DevicePolicyManagerService.java revision dd903d4f0ee4cebcef03e54f5b07f4bcc14c5dbc
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.WIPE_EXTERNAL_STORAGE; 45import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 46import static android.content.pm.PackageManager.MATCH_UNINSTALLED_PACKAGES; 47 48import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_ENTRY_POINT_ADB; 49import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 50import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 51import static org.xmlpull.v1.XmlPullParser.END_TAG; 52import static org.xmlpull.v1.XmlPullParser.TEXT; 53 54import android.Manifest.permission; 55import android.accessibilityservice.AccessibilityServiceInfo; 56import android.accounts.Account; 57import android.accounts.AccountManager; 58import android.annotation.NonNull; 59import android.annotation.Nullable; 60import android.annotation.UserIdInt; 61import android.app.Activity; 62import android.app.ActivityManager; 63import android.app.ActivityManagerInternal; 64import android.app.AlarmManager; 65import android.app.AppGlobals; 66import android.app.IActivityManager; 67import android.app.IApplicationThread; 68import android.app.IServiceConnection; 69import android.app.Notification; 70import android.app.NotificationManager; 71import android.app.PendingIntent; 72import android.app.StatusBarManager; 73import android.app.admin.DeviceAdminInfo; 74import android.app.admin.DeviceAdminReceiver; 75import android.app.admin.DevicePolicyManager; 76import android.app.admin.DevicePolicyManagerInternal; 77import android.app.admin.IDevicePolicyManager; 78import android.app.admin.NetworkEvent; 79import android.app.admin.PasswordMetrics; 80import android.app.admin.SystemUpdateInfo; 81import android.app.admin.SecurityLog; 82import android.app.admin.SecurityLog.SecurityEvent; 83import android.app.admin.SystemUpdatePolicy; 84import android.app.backup.IBackupManager; 85import android.app.trust.TrustManager; 86import android.content.BroadcastReceiver; 87import android.content.ComponentName; 88import android.content.Context; 89import android.content.Intent; 90import android.content.IntentFilter; 91import android.content.pm.ActivityInfo; 92import android.content.pm.ApplicationInfo; 93import android.content.pm.IPackageManager; 94import android.content.pm.PackageInfo; 95import android.content.pm.PackageManager; 96import android.content.pm.PackageManager.NameNotFoundException; 97import android.content.pm.PackageManagerInternal; 98import android.content.pm.ParceledListSlice; 99import android.content.pm.ResolveInfo; 100import android.content.pm.ServiceInfo; 101import android.content.pm.UserInfo; 102import android.content.res.Resources; 103import android.database.ContentObserver; 104import android.graphics.Bitmap; 105import android.graphics.Color; 106import android.media.AudioManager; 107import android.media.IAudioService; 108import android.net.ConnectivityManager; 109import android.net.IIpConnectivityMetrics; 110import android.net.ProxyInfo; 111import android.net.Uri; 112import android.net.metrics.IpConnectivityLog; 113import android.net.wifi.WifiInfo; 114import android.net.wifi.WifiManager; 115import android.os.AsyncTask; 116import android.os.Binder; 117import android.os.Build; 118import android.os.Bundle; 119import android.os.Environment; 120import android.os.FileUtils; 121import android.os.Handler; 122import android.os.IBinder; 123import android.os.Looper; 124import android.os.ParcelFileDescriptor; 125import android.os.PersistableBundle; 126import android.os.PowerManager; 127import android.os.PowerManagerInternal; 128import android.os.Process; 129import android.os.RecoverySystem; 130import android.os.RemoteCallback; 131import android.os.RemoteException; 132import android.os.ServiceManager; 133import android.os.SystemClock; 134import android.os.SystemProperties; 135import android.os.UserHandle; 136import android.os.UserManager; 137import android.os.UserManagerInternal; 138import android.os.storage.StorageManager; 139import android.provider.ContactsContract.QuickContact; 140import android.provider.ContactsInternal; 141import android.provider.Settings; 142import android.security.Credentials; 143import android.security.IKeyChainAliasCallback; 144import android.security.IKeyChainService; 145import android.security.KeyChain; 146import android.security.KeyChain.KeyChainConnection; 147import android.service.persistentdata.PersistentDataBlockManager; 148import android.telephony.TelephonyManager; 149import android.text.TextUtils; 150import android.util.ArrayMap; 151import android.util.ArraySet; 152import android.util.Log; 153import android.util.Pair; 154import android.util.Slog; 155import android.util.SparseArray; 156import android.util.Xml; 157import android.view.IWindowManager; 158import android.view.accessibility.AccessibilityManager; 159import android.view.accessibility.IAccessibilityManager; 160import android.view.inputmethod.InputMethodInfo; 161import android.view.inputmethod.InputMethodManager; 162 163import com.android.internal.R; 164import com.android.internal.annotations.GuardedBy; 165import com.android.internal.annotations.VisibleForTesting; 166import com.android.internal.logging.MetricsLogger; 167import com.android.internal.statusbar.IStatusBarService; 168import com.android.internal.util.FastXmlSerializer; 169import com.android.internal.util.JournaledFile; 170import com.android.internal.util.ParcelableString; 171import com.android.internal.util.Preconditions; 172import com.android.internal.util.XmlUtils; 173import com.android.internal.widget.LockPatternUtils; 174import com.android.server.LocalServices; 175import com.android.server.SystemService; 176import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 177import com.android.server.pm.UserRestrictionsUtils; 178import com.google.android.collect.Sets; 179 180import org.xmlpull.v1.XmlPullParser; 181import org.xmlpull.v1.XmlPullParserException; 182import org.xmlpull.v1.XmlSerializer; 183 184import java.io.ByteArrayInputStream; 185import java.io.File; 186import java.io.FileDescriptor; 187import java.io.FileInputStream; 188import java.io.FileNotFoundException; 189import java.io.FileOutputStream; 190import java.io.IOException; 191import java.io.PrintWriter; 192import java.nio.charset.StandardCharsets; 193import java.security.cert.CertificateException; 194import java.security.cert.CertificateFactory; 195import java.security.cert.X509Certificate; 196import java.text.DateFormat; 197import java.text.NumberFormat; 198import java.util.ArrayList; 199import java.util.Arrays; 200import java.util.Collection; 201import java.util.Collections; 202import java.util.Date; 203import java.util.List; 204import java.util.Map.Entry; 205import java.util.Set; 206import java.util.concurrent.TimeUnit; 207import java.util.concurrent.atomic.AtomicBoolean; 208 209/** 210 * Implementation of the device policy APIs. 211 */ 212public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 213 214 protected static final String LOG_TAG = "DevicePolicyManager"; 215 216 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 217 218 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 219 220 private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate"; 221 222 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 223 224 private static final String TAG_STATUS_BAR = "statusbar"; 225 226 private static final String ATTR_DISABLED = "disabled"; 227 228 private static final String ATTR_NAME = "name"; 229 230 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 231 "do-not-ask-credentials-on-boot"; 232 233 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 234 235 private static final String TAG_LAST_SECURITY_LOG_RETRIEVAL = "last-security-log-retrieval"; 236 237 private static final String TAG_LAST_BUG_REPORT_REQUEST = "last-bug-report-request"; 238 239 private static final String TAG_LAST_NETWORK_LOG_RETRIEVAL = "last-network-log-retrieval"; 240 241 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 242 243 private static final String TAG_DEFAULT_INPUT_METHOD_SET = "default-ime-set"; 244 245 private static final String ATTR_ID = "id"; 246 247 private static final String ATTR_VALUE = "value"; 248 249 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 250 251 private static final String TAG_PASSWORD_TOKEN_HANDLE = "password-token"; 252 253 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 254 255 private static final long MS_PER_DAY = TimeUnit.DAYS.toMillis(1); 256 257 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 258 259 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 260 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 261 262 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 263 private static final int NETWORK_LOGGING_NOTIFICATION_ID = 1002; 264 265 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 266 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 267 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 268 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 269 private static final String ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED = 270 "device-provisioning-config-applied"; 271 private static final String ATTR_DEVICE_PAIRED = "device-paired"; 272 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 273 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 274 = "application-restrictions-manager"; 275 276 // Comprehensive list of delegations. 277 private static final String DELEGATIONS[] = { 278 DELEGATION_CERT_INSTALL, 279 DELEGATION_APP_RESTRICTIONS, 280 DELEGATION_BLOCK_UNINSTALL, 281 DELEGATION_ENABLE_SYSTEM_APP, 282 DELEGATION_KEEP_UNINSTALLED_PACKAGES, 283 DELEGATION_PACKAGE_ACCESS, 284 DELEGATION_PERMISSION_GRANT 285 }; 286 287 /** 288 * System property whose value is either "true" or "false", indicating whether 289 * device owner is present. 290 */ 291 private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner"; 292 293 private static final int STATUS_BAR_DISABLE_MASK = 294 StatusBarManager.DISABLE_EXPAND | 295 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 296 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 297 StatusBarManager.DISABLE_SEARCH; 298 299 private static final int STATUS_BAR_DISABLE2_MASK = 300 StatusBarManager.DISABLE2_QUICK_SETTINGS; 301 302 private static final Set<String> SECURE_SETTINGS_WHITELIST; 303 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 304 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 305 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 306 static { 307 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 308 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 309 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 310 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 311 312 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 313 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 314 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 315 316 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 317 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 318 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 319 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 320 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 321 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 322 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 323 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 324 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 325 326 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 327 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 328 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 329 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 330 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 331 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 332 } 333 334 /** 335 * Keyguard features that when set on a managed profile that doesn't have its own challenge will 336 * affect the profile's parent user. These can also be set on the managed profile's parent DPM 337 * instance. 338 */ 339 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 340 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 341 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 342 343 /** 344 * Keyguard features that when set on a profile affect the profile content or challenge only. 345 * These cannot be set on the managed profile's parent DPM instance 346 */ 347 private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY = 348 DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 349 350 /** Keyguard features that are allowed to be set on a managed profile */ 351 private static final int PROFILE_KEYGUARD_FEATURES = 352 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY; 353 354 private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000; 355 356 /** 357 * Minimum timeout in milliseconds after which unlocking with weak auth times out, 358 * i.e. the user has to use a strong authentication method like password, PIN or pattern. 359 */ 360 private static final long MINIMUM_STRONG_AUTH_TIMEOUT_MS = TimeUnit.HOURS.toMillis(1); 361 362 /** 363 * Strings logged with {@link 364 * com.android.internal.logging.nano.MetricsProto.MetricsEvent#PROVISIONING_ENTRY_POINT_ADB}. 365 */ 366 private static final String LOG_TAG_PROFILE_OWNER = "profile-owner"; 367 private static final String LOG_TAG_DEVICE_OWNER = "device-owner"; 368 369 final Context mContext; 370 final Injector mInjector; 371 final IPackageManager mIPackageManager; 372 final UserManager mUserManager; 373 final UserManagerInternal mUserManagerInternal; 374 final TelephonyManager mTelephonyManager; 375 private final LockPatternUtils mLockPatternUtils; 376 377 /** 378 * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p 379 * is requested for user u. 380 */ 381 private final Set<Pair<String, Integer>> mPackagesToRemove = 382 new ArraySet<Pair<String, Integer>>(); 383 384 final LocalService mLocalService; 385 386 // Stores and loads state on device and profile owners. 387 @VisibleForTesting 388 final Owners mOwners; 389 390 private final Binder mToken = new Binder(); 391 392 /** 393 * Whether or not device admin feature is supported. If it isn't return defaults for all 394 * public methods. 395 */ 396 boolean mHasFeature; 397 398 /** 399 * Whether or not this device is a watch. 400 */ 401 boolean mIsWatch; 402 403 private final SecurityLogMonitor mSecurityLogMonitor; 404 private NetworkLogger mNetworkLogger; 405 406 private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean(); 407 private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean(); 408 409 private SetupContentObserver mSetupContentObserver; 410 411 private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() { 412 @Override 413 public void run() { 414 if(mRemoteBugreportServiceIsActive.get()) { 415 onBugreportFailed(); 416 } 417 } 418 }; 419 420 /** Listens only if mHasFeature == true. */ 421 private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() { 422 423 @Override 424 public void onReceive(Context context, Intent intent) { 425 if (DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction()) 426 && mRemoteBugreportServiceIsActive.get()) { 427 onBugreportFinished(intent); 428 } 429 } 430 }; 431 432 /** Listens only if mHasFeature == true. */ 433 private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() { 434 435 @Override 436 public void onReceive(Context context, Intent intent) { 437 String action = intent.getAction(); 438 mInjector.getNotificationManager().cancel(LOG_TAG, 439 RemoteBugreportUtils.NOTIFICATION_ID); 440 if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED.equals(action)) { 441 onBugreportSharingAccepted(); 442 } else if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED.equals(action)) { 443 onBugreportSharingDeclined(); 444 } 445 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 446 } 447 }; 448 449 public static final class Lifecycle extends SystemService { 450 private DevicePolicyManagerService mService; 451 452 public Lifecycle(Context context) { 453 super(context); 454 mService = new DevicePolicyManagerService(context); 455 } 456 457 @Override 458 public void onStart() { 459 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 460 } 461 462 @Override 463 public void onBootPhase(int phase) { 464 mService.systemReady(phase); 465 } 466 467 @Override 468 public void onStartUser(int userHandle) { 469 mService.onStartUser(userHandle); 470 } 471 } 472 473 public static class DevicePolicyData { 474 @NonNull PasswordMetrics mActivePasswordMetrics = new PasswordMetrics(); 475 int mFailedPasswordAttempts = 0; 476 477 int mUserHandle; 478 int mPasswordOwner = -1; 479 long mLastMaximumTimeToLock = -1; 480 boolean mUserSetupComplete = false; 481 boolean mPaired = false; 482 int mUserProvisioningState; 483 int mPermissionPolicy; 484 485 boolean mDeviceProvisioningConfigApplied = false; 486 487 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 488 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 489 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 490 491 final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>(); 492 493 // This is the list of component allowed to start lock task mode. 494 List<String> mLockTaskPackages = new ArrayList<>(); 495 496 boolean mStatusBarDisabled = false; 497 498 ComponentName mRestrictionsProvider; 499 500 // Map of delegate package to delegation scopes 501 final ArrayMap<String, List<String>> mDelegationMap = new ArrayMap<>(); 502 503 boolean doNotAskCredentialsOnBoot = false; 504 505 Set<String> mAffiliationIds = new ArraySet<>(); 506 507 long mLastSecurityLogRetrievalTime = -1; 508 509 long mLastBugReportRequestTime = -1; 510 511 long mLastNetworkLogsRetrievalTime = -1; 512 513 boolean mDefaultInputMethodSet = false; 514 515 // Used for initialization of users created by createAndManageUsers. 516 boolean mAdminBroadcastPending = false; 517 PersistableBundle mInitBundle = null; 518 519 long mPasswordTokenHandle = 0; 520 521 public DevicePolicyData(int userHandle) { 522 mUserHandle = userHandle; 523 } 524 } 525 526 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 527 528 final Handler mHandler; 529 530 /** Listens on any device, even when mHasFeature == false. */ 531 final BroadcastReceiver mRootCaReceiver = new BroadcastReceiver() { 532 @Override 533 public void onReceive(Context context, Intent intent) { 534 if (StorageManager.inCryptKeeperBounce()) { 535 return; 536 } 537 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, getSendingUserId()); 538 new MonitoringCertNotificationTask(DevicePolicyManagerService.this, mInjector) 539 .execute(userHandle); 540 } 541 }; 542 543 /** Listens only if mHasFeature == true. */ 544 final BroadcastReceiver mReceiver = new BroadcastReceiver() { 545 @Override 546 public void onReceive(Context context, Intent intent) { 547 final String action = intent.getAction(); 548 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 549 getSendingUserId()); 550 551 /* 552 * Network logging would ideally be started in setDeviceOwnerSystemPropertyLocked(), 553 * however it's too early in the boot process to register with IIpConnectivityMetrics 554 * to listen for events. 555 */ 556 if (Intent.ACTION_USER_STARTED.equals(action) 557 && userHandle == mOwners.getDeviceOwnerUserId()) { 558 synchronized (DevicePolicyManagerService.this) { 559 if (isNetworkLoggingEnabledInternalLocked()) { 560 setNetworkLoggingActiveInternal(true); 561 } 562 } 563 } 564 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 565 && userHandle == mOwners.getDeviceOwnerUserId() 566 && getDeviceOwnerRemoteBugreportUri() != null) { 567 IntentFilter filterConsent = new IntentFilter(); 568 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 569 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 570 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 571 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 572 RemoteBugreportUtils.NOTIFICATION_ID, 573 RemoteBugreportUtils.buildNotification(mContext, 574 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 575 UserHandle.ALL); 576 } 577 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 578 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 579 if (VERBOSE_LOG) { 580 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 581 + action + " for user " + userHandle); 582 } 583 mHandler.post(new Runnable() { 584 @Override 585 public void run() { 586 handlePasswordExpirationNotification(userHandle); 587 } 588 }); 589 } 590 591 if (Intent.ACTION_USER_ADDED.equals(action)) { 592 sendUserAddedOrRemovedCommand(DeviceAdminReceiver.ACTION_USER_ADDED, userHandle); 593 synchronized (DevicePolicyManagerService.this) { 594 // It might take a while for the user to become affiliated. Make security 595 // and network logging unavailable in the meantime. 596 maybePauseDeviceWideLoggingLocked(); 597 } 598 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 599 sendUserAddedOrRemovedCommand(DeviceAdminReceiver.ACTION_USER_REMOVED, userHandle); 600 synchronized (DevicePolicyManagerService.this) { 601 // Check whether the user is affiliated, *before* removing its data. 602 boolean isRemovedUserAffiliated = isUserAffiliatedWithDeviceLocked(userHandle); 603 removeUserData(userHandle); 604 if (!isRemovedUserAffiliated) { 605 // We discard the logs when unaffiliated users are deleted (so that the 606 // device owner cannot retrieve data about that user after it's gone). 607 discardDeviceWideLogsLocked(); 608 // Resume logging if all remaining users are affiliated. 609 maybeResumeDeviceWideLoggingLocked(); 610 } 611 } 612 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 613 synchronized (DevicePolicyManagerService.this) { 614 // Reset the policy data 615 mUserData.remove(userHandle); 616 sendAdminEnabledBroadcastLocked(userHandle); 617 } 618 handlePackagesChanged(null /* check all admins */, userHandle); 619 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 620 handlePackagesChanged(null /* check all admins */, userHandle); 621 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 622 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 623 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 624 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 625 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 626 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 627 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 628 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 629 clearWipeProfileNotification(); 630 } 631 } 632 633 private void sendUserAddedOrRemovedCommand(String action, int userHandle) { 634 synchronized (DevicePolicyManagerService.this) { 635 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 636 if (deviceOwner != null) { 637 Bundle extras = new Bundle(); 638 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 639 sendAdminCommandLocked(deviceOwner, action, extras, null); 640 } 641 } 642 } 643 }; 644 645 static class ActiveAdmin { 646 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 647 private static final String TAG_TEST_ONLY_ADMIN = "test-only-admin"; 648 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 649 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 650 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 651 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 652 = "disable-bt-contacts-sharing"; 653 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 654 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 655 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 656 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 657 private static final String TAG_IS_NETWORK_LOGGING_ENABLED = "is_network_logging_enabled"; 658 private static final String TAG_ACCOUNT_TYPE = "account-type"; 659 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 660 = "permitted-accessiblity-services"; 661 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 662 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 663 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 664 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 665 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 666 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 667 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 668 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 669 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 670 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 671 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 672 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 673 private static final String TAG_STRONG_AUTH_UNLOCK_TIMEOUT = "strong-auth-unlock-timeout"; 674 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 675 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 676 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 677 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 678 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 679 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 680 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 681 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 682 private static final String ATTR_VALUE = "value"; 683 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 684 private static final String TAG_POLICIES = "policies"; 685 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 686 "cross-profile-widget-providers"; 687 private static final String TAG_PROVIDER = "provider"; 688 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 689 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 690 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 691 private static final String TAG_DEFAULT_ENABLED_USER_RESTRICTIONS = 692 "default-enabled-user-restrictions"; 693 private static final String TAG_RESTRICTION = "restriction"; 694 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 695 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 696 private static final String TAG_PARENT_ADMIN = "parent-admin"; 697 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 698 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 699 private static final String ATTR_LAST_NETWORK_LOGGING_NOTIFICATION = "last-notification"; 700 private static final String ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS = "num-notifications"; 701 702 final DeviceAdminInfo info; 703 704 705 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 706 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 707 708 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 709 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 710 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 711 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 712 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 713 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 714 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 715 @NonNull 716 PasswordMetrics minimumPasswordMetrics = new PasswordMetrics( 717 DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED, DEF_MINIMUM_PASSWORD_LENGTH, 718 DEF_MINIMUM_PASSWORD_LETTERS, DEF_MINIMUM_PASSWORD_UPPER_CASE, 719 DEF_MINIMUM_PASSWORD_LOWER_CASE, DEF_MINIMUM_PASSWORD_NUMERIC, 720 DEF_MINIMUM_PASSWORD_SYMBOLS, DEF_MINIMUM_PASSWORD_NON_LETTER); 721 722 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 723 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 724 725 long strongAuthUnlockTimeout = 0; // admin doesn't participate by default 726 727 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 728 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 729 730 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 731 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 732 733 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 734 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 735 736 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 737 738 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 739 740 boolean encryptionRequested = false; 741 boolean testOnlyAdmin = false; 742 boolean disableCamera = false; 743 boolean disableCallerId = false; 744 boolean disableContactsSearch = false; 745 boolean disableBluetoothContactSharing = true; 746 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 747 boolean requireAutoTime = false; // Can only be set by a device owner. 748 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 749 boolean isNetworkLoggingEnabled = false; // Can only be set by a device owner. 750 751 // one notification after enabling + 3 more after reboots 752 static final int DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN = 4; 753 int numNetworkLoggingNotifications = 0; 754 long lastNetworkLoggingNotificationTimeMs = 0; // Time in milliseconds since epoch 755 756 ActiveAdmin parentAdmin; 757 final boolean isParent; 758 759 static class TrustAgentInfo { 760 public PersistableBundle options; 761 TrustAgentInfo(PersistableBundle bundle) { 762 options = bundle; 763 } 764 } 765 766 final Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 767 768 // The list of permitted accessibility services package namesas set by a profile 769 // or device owner. Null means all accessibility services are allowed, empty means 770 // none except system services are allowed. 771 List<String> permittedAccessiblityServices; 772 773 // The list of permitted input methods package names as set by a profile or device owner. 774 // Null means all input methods are allowed, empty means none except system imes are 775 // allowed. 776 List<String> permittedInputMethods; 777 778 // List of package names to keep cached. 779 List<String> keepUninstalledPackages; 780 781 // TODO: review implementation decisions with frameworks team 782 boolean specifiesGlobalProxy = false; 783 String globalProxySpec = null; 784 String globalProxyExclusionList = null; 785 786 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 787 788 List<String> crossProfileWidgetProviders; 789 790 Bundle userRestrictions; 791 792 // User restrictions that have already been enabled by default for this admin (either when 793 // setting the device or profile owner, or during a system update if one of those "enabled 794 // by default" restrictions is newly added). 795 final Set<String> defaultEnabledRestrictionsAlreadySet = new ArraySet<>(); 796 797 // Support text provided by the admin to display to the user. 798 CharSequence shortSupportMessage = null; 799 CharSequence longSupportMessage = null; 800 801 // Background color of confirm credentials screen. Default: teal. 802 static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B"); 803 int organizationColor = DEF_ORGANIZATION_COLOR; 804 805 // Default title of confirm credentials screen 806 String organizationName = null; 807 808 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 809 info = _info; 810 isParent = parent; 811 } 812 813 ActiveAdmin getParentActiveAdmin() { 814 Preconditions.checkState(!isParent); 815 816 if (parentAdmin == null) { 817 parentAdmin = new ActiveAdmin(info, /* parent */ true); 818 } 819 return parentAdmin; 820 } 821 822 boolean hasParentActiveAdmin() { 823 return parentAdmin != null; 824 } 825 826 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 827 828 public UserHandle getUserHandle() { 829 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 830 } 831 832 void writeToXml(XmlSerializer out) 833 throws IllegalArgumentException, IllegalStateException, IOException { 834 out.startTag(null, TAG_POLICIES); 835 info.writePoliciesToXml(out); 836 out.endTag(null, TAG_POLICIES); 837 if (minimumPasswordMetrics.quality 838 != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 839 out.startTag(null, TAG_PASSWORD_QUALITY); 840 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.quality)); 841 out.endTag(null, TAG_PASSWORD_QUALITY); 842 if (minimumPasswordMetrics.length != DEF_MINIMUM_PASSWORD_LENGTH) { 843 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 844 out.attribute( 845 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.length)); 846 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 847 } 848 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 849 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 850 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 851 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 852 } 853 if (minimumPasswordMetrics.upperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 854 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 855 out.attribute( 856 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.upperCase)); 857 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 858 } 859 if (minimumPasswordMetrics.lowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 860 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 861 out.attribute( 862 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.lowerCase)); 863 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 864 } 865 if (minimumPasswordMetrics.letters != DEF_MINIMUM_PASSWORD_LETTERS) { 866 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 867 out.attribute( 868 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.letters)); 869 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 870 } 871 if (minimumPasswordMetrics.numeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 872 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 873 out.attribute( 874 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.numeric)); 875 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 876 } 877 if (minimumPasswordMetrics.symbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 878 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 879 out.attribute( 880 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.symbols)); 881 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 882 } 883 if (minimumPasswordMetrics.nonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 884 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 885 out.attribute( 886 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.nonLetter)); 887 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 888 } 889 } 890 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 891 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 892 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 893 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 894 } 895 if (strongAuthUnlockTimeout != DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 896 out.startTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 897 out.attribute(null, ATTR_VALUE, Long.toString(strongAuthUnlockTimeout)); 898 out.endTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 899 } 900 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 901 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 902 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 903 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 904 } 905 if (specifiesGlobalProxy) { 906 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 907 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 908 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 909 if (globalProxySpec != null) { 910 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 911 out.attribute(null, ATTR_VALUE, globalProxySpec); 912 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 913 } 914 if (globalProxyExclusionList != null) { 915 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 916 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 917 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 918 } 919 } 920 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 921 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 922 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 923 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 924 } 925 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 926 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 927 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 928 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 929 } 930 if (encryptionRequested) { 931 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 932 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 933 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 934 } 935 if (testOnlyAdmin) { 936 out.startTag(null, TAG_TEST_ONLY_ADMIN); 937 out.attribute(null, ATTR_VALUE, Boolean.toString(testOnlyAdmin)); 938 out.endTag(null, TAG_TEST_ONLY_ADMIN); 939 } 940 if (disableCamera) { 941 out.startTag(null, TAG_DISABLE_CAMERA); 942 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 943 out.endTag(null, TAG_DISABLE_CAMERA); 944 } 945 if (disableCallerId) { 946 out.startTag(null, TAG_DISABLE_CALLER_ID); 947 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 948 out.endTag(null, TAG_DISABLE_CALLER_ID); 949 } 950 if (disableContactsSearch) { 951 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 952 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 953 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 954 } 955 if (!disableBluetoothContactSharing) { 956 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 957 out.attribute(null, ATTR_VALUE, 958 Boolean.toString(disableBluetoothContactSharing)); 959 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 960 } 961 if (disableScreenCapture) { 962 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 963 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 964 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 965 } 966 if (requireAutoTime) { 967 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 968 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 969 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 970 } 971 if (forceEphemeralUsers) { 972 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 973 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 974 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 975 } 976 if (isNetworkLoggingEnabled) { 977 out.startTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 978 out.attribute(null, ATTR_VALUE, Boolean.toString(isNetworkLoggingEnabled)); 979 out.attribute(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS, 980 Integer.toString(numNetworkLoggingNotifications)); 981 out.attribute(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION, 982 Long.toString(lastNetworkLoggingNotificationTimeMs)); 983 out.endTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 984 } 985 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 986 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 987 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 988 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 989 } 990 if (!accountTypesWithManagementDisabled.isEmpty()) { 991 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 992 writeAttributeValuesToXml( 993 out, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 994 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 995 } 996 if (!trustAgentInfos.isEmpty()) { 997 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 998 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 999 for (Entry<String, TrustAgentInfo> entry : set) { 1000 TrustAgentInfo trustAgentInfo = entry.getValue(); 1001 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 1002 out.attribute(null, ATTR_VALUE, entry.getKey()); 1003 if (trustAgentInfo.options != null) { 1004 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1005 try { 1006 trustAgentInfo.options.saveToXml(out); 1007 } catch (XmlPullParserException e) { 1008 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 1009 } 1010 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1011 } 1012 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 1013 } 1014 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1015 } 1016 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 1017 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1018 writeAttributeValuesToXml(out, TAG_PROVIDER, crossProfileWidgetProviders); 1019 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1020 } 1021 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 1022 permittedAccessiblityServices); 1023 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 1024 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 1025 if (hasUserRestrictions()) { 1026 UserRestrictionsUtils.writeRestrictions( 1027 out, userRestrictions, TAG_USER_RESTRICTIONS); 1028 } 1029 if (!defaultEnabledRestrictionsAlreadySet.isEmpty()) { 1030 out.startTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1031 writeAttributeValuesToXml( 1032 out, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1033 out.endTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1034 } 1035 if (!TextUtils.isEmpty(shortSupportMessage)) { 1036 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1037 out.text(shortSupportMessage.toString()); 1038 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1039 } 1040 if (!TextUtils.isEmpty(longSupportMessage)) { 1041 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 1042 out.text(longSupportMessage.toString()); 1043 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 1044 } 1045 if (parentAdmin != null) { 1046 out.startTag(null, TAG_PARENT_ADMIN); 1047 parentAdmin.writeToXml(out); 1048 out.endTag(null, TAG_PARENT_ADMIN); 1049 } 1050 if (organizationColor != DEF_ORGANIZATION_COLOR) { 1051 out.startTag(null, TAG_ORGANIZATION_COLOR); 1052 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 1053 out.endTag(null, TAG_ORGANIZATION_COLOR); 1054 } 1055 if (organizationName != null) { 1056 out.startTag(null, TAG_ORGANIZATION_NAME); 1057 out.text(organizationName); 1058 out.endTag(null, TAG_ORGANIZATION_NAME); 1059 } 1060 } 1061 1062 void writePackageListToXml(XmlSerializer out, String outerTag, 1063 List<String> packageList) 1064 throws IllegalArgumentException, IllegalStateException, IOException { 1065 if (packageList == null) { 1066 return; 1067 } 1068 1069 out.startTag(null, outerTag); 1070 writeAttributeValuesToXml(out, TAG_PACKAGE_LIST_ITEM, packageList); 1071 out.endTag(null, outerTag); 1072 } 1073 1074 void writeAttributeValuesToXml(XmlSerializer out, String tag, 1075 @NonNull Collection<String> values) throws IOException { 1076 for (String value : values) { 1077 out.startTag(null, tag); 1078 out.attribute(null, ATTR_VALUE, value); 1079 out.endTag(null, tag); 1080 } 1081 } 1082 1083 void readFromXml(XmlPullParser parser) 1084 throws XmlPullParserException, IOException { 1085 int outerDepth = parser.getDepth(); 1086 int type; 1087 while ((type=parser.next()) != END_DOCUMENT 1088 && (type != END_TAG || parser.getDepth() > outerDepth)) { 1089 if (type == END_TAG || type == TEXT) { 1090 continue; 1091 } 1092 String tag = parser.getName(); 1093 if (TAG_POLICIES.equals(tag)) { 1094 info.readPoliciesFromXml(parser); 1095 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 1096 minimumPasswordMetrics.quality = Integer.parseInt( 1097 parser.getAttributeValue(null, ATTR_VALUE)); 1098 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 1099 minimumPasswordMetrics.length = Integer.parseInt( 1100 parser.getAttributeValue(null, ATTR_VALUE)); 1101 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 1102 passwordHistoryLength = Integer.parseInt( 1103 parser.getAttributeValue(null, ATTR_VALUE)); 1104 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 1105 minimumPasswordMetrics.upperCase = Integer.parseInt( 1106 parser.getAttributeValue(null, ATTR_VALUE)); 1107 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 1108 minimumPasswordMetrics.lowerCase = Integer.parseInt( 1109 parser.getAttributeValue(null, ATTR_VALUE)); 1110 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 1111 minimumPasswordMetrics.letters = Integer.parseInt( 1112 parser.getAttributeValue(null, ATTR_VALUE)); 1113 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 1114 minimumPasswordMetrics.numeric = Integer.parseInt( 1115 parser.getAttributeValue(null, ATTR_VALUE)); 1116 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 1117 minimumPasswordMetrics.symbols = Integer.parseInt( 1118 parser.getAttributeValue(null, ATTR_VALUE)); 1119 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 1120 minimumPasswordMetrics.nonLetter = Integer.parseInt( 1121 parser.getAttributeValue(null, ATTR_VALUE)); 1122 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 1123 maximumTimeToUnlock = Long.parseLong( 1124 parser.getAttributeValue(null, ATTR_VALUE)); 1125 } else if (TAG_STRONG_AUTH_UNLOCK_TIMEOUT.equals(tag)) { 1126 strongAuthUnlockTimeout = Long.parseLong( 1127 parser.getAttributeValue(null, ATTR_VALUE)); 1128 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 1129 maximumFailedPasswordsForWipe = Integer.parseInt( 1130 parser.getAttributeValue(null, ATTR_VALUE)); 1131 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 1132 specifiesGlobalProxy = Boolean.parseBoolean( 1133 parser.getAttributeValue(null, ATTR_VALUE)); 1134 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 1135 globalProxySpec = 1136 parser.getAttributeValue(null, ATTR_VALUE); 1137 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 1138 globalProxyExclusionList = 1139 parser.getAttributeValue(null, ATTR_VALUE); 1140 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 1141 passwordExpirationTimeout = Long.parseLong( 1142 parser.getAttributeValue(null, ATTR_VALUE)); 1143 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 1144 passwordExpirationDate = Long.parseLong( 1145 parser.getAttributeValue(null, ATTR_VALUE)); 1146 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 1147 encryptionRequested = Boolean.parseBoolean( 1148 parser.getAttributeValue(null, ATTR_VALUE)); 1149 } else if (TAG_TEST_ONLY_ADMIN.equals(tag)) { 1150 testOnlyAdmin = Boolean.parseBoolean( 1151 parser.getAttributeValue(null, ATTR_VALUE)); 1152 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 1153 disableCamera = Boolean.parseBoolean( 1154 parser.getAttributeValue(null, ATTR_VALUE)); 1155 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 1156 disableCallerId = Boolean.parseBoolean( 1157 parser.getAttributeValue(null, ATTR_VALUE)); 1158 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 1159 disableContactsSearch = Boolean.parseBoolean( 1160 parser.getAttributeValue(null, ATTR_VALUE)); 1161 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 1162 disableBluetoothContactSharing = Boolean.parseBoolean(parser 1163 .getAttributeValue(null, ATTR_VALUE)); 1164 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 1165 disableScreenCapture = Boolean.parseBoolean( 1166 parser.getAttributeValue(null, ATTR_VALUE)); 1167 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 1168 requireAutoTime = Boolean.parseBoolean( 1169 parser.getAttributeValue(null, ATTR_VALUE)); 1170 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 1171 forceEphemeralUsers = Boolean.parseBoolean( 1172 parser.getAttributeValue(null, ATTR_VALUE)); 1173 } else if (TAG_IS_NETWORK_LOGGING_ENABLED.equals(tag)) { 1174 isNetworkLoggingEnabled = Boolean.parseBoolean( 1175 parser.getAttributeValue(null, ATTR_VALUE)); 1176 lastNetworkLoggingNotificationTimeMs = Long.parseLong( 1177 parser.getAttributeValue(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION)); 1178 numNetworkLoggingNotifications = Integer.parseInt( 1179 parser.getAttributeValue(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS)); 1180 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 1181 disabledKeyguardFeatures = Integer.parseInt( 1182 parser.getAttributeValue(null, ATTR_VALUE)); 1183 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 1184 readAttributeValues( 1185 parser, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1186 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 1187 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 1188 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 1189 crossProfileWidgetProviders = new ArrayList<>(); 1190 readAttributeValues(parser, TAG_PROVIDER, crossProfileWidgetProviders); 1191 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 1192 permittedAccessiblityServices = readPackageList(parser, tag); 1193 } else if (TAG_PERMITTED_IMES.equals(tag)) { 1194 permittedInputMethods = readPackageList(parser, tag); 1195 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 1196 keepUninstalledPackages = readPackageList(parser, tag); 1197 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 1198 userRestrictions = UserRestrictionsUtils.readRestrictions(parser); 1199 } else if (TAG_DEFAULT_ENABLED_USER_RESTRICTIONS.equals(tag)) { 1200 readAttributeValues( 1201 parser, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1202 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 1203 type = parser.next(); 1204 if (type == XmlPullParser.TEXT) { 1205 shortSupportMessage = parser.getText(); 1206 } else { 1207 Log.w(LOG_TAG, "Missing text when loading short support message"); 1208 } 1209 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 1210 type = parser.next(); 1211 if (type == XmlPullParser.TEXT) { 1212 longSupportMessage = parser.getText(); 1213 } else { 1214 Log.w(LOG_TAG, "Missing text when loading long support message"); 1215 } 1216 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1217 Preconditions.checkState(!isParent); 1218 1219 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1220 parentAdmin.readFromXml(parser); 1221 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1222 organizationColor = Integer.parseInt( 1223 parser.getAttributeValue(null, ATTR_VALUE)); 1224 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1225 type = parser.next(); 1226 if (type == XmlPullParser.TEXT) { 1227 organizationName = parser.getText(); 1228 } else { 1229 Log.w(LOG_TAG, "Missing text when loading organization name"); 1230 } 1231 } else { 1232 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1233 XmlUtils.skipCurrentTag(parser); 1234 } 1235 } 1236 } 1237 1238 private List<String> readPackageList(XmlPullParser parser, 1239 String tag) throws XmlPullParserException, IOException { 1240 List<String> result = new ArrayList<String>(); 1241 int outerDepth = parser.getDepth(); 1242 int outerType; 1243 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1244 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1245 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1246 continue; 1247 } 1248 String outerTag = parser.getName(); 1249 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1250 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1251 if (packageName != null) { 1252 result.add(packageName); 1253 } else { 1254 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1255 } 1256 } else { 1257 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1258 } 1259 } 1260 return result; 1261 } 1262 1263 private void readAttributeValues( 1264 XmlPullParser parser, String tag, Collection<String> result) 1265 throws XmlPullParserException, IOException { 1266 result.clear(); 1267 int outerDepthDAM = parser.getDepth(); 1268 int typeDAM; 1269 while ((typeDAM=parser.next()) != END_DOCUMENT 1270 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1271 if (typeDAM == END_TAG || typeDAM == TEXT) { 1272 continue; 1273 } 1274 String tagDAM = parser.getName(); 1275 if (tag.equals(tagDAM)) { 1276 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1277 } else { 1278 Slog.e(LOG_TAG, "Expected tag " + tag + " but found " + tagDAM); 1279 } 1280 } 1281 } 1282 1283 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1284 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1285 int outerDepthDAM = parser.getDepth(); 1286 int typeDAM; 1287 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1288 while ((typeDAM=parser.next()) != END_DOCUMENT 1289 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1290 if (typeDAM == END_TAG || typeDAM == TEXT) { 1291 continue; 1292 } 1293 String tagDAM = parser.getName(); 1294 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1295 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1296 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1297 result.put(component, trustAgentInfo); 1298 } else { 1299 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1300 } 1301 } 1302 return result; 1303 } 1304 1305 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1306 throws XmlPullParserException, IOException { 1307 int outerDepthDAM = parser.getDepth(); 1308 int typeDAM; 1309 TrustAgentInfo result = new TrustAgentInfo(null); 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_OPTIONS.equals(tagDAM)) { 1317 result.options = PersistableBundle.restoreFromXml(parser); 1318 } else { 1319 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1320 } 1321 } 1322 return result; 1323 } 1324 1325 boolean hasUserRestrictions() { 1326 return userRestrictions != null && userRestrictions.size() > 0; 1327 } 1328 1329 Bundle ensureUserRestrictions() { 1330 if (userRestrictions == null) { 1331 userRestrictions = new Bundle(); 1332 } 1333 return userRestrictions; 1334 } 1335 1336 void dump(String prefix, PrintWriter pw) { 1337 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1338 pw.print(prefix); pw.print("testOnlyAdmin="); 1339 pw.println(testOnlyAdmin); 1340 pw.print(prefix); pw.println("policies:"); 1341 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1342 if (pols != null) { 1343 for (int i=0; i<pols.size(); i++) { 1344 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1345 } 1346 } 1347 pw.print(prefix); pw.print("passwordQuality=0x"); 1348 pw.println(Integer.toHexString(minimumPasswordMetrics.quality)); 1349 pw.print(prefix); pw.print("minimumPasswordLength="); 1350 pw.println(minimumPasswordMetrics.length); 1351 pw.print(prefix); pw.print("passwordHistoryLength="); 1352 pw.println(passwordHistoryLength); 1353 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1354 pw.println(minimumPasswordMetrics.upperCase); 1355 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1356 pw.println(minimumPasswordMetrics.lowerCase); 1357 pw.print(prefix); pw.print("minimumPasswordLetters="); 1358 pw.println(minimumPasswordMetrics.letters); 1359 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1360 pw.println(minimumPasswordMetrics.numeric); 1361 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1362 pw.println(minimumPasswordMetrics.symbols); 1363 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1364 pw.println(minimumPasswordMetrics.nonLetter); 1365 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1366 pw.println(maximumTimeToUnlock); 1367 pw.print(prefix); pw.print("strongAuthUnlockTimeout="); 1368 pw.println(strongAuthUnlockTimeout); 1369 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1370 pw.println(maximumFailedPasswordsForWipe); 1371 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1372 pw.println(specifiesGlobalProxy); 1373 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1374 pw.println(passwordExpirationTimeout); 1375 pw.print(prefix); pw.print("passwordExpirationDate="); 1376 pw.println(passwordExpirationDate); 1377 if (globalProxySpec != null) { 1378 pw.print(prefix); pw.print("globalProxySpec="); 1379 pw.println(globalProxySpec); 1380 } 1381 if (globalProxyExclusionList != null) { 1382 pw.print(prefix); pw.print("globalProxyEclusionList="); 1383 pw.println(globalProxyExclusionList); 1384 } 1385 pw.print(prefix); pw.print("encryptionRequested="); 1386 pw.println(encryptionRequested); 1387 pw.print(prefix); pw.print("disableCamera="); 1388 pw.println(disableCamera); 1389 pw.print(prefix); pw.print("disableCallerId="); 1390 pw.println(disableCallerId); 1391 pw.print(prefix); pw.print("disableContactsSearch="); 1392 pw.println(disableContactsSearch); 1393 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1394 pw.println(disableBluetoothContactSharing); 1395 pw.print(prefix); pw.print("disableScreenCapture="); 1396 pw.println(disableScreenCapture); 1397 pw.print(prefix); pw.print("requireAutoTime="); 1398 pw.println(requireAutoTime); 1399 pw.print(prefix); pw.print("forceEphemeralUsers="); 1400 pw.println(forceEphemeralUsers); 1401 pw.print(prefix); pw.print("isNetworkLoggingEnabled="); 1402 pw.println(isNetworkLoggingEnabled); 1403 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1404 pw.println(disabledKeyguardFeatures); 1405 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1406 pw.println(crossProfileWidgetProviders); 1407 if (permittedAccessiblityServices != null) { 1408 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1409 pw.println(permittedAccessiblityServices); 1410 } 1411 if (permittedInputMethods != null) { 1412 pw.print(prefix); pw.print("permittedInputMethods="); 1413 pw.println(permittedInputMethods); 1414 } 1415 if (keepUninstalledPackages != null) { 1416 pw.print(prefix); pw.print("keepUninstalledPackages="); 1417 pw.println(keepUninstalledPackages); 1418 } 1419 pw.print(prefix); pw.print("organizationColor="); 1420 pw.println(organizationColor); 1421 if (organizationName != null) { 1422 pw.print(prefix); pw.print("organizationName="); 1423 pw.println(organizationName); 1424 } 1425 pw.print(prefix); pw.println("userRestrictions:"); 1426 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1427 pw.print(prefix); pw.print("defaultEnabledRestrictionsAlreadySet="); 1428 pw.println(defaultEnabledRestrictionsAlreadySet); 1429 pw.print(prefix); pw.print("isParent="); 1430 pw.println(isParent); 1431 if (parentAdmin != null) { 1432 pw.print(prefix); pw.println("parentAdmin:"); 1433 parentAdmin.dump(prefix + " ", pw); 1434 } 1435 } 1436 } 1437 1438 private void handlePackagesChanged(String packageName, int userHandle) { 1439 boolean removedAdmin = false; 1440 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1441 DevicePolicyData policy = getUserData(userHandle); 1442 synchronized (this) { 1443 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1444 ActiveAdmin aa = policy.mAdminList.get(i); 1445 try { 1446 // If we're checking all packages or if the specific one we're checking matches, 1447 // then check if the package and receiver still exist. 1448 final String adminPackage = aa.info.getPackageName(); 1449 if (packageName == null || packageName.equals(adminPackage)) { 1450 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1451 || mIPackageManager.getReceiverInfo(aa.info.getComponent(), 1452 PackageManager.MATCH_DIRECT_BOOT_AWARE 1453 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 1454 userHandle) == null) { 1455 removedAdmin = true; 1456 policy.mAdminList.remove(i); 1457 policy.mAdminMap.remove(aa.info.getComponent()); 1458 } 1459 } 1460 } catch (RemoteException re) { 1461 // Shouldn't happen. 1462 } 1463 } 1464 if (removedAdmin) { 1465 validatePasswordOwnerLocked(policy); 1466 } 1467 1468 boolean removedDelegate = false; 1469 1470 // Check if a delegate was removed. 1471 for (int i = policy.mDelegationMap.size() - 1; i >= 0; i--) { 1472 final String delegatePackage = policy.mDelegationMap.keyAt(i); 1473 if (isRemovedPackage(packageName, delegatePackage, userHandle)) { 1474 policy.mDelegationMap.removeAt(i); 1475 removedDelegate = true; 1476 } 1477 } 1478 1479 // Persist updates if the removed package was an admin or delegate. 1480 if (removedAdmin || removedDelegate) { 1481 saveSettingsLocked(policy.mUserHandle); 1482 } 1483 } 1484 if (removedAdmin) { 1485 // The removed admin might have disabled camera, so update user restrictions. 1486 pushUserRestrictions(userHandle); 1487 } 1488 } 1489 1490 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1491 try { 1492 return targetPackage != null 1493 && (changedPackage == null || changedPackage.equals(targetPackage)) 1494 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1495 } catch (RemoteException e) { 1496 // Shouldn't happen 1497 } 1498 1499 return false; 1500 } 1501 1502 /** 1503 * Unit test will subclass it to inject mocks. 1504 */ 1505 @VisibleForTesting 1506 static class Injector { 1507 1508 private final Context mContext; 1509 1510 Injector(Context context) { 1511 mContext = context; 1512 } 1513 1514 Context createContextAsUser(UserHandle user) throws PackageManager.NameNotFoundException { 1515 final String packageName = mContext.getPackageName(); 1516 return mContext.createPackageContextAsUser(packageName, 0, user); 1517 } 1518 1519 Resources getResources() { 1520 return mContext.getResources(); 1521 } 1522 1523 Owners newOwners() { 1524 return new Owners(getUserManager(), getUserManagerInternal(), 1525 getPackageManagerInternal()); 1526 } 1527 1528 UserManager getUserManager() { 1529 return UserManager.get(mContext); 1530 } 1531 1532 UserManagerInternal getUserManagerInternal() { 1533 return LocalServices.getService(UserManagerInternal.class); 1534 } 1535 1536 PackageManagerInternal getPackageManagerInternal() { 1537 return LocalServices.getService(PackageManagerInternal.class); 1538 } 1539 1540 NotificationManager getNotificationManager() { 1541 return mContext.getSystemService(NotificationManager.class); 1542 } 1543 1544 IIpConnectivityMetrics getIIpConnectivityMetrics() { 1545 return (IIpConnectivityMetrics) IIpConnectivityMetrics.Stub.asInterface( 1546 ServiceManager.getService(IpConnectivityLog.SERVICE_NAME)); 1547 } 1548 1549 PackageManager getPackageManager() { 1550 return mContext.getPackageManager(); 1551 } 1552 1553 PowerManagerInternal getPowerManagerInternal() { 1554 return LocalServices.getService(PowerManagerInternal.class); 1555 } 1556 1557 TelephonyManager getTelephonyManager() { 1558 return TelephonyManager.from(mContext); 1559 } 1560 1561 TrustManager getTrustManager() { 1562 return (TrustManager) mContext.getSystemService(Context.TRUST_SERVICE); 1563 } 1564 1565 AlarmManager getAlarmManager() { 1566 return (AlarmManager) mContext.getSystemService(AlarmManager.class); 1567 } 1568 1569 IWindowManager getIWindowManager() { 1570 return IWindowManager.Stub 1571 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1572 } 1573 1574 IActivityManager getIActivityManager() { 1575 return ActivityManager.getService(); 1576 } 1577 1578 IPackageManager getIPackageManager() { 1579 return AppGlobals.getPackageManager(); 1580 } 1581 1582 IBackupManager getIBackupManager() { 1583 return IBackupManager.Stub.asInterface( 1584 ServiceManager.getService(Context.BACKUP_SERVICE)); 1585 } 1586 1587 IAudioService getIAudioService() { 1588 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1589 } 1590 1591 boolean isBuildDebuggable() { 1592 return Build.IS_DEBUGGABLE; 1593 } 1594 1595 LockPatternUtils newLockPatternUtils() { 1596 return new LockPatternUtils(mContext); 1597 } 1598 1599 boolean storageManagerIsFileBasedEncryptionEnabled() { 1600 return StorageManager.isFileEncryptedNativeOnly(); 1601 } 1602 1603 boolean storageManagerIsNonDefaultBlockEncrypted() { 1604 long identity = Binder.clearCallingIdentity(); 1605 try { 1606 return StorageManager.isNonDefaultBlockEncrypted(); 1607 } finally { 1608 Binder.restoreCallingIdentity(identity); 1609 } 1610 } 1611 1612 boolean storageManagerIsEncrypted() { 1613 return StorageManager.isEncrypted(); 1614 } 1615 1616 boolean storageManagerIsEncryptable() { 1617 return StorageManager.isEncryptable(); 1618 } 1619 1620 Looper getMyLooper() { 1621 return Looper.myLooper(); 1622 } 1623 1624 WifiManager getWifiManager() { 1625 return mContext.getSystemService(WifiManager.class); 1626 } 1627 1628 long binderClearCallingIdentity() { 1629 return Binder.clearCallingIdentity(); 1630 } 1631 1632 void binderRestoreCallingIdentity(long token) { 1633 Binder.restoreCallingIdentity(token); 1634 } 1635 1636 int binderGetCallingUid() { 1637 return Binder.getCallingUid(); 1638 } 1639 1640 int binderGetCallingPid() { 1641 return Binder.getCallingPid(); 1642 } 1643 1644 UserHandle binderGetCallingUserHandle() { 1645 return Binder.getCallingUserHandle(); 1646 } 1647 1648 boolean binderIsCallingUidMyUid() { 1649 return getCallingUid() == Process.myUid(); 1650 } 1651 1652 final int userHandleGetCallingUserId() { 1653 return UserHandle.getUserId(binderGetCallingUid()); 1654 } 1655 1656 File environmentGetUserSystemDirectory(int userId) { 1657 return Environment.getUserSystemDirectory(userId); 1658 } 1659 1660 void powerManagerGoToSleep(long time, int reason, int flags) { 1661 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1662 } 1663 1664 void powerManagerReboot(String reason) { 1665 mContext.getSystemService(PowerManager.class).reboot(reason); 1666 } 1667 1668 void recoverySystemRebootWipeUserData(boolean shutdown, String reason, boolean force) 1669 throws IOException { 1670 RecoverySystem.rebootWipeUserData(mContext, shutdown, reason, force); 1671 } 1672 1673 boolean systemPropertiesGetBoolean(String key, boolean def) { 1674 return SystemProperties.getBoolean(key, def); 1675 } 1676 1677 long systemPropertiesGetLong(String key, long def) { 1678 return SystemProperties.getLong(key, def); 1679 } 1680 1681 String systemPropertiesGet(String key, String def) { 1682 return SystemProperties.get(key, def); 1683 } 1684 1685 String systemPropertiesGet(String key) { 1686 return SystemProperties.get(key); 1687 } 1688 1689 void systemPropertiesSet(String key, String value) { 1690 SystemProperties.set(key, value); 1691 } 1692 1693 boolean userManagerIsSplitSystemUser() { 1694 return UserManager.isSplitSystemUser(); 1695 } 1696 1697 String getDevicePolicyFilePathForSystemUser() { 1698 return "/data/system/"; 1699 } 1700 1701 void registerContentObserver(Uri uri, boolean notifyForDescendents, 1702 ContentObserver observer, int userHandle) { 1703 mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents, 1704 observer, userHandle); 1705 } 1706 1707 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1708 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1709 name, def, userHandle); 1710 } 1711 1712 String settingsSecureGetStringForUser(String name, int userHandle) { 1713 return Settings.Secure.getStringForUser(mContext.getContentResolver(), name, 1714 userHandle); 1715 } 1716 1717 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1718 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1719 name, value, userHandle); 1720 } 1721 1722 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1723 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1724 name, value, userHandle); 1725 } 1726 1727 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1728 Settings.Global.putStringForUser(mContext.getContentResolver(), 1729 name, value, userHandle); 1730 } 1731 1732 void settingsSecurePutInt(String name, int value) { 1733 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1734 } 1735 1736 int settingsGlobalGetInt(String name, int def) { 1737 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1738 } 1739 1740 void settingsGlobalPutInt(String name, int value) { 1741 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1742 } 1743 1744 void settingsSecurePutString(String name, String value) { 1745 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1746 } 1747 1748 void settingsGlobalPutString(String name, String value) { 1749 Settings.Global.putString(mContext.getContentResolver(), name, value); 1750 } 1751 1752 void securityLogSetLoggingEnabledProperty(boolean enabled) { 1753 SecurityLog.setLoggingEnabledProperty(enabled); 1754 } 1755 1756 boolean securityLogGetLoggingEnabledProperty() { 1757 return SecurityLog.getLoggingEnabledProperty(); 1758 } 1759 1760 boolean securityLogIsLoggingEnabled() { 1761 return SecurityLog.isLoggingEnabled(); 1762 } 1763 1764 KeyChainConnection keyChainBindAsUser(UserHandle user) throws InterruptedException { 1765 return KeyChain.bindAsUser(mContext, user); 1766 } 1767 } 1768 1769 /** 1770 * Instantiates the service. 1771 */ 1772 public DevicePolicyManagerService(Context context) { 1773 this(new Injector(context)); 1774 } 1775 1776 @VisibleForTesting 1777 DevicePolicyManagerService(Injector injector) { 1778 mInjector = injector; 1779 mContext = Preconditions.checkNotNull(injector.mContext); 1780 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1781 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1782 1783 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1784 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1785 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1786 mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager()); 1787 1788 mLocalService = new LocalService(); 1789 mLockPatternUtils = injector.newLockPatternUtils(); 1790 1791 mSecurityLogMonitor = new SecurityLogMonitor(this); 1792 1793 mHasFeature = mInjector.getPackageManager() 1794 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1795 mIsWatch = mInjector.getPackageManager() 1796 .hasSystemFeature(PackageManager.FEATURE_WATCH); 1797 1798 // Broadcast filter for changes to the trusted certificate store. These changes get a 1799 // separate intent filter so we can listen to them even when device_admin is off. 1800 IntentFilter filter = new IntentFilter(); 1801 filter.addAction(Intent.ACTION_USER_STARTED); 1802 filter.addAction(Intent.ACTION_USER_UNLOCKED); 1803 filter.addAction(KeyChain.ACTION_TRUST_STORE_CHANGED); 1804 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1805 mContext.registerReceiverAsUser(mRootCaReceiver, UserHandle.ALL, filter, null, mHandler); 1806 1807 if (!mHasFeature) { 1808 // Skip the rest of the initialization 1809 return; 1810 } 1811 1812 filter = new IntentFilter(); 1813 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1814 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1815 filter.addAction(Intent.ACTION_USER_ADDED); 1816 filter.addAction(Intent.ACTION_USER_REMOVED); 1817 filter.addAction(Intent.ACTION_USER_STARTED); 1818 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1819 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1820 filter = new IntentFilter(); 1821 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1822 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1823 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1824 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1825 filter.addDataScheme("package"); 1826 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1827 filter = new IntentFilter(); 1828 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1829 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1830 1831 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1832 1833 mSetupContentObserver = new SetupContentObserver(mHandler); 1834 } 1835 1836 /** 1837 * Creates and loads the policy data from xml. 1838 * @param userHandle the user for whom to load the policy data 1839 * @return 1840 */ 1841 @NonNull 1842 DevicePolicyData getUserData(int userHandle) { 1843 synchronized (this) { 1844 DevicePolicyData policy = mUserData.get(userHandle); 1845 if (policy == null) { 1846 policy = new DevicePolicyData(userHandle); 1847 mUserData.append(userHandle, policy); 1848 loadSettingsLocked(policy, userHandle); 1849 } 1850 return policy; 1851 } 1852 } 1853 1854 /** 1855 * Creates and loads the policy data from xml for data that is shared between 1856 * various profiles of a user. In contrast to {@link #getUserData(int)} 1857 * it allows access to data of users other than the calling user. 1858 * 1859 * This function should only be used for shared data, e.g. everything regarding 1860 * passwords and should be removed once multiple screen locks are present. 1861 * @param userHandle the user for whom to load the policy data 1862 * @return 1863 */ 1864 DevicePolicyData getUserDataUnchecked(int userHandle) { 1865 long ident = mInjector.binderClearCallingIdentity(); 1866 try { 1867 return getUserData(userHandle); 1868 } finally { 1869 mInjector.binderRestoreCallingIdentity(ident); 1870 } 1871 } 1872 1873 void removeUserData(int userHandle) { 1874 synchronized (this) { 1875 if (userHandle == UserHandle.USER_SYSTEM) { 1876 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1877 return; 1878 } 1879 mOwners.removeProfileOwner(userHandle); 1880 mOwners.writeProfileOwner(userHandle); 1881 1882 DevicePolicyData policy = mUserData.get(userHandle); 1883 if (policy != null) { 1884 mUserData.remove(userHandle); 1885 } 1886 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1887 DEVICE_POLICIES_XML); 1888 policyFile.delete(); 1889 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1890 } 1891 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1892 } 1893 1894 void loadOwners() { 1895 synchronized (this) { 1896 mOwners.load(); 1897 setDeviceOwnerSystemPropertyLocked(); 1898 findOwnerComponentIfNecessaryLocked(); 1899 migrateUserRestrictionsIfNecessaryLocked(); 1900 setDefaultEnabledUserRestrictionsIfNecessaryLocked(); 1901 1902 // TODO PO may not have a class name either due to b/17652534. Address that too. 1903 1904 updateDeviceOwnerLocked(); 1905 } 1906 } 1907 1908 private void setDefaultEnabledUserRestrictionsIfNecessaryLocked() { 1909 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 1910 if (deviceOwner != null 1911 && !UserRestrictionsUtils.getDefaultEnabledForDeviceOwner().equals( 1912 deviceOwner.defaultEnabledRestrictionsAlreadySet)) { 1913 Slog.i(LOG_TAG,"New user restrictions need to be set by default for the device owner"); 1914 1915 if (VERBOSE_LOG) { 1916 Slog.d(LOG_TAG,"Default enabled restrictions for DO: " 1917 + UserRestrictionsUtils.getDefaultEnabledForDeviceOwner() 1918 + ". Restrictions already enabled: " 1919 + deviceOwner.defaultEnabledRestrictionsAlreadySet); 1920 } 1921 1922 Set<String> restrictionsToSet = new ArraySet<>( 1923 UserRestrictionsUtils.getDefaultEnabledForDeviceOwner()); 1924 restrictionsToSet.removeAll(deviceOwner.defaultEnabledRestrictionsAlreadySet); 1925 if (!restrictionsToSet.isEmpty()) { 1926 for (String restriction : restrictionsToSet) { 1927 deviceOwner.ensureUserRestrictions().putBoolean(restriction, true); 1928 } 1929 deviceOwner.defaultEnabledRestrictionsAlreadySet.addAll(restrictionsToSet); 1930 Slog.i(LOG_TAG, 1931 "Enabled the following restrictions by default: " + restrictionsToSet); 1932 1933 saveUserRestrictionsLocked(mOwners.getDeviceOwnerUserId()); 1934 } 1935 } 1936 } 1937 1938 private void setDeviceOwnerSystemPropertyLocked() { 1939 final boolean deviceProvisioned = 1940 mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0; 1941 // If the device is not provisioned and there is currently no device owner, do not set the 1942 // read-only system property yet, since Device owner may still be provisioned. For Wear 1943 // devices, if there is already a device owner then it's OK to set the property to true now, 1944 // regardless the provision state. 1945 final boolean isWatchWithDeviceOwner = mIsWatch && mOwners.hasDeviceOwner(); 1946 if (!isWatchWithDeviceOwner && !deviceProvisioned) { 1947 return; 1948 } 1949 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 1950 // always false at this point. 1951 if (StorageManager.inCryptKeeperBounce()) { 1952 return; 1953 } 1954 1955 if (!TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT))) { 1956 Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 1957 } else { 1958 if (mOwners.hasDeviceOwner()) { 1959 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "true"); 1960 Slog.i(LOG_TAG, "Set ro.device_owner property to true"); 1961 1962 if (mInjector.securityLogGetLoggingEnabledProperty()) { 1963 mSecurityLogMonitor.start(); 1964 maybePauseDeviceWideLoggingLocked(); 1965 } 1966 } else { 1967 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "false"); 1968 Slog.i(LOG_TAG, "Set ro.device_owner property to false"); 1969 } 1970 } 1971 } 1972 1973 private void findOwnerComponentIfNecessaryLocked() { 1974 if (!mOwners.hasDeviceOwner()) { 1975 return; 1976 } 1977 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1978 1979 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1980 return; // Already a full component name. 1981 } 1982 1983 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1984 doComponentName.getPackageName(), 1985 mOwners.getDeviceOwnerUserId()); 1986 if (doComponent == null) { 1987 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1988 } else { 1989 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1990 doComponent, 1991 mOwners.getDeviceOwnerName(), 1992 mOwners.getDeviceOwnerUserId(), 1993 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1994 mOwners.writeDeviceOwner(); 1995 if (VERBOSE_LOG) { 1996 Log.v(LOG_TAG, "Device owner component filled in"); 1997 } 1998 } 1999 } 2000 2001 /** 2002 * We didn't use to persist user restrictions for each owners but only persisted in user 2003 * manager. 2004 */ 2005 private void migrateUserRestrictionsIfNecessaryLocked() { 2006 boolean migrated = false; 2007 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 2008 // except for the "system controlled" ones. 2009 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 2010 if (VERBOSE_LOG) { 2011 Log.v(LOG_TAG, "Migrating DO user restrictions"); 2012 } 2013 migrated = true; 2014 2015 // Migrate user 0 restrictions to DO. 2016 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 2017 2018 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 2019 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 2020 2021 // Push DO user restrictions to user manager. 2022 pushUserRestrictions(UserHandle.USER_SYSTEM); 2023 2024 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 2025 } 2026 2027 // Migrate for POs. 2028 2029 // The following restrictions can be set on secondary users by the device owner, so we 2030 // assume they're not from the PO. 2031 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 2032 UserManager.DISALLOW_OUTGOING_CALLS, 2033 UserManager.DISALLOW_SMS); 2034 2035 for (UserInfo ui : mUserManager.getUsers()) { 2036 final int userId = ui.id; 2037 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 2038 if (VERBOSE_LOG) { 2039 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 2040 } 2041 migrated = true; 2042 2043 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 2044 2045 final Set<String> exceptionList = 2046 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 2047 2048 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 2049 exceptionList, /* isDeviceOwner =*/ false); 2050 2051 // Note if a secondary user has no PO but has a DA that disables camera, we 2052 // don't get here and won't push the camera user restriction to UserManager 2053 // here. That's okay because we'll push user restrictions anyway when a user 2054 // starts. But we still do it because we want to let user manager persist 2055 // upon migration. 2056 pushUserRestrictions(userId); 2057 2058 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 2059 } 2060 } 2061 if (VERBOSE_LOG && migrated) { 2062 Log.v(LOG_TAG, "User restrictions migrated."); 2063 } 2064 } 2065 2066 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 2067 Set<String> exceptionList, boolean isDeviceOwner) { 2068 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 2069 user.getIdentifier()); 2070 2071 final Bundle newBaseRestrictions = new Bundle(); 2072 final Bundle newOwnerRestrictions = new Bundle(); 2073 2074 for (String key : origRestrictions.keySet()) { 2075 if (!origRestrictions.getBoolean(key)) { 2076 continue; 2077 } 2078 final boolean canOwnerChange = isDeviceOwner 2079 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 2080 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 2081 2082 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 2083 newBaseRestrictions.putBoolean(key, true); 2084 } else { 2085 newOwnerRestrictions.putBoolean(key, true); 2086 } 2087 } 2088 2089 if (VERBOSE_LOG) { 2090 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 2091 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 2092 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 2093 } 2094 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 2095 newBaseRestrictions); 2096 2097 if (admin != null) { 2098 admin.ensureUserRestrictions().clear(); 2099 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 2100 } else { 2101 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 2102 } 2103 saveSettingsLocked(user.getIdentifier()); 2104 } 2105 2106 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 2107 final DevicePolicyData policy = getUserData(userId); 2108 final int n = policy.mAdminList.size(); 2109 ComponentName found = null; 2110 int nFound = 0; 2111 for (int i = 0; i < n; i++) { 2112 final ActiveAdmin admin = policy.mAdminList.get(i); 2113 if (packageName.equals(admin.info.getPackageName())) { 2114 // Found! 2115 if (nFound == 0) { 2116 found = admin.info.getComponent(); 2117 } 2118 nFound++; 2119 } 2120 } 2121 if (nFound > 1) { 2122 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 2123 } 2124 return found; 2125 } 2126 2127 /** 2128 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 2129 * reminders. Clears alarm if no expirations are configured. 2130 */ 2131 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 2132 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 2133 final long now = System.currentTimeMillis(); 2134 final long timeToExpire = expiration - now; 2135 final long alarmTime; 2136 if (expiration == 0) { 2137 // No expirations are currently configured: Cancel alarm. 2138 alarmTime = 0; 2139 } else if (timeToExpire <= 0) { 2140 // The password has already expired: Repeat every 24 hours. 2141 alarmTime = now + MS_PER_DAY; 2142 } else { 2143 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 2144 // the expiration time. 2145 long alarmInterval = timeToExpire % MS_PER_DAY; 2146 if (alarmInterval == 0) { 2147 alarmInterval = MS_PER_DAY; 2148 } 2149 alarmTime = now + alarmInterval; 2150 } 2151 2152 long token = mInjector.binderClearCallingIdentity(); 2153 try { 2154 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 2155 AlarmManager am = mInjector.getAlarmManager(); 2156 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 2157 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 2158 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 2159 UserHandle.of(affectedUserHandle)); 2160 am.cancel(pi); 2161 if (alarmTime != 0) { 2162 am.set(AlarmManager.RTC, alarmTime, pi); 2163 } 2164 } finally { 2165 mInjector.binderRestoreCallingIdentity(token); 2166 } 2167 } 2168 2169 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 2170 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 2171 if (admin != null 2172 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 2173 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 2174 return admin; 2175 } 2176 return null; 2177 } 2178 2179 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 2180 if (parent) { 2181 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 2182 } 2183 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2184 if (admin != null && parent) { 2185 admin = admin.getParentActiveAdmin(); 2186 } 2187 return admin; 2188 } 2189 2190 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 2191 throws SecurityException { 2192 final int callingUid = mInjector.binderGetCallingUid(); 2193 2194 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 2195 if (result != null) { 2196 return result; 2197 } 2198 2199 if (who != null) { 2200 final int userId = UserHandle.getUserId(callingUid); 2201 final DevicePolicyData policy = getUserData(userId); 2202 ActiveAdmin admin = policy.mAdminMap.get(who); 2203 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2204 throw new SecurityException("Admin " + admin.info.getComponent() 2205 + " does not own the device"); 2206 } 2207 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2208 throw new SecurityException("Admin " + admin.info.getComponent() 2209 + " does not own the profile"); 2210 } 2211 throw new SecurityException("Admin " + admin.info.getComponent() 2212 + " did not specify uses-policy for: " 2213 + admin.info.getTagForPolicy(reqPolicy)); 2214 } else { 2215 throw new SecurityException("No active admin owned by uid " 2216 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 2217 } 2218 } 2219 2220 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 2221 throws SecurityException { 2222 if (parent) { 2223 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 2224 "call APIs on the parent profile"); 2225 } 2226 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 2227 return parent ? admin.getParentActiveAdmin() : admin; 2228 } 2229 /** 2230 * Find the admin for the component and userId bit of the uid, then check 2231 * the admin's uid matches the uid. 2232 */ 2233 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 2234 final int userId = UserHandle.getUserId(uid); 2235 final DevicePolicyData policy = getUserData(userId); 2236 ActiveAdmin admin = policy.mAdminMap.get(who); 2237 if (admin == null) { 2238 throw new SecurityException("No active admin " + who); 2239 } 2240 if (admin.getUid() != uid) { 2241 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2242 } 2243 return admin; 2244 } 2245 2246 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 2247 int uid) { 2248 // Try to find an admin which can use reqPolicy 2249 final int userId = UserHandle.getUserId(uid); 2250 final DevicePolicyData policy = getUserData(userId); 2251 if (who != null) { 2252 ActiveAdmin admin = policy.mAdminMap.get(who); 2253 if (admin == null) { 2254 throw new SecurityException("No active admin " + who); 2255 } 2256 if (admin.getUid() != uid) { 2257 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2258 } 2259 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 2260 return admin; 2261 } 2262 } else { 2263 for (ActiveAdmin admin : policy.mAdminList) { 2264 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 2265 userId)) { 2266 return admin; 2267 } 2268 } 2269 } 2270 2271 return null; 2272 } 2273 2274 @VisibleForTesting 2275 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 2276 int userId) { 2277 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 2278 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 2279 2280 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2281 return ownsDevice; 2282 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2283 // DO always has the PO power. 2284 return ownsDevice || ownsProfile; 2285 } else { 2286 return admin.info.usesPolicy(reqPolicy); 2287 } 2288 } 2289 2290 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 2291 sendAdminCommandLocked(admin, action, null); 2292 } 2293 2294 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 2295 sendAdminCommandLocked(admin, action, null, result); 2296 } 2297 2298 /** 2299 * Send an update to one specific admin, get notified when that admin returns a result. 2300 */ 2301 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2302 BroadcastReceiver result) { 2303 Intent intent = new Intent(action); 2304 intent.setComponent(admin.info.getComponent()); 2305 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 2306 intent.putExtra("expiration", admin.passwordExpirationDate); 2307 } 2308 if (adminExtras != null) { 2309 intent.putExtras(adminExtras); 2310 } 2311 if (result != null) { 2312 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 2313 null, result, mHandler, Activity.RESULT_OK, null, null); 2314 } else { 2315 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 2316 } 2317 } 2318 2319 /** 2320 * Send an update to all admins of a user that enforce a specified policy. 2321 */ 2322 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle, Bundle adminExtras) { 2323 final DevicePolicyData policy = getUserData(userHandle); 2324 final int count = policy.mAdminList.size(); 2325 for (int i = 0; i < count; i++) { 2326 final ActiveAdmin admin = policy.mAdminList.get(i); 2327 if (admin.info.usesPolicy(reqPolicy)) { 2328 sendAdminCommandLocked(admin, action, adminExtras, null); 2329 } 2330 } 2331 } 2332 2333 /** 2334 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2335 * enforce a specified policy. 2336 */ 2337 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2338 int userHandle, Bundle adminExtras) { 2339 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 2340 for (int profileId : profileIds) { 2341 sendAdminCommandLocked(action, reqPolicy, profileId, adminExtras); 2342 } 2343 } 2344 2345 /** 2346 * Sends a broadcast to each profile that share the password unlock with the given user id. 2347 */ 2348 private void sendAdminCommandForLockscreenPoliciesLocked( 2349 String action, int reqPolicy, int userHandle) { 2350 final Bundle extras = new Bundle(); 2351 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 2352 if (isSeparateProfileChallengeEnabled(userHandle)) { 2353 sendAdminCommandLocked(action, reqPolicy, userHandle, extras); 2354 } else { 2355 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle, extras); 2356 } 2357 } 2358 2359 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2360 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2361 DevicePolicyData policy = getUserData(userHandle); 2362 if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) { 2363 policy.mRemovingAdmins.add(adminReceiver); 2364 sendAdminCommandLocked(admin, 2365 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2366 new BroadcastReceiver() { 2367 @Override 2368 public void onReceive(Context context, Intent intent) { 2369 removeAdminArtifacts(adminReceiver, userHandle); 2370 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2371 } 2372 }); 2373 } 2374 } 2375 2376 2377 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2378 boolean throwForMissiongPermission) { 2379 if (!mHasFeature) { 2380 return null; 2381 } 2382 enforceFullCrossUsersPermission(userHandle); 2383 ActivityInfo ai = null; 2384 try { 2385 ai = mIPackageManager.getReceiverInfo(adminName, 2386 PackageManager.GET_META_DATA | 2387 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS | 2388 PackageManager.MATCH_DIRECT_BOOT_AWARE | 2389 PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle); 2390 } catch (RemoteException e) { 2391 // shouldn't happen. 2392 } 2393 if (ai == null) { 2394 throw new IllegalArgumentException("Unknown admin: " + adminName); 2395 } 2396 2397 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2398 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2399 + permission.BIND_DEVICE_ADMIN; 2400 Slog.w(LOG_TAG, message); 2401 if (throwForMissiongPermission && 2402 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2403 throw new IllegalArgumentException(message); 2404 } 2405 } 2406 2407 try { 2408 return new DeviceAdminInfo(mContext, ai); 2409 } catch (XmlPullParserException | IOException e) { 2410 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2411 e); 2412 return null; 2413 } 2414 } 2415 2416 private JournaledFile makeJournaledFile(int userHandle) { 2417 final String base = userHandle == UserHandle.USER_SYSTEM 2418 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 2419 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2420 DEVICE_POLICIES_XML).getAbsolutePath(); 2421 if (VERBOSE_LOG) { 2422 Log.v(LOG_TAG, "Opening " + base); 2423 } 2424 return new JournaledFile(new File(base), new File(base + ".tmp")); 2425 } 2426 2427 private void saveSettingsLocked(int userHandle) { 2428 DevicePolicyData policy = getUserData(userHandle); 2429 JournaledFile journal = makeJournaledFile(userHandle); 2430 FileOutputStream stream = null; 2431 try { 2432 stream = new FileOutputStream(journal.chooseForWrite(), false); 2433 XmlSerializer out = new FastXmlSerializer(); 2434 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2435 out.startDocument(null, true); 2436 2437 out.startTag(null, "policies"); 2438 if (policy.mRestrictionsProvider != null) { 2439 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2440 policy.mRestrictionsProvider.flattenToString()); 2441 } 2442 if (policy.mUserSetupComplete) { 2443 out.attribute(null, ATTR_SETUP_COMPLETE, 2444 Boolean.toString(true)); 2445 } 2446 if (policy.mPaired) { 2447 out.attribute(null, ATTR_DEVICE_PAIRED, 2448 Boolean.toString(true)); 2449 } 2450 if (policy.mDeviceProvisioningConfigApplied) { 2451 out.attribute(null, ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED, 2452 Boolean.toString(true)); 2453 } 2454 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2455 out.attribute(null, ATTR_PROVISIONING_STATE, 2456 Integer.toString(policy.mUserProvisioningState)); 2457 } 2458 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2459 out.attribute(null, ATTR_PERMISSION_POLICY, 2460 Integer.toString(policy.mPermissionPolicy)); 2461 } 2462 2463 // Serialize delegations. 2464 for (int i = 0; i < policy.mDelegationMap.size(); ++i) { 2465 final String delegatePackage = policy.mDelegationMap.keyAt(i); 2466 final List<String> scopes = policy.mDelegationMap.valueAt(i); 2467 2468 // Every "delegation" tag serializes the information of one delegate-scope pair. 2469 for (String scope : scopes) { 2470 out.startTag(null, "delegation"); 2471 out.attribute(null, "delegatePackage", delegatePackage); 2472 out.attribute(null, "scope", scope); 2473 out.endTag(null, "delegation"); 2474 } 2475 } 2476 2477 final int N = policy.mAdminList.size(); 2478 for (int i=0; i<N; i++) { 2479 ActiveAdmin ap = policy.mAdminList.get(i); 2480 if (ap != null) { 2481 out.startTag(null, "admin"); 2482 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2483 ap.writeToXml(out); 2484 out.endTag(null, "admin"); 2485 } 2486 } 2487 2488 if (policy.mPasswordOwner >= 0) { 2489 out.startTag(null, "password-owner"); 2490 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2491 out.endTag(null, "password-owner"); 2492 } 2493 2494 if (policy.mFailedPasswordAttempts != 0) { 2495 out.startTag(null, "failed-password-attempts"); 2496 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2497 out.endTag(null, "failed-password-attempts"); 2498 } 2499 2500 // Don't save metrics for FBE devices 2501 final PasswordMetrics metrics = policy.mActivePasswordMetrics; 2502 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled() && !metrics.isDefault()) { 2503 out.startTag(null, "active-password"); 2504 out.attribute(null, "quality", Integer.toString(metrics.quality)); 2505 out.attribute(null, "length", Integer.toString(metrics.length)); 2506 out.attribute(null, "uppercase", Integer.toString(metrics.upperCase)); 2507 out.attribute(null, "lowercase", Integer.toString(metrics.lowerCase)); 2508 out.attribute(null, "letters", Integer.toString(metrics.letters)); 2509 out.attribute(null, "numeric", Integer.toString(metrics.numeric)); 2510 out.attribute(null, "symbols", Integer.toString(metrics.symbols)); 2511 out.attribute(null, "nonletter", Integer.toString(metrics.nonLetter)); 2512 out.endTag(null, "active-password"); 2513 } 2514 2515 for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) { 2516 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2517 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i)); 2518 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2519 } 2520 2521 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2522 String component = policy.mLockTaskPackages.get(i); 2523 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2524 out.attribute(null, "name", component); 2525 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2526 } 2527 2528 if (policy.mStatusBarDisabled) { 2529 out.startTag(null, TAG_STATUS_BAR); 2530 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2531 out.endTag(null, TAG_STATUS_BAR); 2532 } 2533 2534 if (policy.doNotAskCredentialsOnBoot) { 2535 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2536 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2537 } 2538 2539 for (String id : policy.mAffiliationIds) { 2540 out.startTag(null, TAG_AFFILIATION_ID); 2541 out.attribute(null, ATTR_ID, id); 2542 out.endTag(null, TAG_AFFILIATION_ID); 2543 } 2544 2545 if (policy.mLastSecurityLogRetrievalTime >= 0) { 2546 out.startTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2547 out.attribute(null, ATTR_VALUE, 2548 Long.toString(policy.mLastSecurityLogRetrievalTime)); 2549 out.endTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2550 } 2551 2552 if (policy.mLastBugReportRequestTime >= 0) { 2553 out.startTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2554 out.attribute(null, ATTR_VALUE, 2555 Long.toString(policy.mLastBugReportRequestTime)); 2556 out.endTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2557 } 2558 2559 if (policy.mLastNetworkLogsRetrievalTime >= 0) { 2560 out.startTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2561 out.attribute(null, ATTR_VALUE, 2562 Long.toString(policy.mLastNetworkLogsRetrievalTime)); 2563 out.endTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2564 } 2565 2566 if (policy.mAdminBroadcastPending) { 2567 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2568 out.attribute(null, ATTR_VALUE, 2569 Boolean.toString(policy.mAdminBroadcastPending)); 2570 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2571 } 2572 2573 if (policy.mInitBundle != null) { 2574 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 2575 policy.mInitBundle.saveToXml(out); 2576 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 2577 } 2578 2579 if (policy.mPasswordTokenHandle != 0) { 2580 out.startTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2581 out.attribute(null, ATTR_VALUE, 2582 Long.toString(policy.mPasswordTokenHandle)); 2583 out.endTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2584 } 2585 2586 if (policy.mDefaultInputMethodSet) { 2587 out.startTag(null, TAG_DEFAULT_INPUT_METHOD_SET); 2588 out.endTag(null, TAG_DEFAULT_INPUT_METHOD_SET); 2589 } 2590 2591 out.endTag(null, "policies"); 2592 2593 out.endDocument(); 2594 stream.flush(); 2595 FileUtils.sync(stream); 2596 stream.close(); 2597 journal.commit(); 2598 sendChangedNotification(userHandle); 2599 } catch (XmlPullParserException | IOException e) { 2600 Slog.w(LOG_TAG, "failed writing file", e); 2601 try { 2602 if (stream != null) { 2603 stream.close(); 2604 } 2605 } catch (IOException ex) { 2606 // Ignore 2607 } 2608 journal.rollback(); 2609 } 2610 } 2611 2612 private void sendChangedNotification(int userHandle) { 2613 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 2614 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2615 long ident = mInjector.binderClearCallingIdentity(); 2616 try { 2617 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 2618 } finally { 2619 mInjector.binderRestoreCallingIdentity(ident); 2620 } 2621 } 2622 2623 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 2624 JournaledFile journal = makeJournaledFile(userHandle); 2625 FileInputStream stream = null; 2626 File file = journal.chooseForRead(); 2627 boolean needsRewrite = false; 2628 try { 2629 stream = new FileInputStream(file); 2630 XmlPullParser parser = Xml.newPullParser(); 2631 parser.setInput(stream, StandardCharsets.UTF_8.name()); 2632 2633 int type; 2634 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2635 && type != XmlPullParser.START_TAG) { 2636 } 2637 String tag = parser.getName(); 2638 if (!"policies".equals(tag)) { 2639 throw new XmlPullParserException( 2640 "Settings do not start with policies tag: found " + tag); 2641 } 2642 2643 // Extract the permission provider component name if available 2644 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 2645 if (permissionProvider != null) { 2646 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 2647 } 2648 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 2649 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 2650 policy.mUserSetupComplete = true; 2651 } 2652 String paired = parser.getAttributeValue(null, ATTR_DEVICE_PAIRED); 2653 if (paired != null && Boolean.toString(true).equals(paired)) { 2654 policy.mPaired = true; 2655 } 2656 String deviceProvisioningConfigApplied = parser.getAttributeValue(null, 2657 ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED); 2658 if (deviceProvisioningConfigApplied != null 2659 && Boolean.toString(true).equals(deviceProvisioningConfigApplied)) { 2660 policy.mDeviceProvisioningConfigApplied = true; 2661 } 2662 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 2663 if (!TextUtils.isEmpty(provisioningState)) { 2664 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 2665 } 2666 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 2667 if (!TextUtils.isEmpty(permissionPolicy)) { 2668 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 2669 } 2670 // Check for delegation compatibility with pre-O. 2671 // TODO(edmanp) remove in P. 2672 { 2673 final String certDelegate = parser.getAttributeValue(null, 2674 ATTR_DELEGATED_CERT_INSTALLER); 2675 if (certDelegate != null) { 2676 List<String> scopes = policy.mDelegationMap.get(certDelegate); 2677 if (scopes == null) { 2678 scopes = new ArrayList<>(); 2679 policy.mDelegationMap.put(certDelegate, scopes); 2680 } 2681 if (!scopes.contains(DELEGATION_CERT_INSTALL)) { 2682 scopes.add(DELEGATION_CERT_INSTALL); 2683 needsRewrite = true; 2684 } 2685 } 2686 final String appRestrictionsDelegate = parser.getAttributeValue(null, 2687 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 2688 if (appRestrictionsDelegate != null) { 2689 List<String> scopes = policy.mDelegationMap.get(appRestrictionsDelegate); 2690 if (scopes == null) { 2691 scopes = new ArrayList<>(); 2692 policy.mDelegationMap.put(appRestrictionsDelegate, scopes); 2693 } 2694 if (!scopes.contains(DELEGATION_APP_RESTRICTIONS)) { 2695 scopes.add(DELEGATION_APP_RESTRICTIONS); 2696 needsRewrite = true; 2697 } 2698 } 2699 } 2700 2701 type = parser.next(); 2702 int outerDepth = parser.getDepth(); 2703 policy.mLockTaskPackages.clear(); 2704 policy.mAdminList.clear(); 2705 policy.mAdminMap.clear(); 2706 policy.mAffiliationIds.clear(); 2707 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2708 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2709 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2710 continue; 2711 } 2712 tag = parser.getName(); 2713 if ("admin".equals(tag)) { 2714 String name = parser.getAttributeValue(null, "name"); 2715 try { 2716 DeviceAdminInfo dai = findAdmin( 2717 ComponentName.unflattenFromString(name), userHandle, 2718 /* throwForMissionPermission= */ false); 2719 if (VERBOSE_LOG 2720 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 2721 != userHandle)) { 2722 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 2723 + dai.getActivityInfo().applicationInfo.uid + " for user " 2724 + userHandle); 2725 } 2726 if (dai != null) { 2727 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 2728 ap.readFromXml(parser); 2729 policy.mAdminMap.put(ap.info.getComponent(), ap); 2730 } 2731 } catch (RuntimeException e) { 2732 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 2733 } 2734 } else if ("delegation".equals(tag)) { 2735 // Parse delegation info. 2736 final String delegatePackage = parser.getAttributeValue(null, 2737 "delegatePackage"); 2738 final String scope = parser.getAttributeValue(null, "scope"); 2739 2740 // Get a reference to the scopes list for the delegatePackage. 