DevicePolicyManagerService.java revision 5663e051099cdf442bc3316a88e1a7600c58aaaa
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.util.ArrayList; 198import java.util.Arrays; 199import java.util.Collection; 200import java.util.Collections; 201import java.util.Date; 202import java.util.List; 203import java.util.Map.Entry; 204import java.util.Set; 205import java.util.concurrent.TimeUnit; 206import java.util.concurrent.atomic.AtomicBoolean; 207 208/** 209 * Implementation of the device policy APIs. 210 */ 211public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 212 213 protected static final String LOG_TAG = "DevicePolicyManager"; 214 215 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 216 217 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 218 219 private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate"; 220 221 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 222 223 private static final String TAG_STATUS_BAR = "statusbar"; 224 225 private static final String ATTR_DISABLED = "disabled"; 226 227 private static final String ATTR_NAME = "name"; 228 229 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 230 "do-not-ask-credentials-on-boot"; 231 232 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 233 234 private static final String TAG_LAST_SECURITY_LOG_RETRIEVAL = "last-security-log-retrieval"; 235 236 private static final String TAG_LAST_BUG_REPORT_REQUEST = "last-bug-report-request"; 237 238 private static final String TAG_LAST_NETWORK_LOG_RETRIEVAL = "last-network-log-retrieval"; 239 240 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 241 242 private static final String TAG_DEFAULT_INPUT_METHOD_SET = "default-ime-set"; 243 244 private static final String ATTR_ID = "id"; 245 246 private static final String ATTR_VALUE = "value"; 247 248 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 249 250 private static final String TAG_PASSWORD_TOKEN_HANDLE = "password-token"; 251 252 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 253 254 private static final long MS_PER_DAY = TimeUnit.DAYS.toMillis(1); 255 256 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 257 258 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 259 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 260 261 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 262 private static final int NETWORK_LOGGING_NOTIFICATION_ID = 1002; 263 264 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 265 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 266 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 267 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 268 private static final String ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED = 269 "device-provisioning-config-applied"; 270 private static final String ATTR_DEVICE_PAIRED = "device-paired"; 271 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 272 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 273 = "application-restrictions-manager"; 274 275 // Comprehensive list of delegations. 276 private static final String DELEGATIONS[] = { 277 DELEGATION_CERT_INSTALL, 278 DELEGATION_APP_RESTRICTIONS, 279 DELEGATION_BLOCK_UNINSTALL, 280 DELEGATION_ENABLE_SYSTEM_APP, 281 DELEGATION_KEEP_UNINSTALLED_PACKAGES, 282 DELEGATION_PACKAGE_ACCESS, 283 DELEGATION_PERMISSION_GRANT 284 }; 285 286 /** 287 * System property whose value is either "true" or "false", indicating whether 288 * device owner is present. 289 */ 290 private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner"; 291 292 private static final int STATUS_BAR_DISABLE_MASK = 293 StatusBarManager.DISABLE_EXPAND | 294 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 295 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 296 StatusBarManager.DISABLE_SEARCH; 297 298 private static final int STATUS_BAR_DISABLE2_MASK = 299 StatusBarManager.DISABLE2_QUICK_SETTINGS; 300 301 private static final Set<String> SECURE_SETTINGS_WHITELIST; 302 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 303 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 304 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 305 static { 306 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 307 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 308 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 309 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 310 311 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 312 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 313 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 314 315 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 316 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 317 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 318 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 319 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 320 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 321 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 322 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 323 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 324 325 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 326 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 327 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 328 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 329 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 330 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 331 } 332 333 /** 334 * Keyguard features that when set on a managed profile that doesn't have its own challenge will 335 * affect the profile's parent user. These can also be set on the managed profile's parent DPM 336 * instance. 337 */ 338 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 339 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 340 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 341 342 /** 343 * Keyguard features that when set on a profile affect the profile content or challenge only. 344 * These cannot be set on the managed profile's parent DPM instance 345 */ 346 private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY = 347 DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 348 349 /** Keyguard features that are allowed to be set on a managed profile */ 350 private static final int PROFILE_KEYGUARD_FEATURES = 351 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY; 352 353 private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000; 354 355 /** 356 * Minimum timeout in milliseconds after which unlocking with weak auth times out, 357 * i.e. the user has to use a strong authentication method like password, PIN or pattern. 358 */ 359 private static final long MINIMUM_STRONG_AUTH_TIMEOUT_MS = TimeUnit.HOURS.toMillis(1); 360 361 /** 362 * Strings logged with {@link 363 * com.android.internal.logging.nano.MetricsProto.MetricsEvent#PROVISIONING_ENTRY_POINT_ADB}. 364 */ 365 private static final String LOG_TAG_PROFILE_OWNER = "profile-owner"; 366 private static final String LOG_TAG_DEVICE_OWNER = "device-owner"; 367 368 final Context mContext; 369 final Injector mInjector; 370 final IPackageManager mIPackageManager; 371 final UserManager mUserManager; 372 final UserManagerInternal mUserManagerInternal; 373 final TelephonyManager mTelephonyManager; 374 private final LockPatternUtils mLockPatternUtils; 375 376 /** 377 * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p 378 * is requested for user u. 379 */ 380 private final Set<Pair<String, Integer>> mPackagesToRemove = 381 new ArraySet<Pair<String, Integer>>(); 382 383 final LocalService mLocalService; 384 385 // Stores and loads state on device and profile owners. 386 @VisibleForTesting 387 final Owners mOwners; 388 389 private final Binder mToken = new Binder(); 390 391 /** 392 * Whether or not device admin feature is supported. If it isn't return defaults for all 393 * public methods. 394 */ 395 boolean mHasFeature; 396 397 /** 398 * Whether or not this device is a watch. 399 */ 400 boolean mIsWatch; 401 402 private final SecurityLogMonitor mSecurityLogMonitor; 403 private NetworkLogger mNetworkLogger; 404 405 private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean(); 406 private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean(); 407 408 private SetupContentObserver mSetupContentObserver; 409 410 private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() { 411 @Override 412 public void run() { 413 if(mRemoteBugreportServiceIsActive.get()) { 414 onBugreportFailed(); 415 } 416 } 417 }; 418 419 /** Listens only if mHasFeature == true. */ 420 private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() { 421 422 @Override 423 public void onReceive(Context context, Intent intent) { 424 if (DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction()) 425 && mRemoteBugreportServiceIsActive.get()) { 426 onBugreportFinished(intent); 427 } 428 } 429 }; 430 431 /** Listens only if mHasFeature == true. */ 432 private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() { 433 434 @Override 435 public void onReceive(Context context, Intent intent) { 436 String action = intent.getAction(); 437 mInjector.getNotificationManager().cancel(LOG_TAG, 438 RemoteBugreportUtils.NOTIFICATION_ID); 439 if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED.equals(action)) { 440 onBugreportSharingAccepted(); 441 } else if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED.equals(action)) { 442 onBugreportSharingDeclined(); 443 } 444 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 445 } 446 }; 447 448 public static final class Lifecycle extends SystemService { 449 private DevicePolicyManagerService mService; 450 451 public Lifecycle(Context context) { 452 super(context); 453 mService = new DevicePolicyManagerService(context); 454 } 455 456 @Override 457 public void onStart() { 458 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 459 } 460 461 @Override 462 public void onBootPhase(int phase) { 463 mService.systemReady(phase); 464 } 465 466 @Override 467 public void onStartUser(int userHandle) { 468 mService.onStartUser(userHandle); 469 } 470 } 471 472 public static class DevicePolicyData { 473 @NonNull PasswordMetrics mActivePasswordMetrics = new PasswordMetrics(); 474 int mFailedPasswordAttempts = 0; 475 476 int mUserHandle; 477 int mPasswordOwner = -1; 478 long mLastMaximumTimeToLock = -1; 479 boolean mUserSetupComplete = false; 480 boolean mPaired = false; 481 int mUserProvisioningState; 482 int mPermissionPolicy; 483 484 boolean mDeviceProvisioningConfigApplied = false; 485 486 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 487 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 488 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 489 490 final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>(); 491 492 // This is the list of component allowed to start lock task mode. 493 List<String> mLockTaskPackages = new ArrayList<>(); 494 495 boolean mStatusBarDisabled = false; 496 497 ComponentName mRestrictionsProvider; 498 499 // Map of delegate package to delegation scopes 500 final ArrayMap<String, List<String>> mDelegationMap = new ArrayMap<>(); 501 502 boolean doNotAskCredentialsOnBoot = false; 503 504 Set<String> mAffiliationIds = new ArraySet<>(); 505 506 long mLastSecurityLogRetrievalTime = -1; 507 508 long mLastBugReportRequestTime = -1; 509 510 long mLastNetworkLogsRetrievalTime = -1; 511 512 boolean mDefaultInputMethodSet = false; 513 514 // Used for initialization of users created by createAndManageUsers. 515 boolean mAdminBroadcastPending = false; 516 PersistableBundle mInitBundle = null; 517 518 long mPasswordTokenHandle = 0; 519 520 public DevicePolicyData(int userHandle) { 521 mUserHandle = userHandle; 522 } 523 } 524 525 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 526 527 final Handler mHandler; 528 529 /** Listens on any device, even when mHasFeature == false. */ 530 final BroadcastReceiver mRootCaReceiver = new BroadcastReceiver() { 531 @Override 532 public void onReceive(Context context, Intent intent) { 533 if (StorageManager.inCryptKeeperBounce()) { 534 return; 535 } 536 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, getSendingUserId()); 537 new MonitoringCertNotificationTask(DevicePolicyManagerService.this, mInjector) 538 .execute(userHandle); 539 } 540 }; 541 542 /** Listens only if mHasFeature == true. */ 543 final BroadcastReceiver mReceiver = new BroadcastReceiver() { 544 @Override 545 public void onReceive(Context context, Intent intent) { 546 final String action = intent.getAction(); 547 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 548 getSendingUserId()); 549 550 /* 551 * Network logging would ideally be started in setDeviceOwnerSystemPropertyLocked(), 552 * however it's too early in the boot process to register with IIpConnectivityMetrics 553 * to listen for events. 554 */ 555 if (Intent.ACTION_USER_STARTED.equals(action) 556 && userHandle == mOwners.getDeviceOwnerUserId()) { 557 synchronized (DevicePolicyManagerService.this) { 558 if (isNetworkLoggingEnabledInternalLocked()) { 559 setNetworkLoggingActiveInternal(true); 560 } 561 } 562 } 563 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 564 && userHandle == mOwners.getDeviceOwnerUserId() 565 && getDeviceOwnerRemoteBugreportUri() != null) { 566 IntentFilter filterConsent = new IntentFilter(); 567 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 568 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 569 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 570 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 571 RemoteBugreportUtils.NOTIFICATION_ID, 572 RemoteBugreportUtils.buildNotification(mContext, 573 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 574 UserHandle.ALL); 575 } 576 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 577 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 578 if (VERBOSE_LOG) { 579 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 580 + action + " for user " + userHandle); 581 } 582 mHandler.post(new Runnable() { 583 @Override 584 public void run() { 585 handlePasswordExpirationNotification(userHandle); 586 } 587 }); 588 } 589 590 if (Intent.ACTION_USER_ADDED.equals(action)) { 591 sendUserAddedOrRemovedCommand(DeviceAdminReceiver.ACTION_USER_ADDED, userHandle); 592 synchronized (DevicePolicyManagerService.this) { 593 // It might take a while for the user to become affiliated. Make security 594 // and network logging unavailable in the meantime. 595 maybePauseDeviceWideLoggingLocked(); 596 } 597 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 598 sendUserAddedOrRemovedCommand(DeviceAdminReceiver.ACTION_USER_REMOVED, userHandle); 599 synchronized (DevicePolicyManagerService.this) { 600 // Check whether the user is affiliated, *before* removing its data. 601 boolean isRemovedUserAffiliated = isUserAffiliatedWithDeviceLocked(userHandle); 602 removeUserData(userHandle); 603 if (!isRemovedUserAffiliated) { 604 // We discard the logs when unaffiliated users are deleted (so that the 605 // device owner cannot retrieve data about that user after it's gone). 606 discardDeviceWideLogsLocked(); 607 // Resume logging if all remaining users are affiliated. 608 maybeResumeDeviceWideLoggingLocked(); 609 } 610 } 611 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 612 synchronized (DevicePolicyManagerService.this) { 613 // Reset the policy data 614 mUserData.remove(userHandle); 615 sendAdminEnabledBroadcastLocked(userHandle); 616 } 617 handlePackagesChanged(null /* check all admins */, userHandle); 618 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 619 handlePackagesChanged(null /* check all admins */, userHandle); 620 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 621 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 622 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 623 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 624 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 625 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 626 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 627 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 628 clearWipeProfileNotification(); 629 } 630 } 631 632 private void sendUserAddedOrRemovedCommand(String action, int userHandle) { 633 synchronized (DevicePolicyManagerService.this) { 634 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 635 if (deviceOwner != null) { 636 Bundle extras = new Bundle(); 637 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 638 sendAdminCommandLocked(deviceOwner, action, extras, null); 639 } 640 } 641 } 642 }; 643 644 static class ActiveAdmin { 645 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 646 private static final String TAG_TEST_ONLY_ADMIN = "test-only-admin"; 647 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 648 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 649 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 650 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 651 = "disable-bt-contacts-sharing"; 652 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 653 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 654 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 655 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 656 private static final String TAG_IS_NETWORK_LOGGING_ENABLED = "is_network_logging_enabled"; 657 private static final String TAG_ACCOUNT_TYPE = "account-type"; 658 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 659 = "permitted-accessiblity-services"; 660 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 661 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 662 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 663 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 664 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 665 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 666 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 667 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 668 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 669 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 670 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 671 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 672 private static final String TAG_STRONG_AUTH_UNLOCK_TIMEOUT = "strong-auth-unlock-timeout"; 673 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 674 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 675 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 676 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 677 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 678 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 679 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 680 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 681 private static final String ATTR_VALUE = "value"; 682 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 683 private static final String TAG_POLICIES = "policies"; 684 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 685 "cross-profile-widget-providers"; 686 private static final String TAG_PROVIDER = "provider"; 687 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 688 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 689 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 690 private static final String TAG_DEFAULT_ENABLED_USER_RESTRICTIONS = 691 "default-enabled-user-restrictions"; 692 private static final String TAG_RESTRICTION = "restriction"; 693 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 694 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 695 private static final String TAG_PARENT_ADMIN = "parent-admin"; 696 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 697 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 698 private static final String ATTR_LAST_NETWORK_LOGGING_NOTIFICATION = "last-notification"; 699 private static final String ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS = "num-notifications"; 700 701 final DeviceAdminInfo info; 702 703 704 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 705 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 706 707 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 708 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 709 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 710 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 711 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 712 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 713 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 714 @NonNull 715 PasswordMetrics minimumPasswordMetrics = new PasswordMetrics( 716 DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED, DEF_MINIMUM_PASSWORD_LENGTH, 717 DEF_MINIMUM_PASSWORD_LETTERS, DEF_MINIMUM_PASSWORD_UPPER_CASE, 718 DEF_MINIMUM_PASSWORD_LOWER_CASE, DEF_MINIMUM_PASSWORD_NUMERIC, 719 DEF_MINIMUM_PASSWORD_SYMBOLS, DEF_MINIMUM_PASSWORD_NON_LETTER); 720 721 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 722 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 723 724 long strongAuthUnlockTimeout = 0; // admin doesn't participate by default 725 726 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 727 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 728 729 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 730 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 731 732 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 733 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 734 735 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 736 737 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 738 739 boolean encryptionRequested = false; 740 boolean testOnlyAdmin = false; 741 boolean disableCamera = false; 742 boolean disableCallerId = false; 743 boolean disableContactsSearch = false; 744 boolean disableBluetoothContactSharing = true; 745 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 746 boolean requireAutoTime = false; // Can only be set by a device owner. 747 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 748 boolean isNetworkLoggingEnabled = false; // Can only be set by a device owner. 749 750 // one notification after enabling + 3 more after reboots 751 static final int DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN = 4; 752 int numNetworkLoggingNotifications = 0; 753 long lastNetworkLoggingNotificationTimeMs = 0; // Time in milliseconds since epoch 754 755 ActiveAdmin parentAdmin; 756 final boolean isParent; 757 758 static class TrustAgentInfo { 759 public PersistableBundle options; 760 TrustAgentInfo(PersistableBundle bundle) { 761 options = bundle; 762 } 763 } 764 765 final Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 766 767 // The list of permitted accessibility services package namesas set by a profile 768 // or device owner. Null means all accessibility services are allowed, empty means 769 // none except system services are allowed. 770 List<String> permittedAccessiblityServices; 771 772 // The list of permitted input methods package names as set by a profile or device owner. 773 // Null means all input methods are allowed, empty means none except system imes are 774 // allowed. 775 List<String> permittedInputMethods; 776 777 // List of package names to keep cached. 778 List<String> keepUninstalledPackages; 779 780 // TODO: review implementation decisions with frameworks team 781 boolean specifiesGlobalProxy = false; 782 String globalProxySpec = null; 783 String globalProxyExclusionList = null; 784 785 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 786 787 List<String> crossProfileWidgetProviders; 788 789 Bundle userRestrictions; 790 791 // User restrictions that have already been enabled by default for this admin (either when 792 // setting the device or profile owner, or during a system update if one of those "enabled 793 // by default" restrictions is newly added). 794 final Set<String> defaultEnabledRestrictionsAlreadySet = new ArraySet<>(); 795 796 // Support text provided by the admin to display to the user. 797 CharSequence shortSupportMessage = null; 798 CharSequence longSupportMessage = null; 799 800 // Background color of confirm credentials screen. Default: teal. 801 static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B"); 802 int organizationColor = DEF_ORGANIZATION_COLOR; 803 804 // Default title of confirm credentials screen 805 String organizationName = null; 806 807 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 808 info = _info; 809 isParent = parent; 810 } 811 812 ActiveAdmin getParentActiveAdmin() { 813 Preconditions.checkState(!isParent); 814 815 if (parentAdmin == null) { 816 parentAdmin = new ActiveAdmin(info, /* parent */ true); 817 } 818 return parentAdmin; 819 } 820 821 boolean hasParentActiveAdmin() { 822 return parentAdmin != null; 823 } 824 825 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 826 827 public UserHandle getUserHandle() { 828 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 829 } 830 831 void writeToXml(XmlSerializer out) 832 throws IllegalArgumentException, IllegalStateException, IOException { 833 out.startTag(null, TAG_POLICIES); 834 info.writePoliciesToXml(out); 835 out.endTag(null, TAG_POLICIES); 836 if (minimumPasswordMetrics.quality 837 != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 838 out.startTag(null, TAG_PASSWORD_QUALITY); 839 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.quality)); 840 out.endTag(null, TAG_PASSWORD_QUALITY); 841 if (minimumPasswordMetrics.length != DEF_MINIMUM_PASSWORD_LENGTH) { 842 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 843 out.attribute( 844 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.length)); 845 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 846 } 847 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 848 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 849 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 850 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 851 } 852 if (minimumPasswordMetrics.upperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 853 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 854 out.attribute( 855 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.upperCase)); 856 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 857 } 858 if (minimumPasswordMetrics.lowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 859 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 860 out.attribute( 861 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.lowerCase)); 862 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 863 } 864 if (minimumPasswordMetrics.letters != DEF_MINIMUM_PASSWORD_LETTERS) { 865 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 866 out.attribute( 867 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.letters)); 868 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 869 } 870 if (minimumPasswordMetrics.numeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 871 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 872 out.attribute( 873 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.numeric)); 874 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 875 } 876 if (minimumPasswordMetrics.symbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 877 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 878 out.attribute( 879 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.symbols)); 880 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 881 } 882 if (minimumPasswordMetrics.nonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 883 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 884 out.attribute( 885 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.nonLetter)); 886 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 887 } 888 } 889 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 890 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 891 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 892 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 893 } 894 if (strongAuthUnlockTimeout != DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 895 out.startTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 896 out.attribute(null, ATTR_VALUE, Long.toString(strongAuthUnlockTimeout)); 897 out.endTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 898 } 899 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 900 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 901 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 902 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 903 } 904 if (specifiesGlobalProxy) { 905 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 906 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 907 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 908 if (globalProxySpec != null) { 909 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 910 out.attribute(null, ATTR_VALUE, globalProxySpec); 911 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 912 } 913 if (globalProxyExclusionList != null) { 914 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 915 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 916 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 917 } 918 } 919 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 920 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 921 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 922 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 923 } 924 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 925 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 926 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 927 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 928 } 929 if (encryptionRequested) { 930 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 931 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 932 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 933 } 934 if (testOnlyAdmin) { 935 out.startTag(null, TAG_TEST_ONLY_ADMIN); 936 out.attribute(null, ATTR_VALUE, Boolean.toString(testOnlyAdmin)); 937 out.endTag(null, TAG_TEST_ONLY_ADMIN); 938 } 939 if (disableCamera) { 940 out.startTag(null, TAG_DISABLE_CAMERA); 941 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 942 out.endTag(null, TAG_DISABLE_CAMERA); 943 } 944 if (disableCallerId) { 945 out.startTag(null, TAG_DISABLE_CALLER_ID); 946 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 947 out.endTag(null, TAG_DISABLE_CALLER_ID); 948 } 949 if (disableContactsSearch) { 950 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 951 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 952 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 953 } 954 if (!disableBluetoothContactSharing) { 955 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 956 out.attribute(null, ATTR_VALUE, 957 Boolean.toString(disableBluetoothContactSharing)); 958 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 959 } 960 if (disableScreenCapture) { 961 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 962 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 963 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 964 } 965 if (requireAutoTime) { 966 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 967 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 968 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 969 } 970 if (forceEphemeralUsers) { 971 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 972 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 973 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 974 } 975 if (isNetworkLoggingEnabled) { 976 out.startTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 977 out.attribute(null, ATTR_VALUE, Boolean.toString(isNetworkLoggingEnabled)); 978 out.attribute(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS, 979 Integer.toString(numNetworkLoggingNotifications)); 980 out.attribute(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION, 981 Long.toString(lastNetworkLoggingNotificationTimeMs)); 982 out.endTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 983 } 984 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 985 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 986 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 987 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 988 } 989 if (!accountTypesWithManagementDisabled.isEmpty()) { 990 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 991 writeAttributeValuesToXml( 992 out, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 993 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 994 } 995 if (!trustAgentInfos.isEmpty()) { 996 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 997 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 998 for (Entry<String, TrustAgentInfo> entry : set) { 999 TrustAgentInfo trustAgentInfo = entry.getValue(); 1000 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 1001 out.attribute(null, ATTR_VALUE, entry.getKey()); 1002 if (trustAgentInfo.options != null) { 1003 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1004 try { 1005 trustAgentInfo.options.saveToXml(out); 1006 } catch (XmlPullParserException e) { 1007 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 1008 } 1009 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1010 } 1011 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 1012 } 1013 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1014 } 1015 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 1016 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1017 writeAttributeValuesToXml(out, TAG_PROVIDER, crossProfileWidgetProviders); 1018 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1019 } 1020 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 1021 permittedAccessiblityServices); 1022 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 1023 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 1024 if (hasUserRestrictions()) { 1025 UserRestrictionsUtils.writeRestrictions( 1026 out, userRestrictions, TAG_USER_RESTRICTIONS); 1027 } 1028 if (!defaultEnabledRestrictionsAlreadySet.isEmpty()) { 1029 out.startTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1030 writeAttributeValuesToXml( 1031 out, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1032 out.endTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1033 } 1034 if (!TextUtils.isEmpty(shortSupportMessage)) { 1035 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1036 out.text(shortSupportMessage.toString()); 1037 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1038 } 1039 if (!TextUtils.isEmpty(longSupportMessage)) { 1040 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 1041 out.text(longSupportMessage.toString()); 1042 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 1043 } 1044 if (parentAdmin != null) { 1045 out.startTag(null, TAG_PARENT_ADMIN); 1046 parentAdmin.writeToXml(out); 1047 out.endTag(null, TAG_PARENT_ADMIN); 1048 } 1049 if (organizationColor != DEF_ORGANIZATION_COLOR) { 1050 out.startTag(null, TAG_ORGANIZATION_COLOR); 1051 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 1052 out.endTag(null, TAG_ORGANIZATION_COLOR); 1053 } 1054 if (organizationName != null) { 1055 out.startTag(null, TAG_ORGANIZATION_NAME); 1056 out.text(organizationName); 1057 out.endTag(null, TAG_ORGANIZATION_NAME); 1058 } 1059 } 1060 1061 void writePackageListToXml(XmlSerializer out, String outerTag, 1062 List<String> packageList) 1063 throws IllegalArgumentException, IllegalStateException, IOException { 1064 if (packageList == null) { 1065 return; 1066 } 1067 1068 out.startTag(null, outerTag); 1069 writeAttributeValuesToXml(out, TAG_PACKAGE_LIST_ITEM, packageList); 1070 out.endTag(null, outerTag); 1071 } 1072 1073 void writeAttributeValuesToXml(XmlSerializer out, String tag, 1074 @NonNull Collection<String> values) throws IOException { 1075 for (String value : values) { 1076 out.startTag(null, tag); 1077 out.attribute(null, ATTR_VALUE, value); 1078 out.endTag(null, tag); 1079 } 1080 } 1081 1082 void readFromXml(XmlPullParser parser) 1083 throws XmlPullParserException, IOException { 1084 int outerDepth = parser.getDepth(); 1085 int type; 1086 while ((type=parser.next()) != END_DOCUMENT 1087 && (type != END_TAG || parser.getDepth() > outerDepth)) { 1088 if (type == END_TAG || type == TEXT) { 1089 continue; 1090 } 1091 String tag = parser.getName(); 1092 if (TAG_POLICIES.equals(tag)) { 1093 info.readPoliciesFromXml(parser); 1094 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 1095 minimumPasswordMetrics.quality = Integer.parseInt( 1096 parser.getAttributeValue(null, ATTR_VALUE)); 1097 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 1098 minimumPasswordMetrics.length = Integer.parseInt( 1099 parser.getAttributeValue(null, ATTR_VALUE)); 1100 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 1101 passwordHistoryLength = Integer.parseInt( 1102 parser.getAttributeValue(null, ATTR_VALUE)); 1103 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 1104 minimumPasswordMetrics.upperCase = Integer.parseInt( 1105 parser.getAttributeValue(null, ATTR_VALUE)); 1106 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 1107 minimumPasswordMetrics.lowerCase = Integer.parseInt( 1108 parser.getAttributeValue(null, ATTR_VALUE)); 1109 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 1110 minimumPasswordMetrics.letters = Integer.parseInt( 1111 parser.getAttributeValue(null, ATTR_VALUE)); 1112 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 1113 minimumPasswordMetrics.numeric = Integer.parseInt( 1114 parser.getAttributeValue(null, ATTR_VALUE)); 1115 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 1116 minimumPasswordMetrics.symbols = Integer.parseInt( 1117 parser.getAttributeValue(null, ATTR_VALUE)); 1118 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 1119 minimumPasswordMetrics.nonLetter = Integer.parseInt( 1120 parser.getAttributeValue(null, ATTR_VALUE)); 1121 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 1122 maximumTimeToUnlock = Long.parseLong( 1123 parser.getAttributeValue(null, ATTR_VALUE)); 1124 } else if (TAG_STRONG_AUTH_UNLOCK_TIMEOUT.equals(tag)) { 1125 strongAuthUnlockTimeout = Long.parseLong( 1126 parser.getAttributeValue(null, ATTR_VALUE)); 1127 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 1128 maximumFailedPasswordsForWipe = Integer.parseInt( 1129 parser.getAttributeValue(null, ATTR_VALUE)); 1130 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 1131 specifiesGlobalProxy = Boolean.parseBoolean( 1132 parser.getAttributeValue(null, ATTR_VALUE)); 1133 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 1134 globalProxySpec = 1135 parser.getAttributeValue(null, ATTR_VALUE); 1136 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 1137 globalProxyExclusionList = 1138 parser.getAttributeValue(null, ATTR_VALUE); 1139 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 1140 passwordExpirationTimeout = Long.parseLong( 1141 parser.getAttributeValue(null, ATTR_VALUE)); 1142 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 1143 passwordExpirationDate = Long.parseLong( 1144 parser.getAttributeValue(null, ATTR_VALUE)); 1145 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 1146 encryptionRequested = Boolean.parseBoolean( 1147 parser.getAttributeValue(null, ATTR_VALUE)); 1148 } else if (TAG_TEST_ONLY_ADMIN.equals(tag)) { 1149 testOnlyAdmin = Boolean.parseBoolean( 1150 parser.getAttributeValue(null, ATTR_VALUE)); 1151 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 1152 disableCamera = Boolean.parseBoolean( 1153 parser.getAttributeValue(null, ATTR_VALUE)); 1154 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 1155 disableCallerId = Boolean.parseBoolean( 1156 parser.getAttributeValue(null, ATTR_VALUE)); 1157 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 1158 disableContactsSearch = Boolean.parseBoolean( 1159 parser.getAttributeValue(null, ATTR_VALUE)); 1160 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 1161 disableBluetoothContactSharing = Boolean.parseBoolean(parser 1162 .getAttributeValue(null, ATTR_VALUE)); 1163 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 1164 disableScreenCapture = Boolean.parseBoolean( 1165 parser.getAttributeValue(null, ATTR_VALUE)); 1166 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 1167 requireAutoTime = Boolean.parseBoolean( 1168 parser.getAttributeValue(null, ATTR_VALUE)); 1169 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 1170 forceEphemeralUsers = Boolean.parseBoolean( 1171 parser.getAttributeValue(null, ATTR_VALUE)); 1172 } else if (TAG_IS_NETWORK_LOGGING_ENABLED.equals(tag)) { 1173 isNetworkLoggingEnabled = Boolean.parseBoolean( 1174 parser.getAttributeValue(null, ATTR_VALUE)); 1175 lastNetworkLoggingNotificationTimeMs = Long.parseLong( 1176 parser.getAttributeValue(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION)); 1177 numNetworkLoggingNotifications = Integer.parseInt( 1178 parser.getAttributeValue(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS)); 1179 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 1180 disabledKeyguardFeatures = Integer.parseInt( 1181 parser.getAttributeValue(null, ATTR_VALUE)); 1182 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 1183 readAttributeValues( 1184 parser, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1185 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 1186 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 1187 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 1188 crossProfileWidgetProviders = new ArrayList<>(); 1189 readAttributeValues(parser, TAG_PROVIDER, crossProfileWidgetProviders); 1190 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 1191 permittedAccessiblityServices = readPackageList(parser, tag); 1192 } else if (TAG_PERMITTED_IMES.equals(tag)) { 1193 permittedInputMethods = readPackageList(parser, tag); 1194 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 1195 keepUninstalledPackages = readPackageList(parser, tag); 1196 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 1197 userRestrictions = UserRestrictionsUtils.readRestrictions(parser); 1198 } else if (TAG_DEFAULT_ENABLED_USER_RESTRICTIONS.equals(tag)) { 1199 readAttributeValues( 1200 parser, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1201 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 1202 type = parser.next(); 1203 if (type == XmlPullParser.TEXT) { 1204 shortSupportMessage = parser.getText(); 1205 } else { 1206 Log.w(LOG_TAG, "Missing text when loading short support message"); 1207 } 1208 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 1209 type = parser.next(); 1210 if (type == XmlPullParser.TEXT) { 1211 longSupportMessage = parser.getText(); 1212 } else { 1213 Log.w(LOG_TAG, "Missing text when loading long support message"); 1214 } 1215 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1216 Preconditions.checkState(!isParent); 1217 1218 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1219 parentAdmin.readFromXml(parser); 1220 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1221 organizationColor = Integer.parseInt( 1222 parser.getAttributeValue(null, ATTR_VALUE)); 1223 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1224 type = parser.next(); 1225 if (type == XmlPullParser.TEXT) { 1226 organizationName = parser.getText(); 1227 } else { 1228 Log.w(LOG_TAG, "Missing text when loading organization name"); 1229 } 1230 } else { 1231 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1232 XmlUtils.skipCurrentTag(parser); 1233 } 1234 } 1235 } 1236 1237 private List<String> readPackageList(XmlPullParser parser, 1238 String tag) throws XmlPullParserException, IOException { 1239 List<String> result = new ArrayList<String>(); 1240 int outerDepth = parser.getDepth(); 1241 int outerType; 1242 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1243 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1244 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1245 continue; 1246 } 1247 String outerTag = parser.getName(); 1248 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1249 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1250 if (packageName != null) { 1251 result.add(packageName); 1252 } else { 1253 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1254 } 1255 } else { 1256 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1257 } 1258 } 1259 return result; 1260 } 1261 1262 private void readAttributeValues( 1263 XmlPullParser parser, String tag, Collection<String> result) 1264 throws XmlPullParserException, IOException { 1265 result.clear(); 1266 int outerDepthDAM = parser.getDepth(); 1267 int typeDAM; 1268 while ((typeDAM=parser.next()) != END_DOCUMENT 1269 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1270 if (typeDAM == END_TAG || typeDAM == TEXT) { 1271 continue; 1272 } 1273 String tagDAM = parser.getName(); 1274 if (tag.equals(tagDAM)) { 1275 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1276 } else { 1277 Slog.e(LOG_TAG, "Expected tag " + tag + " but found " + tagDAM); 1278 } 1279 } 1280 } 1281 1282 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1283 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1284 int outerDepthDAM = parser.getDepth(); 1285 int typeDAM; 1286 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1287 while ((typeDAM=parser.next()) != END_DOCUMENT 1288 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1289 if (typeDAM == END_TAG || typeDAM == TEXT) { 1290 continue; 1291 } 1292 String tagDAM = parser.getName(); 1293 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1294 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1295 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1296 result.put(component, trustAgentInfo); 1297 } else { 1298 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1299 } 1300 } 1301 return result; 1302 } 1303 1304 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1305 throws XmlPullParserException, IOException { 1306 int outerDepthDAM = parser.getDepth(); 1307 int typeDAM; 1308 TrustAgentInfo result = new TrustAgentInfo(null); 1309 while ((typeDAM=parser.next()) != END_DOCUMENT 1310 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1311 if (typeDAM == END_TAG || typeDAM == TEXT) { 1312 continue; 1313 } 1314 String tagDAM = parser.getName(); 1315 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 1316 result.options = PersistableBundle.restoreFromXml(parser); 1317 } else { 1318 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1319 } 1320 } 1321 return result; 1322 } 1323 1324 boolean hasUserRestrictions() { 1325 return userRestrictions != null && userRestrictions.size() > 0; 1326 } 1327 1328 Bundle ensureUserRestrictions() { 1329 if (userRestrictions == null) { 1330 userRestrictions = new Bundle(); 1331 } 1332 return userRestrictions; 1333 } 1334 1335 void dump(String prefix, PrintWriter pw) { 1336 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1337 pw.print(prefix); pw.print("testOnlyAdmin="); 1338 pw.println(testOnlyAdmin); 1339 pw.print(prefix); pw.println("policies:"); 1340 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1341 if (pols != null) { 1342 for (int i=0; i<pols.size(); i++) { 1343 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1344 } 1345 } 1346 pw.print(prefix); pw.print("passwordQuality=0x"); 1347 pw.println(Integer.toHexString(minimumPasswordMetrics.quality)); 1348 pw.print(prefix); pw.print("minimumPasswordLength="); 1349 pw.println(minimumPasswordMetrics.length); 1350 pw.print(prefix); pw.print("passwordHistoryLength="); 1351 pw.println(passwordHistoryLength); 1352 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1353 pw.println(minimumPasswordMetrics.upperCase); 1354 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1355 pw.println(minimumPasswordMetrics.lowerCase); 1356 pw.print(prefix); pw.print("minimumPasswordLetters="); 1357 pw.println(minimumPasswordMetrics.letters); 1358 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1359 pw.println(minimumPasswordMetrics.numeric); 1360 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1361 pw.println(minimumPasswordMetrics.symbols); 1362 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1363 pw.println(minimumPasswordMetrics.nonLetter); 1364 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1365 pw.println(maximumTimeToUnlock); 1366 pw.print(prefix); pw.print("strongAuthUnlockTimeout="); 1367 pw.println(strongAuthUnlockTimeout); 1368 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1369 pw.println(maximumFailedPasswordsForWipe); 1370 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1371 pw.println(specifiesGlobalProxy); 1372 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1373 pw.println(passwordExpirationTimeout); 1374 pw.print(prefix); pw.print("passwordExpirationDate="); 1375 pw.println(passwordExpirationDate); 1376 if (globalProxySpec != null) { 1377 pw.print(prefix); pw.print("globalProxySpec="); 1378 pw.println(globalProxySpec); 1379 } 1380 if (globalProxyExclusionList != null) { 1381 pw.print(prefix); pw.print("globalProxyEclusionList="); 1382 pw.println(globalProxyExclusionList); 1383 } 1384 pw.print(prefix); pw.print("encryptionRequested="); 1385 pw.println(encryptionRequested); 1386 pw.print(prefix); pw.print("disableCamera="); 1387 pw.println(disableCamera); 1388 pw.print(prefix); pw.print("disableCallerId="); 1389 pw.println(disableCallerId); 1390 pw.print(prefix); pw.print("disableContactsSearch="); 1391 pw.println(disableContactsSearch); 1392 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1393 pw.println(disableBluetoothContactSharing); 1394 pw.print(prefix); pw.print("disableScreenCapture="); 1395 pw.println(disableScreenCapture); 1396 pw.print(prefix); pw.print("requireAutoTime="); 1397 pw.println(requireAutoTime); 1398 pw.print(prefix); pw.print("forceEphemeralUsers="); 1399 pw.println(forceEphemeralUsers); 1400 pw.print(prefix); pw.print("isNetworkLoggingEnabled="); 1401 pw.println(isNetworkLoggingEnabled); 1402 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1403 pw.println(disabledKeyguardFeatures); 1404 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1405 pw.println(crossProfileWidgetProviders); 1406 if (permittedAccessiblityServices != null) { 1407 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1408 pw.println(permittedAccessiblityServices); 1409 } 1410 if (permittedInputMethods != null) { 1411 pw.print(prefix); pw.print("permittedInputMethods="); 1412 pw.println(permittedInputMethods); 1413 } 1414 if (keepUninstalledPackages != null) { 1415 pw.print(prefix); pw.print("keepUninstalledPackages="); 1416 pw.println(keepUninstalledPackages); 1417 } 1418 pw.print(prefix); pw.print("organizationColor="); 1419 pw.println(organizationColor); 1420 if (organizationName != null) { 1421 pw.print(prefix); pw.print("organizationName="); 1422 pw.println(organizationName); 1423 } 1424 pw.print(prefix); pw.println("userRestrictions:"); 1425 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1426 pw.print(prefix); pw.print("defaultEnabledRestrictionsAlreadySet="); 1427 pw.println(defaultEnabledRestrictionsAlreadySet); 1428 pw.print(prefix); pw.print("isParent="); 1429 pw.println(isParent); 1430 if (parentAdmin != null) { 1431 pw.print(prefix); pw.println("parentAdmin:"); 1432 parentAdmin.dump(prefix + " ", pw); 1433 } 1434 } 1435 } 1436 1437 private void handlePackagesChanged(String packageName, int userHandle) { 1438 boolean removedAdmin = false; 1439 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1440 DevicePolicyData policy = getUserData(userHandle); 1441 synchronized (this) { 1442 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1443 ActiveAdmin aa = policy.mAdminList.get(i); 1444 try { 1445 // If we're checking all packages or if the specific one we're checking matches, 1446 // then check if the package and receiver still exist. 