DevicePolicyManagerService.java revision 98a145b5afb71b5fb95092d9df0e6453dad77f79
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.PASSWORD_QUALITY_COMPLEX; 21import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 22import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 23import static android.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES; 24 25import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 26import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 27import static org.xmlpull.v1.XmlPullParser.END_TAG; 28import static org.xmlpull.v1.XmlPullParser.TEXT; 29 30import android.Manifest.permission; 31import android.accessibilityservice.AccessibilityServiceInfo; 32import android.accounts.Account; 33import android.accounts.AccountManager; 34import android.annotation.IntDef; 35import android.annotation.NonNull; 36import android.annotation.Nullable; 37import android.annotation.UserIdInt; 38import android.app.Activity; 39import android.app.ActivityManager; 40import android.app.ActivityManagerNative; 41import android.app.AlarmManager; 42import android.app.AppGlobals; 43import android.app.IActivityManager; 44import android.app.Notification; 45import android.app.NotificationManager; 46import android.app.PendingIntent; 47import android.app.StatusBarManager; 48import android.app.admin.DeviceAdminInfo; 49import android.app.admin.DeviceAdminReceiver; 50import android.app.admin.DevicePolicyManager; 51import android.app.admin.DevicePolicyManagerInternal; 52import android.app.admin.IDevicePolicyManager; 53import android.app.admin.SecurityLog; 54import android.app.admin.SecurityLog.SecurityEvent; 55import android.app.admin.SystemUpdatePolicy; 56import android.app.backup.IBackupManager; 57import android.app.trust.TrustManager; 58import android.content.BroadcastReceiver; 59import android.content.ComponentName; 60import android.content.Context; 61import android.content.Intent; 62import android.content.IntentFilter; 63import android.content.pm.ActivityInfo; 64import android.content.pm.ApplicationInfo; 65import android.content.pm.IPackageManager; 66import android.content.pm.PackageInfo; 67import android.content.pm.PackageManager; 68import android.content.pm.PackageManager.NameNotFoundException; 69import android.content.pm.PackageManagerInternal; 70import android.content.pm.ParceledListSlice; 71import android.content.pm.ResolveInfo; 72import android.content.pm.ServiceInfo; 73import android.content.pm.UserInfo; 74import android.database.ContentObserver; 75import android.graphics.Bitmap; 76import android.graphics.Color; 77import android.media.AudioManager; 78import android.media.IAudioService; 79import android.net.ConnectivityManager; 80import android.net.ProxyInfo; 81import android.net.Uri; 82import android.net.wifi.WifiInfo; 83import android.net.wifi.WifiManager; 84import android.os.AsyncTask; 85import android.os.Binder; 86import android.os.Build; 87import android.os.Bundle; 88import android.os.Environment; 89import android.os.FileUtils; 90import android.os.Handler; 91import android.os.IBinder; 92import android.os.Looper; 93import android.os.ParcelFileDescriptor; 94import android.os.PersistableBundle; 95import android.os.PowerManager; 96import android.os.PowerManagerInternal; 97import android.os.Process; 98import android.os.RecoverySystem; 99import android.os.RemoteCallback; 100import android.os.RemoteException; 101import android.os.ServiceManager; 102import android.os.SystemClock; 103import android.os.SystemProperties; 104import android.os.UserHandle; 105import android.os.UserManager; 106import android.os.UserManagerInternal; 107import android.os.storage.StorageManager; 108import android.provider.ContactsContract.QuickContact; 109import android.provider.ContactsInternal; 110import android.provider.Settings; 111import android.security.Credentials; 112import android.security.IKeyChainAliasCallback; 113import android.security.IKeyChainService; 114import android.security.KeyChain; 115import android.security.KeyChain.KeyChainConnection; 116import android.service.persistentdata.PersistentDataBlockManager; 117import android.telephony.TelephonyManager; 118import android.text.TextUtils; 119import android.util.ArrayMap; 120import android.util.ArraySet; 121import android.util.Log; 122import android.util.Pair; 123import android.util.Slog; 124import android.util.SparseArray; 125import android.util.Xml; 126import android.view.IWindowManager; 127import android.view.accessibility.AccessibilityManager; 128import android.view.accessibility.IAccessibilityManager; 129import android.view.inputmethod.InputMethodInfo; 130import android.view.inputmethod.InputMethodManager; 131 132import com.android.internal.R; 133import com.android.internal.annotations.VisibleForTesting; 134import com.android.internal.statusbar.IStatusBarService; 135import com.android.internal.util.FastXmlSerializer; 136import com.android.internal.util.JournaledFile; 137import com.android.internal.util.ParcelableString; 138import com.android.internal.util.Preconditions; 139import com.android.internal.util.XmlUtils; 140import com.android.internal.widget.LockPatternUtils; 141import com.android.server.LocalServices; 142import com.android.server.SystemService; 143import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 144import com.android.server.pm.UserRestrictionsUtils; 145import com.google.android.collect.Sets; 146 147import org.xmlpull.v1.XmlPullParser; 148import org.xmlpull.v1.XmlPullParserException; 149import org.xmlpull.v1.XmlSerializer; 150 151import java.io.ByteArrayInputStream; 152import java.io.File; 153import java.io.FileDescriptor; 154import java.io.FileInputStream; 155import java.io.FileNotFoundException; 156import java.io.FileOutputStream; 157import java.io.IOException; 158import java.io.PrintWriter; 159import java.lang.annotation.Retention; 160import java.lang.annotation.RetentionPolicy; 161import java.nio.charset.StandardCharsets; 162import java.security.cert.CertificateException; 163import java.security.cert.CertificateFactory; 164import java.security.cert.X509Certificate; 165import java.text.DateFormat; 166import java.util.ArrayList; 167import java.util.Arrays; 168import java.util.Collections; 169import java.util.Date; 170import java.util.List; 171import java.util.Map.Entry; 172import java.util.Set; 173import java.util.concurrent.atomic.AtomicBoolean; 174 175/** 176 * Implementation of the device policy APIs. 177 */ 178public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 179 180 private static final String LOG_TAG = "DevicePolicyManagerService"; 181 182 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 183 184 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 185 186 private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate"; 187 188 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 189 190 private static final String TAG_STATUS_BAR = "statusbar"; 191 192 private static final String ATTR_DISABLED = "disabled"; 193 194 private static final String ATTR_NAME = "name"; 195 196 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 197 "do-not-ask-credentials-on-boot"; 198 199 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 200 201 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 202 203 private static final String ATTR_VALUE = "value"; 204 205 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 206 207 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 208 209 private static final long MS_PER_DAY = 86400 * 1000; 210 211 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 212 213 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 214 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 215 216 private static final int MONITORING_CERT_NOTIFICATION_ID = R.plurals.ssl_ca_cert_warning; 217 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 218 219 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 220 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 221 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 222 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 223 private static final String ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED = 224 "device-provisioning-config-applied"; 225 226 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 227 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 228 = "application-restrictions-manager"; 229 230 /** 231 * System property whose value is either "true" or "false", indicating whether 232 */ 233 private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner"; 234 235 private static final int STATUS_BAR_DISABLE_MASK = 236 StatusBarManager.DISABLE_EXPAND | 237 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 238 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 239 StatusBarManager.DISABLE_SEARCH; 240 241 private static final int STATUS_BAR_DISABLE2_MASK = 242 StatusBarManager.DISABLE2_QUICK_SETTINGS; 243 244 private static final Set<String> SECURE_SETTINGS_WHITELIST; 245 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 246 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 247 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 248 static { 249 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 250 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 251 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 252 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 253 254 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 255 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 256 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 257 258 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 259 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 260 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 261 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 262 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 263 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 264 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 265 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 266 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 267 268 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 269 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 270 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 271 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 272 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 273 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 274 } 275 276 /** 277 * Keyguard features that when set on a managed profile that doesn't have its own challenge will 278 * affect the profile's parent user. These can also be set on the managed profile's parent DPM 279 * instance. 280 */ 281 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 282 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 283 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 284 285 /** 286 * Keyguard features that when set on a profile affect the profile content or challenge only. 287 * These cannot be set on the managed profile's parent DPM instance 288 */ 289 private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY = 290 DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 291 292 /** Keyguard features that are allowed to be set on a managed profile */ 293 private static final int PROFILE_KEYGUARD_FEATURES = 294 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY; 295 296 private static final int CODE_OK = 0; 297 private static final int CODE_HAS_DEVICE_OWNER = 1; 298 private static final int CODE_USER_HAS_PROFILE_OWNER = 2; 299 private static final int CODE_USER_NOT_RUNNING = 3; 300 private static final int CODE_USER_SETUP_COMPLETED = 4; 301 private static final int CODE_NONSYSTEM_USER_EXISTS = 5; 302 private static final int CODE_ACCOUNTS_NOT_EMPTY = 6; 303 private static final int CODE_NOT_SYSTEM_USER = 7; 304 305 @Retention(RetentionPolicy.SOURCE) 306 @IntDef({ CODE_OK, CODE_HAS_DEVICE_OWNER, CODE_USER_HAS_PROFILE_OWNER, CODE_USER_NOT_RUNNING, 307 CODE_USER_SETUP_COMPLETED, CODE_NOT_SYSTEM_USER }) 308 private @interface DeviceOwnerPreConditionCode {} 309 310 private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000; 311 312 /** 313 * Minimum timeout in milliseconds after which unlocking with weak auth times out, 314 * i.e. the user has to use a strong authentication method like password, PIN or pattern. 315 */ 316 private static final long MINIMUM_STRONG_AUTH_TIMEOUT_MS = 1 * 60 * 60 * 1000; // 1h 317 318 final Context mContext; 319 final Injector mInjector; 320 final IPackageManager mIPackageManager; 321 final UserManager mUserManager; 322 final UserManagerInternal mUserManagerInternal; 323 final TelephonyManager mTelephonyManager; 324 private final LockPatternUtils mLockPatternUtils; 325 326 /** 327 * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p 328 * is requested for user u. 329 */ 330 private final Set<Pair<String, Integer>> mPackagesToRemove = 331 new ArraySet<Pair<String, Integer>>(); 332 333 final LocalService mLocalService; 334 335 // Stores and loads state on device and profile owners. 336 @VisibleForTesting 337 final Owners mOwners; 338 339 private final Binder mToken = new Binder(); 340 341 /** 342 * Whether or not device admin feature is supported. If it isn't return defaults for all 343 * public methods. 344 */ 345 boolean mHasFeature; 346 347 private final SecurityLogMonitor mSecurityLogMonitor; 348 349 private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean(); 350 private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean(); 351 352 private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() { 353 @Override 354 public void run() { 355 if(mRemoteBugreportServiceIsActive.get()) { 356 onBugreportFailed(); 357 } 358 } 359 }; 360 361 private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() { 362 363 @Override 364 public void onReceive(Context context, Intent intent) { 365 if (DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction()) 366 && mRemoteBugreportServiceIsActive.get()) { 367 onBugreportFinished(intent); 368 } 369 } 370 }; 371 372 private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() { 373 374 @Override 375 public void onReceive(Context context, Intent intent) { 376 String action = intent.getAction(); 377 mInjector.getNotificationManager().cancel(LOG_TAG, 378 RemoteBugreportUtils.NOTIFICATION_ID); 379 if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED.equals(action)) { 380 onBugreportSharingAccepted(); 381 } else if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED.equals(action)) { 382 onBugreportSharingDeclined(); 383 } 384 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 385 } 386 }; 387 388 public static final class Lifecycle extends SystemService { 389 private DevicePolicyManagerService mService; 390 391 public Lifecycle(Context context) { 392 super(context); 393 mService = new DevicePolicyManagerService(context); 394 } 395 396 @Override 397 public void onStart() { 398 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 399 } 400 401 @Override 402 public void onBootPhase(int phase) { 403 mService.systemReady(phase); 404 } 405 406 @Override 407 public void onStartUser(int userHandle) { 408 mService.onStartUser(userHandle); 409 } 410 } 411 412 public static class DevicePolicyData { 413 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 414 int mActivePasswordLength = 0; 415 int mActivePasswordUpperCase = 0; 416 int mActivePasswordLowerCase = 0; 417 int mActivePasswordLetters = 0; 418 int mActivePasswordNumeric = 0; 419 int mActivePasswordSymbols = 0; 420 int mActivePasswordNonLetter = 0; 421 int mFailedPasswordAttempts = 0; 422 423 int mUserHandle; 424 int mPasswordOwner = -1; 425 long mLastMaximumTimeToLock = -1; 426 boolean mUserSetupComplete = false; 427 int mUserProvisioningState; 428 int mPermissionPolicy; 429 430 boolean mDeviceProvisioningConfigApplied = false; 431 432 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 433 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 434 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 435 436 final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>(); 437 438 // This is the list of component allowed to start lock task mode. 439 List<String> mLockTaskPackages = new ArrayList<>(); 440 441 boolean mStatusBarDisabled = false; 442 443 ComponentName mRestrictionsProvider; 444 445 String mDelegatedCertInstallerPackage; 446 447 boolean doNotAskCredentialsOnBoot = false; 448 449 String mApplicationRestrictionsManagingPackage; 450 451 Set<String> mAffiliationIds = new ArraySet<>(); 452 453 // Used for initialization of users created by createAndManageUsers. 454 boolean mAdminBroadcastPending = false; 455 PersistableBundle mInitBundle = null; 456 457 public DevicePolicyData(int userHandle) { 458 mUserHandle = userHandle; 459 } 460 } 461 462 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 463 464 final Handler mHandler; 465 466 BroadcastReceiver mReceiver = new BroadcastReceiver() { 467 @Override 468 public void onReceive(Context context, Intent intent) { 469 final String action = intent.getAction(); 470 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 471 getSendingUserId()); 472 473 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 474 && userHandle == mOwners.getDeviceOwnerUserId() 475 && getDeviceOwnerRemoteBugreportUri() != null) { 476 IntentFilter filterConsent = new IntentFilter(); 477 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 478 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 479 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 480 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 481 RemoteBugreportUtils.NOTIFICATION_ID, 482 RemoteBugreportUtils.buildNotification(mContext, 483 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 484 UserHandle.ALL); 485 } 486 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 487 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 488 if (VERBOSE_LOG) { 489 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 490 + action + " for user " + userHandle); 491 } 492 mHandler.post(new Runnable() { 493 @Override 494 public void run() { 495 handlePasswordExpirationNotification(userHandle); 496 } 497 }); 498 } 499 if (Intent.ACTION_USER_UNLOCKED.equals(action) 500 || Intent.ACTION_USER_STARTED.equals(action) 501 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 502 int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 503 new MonitoringCertNotificationTask().execute(userId); 504 } 505 if (Intent.ACTION_USER_ADDED.equals(action)) { 506 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 507 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 508 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 509 removeUserData(userHandle); 510 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 511 synchronized (DevicePolicyManagerService.this) { 512 // Reset the policy data 513 mUserData.remove(userHandle); 514 sendAdminEnabledBroadcastLocked(userHandle); 515 } 516 handlePackagesChanged(null /* check all admins */, userHandle); 517 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 518 handlePackagesChanged(null /* check all admins */, userHandle); 519 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 520 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 521 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 522 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 523 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 524 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 525 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 526 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 527 clearWipeProfileNotification(); 528 } 529 } 530 }; 531 532 static class ActiveAdmin { 533 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 534 private static final String TAG_TEST_ONLY_ADMIN = "test-only-admin"; 535 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 536 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 537 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 538 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 539 = "disable-bt-contacts-sharing"; 540 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 541 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 542 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 543 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 544 private static final String TAG_ACCOUNT_TYPE = "account-type"; 545 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 546 = "permitted-accessiblity-services"; 547 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 548 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 549 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 550 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 551 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 552 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 553 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 554 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 555 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 556 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 557 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 558 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 559 private static final String TAG_STRONG_AUTH_UNLOCK_TIMEOUT = "strong-auth-unlock-timeout"; 560 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 561 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 562 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 563 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 564 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 565 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 566 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 567 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 568 private static final String ATTR_VALUE = "value"; 569 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 570 private static final String TAG_POLICIES = "policies"; 571 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 572 "cross-profile-widget-providers"; 573 private static final String TAG_PROVIDER = "provider"; 574 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 575 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 576 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 577 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 578 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 579 private static final String TAG_PARENT_ADMIN = "parent-admin"; 580 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 581 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 582 583 final DeviceAdminInfo info; 584 585 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 586 587 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 588 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 589 590 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 591 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 592 593 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 594 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 595 596 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 597 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 598 599 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 600 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 601 602 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 603 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 604 605 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 606 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 607 608 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 609 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 610 611 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 612 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 613 614 long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 615 616 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 617 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 618 619 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 620 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 621 622 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 623 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 624 625 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 626 627 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 628 629 boolean encryptionRequested = false; 630 boolean testOnlyAdmin = false; 631 boolean disableCamera = false; 632 boolean disableCallerId = false; 633 boolean disableContactsSearch = false; 634 boolean disableBluetoothContactSharing = true; 635 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 636 boolean requireAutoTime = false; // Can only be set by a device owner. 637 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 638 639 ActiveAdmin parentAdmin; 640 final boolean isParent; 641 642 static class TrustAgentInfo { 643 public PersistableBundle options; 644 TrustAgentInfo(PersistableBundle bundle) { 645 options = bundle; 646 } 647 } 648 649 Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 650 651 // The list of permitted accessibility services package namesas set by a profile 652 // or device owner. Null means all accessibility services are allowed, empty means 653 // none except system services are allowed. 654 List<String> permittedAccessiblityServices; 655 656 // The list of permitted input methods package names as set by a profile or device owner. 657 // Null means all input methods are allowed, empty means none except system imes are 658 // allowed. 659 List<String> permittedInputMethods; 660 661 // List of package names to keep cached. 662 List<String> keepUninstalledPackages; 663 664 // TODO: review implementation decisions with frameworks team 665 boolean specifiesGlobalProxy = false; 666 String globalProxySpec = null; 667 String globalProxyExclusionList = null; 668 669 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 670 671 List<String> crossProfileWidgetProviders; 672 673 Bundle userRestrictions; 674 675 // Support text provided by the admin to display to the user. 676 CharSequence shortSupportMessage = null; 677 CharSequence longSupportMessage = null; 678 679 // Background color of confirm credentials screen. Default: teal. 680 static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B"); 681 int organizationColor = DEF_ORGANIZATION_COLOR; 682 683 // Default title of confirm credentials screen 684 String organizationName = null; 685 686 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 687 info = _info; 688 isParent = parent; 689 } 690 691 ActiveAdmin getParentActiveAdmin() { 692 Preconditions.checkState(!isParent); 693 694 if (parentAdmin == null) { 695 parentAdmin = new ActiveAdmin(info, /* parent */ true); 696 } 697 return parentAdmin; 698 } 699 700 boolean hasParentActiveAdmin() { 701 return parentAdmin != null; 702 } 703 704 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 705 706 public UserHandle getUserHandle() { 707 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 708 } 709 710 void writeToXml(XmlSerializer out) 711 throws IllegalArgumentException, IllegalStateException, IOException { 712 out.startTag(null, TAG_POLICIES); 713 info.writePoliciesToXml(out); 714 out.endTag(null, TAG_POLICIES); 715 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 716 out.startTag(null, TAG_PASSWORD_QUALITY); 717 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 718 out.endTag(null, TAG_PASSWORD_QUALITY); 719 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 720 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 721 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 722 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 723 } 724 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 725 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 726 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 727 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 728 } 729 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 730 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 731 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 732 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 733 } 734 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 735 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 736 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 737 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 738 } 739 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 740 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 741 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 742 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 743 } 744 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 745 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 746 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 747 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 748 } 749 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 750 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 751 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 752 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 753 } 754 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 755 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 756 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 757 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 758 } 759 } 760 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 761 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 762 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 763 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 764 } 765 if (strongAuthUnlockTimeout != DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 766 out.startTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 767 out.attribute(null, ATTR_VALUE, Long.toString(strongAuthUnlockTimeout)); 768 out.endTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 769 } 770 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 771 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 772 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 773 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 774 } 775 if (specifiesGlobalProxy) { 776 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 777 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 778 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 779 if (globalProxySpec != null) { 780 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 781 out.attribute(null, ATTR_VALUE, globalProxySpec); 782 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 783 } 784 if (globalProxyExclusionList != null) { 785 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 786 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 787 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 788 } 789 } 790 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 791 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 792 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 793 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 794 } 795 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 796 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 797 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 798 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 799 } 800 if (encryptionRequested) { 801 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 802 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 803 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 804 } 805 if (testOnlyAdmin) { 806 out.startTag(null, TAG_TEST_ONLY_ADMIN); 807 out.attribute(null, ATTR_VALUE, Boolean.toString(testOnlyAdmin)); 808 out.endTag(null, TAG_TEST_ONLY_ADMIN); 809 } 810 if (disableCamera) { 811 out.startTag(null, TAG_DISABLE_CAMERA); 812 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 813 out.endTag(null, TAG_DISABLE_CAMERA); 814 } 815 if (disableCallerId) { 816 out.startTag(null, TAG_DISABLE_CALLER_ID); 817 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 818 out.endTag(null, TAG_DISABLE_CALLER_ID); 819 } 820 if (disableContactsSearch) { 821 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 822 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 823 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 824 } 825 if (!disableBluetoothContactSharing) { 826 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 827 out.attribute(null, ATTR_VALUE, 828 Boolean.toString(disableBluetoothContactSharing)); 829 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 830 } 831 if (disableScreenCapture) { 832 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 833 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 834 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 835 } 836 if (requireAutoTime) { 837 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 838 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 839 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 840 } 841 if (forceEphemeralUsers) { 842 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 843 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 844 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 845 } 846 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 847 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 848 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 849 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 850 } 851 if (!accountTypesWithManagementDisabled.isEmpty()) { 852 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 853 for (String ac : accountTypesWithManagementDisabled) { 854 out.startTag(null, TAG_ACCOUNT_TYPE); 855 out.attribute(null, ATTR_VALUE, ac); 856 out.endTag(null, TAG_ACCOUNT_TYPE); 857 } 858 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 859 } 860 if (!trustAgentInfos.isEmpty()) { 861 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 862 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 863 for (Entry<String, TrustAgentInfo> entry : set) { 864 TrustAgentInfo trustAgentInfo = entry.getValue(); 865 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 866 out.attribute(null, ATTR_VALUE, entry.getKey()); 867 if (trustAgentInfo.options != null) { 868 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 869 try { 870 trustAgentInfo.options.saveToXml(out); 871 } catch (XmlPullParserException e) { 872 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 873 } 874 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 875 } 876 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 877 } 878 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 879 } 880 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 881 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 882 final int providerCount = crossProfileWidgetProviders.size(); 883 for (int i = 0; i < providerCount; i++) { 884 String provider = crossProfileWidgetProviders.get(i); 885 out.startTag(null, TAG_PROVIDER); 886 out.attribute(null, ATTR_VALUE, provider); 887 out.endTag(null, TAG_PROVIDER); 888 } 889 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 890 } 891 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 892 permittedAccessiblityServices); 893 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 894 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 895 if (hasUserRestrictions()) { 896 UserRestrictionsUtils.writeRestrictions( 897 out, userRestrictions, TAG_USER_RESTRICTIONS); 898 } 899 if (!TextUtils.isEmpty(shortSupportMessage)) { 900 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 901 out.text(shortSupportMessage.toString()); 902 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 903 } 904 if (!TextUtils.isEmpty(longSupportMessage)) { 905 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 906 out.text(longSupportMessage.toString()); 907 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 908 } 909 if (parentAdmin != null) { 910 out.startTag(null, TAG_PARENT_ADMIN); 911 parentAdmin.writeToXml(out); 912 out.endTag(null, TAG_PARENT_ADMIN); 913 } 914 if (organizationColor != DEF_ORGANIZATION_COLOR) { 915 out.startTag(null, TAG_ORGANIZATION_COLOR); 916 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 917 out.endTag(null, TAG_ORGANIZATION_COLOR); 918 } 919 if (organizationName != null) { 920 out.startTag(null, TAG_ORGANIZATION_NAME); 921 out.text(organizationName); 922 out.endTag(null, TAG_ORGANIZATION_NAME); 923 } 924 } 925 926 void writePackageListToXml(XmlSerializer out, String outerTag, 927 List<String> packageList) 928 throws IllegalArgumentException, IllegalStateException, IOException { 929 if (packageList == null) { 930 return; 931 } 932 933 out.startTag(null, outerTag); 934 for (String packageName : packageList) { 935 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 936 out.attribute(null, ATTR_VALUE, packageName); 937 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 938 } 939 out.endTag(null, outerTag); 940 } 941 942 void readFromXml(XmlPullParser parser) 943 throws XmlPullParserException, IOException { 944 int outerDepth = parser.getDepth(); 945 int type; 946 while ((type=parser.next()) != END_DOCUMENT 947 && (type != END_TAG || parser.getDepth() > outerDepth)) { 948 if (type == END_TAG || type == TEXT) { 949 continue; 950 } 951 String tag = parser.getName(); 952 if (TAG_POLICIES.equals(tag)) { 953 info.readPoliciesFromXml(parser); 954 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 955 passwordQuality = Integer.parseInt( 956 parser.getAttributeValue(null, ATTR_VALUE)); 957 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 958 minimumPasswordLength = Integer.parseInt( 959 parser.getAttributeValue(null, ATTR_VALUE)); 960 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 961 passwordHistoryLength = Integer.parseInt( 962 parser.getAttributeValue(null, ATTR_VALUE)); 963 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 964 minimumPasswordUpperCase = Integer.parseInt( 965 parser.getAttributeValue(null, ATTR_VALUE)); 966 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 967 minimumPasswordLowerCase = Integer.parseInt( 968 parser.getAttributeValue(null, ATTR_VALUE)); 969 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 970 minimumPasswordLetters = Integer.parseInt( 971 parser.getAttributeValue(null, ATTR_VALUE)); 972 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 973 minimumPasswordNumeric = Integer.parseInt( 974 parser.getAttributeValue(null, ATTR_VALUE)); 975 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 976 minimumPasswordSymbols = Integer.parseInt( 977 parser.getAttributeValue(null, ATTR_VALUE)); 978 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 979 minimumPasswordNonLetter = Integer.parseInt( 980 parser.getAttributeValue(null, ATTR_VALUE)); 981 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 982 maximumTimeToUnlock = Long.parseLong( 983 parser.getAttributeValue(null, ATTR_VALUE)); 984 } else if (TAG_STRONG_AUTH_UNLOCK_TIMEOUT.equals(tag)) { 985 strongAuthUnlockTimeout = Long.parseLong( 986 parser.getAttributeValue(null, ATTR_VALUE)); 987 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 988 maximumFailedPasswordsForWipe = Integer.parseInt( 989 parser.getAttributeValue(null, ATTR_VALUE)); 990 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 991 specifiesGlobalProxy = Boolean.parseBoolean( 992 parser.getAttributeValue(null, ATTR_VALUE)); 993 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 994 globalProxySpec = 995 parser.getAttributeValue(null, ATTR_VALUE); 996 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 997 globalProxyExclusionList = 998 parser.getAttributeValue(null, ATTR_VALUE); 999 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 1000 passwordExpirationTimeout = Long.parseLong( 1001 parser.getAttributeValue(null, ATTR_VALUE)); 1002 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 1003 passwordExpirationDate = Long.parseLong( 1004 parser.getAttributeValue(null, ATTR_VALUE)); 1005 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 1006 encryptionRequested = Boolean.parseBoolean( 1007 parser.getAttributeValue(null, ATTR_VALUE)); 1008 } else if (TAG_TEST_ONLY_ADMIN.equals(tag)) { 1009 testOnlyAdmin = Boolean.parseBoolean( 1010 parser.getAttributeValue(null, ATTR_VALUE)); 1011 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 1012 disableCamera = Boolean.parseBoolean( 1013 parser.getAttributeValue(null, ATTR_VALUE)); 1014 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 1015 disableCallerId = Boolean.parseBoolean( 1016 parser.getAttributeValue(null, ATTR_VALUE)); 1017 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 1018 disableContactsSearch = Boolean.parseBoolean( 1019 parser.getAttributeValue(null, ATTR_VALUE)); 1020 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 1021 disableBluetoothContactSharing = Boolean.parseBoolean(parser 1022 .getAttributeValue(null, ATTR_VALUE)); 