2741 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 2742 // Or make a new list if none was found. 2743 if (scopes == null) { 2744 scopes = new ArrayList<>(); 2745 policy.mDelegationMap.put(delegatePackage, scopes); 2746 } 2747 // Add the new scope to the list of delegatePackage if it's not already there. 2748 if (!scopes.contains(scope)) { 2749 scopes.add(scope); 2750 } 2751 } else if ("failed-password-attempts".equals(tag)) { 2752 policy.mFailedPasswordAttempts = Integer.parseInt( 2753 parser.getAttributeValue(null, "value")); 2754 } else if ("password-owner".equals(tag)) { 2755 policy.mPasswordOwner = Integer.parseInt( 2756 parser.getAttributeValue(null, "value")); 2757 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) { 2758 policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME)); 2759 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2760 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2761 } else if (TAG_STATUS_BAR.equals(tag)) { 2762 policy.mStatusBarDisabled = Boolean.parseBoolean( 2763 parser.getAttributeValue(null, ATTR_DISABLED)); 2764 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2765 policy.doNotAskCredentialsOnBoot = true; 2766 } else if (TAG_AFFILIATION_ID.equals(tag)) { 2767 policy.mAffiliationIds.add(parser.getAttributeValue(null, ATTR_ID)); 2768 } else if (TAG_LAST_SECURITY_LOG_RETRIEVAL.equals(tag)) { 2769 policy.mLastSecurityLogRetrievalTime = Long.parseLong( 2770 parser.getAttributeValue(null, ATTR_VALUE)); 2771 } else if (TAG_LAST_BUG_REPORT_REQUEST.equals(tag)) { 2772 policy.mLastBugReportRequestTime = Long.parseLong( 2773 parser.getAttributeValue(null, ATTR_VALUE)); 2774 } else if (TAG_LAST_NETWORK_LOG_RETRIEVAL.equals(tag)) { 2775 policy.mLastNetworkLogsRetrievalTime = Long.parseLong( 2776 parser.getAttributeValue(null, ATTR_VALUE)); 2777 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 2778 String pending = parser.getAttributeValue(null, ATTR_VALUE); 2779 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 2780 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 2781 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 2782 } else if ("active-password".equals(tag)) { 2783 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 2784 // Remove this from FBE devices 2785 needsRewrite = true; 2786 } else { 2787 final PasswordMetrics m = policy.mActivePasswordMetrics; 2788 m.quality = Integer.parseInt(parser.getAttributeValue(null, "quality")); 2789 m.length = Integer.parseInt(parser.getAttributeValue(null, "length")); 2790 m.upperCase = Integer.parseInt(parser.getAttributeValue(null, "uppercase")); 2791 m.lowerCase = Integer.parseInt(parser.getAttributeValue(null, "lowercase")); 2792 m.letters = Integer.parseInt(parser.getAttributeValue(null, "letters")); 2793 m.numeric = Integer.parseInt(parser.getAttributeValue(null, "numeric")); 2794 m.symbols = Integer.parseInt(parser.getAttributeValue(null, "symbols")); 2795 m.nonLetter = Integer.parseInt(parser.getAttributeValue(null, "nonletter")); 2796 } 2797 } else if (TAG_PASSWORD_TOKEN_HANDLE.equals(tag)) { 2798 policy.mPasswordTokenHandle = Long.parseLong( 2799 parser.getAttributeValue(null, ATTR_VALUE)); 2800 } else if (TAG_DEFAULT_INPUT_METHOD_SET.equals(tag)) { 2801 policy.mDefaultInputMethodSet = true; 2802 } else { 2803 Slog.w(LOG_TAG, "Unknown tag: " + tag); 2804 XmlUtils.skipCurrentTag(parser); 2805 } 2806 } 2807 } catch (FileNotFoundException e) { 2808 // Don't be noisy, this is normal if we haven't defined any policies. 2809 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 2810 | IndexOutOfBoundsException e) { 2811 Slog.w(LOG_TAG, "failed parsing " + file, e); 2812 } 2813 try { 2814 if (stream != null) { 2815 stream.close(); 2816 } 2817 } catch (IOException e) { 2818 // Ignore 2819 } 2820 2821 // Generate a list of admins from the admin map 2822 policy.mAdminList.addAll(policy.mAdminMap.values()); 2823 2824 // Might need to upgrade the file by rewriting it 2825 if (needsRewrite) { 2826 saveSettingsLocked(userHandle); 2827 } 2828 2829 validatePasswordOwnerLocked(policy); 2830 updateMaximumTimeToLockLocked(userHandle); 2831 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2832 if (policy.mStatusBarDisabled) { 2833 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2834 } 2835 } 2836 2837 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2838 long ident = mInjector.binderClearCallingIdentity(); 2839 try { 2840 mInjector.getIActivityManager() 2841 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2842 } catch (RemoteException e) { 2843 // Not gonna happen. 2844 } finally { 2845 mInjector.binderRestoreCallingIdentity(ident); 2846 } 2847 } 2848 2849 private void updateDeviceOwnerLocked() { 2850 long ident = mInjector.binderClearCallingIdentity(); 2851 try { 2852 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2853 // user id and also protect all other DAs too. 2854 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2855 if (deviceOwnerComponent != null) { 2856 mInjector.getIActivityManager() 2857 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2858 } 2859 } catch (RemoteException e) { 2860 // Not gonna happen. 2861 } finally { 2862 mInjector.binderRestoreCallingIdentity(ident); 2863 } 2864 } 2865 2866 static void validateQualityConstant(int quality) { 2867 switch (quality) { 2868 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2869 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2870 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2871 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2872 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2873 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2874 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2875 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2876 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 2877 return; 2878 } 2879 throw new IllegalArgumentException("Invalid quality constant: 0x" 2880 + Integer.toHexString(quality)); 2881 } 2882 2883 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2884 if (policy.mPasswordOwner >= 0) { 2885 boolean haveOwner = false; 2886 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2887 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2888 haveOwner = true; 2889 break; 2890 } 2891 } 2892 if (!haveOwner) { 2893 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2894 + " no longer active; disabling"); 2895 policy.mPasswordOwner = -1; 2896 } 2897 } 2898 } 2899 2900 @VisibleForTesting 2901 void systemReady(int phase) { 2902 if (!mHasFeature) { 2903 return; 2904 } 2905 switch (phase) { 2906 case SystemService.PHASE_LOCK_SETTINGS_READY: 2907 onLockSettingsReady(); 2908 break; 2909 case SystemService.PHASE_BOOT_COMPLETED: 2910 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2911 break; 2912 } 2913 } 2914 2915 private void ensureUnknownSourcesRestrictionForProfileOwners() { 2916 synchronized (this) { 2917 for (int userId : mOwners.getProfileOwnerKeys().toArray(new Integer[0])) { 2918 if (!mUserManager.isManagedProfile(userId) || 2919 Settings.Secure.getIntForUser(mContext.getContentResolver(), 2920 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId) == 0) { 2921 continue; 2922 } 2923 setUserRestrictionOnBehalfOfProfileOwnerLocked( 2924 UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, userId); 2925 Settings.Secure.putIntForUser(mContext.getContentResolver(), 2926 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId); 2927 } 2928 } 2929 } 2930 2931 private void setUserRestrictionOnBehalfOfProfileOwnerLocked(String userRestrictionKey, 2932 int userId) { 2933 if (UserRestrictionsUtils.isValidRestriction(userRestrictionKey) && 2934 UserRestrictionsUtils.canProfileOwnerChange(userRestrictionKey, userId)) { 2935 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 2936 if (profileOwner == null) { 2937 return; 2938 } 2939 Bundle restrictions = profileOwner.ensureUserRestrictions(); 2940 restrictions.putBoolean(userRestrictionKey, true); 2941 saveUserRestrictionsLocked(userId); 2942 } 2943 } 2944 2945 private void onLockSettingsReady() { 2946 getUserData(UserHandle.USER_SYSTEM); 2947 loadOwners(); 2948 cleanUpOldUsers(); 2949 ensureUnknownSourcesRestrictionForProfileOwners(); 2950 onStartUser(UserHandle.USER_SYSTEM); 2951 2952 // Register an observer for watching for user setup complete and settings changes. 2953 mSetupContentObserver.register(); 2954 // Initialize the user setup state, to handle the upgrade case. 2955 updateUserSetupCompleteAndPaired(); 2956 2957 List<String> packageList; 2958 synchronized (this) { 2959 packageList = getKeepUninstalledPackagesLocked(); 2960 } 2961 if (packageList != null) { 2962 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 2963 } 2964 2965 synchronized (this) { 2966 // push the force-ephemeral-users policy to the user manager. 2967 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 2968 if (deviceOwner != null) { 2969 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 2970 } 2971 } 2972 } 2973 2974 private void ensureDeviceOwnerUserStarted() { 2975 final int userId; 2976 synchronized (this) { 2977 if (!mOwners.hasDeviceOwner()) { 2978 return; 2979 } 2980 userId = mOwners.getDeviceOwnerUserId(); 2981 } 2982 if (VERBOSE_LOG) { 2983 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2984 } 2985 if (userId != UserHandle.USER_SYSTEM) { 2986 try { 2987 mInjector.getIActivityManager().startUserInBackground(userId); 2988 2989 // STOPSHIP Prevent the DO user from being killed. 2990 2991 } catch (RemoteException e) { 2992 Slog.w(LOG_TAG, "Exception starting user", e); 2993 } 2994 } 2995 } 2996 2997 private void onStartUser(int userId) { 2998 updateScreenCaptureDisabledInWindowManager(userId, 2999 getScreenCaptureDisabled(null, userId)); 3000 pushUserRestrictions(userId); 3001 } 3002 3003 private void cleanUpOldUsers() { 3004 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 3005 // before reboot 3006 Set<Integer> usersWithProfileOwners; 3007 Set<Integer> usersWithData; 3008 synchronized(this) { 3009 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 3010 usersWithData = new ArraySet<>(); 3011 for (int i = 0; i < mUserData.size(); i++) { 3012 usersWithData.add(mUserData.keyAt(i)); 3013 } 3014 } 3015 List<UserInfo> allUsers = mUserManager.getUsers(); 3016 3017 Set<Integer> deletedUsers = new ArraySet<>(); 3018 deletedUsers.addAll(usersWithProfileOwners); 3019 deletedUsers.addAll(usersWithData); 3020 for (UserInfo userInfo : allUsers) { 3021 deletedUsers.remove(userInfo.id); 3022 } 3023 for (Integer userId : deletedUsers) { 3024 removeUserData(userId); 3025 } 3026 } 3027 3028 private void handlePasswordExpirationNotification(int userHandle) { 3029 final Bundle adminExtras = new Bundle(); 3030 adminExtras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 3031 3032 synchronized (this) { 3033 final long now = System.currentTimeMillis(); 3034 3035 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 3036 userHandle, /* parent */ false); 3037 final int N = admins.size(); 3038 for (int i = 0; i < N; i++) { 3039 ActiveAdmin admin = admins.get(i); 3040 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 3041 && admin.passwordExpirationTimeout > 0L 3042 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 3043 && admin.passwordExpirationDate > 0L) { 3044 sendAdminCommandLocked(admin, 3045 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING, adminExtras, null); 3046 } 3047 } 3048 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 3049 } 3050 } 3051 3052 /** 3053 * Remove deleted CA certificates from the "approved" list for a particular user, counting 3054 * the number still remaining to approve. 3055 * 3056 * @param userHandle user to check for. This must be a real user and not, for example, 3057 * {@link UserHandle#ALL}. 3058 * @param installedCertificates the full set of certificate authorities currently installed for 3059 * {@param userHandle}. After calling this function, {@code mAcceptedCaCertificates} will 3060 * correspond to some subset of this. 3061 * 3062 * @return number of certificates yet to be approved by {@param userHandle}. 3063 */ 3064 protected synchronized int retainAcceptedCertificates(final UserHandle userHandle, 3065 final @NonNull Collection<String> installedCertificates) { 3066 enforceManageUsers(); 3067 3068 if (!mHasFeature) { 3069 return installedCertificates.size(); 3070 } else { 3071 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 3072 3073 // Remove deleted certificates. Flush xml if necessary. 3074 if (policy.mAcceptedCaCertificates.retainAll(installedCertificates)) { 3075 saveSettingsLocked(userHandle.getIdentifier()); 3076 } 3077 3078 // Trim approved certificates from the count. 3079 return installedCertificates.size() - policy.mAcceptedCaCertificates.size(); 3080 } 3081 } 3082 3083 /** 3084 * @param adminReceiver The admin to add 3085 * @param refreshing true = update an active admin, no error 3086 */ 3087 @Override 3088 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 3089 if (!mHasFeature) { 3090 return; 3091 } 3092 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 3093 } 3094 3095 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 3096 Bundle onEnableData) { 3097 mContext.enforceCallingOrSelfPermission( 3098 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3099 enforceFullCrossUsersPermission(userHandle); 3100 3101 DevicePolicyData policy = getUserData(userHandle); 3102 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 3103 /* throwForMissionPermission= */ true); 3104 if (info == null) { 3105 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 3106 } 3107 if (!info.getActivityInfo().applicationInfo.isInternal()) { 3108 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 3109 + adminReceiver); 3110 } 3111 synchronized (this) { 3112 long ident = mInjector.binderClearCallingIdentity(); 3113 try { 3114 final ActiveAdmin existingAdmin 3115 = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3116 if (!refreshing && existingAdmin != null) { 3117 throw new IllegalArgumentException("Admin is already added"); 3118 } 3119 if (policy.mRemovingAdmins.contains(adminReceiver)) { 3120 throw new IllegalArgumentException( 3121 "Trying to set an admin which is being removed"); 3122 } 3123 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 3124 newAdmin.testOnlyAdmin = 3125 (existingAdmin != null) ? existingAdmin.testOnlyAdmin 3126 : isPackageTestOnly(adminReceiver.getPackageName(), userHandle); 3127 policy.mAdminMap.put(adminReceiver, newAdmin); 3128 int replaceIndex = -1; 3129 final int N = policy.mAdminList.size(); 3130 for (int i=0; i < N; i++) { 3131 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 3132 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 3133 replaceIndex = i; 3134 break; 3135 } 3136 } 3137 if (replaceIndex == -1) { 3138 policy.mAdminList.add(newAdmin); 3139 enableIfNecessary(info.getPackageName(), userHandle); 3140 } else { 3141 policy.mAdminList.set(replaceIndex, newAdmin); 3142 } 3143 saveSettingsLocked(userHandle); 3144 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 3145 onEnableData, null); 3146 } finally { 3147 mInjector.binderRestoreCallingIdentity(ident); 3148 } 3149 } 3150 } 3151 3152 @Override 3153 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 3154 if (!mHasFeature) { 3155 return false; 3156 } 3157 enforceFullCrossUsersPermission(userHandle); 3158 synchronized (this) { 3159 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 3160 } 3161 } 3162 3163 @Override 3164 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 3165 if (!mHasFeature) { 3166 return false; 3167 } 3168 enforceFullCrossUsersPermission(userHandle); 3169 synchronized (this) { 3170 DevicePolicyData policyData = getUserData(userHandle); 3171 return policyData.mRemovingAdmins.contains(adminReceiver); 3172 } 3173 } 3174 3175 @Override 3176 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 3177 if (!mHasFeature) { 3178 return false; 3179 } 3180 enforceFullCrossUsersPermission(userHandle); 3181 synchronized (this) { 3182 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3183 if (administrator == null) { 3184 throw new SecurityException("No active admin " + adminReceiver); 3185 } 3186 return administrator.info.usesPolicy(policyId); 3187 } 3188 } 3189 3190 @Override 3191 @SuppressWarnings("unchecked") 3192 public List<ComponentName> getActiveAdmins(int userHandle) { 3193 if (!mHasFeature) { 3194 return Collections.EMPTY_LIST; 3195 } 3196 3197 enforceFullCrossUsersPermission(userHandle); 3198 synchronized (this) { 3199 DevicePolicyData policy = getUserData(userHandle); 3200 final int N = policy.mAdminList.size(); 3201 if (N <= 0) { 3202 return null; 3203 } 3204 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 3205 for (int i=0; i<N; i++) { 3206 res.add(policy.mAdminList.get(i).info.getComponent()); 3207 } 3208 return res; 3209 } 3210 } 3211 3212 @Override 3213 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 3214 if (!mHasFeature) { 3215 return false; 3216 } 3217 enforceFullCrossUsersPermission(userHandle); 3218 synchronized (this) { 3219 DevicePolicyData policy = getUserData(userHandle); 3220 final int N = policy.mAdminList.size(); 3221 for (int i=0; i<N; i++) { 3222 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 3223 return true; 3224 } 3225 } 3226 return false; 3227 } 3228 } 3229 3230 public void forceRemoveActiveAdmin(ComponentName adminReceiver, int userHandle) { 3231 if (!mHasFeature) { 3232 return; 3233 } 3234 Preconditions.checkNotNull(adminReceiver, "ComponentName is null"); 3235 enforceShell("forceRemoveActiveAdmin"); 3236 long ident = mInjector.binderClearCallingIdentity(); 3237 try { 3238 synchronized (this) { 3239 if (!isAdminTestOnlyLocked(adminReceiver, userHandle)) { 3240 throw new SecurityException("Attempt to remove non-test admin " 3241 + adminReceiver + " " + userHandle); 3242 } 3243 3244 // If admin is a device or profile owner tidy that up first. 3245 if (isDeviceOwner(adminReceiver, userHandle)) { 3246 clearDeviceOwnerLocked(getDeviceOwnerAdminLocked(), userHandle); 3247 } 3248 if (isProfileOwner(adminReceiver, userHandle)) { 3249 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, 3250 userHandle, /* parent */ false); 3251 clearProfileOwnerLocked(admin, userHandle); 3252 } 3253 } 3254 // Remove the admin skipping sending the broadcast. 3255 removeAdminArtifacts(adminReceiver, userHandle); 3256 Slog.i(LOG_TAG, "Admin " + adminReceiver + " removed from user " + userHandle); 3257 } finally { 3258 mInjector.binderRestoreCallingIdentity(ident); 3259 } 3260 } 3261 3262 private void clearDeviceOwnerUserRestrictionLocked(UserHandle userHandle) { 3263 // ManagedProvisioning/DPC sets DISALLOW_ADD_USER. Clear to recover to the original state 3264 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_USER, userHandle)) { 3265 mUserManager.setUserRestriction(UserManager.DISALLOW_ADD_USER, false, userHandle); 3266 } 3267 } 3268 3269 /** 3270 * Return if a given package has testOnly="true", in which case we'll relax certain rules 3271 * for CTS. 3272 * 3273 * DO NOT use this method except in {@link #setActiveAdmin}. Use {@link #isAdminTestOnlyLocked} 3274 * to check wehter an active admin is test-only or not. 3275 * 3276 * The system allows this flag to be changed when an app is updated, which is not good 3277 * for us. So we persist the flag in {@link ActiveAdmin} when an admin is first installed, 3278 * and used the persisted version in actual checks. (See b/31382361 and b/28928996) 3279 */ 3280 private boolean isPackageTestOnly(String packageName, int userHandle) { 3281 final ApplicationInfo ai; 3282 try { 3283 ai = mIPackageManager.getApplicationInfo(packageName, 3284 (PackageManager.MATCH_DIRECT_BOOT_AWARE 3285 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE), userHandle); 3286 } catch (RemoteException e) { 3287 throw new IllegalStateException(e); 3288 } 3289 if (ai == null) { 3290 throw new IllegalStateException("Couldn't find package: " 3291 + packageName + " on user " + userHandle); 3292 } 3293 return (ai.flags & ApplicationInfo.FLAG_TEST_ONLY) != 0; 3294 } 3295 3296 /** 3297 * See {@link #isPackageTestOnly}. 3298 */ 3299 private boolean isAdminTestOnlyLocked(ComponentName who, int userHandle) { 3300 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3301 return (admin != null) && admin.testOnlyAdmin; 3302 } 3303 3304 private void enforceShell(String method) { 3305 final int callingUid = Binder.getCallingUid(); 3306 if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) { 3307 throw new SecurityException("Non-shell user attempted to call " + method); 3308 } 3309 } 3310 3311 @Override 3312 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 3313 if (!mHasFeature) { 3314 return; 3315 } 3316 enforceFullCrossUsersPermission(userHandle); 3317 enforceUserUnlocked(userHandle); 3318 synchronized (this) { 3319 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3320 if (admin == null) { 3321 return; 3322 } 3323 // Active device/profile owners must remain active admins. 3324 if (isDeviceOwner(adminReceiver, userHandle) 3325 || isProfileOwner(adminReceiver, userHandle)) { 3326 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 3327 adminReceiver); 3328 return; 3329 } 3330 if (admin.getUid() != mInjector.binderGetCallingUid()) { 3331 mContext.enforceCallingOrSelfPermission( 3332 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3333 } 3334 long ident = mInjector.binderClearCallingIdentity(); 3335 try { 3336 removeActiveAdminLocked(adminReceiver, userHandle); 3337 } finally { 3338 mInjector.binderRestoreCallingIdentity(ident); 3339 } 3340 } 3341 } 3342 3343 @Override 3344 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 3345 ComponentName profileOwner = getProfileOwner(userHandle); 3346 // Profile challenge is supported on N or newer release. 3347 return profileOwner != null && 3348 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 3349 } 3350 3351 @Override 3352 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 3353 if (!mHasFeature) { 3354 return; 3355 } 3356 Preconditions.checkNotNull(who, "ComponentName is null"); 3357 validateQualityConstant(quality); 3358 3359 synchronized (this) { 3360 ActiveAdmin ap = getActiveAdminForCallerLocked( 3361 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3362 if (ap.minimumPasswordMetrics.quality != quality) { 3363 ap.minimumPasswordMetrics.quality = quality; 3364 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3365 } 3366 } 3367 } 3368 3369 @Override 3370 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 3371 if (!mHasFeature) { 3372 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3373 } 3374 enforceFullCrossUsersPermission(userHandle); 3375 synchronized (this) { 3376 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3377 3378 if (who != null) { 3379 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3380 return admin != null ? admin.minimumPasswordMetrics.quality : mode; 3381 } 3382 3383 // Return the strictest policy across all participating admins. 3384 List<ActiveAdmin> admins = 3385 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3386 final int N = admins.size(); 3387 for (int i = 0; i < N; i++) { 3388 ActiveAdmin admin = admins.get(i); 3389 if (mode < admin.minimumPasswordMetrics.quality) { 3390 mode = admin.minimumPasswordMetrics.quality; 3391 } 3392 } 3393 return mode; 3394 } 3395 } 3396 3397 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 3398 int userHandle, boolean parent) { 3399 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 3400 // If this user has a separate challenge, only return its restrictions. 3401 return getUserDataUnchecked(userHandle).mAdminList; 3402 } else { 3403 // Return all admins for this user and the profiles that are visible from this 3404 // user that do not use a separate work challenge. 3405 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 3406 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3407 DevicePolicyData policy = getUserData(userInfo.id); 3408 if (!userInfo.isManagedProfile()) { 3409 admins.addAll(policy.mAdminList); 3410 } else { 3411 // For managed profiles, we always include the policies set on the parent 3412 // profile. Additionally, we include the ones set on the managed profile 3413 // if no separate challenge is in place. 3414 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 3415 final int N = policy.mAdminList.size(); 3416 for (int i = 0; i < N; i++) { 3417 ActiveAdmin admin = policy.mAdminList.get(i); 3418 if (admin.hasParentActiveAdmin()) { 3419 admins.add(admin.getParentActiveAdmin()); 3420 } 3421 if (!hasSeparateChallenge) { 3422 admins.add(admin); 3423 } 3424 } 3425 } 3426 } 3427 return admins; 3428 } 3429 } 3430 3431 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 3432 long ident = mInjector.binderClearCallingIdentity(); 3433 try { 3434 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 3435 } finally { 3436 mInjector.binderRestoreCallingIdentity(ident); 3437 } 3438 } 3439 3440 @Override 3441 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 3442 if (!mHasFeature) { 3443 return; 3444 } 3445 Preconditions.checkNotNull(who, "ComponentName is null"); 3446 synchronized (this) { 3447 ActiveAdmin ap = getActiveAdminForCallerLocked( 3448 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3449 if (ap.minimumPasswordMetrics.length != length) { 3450 ap.minimumPasswordMetrics.length = length; 3451 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3452 } 3453 } 3454 } 3455 3456 @Override 3457 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 3458 if (!mHasFeature) { 3459 return 0; 3460 } 3461 enforceFullCrossUsersPermission(userHandle); 3462 synchronized (this) { 3463 int length = 0; 3464 3465 if (who != null) { 3466 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3467 return admin != null ? admin.minimumPasswordMetrics.length : length; 3468 } 3469 3470 // Return the strictest policy across all participating admins. 3471 List<ActiveAdmin> admins = 3472 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3473 final int N = admins.size(); 3474 for (int i = 0; i < N; i++) { 3475 ActiveAdmin admin = admins.get(i); 3476 if (length < admin.minimumPasswordMetrics.length) { 3477 length = admin.minimumPasswordMetrics.length; 3478 } 3479 } 3480 return length; 3481 } 3482 } 3483 3484 @Override 3485 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 3486 if (!mHasFeature) { 3487 return; 3488 } 3489 Preconditions.checkNotNull(who, "ComponentName is null"); 3490 synchronized (this) { 3491 ActiveAdmin ap = getActiveAdminForCallerLocked( 3492 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3493 if (ap.passwordHistoryLength != length) { 3494 ap.passwordHistoryLength = length; 3495 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3496 } 3497 } 3498 } 3499 3500 @Override 3501 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 3502 if (!mHasFeature) { 3503 return 0; 3504 } 3505 enforceFullCrossUsersPermission(userHandle); 3506 synchronized (this) { 3507 int length = 0; 3508 3509 if (who != null) { 3510 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3511 return admin != null ? admin.passwordHistoryLength : length; 3512 } 3513 3514 // Return the strictest policy across all participating admins. 3515 List<ActiveAdmin> admins = 3516 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3517 final int N = admins.size(); 3518 for (int i = 0; i < N; i++) { 3519 ActiveAdmin admin = admins.get(i); 3520 if (length < admin.passwordHistoryLength) { 3521 length = admin.passwordHistoryLength; 3522 } 3523 } 3524 3525 return length; 3526 } 3527 } 3528 3529 @Override 3530 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 3531 if (!mHasFeature) { 3532 return; 3533 } 3534 Preconditions.checkNotNull(who, "ComponentName is null"); 3535 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 3536 final int userHandle = mInjector.userHandleGetCallingUserId(); 3537 synchronized (this) { 3538 ActiveAdmin ap = getActiveAdminForCallerLocked( 3539 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 3540 // Calling this API automatically bumps the expiration date 3541 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3542 ap.passwordExpirationDate = expiration; 3543 ap.passwordExpirationTimeout = timeout; 3544 if (timeout > 0L) { 3545 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 3546 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 3547 .format(new Date(expiration))); 3548 } 3549 saveSettingsLocked(userHandle); 3550 3551 // in case this is the first one, set the alarm on the appropriate user. 3552 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 3553 } 3554 } 3555 3556 /** 3557 * Return a single admin's expiration cycle time, or the min of all cycle times. 3558 * Returns 0 if not configured. 3559 */ 3560 @Override 3561 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 3562 if (!mHasFeature) { 3563 return 0L; 3564 } 3565 enforceFullCrossUsersPermission(userHandle); 3566 synchronized (this) { 3567 long timeout = 0L; 3568 3569 if (who != null) { 3570 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3571 return admin != null ? admin.passwordExpirationTimeout : timeout; 3572 } 3573 3574 // Return the strictest policy across all participating admins. 3575 List<ActiveAdmin> admins = 3576 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3577 final int N = admins.size(); 3578 for (int i = 0; i < N; i++) { 3579 ActiveAdmin admin = admins.get(i); 3580 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 3581 && timeout > admin.passwordExpirationTimeout)) { 3582 timeout = admin.passwordExpirationTimeout; 3583 } 3584 } 3585 return timeout; 3586 } 3587 } 3588 3589 @Override 3590 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3591 final int userId = UserHandle.getCallingUserId(); 3592 List<String> changedProviders = null; 3593 3594 synchronized (this) { 3595 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3596 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3597 if (activeAdmin.crossProfileWidgetProviders == null) { 3598 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 3599 } 3600 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3601 if (!providers.contains(packageName)) { 3602 providers.add(packageName); 3603 changedProviders = new ArrayList<>(providers); 3604 saveSettingsLocked(userId); 3605 } 3606 } 3607 3608 if (changedProviders != null) { 3609 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3610 return true; 3611 } 3612 3613 return false; 3614 } 3615 3616 @Override 3617 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3618 final int userId = UserHandle.getCallingUserId(); 3619 List<String> changedProviders = null; 3620 3621 synchronized (this) { 3622 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3623 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3624 if (activeAdmin.crossProfileWidgetProviders == null 3625 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3626 return false; 3627 } 3628 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3629 if (providers.remove(packageName)) { 3630 changedProviders = new ArrayList<>(providers); 3631 saveSettingsLocked(userId); 3632 } 3633 } 3634 3635 if (changedProviders != null) { 3636 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3637 return true; 3638 } 3639 3640 return false; 3641 } 3642 3643 @Override 3644 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 3645 synchronized (this) { 3646 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3647 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3648 if (activeAdmin.crossProfileWidgetProviders == null 3649 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3650 return null; 3651 } 3652 if (mInjector.binderIsCallingUidMyUid()) { 3653 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 3654 } else { 3655 return activeAdmin.crossProfileWidgetProviders; 3656 } 3657 } 3658 } 3659 3660 /** 3661 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 3662 * Returns 0 if not configured. 3663 */ 3664 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 3665 long timeout = 0L; 3666 3667 if (who != null) { 3668 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3669 return admin != null ? admin.passwordExpirationDate : timeout; 3670 } 3671 3672 // Return the strictest policy across all participating admins. 3673 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3674 final int N = admins.size(); 3675 for (int i = 0; i < N; i++) { 3676 ActiveAdmin admin = admins.get(i); 3677 if (timeout == 0L || (admin.passwordExpirationDate != 0 3678 && timeout > admin.passwordExpirationDate)) { 3679 timeout = admin.passwordExpirationDate; 3680 } 3681 } 3682 return timeout; 3683 } 3684 3685 @Override 3686 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 3687 if (!mHasFeature) { 3688 return 0L; 3689 } 3690 enforceFullCrossUsersPermission(userHandle); 3691 synchronized (this) { 3692 return getPasswordExpirationLocked(who, userHandle, parent); 3693 } 3694 } 3695 3696 @Override 3697 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 3698 if (!mHasFeature) { 3699 return; 3700 } 3701 Preconditions.checkNotNull(who, "ComponentName is null"); 3702 synchronized (this) { 3703 ActiveAdmin ap = getActiveAdminForCallerLocked( 3704 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3705 if (ap.minimumPasswordMetrics.upperCase != length) { 3706 ap.minimumPasswordMetrics.upperCase = length; 3707 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3708 } 3709 } 3710 } 3711 3712 @Override 3713 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 3714 if (!mHasFeature) { 3715 return 0; 3716 } 3717 enforceFullCrossUsersPermission(userHandle); 3718 synchronized (this) { 3719 int length = 0; 3720 3721 if (who != null) { 3722 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3723 return admin != null ? admin.minimumPasswordMetrics.upperCase : length; 3724 } 3725 3726 // Return the strictest policy across all participating admins. 3727 List<ActiveAdmin> admins = 3728 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3729 final int N = admins.size(); 3730 for (int i = 0; i < N; i++) { 3731 ActiveAdmin admin = admins.get(i); 3732 if (length < admin.minimumPasswordMetrics.upperCase) { 3733 length = admin.minimumPasswordMetrics.upperCase; 3734 } 3735 } 3736 return length; 3737 } 3738 } 3739 3740 @Override 3741 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 3742 Preconditions.checkNotNull(who, "ComponentName is null"); 3743 synchronized (this) { 3744 ActiveAdmin ap = getActiveAdminForCallerLocked( 3745 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3746 if (ap.minimumPasswordMetrics.lowerCase != length) { 3747 ap.minimumPasswordMetrics.lowerCase = length; 3748 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3749 } 3750 } 3751 } 3752 3753 @Override 3754 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 3755 if (!mHasFeature) { 3756 return 0; 3757 } 3758 enforceFullCrossUsersPermission(userHandle); 3759 synchronized (this) { 3760 int length = 0; 3761 3762 if (who != null) { 3763 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3764 return admin != null ? admin.minimumPasswordMetrics.lowerCase : length; 3765 } 3766 3767 // Return the strictest policy across all participating admins. 3768 List<ActiveAdmin> admins = 3769 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3770 final int N = admins.size(); 3771 for (int i = 0; i < N; i++) { 3772 ActiveAdmin admin = admins.get(i); 3773 if (length < admin.minimumPasswordMetrics.lowerCase) { 3774 length = admin.minimumPasswordMetrics.lowerCase; 3775 } 3776 } 3777 return length; 3778 } 3779 } 3780 3781 @Override 3782 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 3783 if (!mHasFeature) { 3784 return; 3785 } 3786 Preconditions.checkNotNull(who, "ComponentName is null"); 3787 synchronized (this) { 3788 ActiveAdmin ap = getActiveAdminForCallerLocked( 3789 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3790 if (ap.minimumPasswordMetrics.letters != length) { 3791 ap.minimumPasswordMetrics.letters = length; 3792 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3793 } 3794 } 3795 } 3796 3797 @Override 3798 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 3799 if (!mHasFeature) { 3800 return 0; 3801 } 3802 enforceFullCrossUsersPermission(userHandle); 3803 synchronized (this) { 3804 int length = 0; 3805 3806 if (who != null) { 3807 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3808 return admin != null ? admin.minimumPasswordMetrics.letters : length; 3809 } 3810 3811 // Return the strictest policy across all participating admins. 3812 List<ActiveAdmin> admins = 3813 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3814 final int N = admins.size(); 3815 for (int i = 0; i < N; i++) { 3816 ActiveAdmin admin = admins.get(i); 3817 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3818 continue; 3819 } 3820 if (length < admin.minimumPasswordMetrics.letters) { 3821 length = admin.minimumPasswordMetrics.letters; 3822 } 3823 } 3824 return length; 3825 } 3826 } 3827 3828 @Override 3829 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 3830 if (!mHasFeature) { 3831 return; 3832 } 3833 Preconditions.checkNotNull(who, "ComponentName is null"); 3834 synchronized (this) { 3835 ActiveAdmin ap = getActiveAdminForCallerLocked( 3836 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3837 if (ap.minimumPasswordMetrics.numeric != length) { 3838 ap.minimumPasswordMetrics.numeric = length; 3839 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3840 } 3841 } 3842 } 3843 3844 @Override 3845 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 3846 if (!mHasFeature) { 3847 return 0; 3848 } 3849 enforceFullCrossUsersPermission(userHandle); 3850 synchronized (this) { 3851 int length = 0; 3852 3853 if (who != null) { 3854 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3855 return admin != null ? admin.minimumPasswordMetrics.numeric : length; 3856 } 3857 3858 // Return the strictest policy across all participating admins. 3859 List<ActiveAdmin> admins = 3860 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3861 final int N = admins.size(); 3862 for (int i = 0; i < N; i++) { 3863 ActiveAdmin admin = admins.get(i); 3864 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3865 continue; 3866 } 3867 if (length < admin.minimumPasswordMetrics.numeric) { 3868 length = admin.minimumPasswordMetrics.numeric; 3869 } 3870 } 3871 return length; 3872 } 3873 } 3874 3875 @Override 3876 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 3877 if (!mHasFeature) { 3878 return; 3879 } 3880 Preconditions.checkNotNull(who, "ComponentName is null"); 3881 synchronized (this) { 3882 ActiveAdmin ap = getActiveAdminForCallerLocked( 3883 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3884 if (ap.minimumPasswordMetrics.symbols != length) { 3885 ap.minimumPasswordMetrics.symbols = length; 3886 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3887 } 3888 } 3889 } 3890 3891 @Override 3892 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 3893 if (!mHasFeature) { 3894 return 0; 3895 } 3896 enforceFullCrossUsersPermission(userHandle); 3897 synchronized (this) { 3898 int length = 0; 3899 3900 if (who != null) { 3901 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3902 return admin != null ? admin.minimumPasswordMetrics.symbols : length; 3903 } 3904 3905 // Return the strictest policy across all participating admins. 3906 List<ActiveAdmin> admins = 3907 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3908 final int N = admins.size(); 3909 for (int i = 0; i < N; i++) { 3910 ActiveAdmin admin = admins.get(i); 3911 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3912 continue; 3913 } 3914 if (length < admin.minimumPasswordMetrics.symbols) { 3915 length = admin.minimumPasswordMetrics.symbols; 3916 } 3917 } 3918 return length; 3919 } 3920 } 3921 3922 @Override 3923 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 3924 if (!mHasFeature) { 3925 return; 3926 } 3927 Preconditions.checkNotNull(who, "ComponentName is null"); 3928 synchronized (this) { 3929 ActiveAdmin ap = getActiveAdminForCallerLocked( 3930 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3931 if (ap.minimumPasswordMetrics.nonLetter != length) { 3932 ap.minimumPasswordMetrics.nonLetter = length; 3933 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3934 } 3935 } 3936 } 3937 3938 @Override 3939 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 3940 if (!mHasFeature) { 3941 return 0; 3942 } 3943 enforceFullCrossUsersPermission(userHandle); 3944 synchronized (this) { 3945 int length = 0; 3946 3947 if (who != null) { 3948 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3949 return admin != null ? admin.minimumPasswordMetrics.nonLetter : length; 3950 } 3951 3952 // Return the strictest policy across all participating admins. 3953 List<ActiveAdmin> admins = 3954 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3955 final int N = admins.size(); 3956 for (int i = 0; i < N; i++) { 3957 ActiveAdmin admin = admins.get(i); 3958 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3959 continue; 3960 } 3961 if (length < admin.minimumPasswordMetrics.nonLetter) { 3962 length = admin.minimumPasswordMetrics.nonLetter; 3963 } 3964 } 3965 return length; 3966 } 3967 } 3968 3969 @Override 3970 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 3971 if (!mHasFeature) { 3972 return true; 3973 } 3974 enforceFullCrossUsersPermission(userHandle); 3975 3976 synchronized (this) { 3977 // This API can only be called by an active device admin, 3978 // so try to retrieve it to check that the caller is one. 3979 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3980 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3981 return isActivePasswordSufficientForUserLocked(policy, userHandle, parent); 3982 } 3983 } 3984 3985 @Override 3986 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 3987 if (!mHasFeature) { 3988 return true; 3989 } 3990 enforceFullCrossUsersPermission(userHandle); 3991 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 3992 3993 synchronized (this) { 3994 int targetUser = getProfileParentId(userHandle); 3995 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false)); 3996 return isActivePasswordSufficientForUserLocked(policy, targetUser, false); 3997 } 3998 } 3999 4000 private boolean isActivePasswordSufficientForUserLocked( 4001 DevicePolicyData policy, int userHandle, boolean parent) { 4002 enforceUserUnlocked(userHandle, parent); 4003 4004 final int requiredPasswordQuality = getPasswordQuality(null, userHandle, parent); 4005 if (policy.mActivePasswordMetrics.quality < requiredPasswordQuality) { 4006 return false; 4007 } 4008 if (requiredPasswordQuality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC 4009 && policy.mActivePasswordMetrics.length < getPasswordMinimumLength( 4010 null, userHandle, parent)) { 4011 return false; 4012 } 4013 if (requiredPasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4014 return true; 4015 } 4016 return policy.mActivePasswordMetrics.upperCase >= getPasswordMinimumUpperCase( 4017 null, userHandle, parent) 4018 && policy.mActivePasswordMetrics.lowerCase >= getPasswordMinimumLowerCase( 4019 null, userHandle, parent) 4020 && policy.mActivePasswordMetrics.letters >= getPasswordMinimumLetters( 4021 null, userHandle, parent) 4022 && policy.mActivePasswordMetrics.numeric >= getPasswordMinimumNumeric( 4023 null, userHandle, parent) 4024 && policy.mActivePasswordMetrics.symbols >= getPasswordMinimumSymbols( 4025 null, userHandle, parent) 4026 && policy.mActivePasswordMetrics.nonLetter >= getPasswordMinimumNonLetter( 4027 null, userHandle, parent); 4028 } 4029 4030 @Override 4031 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 4032 enforceFullCrossUsersPermission(userHandle); 4033 synchronized (this) { 4034 if (!isCallerWithSystemUid()) { 4035 // This API can only be called by an active device admin, 4036 // so try to retrieve it to check that the caller is one. 4037 getActiveAdminForCallerLocked( 4038 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4039 } 4040 4041 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 4042 4043 return policy.mFailedPasswordAttempts; 4044 } 4045 } 4046 4047 @Override 4048 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 4049 if (!mHasFeature) { 4050 return; 4051 } 4052 Preconditions.checkNotNull(who, "ComponentName is null"); 4053 synchronized (this) { 4054 // This API can only be called by an active device admin, 4055 // so try to retrieve it to check that the caller is one. 4056 getActiveAdminForCallerLocked( 4057 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 4058 ActiveAdmin ap = getActiveAdminForCallerLocked( 4059 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4060 if (ap.maximumFailedPasswordsForWipe != num) { 4061 ap.maximumFailedPasswordsForWipe = num; 4062 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4063 } 4064 } 4065 } 4066 4067 @Override 4068 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 4069 if (!mHasFeature) { 4070 return 0; 4071 } 4072 enforceFullCrossUsersPermission(userHandle); 4073 synchronized (this) { 4074 ActiveAdmin admin = (who != null) 4075 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 4076 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 4077 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 4078 } 4079 } 4080 4081 @Override 4082 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 4083 if (!mHasFeature) { 4084 return UserHandle.USER_NULL; 4085 } 4086 enforceFullCrossUsersPermission(userHandle); 4087 synchronized (this) { 4088 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4089 userHandle, parent); 4090 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 4091 } 4092 } 4093 4094 /** 4095 * Returns the admin with the strictest policy on maximum failed passwords for: 4096 * <ul> 4097 * <li>this user if it has a separate profile challenge, or 4098 * <li>this user and all profiles that don't have their own challenge otherwise. 