DevicePolicyManagerService.java revision d04525214b9a999339cd553a22b95b52debecde5
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; 24import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 25import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 26import static org.xmlpull.v1.XmlPullParser.END_TAG; 27import static org.xmlpull.v1.XmlPullParser.TEXT; 28 29import com.google.android.collect.Sets; 30 31import android.Manifest.permission; 32import android.accessibilityservice.AccessibilityServiceInfo; 33import android.accounts.AccountManager; 34import android.annotation.NonNull; 35import android.app.Activity; 36import android.app.ActivityManager; 37import android.app.ActivityManagerNative; 38import android.app.AlarmManager; 39import android.app.AppGlobals; 40import android.app.IActivityManager; 41import android.app.Notification; 42import android.app.NotificationManager; 43import android.app.PendingIntent; 44import android.app.StatusBarManager; 45import android.app.admin.DeviceAdminInfo; 46import android.app.admin.DeviceAdminReceiver; 47import android.app.admin.DevicePolicyManager; 48import android.app.admin.DevicePolicyManagerInternal; 49import android.app.admin.IDevicePolicyManager; 50import android.app.admin.SystemUpdatePolicy; 51import android.app.backup.IBackupManager; 52import android.auditing.SecurityLog; 53import android.auditing.SecurityLog.SecurityEvent; 54import android.content.BroadcastReceiver; 55import android.content.ComponentName; 56import android.content.ContentResolver; 57import android.content.Context; 58import android.content.Intent; 59import android.content.IntentFilter; 60import android.content.pm.ActivityInfo; 61import android.content.pm.ApplicationInfo; 62import android.content.pm.IPackageManager; 63import android.content.pm.PackageInfo; 64import android.content.pm.PackageManager; 65import android.content.pm.PackageManager.NameNotFoundException; 66import android.content.pm.PackageManagerInternal; 67import android.content.pm.ParceledListSlice; 68import android.content.pm.ResolveInfo; 69import android.content.pm.ServiceInfo; 70import android.content.pm.UserInfo; 71import android.database.ContentObserver; 72import android.graphics.Bitmap; 73import android.graphics.Color; 74import android.media.AudioManager; 75import android.media.IAudioService; 76import android.net.ConnectivityManager; 77import android.net.ProxyInfo; 78import android.net.Uri; 79import android.net.wifi.WifiInfo; 80import android.net.wifi.WifiManager; 81import android.os.AsyncTask; 82import android.os.Binder; 83import android.os.Build; 84import android.os.Bundle; 85import android.os.Environment; 86import android.os.FileUtils; 87import android.os.Handler; 88import android.os.IBinder; 89import android.os.Looper; 90import android.os.ParcelFileDescriptor; 91import android.os.PersistableBundle; 92import android.os.PowerManager; 93import android.os.PowerManagerInternal; 94import android.os.Process; 95import android.os.RecoverySystem; 96import android.os.RemoteCallback; 97import android.os.RemoteException; 98import android.os.ServiceManager; 99import android.os.SystemClock; 100import android.os.SystemProperties; 101import android.os.UserHandle; 102import android.os.UserManager; 103import android.os.UserManagerInternal; 104import android.os.storage.StorageManager; 105import android.provider.ContactsContract.QuickContact; 106import android.provider.ContactsInternal; 107import android.provider.Settings; 108import android.security.Credentials; 109import android.security.IKeyChainAliasCallback; 110import android.security.IKeyChainService; 111import android.security.KeyChain; 112import android.security.KeyChain.KeyChainConnection; 113import android.service.persistentdata.PersistentDataBlockManager; 114import android.text.TextUtils; 115import android.util.ArrayMap; 116import android.util.ArraySet; 117import android.util.Log; 118import android.util.Pair; 119import android.util.Slog; 120import android.util.SparseArray; 121import android.util.Xml; 122import android.view.IWindowManager; 123import android.view.accessibility.AccessibilityManager; 124import android.view.accessibility.IAccessibilityManager; 125import android.view.inputmethod.InputMethodInfo; 126import android.view.inputmethod.InputMethodManager; 127 128import com.android.internal.R; 129import com.android.internal.annotations.VisibleForTesting; 130import com.android.internal.statusbar.IStatusBarService; 131import com.android.internal.util.FastXmlSerializer; 132import com.android.internal.util.JournaledFile; 133import com.android.internal.util.Preconditions; 134import com.android.internal.util.XmlUtils; 135import com.android.internal.widget.LockPatternUtils; 136import com.android.server.LocalServices; 137import com.android.server.SystemService; 138import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 139import com.android.server.pm.UserRestrictionsUtils; 140 141import org.xmlpull.v1.XmlPullParser; 142import org.xmlpull.v1.XmlPullParserException; 143import org.xmlpull.v1.XmlSerializer; 144 145import java.io.ByteArrayInputStream; 146import java.io.File; 147import java.io.FileDescriptor; 148import java.io.FileInputStream; 149import java.io.FileNotFoundException; 150import java.io.FileOutputStream; 151import java.io.IOException; 152import java.io.PrintWriter; 153import java.nio.charset.StandardCharsets; 154import java.security.cert.CertificateException; 155import java.security.cert.CertificateFactory; 156import java.security.cert.X509Certificate; 157import java.text.DateFormat; 158import java.util.ArrayList; 159import java.util.Arrays; 160import java.util.Collections; 161import java.util.Date; 162import java.util.List; 163import java.util.Map.Entry; 164import java.util.Set; 165import java.util.concurrent.atomic.AtomicBoolean; 166 167/** 168 * Implementation of the device policy APIs. 169 */ 170public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 171 172 private static final String LOG_TAG = "DevicePolicyManagerService"; 173 174 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 175 176 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 177 178 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 179 180 private static final String TAG_STATUS_BAR = "statusbar"; 181 182 private static final String ATTR_DISABLED = "disabled"; 183 184 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 185 "do-not-ask-credentials-on-boot"; 186 187 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 188 189 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 190 191 private static final String ATTR_VALUE = "value"; 192 193 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 194 195 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 196 197 private static final long MS_PER_DAY = 86400 * 1000; 198 199 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 200 201 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 202 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 203 204 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 205 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 206 207 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 208 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 209 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 210 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 211 212 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 213 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 214 = "application-restrictions-manager"; 215 216 /** 217 * System property whose value is either "true" or "false", indicating whether 218 */ 219 private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner"; 220 221 private static final int STATUS_BAR_DISABLE_MASK = 222 StatusBarManager.DISABLE_EXPAND | 223 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 224 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 225 StatusBarManager.DISABLE_SEARCH; 226 227 private static final int STATUS_BAR_DISABLE2_MASK = 228 StatusBarManager.DISABLE2_QUICK_SETTINGS; 229 230 private static final Set<String> SECURE_SETTINGS_WHITELIST; 231 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 232 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 233 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 234 static { 235 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 236 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 237 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 238 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 239 240 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 241 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 242 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 243 244 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 245 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 246 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 247 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 248 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 249 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 250 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 251 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 252 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 253 254 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 255 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 256 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 257 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 258 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 259 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 260 } 261 262 /** 263 * Keyguard features that when set on a managed profile that doesn't have its own challenge will 264 * affect the profile's parent user. These can also be set on the managed profile's parent DPM 265 * instance. 266 */ 267 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 268 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 269 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 270 271 /** 272 * Keyguard features that when set on a profile affect the profile content or challenge only. 273 * These cannot be set on the managed profile's parent DPM instance 274 */ 275 private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY = 276 DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 277 278 /** Keyguard features that are allowed to be set on a managed profile */ 279 private static final int PROFILE_KEYGUARD_FEATURES = 280 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY; 281 282 private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000; 283 284 final Context mContext; 285 final Injector mInjector; 286 final IPackageManager mIPackageManager; 287 final UserManager mUserManager; 288 final UserManagerInternal mUserManagerInternal; 289 private final LockPatternUtils mLockPatternUtils; 290 291 /** 292 * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p 293 * is requested for user u. 294 */ 295 private final Set<Pair<String, Integer>> mPackagesToRemove = 296 new ArraySet<Pair<String, Integer>>(); 297 298 final LocalService mLocalService; 299 300 // Stores and loads state on device and profile owners. 301 @VisibleForTesting 302 final Owners mOwners; 303 304 private final Binder mToken = new Binder(); 305 306 /** 307 * Whether or not device admin feature is supported. If it isn't return defaults for all 308 * public methods. 309 */ 310 boolean mHasFeature; 311 312 private final SecurityLogMonitor mSecurityLogMonitor; 313 314 private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean(); 315 private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean(); 316 317 private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() { 318 @Override 319 public void run() { 320 if(mRemoteBugreportServiceIsActive.get()) { 321 onBugreportFailed(); 322 } 323 } 324 }; 325 326 private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() { 327 328 @Override 329 public void onReceive(Context context, Intent intent) { 330 if (RemoteBugreportUtils.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction()) 331 && mRemoteBugreportServiceIsActive.get()) { 332 onBugreportFinished(intent); 333 } 334 } 335 }; 336 337 private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() { 338 339 @Override 340 public void onReceive(Context context, Intent intent) { 341 String action = intent.getAction(); 342 mInjector.getNotificationManager().cancel(LOG_TAG, 343 RemoteBugreportUtils.NOTIFICATION_ID); 344 if (RemoteBugreportUtils.ACTION_REMOTE_BUGREPORT_SHARING_ACCEPTED.equals(action)) { 345 onBugreportSharingAccepted(); 346 } else if (RemoteBugreportUtils.ACTION_REMOTE_BUGREPORT_SHARING_DECLINED 347 .equals(action)) { 348 onBugreportSharingDeclined(); 349 } 350 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 351 } 352 }; 353 354 public static final class Lifecycle extends SystemService { 355 private DevicePolicyManagerService mService; 356 357 public Lifecycle(Context context) { 358 super(context); 359 mService = new DevicePolicyManagerService(context); 360 } 361 362 @Override 363 public void onStart() { 364 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 365 } 366 367 @Override 368 public void onBootPhase(int phase) { 369 mService.systemReady(phase); 370 } 371 372 @Override 373 public void onStartUser(int userHandle) { 374 mService.onStartUser(userHandle); 375 } 376 } 377 378 public static class DevicePolicyData { 379 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 380 int mActivePasswordLength = 0; 381 int mActivePasswordUpperCase = 0; 382 int mActivePasswordLowerCase = 0; 383 int mActivePasswordLetters = 0; 384 int mActivePasswordNumeric = 0; 385 int mActivePasswordSymbols = 0; 386 int mActivePasswordNonLetter = 0; 387 int mFailedPasswordAttempts = 0; 388 389 int mUserHandle; 390 int mPasswordOwner = -1; 391 long mLastMaximumTimeToLock = -1; 392 boolean mUserSetupComplete = false; 393 int mUserProvisioningState; 394 int mPermissionPolicy; 395 396 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 397 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 398 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 399 400 // This is the list of component allowed to start lock task mode. 401 List<String> mLockTaskPackages = new ArrayList<>(); 402 403 boolean mStatusBarDisabled = false; 404 405 ComponentName mRestrictionsProvider; 406 407 String mDelegatedCertInstallerPackage; 408 409 boolean doNotAskCredentialsOnBoot = false; 410 411 String mApplicationRestrictionsManagingPackage; 412 413 Set<String> mAffiliationIds = new ArraySet<>(); 414 415 // Used for initialization of users created by createAndManageUsers. 416 boolean mAdminBroadcastPending = false; 417 PersistableBundle mInitBundle = null; 418 419 public DevicePolicyData(int userHandle) { 420 mUserHandle = userHandle; 421 } 422 } 423 424 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 425 426 final Handler mHandler; 427 428 BroadcastReceiver mReceiver = new BroadcastReceiver() { 429 @Override 430 public void onReceive(Context context, Intent intent) { 431 final String action = intent.getAction(); 432 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 433 getSendingUserId()); 434 435 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 436 && userHandle == mOwners.getDeviceOwnerUserId() 437 && getDeviceOwnerRemoteBugreportUri() != null) { 438 IntentFilter filterConsent = new IntentFilter(); 439 filterConsent.addAction( 440 RemoteBugreportUtils.ACTION_REMOTE_BUGREPORT_SHARING_DECLINED); 441 filterConsent.addAction( 442 RemoteBugreportUtils.ACTION_REMOTE_BUGREPORT_SHARING_ACCEPTED); 443 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 444 mInjector.getNotificationManager().notify(LOG_TAG, 445 RemoteBugreportUtils.NOTIFICATION_ID, 446 RemoteBugreportUtils.buildNotification(mContext, 447 RemoteBugreportUtils.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED)); 448 } 449 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 450 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 451 if (VERBOSE_LOG) { 452 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 453 + action + " for user " + userHandle); 454 } 455 mHandler.post(new Runnable() { 456 @Override 457 public void run() { 458 handlePasswordExpirationNotification(userHandle); 459 } 460 }); 461 } 462 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 463 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 464 new MonitoringCertNotificationTask().execute(intent); 465 } 466 if (Intent.ACTION_USER_ADDED.equals(action)) { 467 disableDeviceLoggingIfNotCompliant(); 468 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 469 disableDeviceLoggingIfNotCompliant(); 470 removeUserData(userHandle); 471 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 472 synchronized (DevicePolicyManagerService.this) { 473 // Reset the policy data 474 mUserData.remove(userHandle); 475 sendAdminEnabledBroadcastLocked(userHandle); 476 } 477 handlePackagesChanged(null /* check all admins */, userHandle); 478 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 479 handlePackagesChanged(null /* check all admins */, userHandle); 480 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 481 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 482 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 483 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 484 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 485 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 486 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 487 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 488 clearWipeProfileNotification(); 489 } 490 } 491 }; 492 493 static class ActiveAdmin { 494 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 495 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 496 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 497 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 498 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 499 = "disable-bt-contacts-sharing"; 500 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 501 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 502 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 503 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 504 private static final String TAG_ACCOUNT_TYPE = "account-type"; 505 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 506 = "permitted-accessiblity-services"; 507 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 508 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 509 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 510 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 511 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 512 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 513 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 514 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 515 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 516 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 517 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 518 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 519 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 520 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 521 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 522 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 523 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 524 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 525 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 526 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 527 private static final String ATTR_VALUE = "value"; 528 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 529 private static final String TAG_POLICIES = "policies"; 530 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 531 "cross-profile-widget-providers"; 532 private static final String TAG_PROVIDER = "provider"; 533 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 534 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 535 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 536 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 537 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 538 private static final String TAG_PARENT_ADMIN = "parent-admin"; 539 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 540 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 541 542 final DeviceAdminInfo info; 543 544 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 545 546 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 547 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 548 549 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 550 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 551 552 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 553 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 554 555 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 556 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 557 558 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 559 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 560 561 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 562 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 563 564 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 565 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 566 567 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 568 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 569 570 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 571 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 572 573 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 574 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 575 576 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 577 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 578 579 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 580 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 581 582 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 583 584 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 585 586 boolean encryptionRequested = false; 587 boolean disableCamera = false; 588 boolean disableCallerId = false; 589 boolean disableContactsSearch = false; 590 boolean disableBluetoothContactSharing = true; 591 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 592 boolean requireAutoTime = false; // Can only be set by a device owner. 593 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 594 595 ActiveAdmin parentAdmin; 596 final boolean isParent; 597 598 static class TrustAgentInfo { 599 public PersistableBundle options; 600 TrustAgentInfo(PersistableBundle bundle) { 601 options = bundle; 602 } 603 } 604 605 Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 606 607 // The list of permitted accessibility services package namesas set by a profile 608 // or device owner. Null means all accessibility services are allowed, empty means 609 // none except system services are allowed. 610 List<String> permittedAccessiblityServices; 611 612 // The list of permitted input methods package names as set by a profile or device owner. 613 // Null means all input methods are allowed, empty means none except system imes are 614 // allowed. 615 List<String> permittedInputMethods; 616 617 // List of package names to keep cached. 