DevicePolicyManagerService.java revision 05dc9f764c9d399add8b7495e680f66d098c55eb
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.MANAGE_CA_CERTIFICATES; 20import static android.app.admin.DevicePolicyManager.CODE_ACCOUNTS_NOT_EMPTY; 21import static android.app.admin.DevicePolicyManager.CODE_ADD_MANAGED_PROFILE_DISALLOWED; 22import static android.app.admin.DevicePolicyManager.CODE_CANNOT_ADD_MANAGED_PROFILE; 23import static android.app.admin.DevicePolicyManager.CODE_DEVICE_ADMIN_NOT_SUPPORTED; 24import static android.app.admin.DevicePolicyManager.CODE_HAS_DEVICE_OWNER; 25import static android.app.admin.DevicePolicyManager.CODE_HAS_PAIRED; 26import static android.app.admin.DevicePolicyManager.CODE_MANAGED_USERS_NOT_SUPPORTED; 27import static android.app.admin.DevicePolicyManager.CODE_NONSYSTEM_USER_EXISTS; 28import static android.app.admin.DevicePolicyManager.CODE_NOT_SYSTEM_USER; 29import static android.app.admin.DevicePolicyManager.CODE_NOT_SYSTEM_USER_SPLIT; 30import static android.app.admin.DevicePolicyManager.CODE_OK; 31import static android.app.admin.DevicePolicyManager.CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 32import static android.app.admin.DevicePolicyManager.CODE_SYSTEM_USER; 33import static android.app.admin.DevicePolicyManager.CODE_USER_HAS_PROFILE_OWNER; 34import static android.app.admin.DevicePolicyManager.CODE_USER_NOT_RUNNING; 35import static android.app.admin.DevicePolicyManager.CODE_USER_SETUP_COMPLETED; 36import static android.app.admin.DevicePolicyManager.DELEGATION_APP_RESTRICTIONS; 37import static android.app.admin.DevicePolicyManager.DELEGATION_BLOCK_UNINSTALL; 38import static android.app.admin.DevicePolicyManager.DELEGATION_CERT_INSTALL; 39import static android.app.admin.DevicePolicyManager.DELEGATION_ENABLE_SYSTEM_APP; 40import static android.app.admin.DevicePolicyManager.DELEGATION_KEEP_UNINSTALLED_PACKAGES; 41import static android.app.admin.DevicePolicyManager.DELEGATION_PACKAGE_ACCESS; 42import static android.app.admin.DevicePolicyManager.DELEGATION_PERMISSION_GRANT; 43import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 44import static android.app.admin.DevicePolicyManager.PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 45import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 46import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 47import static android.content.pm.PackageManager.MATCH_UNINSTALLED_PACKAGES; 48 49import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_ENTRY_POINT_ADB; 50import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 51import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 52import static org.xmlpull.v1.XmlPullParser.END_TAG; 53import static org.xmlpull.v1.XmlPullParser.TEXT; 54 55import android.Manifest.permission; 56import android.accessibilityservice.AccessibilityServiceInfo; 57import android.accounts.Account; 58import android.accounts.AccountManager; 59import android.annotation.NonNull; 60import android.annotation.Nullable; 61import android.annotation.UserIdInt; 62import android.app.Activity; 63import android.app.ActivityManager; 64import android.app.ActivityManagerInternal; 65import android.app.AlarmManager; 66import android.app.AppGlobals; 67import android.app.IActivityManager; 68import android.app.IApplicationThread; 69import android.app.IServiceConnection; 70import android.app.Notification; 71import android.app.NotificationManager; 72import android.app.PendingIntent; 73import android.app.StatusBarManager; 74import android.app.admin.DeviceAdminInfo; 75import android.app.admin.DeviceAdminReceiver; 76import android.app.admin.DevicePolicyManager; 77import android.app.admin.DevicePolicyManagerInternal; 78import android.app.admin.IDevicePolicyManager; 79import android.app.admin.NetworkEvent; 80import android.app.admin.PasswordMetrics; 81import android.app.admin.SystemUpdateInfo; 82import android.app.admin.SecurityLog; 83import android.app.admin.SecurityLog.SecurityEvent; 84import android.app.admin.SystemUpdatePolicy; 85import android.app.backup.IBackupManager; 86import android.app.trust.TrustManager; 87import android.content.BroadcastReceiver; 88import android.content.ComponentName; 89import android.content.Context; 90import android.content.Intent; 91import android.content.IntentFilter; 92import android.content.pm.ActivityInfo; 93import android.content.pm.ApplicationInfo; 94import android.content.pm.IPackageManager; 95import android.content.pm.PackageInfo; 96import android.content.pm.PackageManager; 97import android.content.pm.PackageManager.NameNotFoundException; 98import android.content.pm.PackageManagerInternal; 99import android.content.pm.ParceledListSlice; 100import android.content.pm.ResolveInfo; 101import android.content.pm.ServiceInfo; 102import android.content.pm.StringParceledListSlice; 103import android.content.pm.UserInfo; 104import android.content.res.Resources; 105import android.database.ContentObserver; 106import android.graphics.Bitmap; 107import android.graphics.Color; 108import android.media.AudioManager; 109import android.media.IAudioService; 110import android.net.ConnectivityManager; 111import android.net.IIpConnectivityMetrics; 112import android.net.ProxyInfo; 113import android.net.Uri; 114import android.net.metrics.IpConnectivityLog; 115import android.net.wifi.WifiInfo; 116import android.net.wifi.WifiManager; 117import android.os.AsyncTask; 118import android.os.Binder; 119import android.os.Build; 120import android.os.Bundle; 121import android.os.Environment; 122import android.os.FileUtils; 123import android.os.Handler; 124import android.os.IBinder; 125import android.os.Looper; 126import android.os.ParcelFileDescriptor; 127import android.os.PersistableBundle; 128import android.os.PowerManager; 129import android.os.PowerManagerInternal; 130import android.os.Process; 131import android.os.RecoverySystem; 132import android.os.RemoteCallback; 133import android.os.RemoteException; 134import android.os.ServiceManager; 135import android.os.SystemClock; 136import android.os.SystemProperties; 137import android.os.UserHandle; 138import android.os.UserManager; 139import android.os.UserManagerInternal; 140import android.os.storage.StorageManager; 141import android.provider.ContactsContract.QuickContact; 142import android.provider.ContactsInternal; 143import android.provider.Settings; 144import android.security.Credentials; 145import android.security.IKeyChainAliasCallback; 146import android.security.IKeyChainService; 147import android.security.KeyChain; 148import android.security.KeyChain.KeyChainConnection; 149import android.service.persistentdata.PersistentDataBlockManager; 150import android.telephony.TelephonyManager; 151import android.text.TextUtils; 152import android.util.ArrayMap; 153import android.util.ArraySet; 154import android.util.Log; 155import android.util.Pair; 156import android.util.Slog; 157import android.util.SparseArray; 158import android.util.Xml; 159import android.view.IWindowManager; 160import android.view.accessibility.AccessibilityManager; 161import android.view.accessibility.IAccessibilityManager; 162import android.view.inputmethod.InputMethodInfo; 163import android.view.inputmethod.InputMethodManager; 164 165import com.android.internal.R; 166import com.android.internal.annotations.GuardedBy; 167import com.android.internal.annotations.VisibleForTesting; 168import com.android.internal.logging.MetricsLogger; 169import com.android.internal.notification.SystemNotificationChannels; 170import com.android.internal.os.BackgroundThread; 171import com.android.internal.statusbar.IStatusBarService; 172import com.android.internal.util.FastXmlSerializer; 173import com.android.internal.util.JournaledFile; 174import com.android.internal.util.Preconditions; 175import com.android.internal.util.XmlUtils; 176import com.android.internal.widget.LockPatternUtils; 177import com.android.server.LocalServices; 178import com.android.server.SystemService; 179import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 180import com.android.server.pm.UserRestrictionsUtils; 181import com.google.android.collect.Sets; 182 183import org.xmlpull.v1.XmlPullParser; 184import org.xmlpull.v1.XmlPullParserException; 185import org.xmlpull.v1.XmlSerializer; 186 187import java.io.ByteArrayInputStream; 188import java.io.File; 189import java.io.FileDescriptor; 190import java.io.FileInputStream; 191import java.io.FileNotFoundException; 192import java.io.FileOutputStream; 193import java.io.IOException; 194import java.io.PrintWriter; 195import java.nio.charset.StandardCharsets; 196import java.security.cert.CertificateException; 197import java.security.cert.CertificateFactory; 198import java.security.cert.X509Certificate; 199import java.text.DateFormat; 200import java.text.NumberFormat; 201import java.util.ArrayList; 202import java.util.Arrays; 203import java.util.Collection; 204import java.util.Collections; 205import java.util.Date; 206import java.util.List; 207import java.util.Map.Entry; 208import java.util.Set; 209import java.util.concurrent.TimeUnit; 210import java.util.concurrent.atomic.AtomicBoolean; 211 212/** 213 * Implementation of the device policy APIs. 214 */ 215public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 216 217 protected static final String LOG_TAG = "DevicePolicyManager"; 218 219 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 220 221 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 222 223 private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate"; 224 225 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 226 227 private static final String TAG_STATUS_BAR = "statusbar"; 228 229 private static final String ATTR_DISABLED = "disabled"; 230 231 private static final String ATTR_NAME = "name"; 232 233 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 234 "do-not-ask-credentials-on-boot"; 235 236 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 237 238 private static final String TAG_LAST_SECURITY_LOG_RETRIEVAL = "last-security-log-retrieval"; 239 240 private static final String TAG_LAST_BUG_REPORT_REQUEST = "last-bug-report-request"; 241 242 private static final String TAG_LAST_NETWORK_LOG_RETRIEVAL = "last-network-log-retrieval"; 243 244 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 245 246 private static final String TAG_DEFAULT_INPUT_METHOD_SET = "default-ime-set"; 247 248 private static final String TAG_OWNER_INSTALLED_CA_CERT = "owner-installed-ca-cert"; 249 250 private static final String ATTR_ID = "id"; 251 252 private static final String ATTR_VALUE = "value"; 253 254 private static final String ATTR_ALIAS = "alias"; 255 256 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 257 258 private static final String TAG_PASSWORD_TOKEN_HANDLE = "password-token"; 259 260 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 261 262 private static final long MS_PER_DAY = TimeUnit.DAYS.toMillis(1); 263 264 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 265 266 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 267 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 268 269 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 270 private static final int NETWORK_LOGGING_NOTIFICATION_ID = 1002; 271 272 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 273 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 274 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 275 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 276 private static final String ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED = 277 "device-provisioning-config-applied"; 278 private static final String ATTR_DEVICE_PAIRED = "device-paired"; 279 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 280 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 281 = "application-restrictions-manager"; 282 283 // Comprehensive list of delegations. 284 private static final String DELEGATIONS[] = { 285 DELEGATION_CERT_INSTALL, 286 DELEGATION_APP_RESTRICTIONS, 287 DELEGATION_BLOCK_UNINSTALL, 288 DELEGATION_ENABLE_SYSTEM_APP, 289 DELEGATION_KEEP_UNINSTALLED_PACKAGES, 290 DELEGATION_PACKAGE_ACCESS, 291 DELEGATION_PERMISSION_GRANT 292 }; 293 294 /** 295 * System property whose value is either "true" or "false", indicating whether 296 * device owner is present. 297 */ 298 private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner"; 299 300 private static final int STATUS_BAR_DISABLE_MASK = 301 StatusBarManager.DISABLE_EXPAND | 302 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 303 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 304 StatusBarManager.DISABLE_SEARCH; 305 306 private static final int STATUS_BAR_DISABLE2_MASK = 307 StatusBarManager.DISABLE2_QUICK_SETTINGS; 308 309 private static final Set<String> SECURE_SETTINGS_WHITELIST; 310 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 311 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 312 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 313 static { 314 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 315 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 316 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 317 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 318 319 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 320 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 321 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 322 323 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 324 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 325 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 326 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 327 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 328 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 329 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 330 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 331 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 332 333 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 334 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 335 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 336 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 337 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 338 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 339 } 340 341 /** 342 * Keyguard features that when set on a profile affect the profile content or challenge only. 343 * These cannot be set on the managed profile's parent DPM instance 344 */ 345 private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY = 346 DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 347 348 /** Keyguard features that are allowed to be set on a managed profile */ 349 private static final int PROFILE_KEYGUARD_FEATURES = 350 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY; 351 352 private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000; 353 354 /** 355 * Minimum timeout in milliseconds after which unlocking with weak auth times out, 356 * i.e. the user has to use a strong authentication method like password, PIN or pattern. 357 */ 358 private static final long MINIMUM_STRONG_AUTH_TIMEOUT_MS = TimeUnit.HOURS.toMillis(1); 359 360 /** 361 * Strings logged with {@link 362 * com.android.internal.logging.nano.MetricsProto.MetricsEvent#PROVISIONING_ENTRY_POINT_ADB}. 363 */ 364 private static final String LOG_TAG_PROFILE_OWNER = "profile-owner"; 365 private static final String LOG_TAG_DEVICE_OWNER = "device-owner"; 366 367 final Context mContext; 368 final Injector mInjector; 369 final IPackageManager mIPackageManager; 370 final UserManager mUserManager; 371 final UserManagerInternal mUserManagerInternal; 372 final TelephonyManager mTelephonyManager; 373 private final LockPatternUtils mLockPatternUtils; 374 375 /** 376 * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p 377 * is requested for user u. 378 */ 379 private final Set<Pair<String, Integer>> mPackagesToRemove = 380 new ArraySet<Pair<String, Integer>>(); 381 382 final LocalService mLocalService; 383 384 // Stores and loads state on device and profile owners. 385 @VisibleForTesting 386 final Owners mOwners; 387 388 private final Binder mToken = new Binder(); 389 390 /** 391 * Whether or not device admin feature is supported. If it isn't return defaults for all 392 * public methods. 393 */ 394 boolean mHasFeature; 395 396 /** 397 * Whether or not this device is a watch. 398 */ 399 boolean mIsWatch; 400 401 private final SecurityLogMonitor mSecurityLogMonitor; 402 private NetworkLogger mNetworkLogger; 403 404 private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean(); 405 private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean(); 406 407 private SetupContentObserver mSetupContentObserver; 408 409 private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() { 410 @Override 411 public void run() { 412 if(mRemoteBugreportServiceIsActive.get()) { 413 onBugreportFailed(); 414 } 415 } 416 }; 417 418 /** Listens only if mHasFeature == true. */ 419 private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() { 420 421 @Override 422 public void onReceive(Context context, Intent intent) { 423 if (DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction()) 424 && mRemoteBugreportServiceIsActive.get()) { 425 onBugreportFinished(intent); 426 } 427 } 428 }; 429 430 /** Listens only if mHasFeature == true. */ 431 private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() { 432 433 @Override 434 public void onReceive(Context context, Intent intent) { 435 String action = intent.getAction(); 436 mInjector.getNotificationManager().cancel(LOG_TAG, 437 RemoteBugreportUtils.NOTIFICATION_ID); 438 if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED.equals(action)) { 439 onBugreportSharingAccepted(); 440 } else if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED.equals(action)) { 441 onBugreportSharingDeclined(); 442 } 443 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 444 } 445 }; 446 447 public static final class Lifecycle extends SystemService { 448 private DevicePolicyManagerService mService; 449 450 public Lifecycle(Context context) { 451 super(context); 452 mService = new DevicePolicyManagerService(context); 453 } 454 455 @Override 456 public void onStart() { 457 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 458 } 459 460 @Override 461 public void onBootPhase(int phase) { 462 mService.systemReady(phase); 463 } 464 465 @Override 466 public void onStartUser(int userHandle) { 467 mService.onStartUser(userHandle); 468 } 469 } 470 471 public static class DevicePolicyData { 472 @NonNull PasswordMetrics mActivePasswordMetrics = new PasswordMetrics(); 473 int mFailedPasswordAttempts = 0; 474 475 int mUserHandle; 476 int mPasswordOwner = -1; 477 long mLastMaximumTimeToLock = -1; 478 boolean mUserSetupComplete = false; 479 boolean mPaired = false; 480 int mUserProvisioningState; 481 int mPermissionPolicy; 482 483 boolean mDeviceProvisioningConfigApplied = false; 484 485 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 486 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 487 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 488 489 // TODO(b/35385311): Keep track of metadata in TrustedCertificateStore instead. 490 final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>(); 491 492 // This is the list of component allowed to start lock task mode. 493 List<String> mLockTaskPackages = new ArrayList<>(); 494 495 boolean mStatusBarDisabled = false; 496 497 ComponentName mRestrictionsProvider; 498 499 // Map of delegate package to delegation scopes 500 final ArrayMap<String, List<String>> mDelegationMap = new ArrayMap<>(); 501 502 boolean doNotAskCredentialsOnBoot = false; 503 504 Set<String> mAffiliationIds = new ArraySet<>(); 505 506 long mLastSecurityLogRetrievalTime = -1; 507 508 long mLastBugReportRequestTime = -1; 509 510 long mLastNetworkLogsRetrievalTime = -1; 511 512 boolean mDefaultInputMethodSet = false; 513 514 // TODO(b/35385311): Keep track of metadata in TrustedCertificateStore instead. 515 Set<String> mOwnerInstalledCaCerts = new ArraySet<>(); 516 517 // Used for initialization of users created by createAndManageUsers. 518 boolean mAdminBroadcastPending = false; 519 PersistableBundle mInitBundle = null; 520 521 long mPasswordTokenHandle = 0; 522 523 public DevicePolicyData(int userHandle) { 524 mUserHandle = userHandle; 525 } 526 } 527 528 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 529 530 final Handler mHandler; 531 final Handler mBackgroundHandler; 532 533 /** Listens on any device, even when mHasFeature == false. */ 534 final BroadcastReceiver mRootCaReceiver = new BroadcastReceiver() { 535 @Override 536 public void onReceive(Context context, Intent intent) { 537 if (StorageManager.inCryptKeeperBounce()) { 538 return; 539 } 540 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, getSendingUserId()); 541 new MonitoringCertNotificationTask(DevicePolicyManagerService.this, mInjector) 542 .execute(userHandle); 543 } 544 }; 545 546 /** Listens only if mHasFeature == true. */ 547 final BroadcastReceiver mReceiver = new BroadcastReceiver() { 548 @Override 549 public void onReceive(Context context, Intent intent) { 550 final String action = intent.getAction(); 551 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 552 getSendingUserId()); 553 554 /* 555 * Network logging would ideally be started in setDeviceOwnerSystemPropertyLocked(), 556 * however it's too early in the boot process to register with IIpConnectivityMetrics 557 * to listen for events. 558 */ 559 if (Intent.ACTION_USER_STARTED.equals(action) 560 && userHandle == mOwners.getDeviceOwnerUserId()) { 561 synchronized (DevicePolicyManagerService.this) { 562 if (isNetworkLoggingEnabledInternalLocked()) { 563 setNetworkLoggingActiveInternal(true); 564 } 565 } 566 } 567 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 568 && userHandle == mOwners.getDeviceOwnerUserId() 569 && getDeviceOwnerRemoteBugreportUri() != null) { 570 IntentFilter filterConsent = new IntentFilter(); 571 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 572 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 573 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 574 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 575 RemoteBugreportUtils.NOTIFICATION_ID, 576 RemoteBugreportUtils.buildNotification(mContext, 577 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 578 UserHandle.ALL); 579 } 580 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 581 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 582 if (VERBOSE_LOG) { 583 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 584 + action + " for user " + userHandle); 585 } 586 mHandler.post(new Runnable() { 587 @Override 588 public void run() { 589 handlePasswordExpirationNotification(userHandle); 590 } 591 }); 592 } 593 594 if (Intent.ACTION_USER_ADDED.equals(action)) { 595 sendUserAddedOrRemovedCommand(DeviceAdminReceiver.ACTION_USER_ADDED, userHandle); 596 synchronized (DevicePolicyManagerService.this) { 597 // It might take a while for the user to become affiliated. Make security 598 // and network logging unavailable in the meantime. 599 maybePauseDeviceWideLoggingLocked(); 600 } 601 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 602 sendUserAddedOrRemovedCommand(DeviceAdminReceiver.ACTION_USER_REMOVED, userHandle); 603 synchronized (DevicePolicyManagerService.this) { 604 // Check whether the user is affiliated, *before* removing its data. 605 boolean isRemovedUserAffiliated = isUserAffiliatedWithDeviceLocked(userHandle); 606 removeUserData(userHandle); 607 if (!isRemovedUserAffiliated) { 608 // We discard the logs when unaffiliated users are deleted (so that the 609 // device owner cannot retrieve data about that user after it's gone). 610 discardDeviceWideLogsLocked(); 611 // Resume logging if all remaining users are affiliated. 612 maybeResumeDeviceWideLoggingLocked(); 613 } 614 } 615 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 616 synchronized (DevicePolicyManagerService.this) { 617 // Reset the policy data 618 mUserData.remove(userHandle); 619 sendAdminEnabledBroadcastLocked(userHandle); 620 } 621 handlePackagesChanged(null /* check all admins */, userHandle); 622 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 623 handlePackagesChanged(null /* check all admins */, userHandle); 624 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 625 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 626 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 627 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 628 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 629 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 630 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 631 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 632 clearWipeProfileNotification(); 633 } else if (KeyChain.ACTION_TRUST_STORE_CHANGED.equals(intent.getAction())) { 634 mBackgroundHandler.post(() -> { 635 try (final KeyChainConnection keyChainConnection = mInjector.keyChainBindAsUser( 636 UserHandle.of(userHandle))) { 637 final List<String> caCerts = 638 keyChainConnection.getService().getUserCaAliases().getList(); 639 synchronized (DevicePolicyManagerService.this) { 640 if (getUserData(userHandle).mOwnerInstalledCaCerts 641 .retainAll(caCerts)) { 642 saveSettingsLocked(userHandle); 643 } 644 } 645 } catch (InterruptedException e) { 646 Slog.w(LOG_TAG, "error talking to IKeyChainService", e); 647 Thread.currentThread().interrupt(); 648 } catch (RemoteException e) { 649 Slog.w(LOG_TAG, "error talking to IKeyChainService", e); 650 } 651 }); 652 } 653 } 654 655 private void sendUserAddedOrRemovedCommand(String action, int userHandle) { 656 synchronized (DevicePolicyManagerService.this) { 657 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 658 if (deviceOwner != null) { 659 Bundle extras = new Bundle(); 660 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 661 sendAdminCommandLocked(deviceOwner, action, extras, null); 662 } 663 } 664 } 665 }; 666 667 static class ActiveAdmin { 668 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 669 private static final String TAG_TEST_ONLY_ADMIN = "test-only-admin"; 670 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 671 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 672 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 673 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 674 = "disable-bt-contacts-sharing"; 675 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 676 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 677 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 678 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 679 private static final String TAG_IS_NETWORK_LOGGING_ENABLED = "is_network_logging_enabled"; 680 private static final String TAG_ACCOUNT_TYPE = "account-type"; 681 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 682 = "permitted-accessiblity-services"; 683 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 684 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 685 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 686 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 687 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 688 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 689 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 690 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 691 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 692 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 693 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 694 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 695 private static final String TAG_STRONG_AUTH_UNLOCK_TIMEOUT = "strong-auth-unlock-timeout"; 696 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 697 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 698 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 699 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 700 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 701 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 702 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 703 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 704 private static final String ATTR_VALUE = "value"; 705 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 706 private static final String TAG_POLICIES = "policies"; 707 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 708 "cross-profile-widget-providers"; 709 private static final String TAG_PROVIDER = "provider"; 710 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 711 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 712 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 713 private static final String TAG_DEFAULT_ENABLED_USER_RESTRICTIONS = 714 "default-enabled-user-restrictions"; 715 private static final String TAG_RESTRICTION = "restriction"; 716 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 717 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 718 private static final String TAG_PARENT_ADMIN = "parent-admin"; 719 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 720 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 721 private static final String ATTR_LAST_NETWORK_LOGGING_NOTIFICATION = "last-notification"; 722 private static final String ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS = "num-notifications"; 723 724 final DeviceAdminInfo info; 725 726 727 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 728 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 729 730 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 731 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 732 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 733 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 734 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 735 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 736 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 737 @NonNull 738 PasswordMetrics minimumPasswordMetrics = new PasswordMetrics( 739 DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED, DEF_MINIMUM_PASSWORD_LENGTH, 740 DEF_MINIMUM_PASSWORD_LETTERS, DEF_MINIMUM_PASSWORD_UPPER_CASE, 741 DEF_MINIMUM_PASSWORD_LOWER_CASE, DEF_MINIMUM_PASSWORD_NUMERIC, 742 DEF_MINIMUM_PASSWORD_SYMBOLS, DEF_MINIMUM_PASSWORD_NON_LETTER); 743 744 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 745 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 746 747 long strongAuthUnlockTimeout = 0; // admin doesn't participate by default 748 749 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 750 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 751 752 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 753 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 754 755 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 756 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 757 758 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 759 760 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 761 762 boolean encryptionRequested = false; 763 boolean testOnlyAdmin = false; 764 boolean disableCamera = false; 765 boolean disableCallerId = false; 766 boolean disableContactsSearch = false; 767 boolean disableBluetoothContactSharing = true; 768 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 769 boolean requireAutoTime = false; // Can only be set by a device owner. 770 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 771 boolean isNetworkLoggingEnabled = false; // Can only be set by a device owner. 772 773 // one notification after enabling + 3 more after reboots 774 static final int DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN = 4; 775 int numNetworkLoggingNotifications = 0; 776 long lastNetworkLoggingNotificationTimeMs = 0; // Time in milliseconds since epoch 777 778 ActiveAdmin parentAdmin; 779 final boolean isParent; 780 781 static class TrustAgentInfo { 782 public PersistableBundle options; 783 TrustAgentInfo(PersistableBundle bundle) { 784 options = bundle; 785 } 786 } 787 788 final Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 789 790 // The list of permitted accessibility services package namesas set by a profile 791 // or device owner. Null means all accessibility services are allowed, empty means 792 // none except system services are allowed. 793 List<String> permittedAccessiblityServices; 794 795 // The list of permitted input methods package names as set by a profile or device owner. 796 // Null means all input methods are allowed, empty means none except system imes are 797 // allowed. 798 List<String> permittedInputMethods; 799 800 // List of package names to keep cached. 801 List<String> keepUninstalledPackages; 802 803 // TODO: review implementation decisions with frameworks team 804 boolean specifiesGlobalProxy = false; 805 String globalProxySpec = null; 806 String globalProxyExclusionList = null; 807 808 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 809 810 List<String> crossProfileWidgetProviders; 811 812 Bundle userRestrictions; 813 814 // User restrictions that have already been enabled by default for this admin (either when 815 // setting the device or profile owner, or during a system update if one of those "enabled 816 // by default" restrictions is newly added). 817 final Set<String> defaultEnabledRestrictionsAlreadySet = new ArraySet<>(); 818 819 // Support text provided by the admin to display to the user. 820 CharSequence shortSupportMessage = null; 821 CharSequence longSupportMessage = null; 822 823 // Background color of confirm credentials screen. Default: teal. 824 static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B"); 825 int organizationColor = DEF_ORGANIZATION_COLOR; 826 827 // Default title of confirm credentials screen 828 String organizationName = null; 829 830 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 831 info = _info; 832 isParent = parent; 833 } 834 835 ActiveAdmin getParentActiveAdmin() { 836 Preconditions.checkState(!isParent); 837 838 if (parentAdmin == null) { 839 parentAdmin = new ActiveAdmin(info, /* parent */ true); 840 } 841 return parentAdmin; 842 } 843 844 boolean hasParentActiveAdmin() { 845 return parentAdmin != null; 846 } 847 848 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 849 850 public UserHandle getUserHandle() { 851 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 852 } 853 854 void writeToXml(XmlSerializer out) 855 throws IllegalArgumentException, IllegalStateException, IOException { 856 out.startTag(null, TAG_POLICIES); 857 info.writePoliciesToXml(out); 858 out.endTag(null, TAG_POLICIES); 859 if (minimumPasswordMetrics.quality 860 != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 861 out.startTag(null, TAG_PASSWORD_QUALITY); 862 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.quality)); 863 out.endTag(null, TAG_PASSWORD_QUALITY); 864 if (minimumPasswordMetrics.length != DEF_MINIMUM_PASSWORD_LENGTH) { 865 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 866 out.attribute( 867 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.length)); 868 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 869 } 870 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 871 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 872 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 873 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 874 } 875 if (minimumPasswordMetrics.upperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 876 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 877 out.attribute( 878 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.upperCase)); 879 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 880 } 881 if (minimumPasswordMetrics.lowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 882 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 883 out.attribute( 884 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.lowerCase)); 885 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 886 } 887 if (minimumPasswordMetrics.letters != DEF_MINIMUM_PASSWORD_LETTERS) { 888 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 889 out.attribute( 890 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.letters)); 891 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 892 } 893 if (minimumPasswordMetrics.numeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 894 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 895 out.attribute( 896 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.numeric)); 897 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 898 } 899 if (minimumPasswordMetrics.symbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 900 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 901 out.attribute( 902 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.symbols)); 903 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 904 } 905 if (minimumPasswordMetrics.nonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 906 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 907 out.attribute( 908 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.nonLetter)); 909 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 910 } 911 } 912 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 913 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 914 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 915 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 916 } 917 if (strongAuthUnlockTimeout != DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 918 out.startTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 919 out.attribute(null, ATTR_VALUE, Long.toString(strongAuthUnlockTimeout)); 920 out.endTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 921 } 922 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 923 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 924 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 925 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 926 } 927 if (specifiesGlobalProxy) { 928 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 929 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 930 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 931 if (globalProxySpec != null) { 932 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 933 out.attribute(null, ATTR_VALUE, globalProxySpec); 934 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 935 } 936 if (globalProxyExclusionList != null) { 937 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 938 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 939 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 940 } 941 } 942 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 943 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 944 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 945 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 946 } 947 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 948 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 949 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 950 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 951 } 952 if (encryptionRequested) { 953 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 954 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 955 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 956 } 957 if (testOnlyAdmin) { 958 out.startTag(null, TAG_TEST_ONLY_ADMIN); 959 out.attribute(null, ATTR_VALUE, Boolean.toString(testOnlyAdmin)); 960 out.endTag(null, TAG_TEST_ONLY_ADMIN); 961 } 962 if (disableCamera) { 963 out.startTag(null, TAG_DISABLE_CAMERA); 964 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 965 out.endTag(null, TAG_DISABLE_CAMERA); 966 } 967 if (disableCallerId) { 968 out.startTag(null, TAG_DISABLE_CALLER_ID); 969 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 970 out.endTag(null, TAG_DISABLE_CALLER_ID); 971 } 972 if (disableContactsSearch) { 973 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 974 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 975 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 976 } 977 if (!disableBluetoothContactSharing) { 978 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 979 out.attribute(null, ATTR_VALUE, 980 Boolean.toString(disableBluetoothContactSharing)); 981 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 982 } 983 if (disableScreenCapture) { 984 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 985 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 986 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 987 } 988 if (requireAutoTime) { 989 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 990 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 991 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 992 } 993 if (forceEphemeralUsers) { 994 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 995 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 996 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 997 } 998 if (isNetworkLoggingEnabled) { 999 out.startTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 1000 out.attribute(null, ATTR_VALUE, Boolean.toString(isNetworkLoggingEnabled)); 1001 out.attribute(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS, 1002 Integer.toString(numNetworkLoggingNotifications)); 1003 out.attribute(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION, 1004 Long.toString(lastNetworkLoggingNotificationTimeMs)); 1005 out.endTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 1006 } 1007 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 1008 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 1009 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 1010 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 1011 } 1012 if (!accountTypesWithManagementDisabled.isEmpty()) { 1013 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 1014 writeAttributeValuesToXml( 1015 out, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1016 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 1017 } 1018 if (!trustAgentInfos.isEmpty()) { 1019 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 1020 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1021 for (Entry<String, TrustAgentInfo> entry : set) { 1022 TrustAgentInfo trustAgentInfo = entry.getValue(); 1023 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 1024 out.attribute(null, ATTR_VALUE, entry.getKey()); 1025 if (trustAgentInfo.options != null) { 1026 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1027 try { 1028 trustAgentInfo.options.saveToXml(out); 1029 } catch (XmlPullParserException e) { 1030 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 1031 } 1032 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1033 } 1034 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 1035 } 1036 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1037 } 1038 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 1039 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1040 writeAttributeValuesToXml(out, TAG_PROVIDER, crossProfileWidgetProviders); 1041 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1042 } 1043 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 1044 permittedAccessiblityServices); 1045 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 1046 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 1047 if (hasUserRestrictions()) { 1048 UserRestrictionsUtils.writeRestrictions( 1049 out, userRestrictions, TAG_USER_RESTRICTIONS); 1050 } 1051 if (!defaultEnabledRestrictionsAlreadySet.isEmpty()) { 1052 out.startTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1053 writeAttributeValuesToXml( 1054 out, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1055 out.endTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1056 } 1057 if (!TextUtils.isEmpty(shortSupportMessage)) { 1058 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1059 out.text(shortSupportMessage.toString()); 1060 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1061 } 1062 if (!TextUtils.isEmpty(longSupportMessage)) { 1063 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 1064 out.text(longSupportMessage.toString()); 1065 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 1066 } 1067 if (parentAdmin != null) { 1068 out.startTag(null, TAG_PARENT_ADMIN); 1069 parentAdmin.writeToXml(out); 1070 out.endTag(null, TAG_PARENT_ADMIN); 1071 } 1072 if (organizationColor != DEF_ORGANIZATION_COLOR) { 1073 out.startTag(null, TAG_ORGANIZATION_COLOR); 1074 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 1075 out.endTag(null, TAG_ORGANIZATION_COLOR); 1076 } 1077 if (organizationName != null) { 1078 out.startTag(null, TAG_ORGANIZATION_NAME); 1079 out.text(organizationName); 1080 out.endTag(null, TAG_ORGANIZATION_NAME); 1081 } 1082 } 1083 1084 void writePackageListToXml(XmlSerializer out, String outerTag, 1085 List<String> packageList) 1086 throws IllegalArgumentException, IllegalStateException, IOException { 1087 if (packageList == null) { 1088 return; 1089 } 1090 1091 out.startTag(null, outerTag); 1092 writeAttributeValuesToXml(out, TAG_PACKAGE_LIST_ITEM, packageList); 1093 out.endTag(null, outerTag); 1094 } 1095 1096 void writeAttributeValuesToXml(XmlSerializer out, String tag, 1097 @NonNull Collection<String> values) throws IOException { 1098 for (String value : values) { 1099 out.startTag(null, tag); 1100 out.attribute(null, ATTR_VALUE, value); 1101 out.endTag(null, tag); 1102 } 1103 } 1104 1105 void readFromXml(XmlPullParser parser) 1106 throws XmlPullParserException, IOException { 1107 int outerDepth = parser.getDepth(); 1108 int type; 1109 while ((type=parser.next()) != END_DOCUMENT 1110 && (type != END_TAG || parser.getDepth() > outerDepth)) { 1111 if (type == END_TAG || type == TEXT) { 1112 continue; 1113 } 1114 String tag = parser.getName(); 1115 if (TAG_POLICIES.equals(tag)) { 1116 info.readPoliciesFromXml(parser); 1117 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 1118 minimumPasswordMetrics.quality = Integer.parseInt( 1119 parser.getAttributeValue(null, ATTR_VALUE)); 1120 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 1121 minimumPasswordMetrics.length = Integer.parseInt( 1122 parser.getAttributeValue(null, ATTR_VALUE)); 1123 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 1124 passwordHistoryLength = Integer.parseInt( 1125 parser.getAttributeValue(null, ATTR_VALUE)); 1126 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 1127 minimumPasswordMetrics.upperCase = Integer.parseInt( 1128 parser.getAttributeValue(null, ATTR_VALUE)); 1129 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 1130 minimumPasswordMetrics.lowerCase = Integer.parseInt( 1131 parser.getAttributeValue(null, ATTR_VALUE)); 1132 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 1133 minimumPasswordMetrics.letters = Integer.parseInt( 1134 parser.getAttributeValue(null, ATTR_VALUE)); 1135 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 1136 minimumPasswordMetrics.numeric = Integer.parseInt( 1137 parser.getAttributeValue(null, ATTR_VALUE)); 1138 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 1139 minimumPasswordMetrics.symbols = Integer.parseInt( 1140 parser.getAttributeValue(null, ATTR_VALUE)); 1141 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 1142 minimumPasswordMetrics.nonLetter = Integer.parseInt( 1143 parser.getAttributeValue(null, ATTR_VALUE)); 1144 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 1145 maximumTimeToUnlock = Long.parseLong( 1146 parser.getAttributeValue(null, ATTR_VALUE)); 1147 } else if (TAG_STRONG_AUTH_UNLOCK_TIMEOUT.equals(tag)) { 1148 strongAuthUnlockTimeout = Long.parseLong( 1149 parser.getAttributeValue(null, ATTR_VALUE)); 1150 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 1151 maximumFailedPasswordsForWipe = Integer.parseInt( 1152 parser.getAttributeValue(null, ATTR_VALUE)); 1153 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 1154 specifiesGlobalProxy = Boolean.parseBoolean( 1155 parser.getAttributeValue(null, ATTR_VALUE)); 1156 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 1157 globalProxySpec = 1158 parser.getAttributeValue(null, ATTR_VALUE); 1159 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 1160 globalProxyExclusionList = 1161 parser.getAttributeValue(null, ATTR_VALUE); 1162 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 1163 passwordExpirationTimeout = Long.parseLong( 1164 parser.getAttributeValue(null, ATTR_VALUE)); 1165 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 1166 passwordExpirationDate = Long.parseLong( 1167 parser.getAttributeValue(null, ATTR_VALUE)); 1168 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 1169 encryptionRequested = Boolean.parseBoolean( 1170 parser.getAttributeValue(null, ATTR_VALUE)); 1171 } else if (TAG_TEST_ONLY_ADMIN.equals(tag)) { 1172 testOnlyAdmin = Boolean.parseBoolean( 1173 parser.getAttributeValue(null, ATTR_VALUE)); 1174 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 1175 disableCamera = Boolean.parseBoolean( 1176 parser.getAttributeValue(null, ATTR_VALUE)); 1177 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 1178 disableCallerId = Boolean.parseBoolean( 1179 parser.getAttributeValue(null, ATTR_VALUE)); 1180 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 1181 disableContactsSearch = Boolean.parseBoolean( 1182 parser.getAttributeValue(null, ATTR_VALUE)); 1183 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 1184 disableBluetoothContactSharing = Boolean.parseBoolean(parser 1185 .getAttributeValue(null, ATTR_VALUE)); 1186 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 1187 disableScreenCapture = Boolean.parseBoolean( 1188 parser.getAttributeValue(null, ATTR_VALUE)); 1189 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 1190 requireAutoTime = Boolean.parseBoolean( 1191 parser.getAttributeValue(null, ATTR_VALUE)); 