4099 * </ul> 4100 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 4101 * the primary profile. 4102 * Returns {@code null} if no participating admin has that policy set. 4103 */ 4104 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 4105 int userHandle, boolean parent) { 4106 int count = 0; 4107 ActiveAdmin strictestAdmin = null; 4108 4109 // Return the strictest policy across all participating admins. 4110 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4111 final int N = admins.size(); 4112 for (int i = 0; i < N; i++) { 4113 ActiveAdmin admin = admins.get(i); 4114 if (admin.maximumFailedPasswordsForWipe == 4115 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 4116 continue; // No max number of failed passwords policy set for this profile. 4117 } 4118 4119 // We always favor the primary profile if several profiles have the same value set. 4120 int userId = admin.getUserHandle().getIdentifier(); 4121 if (count == 0 || 4122 count > admin.maximumFailedPasswordsForWipe || 4123 (count == admin.maximumFailedPasswordsForWipe && 4124 getUserInfo(userId).isPrimary())) { 4125 count = admin.maximumFailedPasswordsForWipe; 4126 strictestAdmin = admin; 4127 } 4128 } 4129 return strictestAdmin; 4130 } 4131 4132 private UserInfo getUserInfo(@UserIdInt int userId) { 4133 final long token = mInjector.binderClearCallingIdentity(); 4134 try { 4135 return mUserManager.getUserInfo(userId); 4136 } finally { 4137 mInjector.binderRestoreCallingIdentity(token); 4138 } 4139 } 4140 @Override 4141 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 4142 final int callingUid = mInjector.binderGetCallingUid(); 4143 final int userHandle = mInjector.userHandleGetCallingUserId(); 4144 4145 String password = passwordOrNull != null ? passwordOrNull : ""; 4146 4147 // Password resetting to empty/null is not allowed for managed profiles. 4148 if (TextUtils.isEmpty(password)) { 4149 enforceNotManagedProfile(userHandle, "clear the active password"); 4150 } 4151 4152 synchronized (this) { 4153 // If caller has PO (or DO) it can change the password, so see if that's the case first. 4154 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 4155 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 4156 final boolean preN; 4157 if (admin != null) { 4158 final int targetSdk = getTargetSdk(admin.info.getPackageName(), userHandle); 4159 if (targetSdk >= Build.VERSION_CODES.O) { 4160 throw new SecurityException("resetPassword() is deprecated for DPC targeting O" 4161 + " or later"); 4162 } 4163 preN = targetSdk <= android.os.Build.VERSION_CODES.M; 4164 } else { 4165 // Otherwise, make sure the caller has any active admin with the right policy. 4166 admin = getActiveAdminForCallerLocked(null, 4167 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 4168 preN = getTargetSdk(admin.info.getPackageName(), 4169 userHandle) <= android.os.Build.VERSION_CODES.M; 4170 4171 // As of N, password resetting to empty/null is not allowed anymore. 4172 // TODO Should we allow DO/PO to set an empty password? 4173 if (TextUtils.isEmpty(password)) { 4174 if (!preN) { 4175 throw new SecurityException("Cannot call with null password"); 4176 } else { 4177 Slog.e(LOG_TAG, "Cannot call with null password"); 4178 return false; 4179 } 4180 } 4181 // As of N, password cannot be changed by the admin if it is already set. 4182 if (isLockScreenSecureUnchecked(userHandle)) { 4183 if (!preN) { 4184 throw new SecurityException("Admin cannot change current password"); 4185 } else { 4186 Slog.e(LOG_TAG, "Admin cannot change current password"); 4187 return false; 4188 } 4189 } 4190 } 4191 // Do not allow to reset password when current user has a managed profile 4192 if (!isManagedProfile(userHandle)) { 4193 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4194 if (userInfo.isManagedProfile()) { 4195 if (!preN) { 4196 throw new IllegalStateException( 4197 "Cannot reset password on user has managed profile"); 4198 } else { 4199 Slog.e(LOG_TAG, "Cannot reset password on user has managed profile"); 4200 return false; 4201 } 4202 } 4203 } 4204 } 4205 // Do not allow to reset password when user is locked 4206 if (!mUserManager.isUserUnlocked(userHandle)) { 4207 if (!preN) { 4208 throw new IllegalStateException("Cannot reset password when user is locked"); 4209 } else { 4210 Slog.e(LOG_TAG, "Cannot reset password when user is locked"); 4211 return false; 4212 } 4213 } 4214 } 4215 4216 return resetPasswordInternal(password, 0, null, flags, callingUid, userHandle); 4217 } 4218 4219 private boolean resetPasswordInternal(String password, long tokenHandle, byte[] token, 4220 int flags, int callingUid, int userHandle) { 4221 int quality; 4222 synchronized (this) { 4223 quality = getPasswordQuality(null, userHandle, /* parent */ false); 4224 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 4225 quality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 4226 } 4227 final PasswordMetrics metrics = PasswordMetrics.computeForPassword(password); 4228 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 4229 final int realQuality = metrics.quality; 4230 if (realQuality < quality 4231 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4232 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 4233 + Integer.toHexString(realQuality) 4234 + " does not meet required quality 0x" 4235 + Integer.toHexString(quality)); 4236 return false; 4237 } 4238 quality = Math.max(realQuality, quality); 4239 } 4240 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 4241 if (password.length() < length) { 4242 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 4243 + " does not meet required length " + length); 4244 return false; 4245 } 4246 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4247 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 4248 if(metrics.letters < neededLetters) { 4249 Slog.w(LOG_TAG, "resetPassword: number of letters " + metrics.letters 4250 + " does not meet required number of letters " + neededLetters); 4251 return false; 4252 } 4253 int neededNumeric = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 4254 if (metrics.numeric < neededNumeric) { 4255 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + metrics.numeric 4256 + " does not meet required number of numerical digits " 4257 + neededNumeric); 4258 return false; 4259 } 4260 int neededLowerCase = getPasswordMinimumLowerCase( 4261 null, userHandle, /* parent */ false); 4262 if (metrics.lowerCase < neededLowerCase) { 4263 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " 4264 + metrics.lowerCase 4265 + " does not meet required number of lowercase letters " 4266 + neededLowerCase); 4267 return false; 4268 } 4269 int neededUpperCase = getPasswordMinimumUpperCase( 4270 null, userHandle, /* parent */ false); 4271 if (metrics.upperCase < neededUpperCase) { 4272 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " 4273 + metrics.upperCase 4274 + " does not meet required number of uppercase letters " 4275 + neededUpperCase); 4276 return false; 4277 } 4278 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 4279 if (metrics.symbols < neededSymbols) { 4280 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + metrics.symbols 4281 + " does not meet required number of special symbols " + neededSymbols); 4282 return false; 4283 } 4284 int neededNonLetter = getPasswordMinimumNonLetter( 4285 null, userHandle, /* parent */ false); 4286 if (metrics.nonLetter < neededNonLetter) { 4287 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " 4288 + metrics.nonLetter 4289 + " does not meet required number of non-letter characters " 4290 + neededNonLetter); 4291 return false; 4292 } 4293 } 4294 } 4295 4296 DevicePolicyData policy = getUserData(userHandle); 4297 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 4298 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 4299 return false; 4300 } 4301 4302 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 4303 boolean doNotAskCredentialsOnBoot = 4304 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 4305 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 4306 setDoNotAskCredentialsOnBoot(); 4307 } 4308 4309 // Don't do this with the lock held, because it is going to call 4310 // back in to the service. 4311 final long ident = mInjector.binderClearCallingIdentity(); 4312 final boolean result; 4313 try { 4314 if (token == null) { 4315 if (!TextUtils.isEmpty(password)) { 4316 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 4317 } else { 4318 mLockPatternUtils.clearLock(null, userHandle); 4319 } 4320 result = true; 4321 } else { 4322 result = mLockPatternUtils.setLockCredentialWithToken(password, 4323 TextUtils.isEmpty(password) ? LockPatternUtils.CREDENTIAL_TYPE_NONE 4324 : LockPatternUtils.CREDENTIAL_TYPE_PASSWORD, 4325 tokenHandle, token, userHandle); 4326 } 4327 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 4328 if (requireEntry) { 4329 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 4330 UserHandle.USER_ALL); 4331 } 4332 synchronized (this) { 4333 int newOwner = requireEntry ? callingUid : -1; 4334 if (policy.mPasswordOwner != newOwner) { 4335 policy.mPasswordOwner = newOwner; 4336 saveSettingsLocked(userHandle); 4337 } 4338 } 4339 } finally { 4340 mInjector.binderRestoreCallingIdentity(ident); 4341 } 4342 return result; 4343 } 4344 4345 private boolean isLockScreenSecureUnchecked(int userId) { 4346 long ident = mInjector.binderClearCallingIdentity(); 4347 try { 4348 return mLockPatternUtils.isSecure(userId); 4349 } finally { 4350 mInjector.binderRestoreCallingIdentity(ident); 4351 } 4352 } 4353 4354 private void setDoNotAskCredentialsOnBoot() { 4355 synchronized (this) { 4356 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4357 if (!policyData.doNotAskCredentialsOnBoot) { 4358 policyData.doNotAskCredentialsOnBoot = true; 4359 saveSettingsLocked(UserHandle.USER_SYSTEM); 4360 } 4361 } 4362 } 4363 4364 @Override 4365 public boolean getDoNotAskCredentialsOnBoot() { 4366 mContext.enforceCallingOrSelfPermission( 4367 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 4368 synchronized (this) { 4369 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4370 return policyData.doNotAskCredentialsOnBoot; 4371 } 4372 } 4373 4374 @Override 4375 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 4376 if (!mHasFeature) { 4377 return; 4378 } 4379 Preconditions.checkNotNull(who, "ComponentName is null"); 4380 final int userHandle = mInjector.userHandleGetCallingUserId(); 4381 synchronized (this) { 4382 ActiveAdmin ap = getActiveAdminForCallerLocked( 4383 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4384 if (ap.maximumTimeToUnlock != timeMs) { 4385 ap.maximumTimeToUnlock = timeMs; 4386 saveSettingsLocked(userHandle); 4387 updateMaximumTimeToLockLocked(userHandle); 4388 } 4389 } 4390 } 4391 4392 void updateMaximumTimeToLockLocked(int userHandle) { 4393 // Calculate the min timeout for all profiles - including the ones with a separate 4394 // challenge. Ideally if the timeout only affected the profile challenge we'd lock that 4395 // challenge only and keep the screen on. However there is no easy way of doing that at the 4396 // moment so we set the screen off timeout regardless of whether it affects the parent user 4397 // or the profile challenge only. 4398 long timeMs = Long.MAX_VALUE; 4399 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 4400 for (int profileId : profileIds) { 4401 DevicePolicyData policy = getUserDataUnchecked(profileId); 4402 final int N = policy.mAdminList.size(); 4403 for (int i = 0; i < N; i++) { 4404 ActiveAdmin admin = policy.mAdminList.get(i); 4405 if (admin.maximumTimeToUnlock > 0 4406 && timeMs > admin.maximumTimeToUnlock) { 4407 timeMs = admin.maximumTimeToUnlock; 4408 } 4409 // If userInfo.id is a managed profile, we also need to look at 4410 // the policies set on the parent. 4411 if (admin.hasParentActiveAdmin()) { 4412 final ActiveAdmin parentAdmin = admin.getParentActiveAdmin(); 4413 if (parentAdmin.maximumTimeToUnlock > 0 4414 && timeMs > parentAdmin.maximumTimeToUnlock) { 4415 timeMs = parentAdmin.maximumTimeToUnlock; 4416 } 4417 } 4418 } 4419 } 4420 4421 // We only store the last maximum time to lock on the parent profile. So if calling from a 4422 // managed profile, retrieve the policy for the parent. 4423 DevicePolicyData policy = getUserDataUnchecked(getProfileParentId(userHandle)); 4424 if (policy.mLastMaximumTimeToLock == timeMs) { 4425 return; 4426 } 4427 policy.mLastMaximumTimeToLock = timeMs; 4428 4429 final long ident = mInjector.binderClearCallingIdentity(); 4430 try { 4431 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 4432 // Make sure KEEP_SCREEN_ON is disabled, since that 4433 // would allow bypassing of the maximum time to lock. 4434 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 4435 } 4436 4437 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4438 (int) Math.min(policy.mLastMaximumTimeToLock, Integer.MAX_VALUE)); 4439 } finally { 4440 mInjector.binderRestoreCallingIdentity(ident); 4441 } 4442 } 4443 4444 @Override 4445 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 4446 if (!mHasFeature) { 4447 return 0; 4448 } 4449 enforceFullCrossUsersPermission(userHandle); 4450 synchronized (this) { 4451 if (who != null) { 4452 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4453 return admin != null ? admin.maximumTimeToUnlock : 0; 4454 } 4455 // Return the strictest policy across all participating admins. 4456 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4457 userHandle, parent); 4458 return getMaximumTimeToLockPolicyFromAdmins(admins); 4459 } 4460 } 4461 4462 @Override 4463 public long getMaximumTimeToLockForUserAndProfiles(int userHandle) { 4464 if (!mHasFeature) { 4465 return 0; 4466 } 4467 enforceFullCrossUsersPermission(userHandle); 4468 synchronized (this) { 4469 // All admins for this user. 4470 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 4471 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4472 DevicePolicyData policy = getUserData(userInfo.id); 4473 admins.addAll(policy.mAdminList); 4474 // If it is a managed profile, it may have parent active admins 4475 if (userInfo.isManagedProfile()) { 4476 for (ActiveAdmin admin : policy.mAdminList) { 4477 if (admin.hasParentActiveAdmin()) { 4478 admins.add(admin.getParentActiveAdmin()); 4479 } 4480 } 4481 } 4482 } 4483 return getMaximumTimeToLockPolicyFromAdmins(admins); 4484 } 4485 } 4486 4487 private long getMaximumTimeToLockPolicyFromAdmins(List<ActiveAdmin> admins) { 4488 long time = 0; 4489 final int N = admins.size(); 4490 for (int i = 0; i < N; i++) { 4491 ActiveAdmin admin = admins.get(i); 4492 if (time == 0) { 4493 time = admin.maximumTimeToUnlock; 4494 } else if (admin.maximumTimeToUnlock != 0 4495 && time > admin.maximumTimeToUnlock) { 4496 time = admin.maximumTimeToUnlock; 4497 } 4498 } 4499 return time; 4500 } 4501 4502 @Override 4503 public void setRequiredStrongAuthTimeout(ComponentName who, long timeoutMs, 4504 boolean parent) { 4505 if (!mHasFeature) { 4506 return; 4507 } 4508 Preconditions.checkNotNull(who, "ComponentName is null"); 4509 Preconditions.checkArgument(timeoutMs >= 0, "Timeout must not be a negative number."); 4510 // timeoutMs with value 0 means that the admin doesn't participate 4511 // timeoutMs is clamped to the interval in case the internal constants change in the future 4512 final long minimumStrongAuthTimeout = getMinimumStrongAuthTimeoutMs(); 4513 if (timeoutMs != 0 && timeoutMs < minimumStrongAuthTimeout) { 4514 timeoutMs = minimumStrongAuthTimeout; 4515 } 4516 if (timeoutMs > DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 4517 timeoutMs = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4518 } 4519 4520 final int userHandle = mInjector.userHandleGetCallingUserId(); 4521 synchronized (this) { 4522 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4523 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 4524 if (ap.strongAuthUnlockTimeout != timeoutMs) { 4525 ap.strongAuthUnlockTimeout = timeoutMs; 4526 saveSettingsLocked(userHandle); 4527 } 4528 } 4529 } 4530 4531 /** 4532 * Return a single admin's strong auth unlock timeout or minimum value (strictest) of all 4533 * admins if who is null. 4534 * Returns 0 if not configured for the provided admin. 4535 */ 4536 @Override 4537 public long getRequiredStrongAuthTimeout(ComponentName who, int userId, boolean parent) { 4538 if (!mHasFeature) { 4539 return DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4540 } 4541 enforceFullCrossUsersPermission(userId); 4542 synchronized (this) { 4543 if (who != null) { 4544 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId, parent); 4545 return admin != null ? admin.strongAuthUnlockTimeout : 0; 4546 } 4547 4548 // Return the strictest policy across all participating admins. 4549 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userId, parent); 4550 4551 long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4552 for (int i = 0; i < admins.size(); i++) { 4553 final long timeout = admins.get(i).strongAuthUnlockTimeout; 4554 if (timeout != 0) { // take only participating admins into account 4555 strongAuthUnlockTimeout = Math.min(timeout, strongAuthUnlockTimeout); 4556 } 4557 } 4558 return Math.max(strongAuthUnlockTimeout, getMinimumStrongAuthTimeoutMs()); 4559 } 4560 } 4561 4562 private long getMinimumStrongAuthTimeoutMs() { 4563 if (!mInjector.isBuildDebuggable()) { 4564 return MINIMUM_STRONG_AUTH_TIMEOUT_MS; 4565 } 4566 // ideally the property was named persist.sys.min_strong_auth_timeout, but system property 4567 // name cannot be longer than 31 characters 4568 return Math.min(mInjector.systemPropertiesGetLong("persist.sys.min_str_auth_timeo", 4569 MINIMUM_STRONG_AUTH_TIMEOUT_MS), 4570 MINIMUM_STRONG_AUTH_TIMEOUT_MS); 4571 } 4572 4573 @Override 4574 public void lockNow(int flags, boolean parent) { 4575 if (!mHasFeature) { 4576 return; 4577 } 4578 4579 final int callingUserId = mInjector.userHandleGetCallingUserId(); 4580 synchronized (this) { 4581 // This API can only be called by an active device admin, 4582 // so try to retrieve it to check that the caller is one. 4583 final ActiveAdmin admin = getActiveAdminForCallerLocked( 4584 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4585 4586 final long ident = mInjector.binderClearCallingIdentity(); 4587 try { 4588 // Evict key 4589 if ((flags & DevicePolicyManager.FLAG_EVICT_CE_KEY) != 0) { 4590 enforceManagedProfile(callingUserId, "set FLAG_EVICT_CE_KEY"); 4591 if (!isProfileOwner(admin.info.getComponent(), callingUserId)) { 4592 throw new SecurityException( 4593 "Only profile owner admins can set FLAG_EVICT_CE_KEY"); 4594 } 4595 if (parent) { 4596 throw new IllegalArgumentException( 4597 "Cannot set FLAG_EVICT_CE_KEY for the parent"); 4598 } 4599 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 4600 throw new UnsupportedOperationException( 4601 "FLAG_EVICT_CE_KEY only applies to FBE devices"); 4602 } 4603 mUserManager.evictCredentialEncryptionKey(callingUserId); 4604 } 4605 4606 // Lock all users unless this is a managed profile with a separate challenge 4607 final int userToLock = (parent || !isSeparateProfileChallengeEnabled(callingUserId) 4608 ? UserHandle.USER_ALL : callingUserId); 4609 mLockPatternUtils.requireStrongAuth( 4610 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 4611 4612 // Require authentication for the device or profile 4613 if (userToLock == UserHandle.USER_ALL) { 4614 // Power off the display 4615 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 4616 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 4617 mInjector.getIWindowManager().lockNow(null); 4618 } else { 4619 mInjector.getTrustManager().setDeviceLockedForUser(userToLock, true); 4620 } 4621 } catch (RemoteException e) { 4622 } finally { 4623 mInjector.binderRestoreCallingIdentity(ident); 4624 } 4625 } 4626 } 4627 4628 @Override 4629 public void enforceCanManageCaCerts(ComponentName who, String callerPackage) { 4630 if (who == null) { 4631 if (!isCallerDelegate(callerPackage, DELEGATION_CERT_INSTALL)) { 4632 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 4633 } 4634 } else { 4635 enforceProfileOrDeviceOwner(who); 4636 } 4637 } 4638 4639 private void enforceProfileOrDeviceOwner(ComponentName who) { 4640 synchronized (this) { 4641 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4642 } 4643 } 4644 4645 @Override 4646 public boolean approveCaCert(String alias, int userId, boolean approval) { 4647 enforceManageUsers(); 4648 synchronized (this) { 4649 Set<String> certs = getUserData(userId).mAcceptedCaCertificates; 4650 boolean changed = (approval ? certs.add(alias) : certs.remove(alias)); 4651 if (!changed) { 4652 return false; 4653 } 4654 saveSettingsLocked(userId); 4655 } 4656 new MonitoringCertNotificationTask(this, mInjector).execute(userId); 4657 return true; 4658 } 4659 4660 @Override 4661 public boolean isCaCertApproved(String alias, int userId) { 4662 enforceManageUsers(); 4663 synchronized (this) { 4664 return getUserData(userId).mAcceptedCaCertificates.contains(alias); 4665 } 4666 } 4667 4668 private void removeCaApprovalsIfNeeded(int userId) { 4669 for (UserInfo userInfo : mUserManager.getProfiles(userId)) { 4670 boolean isSecure = mLockPatternUtils.isSecure(userInfo.id); 4671 if (userInfo.isManagedProfile()){ 4672 isSecure |= mLockPatternUtils.isSecure(getProfileParentId(userInfo.id)); 4673 } 4674 if (!isSecure) { 4675 synchronized (this) { 4676 getUserData(userInfo.id).mAcceptedCaCertificates.clear(); 4677 saveSettingsLocked(userInfo.id); 4678 } 4679 4680 new MonitoringCertNotificationTask(this, mInjector).execute(userInfo.id); 4681 } 4682 } 4683 } 4684 4685 @Override 4686 public boolean installCaCert(ComponentName admin, String callerPackage, byte[] certBuffer) 4687 throws RemoteException { 4688 enforceCanManageCaCerts(admin, callerPackage); 4689 4690 byte[] pemCert; 4691 try { 4692 X509Certificate cert = parseCert(certBuffer); 4693 pemCert = Credentials.convertToPem(cert); 4694 } catch (CertificateException ce) { 4695 Log.e(LOG_TAG, "Problem converting cert", ce); 4696 return false; 4697 } catch (IOException ioe) { 4698 Log.e(LOG_TAG, "Problem reading cert", ioe); 4699 return false; 4700 } 4701 4702 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4703 final long id = mInjector.binderClearCallingIdentity(); 4704 try { 4705 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4706 try { 4707 keyChainConnection.getService().installCaCertificate(pemCert); 4708 return true; 4709 } catch (RemoteException e) { 4710 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 4711 } finally { 4712 keyChainConnection.close(); 4713 } 4714 } catch (InterruptedException e1) { 4715 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 4716 Thread.currentThread().interrupt(); 4717 } finally { 4718 mInjector.binderRestoreCallingIdentity(id); 4719 } 4720 return false; 4721 } 4722 4723 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 4724 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 4725 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 4726 certBuffer)); 4727 } 4728 4729 @Override 4730 public void uninstallCaCerts(ComponentName admin, String callerPackage, String[] aliases) { 4731 enforceCanManageCaCerts(admin, callerPackage); 4732 4733 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4734 final long id = mInjector.binderClearCallingIdentity(); 4735 try { 4736 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4737 try { 4738 for (int i = 0 ; i < aliases.length; i++) { 4739 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 4740 } 4741 } catch (RemoteException e) { 4742 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 4743 } finally { 4744 keyChainConnection.close(); 4745 } 4746 } catch (InterruptedException ie) { 4747 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 4748 Thread.currentThread().interrupt(); 4749 } finally { 4750 mInjector.binderRestoreCallingIdentity(id); 4751 } 4752 } 4753 4754 @Override 4755 public boolean installKeyPair(ComponentName who, String callerPackage, byte[] privKey, 4756 byte[] cert, byte[] chain, String alias, boolean requestAccess) { 4757 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 4758 DELEGATION_CERT_INSTALL); 4759 4760 4761 final int callingUid = mInjector.binderGetCallingUid(); 4762 final long id = mInjector.binderClearCallingIdentity(); 4763 try { 4764 final KeyChainConnection keyChainConnection = 4765 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 4766 try { 4767 IKeyChainService keyChain = keyChainConnection.getService(); 4768 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) { 4769 return false; 4770 } 4771 if (requestAccess) { 4772 keyChain.setGrant(callingUid, alias, true); 4773 } 4774 return true; 4775 } catch (RemoteException e) { 4776 Log.e(LOG_TAG, "Installing certificate", e); 4777 } finally { 4778 keyChainConnection.close(); 4779 } 4780 } catch (InterruptedException e) { 4781 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 4782 Thread.currentThread().interrupt(); 4783 } finally { 4784 mInjector.binderRestoreCallingIdentity(id); 4785 } 4786 return false; 4787 } 4788 4789 @Override 4790 public boolean removeKeyPair(ComponentName who, String callerPackage, String alias) { 4791 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 4792 DELEGATION_CERT_INSTALL); 4793 4794 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4795 final long id = Binder.clearCallingIdentity(); 4796 try { 4797 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4798 try { 4799 IKeyChainService keyChain = keyChainConnection.getService(); 4800 return keyChain.removeKeyPair(alias); 4801 } catch (RemoteException e) { 4802 Log.e(LOG_TAG, "Removing keypair", e); 4803 } finally { 4804 keyChainConnection.close(); 4805 } 4806 } catch (InterruptedException e) { 4807 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 4808 Thread.currentThread().interrupt(); 4809 } finally { 4810 Binder.restoreCallingIdentity(id); 4811 } 4812 return false; 4813 } 4814 4815 @Override 4816 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 4817 final IBinder response) { 4818 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 4819 if (!isCallerWithSystemUid()) { 4820 return; 4821 } 4822 4823 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 4824 // If there is a profile owner, redirect to that; otherwise query the device owner. 4825 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 4826 if (aliasChooser == null && caller.isSystem()) { 4827 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 4828 if (deviceOwnerAdmin != null) { 4829 aliasChooser = deviceOwnerAdmin.info.getComponent(); 4830 } 4831 } 4832 if (aliasChooser == null) { 4833 sendPrivateKeyAliasResponse(null, response); 4834 return; 4835 } 4836 4837 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 4838 intent.setComponent(aliasChooser); 4839 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 4840 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 4841 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 4842 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 4843 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4844 4845 final long id = mInjector.binderClearCallingIdentity(); 4846 try { 4847 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 4848 @Override 4849 public void onReceive(Context context, Intent intent) { 4850 final String chosenAlias = getResultData(); 4851 sendPrivateKeyAliasResponse(chosenAlias, response); 4852 } 4853 }, null, Activity.RESULT_OK, null, null); 4854 } finally { 4855 mInjector.binderRestoreCallingIdentity(id); 4856 } 4857 } 4858 4859 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 4860 final IKeyChainAliasCallback keyChainAliasResponse = 4861 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 4862 new AsyncTask<Void, Void, Void>() { 4863 @Override 4864 protected Void doInBackground(Void... unused) { 4865 try { 4866 keyChainAliasResponse.alias(alias); 4867 } catch (Exception e) { 4868 // Catch everything (not just RemoteException): caller could throw a 4869 // RuntimeException back across processes. 4870 Log.e(LOG_TAG, "error while responding to callback", e); 4871 } 4872 return null; 4873 } 4874 }.execute(); 4875 } 4876 4877 /** 4878 * Set the scopes of a device owner or profile owner delegate. 4879 * 4880 * @param who the device owner or profile owner. 4881 * @param delegatePackage the name of the delegate package. 4882 * @param scopes the list of delegation scopes to be given to the delegate package. 4883 */ 4884 @Override 4885 public void setDelegatedScopes(ComponentName who, String delegatePackage, 4886 List<String> scopes) throws SecurityException { 4887 Preconditions.checkNotNull(who, "ComponentName is null"); 4888 Preconditions.checkStringNotEmpty(delegatePackage, "Delegate package is null or empty"); 4889 Preconditions.checkCollectionElementsNotNull(scopes, "Scopes"); 4890 // Remove possible duplicates. 4891 scopes = new ArrayList(new ArraySet(scopes)); 4892 // Ensure given scopes are valid. 4893 if (scopes.retainAll(Arrays.asList(DELEGATIONS))) { 4894 throw new IllegalArgumentException("Unexpected delegation scopes"); 4895 } 4896 4897 // Retrieve the user ID of the calling process. 4898 final int userId = mInjector.userHandleGetCallingUserId(); 4899 synchronized (this) { 4900 // Ensure calling process is device/profile owner. 4901 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4902 // Ensure the delegate is installed (skip this for DELEGATION_CERT_INSTALL in pre-N). 4903 if (scopes.size() == 1 && scopes.get(0).equals(DELEGATION_CERT_INSTALL) || 4904 getTargetSdk(who.getPackageName(), userId) >= Build.VERSION_CODES.N) { 4905 // Throw when the delegate package is not installed. 4906 if (!isPackageInstalledForUser(delegatePackage, userId)) { 4907 throw new IllegalArgumentException("Package " + delegatePackage 4908 + " is not installed on the current user"); 4909 } 4910 } 4911 4912 // Set the new delegate in user policies. 4913 final DevicePolicyData policy = getUserData(userId); 4914 if (!scopes.isEmpty()) { 4915 policy.mDelegationMap.put(delegatePackage, new ArrayList<>(scopes)); 4916 } else { 4917 // Remove any delegation info if the given scopes list is empty. 4918 policy.mDelegationMap.remove(delegatePackage); 4919 } 4920 4921 // Notify delegate package of updates. 4922 final Intent intent = new Intent( 4923 DevicePolicyManager.ACTION_APPLICATION_DELEGATION_SCOPES_CHANGED); 4924 // Only call receivers registered with Context#registerReceiver (don’t wake delegate). 4925 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 4926 // Limit components this intent resolves to to the delegate package. 4927 intent.setPackage(delegatePackage); 4928 // Include the list of delegated scopes as an extra. 4929 intent.putStringArrayListExtra(DevicePolicyManager.EXTRA_DELEGATION_SCOPES, 4930 (ArrayList<String>) scopes); 4931 // Send the broadcast. 4932 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 4933 4934 // Persist updates. 4935 saveSettingsLocked(userId); 4936 } 4937 } 4938 4939 /** 4940 * Get the delegation scopes given to a delegate package by a device owner or profile owner. 4941 * 4942 * A DO/PO can get the scopes of any package. A non DO/PO package can get its own scopes by 4943 * passing in {@code null} as the {@code who} parameter and its own name as the 4944 * {@code delegatepackage}. 4945 * 4946 * @param who the device owner or profile owner, or {@code null} if the caller is 4947 * {@code delegatePackage}. 4948 * @param delegatePackage the name of the delegate package whose scopes are to be retrieved. 4949 * @return a list of the delegation scopes currently given to {@code delegatePackage}. 4950 */ 4951 @Override 4952 @NonNull 4953 public List<String> getDelegatedScopes(ComponentName who, 4954 String delegatePackage) throws SecurityException { 4955 Preconditions.checkNotNull(delegatePackage, "Delegate package is null"); 4956 4957 // Retrieve the user ID of the calling process. 4958 final int callingUid = mInjector.binderGetCallingUid(); 4959 final int userId = UserHandle.getUserId(callingUid); 4960 synchronized (this) { 4961 // Ensure calling process is device/profile owner. 4962 if (who != null) { 4963 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4964 // Or ensure calling process is delegatePackage itself. 4965 } else { 4966 int uid = 0; 4967 try { 4968 uid = mInjector.getPackageManager() 4969 .getPackageUidAsUser(delegatePackage, userId); 4970 } catch(NameNotFoundException e) { 4971 } 4972 if (uid != callingUid) { 4973 throw new SecurityException("Caller with uid " + callingUid + " is not " 4974 + delegatePackage); 4975 } 4976 } 4977 final DevicePolicyData policy = getUserData(userId); 4978 // Retrieve the scopes assigned to delegatePackage, or null if no scope was given. 4979 final List<String> scopes = policy.mDelegationMap.get(delegatePackage); 4980 return scopes == null ? Collections.EMPTY_LIST : scopes; 4981 } 4982 } 4983 4984 /** 4985 * Get a list of packages that were given a specific delegation scopes by a device owner or 4986 * profile owner. 4987 * 4988 * @param who the device owner or profile owner. 4989 * @param scope the scope whose delegates are to be retrieved. 4990 * @return a list of the delegate packages currently given the {@code scope} delegation. 4991 */ 4992 @NonNull 4993 public List<String> getDelegatePackages(ComponentName who, String scope) 4994 throws SecurityException { 4995 Preconditions.checkNotNull(who, "ComponentName is null"); 4996 Preconditions.checkNotNull(scope, "Scope is null"); 4997 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 4998 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 4999 } 5000 5001 // Retrieve the user ID of the calling process. 5002 final int userId = mInjector.userHandleGetCallingUserId(); 5003 synchronized (this) { 5004 // Ensure calling process is device/profile owner. 5005 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5006 final DevicePolicyData policy = getUserData(userId); 5007 5008 // Create a list to hold the resulting delegate packages. 5009 final List<String> delegatePackagesWithScope = new ArrayList<>(); 5010 // Add all delegations containing scope to the result list. 5011 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5012 if (policy.mDelegationMap.valueAt(i).contains(scope)) { 5013 delegatePackagesWithScope.add(policy.mDelegationMap.keyAt(i)); 5014 } 5015 } 5016 return delegatePackagesWithScope; 5017 } 5018 } 5019 5020 /** 5021 * Check whether a caller application has been delegated a given scope via 5022 * {@link #setDelegatedScopes} to access privileged APIs on the behalf of a profile owner or 5023 * device owner. 5024 * <p> 5025 * This is done by checking that {@code callerPackage} was granted {@code scope} delegation and 5026 * then comparing the calling UID with the UID of {@code callerPackage} as reported by 5027 * {@link PackageManager#getPackageUidAsUser}. 5028 * 5029 * @param callerPackage the name of the package that is trying to invoke a function in the DPMS. 5030 * @param scope the delegation scope to be checked. 5031 * @return {@code true} if the calling process is a delegate of {@code scope}. 5032 */ 5033 private boolean isCallerDelegate(String callerPackage, String scope) { 5034 Preconditions.checkNotNull(callerPackage, "callerPackage is null"); 5035 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5036 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5037 } 5038 5039 // Retrieve the UID and user ID of the calling process. 5040 final int callingUid = mInjector.binderGetCallingUid(); 5041 final int userId = UserHandle.getUserId(callingUid); 5042 synchronized (this) { 5043 // Retrieve user policy data. 5044 final DevicePolicyData policy = getUserData(userId); 5045 // Retrieve the list of delegation scopes granted to callerPackage. 5046 final List<String> scopes = policy.mDelegationMap.get(callerPackage); 5047 // Check callingUid only if callerPackage has the required scope delegation. 5048 if (scopes != null && scopes.contains(scope)) { 5049 try { 5050 // Retrieve the expected UID for callerPackage. 5051 final int uid = mInjector.getPackageManager() 5052 .getPackageUidAsUser(callerPackage, userId); 5053 // Return true if the caller is actually callerPackage. 5054 return uid == callingUid; 5055 } catch (NameNotFoundException e) { 5056 // Ignore. 5057 } 5058 } 5059 return false; 5060 } 5061 } 5062 5063 /** 5064 * Throw a security exception if a ComponentName is given and it is not a device/profile owner 5065 * or if the calling process is not a delegate of the given scope. 5066 * 5067 * @param who the device owner of profile owner, or null if {@code callerPackage} is a 5068 * {@code scope} delegate. 5069 * @param callerPackage the name of the calling package. Required if {@code who} is 5070 * {@code null}. 5071 * @param reqPolicy the policy used in the API whose access permission is being checked. 5072 * @param scoppe the delegation scope corresponding to the API being checked. 5073 * @throws SecurityException if {@code who} is given and is not an owner for {@code reqPolicy}; 5074 * or when {@code who} is {@code null} and {@code callerPackage} is not a delegate 5075 * of {@code scope}. 5076 */ 5077 private void enforceCanManageScope(ComponentName who, String callerPackage, int reqPolicy, 5078 String scope) { 5079 // If a ComponentName is given ensure it is a device or profile owner according to policy. 5080 if (who != null) { 5081 synchronized (this) { 5082 getActiveAdminForCallerLocked(who, reqPolicy); 5083 } 5084 // If no ComponentName is given ensure calling process has scope delegation. 5085 } else if (!isCallerDelegate(callerPackage, scope)) { 5086 throw new SecurityException("Caller with uid " + mInjector.binderGetCallingUid() 5087 + " is not a delegate of scope " + scope + "."); 5088 } 5089 } 5090 5091 /** 5092 * Helper function to preserve delegation behavior pre-O when using the deprecated functions 5093 * {@code #setCertInstallerPackage} and {@code #setApplicationRestrictionsManagingPackage}. 5094 */ 5095 private void setDelegatedScopePreO(ComponentName who, 5096 String delegatePackage, String scope) { 5097 Preconditions.checkNotNull(who, "ComponentName is null"); 5098 5099 final int userId = mInjector.userHandleGetCallingUserId(); 5100 synchronized(this) { 5101 // Ensure calling process is device/profile owner. 5102 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5103 final DevicePolicyData policy = getUserData(userId); 5104 5105 if (delegatePackage != null) { 5106 // Set package as a delegate for scope if it is not already one. 5107 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5108 if (scopes == null) { 5109 scopes = new ArrayList<>(); 5110 } 5111 if (!scopes.contains(scope)) { 5112 scopes.add(scope); 5113 setDelegatedScopes(who, delegatePackage, scopes); 5114 } 5115 } 5116 5117 // Clear any existing scope delegates. 5118 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5119 final String currentPackage = policy.mDelegationMap.keyAt(i); 5120 final List<String> currentScopes = policy.mDelegationMap.valueAt(i); 5121 5122 if (!currentPackage.equals(delegatePackage) && currentScopes.remove(scope)) { 5123 setDelegatedScopes(who, currentPackage, currentScopes); 5124 } 5125 } 5126 } 5127 } 5128 5129 @Override 5130 public void setCertInstallerPackage(ComponentName who, String installerPackage) 5131 throws SecurityException { 5132 setDelegatedScopePreO(who, installerPackage, DELEGATION_CERT_INSTALL); 5133 } 5134 5135 @Override 5136 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 5137 final List<String> delegatePackages = getDelegatePackages(who, DELEGATION_CERT_INSTALL); 5138 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 5139 } 5140 5141 /** 5142 * @return {@code true} if the package is installed and set as always-on, {@code false} if it is 5143 * not installed and therefore not available. 5144 * 5145 * @throws SecurityException if the caller is not a profile or device owner. 5146 * @throws UnsupportedOperationException if the package does not support being set as always-on. 5147 */ 5148 @Override 5149 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage, boolean lockdown) 5150 throws SecurityException { 5151 enforceProfileOrDeviceOwner(admin); 5152 5153 final int userId = mInjector.userHandleGetCallingUserId(); 5154 final long token = mInjector.binderClearCallingIdentity(); 5155 try { 5156 if (vpnPackage != null && !isPackageInstalledForUser(vpnPackage, userId)) { 5157 return false; 5158 } 5159 ConnectivityManager connectivityManager = (ConnectivityManager) 5160 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5161 if (!connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage, lockdown)) { 5162 throw new UnsupportedOperationException(); 5163 } 5164 } finally { 5165 mInjector.binderRestoreCallingIdentity(token); 5166 } 5167 return true; 5168 } 5169 5170 @Override 5171 public String getAlwaysOnVpnPackage(ComponentName admin) 5172 throws SecurityException { 5173 enforceProfileOrDeviceOwner(admin); 5174 5175 final int userId = mInjector.userHandleGetCallingUserId(); 5176 final long token = mInjector.binderClearCallingIdentity(); 5177 try{ 5178 ConnectivityManager connectivityManager = (ConnectivityManager) 5179 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5180 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 5181 } finally { 5182 mInjector.binderRestoreCallingIdentity(token); 5183 } 5184 } 5185 5186 private void forceWipeDeviceNoLock(boolean wipeExtRequested, String reason) { 5187 wtfIfInLock(); 5188 5189 if (wipeExtRequested) { 5190 StorageManager sm = (StorageManager) mContext.getSystemService( 5191 Context.STORAGE_SERVICE); 5192 sm.wipeAdoptableDisks(); 5193 } 5194 try { 5195 mInjector.recoverySystemRebootWipeUserData( 5196 /*shutdown=*/ false, reason, /*force=*/ true); 5197 } catch (IOException | SecurityException e) { 5198 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 5199 } 5200 } 5201 5202 private void forceWipeUser(int userId) { 5203 try { 5204 IActivityManager am = mInjector.getIActivityManager(); 5205 if (am.getCurrentUser().id == userId) { 5206 am.switchUser(UserHandle.USER_SYSTEM); 5207 } 5208 5209 boolean userRemoved = mUserManagerInternal.removeUserEvenWhenDisallowed(userId); 5210 if (!userRemoved) { 5211 Slog.w(LOG_TAG, "Couldn't remove user " + userId); 5212 } else if (isManagedProfile(userId)) { 5213 sendWipeProfileNotification(); 5214 } 5215 } catch (RemoteException re) { 5216 // Shouldn't happen 5217 } 5218 } 5219 5220 @Override 5221 public void wipeData(int flags) { 5222 if (!mHasFeature) { 5223 return; 5224 } 5225 enforceFullCrossUsersPermission(mInjector.userHandleGetCallingUserId()); 5226 5227 final ActiveAdmin admin; 5228 synchronized (this) { 5229 admin = getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_WIPE_DATA); 5230 } 5231 String reason = "DevicePolicyManager.wipeData() from " 5232 + admin.info.getComponent().flattenToShortString(); 5233 wipeDataNoLock( 5234 admin.info.getComponent(), flags, reason, admin.getUserHandle().getIdentifier()); 5235 } 5236 5237 private void wipeDataNoLock(ComponentName admin, int flags, String reason, int userId) { 5238 wtfIfInLock(); 5239 5240 long ident = mInjector.binderClearCallingIdentity(); 5241 try { 5242 // First check whether the admin is allowed to wipe the device/user/profile. 5243 final String restriction; 5244 if (userId == UserHandle.USER_SYSTEM) { 5245 restriction = UserManager.DISALLOW_FACTORY_RESET; 5246 } else if (isManagedProfile(userId)) { 5247 restriction = UserManager.DISALLOW_REMOVE_MANAGED_PROFILE; 5248 } else { 5249 restriction = UserManager.DISALLOW_REMOVE_USER; 5250 } 5251 if (isAdminAffectedByRestriction(admin, restriction, userId)) { 5252 throw new SecurityException("Cannot wipe data. " + restriction 5253 + " restriction is set for user " + userId); 5254 } 5255 5256 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 5257 if (!isDeviceOwner(admin, userId)) { 5258 throw new SecurityException( 5259 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 5260 } 5261 PersistentDataBlockManager manager = (PersistentDataBlockManager) 5262 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 5263 if (manager != null) { 5264 manager.wipe(); 5265 } 5266 } 5267 5268 // TODO If split user is enabled and the device owner is set in the primary user 5269 // (rather than system), we should probably trigger factory reset. Current code just 5270 // removes that user (but still clears FRP...) 5271 if (userId == UserHandle.USER_SYSTEM) { 5272 forceWipeDeviceNoLock(/*wipeExtRequested=*/ (flags & WIPE_EXTERNAL_STORAGE) != 0, 5273 reason); 5274 } else { 5275 forceWipeUser(userId); 5276 } 5277 } finally { 5278 mInjector.binderRestoreCallingIdentity(ident); 5279 } 5280 } 5281 5282 private void sendWipeProfileNotification() { 5283 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 5284 Notification notification = new Notification.Builder(mContext) 5285 .setSmallIcon(android.R.drawable.stat_sys_warning) 5286 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 5287 .setContentText(contentText) 5288 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 5289 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 5290 .build(); 5291 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 5292 } 5293 5294 private void clearWipeProfileNotification() { 5295 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 5296 } 5297 5298 @Override 5299 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 5300 if (!mHasFeature) { 5301 return; 5302 } 5303 enforceFullCrossUsersPermission(userHandle); 5304 mContext.enforceCallingOrSelfPermission( 5305 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5306 5307 synchronized (this) { 5308 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 5309 if (admin == null) { 5310 result.sendResult(null); 5311 return; 5312 } 5313 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 5314 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 5315 intent.setComponent(admin.info.getComponent()); 5316 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 5317 null, new BroadcastReceiver() { 5318 @Override 5319 public void onReceive(Context context, Intent intent) { 5320 result.sendResult(getResultExtras(false)); 5321 } 5322 }, null, Activity.RESULT_OK, null, null); 5323 } 5324 } 5325 5326 @Override 5327 public void setActivePasswordState(PasswordMetrics metrics, int userHandle) { 5328 if (!mHasFeature) { 5329 return; 5330 } 5331 enforceFullCrossUsersPermission(userHandle); 5332 mContext.enforceCallingOrSelfPermission( 5333 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5334 5335 // If the managed profile doesn't have a separate password, set the metrics to default 5336 if (isManagedProfile(userHandle) && !isSeparateProfileChallengeEnabled(userHandle)) { 5337 metrics = new PasswordMetrics(); 5338 } 5339 5340 validateQualityConstant(metrics.quality); 5341 DevicePolicyData policy = getUserData(userHandle); 5342 synchronized (this) { 5343 policy.mActivePasswordMetrics = metrics; 5344 } 5345 } 5346 5347 @Override 5348 public void reportPasswordChanged(@UserIdInt int userId) { 5349 if (!mHasFeature) { 5350 return; 5351 } 5352 enforceFullCrossUsersPermission(userId); 5353 5354 // Managed Profile password can only be changed when it has a separate challenge. 