1447 final String adminPackage = aa.info.getPackageName(); 1448 if (packageName == null || packageName.equals(adminPackage)) { 1449 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1450 || mIPackageManager.getReceiverInfo(aa.info.getComponent(), 1451 PackageManager.MATCH_DIRECT_BOOT_AWARE 1452 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 1453 userHandle) == null) { 1454 removedAdmin = true; 1455 policy.mAdminList.remove(i); 1456 policy.mAdminMap.remove(aa.info.getComponent()); 1457 } 1458 } 1459 } catch (RemoteException re) { 1460 // Shouldn't happen. 1461 } 1462 } 1463 if (removedAdmin) { 1464 validatePasswordOwnerLocked(policy); 1465 } 1466 1467 boolean removedDelegate = false; 1468 1469 // Check if a delegate was removed. 1470 for (int i = policy.mDelegationMap.size() - 1; i >= 0; i--) { 1471 final String delegatePackage = policy.mDelegationMap.keyAt(i); 1472 if (isRemovedPackage(packageName, delegatePackage, userHandle)) { 1473 policy.mDelegationMap.removeAt(i); 1474 removedDelegate = true; 1475 } 1476 } 1477 1478 // Persist updates if the removed package was an admin or delegate. 1479 if (removedAdmin || removedDelegate) { 1480 saveSettingsLocked(policy.mUserHandle); 1481 } 1482 } 1483 if (removedAdmin) { 1484 // The removed admin might have disabled camera, so update user restrictions. 1485 pushUserRestrictions(userHandle); 1486 } 1487 } 1488 1489 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1490 try { 1491 return targetPackage != null 1492 && (changedPackage == null || changedPackage.equals(targetPackage)) 1493 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1494 } catch (RemoteException e) { 1495 // Shouldn't happen 1496 } 1497 1498 return false; 1499 } 1500 1501 /** 1502 * Unit test will subclass it to inject mocks. 1503 */ 1504 @VisibleForTesting 1505 static class Injector { 1506 1507 private final Context mContext; 1508 1509 Injector(Context context) { 1510 mContext = context; 1511 } 1512 1513 Context createContextAsUser(UserHandle user) throws PackageManager.NameNotFoundException { 1514 final String packageName = mContext.getPackageName(); 1515 return mContext.createPackageContextAsUser(packageName, 0, user); 1516 } 1517 1518 Resources getResources() { 1519 return mContext.getResources(); 1520 } 1521 1522 Owners newOwners() { 1523 return new Owners(getUserManager(), getUserManagerInternal(), 1524 getPackageManagerInternal()); 1525 } 1526 1527 UserManager getUserManager() { 1528 return UserManager.get(mContext); 1529 } 1530 1531 UserManagerInternal getUserManagerInternal() { 1532 return LocalServices.getService(UserManagerInternal.class); 1533 } 1534 1535 PackageManagerInternal getPackageManagerInternal() { 1536 return LocalServices.getService(PackageManagerInternal.class); 1537 } 1538 1539 NotificationManager getNotificationManager() { 1540 return mContext.getSystemService(NotificationManager.class); 1541 } 1542 1543 IIpConnectivityMetrics getIIpConnectivityMetrics() { 1544 return (IIpConnectivityMetrics) IIpConnectivityMetrics.Stub.asInterface( 1545 ServiceManager.getService(IpConnectivityLog.SERVICE_NAME)); 1546 } 1547 1548 PackageManager getPackageManager() { 1549 return mContext.getPackageManager(); 1550 } 1551 1552 PowerManagerInternal getPowerManagerInternal() { 1553 return LocalServices.getService(PowerManagerInternal.class); 1554 } 1555 1556 TelephonyManager getTelephonyManager() { 1557 return TelephonyManager.from(mContext); 1558 } 1559 1560 TrustManager getTrustManager() { 1561 return (TrustManager) mContext.getSystemService(Context.TRUST_SERVICE); 1562 } 1563 1564 AlarmManager getAlarmManager() { 1565 return (AlarmManager) mContext.getSystemService(AlarmManager.class); 1566 } 1567 1568 IWindowManager getIWindowManager() { 1569 return IWindowManager.Stub 1570 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1571 } 1572 1573 IActivityManager getIActivityManager() { 1574 return ActivityManager.getService(); 1575 } 1576 1577 IPackageManager getIPackageManager() { 1578 return AppGlobals.getPackageManager(); 1579 } 1580 1581 IBackupManager getIBackupManager() { 1582 return IBackupManager.Stub.asInterface( 1583 ServiceManager.getService(Context.BACKUP_SERVICE)); 1584 } 1585 1586 IAudioService getIAudioService() { 1587 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1588 } 1589 1590 boolean isBuildDebuggable() { 1591 return Build.IS_DEBUGGABLE; 1592 } 1593 1594 LockPatternUtils newLockPatternUtils() { 1595 return new LockPatternUtils(mContext); 1596 } 1597 1598 boolean storageManagerIsFileBasedEncryptionEnabled() { 1599 return StorageManager.isFileEncryptedNativeOnly(); 1600 } 1601 1602 boolean storageManagerIsNonDefaultBlockEncrypted() { 1603 long identity = Binder.clearCallingIdentity(); 1604 try { 1605 return StorageManager.isNonDefaultBlockEncrypted(); 1606 } finally { 1607 Binder.restoreCallingIdentity(identity); 1608 } 1609 } 1610 1611 boolean storageManagerIsEncrypted() { 1612 return StorageManager.isEncrypted(); 1613 } 1614 1615 boolean storageManagerIsEncryptable() { 1616 return StorageManager.isEncryptable(); 1617 } 1618 1619 Looper getMyLooper() { 1620 return Looper.myLooper(); 1621 } 1622 1623 WifiManager getWifiManager() { 1624 return mContext.getSystemService(WifiManager.class); 1625 } 1626 1627 long binderClearCallingIdentity() { 1628 return Binder.clearCallingIdentity(); 1629 } 1630 1631 void binderRestoreCallingIdentity(long token) { 1632 Binder.restoreCallingIdentity(token); 1633 } 1634 1635 int binderGetCallingUid() { 1636 return Binder.getCallingUid(); 1637 } 1638 1639 int binderGetCallingPid() { 1640 return Binder.getCallingPid(); 1641 } 1642 1643 UserHandle binderGetCallingUserHandle() { 1644 return Binder.getCallingUserHandle(); 1645 } 1646 1647 boolean binderIsCallingUidMyUid() { 1648 return getCallingUid() == Process.myUid(); 1649 } 1650 1651 final int userHandleGetCallingUserId() { 1652 return UserHandle.getUserId(binderGetCallingUid()); 1653 } 1654 1655 File environmentGetUserSystemDirectory(int userId) { 1656 return Environment.getUserSystemDirectory(userId); 1657 } 1658 1659 void powerManagerGoToSleep(long time, int reason, int flags) { 1660 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1661 } 1662 1663 void powerManagerReboot(String reason) { 1664 mContext.getSystemService(PowerManager.class).reboot(reason); 1665 } 1666 1667 void recoverySystemRebootWipeUserData(boolean shutdown, String reason, boolean force) 1668 throws IOException { 1669 RecoverySystem.rebootWipeUserData(mContext, shutdown, reason, force); 1670 } 1671 1672 boolean systemPropertiesGetBoolean(String key, boolean def) { 1673 return SystemProperties.getBoolean(key, def); 1674 } 1675 1676 long systemPropertiesGetLong(String key, long def) { 1677 return SystemProperties.getLong(key, def); 1678 } 1679 1680 String systemPropertiesGet(String key, String def) { 1681 return SystemProperties.get(key, def); 1682 } 1683 1684 String systemPropertiesGet(String key) { 1685 return SystemProperties.get(key); 1686 } 1687 1688 void systemPropertiesSet(String key, String value) { 1689 SystemProperties.set(key, value); 1690 } 1691 1692 boolean userManagerIsSplitSystemUser() { 1693 return UserManager.isSplitSystemUser(); 1694 } 1695 1696 String getDevicePolicyFilePathForSystemUser() { 1697 return "/data/system/"; 1698 } 1699 1700 void registerContentObserver(Uri uri, boolean notifyForDescendents, 1701 ContentObserver observer, int userHandle) { 1702 mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents, 1703 observer, userHandle); 1704 } 1705 1706 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1707 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1708 name, def, userHandle); 1709 } 1710 1711 String settingsSecureGetStringForUser(String name, int userHandle) { 1712 return Settings.Secure.getStringForUser(mContext.getContentResolver(), name, 1713 userHandle); 1714 } 1715 1716 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1717 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1718 name, value, userHandle); 1719 } 1720 1721 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1722 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1723 name, value, userHandle); 1724 } 1725 1726 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1727 Settings.Global.putStringForUser(mContext.getContentResolver(), 1728 name, value, userHandle); 1729 } 1730 1731 void settingsSecurePutInt(String name, int value) { 1732 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1733 } 1734 1735 int settingsGlobalGetInt(String name, int def) { 1736 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1737 } 1738 1739 void settingsGlobalPutInt(String name, int value) { 1740 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1741 } 1742 1743 void settingsSecurePutString(String name, String value) { 1744 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1745 } 1746 1747 void settingsGlobalPutString(String name, String value) { 1748 Settings.Global.putString(mContext.getContentResolver(), name, value); 1749 } 1750 1751 void securityLogSetLoggingEnabledProperty(boolean enabled) { 1752 SecurityLog.setLoggingEnabledProperty(enabled); 1753 } 1754 1755 boolean securityLogGetLoggingEnabledProperty() { 1756 return SecurityLog.getLoggingEnabledProperty(); 1757 } 1758 1759 boolean securityLogIsLoggingEnabled() { 1760 return SecurityLog.isLoggingEnabled(); 1761 } 1762 1763 KeyChainConnection keyChainBindAsUser(UserHandle user) throws InterruptedException { 1764 return KeyChain.bindAsUser(mContext, user); 1765 } 1766 } 1767 1768 /** 1769 * Instantiates the service. 1770 */ 1771 public DevicePolicyManagerService(Context context) { 1772 this(new Injector(context)); 1773 } 1774 1775 @VisibleForTesting 1776 DevicePolicyManagerService(Injector injector) { 1777 mInjector = injector; 1778 mContext = Preconditions.checkNotNull(injector.mContext); 1779 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1780 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1781 1782 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1783 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1784 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1785 mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager()); 1786 1787 mLocalService = new LocalService(); 1788 mLockPatternUtils = injector.newLockPatternUtils(); 1789 1790 mSecurityLogMonitor = new SecurityLogMonitor(this); 1791 1792 mHasFeature = mInjector.getPackageManager() 1793 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1794 mIsWatch = mInjector.getPackageManager() 1795 .hasSystemFeature(PackageManager.FEATURE_WATCH); 1796 1797 // Broadcast filter for changes to the trusted certificate store. These changes get a 1798 // separate intent filter so we can listen to them even when device_admin is off. 1799 IntentFilter filter = new IntentFilter(); 1800 filter.addAction(Intent.ACTION_USER_STARTED); 1801 filter.addAction(Intent.ACTION_USER_UNLOCKED); 1802 filter.addAction(KeyChain.ACTION_TRUST_STORE_CHANGED); 1803 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1804 mContext.registerReceiverAsUser(mRootCaReceiver, UserHandle.ALL, filter, null, mHandler); 1805 1806 if (!mHasFeature) { 1807 // Skip the rest of the initialization 1808 return; 1809 } 1810 1811 filter = new IntentFilter(); 1812 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1813 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1814 filter.addAction(Intent.ACTION_USER_ADDED); 1815 filter.addAction(Intent.ACTION_USER_REMOVED); 1816 filter.addAction(Intent.ACTION_USER_STARTED); 1817 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1818 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1819 filter = new IntentFilter(); 1820 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1821 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1822 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1823 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1824 filter.addDataScheme("package"); 1825 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1826 filter = new IntentFilter(); 1827 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1828 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1829 1830 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1831 1832 mSetupContentObserver = new SetupContentObserver(mHandler); 1833 } 1834 1835 /** 1836 * Creates and loads the policy data from xml. 1837 * @param userHandle the user for whom to load the policy data 1838 * @return 1839 */ 1840 @NonNull 1841 DevicePolicyData getUserData(int userHandle) { 1842 synchronized (this) { 1843 DevicePolicyData policy = mUserData.get(userHandle); 1844 if (policy == null) { 1845 policy = new DevicePolicyData(userHandle); 1846 mUserData.append(userHandle, policy); 1847 loadSettingsLocked(policy, userHandle); 1848 } 1849 return policy; 1850 } 1851 } 1852 1853 /** 1854 * Creates and loads the policy data from xml for data that is shared between 1855 * various profiles of a user. In contrast to {@link #getUserData(int)} 1856 * it allows access to data of users other than the calling user. 1857 * 1858 * This function should only be used for shared data, e.g. everything regarding 1859 * passwords and should be removed once multiple screen locks are present. 1860 * @param userHandle the user for whom to load the policy data 1861 * @return 1862 */ 1863 DevicePolicyData getUserDataUnchecked(int userHandle) { 1864 long ident = mInjector.binderClearCallingIdentity(); 1865 try { 1866 return getUserData(userHandle); 1867 } finally { 1868 mInjector.binderRestoreCallingIdentity(ident); 1869 } 1870 } 1871 1872 void removeUserData(int userHandle) { 1873 synchronized (this) { 1874 if (userHandle == UserHandle.USER_SYSTEM) { 1875 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1876 return; 1877 } 1878 mOwners.removeProfileOwner(userHandle); 1879 mOwners.writeProfileOwner(userHandle); 1880 1881 DevicePolicyData policy = mUserData.get(userHandle); 1882 if (policy != null) { 1883 mUserData.remove(userHandle); 1884 } 1885 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1886 DEVICE_POLICIES_XML); 1887 policyFile.delete(); 1888 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1889 } 1890 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1891 } 1892 1893 void loadOwners() { 1894 synchronized (this) { 1895 mOwners.load(); 1896 setDeviceOwnerSystemPropertyLocked(); 1897 findOwnerComponentIfNecessaryLocked(); 1898 migrateUserRestrictionsIfNecessaryLocked(); 1899 setDefaultEnabledUserRestrictionsIfNecessaryLocked(); 1900 1901 // TODO PO may not have a class name either due to b/17652534. Address that too. 1902 1903 updateDeviceOwnerLocked(); 1904 } 1905 } 1906 1907 private void setDefaultEnabledUserRestrictionsIfNecessaryLocked() { 1908 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 1909 if (deviceOwner != null 1910 && !UserRestrictionsUtils.getDefaultEnabledForDeviceOwner().equals( 1911 deviceOwner.defaultEnabledRestrictionsAlreadySet)) { 1912 Slog.i(LOG_TAG,"New user restrictions need to be set by default for the device owner"); 1913 1914 if (VERBOSE_LOG) { 1915 Slog.d(LOG_TAG,"Default enabled restrictions for DO: " 1916 + UserRestrictionsUtils.getDefaultEnabledForDeviceOwner() 1917 + ". Restrictions already enabled: " 1918 + deviceOwner.defaultEnabledRestrictionsAlreadySet); 1919 } 1920 1921 Set<String> restrictionsToSet = new ArraySet<>( 1922 UserRestrictionsUtils.getDefaultEnabledForDeviceOwner()); 1923 restrictionsToSet.removeAll(deviceOwner.defaultEnabledRestrictionsAlreadySet); 1924 if (!restrictionsToSet.isEmpty()) { 1925 for (String restriction : restrictionsToSet) { 1926 deviceOwner.ensureUserRestrictions().putBoolean(restriction, true); 1927 } 1928 deviceOwner.defaultEnabledRestrictionsAlreadySet.addAll(restrictionsToSet); 1929 Slog.i(LOG_TAG, 1930 "Enabled the following restrictions by default: " + restrictionsToSet); 1931 1932 saveUserRestrictionsLocked(mOwners.getDeviceOwnerUserId()); 1933 } 1934 } 1935 } 1936 1937 private void setDeviceOwnerSystemPropertyLocked() { 1938 final boolean deviceProvisioned = 1939 mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0; 1940 // If the device is not provisioned and there is currently no device owner, do not set the 1941 // read-only system property yet, since Device owner may still be provisioned. For Wear 1942 // devices, if there is already a device owner then it's OK to set the property to true now, 1943 // regardless the provision state. 1944 final boolean isWatchWithDeviceOwner = mIsWatch && mOwners.hasDeviceOwner(); 1945 if (!isWatchWithDeviceOwner && !deviceProvisioned) { 1946 return; 1947 } 1948 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 1949 // always false at this point. 1950 if (StorageManager.inCryptKeeperBounce()) { 1951 return; 1952 } 1953 1954 if (!TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT))) { 1955 Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 1956 } else { 1957 if (mOwners.hasDeviceOwner()) { 1958 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "true"); 1959 Slog.i(LOG_TAG, "Set ro.device_owner property to true"); 1960 1961 if (mInjector.securityLogGetLoggingEnabledProperty()) { 1962 mSecurityLogMonitor.start(); 1963 maybePauseDeviceWideLoggingLocked(); 1964 } 1965 } else { 1966 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "false"); 1967 Slog.i(LOG_TAG, "Set ro.device_owner property to false"); 1968 } 1969 } 1970 } 1971 1972 private void findOwnerComponentIfNecessaryLocked() { 1973 if (!mOwners.hasDeviceOwner()) { 1974 return; 1975 } 1976 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1977 1978 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1979 return; // Already a full component name. 1980 } 1981 1982 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1983 doComponentName.getPackageName(), 1984 mOwners.getDeviceOwnerUserId()); 1985 if (doComponent == null) { 1986 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1987 } else { 1988 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1989 doComponent, 1990 mOwners.getDeviceOwnerName(), 1991 mOwners.getDeviceOwnerUserId(), 1992 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1993 mOwners.writeDeviceOwner(); 1994 if (VERBOSE_LOG) { 1995 Log.v(LOG_TAG, "Device owner component filled in"); 1996 } 1997 } 1998 } 1999 2000 /** 2001 * We didn't use to persist user restrictions for each owners but only persisted in user 2002 * manager. 2003 */ 2004 private void migrateUserRestrictionsIfNecessaryLocked() { 2005 boolean migrated = false; 2006 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 2007 // except for the "system controlled" ones. 2008 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 2009 if (VERBOSE_LOG) { 2010 Log.v(LOG_TAG, "Migrating DO user restrictions"); 2011 } 2012 migrated = true; 2013 2014 // Migrate user 0 restrictions to DO. 2015 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 2016 2017 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 2018 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 2019 2020 // Push DO user restrictions to user manager. 2021 pushUserRestrictions(UserHandle.USER_SYSTEM); 2022 2023 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 2024 } 2025 2026 // Migrate for POs. 2027 2028 // The following restrictions can be set on secondary users by the device owner, so we 2029 // assume they're not from the PO. 2030 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 2031 UserManager.DISALLOW_OUTGOING_CALLS, 2032 UserManager.DISALLOW_SMS); 2033 2034 for (UserInfo ui : mUserManager.getUsers()) { 2035 final int userId = ui.id; 2036 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 2037 if (VERBOSE_LOG) { 2038 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 2039 } 2040 migrated = true; 2041 2042 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 2043 2044 final Set<String> exceptionList = 2045 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 2046 2047 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 2048 exceptionList, /* isDeviceOwner =*/ false); 2049 2050 // Note if a secondary user has no PO but has a DA that disables camera, we 2051 // don't get here and won't push the camera user restriction to UserManager 2052 // here. That's okay because we'll push user restrictions anyway when a user 2053 // starts. But we still do it because we want to let user manager persist 2054 // upon migration. 2055 pushUserRestrictions(userId); 2056 2057 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 2058 } 2059 } 2060 if (VERBOSE_LOG && migrated) { 2061 Log.v(LOG_TAG, "User restrictions migrated."); 2062 } 2063 } 2064 2065 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 2066 Set<String> exceptionList, boolean isDeviceOwner) { 2067 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 2068 user.getIdentifier()); 2069 2070 final Bundle newBaseRestrictions = new Bundle(); 2071 final Bundle newOwnerRestrictions = new Bundle(); 2072 2073 for (String key : origRestrictions.keySet()) { 2074 if (!origRestrictions.getBoolean(key)) { 2075 continue; 2076 } 2077 final boolean canOwnerChange = isDeviceOwner 2078 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 2079 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 2080 2081 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 2082 newBaseRestrictions.putBoolean(key, true); 2083 } else { 2084 newOwnerRestrictions.putBoolean(key, true); 2085 } 2086 } 2087 2088 if (VERBOSE_LOG) { 2089 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 2090 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 2091 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 2092 } 2093 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 2094 newBaseRestrictions); 2095 2096 if (admin != null) { 2097 admin.ensureUserRestrictions().clear(); 2098 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 2099 } else { 2100 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 2101 } 2102 saveSettingsLocked(user.getIdentifier()); 2103 } 2104 2105 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 2106 final DevicePolicyData policy = getUserData(userId); 2107 final int n = policy.mAdminList.size(); 2108 ComponentName found = null; 2109 int nFound = 0; 2110 for (int i = 0; i < n; i++) { 2111 final ActiveAdmin admin = policy.mAdminList.get(i); 2112 if (packageName.equals(admin.info.getPackageName())) { 2113 // Found! 2114 if (nFound == 0) { 2115 found = admin.info.getComponent(); 2116 } 2117 nFound++; 2118 } 2119 } 2120 if (nFound > 1) { 2121 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 2122 } 2123 return found; 2124 } 2125 2126 /** 2127 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 2128 * reminders. Clears alarm if no expirations are configured. 2129 */ 2130 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 2131 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 2132 final long now = System.currentTimeMillis(); 2133 final long timeToExpire = expiration - now; 2134 final long alarmTime; 2135 if (expiration == 0) { 2136 // No expirations are currently configured: Cancel alarm. 2137 alarmTime = 0; 2138 } else if (timeToExpire <= 0) { 2139 // The password has already expired: Repeat every 24 hours. 2140 alarmTime = now + MS_PER_DAY; 2141 } else { 2142 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 2143 // the expiration time. 2144 long alarmInterval = timeToExpire % MS_PER_DAY; 2145 if (alarmInterval == 0) { 2146 alarmInterval = MS_PER_DAY; 2147 } 2148 alarmTime = now + alarmInterval; 2149 } 2150 2151 long token = mInjector.binderClearCallingIdentity(); 2152 try { 2153 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 2154 AlarmManager am = mInjector.getAlarmManager(); 2155 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 2156 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 2157 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 2158 UserHandle.of(affectedUserHandle)); 2159 am.cancel(pi); 2160 if (alarmTime != 0) { 2161 am.set(AlarmManager.RTC, alarmTime, pi); 2162 } 2163 } finally { 2164 mInjector.binderRestoreCallingIdentity(token); 2165 } 2166 } 2167 2168 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 2169 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 2170 if (admin != null 2171 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 2172 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 2173 return admin; 2174 } 2175 return null; 2176 } 2177 2178 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 2179 if (parent) { 2180 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 2181 } 2182 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2183 if (admin != null && parent) { 2184 admin = admin.getParentActiveAdmin(); 2185 } 2186 return admin; 2187 } 2188 2189 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 2190 throws SecurityException { 2191 final int callingUid = mInjector.binderGetCallingUid(); 2192 2193 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 2194 if (result != null) { 2195 return result; 2196 } 2197 2198 if (who != null) { 2199 final int userId = UserHandle.getUserId(callingUid); 2200 final DevicePolicyData policy = getUserData(userId); 2201 ActiveAdmin admin = policy.mAdminMap.get(who); 2202 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2203 throw new SecurityException("Admin " + admin.info.getComponent() 2204 + " does not own the device"); 2205 } 2206 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2207 throw new SecurityException("Admin " + admin.info.getComponent() 2208 + " does not own the profile"); 2209 } 2210 throw new SecurityException("Admin " + admin.info.getComponent() 2211 + " did not specify uses-policy for: " 2212 + admin.info.getTagForPolicy(reqPolicy)); 2213 } else { 2214 throw new SecurityException("No active admin owned by uid " 2215 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 2216 } 2217 } 2218 2219 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 2220 throws SecurityException { 2221 if (parent) { 2222 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 2223 "call APIs on the parent profile"); 2224 } 2225 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 2226 return parent ? admin.getParentActiveAdmin() : admin; 2227 } 2228 /** 2229 * Find the admin for the component and userId bit of the uid, then check 2230 * the admin's uid matches the uid. 2231 */ 2232 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 2233 final int userId = UserHandle.getUserId(uid); 2234 final DevicePolicyData policy = getUserData(userId); 2235 ActiveAdmin admin = policy.mAdminMap.get(who); 2236 if (admin == null) { 2237 throw new SecurityException("No active admin " + who); 2238 } 2239 if (admin.getUid() != uid) { 2240 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2241 } 2242 return admin; 2243 } 2244 2245 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 2246 int uid) { 2247 // Try to find an admin which can use reqPolicy 2248 final int userId = UserHandle.getUserId(uid); 2249 final DevicePolicyData policy = getUserData(userId); 2250 if (who != null) { 2251 ActiveAdmin admin = policy.mAdminMap.get(who); 2252 if (admin == null) { 2253 throw new SecurityException("No active admin " + who); 2254 } 2255 if (admin.getUid() != uid) { 2256 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2257 } 2258 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 2259 return admin; 2260 } 2261 } else { 2262 for (ActiveAdmin admin : policy.mAdminList) { 2263 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 2264 userId)) { 2265 return admin; 2266 } 2267 } 2268 } 2269 2270 return null; 2271 } 2272 2273 @VisibleForTesting 2274 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 2275 int userId) { 2276 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 2277 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 2278 2279 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2280 return ownsDevice; 2281 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2282 // DO always has the PO power. 2283 return ownsDevice || ownsProfile; 2284 } else { 2285 return admin.info.usesPolicy(reqPolicy); 2286 } 2287 } 2288 2289 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 2290 sendAdminCommandLocked(admin, action, null); 2291 } 2292 2293 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 2294 sendAdminCommandLocked(admin, action, null, result); 2295 } 2296 2297 /** 2298 * Send an update to one specific admin, get notified when that admin returns a result. 2299 */ 2300 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2301 BroadcastReceiver result) { 2302 Intent intent = new Intent(action); 2303 intent.setComponent(admin.info.getComponent()); 2304 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 2305 intent.putExtra("expiration", admin.passwordExpirationDate); 2306 } 2307 if (adminExtras != null) { 2308 intent.putExtras(adminExtras); 2309 } 2310 if (result != null) { 2311 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 2312 null, result, mHandler, Activity.RESULT_OK, null, null); 2313 } else { 2314 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 2315 } 2316 } 2317 2318 /** 2319 * Send an update to all admins of a user that enforce a specified policy. 2320 */ 2321 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle, Bundle adminExtras) { 2322 final DevicePolicyData policy = getUserData(userHandle); 2323 final int count = policy.mAdminList.size(); 2324 for (int i = 0; i < count; i++) { 2325 final ActiveAdmin admin = policy.mAdminList.get(i); 2326 if (admin.info.usesPolicy(reqPolicy)) { 2327 sendAdminCommandLocked(admin, action, adminExtras, null); 2328 } 2329 } 2330 } 2331 2332 /** 2333 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2334 * enforce a specified policy. 2335 */ 2336 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2337 int userHandle, Bundle adminExtras) { 2338 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 2339 for (int profileId : profileIds) { 2340 sendAdminCommandLocked(action, reqPolicy, profileId, adminExtras); 2341 } 2342 } 2343 2344 /** 2345 * Sends a broadcast to each profile that share the password unlock with the given user id. 2346 */ 2347 private void sendAdminCommandForLockscreenPoliciesLocked( 2348 String action, int reqPolicy, int userHandle) { 2349 final Bundle extras = new Bundle(); 2350 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 2351 if (isSeparateProfileChallengeEnabled(userHandle)) { 2352 sendAdminCommandLocked(action, reqPolicy, userHandle, extras); 2353 } else { 2354 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle, extras); 2355 } 2356 } 2357 2358 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2359 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2360 DevicePolicyData policy = getUserData(userHandle); 2361 if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) { 2362 policy.mRemovingAdmins.add(adminReceiver); 2363 sendAdminCommandLocked(admin, 2364 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2365 new BroadcastReceiver() { 2366 @Override 2367 public void onReceive(Context context, Intent intent) { 2368 removeAdminArtifacts(adminReceiver, userHandle); 2369 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2370 } 2371 }); 2372 } 2373 } 2374 2375 2376 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2377 boolean throwForMissiongPermission) { 2378 if (!mHasFeature) { 2379 return null; 2380 } 2381 enforceFullCrossUsersPermission(userHandle); 2382 ActivityInfo ai = null; 2383 try { 2384 ai = mIPackageManager.getReceiverInfo(adminName, 2385 PackageManager.GET_META_DATA | 2386 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS | 2387 PackageManager.MATCH_DIRECT_BOOT_AWARE | 2388 PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle); 2389 } catch (RemoteException e) { 2390 // shouldn't happen. 2391 } 2392 if (ai == null) { 2393 throw new IllegalArgumentException("Unknown admin: " + adminName); 2394 } 2395 2396 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2397 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2398 + permission.BIND_DEVICE_ADMIN; 2399 Slog.w(LOG_TAG, message); 2400 if (throwForMissiongPermission && 2401 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2402 throw new IllegalArgumentException(message); 2403 } 2404 } 2405 2406 try { 2407 return new DeviceAdminInfo(mContext, ai); 2408 } catch (XmlPullParserException | IOException e) { 2409 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2410 e); 2411 return null; 2412 } 2413 } 2414 2415 private JournaledFile makeJournaledFile(int userHandle) { 2416 final String base = userHandle == UserHandle.USER_SYSTEM 2417 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 2418 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2419 DEVICE_POLICIES_XML).getAbsolutePath(); 2420 if (VERBOSE_LOG) { 2421 Log.v(LOG_TAG, "Opening " + base); 2422 } 2423 return new JournaledFile(new File(base), new File(base + ".tmp")); 2424 } 2425 2426 private void saveSettingsLocked(int userHandle) { 2427 DevicePolicyData policy = getUserData(userHandle); 2428 JournaledFile journal = makeJournaledFile(userHandle); 2429 FileOutputStream stream = null; 2430 try { 2431 stream = new FileOutputStream(journal.chooseForWrite(), false); 2432 XmlSerializer out = new FastXmlSerializer(); 2433 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2434 out.startDocument(null, true); 2435 2436 out.startTag(null, "policies"); 2437 if (policy.mRestrictionsProvider != null) { 2438 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2439 policy.mRestrictionsProvider.flattenToString()); 2440 } 2441 if (policy.mUserSetupComplete) { 2442 out.attribute(null, ATTR_SETUP_COMPLETE, 2443 Boolean.toString(true)); 2444 } 2445 if (policy.mPaired) { 2446 out.attribute(null, ATTR_DEVICE_PAIRED, 2447 Boolean.toString(true)); 2448 } 2449 if (policy.mDeviceProvisioningConfigApplied) { 2450 out.attribute(null, ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED, 2451 Boolean.toString(true)); 2452 } 2453 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2454 out.attribute(null, ATTR_PROVISIONING_STATE, 2455 Integer.toString(policy.mUserProvisioningState)); 2456 } 2457 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2458 out.attribute(null, ATTR_PERMISSION_POLICY, 2459 Integer.toString(policy.mPermissionPolicy)); 2460 } 2461 2462 // Serialize delegations. 2463 for (int i = 0; i < policy.mDelegationMap.size(); ++i) { 2464 final String delegatePackage = policy.mDelegationMap.keyAt(i); 2465 final List<String> scopes = policy.mDelegationMap.valueAt(i); 2466 2467 // Every "delegation" tag serializes the information of one delegate-scope pair. 2468 for (String scope : scopes) { 2469 out.startTag(null, "delegation"); 2470 out.attribute(null, "delegatePackage", delegatePackage); 2471 out.attribute(null, "scope", scope); 2472 out.endTag(null, "delegation"); 2473 } 2474 } 2475 2476 final int N = policy.mAdminList.size(); 2477 for (int i=0; i<N; i++) { 2478 ActiveAdmin ap = policy.mAdminList.get(i); 2479 if (ap != null) { 2480 out.startTag(null, "admin"); 2481 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2482 ap.writeToXml(out); 2483 out.endTag(null, "admin"); 2484 } 2485 } 2486 2487 if (policy.mPasswordOwner >= 0) { 2488 out.startTag(null, "password-owner"); 2489 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2490 out.endTag(null, "password-owner"); 2491 } 2492 2493 if (policy.mFailedPasswordAttempts != 0) { 2494 out.startTag(null, "failed-password-attempts"); 2495 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2496 out.endTag(null, "failed-password-attempts"); 2497 } 2498 2499 // Don't save metrics for FBE devices 2500 final PasswordMetrics metrics = policy.mActivePasswordMetrics; 2501 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled() && !metrics.isDefault()) { 2502 out.startTag(null, "active-password"); 2503 out.attribute(null, "quality", Integer.toString(metrics.quality)); 2504 out.attribute(null, "length", Integer.toString(metrics.length)); 2505 out.attribute(null, "uppercase", Integer.toString(metrics.upperCase)); 2506 out.attribute(null, "lowercase", Integer.toString(metrics.lowerCase)); 2507 out.attribute(null, "letters", Integer.toString(metrics.letters)); 2508 out.attribute(null, "numeric", Integer.toString(metrics.numeric)); 2509 out.attribute(null, "symbols", Integer.toString(metrics.symbols)); 2510 out.attribute(null, "nonletter", Integer.toString(metrics.nonLetter)); 2511 out.endTag(null, "active-password"); 2512 } 2513 2514 for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) { 2515 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2516 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i)); 2517 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2518 } 2519 2520 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2521 String component = policy.mLockTaskPackages.get(i); 2522 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2523 out.attribute(null, "name", component); 2524 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2525 } 2526 2527 if (policy.mStatusBarDisabled) { 2528 out.startTag(null, TAG_STATUS_BAR); 2529 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2530 out.endTag(null, TAG_STATUS_BAR); 2531 } 2532 2533 if (policy.doNotAskCredentialsOnBoot) { 2534 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2535 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2536 } 2537 2538 for (String id : policy.mAffiliationIds) { 2539 out.startTag(null, TAG_AFFILIATION_ID); 2540 out.attribute(null, ATTR_ID, id); 2541 out.endTag(null, TAG_AFFILIATION_ID); 2542 } 2543 2544 if (policy.mLastSecurityLogRetrievalTime >= 0) { 2545 out.startTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2546 out.attribute(null, ATTR_VALUE, 2547 Long.toString(policy.mLastSecurityLogRetrievalTime)); 2548 out.endTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2549 } 2550 2551 if (policy.mLastBugReportRequestTime >= 0) { 2552 out.startTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2553 out.attribute(null, ATTR_VALUE, 2554 Long.toString(policy.mLastBugReportRequestTime)); 2555 out.endTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2556 } 2557 2558 if (policy.mLastNetworkLogsRetrievalTime >= 0) { 2559 out.startTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2560 out.attribute(null, ATTR_VALUE, 2561 Long.toString(policy.mLastNetworkLogsRetrievalTime)); 2562 out.endTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2563 } 2564 2565 if (policy.mAdminBroadcastPending) { 2566 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2567 out.attribute(null, ATTR_VALUE, 2568 Boolean.toString(policy.mAdminBroadcastPending)); 2569 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2570 } 2571 2572 if (policy.mInitBundle != null) { 2573 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 2574 policy.mInitBundle.saveToXml(out); 2575 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 2576 } 2577 2578 if (policy.mPasswordTokenHandle != 0) { 2579 out.startTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2580 out.attribute(null, ATTR_VALUE, 2581 Long.toString(policy.mPasswordTokenHandle)); 2582 out.endTag(null, TAG_PASSWORD_TOKEN_HANDLE); 2583 } 2584 2585 if (policy.mDefaultInputMethodSet) { 2586 out.startTag(null, TAG_DEFAULT_INPUT_METHOD_SET); 2587 out.endTag(null, TAG_DEFAULT_INPUT_METHOD_SET); 2588 } 2589 2590 out.endTag(null, "policies"); 2591 2592 out.endDocument(); 2593 stream.flush(); 2594 FileUtils.sync(stream); 2595 stream.close(); 2596 journal.commit(); 2597 sendChangedNotification(userHandle); 2598 } catch (XmlPullParserException | IOException e) { 2599 Slog.w(LOG_TAG, "failed writing file", e); 2600 try { 2601 if (stream != null) { 2602 stream.close(); 2603 } 2604 } catch (IOException ex) { 2605 // Ignore 2606 } 2607 journal.rollback(); 2608 } 2609 } 2610 2611 private void sendChangedNotification(int userHandle) { 2612 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 2613 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2614 long ident = mInjector.binderClearCallingIdentity(); 2615 try { 2616 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 2617 } finally { 2618 mInjector.binderRestoreCallingIdentity(ident); 2619 } 2620 } 2621 2622 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 2623 JournaledFile journal = makeJournaledFile(userHandle); 2624 FileInputStream stream = null; 2625 File file = journal.chooseForRead(); 2626 boolean needsRewrite = false; 2627 try { 2628 stream = new FileInputStream(file); 2629 XmlPullParser parser = Xml.newPullParser(); 2630 parser.setInput(stream, StandardCharsets.UTF_8.name()); 2631 2632 int type; 2633 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2634 && type != XmlPullParser.START_TAG) { 2635 } 2636 String tag = parser.getName(); 2637 if (!"policies".equals(tag)) { 2638 throw new XmlPullParserException( 2639 "Settings do not start with policies tag: found " + tag); 2640 } 2641 2642 // Extract the permission provider component name if available 2643 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 2644 if (permissionProvider != null) { 2645 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 2646 } 2647 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 2648 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 2649 policy.mUserSetupComplete = true; 2650 } 2651 String paired = parser.getAttributeValue(null, ATTR_DEVICE_PAIRED); 2652 if (paired != null && Boolean.toString(true).equals(paired)) { 2653 policy.mPaired = true; 2654 } 2655 String deviceProvisioningConfigApplied = parser.getAttributeValue(null, 2656 ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED); 2657 if (deviceProvisioningConfigApplied != null 2658 && Boolean.toString(true).equals(deviceProvisioningConfigApplied)) { 2659 policy.mDeviceProvisioningConfigApplied = true; 2660 } 2661 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 2662 if (!TextUtils.isEmpty(provisioningState)) { 2663 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 2664 } 2665 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 2666 if (!TextUtils.isEmpty(permissionPolicy)) { 2667 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 2668 } 2669 // Check for delegation compatibility with pre-O. 2670 // TODO(edmanp) remove in P. 2671 { 2672 final String certDelegate = parser.getAttributeValue(null, 2673 ATTR_DELEGATED_CERT_INSTALLER); 2674 if (certDelegate != null) { 2675 List<String> scopes = policy.mDelegationMap.get(certDelegate); 2676 if (scopes == null) { 2677 scopes = new ArrayList<>(); 2678 policy.mDelegationMap.put(certDelegate, scopes); 2679 } 2680 if (!scopes.contains(DELEGATION_CERT_INSTALL)) { 2681 scopes.add(DELEGATION_CERT_INSTALL); 2682 needsRewrite = true; 2683 } 2684 } 2685 final String appRestrictionsDelegate = parser.getAttributeValue(null, 2686 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 2687 if (appRestrictionsDelegate != null) { 2688 List<String> scopes = policy.mDelegationMap.get(appRestrictionsDelegate); 2689 if (scopes == null) { 2690 scopes = new ArrayList<>(); 2691 policy.mDelegationMap.put(appRestrictionsDelegate, scopes); 2692 } 2693 if (!scopes.contains(DELEGATION_APP_RESTRICTIONS)) { 2694 scopes.add(DELEGATION_APP_RESTRICTIONS); 2695 needsRewrite = true; 2696 } 2697 } 2698 } 2699 2700 type = parser.next(); 2701 int outerDepth = parser.getDepth(); 2702 policy.mLockTaskPackages.clear(); 2703 policy.mAdminList.clear(); 2704 policy.mAdminMap.clear(); 2705 policy.mAffiliationIds.clear(); 2706 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2707 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2708 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2709 continue; 2710 } 2711 tag = parser.getName(); 2712 if ("admin".equals(tag)) { 2713 String name = parser.getAttributeValue(null, "name"); 2714 try { 2715 DeviceAdminInfo dai = findAdmin( 2716 ComponentName.unflattenFromString(name), userHandle, 2717 /* throwForMissionPermission= */ false); 2718 if (VERBOSE_LOG 2719 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 2720 != userHandle)) { 2721 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 2722 + dai.getActivityInfo().applicationInfo.uid + " for user " 2723 + userHandle); 2724 } 2725 if (dai != null) { 2726 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 2727 ap.readFromXml(parser); 2728 policy.mAdminMap.put(ap.info.getComponent(), ap); 2729 } 2730 } catch (RuntimeException e) { 2731 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 2732 } 2733 } else if ("delegation".equals(tag)) { 2734 // Parse delegation info. 2735 final String delegatePackage = parser.getAttributeValue(null, 2736 "delegatePackage"); 2737 final String scope = parser.getAttributeValue(null, "scope"); 2738 2739 // Get a reference to the scopes list for the delegatePackage. 