1023 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 1024 disableScreenCapture = Boolean.parseBoolean( 1025 parser.getAttributeValue(null, ATTR_VALUE)); 1026 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 1027 requireAutoTime = Boolean.parseBoolean( 1028 parser.getAttributeValue(null, ATTR_VALUE)); 1029 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 1030 forceEphemeralUsers = Boolean.parseBoolean( 1031 parser.getAttributeValue(null, ATTR_VALUE)); 1032 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 1033 disabledKeyguardFeatures = Integer.parseInt( 1034 parser.getAttributeValue(null, ATTR_VALUE)); 1035 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 1036 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 1037 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 1038 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 1039 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 1040 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 1041 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 1042 permittedAccessiblityServices = readPackageList(parser, tag); 1043 } else if (TAG_PERMITTED_IMES.equals(tag)) { 1044 permittedInputMethods = readPackageList(parser, tag); 1045 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 1046 keepUninstalledPackages = readPackageList(parser, tag); 1047 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 1048 UserRestrictionsUtils.readRestrictions(parser, ensureUserRestrictions()); 1049 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 1050 type = parser.next(); 1051 if (type == XmlPullParser.TEXT) { 1052 shortSupportMessage = parser.getText(); 1053 } else { 1054 Log.w(LOG_TAG, "Missing text when loading short support message"); 1055 } 1056 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 1057 type = parser.next(); 1058 if (type == XmlPullParser.TEXT) { 1059 longSupportMessage = parser.getText(); 1060 } else { 1061 Log.w(LOG_TAG, "Missing text when loading long support message"); 1062 } 1063 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1064 Preconditions.checkState(!isParent); 1065 1066 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1067 parentAdmin.readFromXml(parser); 1068 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1069 organizationColor = Integer.parseInt( 1070 parser.getAttributeValue(null, ATTR_VALUE)); 1071 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1072 type = parser.next(); 1073 if (type == XmlPullParser.TEXT) { 1074 organizationName = parser.getText(); 1075 } else { 1076 Log.w(LOG_TAG, "Missing text when loading organization name"); 1077 } 1078 } else { 1079 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1080 XmlUtils.skipCurrentTag(parser); 1081 } 1082 } 1083 } 1084 1085 private List<String> readPackageList(XmlPullParser parser, 1086 String tag) throws XmlPullParserException, IOException { 1087 List<String> result = new ArrayList<String>(); 1088 int outerDepth = parser.getDepth(); 1089 int outerType; 1090 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1091 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1092 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1093 continue; 1094 } 1095 String outerTag = parser.getName(); 1096 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1097 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1098 if (packageName != null) { 1099 result.add(packageName); 1100 } else { 1101 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1102 } 1103 } else { 1104 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1105 } 1106 } 1107 return result; 1108 } 1109 1110 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 1111 throws XmlPullParserException, IOException { 1112 int outerDepthDAM = parser.getDepth(); 1113 int typeDAM; 1114 Set<String> result = new ArraySet<>(); 1115 while ((typeDAM=parser.next()) != END_DOCUMENT 1116 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1117 if (typeDAM == END_TAG || typeDAM == TEXT) { 1118 continue; 1119 } 1120 String tagDAM = parser.getName(); 1121 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 1122 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1123 } else { 1124 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1125 } 1126 } 1127 return result; 1128 } 1129 1130 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1131 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1132 int outerDepthDAM = parser.getDepth(); 1133 int typeDAM; 1134 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1135 while ((typeDAM=parser.next()) != END_DOCUMENT 1136 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1137 if (typeDAM == END_TAG || typeDAM == TEXT) { 1138 continue; 1139 } 1140 String tagDAM = parser.getName(); 1141 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1142 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1143 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1144 result.put(component, trustAgentInfo); 1145 } else { 1146 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1147 } 1148 } 1149 return result; 1150 } 1151 1152 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1153 throws XmlPullParserException, IOException { 1154 int outerDepthDAM = parser.getDepth(); 1155 int typeDAM; 1156 TrustAgentInfo result = new TrustAgentInfo(null); 1157 while ((typeDAM=parser.next()) != END_DOCUMENT 1158 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1159 if (typeDAM == END_TAG || typeDAM == TEXT) { 1160 continue; 1161 } 1162 String tagDAM = parser.getName(); 1163 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 1164 result.options = PersistableBundle.restoreFromXml(parser); 1165 } else { 1166 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1167 } 1168 } 1169 return result; 1170 } 1171 1172 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 1173 throws XmlPullParserException, IOException { 1174 int outerDepthDAM = parser.getDepth(); 1175 int typeDAM; 1176 ArrayList<String> result = null; 1177 while ((typeDAM=parser.next()) != END_DOCUMENT 1178 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1179 if (typeDAM == END_TAG || typeDAM == TEXT) { 1180 continue; 1181 } 1182 String tagDAM = parser.getName(); 1183 if (TAG_PROVIDER.equals(tagDAM)) { 1184 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 1185 if (result == null) { 1186 result = new ArrayList<>(); 1187 } 1188 result.add(provider); 1189 } else { 1190 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1191 } 1192 } 1193 return result; 1194 } 1195 1196 boolean hasUserRestrictions() { 1197 return userRestrictions != null && userRestrictions.size() > 0; 1198 } 1199 1200 Bundle ensureUserRestrictions() { 1201 if (userRestrictions == null) { 1202 userRestrictions = new Bundle(); 1203 } 1204 return userRestrictions; 1205 } 1206 1207 void dump(String prefix, PrintWriter pw) { 1208 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1209 pw.print(prefix); pw.print("testOnlyAdmin="); 1210 pw.println(testOnlyAdmin); 1211 pw.print(prefix); pw.println("policies:"); 1212 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1213 if (pols != null) { 1214 for (int i=0; i<pols.size(); i++) { 1215 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1216 } 1217 } 1218 pw.print(prefix); pw.print("passwordQuality=0x"); 1219 pw.println(Integer.toHexString(passwordQuality)); 1220 pw.print(prefix); pw.print("minimumPasswordLength="); 1221 pw.println(minimumPasswordLength); 1222 pw.print(prefix); pw.print("passwordHistoryLength="); 1223 pw.println(passwordHistoryLength); 1224 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1225 pw.println(minimumPasswordUpperCase); 1226 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1227 pw.println(minimumPasswordLowerCase); 1228 pw.print(prefix); pw.print("minimumPasswordLetters="); 1229 pw.println(minimumPasswordLetters); 1230 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1231 pw.println(minimumPasswordNumeric); 1232 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1233 pw.println(minimumPasswordSymbols); 1234 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1235 pw.println(minimumPasswordNonLetter); 1236 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1237 pw.println(maximumTimeToUnlock); 1238 pw.print(prefix); pw.print("strongAuthUnlockTimeout="); 1239 pw.println(strongAuthUnlockTimeout); 1240 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1241 pw.println(maximumFailedPasswordsForWipe); 1242 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1243 pw.println(specifiesGlobalProxy); 1244 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1245 pw.println(passwordExpirationTimeout); 1246 pw.print(prefix); pw.print("passwordExpirationDate="); 1247 pw.println(passwordExpirationDate); 1248 if (globalProxySpec != null) { 1249 pw.print(prefix); pw.print("globalProxySpec="); 1250 pw.println(globalProxySpec); 1251 } 1252 if (globalProxyExclusionList != null) { 1253 pw.print(prefix); pw.print("globalProxyEclusionList="); 1254 pw.println(globalProxyExclusionList); 1255 } 1256 pw.print(prefix); pw.print("encryptionRequested="); 1257 pw.println(encryptionRequested); 1258 pw.print(prefix); pw.print("disableCamera="); 1259 pw.println(disableCamera); 1260 pw.print(prefix); pw.print("disableCallerId="); 1261 pw.println(disableCallerId); 1262 pw.print(prefix); pw.print("disableContactsSearch="); 1263 pw.println(disableContactsSearch); 1264 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1265 pw.println(disableBluetoothContactSharing); 1266 pw.print(prefix); pw.print("disableScreenCapture="); 1267 pw.println(disableScreenCapture); 1268 pw.print(prefix); pw.print("requireAutoTime="); 1269 pw.println(requireAutoTime); 1270 pw.print(prefix); pw.print("forceEphemeralUsers="); 1271 pw.println(forceEphemeralUsers); 1272 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1273 pw.println(disabledKeyguardFeatures); 1274 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1275 pw.println(crossProfileWidgetProviders); 1276 if (permittedAccessiblityServices != null) { 1277 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1278 pw.println(permittedAccessiblityServices); 1279 } 1280 if (permittedInputMethods != null) { 1281 pw.print(prefix); pw.print("permittedInputMethods="); 1282 pw.println(permittedInputMethods); 1283 } 1284 if (keepUninstalledPackages != null) { 1285 pw.print(prefix); pw.print("keepUninstalledPackages="); 1286 pw.println(keepUninstalledPackages); 1287 } 1288 pw.print(prefix); pw.print("organizationColor="); 1289 pw.println(organizationColor); 1290 if (organizationName != null) { 1291 pw.print(prefix); pw.print("organizationName="); 1292 pw.println(organizationName); 1293 } 1294 pw.print(prefix); pw.println("userRestrictions:"); 1295 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1296 pw.print(prefix); pw.print("isParent="); 1297 pw.println(isParent); 1298 if (parentAdmin != null) { 1299 pw.print(prefix); pw.println("parentAdmin:"); 1300 parentAdmin.dump(prefix + " ", pw); 1301 } 1302 } 1303 } 1304 1305 private void handlePackagesChanged(String packageName, int userHandle) { 1306 boolean removed = false; 1307 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1308 DevicePolicyData policy = getUserData(userHandle); 1309 synchronized (this) { 1310 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1311 ActiveAdmin aa = policy.mAdminList.get(i); 1312 try { 1313 // If we're checking all packages or if the specific one we're checking matches, 1314 // then check if the package and receiver still exist. 1315 final String adminPackage = aa.info.getPackageName(); 1316 if (packageName == null || packageName.equals(adminPackage)) { 1317 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1318 || mIPackageManager.getReceiverInfo(aa.info.getComponent(), 1319 PackageManager.MATCH_DIRECT_BOOT_AWARE 1320 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 1321 userHandle) == null) { 1322 removed = true; 1323 policy.mAdminList.remove(i); 1324 policy.mAdminMap.remove(aa.info.getComponent()); 1325 } 1326 } 1327 } catch (RemoteException re) { 1328 // Shouldn't happen 1329 } 1330 } 1331 if (removed) { 1332 validatePasswordOwnerLocked(policy); 1333 saveSettingsLocked(policy.mUserHandle); 1334 } 1335 1336 // Check if delegated cert installer or app restrictions managing packages are removed. 1337 if (isRemovedPackage(packageName, policy.mDelegatedCertInstallerPackage, userHandle)) { 1338 policy.mDelegatedCertInstallerPackage = null; 1339 saveSettingsLocked(policy.mUserHandle); 1340 } 1341 if (isRemovedPackage( 1342 packageName, policy.mApplicationRestrictionsManagingPackage, userHandle)) { 1343 policy.mApplicationRestrictionsManagingPackage = null; 1344 saveSettingsLocked(policy.mUserHandle); 1345 } 1346 } 1347 if (removed) { 1348 // The removed admin might have disabled camera, so update user restrictions. 1349 pushUserRestrictions(userHandle); 1350 } 1351 } 1352 1353 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1354 try { 1355 return targetPackage != null 1356 && (changedPackage == null || changedPackage.equals(targetPackage)) 1357 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1358 } catch (RemoteException e) { 1359 // Shouldn't happen 1360 } 1361 1362 return false; 1363 } 1364 1365 /** 1366 * Unit test will subclass it to inject mocks. 1367 */ 1368 @VisibleForTesting 1369 static class Injector { 1370 1371 private final Context mContext; 1372 1373 Injector(Context context) { 1374 mContext = context; 1375 } 1376 1377 Owners newOwners() { 1378 return new Owners(getUserManager(), getUserManagerInternal(), 1379 getPackageManagerInternal()); 1380 } 1381 1382 UserManager getUserManager() { 1383 return UserManager.get(mContext); 1384 } 1385 1386 UserManagerInternal getUserManagerInternal() { 1387 return LocalServices.getService(UserManagerInternal.class); 1388 } 1389 1390 PackageManagerInternal getPackageManagerInternal() { 1391 return LocalServices.getService(PackageManagerInternal.class); 1392 } 1393 1394 NotificationManager getNotificationManager() { 1395 return mContext.getSystemService(NotificationManager.class); 1396 } 1397 1398 PowerManagerInternal getPowerManagerInternal() { 1399 return LocalServices.getService(PowerManagerInternal.class); 1400 } 1401 1402 TelephonyManager getTelephonyManager() { 1403 return TelephonyManager.from(mContext); 1404 } 1405 1406 TrustManager getTrustManager() { 1407 return (TrustManager) mContext.getSystemService(Context.TRUST_SERVICE); 1408 } 1409 1410 IWindowManager getIWindowManager() { 1411 return IWindowManager.Stub 1412 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1413 } 1414 1415 IActivityManager getIActivityManager() { 1416 return ActivityManagerNative.getDefault(); 1417 } 1418 1419 IPackageManager getIPackageManager() { 1420 return AppGlobals.getPackageManager(); 1421 } 1422 1423 IBackupManager getIBackupManager() { 1424 return IBackupManager.Stub.asInterface( 1425 ServiceManager.getService(Context.BACKUP_SERVICE)); 1426 } 1427 1428 IAudioService getIAudioService() { 1429 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1430 } 1431 1432 LockPatternUtils newLockPatternUtils() { 1433 return new LockPatternUtils(mContext); 1434 } 1435 1436 boolean storageManagerIsFileBasedEncryptionEnabled() { 1437 return StorageManager.isFileEncryptedNativeOnly(); 1438 } 1439 1440 boolean storageManagerIsNonDefaultBlockEncrypted() { 1441 long identity = Binder.clearCallingIdentity(); 1442 try { 1443 return StorageManager.isNonDefaultBlockEncrypted(); 1444 } finally { 1445 Binder.restoreCallingIdentity(identity); 1446 } 1447 } 1448 1449 boolean storageManagerIsEncrypted() { 1450 return StorageManager.isEncrypted(); 1451 } 1452 1453 boolean storageManagerIsEncryptable() { 1454 return StorageManager.isEncryptable(); 1455 } 1456 1457 Looper getMyLooper() { 1458 return Looper.myLooper(); 1459 } 1460 1461 WifiManager getWifiManager() { 1462 return mContext.getSystemService(WifiManager.class); 1463 } 1464 1465 long binderClearCallingIdentity() { 1466 return Binder.clearCallingIdentity(); 1467 } 1468 1469 void binderRestoreCallingIdentity(long token) { 1470 Binder.restoreCallingIdentity(token); 1471 } 1472 1473 int binderGetCallingUid() { 1474 return Binder.getCallingUid(); 1475 } 1476 1477 int binderGetCallingPid() { 1478 return Binder.getCallingPid(); 1479 } 1480 1481 UserHandle binderGetCallingUserHandle() { 1482 return Binder.getCallingUserHandle(); 1483 } 1484 1485 boolean binderIsCallingUidMyUid() { 1486 return getCallingUid() == Process.myUid(); 1487 } 1488 1489 final int userHandleGetCallingUserId() { 1490 return UserHandle.getUserId(binderGetCallingUid()); 1491 } 1492 1493 File environmentGetUserSystemDirectory(int userId) { 1494 return Environment.getUserSystemDirectory(userId); 1495 } 1496 1497 void powerManagerGoToSleep(long time, int reason, int flags) { 1498 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1499 } 1500 1501 void powerManagerReboot(String reason) { 1502 mContext.getSystemService(PowerManager.class).reboot(reason); 1503 } 1504 1505 boolean systemPropertiesGetBoolean(String key, boolean def) { 1506 return SystemProperties.getBoolean(key, def); 1507 } 1508 1509 long systemPropertiesGetLong(String key, long def) { 1510 return SystemProperties.getLong(key, def); 1511 } 1512 1513 String systemPropertiesGet(String key, String def) { 1514 return SystemProperties.get(key, def); 1515 } 1516 1517 String systemPropertiesGet(String key) { 1518 return SystemProperties.get(key); 1519 } 1520 1521 void systemPropertiesSet(String key, String value) { 1522 SystemProperties.set(key, value); 1523 } 1524 1525 boolean userManagerIsSplitSystemUser() { 1526 return UserManager.isSplitSystemUser(); 1527 } 1528 1529 String getDevicePolicyFilePathForSystemUser() { 1530 return "/data/system/"; 1531 } 1532 1533 void registerContentObserver(Uri uri, boolean notifyForDescendents, 1534 ContentObserver observer, int userHandle) { 1535 mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents, 1536 observer, userHandle); 1537 } 1538 1539 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1540 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1541 name, def, userHandle); 1542 } 1543 1544 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1545 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1546 name, value, userHandle); 1547 } 1548 1549 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1550 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1551 name, value, userHandle); 1552 } 1553 1554 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1555 Settings.Global.putStringForUser(mContext.getContentResolver(), 1556 name, value, userHandle); 1557 } 1558 1559 void settingsSecurePutInt(String name, int value) { 1560 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1561 } 1562 1563 int settingsGlobalGetInt(String name, int def) { 1564 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1565 } 1566 1567 void settingsGlobalPutInt(String name, int value) { 1568 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1569 } 1570 1571 void settingsSecurePutString(String name, String value) { 1572 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1573 } 1574 1575 void settingsGlobalPutString(String name, String value) { 1576 Settings.Global.putString(mContext.getContentResolver(), name, value); 1577 } 1578 1579 void securityLogSetLoggingEnabledProperty(boolean enabled) { 1580 SecurityLog.setLoggingEnabledProperty(enabled); 1581 } 1582 1583 boolean securityLogGetLoggingEnabledProperty() { 1584 return SecurityLog.getLoggingEnabledProperty(); 1585 } 1586 1587 boolean securityLogIsLoggingEnabled() { 1588 return SecurityLog.isLoggingEnabled(); 1589 } 1590 } 1591 1592 /** 1593 * Instantiates the service. 1594 */ 1595 public DevicePolicyManagerService(Context context) { 1596 this(new Injector(context)); 1597 } 1598 1599 @VisibleForTesting 1600 DevicePolicyManagerService(Injector injector) { 1601 mInjector = injector; 1602 mContext = Preconditions.checkNotNull(injector.mContext); 1603 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1604 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1605 1606 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1607 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1608 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1609 mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager()); 1610 1611 mLocalService = new LocalService(); 1612 mLockPatternUtils = injector.newLockPatternUtils(); 1613 1614 mSecurityLogMonitor = new SecurityLogMonitor(this); 1615 1616 mHasFeature = mContext.getPackageManager() 1617 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1618 if (!mHasFeature) { 1619 // Skip the rest of the initialization 1620 return; 1621 } 1622 IntentFilter filter = new IntentFilter(); 1623 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1624 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1625 filter.addAction(Intent.ACTION_USER_ADDED); 1626 filter.addAction(Intent.ACTION_USER_REMOVED); 1627 filter.addAction(Intent.ACTION_USER_STARTED); 1628 filter.addAction(Intent.ACTION_USER_UNLOCKED); 1629 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1630 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1631 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1632 filter = new IntentFilter(); 1633 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1634 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1635 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1636 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1637 filter.addDataScheme("package"); 1638 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1639 filter = new IntentFilter(); 1640 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1641 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1642 1643 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1644 } 1645 1646 /** 1647 * Creates and loads the policy data from xml. 1648 * @param userHandle the user for whom to load the policy data 1649 * @return 1650 */ 1651 @NonNull 1652 DevicePolicyData getUserData(int userHandle) { 1653 synchronized (this) { 1654 DevicePolicyData policy = mUserData.get(userHandle); 1655 if (policy == null) { 1656 policy = new DevicePolicyData(userHandle); 1657 mUserData.append(userHandle, policy); 1658 loadSettingsLocked(policy, userHandle); 1659 } 1660 return policy; 1661 } 1662 } 1663 1664 /** 1665 * Creates and loads the policy data from xml for data that is shared between 1666 * various profiles of a user. In contrast to {@link #getUserData(int)} 1667 * it allows access to data of users other than the calling user. 1668 * 1669 * This function should only be used for shared data, e.g. everything regarding 1670 * passwords and should be removed once multiple screen locks are present. 1671 * @param userHandle the user for whom to load the policy data 1672 * @return 1673 */ 1674 DevicePolicyData getUserDataUnchecked(int userHandle) { 1675 long ident = mInjector.binderClearCallingIdentity(); 1676 try { 1677 return getUserData(userHandle); 1678 } finally { 1679 mInjector.binderRestoreCallingIdentity(ident); 1680 } 1681 } 1682 1683 void removeUserData(int userHandle) { 1684 synchronized (this) { 1685 if (userHandle == UserHandle.USER_SYSTEM) { 1686 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1687 return; 1688 } 1689 mOwners.removeProfileOwner(userHandle); 1690 mOwners.writeProfileOwner(userHandle); 1691 1692 DevicePolicyData policy = mUserData.get(userHandle); 1693 if (policy != null) { 1694 mUserData.remove(userHandle); 1695 } 1696 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1697 DEVICE_POLICIES_XML); 1698 policyFile.delete(); 1699 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1700 } 1701 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1702 } 1703 1704 void loadOwners() { 1705 synchronized (this) { 1706 mOwners.load(); 1707 setDeviceOwnerSystemPropertyLocked(); 1708 findOwnerComponentIfNecessaryLocked(); 1709 migrateUserRestrictionsIfNecessaryLocked(); 1710 1711 // TODO PO may not have a class name either due to b/17652534. Address that too. 1712 1713 updateDeviceOwnerLocked(); 1714 } 1715 } 1716 1717 private void setDeviceOwnerSystemPropertyLocked() { 1718 // Device owner may still be provisioned, do not set the read-only system property yet. 1719 if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) == 0) { 1720 return; 1721 } 1722 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 1723 // always false at this point. 1724 if (StorageManager.inCryptKeeperBounce()) { 1725 return; 1726 } 1727 1728 if (!TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT))) { 1729 Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 1730 } else { 1731 if (mOwners.hasDeviceOwner()) { 1732 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "true"); 1733 Slog.i(LOG_TAG, "Set ro.device_owner property to true"); 1734 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 1735 if (mInjector.securityLogGetLoggingEnabledProperty()) { 1736 mSecurityLogMonitor.start(); 1737 } 1738 } else { 1739 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "false"); 1740 Slog.i(LOG_TAG, "Set ro.device_owner property to false"); 1741 } 1742 } 1743 } 1744 1745 private void findOwnerComponentIfNecessaryLocked() { 1746 if (!mOwners.hasDeviceOwner()) { 1747 return; 1748 } 1749 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1750 1751 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1752 return; // Already a full component name. 1753 } 1754 1755 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1756 doComponentName.getPackageName(), 1757 mOwners.getDeviceOwnerUserId()); 1758 if (doComponent == null) { 1759 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1760 } else { 1761 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1762 doComponent, 1763 mOwners.getDeviceOwnerName(), 1764 mOwners.getDeviceOwnerUserId(), 1765 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1766 mOwners.writeDeviceOwner(); 1767 if (VERBOSE_LOG) { 1768 Log.v(LOG_TAG, "Device owner component filled in"); 1769 } 1770 } 1771 } 1772 1773 /** 1774 * We didn't use to persist user restrictions for each owners but only persisted in user 1775 * manager. 1776 */ 1777 private void migrateUserRestrictionsIfNecessaryLocked() { 1778 boolean migrated = false; 1779 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 1780 // except for the "system controlled" ones. 1781 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 1782 if (VERBOSE_LOG) { 1783 Log.v(LOG_TAG, "Migrating DO user restrictions"); 1784 } 1785 migrated = true; 1786 1787 // Migrate user 0 restrictions to DO. 1788 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 1789 1790 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 1791 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 1792 1793 // Push DO user restrictions to user manager. 1794 pushUserRestrictions(UserHandle.USER_SYSTEM); 1795 1796 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 1797 } 1798 1799 // Migrate for POs. 1800 1801 // The following restrictions can be set on secondary users by the device owner, so we 1802 // assume they're not from the PO. 1803 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 1804 UserManager.DISALLOW_OUTGOING_CALLS, 1805 UserManager.DISALLOW_SMS); 1806 1807 for (UserInfo ui : mUserManager.getUsers()) { 1808 final int userId = ui.id; 1809 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 1810 if (VERBOSE_LOG) { 1811 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 1812 } 1813 migrated = true; 1814 1815 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 1816 1817 final Set<String> exceptionList = 1818 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 1819 1820 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 1821 exceptionList, /* isDeviceOwner =*/ false); 1822 1823 // Note if a secondary user has no PO but has a DA that disables camera, we 1824 // don't get here and won't push the camera user restriction to UserManager 1825 // here. That's okay because we'll push user restrictions anyway when a user 1826 // starts. But we still do it because we want to let user manager persist 1827 // upon migration. 1828 pushUserRestrictions(userId); 1829 1830 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 1831 } 1832 } 1833 if (VERBOSE_LOG && migrated) { 1834 Log.v(LOG_TAG, "User restrictions migrated."); 1835 } 1836 } 1837 1838 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 1839 Set<String> exceptionList, boolean isDeviceOwner) { 1840 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 1841 user.getIdentifier()); 1842 1843 final Bundle newBaseRestrictions = new Bundle(); 1844 final Bundle newOwnerRestrictions = new Bundle(); 1845 1846 for (String key : origRestrictions.keySet()) { 1847 if (!origRestrictions.getBoolean(key)) { 1848 continue; 1849 } 1850 final boolean canOwnerChange = isDeviceOwner 1851 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 1852 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 1853 1854 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 1855 newBaseRestrictions.putBoolean(key, true); 1856 } else { 1857 newOwnerRestrictions.putBoolean(key, true); 1858 } 1859 } 1860 1861 if (VERBOSE_LOG) { 1862 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 1863 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 1864 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 1865 } 1866 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 1867 newBaseRestrictions); 1868 1869 if (admin != null) { 1870 admin.ensureUserRestrictions().clear(); 1871 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 1872 } else { 1873 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 1874 } 1875 saveSettingsLocked(user.getIdentifier()); 1876 } 1877 1878 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 1879 final DevicePolicyData policy = getUserData(userId); 1880 final int n = policy.mAdminList.size(); 1881 ComponentName found = null; 1882 int nFound = 0; 1883 for (int i = 0; i < n; i++) { 1884 final ActiveAdmin admin = policy.mAdminList.get(i); 1885 if (packageName.equals(admin.info.getPackageName())) { 1886 // Found! 1887 if (nFound == 0) { 1888 found = admin.info.getComponent(); 1889 } 1890 nFound++; 1891 } 1892 } 1893 if (nFound > 1) { 1894 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 1895 } 1896 return found; 1897 } 1898 1899 /** 1900 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1901 * reminders. Clears alarm if no expirations are configured. 1902 */ 1903 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 1904 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 1905 final long now = System.currentTimeMillis(); 1906 final long timeToExpire = expiration - now; 1907 final long alarmTime; 1908 if (expiration == 0) { 1909 // No expirations are currently configured: Cancel alarm. 1910 alarmTime = 0; 1911 } else if (timeToExpire <= 0) { 1912 // The password has already expired: Repeat every 24 hours. 1913 alarmTime = now + MS_PER_DAY; 1914 } else { 1915 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1916 // the expiration time. 1917 long alarmInterval = timeToExpire % MS_PER_DAY; 1918 if (alarmInterval == 0) { 1919 alarmInterval = MS_PER_DAY; 1920 } 1921 alarmTime = now + alarmInterval; 1922 } 1923 1924 long token = mInjector.binderClearCallingIdentity(); 1925 try { 1926 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 1927 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1928 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1929 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1930 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1931 UserHandle.of(affectedUserHandle)); 1932 am.cancel(pi); 1933 if (alarmTime != 0) { 1934 am.set(AlarmManager.RTC, alarmTime, pi); 1935 } 1936 } finally { 1937 mInjector.binderRestoreCallingIdentity(token); 1938 } 1939 } 1940 1941 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1942 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1943 if (admin != null 1944 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1945 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1946 return admin; 1947 } 1948 return null; 1949 } 1950 1951 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 1952 if (parent) { 1953 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 1954 } 1955 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1956 if (admin != null && parent) { 1957 admin = admin.getParentActiveAdmin(); 1958 } 1959 return admin; 1960 } 1961 1962 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1963 throws SecurityException { 1964 final int callingUid = mInjector.binderGetCallingUid(); 1965 1966 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1967 if (result != null) { 1968 return result; 1969 } 1970 1971 if (who != null) { 1972 final int userId = UserHandle.getUserId(callingUid); 1973 final DevicePolicyData policy = getUserData(userId); 1974 ActiveAdmin admin = policy.mAdminMap.get(who); 1975 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1976 throw new SecurityException("Admin " + admin.info.getComponent() 1977 + " does not own the device"); 1978 } 1979 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1980 throw new SecurityException("Admin " + admin.info.getComponent() 1981 + " does not own the profile"); 1982 } 1983 throw new SecurityException("Admin " + admin.info.getComponent() 1984 + " did not specify uses-policy for: " 1985 + admin.info.getTagForPolicy(reqPolicy)); 1986 } else { 1987 throw new SecurityException("No active admin owned by uid " 1988 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 1989 } 1990 } 1991 1992 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 1993 throws SecurityException { 1994 if (parent) { 1995 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 1996 "call APIs on the parent profile"); 1997 } 1998 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 1999 return parent ? admin.getParentActiveAdmin() : admin; 2000 } 2001 /** 2002 * Find the admin for the component and userId bit of the uid, then check 2003 * the admin's uid matches the uid. 2004 */ 2005 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 2006 final int userId = UserHandle.getUserId(uid); 2007 final DevicePolicyData policy = getUserData(userId); 2008 ActiveAdmin admin = policy.mAdminMap.get(who); 2009 if (admin == null) { 2010 throw new SecurityException("No active admin " + who); 2011 } 2012 if (admin.getUid() != uid) { 2013 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2014 } 2015 return admin; 2016 } 2017 2018 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 2019 int uid) { 2020 // Try to find an admin which can use reqPolicy 2021 final int userId = UserHandle.getUserId(uid); 2022 final DevicePolicyData policy = getUserData(userId); 2023 if (who != null) { 2024 ActiveAdmin admin = policy.mAdminMap.get(who); 2025 if (admin == null) { 2026 throw new SecurityException("No active admin " + who); 2027 } 2028 if (admin.getUid() != uid) { 2029 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2030 } 2031 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 2032 return admin; 2033 } 2034 } else { 2035 for (ActiveAdmin admin : policy.mAdminList) { 2036 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 2037 userId)) { 2038 return admin; 2039 } 2040 } 2041 } 2042 2043 return null; 2044 } 2045 2046 @VisibleForTesting 2047 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 2048 int userId) { 2049 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 2050 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 2051 2052 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2053 return ownsDevice; 2054 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2055 // DO always has the PO power. 2056 return ownsDevice || ownsProfile; 2057 } else { 2058 return admin.info.usesPolicy(reqPolicy); 2059 } 2060 } 2061 2062 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 2063 sendAdminCommandLocked(admin, action, null); 2064 } 2065 2066 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 2067 sendAdminCommandLocked(admin, action, null, result); 2068 } 2069 2070 /** 2071 * Send an update to one specific admin, get notified when that admin returns a result. 2072 */ 2073 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2074 BroadcastReceiver result) { 2075 Intent intent = new Intent(action); 2076 intent.setComponent(admin.info.getComponent()); 2077 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 2078 intent.putExtra("expiration", admin.passwordExpirationDate); 2079 } 2080 if (adminExtras != null) { 2081 intent.putExtras(adminExtras); 2082 } 2083 if (result != null) { 2084 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 2085 null, result, mHandler, Activity.RESULT_OK, null, null); 2086 } else { 2087 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 2088 } 2089 } 2090 2091 /** 2092 * Send an update to all admins of a user that enforce a specified policy. 2093 */ 2094 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 2095 final DevicePolicyData policy = getUserData(userHandle); 2096 final int count = policy.mAdminList.size(); 2097 if (count > 0) { 2098 for (int i = 0; i < count; i++) { 2099 final ActiveAdmin admin = policy.mAdminList.get(i); 2100 if (admin.info.usesPolicy(reqPolicy)) { 2101 sendAdminCommandLocked(admin, action); 2102 } 2103 } 2104 } 2105 } 2106 2107 /** 2108 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2109 * enforce a specified policy. 2110 */ 2111 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2112 int userHandle) { 2113 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 2114 for (int profileId : profileIds) { 2115 sendAdminCommandLocked(action, reqPolicy, profileId); 2116 } 2117 } 2118 2119 /** 2120 * Sends a broadcast to each profile that share the password unlock with the given user id. 2121 */ 2122 private void sendAdminCommandForLockscreenPoliciesLocked( 2123 String action, int reqPolicy, int userHandle) { 2124 if (isSeparateProfileChallengeEnabled(userHandle)) { 2125 sendAdminCommandLocked(action, reqPolicy, userHandle); 2126 } else { 2127 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle); 2128 } 2129 } 2130 2131 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2132 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2133 DevicePolicyData policy = getUserData(userHandle); 2134 if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) { 2135 policy.mRemovingAdmins.add(adminReceiver); 2136 sendAdminCommandLocked(admin, 2137 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2138 new BroadcastReceiver() { 2139 @Override 2140 public void onReceive(Context context, Intent intent) { 2141 removeAdminArtifacts(adminReceiver, userHandle); 2142 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2143 } 2144 }); 2145 } 2146 } 2147 2148 2149 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2150 boolean throwForMissiongPermission) { 2151 if (!mHasFeature) { 2152 return null; 2153 } 2154 enforceFullCrossUsersPermission(userHandle); 2155 ActivityInfo ai = null; 2156 try { 2157 ai = mIPackageManager.getReceiverInfo(adminName, 2158 PackageManager.GET_META_DATA | 2159 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS | 2160 PackageManager.MATCH_DIRECT_BOOT_AWARE | 2161 PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle); 2162 } catch (RemoteException e) { 2163 // shouldn't happen. 