResetPasswordToken(ComponentName admin, byte[] token) { 11662 if (!mHasFeature) { 11663 return false; 11664 } 11665 if (token == null || token.length < 32) { 11666 throw new IllegalArgumentException("token must be at least 32-byte long"); 11667 } 11668 synchronized (this) { 11669 final int userHandle = mInjector.userHandleGetCallingUserId(); 11670 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11671 11672 DevicePolicyData policy = getUserData(userHandle); 11673 long ident = mInjector.binderClearCallingIdentity(); 11674 try { 11675 if (policy.mPasswordTokenHandle != 0) { 11676 mLockPatternUtils.removeEscrowToken(policy.mPasswordTokenHandle, userHandle); 11677 } 11678 11679 policy.mPasswordTokenHandle = mLockPatternUtils.addEscrowToken(token, userHandle); 11680 saveSettingsLocked(userHandle); 11681 return policy.mPasswordTokenHandle != 0; 11682 } finally { 11683 mInjector.binderRestoreCallingIdentity(ident); 11684 } 11685 } 11686 } 11687 11688 @Override 11689 public boolean clearResetPasswordToken(ComponentName admin) { 11690 if (!mHasFeature) { 11691 return false; 11692 } 11693 synchronized (this) { 11694 final int userHandle = mInjector.userHandleGetCallingUserId(); 11695 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11696 11697 DevicePolicyData policy = getUserData(userHandle); 11698 if (policy.mPasswordTokenHandle != 0) { 11699 long ident = mInjector.binderClearCallingIdentity(); 11700 try { 11701 boolean result = mLockPatternUtils.removeEscrowToken( 11702 policy.mPasswordTokenHandle, userHandle); 11703 policy.mPasswordTokenHandle = 0; 11704 saveSettingsLocked(userHandle); 11705 return result; 11706 } finally { 11707 mInjector.binderRestoreCallingIdentity(ident); 11708 } 11709 } 11710 } 11711 return false; 11712 } 11713 11714 @Override 11715 public boolean isResetPasswordTokenActive(ComponentName admin) { 11716 synchronized (this) { 11717 final int userHandle = mInjector.userHandleGetCallingUserId(); 11718 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11719 11720 DevicePolicyData policy = getUserData(userHandle); 11721 if (policy.mPasswordTokenHandle != 0) { 11722 long ident = mInjector.binderClearCallingIdentity(); 11723 try { 11724 return mLockPatternUtils.isEscrowTokenActive(policy.mPasswordTokenHandle, 11725 userHandle); 11726 } finally { 11727 mInjector.binderRestoreCallingIdentity(ident); 11728 } 11729 } 11730 } 11731 return false; 11732 } 11733 11734 @Override 11735 public boolean resetPasswordWithToken(ComponentName admin, String passwordOrNull, byte[] token, 11736 int flags) { 11737 Preconditions.checkNotNull(token); 11738 synchronized (this) { 11739 final int userHandle = mInjector.userHandleGetCallingUserId(); 11740 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11741 11742 DevicePolicyData policy = getUserData(userHandle); 11743 if (policy.mPasswordTokenHandle != 0) { 11744 final String password = passwordOrNull != null ? passwordOrNull : ""; 11745 return resetPasswordInternal(password, policy.mPasswordTokenHandle, token, 11746 flags, mInjector.binderGetCallingUid(), userHandle); 11747 } else { 11748 Slog.w(LOG_TAG, "No saved token handle"); 11749 } 11750 } 11751 return false; 11752 } 11753 11754 @Override 11755 public boolean isCurrentInputMethodSetByOwner() { 11756 enforceProfileOwnerOrSystemUser(); 11757 return getUserData(mInjector.userHandleGetCallingUserId()).mCurrentInputMethodSet; 11758 } 11759 11760 @Override 11761 public StringParceledListSlice getOwnerInstalledCaCerts(@NonNull UserHandle user) { 11762 final int userId = user.getIdentifier(); 11763 enforceProfileOwnerOrFullCrossUsersPermission(userId); 11764 synchronized (this) { 11765 return new StringParceledListSlice( 11766 new ArrayList<>(getUserData(userId).mOwnerInstalledCaCerts)); 11767 } 11768 } 11769 11770 @Override 11771 public boolean clearApplicationUserData(ComponentName admin, String packageName, 11772 IPackageDataObserver callback) { 11773 Preconditions.checkNotNull(admin, "ComponentName is null"); 11774 synchronized (this) { 11775 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11776 } 11777 final int userId = UserHandle.getCallingUserId(); 11778 11779 long ident = mInjector.binderClearCallingIdentity(); 11780 try { 11781 return ActivityManager.getService().clearApplicationUserData(packageName, false, 11782 callback, userId); 11783 } catch(RemoteException re) { 11784 // Same process, should not happen. 11785 } catch (SecurityException se) { 11786 // This can happen e.g. for device admin packages, do not throw out the exception, 11787 // because callers have no means to know beforehand for which packages this might 11788 // happen. 