2740 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 2741 // Or make a new list if none was found. 2742 if (scopes == null) { 2743 scopes = new ArrayList<>(); 2744 policy.mDelegationMap.put(delegatePackage, scopes); 2745 } 2746 // Add the new scope to the list of delegatePackage if it's not already there. 2747 if (!scopes.contains(scope)) { 2748 scopes.add(scope); 2749 } 2750 } else if ("failed-password-attempts".equals(tag)) { 2751 policy.mFailedPasswordAttempts = Integer.parseInt( 2752 parser.getAttributeValue(null, "value")); 2753 } else if ("password-owner".equals(tag)) { 2754 policy.mPasswordOwner = Integer.parseInt( 2755 parser.getAttributeValue(null, "value")); 2756 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) { 2757 policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME)); 2758 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2759 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2760 } else if (TAG_STATUS_BAR.equals(tag)) { 2761 policy.mStatusBarDisabled = Boolean.parseBoolean( 2762 parser.getAttributeValue(null, ATTR_DISABLED)); 2763 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2764 policy.doNotAskCredentialsOnBoot = true; 2765 } else if (TAG_AFFILIATION_ID.equals(tag)) { 2766 policy.mAffiliationIds.add(parser.getAttributeValue(null, ATTR_ID)); 2767 } else if (TAG_LAST_SECURITY_LOG_RETRIEVAL.equals(tag)) { 2768 policy.mLastSecurityLogRetrievalTime = Long.parseLong( 2769 parser.getAttributeValue(null, ATTR_VALUE)); 2770 } else if (TAG_LAST_BUG_REPORT_REQUEST.equals(tag)) { 2771 policy.mLastBugReportRequestTime = Long.parseLong( 2772 parser.getAttributeValue(null, ATTR_VALUE)); 2773 } else if (TAG_LAST_NETWORK_LOG_RETRIEVAL.equals(tag)) { 2774 policy.mLastNetworkLogsRetrievalTime = Long.parseLong( 2775 parser.getAttributeValue(null, ATTR_VALUE)); 2776 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 2777 String pending = parser.getAttributeValue(null, ATTR_VALUE); 2778 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 2779 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 2780 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 2781 } else if ("active-password".equals(tag)) { 2782 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 2783 // Remove this from FBE devices 2784 needsRewrite = true; 2785 } else { 2786 final PasswordMetrics m = policy.mActivePasswordMetrics; 2787 m.quality = Integer.parseInt(parser.getAttributeValue(null, "quality")); 2788 m.length = Integer.parseInt(parser.getAttributeValue(null, "length")); 2789 m.upperCase = Integer.parseInt(parser.getAttributeValue(null, "uppercase")); 2790 m.lowerCase = Integer.parseInt(parser.getAttributeValue(null, "lowercase")); 2791 m.letters = Integer.parseInt(parser.getAttributeValue(null, "letters")); 2792 m.numeric = Integer.parseInt(parser.getAttributeValue(null, "numeric")); 2793 m.symbols = Integer.parseInt(parser.getAttributeValue(null, "symbols")); 2794 m.nonLetter = Integer.parseInt(parser.getAttributeValue(null, "nonletter")); 2795 } 2796 } else if (TAG_PASSWORD_TOKEN_HANDLE.equals(tag)) { 2797 policy.mPasswordTokenHandle = Long.parseLong( 2798 parser.getAttributeValue(null, ATTR_VALUE)); 2799 } else if (TAG_DEFAULT_INPUT_METHOD_SET.equals(tag)) { 2800 policy.mDefaultInputMethodSet = true; 2801 } else { 2802 Slog.w(LOG_TAG, "Unknown tag: " + tag); 2803 XmlUtils.skipCurrentTag(parser); 2804 } 2805 } 2806 } catch (FileNotFoundException e) { 2807 // Don't be noisy, this is normal if we haven't defined any policies. 2808 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 2809 | IndexOutOfBoundsException e) { 2810 Slog.w(LOG_TAG, "failed parsing " + file, e); 2811 } 2812 try { 2813 if (stream != null) { 2814 stream.close(); 2815 } 2816 } catch (IOException e) { 2817 // Ignore 2818 } 2819 2820 // Generate a list of admins from the admin map 2821 policy.mAdminList.addAll(policy.mAdminMap.values()); 2822 2823 // Might need to upgrade the file by rewriting it 2824 if (needsRewrite) { 2825 saveSettingsLocked(userHandle); 2826 } 2827 2828 validatePasswordOwnerLocked(policy); 2829 updateMaximumTimeToLockLocked(userHandle); 2830 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2831 if (policy.mStatusBarDisabled) { 2832 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2833 } 2834 } 2835 2836 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2837 long ident = mInjector.binderClearCallingIdentity(); 2838 try { 2839 mInjector.getIActivityManager() 2840 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2841 } catch (RemoteException e) { 2842 // Not gonna happen. 2843 } finally { 2844 mInjector.binderRestoreCallingIdentity(ident); 2845 } 2846 } 2847 2848 private void updateDeviceOwnerLocked() { 2849 long ident = mInjector.binderClearCallingIdentity(); 2850 try { 2851 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2852 // user id and also protect all other DAs too. 2853 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2854 if (deviceOwnerComponent != null) { 2855 mInjector.getIActivityManager() 2856 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2857 } 2858 } catch (RemoteException e) { 2859 // Not gonna happen. 2860 } finally { 2861 mInjector.binderRestoreCallingIdentity(ident); 2862 } 2863 } 2864 2865 static void validateQualityConstant(int quality) { 2866 switch (quality) { 2867 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2868 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2869 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2870 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2871 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2872 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2873 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2874 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2875 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 2876 return; 2877 } 2878 throw new IllegalArgumentException("Invalid quality constant: 0x" 2879 + Integer.toHexString(quality)); 2880 } 2881 2882 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2883 if (policy.mPasswordOwner >= 0) { 2884 boolean haveOwner = false; 2885 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2886 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2887 haveOwner = true; 2888 break; 2889 } 2890 } 2891 if (!haveOwner) { 2892 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2893 + " no longer active; disabling"); 2894 policy.mPasswordOwner = -1; 2895 } 2896 } 2897 } 2898 2899 @VisibleForTesting 2900 void systemReady(int phase) { 2901 if (!mHasFeature) { 2902 return; 2903 } 2904 switch (phase) { 2905 case SystemService.PHASE_LOCK_SETTINGS_READY: 2906 onLockSettingsReady(); 2907 break; 2908 case SystemService.PHASE_BOOT_COMPLETED: 2909 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2910 break; 2911 } 2912 } 2913 2914 private void onLockSettingsReady() { 2915 getUserData(UserHandle.USER_SYSTEM); 2916 loadOwners(); 2917 cleanUpOldUsers(); 2918 2919 onStartUser(UserHandle.USER_SYSTEM); 2920 2921 // Register an observer for watching for user setup complete and settings changes. 2922 mSetupContentObserver.register(); 2923 // Initialize the user setup state, to handle the upgrade case. 2924 updateUserSetupCompleteAndPaired(); 2925 2926 List<String> packageList; 2927 synchronized (this) { 2928 packageList = getKeepUninstalledPackagesLocked(); 2929 } 2930 if (packageList != null) { 2931 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 2932 } 2933 2934 synchronized (this) { 2935 // push the force-ephemeral-users policy to the user manager. 2936 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 2937 if (deviceOwner != null) { 2938 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 2939 } 2940 } 2941 } 2942 2943 private void ensureDeviceOwnerUserStarted() { 2944 final int userId; 2945 synchronized (this) { 2946 if (!mOwners.hasDeviceOwner()) { 2947 return; 2948 } 2949 userId = mOwners.getDeviceOwnerUserId(); 2950 } 2951 if (VERBOSE_LOG) { 2952 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2953 } 2954 if (userId != UserHandle.USER_SYSTEM) { 2955 try { 2956 mInjector.getIActivityManager().startUserInBackground(userId); 2957 2958 // STOPSHIP Prevent the DO user from being killed. 2959 2960 } catch (RemoteException e) { 2961 Slog.w(LOG_TAG, "Exception starting user", e); 2962 } 2963 } 2964 } 2965 2966 private void onStartUser(int userId) { 2967 updateScreenCaptureDisabledInWindowManager(userId, 2968 getScreenCaptureDisabled(null, userId)); 2969 pushUserRestrictions(userId); 2970 } 2971 2972 private void cleanUpOldUsers() { 2973 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2974 // before reboot 2975 Set<Integer> usersWithProfileOwners; 2976 Set<Integer> usersWithData; 2977 synchronized(this) { 2978 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2979 usersWithData = new ArraySet<>(); 2980 for (int i = 0; i < mUserData.size(); i++) { 2981 usersWithData.add(mUserData.keyAt(i)); 2982 } 2983 } 2984 List<UserInfo> allUsers = mUserManager.getUsers(); 2985 2986 Set<Integer> deletedUsers = new ArraySet<>(); 2987 deletedUsers.addAll(usersWithProfileOwners); 2988 deletedUsers.addAll(usersWithData); 2989 for (UserInfo userInfo : allUsers) { 2990 deletedUsers.remove(userInfo.id); 2991 } 2992 for (Integer userId : deletedUsers) { 2993 removeUserData(userId); 2994 } 2995 } 2996 2997 private void handlePasswordExpirationNotification(int userHandle) { 2998 final Bundle adminExtras = new Bundle(); 2999 adminExtras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 3000 3001 synchronized (this) { 3002 final long now = System.currentTimeMillis(); 3003 3004 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 3005 userHandle, /* parent */ false); 3006 final int N = admins.size(); 3007 for (int i = 0; i < N; i++) { 3008 ActiveAdmin admin = admins.get(i); 3009 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 3010 && admin.passwordExpirationTimeout > 0L 3011 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 3012 && admin.passwordExpirationDate > 0L) { 3013 sendAdminCommandLocked(admin, 3014 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING, adminExtras, null); 3015 } 3016 } 3017 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 3018 } 3019 } 3020 3021 /** 3022 * Remove deleted CA certificates from the "approved" list for a particular user, counting 3023 * the number still remaining to approve. 3024 * 3025 * @param userHandle user to check for. This must be a real user and not, for example, 3026 * {@link UserHandle#ALL}. 3027 * @param installedCertificates the full set of certificate authorities currently installed for 3028 * {@param userHandle}. After calling this function, {@code mAcceptedCaCertificates} will 3029 * correspond to some subset of this. 3030 * 3031 * @return number of certificates yet to be approved by {@param userHandle}. 3032 */ 3033 protected synchronized int retainAcceptedCertificates(final UserHandle userHandle, 3034 final @NonNull Collection<String> installedCertificates) { 3035 enforceManageUsers(); 3036 3037 if (!mHasFeature) { 3038 return installedCertificates.size(); 3039 } else { 3040 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 3041 3042 // Remove deleted certificates. Flush xml if necessary. 3043 if (policy.mAcceptedCaCertificates.retainAll(installedCertificates)) { 3044 saveSettingsLocked(userHandle.getIdentifier()); 3045 } 3046 3047 // Trim approved certificates from the count. 3048 return installedCertificates.size() - policy.mAcceptedCaCertificates.size(); 3049 } 3050 } 3051 3052 /** 3053 * @param adminReceiver The admin to add 3054 * @param refreshing true = update an active admin, no error 3055 */ 3056 @Override 3057 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 3058 if (!mHasFeature) { 3059 return; 3060 } 3061 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 3062 } 3063 3064 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 3065 Bundle onEnableData) { 3066 mContext.enforceCallingOrSelfPermission( 3067 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3068 enforceFullCrossUsersPermission(userHandle); 3069 3070 DevicePolicyData policy = getUserData(userHandle); 3071 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 3072 /* throwForMissionPermission= */ true); 3073 if (info == null) { 3074 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 3075 } 3076 if (!info.getActivityInfo().applicationInfo.isInternal()) { 3077 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 3078 + adminReceiver); 3079 } 3080 synchronized (this) { 3081 long ident = mInjector.binderClearCallingIdentity(); 3082 try { 3083 final ActiveAdmin existingAdmin 3084 = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3085 if (!refreshing && existingAdmin != null) { 3086 throw new IllegalArgumentException("Admin is already added"); 3087 } 3088 if (policy.mRemovingAdmins.contains(adminReceiver)) { 3089 throw new IllegalArgumentException( 3090 "Trying to set an admin which is being removed"); 3091 } 3092 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 3093 newAdmin.testOnlyAdmin = 3094 (existingAdmin != null) ? existingAdmin.testOnlyAdmin 3095 : isPackageTestOnly(adminReceiver.getPackageName(), userHandle); 3096 policy.mAdminMap.put(adminReceiver, newAdmin); 3097 int replaceIndex = -1; 3098 final int N = policy.mAdminList.size(); 3099 for (int i=0; i < N; i++) { 3100 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 3101 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 3102 replaceIndex = i; 3103 break; 3104 } 3105 } 3106 if (replaceIndex == -1) { 3107 policy.mAdminList.add(newAdmin); 3108 enableIfNecessary(info.getPackageName(), userHandle); 3109 } else { 3110 policy.mAdminList.set(replaceIndex, newAdmin); 3111 } 3112 saveSettingsLocked(userHandle); 3113 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 3114 onEnableData, null); 3115 } finally { 3116 mInjector.binderRestoreCallingIdentity(ident); 3117 } 3118 } 3119 } 3120 3121 @Override 3122 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 3123 if (!mHasFeature) { 3124 return false; 3125 } 3126 enforceFullCrossUsersPermission(userHandle); 3127 synchronized (this) { 3128 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 3129 } 3130 } 3131 3132 @Override 3133 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 3134 if (!mHasFeature) { 3135 return false; 3136 } 3137 enforceFullCrossUsersPermission(userHandle); 3138 synchronized (this) { 3139 DevicePolicyData policyData = getUserData(userHandle); 3140 return policyData.mRemovingAdmins.contains(adminReceiver); 3141 } 3142 } 3143 3144 @Override 3145 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 3146 if (!mHasFeature) { 3147 return false; 3148 } 3149 enforceFullCrossUsersPermission(userHandle); 3150 synchronized (this) { 3151 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3152 if (administrator == null) { 3153 throw new SecurityException("No active admin " + adminReceiver); 3154 } 3155 return administrator.info.usesPolicy(policyId); 3156 } 3157 } 3158 3159 @Override 3160 @SuppressWarnings("unchecked") 3161 public List<ComponentName> getActiveAdmins(int userHandle) { 3162 if (!mHasFeature) { 3163 return Collections.EMPTY_LIST; 3164 } 3165 3166 enforceFullCrossUsersPermission(userHandle); 3167 synchronized (this) { 3168 DevicePolicyData policy = getUserData(userHandle); 3169 final int N = policy.mAdminList.size(); 3170 if (N <= 0) { 3171 return null; 3172 } 3173 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 3174 for (int i=0; i<N; i++) { 3175 res.add(policy.mAdminList.get(i).info.getComponent()); 3176 } 3177 return res; 3178 } 3179 } 3180 3181 @Override 3182 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 3183 if (!mHasFeature) { 3184 return false; 3185 } 3186 enforceFullCrossUsersPermission(userHandle); 3187 synchronized (this) { 3188 DevicePolicyData policy = getUserData(userHandle); 3189 final int N = policy.mAdminList.size(); 3190 for (int i=0; i<N; i++) { 3191 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 3192 return true; 3193 } 3194 } 3195 return false; 3196 } 3197 } 3198 3199 public void forceRemoveActiveAdmin(ComponentName adminReceiver, int userHandle) { 3200 if (!mHasFeature) { 3201 return; 3202 } 3203 Preconditions.checkNotNull(adminReceiver, "ComponentName is null"); 3204 enforceShell("forceRemoveActiveAdmin"); 3205 long ident = mInjector.binderClearCallingIdentity(); 3206 try { 3207 synchronized (this) { 3208 if (!isAdminTestOnlyLocked(adminReceiver, userHandle)) { 3209 throw new SecurityException("Attempt to remove non-test admin " 3210 + adminReceiver + " " + userHandle); 3211 } 3212 3213 // If admin is a device or profile owner tidy that up first. 3214 if (isDeviceOwner(adminReceiver, userHandle)) { 3215 clearDeviceOwnerLocked(getDeviceOwnerAdminLocked(), userHandle); 3216 } 3217 if (isProfileOwner(adminReceiver, userHandle)) { 3218 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, 3219 userHandle, /* parent */ false); 3220 clearProfileOwnerLocked(admin, userHandle); 3221 } 3222 } 3223 // Remove the admin skipping sending the broadcast. 3224 removeAdminArtifacts(adminReceiver, userHandle); 3225 Slog.i(LOG_TAG, "Admin " + adminReceiver + " removed from user " + userHandle); 3226 } finally { 3227 mInjector.binderRestoreCallingIdentity(ident); 3228 } 3229 } 3230 3231 private void clearDeviceOwnerUserRestrictionLocked(UserHandle userHandle) { 3232 // ManagedProvisioning/DPC sets DISALLOW_ADD_USER. Clear to recover to the original state 3233 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_USER, userHandle)) { 3234 mUserManager.setUserRestriction(UserManager.DISALLOW_ADD_USER, false, userHandle); 3235 } 3236 } 3237 3238 /** 3239 * Return if a given package has testOnly="true", in which case we'll relax certain rules 3240 * for CTS. 3241 * 3242 * DO NOT use this method except in {@link #setActiveAdmin}. Use {@link #isAdminTestOnlyLocked} 3243 * to check wehter an active admin is test-only or not. 3244 * 3245 * The system allows this flag to be changed when an app is updated, which is not good 3246 * for us. So we persist the flag in {@link ActiveAdmin} when an admin is first installed, 3247 * and used the persisted version in actual checks. (See b/31382361 and b/28928996) 3248 */ 3249 private boolean isPackageTestOnly(String packageName, int userHandle) { 3250 final ApplicationInfo ai; 3251 try { 3252 ai = mIPackageManager.getApplicationInfo(packageName, 3253 (PackageManager.MATCH_DIRECT_BOOT_AWARE 3254 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE), userHandle); 3255 } catch (RemoteException e) { 3256 throw new IllegalStateException(e); 3257 } 3258 if (ai == null) { 3259 throw new IllegalStateException("Couldn't find package: " 3260 + packageName + " on user " + userHandle); 3261 } 3262 return (ai.flags & ApplicationInfo.FLAG_TEST_ONLY) != 0; 3263 } 3264 3265 /** 3266 * See {@link #isPackageTestOnly}. 3267 */ 3268 private boolean isAdminTestOnlyLocked(ComponentName who, int userHandle) { 3269 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3270 return (admin != null) && admin.testOnlyAdmin; 3271 } 3272 3273 private void enforceShell(String method) { 3274 final int callingUid = Binder.getCallingUid(); 3275 if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) { 3276 throw new SecurityException("Non-shell user attempted to call " + method); 3277 } 3278 } 3279 3280 @Override 3281 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 3282 if (!mHasFeature) { 3283 return; 3284 } 3285 enforceFullCrossUsersPermission(userHandle); 3286 enforceUserUnlocked(userHandle); 3287 synchronized (this) { 3288 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3289 if (admin == null) { 3290 return; 3291 } 3292 // Active device/profile owners must remain active admins. 3293 if (isDeviceOwner(adminReceiver, userHandle) 3294 || isProfileOwner(adminReceiver, userHandle)) { 3295 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 3296 adminReceiver); 3297 return; 3298 } 3299 if (admin.getUid() != mInjector.binderGetCallingUid()) { 3300 mContext.enforceCallingOrSelfPermission( 3301 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3302 } 3303 long ident = mInjector.binderClearCallingIdentity(); 3304 try { 3305 removeActiveAdminLocked(adminReceiver, userHandle); 3306 } finally { 3307 mInjector.binderRestoreCallingIdentity(ident); 3308 } 3309 } 3310 } 3311 3312 @Override 3313 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 3314 ComponentName profileOwner = getProfileOwner(userHandle); 3315 // Profile challenge is supported on N or newer release. 3316 return profileOwner != null && 3317 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 3318 } 3319 3320 @Override 3321 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 3322 if (!mHasFeature) { 3323 return; 3324 } 3325 Preconditions.checkNotNull(who, "ComponentName is null"); 3326 validateQualityConstant(quality); 3327 3328 synchronized (this) { 3329 ActiveAdmin ap = getActiveAdminForCallerLocked( 3330 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3331 if (ap.minimumPasswordMetrics.quality != quality) { 3332 ap.minimumPasswordMetrics.quality = quality; 3333 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3334 } 3335 } 3336 } 3337 3338 @Override 3339 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 3340 if (!mHasFeature) { 3341 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3342 } 3343 enforceFullCrossUsersPermission(userHandle); 3344 synchronized (this) { 3345 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3346 3347 if (who != null) { 3348 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3349 return admin != null ? admin.minimumPasswordMetrics.quality : mode; 3350 } 3351 3352 // Return the strictest policy across all participating admins. 3353 List<ActiveAdmin> admins = 3354 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3355 final int N = admins.size(); 3356 for (int i = 0; i < N; i++) { 3357 ActiveAdmin admin = admins.get(i); 3358 if (mode < admin.minimumPasswordMetrics.quality) { 3359 mode = admin.minimumPasswordMetrics.quality; 3360 } 3361 } 3362 return mode; 3363 } 3364 } 3365 3366 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 3367 int userHandle, boolean parent) { 3368 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 3369 // If this user has a separate challenge, only return its restrictions. 3370 return getUserDataUnchecked(userHandle).mAdminList; 3371 } else { 3372 // Return all admins for this user and the profiles that are visible from this 3373 // user that do not use a separate work challenge. 3374 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 3375 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3376 DevicePolicyData policy = getUserData(userInfo.id); 3377 if (!userInfo.isManagedProfile()) { 3378 admins.addAll(policy.mAdminList); 3379 } else { 3380 // For managed profiles, we always include the policies set on the parent 3381 // profile. Additionally, we include the ones set on the managed profile 3382 // if no separate challenge is in place. 3383 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 3384 final int N = policy.mAdminList.size(); 3385 for (int i = 0; i < N; i++) { 3386 ActiveAdmin admin = policy.mAdminList.get(i); 3387 if (admin.hasParentActiveAdmin()) { 3388 admins.add(admin.getParentActiveAdmin()); 3389 } 3390 if (!hasSeparateChallenge) { 3391 admins.add(admin); 3392 } 3393 } 3394 } 3395 } 3396 return admins; 3397 } 3398 } 3399 3400 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 3401 long ident = mInjector.binderClearCallingIdentity(); 3402 try { 3403 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 3404 } finally { 3405 mInjector.binderRestoreCallingIdentity(ident); 3406 } 3407 } 3408 3409 @Override 3410 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 3411 if (!mHasFeature) { 3412 return; 3413 } 3414 Preconditions.checkNotNull(who, "ComponentName is null"); 3415 synchronized (this) { 3416 ActiveAdmin ap = getActiveAdminForCallerLocked( 3417 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3418 if (ap.minimumPasswordMetrics.length != length) { 3419 ap.minimumPasswordMetrics.length = length; 3420 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3421 } 3422 } 3423 } 3424 3425 @Override 3426 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 3427 if (!mHasFeature) { 3428 return 0; 3429 } 3430 enforceFullCrossUsersPermission(userHandle); 3431 synchronized (this) { 3432 int length = 0; 3433 3434 if (who != null) { 3435 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3436 return admin != null ? admin.minimumPasswordMetrics.length : length; 3437 } 3438 3439 // Return the strictest policy across all participating admins. 3440 List<ActiveAdmin> admins = 3441 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3442 final int N = admins.size(); 3443 for (int i = 0; i < N; i++) { 3444 ActiveAdmin admin = admins.get(i); 3445 if (length < admin.minimumPasswordMetrics.length) { 3446 length = admin.minimumPasswordMetrics.length; 3447 } 3448 } 3449 return length; 3450 } 3451 } 3452 3453 @Override 3454 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 3455 if (!mHasFeature) { 3456 return; 3457 } 3458 Preconditions.checkNotNull(who, "ComponentName is null"); 3459 synchronized (this) { 3460 ActiveAdmin ap = getActiveAdminForCallerLocked( 3461 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3462 if (ap.passwordHistoryLength != length) { 3463 ap.passwordHistoryLength = length; 3464 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3465 } 3466 } 3467 } 3468 3469 @Override 3470 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 3471 if (!mHasFeature) { 3472 return 0; 3473 } 3474 enforceFullCrossUsersPermission(userHandle); 3475 synchronized (this) { 3476 int length = 0; 3477 3478 if (who != null) { 3479 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3480 return admin != null ? admin.passwordHistoryLength : length; 3481 } 3482 3483 // Return the strictest policy across all participating admins. 3484 List<ActiveAdmin> admins = 3485 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3486 final int N = admins.size(); 3487 for (int i = 0; i < N; i++) { 3488 ActiveAdmin admin = admins.get(i); 3489 if (length < admin.passwordHistoryLength) { 3490 length = admin.passwordHistoryLength; 3491 } 3492 } 3493 3494 return length; 3495 } 3496 } 3497 3498 @Override 3499 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 3500 if (!mHasFeature) { 3501 return; 3502 } 3503 Preconditions.checkNotNull(who, "ComponentName is null"); 3504 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 3505 final int userHandle = mInjector.userHandleGetCallingUserId(); 3506 synchronized (this) { 3507 ActiveAdmin ap = getActiveAdminForCallerLocked( 3508 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 3509 // Calling this API automatically bumps the expiration date 3510 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3511 ap.passwordExpirationDate = expiration; 3512 ap.passwordExpirationTimeout = timeout; 3513 if (timeout > 0L) { 3514 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 3515 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 3516 .format(new Date(expiration))); 3517 } 3518 saveSettingsLocked(userHandle); 3519 3520 // in case this is the first one, set the alarm on the appropriate user. 3521 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 3522 } 3523 } 3524 3525 /** 3526 * Return a single admin's expiration cycle time, or the min of all cycle times. 3527 * Returns 0 if not configured. 3528 */ 3529 @Override 3530 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 3531 if (!mHasFeature) { 3532 return 0L; 3533 } 3534 enforceFullCrossUsersPermission(userHandle); 3535 synchronized (this) { 3536 long timeout = 0L; 3537 3538 if (who != null) { 3539 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3540 return admin != null ? admin.passwordExpirationTimeout : timeout; 3541 } 3542 3543 // Return the strictest policy across all participating admins. 3544 List<ActiveAdmin> admins = 3545 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3546 final int N = admins.size(); 3547 for (int i = 0; i < N; i++) { 3548 ActiveAdmin admin = admins.get(i); 3549 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 3550 && timeout > admin.passwordExpirationTimeout)) { 3551 timeout = admin.passwordExpirationTimeout; 3552 } 3553 } 3554 return timeout; 3555 } 3556 } 3557 3558 @Override 3559 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3560 final int userId = UserHandle.getCallingUserId(); 3561 List<String> changedProviders = null; 3562 3563 synchronized (this) { 3564 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3565 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3566 if (activeAdmin.crossProfileWidgetProviders == null) { 3567 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 3568 } 3569 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3570 if (!providers.contains(packageName)) { 3571 providers.add(packageName); 3572 changedProviders = new ArrayList<>(providers); 3573 saveSettingsLocked(userId); 3574 } 3575 } 3576 3577 if (changedProviders != null) { 3578 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3579 return true; 3580 } 3581 3582 return false; 3583 } 3584 3585 @Override 3586 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3587 final int userId = UserHandle.getCallingUserId(); 3588 List<String> changedProviders = null; 3589 3590 synchronized (this) { 3591 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3592 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3593 if (activeAdmin.crossProfileWidgetProviders == null 3594 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3595 return false; 3596 } 3597 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3598 if (providers.remove(packageName)) { 3599 changedProviders = new ArrayList<>(providers); 3600 saveSettingsLocked(userId); 3601 } 3602 } 3603 3604 if (changedProviders != null) { 3605 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3606 return true; 3607 } 3608 3609 return false; 3610 } 3611 3612 @Override 3613 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 3614 synchronized (this) { 3615 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3616 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3617 if (activeAdmin.crossProfileWidgetProviders == null 3618 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3619 return null; 3620 } 3621 if (mInjector.binderIsCallingUidMyUid()) { 3622 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 3623 } else { 3624 return activeAdmin.crossProfileWidgetProviders; 3625 } 3626 } 3627 } 3628 3629 /** 3630 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 3631 * Returns 0 if not configured. 3632 */ 3633 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 3634 long timeout = 0L; 3635 3636 if (who != null) { 3637 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3638 return admin != null ? admin.passwordExpirationDate : timeout; 3639 } 3640 3641 // Return the strictest policy across all participating admins. 3642 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3643 final int N = admins.size(); 3644 for (int i = 0; i < N; i++) { 3645 ActiveAdmin admin = admins.get(i); 3646 if (timeout == 0L || (admin.passwordExpirationDate != 0 3647 && timeout > admin.passwordExpirationDate)) { 3648 timeout = admin.passwordExpirationDate; 3649 } 3650 } 3651 return timeout; 3652 } 3653 3654 @Override 3655 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 3656 if (!mHasFeature) { 3657 return 0L; 3658 } 3659 enforceFullCrossUsersPermission(userHandle); 3660 synchronized (this) { 3661 return getPasswordExpirationLocked(who, userHandle, parent); 3662 } 3663 } 3664 3665 @Override 3666 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 3667 if (!mHasFeature) { 3668 return; 3669 } 3670 Preconditions.checkNotNull(who, "ComponentName is null"); 3671 synchronized (this) { 3672 ActiveAdmin ap = getActiveAdminForCallerLocked( 3673 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3674 if (ap.minimumPasswordMetrics.upperCase != length) { 3675 ap.minimumPasswordMetrics.upperCase = length; 3676 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3677 } 3678 } 3679 } 3680 3681 @Override 3682 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 3683 if (!mHasFeature) { 3684 return 0; 3685 } 3686 enforceFullCrossUsersPermission(userHandle); 3687 synchronized (this) { 3688 int length = 0; 3689 3690 if (who != null) { 3691 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3692 return admin != null ? admin.minimumPasswordMetrics.upperCase : length; 3693 } 3694 3695 // Return the strictest policy across all participating admins. 3696 List<ActiveAdmin> admins = 3697 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3698 final int N = admins.size(); 3699 for (int i = 0; i < N; i++) { 3700 ActiveAdmin admin = admins.get(i); 3701 if (length < admin.minimumPasswordMetrics.upperCase) { 3702 length = admin.minimumPasswordMetrics.upperCase; 3703 } 3704 } 3705 return length; 3706 } 3707 } 3708 3709 @Override 3710 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 3711 Preconditions.checkNotNull(who, "ComponentName is null"); 3712 synchronized (this) { 3713 ActiveAdmin ap = getActiveAdminForCallerLocked( 3714 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3715 if (ap.minimumPasswordMetrics.lowerCase != length) { 3716 ap.minimumPasswordMetrics.lowerCase = length; 3717 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3718 } 3719 } 3720 } 3721 3722 @Override 3723 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 3724 if (!mHasFeature) { 3725 return 0; 3726 } 3727 enforceFullCrossUsersPermission(userHandle); 3728 synchronized (this) { 3729 int length = 0; 3730 3731 if (who != null) { 3732 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3733 return admin != null ? admin.minimumPasswordMetrics.lowerCase : length; 3734 } 3735 3736 // Return the strictest policy across all participating admins. 3737 List<ActiveAdmin> admins = 3738 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3739 final int N = admins.size(); 3740 for (int i = 0; i < N; i++) { 3741 ActiveAdmin admin = admins.get(i); 3742 if (length < admin.minimumPasswordMetrics.lowerCase) { 3743 length = admin.minimumPasswordMetrics.lowerCase; 3744 } 3745 } 3746 return length; 3747 } 3748 } 3749 3750 @Override 3751 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 3752 if (!mHasFeature) { 3753 return; 3754 } 3755 Preconditions.checkNotNull(who, "ComponentName is null"); 3756 synchronized (this) { 3757 ActiveAdmin ap = getActiveAdminForCallerLocked( 3758 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3759 if (ap.minimumPasswordMetrics.letters != length) { 3760 ap.minimumPasswordMetrics.letters = length; 3761 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3762 } 3763 } 3764 } 3765 3766 @Override 3767 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 3768 if (!mHasFeature) { 3769 return 0; 3770 } 3771 enforceFullCrossUsersPermission(userHandle); 3772 synchronized (this) { 3773 int length = 0; 3774 3775 if (who != null) { 3776 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3777 return admin != null ? admin.minimumPasswordMetrics.letters : length; 3778 } 3779 3780 // Return the strictest policy across all participating admins. 3781 List<ActiveAdmin> admins = 3782 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3783 final int N = admins.size(); 3784 for (int i = 0; i < N; i++) { 3785 ActiveAdmin admin = admins.get(i); 3786 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3787 continue; 3788 } 3789 if (length < admin.minimumPasswordMetrics.letters) { 3790 length = admin.minimumPasswordMetrics.letters; 3791 } 3792 } 3793 return length; 3794 } 3795 } 3796 3797 @Override 3798 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 3799 if (!mHasFeature) { 3800 return; 3801 } 3802 Preconditions.checkNotNull(who, "ComponentName is null"); 3803 synchronized (this) { 3804 ActiveAdmin ap = getActiveAdminForCallerLocked( 3805 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3806 if (ap.minimumPasswordMetrics.numeric != length) { 3807 ap.minimumPasswordMetrics.numeric = length; 3808 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3809 } 3810 } 3811 } 3812 3813 @Override 3814 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 3815 if (!mHasFeature) { 3816 return 0; 3817 } 3818 enforceFullCrossUsersPermission(userHandle); 3819 synchronized (this) { 3820 int length = 0; 3821 3822 if (who != null) { 3823 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3824 return admin != null ? admin.minimumPasswordMetrics.numeric : length; 3825 } 3826 3827 // Return the strictest policy across all participating admins. 3828 List<ActiveAdmin> admins = 3829 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3830 final int N = admins.size(); 3831 for (int i = 0; i < N; i++) { 3832 ActiveAdmin admin = admins.get(i); 3833 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3834 continue; 3835 } 3836 if (length < admin.minimumPasswordMetrics.numeric) { 3837 length = admin.minimumPasswordMetrics.numeric; 3838 } 3839 } 3840 return length; 3841 } 3842 } 3843 3844 @Override 3845 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 3846 if (!mHasFeature) { 3847 return; 3848 } 3849 Preconditions.checkNotNull(who, "ComponentName is null"); 3850 synchronized (this) { 3851 ActiveAdmin ap = getActiveAdminForCallerLocked( 3852 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3853 if (ap.minimumPasswordMetrics.symbols != length) { 3854 ap.minimumPasswordMetrics.symbols = length; 3855 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3856 } 3857 } 3858 } 3859 3860 @Override 3861 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 3862 if (!mHasFeature) { 3863 return 0; 3864 } 3865 enforceFullCrossUsersPermission(userHandle); 3866 synchronized (this) { 3867 int length = 0; 3868 3869 if (who != null) { 3870 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3871 return admin != null ? admin.minimumPasswordMetrics.symbols : length; 3872 } 3873 3874 // Return the strictest policy across all participating admins. 3875 List<ActiveAdmin> admins = 3876 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3877 final int N = admins.size(); 3878 for (int i = 0; i < N; i++) { 3879 ActiveAdmin admin = admins.get(i); 3880 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3881 continue; 3882 } 3883 if (length < admin.minimumPasswordMetrics.symbols) { 3884 length = admin.minimumPasswordMetrics.symbols; 3885 } 3886 } 3887 return length; 3888 } 3889 } 3890 3891 @Override 3892 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 3893 if (!mHasFeature) { 3894 return; 3895 } 3896 Preconditions.checkNotNull(who, "ComponentName is null"); 3897 synchronized (this) { 3898 ActiveAdmin ap = getActiveAdminForCallerLocked( 3899 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3900 if (ap.minimumPasswordMetrics.nonLetter != length) { 3901 ap.minimumPasswordMetrics.nonLetter = length; 3902 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3903 } 3904 } 3905 } 3906 3907 @Override 3908 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 3909 if (!mHasFeature) { 3910 return 0; 3911 } 3912 enforceFullCrossUsersPermission(userHandle); 3913 synchronized (this) { 3914 int length = 0; 3915 3916 if (who != null) { 3917 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3918 return admin != null ? admin.minimumPasswordMetrics.nonLetter : length; 3919 } 3920 3921 // Return the strictest policy across all participating admins. 3922 List<ActiveAdmin> admins = 3923 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3924 final int N = admins.size(); 3925 for (int i = 0; i < N; i++) { 3926 ActiveAdmin admin = admins.get(i); 3927 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3928 continue; 3929 } 3930 if (length < admin.minimumPasswordMetrics.nonLetter) { 3931 length = admin.minimumPasswordMetrics.nonLetter; 3932 } 3933 } 3934 return length; 3935 } 3936 } 3937 3938 @Override 3939 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 3940 if (!mHasFeature) { 3941 return true; 3942 } 3943 enforceFullCrossUsersPermission(userHandle); 3944 3945 synchronized (this) { 3946 // This API can only be called by an active device admin, 3947 // so try to retrieve it to check that the caller is one. 3948 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3949 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3950 return isActivePasswordSufficientForUserLocked(policy, userHandle, parent); 3951 } 3952 } 3953 3954 @Override 3955 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 3956 if (!mHasFeature) { 3957 return true; 3958 } 3959 enforceFullCrossUsersPermission(userHandle); 3960 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 3961 3962 synchronized (this) { 3963 int targetUser = getProfileParentId(userHandle); 3964 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false)); 3965 return isActivePasswordSufficientForUserLocked(policy, targetUser, false); 3966 } 3967 } 3968 3969 private boolean isActivePasswordSufficientForUserLocked( 3970 DevicePolicyData policy, int userHandle, boolean parent) { 3971 enforceUserUnlocked(userHandle, parent); 3972 3973 final int requiredPasswordQuality = getPasswordQuality(null, userHandle, parent); 3974 if (policy.mActivePasswordMetrics.quality < requiredPasswordQuality) { 3975 return false; 3976 } 3977 if (requiredPasswordQuality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC 3978 && policy.mActivePasswordMetrics.length < getPasswordMinimumLength( 3979 null, userHandle, parent)) { 3980 return false; 3981 } 3982 if (requiredPasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3983 return true; 3984 } 3985 return policy.mActivePasswordMetrics.upperCase >= getPasswordMinimumUpperCase( 3986 null, userHandle, parent) 3987 && policy.mActivePasswordMetrics.lowerCase >= getPasswordMinimumLowerCase( 3988 null, userHandle, parent) 3989 && policy.mActivePasswordMetrics.letters >= getPasswordMinimumLetters( 3990 null, userHandle, parent) 3991 && policy.mActivePasswordMetrics.numeric >= getPasswordMinimumNumeric( 3992 null, userHandle, parent) 3993 && policy.mActivePasswordMetrics.symbols >= getPasswordMinimumSymbols( 3994 null, userHandle, parent) 3995 && policy.mActivePasswordMetrics.nonLetter >= getPasswordMinimumNonLetter( 3996 null, userHandle, parent); 3997 } 3998 3999 @Override 4000 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 4001 enforceFullCrossUsersPermission(userHandle); 4002 synchronized (this) { 4003 if (!isCallerWithSystemUid()) { 4004 // This API can only be called by an active device admin, 4005 // so try to retrieve it to check that the caller is one. 4006 getActiveAdminForCallerLocked( 4007 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4008 } 4009 4010 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 4011 4012 return policy.mFailedPasswordAttempts; 4013 } 4014 } 4015 4016 @Override 4017 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 4018 if (!mHasFeature) { 4019 return; 4020 } 4021 Preconditions.checkNotNull(who, "ComponentName is null"); 4022 synchronized (this) { 4023 // This API can only be called by an active device admin, 4024 // so try to retrieve it to check that the caller is one. 4025 getActiveAdminForCallerLocked( 4026 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 4027 ActiveAdmin ap = getActiveAdminForCallerLocked( 4028 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4029 if (ap.maximumFailedPasswordsForWipe != num) { 4030 ap.maximumFailedPasswordsForWipe = num; 4031 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4032 } 4033 } 4034 } 4035 4036 @Override 4037 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 4038 if (!mHasFeature) { 4039 return 0; 4040 } 4041 enforceFullCrossUsersPermission(userHandle); 4042 synchronized (this) { 4043 ActiveAdmin admin = (who != null) 4044 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 4045 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 4046 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 4047 } 4048 } 4049 4050 @Override 4051 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 4052 if (!mHasFeature) { 4053 return UserHandle.USER_NULL; 4054 } 4055 enforceFullCrossUsersPermission(userHandle); 4056 synchronized (this) { 4057 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4058 userHandle, parent); 4059 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 4060 } 4061 } 4062 4063 /** 4064 * Returns the admin with the strictest policy on maximum failed passwords for: 4065 * <ul> 4066 * <li>this user if it has a separate profile challenge, or 4067 * <li>this user and all profiles that don't have their own challenge otherwise. 4068 * </ul> 4069 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 4070 * the primary profile. 4071 * Returns {@code null} if no participating admin has that policy set. 4072 */ 4073 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 4074 int userHandle, boolean parent) { 4075 int count = 0; 4076 ActiveAdmin strictestAdmin = null; 4077 4078 // Return the strictest policy across all participating admins. 4079 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4080 final int N = admins.size(); 4081 for (int i = 0; i < N; i++) { 4082 ActiveAdmin admin = admins.get(i); 4083 if (admin.maximumFailedPasswordsForWipe == 4084 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 4085 continue; // No max number of failed passwords policy set for this profile. 4086 } 4087 4088 // We always favor the primary profile if several profiles have the same value set. 4089 int userId = admin.getUserHandle().getIdentifier(); 4090 if (count == 0 || 4091 count > admin.maximumFailedPasswordsForWipe || 4092 (count == admin.maximumFailedPasswordsForWipe && 4093 getUserInfo(userId).isPrimary())) { 4094 count = admin.maximumFailedPasswordsForWipe; 4095 strictestAdmin = admin; 4096 } 4097 } 4098 return strictestAdmin; 4099 } 4100 4101 private UserInfo getUserInfo(@UserIdInt int userId) { 4102 final long token = mInjector.binderClearCallingIdentity(); 4103 try { 4104 return mUserManager.getUserInfo(userId); 4105 } finally { 4106 mInjector.binderRestoreCallingIdentity(token); 4107 } 4108 } 4109 @Override 4110 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 4111 final int callingUid = mInjector.binderGetCallingUid(); 4112 final int userHandle = mInjector.userHandleGetCallingUserId(); 4113 4114 String password = passwordOrNull != null ? passwordOrNull : ""; 4115 4116 // Password resetting to empty/null is not allowed for managed profiles. 4117 if (TextUtils.isEmpty(password)) { 4118 enforceNotManagedProfile(userHandle, "clear the active password"); 4119 } 4120 4121 synchronized (this) { 4122 // If caller has PO (or DO) it can change the password, so see if that's the case first. 