2164 } 2165 if (ai == null) { 2166 throw new IllegalArgumentException("Unknown admin: " + adminName); 2167 } 2168 2169 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2170 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2171 + permission.BIND_DEVICE_ADMIN; 2172 Slog.w(LOG_TAG, message); 2173 if (throwForMissiongPermission && 2174 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2175 throw new IllegalArgumentException(message); 2176 } 2177 } 2178 2179 try { 2180 return new DeviceAdminInfo(mContext, ai); 2181 } catch (XmlPullParserException | IOException e) { 2182 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2183 e); 2184 return null; 2185 } 2186 } 2187 2188 private JournaledFile makeJournaledFile(int userHandle) { 2189 final String base = userHandle == UserHandle.USER_SYSTEM 2190 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 2191 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2192 DEVICE_POLICIES_XML).getAbsolutePath(); 2193 if (VERBOSE_LOG) { 2194 Log.v(LOG_TAG, "Opening " + base); 2195 } 2196 return new JournaledFile(new File(base), new File(base + ".tmp")); 2197 } 2198 2199 private void saveSettingsLocked(int userHandle) { 2200 DevicePolicyData policy = getUserData(userHandle); 2201 JournaledFile journal = makeJournaledFile(userHandle); 2202 FileOutputStream stream = null; 2203 try { 2204 stream = new FileOutputStream(journal.chooseForWrite(), false); 2205 XmlSerializer out = new FastXmlSerializer(); 2206 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2207 out.startDocument(null, true); 2208 2209 out.startTag(null, "policies"); 2210 if (policy.mRestrictionsProvider != null) { 2211 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2212 policy.mRestrictionsProvider.flattenToString()); 2213 } 2214 if (policy.mUserSetupComplete) { 2215 out.attribute(null, ATTR_SETUP_COMPLETE, 2216 Boolean.toString(true)); 2217 } 2218 if (policy.mDeviceProvisioningConfigApplied) { 2219 out.attribute(null, ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED, 2220 Boolean.toString(true)); 2221 } 2222 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2223 out.attribute(null, ATTR_PROVISIONING_STATE, 2224 Integer.toString(policy.mUserProvisioningState)); 2225 } 2226 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2227 out.attribute(null, ATTR_PERMISSION_POLICY, 2228 Integer.toString(policy.mPermissionPolicy)); 2229 } 2230 if (policy.mDelegatedCertInstallerPackage != null) { 2231 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 2232 policy.mDelegatedCertInstallerPackage); 2233 } 2234 if (policy.mApplicationRestrictionsManagingPackage != null) { 2235 out.attribute(null, ATTR_APPLICATION_RESTRICTIONS_MANAGER, 2236 policy.mApplicationRestrictionsManagingPackage); 2237 } 2238 2239 final int N = policy.mAdminList.size(); 2240 for (int i=0; i<N; i++) { 2241 ActiveAdmin ap = policy.mAdminList.get(i); 2242 if (ap != null) { 2243 out.startTag(null, "admin"); 2244 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2245 ap.writeToXml(out); 2246 out.endTag(null, "admin"); 2247 } 2248 } 2249 2250 if (policy.mPasswordOwner >= 0) { 2251 out.startTag(null, "password-owner"); 2252 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2253 out.endTag(null, "password-owner"); 2254 } 2255 2256 if (policy.mFailedPasswordAttempts != 0) { 2257 out.startTag(null, "failed-password-attempts"); 2258 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2259 out.endTag(null, "failed-password-attempts"); 2260 } 2261 2262 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 2263 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 2264 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 2265 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 2266 out.startTag(null, "active-password"); 2267 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 2268 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 2269 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 2270 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 2271 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 2272 out.attribute(null, "numeric", Integer 2273 .toString(policy.mActivePasswordNumeric)); 2274 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 2275 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 2276 out.endTag(null, "active-password"); 2277 } 2278 2279 for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) { 2280 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2281 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i)); 2282 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2283 } 2284 2285 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2286 String component = policy.mLockTaskPackages.get(i); 2287 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2288 out.attribute(null, "name", component); 2289 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2290 } 2291 2292 if (policy.mStatusBarDisabled) { 2293 out.startTag(null, TAG_STATUS_BAR); 2294 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2295 out.endTag(null, TAG_STATUS_BAR); 2296 } 2297 2298 if (policy.doNotAskCredentialsOnBoot) { 2299 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2300 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2301 } 2302 2303 for (String id : policy.mAffiliationIds) { 2304 out.startTag(null, TAG_AFFILIATION_ID); 2305 out.attribute(null, "id", id); 2306 out.endTag(null, TAG_AFFILIATION_ID); 2307 } 2308 2309 if (policy.mAdminBroadcastPending) { 2310 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2311 out.attribute(null, ATTR_VALUE, 2312 Boolean.toString(policy.mAdminBroadcastPending)); 2313 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2314 } 2315 2316 if (policy.mInitBundle != null) { 2317 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 2318 policy.mInitBundle.saveToXml(out); 2319 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 2320 } 2321 2322 out.endTag(null, "policies"); 2323 2324 out.endDocument(); 2325 stream.flush(); 2326 FileUtils.sync(stream); 2327 stream.close(); 2328 journal.commit(); 2329 sendChangedNotification(userHandle); 2330 } catch (XmlPullParserException | IOException e) { 2331 Slog.w(LOG_TAG, "failed writing file", e); 2332 try { 2333 if (stream != null) { 2334 stream.close(); 2335 } 2336 } catch (IOException ex) { 2337 // Ignore 2338 } 2339 journal.rollback(); 2340 } 2341 } 2342 2343 private void sendChangedNotification(int userHandle) { 2344 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 2345 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2346 long ident = mInjector.binderClearCallingIdentity(); 2347 try { 2348 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 2349 } finally { 2350 mInjector.binderRestoreCallingIdentity(ident); 2351 } 2352 } 2353 2354 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 2355 JournaledFile journal = makeJournaledFile(userHandle); 2356 FileInputStream stream = null; 2357 File file = journal.chooseForRead(); 2358 try { 2359 stream = new FileInputStream(file); 2360 XmlPullParser parser = Xml.newPullParser(); 2361 parser.setInput(stream, StandardCharsets.UTF_8.name()); 2362 2363 int type; 2364 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2365 && type != XmlPullParser.START_TAG) { 2366 } 2367 String tag = parser.getName(); 2368 if (!"policies".equals(tag)) { 2369 throw new XmlPullParserException( 2370 "Settings do not start with policies tag: found " + tag); 2371 } 2372 2373 // Extract the permission provider component name if available 2374 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 2375 if (permissionProvider != null) { 2376 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 2377 } 2378 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 2379 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 2380 policy.mUserSetupComplete = true; 2381 } 2382 String deviceProvisioningConfigApplied = parser.getAttributeValue(null, 2383 ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED); 2384 if (deviceProvisioningConfigApplied != null 2385 && Boolean.toString(true).equals(deviceProvisioningConfigApplied)) { 2386 policy.mDeviceProvisioningConfigApplied = true; 2387 } 2388 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 2389 if (!TextUtils.isEmpty(provisioningState)) { 2390 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 2391 } 2392 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 2393 if (!TextUtils.isEmpty(permissionPolicy)) { 2394 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 2395 } 2396 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 2397 ATTR_DELEGATED_CERT_INSTALLER); 2398 policy.mApplicationRestrictionsManagingPackage = parser.getAttributeValue(null, 2399 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 2400 2401 type = parser.next(); 2402 int outerDepth = parser.getDepth(); 2403 policy.mLockTaskPackages.clear(); 2404 policy.mAdminList.clear(); 2405 policy.mAdminMap.clear(); 2406 policy.mAffiliationIds.clear(); 2407 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2408 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2409 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2410 continue; 2411 } 2412 tag = parser.getName(); 2413 if ("admin".equals(tag)) { 2414 String name = parser.getAttributeValue(null, "name"); 2415 try { 2416 DeviceAdminInfo dai = findAdmin( 2417 ComponentName.unflattenFromString(name), userHandle, 2418 /* throwForMissionPermission= */ false); 2419 if (VERBOSE_LOG 2420 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 2421 != userHandle)) { 2422 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 2423 + dai.getActivityInfo().applicationInfo.uid + " for user " 2424 + userHandle); 2425 } 2426 if (dai != null) { 2427 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 2428 ap.readFromXml(parser); 2429 policy.mAdminMap.put(ap.info.getComponent(), ap); 2430 } 2431 } catch (RuntimeException e) { 2432 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 2433 } 2434 } else if ("failed-password-attempts".equals(tag)) { 2435 policy.mFailedPasswordAttempts = Integer.parseInt( 2436 parser.getAttributeValue(null, "value")); 2437 } else if ("password-owner".equals(tag)) { 2438 policy.mPasswordOwner = Integer.parseInt( 2439 parser.getAttributeValue(null, "value")); 2440 } else if ("active-password".equals(tag)) { 2441 policy.mActivePasswordQuality = Integer.parseInt( 2442 parser.getAttributeValue(null, "quality")); 2443 policy.mActivePasswordLength = Integer.parseInt( 2444 parser.getAttributeValue(null, "length")); 2445 policy.mActivePasswordUpperCase = Integer.parseInt( 2446 parser.getAttributeValue(null, "uppercase")); 2447 policy.mActivePasswordLowerCase = Integer.parseInt( 2448 parser.getAttributeValue(null, "lowercase")); 2449 policy.mActivePasswordLetters = Integer.parseInt( 2450 parser.getAttributeValue(null, "letters")); 2451 policy.mActivePasswordNumeric = Integer.parseInt( 2452 parser.getAttributeValue(null, "numeric")); 2453 policy.mActivePasswordSymbols = Integer.parseInt( 2454 parser.getAttributeValue(null, "symbols")); 2455 policy.mActivePasswordNonLetter = Integer.parseInt( 2456 parser.getAttributeValue(null, "nonletter")); 2457 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) { 2458 policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME)); 2459 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2460 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2461 } else if (TAG_STATUS_BAR.equals(tag)) { 2462 policy.mStatusBarDisabled = Boolean.parseBoolean( 2463 parser.getAttributeValue(null, ATTR_DISABLED)); 2464 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2465 policy.doNotAskCredentialsOnBoot = true; 2466 } else if (TAG_AFFILIATION_ID.equals(tag)) { 2467 policy.mAffiliationIds.add(parser.getAttributeValue(null, "id")); 2468 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 2469 String pending = parser.getAttributeValue(null, ATTR_VALUE); 2470 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 2471 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 2472 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 2473 } else { 2474 Slog.w(LOG_TAG, "Unknown tag: " + tag); 2475 XmlUtils.skipCurrentTag(parser); 2476 } 2477 } 2478 } catch (FileNotFoundException e) { 2479 // Don't be noisy, this is normal if we haven't defined any policies. 2480 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 2481 | IndexOutOfBoundsException e) { 2482 Slog.w(LOG_TAG, "failed parsing " + file, e); 2483 } 2484 try { 2485 if (stream != null) { 2486 stream.close(); 2487 } 2488 } catch (IOException e) { 2489 // Ignore 2490 } 2491 2492 // Generate a list of admins from the admin map 2493 policy.mAdminList.addAll(policy.mAdminMap.values()); 2494 2495 // Validate that what we stored for the password quality matches 2496 // sufficiently what is currently set. Note that this is only 2497 // a sanity check in case the two get out of sync; this should 2498 // never normally happen. 2499 final long identity = mInjector.binderClearCallingIdentity(); 2500 try { 2501 int actualPasswordQuality = mLockPatternUtils.getActivePasswordQuality(userHandle); 2502 if (actualPasswordQuality < policy.mActivePasswordQuality) { 2503 Slog.w(LOG_TAG, "Active password quality 0x" 2504 + Integer.toHexString(policy.mActivePasswordQuality) 2505 + " does not match actual quality 0x" 2506 + Integer.toHexString(actualPasswordQuality)); 2507 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2508 policy.mActivePasswordLength = 0; 2509 policy.mActivePasswordUpperCase = 0; 2510 policy.mActivePasswordLowerCase = 0; 2511 policy.mActivePasswordLetters = 0; 2512 policy.mActivePasswordNumeric = 0; 2513 policy.mActivePasswordSymbols = 0; 2514 policy.mActivePasswordNonLetter = 0; 2515 } 2516 } finally { 2517 mInjector.binderRestoreCallingIdentity(identity); 2518 } 2519 2520 validatePasswordOwnerLocked(policy); 2521 updateMaximumTimeToLockLocked(userHandle); 2522 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2523 if (policy.mStatusBarDisabled) { 2524 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2525 } 2526 } 2527 2528 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2529 long ident = mInjector.binderClearCallingIdentity(); 2530 try { 2531 mInjector.getIActivityManager() 2532 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2533 } catch (RemoteException e) { 2534 // Not gonna happen. 2535 } finally { 2536 mInjector.binderRestoreCallingIdentity(ident); 2537 } 2538 } 2539 2540 private void updateDeviceOwnerLocked() { 2541 long ident = mInjector.binderClearCallingIdentity(); 2542 try { 2543 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2544 // user id and also protect all other DAs too. 2545 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2546 if (deviceOwnerComponent != null) { 2547 mInjector.getIActivityManager() 2548 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2549 } 2550 } catch (RemoteException e) { 2551 // Not gonna happen. 2552 } finally { 2553 mInjector.binderRestoreCallingIdentity(ident); 2554 } 2555 } 2556 2557 static void validateQualityConstant(int quality) { 2558 switch (quality) { 2559 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2560 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2561 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2562 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2563 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2564 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2565 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2566 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2567 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 2568 return; 2569 } 2570 throw new IllegalArgumentException("Invalid quality constant: 0x" 2571 + Integer.toHexString(quality)); 2572 } 2573 2574 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2575 if (policy.mPasswordOwner >= 0) { 2576 boolean haveOwner = false; 2577 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2578 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2579 haveOwner = true; 2580 break; 2581 } 2582 } 2583 if (!haveOwner) { 2584 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2585 + " no longer active; disabling"); 2586 policy.mPasswordOwner = -1; 2587 } 2588 } 2589 } 2590 2591 @VisibleForTesting 2592 void systemReady(int phase) { 2593 if (!mHasFeature) { 2594 return; 2595 } 2596 switch (phase) { 2597 case SystemService.PHASE_LOCK_SETTINGS_READY: 2598 onLockSettingsReady(); 2599 break; 2600 case SystemService.PHASE_BOOT_COMPLETED: 2601 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2602 break; 2603 } 2604 } 2605 2606 private void onLockSettingsReady() { 2607 getUserData(UserHandle.USER_SYSTEM); 2608 loadOwners(); 2609 cleanUpOldUsers(); 2610 2611 onStartUser(UserHandle.USER_SYSTEM); 2612 2613 // Register an observer for watching for user setup complete. 2614 new SetupContentObserver(mHandler).register(); 2615 // Initialize the user setup state, to handle the upgrade case. 2616 updateUserSetupComplete(); 2617 2618 List<String> packageList; 2619 synchronized (this) { 2620 packageList = getKeepUninstalledPackagesLocked(); 2621 } 2622 if (packageList != null) { 2623 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 2624 } 2625 2626 synchronized (this) { 2627 // push the force-ephemeral-users policy to the user manager. 2628 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 2629 if (deviceOwner != null) { 2630 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 2631 } 2632 } 2633 } 2634 2635 private void ensureDeviceOwnerUserStarted() { 2636 final int userId; 2637 synchronized (this) { 2638 if (!mOwners.hasDeviceOwner()) { 2639 return; 2640 } 2641 userId = mOwners.getDeviceOwnerUserId(); 2642 } 2643 if (VERBOSE_LOG) { 2644 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2645 } 2646 if (userId != UserHandle.USER_SYSTEM) { 2647 try { 2648 mInjector.getIActivityManager().startUserInBackground(userId); 2649 2650 // STOPSHIP Prevent the DO user from being killed. 2651 2652 } catch (RemoteException e) { 2653 Slog.w(LOG_TAG, "Exception starting user", e); 2654 } 2655 } 2656 } 2657 2658 private void onStartUser(int userId) { 2659 updateScreenCaptureDisabledInWindowManager(userId, 2660 getScreenCaptureDisabled(null, userId)); 2661 pushUserRestrictions(userId); 2662 } 2663 2664 private void cleanUpOldUsers() { 2665 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2666 // before reboot 2667 Set<Integer> usersWithProfileOwners; 2668 Set<Integer> usersWithData; 2669 synchronized(this) { 2670 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2671 usersWithData = new ArraySet<>(); 2672 for (int i = 0; i < mUserData.size(); i++) { 2673 usersWithData.add(mUserData.keyAt(i)); 2674 } 2675 } 2676 List<UserInfo> allUsers = mUserManager.getUsers(); 2677 2678 Set<Integer> deletedUsers = new ArraySet<>(); 2679 deletedUsers.addAll(usersWithProfileOwners); 2680 deletedUsers.addAll(usersWithData); 2681 for (UserInfo userInfo : allUsers) { 2682 deletedUsers.remove(userInfo.id); 2683 } 2684 for (Integer userId : deletedUsers) { 2685 removeUserData(userId); 2686 } 2687 } 2688 2689 private void handlePasswordExpirationNotification(int userHandle) { 2690 synchronized (this) { 2691 final long now = System.currentTimeMillis(); 2692 2693 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 2694 userHandle, /* parent */ false); 2695 final int N = admins.size(); 2696 for (int i = 0; i < N; i++) { 2697 ActiveAdmin admin = admins.get(i); 2698 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 2699 && admin.passwordExpirationTimeout > 0L 2700 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2701 && admin.passwordExpirationDate > 0L) { 2702 sendAdminCommandLocked(admin, 2703 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2704 } 2705 } 2706 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 2707 } 2708 } 2709 2710 private class MonitoringCertNotificationTask extends AsyncTask<Integer, Void, Void> { 2711 @Override 2712 protected Void doInBackground(Integer... params) { 2713 int userHandle = params[0]; 2714 2715 if (userHandle == UserHandle.USER_ALL) { 2716 for (UserInfo userInfo : mUserManager.getUsers(true)) { 2717 manageNotification(userInfo.getUserHandle()); 2718 } 2719 } else { 2720 manageNotification(UserHandle.of(userHandle)); 2721 } 2722 return null; 2723 } 2724 2725 private void manageNotification(UserHandle userHandle) { 2726 if (!mUserManager.isUserUnlocked(userHandle)) { 2727 return; 2728 } 2729 2730 // Call out to KeyChain to check for CAs which are waiting for approval. 2731 final List<String> pendingCertificates; 2732 try { 2733 pendingCertificates = getInstalledCaCertificates(userHandle); 2734 } catch (RemoteException | RuntimeException e) { 2735 Log.e(LOG_TAG, "Could not retrieve certificates from KeyChain service", e); 2736 return; 2737 } 2738 2739 synchronized (DevicePolicyManagerService.this) { 2740 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 2741 2742 // Remove deleted certificates. Flush xml if necessary. 2743 if (policy.mAcceptedCaCertificates.retainAll(pendingCertificates)) { 2744 saveSettingsLocked(userHandle.getIdentifier()); 2745 } 2746 // Trim to approved certificates. 2747 pendingCertificates.removeAll(policy.mAcceptedCaCertificates); 2748 } 2749 2750 if (pendingCertificates.isEmpty()) { 2751 mInjector.getNotificationManager().cancelAsUser( 2752 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2753 return; 2754 } 2755 2756 // Build and show a warning notification 2757 int smallIconId; 2758 String contentText; 2759 int parentUserId = userHandle.getIdentifier(); 2760 if (getProfileOwner(userHandle.getIdentifier()) != null) { 2761 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, 2762 getProfileOwnerName(userHandle.getIdentifier())); 2763 smallIconId = R.drawable.stat_sys_certificate_info; 2764 parentUserId = getProfileParentId(userHandle.getIdentifier()); 2765 } else if (getDeviceOwnerUserId() == userHandle.getIdentifier()) { 2766 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, 2767 getDeviceOwnerName()); 2768 smallIconId = R.drawable.stat_sys_certificate_info; 2769 } else { 2770 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2771 smallIconId = android.R.drawable.stat_sys_warning; 2772 } 2773 2774 final int numberOfCertificates = pendingCertificates.size(); 2775 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2776 dialogIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2777 dialogIntent.setPackage("com.android.settings"); 2778 dialogIntent.putExtra(Settings.EXTRA_NUMBER_OF_CERTIFICATES, numberOfCertificates); 2779 dialogIntent.putExtra(Intent.EXTRA_USER_ID, userHandle.getIdentifier()); 2780 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2781 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, 2782 new UserHandle(parentUserId)); 2783 2784 final Context userContext; 2785 try { 2786 final String packageName = mContext.getPackageName(); 2787 userContext = mContext.createPackageContextAsUser(packageName, 0, userHandle); 2788 } catch (PackageManager.NameNotFoundException e) { 2789 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2790 return; 2791 } 2792 final Notification noti = new Notification.Builder(userContext) 2793 .setSmallIcon(smallIconId) 2794 .setContentTitle(mContext.getResources().getQuantityText( 2795 R.plurals.ssl_ca_cert_warning, numberOfCertificates)) 2796 .setContentText(contentText) 2797 .setContentIntent(notifyIntent) 2798 .setPriority(Notification.PRIORITY_HIGH) 2799 .setShowWhen(false) 2800 .setColor(mContext.getColor( 2801 com.android.internal.R.color.system_notification_accent_color)) 2802 .build(); 2803 2804 mInjector.getNotificationManager().notifyAsUser( 2805 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2806 } 2807 2808 private List<String> getInstalledCaCertificates(UserHandle userHandle) 2809 throws RemoteException, RuntimeException { 2810 KeyChainConnection conn = null; 2811 try { 2812 conn = KeyChain.bindAsUser(mContext, userHandle); 2813 List<ParcelableString> aliases = conn.getService().getUserCaAliases().getList(); 2814 List<String> result = new ArrayList<>(aliases.size()); 2815 for (int i = 0; i < aliases.size(); i++) { 2816 result.add(aliases.get(i).string); 2817 } 2818 return result; 2819 } catch (InterruptedException e) { 2820 Thread.currentThread().interrupt(); 2821 return null; 2822 } catch (AssertionError e) { 2823 throw new RuntimeException(e); 2824 } finally { 2825 if (conn != null) { 2826 conn.close(); 2827 } 2828 } 2829 } 2830 } 2831 2832 /** 2833 * @param adminReceiver The admin to add 2834 * @param refreshing true = update an active admin, no error 2835 */ 2836 @Override 2837 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2838 if (!mHasFeature) { 2839 return; 2840 } 2841 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2842 } 2843 2844 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2845 Bundle onEnableData) { 2846 mContext.enforceCallingOrSelfPermission( 2847 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2848 enforceFullCrossUsersPermission(userHandle); 2849 2850 DevicePolicyData policy = getUserData(userHandle); 2851 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 2852 /* throwForMissionPermission= */ true); 2853 if (info == null) { 2854 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2855 } 2856 if (!info.getActivityInfo().applicationInfo.isInternal()) { 2857 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 2858 + adminReceiver); 2859 } 2860 synchronized (this) { 2861 long ident = mInjector.binderClearCallingIdentity(); 2862 try { 2863 final ActiveAdmin existingAdmin 2864 = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2865 if (!refreshing && existingAdmin != null) { 2866 throw new IllegalArgumentException("Admin is already added"); 2867 } 2868 if (policy.mRemovingAdmins.contains(adminReceiver)) { 2869 throw new IllegalArgumentException( 2870 "Trying to set an admin which is being removed"); 2871 } 2872 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 2873 newAdmin.testOnlyAdmin = 2874 (existingAdmin != null) ? existingAdmin.testOnlyAdmin 2875 : isPackageTestOnly(adminReceiver.getPackageName(), userHandle); 2876 policy.mAdminMap.put(adminReceiver, newAdmin); 2877 int replaceIndex = -1; 2878 final int N = policy.mAdminList.size(); 2879 for (int i=0; i < N; i++) { 2880 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2881 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2882 replaceIndex = i; 2883 break; 2884 } 2885 } 2886 if (replaceIndex == -1) { 2887 policy.mAdminList.add(newAdmin); 2888 enableIfNecessary(info.getPackageName(), userHandle); 2889 } else { 2890 policy.mAdminList.set(replaceIndex, newAdmin); 2891 } 2892 saveSettingsLocked(userHandle); 2893 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2894 onEnableData, null); 2895 } finally { 2896 mInjector.binderRestoreCallingIdentity(ident); 2897 } 2898 } 2899 } 2900 2901 @Override 2902 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2903 if (!mHasFeature) { 2904 return false; 2905 } 2906 enforceFullCrossUsersPermission(userHandle); 2907 synchronized (this) { 2908 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2909 } 2910 } 2911 2912 @Override 2913 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2914 if (!mHasFeature) { 2915 return false; 2916 } 2917 enforceFullCrossUsersPermission(userHandle); 2918 synchronized (this) { 2919 DevicePolicyData policyData = getUserData(userHandle); 2920 return policyData.mRemovingAdmins.contains(adminReceiver); 2921 } 2922 } 2923 2924 @Override 2925 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 2926 if (!mHasFeature) { 2927 return false; 2928 } 2929 enforceFullCrossUsersPermission(userHandle); 2930 synchronized (this) { 2931 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2932 if (administrator == null) { 2933 throw new SecurityException("No active admin " + adminReceiver); 2934 } 2935 return administrator.info.usesPolicy(policyId); 2936 } 2937 } 2938 2939 @Override 2940 @SuppressWarnings("unchecked") 2941 public List<ComponentName> getActiveAdmins(int userHandle) { 2942 if (!mHasFeature) { 2943 return Collections.EMPTY_LIST; 2944 } 2945 2946 enforceFullCrossUsersPermission(userHandle); 2947 synchronized (this) { 2948 DevicePolicyData policy = getUserData(userHandle); 2949 final int N = policy.mAdminList.size(); 2950 if (N <= 0) { 2951 return null; 2952 } 2953 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 2954 for (int i=0; i<N; i++) { 2955 res.add(policy.mAdminList.get(i).info.getComponent()); 2956 } 2957 return res; 2958 } 2959 } 2960 2961 @Override 2962 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 2963 if (!mHasFeature) { 2964 return false; 2965 } 2966 enforceFullCrossUsersPermission(userHandle); 2967 synchronized (this) { 2968 DevicePolicyData policy = getUserData(userHandle); 2969 final int N = policy.mAdminList.size(); 2970 for (int i=0; i<N; i++) { 2971 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 2972 return true; 2973 } 2974 } 2975 return false; 2976 } 2977 } 2978 2979 public void forceRemoveActiveAdmin(ComponentName adminReceiver, int userHandle) { 2980 if (!mHasFeature) { 2981 return; 2982 } 2983 Preconditions.checkNotNull(adminReceiver, "ComponentName is null"); 2984 enforceShell("forceRemoveActiveAdmin"); 2985 long ident = mInjector.binderClearCallingIdentity(); 2986 try { 2987 synchronized (this) { 2988 if (!isAdminTestOnlyLocked(adminReceiver, userHandle)) { 2989 throw new SecurityException("Attempt to remove non-test admin " 2990 + adminReceiver + " " + userHandle); 2991 } 2992 2993 // If admin is a device or profile owner tidy that up first. 2994 if (isDeviceOwner(adminReceiver, userHandle)) { 2995 clearDeviceOwnerLocked(getDeviceOwnerAdminLocked(), userHandle); 2996 } 2997 if (isProfileOwner(adminReceiver, userHandle)) { 2998 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, 2999 userHandle, /* parent */ false); 3000 clearProfileOwnerLocked(admin, userHandle); 3001 } 3002 } 3003 // Remove the admin skipping sending the broadcast. 3004 removeAdminArtifacts(adminReceiver, userHandle); 3005 Slog.i(LOG_TAG, "Admin " + adminReceiver + " removed from user " + userHandle); 3006 } finally { 3007 mInjector.binderRestoreCallingIdentity(ident); 3008 } 3009 } 3010 3011 /** 3012 * Return if a given package has testOnly="true", in which case we'll relax certain rules 3013 * for CTS. 3014 * 3015 * DO NOT use this method except in {@link #setActiveAdmin}. Use {@link #isAdminTestOnlyLocked} 3016 * to check wehter an active admin is test-only or not. 3017 * 3018 * The system allows this flag to be changed when an app is updated, which is not good 3019 * for us. So we persist the flag in {@link ActiveAdmin} when an admin is first installed, 3020 * and used the persisted version in actual checks. (See b/31382361 and b/28928996) 3021 */ 3022 private boolean isPackageTestOnly(String packageName, int userHandle) { 3023 final ApplicationInfo ai; 3024 try { 3025 ai = mIPackageManager.getApplicationInfo(packageName, 3026 (PackageManager.MATCH_DIRECT_BOOT_AWARE 3027 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE), userHandle); 3028 } catch (RemoteException e) { 3029 throw new IllegalStateException(e); 3030 } 3031 if (ai == null) { 3032 throw new IllegalStateException("Couldn't find package: " 3033 + packageName + " on user " + userHandle); 3034 } 3035 return (ai.flags & ApplicationInfo.FLAG_TEST_ONLY) != 0; 3036 } 3037 3038 /** 3039 * See {@link #isPackageTestOnly}. 3040 */ 3041 private boolean isAdminTestOnlyLocked(ComponentName who, int userHandle) { 3042 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3043 return (admin != null) && admin.testOnlyAdmin; 3044 } 3045 3046 private void enforceShell(String method) { 3047 final int callingUid = Binder.getCallingUid(); 3048 if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) { 3049 throw new SecurityException("Non-shell user attempted to call " + method); 3050 } 3051 } 3052 3053 @Override 3054 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 3055 if (!mHasFeature) { 3056 return; 3057 } 3058 enforceFullCrossUsersPermission(userHandle); 3059 enforceUserUnlocked(userHandle); 3060 synchronized (this) { 3061 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3062 if (admin == null) { 3063 return; 3064 } 3065 // Active device/profile owners must remain active admins. 3066 if (isDeviceOwner(adminReceiver, userHandle) 3067 || isProfileOwner(adminReceiver, userHandle)) { 3068 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 3069 adminReceiver); 3070 return; 3071 } 3072 if (admin.getUid() != mInjector.binderGetCallingUid()) { 3073 mContext.enforceCallingOrSelfPermission( 3074 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3075 } 3076 long ident = mInjector.binderClearCallingIdentity(); 3077 try { 3078 removeActiveAdminLocked(adminReceiver, userHandle); 3079 } finally { 3080 mInjector.binderRestoreCallingIdentity(ident); 3081 } 3082 } 3083 } 3084 3085 @Override 3086 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 3087 ComponentName profileOwner = getProfileOwner(userHandle); 3088 // Profile challenge is supported on N or newer release. 3089 return profileOwner != null && 3090 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 3091 } 3092 3093 @Override 3094 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 3095 if (!mHasFeature) { 3096 return; 3097 } 3098 Preconditions.checkNotNull(who, "ComponentName is null"); 3099 validateQualityConstant(quality); 3100 3101 synchronized (this) { 3102 ActiveAdmin ap = getActiveAdminForCallerLocked( 3103 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3104 if (ap.passwordQuality != quality) { 3105 ap.passwordQuality = quality; 3106 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3107 } 3108 } 3109 } 3110 3111 @Override 3112 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 3113 if (!mHasFeature) { 3114 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3115 } 3116 enforceFullCrossUsersPermission(userHandle); 3117 synchronized (this) { 3118 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3119 3120 if (who != null) { 3121 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3122 return admin != null ? admin.passwordQuality : mode; 3123 } 3124 3125 // Return the strictest policy across all participating admins. 3126 List<ActiveAdmin> admins = 3127 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3128 final int N = admins.size(); 3129 for (int i = 0; i < N; i++) { 3130 ActiveAdmin admin = admins.get(i); 3131 if (mode < admin.passwordQuality) { 3132 mode = admin.passwordQuality; 3133 } 3134 } 3135 return mode; 3136 } 3137 } 3138 3139 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 3140 int userHandle, boolean parent) { 3141 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 3142 // If this user has a separate challenge, only return its restrictions. 3143 return getUserDataUnchecked(userHandle).mAdminList; 3144 } else { 3145 // Return all admins for this user and the profiles that are visible from this 3146 // user that do not use a separate work challenge. 3147 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 3148 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3149 DevicePolicyData policy = getUserData(userInfo.id); 3150 if (!userInfo.isManagedProfile()) { 3151 admins.addAll(policy.mAdminList); 3152 } else { 3153 // For managed profiles, we always include the policies set on the parent 3154 // profile. Additionally, we include the ones set on the managed profile 3155 // if no separate challenge is in place. 3156 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 3157 final int N = policy.mAdminList.size(); 3158 for (int i = 0; i < N; i++) { 3159 ActiveAdmin admin = policy.mAdminList.get(i); 3160 if (admin.hasParentActiveAdmin()) { 3161 admins.add(admin.getParentActiveAdmin()); 3162 } 3163 if (!hasSeparateChallenge) { 3164 admins.add(admin); 3165 } 3166 } 3167 } 3168 } 3169 return admins; 3170 } 3171 } 3172 3173 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 3174 long ident = mInjector.binderClearCallingIdentity(); 3175 try { 3176 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 3177 } finally { 3178 mInjector.binderRestoreCallingIdentity(ident); 3179 } 3180 } 3181 3182 @Override 3183 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 3184 if (!mHasFeature) { 3185 return; 3186 } 3187 Preconditions.checkNotNull(who, "ComponentName is null"); 3188 synchronized (this) { 3189 ActiveAdmin ap = getActiveAdminForCallerLocked( 3190 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3191 if (ap.minimumPasswordLength != length) { 3192 ap.minimumPasswordLength = length; 3193 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3194 } 3195 } 3196 } 3197 3198 @Override 3199 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 3200 if (!mHasFeature) { 3201 return 0; 3202 } 3203 enforceFullCrossUsersPermission(userHandle); 3204 synchronized (this) { 3205 int length = 0; 3206 3207 if (who != null) { 3208 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3209 return admin != null ? admin.minimumPasswordLength : length; 3210 } 3211 3212 // Return the strictest policy across all participating admins. 3213 List<ActiveAdmin> admins = 3214 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3215 final int N = admins.size(); 3216 for (int i = 0; i < N; i++) { 3217 ActiveAdmin admin = admins.get(i); 3218 if (length < admin.minimumPasswordLength) { 3219 length = admin.minimumPasswordLength; 3220 } 3221 } 3222 return length; 3223 } 3224 } 3225 3226 @Override 3227 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 3228 if (!mHasFeature) { 3229 return; 3230 } 3231 Preconditions.checkNotNull(who, "ComponentName is null"); 3232 synchronized (this) { 3233 ActiveAdmin ap = getActiveAdminForCallerLocked( 3234 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3235 if (ap.passwordHistoryLength != length) { 3236 ap.passwordHistoryLength = length; 3237 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3238 } 3239 } 3240 } 3241 3242 @Override 3243 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 3244 if (!mHasFeature) { 3245 return 0; 3246 } 3247 enforceFullCrossUsersPermission(userHandle); 3248 synchronized (this) { 3249 int length = 0; 3250 3251 if (who != null) { 3252 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3253 return admin != null ? admin.passwordHistoryLength : length; 3254 } 3255 3256 // Return the strictest policy across all participating admins. 3257 List<ActiveAdmin> admins = 3258 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3259 final int N = admins.size(); 3260 for (int i = 0; i < N; i++) { 3261 ActiveAdmin admin = admins.get(i); 3262 if (length < admin.passwordHistoryLength) { 3263 length = admin.passwordHistoryLength; 3264 } 3265 } 3266 3267 return length; 3268 } 3269 } 3270 3271 @Override 3272 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 3273 if (!mHasFeature) { 3274 return; 3275 } 3276 Preconditions.checkNotNull(who, "ComponentName is null"); 3277 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 3278 final int userHandle = mInjector.userHandleGetCallingUserId(); 3279 synchronized (this) { 3280 ActiveAdmin ap = getActiveAdminForCallerLocked( 3281 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 3282 // Calling this API automatically bumps the expiration date 3283 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3284 ap.passwordExpirationDate = expiration; 3285 ap.passwordExpirationTimeout = timeout; 3286 if (timeout > 0L) { 3287 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 3288 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 3289 .format(new Date(expiration))); 3290 } 3291 saveSettingsLocked(userHandle); 3292 3293 // in case this is the first one, set the alarm on the appropriate user. 3294 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 3295 } 3296 } 3297 3298 /** 3299 * Return a single admin's expiration cycle time, or the min of all cycle times. 3300 * Returns 0 if not configured. 3301 */ 3302 @Override 3303 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 3304 if (!mHasFeature) { 3305 return 0L; 3306 } 3307 enforceFullCrossUsersPermission(userHandle); 3308 synchronized (this) { 3309 long timeout = 0L; 3310 3311 if (who != null) { 3312 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3313 return admin != null ? admin.passwordExpirationTimeout : timeout; 3314 } 3315 3316 // Return the strictest policy across all participating admins. 3317 List<ActiveAdmin> admins = 3318 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3319 final int N = admins.size(); 3320 for (int i = 0; i < N; i++) { 3321 ActiveAdmin admin = admins.get(i); 3322 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 3323 && timeout > admin.passwordExpirationTimeout)) { 3324 timeout = admin.passwordExpirationTimeout; 3325 } 3326 } 3327 return timeout; 3328 } 3329 } 3330 3331 @Override 3332 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3333 final int userId = UserHandle.getCallingUserId(); 3334 List<String> changedProviders = null; 3335 3336 synchronized (this) { 3337 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3338 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3339 if (activeAdmin.crossProfileWidgetProviders == null) { 3340 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 3341 } 3342 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3343 if (!providers.contains(packageName)) { 3344 providers.add(packageName); 3345 changedProviders = new ArrayList<>(providers); 3346 saveSettingsLocked(userId); 3347 } 3348 } 3349 3350 if (changedProviders != null) { 3351 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3352 return true; 3353 } 3354 3355 return false; 3356 } 3357 3358 @Override 3359 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3360 final int userId = UserHandle.getCallingUserId(); 3361 List<String> changedProviders = null; 3362 3363 synchronized (this) { 3364 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3365 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3366 if (activeAdmin.crossProfileWidgetProviders == null) { 3367 return false; 3368 } 3369 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3370 if (providers.remove(packageName)) { 3371 changedProviders = new ArrayList<>(providers); 3372 saveSettingsLocked(userId); 3373 } 3374 } 3375 3376 if (changedProviders != null) { 3377 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3378 return true; 3379 } 3380 3381 return false; 3382 } 3383 3384 @Override 3385 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 3386 synchronized (this) { 3387 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3388 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3389 if (activeAdmin.crossProfileWidgetProviders == null 3390 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3391 return null; 3392 } 3393 if (mInjector.binderIsCallingUidMyUid()) { 3394 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 3395 } else { 3396 return activeAdmin.crossProfileWidgetProviders; 3397 } 3398 } 3399 } 3400 3401 /** 3402 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 3403 * Returns 0 if not configured. 