11789 Slog.w(LOG_TAG, "Not allowed to clear application user data for package " + packageName, 11790 se); 11791 } finally { 11792 mInjector.binderRestoreCallingIdentity(ident); 11793 } 11794 11795 if (callback != null) { 11796 try { 11797 // If there was a throw above, we send back that removal failed 11798 callback.onRemoveCompleted(packageName, false); 11799 } catch (RemoteException re) { 11800 // Caller is no longer available, ignore 11801 } 11802 } 11803 return false; 11804 } 11805 11806 @Override 11807 public synchronized void setLogoutEnabled(ComponentName admin, boolean enabled) { 11808 if (!mHasFeature) { 11809 return; 11810 } 11811 Preconditions.checkNotNull(admin); 11812 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11813 11814 if (enabled == isLogoutEnabledInternalLocked()) { 11815 // already in the requested state 11816 return; 11817 } 11818 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 11819 deviceOwner.isLogoutEnabled = enabled; 11820 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 11821 } 11822 11823 @Override 11824 public boolean isLogoutEnabled() { 11825 if (!mHasFeature) { 11826 return false; 11827 } 11828 synchronized (this) { 11829 return isLogoutEnabledInternalLocked(); 11830 } 11831 } 11832 11833 private boolean isLogoutEnabledInternalLocked() { 11834 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 11835 return (deviceOwner != null) && deviceOwner.isLogoutEnabled; 11836 } 11837 11838 @Override 11839 public List<String> getDisallowedSystemApps(ComponentName admin, int userId, 11840 String provisioningAction) throws RemoteException { 11841 enforceCanManageProfileAndDeviceOwners(); 11842 return new ArrayList<>( 11843 mOverlayPackagesProvider.getNonRequiredApps(admin, userId, provisioningAction)); 11844 } 11845 11846 //TODO: Add callback information to the javadoc once it is completed. 11847 //TODO: Make transferOwner atomic. 11848 @Override 11849 public void transferOwner(ComponentName admin, ComponentName target, PersistableBundle bundle) { 11850 if (!mHasFeature) { 11851 return; 11852 } 11853 11854 Preconditions.checkNotNull(admin, "Admin cannot be null."); 11855 Preconditions.checkNotNull(target, "Target cannot be null."); 11856 11857 enforceProfileOrDeviceOwner(admin); 11858 11859 if (admin.equals(target)) { 11860 throw new IllegalArgumentException("Provided administrator and target are " 11861 + "the same object."); 11862 } 11863 11864 if (admin.getPackageName().equals(target.getPackageName())) { 11865 throw new IllegalArgumentException("Provided administrator and target have " 11866 + "the same package name."); 11867 } 11868 11869 final int callingUserId = mInjector.userHandleGetCallingUserId(); 11870 final DevicePolicyData policy = getUserData(callingUserId); 11871 final DeviceAdminInfo incomingDeviceInfo = findAdmin(target, callingUserId, 11872 /* throwForMissingPermission= */ true); 11873 checkActiveAdminPrecondition(target, incomingDeviceInfo, policy); 11874 11875 final long id = mInjector.binderClearCallingIdentity(); 11876 try { 11877 //STOPSHIP add support for COMP, edge cases when device is rebooted/work mode off, 11878 //transfer callbacks and broadcast 11879 synchronized (this) { 11880 if (isProfileOwner(admin, callingUserId)) { 11881 transferProfileOwnerLocked(admin, target, callingUserId); 11882 } else if (isDeviceOwner(admin, callingUserId)) { 11883 transferDeviceOwnerLocked(admin, target, callingUserId); 11884 } 11885 } 11886 } finally { 11887 mInjector.binderRestoreCallingIdentity(id); 11888 } 11889 } 11890 11891 /** 11892 * Transfers the profile owner for user with id profileOwnerUserId from admin to target. 11893 */ 11894 private void transferProfileOwnerLocked(ComponentName admin, ComponentName target, 11895 int profileOwnerUserId) { 11896 transferActiveAdminUncheckedLocked(target, admin, profileOwnerUserId); 11897 mOwners.transferProfileOwner(target, profileOwnerUserId); 11898 Slog.i(LOG_TAG, "Profile owner set: " + target + " on user " + profileOwnerUserId); 11899 mOwners.writeProfileOwner(profileOwnerUserId); 11900 mDeviceAdminServiceController.startServiceForOwner( 11901 target.getPackageName(), profileOwnerUserId, "transfer-profile-owner"); 11902 } 11903 11904 /** 11905 * Transfers the device owner for user with id userId from admin to target. 11906 */ 11907 private void transferDeviceOwnerLocked(ComponentName admin, ComponentName target, int userId) { 11908 transferActiveAdminUncheckedLocked(target, admin, userId); 11909 mOwners.transferDeviceOwner(target); 11910 Slog.i(LOG_TAG, "Device owner set: " + target + " on user " + userId); 11911 mOwners.writeDeviceOwner(); 11912 mDeviceAdminServiceController.startServiceForOwner( 11913 target.getPackageName(), userId, "transfer-device-owner"); 11914 } 11915} 11916