4123 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 4124 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 4125 final boolean preN; 4126 if (admin != null) { 4127 final int targetSdk = getTargetSdk(admin.info.getPackageName(), userHandle); 4128 if (targetSdk >= Build.VERSION_CODES.O) { 4129 throw new SecurityException("resetPassword() is deprecated for DPC targeting O" 4130 + " or later"); 4131 } 4132 preN = targetSdk <= android.os.Build.VERSION_CODES.M; 4133 } else { 4134 // Otherwise, make sure the caller has any active admin with the right policy. 4135 admin = getActiveAdminForCallerLocked(null, 4136 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 4137 preN = getTargetSdk(admin.info.getPackageName(), 4138 userHandle) <= android.os.Build.VERSION_CODES.M; 4139 4140 // As of N, password resetting to empty/null is not allowed anymore. 4141 // TODO Should we allow DO/PO to set an empty password? 4142 if (TextUtils.isEmpty(password)) { 4143 if (!preN) { 4144 throw new SecurityException("Cannot call with null password"); 4145 } else { 4146 Slog.e(LOG_TAG, "Cannot call with null password"); 4147 return false; 4148 } 4149 } 4150 // As of N, password cannot be changed by the admin if it is already set. 4151 if (isLockScreenSecureUnchecked(userHandle)) { 4152 if (!preN) { 4153 throw new SecurityException("Admin cannot change current password"); 4154 } else { 4155 Slog.e(LOG_TAG, "Admin cannot change current password"); 4156 return false; 4157 } 4158 } 4159 } 4160 // Do not allow to reset password when current user has a managed profile 4161 if (!isManagedProfile(userHandle)) { 4162 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4163 if (userInfo.isManagedProfile()) { 4164 if (!preN) { 4165 throw new IllegalStateException( 4166 "Cannot reset password on user has managed profile"); 4167 } else { 4168 Slog.e(LOG_TAG, "Cannot reset password on user has managed profile"); 4169 return false; 4170 } 4171 } 4172 } 4173 } 4174 // Do not allow to reset password when user is locked 4175 if (!mUserManager.isUserUnlocked(userHandle)) { 4176 if (!preN) { 4177 throw new IllegalStateException("Cannot reset password when user is locked"); 4178 } else { 4179 Slog.e(LOG_TAG, "Cannot reset password when user is locked"); 4180 return false; 4181 } 4182 } 4183 } 4184 4185 return resetPasswordInternal(password, 0, null, flags, callingUid, userHandle); 4186 } 4187 4188 private boolean resetPasswordInternal(String password, long tokenHandle, byte[] token, 4189 int flags, int callingUid, int userHandle) { 4190 int quality; 4191 synchronized (this) { 4192 quality = getPasswordQuality(null, userHandle, /* parent */ false); 4193 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 4194 quality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 4195 } 4196 final PasswordMetrics metrics = PasswordMetrics.computeForPassword(password); 4197 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 4198 final int realQuality = metrics.quality; 4199 if (realQuality < quality 4200 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4201 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 4202 + Integer.toHexString(realQuality) 4203 + " does not meet required quality 0x" 4204 + Integer.toHexString(quality)); 4205 return false; 4206 } 4207 quality = Math.max(realQuality, quality); 4208 } 4209 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 4210 if (password.length() < length) { 4211 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 4212 + " does not meet required length " + length); 4213 return false; 4214 } 4215 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4216 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 4217 if(metrics.letters < neededLetters) { 4218 Slog.w(LOG_TAG, "resetPassword: number of letters " + metrics.letters 4219 + " does not meet required number of letters " + neededLetters); 4220 return false; 4221 } 4222 int neededNumeric = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 4223 if (metrics.numeric < neededNumeric) { 4224 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + metrics.numeric 4225 + " does not meet required number of numerical digits " 4226 + neededNumeric); 4227 return false; 4228 } 4229 int neededLowerCase = getPasswordMinimumLowerCase( 4230 null, userHandle, /* parent */ false); 4231 if (metrics.lowerCase < neededLowerCase) { 4232 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " 4233 + metrics.lowerCase 4234 + " does not meet required number of lowercase letters " 4235 + neededLowerCase); 4236 return false; 4237 } 4238 int neededUpperCase = getPasswordMinimumUpperCase( 4239 null, userHandle, /* parent */ false); 4240 if (metrics.upperCase < neededUpperCase) { 4241 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " 4242 + metrics.upperCase 4243 + " does not meet required number of uppercase letters " 4244 + neededUpperCase); 4245 return false; 4246 } 4247 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 4248 if (metrics.symbols < neededSymbols) { 4249 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + metrics.symbols 4250 + " does not meet required number of special symbols " + neededSymbols); 4251 return false; 4252 } 4253 int neededNonLetter = getPasswordMinimumNonLetter( 4254 null, userHandle, /* parent */ false); 4255 if (metrics.nonLetter < neededNonLetter) { 4256 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " 4257 + metrics.nonLetter 4258 + " does not meet required number of non-letter characters " 4259 + neededNonLetter); 4260 return false; 4261 } 4262 } 4263 } 4264 4265 DevicePolicyData policy = getUserData(userHandle); 4266 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 4267 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 4268 return false; 4269 } 4270 4271 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 4272 boolean doNotAskCredentialsOnBoot = 4273 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 4274 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 4275 setDoNotAskCredentialsOnBoot(); 4276 } 4277 4278 // Don't do this with the lock held, because it is going to call 4279 // back in to the service. 4280 final long ident = mInjector.binderClearCallingIdentity(); 4281 final boolean result; 4282 try { 4283 if (token == null) { 4284 if (!TextUtils.isEmpty(password)) { 4285 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 4286 } else { 4287 mLockPatternUtils.clearLock(null, userHandle); 4288 } 4289 result = true; 4290 } else { 4291 result = mLockPatternUtils.setLockCredentialWithToken(password, 4292 TextUtils.isEmpty(password) ? LockPatternUtils.CREDENTIAL_TYPE_NONE 4293 : LockPatternUtils.CREDENTIAL_TYPE_PASSWORD, 4294 tokenHandle, token, userHandle); 4295 } 4296 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 4297 if (requireEntry) { 4298 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 4299 UserHandle.USER_ALL); 4300 } 4301 synchronized (this) { 4302 int newOwner = requireEntry ? callingUid : -1; 4303 if (policy.mPasswordOwner != newOwner) { 4304 policy.mPasswordOwner = newOwner; 4305 saveSettingsLocked(userHandle); 4306 } 4307 } 4308 } finally { 4309 mInjector.binderRestoreCallingIdentity(ident); 4310 } 4311 return result; 4312 } 4313 4314 private boolean isLockScreenSecureUnchecked(int userId) { 4315 long ident = mInjector.binderClearCallingIdentity(); 4316 try { 4317 return mLockPatternUtils.isSecure(userId); 4318 } finally { 4319 mInjector.binderRestoreCallingIdentity(ident); 4320 } 4321 } 4322 4323 private void setDoNotAskCredentialsOnBoot() { 4324 synchronized (this) { 4325 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4326 if (!policyData.doNotAskCredentialsOnBoot) { 4327 policyData.doNotAskCredentialsOnBoot = true; 4328 saveSettingsLocked(UserHandle.USER_SYSTEM); 4329 } 4330 } 4331 } 4332 4333 @Override 4334 public boolean getDoNotAskCredentialsOnBoot() { 4335 mContext.enforceCallingOrSelfPermission( 4336 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 4337 synchronized (this) { 4338 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4339 return policyData.doNotAskCredentialsOnBoot; 4340 } 4341 } 4342 4343 @Override 4344 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 4345 if (!mHasFeature) { 4346 return; 4347 } 4348 Preconditions.checkNotNull(who, "ComponentName is null"); 4349 final int userHandle = mInjector.userHandleGetCallingUserId(); 4350 synchronized (this) { 4351 ActiveAdmin ap = getActiveAdminForCallerLocked( 4352 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4353 if (ap.maximumTimeToUnlock != timeMs) { 4354 ap.maximumTimeToUnlock = timeMs; 4355 saveSettingsLocked(userHandle); 4356 updateMaximumTimeToLockLocked(userHandle); 4357 } 4358 } 4359 } 4360 4361 void updateMaximumTimeToLockLocked(int userHandle) { 4362 // Calculate the min timeout for all profiles - including the ones with a separate 4363 // challenge. Ideally if the timeout only affected the profile challenge we'd lock that 4364 // challenge only and keep the screen on. However there is no easy way of doing that at the 4365 // moment so we set the screen off timeout regardless of whether it affects the parent user 4366 // or the profile challenge only. 4367 long timeMs = Long.MAX_VALUE; 4368 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 4369 for (int profileId : profileIds) { 4370 DevicePolicyData policy = getUserDataUnchecked(profileId); 4371 final int N = policy.mAdminList.size(); 4372 for (int i = 0; i < N; i++) { 4373 ActiveAdmin admin = policy.mAdminList.get(i); 4374 if (admin.maximumTimeToUnlock > 0 4375 && timeMs > admin.maximumTimeToUnlock) { 4376 timeMs = admin.maximumTimeToUnlock; 4377 } 4378 // If userInfo.id is a managed profile, we also need to look at 4379 // the policies set on the parent. 4380 if (admin.hasParentActiveAdmin()) { 4381 final ActiveAdmin parentAdmin = admin.getParentActiveAdmin(); 4382 if (parentAdmin.maximumTimeToUnlock > 0 4383 && timeMs > parentAdmin.maximumTimeToUnlock) { 4384 timeMs = parentAdmin.maximumTimeToUnlock; 4385 } 4386 } 4387 } 4388 } 4389 4390 // We only store the last maximum time to lock on the parent profile. So if calling from a 4391 // managed profile, retrieve the policy for the parent. 4392 DevicePolicyData policy = getUserDataUnchecked(getProfileParentId(userHandle)); 4393 if (policy.mLastMaximumTimeToLock == timeMs) { 4394 return; 4395 } 4396 policy.mLastMaximumTimeToLock = timeMs; 4397 4398 final long ident = mInjector.binderClearCallingIdentity(); 4399 try { 4400 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 4401 // Make sure KEEP_SCREEN_ON is disabled, since that 4402 // would allow bypassing of the maximum time to lock. 4403 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 4404 } 4405 4406 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4407 (int) Math.min(policy.mLastMaximumTimeToLock, Integer.MAX_VALUE)); 4408 } finally { 4409 mInjector.binderRestoreCallingIdentity(ident); 4410 } 4411 } 4412 4413 @Override 4414 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 4415 if (!mHasFeature) { 4416 return 0; 4417 } 4418 enforceFullCrossUsersPermission(userHandle); 4419 synchronized (this) { 4420 if (who != null) { 4421 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4422 return admin != null ? admin.maximumTimeToUnlock : 0; 4423 } 4424 // Return the strictest policy across all participating admins. 4425 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4426 userHandle, parent); 4427 return getMaximumTimeToLockPolicyFromAdmins(admins); 4428 } 4429 } 4430 4431 @Override 4432 public long getMaximumTimeToLockForUserAndProfiles(int userHandle) { 4433 if (!mHasFeature) { 4434 return 0; 4435 } 4436 enforceFullCrossUsersPermission(userHandle); 4437 synchronized (this) { 4438 // All admins for this user. 4439 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 4440 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4441 DevicePolicyData policy = getUserData(userInfo.id); 4442 admins.addAll(policy.mAdminList); 4443 // If it is a managed profile, it may have parent active admins 4444 if (userInfo.isManagedProfile()) { 4445 for (ActiveAdmin admin : policy.mAdminList) { 4446 if (admin.hasParentActiveAdmin()) { 4447 admins.add(admin.getParentActiveAdmin()); 4448 } 4449 } 4450 } 4451 } 4452 return getMaximumTimeToLockPolicyFromAdmins(admins); 4453 } 4454 } 4455 4456 private long getMaximumTimeToLockPolicyFromAdmins(List<ActiveAdmin> admins) { 4457 long time = 0; 4458 final int N = admins.size(); 4459 for (int i = 0; i < N; i++) { 4460 ActiveAdmin admin = admins.get(i); 4461 if (time == 0) { 4462 time = admin.maximumTimeToUnlock; 4463 } else if (admin.maximumTimeToUnlock != 0 4464 && time > admin.maximumTimeToUnlock) { 4465 time = admin.maximumTimeToUnlock; 4466 } 4467 } 4468 return time; 4469 } 4470 4471 @Override 4472 public void setRequiredStrongAuthTimeout(ComponentName who, long timeoutMs, 4473 boolean parent) { 4474 if (!mHasFeature) { 4475 return; 4476 } 4477 Preconditions.checkNotNull(who, "ComponentName is null"); 4478 Preconditions.checkArgument(timeoutMs >= 0, "Timeout must not be a negative number."); 4479 // timeoutMs with value 0 means that the admin doesn't participate 4480 // timeoutMs is clamped to the interval in case the internal constants change in the future 4481 final long minimumStrongAuthTimeout = getMinimumStrongAuthTimeoutMs(); 4482 if (timeoutMs != 0 && timeoutMs < minimumStrongAuthTimeout) { 4483 timeoutMs = minimumStrongAuthTimeout; 4484 } 4485 if (timeoutMs > DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 4486 timeoutMs = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4487 } 4488 4489 final int userHandle = mInjector.userHandleGetCallingUserId(); 4490 synchronized (this) { 4491 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4492 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 4493 if (ap.strongAuthUnlockTimeout != timeoutMs) { 4494 ap.strongAuthUnlockTimeout = timeoutMs; 4495 saveSettingsLocked(userHandle); 4496 } 4497 } 4498 } 4499 4500 /** 4501 * Return a single admin's strong auth unlock timeout or minimum value (strictest) of all 4502 * admins if who is null. 4503 * Returns 0 if not configured for the provided admin. 4504 */ 4505 @Override 4506 public long getRequiredStrongAuthTimeout(ComponentName who, int userId, boolean parent) { 4507 if (!mHasFeature) { 4508 return DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4509 } 4510 enforceFullCrossUsersPermission(userId); 4511 synchronized (this) { 4512 if (who != null) { 4513 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId, parent); 4514 return admin != null ? admin.strongAuthUnlockTimeout : 0; 4515 } 4516 4517 // Return the strictest policy across all participating admins. 4518 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userId, parent); 4519 4520 long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4521 for (int i = 0; i < admins.size(); i++) { 4522 final long timeout = admins.get(i).strongAuthUnlockTimeout; 4523 if (timeout != 0) { // take only participating admins into account 4524 strongAuthUnlockTimeout = Math.min(timeout, strongAuthUnlockTimeout); 4525 } 4526 } 4527 return Math.max(strongAuthUnlockTimeout, getMinimumStrongAuthTimeoutMs()); 4528 } 4529 } 4530 4531 private long getMinimumStrongAuthTimeoutMs() { 4532 if (!mInjector.isBuildDebuggable()) { 4533 return MINIMUM_STRONG_AUTH_TIMEOUT_MS; 4534 } 4535 // ideally the property was named persist.sys.min_strong_auth_timeout, but system property 4536 // name cannot be longer than 31 characters 4537 return Math.min(mInjector.systemPropertiesGetLong("persist.sys.min_str_auth_timeo", 4538 MINIMUM_STRONG_AUTH_TIMEOUT_MS), 4539 MINIMUM_STRONG_AUTH_TIMEOUT_MS); 4540 } 4541 4542 @Override 4543 public void lockNow(int flags, boolean parent) { 4544 if (!mHasFeature) { 4545 return; 4546 } 4547 4548 final int callingUserId = mInjector.userHandleGetCallingUserId(); 4549 synchronized (this) { 4550 // This API can only be called by an active device admin, 4551 // so try to retrieve it to check that the caller is one. 4552 final ActiveAdmin admin = getActiveAdminForCallerLocked( 4553 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4554 4555 final long ident = mInjector.binderClearCallingIdentity(); 4556 try { 4557 // Evict key 4558 if ((flags & DevicePolicyManager.FLAG_EVICT_CE_KEY) != 0) { 4559 enforceManagedProfile(callingUserId, "set FLAG_EVICT_CE_KEY"); 4560 if (!isProfileOwner(admin.info.getComponent(), callingUserId)) { 4561 throw new SecurityException( 4562 "Only profile owner admins can set FLAG_EVICT_CE_KEY"); 4563 } 4564 if (parent) { 4565 throw new IllegalArgumentException( 4566 "Cannot set FLAG_EVICT_CE_KEY for the parent"); 4567 } 4568 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 4569 throw new UnsupportedOperationException( 4570 "FLAG_EVICT_CE_KEY only applies to FBE devices"); 4571 } 4572 mUserManager.evictCredentialEncryptionKey(callingUserId); 4573 } 4574 4575 // Lock all users unless this is a managed profile with a separate challenge 4576 final int userToLock = (parent || !isSeparateProfileChallengeEnabled(callingUserId) 4577 ? UserHandle.USER_ALL : callingUserId); 4578 mLockPatternUtils.requireStrongAuth( 4579 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 4580 4581 // Require authentication for the device or profile 4582 if (userToLock == UserHandle.USER_ALL) { 4583 // Power off the display 4584 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 4585 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 4586 mInjector.getIWindowManager().lockNow(null); 4587 } else { 4588 mInjector.getTrustManager().setDeviceLockedForUser(userToLock, true); 4589 } 4590 } catch (RemoteException e) { 4591 } finally { 4592 mInjector.binderRestoreCallingIdentity(ident); 4593 } 4594 } 4595 } 4596 4597 @Override 4598 public void enforceCanManageCaCerts(ComponentName who, String callerPackage) { 4599 if (who == null) { 4600 if (!isCallerDelegate(callerPackage, DELEGATION_CERT_INSTALL)) { 4601 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 4602 } 4603 } else { 4604 enforceProfileOrDeviceOwner(who); 4605 } 4606 } 4607 4608 private void enforceProfileOrDeviceOwner(ComponentName who) { 4609 synchronized (this) { 4610 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4611 } 4612 } 4613 4614 @Override 4615 public boolean approveCaCert(String alias, int userId, boolean approval) { 4616 enforceManageUsers(); 4617 synchronized (this) { 4618 Set<String> certs = getUserData(userId).mAcceptedCaCertificates; 4619 boolean changed = (approval ? certs.add(alias) : certs.remove(alias)); 4620 if (!changed) { 4621 return false; 4622 } 4623 saveSettingsLocked(userId); 4624 } 4625 new MonitoringCertNotificationTask(this, mInjector).execute(userId); 4626 return true; 4627 } 4628 4629 @Override 4630 public boolean isCaCertApproved(String alias, int userId) { 4631 enforceManageUsers(); 4632 synchronized (this) { 4633 return getUserData(userId).mAcceptedCaCertificates.contains(alias); 4634 } 4635 } 4636 4637 private void removeCaApprovalsIfNeeded(int userId) { 4638 for (UserInfo userInfo : mUserManager.getProfiles(userId)) { 4639 boolean isSecure = mLockPatternUtils.isSecure(userInfo.id); 4640 if (userInfo.isManagedProfile()){ 4641 isSecure |= mLockPatternUtils.isSecure(getProfileParentId(userInfo.id)); 4642 } 4643 if (!isSecure) { 4644 synchronized (this) { 4645 getUserData(userInfo.id).mAcceptedCaCertificates.clear(); 4646 saveSettingsLocked(userInfo.id); 4647 } 4648 4649 new MonitoringCertNotificationTask(this, mInjector).execute(userInfo.id); 4650 } 4651 } 4652 } 4653 4654 @Override 4655 public boolean installCaCert(ComponentName admin, String callerPackage, byte[] certBuffer) 4656 throws RemoteException { 4657 enforceCanManageCaCerts(admin, callerPackage); 4658 4659 byte[] pemCert; 4660 try { 4661 X509Certificate cert = parseCert(certBuffer); 4662 pemCert = Credentials.convertToPem(cert); 4663 } catch (CertificateException ce) { 4664 Log.e(LOG_TAG, "Problem converting cert", ce); 4665 return false; 4666 } catch (IOException ioe) { 4667 Log.e(LOG_TAG, "Problem reading cert", ioe); 4668 return false; 4669 } 4670 4671 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4672 final long id = mInjector.binderClearCallingIdentity(); 4673 try { 4674 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4675 try { 4676 keyChainConnection.getService().installCaCertificate(pemCert); 4677 return true; 4678 } catch (RemoteException e) { 4679 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 4680 } finally { 4681 keyChainConnection.close(); 4682 } 4683 } catch (InterruptedException e1) { 4684 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 4685 Thread.currentThread().interrupt(); 4686 } finally { 4687 mInjector.binderRestoreCallingIdentity(id); 4688 } 4689 return false; 4690 } 4691 4692 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 4693 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 4694 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 4695 certBuffer)); 4696 } 4697 4698 @Override 4699 public void uninstallCaCerts(ComponentName admin, String callerPackage, String[] aliases) { 4700 enforceCanManageCaCerts(admin, callerPackage); 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 for (int i = 0 ; i < aliases.length; i++) { 4708 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 4709 } 4710 } catch (RemoteException e) { 4711 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 4712 } finally { 4713 keyChainConnection.close(); 4714 } 4715 } catch (InterruptedException ie) { 4716 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 4717 Thread.currentThread().interrupt(); 4718 } finally { 4719 mInjector.binderRestoreCallingIdentity(id); 4720 } 4721 } 4722 4723 @Override 4724 public boolean installKeyPair(ComponentName who, String callerPackage, byte[] privKey, 4725 byte[] cert, byte[] chain, String alias, boolean requestAccess) { 4726 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 4727 DELEGATION_CERT_INSTALL); 4728 4729 4730 final int callingUid = mInjector.binderGetCallingUid(); 4731 final long id = mInjector.binderClearCallingIdentity(); 4732 try { 4733 final KeyChainConnection keyChainConnection = 4734 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 4735 try { 4736 IKeyChainService keyChain = keyChainConnection.getService(); 4737 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) { 4738 return false; 4739 } 4740 if (requestAccess) { 4741 keyChain.setGrant(callingUid, alias, true); 4742 } 4743 return true; 4744 } catch (RemoteException e) { 4745 Log.e(LOG_TAG, "Installing certificate", e); 4746 } finally { 4747 keyChainConnection.close(); 4748 } 4749 } catch (InterruptedException e) { 4750 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 4751 Thread.currentThread().interrupt(); 4752 } finally { 4753 mInjector.binderRestoreCallingIdentity(id); 4754 } 4755 return false; 4756 } 4757 4758 @Override 4759 public boolean removeKeyPair(ComponentName who, String callerPackage, String alias) { 4760 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 4761 DELEGATION_CERT_INSTALL); 4762 4763 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4764 final long id = Binder.clearCallingIdentity(); 4765 try { 4766 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4767 try { 4768 IKeyChainService keyChain = keyChainConnection.getService(); 4769 return keyChain.removeKeyPair(alias); 4770 } catch (RemoteException e) { 4771 Log.e(LOG_TAG, "Removing keypair", e); 4772 } finally { 4773 keyChainConnection.close(); 4774 } 4775 } catch (InterruptedException e) { 4776 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 4777 Thread.currentThread().interrupt(); 4778 } finally { 4779 Binder.restoreCallingIdentity(id); 4780 } 4781 return false; 4782 } 4783 4784 @Override 4785 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 4786 final IBinder response) { 4787 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 4788 if (!isCallerWithSystemUid()) { 4789 return; 4790 } 4791 4792 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 4793 // If there is a profile owner, redirect to that; otherwise query the device owner. 4794 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 4795 if (aliasChooser == null && caller.isSystem()) { 4796 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 4797 if (deviceOwnerAdmin != null) { 4798 aliasChooser = deviceOwnerAdmin.info.getComponent(); 4799 } 4800 } 4801 if (aliasChooser == null) { 4802 sendPrivateKeyAliasResponse(null, response); 4803 return; 4804 } 4805 4806 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 4807 intent.setComponent(aliasChooser); 4808 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 4809 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 4810 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 4811 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 4812 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4813 4814 final long id = mInjector.binderClearCallingIdentity(); 4815 try { 4816 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 4817 @Override 4818 public void onReceive(Context context, Intent intent) { 4819 final String chosenAlias = getResultData(); 4820 sendPrivateKeyAliasResponse(chosenAlias, response); 4821 } 4822 }, null, Activity.RESULT_OK, null, null); 4823 } finally { 4824 mInjector.binderRestoreCallingIdentity(id); 4825 } 4826 } 4827 4828 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 4829 final IKeyChainAliasCallback keyChainAliasResponse = 4830 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 4831 new AsyncTask<Void, Void, Void>() { 4832 @Override 4833 protected Void doInBackground(Void... unused) { 4834 try { 4835 keyChainAliasResponse.alias(alias); 4836 } catch (Exception e) { 4837 // Catch everything (not just RemoteException): caller could throw a 4838 // RuntimeException back across processes. 4839 Log.e(LOG_TAG, "error while responding to callback", e); 4840 } 4841 return null; 4842 } 4843 }.execute(); 4844 } 4845 4846 /** 4847 * Set the scopes of a device owner or profile owner delegate. 4848 * 4849 * @param who the device owner or profile owner. 4850 * @param delegatePackage the name of the delegate package. 4851 * @param scopes the list of delegation scopes to be given to the delegate package. 4852 */ 4853 @Override 4854 public void setDelegatedScopes(ComponentName who, String delegatePackage, 4855 List<String> scopes) throws SecurityException { 4856 Preconditions.checkNotNull(who, "ComponentName is null"); 4857 Preconditions.checkStringNotEmpty(delegatePackage, "Delegate package is null or empty"); 4858 Preconditions.checkCollectionElementsNotNull(scopes, "Scopes"); 4859 // Remove possible duplicates. 4860 scopes = new ArrayList(new ArraySet(scopes)); 4861 // Ensure given scopes are valid. 4862 if (scopes.retainAll(Arrays.asList(DELEGATIONS))) { 4863 throw new IllegalArgumentException("Unexpected delegation scopes"); 4864 } 4865 4866 // Retrieve the user ID of the calling process. 4867 final int userId = mInjector.userHandleGetCallingUserId(); 4868 synchronized (this) { 4869 // Ensure calling process is device/profile owner. 4870 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4871 // Ensure the delegate is installed (skip this for DELEGATION_CERT_INSTALL in pre-N). 4872 if (scopes.size() == 1 && scopes.get(0).equals(DELEGATION_CERT_INSTALL) || 4873 getTargetSdk(who.getPackageName(), userId) >= Build.VERSION_CODES.N) { 4874 // Throw when the delegate package is not installed. 4875 if (!isPackageInstalledForUser(delegatePackage, userId)) { 4876 throw new IllegalArgumentException("Package " + delegatePackage 4877 + " is not installed on the current user"); 4878 } 4879 } 4880 4881 // Set the new delegate in user policies. 4882 final DevicePolicyData policy = getUserData(userId); 4883 if (!scopes.isEmpty()) { 4884 policy.mDelegationMap.put(delegatePackage, new ArrayList<>(scopes)); 4885 } else { 4886 // Remove any delegation info if the given scopes list is empty. 4887 policy.mDelegationMap.remove(delegatePackage); 4888 } 4889 4890 // Notify delegate package of updates. 4891 final Intent intent = new Intent( 4892 DevicePolicyManager.ACTION_APPLICATION_DELEGATION_SCOPES_CHANGED); 4893 // Only call receivers registered with Context#registerReceiver (don’t wake delegate). 4894 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 4895 // Limit components this intent resolves to to the delegate package. 4896 intent.setPackage(delegatePackage); 4897 // Include the list of delegated scopes as an extra. 4898 intent.putStringArrayListExtra(DevicePolicyManager.EXTRA_DELEGATION_SCOPES, 4899 (ArrayList<String>) scopes); 4900 // Send the broadcast. 4901 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 4902 4903 // Persist updates. 4904 saveSettingsLocked(userId); 4905 } 4906 } 4907 4908 /** 4909 * Get the delegation scopes given to a delegate package by a device owner or profile owner. 4910 * 4911 * A DO/PO can get the scopes of any package. A non DO/PO package can get its own scopes by 4912 * passing in {@code null} as the {@code who} parameter and its own name as the 4913 * {@code delegatepackage}. 4914 * 4915 * @param who the device owner or profile owner, or {@code null} if the caller is 4916 * {@code delegatePackage}. 4917 * @param delegatePackage the name of the delegate package whose scopes are to be retrieved. 4918 * @return a list of the delegation scopes currently given to {@code delegatePackage}. 4919 */ 4920 @Override 4921 @NonNull 4922 public List<String> getDelegatedScopes(ComponentName who, 4923 String delegatePackage) throws SecurityException { 4924 Preconditions.checkNotNull(delegatePackage, "Delegate package is null"); 4925 4926 // Retrieve the user ID of the calling process. 4927 final int callingUid = mInjector.binderGetCallingUid(); 4928 final int userId = UserHandle.getUserId(callingUid); 4929 synchronized (this) { 4930 // Ensure calling process is device/profile owner. 4931 if (who != null) { 4932 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4933 // Or ensure calling process is delegatePackage itself. 4934 } else { 4935 int uid = 0; 4936 try { 4937 uid = mInjector.getPackageManager() 4938 .getPackageUidAsUser(delegatePackage, userId); 4939 } catch(NameNotFoundException e) { 4940 } 4941 if (uid != callingUid) { 4942 throw new SecurityException("Caller with uid " + callingUid + " is not " 4943 + delegatePackage); 4944 } 4945 } 4946 final DevicePolicyData policy = getUserData(userId); 4947 // Retrieve the scopes assigned to delegatePackage, or null if no scope was given. 4948 final List<String> scopes = policy.mDelegationMap.get(delegatePackage); 4949 return scopes == null ? Collections.EMPTY_LIST : scopes; 4950 } 4951 } 4952 4953 /** 4954 * Get a list of packages that were given a specific delegation scopes by a device owner or 4955 * profile owner. 4956 * 4957 * @param who the device owner or profile owner. 4958 * @param scope the scope whose delegates are to be retrieved. 4959 * @return a list of the delegate packages currently given the {@code scope} delegation. 4960 */ 4961 @NonNull 4962 public List<String> getDelegatePackages(ComponentName who, String scope) 4963 throws SecurityException { 4964 Preconditions.checkNotNull(who, "ComponentName is null"); 4965 Preconditions.checkNotNull(scope, "Scope is null"); 4966 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 4967 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 4968 } 4969 4970 // Retrieve the user ID of the calling process. 4971 final int userId = mInjector.userHandleGetCallingUserId(); 4972 synchronized (this) { 4973 // Ensure calling process is device/profile owner. 4974 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4975 final DevicePolicyData policy = getUserData(userId); 4976 4977 // Create a list to hold the resulting delegate packages. 4978 final List<String> delegatePackagesWithScope = new ArrayList<>(); 4979 // Add all delegations containing scope to the result list. 4980 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 4981 if (policy.mDelegationMap.valueAt(i).contains(scope)) { 4982 delegatePackagesWithScope.add(policy.mDelegationMap.keyAt(i)); 4983 } 4984 } 4985 return delegatePackagesWithScope; 4986 } 4987 } 4988 4989 /** 4990 * Check whether a caller application has been delegated a given scope via 4991 * {@link #setDelegatedScopes} to access privileged APIs on the behalf of a profile owner or 4992 * device owner. 4993 * <p> 4994 * This is done by checking that {@code callerPackage} was granted {@code scope} delegation and 4995 * then comparing the calling UID with the UID of {@code callerPackage} as reported by 4996 * {@link PackageManager#getPackageUidAsUser}. 4997 * 4998 * @param callerPackage the name of the package that is trying to invoke a function in the DPMS. 4999 * @param scope the delegation scope to be checked. 5000 * @return {@code true} if the calling process is a delegate of {@code scope}. 5001 */ 5002 private boolean isCallerDelegate(String callerPackage, String scope) { 5003 Preconditions.checkNotNull(callerPackage, "callerPackage is null"); 5004 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5005 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5006 } 5007 5008 // Retrieve the UID and user ID of the calling process. 5009 final int callingUid = mInjector.binderGetCallingUid(); 5010 final int userId = UserHandle.getUserId(callingUid); 5011 synchronized (this) { 5012 // Retrieve user policy data. 5013 final DevicePolicyData policy = getUserData(userId); 5014 // Retrieve the list of delegation scopes granted to callerPackage. 5015 final List<String> scopes = policy.mDelegationMap.get(callerPackage); 5016 // Check callingUid only if callerPackage has the required scope delegation. 5017 if (scopes != null && scopes.contains(scope)) { 5018 try { 5019 // Retrieve the expected UID for callerPackage. 5020 final int uid = mInjector.getPackageManager() 5021 .getPackageUidAsUser(callerPackage, userId); 5022 // Return true if the caller is actually callerPackage. 5023 return uid == callingUid; 5024 } catch (NameNotFoundException e) { 5025 // Ignore. 5026 } 5027 } 5028 return false; 5029 } 5030 } 5031 5032 /** 5033 * Throw a security exception if a ComponentName is given and it is not a device/profile owner 5034 * or if the calling process is not a delegate of the given scope. 5035 * 5036 * @param who the device owner of profile owner, or null if {@code callerPackage} is a 5037 * {@code scope} delegate. 5038 * @param callerPackage the name of the calling package. Required if {@code who} is 5039 * {@code null}. 5040 * @param reqPolicy the policy used in the API whose access permission is being checked. 5041 * @param scoppe the delegation scope corresponding to the API being checked. 5042 * @throws SecurityException if {@code who} is given and is not an owner for {@code reqPolicy}; 5043 * or when {@code who} is {@code null} and {@code callerPackage} is not a delegate 5044 * of {@code scope}. 5045 */ 5046 private void enforceCanManageScope(ComponentName who, String callerPackage, int reqPolicy, 5047 String scope) { 5048 // If a ComponentName is given ensure it is a device or profile owner according to policy. 5049 if (who != null) { 5050 synchronized (this) { 5051 getActiveAdminForCallerLocked(who, reqPolicy); 5052 } 5053 // If no ComponentName is given ensure calling process has scope delegation. 5054 } else if (!isCallerDelegate(callerPackage, scope)) { 5055 throw new SecurityException("Caller with uid " + mInjector.binderGetCallingUid() 5056 + " is not a delegate of scope " + scope + "."); 5057 } 5058 } 5059 5060 /** 5061 * Helper function to preserve delegation behavior pre-O when using the deprecated functions 5062 * {@code #setCertInstallerPackage} and {@code #setApplicationRestrictionsManagingPackage}. 5063 */ 5064 private void setDelegatedScopePreO(ComponentName who, 5065 String delegatePackage, String scope) { 5066 Preconditions.checkNotNull(who, "ComponentName is null"); 5067 5068 final int userId = mInjector.userHandleGetCallingUserId(); 5069 synchronized(this) { 5070 // Ensure calling process is device/profile owner. 5071 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5072 final DevicePolicyData policy = getUserData(userId); 5073 5074 if (delegatePackage != null) { 5075 // Set package as a delegate for scope if it is not already one. 5076 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5077 if (scopes == null) { 5078 scopes = new ArrayList<>(); 5079 } 5080 if (!scopes.contains(scope)) { 5081 scopes.add(scope); 5082 setDelegatedScopes(who, delegatePackage, scopes); 5083 } 5084 } 5085 5086 // Clear any existing scope delegates. 5087 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5088 final String currentPackage = policy.mDelegationMap.keyAt(i); 5089 final List<String> currentScopes = policy.mDelegationMap.valueAt(i); 5090 5091 if (!currentPackage.equals(delegatePackage) && currentScopes.remove(scope)) { 5092 setDelegatedScopes(who, currentPackage, currentScopes); 5093 } 5094 } 5095 } 5096 } 5097 5098 @Override 5099 public void setCertInstallerPackage(ComponentName who, String installerPackage) 5100 throws SecurityException { 5101 setDelegatedScopePreO(who, installerPackage, DELEGATION_CERT_INSTALL); 5102 } 5103 5104 @Override 5105 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 5106 final List<String> delegatePackages = getDelegatePackages(who, DELEGATION_CERT_INSTALL); 5107 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 5108 } 5109 5110 /** 5111 * @return {@code true} if the package is installed and set as always-on, {@code false} if it is 5112 * not installed and therefore not available. 5113 * 5114 * @throws SecurityException if the caller is not a profile or device owner. 5115 * @throws UnsupportedOperationException if the package does not support being set as always-on. 5116 */ 5117 @Override 5118 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage, boolean lockdown) 5119 throws SecurityException { 5120 enforceProfileOrDeviceOwner(admin); 5121 5122 final int userId = mInjector.userHandleGetCallingUserId(); 5123 final long token = mInjector.binderClearCallingIdentity(); 5124 try { 5125 if (vpnPackage != null && !isPackageInstalledForUser(vpnPackage, userId)) { 5126 return false; 5127 } 5128 ConnectivityManager connectivityManager = (ConnectivityManager) 5129 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5130 if (!connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage, lockdown)) { 5131 throw new UnsupportedOperationException(); 5132 } 5133 } finally { 5134 mInjector.binderRestoreCallingIdentity(token); 5135 } 5136 return true; 5137 } 5138 5139 @Override 5140 public String getAlwaysOnVpnPackage(ComponentName admin) 5141 throws SecurityException { 5142 enforceProfileOrDeviceOwner(admin); 5143 5144 final int userId = mInjector.userHandleGetCallingUserId(); 5145 final long token = mInjector.binderClearCallingIdentity(); 5146 try{ 5147 ConnectivityManager connectivityManager = (ConnectivityManager) 5148 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5149 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 5150 } finally { 5151 mInjector.binderRestoreCallingIdentity(token); 5152 } 5153 } 5154 5155 private void forceWipeDeviceNoLock(boolean wipeExtRequested, String reason) { 5156 wtfIfInLock(); 5157 5158 if (wipeExtRequested) { 5159 StorageManager sm = (StorageManager) mContext.getSystemService( 5160 Context.STORAGE_SERVICE); 5161 sm.wipeAdoptableDisks(); 5162 } 5163 try { 5164 mInjector.recoverySystemRebootWipeUserData( 5165 /*shutdown=*/ false, reason, /*force=*/ true); 5166 } catch (IOException | SecurityException e) { 5167 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 5168 } 5169 } 5170 5171 private void forceWipeUser(int userId) { 5172 try { 5173 IActivityManager am = mInjector.getIActivityManager(); 5174 if (am.getCurrentUser().id == userId) { 5175 am.switchUser(UserHandle.USER_SYSTEM); 5176 } 5177 5178 boolean userRemoved = mUserManagerInternal.removeUserEvenWhenDisallowed(userId); 5179 if (!userRemoved) { 5180 Slog.w(LOG_TAG, "Couldn't remove user " + userId); 5181 } else if (isManagedProfile(userId)) { 5182 sendWipeProfileNotification(); 5183 } 5184 } catch (RemoteException re) { 5185 // Shouldn't happen 5186 } 5187 } 5188 5189 @Override 5190 public void wipeData(int flags) { 5191 if (!mHasFeature) { 5192 return; 5193 } 5194 enforceFullCrossUsersPermission(mInjector.userHandleGetCallingUserId()); 5195 5196 final ActiveAdmin admin; 5197 synchronized (this) { 5198 admin = getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_WIPE_DATA); 5199 } 5200 String reason = "DevicePolicyManager.wipeData() from " 5201 + admin.info.getComponent().flattenToShortString(); 5202 wipeDataNoLock( 5203 admin.info.getComponent(), flags, reason, admin.getUserHandle().getIdentifier()); 5204 } 5205 5206 private void wipeDataNoLock(ComponentName admin, int flags, String reason, int userId) { 5207 wtfIfInLock(); 5208 5209 long ident = mInjector.binderClearCallingIdentity(); 5210 try { 5211 // First check whether the admin is allowed to wipe the device/user/profile. 5212 final String restriction; 5213 if (userId == UserHandle.USER_SYSTEM) { 5214 restriction = UserManager.DISALLOW_FACTORY_RESET; 5215 } else if (isManagedProfile(userId)) { 5216 restriction = UserManager.DISALLOW_REMOVE_MANAGED_PROFILE; 5217 } else { 5218 restriction = UserManager.DISALLOW_REMOVE_USER; 5219 } 5220 if (isAdminAffectedByRestriction(admin, restriction, userId)) { 5221 throw new SecurityException("Cannot wipe data. " + restriction 5222 + " restriction is set for user " + userId); 5223 } 5224 5225 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 5226 if (!isDeviceOwner(admin, userId)) { 5227 throw new SecurityException( 5228 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 5229 } 5230 PersistentDataBlockManager manager = (PersistentDataBlockManager) 5231 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 5232 if (manager != null) { 5233 manager.wipe(); 5234 } 5235 } 5236 5237 // TODO If split user is enabled and the device owner is set in the primary user 5238 // (rather than system), we should probably trigger factory reset. Current code just 5239 // removes that user (but still clears FRP...) 5240 if (userId == UserHandle.USER_SYSTEM) { 5241 forceWipeDeviceNoLock(/*wipeExtRequested=*/ (flags & WIPE_EXTERNAL_STORAGE) != 0, 5242 reason); 5243 } else { 5244 forceWipeUser(userId); 5245 } 5246 } finally { 5247 mInjector.binderRestoreCallingIdentity(ident); 5248 } 5249 } 5250 5251 private void sendWipeProfileNotification() { 5252 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 5253 Notification notification = new Notification.Builder(mContext) 5254 .setSmallIcon(android.R.drawable.stat_sys_warning) 5255 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 5256 .setContentText(contentText) 5257 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 5258 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 5259 .build(); 5260 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 5261 } 5262 5263 private void clearWipeProfileNotification() { 5264 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 5265 } 5266 5267 @Override 5268 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 5269 if (!mHasFeature) { 5270 return; 5271 } 5272 enforceFullCrossUsersPermission(userHandle); 5273 mContext.enforceCallingOrSelfPermission( 5274 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5275 5276 synchronized (this) { 5277 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 5278 if (admin == null) { 5279 result.sendResult(null); 5280 return; 5281 } 5282 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 5283 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 5284 intent.setComponent(admin.info.getComponent()); 5285 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 5286 null, new BroadcastReceiver() { 5287 @Override 5288 public void onReceive(Context context, Intent intent) { 5289 result.sendResult(getResultExtras(false)); 5290 } 5291 }, null, Activity.RESULT_OK, null, null); 5292 } 5293 } 5294 5295 @Override 5296 public void setActivePasswordState(PasswordMetrics metrics, int userHandle) { 5297 if (!mHasFeature) { 5298 return; 5299 } 5300 enforceFullCrossUsersPermission(userHandle); 5301 mContext.enforceCallingOrSelfPermission( 5302 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5303 5304 // If the managed profile doesn't have a separate password, set the metrics to default 5305 if (isManagedProfile(userHandle) && !isSeparateProfileChallengeEnabled(userHandle)) { 5306 metrics = new PasswordMetrics(); 5307 } 5308 5309 validateQualityConstant(metrics.quality); 5310 DevicePolicyData policy = getUserData(userHandle); 5311 synchronized (this) { 5312 policy.mActivePasswordMetrics = metrics; 5313 } 5314 } 5315 5316 @Override 5317 public void reportPasswordChanged(@UserIdInt int userId) { 5318 if (!mHasFeature) { 5319 return; 5320 } 5321 enforceFullCrossUsersPermission(userId); 5322 5323 // Managed Profile password can only be changed when it has a separate challenge. 5324 if (!isSeparateProfileChallengeEnabled(userId)) { 5325 enforceNotManagedProfile(userId, "set the active password"); 5326 } 5327 5328 mContext.enforceCallingOrSelfPermission( 5329 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5330 5331 DevicePolicyData policy = getUserData(userId); 5332 5333 long ident = mInjector.binderClearCallingIdentity(); 5334 try { 5335 synchronized (this) { 5336 policy.mFailedPasswordAttempts = 0; 5337 saveSettingsLocked(userId); 5338 updatePasswordExpirationsLocked(userId); 5339 setExpirationAlarmCheckLocked(mContext, userId, /* parent */ false); 5340 5341 // Send a broadcast to each profile using this password as its primary unlock. 5342 sendAdminCommandForLockscreenPoliciesLocked( 5343 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 5344 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userId); 5345 } 5346 removeCaApprovalsIfNeeded(userId); 5347 } finally { 5348 mInjector.binderRestoreCallingIdentity(ident); 5349 } 5350 } 5351 5352 /** 5353 * Called any time the device password is updated. Resets all password expiration clocks. 5354 */ 5355 private void updatePasswordExpirationsLocked(int userHandle) { 5356 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 5357 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 5358 userHandle, /* parent */ false); 5359 final int N = admins.size(); 5360 for (int i = 0; i < N; i++) { 5361 ActiveAdmin admin = admins.get(i); 5362 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 5363 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 5364 long timeout = admin.passwordExpirationTimeout; 5365 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 5366 admin.passwordExpirationDate = expiration; 5367 } 5368 } 5369 for (int affectedUserId : affectedUserIds) { 5370 saveSettingsLocked(affectedUserId); 5371 } 5372 } 5373 5374 @Override 5375 public void reportFailedPasswordAttempt(int userHandle) { 5376 enforceFullCrossUsersPermission(userHandle); 5377 if (!isSeparateProfileChallengeEnabled(userHandle)) { 5378 enforceNotManagedProfile(userHandle, 5379 "report failed password attempt if separate profile challenge is not in place"); 5380 } 5381 mContext.enforceCallingOrSelfPermission( 5382 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5383 5384 boolean wipeData = false; 5385 ActiveAdmin strictestAdmin = null; 5386 final long ident = mInjector.binderClearCallingIdentity(); 5387 try { 5388 synchronized (this) { 5389 DevicePolicyData policy = getUserData(userHandle); 5390 policy.mFailedPasswordAttempts++; 5391 saveSettingsLocked(userHandle); 5392 if (mHasFeature) { 5393 strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 5394 userHandle, /* parent */ false); 5395 int max = strictestAdmin != null 5396 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 5397 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 5398 wipeData = true; 5399 } 5400 5401 sendAdminCommandForLockscreenPoliciesLocked( 5402 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 5403 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 5404 } 5405 } 5406 } finally { 5407 mInjector.binderRestoreCallingIdentity(ident); 5408 } 5409 5410 if (wipeData && strictestAdmin != null) { 5411 final int userId = strictestAdmin.getUserHandle().getIdentifier(); 5412 Slog.i(LOG_TAG, "Max failed password attempts policy reached for admin: " 5413 + strictestAdmin.info.getComponent().flattenToShortString() 5414 + ". Calling wipeData for user " + userId); 5415 5416 // Attempt to wipe the device/user/profile associated with the admin, as if the 5417 // admin had called wipeData(). That way we can check whether the admin is actually 5418 // allowed to wipe the device (e.g. a regular device admin shouldn't be able to wipe the 5419 // device if the device owner has set DISALLOW_FACTORY_RESET, but the DO should be 5420 // able to do so). 