3404 */ 3405 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 3406 long timeout = 0L; 3407 3408 if (who != null) { 3409 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3410 return admin != null ? admin.passwordExpirationDate : timeout; 3411 } 3412 3413 // Return the strictest policy across all participating admins. 3414 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3415 final int N = admins.size(); 3416 for (int i = 0; i < N; i++) { 3417 ActiveAdmin admin = admins.get(i); 3418 if (timeout == 0L || (admin.passwordExpirationDate != 0 3419 && timeout > admin.passwordExpirationDate)) { 3420 timeout = admin.passwordExpirationDate; 3421 } 3422 } 3423 return timeout; 3424 } 3425 3426 @Override 3427 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 3428 if (!mHasFeature) { 3429 return 0L; 3430 } 3431 enforceFullCrossUsersPermission(userHandle); 3432 synchronized (this) { 3433 return getPasswordExpirationLocked(who, userHandle, parent); 3434 } 3435 } 3436 3437 @Override 3438 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 3439 if (!mHasFeature) { 3440 return; 3441 } 3442 Preconditions.checkNotNull(who, "ComponentName is null"); 3443 synchronized (this) { 3444 ActiveAdmin ap = getActiveAdminForCallerLocked( 3445 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3446 if (ap.minimumPasswordUpperCase != length) { 3447 ap.minimumPasswordUpperCase = length; 3448 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3449 } 3450 } 3451 } 3452 3453 @Override 3454 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 3455 if (!mHasFeature) { 3456 return 0; 3457 } 3458 enforceFullCrossUsersPermission(userHandle); 3459 synchronized (this) { 3460 int length = 0; 3461 3462 if (who != null) { 3463 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3464 return admin != null ? admin.minimumPasswordUpperCase : length; 3465 } 3466 3467 // Return the strictest policy across all participating admins. 3468 List<ActiveAdmin> admins = 3469 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3470 final int N = admins.size(); 3471 for (int i = 0; i < N; i++) { 3472 ActiveAdmin admin = admins.get(i); 3473 if (length < admin.minimumPasswordUpperCase) { 3474 length = admin.minimumPasswordUpperCase; 3475 } 3476 } 3477 return length; 3478 } 3479 } 3480 3481 @Override 3482 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 3483 Preconditions.checkNotNull(who, "ComponentName is null"); 3484 synchronized (this) { 3485 ActiveAdmin ap = getActiveAdminForCallerLocked( 3486 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3487 if (ap.minimumPasswordLowerCase != length) { 3488 ap.minimumPasswordLowerCase = length; 3489 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3490 } 3491 } 3492 } 3493 3494 @Override 3495 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 3496 if (!mHasFeature) { 3497 return 0; 3498 } 3499 enforceFullCrossUsersPermission(userHandle); 3500 synchronized (this) { 3501 int length = 0; 3502 3503 if (who != null) { 3504 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3505 return admin != null ? admin.minimumPasswordLowerCase : length; 3506 } 3507 3508 // Return the strictest policy across all participating admins. 3509 List<ActiveAdmin> admins = 3510 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3511 final int N = admins.size(); 3512 for (int i = 0; i < N; i++) { 3513 ActiveAdmin admin = admins.get(i); 3514 if (length < admin.minimumPasswordLowerCase) { 3515 length = admin.minimumPasswordLowerCase; 3516 } 3517 } 3518 return length; 3519 } 3520 } 3521 3522 @Override 3523 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 3524 if (!mHasFeature) { 3525 return; 3526 } 3527 Preconditions.checkNotNull(who, "ComponentName is null"); 3528 synchronized (this) { 3529 ActiveAdmin ap = getActiveAdminForCallerLocked( 3530 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3531 if (ap.minimumPasswordLetters != length) { 3532 ap.minimumPasswordLetters = length; 3533 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3534 } 3535 } 3536 } 3537 3538 @Override 3539 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 3540 if (!mHasFeature) { 3541 return 0; 3542 } 3543 enforceFullCrossUsersPermission(userHandle); 3544 synchronized (this) { 3545 int length = 0; 3546 3547 if (who != null) { 3548 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3549 return admin != null ? admin.minimumPasswordLetters : length; 3550 } 3551 3552 // Return the strictest policy across all participating admins. 3553 List<ActiveAdmin> admins = 3554 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3555 final int N = admins.size(); 3556 for (int i = 0; i < N; i++) { 3557 ActiveAdmin admin = admins.get(i); 3558 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3559 continue; 3560 } 3561 if (length < admin.minimumPasswordLetters) { 3562 length = admin.minimumPasswordLetters; 3563 } 3564 } 3565 return length; 3566 } 3567 } 3568 3569 @Override 3570 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 3571 if (!mHasFeature) { 3572 return; 3573 } 3574 Preconditions.checkNotNull(who, "ComponentName is null"); 3575 synchronized (this) { 3576 ActiveAdmin ap = getActiveAdminForCallerLocked( 3577 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3578 if (ap.minimumPasswordNumeric != length) { 3579 ap.minimumPasswordNumeric = length; 3580 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3581 } 3582 } 3583 } 3584 3585 @Override 3586 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 3587 if (!mHasFeature) { 3588 return 0; 3589 } 3590 enforceFullCrossUsersPermission(userHandle); 3591 synchronized (this) { 3592 int length = 0; 3593 3594 if (who != null) { 3595 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3596 return admin != null ? admin.minimumPasswordNumeric : length; 3597 } 3598 3599 // Return the strictest policy across all participating admins. 3600 List<ActiveAdmin> admins = 3601 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3602 final int N = admins.size(); 3603 for (int i = 0; i < N; i++) { 3604 ActiveAdmin admin = admins.get(i); 3605 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3606 continue; 3607 } 3608 if (length < admin.minimumPasswordNumeric) { 3609 length = admin.minimumPasswordNumeric; 3610 } 3611 } 3612 return length; 3613 } 3614 } 3615 3616 @Override 3617 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 3618 if (!mHasFeature) { 3619 return; 3620 } 3621 Preconditions.checkNotNull(who, "ComponentName is null"); 3622 synchronized (this) { 3623 ActiveAdmin ap = getActiveAdminForCallerLocked( 3624 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3625 if (ap.minimumPasswordSymbols != length) { 3626 ap.minimumPasswordSymbols = length; 3627 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3628 } 3629 } 3630 } 3631 3632 @Override 3633 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 3634 if (!mHasFeature) { 3635 return 0; 3636 } 3637 enforceFullCrossUsersPermission(userHandle); 3638 synchronized (this) { 3639 int length = 0; 3640 3641 if (who != null) { 3642 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3643 return admin != null ? admin.minimumPasswordSymbols : length; 3644 } 3645 3646 // Return the strictest policy across all participating admins. 3647 List<ActiveAdmin> admins = 3648 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3649 final int N = admins.size(); 3650 for (int i = 0; i < N; i++) { 3651 ActiveAdmin admin = admins.get(i); 3652 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3653 continue; 3654 } 3655 if (length < admin.minimumPasswordSymbols) { 3656 length = admin.minimumPasswordSymbols; 3657 } 3658 } 3659 return length; 3660 } 3661 } 3662 3663 @Override 3664 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 3665 if (!mHasFeature) { 3666 return; 3667 } 3668 Preconditions.checkNotNull(who, "ComponentName is null"); 3669 synchronized (this) { 3670 ActiveAdmin ap = getActiveAdminForCallerLocked( 3671 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3672 if (ap.minimumPasswordNonLetter != length) { 3673 ap.minimumPasswordNonLetter = length; 3674 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3675 } 3676 } 3677 } 3678 3679 @Override 3680 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 3681 if (!mHasFeature) { 3682 return 0; 3683 } 3684 enforceFullCrossUsersPermission(userHandle); 3685 synchronized (this) { 3686 int length = 0; 3687 3688 if (who != null) { 3689 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3690 return admin != null ? admin.minimumPasswordNonLetter : length; 3691 } 3692 3693 // Return the strictest policy across all participating admins. 3694 List<ActiveAdmin> admins = 3695 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3696 final int N = admins.size(); 3697 for (int i = 0; i < N; i++) { 3698 ActiveAdmin admin = admins.get(i); 3699 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3700 continue; 3701 } 3702 if (length < admin.minimumPasswordNonLetter) { 3703 length = admin.minimumPasswordNonLetter; 3704 } 3705 } 3706 return length; 3707 } 3708 } 3709 3710 @Override 3711 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 3712 if (!mHasFeature) { 3713 return true; 3714 } 3715 enforceFullCrossUsersPermission(userHandle); 3716 3717 synchronized (this) { 3718 // This API can only be called by an active device admin, 3719 // so try to retrieve it to check that the caller is one. 3720 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3721 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3722 return isActivePasswordSufficientForUserLocked(policy, userHandle, parent); 3723 } 3724 } 3725 3726 @Override 3727 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 3728 if (!mHasFeature) { 3729 return true; 3730 } 3731 enforceFullCrossUsersPermission(userHandle); 3732 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 3733 3734 synchronized (this) { 3735 int targetUser = getProfileParentId(userHandle); 3736 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false)); 3737 return isActivePasswordSufficientForUserLocked(policy, targetUser, false); 3738 } 3739 } 3740 3741 private boolean isActivePasswordSufficientForUserLocked( 3742 DevicePolicyData policy, int userHandle, boolean parent) { 3743 final int requiredPasswordQuality = getPasswordQuality(null, userHandle, parent); 3744 if (policy.mActivePasswordQuality < requiredPasswordQuality) { 3745 return false; 3746 } 3747 if (requiredPasswordQuality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC 3748 && policy.mActivePasswordLength < getPasswordMinimumLength( 3749 null, userHandle, parent)) { 3750 return false; 3751 } 3752 if (requiredPasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3753 return true; 3754 } 3755 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase( 3756 null, userHandle, parent) 3757 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase( 3758 null, userHandle, parent) 3759 && policy.mActivePasswordLetters >= getPasswordMinimumLetters( 3760 null, userHandle, parent) 3761 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric( 3762 null, userHandle, parent) 3763 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols( 3764 null, userHandle, parent) 3765 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter( 3766 null, userHandle, parent); 3767 } 3768 3769 @Override 3770 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 3771 enforceFullCrossUsersPermission(userHandle); 3772 synchronized (this) { 3773 if (!isCallerWithSystemUid()) { 3774 // This API can only be called by an active device admin, 3775 // so try to retrieve it to check that the caller is one. 3776 getActiveAdminForCallerLocked( 3777 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 3778 } 3779 3780 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3781 3782 return policy.mFailedPasswordAttempts; 3783 } 3784 } 3785 3786 @Override 3787 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 3788 if (!mHasFeature) { 3789 return; 3790 } 3791 Preconditions.checkNotNull(who, "ComponentName is null"); 3792 synchronized (this) { 3793 // This API can only be called by an active device admin, 3794 // so try to retrieve it to check that the caller is one. 3795 getActiveAdminForCallerLocked( 3796 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 3797 ActiveAdmin ap = getActiveAdminForCallerLocked( 3798 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 3799 if (ap.maximumFailedPasswordsForWipe != num) { 3800 ap.maximumFailedPasswordsForWipe = num; 3801 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3802 } 3803 } 3804 } 3805 3806 @Override 3807 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 3808 if (!mHasFeature) { 3809 return 0; 3810 } 3811 enforceFullCrossUsersPermission(userHandle); 3812 synchronized (this) { 3813 ActiveAdmin admin = (who != null) 3814 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 3815 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 3816 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 3817 } 3818 } 3819 3820 @Override 3821 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 3822 if (!mHasFeature) { 3823 return UserHandle.USER_NULL; 3824 } 3825 enforceFullCrossUsersPermission(userHandle); 3826 synchronized (this) { 3827 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 3828 userHandle, parent); 3829 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 3830 } 3831 } 3832 3833 /** 3834 * Returns the admin with the strictest policy on maximum failed passwords for: 3835 * <ul> 3836 * <li>this user if it has a separate profile challenge, or 3837 * <li>this user and all profiles that don't have their own challenge otherwise. 3838 * </ul> 3839 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 3840 * the primary profile. 3841 * Returns {@code null} if no participating admin has that policy set. 3842 */ 3843 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 3844 int userHandle, boolean parent) { 3845 int count = 0; 3846 ActiveAdmin strictestAdmin = null; 3847 3848 // Return the strictest policy across all participating admins. 3849 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3850 final int N = admins.size(); 3851 for (int i = 0; i < N; i++) { 3852 ActiveAdmin admin = admins.get(i); 3853 if (admin.maximumFailedPasswordsForWipe == 3854 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 3855 continue; // No max number of failed passwords policy set for this profile. 3856 } 3857 3858 // We always favor the primary profile if several profiles have the same value set. 3859 int userId = admin.getUserHandle().getIdentifier(); 3860 if (count == 0 || 3861 count > admin.maximumFailedPasswordsForWipe || 3862 (count == admin.maximumFailedPasswordsForWipe && 3863 getUserInfo(userId).isPrimary())) { 3864 count = admin.maximumFailedPasswordsForWipe; 3865 strictestAdmin = admin; 3866 } 3867 } 3868 return strictestAdmin; 3869 } 3870 3871 private UserInfo getUserInfo(@UserIdInt int userId) { 3872 final long token = mInjector.binderClearCallingIdentity(); 3873 try { 3874 return mUserManager.getUserInfo(userId); 3875 } finally { 3876 mInjector.binderRestoreCallingIdentity(token); 3877 } 3878 } 3879 3880 @Override 3881 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 3882 if (!mHasFeature) { 3883 return false; 3884 } 3885 final int callingUid = mInjector.binderGetCallingUid(); 3886 final int userHandle = mInjector.userHandleGetCallingUserId(); 3887 3888 String password = passwordOrNull != null ? passwordOrNull : ""; 3889 3890 // Password resetting to empty/null is not allowed for managed profiles. 3891 if (TextUtils.isEmpty(password)) { 3892 enforceNotManagedProfile(userHandle, "clear the active password"); 3893 } 3894 3895 int quality; 3896 synchronized (this) { 3897 // If caller has PO (or DO) it can change the password, so see if that's the case first. 3898 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 3899 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 3900 final boolean preN; 3901 if (admin != null) { 3902 preN = getTargetSdk(admin.info.getPackageName(), 3903 userHandle) <= android.os.Build.VERSION_CODES.M; 3904 } else { 3905 // Otherwise, make sure the caller has any active admin with the right policy. 3906 admin = getActiveAdminForCallerLocked(null, 3907 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3908 preN = getTargetSdk(admin.info.getPackageName(), 3909 userHandle) <= android.os.Build.VERSION_CODES.M; 3910 3911 // As of N, password resetting to empty/null is not allowed anymore. 3912 // TODO Should we allow DO/PO to set an empty password? 3913 if (TextUtils.isEmpty(password)) { 3914 if (!preN) { 3915 throw new SecurityException("Cannot call with null password"); 3916 } else { 3917 Slog.e(LOG_TAG, "Cannot call with null password"); 3918 return false; 3919 } 3920 } 3921 // As of N, password cannot be changed by the admin if it is already set. 3922 if (isLockScreenSecureUnchecked(userHandle)) { 3923 if (!preN) { 3924 throw new SecurityException("Admin cannot change current password"); 3925 } else { 3926 Slog.e(LOG_TAG, "Admin cannot change current password"); 3927 return false; 3928 } 3929 } 3930 } 3931 // Do not allow to reset password when current user has a managed profile 3932 if (!isManagedProfile(userHandle)) { 3933 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3934 if (userInfo.isManagedProfile()) { 3935 if (!preN) { 3936 throw new IllegalStateException( 3937 "Cannot reset password on user has managed profile"); 3938 } else { 3939 Slog.e(LOG_TAG, "Cannot reset password on user has managed profile"); 3940 return false; 3941 } 3942 } 3943 } 3944 } 3945 // Do not allow to reset password when user is locked 3946 if (!mUserManager.isUserUnlocked(userHandle)) { 3947 if (!preN) { 3948 throw new IllegalStateException("Cannot reset password when user is locked"); 3949 } else { 3950 Slog.e(LOG_TAG, "Cannot reset password when user is locked"); 3951 return false; 3952 } 3953 } 3954 3955 quality = getPasswordQuality(null, userHandle, /* parent */ false); 3956 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 3957 quality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3958 } 3959 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 3960 int realQuality = LockPatternUtils.computePasswordQuality(password); 3961 if (realQuality < quality 3962 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3963 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 3964 + Integer.toHexString(realQuality) 3965 + " does not meet required quality 0x" 3966 + Integer.toHexString(quality)); 3967 return false; 3968 } 3969 quality = Math.max(realQuality, quality); 3970 } 3971 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 3972 if (password.length() < length) { 3973 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 3974 + " does not meet required length " + length); 3975 return false; 3976 } 3977 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3978 int letters = 0; 3979 int uppercase = 0; 3980 int lowercase = 0; 3981 int numbers = 0; 3982 int symbols = 0; 3983 int nonletter = 0; 3984 for (int i = 0; i < password.length(); i++) { 3985 char c = password.charAt(i); 3986 if (c >= 'A' && c <= 'Z') { 3987 letters++; 3988 uppercase++; 3989 } else if (c >= 'a' && c <= 'z') { 3990 letters++; 3991 lowercase++; 3992 } else if (c >= '0' && c <= '9') { 3993 numbers++; 3994 nonletter++; 3995 } else { 3996 symbols++; 3997 nonletter++; 3998 } 3999 } 4000 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 4001 if(letters < neededLetters) { 4002 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 4003 + " does not meet required number of letters " + neededLetters); 4004 return false; 4005 } 4006 int neededNumbers = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 4007 if (numbers < neededNumbers) { 4008 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 4009 + " does not meet required number of numerical digits " 4010 + neededNumbers); 4011 return false; 4012 } 4013 int neededLowerCase = getPasswordMinimumLowerCase( 4014 null, userHandle, /* parent */ false); 4015 if (lowercase < neededLowerCase) { 4016 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 4017 + " does not meet required number of lowercase letters " 4018 + neededLowerCase); 4019 return false; 4020 } 4021 int neededUpperCase = getPasswordMinimumUpperCase( 4022 null, userHandle, /* parent */ false); 4023 if (uppercase < neededUpperCase) { 4024 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 4025 + " does not meet required number of uppercase letters " 4026 + neededUpperCase); 4027 return false; 4028 } 4029 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 4030 if (symbols < neededSymbols) { 4031 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 4032 + " does not meet required number of special symbols " + neededSymbols); 4033 return false; 4034 } 4035 int neededNonLetter = getPasswordMinimumNonLetter( 4036 null, userHandle, /* parent */ false); 4037 if (nonletter < neededNonLetter) { 4038 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 4039 + " does not meet required number of non-letter characters " 4040 + neededNonLetter); 4041 return false; 4042 } 4043 } 4044 } 4045 4046 DevicePolicyData policy = getUserData(userHandle); 4047 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 4048 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 4049 return false; 4050 } 4051 4052 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 4053 boolean doNotAskCredentialsOnBoot = 4054 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 4055 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 4056 setDoNotAskCredentialsOnBoot(); 4057 } 4058 4059 // Don't do this with the lock held, because it is going to call 4060 // back in to the service. 4061 final long ident = mInjector.binderClearCallingIdentity(); 4062 try { 4063 if (!TextUtils.isEmpty(password)) { 4064 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 4065 } else { 4066 mLockPatternUtils.clearLock(userHandle); 4067 } 4068 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 4069 if (requireEntry) { 4070 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 4071 UserHandle.USER_ALL); 4072 } 4073 synchronized (this) { 4074 int newOwner = requireEntry ? callingUid : -1; 4075 if (policy.mPasswordOwner != newOwner) { 4076 policy.mPasswordOwner = newOwner; 4077 saveSettingsLocked(userHandle); 4078 } 4079 } 4080 } finally { 4081 mInjector.binderRestoreCallingIdentity(ident); 4082 } 4083 4084 return true; 4085 } 4086 4087 private boolean isLockScreenSecureUnchecked(int userId) { 4088 long ident = mInjector.binderClearCallingIdentity(); 4089 try { 4090 return mLockPatternUtils.isSecure(userId); 4091 } finally { 4092 mInjector.binderRestoreCallingIdentity(ident); 4093 } 4094 } 4095 4096 private void setDoNotAskCredentialsOnBoot() { 4097 synchronized (this) { 4098 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4099 if (!policyData.doNotAskCredentialsOnBoot) { 4100 policyData.doNotAskCredentialsOnBoot = true; 4101 saveSettingsLocked(UserHandle.USER_SYSTEM); 4102 } 4103 } 4104 } 4105 4106 @Override 4107 public boolean getDoNotAskCredentialsOnBoot() { 4108 mContext.enforceCallingOrSelfPermission( 4109 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 4110 synchronized (this) { 4111 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4112 return policyData.doNotAskCredentialsOnBoot; 4113 } 4114 } 4115 4116 @Override 4117 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 4118 if (!mHasFeature) { 4119 return; 4120 } 4121 Preconditions.checkNotNull(who, "ComponentName is null"); 4122 final int userHandle = mInjector.userHandleGetCallingUserId(); 4123 synchronized (this) { 4124 ActiveAdmin ap = getActiveAdminForCallerLocked( 4125 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4126 if (ap.maximumTimeToUnlock != timeMs) { 4127 ap.maximumTimeToUnlock = timeMs; 4128 saveSettingsLocked(userHandle); 4129 updateMaximumTimeToLockLocked(userHandle); 4130 } 4131 } 4132 } 4133 4134 void updateMaximumTimeToLockLocked(int userHandle) { 4135 // Calculate the min timeout for all profiles - including the ones with a separate 4136 // challenge. Ideally if the timeout only affected the profile challenge we'd lock that 4137 // challenge only and keep the screen on. However there is no easy way of doing that at the 4138 // moment so we set the screen off timeout regardless of whether it affects the parent user 4139 // or the profile challenge only. 4140 long timeMs = Long.MAX_VALUE; 4141 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 4142 for (int profileId : profileIds) { 4143 DevicePolicyData policy = getUserDataUnchecked(profileId); 4144 final int N = policy.mAdminList.size(); 4145 for (int i = 0; i < N; i++) { 4146 ActiveAdmin admin = policy.mAdminList.get(i); 4147 if (admin.maximumTimeToUnlock > 0 4148 && timeMs > admin.maximumTimeToUnlock) { 4149 timeMs = admin.maximumTimeToUnlock; 4150 } 4151 // If userInfo.id is a managed profile, we also need to look at 4152 // the policies set on the parent. 4153 if (admin.hasParentActiveAdmin()) { 4154 final ActiveAdmin parentAdmin = admin.getParentActiveAdmin(); 4155 if (parentAdmin.maximumTimeToUnlock > 0 4156 && timeMs > parentAdmin.maximumTimeToUnlock) { 4157 timeMs = parentAdmin.maximumTimeToUnlock; 4158 } 4159 } 4160 } 4161 } 4162 4163 // We only store the last maximum time to lock on the parent profile. So if calling from a 4164 // managed profile, retrieve the policy for the parent. 4165 DevicePolicyData policy = getUserDataUnchecked(getProfileParentId(userHandle)); 4166 if (policy.mLastMaximumTimeToLock == timeMs) { 4167 return; 4168 } 4169 policy.mLastMaximumTimeToLock = timeMs; 4170 4171 final long ident = mInjector.binderClearCallingIdentity(); 4172 try { 4173 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 4174 // Make sure KEEP_SCREEN_ON is disabled, since that 4175 // would allow bypassing of the maximum time to lock. 4176 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 4177 } 4178 4179 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4180 (int) Math.min(policy.mLastMaximumTimeToLock, Integer.MAX_VALUE)); 4181 } finally { 4182 mInjector.binderRestoreCallingIdentity(ident); 4183 } 4184 } 4185 4186 @Override 4187 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 4188 if (!mHasFeature) { 4189 return 0; 4190 } 4191 enforceFullCrossUsersPermission(userHandle); 4192 synchronized (this) { 4193 if (who != null) { 4194 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4195 return admin != null ? admin.maximumTimeToUnlock : 0; 4196 } 4197 // Return the strictest policy across all participating admins. 4198 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4199 userHandle, parent); 4200 return getMaximumTimeToLockPolicyFromAdmins(admins); 4201 } 4202 } 4203 4204 @Override 4205 public long getMaximumTimeToLockForUserAndProfiles(int userHandle) { 4206 if (!mHasFeature) { 4207 return 0; 4208 } 4209 enforceFullCrossUsersPermission(userHandle); 4210 synchronized (this) { 4211 // All admins for this user. 4212 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 4213 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4214 DevicePolicyData policy = getUserData(userInfo.id); 4215 admins.addAll(policy.mAdminList); 4216 // If it is a managed profile, it may have parent active admins 4217 if (userInfo.isManagedProfile()) { 4218 for (ActiveAdmin admin : policy.mAdminList) { 4219 if (admin.hasParentActiveAdmin()) { 4220 admins.add(admin.getParentActiveAdmin()); 4221 } 4222 } 4223 } 4224 } 4225 return getMaximumTimeToLockPolicyFromAdmins(admins); 4226 } 4227 } 4228 4229 private long getMaximumTimeToLockPolicyFromAdmins(List<ActiveAdmin> admins) { 4230 long time = 0; 4231 final int N = admins.size(); 4232 for (int i = 0; i < N; i++) { 4233 ActiveAdmin admin = admins.get(i); 4234 if (time == 0) { 4235 time = admin.maximumTimeToUnlock; 4236 } else if (admin.maximumTimeToUnlock != 0 4237 && time > admin.maximumTimeToUnlock) { 4238 time = admin.maximumTimeToUnlock; 4239 } 4240 } 4241 return time; 4242 } 4243 4244 @Override 4245 public void setRequiredStrongAuthTimeout(ComponentName who, long timeoutMs, 4246 boolean parent) { 4247 if (!mHasFeature) { 4248 return; 4249 } 4250 Preconditions.checkNotNull(who, "ComponentName is null"); 4251 Preconditions.checkArgument(timeoutMs >= MINIMUM_STRONG_AUTH_TIMEOUT_MS, 4252 "Timeout must not be lower than the minimum strong auth timeout."); 4253 Preconditions.checkArgument(timeoutMs <= DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS, 4254 "Timeout must not be higher than the default strong auth timeout."); 4255 4256 final int userHandle = mInjector.userHandleGetCallingUserId(); 4257 synchronized (this) { 4258 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4259 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 4260 if (ap.strongAuthUnlockTimeout != timeoutMs) { 4261 ap.strongAuthUnlockTimeout = timeoutMs; 4262 saveSettingsLocked(userHandle); 4263 } 4264 } 4265 } 4266 4267 /** 4268 * Return a single admin's strong auth unlock timeout or minimum value (strictest) of all 4269 * admins if who is null. 4270 * Returns default timeout if not configured. 4271 */ 4272 @Override 4273 public long getRequiredStrongAuthTimeout(ComponentName who, int userId, boolean parent) { 4274 if (!mHasFeature) { 4275 return DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4276 } 4277 enforceFullCrossUsersPermission(userId); 4278 synchronized (this) { 4279 if (who != null) { 4280 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId, parent); 4281 return admin != null ? Math.max(admin.strongAuthUnlockTimeout, 4282 MINIMUM_STRONG_AUTH_TIMEOUT_MS) 4283 : DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4284 } 4285 4286 // Return the strictest policy across all participating admins. 4287 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userId, parent); 4288 4289 long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4290 for (int i = 0; i < admins.size(); i++) { 4291 strongAuthUnlockTimeout = Math.min(admins.get(i).strongAuthUnlockTimeout, 4292 strongAuthUnlockTimeout); 4293 } 4294 return Math.max(strongAuthUnlockTimeout, MINIMUM_STRONG_AUTH_TIMEOUT_MS); 4295 } 4296 } 4297 4298 @Override 4299 public void lockNow(boolean parent) { 4300 if (!mHasFeature) { 4301 return; 4302 } 4303 synchronized (this) { 4304 // This API can only be called by an active device admin, 4305 // so try to retrieve it to check that the caller is one. 4306 getActiveAdminForCallerLocked( 4307 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4308 4309 int userToLock = mInjector.userHandleGetCallingUserId(); 4310 4311 // Unless this is a managed profile with work challenge enabled, lock all users. 4312 if (parent || !isSeparateProfileChallengeEnabled(userToLock)) { 4313 userToLock = UserHandle.USER_ALL; 4314 } 4315 final long ident = mInjector.binderClearCallingIdentity(); 4316 try { 4317 mLockPatternUtils.requireStrongAuth( 4318 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 4319 if (userToLock == UserHandle.USER_ALL) { 4320 // Power off the display 4321 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 4322 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 4323 mInjector.getIWindowManager().lockNow(null); 4324 } else { 4325 mInjector.getTrustManager().setDeviceLockedForUser(userToLock, true); 4326 } 4327 } catch (RemoteException e) { 4328 } finally { 4329 mInjector.binderRestoreCallingIdentity(ident); 4330 } 4331 } 4332 } 4333 4334 @Override 4335 public void enforceCanManageCaCerts(ComponentName who) { 4336 if (who == null) { 4337 if (!isCallerDelegatedCertInstaller()) { 4338 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 4339 } 4340 } else { 4341 synchronized (this) { 4342 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4343 } 4344 } 4345 } 4346 4347 private void enforceCanManageInstalledKeys(ComponentName who) { 4348 if (who == null) { 4349 if (!isCallerDelegatedCertInstaller()) { 4350 throw new SecurityException("who == null, but caller is not cert installer"); 4351 } 4352 } else { 4353 synchronized (this) { 4354 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4355 } 4356 } 4357 } 4358 4359 private boolean isCallerDelegatedCertInstaller() { 4360 final int callingUid = mInjector.binderGetCallingUid(); 4361 final int userHandle = UserHandle.getUserId(callingUid); 4362 synchronized (this) { 4363 final DevicePolicyData policy = getUserData(userHandle); 4364 if (policy.mDelegatedCertInstallerPackage == null) { 4365 return false; 4366 } 4367 4368 try { 4369 int uid = mContext.getPackageManager().getPackageUidAsUser( 4370 policy.mDelegatedCertInstallerPackage, userHandle); 4371 return uid == callingUid; 4372 } catch (NameNotFoundException e) { 4373 return false; 4374 } 4375 } 4376 } 4377 4378 @Override 4379 public boolean approveCaCert(String alias, int userId, boolean approval) { 4380 enforceManageUsers(); 4381 synchronized (this) { 4382 Set<String> certs = getUserData(userId).mAcceptedCaCertificates; 4383 boolean changed = (approval ? certs.add(alias) : certs.remove(alias)); 4384 if (!changed) { 4385 return false; 4386 } 4387 saveSettingsLocked(userId); 4388 } 4389 new MonitoringCertNotificationTask().execute(userId); 4390 return true; 4391 } 4392 4393 @Override 4394 public boolean isCaCertApproved(String alias, int userId) { 4395 enforceManageUsers(); 4396 synchronized (this) { 4397 return getUserData(userId).mAcceptedCaCertificates.contains(alias); 4398 } 4399 } 4400 4401 private void removeCaApprovalsIfNeeded(int userId) { 4402 for (UserInfo userInfo : mUserManager.getProfiles(userId)) { 4403 boolean isSecure = mLockPatternUtils.isSecure(userInfo.id); 4404 if (userInfo.isManagedProfile()){ 4405 isSecure |= mLockPatternUtils.isSecure(getProfileParentId(userInfo.id)); 4406 } 4407 if (!isSecure) { 4408 synchronized (this) { 4409 getUserData(userInfo.id).mAcceptedCaCertificates.clear(); 4410 saveSettingsLocked(userInfo.id); 4411 } 4412 4413 new MonitoringCertNotificationTask().execute(userInfo.id); 4414 } 4415 } 4416 } 4417 4418 @Override 4419 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 4420 enforceCanManageCaCerts(admin); 4421 4422 byte[] pemCert; 4423 try { 4424 X509Certificate cert = parseCert(certBuffer); 4425 pemCert = Credentials.convertToPem(cert); 4426 } catch (CertificateException ce) { 4427 Log.e(LOG_TAG, "Problem converting cert", ce); 4428 return false; 4429 } catch (IOException ioe) { 4430 Log.e(LOG_TAG, "Problem reading cert", ioe); 4431 return false; 4432 } 4433 4434 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4435 final long id = mInjector.binderClearCallingIdentity(); 4436 try { 4437 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4438 try { 4439 keyChainConnection.getService().installCaCertificate(pemCert); 4440 return true; 4441 } catch (RemoteException e) { 4442 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 4443 } finally { 4444 keyChainConnection.close(); 4445 } 4446 } catch (InterruptedException e1) { 4447 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 4448 Thread.currentThread().interrupt(); 4449 } finally { 4450 mInjector.binderRestoreCallingIdentity(id); 4451 } 4452 return false; 4453 } 4454 4455 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 4456 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 4457 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 4458 certBuffer)); 4459 } 4460 4461 @Override 4462 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 4463 enforceCanManageCaCerts(admin); 4464 4465 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4466 final long id = mInjector.binderClearCallingIdentity(); 4467 try { 4468 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4469 try { 4470 for (int i = 0 ; i < aliases.length; i++) { 4471 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 4472 } 4473 } catch (RemoteException e) { 4474 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 4475 } finally { 4476 keyChainConnection.close(); 4477 } 4478 } catch (InterruptedException ie) { 4479 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 4480 Thread.currentThread().interrupt(); 4481 } finally { 4482 mInjector.binderRestoreCallingIdentity(id); 4483 } 4484 } 4485 4486 @Override 4487 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, byte[] chain, 4488 String alias, boolean requestAccess) { 4489 enforceCanManageInstalledKeys(who); 4490 4491 final int callingUid = mInjector.binderGetCallingUid(); 4492 final long id = mInjector.binderClearCallingIdentity(); 4493 try { 4494 final KeyChainConnection keyChainConnection = 4495 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 4496 try { 4497 IKeyChainService keyChain = keyChainConnection.getService(); 4498 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) { 4499 return false; 4500 } 4501 if (requestAccess) { 4502 keyChain.setGrant(callingUid, alias, true); 4503 } 4504 return true; 4505 } catch (RemoteException e) { 4506 Log.e(LOG_TAG, "Installing certificate", e); 4507 } finally { 4508 keyChainConnection.close(); 4509 } 4510 } catch (InterruptedException e) { 4511 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 4512 Thread.currentThread().interrupt(); 4513 } finally { 4514 mInjector.binderRestoreCallingIdentity(id); 4515 } 4516 return false; 4517 } 4518 4519 @Override 4520 public boolean removeKeyPair(ComponentName who, String alias) { 4521 enforceCanManageInstalledKeys(who); 4522 4523 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4524 final long id = Binder.clearCallingIdentity(); 4525 try { 4526 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4527 try { 4528 IKeyChainService keyChain = keyChainConnection.getService(); 4529 return keyChain.removeKeyPair(alias); 4530 } catch (RemoteException e) { 4531 Log.e(LOG_TAG, "Removing keypair", e); 4532 } finally { 4533 keyChainConnection.close(); 4534 } 4535 } catch (InterruptedException e) { 4536 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 4537 Thread.currentThread().interrupt(); 4538 } finally { 4539 Binder.restoreCallingIdentity(id); 4540 } 4541 return false; 4542 } 4543 4544 @Override 4545 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 4546 final IBinder response) { 4547 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 4548 if (!isCallerWithSystemUid()) { 4549 return; 4550 } 4551 4552 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 4553 // If there is a profile owner, redirect to that; otherwise query the device owner. 4554 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 4555 if (aliasChooser == null && caller.isSystem()) { 4556 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 4557 if (deviceOwnerAdmin != null) { 4558 aliasChooser = deviceOwnerAdmin.info.getComponent(); 4559 } 4560 } 4561 if (aliasChooser == null) { 4562 sendPrivateKeyAliasResponse(null, response); 4563 return; 4564 } 4565 4566 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 4567 intent.setComponent(aliasChooser); 4568 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 4569 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 4570 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 4571 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 4572 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4573 4574 final long id = mInjector.binderClearCallingIdentity(); 4575 try { 4576 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 4577 @Override 4578 public void onReceive(Context context, Intent intent) { 4579 final String chosenAlias = getResultData(); 4580 sendPrivateKeyAliasResponse(chosenAlias, response); 4581 } 4582 }, null, Activity.RESULT_OK, null, null); 4583 } finally { 4584 mInjector.binderRestoreCallingIdentity(id); 4585 } 4586 } 4587 4588 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 4589 final IKeyChainAliasCallback keyChainAliasResponse = 4590 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 4591 new AsyncTask<Void, Void, Void>() { 4592 @Override 4593 protected Void doInBackground(Void... unused) { 4594 try { 4595 keyChainAliasResponse.alias(alias); 4596 } catch (Exception e) { 4597 // Catch everything (not just RemoteException): caller could throw a 4598 // RuntimeException back across processes. 