1192 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 1193 forceEphemeralUsers = Boolean.parseBoolean( 1194 parser.getAttributeValue(null, ATTR_VALUE)); 1195 } else if (TAG_IS_NETWORK_LOGGING_ENABLED.equals(tag)) { 1196 isNetworkLoggingEnabled = Boolean.parseBoolean( 1197 parser.getAttributeValue(null, ATTR_VALUE)); 1198 lastNetworkLoggingNotificationTimeMs = Long.parseLong( 1199 parser.getAttributeValue(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION)); 1200 numNetworkLoggingNotifications = Integer.parseInt( 1201 parser.getAttributeValue(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS)); 1202 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 1203 disabledKeyguardFeatures = Integer.parseInt( 1204 parser.getAttributeValue(null, ATTR_VALUE)); 1205 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 1206 readAttributeValues( 1207 parser, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1208 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 1209 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 1210 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 1211 crossProfileWidgetProviders = new ArrayList<>(); 1212 readAttributeValues(parser, TAG_PROVIDER, crossProfileWidgetProviders); 1213 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 1214 permittedAccessiblityServices = readPackageList(parser, tag); 1215 } else if (TAG_PERMITTED_IMES.equals(tag)) { 1216 permittedInputMethods = readPackageList(parser, tag); 1217 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 1218 keepUninstalledPackages = readPackageList(parser, tag); 1219 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 1220 userRestrictions = UserRestrictionsUtils.readRestrictions(parser); 1221 } else if (TAG_DEFAULT_ENABLED_USER_RESTRICTIONS.equals(tag)) { 1222 readAttributeValues( 1223 parser, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1224 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 1225 type = parser.next(); 1226 if (type == XmlPullParser.TEXT) { 1227 shortSupportMessage = parser.getText(); 1228 } else { 1229 Log.w(LOG_TAG, "Missing text when loading short support message"); 1230 } 1231 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 1232 type = parser.next(); 1233 if (type == XmlPullParser.TEXT) { 1234 longSupportMessage = parser.getText(); 1235 } else { 1236 Log.w(LOG_TAG, "Missing text when loading long support message"); 1237 } 1238 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1239 Preconditions.checkState(!isParent); 1240 1241 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1242 parentAdmin.readFromXml(parser); 1243 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1244 organizationColor = Integer.parseInt( 1245 parser.getAttributeValue(null, ATTR_VALUE)); 1246 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1247 type = parser.next(); 1248 if (type == XmlPullParser.TEXT) { 1249 organizationName = parser.getText(); 1250 } else { 1251 Log.w(LOG_TAG, "Missing text when loading organization name"); 1252 } 1253 } else { 1254 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1255 XmlUtils.skipCurrentTag(parser); 1256 } 1257 } 1258 } 1259 1260 private List<String> readPackageList(XmlPullParser parser, 1261 String tag) throws XmlPullParserException, IOException { 1262 List<String> result = new ArrayList<String>(); 1263 int outerDepth = parser.getDepth(); 1264 int outerType; 1265 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1266 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1267 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1268 continue; 1269 } 1270 String outerTag = parser.getName(); 1271 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1272 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1273 if (packageName != null) { 1274 result.add(packageName); 1275 } else { 1276 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1277 } 1278 } else { 1279 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1280 } 1281 } 1282 return result; 1283 } 1284 1285 private void readAttributeValues( 1286 XmlPullParser parser, String tag, Collection<String> result) 1287 throws XmlPullParserException, IOException { 1288 result.clear(); 1289 int outerDepthDAM = parser.getDepth(); 1290 int typeDAM; 1291 while ((typeDAM=parser.next()) != END_DOCUMENT 1292 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1293 if (typeDAM == END_TAG || typeDAM == TEXT) { 1294 continue; 1295 } 1296 String tagDAM = parser.getName(); 1297 if (tag.equals(tagDAM)) { 1298 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1299 } else { 1300 Slog.e(LOG_TAG, "Expected tag " + tag + " but found " + tagDAM); 1301 } 1302 } 1303 } 1304 1305 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1306 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1307 int outerDepthDAM = parser.getDepth(); 1308 int typeDAM; 1309 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1310 while ((typeDAM=parser.next()) != END_DOCUMENT 1311 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1312 if (typeDAM == END_TAG || typeDAM == TEXT) { 1313 continue; 1314 } 1315 String tagDAM = parser.getName(); 1316 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1317 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1318 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1319 result.put(component, trustAgentInfo); 1320 } else { 1321 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1322 } 1323 } 1324 return result; 1325 } 1326 1327 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1328 throws XmlPullParserException, IOException { 1329 int outerDepthDAM = parser.getDepth(); 1330 int typeDAM; 1331 TrustAgentInfo result = new TrustAgentInfo(null); 1332 while ((typeDAM=parser.next()) != END_DOCUMENT 1333 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1334 if (typeDAM == END_TAG || typeDAM == TEXT) { 1335 continue; 1336 } 1337 String tagDAM = parser.getName(); 1338 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 1339 result.options = PersistableBundle.restoreFromXml(parser); 1340 } else { 1341 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1342 } 1343 } 1344 return result; 1345 } 1346 1347 boolean hasUserRestrictions() { 1348 return userRestrictions != null && userRestrictions.size() > 0; 1349 } 1350 1351 Bundle ensureUserRestrictions() { 1352 if (userRestrictions == null) { 1353 userRestrictions = new Bundle(); 1354 } 1355 return userRestrictions; 1356 } 1357 1358 void dump(String prefix, PrintWriter pw) { 1359 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1360 pw.print(prefix); pw.print("testOnlyAdmin="); 1361 pw.println(testOnlyAdmin); 1362 pw.print(prefix); pw.println("policies:"); 1363 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1364 if (pols != null) { 1365 for (int i=0; i<pols.size(); i++) { 1366 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1367 } 1368 } 1369 pw.print(prefix); pw.print("passwordQuality=0x"); 1370 pw.println(Integer.toHexString(minimumPasswordMetrics.quality)); 1371 pw.print(prefix); pw.print("minimumPasswordLength="); 1372 pw.println(minimumPasswordMetrics.length); 1373 pw.print(prefix); pw.print("passwordHistoryLength="); 1374 pw.println(passwordHistoryLength); 1375 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1376 pw.println(minimumPasswordMetrics.upperCase); 1377 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1378 pw.println(minimumPasswordMetrics.lowerCase); 1379 pw.print(prefix); pw.print("minimumPasswordLetters="); 1380 pw.println(minimumPasswordMetrics.letters); 1381 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1382 pw.println(minimumPasswordMetrics.numeric); 1383 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1384 pw.println(minimumPasswordMetrics.symbols); 1385 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1386 pw.println(minimumPasswordMetrics.nonLetter); 1387 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1388 pw.println(maximumTimeToUnlock); 1389 pw.print(prefix); pw.print("strongAuthUnlockTimeout="); 1390 pw.println(strongAuthUnlockTimeout); 1391 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1392 pw.println(maximumFailedPasswordsForWipe); 1393 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1394 pw.println(specifiesGlobalProxy); 1395 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1396 pw.println(passwordExpirationTimeout); 1397 pw.print(prefix); pw.print("passwordExpirationDate="); 1398 pw.println(passwordExpirationDate); 1399 if (globalProxySpec != null) { 1400 pw.print(prefix); pw.print("globalProxySpec="); 1401 pw.println(globalProxySpec); 1402 } 1403 if (globalProxyExclusionList != null) { 1404 pw.print(prefix); pw.print("globalProxyEclusionList="); 1405 pw.println(globalProxyExclusionList); 1406 } 1407 pw.print(prefix); pw.print("encryptionRequested="); 1408 pw.println(encryptionRequested); 1409 pw.print(prefix); pw.print("disableCamera="); 1410 pw.println(disableCamera); 1411 pw.print(prefix); pw.print("disableCallerId="); 1412 pw.println(disableCallerId); 1413 pw.print(prefix); pw.print("disableContactsSearch="); 1414 pw.println(disableContactsSearch); 1415 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1416 pw.println(disableBluetoothContactSharing); 1417 pw.print(prefix); pw.print("disableScreenCapture="); 1418 pw.println(disableScreenCapture); 1419 pw.print(prefix); pw.print("requireAutoTime="); 1420 pw.println(requireAutoTime); 1421 pw.print(prefix); pw.print("forceEphemeralUsers="); 1422 pw.println(forceEphemeralUsers); 1423 pw.print(prefix); pw.print("isNetworkLoggingEnabled="); 1424 pw.println(isNetworkLoggingEnabled); 1425 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1426 pw.println(disabledKeyguardFeatures); 1427 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1428 pw.println(crossProfileWidgetProviders); 1429 if (permittedAccessiblityServices != null) { 1430 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1431 pw.println(permittedAccessiblityServices); 1432 } 1433 if (permittedInputMethods != null) { 1434 pw.print(prefix); pw.print("permittedInputMethods="); 1435 pw.println(permittedInputMethods); 1436 } 1437 if (keepUninstalledPackages != null) { 1438 pw.print(prefix); pw.print("keepUninstalledPackages="); 1439 pw.println(keepUninstalledPackages); 1440 } 1441 pw.print(prefix); pw.print("organizationColor="); 1442 pw.println(organizationColor); 1443 if (organizationName != null) { 1444 pw.print(prefix); pw.print("organizationName="); 1445 pw.println(organizationName); 1446 } 1447 pw.print(prefix); pw.println("userRestrictions:"); 1448 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1449 pw.print(prefix); pw.print("defaultEnabledRestrictionsAlreadySet="); 1450 pw.println(defaultEnabledRestrictionsAlreadySet); 1451 pw.print(prefix); pw.print("isParent="); 1452 pw.println(isParent); 1453 if (parentAdmin != null) { 1454 pw.print(prefix); pw.println("parentAdmin:"); 1455 parentAdmin.dump(prefix + " ", pw); 1456 } 1457 } 1458 } 1459 1460 private void handlePackagesChanged(String packageName, int userHandle) { 1461 boolean removedAdmin = false; 1462 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1463 DevicePolicyData policy = getUserData(userHandle); 1464 synchronized (this) { 1465 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1466 ActiveAdmin aa = policy.mAdminList.get(i); 1467 try { 1468 // If we're checking all packages or if the specific one we're checking matches, 1469 // then check if the package and receiver still exist. 1470 final String adminPackage = aa.info.getPackageName(); 1471 if (packageName == null || packageName.equals(adminPackage)) { 1472 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1473 || mIPackageManager.getReceiverInfo(aa.info.getComponent(), 1474 PackageManager.MATCH_DIRECT_BOOT_AWARE 1475 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 1476 userHandle) == null) { 1477 removedAdmin = true; 1478 policy.mAdminList.remove(i); 1479 policy.mAdminMap.remove(aa.info.getComponent()); 1480 } 1481 } 1482 } catch (RemoteException re) { 1483 // Shouldn't happen. 1484 } 1485 } 1486 if (removedAdmin) { 1487 validatePasswordOwnerLocked(policy); 1488 } 1489 1490 boolean removedDelegate = false; 1491 1492 // Check if a delegate was removed. 1493 for (int i = policy.mDelegationMap.size() - 1; i >= 0; i--) { 1494 final String delegatePackage = policy.mDelegationMap.keyAt(i); 1495 if (isRemovedPackage(packageName, delegatePackage, userHandle)) { 1496 policy.mDelegationMap.removeAt(i); 1497 removedDelegate = true; 1498 } 1499 } 1500 1501 // Persist updates if the removed package was an admin or delegate. 1502 if (removedAdmin || removedDelegate) { 1503 saveSettingsLocked(policy.mUserHandle); 1504 } 1505 } 1506 if (removedAdmin) { 1507 // The removed admin might have disabled camera, so update user restrictions. 1508 pushUserRestrictions(userHandle); 1509 } 1510 } 1511 1512 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1513 try { 1514 return targetPackage != null 1515 && (changedPackage == null || changedPackage.equals(targetPackage)) 1516 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1517 } catch (RemoteException e) { 1518 // Shouldn't happen 1519 } 1520 1521 return false; 1522 } 1523 1524 /** 1525 * Unit test will subclass it to inject mocks. 1526 */ 1527 @VisibleForTesting 1528 static class Injector { 1529 1530 private final Context mContext; 1531 1532 Injector(Context context) { 1533 mContext = context; 1534 } 1535 1536 Context createContextAsUser(UserHandle user) throws PackageManager.NameNotFoundException { 1537 final String packageName = mContext.getPackageName(); 1538 return mContext.createPackageContextAsUser(packageName, 0, user); 1539 } 1540 1541 Resources getResources() { 1542 return mContext.getResources(); 1543 } 1544 1545 Owners newOwners() { 1546 return new Owners(getUserManager(), getUserManagerInternal(), 1547 getPackageManagerInternal()); 1548 } 1549 1550 UserManager getUserManager() { 1551 return UserManager.get(mContext); 1552 } 1553 1554 UserManagerInternal getUserManagerInternal() { 1555 return LocalServices.getService(UserManagerInternal.class); 1556 } 1557 1558 PackageManagerInternal getPackageManagerInternal() { 1559 return LocalServices.getService(PackageManagerInternal.class); 1560 } 1561 1562 NotificationManager getNotificationManager() { 1563 return mContext.getSystemService(NotificationManager.class); 1564 } 1565 1566 IIpConnectivityMetrics getIIpConnectivityMetrics() { 1567 return (IIpConnectivityMetrics) IIpConnectivityMetrics.Stub.asInterface( 1568 ServiceManager.getService(IpConnectivityLog.SERVICE_NAME)); 1569 } 1570 1571 PackageManager getPackageManager() { 1572 return mContext.getPackageManager(); 1573 } 1574 1575 PowerManagerInternal getPowerManagerInternal() { 1576 return LocalServices.getService(PowerManagerInternal.class); 1577 } 1578 1579 TelephonyManager getTelephonyManager() { 1580 return TelephonyManager.from(mContext); 1581 } 1582 1583 TrustManager getTrustManager() { 1584 return (TrustManager) mContext.getSystemService(Context.TRUST_SERVICE); 1585 } 1586 1587 AlarmManager getAlarmManager() { 1588 return (AlarmManager) mContext.getSystemService(AlarmManager.class); 1589 } 1590 1591 IWindowManager getIWindowManager() { 1592 return IWindowManager.Stub 1593 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1594 } 1595 1596 IActivityManager getIActivityManager() { 1597 return ActivityManager.getService(); 1598 } 1599 1600 IPackageManager getIPackageManager() { 1601 return AppGlobals.getPackageManager(); 1602 } 1603 1604 IBackupManager getIBackupManager() { 1605 return IBackupManager.Stub.asInterface( 1606 ServiceManager.getService(Context.BACKUP_SERVICE)); 1607 } 1608 1609 IAudioService getIAudioService() { 1610 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1611 } 1612 1613 boolean isBuildDebuggable() { 1614 return Build.IS_DEBUGGABLE; 1615 } 1616 1617 LockPatternUtils newLockPatternUtils() { 1618 return new LockPatternUtils(mContext); 1619 } 1620 1621 boolean storageManagerIsFileBasedEncryptionEnabled() { 1622 return StorageManager.isFileEncryptedNativeOnly(); 1623 } 1624 1625 boolean storageManagerIsNonDefaultBlockEncrypted() { 1626 long identity = Binder.clearCallingIdentity(); 1627 try { 1628 return StorageManager.isNonDefaultBlockEncrypted(); 1629 } finally { 1630 Binder.restoreCallingIdentity(identity); 1631 } 1632 } 1633 1634 boolean storageManagerIsEncrypted() { 1635 return StorageManager.isEncrypted(); 1636 } 1637 1638 boolean storageManagerIsEncryptable() { 1639 return StorageManager.isEncryptable(); 1640 } 1641 1642 Looper getMyLooper() { 1643 return Looper.myLooper(); 1644 } 1645 1646 WifiManager getWifiManager() { 1647 return mContext.getSystemService(WifiManager.class); 1648 } 1649 1650 long binderClearCallingIdentity() { 1651 return Binder.clearCallingIdentity(); 1652 } 1653 1654 void binderRestoreCallingIdentity(long token) { 1655 Binder.restoreCallingIdentity(token); 1656 } 1657 1658 int binderGetCallingUid() { 1659 return Binder.getCallingUid(); 1660 } 1661 1662 int binderGetCallingPid() { 1663 return Binder.getCallingPid(); 1664 } 1665 1666 UserHandle binderGetCallingUserHandle() { 1667 return Binder.getCallingUserHandle(); 1668 } 1669 1670 boolean binderIsCallingUidMyUid() { 1671 return getCallingUid() == Process.myUid(); 1672 } 1673 1674 final int userHandleGetCallingUserId() { 1675 return UserHandle.getUserId(binderGetCallingUid()); 1676 } 1677 1678 File environmentGetUserSystemDirectory(int userId) { 1679 return Environment.getUserSystemDirectory(userId); 1680 } 1681 1682 void powerManagerGoToSleep(long time, int reason, int flags) { 1683 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1684 } 1685 1686 void powerManagerReboot(String reason) { 1687 mContext.getSystemService(PowerManager.class).reboot(reason); 1688 } 1689 1690 void recoverySystemRebootWipeUserData(boolean shutdown, String reason, boolean force) 1691 throws IOException { 1692 RecoverySystem.rebootWipeUserData(mContext, shutdown, reason, force); 1693 } 1694 1695 boolean systemPropertiesGetBoolean(String key, boolean def) { 1696 return SystemProperties.getBoolean(key, def); 1697 } 1698 1699 long systemPropertiesGetLong(String key, long def) { 1700 return SystemProperties.getLong(key, def); 1701 } 1702 1703 String systemPropertiesGet(String key, String def) { 1704 return SystemProperties.get(key, def); 1705 } 1706 1707 String systemPropertiesGet(String key) { 1708 return SystemProperties.get(key); 1709 } 1710 1711 void systemPropertiesSet(String key, String value) { 1712 SystemProperties.set(key, value); 1713 } 1714 1715 boolean userManagerIsSplitSystemUser() { 1716 return UserManager.isSplitSystemUser(); 1717 } 1718 1719 String getDevicePolicyFilePathForSystemUser() { 1720 return "/data/system/"; 1721 } 1722 1723 void registerContentObserver(Uri uri, boolean notifyForDescendents, 1724 ContentObserver observer, int userHandle) { 1725 mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents, 1726 observer, userHandle); 1727 } 1728 1729 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1730 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1731 name, def, userHandle); 1732 } 1733 1734 String settingsSecureGetStringForUser(String name, int userHandle) { 1735 return Settings.Secure.getStringForUser(mContext.getContentResolver(), name, 1736 userHandle); 1737 } 1738 1739 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1740 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1741 name, value, userHandle); 1742 } 1743 1744 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1745 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1746 name, value, userHandle); 1747 } 1748 1749 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1750 Settings.Global.putStringForUser(mContext.getContentResolver(), 1751 name, value, userHandle); 1752 } 1753 1754 void settingsSecurePutInt(String name, int value) { 1755 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1756 } 1757 1758 int settingsGlobalGetInt(String name, int def) { 1759 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1760 } 1761 1762 void settingsGlobalPutInt(String name, int value) { 1763 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1764 } 1765 1766 void settingsSecurePutString(String name, String value) { 1767 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1768 } 1769 1770 void settingsGlobalPutString(String name, String value) { 1771 Settings.Global.putString(mContext.getContentResolver(), name, value); 1772 } 1773 1774 void securityLogSetLoggingEnabledProperty(boolean enabled) { 1775 SecurityLog.setLoggingEnabledProperty(enabled); 1776 } 1777 1778 boolean securityLogGetLoggingEnabledProperty() { 1779 return SecurityLog.getLoggingEnabledProperty(); 1780 } 1781 1782 boolean securityLogIsLoggingEnabled() { 1783 return SecurityLog.isLoggingEnabled(); 1784 } 1785 1786 KeyChainConnection keyChainBindAsUser(UserHandle user) throws InterruptedException { 1787 return KeyChain.bindAsUser(mContext, user); 1788 } 1789 } 1790 1791 /** 1792 * Instantiates the service. 1793 */ 1794 public DevicePolicyManagerService(Context context) { 1795 this(new Injector(context)); 1796 } 1797 1798 @VisibleForTesting 1799 DevicePolicyManagerService(Injector injector) { 1800 mInjector = injector; 1801 mContext = Preconditions.checkNotNull(injector.mContext); 1802 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1803 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1804 1805 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1806 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1807 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1808 mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager()); 1809 1810 mLocalService = new LocalService(); 1811 mLockPatternUtils = injector.newLockPatternUtils(); 1812 1813 mSecurityLogMonitor = new SecurityLogMonitor(this); 1814 1815 mHasFeature = mInjector.getPackageManager() 1816 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1817 mIsWatch = mInjector.getPackageManager() 1818 .hasSystemFeature(PackageManager.FEATURE_WATCH); 1819 mBackgroundHandler = BackgroundThread.getHandler(); 1820 1821 // Broadcast filter for changes to the trusted certificate store. These changes get a 1822 // separate intent filter so we can listen to them even when device_admin is off. 1823 IntentFilter filter = new IntentFilter(); 1824 filter.addAction(Intent.ACTION_USER_STARTED); 1825 filter.addAction(Intent.ACTION_USER_UNLOCKED); 1826 filter.addAction(KeyChain.ACTION_TRUST_STORE_CHANGED); 1827 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1828 mContext.registerReceiverAsUser(mRootCaReceiver, UserHandle.ALL, filter, null, mHandler); 1829 1830 if (!mHasFeature) { 1831 // Skip the rest of the initialization 1832 return; 1833 } 1834 1835 filter = new IntentFilter(); 1836 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1837 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1838 filter.addAction(Intent.ACTION_USER_ADDED); 1839 filter.addAction(Intent.ACTION_USER_REMOVED); 1840 filter.addAction(Intent.ACTION_USER_STARTED); 1841 filter.addAction(KeyChain.ACTION_TRUST_STORE_CHANGED); 1842 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1843 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1844 filter = new IntentFilter(); 1845 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1846 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1847 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1848 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1849 filter.addDataScheme("package"); 1850 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1851 filter = new IntentFilter(); 1852 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1853 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1854 1855 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1856 1857 mSetupContentObserver = new SetupContentObserver(mHandler); 1858 } 1859 1860 /** 1861 * Creates and loads the policy data from xml. 1862 * @param userHandle the user for whom to load the policy data 1863 * @return 1864 */ 1865 @NonNull 1866 DevicePolicyData getUserData(int userHandle) { 1867 synchronized (this) { 1868 DevicePolicyData policy = mUserData.get(userHandle); 1869 if (policy == null) { 1870 policy = new DevicePolicyData(userHandle); 1871 mUserData.append(userHandle, policy); 1872 loadSettingsLocked(policy, userHandle); 1873 } 1874 return policy; 1875 } 1876 } 1877 1878 /** 1879 * Creates and loads the policy data from xml for data that is shared between 1880 * various profiles of a user. In contrast to {@link #getUserData(int)} 1881 * it allows access to data of users other than the calling user. 1882 * 1883 * This function should only be used for shared data, e.g. everything regarding 1884 * passwords and should be removed once multiple screen locks are present. 1885 * @param userHandle the user for whom to load the policy data 1886 * @return 1887 */ 1888 DevicePolicyData getUserDataUnchecked(int userHandle) { 1889 long ident = mInjector.binderClearCallingIdentity(); 1890 try { 1891 return getUserData(userHandle); 1892 } finally { 1893 mInjector.binderRestoreCallingIdentity(ident); 1894 } 1895 } 1896 1897 void removeUserData(int userHandle) { 1898 synchronized (this) { 1899 if (userHandle == UserHandle.USER_SYSTEM) { 1900 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1901 return; 1902 } 1903 mOwners.removeProfileOwner(userHandle); 1904 mOwners.writeProfileOwner(userHandle); 1905 1906 DevicePolicyData policy = mUserData.get(userHandle); 1907 if (policy != null) { 1908 mUserData.remove(userHandle); 1909 } 1910 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1911 DEVICE_POLICIES_XML); 1912 policyFile.delete(); 1913 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1914 } 1915 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1916 } 1917 1918 void loadOwners() { 1919 synchronized (this) { 1920 mOwners.load(); 1921 setDeviceOwnerSystemPropertyLocked(); 1922 findOwnerComponentIfNecessaryLocked(); 1923 migrateUserRestrictionsIfNecessaryLocked(); 1924 setDefaultEnabledUserRestrictionsIfNecessaryLocked(); 1925 1926 // TODO PO may not have a class name either due to b/17652534. Address that too. 1927 1928 updateDeviceOwnerLocked(); 1929 } 1930 } 1931 1932 private void setDefaultEnabledUserRestrictionsIfNecessaryLocked() { 1933 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 1934 if (deviceOwner != null 1935 && !UserRestrictionsUtils.getDefaultEnabledForDeviceOwner().equals( 1936 deviceOwner.defaultEnabledRestrictionsAlreadySet)) { 1937 Slog.i(LOG_TAG,"New user restrictions need to be set by default for the device owner"); 1938 1939 if (VERBOSE_LOG) { 1940 Slog.d(LOG_TAG,"Default enabled restrictions for DO: " 1941 + UserRestrictionsUtils.getDefaultEnabledForDeviceOwner() 1942 + ". Restrictions already enabled: " 1943 + deviceOwner.defaultEnabledRestrictionsAlreadySet); 1944 } 1945 1946 Set<String> restrictionsToSet = new ArraySet<>( 1947 UserRestrictionsUtils.getDefaultEnabledForDeviceOwner()); 1948 restrictionsToSet.removeAll(deviceOwner.defaultEnabledRestrictionsAlreadySet); 1949 if (!restrictionsToSet.isEmpty()) { 1950 for (String restriction : restrictionsToSet) { 1951 deviceOwner.ensureUserRestrictions().putBoolean(restriction, true); 1952 } 1953 deviceOwner.defaultEnabledRestrictionsAlreadySet.addAll(restrictionsToSet); 1954 Slog.i(LOG_TAG, 1955 "Enabled the following restrictions by default: " + restrictionsToSet); 1956 1957 saveUserRestrictionsLocked(mOwners.getDeviceOwnerUserId()); 1958 } 1959 } 1960 } 1961 1962 private void setDeviceOwnerSystemPropertyLocked() { 1963 final boolean deviceProvisioned = 1964 mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0; 1965 // If the device is not provisioned and there is currently no device owner, do not set the 1966 // read-only system property yet, since Device owner may still be provisioned. For Wear 1967 // devices, if there is already a device owner then it's OK to set the property to true now, 1968 // regardless the provision state. 1969 final boolean isWatchWithDeviceOwner = mIsWatch && mOwners.hasDeviceOwner(); 1970 if (!isWatchWithDeviceOwner && !deviceProvisioned) { 1971 return; 1972 } 1973 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 1974 // always false at this point. 1975 if (StorageManager.inCryptKeeperBounce()) { 1976 return; 1977 } 1978 1979 if (!TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT))) { 1980 Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 1981 } else { 1982 if (mOwners.hasDeviceOwner()) { 1983 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "true"); 1984 Slog.i(LOG_TAG, "Set ro.device_owner property to true"); 1985 1986 if (mInjector.securityLogGetLoggingEnabledProperty()) { 1987 mSecurityLogMonitor.start(); 1988 maybePauseDeviceWideLoggingLocked(); 1989 } 1990 } else { 1991 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "false"); 1992 Slog.i(LOG_TAG, "Set ro.device_owner property to false"); 1993 } 1994 } 1995 } 1996 1997 private void findOwnerComponentIfNecessaryLocked() { 1998 if (!mOwners.hasDeviceOwner()) { 1999 return; 2000 } 2001 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 2002 2003 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 2004 return; // Already a full component name. 2005 } 2006 2007 final ComponentName doComponent = findAdminComponentWithPackageLocked( 2008 doComponentName.getPackageName(), 2009 mOwners.getDeviceOwnerUserId()); 2010 if (doComponent == null) { 2011 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 2012 } else { 2013 mOwners.setDeviceOwnerWithRestrictionsMigrated( 2014 doComponent, 2015 mOwners.getDeviceOwnerName(), 2016 mOwners.getDeviceOwnerUserId(), 2017 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 2018 mOwners.writeDeviceOwner(); 2019 if (VERBOSE_LOG) { 2020 Log.v(LOG_TAG, "Device owner component filled in"); 2021 } 2022 } 2023 } 2024 2025 /** 2026 * We didn't use to persist user restrictions for each owners but only persisted in user 2027 * manager. 2028 */ 2029 private void migrateUserRestrictionsIfNecessaryLocked() { 2030 boolean migrated = false; 2031 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 2032 // except for the "system controlled" ones. 2033 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 2034 if (VERBOSE_LOG) { 2035 Log.v(LOG_TAG, "Migrating DO user restrictions"); 2036 } 2037 migrated = true; 2038 2039 // Migrate user 0 restrictions to DO. 2040 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 2041 2042 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 2043 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 2044 2045 // Push DO user restrictions to user manager. 2046 pushUserRestrictions(UserHandle.USER_SYSTEM); 2047 2048 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 2049 } 2050 2051 // Migrate for POs. 2052 2053 // The following restrictions can be set on secondary users by the device owner, so we 2054 // assume they're not from the PO. 2055 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 2056 UserManager.DISALLOW_OUTGOING_CALLS, 2057 UserManager.DISALLOW_SMS); 2058 2059 for (UserInfo ui : mUserManager.getUsers()) { 2060 final int userId = ui.id; 2061 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 2062 if (VERBOSE_LOG) { 2063 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 2064 } 2065 migrated = true; 2066 2067 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 2068 2069 final Set<String> exceptionList = 2070 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 2071 2072 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 2073 exceptionList, /* isDeviceOwner =*/ false); 2074 2075 // Note if a secondary user has no PO but has a DA that disables camera, we 2076 // don't get here and won't push the camera user restriction to UserManager 2077 // here. That's okay because we'll push user restrictions anyway when a user 2078 // starts. But we still do it because we want to let user manager persist 2079 // upon migration. 2080 pushUserRestrictions(userId); 2081 2082 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 2083 } 2084 } 2085 if (VERBOSE_LOG && migrated) { 2086 Log.v(LOG_TAG, "User restrictions migrated."); 2087 } 2088 } 2089 2090 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 2091 Set<String> exceptionList, boolean isDeviceOwner) { 2092 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 2093 user.getIdentifier()); 2094 2095 final Bundle newBaseRestrictions = new Bundle(); 2096 final Bundle newOwnerRestrictions = new Bundle(); 2097 2098 for (String key : origRestrictions.keySet()) { 2099 if (!origRestrictions.getBoolean(key)) { 2100 continue; 2101 } 2102 final boolean canOwnerChange = isDeviceOwner 2103 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 2104 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 2105 2106 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 2107 newBaseRestrictions.putBoolean(key, true); 2108 } else { 2109 newOwnerRestrictions.putBoolean(key, true); 2110 } 2111 } 2112 2113 if (VERBOSE_LOG) { 2114 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 2115 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 2116 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 2117 } 2118 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 2119 newBaseRestrictions); 2120 2121 if (admin != null) { 2122 admin.ensureUserRestrictions().clear(); 2123 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 2124 } else { 2125 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 2126 } 2127 saveSettingsLocked(user.getIdentifier()); 2128 } 2129 2130 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 2131 final DevicePolicyData policy = getUserData(userId); 2132 final int n = policy.mAdminList.size(); 2133 ComponentName found = null; 2134 int nFound = 0; 2135 for (int i = 0; i < n; i++) { 2136 final ActiveAdmin admin = policy.mAdminList.get(i); 2137 if (packageName.equals(admin.info.getPackageName())) { 2138 // Found! 2139 if (nFound == 0) { 2140 found = admin.info.getComponent(); 2141 } 2142 nFound++; 2143 } 2144 } 2145 if (nFound > 1) { 2146 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 2147 } 2148 return found; 2149 } 2150 2151 /** 2152 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 2153 * reminders. Clears alarm if no expirations are configured. 2154 */ 2155 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 2156 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 2157 final long now = System.currentTimeMillis(); 2158 final long timeToExpire = expiration - now; 2159 final long alarmTime; 2160 if (expiration == 0) { 2161 // No expirations are currently configured: Cancel alarm. 2162 alarmTime = 0; 2163 } else if (timeToExpire <= 0) { 2164 // The password has already expired: Repeat every 24 hours. 2165 alarmTime = now + MS_PER_DAY; 2166 } else { 2167 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 2168 // the expiration time. 2169 long alarmInterval = timeToExpire % MS_PER_DAY; 2170 if (alarmInterval == 0) { 2171 alarmInterval = MS_PER_DAY; 2172 } 2173 alarmTime = now + alarmInterval; 2174 } 2175 2176 long token = mInjector.binderClearCallingIdentity(); 2177 try { 2178 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 2179 AlarmManager am = mInjector.getAlarmManager(); 2180 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 2181 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 2182 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 2183 UserHandle.of(affectedUserHandle)); 2184 am.cancel(pi); 2185 if (alarmTime != 0) { 2186 am.set(AlarmManager.RTC, alarmTime, pi); 2187 } 2188 } finally { 2189 mInjector.binderRestoreCallingIdentity(token); 2190 } 2191 } 2192 2193 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 2194 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 2195 if (admin != null 2196 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 2197 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 2198 return admin; 2199 } 2200 return null; 2201 } 2202 2203 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 2204 if (parent) { 2205 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 2206 } 2207 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2208 if (admin != null && parent) { 2209 admin = admin.getParentActiveAdmin(); 2210 } 2211 return admin; 2212 } 2213 2214 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 2215 throws SecurityException { 2216 final int callingUid = mInjector.binderGetCallingUid(); 2217 2218 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 2219 if (result != null) { 2220 return result; 2221 } 2222 2223 if (who != null) { 2224 final int userId = UserHandle.getUserId(callingUid); 2225 final DevicePolicyData policy = getUserData(userId); 2226 ActiveAdmin admin = policy.mAdminMap.get(who); 2227 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2228 throw new SecurityException("Admin " + admin.info.getComponent() 2229 + " does not own the device"); 2230 } 2231 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2232 throw new SecurityException("Admin " + admin.info.getComponent() 2233 + " does not own the profile"); 2234 } 2235 throw new SecurityException("Admin " + admin.info.getComponent() 2236 + " did not specify uses-policy for: " 2237 + admin.info.getTagForPolicy(reqPolicy)); 2238 } else { 2239 throw new SecurityException("No active admin owned by uid " 2240 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 2241 } 2242 } 2243 2244 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 2245 throws SecurityException { 2246 if (parent) { 2247 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 2248 "call APIs on the parent profile"); 2249 } 2250 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 2251 return parent ? admin.getParentActiveAdmin() : admin; 2252 } 2253 /** 2254 * Find the admin for the component and userId bit of the uid, then check 2255 * the admin's uid matches the uid. 2256 */ 2257 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 2258 final int userId = UserHandle.getUserId(uid); 2259 final DevicePolicyData policy = getUserData(userId); 2260 ActiveAdmin admin = policy.mAdminMap.get(who); 2261 if (admin == null) { 2262 throw new SecurityException("No active admin " + who); 2263 } 2264 if (admin.getUid() != uid) { 2265 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2266 } 2267 return admin; 2268 } 2269 2270 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 2271 int uid) { 2272 // Try to find an admin which can use reqPolicy 2273 final int userId = UserHandle.getUserId(uid); 2274 final DevicePolicyData policy = getUserData(userId); 2275 if (who != null) { 2276 ActiveAdmin admin = policy.mAdminMap.get(who); 2277 if (admin == null) { 2278 throw new SecurityException("No active admin " + who); 2279 } 2280 if (admin.getUid() != uid) { 2281 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2282 } 2283 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 2284 return admin; 2285 } 2286 } else { 2287 for (ActiveAdmin admin : policy.mAdminList) { 2288 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 2289 userId)) { 2290 return admin; 2291 } 2292 } 2293 } 2294 2295 return null; 2296 } 2297 2298 @VisibleForTesting 2299 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 2300 int userId) { 2301 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 2302 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 2303 2304 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2305 return ownsDevice; 2306 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2307 // DO always has the PO power. 2308 return ownsDevice || ownsProfile; 2309 } else { 2310 return admin.info.usesPolicy(reqPolicy); 2311 } 2312 } 2313 2314 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 2315 sendAdminCommandLocked(admin, action, null); 2316 } 2317 2318 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 2319 sendAdminCommandLocked(admin, action, null, result); 2320 } 2321 2322 /** 2323 * Send an update to one specific admin, get notified when that admin returns a result. 2324 */ 2325 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2326 BroadcastReceiver result) { 2327 Intent intent = new Intent(action); 2328 intent.setComponent(admin.info.getComponent()); 2329 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 2330 intent.putExtra("expiration", admin.passwordExpirationDate); 2331 } 2332 if (adminExtras != null) { 2333 intent.putExtras(adminExtras); 2334 } 2335 if (result != null) { 2336 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 2337 null, result, mHandler, Activity.RESULT_OK, null, null); 2338 } else { 2339 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 2340 } 2341 } 2342 2343 /** 2344 * Send an update to all admins of a user that enforce a specified policy. 2345 */ 2346 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle, Bundle adminExtras) { 2347 final DevicePolicyData policy = getUserData(userHandle); 2348 final int count = policy.mAdminList.size(); 2349 for (int i = 0; i < count; i++) { 2350 final ActiveAdmin admin = policy.mAdminList.get(i); 2351 if (admin.info.usesPolicy(reqPolicy)) { 2352 sendAdminCommandLocked(admin, action, adminExtras, null); 2353 } 2354 } 2355 } 2356 2357 /** 2358 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2359 * enforce a specified policy. 2360 */ 2361 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2362 int userHandle, Bundle adminExtras) { 2363 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 2364 for (int profileId : profileIds) { 2365 sendAdminCommandLocked(action, reqPolicy, profileId, adminExtras); 2366 } 2367 } 2368 2369 /** 2370 * Sends a broadcast to each profile that share the password unlock with the given user id. 2371 */ 2372 private void sendAdminCommandForLockscreenPoliciesLocked( 2373 String action, int reqPolicy, int userHandle) { 2374 final Bundle extras = new Bundle(); 2375 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 2376 if (isSeparateProfileChallengeEnabled(userHandle)) { 2377 sendAdminCommandLocked(action, reqPolicy, userHandle, extras); 2378 } else { 2379 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle, extras); 2380 } 2381 } 2382 2383 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2384 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2385 DevicePolicyData policy = getUserData(userHandle); 2386 if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) { 2387 policy.mRemovingAdmins.add(adminReceiver); 2388 sendAdminCommandLocked(admin, 2389 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2390 new BroadcastReceiver() { 2391 @Override 2392 public void onReceive(Context context, Intent intent) { 2393 removeAdminArtifacts(adminReceiver, userHandle); 2394 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2395 } 2396 }); 2397 } 2398 } 2399 2400 2401 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2402 boolean throwForMissiongPermission) { 2403 if (!mHasFeature) { 2404 return null; 2405 } 2406 enforceFullCrossUsersPermission(userHandle); 2407 ActivityInfo ai = null; 2408 try { 2409 ai = mIPackageManager.getReceiverInfo(adminName, 2410 PackageManager.GET_META_DATA | 2411 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS | 2412 PackageManager.MATCH_DIRECT_BOOT_AWARE | 2413 PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle); 2414 } catch (RemoteException e) { 2415 // shouldn't happen. 2416 } 2417 if (ai == null) { 2418 throw new IllegalArgumentException("Unknown admin: " + adminName); 2419 } 2420 2421 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2422 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2423 + permission.BIND_DEVICE_ADMIN; 2424 Slog.w(LOG_TAG, message); 2425 if (throwForMissiongPermission && 2426 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2427 throw new IllegalArgumentException(message); 2428 } 2429 } 2430 2431 try { 2432 return new DeviceAdminInfo(mContext, ai); 2433 } catch (XmlPullParserException | IOException e) { 2434 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2435 e); 2436 return null; 2437 } 2438 } 2439 2440 private JournaledFile makeJournaledFile(int userHandle) { 2441 final String base = userHandle == UserHandle.USER_SYSTEM 2442 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 2443 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2444 DEVICE_POLICIES_XML).getAbsolutePath(); 2445 if (VERBOSE_LOG) { 2446 Log.v(LOG_TAG, "Opening " + base); 2447 } 2448 return new JournaledFile(new File(base), new File(base + ".tmp")); 2449 } 2450 2451 private void saveSettingsLocked(int userHandle) { 2452 DevicePolicyData policy = getUserData(userHandle); 2453 JournaledFile journal = makeJournaledFile(userHandle); 2454 FileOutputStream stream = null; 2455 try { 2456 stream = new FileOutputStream(journal.chooseForWrite(), false); 2457 XmlSerializer out = new FastXmlSerializer(); 2458 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2459 out.startDocument(null, true); 2460 2461 out.startTag(null, "policies"); 2462 if (policy.mRestrictionsProvider != null) { 2463 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2464 policy.mRestrictionsProvider.flattenToString()); 2465 } 2466 if (policy.mUserSetupComplete) { 2467 out.attribute(null, ATTR_SETUP_COMPLETE, 2468 Boolean.toString(true)); 2469 } 2470 if (policy.mPaired) { 2471 out.attribute(null, ATTR_DEVICE_PAIRED, 2472 Boolean.toString(true)); 2473 } 2474 if (policy.mDeviceProvisioningConfigApplied) { 2475 out.attribute(null, ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED, 2476 Boolean.toString(true)); 2477 } 2478 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2479 out.attribute(null, ATTR_PROVISIONING_STATE, 2480 Integer.toString(policy.mUserProvisioningState)); 2481 } 2482 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2483 out.attribute(null, ATTR_PERMISSION_POLICY, 2484 Integer.toString(policy.mPermissionPolicy)); 2485 } 2486 2487 // Serialize delegations. 