5421 // IMPORTANT: Call without holding the lock to prevent deadlock. 5422 try { 5423 wipeDataNoLock(strictestAdmin.info.getComponent(), 5424 /*flags=*/ 0, 5425 /*reason=*/ "reportFailedPasswordAttempt()", 5426 userId); 5427 } catch (SecurityException e) { 5428 Slog.w(LOG_TAG, "Failed to wipe user " + userId 5429 + " after max failed password attempts reached.", e); 5430 } 5431 } 5432 5433 if (mInjector.securityLogIsLoggingEnabled()) { 5434 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 5435 /*method strength*/ 1); 5436 } 5437 } 5438 5439 @Override 5440 public void reportSuccessfulPasswordAttempt(int userHandle) { 5441 enforceFullCrossUsersPermission(userHandle); 5442 mContext.enforceCallingOrSelfPermission( 5443 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5444 5445 synchronized (this) { 5446 DevicePolicyData policy = getUserData(userHandle); 5447 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 5448 long ident = mInjector.binderClearCallingIdentity(); 5449 try { 5450 policy.mFailedPasswordAttempts = 0; 5451 policy.mPasswordOwner = -1; 5452 saveSettingsLocked(userHandle); 5453 if (mHasFeature) { 5454 sendAdminCommandForLockscreenPoliciesLocked( 5455 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 5456 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 5457 } 5458 } finally { 5459 mInjector.binderRestoreCallingIdentity(ident); 5460 } 5461 } 5462 } 5463 5464 if (mInjector.securityLogIsLoggingEnabled()) { 5465 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5466 /*method strength*/ 1); 5467 } 5468 } 5469 5470 @Override 5471 public void reportFailedFingerprintAttempt(int userHandle) { 5472 enforceFullCrossUsersPermission(userHandle); 5473 mContext.enforceCallingOrSelfPermission( 5474 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5475 if (mInjector.securityLogIsLoggingEnabled()) { 5476 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 5477 /*method strength*/ 0); 5478 } 5479 } 5480 5481 @Override 5482 public void reportSuccessfulFingerprintAttempt(int userHandle) { 5483 enforceFullCrossUsersPermission(userHandle); 5484 mContext.enforceCallingOrSelfPermission( 5485 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5486 if (mInjector.securityLogIsLoggingEnabled()) { 5487 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5488 /*method strength*/ 0); 5489 } 5490 } 5491 5492 @Override 5493 public void reportKeyguardDismissed(int userHandle) { 5494 enforceFullCrossUsersPermission(userHandle); 5495 mContext.enforceCallingOrSelfPermission( 5496 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5497 5498 if (mInjector.securityLogIsLoggingEnabled()) { 5499 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 5500 } 5501 } 5502 5503 @Override 5504 public void reportKeyguardSecured(int userHandle) { 5505 enforceFullCrossUsersPermission(userHandle); 5506 mContext.enforceCallingOrSelfPermission( 5507 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5508 5509 if (mInjector.securityLogIsLoggingEnabled()) { 5510 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 5511 } 5512 } 5513 5514 @Override 5515 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 5516 String exclusionList) { 5517 if (!mHasFeature) { 5518 return null; 5519 } 5520 synchronized(this) { 5521 Preconditions.checkNotNull(who, "ComponentName is null"); 5522 5523 // Only check if system user has set global proxy. We don't allow other users to set it. 5524 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5525 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5526 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 5527 5528 // Scan through active admins and find if anyone has already 5529 // set the global proxy. 5530 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 5531 for (ComponentName component : compSet) { 5532 ActiveAdmin ap = policy.mAdminMap.get(component); 5533 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 5534 // Another admin already sets the global proxy 5535 // Return it to the caller. 5536 return component; 5537 } 5538 } 5539 5540 // If the user is not system, don't set the global proxy. Fail silently. 5541 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 5542 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 5543 + UserHandle.getCallingUserId() + " is not permitted."); 5544 return null; 5545 } 5546 if (proxySpec == null) { 5547 admin.specifiesGlobalProxy = false; 5548 admin.globalProxySpec = null; 5549 admin.globalProxyExclusionList = null; 5550 } else { 5551 5552 admin.specifiesGlobalProxy = true; 5553 admin.globalProxySpec = proxySpec; 5554 admin.globalProxyExclusionList = exclusionList; 5555 } 5556 5557 // Reset the global proxy accordingly 5558 // Do this using system permissions, as apps cannot write to secure settings 5559 long origId = mInjector.binderClearCallingIdentity(); 5560 try { 5561 resetGlobalProxyLocked(policy); 5562 } finally { 5563 mInjector.binderRestoreCallingIdentity(origId); 5564 } 5565 return null; 5566 } 5567 } 5568 5569 @Override 5570 public ComponentName getGlobalProxyAdmin(int userHandle) { 5571 if (!mHasFeature) { 5572 return null; 5573 } 5574 enforceFullCrossUsersPermission(userHandle); 5575 synchronized(this) { 5576 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5577 // Scan through active admins and find if anyone has already 5578 // set the global proxy. 5579 final int N = policy.mAdminList.size(); 5580 for (int i = 0; i < N; i++) { 5581 ActiveAdmin ap = policy.mAdminList.get(i); 5582 if (ap.specifiesGlobalProxy) { 5583 // Device admin sets the global proxy 5584 // Return it to the caller. 5585 return ap.info.getComponent(); 5586 } 5587 } 5588 } 5589 // No device admin sets the global proxy. 5590 return null; 5591 } 5592 5593 @Override 5594 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 5595 synchronized (this) { 5596 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5597 } 5598 long token = mInjector.binderClearCallingIdentity(); 5599 try { 5600 ConnectivityManager connectivityManager = (ConnectivityManager) 5601 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5602 connectivityManager.setGlobalProxy(proxyInfo); 5603 } finally { 5604 mInjector.binderRestoreCallingIdentity(token); 5605 } 5606 } 5607 5608 private void resetGlobalProxyLocked(DevicePolicyData policy) { 5609 final int N = policy.mAdminList.size(); 5610 for (int i = 0; i < N; i++) { 5611 ActiveAdmin ap = policy.mAdminList.get(i); 5612 if (ap.specifiesGlobalProxy) { 5613 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 5614 return; 5615 } 5616 } 5617 // No device admins defining global proxies - reset global proxy settings to none 5618 saveGlobalProxyLocked(null, null); 5619 } 5620 5621 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 5622 if (exclusionList == null) { 5623 exclusionList = ""; 5624 } 5625 if (proxySpec == null) { 5626 proxySpec = ""; 5627 } 5628 // Remove white spaces 5629 proxySpec = proxySpec.trim(); 5630 String data[] = proxySpec.split(":"); 5631 int proxyPort = 8080; 5632 if (data.length > 1) { 5633 try { 5634 proxyPort = Integer.parseInt(data[1]); 5635 } catch (NumberFormatException e) {} 5636 } 5637 exclusionList = exclusionList.trim(); 5638 5639 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 5640 if (!proxyProperties.isValid()) { 5641 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 5642 return; 5643 } 5644 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 5645 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 5646 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 5647 exclusionList); 5648 } 5649 5650 /** 5651 * Set the storage encryption request for a single admin. Returns the new total request 5652 * status (for all admins). 5653 */ 5654 @Override 5655 public int setStorageEncryption(ComponentName who, boolean encrypt) { 5656 if (!mHasFeature) { 5657 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5658 } 5659 Preconditions.checkNotNull(who, "ComponentName is null"); 5660 final int userHandle = UserHandle.getCallingUserId(); 5661 synchronized (this) { 5662 // Check for permissions 5663 // Only system user can set storage encryption 5664 if (userHandle != UserHandle.USER_SYSTEM) { 5665 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 5666 + UserHandle.getCallingUserId() + " is not permitted."); 5667 return 0; 5668 } 5669 5670 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5671 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 5672 5673 // Quick exit: If the filesystem does not support encryption, we can exit early. 5674 if (!isEncryptionSupported()) { 5675 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5676 } 5677 5678 // (1) Record the value for the admin so it's sticky 5679 if (ap.encryptionRequested != encrypt) { 5680 ap.encryptionRequested = encrypt; 5681 saveSettingsLocked(userHandle); 5682 } 5683 5684 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5685 // (2) Compute "max" for all admins 5686 boolean newRequested = false; 5687 final int N = policy.mAdminList.size(); 5688 for (int i = 0; i < N; i++) { 5689 newRequested |= policy.mAdminList.get(i).encryptionRequested; 5690 } 5691 5692 // Notify OS of new request 5693 setEncryptionRequested(newRequested); 5694 5695 // Return the new global request status 5696 return newRequested 5697 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 5698 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5699 } 5700 } 5701 5702 /** 5703 * Get the current storage encryption request status for a given admin, or aggregate of all 5704 * active admins. 5705 */ 5706 @Override 5707 public boolean getStorageEncryption(ComponentName who, int userHandle) { 5708 if (!mHasFeature) { 5709 return false; 5710 } 5711 enforceFullCrossUsersPermission(userHandle); 5712 synchronized (this) { 5713 // Check for permissions if a particular caller is specified 5714 if (who != null) { 5715 // When checking for a single caller, status is based on caller's request 5716 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 5717 return ap != null ? ap.encryptionRequested : false; 5718 } 5719 5720 // If no particular caller is specified, return the aggregate set of requests. 5721 // This is short circuited by returning true on the first hit. 5722 DevicePolicyData policy = getUserData(userHandle); 5723 final int N = policy.mAdminList.size(); 5724 for (int i = 0; i < N; i++) { 5725 if (policy.mAdminList.get(i).encryptionRequested) { 5726 return true; 5727 } 5728 } 5729 return false; 5730 } 5731 } 5732 5733 /** 5734 * Get the current encryption status of the device. 5735 */ 5736 @Override 5737 public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) { 5738 if (!mHasFeature) { 5739 // Ok to return current status. 5740 } 5741 enforceFullCrossUsersPermission(userHandle); 5742 5743 // It's not critical here, but let's make sure the package name is correct, in case 5744 // we start using it for different purposes. 5745 ensureCallerPackage(callerPackage); 5746 5747 final ApplicationInfo ai; 5748 try { 5749 ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle); 5750 } catch (RemoteException e) { 5751 throw new SecurityException(e); 5752 } 5753 5754 boolean legacyApp = false; 5755 if (ai.targetSdkVersion <= Build.VERSION_CODES.M) { 5756 legacyApp = true; 5757 } 5758 5759 final int rawStatus = getEncryptionStatus(); 5760 if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) { 5761 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5762 } 5763 return rawStatus; 5764 } 5765 5766 /** 5767 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 5768 */ 5769 private boolean isEncryptionSupported() { 5770 // Note, this can be implemented as 5771 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5772 // But is provided as a separate internal method if there's a faster way to do a 5773 // simple check for supported-or-not. 5774 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5775 } 5776 5777 /** 5778 * Hook to low-levels: Reporting the current status of encryption. 5779 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 5780 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 5781 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, 5782 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or 5783 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 5784 */ 5785 private int getEncryptionStatus() { 5786 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 5787 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER; 5788 } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) { 5789 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5790 } else if (mInjector.storageManagerIsEncrypted()) { 5791 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 5792 } else if (mInjector.storageManagerIsEncryptable()) { 5793 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5794 } else { 5795 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5796 } 5797 } 5798 5799 /** 5800 * Hook to low-levels: If needed, record the new admin setting for encryption. 5801 */ 5802 private void setEncryptionRequested(boolean encrypt) { 5803 } 5804 5805 /** 5806 * Set whether the screen capture is disabled for the user managed by the specified admin. 5807 */ 5808 @Override 5809 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 5810 if (!mHasFeature) { 5811 return; 5812 } 5813 Preconditions.checkNotNull(who, "ComponentName is null"); 5814 final int userHandle = UserHandle.getCallingUserId(); 5815 synchronized (this) { 5816 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5817 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5818 if (ap.disableScreenCapture != disabled) { 5819 ap.disableScreenCapture = disabled; 5820 saveSettingsLocked(userHandle); 5821 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 5822 } 5823 } 5824 } 5825 5826 /** 5827 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 5828 * active admin (if given admin is null). 5829 */ 5830 @Override 5831 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 5832 if (!mHasFeature) { 5833 return false; 5834 } 5835 synchronized (this) { 5836 if (who != null) { 5837 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5838 return (admin != null) ? admin.disableScreenCapture : false; 5839 } 5840 5841 DevicePolicyData policy = getUserData(userHandle); 5842 final int N = policy.mAdminList.size(); 5843 for (int i = 0; i < N; i++) { 5844 ActiveAdmin admin = policy.mAdminList.get(i); 5845 if (admin.disableScreenCapture) { 5846 return true; 5847 } 5848 } 5849 return false; 5850 } 5851 } 5852 5853 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 5854 final boolean disabled) { 5855 mHandler.post(new Runnable() { 5856 @Override 5857 public void run() { 5858 try { 5859 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 5860 } catch (RemoteException e) { 5861 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 5862 } 5863 } 5864 }); 5865 } 5866 5867 /** 5868 * Set whether auto time is required by the specified admin (must be device or profile owner). 5869 */ 5870 @Override 5871 public void setAutoTimeRequired(ComponentName who, boolean required) { 5872 if (!mHasFeature) { 5873 return; 5874 } 5875 Preconditions.checkNotNull(who, "ComponentName is null"); 5876 final int userHandle = UserHandle.getCallingUserId(); 5877 synchronized (this) { 5878 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5879 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5880 if (admin.requireAutoTime != required) { 5881 admin.requireAutoTime = required; 5882 saveSettingsLocked(userHandle); 5883 } 5884 } 5885 5886 // Turn AUTO_TIME on in settings if it is required 5887 if (required) { 5888 long ident = mInjector.binderClearCallingIdentity(); 5889 try { 5890 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 5891 } finally { 5892 mInjector.binderRestoreCallingIdentity(ident); 5893 } 5894 } 5895 } 5896 5897 /** 5898 * Returns whether or not auto time is required by the device owner or any profile owner. 5899 */ 5900 @Override 5901 public boolean getAutoTimeRequired() { 5902 if (!mHasFeature) { 5903 return false; 5904 } 5905 synchronized (this) { 5906 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5907 if (deviceOwner != null && deviceOwner.requireAutoTime) { 5908 // If the device owner enforces auto time, we don't need to check the PO's 5909 return true; 5910 } 5911 5912 // Now check to see if any profile owner on any user enforces auto time 5913 for (Integer userId : mOwners.getProfileOwnerKeys()) { 5914 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 5915 if (profileOwner != null && profileOwner.requireAutoTime) { 5916 return true; 5917 } 5918 } 5919 5920 return false; 5921 } 5922 } 5923 5924 @Override 5925 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 5926 if (!mHasFeature) { 5927 return; 5928 } 5929 Preconditions.checkNotNull(who, "ComponentName is null"); 5930 // Allow setting this policy to true only if there is a split system user. 5931 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 5932 throw new UnsupportedOperationException( 5933 "Cannot force ephemeral users on systems without split system user."); 5934 } 5935 boolean removeAllUsers = false; 5936 synchronized (this) { 5937 final ActiveAdmin deviceOwner = 5938 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5939 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 5940 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 5941 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 5942 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 5943 removeAllUsers = forceEphemeralUsers; 5944 } 5945 } 5946 if (removeAllUsers) { 5947 long identitity = mInjector.binderClearCallingIdentity(); 5948 try { 5949 mUserManagerInternal.removeAllUsers(); 5950 } finally { 5951 mInjector.binderRestoreCallingIdentity(identitity); 5952 } 5953 } 5954 } 5955 5956 @Override 5957 public boolean getForceEphemeralUsers(ComponentName who) { 5958 if (!mHasFeature) { 5959 return false; 5960 } 5961 Preconditions.checkNotNull(who, "ComponentName is null"); 5962 synchronized (this) { 5963 final ActiveAdmin deviceOwner = 5964 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5965 return deviceOwner.forceEphemeralUsers; 5966 } 5967 } 5968 5969 private void ensureDeviceOwnerAndAllUsersAffiliated(ComponentName who) throws SecurityException { 5970 synchronized (this) { 5971 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5972 if (!areAllUsersAffiliatedWithDeviceLocked()) { 5973 throw new SecurityException("Not all users are affiliated."); 5974 } 5975 } 5976 } 5977 5978 @Override 5979 public boolean requestBugreport(ComponentName who) { 5980 if (!mHasFeature) { 5981 return false; 5982 } 5983 Preconditions.checkNotNull(who, "ComponentName is null"); 5984 5985 // TODO: If an unaffiliated user is removed, the admin will be able to request a bugreport 5986 // which could still contain data related to that user. Should we disallow that, e.g. until 5987 // next boot? Might not be needed given that this still requires user consent. 5988 ensureDeviceOwnerAndAllUsersAffiliated(who); 5989 5990 if (mRemoteBugreportServiceIsActive.get() 5991 || (getDeviceOwnerRemoteBugreportUri() != null)) { 5992 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 5993 return false; 5994 } 5995 5996 final long currentTime = System.currentTimeMillis(); 5997 synchronized (this) { 5998 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 5999 if (currentTime > policyData.mLastBugReportRequestTime) { 6000 policyData.mLastBugReportRequestTime = currentTime; 6001 saveSettingsLocked(UserHandle.USER_SYSTEM); 6002 } 6003 } 6004 6005 final long callingIdentity = mInjector.binderClearCallingIdentity(); 6006 try { 6007 mInjector.getIActivityManager().requestBugReport( 6008 ActivityManager.BUGREPORT_OPTION_REMOTE); 6009 6010 mRemoteBugreportServiceIsActive.set(true); 6011 mRemoteBugreportSharingAccepted.set(false); 6012 registerRemoteBugreportReceivers(); 6013 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 6014 RemoteBugreportUtils.NOTIFICATION_ID, 6015 RemoteBugreportUtils.buildNotification(mContext, 6016 DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL); 6017 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 6018 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 6019 return true; 6020 } catch (RemoteException re) { 6021 // should never happen 6022 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 6023 return false; 6024 } finally { 6025 mInjector.binderRestoreCallingIdentity(callingIdentity); 6026 } 6027 } 6028 6029 synchronized void sendDeviceOwnerCommand(String action, Bundle extras) { 6030 Intent intent = new Intent(action); 6031 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6032 if (extras != null) { 6033 intent.putExtras(extras); 6034 } 6035 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6036 } 6037 6038 private synchronized String getDeviceOwnerRemoteBugreportUri() { 6039 return mOwners.getDeviceOwnerRemoteBugreportUri(); 6040 } 6041 6042 private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 6043 String bugreportHash) { 6044 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 6045 } 6046 6047 private void registerRemoteBugreportReceivers() { 6048 try { 6049 IntentFilter filterFinished = new IntentFilter( 6050 DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH, 6051 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6052 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 6053 } catch (IntentFilter.MalformedMimeTypeException e) { 6054 // should never happen, as setting a constant 6055 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 6056 } 6057 IntentFilter filterConsent = new IntentFilter(); 6058 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 6059 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 6060 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 6061 } 6062 6063 private void onBugreportFinished(Intent intent) { 6064 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6065 mRemoteBugreportServiceIsActive.set(false); 6066 Uri bugreportUri = intent.getData(); 6067 String bugreportUriString = null; 6068 if (bugreportUri != null) { 6069 bugreportUriString = bugreportUri.toString(); 6070 } 6071 String bugreportHash = intent.getStringExtra( 6072 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH); 6073 if (mRemoteBugreportSharingAccepted.get()) { 6074 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6075 mInjector.getNotificationManager().cancel(LOG_TAG, 6076 RemoteBugreportUtils.NOTIFICATION_ID); 6077 } else { 6078 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 6079 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6080 RemoteBugreportUtils.buildNotification(mContext, 6081 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 6082 UserHandle.ALL); 6083 } 6084 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6085 } 6086 6087 private void onBugreportFailed() { 6088 mRemoteBugreportServiceIsActive.set(false); 6089 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6090 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6091 mRemoteBugreportSharingAccepted.set(false); 6092 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6093 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 6094 Bundle extras = new Bundle(); 6095 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6096 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 6097 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6098 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 6099 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6100 } 6101 6102 private void onBugreportSharingAccepted() { 6103 mRemoteBugreportSharingAccepted.set(true); 6104 String bugreportUriString = null; 6105 String bugreportHash = null; 6106 synchronized (this) { 6107 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 6108 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 6109 } 6110 if (bugreportUriString != null) { 6111 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6112 } else if (mRemoteBugreportServiceIsActive.get()) { 6113 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6114 RemoteBugreportUtils.buildNotification(mContext, 6115 DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED), 6116 UserHandle.ALL); 6117 } 6118 } 6119 6120 private void onBugreportSharingDeclined() { 6121 if (mRemoteBugreportServiceIsActive.get()) { 6122 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6123 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6124 mRemoteBugreportServiceIsActive.set(false); 6125 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6126 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6127 } 6128 mRemoteBugreportSharingAccepted.set(false); 6129 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6130 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 6131 } 6132 6133 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 6134 String bugreportHash) { 6135 ParcelFileDescriptor pfd = null; 6136 try { 6137 if (bugreportUriString == null) { 6138 throw new FileNotFoundException(); 6139 } 6140 Uri bugreportUri = Uri.parse(bugreportUriString); 6141 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 6142 6143 synchronized (this) { 6144 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 6145 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6146 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6147 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 6148 intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 6149 6150 LocalServices.getService(ActivityManagerInternal.class) 6151 .grantUriPermissionFromIntent(Process.SHELL_UID, 6152 mOwners.getDeviceOwnerComponent().getPackageName(), 6153 intent, mOwners.getDeviceOwnerUserId()); 6154 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6155 } 6156 } catch (FileNotFoundException e) { 6157 Bundle extras = new Bundle(); 6158 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6159 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 6160 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6161 } finally { 6162 try { 6163 if (pfd != null) { 6164 pfd.close(); 6165 } 6166 } catch (IOException ex) { 6167 // Ignore 6168 } 6169 mRemoteBugreportSharingAccepted.set(false); 6170 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6171 } 6172 } 6173 6174 /** 6175 * Disables all device cameras according to the specified admin. 6176 */ 6177 @Override 6178 public void setCameraDisabled(ComponentName who, boolean disabled) { 6179 if (!mHasFeature) { 6180 return; 6181 } 6182 Preconditions.checkNotNull(who, "ComponentName is null"); 6183 final int userHandle = mInjector.userHandleGetCallingUserId(); 6184 synchronized (this) { 6185 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6186 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 6187 if (ap.disableCamera != disabled) { 6188 ap.disableCamera = disabled; 6189 saveSettingsLocked(userHandle); 6190 } 6191 } 6192 // Tell the user manager that the restrictions have changed. 6193 pushUserRestrictions(userHandle); 6194 } 6195 6196 /** 6197 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 6198 * active admins. 6199 */ 6200 @Override 6201 public boolean getCameraDisabled(ComponentName who, int userHandle) { 6202 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 6203 } 6204 6205 private boolean getCameraDisabled(ComponentName who, int userHandle, 6206 boolean mergeDeviceOwnerRestriction) { 6207 if (!mHasFeature) { 6208 return false; 6209 } 6210 synchronized (this) { 6211 if (who != null) { 6212 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6213 return (admin != null) ? admin.disableCamera : false; 6214 } 6215 // First, see if DO has set it. If so, it's device-wide. 6216 if (mergeDeviceOwnerRestriction) { 6217 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6218 if (deviceOwner != null && deviceOwner.disableCamera) { 6219 return true; 6220 } 6221 } 6222 6223 // Then check each device admin on the user. 6224 DevicePolicyData policy = getUserData(userHandle); 6225 // Determine whether or not the device camera is disabled for any active admins. 6226 final int N = policy.mAdminList.size(); 6227 for (int i = 0; i < N; i++) { 6228 ActiveAdmin admin = policy.mAdminList.get(i); 6229 if (admin.disableCamera) { 6230 return true; 6231 } 6232 } 6233 return false; 6234 } 6235 } 6236 6237 @Override 6238 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 6239 if (!mHasFeature) { 6240 return; 6241 } 6242 Preconditions.checkNotNull(who, "ComponentName is null"); 6243 final int userHandle = mInjector.userHandleGetCallingUserId(); 6244 if (isManagedProfile(userHandle)) { 6245 if (parent) { 6246 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 6247 } else { 6248 which = which & PROFILE_KEYGUARD_FEATURES; 6249 } 6250 } 6251 synchronized (this) { 6252 ActiveAdmin ap = getActiveAdminForCallerLocked( 6253 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 6254 if (ap.disabledKeyguardFeatures != which) { 6255 ap.disabledKeyguardFeatures = which; 6256 saveSettingsLocked(userHandle); 6257 } 6258 } 6259 } 6260 6261 /** 6262 * Gets the disabled state for features in keyguard for the given admin, 6263 * or the aggregate of all active admins if who is null. 6264 */ 6265 @Override 6266 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 6267 if (!mHasFeature) { 6268 return 0; 6269 } 6270 enforceFullCrossUsersPermission(userHandle); 6271 final long ident = mInjector.binderClearCallingIdentity(); 6272 try { 6273 synchronized (this) { 6274 if (who != null) { 6275 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 6276 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 6277 } 6278 6279 final List<ActiveAdmin> admins; 6280 if (!parent && isManagedProfile(userHandle)) { 6281 // If we are being asked about a managed profile, just return keyguard features 6282 // disabled by admins in the profile. 6283 admins = getUserDataUnchecked(userHandle).mAdminList; 6284 } else { 6285 // Otherwise return those set by admins in the user and its profiles. 6286 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 6287 } 6288 6289 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 6290 final int N = admins.size(); 6291 for (int i = 0; i < N; i++) { 6292 ActiveAdmin admin = admins.get(i); 6293 int userId = admin.getUserHandle().getIdentifier(); 6294 boolean isRequestedUser = !parent && (userId == userHandle); 6295 if (isRequestedUser || !isManagedProfile(userId)) { 6296 // If we are being asked explicitly about this user 6297 // return all disabled features even if its a managed profile. 6298 which |= admin.disabledKeyguardFeatures; 6299 } else { 6300 // Otherwise a managed profile is only allowed to disable 6301 // some features on the parent user. 6302 which |= (admin.disabledKeyguardFeatures 6303 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 6304 } 6305 } 6306 return which; 6307 } 6308 } finally { 6309 mInjector.binderRestoreCallingIdentity(ident); 6310 } 6311 } 6312 6313 @Override 6314 public void setKeepUninstalledPackages(ComponentName who, String callerPackage, 6315 List<String> packageList) { 6316 if (!mHasFeature) { 6317 return; 6318 } 6319 Preconditions.checkNotNull(packageList, "packageList is null"); 6320 final int userHandle = UserHandle.getCallingUserId(); 6321 synchronized (this) { 6322 // Ensure the caller is a DO or a keep uninstalled packages delegate. 6323 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 6324 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 6325 // Get the device owner 6326 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6327 // Set list of packages to be kept even if uninstalled. 6328 deviceOwner.keepUninstalledPackages = packageList; 6329 // Save settings. 6330 saveSettingsLocked(userHandle); 6331 // Notify package manager. 6332 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 6333 } 6334 } 6335 6336 @Override 6337 public List<String> getKeepUninstalledPackages(ComponentName who, String callerPackage) { 6338 if (!mHasFeature) { 6339 return null; 6340 } 6341 // TODO In split system user mode, allow apps on user 0 to query the list 6342 synchronized (this) { 6343 // Ensure the caller is a DO or a keep uninstalled packages delegate. 6344 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 6345 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 6346 return getKeepUninstalledPackagesLocked(); 6347 } 6348 } 6349 6350 private List<String> getKeepUninstalledPackagesLocked() { 6351 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6352 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 6353 } 6354 6355 @Override 6356 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 6357 if (!mHasFeature) { 6358 return false; 6359 } 6360 if (admin == null 6361 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 6362 throw new IllegalArgumentException("Invalid component " + admin 6363 + " for device owner"); 6364 } 6365 final boolean hasIncompatibleAccountsOrNonAdb = 6366 hasIncompatibleAccountsOrNonAdbNoLock(userId, admin); 6367 synchronized (this) { 6368 enforceCanSetDeviceOwnerLocked(admin, userId, hasIncompatibleAccountsOrNonAdb); 6369 final ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(admin, userId); 6370 if (activeAdmin == null 6371 || getUserData(userId).mRemovingAdmins.contains(admin)) { 6372 throw new IllegalArgumentException("Not active admin: " + admin); 6373 } 6374 6375 // Shutting down backup manager service permanently. 6376 long ident = mInjector.binderClearCallingIdentity(); 6377 try { 6378 if (mInjector.getIBackupManager() != null) { 6379 mInjector.getIBackupManager() 6380 .setBackupServiceActive(UserHandle.USER_SYSTEM, false); 6381 } 6382 } catch (RemoteException e) { 6383 throw new IllegalStateException("Failed deactivating backup service.", e); 6384 } finally { 6385 mInjector.binderRestoreCallingIdentity(ident); 6386 } 6387 6388 if (isAdb()) { 6389 // Log device owner provisioning was started using adb. 6390 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_DEVICE_OWNER); 6391 } 6392 6393 mOwners.setDeviceOwner(admin, ownerName, userId); 6394 mOwners.writeDeviceOwner(); 6395 updateDeviceOwnerLocked(); 6396 setDeviceOwnerSystemPropertyLocked(); 6397 6398 final Set<String> restrictions = 6399 UserRestrictionsUtils.getDefaultEnabledForDeviceOwner(); 6400 if (!restrictions.isEmpty()) { 6401 for (String restriction : restrictions) { 6402 activeAdmin.ensureUserRestrictions().putBoolean(restriction, true); 6403 } 6404 activeAdmin.defaultEnabledRestrictionsAlreadySet.addAll(restrictions); 6405 Slog.i(LOG_TAG, "Enabled the following restrictions by default: " + restrictions); 6406 6407 saveUserRestrictionsLocked(userId); 6408 } 6409 6410 ident = mInjector.binderClearCallingIdentity(); 6411 try { 6412 // TODO Send to system too? 6413 mContext.sendBroadcastAsUser( 6414 new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED) 6415 .addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND), 6416 UserHandle.of(userId)); 6417 } finally { 6418 mInjector.binderRestoreCallingIdentity(ident); 6419 } 6420 Slog.i(LOG_TAG, "Device owner set: " + admin + " on user " + userId); 6421 return true; 6422 } 6423 } 6424 6425 @Override 6426 public boolean hasDeviceOwner() { 6427 enforceDeviceOwnerOrManageUsers(); 6428 return mOwners.hasDeviceOwner(); 6429 } 6430 6431 boolean isDeviceOwner(ActiveAdmin admin) { 6432 return isDeviceOwner(admin.info.getComponent(), admin.getUserHandle().getIdentifier()); 6433 } 6434 6435 public boolean isDeviceOwner(ComponentName who, int userId) { 6436 synchronized (this) { 6437 return mOwners.hasDeviceOwner() 6438 && mOwners.getDeviceOwnerUserId() == userId 6439 && mOwners.getDeviceOwnerComponent().equals(who); 6440 } 6441 } 6442 6443 private boolean isDeviceOwnerPackage(String packageName, int userId) { 6444 synchronized (this) { 6445 return mOwners.hasDeviceOwner() 6446 && mOwners.getDeviceOwnerUserId() == userId 6447 && mOwners.getDeviceOwnerPackageName().equals(packageName); 6448 } 6449 } 6450 6451 private boolean isProfileOwnerPackage(String packageName, int userId) { 6452 synchronized (this) { 6453 return mOwners.hasProfileOwner(userId) 6454 && mOwners.getProfileOwnerPackage(userId).equals(packageName); 6455 } 6456 } 6457 6458 public boolean isProfileOwner(ComponentName who, int userId) { 6459 final ComponentName profileOwner = getProfileOwner(userId); 6460 return who != null && who.equals(profileOwner); 6461 } 6462 6463 @Override 6464 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 6465 if (!mHasFeature) { 6466 return null; 6467 } 6468 if (!callingUserOnly) { 6469 enforceManageUsers(); 6470 } 6471 synchronized (this) { 6472 if (!mOwners.hasDeviceOwner()) { 6473 return null; 6474 } 6475 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 6476 mOwners.getDeviceOwnerUserId()) { 6477 return null; 6478 } 6479 return mOwners.getDeviceOwnerComponent(); 6480 } 6481 } 6482 6483 @Override 6484 public int getDeviceOwnerUserId() { 6485 if (!mHasFeature) { 6486 return UserHandle.USER_NULL; 6487 } 6488 enforceManageUsers(); 6489 synchronized (this) { 6490 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 6491 } 6492 } 6493 6494 /** 6495 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 6496 * MANAGE_USERS. 6497 */ 6498 @Override 6499 public String getDeviceOwnerName() { 6500 if (!mHasFeature) { 6501 return null; 6502 } 6503 enforceManageUsers(); 6504 synchronized (this) { 6505 if (!mOwners.hasDeviceOwner()) { 6506 return null; 6507 } 6508 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 6509 // Should setDeviceOwner/ProfileOwner still take a name? 6510 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 6511 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 6512 } 6513 } 6514 6515 /** Returns the active device owner or {@code null} if there is no device owner. */ 6516 @VisibleForTesting 6517 ActiveAdmin getDeviceOwnerAdminLocked() { 6518 ComponentName component = mOwners.getDeviceOwnerComponent(); 6519 if (component == null) { 6520 return null; 6521 } 6522 6523 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 6524 final int n = policy.mAdminList.size(); 6525 for (int i = 0; i < n; i++) { 6526 ActiveAdmin admin = policy.mAdminList.get(i); 6527 if (component.equals(admin.info.getComponent())) { 6528 return admin; 6529 } 6530 } 6531 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 6532 return null; 6533 } 6534 6535 @Override 6536 public void clearDeviceOwner(String packageName) { 6537 Preconditions.checkNotNull(packageName, "packageName is null"); 6538 final int callingUid = mInjector.binderGetCallingUid(); 6539 try { 6540 int uid = mInjector.getPackageManager().getPackageUidAsUser(packageName, 6541 UserHandle.getUserId(callingUid)); 6542 if (uid != callingUid) { 6543 throw new SecurityException("Invalid packageName"); 6544 } 6545 } catch (NameNotFoundException e) { 6546 throw new SecurityException(e); 6547 } 6548 synchronized (this) { 6549 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 6550 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 6551 if (!mOwners.hasDeviceOwner() 6552 || !deviceOwnerComponent.getPackageName().equals(packageName) 6553 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 6554 throw new SecurityException( 6555 "clearDeviceOwner can only be called by the device owner"); 6556 } 6557 enforceUserUnlocked(deviceOwnerUserId); 6558 6559 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 6560 long ident = mInjector.binderClearCallingIdentity(); 6561 try { 6562 clearDeviceOwnerLocked(admin, deviceOwnerUserId); 6563 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 6564 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 6565 intent.addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); 6566 mContext.sendBroadcastAsUser(intent, UserHandle.of(deviceOwnerUserId)); 6567 } finally { 6568 mInjector.binderRestoreCallingIdentity(ident); 6569 } 6570 Slog.i(LOG_TAG, "Device owner removed: " + deviceOwnerComponent); 6571 } 6572 } 6573 6574 private void clearDeviceOwnerLocked(ActiveAdmin admin, int userId) { 6575 if (admin != null) { 6576 admin.disableCamera = false; 6577 admin.userRestrictions = null; 6578 admin.defaultEnabledRestrictionsAlreadySet.clear(); 6579 admin.forceEphemeralUsers = false; 6580 admin.isNetworkLoggingEnabled = false; 6581 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 6582 } 6583 final DevicePolicyData policyData = getUserData(userId); 6584 policyData.mDefaultInputMethodSet = false; 6585 saveSettingsLocked(userId); 6586 final DevicePolicyData systemPolicyData = getUserData(UserHandle.USER_SYSTEM); 6587 systemPolicyData.mLastSecurityLogRetrievalTime = -1; 6588 systemPolicyData.mLastBugReportRequestTime = -1; 6589 systemPolicyData.mLastNetworkLogsRetrievalTime = -1; 6590 saveSettingsLocked(UserHandle.USER_SYSTEM); 6591 clearUserPoliciesLocked(userId); 6592 6593 mOwners.clearDeviceOwner(); 6594 mOwners.writeDeviceOwner(); 6595 updateDeviceOwnerLocked(); 6596 6597 clearDeviceOwnerUserRestrictionLocked(UserHandle.of(userId)); 6598 mInjector.securityLogSetLoggingEnabledProperty(false); 6599 mSecurityLogMonitor.stop(); 6600 setNetworkLoggingActiveInternal(false); 6601 6602 try { 6603 if (mInjector.getIBackupManager() != null) { 6604 // Reactivate backup service. 6605 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 6606 } 6607 } catch (RemoteException e) { 6608 throw new IllegalStateException("Failed reactivating backup service.", e); 6609 } 6610 } 6611 6612 @Override 6613 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 6614 if (!mHasFeature) { 6615 return false; 6616 } 6617 if (who == null 6618 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 6619 throw new IllegalArgumentException("Component " + who 6620 + " not installed for userId:" + userHandle); 6621 } 6622 final boolean hasIncompatibleAccountsOrNonAdb = 6623 hasIncompatibleAccountsOrNonAdbNoLock(userHandle, who); 6624 synchronized (this) { 6625 enforceCanSetProfileOwnerLocked(who, userHandle, hasIncompatibleAccountsOrNonAdb); 6626 6627 if (getActiveAdminUncheckedLocked(who, userHandle) == null 6628 || getUserData(userHandle).mRemovingAdmins.contains(who)) { 6629 throw new IllegalArgumentException("Not active admin: " + who); 6630 } 6631 6632 if (isAdb()) { 6633 // Log profile owner provisioning was started using adb. 6634 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_PROFILE_OWNER); 6635 } 6636 6637 mOwners.setProfileOwner(who, ownerName, userHandle); 6638 mOwners.writeProfileOwner(userHandle); 6639 Slog.i(LOG_TAG, "Profile owner set: " + who + " on user " + userHandle); 6640 6641 return true; 6642 } 6643 } 6644 6645 @Override 6646 public void clearProfileOwner(ComponentName who) { 6647 if (!mHasFeature) { 6648 return; 6649 } 6650 Preconditions.checkNotNull(who, "ComponentName is null"); 6651 6652 final int userId = mInjector.userHandleGetCallingUserId(); 6653 enforceNotManagedProfile(userId, "clear profile owner"); 6654 enforceUserUnlocked(userId); 6655 synchronized (this) { 6656 // Check if this is the profile owner who is calling 6657 final ActiveAdmin admin = 6658 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6659 6660 final long ident = mInjector.binderClearCallingIdentity(); 6661 try { 6662 clearProfileOwnerLocked(admin, userId); 6663 removeActiveAdminLocked(who, userId); 6664 } finally { 6665 mInjector.binderRestoreCallingIdentity(ident); 6666 } 6667 Slog.i(LOG_TAG, "Profile owner " + who + " removed from user " + userId); 6668 } 6669 } 6670 6671 public void clearProfileOwnerLocked(ActiveAdmin admin, int userId) { 6672 if (admin != null) { 6673 admin.disableCamera = false; 6674 admin.userRestrictions = null; 6675 admin.defaultEnabledRestrictionsAlreadySet.clear(); 6676 } 6677 final DevicePolicyData policyData = getUserData(userId); 6678 policyData.mDefaultInputMethodSet = false; 6679 saveSettingsLocked(userId); 6680 clearUserPoliciesLocked(userId); 6681 mOwners.removeProfileOwner(userId); 6682 mOwners.writeProfileOwner(userId); 6683 } 6684 6685 @Override 6686 public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) { 6687 Preconditions.checkNotNull(who, "ComponentName is null"); 6688 if (!mHasFeature) { 6689 return; 6690 } 6691 6692 synchronized (this) { 6693 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6694 long token = mInjector.binderClearCallingIdentity(); 6695 try { 6696 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null); 6697 } finally { 6698 mInjector.binderRestoreCallingIdentity(token); 6699 } 6700 } 6701 } 6702 6703 @Override 6704 public CharSequence getDeviceOwnerLockScreenInfo() { 6705 return mLockPatternUtils.getDeviceOwnerInfo(); 6706 } 6707 6708 private void clearUserPoliciesLocked(int userId) { 6709 // Reset some of the user-specific policies. 6710 final DevicePolicyData policy = getUserData(userId); 6711 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 6712 // Clear delegations. 6713 policy.mDelegationMap.clear(); 6714 policy.mStatusBarDisabled = false; 6715 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 6716 policy.mAffiliationIds.clear(); 6717 policy.mLockTaskPackages.clear(); 6718 saveSettingsLocked(userId); 6719 6720 try { 6721 mIPackageManager.updatePermissionFlagsForAllApps( 6722 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6723 0 /* flagValues */, userId); 6724 pushUserRestrictions(userId); 6725 } catch (RemoteException re) { 6726 // Shouldn't happen. 6727 } 6728 } 6729 6730 @Override 6731 public boolean hasUserSetupCompleted() { 6732 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 6733 } 6734 6735 // This checks only if the Setup Wizard has run. Since Wear devices pair before 6736 // completing Setup Wizard, and pairing involves transferring user data, calling 6737 // logic may want to check mIsWatch or mPaired in addition to hasUserSetupCompleted(). 6738 private boolean hasUserSetupCompleted(int userHandle) { 6739 if (!mHasFeature) { 6740 return true; 6741 } 6742 return getUserData(userHandle).mUserSetupComplete; 6743 } 6744 6745 private boolean hasPaired(int userHandle) { 6746 if (!mHasFeature) { 6747 return true; 6748 } 6749 return getUserData(userHandle).mPaired; 6750 } 6751 6752 @Override 6753 public int getUserProvisioningState() { 6754 if (!mHasFeature) { 6755 return DevicePolicyManager.STATE_USER_UNMANAGED; 6756 } 6757 int userHandle = mInjector.userHandleGetCallingUserId(); 6758 return getUserProvisioningState(userHandle); 6759 } 6760 6761 private int getUserProvisioningState(int userHandle) { 6762 return getUserData(userHandle).mUserProvisioningState; 6763 } 6764 6765 @Override 6766 public void setUserProvisioningState(int newState, int userHandle) { 6767 if (!mHasFeature) { 6768 return; 6769 } 6770 6771 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 6772 && getManagedUserId(userHandle) == -1) { 6773 // No managed device, user or profile, so setting provisioning state makes no sense. 