618 List<String> keepUninstalledPackages; 619 620 // TODO: review implementation decisions with frameworks team 621 boolean specifiesGlobalProxy = false; 622 String globalProxySpec = null; 623 String globalProxyExclusionList = null; 624 625 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 626 627 List<String> crossProfileWidgetProviders; 628 629 Bundle userRestrictions; 630 631 // Support text provided by the admin to display to the user. 632 String shortSupportMessage = null; 633 String longSupportMessage = null; 634 635 // Background color of confirm credentials screen. Default: gray. 636 static final int DEF_ORGANIZATION_COLOR = Color.GRAY; 637 int organizationColor = DEF_ORGANIZATION_COLOR; 638 639 // Default title of confirm credentials screen 640 String organizationName = null; 641 642 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 643 info = _info; 644 isParent = parent; 645 } 646 647 ActiveAdmin getParentActiveAdmin() { 648 Preconditions.checkState(!isParent); 649 650 if (parentAdmin == null) { 651 parentAdmin = new ActiveAdmin(info, /* parent */ true); 652 } 653 return parentAdmin; 654 } 655 656 boolean hasParentActiveAdmin() { 657 return parentAdmin != null; 658 } 659 660 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 661 662 public UserHandle getUserHandle() { 663 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 664 } 665 666 void writeToXml(XmlSerializer out) 667 throws IllegalArgumentException, IllegalStateException, IOException { 668 out.startTag(null, TAG_POLICIES); 669 info.writePoliciesToXml(out); 670 out.endTag(null, TAG_POLICIES); 671 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 672 out.startTag(null, TAG_PASSWORD_QUALITY); 673 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 674 out.endTag(null, TAG_PASSWORD_QUALITY); 675 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 676 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 677 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 678 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 679 } 680 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 681 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 682 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 683 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 684 } 685 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 686 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 687 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 688 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 689 } 690 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 691 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 692 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 693 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 694 } 695 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 696 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 697 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 698 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 699 } 700 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 701 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 702 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 703 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 704 } 705 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 706 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 707 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 708 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 709 } 710 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 711 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 712 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 713 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 714 } 715 } 716 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 717 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 718 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 719 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 720 } 721 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 722 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 723 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 724 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 725 } 726 if (specifiesGlobalProxy) { 727 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 728 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 729 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 730 if (globalProxySpec != null) { 731 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 732 out.attribute(null, ATTR_VALUE, globalProxySpec); 733 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 734 } 735 if (globalProxyExclusionList != null) { 736 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 737 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 738 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 739 } 740 } 741 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 742 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 743 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 744 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 745 } 746 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 747 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 748 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 749 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 750 } 751 if (encryptionRequested) { 752 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 753 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 754 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 755 } 756 if (disableCamera) { 757 out.startTag(null, TAG_DISABLE_CAMERA); 758 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 759 out.endTag(null, TAG_DISABLE_CAMERA); 760 } 761 if (disableCallerId) { 762 out.startTag(null, TAG_DISABLE_CALLER_ID); 763 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 764 out.endTag(null, TAG_DISABLE_CALLER_ID); 765 } 766 if (disableContactsSearch) { 767 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 768 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 769 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 770 } 771 if (!disableBluetoothContactSharing) { 772 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 773 out.attribute(null, ATTR_VALUE, 774 Boolean.toString(disableBluetoothContactSharing)); 775 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 776 } 777 if (disableScreenCapture) { 778 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 779 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 780 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 781 } 782 if (requireAutoTime) { 783 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 784 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 785 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 786 } 787 if (forceEphemeralUsers) { 788 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 789 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 790 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 791 } 792 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 793 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 794 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 795 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 796 } 797 if (!accountTypesWithManagementDisabled.isEmpty()) { 798 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 799 for (String ac : accountTypesWithManagementDisabled) { 800 out.startTag(null, TAG_ACCOUNT_TYPE); 801 out.attribute(null, ATTR_VALUE, ac); 802 out.endTag(null, TAG_ACCOUNT_TYPE); 803 } 804 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 805 } 806 if (!trustAgentInfos.isEmpty()) { 807 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 808 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 809 for (Entry<String, TrustAgentInfo> entry : set) { 810 TrustAgentInfo trustAgentInfo = entry.getValue(); 811 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 812 out.attribute(null, ATTR_VALUE, entry.getKey()); 813 if (trustAgentInfo.options != null) { 814 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 815 try { 816 trustAgentInfo.options.saveToXml(out); 817 } catch (XmlPullParserException e) { 818 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 819 } 820 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 821 } 822 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 823 } 824 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 825 } 826 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 827 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 828 final int providerCount = crossProfileWidgetProviders.size(); 829 for (int i = 0; i < providerCount; i++) { 830 String provider = crossProfileWidgetProviders.get(i); 831 out.startTag(null, TAG_PROVIDER); 832 out.attribute(null, ATTR_VALUE, provider); 833 out.endTag(null, TAG_PROVIDER); 834 } 835 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 836 } 837 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 838 permittedAccessiblityServices); 839 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 840 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 841 if (hasUserRestrictions()) { 842 UserRestrictionsUtils.writeRestrictions( 843 out, userRestrictions, TAG_USER_RESTRICTIONS); 844 } 845 if (!TextUtils.isEmpty(shortSupportMessage)) { 846 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 847 out.text(shortSupportMessage); 848 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 849 } 850 if (!TextUtils.isEmpty(longSupportMessage)) { 851 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 852 out.text(longSupportMessage); 853 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 854 } 855 if (parentAdmin != null) { 856 out.startTag(null, TAG_PARENT_ADMIN); 857 parentAdmin.writeToXml(out); 858 out.endTag(null, TAG_PARENT_ADMIN); 859 } 860 if (organizationColor != DEF_ORGANIZATION_COLOR) { 861 out.startTag(null, TAG_ORGANIZATION_COLOR); 862 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 863 out.endTag(null, TAG_ORGANIZATION_COLOR); 864 } 865 if (organizationName != null) { 866 out.startTag(null, TAG_ORGANIZATION_NAME); 867 out.text(organizationName); 868 out.endTag(null, TAG_ORGANIZATION_NAME); 869 } 870 } 871 872 void writePackageListToXml(XmlSerializer out, String outerTag, 873 List<String> packageList) 874 throws IllegalArgumentException, IllegalStateException, IOException { 875 if (packageList == null) { 876 return; 877 } 878 879 out.startTag(null, outerTag); 880 for (String packageName : packageList) { 881 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 882 out.attribute(null, ATTR_VALUE, packageName); 883 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 884 } 885 out.endTag(null, outerTag); 886 } 887 888 void readFromXml(XmlPullParser parser) 889 throws XmlPullParserException, IOException { 890 int outerDepth = parser.getDepth(); 891 int type; 892 while ((type=parser.next()) != END_DOCUMENT 893 && (type != END_TAG || parser.getDepth() > outerDepth)) { 894 if (type == END_TAG || type == TEXT) { 895 continue; 896 } 897 String tag = parser.getName(); 898 if (TAG_POLICIES.equals(tag)) { 899 info.readPoliciesFromXml(parser); 900 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 901 passwordQuality = Integer.parseInt( 902 parser.getAttributeValue(null, ATTR_VALUE)); 903 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 904 minimumPasswordLength = Integer.parseInt( 905 parser.getAttributeValue(null, ATTR_VALUE)); 906 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 907 passwordHistoryLength = Integer.parseInt( 908 parser.getAttributeValue(null, ATTR_VALUE)); 909 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 910 minimumPasswordUpperCase = Integer.parseInt( 911 parser.getAttributeValue(null, ATTR_VALUE)); 912 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 913 minimumPasswordLowerCase = Integer.parseInt( 914 parser.getAttributeValue(null, ATTR_VALUE)); 915 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 916 minimumPasswordLetters = Integer.parseInt( 917 parser.getAttributeValue(null, ATTR_VALUE)); 918 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 919 minimumPasswordNumeric = Integer.parseInt( 920 parser.getAttributeValue(null, ATTR_VALUE)); 921 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 922 minimumPasswordSymbols = Integer.parseInt( 923 parser.getAttributeValue(null, ATTR_VALUE)); 924 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 925 minimumPasswordNonLetter = Integer.parseInt( 926 parser.getAttributeValue(null, ATTR_VALUE)); 927 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 928 maximumTimeToUnlock = Long.parseLong( 929 parser.getAttributeValue(null, ATTR_VALUE)); 930 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 931 maximumFailedPasswordsForWipe = Integer.parseInt( 932 parser.getAttributeValue(null, ATTR_VALUE)); 933 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 934 specifiesGlobalProxy = Boolean.parseBoolean( 935 parser.getAttributeValue(null, ATTR_VALUE)); 936 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 937 globalProxySpec = 938 parser.getAttributeValue(null, ATTR_VALUE); 939 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 940 globalProxyExclusionList = 941 parser.getAttributeValue(null, ATTR_VALUE); 942 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 943 passwordExpirationTimeout = Long.parseLong( 944 parser.getAttributeValue(null, ATTR_VALUE)); 945 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 946 passwordExpirationDate = Long.parseLong( 947 parser.getAttributeValue(null, ATTR_VALUE)); 948 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 949 encryptionRequested = Boolean.parseBoolean( 950 parser.getAttributeValue(null, ATTR_VALUE)); 951 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 952 disableCamera = Boolean.parseBoolean( 953 parser.getAttributeValue(null, ATTR_VALUE)); 954 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 955 disableCallerId = Boolean.parseBoolean( 956 parser.getAttributeValue(null, ATTR_VALUE)); 957 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 958 disableContactsSearch = Boolean.parseBoolean( 959 parser.getAttributeValue(null, ATTR_VALUE)); 960 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 961 disableBluetoothContactSharing = Boolean.parseBoolean(parser 962 .getAttributeValue(null, ATTR_VALUE)); 963 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 964 disableScreenCapture = Boolean.parseBoolean( 965 parser.getAttributeValue(null, ATTR_VALUE)); 966 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 967 requireAutoTime = Boolean.parseBoolean( 968 parser.getAttributeValue(null, ATTR_VALUE)); 969 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 970 forceEphemeralUsers = Boolean.parseBoolean( 971 parser.getAttributeValue(null, ATTR_VALUE)); 972 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 973 disabledKeyguardFeatures = Integer.parseInt( 974 parser.getAttributeValue(null, ATTR_VALUE)); 975 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 976 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 977 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 978 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 979 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 980 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 981 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 982 permittedAccessiblityServices = readPackageList(parser, tag); 983 } else if (TAG_PERMITTED_IMES.equals(tag)) { 984 permittedInputMethods = readPackageList(parser, tag); 985 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 986 keepUninstalledPackages = readPackageList(parser, tag); 987 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 988 UserRestrictionsUtils.readRestrictions(parser, ensureUserRestrictions()); 989 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 990 type = parser.next(); 991 if (type == XmlPullParser.TEXT) { 992 shortSupportMessage = parser.getText(); 993 } else { 994 Log.w(LOG_TAG, "Missing text when loading short support message"); 995 } 996 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 997 type = parser.next(); 998 if (type == XmlPullParser.TEXT) { 999 longSupportMessage = parser.getText(); 1000 } else { 1001 Log.w(LOG_TAG, "Missing text when loading long support message"); 1002 } 1003 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1004 Preconditions.checkState(!isParent); 1005 1006 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1007 parentAdmin.readFromXml(parser); 1008 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1009 organizationColor = Integer.parseInt( 1010 parser.getAttributeValue(null, ATTR_VALUE)); 1011 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1012 type = parser.next(); 1013 if (type == XmlPullParser.TEXT) { 1014 organizationName = parser.getText(); 1015 } else { 1016 Log.w(LOG_TAG, "Missing text when loading organization name"); 1017 } 1018 } else { 1019 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1020 XmlUtils.skipCurrentTag(parser); 1021 } 1022 } 1023 } 1024 1025 private List<String> readPackageList(XmlPullParser parser, 1026 String tag) throws XmlPullParserException, IOException { 1027 List<String> result = new ArrayList<String>(); 1028 int outerDepth = parser.getDepth(); 1029 int outerType; 1030 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1031 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1032 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1033 continue; 1034 } 1035 String outerTag = parser.getName(); 1036 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1037 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1038 if (packageName != null) { 1039 result.add(packageName); 1040 } else { 1041 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1042 } 1043 } else { 1044 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1045 } 1046 } 1047 return result; 1048 } 1049 1050 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 1051 throws XmlPullParserException, IOException { 1052 int outerDepthDAM = parser.getDepth(); 1053 int typeDAM; 1054 Set<String> result = new ArraySet<>(); 1055 while ((typeDAM=parser.next()) != END_DOCUMENT 1056 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1057 if (typeDAM == END_TAG || typeDAM == TEXT) { 1058 continue; 1059 } 1060 String tagDAM = parser.getName(); 1061 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 1062 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1063 } else { 1064 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1065 } 1066 } 1067 return result; 1068 } 1069 1070 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1071 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1072 int outerDepthDAM = parser.getDepth(); 1073 int typeDAM; 1074 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1075 while ((typeDAM=parser.next()) != END_DOCUMENT 1076 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1077 if (typeDAM == END_TAG || typeDAM == TEXT) { 1078 continue; 1079 } 1080 String tagDAM = parser.getName(); 1081 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1082 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1083 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1084 result.put(component, trustAgentInfo); 1085 } else { 1086 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1087 } 1088 } 1089 return result; 1090 } 1091 1092 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1093 throws XmlPullParserException, IOException { 1094 int outerDepthDAM = parser.getDepth(); 1095 int typeDAM; 1096 TrustAgentInfo result = new TrustAgentInfo(null); 1097 while ((typeDAM=parser.next()) != END_DOCUMENT 1098 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1099 if (typeDAM == END_TAG || typeDAM == TEXT) { 1100 continue; 1101 } 1102 String tagDAM = parser.getName(); 1103 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 1104 PersistableBundle bundle = new PersistableBundle(); 1105 bundle.restoreFromXml(parser); 1106 result.options = bundle; 1107 } else { 1108 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1109 } 1110 } 1111 return result; 1112 } 1113 1114 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 1115 throws XmlPullParserException, IOException { 1116 int outerDepthDAM = parser.getDepth(); 1117 int typeDAM; 1118 ArrayList<String> result = null; 1119 while ((typeDAM=parser.next()) != END_DOCUMENT 1120 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1121 if (typeDAM == END_TAG || typeDAM == TEXT) { 1122 continue; 1123 } 1124 String tagDAM = parser.getName(); 1125 if (TAG_PROVIDER.equals(tagDAM)) { 1126 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 1127 if (result == null) { 1128 result = new ArrayList<>(); 1129 } 1130 result.add(provider); 1131 } else { 1132 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1133 } 1134 } 1135 return result; 1136 } 1137 1138 boolean hasUserRestrictions() { 1139 return userRestrictions != null && userRestrictions.size() > 0; 1140 } 1141 1142 Bundle ensureUserRestrictions() { 1143 if (userRestrictions == null) { 1144 userRestrictions = new Bundle(); 1145 } 1146 return userRestrictions; 1147 } 1148 1149 void dump(String prefix, PrintWriter pw) { 1150 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1151 pw.print(prefix); pw.println("policies:"); 1152 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1153 if (pols != null) { 1154 for (int i=0; i<pols.size(); i++) { 1155 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1156 } 1157 } 1158 pw.print(prefix); pw.print("passwordQuality=0x"); 1159 pw.println(Integer.toHexString(passwordQuality)); 1160 pw.print(prefix); pw.print("minimumPasswordLength="); 1161 pw.println(minimumPasswordLength); 1162 pw.print(prefix); pw.print("passwordHistoryLength="); 1163 pw.println(passwordHistoryLength); 1164 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1165 pw.println(minimumPasswordUpperCase); 1166 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1167 pw.println(minimumPasswordLowerCase); 1168 pw.print(prefix); pw.print("minimumPasswordLetters="); 1169 pw.println(minimumPasswordLetters); 1170 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1171 pw.println(minimumPasswordNumeric); 1172 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1173 pw.println(minimumPasswordSymbols); 1174 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1175 pw.println(minimumPasswordNonLetter); 1176 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1177 pw.println(maximumTimeToUnlock); 1178 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1179 pw.println(maximumFailedPasswordsForWipe); 1180 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1181 pw.println(specifiesGlobalProxy); 1182 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1183 pw.println(passwordExpirationTimeout); 1184 pw.print(prefix); pw.print("passwordExpirationDate="); 1185 pw.println(passwordExpirationDate); 1186 if (globalProxySpec != null) { 1187 pw.print(prefix); pw.print("globalProxySpec="); 1188 pw.println(globalProxySpec); 1189 } 1190 if (globalProxyExclusionList != null) { 1191 pw.print(prefix); pw.print("globalProxyEclusionList="); 1192 pw.println(globalProxyExclusionList); 1193 } 1194 pw.print(prefix); pw.print("encryptionRequested="); 1195 pw.println(encryptionRequested); 1196 pw.print(prefix); pw.print("disableCamera="); 1197 pw.println(disableCamera); 1198 pw.print(prefix); pw.print("disableCallerId="); 1199 pw.println(disableCallerId); 1200 pw.print(prefix); pw.print("disableContactsSearch="); 1201 pw.println(disableContactsSearch); 1202 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1203 pw.println(disableBluetoothContactSharing); 1204 pw.print(prefix); pw.print("disableScreenCapture="); 1205 pw.println(disableScreenCapture); 1206 pw.print(prefix); pw.print("requireAutoTime="); 1207 pw.println(requireAutoTime); 1208 pw.print(prefix); pw.print("forceEphemeralUsers="); 1209 pw.println(forceEphemeralUsers); 1210 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1211 pw.println(disabledKeyguardFeatures); 1212 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1213 pw.println(crossProfileWidgetProviders); 1214 if (permittedAccessiblityServices != null) { 1215 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1216 pw.println(permittedAccessiblityServices); 1217 } 1218 if (permittedInputMethods != null) { 1219 pw.print(prefix); pw.print("permittedInputMethods="); 1220 pw.println(permittedInputMethods); 1221 } 1222 if (keepUninstalledPackages != null) { 1223 pw.print(prefix); pw.print("keepUninstalledPackages="); 1224 pw.println(keepUninstalledPackages); 1225 } 1226 pw.print(prefix); pw.print("organizationColor="); 1227 pw.println(organizationColor); 1228 if (organizationName != null) { 1229 pw.print(prefix); pw.print("organizationName="); 1230 pw.println(organizationName); 1231 } 1232 pw.print(prefix); pw.println("userRestrictions:"); 1233 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1234 pw.print(prefix); pw.print("isParent="); 1235 pw.println(isParent); 1236 if (parentAdmin != null) { 1237 pw.print(prefix); pw.println("parentAdmin:"); 1238 parentAdmin.dump(prefix + " ", pw); 1239 } 1240 } 1241 } 1242 1243 private void handlePackagesChanged(String packageName, int userHandle) { 1244 boolean removed = false; 1245 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1246 DevicePolicyData policy = getUserData(userHandle); 1247 synchronized (this) { 1248 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1249 ActiveAdmin aa = policy.mAdminList.get(i); 1250 try { 1251 // If we're checking all packages or if the specific one we're checking matches, 1252 // then check if the package and receiver still exist. 1253 final String adminPackage = aa.info.getPackageName(); 1254 if (packageName == null || packageName.equals(adminPackage)) { 1255 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1256 || mIPackageManager.getReceiverInfo( 1257 aa.info.getComponent(), 1258 PackageManager.MATCH_ENCRYPTION_AWARE_AND_UNAWARE, 1259 userHandle) == null) { 1260 removed = true; 1261 policy.mAdminList.remove(i); 1262 policy.mAdminMap.remove(aa.info.getComponent()); 1263 } 1264 } 1265 } catch (RemoteException re) { 1266 // Shouldn't happen 1267 } 1268 } 1269 if (removed) { 1270 validatePasswordOwnerLocked(policy); 1271 saveSettingsLocked(policy.mUserHandle); 1272 } 1273 1274 // Check if delegated cert installer or app restrictions managing packages are removed. 