2488 for (int i = 0; i < policy.mDelegationMap.size(); ++i) { 2489 final String delegatePackage = policy.mDelegationMap.keyAt(i); 2490 final List<String> scopes = policy.mDelegationMap.valueAt(i); 2491 2492 // Every "delegation" tag serializes the information of one delegate-scope pair. 2493 for (String scope : scopes) { 2494 out.startTag(null, "delegation"); 2495 out.attribute(null, "delegatePackage", delegatePackage); 2496 out.attribute(null, "scope", scope); 2497 out.endTag(null, "delegation"); 2498 } 2499 } 2500 2501 final int N = policy.mAdminList.size(); 2502 for (int i=0; i<N; i++) { 2503 ActiveAdmin ap = policy.mAdminList.get(i); 2504 if (ap != null) { 2505 out.startTag(null, "admin"); 2506 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2507 ap.writeToXml(out); 2508 out.endTag(null, "admin"); 2509 } 2510 } 2511 2512 if (policy.mPasswordOwner >= 0) { 2513 out.startTag(null, "password-owner"); 2514 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2515 out.endTag(null, "password-owner"); 2516 } 2517 2518 if (policy.mFailedPasswordAttempts != 0) { 2519 out.startTag(null, "failed-password-attempts"); 2520 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2521 out.endTag(null, "failed-password-attempts"); 2522 } 2523 2524 // Don't save metrics for FBE devices 2525 final PasswordMetrics metrics = policy.mActivePasswordMetrics; 2526 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled() && !metrics.isDefault()) { 2527 out.startTag(null, "active-password"); 2528 out.attribute(null, "quality", Integer.toString(metrics.quality)); 2529 out.attribute(null, "length", Integer.toString(metrics.length)); 2530 out.attribute(null, "uppercase", Integer.toString(metrics.upperCase)); 2531 out.attribute(null, "lowercase", Integer.toString(metrics.lowerCase)); 2532 out.attribute(null, "letters", Integer.toString(metrics.letters)); 2533 out.attribute(null, "numeric", Integer.toString(metrics.numeric)); 2534 out.attribute(null, "symbols", Integer.toString(metrics.symbols)); 2535 out.attribute(null, "nonletter", Integer.toString(metrics.nonLetter)); 2536 out.endTag(null, "active-password"); 2537 } 2538 2539 for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) { 2540 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2541 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i)); 2542 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2543 } 2544 2545 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2546 String component = policy.mLockTaskPackages.get(i); 2547 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2548 out.attribute(null, "name", component); 2549 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2550 } 2551 2552 if (policy.mStatusBarDisabled) { 2553 out.startTag(null, TAG_STATUS_BAR); 2554 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2555 out.endTag(null, TAG_STATUS_BAR); 2556 } 2557 2558 if (policy.doNotAskCredentialsOnBoot) { 2559 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2560 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2561 } 2562 2563 for (String id : policy.mAffiliationIds) { 2564 out.startTag(null, TAG_AFFILIATION_ID); 2565 out.attribute(null, ATTR_ID, id); 2566 out.endTag(null, TAG_AFFILIATION_ID); 2567 } 2568 2569 if (policy.mLastSecurityLogRetrievalTime >= 0) { 2570 out.startTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2571 out.attribute(null, ATTR_VALUE, 2572 Long.toString(policy.mLastSecurityLogRetrievalTime)); 2573 out.endTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2574 } 2575 2576 if (policy.mLastBugReportRequestTime >= 0) { 2577 out.startTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2578 out.attribute(null, ATTR_VALUE, 2579 Long.toString(policy.mLastBugReportRequestTime)); 2580 out.endTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2581 } 2582 2583 if (policy.mLastNetworkLogsRetrievalTime >= 0) { 2584 out.startTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2585 out.attribute(null, ATTR_VALUE, 2586 Long.toString(policy.mLastNetworkLogsRetrievalTime)); 2587 out.endTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2588 } 2589 2590 if (policy.mAdminBroadcastPending) { 2591 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2592 out.attribute(null, ATTR_VALUE, 2593 Boolean.toString(policy.mAdminBroadcastPending)); 2594 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2595 } 2596 2597 if (policy.mInitBundle != null) { 2598 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 2599 policy.mInitBundle.saveToXml(out); 2600 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 2601 } 2602 2603 if (policy.mPasswordTokenHandle != 0) { 2604 out.startTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2605 out.attribute(null, ATTR_VALUE, 2606 Long.toString(policy.mPasswordTokenHandle)); 2607 out.endTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2608 } 2609 2610 if (policy.mDefaultInputMethodSet) { 2611 out.startTag(null, TAG_DEFAULT_INPUT_METHOD_SET); 2612 out.endTag(null, TAG_DEFAULT_INPUT_METHOD_SET); 2613 } 2614 2615 for (final String cert : policy.mOwnerInstalledCaCerts) { 2616 out.startTag(null, TAG_OWNER_INSTALLED_CA_CERT); 2617 out.attribute(null, ATTR_ALIAS, cert); 2618 out.endTag(null, TAG_OWNER_INSTALLED_CA_CERT); 2619 } 2620 2621 out.endTag(null, "policies"); 2622 2623 out.endDocument(); 2624 stream.flush(); 2625 FileUtils.sync(stream); 2626 stream.close(); 2627 journal.commit(); 2628 sendChangedNotification(userHandle); 2629 } catch (XmlPullParserException | IOException e) { 2630 Slog.w(LOG_TAG, "failed writing file", e); 2631 try { 2632 if (stream != null) { 2633 stream.close(); 2634 } 2635 } catch (IOException ex) { 2636 // Ignore 2637 } 2638 journal.rollback(); 2639 } 2640 } 2641 2642 private void sendChangedNotification(int userHandle) { 2643 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 2644 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2645 long ident = mInjector.binderClearCallingIdentity(); 2646 try { 2647 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 2648 } finally { 2649 mInjector.binderRestoreCallingIdentity(ident); 2650 } 2651 } 2652 2653 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 2654 JournaledFile journal = makeJournaledFile(userHandle); 2655 FileInputStream stream = null; 2656 File file = journal.chooseForRead(); 2657 boolean needsRewrite = false; 2658 try { 2659 stream = new FileInputStream(file); 2660 XmlPullParser parser = Xml.newPullParser(); 2661 parser.setInput(stream, StandardCharsets.UTF_8.name()); 2662 2663 int type; 2664 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2665 && type != XmlPullParser.START_TAG) { 2666 } 2667 String tag = parser.getName(); 2668 if (!"policies".equals(tag)) { 2669 throw new XmlPullParserException( 2670 "Settings do not start with policies tag: found " + tag); 2671 } 2672 2673 // Extract the permission provider component name if available 2674 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 2675 if (permissionProvider != null) { 2676 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 2677 } 2678 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 2679 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 2680 policy.mUserSetupComplete = true; 2681 } 2682 String paired = parser.getAttributeValue(null, ATTR_DEVICE_PAIRED); 2683 if (paired != null && Boolean.toString(true).equals(paired)) { 2684 policy.mPaired = true; 2685 } 2686 String deviceProvisioningConfigApplied = parser.getAttributeValue(null, 2687 ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED); 2688 if (deviceProvisioningConfigApplied != null 2689 && Boolean.toString(true).equals(deviceProvisioningConfigApplied)) { 2690 policy.mDeviceProvisioningConfigApplied = true; 2691 } 2692 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 2693 if (!TextUtils.isEmpty(provisioningState)) { 2694 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 2695 } 2696 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 2697 if (!TextUtils.isEmpty(permissionPolicy)) { 2698 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 2699 } 2700 // Check for delegation compatibility with pre-O. 2701 // TODO(edmanp) remove in P. 2702 { 2703 final String certDelegate = parser.getAttributeValue(null, 2704 ATTR_DELEGATED_CERT_INSTALLER); 2705 if (certDelegate != null) { 2706 List<String> scopes = policy.mDelegationMap.get(certDelegate); 2707 if (scopes == null) { 2708 scopes = new ArrayList<>(); 2709 policy.mDelegationMap.put(certDelegate, scopes); 2710 } 2711 if (!scopes.contains(DELEGATION_CERT_INSTALL)) { 2712 scopes.add(DELEGATION_CERT_INSTALL); 2713 needsRewrite = true; 2714 } 2715 } 2716 final String appRestrictionsDelegate = parser.getAttributeValue(null, 2717 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 2718 if (appRestrictionsDelegate != null) { 2719 List<String> scopes = policy.mDelegationMap.get(appRestrictionsDelegate); 2720 if (scopes == null) { 2721 scopes = new ArrayList<>(); 2722 policy.mDelegationMap.put(appRestrictionsDelegate, scopes); 2723 } 2724 if (!scopes.contains(DELEGATION_APP_RESTRICTIONS)) { 2725 scopes.add(DELEGATION_APP_RESTRICTIONS); 2726 needsRewrite = true; 2727 } 2728 } 2729 } 2730 2731 type = parser.next(); 2732 int outerDepth = parser.getDepth(); 2733 policy.mLockTaskPackages.clear(); 2734 policy.mAdminList.clear(); 2735 policy.mAdminMap.clear(); 2736 policy.mAffiliationIds.clear(); 2737 policy.mOwnerInstalledCaCerts.clear(); 2738 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2739 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2740 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2741 continue; 2742 } 2743 tag = parser.getName(); 2744 if ("admin".equals(tag)) { 2745 String name = parser.getAttributeValue(null, "name"); 2746 try { 2747 DeviceAdminInfo dai = findAdmin( 2748 ComponentName.unflattenFromString(name), userHandle, 2749 /* throwForMissionPermission= */ false); 2750 if (VERBOSE_LOG 2751 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 2752 != userHandle)) { 2753 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 2754 + dai.getActivityInfo().applicationInfo.uid + " for user " 2755 + userHandle); 2756 } 2757 if (dai != null) { 2758 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 2759 ap.readFromXml(parser); 2760 policy.mAdminMap.put(ap.info.getComponent(), ap); 2761 } 2762 } catch (RuntimeException e) { 2763 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 2764 } 2765 } else if ("delegation".equals(tag)) { 2766 // Parse delegation info. 2767 final String delegatePackage = parser.getAttributeValue(null, 2768 "delegatePackage"); 2769 final String scope = parser.getAttributeValue(null, "scope"); 2770 2771 // Get a reference to the scopes list for the delegatePackage. 2772 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 2773 // Or make a new list if none was found. 2774 if (scopes == null) { 2775 scopes = new ArrayList<>(); 2776 policy.mDelegationMap.put(delegatePackage, scopes); 2777 } 2778 // Add the new scope to the list of delegatePackage if it's not already there. 2779 if (!scopes.contains(scope)) { 2780 scopes.add(scope); 2781 } 2782 } else if ("failed-password-attempts".equals(tag)) { 2783 policy.mFailedPasswordAttempts = Integer.parseInt( 2784 parser.getAttributeValue(null, "value")); 2785 } else if ("password-owner".equals(tag)) { 2786 policy.mPasswordOwner = Integer.parseInt( 2787 parser.getAttributeValue(null, "value")); 2788 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) { 2789 policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME)); 2790 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2791 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2792 } else if (TAG_STATUS_BAR.equals(tag)) { 2793 policy.mStatusBarDisabled = Boolean.parseBoolean( 2794 parser.getAttributeValue(null, ATTR_DISABLED)); 2795 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2796 policy.doNotAskCredentialsOnBoot = true; 2797 } else if (TAG_AFFILIATION_ID.equals(tag)) { 2798 policy.mAffiliationIds.add(parser.getAttributeValue(null, ATTR_ID)); 2799 } else if (TAG_LAST_SECURITY_LOG_RETRIEVAL.equals(tag)) { 2800 policy.mLastSecurityLogRetrievalTime = Long.parseLong( 2801 parser.getAttributeValue(null, ATTR_VALUE)); 2802 } else if (TAG_LAST_BUG_REPORT_REQUEST.equals(tag)) { 2803 policy.mLastBugReportRequestTime = Long.parseLong( 2804 parser.getAttributeValue(null, ATTR_VALUE)); 2805 } else if (TAG_LAST_NETWORK_LOG_RETRIEVAL.equals(tag)) { 2806 policy.mLastNetworkLogsRetrievalTime = Long.parseLong( 2807 parser.getAttributeValue(null, ATTR_VALUE)); 2808 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 2809 String pending = parser.getAttributeValue(null, ATTR_VALUE); 2810 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 2811 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 2812 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 2813 } else if ("active-password".equals(tag)) { 2814 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 2815 // Remove this from FBE devices 2816 needsRewrite = true; 2817 } else { 2818 final PasswordMetrics m = policy.mActivePasswordMetrics; 2819 m.quality = Integer.parseInt(parser.getAttributeValue(null, "quality")); 2820 m.length = Integer.parseInt(parser.getAttributeValue(null, "length")); 2821 m.upperCase = Integer.parseInt(parser.getAttributeValue(null, "uppercase")); 2822 m.lowerCase = Integer.parseInt(parser.getAttributeValue(null, "lowercase")); 2823 m.letters = Integer.parseInt(parser.getAttributeValue(null, "letters")); 2824 m.numeric = Integer.parseInt(parser.getAttributeValue(null, "numeric")); 2825 m.symbols = Integer.parseInt(parser.getAttributeValue(null, "symbols")); 2826 m.nonLetter = Integer.parseInt(parser.getAttributeValue(null, "nonletter")); 2827 } 2828 } else if (TAG_PASSWORD_TOKEN_HANDLE.equals(tag)) { 2829 policy.mPasswordTokenHandle = Long.parseLong( 2830 parser.getAttributeValue(null, ATTR_VALUE)); 2831 } else if (TAG_DEFAULT_INPUT_METHOD_SET.equals(tag)) { 2832 policy.mDefaultInputMethodSet = true; 2833 } else if (TAG_OWNER_INSTALLED_CA_CERT.equals(tag)) { 2834 policy.mOwnerInstalledCaCerts.add(parser.getAttributeValue(null, ATTR_ALIAS)); 2835 } else { 2836 Slog.w(LOG_TAG, "Unknown tag: " + tag); 2837 XmlUtils.skipCurrentTag(parser); 2838 } 2839 } 2840 } catch (FileNotFoundException e) { 2841 // Don't be noisy, this is normal if we haven't defined any policies. 2842 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 2843 | IndexOutOfBoundsException e) { 2844 Slog.w(LOG_TAG, "failed parsing " + file, e); 2845 } 2846 try { 2847 if (stream != null) { 2848 stream.close(); 2849 } 2850 } catch (IOException e) { 2851 // Ignore 2852 } 2853 2854 // Generate a list of admins from the admin map 2855 policy.mAdminList.addAll(policy.mAdminMap.values()); 2856 2857 // Might need to upgrade the file by rewriting it 2858 if (needsRewrite) { 2859 saveSettingsLocked(userHandle); 2860 } 2861 2862 validatePasswordOwnerLocked(policy); 2863 updateMaximumTimeToLockLocked(userHandle); 2864 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2865 if (policy.mStatusBarDisabled) { 2866 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2867 } 2868 } 2869 2870 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2871 long ident = mInjector.binderClearCallingIdentity(); 2872 try { 2873 mInjector.getIActivityManager() 2874 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2875 } catch (RemoteException e) { 2876 // Not gonna happen. 2877 } finally { 2878 mInjector.binderRestoreCallingIdentity(ident); 2879 } 2880 } 2881 2882 private void updateDeviceOwnerLocked() { 2883 long ident = mInjector.binderClearCallingIdentity(); 2884 try { 2885 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2886 // user id and also protect all other DAs too. 2887 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2888 if (deviceOwnerComponent != null) { 2889 mInjector.getIActivityManager() 2890 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2891 } 2892 } catch (RemoteException e) { 2893 // Not gonna happen. 2894 } finally { 2895 mInjector.binderRestoreCallingIdentity(ident); 2896 } 2897 } 2898 2899 static void validateQualityConstant(int quality) { 2900 switch (quality) { 2901 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2902 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2903 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2904 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2905 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2906 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2907 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2908 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2909 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 2910 return; 2911 } 2912 throw new IllegalArgumentException("Invalid quality constant: 0x" 2913 + Integer.toHexString(quality)); 2914 } 2915 2916 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2917 if (policy.mPasswordOwner >= 0) { 2918 boolean haveOwner = false; 2919 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2920 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2921 haveOwner = true; 2922 break; 2923 } 2924 } 2925 if (!haveOwner) { 2926 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2927 + " no longer active; disabling"); 2928 policy.mPasswordOwner = -1; 2929 } 2930 } 2931 } 2932 2933 @VisibleForTesting 2934 void systemReady(int phase) { 2935 if (!mHasFeature) { 2936 return; 2937 } 2938 switch (phase) { 2939 case SystemService.PHASE_LOCK_SETTINGS_READY: 2940 onLockSettingsReady(); 2941 break; 2942 case SystemService.PHASE_BOOT_COMPLETED: 2943 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2944 break; 2945 } 2946 } 2947 2948 private void ensureUnknownSourcesRestrictionForProfileOwners() { 2949 synchronized (this) { 2950 for (int userId : mOwners.getProfileOwnerKeys()) { 2951 if (!mUserManager.isManagedProfile(userId) || 2952 mInjector.settingsSecureGetIntForUser( 2953 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId) == 0) { 2954 continue; 2955 } 2956 setUserRestrictionOnBehalfOfProfileOwnerLocked( 2957 UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, userId); 2958 mInjector.settingsSecurePutIntForUser( 2959 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId); 2960 } 2961 } 2962 } 2963 2964 private void setUserRestrictionOnBehalfOfProfileOwnerLocked(String userRestrictionKey, 2965 int userId) { 2966 if (UserRestrictionsUtils.isValidRestriction(userRestrictionKey) && 2967 UserRestrictionsUtils.canProfileOwnerChange(userRestrictionKey, userId)) { 2968 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 2969 if (profileOwner == null) { 2970 return; 2971 } 2972 Bundle restrictions = profileOwner.ensureUserRestrictions(); 2973 restrictions.putBoolean(userRestrictionKey, true); 2974 saveUserRestrictionsLocked(userId); 2975 } 2976 } 2977 2978 private void onLockSettingsReady() { 2979 getUserData(UserHandle.USER_SYSTEM); 2980 loadOwners(); 2981 cleanUpOldUsers(); 2982 ensureUnknownSourcesRestrictionForProfileOwners(); 2983 onStartUser(UserHandle.USER_SYSTEM); 2984 2985 // Register an observer for watching for user setup complete and settings changes. 2986 mSetupContentObserver.register(); 2987 // Initialize the user setup state, to handle the upgrade case. 2988 updateUserSetupCompleteAndPaired(); 2989 2990 List<String> packageList; 2991 synchronized (this) { 2992 packageList = getKeepUninstalledPackagesLocked(); 2993 } 2994 if (packageList != null) { 2995 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 2996 } 2997 2998 synchronized (this) { 2999 // push the force-ephemeral-users policy to the user manager. 3000 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 3001 if (deviceOwner != null) { 3002 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 3003 } 3004 } 3005 } 3006 3007 private void ensureDeviceOwnerUserStarted() { 3008 final int userId; 3009 synchronized (this) { 3010 if (!mOwners.hasDeviceOwner()) { 3011 return; 3012 } 3013 userId = mOwners.getDeviceOwnerUserId(); 3014 } 3015 if (VERBOSE_LOG) { 3016 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 3017 } 3018 if (userId != UserHandle.USER_SYSTEM) { 3019 try { 3020 mInjector.getIActivityManager().startUserInBackground(userId); 3021 3022 // STOPSHIP Prevent the DO user from being killed. 3023 3024 } catch (RemoteException e) { 3025 Slog.w(LOG_TAG, "Exception starting user", e); 3026 } 3027 } 3028 } 3029 3030 private void onStartUser(int userId) { 3031 updateScreenCaptureDisabledInWindowManager(userId, 3032 getScreenCaptureDisabled(null, userId)); 3033 pushUserRestrictions(userId); 3034 } 3035 3036 private void cleanUpOldUsers() { 3037 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 3038 // before reboot 3039 Set<Integer> usersWithProfileOwners; 3040 Set<Integer> usersWithData; 3041 synchronized(this) { 3042 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 3043 usersWithData = new ArraySet<>(); 3044 for (int i = 0; i < mUserData.size(); i++) { 3045 usersWithData.add(mUserData.keyAt(i)); 3046 } 3047 } 3048 List<UserInfo> allUsers = mUserManager.getUsers(); 3049 3050 Set<Integer> deletedUsers = new ArraySet<>(); 3051 deletedUsers.addAll(usersWithProfileOwners); 3052 deletedUsers.addAll(usersWithData); 3053 for (UserInfo userInfo : allUsers) { 3054 deletedUsers.remove(userInfo.id); 3055 } 3056 for (Integer userId : deletedUsers) { 3057 removeUserData(userId); 3058 } 3059 } 3060 3061 private void handlePasswordExpirationNotification(int userHandle) { 3062 final Bundle adminExtras = new Bundle(); 3063 adminExtras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 3064 3065 synchronized (this) { 3066 final long now = System.currentTimeMillis(); 3067 3068 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 3069 userHandle, /* parent */ false); 3070 final int N = admins.size(); 3071 for (int i = 0; i < N; i++) { 3072 ActiveAdmin admin = admins.get(i); 3073 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 3074 && admin.passwordExpirationTimeout > 0L 3075 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 3076 && admin.passwordExpirationDate > 0L) { 3077 sendAdminCommandLocked(admin, 3078 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING, adminExtras, null); 3079 } 3080 } 3081 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 3082 } 3083 } 3084 3085 /** 3086 * Remove deleted CA certificates from the "approved" list for a particular user, counting 3087 * the number still remaining to approve. 3088 * 3089 * @param userHandle user to check for. This must be a real user and not, for example, 3090 * {@link UserHandle#ALL}. 3091 * @param installedCertificates the full set of certificate authorities currently installed for 3092 * {@param userHandle}. After calling this function, {@code mAcceptedCaCertificates} will 3093 * correspond to some subset of this. 3094 * 3095 * @return number of certificates yet to be approved by {@param userHandle}. 3096 */ 3097 protected synchronized int retainAcceptedCertificates(final UserHandle userHandle, 3098 final @NonNull Collection<String> installedCertificates) { 3099 enforceManageUsers(); 3100 3101 if (!mHasFeature) { 3102 return installedCertificates.size(); 3103 } else { 3104 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 3105 3106 // Remove deleted certificates. Flush xml if necessary. 3107 if (policy.mAcceptedCaCertificates.retainAll(installedCertificates)) { 3108 saveSettingsLocked(userHandle.getIdentifier()); 3109 } 3110 3111 // Trim approved certificates from the count. 3112 return installedCertificates.size() - policy.mAcceptedCaCertificates.size(); 3113 } 3114 } 3115 3116 /** 3117 * @param adminReceiver The admin to add 3118 * @param refreshing true = update an active admin, no error 3119 */ 3120 @Override 3121 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 3122 if (!mHasFeature) { 3123 return; 3124 } 3125 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 3126 } 3127 3128 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 3129 Bundle onEnableData) { 3130 mContext.enforceCallingOrSelfPermission( 3131 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3132 enforceFullCrossUsersPermission(userHandle); 3133 3134 DevicePolicyData policy = getUserData(userHandle); 3135 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 3136 /* throwForMissionPermission= */ true); 3137 if (info == null) { 3138 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 3139 } 3140 if (!info.getActivityInfo().applicationInfo.isInternal()) { 3141 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 3142 + adminReceiver); 3143 } 3144 synchronized (this) { 3145 long ident = mInjector.binderClearCallingIdentity(); 3146 try { 3147 final ActiveAdmin existingAdmin 3148 = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3149 if (!refreshing && existingAdmin != null) { 3150 throw new IllegalArgumentException("Admin is already added"); 3151 } 3152 if (policy.mRemovingAdmins.contains(adminReceiver)) { 3153 throw new IllegalArgumentException( 3154 "Trying to set an admin which is being removed"); 3155 } 3156 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 3157 newAdmin.testOnlyAdmin = 3158 (existingAdmin != null) ? existingAdmin.testOnlyAdmin 3159 : isPackageTestOnly(adminReceiver.getPackageName(), userHandle); 3160 policy.mAdminMap.put(adminReceiver, newAdmin); 3161 int replaceIndex = -1; 3162 final int N = policy.mAdminList.size(); 3163 for (int i=0; i < N; i++) { 3164 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 3165 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 3166 replaceIndex = i; 3167 break; 3168 } 3169 } 3170 if (replaceIndex == -1) { 3171 policy.mAdminList.add(newAdmin); 3172 enableIfNecessary(info.getPackageName(), userHandle); 3173 } else { 3174 policy.mAdminList.set(replaceIndex, newAdmin); 3175 } 3176 saveSettingsLocked(userHandle); 3177 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 3178 onEnableData, null); 3179 } finally { 3180 mInjector.binderRestoreCallingIdentity(ident); 3181 } 3182 } 3183 } 3184 3185 @Override 3186 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 3187 if (!mHasFeature) { 3188 return false; 3189 } 3190 enforceFullCrossUsersPermission(userHandle); 3191 synchronized (this) { 3192 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 3193 } 3194 } 3195 3196 @Override 3197 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 3198 if (!mHasFeature) { 3199 return false; 3200 } 3201 enforceFullCrossUsersPermission(userHandle); 3202 synchronized (this) { 3203 DevicePolicyData policyData = getUserData(userHandle); 3204 return policyData.mRemovingAdmins.contains(adminReceiver); 3205 } 3206 } 3207 3208 @Override 3209 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 3210 if (!mHasFeature) { 3211 return false; 3212 } 3213 enforceFullCrossUsersPermission(userHandle); 3214 synchronized (this) { 3215 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3216 if (administrator == null) { 3217 throw new SecurityException("No active admin " + adminReceiver); 3218 } 3219 return administrator.info.usesPolicy(policyId); 3220 } 3221 } 3222 3223 @Override 3224 @SuppressWarnings("unchecked") 3225 public List<ComponentName> getActiveAdmins(int userHandle) { 3226 if (!mHasFeature) { 3227 return Collections.EMPTY_LIST; 3228 } 3229 3230 enforceFullCrossUsersPermission(userHandle); 3231 synchronized (this) { 3232 DevicePolicyData policy = getUserData(userHandle); 3233 final int N = policy.mAdminList.size(); 3234 if (N <= 0) { 3235 return null; 3236 } 3237 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 3238 for (int i=0; i<N; i++) { 3239 res.add(policy.mAdminList.get(i).info.getComponent()); 3240 } 3241 return res; 3242 } 3243 } 3244 3245 @Override 3246 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 3247 if (!mHasFeature) { 3248 return false; 3249 } 3250 enforceFullCrossUsersPermission(userHandle); 3251 synchronized (this) { 3252 DevicePolicyData policy = getUserData(userHandle); 3253 final int N = policy.mAdminList.size(); 3254 for (int i=0; i<N; i++) { 3255 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 3256 return true; 3257 } 3258 } 3259 return false; 3260 } 3261 } 3262 3263 public void forceRemoveActiveAdmin(ComponentName adminReceiver, int userHandle) { 3264 if (!mHasFeature) { 3265 return; 3266 } 3267 Preconditions.checkNotNull(adminReceiver, "ComponentName is null"); 3268 enforceShell("forceRemoveActiveAdmin"); 3269 long ident = mInjector.binderClearCallingIdentity(); 3270 try { 3271 synchronized (this) { 3272 if (!isAdminTestOnlyLocked(adminReceiver, userHandle)) { 3273 throw new SecurityException("Attempt to remove non-test admin " 3274 + adminReceiver + " " + userHandle); 3275 } 3276 3277 // If admin is a device or profile owner tidy that up first. 3278 if (isDeviceOwner(adminReceiver, userHandle)) { 3279 clearDeviceOwnerLocked(getDeviceOwnerAdminLocked(), userHandle); 3280 } 3281 if (isProfileOwner(adminReceiver, userHandle)) { 3282 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, 3283 userHandle, /* parent */ false); 3284 clearProfileOwnerLocked(admin, userHandle); 3285 } 3286 } 3287 // Remove the admin skipping sending the broadcast. 3288 removeAdminArtifacts(adminReceiver, userHandle); 3289 Slog.i(LOG_TAG, "Admin " + adminReceiver + " removed from user " + userHandle); 3290 } finally { 3291 mInjector.binderRestoreCallingIdentity(ident); 3292 } 3293 } 3294 3295 private void clearDeviceOwnerUserRestrictionLocked(UserHandle userHandle) { 3296 // ManagedProvisioning/DPC sets DISALLOW_ADD_USER. Clear to recover to the original state 3297 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_USER, userHandle)) { 3298 mUserManager.setUserRestriction(UserManager.DISALLOW_ADD_USER, false, userHandle); 3299 } 3300 } 3301 3302 /** 3303 * Return if a given package has testOnly="true", in which case we'll relax certain rules 3304 * for CTS. 3305 * 3306 * DO NOT use this method except in {@link #setActiveAdmin}. Use {@link #isAdminTestOnlyLocked} 3307 * to check wehter an active admin is test-only or not. 3308 * 3309 * The system allows this flag to be changed when an app is updated, which is not good 3310 * for us. So we persist the flag in {@link ActiveAdmin} when an admin is first installed, 3311 * and used the persisted version in actual checks. (See b/31382361 and b/28928996) 3312 */ 3313 private boolean isPackageTestOnly(String packageName, int userHandle) { 3314 final ApplicationInfo ai; 3315 try { 3316 ai = mIPackageManager.getApplicationInfo(packageName, 3317 (PackageManager.MATCH_DIRECT_BOOT_AWARE 3318 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE), userHandle); 3319 } catch (RemoteException e) { 3320 throw new IllegalStateException(e); 3321 } 3322 if (ai == null) { 3323 throw new IllegalStateException("Couldn't find package: " 3324 + packageName + " on user " + userHandle); 3325 } 3326 return (ai.flags & ApplicationInfo.FLAG_TEST_ONLY) != 0; 3327 } 3328 3329 /** 3330 * See {@link #isPackageTestOnly}. 3331 */ 3332 private boolean isAdminTestOnlyLocked(ComponentName who, int userHandle) { 3333 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3334 return (admin != null) && admin.testOnlyAdmin; 3335 } 3336 3337 private void enforceShell(String method) { 3338 final int callingUid = Binder.getCallingUid(); 3339 if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) { 3340 throw new SecurityException("Non-shell user attempted to call " + method); 3341 } 3342 } 3343 3344 @Override 3345 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 3346 if (!mHasFeature) { 3347 return; 3348 } 3349 enforceFullCrossUsersPermission(userHandle); 3350 enforceUserUnlocked(userHandle); 3351 synchronized (this) { 3352 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3353 if (admin == null) { 3354 return; 3355 } 3356 // Active device/profile owners must remain active admins. 3357 if (isDeviceOwner(adminReceiver, userHandle) 3358 || isProfileOwner(adminReceiver, userHandle)) { 3359 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 3360 adminReceiver); 3361 return; 3362 } 3363 if (admin.getUid() != mInjector.binderGetCallingUid()) { 3364 mContext.enforceCallingOrSelfPermission( 3365 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3366 } 3367 long ident = mInjector.binderClearCallingIdentity(); 3368 try { 3369 removeActiveAdminLocked(adminReceiver, userHandle); 3370 } finally { 3371 mInjector.binderRestoreCallingIdentity(ident); 3372 } 3373 } 3374 } 3375 3376 @Override 3377 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 3378 ComponentName profileOwner = getProfileOwner(userHandle); 3379 // Profile challenge is supported on N or newer release. 3380 return profileOwner != null && 3381 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 3382 } 3383 3384 @Override 3385 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 3386 if (!mHasFeature) { 3387 return; 3388 } 3389 Preconditions.checkNotNull(who, "ComponentName is null"); 3390 validateQualityConstant(quality); 3391 3392 synchronized (this) { 3393 ActiveAdmin ap = getActiveAdminForCallerLocked( 3394 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3395 if (ap.minimumPasswordMetrics.quality != quality) { 3396 ap.minimumPasswordMetrics.quality = quality; 3397 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3398 } 3399 } 3400 } 3401 3402 @Override 3403 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 3404 if (!mHasFeature) { 3405 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3406 } 3407 enforceFullCrossUsersPermission(userHandle); 3408 synchronized (this) { 3409 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3410 3411 if (who != null) { 3412 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3413 return admin != null ? admin.minimumPasswordMetrics.quality : mode; 3414 } 3415 3416 // Return the strictest policy across all participating admins. 3417 List<ActiveAdmin> admins = 3418 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3419 final int N = admins.size(); 3420 for (int i = 0; i < N; i++) { 3421 ActiveAdmin admin = admins.get(i); 3422 if (mode < admin.minimumPasswordMetrics.quality) { 3423 mode = admin.minimumPasswordMetrics.quality; 3424 } 3425 } 3426 return mode; 3427 } 3428 } 3429 3430 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 3431 int userHandle, boolean parent) { 3432 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 3433 // If this user has a separate challenge, only return its restrictions. 3434 return getUserDataUnchecked(userHandle).mAdminList; 3435 } else { 3436 // Return all admins for this user and the profiles that are visible from this 3437 // user that do not use a separate work challenge. 3438 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 3439 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3440 DevicePolicyData policy = getUserData(userInfo.id); 3441 if (!userInfo.isManagedProfile()) { 3442 admins.addAll(policy.mAdminList); 3443 } else { 3444 // For managed profiles, we always include the policies set on the parent 3445 // profile. Additionally, we include the ones set on the managed profile 3446 // if no separate challenge is in place. 3447 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 3448 final int N = policy.mAdminList.size(); 3449 for (int i = 0; i < N; i++) { 3450 ActiveAdmin admin = policy.mAdminList.get(i); 3451 if (admin.hasParentActiveAdmin()) { 3452 admins.add(admin.getParentActiveAdmin()); 3453 } 3454 if (!hasSeparateChallenge) { 3455 admins.add(admin); 3456 } 3457 } 3458 } 3459 } 3460 return admins; 3461 } 3462 } 3463 3464 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 3465 long ident = mInjector.binderClearCallingIdentity(); 3466 try { 3467 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 3468 } finally { 3469 mInjector.binderRestoreCallingIdentity(ident); 3470 } 3471 } 3472 3473 @Override 3474 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 3475 if (!mHasFeature) { 3476 return; 3477 } 3478 Preconditions.checkNotNull(who, "ComponentName is null"); 3479 synchronized (this) { 3480 ActiveAdmin ap = getActiveAdminForCallerLocked( 3481 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3482 if (ap.minimumPasswordMetrics.length != length) { 3483 ap.minimumPasswordMetrics.length = length; 3484 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3485 } 3486 } 3487 } 3488 3489 @Override 3490 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 3491 if (!mHasFeature) { 3492 return 0; 3493 } 3494 enforceFullCrossUsersPermission(userHandle); 3495 synchronized (this) { 3496 int length = 0; 3497 3498 if (who != null) { 3499 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3500 return admin != null ? admin.minimumPasswordMetrics.length : length; 3501 } 3502 3503 // Return the strictest policy across all participating admins. 3504 List<ActiveAdmin> admins = 3505 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3506 final int N = admins.size(); 3507 for (int i = 0; i < N; i++) { 3508 ActiveAdmin admin = admins.get(i); 3509 if (length < admin.minimumPasswordMetrics.length) { 3510 length = admin.minimumPasswordMetrics.length; 3511 } 3512 } 3513 return length; 3514 } 3515 } 3516 3517 @Override 3518 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 3519 if (!mHasFeature) { 3520 return; 3521 } 3522 Preconditions.checkNotNull(who, "ComponentName is null"); 3523 synchronized (this) { 3524 ActiveAdmin ap = getActiveAdminForCallerLocked( 3525 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3526 if (ap.passwordHistoryLength != length) { 3527 ap.passwordHistoryLength = length; 3528 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3529 } 3530 } 3531 } 3532 3533 @Override 3534 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 3535 if (!mHasFeature) { 3536 return 0; 3537 } 3538 enforceFullCrossUsersPermission(userHandle); 3539 synchronized (this) { 3540 int length = 0; 3541 3542 if (who != null) { 3543 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3544 return admin != null ? admin.passwordHistoryLength : length; 3545 } 3546 3547 // Return the strictest policy across all participating admins. 3548 List<ActiveAdmin> admins = 3549 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3550 final int N = admins.size(); 3551 for (int i = 0; i < N; i++) { 3552 ActiveAdmin admin = admins.get(i); 3553 if (length < admin.passwordHistoryLength) { 3554 length = admin.passwordHistoryLength; 3555 } 3556 } 3557 3558 return length; 3559 } 3560 } 3561 3562 @Override 3563 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 3564 if (!mHasFeature) { 3565 return; 3566 } 3567 Preconditions.checkNotNull(who, "ComponentName is null"); 3568 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 3569 final int userHandle = mInjector.userHandleGetCallingUserId(); 3570 synchronized (this) { 3571 ActiveAdmin ap = getActiveAdminForCallerLocked( 3572 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 3573 // Calling this API automatically bumps the expiration date 3574 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3575 ap.passwordExpirationDate = expiration; 3576 ap.passwordExpirationTimeout = timeout; 3577 if (timeout > 0L) { 3578 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 3579 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 3580 .format(new Date(expiration))); 3581 } 3582 saveSettingsLocked(userHandle); 3583 3584 // in case this is the first one, set the alarm on the appropriate user. 3585 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 3586 } 3587 } 3588 3589 /** 3590 * Return a single admin's expiration cycle time, or the min of all cycle times. 3591 * Returns 0 if not configured. 3592 */ 3593 @Override 3594 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 3595 if (!mHasFeature) { 3596 return 0L; 3597 } 3598 enforceFullCrossUsersPermission(userHandle); 3599 synchronized (this) { 3600 long timeout = 0L; 3601 3602 if (who != null) { 3603 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3604 return admin != null ? admin.passwordExpirationTimeout : timeout; 3605 } 3606 3607 // Return the strictest policy across all participating admins. 3608 List<ActiveAdmin> admins = 3609 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3610 final int N = admins.size(); 3611 for (int i = 0; i < N; i++) { 3612 ActiveAdmin admin = admins.get(i); 3613 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 3614 && timeout > admin.passwordExpirationTimeout)) { 3615 timeout = admin.passwordExpirationTimeout; 3616 } 3617 } 3618 return timeout; 3619 } 3620 } 3621 3622 @Override 3623 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3624 final int userId = UserHandle.getCallingUserId(); 3625 List<String> changedProviders = null; 3626 3627 synchronized (this) { 3628 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3629 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3630 if (activeAdmin.crossProfileWidgetProviders == null) { 3631 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 3632 } 3633 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3634 if (!providers.contains(packageName)) { 3635 providers.add(packageName); 3636 changedProviders = new ArrayList<>(providers); 3637 saveSettingsLocked(userId); 3638 } 3639 } 3640 3641 if (changedProviders != null) { 3642 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3643 return true; 3644 } 3645 3646 return false; 3647 } 3648 3649 @Override 3650 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3651 final int userId = UserHandle.getCallingUserId(); 3652 List<String> changedProviders = null; 3653 3654 synchronized (this) { 3655 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3656 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3657 if (activeAdmin.crossProfileWidgetProviders == null 3658 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3659 return false; 3660 } 3661 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3662 if (providers.remove(packageName)) { 3663 changedProviders = new ArrayList<>(providers); 3664 saveSettingsLocked(userId); 3665 } 3666 } 3667 3668 if (changedProviders != null) { 3669 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3670 return true; 3671 } 3672 3673 return false; 3674 } 3675 3676 @Override 3677 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 3678 synchronized (this) { 3679 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3680 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3681 if (activeAdmin.crossProfileWidgetProviders == null 3682 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3683 return null; 3684 } 3685 if (mInjector.binderIsCallingUidMyUid()) { 3686 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 3687 } else { 3688 return activeAdmin.crossProfileWidgetProviders; 3689 } 3690 } 3691 } 3692 3693 /** 3694 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 3695 * Returns 0 if not configured. 3696 */ 3697 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 3698 long timeout = 0L; 3699 3700 if (who != null) { 3701 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3702 return admin != null ? admin.passwordExpirationDate : timeout; 3703 } 3704 3705 // Return the strictest policy across all participating admins. 3706 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3707 final int N = admins.size(); 3708 for (int i = 0; i < N; i++) { 3709 ActiveAdmin admin = admins.get(i); 3710 if (timeout == 0L || (admin.passwordExpirationDate != 0 3711 && timeout > admin.passwordExpirationDate)) { 3712 timeout = admin.passwordExpirationDate; 3713 } 3714 } 3715 return timeout; 3716 } 3717 3718 @Override 3719 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 3720 if (!mHasFeature) { 3721 return 0L; 3722 } 3723 enforceFullCrossUsersPermission(userHandle); 3724 synchronized (this) { 3725 return getPasswordExpirationLocked(who, userHandle, parent); 3726 } 3727 } 3728 3729 @Override 3730 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 3731 if (!mHasFeature) { 3732 return; 3733 } 3734 Preconditions.checkNotNull(who, "ComponentName is null"); 3735 synchronized (this) { 3736 ActiveAdmin ap = getActiveAdminForCallerLocked( 3737 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3738 if (ap.minimumPasswordMetrics.upperCase != length) { 3739 ap.minimumPasswordMetrics.upperCase = length; 3740 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3741 } 3742 } 3743 } 3744 3745 @Override 3746 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 3747 if (!mHasFeature) { 3748 return 0; 3749 } 3750 enforceFullCrossUsersPermission(userHandle); 3751 synchronized (this) { 3752 int length = 0; 3753 3754 if (who != null) { 3755 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3756 return admin != null ? admin.minimumPasswordMetrics.upperCase : length; 3757 } 3758 3759 // Return the strictest policy across all participating admins. 3760 List<ActiveAdmin> admins = 3761 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3762 final int N = admins.size(); 3763 for (int i = 0; i < N; i++) { 3764 ActiveAdmin admin = admins.get(i); 3765 if (length < admin.minimumPasswordMetrics.upperCase) { 3766 length = admin.minimumPasswordMetrics.upperCase; 3767 } 3768 } 3769 return length; 3770 } 3771 } 3772 3773 @Override 3774 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 3775 Preconditions.checkNotNull(who, "ComponentName is null"); 3776 synchronized (this) { 3777 ActiveAdmin ap = getActiveAdminForCallerLocked( 3778 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3779 if (ap.minimumPasswordMetrics.lowerCase != length) { 3780 ap.minimumPasswordMetrics.lowerCase = length; 3781 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3782 } 3783 } 3784 } 3785 3786 @Override 3787 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 3788 if (!mHasFeature) { 3789 return 0; 3790 } 3791 enforceFullCrossUsersPermission(userHandle); 3792 synchronized (this) { 3793 int length = 0; 3794 3795 if (who != null) { 3796 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3797 return admin != null ? admin.minimumPasswordMetrics.lowerCase : length; 3798 } 3799 3800 // Return the strictest policy across all participating admins. 3801 List<ActiveAdmin> admins = 3802 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3803 final int N = admins.size(); 3804 for (int i = 0; i < N; i++) { 3805 ActiveAdmin admin = admins.get(i); 3806 if (length < admin.minimumPasswordMetrics.lowerCase) { 3807 length = admin.minimumPasswordMetrics.lowerCase; 3808 } 3809 } 3810 return length; 3811 } 3812 } 3813 3814 @Override 3815 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 3816 if (!mHasFeature) { 3817 return; 3818 } 3819 Preconditions.checkNotNull(who, "ComponentName is null"); 3820 synchronized (this) { 3821 ActiveAdmin ap = getActiveAdminForCallerLocked( 3822 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3823 if (ap.minimumPasswordMetrics.letters != length) { 3824 ap.minimumPasswordMetrics.letters = length; 3825 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3826 } 3827 } 3828 } 3829 3830 @Override 3831 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 3832 if (!mHasFeature) { 3833 return 0; 3834 } 3835 enforceFullCrossUsersPermission(userHandle); 3836 synchronized (this) { 3837 int length = 0; 3838 3839 if (who != null) { 3840 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3841 return admin != null ? admin.minimumPasswordMetrics.letters : length; 3842 } 3843 3844 // Return the strictest policy across all participating admins. 3845 List<ActiveAdmin> admins = 3846 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3847 final int N = admins.size(); 3848 for (int i = 0; i < N; i++) { 3849 ActiveAdmin admin = admins.get(i); 3850 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3851 continue; 3852 } 3853 if (length < admin.minimumPasswordMetrics.letters) { 3854 length = admin.minimumPasswordMetrics.letters; 3855 } 3856 } 3857 return length; 3858 } 3859 } 3860 3861 @Override 3862 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 3863 if (!mHasFeature) { 3864 return; 3865 } 3866 Preconditions.checkNotNull(who, "ComponentName is null"); 3867 synchronized (this) { 3868 ActiveAdmin ap = getActiveAdminForCallerLocked( 3869 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3870 if (ap.minimumPasswordMetrics.numeric != length) { 3871 ap.minimumPasswordMetrics.numeric = length; 3872 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3873 } 3874 } 3875 } 3876 3877 @Override 3878 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 3879 if (!mHasFeature) { 3880 return 0; 3881 } 3882 enforceFullCrossUsersPermission(userHandle); 3883 synchronized (this) { 3884 int length = 0; 3885 3886 if (who != null) { 3887 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3888 return admin != null ? admin.minimumPasswordMetrics.numeric : length; 3889 } 3890 3891 // Return the strictest policy across all participating admins. 3892 List<ActiveAdmin> admins = 3893 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3894 final int N = admins.size(); 3895 for (int i = 0; i < N; i++) { 3896 ActiveAdmin admin = admins.get(i); 3897 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3898 continue; 3899 } 3900 if (length < admin.minimumPasswordMetrics.numeric) { 3901 length = admin.minimumPasswordMetrics.numeric; 3902 } 3903 } 3904 return length; 3905 } 3906 } 3907 3908 @Override 3909 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 3910 if (!mHasFeature) { 3911 return; 3912 } 3913 Preconditions.checkNotNull(who, "ComponentName is null"); 3914 synchronized (this) { 3915 ActiveAdmin ap = getActiveAdminForCallerLocked( 3916 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3917 if (ap.minimumPasswordMetrics.symbols != length) { 3918 ap.minimumPasswordMetrics.symbols = length; 3919 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3920 } 3921 } 3922 } 3923 3924 @Override 3925 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 3926 if (!mHasFeature) { 3927 return 0; 3928 } 3929 enforceFullCrossUsersPermission(userHandle); 3930 synchronized (this) { 3931 int length = 0; 3932 3933 if (who != null) { 3934 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3935 return admin != null ? admin.minimumPasswordMetrics.symbols : length; 3936 } 3937 3938 // Return the strictest policy across all participating admins. 3939 List<ActiveAdmin> admins = 3940 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3941 final int N = admins.size(); 3942 for (int i = 0; i < N; i++) { 3943 ActiveAdmin admin = admins.get(i); 3944 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3945 continue; 3946 } 3947 if (length < admin.minimumPasswordMetrics.symbols) { 3948 length = admin.minimumPasswordMetrics.symbols; 3949 } 3950 } 3951 return length; 3952 } 3953 } 3954 3955 @Override 3956 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 3957 if (!mHasFeature) { 3958 return; 3959 } 3960 Preconditions.checkNotNull(who, "ComponentName is null"); 3961 synchronized (this) { 3962 ActiveAdmin ap = getActiveAdminForCallerLocked( 3963 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3964 if (ap.minimumPasswordMetrics.nonLetter != length) { 3965 ap.minimumPasswordMetrics.nonLetter = length; 3966 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3967 } 3968 } 3969 } 3970 3971 @Override 3972 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 3973 if (!mHasFeature) { 3974 return 0; 3975 } 3976 enforceFullCrossUsersPermission(userHandle); 3977 synchronized (this) { 3978 int length = 0; 3979 3980 if (who != null) { 3981 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3982 return admin != null ? admin.minimumPasswordMetrics.nonLetter : length; 3983 } 3984 3985 // Return the strictest policy across all participating admins. 