4599 Log.e(LOG_TAG, "error while responding to callback", e); 4600 } 4601 return null; 4602 } 4603 }.execute(); 4604 } 4605 4606 @Override 4607 public void setCertInstallerPackage(ComponentName who, String installerPackage) 4608 throws SecurityException { 4609 int userHandle = UserHandle.getCallingUserId(); 4610 synchronized (this) { 4611 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4612 if (getTargetSdk(who.getPackageName(), userHandle) >= Build.VERSION_CODES.N) { 4613 if (installerPackage != null && 4614 !isPackageInstalledForUser(installerPackage, userHandle)) { 4615 throw new IllegalArgumentException("Package " + installerPackage 4616 + " is not installed on the current user"); 4617 } 4618 } 4619 DevicePolicyData policy = getUserData(userHandle); 4620 policy.mDelegatedCertInstallerPackage = installerPackage; 4621 saveSettingsLocked(userHandle); 4622 } 4623 } 4624 4625 @Override 4626 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 4627 int userHandle = UserHandle.getCallingUserId(); 4628 synchronized (this) { 4629 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4630 DevicePolicyData policy = getUserData(userHandle); 4631 return policy.mDelegatedCertInstallerPackage; 4632 } 4633 } 4634 4635 /** 4636 * @return {@code true} if the package is installed and set as always-on, {@code false} if it is 4637 * not installed and therefore not available. 4638 * 4639 * @throws SecurityException if the caller is not a profile or device owner. 4640 * @throws UnsupportedOperationException if the package does not support being set as always-on. 4641 */ 4642 @Override 4643 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage, boolean lockdown) 4644 throws SecurityException { 4645 synchronized (this) { 4646 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4647 } 4648 4649 final int userId = mInjector.userHandleGetCallingUserId(); 4650 final long token = mInjector.binderClearCallingIdentity(); 4651 try { 4652 if (vpnPackage != null && !isPackageInstalledForUser(vpnPackage, userId)) { 4653 return false; 4654 } 4655 ConnectivityManager connectivityManager = (ConnectivityManager) 4656 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4657 if (!connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage, lockdown)) { 4658 throw new UnsupportedOperationException(); 4659 } 4660 } finally { 4661 mInjector.binderRestoreCallingIdentity(token); 4662 } 4663 return true; 4664 } 4665 4666 @Override 4667 public String getAlwaysOnVpnPackage(ComponentName admin) 4668 throws SecurityException { 4669 synchronized (this) { 4670 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4671 } 4672 4673 final int userId = mInjector.userHandleGetCallingUserId(); 4674 final long token = mInjector.binderClearCallingIdentity(); 4675 try{ 4676 ConnectivityManager connectivityManager = (ConnectivityManager) 4677 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4678 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 4679 } finally { 4680 mInjector.binderRestoreCallingIdentity(token); 4681 } 4682 } 4683 4684 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 4685 if (wipeExtRequested) { 4686 StorageManager sm = (StorageManager) mContext.getSystemService( 4687 Context.STORAGE_SERVICE); 4688 sm.wipeAdoptableDisks(); 4689 } 4690 try { 4691 RecoverySystem.rebootWipeUserData(mContext, reason); 4692 } catch (IOException | SecurityException e) { 4693 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 4694 } 4695 } 4696 4697 @Override 4698 public void wipeData(int flags) { 4699 if (!mHasFeature) { 4700 return; 4701 } 4702 final int userHandle = mInjector.userHandleGetCallingUserId(); 4703 enforceFullCrossUsersPermission(userHandle); 4704 synchronized (this) { 4705 // This API can only be called by an active device admin, 4706 // so try to retrieve it to check that the caller is one. 4707 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 4708 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 4709 4710 final String source = admin.info.getComponent().flattenToShortString(); 4711 4712 long ident = mInjector.binderClearCallingIdentity(); 4713 try { 4714 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 4715 if (!isDeviceOwner(admin.info.getComponent(), userHandle)) { 4716 throw new SecurityException( 4717 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 4718 } 4719 PersistentDataBlockManager manager = (PersistentDataBlockManager) 4720 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 4721 if (manager != null) { 4722 manager.wipe(); 4723 } 4724 } 4725 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 4726 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 4727 "DevicePolicyManager.wipeData() from " + source); 4728 } finally { 4729 mInjector.binderRestoreCallingIdentity(ident); 4730 } 4731 } 4732 } 4733 4734 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 4735 if (userHandle == UserHandle.USER_SYSTEM) { 4736 wipeDataLocked(wipeExtRequested, reason); 4737 } else { 4738 mHandler.post(new Runnable() { 4739 @Override 4740 public void run() { 4741 try { 4742 IActivityManager am = mInjector.getIActivityManager(); 4743 if (am.getCurrentUser().id == userHandle) { 4744 am.switchUser(UserHandle.USER_SYSTEM); 4745 } 4746 4747 boolean isManagedProfile = isManagedProfile(userHandle); 4748 if (!mUserManager.removeUser(userHandle)) { 4749 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 4750 } else if (isManagedProfile) { 4751 sendWipeProfileNotification(); 4752 } 4753 } catch (RemoteException re) { 4754 // Shouldn't happen 4755 } 4756 } 4757 }); 4758 } 4759 } 4760 4761 private void sendWipeProfileNotification() { 4762 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 4763 Notification notification = new Notification.Builder(mContext) 4764 .setSmallIcon(android.R.drawable.stat_sys_warning) 4765 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 4766 .setContentText(contentText) 4767 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 4768 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 4769 .build(); 4770 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 4771 } 4772 4773 private void clearWipeProfileNotification() { 4774 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 4775 } 4776 4777 @Override 4778 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 4779 if (!mHasFeature) { 4780 return; 4781 } 4782 enforceFullCrossUsersPermission(userHandle); 4783 mContext.enforceCallingOrSelfPermission( 4784 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4785 4786 synchronized (this) { 4787 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 4788 if (admin == null) { 4789 result.sendResult(null); 4790 return; 4791 } 4792 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 4793 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4794 intent.setComponent(admin.info.getComponent()); 4795 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 4796 null, new BroadcastReceiver() { 4797 @Override 4798 public void onReceive(Context context, Intent intent) { 4799 result.sendResult(getResultExtras(false)); 4800 } 4801 }, null, Activity.RESULT_OK, null, null); 4802 } 4803 } 4804 4805 @Override 4806 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 4807 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 4808 if (!mHasFeature) { 4809 return; 4810 } 4811 enforceFullCrossUsersPermission(userHandle); 4812 4813 // Managed Profile password can only be changed when it has a separate challenge. 4814 if (!isSeparateProfileChallengeEnabled(userHandle)) { 4815 enforceNotManagedProfile(userHandle, "set the active password"); 4816 } 4817 4818 mContext.enforceCallingOrSelfPermission( 4819 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4820 validateQualityConstant(quality); 4821 4822 DevicePolicyData policy = getUserData(userHandle); 4823 4824 long ident = mInjector.binderClearCallingIdentity(); 4825 try { 4826 synchronized (this) { 4827 policy.mActivePasswordQuality = quality; 4828 policy.mActivePasswordLength = length; 4829 policy.mActivePasswordLetters = letters; 4830 policy.mActivePasswordLowerCase = lowercase; 4831 policy.mActivePasswordUpperCase = uppercase; 4832 policy.mActivePasswordNumeric = numbers; 4833 policy.mActivePasswordSymbols = symbols; 4834 policy.mActivePasswordNonLetter = nonletter; 4835 policy.mFailedPasswordAttempts = 0; 4836 saveSettingsLocked(userHandle); 4837 updatePasswordExpirationsLocked(userHandle); 4838 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 4839 4840 // Send a broadcast to each profile using this password as its primary unlock. 4841 sendAdminCommandForLockscreenPoliciesLocked( 4842 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 4843 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 4844 } 4845 removeCaApprovalsIfNeeded(userHandle); 4846 } finally { 4847 mInjector.binderRestoreCallingIdentity(ident); 4848 } 4849 } 4850 4851 /** 4852 * Called any time the device password is updated. Resets all password expiration clocks. 4853 */ 4854 private void updatePasswordExpirationsLocked(int userHandle) { 4855 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 4856 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4857 userHandle, /* parent */ false); 4858 final int N = admins.size(); 4859 for (int i = 0; i < N; i++) { 4860 ActiveAdmin admin = admins.get(i); 4861 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 4862 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 4863 long timeout = admin.passwordExpirationTimeout; 4864 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 4865 admin.passwordExpirationDate = expiration; 4866 } 4867 } 4868 for (int affectedUserId : affectedUserIds) { 4869 saveSettingsLocked(affectedUserId); 4870 } 4871 } 4872 4873 @Override 4874 public void reportFailedPasswordAttempt(int userHandle) { 4875 enforceFullCrossUsersPermission(userHandle); 4876 if (!isSeparateProfileChallengeEnabled(userHandle)) { 4877 enforceNotManagedProfile(userHandle, 4878 "report failed password attempt if separate profile challenge is not in place"); 4879 } 4880 mContext.enforceCallingOrSelfPermission( 4881 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4882 4883 final long ident = mInjector.binderClearCallingIdentity(); 4884 try { 4885 boolean wipeData = false; 4886 int identifier = 0; 4887 synchronized (this) { 4888 DevicePolicyData policy = getUserData(userHandle); 4889 policy.mFailedPasswordAttempts++; 4890 saveSettingsLocked(userHandle); 4891 if (mHasFeature) { 4892 ActiveAdmin strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4893 userHandle, /* parent */ false); 4894 int max = strictestAdmin != null 4895 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 4896 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 4897 // Wipe the user/profile associated with the policy that was violated. This 4898 // is not necessarily calling user: if the policy that fired was from a 4899 // managed profile rather than the main user profile, we wipe former only. 4900 wipeData = true; 4901 identifier = strictestAdmin.getUserHandle().getIdentifier(); 4902 } 4903 4904 sendAdminCommandForLockscreenPoliciesLocked( 4905 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 4906 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4907 } 4908 } 4909 if (wipeData) { 4910 // Call without holding lock. 4911 wipeDeviceOrUserLocked(false, identifier, 4912 "reportFailedPasswordAttempt()"); 4913 } 4914 } finally { 4915 mInjector.binderRestoreCallingIdentity(ident); 4916 } 4917 4918 if (mInjector.securityLogIsLoggingEnabled()) { 4919 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 4920 /*method strength*/ 1); 4921 } 4922 } 4923 4924 @Override 4925 public void reportSuccessfulPasswordAttempt(int userHandle) { 4926 enforceFullCrossUsersPermission(userHandle); 4927 mContext.enforceCallingOrSelfPermission( 4928 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4929 4930 synchronized (this) { 4931 DevicePolicyData policy = getUserData(userHandle); 4932 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 4933 long ident = mInjector.binderClearCallingIdentity(); 4934 try { 4935 policy.mFailedPasswordAttempts = 0; 4936 policy.mPasswordOwner = -1; 4937 saveSettingsLocked(userHandle); 4938 if (mHasFeature) { 4939 sendAdminCommandForLockscreenPoliciesLocked( 4940 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 4941 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4942 } 4943 } finally { 4944 mInjector.binderRestoreCallingIdentity(ident); 4945 } 4946 } 4947 } 4948 4949 if (mInjector.securityLogIsLoggingEnabled()) { 4950 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 4951 /*method strength*/ 1); 4952 } 4953 } 4954 4955 @Override 4956 public void reportFailedFingerprintAttempt(int userHandle) { 4957 enforceFullCrossUsersPermission(userHandle); 4958 mContext.enforceCallingOrSelfPermission( 4959 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4960 if (mInjector.securityLogIsLoggingEnabled()) { 4961 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 4962 /*method strength*/ 0); 4963 } 4964 } 4965 4966 @Override 4967 public void reportSuccessfulFingerprintAttempt(int userHandle) { 4968 enforceFullCrossUsersPermission(userHandle); 4969 mContext.enforceCallingOrSelfPermission( 4970 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4971 if (mInjector.securityLogIsLoggingEnabled()) { 4972 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 4973 /*method strength*/ 0); 4974 } 4975 } 4976 4977 @Override 4978 public void reportKeyguardDismissed(int userHandle) { 4979 enforceFullCrossUsersPermission(userHandle); 4980 mContext.enforceCallingOrSelfPermission( 4981 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4982 4983 if (mInjector.securityLogIsLoggingEnabled()) { 4984 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 4985 } 4986 } 4987 4988 @Override 4989 public void reportKeyguardSecured(int userHandle) { 4990 enforceFullCrossUsersPermission(userHandle); 4991 mContext.enforceCallingOrSelfPermission( 4992 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4993 4994 if (mInjector.securityLogIsLoggingEnabled()) { 4995 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 4996 } 4997 } 4998 4999 @Override 5000 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 5001 String exclusionList) { 5002 if (!mHasFeature) { 5003 return null; 5004 } 5005 synchronized(this) { 5006 Preconditions.checkNotNull(who, "ComponentName is null"); 5007 5008 // Only check if system user has set global proxy. We don't allow other users to set it. 5009 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5010 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5011 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 5012 5013 // Scan through active admins and find if anyone has already 5014 // set the global proxy. 5015 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 5016 for (ComponentName component : compSet) { 5017 ActiveAdmin ap = policy.mAdminMap.get(component); 5018 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 5019 // Another admin already sets the global proxy 5020 // Return it to the caller. 5021 return component; 5022 } 5023 } 5024 5025 // If the user is not system, don't set the global proxy. Fail silently. 5026 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 5027 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 5028 + UserHandle.getCallingUserId() + " is not permitted."); 5029 return null; 5030 } 5031 if (proxySpec == null) { 5032 admin.specifiesGlobalProxy = false; 5033 admin.globalProxySpec = null; 5034 admin.globalProxyExclusionList = null; 5035 } else { 5036 5037 admin.specifiesGlobalProxy = true; 5038 admin.globalProxySpec = proxySpec; 5039 admin.globalProxyExclusionList = exclusionList; 5040 } 5041 5042 // Reset the global proxy accordingly 5043 // Do this using system permissions, as apps cannot write to secure settings 5044 long origId = mInjector.binderClearCallingIdentity(); 5045 try { 5046 resetGlobalProxyLocked(policy); 5047 } finally { 5048 mInjector.binderRestoreCallingIdentity(origId); 5049 } 5050 return null; 5051 } 5052 } 5053 5054 @Override 5055 public ComponentName getGlobalProxyAdmin(int userHandle) { 5056 if (!mHasFeature) { 5057 return null; 5058 } 5059 enforceFullCrossUsersPermission(userHandle); 5060 synchronized(this) { 5061 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5062 // Scan through active admins and find if anyone has already 5063 // set the global proxy. 5064 final int N = policy.mAdminList.size(); 5065 for (int i = 0; i < N; i++) { 5066 ActiveAdmin ap = policy.mAdminList.get(i); 5067 if (ap.specifiesGlobalProxy) { 5068 // Device admin sets the global proxy 5069 // Return it to the caller. 5070 return ap.info.getComponent(); 5071 } 5072 } 5073 } 5074 // No device admin sets the global proxy. 5075 return null; 5076 } 5077 5078 @Override 5079 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 5080 synchronized (this) { 5081 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5082 } 5083 long token = mInjector.binderClearCallingIdentity(); 5084 try { 5085 ConnectivityManager connectivityManager = (ConnectivityManager) 5086 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5087 connectivityManager.setGlobalProxy(proxyInfo); 5088 } finally { 5089 mInjector.binderRestoreCallingIdentity(token); 5090 } 5091 } 5092 5093 private void resetGlobalProxyLocked(DevicePolicyData policy) { 5094 final int N = policy.mAdminList.size(); 5095 for (int i = 0; i < N; i++) { 5096 ActiveAdmin ap = policy.mAdminList.get(i); 5097 if (ap.specifiesGlobalProxy) { 5098 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 5099 return; 5100 } 5101 } 5102 // No device admins defining global proxies - reset global proxy settings to none 5103 saveGlobalProxyLocked(null, null); 5104 } 5105 5106 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 5107 if (exclusionList == null) { 5108 exclusionList = ""; 5109 } 5110 if (proxySpec == null) { 5111 proxySpec = ""; 5112 } 5113 // Remove white spaces 5114 proxySpec = proxySpec.trim(); 5115 String data[] = proxySpec.split(":"); 5116 int proxyPort = 8080; 5117 if (data.length > 1) { 5118 try { 5119 proxyPort = Integer.parseInt(data[1]); 5120 } catch (NumberFormatException e) {} 5121 } 5122 exclusionList = exclusionList.trim(); 5123 5124 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 5125 if (!proxyProperties.isValid()) { 5126 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 5127 return; 5128 } 5129 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 5130 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 5131 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 5132 exclusionList); 5133 } 5134 5135 /** 5136 * Set the storage encryption request for a single admin. Returns the new total request 5137 * status (for all admins). 5138 */ 5139 @Override 5140 public int setStorageEncryption(ComponentName who, boolean encrypt) { 5141 if (!mHasFeature) { 5142 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5143 } 5144 Preconditions.checkNotNull(who, "ComponentName is null"); 5145 final int userHandle = UserHandle.getCallingUserId(); 5146 synchronized (this) { 5147 // Check for permissions 5148 // Only system user can set storage encryption 5149 if (userHandle != UserHandle.USER_SYSTEM) { 5150 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 5151 + UserHandle.getCallingUserId() + " is not permitted."); 5152 return 0; 5153 } 5154 5155 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5156 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 5157 5158 // Quick exit: If the filesystem does not support encryption, we can exit early. 5159 if (!isEncryptionSupported()) { 5160 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5161 } 5162 5163 // (1) Record the value for the admin so it's sticky 5164 if (ap.encryptionRequested != encrypt) { 5165 ap.encryptionRequested = encrypt; 5166 saveSettingsLocked(userHandle); 5167 } 5168 5169 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5170 // (2) Compute "max" for all admins 5171 boolean newRequested = false; 5172 final int N = policy.mAdminList.size(); 5173 for (int i = 0; i < N; i++) { 5174 newRequested |= policy.mAdminList.get(i).encryptionRequested; 5175 } 5176 5177 // Notify OS of new request 5178 setEncryptionRequested(newRequested); 5179 5180 // Return the new global request status 5181 return newRequested 5182 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 5183 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5184 } 5185 } 5186 5187 /** 5188 * Get the current storage encryption request status for a given admin, or aggregate of all 5189 * active admins. 5190 */ 5191 @Override 5192 public boolean getStorageEncryption(ComponentName who, int userHandle) { 5193 if (!mHasFeature) { 5194 return false; 5195 } 5196 enforceFullCrossUsersPermission(userHandle); 5197 synchronized (this) { 5198 // Check for permissions if a particular caller is specified 5199 if (who != null) { 5200 // When checking for a single caller, status is based on caller's request 5201 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 5202 return ap != null ? ap.encryptionRequested : false; 5203 } 5204 5205 // If no particular caller is specified, return the aggregate set of requests. 5206 // This is short circuited by returning true on the first hit. 5207 DevicePolicyData policy = getUserData(userHandle); 5208 final int N = policy.mAdminList.size(); 5209 for (int i = 0; i < N; i++) { 5210 if (policy.mAdminList.get(i).encryptionRequested) { 5211 return true; 5212 } 5213 } 5214 return false; 5215 } 5216 } 5217 5218 /** 5219 * Get the current encryption status of the device. 5220 */ 5221 @Override 5222 public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) { 5223 if (!mHasFeature) { 5224 // Ok to return current status. 5225 } 5226 enforceFullCrossUsersPermission(userHandle); 5227 5228 // It's not critical here, but let's make sure the package name is correct, in case 5229 // we start using it for different purposes. 5230 ensureCallerPackage(callerPackage); 5231 5232 final ApplicationInfo ai; 5233 try { 5234 ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle); 5235 } catch (RemoteException e) { 5236 throw new SecurityException(e); 5237 } 5238 5239 boolean legacyApp = false; 5240 if (ai.targetSdkVersion <= Build.VERSION_CODES.M) { 5241 legacyApp = true; 5242 } 5243 5244 final int rawStatus = getEncryptionStatus(); 5245 if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) { 5246 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5247 } 5248 return rawStatus; 5249 } 5250 5251 /** 5252 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 5253 */ 5254 private boolean isEncryptionSupported() { 5255 // Note, this can be implemented as 5256 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5257 // But is provided as a separate internal method if there's a faster way to do a 5258 // simple check for supported-or-not. 5259 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5260 } 5261 5262 /** 5263 * Hook to low-levels: Reporting the current status of encryption. 5264 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 5265 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 5266 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, 5267 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or 5268 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 5269 */ 5270 private int getEncryptionStatus() { 5271 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 5272 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER; 5273 } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) { 5274 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5275 } else if (mInjector.storageManagerIsEncrypted()) { 5276 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 5277 } else if (mInjector.storageManagerIsEncryptable()) { 5278 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5279 } else { 5280 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5281 } 5282 } 5283 5284 /** 5285 * Hook to low-levels: If needed, record the new admin setting for encryption. 5286 */ 5287 private void setEncryptionRequested(boolean encrypt) { 5288 } 5289 5290 /** 5291 * Set whether the screen capture is disabled for the user managed by the specified admin. 5292 */ 5293 @Override 5294 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 5295 if (!mHasFeature) { 5296 return; 5297 } 5298 Preconditions.checkNotNull(who, "ComponentName is null"); 5299 final int userHandle = UserHandle.getCallingUserId(); 5300 synchronized (this) { 5301 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5302 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5303 if (ap.disableScreenCapture != disabled) { 5304 ap.disableScreenCapture = disabled; 5305 saveSettingsLocked(userHandle); 5306 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 5307 } 5308 } 5309 } 5310 5311 /** 5312 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 5313 * active admin (if given admin is null). 5314 */ 5315 @Override 5316 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 5317 if (!mHasFeature) { 5318 return false; 5319 } 5320 synchronized (this) { 5321 if (who != null) { 5322 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5323 return (admin != null) ? admin.disableScreenCapture : false; 5324 } 5325 5326 DevicePolicyData policy = getUserData(userHandle); 5327 final int N = policy.mAdminList.size(); 5328 for (int i = 0; i < N; i++) { 5329 ActiveAdmin admin = policy.mAdminList.get(i); 5330 if (admin.disableScreenCapture) { 5331 return true; 5332 } 5333 } 5334 return false; 5335 } 5336 } 5337 5338 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 5339 final boolean disabled) { 5340 mHandler.post(new Runnable() { 5341 @Override 5342 public void run() { 5343 try { 5344 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 5345 } catch (RemoteException e) { 5346 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 5347 } 5348 } 5349 }); 5350 } 5351 5352 /** 5353 * Set whether auto time is required by the specified admin (must be device owner). 5354 */ 5355 @Override 5356 public void setAutoTimeRequired(ComponentName who, boolean required) { 5357 if (!mHasFeature) { 5358 return; 5359 } 5360 Preconditions.checkNotNull(who, "ComponentName is null"); 5361 final int userHandle = UserHandle.getCallingUserId(); 5362 synchronized (this) { 5363 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5364 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5365 if (admin.requireAutoTime != required) { 5366 admin.requireAutoTime = required; 5367 saveSettingsLocked(userHandle); 5368 } 5369 } 5370 5371 // Turn AUTO_TIME on in settings if it is required 5372 if (required) { 5373 long ident = mInjector.binderClearCallingIdentity(); 5374 try { 5375 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 5376 } finally { 5377 mInjector.binderRestoreCallingIdentity(ident); 5378 } 5379 } 5380 } 5381 5382 /** 5383 * Returns whether or not auto time is required by the device owner. 5384 */ 5385 @Override 5386 public boolean getAutoTimeRequired() { 5387 if (!mHasFeature) { 5388 return false; 5389 } 5390 synchronized (this) { 5391 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5392 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 5393 } 5394 } 5395 5396 @Override 5397 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 5398 if (!mHasFeature) { 5399 return; 5400 } 5401 Preconditions.checkNotNull(who, "ComponentName is null"); 5402 // Allow setting this policy to true only if there is a split system user. 5403 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 5404 throw new UnsupportedOperationException( 5405 "Cannot force ephemeral users on systems without split system user."); 5406 } 5407 boolean removeAllUsers = false; 5408 synchronized (this) { 5409 final ActiveAdmin deviceOwner = 5410 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5411 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 5412 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 5413 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 5414 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 5415 removeAllUsers = forceEphemeralUsers; 5416 } 5417 } 5418 if (removeAllUsers) { 5419 long identitity = mInjector.binderClearCallingIdentity(); 5420 try { 5421 mUserManagerInternal.removeAllUsers(); 5422 } finally { 5423 mInjector.binderRestoreCallingIdentity(identitity); 5424 } 5425 } 5426 } 5427 5428 @Override 5429 public boolean getForceEphemeralUsers(ComponentName who) { 5430 if (!mHasFeature) { 5431 return false; 5432 } 5433 Preconditions.checkNotNull(who, "ComponentName is null"); 5434 synchronized (this) { 5435 final ActiveAdmin deviceOwner = 5436 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5437 return deviceOwner.forceEphemeralUsers; 5438 } 5439 } 5440 5441 private boolean isDeviceOwnerManagedSingleUserDevice() { 5442 synchronized (this) { 5443 if (!mOwners.hasDeviceOwner()) { 5444 return false; 5445 } 5446 } 5447 final long callingIdentity = mInjector.binderClearCallingIdentity(); 5448 try { 5449 if (mInjector.userManagerIsSplitSystemUser()) { 5450 // In split system user mode, only allow the case where the device owner is managing 5451 // the only non-system user of the device 5452 return (mUserManager.getUserCount() == 2 5453 && mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM); 5454 } else { 5455 return mUserManager.getUserCount() == 1; 5456 } 5457 } finally { 5458 mInjector.binderRestoreCallingIdentity(callingIdentity); 5459 } 5460 } 5461 5462 private void ensureDeviceOwnerManagingSingleUser(ComponentName who) throws SecurityException { 5463 synchronized (this) { 5464 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5465 } 5466 if (!isDeviceOwnerManagedSingleUserDevice()) { 5467 throw new SecurityException( 5468 "There should only be one user, managed by Device Owner"); 5469 } 5470 } 5471 5472 @Override 5473 public boolean requestBugreport(ComponentName who) { 5474 if (!mHasFeature) { 5475 return false; 5476 } 5477 Preconditions.checkNotNull(who, "ComponentName is null"); 5478 ensureDeviceOwnerManagingSingleUser(who); 5479 5480 if (mRemoteBugreportServiceIsActive.get() 5481 || (getDeviceOwnerRemoteBugreportUri() != null)) { 5482 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 5483 return false; 5484 } 5485 5486 final long callingIdentity = mInjector.binderClearCallingIdentity(); 5487 try { 5488 ActivityManagerNative.getDefault().requestBugReport( 5489 ActivityManager.BUGREPORT_OPTION_REMOTE); 5490 5491 mRemoteBugreportServiceIsActive.set(true); 5492 mRemoteBugreportSharingAccepted.set(false); 5493 registerRemoteBugreportReceivers(); 5494 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5495 RemoteBugreportUtils.buildNotification(mContext, 5496 DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL); 5497 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 5498 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 5499 return true; 5500 } catch (RemoteException re) { 5501 // should never happen 5502 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 5503 return false; 5504 } finally { 5505 mInjector.binderRestoreCallingIdentity(callingIdentity); 5506 } 5507 } 5508 5509 synchronized void sendDeviceOwnerCommand(String action, Bundle extras) { 5510 Intent intent = new Intent(action); 5511 intent.setComponent(mOwners.getDeviceOwnerComponent()); 5512 if (extras != null) { 5513 intent.putExtras(extras); 5514 } 5515 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 5516 } 5517 5518 private synchronized String getDeviceOwnerRemoteBugreportUri() { 5519 return mOwners.getDeviceOwnerRemoteBugreportUri(); 5520 } 5521 5522 private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 5523 String bugreportHash) { 5524 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 5525 } 5526 5527 private void registerRemoteBugreportReceivers() { 5528 try { 5529 IntentFilter filterFinished = new IntentFilter( 5530 DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH, 5531 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 5532 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 5533 } catch (IntentFilter.MalformedMimeTypeException e) { 5534 // should never happen, as setting a constant 5535 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 5536 } 5537 IntentFilter filterConsent = new IntentFilter(); 5538 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 5539 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 5540 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 5541 } 5542 5543 private void onBugreportFinished(Intent intent) { 5544 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 5545 mRemoteBugreportServiceIsActive.set(false); 5546 Uri bugreportUri = intent.getData(); 5547 String bugreportUriString = null; 5548 if (bugreportUri != null) { 5549 bugreportUriString = bugreportUri.toString(); 5550 } 5551 String bugreportHash = intent.getStringExtra( 5552 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH); 5553 if (mRemoteBugreportSharingAccepted.get()) { 5554 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 5555 mInjector.getNotificationManager().cancel(LOG_TAG, 5556 RemoteBugreportUtils.NOTIFICATION_ID); 5557 } else { 5558 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 5559 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5560 RemoteBugreportUtils.buildNotification(mContext, 5561 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 5562 UserHandle.ALL); 5563 } 5564 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5565 } 5566 5567 private void onBugreportFailed() { 5568 mRemoteBugreportServiceIsActive.set(false); 5569 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 5570 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 5571 mRemoteBugreportSharingAccepted.set(false); 5572 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5573 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 5574 Bundle extras = new Bundle(); 5575 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 5576 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 5577 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 5578 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 5579 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5580 } 5581 5582 private void onBugreportSharingAccepted() { 5583 mRemoteBugreportSharingAccepted.set(true); 5584 String bugreportUriString = null; 5585 String bugreportHash = null; 5586 synchronized (this) { 5587 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 5588 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 5589 } 5590 if (bugreportUriString != null) { 5591 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 5592 } else if (mRemoteBugreportServiceIsActive.get()) { 5593 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5594 RemoteBugreportUtils.buildNotification(mContext, 5595 DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED), 5596 UserHandle.ALL); 5597 } 5598 } 5599 5600 private void onBugreportSharingDeclined() { 5601 if (mRemoteBugreportServiceIsActive.get()) { 5602 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 5603 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 5604 mRemoteBugreportServiceIsActive.set(false); 5605 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 5606 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5607 } 5608 mRemoteBugreportSharingAccepted.set(false); 5609 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5610 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 5611 } 5612 5613 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 5614 String bugreportHash) { 5615 ParcelFileDescriptor pfd = null; 5616 try { 5617 if (bugreportUriString == null) { 5618 throw new FileNotFoundException(); 5619 } 5620 Uri bugreportUri = Uri.parse(bugreportUriString); 5621 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 5622 5623 synchronized (this) { 5624 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 5625 intent.setComponent(mOwners.getDeviceOwnerComponent()); 5626 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 5627 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 5628 mContext.grantUriPermission(mOwners.getDeviceOwnerComponent().getPackageName(), 5629 bugreportUri, Intent.FLAG_GRANT_READ_URI_PERMISSION); 5630 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 5631 } 5632 } catch (FileNotFoundException e) { 5633 Bundle extras = new Bundle(); 5634 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 5635 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 5636 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 5637 } finally { 5638 try { 5639 if (pfd != null) { 5640 pfd.close(); 5641 } 5642 } catch (IOException ex) { 5643 // Ignore 5644 } 5645 mRemoteBugreportSharingAccepted.set(false); 5646 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5647 } 5648 } 5649 5650 /** 5651 * Disables all device cameras according to the specified admin. 5652 */ 5653 @Override 5654 public void setCameraDisabled(ComponentName who, boolean disabled) { 5655 if (!mHasFeature) { 5656 return; 5657 } 5658 Preconditions.checkNotNull(who, "ComponentName is null"); 5659 final int userHandle = mInjector.userHandleGetCallingUserId(); 5660 synchronized (this) { 5661 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5662 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 5663 if (ap.disableCamera != disabled) { 5664 ap.disableCamera = disabled; 5665 saveSettingsLocked(userHandle); 5666 } 5667 } 5668 // Tell the user manager that the restrictions have changed. 5669 pushUserRestrictions(userHandle); 5670 } 5671 5672 /** 5673 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 5674 * active admins. 5675 */ 5676 @Override 5677 public boolean getCameraDisabled(ComponentName who, int userHandle) { 5678 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 5679 } 5680 5681 private boolean getCameraDisabled(ComponentName who, int userHandle, 5682 boolean mergeDeviceOwnerRestriction) { 5683 if (!mHasFeature) { 5684 return false; 5685 } 5686 synchronized (this) { 5687 if (who != null) { 5688 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5689 return (admin != null) ? admin.disableCamera : false; 5690 } 5691 // First, see if DO has set it. If so, it's device-wide. 5692 if (mergeDeviceOwnerRestriction) { 5693 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5694 if (deviceOwner != null && deviceOwner.disableCamera) { 5695 return true; 5696 } 5697 } 5698 5699 // Then check each device admin on the user. 5700 DevicePolicyData policy = getUserData(userHandle); 5701 // Determine whether or not the device camera is disabled for any active admins. 5702 final int N = policy.mAdminList.size(); 5703 for (int i = 0; i < N; i++) { 5704 ActiveAdmin admin = policy.mAdminList.get(i); 5705 if (admin.disableCamera) { 5706 return true; 5707 } 5708 } 5709 return false; 5710 } 5711 } 5712 5713 @Override 5714 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 5715 if (!mHasFeature) { 5716 return; 5717 } 5718 Preconditions.checkNotNull(who, "ComponentName is null"); 5719 final int userHandle = mInjector.userHandleGetCallingUserId(); 5720 if (isManagedProfile(userHandle)) { 5721 if (parent) { 5722 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 5723 } else { 5724 which = which & PROFILE_KEYGUARD_FEATURES; 5725 } 5726 } 5727 synchronized (this) { 5728 ActiveAdmin ap = getActiveAdminForCallerLocked( 5729 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 5730 if (ap.disabledKeyguardFeatures != which) { 5731 ap.disabledKeyguardFeatures = which; 5732 saveSettingsLocked(userHandle); 5733 } 5734 } 5735 } 5736 5737 /** 5738 * Gets the disabled state for features in keyguard for the given admin, 5739 * or the aggregate of all active admins if who is null. 5740 */ 5741 @Override 5742 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 5743 if (!mHasFeature) { 5744 return 0; 5745 } 5746 enforceFullCrossUsersPermission(userHandle); 5747 final long ident = mInjector.binderClearCallingIdentity(); 5748 try { 5749 synchronized (this) { 5750 if (who != null) { 5751 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 5752 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 5753 } 5754 5755 final List<ActiveAdmin> admins; 5756 if (!parent && isManagedProfile(userHandle)) { 5757 // If we are being asked about a managed profile, just return keyguard features 5758 // disabled by admins in the profile. 