1275 if (isRemovedPackage(packageName, policy.mDelegatedCertInstallerPackage, userHandle)) { 1276 policy.mDelegatedCertInstallerPackage = null; 1277 saveSettingsLocked(policy.mUserHandle); 1278 } 1279 if (isRemovedPackage( 1280 packageName, policy.mApplicationRestrictionsManagingPackage, userHandle)) { 1281 policy.mApplicationRestrictionsManagingPackage = null; 1282 saveSettingsLocked(policy.mUserHandle); 1283 } 1284 } 1285 if (removed) { 1286 // The removed admin might have disabled camera, so update user restrictions. 1287 pushUserRestrictions(userHandle); 1288 } 1289 } 1290 1291 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1292 try { 1293 return targetPackage != null 1294 && (changedPackage == null || changedPackage.equals(targetPackage)) 1295 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1296 } catch (RemoteException e) { 1297 // Shouldn't happen 1298 } 1299 1300 return false; 1301 } 1302 1303 /** 1304 * Unit test will subclass it to inject mocks. 1305 */ 1306 @VisibleForTesting 1307 static class Injector { 1308 1309 private final Context mContext; 1310 1311 Injector(Context context) { 1312 mContext = context; 1313 } 1314 1315 Owners newOwners() { 1316 return new Owners(mContext, getUserManager(), getUserManagerInternal()); 1317 } 1318 1319 UserManager getUserManager() { 1320 return UserManager.get(mContext); 1321 } 1322 1323 UserManagerInternal getUserManagerInternal() { 1324 return LocalServices.getService(UserManagerInternal.class); 1325 } 1326 1327 PackageManagerInternal getPackageManagerInternal() { 1328 return LocalServices.getService(PackageManagerInternal.class); 1329 } 1330 1331 NotificationManager getNotificationManager() { 1332 return mContext.getSystemService(NotificationManager.class); 1333 } 1334 1335 PowerManagerInternal getPowerManagerInternal() { 1336 return LocalServices.getService(PowerManagerInternal.class); 1337 } 1338 1339 IWindowManager getIWindowManager() { 1340 return IWindowManager.Stub 1341 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1342 } 1343 1344 IActivityManager getIActivityManager() { 1345 return ActivityManagerNative.getDefault(); 1346 } 1347 1348 IPackageManager getIPackageManager() { 1349 return AppGlobals.getPackageManager(); 1350 } 1351 1352 IBackupManager getIBackupManager() { 1353 return IBackupManager.Stub.asInterface( 1354 ServiceManager.getService(Context.BACKUP_SERVICE)); 1355 } 1356 1357 IAudioService getIAudioService() { 1358 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1359 } 1360 1361 LockPatternUtils newLockPatternUtils() { 1362 return new LockPatternUtils(mContext); 1363 } 1364 1365 Looper getMyLooper() { 1366 return Looper.myLooper(); 1367 } 1368 1369 WifiManager getWifiManager() { 1370 return mContext.getSystemService(WifiManager.class); 1371 } 1372 1373 long binderClearCallingIdentity() { 1374 return Binder.clearCallingIdentity(); 1375 } 1376 1377 void binderRestoreCallingIdentity(long token) { 1378 Binder.restoreCallingIdentity(token); 1379 } 1380 1381 int binderGetCallingUid() { 1382 return Binder.getCallingUid(); 1383 } 1384 1385 int binderGetCallingPid() { 1386 return Binder.getCallingPid(); 1387 } 1388 1389 UserHandle binderGetCallingUserHandle() { 1390 return Binder.getCallingUserHandle(); 1391 } 1392 1393 boolean binderIsCallingUidMyUid() { 1394 return getCallingUid() == Process.myUid(); 1395 } 1396 1397 final int userHandleGetCallingUserId() { 1398 return UserHandle.getUserId(binderGetCallingUid()); 1399 } 1400 1401 File environmentGetUserSystemDirectory(int userId) { 1402 return Environment.getUserSystemDirectory(userId); 1403 } 1404 1405 void powerManagerGoToSleep(long time, int reason, int flags) { 1406 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1407 } 1408 1409 void powerManagerReboot(String reason) { 1410 mContext.getSystemService(PowerManager.class).reboot(reason); 1411 } 1412 1413 boolean systemPropertiesGetBoolean(String key, boolean def) { 1414 return SystemProperties.getBoolean(key, def); 1415 } 1416 1417 long systemPropertiesGetLong(String key, long def) { 1418 return SystemProperties.getLong(key, def); 1419 } 1420 1421 String systemPropertiesGet(String key, String def) { 1422 return SystemProperties.get(key, def); 1423 } 1424 1425 String systemPropertiesGet(String key) { 1426 return SystemProperties.get(key); 1427 } 1428 1429 void systemPropertiesSet(String key, String value) { 1430 SystemProperties.set(key, value); 1431 } 1432 1433 boolean userManagerIsSplitSystemUser() { 1434 return UserManager.isSplitSystemUser(); 1435 } 1436 1437 String getDevicePolicyFilePathForSystemUser() { 1438 return "/data/system/"; 1439 } 1440 1441 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1442 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1443 name, def, userHandle); 1444 } 1445 1446 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1447 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1448 name, value, userHandle); 1449 } 1450 1451 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1452 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1453 name, value, userHandle); 1454 } 1455 1456 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1457 Settings.Global.putStringForUser(mContext.getContentResolver(), 1458 name, value, userHandle); 1459 } 1460 1461 void settingsSecurePutInt(String name, int value) { 1462 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1463 } 1464 1465 int settingsGlobalGetInt(String name, int def) { 1466 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1467 } 1468 1469 void settingsGlobalPutInt(String name, int value) { 1470 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1471 } 1472 1473 void settingsSecurePutString(String name, String value) { 1474 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1475 } 1476 1477 void settingsGlobalPutString(String name, String value) { 1478 Settings.Global.putString(mContext.getContentResolver(), name, value); 1479 } 1480 1481 void securityLogSetLoggingEnabledProperty(boolean enabled) { 1482 SecurityLog.setLoggingEnabledProperty(enabled); 1483 } 1484 1485 boolean securityLogGetLoggingEnabledProperty() { 1486 return SecurityLog.getLoggingEnabledProperty(); 1487 } 1488 1489 boolean securityLogIsLoggingEnabled() { 1490 return SecurityLog.isLoggingEnabled(); 1491 } 1492 } 1493 1494 /** 1495 * Instantiates the service. 1496 */ 1497 public DevicePolicyManagerService(Context context) { 1498 this(new Injector(context)); 1499 } 1500 1501 @VisibleForTesting 1502 DevicePolicyManagerService(Injector injector) { 1503 mInjector = injector; 1504 mContext = Preconditions.checkNotNull(injector.mContext); 1505 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1506 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1507 1508 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1509 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1510 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1511 1512 mLocalService = new LocalService(); 1513 mLockPatternUtils = injector.newLockPatternUtils(); 1514 1515 mSecurityLogMonitor = new SecurityLogMonitor(this); 1516 1517 mHasFeature = mContext.getPackageManager() 1518 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1519 if (!mHasFeature) { 1520 // Skip the rest of the initialization 1521 return; 1522 } 1523 IntentFilter filter = new IntentFilter(); 1524 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1525 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1526 filter.addAction(Intent.ACTION_USER_ADDED); 1527 filter.addAction(Intent.ACTION_USER_REMOVED); 1528 filter.addAction(Intent.ACTION_USER_STARTED); 1529 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1530 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1531 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1532 filter = new IntentFilter(); 1533 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1534 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1535 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1536 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1537 filter.addDataScheme("package"); 1538 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1539 filter = new IntentFilter(); 1540 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1541 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1542 1543 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1544 } 1545 1546 /** 1547 * Creates and loads the policy data from xml. 1548 * @param userHandle the user for whom to load the policy data 1549 * @return 1550 */ 1551 @NonNull 1552 DevicePolicyData getUserData(int userHandle) { 1553 synchronized (this) { 1554 DevicePolicyData policy = mUserData.get(userHandle); 1555 if (policy == null) { 1556 policy = new DevicePolicyData(userHandle); 1557 mUserData.append(userHandle, policy); 1558 loadSettingsLocked(policy, userHandle); 1559 } 1560 return policy; 1561 } 1562 } 1563 1564 /** 1565 * Creates and loads the policy data from xml for data that is shared between 1566 * various profiles of a user. In contrast to {@link #getUserData(int)} 1567 * it allows access to data of users other than the calling user. 1568 * 1569 * This function should only be used for shared data, e.g. everything regarding 1570 * passwords and should be removed once multiple screen locks are present. 1571 * @param userHandle the user for whom to load the policy data 1572 * @return 1573 */ 1574 DevicePolicyData getUserDataUnchecked(int userHandle) { 1575 long ident = mInjector.binderClearCallingIdentity(); 1576 try { 1577 return getUserData(userHandle); 1578 } finally { 1579 mInjector.binderRestoreCallingIdentity(ident); 1580 } 1581 } 1582 1583 void removeUserData(int userHandle) { 1584 synchronized (this) { 1585 if (userHandle == UserHandle.USER_SYSTEM) { 1586 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1587 return; 1588 } 1589 mOwners.removeProfileOwner(userHandle); 1590 mOwners.writeProfileOwner(userHandle); 1591 1592 DevicePolicyData policy = mUserData.get(userHandle); 1593 if (policy != null) { 1594 mUserData.remove(userHandle); 1595 } 1596 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1597 DEVICE_POLICIES_XML); 1598 policyFile.delete(); 1599 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1600 } 1601 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1602 } 1603 1604 void loadOwners() { 1605 synchronized (this) { 1606 mOwners.load(); 1607 setDeviceOwnerSystemPropertyLocked(); 1608 findOwnerComponentIfNecessaryLocked(); 1609 migrateUserRestrictionsIfNecessaryLocked(); 1610 1611 // TODO PO may not have a class name either due to b/17652534. Address that too. 1612 1613 updateDeviceOwnerLocked(); 1614 } 1615 } 1616 1617 private void setDeviceOwnerSystemPropertyLocked() { 1618 // Device owner may still be provisioned, do not set the read-only system property yet. 1619 if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) == 0) { 1620 return; 1621 } 1622 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 1623 // always false at this point. 1624 if ("encrypted".equals(mInjector.systemPropertiesGet("ro.crypto.state")) 1625 && "trigger_restart_min_framework".equals( 1626 mInjector.systemPropertiesGet("vold.decrypt"))){ 1627 return; 1628 } 1629 1630 if (!TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT))) { 1631 Slog.wtf(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 1632 } else { 1633 if (mOwners.hasDeviceOwner()) { 1634 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "true"); 1635 disableDeviceLoggingIfNotCompliant(); 1636 if (mInjector.securityLogGetLoggingEnabledProperty()) { 1637 mSecurityLogMonitor.start(); 1638 } 1639 } else { 1640 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "false"); 1641 } 1642 } 1643 } 1644 1645 private void findOwnerComponentIfNecessaryLocked() { 1646 if (!mOwners.hasDeviceOwner()) { 1647 return; 1648 } 1649 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1650 1651 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1652 return; // Already a full component name. 1653 } 1654 1655 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1656 doComponentName.getPackageName(), 1657 mOwners.getDeviceOwnerUserId()); 1658 if (doComponent == null) { 1659 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1660 } else { 1661 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1662 doComponent, 1663 mOwners.getDeviceOwnerName(), 1664 mOwners.getDeviceOwnerUserId(), 1665 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1666 mOwners.writeDeviceOwner(); 1667 if (VERBOSE_LOG) { 1668 Log.v(LOG_TAG, "Device owner component filled in"); 1669 } 1670 } 1671 } 1672 1673 /** 1674 * We didn't use to persist user restrictions for each owners but only persisted in user 1675 * manager. 1676 */ 1677 private void migrateUserRestrictionsIfNecessaryLocked() { 1678 boolean migrated = false; 1679 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 1680 // except for the "system controlled" ones. 1681 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 1682 if (VERBOSE_LOG) { 1683 Log.v(LOG_TAG, "Migrating DO user restrictions"); 1684 } 1685 migrated = true; 1686 1687 // Migrate user 0 restrictions to DO. 1688 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 1689 1690 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 1691 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 1692 1693 // Push DO user restrictions to user manager. 1694 pushUserRestrictions(UserHandle.USER_SYSTEM); 1695 1696 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 1697 } 1698 1699 // Migrate for POs. 1700 1701 // The following restrictions can be set on secondary users by the device owner, so we 1702 // assume they're not from the PO. 1703 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 1704 UserManager.DISALLOW_OUTGOING_CALLS, 1705 UserManager.DISALLOW_SMS); 1706 1707 for (UserInfo ui : mUserManager.getUsers()) { 1708 final int userId = ui.id; 1709 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 1710 if (VERBOSE_LOG) { 1711 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 1712 } 1713 migrated = true; 1714 1715 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 1716 1717 final Set<String> exceptionList = 1718 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 1719 1720 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 1721 exceptionList, /* isDeviceOwner =*/ false); 1722 1723 // Note if a secondary user has no PO but has a DA that disables camera, we 1724 // don't get here and won't push the camera user restriction to UserManager 1725 // here. That's okay because we'll push user restrictions anyway when a user 1726 // starts. But we still do it because we want to let user manager persist 1727 // upon migration. 1728 pushUserRestrictions(userId); 1729 1730 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 1731 } 1732 } 1733 if (VERBOSE_LOG && migrated) { 1734 Log.v(LOG_TAG, "User restrictions migrated."); 1735 } 1736 } 1737 1738 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 1739 Set<String> exceptionList, boolean isDeviceOwner) { 1740 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 1741 user.getIdentifier()); 1742 1743 final Bundle newBaseRestrictions = new Bundle(); 1744 final Bundle newOwnerRestrictions = new Bundle(); 1745 1746 for (String key : origRestrictions.keySet()) { 1747 if (!origRestrictions.getBoolean(key)) { 1748 continue; 1749 } 1750 final boolean canOwnerChange = isDeviceOwner 1751 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 1752 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 1753 1754 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 1755 newBaseRestrictions.putBoolean(key, true); 1756 } else { 1757 newOwnerRestrictions.putBoolean(key, true); 1758 } 1759 } 1760 1761 if (VERBOSE_LOG) { 1762 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 1763 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 1764 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 1765 } 1766 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 1767 newBaseRestrictions); 1768 1769 if (admin != null) { 1770 admin.ensureUserRestrictions().clear(); 1771 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 1772 } else { 1773 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 1774 } 1775 saveSettingsLocked(user.getIdentifier()); 1776 } 1777 1778 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 1779 final DevicePolicyData policy = getUserData(userId); 1780 final int n = policy.mAdminList.size(); 1781 ComponentName found = null; 1782 int nFound = 0; 1783 for (int i = 0; i < n; i++) { 1784 final ActiveAdmin admin = policy.mAdminList.get(i); 1785 if (packageName.equals(admin.info.getPackageName())) { 1786 // Found! 1787 if (nFound == 0) { 1788 found = admin.info.getComponent(); 1789 } 1790 nFound++; 1791 } 1792 } 1793 if (nFound > 1) { 1794 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 1795 } 1796 return found; 1797 } 1798 1799 /** 1800 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1801 * reminders. Clears alarm if no expirations are configured. 1802 */ 1803 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 1804 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 1805 final long now = System.currentTimeMillis(); 1806 final long timeToExpire = expiration - now; 1807 final long alarmTime; 1808 if (expiration == 0) { 1809 // No expirations are currently configured: Cancel alarm. 1810 alarmTime = 0; 1811 } else if (timeToExpire <= 0) { 1812 // The password has already expired: Repeat every 24 hours. 1813 alarmTime = now + MS_PER_DAY; 1814 } else { 1815 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1816 // the expiration time. 1817 long alarmInterval = timeToExpire % MS_PER_DAY; 1818 if (alarmInterval == 0) { 1819 alarmInterval = MS_PER_DAY; 1820 } 1821 alarmTime = now + alarmInterval; 1822 } 1823 1824 long token = mInjector.binderClearCallingIdentity(); 1825 try { 1826 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 1827 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1828 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1829 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1830 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1831 UserHandle.of(affectedUserHandle)); 1832 am.cancel(pi); 1833 if (alarmTime != 0) { 1834 am.set(AlarmManager.RTC, alarmTime, pi); 1835 } 1836 } finally { 1837 mInjector.binderRestoreCallingIdentity(token); 1838 } 1839 } 1840 1841 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1842 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1843 if (admin != null 1844 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1845 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1846 return admin; 1847 } 1848 return null; 1849 } 1850 1851 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 1852 if (parent) { 1853 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 1854 } 1855 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1856 if (admin != null && parent) { 1857 admin = admin.getParentActiveAdmin(); 1858 } 1859 return admin; 1860 } 1861 1862 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1863 throws SecurityException { 1864 final int callingUid = mInjector.binderGetCallingUid(); 1865 1866 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1867 if (result != null) { 1868 return result; 1869 } 1870 1871 if (who != null) { 1872 final int userId = UserHandle.getUserId(callingUid); 1873 final DevicePolicyData policy = getUserData(userId); 1874 ActiveAdmin admin = policy.mAdminMap.get(who); 1875 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1876 throw new SecurityException("Admin " + admin.info.getComponent() 1877 + " does not own the device"); 1878 } 1879 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1880 throw new SecurityException("Admin " + admin.info.getComponent() 1881 + " does not own the profile"); 1882 } 1883 throw new SecurityException("Admin " + admin.info.getComponent() 1884 + " did not specify uses-policy for: " 1885 + admin.info.getTagForPolicy(reqPolicy)); 1886 } else { 1887 throw new SecurityException("No active admin owned by uid " 1888 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 1889 } 1890 } 1891 1892 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 1893 throws SecurityException { 1894 if (parent) { 1895 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 1896 "call APIs on the parent profile"); 1897 } 1898 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 1899 return parent ? admin.getParentActiveAdmin() : admin; 1900 } 1901 /** 1902 * Find the admin for the component and userId bit of the uid, then check 1903 * the admin's uid matches the uid. 1904 */ 1905 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 1906 final int userId = UserHandle.getUserId(uid); 1907 final DevicePolicyData policy = getUserData(userId); 1908 ActiveAdmin admin = policy.mAdminMap.get(who); 1909 if (admin == null) { 1910 throw new SecurityException("No active admin " + who); 1911 } 1912 if (admin.getUid() != uid) { 1913 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 1914 } 1915 return admin; 1916 } 1917 1918 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 1919 int uid) { 1920 // Try to find an admin which can use reqPolicy 1921 final int userId = UserHandle.getUserId(uid); 1922 final DevicePolicyData policy = getUserData(userId); 1923 if (who != null) { 1924 ActiveAdmin admin = policy.mAdminMap.get(who); 1925 if (admin == null) { 1926 throw new SecurityException("No active admin " + who); 1927 } 1928 if (admin.getUid() != uid) { 1929 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 1930 } 1931 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 1932 return admin; 1933 } 1934 } else { 1935 for (ActiveAdmin admin : policy.mAdminList) { 1936 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 1937 userId)) { 1938 return admin; 1939 } 1940 } 1941 } 1942 1943 return null; 1944 } 1945 1946 @VisibleForTesting 1947 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 1948 int userId) { 1949 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 1950 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 1951 1952 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1953 return ownsDevice; 1954 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1955 // DO always has the PO power. 1956 return ownsDevice || ownsProfile; 1957 } else { 1958 return admin.info.usesPolicy(reqPolicy); 1959 } 1960 } 1961 1962 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 1963 sendAdminCommandLocked(admin, action, null); 1964 } 1965 1966 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 1967 sendAdminCommandLocked(admin, action, null, result); 1968 } 1969 1970 /** 1971 * Send an update to one specific admin, get notified when that admin returns a result. 1972 */ 1973 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 1974 BroadcastReceiver result) { 1975 Intent intent = new Intent(action); 1976 intent.setComponent(admin.info.getComponent()); 1977 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 1978 intent.putExtra("expiration", admin.passwordExpirationDate); 1979 } 1980 if (adminExtras != null) { 1981 intent.putExtras(adminExtras); 1982 } 1983 if (result != null) { 1984 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 1985 null, result, mHandler, Activity.RESULT_OK, null, null); 1986 } else { 1987 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 1988 } 1989 } 1990 1991 /** 1992 * Send an update to all admins of a user that enforce a specified policy. 1993 */ 1994 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 1995 final DevicePolicyData policy = getUserData(userHandle); 1996 final int count = policy.mAdminList.size(); 1997 if (count > 0) { 1998 for (int i = 0; i < count; i++) { 1999 final ActiveAdmin admin = policy.mAdminList.get(i); 2000 if (admin.info.usesPolicy(reqPolicy)) { 2001 sendAdminCommandLocked(admin, action); 2002 } 2003 } 2004 } 2005 } 2006 2007 /** 2008 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2009 * enforce a specified policy. 