5355 if (!isSeparateProfileChallengeEnabled(userId)) { 5356 enforceNotManagedProfile(userId, "set the active password"); 5357 } 5358 5359 mContext.enforceCallingOrSelfPermission( 5360 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5361 5362 DevicePolicyData policy = getUserData(userId); 5363 5364 long ident = mInjector.binderClearCallingIdentity(); 5365 try { 5366 synchronized (this) { 5367 policy.mFailedPasswordAttempts = 0; 5368 saveSettingsLocked(userId); 5369 updatePasswordExpirationsLocked(userId); 5370 setExpirationAlarmCheckLocked(mContext, userId, /* parent */ false); 5371 5372 // Send a broadcast to each profile using this password as its primary unlock. 5373 sendAdminCommandForLockscreenPoliciesLocked( 5374 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 5375 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userId); 5376 } 5377 removeCaApprovalsIfNeeded(userId); 5378 } finally { 5379 mInjector.binderRestoreCallingIdentity(ident); 5380 } 5381 } 5382 5383 /** 5384 * Called any time the device password is updated. Resets all password expiration clocks. 5385 */ 5386 private void updatePasswordExpirationsLocked(int userHandle) { 5387 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 5388 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 5389 userHandle, /* parent */ false); 5390 final int N = admins.size(); 5391 for (int i = 0; i < N; i++) { 5392 ActiveAdmin admin = admins.get(i); 5393 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 5394 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 5395 long timeout = admin.passwordExpirationTimeout; 5396 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 5397 admin.passwordExpirationDate = expiration; 5398 } 5399 } 5400 for (int affectedUserId : affectedUserIds) { 5401 saveSettingsLocked(affectedUserId); 5402 } 5403 } 5404 5405 @Override 5406 public void reportFailedPasswordAttempt(int userHandle) { 5407 enforceFullCrossUsersPermission(userHandle); 5408 if (!isSeparateProfileChallengeEnabled(userHandle)) { 5409 enforceNotManagedProfile(userHandle, 5410 "report failed password attempt if separate profile challenge is not in place"); 5411 } 5412 mContext.enforceCallingOrSelfPermission( 5413 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5414 5415 boolean wipeData = false; 5416 ActiveAdmin strictestAdmin = null; 5417 final long ident = mInjector.binderClearCallingIdentity(); 5418 try { 5419 synchronized (this) { 5420 DevicePolicyData policy = getUserData(userHandle); 5421 policy.mFailedPasswordAttempts++; 5422 saveSettingsLocked(userHandle); 5423 if (mHasFeature) { 5424 strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 5425 userHandle, /* parent */ false); 5426 int max = strictestAdmin != null 5427 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 5428 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 5429 wipeData = true; 5430 } 5431 5432 sendAdminCommandForLockscreenPoliciesLocked( 5433 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 5434 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 5435 } 5436 } 5437 } finally { 5438 mInjector.binderRestoreCallingIdentity(ident); 5439 } 5440 5441 if (wipeData && strictestAdmin != null) { 5442 final int userId = strictestAdmin.getUserHandle().getIdentifier(); 5443 Slog.i(LOG_TAG, "Max failed password attempts policy reached for admin: " 5444 + strictestAdmin.info.getComponent().flattenToShortString() 5445 + ". Calling wipeData for user " + userId); 5446 5447 // Attempt to wipe the device/user/profile associated with the admin, as if the 5448 // admin had called wipeData(). That way we can check whether the admin is actually 5449 // allowed to wipe the device (e.g. a regular device admin shouldn't be able to wipe the 5450 // device if the device owner has set DISALLOW_FACTORY_RESET, but the DO should be 5451 // able to do so). 5452 // IMPORTANT: Call without holding the lock to prevent deadlock. 5453 try { 5454 wipeDataNoLock(strictestAdmin.info.getComponent(), 5455 /*flags=*/ 0, 5456 /*reason=*/ "reportFailedPasswordAttempt()", 5457 userId); 5458 } catch (SecurityException e) { 5459 Slog.w(LOG_TAG, "Failed to wipe user " + userId 5460 + " after max failed password attempts reached.", e); 5461 } 5462 } 5463 5464 if (mInjector.securityLogIsLoggingEnabled()) { 5465 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 5466 /*method strength*/ 1); 5467 } 5468 } 5469 5470 @Override 5471 public void reportSuccessfulPasswordAttempt(int userHandle) { 5472 enforceFullCrossUsersPermission(userHandle); 5473 mContext.enforceCallingOrSelfPermission( 5474 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5475 5476 synchronized (this) { 5477 DevicePolicyData policy = getUserData(userHandle); 5478 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 5479 long ident = mInjector.binderClearCallingIdentity(); 5480 try { 5481 policy.mFailedPasswordAttempts = 0; 5482 policy.mPasswordOwner = -1; 5483 saveSettingsLocked(userHandle); 5484 if (mHasFeature) { 5485 sendAdminCommandForLockscreenPoliciesLocked( 5486 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 5487 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 5488 } 5489 } finally { 5490 mInjector.binderRestoreCallingIdentity(ident); 5491 } 5492 } 5493 } 5494 5495 if (mInjector.securityLogIsLoggingEnabled()) { 5496 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5497 /*method strength*/ 1); 5498 } 5499 } 5500 5501 @Override 5502 public void reportFailedFingerprintAttempt(int userHandle) { 5503 enforceFullCrossUsersPermission(userHandle); 5504 mContext.enforceCallingOrSelfPermission( 5505 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5506 if (mInjector.securityLogIsLoggingEnabled()) { 5507 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 5508 /*method strength*/ 0); 5509 } 5510 } 5511 5512 @Override 5513 public void reportSuccessfulFingerprintAttempt(int userHandle) { 5514 enforceFullCrossUsersPermission(userHandle); 5515 mContext.enforceCallingOrSelfPermission( 5516 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5517 if (mInjector.securityLogIsLoggingEnabled()) { 5518 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5519 /*method strength*/ 0); 5520 } 5521 } 5522 5523 @Override 5524 public void reportKeyguardDismissed(int userHandle) { 5525 enforceFullCrossUsersPermission(userHandle); 5526 mContext.enforceCallingOrSelfPermission( 5527 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5528 5529 if (mInjector.securityLogIsLoggingEnabled()) { 5530 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 5531 } 5532 } 5533 5534 @Override 5535 public void reportKeyguardSecured(int userHandle) { 5536 enforceFullCrossUsersPermission(userHandle); 5537 mContext.enforceCallingOrSelfPermission( 5538 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5539 5540 if (mInjector.securityLogIsLoggingEnabled()) { 5541 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 5542 } 5543 } 5544 5545 @Override 5546 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 5547 String exclusionList) { 5548 if (!mHasFeature) { 5549 return null; 5550 } 5551 synchronized(this) { 5552 Preconditions.checkNotNull(who, "ComponentName is null"); 5553 5554 // Only check if system user has set global proxy. We don't allow other users to set it. 5555 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5556 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5557 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 5558 5559 // Scan through active admins and find if anyone has already 5560 // set the global proxy. 5561 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 5562 for (ComponentName component : compSet) { 5563 ActiveAdmin ap = policy.mAdminMap.get(component); 5564 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 5565 // Another admin already sets the global proxy 5566 // Return it to the caller. 5567 return component; 5568 } 5569 } 5570 5571 // If the user is not system, don't set the global proxy. Fail silently. 5572 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 5573 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 5574 + UserHandle.getCallingUserId() + " is not permitted."); 5575 return null; 5576 } 5577 if (proxySpec == null) { 5578 admin.specifiesGlobalProxy = false; 5579 admin.globalProxySpec = null; 5580 admin.globalProxyExclusionList = null; 5581 } else { 5582 5583 admin.specifiesGlobalProxy = true; 5584 admin.globalProxySpec = proxySpec; 5585 admin.globalProxyExclusionList = exclusionList; 5586 } 5587 5588 // Reset the global proxy accordingly 5589 // Do this using system permissions, as apps cannot write to secure settings 5590 long origId = mInjector.binderClearCallingIdentity(); 5591 try { 5592 resetGlobalProxyLocked(policy); 5593 } finally { 5594 mInjector.binderRestoreCallingIdentity(origId); 5595 } 5596 return null; 5597 } 5598 } 5599 5600 @Override 5601 public ComponentName getGlobalProxyAdmin(int userHandle) { 5602 if (!mHasFeature) { 5603 return null; 5604 } 5605 enforceFullCrossUsersPermission(userHandle); 5606 synchronized(this) { 5607 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5608 // Scan through active admins and find if anyone has already 5609 // set the global proxy. 5610 final int N = policy.mAdminList.size(); 5611 for (int i = 0; i < N; i++) { 5612 ActiveAdmin ap = policy.mAdminList.get(i); 5613 if (ap.specifiesGlobalProxy) { 5614 // Device admin sets the global proxy 5615 // Return it to the caller. 5616 return ap.info.getComponent(); 5617 } 5618 } 5619 } 5620 // No device admin sets the global proxy. 5621 return null; 5622 } 5623 5624 @Override 5625 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 5626 synchronized (this) { 5627 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5628 } 5629 long token = mInjector.binderClearCallingIdentity(); 5630 try { 5631 ConnectivityManager connectivityManager = (ConnectivityManager) 5632 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5633 connectivityManager.setGlobalProxy(proxyInfo); 5634 } finally { 5635 mInjector.binderRestoreCallingIdentity(token); 5636 } 5637 } 5638 5639 private void resetGlobalProxyLocked(DevicePolicyData policy) { 5640 final int N = policy.mAdminList.size(); 5641 for (int i = 0; i < N; i++) { 5642 ActiveAdmin ap = policy.mAdminList.get(i); 5643 if (ap.specifiesGlobalProxy) { 5644 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 5645 return; 5646 } 5647 } 5648 // No device admins defining global proxies - reset global proxy settings to none 5649 saveGlobalProxyLocked(null, null); 5650 } 5651 5652 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 5653 if (exclusionList == null) { 5654 exclusionList = ""; 5655 } 5656 if (proxySpec == null) { 5657 proxySpec = ""; 5658 } 5659 // Remove white spaces 5660 proxySpec = proxySpec.trim(); 5661 String data[] = proxySpec.split(":"); 5662 int proxyPort = 8080; 5663 if (data.length > 1) { 5664 try { 5665 proxyPort = Integer.parseInt(data[1]); 5666 } catch (NumberFormatException e) {} 5667 } 5668 exclusionList = exclusionList.trim(); 5669 5670 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 5671 if (!proxyProperties.isValid()) { 5672 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 5673 return; 5674 } 5675 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 5676 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 5677 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 5678 exclusionList); 5679 } 5680 5681 /** 5682 * Set the storage encryption request for a single admin. Returns the new total request 5683 * status (for all admins). 5684 */ 5685 @Override 5686 public int setStorageEncryption(ComponentName who, boolean encrypt) { 5687 if (!mHasFeature) { 5688 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5689 } 5690 Preconditions.checkNotNull(who, "ComponentName is null"); 5691 final int userHandle = UserHandle.getCallingUserId(); 5692 synchronized (this) { 5693 // Check for permissions 5694 // Only system user can set storage encryption 5695 if (userHandle != UserHandle.USER_SYSTEM) { 5696 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 5697 + UserHandle.getCallingUserId() + " is not permitted."); 5698 return 0; 5699 } 5700 5701 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5702 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 5703 5704 // Quick exit: If the filesystem does not support encryption, we can exit early. 5705 if (!isEncryptionSupported()) { 5706 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5707 } 5708 5709 // (1) Record the value for the admin so it's sticky 5710 if (ap.encryptionRequested != encrypt) { 5711 ap.encryptionRequested = encrypt; 5712 saveSettingsLocked(userHandle); 5713 } 5714 5715 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5716 // (2) Compute "max" for all admins 5717 boolean newRequested = false; 5718 final int N = policy.mAdminList.size(); 5719 for (int i = 0; i < N; i++) { 5720 newRequested |= policy.mAdminList.get(i).encryptionRequested; 5721 } 5722 5723 // Notify OS of new request 5724 setEncryptionRequested(newRequested); 5725 5726 // Return the new global request status 5727 return newRequested 5728 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 5729 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5730 } 5731 } 5732 5733 /** 5734 * Get the current storage encryption request status for a given admin, or aggregate of all 5735 * active admins. 5736 */ 5737 @Override 5738 public boolean getStorageEncryption(ComponentName who, int userHandle) { 5739 if (!mHasFeature) { 5740 return false; 5741 } 5742 enforceFullCrossUsersPermission(userHandle); 5743 synchronized (this) { 5744 // Check for permissions if a particular caller is specified 5745 if (who != null) { 5746 // When checking for a single caller, status is based on caller's request 5747 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 5748 return ap != null ? ap.encryptionRequested : false; 5749 } 5750 5751 // If no particular caller is specified, return the aggregate set of requests. 5752 // This is short circuited by returning true on the first hit. 5753 DevicePolicyData policy = getUserData(userHandle); 5754 final int N = policy.mAdminList.size(); 5755 for (int i = 0; i < N; i++) { 5756 if (policy.mAdminList.get(i).encryptionRequested) { 5757 return true; 5758 } 5759 } 5760 return false; 5761 } 5762 } 5763 5764 /** 5765 * Get the current encryption status of the device. 5766 */ 5767 @Override 5768 public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) { 5769 if (!mHasFeature) { 5770 // Ok to return current status. 5771 } 5772 enforceFullCrossUsersPermission(userHandle); 5773 5774 // It's not critical here, but let's make sure the package name is correct, in case 5775 // we start using it for different purposes. 5776 ensureCallerPackage(callerPackage); 5777 5778 final ApplicationInfo ai; 5779 try { 5780 ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle); 5781 } catch (RemoteException e) { 5782 throw new SecurityException(e); 5783 } 5784 5785 boolean legacyApp = false; 5786 if (ai.targetSdkVersion <= Build.VERSION_CODES.M) { 5787 legacyApp = true; 5788 } 5789 5790 final int rawStatus = getEncryptionStatus(); 5791 if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) { 5792 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5793 } 5794 return rawStatus; 5795 } 5796 5797 /** 5798 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 5799 */ 5800 private boolean isEncryptionSupported() { 5801 // Note, this can be implemented as 5802 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5803 // But is provided as a separate internal method if there's a faster way to do a 5804 // simple check for supported-or-not. 5805 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5806 } 5807 5808 /** 5809 * Hook to low-levels: Reporting the current status of encryption. 5810 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 5811 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 5812 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, 5813 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or 5814 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 5815 */ 5816 private int getEncryptionStatus() { 5817 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 5818 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER; 5819 } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) { 5820 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5821 } else if (mInjector.storageManagerIsEncrypted()) { 5822 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 5823 } else if (mInjector.storageManagerIsEncryptable()) { 5824 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5825 } else { 5826 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5827 } 5828 } 5829 5830 /** 5831 * Hook to low-levels: If needed, record the new admin setting for encryption. 5832 */ 5833 private void setEncryptionRequested(boolean encrypt) { 5834 } 5835 5836 /** 5837 * Set whether the screen capture is disabled for the user managed by the specified admin. 5838 */ 5839 @Override 5840 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 5841 if (!mHasFeature) { 5842 return; 5843 } 5844 Preconditions.checkNotNull(who, "ComponentName is null"); 5845 final int userHandle = UserHandle.getCallingUserId(); 5846 synchronized (this) { 5847 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5848 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5849 if (ap.disableScreenCapture != disabled) { 5850 ap.disableScreenCapture = disabled; 5851 saveSettingsLocked(userHandle); 5852 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 5853 } 5854 } 5855 } 5856 5857 /** 5858 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 5859 * active admin (if given admin is null). 5860 */ 5861 @Override 5862 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 5863 if (!mHasFeature) { 5864 return false; 5865 } 5866 synchronized (this) { 5867 if (who != null) { 5868 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5869 return (admin != null) ? admin.disableScreenCapture : false; 5870 } 5871 5872 DevicePolicyData policy = getUserData(userHandle); 5873 final int N = policy.mAdminList.size(); 5874 for (int i = 0; i < N; i++) { 5875 ActiveAdmin admin = policy.mAdminList.get(i); 5876 if (admin.disableScreenCapture) { 5877 return true; 5878 } 5879 } 5880 return false; 5881 } 5882 } 5883 5884 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 5885 final boolean disabled) { 5886 mHandler.post(new Runnable() { 5887 @Override 5888 public void run() { 5889 try { 5890 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 5891 } catch (RemoteException e) { 5892 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 5893 } 5894 } 5895 }); 5896 } 5897 5898 /** 5899 * Set whether auto time is required by the specified admin (must be device or profile owner). 5900 */ 5901 @Override 5902 public void setAutoTimeRequired(ComponentName who, boolean required) { 5903 if (!mHasFeature) { 5904 return; 5905 } 5906 Preconditions.checkNotNull(who, "ComponentName is null"); 5907 final int userHandle = UserHandle.getCallingUserId(); 5908 synchronized (this) { 5909 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5910 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5911 if (admin.requireAutoTime != required) { 5912 admin.requireAutoTime = required; 5913 saveSettingsLocked(userHandle); 5914 } 5915 } 5916 5917 // Turn AUTO_TIME on in settings if it is required 5918 if (required) { 5919 long ident = mInjector.binderClearCallingIdentity(); 5920 try { 5921 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 5922 } finally { 5923 mInjector.binderRestoreCallingIdentity(ident); 5924 } 5925 } 5926 } 5927 5928 /** 5929 * Returns whether or not auto time is required by the device owner or any profile owner. 5930 */ 5931 @Override 5932 public boolean getAutoTimeRequired() { 5933 if (!mHasFeature) { 5934 return false; 5935 } 5936 synchronized (this) { 5937 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5938 if (deviceOwner != null && deviceOwner.requireAutoTime) { 5939 // If the device owner enforces auto time, we don't need to check the PO's 5940 return true; 5941 } 5942 5943 // Now check to see if any profile owner on any user enforces auto time 5944 for (Integer userId : mOwners.getProfileOwnerKeys()) { 5945 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 5946 if (profileOwner != null && profileOwner.requireAutoTime) { 5947 return true; 5948 } 5949 } 5950 5951 return false; 5952 } 5953 } 5954 5955 @Override 5956 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 5957 if (!mHasFeature) { 5958 return; 5959 } 5960 Preconditions.checkNotNull(who, "ComponentName is null"); 5961 // Allow setting this policy to true only if there is a split system user. 5962 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 5963 throw new UnsupportedOperationException( 5964 "Cannot force ephemeral users on systems without split system user."); 5965 } 5966 boolean removeAllUsers = false; 5967 synchronized (this) { 5968 final ActiveAdmin deviceOwner = 5969 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5970 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 5971 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 5972 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 5973 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 5974 removeAllUsers = forceEphemeralUsers; 5975 } 5976 } 5977 if (removeAllUsers) { 5978 long identitity = mInjector.binderClearCallingIdentity(); 5979 try { 5980 mUserManagerInternal.removeAllUsers(); 5981 } finally { 5982 mInjector.binderRestoreCallingIdentity(identitity); 5983 } 5984 } 5985 } 5986 5987 @Override 5988 public boolean getForceEphemeralUsers(ComponentName who) { 5989 if (!mHasFeature) { 5990 return false; 5991 } 5992 Preconditions.checkNotNull(who, "ComponentName is null"); 5993 synchronized (this) { 5994 final ActiveAdmin deviceOwner = 5995 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5996 return deviceOwner.forceEphemeralUsers; 5997 } 5998 } 5999 6000 private void ensureDeviceOwnerAndAllUsersAffiliated(ComponentName who) throws SecurityException { 6001 synchronized (this) { 6002 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6003 if (!areAllUsersAffiliatedWithDeviceLocked()) { 6004 throw new SecurityException("Not all users are affiliated."); 6005 } 6006 } 6007 } 6008 6009 @Override 6010 public boolean requestBugreport(ComponentName who) { 6011 if (!mHasFeature) { 6012 return false; 6013 } 6014 Preconditions.checkNotNull(who, "ComponentName is null"); 6015 6016 // TODO: If an unaffiliated user is removed, the admin will be able to request a bugreport 6017 // which could still contain data related to that user. Should we disallow that, e.g. until 6018 // next boot? Might not be needed given that this still requires user consent. 6019 ensureDeviceOwnerAndAllUsersAffiliated(who); 6020 6021 if (mRemoteBugreportServiceIsActive.get() 6022 || (getDeviceOwnerRemoteBugreportUri() != null)) { 6023 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 6024 return false; 6025 } 6026 6027 final long currentTime = System.currentTimeMillis(); 6028 synchronized (this) { 6029 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 6030 if (currentTime > policyData.mLastBugReportRequestTime) { 6031 policyData.mLastBugReportRequestTime = currentTime; 6032 saveSettingsLocked(UserHandle.USER_SYSTEM); 6033 } 6034 } 6035 6036 final long callingIdentity = mInjector.binderClearCallingIdentity(); 6037 try { 6038 mInjector.getIActivityManager().requestBugReport( 6039 ActivityManager.BUGREPORT_OPTION_REMOTE); 6040 6041 mRemoteBugreportServiceIsActive.set(true); 6042 mRemoteBugreportSharingAccepted.set(false); 6043 registerRemoteBugreportReceivers(); 6044 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 6045 RemoteBugreportUtils.NOTIFICATION_ID, 6046 RemoteBugreportUtils.buildNotification(mContext, 6047 DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL); 6048 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 6049 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 6050 return true; 6051 } catch (RemoteException re) { 6052 // should never happen 6053 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 6054 return false; 6055 } finally { 6056 mInjector.binderRestoreCallingIdentity(callingIdentity); 6057 } 6058 } 6059 6060 synchronized void sendDeviceOwnerCommand(String action, Bundle extras) { 6061 Intent intent = new Intent(action); 6062 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6063 if (extras != null) { 6064 intent.putExtras(extras); 6065 } 6066 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6067 } 6068 6069 private synchronized String getDeviceOwnerRemoteBugreportUri() { 6070 return mOwners.getDeviceOwnerRemoteBugreportUri(); 6071 } 6072 6073 private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 6074 String bugreportHash) { 6075 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 6076 } 6077 6078 private void registerRemoteBugreportReceivers() { 6079 try { 6080 IntentFilter filterFinished = new IntentFilter( 6081 DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH, 6082 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6083 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 6084 } catch (IntentFilter.MalformedMimeTypeException e) { 6085 // should never happen, as setting a constant 6086 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 6087 } 6088 IntentFilter filterConsent = new IntentFilter(); 6089 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 6090 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 6091 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 6092 } 6093 6094 private void onBugreportFinished(Intent intent) { 6095 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6096 mRemoteBugreportServiceIsActive.set(false); 6097 Uri bugreportUri = intent.getData(); 6098 String bugreportUriString = null; 6099 if (bugreportUri != null) { 6100 bugreportUriString = bugreportUri.toString(); 6101 } 6102 String bugreportHash = intent.getStringExtra( 6103 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH); 6104 if (mRemoteBugreportSharingAccepted.get()) { 6105 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6106 mInjector.getNotificationManager().cancel(LOG_TAG, 6107 RemoteBugreportUtils.NOTIFICATION_ID); 6108 } else { 6109 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 6110 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6111 RemoteBugreportUtils.buildNotification(mContext, 6112 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 6113 UserHandle.ALL); 6114 } 6115 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6116 } 6117 6118 private void onBugreportFailed() { 6119 mRemoteBugreportServiceIsActive.set(false); 6120 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6121 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6122 mRemoteBugreportSharingAccepted.set(false); 6123 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6124 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 6125 Bundle extras = new Bundle(); 6126 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6127 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 6128 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6129 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 6130 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6131 } 6132 6133 private void onBugreportSharingAccepted() { 6134 mRemoteBugreportSharingAccepted.set(true); 6135 String bugreportUriString = null; 6136 String bugreportHash = null; 6137 synchronized (this) { 6138 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 6139 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 6140 } 6141 if (bugreportUriString != null) { 6142 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6143 } else if (mRemoteBugreportServiceIsActive.get()) { 6144 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6145 RemoteBugreportUtils.buildNotification(mContext, 6146 DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED), 6147 UserHandle.ALL); 6148 } 6149 } 6150 6151 private void onBugreportSharingDeclined() { 6152 if (mRemoteBugreportServiceIsActive.get()) { 6153 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6154 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6155 mRemoteBugreportServiceIsActive.set(false); 6156 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6157 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6158 } 6159 mRemoteBugreportSharingAccepted.set(false); 6160 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6161 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 6162 } 6163 6164 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 6165 String bugreportHash) { 6166 ParcelFileDescriptor pfd = null; 6167 try { 6168 if (bugreportUriString == null) { 6169 throw new FileNotFoundException(); 6170 } 6171 Uri bugreportUri = Uri.parse(bugreportUriString); 6172 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 6173 6174 synchronized (this) { 6175 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 6176 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6177 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6178 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 6179 intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 6180 6181 LocalServices.getService(ActivityManagerInternal.class) 6182 .grantUriPermissionFromIntent(Process.SHELL_UID, 6183 mOwners.getDeviceOwnerComponent().getPackageName(), 6184 intent, mOwners.getDeviceOwnerUserId()); 6185 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6186 } 6187 } catch (FileNotFoundException e) { 6188 Bundle extras = new Bundle(); 6189 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6190 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 6191 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6192 } finally { 6193 try { 6194 if (pfd != null) { 6195 pfd.close(); 6196 } 6197 } catch (IOException ex) { 6198 // Ignore 6199 } 6200 mRemoteBugreportSharingAccepted.set(false); 6201 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6202 } 6203 } 6204 6205 /** 6206 * Disables all device cameras according to the specified admin. 6207 */ 6208 @Override 6209 public void setCameraDisabled(ComponentName who, boolean disabled) { 6210 if (!mHasFeature) { 6211 return; 6212 } 6213 Preconditions.checkNotNull(who, "ComponentName is null"); 6214 final int userHandle = mInjector.userHandleGetCallingUserId(); 6215 synchronized (this) { 6216 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6217 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 6218 if (ap.disableCamera != disabled) { 6219 ap.disableCamera = disabled; 6220 saveSettingsLocked(userHandle); 6221 } 6222 } 6223 // Tell the user manager that the restrictions have changed. 6224 pushUserRestrictions(userHandle); 6225 } 6226 6227 /** 6228 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 6229 * active admins. 6230 */ 6231 @Override 6232 public boolean getCameraDisabled(ComponentName who, int userHandle) { 6233 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 6234 } 6235 6236 private boolean getCameraDisabled(ComponentName who, int userHandle, 6237 boolean mergeDeviceOwnerRestriction) { 6238 if (!mHasFeature) { 6239 return false; 6240 } 6241 synchronized (this) { 6242 if (who != null) { 6243 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6244 return (admin != null) ? admin.disableCamera : false; 6245 } 6246 // First, see if DO has set it. If so, it's device-wide. 6247 if (mergeDeviceOwnerRestriction) { 6248 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6249 if (deviceOwner != null && deviceOwner.disableCamera) { 6250 return true; 6251 } 6252 } 6253 6254 // Then check each device admin on the user. 6255 DevicePolicyData policy = getUserData(userHandle); 6256 // Determine whether or not the device camera is disabled for any active admins. 6257 final int N = policy.mAdminList.size(); 6258 for (int i = 0; i < N; i++) { 6259 ActiveAdmin admin = policy.mAdminList.get(i); 6260 if (admin.disableCamera) { 6261 return true; 6262 } 6263 } 6264 return false; 6265 } 6266 } 6267 6268 @Override 6269 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 6270 if (!mHasFeature) { 6271 return; 6272 } 6273 Preconditions.checkNotNull(who, "ComponentName is null"); 6274 final int userHandle = mInjector.userHandleGetCallingUserId(); 6275 if (isManagedProfile(userHandle)) { 6276 if (parent) { 6277 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 6278 } else { 6279 which = which & PROFILE_KEYGUARD_FEATURES; 6280 } 6281 } 6282 synchronized (this) { 6283 ActiveAdmin ap = getActiveAdminForCallerLocked( 6284 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 6285 if (ap.disabledKeyguardFeatures != which) { 6286 ap.disabledKeyguardFeatures = which; 6287 saveSettingsLocked(userHandle); 6288 } 6289 } 6290 } 6291 6292 /** 6293 * Gets the disabled state for features in keyguard for the given admin, 6294 * or the aggregate of all active admins if who is null. 6295 */ 6296 @Override 6297 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 6298 if (!mHasFeature) { 6299 return 0; 6300 } 6301 enforceFullCrossUsersPermission(userHandle); 6302 final long ident = mInjector.binderClearCallingIdentity(); 6303 try { 6304 synchronized (this) { 6305 if (who != null) { 6306 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 6307 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 6308 } 6309 6310 final List<ActiveAdmin> admins; 6311 if (!parent && isManagedProfile(userHandle)) { 6312 // If we are being asked about a managed profile, just return keyguard features 6313 // disabled by admins in the profile. 6314 admins = getUserDataUnchecked(userHandle).mAdminList; 6315 } else { 6316 // Otherwise return those set by admins in the user and its profiles. 6317 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 6318 } 6319 6320 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 6321 final int N = admins.size(); 6322 for (int i = 0; i < N; i++) { 6323 ActiveAdmin admin = admins.get(i); 6324 int userId = admin.getUserHandle().getIdentifier(); 6325 boolean isRequestedUser = !parent && (userId == userHandle); 6326 if (isRequestedUser || !isManagedProfile(userId)) { 6327 // If we are being asked explicitly about this user 6328 // return all disabled features even if its a managed profile. 6329 which |= admin.disabledKeyguardFeatures; 6330 } else { 6331 // Otherwise a managed profile is only allowed to disable 6332 // some features on the parent user. 6333 which |= (admin.disabledKeyguardFeatures 6334 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 6335 } 6336 } 6337 return which; 6338 } 6339 } finally { 6340 mInjector.binderRestoreCallingIdentity(ident); 6341 } 6342 } 6343 6344 @Override 6345 public void setKeepUninstalledPackages(ComponentName who, String callerPackage, 6346 List<String> packageList) { 6347 if (!mHasFeature) { 6348 return; 6349 } 6350 Preconditions.checkNotNull(packageList, "packageList is null"); 6351 final int userHandle = UserHandle.getCallingUserId(); 6352 synchronized (this) { 6353 // Ensure the caller is a DO or a keep uninstalled packages delegate. 6354 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 6355 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 6356 // Get the device owner 6357 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6358 // Set list of packages to be kept even if uninstalled. 6359 deviceOwner.keepUninstalledPackages = packageList; 6360 // Save settings. 6361 saveSettingsLocked(userHandle); 6362 // Notify package manager. 6363 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 6364 } 6365 } 6366 6367 @Override 6368 public List<String> getKeepUninstalledPackages(ComponentName who, String callerPackage) { 6369 if (!mHasFeature) { 6370 return null; 6371 } 6372 // TODO In split system user mode, allow apps on user 0 to query the list 6373 synchronized (this) { 6374 // Ensure the caller is a DO or a keep uninstalled packages delegate. 6375 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 6376 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 6377 return getKeepUninstalledPackagesLocked(); 6378 } 6379 } 6380 6381 private List<String> getKeepUninstalledPackagesLocked() { 6382 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6383 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 6384 } 6385 6386 @Override 6387 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 6388 if (!mHasFeature) { 6389 return false; 6390 } 6391 if (admin == null 6392 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 6393 throw new IllegalArgumentException("Invalid component " + admin 6394 + " for device owner"); 6395 } 6396 final boolean hasIncompatibleAccountsOrNonAdb = 6397 hasIncompatibleAccountsOrNonAdbNoLock(userId, admin); 6398 synchronized (this) { 6399 enforceCanSetDeviceOwnerLocked(admin, userId, hasIncompatibleAccountsOrNonAdb); 6400 final ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(admin, userId); 6401 if (activeAdmin == null 6402 || getUserData(userId).mRemovingAdmins.contains(admin)) { 6403 throw new IllegalArgumentException("Not active admin: " + admin); 6404 } 6405 6406 // Shutting down backup manager service permanently. 6407 long ident = mInjector.binderClearCallingIdentity(); 6408 try { 6409 if (mInjector.getIBackupManager() != null) { 6410 mInjector.getIBackupManager() 6411 .setBackupServiceActive(UserHandle.USER_SYSTEM, false); 6412 } 6413 } catch (RemoteException e) { 6414 throw new IllegalStateException("Failed deactivating backup service.", e); 6415 } finally { 6416 mInjector.binderRestoreCallingIdentity(ident); 6417 } 6418 6419 if (isAdb()) { 6420 // Log device owner provisioning was started using adb. 6421 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_DEVICE_OWNER); 6422 } 6423 6424 mOwners.setDeviceOwner(admin, ownerName, userId); 6425 mOwners.writeDeviceOwner(); 6426 updateDeviceOwnerLocked(); 6427 setDeviceOwnerSystemPropertyLocked(); 6428 6429 final Set<String> restrictions = 6430 UserRestrictionsUtils.getDefaultEnabledForDeviceOwner(); 6431 if (!restrictions.isEmpty()) { 6432 for (String restriction : restrictions) { 6433 activeAdmin.ensureUserRestrictions().putBoolean(restriction, true); 6434 } 6435 activeAdmin.defaultEnabledRestrictionsAlreadySet.addAll(restrictions); 6436 Slog.i(LOG_TAG, "Enabled the following restrictions by default: " + restrictions); 6437 6438 saveUserRestrictionsLocked(userId); 6439 } 6440 6441 ident = mInjector.binderClearCallingIdentity(); 6442 try { 6443 // TODO Send to system too? 6444 mContext.sendBroadcastAsUser( 6445 new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED) 6446 .addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND), 6447 UserHandle.of(userId)); 6448 } finally { 6449 mInjector.binderRestoreCallingIdentity(ident); 6450 } 6451 Slog.i(LOG_TAG, "Device owner set: " + admin + " on user " + userId); 6452 return true; 6453 } 6454 } 6455 6456 @Override 6457 public boolean hasDeviceOwner() { 6458 enforceDeviceOwnerOrManageUsers(); 6459 return mOwners.hasDeviceOwner(); 6460 } 6461 6462 boolean isDeviceOwner(ActiveAdmin admin) { 6463 return isDeviceOwner(admin.info.getComponent(), admin.getUserHandle().getIdentifier()); 6464 } 6465 6466 public boolean isDeviceOwner(ComponentName who, int userId) { 6467 synchronized (this) { 6468 return mOwners.hasDeviceOwner() 6469 && mOwners.getDeviceOwnerUserId() == userId 6470 && mOwners.getDeviceOwnerComponent().equals(who); 6471 } 6472 } 6473 6474 private boolean isDeviceOwnerPackage(String packageName, int userId) { 6475 synchronized (this) { 6476 return mOwners.hasDeviceOwner() 6477 && mOwners.getDeviceOwnerUserId() == userId 6478 && mOwners.getDeviceOwnerPackageName().equals(packageName); 6479 } 6480 } 6481 6482 private boolean isProfileOwnerPackage(String packageName, int userId) { 6483 synchronized (this) { 6484 return mOwners.hasProfileOwner(userId) 6485 && mOwners.getProfileOwnerPackage(userId).equals(packageName); 6486 } 6487 } 6488 6489 public boolean isProfileOwner(ComponentName who, int userId) { 6490 final ComponentName profileOwner = getProfileOwner(userId); 6491 return who != null && who.equals(profileOwner); 6492 } 6493 6494 @Override 6495 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 6496 if (!mHasFeature) { 6497 return null; 6498 } 6499 if (!callingUserOnly) { 6500 enforceManageUsers(); 6501 } 6502 synchronized (this) { 6503 if (!mOwners.hasDeviceOwner()) { 6504 return null; 6505 } 6506 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 6507 mOwners.getDeviceOwnerUserId()) { 6508 return null; 6509 } 6510 return mOwners.getDeviceOwnerComponent(); 6511 } 6512 } 6513 6514 @Override 6515 public int getDeviceOwnerUserId() { 6516 if (!mHasFeature) { 6517 return UserHandle.USER_NULL; 6518 } 6519 enforceManageUsers(); 6520 synchronized (this) { 6521 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 6522 } 6523 } 6524 6525 /** 6526 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 6527 * MANAGE_USERS. 6528 */ 6529 @Override 6530 public String getDeviceOwnerName() { 6531 if (!mHasFeature) { 6532 return null; 6533 } 6534 enforceManageUsers(); 6535 synchronized (this) { 6536 if (!mOwners.hasDeviceOwner()) { 6537 return null; 6538 } 6539 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 6540 // Should setDeviceOwner/ProfileOwner still take a name? 6541 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 6542 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 6543 } 6544 } 6545 6546 /** Returns the active device owner or {@code null} if there is no device owner. */ 6547 @VisibleForTesting 6548 ActiveAdmin getDeviceOwnerAdminLocked() { 6549 ComponentName component = mOwners.getDeviceOwnerComponent(); 6550 if (component == null) { 6551 return null; 6552 } 6553 6554 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 6555 final int n = policy.mAdminList.size(); 6556 for (int i = 0; i < n; i++) { 6557 ActiveAdmin admin = policy.mAdminList.get(i); 6558 if (component.equals(admin.info.getComponent())) { 6559 return admin; 6560 } 6561 } 6562 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 6563 return null; 6564 } 6565 6566 @Override 6567 public void clearDeviceOwner(String packageName) { 6568 Preconditions.checkNotNull(packageName, "packageName is null"); 6569 final int callingUid = mInjector.binderGetCallingUid(); 6570 try { 6571 int uid = mInjector.getPackageManager().getPackageUidAsUser(packageName, 6572 UserHandle.getUserId(callingUid)); 6573 if (uid != callingUid) { 6574 throw new SecurityException("Invalid packageName"); 6575 } 6576 } catch (NameNotFoundException e) { 6577 throw new SecurityException(e); 6578 } 6579 synchronized (this) { 6580 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 6581 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 6582 if (!mOwners.hasDeviceOwner() 6583 || !deviceOwnerComponent.getPackageName().equals(packageName) 6584 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 6585 throw new SecurityException( 6586 "clearDeviceOwner can only be called by the device owner"); 6587 } 6588 enforceUserUnlocked(deviceOwnerUserId); 6589 6590 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 6591 long ident = mInjector.binderClearCallingIdentity(); 6592 try { 6593 clearDeviceOwnerLocked(admin, deviceOwnerUserId); 6594 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 6595 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 6596 intent.addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); 6597 mContext.sendBroadcastAsUser(intent, UserHandle.of(deviceOwnerUserId)); 6598 } finally { 6599 mInjector.binderRestoreCallingIdentity(ident); 6600 } 6601 Slog.i(LOG_TAG, "Device owner removed: " + deviceOwnerComponent); 6602 } 6603 } 6604 6605 private void clearDeviceOwnerLocked(ActiveAdmin admin, int userId) { 6606 if (admin != null) { 6607 admin.disableCamera = false; 6608 admin.userRestrictions = null; 6609 admin.defaultEnabledRestrictionsAlreadySet.clear(); 6610 admin.forceEphemeralUsers = false; 6611 admin.isNetworkLoggingEnabled = false; 6612 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 6613 } 6614 final DevicePolicyData policyData = getUserData(userId); 6615 policyData.mDefaultInputMethodSet = false; 6616 saveSettingsLocked(userId); 6617 final DevicePolicyData systemPolicyData = getUserData(UserHandle.USER_SYSTEM); 6618 systemPolicyData.mLastSecurityLogRetrievalTime = -1; 6619 systemPolicyData.mLastBugReportRequestTime = -1; 6620 systemPolicyData.mLastNetworkLogsRetrievalTime = -1; 6621 saveSettingsLocked(UserHandle.USER_SYSTEM); 6622 clearUserPoliciesLocked(userId); 6623 6624 mOwners.clearDeviceOwner(); 6625 mOwners.writeDeviceOwner(); 6626 updateDeviceOwnerLocked(); 6627 6628 clearDeviceOwnerUserRestrictionLocked(UserHandle.of(userId)); 6629 mInjector.securityLogSetLoggingEnabledProperty(false); 6630 mSecurityLogMonitor.stop(); 6631 setNetworkLoggingActiveInternal(false); 6632 6633 try { 6634 if (mInjector.getIBackupManager() != null) { 6635 // Reactivate backup service. 6636 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 6637 } 6638 } catch (RemoteException e) { 6639 throw new IllegalStateException("Failed reactivating backup service.", e); 6640 } 6641 } 6642 6643 @Override 6644 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 6645 if (!mHasFeature) { 6646 return false; 6647 } 6648 if (who == null 6649 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 6650 throw new IllegalArgumentException("Component " + who 6651 + " not installed for userId:" + userHandle); 6652 } 6653 final boolean hasIncompatibleAccountsOrNonAdb = 6654 hasIncompatibleAccountsOrNonAdbNoLock(userHandle, who); 6655 synchronized (this) { 6656 enforceCanSetProfileOwnerLocked(who, userHandle, hasIncompatibleAccountsOrNonAdb); 6657 6658 if (getActiveAdminUncheckedLocked(who, userHandle) == null 6659 || getUserData(userHandle).mRemovingAdmins.contains(who)) { 6660 throw new IllegalArgumentException("Not active admin: " + who); 6661 } 6662 6663 if (isAdb()) { 6664 // Log profile owner provisioning was started using adb. 6665 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_PROFILE_OWNER); 6666 } 6667 6668 mOwners.setProfileOwner(who, ownerName, userHandle); 6669 mOwners.writeProfileOwner(userHandle); 6670 Slog.i(LOG_TAG, "Profile owner set: " + who + " on user " + userHandle); 6671 6672 if (mUserManager.isManagedProfile(userHandle)) { 6673 setUserRestrictionOnBehalfOfProfileOwnerLocked( 6674 UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, userHandle); 6675 Settings.Secure.putIntForUser(mContext.getContentResolver(), 6676 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userHandle); 6677 } 6678 return true; 6679 } 6680 } 6681 6682 @Override 6683 public void clearProfileOwner(ComponentName who) { 6684 if (!mHasFeature) { 6685 return; 6686 } 6687 Preconditions.checkNotNull(who, "ComponentName is null"); 6688 6689 final int userId = mInjector.userHandleGetCallingUserId(); 6690 enforceNotManagedProfile(userId, "clear profile owner"); 6691 enforceUserUnlocked(userId); 6692 synchronized (this) { 6693 // Check if this is the profile owner who is calling 6694 final ActiveAdmin admin = 6695 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6696 6697 final long ident = mInjector.binderClearCallingIdentity(); 6698 try { 6699 clearProfileOwnerLocked(admin, userId); 6700 removeActiveAdminLocked(who, userId); 6701 } finally { 6702 mInjector.binderRestoreCallingIdentity(ident); 6703 } 6704 Slog.i(LOG_TAG, "Profile owner " + who + " removed from user " + userId); 6705 } 6706 } 6707 6708 public void clearProfileOwnerLocked(ActiveAdmin admin, int userId) { 6709 if (admin != null) { 6710 admin.disableCamera = false; 6711 admin.userRestrictions = null; 6712 admin.defaultEnabledRestrictionsAlreadySet.clear(); 6713 } 6714 final DevicePolicyData policyData = getUserData(userId); 6715 policyData.mDefaultInputMethodSet = false; 6716 saveSettingsLocked(userId); 6717 clearUserPoliciesLocked(userId); 6718 mOwners.removeProfileOwner(userId); 6719 mOwners.writeProfileOwner(userId); 6720 } 6721 6722 @Override 6723 public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) { 6724 Preconditions.checkNotNull(who, "ComponentName is null"); 6725 if (!mHasFeature) { 6726 return; 6727 } 6728 6729 synchronized (this) { 6730 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6731 long token = mInjector.binderClearCallingIdentity(); 6732 try { 6733 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null); 6734 } finally { 6735 mInjector.binderRestoreCallingIdentity(token); 6736 } 6737 } 6738 } 6739 6740 @Override 6741 public CharSequence getDeviceOwnerLockScreenInfo() { 6742 return mLockPatternUtils.getDeviceOwnerInfo(); 6743 } 6744 6745 private void clearUserPoliciesLocked(int userId) { 6746 // Reset some of the user-specific policies. 