6774 throw new IllegalStateException("Not allowed to change provisioning state unless a " 6775 + "device or profile owner is set."); 6776 } 6777 6778 synchronized (this) { 6779 boolean transitionCheckNeeded = true; 6780 6781 // Calling identity/permission checks. 6782 if (isAdb()) { 6783 // ADB shell can only move directly from un-managed to finalized as part of directly 6784 // setting profile-owner or device-owner. 6785 if (getUserProvisioningState(userHandle) != 6786 DevicePolicyManager.STATE_USER_UNMANAGED 6787 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6788 throw new IllegalStateException("Not allowed to change provisioning state " 6789 + "unless current provisioning state is unmanaged, and new state is " 6790 + "finalized."); 6791 } 6792 transitionCheckNeeded = false; 6793 } else { 6794 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 6795 enforceCanManageProfileAndDeviceOwners(); 6796 } 6797 6798 final DevicePolicyData policyData = getUserData(userHandle); 6799 if (transitionCheckNeeded) { 6800 // Optional state transition check for non-ADB case. 6801 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 6802 } 6803 policyData.mUserProvisioningState = newState; 6804 saveSettingsLocked(userHandle); 6805 } 6806 } 6807 6808 private void checkUserProvisioningStateTransition(int currentState, int newState) { 6809 // Valid transitions for normal use-cases. 6810 switch (currentState) { 6811 case DevicePolicyManager.STATE_USER_UNMANAGED: 6812 // Can move to any state from unmanaged (except itself as an edge case).. 6813 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 6814 return; 6815 } 6816 break; 6817 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 6818 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 6819 // Can only move to finalized from these states. 6820 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6821 return; 6822 } 6823 break; 6824 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 6825 // Current user has a managed-profile, but current user is not managed, so 6826 // rather than moving to finalized state, go back to unmanaged once 6827 // profile provisioning is complete. 6828 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 6829 return; 6830 } 6831 break; 6832 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 6833 // Cannot transition out of finalized. 6834 break; 6835 } 6836 6837 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 6838 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 6839 + "from state [" + currentState + "]"); 6840 } 6841 6842 @Override 6843 public void setProfileEnabled(ComponentName who) { 6844 if (!mHasFeature) { 6845 return; 6846 } 6847 Preconditions.checkNotNull(who, "ComponentName is null"); 6848 synchronized (this) { 6849 // Check if this is the profile owner who is calling 6850 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6851 final int userId = UserHandle.getCallingUserId(); 6852 enforceManagedProfile(userId, "enable the profile"); 6853 // Check if the profile is already enabled. 6854 UserInfo managedProfile = getUserInfo(userId); 6855 if (managedProfile.isEnabled()) { 6856 Slog.e(LOG_TAG, 6857 "setProfileEnabled is called when the profile is already enabled"); 6858 return; 6859 } 6860 long id = mInjector.binderClearCallingIdentity(); 6861 try { 6862 mUserManager.setUserEnabled(userId); 6863 UserInfo parent = mUserManager.getProfileParent(userId); 6864 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 6865 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 6866 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 6867 Intent.FLAG_RECEIVER_FOREGROUND); 6868 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 6869 } finally { 6870 mInjector.binderRestoreCallingIdentity(id); 6871 } 6872 } 6873 } 6874 6875 @Override 6876 public void setProfileName(ComponentName who, String profileName) { 6877 Preconditions.checkNotNull(who, "ComponentName is null"); 6878 int userId = UserHandle.getCallingUserId(); 6879 // Check if this is the profile owner (includes device owner). 6880 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6881 6882 long id = mInjector.binderClearCallingIdentity(); 6883 try { 6884 mUserManager.setUserName(userId, profileName); 6885 } finally { 6886 mInjector.binderRestoreCallingIdentity(id); 6887 } 6888 } 6889 6890 @Override 6891 public ComponentName getProfileOwner(int userHandle) { 6892 if (!mHasFeature) { 6893 return null; 6894 } 6895 6896 synchronized (this) { 6897 return mOwners.getProfileOwnerComponent(userHandle); 6898 } 6899 } 6900 6901 // Returns the active profile owner for this user or null if the current user has no 6902 // profile owner. 6903 @VisibleForTesting 6904 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 6905 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 6906 if (profileOwner == null) { 6907 return null; 6908 } 6909 DevicePolicyData policy = getUserData(userHandle); 6910 final int n = policy.mAdminList.size(); 6911 for (int i = 0; i < n; i++) { 6912 ActiveAdmin admin = policy.mAdminList.get(i); 6913 if (profileOwner.equals(admin.info.getComponent())) { 6914 return admin; 6915 } 6916 } 6917 return null; 6918 } 6919 6920 @Override 6921 public String getProfileOwnerName(int userHandle) { 6922 if (!mHasFeature) { 6923 return null; 6924 } 6925 enforceManageUsers(); 6926 ComponentName profileOwner = getProfileOwner(userHandle); 6927 if (profileOwner == null) { 6928 return null; 6929 } 6930 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 6931 } 6932 6933 /** 6934 * Canonical name for a given package. 6935 */ 6936 private String getApplicationLabel(String packageName, int userHandle) { 6937 long token = mInjector.binderClearCallingIdentity(); 6938 try { 6939 final Context userContext; 6940 try { 6941 UserHandle handle = new UserHandle(userHandle); 6942 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 6943 } catch (PackageManager.NameNotFoundException nnfe) { 6944 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 6945 return null; 6946 } 6947 ApplicationInfo appInfo = userContext.getApplicationInfo(); 6948 CharSequence result = null; 6949 if (appInfo != null) { 6950 PackageManager pm = userContext.getPackageManager(); 6951 result = pm.getApplicationLabel(appInfo); 6952 } 6953 return result != null ? result.toString() : null; 6954 } finally { 6955 mInjector.binderRestoreCallingIdentity(token); 6956 } 6957 } 6958 6959 /** 6960 * Calls wtfStack() if called with the DPMS lock held. 6961 */ 6962 private void wtfIfInLock() { 6963 if (Thread.holdsLock(this)) { 6964 Slog.wtfStack(LOG_TAG, "Shouldn't be called with DPMS lock held"); 6965 } 6966 } 6967 6968 /** 6969 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 6970 * permission. 6971 * The profile owner can only be set before the user setup phase has completed, 6972 * except for: 6973 * - SYSTEM_UID 6974 * - adb unless hasIncompatibleAccountsOrNonAdb is true. 6975 */ 6976 private void enforceCanSetProfileOwnerLocked(@Nullable ComponentName owner, int userHandle, 6977 boolean hasIncompatibleAccountsOrNonAdb) { 6978 UserInfo info = getUserInfo(userHandle); 6979 if (info == null) { 6980 // User doesn't exist. 6981 throw new IllegalArgumentException( 6982 "Attempted to set profile owner for invalid userId: " + userHandle); 6983 } 6984 if (info.isGuest()) { 6985 throw new IllegalStateException("Cannot set a profile owner on a guest"); 6986 } 6987 if (mOwners.hasProfileOwner(userHandle)) { 6988 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 6989 + "is already set."); 6990 } 6991 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 6992 throw new IllegalStateException("Trying to set the profile owner, but the user " 6993 + "already has a device owner."); 6994 } 6995 if (isAdb()) { 6996 if ((mIsWatch || hasUserSetupCompleted(userHandle)) 6997 && hasIncompatibleAccountsOrNonAdb) { 6998 throw new IllegalStateException("Not allowed to set the profile owner because " 6999 + "there are already some accounts on the profile"); 7000 } 7001 return; 7002 } 7003 enforceCanManageProfileAndDeviceOwners(); 7004 if ((mIsWatch || hasUserSetupCompleted(userHandle)) && !isCallerWithSystemUid()) { 7005 throw new IllegalStateException("Cannot set the profile owner on a user which is " 7006 + "already set-up"); 7007 } 7008 } 7009 7010 /** 7011 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7012 * permission. 7013 */ 7014 private void enforceCanSetDeviceOwnerLocked(@Nullable ComponentName owner, int userId, 7015 boolean hasIncompatibleAccountsOrNonAdb) { 7016 if (!isAdb()) { 7017 enforceCanManageProfileAndDeviceOwners(); 7018 } 7019 7020 final int code = checkDeviceOwnerProvisioningPreConditionLocked( 7021 owner, userId, isAdb(), hasIncompatibleAccountsOrNonAdb); 7022 switch (code) { 7023 case CODE_OK: 7024 return; 7025 case CODE_HAS_DEVICE_OWNER: 7026 throw new IllegalStateException( 7027 "Trying to set the device owner, but device owner is already set."); 7028 case CODE_USER_HAS_PROFILE_OWNER: 7029 throw new IllegalStateException("Trying to set the device owner, but the user " 7030 + "already has a profile owner."); 7031 case CODE_USER_NOT_RUNNING: 7032 throw new IllegalStateException("User not running: " + userId); 7033 case CODE_NOT_SYSTEM_USER: 7034 throw new IllegalStateException("User is not system user"); 7035 case CODE_USER_SETUP_COMPLETED: 7036 throw new IllegalStateException( 7037 "Cannot set the device owner if the device is already set-up"); 7038 case CODE_NONSYSTEM_USER_EXISTS: 7039 throw new IllegalStateException("Not allowed to set the device owner because there " 7040 + "are already several users on the device"); 7041 case CODE_ACCOUNTS_NOT_EMPTY: 7042 throw new IllegalStateException("Not allowed to set the device owner because there " 7043 + "are already some accounts on the device"); 7044 case CODE_HAS_PAIRED: 7045 throw new IllegalStateException("Not allowed to set the device owner because this " 7046 + "device has already paired"); 7047 default: 7048 throw new IllegalStateException("Unexpected @ProvisioningPreCondition " + code); 7049 } 7050 } 7051 7052 private void enforceUserUnlocked(int userId) { 7053 // Since we're doing this operation on behalf of an app, we only 7054 // want to use the actual "unlocked" state. 7055 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 7056 "User must be running and unlocked"); 7057 } 7058 7059 private void enforceUserUnlocked(@UserIdInt int userId, boolean parent) { 7060 if (parent) { 7061 enforceUserUnlocked(getProfileParentId(userId)); 7062 } else { 7063 enforceUserUnlocked(userId); 7064 } 7065 } 7066 7067 private void enforceManageUsers() { 7068 final int callingUid = mInjector.binderGetCallingUid(); 7069 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 7070 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 7071 } 7072 } 7073 7074 private void enforceFullCrossUsersPermission(int userHandle) { 7075 enforceSystemUserOrPermission(userHandle, 7076 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 7077 } 7078 7079 private void enforceCrossUsersPermission(int userHandle) { 7080 enforceSystemUserOrPermission(userHandle, 7081 android.Manifest.permission.INTERACT_ACROSS_USERS); 7082 } 7083 7084 private void enforceSystemUserOrPermission(int userHandle, String permission) { 7085 if (userHandle < 0) { 7086 throw new IllegalArgumentException("Invalid userId " + userHandle); 7087 } 7088 final int callingUid = mInjector.binderGetCallingUid(); 7089 if (userHandle == UserHandle.getUserId(callingUid)) { 7090 return; 7091 } 7092 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 7093 mContext.enforceCallingOrSelfPermission(permission, 7094 "Must be system or have " + permission + " permission"); 7095 } 7096 } 7097 7098 private void enforceManagedProfile(int userHandle, String message) { 7099 if(!isManagedProfile(userHandle)) { 7100 throw new SecurityException("You can not " + message + " outside a managed profile."); 7101 } 7102 } 7103 7104 private void enforceNotManagedProfile(int userHandle, String message) { 7105 if(isManagedProfile(userHandle)) { 7106 throw new SecurityException("You can not " + message + " for a managed profile."); 7107 } 7108 } 7109 7110 private void enforceDeviceOwnerOrManageUsers() { 7111 synchronized (this) { 7112 if (getActiveAdminWithPolicyForUidLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 7113 mInjector.binderGetCallingUid()) != null) { 7114 return; 7115 } 7116 } 7117 enforceManageUsers(); 7118 } 7119 7120 private void enforceProfileOwnerOrSystemUser(ComponentName admin) { 7121 synchronized (this) { 7122 if (getActiveAdminWithPolicyForUidLocked(admin, 7123 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7124 != null) { 7125 return; 7126 } 7127 } 7128 Preconditions.checkState(isCallerWithSystemUid(), 7129 "Only profile owner, device owner and system may call this method."); 7130 } 7131 7132 private void ensureCallerPackage(@Nullable String packageName) { 7133 if (packageName == null) { 7134 Preconditions.checkState(isCallerWithSystemUid(), 7135 "Only caller can omit package name"); 7136 } else { 7137 final int callingUid = mInjector.binderGetCallingUid(); 7138 final int userId = mInjector.userHandleGetCallingUserId(); 7139 try { 7140 final ApplicationInfo ai = mIPackageManager.getApplicationInfo( 7141 packageName, 0, userId); 7142 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name"); 7143 } catch (RemoteException e) { 7144 // Shouldn't happen 7145 } 7146 } 7147 } 7148 7149 private boolean isCallerWithSystemUid() { 7150 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 7151 } 7152 7153 protected int getProfileParentId(int userHandle) { 7154 final long ident = mInjector.binderClearCallingIdentity(); 7155 try { 7156 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 7157 return parentUser != null ? parentUser.id : userHandle; 7158 } finally { 7159 mInjector.binderRestoreCallingIdentity(ident); 7160 } 7161 } 7162 7163 private int getCredentialOwner(int userHandle, boolean parent) { 7164 final long ident = mInjector.binderClearCallingIdentity(); 7165 try { 7166 if (parent) { 7167 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 7168 if (parentProfile != null) { 7169 userHandle = parentProfile.id; 7170 } 7171 } 7172 return mUserManager.getCredentialOwnerProfile(userHandle); 7173 } finally { 7174 mInjector.binderRestoreCallingIdentity(ident); 7175 } 7176 } 7177 7178 private boolean isManagedProfile(int userHandle) { 7179 final UserInfo user = getUserInfo(userHandle); 7180 return user != null && user.isManagedProfile(); 7181 } 7182 7183 private void enableIfNecessary(String packageName, int userId) { 7184 try { 7185 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 7186 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 7187 userId); 7188 if (ai.enabledSetting 7189 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 7190 mIPackageManager.setApplicationEnabledSetting(packageName, 7191 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 7192 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 7193 } 7194 } catch (RemoteException e) { 7195 } 7196 } 7197 7198 @Override 7199 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 7200 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 7201 != PackageManager.PERMISSION_GRANTED) { 7202 7203 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 7204 + mInjector.binderGetCallingPid() 7205 + ", uid=" + mInjector.binderGetCallingUid()); 7206 return; 7207 } 7208 7209 synchronized (this) { 7210 pw.println("Current Device Policy Manager state:"); 7211 mOwners.dump(" ", pw); 7212 int userCount = mUserData.size(); 7213 for (int u = 0; u < userCount; u++) { 7214 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 7215 pw.println(); 7216 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 7217 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 7218 final int N = policy.mAdminList.size(); 7219 for (int i=0; i<N; i++) { 7220 ActiveAdmin ap = policy.mAdminList.get(i); 7221 if (ap != null) { 7222 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 7223 pw.println(":"); 7224 ap.dump(" ", pw); 7225 } 7226 } 7227 if (!policy.mRemovingAdmins.isEmpty()) { 7228 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 7229 + policy.mRemovingAdmins); 7230 } 7231 7232 pw.println(" "); 7233 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 7234 } 7235 pw.println(); 7236 pw.println("Encryption Status: " + getEncryptionStatusName(getEncryptionStatus())); 7237 } 7238 } 7239 7240 private String getEncryptionStatusName(int encryptionStatus) { 7241 switch (encryptionStatus) { 7242 case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE: 7243 return "inactive"; 7244 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: 7245 return "block default key"; 7246 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE: 7247 return "block"; 7248 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER: 7249 return "per-user"; 7250 case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED: 7251 return "unsupported"; 7252 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING: 7253 return "activating"; 7254 default: 7255 return "unknown"; 7256 } 7257 } 7258 7259 @Override 7260 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 7261 ComponentName activity) { 7262 Preconditions.checkNotNull(who, "ComponentName is null"); 7263 final int userHandle = UserHandle.getCallingUserId(); 7264 synchronized (this) { 7265 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7266 7267 long id = mInjector.binderClearCallingIdentity(); 7268 try { 7269 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 7270 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 7271 } catch (RemoteException re) { 7272 // Shouldn't happen 7273 } finally { 7274 mInjector.binderRestoreCallingIdentity(id); 7275 } 7276 } 7277 } 7278 7279 @Override 7280 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 7281 Preconditions.checkNotNull(who, "ComponentName is null"); 7282 final int userHandle = UserHandle.getCallingUserId(); 7283 synchronized (this) { 7284 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7285 7286 long id = mInjector.binderClearCallingIdentity(); 7287 try { 7288 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 7289 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 7290 } catch (RemoteException re) { 7291 // Shouldn't happen 7292 } finally { 7293 mInjector.binderRestoreCallingIdentity(id); 7294 } 7295 } 7296 } 7297 7298 @Override 7299 public boolean setApplicationRestrictionsManagingPackage(ComponentName admin, 7300 String packageName) { 7301 try { 7302 setDelegatedScopePreO(admin, packageName, DELEGATION_APP_RESTRICTIONS); 7303 } catch (IllegalArgumentException e) { 7304 return false; 7305 } 7306 return true; 7307 } 7308 7309 @Override 7310 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 7311 final List<String> delegatePackages = getDelegatePackages(admin, 7312 DELEGATION_APP_RESTRICTIONS); 7313 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 7314 } 7315 7316 @Override 7317 public boolean isCallerApplicationRestrictionsManagingPackage(String callerPackage) { 7318 return isCallerDelegate(callerPackage, DELEGATION_APP_RESTRICTIONS); 7319 } 7320 7321 @Override 7322 public void setApplicationRestrictions(ComponentName who, String callerPackage, 7323 String packageName, Bundle settings) { 7324 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 7325 DELEGATION_APP_RESTRICTIONS); 7326 7327 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 7328 final long id = mInjector.binderClearCallingIdentity(); 7329 try { 7330 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 7331 } finally { 7332 mInjector.binderRestoreCallingIdentity(id); 7333 } 7334 } 7335 7336 @Override 7337 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 7338 PersistableBundle args, boolean parent) { 7339 if (!mHasFeature) { 7340 return; 7341 } 7342 Preconditions.checkNotNull(admin, "admin is null"); 7343 Preconditions.checkNotNull(agent, "agent is null"); 7344 final int userHandle = UserHandle.getCallingUserId(); 7345 synchronized (this) { 7346 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 7347 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 7348 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 7349 saveSettingsLocked(userHandle); 7350 } 7351 } 7352 7353 @Override 7354 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 7355 ComponentName agent, int userHandle, boolean parent) { 7356 if (!mHasFeature) { 7357 return null; 7358 } 7359 Preconditions.checkNotNull(agent, "agent null"); 7360 enforceFullCrossUsersPermission(userHandle); 7361 7362 synchronized (this) { 7363 final String componentName = agent.flattenToString(); 7364 if (admin != null) { 7365 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle, parent); 7366 if (ap == null) return null; 7367 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 7368 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 7369 List<PersistableBundle> result = new ArrayList<>(); 7370 result.add(trustAgentInfo.options); 7371 return result; 7372 } 7373 7374 // Return strictest policy for this user and profiles that are visible from this user. 7375 List<PersistableBundle> result = null; 7376 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 7377 // of the options. If any admin doesn't have options, discard options for the rest 7378 // and return null. 7379 List<ActiveAdmin> admins = 7380 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 7381 boolean allAdminsHaveOptions = true; 7382 final int N = admins.size(); 7383 for (int i = 0; i < N; i++) { 7384 final ActiveAdmin active = admins.get(i); 7385 7386 final boolean disablesTrust = (active.disabledKeyguardFeatures 7387 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 7388 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 7389 if (info != null && info.options != null && !info.options.isEmpty()) { 7390 if (disablesTrust) { 7391 if (result == null) { 7392 result = new ArrayList<>(); 7393 } 7394 result.add(info.options); 7395 } else { 7396 Log.w(LOG_TAG, "Ignoring admin " + active.info 7397 + " because it has trust options but doesn't declare " 7398 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 7399 } 7400 } else if (disablesTrust) { 7401 allAdminsHaveOptions = false; 7402 break; 7403 } 7404 } 7405 return allAdminsHaveOptions ? result : null; 7406 } 7407 } 7408 7409 @Override 7410 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 7411 Preconditions.checkNotNull(who, "ComponentName is null"); 7412 synchronized (this) { 7413 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7414 7415 int userHandle = UserHandle.getCallingUserId(); 7416 DevicePolicyData userData = getUserData(userHandle); 7417 userData.mRestrictionsProvider = permissionProvider; 7418 saveSettingsLocked(userHandle); 7419 } 7420 } 7421 7422 @Override 7423 public ComponentName getRestrictionsProvider(int userHandle) { 7424 synchronized (this) { 7425 if (!isCallerWithSystemUid()) { 7426 throw new SecurityException("Only the system can query the permission provider"); 7427 } 7428 DevicePolicyData userData = getUserData(userHandle); 7429 return userData != null ? userData.mRestrictionsProvider : null; 7430 } 7431 } 7432 7433 @Override 7434 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 7435 Preconditions.checkNotNull(who, "ComponentName is null"); 7436 int callingUserId = UserHandle.getCallingUserId(); 7437 synchronized (this) { 7438 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7439 7440 long id = mInjector.binderClearCallingIdentity(); 7441 try { 7442 UserInfo parent = mUserManager.getProfileParent(callingUserId); 7443 if (parent == null) { 7444 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 7445 + "parent"); 7446 return; 7447 } 7448 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 7449 mIPackageManager.addCrossProfileIntentFilter( 7450 filter, who.getPackageName(), callingUserId, parent.id, 0); 7451 } 7452 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 7453 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 7454 parent.id, callingUserId, 0); 7455 } 7456 } catch (RemoteException re) { 7457 // Shouldn't happen 7458 } finally { 7459 mInjector.binderRestoreCallingIdentity(id); 7460 } 7461 } 7462 } 7463 7464 @Override 7465 public void clearCrossProfileIntentFilters(ComponentName who) { 7466 Preconditions.checkNotNull(who, "ComponentName is null"); 7467 int callingUserId = UserHandle.getCallingUserId(); 7468 synchronized (this) { 7469 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7470 long id = mInjector.binderClearCallingIdentity(); 7471 try { 7472 UserInfo parent = mUserManager.getProfileParent(callingUserId); 7473 if (parent == null) { 7474 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 7475 + "parent"); 7476 return; 7477 } 7478 // Removing those that go from the managed profile to the parent. 7479 mIPackageManager.clearCrossProfileIntentFilters( 7480 callingUserId, who.getPackageName()); 7481 // And those that go from the parent to the managed profile. 7482 // If we want to support multiple managed profiles, we will have to only remove 7483 // those that have callingUserId as their target. 7484 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 7485 } catch (RemoteException re) { 7486 // Shouldn't happen 7487 } finally { 7488 mInjector.binderRestoreCallingIdentity(id); 7489 } 7490 } 7491 } 7492 7493 /** 7494 * @return true if all packages in enabledPackages are either in the list 7495 * permittedList or are a system app. 7496 */ 7497 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 7498 List<String> permittedList, int userIdToCheck) { 7499 long id = mInjector.binderClearCallingIdentity(); 7500 try { 7501 // If we have an enabled packages list for a managed profile the packages 7502 // we should check are installed for the parent user. 7503 UserInfo user = getUserInfo(userIdToCheck); 7504 if (user.isManagedProfile()) { 7505 userIdToCheck = user.profileGroupId; 7506 } 7507 7508 for (String enabledPackage : enabledPackages) { 7509 boolean systemService = false; 7510 try { 7511 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 7512 enabledPackage, PackageManager.MATCH_UNINSTALLED_PACKAGES, 7513 userIdToCheck); 7514 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 7515 } catch (RemoteException e) { 7516 Log.i(LOG_TAG, "Can't talk to package managed", e); 7517 } 7518 if (!systemService && !permittedList.contains(enabledPackage)) { 7519 return false; 7520 } 7521 } 7522 } finally { 7523 mInjector.binderRestoreCallingIdentity(id); 7524 } 7525 return true; 7526 } 7527 7528 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 7529 // Not using AccessibilityManager.getInstance because that guesses 7530 // at the user you require based on callingUid and caches for a given 7531 // process. 7532 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 7533 IAccessibilityManager service = iBinder == null 7534 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 7535 return new AccessibilityManager(mContext, service, userId); 7536 } 7537 7538 @Override 7539 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 7540 if (!mHasFeature) { 7541 return false; 7542 } 7543 Preconditions.checkNotNull(who, "ComponentName is null"); 7544 7545 if (packageList != null) { 7546 int userId = UserHandle.getCallingUserId(); 7547 List<AccessibilityServiceInfo> enabledServices = null; 7548 long id = mInjector.binderClearCallingIdentity(); 7549 try { 7550 UserInfo user = getUserInfo(userId); 7551 if (user.isManagedProfile()) { 7552 userId = user.profileGroupId; 7553 } 7554 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 7555 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 7556 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 7557 } finally { 7558 mInjector.binderRestoreCallingIdentity(id); 7559 } 7560 7561 if (enabledServices != null) { 7562 List<String> enabledPackages = new ArrayList<String>(); 7563 for (AccessibilityServiceInfo service : enabledServices) { 7564 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 7565 } 7566 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7567 userId)) { 7568 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 7569 + "because it contains already enabled accesibility services."); 7570 return false; 7571 } 7572 } 7573 } 7574 7575 synchronized (this) { 7576 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7577 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7578 admin.permittedAccessiblityServices = packageList; 7579 saveSettingsLocked(UserHandle.getCallingUserId()); 7580 } 7581 return true; 7582 } 7583 7584 @Override 7585 public List getPermittedAccessibilityServices(ComponentName who) { 7586 if (!mHasFeature) { 7587 return null; 7588 } 7589 Preconditions.checkNotNull(who, "ComponentName is null"); 7590 7591 synchronized (this) { 7592 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7593 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7594 return admin.permittedAccessiblityServices; 7595 } 7596 } 7597 7598 @Override 7599 public List getPermittedAccessibilityServicesForUser(int userId) { 7600 if (!mHasFeature) { 7601 return null; 7602 } 7603 synchronized (this) { 7604 List<String> result = null; 7605 // If we have multiple profiles we return the intersection of the 7606 // permitted lists. This can happen in cases where we have a device 7607 // and profile owner. 7608 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 7609 for (int profileId : profileIds) { 7610 // Just loop though all admins, only device or profiles 7611 // owners can have permitted lists set. 7612 DevicePolicyData policy = getUserDataUnchecked(profileId); 7613 final int N = policy.mAdminList.size(); 7614 for (int j = 0; j < N; j++) { 7615 ActiveAdmin admin = policy.mAdminList.get(j); 7616 List<String> fromAdmin = admin.permittedAccessiblityServices; 7617 if (fromAdmin != null) { 7618 if (result == null) { 7619 result = new ArrayList<>(fromAdmin); 7620 } else { 7621 result.retainAll(fromAdmin); 7622 } 7623 } 7624 } 7625 } 7626 7627 // If we have a permitted list add all system accessibility services. 7628 if (result != null) { 7629 long id = mInjector.binderClearCallingIdentity(); 7630 try { 7631 UserInfo user = getUserInfo(userId); 7632 if (user.isManagedProfile()) { 7633 userId = user.profileGroupId; 7634 } 7635 AccessibilityManager accessibilityManager = 7636 getAccessibilityManagerForUser(userId); 7637 List<AccessibilityServiceInfo> installedServices = 7638 accessibilityManager.getInstalledAccessibilityServiceList(); 7639 7640 if (installedServices != null) { 7641 for (AccessibilityServiceInfo service : installedServices) { 7642 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 7643 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7644 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7645 result.add(serviceInfo.packageName); 7646 } 7647 } 7648 } 7649 } finally { 7650 mInjector.binderRestoreCallingIdentity(id); 7651 } 7652 } 7653 7654 return result; 7655 } 7656 } 7657 7658 @Override 7659 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 7660 int userHandle) { 7661 if (!mHasFeature) { 7662 return true; 7663 } 7664 Preconditions.checkNotNull(who, "ComponentName is null"); 7665 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7666 if (!isCallerWithSystemUid()){ 7667 throw new SecurityException( 7668 "Only the system can query if an accessibility service is disabled by admin"); 7669 } 7670 synchronized (this) { 7671 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7672 if (admin == null) { 7673 return false; 7674 } 7675 if (admin.permittedAccessiblityServices == null) { 7676 return true; 7677 } 7678 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 7679 admin.permittedAccessiblityServices, userHandle); 7680 } 7681 } 7682 7683 private boolean checkCallerIsCurrentUserOrProfile() { 7684 int callingUserId = UserHandle.getCallingUserId(); 7685 long token = mInjector.binderClearCallingIdentity(); 7686 try { 7687 UserInfo currentUser; 7688 UserInfo callingUser = getUserInfo(callingUserId); 7689 try { 7690 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7691 } catch (RemoteException e) { 7692 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 7693 return false; 7694 } 7695 7696 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 7697 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 7698 + "of a user that isn't the foreground user."); 7699 return false; 7700 } 7701 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 7702 Slog.e(LOG_TAG, "Cannot set permitted input methods " 7703 + "of a user that isn't the foreground user."); 7704 return false; 7705 } 7706 } finally { 7707 mInjector.binderRestoreCallingIdentity(token); 7708 } 7709 return true; 7710 } 7711 7712 @Override 7713 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 7714 if (!mHasFeature) { 7715 return false; 7716 } 7717 Preconditions.checkNotNull(who, "ComponentName is null"); 7718 7719 // TODO When InputMethodManager supports per user calls remove 7720 // this restriction. 7721 if (!checkCallerIsCurrentUserOrProfile()) { 7722 return false; 7723 } 7724 7725 if (packageList != null) { 7726 // InputMethodManager fetches input methods for current user. 7727 // So this can only be set when calling user is the current user 7728 // or parent is current user in case of managed profiles. 7729 InputMethodManager inputMethodManager = 7730 mContext.getSystemService(InputMethodManager.class); 7731 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 7732 7733 if (enabledImes != null) { 7734 List<String> enabledPackages = new ArrayList<String>(); 7735 for (InputMethodInfo ime : enabledImes) { 7736 enabledPackages.add(ime.getPackageName()); 7737 } 7738 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7739 mInjector.binderGetCallingUserHandle().getIdentifier())) { 7740 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 7741 + "because it contains already enabled input method."); 7742 return false; 7743 } 7744 } 7745 } 7746 7747 synchronized (this) { 7748 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7749 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7750 admin.permittedInputMethods = packageList; 7751 saveSettingsLocked(UserHandle.getCallingUserId()); 7752 } 7753 return true; 7754 } 7755 7756 @Override 7757 public List getPermittedInputMethods(ComponentName who) { 7758 if (!mHasFeature) { 7759 return null; 7760 } 7761 Preconditions.checkNotNull(who, "ComponentName is null"); 7762 7763 synchronized (this) { 7764 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7765 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7766 return admin.permittedInputMethods; 7767 } 7768 } 7769 7770 @Override 7771 public List getPermittedInputMethodsForCurrentUser() { 7772 UserInfo currentUser; 7773 try { 7774 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7775 } catch (RemoteException e) { 7776 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 7777 // Activity managed is dead, just allow all IMEs 7778 return null; 7779 } 7780 7781 int userId = currentUser.id; 7782 synchronized (this) { 7783 List<String> result = null; 7784 // If we have multiple profiles we return the intersection of the 7785 // permitted lists. This can happen in cases where we have a device 7786 // and profile owner. 7787 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 7788 for (int profileId : profileIds) { 7789 // Just loop though all admins, only device or profiles 7790 // owners can have permitted lists set. 7791 DevicePolicyData policy = getUserDataUnchecked(profileId); 7792 final int N = policy.mAdminList.size(); 7793 for (int j = 0; j < N; j++) { 7794 ActiveAdmin admin = policy.mAdminList.get(j); 7795 List<String> fromAdmin = admin.permittedInputMethods; 7796 if (fromAdmin != null) { 7797 if (result == null) { 7798 result = new ArrayList<String>(fromAdmin); 7799 } else { 7800 result.retainAll(fromAdmin); 7801 } 7802 } 7803 } 7804 } 7805 7806 // If we have a permitted list add all system input methods. 7807 if (result != null) { 7808 InputMethodManager inputMethodManager = 7809 mContext.getSystemService(InputMethodManager.class); 7810 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 7811 long id = mInjector.binderClearCallingIdentity(); 7812 try { 7813 if (imes != null) { 7814 for (InputMethodInfo ime : imes) { 7815 ServiceInfo serviceInfo = ime.getServiceInfo(); 7816 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7817 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7818 result.add(serviceInfo.packageName); 7819 } 7820 } 7821 } 7822 } finally { 7823 mInjector.binderRestoreCallingIdentity(id); 7824 } 7825 } 7826 return result; 7827 } 7828 } 7829 7830 @Override 7831 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 7832 int userHandle) { 7833 if (!mHasFeature) { 7834 return true; 7835 } 7836 Preconditions.checkNotNull(who, "ComponentName is null"); 7837 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7838 if (!isCallerWithSystemUid()) { 7839 throw new SecurityException( 7840 "Only the system can query if an input method is disabled by admin"); 7841 } 7842 synchronized (this) { 7843 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7844 if (admin == null) { 7845 return false; 7846 } 7847 if (admin.permittedInputMethods == null) { 7848 return true; 7849 } 7850 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 7851 admin.permittedInputMethods, userHandle); 7852 } 7853 } 7854 7855 private void sendAdminEnabledBroadcastLocked(int userHandle) { 7856 DevicePolicyData policyData = getUserData(userHandle); 7857 if (policyData.mAdminBroadcastPending) { 7858 // Send the initialization data to profile owner and delete the data 7859 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 7860 if (admin != null) { 7861 PersistableBundle initBundle = policyData.mInitBundle; 7862 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 7863 initBundle == null ? null : new Bundle(initBundle), null); 7864 } 7865 policyData.mInitBundle = null; 7866 policyData.mAdminBroadcastPending = false; 7867 saveSettingsLocked(userHandle); 7868 } 7869 } 7870 7871 @Override 7872 public UserHandle createAndManageUser(ComponentName admin, String name, 7873 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 7874 Preconditions.checkNotNull(admin, "admin is null"); 7875 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 7876 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 7877 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 7878 + admin + " are not in the same package"); 7879 } 7880 // Only allow the system user to use this method 7881 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 7882 throw new SecurityException("createAndManageUser was called from non-system user"); 7883 } 7884 if (!mInjector.userManagerIsSplitSystemUser() 7885 && (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 7886 throw new IllegalArgumentException( 7887 "Ephemeral users are only supported on systems with a split system user."); 7888 } 7889 // Create user. 7890 UserHandle user = null; 7891 synchronized (this) { 7892 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7893 7894 final long id = mInjector.binderClearCallingIdentity(); 7895 try { 7896 int userInfoFlags = 0; 7897 if ((flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 7898 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 7899 } 7900 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 7901 userInfoFlags); 7902 if (userInfo != null) { 7903 user = userInfo.getUserHandle(); 7904 } 7905 } finally { 7906 mInjector.binderRestoreCallingIdentity(id); 7907 } 7908 } 7909 if (user == null) { 7910 return null; 7911 } 7912 // Set admin. 7913 final long id = mInjector.binderClearCallingIdentity(); 7914 try { 7915 final String adminPkg = admin.getPackageName(); 7916 7917 final int userHandle = user.getIdentifier(); 7918 try { 7919 // Install the profile owner if not present. 7920 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 7921 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle, 7922 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 7923 } 7924 } catch (RemoteException e) { 7925 Slog.e(LOG_TAG, "Failed to make remote calls for createAndManageUser, " 7926 + "removing created user", e); 7927 mUserManager.removeUser(user.getIdentifier()); 7928 return null; 7929 } 7930 7931 setActiveAdmin(profileOwner, true, userHandle); 7932 // User is not started yet, the broadcast by setActiveAdmin will not be received. 7933 // So we store adminExtras for broadcasting when the user starts for first time. 7934 synchronized(this) { 7935 DevicePolicyData policyData = getUserData(userHandle); 7936 policyData.mInitBundle = adminExtras; 7937 policyData.mAdminBroadcastPending = true; 7938 saveSettingsLocked(userHandle); 7939 } 7940 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 7941 setProfileOwner(profileOwner, ownerName, userHandle); 7942 7943 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 7944 Settings.Secure.putIntForUser(mContext.getContentResolver(), 7945 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 7946 } 7947 7948 return user; 7949 } finally { 7950 mInjector.binderRestoreCallingIdentity(id); 7951 } 7952 } 7953 7954 @Override 7955 public boolean removeUser(ComponentName who, UserHandle userHandle) { 7956 Preconditions.checkNotNull(who, "ComponentName is null"); 7957 synchronized (this) { 7958 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7959 } 7960 7961 final int callingUserId = mInjector.userHandleGetCallingUserId(); 7962 final long id = mInjector.binderClearCallingIdentity(); 7963 try { 7964 String restriction = isManagedProfile(userHandle.getIdentifier()) 7965 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE 7966 : UserManager.DISALLOW_REMOVE_USER; 7967 if (isAdminAffectedByRestriction(who, restriction, callingUserId)) { 7968 Log.w(LOG_TAG, "The device owner cannot remove a user because " 7969 + restriction + " is enabled, and was not set by the device owner"); 7970 return false; 7971 } 7972 return mUserManagerInternal.removeUserEvenWhenDisallowed(userHandle.getIdentifier()); 7973 } finally { 7974 mInjector.binderRestoreCallingIdentity(id); 7975 } 7976 } 7977 7978 private boolean isAdminAffectedByRestriction( 7979 ComponentName admin, String userRestriction, int userId) { 7980 switch(mUserManager.getUserRestrictionSource(userRestriction, UserHandle.of(userId))) { 7981 case UserManager.RESTRICTION_NOT_SET: 7982 return false; 7983 case UserManager.RESTRICTION_SOURCE_DEVICE_OWNER: 7984 return !isDeviceOwner(admin, userId); 7985 case UserManager.RESTRICTION_SOURCE_PROFILE_OWNER: 7986 return !isProfileOwner(admin, userId); 7987 default: 7988 return true; 7989 } 7990 } 7991 7992 @Override 7993 public boolean switchUser(ComponentName who, UserHandle userHandle) { 7994 Preconditions.checkNotNull(who, "ComponentName is null"); 7995 synchronized (this) { 7996 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7997 7998 long id = mInjector.binderClearCallingIdentity(); 7999 try { 8000 int userId = UserHandle.USER_SYSTEM; 8001 if (userHandle != null) { 8002 userId = userHandle.getIdentifier(); 8003 } 8004 return mInjector.getIActivityManager().switchUser(userId); 8005 } catch (RemoteException e) { 8006 Log.e(LOG_TAG, "Couldn't switch user", e); 8007 return false; 8008 } finally { 8009 mInjector.binderRestoreCallingIdentity(id); 8010 } 8011 } 8012 } 8013 8014 @Override 8015 public Bundle getApplicationRestrictions(ComponentName who, String callerPackage, 8016 String packageName) { 8017 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8018 DELEGATION_APP_RESTRICTIONS); 8019 8020 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 8021 final long id = mInjector.binderClearCallingIdentity(); 8022 try { 8023 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 8024 // if no restrictions were saved, mUserManager.getApplicationRestrictions 8025 // returns null, but DPM method should return an empty Bundle as per JavaDoc 8026 return bundle != null ? bundle : Bundle.EMPTY; 8027 } finally { 8028 mInjector.binderRestoreCallingIdentity(id); 8029 } 8030 } 8031 8032 @Override 8033 public String[] setPackagesSuspended(ComponentName who, String callerPackage, 8034 String[] packageNames, boolean suspended) { 8035 int callingUserId = UserHandle.getCallingUserId(); 8036 synchronized (this) { 8037 // Ensure the caller is a DO/PO or a package access delegate. 8038 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8039 DELEGATION_PACKAGE_ACCESS); 8040 8041 long id = mInjector.binderClearCallingIdentity(); 8042 try { 8043 return mIPackageManager.setPackagesSuspendedAsUser( 8044 packageNames, suspended, callingUserId); 8045 } catch (RemoteException re) { 8046 // Shouldn't happen. 8047 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 8048 } finally { 8049 mInjector.binderRestoreCallingIdentity(id); 8050 } 8051 return packageNames; 8052 } 8053 } 8054 8055 @Override 8056 public boolean isPackageSuspended(ComponentName who, String callerPackage, String packageName) { 8057 int callingUserId = UserHandle.getCallingUserId(); 8058 synchronized (this) { 8059 // Ensure the caller is a DO/PO or a package access delegate. 8060 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8061 DELEGATION_PACKAGE_ACCESS); 8062 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8063 8064 long id = mInjector.binderClearCallingIdentity(); 8065 try { 8066 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 8067 } catch (RemoteException re) { 8068 // Shouldn't happen. 8069 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 8070 } finally { 8071 mInjector.binderRestoreCallingIdentity(id); 8072 } 8073 return false; 8074 } 8075 } 8076 8077 @Override 8078 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 8079 Preconditions.checkNotNull(who, "ComponentName is null"); 8080 if (!UserRestrictionsUtils.isValidRestriction(key)) { 8081 return; 8082 } 8083 8084 final int userHandle = mInjector.userHandleGetCallingUserId(); 8085 synchronized (this) { 8086 final ActiveAdmin activeAdmin = 8087 getActiveAdminForCallerLocked(who, 8088 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8089 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 8090 if (isDeviceOwner) { 8091 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 8092 throw new SecurityException("Device owner cannot set user restriction " + key); 8093 } 8094 } else { // profile owner 8095 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 8096 throw new SecurityException("Profile owner cannot set user restriction " + key); 8097 } 8098 } 8099 8100 // Save the restriction to ActiveAdmin. 8101 final Bundle restrictions = activeAdmin.ensureUserRestrictions(); 8102 if (enabledFromThisOwner) { 8103 restrictions.putBoolean(key, true); 8104 } else { 8105 restrictions.remove(key); 8106 } 8107 saveUserRestrictionsLocked(userHandle); 8108 } 8109 } 8110 8111 private void saveUserRestrictionsLocked(int userId) { 8112 saveSettingsLocked(userId); 8113 pushUserRestrictions(userId); 8114 sendChangedNotification(userId); 8115 } 8116 8117 private void pushUserRestrictions(int userId) { 8118 synchronized (this) { 8119 final boolean isDeviceOwner = mOwners.isDeviceOwnerUserId(userId); 8120 final Bundle userRestrictions; 8121 // Whether device owner enforces camera restriction. 8122 boolean disallowCameraGlobally = false; 8123 8124 if (isDeviceOwner) { 8125 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 8126 if (deviceOwner == null) { 8127 return; // Shouldn't happen. 8128 } 8129 userRestrictions = deviceOwner.userRestrictions; 8130 // DO can disable camera globally. 8131 disallowCameraGlobally = deviceOwner.disableCamera; 8132 } else { 8133 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 8134 userRestrictions = profileOwner != null ? profileOwner.userRestrictions : null; 8135 } 8136 8137 // Whether any admin enforces camera restriction. 