2010 */ 2011 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2012 int userHandle) { 2013 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2014 for (UserInfo ui : profiles) { 2015 int id = ui.id; 2016 sendAdminCommandLocked(action, reqPolicy, id); 2017 } 2018 } 2019 2020 /** 2021 * Sends a broadcast to each profile that share the password unlock with the given user id. 2022 */ 2023 private void sendAdminCommandForLockscreenPoliciesLocked( 2024 String action, int reqPolicy, int userHandle) { 2025 if (isSeparateProfileChallengeEnabled(userHandle)) { 2026 sendAdminCommandLocked(action, reqPolicy, userHandle); 2027 } else { 2028 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle); 2029 } 2030 } 2031 2032 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2033 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2034 if (admin != null) { 2035 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 2036 sendAdminCommandLocked(admin, 2037 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2038 new BroadcastReceiver() { 2039 @Override 2040 public void onReceive(Context context, Intent intent) { 2041 removeAdminArtifacts(adminReceiver, userHandle); 2042 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2043 } 2044 }); 2045 } 2046 } 2047 2048 2049 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2050 boolean throwForMissiongPermission) { 2051 if (!mHasFeature) { 2052 return null; 2053 } 2054 enforceFullCrossUsersPermission(userHandle); 2055 ActivityInfo ai = null; 2056 try { 2057 ai = mIPackageManager.getReceiverInfo(adminName, 2058 PackageManager.GET_META_DATA | 2059 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS | 2060 PackageManager.MATCH_ENCRYPTION_AWARE_AND_UNAWARE, userHandle); 2061 } catch (RemoteException e) { 2062 // shouldn't happen. 2063 } 2064 if (ai == null) { 2065 throw new IllegalArgumentException("Unknown admin: " + adminName); 2066 } 2067 2068 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2069 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2070 + permission.BIND_DEVICE_ADMIN; 2071 Slog.w(LOG_TAG, message); 2072 if (throwForMissiongPermission && 2073 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2074 throw new IllegalArgumentException(message); 2075 } 2076 } 2077 2078 try { 2079 return new DeviceAdminInfo(mContext, ai); 2080 } catch (XmlPullParserException | IOException e) { 2081 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2082 e); 2083 return null; 2084 } 2085 } 2086 2087 private JournaledFile makeJournaledFile(int userHandle) { 2088 final String base = userHandle == UserHandle.USER_SYSTEM 2089 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 2090 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2091 DEVICE_POLICIES_XML).getAbsolutePath(); 2092 if (VERBOSE_LOG) { 2093 Log.v(LOG_TAG, "Opening " + base); 2094 } 2095 return new JournaledFile(new File(base), new File(base + ".tmp")); 2096 } 2097 2098 private void saveSettingsLocked(int userHandle) { 2099 DevicePolicyData policy = getUserData(userHandle); 2100 JournaledFile journal = makeJournaledFile(userHandle); 2101 FileOutputStream stream = null; 2102 try { 2103 stream = new FileOutputStream(journal.chooseForWrite(), false); 2104 XmlSerializer out = new FastXmlSerializer(); 2105 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2106 out.startDocument(null, true); 2107 2108 out.startTag(null, "policies"); 2109 if (policy.mRestrictionsProvider != null) { 2110 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2111 policy.mRestrictionsProvider.flattenToString()); 2112 } 2113 if (policy.mUserSetupComplete) { 2114 out.attribute(null, ATTR_SETUP_COMPLETE, 2115 Boolean.toString(true)); 2116 } 2117 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2118 out.attribute(null, ATTR_PROVISIONING_STATE, 2119 Integer.toString(policy.mUserProvisioningState)); 2120 } 2121 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2122 out.attribute(null, ATTR_PERMISSION_POLICY, 2123 Integer.toString(policy.mPermissionPolicy)); 2124 } 2125 if (policy.mDelegatedCertInstallerPackage != null) { 2126 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 2127 policy.mDelegatedCertInstallerPackage); 2128 } 2129 if (policy.mApplicationRestrictionsManagingPackage != null) { 2130 out.attribute(null, ATTR_APPLICATION_RESTRICTIONS_MANAGER, 2131 policy.mApplicationRestrictionsManagingPackage); 2132 } 2133 2134 final int N = policy.mAdminList.size(); 2135 for (int i=0; i<N; i++) { 2136 ActiveAdmin ap = policy.mAdminList.get(i); 2137 if (ap != null) { 2138 out.startTag(null, "admin"); 2139 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2140 ap.writeToXml(out); 2141 out.endTag(null, "admin"); 2142 } 2143 } 2144 2145 if (policy.mPasswordOwner >= 0) { 2146 out.startTag(null, "password-owner"); 2147 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2148 out.endTag(null, "password-owner"); 2149 } 2150 2151 if (policy.mFailedPasswordAttempts != 0) { 2152 out.startTag(null, "failed-password-attempts"); 2153 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2154 out.endTag(null, "failed-password-attempts"); 2155 } 2156 2157 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 2158 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 2159 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 2160 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 2161 out.startTag(null, "active-password"); 2162 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 2163 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 2164 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 2165 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 2166 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 2167 out.attribute(null, "numeric", Integer 2168 .toString(policy.mActivePasswordNumeric)); 2169 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 2170 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 2171 out.endTag(null, "active-password"); 2172 } 2173 2174 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2175 String component = policy.mLockTaskPackages.get(i); 2176 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2177 out.attribute(null, "name", component); 2178 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2179 } 2180 2181 if (policy.mStatusBarDisabled) { 2182 out.startTag(null, TAG_STATUS_BAR); 2183 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2184 out.endTag(null, TAG_STATUS_BAR); 2185 } 2186 2187 if (policy.doNotAskCredentialsOnBoot) { 2188 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2189 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2190 } 2191 2192 for (String id : policy.mAffiliationIds) { 2193 out.startTag(null, TAG_AFFILIATION_ID); 2194 out.attribute(null, "id", id); 2195 out.endTag(null, TAG_AFFILIATION_ID); 2196 } 2197 2198 if (policy.mAdminBroadcastPending) { 2199 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2200 out.attribute(null, ATTR_VALUE, 2201 Boolean.toString(policy.mAdminBroadcastPending)); 2202 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2203 } 2204 2205 if (policy.mInitBundle != null) { 2206 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 2207 policy.mInitBundle.saveToXml(out); 2208 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 2209 } 2210 2211 out.endTag(null, "policies"); 2212 2213 out.endDocument(); 2214 stream.flush(); 2215 FileUtils.sync(stream); 2216 stream.close(); 2217 journal.commit(); 2218 sendChangedNotification(userHandle); 2219 } catch (XmlPullParserException | IOException e) { 2220 Slog.w(LOG_TAG, "failed writing file", e); 2221 try { 2222 if (stream != null) { 2223 stream.close(); 2224 } 2225 } catch (IOException ex) { 2226 // Ignore 2227 } 2228 journal.rollback(); 2229 } 2230 } 2231 2232 private void sendChangedNotification(int userHandle) { 2233 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 2234 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2235 long ident = mInjector.binderClearCallingIdentity(); 2236 try { 2237 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 2238 } finally { 2239 mInjector.binderRestoreCallingIdentity(ident); 2240 } 2241 } 2242 2243 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 2244 JournaledFile journal = makeJournaledFile(userHandle); 2245 FileInputStream stream = null; 2246 File file = journal.chooseForRead(); 2247 try { 2248 stream = new FileInputStream(file); 2249 XmlPullParser parser = Xml.newPullParser(); 2250 parser.setInput(stream, StandardCharsets.UTF_8.name()); 2251 2252 int type; 2253 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2254 && type != XmlPullParser.START_TAG) { 2255 } 2256 String tag = parser.getName(); 2257 if (!"policies".equals(tag)) { 2258 throw new XmlPullParserException( 2259 "Settings do not start with policies tag: found " + tag); 2260 } 2261 2262 // Extract the permission provider component name if available 2263 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 2264 if (permissionProvider != null) { 2265 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 2266 } 2267 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 2268 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 2269 policy.mUserSetupComplete = true; 2270 } 2271 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 2272 if (!TextUtils.isEmpty(provisioningState)) { 2273 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 2274 } 2275 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 2276 if (!TextUtils.isEmpty(permissionPolicy)) { 2277 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 2278 } 2279 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 2280 ATTR_DELEGATED_CERT_INSTALLER); 2281 policy.mApplicationRestrictionsManagingPackage = parser.getAttributeValue(null, 2282 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 2283 2284 type = parser.next(); 2285 int outerDepth = parser.getDepth(); 2286 policy.mLockTaskPackages.clear(); 2287 policy.mAdminList.clear(); 2288 policy.mAdminMap.clear(); 2289 policy.mAffiliationIds.clear(); 2290 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2291 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2292 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2293 continue; 2294 } 2295 tag = parser.getName(); 2296 if ("admin".equals(tag)) { 2297 String name = parser.getAttributeValue(null, "name"); 2298 try { 2299 DeviceAdminInfo dai = findAdmin( 2300 ComponentName.unflattenFromString(name), userHandle, 2301 /* throwForMissionPermission= */ false); 2302 if (VERBOSE_LOG 2303 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 2304 != userHandle)) { 2305 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 2306 + dai.getActivityInfo().applicationInfo.uid + " for user " 2307 + userHandle); 2308 } 2309 if (dai != null) { 2310 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 2311 ap.readFromXml(parser); 2312 policy.mAdminMap.put(ap.info.getComponent(), ap); 2313 } 2314 } catch (RuntimeException e) { 2315 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 2316 } 2317 } else if ("failed-password-attempts".equals(tag)) { 2318 policy.mFailedPasswordAttempts = Integer.parseInt( 2319 parser.getAttributeValue(null, "value")); 2320 } else if ("password-owner".equals(tag)) { 2321 policy.mPasswordOwner = Integer.parseInt( 2322 parser.getAttributeValue(null, "value")); 2323 } else if ("active-password".equals(tag)) { 2324 policy.mActivePasswordQuality = Integer.parseInt( 2325 parser.getAttributeValue(null, "quality")); 2326 policy.mActivePasswordLength = Integer.parseInt( 2327 parser.getAttributeValue(null, "length")); 2328 policy.mActivePasswordUpperCase = Integer.parseInt( 2329 parser.getAttributeValue(null, "uppercase")); 2330 policy.mActivePasswordLowerCase = Integer.parseInt( 2331 parser.getAttributeValue(null, "lowercase")); 2332 policy.mActivePasswordLetters = Integer.parseInt( 2333 parser.getAttributeValue(null, "letters")); 2334 policy.mActivePasswordNumeric = Integer.parseInt( 2335 parser.getAttributeValue(null, "numeric")); 2336 policy.mActivePasswordSymbols = Integer.parseInt( 2337 parser.getAttributeValue(null, "symbols")); 2338 policy.mActivePasswordNonLetter = Integer.parseInt( 2339 parser.getAttributeValue(null, "nonletter")); 2340 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2341 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2342 } else if (TAG_STATUS_BAR.equals(tag)) { 2343 policy.mStatusBarDisabled = Boolean.parseBoolean( 2344 parser.getAttributeValue(null, ATTR_DISABLED)); 2345 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2346 policy.doNotAskCredentialsOnBoot = true; 2347 } else if (TAG_AFFILIATION_ID.equals(tag)) { 2348 policy.mAffiliationIds.add(parser.getAttributeValue(null, "id")); 2349 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 2350 String pending = parser.getAttributeValue(null, ATTR_VALUE); 2351 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 2352 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 2353 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 2354 } else { 2355 Slog.w(LOG_TAG, "Unknown tag: " + tag); 2356 XmlUtils.skipCurrentTag(parser); 2357 } 2358 } 2359 } catch (FileNotFoundException e) { 2360 // Don't be noisy, this is normal if we haven't defined any policies. 2361 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 2362 | IndexOutOfBoundsException e) { 2363 Slog.w(LOG_TAG, "failed parsing " + file, e); 2364 } 2365 try { 2366 if (stream != null) { 2367 stream.close(); 2368 } 2369 } catch (IOException e) { 2370 // Ignore 2371 } 2372 2373 // Generate a list of admins from the admin map 2374 policy.mAdminList.addAll(policy.mAdminMap.values()); 2375 2376 // Validate that what we stored for the password quality matches 2377 // sufficiently what is currently set. Note that this is only 2378 // a sanity check in case the two get out of sync; this should 2379 // never normally happen. 2380 final long identity = mInjector.binderClearCallingIdentity(); 2381 try { 2382 int actualPasswordQuality = mLockPatternUtils.getActivePasswordQuality(userHandle); 2383 if (actualPasswordQuality < policy.mActivePasswordQuality) { 2384 Slog.w(LOG_TAG, "Active password quality 0x" 2385 + Integer.toHexString(policy.mActivePasswordQuality) 2386 + " does not match actual quality 0x" 2387 + Integer.toHexString(actualPasswordQuality)); 2388 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2389 policy.mActivePasswordLength = 0; 2390 policy.mActivePasswordUpperCase = 0; 2391 policy.mActivePasswordLowerCase = 0; 2392 policy.mActivePasswordLetters = 0; 2393 policy.mActivePasswordNumeric = 0; 2394 policy.mActivePasswordSymbols = 0; 2395 policy.mActivePasswordNonLetter = 0; 2396 } 2397 } finally { 2398 mInjector.binderRestoreCallingIdentity(identity); 2399 } 2400 2401 validatePasswordOwnerLocked(policy); 2402 updateMaximumTimeToLockLocked(userHandle); 2403 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2404 if (policy.mStatusBarDisabled) { 2405 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2406 } 2407 } 2408 2409 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2410 long ident = mInjector.binderClearCallingIdentity(); 2411 try { 2412 mInjector.getIActivityManager() 2413 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2414 } catch (RemoteException e) { 2415 // Not gonna happen. 2416 } finally { 2417 mInjector.binderRestoreCallingIdentity(ident); 2418 } 2419 } 2420 2421 private void updateDeviceOwnerLocked() { 2422 long ident = mInjector.binderClearCallingIdentity(); 2423 try { 2424 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2425 // user id and also protect all other DAs too. 2426 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2427 if (deviceOwnerComponent != null) { 2428 mInjector.getIActivityManager() 2429 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2430 } 2431 } catch (RemoteException e) { 2432 // Not gonna happen. 2433 } finally { 2434 mInjector.binderRestoreCallingIdentity(ident); 2435 } 2436 } 2437 2438 static void validateQualityConstant(int quality) { 2439 switch (quality) { 2440 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2441 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2442 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2443 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2444 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2445 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2446 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2447 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2448 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 2449 return; 2450 } 2451 throw new IllegalArgumentException("Invalid quality constant: 0x" 2452 + Integer.toHexString(quality)); 2453 } 2454 2455 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2456 if (policy.mPasswordOwner >= 0) { 2457 boolean haveOwner = false; 2458 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2459 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2460 haveOwner = true; 2461 break; 2462 } 2463 } 2464 if (!haveOwner) { 2465 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2466 + " no longer active; disabling"); 2467 policy.mPasswordOwner = -1; 2468 } 2469 } 2470 } 2471 2472 @VisibleForTesting 2473 void systemReady(int phase) { 2474 if (!mHasFeature) { 2475 return; 2476 } 2477 switch (phase) { 2478 case SystemService.PHASE_LOCK_SETTINGS_READY: 2479 onLockSettingsReady(); 2480 break; 2481 case SystemService.PHASE_BOOT_COMPLETED: 2482 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2483 break; 2484 } 2485 } 2486 2487 private void onLockSettingsReady() { 2488 getUserData(UserHandle.USER_SYSTEM); 2489 loadOwners(); 2490 cleanUpOldUsers(); 2491 2492 onStartUser(UserHandle.USER_SYSTEM); 2493 2494 // Register an observer for watching for user setup complete. 2495 new SetupContentObserver(mHandler).register(mContext.getContentResolver()); 2496 // Initialize the user setup state, to handle the upgrade case. 2497 updateUserSetupComplete(); 2498 2499 List<String> packageList; 2500 synchronized (this) { 2501 packageList = getKeepUninstalledPackagesLocked(); 2502 } 2503 if (packageList != null) { 2504 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 2505 } 2506 2507 synchronized (this) { 2508 // push the force-ephemeral-users policy to the user manager. 2509 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 2510 if (deviceOwner != null) { 2511 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 2512 } 2513 } 2514 } 2515 2516 private void ensureDeviceOwnerUserStarted() { 2517 final int userId; 2518 synchronized (this) { 2519 if (!mOwners.hasDeviceOwner()) { 2520 return; 2521 } 2522 userId = mOwners.getDeviceOwnerUserId(); 2523 } 2524 if (VERBOSE_LOG) { 2525 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2526 } 2527 if (userId != UserHandle.USER_SYSTEM) { 2528 try { 2529 mInjector.getIActivityManager().startUserInBackground(userId); 2530 2531 // STOPSHIP Prevent the DO user from being killed. 2532 2533 } catch (RemoteException e) { 2534 Slog.w(LOG_TAG, "Exception starting user", e); 2535 } 2536 } 2537 } 2538 2539 private void onStartUser(int userId) { 2540 updateScreenCaptureDisabledInWindowManager(userId, 2541 getScreenCaptureDisabled(null, userId)); 2542 pushUserRestrictions(userId); 2543 } 2544 2545 private void cleanUpOldUsers() { 2546 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2547 // before reboot 2548 Set<Integer> usersWithProfileOwners; 2549 Set<Integer> usersWithData; 2550 synchronized(this) { 2551 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2552 usersWithData = new ArraySet<>(); 2553 for (int i = 0; i < mUserData.size(); i++) { 2554 usersWithData.add(mUserData.keyAt(i)); 2555 } 2556 } 2557 List<UserInfo> allUsers = mUserManager.getUsers(); 2558 2559 Set<Integer> deletedUsers = new ArraySet<>(); 2560 deletedUsers.addAll(usersWithProfileOwners); 2561 deletedUsers.addAll(usersWithData); 2562 for (UserInfo userInfo : allUsers) { 2563 deletedUsers.remove(userInfo.id); 2564 } 2565 for (Integer userId : deletedUsers) { 2566 removeUserData(userId); 2567 } 2568 } 2569 2570 private void handlePasswordExpirationNotification(int userHandle) { 2571 synchronized (this) { 2572 final long now = System.currentTimeMillis(); 2573 2574 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 2575 userHandle, /* parent */ false); 2576 final int N = admins.size(); 2577 for (int i = 0; i < N; i++) { 2578 ActiveAdmin admin = admins.get(i); 2579 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 2580 && admin.passwordExpirationTimeout > 0L 2581 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2582 && admin.passwordExpirationDate > 0L) { 2583 sendAdminCommandLocked(admin, 2584 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2585 } 2586 } 2587 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 2588 } 2589 } 2590 2591 private class MonitoringCertNotificationTask extends AsyncTask<Intent, Void, Void> { 2592 @Override 2593 protected Void doInBackground(Intent... params) { 2594 int userHandle = params[0].getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 2595 2596 if (userHandle == UserHandle.USER_ALL) { 2597 for (UserInfo userInfo : mUserManager.getUsers()) { 2598 manageNotification(userInfo.getUserHandle()); 2599 } 2600 } else { 2601 manageNotification(new UserHandle(userHandle)); 2602 } 2603 return null; 2604 } 2605 2606 private void manageNotification(UserHandle userHandle) { 2607 if (!mUserManager.isUserRunning(userHandle)) { 2608 return; 2609 } 2610 2611 // Call out to KeyChain to check for user-added CAs 2612 boolean hasCert = false; 2613 try { 2614 KeyChainConnection kcs = KeyChain.bindAsUser(mContext, userHandle); 2615 try { 2616 if (!kcs.getService().getUserCaAliases().getList().isEmpty()) { 2617 hasCert = true; 2618 } 2619 } catch (RemoteException e) { 2620 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2621 } finally { 2622 kcs.close(); 2623 } 2624 } catch (InterruptedException e) { 2625 Thread.currentThread().interrupt(); 2626 } catch (RuntimeException e) { 2627 Log.e(LOG_TAG, "Could not connect to KeyChain service", e); 2628 } 2629 if (!hasCert) { 2630 mInjector.getNotificationManager().cancelAsUser( 2631 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2632 return; 2633 } 2634 2635 // Build and show a warning notification 2636 int smallIconId; 2637 String contentText; 2638 // TODO Why does it use the DO name? The cert APIs are all for PO. b/25772443 2639 final String ownerName = getDeviceOwnerName(); 2640 if (isManagedProfile(userHandle.getIdentifier())) { 2641 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 2642 smallIconId = R.drawable.stat_sys_certificate_info; 2643 } else if (ownerName != null) { 2644 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 2645 smallIconId = R.drawable.stat_sys_certificate_info; 2646 } else { 2647 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2648 smallIconId = android.R.drawable.stat_sys_warning; 2649 } 2650 2651 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2652 dialogIntent.setFlags( 2653 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2654 dialogIntent.setPackage("com.android.settings"); 2655 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2656 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 2657 2658 final Context userContext; 2659 try { 2660 userContext = mContext.createPackageContextAsUser("android", 0, userHandle); 2661 } catch (PackageManager.NameNotFoundException e) { 2662 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2663 return; 2664 } 2665 final Notification noti = new Notification.Builder(userContext) 2666 .setSmallIcon(smallIconId) 2667 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 2668 .setContentText(contentText) 2669 .setContentIntent(notifyIntent) 2670 .setPriority(Notification.PRIORITY_HIGH) 2671 .setShowWhen(false) 2672 .setColor(mContext.getColor( 2673 com.android.internal.R.color.system_notification_accent_color)) 2674 .build(); 2675 2676 mInjector.getNotificationManager().notifyAsUser( 2677 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2678 } 2679 } 2680 2681 /** 2682 * @param adminReceiver The admin to add 2683 * @param refreshing true = update an active admin, no error 2684 */ 2685 @Override 2686 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2687 if (!mHasFeature) { 2688 return; 2689 } 2690 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2691 } 2692 2693 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2694 Bundle onEnableData) { 2695 mContext.enforceCallingOrSelfPermission( 2696 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2697 enforceFullCrossUsersPermission(userHandle); 2698 2699 DevicePolicyData policy = getUserData(userHandle); 2700 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 2701 /* throwForMissionPermission= */ true); 2702 if (info == null) { 2703 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2704 } 2705 if (!info.getActivityInfo().applicationInfo.isInternal()) { 2706 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 2707 + adminReceiver); 2708 } 2709 synchronized (this) { 2710 long ident = mInjector.binderClearCallingIdentity(); 2711 try { 2712 if (!refreshing 2713 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 2714 throw new IllegalArgumentException("Admin is already added"); 2715 } 2716 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 2717 policy.mAdminMap.put(adminReceiver, newAdmin); 2718 int replaceIndex = -1; 2719 final int N = policy.mAdminList.size(); 2720 for (int i=0; i < N; i++) { 2721 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2722 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2723 replaceIndex = i; 2724 break; 2725 } 2726 } 2727 if (replaceIndex == -1) { 2728 policy.mAdminList.add(newAdmin); 2729 enableIfNecessary(info.getPackageName(), userHandle); 2730 } else { 2731 policy.mAdminList.set(replaceIndex, newAdmin); 2732 } 2733 saveSettingsLocked(userHandle); 2734 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2735 onEnableData, null); 2736 } finally { 2737 mInjector.binderRestoreCallingIdentity(ident); 2738 } 2739 } 2740 } 2741 2742 @Override 2743 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2744 if (!mHasFeature) { 2745 return false; 2746 } 2747 enforceFullCrossUsersPermission(userHandle); 2748 synchronized (this) { 2749 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2750 } 2751 } 2752 2753 @Override 2754 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2755 if (!mHasFeature) { 2756 return false; 2757 } 2758 enforceFullCrossUsersPermission(userHandle); 2759 synchronized (this) { 2760 DevicePolicyData policyData = getUserData(userHandle); 2761 return policyData.mRemovingAdmins.contains(adminReceiver); 2762 } 2763 } 2764 2765 @Override 2766 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 2767 if (!mHasFeature) { 2768 return false; 2769 } 2770 enforceFullCrossUsersPermission(userHandle); 2771 synchronized (this) { 2772 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2773 if (administrator == null) { 2774 throw new SecurityException("No active admin " + adminReceiver); 2775 } 2776 return administrator.info.usesPolicy(policyId); 2777 } 2778 } 2779 2780 @Override 2781 @SuppressWarnings("unchecked") 2782 public List<ComponentName> getActiveAdmins(int userHandle) { 2783 if (!mHasFeature) { 2784 return Collections.EMPTY_LIST; 2785 } 2786 2787 enforceFullCrossUsersPermission(userHandle); 2788 synchronized (this) { 2789 DevicePolicyData policy = getUserData(userHandle); 2790 final int N = policy.mAdminList.size(); 2791 if (N <= 0) { 2792 return null; 2793 } 2794 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 2795 for (int i=0; i<N; i++) { 2796 res.add(policy.mAdminList.get(i).info.getComponent()); 2797 } 2798 return res; 2799 } 2800 } 2801 2802 @Override 2803 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 2804 if (!mHasFeature) { 2805 return false; 2806 } 2807 enforceFullCrossUsersPermission(userHandle); 2808 synchronized (this) { 2809 DevicePolicyData policy = getUserData(userHandle); 2810 final int N = policy.mAdminList.size(); 2811 for (int i=0; i<N; i++) { 2812 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 2813 return true; 2814 } 2815 } 2816 return false; 2817 } 2818 } 2819 2820 @Override 2821 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 2822 if (!mHasFeature) { 2823 return; 2824 } 2825 enforceFullCrossUsersPermission(userHandle); 2826 enforceUserUnlocked(userHandle); 2827 synchronized (this) { 2828 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2829 if (admin == null) { 2830 return; 2831 } 2832 // Active device/profile owners must remain active admins. 