3986 List<ActiveAdmin> admins = 3987 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3988 final int N = admins.size(); 3989 for (int i = 0; i < N; i++) { 3990 ActiveAdmin admin = admins.get(i); 3991 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3992 continue; 3993 } 3994 if (length < admin.minimumPasswordMetrics.nonLetter) { 3995 length = admin.minimumPasswordMetrics.nonLetter; 3996 } 3997 } 3998 return length; 3999 } 4000 } 4001 4002 @Override 4003 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 4004 if (!mHasFeature) { 4005 return true; 4006 } 4007 enforceFullCrossUsersPermission(userHandle); 4008 4009 synchronized (this) { 4010 // This API can only be called by an active device admin, 4011 // so try to retrieve it to check that the caller is one. 4012 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4013 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 4014 return isActivePasswordSufficientForUserLocked(policy, userHandle, parent); 4015 } 4016 } 4017 4018 @Override 4019 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 4020 if (!mHasFeature) { 4021 return true; 4022 } 4023 enforceFullCrossUsersPermission(userHandle); 4024 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 4025 4026 synchronized (this) { 4027 int targetUser = getProfileParentId(userHandle); 4028 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false)); 4029 return isActivePasswordSufficientForUserLocked(policy, targetUser, false); 4030 } 4031 } 4032 4033 private boolean isActivePasswordSufficientForUserLocked( 4034 DevicePolicyData policy, int userHandle, boolean parent) { 4035 enforceUserUnlocked(userHandle, parent); 4036 4037 final int requiredPasswordQuality = getPasswordQuality(null, userHandle, parent); 4038 if (policy.mActivePasswordMetrics.quality < requiredPasswordQuality) { 4039 return false; 4040 } 4041 if (requiredPasswordQuality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC 4042 && policy.mActivePasswordMetrics.length < getPasswordMinimumLength( 4043 null, userHandle, parent)) { 4044 return false; 4045 } 4046 if (requiredPasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4047 return true; 4048 } 4049 return policy.mActivePasswordMetrics.upperCase >= getPasswordMinimumUpperCase( 4050 null, userHandle, parent) 4051 && policy.mActivePasswordMetrics.lowerCase >= getPasswordMinimumLowerCase( 4052 null, userHandle, parent) 4053 && policy.mActivePasswordMetrics.letters >= getPasswordMinimumLetters( 4054 null, userHandle, parent) 4055 && policy.mActivePasswordMetrics.numeric >= getPasswordMinimumNumeric( 4056 null, userHandle, parent) 4057 && policy.mActivePasswordMetrics.symbols >= getPasswordMinimumSymbols( 4058 null, userHandle, parent) 4059 && policy.mActivePasswordMetrics.nonLetter >= getPasswordMinimumNonLetter( 4060 null, userHandle, parent); 4061 } 4062 4063 @Override 4064 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 4065 enforceFullCrossUsersPermission(userHandle); 4066 synchronized (this) { 4067 if (!isCallerWithSystemUid()) { 4068 // This API can only be called by an active device admin, 4069 // so try to retrieve it to check that the caller is one. 4070 getActiveAdminForCallerLocked( 4071 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4072 } 4073 4074 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 4075 4076 return policy.mFailedPasswordAttempts; 4077 } 4078 } 4079 4080 @Override 4081 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 4082 if (!mHasFeature) { 4083 return; 4084 } 4085 Preconditions.checkNotNull(who, "ComponentName is null"); 4086 synchronized (this) { 4087 // This API can only be called by an active device admin, 4088 // so try to retrieve it to check that the caller is one. 4089 getActiveAdminForCallerLocked( 4090 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 4091 ActiveAdmin ap = getActiveAdminForCallerLocked( 4092 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4093 if (ap.maximumFailedPasswordsForWipe != num) { 4094 ap.maximumFailedPasswordsForWipe = num; 4095 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4096 } 4097 } 4098 } 4099 4100 @Override 4101 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 4102 if (!mHasFeature) { 4103 return 0; 4104 } 4105 enforceFullCrossUsersPermission(userHandle); 4106 synchronized (this) { 4107 ActiveAdmin admin = (who != null) 4108 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 4109 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 4110 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 4111 } 4112 } 4113 4114 @Override 4115 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 4116 if (!mHasFeature) { 4117 return UserHandle.USER_NULL; 4118 } 4119 enforceFullCrossUsersPermission(userHandle); 4120 synchronized (this) { 4121 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4122 userHandle, parent); 4123 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 4124 } 4125 } 4126 4127 /** 4128 * Returns the admin with the strictest policy on maximum failed passwords for: 4129 * <ul> 4130 * <li>this user if it has a separate profile challenge, or 4131 * <li>this user and all profiles that don't have their own challenge otherwise. 4132 * </ul> 4133 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 4134 * the primary profile. 4135 * Returns {@code null} if no participating admin has that policy set. 4136 */ 4137 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 4138 int userHandle, boolean parent) { 4139 int count = 0; 4140 ActiveAdmin strictestAdmin = null; 4141 4142 // Return the strictest policy across all participating admins. 4143 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4144 final int N = admins.size(); 4145 for (int i = 0; i < N; i++) { 4146 ActiveAdmin admin = admins.get(i); 4147 if (admin.maximumFailedPasswordsForWipe == 4148 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 4149 continue; // No max number of failed passwords policy set for this profile. 4150 } 4151 4152 // We always favor the primary profile if several profiles have the same value set. 4153 int userId = admin.getUserHandle().getIdentifier(); 4154 if (count == 0 || 4155 count > admin.maximumFailedPasswordsForWipe || 4156 (count == admin.maximumFailedPasswordsForWipe && 4157 getUserInfo(userId).isPrimary())) { 4158 count = admin.maximumFailedPasswordsForWipe; 4159 strictestAdmin = admin; 4160 } 4161 } 4162 return strictestAdmin; 4163 } 4164 4165 private UserInfo getUserInfo(@UserIdInt int userId) { 4166 final long token = mInjector.binderClearCallingIdentity(); 4167 try { 4168 return mUserManager.getUserInfo(userId); 4169 } finally { 4170 mInjector.binderRestoreCallingIdentity(token); 4171 } 4172 } 4173 @Override 4174 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 4175 final int callingUid = mInjector.binderGetCallingUid(); 4176 final int userHandle = mInjector.userHandleGetCallingUserId(); 4177 4178 String password = passwordOrNull != null ? passwordOrNull : ""; 4179 4180 // Password resetting to empty/null is not allowed for managed profiles. 4181 if (TextUtils.isEmpty(password)) { 4182 enforceNotManagedProfile(userHandle, "clear the active password"); 4183 } 4184 4185 synchronized (this) { 4186 // If caller has PO (or DO) it can change the password, so see if that's the case first. 4187 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 4188 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 4189 final boolean preN; 4190 if (admin != null) { 4191 final int targetSdk = getTargetSdk(admin.info.getPackageName(), userHandle); 4192 if (targetSdk >= Build.VERSION_CODES.O) { 4193 throw new SecurityException("resetPassword() is deprecated for DPC targeting O" 4194 + " or later"); 4195 } 4196 preN = targetSdk <= android.os.Build.VERSION_CODES.M; 4197 } else { 4198 // Otherwise, make sure the caller has any active admin with the right policy. 4199 admin = getActiveAdminForCallerLocked(null, 4200 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 4201 preN = getTargetSdk(admin.info.getPackageName(), 4202 userHandle) <= android.os.Build.VERSION_CODES.M; 4203 4204 // As of N, password resetting to empty/null is not allowed anymore. 4205 // TODO Should we allow DO/PO to set an empty password? 4206 if (TextUtils.isEmpty(password)) { 4207 if (!preN) { 4208 throw new SecurityException("Cannot call with null password"); 4209 } else { 4210 Slog.e(LOG_TAG, "Cannot call with null password"); 4211 return false; 4212 } 4213 } 4214 // As of N, password cannot be changed by the admin if it is already set. 4215 if (isLockScreenSecureUnchecked(userHandle)) { 4216 if (!preN) { 4217 throw new SecurityException("Admin cannot change current password"); 4218 } else { 4219 Slog.e(LOG_TAG, "Admin cannot change current password"); 4220 return false; 4221 } 4222 } 4223 } 4224 // Do not allow to reset password when current user has a managed profile 4225 if (!isManagedProfile(userHandle)) { 4226 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4227 if (userInfo.isManagedProfile()) { 4228 if (!preN) { 4229 throw new IllegalStateException( 4230 "Cannot reset password on user has managed profile"); 4231 } else { 4232 Slog.e(LOG_TAG, "Cannot reset password on user has managed profile"); 4233 return false; 4234 } 4235 } 4236 } 4237 } 4238 // Do not allow to reset password when user is locked 4239 if (!mUserManager.isUserUnlocked(userHandle)) { 4240 if (!preN) { 4241 throw new IllegalStateException("Cannot reset password when user is locked"); 4242 } else { 4243 Slog.e(LOG_TAG, "Cannot reset password when user is locked"); 4244 return false; 4245 } 4246 } 4247 } 4248 4249 return resetPasswordInternal(password, 0, null, flags, callingUid, userHandle); 4250 } 4251 4252 private boolean resetPasswordInternal(String password, long tokenHandle, byte[] token, 4253 int flags, int callingUid, int userHandle) { 4254 int quality; 4255 synchronized (this) { 4256 quality = getPasswordQuality(null, userHandle, /* parent */ false); 4257 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 4258 quality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 4259 } 4260 final PasswordMetrics metrics = PasswordMetrics.computeForPassword(password); 4261 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 4262 final int realQuality = metrics.quality; 4263 if (realQuality < quality 4264 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4265 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 4266 + Integer.toHexString(realQuality) 4267 + " does not meet required quality 0x" 4268 + Integer.toHexString(quality)); 4269 return false; 4270 } 4271 quality = Math.max(realQuality, quality); 4272 } 4273 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 4274 if (password.length() < length) { 4275 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 4276 + " does not meet required length " + length); 4277 return false; 4278 } 4279 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4280 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 4281 if(metrics.letters < neededLetters) { 4282 Slog.w(LOG_TAG, "resetPassword: number of letters " + metrics.letters 4283 + " does not meet required number of letters " + neededLetters); 4284 return false; 4285 } 4286 int neededNumeric = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 4287 if (metrics.numeric < neededNumeric) { 4288 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + metrics.numeric 4289 + " does not meet required number of numerical digits " 4290 + neededNumeric); 4291 return false; 4292 } 4293 int neededLowerCase = getPasswordMinimumLowerCase( 4294 null, userHandle, /* parent */ false); 4295 if (metrics.lowerCase < neededLowerCase) { 4296 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " 4297 + metrics.lowerCase 4298 + " does not meet required number of lowercase letters " 4299 + neededLowerCase); 4300 return false; 4301 } 4302 int neededUpperCase = getPasswordMinimumUpperCase( 4303 null, userHandle, /* parent */ false); 4304 if (metrics.upperCase < neededUpperCase) { 4305 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " 4306 + metrics.upperCase 4307 + " does not meet required number of uppercase letters " 4308 + neededUpperCase); 4309 return false; 4310 } 4311 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 4312 if (metrics.symbols < neededSymbols) { 4313 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + metrics.symbols 4314 + " does not meet required number of special symbols " + neededSymbols); 4315 return false; 4316 } 4317 int neededNonLetter = getPasswordMinimumNonLetter( 4318 null, userHandle, /* parent */ false); 4319 if (metrics.nonLetter < neededNonLetter) { 4320 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " 4321 + metrics.nonLetter 4322 + " does not meet required number of non-letter characters " 4323 + neededNonLetter); 4324 return false; 4325 } 4326 } 4327 } 4328 4329 DevicePolicyData policy = getUserData(userHandle); 4330 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 4331 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 4332 return false; 4333 } 4334 4335 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 4336 boolean doNotAskCredentialsOnBoot = 4337 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 4338 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 4339 setDoNotAskCredentialsOnBoot(); 4340 } 4341 4342 // Don't do this with the lock held, because it is going to call 4343 // back in to the service. 4344 final long ident = mInjector.binderClearCallingIdentity(); 4345 final boolean result; 4346 try { 4347 if (token == null) { 4348 if (!TextUtils.isEmpty(password)) { 4349 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 4350 } else { 4351 mLockPatternUtils.clearLock(null, userHandle); 4352 } 4353 result = true; 4354 } else { 4355 result = mLockPatternUtils.setLockCredentialWithToken(password, 4356 TextUtils.isEmpty(password) ? LockPatternUtils.CREDENTIAL_TYPE_NONE 4357 : LockPatternUtils.CREDENTIAL_TYPE_PASSWORD, 4358 tokenHandle, token, userHandle); 4359 } 4360 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 4361 if (requireEntry) { 4362 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 4363 UserHandle.USER_ALL); 4364 } 4365 synchronized (this) { 4366 int newOwner = requireEntry ? callingUid : -1; 4367 if (policy.mPasswordOwner != newOwner) { 4368 policy.mPasswordOwner = newOwner; 4369 saveSettingsLocked(userHandle); 4370 } 4371 } 4372 } finally { 4373 mInjector.binderRestoreCallingIdentity(ident); 4374 } 4375 return result; 4376 } 4377 4378 private boolean isLockScreenSecureUnchecked(int userId) { 4379 long ident = mInjector.binderClearCallingIdentity(); 4380 try { 4381 return mLockPatternUtils.isSecure(userId); 4382 } finally { 4383 mInjector.binderRestoreCallingIdentity(ident); 4384 } 4385 } 4386 4387 private void setDoNotAskCredentialsOnBoot() { 4388 synchronized (this) { 4389 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4390 if (!policyData.doNotAskCredentialsOnBoot) { 4391 policyData.doNotAskCredentialsOnBoot = true; 4392 saveSettingsLocked(UserHandle.USER_SYSTEM); 4393 } 4394 } 4395 } 4396 4397 @Override 4398 public boolean getDoNotAskCredentialsOnBoot() { 4399 mContext.enforceCallingOrSelfPermission( 4400 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 4401 synchronized (this) { 4402 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4403 return policyData.doNotAskCredentialsOnBoot; 4404 } 4405 } 4406 4407 @Override 4408 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 4409 if (!mHasFeature) { 4410 return; 4411 } 4412 Preconditions.checkNotNull(who, "ComponentName is null"); 4413 final int userHandle = mInjector.userHandleGetCallingUserId(); 4414 synchronized (this) { 4415 ActiveAdmin ap = getActiveAdminForCallerLocked( 4416 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4417 if (ap.maximumTimeToUnlock != timeMs) { 4418 ap.maximumTimeToUnlock = timeMs; 4419 saveSettingsLocked(userHandle); 4420 updateMaximumTimeToLockLocked(userHandle); 4421 } 4422 } 4423 } 4424 4425 void updateMaximumTimeToLockLocked(int userHandle) { 4426 // Calculate the min timeout for all profiles - including the ones with a separate 4427 // challenge. Ideally if the timeout only affected the profile challenge we'd lock that 4428 // challenge only and keep the screen on. However there is no easy way of doing that at the 4429 // moment so we set the screen off timeout regardless of whether it affects the parent user 4430 // or the profile challenge only. 4431 long timeMs = Long.MAX_VALUE; 4432 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 4433 for (int profileId : profileIds) { 4434 DevicePolicyData policy = getUserDataUnchecked(profileId); 4435 final int N = policy.mAdminList.size(); 4436 for (int i = 0; i < N; i++) { 4437 ActiveAdmin admin = policy.mAdminList.get(i); 4438 if (admin.maximumTimeToUnlock > 0 4439 && timeMs > admin.maximumTimeToUnlock) { 4440 timeMs = admin.maximumTimeToUnlock; 4441 } 4442 // If userInfo.id is a managed profile, we also need to look at 4443 // the policies set on the parent. 4444 if (admin.hasParentActiveAdmin()) { 4445 final ActiveAdmin parentAdmin = admin.getParentActiveAdmin(); 4446 if (parentAdmin.maximumTimeToUnlock > 0 4447 && timeMs > parentAdmin.maximumTimeToUnlock) { 4448 timeMs = parentAdmin.maximumTimeToUnlock; 4449 } 4450 } 4451 } 4452 } 4453 4454 // We only store the last maximum time to lock on the parent profile. So if calling from a 4455 // managed profile, retrieve the policy for the parent. 4456 DevicePolicyData policy = getUserDataUnchecked(getProfileParentId(userHandle)); 4457 if (policy.mLastMaximumTimeToLock == timeMs) { 4458 return; 4459 } 4460 policy.mLastMaximumTimeToLock = timeMs; 4461 4462 final long ident = mInjector.binderClearCallingIdentity(); 4463 try { 4464 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 4465 // Make sure KEEP_SCREEN_ON is disabled, since that 4466 // would allow bypassing of the maximum time to lock. 4467 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 4468 } 4469 4470 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4471 (int) Math.min(policy.mLastMaximumTimeToLock, Integer.MAX_VALUE)); 4472 } finally { 4473 mInjector.binderRestoreCallingIdentity(ident); 4474 } 4475 } 4476 4477 @Override 4478 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 4479 if (!mHasFeature) { 4480 return 0; 4481 } 4482 enforceFullCrossUsersPermission(userHandle); 4483 synchronized (this) { 4484 if (who != null) { 4485 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4486 return admin != null ? admin.maximumTimeToUnlock : 0; 4487 } 4488 // Return the strictest policy across all participating admins. 4489 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4490 userHandle, parent); 4491 return getMaximumTimeToLockPolicyFromAdmins(admins); 4492 } 4493 } 4494 4495 @Override 4496 public long getMaximumTimeToLockForUserAndProfiles(int userHandle) { 4497 if (!mHasFeature) { 4498 return 0; 4499 } 4500 enforceFullCrossUsersPermission(userHandle); 4501 synchronized (this) { 4502 // All admins for this user. 4503 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 4504 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4505 DevicePolicyData policy = getUserData(userInfo.id); 4506 admins.addAll(policy.mAdminList); 4507 // If it is a managed profile, it may have parent active admins 4508 if (userInfo.isManagedProfile()) { 4509 for (ActiveAdmin admin : policy.mAdminList) { 4510 if (admin.hasParentActiveAdmin()) { 4511 admins.add(admin.getParentActiveAdmin()); 4512 } 4513 } 4514 } 4515 } 4516 return getMaximumTimeToLockPolicyFromAdmins(admins); 4517 } 4518 } 4519 4520 private long getMaximumTimeToLockPolicyFromAdmins(List<ActiveAdmin> admins) { 4521 long time = 0; 4522 final int N = admins.size(); 4523 for (int i = 0; i < N; i++) { 4524 ActiveAdmin admin = admins.get(i); 4525 if (time == 0) { 4526 time = admin.maximumTimeToUnlock; 4527 } else if (admin.maximumTimeToUnlock != 0 4528 && time > admin.maximumTimeToUnlock) { 4529 time = admin.maximumTimeToUnlock; 4530 } 4531 } 4532 return time; 4533 } 4534 4535 @Override 4536 public void setRequiredStrongAuthTimeout(ComponentName who, long timeoutMs, 4537 boolean parent) { 4538 if (!mHasFeature) { 4539 return; 4540 } 4541 Preconditions.checkNotNull(who, "ComponentName is null"); 4542 Preconditions.checkArgument(timeoutMs >= 0, "Timeout must not be a negative number."); 4543 // timeoutMs with value 0 means that the admin doesn't participate 4544 // timeoutMs is clamped to the interval in case the internal constants change in the future 4545 final long minimumStrongAuthTimeout = getMinimumStrongAuthTimeoutMs(); 4546 if (timeoutMs != 0 && timeoutMs < minimumStrongAuthTimeout) { 4547 timeoutMs = minimumStrongAuthTimeout; 4548 } 4549 if (timeoutMs > DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 4550 timeoutMs = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4551 } 4552 4553 final int userHandle = mInjector.userHandleGetCallingUserId(); 4554 synchronized (this) { 4555 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4556 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 4557 if (ap.strongAuthUnlockTimeout != timeoutMs) { 4558 ap.strongAuthUnlockTimeout = timeoutMs; 4559 saveSettingsLocked(userHandle); 4560 } 4561 } 4562 } 4563 4564 /** 4565 * Return a single admin's strong auth unlock timeout or minimum value (strictest) of all 4566 * admins if who is null. 4567 * Returns 0 if not configured for the provided admin. 4568 */ 4569 @Override 4570 public long getRequiredStrongAuthTimeout(ComponentName who, int userId, boolean parent) { 4571 if (!mHasFeature) { 4572 return DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4573 } 4574 enforceFullCrossUsersPermission(userId); 4575 synchronized (this) { 4576 if (who != null) { 4577 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId, parent); 4578 return admin != null ? admin.strongAuthUnlockTimeout : 0; 4579 } 4580 4581 // Return the strictest policy across all participating admins. 4582 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userId, parent); 4583 4584 long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4585 for (int i = 0; i < admins.size(); i++) { 4586 final long timeout = admins.get(i).strongAuthUnlockTimeout; 4587 if (timeout != 0) { // take only participating admins into account 4588 strongAuthUnlockTimeout = Math.min(timeout, strongAuthUnlockTimeout); 4589 } 4590 } 4591 return Math.max(strongAuthUnlockTimeout, getMinimumStrongAuthTimeoutMs()); 4592 } 4593 } 4594 4595 private long getMinimumStrongAuthTimeoutMs() { 4596 if (!mInjector.isBuildDebuggable()) { 4597 return MINIMUM_STRONG_AUTH_TIMEOUT_MS; 4598 } 4599 // ideally the property was named persist.sys.min_strong_auth_timeout, but system property 4600 // name cannot be longer than 31 characters 4601 return Math.min(mInjector.systemPropertiesGetLong("persist.sys.min_str_auth_timeo", 4602 MINIMUM_STRONG_AUTH_TIMEOUT_MS), 4603 MINIMUM_STRONG_AUTH_TIMEOUT_MS); 4604 } 4605 4606 @Override 4607 public void lockNow(int flags, boolean parent) { 4608 if (!mHasFeature) { 4609 return; 4610 } 4611 4612 final int callingUserId = mInjector.userHandleGetCallingUserId(); 4613 synchronized (this) { 4614 // This API can only be called by an active device admin, 4615 // so try to retrieve it to check that the caller is one. 4616 final ActiveAdmin admin = getActiveAdminForCallerLocked( 4617 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4618 4619 final long ident = mInjector.binderClearCallingIdentity(); 4620 try { 4621 // Evict key 4622 if ((flags & DevicePolicyManager.FLAG_EVICT_CE_KEY) != 0) { 4623 enforceManagedProfile(callingUserId, "set FLAG_EVICT_CE_KEY"); 4624 if (!isProfileOwner(admin.info.getComponent(), callingUserId)) { 4625 throw new SecurityException( 4626 "Only profile owner admins can set FLAG_EVICT_CE_KEY"); 4627 } 4628 if (parent) { 4629 throw new IllegalArgumentException( 4630 "Cannot set FLAG_EVICT_CE_KEY for the parent"); 4631 } 4632 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 4633 throw new UnsupportedOperationException( 4634 "FLAG_EVICT_CE_KEY only applies to FBE devices"); 4635 } 4636 mUserManager.evictCredentialEncryptionKey(callingUserId); 4637 } 4638 4639 // Lock all users unless this is a managed profile with a separate challenge 4640 final int userToLock = (parent || !isSeparateProfileChallengeEnabled(callingUserId) 4641 ? UserHandle.USER_ALL : callingUserId); 4642 mLockPatternUtils.requireStrongAuth( 4643 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 4644 4645 // Require authentication for the device or profile 4646 if (userToLock == UserHandle.USER_ALL) { 4647 // Power off the display 4648 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 4649 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 4650 mInjector.getIWindowManager().lockNow(null); 4651 } else { 4652 mInjector.getTrustManager().setDeviceLockedForUser(userToLock, true); 4653 } 4654 } catch (RemoteException e) { 4655 } finally { 4656 mInjector.binderRestoreCallingIdentity(ident); 4657 } 4658 } 4659 } 4660 4661 @Override 4662 public void enforceCanManageCaCerts(ComponentName who, String callerPackage) { 4663 if (who == null) { 4664 if (!isCallerDelegate(callerPackage, DELEGATION_CERT_INSTALL)) { 4665 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 4666 } 4667 } else { 4668 enforceProfileOrDeviceOwner(who); 4669 } 4670 } 4671 4672 private void enforceProfileOrDeviceOwner(ComponentName who) { 4673 synchronized (this) { 4674 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4675 } 4676 } 4677 4678 @Override 4679 public boolean approveCaCert(String alias, int userId, boolean approval) { 4680 enforceManageUsers(); 4681 synchronized (this) { 4682 Set<String> certs = getUserData(userId).mAcceptedCaCertificates; 4683 boolean changed = (approval ? certs.add(alias) : certs.remove(alias)); 4684 if (!changed) { 4685 return false; 4686 } 4687 saveSettingsLocked(userId); 4688 } 4689 new MonitoringCertNotificationTask(this, mInjector).execute(userId); 4690 return true; 4691 } 4692 4693 @Override 4694 public boolean isCaCertApproved(String alias, int userId) { 4695 enforceManageUsers(); 4696 synchronized (this) { 4697 return getUserData(userId).mAcceptedCaCertificates.contains(alias); 4698 } 4699 } 4700 4701 private void removeCaApprovalsIfNeeded(int userId) { 4702 for (UserInfo userInfo : mUserManager.getProfiles(userId)) { 4703 boolean isSecure = mLockPatternUtils.isSecure(userInfo.id); 4704 if (userInfo.isManagedProfile()){ 4705 isSecure |= mLockPatternUtils.isSecure(getProfileParentId(userInfo.id)); 4706 } 4707 if (!isSecure) { 4708 synchronized (this) { 4709 getUserData(userInfo.id).mAcceptedCaCertificates.clear(); 4710 saveSettingsLocked(userInfo.id); 4711 } 4712 4713 new MonitoringCertNotificationTask(this, mInjector).execute(userInfo.id); 4714 } 4715 } 4716 } 4717 4718 @Override 4719 public boolean installCaCert(ComponentName admin, String callerPackage, byte[] certBuffer) 4720 throws RemoteException { 4721 enforceCanManageCaCerts(admin, callerPackage); 4722 4723 byte[] pemCert; 4724 try { 4725 X509Certificate cert = parseCert(certBuffer); 4726 pemCert = Credentials.convertToPem(cert); 4727 } catch (CertificateException ce) { 4728 Log.e(LOG_TAG, "Problem converting cert", ce); 4729 return false; 4730 } catch (IOException ioe) { 4731 Log.e(LOG_TAG, "Problem reading cert", ioe); 4732 return false; 4733 } 4734 4735 final UserHandle userHandle = UserHandle.of(mInjector.userHandleGetCallingUserId()); 4736 final long id = mInjector.binderClearCallingIdentity(); 4737 String alias = null; 4738 try { 4739 try (final KeyChainConnection keyChainConnection = mInjector.keyChainBindAsUser( 4740 userHandle)) { 4741 alias = keyChainConnection.getService().installCaCertificate(pemCert); 4742 } catch (RemoteException e) { 4743 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 4744 } 4745 } catch (InterruptedException e1) { 4746 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 4747 Thread.currentThread().interrupt(); 4748 } finally { 4749 mInjector.binderRestoreCallingIdentity(id); 4750 } 4751 if (alias == null) { 4752 Log.w(LOG_TAG, "Problem installing cert"); 4753 } else { 4754 synchronized (this) { 4755 final int userId = userHandle.getIdentifier(); 4756 getUserData(userId).mOwnerInstalledCaCerts.add(alias); 4757 saveSettingsLocked(userId); 4758 } 4759 return true; 4760 } 4761 return false; 4762 } 4763 4764 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 4765 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 4766 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 4767 certBuffer)); 4768 } 4769 4770 @Override 4771 public void uninstallCaCerts(ComponentName admin, String callerPackage, String[] aliases) { 4772 enforceCanManageCaCerts(admin, callerPackage); 4773 4774 final int userId = mInjector.userHandleGetCallingUserId(); 4775 final UserHandle userHandle = UserHandle.of(userId); 4776 final long id = mInjector.binderClearCallingIdentity(); 4777 try { 4778 try (final KeyChainConnection keyChainConnection = mInjector.keyChainBindAsUser( 4779 userHandle)) { 4780 for (int i = 0 ; i < aliases.length; i++) { 4781 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 4782 } 4783 } catch (RemoteException e) { 4784 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 4785 return; 4786 } 4787 } catch (InterruptedException ie) { 4788 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 4789 Thread.currentThread().interrupt(); 4790 return; 4791 } finally { 4792 mInjector.binderRestoreCallingIdentity(id); 4793 } 4794 synchronized (this) { 4795 if (getUserData(userId).mOwnerInstalledCaCerts.removeAll(Arrays.asList(aliases))) { 4796 saveSettingsLocked(userId); 4797 } 4798 } 4799 } 4800 4801 @Override 4802 public boolean installKeyPair(ComponentName who, String callerPackage, byte[] privKey, 4803 byte[] cert, byte[] chain, String alias, boolean requestAccess) { 4804 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 4805 DELEGATION_CERT_INSTALL); 4806 4807 4808 final int callingUid = mInjector.binderGetCallingUid(); 4809 final long id = mInjector.binderClearCallingIdentity(); 4810 try { 4811 final KeyChainConnection keyChainConnection = 4812 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 4813 try { 4814 IKeyChainService keyChain = keyChainConnection.getService(); 4815 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) { 4816 return false; 4817 } 4818 if (requestAccess) { 4819 keyChain.setGrant(callingUid, alias, true); 4820 } 4821 return true; 4822 } catch (RemoteException e) { 4823 Log.e(LOG_TAG, "Installing certificate", e); 4824 } finally { 4825 keyChainConnection.close(); 4826 } 4827 } catch (InterruptedException e) { 4828 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 4829 Thread.currentThread().interrupt(); 4830 } finally { 4831 mInjector.binderRestoreCallingIdentity(id); 4832 } 4833 return false; 4834 } 4835 4836 @Override 4837 public boolean removeKeyPair(ComponentName who, String callerPackage, String alias) { 4838 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 4839 DELEGATION_CERT_INSTALL); 4840 4841 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4842 final long id = Binder.clearCallingIdentity(); 4843 try { 4844 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4845 try { 4846 IKeyChainService keyChain = keyChainConnection.getService(); 4847 return keyChain.removeKeyPair(alias); 4848 } catch (RemoteException e) { 4849 Log.e(LOG_TAG, "Removing keypair", e); 4850 } finally { 4851 keyChainConnection.close(); 4852 } 4853 } catch (InterruptedException e) { 4854 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 4855 Thread.currentThread().interrupt(); 4856 } finally { 4857 Binder.restoreCallingIdentity(id); 4858 } 4859 return false; 4860 } 4861 4862 @Override 4863 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 4864 final IBinder response) { 4865 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 4866 if (!isCallerWithSystemUid()) { 4867 return; 4868 } 4869 4870 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 4871 // If there is a profile owner, redirect to that; otherwise query the device owner. 4872 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 4873 if (aliasChooser == null && caller.isSystem()) { 4874 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 4875 if (deviceOwnerAdmin != null) { 4876 aliasChooser = deviceOwnerAdmin.info.getComponent(); 4877 } 4878 } 4879 if (aliasChooser == null) { 4880 sendPrivateKeyAliasResponse(null, response); 4881 return; 4882 } 4883 4884 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 4885 intent.setComponent(aliasChooser); 4886 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 4887 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 4888 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 4889 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 4890 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4891 4892 final long id = mInjector.binderClearCallingIdentity(); 4893 try { 4894 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 4895 @Override 4896 public void onReceive(Context context, Intent intent) { 4897 final String chosenAlias = getResultData(); 4898 sendPrivateKeyAliasResponse(chosenAlias, response); 4899 } 4900 }, null, Activity.RESULT_OK, null, null); 4901 } finally { 4902 mInjector.binderRestoreCallingIdentity(id); 4903 } 4904 } 4905 4906 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 4907 final IKeyChainAliasCallback keyChainAliasResponse = 4908 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 4909 // Send the response. It's OK to do this from the main thread because IKeyChainAliasCallback 4910 // is oneway, which means it won't block if the recipient lives in another process. 4911 try { 4912 keyChainAliasResponse.alias(alias); 4913 } catch (Exception e) { 4914 // Caller could throw RuntimeException or RemoteException back across processes. Catch 4915 // everything just to be sure. 4916 Log.e(LOG_TAG, "error while responding to callback", e); 4917 } 4918 } 4919 4920 /** 4921 * Determine whether DPMS should check if a delegate package is already installed before 4922 * granting it new delegations via {@link #setDelegatedScopes}. 4923 */ 4924 private static boolean shouldCheckIfDelegatePackageIsInstalled(String delegatePackage, 4925 int targetSdk, List<String> scopes) { 4926 // 1) Never skip is installed check from N. 4927 if (targetSdk >= Build.VERSION_CODES.N) { 4928 return true; 4929 } 4930 // 2) Skip if DELEGATION_CERT_INSTALL is the only scope being given. 4931 if (scopes.size() == 1 && scopes.get(0).equals(DELEGATION_CERT_INSTALL)) { 4932 return false; 4933 } 4934 // 3) Skip if all previously granted scopes are being cleared. 4935 if (scopes.isEmpty()) { 4936 return false; 4937 } 4938 // Otherwise it should check that delegatePackage is installed. 4939 return true; 4940 } 4941 4942 /** 4943 * Set the scopes of a device owner or profile owner delegate. 4944 * 4945 * @param who the device owner or profile owner. 4946 * @param delegatePackage the name of the delegate package. 4947 * @param scopes the list of delegation scopes to be given to the delegate package. 4948 */ 4949 @Override 4950 public void setDelegatedScopes(ComponentName who, String delegatePackage, 4951 List<String> scopes) throws SecurityException { 4952 Preconditions.checkNotNull(who, "ComponentName is null"); 4953 Preconditions.checkStringNotEmpty(delegatePackage, "Delegate package is null or empty"); 4954 Preconditions.checkCollectionElementsNotNull(scopes, "Scopes"); 4955 // Remove possible duplicates. 4956 scopes = new ArrayList(new ArraySet(scopes)); 4957 // Ensure given scopes are valid. 4958 if (scopes.retainAll(Arrays.asList(DELEGATIONS))) { 4959 throw new IllegalArgumentException("Unexpected delegation scopes"); 4960 } 4961 4962 // Retrieve the user ID of the calling process. 4963 final int userId = mInjector.userHandleGetCallingUserId(); 4964 synchronized (this) { 4965 // Ensure calling process is device/profile owner. 4966 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4967 // Ensure the delegate is installed (skip this for DELEGATION_CERT_INSTALL in pre-N). 4968 if (shouldCheckIfDelegatePackageIsInstalled(delegatePackage, 4969 getTargetSdk(who.getPackageName(), userId), scopes)) { 4970 // Throw when the delegate package is not installed. 4971 if (!isPackageInstalledForUser(delegatePackage, userId)) { 4972 throw new IllegalArgumentException("Package " + delegatePackage 4973 + " is not installed on the current user"); 4974 } 4975 } 4976 4977 // Set the new delegate in user policies. 4978 final DevicePolicyData policy = getUserData(userId); 4979 if (!scopes.isEmpty()) { 4980 policy.mDelegationMap.put(delegatePackage, new ArrayList<>(scopes)); 4981 } else { 4982 // Remove any delegation info if the given scopes list is empty. 4983 policy.mDelegationMap.remove(delegatePackage); 4984 } 4985 4986 // Notify delegate package of updates. 4987 final Intent intent = new Intent( 4988 DevicePolicyManager.ACTION_APPLICATION_DELEGATION_SCOPES_CHANGED); 4989 // Only call receivers registered with Context#registerReceiver (don’t wake delegate). 4990 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 4991 // Limit components this intent resolves to to the delegate package. 4992 intent.setPackage(delegatePackage); 4993 // Include the list of delegated scopes as an extra. 4994 intent.putStringArrayListExtra(DevicePolicyManager.EXTRA_DELEGATION_SCOPES, 4995 (ArrayList<String>) scopes); 4996 // Send the broadcast. 4997 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 4998 4999 // Persist updates. 5000 saveSettingsLocked(userId); 5001 } 5002 } 5003 5004 /** 5005 * Get the delegation scopes given to a delegate package by a device owner or profile owner. 5006 * 5007 * A DO/PO can get the scopes of any package. A non DO/PO package can get its own scopes by 5008 * passing in {@code null} as the {@code who} parameter and its own name as the 5009 * {@code delegatepackage}. 5010 * 5011 * @param who the device owner or profile owner, or {@code null} if the caller is 5012 * {@code delegatePackage}. 5013 * @param delegatePackage the name of the delegate package whose scopes are to be retrieved. 5014 * @return a list of the delegation scopes currently given to {@code delegatePackage}. 5015 */ 5016 @Override 5017 @NonNull 5018 public List<String> getDelegatedScopes(ComponentName who, 5019 String delegatePackage) throws SecurityException { 5020 Preconditions.checkNotNull(delegatePackage, "Delegate package is null"); 5021 5022 // Retrieve the user ID of the calling process. 5023 final int callingUid = mInjector.binderGetCallingUid(); 5024 final int userId = UserHandle.getUserId(callingUid); 5025 synchronized (this) { 5026 // Ensure calling process is device/profile owner. 5027 if (who != null) { 5028 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5029 // Or ensure calling process is delegatePackage itself. 5030 } else { 5031 int uid = 0; 5032 try { 5033 uid = mInjector.getPackageManager() 5034 .getPackageUidAsUser(delegatePackage, userId); 5035 } catch(NameNotFoundException e) { 5036 } 5037 if (uid != callingUid) { 5038 throw new SecurityException("Caller with uid " + callingUid + " is not " 5039 + delegatePackage); 5040 } 5041 } 5042 final DevicePolicyData policy = getUserData(userId); 5043 // Retrieve the scopes assigned to delegatePackage, or null if no scope was given. 5044 final List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5045 return scopes == null ? Collections.EMPTY_LIST : scopes; 5046 } 5047 } 5048 5049 /** 5050 * Get a list of packages that were given a specific delegation scopes by a device owner or 5051 * profile owner. 5052 * 5053 * @param who the device owner or profile owner. 5054 * @param scope the scope whose delegates are to be retrieved. 5055 * @return a list of the delegate packages currently given the {@code scope} delegation. 5056 */ 5057 @NonNull 5058 public List<String> getDelegatePackages(ComponentName who, String scope) 5059 throws SecurityException { 5060 Preconditions.checkNotNull(who, "ComponentName is null"); 5061 Preconditions.checkNotNull(scope, "Scope is null"); 5062 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5063 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5064 } 5065 5066 // Retrieve the user ID of the calling process. 5067 final int userId = mInjector.userHandleGetCallingUserId(); 5068 synchronized (this) { 5069 // Ensure calling process is device/profile owner. 5070 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5071 final DevicePolicyData policy = getUserData(userId); 5072 5073 // Create a list to hold the resulting delegate packages. 5074 final List<String> delegatePackagesWithScope = new ArrayList<>(); 5075 // Add all delegations containing scope to the result list. 5076 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5077 if (policy.mDelegationMap.valueAt(i).contains(scope)) { 5078 delegatePackagesWithScope.add(policy.mDelegationMap.keyAt(i)); 5079 } 5080 } 5081 return delegatePackagesWithScope; 5082 } 5083 } 5084 5085 /** 5086 * Check whether a caller application has been delegated a given scope via 5087 * {@link #setDelegatedScopes} to access privileged APIs on the behalf of a profile owner or 5088 * device owner. 5089 * <p> 5090 * This is done by checking that {@code callerPackage} was granted {@code scope} delegation and 5091 * then comparing the calling UID with the UID of {@code callerPackage} as reported by 5092 * {@link PackageManager#getPackageUidAsUser}. 5093 * 5094 * @param callerPackage the name of the package that is trying to invoke a function in the DPMS. 5095 * @param scope the delegation scope to be checked. 5096 * @return {@code true} if the calling process is a delegate of {@code scope}. 5097 */ 5098 private boolean isCallerDelegate(String callerPackage, String scope) { 5099 Preconditions.checkNotNull(callerPackage, "callerPackage is null"); 5100 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5101 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5102 } 5103 5104 // Retrieve the UID and user ID of the calling process. 5105 final int callingUid = mInjector.binderGetCallingUid(); 5106 final int userId = UserHandle.getUserId(callingUid); 5107 synchronized (this) { 5108 // Retrieve user policy data. 5109 final DevicePolicyData policy = getUserData(userId); 5110 // Retrieve the list of delegation scopes granted to callerPackage. 5111 final List<String> scopes = policy.mDelegationMap.get(callerPackage); 5112 // Check callingUid only if callerPackage has the required scope delegation. 5113 if (scopes != null && scopes.contains(scope)) { 5114 try { 5115 // Retrieve the expected UID for callerPackage. 5116 final int uid = mInjector.getPackageManager() 5117 .getPackageUidAsUser(callerPackage, userId); 5118 // Return true if the caller is actually callerPackage. 5119 return uid == callingUid; 5120 } catch (NameNotFoundException e) { 5121 // Ignore. 5122 } 5123 } 5124 return false; 5125 } 5126 } 5127 5128 /** 5129 * Throw a security exception if a ComponentName is given and it is not a device/profile owner 5130 * or if the calling process is not a delegate of the given scope. 5131 * 5132 * @param who the device owner of profile owner, or null if {@code callerPackage} is a 5133 * {@code scope} delegate. 5134 * @param callerPackage the name of the calling package. Required if {@code who} is 5135 * {@code null}. 5136 * @param reqPolicy the policy used in the API whose access permission is being checked. 5137 * @param scoppe the delegation scope corresponding to the API being checked. 5138 * @throws SecurityException if {@code who} is given and is not an owner for {@code reqPolicy}; 5139 * or when {@code who} is {@code null} and {@code callerPackage} is not a delegate 5140 * of {@code scope}. 5141 */ 5142 private void enforceCanManageScope(ComponentName who, String callerPackage, int reqPolicy, 5143 String scope) { 5144 // If a ComponentName is given ensure it is a device or profile owner according to policy. 5145 if (who != null) { 5146 synchronized (this) { 5147 getActiveAdminForCallerLocked(who, reqPolicy); 5148 } 5149 // If no ComponentName is given ensure calling process has scope delegation. 5150 } else if (!isCallerDelegate(callerPackage, scope)) { 5151 throw new SecurityException("Caller with uid " + mInjector.binderGetCallingUid() 5152 + " is not a delegate of scope " + scope + "."); 5153 } 5154 } 5155 5156 /** 5157 * Helper function to preserve delegation behavior pre-O when using the deprecated functions 5158 * {@code #setCertInstallerPackage} and {@code #setApplicationRestrictionsManagingPackage}. 5159 */ 5160 private void setDelegatedScopePreO(ComponentName who, 5161 String delegatePackage, String scope) { 5162 Preconditions.checkNotNull(who, "ComponentName is null"); 5163 5164 final int userId = mInjector.userHandleGetCallingUserId(); 5165 synchronized(this) { 5166 // Ensure calling process is device/profile owner. 5167 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5168 final DevicePolicyData policy = getUserData(userId); 5169 5170 if (delegatePackage != null) { 5171 // Set package as a delegate for scope if it is not already one. 5172 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5173 if (scopes == null) { 5174 scopes = new ArrayList<>(); 5175 } 5176 if (!scopes.contains(scope)) { 5177 scopes.add(scope); 5178 setDelegatedScopes(who, delegatePackage, scopes); 5179 } 5180 } 5181 5182 // Clear any existing scope delegates. 5183 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5184 final String currentPackage = policy.mDelegationMap.keyAt(i); 5185 final List<String> currentScopes = policy.mDelegationMap.valueAt(i); 5186 5187 if (!currentPackage.equals(delegatePackage) && currentScopes.contains(scope)) { 5188 final List<String> newScopes = new ArrayList(currentScopes); 5189 newScopes.remove(scope); 5190 setDelegatedScopes(who, currentPackage, newScopes); 5191 } 5192 } 5193 } 5194 } 5195 5196 @Override 5197 public void setCertInstallerPackage(ComponentName who, String installerPackage) 5198 throws SecurityException { 5199 setDelegatedScopePreO(who, installerPackage, DELEGATION_CERT_INSTALL); 5200 } 5201 5202 @Override 5203 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 5204 final List<String> delegatePackages = getDelegatePackages(who, DELEGATION_CERT_INSTALL); 5205 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 5206 } 5207 5208 /** 5209 * @return {@code true} if the package is installed and set as always-on, {@code false} if it is 5210 * not installed and therefore not available. 5211 * 5212 * @throws SecurityException if the caller is not a profile or device owner. 5213 * @throws UnsupportedOperationException if the package does not support being set as always-on. 5214 */ 5215 @Override 5216 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage, boolean lockdown) 5217 throws SecurityException { 5218 enforceProfileOrDeviceOwner(admin); 5219 5220 final int userId = mInjector.userHandleGetCallingUserId(); 5221 final long token = mInjector.binderClearCallingIdentity(); 5222 try { 5223 if (vpnPackage != null && !isPackageInstalledForUser(vpnPackage, userId)) { 5224 return false; 5225 } 5226 ConnectivityManager connectivityManager = (ConnectivityManager) 5227 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5228 if (!connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage, lockdown)) { 5229 throw new UnsupportedOperationException(); 5230 } 5231 } finally { 5232 mInjector.binderRestoreCallingIdentity(token); 5233 } 5234 return true; 5235 } 5236 5237 @Override 5238 public String getAlwaysOnVpnPackage(ComponentName admin) 5239 throws SecurityException { 5240 enforceProfileOrDeviceOwner(admin); 5241 5242 final int userId = mInjector.userHandleGetCallingUserId(); 5243 final long token = mInjector.binderClearCallingIdentity(); 5244 try{ 5245 ConnectivityManager connectivityManager = (ConnectivityManager) 5246 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5247 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 5248 } finally { 5249 mInjector.binderRestoreCallingIdentity(token); 5250 } 5251 } 5252 5253 private void forceWipeDeviceNoLock(boolean wipeExtRequested, String reason) { 5254 wtfIfInLock(); 5255 5256 if (wipeExtRequested) { 5257 StorageManager sm = (StorageManager) mContext.getSystemService( 5258 Context.STORAGE_SERVICE); 5259 sm.wipeAdoptableDisks(); 5260 } 5261 try { 5262 mInjector.recoverySystemRebootWipeUserData( 5263 /*shutdown=*/ false, reason, /*force=*/ true); 5264 } catch (IOException | SecurityException e) { 5265 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 5266 } 5267 } 5268 5269 private void forceWipeUser(int userId) { 5270 try { 5271 IActivityManager am = mInjector.getIActivityManager(); 5272 if (am.getCurrentUser().id == userId) { 5273 am.switchUser(UserHandle.USER_SYSTEM); 5274 } 5275 5276 boolean userRemoved = mUserManagerInternal.removeUserEvenWhenDisallowed(userId); 5277 if (!userRemoved) { 5278 Slog.w(LOG_TAG, "Couldn't remove user " + userId); 5279 } else if (isManagedProfile(userId)) { 5280 sendWipeProfileNotification(); 5281 } 5282 } catch (RemoteException re) { 5283 // Shouldn't happen 5284 } 5285 } 5286 5287 @Override 5288 public void wipeData(int flags) { 5289 if (!mHasFeature) { 5290 return; 5291 } 5292 enforceFullCrossUsersPermission(mInjector.userHandleGetCallingUserId()); 5293 5294 final ActiveAdmin admin; 5295 synchronized (this) { 5296 admin = getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_WIPE_DATA); 5297 } 5298 String reason = "DevicePolicyManager.wipeData() from " 5299 + admin.info.getComponent().flattenToShortString(); 5300 wipeDataNoLock( 5301 admin.info.getComponent(), flags, reason, admin.getUserHandle().getIdentifier()); 5302 } 5303 5304 private void wipeDataNoLock(ComponentName admin, int flags, String reason, int userId) { 5305 wtfIfInLock(); 5306 5307 long ident = mInjector.binderClearCallingIdentity(); 5308 try { 5309 // First check whether the admin is allowed to wipe the device/user/profile. 