5759 admins = getUserDataUnchecked(userHandle).mAdminList; 5760 } else { 5761 // Otherwise return those set by admins in the user and its profiles. 5762 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 5763 } 5764 5765 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 5766 final int N = admins.size(); 5767 for (int i = 0; i < N; i++) { 5768 ActiveAdmin admin = admins.get(i); 5769 int userId = admin.getUserHandle().getIdentifier(); 5770 boolean isRequestedUser = !parent && (userId == userHandle); 5771 if (isRequestedUser || !isManagedProfile(userId)) { 5772 // If we are being asked explicitly about this user 5773 // return all disabled features even if its a managed profile. 5774 which |= admin.disabledKeyguardFeatures; 5775 } else { 5776 // Otherwise a managed profile is only allowed to disable 5777 // some features on the parent user. 5778 which |= (admin.disabledKeyguardFeatures 5779 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 5780 } 5781 } 5782 return which; 5783 } 5784 } finally { 5785 mInjector.binderRestoreCallingIdentity(ident); 5786 } 5787 } 5788 5789 @Override 5790 public void setKeepUninstalledPackages(ComponentName who, List<String> packageList) { 5791 if (!mHasFeature) { 5792 return; 5793 } 5794 Preconditions.checkNotNull(who, "ComponentName is null"); 5795 Preconditions.checkNotNull(packageList, "packageList is null"); 5796 final int userHandle = UserHandle.getCallingUserId(); 5797 synchronized (this) { 5798 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5799 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5800 admin.keepUninstalledPackages = packageList; 5801 saveSettingsLocked(userHandle); 5802 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 5803 } 5804 } 5805 5806 @Override 5807 public List<String> getKeepUninstalledPackages(ComponentName who) { 5808 Preconditions.checkNotNull(who, "ComponentName is null"); 5809 if (!mHasFeature) { 5810 return null; 5811 } 5812 // TODO In split system user mode, allow apps on user 0 to query the list 5813 synchronized (this) { 5814 // Check if this is the device owner who is calling 5815 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5816 return getKeepUninstalledPackagesLocked(); 5817 } 5818 } 5819 5820 private List<String> getKeepUninstalledPackagesLocked() { 5821 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5822 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 5823 } 5824 5825 @Override 5826 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 5827 if (!mHasFeature) { 5828 return false; 5829 } 5830 if (admin == null 5831 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 5832 throw new IllegalArgumentException("Invalid component " + admin 5833 + " for device owner"); 5834 } 5835 synchronized (this) { 5836 enforceCanSetDeviceOwnerLocked(admin, userId); 5837 if (getActiveAdminUncheckedLocked(admin, userId) == null 5838 || getUserData(userId).mRemovingAdmins.contains(admin)) { 5839 throw new IllegalArgumentException("Not active admin: " + admin); 5840 } 5841 5842 // Shutting down backup manager service permanently. 5843 long ident = mInjector.binderClearCallingIdentity(); 5844 try { 5845 if (mInjector.getIBackupManager() != null) { 5846 mInjector.getIBackupManager() 5847 .setBackupServiceActive(UserHandle.USER_SYSTEM, false); 5848 } 5849 } catch (RemoteException e) { 5850 throw new IllegalStateException("Failed deactivating backup service.", e); 5851 } finally { 5852 mInjector.binderRestoreCallingIdentity(ident); 5853 } 5854 5855 mOwners.setDeviceOwner(admin, ownerName, userId); 5856 mOwners.writeDeviceOwner(); 5857 updateDeviceOwnerLocked(); 5858 setDeviceOwnerSystemPropertyLocked(); 5859 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 5860 5861 ident = mInjector.binderClearCallingIdentity(); 5862 try { 5863 // TODO Send to system too? 5864 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 5865 } finally { 5866 mInjector.binderRestoreCallingIdentity(ident); 5867 } 5868 Slog.i(LOG_TAG, "Device owner set: " + admin + " on user " + userId); 5869 return true; 5870 } 5871 } 5872 5873 public boolean isDeviceOwner(ComponentName who, int userId) { 5874 synchronized (this) { 5875 return mOwners.hasDeviceOwner() 5876 && mOwners.getDeviceOwnerUserId() == userId 5877 && mOwners.getDeviceOwnerComponent().equals(who); 5878 } 5879 } 5880 5881 public boolean isProfileOwner(ComponentName who, int userId) { 5882 final ComponentName profileOwner = getProfileOwner(userId); 5883 return who != null && who.equals(profileOwner); 5884 } 5885 5886 @Override 5887 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 5888 if (!mHasFeature) { 5889 return null; 5890 } 5891 if (!callingUserOnly) { 5892 enforceManageUsers(); 5893 } 5894 synchronized (this) { 5895 if (!mOwners.hasDeviceOwner()) { 5896 return null; 5897 } 5898 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 5899 mOwners.getDeviceOwnerUserId()) { 5900 return null; 5901 } 5902 return mOwners.getDeviceOwnerComponent(); 5903 } 5904 } 5905 5906 @Override 5907 public int getDeviceOwnerUserId() { 5908 if (!mHasFeature) { 5909 return UserHandle.USER_NULL; 5910 } 5911 enforceManageUsers(); 5912 synchronized (this) { 5913 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 5914 } 5915 } 5916 5917 /** 5918 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 5919 * MANAGE_USERS. 5920 */ 5921 @Override 5922 public String getDeviceOwnerName() { 5923 if (!mHasFeature) { 5924 return null; 5925 } 5926 enforceManageUsers(); 5927 synchronized (this) { 5928 if (!mOwners.hasDeviceOwner()) { 5929 return null; 5930 } 5931 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 5932 // Should setDeviceOwner/ProfileOwner still take a name? 5933 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 5934 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 5935 } 5936 } 5937 5938 // Returns the active device owner or null if there is no device owner. 5939 @VisibleForTesting 5940 ActiveAdmin getDeviceOwnerAdminLocked() { 5941 ComponentName component = mOwners.getDeviceOwnerComponent(); 5942 if (component == null) { 5943 return null; 5944 } 5945 5946 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 5947 final int n = policy.mAdminList.size(); 5948 for (int i = 0; i < n; i++) { 5949 ActiveAdmin admin = policy.mAdminList.get(i); 5950 if (component.equals(admin.info.getComponent())) { 5951 return admin; 5952 } 5953 } 5954 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 5955 return null; 5956 } 5957 5958 @Override 5959 public void clearDeviceOwner(String packageName) { 5960 Preconditions.checkNotNull(packageName, "packageName is null"); 5961 final int callingUid = mInjector.binderGetCallingUid(); 5962 try { 5963 int uid = mContext.getPackageManager().getPackageUidAsUser(packageName, 5964 UserHandle.getUserId(callingUid)); 5965 if (uid != callingUid) { 5966 throw new SecurityException("Invalid packageName"); 5967 } 5968 } catch (NameNotFoundException e) { 5969 throw new SecurityException(e); 5970 } 5971 synchronized (this) { 5972 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 5973 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 5974 if (!mOwners.hasDeviceOwner() 5975 || !deviceOwnerComponent.getPackageName().equals(packageName) 5976 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 5977 throw new SecurityException( 5978 "clearDeviceOwner can only be called by the device owner"); 5979 } 5980 enforceUserUnlocked(deviceOwnerUserId); 5981 5982 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 5983 long ident = mInjector.binderClearCallingIdentity(); 5984 try { 5985 clearDeviceOwnerLocked(admin, deviceOwnerUserId); 5986 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 5987 } finally { 5988 mInjector.binderRestoreCallingIdentity(ident); 5989 } 5990 Slog.i(LOG_TAG, "Device owner removed: " + deviceOwnerComponent); 5991 } 5992 } 5993 5994 private void clearDeviceOwnerLocked(ActiveAdmin admin, int userId) { 5995 if (admin != null) { 5996 admin.disableCamera = false; 5997 admin.userRestrictions = null; 5998 admin.forceEphemeralUsers = false; 5999 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 6000 } 6001 clearUserPoliciesLocked(userId); 6002 6003 mOwners.clearDeviceOwner(); 6004 mOwners.writeDeviceOwner(); 6005 updateDeviceOwnerLocked(); 6006 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 6007 try { 6008 if (mInjector.getIBackupManager() != null) { 6009 // Reactivate backup service. 6010 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 6011 } 6012 } catch (RemoteException e) { 6013 throw new IllegalStateException("Failed reactivating backup service.", e); 6014 } 6015 } 6016 6017 @Override 6018 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 6019 if (!mHasFeature) { 6020 return false; 6021 } 6022 if (who == null 6023 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 6024 throw new IllegalArgumentException("Component " + who 6025 + " not installed for userId:" + userHandle); 6026 } 6027 synchronized (this) { 6028 enforceCanSetProfileOwnerLocked(who, userHandle); 6029 6030 if (getActiveAdminUncheckedLocked(who, userHandle) == null 6031 || getUserData(userHandle).mRemovingAdmins.contains(who)) { 6032 throw new IllegalArgumentException("Not active admin: " + who); 6033 } 6034 6035 mOwners.setProfileOwner(who, ownerName, userHandle); 6036 mOwners.writeProfileOwner(userHandle); 6037 Slog.i(LOG_TAG, "Profile owner set: " + who + " on user " + userHandle); 6038 return true; 6039 } 6040 } 6041 6042 @Override 6043 public void clearProfileOwner(ComponentName who) { 6044 if (!mHasFeature) { 6045 return; 6046 } 6047 final UserHandle callingUser = mInjector.binderGetCallingUserHandle(); 6048 final int userId = callingUser.getIdentifier(); 6049 enforceNotManagedProfile(userId, "clear profile owner"); 6050 enforceUserUnlocked(userId); 6051 // Check if this is the profile owner who is calling 6052 final ActiveAdmin admin = 6053 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6054 synchronized (this) { 6055 final long ident = mInjector.binderClearCallingIdentity(); 6056 try { 6057 clearProfileOwnerLocked(admin, userId); 6058 removeActiveAdminLocked(who, userId); 6059 } finally { 6060 mInjector.binderRestoreCallingIdentity(ident); 6061 } 6062 Slog.i(LOG_TAG, "Profile owner " + who + " removed from user " + userId); 6063 } 6064 } 6065 6066 public void clearProfileOwnerLocked(ActiveAdmin admin, int userId) { 6067 if (admin != null) { 6068 admin.disableCamera = false; 6069 admin.userRestrictions = null; 6070 } 6071 clearUserPoliciesLocked(userId); 6072 mOwners.removeProfileOwner(userId); 6073 mOwners.writeProfileOwner(userId); 6074 } 6075 6076 @Override 6077 public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) { 6078 Preconditions.checkNotNull(who, "ComponentName is null"); 6079 if (!mHasFeature) { 6080 return; 6081 } 6082 6083 synchronized (this) { 6084 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6085 long token = mInjector.binderClearCallingIdentity(); 6086 try { 6087 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null); 6088 } finally { 6089 mInjector.binderRestoreCallingIdentity(token); 6090 } 6091 } 6092 } 6093 6094 @Override 6095 public CharSequence getDeviceOwnerLockScreenInfo() { 6096 return mLockPatternUtils.getDeviceOwnerInfo(); 6097 } 6098 6099 private void clearUserPoliciesLocked(int userId) { 6100 // Reset some of the user-specific policies 6101 DevicePolicyData policy = getUserData(userId); 6102 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 6103 policy.mDelegatedCertInstallerPackage = null; 6104 policy.mApplicationRestrictionsManagingPackage = null; 6105 policy.mStatusBarDisabled = false; 6106 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 6107 saveSettingsLocked(userId); 6108 6109 try { 6110 mIPackageManager.updatePermissionFlagsForAllApps( 6111 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6112 0 /* flagValues */, userId); 6113 pushUserRestrictions(userId); 6114 } catch (RemoteException re) { 6115 // Shouldn't happen. 6116 } 6117 } 6118 6119 @Override 6120 public boolean hasUserSetupCompleted() { 6121 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 6122 } 6123 6124 private boolean hasUserSetupCompleted(int userHandle) { 6125 if (!mHasFeature) { 6126 return true; 6127 } 6128 return getUserData(userHandle).mUserSetupComplete; 6129 } 6130 6131 @Override 6132 public int getUserProvisioningState() { 6133 if (!mHasFeature) { 6134 return DevicePolicyManager.STATE_USER_UNMANAGED; 6135 } 6136 int userHandle = mInjector.userHandleGetCallingUserId(); 6137 return getUserProvisioningState(userHandle); 6138 } 6139 6140 private int getUserProvisioningState(int userHandle) { 6141 return getUserData(userHandle).mUserProvisioningState; 6142 } 6143 6144 @Override 6145 public void setUserProvisioningState(int newState, int userHandle) { 6146 if (!mHasFeature) { 6147 return; 6148 } 6149 6150 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 6151 && getManagedUserId(userHandle) == -1) { 6152 // No managed device, user or profile, so setting provisioning state makes no sense. 6153 throw new IllegalStateException("Not allowed to change provisioning state unless a " 6154 + "device or profile owner is set."); 6155 } 6156 6157 synchronized (this) { 6158 boolean transitionCheckNeeded = true; 6159 6160 // Calling identity/permission checks. 6161 final int callingUid = mInjector.binderGetCallingUid(); 6162 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 6163 // ADB shell can only move directly from un-managed to finalized as part of directly 6164 // setting profile-owner or device-owner. 6165 if (getUserProvisioningState(userHandle) != 6166 DevicePolicyManager.STATE_USER_UNMANAGED 6167 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6168 throw new IllegalStateException("Not allowed to change provisioning state " 6169 + "unless current provisioning state is unmanaged, and new state is " 6170 + "finalized."); 6171 } 6172 transitionCheckNeeded = false; 6173 } else { 6174 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 6175 enforceCanManageProfileAndDeviceOwners(); 6176 } 6177 6178 final DevicePolicyData policyData = getUserData(userHandle); 6179 if (transitionCheckNeeded) { 6180 // Optional state transition check for non-ADB case. 6181 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 6182 } 6183 policyData.mUserProvisioningState = newState; 6184 saveSettingsLocked(userHandle); 6185 } 6186 } 6187 6188 private void checkUserProvisioningStateTransition(int currentState, int newState) { 6189 // Valid transitions for normal use-cases. 6190 switch (currentState) { 6191 case DevicePolicyManager.STATE_USER_UNMANAGED: 6192 // Can move to any state from unmanaged (except itself as an edge case).. 6193 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 6194 return; 6195 } 6196 break; 6197 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 6198 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 6199 // Can only move to finalized from these states. 6200 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6201 return; 6202 } 6203 break; 6204 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 6205 // Current user has a managed-profile, but current user is not managed, so 6206 // rather than moving to finalized state, go back to unmanaged once 6207 // profile provisioning is complete. 6208 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 6209 return; 6210 } 6211 break; 6212 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 6213 // Cannot transition out of finalized. 6214 break; 6215 } 6216 6217 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 6218 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 6219 + "from state [" + currentState + "]"); 6220 } 6221 6222 @Override 6223 public void setProfileEnabled(ComponentName who) { 6224 if (!mHasFeature) { 6225 return; 6226 } 6227 Preconditions.checkNotNull(who, "ComponentName is null"); 6228 synchronized (this) { 6229 // Check if this is the profile owner who is calling 6230 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6231 final int userId = UserHandle.getCallingUserId(); 6232 enforceManagedProfile(userId, "enable the profile"); 6233 6234 long id = mInjector.binderClearCallingIdentity(); 6235 try { 6236 mUserManager.setUserEnabled(userId); 6237 UserInfo parent = mUserManager.getProfileParent(userId); 6238 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 6239 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 6240 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 6241 Intent.FLAG_RECEIVER_FOREGROUND); 6242 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 6243 } finally { 6244 mInjector.binderRestoreCallingIdentity(id); 6245 } 6246 } 6247 } 6248 6249 @Override 6250 public void setProfileName(ComponentName who, String profileName) { 6251 Preconditions.checkNotNull(who, "ComponentName is null"); 6252 int userId = UserHandle.getCallingUserId(); 6253 // Check if this is the profile owner (includes device owner). 6254 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6255 6256 long id = mInjector.binderClearCallingIdentity(); 6257 try { 6258 mUserManager.setUserName(userId, profileName); 6259 } finally { 6260 mInjector.binderRestoreCallingIdentity(id); 6261 } 6262 } 6263 6264 @Override 6265 public ComponentName getProfileOwner(int userHandle) { 6266 if (!mHasFeature) { 6267 return null; 6268 } 6269 6270 synchronized (this) { 6271 return mOwners.getProfileOwnerComponent(userHandle); 6272 } 6273 } 6274 6275 // Returns the active profile owner for this user or null if the current user has no 6276 // profile owner. 6277 @VisibleForTesting 6278 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 6279 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 6280 if (profileOwner == null) { 6281 return null; 6282 } 6283 DevicePolicyData policy = getUserData(userHandle); 6284 final int n = policy.mAdminList.size(); 6285 for (int i = 0; i < n; i++) { 6286 ActiveAdmin admin = policy.mAdminList.get(i); 6287 if (profileOwner.equals(admin.info.getComponent())) { 6288 return admin; 6289 } 6290 } 6291 return null; 6292 } 6293 6294 @Override 6295 public String getProfileOwnerName(int userHandle) { 6296 if (!mHasFeature) { 6297 return null; 6298 } 6299 enforceManageUsers(); 6300 ComponentName profileOwner = getProfileOwner(userHandle); 6301 if (profileOwner == null) { 6302 return null; 6303 } 6304 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 6305 } 6306 6307 /** 6308 * Canonical name for a given package. 6309 */ 6310 private String getApplicationLabel(String packageName, int userHandle) { 6311 long token = mInjector.binderClearCallingIdentity(); 6312 try { 6313 final Context userContext; 6314 try { 6315 UserHandle handle = new UserHandle(userHandle); 6316 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 6317 } catch (PackageManager.NameNotFoundException nnfe) { 6318 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 6319 return null; 6320 } 6321 ApplicationInfo appInfo = userContext.getApplicationInfo(); 6322 CharSequence result = null; 6323 if (appInfo != null) { 6324 PackageManager pm = userContext.getPackageManager(); 6325 result = pm.getApplicationLabel(appInfo); 6326 } 6327 return result != null ? result.toString() : null; 6328 } finally { 6329 mInjector.binderRestoreCallingIdentity(token); 6330 } 6331 } 6332 6333 /** 6334 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 6335 * permission. 6336 * The profile owner can only be set before the user setup phase has completed, 6337 * except for: 6338 * - SYSTEM_UID 6339 * - adb if there are no accounts. (But see {@link #hasIncompatibleAccountsLocked}) 6340 */ 6341 private void enforceCanSetProfileOwnerLocked(@Nullable ComponentName owner, int userHandle) { 6342 UserInfo info = getUserInfo(userHandle); 6343 if (info == null) { 6344 // User doesn't exist. 6345 throw new IllegalArgumentException( 6346 "Attempted to set profile owner for invalid userId: " + userHandle); 6347 } 6348 if (info.isGuest()) { 6349 throw new IllegalStateException("Cannot set a profile owner on a guest"); 6350 } 6351 if (mOwners.hasProfileOwner(userHandle)) { 6352 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 6353 + "is already set."); 6354 } 6355 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 6356 throw new IllegalStateException("Trying to set the profile owner, but the user " 6357 + "already has a device owner."); 6358 } 6359 int callingUid = mInjector.binderGetCallingUid(); 6360 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 6361 if (hasUserSetupCompleted(userHandle) 6362 && hasIncompatibleAccountsLocked(userHandle, owner)) { 6363 throw new IllegalStateException("Not allowed to set the profile owner because " 6364 + "there are already some accounts on the profile"); 6365 } 6366 return; 6367 } 6368 enforceCanManageProfileAndDeviceOwners(); 6369 if (hasUserSetupCompleted(userHandle) && !isCallerWithSystemUid()) { 6370 throw new IllegalStateException("Cannot set the profile owner on a user which is " 6371 + "already set-up"); 6372 } 6373 } 6374 6375 /** 6376 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 6377 * permission. 6378 */ 6379 private void enforceCanSetDeviceOwnerLocked(@Nullable ComponentName owner, int userId) { 6380 int callingUid = mInjector.binderGetCallingUid(); 6381 boolean isAdb = callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID; 6382 if (!isAdb) { 6383 enforceCanManageProfileAndDeviceOwners(); 6384 } 6385 6386 final int code = checkSetDeviceOwnerPreConditionLocked(owner, userId, isAdb); 6387 switch (code) { 6388 case CODE_OK: 6389 return; 6390 case CODE_HAS_DEVICE_OWNER: 6391 throw new IllegalStateException( 6392 "Trying to set the device owner, but device owner is already set."); 6393 case CODE_USER_HAS_PROFILE_OWNER: 6394 throw new IllegalStateException("Trying to set the device owner, but the user " 6395 + "already has a profile owner."); 6396 case CODE_USER_NOT_RUNNING: 6397 throw new IllegalStateException("User not running: " + userId); 6398 case CODE_NOT_SYSTEM_USER: 6399 throw new IllegalStateException("User is not system user"); 6400 case CODE_USER_SETUP_COMPLETED: 6401 throw new IllegalStateException( 6402 "Cannot set the device owner if the device is already set-up"); 6403 case CODE_NONSYSTEM_USER_EXISTS: 6404 throw new IllegalStateException("Not allowed to set the device owner because there " 6405 + "are already several users on the device"); 6406 case CODE_ACCOUNTS_NOT_EMPTY: 6407 throw new IllegalStateException("Not allowed to set the device owner because there " 6408 + "are already some accounts on the device"); 6409 default: 6410 throw new IllegalStateException("Unknown @DeviceOwnerPreConditionCode " + code); 6411 } 6412 } 6413 6414 private void enforceUserUnlocked(int userId) { 6415 // Since we're doing this operation on behalf of an app, we only 6416 // want to use the actual "unlocked" state. 6417 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 6418 "User must be running and unlocked"); 6419 } 6420 6421 private void enforceManageUsers() { 6422 final int callingUid = mInjector.binderGetCallingUid(); 6423 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 6424 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 6425 } 6426 } 6427 6428 private void enforceFullCrossUsersPermission(int userHandle) { 6429 enforceSystemUserOrPermission(userHandle, 6430 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 6431 } 6432 6433 private void enforceCrossUsersPermission(int userHandle) { 6434 enforceSystemUserOrPermission(userHandle, 6435 android.Manifest.permission.INTERACT_ACROSS_USERS); 6436 } 6437 6438 private void enforceSystemUserOrPermission(int userHandle, String permission) { 6439 if (userHandle < 0) { 6440 throw new IllegalArgumentException("Invalid userId " + userHandle); 6441 } 6442 final int callingUid = mInjector.binderGetCallingUid(); 6443 if (userHandle == UserHandle.getUserId(callingUid)) { 6444 return; 6445 } 6446 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 6447 mContext.enforceCallingOrSelfPermission(permission, 6448 "Must be system or have " + permission + " permission"); 6449 } 6450 } 6451 6452 private void enforceManagedProfile(int userHandle, String message) { 6453 if(!isManagedProfile(userHandle)) { 6454 throw new SecurityException("You can not " + message + " outside a managed profile."); 6455 } 6456 } 6457 6458 private void enforceNotManagedProfile(int userHandle, String message) { 6459 if(isManagedProfile(userHandle)) { 6460 throw new SecurityException("You can not " + message + " for a managed profile."); 6461 } 6462 } 6463 6464 private void ensureCallerPackage(@Nullable String packageName) { 6465 if (packageName == null) { 6466 Preconditions.checkState(isCallerWithSystemUid(), 6467 "Only caller can omit package name"); 6468 } else { 6469 final int callingUid = mInjector.binderGetCallingUid(); 6470 final int userId = mInjector.userHandleGetCallingUserId(); 6471 try { 6472 final ApplicationInfo ai = mIPackageManager.getApplicationInfo( 6473 packageName, 0, userId); 6474 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name"); 6475 } catch (RemoteException e) { 6476 // Shouldn't happen 6477 } 6478 } 6479 } 6480 6481 private boolean isCallerWithSystemUid() { 6482 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 6483 } 6484 6485 private int getProfileParentId(int userHandle) { 6486 final long ident = mInjector.binderClearCallingIdentity(); 6487 try { 6488 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 6489 return parentUser != null ? parentUser.id : userHandle; 6490 } finally { 6491 mInjector.binderRestoreCallingIdentity(ident); 6492 } 6493 } 6494 6495 private int getCredentialOwner(int userHandle, boolean parent) { 6496 final long ident = mInjector.binderClearCallingIdentity(); 6497 try { 6498 if (parent) { 6499 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 6500 if (parentProfile != null) { 6501 userHandle = parentProfile.id; 6502 } 6503 } 6504 return mUserManager.getCredentialOwnerProfile(userHandle); 6505 } finally { 6506 mInjector.binderRestoreCallingIdentity(ident); 6507 } 6508 } 6509 6510 private boolean isManagedProfile(int userHandle) { 6511 return getUserInfo(userHandle).isManagedProfile(); 6512 } 6513 6514 private void enableIfNecessary(String packageName, int userId) { 6515 try { 6516 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 6517 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 6518 userId); 6519 if (ai.enabledSetting 6520 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 6521 mIPackageManager.setApplicationEnabledSetting(packageName, 6522 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 6523 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 6524 } 6525 } catch (RemoteException e) { 6526 } 6527 } 6528 6529 @Override 6530 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 6531 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 6532 != PackageManager.PERMISSION_GRANTED) { 6533 6534 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 6535 + mInjector.binderGetCallingPid() 6536 + ", uid=" + mInjector.binderGetCallingUid()); 6537 return; 6538 } 6539 6540 synchronized (this) { 6541 pw.println("Current Device Policy Manager state:"); 6542 mOwners.dump(" ", pw); 6543 int userCount = mUserData.size(); 6544 for (int u = 0; u < userCount; u++) { 6545 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 6546 pw.println(); 6547 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 6548 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 6549 final int N = policy.mAdminList.size(); 6550 for (int i=0; i<N; i++) { 6551 ActiveAdmin ap = policy.mAdminList.get(i); 6552 if (ap != null) { 6553 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 6554 pw.println(":"); 6555 ap.dump(" ", pw); 6556 } 6557 } 6558 if (!policy.mRemovingAdmins.isEmpty()) { 6559 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 6560 + policy.mRemovingAdmins); 6561 } 6562 6563 pw.println(" "); 6564 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 6565 } 6566 pw.println(); 6567 pw.println("Encryption Status: " + getEncryptionStatusName(getEncryptionStatus())); 6568 } 6569 } 6570 6571 private String getEncryptionStatusName(int encryptionStatus) { 6572 switch (encryptionStatus) { 6573 case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE: 6574 return "inactive"; 6575 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: 6576 return "block default key"; 6577 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE: 6578 return "block"; 6579 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER: 6580 return "per-user"; 6581 case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED: 6582 return "unsupported"; 6583 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING: 6584 return "activating"; 6585 default: 6586 return "unknown"; 6587 } 6588 } 6589 6590 @Override 6591 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 6592 ComponentName activity) { 6593 Preconditions.checkNotNull(who, "ComponentName is null"); 6594 final int userHandle = UserHandle.getCallingUserId(); 6595 synchronized (this) { 6596 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6597 6598 long id = mInjector.binderClearCallingIdentity(); 6599 try { 6600 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 6601 } catch (RemoteException re) { 6602 // Shouldn't happen 6603 } finally { 6604 mInjector.binderRestoreCallingIdentity(id); 6605 } 6606 } 6607 } 6608 6609 @Override 6610 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 6611 Preconditions.checkNotNull(who, "ComponentName is null"); 6612 final int userHandle = UserHandle.getCallingUserId(); 6613 synchronized (this) { 6614 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6615 6616 long id = mInjector.binderClearCallingIdentity(); 6617 try { 6618 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 6619 } catch (RemoteException re) { 6620 // Shouldn't happen 6621 } finally { 6622 mInjector.binderRestoreCallingIdentity(id); 6623 } 6624 } 6625 } 6626 6627 @Override 6628 public boolean setApplicationRestrictionsManagingPackage(ComponentName admin, 6629 String packageName) { 6630 Preconditions.checkNotNull(admin, "ComponentName is null"); 6631 6632 final int userHandle = mInjector.userHandleGetCallingUserId(); 6633 synchronized (this) { 6634 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6635 if (packageName != null && !isPackageInstalledForUser(packageName, userHandle)) { 6636 return false; 6637 } 6638 DevicePolicyData policy = getUserData(userHandle); 6639 policy.mApplicationRestrictionsManagingPackage = packageName; 6640 saveSettingsLocked(userHandle); 6641 return true; 6642 } 6643 } 6644 6645 @Override 6646 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 6647 Preconditions.checkNotNull(admin, "ComponentName is null"); 6648 6649 final int userHandle = mInjector.userHandleGetCallingUserId(); 6650 synchronized (this) { 6651 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6652 DevicePolicyData policy = getUserData(userHandle); 6653 return policy.mApplicationRestrictionsManagingPackage; 6654 } 6655 } 6656 6657 @Override 6658 public boolean isCallerApplicationRestrictionsManagingPackage() { 6659 final int callingUid = mInjector.binderGetCallingUid(); 6660 final int userHandle = UserHandle.getUserId(callingUid); 6661 synchronized (this) { 6662 final DevicePolicyData policy = getUserData(userHandle); 6663 if (policy.mApplicationRestrictionsManagingPackage == null) { 6664 return false; 6665 } 6666 6667 try { 6668 int uid = mContext.getPackageManager().getPackageUidAsUser( 6669 policy.mApplicationRestrictionsManagingPackage, userHandle); 6670 return uid == callingUid; 6671 } catch (NameNotFoundException e) { 6672 return false; 6673 } 6674 } 6675 } 6676 6677 private void enforceCanManageApplicationRestrictions(ComponentName who) { 6678 if (who != null) { 6679 synchronized (this) { 6680 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6681 } 6682 } else if (!isCallerApplicationRestrictionsManagingPackage()) { 6683 throw new SecurityException( 6684 "No admin component given, and caller cannot manage application restrictions " 6685 + "for other apps."); 6686 } 6687 } 6688 6689 @Override 6690 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 6691 enforceCanManageApplicationRestrictions(who); 6692 6693 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 6694 final long id = mInjector.binderClearCallingIdentity(); 6695 try { 6696 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 6697 } finally { 6698 mInjector.binderRestoreCallingIdentity(id); 6699 } 6700 } 6701 6702 @Override 6703 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 6704 PersistableBundle args, boolean parent) { 6705 if (!mHasFeature) { 6706 return; 6707 } 6708 Preconditions.checkNotNull(admin, "admin is null"); 6709 Preconditions.checkNotNull(agent, "agent is null"); 6710 final int userHandle = UserHandle.getCallingUserId(); 6711 synchronized (this) { 6712 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 6713 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 6714 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 6715 saveSettingsLocked(userHandle); 6716 } 6717 } 6718 6719 @Override 6720 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 6721 ComponentName agent, int userHandle, boolean parent) { 6722 if (!mHasFeature) { 6723 return null; 6724 } 6725 Preconditions.checkNotNull(agent, "agent null"); 6726 enforceFullCrossUsersPermission(userHandle); 6727 6728 synchronized (this) { 6729 final String componentName = agent.flattenToString(); 6730 if (admin != null) { 6731 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle, parent); 6732 if (ap == null) return null; 6733 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 6734 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 6735 List<PersistableBundle> result = new ArrayList<>(); 6736 result.add(trustAgentInfo.options); 6737 return result; 6738 } 6739 6740 // Return strictest policy for this user and profiles that are visible from this user. 6741 List<PersistableBundle> result = null; 6742 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 6743 // of the options. If any admin doesn't have options, discard options for the rest 6744 // and return null. 6745 List<ActiveAdmin> admins = 6746 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 6747 boolean allAdminsHaveOptions = true; 6748 final int N = admins.size(); 6749 for (int i = 0; i < N; i++) { 6750 final ActiveAdmin active = admins.get(i); 6751 6752 final boolean disablesTrust = (active.disabledKeyguardFeatures 6753 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 6754 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 6755 if (info != null && info.options != null && !info.options.isEmpty()) { 6756 if (disablesTrust) { 6757 if (result == null) { 6758 result = new ArrayList<>(); 6759 } 6760 result.add(info.options); 6761 } else { 6762 Log.w(LOG_TAG, "Ignoring admin " + active.info 6763 + " because it has trust options but doesn't declare " 6764 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 6765 } 6766 } else if (disablesTrust) { 6767 allAdminsHaveOptions = false; 6768 break; 6769 } 6770 } 6771 return allAdminsHaveOptions ? result : null; 6772 } 6773 } 6774 6775 @Override 6776 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 6777 Preconditions.checkNotNull(who, "ComponentName is null"); 6778 synchronized (this) { 6779 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6780 6781 int userHandle = UserHandle.getCallingUserId(); 6782 DevicePolicyData userData = getUserData(userHandle); 6783 userData.mRestrictionsProvider = permissionProvider; 6784 saveSettingsLocked(userHandle); 6785 } 6786 } 6787 6788 @Override 6789 public ComponentName getRestrictionsProvider(int userHandle) { 6790 synchronized (this) { 6791 if (!isCallerWithSystemUid()) { 6792 throw new SecurityException("Only the system can query the permission provider"); 6793 } 6794 DevicePolicyData userData = getUserData(userHandle); 6795 return userData != null ? userData.mRestrictionsProvider : null; 6796 } 6797 } 6798 6799 @Override 6800 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 6801 Preconditions.checkNotNull(who, "ComponentName is null"); 6802 int callingUserId = UserHandle.getCallingUserId(); 6803 synchronized (this) { 6804 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6805 6806 long id = mInjector.binderClearCallingIdentity(); 6807 try { 6808 UserInfo parent = mUserManager.getProfileParent(callingUserId); 6809 if (parent == null) { 6810 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 6811 + "parent"); 6812 return; 6813 } 6814 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 6815 mIPackageManager.addCrossProfileIntentFilter( 6816 filter, who.getPackageName(), callingUserId, parent.id, 0); 6817 } 6818 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 6819 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 6820 parent.id, callingUserId, 0); 6821 } 6822 } catch (RemoteException re) { 6823 // Shouldn't happen 6824 } finally { 6825 mInjector.binderRestoreCallingIdentity(id); 6826 } 6827 } 6828 } 6829 6830 @Override 6831 public void clearCrossProfileIntentFilters(ComponentName who) { 6832 Preconditions.checkNotNull(who, "ComponentName is null"); 6833 int callingUserId = UserHandle.getCallingUserId(); 6834 synchronized (this) { 6835 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6836 long id = mInjector.binderClearCallingIdentity(); 6837 try { 6838 UserInfo parent = mUserManager.getProfileParent(callingUserId); 6839 if (parent == null) { 6840 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 6841 + "parent"); 6842 return; 6843 } 6844 // Removing those that go from the managed profile to the parent. 6845 mIPackageManager.clearCrossProfileIntentFilters( 6846 callingUserId, who.getPackageName()); 6847 // And those that go from the parent to the managed profile. 6848 // If we want to support multiple managed profiles, we will have to only remove 6849 // those that have callingUserId as their target. 6850 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 6851 } catch (RemoteException re) { 6852 // Shouldn't happen 6853 } finally { 6854 mInjector.binderRestoreCallingIdentity(id); 6855 } 6856 } 6857 } 6858 6859 /** 6860 * @return true if all packages in enabledPackages are either in the list 6861 * permittedList or are a system app. 6862 */ 6863 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 6864 List<String> permittedList, int userIdToCheck) { 6865 long id = mInjector.binderClearCallingIdentity(); 6866 try { 6867 // If we have an enabled packages list for a managed profile the packages 6868 // we should check are installed for the parent user. 6869 UserInfo user = getUserInfo(userIdToCheck); 6870 if (user.isManagedProfile()) { 6871 userIdToCheck = user.profileGroupId; 6872 } 6873 6874 for (String enabledPackage : enabledPackages) { 6875 boolean systemService = false; 6876 try { 6877 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 6878 enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 6879 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 6880 } catch (RemoteException e) { 6881 Log.i(LOG_TAG, "Can't talk to package managed", e); 6882 } 6883 if (!systemService && !permittedList.contains(enabledPackage)) { 6884 return false; 6885 } 6886 } 6887 } finally { 6888 mInjector.binderRestoreCallingIdentity(id); 6889 } 6890 return true; 6891 } 6892 6893 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 6894 // Not using AccessibilityManager.getInstance because that guesses 6895 // at the user you require based on callingUid and caches for a given 6896 // process. 