6747 final DevicePolicyData policy = getUserData(userId); 6748 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 6749 // Clear delegations. 6750 policy.mDelegationMap.clear(); 6751 policy.mStatusBarDisabled = false; 6752 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 6753 policy.mAffiliationIds.clear(); 6754 policy.mLockTaskPackages.clear(); 6755 saveSettingsLocked(userId); 6756 6757 try { 6758 mIPackageManager.updatePermissionFlagsForAllApps( 6759 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6760 0 /* flagValues */, userId); 6761 pushUserRestrictions(userId); 6762 } catch (RemoteException re) { 6763 // Shouldn't happen. 6764 } 6765 } 6766 6767 @Override 6768 public boolean hasUserSetupCompleted() { 6769 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 6770 } 6771 6772 // This checks only if the Setup Wizard has run. Since Wear devices pair before 6773 // completing Setup Wizard, and pairing involves transferring user data, calling 6774 // logic may want to check mIsWatch or mPaired in addition to hasUserSetupCompleted(). 6775 private boolean hasUserSetupCompleted(int userHandle) { 6776 if (!mHasFeature) { 6777 return true; 6778 } 6779 return getUserData(userHandle).mUserSetupComplete; 6780 } 6781 6782 private boolean hasPaired(int userHandle) { 6783 if (!mHasFeature) { 6784 return true; 6785 } 6786 return getUserData(userHandle).mPaired; 6787 } 6788 6789 @Override 6790 public int getUserProvisioningState() { 6791 if (!mHasFeature) { 6792 return DevicePolicyManager.STATE_USER_UNMANAGED; 6793 } 6794 int userHandle = mInjector.userHandleGetCallingUserId(); 6795 return getUserProvisioningState(userHandle); 6796 } 6797 6798 private int getUserProvisioningState(int userHandle) { 6799 return getUserData(userHandle).mUserProvisioningState; 6800 } 6801 6802 @Override 6803 public void setUserProvisioningState(int newState, int userHandle) { 6804 if (!mHasFeature) { 6805 return; 6806 } 6807 6808 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 6809 && getManagedUserId(userHandle) == -1) { 6810 // No managed device, user or profile, so setting provisioning state makes no sense. 6811 throw new IllegalStateException("Not allowed to change provisioning state unless a " 6812 + "device or profile owner is set."); 6813 } 6814 6815 synchronized (this) { 6816 boolean transitionCheckNeeded = true; 6817 6818 // Calling identity/permission checks. 6819 if (isAdb()) { 6820 // ADB shell can only move directly from un-managed to finalized as part of directly 6821 // setting profile-owner or device-owner. 6822 if (getUserProvisioningState(userHandle) != 6823 DevicePolicyManager.STATE_USER_UNMANAGED 6824 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6825 throw new IllegalStateException("Not allowed to change provisioning state " 6826 + "unless current provisioning state is unmanaged, and new state is " 6827 + "finalized."); 6828 } 6829 transitionCheckNeeded = false; 6830 } else { 6831 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 6832 enforceCanManageProfileAndDeviceOwners(); 6833 } 6834 6835 final DevicePolicyData policyData = getUserData(userHandle); 6836 if (transitionCheckNeeded) { 6837 // Optional state transition check for non-ADB case. 6838 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 6839 } 6840 policyData.mUserProvisioningState = newState; 6841 saveSettingsLocked(userHandle); 6842 } 6843 } 6844 6845 private void checkUserProvisioningStateTransition(int currentState, int newState) { 6846 // Valid transitions for normal use-cases. 6847 switch (currentState) { 6848 case DevicePolicyManager.STATE_USER_UNMANAGED: 6849 // Can move to any state from unmanaged (except itself as an edge case).. 6850 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 6851 return; 6852 } 6853 break; 6854 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 6855 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 6856 // Can only move to finalized from these states. 6857 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6858 return; 6859 } 6860 break; 6861 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 6862 // Current user has a managed-profile, but current user is not managed, so 6863 // rather than moving to finalized state, go back to unmanaged once 6864 // profile provisioning is complete. 6865 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 6866 return; 6867 } 6868 break; 6869 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 6870 // Cannot transition out of finalized. 6871 break; 6872 } 6873 6874 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 6875 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 6876 + "from state [" + currentState + "]"); 6877 } 6878 6879 @Override 6880 public void setProfileEnabled(ComponentName who) { 6881 if (!mHasFeature) { 6882 return; 6883 } 6884 Preconditions.checkNotNull(who, "ComponentName is null"); 6885 synchronized (this) { 6886 // Check if this is the profile owner who is calling 6887 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6888 final int userId = UserHandle.getCallingUserId(); 6889 enforceManagedProfile(userId, "enable the profile"); 6890 // Check if the profile is already enabled. 6891 UserInfo managedProfile = getUserInfo(userId); 6892 if (managedProfile.isEnabled()) { 6893 Slog.e(LOG_TAG, 6894 "setProfileEnabled is called when the profile is already enabled"); 6895 return; 6896 } 6897 long id = mInjector.binderClearCallingIdentity(); 6898 try { 6899 mUserManager.setUserEnabled(userId); 6900 UserInfo parent = mUserManager.getProfileParent(userId); 6901 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 6902 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 6903 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 6904 Intent.FLAG_RECEIVER_FOREGROUND); 6905 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 6906 } finally { 6907 mInjector.binderRestoreCallingIdentity(id); 6908 } 6909 } 6910 } 6911 6912 @Override 6913 public void setProfileName(ComponentName who, String profileName) { 6914 Preconditions.checkNotNull(who, "ComponentName is null"); 6915 int userId = UserHandle.getCallingUserId(); 6916 // Check if this is the profile owner (includes device owner). 6917 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6918 6919 long id = mInjector.binderClearCallingIdentity(); 6920 try { 6921 mUserManager.setUserName(userId, profileName); 6922 } finally { 6923 mInjector.binderRestoreCallingIdentity(id); 6924 } 6925 } 6926 6927 @Override 6928 public ComponentName getProfileOwner(int userHandle) { 6929 if (!mHasFeature) { 6930 return null; 6931 } 6932 6933 synchronized (this) { 6934 return mOwners.getProfileOwnerComponent(userHandle); 6935 } 6936 } 6937 6938 // Returns the active profile owner for this user or null if the current user has no 6939 // profile owner. 6940 @VisibleForTesting 6941 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 6942 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 6943 if (profileOwner == null) { 6944 return null; 6945 } 6946 DevicePolicyData policy = getUserData(userHandle); 6947 final int n = policy.mAdminList.size(); 6948 for (int i = 0; i < n; i++) { 6949 ActiveAdmin admin = policy.mAdminList.get(i); 6950 if (profileOwner.equals(admin.info.getComponent())) { 6951 return admin; 6952 } 6953 } 6954 return null; 6955 } 6956 6957 @Override 6958 public String getProfileOwnerName(int userHandle) { 6959 if (!mHasFeature) { 6960 return null; 6961 } 6962 enforceManageUsers(); 6963 ComponentName profileOwner = getProfileOwner(userHandle); 6964 if (profileOwner == null) { 6965 return null; 6966 } 6967 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 6968 } 6969 6970 /** 6971 * Canonical name for a given package. 6972 */ 6973 private String getApplicationLabel(String packageName, int userHandle) { 6974 long token = mInjector.binderClearCallingIdentity(); 6975 try { 6976 final Context userContext; 6977 try { 6978 UserHandle handle = new UserHandle(userHandle); 6979 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 6980 } catch (PackageManager.NameNotFoundException nnfe) { 6981 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 6982 return null; 6983 } 6984 ApplicationInfo appInfo = userContext.getApplicationInfo(); 6985 CharSequence result = null; 6986 if (appInfo != null) { 6987 PackageManager pm = userContext.getPackageManager(); 6988 result = pm.getApplicationLabel(appInfo); 6989 } 6990 return result != null ? result.toString() : null; 6991 } finally { 6992 mInjector.binderRestoreCallingIdentity(token); 6993 } 6994 } 6995 6996 /** 6997 * Calls wtfStack() if called with the DPMS lock held. 6998 */ 6999 private void wtfIfInLock() { 7000 if (Thread.holdsLock(this)) { 7001 Slog.wtfStack(LOG_TAG, "Shouldn't be called with DPMS lock held"); 7002 } 7003 } 7004 7005 /** 7006 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7007 * permission. 7008 * The profile owner can only be set before the user setup phase has completed, 7009 * except for: 7010 * - SYSTEM_UID 7011 * - adb unless hasIncompatibleAccountsOrNonAdb is true. 7012 */ 7013 private void enforceCanSetProfileOwnerLocked(@Nullable ComponentName owner, int userHandle, 7014 boolean hasIncompatibleAccountsOrNonAdb) { 7015 UserInfo info = getUserInfo(userHandle); 7016 if (info == null) { 7017 // User doesn't exist. 7018 throw new IllegalArgumentException( 7019 "Attempted to set profile owner for invalid userId: " + userHandle); 7020 } 7021 if (info.isGuest()) { 7022 throw new IllegalStateException("Cannot set a profile owner on a guest"); 7023 } 7024 if (mOwners.hasProfileOwner(userHandle)) { 7025 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 7026 + "is already set."); 7027 } 7028 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 7029 throw new IllegalStateException("Trying to set the profile owner, but the user " 7030 + "already has a device owner."); 7031 } 7032 if (isAdb()) { 7033 if ((mIsWatch || hasUserSetupCompleted(userHandle)) 7034 && hasIncompatibleAccountsOrNonAdb) { 7035 throw new IllegalStateException("Not allowed to set the profile owner because " 7036 + "there are already some accounts on the profile"); 7037 } 7038 return; 7039 } 7040 enforceCanManageProfileAndDeviceOwners(); 7041 if ((mIsWatch || hasUserSetupCompleted(userHandle)) && !isCallerWithSystemUid()) { 7042 throw new IllegalStateException("Cannot set the profile owner on a user which is " 7043 + "already set-up"); 7044 } 7045 } 7046 7047 /** 7048 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7049 * permission. 7050 */ 7051 private void enforceCanSetDeviceOwnerLocked(@Nullable ComponentName owner, int userId, 7052 boolean hasIncompatibleAccountsOrNonAdb) { 7053 if (!isAdb()) { 7054 enforceCanManageProfileAndDeviceOwners(); 7055 } 7056 7057 final int code = checkDeviceOwnerProvisioningPreConditionLocked( 7058 owner, userId, isAdb(), hasIncompatibleAccountsOrNonAdb); 7059 switch (code) { 7060 case CODE_OK: 7061 return; 7062 case CODE_HAS_DEVICE_OWNER: 7063 throw new IllegalStateException( 7064 "Trying to set the device owner, but device owner is already set."); 7065 case CODE_USER_HAS_PROFILE_OWNER: 7066 throw new IllegalStateException("Trying to set the device owner, but the user " 7067 + "already has a profile owner."); 7068 case CODE_USER_NOT_RUNNING: 7069 throw new IllegalStateException("User not running: " + userId); 7070 case CODE_NOT_SYSTEM_USER: 7071 throw new IllegalStateException("User is not system user"); 7072 case CODE_USER_SETUP_COMPLETED: 7073 throw new IllegalStateException( 7074 "Cannot set the device owner if the device is already set-up"); 7075 case CODE_NONSYSTEM_USER_EXISTS: 7076 throw new IllegalStateException("Not allowed to set the device owner because there " 7077 + "are already several users on the device"); 7078 case CODE_ACCOUNTS_NOT_EMPTY: 7079 throw new IllegalStateException("Not allowed to set the device owner because there " 7080 + "are already some accounts on the device"); 7081 case CODE_HAS_PAIRED: 7082 throw new IllegalStateException("Not allowed to set the device owner because this " 7083 + "device has already paired"); 7084 default: 7085 throw new IllegalStateException("Unexpected @ProvisioningPreCondition " + code); 7086 } 7087 } 7088 7089 private void enforceUserUnlocked(int userId) { 7090 // Since we're doing this operation on behalf of an app, we only 7091 // want to use the actual "unlocked" state. 7092 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 7093 "User must be running and unlocked"); 7094 } 7095 7096 private void enforceUserUnlocked(@UserIdInt int userId, boolean parent) { 7097 if (parent) { 7098 enforceUserUnlocked(getProfileParentId(userId)); 7099 } else { 7100 enforceUserUnlocked(userId); 7101 } 7102 } 7103 7104 private void enforceManageUsers() { 7105 final int callingUid = mInjector.binderGetCallingUid(); 7106 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 7107 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 7108 } 7109 } 7110 7111 private void enforceFullCrossUsersPermission(int userHandle) { 7112 enforceSystemUserOrPermission(userHandle, 7113 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 7114 } 7115 7116 private void enforceCrossUsersPermission(int userHandle) { 7117 enforceSystemUserOrPermission(userHandle, 7118 android.Manifest.permission.INTERACT_ACROSS_USERS); 7119 } 7120 7121 private void enforceSystemUserOrPermission(int userHandle, String permission) { 7122 if (userHandle < 0) { 7123 throw new IllegalArgumentException("Invalid userId " + userHandle); 7124 } 7125 final int callingUid = mInjector.binderGetCallingUid(); 7126 if (userHandle == UserHandle.getUserId(callingUid)) { 7127 return; 7128 } 7129 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 7130 mContext.enforceCallingOrSelfPermission(permission, 7131 "Must be system or have " + permission + " permission"); 7132 } 7133 } 7134 7135 private void enforceManagedProfile(int userHandle, String message) { 7136 if(!isManagedProfile(userHandle)) { 7137 throw new SecurityException("You can not " + message + " outside a managed profile."); 7138 } 7139 } 7140 7141 private void enforceNotManagedProfile(int userHandle, String message) { 7142 if(isManagedProfile(userHandle)) { 7143 throw new SecurityException("You can not " + message + " for a managed profile."); 7144 } 7145 } 7146 7147 private void enforceDeviceOwnerOrManageUsers() { 7148 synchronized (this) { 7149 if (getActiveAdminWithPolicyForUidLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 7150 mInjector.binderGetCallingUid()) != null) { 7151 return; 7152 } 7153 } 7154 enforceManageUsers(); 7155 } 7156 7157 private void enforceProfileOwnerOrSystemUser(ComponentName admin) { 7158 synchronized (this) { 7159 if (getActiveAdminWithPolicyForUidLocked(admin, 7160 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7161 != null) { 7162 return; 7163 } 7164 } 7165 Preconditions.checkState(isCallerWithSystemUid(), 7166 "Only profile owner, device owner and system may call this method."); 7167 } 7168 7169 private void ensureCallerPackage(@Nullable String packageName) { 7170 if (packageName == null) { 7171 Preconditions.checkState(isCallerWithSystemUid(), 7172 "Only caller can omit package name"); 7173 } else { 7174 final int callingUid = mInjector.binderGetCallingUid(); 7175 final int userId = mInjector.userHandleGetCallingUserId(); 7176 try { 7177 final ApplicationInfo ai = mIPackageManager.getApplicationInfo( 7178 packageName, 0, userId); 7179 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name"); 7180 } catch (RemoteException e) { 7181 // Shouldn't happen 7182 } 7183 } 7184 } 7185 7186 private boolean isCallerWithSystemUid() { 7187 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 7188 } 7189 7190 protected int getProfileParentId(int userHandle) { 7191 final long ident = mInjector.binderClearCallingIdentity(); 7192 try { 7193 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 7194 return parentUser != null ? parentUser.id : userHandle; 7195 } finally { 7196 mInjector.binderRestoreCallingIdentity(ident); 7197 } 7198 } 7199 7200 private int getCredentialOwner(int userHandle, boolean parent) { 7201 final long ident = mInjector.binderClearCallingIdentity(); 7202 try { 7203 if (parent) { 7204 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 7205 if (parentProfile != null) { 7206 userHandle = parentProfile.id; 7207 } 7208 } 7209 return mUserManager.getCredentialOwnerProfile(userHandle); 7210 } finally { 7211 mInjector.binderRestoreCallingIdentity(ident); 7212 } 7213 } 7214 7215 private boolean isManagedProfile(int userHandle) { 7216 final UserInfo user = getUserInfo(userHandle); 7217 return user != null && user.isManagedProfile(); 7218 } 7219 7220 private void enableIfNecessary(String packageName, int userId) { 7221 try { 7222 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 7223 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 7224 userId); 7225 if (ai.enabledSetting 7226 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 7227 mIPackageManager.setApplicationEnabledSetting(packageName, 7228 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 7229 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 7230 } 7231 } catch (RemoteException e) { 7232 } 7233 } 7234 7235 @Override 7236 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 7237 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 7238 != PackageManager.PERMISSION_GRANTED) { 7239 7240 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 7241 + mInjector.binderGetCallingPid() 7242 + ", uid=" + mInjector.binderGetCallingUid()); 7243 return; 7244 } 7245 7246 synchronized (this) { 7247 pw.println("Current Device Policy Manager state:"); 7248 mOwners.dump(" ", pw); 7249 int userCount = mUserData.size(); 7250 for (int u = 0; u < userCount; u++) { 7251 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 7252 pw.println(); 7253 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 7254 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 7255 final int N = policy.mAdminList.size(); 7256 for (int i=0; i<N; i++) { 7257 ActiveAdmin ap = policy.mAdminList.get(i); 7258 if (ap != null) { 7259 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 7260 pw.println(":"); 7261 ap.dump(" ", pw); 7262 } 7263 } 7264 if (!policy.mRemovingAdmins.isEmpty()) { 7265 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 7266 + policy.mRemovingAdmins); 7267 } 7268 7269 pw.println(" "); 7270 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 7271 } 7272 pw.println(); 7273 pw.println("Encryption Status: " + getEncryptionStatusName(getEncryptionStatus())); 7274 } 7275 } 7276 7277 private String getEncryptionStatusName(int encryptionStatus) { 7278 switch (encryptionStatus) { 7279 case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE: 7280 return "inactive"; 7281 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: 7282 return "block default key"; 7283 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE: 7284 return "block"; 7285 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER: 7286 return "per-user"; 7287 case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED: 7288 return "unsupported"; 7289 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING: 7290 return "activating"; 7291 default: 7292 return "unknown"; 7293 } 7294 } 7295 7296 @Override 7297 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 7298 ComponentName activity) { 7299 Preconditions.checkNotNull(who, "ComponentName is null"); 7300 final int userHandle = UserHandle.getCallingUserId(); 7301 synchronized (this) { 7302 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7303 7304 long id = mInjector.binderClearCallingIdentity(); 7305 try { 7306 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 7307 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 7308 } catch (RemoteException re) { 7309 // Shouldn't happen 7310 } finally { 7311 mInjector.binderRestoreCallingIdentity(id); 7312 } 7313 } 7314 } 7315 7316 @Override 7317 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 7318 Preconditions.checkNotNull(who, "ComponentName is null"); 7319 final int userHandle = UserHandle.getCallingUserId(); 7320 synchronized (this) { 7321 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7322 7323 long id = mInjector.binderClearCallingIdentity(); 7324 try { 7325 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 7326 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 7327 } catch (RemoteException re) { 7328 // Shouldn't happen 7329 } finally { 7330 mInjector.binderRestoreCallingIdentity(id); 7331 } 7332 } 7333 } 7334 7335 @Override 7336 public boolean setApplicationRestrictionsManagingPackage(ComponentName admin, 7337 String packageName) { 7338 try { 7339 setDelegatedScopePreO(admin, packageName, DELEGATION_APP_RESTRICTIONS); 7340 } catch (IllegalArgumentException e) { 7341 return false; 7342 } 7343 return true; 7344 } 7345 7346 @Override 7347 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 7348 final List<String> delegatePackages = getDelegatePackages(admin, 7349 DELEGATION_APP_RESTRICTIONS); 7350 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 7351 } 7352 7353 @Override 7354 public boolean isCallerApplicationRestrictionsManagingPackage(String callerPackage) { 7355 return isCallerDelegate(callerPackage, DELEGATION_APP_RESTRICTIONS); 7356 } 7357 7358 @Override 7359 public void setApplicationRestrictions(ComponentName who, String callerPackage, 7360 String packageName, Bundle settings) { 7361 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 7362 DELEGATION_APP_RESTRICTIONS); 7363 7364 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 7365 final long id = mInjector.binderClearCallingIdentity(); 7366 try { 7367 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 7368 } finally { 7369 mInjector.binderRestoreCallingIdentity(id); 7370 } 7371 } 7372 7373 @Override 7374 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 7375 PersistableBundle args, boolean parent) { 7376 if (!mHasFeature) { 7377 return; 7378 } 7379 Preconditions.checkNotNull(admin, "admin is null"); 7380 Preconditions.checkNotNull(agent, "agent is null"); 7381 final int userHandle = UserHandle.getCallingUserId(); 7382 synchronized (this) { 7383 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 7384 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 7385 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 7386 saveSettingsLocked(userHandle); 7387 } 7388 } 7389 7390 @Override 7391 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 7392 ComponentName agent, int userHandle, boolean parent) { 7393 if (!mHasFeature) { 7394 return null; 7395 } 7396 Preconditions.checkNotNull(agent, "agent null"); 7397 enforceFullCrossUsersPermission(userHandle); 7398 7399 synchronized (this) { 7400 final String componentName = agent.flattenToString(); 7401 if (admin != null) { 7402 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle, parent); 7403 if (ap == null) return null; 7404 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 7405 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 7406 List<PersistableBundle> result = new ArrayList<>(); 7407 result.add(trustAgentInfo.options); 7408 return result; 7409 } 7410 7411 // Return strictest policy for this user and profiles that are visible from this user. 7412 List<PersistableBundle> result = null; 7413 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 7414 // of the options. If any admin doesn't have options, discard options for the rest 7415 // and return null. 7416 List<ActiveAdmin> admins = 7417 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 7418 boolean allAdminsHaveOptions = true; 7419 final int N = admins.size(); 7420 for (int i = 0; i < N; i++) { 7421 final ActiveAdmin active = admins.get(i); 7422 7423 final boolean disablesTrust = (active.disabledKeyguardFeatures 7424 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 7425 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 7426 if (info != null && info.options != null && !info.options.isEmpty()) { 7427 if (disablesTrust) { 7428 if (result == null) { 7429 result = new ArrayList<>(); 7430 } 7431 result.add(info.options); 7432 } else { 7433 Log.w(LOG_TAG, "Ignoring admin " + active.info 7434 + " because it has trust options but doesn't declare " 7435 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 7436 } 7437 } else if (disablesTrust) { 7438 allAdminsHaveOptions = false; 7439 break; 7440 } 7441 } 7442 return allAdminsHaveOptions ? result : null; 7443 } 7444 } 7445 7446 @Override 7447 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 7448 Preconditions.checkNotNull(who, "ComponentName is null"); 7449 synchronized (this) { 7450 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7451 7452 int userHandle = UserHandle.getCallingUserId(); 7453 DevicePolicyData userData = getUserData(userHandle); 7454 userData.mRestrictionsProvider = permissionProvider; 7455 saveSettingsLocked(userHandle); 7456 } 7457 } 7458 7459 @Override 7460 public ComponentName getRestrictionsProvider(int userHandle) { 7461 synchronized (this) { 7462 if (!isCallerWithSystemUid()) { 7463 throw new SecurityException("Only the system can query the permission provider"); 7464 } 7465 DevicePolicyData userData = getUserData(userHandle); 7466 return userData != null ? userData.mRestrictionsProvider : null; 7467 } 7468 } 7469 7470 @Override 7471 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 7472 Preconditions.checkNotNull(who, "ComponentName is null"); 7473 int callingUserId = UserHandle.getCallingUserId(); 7474 synchronized (this) { 7475 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7476 7477 long id = mInjector.binderClearCallingIdentity(); 7478 try { 7479 UserInfo parent = mUserManager.getProfileParent(callingUserId); 7480 if (parent == null) { 7481 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 7482 + "parent"); 7483 return; 7484 } 7485 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 7486 mIPackageManager.addCrossProfileIntentFilter( 7487 filter, who.getPackageName(), callingUserId, parent.id, 0); 7488 } 7489 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 7490 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 7491 parent.id, callingUserId, 0); 7492 } 7493 } catch (RemoteException re) { 7494 // Shouldn't happen 7495 } finally { 7496 mInjector.binderRestoreCallingIdentity(id); 7497 } 7498 } 7499 } 7500 7501 @Override 7502 public void clearCrossProfileIntentFilters(ComponentName who) { 7503 Preconditions.checkNotNull(who, "ComponentName is null"); 7504 int callingUserId = UserHandle.getCallingUserId(); 7505 synchronized (this) { 7506 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7507 long id = mInjector.binderClearCallingIdentity(); 7508 try { 7509 UserInfo parent = mUserManager.getProfileParent(callingUserId); 7510 if (parent == null) { 7511 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 7512 + "parent"); 7513 return; 7514 } 7515 // Removing those that go from the managed profile to the parent. 7516 mIPackageManager.clearCrossProfileIntentFilters( 7517 callingUserId, who.getPackageName()); 7518 // And those that go from the parent to the managed profile. 7519 // If we want to support multiple managed profiles, we will have to only remove 7520 // those that have callingUserId as their target. 7521 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 7522 } catch (RemoteException re) { 7523 // Shouldn't happen 7524 } finally { 7525 mInjector.binderRestoreCallingIdentity(id); 7526 } 7527 } 7528 } 7529 7530 /** 7531 * @return true if all packages in enabledPackages are either in the list 7532 * permittedList or are a system app. 7533 */ 7534 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 7535 List<String> permittedList, int userIdToCheck) { 7536 long id = mInjector.binderClearCallingIdentity(); 7537 try { 7538 // If we have an enabled packages list for a managed profile the packages 7539 // we should check are installed for the parent user. 7540 UserInfo user = getUserInfo(userIdToCheck); 7541 if (user.isManagedProfile()) { 7542 userIdToCheck = user.profileGroupId; 7543 } 7544 7545 for (String enabledPackage : enabledPackages) { 7546 boolean systemService = false; 7547 try { 7548 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 7549 enabledPackage, PackageManager.MATCH_UNINSTALLED_PACKAGES, 7550 userIdToCheck); 7551 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 7552 } catch (RemoteException e) { 7553 Log.i(LOG_TAG, "Can't talk to package managed", e); 7554 } 7555 if (!systemService && !permittedList.contains(enabledPackage)) { 7556 return false; 7557 } 7558 } 7559 } finally { 7560 mInjector.binderRestoreCallingIdentity(id); 7561 } 7562 return true; 7563 } 7564 7565 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 7566 // Not using AccessibilityManager.getInstance because that guesses 7567 // at the user you require based on callingUid and caches for a given 7568 // process. 7569 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 7570 IAccessibilityManager service = iBinder == null 7571 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 7572 return new AccessibilityManager(mContext, service, userId); 7573 } 7574 7575 @Override 7576 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 7577 if (!mHasFeature) { 7578 return false; 7579 } 7580 Preconditions.checkNotNull(who, "ComponentName is null"); 7581 7582 if (packageList != null) { 7583 int userId = UserHandle.getCallingUserId(); 7584 List<AccessibilityServiceInfo> enabledServices = null; 7585 long id = mInjector.binderClearCallingIdentity(); 7586 try { 7587 UserInfo user = getUserInfo(userId); 7588 if (user.isManagedProfile()) { 7589 userId = user.profileGroupId; 7590 } 7591 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 7592 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 7593 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 7594 } finally { 7595 mInjector.binderRestoreCallingIdentity(id); 7596 } 7597 7598 if (enabledServices != null) { 7599 List<String> enabledPackages = new ArrayList<String>(); 7600 for (AccessibilityServiceInfo service : enabledServices) { 7601 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 7602 } 7603 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7604 userId)) { 7605 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 7606 + "because it contains already enabled accesibility services."); 7607 return false; 7608 } 7609 } 7610 } 7611 7612 synchronized (this) { 7613 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7614 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7615 admin.permittedAccessiblityServices = packageList; 7616 saveSettingsLocked(UserHandle.getCallingUserId()); 7617 } 7618 return true; 7619 } 7620 7621 @Override 7622 public List getPermittedAccessibilityServices(ComponentName who) { 7623 if (!mHasFeature) { 7624 return null; 7625 } 7626 Preconditions.checkNotNull(who, "ComponentName is null"); 7627 7628 synchronized (this) { 7629 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7630 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7631 return admin.permittedAccessiblityServices; 7632 } 7633 } 7634 7635 @Override 7636 public List getPermittedAccessibilityServicesForUser(int userId) { 7637 if (!mHasFeature) { 7638 return null; 7639 } 7640 synchronized (this) { 7641 List<String> result = null; 7642 // If we have multiple profiles we return the intersection of the 7643 // permitted lists. This can happen in cases where we have a device 7644 // and profile owner. 7645 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 7646 for (int profileId : profileIds) { 7647 // Just loop though all admins, only device or profiles 7648 // owners can have permitted lists set. 7649 DevicePolicyData policy = getUserDataUnchecked(profileId); 7650 final int N = policy.mAdminList.size(); 7651 for (int j = 0; j < N; j++) { 7652 ActiveAdmin admin = policy.mAdminList.get(j); 7653 List<String> fromAdmin = admin.permittedAccessiblityServices; 7654 if (fromAdmin != null) { 7655 if (result == null) { 7656 result = new ArrayList<>(fromAdmin); 7657 } else { 7658 result.retainAll(fromAdmin); 7659 } 7660 } 7661 } 7662 } 7663 7664 // If we have a permitted list add all system accessibility services. 7665 if (result != null) { 7666 long id = mInjector.binderClearCallingIdentity(); 7667 try { 7668 UserInfo user = getUserInfo(userId); 7669 if (user.isManagedProfile()) { 7670 userId = user.profileGroupId; 7671 } 7672 AccessibilityManager accessibilityManager = 7673 getAccessibilityManagerForUser(userId); 7674 List<AccessibilityServiceInfo> installedServices = 7675 accessibilityManager.getInstalledAccessibilityServiceList(); 7676 7677 if (installedServices != null) { 7678 for (AccessibilityServiceInfo service : installedServices) { 7679 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 7680 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7681 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7682 result.add(serviceInfo.packageName); 7683 } 7684 } 7685 } 7686 } finally { 7687 mInjector.binderRestoreCallingIdentity(id); 7688 } 7689 } 7690 7691 return result; 7692 } 7693 } 7694 7695 @Override 7696 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 7697 int userHandle) { 7698 if (!mHasFeature) { 7699 return true; 7700 } 7701 Preconditions.checkNotNull(who, "ComponentName is null"); 7702 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7703 if (!isCallerWithSystemUid()){ 7704 throw new SecurityException( 7705 "Only the system can query if an accessibility service is disabled by admin"); 7706 } 7707 synchronized (this) { 7708 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7709 if (admin == null) { 7710 return false; 7711 } 7712 if (admin.permittedAccessiblityServices == null) { 7713 return true; 7714 } 7715 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 7716 admin.permittedAccessiblityServices, userHandle); 7717 } 7718 } 7719 7720 private boolean checkCallerIsCurrentUserOrProfile() { 7721 int callingUserId = UserHandle.getCallingUserId(); 7722 long token = mInjector.binderClearCallingIdentity(); 7723 try { 7724 UserInfo currentUser; 7725 UserInfo callingUser = getUserInfo(callingUserId); 7726 try { 7727 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7728 } catch (RemoteException e) { 7729 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 7730 return false; 7731 } 7732 7733 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 7734 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 7735 + "of a user that isn't the foreground user."); 7736 return false; 7737 } 7738 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 7739 Slog.e(LOG_TAG, "Cannot set permitted input methods " 7740 + "of a user that isn't the foreground user."); 7741 return false; 7742 } 7743 } finally { 7744 mInjector.binderRestoreCallingIdentity(token); 7745 } 7746 return true; 7747 } 7748 7749 @Override 7750 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 7751 if (!mHasFeature) { 7752 return false; 7753 } 7754 Preconditions.checkNotNull(who, "ComponentName is null"); 7755 7756 // TODO When InputMethodManager supports per user calls remove 7757 // this restriction. 7758 if (!checkCallerIsCurrentUserOrProfile()) { 7759 return false; 7760 } 7761 7762 if (packageList != null) { 7763 // InputMethodManager fetches input methods for current user. 7764 // So this can only be set when calling user is the current user 7765 // or parent is current user in case of managed profiles. 7766 InputMethodManager inputMethodManager = 7767 mContext.getSystemService(InputMethodManager.class); 7768 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 7769 7770 if (enabledImes != null) { 7771 List<String> enabledPackages = new ArrayList<String>(); 7772 for (InputMethodInfo ime : enabledImes) { 7773 enabledPackages.add(ime.getPackageName()); 7774 } 7775 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7776 mInjector.binderGetCallingUserHandle().getIdentifier())) { 7777 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 7778 + "because it contains already enabled input method."); 7779 return false; 7780 } 7781 } 7782 } 7783 7784 synchronized (this) { 7785 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7786 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7787 admin.permittedInputMethods = packageList; 7788 saveSettingsLocked(UserHandle.getCallingUserId()); 7789 } 7790 return true; 7791 } 7792 7793 @Override 7794 public List getPermittedInputMethods(ComponentName who) { 7795 if (!mHasFeature) { 7796 return null; 7797 } 7798 Preconditions.checkNotNull(who, "ComponentName is null"); 7799 7800 synchronized (this) { 7801 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7802 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7803 return admin.permittedInputMethods; 7804 } 7805 } 7806 7807 @Override 7808 public List getPermittedInputMethodsForCurrentUser() { 7809 UserInfo currentUser; 7810 try { 7811 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7812 } catch (RemoteException e) { 7813 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 7814 // Activity managed is dead, just allow all IMEs 7815 return null; 7816 } 7817 7818 int userId = currentUser.id; 7819 synchronized (this) { 7820 List<String> result = null; 7821 // If we have multiple profiles we return the intersection of the 7822 // permitted lists. This can happen in cases where we have a device 7823 // and profile owner. 7824 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 7825 for (int profileId : profileIds) { 7826 // Just loop though all admins, only device or profiles 7827 // owners can have permitted lists set. 7828 DevicePolicyData policy = getUserDataUnchecked(profileId); 7829 final int N = policy.mAdminList.size(); 7830 for (int j = 0; j < N; j++) { 7831 ActiveAdmin admin = policy.mAdminList.get(j); 7832 List<String> fromAdmin = admin.permittedInputMethods; 7833 if (fromAdmin != null) { 7834 if (result == null) { 7835 result = new ArrayList<String>(fromAdmin); 7836 } else { 7837 result.retainAll(fromAdmin); 7838 } 7839 } 7840 } 7841 } 7842 7843 // If we have a permitted list add all system input methods. 7844 if (result != null) { 7845 InputMethodManager inputMethodManager = 7846 mContext.getSystemService(InputMethodManager.class); 7847 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 7848 long id = mInjector.binderClearCallingIdentity(); 7849 try { 7850 if (imes != null) { 7851 for (InputMethodInfo ime : imes) { 7852 ServiceInfo serviceInfo = ime.getServiceInfo(); 7853 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7854 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7855 result.add(serviceInfo.packageName); 7856 } 7857 } 7858 } 7859 } finally { 7860 mInjector.binderRestoreCallingIdentity(id); 7861 } 7862 } 7863 return result; 7864 } 7865 } 7866 7867 @Override 7868 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 7869 int userHandle) { 7870 if (!mHasFeature) { 7871 return true; 7872 } 7873 Preconditions.checkNotNull(who, "ComponentName is null"); 7874 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7875 if (!isCallerWithSystemUid()) { 7876 throw new SecurityException( 7877 "Only the system can query if an input method is disabled by admin"); 7878 } 7879 synchronized (this) { 7880 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7881 if (admin == null) { 7882 return false; 7883 } 7884 if (admin.permittedInputMethods == null) { 7885 return true; 7886 } 7887 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 7888 admin.permittedInputMethods, userHandle); 7889 } 7890 } 7891 7892 private void sendAdminEnabledBroadcastLocked(int userHandle) { 7893 DevicePolicyData policyData = getUserData(userHandle); 7894 if (policyData.mAdminBroadcastPending) { 7895 // Send the initialization data to profile owner and delete the data 7896 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 7897 if (admin != null) { 7898 PersistableBundle initBundle = policyData.mInitBundle; 7899 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 7900 initBundle == null ? null : new Bundle(initBundle), null); 7901 } 7902 policyData.mInitBundle = null; 7903 policyData.mAdminBroadcastPending = false; 7904 saveSettingsLocked(userHandle); 7905 } 7906 } 7907 7908 @Override 7909 public UserHandle createAndManageUser(ComponentName admin, String name, 7910 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 7911 Preconditions.checkNotNull(admin, "admin is null"); 7912 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 7913 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 7914 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 7915 + admin + " are not in the same package"); 7916 } 7917 // Only allow the system user to use this method 7918 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 7919 throw new SecurityException("createAndManageUser was called from non-system user"); 7920 } 7921 if (!mInjector.userManagerIsSplitSystemUser() 7922 && (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 7923 throw new IllegalArgumentException( 7924 "Ephemeral users are only supported on systems with a split system user."); 7925 } 7926 // Create user. 7927 UserHandle user = null; 7928 synchronized (this) { 7929 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7930 7931 final long id = mInjector.binderClearCallingIdentity(); 7932 try { 7933 int userInfoFlags = 0; 7934 if ((flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 7935 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 7936 } 7937 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 7938 userInfoFlags); 7939 if (userInfo != null) { 7940 user = userInfo.getUserHandle(); 7941 } 7942 } finally { 7943 mInjector.binderRestoreCallingIdentity(id); 7944 } 7945 } 7946 if (user == null) { 7947 return null; 7948 } 7949 // Set admin. 7950 final long id = mInjector.binderClearCallingIdentity(); 7951 try { 7952 final String adminPkg = admin.getPackageName(); 7953 7954 final int userHandle = user.getIdentifier(); 7955 try { 7956 // Install the profile owner if not present. 7957 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 7958 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle, 7959 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 7960 } 7961 } catch (RemoteException e) { 7962 Slog.e(LOG_TAG, "Failed to make remote calls for createAndManageUser, " 7963 + "removing created user", e); 7964 mUserManager.removeUser(user.getIdentifier()); 7965 return null; 7966 } 7967 7968 setActiveAdmin(profileOwner, true, userHandle); 7969 // User is not started yet, the broadcast by setActiveAdmin will not be received. 7970 // So we store adminExtras for broadcasting when the user starts for first time. 7971 synchronized(this) { 7972 DevicePolicyData policyData = getUserData(userHandle); 7973 policyData.mInitBundle = adminExtras; 7974 policyData.mAdminBroadcastPending = true; 7975 saveSettingsLocked(userHandle); 7976 } 7977 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 7978 setProfileOwner(profileOwner, ownerName, userHandle); 7979 7980 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 7981 Settings.Secure.putIntForUser(mContext.getContentResolver(), 7982 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 7983 } 7984 7985 return user; 7986 } finally { 7987 mInjector.binderRestoreCallingIdentity(id); 7988 } 7989 } 7990 7991 @Override 7992 public boolean removeUser(ComponentName who, UserHandle userHandle) { 7993 Preconditions.checkNotNull(who, "ComponentName is null"); 7994 synchronized (this) { 7995 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7996 } 7997 7998 final int callingUserId = mInjector.userHandleGetCallingUserId(); 7999 final long id = mInjector.binderClearCallingIdentity(); 8000 try { 8001 String restriction = isManagedProfile(userHandle.getIdentifier()) 8002 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE 8003 : UserManager.DISALLOW_REMOVE_USER; 8004 if (isAdminAffectedByRestriction(who, restriction, callingUserId)) { 8005 Log.w(LOG_TAG, "The device owner cannot remove a user because " 8006 + restriction + " is enabled, and was not set by the device owner"); 8007 return false; 8008 } 8009 return mUserManagerInternal.removeUserEvenWhenDisallowed(userHandle.getIdentifier()); 8010 } finally { 8011 mInjector.binderRestoreCallingIdentity(id); 8012 } 8013 } 8014 8015 private boolean isAdminAffectedByRestriction( 8016 ComponentName admin, String userRestriction, int userId) { 8017 switch(mUserManager.getUserRestrictionSource(userRestriction, UserHandle.of(userId))) { 8018 case UserManager.RESTRICTION_NOT_SET: 8019 return false; 8020 case UserManager.RESTRICTION_SOURCE_DEVICE_OWNER: 8021 return !isDeviceOwner(admin, userId); 8022 case UserManager.RESTRICTION_SOURCE_PROFILE_OWNER: 8023 return !isProfileOwner(admin, userId); 8024 default: 8025 return true; 8026 } 8027 } 8028 8029 @Override 8030 public boolean switchUser(ComponentName who, UserHandle userHandle) { 8031 Preconditions.checkNotNull(who, "ComponentName is null"); 8032 synchronized (this) { 8033 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8034 8035 long id = mInjector.binderClearCallingIdentity(); 8036 try { 8037 int userId = UserHandle.USER_SYSTEM; 8038 if (userHandle != null) { 8039 userId = userHandle.getIdentifier(); 8040 } 8041 return mInjector.getIActivityManager().switchUser(userId); 8042 } catch (RemoteException e) { 8043 Log.e(LOG_TAG, "Couldn't switch user", e); 8044 return false; 8045 } finally { 8046 mInjector.binderRestoreCallingIdentity(id); 8047 } 8048 } 8049 } 8050 8051 @Override 8052 public Bundle getApplicationRestrictions(ComponentName who, String callerPackage, 8053 String packageName) { 8054 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8055 DELEGATION_APP_RESTRICTIONS); 8056 8057 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 8058 final long id = mInjector.binderClearCallingIdentity(); 8059 try { 8060 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 8061 // if no restrictions were saved, mUserManager.getApplicationRestrictions 8062 // returns null, but DPM method should return an empty Bundle as per JavaDoc 8063 return bundle != null ? bundle : Bundle.EMPTY; 8064 } finally { 8065 mInjector.binderRestoreCallingIdentity(id); 8066 } 8067 } 8068 8069 @Override 8070 public String[] setPackagesSuspended(ComponentName who, String callerPackage, 8071 String[] packageNames, boolean suspended) { 8072 int callingUserId = UserHandle.getCallingUserId(); 8073 synchronized (this) { 8074 // Ensure the caller is a DO/PO or a package access delegate. 8075 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8076 DELEGATION_PACKAGE_ACCESS); 8077 8078 long id = mInjector.binderClearCallingIdentity(); 8079 try { 8080 return mIPackageManager.setPackagesSuspendedAsUser( 8081 packageNames, suspended, callingUserId); 8082 } catch (RemoteException re) { 8083 // Shouldn't happen. 8084 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 8085 } finally { 8086 mInjector.binderRestoreCallingIdentity(id); 8087 } 8088 return packageNames; 8089 } 8090 } 8091 8092 @Override 8093 public boolean isPackageSuspended(ComponentName who, String callerPackage, String packageName) { 8094 int callingUserId = UserHandle.getCallingUserId(); 8095 synchronized (this) { 8096 // Ensure the caller is a DO/PO or a package access delegate. 8097 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8098 DELEGATION_PACKAGE_ACCESS); 8099 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8100 8101 long id = mInjector.binderClearCallingIdentity(); 8102 try { 8103 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 8104 } catch (RemoteException re) { 8105 // Shouldn't happen. 8106 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 8107 } finally { 8108 mInjector.binderRestoreCallingIdentity(id); 8109 } 8110 return false; 8111 } 8112 } 8113 8114 @Override 8115 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 8116 Preconditions.checkNotNull(who, "ComponentName is null"); 8117 if (!UserRestrictionsUtils.isValidRestriction(key)) { 8118 return; 8119 } 8120 8121 final int userHandle = mInjector.userHandleGetCallingUserId(); 8122 synchronized (this) { 8123 final ActiveAdmin activeAdmin = 8124 getActiveAdminForCallerLocked(who, 8125 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8126 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 8127 if (isDeviceOwner) { 8128 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 8129 throw new SecurityException("Device owner cannot set user restriction " + key); 8130 } 8131 } else { // profile owner 8132 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 8133 throw new SecurityException("Profile owner cannot set user restriction " + key); 8134 } 8135 } 8136 8137 // Save the restriction to ActiveAdmin. 