2833 if (isDeviceOwner(adminReceiver, userHandle) 2834 || isProfileOwner(adminReceiver, userHandle)) { 2835 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 2836 adminReceiver); 2837 return; 2838 } 2839 if (admin.getUid() != mInjector.binderGetCallingUid()) { 2840 mContext.enforceCallingOrSelfPermission( 2841 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2842 } 2843 long ident = mInjector.binderClearCallingIdentity(); 2844 try { 2845 removeActiveAdminLocked(adminReceiver, userHandle); 2846 } finally { 2847 mInjector.binderRestoreCallingIdentity(ident); 2848 } 2849 } 2850 } 2851 2852 @Override 2853 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 2854 ComponentName profileOwner = getProfileOwner(userHandle); 2855 try { 2856 // Profile challenge is supported on N or newer release. 2857 return profileOwner != null && 2858 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 2859 } catch (RemoteException e) { 2860 return false; 2861 } 2862 } 2863 2864 @Override 2865 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 2866 if (!mHasFeature) { 2867 return; 2868 } 2869 Preconditions.checkNotNull(who, "ComponentName is null"); 2870 validateQualityConstant(quality); 2871 2872 synchronized (this) { 2873 ActiveAdmin ap = getActiveAdminForCallerLocked( 2874 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 2875 if (ap.passwordQuality != quality) { 2876 ap.passwordQuality = quality; 2877 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 2878 } 2879 } 2880 } 2881 2882 @Override 2883 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 2884 if (!mHasFeature) { 2885 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2886 } 2887 enforceFullCrossUsersPermission(userHandle); 2888 synchronized (this) { 2889 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2890 2891 if (who != null) { 2892 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 2893 return admin != null ? admin.passwordQuality : mode; 2894 } 2895 2896 // Return the strictest policy across all participating admins. 2897 List<ActiveAdmin> admins = 2898 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 2899 final int N = admins.size(); 2900 for (int i = 0; i < N; i++) { 2901 ActiveAdmin admin = admins.get(i); 2902 if (mode < admin.passwordQuality) { 2903 mode = admin.passwordQuality; 2904 } 2905 } 2906 return mode; 2907 } 2908 } 2909 2910 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 2911 int userHandle, boolean parent) { 2912 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 2913 // If this user has a separate challenge, only return its restrictions. 2914 return getUserDataUnchecked(userHandle).mAdminList; 2915 } else { 2916 // Return all admins for this user and the profiles that are visible from this 2917 // user that do not use a separate work challenge. 2918 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 2919 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 2920 DevicePolicyData policy = getUserData(userInfo.id); 2921 if (!isManagedProfile(userInfo.id)) { 2922 admins.addAll(policy.mAdminList); 2923 } else { 2924 // For managed profiles, we always include the policies set on the parent 2925 // profile. Additionally, we include the ones set on the managed profile 2926 // if no separate challenge is in place. 2927 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 2928 final int N = policy.mAdminList.size(); 2929 for (int i = 0; i < N; i++) { 2930 ActiveAdmin admin = policy.mAdminList.get(i); 2931 if (admin.hasParentActiveAdmin()) { 2932 admins.add(admin.getParentActiveAdmin()); 2933 } 2934 if (!hasSeparateChallenge) { 2935 admins.add(admin); 2936 } 2937 } 2938 } 2939 } 2940 return admins; 2941 } 2942 } 2943 2944 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 2945 long ident = mInjector.binderClearCallingIdentity(); 2946 try { 2947 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 2948 } finally { 2949 mInjector.binderRestoreCallingIdentity(ident); 2950 } 2951 } 2952 2953 @Override 2954 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 2955 if (!mHasFeature) { 2956 return; 2957 } 2958 Preconditions.checkNotNull(who, "ComponentName is null"); 2959 synchronized (this) { 2960 ActiveAdmin ap = getActiveAdminForCallerLocked( 2961 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 2962 if (ap.minimumPasswordLength != length) { 2963 ap.minimumPasswordLength = length; 2964 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 2965 } 2966 } 2967 } 2968 2969 @Override 2970 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 2971 if (!mHasFeature) { 2972 return 0; 2973 } 2974 enforceFullCrossUsersPermission(userHandle); 2975 synchronized (this) { 2976 int length = 0; 2977 2978 if (who != null) { 2979 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 2980 return admin != null ? admin.minimumPasswordLength : length; 2981 } 2982 2983 // Return the strictest policy across all participating admins. 2984 List<ActiveAdmin> admins = 2985 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 2986 final int N = admins.size(); 2987 for (int i = 0; i < N; i++) { 2988 ActiveAdmin admin = admins.get(i); 2989 if (length < admin.minimumPasswordLength) { 2990 length = admin.minimumPasswordLength; 2991 } 2992 } 2993 return length; 2994 } 2995 } 2996 2997 @Override 2998 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 2999 if (!mHasFeature) { 3000 return; 3001 } 3002 Preconditions.checkNotNull(who, "ComponentName is null"); 3003 synchronized (this) { 3004 ActiveAdmin ap = getActiveAdminForCallerLocked( 3005 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3006 if (ap.passwordHistoryLength != length) { 3007 ap.passwordHistoryLength = length; 3008 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3009 } 3010 } 3011 } 3012 3013 @Override 3014 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 3015 if (!mHasFeature) { 3016 return 0; 3017 } 3018 enforceFullCrossUsersPermission(userHandle); 3019 synchronized (this) { 3020 int length = 0; 3021 3022 if (who != null) { 3023 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3024 return admin != null ? admin.passwordHistoryLength : length; 3025 } 3026 3027 // Return the strictest policy across all participating admins. 3028 List<ActiveAdmin> admins = 3029 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3030 final int N = admins.size(); 3031 for (int i = 0; i < N; i++) { 3032 ActiveAdmin admin = admins.get(i); 3033 if (length < admin.passwordHistoryLength) { 3034 length = admin.passwordHistoryLength; 3035 } 3036 } 3037 3038 return length; 3039 } 3040 } 3041 3042 @Override 3043 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 3044 if (!mHasFeature) { 3045 return; 3046 } 3047 Preconditions.checkNotNull(who, "ComponentName is null"); 3048 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 3049 final int userHandle = mInjector.userHandleGetCallingUserId(); 3050 synchronized (this) { 3051 ActiveAdmin ap = getActiveAdminForCallerLocked( 3052 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 3053 // Calling this API automatically bumps the expiration date 3054 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3055 ap.passwordExpirationDate = expiration; 3056 ap.passwordExpirationTimeout = timeout; 3057 if (timeout > 0L) { 3058 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 3059 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 3060 .format(new Date(expiration))); 3061 } 3062 saveSettingsLocked(userHandle); 3063 3064 // in case this is the first one, set the alarm on the appropriate user. 3065 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 3066 } 3067 } 3068 3069 /** 3070 * Return a single admin's expiration cycle time, or the min of all cycle times. 3071 * Returns 0 if not configured. 3072 */ 3073 @Override 3074 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 3075 if (!mHasFeature) { 3076 return 0L; 3077 } 3078 enforceFullCrossUsersPermission(userHandle); 3079 synchronized (this) { 3080 long timeout = 0L; 3081 3082 if (who != null) { 3083 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3084 return admin != null ? admin.passwordExpirationTimeout : timeout; 3085 } 3086 3087 // Return the strictest policy across all participating admins. 3088 List<ActiveAdmin> admins = 3089 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3090 final int N = admins.size(); 3091 for (int i = 0; i < N; i++) { 3092 ActiveAdmin admin = admins.get(i); 3093 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 3094 && timeout > admin.passwordExpirationTimeout)) { 3095 timeout = admin.passwordExpirationTimeout; 3096 } 3097 } 3098 return timeout; 3099 } 3100 } 3101 3102 @Override 3103 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3104 final int userId = UserHandle.getCallingUserId(); 3105 List<String> changedProviders = null; 3106 3107 synchronized (this) { 3108 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3109 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3110 if (activeAdmin.crossProfileWidgetProviders == null) { 3111 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 3112 } 3113 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3114 if (!providers.contains(packageName)) { 3115 providers.add(packageName); 3116 changedProviders = new ArrayList<>(providers); 3117 saveSettingsLocked(userId); 3118 } 3119 } 3120 3121 if (changedProviders != null) { 3122 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3123 return true; 3124 } 3125 3126 return false; 3127 } 3128 3129 @Override 3130 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3131 final int userId = UserHandle.getCallingUserId(); 3132 List<String> changedProviders = null; 3133 3134 synchronized (this) { 3135 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3136 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3137 if (activeAdmin.crossProfileWidgetProviders == null) { 3138 return false; 3139 } 3140 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3141 if (providers.remove(packageName)) { 3142 changedProviders = new ArrayList<>(providers); 3143 saveSettingsLocked(userId); 3144 } 3145 } 3146 3147 if (changedProviders != null) { 3148 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3149 return true; 3150 } 3151 3152 return false; 3153 } 3154 3155 @Override 3156 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 3157 synchronized (this) { 3158 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3159 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3160 if (activeAdmin.crossProfileWidgetProviders == null 3161 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3162 return null; 3163 } 3164 if (mInjector.binderIsCallingUidMyUid()) { 3165 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 3166 } else { 3167 return activeAdmin.crossProfileWidgetProviders; 3168 } 3169 } 3170 } 3171 3172 /** 3173 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 3174 * Returns 0 if not configured. 3175 */ 3176 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 3177 long timeout = 0L; 3178 3179 if (who != null) { 3180 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3181 return admin != null ? admin.passwordExpirationDate : timeout; 3182 } 3183 3184 // Return the strictest policy across all participating admins. 3185 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3186 final int N = admins.size(); 3187 for (int i = 0; i < N; i++) { 3188 ActiveAdmin admin = admins.get(i); 3189 if (timeout == 0L || (admin.passwordExpirationDate != 0 3190 && timeout > admin.passwordExpirationDate)) { 3191 timeout = admin.passwordExpirationDate; 3192 } 3193 } 3194 return timeout; 3195 } 3196 3197 @Override 3198 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 3199 if (!mHasFeature) { 3200 return 0L; 3201 } 3202 enforceFullCrossUsersPermission(userHandle); 3203 synchronized (this) { 3204 return getPasswordExpirationLocked(who, userHandle, parent); 3205 } 3206 } 3207 3208 @Override 3209 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 3210 if (!mHasFeature) { 3211 return; 3212 } 3213 Preconditions.checkNotNull(who, "ComponentName is null"); 3214 synchronized (this) { 3215 ActiveAdmin ap = getActiveAdminForCallerLocked( 3216 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3217 if (ap.minimumPasswordUpperCase != length) { 3218 ap.minimumPasswordUpperCase = length; 3219 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3220 } 3221 } 3222 } 3223 3224 @Override 3225 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 3226 if (!mHasFeature) { 3227 return 0; 3228 } 3229 enforceFullCrossUsersPermission(userHandle); 3230 synchronized (this) { 3231 int length = 0; 3232 3233 if (who != null) { 3234 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3235 return admin != null ? admin.minimumPasswordUpperCase : length; 3236 } 3237 3238 // Return the strictest policy across all participating admins. 3239 List<ActiveAdmin> admins = 3240 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3241 final int N = admins.size(); 3242 for (int i = 0; i < N; i++) { 3243 ActiveAdmin admin = admins.get(i); 3244 if (length < admin.minimumPasswordUpperCase) { 3245 length = admin.minimumPasswordUpperCase; 3246 } 3247 } 3248 return length; 3249 } 3250 } 3251 3252 @Override 3253 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 3254 Preconditions.checkNotNull(who, "ComponentName is null"); 3255 synchronized (this) { 3256 ActiveAdmin ap = getActiveAdminForCallerLocked( 3257 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3258 if (ap.minimumPasswordLowerCase != length) { 3259 ap.minimumPasswordLowerCase = length; 3260 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3261 } 3262 } 3263 } 3264 3265 @Override 3266 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 3267 if (!mHasFeature) { 3268 return 0; 3269 } 3270 enforceFullCrossUsersPermission(userHandle); 3271 synchronized (this) { 3272 int length = 0; 3273 3274 if (who != null) { 3275 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3276 return admin != null ? admin.minimumPasswordLowerCase : length; 3277 } 3278 3279 // Return the strictest policy across all participating admins. 3280 List<ActiveAdmin> admins = 3281 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3282 final int N = admins.size(); 3283 for (int i = 0; i < N; i++) { 3284 ActiveAdmin admin = admins.get(i); 3285 if (length < admin.minimumPasswordLowerCase) { 3286 length = admin.minimumPasswordLowerCase; 3287 } 3288 } 3289 return length; 3290 } 3291 } 3292 3293 @Override 3294 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 3295 if (!mHasFeature) { 3296 return; 3297 } 3298 Preconditions.checkNotNull(who, "ComponentName is null"); 3299 synchronized (this) { 3300 ActiveAdmin ap = getActiveAdminForCallerLocked( 3301 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3302 if (ap.minimumPasswordLetters != length) { 3303 ap.minimumPasswordLetters = length; 3304 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3305 } 3306 } 3307 } 3308 3309 @Override 3310 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 3311 if (!mHasFeature) { 3312 return 0; 3313 } 3314 enforceFullCrossUsersPermission(userHandle); 3315 synchronized (this) { 3316 int length = 0; 3317 3318 if (who != null) { 3319 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3320 return admin != null ? admin.minimumPasswordLetters : length; 3321 } 3322 3323 // Return the strictest policy across all participating admins. 3324 List<ActiveAdmin> admins = 3325 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3326 final int N = admins.size(); 3327 for (int i = 0; i < N; i++) { 3328 ActiveAdmin admin = admins.get(i); 3329 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3330 continue; 3331 } 3332 if (length < admin.minimumPasswordLetters) { 3333 length = admin.minimumPasswordLetters; 3334 } 3335 } 3336 return length; 3337 } 3338 } 3339 3340 @Override 3341 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 3342 if (!mHasFeature) { 3343 return; 3344 } 3345 Preconditions.checkNotNull(who, "ComponentName is null"); 3346 synchronized (this) { 3347 ActiveAdmin ap = getActiveAdminForCallerLocked( 3348 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3349 if (ap.minimumPasswordNumeric != length) { 3350 ap.minimumPasswordNumeric = length; 3351 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3352 } 3353 } 3354 } 3355 3356 @Override 3357 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 3358 if (!mHasFeature) { 3359 return 0; 3360 } 3361 enforceFullCrossUsersPermission(userHandle); 3362 synchronized (this) { 3363 int length = 0; 3364 3365 if (who != null) { 3366 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3367 return admin != null ? admin.minimumPasswordNumeric : length; 3368 } 3369 3370 // Return the strictest policy across all participating admins. 3371 List<ActiveAdmin> admins = 3372 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3373 final int N = admins.size(); 3374 for (int i = 0; i < N; i++) { 3375 ActiveAdmin admin = admins.get(i); 3376 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3377 continue; 3378 } 3379 if (length < admin.minimumPasswordNumeric) { 3380 length = admin.minimumPasswordNumeric; 3381 } 3382 } 3383 return length; 3384 } 3385 } 3386 3387 @Override 3388 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 3389 if (!mHasFeature) { 3390 return; 3391 } 3392 Preconditions.checkNotNull(who, "ComponentName is null"); 3393 synchronized (this) { 3394 ActiveAdmin ap = getActiveAdminForCallerLocked( 3395 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3396 if (ap.minimumPasswordSymbols != length) { 3397 ap.minimumPasswordSymbols = length; 3398 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3399 } 3400 } 3401 } 3402 3403 @Override 3404 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 3405 if (!mHasFeature) { 3406 return 0; 3407 } 3408 enforceFullCrossUsersPermission(userHandle); 3409 synchronized (this) { 3410 int length = 0; 3411 3412 if (who != null) { 3413 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3414 return admin != null ? admin.minimumPasswordSymbols : length; 3415 } 3416 3417 // Return the strictest policy across all participating admins. 3418 List<ActiveAdmin> admins = 3419 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3420 final int N = admins.size(); 3421 for (int i = 0; i < N; i++) { 3422 ActiveAdmin admin = admins.get(i); 3423 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3424 continue; 3425 } 3426 if (length < admin.minimumPasswordSymbols) { 3427 length = admin.minimumPasswordSymbols; 3428 } 3429 } 3430 return length; 3431 } 3432 } 3433 3434 @Override 3435 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 3436 if (!mHasFeature) { 3437 return; 3438 } 3439 Preconditions.checkNotNull(who, "ComponentName is null"); 3440 synchronized (this) { 3441 ActiveAdmin ap = getActiveAdminForCallerLocked( 3442 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3443 if (ap.minimumPasswordNonLetter != length) { 3444 ap.minimumPasswordNonLetter = length; 3445 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3446 } 3447 } 3448 } 3449 3450 @Override 3451 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 3452 if (!mHasFeature) { 3453 return 0; 3454 } 3455 enforceFullCrossUsersPermission(userHandle); 3456 synchronized (this) { 3457 int length = 0; 3458 3459 if (who != null) { 3460 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3461 return admin != null ? admin.minimumPasswordNonLetter : length; 3462 } 3463 3464 // Return the strictest policy across all participating admins. 3465 List<ActiveAdmin> admins = 3466 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3467 final int N = admins.size(); 3468 for (int i = 0; i < N; i++) { 3469 ActiveAdmin admin = admins.get(i); 3470 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3471 continue; 3472 } 3473 if (length < admin.minimumPasswordNonLetter) { 3474 length = admin.minimumPasswordNonLetter; 3475 } 3476 } 3477 return length; 3478 } 3479 } 3480 3481 @Override 3482 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 3483 if (!mHasFeature) { 3484 return true; 3485 } 3486 enforceFullCrossUsersPermission(userHandle); 3487 3488 synchronized (this) { 3489 // This API can only be called by an active device admin, 3490 // so try to retrieve it to check that the caller is one. 3491 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3492 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3493 return isActivePasswordSufficientForUserLocked(policy, userHandle, parent); 3494 } 3495 } 3496 3497 @Override 3498 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 3499 if (!mHasFeature) { 3500 return true; 3501 } 3502 enforceFullCrossUsersPermission(userHandle); 3503 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 3504 3505 synchronized (this) { 3506 int targetUser = getProfileParentId(userHandle); 3507 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false)); 3508 return isActivePasswordSufficientForUserLocked(policy, targetUser, false); 3509 } 3510 } 3511 3512 private boolean isActivePasswordSufficientForUserLocked( 3513 DevicePolicyData policy, int userHandle, boolean parent) { 3514 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle, parent) 3515 || policy.mActivePasswordLength < getPasswordMinimumLength( 3516 null, userHandle, parent)) { 3517 return false; 3518 } 3519 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3520 return true; 3521 } 3522 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase( 3523 null, userHandle, parent) 3524 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase( 3525 null, userHandle, parent) 3526 && policy.mActivePasswordLetters >= getPasswordMinimumLetters( 3527 null, userHandle, parent) 3528 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric( 3529 null, userHandle, parent) 3530 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols( 3531 null, userHandle, parent) 3532 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter( 3533 null, userHandle, parent); 3534 } 3535 3536 @Override 3537 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 3538 enforceFullCrossUsersPermission(userHandle); 3539 synchronized (this) { 3540 if (!isCallerWithSystemUid()) { 3541 // This API can only be called by an active device admin, 3542 // so try to retrieve it to check that the caller is one. 3543 getActiveAdminForCallerLocked( 3544 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 3545 } 3546 3547 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3548 3549 return policy.mFailedPasswordAttempts; 3550 } 3551 } 3552 3553 @Override 3554 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 3555 if (!mHasFeature) { 3556 return; 3557 } 3558 Preconditions.checkNotNull(who, "ComponentName is null"); 3559 synchronized (this) { 3560 // This API can only be called by an active device admin, 3561 // so try to retrieve it to check that the caller is one. 3562 getActiveAdminForCallerLocked( 3563 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 3564 ActiveAdmin ap = getActiveAdminForCallerLocked( 3565 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 3566 if (ap.maximumFailedPasswordsForWipe != num) { 3567 ap.maximumFailedPasswordsForWipe = num; 3568 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3569 } 3570 } 3571 } 3572 3573 @Override 3574 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 3575 if (!mHasFeature) { 3576 return 0; 3577 } 3578 enforceFullCrossUsersPermission(userHandle); 3579 synchronized (this) { 3580 ActiveAdmin admin = (who != null) 3581 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 3582 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 3583 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 3584 } 3585 } 3586 3587 @Override 3588 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 3589 if (!mHasFeature) { 3590 return UserHandle.USER_NULL; 3591 } 3592 enforceFullCrossUsersPermission(userHandle); 3593 synchronized (this) { 3594 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 3595 userHandle, parent); 3596 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 3597 } 3598 } 3599 3600 /** 3601 * Returns the admin with the strictest policy on maximum failed passwords for: 3602 * <ul> 3603 * <li>this user if it has a separate profile challenge, or 3604 * <li>this user and all profiles that don't have their own challenge otherwise. 