5310 final String restriction; 5311 if (userId == UserHandle.USER_SYSTEM) { 5312 restriction = UserManager.DISALLOW_FACTORY_RESET; 5313 } else if (isManagedProfile(userId)) { 5314 restriction = UserManager.DISALLOW_REMOVE_MANAGED_PROFILE; 5315 } else { 5316 restriction = UserManager.DISALLOW_REMOVE_USER; 5317 } 5318 if (isAdminAffectedByRestriction(admin, restriction, userId)) { 5319 throw new SecurityException("Cannot wipe data. " + restriction 5320 + " restriction is set for user " + userId); 5321 } 5322 5323 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 5324 if (!isDeviceOwner(admin, userId)) { 5325 throw new SecurityException( 5326 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 5327 } 5328 PersistentDataBlockManager manager = (PersistentDataBlockManager) 5329 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 5330 if (manager != null) { 5331 manager.wipe(); 5332 } 5333 } 5334 5335 // TODO If split user is enabled and the device owner is set in the primary user 5336 // (rather than system), we should probably trigger factory reset. Current code just 5337 // removes that user (but still clears FRP...) 5338 if (userId == UserHandle.USER_SYSTEM) { 5339 forceWipeDeviceNoLock(/*wipeExtRequested=*/ (flags & WIPE_EXTERNAL_STORAGE) != 0, 5340 reason); 5341 } else { 5342 forceWipeUser(userId); 5343 } 5344 } finally { 5345 mInjector.binderRestoreCallingIdentity(ident); 5346 } 5347 } 5348 5349 private void sendWipeProfileNotification() { 5350 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 5351 Notification notification = 5352 new Notification.Builder(mContext, SystemNotificationChannels.DEVICE_ADMIN) 5353 .setSmallIcon(android.R.drawable.stat_sys_warning) 5354 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 5355 .setContentText(contentText) 5356 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 5357 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 5358 .build(); 5359 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 5360 } 5361 5362 private void clearWipeProfileNotification() { 5363 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 5364 } 5365 5366 @Override 5367 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 5368 if (!mHasFeature) { 5369 return; 5370 } 5371 enforceFullCrossUsersPermission(userHandle); 5372 mContext.enforceCallingOrSelfPermission( 5373 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5374 5375 synchronized (this) { 5376 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 5377 if (admin == null) { 5378 result.sendResult(null); 5379 return; 5380 } 5381 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 5382 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 5383 intent.setComponent(admin.info.getComponent()); 5384 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 5385 null, new BroadcastReceiver() { 5386 @Override 5387 public void onReceive(Context context, Intent intent) { 5388 result.sendResult(getResultExtras(false)); 5389 } 5390 }, null, Activity.RESULT_OK, null, null); 5391 } 5392 } 5393 5394 @Override 5395 public void setActivePasswordState(PasswordMetrics metrics, int userHandle) { 5396 if (!mHasFeature) { 5397 return; 5398 } 5399 enforceFullCrossUsersPermission(userHandle); 5400 mContext.enforceCallingOrSelfPermission( 5401 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5402 5403 // If the managed profile doesn't have a separate password, set the metrics to default 5404 if (isManagedProfile(userHandle) && !isSeparateProfileChallengeEnabled(userHandle)) { 5405 metrics = new PasswordMetrics(); 5406 } 5407 5408 validateQualityConstant(metrics.quality); 5409 DevicePolicyData policy = getUserData(userHandle); 5410 synchronized (this) { 5411 policy.mActivePasswordMetrics = metrics; 5412 } 5413 } 5414 5415 @Override 5416 public void reportPasswordChanged(@UserIdInt int userId) { 5417 if (!mHasFeature) { 5418 return; 5419 } 5420 enforceFullCrossUsersPermission(userId); 5421 5422 // Managed Profile password can only be changed when it has a separate challenge. 5423 if (!isSeparateProfileChallengeEnabled(userId)) { 5424 enforceNotManagedProfile(userId, "set the active password"); 5425 } 5426 5427 mContext.enforceCallingOrSelfPermission( 5428 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5429 5430 DevicePolicyData policy = getUserData(userId); 5431 5432 long ident = mInjector.binderClearCallingIdentity(); 5433 try { 5434 synchronized (this) { 5435 policy.mFailedPasswordAttempts = 0; 5436 saveSettingsLocked(userId); 5437 updatePasswordExpirationsLocked(userId); 5438 setExpirationAlarmCheckLocked(mContext, userId, /* parent */ false); 5439 5440 // Send a broadcast to each profile using this password as its primary unlock. 5441 sendAdminCommandForLockscreenPoliciesLocked( 5442 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 5443 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userId); 5444 } 5445 removeCaApprovalsIfNeeded(userId); 5446 } finally { 5447 mInjector.binderRestoreCallingIdentity(ident); 5448 } 5449 } 5450 5451 /** 5452 * Called any time the device password is updated. Resets all password expiration clocks. 5453 */ 5454 private void updatePasswordExpirationsLocked(int userHandle) { 5455 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 5456 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 5457 userHandle, /* parent */ false); 5458 final int N = admins.size(); 5459 for (int i = 0; i < N; i++) { 5460 ActiveAdmin admin = admins.get(i); 5461 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 5462 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 5463 long timeout = admin.passwordExpirationTimeout; 5464 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 5465 admin.passwordExpirationDate = expiration; 5466 } 5467 } 5468 for (int affectedUserId : affectedUserIds) { 5469 saveSettingsLocked(affectedUserId); 5470 } 5471 } 5472 5473 @Override 5474 public void reportFailedPasswordAttempt(int userHandle) { 5475 enforceFullCrossUsersPermission(userHandle); 5476 if (!isSeparateProfileChallengeEnabled(userHandle)) { 5477 enforceNotManagedProfile(userHandle, 5478 "report failed password attempt if separate profile challenge is not in place"); 5479 } 5480 mContext.enforceCallingOrSelfPermission( 5481 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5482 5483 boolean wipeData = false; 5484 ActiveAdmin strictestAdmin = null; 5485 final long ident = mInjector.binderClearCallingIdentity(); 5486 try { 5487 synchronized (this) { 5488 DevicePolicyData policy = getUserData(userHandle); 5489 policy.mFailedPasswordAttempts++; 5490 saveSettingsLocked(userHandle); 5491 if (mHasFeature) { 5492 strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 5493 userHandle, /* parent */ false); 5494 int max = strictestAdmin != null 5495 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 5496 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 5497 wipeData = true; 5498 } 5499 5500 sendAdminCommandForLockscreenPoliciesLocked( 5501 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 5502 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 5503 } 5504 } 5505 } finally { 5506 mInjector.binderRestoreCallingIdentity(ident); 5507 } 5508 5509 if (wipeData && strictestAdmin != null) { 5510 final int userId = strictestAdmin.getUserHandle().getIdentifier(); 5511 Slog.i(LOG_TAG, "Max failed password attempts policy reached for admin: " 5512 + strictestAdmin.info.getComponent().flattenToShortString() 5513 + ". Calling wipeData for user " + userId); 5514 5515 // Attempt to wipe the device/user/profile associated with the admin, as if the 5516 // admin had called wipeData(). That way we can check whether the admin is actually 5517 // allowed to wipe the device (e.g. a regular device admin shouldn't be able to wipe the 5518 // device if the device owner has set DISALLOW_FACTORY_RESET, but the DO should be 5519 // able to do so). 5520 // IMPORTANT: Call without holding the lock to prevent deadlock. 5521 try { 5522 wipeDataNoLock(strictestAdmin.info.getComponent(), 5523 /*flags=*/ 0, 5524 /*reason=*/ "reportFailedPasswordAttempt()", 5525 userId); 5526 } catch (SecurityException e) { 5527 Slog.w(LOG_TAG, "Failed to wipe user " + userId 5528 + " after max failed password attempts reached.", e); 5529 } 5530 } 5531 5532 if (mInjector.securityLogIsLoggingEnabled()) { 5533 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 5534 /*method strength*/ 1); 5535 } 5536 } 5537 5538 @Override 5539 public void reportSuccessfulPasswordAttempt(int userHandle) { 5540 enforceFullCrossUsersPermission(userHandle); 5541 mContext.enforceCallingOrSelfPermission( 5542 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5543 5544 synchronized (this) { 5545 DevicePolicyData policy = getUserData(userHandle); 5546 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 5547 long ident = mInjector.binderClearCallingIdentity(); 5548 try { 5549 policy.mFailedPasswordAttempts = 0; 5550 policy.mPasswordOwner = -1; 5551 saveSettingsLocked(userHandle); 5552 if (mHasFeature) { 5553 sendAdminCommandForLockscreenPoliciesLocked( 5554 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 5555 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 5556 } 5557 } finally { 5558 mInjector.binderRestoreCallingIdentity(ident); 5559 } 5560 } 5561 } 5562 5563 if (mInjector.securityLogIsLoggingEnabled()) { 5564 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5565 /*method strength*/ 1); 5566 } 5567 } 5568 5569 @Override 5570 public void reportFailedFingerprintAttempt(int userHandle) { 5571 enforceFullCrossUsersPermission(userHandle); 5572 mContext.enforceCallingOrSelfPermission( 5573 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5574 if (mInjector.securityLogIsLoggingEnabled()) { 5575 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 5576 /*method strength*/ 0); 5577 } 5578 } 5579 5580 @Override 5581 public void reportSuccessfulFingerprintAttempt(int userHandle) { 5582 enforceFullCrossUsersPermission(userHandle); 5583 mContext.enforceCallingOrSelfPermission( 5584 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5585 if (mInjector.securityLogIsLoggingEnabled()) { 5586 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5587 /*method strength*/ 0); 5588 } 5589 } 5590 5591 @Override 5592 public void reportKeyguardDismissed(int userHandle) { 5593 enforceFullCrossUsersPermission(userHandle); 5594 mContext.enforceCallingOrSelfPermission( 5595 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5596 5597 if (mInjector.securityLogIsLoggingEnabled()) { 5598 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 5599 } 5600 } 5601 5602 @Override 5603 public void reportKeyguardSecured(int userHandle) { 5604 enforceFullCrossUsersPermission(userHandle); 5605 mContext.enforceCallingOrSelfPermission( 5606 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5607 5608 if (mInjector.securityLogIsLoggingEnabled()) { 5609 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 5610 } 5611 } 5612 5613 @Override 5614 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 5615 String exclusionList) { 5616 if (!mHasFeature) { 5617 return null; 5618 } 5619 synchronized(this) { 5620 Preconditions.checkNotNull(who, "ComponentName is null"); 5621 5622 // Only check if system user has set global proxy. We don't allow other users to set it. 5623 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5624 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5625 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 5626 5627 // Scan through active admins and find if anyone has already 5628 // set the global proxy. 5629 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 5630 for (ComponentName component : compSet) { 5631 ActiveAdmin ap = policy.mAdminMap.get(component); 5632 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 5633 // Another admin already sets the global proxy 5634 // Return it to the caller. 5635 return component; 5636 } 5637 } 5638 5639 // If the user is not system, don't set the global proxy. Fail silently. 5640 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 5641 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 5642 + UserHandle.getCallingUserId() + " is not permitted."); 5643 return null; 5644 } 5645 if (proxySpec == null) { 5646 admin.specifiesGlobalProxy = false; 5647 admin.globalProxySpec = null; 5648 admin.globalProxyExclusionList = null; 5649 } else { 5650 5651 admin.specifiesGlobalProxy = true; 5652 admin.globalProxySpec = proxySpec; 5653 admin.globalProxyExclusionList = exclusionList; 5654 } 5655 5656 // Reset the global proxy accordingly 5657 // Do this using system permissions, as apps cannot write to secure settings 5658 long origId = mInjector.binderClearCallingIdentity(); 5659 try { 5660 resetGlobalProxyLocked(policy); 5661 } finally { 5662 mInjector.binderRestoreCallingIdentity(origId); 5663 } 5664 return null; 5665 } 5666 } 5667 5668 @Override 5669 public ComponentName getGlobalProxyAdmin(int userHandle) { 5670 if (!mHasFeature) { 5671 return null; 5672 } 5673 enforceFullCrossUsersPermission(userHandle); 5674 synchronized(this) { 5675 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5676 // Scan through active admins and find if anyone has already 5677 // set the global proxy. 5678 final int N = policy.mAdminList.size(); 5679 for (int i = 0; i < N; i++) { 5680 ActiveAdmin ap = policy.mAdminList.get(i); 5681 if (ap.specifiesGlobalProxy) { 5682 // Device admin sets the global proxy 5683 // Return it to the caller. 5684 return ap.info.getComponent(); 5685 } 5686 } 5687 } 5688 // No device admin sets the global proxy. 5689 return null; 5690 } 5691 5692 @Override 5693 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 5694 synchronized (this) { 5695 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5696 } 5697 long token = mInjector.binderClearCallingIdentity(); 5698 try { 5699 ConnectivityManager connectivityManager = (ConnectivityManager) 5700 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5701 connectivityManager.setGlobalProxy(proxyInfo); 5702 } finally { 5703 mInjector.binderRestoreCallingIdentity(token); 5704 } 5705 } 5706 5707 private void resetGlobalProxyLocked(DevicePolicyData policy) { 5708 final int N = policy.mAdminList.size(); 5709 for (int i = 0; i < N; i++) { 5710 ActiveAdmin ap = policy.mAdminList.get(i); 5711 if (ap.specifiesGlobalProxy) { 5712 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 5713 return; 5714 } 5715 } 5716 // No device admins defining global proxies - reset global proxy settings to none 5717 saveGlobalProxyLocked(null, null); 5718 } 5719 5720 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 5721 if (exclusionList == null) { 5722 exclusionList = ""; 5723 } 5724 if (proxySpec == null) { 5725 proxySpec = ""; 5726 } 5727 // Remove white spaces 5728 proxySpec = proxySpec.trim(); 5729 String data[] = proxySpec.split(":"); 5730 int proxyPort = 8080; 5731 if (data.length > 1) { 5732 try { 5733 proxyPort = Integer.parseInt(data[1]); 5734 } catch (NumberFormatException e) {} 5735 } 5736 exclusionList = exclusionList.trim(); 5737 5738 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 5739 if (!proxyProperties.isValid()) { 5740 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 5741 return; 5742 } 5743 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 5744 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 5745 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 5746 exclusionList); 5747 } 5748 5749 /** 5750 * Set the storage encryption request for a single admin. Returns the new total request 5751 * status (for all admins). 5752 */ 5753 @Override 5754 public int setStorageEncryption(ComponentName who, boolean encrypt) { 5755 if (!mHasFeature) { 5756 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5757 } 5758 Preconditions.checkNotNull(who, "ComponentName is null"); 5759 final int userHandle = UserHandle.getCallingUserId(); 5760 synchronized (this) { 5761 // Check for permissions 5762 // Only system user can set storage encryption 5763 if (userHandle != UserHandle.USER_SYSTEM) { 5764 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 5765 + UserHandle.getCallingUserId() + " is not permitted."); 5766 return 0; 5767 } 5768 5769 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5770 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 5771 5772 // Quick exit: If the filesystem does not support encryption, we can exit early. 5773 if (!isEncryptionSupported()) { 5774 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5775 } 5776 5777 // (1) Record the value for the admin so it's sticky 5778 if (ap.encryptionRequested != encrypt) { 5779 ap.encryptionRequested = encrypt; 5780 saveSettingsLocked(userHandle); 5781 } 5782 5783 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5784 // (2) Compute "max" for all admins 5785 boolean newRequested = false; 5786 final int N = policy.mAdminList.size(); 5787 for (int i = 0; i < N; i++) { 5788 newRequested |= policy.mAdminList.get(i).encryptionRequested; 5789 } 5790 5791 // Notify OS of new request 5792 setEncryptionRequested(newRequested); 5793 5794 // Return the new global request status 5795 return newRequested 5796 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 5797 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5798 } 5799 } 5800 5801 /** 5802 * Get the current storage encryption request status for a given admin, or aggregate of all 5803 * active admins. 5804 */ 5805 @Override 5806 public boolean getStorageEncryption(ComponentName who, int userHandle) { 5807 if (!mHasFeature) { 5808 return false; 5809 } 5810 enforceFullCrossUsersPermission(userHandle); 5811 synchronized (this) { 5812 // Check for permissions if a particular caller is specified 5813 if (who != null) { 5814 // When checking for a single caller, status is based on caller's request 5815 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 5816 return ap != null ? ap.encryptionRequested : false; 5817 } 5818 5819 // If no particular caller is specified, return the aggregate set of requests. 5820 // This is short circuited by returning true on the first hit. 5821 DevicePolicyData policy = getUserData(userHandle); 5822 final int N = policy.mAdminList.size(); 5823 for (int i = 0; i < N; i++) { 5824 if (policy.mAdminList.get(i).encryptionRequested) { 5825 return true; 5826 } 5827 } 5828 return false; 5829 } 5830 } 5831 5832 /** 5833 * Get the current encryption status of the device. 5834 */ 5835 @Override 5836 public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) { 5837 if (!mHasFeature) { 5838 // Ok to return current status. 5839 } 5840 enforceFullCrossUsersPermission(userHandle); 5841 5842 // It's not critical here, but let's make sure the package name is correct, in case 5843 // we start using it for different purposes. 5844 ensureCallerPackage(callerPackage); 5845 5846 final ApplicationInfo ai; 5847 try { 5848 ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle); 5849 } catch (RemoteException e) { 5850 throw new SecurityException(e); 5851 } 5852 5853 boolean legacyApp = false; 5854 if (ai.targetSdkVersion <= Build.VERSION_CODES.M) { 5855 legacyApp = true; 5856 } 5857 5858 final int rawStatus = getEncryptionStatus(); 5859 if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) { 5860 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5861 } 5862 return rawStatus; 5863 } 5864 5865 /** 5866 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 5867 */ 5868 private boolean isEncryptionSupported() { 5869 // Note, this can be implemented as 5870 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5871 // But is provided as a separate internal method if there's a faster way to do a 5872 // simple check for supported-or-not. 5873 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5874 } 5875 5876 /** 5877 * Hook to low-levels: Reporting the current status of encryption. 5878 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 5879 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 5880 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, 5881 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or 5882 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 5883 */ 5884 private int getEncryptionStatus() { 5885 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 5886 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER; 5887 } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) { 5888 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5889 } else if (mInjector.storageManagerIsEncrypted()) { 5890 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 5891 } else if (mInjector.storageManagerIsEncryptable()) { 5892 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5893 } else { 5894 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5895 } 5896 } 5897 5898 /** 5899 * Hook to low-levels: If needed, record the new admin setting for encryption. 5900 */ 5901 private void setEncryptionRequested(boolean encrypt) { 5902 } 5903 5904 /** 5905 * Set whether the screen capture is disabled for the user managed by the specified admin. 5906 */ 5907 @Override 5908 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 5909 if (!mHasFeature) { 5910 return; 5911 } 5912 Preconditions.checkNotNull(who, "ComponentName is null"); 5913 final int userHandle = UserHandle.getCallingUserId(); 5914 synchronized (this) { 5915 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5916 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5917 if (ap.disableScreenCapture != disabled) { 5918 ap.disableScreenCapture = disabled; 5919 saveSettingsLocked(userHandle); 5920 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 5921 } 5922 } 5923 } 5924 5925 /** 5926 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 5927 * active admin (if given admin is null). 5928 */ 5929 @Override 5930 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 5931 if (!mHasFeature) { 5932 return false; 5933 } 5934 synchronized (this) { 5935 if (who != null) { 5936 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5937 return (admin != null) ? admin.disableScreenCapture : false; 5938 } 5939 5940 DevicePolicyData policy = getUserData(userHandle); 5941 final int N = policy.mAdminList.size(); 5942 for (int i = 0; i < N; i++) { 5943 ActiveAdmin admin = policy.mAdminList.get(i); 5944 if (admin.disableScreenCapture) { 5945 return true; 5946 } 5947 } 5948 return false; 5949 } 5950 } 5951 5952 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 5953 final boolean disabled) { 5954 mHandler.post(new Runnable() { 5955 @Override 5956 public void run() { 5957 try { 5958 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 5959 } catch (RemoteException e) { 5960 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 5961 } 5962 } 5963 }); 5964 } 5965 5966 /** 5967 * Set whether auto time is required by the specified admin (must be device or profile owner). 5968 */ 5969 @Override 5970 public void setAutoTimeRequired(ComponentName who, boolean required) { 5971 if (!mHasFeature) { 5972 return; 5973 } 5974 Preconditions.checkNotNull(who, "ComponentName is null"); 5975 final int userHandle = UserHandle.getCallingUserId(); 5976 synchronized (this) { 5977 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5978 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5979 if (admin.requireAutoTime != required) { 5980 admin.requireAutoTime = required; 5981 saveSettingsLocked(userHandle); 5982 } 5983 } 5984 5985 // Turn AUTO_TIME on in settings if it is required 5986 if (required) { 5987 long ident = mInjector.binderClearCallingIdentity(); 5988 try { 5989 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 5990 } finally { 5991 mInjector.binderRestoreCallingIdentity(ident); 5992 } 5993 } 5994 } 5995 5996 /** 5997 * Returns whether or not auto time is required by the device owner or any profile owner. 5998 */ 5999 @Override 6000 public boolean getAutoTimeRequired() { 6001 if (!mHasFeature) { 6002 return false; 6003 } 6004 synchronized (this) { 6005 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6006 if (deviceOwner != null && deviceOwner.requireAutoTime) { 6007 // If the device owner enforces auto time, we don't need to check the PO's 6008 return true; 6009 } 6010 6011 // Now check to see if any profile owner on any user enforces auto time 6012 for (Integer userId : mOwners.getProfileOwnerKeys()) { 6013 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 6014 if (profileOwner != null && profileOwner.requireAutoTime) { 6015 return true; 6016 } 6017 } 6018 6019 return false; 6020 } 6021 } 6022 6023 @Override 6024 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 6025 if (!mHasFeature) { 6026 return; 6027 } 6028 Preconditions.checkNotNull(who, "ComponentName is null"); 6029 // Allow setting this policy to true only if there is a split system user. 6030 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 6031 throw new UnsupportedOperationException( 6032 "Cannot force ephemeral users on systems without split system user."); 6033 } 6034 boolean removeAllUsers = false; 6035 synchronized (this) { 6036 final ActiveAdmin deviceOwner = 6037 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6038 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 6039 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 6040 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 6041 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 6042 removeAllUsers = forceEphemeralUsers; 6043 } 6044 } 6045 if (removeAllUsers) { 6046 long identitity = mInjector.binderClearCallingIdentity(); 6047 try { 6048 mUserManagerInternal.removeAllUsers(); 6049 } finally { 6050 mInjector.binderRestoreCallingIdentity(identitity); 6051 } 6052 } 6053 } 6054 6055 @Override 6056 public boolean getForceEphemeralUsers(ComponentName who) { 6057 if (!mHasFeature) { 6058 return false; 6059 } 6060 Preconditions.checkNotNull(who, "ComponentName is null"); 6061 synchronized (this) { 6062 final ActiveAdmin deviceOwner = 6063 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6064 return deviceOwner.forceEphemeralUsers; 6065 } 6066 } 6067 6068 private void ensureDeviceOwnerAndAllUsersAffiliated(ComponentName who) throws SecurityException { 6069 synchronized (this) { 6070 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6071 if (!areAllUsersAffiliatedWithDeviceLocked()) { 6072 throw new SecurityException("Not all users are affiliated."); 6073 } 6074 } 6075 } 6076 6077 @Override 6078 public boolean requestBugreport(ComponentName who) { 6079 if (!mHasFeature) { 6080 return false; 6081 } 6082 Preconditions.checkNotNull(who, "ComponentName is null"); 6083 6084 // TODO: If an unaffiliated user is removed, the admin will be able to request a bugreport 6085 // which could still contain data related to that user. Should we disallow that, e.g. until 6086 // next boot? Might not be needed given that this still requires user consent. 6087 ensureDeviceOwnerAndAllUsersAffiliated(who); 6088 6089 if (mRemoteBugreportServiceIsActive.get() 6090 || (getDeviceOwnerRemoteBugreportUri() != null)) { 6091 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 6092 return false; 6093 } 6094 6095 final long currentTime = System.currentTimeMillis(); 6096 synchronized (this) { 6097 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 6098 if (currentTime > policyData.mLastBugReportRequestTime) { 6099 policyData.mLastBugReportRequestTime = currentTime; 6100 saveSettingsLocked(UserHandle.USER_SYSTEM); 6101 } 6102 } 6103 6104 final long callingIdentity = mInjector.binderClearCallingIdentity(); 6105 try { 6106 mInjector.getIActivityManager().requestBugReport( 6107 ActivityManager.BUGREPORT_OPTION_REMOTE); 6108 6109 mRemoteBugreportServiceIsActive.set(true); 6110 mRemoteBugreportSharingAccepted.set(false); 6111 registerRemoteBugreportReceivers(); 6112 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 6113 RemoteBugreportUtils.NOTIFICATION_ID, 6114 RemoteBugreportUtils.buildNotification(mContext, 6115 DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL); 6116 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 6117 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 6118 return true; 6119 } catch (RemoteException re) { 6120 // should never happen 6121 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 6122 return false; 6123 } finally { 6124 mInjector.binderRestoreCallingIdentity(callingIdentity); 6125 } 6126 } 6127 6128 synchronized void sendDeviceOwnerCommand(String action, Bundle extras) { 6129 Intent intent = new Intent(action); 6130 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6131 if (extras != null) { 6132 intent.putExtras(extras); 6133 } 6134 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6135 } 6136 6137 private synchronized String getDeviceOwnerRemoteBugreportUri() { 6138 return mOwners.getDeviceOwnerRemoteBugreportUri(); 6139 } 6140 6141 private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 6142 String bugreportHash) { 6143 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 6144 } 6145 6146 private void registerRemoteBugreportReceivers() { 6147 try { 6148 IntentFilter filterFinished = new IntentFilter( 6149 DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH, 6150 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6151 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 6152 } catch (IntentFilter.MalformedMimeTypeException e) { 6153 // should never happen, as setting a constant 6154 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 6155 } 6156 IntentFilter filterConsent = new IntentFilter(); 6157 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 6158 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 6159 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 6160 } 6161 6162 private void onBugreportFinished(Intent intent) { 6163 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6164 mRemoteBugreportServiceIsActive.set(false); 6165 Uri bugreportUri = intent.getData(); 6166 String bugreportUriString = null; 6167 if (bugreportUri != null) { 6168 bugreportUriString = bugreportUri.toString(); 6169 } 6170 String bugreportHash = intent.getStringExtra( 6171 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH); 6172 if (mRemoteBugreportSharingAccepted.get()) { 6173 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6174 mInjector.getNotificationManager().cancel(LOG_TAG, 6175 RemoteBugreportUtils.NOTIFICATION_ID); 6176 } else { 6177 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 6178 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6179 RemoteBugreportUtils.buildNotification(mContext, 6180 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 6181 UserHandle.ALL); 6182 } 6183 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6184 } 6185 6186 private void onBugreportFailed() { 6187 mRemoteBugreportServiceIsActive.set(false); 6188 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6189 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6190 mRemoteBugreportSharingAccepted.set(false); 6191 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6192 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 6193 Bundle extras = new Bundle(); 6194 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6195 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 6196 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6197 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 6198 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6199 } 6200 6201 private void onBugreportSharingAccepted() { 6202 mRemoteBugreportSharingAccepted.set(true); 6203 String bugreportUriString = null; 6204 String bugreportHash = null; 6205 synchronized (this) { 6206 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 6207 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 6208 } 6209 if (bugreportUriString != null) { 6210 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6211 } else if (mRemoteBugreportServiceIsActive.get()) { 6212 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6213 RemoteBugreportUtils.buildNotification(mContext, 6214 DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED), 6215 UserHandle.ALL); 6216 } 6217 } 6218 6219 private void onBugreportSharingDeclined() { 6220 if (mRemoteBugreportServiceIsActive.get()) { 6221 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6222 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6223 mRemoteBugreportServiceIsActive.set(false); 6224 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6225 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6226 } 6227 mRemoteBugreportSharingAccepted.set(false); 6228 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6229 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 6230 } 6231 6232 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 6233 String bugreportHash) { 6234 ParcelFileDescriptor pfd = null; 6235 try { 6236 if (bugreportUriString == null) { 6237 throw new FileNotFoundException(); 6238 } 6239 Uri bugreportUri = Uri.parse(bugreportUriString); 6240 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 6241 6242 synchronized (this) { 6243 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 6244 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6245 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6246 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 6247 intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 6248 6249 LocalServices.getService(ActivityManagerInternal.class) 6250 .grantUriPermissionFromIntent(Process.SHELL_UID, 6251 mOwners.getDeviceOwnerComponent().getPackageName(), 6252 intent, mOwners.getDeviceOwnerUserId()); 6253 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6254 } 6255 } catch (FileNotFoundException e) { 6256 Bundle extras = new Bundle(); 6257 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6258 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 6259 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6260 } finally { 6261 try { 6262 if (pfd != null) { 6263 pfd.close(); 6264 } 6265 } catch (IOException ex) { 6266 // Ignore 6267 } 6268 mRemoteBugreportSharingAccepted.set(false); 6269 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6270 } 6271 } 6272 6273 /** 6274 * Disables all device cameras according to the specified admin. 6275 */ 6276 @Override 6277 public void setCameraDisabled(ComponentName who, boolean disabled) { 6278 if (!mHasFeature) { 6279 return; 6280 } 6281 Preconditions.checkNotNull(who, "ComponentName is null"); 6282 final int userHandle = mInjector.userHandleGetCallingUserId(); 6283 synchronized (this) { 6284 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6285 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 6286 if (ap.disableCamera != disabled) { 6287 ap.disableCamera = disabled; 6288 saveSettingsLocked(userHandle); 6289 } 6290 } 6291 // Tell the user manager that the restrictions have changed. 6292 pushUserRestrictions(userHandle); 6293 } 6294 6295 /** 6296 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 6297 * active admins. 6298 */ 6299 @Override 6300 public boolean getCameraDisabled(ComponentName who, int userHandle) { 6301 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 6302 } 6303 6304 private boolean getCameraDisabled(ComponentName who, int userHandle, 6305 boolean mergeDeviceOwnerRestriction) { 6306 if (!mHasFeature) { 6307 return false; 6308 } 6309 synchronized (this) { 6310 if (who != null) { 6311 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6312 return (admin != null) ? admin.disableCamera : false; 6313 } 6314 // First, see if DO has set it. If so, it's device-wide. 6315 if (mergeDeviceOwnerRestriction) { 6316 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6317 if (deviceOwner != null && deviceOwner.disableCamera) { 6318 return true; 6319 } 6320 } 6321 6322 // Then check each device admin on the user. 6323 DevicePolicyData policy = getUserData(userHandle); 6324 // Determine whether or not the device camera is disabled for any active admins. 6325 final int N = policy.mAdminList.size(); 6326 for (int i = 0; i < N; i++) { 6327 ActiveAdmin admin = policy.mAdminList.get(i); 6328 if (admin.disableCamera) { 6329 return true; 6330 } 6331 } 6332 return false; 6333 } 6334 } 6335 6336 @Override 6337 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 6338 if (!mHasFeature) { 6339 return; 6340 } 6341 Preconditions.checkNotNull(who, "ComponentName is null"); 6342 final int userHandle = mInjector.userHandleGetCallingUserId(); 6343 if (isManagedProfile(userHandle)) { 6344 if (parent) { 6345 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 6346 } else { 6347 which = which & PROFILE_KEYGUARD_FEATURES; 6348 } 6349 } 6350 synchronized (this) { 6351 ActiveAdmin ap = getActiveAdminForCallerLocked( 6352 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 6353 if (ap.disabledKeyguardFeatures != which) { 6354 ap.disabledKeyguardFeatures = which; 6355 saveSettingsLocked(userHandle); 6356 } 6357 } 6358 } 6359 6360 /** 6361 * Gets the disabled state for features in keyguard for the given admin, 6362 * or the aggregate of all active admins if who is null. 6363 */ 6364 @Override 6365 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 6366 if (!mHasFeature) { 6367 return 0; 6368 } 6369 enforceFullCrossUsersPermission(userHandle); 6370 final long ident = mInjector.binderClearCallingIdentity(); 6371 try { 6372 synchronized (this) { 6373 if (who != null) { 6374 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 6375 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 6376 } 6377 6378 final List<ActiveAdmin> admins; 6379 if (!parent && isManagedProfile(userHandle)) { 6380 // If we are being asked about a managed profile, just return keyguard features 6381 // disabled by admins in the profile. 6382 admins = getUserDataUnchecked(userHandle).mAdminList; 6383 } else { 6384 // Otherwise return those set by admins in the user and its profiles. 6385 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 6386 } 6387 6388 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 6389 final int N = admins.size(); 6390 for (int i = 0; i < N; i++) { 6391 ActiveAdmin admin = admins.get(i); 6392 int userId = admin.getUserHandle().getIdentifier(); 6393 boolean isRequestedUser = !parent && (userId == userHandle); 6394 if (isRequestedUser || !isManagedProfile(userId)) { 6395 // If we are being asked explicitly about this user 6396 // return all disabled features even if its a managed profile. 6397 which |= admin.disabledKeyguardFeatures; 6398 } else { 6399 // Otherwise a managed profile is only allowed to disable 6400 // some features on the parent user. 6401 which |= (admin.disabledKeyguardFeatures 6402 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 6403 } 6404 } 6405 return which; 6406 } 6407 } finally { 6408 mInjector.binderRestoreCallingIdentity(ident); 6409 } 6410 } 6411 6412 @Override 6413 public void setKeepUninstalledPackages(ComponentName who, String callerPackage, 6414 List<String> packageList) { 6415 if (!mHasFeature) { 6416 return; 6417 } 6418 Preconditions.checkNotNull(packageList, "packageList is null"); 6419 final int userHandle = UserHandle.getCallingUserId(); 6420 synchronized (this) { 6421 // Ensure the caller is a DO or a keep uninstalled packages delegate. 6422 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 6423 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 6424 // Get the device owner 6425 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6426 // Set list of packages to be kept even if uninstalled. 6427 deviceOwner.keepUninstalledPackages = packageList; 6428 // Save settings. 6429 saveSettingsLocked(userHandle); 6430 // Notify package manager. 6431 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 6432 } 6433 } 6434 6435 @Override 6436 public List<String> getKeepUninstalledPackages(ComponentName who, String callerPackage) { 6437 if (!mHasFeature) { 6438 return null; 6439 } 6440 // TODO In split system user mode, allow apps on user 0 to query the list 6441 synchronized (this) { 6442 // Ensure the caller is a DO or a keep uninstalled packages delegate. 6443 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 6444 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 6445 return getKeepUninstalledPackagesLocked(); 6446 } 6447 } 6448 6449 private List<String> getKeepUninstalledPackagesLocked() { 6450 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6451 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 6452 } 6453 6454 @Override 6455 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 6456 if (!mHasFeature) { 6457 return false; 6458 } 6459 if (admin == null 6460 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 6461 throw new IllegalArgumentException("Invalid component " + admin 6462 + " for device owner"); 6463 } 6464 final boolean hasIncompatibleAccountsOrNonAdb = 6465 hasIncompatibleAccountsOrNonAdbNoLock(userId, admin); 6466 synchronized (this) { 6467 enforceCanSetDeviceOwnerLocked(admin, userId, hasIncompatibleAccountsOrNonAdb); 6468 final ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(admin, userId); 6469 if (activeAdmin == null 6470 || getUserData(userId).mRemovingAdmins.contains(admin)) { 6471 throw new IllegalArgumentException("Not active admin: " + admin); 6472 } 6473 6474 // Shutting down backup manager service permanently. 6475 long ident = mInjector.binderClearCallingIdentity(); 6476 try { 6477 if (mInjector.getIBackupManager() != null) { 6478 mInjector.getIBackupManager() 6479 .setBackupServiceActive(UserHandle.USER_SYSTEM, false); 6480 } 6481 } catch (RemoteException e) { 6482 throw new IllegalStateException("Failed deactivating backup service.", e); 6483 } finally { 6484 mInjector.binderRestoreCallingIdentity(ident); 6485 } 6486 6487 if (isAdb()) { 6488 // Log device owner provisioning was started using adb. 6489 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_DEVICE_OWNER); 6490 } 6491 6492 mOwners.setDeviceOwner(admin, ownerName, userId); 6493 mOwners.writeDeviceOwner(); 6494 updateDeviceOwnerLocked(); 6495 setDeviceOwnerSystemPropertyLocked(); 6496 6497 final Set<String> restrictions = 6498 UserRestrictionsUtils.getDefaultEnabledForDeviceOwner(); 6499 if (!restrictions.isEmpty()) { 6500 for (String restriction : restrictions) { 6501 activeAdmin.ensureUserRestrictions().putBoolean(restriction, true); 6502 } 6503 activeAdmin.defaultEnabledRestrictionsAlreadySet.addAll(restrictions); 6504 Slog.i(LOG_TAG, "Enabled the following restrictions by default: " + restrictions); 6505 6506 saveUserRestrictionsLocked(userId); 6507 } 6508 6509 ident = mInjector.binderClearCallingIdentity(); 6510 try { 6511 // TODO Send to system too? 6512 mContext.sendBroadcastAsUser( 6513 new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED) 6514 .addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND), 6515 UserHandle.of(userId)); 6516 } finally { 6517 mInjector.binderRestoreCallingIdentity(ident); 6518 } 6519 Slog.i(LOG_TAG, "Device owner set: " + admin + " on user " + userId); 6520 return true; 6521 } 6522 } 6523 6524 @Override 6525 public boolean hasDeviceOwner() { 6526 enforceDeviceOwnerOrManageUsers(); 6527 return mOwners.hasDeviceOwner(); 6528 } 6529 6530 boolean isDeviceOwner(ActiveAdmin admin) { 6531 return isDeviceOwner(admin.info.getComponent(), admin.getUserHandle().getIdentifier()); 6532 } 6533 6534 public boolean isDeviceOwner(ComponentName who, int userId) { 6535 synchronized (this) { 6536 return mOwners.hasDeviceOwner() 6537 && mOwners.getDeviceOwnerUserId() == userId 6538 && mOwners.getDeviceOwnerComponent().equals(who); 6539 } 6540 } 6541 6542 private boolean isDeviceOwnerPackage(String packageName, int userId) { 6543 synchronized (this) { 6544 return mOwners.hasDeviceOwner() 6545 && mOwners.getDeviceOwnerUserId() == userId 6546 && mOwners.getDeviceOwnerPackageName().equals(packageName); 6547 } 6548 } 6549 6550 private boolean isProfileOwnerPackage(String packageName, int userId) { 6551 synchronized (this) { 6552 return mOwners.hasProfileOwner(userId) 6553 && mOwners.getProfileOwnerPackage(userId).equals(packageName); 6554 } 6555 } 6556 6557 public boolean isProfileOwner(ComponentName who, int userId) { 6558 final ComponentName profileOwner = getProfileOwner(userId); 6559 return who != null && who.equals(profileOwner); 6560 } 6561 6562 @Override 6563 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 6564 if (!mHasFeature) { 6565 return null; 6566 } 6567 if (!callingUserOnly) { 6568 enforceManageUsers(); 6569 } 6570 synchronized (this) { 6571 if (!mOwners.hasDeviceOwner()) { 6572 return null; 6573 } 6574 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 6575 mOwners.getDeviceOwnerUserId()) { 6576 return null; 6577 } 6578 return mOwners.getDeviceOwnerComponent(); 6579 } 6580 } 6581 6582 @Override 6583 public int getDeviceOwnerUserId() { 6584 if (!mHasFeature) { 6585 return UserHandle.USER_NULL; 6586 } 6587 enforceManageUsers(); 6588 synchronized (this) { 6589 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 6590 } 6591 } 6592 6593 /** 6594 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 6595 * MANAGE_USERS. 6596 */ 6597 @Override 6598 public String getDeviceOwnerName() { 6599 if (!mHasFeature) { 6600 return null; 6601 } 6602 enforceManageUsers(); 6603 synchronized (this) { 6604 if (!mOwners.hasDeviceOwner()) { 6605 return null; 6606 } 6607 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 6608 // Should setDeviceOwner/ProfileOwner still take a name? 6609 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 6610 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 6611 } 6612 } 6613 6614 /** Returns the active device owner or {@code null} if there is no device owner. */ 6615 @VisibleForTesting 6616 ActiveAdmin getDeviceOwnerAdminLocked() { 6617 ComponentName component = mOwners.getDeviceOwnerComponent(); 6618 if (component == null) { 6619 return null; 6620 } 6621 6622 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 6623 final int n = policy.mAdminList.size(); 6624 for (int i = 0; i < n; i++) { 6625 ActiveAdmin admin = policy.mAdminList.get(i); 6626 if (component.equals(admin.info.getComponent())) { 6627 return admin; 6628 } 6629 } 6630 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 6631 return null; 6632 } 6633 6634 @Override 6635 public void clearDeviceOwner(String packageName) { 6636 Preconditions.checkNotNull(packageName, "packageName is null"); 6637 final int callingUid = mInjector.binderGetCallingUid(); 6638 try { 6639 int uid = mInjector.getPackageManager().getPackageUidAsUser(packageName, 6640 UserHandle.getUserId(callingUid)); 6641 if (uid != callingUid) { 6642 throw new SecurityException("Invalid packageName"); 6643 } 6644 } catch (NameNotFoundException e) { 6645 throw new SecurityException(e); 6646 } 6647 synchronized (this) { 6648 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 6649 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 6650 if (!mOwners.hasDeviceOwner() 6651 || !deviceOwnerComponent.getPackageName().equals(packageName) 6652 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 6653 throw new SecurityException( 6654 "clearDeviceOwner can only be called by the device owner"); 6655 } 6656 enforceUserUnlocked(deviceOwnerUserId); 6657 6658 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 6659 long ident = mInjector.binderClearCallingIdentity(); 6660 try { 6661 clearDeviceOwnerLocked(admin, deviceOwnerUserId); 6662 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 6663 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 6664 intent.addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); 6665 mContext.sendBroadcastAsUser(intent, UserHandle.of(deviceOwnerUserId)); 6666 } finally { 6667 mInjector.binderRestoreCallingIdentity(ident); 6668 } 6669 Slog.i(LOG_TAG, "Device owner removed: " + deviceOwnerComponent); 6670 } 6671 } 6672 6673 private void clearDeviceOwnerLocked(ActiveAdmin admin, int userId) { 6674 if (admin != null) { 6675 admin.disableCamera = false; 6676 admin.userRestrictions = null; 6677 admin.defaultEnabledRestrictionsAlreadySet.clear(); 6678 admin.forceEphemeralUsers = false; 6679 admin.isNetworkLoggingEnabled = false; 6680 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 6681 } 6682 final DevicePolicyData policyData = getUserData(userId); 6683 policyData.mDefaultInputMethodSet = false; 6684 saveSettingsLocked(userId); 6685 final DevicePolicyData systemPolicyData = getUserData(UserHandle.USER_SYSTEM); 6686 systemPolicyData.mLastSecurityLogRetrievalTime = -1; 6687 systemPolicyData.mLastBugReportRequestTime = -1; 6688 systemPolicyData.mLastNetworkLogsRetrievalTime = -1; 6689 saveSettingsLocked(UserHandle.USER_SYSTEM); 6690 clearUserPoliciesLocked(userId); 6691 6692 mOwners.clearDeviceOwner(); 6693 mOwners.writeDeviceOwner(); 6694 updateDeviceOwnerLocked(); 6695 6696 clearDeviceOwnerUserRestrictionLocked(UserHandle.of(userId)); 6697 mInjector.securityLogSetLoggingEnabledProperty(false); 6698 mSecurityLogMonitor.stop(); 6699 setNetworkLoggingActiveInternal(false); 6700 6701 try { 6702 if (mInjector.getIBackupManager() != null) { 6703 // Reactivate backup service. 6704 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 6705 } 6706 } catch (RemoteException e) { 6707 throw new IllegalStateException("Failed reactivating backup service.", e); 6708 } 6709 } 6710 6711 @Override 6712 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 6713 if (!mHasFeature) { 6714 return false; 6715 } 6716 if (who == null 6717 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 6718 throw new IllegalArgumentException("Component " + who 6719 + " not installed for userId:" + userHandle); 6720 } 6721 final boolean hasIncompatibleAccountsOrNonAdb = 6722 hasIncompatibleAccountsOrNonAdbNoLock(userHandle, who); 6723 synchronized (this) { 6724 enforceCanSetProfileOwnerLocked(who, userHandle, hasIncompatibleAccountsOrNonAdb); 6725 6726 if (getActiveAdminUncheckedLocked(who, userHandle) == null 6727 || getUserData(userHandle).mRemovingAdmins.contains(who)) { 6728 throw new IllegalArgumentException("Not active admin: " + who); 6729 } 6730 6731 if (isAdb()) { 6732 // Log profile owner provisioning was started using adb. 6733 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_PROFILE_OWNER); 6734 } 6735 6736 mOwners.setProfileOwner(who, ownerName, userHandle); 6737 mOwners.writeProfileOwner(userHandle); 6738 Slog.i(LOG_TAG, "Profile owner set: " + who + " on user " + userHandle); 6739 6740 final long id = mInjector.binderClearCallingIdentity(); 6741 try { 6742 if (mUserManager.isManagedProfile(userHandle)) { 6743 setUserRestrictionOnBehalfOfProfileOwnerLocked( 6744 UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, userHandle); 6745 mInjector.settingsSecurePutIntForUser( 6746 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userHandle); 6747 } 6748 } finally { 6749 mInjector.binderRestoreCallingIdentity(id); 6750 } 6751 return true; 6752 } 6753 } 6754 6755 @Override 6756 public void clearProfileOwner(ComponentName who) { 6757 if (!mHasFeature) { 6758 return; 6759 } 6760 Preconditions.checkNotNull(who, "ComponentName is null"); 6761 6762 final int userId = mInjector.userHandleGetCallingUserId(); 6763 enforceNotManagedProfile(userId, "clear profile owner"); 6764 enforceUserUnlocked(userId); 6765 synchronized (this) { 6766 // Check if this is the profile owner who is calling 6767 final ActiveAdmin admin = 6768 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6769 6770 final long ident = mInjector.binderClearCallingIdentity(); 6771 try { 6772 clearProfileOwnerLocked(admin, userId); 6773 removeActiveAdminLocked(who, userId); 6774 } finally { 6775 mInjector.binderRestoreCallingIdentity(ident); 6776 } 6777 Slog.i(LOG_TAG, "Profile owner " + who + " removed from user " + userId); 6778 } 6779 } 6780 6781 public void clearProfileOwnerLocked(ActiveAdmin admin, int userId) { 6782 if (admin != null) { 6783 admin.disableCamera = false; 6784 admin.userRestrictions = null; 6785 admin.defaultEnabledRestrictionsAlreadySet.clear(); 6786 } 6787 final DevicePolicyData policyData = getUserData(userId); 6788 policyData.mDefaultInputMethodSet = false; 6789 policyData.mOwnerInstalledCaCerts.clear(); 6790 saveSettingsLocked(userId); 6791 clearUserPoliciesLocked(userId); 6792 mOwners.removeProfileOwner(userId); 6793 mOwners.writeProfileOwner(userId); 6794 } 6795 6796 @Override 6797 public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) { 6798 Preconditions.checkNotNull(who, "ComponentName is null"); 6799 if (!mHasFeature) { 6800 return; 6801 } 6802 6803 synchronized (this) { 6804 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6805 long token = mInjector.binderClearCallingIdentity(); 6806 try { 6807 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null); 6808 } finally { 6809 mInjector.binderRestoreCallingIdentity(token); 6810 } 6811 } 6812 } 6813 6814 @Override 6815 public CharSequence getDeviceOwnerLockScreenInfo() { 6816 return mLockPatternUtils.getDeviceOwnerInfo(); 6817 } 6818 6819 private void clearUserPoliciesLocked(int userId) { 6820 // Reset some of the user-specific policies. 