6897 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 6898 IAccessibilityManager service = iBinder == null 6899 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 6900 return new AccessibilityManager(mContext, service, userId); 6901 } 6902 6903 @Override 6904 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 6905 if (!mHasFeature) { 6906 return false; 6907 } 6908 Preconditions.checkNotNull(who, "ComponentName is null"); 6909 6910 if (packageList != null) { 6911 int userId = UserHandle.getCallingUserId(); 6912 List<AccessibilityServiceInfo> enabledServices = null; 6913 long id = mInjector.binderClearCallingIdentity(); 6914 try { 6915 UserInfo user = getUserInfo(userId); 6916 if (user.isManagedProfile()) { 6917 userId = user.profileGroupId; 6918 } 6919 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 6920 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 6921 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 6922 } finally { 6923 mInjector.binderRestoreCallingIdentity(id); 6924 } 6925 6926 if (enabledServices != null) { 6927 List<String> enabledPackages = new ArrayList<String>(); 6928 for (AccessibilityServiceInfo service : enabledServices) { 6929 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 6930 } 6931 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 6932 userId)) { 6933 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 6934 + "because it contains already enabled accesibility services."); 6935 return false; 6936 } 6937 } 6938 } 6939 6940 synchronized (this) { 6941 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6942 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6943 admin.permittedAccessiblityServices = packageList; 6944 saveSettingsLocked(UserHandle.getCallingUserId()); 6945 } 6946 return true; 6947 } 6948 6949 @Override 6950 public List getPermittedAccessibilityServices(ComponentName who) { 6951 if (!mHasFeature) { 6952 return null; 6953 } 6954 Preconditions.checkNotNull(who, "ComponentName is null"); 6955 6956 synchronized (this) { 6957 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6958 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6959 return admin.permittedAccessiblityServices; 6960 } 6961 } 6962 6963 @Override 6964 public List getPermittedAccessibilityServicesForUser(int userId) { 6965 if (!mHasFeature) { 6966 return null; 6967 } 6968 synchronized (this) { 6969 List<String> result = null; 6970 // If we have multiple profiles we return the intersection of the 6971 // permitted lists. This can happen in cases where we have a device 6972 // and profile owner. 6973 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 6974 for (int profileId : profileIds) { 6975 // Just loop though all admins, only device or profiles 6976 // owners can have permitted lists set. 6977 DevicePolicyData policy = getUserDataUnchecked(profileId); 6978 final int N = policy.mAdminList.size(); 6979 for (int j = 0; j < N; j++) { 6980 ActiveAdmin admin = policy.mAdminList.get(j); 6981 List<String> fromAdmin = admin.permittedAccessiblityServices; 6982 if (fromAdmin != null) { 6983 if (result == null) { 6984 result = new ArrayList<>(fromAdmin); 6985 } else { 6986 result.retainAll(fromAdmin); 6987 } 6988 } 6989 } 6990 } 6991 6992 // If we have a permitted list add all system accessibility services. 6993 if (result != null) { 6994 long id = mInjector.binderClearCallingIdentity(); 6995 try { 6996 UserInfo user = getUserInfo(userId); 6997 if (user.isManagedProfile()) { 6998 userId = user.profileGroupId; 6999 } 7000 AccessibilityManager accessibilityManager = 7001 getAccessibilityManagerForUser(userId); 7002 List<AccessibilityServiceInfo> installedServices = 7003 accessibilityManager.getInstalledAccessibilityServiceList(); 7004 7005 if (installedServices != null) { 7006 for (AccessibilityServiceInfo service : installedServices) { 7007 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 7008 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7009 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7010 result.add(serviceInfo.packageName); 7011 } 7012 } 7013 } 7014 } finally { 7015 mInjector.binderRestoreCallingIdentity(id); 7016 } 7017 } 7018 7019 return result; 7020 } 7021 } 7022 7023 @Override 7024 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 7025 int userHandle) { 7026 if (!mHasFeature) { 7027 return true; 7028 } 7029 Preconditions.checkNotNull(who, "ComponentName is null"); 7030 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7031 if (!isCallerWithSystemUid()){ 7032 throw new SecurityException( 7033 "Only the system can query if an accessibility service is disabled by admin"); 7034 } 7035 synchronized (this) { 7036 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7037 if (admin == null) { 7038 return false; 7039 } 7040 if (admin.permittedAccessiblityServices == null) { 7041 return true; 7042 } 7043 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 7044 admin.permittedAccessiblityServices, userHandle); 7045 } 7046 } 7047 7048 private boolean checkCallerIsCurrentUserOrProfile() { 7049 int callingUserId = UserHandle.getCallingUserId(); 7050 long token = mInjector.binderClearCallingIdentity(); 7051 try { 7052 UserInfo currentUser; 7053 UserInfo callingUser = getUserInfo(callingUserId); 7054 try { 7055 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7056 } catch (RemoteException e) { 7057 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 7058 return false; 7059 } 7060 7061 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 7062 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 7063 + "of a user that isn't the foreground user."); 7064 return false; 7065 } 7066 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 7067 Slog.e(LOG_TAG, "Cannot set permitted input methods " 7068 + "of a user that isn't the foreground user."); 7069 return false; 7070 } 7071 } finally { 7072 mInjector.binderRestoreCallingIdentity(token); 7073 } 7074 return true; 7075 } 7076 7077 @Override 7078 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 7079 if (!mHasFeature) { 7080 return false; 7081 } 7082 Preconditions.checkNotNull(who, "ComponentName is null"); 7083 7084 // TODO When InputMethodManager supports per user calls remove 7085 // this restriction. 7086 if (!checkCallerIsCurrentUserOrProfile()) { 7087 return false; 7088 } 7089 7090 if (packageList != null) { 7091 // InputMethodManager fetches input methods for current user. 7092 // So this can only be set when calling user is the current user 7093 // or parent is current user in case of managed profiles. 7094 InputMethodManager inputMethodManager = 7095 mContext.getSystemService(InputMethodManager.class); 7096 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 7097 7098 if (enabledImes != null) { 7099 List<String> enabledPackages = new ArrayList<String>(); 7100 for (InputMethodInfo ime : enabledImes) { 7101 enabledPackages.add(ime.getPackageName()); 7102 } 7103 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7104 mInjector.binderGetCallingUserHandle().getIdentifier())) { 7105 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 7106 + "because it contains already enabled input method."); 7107 return false; 7108 } 7109 } 7110 } 7111 7112 synchronized (this) { 7113 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7114 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7115 admin.permittedInputMethods = packageList; 7116 saveSettingsLocked(UserHandle.getCallingUserId()); 7117 } 7118 return true; 7119 } 7120 7121 @Override 7122 public List getPermittedInputMethods(ComponentName who) { 7123 if (!mHasFeature) { 7124 return null; 7125 } 7126 Preconditions.checkNotNull(who, "ComponentName is null"); 7127 7128 synchronized (this) { 7129 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7130 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7131 return admin.permittedInputMethods; 7132 } 7133 } 7134 7135 @Override 7136 public List getPermittedInputMethodsForCurrentUser() { 7137 UserInfo currentUser; 7138 try { 7139 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7140 } catch (RemoteException e) { 7141 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 7142 // Activity managed is dead, just allow all IMEs 7143 return null; 7144 } 7145 7146 int userId = currentUser.id; 7147 synchronized (this) { 7148 List<String> result = null; 7149 // If we have multiple profiles we return the intersection of the 7150 // permitted lists. This can happen in cases where we have a device 7151 // and profile owner. 7152 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 7153 for (int profileId : profileIds) { 7154 // Just loop though all admins, only device or profiles 7155 // owners can have permitted lists set. 7156 DevicePolicyData policy = getUserDataUnchecked(profileId); 7157 final int N = policy.mAdminList.size(); 7158 for (int j = 0; j < N; j++) { 7159 ActiveAdmin admin = policy.mAdminList.get(j); 7160 List<String> fromAdmin = admin.permittedInputMethods; 7161 if (fromAdmin != null) { 7162 if (result == null) { 7163 result = new ArrayList<String>(fromAdmin); 7164 } else { 7165 result.retainAll(fromAdmin); 7166 } 7167 } 7168 } 7169 } 7170 7171 // If we have a permitted list add all system input methods. 7172 if (result != null) { 7173 InputMethodManager inputMethodManager = 7174 mContext.getSystemService(InputMethodManager.class); 7175 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 7176 long id = mInjector.binderClearCallingIdentity(); 7177 try { 7178 if (imes != null) { 7179 for (InputMethodInfo ime : imes) { 7180 ServiceInfo serviceInfo = ime.getServiceInfo(); 7181 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7182 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7183 result.add(serviceInfo.packageName); 7184 } 7185 } 7186 } 7187 } finally { 7188 mInjector.binderRestoreCallingIdentity(id); 7189 } 7190 } 7191 return result; 7192 } 7193 } 7194 7195 @Override 7196 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 7197 int userHandle) { 7198 if (!mHasFeature) { 7199 return true; 7200 } 7201 Preconditions.checkNotNull(who, "ComponentName is null"); 7202 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7203 if (!isCallerWithSystemUid()) { 7204 throw new SecurityException( 7205 "Only the system can query if an input method is disabled by admin"); 7206 } 7207 synchronized (this) { 7208 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7209 if (admin == null) { 7210 return false; 7211 } 7212 if (admin.permittedInputMethods == null) { 7213 return true; 7214 } 7215 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 7216 admin.permittedInputMethods, userHandle); 7217 } 7218 } 7219 7220 private void sendAdminEnabledBroadcastLocked(int userHandle) { 7221 DevicePolicyData policyData = getUserData(userHandle); 7222 if (policyData.mAdminBroadcastPending) { 7223 // Send the initialization data to profile owner and delete the data 7224 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 7225 if (admin != null) { 7226 PersistableBundle initBundle = policyData.mInitBundle; 7227 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 7228 initBundle == null ? null : new Bundle(initBundle), null); 7229 } 7230 policyData.mInitBundle = null; 7231 policyData.mAdminBroadcastPending = false; 7232 saveSettingsLocked(userHandle); 7233 } 7234 } 7235 7236 @Override 7237 public UserHandle createAndManageUser(ComponentName admin, String name, 7238 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 7239 Preconditions.checkNotNull(admin, "admin is null"); 7240 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 7241 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 7242 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 7243 + admin + " are not in the same package"); 7244 } 7245 // Only allow the system user to use this method 7246 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 7247 throw new SecurityException("createAndManageUser was called from non-system user"); 7248 } 7249 if (!mInjector.userManagerIsSplitSystemUser() 7250 && (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 7251 throw new IllegalArgumentException( 7252 "Ephemeral users are only supported on systems with a split system user."); 7253 } 7254 // Create user. 7255 UserHandle user = null; 7256 synchronized (this) { 7257 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7258 7259 final long id = mInjector.binderClearCallingIdentity(); 7260 try { 7261 int userInfoFlags = 0; 7262 if ((flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 7263 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 7264 } 7265 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 7266 userInfoFlags); 7267 if (userInfo != null) { 7268 user = userInfo.getUserHandle(); 7269 } 7270 } finally { 7271 mInjector.binderRestoreCallingIdentity(id); 7272 } 7273 } 7274 if (user == null) { 7275 return null; 7276 } 7277 // Set admin. 7278 final long id = mInjector.binderClearCallingIdentity(); 7279 try { 7280 final String adminPkg = admin.getPackageName(); 7281 7282 final int userHandle = user.getIdentifier(); 7283 try { 7284 // Install the profile owner if not present. 7285 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 7286 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle); 7287 } 7288 } catch (RemoteException e) { 7289 Slog.e(LOG_TAG, "Failed to make remote calls for createAndManageUser, " 7290 + "removing created user", e); 7291 mUserManager.removeUser(user.getIdentifier()); 7292 return null; 7293 } 7294 7295 setActiveAdmin(profileOwner, true, userHandle); 7296 // User is not started yet, the broadcast by setActiveAdmin will not be received. 7297 // So we store adminExtras for broadcasting when the user starts for first time. 7298 synchronized(this) { 7299 DevicePolicyData policyData = getUserData(userHandle); 7300 policyData.mInitBundle = adminExtras; 7301 policyData.mAdminBroadcastPending = true; 7302 saveSettingsLocked(userHandle); 7303 } 7304 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 7305 setProfileOwner(profileOwner, ownerName, userHandle); 7306 7307 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 7308 Settings.Secure.putIntForUser(mContext.getContentResolver(), 7309 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 7310 } 7311 7312 return user; 7313 } finally { 7314 mInjector.binderRestoreCallingIdentity(id); 7315 } 7316 } 7317 7318 @Override 7319 public boolean removeUser(ComponentName who, UserHandle userHandle) { 7320 Preconditions.checkNotNull(who, "ComponentName is null"); 7321 synchronized (this) { 7322 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7323 7324 long id = mInjector.binderClearCallingIdentity(); 7325 try { 7326 return mUserManager.removeUser(userHandle.getIdentifier()); 7327 } finally { 7328 mInjector.binderRestoreCallingIdentity(id); 7329 } 7330 } 7331 } 7332 7333 @Override 7334 public boolean switchUser(ComponentName who, UserHandle userHandle) { 7335 Preconditions.checkNotNull(who, "ComponentName is null"); 7336 synchronized (this) { 7337 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7338 7339 long id = mInjector.binderClearCallingIdentity(); 7340 try { 7341 int userId = UserHandle.USER_SYSTEM; 7342 if (userHandle != null) { 7343 userId = userHandle.getIdentifier(); 7344 } 7345 return mInjector.getIActivityManager().switchUser(userId); 7346 } catch (RemoteException e) { 7347 Log.e(LOG_TAG, "Couldn't switch user", e); 7348 return false; 7349 } finally { 7350 mInjector.binderRestoreCallingIdentity(id); 7351 } 7352 } 7353 } 7354 7355 @Override 7356 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 7357 enforceCanManageApplicationRestrictions(who); 7358 7359 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 7360 final long id = mInjector.binderClearCallingIdentity(); 7361 try { 7362 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 7363 // if no restrictions were saved, mUserManager.getApplicationRestrictions 7364 // returns null, but DPM method should return an empty Bundle as per JavaDoc 7365 return bundle != null ? bundle : Bundle.EMPTY; 7366 } finally { 7367 mInjector.binderRestoreCallingIdentity(id); 7368 } 7369 } 7370 7371 @Override 7372 public String[] setPackagesSuspended(ComponentName who, String[] packageNames, 7373 boolean suspended) { 7374 Preconditions.checkNotNull(who, "ComponentName is null"); 7375 int callingUserId = UserHandle.getCallingUserId(); 7376 synchronized (this) { 7377 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7378 7379 long id = mInjector.binderClearCallingIdentity(); 7380 try { 7381 return mIPackageManager.setPackagesSuspendedAsUser( 7382 packageNames, suspended, callingUserId); 7383 } catch (RemoteException re) { 7384 // Shouldn't happen. 7385 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 7386 } finally { 7387 mInjector.binderRestoreCallingIdentity(id); 7388 } 7389 return packageNames; 7390 } 7391 } 7392 7393 @Override 7394 public boolean isPackageSuspended(ComponentName who, String packageName) { 7395 Preconditions.checkNotNull(who, "ComponentName is null"); 7396 int callingUserId = UserHandle.getCallingUserId(); 7397 synchronized (this) { 7398 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7399 7400 long id = mInjector.binderClearCallingIdentity(); 7401 try { 7402 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 7403 } catch (RemoteException re) { 7404 // Shouldn't happen. 7405 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 7406 } finally { 7407 mInjector.binderRestoreCallingIdentity(id); 7408 } 7409 return false; 7410 } 7411 } 7412 7413 @Override 7414 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 7415 Preconditions.checkNotNull(who, "ComponentName is null"); 7416 if (!UserRestrictionsUtils.isValidRestriction(key)) { 7417 return; 7418 } 7419 7420 final int userHandle = mInjector.userHandleGetCallingUserId(); 7421 synchronized (this) { 7422 ActiveAdmin activeAdmin = 7423 getActiveAdminForCallerLocked(who, 7424 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7425 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 7426 if (isDeviceOwner) { 7427 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 7428 throw new SecurityException("Device owner cannot set user restriction " + key); 7429 } 7430 } else { // profile owner 7431 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 7432 throw new SecurityException("Profile owner cannot set user restriction " + key); 7433 } 7434 } 7435 7436 // Save the restriction to ActiveAdmin. 7437 activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner); 7438 saveSettingsLocked(userHandle); 7439 7440 pushUserRestrictions(userHandle); 7441 7442 sendChangedNotification(userHandle); 7443 } 7444 } 7445 7446 private void pushUserRestrictions(int userId) { 7447 synchronized (this) { 7448 final Bundle global; 7449 final Bundle local = new Bundle(); 7450 if (mOwners.isDeviceOwnerUserId(userId)) { 7451 global = new Bundle(); 7452 7453 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 7454 if (deviceOwner == null) { 7455 return; // Shouldn't happen. 7456 } 7457 7458 UserRestrictionsUtils.sortToGlobalAndLocal(deviceOwner.userRestrictions, 7459 global, local); 7460 // DO can disable camera globally. 7461 if (deviceOwner.disableCamera) { 7462 global.putBoolean(UserManager.DISALLOW_CAMERA, true); 7463 } 7464 } else { 7465 global = null; 7466 7467 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 7468 if (profileOwner != null) { 7469 UserRestrictionsUtils.merge(local, profileOwner.userRestrictions); 7470 } 7471 } 7472 // Also merge in *local* camera restriction. 7473 if (getCameraDisabled(/* who= */ null, 7474 userId, /* mergeDeviceOwnerRestriction= */ false)) { 7475 local.putBoolean(UserManager.DISALLOW_CAMERA, true); 7476 } 7477 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, local, global); 7478 } 7479 } 7480 7481 @Override 7482 public Bundle getUserRestrictions(ComponentName who) { 7483 if (!mHasFeature) { 7484 return null; 7485 } 7486 Preconditions.checkNotNull(who, "ComponentName is null"); 7487 synchronized (this) { 7488 final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who, 7489 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7490 return activeAdmin.userRestrictions; 7491 } 7492 } 7493 7494 @Override 7495 public boolean setApplicationHidden(ComponentName who, String packageName, 7496 boolean hidden) { 7497 Preconditions.checkNotNull(who, "ComponentName is null"); 7498 int callingUserId = UserHandle.getCallingUserId(); 7499 synchronized (this) { 7500 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7501 7502 long id = mInjector.binderClearCallingIdentity(); 7503 try { 7504 return mIPackageManager.setApplicationHiddenSettingAsUser( 7505 packageName, hidden, callingUserId); 7506 } catch (RemoteException re) { 7507 // shouldn't happen 7508 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 7509 } finally { 7510 mInjector.binderRestoreCallingIdentity(id); 7511 } 7512 return false; 7513 } 7514 } 7515 7516 @Override 7517 public boolean isApplicationHidden(ComponentName who, String packageName) { 7518 Preconditions.checkNotNull(who, "ComponentName is null"); 7519 int callingUserId = UserHandle.getCallingUserId(); 7520 synchronized (this) { 7521 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7522 7523 long id = mInjector.binderClearCallingIdentity(); 7524 try { 7525 return mIPackageManager.getApplicationHiddenSettingAsUser( 7526 packageName, callingUserId); 7527 } catch (RemoteException re) { 7528 // shouldn't happen 7529 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 7530 } finally { 7531 mInjector.binderRestoreCallingIdentity(id); 7532 } 7533 return false; 7534 } 7535 } 7536 7537 @Override 7538 public void enableSystemApp(ComponentName who, String packageName) { 7539 Preconditions.checkNotNull(who, "ComponentName is null"); 7540 synchronized (this) { 7541 // This API can only be called by an active device admin, 7542 // so try to retrieve it to check that the caller is one. 7543 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7544 7545 int userId = UserHandle.getCallingUserId(); 7546 long id = mInjector.binderClearCallingIdentity(); 7547 7548 try { 7549 if (VERBOSE_LOG) { 7550 Slog.v(LOG_TAG, "installing " + packageName + " for " 7551 + userId); 7552 } 7553 7554 int parentUserId = getProfileParentId(userId); 7555 if (!isSystemApp(mIPackageManager, packageName, parentUserId)) { 7556 throw new IllegalArgumentException("Only system apps can be enabled this way."); 7557 } 7558 7559 // Install the app. 7560 mIPackageManager.installExistingPackageAsUser(packageName, userId); 7561 7562 } catch (RemoteException re) { 7563 // shouldn't happen 7564 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 7565 } finally { 7566 mInjector.binderRestoreCallingIdentity(id); 7567 } 7568 } 7569 } 7570 7571 @Override 7572 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 7573 Preconditions.checkNotNull(who, "ComponentName is null"); 7574 synchronized (this) { 7575 // This API can only be called by an active device admin, 7576 // so try to retrieve it to check that the caller is one. 7577 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7578 7579 int userId = UserHandle.getCallingUserId(); 7580 long id = mInjector.binderClearCallingIdentity(); 7581 7582 try { 7583 int parentUserId = getProfileParentId(userId); 7584 List<ResolveInfo> activitiesToEnable = mIPackageManager 7585 .queryIntentActivities(intent, 7586 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 7587 PackageManager.MATCH_DIRECT_BOOT_AWARE 7588 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 7589 parentUserId) 7590 .getList(); 7591 7592 if (VERBOSE_LOG) { 7593 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 7594 } 7595 int numberOfAppsInstalled = 0; 7596 if (activitiesToEnable != null) { 7597 for (ResolveInfo info : activitiesToEnable) { 7598 if (info.activityInfo != null) { 7599 String packageName = info.activityInfo.packageName; 7600 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 7601 numberOfAppsInstalled++; 7602 mIPackageManager.installExistingPackageAsUser(packageName, userId); 7603 } else { 7604 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 7605 + " system app"); 7606 } 7607 } 7608 } 7609 } 7610 return numberOfAppsInstalled; 7611 } catch (RemoteException e) { 7612 // shouldn't happen 7613 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 7614 return 0; 7615 } finally { 7616 mInjector.binderRestoreCallingIdentity(id); 7617 } 7618 } 7619 } 7620 7621 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 7622 throws RemoteException { 7623 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 7624 userId); 7625 if (appInfo == null) { 7626 throw new IllegalArgumentException("The application " + packageName + 7627 " is not present on this device"); 7628 } 7629 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 7630 } 7631 7632 @Override 7633 public void setAccountManagementDisabled(ComponentName who, String accountType, 7634 boolean disabled) { 7635 if (!mHasFeature) { 7636 return; 7637 } 7638 Preconditions.checkNotNull(who, "ComponentName is null"); 7639 synchronized (this) { 7640 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 7641 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7642 if (disabled) { 7643 ap.accountTypesWithManagementDisabled.add(accountType); 7644 } else { 7645 ap.accountTypesWithManagementDisabled.remove(accountType); 7646 } 7647 saveSettingsLocked(UserHandle.getCallingUserId()); 7648 } 7649 } 7650 7651 @Override 7652 public String[] getAccountTypesWithManagementDisabled() { 7653 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 7654 } 7655 7656 @Override 7657 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 7658 enforceFullCrossUsersPermission(userId); 7659 if (!mHasFeature) { 7660 return null; 7661 } 7662 synchronized (this) { 7663 DevicePolicyData policy = getUserData(userId); 7664 final int N = policy.mAdminList.size(); 7665 ArraySet<String> resultSet = new ArraySet<>(); 7666 for (int i = 0; i < N; i++) { 7667 ActiveAdmin admin = policy.mAdminList.get(i); 7668 resultSet.addAll(admin.accountTypesWithManagementDisabled); 7669 } 7670 return resultSet.toArray(new String[resultSet.size()]); 7671 } 7672 } 7673 7674 @Override 7675 public void setUninstallBlocked(ComponentName who, String packageName, 7676 boolean uninstallBlocked) { 7677 Preconditions.checkNotNull(who, "ComponentName is null"); 7678 final int userId = UserHandle.getCallingUserId(); 7679 synchronized (this) { 7680 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7681 7682 long id = mInjector.binderClearCallingIdentity(); 7683 try { 7684 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 7685 } catch (RemoteException re) { 7686 // Shouldn't happen. 7687 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 7688 } finally { 7689 mInjector.binderRestoreCallingIdentity(id); 7690 } 7691 } 7692 } 7693 7694 @Override 7695 public boolean isUninstallBlocked(ComponentName who, String packageName) { 7696 // This function should return true if and only if the package is blocked by 7697 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 7698 // when the package is a system app, or when it is an active device admin. 7699 final int userId = UserHandle.getCallingUserId(); 7700 7701 synchronized (this) { 7702 if (who != null) { 7703 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7704 } 7705 7706 long id = mInjector.binderClearCallingIdentity(); 7707 try { 7708 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 7709 } catch (RemoteException re) { 7710 // Shouldn't happen. 7711 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 7712 } finally { 7713 mInjector.binderRestoreCallingIdentity(id); 7714 } 7715 } 7716 return false; 7717 } 7718 7719 @Override 7720 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 7721 if (!mHasFeature) { 7722 return; 7723 } 7724 Preconditions.checkNotNull(who, "ComponentName is null"); 7725 synchronized (this) { 7726 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7727 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7728 if (admin.disableCallerId != disabled) { 7729 admin.disableCallerId = disabled; 7730 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 7731 } 7732 } 7733 } 7734 7735 @Override 7736 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 7737 if (!mHasFeature) { 7738 return false; 7739 } 7740 Preconditions.checkNotNull(who, "ComponentName is null"); 7741 synchronized (this) { 7742 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7743 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7744 return admin.disableCallerId; 7745 } 7746 } 7747 7748 @Override 7749 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 7750 enforceCrossUsersPermission(userId); 7751 synchronized (this) { 7752 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7753 return (admin != null) ? admin.disableCallerId : false; 7754 } 7755 } 7756 7757 @Override 7758 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 7759 if (!mHasFeature) { 7760 return; 7761 } 7762 Preconditions.checkNotNull(who, "ComponentName is null"); 7763 synchronized (this) { 7764 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7765 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7766 if (admin.disableContactsSearch != disabled) { 7767 admin.disableContactsSearch = disabled; 7768 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 7769 } 7770 } 7771 } 7772 7773 @Override 7774 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 7775 if (!mHasFeature) { 7776 return false; 7777 } 7778 Preconditions.checkNotNull(who, "ComponentName is null"); 7779 synchronized (this) { 7780 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7781 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7782 return admin.disableContactsSearch; 7783 } 7784 } 7785 7786 @Override 7787 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 7788 enforceCrossUsersPermission(userId); 7789 synchronized (this) { 7790 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7791 return (admin != null) ? admin.disableContactsSearch : false; 7792 } 7793 } 7794 7795 @Override 7796 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 7797 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 7798 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 7799 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 7800 final int callingUserId = UserHandle.getCallingUserId(); 7801 7802 final long ident = mInjector.binderClearCallingIdentity(); 7803 try { 7804 synchronized (this) { 7805 final int managedUserId = getManagedUserId(callingUserId); 7806 if (managedUserId < 0) { 7807 return; 7808 } 7809 if (isCrossProfileQuickContactDisabled(managedUserId)) { 7810 if (VERBOSE_LOG) { 7811 Log.v(LOG_TAG, 7812 "Cross-profile contacts access disabled for user " + managedUserId); 7813 } 7814 return; 7815 } 7816 ContactsInternal.startQuickContactWithErrorToastForUser( 7817 mContext, intent, new UserHandle(managedUserId)); 7818 } 7819 } finally { 7820 mInjector.binderRestoreCallingIdentity(ident); 7821 } 7822 } 7823 7824 /** 7825 * @return true if cross-profile QuickContact is disabled 7826 */ 7827 private boolean isCrossProfileQuickContactDisabled(int userId) { 7828 return getCrossProfileCallerIdDisabledForUser(userId) 7829 && getCrossProfileContactsSearchDisabledForUser(userId); 7830 } 7831 7832 /** 7833 * @return the user ID of the managed user that is linked to the current user, if any. 7834 * Otherwise -1. 7835 */ 7836 public int getManagedUserId(int callingUserId) { 7837 if (VERBOSE_LOG) { 7838 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 7839 } 7840 7841 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 7842 if (ui.id == callingUserId || !ui.isManagedProfile()) { 7843 continue; // Caller user self, or not a managed profile. Skip. 7844 } 7845 if (VERBOSE_LOG) { 7846 Log.v(LOG_TAG, "Managed user=" + ui.id); 7847 } 7848 return ui.id; 7849 } 7850 if (VERBOSE_LOG) { 7851 Log.v(LOG_TAG, "Managed user not found."); 7852 } 7853 return -1; 7854 } 7855 7856 @Override 7857 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 7858 if (!mHasFeature) { 7859 return; 7860 } 7861 Preconditions.checkNotNull(who, "ComponentName is null"); 7862 synchronized (this) { 7863 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7864 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7865 if (admin.disableBluetoothContactSharing != disabled) { 7866 admin.disableBluetoothContactSharing = disabled; 7867 saveSettingsLocked(UserHandle.getCallingUserId()); 7868 } 7869 } 7870 } 7871 7872 @Override 7873 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 7874 if (!mHasFeature) { 7875 return false; 7876 } 7877 Preconditions.checkNotNull(who, "ComponentName is null"); 7878 synchronized (this) { 7879 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7880 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7881 return admin.disableBluetoothContactSharing; 7882 } 7883 } 7884 7885 @Override 7886 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 7887 // TODO: Should there be a check to make sure this relationship is 7888 // within a profile group? 7889 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 7890 synchronized (this) { 7891 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7892 return (admin != null) ? admin.disableBluetoothContactSharing : false; 7893 } 7894 } 7895 7896 /** 7897 * Sets which packages may enter lock task mode. 7898 * 7899 * <p>This function can only be called by the device owner or alternatively by the profile owner 7900 * in case the user is affiliated. 7901 * 7902 * @param packages The list of packages allowed to enter lock task mode. 7903 */ 7904 @Override 7905 public void setLockTaskPackages(ComponentName who, String[] packages) 7906 throws SecurityException { 7907 Preconditions.checkNotNull(who, "ComponentName is null"); 7908 synchronized (this) { 7909 ActiveAdmin deviceOwner = getActiveAdminWithPolicyForUidLocked( 7910 who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, mInjector.binderGetCallingUid()); 7911 ActiveAdmin profileOwner = getActiveAdminWithPolicyForUidLocked( 7912 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()); 7913 if (deviceOwner != null || (profileOwner != null && isAffiliatedUser())) { 7914 int userHandle = mInjector.userHandleGetCallingUserId(); 7915 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 7916 } else { 7917 throw new SecurityException("Admin " + who + 7918 " is neither the device owner or affiliated user's profile owner."); 7919 } 7920 } 7921 } 7922 7923 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 7924 DevicePolicyData policy = getUserData(userHandle); 7925 policy.mLockTaskPackages = packages; 7926 7927 // Store the settings persistently. 7928 saveSettingsLocked(userHandle); 7929 updateLockTaskPackagesLocked(packages, userHandle); 7930 } 7931 7932 /** 7933 * This function returns the list of components allowed to start the task lock mode. 7934 */ 7935 @Override 7936 public String[] getLockTaskPackages(ComponentName who) { 7937 Preconditions.checkNotNull(who, "ComponentName is null"); 7938 synchronized (this) { 7939 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7940 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 7941 final List<String> packages = getLockTaskPackagesLocked(userHandle); 7942 return packages.toArray(new String[packages.size()]); 7943 } 7944 } 7945 7946 private List<String> getLockTaskPackagesLocked(int userHandle) { 7947 final DevicePolicyData policy = getUserData(userHandle); 7948 return policy.mLockTaskPackages; 7949 } 7950 7951 /** 7952 * This function lets the caller know whether the given package is allowed to start the 7953 * lock task mode. 7954 * @param pkg The package to check 7955 */ 7956 @Override 7957 public boolean isLockTaskPermitted(String pkg) { 7958 // Get current user's devicepolicy 7959 int uid = mInjector.binderGetCallingUid(); 7960 int userHandle = UserHandle.getUserId(uid); 7961 DevicePolicyData policy = getUserData(userHandle); 7962 synchronized (this) { 7963 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 7964 String lockTaskPackage = policy.mLockTaskPackages.get(i); 7965 7966 // If the given package equals one of the packages stored our list, 7967 // we allow this package to start lock task mode. 7968 if (lockTaskPackage.equals(pkg)) { 7969 return true; 7970 } 7971 } 7972 } 7973 return false; 7974 } 7975 7976 @Override 7977 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 7978 if (!isCallerWithSystemUid()) { 7979 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 7980 } 7981 synchronized (this) { 7982 final DevicePolicyData policy = getUserData(userHandle); 7983 Bundle adminExtras = new Bundle(); 7984 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 7985 for (ActiveAdmin admin : policy.mAdminList) { 7986 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 7987 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 7988 if (ownsDevice || ownsProfile) { 7989 if (isEnabled) { 7990 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 7991 adminExtras, null); 7992 } else { 7993 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 7994 } 7995 } 7996 } 7997 } 7998 } 7999 8000 @Override 8001 public void setGlobalSetting(ComponentName who, String setting, String value) { 8002 Preconditions.checkNotNull(who, "ComponentName is null"); 8003 8004 synchronized (this) { 8005 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8006 8007 // Some settings are no supported any more. However we do not want to throw a 8008 // SecurityException to avoid breaking apps. 8009 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 8010 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 8011 return; 8012 } 8013 8014 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 8015 throw new SecurityException(String.format( 8016 "Permission denial: device owners cannot update %1$s", setting)); 8017 } 8018 8019 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 8020 // ignore if it contradicts an existing policy 8021 long timeMs = getMaximumTimeToLock( 8022 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 8023 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 8024 return; 8025 } 8026 } 8027 8028 long id = mInjector.binderClearCallingIdentity(); 8029 try { 8030 mInjector.settingsGlobalPutString(setting, value); 8031 } finally { 8032 mInjector.binderRestoreCallingIdentity(id); 8033 } 8034 } 8035 } 8036 8037 @Override 8038 public void setSecureSetting(ComponentName who, String setting, String value) { 8039 Preconditions.checkNotNull(who, "ComponentName is null"); 8040 int callingUserId = mInjector.userHandleGetCallingUserId(); 8041 8042 synchronized (this) { 8043 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8044 8045 if (isDeviceOwner(who, callingUserId)) { 8046 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 8047 throw new SecurityException(String.format( 8048 "Permission denial: Device owners cannot update %1$s", setting)); 8049 } 8050 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 8051 throw new SecurityException(String.format( 8052 "Permission denial: Profile owners cannot update %1$s", setting)); 8053 } 8054 8055 long id = mInjector.binderClearCallingIdentity(); 8056 try { 8057 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 8058 } finally { 8059 mInjector.binderRestoreCallingIdentity(id); 8060 } 8061 } 8062 } 8063 8064 @Override 8065 public void setMasterVolumeMuted(ComponentName who, boolean on) { 8066 Preconditions.checkNotNull(who, "ComponentName is null"); 8067 synchronized (this) { 8068 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8069 setUserRestriction(who, UserManager.DISALLLOW_UNMUTE_DEVICE, on); 8070 } 8071 } 8072 8073 @Override 8074 public boolean isMasterVolumeMuted(ComponentName who) { 8075 Preconditions.checkNotNull(who, "ComponentName is null"); 8076 synchronized (this) { 8077 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8078 8079 AudioManager audioManager = 8080 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 8081 return audioManager.isMasterMute(); 8082 } 8083 } 8084 8085 @Override 8086 public void setUserIcon(ComponentName who, Bitmap icon) { 8087 synchronized (this) { 8088 Preconditions.checkNotNull(who, "ComponentName is null"); 8089 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8090 8091 int userId = UserHandle.getCallingUserId(); 8092 long id = mInjector.binderClearCallingIdentity(); 8093 try { 8094 mUserManagerInternal.setUserIcon(userId, icon); 8095 } finally { 8096 mInjector.binderRestoreCallingIdentity(id); 8097 } 8098 } 8099 } 8100 8101 @Override 8102 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 8103 Preconditions.checkNotNull(who, "ComponentName is null"); 8104 synchronized (this) { 8105 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8106 } 8107 final int userId = UserHandle.getCallingUserId(); 8108 8109 long ident = mInjector.binderClearCallingIdentity(); 8110 try { 8111 // disallow disabling the keyguard if a password is currently set 8112 if (disabled && mLockPatternUtils.isSecure(userId)) { 8113 return false; 8114 } 8115 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 8116 } finally { 8117 mInjector.binderRestoreCallingIdentity(ident); 8118 } 8119 return true; 8120 } 8121 8122 @Override 8123 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 8124 int userId = UserHandle.getCallingUserId(); 8125 synchronized (this) { 8126 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8127 DevicePolicyData policy = getUserData(userId); 8128 if (policy.mStatusBarDisabled != disabled) { 8129 if (!setStatusBarDisabledInternal(disabled, userId)) { 8130 return false; 8131 } 8132 policy.mStatusBarDisabled = disabled; 8133 saveSettingsLocked(userId); 8134 } 8135 } 8136 return true; 8137 } 8138 8139 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 8140 long ident = mInjector.binderClearCallingIdentity(); 8141 try { 8142 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 8143 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 8144 if (statusBarService != null) { 8145 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 8146 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 8147 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 8148 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 8149 return true; 8150 } 8151 } catch (RemoteException e) { 8152 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 8153 } finally { 8154 mInjector.binderRestoreCallingIdentity(ident); 8155 } 8156 return false; 8157 } 8158 8159 /** 8160 * We need to update the internal state of whether a user has completed setup once. After 8161 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 8162 * as we don't trust any apps that might try to reset it. 8163 * <p> 8164 * Unfortunately, we don't know which user's setup state was changed, so we write all of 8165 * them. 8166 */ 8167 void updateUserSetupComplete() { 8168 List<UserInfo> users = mUserManager.getUsers(true); 8169 final int N = users.size(); 8170 for (int i = 0; i < N; i++) { 8171 int userHandle = users.get(i).id; 8172 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 8173 userHandle) != 0) { 8174 DevicePolicyData policy = getUserData(userHandle); 8175 if (!policy.mUserSetupComplete) { 8176 policy.mUserSetupComplete = true; 8177 synchronized (this) { 8178 saveSettingsLocked(userHandle); 8179 } 8180 } 8181 } 8182 } 8183 } 8184 8185 private class SetupContentObserver extends ContentObserver { 8186 8187 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 8188 Settings.Secure.USER_SETUP_COMPLETE); 8189 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 8190 Settings.Global.DEVICE_PROVISIONED); 8191 8192 public SetupContentObserver(Handler handler) { 8193 super(handler); 8194 } 8195 8196 void register() { 8197 mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 8198 mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 8199 } 8200 8201 @Override 8202 public void onChange(boolean selfChange, Uri uri) { 8203 if (mUserSetupComplete.equals(uri)) { 8204 updateUserSetupComplete(); 8205 } else if (mDeviceProvisioned.equals(uri)) { 8206 synchronized (DevicePolicyManagerService.this) { 8207 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 8208 // is delayed until device is marked as provisioned. 