3605 * </ul> 3606 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 3607 * the primary profile. 3608 * Returns {@code null} if no participating admin has that policy set. 3609 */ 3610 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 3611 int userHandle, boolean parent) { 3612 int count = 0; 3613 ActiveAdmin strictestAdmin = null; 3614 3615 // Return the strictest policy across all participating admins. 3616 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3617 final int N = admins.size(); 3618 for (int i = 0; i < N; i++) { 3619 ActiveAdmin admin = admins.get(i); 3620 if (admin.maximumFailedPasswordsForWipe == 3621 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 3622 continue; // No max number of failed passwords policy set for this profile. 3623 } 3624 3625 // We always favor the primary profile if several profiles have the same value set. 3626 int userId = admin.getUserHandle().getIdentifier(); 3627 if (count == 0 || 3628 count > admin.maximumFailedPasswordsForWipe || 3629 (count == admin.maximumFailedPasswordsForWipe && 3630 mUserManager.getUserInfo(userId).isPrimary())) { 3631 count = admin.maximumFailedPasswordsForWipe; 3632 strictestAdmin = admin; 3633 } 3634 } 3635 return strictestAdmin; 3636 } 3637 3638 @Override 3639 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 3640 if (!mHasFeature) { 3641 return false; 3642 } 3643 final int callingUid = mInjector.binderGetCallingUid(); 3644 final int userHandle = mInjector.userHandleGetCallingUserId(); 3645 3646 if (getCredentialOwner(userHandle, /* parent */ false) != userHandle) { 3647 throw new SecurityException("You can not change password for this profile because" 3648 + " it shares the password with the owner profile"); 3649 } 3650 3651 String password = passwordOrNull != null ? passwordOrNull : ""; 3652 3653 int quality; 3654 synchronized (this) { 3655 // If caller has PO (or DO), it can clear the password, so see if that's the case 3656 // first. 3657 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 3658 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 3659 if (admin == null) { 3660 // Otherwise, make sure the caller has any active admin with the right policy. 3661 admin = getActiveAdminForCallerLocked(null, 3662 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3663 } 3664 3665 final ComponentName adminComponent = admin.info.getComponent(); 3666 3667 // As of N, only profile owners and device owners can reset the password. 3668 if (!(isProfileOwner(adminComponent, userHandle) 3669 || isDeviceOwner(adminComponent, userHandle))) { 3670 final boolean preN = getTargetSdk(admin.info.getPackageName(), userHandle) 3671 <= android.os.Build.VERSION_CODES.M; 3672 // As of N, password resetting to empty/null is not allowed anymore. 3673 // TODO Should we allow DO/PO to set an empty password? 3674 if (TextUtils.isEmpty(password)) { 3675 if (!preN) { 3676 throw new SecurityException("Cannot call with null password"); 3677 } else { 3678 Slog.e(LOG_TAG, "Cannot call with null password"); 3679 return false; 3680 } 3681 } 3682 // As of N, password cannot be changed by the admin if it is already set. 3683 if (isLockScreenSecureUnchecked(userHandle)) { 3684 if (!preN) { 3685 throw new SecurityException("Admin cannot change current password"); 3686 } else { 3687 Slog.e(LOG_TAG, "Admin cannot change current password"); 3688 return false; 3689 } 3690 } 3691 } 3692 quality = getPasswordQuality(null, userHandle, /* parent */ false); 3693 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 3694 quality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3695 } 3696 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 3697 int realQuality = LockPatternUtils.computePasswordQuality(password); 3698 if (realQuality < quality 3699 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3700 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 3701 + Integer.toHexString(realQuality) 3702 + " does not meet required quality 0x" 3703 + Integer.toHexString(quality)); 3704 return false; 3705 } 3706 quality = Math.max(realQuality, quality); 3707 } 3708 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 3709 if (password.length() < length) { 3710 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 3711 + " does not meet required length " + length); 3712 return false; 3713 } 3714 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3715 int letters = 0; 3716 int uppercase = 0; 3717 int lowercase = 0; 3718 int numbers = 0; 3719 int symbols = 0; 3720 int nonletter = 0; 3721 for (int i = 0; i < password.length(); i++) { 3722 char c = password.charAt(i); 3723 if (c >= 'A' && c <= 'Z') { 3724 letters++; 3725 uppercase++; 3726 } else if (c >= 'a' && c <= 'z') { 3727 letters++; 3728 lowercase++; 3729 } else if (c >= '0' && c <= '9') { 3730 numbers++; 3731 nonletter++; 3732 } else { 3733 symbols++; 3734 nonletter++; 3735 } 3736 } 3737 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 3738 if(letters < neededLetters) { 3739 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 3740 + " does not meet required number of letters " + neededLetters); 3741 return false; 3742 } 3743 int neededNumbers = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 3744 if (numbers < neededNumbers) { 3745 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 3746 + " does not meet required number of numerical digits " 3747 + neededNumbers); 3748 return false; 3749 } 3750 int neededLowerCase = getPasswordMinimumLowerCase( 3751 null, userHandle, /* parent */ false); 3752 if (lowercase < neededLowerCase) { 3753 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 3754 + " does not meet required number of lowercase letters " 3755 + neededLowerCase); 3756 return false; 3757 } 3758 int neededUpperCase = getPasswordMinimumUpperCase( 3759 null, userHandle, /* parent */ false); 3760 if (uppercase < neededUpperCase) { 3761 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 3762 + " does not meet required number of uppercase letters " 3763 + neededUpperCase); 3764 return false; 3765 } 3766 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 3767 if (symbols < neededSymbols) { 3768 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 3769 + " does not meet required number of special symbols " + neededSymbols); 3770 return false; 3771 } 3772 int neededNonLetter = getPasswordMinimumNonLetter( 3773 null, userHandle, /* parent */ false); 3774 if (nonletter < neededNonLetter) { 3775 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 3776 + " does not meet required number of non-letter characters " 3777 + neededNonLetter); 3778 return false; 3779 } 3780 } 3781 } 3782 3783 DevicePolicyData policy = getUserData(userHandle); 3784 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 3785 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 3786 return false; 3787 } 3788 3789 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 3790 boolean doNotAskCredentialsOnBoot = 3791 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 3792 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 3793 setDoNotAskCredentialsOnBoot(); 3794 } 3795 3796 // Don't do this with the lock held, because it is going to call 3797 // back in to the service. 3798 final long ident = mInjector.binderClearCallingIdentity(); 3799 try { 3800 if (!TextUtils.isEmpty(password)) { 3801 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 3802 } else { 3803 mLockPatternUtils.clearLock(userHandle); 3804 } 3805 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 3806 if (requireEntry) { 3807 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 3808 UserHandle.USER_ALL); 3809 } 3810 synchronized (this) { 3811 int newOwner = requireEntry ? callingUid : -1; 3812 if (policy.mPasswordOwner != newOwner) { 3813 policy.mPasswordOwner = newOwner; 3814 saveSettingsLocked(userHandle); 3815 } 3816 } 3817 } finally { 3818 mInjector.binderRestoreCallingIdentity(ident); 3819 } 3820 3821 return true; 3822 } 3823 3824 private boolean isLockScreenSecureUnchecked(int userId) { 3825 long ident = mInjector.binderClearCallingIdentity(); 3826 try { 3827 return mLockPatternUtils.isSecure(userId); 3828 } finally { 3829 mInjector.binderRestoreCallingIdentity(ident); 3830 } 3831 } 3832 3833 private void setDoNotAskCredentialsOnBoot() { 3834 synchronized (this) { 3835 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3836 if (!policyData.doNotAskCredentialsOnBoot) { 3837 policyData.doNotAskCredentialsOnBoot = true; 3838 saveSettingsLocked(UserHandle.USER_SYSTEM); 3839 } 3840 } 3841 } 3842 3843 @Override 3844 public boolean getDoNotAskCredentialsOnBoot() { 3845 mContext.enforceCallingOrSelfPermission( 3846 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 3847 synchronized (this) { 3848 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3849 return policyData.doNotAskCredentialsOnBoot; 3850 } 3851 } 3852 3853 @Override 3854 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 3855 if (!mHasFeature) { 3856 return; 3857 } 3858 Preconditions.checkNotNull(who, "ComponentName is null"); 3859 final int userHandle = mInjector.userHandleGetCallingUserId(); 3860 synchronized (this) { 3861 ActiveAdmin ap = getActiveAdminForCallerLocked( 3862 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 3863 if (ap.maximumTimeToUnlock != timeMs) { 3864 ap.maximumTimeToUnlock = timeMs; 3865 saveSettingsLocked(userHandle); 3866 updateMaximumTimeToLockLocked(userHandle); 3867 } 3868 } 3869 } 3870 3871 void updateMaximumTimeToLockLocked(int userHandle) { 3872 // Calculate the min timeout for all profiles - including the ones with a separate 3873 // challenge. Ideally if the timeout only affected the profile challenge we'd lock that 3874 // challenge only and keep the screen on. However there is no easy way of doing that at the 3875 // moment so we set the screen off timeout regardless of whether it affects the parent user 3876 // or the profile challenge only. 3877 long timeMs = Long.MAX_VALUE; 3878 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3879 for (UserInfo userInfo : profiles) { 3880 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3881 final int N = policy.mAdminList.size(); 3882 for (int i = 0; i < N; i++) { 3883 ActiveAdmin admin = policy.mAdminList.get(i); 3884 if (admin.maximumTimeToUnlock > 0 3885 && timeMs > admin.maximumTimeToUnlock) { 3886 timeMs = admin.maximumTimeToUnlock; 3887 } 3888 } 3889 } 3890 3891 // We only store the last maximum time to lock on the parent profile. So if calling from a 3892 // managed profile, retrieve the policy for the parent. 3893 DevicePolicyData policy = getUserDataUnchecked(getProfileParentId(userHandle)); 3894 if (policy.mLastMaximumTimeToLock == timeMs) { 3895 return; 3896 } 3897 policy.mLastMaximumTimeToLock = timeMs; 3898 3899 final long ident = mInjector.binderClearCallingIdentity(); 3900 try { 3901 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 3902 // Make sure KEEP_SCREEN_ON is disabled, since that 3903 // would allow bypassing of the maximum time to lock. 3904 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 3905 } 3906 3907 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 3908 (int) Math.min(policy.mLastMaximumTimeToLock, Integer.MAX_VALUE)); 3909 } finally { 3910 mInjector.binderRestoreCallingIdentity(ident); 3911 } 3912 } 3913 3914 @Override 3915 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 3916 if (!mHasFeature) { 3917 return 0; 3918 } 3919 enforceFullCrossUsersPermission(userHandle); 3920 synchronized (this) { 3921 long time = 0; 3922 3923 if (who != null) { 3924 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3925 return admin != null ? admin.maximumTimeToUnlock : time; 3926 } 3927 3928 // Return the strictest policy across all participating admins. 3929 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 3930 userHandle, parent); 3931 final int N = admins.size(); 3932 for (int i = 0; i < N; i++) { 3933 ActiveAdmin admin = admins.get(i); 3934 if (time == 0) { 3935 time = admin.maximumTimeToUnlock; 3936 } else if (admin.maximumTimeToUnlock != 0 3937 && time > admin.maximumTimeToUnlock) { 3938 time = admin.maximumTimeToUnlock; 3939 } 3940 } 3941 return time; 3942 } 3943 } 3944 3945 @Override 3946 public void lockNow(boolean parent) { 3947 if (!mHasFeature) { 3948 return; 3949 } 3950 synchronized (this) { 3951 // This API can only be called by an active device admin, 3952 // so try to retrieve it to check that the caller is one. 3953 getActiveAdminForCallerLocked( 3954 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 3955 3956 int userToLock = mInjector.userHandleGetCallingUserId(); 3957 3958 // Unless this is a managed profile with work challenge enabled, lock all users. 3959 if (parent || !isSeparateProfileChallengeEnabled(userToLock)) { 3960 userToLock = UserHandle.USER_ALL; 3961 } 3962 final long ident = mInjector.binderClearCallingIdentity(); 3963 try { 3964 mLockPatternUtils.requireStrongAuth( 3965 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 3966 if (userToLock == UserHandle.USER_ALL) { 3967 // Power off the display 3968 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 3969 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 3970 mInjector.getIWindowManager().lockNow(null); 3971 } 3972 } catch (RemoteException e) { 3973 } finally { 3974 mInjector.binderRestoreCallingIdentity(ident); 3975 } 3976 } 3977 } 3978 3979 @Override 3980 public void enforceCanManageCaCerts(ComponentName who) { 3981 if (who == null) { 3982 if (!isCallerDelegatedCertInstaller()) { 3983 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 3984 } 3985 } else { 3986 synchronized (this) { 3987 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3988 } 3989 } 3990 } 3991 3992 private void enforceCanManageInstalledKeys(ComponentName who) { 3993 if (who == null) { 3994 if (!isCallerDelegatedCertInstaller()) { 3995 throw new SecurityException("who == null, but caller is not cert installer"); 3996 } 3997 } else { 3998 synchronized (this) { 3999 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4000 } 4001 } 4002 } 4003 4004 private boolean isCallerDelegatedCertInstaller() { 4005 final int callingUid = mInjector.binderGetCallingUid(); 4006 final int userHandle = UserHandle.getUserId(callingUid); 4007 synchronized (this) { 4008 final DevicePolicyData policy = getUserData(userHandle); 4009 if (policy.mDelegatedCertInstallerPackage == null) { 4010 return false; 4011 } 4012 4013 try { 4014 int uid = mContext.getPackageManager().getPackageUidAsUser( 4015 policy.mDelegatedCertInstallerPackage, userHandle); 4016 return uid == callingUid; 4017 } catch (NameNotFoundException e) { 4018 return false; 4019 } 4020 } 4021 } 4022 4023 @Override 4024 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 4025 enforceCanManageCaCerts(admin); 4026 4027 byte[] pemCert; 4028 try { 4029 X509Certificate cert = parseCert(certBuffer); 4030 pemCert = Credentials.convertToPem(cert); 4031 } catch (CertificateException ce) { 4032 Log.e(LOG_TAG, "Problem converting cert", ce); 4033 return false; 4034 } catch (IOException ioe) { 4035 Log.e(LOG_TAG, "Problem reading cert", ioe); 4036 return false; 4037 } 4038 4039 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4040 final long id = mInjector.binderClearCallingIdentity(); 4041 try { 4042 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4043 try { 4044 keyChainConnection.getService().installCaCertificate(pemCert); 4045 return true; 4046 } catch (RemoteException e) { 4047 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 4048 } finally { 4049 keyChainConnection.close(); 4050 } 4051 } catch (InterruptedException e1) { 4052 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 4053 Thread.currentThread().interrupt(); 4054 } finally { 4055 mInjector.binderRestoreCallingIdentity(id); 4056 } 4057 return false; 4058 } 4059 4060 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 4061 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 4062 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 4063 certBuffer)); 4064 } 4065 4066 @Override 4067 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 4068 enforceCanManageCaCerts(admin); 4069 4070 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4071 final long id = mInjector.binderClearCallingIdentity(); 4072 try { 4073 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4074 try { 4075 for (int i = 0 ; i < aliases.length; i++) { 4076 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 4077 } 4078 } catch (RemoteException e) { 4079 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 4080 } finally { 4081 keyChainConnection.close(); 4082 } 4083 } catch (InterruptedException ie) { 4084 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 4085 Thread.currentThread().interrupt(); 4086 } finally { 4087 mInjector.binderRestoreCallingIdentity(id); 4088 } 4089 } 4090 4091 @Override 4092 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias, 4093 boolean requestAccess) { 4094 enforceCanManageInstalledKeys(who); 4095 4096 final int callingUid = mInjector.binderGetCallingUid(); 4097 final long id = mInjector.binderClearCallingIdentity(); 4098 try { 4099 final KeyChainConnection keyChainConnection = 4100 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 4101 try { 4102 IKeyChainService keyChain = keyChainConnection.getService(); 4103 if (!keyChain.installKeyPair(privKey, cert, alias)) { 4104 return false; 4105 } 4106 if (requestAccess) { 4107 keyChain.setGrant(callingUid, alias, true); 4108 } 4109 return true; 4110 } catch (RemoteException e) { 4111 Log.e(LOG_TAG, "Installing certificate", e); 4112 } finally { 4113 keyChainConnection.close(); 4114 } 4115 } catch (InterruptedException e) { 4116 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 4117 Thread.currentThread().interrupt(); 4118 } finally { 4119 mInjector.binderRestoreCallingIdentity(id); 4120 } 4121 return false; 4122 } 4123 4124 @Override 4125 public boolean removeKeyPair(ComponentName who, String alias) { 4126 enforceCanManageInstalledKeys(who); 4127 4128 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4129 final long id = Binder.clearCallingIdentity(); 4130 try { 4131 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4132 try { 4133 IKeyChainService keyChain = keyChainConnection.getService(); 4134 return keyChain.removeKeyPair(alias); 4135 } catch (RemoteException e) { 4136 Log.e(LOG_TAG, "Removing keypair", e); 4137 } finally { 4138 keyChainConnection.close(); 4139 } 4140 } catch (InterruptedException e) { 4141 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 4142 Thread.currentThread().interrupt(); 4143 } finally { 4144 Binder.restoreCallingIdentity(id); 4145 } 4146 return false; 4147 } 4148 4149 @Override 4150 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 4151 final IBinder response) { 4152 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 4153 if (!isCallerWithSystemUid()) { 4154 return; 4155 } 4156 4157 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 4158 // If there is a profile owner, redirect to that; otherwise query the device owner. 4159 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 4160 if (aliasChooser == null && caller.isSystem()) { 4161 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 4162 if (deviceOwnerAdmin != null) { 4163 aliasChooser = deviceOwnerAdmin.info.getComponent(); 4164 } 4165 } 4166 if (aliasChooser == null) { 4167 sendPrivateKeyAliasResponse(null, response); 4168 return; 4169 } 4170 4171 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 4172 intent.setComponent(aliasChooser); 4173 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 4174 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 4175 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 4176 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 4177 4178 final long id = mInjector.binderClearCallingIdentity(); 4179 try { 4180 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 4181 @Override 4182 public void onReceive(Context context, Intent intent) { 4183 final String chosenAlias = getResultData(); 4184 sendPrivateKeyAliasResponse(chosenAlias, response); 4185 } 4186 }, null, Activity.RESULT_OK, null, null); 4187 } finally { 4188 mInjector.binderRestoreCallingIdentity(id); 4189 } 4190 } 4191 4192 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 4193 final IKeyChainAliasCallback keyChainAliasResponse = 4194 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 4195 new AsyncTask<Void, Void, Void>() { 4196 @Override 4197 protected Void doInBackground(Void... unused) { 4198 try { 4199 keyChainAliasResponse.alias(alias); 4200 } catch (Exception e) { 4201 // Catch everything (not just RemoteException): caller could throw a 4202 // RuntimeException back across processes. 