6821 final DevicePolicyData policy = getUserData(userId); 6822 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 6823 // Clear delegations. 6824 policy.mDelegationMap.clear(); 6825 policy.mStatusBarDisabled = false; 6826 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 6827 policy.mAffiliationIds.clear(); 6828 policy.mLockTaskPackages.clear(); 6829 saveSettingsLocked(userId); 6830 6831 try { 6832 mIPackageManager.updatePermissionFlagsForAllApps( 6833 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6834 0 /* flagValues */, userId); 6835 pushUserRestrictions(userId); 6836 } catch (RemoteException re) { 6837 // Shouldn't happen. 6838 } 6839 } 6840 6841 @Override 6842 public boolean hasUserSetupCompleted() { 6843 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 6844 } 6845 6846 // This checks only if the Setup Wizard has run. Since Wear devices pair before 6847 // completing Setup Wizard, and pairing involves transferring user data, calling 6848 // logic may want to check mIsWatch or mPaired in addition to hasUserSetupCompleted(). 6849 private boolean hasUserSetupCompleted(int userHandle) { 6850 if (!mHasFeature) { 6851 return true; 6852 } 6853 return getUserData(userHandle).mUserSetupComplete; 6854 } 6855 6856 private boolean hasPaired(int userHandle) { 6857 if (!mHasFeature) { 6858 return true; 6859 } 6860 return getUserData(userHandle).mPaired; 6861 } 6862 6863 @Override 6864 public int getUserProvisioningState() { 6865 if (!mHasFeature) { 6866 return DevicePolicyManager.STATE_USER_UNMANAGED; 6867 } 6868 int userHandle = mInjector.userHandleGetCallingUserId(); 6869 return getUserProvisioningState(userHandle); 6870 } 6871 6872 private int getUserProvisioningState(int userHandle) { 6873 return getUserData(userHandle).mUserProvisioningState; 6874 } 6875 6876 @Override 6877 public void setUserProvisioningState(int newState, int userHandle) { 6878 if (!mHasFeature) { 6879 return; 6880 } 6881 6882 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 6883 && getManagedUserId(userHandle) == -1) { 6884 // No managed device, user or profile, so setting provisioning state makes no sense. 6885 throw new IllegalStateException("Not allowed to change provisioning state unless a " 6886 + "device or profile owner is set."); 6887 } 6888 6889 synchronized (this) { 6890 boolean transitionCheckNeeded = true; 6891 6892 // Calling identity/permission checks. 6893 if (isAdb()) { 6894 // ADB shell can only move directly from un-managed to finalized as part of directly 6895 // setting profile-owner or device-owner. 6896 if (getUserProvisioningState(userHandle) != 6897 DevicePolicyManager.STATE_USER_UNMANAGED 6898 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6899 throw new IllegalStateException("Not allowed to change provisioning state " 6900 + "unless current provisioning state is unmanaged, and new state is " 6901 + "finalized."); 6902 } 6903 transitionCheckNeeded = false; 6904 } else { 6905 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 6906 enforceCanManageProfileAndDeviceOwners(); 6907 } 6908 6909 final DevicePolicyData policyData = getUserData(userHandle); 6910 if (transitionCheckNeeded) { 6911 // Optional state transition check for non-ADB case. 6912 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 6913 } 6914 policyData.mUserProvisioningState = newState; 6915 saveSettingsLocked(userHandle); 6916 } 6917 } 6918 6919 private void checkUserProvisioningStateTransition(int currentState, int newState) { 6920 // Valid transitions for normal use-cases. 6921 switch (currentState) { 6922 case DevicePolicyManager.STATE_USER_UNMANAGED: 6923 // Can move to any state from unmanaged (except itself as an edge case).. 6924 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 6925 return; 6926 } 6927 break; 6928 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 6929 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 6930 // Can only move to finalized from these states. 6931 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6932 return; 6933 } 6934 break; 6935 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 6936 // Current user has a managed-profile, but current user is not managed, so 6937 // rather than moving to finalized state, go back to unmanaged once 6938 // profile provisioning is complete. 6939 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 6940 return; 6941 } 6942 break; 6943 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 6944 // Cannot transition out of finalized. 6945 break; 6946 } 6947 6948 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 6949 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 6950 + "from state [" + currentState + "]"); 6951 } 6952 6953 @Override 6954 public void setProfileEnabled(ComponentName who) { 6955 if (!mHasFeature) { 6956 return; 6957 } 6958 Preconditions.checkNotNull(who, "ComponentName is null"); 6959 synchronized (this) { 6960 // Check if this is the profile owner who is calling 6961 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6962 final int userId = UserHandle.getCallingUserId(); 6963 enforceManagedProfile(userId, "enable the profile"); 6964 // Check if the profile is already enabled. 6965 UserInfo managedProfile = getUserInfo(userId); 6966 if (managedProfile.isEnabled()) { 6967 Slog.e(LOG_TAG, 6968 "setProfileEnabled is called when the profile is already enabled"); 6969 return; 6970 } 6971 long id = mInjector.binderClearCallingIdentity(); 6972 try { 6973 mUserManager.setUserEnabled(userId); 6974 UserInfo parent = mUserManager.getProfileParent(userId); 6975 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 6976 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 6977 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 6978 Intent.FLAG_RECEIVER_FOREGROUND); 6979 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 6980 } finally { 6981 mInjector.binderRestoreCallingIdentity(id); 6982 } 6983 } 6984 } 6985 6986 @Override 6987 public void setProfileName(ComponentName who, String profileName) { 6988 Preconditions.checkNotNull(who, "ComponentName is null"); 6989 int userId = UserHandle.getCallingUserId(); 6990 // Check if this is the profile owner (includes device owner). 6991 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6992 6993 long id = mInjector.binderClearCallingIdentity(); 6994 try { 6995 mUserManager.setUserName(userId, profileName); 6996 } finally { 6997 mInjector.binderRestoreCallingIdentity(id); 6998 } 6999 } 7000 7001 @Override 7002 public ComponentName getProfileOwner(int userHandle) { 7003 if (!mHasFeature) { 7004 return null; 7005 } 7006 7007 synchronized (this) { 7008 return mOwners.getProfileOwnerComponent(userHandle); 7009 } 7010 } 7011 7012 // Returns the active profile owner for this user or null if the current user has no 7013 // profile owner. 7014 @VisibleForTesting 7015 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 7016 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 7017 if (profileOwner == null) { 7018 return null; 7019 } 7020 DevicePolicyData policy = getUserData(userHandle); 7021 final int n = policy.mAdminList.size(); 7022 for (int i = 0; i < n; i++) { 7023 ActiveAdmin admin = policy.mAdminList.get(i); 7024 if (profileOwner.equals(admin.info.getComponent())) { 7025 return admin; 7026 } 7027 } 7028 return null; 7029 } 7030 7031 @Override 7032 public String getProfileOwnerName(int userHandle) { 7033 if (!mHasFeature) { 7034 return null; 7035 } 7036 enforceManageUsers(); 7037 ComponentName profileOwner = getProfileOwner(userHandle); 7038 if (profileOwner == null) { 7039 return null; 7040 } 7041 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 7042 } 7043 7044 /** 7045 * Canonical name for a given package. 7046 */ 7047 private String getApplicationLabel(String packageName, int userHandle) { 7048 long token = mInjector.binderClearCallingIdentity(); 7049 try { 7050 final Context userContext; 7051 try { 7052 UserHandle handle = new UserHandle(userHandle); 7053 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 7054 } catch (PackageManager.NameNotFoundException nnfe) { 7055 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 7056 return null; 7057 } 7058 ApplicationInfo appInfo = userContext.getApplicationInfo(); 7059 CharSequence result = null; 7060 if (appInfo != null) { 7061 PackageManager pm = userContext.getPackageManager(); 7062 result = pm.getApplicationLabel(appInfo); 7063 } 7064 return result != null ? result.toString() : null; 7065 } finally { 7066 mInjector.binderRestoreCallingIdentity(token); 7067 } 7068 } 7069 7070 /** 7071 * Calls wtfStack() if called with the DPMS lock held. 7072 */ 7073 private void wtfIfInLock() { 7074 if (Thread.holdsLock(this)) { 7075 Slog.wtfStack(LOG_TAG, "Shouldn't be called with DPMS lock held"); 7076 } 7077 } 7078 7079 /** 7080 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7081 * permission. 7082 * The profile owner can only be set before the user setup phase has completed, 7083 * except for: 7084 * - SYSTEM_UID 7085 * - adb unless hasIncompatibleAccountsOrNonAdb is true. 7086 */ 7087 private void enforceCanSetProfileOwnerLocked(@Nullable ComponentName owner, int userHandle, 7088 boolean hasIncompatibleAccountsOrNonAdb) { 7089 UserInfo info = getUserInfo(userHandle); 7090 if (info == null) { 7091 // User doesn't exist. 7092 throw new IllegalArgumentException( 7093 "Attempted to set profile owner for invalid userId: " + userHandle); 7094 } 7095 if (info.isGuest()) { 7096 throw new IllegalStateException("Cannot set a profile owner on a guest"); 7097 } 7098 if (mOwners.hasProfileOwner(userHandle)) { 7099 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 7100 + "is already set."); 7101 } 7102 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 7103 throw new IllegalStateException("Trying to set the profile owner, but the user " 7104 + "already has a device owner."); 7105 } 7106 if (isAdb()) { 7107 if ((mIsWatch || hasUserSetupCompleted(userHandle)) 7108 && hasIncompatibleAccountsOrNonAdb) { 7109 throw new IllegalStateException("Not allowed to set the profile owner because " 7110 + "there are already some accounts on the profile"); 7111 } 7112 return; 7113 } 7114 enforceCanManageProfileAndDeviceOwners(); 7115 if ((mIsWatch || hasUserSetupCompleted(userHandle)) && !isCallerWithSystemUid()) { 7116 throw new IllegalStateException("Cannot set the profile owner on a user which is " 7117 + "already set-up"); 7118 } 7119 } 7120 7121 /** 7122 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7123 * permission. 7124 */ 7125 private void enforceCanSetDeviceOwnerLocked(@Nullable ComponentName owner, int userId, 7126 boolean hasIncompatibleAccountsOrNonAdb) { 7127 if (!isAdb()) { 7128 enforceCanManageProfileAndDeviceOwners(); 7129 } 7130 7131 final int code = checkDeviceOwnerProvisioningPreConditionLocked( 7132 owner, userId, isAdb(), hasIncompatibleAccountsOrNonAdb); 7133 switch (code) { 7134 case CODE_OK: 7135 return; 7136 case CODE_HAS_DEVICE_OWNER: 7137 throw new IllegalStateException( 7138 "Trying to set the device owner, but device owner is already set."); 7139 case CODE_USER_HAS_PROFILE_OWNER: 7140 throw new IllegalStateException("Trying to set the device owner, but the user " 7141 + "already has a profile owner."); 7142 case CODE_USER_NOT_RUNNING: 7143 throw new IllegalStateException("User not running: " + userId); 7144 case CODE_NOT_SYSTEM_USER: 7145 throw new IllegalStateException("User is not system user"); 7146 case CODE_USER_SETUP_COMPLETED: 7147 throw new IllegalStateException( 7148 "Cannot set the device owner if the device is already set-up"); 7149 case CODE_NONSYSTEM_USER_EXISTS: 7150 throw new IllegalStateException("Not allowed to set the device owner because there " 7151 + "are already several users on the device"); 7152 case CODE_ACCOUNTS_NOT_EMPTY: 7153 throw new IllegalStateException("Not allowed to set the device owner because there " 7154 + "are already some accounts on the device"); 7155 case CODE_HAS_PAIRED: 7156 throw new IllegalStateException("Not allowed to set the device owner because this " 7157 + "device has already paired"); 7158 default: 7159 throw new IllegalStateException("Unexpected @ProvisioningPreCondition " + code); 7160 } 7161 } 7162 7163 private void enforceUserUnlocked(int userId) { 7164 // Since we're doing this operation on behalf of an app, we only 7165 // want to use the actual "unlocked" state. 7166 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 7167 "User must be running and unlocked"); 7168 } 7169 7170 private void enforceUserUnlocked(@UserIdInt int userId, boolean parent) { 7171 if (parent) { 7172 enforceUserUnlocked(getProfileParentId(userId)); 7173 } else { 7174 enforceUserUnlocked(userId); 7175 } 7176 } 7177 7178 private void enforceManageUsers() { 7179 final int callingUid = mInjector.binderGetCallingUid(); 7180 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 7181 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 7182 } 7183 } 7184 7185 private void enforceFullCrossUsersPermission(int userHandle) { 7186 enforceSystemUserOrPermissionIfCrossUser(userHandle, 7187 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 7188 } 7189 7190 private void enforceCrossUsersPermission(int userHandle) { 7191 enforceSystemUserOrPermissionIfCrossUser(userHandle, 7192 android.Manifest.permission.INTERACT_ACROSS_USERS); 7193 } 7194 7195 private void enforceSystemUserOrPermission(String permission) { 7196 if (!(isCallerWithSystemUid() || mInjector.binderGetCallingUid() == Process.ROOT_UID)) { 7197 mContext.enforceCallingOrSelfPermission(permission, 7198 "Must be system or have " + permission + " permission"); 7199 } 7200 } 7201 7202 private void enforceSystemUserOrPermissionIfCrossUser(int userHandle, String permission) { 7203 if (userHandle < 0) { 7204 throw new IllegalArgumentException("Invalid userId " + userHandle); 7205 } 7206 if (userHandle == mInjector.userHandleGetCallingUserId()) { 7207 return; 7208 } 7209 enforceSystemUserOrPermission(permission); 7210 } 7211 7212 private void enforceManagedProfile(int userHandle, String message) { 7213 if(!isManagedProfile(userHandle)) { 7214 throw new SecurityException("You can not " + message + " outside a managed profile."); 7215 } 7216 } 7217 7218 private void enforceNotManagedProfile(int userHandle, String message) { 7219 if(isManagedProfile(userHandle)) { 7220 throw new SecurityException("You can not " + message + " for a managed profile."); 7221 } 7222 } 7223 7224 private void enforceDeviceOwnerOrManageUsers() { 7225 synchronized (this) { 7226 if (getActiveAdminWithPolicyForUidLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 7227 mInjector.binderGetCallingUid()) != null) { 7228 return; 7229 } 7230 } 7231 enforceManageUsers(); 7232 } 7233 7234 private void enforceProfileOwnerOrSystemUser(ComponentName admin) { 7235 synchronized (this) { 7236 if (getActiveAdminWithPolicyForUidLocked(admin, 7237 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7238 != null) { 7239 return; 7240 } 7241 } 7242 Preconditions.checkState(isCallerWithSystemUid(), 7243 "Only profile owner, device owner and system may call this method."); 7244 } 7245 7246 private void enforceProfileOwnerOrFullCrossUsersPermission(int userId) { 7247 if (userId == mInjector.userHandleGetCallingUserId()) { 7248 synchronized (this) { 7249 if (getActiveAdminWithPolicyForUidLocked(null, 7250 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7251 != null) { 7252 // Device Owner/Profile Owner may access the user it runs on. 7253 return; 7254 } 7255 } 7256 } 7257 // Otherwise, INTERACT_ACROSS_USERS_FULL permission, system UID or root UID is required. 7258 enforceSystemUserOrPermission(android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 7259 } 7260 7261 private void ensureCallerPackage(@Nullable String packageName) { 7262 if (packageName == null) { 7263 Preconditions.checkState(isCallerWithSystemUid(), 7264 "Only caller can omit package name"); 7265 } else { 7266 final int callingUid = mInjector.binderGetCallingUid(); 7267 final int userId = mInjector.userHandleGetCallingUserId(); 7268 try { 7269 final ApplicationInfo ai = mIPackageManager.getApplicationInfo( 7270 packageName, 0, userId); 7271 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name"); 7272 } catch (RemoteException e) { 7273 // Shouldn't happen 7274 } 7275 } 7276 } 7277 7278 private boolean isCallerWithSystemUid() { 7279 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 7280 } 7281 7282 protected int getProfileParentId(int userHandle) { 7283 final long ident = mInjector.binderClearCallingIdentity(); 7284 try { 7285 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 7286 return parentUser != null ? parentUser.id : userHandle; 7287 } finally { 7288 mInjector.binderRestoreCallingIdentity(ident); 7289 } 7290 } 7291 7292 private int getCredentialOwner(int userHandle, boolean parent) { 7293 final long ident = mInjector.binderClearCallingIdentity(); 7294 try { 7295 if (parent) { 7296 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 7297 if (parentProfile != null) { 7298 userHandle = parentProfile.id; 7299 } 7300 } 7301 return mUserManager.getCredentialOwnerProfile(userHandle); 7302 } finally { 7303 mInjector.binderRestoreCallingIdentity(ident); 7304 } 7305 } 7306 7307 private boolean isManagedProfile(int userHandle) { 7308 final UserInfo user = getUserInfo(userHandle); 7309 return user != null && user.isManagedProfile(); 7310 } 7311 7312 private void enableIfNecessary(String packageName, int userId) { 7313 try { 7314 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 7315 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 7316 userId); 7317 if (ai.enabledSetting 7318 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 7319 mIPackageManager.setApplicationEnabledSetting(packageName, 7320 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 7321 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 7322 } 7323 } catch (RemoteException e) { 7324 } 7325 } 7326 7327 @Override 7328 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 7329 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 7330 != PackageManager.PERMISSION_GRANTED) { 7331 7332 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 7333 + mInjector.binderGetCallingPid() 7334 + ", uid=" + mInjector.binderGetCallingUid()); 7335 return; 7336 } 7337 7338 synchronized (this) { 7339 pw.println("Current Device Policy Manager state:"); 7340 mOwners.dump(" ", pw); 7341 int userCount = mUserData.size(); 7342 for (int u = 0; u < userCount; u++) { 7343 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 7344 pw.println(); 7345 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 7346 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 7347 final int N = policy.mAdminList.size(); 7348 for (int i=0; i<N; i++) { 7349 ActiveAdmin ap = policy.mAdminList.get(i); 7350 if (ap != null) { 7351 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 7352 pw.println(":"); 7353 ap.dump(" ", pw); 7354 } 7355 } 7356 if (!policy.mRemovingAdmins.isEmpty()) { 7357 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 7358 + policy.mRemovingAdmins); 7359 } 7360 7361 pw.println(" "); 7362 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 7363 } 7364 pw.println(); 7365 pw.println("Encryption Status: " + getEncryptionStatusName(getEncryptionStatus())); 7366 } 7367 } 7368 7369 private String getEncryptionStatusName(int encryptionStatus) { 7370 switch (encryptionStatus) { 7371 case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE: 7372 return "inactive"; 7373 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: 7374 return "block default key"; 7375 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE: 7376 return "block"; 7377 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER: 7378 return "per-user"; 7379 case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED: 7380 return "unsupported"; 7381 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING: 7382 return "activating"; 7383 default: 7384 return "unknown"; 7385 } 7386 } 7387 7388 @Override 7389 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 7390 ComponentName activity) { 7391 Preconditions.checkNotNull(who, "ComponentName is null"); 7392 final int userHandle = UserHandle.getCallingUserId(); 7393 synchronized (this) { 7394 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7395 7396 long id = mInjector.binderClearCallingIdentity(); 7397 try { 7398 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 7399 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 7400 } catch (RemoteException re) { 7401 // Shouldn't happen 7402 } finally { 7403 mInjector.binderRestoreCallingIdentity(id); 7404 } 7405 } 7406 } 7407 7408 @Override 7409 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 7410 Preconditions.checkNotNull(who, "ComponentName is null"); 7411 final int userHandle = UserHandle.getCallingUserId(); 7412 synchronized (this) { 7413 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7414 7415 long id = mInjector.binderClearCallingIdentity(); 7416 try { 7417 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 7418 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 7419 } catch (RemoteException re) { 7420 // Shouldn't happen 7421 } finally { 7422 mInjector.binderRestoreCallingIdentity(id); 7423 } 7424 } 7425 } 7426 7427 @Override 7428 public boolean setApplicationRestrictionsManagingPackage(ComponentName admin, 7429 String packageName) { 7430 try { 7431 setDelegatedScopePreO(admin, packageName, DELEGATION_APP_RESTRICTIONS); 7432 } catch (IllegalArgumentException e) { 7433 return false; 7434 } 7435 return true; 7436 } 7437 7438 @Override 7439 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 7440 final List<String> delegatePackages = getDelegatePackages(admin, 7441 DELEGATION_APP_RESTRICTIONS); 7442 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 7443 } 7444 7445 @Override 7446 public boolean isCallerApplicationRestrictionsManagingPackage(String callerPackage) { 7447 return isCallerDelegate(callerPackage, DELEGATION_APP_RESTRICTIONS); 7448 } 7449 7450 @Override 7451 public void setApplicationRestrictions(ComponentName who, String callerPackage, 7452 String packageName, Bundle settings) { 7453 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 7454 DELEGATION_APP_RESTRICTIONS); 7455 7456 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 7457 final long id = mInjector.binderClearCallingIdentity(); 7458 try { 7459 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 7460 } finally { 7461 mInjector.binderRestoreCallingIdentity(id); 7462 } 7463 } 7464 7465 @Override 7466 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 7467 PersistableBundle args, boolean parent) { 7468 if (!mHasFeature) { 7469 return; 7470 } 7471 Preconditions.checkNotNull(admin, "admin is null"); 7472 Preconditions.checkNotNull(agent, "agent is null"); 7473 final int userHandle = UserHandle.getCallingUserId(); 7474 synchronized (this) { 7475 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 7476 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 7477 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 7478 saveSettingsLocked(userHandle); 7479 } 7480 } 7481 7482 @Override 7483 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 7484 ComponentName agent, int userHandle, boolean parent) { 7485 if (!mHasFeature) { 7486 return null; 7487 } 7488 Preconditions.checkNotNull(agent, "agent null"); 7489 enforceFullCrossUsersPermission(userHandle); 7490 7491 synchronized (this) { 7492 final String componentName = agent.flattenToString(); 7493 if (admin != null) { 7494 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle, parent); 7495 if (ap == null) return null; 7496 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 7497 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 7498 List<PersistableBundle> result = new ArrayList<>(); 7499 result.add(trustAgentInfo.options); 7500 return result; 7501 } 7502 7503 // Return strictest policy for this user and profiles that are visible from this user. 7504 List<PersistableBundle> result = null; 7505 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 7506 // of the options. If any admin doesn't have options, discard options for the rest 7507 // and return null. 7508 List<ActiveAdmin> admins = 7509 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 7510 boolean allAdminsHaveOptions = true; 7511 final int N = admins.size(); 7512 for (int i = 0; i < N; i++) { 7513 final ActiveAdmin active = admins.get(i); 7514 7515 final boolean disablesTrust = (active.disabledKeyguardFeatures 7516 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 7517 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 7518 if (info != null && info.options != null && !info.options.isEmpty()) { 7519 if (disablesTrust) { 7520 if (result == null) { 7521 result = new ArrayList<>(); 7522 } 7523 result.add(info.options); 7524 } else { 7525 Log.w(LOG_TAG, "Ignoring admin " + active.info 7526 + " because it has trust options but doesn't declare " 7527 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 7528 } 7529 } else if (disablesTrust) { 7530 allAdminsHaveOptions = false; 7531 break; 7532 } 7533 } 7534 return allAdminsHaveOptions ? result : null; 7535 } 7536 } 7537 7538 @Override 7539 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 7540 Preconditions.checkNotNull(who, "ComponentName is null"); 7541 synchronized (this) { 7542 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7543 7544 int userHandle = UserHandle.getCallingUserId(); 7545 DevicePolicyData userData = getUserData(userHandle); 7546 userData.mRestrictionsProvider = permissionProvider; 7547 saveSettingsLocked(userHandle); 7548 } 7549 } 7550 7551 @Override 7552 public ComponentName getRestrictionsProvider(int userHandle) { 7553 synchronized (this) { 7554 if (!isCallerWithSystemUid()) { 7555 throw new SecurityException("Only the system can query the permission provider"); 7556 } 7557 DevicePolicyData userData = getUserData(userHandle); 7558 return userData != null ? userData.mRestrictionsProvider : null; 7559 } 7560 } 7561 7562 @Override 7563 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 7564 Preconditions.checkNotNull(who, "ComponentName is null"); 7565 int callingUserId = UserHandle.getCallingUserId(); 7566 synchronized (this) { 7567 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7568 7569 long id = mInjector.binderClearCallingIdentity(); 7570 try { 7571 UserInfo parent = mUserManager.getProfileParent(callingUserId); 7572 if (parent == null) { 7573 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 7574 + "parent"); 7575 return; 7576 } 7577 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 7578 mIPackageManager.addCrossProfileIntentFilter( 7579 filter, who.getPackageName(), callingUserId, parent.id, 0); 7580 } 7581 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 7582 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 7583 parent.id, callingUserId, 0); 7584 } 7585 } catch (RemoteException re) { 7586 // Shouldn't happen 7587 } finally { 7588 mInjector.binderRestoreCallingIdentity(id); 7589 } 7590 } 7591 } 7592 7593 @Override 7594 public void clearCrossProfileIntentFilters(ComponentName who) { 7595 Preconditions.checkNotNull(who, "ComponentName is null"); 7596 int callingUserId = UserHandle.getCallingUserId(); 7597 synchronized (this) { 7598 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7599 long id = mInjector.binderClearCallingIdentity(); 7600 try { 7601 UserInfo parent = mUserManager.getProfileParent(callingUserId); 7602 if (parent == null) { 7603 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 7604 + "parent"); 7605 return; 7606 } 7607 // Removing those that go from the managed profile to the parent. 7608 mIPackageManager.clearCrossProfileIntentFilters( 7609 callingUserId, who.getPackageName()); 7610 // And those that go from the parent to the managed profile. 7611 // If we want to support multiple managed profiles, we will have to only remove 7612 // those that have callingUserId as their target. 7613 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 7614 } catch (RemoteException re) { 7615 // Shouldn't happen 7616 } finally { 7617 mInjector.binderRestoreCallingIdentity(id); 7618 } 7619 } 7620 } 7621 7622 /** 7623 * @return true if all packages in enabledPackages are either in the list 7624 * permittedList or are a system app. 7625 */ 7626 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 7627 List<String> permittedList, int userIdToCheck) { 7628 long id = mInjector.binderClearCallingIdentity(); 7629 try { 7630 // If we have an enabled packages list for a managed profile the packages 7631 // we should check are installed for the parent user. 7632 UserInfo user = getUserInfo(userIdToCheck); 7633 if (user.isManagedProfile()) { 7634 userIdToCheck = user.profileGroupId; 7635 } 7636 7637 for (String enabledPackage : enabledPackages) { 7638 boolean systemService = false; 7639 try { 7640 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 7641 enabledPackage, PackageManager.MATCH_UNINSTALLED_PACKAGES, 7642 userIdToCheck); 7643 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 7644 } catch (RemoteException e) { 7645 Log.i(LOG_TAG, "Can't talk to package managed", e); 7646 } 7647 if (!systemService && !permittedList.contains(enabledPackage)) { 7648 return false; 7649 } 7650 } 7651 } finally { 7652 mInjector.binderRestoreCallingIdentity(id); 7653 } 7654 return true; 7655 } 7656 7657 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 7658 // Not using AccessibilityManager.getInstance because that guesses 7659 // at the user you require based on callingUid and caches for a given 7660 // process. 7661 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 7662 IAccessibilityManager service = iBinder == null 7663 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 7664 return new AccessibilityManager(mContext, service, userId); 7665 } 7666 7667 @Override 7668 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 7669 if (!mHasFeature) { 7670 return false; 7671 } 7672 Preconditions.checkNotNull(who, "ComponentName is null"); 7673 7674 if (packageList != null) { 7675 int userId = UserHandle.getCallingUserId(); 7676 List<AccessibilityServiceInfo> enabledServices = null; 7677 long id = mInjector.binderClearCallingIdentity(); 7678 try { 7679 UserInfo user = getUserInfo(userId); 7680 if (user.isManagedProfile()) { 7681 userId = user.profileGroupId; 7682 } 7683 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 7684 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 7685 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 7686 } finally { 7687 mInjector.binderRestoreCallingIdentity(id); 7688 } 7689 7690 if (enabledServices != null) { 7691 List<String> enabledPackages = new ArrayList<String>(); 7692 for (AccessibilityServiceInfo service : enabledServices) { 7693 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 7694 } 7695 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7696 userId)) { 7697 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 7698 + "because it contains already enabled accesibility services."); 7699 return false; 7700 } 7701 } 7702 } 7703 7704 synchronized (this) { 7705 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7706 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7707 admin.permittedAccessiblityServices = packageList; 7708 saveSettingsLocked(UserHandle.getCallingUserId()); 7709 } 7710 return true; 7711 } 7712 7713 @Override 7714 public List getPermittedAccessibilityServices(ComponentName who) { 7715 if (!mHasFeature) { 7716 return null; 7717 } 7718 Preconditions.checkNotNull(who, "ComponentName is null"); 7719 7720 synchronized (this) { 7721 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7722 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7723 return admin.permittedAccessiblityServices; 7724 } 7725 } 7726 7727 @Override 7728 public List getPermittedAccessibilityServicesForUser(int userId) { 7729 if (!mHasFeature) { 7730 return null; 7731 } 7732 synchronized (this) { 7733 List<String> result = null; 7734 // If we have multiple profiles we return the intersection of the 7735 // permitted lists. This can happen in cases where we have a device 7736 // and profile owner. 7737 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 7738 for (int profileId : profileIds) { 7739 // Just loop though all admins, only device or profiles 7740 // owners can have permitted lists set. 7741 DevicePolicyData policy = getUserDataUnchecked(profileId); 7742 final int N = policy.mAdminList.size(); 7743 for (int j = 0; j < N; j++) { 7744 ActiveAdmin admin = policy.mAdminList.get(j); 7745 List<String> fromAdmin = admin.permittedAccessiblityServices; 7746 if (fromAdmin != null) { 7747 if (result == null) { 7748 result = new ArrayList<>(fromAdmin); 7749 } else { 7750 result.retainAll(fromAdmin); 7751 } 7752 } 7753 } 7754 } 7755 7756 // If we have a permitted list add all system accessibility services. 7757 if (result != null) { 7758 long id = mInjector.binderClearCallingIdentity(); 7759 try { 7760 UserInfo user = getUserInfo(userId); 7761 if (user.isManagedProfile()) { 7762 userId = user.profileGroupId; 7763 } 7764 AccessibilityManager accessibilityManager = 7765 getAccessibilityManagerForUser(userId); 7766 List<AccessibilityServiceInfo> installedServices = 7767 accessibilityManager.getInstalledAccessibilityServiceList(); 7768 7769 if (installedServices != null) { 7770 for (AccessibilityServiceInfo service : installedServices) { 7771 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 7772 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7773 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7774 result.add(serviceInfo.packageName); 7775 } 7776 } 7777 } 7778 } finally { 7779 mInjector.binderRestoreCallingIdentity(id); 7780 } 7781 } 7782 7783 return result; 7784 } 7785 } 7786 7787 @Override 7788 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 7789 int userHandle) { 7790 if (!mHasFeature) { 7791 return true; 7792 } 7793 Preconditions.checkNotNull(who, "ComponentName is null"); 7794 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7795 if (!isCallerWithSystemUid()){ 7796 throw new SecurityException( 7797 "Only the system can query if an accessibility service is disabled by admin"); 7798 } 7799 synchronized (this) { 7800 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7801 if (admin == null) { 7802 return false; 7803 } 7804 if (admin.permittedAccessiblityServices == null) { 7805 return true; 7806 } 7807 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 7808 admin.permittedAccessiblityServices, userHandle); 7809 } 7810 } 7811 7812 private boolean checkCallerIsCurrentUserOrProfile() { 7813 int callingUserId = UserHandle.getCallingUserId(); 7814 long token = mInjector.binderClearCallingIdentity(); 7815 try { 7816 UserInfo currentUser; 7817 UserInfo callingUser = getUserInfo(callingUserId); 7818 try { 7819 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7820 } catch (RemoteException e) { 7821 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 7822 return false; 7823 } 7824 7825 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 7826 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 7827 + "of a user that isn't the foreground user."); 7828 return false; 7829 } 7830 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 7831 Slog.e(LOG_TAG, "Cannot set permitted input methods " 7832 + "of a user that isn't the foreground user."); 7833 return false; 7834 } 7835 } finally { 7836 mInjector.binderRestoreCallingIdentity(token); 7837 } 7838 return true; 7839 } 7840 7841 @Override 7842 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 7843 if (!mHasFeature) { 7844 return false; 7845 } 7846 Preconditions.checkNotNull(who, "ComponentName is null"); 7847 7848 // TODO When InputMethodManager supports per user calls remove 7849 // this restriction. 7850 if (!checkCallerIsCurrentUserOrProfile()) { 7851 return false; 7852 } 7853 7854 if (packageList != null) { 7855 // InputMethodManager fetches input methods for current user. 7856 // So this can only be set when calling user is the current user 7857 // or parent is current user in case of managed profiles. 7858 InputMethodManager inputMethodManager = 7859 mContext.getSystemService(InputMethodManager.class); 7860 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 7861 7862 if (enabledImes != null) { 7863 List<String> enabledPackages = new ArrayList<String>(); 7864 for (InputMethodInfo ime : enabledImes) { 7865 enabledPackages.add(ime.getPackageName()); 7866 } 7867 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7868 mInjector.binderGetCallingUserHandle().getIdentifier())) { 7869 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 7870 + "because it contains already enabled input method."); 7871 return false; 7872 } 7873 } 7874 } 7875 7876 synchronized (this) { 7877 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7878 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7879 admin.permittedInputMethods = packageList; 7880 saveSettingsLocked(UserHandle.getCallingUserId()); 7881 } 7882 return true; 7883 } 7884 7885 @Override 7886 public List getPermittedInputMethods(ComponentName who) { 7887 if (!mHasFeature) { 7888 return null; 7889 } 7890 Preconditions.checkNotNull(who, "ComponentName is null"); 7891 7892 synchronized (this) { 7893 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7894 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7895 return admin.permittedInputMethods; 7896 } 7897 } 7898 7899 @Override 7900 public List getPermittedInputMethodsForCurrentUser() { 7901 UserInfo currentUser; 7902 try { 7903 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7904 } catch (RemoteException e) { 7905 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 7906 // Activity managed is dead, just allow all IMEs 7907 return null; 7908 } 7909 7910 int userId = currentUser.id; 7911 synchronized (this) { 7912 List<String> result = null; 7913 // If we have multiple profiles we return the intersection of the 7914 // permitted lists. This can happen in cases where we have a device 7915 // and profile owner. 7916 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 7917 for (int profileId : profileIds) { 7918 // Just loop though all admins, only device or profiles 7919 // owners can have permitted lists set. 7920 DevicePolicyData policy = getUserDataUnchecked(profileId); 7921 final int N = policy.mAdminList.size(); 7922 for (int j = 0; j < N; j++) { 7923 ActiveAdmin admin = policy.mAdminList.get(j); 7924 List<String> fromAdmin = admin.permittedInputMethods; 7925 if (fromAdmin != null) { 7926 if (result == null) { 7927 result = new ArrayList<String>(fromAdmin); 7928 } else { 7929 result.retainAll(fromAdmin); 7930 } 7931 } 7932 } 7933 } 7934 7935 // If we have a permitted list add all system input methods. 7936 if (result != null) { 7937 InputMethodManager inputMethodManager = 7938 mContext.getSystemService(InputMethodManager.class); 7939 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 7940 long id = mInjector.binderClearCallingIdentity(); 7941 try { 7942 if (imes != null) { 7943 for (InputMethodInfo ime : imes) { 7944 ServiceInfo serviceInfo = ime.getServiceInfo(); 7945 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7946 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7947 result.add(serviceInfo.packageName); 7948 } 7949 } 7950 } 7951 } finally { 7952 mInjector.binderRestoreCallingIdentity(id); 7953 } 7954 } 7955 return result; 7956 } 7957 } 7958 7959 @Override 7960 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 7961 int userHandle) { 7962 if (!mHasFeature) { 7963 return true; 7964 } 7965 Preconditions.checkNotNull(who, "ComponentName is null"); 7966 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7967 if (!isCallerWithSystemUid()) { 7968 throw new SecurityException( 7969 "Only the system can query if an input method is disabled by admin"); 7970 } 7971 synchronized (this) { 7972 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7973 if (admin == null) { 7974 return false; 7975 } 7976 if (admin.permittedInputMethods == null) { 7977 return true; 7978 } 7979 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 7980 admin.permittedInputMethods, userHandle); 7981 } 7982 } 7983 7984 private void sendAdminEnabledBroadcastLocked(int userHandle) { 7985 DevicePolicyData policyData = getUserData(userHandle); 7986 if (policyData.mAdminBroadcastPending) { 7987 // Send the initialization data to profile owner and delete the data 7988 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 7989 if (admin != null) { 7990 PersistableBundle initBundle = policyData.mInitBundle; 7991 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 7992 initBundle == null ? null : new Bundle(initBundle), null); 7993 } 7994 policyData.mInitBundle = null; 7995 policyData.mAdminBroadcastPending = false; 7996 saveSettingsLocked(userHandle); 7997 } 7998 } 7999 8000 @Override 8001 public UserHandle createAndManageUser(ComponentName admin, String name, 8002 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 8003 Preconditions.checkNotNull(admin, "admin is null"); 8004 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 8005 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 8006 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 8007 + admin + " are not in the same package"); 8008 } 8009 // Only allow the system user to use this method 8010 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 8011 throw new SecurityException("createAndManageUser was called from non-system user"); 8012 } 8013 if (!mInjector.userManagerIsSplitSystemUser() 8014 && (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 8015 throw new IllegalArgumentException( 8016 "Ephemeral users are only supported on systems with a split system user."); 8017 } 8018 // Create user. 8019 UserHandle user = null; 8020 synchronized (this) { 8021 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8022 8023 final long id = mInjector.binderClearCallingIdentity(); 8024 try { 8025 int userInfoFlags = 0; 8026 if ((flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 8027 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 8028 } 8029 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 8030 userInfoFlags); 8031 if (userInfo != null) { 8032 user = userInfo.getUserHandle(); 8033 } 8034 } finally { 8035 mInjector.binderRestoreCallingIdentity(id); 8036 } 8037 } 8038 if (user == null) { 8039 return null; 8040 } 8041 // Set admin. 8042 final long id = mInjector.binderClearCallingIdentity(); 8043 try { 8044 final String adminPkg = admin.getPackageName(); 8045 8046 final int userHandle = user.getIdentifier(); 8047 try { 8048 // Install the profile owner if not present. 8049 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 8050 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle, 8051 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8052 } 8053 } catch (RemoteException e) { 8054 Slog.e(LOG_TAG, "Failed to make remote calls for createAndManageUser, " 8055 + "removing created user", e); 8056 mUserManager.removeUser(user.getIdentifier()); 8057 return null; 8058 } 8059 8060 setActiveAdmin(profileOwner, true, userHandle); 8061 // User is not started yet, the broadcast by setActiveAdmin will not be received. 8062 // So we store adminExtras for broadcasting when the user starts for first time. 8063 synchronized(this) { 8064 DevicePolicyData policyData = getUserData(userHandle); 8065 policyData.mInitBundle = adminExtras; 8066 policyData.mAdminBroadcastPending = true; 8067 saveSettingsLocked(userHandle); 8068 } 8069 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 8070 setProfileOwner(profileOwner, ownerName, userHandle); 8071 8072 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 8073 Settings.Secure.putIntForUser(mContext.getContentResolver(), 8074 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 8075 } 8076 8077 return user; 8078 } finally { 8079 mInjector.binderRestoreCallingIdentity(id); 8080 } 8081 } 8082 8083 @Override 8084 public boolean removeUser(ComponentName who, UserHandle userHandle) { 8085 Preconditions.checkNotNull(who, "ComponentName is null"); 8086 synchronized (this) { 8087 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8088 } 8089 8090 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8091 final long id = mInjector.binderClearCallingIdentity(); 8092 try { 8093 String restriction = isManagedProfile(userHandle.getIdentifier()) 8094 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE 8095 : UserManager.DISALLOW_REMOVE_USER; 8096 if (isAdminAffectedByRestriction(who, restriction, callingUserId)) { 8097 Log.w(LOG_TAG, "The device owner cannot remove a user because " 8098 + restriction + " is enabled, and was not set by the device owner"); 8099 return false; 8100 } 8101 return mUserManagerInternal.removeUserEvenWhenDisallowed(userHandle.getIdentifier()); 8102 } finally { 8103 mInjector.binderRestoreCallingIdentity(id); 8104 } 8105 } 8106 8107 private boolean isAdminAffectedByRestriction( 8108 ComponentName admin, String userRestriction, int userId) { 8109 switch(mUserManager.getUserRestrictionSource(userRestriction, UserHandle.of(userId))) { 8110 case UserManager.RESTRICTION_NOT_SET: 8111 return false; 8112 case UserManager.RESTRICTION_SOURCE_DEVICE_OWNER: 8113 return !isDeviceOwner(admin, userId); 8114 case UserManager.RESTRICTION_SOURCE_PROFILE_OWNER: 8115 return !isProfileOwner(admin, userId); 8116 default: 8117 return true; 8118 } 8119 } 8120 8121 @Override 8122 public boolean switchUser(ComponentName who, UserHandle userHandle) { 8123 Preconditions.checkNotNull(who, "ComponentName is null"); 8124 synchronized (this) { 8125 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8126 8127 long id = mInjector.binderClearCallingIdentity(); 8128 try { 8129 int userId = UserHandle.USER_SYSTEM; 8130 if (userHandle != null) { 8131 userId = userHandle.getIdentifier(); 8132 } 8133 return mInjector.getIActivityManager().switchUser(userId); 8134 } catch (RemoteException e) { 8135 Log.e(LOG_TAG, "Couldn't switch user", e); 8136 return false; 8137 } finally { 8138 mInjector.binderRestoreCallingIdentity(id); 8139 } 8140 } 8141 } 8142 8143 @Override 8144 public Bundle getApplicationRestrictions(ComponentName who, String callerPackage, 8145 String packageName) { 8146 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8147 DELEGATION_APP_RESTRICTIONS); 8148 8149 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 8150 final long id = mInjector.binderClearCallingIdentity(); 8151 try { 8152 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 8153 // if no restrictions were saved, mUserManager.getApplicationRestrictions 8154 // returns null, but DPM method should return an empty Bundle as per JavaDoc 8155 return bundle != null ? bundle : Bundle.EMPTY; 8156 } finally { 8157 mInjector.binderRestoreCallingIdentity(id); 8158 } 8159 } 8160 8161 @Override 8162 public String[] setPackagesSuspended(ComponentName who, String callerPackage, 8163 String[] packageNames, boolean suspended) { 8164 int callingUserId = UserHandle.getCallingUserId(); 8165 synchronized (this) { 8166 // Ensure the caller is a DO/PO or a package access delegate. 8167 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8168 DELEGATION_PACKAGE_ACCESS); 8169 8170 long id = mInjector.binderClearCallingIdentity(); 8171 try { 8172 return mIPackageManager.setPackagesSuspendedAsUser( 8173 packageNames, suspended, callingUserId); 8174 } catch (RemoteException re) { 8175 // Shouldn't happen. 8176 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 8177 } finally { 8178 mInjector.binderRestoreCallingIdentity(id); 8179 } 8180 return packageNames; 8181 } 8182 } 8183 8184 @Override 8185 public boolean isPackageSuspended(ComponentName who, String callerPackage, String packageName) { 8186 int callingUserId = UserHandle.getCallingUserId(); 8187 synchronized (this) { 8188 // Ensure the caller is a DO/PO or a package access delegate. 8189 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8190 DELEGATION_PACKAGE_ACCESS); 8191 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8192 8193 long id = mInjector.binderClearCallingIdentity(); 8194 try { 8195 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 8196 } catch (RemoteException re) { 8197 // Shouldn't happen. 