8209 setDeviceOwnerSystemPropertyLocked(); 8210 } 8211 } 8212 } 8213 } 8214 8215 @VisibleForTesting 8216 final class LocalService extends DevicePolicyManagerInternal { 8217 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 8218 8219 @Override 8220 public List<String> getCrossProfileWidgetProviders(int profileId) { 8221 synchronized (DevicePolicyManagerService.this) { 8222 if (mOwners == null) { 8223 return Collections.emptyList(); 8224 } 8225 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 8226 if (ownerComponent == null) { 8227 return Collections.emptyList(); 8228 } 8229 8230 DevicePolicyData policy = getUserDataUnchecked(profileId); 8231 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 8232 8233 if (admin == null || admin.crossProfileWidgetProviders == null 8234 || admin.crossProfileWidgetProviders.isEmpty()) { 8235 return Collections.emptyList(); 8236 } 8237 8238 return admin.crossProfileWidgetProviders; 8239 } 8240 } 8241 8242 @Override 8243 public void addOnCrossProfileWidgetProvidersChangeListener( 8244 OnCrossProfileWidgetProvidersChangeListener listener) { 8245 synchronized (DevicePolicyManagerService.this) { 8246 if (mWidgetProviderListeners == null) { 8247 mWidgetProviderListeners = new ArrayList<>(); 8248 } 8249 if (!mWidgetProviderListeners.contains(listener)) { 8250 mWidgetProviderListeners.add(listener); 8251 } 8252 } 8253 } 8254 8255 @Override 8256 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 8257 synchronized(DevicePolicyManagerService.this) { 8258 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 8259 } 8260 } 8261 8262 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 8263 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 8264 synchronized (DevicePolicyManagerService.this) { 8265 listeners = new ArrayList<>(mWidgetProviderListeners); 8266 } 8267 final int listenerCount = listeners.size(); 8268 for (int i = 0; i < listenerCount; i++) { 8269 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 8270 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 8271 } 8272 } 8273 8274 @Override 8275 public Intent createPackageSuspendedDialogIntent(String packageName, int userId) { 8276 Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS); 8277 intent.putExtra(Intent.EXTRA_USER_ID, userId); 8278 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 8279 8280 // This method is called from AM with its lock held, so don't take the DPMS lock. 8281 // b/29242568 8282 8283 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 8284 if (profileOwner != null) { 8285 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, profileOwner); 8286 return intent; 8287 } 8288 8289 final Pair<Integer, ComponentName> deviceOwner = 8290 mOwners.getDeviceOwnerUserIdAndComponent(); 8291 if (deviceOwner != null && deviceOwner.first == userId) { 8292 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, deviceOwner.second); 8293 return intent; 8294 } 8295 8296 // We're not specifying the device admin because there isn't one. 8297 return intent; 8298 } 8299 } 8300 8301 /** 8302 * Returns true if specified admin is allowed to limit passwords and has a 8303 * {@code passwordQuality} of at least {@code minPasswordQuality} 8304 */ 8305 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 8306 if (admin.passwordQuality < minPasswordQuality) { 8307 return false; 8308 } 8309 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 8310 } 8311 8312 @Override 8313 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 8314 if (policy != null && !policy.isValid()) { 8315 throw new IllegalArgumentException("Invalid system update policy."); 8316 } 8317 synchronized (this) { 8318 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8319 if (policy == null) { 8320 mOwners.clearSystemUpdatePolicy(); 8321 } else { 8322 mOwners.setSystemUpdatePolicy(policy); 8323 } 8324 mOwners.writeDeviceOwner(); 8325 } 8326 mContext.sendBroadcastAsUser( 8327 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 8328 UserHandle.SYSTEM); 8329 } 8330 8331 @Override 8332 public SystemUpdatePolicy getSystemUpdatePolicy() { 8333 if (UserManager.isDeviceInDemoMode(mContext)) { 8334 // Pretending to have an automatic update policy when the device is in retail demo 8335 // mode. This will allow the device to download and install an ota without 8336 // any user interaction. 8337 return SystemUpdatePolicy.createAutomaticInstallPolicy(); 8338 } 8339 synchronized (this) { 8340 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 8341 if (policy != null && !policy.isValid()) { 8342 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 8343 return null; 8344 } 8345 return policy; 8346 } 8347 } 8348 8349 /** 8350 * Checks if the caller of the method is the device owner app. 8351 * 8352 * @param callerUid UID of the caller. 8353 * @return true if the caller is the device owner app 8354 */ 8355 @VisibleForTesting 8356 boolean isCallerDeviceOwner(int callerUid) { 8357 synchronized (this) { 8358 if (!mOwners.hasDeviceOwner()) { 8359 return false; 8360 } 8361 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 8362 return false; 8363 } 8364 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 8365 .getPackageName(); 8366 final String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 8367 8368 for (String pkg : pkgs) { 8369 if (deviceOwnerPackageName.equals(pkg)) { 8370 return true; 8371 } 8372 } 8373 } 8374 8375 return false; 8376 } 8377 8378 @Override 8379 public void notifyPendingSystemUpdate(long updateReceivedTime) { 8380 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 8381 "Only the system update service can broadcast update information"); 8382 8383 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 8384 Slog.w(LOG_TAG, "Only the system update service in the system user " + 8385 "can broadcast update information."); 8386 return; 8387 } 8388 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 8389 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 8390 updateReceivedTime); 8391 8392 synchronized (this) { 8393 final String deviceOwnerPackage = 8394 mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerComponent().getPackageName() 8395 : null; 8396 if (deviceOwnerPackage == null) { 8397 return; 8398 } 8399 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 8400 8401 ActivityInfo[] receivers = null; 8402 try { 8403 receivers = mContext.getPackageManager().getPackageInfo( 8404 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 8405 } catch (NameNotFoundException e) { 8406 Log.e(LOG_TAG, "Cannot find device owner package", e); 8407 } 8408 if (receivers != null) { 8409 long ident = mInjector.binderClearCallingIdentity(); 8410 try { 8411 for (int i = 0; i < receivers.length; i++) { 8412 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 8413 intent.setComponent(new ComponentName(deviceOwnerPackage, 8414 receivers[i].name)); 8415 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 8416 } 8417 } 8418 } finally { 8419 mInjector.binderRestoreCallingIdentity(ident); 8420 } 8421 } 8422 } 8423 } 8424 8425 @Override 8426 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 8427 int userId = UserHandle.getCallingUserId(); 8428 synchronized (this) { 8429 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8430 DevicePolicyData userPolicy = getUserData(userId); 8431 if (userPolicy.mPermissionPolicy != policy) { 8432 userPolicy.mPermissionPolicy = policy; 8433 saveSettingsLocked(userId); 8434 } 8435 } 8436 } 8437 8438 @Override 8439 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 8440 int userId = UserHandle.getCallingUserId(); 8441 synchronized (this) { 8442 DevicePolicyData userPolicy = getUserData(userId); 8443 return userPolicy.mPermissionPolicy; 8444 } 8445 } 8446 8447 @Override 8448 public boolean setPermissionGrantState(ComponentName admin, String packageName, 8449 String permission, int grantState) throws RemoteException { 8450 UserHandle user = mInjector.binderGetCallingUserHandle(); 8451 synchronized (this) { 8452 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8453 long ident = mInjector.binderClearCallingIdentity(); 8454 try { 8455 if (getTargetSdk(packageName, user.getIdentifier()) 8456 < android.os.Build.VERSION_CODES.M) { 8457 return false; 8458 } 8459 final PackageManager packageManager = mContext.getPackageManager(); 8460 switch (grantState) { 8461 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 8462 packageManager.grantRuntimePermission(packageName, permission, user); 8463 packageManager.updatePermissionFlags(permission, packageName, 8464 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 8465 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 8466 } break; 8467 8468 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 8469 packageManager.revokeRuntimePermission(packageName, 8470 permission, user); 8471 packageManager.updatePermissionFlags(permission, packageName, 8472 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 8473 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 8474 } break; 8475 8476 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 8477 packageManager.updatePermissionFlags(permission, packageName, 8478 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 8479 } break; 8480 } 8481 return true; 8482 } catch (SecurityException se) { 8483 return false; 8484 } finally { 8485 mInjector.binderRestoreCallingIdentity(ident); 8486 } 8487 } 8488 } 8489 8490 @Override 8491 public int getPermissionGrantState(ComponentName admin, String packageName, 8492 String permission) throws RemoteException { 8493 PackageManager packageManager = mContext.getPackageManager(); 8494 8495 UserHandle user = mInjector.binderGetCallingUserHandle(); 8496 synchronized (this) { 8497 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8498 long ident = mInjector.binderClearCallingIdentity(); 8499 try { 8500 int granted = mIPackageManager.checkPermission(permission, 8501 packageName, user.getIdentifier()); 8502 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 8503 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 8504 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 8505 // Not controlled by policy 8506 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 8507 } else { 8508 // Policy controlled so return result based on permission grant state 8509 return granted == PackageManager.PERMISSION_GRANTED 8510 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 8511 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 8512 } 8513 } finally { 8514 mInjector.binderRestoreCallingIdentity(ident); 8515 } 8516 } 8517 } 8518 8519 boolean isPackageInstalledForUser(String packageName, int userHandle) { 8520 try { 8521 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 8522 userHandle); 8523 return (pi != null) && (pi.applicationInfo.flags != 0); 8524 } catch (RemoteException re) { 8525 throw new RuntimeException("Package manager has died", re); 8526 } 8527 } 8528 8529 @Override 8530 public boolean isProvisioningAllowed(String action) { 8531 if (!mHasFeature) { 8532 return false; 8533 } 8534 8535 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8536 if (DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE.equals(action)) { 8537 if (!hasFeatureManagedUsers()) { 8538 return false; 8539 } 8540 synchronized (this) { 8541 if (mOwners.hasDeviceOwner()) { 8542 if (!mInjector.userManagerIsSplitSystemUser()) { 8543 // Only split-system-user systems support managed-profiles in combination with 8544 // device-owner. 8545 return false; 8546 } 8547 if (mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM) { 8548 // Only system device-owner supports managed-profiles. Non-system device-owner 8549 // doesn't. 8550 return false; 8551 } 8552 if (callingUserId == UserHandle.USER_SYSTEM) { 8553 // Managed-profiles cannot be setup on the system user, only regular users. 8554 return false; 8555 } 8556 } 8557 } 8558 if (getProfileOwner(callingUserId) != null) { 8559 // Managed user cannot have a managed profile. 8560 return false; 8561 } 8562 final long ident = mInjector.binderClearCallingIdentity(); 8563 try { 8564 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, true)) { 8565 return false; 8566 } 8567 } finally { 8568 mInjector.binderRestoreCallingIdentity(ident); 8569 } 8570 return true; 8571 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE.equals(action)) { 8572 return isDeviceOwnerProvisioningAllowed(callingUserId); 8573 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_USER.equals(action)) { 8574 if (!hasFeatureManagedUsers()) { 8575 return false; 8576 } 8577 if (!mInjector.userManagerIsSplitSystemUser()) { 8578 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 8579 return false; 8580 } 8581 if (callingUserId == UserHandle.USER_SYSTEM) { 8582 // System user cannot be a managed user. 8583 return false; 8584 } 8585 if (hasUserSetupCompleted(callingUserId)) { 8586 return false; 8587 } 8588 return true; 8589 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE.equals(action)) { 8590 if (!mInjector.userManagerIsSplitSystemUser()) { 8591 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 8592 return false; 8593 } 8594 return isDeviceOwnerProvisioningAllowed(callingUserId); 8595 } 8596 throw new IllegalArgumentException("Unknown provisioning action " + action); 8597 } 8598 8599 /* 8600 * The device owner can only be set before the setup phase of the primary user has completed, 8601 * except for adb command if no accounts or additional users are present on the device. 8602 */ 8603 private synchronized @DeviceOwnerPreConditionCode int checkSetDeviceOwnerPreConditionLocked( 8604 @Nullable ComponentName owner, int deviceOwnerUserId, boolean isAdb) { 8605 if (mOwners.hasDeviceOwner()) { 8606 return CODE_HAS_DEVICE_OWNER; 8607 } 8608 if (mOwners.hasProfileOwner(deviceOwnerUserId)) { 8609 return CODE_USER_HAS_PROFILE_OWNER; 8610 } 8611 if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) { 8612 return CODE_USER_NOT_RUNNING; 8613 } 8614 if (isAdb) { 8615 // if shell command runs after user setup completed check device status. Otherwise, OK. 8616 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 8617 if (!mInjector.userManagerIsSplitSystemUser()) { 8618 if (mUserManager.getUserCount() > 1) { 8619 return CODE_NONSYSTEM_USER_EXISTS; 8620 } 8621 if (hasIncompatibleAccountsLocked(UserHandle.USER_SYSTEM, owner)) { 8622 return CODE_ACCOUNTS_NOT_EMPTY; 8623 } 8624 } else { 8625 // STOPSHIP Do proper check in split user mode 8626 } 8627 } 8628 return CODE_OK; 8629 } else { 8630 if (!mInjector.userManagerIsSplitSystemUser()) { 8631 // In non-split user mode, DO has to be user 0 8632 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) { 8633 return CODE_NOT_SYSTEM_USER; 8634 } 8635 // In non-split user mode, only provision DO before setup wizard completes 8636 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 8637 return CODE_USER_SETUP_COMPLETED; 8638 } 8639 } else { 8640 // STOPSHIP Do proper check in split user mode 8641 } 8642 return CODE_OK; 8643 } 8644 } 8645 8646 private boolean isDeviceOwnerProvisioningAllowed(int deviceOwnerUserId) { 8647 synchronized (this) { 8648 return CODE_OK == checkSetDeviceOwnerPreConditionLocked( 8649 /* owner unknown */ null, deviceOwnerUserId, /* isAdb */ false); 8650 } 8651 } 8652 8653 private boolean hasFeatureManagedUsers() { 8654 try { 8655 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 8656 } catch (RemoteException e) { 8657 return false; 8658 } 8659 } 8660 8661 @Override 8662 public String getWifiMacAddress(ComponentName admin) { 8663 // Make sure caller has DO. 8664 synchronized (this) { 8665 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8666 } 8667 8668 final long ident = mInjector.binderClearCallingIdentity(); 8669 try { 8670 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 8671 if (wifiInfo == null) { 8672 return null; 8673 } 8674 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 8675 } finally { 8676 mInjector.binderRestoreCallingIdentity(ident); 8677 } 8678 } 8679 8680 /** 8681 * Returns the target sdk version number that the given packageName was built for 8682 * in the given user. 8683 */ 8684 private int getTargetSdk(String packageName, int userId) { 8685 final ApplicationInfo ai; 8686 try { 8687 ai = mIPackageManager.getApplicationInfo(packageName, 0, userId); 8688 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 8689 return targetSdkVersion; 8690 } catch (RemoteException e) { 8691 // Shouldn't happen 8692 return 0; 8693 } 8694 } 8695 8696 @Override 8697 public boolean isManagedProfile(ComponentName admin) { 8698 synchronized (this) { 8699 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8700 } 8701 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8702 final UserInfo user = getUserInfo(callingUserId); 8703 return user != null && user.isManagedProfile(); 8704 } 8705 8706 @Override 8707 public boolean isSystemOnlyUser(ComponentName admin) { 8708 synchronized (this) { 8709 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8710 } 8711 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8712 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 8713 } 8714 8715 @Override 8716 public void reboot(ComponentName admin) { 8717 Preconditions.checkNotNull(admin); 8718 // Make sure caller has DO. 8719 synchronized (this) { 8720 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8721 } 8722 long ident = mInjector.binderClearCallingIdentity(); 8723 try { 8724 // Make sure there are no ongoing calls on the device. 8725 if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { 8726 throw new IllegalStateException("Cannot be called with ongoing call on the device"); 8727 } 8728 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 8729 } finally { 8730 mInjector.binderRestoreCallingIdentity(ident); 8731 } 8732 } 8733 8734 @Override 8735 public void setShortSupportMessage(@NonNull ComponentName who, CharSequence message) { 8736 if (!mHasFeature) { 8737 return; 8738 } 8739 Preconditions.checkNotNull(who, "ComponentName is null"); 8740 final int userHandle = mInjector.userHandleGetCallingUserId(); 8741 synchronized (this) { 8742 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8743 mInjector.binderGetCallingUid()); 8744 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 8745 admin.shortSupportMessage = message; 8746 saveSettingsLocked(userHandle); 8747 } 8748 } 8749 } 8750 8751 @Override 8752 public CharSequence getShortSupportMessage(@NonNull ComponentName who) { 8753 if (!mHasFeature) { 8754 return null; 8755 } 8756 Preconditions.checkNotNull(who, "ComponentName is null"); 8757 synchronized (this) { 8758 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8759 mInjector.binderGetCallingUid()); 8760 return admin.shortSupportMessage; 8761 } 8762 } 8763 8764 @Override 8765 public void setLongSupportMessage(@NonNull ComponentName who, CharSequence message) { 8766 if (!mHasFeature) { 8767 return; 8768 } 8769 Preconditions.checkNotNull(who, "ComponentName is null"); 8770 final int userHandle = mInjector.userHandleGetCallingUserId(); 8771 synchronized (this) { 8772 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8773 mInjector.binderGetCallingUid()); 8774 if (!TextUtils.equals(admin.longSupportMessage, message)) { 8775 admin.longSupportMessage = message; 8776 saveSettingsLocked(userHandle); 8777 } 8778 } 8779 } 8780 8781 @Override 8782 public CharSequence getLongSupportMessage(@NonNull ComponentName who) { 8783 if (!mHasFeature) { 8784 return null; 8785 } 8786 Preconditions.checkNotNull(who, "ComponentName is null"); 8787 synchronized (this) { 8788 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8789 mInjector.binderGetCallingUid()); 8790 return admin.longSupportMessage; 8791 } 8792 } 8793 8794 @Override 8795 public CharSequence getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 8796 if (!mHasFeature) { 8797 return null; 8798 } 8799 Preconditions.checkNotNull(who, "ComponentName is null"); 8800 if (!isCallerWithSystemUid()) { 8801 throw new SecurityException("Only the system can query support message for user"); 8802 } 8803 synchronized (this) { 8804 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8805 if (admin != null) { 8806 return admin.shortSupportMessage; 8807 } 8808 } 8809 return null; 8810 } 8811 8812 @Override 8813 public CharSequence getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 8814 if (!mHasFeature) { 8815 return null; 8816 } 8817 Preconditions.checkNotNull(who, "ComponentName is null"); 8818 if (!isCallerWithSystemUid()) { 8819 throw new SecurityException("Only the system can query support message for user"); 8820 } 8821 synchronized (this) { 8822 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8823 if (admin != null) { 8824 return admin.longSupportMessage; 8825 } 8826 } 8827 return null; 8828 } 8829 8830 @Override 8831 public void setOrganizationColor(@NonNull ComponentName who, int color) { 8832 if (!mHasFeature) { 8833 return; 8834 } 8835 Preconditions.checkNotNull(who, "ComponentName is null"); 8836 final int userHandle = mInjector.userHandleGetCallingUserId(); 8837 enforceManagedProfile(userHandle, "set organization color"); 8838 synchronized (this) { 8839 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8840 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8841 admin.organizationColor = color; 8842 saveSettingsLocked(userHandle); 8843 } 8844 } 8845 8846 @Override 8847 public void setOrganizationColorForUser(int color, int userId) { 8848 if (!mHasFeature) { 8849 return; 8850 } 8851 enforceFullCrossUsersPermission(userId); 8852 enforceManageUsers(); 8853 enforceManagedProfile(userId, "set organization color"); 8854 synchronized (this) { 8855 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8856 admin.organizationColor = color; 8857 saveSettingsLocked(userId); 8858 } 8859 } 8860 8861 @Override 8862 public int getOrganizationColor(@NonNull ComponentName who) { 8863 if (!mHasFeature) { 8864 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 8865 } 8866 Preconditions.checkNotNull(who, "ComponentName is null"); 8867 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 8868 synchronized (this) { 8869 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8870 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8871 return admin.organizationColor; 8872 } 8873 } 8874 8875 @Override 8876 public int getOrganizationColorForUser(int userHandle) { 8877 if (!mHasFeature) { 8878 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 8879 } 8880 enforceFullCrossUsersPermission(userHandle); 8881 enforceManagedProfile(userHandle, "get organization color"); 8882 synchronized (this) { 8883 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 8884 return (profileOwner != null) 8885 ? profileOwner.organizationColor 8886 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 8887 } 8888 } 8889 8890 @Override 8891 public void setOrganizationName(@NonNull ComponentName who, CharSequence text) { 8892 if (!mHasFeature) { 8893 return; 8894 } 8895 Preconditions.checkNotNull(who, "ComponentName is null"); 8896 final int userHandle = mInjector.userHandleGetCallingUserId(); 8897 enforceManagedProfile(userHandle, "set organization name"); 8898 synchronized (this) { 8899 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8900 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8901 if (!TextUtils.equals(admin.organizationName, text)) { 8902 admin.organizationName = (text == null || text.length() == 0) 8903 ? null : text.toString(); 8904 saveSettingsLocked(userHandle); 8905 } 8906 } 8907 } 8908 8909 @Override 8910 public CharSequence getOrganizationName(@NonNull ComponentName who) { 8911 if (!mHasFeature) { 8912 return null; 8913 } 8914 Preconditions.checkNotNull(who, "ComponentName is null"); 8915 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 8916 synchronized(this) { 8917 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8918 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8919 return admin.organizationName; 8920 } 8921 } 8922 8923 @Override 8924 public CharSequence getOrganizationNameForUser(int userHandle) { 8925 if (!mHasFeature) { 8926 return null; 8927 } 8928 enforceFullCrossUsersPermission(userHandle); 8929 enforceManagedProfile(userHandle, "get organization name"); 8930 synchronized (this) { 8931 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 8932 return (profileOwner != null) 8933 ? profileOwner.organizationName 8934 : null; 8935 } 8936 } 8937 8938 @Override 8939 public void setAffiliationIds(ComponentName admin, List<String> ids) { 8940 final Set<String> affiliationIds = new ArraySet<String>(ids); 8941 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8942 8943 synchronized (this) { 8944 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8945 getUserData(callingUserId).mAffiliationIds = affiliationIds; 8946 saveSettingsLocked(callingUserId); 8947 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 8948 // Affiliation ids specified by the device owner are additionally stored in 8949 // UserHandle.USER_SYSTEM's DevicePolicyData. 8950 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 8951 saveSettingsLocked(UserHandle.USER_SYSTEM); 8952 } 8953 } 8954 } 8955 8956 @Override 8957 public boolean isAffiliatedUser() { 8958 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8959 8960 synchronized (this) { 8961 if (mOwners.getDeviceOwnerUserId() == callingUserId) { 8962 // The user that the DO is installed on is always affiliated. 8963 return true; 8964 } 8965 final ComponentName profileOwner = getProfileOwner(callingUserId); 8966 if (profileOwner == null 8967 || !profileOwner.getPackageName().equals(mOwners.getDeviceOwnerPackageName())) { 8968 return false; 8969 } 8970 final Set<String> userAffiliationIds = getUserData(callingUserId).mAffiliationIds; 8971 final Set<String> deviceAffiliationIds = 8972 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 8973 for (String id : userAffiliationIds) { 8974 if (deviceAffiliationIds.contains(id)) { 8975 return true; 8976 } 8977 } 8978 } 8979 return false; 8980 } 8981 8982 private synchronized void disableDeviceOwnerManagedSingleUserFeaturesIfNeeded() { 8983 if (!isDeviceOwnerManagedSingleUserDevice()) { 8984 mInjector.securityLogSetLoggingEnabledProperty(false); 8985 Slog.w(LOG_TAG, "Security logging turned off as it's no longer a single user device."); 8986 if (mOwners.hasDeviceOwner()) { 8987 setBackupServiceEnabledInternal(false); 8988 Slog.w(LOG_TAG, "Backup is off as it's a managed device that has more that one user."); 8989 } 8990 } 8991 } 8992 8993 @Override 8994 public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) { 8995 Preconditions.checkNotNull(admin); 8996 ensureDeviceOwnerManagingSingleUser(admin); 8997 8998 synchronized (this) { 8999 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 9000 return; 9001 } 9002 mInjector.securityLogSetLoggingEnabledProperty(enabled); 9003 if (enabled) { 9004 mSecurityLogMonitor.start(); 9005 } else { 9006 mSecurityLogMonitor.stop(); 9007 } 9008 } 9009 } 9010 9011 @Override 9012 public boolean isSecurityLoggingEnabled(ComponentName admin) { 9013 Preconditions.checkNotNull(admin); 9014 synchronized (this) { 9015 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9016 return mInjector.securityLogGetLoggingEnabledProperty(); 9017 } 9018 } 9019 9020 @Override 9021 public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) { 9022 Preconditions.checkNotNull(admin); 9023 ensureDeviceOwnerManagingSingleUser(admin); 9024 9025 if (!mContext.getResources().getBoolean(R.bool.config_supportPreRebootSecurityLogs)) { 9026 return null; 9027 } 9028 9029 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 9030 try { 9031 SecurityLog.readPreviousEvents(output); 9032 return new ParceledListSlice<SecurityEvent>(output); 9033 } catch (IOException e) { 9034 Slog.w(LOG_TAG, "Fail to read previous events" , e); 9035 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 9036 } 9037 } 9038 9039 @Override 9040 public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) { 9041 Preconditions.checkNotNull(admin); 9042 ensureDeviceOwnerManagingSingleUser(admin); 9043 9044 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 9045 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 9046 } 9047 9048 private void enforceCanManageDeviceAdmin() { 9049 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 9050 null); 9051 } 9052 9053 private void enforceCanManageProfileAndDeviceOwners() { 9054 mContext.enforceCallingOrSelfPermission( 9055 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 9056 } 9057 9058 @Override 9059 public boolean isUninstallInQueue(final String packageName) { 9060 enforceCanManageDeviceAdmin(); 9061 final int userId = mInjector.userHandleGetCallingUserId(); 9062 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 9063 synchronized (this) { 9064 return mPackagesToRemove.contains(packageUserPair); 9065 } 9066 } 9067 9068 @Override 9069 public void uninstallPackageWithActiveAdmins(final String packageName) { 9070 enforceCanManageDeviceAdmin(); 9071 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 9072 9073 final int userId = mInjector.userHandleGetCallingUserId(); 9074 9075 enforceUserUnlocked(userId); 9076 9077 final ComponentName profileOwner = getProfileOwner(userId); 9078 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 9079 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 9080 } 9081 9082 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 9083 if (getDeviceOwnerUserId() == userId && deviceOwner != null 9084 && packageName.equals(deviceOwner.getPackageName())) { 9085 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 9086 } 9087 9088 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 9089 synchronized (this) { 9090 mPackagesToRemove.add(packageUserPair); 9091 } 9092 9093 // All active admins on the user. 9094 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 9095 9096 // Active admins in the target package. 9097 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 9098 if (allActiveAdmins != null) { 9099 for (ComponentName activeAdmin : allActiveAdmins) { 9100 if (packageName.equals(activeAdmin.getPackageName())) { 9101 packageActiveAdmins.add(activeAdmin); 9102 removeActiveAdmin(activeAdmin, userId); 9103 } 9104 } 9105 } 9106 if (packageActiveAdmins.size() == 0) { 9107 startUninstallIntent(packageName, userId); 9108 } else { 9109 mHandler.postDelayed(new Runnable() { 9110 @Override 9111 public void run() { 9112 for (ComponentName activeAdmin : packageActiveAdmins) { 9113 removeAdminArtifacts(activeAdmin, userId); 9114 } 9115 startUninstallIntent(packageName, userId); 9116 } 9117 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 9118 } 9119 } 9120 9121 @Override 9122 public boolean isDeviceProvisioned() { 9123 return !TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT)); 9124 } 9125 9126 private void removePackageIfRequired(final String packageName, final int userId) { 9127 if (!packageHasActiveAdmins(packageName, userId)) { 9128 // Will not do anything if uninstall was not requested or was already started. 9129 startUninstallIntent(packageName, userId); 9130 } 9131 } 9132 9133 private void startUninstallIntent(final String packageName, final int userId) { 9134 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 9135 synchronized (this) { 9136 if (!mPackagesToRemove.contains(packageUserPair)) { 9137 // Do nothing if uninstall was not requested or was already started. 9138 return; 9139 } 9140 mPackagesToRemove.remove(packageUserPair); 9141 } 9142 try { 9143 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 9144 // Package does not exist. Nothing to do. 9145 return; 9146 } 9147 } catch (RemoteException re) { 9148 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 9149 } 9150 9151 try { // force stop the package before uninstalling 9152 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 9153 } catch (RemoteException re) { 9154 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 9155 } 9156 final Uri packageURI = Uri.parse("package:" + packageName); 9157 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 9158 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 9159 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 9160 } 9161 9162 /** 9163 * Removes the admin from the policy. Ideally called after the admin's 9164 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 9165 * 9166 * @param adminReceiver The admin to remove 9167 * @param userHandle The user for which this admin has to be removed. 9168 */ 9169 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 9170 synchronized (this) { 9171 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 9172 if (admin == null) { 9173 return; 9174 } 9175 final DevicePolicyData policy = getUserData(userHandle); 9176 final boolean doProxyCleanup = admin.info.usesPolicy( 9177 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 9178 policy.mAdminList.remove(admin); 9179 policy.mAdminMap.remove(adminReceiver); 9180 validatePasswordOwnerLocked(policy); 9181 if (doProxyCleanup) { 9182 resetGlobalProxyLocked(policy); 9183 } 9184 saveSettingsLocked(userHandle); 9185 updateMaximumTimeToLockLocked(userHandle); 9186 policy.mRemovingAdmins.remove(adminReceiver); 9187 9188 Slog.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle); 9189 } 9190 // The removed admin might have disabled camera, so update user 9191 // restrictions. 9192 pushUserRestrictions(userHandle); 9193 } 9194 9195 @Override 9196 public void setDeviceProvisioningConfigApplied() { 9197 enforceManageUsers(); 9198 synchronized (this) { 9199 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 9200 policy.mDeviceProvisioningConfigApplied = true; 9201 saveSettingsLocked(UserHandle.USER_SYSTEM); 9202 } 9203 } 9204 9205 @Override 9206 public boolean isDeviceProvisioningConfigApplied() { 9207 enforceManageUsers(); 9208 synchronized (this) { 9209 final DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 9210 return policy.mDeviceProvisioningConfigApplied; 9211 } 9212 } 9213 9214 /** 9215 * Return true if a given user has any accounts that'll prevent installing a device or profile 9216 * owner {@code owner}. 9217 * - If the user has no accounts, then return false. 9218 * - Otherwise, if the owner is unknown (== null), or is not test-only, then return true. 9219 * - Otherwise, if there's any account that does not have ..._ALLOWED, or does have 9220 * ..._DISALLOWED, return true. 9221 * - Otherwise return false. 9222 */ 9223 private boolean hasIncompatibleAccountsLocked(int userId, @Nullable ComponentName owner) { 9224 final long token = mInjector.binderClearCallingIdentity(); 9225 try { 9226 final AccountManager am = AccountManager.get(mContext); 9227 final Account accounts[] = am.getAccountsAsUser(userId); 9228 if (accounts.length == 0) { 9229 return false; 9230 } 9231 final String[] feature_allow = 9232 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_ALLOWED }; 9233 final String[] feature_disallow = 9234 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_DISALLOWED }; 9235 9236 // Even if we find incompatible accounts along the way, we still check all accounts 9237 // for logging. 9238 boolean compatible = true; 9239 for (Account account : accounts) { 9240 if (hasAccountFeatures(am, account, feature_disallow)) { 9241 Log.e(LOG_TAG, account + " has " + feature_disallow[0]); 9242 compatible = false; 9243 } 9244 if (!hasAccountFeatures(am, account, feature_allow)) { 9245 Log.e(LOG_TAG, account + " doesn't have " + feature_allow[0]); 9246 compatible = false; 9247 } 9248 } 9249 if (compatible) { 9250 Log.w(LOG_TAG, "All accounts are compatible"); 9251 } else { 9252 Log.e(LOG_TAG, "Found incompatible accounts"); 9253 } 9254 9255 // Then check if the owner is test-only. 9256 String log; 9257 if (owner == null) { 9258 // Owner is unknown. Suppose it's not test-only 9259 compatible = false; 9260 log = "Only test-only device/profile owner can be installed with accounts"; 9261 } else if (isAdminTestOnlyLocked(owner, userId)) { 9262 if (compatible) { 9263 log = "Installing test-only owner " + owner; 9264 } else { 9265 log = "Can't install test-only owner " + owner + " with incompatible accounts"; 9266 } 9267 } else { 9268 compatible = false; 9269 log = "Can't install non test-only owner " + owner + " with accounts"; 9270 } 9271 if (compatible) { 9272 Log.w(LOG_TAG, log); 9273 } else { 9274 Log.e(LOG_TAG, log); 9275 } 9276 return !compatible; 9277 } finally { 9278 mInjector.binderRestoreCallingIdentity(token); 9279 } 9280 } 9281 9282 private boolean hasAccountFeatures(AccountManager am, Account account, String[] features) { 9283 try { 9284 return am.hasFeatures(account, features, null, null).getResult(); 9285 } catch (Exception e) { 9286 Log.w(LOG_TAG, "Failed to get account feature", e); 9287 return false; 9288 } 9289 } 9290 9291 @Override 9292 public void setBackupServiceEnabled(ComponentName admin, boolean enabled) { 9293 Preconditions.checkNotNull(admin); 9294 if (!mHasFeature) { 9295 return; 9296 } 9297 ensureDeviceOwnerManagingSingleUser(admin); 9298 setBackupServiceEnabledInternal(enabled); 9299 } 9300 9301 private synchronized void setBackupServiceEnabledInternal(boolean enabled) { 9302 long ident = mInjector.binderClearCallingIdentity(); 9303 try { 9304 IBackupManager ibm = mInjector.getIBackupManager(); 9305 if (ibm != null) { 9306 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, enabled); 9307 } 9308 } catch (RemoteException e) { 9309 throw new IllegalStateException( 9310 "Failed " + (enabled ? "" : "de") + "activating backup service.", e); 9311 } finally { 9312 mInjector.binderRestoreCallingIdentity(ident); 9313 } 9314 } 9315 9316 @Override 9317 public boolean isBackupServiceEnabled(ComponentName admin) { 9318 Preconditions.checkNotNull(admin); 9319 if (!mHasFeature) { 9320 return true; 9321 } 9322 synchronized (this) { 9323 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9324 try { 9325 IBackupManager ibm = mInjector.getIBackupManager(); 9326 return ibm != null && ibm.isBackupServiceActive(UserHandle.USER_SYSTEM); 9327 } catch (RemoteException e) { 9328 throw new IllegalStateException("Failed requesting backup service state.", e); 9329 } 9330 } 9331 } 9332} 9333