4203 Log.e(LOG_TAG, "error while responding to callback", e); 4204 } 4205 return null; 4206 } 4207 }.execute(); 4208 } 4209 4210 @Override 4211 public void setCertInstallerPackage(ComponentName who, String installerPackage) 4212 throws SecurityException { 4213 int userHandle = UserHandle.getCallingUserId(); 4214 synchronized (this) { 4215 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4216 try { 4217 if (getTargetSdk(who.getPackageName(), userHandle) >= Build.VERSION_CODES.N) { 4218 if (installerPackage != null && 4219 !isPackageInstalledForUser(installerPackage, userHandle)) { 4220 throw new IllegalArgumentException("Package " + installerPackage 4221 + " is not installed on the current user"); 4222 } 4223 } 4224 } catch (RemoteException e) { 4225 } 4226 DevicePolicyData policy = getUserData(userHandle); 4227 policy.mDelegatedCertInstallerPackage = installerPackage; 4228 saveSettingsLocked(userHandle); 4229 } 4230 } 4231 4232 @Override 4233 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 4234 int userHandle = UserHandle.getCallingUserId(); 4235 synchronized (this) { 4236 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4237 DevicePolicyData policy = getUserData(userHandle); 4238 return policy.mDelegatedCertInstallerPackage; 4239 } 4240 } 4241 4242 @Override 4243 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage) 4244 throws SecurityException { 4245 synchronized (this) { 4246 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4247 } 4248 4249 final int userId = mInjector.userHandleGetCallingUserId(); 4250 final long token = mInjector.binderClearCallingIdentity(); 4251 try{ 4252 ConnectivityManager connectivityManager = (ConnectivityManager) 4253 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4254 return connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage); 4255 } finally { 4256 mInjector.binderRestoreCallingIdentity(token); 4257 } 4258 } 4259 4260 @Override 4261 public String getAlwaysOnVpnPackage(ComponentName admin) 4262 throws SecurityException { 4263 synchronized (this) { 4264 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4265 } 4266 4267 final int userId = mInjector.userHandleGetCallingUserId(); 4268 final long token = mInjector.binderClearCallingIdentity(); 4269 try{ 4270 ConnectivityManager connectivityManager = (ConnectivityManager) 4271 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4272 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 4273 } finally { 4274 mInjector.binderRestoreCallingIdentity(token); 4275 } 4276 } 4277 4278 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 4279 if (wipeExtRequested) { 4280 StorageManager sm = (StorageManager) mContext.getSystemService( 4281 Context.STORAGE_SERVICE); 4282 sm.wipeAdoptableDisks(); 4283 } 4284 try { 4285 RecoverySystem.rebootWipeUserData(mContext, reason); 4286 } catch (IOException | SecurityException e) { 4287 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 4288 } 4289 } 4290 4291 @Override 4292 public void wipeData(int flags) { 4293 if (!mHasFeature) { 4294 return; 4295 } 4296 final int userHandle = mInjector.userHandleGetCallingUserId(); 4297 enforceFullCrossUsersPermission(userHandle); 4298 synchronized (this) { 4299 // This API can only be called by an active device admin, 4300 // so try to retrieve it to check that the caller is one. 4301 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 4302 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 4303 4304 final String source = admin.info.getComponent().flattenToShortString(); 4305 4306 long ident = mInjector.binderClearCallingIdentity(); 4307 try { 4308 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 4309 if (!isDeviceOwner(admin.info.getComponent(), userHandle)) { 4310 throw new SecurityException( 4311 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 4312 } 4313 PersistentDataBlockManager manager = (PersistentDataBlockManager) 4314 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 4315 if (manager != null) { 4316 manager.wipe(); 4317 } 4318 } 4319 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 4320 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 4321 "DevicePolicyManager.wipeData() from " + source); 4322 } finally { 4323 mInjector.binderRestoreCallingIdentity(ident); 4324 } 4325 } 4326 } 4327 4328 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 4329 if (userHandle == UserHandle.USER_SYSTEM) { 4330 wipeDataLocked(wipeExtRequested, reason); 4331 } else { 4332 mHandler.post(new Runnable() { 4333 @Override 4334 public void run() { 4335 try { 4336 IActivityManager am = mInjector.getIActivityManager(); 4337 if (am.getCurrentUser().id == userHandle) { 4338 am.switchUser(UserHandle.USER_SYSTEM); 4339 } 4340 4341 boolean isManagedProfile = isManagedProfile(userHandle); 4342 if (!mUserManager.removeUser(userHandle)) { 4343 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 4344 } else if (isManagedProfile) { 4345 sendWipeProfileNotification(); 4346 } 4347 } catch (RemoteException re) { 4348 // Shouldn't happen 4349 } 4350 } 4351 }); 4352 } 4353 } 4354 4355 private void sendWipeProfileNotification() { 4356 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 4357 Notification notification = new Notification.Builder(mContext) 4358 .setSmallIcon(android.R.drawable.stat_sys_warning) 4359 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 4360 .setContentText(contentText) 4361 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 4362 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 4363 .build(); 4364 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 4365 } 4366 4367 private void clearWipeProfileNotification() { 4368 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 4369 } 4370 4371 @Override 4372 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 4373 if (!mHasFeature) { 4374 return; 4375 } 4376 enforceFullCrossUsersPermission(userHandle); 4377 mContext.enforceCallingOrSelfPermission( 4378 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4379 4380 synchronized (this) { 4381 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 4382 if (admin == null) { 4383 result.sendResult(null); 4384 return; 4385 } 4386 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 4387 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4388 intent.setComponent(admin.info.getComponent()); 4389 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 4390 null, new BroadcastReceiver() { 4391 @Override 4392 public void onReceive(Context context, Intent intent) { 4393 result.sendResult(getResultExtras(false)); 4394 } 4395 }, null, Activity.RESULT_OK, null, null); 4396 } 4397 } 4398 4399 @Override 4400 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 4401 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 4402 if (!mHasFeature) { 4403 return; 4404 } 4405 enforceFullCrossUsersPermission(userHandle); 4406 4407 // Managed Profile password can only be changed when it has a separate challenge. 4408 if (!isSeparateProfileChallengeEnabled(userHandle)) { 4409 enforceNotManagedProfile(userHandle, "set the active password"); 4410 } 4411 4412 mContext.enforceCallingOrSelfPermission( 4413 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4414 validateQualityConstant(quality); 4415 4416 DevicePolicyData policy = getUserData(userHandle); 4417 4418 long ident = mInjector.binderClearCallingIdentity(); 4419 try { 4420 synchronized (this) { 4421 policy.mActivePasswordQuality = quality; 4422 policy.mActivePasswordLength = length; 4423 policy.mActivePasswordLetters = letters; 4424 policy.mActivePasswordLowerCase = lowercase; 4425 policy.mActivePasswordUpperCase = uppercase; 4426 policy.mActivePasswordNumeric = numbers; 4427 policy.mActivePasswordSymbols = symbols; 4428 policy.mActivePasswordNonLetter = nonletter; 4429 policy.mFailedPasswordAttempts = 0; 4430 saveSettingsLocked(userHandle); 4431 updatePasswordExpirationsLocked(userHandle); 4432 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 4433 4434 // Send a broadcast to each profile using this password as its primary unlock. 4435 sendAdminCommandForLockscreenPoliciesLocked( 4436 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 4437 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 4438 } 4439 } finally { 4440 mInjector.binderRestoreCallingIdentity(ident); 4441 } 4442 } 4443 4444 /** 4445 * Called any time the device password is updated. Resets all password expiration clocks. 4446 */ 4447 private void updatePasswordExpirationsLocked(int userHandle) { 4448 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 4449 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4450 userHandle, /* parent */ false); 4451 final int N = admins.size(); 4452 for (int i = 0; i < N; i++) { 4453 ActiveAdmin admin = admins.get(i); 4454 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 4455 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 4456 long timeout = admin.passwordExpirationTimeout; 4457 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 4458 admin.passwordExpirationDate = expiration; 4459 } 4460 } 4461 for (int affectedUserId : affectedUserIds) { 4462 saveSettingsLocked(affectedUserId); 4463 } 4464 } 4465 4466 @Override 4467 public void reportFailedPasswordAttempt(int userHandle) { 4468 enforceFullCrossUsersPermission(userHandle); 4469 if (!isSeparateProfileChallengeEnabled(userHandle)) { 4470 enforceNotManagedProfile(userHandle, 4471 "report failed password attempt if separate profile challenge is not in place"); 4472 } 4473 mContext.enforceCallingOrSelfPermission( 4474 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4475 4476 final long ident = mInjector.binderClearCallingIdentity(); 4477 try { 4478 boolean wipeData = false; 4479 int identifier = 0; 4480 synchronized (this) { 4481 DevicePolicyData policy = getUserData(userHandle); 4482 policy.mFailedPasswordAttempts++; 4483 saveSettingsLocked(userHandle); 4484 if (mHasFeature) { 4485 ActiveAdmin strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4486 userHandle, /* parent */ false); 4487 int max = strictestAdmin != null 4488 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 4489 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 4490 // Wipe the user/profile associated with the policy that was violated. This 4491 // is not necessarily calling user: if the policy that fired was from a 4492 // managed profile rather than the main user profile, we wipe former only. 4493 wipeData = true; 4494 identifier = strictestAdmin.getUserHandle().getIdentifier(); 4495 } 4496 4497 sendAdminCommandForLockscreenPoliciesLocked( 4498 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 4499 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4500 } 4501 } 4502 if (wipeData) { 4503 // Call without holding lock. 4504 wipeDeviceOrUserLocked(false, identifier, 4505 "reportFailedPasswordAttempt()"); 4506 } 4507 } finally { 4508 mInjector.binderRestoreCallingIdentity(ident); 4509 } 4510 4511 if (mInjector.securityLogIsLoggingEnabled()) { 4512 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 4513 /*method strength*/ 1); 4514 } 4515 } 4516 4517 @Override 4518 public void reportSuccessfulPasswordAttempt(int userHandle) { 4519 enforceFullCrossUsersPermission(userHandle); 4520 mContext.enforceCallingOrSelfPermission( 4521 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4522 4523 synchronized (this) { 4524 DevicePolicyData policy = getUserData(userHandle); 4525 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 4526 long ident = mInjector.binderClearCallingIdentity(); 4527 try { 4528 policy.mFailedPasswordAttempts = 0; 4529 policy.mPasswordOwner = -1; 4530 saveSettingsLocked(userHandle); 4531 if (mHasFeature) { 4532 sendAdminCommandForLockscreenPoliciesLocked( 4533 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 4534 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4535 } 4536 } finally { 4537 mInjector.binderRestoreCallingIdentity(ident); 4538 } 4539 } 4540 } 4541 4542 if (mInjector.securityLogIsLoggingEnabled()) { 4543 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 4544 /*method strength*/ 1); 4545 } 4546 } 4547 4548 @Override 4549 public void reportFailedFingerprintAttempt(int userHandle) { 4550 enforceFullCrossUsersPermission(userHandle); 4551 mContext.enforceCallingOrSelfPermission( 4552 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4553 if (mInjector.securityLogIsLoggingEnabled()) { 4554 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 4555 /*method strength*/ 0); 4556 } 4557 } 4558 4559 @Override 4560 public void reportSuccessfulFingerprintAttempt(int userHandle) { 4561 enforceFullCrossUsersPermission(userHandle); 4562 mContext.enforceCallingOrSelfPermission( 4563 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4564 if (mInjector.securityLogIsLoggingEnabled()) { 4565 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 4566 /*method strength*/ 0); 4567 } 4568 } 4569 4570 @Override 4571 public void reportKeyguardDismissed(int userHandle) { 4572 enforceFullCrossUsersPermission(userHandle); 4573 mContext.enforceCallingOrSelfPermission( 4574 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4575 4576 if (mInjector.securityLogIsLoggingEnabled()) { 4577 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 4578 } 4579 } 4580 4581 @Override 4582 public void reportKeyguardSecured(int userHandle) { 4583 enforceFullCrossUsersPermission(userHandle); 4584 mContext.enforceCallingOrSelfPermission( 4585 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4586 4587 if (mInjector.securityLogIsLoggingEnabled()) { 4588 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 4589 } 4590 } 4591 4592 @Override 4593 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 4594 String exclusionList) { 4595 if (!mHasFeature) { 4596 return null; 4597 } 4598 synchronized(this) { 4599 Preconditions.checkNotNull(who, "ComponentName is null"); 4600 4601 // Only check if system user has set global proxy. We don't allow other users to set it. 4602 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4603 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4604 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 4605 4606 // Scan through active admins and find if anyone has already 4607 // set the global proxy. 4608 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 4609 for (ComponentName component : compSet) { 4610 ActiveAdmin ap = policy.mAdminMap.get(component); 4611 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 4612 // Another admin already sets the global proxy 4613 // Return it to the caller. 4614 return component; 4615 } 4616 } 4617 4618 // If the user is not system, don't set the global proxy. Fail silently. 4619 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 4620 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 4621 + UserHandle.getCallingUserId() + " is not permitted."); 4622 return null; 4623 } 4624 if (proxySpec == null) { 4625 admin.specifiesGlobalProxy = false; 4626 admin.globalProxySpec = null; 4627 admin.globalProxyExclusionList = null; 4628 } else { 4629 4630 admin.specifiesGlobalProxy = true; 4631 admin.globalProxySpec = proxySpec; 4632 admin.globalProxyExclusionList = exclusionList; 4633 } 4634 4635 // Reset the global proxy accordingly 4636 // Do this using system permissions, as apps cannot write to secure settings 4637 long origId = mInjector.binderClearCallingIdentity(); 4638 try { 4639 resetGlobalProxyLocked(policy); 4640 } finally { 4641 mInjector.binderRestoreCallingIdentity(origId); 4642 } 4643 return null; 4644 } 4645 } 4646 4647 @Override 4648 public ComponentName getGlobalProxyAdmin(int userHandle) { 4649 if (!mHasFeature) { 4650 return null; 4651 } 4652 enforceFullCrossUsersPermission(userHandle); 4653 synchronized(this) { 4654 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4655 // Scan through active admins and find if anyone has already 4656 // set the global proxy. 4657 final int N = policy.mAdminList.size(); 4658 for (int i = 0; i < N; i++) { 4659 ActiveAdmin ap = policy.mAdminList.get(i); 4660 if (ap.specifiesGlobalProxy) { 4661 // Device admin sets the global proxy 4662 // Return it to the caller. 4663 return ap.info.getComponent(); 4664 } 4665 } 4666 } 4667 // No device admin sets the global proxy. 4668 return null; 4669 } 4670 4671 @Override 4672 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 4673 synchronized (this) { 4674 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4675 } 4676 long token = mInjector.binderClearCallingIdentity(); 4677 try { 4678 ConnectivityManager connectivityManager = (ConnectivityManager) 4679 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4680 connectivityManager.setGlobalProxy(proxyInfo); 4681 } finally { 4682 mInjector.binderRestoreCallingIdentity(token); 4683 } 4684 } 4685 4686 private void resetGlobalProxyLocked(DevicePolicyData policy) { 4687 final int N = policy.mAdminList.size(); 4688 for (int i = 0; i < N; i++) { 4689 ActiveAdmin ap = policy.mAdminList.get(i); 4690 if (ap.specifiesGlobalProxy) { 4691 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 4692 return; 4693 } 4694 } 4695 // No device admins defining global proxies - reset global proxy settings to none 4696 saveGlobalProxyLocked(null, null); 4697 } 4698 4699 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 4700 if (exclusionList == null) { 4701 exclusionList = ""; 4702 } 4703 if (proxySpec == null) { 4704 proxySpec = ""; 4705 } 4706 // Remove white spaces 4707 proxySpec = proxySpec.trim(); 4708 String data[] = proxySpec.split(":"); 4709 int proxyPort = 8080; 4710 if (data.length > 1) { 4711 try { 4712 proxyPort = Integer.parseInt(data[1]); 4713 } catch (NumberFormatException e) {} 4714 } 4715 exclusionList = exclusionList.trim(); 4716 4717 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 4718 if (!proxyProperties.isValid()) { 4719 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 4720 return; 4721 } 4722 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 4723 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 4724 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 4725 exclusionList); 4726 } 4727 4728 /** 4729 * Set the storage encryption request for a single admin. Returns the new total request 4730 * status (for all admins). 4731 */ 4732 @Override 4733 public int setStorageEncryption(ComponentName who, boolean encrypt) { 4734 if (!mHasFeature) { 4735 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4736 } 4737 Preconditions.checkNotNull(who, "ComponentName is null"); 4738 final int userHandle = UserHandle.getCallingUserId(); 4739 synchronized (this) { 4740 // Check for permissions 4741 // Only system user can set storage encryption 4742 if (userHandle != UserHandle.USER_SYSTEM) { 4743 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 4744 + UserHandle.getCallingUserId() + " is not permitted."); 4745 return 0; 4746 } 4747 4748 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4749 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 4750 4751 // Quick exit: If the filesystem does not support encryption, we can exit early. 4752 if (!isEncryptionSupported()) { 4753 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4754 } 4755 4756 // (1) Record the value for the admin so it's sticky 4757 if (ap.encryptionRequested != encrypt) { 4758 ap.encryptionRequested = encrypt; 4759 saveSettingsLocked(userHandle); 4760 } 4761 4762 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4763 // (2) Compute "max" for all admins 4764 boolean newRequested = false; 4765 final int N = policy.mAdminList.size(); 4766 for (int i = 0; i < N; i++) { 4767 newRequested |= policy.mAdminList.get(i).encryptionRequested; 4768 } 4769 4770 // Notify OS of new request 4771 setEncryptionRequested(newRequested); 4772 4773 // Return the new global request status 4774 return newRequested 4775 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4776 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4777 } 4778 } 4779 4780 /** 4781 * Get the current storage encryption request status for a given admin, or aggregate of all 4782 * active admins. 4783 */ 4784 @Override 4785 public boolean getStorageEncryption(ComponentName who, int userHandle) { 4786 if (!mHasFeature) { 4787 return false; 4788 } 4789 enforceFullCrossUsersPermission(userHandle); 4790 synchronized (this) { 4791 // Check for permissions if a particular caller is specified 4792 if (who != null) { 4793 // When checking for a single caller, status is based on caller's request 4794 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 4795 return ap != null ? ap.encryptionRequested : false; 4796 } 4797 4798 // If no particular caller is specified, return the aggregate set of requests. 4799 // This is short circuited by returning true on the first hit. 4800 DevicePolicyData policy = getUserData(userHandle); 4801 final int N = policy.mAdminList.size(); 4802 for (int i = 0; i < N; i++) { 4803 if (policy.mAdminList.get(i).encryptionRequested) { 4804 return true; 4805 } 4806 } 4807 return false; 4808 } 4809 } 4810 4811 /** 4812 * Get the current encryption status of the device. 4813 */ 4814 @Override 4815 public int getStorageEncryptionStatus(int userHandle) { 4816 if (!mHasFeature) { 4817 // Ok to return current status. 4818 } 4819 enforceFullCrossUsersPermission(userHandle); 4820 return getEncryptionStatus(); 4821 } 4822 4823 /** 4824 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 4825 */ 4826 private boolean isEncryptionSupported() { 4827 // Note, this can be implemented as 4828 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4829 // But is provided as a separate internal method if there's a faster way to do a 4830 // simple check for supported-or-not. 4831 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4832 } 4833 4834 /** 4835 * Hook to low-levels: Reporting the current status of encryption. 4836 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 4837 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 4838 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, or 4839 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 4840 */ 4841 private int getEncryptionStatus() { 4842 String status = mInjector.systemPropertiesGet("ro.crypto.state", "unsupported"); 4843 if ("encrypted".equalsIgnoreCase(status)) { 4844 final long token = mInjector.binderClearCallingIdentity(); 4845 try { 4846 return LockPatternUtils.isDeviceEncrypted() 4847 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4848 : DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 4849 } finally { 4850 mInjector.binderRestoreCallingIdentity(token); 4851 } 4852 } else if ("unencrypted".equalsIgnoreCase(status)) { 4853 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4854 } else { 4855 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4856 } 4857 } 4858 4859 /** 4860 * Hook to low-levels: If needed, record the new admin setting for encryption. 4861 */ 4862 private void setEncryptionRequested(boolean encrypt) { 4863 } 4864 4865 4866 /** 4867 * Set whether the screen capture is disabled for the user managed by the specified admin. 4868 */ 4869 @Override 4870 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 4871 if (!mHasFeature) { 4872 return; 4873 } 4874 Preconditions.checkNotNull(who, "ComponentName is null"); 4875 final int userHandle = UserHandle.getCallingUserId(); 4876 synchronized (this) { 4877 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4878 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4879 if (ap.disableScreenCapture != disabled) { 4880 ap.disableScreenCapture = disabled; 4881 saveSettingsLocked(userHandle); 4882 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 4883 } 4884 } 4885 } 4886 4887 /** 4888 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 4889 * active admin (if given admin is null). 4890 */ 4891 @Override 4892 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 4893 if (!mHasFeature) { 4894 return false; 4895 } 4896 synchronized (this) { 4897 if (who != null) { 4898 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 4899 return (admin != null) ? admin.disableScreenCapture : false; 4900 } 4901 4902 DevicePolicyData policy = getUserData(userHandle); 4903 final int N = policy.mAdminList.size(); 4904 for (int i = 0; i < N; i++) { 4905 ActiveAdmin admin = policy.mAdminList.get(i); 4906 if (admin.disableScreenCapture) { 4907 return true; 4908 } 4909 } 4910 return false; 4911 } 4912 } 4913 4914 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 4915 final boolean disabled) { 4916 mHandler.post(new Runnable() { 4917 @Override 4918 public void run() { 4919 try { 4920 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 4921 } catch (RemoteException e) { 4922 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 4923 } 4924 } 4925 }); 4926 } 4927 4928 /** 4929 * Set whether auto time is required by the specified admin (must be device owner). 4930 */ 4931 @Override 4932 public void setAutoTimeRequired(ComponentName who, boolean required) { 4933 if (!mHasFeature) { 4934 return; 4935 } 4936 Preconditions.checkNotNull(who, "ComponentName is null"); 4937 final int userHandle = UserHandle.getCallingUserId(); 4938 synchronized (this) { 4939 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4940 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4941 if (admin.requireAutoTime != required) { 4942 admin.requireAutoTime = required; 4943 saveSettingsLocked(userHandle); 4944 } 4945 } 4946 4947 // Turn AUTO_TIME on in settings if it is required 4948 if (required) { 4949 long ident = mInjector.binderClearCallingIdentity(); 4950 try { 4951 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 4952 } finally { 4953 mInjector.binderRestoreCallingIdentity(ident); 4954 } 4955 } 4956 } 4957 4958 /** 4959 * Returns whether or not auto time is required by the device owner. 