8138 final int cameraRestrictionScope = 8139 getCameraRestrictionScopeLocked(userId, disallowCameraGlobally); 8140 8141 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, userRestrictions, 8142 isDeviceOwner, cameraRestrictionScope); 8143 } 8144 } 8145 8146 /** 8147 * Get the scope of camera restriction for a given user if any. 8148 */ 8149 private int getCameraRestrictionScopeLocked(int userId, boolean disallowCameraGlobally) { 8150 if (disallowCameraGlobally) { 8151 return UserManagerInternal.CAMERA_DISABLED_GLOBALLY; 8152 } else if (getCameraDisabled( 8153 /* who= */ null, userId, /* mergeDeviceOwnerRestriction= */ false)) { 8154 return UserManagerInternal.CAMERA_DISABLED_LOCALLY; 8155 } 8156 return UserManagerInternal.CAMERA_NOT_DISABLED; 8157 } 8158 8159 @Override 8160 public Bundle getUserRestrictions(ComponentName who) { 8161 if (!mHasFeature) { 8162 return null; 8163 } 8164 Preconditions.checkNotNull(who, "ComponentName is null"); 8165 synchronized (this) { 8166 final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who, 8167 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8168 return activeAdmin.userRestrictions; 8169 } 8170 } 8171 8172 @Override 8173 public boolean setApplicationHidden(ComponentName who, String callerPackage, String packageName, 8174 boolean hidden) { 8175 int callingUserId = UserHandle.getCallingUserId(); 8176 synchronized (this) { 8177 // Ensure the caller is a DO/PO or a package access delegate. 8178 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8179 DELEGATION_PACKAGE_ACCESS); 8180 8181 long id = mInjector.binderClearCallingIdentity(); 8182 try { 8183 return mIPackageManager.setApplicationHiddenSettingAsUser( 8184 packageName, hidden, callingUserId); 8185 } catch (RemoteException re) { 8186 // shouldn't happen 8187 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 8188 } finally { 8189 mInjector.binderRestoreCallingIdentity(id); 8190 } 8191 return false; 8192 } 8193 } 8194 8195 @Override 8196 public boolean isApplicationHidden(ComponentName who, String callerPackage, 8197 String packageName) { 8198 int callingUserId = UserHandle.getCallingUserId(); 8199 synchronized (this) { 8200 // Ensure the caller is a DO/PO or a package access delegate. 8201 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8202 DELEGATION_PACKAGE_ACCESS); 8203 8204 long id = mInjector.binderClearCallingIdentity(); 8205 try { 8206 return mIPackageManager.getApplicationHiddenSettingAsUser( 8207 packageName, callingUserId); 8208 } catch (RemoteException re) { 8209 // shouldn't happen 8210 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 8211 } finally { 8212 mInjector.binderRestoreCallingIdentity(id); 8213 } 8214 return false; 8215 } 8216 } 8217 8218 @Override 8219 public void enableSystemApp(ComponentName who, String callerPackage, String packageName) { 8220 synchronized (this) { 8221 // Ensure the caller is a DO/PO or an enable system app delegate. 8222 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8223 DELEGATION_ENABLE_SYSTEM_APP); 8224 8225 int userId = UserHandle.getCallingUserId(); 8226 long id = mInjector.binderClearCallingIdentity(); 8227 8228 try { 8229 if (VERBOSE_LOG) { 8230 Slog.v(LOG_TAG, "installing " + packageName + " for " 8231 + userId); 8232 } 8233 8234 int parentUserId = getProfileParentId(userId); 8235 if (!isSystemApp(mIPackageManager, packageName, parentUserId)) { 8236 throw new IllegalArgumentException("Only system apps can be enabled this way."); 8237 } 8238 8239 // Install the app. 8240 mIPackageManager.installExistingPackageAsUser(packageName, userId, 8241 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8242 8243 } catch (RemoteException re) { 8244 // shouldn't happen 8245 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 8246 } finally { 8247 mInjector.binderRestoreCallingIdentity(id); 8248 } 8249 } 8250 } 8251 8252 @Override 8253 public int enableSystemAppWithIntent(ComponentName who, String callerPackage, Intent intent) { 8254 synchronized (this) { 8255 // Ensure the caller is a DO/PO or an enable system app delegate. 8256 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8257 DELEGATION_ENABLE_SYSTEM_APP); 8258 8259 int userId = UserHandle.getCallingUserId(); 8260 long id = mInjector.binderClearCallingIdentity(); 8261 8262 try { 8263 int parentUserId = getProfileParentId(userId); 8264 List<ResolveInfo> activitiesToEnable = mIPackageManager 8265 .queryIntentActivities(intent, 8266 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 8267 PackageManager.MATCH_DIRECT_BOOT_AWARE 8268 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 8269 parentUserId) 8270 .getList(); 8271 8272 if (VERBOSE_LOG) { 8273 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 8274 } 8275 int numberOfAppsInstalled = 0; 8276 if (activitiesToEnable != null) { 8277 for (ResolveInfo info : activitiesToEnable) { 8278 if (info.activityInfo != null) { 8279 String packageName = info.activityInfo.packageName; 8280 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 8281 numberOfAppsInstalled++; 8282 mIPackageManager.installExistingPackageAsUser(packageName, userId, 8283 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8284 } else { 8285 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 8286 + " system app"); 8287 } 8288 } 8289 } 8290 } 8291 return numberOfAppsInstalled; 8292 } catch (RemoteException e) { 8293 // shouldn't happen 8294 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 8295 return 0; 8296 } finally { 8297 mInjector.binderRestoreCallingIdentity(id); 8298 } 8299 } 8300 } 8301 8302 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 8303 throws RemoteException { 8304 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, MATCH_UNINSTALLED_PACKAGES, 8305 userId); 8306 if (appInfo == null) { 8307 throw new IllegalArgumentException("The application " + packageName + 8308 " is not present on this device"); 8309 } 8310 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 8311 } 8312 8313 @Override 8314 public void setAccountManagementDisabled(ComponentName who, String accountType, 8315 boolean disabled) { 8316 if (!mHasFeature) { 8317 return; 8318 } 8319 Preconditions.checkNotNull(who, "ComponentName is null"); 8320 synchronized (this) { 8321 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 8322 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8323 if (disabled) { 8324 ap.accountTypesWithManagementDisabled.add(accountType); 8325 } else { 8326 ap.accountTypesWithManagementDisabled.remove(accountType); 8327 } 8328 saveSettingsLocked(UserHandle.getCallingUserId()); 8329 } 8330 } 8331 8332 @Override 8333 public String[] getAccountTypesWithManagementDisabled() { 8334 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 8335 } 8336 8337 @Override 8338 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 8339 enforceFullCrossUsersPermission(userId); 8340 if (!mHasFeature) { 8341 return null; 8342 } 8343 synchronized (this) { 8344 DevicePolicyData policy = getUserData(userId); 8345 final int N = policy.mAdminList.size(); 8346 ArraySet<String> resultSet = new ArraySet<>(); 8347 for (int i = 0; i < N; i++) { 8348 ActiveAdmin admin = policy.mAdminList.get(i); 8349 resultSet.addAll(admin.accountTypesWithManagementDisabled); 8350 } 8351 return resultSet.toArray(new String[resultSet.size()]); 8352 } 8353 } 8354 8355 @Override 8356 public void setUninstallBlocked(ComponentName who, String callerPackage, String packageName, 8357 boolean uninstallBlocked) { 8358 final int userId = UserHandle.getCallingUserId(); 8359 synchronized (this) { 8360 // Ensure the caller is a DO/PO or a block uninstall delegate 8361 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8362 DELEGATION_BLOCK_UNINSTALL); 8363 8364 long id = mInjector.binderClearCallingIdentity(); 8365 try { 8366 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 8367 } catch (RemoteException re) { 8368 // Shouldn't happen. 8369 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 8370 } finally { 8371 mInjector.binderRestoreCallingIdentity(id); 8372 } 8373 } 8374 } 8375 8376 @Override 8377 public boolean isUninstallBlocked(ComponentName who, String packageName) { 8378 // This function should return true if and only if the package is blocked by 8379 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 8380 // when the package is a system app, or when it is an active device admin. 8381 final int userId = UserHandle.getCallingUserId(); 8382 8383 synchronized (this) { 8384 if (who != null) { 8385 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8386 } 8387 8388 long id = mInjector.binderClearCallingIdentity(); 8389 try { 8390 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 8391 } catch (RemoteException re) { 8392 // Shouldn't happen. 8393 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 8394 } finally { 8395 mInjector.binderRestoreCallingIdentity(id); 8396 } 8397 } 8398 return false; 8399 } 8400 8401 @Override 8402 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 8403 if (!mHasFeature) { 8404 return; 8405 } 8406 Preconditions.checkNotNull(who, "ComponentName is null"); 8407 synchronized (this) { 8408 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8409 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8410 if (admin.disableCallerId != disabled) { 8411 admin.disableCallerId = disabled; 8412 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 8413 } 8414 } 8415 } 8416 8417 @Override 8418 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 8419 if (!mHasFeature) { 8420 return false; 8421 } 8422 Preconditions.checkNotNull(who, "ComponentName is null"); 8423 synchronized (this) { 8424 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8425 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8426 return admin.disableCallerId; 8427 } 8428 } 8429 8430 @Override 8431 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 8432 enforceCrossUsersPermission(userId); 8433 synchronized (this) { 8434 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8435 return (admin != null) ? admin.disableCallerId : false; 8436 } 8437 } 8438 8439 @Override 8440 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 8441 if (!mHasFeature) { 8442 return; 8443 } 8444 Preconditions.checkNotNull(who, "ComponentName is null"); 8445 synchronized (this) { 8446 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8447 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8448 if (admin.disableContactsSearch != disabled) { 8449 admin.disableContactsSearch = disabled; 8450 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 8451 } 8452 } 8453 } 8454 8455 @Override 8456 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 8457 if (!mHasFeature) { 8458 return false; 8459 } 8460 Preconditions.checkNotNull(who, "ComponentName is null"); 8461 synchronized (this) { 8462 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8463 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8464 return admin.disableContactsSearch; 8465 } 8466 } 8467 8468 @Override 8469 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 8470 enforceCrossUsersPermission(userId); 8471 synchronized (this) { 8472 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8473 return (admin != null) ? admin.disableContactsSearch : false; 8474 } 8475 } 8476 8477 @Override 8478 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 8479 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 8480 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 8481 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 8482 final int callingUserId = UserHandle.getCallingUserId(); 8483 8484 final long ident = mInjector.binderClearCallingIdentity(); 8485 try { 8486 synchronized (this) { 8487 final int managedUserId = getManagedUserId(callingUserId); 8488 if (managedUserId < 0) { 8489 return; 8490 } 8491 if (isCrossProfileQuickContactDisabled(managedUserId)) { 8492 if (VERBOSE_LOG) { 8493 Log.v(LOG_TAG, 8494 "Cross-profile contacts access disabled for user " + managedUserId); 8495 } 8496 return; 8497 } 8498 ContactsInternal.startQuickContactWithErrorToastForUser( 8499 mContext, intent, new UserHandle(managedUserId)); 8500 } 8501 } finally { 8502 mInjector.binderRestoreCallingIdentity(ident); 8503 } 8504 } 8505 8506 /** 8507 * @return true if cross-profile QuickContact is disabled 8508 */ 8509 private boolean isCrossProfileQuickContactDisabled(int userId) { 8510 return getCrossProfileCallerIdDisabledForUser(userId) 8511 && getCrossProfileContactsSearchDisabledForUser(userId); 8512 } 8513 8514 /** 8515 * @return the user ID of the managed user that is linked to the current user, if any. 8516 * Otherwise -1. 8517 */ 8518 public int getManagedUserId(int callingUserId) { 8519 if (VERBOSE_LOG) { 8520 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 8521 } 8522 8523 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 8524 if (ui.id == callingUserId || !ui.isManagedProfile()) { 8525 continue; // Caller user self, or not a managed profile. Skip. 8526 } 8527 if (VERBOSE_LOG) { 8528 Log.v(LOG_TAG, "Managed user=" + ui.id); 8529 } 8530 return ui.id; 8531 } 8532 if (VERBOSE_LOG) { 8533 Log.v(LOG_TAG, "Managed user not found."); 8534 } 8535 return -1; 8536 } 8537 8538 @Override 8539 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 8540 if (!mHasFeature) { 8541 return; 8542 } 8543 Preconditions.checkNotNull(who, "ComponentName is null"); 8544 synchronized (this) { 8545 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8546 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8547 if (admin.disableBluetoothContactSharing != disabled) { 8548 admin.disableBluetoothContactSharing = disabled; 8549 saveSettingsLocked(UserHandle.getCallingUserId()); 8550 } 8551 } 8552 } 8553 8554 @Override 8555 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 8556 if (!mHasFeature) { 8557 return false; 8558 } 8559 Preconditions.checkNotNull(who, "ComponentName is null"); 8560 synchronized (this) { 8561 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8562 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8563 return admin.disableBluetoothContactSharing; 8564 } 8565 } 8566 8567 @Override 8568 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 8569 // TODO: Should there be a check to make sure this relationship is 8570 // within a profile group? 8571 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 8572 synchronized (this) { 8573 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8574 return (admin != null) ? admin.disableBluetoothContactSharing : false; 8575 } 8576 } 8577 8578 @Override 8579 public void setLockTaskPackages(ComponentName who, String[] packages) 8580 throws SecurityException { 8581 Preconditions.checkNotNull(who, "ComponentName is null"); 8582 Preconditions.checkNotNull(packages, "packages is null"); 8583 8584 synchronized (this) { 8585 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8586 final int userHandle = mInjector.userHandleGetCallingUserId(); 8587 if (isUserAffiliatedWithDeviceLocked(userHandle)) { 8588 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 8589 } else { 8590 throw new SecurityException("Admin " + who + 8591 " is neither the device owner or affiliated user's profile owner."); 8592 } 8593 } 8594 } 8595 8596 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 8597 DevicePolicyData policy = getUserData(userHandle); 8598 policy.mLockTaskPackages = packages; 8599 8600 // Store the settings persistently. 8601 saveSettingsLocked(userHandle); 8602 updateLockTaskPackagesLocked(packages, userHandle); 8603 } 8604 8605 private void maybeClearLockTaskPackagesLocked() { 8606 final long ident = mInjector.binderClearCallingIdentity(); 8607 try { 8608 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 8609 for (int i = 0; i < userInfos.size(); i++) { 8610 int userId = userInfos.get(i).id; 8611 final List<String> lockTaskPackages = getUserData(userId).mLockTaskPackages; 8612 if (!lockTaskPackages.isEmpty() && 8613 !isUserAffiliatedWithDeviceLocked(userId)) { 8614 Slog.d(LOG_TAG, 8615 "User id " + userId + " not affiliated. Clearing lock task packages"); 8616 setLockTaskPackagesLocked(userId, Collections.<String>emptyList()); 8617 } 8618 } 8619 } finally { 8620 mInjector.binderRestoreCallingIdentity(ident); 8621 } 8622 } 8623 8624 @Override 8625 public String[] getLockTaskPackages(ComponentName who) { 8626 Preconditions.checkNotNull(who, "ComponentName is null"); 8627 8628 final int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 8629 synchronized (this) { 8630 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8631 if (!isUserAffiliatedWithDeviceLocked(userHandle)) { 8632 throw new SecurityException("Admin " + who + 8633 " is neither the device owner or affiliated user's profile owner."); 8634 } 8635 8636 final List<String> packages = getUserData(userHandle).mLockTaskPackages; 8637 return packages.toArray(new String[packages.size()]); 8638 } 8639 } 8640 8641 @Override 8642 public boolean isLockTaskPermitted(String pkg) { 8643 final int userHandle = mInjector.userHandleGetCallingUserId(); 8644 synchronized (this) { 8645 return getUserData(userHandle).mLockTaskPackages.contains(pkg); 8646 } 8647 } 8648 8649 @Override 8650 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 8651 if (!isCallerWithSystemUid()) { 8652 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 8653 } 8654 synchronized (this) { 8655 final DevicePolicyData policy = getUserData(userHandle); 8656 Bundle adminExtras = new Bundle(); 8657 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 8658 for (ActiveAdmin admin : policy.mAdminList) { 8659 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 8660 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 8661 if (ownsDevice || ownsProfile) { 8662 if (isEnabled) { 8663 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 8664 adminExtras, null); 8665 } else { 8666 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 8667 } 8668 } 8669 } 8670 } 8671 } 8672 8673 @Override 8674 public void setGlobalSetting(ComponentName who, String setting, String value) { 8675 Preconditions.checkNotNull(who, "ComponentName is null"); 8676 8677 synchronized (this) { 8678 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8679 8680 // Some settings are no supported any more. However we do not want to throw a 8681 // SecurityException to avoid breaking apps. 8682 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 8683 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 8684 return; 8685 } 8686 8687 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 8688 throw new SecurityException(String.format( 8689 "Permission denial: device owners cannot update %1$s", setting)); 8690 } 8691 8692 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 8693 // ignore if it contradicts an existing policy 8694 long timeMs = getMaximumTimeToLock( 8695 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 8696 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 8697 return; 8698 } 8699 } 8700 8701 long id = mInjector.binderClearCallingIdentity(); 8702 try { 8703 mInjector.settingsGlobalPutString(setting, value); 8704 } finally { 8705 mInjector.binderRestoreCallingIdentity(id); 8706 } 8707 } 8708 } 8709 8710 @Override 8711 public void setSecureSetting(ComponentName who, String setting, String value) { 8712 Preconditions.checkNotNull(who, "ComponentName is null"); 8713 int callingUserId = mInjector.userHandleGetCallingUserId(); 8714 8715 synchronized (this) { 8716 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8717 8718 if (isDeviceOwner(who, callingUserId)) { 8719 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 8720 throw new SecurityException(String.format( 8721 "Permission denial: Device owners cannot update %1$s", setting)); 8722 } 8723 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 8724 throw new SecurityException(String.format( 8725 "Permission denial: Profile owners cannot update %1$s", setting)); 8726 } 8727 8728 long id = mInjector.binderClearCallingIdentity(); 8729 try { 8730 if (Settings.Secure.DEFAULT_INPUT_METHOD.equals(setting)) { 8731 final String currentValue = mInjector.settingsSecureGetStringForUser( 8732 Settings.Secure.DEFAULT_INPUT_METHOD, callingUserId); 8733 if (!TextUtils.equals(currentValue, value)) { 8734 // Tell the content observer that the next change will be due to the owner 8735 // changing the value. There is a small race condition here that we cannot 8736 // avoid: Change notifications are sent asynchronously, so it is possible 8737 // that there are prior notifications queued up before the one we are about 8738 // to trigger. This is a corner case that will have no impact in practice. 8739 mSetupContentObserver.addPendingChangeByOwnerLocked(callingUserId); 8740 } 8741 getUserData(callingUserId).mDefaultInputMethodSet = true; 8742 saveSettingsLocked(callingUserId); 8743 } 8744 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 8745 } finally { 8746 mInjector.binderRestoreCallingIdentity(id); 8747 } 8748 } 8749 } 8750 8751 @Override 8752 public void setMasterVolumeMuted(ComponentName who, boolean on) { 8753 Preconditions.checkNotNull(who, "ComponentName is null"); 8754 synchronized (this) { 8755 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8756 setUserRestriction(who, UserManager.DISALLOW_UNMUTE_DEVICE, on); 8757 } 8758 } 8759 8760 @Override 8761 public boolean isMasterVolumeMuted(ComponentName who) { 8762 Preconditions.checkNotNull(who, "ComponentName is null"); 8763 synchronized (this) { 8764 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8765 8766 AudioManager audioManager = 8767 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 8768 return audioManager.isMasterMute(); 8769 } 8770 } 8771 8772 @Override 8773 public void setUserIcon(ComponentName who, Bitmap icon) { 8774 synchronized (this) { 8775 Preconditions.checkNotNull(who, "ComponentName is null"); 8776 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8777 8778 int userId = UserHandle.getCallingUserId(); 8779 long id = mInjector.binderClearCallingIdentity(); 8780 try { 8781 mUserManagerInternal.setUserIcon(userId, icon); 8782 } finally { 8783 mInjector.binderRestoreCallingIdentity(id); 8784 } 8785 } 8786 } 8787 8788 @Override 8789 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 8790 Preconditions.checkNotNull(who, "ComponentName is null"); 8791 synchronized (this) { 8792 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8793 } 8794 final int userId = UserHandle.getCallingUserId(); 8795 8796 long ident = mInjector.binderClearCallingIdentity(); 8797 try { 8798 // disallow disabling the keyguard if a password is currently set 8799 if (disabled && mLockPatternUtils.isSecure(userId)) { 8800 return false; 8801 } 8802 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 8803 } finally { 8804 mInjector.binderRestoreCallingIdentity(ident); 8805 } 8806 return true; 8807 } 8808 8809 @Override 8810 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 8811 int userId = UserHandle.getCallingUserId(); 8812 synchronized (this) { 8813 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8814 DevicePolicyData policy = getUserData(userId); 8815 if (policy.mStatusBarDisabled != disabled) { 8816 if (!setStatusBarDisabledInternal(disabled, userId)) { 8817 return false; 8818 } 8819 policy.mStatusBarDisabled = disabled; 8820 saveSettingsLocked(userId); 8821 } 8822 } 8823 return true; 8824 } 8825 8826 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 8827 long ident = mInjector.binderClearCallingIdentity(); 8828 try { 8829 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 8830 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 8831 if (statusBarService != null) { 8832 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 8833 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 8834 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 8835 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 8836 return true; 8837 } 8838 } catch (RemoteException e) { 8839 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 8840 } finally { 8841 mInjector.binderRestoreCallingIdentity(ident); 8842 } 8843 return false; 8844 } 8845 8846 /** 8847 * We need to update the internal state of whether a user has completed setup or a 8848 * device has paired once. After that, we ignore any changes that reset the 8849 * Settings.Secure.USER_SETUP_COMPLETE or Settings.Secure.DEVICE_PAIRED change 8850 * as we don't trust any apps that might try to reset them. 8851 * <p> 8852 * Unfortunately, we don't know which user's setup state was changed, so we write all of 8853 * them. 8854 */ 8855 void updateUserSetupCompleteAndPaired() { 8856 List<UserInfo> users = mUserManager.getUsers(true); 8857 final int N = users.size(); 8858 for (int i = 0; i < N; i++) { 8859 int userHandle = users.get(i).id; 8860 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 8861 userHandle) != 0) { 8862 DevicePolicyData policy = getUserData(userHandle); 8863 if (!policy.mUserSetupComplete) { 8864 policy.mUserSetupComplete = true; 8865 synchronized (this) { 8866 saveSettingsLocked(userHandle); 8867 } 8868 } 8869 } 8870 if (mIsWatch && mInjector.settingsSecureGetIntForUser(Settings.Secure.DEVICE_PAIRED, 0, 8871 userHandle) != 0) { 8872 DevicePolicyData policy = getUserData(userHandle); 8873 if (!policy.mPaired) { 8874 policy.mPaired = true; 8875 synchronized (this) { 8876 saveSettingsLocked(userHandle); 8877 } 8878 } 8879 } 8880 } 8881 } 8882 8883 private class SetupContentObserver extends ContentObserver { 8884 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 8885 Settings.Secure.USER_SETUP_COMPLETE); 8886 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 8887 Settings.Global.DEVICE_PROVISIONED); 8888 private final Uri mPaired = Settings.Secure.getUriFor(Settings.Secure.DEVICE_PAIRED); 8889 private final Uri mDefaultImeChanged = Settings.Secure.getUriFor( 8890 Settings.Secure.DEFAULT_INPUT_METHOD); 8891 8892 @GuardedBy("DevicePolicyManagerService.this") 8893 private Set<Integer> mUserIdsWithPendingChangesByOwner = new ArraySet<>(); 8894 8895 public SetupContentObserver(Handler handler) { 8896 super(handler); 8897 } 8898 8899 void register() { 8900 mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 8901 mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 8902 if (mIsWatch) { 8903 mInjector.registerContentObserver(mPaired, false, this, UserHandle.USER_ALL); 8904 } 8905 mInjector.registerContentObserver(mDefaultImeChanged, false, this, UserHandle.USER_ALL); 8906 } 8907 8908 private void addPendingChangeByOwnerLocked(int userId) { 8909 mUserIdsWithPendingChangesByOwner.add(userId); 8910 } 8911 8912 @Override 8913 public void onChange(boolean selfChange, Uri uri, int userId) { 8914 if (mUserSetupComplete.equals(uri) || (mIsWatch && mPaired.equals(uri))) { 8915 updateUserSetupCompleteAndPaired(); 8916 } else if (mDeviceProvisioned.equals(uri)) { 8917 synchronized (DevicePolicyManagerService.this) { 8918 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 8919 // is delayed until device is marked as provisioned. 8920 setDeviceOwnerSystemPropertyLocked(); 8921 } 8922 } else if (mDefaultImeChanged.equals(uri)) { 8923 synchronized (DevicePolicyManagerService.this) { 8924 if (mUserIdsWithPendingChangesByOwner.contains(userId)) { 8925 // This change notification was triggered by the owner changing the default 8926 // IME. Ignore it. 8927 mUserIdsWithPendingChangesByOwner.remove(userId); 8928 } else { 8929 // This change notification was triggered by the user manually changing the 8930 // default IME. 8931 getUserData(userId).mDefaultInputMethodSet = false; 8932 saveSettingsLocked(userId); 8933 } 8934 } 8935 } 8936 } 8937 } 8938 8939 @VisibleForTesting 8940 final class LocalService extends DevicePolicyManagerInternal { 8941 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 8942 8943 @Override 8944 public List<String> getCrossProfileWidgetProviders(int profileId) { 8945 synchronized (DevicePolicyManagerService.this) { 8946 if (mOwners == null) { 8947 return Collections.emptyList(); 8948 } 8949 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 8950 if (ownerComponent == null) { 8951 return Collections.emptyList(); 8952 } 8953 8954 DevicePolicyData policy = getUserDataUnchecked(profileId); 8955 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 8956 8957 if (admin == null || admin.crossProfileWidgetProviders == null 8958 || admin.crossProfileWidgetProviders.isEmpty()) { 8959 return Collections.emptyList(); 8960 } 8961 8962 return admin.crossProfileWidgetProviders; 8963 } 8964 } 8965 8966 @Override 8967 public void addOnCrossProfileWidgetProvidersChangeListener( 8968 OnCrossProfileWidgetProvidersChangeListener listener) { 8969 synchronized (DevicePolicyManagerService.this) { 8970 if (mWidgetProviderListeners == null) { 8971 mWidgetProviderListeners = new ArrayList<>(); 8972 } 8973 if (!mWidgetProviderListeners.contains(listener)) { 8974 mWidgetProviderListeners.add(listener); 8975 } 8976 } 8977 } 8978 8979 @Override 8980 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 8981 synchronized(DevicePolicyManagerService.this) { 8982 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 8983 } 8984 } 8985 8986 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 8987 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 8988 synchronized (DevicePolicyManagerService.this) { 8989 listeners = new ArrayList<>(mWidgetProviderListeners); 8990 } 8991 final int listenerCount = listeners.size(); 8992 for (int i = 0; i < listenerCount; i++) { 8993 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 8994 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 8995 } 8996 } 8997 8998 @Override 8999 public Intent createShowAdminSupportIntent(int userId, boolean useDefaultIfNoAdmin) { 9000 // This method is called from AM with its lock held, so don't take the DPMS lock. 9001 // b/29242568 9002 9003 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 9004 if (profileOwner != null) { 9005 return DevicePolicyManagerService.this 9006 .createShowAdminSupportIntent(profileOwner, userId); 9007 } 9008 9009 final Pair<Integer, ComponentName> deviceOwner = 9010 mOwners.getDeviceOwnerUserIdAndComponent(); 9011 if (deviceOwner != null && deviceOwner.first == userId) { 9012 return DevicePolicyManagerService.this 9013 .createShowAdminSupportIntent(deviceOwner.second, userId); 9014 } 9015 9016 // We're not specifying the device admin because there isn't one. 9017 if (useDefaultIfNoAdmin) { 9018 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 9019 } 9020 return null; 9021 } 9022 9023 @Override 9024 public Intent createUserRestrictionSupportIntent(int userId, String userRestriction) { 9025 int source; 9026 long ident = mInjector.binderClearCallingIdentity(); 9027 try { 9028 source = mUserManager.getUserRestrictionSource(userRestriction, 9029 UserHandle.of(userId)); 9030 } finally { 9031 mInjector.binderRestoreCallingIdentity(ident); 9032 } 9033 if ((source & UserManager.RESTRICTION_SOURCE_SYSTEM) != 0) { 9034 /* 9035 * In this case, the user restriction is enforced by the system. 9036 * So we won't show an admin support intent, even if it is also 9037 * enforced by a profile/device owner. 9038 */ 9039 return null; 9040 } 9041 boolean enforcedByDo = (source & UserManager.RESTRICTION_SOURCE_DEVICE_OWNER) != 0; 9042 boolean enforcedByPo = (source & UserManager.RESTRICTION_SOURCE_PROFILE_OWNER) != 0; 9043 if (enforcedByDo && enforcedByPo) { 9044 // In this case, we'll show an admin support dialog that does not 9045 // specify the admin. 9046 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 9047 } else if (enforcedByPo) { 9048 final ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 9049 if (profileOwner != null) { 9050 return DevicePolicyManagerService.this 9051 .createShowAdminSupportIntent(profileOwner, userId); 9052 } 9053 // This could happen if another thread has changed the profile owner since we called 9054 // getUserRestrictionSource 9055 return null; 9056 } else if (enforcedByDo) { 9057 final Pair<Integer, ComponentName> deviceOwner 9058 = mOwners.getDeviceOwnerUserIdAndComponent(); 9059 if (deviceOwner != null) { 9060 return DevicePolicyManagerService.this 9061 .createShowAdminSupportIntent(deviceOwner.second, deviceOwner.first); 9062 } 9063 // This could happen if another thread has changed the device owner since we called 9064 // getUserRestrictionSource 9065 return null; 9066 } 9067 return null; 9068 } 9069 } 9070 9071 private Intent createShowAdminSupportIntent(ComponentName admin, int userId) { 9072 // This method is called with AMS lock held, so don't take DPMS lock 9073 final Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS); 9074 intent.putExtra(Intent.EXTRA_USER_ID, userId); 9075 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, admin); 9076 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 9077 return intent; 9078 } 9079 9080 @Override 9081 public Intent createAdminSupportIntent(String restriction) { 9082 Preconditions.checkNotNull(restriction); 9083 final int uid = mInjector.binderGetCallingUid(); 9084 final int userId = UserHandle.getUserId(uid); 9085 Intent intent = null; 9086 if (DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction) || 9087 DevicePolicyManager.POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction)) { 9088 synchronized(this) { 9089 final DevicePolicyData policy = getUserData(userId); 9090 final int N = policy.mAdminList.size(); 9091 for (int i = 0; i < N; i++) { 9092 final ActiveAdmin admin = policy.mAdminList.get(i); 9093 if ((admin.disableCamera && 9094 DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) || 9095 (admin.disableScreenCapture && DevicePolicyManager 9096 .POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction))) { 9097 intent = createShowAdminSupportIntent(admin.info.getComponent(), userId); 9098 break; 9099 } 9100 } 9101 // For the camera, a device owner on a different user can disable it globally, 9102 // so we need an additional check. 9103 if (intent == null 9104 && DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) { 9105 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 9106 if (admin != null && admin.disableCamera) { 9107 intent = createShowAdminSupportIntent(admin.info.getComponent(), 9108 mOwners.getDeviceOwnerUserId()); 9109 } 9110 } 9111 } 9112 } else { 9113 // if valid, |restriction| can only be a user restriction 9114 intent = mLocalService.createUserRestrictionSupportIntent(userId, restriction); 9115 } 9116 if (intent != null) { 9117 intent.putExtra(DevicePolicyManager.EXTRA_RESTRICTION, restriction); 9118 } 9119 return intent; 9120 } 9121 9122 /** 9123 * Returns true if specified admin is allowed to limit passwords and has a 9124 * {@code minimumPasswordMetrics.quality} of at least {@code minPasswordQuality} 9125 */ 9126 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 9127 if (admin.minimumPasswordMetrics.quality < minPasswordQuality) { 9128 return false; 9129 } 9130 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 9131 } 9132 9133 @Override 9134 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 9135 if (policy != null && !policy.isValid()) { 9136 throw new IllegalArgumentException("Invalid system update policy."); 9137 } 9138 synchronized (this) { 9139 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9140 if (policy == null) { 9141 mOwners.clearSystemUpdatePolicy(); 9142 } else { 9143 mOwners.setSystemUpdatePolicy(policy); 9144 } 9145 mOwners.writeDeviceOwner(); 9146 } 9147 mContext.sendBroadcastAsUser( 9148 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 9149 UserHandle.SYSTEM); 9150 } 9151 9152 @Override 9153 public SystemUpdatePolicy getSystemUpdatePolicy() { 9154 if (UserManager.isDeviceInDemoMode(mContext)) { 9155 // Pretending to have an automatic update policy when the device is in retail demo 9156 // mode. This will allow the device to download and install an ota without 9157 // any user interaction. 9158 return SystemUpdatePolicy.createAutomaticInstallPolicy(); 9159 } 9160 synchronized (this) { 9161 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 9162 if (policy != null && !policy.isValid()) { 9163 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 9164 return null; 9165 } 9166 return policy; 9167 } 9168 } 9169 9170 /** 9171 * Checks if the caller of the method is the device owner app. 9172 * 9173 * @param callerUid UID of the caller. 9174 * @return true if the caller is the device owner app 9175 */ 9176 @VisibleForTesting 9177 boolean isCallerDeviceOwner(int callerUid) { 9178 synchronized (this) { 9179 if (!mOwners.hasDeviceOwner()) { 9180 return false; 9181 } 9182 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 9183 return false; 9184 } 9185 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 9186 .getPackageName(); 9187 try { 9188 String[] pkgs = mInjector.getIPackageManager().getPackagesForUid(callerUid); 9189 for (String pkg : pkgs) { 9190 if (deviceOwnerPackageName.equals(pkg)) { 9191 return true; 9192 } 9193 } 9194 } catch (RemoteException e) { 9195 return false; 9196 } 9197 } 9198 9199 return false; 9200 } 9201 9202 @Override 9203 public void notifyPendingSystemUpdate(@Nullable SystemUpdateInfo info) { 9204 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 9205 "Only the system update service can broadcast update information"); 9206 9207 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 9208 Slog.w(LOG_TAG, "Only the system update service in the system user " + 9209 "can broadcast update information."); 9210 return; 9211 } 9212 9213 if (!mOwners.saveSystemUpdateInfo(info)) { 9214 // Pending system update hasn't changed, don't send duplicate notification. 9215 return; 9216 } 9217 9218 final Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE) 9219 .putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 9220 info == null ? -1 : info.getReceivedTime()); 9221 9222 final long ident = mInjector.binderClearCallingIdentity(); 9223 try { 9224 synchronized (this) { 9225 // Broadcast to device owner first if there is one. 9226 if (mOwners.hasDeviceOwner()) { 9227 final UserHandle deviceOwnerUser = 9228 UserHandle.of(mOwners.getDeviceOwnerUserId()); 9229 intent.setComponent(mOwners.getDeviceOwnerComponent()); 9230 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 9231 } 9232 } 9233 // Get running users. 9234 final int runningUserIds[]; 9235 try { 9236 runningUserIds = mInjector.getIActivityManager().getRunningUserIds(); 9237 } catch (RemoteException e) { 9238 // Shouldn't happen. 9239 Log.e(LOG_TAG, "Could not retrieve the list of running users", e); 9240 return; 9241 } 9242 // Send broadcasts to corresponding profile owners if any. 9243 for (final int userId : runningUserIds) { 9244 synchronized (this) { 9245 final ComponentName profileOwnerPackage = 9246 mOwners.getProfileOwnerComponent(userId); 9247 if (profileOwnerPackage != null) { 9248 intent.setComponent(profileOwnerPackage); 9249 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 9250 } 9251 } 9252 } 9253 } finally { 9254 mInjector.binderRestoreCallingIdentity(ident); 9255 } 9256 } 9257 9258 @Override 9259 public SystemUpdateInfo getPendingSystemUpdate(ComponentName admin) { 9260 Preconditions.checkNotNull(admin, "ComponentName is null"); 9261 enforceProfileOrDeviceOwner(admin); 9262 9263 return mOwners.getSystemUpdateInfo(); 9264 } 9265 9266 @Override 9267 public void setPermissionPolicy(ComponentName admin, String callerPackage, int policy) 9268 throws RemoteException { 9269 int userId = UserHandle.getCallingUserId(); 9270 synchronized (this) { 9271 // Ensure the caller is a DO/PO or a permission grant state delegate. 9272 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9273 DELEGATION_PERMISSION_GRANT); 9274 DevicePolicyData userPolicy = getUserData(userId); 9275 if (userPolicy.mPermissionPolicy != policy) { 9276 userPolicy.mPermissionPolicy = policy; 9277 saveSettingsLocked(userId); 9278 } 9279 } 9280 } 9281 9282 @Override 9283 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 9284 int userId = UserHandle.getCallingUserId(); 9285 synchronized (this) { 9286 DevicePolicyData userPolicy = getUserData(userId); 9287 return userPolicy.mPermissionPolicy; 9288 } 9289 } 9290 9291 @Override 9292 public boolean setPermissionGrantState(ComponentName admin, String callerPackage, 9293 String packageName, String permission, int grantState) throws RemoteException { 9294 UserHandle user = mInjector.binderGetCallingUserHandle(); 9295 synchronized (this) { 9296 // Ensure the caller is a DO/PO or a permission grant state delegate. 9297 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9298 DELEGATION_PERMISSION_GRANT); 9299 long ident = mInjector.binderClearCallingIdentity(); 9300 try { 9301 if (getTargetSdk(packageName, user.getIdentifier()) 9302 < android.os.Build.VERSION_CODES.M) { 9303 return false; 9304 } 9305 final PackageManager packageManager = mInjector.getPackageManager(); 9306 switch (grantState) { 9307 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 9308 mInjector.getPackageManagerInternal().grantRuntimePermission(packageName, 9309 permission, user.getIdentifier(), true /* override policy */); 9310 packageManager.updatePermissionFlags(permission, packageName, 9311 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 9312 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 9313 } break; 9314 9315 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 9316 mInjector.getPackageManagerInternal().revokeRuntimePermission(packageName, 9317 permission, user.getIdentifier(), true /* override policy */); 9318 packageManager.updatePermissionFlags(permission, packageName, 9319 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 9320 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 9321 } break; 9322 9323 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 9324 packageManager.updatePermissionFlags(permission, packageName, 9325 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 9326 } break; 9327 } 9328 return true; 9329 } catch (SecurityException se) { 9330 return false; 9331 } finally { 9332 mInjector.binderRestoreCallingIdentity(ident); 9333 } 9334 } 9335 } 9336 9337 @Override 9338 public int getPermissionGrantState(ComponentName admin, String callerPackage, 9339 String packageName, String permission) throws RemoteException { 9340 PackageManager packageManager = mInjector.getPackageManager(); 9341 9342 UserHandle user = mInjector.binderGetCallingUserHandle(); 9343 if (!isCallerWithSystemUid()) { 9344 // Ensure the caller is a DO/PO or a permission grant state delegate. 9345 enforceCanManageScope(admin, callerPackage, 9346 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, DELEGATION_PERMISSION_GRANT); 9347 } 9348 synchronized (this) { 9349 long ident = mInjector.binderClearCallingIdentity(); 9350 try { 9351 int granted = mIPackageManager.checkPermission(permission, 9352 packageName, user.getIdentifier()); 9353 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 9354 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 9355 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 9356 // Not controlled by policy 9357 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 9358 } else { 9359 // Policy controlled so return result based on permission grant state 9360 return granted == PackageManager.PERMISSION_GRANTED 9361 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 9362 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 9363 } 9364 } finally { 9365 mInjector.binderRestoreCallingIdentity(ident); 9366 } 9367 } 9368 } 9369 9370 boolean isPackageInstalledForUser(String packageName, int userHandle) { 9371 try { 9372 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 9373 userHandle); 9374 return (pi != null) && (pi.applicationInfo.flags != 0); 9375 } catch (RemoteException re) { 9376 throw new RuntimeException("Package manager has died", re); 9377 } 9378 } 9379 9380 @Override 9381 public boolean isProvisioningAllowed(String action, String packageName) { 9382 Preconditions.checkNotNull(packageName); 9383 9384 final int callingUid = mInjector.binderGetCallingUid(); 9385 final long ident = mInjector.binderClearCallingIdentity(); 9386 try { 9387 final int uidForPackage = mInjector.getPackageManager().getPackageUidAsUser( 9388 packageName, UserHandle.getUserId(callingUid)); 9389 Preconditions.checkArgument(callingUid == uidForPackage, 9390 "Caller uid doesn't match the one for the provided package."); 9391 } catch (NameNotFoundException e) { 9392 throw new IllegalArgumentException("Invalid package provided " + packageName, e); 9393 } finally { 9394 mInjector.binderRestoreCallingIdentity(ident); 9395 } 9396 9397 return checkProvisioningPreConditionSkipPermission(action, packageName) == CODE_OK; 9398 } 9399 9400 @Override 9401 public int checkProvisioningPreCondition(String action, String packageName) { 9402 Preconditions.checkNotNull(packageName); 9403 enforceCanManageProfileAndDeviceOwners(); 9404 return checkProvisioningPreConditionSkipPermission(action, packageName); 9405 } 9406 9407 private int checkProvisioningPreConditionSkipPermission(String action, String packageName) { 9408 if (!mHasFeature) { 9409 return CODE_DEVICE_ADMIN_NOT_SUPPORTED; 9410 } 9411 9412 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9413 if (action != null) { 9414 switch (action) { 9415 case DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE: 9416 return checkManagedProfileProvisioningPreCondition(packageName, callingUserId); 9417 case DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE: 9418 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 9419 case DevicePolicyManager.ACTION_PROVISION_MANAGED_USER: 9420 return checkManagedUserProvisioningPreCondition(callingUserId); 9421 case DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE: 9422 return checkManagedShareableDeviceProvisioningPreCondition(callingUserId); 9423 } 9424 } 9425 throw new IllegalArgumentException("Unknown provisioning action " + action); 9426 } 9427 9428 /** 9429 * The device owner can only be set before the setup phase of the primary user has completed, 9430 * except for adb command if no accounts or additional users are present on the device. 9431 */ 9432 private int checkDeviceOwnerProvisioningPreConditionLocked(@Nullable ComponentName owner, 9433 int deviceOwnerUserId, boolean isAdb, boolean hasIncompatibleAccountsOrNonAdb) { 9434 if (mOwners.hasDeviceOwner()) { 9435 return CODE_HAS_DEVICE_OWNER; 9436 } 9437 if (mOwners.hasProfileOwner(deviceOwnerUserId)) { 9438 return CODE_USER_HAS_PROFILE_OWNER; 9439 } 9440 if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) { 9441 return CODE_USER_NOT_RUNNING; 9442 } 9443 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 9444 return CODE_HAS_PAIRED; 9445 } 9446 if (isAdb) { 9447 // if shell command runs after user setup completed check device status. Otherwise, OK. 9448 if (mIsWatch || hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 9449 if (!mInjector.userManagerIsSplitSystemUser()) { 9450 if (mUserManager.getUserCount() > 1) { 9451 return CODE_NONSYSTEM_USER_EXISTS; 9452 } 9453 if (hasIncompatibleAccountsOrNonAdb) { 9454 return CODE_ACCOUNTS_NOT_EMPTY; 9455 } 9456 } else { 9457 // STOPSHIP Do proper check in split user mode 9458 } 9459 } 9460 return CODE_OK; 9461 } else { 9462 if (!mInjector.userManagerIsSplitSystemUser()) { 9463 // In non-split user mode, DO has to be user 0 9464 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) { 9465 return CODE_NOT_SYSTEM_USER; 9466 } 9467 // In non-split user mode, only provision DO before setup wizard completes 9468 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 9469 return CODE_USER_SETUP_COMPLETED; 9470 } 9471 } else { 9472 // STOPSHIP Do proper check in split user mode 9473 } 9474 return CODE_OK; 9475 } 9476 } 9477 9478 private int checkDeviceOwnerProvisioningPreCondition(int deviceOwnerUserId) { 9479 synchronized (this) { 9480 // hasIncompatibleAccountsOrNonAdb doesn't matter since the caller is not adb. 9481 return checkDeviceOwnerProvisioningPreConditionLocked(/* owner unknown */ null, 9482 deviceOwnerUserId, /* isAdb= */ false, 9483 /* hasIncompatibleAccountsOrNonAdb=*/ true); 9484 } 9485 } 9486 9487 private int checkManagedProfileProvisioningPreCondition(String packageName, int callingUserId) { 9488 if (!hasFeatureManagedUsers()) { 9489 return CODE_MANAGED_USERS_NOT_SUPPORTED; 9490 } 9491 if (callingUserId == UserHandle.USER_SYSTEM 9492 && mInjector.userManagerIsSplitSystemUser()) { 9493 // Managed-profiles cannot be setup on the system user. 9494 return CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 9495 } 9496 if (getProfileOwner(callingUserId) != null) { 9497 // Managed user cannot have a managed profile. 