8198 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 8199 } finally { 8200 mInjector.binderRestoreCallingIdentity(id); 8201 } 8202 return false; 8203 } 8204 } 8205 8206 @Override 8207 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 8208 Preconditions.checkNotNull(who, "ComponentName is null"); 8209 if (!UserRestrictionsUtils.isValidRestriction(key)) { 8210 return; 8211 } 8212 8213 final int userHandle = mInjector.userHandleGetCallingUserId(); 8214 synchronized (this) { 8215 final ActiveAdmin activeAdmin = 8216 getActiveAdminForCallerLocked(who, 8217 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8218 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 8219 if (isDeviceOwner) { 8220 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 8221 throw new SecurityException("Device owner cannot set user restriction " + key); 8222 } 8223 } else { // profile owner 8224 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 8225 throw new SecurityException("Profile owner cannot set user restriction " + key); 8226 } 8227 } 8228 8229 // Save the restriction to ActiveAdmin. 8230 final Bundle restrictions = activeAdmin.ensureUserRestrictions(); 8231 if (enabledFromThisOwner) { 8232 restrictions.putBoolean(key, true); 8233 } else { 8234 restrictions.remove(key); 8235 } 8236 saveUserRestrictionsLocked(userHandle); 8237 } 8238 } 8239 8240 private void saveUserRestrictionsLocked(int userId) { 8241 saveSettingsLocked(userId); 8242 pushUserRestrictions(userId); 8243 sendChangedNotification(userId); 8244 } 8245 8246 private void pushUserRestrictions(int userId) { 8247 synchronized (this) { 8248 final boolean isDeviceOwner = mOwners.isDeviceOwnerUserId(userId); 8249 final Bundle userRestrictions; 8250 // Whether device owner enforces camera restriction. 8251 boolean disallowCameraGlobally = false; 8252 8253 if (isDeviceOwner) { 8254 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 8255 if (deviceOwner == null) { 8256 return; // Shouldn't happen. 8257 } 8258 userRestrictions = deviceOwner.userRestrictions; 8259 // DO can disable camera globally. 8260 disallowCameraGlobally = deviceOwner.disableCamera; 8261 } else { 8262 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 8263 userRestrictions = profileOwner != null ? profileOwner.userRestrictions : null; 8264 } 8265 8266 // Whether any admin enforces camera restriction. 8267 final int cameraRestrictionScope = 8268 getCameraRestrictionScopeLocked(userId, disallowCameraGlobally); 8269 8270 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, userRestrictions, 8271 isDeviceOwner, cameraRestrictionScope); 8272 } 8273 } 8274 8275 /** 8276 * Get the scope of camera restriction for a given user if any. 8277 */ 8278 private int getCameraRestrictionScopeLocked(int userId, boolean disallowCameraGlobally) { 8279 if (disallowCameraGlobally) { 8280 return UserManagerInternal.CAMERA_DISABLED_GLOBALLY; 8281 } else if (getCameraDisabled( 8282 /* who= */ null, userId, /* mergeDeviceOwnerRestriction= */ false)) { 8283 return UserManagerInternal.CAMERA_DISABLED_LOCALLY; 8284 } 8285 return UserManagerInternal.CAMERA_NOT_DISABLED; 8286 } 8287 8288 @Override 8289 public Bundle getUserRestrictions(ComponentName who) { 8290 if (!mHasFeature) { 8291 return null; 8292 } 8293 Preconditions.checkNotNull(who, "ComponentName is null"); 8294 synchronized (this) { 8295 final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who, 8296 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8297 return activeAdmin.userRestrictions; 8298 } 8299 } 8300 8301 @Override 8302 public boolean setApplicationHidden(ComponentName who, String callerPackage, String packageName, 8303 boolean hidden) { 8304 int callingUserId = UserHandle.getCallingUserId(); 8305 synchronized (this) { 8306 // Ensure the caller is a DO/PO or a package access delegate. 8307 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8308 DELEGATION_PACKAGE_ACCESS); 8309 8310 long id = mInjector.binderClearCallingIdentity(); 8311 try { 8312 return mIPackageManager.setApplicationHiddenSettingAsUser( 8313 packageName, hidden, callingUserId); 8314 } catch (RemoteException re) { 8315 // shouldn't happen 8316 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 8317 } finally { 8318 mInjector.binderRestoreCallingIdentity(id); 8319 } 8320 return false; 8321 } 8322 } 8323 8324 @Override 8325 public boolean isApplicationHidden(ComponentName who, String callerPackage, 8326 String packageName) { 8327 int callingUserId = UserHandle.getCallingUserId(); 8328 synchronized (this) { 8329 // Ensure the caller is a DO/PO or a package access delegate. 8330 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8331 DELEGATION_PACKAGE_ACCESS); 8332 8333 long id = mInjector.binderClearCallingIdentity(); 8334 try { 8335 return mIPackageManager.getApplicationHiddenSettingAsUser( 8336 packageName, callingUserId); 8337 } catch (RemoteException re) { 8338 // shouldn't happen 8339 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 8340 } finally { 8341 mInjector.binderRestoreCallingIdentity(id); 8342 } 8343 return false; 8344 } 8345 } 8346 8347 @Override 8348 public void enableSystemApp(ComponentName who, String callerPackage, String packageName) { 8349 synchronized (this) { 8350 // Ensure the caller is a DO/PO or an enable system app delegate. 8351 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8352 DELEGATION_ENABLE_SYSTEM_APP); 8353 8354 int userId = UserHandle.getCallingUserId(); 8355 long id = mInjector.binderClearCallingIdentity(); 8356 8357 try { 8358 if (VERBOSE_LOG) { 8359 Slog.v(LOG_TAG, "installing " + packageName + " for " 8360 + userId); 8361 } 8362 8363 int parentUserId = getProfileParentId(userId); 8364 if (!isSystemApp(mIPackageManager, packageName, parentUserId)) { 8365 throw new IllegalArgumentException("Only system apps can be enabled this way."); 8366 } 8367 8368 // Install the app. 8369 mIPackageManager.installExistingPackageAsUser(packageName, userId, 8370 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8371 8372 } catch (RemoteException re) { 8373 // shouldn't happen 8374 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 8375 } finally { 8376 mInjector.binderRestoreCallingIdentity(id); 8377 } 8378 } 8379 } 8380 8381 @Override 8382 public int enableSystemAppWithIntent(ComponentName who, String callerPackage, Intent intent) { 8383 synchronized (this) { 8384 // Ensure the caller is a DO/PO or an enable system app delegate. 8385 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8386 DELEGATION_ENABLE_SYSTEM_APP); 8387 8388 int userId = UserHandle.getCallingUserId(); 8389 long id = mInjector.binderClearCallingIdentity(); 8390 8391 try { 8392 int parentUserId = getProfileParentId(userId); 8393 List<ResolveInfo> activitiesToEnable = mIPackageManager 8394 .queryIntentActivities(intent, 8395 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 8396 PackageManager.MATCH_DIRECT_BOOT_AWARE 8397 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 8398 parentUserId) 8399 .getList(); 8400 8401 if (VERBOSE_LOG) { 8402 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 8403 } 8404 int numberOfAppsInstalled = 0; 8405 if (activitiesToEnable != null) { 8406 for (ResolveInfo info : activitiesToEnable) { 8407 if (info.activityInfo != null) { 8408 String packageName = info.activityInfo.packageName; 8409 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 8410 numberOfAppsInstalled++; 8411 mIPackageManager.installExistingPackageAsUser(packageName, userId, 8412 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8413 } else { 8414 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 8415 + " system app"); 8416 } 8417 } 8418 } 8419 } 8420 return numberOfAppsInstalled; 8421 } catch (RemoteException e) { 8422 // shouldn't happen 8423 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 8424 return 0; 8425 } finally { 8426 mInjector.binderRestoreCallingIdentity(id); 8427 } 8428 } 8429 } 8430 8431 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 8432 throws RemoteException { 8433 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, MATCH_UNINSTALLED_PACKAGES, 8434 userId); 8435 if (appInfo == null) { 8436 throw new IllegalArgumentException("The application " + packageName + 8437 " is not present on this device"); 8438 } 8439 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 8440 } 8441 8442 @Override 8443 public void setAccountManagementDisabled(ComponentName who, String accountType, 8444 boolean disabled) { 8445 if (!mHasFeature) { 8446 return; 8447 } 8448 Preconditions.checkNotNull(who, "ComponentName is null"); 8449 synchronized (this) { 8450 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 8451 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8452 if (disabled) { 8453 ap.accountTypesWithManagementDisabled.add(accountType); 8454 } else { 8455 ap.accountTypesWithManagementDisabled.remove(accountType); 8456 } 8457 saveSettingsLocked(UserHandle.getCallingUserId()); 8458 } 8459 } 8460 8461 @Override 8462 public String[] getAccountTypesWithManagementDisabled() { 8463 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 8464 } 8465 8466 @Override 8467 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 8468 enforceFullCrossUsersPermission(userId); 8469 if (!mHasFeature) { 8470 return null; 8471 } 8472 synchronized (this) { 8473 DevicePolicyData policy = getUserData(userId); 8474 final int N = policy.mAdminList.size(); 8475 ArraySet<String> resultSet = new ArraySet<>(); 8476 for (int i = 0; i < N; i++) { 8477 ActiveAdmin admin = policy.mAdminList.get(i); 8478 resultSet.addAll(admin.accountTypesWithManagementDisabled); 8479 } 8480 return resultSet.toArray(new String[resultSet.size()]); 8481 } 8482 } 8483 8484 @Override 8485 public void setUninstallBlocked(ComponentName who, String callerPackage, String packageName, 8486 boolean uninstallBlocked) { 8487 final int userId = UserHandle.getCallingUserId(); 8488 synchronized (this) { 8489 // Ensure the caller is a DO/PO or a block uninstall delegate 8490 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8491 DELEGATION_BLOCK_UNINSTALL); 8492 8493 long id = mInjector.binderClearCallingIdentity(); 8494 try { 8495 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 8496 } catch (RemoteException re) { 8497 // Shouldn't happen. 8498 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 8499 } finally { 8500 mInjector.binderRestoreCallingIdentity(id); 8501 } 8502 } 8503 } 8504 8505 @Override 8506 public boolean isUninstallBlocked(ComponentName who, String packageName) { 8507 // This function should return true if and only if the package is blocked by 8508 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 8509 // when the package is a system app, or when it is an active device admin. 8510 final int userId = UserHandle.getCallingUserId(); 8511 8512 synchronized (this) { 8513 if (who != null) { 8514 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8515 } 8516 8517 long id = mInjector.binderClearCallingIdentity(); 8518 try { 8519 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 8520 } catch (RemoteException re) { 8521 // Shouldn't happen. 8522 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 8523 } finally { 8524 mInjector.binderRestoreCallingIdentity(id); 8525 } 8526 } 8527 return false; 8528 } 8529 8530 @Override 8531 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 8532 if (!mHasFeature) { 8533 return; 8534 } 8535 Preconditions.checkNotNull(who, "ComponentName is null"); 8536 synchronized (this) { 8537 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8538 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8539 if (admin.disableCallerId != disabled) { 8540 admin.disableCallerId = disabled; 8541 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 8542 } 8543 } 8544 } 8545 8546 @Override 8547 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 8548 if (!mHasFeature) { 8549 return false; 8550 } 8551 Preconditions.checkNotNull(who, "ComponentName is null"); 8552 synchronized (this) { 8553 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8554 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8555 return admin.disableCallerId; 8556 } 8557 } 8558 8559 @Override 8560 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 8561 enforceCrossUsersPermission(userId); 8562 synchronized (this) { 8563 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8564 return (admin != null) ? admin.disableCallerId : false; 8565 } 8566 } 8567 8568 @Override 8569 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 8570 if (!mHasFeature) { 8571 return; 8572 } 8573 Preconditions.checkNotNull(who, "ComponentName is null"); 8574 synchronized (this) { 8575 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8576 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8577 if (admin.disableContactsSearch != disabled) { 8578 admin.disableContactsSearch = disabled; 8579 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 8580 } 8581 } 8582 } 8583 8584 @Override 8585 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 8586 if (!mHasFeature) { 8587 return false; 8588 } 8589 Preconditions.checkNotNull(who, "ComponentName is null"); 8590 synchronized (this) { 8591 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8592 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8593 return admin.disableContactsSearch; 8594 } 8595 } 8596 8597 @Override 8598 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 8599 enforceCrossUsersPermission(userId); 8600 synchronized (this) { 8601 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8602 return (admin != null) ? admin.disableContactsSearch : false; 8603 } 8604 } 8605 8606 @Override 8607 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 8608 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 8609 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 8610 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 8611 final int callingUserId = UserHandle.getCallingUserId(); 8612 8613 final long ident = mInjector.binderClearCallingIdentity(); 8614 try { 8615 synchronized (this) { 8616 final int managedUserId = getManagedUserId(callingUserId); 8617 if (managedUserId < 0) { 8618 return; 8619 } 8620 if (isCrossProfileQuickContactDisabled(managedUserId)) { 8621 if (VERBOSE_LOG) { 8622 Log.v(LOG_TAG, 8623 "Cross-profile contacts access disabled for user " + managedUserId); 8624 } 8625 return; 8626 } 8627 ContactsInternal.startQuickContactWithErrorToastForUser( 8628 mContext, intent, new UserHandle(managedUserId)); 8629 } 8630 } finally { 8631 mInjector.binderRestoreCallingIdentity(ident); 8632 } 8633 } 8634 8635 /** 8636 * @return true if cross-profile QuickContact is disabled 8637 */ 8638 private boolean isCrossProfileQuickContactDisabled(int userId) { 8639 return getCrossProfileCallerIdDisabledForUser(userId) 8640 && getCrossProfileContactsSearchDisabledForUser(userId); 8641 } 8642 8643 /** 8644 * @return the user ID of the managed user that is linked to the current user, if any. 8645 * Otherwise -1. 8646 */ 8647 public int getManagedUserId(int callingUserId) { 8648 if (VERBOSE_LOG) { 8649 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 8650 } 8651 8652 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 8653 if (ui.id == callingUserId || !ui.isManagedProfile()) { 8654 continue; // Caller user self, or not a managed profile. Skip. 8655 } 8656 if (VERBOSE_LOG) { 8657 Log.v(LOG_TAG, "Managed user=" + ui.id); 8658 } 8659 return ui.id; 8660 } 8661 if (VERBOSE_LOG) { 8662 Log.v(LOG_TAG, "Managed user not found."); 8663 } 8664 return -1; 8665 } 8666 8667 @Override 8668 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 8669 if (!mHasFeature) { 8670 return; 8671 } 8672 Preconditions.checkNotNull(who, "ComponentName is null"); 8673 synchronized (this) { 8674 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8675 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8676 if (admin.disableBluetoothContactSharing != disabled) { 8677 admin.disableBluetoothContactSharing = disabled; 8678 saveSettingsLocked(UserHandle.getCallingUserId()); 8679 } 8680 } 8681 } 8682 8683 @Override 8684 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 8685 if (!mHasFeature) { 8686 return false; 8687 } 8688 Preconditions.checkNotNull(who, "ComponentName is null"); 8689 synchronized (this) { 8690 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8691 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8692 return admin.disableBluetoothContactSharing; 8693 } 8694 } 8695 8696 @Override 8697 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 8698 // TODO: Should there be a check to make sure this relationship is 8699 // within a profile group? 8700 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 8701 synchronized (this) { 8702 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8703 return (admin != null) ? admin.disableBluetoothContactSharing : false; 8704 } 8705 } 8706 8707 @Override 8708 public void setLockTaskPackages(ComponentName who, String[] packages) 8709 throws SecurityException { 8710 Preconditions.checkNotNull(who, "ComponentName is null"); 8711 Preconditions.checkNotNull(packages, "packages is null"); 8712 8713 synchronized (this) { 8714 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8715 final int userHandle = mInjector.userHandleGetCallingUserId(); 8716 if (isUserAffiliatedWithDeviceLocked(userHandle)) { 8717 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 8718 } else { 8719 throw new SecurityException("Admin " + who + 8720 " is neither the device owner or affiliated user's profile owner."); 8721 } 8722 } 8723 } 8724 8725 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 8726 DevicePolicyData policy = getUserData(userHandle); 8727 policy.mLockTaskPackages = packages; 8728 8729 // Store the settings persistently. 8730 saveSettingsLocked(userHandle); 8731 updateLockTaskPackagesLocked(packages, userHandle); 8732 } 8733 8734 private void maybeClearLockTaskPackagesLocked() { 8735 final long ident = mInjector.binderClearCallingIdentity(); 8736 try { 8737 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 8738 for (int i = 0; i < userInfos.size(); i++) { 8739 int userId = userInfos.get(i).id; 8740 final List<String> lockTaskPackages = getUserData(userId).mLockTaskPackages; 8741 if (!lockTaskPackages.isEmpty() && 8742 !isUserAffiliatedWithDeviceLocked(userId)) { 8743 Slog.d(LOG_TAG, 8744 "User id " + userId + " not affiliated. Clearing lock task packages"); 8745 setLockTaskPackagesLocked(userId, Collections.<String>emptyList()); 8746 } 8747 } 8748 } finally { 8749 mInjector.binderRestoreCallingIdentity(ident); 8750 } 8751 } 8752 8753 @Override 8754 public String[] getLockTaskPackages(ComponentName who) { 8755 Preconditions.checkNotNull(who, "ComponentName is null"); 8756 8757 final int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 8758 synchronized (this) { 8759 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8760 if (!isUserAffiliatedWithDeviceLocked(userHandle)) { 8761 throw new SecurityException("Admin " + who + 8762 " is neither the device owner or affiliated user's profile owner."); 8763 } 8764 8765 final List<String> packages = getUserData(userHandle).mLockTaskPackages; 8766 return packages.toArray(new String[packages.size()]); 8767 } 8768 } 8769 8770 @Override 8771 public boolean isLockTaskPermitted(String pkg) { 8772 final int userHandle = mInjector.userHandleGetCallingUserId(); 8773 synchronized (this) { 8774 return getUserData(userHandle).mLockTaskPackages.contains(pkg); 8775 } 8776 } 8777 8778 @Override 8779 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 8780 if (!isCallerWithSystemUid()) { 8781 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 8782 } 8783 synchronized (this) { 8784 final DevicePolicyData policy = getUserData(userHandle); 8785 Bundle adminExtras = new Bundle(); 8786 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 8787 for (ActiveAdmin admin : policy.mAdminList) { 8788 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 8789 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 8790 if (ownsDevice || ownsProfile) { 8791 if (isEnabled) { 8792 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 8793 adminExtras, null); 8794 } else { 8795 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 8796 } 8797 } 8798 } 8799 } 8800 } 8801 8802 @Override 8803 public void setGlobalSetting(ComponentName who, String setting, String value) { 8804 Preconditions.checkNotNull(who, "ComponentName is null"); 8805 8806 synchronized (this) { 8807 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8808 8809 // Some settings are no supported any more. However we do not want to throw a 8810 // SecurityException to avoid breaking apps. 8811 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 8812 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 8813 return; 8814 } 8815 8816 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 8817 throw new SecurityException(String.format( 8818 "Permission denial: device owners cannot update %1$s", setting)); 8819 } 8820 8821 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 8822 // ignore if it contradicts an existing policy 8823 long timeMs = getMaximumTimeToLock( 8824 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 8825 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 8826 return; 8827 } 8828 } 8829 8830 long id = mInjector.binderClearCallingIdentity(); 8831 try { 8832 mInjector.settingsGlobalPutString(setting, value); 8833 } finally { 8834 mInjector.binderRestoreCallingIdentity(id); 8835 } 8836 } 8837 } 8838 8839 @Override 8840 public void setSecureSetting(ComponentName who, String setting, String value) { 8841 Preconditions.checkNotNull(who, "ComponentName is null"); 8842 int callingUserId = mInjector.userHandleGetCallingUserId(); 8843 8844 synchronized (this) { 8845 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8846 8847 if (isDeviceOwner(who, callingUserId)) { 8848 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 8849 throw new SecurityException(String.format( 8850 "Permission denial: Device owners cannot update %1$s", setting)); 8851 } 8852 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 8853 throw new SecurityException(String.format( 8854 "Permission denial: Profile owners cannot update %1$s", setting)); 8855 } 8856 if (setting.equals(Settings.Secure.INSTALL_NON_MARKET_APPS)) { 8857 if (getTargetSdk(who.getPackageName(), callingUserId) >= Build.VERSION_CODES.O) { 8858 throw new UnsupportedOperationException(Settings.Secure.INSTALL_NON_MARKET_APPS 8859 + " is deprecated. Please use the user restriction " 8860 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES + " instead."); 8861 } 8862 if (!mUserManager.isManagedProfile(callingUserId)) { 8863 Slog.e(LOG_TAG, "Ignoring setSecureSetting request for " 8864 + setting + ". User restriction " 8865 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES 8866 + " should be used instead."); 8867 } else { 8868 try { 8869 setUserRestriction(who, UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, 8870 (Integer.parseInt(value) == 0) ? true : false); 8871 } catch (NumberFormatException exc) { 8872 Slog.e(LOG_TAG, "Invalid value: " + value + " for setting " + setting); 8873 } 8874 } 8875 return; 8876 } 8877 long id = mInjector.binderClearCallingIdentity(); 8878 try { 8879 if (Settings.Secure.DEFAULT_INPUT_METHOD.equals(setting)) { 8880 final String currentValue = mInjector.settingsSecureGetStringForUser( 8881 Settings.Secure.DEFAULT_INPUT_METHOD, callingUserId); 8882 if (!TextUtils.equals(currentValue, value)) { 8883 // Tell the content observer that the next change will be due to the owner 8884 // changing the value. There is a small race condition here that we cannot 8885 // avoid: Change notifications are sent asynchronously, so it is possible 8886 // that there are prior notifications queued up before the one we are about 8887 // to trigger. This is a corner case that will have no impact in practice. 8888 mSetupContentObserver.addPendingChangeByOwnerLocked(callingUserId); 8889 } 8890 getUserData(callingUserId).mDefaultInputMethodSet = true; 8891 saveSettingsLocked(callingUserId); 8892 } 8893 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 8894 } finally { 8895 mInjector.binderRestoreCallingIdentity(id); 8896 } 8897 } 8898 } 8899 8900 @Override 8901 public void setMasterVolumeMuted(ComponentName who, boolean on) { 8902 Preconditions.checkNotNull(who, "ComponentName is null"); 8903 synchronized (this) { 8904 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8905 setUserRestriction(who, UserManager.DISALLOW_UNMUTE_DEVICE, on); 8906 } 8907 } 8908 8909 @Override 8910 public boolean isMasterVolumeMuted(ComponentName who) { 8911 Preconditions.checkNotNull(who, "ComponentName is null"); 8912 synchronized (this) { 8913 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8914 8915 AudioManager audioManager = 8916 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 8917 return audioManager.isMasterMute(); 8918 } 8919 } 8920 8921 @Override 8922 public void setUserIcon(ComponentName who, Bitmap icon) { 8923 synchronized (this) { 8924 Preconditions.checkNotNull(who, "ComponentName is null"); 8925 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8926 8927 int userId = UserHandle.getCallingUserId(); 8928 long id = mInjector.binderClearCallingIdentity(); 8929 try { 8930 mUserManagerInternal.setUserIcon(userId, icon); 8931 } finally { 8932 mInjector.binderRestoreCallingIdentity(id); 8933 } 8934 } 8935 } 8936 8937 @Override 8938 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 8939 Preconditions.checkNotNull(who, "ComponentName is null"); 8940 synchronized (this) { 8941 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8942 } 8943 final int userId = UserHandle.getCallingUserId(); 8944 8945 long ident = mInjector.binderClearCallingIdentity(); 8946 try { 8947 // disallow disabling the keyguard if a password is currently set 8948 if (disabled && mLockPatternUtils.isSecure(userId)) { 8949 return false; 8950 } 8951 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 8952 } finally { 8953 mInjector.binderRestoreCallingIdentity(ident); 8954 } 8955 return true; 8956 } 8957 8958 @Override 8959 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 8960 int userId = UserHandle.getCallingUserId(); 8961 synchronized (this) { 8962 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8963 DevicePolicyData policy = getUserData(userId); 8964 if (policy.mStatusBarDisabled != disabled) { 8965 if (!setStatusBarDisabledInternal(disabled, userId)) { 8966 return false; 8967 } 8968 policy.mStatusBarDisabled = disabled; 8969 saveSettingsLocked(userId); 8970 } 8971 } 8972 return true; 8973 } 8974 8975 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 8976 long ident = mInjector.binderClearCallingIdentity(); 8977 try { 8978 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 8979 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 8980 if (statusBarService != null) { 8981 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 8982 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 8983 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 8984 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 8985 return true; 8986 } 8987 } catch (RemoteException e) { 8988 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 8989 } finally { 8990 mInjector.binderRestoreCallingIdentity(ident); 8991 } 8992 return false; 8993 } 8994 8995 /** 8996 * We need to update the internal state of whether a user has completed setup or a 8997 * device has paired once. After that, we ignore any changes that reset the 8998 * Settings.Secure.USER_SETUP_COMPLETE or Settings.Secure.DEVICE_PAIRED change 8999 * as we don't trust any apps that might try to reset them. 9000 * <p> 9001 * Unfortunately, we don't know which user's setup state was changed, so we write all of 9002 * them. 9003 */ 9004 void updateUserSetupCompleteAndPaired() { 9005 List<UserInfo> users = mUserManager.getUsers(true); 9006 final int N = users.size(); 9007 for (int i = 0; i < N; i++) { 9008 int userHandle = users.get(i).id; 9009 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 9010 userHandle) != 0) { 9011 DevicePolicyData policy = getUserData(userHandle); 9012 if (!policy.mUserSetupComplete) { 9013 policy.mUserSetupComplete = true; 9014 synchronized (this) { 9015 saveSettingsLocked(userHandle); 9016 } 9017 } 9018 } 9019 if (mIsWatch && mInjector.settingsSecureGetIntForUser(Settings.Secure.DEVICE_PAIRED, 0, 9020 userHandle) != 0) { 9021 DevicePolicyData policy = getUserData(userHandle); 9022 if (!policy.mPaired) { 9023 policy.mPaired = true; 9024 synchronized (this) { 9025 saveSettingsLocked(userHandle); 9026 } 9027 } 9028 } 9029 } 9030 } 9031 9032 private class SetupContentObserver extends ContentObserver { 9033 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 9034 Settings.Secure.USER_SETUP_COMPLETE); 9035 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 9036 Settings.Global.DEVICE_PROVISIONED); 9037 private final Uri mPaired = Settings.Secure.getUriFor(Settings.Secure.DEVICE_PAIRED); 9038 private final Uri mDefaultImeChanged = Settings.Secure.getUriFor( 9039 Settings.Secure.DEFAULT_INPUT_METHOD); 9040 9041 @GuardedBy("DevicePolicyManagerService.this") 9042 private Set<Integer> mUserIdsWithPendingChangesByOwner = new ArraySet<>(); 9043 9044 public SetupContentObserver(Handler handler) { 9045 super(handler); 9046 } 9047 9048 void register() { 9049 mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 9050 mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 9051 if (mIsWatch) { 9052 mInjector.registerContentObserver(mPaired, false, this, UserHandle.USER_ALL); 9053 } 9054 mInjector.registerContentObserver(mDefaultImeChanged, false, this, UserHandle.USER_ALL); 9055 } 9056 9057 private void addPendingChangeByOwnerLocked(int userId) { 9058 mUserIdsWithPendingChangesByOwner.add(userId); 9059 } 9060 9061 @Override 9062 public void onChange(boolean selfChange, Uri uri, int userId) { 9063 if (mUserSetupComplete.equals(uri) || (mIsWatch && mPaired.equals(uri))) { 9064 updateUserSetupCompleteAndPaired(); 9065 } else if (mDeviceProvisioned.equals(uri)) { 9066 synchronized (DevicePolicyManagerService.this) { 9067 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 9068 // is delayed until device is marked as provisioned. 9069 setDeviceOwnerSystemPropertyLocked(); 9070 } 9071 } else if (mDefaultImeChanged.equals(uri)) { 9072 synchronized (DevicePolicyManagerService.this) { 9073 if (mUserIdsWithPendingChangesByOwner.contains(userId)) { 9074 // This change notification was triggered by the owner changing the default 9075 // IME. Ignore it. 9076 mUserIdsWithPendingChangesByOwner.remove(userId); 9077 } else { 9078 // This change notification was triggered by the user manually changing the 9079 // default IME. 9080 getUserData(userId).mDefaultInputMethodSet = false; 9081 saveSettingsLocked(userId); 9082 } 9083 } 9084 } 9085 } 9086 } 9087 9088 @VisibleForTesting 9089 final class LocalService extends DevicePolicyManagerInternal { 9090 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 9091 9092 @Override 9093 public List<String> getCrossProfileWidgetProviders(int profileId) { 9094 synchronized (DevicePolicyManagerService.this) { 9095 if (mOwners == null) { 9096 return Collections.emptyList(); 9097 } 9098 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 9099 if (ownerComponent == null) { 9100 return Collections.emptyList(); 9101 } 9102 9103 DevicePolicyData policy = getUserDataUnchecked(profileId); 9104 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 9105 9106 if (admin == null || admin.crossProfileWidgetProviders == null 9107 || admin.crossProfileWidgetProviders.isEmpty()) { 9108 return Collections.emptyList(); 9109 } 9110 9111 return admin.crossProfileWidgetProviders; 9112 } 9113 } 9114 9115 @Override 9116 public void addOnCrossProfileWidgetProvidersChangeListener( 9117 OnCrossProfileWidgetProvidersChangeListener listener) { 9118 synchronized (DevicePolicyManagerService.this) { 9119 if (mWidgetProviderListeners == null) { 9120 mWidgetProviderListeners = new ArrayList<>(); 9121 } 9122 if (!mWidgetProviderListeners.contains(listener)) { 9123 mWidgetProviderListeners.add(listener); 9124 } 9125 } 9126 } 9127 9128 @Override 9129 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 9130 synchronized(DevicePolicyManagerService.this) { 9131 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 9132 } 9133 } 9134 9135 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 9136 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 9137 synchronized (DevicePolicyManagerService.this) { 9138 listeners = new ArrayList<>(mWidgetProviderListeners); 9139 } 9140 final int listenerCount = listeners.size(); 9141 for (int i = 0; i < listenerCount; i++) { 9142 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 9143 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 9144 } 9145 } 9146 9147 @Override 9148 public Intent createShowAdminSupportIntent(int userId, boolean useDefaultIfNoAdmin) { 9149 // This method is called from AM with its lock held, so don't take the DPMS lock. 9150 // b/29242568 9151 9152 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 9153 if (profileOwner != null) { 9154 return DevicePolicyManagerService.this 9155 .createShowAdminSupportIntent(profileOwner, userId); 9156 } 9157 9158 final Pair<Integer, ComponentName> deviceOwner = 9159 mOwners.getDeviceOwnerUserIdAndComponent(); 9160 if (deviceOwner != null && deviceOwner.first == userId) { 9161 return DevicePolicyManagerService.this 9162 .createShowAdminSupportIntent(deviceOwner.second, userId); 9163 } 9164 9165 // We're not specifying the device admin because there isn't one. 9166 if (useDefaultIfNoAdmin) { 9167 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 9168 } 9169 return null; 9170 } 9171 9172 @Override 9173 public Intent createUserRestrictionSupportIntent(int userId, String userRestriction) { 9174 int source; 9175 long ident = mInjector.binderClearCallingIdentity(); 9176 try { 9177 source = mUserManager.getUserRestrictionSource(userRestriction, 9178 UserHandle.of(userId)); 9179 } finally { 9180 mInjector.binderRestoreCallingIdentity(ident); 9181 } 9182 if ((source & UserManager.RESTRICTION_SOURCE_SYSTEM) != 0) { 9183 /* 9184 * In this case, the user restriction is enforced by the system. 9185 * So we won't show an admin support intent, even if it is also 9186 * enforced by a profile/device owner. 9187 */ 9188 return null; 9189 } 9190 boolean enforcedByDo = (source & UserManager.RESTRICTION_SOURCE_DEVICE_OWNER) != 0; 9191 boolean enforcedByPo = (source & UserManager.RESTRICTION_SOURCE_PROFILE_OWNER) != 0; 9192 if (enforcedByDo && enforcedByPo) { 9193 // In this case, we'll show an admin support dialog that does not 9194 // specify the admin. 9195 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 9196 } else if (enforcedByPo) { 9197 final ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 9198 if (profileOwner != null) { 9199 return DevicePolicyManagerService.this 9200 .createShowAdminSupportIntent(profileOwner, userId); 9201 } 9202 // This could happen if another thread has changed the profile owner since we called 9203 // getUserRestrictionSource 9204 return null; 9205 } else if (enforcedByDo) { 9206 final Pair<Integer, ComponentName> deviceOwner 9207 = mOwners.getDeviceOwnerUserIdAndComponent(); 9208 if (deviceOwner != null) { 9209 return DevicePolicyManagerService.this 9210 .createShowAdminSupportIntent(deviceOwner.second, deviceOwner.first); 9211 } 9212 // This could happen if another thread has changed the device owner since we called 9213 // getUserRestrictionSource 9214 return null; 9215 } 9216 return null; 9217 } 9218 } 9219 9220 private Intent createShowAdminSupportIntent(ComponentName admin, int userId) { 9221 // This method is called with AMS lock held, so don't take DPMS lock 9222 final Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS); 9223 intent.putExtra(Intent.EXTRA_USER_ID, userId); 9224 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, admin); 9225 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 9226 return intent; 9227 } 9228 9229 @Override 9230 public Intent createAdminSupportIntent(String restriction) { 9231 Preconditions.checkNotNull(restriction); 9232 final int uid = mInjector.binderGetCallingUid(); 9233 final int userId = UserHandle.getUserId(uid); 9234 Intent intent = null; 9235 if (DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction) || 9236 DevicePolicyManager.POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction)) { 9237 synchronized(this) { 9238 final DevicePolicyData policy = getUserData(userId); 9239 final int N = policy.mAdminList.size(); 9240 for (int i = 0; i < N; i++) { 9241 final ActiveAdmin admin = policy.mAdminList.get(i); 9242 if ((admin.disableCamera && 9243 DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) || 9244 (admin.disableScreenCapture && DevicePolicyManager 9245 .POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction))) { 9246 intent = createShowAdminSupportIntent(admin.info.getComponent(), userId); 9247 break; 9248 } 9249 } 9250 // For the camera, a device owner on a different user can disable it globally, 9251 // so we need an additional check. 9252 if (intent == null 9253 && DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) { 9254 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 9255 if (admin != null && admin.disableCamera) { 9256 intent = createShowAdminSupportIntent(admin.info.getComponent(), 9257 mOwners.getDeviceOwnerUserId()); 9258 } 9259 } 9260 } 9261 } else { 9262 // if valid, |restriction| can only be a user restriction 9263 intent = mLocalService.createUserRestrictionSupportIntent(userId, restriction); 9264 } 9265 if (intent != null) { 9266 intent.putExtra(DevicePolicyManager.EXTRA_RESTRICTION, restriction); 9267 } 9268 return intent; 9269 } 9270 9271 /** 9272 * Returns true if specified admin is allowed to limit passwords and has a 9273 * {@code minimumPasswordMetrics.quality} of at least {@code minPasswordQuality} 9274 */ 9275 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 9276 if (admin.minimumPasswordMetrics.quality < minPasswordQuality) { 9277 return false; 9278 } 9279 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 9280 } 9281 9282 @Override 9283 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 9284 if (policy != null && !policy.isValid()) { 9285 throw new IllegalArgumentException("Invalid system update policy."); 9286 } 9287 synchronized (this) { 9288 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9289 if (policy == null) { 9290 mOwners.clearSystemUpdatePolicy(); 9291 } else { 9292 mOwners.setSystemUpdatePolicy(policy); 9293 } 9294 mOwners.writeDeviceOwner(); 9295 } 9296 mContext.sendBroadcastAsUser( 9297 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 9298 UserHandle.SYSTEM); 9299 } 9300 9301 @Override 9302 public SystemUpdatePolicy getSystemUpdatePolicy() { 9303 if (UserManager.isDeviceInDemoMode(mContext)) { 9304 // Pretending to have an automatic update policy when the device is in retail demo 9305 // mode. This will allow the device to download and install an ota without 9306 // any user interaction. 9307 return SystemUpdatePolicy.createAutomaticInstallPolicy(); 9308 } 9309 synchronized (this) { 9310 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 9311 if (policy != null && !policy.isValid()) { 9312 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 9313 return null; 9314 } 9315 return policy; 9316 } 9317 } 9318 9319 /** 9320 * Checks if the caller of the method is the device owner app. 9321 * 9322 * @param callerUid UID of the caller. 9323 * @return true if the caller is the device owner app 9324 */ 9325 @VisibleForTesting 9326 boolean isCallerDeviceOwner(int callerUid) { 9327 synchronized (this) { 9328 if (!mOwners.hasDeviceOwner()) { 9329 return false; 9330 } 9331 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 9332 return false; 9333 } 9334 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 9335 .getPackageName(); 9336 try { 9337 String[] pkgs = mInjector.getIPackageManager().getPackagesForUid(callerUid); 9338 for (String pkg : pkgs) { 9339 if (deviceOwnerPackageName.equals(pkg)) { 9340 return true; 9341 } 9342 } 9343 } catch (RemoteException e) { 9344 return false; 9345 } 9346 } 9347 9348 return false; 9349 } 9350 9351 @Override 9352 public void notifyPendingSystemUpdate(@Nullable SystemUpdateInfo info) { 9353 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 9354 "Only the system update service can broadcast update information"); 9355 9356 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 9357 Slog.w(LOG_TAG, "Only the system update service in the system user " + 9358 "can broadcast update information."); 9359 return; 9360 } 9361 9362 if (!mOwners.saveSystemUpdateInfo(info)) { 9363 // Pending system update hasn't changed, don't send duplicate notification. 9364 return; 9365 } 9366 9367 final Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE) 9368 .putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 9369 info == null ? -1 : info.getReceivedTime()); 9370 9371 final long ident = mInjector.binderClearCallingIdentity(); 9372 try { 9373 synchronized (this) { 9374 // Broadcast to device owner first if there is one. 9375 if (mOwners.hasDeviceOwner()) { 9376 final UserHandle deviceOwnerUser = 9377 UserHandle.of(mOwners.getDeviceOwnerUserId()); 9378 intent.setComponent(mOwners.getDeviceOwnerComponent()); 9379 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 9380 } 9381 } 9382 // Get running users. 9383 final int runningUserIds[]; 9384 try { 9385 runningUserIds = mInjector.getIActivityManager().getRunningUserIds(); 9386 } catch (RemoteException e) { 9387 // Shouldn't happen. 9388 Log.e(LOG_TAG, "Could not retrieve the list of running users", e); 9389 return; 9390 } 9391 // Send broadcasts to corresponding profile owners if any. 9392 for (final int userId : runningUserIds) { 9393 synchronized (this) { 9394 final ComponentName profileOwnerPackage = 9395 mOwners.getProfileOwnerComponent(userId); 9396 if (profileOwnerPackage != null) { 9397 intent.setComponent(profileOwnerPackage); 9398 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 9399 } 9400 } 9401 } 9402 } finally { 9403 mInjector.binderRestoreCallingIdentity(ident); 9404 } 9405 } 9406 9407 @Override 9408 public SystemUpdateInfo getPendingSystemUpdate(ComponentName admin) { 9409 Preconditions.checkNotNull(admin, "ComponentName is null"); 9410 enforceProfileOrDeviceOwner(admin); 9411 9412 return mOwners.getSystemUpdateInfo(); 9413 } 9414 9415 @Override 9416 public void setPermissionPolicy(ComponentName admin, String callerPackage, int policy) 9417 throws RemoteException { 9418 int userId = UserHandle.getCallingUserId(); 9419 synchronized (this) { 9420 // Ensure the caller is a DO/PO or a permission grant state delegate. 9421 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9422 DELEGATION_PERMISSION_GRANT); 9423 DevicePolicyData userPolicy = getUserData(userId); 9424 if (userPolicy.mPermissionPolicy != policy) { 9425 userPolicy.mPermissionPolicy = policy; 9426 saveSettingsLocked(userId); 9427 } 9428 } 9429 } 9430 9431 @Override 9432 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 9433 int userId = UserHandle.getCallingUserId(); 9434 synchronized (this) { 9435 DevicePolicyData userPolicy = getUserData(userId); 9436 return userPolicy.mPermissionPolicy; 9437 } 9438 } 9439 9440 @Override 9441 public boolean setPermissionGrantState(ComponentName admin, String callerPackage, 9442 String packageName, String permission, int grantState) throws RemoteException { 9443 UserHandle user = mInjector.binderGetCallingUserHandle(); 9444 synchronized (this) { 9445 // Ensure the caller is a DO/PO or a permission grant state delegate. 9446 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9447 DELEGATION_PERMISSION_GRANT); 9448 long ident = mInjector.binderClearCallingIdentity(); 9449 try { 9450 if (getTargetSdk(packageName, user.getIdentifier()) 9451 < android.os.Build.VERSION_CODES.M) { 9452 return false; 9453 } 9454 final PackageManager packageManager = mInjector.getPackageManager(); 9455 switch (grantState) { 9456 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 9457 mInjector.getPackageManagerInternal().grantRuntimePermission(packageName, 9458 permission, user.getIdentifier(), true /* override policy */); 9459 packageManager.updatePermissionFlags(permission, packageName, 9460 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 9461 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 9462 } break; 9463 9464 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 9465 mInjector.getPackageManagerInternal().revokeRuntimePermission(packageName, 9466 permission, user.getIdentifier(), true /* override policy */); 9467 packageManager.updatePermissionFlags(permission, packageName, 9468 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 9469 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 9470 } break; 9471 9472 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 9473 packageManager.updatePermissionFlags(permission, packageName, 9474 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 9475 } break; 9476 } 9477 return true; 9478 } catch (SecurityException se) { 9479 return false; 9480 } finally { 9481 mInjector.binderRestoreCallingIdentity(ident); 9482 } 9483 } 9484 } 9485 9486 @Override 9487 public int getPermissionGrantState(ComponentName admin, String callerPackage, 9488 String packageName, String permission) throws RemoteException { 9489 PackageManager packageManager = mInjector.getPackageManager(); 9490 9491 UserHandle user = mInjector.binderGetCallingUserHandle(); 9492 if (!isCallerWithSystemUid()) { 9493 // Ensure the caller is a DO/PO or a permission grant state delegate. 9494 enforceCanManageScope(admin, callerPackage, 9495 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, DELEGATION_PERMISSION_GRANT); 9496 } 9497 synchronized (this) { 9498 long ident = mInjector.binderClearCallingIdentity(); 9499 try { 9500 int granted = mIPackageManager.checkPermission(permission, 9501 packageName, user.getIdentifier()); 9502 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 9503 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 9504 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 9505 // Not controlled by policy 9506 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 9507 } else { 9508 // Policy controlled so return result based on permission grant state 9509 return granted == PackageManager.PERMISSION_GRANTED 9510 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 9511 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 9512 } 9513 } finally { 9514 mInjector.binderRestoreCallingIdentity(ident); 9515 } 9516 } 9517 } 9518 9519 boolean isPackageInstalledForUser(String packageName, int userHandle) { 9520 try { 9521 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 9522 userHandle); 9523 return (pi != null) && (pi.applicationInfo.flags != 0); 9524 } catch (RemoteException re) { 9525 throw new RuntimeException("Package manager has died", re); 9526 } 9527 } 9528 9529 @Override 9530 public boolean isProvisioningAllowed(String action, String packageName) { 9531 Preconditions.checkNotNull(packageName); 9532 9533 final int callingUid = mInjector.binderGetCallingUid(); 9534 final long ident = mInjector.binderClearCallingIdentity(); 9535 try { 9536 final int uidForPackage = mInjector.getPackageManager().getPackageUidAsUser( 9537 packageName, UserHandle.getUserId(callingUid)); 9538 Preconditions.checkArgument(callingUid == uidForPackage, 9539 "Caller uid doesn't match the one for the provided package."); 9540 } catch (NameNotFoundException e) { 9541 throw new IllegalArgumentException("Invalid package provided " + packageName, e); 9542 } finally { 9543 mInjector.binderRestoreCallingIdentity(ident); 9544 } 9545 9546 return checkProvisioningPreConditionSkipPermission(action, packageName) == CODE_OK; 9547 } 9548 9549 @Override 9550 public int checkProvisioningPreCondition(String action, String packageName) { 9551 Preconditions.checkNotNull(packageName); 9552 enforceCanManageProfileAndDeviceOwners(); 9553 return checkProvisioningPreConditionSkipPermission(action, packageName); 9554 } 9555 9556 private int checkProvisioningPreConditionSkipPermission(String action, String packageName) { 9557 if (!mHasFeature) { 9558 return CODE_DEVICE_ADMIN_NOT_SUPPORTED; 9559 } 9560 9561 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9562 if (action != null) { 9563 switch (action) { 9564 case DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE: 9565 return checkManagedProfileProvisioningPreCondition(packageName, callingUserId); 9566 case DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE: 9567 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 9568 case DevicePolicyManager.ACTION_PROVISION_MANAGED_USER: 9569 return checkManagedUserProvisioningPreCondition(callingUserId); 9570 case DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE: 9571 return checkManagedShareableDeviceProvisioningPreCondition(callingUserId); 9572 } 9573 } 9574 throw new IllegalArgumentException("Unknown provisioning action " + action); 9575 } 9576 9577 /** 9578 * The device owner can only be set before the setup phase of the primary user has completed, 9579 * except for adb command if no accounts or additional users are present on the device. 