8138 final Bundle restrictions = activeAdmin.ensureUserRestrictions(); 8139 if (enabledFromThisOwner) { 8140 restrictions.putBoolean(key, true); 8141 } else { 8142 restrictions.remove(key); 8143 } 8144 saveUserRestrictionsLocked(userHandle); 8145 } 8146 } 8147 8148 private void saveUserRestrictionsLocked(int userId) { 8149 saveSettingsLocked(userId); 8150 pushUserRestrictions(userId); 8151 sendChangedNotification(userId); 8152 } 8153 8154 private void pushUserRestrictions(int userId) { 8155 synchronized (this) { 8156 final boolean isDeviceOwner = mOwners.isDeviceOwnerUserId(userId); 8157 final Bundle userRestrictions; 8158 // Whether device owner enforces camera restriction. 8159 boolean disallowCameraGlobally = false; 8160 8161 if (isDeviceOwner) { 8162 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 8163 if (deviceOwner == null) { 8164 return; // Shouldn't happen. 8165 } 8166 userRestrictions = deviceOwner.userRestrictions; 8167 // DO can disable camera globally. 8168 disallowCameraGlobally = deviceOwner.disableCamera; 8169 } else { 8170 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 8171 userRestrictions = profileOwner != null ? profileOwner.userRestrictions : null; 8172 } 8173 8174 // Whether any admin enforces camera restriction. 8175 final int cameraRestrictionScope = 8176 getCameraRestrictionScopeLocked(userId, disallowCameraGlobally); 8177 8178 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, userRestrictions, 8179 isDeviceOwner, cameraRestrictionScope); 8180 } 8181 } 8182 8183 /** 8184 * Get the scope of camera restriction for a given user if any. 8185 */ 8186 private int getCameraRestrictionScopeLocked(int userId, boolean disallowCameraGlobally) { 8187 if (disallowCameraGlobally) { 8188 return UserManagerInternal.CAMERA_DISABLED_GLOBALLY; 8189 } else if (getCameraDisabled( 8190 /* who= */ null, userId, /* mergeDeviceOwnerRestriction= */ false)) { 8191 return UserManagerInternal.CAMERA_DISABLED_LOCALLY; 8192 } 8193 return UserManagerInternal.CAMERA_NOT_DISABLED; 8194 } 8195 8196 @Override 8197 public Bundle getUserRestrictions(ComponentName who) { 8198 if (!mHasFeature) { 8199 return null; 8200 } 8201 Preconditions.checkNotNull(who, "ComponentName is null"); 8202 synchronized (this) { 8203 final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who, 8204 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8205 return activeAdmin.userRestrictions; 8206 } 8207 } 8208 8209 @Override 8210 public boolean setApplicationHidden(ComponentName who, String callerPackage, String packageName, 8211 boolean hidden) { 8212 int callingUserId = UserHandle.getCallingUserId(); 8213 synchronized (this) { 8214 // Ensure the caller is a DO/PO or a package access delegate. 8215 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8216 DELEGATION_PACKAGE_ACCESS); 8217 8218 long id = mInjector.binderClearCallingIdentity(); 8219 try { 8220 return mIPackageManager.setApplicationHiddenSettingAsUser( 8221 packageName, hidden, callingUserId); 8222 } catch (RemoteException re) { 8223 // shouldn't happen 8224 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 8225 } finally { 8226 mInjector.binderRestoreCallingIdentity(id); 8227 } 8228 return false; 8229 } 8230 } 8231 8232 @Override 8233 public boolean isApplicationHidden(ComponentName who, String callerPackage, 8234 String packageName) { 8235 int callingUserId = UserHandle.getCallingUserId(); 8236 synchronized (this) { 8237 // Ensure the caller is a DO/PO or a package access delegate. 8238 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8239 DELEGATION_PACKAGE_ACCESS); 8240 8241 long id = mInjector.binderClearCallingIdentity(); 8242 try { 8243 return mIPackageManager.getApplicationHiddenSettingAsUser( 8244 packageName, callingUserId); 8245 } catch (RemoteException re) { 8246 // shouldn't happen 8247 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 8248 } finally { 8249 mInjector.binderRestoreCallingIdentity(id); 8250 } 8251 return false; 8252 } 8253 } 8254 8255 @Override 8256 public void enableSystemApp(ComponentName who, String callerPackage, String packageName) { 8257 synchronized (this) { 8258 // Ensure the caller is a DO/PO or an enable system app delegate. 8259 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8260 DELEGATION_ENABLE_SYSTEM_APP); 8261 8262 int userId = UserHandle.getCallingUserId(); 8263 long id = mInjector.binderClearCallingIdentity(); 8264 8265 try { 8266 if (VERBOSE_LOG) { 8267 Slog.v(LOG_TAG, "installing " + packageName + " for " 8268 + userId); 8269 } 8270 8271 int parentUserId = getProfileParentId(userId); 8272 if (!isSystemApp(mIPackageManager, packageName, parentUserId)) { 8273 throw new IllegalArgumentException("Only system apps can be enabled this way."); 8274 } 8275 8276 // Install the app. 8277 mIPackageManager.installExistingPackageAsUser(packageName, userId, 8278 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8279 8280 } catch (RemoteException re) { 8281 // shouldn't happen 8282 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 8283 } finally { 8284 mInjector.binderRestoreCallingIdentity(id); 8285 } 8286 } 8287 } 8288 8289 @Override 8290 public int enableSystemAppWithIntent(ComponentName who, String callerPackage, Intent intent) { 8291 synchronized (this) { 8292 // Ensure the caller is a DO/PO or an enable system app delegate. 8293 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8294 DELEGATION_ENABLE_SYSTEM_APP); 8295 8296 int userId = UserHandle.getCallingUserId(); 8297 long id = mInjector.binderClearCallingIdentity(); 8298 8299 try { 8300 int parentUserId = getProfileParentId(userId); 8301 List<ResolveInfo> activitiesToEnable = mIPackageManager 8302 .queryIntentActivities(intent, 8303 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 8304 PackageManager.MATCH_DIRECT_BOOT_AWARE 8305 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 8306 parentUserId) 8307 .getList(); 8308 8309 if (VERBOSE_LOG) { 8310 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 8311 } 8312 int numberOfAppsInstalled = 0; 8313 if (activitiesToEnable != null) { 8314 for (ResolveInfo info : activitiesToEnable) { 8315 if (info.activityInfo != null) { 8316 String packageName = info.activityInfo.packageName; 8317 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 8318 numberOfAppsInstalled++; 8319 mIPackageManager.installExistingPackageAsUser(packageName, userId, 8320 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8321 } else { 8322 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 8323 + " system app"); 8324 } 8325 } 8326 } 8327 } 8328 return numberOfAppsInstalled; 8329 } catch (RemoteException e) { 8330 // shouldn't happen 8331 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 8332 return 0; 8333 } finally { 8334 mInjector.binderRestoreCallingIdentity(id); 8335 } 8336 } 8337 } 8338 8339 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 8340 throws RemoteException { 8341 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, MATCH_UNINSTALLED_PACKAGES, 8342 userId); 8343 if (appInfo == null) { 8344 throw new IllegalArgumentException("The application " + packageName + 8345 " is not present on this device"); 8346 } 8347 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 8348 } 8349 8350 @Override 8351 public void setAccountManagementDisabled(ComponentName who, String accountType, 8352 boolean disabled) { 8353 if (!mHasFeature) { 8354 return; 8355 } 8356 Preconditions.checkNotNull(who, "ComponentName is null"); 8357 synchronized (this) { 8358 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 8359 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8360 if (disabled) { 8361 ap.accountTypesWithManagementDisabled.add(accountType); 8362 } else { 8363 ap.accountTypesWithManagementDisabled.remove(accountType); 8364 } 8365 saveSettingsLocked(UserHandle.getCallingUserId()); 8366 } 8367 } 8368 8369 @Override 8370 public String[] getAccountTypesWithManagementDisabled() { 8371 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 8372 } 8373 8374 @Override 8375 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 8376 enforceFullCrossUsersPermission(userId); 8377 if (!mHasFeature) { 8378 return null; 8379 } 8380 synchronized (this) { 8381 DevicePolicyData policy = getUserData(userId); 8382 final int N = policy.mAdminList.size(); 8383 ArraySet<String> resultSet = new ArraySet<>(); 8384 for (int i = 0; i < N; i++) { 8385 ActiveAdmin admin = policy.mAdminList.get(i); 8386 resultSet.addAll(admin.accountTypesWithManagementDisabled); 8387 } 8388 return resultSet.toArray(new String[resultSet.size()]); 8389 } 8390 } 8391 8392 @Override 8393 public void setUninstallBlocked(ComponentName who, String callerPackage, String packageName, 8394 boolean uninstallBlocked) { 8395 final int userId = UserHandle.getCallingUserId(); 8396 synchronized (this) { 8397 // Ensure the caller is a DO/PO or a block uninstall delegate 8398 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8399 DELEGATION_BLOCK_UNINSTALL); 8400 8401 long id = mInjector.binderClearCallingIdentity(); 8402 try { 8403 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 8404 } catch (RemoteException re) { 8405 // Shouldn't happen. 8406 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 8407 } finally { 8408 mInjector.binderRestoreCallingIdentity(id); 8409 } 8410 } 8411 } 8412 8413 @Override 8414 public boolean isUninstallBlocked(ComponentName who, String packageName) { 8415 // This function should return true if and only if the package is blocked by 8416 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 8417 // when the package is a system app, or when it is an active device admin. 8418 final int userId = UserHandle.getCallingUserId(); 8419 8420 synchronized (this) { 8421 if (who != null) { 8422 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8423 } 8424 8425 long id = mInjector.binderClearCallingIdentity(); 8426 try { 8427 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 8428 } catch (RemoteException re) { 8429 // Shouldn't happen. 8430 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 8431 } finally { 8432 mInjector.binderRestoreCallingIdentity(id); 8433 } 8434 } 8435 return false; 8436 } 8437 8438 @Override 8439 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 8440 if (!mHasFeature) { 8441 return; 8442 } 8443 Preconditions.checkNotNull(who, "ComponentName is null"); 8444 synchronized (this) { 8445 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8446 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8447 if (admin.disableCallerId != disabled) { 8448 admin.disableCallerId = disabled; 8449 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 8450 } 8451 } 8452 } 8453 8454 @Override 8455 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 8456 if (!mHasFeature) { 8457 return false; 8458 } 8459 Preconditions.checkNotNull(who, "ComponentName is null"); 8460 synchronized (this) { 8461 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8462 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8463 return admin.disableCallerId; 8464 } 8465 } 8466 8467 @Override 8468 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 8469 enforceCrossUsersPermission(userId); 8470 synchronized (this) { 8471 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8472 return (admin != null) ? admin.disableCallerId : false; 8473 } 8474 } 8475 8476 @Override 8477 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 8478 if (!mHasFeature) { 8479 return; 8480 } 8481 Preconditions.checkNotNull(who, "ComponentName is null"); 8482 synchronized (this) { 8483 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8484 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8485 if (admin.disableContactsSearch != disabled) { 8486 admin.disableContactsSearch = disabled; 8487 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 8488 } 8489 } 8490 } 8491 8492 @Override 8493 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 8494 if (!mHasFeature) { 8495 return false; 8496 } 8497 Preconditions.checkNotNull(who, "ComponentName is null"); 8498 synchronized (this) { 8499 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8500 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8501 return admin.disableContactsSearch; 8502 } 8503 } 8504 8505 @Override 8506 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 8507 enforceCrossUsersPermission(userId); 8508 synchronized (this) { 8509 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8510 return (admin != null) ? admin.disableContactsSearch : false; 8511 } 8512 } 8513 8514 @Override 8515 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 8516 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 8517 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 8518 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 8519 final int callingUserId = UserHandle.getCallingUserId(); 8520 8521 final long ident = mInjector.binderClearCallingIdentity(); 8522 try { 8523 synchronized (this) { 8524 final int managedUserId = getManagedUserId(callingUserId); 8525 if (managedUserId < 0) { 8526 return; 8527 } 8528 if (isCrossProfileQuickContactDisabled(managedUserId)) { 8529 if (VERBOSE_LOG) { 8530 Log.v(LOG_TAG, 8531 "Cross-profile contacts access disabled for user " + managedUserId); 8532 } 8533 return; 8534 } 8535 ContactsInternal.startQuickContactWithErrorToastForUser( 8536 mContext, intent, new UserHandle(managedUserId)); 8537 } 8538 } finally { 8539 mInjector.binderRestoreCallingIdentity(ident); 8540 } 8541 } 8542 8543 /** 8544 * @return true if cross-profile QuickContact is disabled 8545 */ 8546 private boolean isCrossProfileQuickContactDisabled(int userId) { 8547 return getCrossProfileCallerIdDisabledForUser(userId) 8548 && getCrossProfileContactsSearchDisabledForUser(userId); 8549 } 8550 8551 /** 8552 * @return the user ID of the managed user that is linked to the current user, if any. 8553 * Otherwise -1. 8554 */ 8555 public int getManagedUserId(int callingUserId) { 8556 if (VERBOSE_LOG) { 8557 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 8558 } 8559 8560 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 8561 if (ui.id == callingUserId || !ui.isManagedProfile()) { 8562 continue; // Caller user self, or not a managed profile. Skip. 8563 } 8564 if (VERBOSE_LOG) { 8565 Log.v(LOG_TAG, "Managed user=" + ui.id); 8566 } 8567 return ui.id; 8568 } 8569 if (VERBOSE_LOG) { 8570 Log.v(LOG_TAG, "Managed user not found."); 8571 } 8572 return -1; 8573 } 8574 8575 @Override 8576 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 8577 if (!mHasFeature) { 8578 return; 8579 } 8580 Preconditions.checkNotNull(who, "ComponentName is null"); 8581 synchronized (this) { 8582 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8583 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8584 if (admin.disableBluetoothContactSharing != disabled) { 8585 admin.disableBluetoothContactSharing = disabled; 8586 saveSettingsLocked(UserHandle.getCallingUserId()); 8587 } 8588 } 8589 } 8590 8591 @Override 8592 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 8593 if (!mHasFeature) { 8594 return false; 8595 } 8596 Preconditions.checkNotNull(who, "ComponentName is null"); 8597 synchronized (this) { 8598 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8599 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8600 return admin.disableBluetoothContactSharing; 8601 } 8602 } 8603 8604 @Override 8605 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 8606 // TODO: Should there be a check to make sure this relationship is 8607 // within a profile group? 8608 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 8609 synchronized (this) { 8610 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8611 return (admin != null) ? admin.disableBluetoothContactSharing : false; 8612 } 8613 } 8614 8615 @Override 8616 public void setLockTaskPackages(ComponentName who, String[] packages) 8617 throws SecurityException { 8618 Preconditions.checkNotNull(who, "ComponentName is null"); 8619 Preconditions.checkNotNull(packages, "packages is null"); 8620 8621 synchronized (this) { 8622 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8623 final int userHandle = mInjector.userHandleGetCallingUserId(); 8624 if (isUserAffiliatedWithDeviceLocked(userHandle)) { 8625 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 8626 } else { 8627 throw new SecurityException("Admin " + who + 8628 " is neither the device owner or affiliated user's profile owner."); 8629 } 8630 } 8631 } 8632 8633 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 8634 DevicePolicyData policy = getUserData(userHandle); 8635 policy.mLockTaskPackages = packages; 8636 8637 // Store the settings persistently. 8638 saveSettingsLocked(userHandle); 8639 updateLockTaskPackagesLocked(packages, userHandle); 8640 } 8641 8642 private void maybeClearLockTaskPackagesLocked() { 8643 final long ident = mInjector.binderClearCallingIdentity(); 8644 try { 8645 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 8646 for (int i = 0; i < userInfos.size(); i++) { 8647 int userId = userInfos.get(i).id; 8648 final List<String> lockTaskPackages = getUserData(userId).mLockTaskPackages; 8649 if (!lockTaskPackages.isEmpty() && 8650 !isUserAffiliatedWithDeviceLocked(userId)) { 8651 Slog.d(LOG_TAG, 8652 "User id " + userId + " not affiliated. Clearing lock task packages"); 8653 setLockTaskPackagesLocked(userId, Collections.<String>emptyList()); 8654 } 8655 } 8656 } finally { 8657 mInjector.binderRestoreCallingIdentity(ident); 8658 } 8659 } 8660 8661 @Override 8662 public String[] getLockTaskPackages(ComponentName who) { 8663 Preconditions.checkNotNull(who, "ComponentName is null"); 8664 8665 final int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 8666 synchronized (this) { 8667 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8668 if (!isUserAffiliatedWithDeviceLocked(userHandle)) { 8669 throw new SecurityException("Admin " + who + 8670 " is neither the device owner or affiliated user's profile owner."); 8671 } 8672 8673 final List<String> packages = getUserData(userHandle).mLockTaskPackages; 8674 return packages.toArray(new String[packages.size()]); 8675 } 8676 } 8677 8678 @Override 8679 public boolean isLockTaskPermitted(String pkg) { 8680 final int userHandle = mInjector.userHandleGetCallingUserId(); 8681 synchronized (this) { 8682 return getUserData(userHandle).mLockTaskPackages.contains(pkg); 8683 } 8684 } 8685 8686 @Override 8687 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 8688 if (!isCallerWithSystemUid()) { 8689 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 8690 } 8691 synchronized (this) { 8692 final DevicePolicyData policy = getUserData(userHandle); 8693 Bundle adminExtras = new Bundle(); 8694 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 8695 for (ActiveAdmin admin : policy.mAdminList) { 8696 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 8697 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 8698 if (ownsDevice || ownsProfile) { 8699 if (isEnabled) { 8700 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 8701 adminExtras, null); 8702 } else { 8703 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 8704 } 8705 } 8706 } 8707 } 8708 } 8709 8710 @Override 8711 public void setGlobalSetting(ComponentName who, String setting, String value) { 8712 Preconditions.checkNotNull(who, "ComponentName is null"); 8713 8714 synchronized (this) { 8715 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8716 8717 // Some settings are no supported any more. However we do not want to throw a 8718 // SecurityException to avoid breaking apps. 8719 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 8720 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 8721 return; 8722 } 8723 8724 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 8725 throw new SecurityException(String.format( 8726 "Permission denial: device owners cannot update %1$s", setting)); 8727 } 8728 8729 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 8730 // ignore if it contradicts an existing policy 8731 long timeMs = getMaximumTimeToLock( 8732 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 8733 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 8734 return; 8735 } 8736 } 8737 8738 long id = mInjector.binderClearCallingIdentity(); 8739 try { 8740 mInjector.settingsGlobalPutString(setting, value); 8741 } finally { 8742 mInjector.binderRestoreCallingIdentity(id); 8743 } 8744 } 8745 } 8746 8747 @Override 8748 public void setSecureSetting(ComponentName who, String setting, String value) { 8749 Preconditions.checkNotNull(who, "ComponentName is null"); 8750 int callingUserId = mInjector.userHandleGetCallingUserId(); 8751 8752 synchronized (this) { 8753 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8754 8755 if (isDeviceOwner(who, callingUserId)) { 8756 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 8757 throw new SecurityException(String.format( 8758 "Permission denial: Device owners cannot update %1$s", setting)); 8759 } 8760 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 8761 throw new SecurityException(String.format( 8762 "Permission denial: Profile owners cannot update %1$s", setting)); 8763 } 8764 if (setting.equals(Settings.Secure.INSTALL_NON_MARKET_APPS)) { 8765 if (getTargetSdk(who.getPackageName(), callingUserId) >= Build.VERSION_CODES.O) { 8766 throw new UnsupportedOperationException(Settings.Secure.INSTALL_NON_MARKET_APPS 8767 + " is deprecated. Please use the user restriction " 8768 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES + " instead."); 8769 } 8770 if (!mUserManager.isManagedProfile(callingUserId)) { 8771 Slog.e(LOG_TAG, "Ignoring setSecureSetting request for " 8772 + setting + ". User restriction " 8773 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES 8774 + " should be used instead."); 8775 } else { 8776 try { 8777 setUserRestriction(who, UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, 8778 (Integer.parseInt(value) == 0) ? true : false); 8779 } catch (NumberFormatException exc) { 8780 Slog.e(LOG_TAG, "Invalid value: " + value + " for setting " + setting); 8781 } 8782 } 8783 return; 8784 } 8785 long id = mInjector.binderClearCallingIdentity(); 8786 try { 8787 if (Settings.Secure.DEFAULT_INPUT_METHOD.equals(setting)) { 8788 final String currentValue = mInjector.settingsSecureGetStringForUser( 8789 Settings.Secure.DEFAULT_INPUT_METHOD, callingUserId); 8790 if (!TextUtils.equals(currentValue, value)) { 8791 // Tell the content observer that the next change will be due to the owner 8792 // changing the value. There is a small race condition here that we cannot 8793 // avoid: Change notifications are sent asynchronously, so it is possible 8794 // that there are prior notifications queued up before the one we are about 8795 // to trigger. This is a corner case that will have no impact in practice. 8796 mSetupContentObserver.addPendingChangeByOwnerLocked(callingUserId); 8797 } 8798 getUserData(callingUserId).mDefaultInputMethodSet = true; 8799 saveSettingsLocked(callingUserId); 8800 } 8801 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 8802 } finally { 8803 mInjector.binderRestoreCallingIdentity(id); 8804 } 8805 } 8806 } 8807 8808 @Override 8809 public void setMasterVolumeMuted(ComponentName who, boolean on) { 8810 Preconditions.checkNotNull(who, "ComponentName is null"); 8811 synchronized (this) { 8812 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8813 setUserRestriction(who, UserManager.DISALLOW_UNMUTE_DEVICE, on); 8814 } 8815 } 8816 8817 @Override 8818 public boolean isMasterVolumeMuted(ComponentName who) { 8819 Preconditions.checkNotNull(who, "ComponentName is null"); 8820 synchronized (this) { 8821 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8822 8823 AudioManager audioManager = 8824 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 8825 return audioManager.isMasterMute(); 8826 } 8827 } 8828 8829 @Override 8830 public void setUserIcon(ComponentName who, Bitmap icon) { 8831 synchronized (this) { 8832 Preconditions.checkNotNull(who, "ComponentName is null"); 8833 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8834 8835 int userId = UserHandle.getCallingUserId(); 8836 long id = mInjector.binderClearCallingIdentity(); 8837 try { 8838 mUserManagerInternal.setUserIcon(userId, icon); 8839 } finally { 8840 mInjector.binderRestoreCallingIdentity(id); 8841 } 8842 } 8843 } 8844 8845 @Override 8846 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 8847 Preconditions.checkNotNull(who, "ComponentName is null"); 8848 synchronized (this) { 8849 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8850 } 8851 final int userId = UserHandle.getCallingUserId(); 8852 8853 long ident = mInjector.binderClearCallingIdentity(); 8854 try { 8855 // disallow disabling the keyguard if a password is currently set 8856 if (disabled && mLockPatternUtils.isSecure(userId)) { 8857 return false; 8858 } 8859 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 8860 } finally { 8861 mInjector.binderRestoreCallingIdentity(ident); 8862 } 8863 return true; 8864 } 8865 8866 @Override 8867 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 8868 int userId = UserHandle.getCallingUserId(); 8869 synchronized (this) { 8870 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8871 DevicePolicyData policy = getUserData(userId); 8872 if (policy.mStatusBarDisabled != disabled) { 8873 if (!setStatusBarDisabledInternal(disabled, userId)) { 8874 return false; 8875 } 8876 policy.mStatusBarDisabled = disabled; 8877 saveSettingsLocked(userId); 8878 } 8879 } 8880 return true; 8881 } 8882 8883 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 8884 long ident = mInjector.binderClearCallingIdentity(); 8885 try { 8886 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 8887 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 8888 if (statusBarService != null) { 8889 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 8890 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 8891 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 8892 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 8893 return true; 8894 } 8895 } catch (RemoteException e) { 8896 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 8897 } finally { 8898 mInjector.binderRestoreCallingIdentity(ident); 8899 } 8900 return false; 8901 } 8902 8903 /** 8904 * We need to update the internal state of whether a user has completed setup or a 8905 * device has paired once. After that, we ignore any changes that reset the 8906 * Settings.Secure.USER_SETUP_COMPLETE or Settings.Secure.DEVICE_PAIRED change 8907 * as we don't trust any apps that might try to reset them. 8908 * <p> 8909 * Unfortunately, we don't know which user's setup state was changed, so we write all of 8910 * them. 8911 */ 8912 void updateUserSetupCompleteAndPaired() { 8913 List<UserInfo> users = mUserManager.getUsers(true); 8914 final int N = users.size(); 8915 for (int i = 0; i < N; i++) { 8916 int userHandle = users.get(i).id; 8917 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 8918 userHandle) != 0) { 8919 DevicePolicyData policy = getUserData(userHandle); 8920 if (!policy.mUserSetupComplete) { 8921 policy.mUserSetupComplete = true; 8922 synchronized (this) { 8923 saveSettingsLocked(userHandle); 8924 } 8925 } 8926 } 8927 if (mIsWatch && mInjector.settingsSecureGetIntForUser(Settings.Secure.DEVICE_PAIRED, 0, 8928 userHandle) != 0) { 8929 DevicePolicyData policy = getUserData(userHandle); 8930 if (!policy.mPaired) { 8931 policy.mPaired = true; 8932 synchronized (this) { 8933 saveSettingsLocked(userHandle); 8934 } 8935 } 8936 } 8937 } 8938 } 8939 8940 private class SetupContentObserver extends ContentObserver { 8941 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 8942 Settings.Secure.USER_SETUP_COMPLETE); 8943 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 8944 Settings.Global.DEVICE_PROVISIONED); 8945 private final Uri mPaired = Settings.Secure.getUriFor(Settings.Secure.DEVICE_PAIRED); 8946 private final Uri mDefaultImeChanged = Settings.Secure.getUriFor( 8947 Settings.Secure.DEFAULT_INPUT_METHOD); 8948 8949 @GuardedBy("DevicePolicyManagerService.this") 8950 private Set<Integer> mUserIdsWithPendingChangesByOwner = new ArraySet<>(); 8951 8952 public SetupContentObserver(Handler handler) { 8953 super(handler); 8954 } 8955 8956 void register() { 8957 mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 8958 mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 8959 if (mIsWatch) { 8960 mInjector.registerContentObserver(mPaired, false, this, UserHandle.USER_ALL); 8961 } 8962 mInjector.registerContentObserver(mDefaultImeChanged, false, this, UserHandle.USER_ALL); 8963 } 8964 8965 private void addPendingChangeByOwnerLocked(int userId) { 8966 mUserIdsWithPendingChangesByOwner.add(userId); 8967 } 8968 8969 @Override 8970 public void onChange(boolean selfChange, Uri uri, int userId) { 8971 if (mUserSetupComplete.equals(uri) || (mIsWatch && mPaired.equals(uri))) { 8972 updateUserSetupCompleteAndPaired(); 8973 } else if (mDeviceProvisioned.equals(uri)) { 8974 synchronized (DevicePolicyManagerService.this) { 8975 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 8976 // is delayed until device is marked as provisioned. 8977 setDeviceOwnerSystemPropertyLocked(); 8978 } 8979 } else if (mDefaultImeChanged.equals(uri)) { 8980 synchronized (DevicePolicyManagerService.this) { 8981 if (mUserIdsWithPendingChangesByOwner.contains(userId)) { 8982 // This change notification was triggered by the owner changing the default 8983 // IME. Ignore it. 8984 mUserIdsWithPendingChangesByOwner.remove(userId); 8985 } else { 8986 // This change notification was triggered by the user manually changing the 8987 // default IME. 8988 getUserData(userId).mDefaultInputMethodSet = false; 8989 saveSettingsLocked(userId); 8990 } 8991 } 8992 } 8993 } 8994 } 8995 8996 @VisibleForTesting 8997 final class LocalService extends DevicePolicyManagerInternal { 8998 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 8999 9000 @Override 9001 public List<String> getCrossProfileWidgetProviders(int profileId) { 9002 synchronized (DevicePolicyManagerService.this) { 9003 if (mOwners == null) { 9004 return Collections.emptyList(); 9005 } 9006 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 9007 if (ownerComponent == null) { 9008 return Collections.emptyList(); 9009 } 9010 9011 DevicePolicyData policy = getUserDataUnchecked(profileId); 9012 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 9013 9014 if (admin == null || admin.crossProfileWidgetProviders == null 9015 || admin.crossProfileWidgetProviders.isEmpty()) { 9016 return Collections.emptyList(); 9017 } 9018 9019 return admin.crossProfileWidgetProviders; 9020 } 9021 } 9022 9023 @Override 9024 public void addOnCrossProfileWidgetProvidersChangeListener( 9025 OnCrossProfileWidgetProvidersChangeListener listener) { 9026 synchronized (DevicePolicyManagerService.this) { 9027 if (mWidgetProviderListeners == null) { 9028 mWidgetProviderListeners = new ArrayList<>(); 9029 } 9030 if (!mWidgetProviderListeners.contains(listener)) { 9031 mWidgetProviderListeners.add(listener); 9032 } 9033 } 9034 } 9035 9036 @Override 9037 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 9038 synchronized(DevicePolicyManagerService.this) { 9039 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 9040 } 9041 } 9042 9043 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 9044 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 9045 synchronized (DevicePolicyManagerService.this) { 9046 listeners = new ArrayList<>(mWidgetProviderListeners); 9047 } 9048 final int listenerCount = listeners.size(); 9049 for (int i = 0; i < listenerCount; i++) { 9050 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 9051 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 9052 } 9053 } 9054 9055 @Override 9056 public Intent createShowAdminSupportIntent(int userId, boolean useDefaultIfNoAdmin) { 9057 // This method is called from AM with its lock held, so don't take the DPMS lock. 9058 // b/29242568 9059 9060 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 9061 if (profileOwner != null) { 9062 return DevicePolicyManagerService.this 9063 .createShowAdminSupportIntent(profileOwner, userId); 9064 } 9065 9066 final Pair<Integer, ComponentName> deviceOwner = 9067 mOwners.getDeviceOwnerUserIdAndComponent(); 9068 if (deviceOwner != null && deviceOwner.first == userId) { 9069 return DevicePolicyManagerService.this 9070 .createShowAdminSupportIntent(deviceOwner.second, userId); 9071 } 9072 9073 // We're not specifying the device admin because there isn't one. 9074 if (useDefaultIfNoAdmin) { 9075 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 9076 } 9077 return null; 9078 } 9079 9080 @Override 9081 public Intent createUserRestrictionSupportIntent(int userId, String userRestriction) { 9082 int source; 9083 long ident = mInjector.binderClearCallingIdentity(); 9084 try { 9085 source = mUserManager.getUserRestrictionSource(userRestriction, 9086 UserHandle.of(userId)); 9087 } finally { 9088 mInjector.binderRestoreCallingIdentity(ident); 9089 } 9090 if ((source & UserManager.RESTRICTION_SOURCE_SYSTEM) != 0) { 9091 /* 9092 * In this case, the user restriction is enforced by the system. 9093 * So we won't show an admin support intent, even if it is also 9094 * enforced by a profile/device owner. 9095 */ 9096 return null; 9097 } 9098 boolean enforcedByDo = (source & UserManager.RESTRICTION_SOURCE_DEVICE_OWNER) != 0; 9099 boolean enforcedByPo = (source & UserManager.RESTRICTION_SOURCE_PROFILE_OWNER) != 0; 9100 if (enforcedByDo && enforcedByPo) { 9101 // In this case, we'll show an admin support dialog that does not 9102 // specify the admin. 9103 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 9104 } else if (enforcedByPo) { 9105 final ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 9106 if (profileOwner != null) { 9107 return DevicePolicyManagerService.this 9108 .createShowAdminSupportIntent(profileOwner, userId); 9109 } 9110 // This could happen if another thread has changed the profile owner since we called 9111 // getUserRestrictionSource 9112 return null; 9113 } else if (enforcedByDo) { 9114 final Pair<Integer, ComponentName> deviceOwner 9115 = mOwners.getDeviceOwnerUserIdAndComponent(); 9116 if (deviceOwner != null) { 9117 return DevicePolicyManagerService.this 9118 .createShowAdminSupportIntent(deviceOwner.second, deviceOwner.first); 9119 } 9120 // This could happen if another thread has changed the device owner since we called 9121 // getUserRestrictionSource 9122 return null; 9123 } 9124 return null; 9125 } 9126 } 9127 9128 private Intent createShowAdminSupportIntent(ComponentName admin, int userId) { 9129 // This method is called with AMS lock held, so don't take DPMS lock 9130 final Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS); 9131 intent.putExtra(Intent.EXTRA_USER_ID, userId); 9132 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, admin); 9133 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 9134 return intent; 9135 } 9136 9137 @Override 9138 public Intent createAdminSupportIntent(String restriction) { 9139 Preconditions.checkNotNull(restriction); 9140 final int uid = mInjector.binderGetCallingUid(); 9141 final int userId = UserHandle.getUserId(uid); 9142 Intent intent = null; 9143 if (DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction) || 9144 DevicePolicyManager.POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction)) { 9145 synchronized(this) { 9146 final DevicePolicyData policy = getUserData(userId); 9147 final int N = policy.mAdminList.size(); 9148 for (int i = 0; i < N; i++) { 9149 final ActiveAdmin admin = policy.mAdminList.get(i); 9150 if ((admin.disableCamera && 9151 DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) || 9152 (admin.disableScreenCapture && DevicePolicyManager 9153 .POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction))) { 9154 intent = createShowAdminSupportIntent(admin.info.getComponent(), userId); 9155 break; 9156 } 9157 } 9158 // For the camera, a device owner on a different user can disable it globally, 9159 // so we need an additional check. 9160 if (intent == null 9161 && DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) { 9162 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 9163 if (admin != null && admin.disableCamera) { 9164 intent = createShowAdminSupportIntent(admin.info.getComponent(), 9165 mOwners.getDeviceOwnerUserId()); 9166 } 9167 } 9168 } 9169 } else { 9170 // if valid, |restriction| can only be a user restriction 9171 intent = mLocalService.createUserRestrictionSupportIntent(userId, restriction); 9172 } 9173 if (intent != null) { 9174 intent.putExtra(DevicePolicyManager.EXTRA_RESTRICTION, restriction); 9175 } 9176 return intent; 9177 } 9178 9179 /** 9180 * Returns true if specified admin is allowed to limit passwords and has a 9181 * {@code minimumPasswordMetrics.quality} of at least {@code minPasswordQuality} 9182 */ 9183 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 9184 if (admin.minimumPasswordMetrics.quality < minPasswordQuality) { 9185 return false; 9186 } 9187 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 9188 } 9189 9190 @Override 9191 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 9192 if (policy != null && !policy.isValid()) { 9193 throw new IllegalArgumentException("Invalid system update policy."); 9194 } 9195 synchronized (this) { 9196 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9197 if (policy == null) { 9198 mOwners.clearSystemUpdatePolicy(); 9199 } else { 9200 mOwners.setSystemUpdatePolicy(policy); 9201 } 9202 mOwners.writeDeviceOwner(); 9203 } 9204 mContext.sendBroadcastAsUser( 9205 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 9206 UserHandle.SYSTEM); 9207 } 9208 9209 @Override 9210 public SystemUpdatePolicy getSystemUpdatePolicy() { 9211 if (UserManager.isDeviceInDemoMode(mContext)) { 9212 // Pretending to have an automatic update policy when the device is in retail demo 9213 // mode. This will allow the device to download and install an ota without 9214 // any user interaction. 9215 return SystemUpdatePolicy.createAutomaticInstallPolicy(); 9216 } 9217 synchronized (this) { 9218 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 9219 if (policy != null && !policy.isValid()) { 9220 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 9221 return null; 9222 } 9223 return policy; 9224 } 9225 } 9226 9227 /** 9228 * Checks if the caller of the method is the device owner app. 9229 * 9230 * @param callerUid UID of the caller. 9231 * @return true if the caller is the device owner app 9232 */ 9233 @VisibleForTesting 9234 boolean isCallerDeviceOwner(int callerUid) { 9235 synchronized (this) { 9236 if (!mOwners.hasDeviceOwner()) { 9237 return false; 9238 } 9239 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 9240 return false; 9241 } 9242 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 9243 .getPackageName(); 9244 try { 9245 String[] pkgs = mInjector.getIPackageManager().getPackagesForUid(callerUid); 9246 for (String pkg : pkgs) { 9247 if (deviceOwnerPackageName.equals(pkg)) { 9248 return true; 9249 } 9250 } 9251 } catch (RemoteException e) { 9252 return false; 9253 } 9254 } 9255 9256 return false; 9257 } 9258 9259 @Override 9260 public void notifyPendingSystemUpdate(@Nullable SystemUpdateInfo info) { 9261 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 9262 "Only the system update service can broadcast update information"); 9263 9264 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 9265 Slog.w(LOG_TAG, "Only the system update service in the system user " + 9266 "can broadcast update information."); 9267 return; 9268 } 9269 9270 if (!mOwners.saveSystemUpdateInfo(info)) { 9271 // Pending system update hasn't changed, don't send duplicate notification. 9272 return; 9273 } 9274 9275 final Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE) 9276 .putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 9277 info == null ? -1 : info.getReceivedTime()); 9278 9279 final long ident = mInjector.binderClearCallingIdentity(); 9280 try { 9281 synchronized (this) { 9282 // Broadcast to device owner first if there is one. 9283 if (mOwners.hasDeviceOwner()) { 9284 final UserHandle deviceOwnerUser = 9285 UserHandle.of(mOwners.getDeviceOwnerUserId()); 9286 intent.setComponent(mOwners.getDeviceOwnerComponent()); 9287 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 9288 } 9289 } 9290 // Get running users. 9291 final int runningUserIds[]; 9292 try { 9293 runningUserIds = mInjector.getIActivityManager().getRunningUserIds(); 9294 } catch (RemoteException e) { 9295 // Shouldn't happen. 9296 Log.e(LOG_TAG, "Could not retrieve the list of running users", e); 9297 return; 9298 } 9299 // Send broadcasts to corresponding profile owners if any. 9300 for (final int userId : runningUserIds) { 9301 synchronized (this) { 9302 final ComponentName profileOwnerPackage = 9303 mOwners.getProfileOwnerComponent(userId); 9304 if (profileOwnerPackage != null) { 9305 intent.setComponent(profileOwnerPackage); 9306 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 9307 } 9308 } 9309 } 9310 } finally { 9311 mInjector.binderRestoreCallingIdentity(ident); 9312 } 9313 } 9314 9315 @Override 9316 public SystemUpdateInfo getPendingSystemUpdate(ComponentName admin) { 9317 Preconditions.checkNotNull(admin, "ComponentName is null"); 9318 enforceProfileOrDeviceOwner(admin); 9319 9320 return mOwners.getSystemUpdateInfo(); 9321 } 9322 9323 @Override 9324 public void setPermissionPolicy(ComponentName admin, String callerPackage, int policy) 9325 throws RemoteException { 9326 int userId = UserHandle.getCallingUserId(); 9327 synchronized (this) { 9328 // Ensure the caller is a DO/PO or a permission grant state delegate. 9329 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9330 DELEGATION_PERMISSION_GRANT); 9331 DevicePolicyData userPolicy = getUserData(userId); 9332 if (userPolicy.mPermissionPolicy != policy) { 9333 userPolicy.mPermissionPolicy = policy; 9334 saveSettingsLocked(userId); 9335 } 9336 } 9337 } 9338 9339 @Override 9340 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 9341 int userId = UserHandle.getCallingUserId(); 9342 synchronized (this) { 9343 DevicePolicyData userPolicy = getUserData(userId); 9344 return userPolicy.mPermissionPolicy; 9345 } 9346 } 9347 9348 @Override 9349 public boolean setPermissionGrantState(ComponentName admin, String callerPackage, 9350 String packageName, String permission, int grantState) throws RemoteException { 9351 UserHandle user = mInjector.binderGetCallingUserHandle(); 9352 synchronized (this) { 9353 // Ensure the caller is a DO/PO or a permission grant state delegate. 9354 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9355 DELEGATION_PERMISSION_GRANT); 9356 long ident = mInjector.binderClearCallingIdentity(); 9357 try { 9358 if (getTargetSdk(packageName, user.getIdentifier()) 9359 < android.os.Build.VERSION_CODES.M) { 9360 return false; 9361 } 9362 final PackageManager packageManager = mInjector.getPackageManager(); 9363 switch (grantState) { 9364 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 9365 mInjector.getPackageManagerInternal().grantRuntimePermission(packageName, 9366 permission, user.getIdentifier(), true /* override policy */); 9367 packageManager.updatePermissionFlags(permission, packageName, 9368 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 9369 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 9370 } break; 9371 9372 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 9373 mInjector.getPackageManagerInternal().revokeRuntimePermission(packageName, 9374 permission, user.getIdentifier(), true /* override policy */); 9375 packageManager.updatePermissionFlags(permission, packageName, 9376 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 9377 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 9378 } break; 9379 9380 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 9381 packageManager.updatePermissionFlags(permission, packageName, 9382 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 9383 } break; 9384 } 9385 return true; 9386 } catch (SecurityException se) { 9387 return false; 9388 } finally { 9389 mInjector.binderRestoreCallingIdentity(ident); 9390 } 9391 } 9392 } 9393 9394 @Override 9395 public int getPermissionGrantState(ComponentName admin, String callerPackage, 9396 String packageName, String permission) throws RemoteException { 9397 PackageManager packageManager = mInjector.getPackageManager(); 9398 9399 UserHandle user = mInjector.binderGetCallingUserHandle(); 9400 if (!isCallerWithSystemUid()) { 9401 // Ensure the caller is a DO/PO or a permission grant state delegate. 9402 enforceCanManageScope(admin, callerPackage, 9403 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, DELEGATION_PERMISSION_GRANT); 9404 } 9405 synchronized (this) { 9406 long ident = mInjector.binderClearCallingIdentity(); 9407 try { 9408 int granted = mIPackageManager.checkPermission(permission, 9409 packageName, user.getIdentifier()); 9410 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 9411 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 9412 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 9413 // Not controlled by policy 9414 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 9415 } else { 9416 // Policy controlled so return result based on permission grant state 9417 return granted == PackageManager.PERMISSION_GRANTED 9418 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 9419 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 9420 } 9421 } finally { 9422 mInjector.binderRestoreCallingIdentity(ident); 9423 } 9424 } 9425 } 9426 9427 boolean isPackageInstalledForUser(String packageName, int userHandle) { 9428 try { 9429 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 9430 userHandle); 9431 return (pi != null) && (pi.applicationInfo.flags != 0); 9432 } catch (RemoteException re) { 9433 throw new RuntimeException("Package manager has died", re); 9434 } 9435 } 9436 9437 @Override 9438 public boolean isProvisioningAllowed(String action, String packageName) { 9439 Preconditions.checkNotNull(packageName); 9440 9441 final int callingUid = mInjector.binderGetCallingUid(); 9442 final long ident = mInjector.binderClearCallingIdentity(); 9443 try { 9444 final int uidForPackage = mInjector.getPackageManager().getPackageUidAsUser( 9445 packageName, UserHandle.getUserId(callingUid)); 9446 Preconditions.checkArgument(callingUid == uidForPackage, 9447 "Caller uid doesn't match the one for the provided package."); 9448 } catch (NameNotFoundException e) { 9449 throw new IllegalArgumentException("Invalid package provided " + packageName, e); 9450 } finally { 9451 mInjector.binderRestoreCallingIdentity(ident); 9452 } 9453 9454 return checkProvisioningPreConditionSkipPermission(action, packageName) == CODE_OK; 9455 } 9456 9457 @Override 9458 public int checkProvisioningPreCondition(String action, String packageName) { 9459 Preconditions.checkNotNull(packageName); 9460 enforceCanManageProfileAndDeviceOwners(); 9461 return checkProvisioningPreConditionSkipPermission(action, packageName); 9462 } 9463 9464 private int checkProvisioningPreConditionSkipPermission(String action, String packageName) { 9465 if (!mHasFeature) { 9466 return CODE_DEVICE_ADMIN_NOT_SUPPORTED; 9467 } 9468 9469 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9470 if (action != null) { 9471 switch (action) { 9472 case DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE: 9473 return checkManagedProfileProvisioningPreCondition(packageName, callingUserId); 9474 case DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE: 9475 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 9476 case DevicePolicyManager.ACTION_PROVISION_MANAGED_USER: 9477 return checkManagedUserProvisioningPreCondition(callingUserId); 9478 case DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE: 9479 return checkManagedShareableDeviceProvisioningPreCondition(callingUserId); 9480 } 9481 } 9482 throw new IllegalArgumentException("Unknown provisioning action " + action); 9483 } 9484 9485 /** 9486 * The device owner can only be set before the setup phase of the primary user has completed, 9487 * except for adb command if no accounts or additional users are present on the device. 