9498 return CODE_USER_HAS_PROFILE_OWNER; 9499 } 9500 9501 final long ident = mInjector.binderClearCallingIdentity(); 9502 try { 9503 final UserHandle callingUserHandle = UserHandle.of(callingUserId); 9504 final ComponentName ownerAdmin = getOwnerComponent(packageName, callingUserId); 9505 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_MANAGED_PROFILE, 9506 callingUserHandle)) { 9507 // An admin can initiate provisioning if it has set the restriction. 9508 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 9509 UserManager.DISALLOW_ADD_MANAGED_PROFILE, callingUserId)) { 9510 return CODE_ADD_MANAGED_PROFILE_DISALLOWED; 9511 } 9512 } 9513 boolean canRemoveProfile = true; 9514 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 9515 callingUserHandle)) { 9516 // We can remove a profile if the admin itself has set the restriction. 9517 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 9518 UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 9519 callingUserId)) { 9520 canRemoveProfile = false; 9521 } 9522 } 9523 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, canRemoveProfile)) { 9524 return CODE_CANNOT_ADD_MANAGED_PROFILE; 9525 } 9526 } finally { 9527 mInjector.binderRestoreCallingIdentity(ident); 9528 } 9529 return CODE_OK; 9530 } 9531 9532 private ComponentName getOwnerComponent(String packageName, int userId) { 9533 if (isDeviceOwnerPackage(packageName, userId)) { 9534 return mOwners.getDeviceOwnerComponent(); 9535 } 9536 if (isProfileOwnerPackage(packageName, userId)) { 9537 return mOwners.getProfileOwnerComponent(userId); 9538 } 9539 return null; 9540 } 9541 9542 private int checkManagedUserProvisioningPreCondition(int callingUserId) { 9543 if (!hasFeatureManagedUsers()) { 9544 return CODE_MANAGED_USERS_NOT_SUPPORTED; 9545 } 9546 if (!mInjector.userManagerIsSplitSystemUser()) { 9547 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 9548 return CODE_NOT_SYSTEM_USER_SPLIT; 9549 } 9550 if (callingUserId == UserHandle.USER_SYSTEM) { 9551 // System user cannot be a managed user. 9552 return CODE_SYSTEM_USER; 9553 } 9554 if (hasUserSetupCompleted(callingUserId)) { 9555 return CODE_USER_SETUP_COMPLETED; 9556 } 9557 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 9558 return CODE_HAS_PAIRED; 9559 } 9560 return CODE_OK; 9561 } 9562 9563 private int checkManagedShareableDeviceProvisioningPreCondition(int callingUserId) { 9564 if (!mInjector.userManagerIsSplitSystemUser()) { 9565 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 9566 return CODE_NOT_SYSTEM_USER_SPLIT; 9567 } 9568 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 9569 } 9570 9571 private boolean hasFeatureManagedUsers() { 9572 try { 9573 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 9574 } catch (RemoteException e) { 9575 return false; 9576 } 9577 } 9578 9579 @Override 9580 public String getWifiMacAddress(ComponentName admin) { 9581 // Make sure caller has DO. 9582 synchronized (this) { 9583 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9584 } 9585 9586 final long ident = mInjector.binderClearCallingIdentity(); 9587 try { 9588 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 9589 if (wifiInfo == null) { 9590 return null; 9591 } 9592 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 9593 } finally { 9594 mInjector.binderRestoreCallingIdentity(ident); 9595 } 9596 } 9597 9598 /** 9599 * Returns the target sdk version number that the given packageName was built for 9600 * in the given user. 9601 */ 9602 private int getTargetSdk(String packageName, int userId) { 9603 final ApplicationInfo ai; 9604 try { 9605 ai = mIPackageManager.getApplicationInfo(packageName, 0, userId); 9606 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 9607 return targetSdkVersion; 9608 } catch (RemoteException e) { 9609 // Shouldn't happen 9610 return 0; 9611 } 9612 } 9613 9614 @Override 9615 public boolean isManagedProfile(ComponentName admin) { 9616 enforceProfileOrDeviceOwner(admin); 9617 return isManagedProfile(mInjector.userHandleGetCallingUserId()); 9618 } 9619 9620 @Override 9621 public boolean isSystemOnlyUser(ComponentName admin) { 9622 synchronized (this) { 9623 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9624 } 9625 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9626 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 9627 } 9628 9629 @Override 9630 public void reboot(ComponentName admin) { 9631 Preconditions.checkNotNull(admin); 9632 // Make sure caller has DO. 9633 synchronized (this) { 9634 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9635 } 9636 long ident = mInjector.binderClearCallingIdentity(); 9637 try { 9638 // Make sure there are no ongoing calls on the device. 9639 if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { 9640 throw new IllegalStateException("Cannot be called with ongoing call on the device"); 9641 } 9642 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 9643 } finally { 9644 mInjector.binderRestoreCallingIdentity(ident); 9645 } 9646 } 9647 9648 @Override 9649 public void setShortSupportMessage(@NonNull ComponentName who, CharSequence message) { 9650 if (!mHasFeature) { 9651 return; 9652 } 9653 Preconditions.checkNotNull(who, "ComponentName is null"); 9654 final int userHandle = mInjector.userHandleGetCallingUserId(); 9655 synchronized (this) { 9656 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9657 mInjector.binderGetCallingUid()); 9658 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 9659 admin.shortSupportMessage = message; 9660 saveSettingsLocked(userHandle); 9661 } 9662 } 9663 } 9664 9665 @Override 9666 public CharSequence getShortSupportMessage(@NonNull ComponentName who) { 9667 if (!mHasFeature) { 9668 return null; 9669 } 9670 Preconditions.checkNotNull(who, "ComponentName is null"); 9671 synchronized (this) { 9672 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9673 mInjector.binderGetCallingUid()); 9674 return admin.shortSupportMessage; 9675 } 9676 } 9677 9678 @Override 9679 public void setLongSupportMessage(@NonNull ComponentName who, CharSequence message) { 9680 if (!mHasFeature) { 9681 return; 9682 } 9683 Preconditions.checkNotNull(who, "ComponentName is null"); 9684 final int userHandle = mInjector.userHandleGetCallingUserId(); 9685 synchronized (this) { 9686 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9687 mInjector.binderGetCallingUid()); 9688 if (!TextUtils.equals(admin.longSupportMessage, message)) { 9689 admin.longSupportMessage = message; 9690 saveSettingsLocked(userHandle); 9691 } 9692 } 9693 } 9694 9695 @Override 9696 public CharSequence getLongSupportMessage(@NonNull ComponentName who) { 9697 if (!mHasFeature) { 9698 return null; 9699 } 9700 Preconditions.checkNotNull(who, "ComponentName is null"); 9701 synchronized (this) { 9702 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9703 mInjector.binderGetCallingUid()); 9704 return admin.longSupportMessage; 9705 } 9706 } 9707 9708 @Override 9709 public CharSequence getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 9710 if (!mHasFeature) { 9711 return null; 9712 } 9713 Preconditions.checkNotNull(who, "ComponentName is null"); 9714 if (!isCallerWithSystemUid()) { 9715 throw new SecurityException("Only the system can query support message for user"); 9716 } 9717 synchronized (this) { 9718 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 9719 if (admin != null) { 9720 return admin.shortSupportMessage; 9721 } 9722 } 9723 return null; 9724 } 9725 9726 @Override 9727 public CharSequence getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 9728 if (!mHasFeature) { 9729 return null; 9730 } 9731 Preconditions.checkNotNull(who, "ComponentName is null"); 9732 if (!isCallerWithSystemUid()) { 9733 throw new SecurityException("Only the system can query support message for user"); 9734 } 9735 synchronized (this) { 9736 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 9737 if (admin != null) { 9738 return admin.longSupportMessage; 9739 } 9740 } 9741 return null; 9742 } 9743 9744 @Override 9745 public void setOrganizationColor(@NonNull ComponentName who, int color) { 9746 if (!mHasFeature) { 9747 return; 9748 } 9749 Preconditions.checkNotNull(who, "ComponentName is null"); 9750 final int userHandle = mInjector.userHandleGetCallingUserId(); 9751 enforceManagedProfile(userHandle, "set organization color"); 9752 synchronized (this) { 9753 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9754 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9755 admin.organizationColor = color; 9756 saveSettingsLocked(userHandle); 9757 } 9758 } 9759 9760 @Override 9761 public void setOrganizationColorForUser(int color, int userId) { 9762 if (!mHasFeature) { 9763 return; 9764 } 9765 enforceFullCrossUsersPermission(userId); 9766 enforceManageUsers(); 9767 enforceManagedProfile(userId, "set organization color"); 9768 synchronized (this) { 9769 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9770 admin.organizationColor = color; 9771 saveSettingsLocked(userId); 9772 } 9773 } 9774 9775 @Override 9776 public int getOrganizationColor(@NonNull ComponentName who) { 9777 if (!mHasFeature) { 9778 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 9779 } 9780 Preconditions.checkNotNull(who, "ComponentName is null"); 9781 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 9782 synchronized (this) { 9783 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9784 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9785 return admin.organizationColor; 9786 } 9787 } 9788 9789 @Override 9790 public int getOrganizationColorForUser(int userHandle) { 9791 if (!mHasFeature) { 9792 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 9793 } 9794 enforceFullCrossUsersPermission(userHandle); 9795 enforceManagedProfile(userHandle, "get organization color"); 9796 synchronized (this) { 9797 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 9798 return (profileOwner != null) 9799 ? profileOwner.organizationColor 9800 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 9801 } 9802 } 9803 9804 @Override 9805 public void setOrganizationName(@NonNull ComponentName who, CharSequence text) { 9806 if (!mHasFeature) { 9807 return; 9808 } 9809 Preconditions.checkNotNull(who, "ComponentName is null"); 9810 final int userHandle = mInjector.userHandleGetCallingUserId(); 9811 9812 synchronized (this) { 9813 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9814 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9815 if (!TextUtils.equals(admin.organizationName, text)) { 9816 admin.organizationName = (text == null || text.length() == 0) 9817 ? null : text.toString(); 9818 saveSettingsLocked(userHandle); 9819 } 9820 } 9821 } 9822 9823 @Override 9824 public CharSequence getOrganizationName(@NonNull ComponentName who) { 9825 if (!mHasFeature) { 9826 return null; 9827 } 9828 Preconditions.checkNotNull(who, "ComponentName is null"); 9829 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 9830 synchronized(this) { 9831 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9832 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9833 return admin.organizationName; 9834 } 9835 } 9836 9837 @Override 9838 public CharSequence getDeviceOwnerOrganizationName() { 9839 if (!mHasFeature) { 9840 return null; 9841 } 9842 enforceDeviceOwnerOrManageUsers(); 9843 synchronized(this) { 9844 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 9845 return deviceOwnerAdmin == null ? null : deviceOwnerAdmin.organizationName; 9846 } 9847 } 9848 9849 @Override 9850 public CharSequence getOrganizationNameForUser(int userHandle) { 9851 if (!mHasFeature) { 9852 return null; 9853 } 9854 enforceFullCrossUsersPermission(userHandle); 9855 enforceManagedProfile(userHandle, "get organization name"); 9856 synchronized (this) { 9857 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 9858 return (profileOwner != null) 9859 ? profileOwner.organizationName 9860 : null; 9861 } 9862 } 9863 9864 @Override 9865 public void setAffiliationIds(ComponentName admin, List<String> ids) { 9866 if (!mHasFeature) { 9867 return; 9868 } 9869 9870 Preconditions.checkNotNull(admin); 9871 Preconditions.checkCollectionElementsNotNull(ids, "ids"); 9872 9873 final Set<String> affiliationIds = new ArraySet<String>(ids); 9874 Preconditions.checkArgument( 9875 !affiliationIds.contains(""), "ids must not contain empty strings"); 9876 9877 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9878 synchronized (this) { 9879 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9880 getUserData(callingUserId).mAffiliationIds = affiliationIds; 9881 saveSettingsLocked(callingUserId); 9882 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 9883 // Affiliation ids specified by the device owner are additionally stored in 9884 // UserHandle.USER_SYSTEM's DevicePolicyData. 9885 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 9886 saveSettingsLocked(UserHandle.USER_SYSTEM); 9887 } 9888 9889 // Affiliation status for any user, not just the calling user, might have changed. 9890 // The device owner user will still be affiliated after changing its affiliation ids, 9891 // but as a result of that other users might become affiliated or un-affiliated. 9892 maybePauseDeviceWideLoggingLocked(); 9893 maybeResumeDeviceWideLoggingLocked(); 9894 maybeClearLockTaskPackagesLocked(); 9895 } 9896 } 9897 9898 @Override 9899 public List<String> getAffiliationIds(ComponentName admin) { 9900 if (!mHasFeature) { 9901 return Collections.emptyList(); 9902 } 9903 9904 Preconditions.checkNotNull(admin); 9905 synchronized (this) { 9906 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9907 return new ArrayList<String>( 9908 getUserData(mInjector.userHandleGetCallingUserId()).mAffiliationIds); 9909 } 9910 } 9911 9912 @Override 9913 public boolean isAffiliatedUser() { 9914 if (!mHasFeature) { 9915 return false; 9916 } 9917 9918 synchronized (this) { 9919 return isUserAffiliatedWithDeviceLocked(mInjector.userHandleGetCallingUserId()); 9920 } 9921 } 9922 9923 private boolean isUserAffiliatedWithDeviceLocked(int userId) { 9924 if (!mOwners.hasDeviceOwner()) { 9925 return false; 9926 } 9927 if (userId == mOwners.getDeviceOwnerUserId()) { 9928 // The user that the DO is installed on is always affiliated with the device. 9929 return true; 9930 } 9931 if (userId == UserHandle.USER_SYSTEM) { 9932 // The system user is always affiliated in a DO device, even if the DO is set on a 9933 // different user. This could be the case if the DO is set in the primary user 9934 // of a split user device. 9935 return true; 9936 } 9937 final ComponentName profileOwner = getProfileOwner(userId); 9938 if (profileOwner == null) { 9939 return false; 9940 } 9941 final Set<String> userAffiliationIds = getUserData(userId).mAffiliationIds; 9942 final Set<String> deviceAffiliationIds = 9943 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 9944 for (String id : userAffiliationIds) { 9945 if (deviceAffiliationIds.contains(id)) { 9946 return true; 9947 } 9948 } 9949 return false; 9950 } 9951 9952 private boolean areAllUsersAffiliatedWithDeviceLocked() { 9953 final long ident = mInjector.binderClearCallingIdentity(); 9954 try { 9955 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 9956 for (int i = 0; i < userInfos.size(); i++) { 9957 int userId = userInfos.get(i).id; 9958 if (!isUserAffiliatedWithDeviceLocked(userId)) { 9959 Slog.d(LOG_TAG, "User id " + userId + " not affiliated."); 9960 return false; 9961 } 9962 } 9963 } finally { 9964 mInjector.binderRestoreCallingIdentity(ident); 9965 } 9966 9967 return true; 9968 } 9969 9970 @Override 9971 public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) { 9972 if (!mHasFeature) { 9973 return; 9974 } 9975 Preconditions.checkNotNull(admin); 9976 9977 synchronized (this) { 9978 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9979 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 9980 return; 9981 } 9982 mInjector.securityLogSetLoggingEnabledProperty(enabled); 9983 if (enabled) { 9984 mSecurityLogMonitor.start(); 9985 maybePauseDeviceWideLoggingLocked(); 9986 } else { 9987 mSecurityLogMonitor.stop(); 9988 } 9989 } 9990 } 9991 9992 @Override 9993 public boolean isSecurityLoggingEnabled(ComponentName admin) { 9994 if (!mHasFeature) { 9995 return false; 9996 } 9997 9998 Preconditions.checkNotNull(admin); 9999 synchronized (this) { 10000 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10001 return mInjector.securityLogGetLoggingEnabledProperty(); 10002 } 10003 } 10004 10005 private synchronized void recordSecurityLogRetrievalTime() { 10006 final long currentTime = System.currentTimeMillis(); 10007 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 10008 if (currentTime > policyData.mLastSecurityLogRetrievalTime) { 10009 policyData.mLastSecurityLogRetrievalTime = currentTime; 10010 saveSettingsLocked(UserHandle.USER_SYSTEM); 10011 } 10012 } 10013 10014 @Override 10015 public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) { 10016 if (!mHasFeature) { 10017 return null; 10018 } 10019 10020 Preconditions.checkNotNull(admin); 10021 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10022 10023 if (!mContext.getResources().getBoolean(R.bool.config_supportPreRebootSecurityLogs) 10024 || !mInjector.securityLogGetLoggingEnabledProperty()) { 10025 return null; 10026 } 10027 10028 recordSecurityLogRetrievalTime(); 10029 10030 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 10031 try { 10032 SecurityLog.readPreviousEvents(output); 10033 return new ParceledListSlice<SecurityEvent>(output); 10034 } catch (IOException e) { 10035 Slog.w(LOG_TAG, "Fail to read previous events" , e); 10036 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 10037 } 10038 } 10039 10040 @Override 10041 public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) { 10042 if (!mHasFeature) { 10043 return null; 10044 } 10045 10046 Preconditions.checkNotNull(admin); 10047 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10048 10049 if (!mInjector.securityLogGetLoggingEnabledProperty()) { 10050 return null; 10051 } 10052 10053 recordSecurityLogRetrievalTime(); 10054 10055 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 10056 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 10057 } 10058 10059 private void enforceCanManageDeviceAdmin() { 10060 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 10061 null); 10062 } 10063 10064 private void enforceCanManageProfileAndDeviceOwners() { 10065 mContext.enforceCallingOrSelfPermission( 10066 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 10067 } 10068 10069 private void enforceCallerSystemUserHandle() { 10070 final int callingUid = mInjector.binderGetCallingUid(); 10071 final int userId = UserHandle.getUserId(callingUid); 10072 if (userId != UserHandle.USER_SYSTEM) { 10073 throw new SecurityException("Caller has to be in user 0"); 10074 } 10075 } 10076 10077 @Override 10078 public boolean isUninstallInQueue(final String packageName) { 10079 enforceCanManageDeviceAdmin(); 10080 final int userId = mInjector.userHandleGetCallingUserId(); 10081 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10082 synchronized (this) { 10083 return mPackagesToRemove.contains(packageUserPair); 10084 } 10085 } 10086 10087 @Override 10088 public void uninstallPackageWithActiveAdmins(final String packageName) { 10089 enforceCanManageDeviceAdmin(); 10090 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 10091 10092 final int userId = mInjector.userHandleGetCallingUserId(); 10093 10094 enforceUserUnlocked(userId); 10095 10096 final ComponentName profileOwner = getProfileOwner(userId); 10097 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 10098 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 10099 } 10100 10101 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 10102 if (getDeviceOwnerUserId() == userId && deviceOwner != null 10103 && packageName.equals(deviceOwner.getPackageName())) { 10104 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 10105 } 10106 10107 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10108 synchronized (this) { 10109 mPackagesToRemove.add(packageUserPair); 10110 } 10111 10112 // All active admins on the user. 10113 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 10114 10115 // Active admins in the target package. 10116 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 10117 if (allActiveAdmins != null) { 10118 for (ComponentName activeAdmin : allActiveAdmins) { 10119 if (packageName.equals(activeAdmin.getPackageName())) { 10120 packageActiveAdmins.add(activeAdmin); 10121 removeActiveAdmin(activeAdmin, userId); 10122 } 10123 } 10124 } 10125 if (packageActiveAdmins.size() == 0) { 10126 startUninstallIntent(packageName, userId); 10127 } else { 10128 mHandler.postDelayed(new Runnable() { 10129 @Override 10130 public void run() { 10131 for (ComponentName activeAdmin : packageActiveAdmins) { 10132 removeAdminArtifacts(activeAdmin, userId); 10133 } 10134 startUninstallIntent(packageName, userId); 10135 } 10136 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 10137 } 10138 } 10139 10140 @Override 10141 public boolean isDeviceProvisioned() { 10142 synchronized (this) { 10143 return getUserDataUnchecked(UserHandle.USER_SYSTEM).mUserSetupComplete; 10144 } 10145 } 10146 10147 private void removePackageIfRequired(final String packageName, final int userId) { 10148 if (!packageHasActiveAdmins(packageName, userId)) { 10149 // Will not do anything if uninstall was not requested or was already started. 10150 startUninstallIntent(packageName, userId); 10151 } 10152 } 10153 10154 private void startUninstallIntent(final String packageName, final int userId) { 10155 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 10156 synchronized (this) { 10157 if (!mPackagesToRemove.contains(packageUserPair)) { 10158 // Do nothing if uninstall was not requested or was already started. 10159 return; 10160 } 10161 mPackagesToRemove.remove(packageUserPair); 10162 } 10163 try { 10164 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 10165 // Package does not exist. Nothing to do. 10166 return; 10167 } 10168 } catch (RemoteException re) { 10169 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 10170 } 10171 10172 try { // force stop the package before uninstalling 10173 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 10174 } catch (RemoteException re) { 10175 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 10176 } 10177 final Uri packageURI = Uri.parse("package:" + packageName); 10178 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 10179 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 10180 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 10181 } 10182 10183 /** 10184 * Removes the admin from the policy. Ideally called after the admin's 10185 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 10186 * 10187 * @param adminReceiver The admin to remove 10188 * @param userHandle The user for which this admin has to be removed. 10189 */ 10190 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 10191 synchronized (this) { 10192 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 10193 if (admin == null) { 10194 return; 10195 } 10196 final DevicePolicyData policy = getUserData(userHandle); 10197 final boolean doProxyCleanup = admin.info.usesPolicy( 10198 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 10199 policy.mAdminList.remove(admin); 10200 policy.mAdminMap.remove(adminReceiver); 10201 validatePasswordOwnerLocked(policy); 10202 if (doProxyCleanup) { 10203 resetGlobalProxyLocked(policy); 10204 } 10205 saveSettingsLocked(userHandle); 10206 updateMaximumTimeToLockLocked(userHandle); 10207 policy.mRemovingAdmins.remove(adminReceiver); 10208 10209 Slog.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle); 10210 } 10211 // The removed admin might have disabled camera, so update user 10212 // restrictions. 10213 pushUserRestrictions(userHandle); 10214 } 10215 10216 @Override 10217 public void setDeviceProvisioningConfigApplied() { 10218 enforceManageUsers(); 10219 synchronized (this) { 10220 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 10221 policy.mDeviceProvisioningConfigApplied = true; 10222 saveSettingsLocked(UserHandle.USER_SYSTEM); 10223 } 10224 } 10225 10226 @Override 10227 public boolean isDeviceProvisioningConfigApplied() { 10228 enforceManageUsers(); 10229 synchronized (this) { 10230 final DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 10231 return policy.mDeviceProvisioningConfigApplied; 10232 } 10233 } 10234 10235 /** 10236 * Force update internal persistent state from Settings.Secure.USER_SETUP_COMPLETE. 10237 * 10238 * It's added for testing only. Please use this API carefully if it's used by other system app 10239 * and bare in mind Settings.Secure.USER_SETUP_COMPLETE can be modified by user and other system 10240 * apps. 10241 */ 10242 @Override 10243 public void forceUpdateUserSetupComplete() { 10244 enforceCanManageProfileAndDeviceOwners(); 10245 enforceCallerSystemUserHandle(); 10246 // no effect if it's called from user build 10247 if (!mInjector.isBuildDebuggable()) { 10248 return; 10249 } 10250 final int userId = UserHandle.USER_SYSTEM; 10251 boolean isUserCompleted = mInjector.settingsSecureGetIntForUser( 10252 Settings.Secure.USER_SETUP_COMPLETE, 0, userId) != 0; 10253 DevicePolicyData policy = getUserData(userId); 10254 policy.mUserSetupComplete = isUserCompleted; 10255 synchronized (this) { 10256 saveSettingsLocked(userId); 10257 } 10258 } 10259 10260 // TODO(b/22388012): When backup is available for secondary users and profiles, consider 10261 // whether there are any privacy/security implications of enabling the backup service here 10262 // if there are other users or profiles unmanaged or managed by a different entity (i.e. not 10263 // affiliated). 10264 @Override 10265 public void setBackupServiceEnabled(ComponentName admin, boolean enabled) { 10266 if (!mHasFeature) { 10267 return; 10268 } 10269 Preconditions.checkNotNull(admin); 10270 synchronized (this) { 10271 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10272 } 10273 10274 final long ident = mInjector.binderClearCallingIdentity(); 10275 try { 10276 IBackupManager ibm = mInjector.getIBackupManager(); 10277 if (ibm != null) { 10278 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, enabled); 10279 } 10280 } catch (RemoteException e) { 10281 throw new IllegalStateException( 10282 "Failed " + (enabled ? "" : "de") + "activating backup service.", e); 10283 } finally { 10284 mInjector.binderRestoreCallingIdentity(ident); 10285 } 10286 } 10287 10288 @Override 10289 public boolean isBackupServiceEnabled(ComponentName admin) { 10290 Preconditions.checkNotNull(admin); 10291 if (!mHasFeature) { 10292 return true; 10293 } 10294 synchronized (this) { 10295 try { 10296 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10297 IBackupManager ibm = mInjector.getIBackupManager(); 10298 return ibm != null && ibm.isBackupServiceActive(UserHandle.USER_SYSTEM); 10299 } catch (RemoteException e) { 10300 throw new IllegalStateException("Failed requesting backup service state.", e); 10301 } 10302 } 10303 } 10304 10305 @Override 10306 public boolean bindDeviceAdminServiceAsUser( 10307 @NonNull ComponentName admin, @NonNull IApplicationThread caller, 10308 @Nullable IBinder activtiyToken, @NonNull Intent serviceIntent, 10309 @NonNull IServiceConnection connection, int flags, @UserIdInt int targetUserId) { 10310 if (!mHasFeature) { 10311 return false; 10312 } 10313 Preconditions.checkNotNull(admin); 10314 Preconditions.checkNotNull(caller); 10315 Preconditions.checkNotNull(serviceIntent); 10316 Preconditions.checkArgument( 10317 serviceIntent.getComponent() != null || serviceIntent.getPackage() != null, 10318 "Service intent must be explicit (with a package name or component): " 10319 + serviceIntent); 10320 Preconditions.checkNotNull(connection); 10321 Preconditions.checkArgument(mInjector.userHandleGetCallingUserId() != targetUserId, 10322 "target user id must be different from the calling user id"); 10323 10324 if (!getBindDeviceAdminTargetUsers(admin).contains(UserHandle.of(targetUserId))) { 10325 throw new SecurityException("Not allowed to bind to target user id"); 10326 } 10327 10328 final String targetPackage; 10329 synchronized (this) { 10330 targetPackage = getOwnerPackageNameForUserLocked(targetUserId); 10331 } 10332 10333 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10334 try { 10335 // Validate and sanitize the incoming service intent. 10336 final Intent sanitizedIntent = 10337 createCrossUserServiceIntent(serviceIntent, targetPackage, targetUserId); 10338 if (sanitizedIntent == null) { 10339 // Fail, cannot lookup the target service. 10340 return false; 10341 } 10342 // Ask ActivityManager to bind it. Notice that we are binding the service with the 10343 // caller app instead of DevicePolicyManagerService. 10344 return mInjector.getIActivityManager().bindService( 10345 caller, activtiyToken, serviceIntent, 10346 serviceIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 10347 connection, flags, mContext.getOpPackageName(), 10348 targetUserId) != 0; 10349 } catch (RemoteException ex) { 10350 // Same process, should not happen. 10351 } finally { 10352 mInjector.binderRestoreCallingIdentity(callingIdentity); 10353 } 10354 10355 // Failed to bind. 10356 return false; 10357 } 10358 10359 @Override 10360 public @NonNull List<UserHandle> getBindDeviceAdminTargetUsers(@NonNull ComponentName admin) { 10361 if (!mHasFeature) { 10362 return Collections.emptyList(); 10363 } 10364 Preconditions.checkNotNull(admin); 10365 10366 synchronized (this) { 10367 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10368 10369 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10370 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10371 try { 10372 ArrayList<UserHandle> targetUsers = new ArrayList<>(); 10373 if (!isDeviceOwner(admin, callingUserId)) { 10374 // Profile owners can only bind to the device owner. 10375 if (canUserBindToDeviceOwnerLocked(callingUserId)) { 10376 targetUsers.add(UserHandle.of(mOwners.getDeviceOwnerUserId())); 10377 } 10378 } else { 10379 // Caller is the device owner: Look for profile owners that it can bind to. 10380 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 10381 for (int i = 0; i < userInfos.size(); i++) { 10382 final int userId = userInfos.get(i).id; 10383 if (userId != callingUserId && canUserBindToDeviceOwnerLocked(userId)) { 10384 targetUsers.add(UserHandle.of(userId)); 10385 } 10386 } 10387 } 10388 10389 return targetUsers; 10390 } finally { 10391 mInjector.binderRestoreCallingIdentity(callingIdentity); 10392 } 10393 } 10394 } 10395 10396 private boolean canUserBindToDeviceOwnerLocked(int userId) { 10397 // There has to be a device owner, under another user id. 10398 if (!mOwners.hasDeviceOwner() || userId == mOwners.getDeviceOwnerUserId()) { 10399 return false; 10400 } 10401 10402 // The user must have a profile owner that belongs to the same package as the device owner. 10403 if (!mOwners.hasProfileOwner(userId) || !TextUtils.equals( 10404 mOwners.getDeviceOwnerPackageName(), mOwners.getProfileOwnerPackage(userId))) { 10405 return false; 10406 } 10407 10408 // The user must be affiliated. 10409 return isUserAffiliatedWithDeviceLocked(userId); 10410 } 10411 10412 /** 10413 * Return true if a given user has any accounts that'll prevent installing a device or profile 10414 * owner {@code owner}. 10415 * - If the user has no accounts, then return false. 10416 * - Otherwise, if the owner is unknown (== null), or is not test-only, then return true. 10417 * - Otherwise, if there's any account that does not have ..._ALLOWED, or does have 10418 * ..._DISALLOWED, return true. 10419 * - Otherwise return false. 10420 * 10421 * If the caller is *not* ADB, it also returns true. The returned value shouldn't be used 10422 * when the caller is not ADB. 10423 * 10424 * DO NOT CALL IT WITH THE DPMS LOCK HELD. 10425 */ 10426 private boolean hasIncompatibleAccountsOrNonAdbNoLock( 10427 int userId, @Nullable ComponentName owner) { 10428 if (!isAdb()) { 10429 return true; 10430 } 10431 wtfIfInLock(); 10432 10433 final long token = mInjector.binderClearCallingIdentity(); 10434 try { 10435 final AccountManager am = AccountManager.get(mContext); 10436 final Account accounts[] = am.getAccountsAsUser(userId); 10437 if (accounts.length == 0) { 10438 return false; 10439 } 10440 synchronized (this) { 10441 if (owner == null || !isAdminTestOnlyLocked(owner, userId)) { 10442 Log.w(LOG_TAG, 10443 "Non test-only owner can't be installed with existing accounts."); 10444 return true; 10445 } 10446 } 10447 10448 final String[] feature_allow = 10449 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_ALLOWED }; 10450 final String[] feature_disallow = 10451 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_DISALLOWED }; 10452 10453 boolean compatible = true; 10454 for (Account account : accounts) { 10455 if (hasAccountFeatures(am, account, feature_disallow)) { 10456 Log.e(LOG_TAG, account + " has " + feature_disallow[0]); 10457 compatible = false; 10458 break; 10459 } 10460 if (!hasAccountFeatures(am, account, feature_allow)) { 10461 Log.e(LOG_TAG, account + " doesn't have " + feature_allow[0]); 10462 compatible = false; 10463 break; 10464 } 10465 } 10466 if (compatible) { 10467 Log.w(LOG_TAG, "All accounts are compatible"); 10468 } else { 10469 Log.e(LOG_TAG, "Found incompatible accounts"); 10470 } 10471 return !compatible; 10472 } finally { 10473 mInjector.binderRestoreCallingIdentity(token); 10474 } 10475 } 10476 10477 private boolean hasAccountFeatures(AccountManager am, Account account, String[] features) { 10478 try { 10479 return am.hasFeatures(account, features, null, null).getResult(); 10480 } catch (Exception e) { 10481 Log.w(LOG_TAG, "Failed to get account feature", e); 10482 return false; 10483 } 10484 } 10485 10486 private boolean isAdb() { 10487 final int callingUid = mInjector.binderGetCallingUid(); 10488 return callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID; 10489 } 10490 10491 @Override 10492 public synchronized void setNetworkLoggingEnabled(ComponentName admin, boolean enabled) { 10493 if (!mHasFeature) { 10494 return; 10495 } 10496 Preconditions.checkNotNull(admin); 10497 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10498 10499 if (enabled == isNetworkLoggingEnabledInternalLocked()) { 10500 // already in the requested state 10501 return; 10502 } 10503 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10504 deviceOwner.isNetworkLoggingEnabled = enabled; 10505 if (!enabled) { 10506 deviceOwner.numNetworkLoggingNotifications = 0; 10507 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 10508 } 10509 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 10510 10511 setNetworkLoggingActiveInternal(enabled); 10512 } 10513 10514 private synchronized void setNetworkLoggingActiveInternal(boolean active) { 10515 final long callingIdentity = mInjector.binderClearCallingIdentity(); 10516 try { 10517 if (active) { 10518 mNetworkLogger = new NetworkLogger(this, mInjector.getPackageManagerInternal()); 10519 if (!mNetworkLogger.startNetworkLogging()) { 10520 mNetworkLogger = null; 10521 Slog.wtf(LOG_TAG, "Network logging could not be started due to the logging" 10522 + " service not being available yet."); 10523 } 10524 maybePauseDeviceWideLoggingLocked(); 10525 sendNetworkLoggingNotificationLocked(); 10526 } else { 10527 if (mNetworkLogger != null && !mNetworkLogger.stopNetworkLogging()) { 10528 Slog.wtf(LOG_TAG, "Network logging could not be stopped due to the logging" 10529 + " service not being available yet."); 10530 } 10531 mNetworkLogger = null; 10532 mInjector.getNotificationManager().cancel(NETWORK_LOGGING_NOTIFICATION_ID); 10533 } 10534 } finally { 10535 mInjector.binderRestoreCallingIdentity(callingIdentity); 10536 } 10537 } 10538 10539 /** Pauses security and network logging if there are unaffiliated users on the device */ 10540 private void maybePauseDeviceWideLoggingLocked() { 10541 if (!areAllUsersAffiliatedWithDeviceLocked()) { 10542 Slog.i(LOG_TAG, "There are unaffiliated users, security and network logging will be " 10543 + "paused if enabled."); 10544 mSecurityLogMonitor.pause(); 10545 if (mNetworkLogger != null) { 10546 mNetworkLogger.pause(); 10547 } 10548 } 10549 } 10550 10551 /** Resumes security and network logging (if they are enabled) if all users are affiliated */ 10552 private void maybeResumeDeviceWideLoggingLocked() { 10553 if (areAllUsersAffiliatedWithDeviceLocked()) { 10554 final long ident = mInjector.binderClearCallingIdentity(); 10555 try { 10556 mSecurityLogMonitor.resume(); 10557 if (mNetworkLogger != null) { 10558 mNetworkLogger.resume(); 10559 } 10560 } finally { 10561 mInjector.binderRestoreCallingIdentity(ident); 10562 } 10563 } 10564 } 10565 10566 /** Deletes any security and network logs that might have been collected so far */ 10567 private void discardDeviceWideLogsLocked() { 10568 mSecurityLogMonitor.discardLogs(); 10569 if (mNetworkLogger != null) { 10570 mNetworkLogger.discardLogs(); 10571 } 10572 // TODO: We should discard pre-boot security logs here too, as otherwise those 10573 // logs (which might contain data from the user just removed) will be 10574 // available after next boot. 10575 } 10576 10577 @Override 10578 public boolean isNetworkLoggingEnabled(ComponentName admin) { 10579 if (!mHasFeature) { 10580 return false; 10581 } 10582 synchronized (this) { 10583 enforceDeviceOwnerOrManageUsers(); 10584 return isNetworkLoggingEnabledInternalLocked(); 10585 } 10586 } 10587 10588 private boolean isNetworkLoggingEnabledInternalLocked() { 10589 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10590 return (deviceOwner != null) && deviceOwner.isNetworkLoggingEnabled; 10591 } 10592 10593 /* 10594 * A maximum of 1200 events are returned, and the total marshalled size is in the order of 10595 * 100kB, so returning a List instead of ParceledListSlice is acceptable. 10596 * Ideally this would be done with ParceledList, however it only supports homogeneous types. 10597 * 10598 * @see NetworkLoggingHandler#MAX_EVENTS_PER_BATCH 10599 */ 10600 @Override 10601 public List<NetworkEvent> retrieveNetworkLogs(ComponentName admin, long batchToken) { 10602 if (!mHasFeature) { 10603 return null; 10604 } 10605 Preconditions.checkNotNull(admin); 10606 ensureDeviceOwnerAndAllUsersAffiliated(admin); 10607 10608 synchronized (this) { 10609 if (mNetworkLogger == null 10610 || !isNetworkLoggingEnabledInternalLocked()) { 10611 return null; 10612 } 10613 10614 final long currentTime = System.currentTimeMillis(); 10615 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 10616 if (currentTime > policyData.mLastNetworkLogsRetrievalTime) { 10617 policyData.mLastNetworkLogsRetrievalTime = currentTime; 10618 saveSettingsLocked(UserHandle.USER_SYSTEM); 10619 } 10620 return mNetworkLogger.retrieveLogs(batchToken); 10621 } 10622 } 10623 10624 private void sendNetworkLoggingNotificationLocked() { 10625 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 10626 if (deviceOwner == null || !deviceOwner.isNetworkLoggingEnabled) { 10627 return; 10628 } 10629 if (deviceOwner.numNetworkLoggingNotifications >= 10630 ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 10631 return; 10632 } 10633 final long now = System.currentTimeMillis(); 10634 if (now - deviceOwner.lastNetworkLoggingNotificationTimeMs < MS_PER_DAY) { 10635 return; 10636 } 10637 deviceOwner.numNetworkLoggingNotifications++; 10638 if (deviceOwner.numNetworkLoggingNotifications 10639 >= ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 10640 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 10641 } else { 10642 deviceOwner.lastNetworkLoggingNotificationTimeMs = now; 10643 } 10644 final Intent intent = new Intent(DevicePolicyManager.ACTION_SHOW_DEVICE_MONITORING_DIALOG); 10645 intent.setPackage("com.android.systemui"); 10646 final PendingIntent pendingIntent = PendingIntent.getBroadcastAsUser(mContext, 0, intent, 0, 10647 UserHandle.CURRENT); 10648 Notification notification = new Notification.Builder(mContext) 10649 .setSmallIcon(R.drawable.ic_qs_network_logging) 10650 .setContentTitle(mContext.getString(R.string.network_logging_notification_title)) 10651 .setContentText(mContext.getString(R.string.network_logging_notification_text)) 10652 .setTicker(mContext.getString(R.string.network_logging_notification_title)) 10653 .setShowWhen(true) 10654 .setContentIntent(pendingIntent) 10655 .build(); 10656 mInjector.getNotificationManager().notify(NETWORK_LOGGING_NOTIFICATION_ID, notification); 10657 saveSettingsLocked(mOwners.getDeviceOwnerUserId()); 10658 } 10659 10660 /** 10661 * Return the package name of owner in a given user. 10662 */ 10663 private String getOwnerPackageNameForUserLocked(int userId) { 10664 return mOwners.getDeviceOwnerUserId() == userId 10665 ? mOwners.getDeviceOwnerPackageName() 10666 : mOwners.getProfileOwnerPackage(userId); 10667 } 10668 10669 /** 10670 * @param rawIntent Original service intent specified by caller. It must be explicit. 10671 * @param expectedPackageName The expected package name of the resolved service. 10672 * @return Intent that have component explicitly set. {@code null} if no service is resolved 10673 * with the given intent. 10674 * @throws SecurityException if the intent is resolved to an invalid service. 10675 */ 10676 private Intent createCrossUserServiceIntent( 10677 @NonNull Intent rawIntent, @NonNull String expectedPackageName, 10678 @UserIdInt int targetUserId) throws RemoteException, SecurityException { 10679 ResolveInfo info = mIPackageManager.resolveService( 10680 rawIntent, 10681 rawIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 10682 0, // flags 10683 targetUserId); 10684 if (info == null || info.serviceInfo == null) { 10685 Log.e(LOG_TAG, "Fail to look up the service: " + rawIntent 10686 + " or user " + targetUserId + " is not running"); 10687 return null; 10688 } 10689 if (!expectedPackageName.equals(info.serviceInfo.packageName)) { 10690 throw new SecurityException("Only allow to bind service in " + expectedPackageName); 10691 } 10692 if (info.serviceInfo.exported) { 10693 throw new SecurityException("The service must be unexported"); 10694 } 10695 // It is the system server to bind the service, it would be extremely dangerous if it 10696 // can be exploited to bind any service. Set the component explicitly to make sure we 10697 // do not bind anything accidentally. 10698 rawIntent.setComponent(info.serviceInfo.getComponentName()); 10699 return rawIntent; 10700 } 10701 10702 @Override 10703 public long getLastSecurityLogRetrievalTime() { 10704 enforceDeviceOwnerOrManageUsers(); 10705 return getUserData(UserHandle.USER_SYSTEM).mLastSecurityLogRetrievalTime; 10706 } 10707 10708 @Override 10709 public long getLastBugReportRequestTime() { 10710 enforceDeviceOwnerOrManageUsers(); 10711 return getUserData(UserHandle.USER_SYSTEM).mLastBugReportRequestTime; 10712 } 10713 10714 @Override 10715 public long getLastNetworkLogRetrievalTime() { 10716 enforceDeviceOwnerOrManageUsers(); 10717 return getUserData(UserHandle.USER_SYSTEM).mLastNetworkLogsRetrievalTime; 10718 } 10719 10720 @Override 10721 public boolean setResetPasswordToken(ComponentName admin, byte[] token) { 10722 if (!mHasFeature) { 10723 return false; 10724 } 10725 if (token == null || token.length < 32) { 10726 throw new IllegalArgumentException("token must be at least 32-byte long"); 10727 } 10728 synchronized (this) { 10729 final int userHandle = mInjector.userHandleGetCallingUserId(); 10730 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10731 10732 DevicePolicyData policy = getUserData(userHandle); 10733 long ident = mInjector.binderClearCallingIdentity(); 10734 try { 10735 if (policy.mPasswordTokenHandle != 0) { 10736 mLockPatternUtils.removeEscrowToken(policy.mPasswordTokenHandle, userHandle); 10737 } 10738 10739 policy.mPasswordTokenHandle = mLockPatternUtils.addEscrowToken(token, userHandle); 10740 saveSettingsLocked(userHandle); 10741 return policy.mPasswordTokenHandle != 0; 10742 } finally { 10743 mInjector.binderRestoreCallingIdentity(ident); 10744 } 10745 } 10746 } 10747 10748 @Override 10749 public boolean clearResetPasswordToken(ComponentName admin) { 10750 if (!mHasFeature) { 10751 return false; 10752 } 10753 synchronized (this) { 10754 final int userHandle = mInjector.userHandleGetCallingUserId(); 10755 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10756 10757 DevicePolicyData policy = getUserData(userHandle); 10758 if (policy.mPasswordTokenHandle != 0) { 10759 long ident = mInjector.binderClearCallingIdentity(); 10760 try { 10761 boolean result = mLockPatternUtils.removeEscrowToken( 10762 policy.mPasswordTokenHandle, userHandle); 10763 policy.mPasswordTokenHandle = 0; 10764 saveSettingsLocked(userHandle); 10765 return result; 10766 } finally { 10767 mInjector.binderRestoreCallingIdentity(ident); 10768 } 10769 } 10770 } 10771 return false; 10772 } 10773 10774 @Override 10775 public boolean isResetPasswordTokenActive(ComponentName admin) { 10776 synchronized (this) { 10777 final int userHandle = mInjector.userHandleGetCallingUserId(); 10778 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10779 10780 DevicePolicyData policy = getUserData(userHandle); 10781 if (policy.mPasswordTokenHandle != 0) { 10782 long ident = mInjector.binderClearCallingIdentity(); 10783 try { 10784 return mLockPatternUtils.isEscrowTokenActive(policy.mPasswordTokenHandle, 10785 userHandle); 10786 } finally { 10787 mInjector.binderRestoreCallingIdentity(ident); 10788 } 10789 } 10790 } 10791 return false; 10792 } 10793 10794 @Override 10795 public boolean resetPasswordWithToken(ComponentName admin, String passwordOrNull, byte[] token, 10796 int flags) { 10797 Preconditions.checkNotNull(token); 10798 synchronized (this) { 10799 final int userHandle = mInjector.userHandleGetCallingUserId(); 10800 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10801 10802 DevicePolicyData policy = getUserData(userHandle); 10803 if (policy.mPasswordTokenHandle != 0) { 10804 final String password = passwordOrNull != null ? passwordOrNull : ""; 10805 return resetPasswordInternal(password, policy.mPasswordTokenHandle, token, 10806 flags, mInjector.binderGetCallingUid(), userHandle); 10807 } else { 10808 Slog.w(LOG_TAG, "No saved token handle"); 10809 } 10810 } 10811 return false; 10812 } 10813 10814 @Override 10815 public boolean isDefaultInputMethodSetByOwner(@NonNull UserHandle user) { 10816 final int userId = user.getIdentifier(); 10817 enforceProfileOwnerOrSystemUser(null); 10818 if (!isCallerWithSystemUid() && mInjector.userHandleGetCallingUserId() != userId) { 10819 throw new SecurityException( 10820 "Only the system can use this method to query information about another user"); 10821 } 10822 return getUserData(userId).mDefaultInputMethodSet; 10823 } 10824} 10825