9580 */ 9581 private int checkDeviceOwnerProvisioningPreConditionLocked(@Nullable ComponentName owner, 9582 int deviceOwnerUserId, boolean isAdb, boolean hasIncompatibleAccountsOrNonAdb) { 9583 if (mOwners.hasDeviceOwner()) { 9584 return CODE_HAS_DEVICE_OWNER; 9585 } 9586 if (mOwners.hasProfileOwner(deviceOwnerUserId)) { 9587 return CODE_USER_HAS_PROFILE_OWNER; 9588 } 9589 if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) { 9590 return CODE_USER_NOT_RUNNING; 9591 } 9592 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 9593 return CODE_HAS_PAIRED; 9594 } 9595 if (isAdb) { 9596 // if shell command runs after user setup completed check device status. Otherwise, OK. 9597 if (mIsWatch || hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 9598 if (!mInjector.userManagerIsSplitSystemUser()) { 9599 if (mUserManager.getUserCount() > 1) { 9600 return CODE_NONSYSTEM_USER_EXISTS; 9601 } 9602 if (hasIncompatibleAccountsOrNonAdb) { 9603 return CODE_ACCOUNTS_NOT_EMPTY; 9604 } 9605 } else { 9606 // STOPSHIP Do proper check in split user mode 9607 } 9608 } 9609 return CODE_OK; 9610 } else { 9611 if (!mInjector.userManagerIsSplitSystemUser()) { 9612 // In non-split user mode, DO has to be user 0 9613 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) { 9614 return CODE_NOT_SYSTEM_USER; 9615 } 9616 // In non-split user mode, only provision DO before setup wizard completes 9617 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 9618 return CODE_USER_SETUP_COMPLETED; 9619 } 9620 } else { 9621 // STOPSHIP Do proper check in split user mode 9622 } 9623 return CODE_OK; 9624 } 9625 } 9626 9627 private int checkDeviceOwnerProvisioningPreCondition(int deviceOwnerUserId) { 9628 synchronized (this) { 9629 // hasIncompatibleAccountsOrNonAdb doesn't matter since the caller is not adb. 9630 return checkDeviceOwnerProvisioningPreConditionLocked(/* owner unknown */ null, 9631 deviceOwnerUserId, /* isAdb= */ false, 9632 /* hasIncompatibleAccountsOrNonAdb=*/ true); 9633 } 9634 } 9635 9636 private int checkManagedProfileProvisioningPreCondition(String packageName, int callingUserId) { 9637 if (!hasFeatureManagedUsers()) { 9638 return CODE_MANAGED_USERS_NOT_SUPPORTED; 9639 } 9640 if (callingUserId == UserHandle.USER_SYSTEM 9641 && mInjector.userManagerIsSplitSystemUser()) { 9642 // Managed-profiles cannot be setup on the system user. 9643 return CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 9644 } 9645 if (getProfileOwner(callingUserId) != null) { 9646 // Managed user cannot have a managed profile. 9647 return CODE_USER_HAS_PROFILE_OWNER; 9648 } 9649 9650 final long ident = mInjector.binderClearCallingIdentity(); 9651 try { 9652 final UserHandle callingUserHandle = UserHandle.of(callingUserId); 9653 final ComponentName ownerAdmin = getOwnerComponent(packageName, callingUserId); 9654 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_MANAGED_PROFILE, 9655 callingUserHandle)) { 9656 // An admin can initiate provisioning if it has set the restriction. 9657 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 9658 UserManager.DISALLOW_ADD_MANAGED_PROFILE, callingUserId)) { 9659 return CODE_ADD_MANAGED_PROFILE_DISALLOWED; 9660 } 9661 } 9662 boolean canRemoveProfile = true; 9663 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 9664 callingUserHandle)) { 9665 // We can remove a profile if the admin itself has set the restriction. 9666 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 9667 UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 9668 callingUserId)) { 9669 canRemoveProfile = false; 9670 } 9671 } 9672 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, canRemoveProfile)) { 9673 return CODE_CANNOT_ADD_MANAGED_PROFILE; 9674 } 9675 } finally { 9676 mInjector.binderRestoreCallingIdentity(ident); 9677 } 9678 return CODE_OK; 9679 } 9680 9681 private ComponentName getOwnerComponent(String packageName, int userId) { 9682 if (isDeviceOwnerPackage(packageName, userId)) { 9683 return mOwners.getDeviceOwnerComponent(); 9684 } 9685 if (isProfileOwnerPackage(packageName, userId)) { 9686 return mOwners.getProfileOwnerComponent(userId); 9687 } 9688 return null; 9689 } 9690 9691 private int checkManagedUserProvisioningPreCondition(int callingUserId) { 9692 if (!hasFeatureManagedUsers()) { 9693 return CODE_MANAGED_USERS_NOT_SUPPORTED; 9694 } 9695 if (!mInjector.userManagerIsSplitSystemUser()) { 9696 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 9697 return CODE_NOT_SYSTEM_USER_SPLIT; 9698 } 9699 if (callingUserId == UserHandle.USER_SYSTEM) { 9700 // System user cannot be a managed user. 9701 return CODE_SYSTEM_USER; 9702 } 9703 if (hasUserSetupCompleted(callingUserId)) { 9704 return CODE_USER_SETUP_COMPLETED; 9705 } 9706 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 9707 return CODE_HAS_PAIRED; 9708 } 9709 return CODE_OK; 9710 } 9711 9712 private int checkManagedShareableDeviceProvisioningPreCondition(int callingUserId) { 9713 if (!mInjector.userManagerIsSplitSystemUser()) { 9714 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 9715 return CODE_NOT_SYSTEM_USER_SPLIT; 9716 } 9717 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 9718 } 9719 9720 private boolean hasFeatureManagedUsers() { 9721 try { 9722 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 9723 } catch (RemoteException e) { 9724 return false; 9725 } 9726 } 9727 9728 @Override 9729 public String getWifiMacAddress(ComponentName admin) { 9730 // Make sure caller has DO. 9731 synchronized (this) { 9732 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9733 } 9734 9735 final long ident = mInjector.binderClearCallingIdentity(); 9736 try { 9737 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 9738 if (wifiInfo == null) { 9739 return null; 9740 } 9741 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 9742 } finally { 9743 mInjector.binderRestoreCallingIdentity(ident); 9744 } 9745 } 9746 9747 /** 9748 * Returns the target sdk version number that the given packageName was built for 9749 * in the given user. 9750 */ 9751 private int getTargetSdk(String packageName, int userId) { 9752 final ApplicationInfo ai; 9753 try { 9754 ai = mIPackageManager.getApplicationInfo(packageName, 0, userId); 9755 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 9756 return targetSdkVersion; 9757 } catch (RemoteException e) { 9758 // Shouldn't happen 9759 return 0; 9760 } 9761 } 9762 9763 @Override 9764 public boolean isManagedProfile(ComponentName admin) { 9765 enforceProfileOrDeviceOwner(admin); 9766 return isManagedProfile(mInjector.userHandleGetCallingUserId()); 9767 } 9768 9769 @Override 9770 public boolean isSystemOnlyUser(ComponentName admin) { 9771 synchronized (this) { 9772 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9773 } 9774 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9775 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 9776 } 9777 9778 @Override 9779 public void reboot(ComponentName admin) { 9780 Preconditions.checkNotNull(admin); 9781 // Make sure caller has DO. 9782 synchronized (this) { 9783 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9784 } 9785 long ident = mInjector.binderClearCallingIdentity(); 9786 try { 9787 // Make sure there are no ongoing calls on the device. 9788 if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { 9789 throw new IllegalStateException("Cannot be called with ongoing call on the device"); 9790 } 9791 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 9792 } finally { 9793 mInjector.binderRestoreCallingIdentity(ident); 9794 } 9795 } 9796 9797 @Override 9798 public void setShortSupportMessage(@NonNull ComponentName who, CharSequence message) { 9799 if (!mHasFeature) { 9800 return; 9801 } 9802 Preconditions.checkNotNull(who, "ComponentName is null"); 9803 final int userHandle = mInjector.userHandleGetCallingUserId(); 9804 synchronized (this) { 9805 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9806 mInjector.binderGetCallingUid()); 9807 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 9808 admin.shortSupportMessage = message; 9809 saveSettingsLocked(userHandle); 9810 } 9811 } 9812 } 9813 9814 @Override 9815 public CharSequence getShortSupportMessage(@NonNull ComponentName who) { 9816 if (!mHasFeature) { 9817 return null; 9818 } 9819 Preconditions.checkNotNull(who, "ComponentName is null"); 9820 synchronized (this) { 9821 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9822 mInjector.binderGetCallingUid()); 9823 return admin.shortSupportMessage; 9824 } 9825 } 9826 9827 @Override 9828 public void setLongSupportMessage(@NonNull ComponentName who, CharSequence message) { 9829 if (!mHasFeature) { 9830 return; 9831 } 9832 Preconditions.checkNotNull(who, "ComponentName is null"); 9833 final int userHandle = mInjector.userHandleGetCallingUserId(); 9834 synchronized (this) { 9835 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9836 mInjector.binderGetCallingUid()); 9837 if (!TextUtils.equals(admin.longSupportMessage, message)) { 9838 admin.longSupportMessage = message; 9839 saveSettingsLocked(userHandle); 9840 } 9841 } 9842 } 9843 9844 @Override 9845 public CharSequence getLongSupportMessage(@NonNull ComponentName who) { 9846 if (!mHasFeature) { 9847 return null; 9848 } 9849 Preconditions.checkNotNull(who, "ComponentName is null"); 9850 synchronized (this) { 9851 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9852 mInjector.binderGetCallingUid()); 9853 return admin.longSupportMessage; 9854 } 9855 } 9856 9857 @Override 9858 public CharSequence getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 9859 if (!mHasFeature) { 9860 return null; 9861 } 9862 Preconditions.checkNotNull(who, "ComponentName is null"); 9863 if (!isCallerWithSystemUid()) { 9864 throw new SecurityException("Only the system can query support message for user"); 9865 } 9866 synchronized (this) { 9867 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 9868 if (admin != null) { 9869 return admin.shortSupportMessage; 9870 } 9871 } 9872 return null; 9873 } 9874 9875 @Override 9876 public CharSequence getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 9877 if (!mHasFeature) { 9878 return null; 9879 } 9880 Preconditions.checkNotNull(who, "ComponentName is null"); 9881 if (!isCallerWithSystemUid()) { 9882 throw new SecurityException("Only the system can query support message for user"); 9883 } 9884 synchronized (this) { 9885 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 9886 if (admin != null) { 9887 return admin.longSupportMessage; 9888 } 9889 } 9890 return null; 9891 } 9892 9893 @Override 9894 public void setOrganizationColor(@NonNull ComponentName who, int color) { 9895 if (!mHasFeature) { 9896 return; 9897 } 9898 Preconditions.checkNotNull(who, "ComponentName is null"); 9899 final int userHandle = mInjector.userHandleGetCallingUserId(); 9900 enforceManagedProfile(userHandle, "set organization color"); 9901 synchronized (this) { 9902 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9903 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9904 admin.organizationColor = color; 9905 saveSettingsLocked(userHandle); 9906 } 9907 } 9908 9909 @Override 9910 public void setOrganizationColorForUser(int color, int userId) { 9911 if (!mHasFeature) { 9912 return; 9913 } 9914 enforceFullCrossUsersPermission(userId); 9915 enforceManageUsers(); 9916 enforceManagedProfile(userId, "set organization color"); 9917 synchronized (this) { 9918 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9919 admin.organizationColor = color; 9920 saveSettingsLocked(userId); 9921 } 9922 } 9923 9924 @Override 9925 public int getOrganizationColor(@NonNull ComponentName who) { 9926 if (!mHasFeature) { 9927 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 9928 } 9929 Preconditions.checkNotNull(who, "ComponentName is null"); 9930 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 9931 synchronized (this) { 9932 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9933 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9934 return admin.organizationColor; 9935 } 9936 } 9937 9938 @Override 9939 public int getOrganizationColorForUser(int userHandle) { 9940 if (!mHasFeature) { 9941 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 9942 } 9943 enforceFullCrossUsersPermission(userHandle); 9944 enforceManagedProfile(userHandle, "get organization color"); 9945 synchronized (this) { 9946 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 9947 return (profileOwner != null) 9948 ? profileOwner.organizationColor 9949 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 9950 } 9951 } 9952 9953 @Override 9954 public void setOrganizationName(@NonNull ComponentName who, CharSequence text) { 9955 if (!mHasFeature) { 9956 return; 9957 } 9958 Preconditions.checkNotNull(who, "ComponentName is null"); 9959 final int userHandle = mInjector.userHandleGetCallingUserId(); 9960 9961 synchronized (this) { 9962 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9963 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9964 if (!TextUtils.equals(admin.organizationName, text)) { 9965 admin.organizationName = (text == null || text.length() == 0) 9966 ? null : text.toString(); 9967 saveSettingsLocked(userHandle); 9968 } 9969 } 9970 } 9971 9972 @Override 9973 public CharSequence getOrganizationName(@NonNull ComponentName who) { 9974 if (!mHasFeature) { 9975 return null; 9976 } 9977 Preconditions.checkNotNull(who, "ComponentName is null"); 9978 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 9979 synchronized(this) { 9980 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9981 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9982 return admin.organizationName; 9983 } 9984 } 9985 9986 @Override 9987 public CharSequence getDeviceOwnerOrganizationName() { 9988 if (!mHasFeature) { 9989 return null; 9990 } 9991 enforceDeviceOwnerOrManageUsers(); 9992 synchronized(this) { 9993 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 9994 return deviceOwnerAdmin == null ? null : deviceOwnerAdmin.organizationName; 9995 } 9996 } 9997 9998 @Override 9999 public CharSequence getOrganizationNameForUser(int userHandle) { 10000 if (!mHasFeature) { 10001 return null; 10002 } 10003 enforceFullCrossUsersPermission(userHandle); 10004 enforceManagedProfile(userHandle, "get organization name"); 10005 synchronized (this) { 10006 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 10007 return (profileOwner != null) 10008 ? profileOwner.organizationName 10009 : null; 10010 } 10011 } 10012 10013 @Override 10014 public void setAffiliationIds(ComponentName admin, List<String> ids) { 10015 if (!mHasFeature) { 10016 return; 10017 } 10018 10019 Preconditions.checkNotNull(admin); 10020 Preconditions.checkCollectionElementsNotNull(ids, "ids"); 10021 10022 final Set<String> affiliationIds = new ArraySet<String>(ids); 10023 Preconditions.checkArgument( 10024 !affiliationIds.contains(""), "ids must not contain empty strings"); 10025 10026 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10027 synchronized (this) { 10028 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10029 getUserData(callingUserId).mAffiliationIds = affiliationIds; 10030 saveSettingsLocked(callingUserId); 10031 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 10032 // Affiliation ids specified by the device owner are additionally stored in 10033 // UserHandle.USER_SYSTEM's DevicePolicyData. 10034 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 10035 saveSettingsLocked(UserHandle.USER_SYSTEM); 10036 } 10037 10038 // Affiliation status for any user, not just the calling user, might have changed. 10039 // The device owner user will still be affiliated after changing its affiliation ids, 10040 // but as a result of that other users might become affiliated or un-affiliated. 10041 maybePauseDeviceWideLoggingLocked(); 10042 maybeResumeDeviceWideLoggingLocked(); 10043 maybeClearLockTaskPackagesLocked(); 10044 } 10045 } 10046 10047 @Override 10048 public List<String> getAffiliationIds(ComponentName admin) { 10049 if (!mHasFeature) { 10050 return Collections.emptyList(); 10051 } 10052 10053 Preconditions.checkNotNull(admin); 10054 synchronized (this) { 10055 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10056 return new ArrayList<String>( 10057 getUserData(mInjector.userHandleGetCallingUserId()).mAffiliationIds); 10058 } 10059 } 10060 10061 @Override 10062 public boolean isAffiliatedUser() { 10063 if (!mHasFeature) { 10064 return false; 10065 } 10066 10067 synchronized (this) { 10068 return isUserAffiliatedWithDeviceLocked(mInjector.userHandleGetCallingUserId()); 10069 } 10070 } 10071 10072 private boolean isUserAffiliatedWithDeviceLocked(int userId) { 10073 if (!mOwners.hasDeviceOwner()) { 10074 return false; 10075 } 10076 if (userId == mOwners.getDeviceOwnerUserId()) { 10077 // The user that the DO is installed on is always affiliated with the device. 10078 return true; 10079 } 10080 if (userId == UserHandle.USER_SYSTEM) { 10081 // The system user is always affiliated in a DO device, even if the DO is set on a 10082 // different user. This could be the case if the DO is set in the primary user 10083 // of a split user device. 10084 return true; 10085 } 10086 final ComponentName profileOwner = getProfileOwner(userId); 10087 if (profileOwner == null) { 10088 return false; 10089 } 10090 final Set<String> userAffiliationIds = getUserData(userId).mAffiliationIds; 10091 final Set<String> deviceAffiliationIds = 10092 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 10093 for (String id : userAffiliationIds) { 10094 if (deviceAffiliationIds.contains(id)) { 10095 return true; 10096 } 10097 } 10098 return false; 10099 } 10100 10101 private boolean areAllUsersAffiliatedWithDeviceLocked() { 10102 final long ident = mInjector.binderClearCallingIdentity(); 10103 try { 10104 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 10105 for (int i = 0; i < userInfos.size(); i++) { 10106 int userId = userInfos.get(i).id; 10107 if (!isUserAffiliatedWithDeviceLocked(userId)) { 10108 Slog.d(LOG_TAG, "User id " + userId + " not affiliated."); 10109 return false; 10110 } 10111 } 10112 } finally { 10113 mInjector.binderRestoreCallingIdentity(ident); 10114 } 10115 10116 return true; 10117 } 10118 10119 @Override 10120 public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) { 10121 if (!mHasFeature) { 10122 return; 10123 } 10124 Preconditions.checkNotNull(admin); 10125 10126 synchronized (this) { 10127 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10128 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 10129 return; 10130 } 10131 mInjector.securityLogSetLoggingEnabledProperty(enabled); 10132 if (enabled) { 10133 mSecurityLogMonitor.start(); 10134 maybePauseDeviceWideLoggingLocked(); 10135 } else { 10136 mSecurityLogMonitor.stop(); 10137 } 10138 } 10139 } 10140 10141 @Override 10142 public boolean isSecurityLoggingEnabled(ComponentName admin) { 10143 if (!mHasFeature) { 10144 return false; 10145 } 10146 10147 Preconditions.checkNotNull(admin); 10148 synchronized (this) { 10149 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10150 return mInjector.securityLogGetLoggingEnabledProperty(); 10151 } 10152 } 10153 10154 private synchronized void recordSecurityLogRetrievalTime() { 10155 final long currentTime = System.currentTimeMillis(); 10156 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 10157 if (currentTime > policyData.mLastSecurityLogRetrievalTime) { 10158 policyData.mLastSecurityLogRetrievalTime = currentTime; 10159 saveSettingsLocked(UserHandle.USER_SYSTEM); 10160 } 10161 } 10162 10163 @Override 10164 public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) { 10165 if (!mHasFeature) { 10166 return null; 10167 } 10168 10169 Preconditions.checkNotNull(admin); 10170 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10171 10172 if (!mContext.getResources().getBoolean(R.bool.config_supportPreRebootSecurityLogs) 10173 || !mInjector.securityLogGetLoggingEnabledProperty()) { 10174 return null; 10175 } 10176 10177 recordSecurityLogRetrievalTime(); 10178 10179 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 10180 try { 10181 SecurityLog.readPreviousEvents(output); 10182 return new ParceledListSlice<SecurityEvent>(output); 10183 } catch (IOException e) { 10184 Slog.w(LOG_TAG, "Fail to read previous events" , e); 10185 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 10186 } 10187 } 10188 10189 @Override 10190 public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) { 10191 if (!mHasFeature) { 10192 return null; 10193 } 10194 10195 Preconditions.checkNotNull(admin); 10196 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10197 10198 if (!mInjector.securityLogGetLoggingEnabledProperty()) { 10199 return null; 10200 } 10201 10202 recordSecurityLogRetrievalTime(); 10203 10204 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 10205 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 10206 } 10207 10208 private void enforceCanManageDeviceAdmin() { 10209 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 10210 null); 10211 } 10212 10213 private void enforceCanManageProfileAndDeviceOwners() { 10214 mContext.enforceCallingOrSelfPermission( 10215 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 10216 } 10217 10218 private void enforceCallerSystemUserHandle() { 10219 final int callingUid = mInjector.binderGetCallingUid(); 10220 final int userId = UserHandle.getUserId(callingUid); 10221 if (userId != UserHandle.USER_SYSTEM) { 10222 throw new SecurityException("Caller has to be in user 0"); 10223 } 10224 } 10225 10226 @Override 10227 public boolean isUninstallInQueue(final String packageName) { 10228 enforceCanManageDeviceAdmin(); 10229 final int userId = mInjector.userHandleGetCallingUserId(); 10230 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10231 synchronized (this) { 10232 return mPackagesToRemove.contains(packageUserPair); 10233 } 10234 } 10235 10236 @Override 10237 public void uninstallPackageWithActiveAdmins(final String packageName) { 10238 enforceCanManageDeviceAdmin(); 10239 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 10240 10241 final int userId = mInjector.userHandleGetCallingUserId(); 10242 10243 enforceUserUnlocked(userId); 10244 10245 final ComponentName profileOwner = getProfileOwner(userId); 10246 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 10247 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 10248 } 10249 10250 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 10251 if (getDeviceOwnerUserId() == userId && deviceOwner != null 10252 && packageName.equals(deviceOwner.getPackageName())) { 10253 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 10254 } 10255 10256 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10257 synchronized (this) { 10258 mPackagesToRemove.add(packageUserPair); 10259 } 10260 10261 // All active admins on the user. 10262 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 10263 10264 // Active admins in the target package. 10265 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 10266 if (allActiveAdmins != null) { 10267 for (ComponentName activeAdmin : allActiveAdmins) { 10268 if (packageName.equals(activeAdmin.getPackageName())) { 10269 packageActiveAdmins.add(activeAdmin); 10270 removeActiveAdmin(activeAdmin, userId); 10271 } 10272 } 10273 } 10274 if (packageActiveAdmins.size() == 0) { 10275 startUninstallIntent(packageName, userId); 10276 } else { 10277 mHandler.postDelayed(new Runnable() { 10278 @Override 10279 public void run() { 10280 for (ComponentName activeAdmin : packageActiveAdmins) { 10281 removeAdminArtifacts(activeAdmin, userId); 10282 } 10283 startUninstallIntent(packageName, userId); 10284 } 10285 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 10286 } 10287 } 10288 10289 @Override 10290 public boolean isDeviceProvisioned() { 10291 synchronized (this) { 10292 return getUserDataUnchecked(UserHandle.USER_SYSTEM).mUserSetupComplete; 10293 } 10294 } 10295 10296 private void removePackageIfRequired(final String packageName, final int userId) { 10297 if (!packageHasActiveAdmins(packageName, userId)) { 10298 // Will not do anything if uninstall was not requested or was already started. 10299 startUninstallIntent(packageName, userId); 10300 } 10301 } 10302 10303 private void startUninstallIntent(final String packageName, final int userId) { 10304 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10305 synchronized (this) { 10306 if (!mPackagesToRemove.contains(packageUserPair)) { 10307 // Do nothing if uninstall was not requested or was already started. 10308 return; 10309 } 10310 mPackagesToRemove.remove(packageUserPair); 10311 } 10312 try { 10313 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 10314 // Package does not exist. Nothing to do. 10315 return; 10316 } 10317 } catch (RemoteException re) { 10318 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 10319 } 10320 10321 try { // force stop the package before uninstalling 10322 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 10323 } catch (RemoteException re) { 10324 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 10325 } 10326 final Uri packageURI = Uri.parse("package:" + packageName); 10327 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 10328 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 10329 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 10330 } 10331 10332 /** 10333 * Removes the admin from the policy. Ideally called after the admin's 10334 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 10335 * 10336 * @param adminReceiver The admin to remove 10337 * @param userHandle The user for which this admin has to be removed. 10338 */ 10339 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 10340 synchronized (this) { 10341 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 10342 if (admin == null) { 10343 return; 10344 } 10345 final DevicePolicyData policy = getUserData(userHandle); 10346 final boolean doProxyCleanup = admin.info.usesPolicy( 10347 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 10348 policy.mAdminList.remove(admin); 10349 policy.mAdminMap.remove(adminReceiver); 10350 validatePasswordOwnerLocked(policy); 10351 if (doProxyCleanup) { 10352 resetGlobalProxyLocked(policy); 10353 } 10354 saveSettingsLocked(userHandle); 10355 updateMaximumTimeToLockLocked(userHandle); 10356 policy.mRemovingAdmins.remove(adminReceiver); 10357 10358 Slog.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle); 10359 } 10360 // The removed admin might have disabled camera, so update user 10361 // restrictions. 10362 pushUserRestrictions(userHandle); 10363 } 10364 10365 @Override 10366 public void setDeviceProvisioningConfigApplied() { 10367 enforceManageUsers(); 10368 synchronized (this) { 10369 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 10370 policy.mDeviceProvisioningConfigApplied = true; 10371 saveSettingsLocked(UserHandle.USER_SYSTEM); 10372 } 10373 } 10374 10375 @Override 10376 public boolean isDeviceProvisioningConfigApplied() { 10377 enforceManageUsers(); 10378 synchronized (this) { 10379 final DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 10380 return policy.mDeviceProvisioningConfigApplied; 10381 } 10382 } 10383 10384 /** 10385 * Force update internal persistent state from Settings.Secure.USER_SETUP_COMPLETE. 10386 * 10387 * It's added for testing only. Please use this API carefully if it's used by other system app 10388 * and bare in mind Settings.Secure.USER_SETUP_COMPLETE can be modified by user and other system 10389 * apps. 10390 */ 10391 @Override 10392 public void forceUpdateUserSetupComplete() { 10393 enforceCanManageProfileAndDeviceOwners(); 10394 enforceCallerSystemUserHandle(); 10395 // no effect if it's called from user build 10396 if (!mInjector.isBuildDebuggable()) { 10397 return; 10398 } 10399 final int userId = UserHandle.USER_SYSTEM; 10400 boolean isUserCompleted = mInjector.settingsSecureGetIntForUser( 10401 Settings.Secure.USER_SETUP_COMPLETE, 0, userId) != 0; 10402 DevicePolicyData policy = getUserData(userId); 10403 policy.mUserSetupComplete = isUserCompleted; 10404 synchronized (this) { 10405 saveSettingsLocked(userId); 10406 } 10407 } 10408 10409 // TODO(b/22388012): When backup is available for secondary users and profiles, consider 10410 // whether there are any privacy/security implications of enabling the backup service here 10411 // if there are other users or profiles unmanaged or managed by a different entity (i.e. not 10412 // affiliated). 10413 @Override 10414 public void setBackupServiceEnabled(ComponentName admin, boolean enabled) { 10415 if (!mHasFeature) { 10416 return; 10417 } 10418 Preconditions.checkNotNull(admin); 10419 synchronized (this) { 10420 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10421 } 10422 10423 final long ident = mInjector.binderClearCallingIdentity(); 10424 try { 10425 IBackupManager ibm = mInjector.getIBackupManager(); 10426 if (ibm != null) { 10427 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, enabled); 10428 } 10429 } catch (RemoteException e) { 10430 throw new IllegalStateException( 10431 "Failed " + (enabled ? "" : "de") + "activating backup service.", e); 10432 } finally { 10433 mInjector.binderRestoreCallingIdentity(ident); 10434 } 10435 } 10436 10437 @Override 10438 public boolean isBackupServiceEnabled(ComponentName admin) { 10439 Preconditions.checkNotNull(admin); 10440 if (!mHasFeature) { 10441 return true; 10442 } 10443 synchronized (this) { 10444 try { 10445 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10446 IBackupManager ibm = mInjector.getIBackupManager(); 10447 return ibm != null && ibm.isBackupServiceActive(UserHandle.USER_SYSTEM); 10448 } catch (RemoteException e) { 10449 throw new IllegalStateException("Failed requesting backup service state.", e); 10450 } 10451 } 10452 } 10453 10454 @Override 10455 public boolean bindDeviceAdminServiceAsUser( 10456 @NonNull ComponentName admin, @NonNull IApplicationThread caller, 10457 @Nullable IBinder activtiyToken, @NonNull Intent serviceIntent, 10458 @NonNull IServiceConnection connection, int flags, @UserIdInt int targetUserId) { 10459 if (!mHasFeature) { 10460 return false; 10461 } 10462 Preconditions.checkNotNull(admin); 10463 Preconditions.checkNotNull(caller); 10464 Preconditions.checkNotNull(serviceIntent); 10465 Preconditions.checkArgument( 10466 serviceIntent.getComponent() != null || serviceIntent.getPackage() != null, 10467 "Service intent must be explicit (with a package name or component): " 10468 + serviceIntent); 10469 Preconditions.checkNotNull(connection); 10470 Preconditions.checkArgument(mInjector.userHandleGetCallingUserId() != targetUserId, 10471 "target user id must be different from the calling user id"); 10472 10473 if (!getBindDeviceAdminTargetUsers(admin).contains(UserHandle.of(targetUserId))) { 10474 throw new SecurityException("Not allowed to bind to target user id"); 10475 } 10476 10477 final String targetPackage; 10478 synchronized (this) { 10479 targetPackage = getOwnerPackageNameForUserLocked(targetUserId); 10480 } 10481 10482 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10483 try { 10484 // Validate and sanitize the incoming service intent. 10485 final Intent sanitizedIntent = 10486 createCrossUserServiceIntent(serviceIntent, targetPackage, targetUserId); 10487 if (sanitizedIntent == null) { 10488 // Fail, cannot lookup the target service. 10489 return false; 10490 } 10491 // Ask ActivityManager to bind it. Notice that we are binding the service with the 10492 // caller app instead of DevicePolicyManagerService. 10493 return mInjector.getIActivityManager().bindService( 10494 caller, activtiyToken, serviceIntent, 10495 serviceIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 10496 connection, flags, mContext.getOpPackageName(), 10497 targetUserId) != 0; 10498 } catch (RemoteException ex) { 10499 // Same process, should not happen. 10500 } finally { 10501 mInjector.binderRestoreCallingIdentity(callingIdentity); 10502 } 10503 10504 // Failed to bind. 10505 return false; 10506 } 10507 10508 @Override 10509 public @NonNull List<UserHandle> getBindDeviceAdminTargetUsers(@NonNull ComponentName admin) { 10510 if (!mHasFeature) { 10511 return Collections.emptyList(); 10512 } 10513 Preconditions.checkNotNull(admin); 10514 10515 synchronized (this) { 10516 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10517 10518 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10519 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10520 try { 10521 ArrayList<UserHandle> targetUsers = new ArrayList<>(); 10522 if (!isDeviceOwner(admin, callingUserId)) { 10523 // Profile owners can only bind to the device owner. 10524 if (canUserBindToDeviceOwnerLocked(callingUserId)) { 10525 targetUsers.add(UserHandle.of(mOwners.getDeviceOwnerUserId())); 10526 } 10527 } else { 10528 // Caller is the device owner: Look for profile owners that it can bind to. 10529 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 10530 for (int i = 0; i < userInfos.size(); i++) { 10531 final int userId = userInfos.get(i).id; 10532 if (userId != callingUserId && canUserBindToDeviceOwnerLocked(userId)) { 10533 targetUsers.add(UserHandle.of(userId)); 10534 } 10535 } 10536 } 10537 10538 return targetUsers; 10539 } finally { 10540 mInjector.binderRestoreCallingIdentity(callingIdentity); 10541 } 10542 } 10543 } 10544 10545 private boolean canUserBindToDeviceOwnerLocked(int userId) { 10546 // There has to be a device owner, under another user id. 10547 if (!mOwners.hasDeviceOwner() || userId == mOwners.getDeviceOwnerUserId()) { 10548 return false; 10549 } 10550 10551 // The user must have a profile owner that belongs to the same package as the device owner. 10552 if (!mOwners.hasProfileOwner(userId) || !TextUtils.equals( 10553 mOwners.getDeviceOwnerPackageName(), mOwners.getProfileOwnerPackage(userId))) { 10554 return false; 10555 } 10556 10557 // The user must be affiliated. 10558 return isUserAffiliatedWithDeviceLocked(userId); 10559 } 10560 10561 /** 10562 * Return true if a given user has any accounts that'll prevent installing a device or profile 10563 * owner {@code owner}. 10564 * - If the user has no accounts, then return false. 10565 * - Otherwise, if the owner is unknown (== null), or is not test-only, then return true. 10566 * - Otherwise, if there's any account that does not have ..._ALLOWED, or does have 10567 * ..._DISALLOWED, return true. 10568 * - Otherwise return false. 10569 * 10570 * If the caller is *not* ADB, it also returns true. The returned value shouldn't be used 10571 * when the caller is not ADB. 10572 * 10573 * DO NOT CALL IT WITH THE DPMS LOCK HELD. 10574 */ 10575 private boolean hasIncompatibleAccountsOrNonAdbNoLock( 10576 int userId, @Nullable ComponentName owner) { 10577 if (!isAdb()) { 10578 return true; 10579 } 10580 wtfIfInLock(); 10581 10582 final long token = mInjector.binderClearCallingIdentity(); 10583 try { 10584 final AccountManager am = AccountManager.get(mContext); 10585 final Account accounts[] = am.getAccountsAsUser(userId); 10586 if (accounts.length == 0) { 10587 return false; 10588 } 10589 synchronized (this) { 10590 if (owner == null || !isAdminTestOnlyLocked(owner, userId)) { 10591 Log.w(LOG_TAG, 10592 "Non test-only owner can't be installed with existing accounts."); 10593 return true; 10594 } 10595 } 10596 10597 final String[] feature_allow = 10598 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_ALLOWED }; 10599 final String[] feature_disallow = 10600 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_DISALLOWED }; 10601 10602 boolean compatible = true; 10603 for (Account account : accounts) { 10604 if (hasAccountFeatures(am, account, feature_disallow)) { 10605 Log.e(LOG_TAG, account + " has " + feature_disallow[0]); 10606 compatible = false; 10607 break; 10608 } 10609 if (!hasAccountFeatures(am, account, feature_allow)) { 10610 Log.e(LOG_TAG, account + " doesn't have " + feature_allow[0]); 10611 compatible = false; 10612 break; 10613 } 10614 } 10615 if (compatible) { 10616 Log.w(LOG_TAG, "All accounts are compatible"); 10617 } else { 10618 Log.e(LOG_TAG, "Found incompatible accounts"); 10619 } 10620 return !compatible; 10621 } finally { 10622 mInjector.binderRestoreCallingIdentity(token); 10623 } 10624 } 10625 10626 private boolean hasAccountFeatures(AccountManager am, Account account, String[] features) { 10627 try { 10628 return am.hasFeatures(account, features, null, null).getResult(); 10629 } catch (Exception e) { 10630 Log.w(LOG_TAG, "Failed to get account feature", e); 10631 return false; 10632 } 10633 } 10634 10635 private boolean isAdb() { 10636 final int callingUid = mInjector.binderGetCallingUid(); 10637 return callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID; 10638 } 10639 10640 @Override 10641 public synchronized void setNetworkLoggingEnabled(ComponentName admin, boolean enabled) { 10642 if (!mHasFeature) { 10643 return; 10644 } 10645 Preconditions.checkNotNull(admin); 10646 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10647 10648 if (enabled == isNetworkLoggingEnabledInternalLocked()) { 10649 // already in the requested state 10650 return; 10651 } 10652 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10653 deviceOwner.isNetworkLoggingEnabled = enabled; 10654 if (!enabled) { 10655 deviceOwner.numNetworkLoggingNotifications = 0; 10656 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 10657 } 10658 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 10659 10660 setNetworkLoggingActiveInternal(enabled); 10661 } 10662 10663 private synchronized void setNetworkLoggingActiveInternal(boolean active) { 10664 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10665 try { 10666 if (active) { 10667 mNetworkLogger = new NetworkLogger(this, mInjector.getPackageManagerInternal()); 10668 if (!mNetworkLogger.startNetworkLogging()) { 10669 mNetworkLogger = null; 10670 Slog.wtf(LOG_TAG, "Network logging could not be started due to the logging" 10671 + " service not being available yet."); 10672 } 10673 maybePauseDeviceWideLoggingLocked(); 10674 sendNetworkLoggingNotificationLocked(); 10675 } else { 10676 if (mNetworkLogger != null && !mNetworkLogger.stopNetworkLogging()) { 10677 Slog.wtf(LOG_TAG, "Network logging could not be stopped due to the logging" 10678 + " service not being available yet."); 10679 } 10680 mNetworkLogger = null; 10681 mInjector.getNotificationManager().cancel(NETWORK_LOGGING_NOTIFICATION_ID); 10682 } 10683 } finally { 10684 mInjector.binderRestoreCallingIdentity(callingIdentity); 10685 } 10686 } 10687 10688 /** Pauses security and network logging if there are unaffiliated users on the device */ 10689 private void maybePauseDeviceWideLoggingLocked() { 10690 if (!areAllUsersAffiliatedWithDeviceLocked()) { 10691 Slog.i(LOG_TAG, "There are unaffiliated users, security and network logging will be " 10692 + "paused if enabled."); 10693 mSecurityLogMonitor.pause(); 10694 if (mNetworkLogger != null) { 10695 mNetworkLogger.pause(); 10696 } 10697 } 10698 } 10699 10700 /** Resumes security and network logging (if they are enabled) if all users are affiliated */ 10701 private void maybeResumeDeviceWideLoggingLocked() { 10702 if (areAllUsersAffiliatedWithDeviceLocked()) { 10703 final long ident = mInjector.binderClearCallingIdentity(); 10704 try { 10705 mSecurityLogMonitor.resume(); 10706 if (mNetworkLogger != null) { 10707 mNetworkLogger.resume(); 10708 } 10709 } finally { 10710 mInjector.binderRestoreCallingIdentity(ident); 10711 } 10712 } 10713 } 10714 10715 /** Deletes any security and network logs that might have been collected so far */ 10716 private void discardDeviceWideLogsLocked() { 10717 mSecurityLogMonitor.discardLogs(); 10718 if (mNetworkLogger != null) { 10719 mNetworkLogger.discardLogs(); 10720 } 10721 // TODO: We should discard pre-boot security logs here too, as otherwise those 10722 // logs (which might contain data from the user just removed) will be 10723 // available after next boot. 10724 } 10725 10726 @Override 10727 public boolean isNetworkLoggingEnabled(ComponentName admin) { 10728 if (!mHasFeature) { 10729 return false; 10730 } 10731 synchronized (this) { 10732 enforceDeviceOwnerOrManageUsers(); 10733 return isNetworkLoggingEnabledInternalLocked(); 10734 } 10735 } 10736 10737 private boolean isNetworkLoggingEnabledInternalLocked() { 10738 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10739 return (deviceOwner != null) && deviceOwner.isNetworkLoggingEnabled; 10740 } 10741 10742 /* 10743 * A maximum of 1200 events are returned, and the total marshalled size is in the order of 10744 * 100kB, so returning a List instead of ParceledListSlice is acceptable. 10745 * Ideally this would be done with ParceledList, however it only supports homogeneous types. 10746 * 10747 * @see NetworkLoggingHandler#MAX_EVENTS_PER_BATCH 10748 */ 10749 @Override 10750 public List<NetworkEvent> retrieveNetworkLogs(ComponentName admin, long batchToken) { 10751 if (!mHasFeature) { 10752 return null; 10753 } 10754 Preconditions.checkNotNull(admin); 10755 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10756 10757 synchronized (this) { 10758 if (mNetworkLogger == null 10759 || !isNetworkLoggingEnabledInternalLocked()) { 10760 return null; 10761 } 10762 10763 final long currentTime = System.currentTimeMillis(); 10764 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 10765 if (currentTime > policyData.mLastNetworkLogsRetrievalTime) { 10766 policyData.mLastNetworkLogsRetrievalTime = currentTime; 10767 saveSettingsLocked(UserHandle.USER_SYSTEM); 10768 } 10769 return mNetworkLogger.retrieveLogs(batchToken); 10770 } 10771 } 10772 10773 private void sendNetworkLoggingNotificationLocked() { 10774 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10775 if (deviceOwner == null || !deviceOwner.isNetworkLoggingEnabled) { 10776 return; 10777 } 10778 if (deviceOwner.numNetworkLoggingNotifications >= 10779 ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 10780 return; 10781 } 10782 final long now = System.currentTimeMillis(); 10783 if (now - deviceOwner.lastNetworkLoggingNotificationTimeMs < MS_PER_DAY) { 10784 return; 10785 } 10786 deviceOwner.numNetworkLoggingNotifications++; 10787 if (deviceOwner.numNetworkLoggingNotifications 10788 >= ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 10789 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 10790 } else { 10791 deviceOwner.lastNetworkLoggingNotificationTimeMs = now; 10792 } 10793 final Intent intent = new Intent(DevicePolicyManager.ACTION_SHOW_DEVICE_MONITORING_DIALOG); 10794 intent.setPackage("com.android.systemui"); 10795 final PendingIntent pendingIntent = PendingIntent.getBroadcastAsUser(mContext, 0, intent, 0, 10796 UserHandle.CURRENT); 10797 Notification notification = 10798 new Notification.Builder(mContext, SystemNotificationChannels.DEVICE_ADMIN) 10799 .setSmallIcon(R.drawable.ic_qs_network_logging) 10800 .setContentTitle(mContext.getString(R.string.network_logging_notification_title)) 10801 .setContentText(mContext.getString(R.string.network_logging_notification_text)) 10802 .setTicker(mContext.getString(R.string.network_logging_notification_title)) 10803 .setShowWhen(true) 10804 .setContentIntent(pendingIntent) 10805 .build(); 10806 mInjector.getNotificationManager().notify(NETWORK_LOGGING_NOTIFICATION_ID, notification); 10807 saveSettingsLocked(mOwners.getDeviceOwnerUserId()); 10808 } 10809 10810 /** 10811 * Return the package name of owner in a given user. 10812 */ 10813 private String getOwnerPackageNameForUserLocked(int userId) { 10814 return mOwners.getDeviceOwnerUserId() == userId 10815 ? mOwners.getDeviceOwnerPackageName() 10816 : mOwners.getProfileOwnerPackage(userId); 10817 } 10818 10819 /** 10820 * @param rawIntent Original service intent specified by caller. It must be explicit. 10821 * @param expectedPackageName The expected package name of the resolved service. 10822 * @return Intent that have component explicitly set. {@code null} if no service is resolved 10823 * with the given intent. 10824 * @throws SecurityException if the intent is resolved to an invalid service. 10825 */ 10826 private Intent createCrossUserServiceIntent( 10827 @NonNull Intent rawIntent, @NonNull String expectedPackageName, 10828 @UserIdInt int targetUserId) throws RemoteException, SecurityException { 10829 ResolveInfo info = mIPackageManager.resolveService( 10830 rawIntent, 10831 rawIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 10832 0, // flags 10833 targetUserId); 10834 if (info == null || info.serviceInfo == null) { 10835 Log.e(LOG_TAG, "Fail to look up the service: " + rawIntent 10836 + " or user " + targetUserId + " is not running"); 10837 return null; 10838 } 10839 if (!expectedPackageName.equals(info.serviceInfo.packageName)) { 10840 throw new SecurityException("Only allow to bind service in " + expectedPackageName); 10841 } 10842 if (info.serviceInfo.exported) { 10843 throw new SecurityException("The service must be unexported"); 10844 } 10845 // It is the system server to bind the service, it would be extremely dangerous if it 10846 // can be exploited to bind any service. Set the component explicitly to make sure we 10847 // do not bind anything accidentally. 10848 rawIntent.setComponent(info.serviceInfo.getComponentName()); 10849 return rawIntent; 10850 } 10851 10852 @Override 10853 public long getLastSecurityLogRetrievalTime() { 10854 enforceDeviceOwnerOrManageUsers(); 10855 return getUserData(UserHandle.USER_SYSTEM).mLastSecurityLogRetrievalTime; 10856 } 10857 10858 @Override 10859 public long getLastBugReportRequestTime() { 10860 enforceDeviceOwnerOrManageUsers(); 10861 return getUserData(UserHandle.USER_SYSTEM).mLastBugReportRequestTime; 10862 } 10863 10864 @Override 10865 public long getLastNetworkLogRetrievalTime() { 10866 enforceDeviceOwnerOrManageUsers(); 10867 return getUserData(UserHandle.USER_SYSTEM).mLastNetworkLogsRetrievalTime; 10868 } 10869 10870 @Override 10871 public boolean setResetPasswordToken(ComponentName admin, byte[] token) { 10872 if (!mHasFeature) { 10873 return false; 10874 } 10875 if (token == null || token.length < 32) { 10876 throw new IllegalArgumentException("token must be at least 32-byte long"); 10877 } 10878 synchronized (this) { 10879 final int userHandle = mInjector.userHandleGetCallingUserId(); 10880 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10881 10882 DevicePolicyData policy = getUserData(userHandle); 10883 long ident = mInjector.binderClearCallingIdentity(); 10884 try { 10885 if (policy.mPasswordTokenHandle != 0) { 10886 mLockPatternUtils.removeEscrowToken(policy.mPasswordTokenHandle, userHandle); 10887 } 10888 10889 policy.mPasswordTokenHandle = mLockPatternUtils.addEscrowToken(token, userHandle); 10890 saveSettingsLocked(userHandle); 10891 return policy.mPasswordTokenHandle != 0; 10892 } finally { 10893 mInjector.binderRestoreCallingIdentity(ident); 10894 } 10895 } 10896 } 10897 10898 @Override 10899 public boolean clearResetPasswordToken(ComponentName admin) { 10900 if (!mHasFeature) { 10901 return false; 10902 } 10903 synchronized (this) { 10904 final int userHandle = mInjector.userHandleGetCallingUserId(); 10905 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10906 10907 DevicePolicyData policy = getUserData(userHandle); 10908 if (policy.mPasswordTokenHandle != 0) { 10909 long ident = mInjector.binderClearCallingIdentity(); 10910 try { 10911 boolean result = mLockPatternUtils.removeEscrowToken( 10912 policy.mPasswordTokenHandle, userHandle); 10913 policy.mPasswordTokenHandle = 0; 10914 saveSettingsLocked(userHandle); 10915 return result; 10916 } finally { 10917 mInjector.binderRestoreCallingIdentity(ident); 10918 } 10919 } 10920 } 10921 return false; 10922 } 10923 10924 @Override 10925 public boolean isResetPasswordTokenActive(ComponentName admin) { 10926 synchronized (this) { 10927 final int userHandle = mInjector.userHandleGetCallingUserId(); 10928 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10929 10930 DevicePolicyData policy = getUserData(userHandle); 10931 if (policy.mPasswordTokenHandle != 0) { 10932 long ident = mInjector.binderClearCallingIdentity(); 10933 try { 10934 return mLockPatternUtils.isEscrowTokenActive(policy.mPasswordTokenHandle, 10935 userHandle); 10936 } finally { 10937 mInjector.binderRestoreCallingIdentity(ident); 10938 } 10939 } 10940 } 10941 return false; 10942 } 10943 10944 @Override 10945 public boolean resetPasswordWithToken(ComponentName admin, String passwordOrNull, byte[] token, 10946 int flags) { 10947 Preconditions.checkNotNull(token); 10948 synchronized (this) { 10949 final int userHandle = mInjector.userHandleGetCallingUserId(); 10950 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10951 10952 DevicePolicyData policy = getUserData(userHandle); 10953 if (policy.mPasswordTokenHandle != 0) { 10954 final String password = passwordOrNull != null ? passwordOrNull : ""; 10955 return resetPasswordInternal(password, policy.mPasswordTokenHandle, token, 10956 flags, mInjector.binderGetCallingUid(), userHandle); 10957 } else { 10958 Slog.w(LOG_TAG, "No saved token handle"); 10959 } 10960 } 10961 return false; 10962 } 10963 10964 @Override 10965 public boolean isDefaultInputMethodSetByOwner(@NonNull UserHandle user) { 10966 final int userId = user.getIdentifier(); 10967 enforceProfileOwnerOrSystemUser(null); 10968 if (!isCallerWithSystemUid() && mInjector.userHandleGetCallingUserId() != userId) { 10969 throw new SecurityException( 10970 "Only the system can use this method to query information about another user"); 10971 } 10972 return getUserData(userId).mDefaultInputMethodSet; 10973 } 10974 10975 @Override 10976 public StringParceledListSlice getOwnerInstalledCaCerts(@NonNull UserHandle user) { 10977 final int userId = user.getIdentifier(); 10978 enforceProfileOwnerOrFullCrossUsersPermission(userId); 10979 synchronized (this) { 10980 return new StringParceledListSlice( 10981 new ArrayList<>(getUserData(userId).mOwnerInstalledCaCerts)); 10982 } 10983 } 10984} 10985