9488 */ 9489 private int checkDeviceOwnerProvisioningPreConditionLocked(@Nullable ComponentName owner, 9490 int deviceOwnerUserId, boolean isAdb, boolean hasIncompatibleAccountsOrNonAdb) { 9491 if (mOwners.hasDeviceOwner()) { 9492 return CODE_HAS_DEVICE_OWNER; 9493 } 9494 if (mOwners.hasProfileOwner(deviceOwnerUserId)) { 9495 return CODE_USER_HAS_PROFILE_OWNER; 9496 } 9497 if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) { 9498 return CODE_USER_NOT_RUNNING; 9499 } 9500 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 9501 return CODE_HAS_PAIRED; 9502 } 9503 if (isAdb) { 9504 // if shell command runs after user setup completed check device status. Otherwise, OK. 9505 if (mIsWatch || hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 9506 if (!mInjector.userManagerIsSplitSystemUser()) { 9507 if (mUserManager.getUserCount() > 1) { 9508 return CODE_NONSYSTEM_USER_EXISTS; 9509 } 9510 if (hasIncompatibleAccountsOrNonAdb) { 9511 return CODE_ACCOUNTS_NOT_EMPTY; 9512 } 9513 } else { 9514 // STOPSHIP Do proper check in split user mode 9515 } 9516 } 9517 return CODE_OK; 9518 } else { 9519 if (!mInjector.userManagerIsSplitSystemUser()) { 9520 // In non-split user mode, DO has to be user 0 9521 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) { 9522 return CODE_NOT_SYSTEM_USER; 9523 } 9524 // In non-split user mode, only provision DO before setup wizard completes 9525 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 9526 return CODE_USER_SETUP_COMPLETED; 9527 } 9528 } else { 9529 // STOPSHIP Do proper check in split user mode 9530 } 9531 return CODE_OK; 9532 } 9533 } 9534 9535 private int checkDeviceOwnerProvisioningPreCondition(int deviceOwnerUserId) { 9536 synchronized (this) { 9537 // hasIncompatibleAccountsOrNonAdb doesn't matter since the caller is not adb. 9538 return checkDeviceOwnerProvisioningPreConditionLocked(/* owner unknown */ null, 9539 deviceOwnerUserId, /* isAdb= */ false, 9540 /* hasIncompatibleAccountsOrNonAdb=*/ true); 9541 } 9542 } 9543 9544 private int checkManagedProfileProvisioningPreCondition(String packageName, int callingUserId) { 9545 if (!hasFeatureManagedUsers()) { 9546 return CODE_MANAGED_USERS_NOT_SUPPORTED; 9547 } 9548 if (callingUserId == UserHandle.USER_SYSTEM 9549 && mInjector.userManagerIsSplitSystemUser()) { 9550 // Managed-profiles cannot be setup on the system user. 9551 return CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 9552 } 9553 if (getProfileOwner(callingUserId) != null) { 9554 // Managed user cannot have a managed profile. 9555 return CODE_USER_HAS_PROFILE_OWNER; 9556 } 9557 9558 final long ident = mInjector.binderClearCallingIdentity(); 9559 try { 9560 final UserHandle callingUserHandle = UserHandle.of(callingUserId); 9561 final ComponentName ownerAdmin = getOwnerComponent(packageName, callingUserId); 9562 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_MANAGED_PROFILE, 9563 callingUserHandle)) { 9564 // An admin can initiate provisioning if it has set the restriction. 9565 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 9566 UserManager.DISALLOW_ADD_MANAGED_PROFILE, callingUserId)) { 9567 return CODE_ADD_MANAGED_PROFILE_DISALLOWED; 9568 } 9569 } 9570 boolean canRemoveProfile = true; 9571 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 9572 callingUserHandle)) { 9573 // We can remove a profile if the admin itself has set the restriction. 9574 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 9575 UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 9576 callingUserId)) { 9577 canRemoveProfile = false; 9578 } 9579 } 9580 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, canRemoveProfile)) { 9581 return CODE_CANNOT_ADD_MANAGED_PROFILE; 9582 } 9583 } finally { 9584 mInjector.binderRestoreCallingIdentity(ident); 9585 } 9586 return CODE_OK; 9587 } 9588 9589 private ComponentName getOwnerComponent(String packageName, int userId) { 9590 if (isDeviceOwnerPackage(packageName, userId)) { 9591 return mOwners.getDeviceOwnerComponent(); 9592 } 9593 if (isProfileOwnerPackage(packageName, userId)) { 9594 return mOwners.getProfileOwnerComponent(userId); 9595 } 9596 return null; 9597 } 9598 9599 private int checkManagedUserProvisioningPreCondition(int callingUserId) { 9600 if (!hasFeatureManagedUsers()) { 9601 return CODE_MANAGED_USERS_NOT_SUPPORTED; 9602 } 9603 if (!mInjector.userManagerIsSplitSystemUser()) { 9604 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 9605 return CODE_NOT_SYSTEM_USER_SPLIT; 9606 } 9607 if (callingUserId == UserHandle.USER_SYSTEM) { 9608 // System user cannot be a managed user. 9609 return CODE_SYSTEM_USER; 9610 } 9611 if (hasUserSetupCompleted(callingUserId)) { 9612 return CODE_USER_SETUP_COMPLETED; 9613 } 9614 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 9615 return CODE_HAS_PAIRED; 9616 } 9617 return CODE_OK; 9618 } 9619 9620 private int checkManagedShareableDeviceProvisioningPreCondition(int callingUserId) { 9621 if (!mInjector.userManagerIsSplitSystemUser()) { 9622 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 9623 return CODE_NOT_SYSTEM_USER_SPLIT; 9624 } 9625 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 9626 } 9627 9628 private boolean hasFeatureManagedUsers() { 9629 try { 9630 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 9631 } catch (RemoteException e) { 9632 return false; 9633 } 9634 } 9635 9636 @Override 9637 public String getWifiMacAddress(ComponentName admin) { 9638 // Make sure caller has DO. 9639 synchronized (this) { 9640 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9641 } 9642 9643 final long ident = mInjector.binderClearCallingIdentity(); 9644 try { 9645 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 9646 if (wifiInfo == null) { 9647 return null; 9648 } 9649 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 9650 } finally { 9651 mInjector.binderRestoreCallingIdentity(ident); 9652 } 9653 } 9654 9655 /** 9656 * Returns the target sdk version number that the given packageName was built for 9657 * in the given user. 9658 */ 9659 private int getTargetSdk(String packageName, int userId) { 9660 final ApplicationInfo ai; 9661 try { 9662 ai = mIPackageManager.getApplicationInfo(packageName, 0, userId); 9663 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 9664 return targetSdkVersion; 9665 } catch (RemoteException e) { 9666 // Shouldn't happen 9667 return 0; 9668 } 9669 } 9670 9671 @Override 9672 public boolean isManagedProfile(ComponentName admin) { 9673 enforceProfileOrDeviceOwner(admin); 9674 return isManagedProfile(mInjector.userHandleGetCallingUserId()); 9675 } 9676 9677 @Override 9678 public boolean isSystemOnlyUser(ComponentName admin) { 9679 synchronized (this) { 9680 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9681 } 9682 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9683 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 9684 } 9685 9686 @Override 9687 public void reboot(ComponentName admin) { 9688 Preconditions.checkNotNull(admin); 9689 // Make sure caller has DO. 9690 synchronized (this) { 9691 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9692 } 9693 long ident = mInjector.binderClearCallingIdentity(); 9694 try { 9695 // Make sure there are no ongoing calls on the device. 9696 if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { 9697 throw new IllegalStateException("Cannot be called with ongoing call on the device"); 9698 } 9699 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 9700 } finally { 9701 mInjector.binderRestoreCallingIdentity(ident); 9702 } 9703 } 9704 9705 @Override 9706 public void setShortSupportMessage(@NonNull ComponentName who, CharSequence message) { 9707 if (!mHasFeature) { 9708 return; 9709 } 9710 Preconditions.checkNotNull(who, "ComponentName is null"); 9711 final int userHandle = mInjector.userHandleGetCallingUserId(); 9712 synchronized (this) { 9713 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9714 mInjector.binderGetCallingUid()); 9715 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 9716 admin.shortSupportMessage = message; 9717 saveSettingsLocked(userHandle); 9718 } 9719 } 9720 } 9721 9722 @Override 9723 public CharSequence getShortSupportMessage(@NonNull ComponentName who) { 9724 if (!mHasFeature) { 9725 return null; 9726 } 9727 Preconditions.checkNotNull(who, "ComponentName is null"); 9728 synchronized (this) { 9729 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9730 mInjector.binderGetCallingUid()); 9731 return admin.shortSupportMessage; 9732 } 9733 } 9734 9735 @Override 9736 public void setLongSupportMessage(@NonNull ComponentName who, CharSequence message) { 9737 if (!mHasFeature) { 9738 return; 9739 } 9740 Preconditions.checkNotNull(who, "ComponentName is null"); 9741 final int userHandle = mInjector.userHandleGetCallingUserId(); 9742 synchronized (this) { 9743 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9744 mInjector.binderGetCallingUid()); 9745 if (!TextUtils.equals(admin.longSupportMessage, message)) { 9746 admin.longSupportMessage = message; 9747 saveSettingsLocked(userHandle); 9748 } 9749 } 9750 } 9751 9752 @Override 9753 public CharSequence getLongSupportMessage(@NonNull ComponentName who) { 9754 if (!mHasFeature) { 9755 return null; 9756 } 9757 Preconditions.checkNotNull(who, "ComponentName is null"); 9758 synchronized (this) { 9759 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9760 mInjector.binderGetCallingUid()); 9761 return admin.longSupportMessage; 9762 } 9763 } 9764 9765 @Override 9766 public CharSequence getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 9767 if (!mHasFeature) { 9768 return null; 9769 } 9770 Preconditions.checkNotNull(who, "ComponentName is null"); 9771 if (!isCallerWithSystemUid()) { 9772 throw new SecurityException("Only the system can query support message for user"); 9773 } 9774 synchronized (this) { 9775 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 9776 if (admin != null) { 9777 return admin.shortSupportMessage; 9778 } 9779 } 9780 return null; 9781 } 9782 9783 @Override 9784 public CharSequence getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 9785 if (!mHasFeature) { 9786 return null; 9787 } 9788 Preconditions.checkNotNull(who, "ComponentName is null"); 9789 if (!isCallerWithSystemUid()) { 9790 throw new SecurityException("Only the system can query support message for user"); 9791 } 9792 synchronized (this) { 9793 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 9794 if (admin != null) { 9795 return admin.longSupportMessage; 9796 } 9797 } 9798 return null; 9799 } 9800 9801 @Override 9802 public void setOrganizationColor(@NonNull ComponentName who, int color) { 9803 if (!mHasFeature) { 9804 return; 9805 } 9806 Preconditions.checkNotNull(who, "ComponentName is null"); 9807 final int userHandle = mInjector.userHandleGetCallingUserId(); 9808 enforceManagedProfile(userHandle, "set organization color"); 9809 synchronized (this) { 9810 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9811 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9812 admin.organizationColor = color; 9813 saveSettingsLocked(userHandle); 9814 } 9815 } 9816 9817 @Override 9818 public void setOrganizationColorForUser(int color, int userId) { 9819 if (!mHasFeature) { 9820 return; 9821 } 9822 enforceFullCrossUsersPermission(userId); 9823 enforceManageUsers(); 9824 enforceManagedProfile(userId, "set organization color"); 9825 synchronized (this) { 9826 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9827 admin.organizationColor = color; 9828 saveSettingsLocked(userId); 9829 } 9830 } 9831 9832 @Override 9833 public int getOrganizationColor(@NonNull ComponentName who) { 9834 if (!mHasFeature) { 9835 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 9836 } 9837 Preconditions.checkNotNull(who, "ComponentName is null"); 9838 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 9839 synchronized (this) { 9840 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9841 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9842 return admin.organizationColor; 9843 } 9844 } 9845 9846 @Override 9847 public int getOrganizationColorForUser(int userHandle) { 9848 if (!mHasFeature) { 9849 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 9850 } 9851 enforceFullCrossUsersPermission(userHandle); 9852 enforceManagedProfile(userHandle, "get organization color"); 9853 synchronized (this) { 9854 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 9855 return (profileOwner != null) 9856 ? profileOwner.organizationColor 9857 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 9858 } 9859 } 9860 9861 @Override 9862 public void setOrganizationName(@NonNull ComponentName who, CharSequence text) { 9863 if (!mHasFeature) { 9864 return; 9865 } 9866 Preconditions.checkNotNull(who, "ComponentName is null"); 9867 final int userHandle = mInjector.userHandleGetCallingUserId(); 9868 9869 synchronized (this) { 9870 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9871 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9872 if (!TextUtils.equals(admin.organizationName, text)) { 9873 admin.organizationName = (text == null || text.length() == 0) 9874 ? null : text.toString(); 9875 saveSettingsLocked(userHandle); 9876 } 9877 } 9878 } 9879 9880 @Override 9881 public CharSequence getOrganizationName(@NonNull ComponentName who) { 9882 if (!mHasFeature) { 9883 return null; 9884 } 9885 Preconditions.checkNotNull(who, "ComponentName is null"); 9886 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 9887 synchronized(this) { 9888 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9889 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9890 return admin.organizationName; 9891 } 9892 } 9893 9894 @Override 9895 public CharSequence getDeviceOwnerOrganizationName() { 9896 if (!mHasFeature) { 9897 return null; 9898 } 9899 enforceDeviceOwnerOrManageUsers(); 9900 synchronized(this) { 9901 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 9902 return deviceOwnerAdmin == null ? null : deviceOwnerAdmin.organizationName; 9903 } 9904 } 9905 9906 @Override 9907 public CharSequence getOrganizationNameForUser(int userHandle) { 9908 if (!mHasFeature) { 9909 return null; 9910 } 9911 enforceFullCrossUsersPermission(userHandle); 9912 enforceManagedProfile(userHandle, "get organization name"); 9913 synchronized (this) { 9914 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 9915 return (profileOwner != null) 9916 ? profileOwner.organizationName 9917 : null; 9918 } 9919 } 9920 9921 @Override 9922 public void setAffiliationIds(ComponentName admin, List<String> ids) { 9923 if (!mHasFeature) { 9924 return; 9925 } 9926 9927 Preconditions.checkNotNull(admin); 9928 Preconditions.checkCollectionElementsNotNull(ids, "ids"); 9929 9930 final Set<String> affiliationIds = new ArraySet<String>(ids); 9931 Preconditions.checkArgument( 9932 !affiliationIds.contains(""), "ids must not contain empty strings"); 9933 9934 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9935 synchronized (this) { 9936 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9937 getUserData(callingUserId).mAffiliationIds = affiliationIds; 9938 saveSettingsLocked(callingUserId); 9939 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 9940 // Affiliation ids specified by the device owner are additionally stored in 9941 // UserHandle.USER_SYSTEM's DevicePolicyData. 9942 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 9943 saveSettingsLocked(UserHandle.USER_SYSTEM); 9944 } 9945 9946 // Affiliation status for any user, not just the calling user, might have changed. 9947 // The device owner user will still be affiliated after changing its affiliation ids, 9948 // but as a result of that other users might become affiliated or un-affiliated. 9949 maybePauseDeviceWideLoggingLocked(); 9950 maybeResumeDeviceWideLoggingLocked(); 9951 maybeClearLockTaskPackagesLocked(); 9952 } 9953 } 9954 9955 @Override 9956 public List<String> getAffiliationIds(ComponentName admin) { 9957 if (!mHasFeature) { 9958 return Collections.emptyList(); 9959 } 9960 9961 Preconditions.checkNotNull(admin); 9962 synchronized (this) { 9963 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9964 return new ArrayList<String>( 9965 getUserData(mInjector.userHandleGetCallingUserId()).mAffiliationIds); 9966 } 9967 } 9968 9969 @Override 9970 public boolean isAffiliatedUser() { 9971 if (!mHasFeature) { 9972 return false; 9973 } 9974 9975 synchronized (this) { 9976 return isUserAffiliatedWithDeviceLocked(mInjector.userHandleGetCallingUserId()); 9977 } 9978 } 9979 9980 private boolean isUserAffiliatedWithDeviceLocked(int userId) { 9981 if (!mOwners.hasDeviceOwner()) { 9982 return false; 9983 } 9984 if (userId == mOwners.getDeviceOwnerUserId()) { 9985 // The user that the DO is installed on is always affiliated with the device. 9986 return true; 9987 } 9988 if (userId == UserHandle.USER_SYSTEM) { 9989 // The system user is always affiliated in a DO device, even if the DO is set on a 9990 // different user. This could be the case if the DO is set in the primary user 9991 // of a split user device. 9992 return true; 9993 } 9994 final ComponentName profileOwner = getProfileOwner(userId); 9995 if (profileOwner == null) { 9996 return false; 9997 } 9998 final Set<String> userAffiliationIds = getUserData(userId).mAffiliationIds; 9999 final Set<String> deviceAffiliationIds = 10000 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 10001 for (String id : userAffiliationIds) { 10002 if (deviceAffiliationIds.contains(id)) { 10003 return true; 10004 } 10005 } 10006 return false; 10007 } 10008 10009 private boolean areAllUsersAffiliatedWithDeviceLocked() { 10010 final long ident = mInjector.binderClearCallingIdentity(); 10011 try { 10012 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 10013 for (int i = 0; i < userInfos.size(); i++) { 10014 int userId = userInfos.get(i).id; 10015 if (!isUserAffiliatedWithDeviceLocked(userId)) { 10016 Slog.d(LOG_TAG, "User id " + userId + " not affiliated."); 10017 return false; 10018 } 10019 } 10020 } finally { 10021 mInjector.binderRestoreCallingIdentity(ident); 10022 } 10023 10024 return true; 10025 } 10026 10027 @Override 10028 public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) { 10029 if (!mHasFeature) { 10030 return; 10031 } 10032 Preconditions.checkNotNull(admin); 10033 10034 synchronized (this) { 10035 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10036 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 10037 return; 10038 } 10039 mInjector.securityLogSetLoggingEnabledProperty(enabled); 10040 if (enabled) { 10041 mSecurityLogMonitor.start(); 10042 maybePauseDeviceWideLoggingLocked(); 10043 } else { 10044 mSecurityLogMonitor.stop(); 10045 } 10046 } 10047 } 10048 10049 @Override 10050 public boolean isSecurityLoggingEnabled(ComponentName admin) { 10051 if (!mHasFeature) { 10052 return false; 10053 } 10054 10055 Preconditions.checkNotNull(admin); 10056 synchronized (this) { 10057 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10058 return mInjector.securityLogGetLoggingEnabledProperty(); 10059 } 10060 } 10061 10062 private synchronized void recordSecurityLogRetrievalTime() { 10063 final long currentTime = System.currentTimeMillis(); 10064 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 10065 if (currentTime > policyData.mLastSecurityLogRetrievalTime) { 10066 policyData.mLastSecurityLogRetrievalTime = currentTime; 10067 saveSettingsLocked(UserHandle.USER_SYSTEM); 10068 } 10069 } 10070 10071 @Override 10072 public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) { 10073 if (!mHasFeature) { 10074 return null; 10075 } 10076 10077 Preconditions.checkNotNull(admin); 10078 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10079 10080 if (!mContext.getResources().getBoolean(R.bool.config_supportPreRebootSecurityLogs) 10081 || !mInjector.securityLogGetLoggingEnabledProperty()) { 10082 return null; 10083 } 10084 10085 recordSecurityLogRetrievalTime(); 10086 10087 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 10088 try { 10089 SecurityLog.readPreviousEvents(output); 10090 return new ParceledListSlice<SecurityEvent>(output); 10091 } catch (IOException e) { 10092 Slog.w(LOG_TAG, "Fail to read previous events" , e); 10093 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 10094 } 10095 } 10096 10097 @Override 10098 public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) { 10099 if (!mHasFeature) { 10100 return null; 10101 } 10102 10103 Preconditions.checkNotNull(admin); 10104 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10105 10106 if (!mInjector.securityLogGetLoggingEnabledProperty()) { 10107 return null; 10108 } 10109 10110 recordSecurityLogRetrievalTime(); 10111 10112 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 10113 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 10114 } 10115 10116 private void enforceCanManageDeviceAdmin() { 10117 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 10118 null); 10119 } 10120 10121 private void enforceCanManageProfileAndDeviceOwners() { 10122 mContext.enforceCallingOrSelfPermission( 10123 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 10124 } 10125 10126 private void enforceCallerSystemUserHandle() { 10127 final int callingUid = mInjector.binderGetCallingUid(); 10128 final int userId = UserHandle.getUserId(callingUid); 10129 if (userId != UserHandle.USER_SYSTEM) { 10130 throw new SecurityException("Caller has to be in user 0"); 10131 } 10132 } 10133 10134 @Override 10135 public boolean isUninstallInQueue(final String packageName) { 10136 enforceCanManageDeviceAdmin(); 10137 final int userId = mInjector.userHandleGetCallingUserId(); 10138 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10139 synchronized (this) { 10140 return mPackagesToRemove.contains(packageUserPair); 10141 } 10142 } 10143 10144 @Override 10145 public void uninstallPackageWithActiveAdmins(final String packageName) { 10146 enforceCanManageDeviceAdmin(); 10147 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 10148 10149 final int userId = mInjector.userHandleGetCallingUserId(); 10150 10151 enforceUserUnlocked(userId); 10152 10153 final ComponentName profileOwner = getProfileOwner(userId); 10154 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 10155 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 10156 } 10157 10158 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 10159 if (getDeviceOwnerUserId() == userId && deviceOwner != null 10160 && packageName.equals(deviceOwner.getPackageName())) { 10161 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 10162 } 10163 10164 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10165 synchronized (this) { 10166 mPackagesToRemove.add(packageUserPair); 10167 } 10168 10169 // All active admins on the user. 10170 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 10171 10172 // Active admins in the target package. 10173 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 10174 if (allActiveAdmins != null) { 10175 for (ComponentName activeAdmin : allActiveAdmins) { 10176 if (packageName.equals(activeAdmin.getPackageName())) { 10177 packageActiveAdmins.add(activeAdmin); 10178 removeActiveAdmin(activeAdmin, userId); 10179 } 10180 } 10181 } 10182 if (packageActiveAdmins.size() == 0) { 10183 startUninstallIntent(packageName, userId); 10184 } else { 10185 mHandler.postDelayed(new Runnable() { 10186 @Override 10187 public void run() { 10188 for (ComponentName activeAdmin : packageActiveAdmins) { 10189 removeAdminArtifacts(activeAdmin, userId); 10190 } 10191 startUninstallIntent(packageName, userId); 10192 } 10193 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 10194 } 10195 } 10196 10197 @Override 10198 public boolean isDeviceProvisioned() { 10199 synchronized (this) { 10200 return getUserDataUnchecked(UserHandle.USER_SYSTEM).mUserSetupComplete; 10201 } 10202 } 10203 10204 private void removePackageIfRequired(final String packageName, final int userId) { 10205 if (!packageHasActiveAdmins(packageName, userId)) { 10206 // Will not do anything if uninstall was not requested or was already started. 10207 startUninstallIntent(packageName, userId); 10208 } 10209 } 10210 10211 private void startUninstallIntent(final String packageName, final int userId) { 10212 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10213 synchronized (this) { 10214 if (!mPackagesToRemove.contains(packageUserPair)) { 10215 // Do nothing if uninstall was not requested or was already started. 10216 return; 10217 } 10218 mPackagesToRemove.remove(packageUserPair); 10219 } 10220 try { 10221 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 10222 // Package does not exist. Nothing to do. 10223 return; 10224 } 10225 } catch (RemoteException re) { 10226 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 10227 } 10228 10229 try { // force stop the package before uninstalling 10230 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 10231 } catch (RemoteException re) { 10232 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 10233 } 10234 final Uri packageURI = Uri.parse("package:" + packageName); 10235 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 10236 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 10237 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 10238 } 10239 10240 /** 10241 * Removes the admin from the policy. Ideally called after the admin's 10242 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 10243 * 10244 * @param adminReceiver The admin to remove 10245 * @param userHandle The user for which this admin has to be removed. 10246 */ 10247 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 10248 synchronized (this) { 10249 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 10250 if (admin == null) { 10251 return; 10252 } 10253 final DevicePolicyData policy = getUserData(userHandle); 10254 final boolean doProxyCleanup = admin.info.usesPolicy( 10255 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 10256 policy.mAdminList.remove(admin); 10257 policy.mAdminMap.remove(adminReceiver); 10258 validatePasswordOwnerLocked(policy); 10259 if (doProxyCleanup) { 10260 resetGlobalProxyLocked(policy); 10261 } 10262 saveSettingsLocked(userHandle); 10263 updateMaximumTimeToLockLocked(userHandle); 10264 policy.mRemovingAdmins.remove(adminReceiver); 10265 10266 Slog.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle); 10267 } 10268 // The removed admin might have disabled camera, so update user 10269 // restrictions. 10270 pushUserRestrictions(userHandle); 10271 } 10272 10273 @Override 10274 public void setDeviceProvisioningConfigApplied() { 10275 enforceManageUsers(); 10276 synchronized (this) { 10277 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 10278 policy.mDeviceProvisioningConfigApplied = true; 10279 saveSettingsLocked(UserHandle.USER_SYSTEM); 10280 } 10281 } 10282 10283 @Override 10284 public boolean isDeviceProvisioningConfigApplied() { 10285 enforceManageUsers(); 10286 synchronized (this) { 10287 final DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 10288 return policy.mDeviceProvisioningConfigApplied; 10289 } 10290 } 10291 10292 /** 10293 * Force update internal persistent state from Settings.Secure.USER_SETUP_COMPLETE. 10294 * 10295 * It's added for testing only. Please use this API carefully if it's used by other system app 10296 * and bare in mind Settings.Secure.USER_SETUP_COMPLETE can be modified by user and other system 10297 * apps. 10298 */ 10299 @Override 10300 public void forceUpdateUserSetupComplete() { 10301 enforceCanManageProfileAndDeviceOwners(); 10302 enforceCallerSystemUserHandle(); 10303 // no effect if it's called from user build 10304 if (!mInjector.isBuildDebuggable()) { 10305 return; 10306 } 10307 final int userId = UserHandle.USER_SYSTEM; 10308 boolean isUserCompleted = mInjector.settingsSecureGetIntForUser( 10309 Settings.Secure.USER_SETUP_COMPLETE, 0, userId) != 0; 10310 DevicePolicyData policy = getUserData(userId); 10311 policy.mUserSetupComplete = isUserCompleted; 10312 synchronized (this) { 10313 saveSettingsLocked(userId); 10314 } 10315 } 10316 10317 // TODO(b/22388012): When backup is available for secondary users and profiles, consider 10318 // whether there are any privacy/security implications of enabling the backup service here 10319 // if there are other users or profiles unmanaged or managed by a different entity (i.e. not 10320 // affiliated). 10321 @Override 10322 public void setBackupServiceEnabled(ComponentName admin, boolean enabled) { 10323 if (!mHasFeature) { 10324 return; 10325 } 10326 Preconditions.checkNotNull(admin); 10327 synchronized (this) { 10328 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10329 } 10330 10331 final long ident = mInjector.binderClearCallingIdentity(); 10332 try { 10333 IBackupManager ibm = mInjector.getIBackupManager(); 10334 if (ibm != null) { 10335 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, enabled); 10336 } 10337 } catch (RemoteException e) { 10338 throw new IllegalStateException( 10339 "Failed " + (enabled ? "" : "de") + "activating backup service.", e); 10340 } finally { 10341 mInjector.binderRestoreCallingIdentity(ident); 10342 } 10343 } 10344 10345 @Override 10346 public boolean isBackupServiceEnabled(ComponentName admin) { 10347 Preconditions.checkNotNull(admin); 10348 if (!mHasFeature) { 10349 return true; 10350 } 10351 synchronized (this) { 10352 try { 10353 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10354 IBackupManager ibm = mInjector.getIBackupManager(); 10355 return ibm != null && ibm.isBackupServiceActive(UserHandle.USER_SYSTEM); 10356 } catch (RemoteException e) { 10357 throw new IllegalStateException("Failed requesting backup service state.", e); 10358 } 10359 } 10360 } 10361 10362 @Override 10363 public boolean bindDeviceAdminServiceAsUser( 10364 @NonNull ComponentName admin, @NonNull IApplicationThread caller, 10365 @Nullable IBinder activtiyToken, @NonNull Intent serviceIntent, 10366 @NonNull IServiceConnection connection, int flags, @UserIdInt int targetUserId) { 10367 if (!mHasFeature) { 10368 return false; 10369 } 10370 Preconditions.checkNotNull(admin); 10371 Preconditions.checkNotNull(caller); 10372 Preconditions.checkNotNull(serviceIntent); 10373 Preconditions.checkArgument( 10374 serviceIntent.getComponent() != null || serviceIntent.getPackage() != null, 10375 "Service intent must be explicit (with a package name or component): " 10376 + serviceIntent); 10377 Preconditions.checkNotNull(connection); 10378 Preconditions.checkArgument(mInjector.userHandleGetCallingUserId() != targetUserId, 10379 "target user id must be different from the calling user id"); 10380 10381 if (!getBindDeviceAdminTargetUsers(admin).contains(UserHandle.of(targetUserId))) { 10382 throw new SecurityException("Not allowed to bind to target user id"); 10383 } 10384 10385 final String targetPackage; 10386 synchronized (this) { 10387 targetPackage = getOwnerPackageNameForUserLocked(targetUserId); 10388 } 10389 10390 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10391 try { 10392 // Validate and sanitize the incoming service intent. 10393 final Intent sanitizedIntent = 10394 createCrossUserServiceIntent(serviceIntent, targetPackage, targetUserId); 10395 if (sanitizedIntent == null) { 10396 // Fail, cannot lookup the target service. 10397 return false; 10398 } 10399 // Ask ActivityManager to bind it. Notice that we are binding the service with the 10400 // caller app instead of DevicePolicyManagerService. 10401 return mInjector.getIActivityManager().bindService( 10402 caller, activtiyToken, serviceIntent, 10403 serviceIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 10404 connection, flags, mContext.getOpPackageName(), 10405 targetUserId) != 0; 10406 } catch (RemoteException ex) { 10407 // Same process, should not happen. 10408 } finally { 10409 mInjector.binderRestoreCallingIdentity(callingIdentity); 10410 } 10411 10412 // Failed to bind. 10413 return false; 10414 } 10415 10416 @Override 10417 public @NonNull List<UserHandle> getBindDeviceAdminTargetUsers(@NonNull ComponentName admin) { 10418 if (!mHasFeature) { 10419 return Collections.emptyList(); 10420 } 10421 Preconditions.checkNotNull(admin); 10422 10423 synchronized (this) { 10424 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10425 10426 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10427 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10428 try { 10429 ArrayList<UserHandle> targetUsers = new ArrayList<>(); 10430 if (!isDeviceOwner(admin, callingUserId)) { 10431 // Profile owners can only bind to the device owner. 10432 if (canUserBindToDeviceOwnerLocked(callingUserId)) { 10433 targetUsers.add(UserHandle.of(mOwners.getDeviceOwnerUserId())); 10434 } 10435 } else { 10436 // Caller is the device owner: Look for profile owners that it can bind to. 10437 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 10438 for (int i = 0; i < userInfos.size(); i++) { 10439 final int userId = userInfos.get(i).id; 10440 if (userId != callingUserId && canUserBindToDeviceOwnerLocked(userId)) { 10441 targetUsers.add(UserHandle.of(userId)); 10442 } 10443 } 10444 } 10445 10446 return targetUsers; 10447 } finally { 10448 mInjector.binderRestoreCallingIdentity(callingIdentity); 10449 } 10450 } 10451 } 10452 10453 private boolean canUserBindToDeviceOwnerLocked(int userId) { 10454 // There has to be a device owner, under another user id. 10455 if (!mOwners.hasDeviceOwner() || userId == mOwners.getDeviceOwnerUserId()) { 10456 return false; 10457 } 10458 10459 // The user must have a profile owner that belongs to the same package as the device owner. 10460 if (!mOwners.hasProfileOwner(userId) || !TextUtils.equals( 10461 mOwners.getDeviceOwnerPackageName(), mOwners.getProfileOwnerPackage(userId))) { 10462 return false; 10463 } 10464 10465 // The user must be affiliated. 10466 return isUserAffiliatedWithDeviceLocked(userId); 10467 } 10468 10469 /** 10470 * Return true if a given user has any accounts that'll prevent installing a device or profile 10471 * owner {@code owner}. 10472 * - If the user has no accounts, then return false. 10473 * - Otherwise, if the owner is unknown (== null), or is not test-only, then return true. 10474 * - Otherwise, if there's any account that does not have ..._ALLOWED, or does have 10475 * ..._DISALLOWED, return true. 10476 * - Otherwise return false. 10477 * 10478 * If the caller is *not* ADB, it also returns true. The returned value shouldn't be used 10479 * when the caller is not ADB. 10480 * 10481 * DO NOT CALL IT WITH THE DPMS LOCK HELD. 10482 */ 10483 private boolean hasIncompatibleAccountsOrNonAdbNoLock( 10484 int userId, @Nullable ComponentName owner) { 10485 if (!isAdb()) { 10486 return true; 10487 } 10488 wtfIfInLock(); 10489 10490 final long token = mInjector.binderClearCallingIdentity(); 10491 try { 10492 final AccountManager am = AccountManager.get(mContext); 10493 final Account accounts[] = am.getAccountsAsUser(userId); 10494 if (accounts.length == 0) { 10495 return false; 10496 } 10497 synchronized (this) { 10498 if (owner == null || !isAdminTestOnlyLocked(owner, userId)) { 10499 Log.w(LOG_TAG, 10500 "Non test-only owner can't be installed with existing accounts."); 10501 return true; 10502 } 10503 } 10504 10505 final String[] feature_allow = 10506 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_ALLOWED }; 10507 final String[] feature_disallow = 10508 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_DISALLOWED }; 10509 10510 boolean compatible = true; 10511 for (Account account : accounts) { 10512 if (hasAccountFeatures(am, account, feature_disallow)) { 10513 Log.e(LOG_TAG, account + " has " + feature_disallow[0]); 10514 compatible = false; 10515 break; 10516 } 10517 if (!hasAccountFeatures(am, account, feature_allow)) { 10518 Log.e(LOG_TAG, account + " doesn't have " + feature_allow[0]); 10519 compatible = false; 10520 break; 10521 } 10522 } 10523 if (compatible) { 10524 Log.w(LOG_TAG, "All accounts are compatible"); 10525 } else { 10526 Log.e(LOG_TAG, "Found incompatible accounts"); 10527 } 10528 return !compatible; 10529 } finally { 10530 mInjector.binderRestoreCallingIdentity(token); 10531 } 10532 } 10533 10534 private boolean hasAccountFeatures(AccountManager am, Account account, String[] features) { 10535 try { 10536 return am.hasFeatures(account, features, null, null).getResult(); 10537 } catch (Exception e) { 10538 Log.w(LOG_TAG, "Failed to get account feature", e); 10539 return false; 10540 } 10541 } 10542 10543 private boolean isAdb() { 10544 final int callingUid = mInjector.binderGetCallingUid(); 10545 return callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID; 10546 } 10547 10548 @Override 10549 public synchronized void setNetworkLoggingEnabled(ComponentName admin, boolean enabled) { 10550 if (!mHasFeature) { 10551 return; 10552 } 10553 Preconditions.checkNotNull(admin); 10554 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10555 10556 if (enabled == isNetworkLoggingEnabledInternalLocked()) { 10557 // already in the requested state 10558 return; 10559 } 10560 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10561 deviceOwner.isNetworkLoggingEnabled = enabled; 10562 if (!enabled) { 10563 deviceOwner.numNetworkLoggingNotifications = 0; 10564 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 10565 } 10566 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 10567 10568 setNetworkLoggingActiveInternal(enabled); 10569 } 10570 10571 private synchronized void setNetworkLoggingActiveInternal(boolean active) { 10572 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10573 try { 10574 if (active) { 10575 mNetworkLogger = new NetworkLogger(this, mInjector.getPackageManagerInternal()); 10576 if (!mNetworkLogger.startNetworkLogging()) { 10577 mNetworkLogger = null; 10578 Slog.wtf(LOG_TAG, "Network logging could not be started due to the logging" 10579 + " service not being available yet."); 10580 } 10581 maybePauseDeviceWideLoggingLocked(); 10582 sendNetworkLoggingNotificationLocked(); 10583 } else { 10584 if (mNetworkLogger != null && !mNetworkLogger.stopNetworkLogging()) { 10585 Slog.wtf(LOG_TAG, "Network logging could not be stopped due to the logging" 10586 + " service not being available yet."); 10587 } 10588 mNetworkLogger = null; 10589 mInjector.getNotificationManager().cancel(NETWORK_LOGGING_NOTIFICATION_ID); 10590 } 10591 } finally { 10592 mInjector.binderRestoreCallingIdentity(callingIdentity); 10593 } 10594 } 10595 10596 /** Pauses security and network logging if there are unaffiliated users on the device */ 10597 private void maybePauseDeviceWideLoggingLocked() { 10598 if (!areAllUsersAffiliatedWithDeviceLocked()) { 10599 Slog.i(LOG_TAG, "There are unaffiliated users, security and network logging will be " 10600 + "paused if enabled."); 10601 mSecurityLogMonitor.pause(); 10602 if (mNetworkLogger != null) { 10603 mNetworkLogger.pause(); 10604 } 10605 } 10606 } 10607 10608 /** Resumes security and network logging (if they are enabled) if all users are affiliated */ 10609 private void maybeResumeDeviceWideLoggingLocked() { 10610 if (areAllUsersAffiliatedWithDeviceLocked()) { 10611 final long ident = mInjector.binderClearCallingIdentity(); 10612 try { 10613 mSecurityLogMonitor.resume(); 10614 if (mNetworkLogger != null) { 10615 mNetworkLogger.resume(); 10616 } 10617 } finally { 10618 mInjector.binderRestoreCallingIdentity(ident); 10619 } 10620 } 10621 } 10622 10623 /** Deletes any security and network logs that might have been collected so far */ 10624 private void discardDeviceWideLogsLocked() { 10625 mSecurityLogMonitor.discardLogs(); 10626 if (mNetworkLogger != null) { 10627 mNetworkLogger.discardLogs(); 10628 } 10629 // TODO: We should discard pre-boot security logs here too, as otherwise those 10630 // logs (which might contain data from the user just removed) will be 10631 // available after next boot. 10632 } 10633 10634 @Override 10635 public boolean isNetworkLoggingEnabled(ComponentName admin) { 10636 if (!mHasFeature) { 10637 return false; 10638 } 10639 synchronized (this) { 10640 enforceDeviceOwnerOrManageUsers(); 10641 return isNetworkLoggingEnabledInternalLocked(); 10642 } 10643 } 10644 10645 private boolean isNetworkLoggingEnabledInternalLocked() { 10646 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10647 return (deviceOwner != null) && deviceOwner.isNetworkLoggingEnabled; 10648 } 10649 10650 /* 10651 * A maximum of 1200 events are returned, and the total marshalled size is in the order of 10652 * 100kB, so returning a List instead of ParceledListSlice is acceptable. 10653 * Ideally this would be done with ParceledList, however it only supports homogeneous types. 10654 * 10655 * @see NetworkLoggingHandler#MAX_EVENTS_PER_BATCH 10656 */ 10657 @Override 10658 public List<NetworkEvent> retrieveNetworkLogs(ComponentName admin, long batchToken) { 10659 if (!mHasFeature) { 10660 return null; 10661 } 10662 Preconditions.checkNotNull(admin); 10663 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10664 10665 synchronized (this) { 10666 if (mNetworkLogger == null 10667 || !isNetworkLoggingEnabledInternalLocked()) { 10668 return null; 10669 } 10670 10671 final long currentTime = System.currentTimeMillis(); 10672 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 10673 if (currentTime > policyData.mLastNetworkLogsRetrievalTime) { 10674 policyData.mLastNetworkLogsRetrievalTime = currentTime; 10675 saveSettingsLocked(UserHandle.USER_SYSTEM); 10676 } 10677 return mNetworkLogger.retrieveLogs(batchToken); 10678 } 10679 } 10680 10681 private void sendNetworkLoggingNotificationLocked() { 10682 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10683 if (deviceOwner == null || !deviceOwner.isNetworkLoggingEnabled) { 10684 return; 10685 } 10686 if (deviceOwner.numNetworkLoggingNotifications >= 10687 ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 10688 return; 10689 } 10690 final long now = System.currentTimeMillis(); 10691 if (now - deviceOwner.lastNetworkLoggingNotificationTimeMs < MS_PER_DAY) { 10692 return; 10693 } 10694 deviceOwner.numNetworkLoggingNotifications++; 10695 if (deviceOwner.numNetworkLoggingNotifications 10696 >= ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 10697 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 10698 } else { 10699 deviceOwner.lastNetworkLoggingNotificationTimeMs = now; 10700 } 10701 final Intent intent = new Intent(DevicePolicyManager.ACTION_SHOW_DEVICE_MONITORING_DIALOG); 10702 intent.setPackage("com.android.systemui"); 10703 final PendingIntent pendingIntent = PendingIntent.getBroadcastAsUser(mContext, 0, intent, 0, 10704 UserHandle.CURRENT); 10705 Notification notification = new Notification.Builder(mContext) 10706 .setSmallIcon(R.drawable.ic_qs_network_logging) 10707 .setContentTitle(mContext.getString(R.string.network_logging_notification_title)) 10708 .setContentText(mContext.getString(R.string.network_logging_notification_text)) 10709 .setTicker(mContext.getString(R.string.network_logging_notification_title)) 10710 .setShowWhen(true) 10711 .setContentIntent(pendingIntent) 10712 .build(); 10713 mInjector.getNotificationManager().notify(NETWORK_LOGGING_NOTIFICATION_ID, notification); 10714 saveSettingsLocked(mOwners.getDeviceOwnerUserId()); 10715 } 10716 10717 /** 10718 * Return the package name of owner in a given user. 10719 */ 10720 private String getOwnerPackageNameForUserLocked(int userId) { 10721 return mOwners.getDeviceOwnerUserId() == userId 10722 ? mOwners.getDeviceOwnerPackageName() 10723 : mOwners.getProfileOwnerPackage(userId); 10724 } 10725 10726 /** 10727 * @param rawIntent Original service intent specified by caller. It must be explicit. 10728 * @param expectedPackageName The expected package name of the resolved service. 10729 * @return Intent that have component explicitly set. {@code null} if no service is resolved 10730 * with the given intent. 10731 * @throws SecurityException if the intent is resolved to an invalid service. 10732 */ 10733 private Intent createCrossUserServiceIntent( 10734 @NonNull Intent rawIntent, @NonNull String expectedPackageName, 10735 @UserIdInt int targetUserId) throws RemoteException, SecurityException { 10736 ResolveInfo info = mIPackageManager.resolveService( 10737 rawIntent, 10738 rawIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 10739 0, // flags 10740 targetUserId); 10741 if (info == null || info.serviceInfo == null) { 10742 Log.e(LOG_TAG, "Fail to look up the service: " + rawIntent 10743 + " or user " + targetUserId + " is not running"); 10744 return null; 10745 } 10746 if (!expectedPackageName.equals(info.serviceInfo.packageName)) { 10747 throw new SecurityException("Only allow to bind service in " + expectedPackageName); 10748 } 10749 if (info.serviceInfo.exported) { 10750 throw new SecurityException("The service must be unexported"); 10751 } 10752 // It is the system server to bind the service, it would be extremely dangerous if it 10753 // can be exploited to bind any service. Set the component explicitly to make sure we 10754 // do not bind anything accidentally. 10755 rawIntent.setComponent(info.serviceInfo.getComponentName()); 10756 return rawIntent; 10757 } 10758 10759 @Override 10760 public long getLastSecurityLogRetrievalTime() { 10761 enforceDeviceOwnerOrManageUsers(); 10762 return getUserData(UserHandle.USER_SYSTEM).mLastSecurityLogRetrievalTime; 10763 } 10764 10765 @Override 10766 public long getLastBugReportRequestTime() { 10767 enforceDeviceOwnerOrManageUsers(); 10768 return getUserData(UserHandle.USER_SYSTEM).mLastBugReportRequestTime; 10769 } 10770 10771 @Override 10772 public long getLastNetworkLogRetrievalTime() { 10773 enforceDeviceOwnerOrManageUsers(); 10774 return getUserData(UserHandle.USER_SYSTEM).mLastNetworkLogsRetrievalTime; 10775 } 10776 10777 @Override 10778 public boolean setResetPasswordToken(ComponentName admin, byte[] token) { 10779 if (!mHasFeature) { 10780 return false; 10781 } 10782 if (token == null || token.length < 32) { 10783 throw new IllegalArgumentException("token must be at least 32-byte long"); 10784 } 10785 synchronized (this) { 10786 final int userHandle = mInjector.userHandleGetCallingUserId(); 10787 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10788 10789 DevicePolicyData policy = getUserData(userHandle); 10790 long ident = mInjector.binderClearCallingIdentity(); 10791 try { 10792 if (policy.mPasswordTokenHandle != 0) { 10793 mLockPatternUtils.removeEscrowToken(policy.mPasswordTokenHandle, userHandle); 10794 } 10795 10796 policy.mPasswordTokenHandle = mLockPatternUtils.addEscrowToken(token, userHandle); 10797 saveSettingsLocked(userHandle); 10798 return policy.mPasswordTokenHandle != 0; 10799 } finally { 10800 mInjector.binderRestoreCallingIdentity(ident); 10801 } 10802 } 10803 } 10804 10805 @Override 10806 public boolean clearResetPasswordToken(ComponentName admin) { 10807 if (!mHasFeature) { 10808 return false; 10809 } 10810 synchronized (this) { 10811 final int userHandle = mInjector.userHandleGetCallingUserId(); 10812 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10813 10814 DevicePolicyData policy = getUserData(userHandle); 10815 if (policy.mPasswordTokenHandle != 0) { 10816 long ident = mInjector.binderClearCallingIdentity(); 10817 try { 10818 boolean result = mLockPatternUtils.removeEscrowToken( 10819 policy.mPasswordTokenHandle, userHandle); 10820 policy.mPasswordTokenHandle = 0; 10821 saveSettingsLocked(userHandle); 10822 return result; 10823 } finally { 10824 mInjector.binderRestoreCallingIdentity(ident); 10825 } 10826 } 10827 } 10828 return false; 10829 } 10830 10831 @Override 10832 public boolean isResetPasswordTokenActive(ComponentName admin) { 10833 synchronized (this) { 10834 final int userHandle = mInjector.userHandleGetCallingUserId(); 10835 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10836 10837 DevicePolicyData policy = getUserData(userHandle); 10838 if (policy.mPasswordTokenHandle != 0) { 10839 long ident = mInjector.binderClearCallingIdentity(); 10840 try { 10841 return mLockPatternUtils.isEscrowTokenActive(policy.mPasswordTokenHandle, 10842 userHandle); 10843 } finally { 10844 mInjector.binderRestoreCallingIdentity(ident); 10845 } 10846 } 10847 } 10848 return false; 10849 } 10850 10851 @Override 10852 public boolean resetPasswordWithToken(ComponentName admin, String passwordOrNull, byte[] token, 10853 int flags) { 10854 Preconditions.checkNotNull(token); 10855 synchronized (this) { 10856 final int userHandle = mInjector.userHandleGetCallingUserId(); 10857 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10858 10859 DevicePolicyData policy = getUserData(userHandle); 10860 if (policy.mPasswordTokenHandle != 0) { 10861 final String password = passwordOrNull != null ? passwordOrNull : ""; 10862 return resetPasswordInternal(password, policy.mPasswordTokenHandle, token, 10863 flags, mInjector.binderGetCallingUid(), userHandle); 10864 } else { 10865 Slog.w(LOG_TAG, "No saved token handle"); 10866 } 10867 } 10868 return false; 10869 } 10870 10871 @Override 10872 public boolean isDefaultInputMethodSetByOwner(@NonNull UserHandle user) { 10873 final int userId = user.getIdentifier(); 10874 enforceProfileOwnerOrSystemUser(null); 10875 if (!isCallerWithSystemUid() && mInjector.userHandleGetCallingUserId() != userId) { 10876 throw new SecurityException( 10877 "Only the system can use this method to query information about another user"); 10878 } 10879 return getUserData(userId).mDefaultInputMethodSet; 10880 } 10881} 10882