4960 */ 4961 @Override 4962 public boolean getAutoTimeRequired() { 4963 if (!mHasFeature) { 4964 return false; 4965 } 4966 synchronized (this) { 4967 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 4968 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 4969 } 4970 } 4971 4972 @Override 4973 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 4974 if (!mHasFeature) { 4975 return; 4976 } 4977 Preconditions.checkNotNull(who, "ComponentName is null"); 4978 // Allow setting this policy to true only if there is a split system user. 4979 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 4980 throw new UnsupportedOperationException( 4981 "Cannot force ephemeral users on systems without split system user."); 4982 } 4983 boolean removeAllUsers = false; 4984 synchronized (this) { 4985 final ActiveAdmin deviceOwner = 4986 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4987 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 4988 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 4989 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 4990 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 4991 removeAllUsers = forceEphemeralUsers; 4992 } 4993 } 4994 if (removeAllUsers) { 4995 long identitity = mInjector.binderClearCallingIdentity(); 4996 try { 4997 mUserManagerInternal.removeAllUsers(); 4998 } finally { 4999 mInjector.binderRestoreCallingIdentity(identitity); 5000 } 5001 } 5002 } 5003 5004 @Override 5005 public boolean getForceEphemeralUsers(ComponentName who) { 5006 if (!mHasFeature) { 5007 return false; 5008 } 5009 Preconditions.checkNotNull(who, "ComponentName is null"); 5010 synchronized (this) { 5011 final ActiveAdmin deviceOwner = 5012 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5013 return deviceOwner.forceEphemeralUsers; 5014 } 5015 } 5016 5017 private boolean isDeviceOwnerManagedSingleUserDevice() { 5018 synchronized (this) { 5019 if (!mOwners.hasDeviceOwner()) { 5020 return false; 5021 } 5022 } 5023 final long callingIdentity = mInjector.binderClearCallingIdentity(); 5024 try { 5025 if (mInjector.userManagerIsSplitSystemUser()) { 5026 // In split system user mode, only allow the case where the device owner is managing 5027 // the only non-system user of the device 5028 return (mUserManager.getUserCount() == 2 5029 && mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM); 5030 } else { 5031 return mUserManager.getUserCount() == 1; 5032 } 5033 } finally { 5034 mInjector.binderRestoreCallingIdentity(callingIdentity); 5035 } 5036 } 5037 5038 private void ensureDeviceOwnerManagingSingleUser(ComponentName who) throws SecurityException { 5039 synchronized (this) { 5040 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5041 } 5042 if (!isDeviceOwnerManagedSingleUserDevice()) { 5043 throw new SecurityException( 5044 "There should only be one user, managed by Device Owner"); 5045 } 5046 } 5047 5048 @Override 5049 public boolean requestBugreport(ComponentName who) { 5050 if (!mHasFeature) { 5051 return false; 5052 } 5053 Preconditions.checkNotNull(who, "ComponentName is null"); 5054 ensureDeviceOwnerManagingSingleUser(who); 5055 5056 if (mRemoteBugreportServiceIsActive.get() 5057 || (getDeviceOwnerRemoteBugreportUri() != null)) { 5058 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 5059 return false; 5060 } 5061 5062 final long callingIdentity = mInjector.binderClearCallingIdentity(); 5063 try { 5064 ActivityManagerNative.getDefault().requestBugReport( 5065 ActivityManager.BUGREPORT_OPTION_REMOTE); 5066 5067 mRemoteBugreportServiceIsActive.set(true); 5068 mRemoteBugreportSharingAccepted.set(false); 5069 registerRemoteBugreportReceivers(); 5070 mInjector.getNotificationManager().notify(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5071 RemoteBugreportUtils.buildNotification(mContext, 5072 RemoteBugreportUtils.NOTIFICATION_BUGREPORT_STARTED)); 5073 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 5074 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 5075 return true; 5076 } catch (RemoteException re) { 5077 // should never happen 5078 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 5079 return false; 5080 } finally { 5081 mInjector.binderRestoreCallingIdentity(callingIdentity); 5082 } 5083 } 5084 5085 synchronized void sendDeviceOwnerCommand(String action, Bundle extras) { 5086 Intent intent = new Intent(action); 5087 intent.setComponent(mOwners.getDeviceOwnerComponent()); 5088 if (extras != null) { 5089 intent.putExtras(extras); 5090 } 5091 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 5092 } 5093 5094 private synchronized String getDeviceOwnerRemoteBugreportUri() { 5095 return mOwners.getDeviceOwnerRemoteBugreportUri(); 5096 } 5097 5098 private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 5099 String bugreportHash) { 5100 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 5101 } 5102 5103 private void registerRemoteBugreportReceivers() { 5104 try { 5105 IntentFilter filterFinished = new IntentFilter( 5106 RemoteBugreportUtils.ACTION_REMOTE_BUGREPORT_DISPATCH, 5107 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 5108 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 5109 } catch (IntentFilter.MalformedMimeTypeException e) { 5110 // should never happen, as setting a constant 5111 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 5112 } 5113 IntentFilter filterConsent = new IntentFilter(); 5114 filterConsent.addAction(RemoteBugreportUtils.ACTION_REMOTE_BUGREPORT_SHARING_DECLINED); 5115 filterConsent.addAction(RemoteBugreportUtils.ACTION_REMOTE_BUGREPORT_SHARING_ACCEPTED); 5116 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 5117 } 5118 5119 private void onBugreportFinished(Intent intent) { 5120 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 5121 mRemoteBugreportServiceIsActive.set(false); 5122 Uri bugreportUri = intent.getData(); 5123 String bugreportUriString = null; 5124 if (bugreportUri != null) { 5125 bugreportUriString = bugreportUri.toString(); 5126 } 5127 String bugreportHash = intent.getStringExtra( 5128 RemoteBugreportUtils.EXTRA_REMOTE_BUGREPORT_HASH); 5129 if (mRemoteBugreportSharingAccepted.get()) { 5130 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 5131 mInjector.getNotificationManager().cancel(LOG_TAG, 5132 RemoteBugreportUtils.NOTIFICATION_ID); 5133 } else { 5134 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 5135 mInjector.getNotificationManager().notify(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5136 RemoteBugreportUtils.buildNotification(mContext, 5137 RemoteBugreportUtils.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED)); 5138 } 5139 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5140 } 5141 5142 private void onBugreportFailed() { 5143 mRemoteBugreportServiceIsActive.set(false); 5144 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 5145 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 5146 mRemoteBugreportSharingAccepted.set(false); 5147 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5148 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 5149 Bundle extras = new Bundle(); 5150 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 5151 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 5152 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 5153 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 5154 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5155 } 5156 5157 private void onBugreportSharingAccepted() { 5158 mRemoteBugreportSharingAccepted.set(true); 5159 String bugreportUriString = null; 5160 String bugreportHash = null; 5161 synchronized (this) { 5162 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 5163 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 5164 } 5165 if (bugreportUriString != null) { 5166 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 5167 } else if (mRemoteBugreportServiceIsActive.get()) { 5168 mInjector.getNotificationManager().notify(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5169 RemoteBugreportUtils.buildNotification(mContext, 5170 RemoteBugreportUtils.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED)); 5171 } 5172 } 5173 5174 private void onBugreportSharingDeclined() { 5175 if (mRemoteBugreportServiceIsActive.get()) { 5176 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 5177 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 5178 mRemoteBugreportServiceIsActive.set(false); 5179 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 5180 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5181 } 5182 mRemoteBugreportSharingAccepted.set(false); 5183 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5184 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 5185 } 5186 5187 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 5188 String bugreportHash) { 5189 ParcelFileDescriptor pfd = null; 5190 try { 5191 if (bugreportUriString == null) { 5192 throw new FileNotFoundException(); 5193 } 5194 Uri bugreportUri = Uri.parse(bugreportUriString); 5195 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 5196 5197 synchronized (this) { 5198 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 5199 intent.setComponent(mOwners.getDeviceOwnerComponent()); 5200 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 5201 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 5202 mContext.grantUriPermission(mOwners.getDeviceOwnerComponent().getPackageName(), 5203 bugreportUri, Intent.FLAG_GRANT_READ_URI_PERMISSION); 5204 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 5205 } 5206 } catch (FileNotFoundException e) { 5207 Bundle extras = new Bundle(); 5208 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 5209 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 5210 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 5211 } finally { 5212 try { 5213 if (pfd != null) { 5214 pfd.close(); 5215 } 5216 } catch (IOException ex) { 5217 // Ignore 5218 } 5219 mRemoteBugreportSharingAccepted.set(false); 5220 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5221 } 5222 } 5223 5224 /** 5225 * Disables all device cameras according to the specified admin. 5226 */ 5227 @Override 5228 public void setCameraDisabled(ComponentName who, boolean disabled) { 5229 if (!mHasFeature) { 5230 return; 5231 } 5232 Preconditions.checkNotNull(who, "ComponentName is null"); 5233 final int userHandle = mInjector.userHandleGetCallingUserId(); 5234 synchronized (this) { 5235 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5236 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 5237 if (ap.disableCamera != disabled) { 5238 ap.disableCamera = disabled; 5239 saveSettingsLocked(userHandle); 5240 } 5241 } 5242 // Tell the user manager that the restrictions have changed. 5243 pushUserRestrictions(userHandle); 5244 } 5245 5246 /** 5247 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 5248 * active admins. 5249 */ 5250 @Override 5251 public boolean getCameraDisabled(ComponentName who, int userHandle) { 5252 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 5253 } 5254 5255 private boolean getCameraDisabled(ComponentName who, int userHandle, 5256 boolean mergeDeviceOwnerRestriction) { 5257 if (!mHasFeature) { 5258 return false; 5259 } 5260 synchronized (this) { 5261 if (who != null) { 5262 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5263 return (admin != null) ? admin.disableCamera : false; 5264 } 5265 // First, see if DO has set it. If so, it's device-wide. 5266 if (mergeDeviceOwnerRestriction) { 5267 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5268 if (deviceOwner != null && deviceOwner.disableCamera) { 5269 return true; 5270 } 5271 } 5272 5273 // Then check each device admin on the user. 5274 DevicePolicyData policy = getUserData(userHandle); 5275 // Determine whether or not the device camera is disabled for any active admins. 5276 final int N = policy.mAdminList.size(); 5277 for (int i = 0; i < N; i++) { 5278 ActiveAdmin admin = policy.mAdminList.get(i); 5279 if (admin.disableCamera) { 5280 return true; 5281 } 5282 } 5283 return false; 5284 } 5285 } 5286 5287 @Override 5288 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 5289 if (!mHasFeature) { 5290 return; 5291 } 5292 Preconditions.checkNotNull(who, "ComponentName is null"); 5293 final int userHandle = mInjector.userHandleGetCallingUserId(); 5294 if (isManagedProfile(userHandle)) { 5295 if (parent) { 5296 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 5297 } else { 5298 which = which & PROFILE_KEYGUARD_FEATURES; 5299 } 5300 } 5301 synchronized (this) { 5302 ActiveAdmin ap = getActiveAdminForCallerLocked( 5303 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 5304 if (ap.disabledKeyguardFeatures != which) { 5305 ap.disabledKeyguardFeatures = which; 5306 saveSettingsLocked(userHandle); 5307 } 5308 } 5309 } 5310 5311 /** 5312 * Gets the disabled state for features in keyguard for the given admin, 5313 * or the aggregate of all active admins if who is null. 5314 */ 5315 @Override 5316 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 5317 if (!mHasFeature) { 5318 return 0; 5319 } 5320 enforceFullCrossUsersPermission(userHandle); 5321 final long ident = mInjector.binderClearCallingIdentity(); 5322 try { 5323 synchronized (this) { 5324 if (who != null) { 5325 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 5326 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 5327 } 5328 5329 final List<ActiveAdmin> admins; 5330 if (!parent && isManagedProfile(userHandle)) { 5331 // If we are being asked about a managed profile, just return keyguard features 5332 // disabled by admins in the profile. 5333 admins = getUserDataUnchecked(userHandle).mAdminList; 5334 } else { 5335 // Otherwise return those set by admins in the user and its profiles. 5336 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 5337 } 5338 5339 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 5340 final int N = admins.size(); 5341 for (int i = 0; i < N; i++) { 5342 ActiveAdmin admin = admins.get(i); 5343 int userId = admin.getUserHandle().getIdentifier(); 5344 boolean isRequestedUser = !parent && (userId == userHandle); 5345 if (isRequestedUser || !isManagedProfile(userId)) { 5346 // If we are being asked explicitly about this user 5347 // return all disabled features even if its a managed profile. 5348 which |= admin.disabledKeyguardFeatures; 5349 } else { 5350 // Otherwise a managed profile is only allowed to disable 5351 // some features on the parent user. 5352 which |= (admin.disabledKeyguardFeatures 5353 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 5354 } 5355 } 5356 return which; 5357 } 5358 } finally { 5359 mInjector.binderRestoreCallingIdentity(ident); 5360 } 5361 } 5362 5363 @Override 5364 public void setKeepUninstalledPackages(ComponentName who, List<String> packageList) { 5365 if (!mHasFeature) { 5366 return; 5367 } 5368 Preconditions.checkNotNull(who, "ComponentName is null"); 5369 Preconditions.checkNotNull(packageList, "packageList is null"); 5370 final int userHandle = UserHandle.getCallingUserId(); 5371 synchronized (this) { 5372 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5373 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5374 admin.keepUninstalledPackages = packageList; 5375 saveSettingsLocked(userHandle); 5376 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 5377 } 5378 } 5379 5380 @Override 5381 public List<String> getKeepUninstalledPackages(ComponentName who) { 5382 Preconditions.checkNotNull(who, "ComponentName is null"); 5383 if (!mHasFeature) { 5384 return null; 5385 } 5386 // TODO In split system user mode, allow apps on user 0 to query the list 5387 synchronized (this) { 5388 // Check if this is the device owner who is calling 5389 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5390 return getKeepUninstalledPackagesLocked(); 5391 } 5392 } 5393 5394 private List<String> getKeepUninstalledPackagesLocked() { 5395 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5396 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 5397 } 5398 5399 @Override 5400 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 5401 if (!mHasFeature) { 5402 return false; 5403 } 5404 if (admin == null 5405 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 5406 throw new IllegalArgumentException("Invalid component " + admin 5407 + " for device owner"); 5408 } 5409 synchronized (this) { 5410 enforceCanSetDeviceOwnerLocked(userId); 5411 if (getActiveAdminUncheckedLocked(admin, userId) == null) { 5412 throw new IllegalArgumentException("Not active admin: " + admin); 5413 } 5414 5415 // Shutting down backup manager service permanently. 5416 long ident = mInjector.binderClearCallingIdentity(); 5417 try { 5418 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, false); 5419 } catch (RemoteException e) { 5420 throw new IllegalStateException("Failed deactivating backup service.", e); 5421 } finally { 5422 mInjector.binderRestoreCallingIdentity(ident); 5423 } 5424 5425 mOwners.setDeviceOwner(admin, ownerName, userId); 5426 mOwners.writeDeviceOwner(); 5427 updateDeviceOwnerLocked(); 5428 setDeviceOwnerSystemPropertyLocked(); 5429 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 5430 5431 ident = mInjector.binderClearCallingIdentity(); 5432 try { 5433 // TODO Send to system too? 5434 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 5435 } finally { 5436 mInjector.binderRestoreCallingIdentity(ident); 5437 } 5438 return true; 5439 } 5440 } 5441 5442 public boolean isDeviceOwner(ComponentName who, int userId) { 5443 synchronized (this) { 5444 return mOwners.hasDeviceOwner() 5445 && mOwners.getDeviceOwnerUserId() == userId 5446 && mOwners.getDeviceOwnerComponent().equals(who); 5447 } 5448 } 5449 5450 public boolean isProfileOwner(ComponentName who, int userId) { 5451 final ComponentName profileOwner = getProfileOwner(userId); 5452 return who != null && who.equals(profileOwner); 5453 } 5454 5455 @Override 5456 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 5457 if (!mHasFeature) { 5458 return null; 5459 } 5460 if (!callingUserOnly) { 5461 enforceManageUsers(); 5462 } 5463 synchronized (this) { 5464 if (!mOwners.hasDeviceOwner()) { 5465 return null; 5466 } 5467 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 5468 mOwners.getDeviceOwnerUserId()) { 5469 return null; 5470 } 5471 return mOwners.getDeviceOwnerComponent(); 5472 } 5473 } 5474 5475 @Override 5476 public int getDeviceOwnerUserId() { 5477 if (!mHasFeature) { 5478 return UserHandle.USER_NULL; 5479 } 5480 enforceManageUsers(); 5481 synchronized (this) { 5482 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 5483 } 5484 } 5485 5486 /** 5487 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 5488 * MANAGE_USERS. 5489 */ 5490 @Override 5491 public String getDeviceOwnerName() { 5492 if (!mHasFeature) { 5493 return null; 5494 } 5495 enforceManageUsers(); 5496 synchronized (this) { 5497 if (!mOwners.hasDeviceOwner()) { 5498 return null; 5499 } 5500 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 5501 // Should setDeviceOwner/ProfileOwner still take a name? 5502 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 5503 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 5504 } 5505 } 5506 5507 // Returns the active device owner or null if there is no device owner. 5508 @VisibleForTesting 5509 ActiveAdmin getDeviceOwnerAdminLocked() { 5510 ComponentName component = mOwners.getDeviceOwnerComponent(); 5511 if (component == null) { 5512 return null; 5513 } 5514 5515 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 5516 final int n = policy.mAdminList.size(); 5517 for (int i = 0; i < n; i++) { 5518 ActiveAdmin admin = policy.mAdminList.get(i); 5519 if (component.equals(admin.info.getComponent())) { 5520 return admin; 5521 } 5522 } 5523 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 5524 return null; 5525 } 5526 5527 @Override 5528 public void clearDeviceOwner(String packageName) { 5529 Preconditions.checkNotNull(packageName, "packageName is null"); 5530 final int callingUid = mInjector.binderGetCallingUid(); 5531 try { 5532 int uid = mContext.getPackageManager().getPackageUidAsUser(packageName, 5533 UserHandle.getUserId(callingUid)); 5534 if (uid != callingUid) { 5535 throw new SecurityException("Invalid packageName"); 5536 } 5537 } catch (NameNotFoundException e) { 5538 throw new SecurityException(e); 5539 } 5540 synchronized (this) { 5541 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 5542 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 5543 if (!mOwners.hasDeviceOwner() 5544 || !deviceOwnerComponent.getPackageName().equals(packageName) 5545 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 5546 throw new SecurityException( 5547 "clearDeviceOwner can only be called by the device owner"); 5548 } 5549 enforceUserUnlocked(deviceOwnerUserId); 5550 5551 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 5552 if (admin != null) { 5553 admin.disableCamera = false; 5554 admin.userRestrictions = null; 5555 admin.forceEphemeralUsers = false; 5556 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 5557 } 5558 clearUserPoliciesLocked(deviceOwnerUserId); 5559 5560 mOwners.clearDeviceOwner(); 5561 mOwners.writeDeviceOwner(); 5562 updateDeviceOwnerLocked(); 5563 disableDeviceLoggingIfNotCompliant(); 5564 // Reactivate backup service. 5565 long ident = mInjector.binderClearCallingIdentity(); 5566 try { 5567 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 5568 5569 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 5570 } catch (RemoteException e) { 5571 throw new IllegalStateException("Failed reactivating backup service.", e); 5572 } finally { 5573 mInjector.binderRestoreCallingIdentity(ident); 5574 } 5575 } 5576 } 5577 5578 @Override 5579 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 5580 if (!mHasFeature) { 5581 return false; 5582 } 5583 if (who == null 5584 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 5585 throw new IllegalArgumentException("Component " + who 5586 + " not installed for userId:" + userHandle); 5587 } 5588 synchronized (this) { 5589 enforceCanSetProfileOwnerLocked(userHandle); 5590 5591 if (getActiveAdminUncheckedLocked(who, userHandle) == null) { 5592 throw new IllegalArgumentException("Not active admin: " + who); 5593 } 5594 5595 mOwners.setProfileOwner(who, ownerName, userHandle); 5596 mOwners.writeProfileOwner(userHandle); 5597 return true; 5598 } 5599 } 5600 5601 @Override 5602 public void clearProfileOwner(ComponentName who) { 5603 if (!mHasFeature) { 5604 return; 5605 } 5606 final UserHandle callingUser = mInjector.binderGetCallingUserHandle(); 5607 final int userId = callingUser.getIdentifier(); 5608 enforceNotManagedProfile(userId, "clear profile owner"); 5609 enforceUserUnlocked(userId); 5610 // Check if this is the profile owner who is calling 5611 final ActiveAdmin admin = 5612 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5613 synchronized (this) { 5614 admin.disableCamera = false; 5615 admin.userRestrictions = null; 5616 clearUserPoliciesLocked(userId); 5617 mOwners.removeProfileOwner(userId); 5618 mOwners.writeProfileOwner(userId); 5619 5620 final long ident = mInjector.binderClearCallingIdentity(); 5621 try { 5622 removeActiveAdminLocked(who, userId); 5623 } finally { 5624 mInjector.binderRestoreCallingIdentity(ident); 5625 } 5626 } 5627 } 5628 5629 @Override 5630 public boolean setDeviceOwnerLockScreenInfo(ComponentName who, String info) { 5631 Preconditions.checkNotNull(who, "ComponentName is null"); 5632 if (!mHasFeature) { 5633 return false; 5634 } 5635 5636 synchronized (this) { 5637 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5638 long token = mInjector.binderClearCallingIdentity(); 5639 try { 5640 mLockPatternUtils.setDeviceOwnerInfo(info); 5641 } finally { 5642 mInjector.binderRestoreCallingIdentity(token); 5643 } 5644 return true; 5645 } 5646 } 5647 5648 @Override 5649 public String getDeviceOwnerLockScreenInfo() { 5650 return mLockPatternUtils.getDeviceOwnerInfo(); 5651 } 5652 5653 private void clearUserPoliciesLocked(int userId) { 5654 // Reset some of the user-specific policies 5655 DevicePolicyData policy = getUserData(userId); 5656 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 5657 policy.mDelegatedCertInstallerPackage = null; 5658 policy.mApplicationRestrictionsManagingPackage = null; 5659 policy.mStatusBarDisabled = false; 5660 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 5661 saveSettingsLocked(userId); 5662 5663 final long ident = mInjector.binderClearCallingIdentity(); 5664 try { 5665 mIPackageManager.updatePermissionFlagsForAllApps( 5666 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 5667 0 /* flagValues */, userId); 5668 pushUserRestrictions(userId); 5669 } catch (RemoteException re) { 5670 } finally { 5671 mInjector.binderRestoreCallingIdentity(ident); 5672 } 5673 } 5674 5675 @Override 5676 public boolean hasUserSetupCompleted() { 5677 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 5678 } 5679 5680 private boolean hasUserSetupCompleted(int userHandle) { 5681 if (!mHasFeature) { 5682 return true; 5683 } 5684 return getUserData(userHandle).mUserSetupComplete; 5685 } 5686 5687 @Override 5688 public int getUserProvisioningState() { 5689 if (!mHasFeature) { 5690 return DevicePolicyManager.STATE_USER_UNMANAGED; 5691 } 5692 int userHandle = mInjector.userHandleGetCallingUserId(); 5693 return getUserProvisioningState(userHandle); 5694 } 5695 5696 private int getUserProvisioningState(int userHandle) { 5697 return getUserData(userHandle).mUserProvisioningState; 5698 } 5699 5700 @Override 5701 public void setUserProvisioningState(int newState, int userHandle) { 5702 if (!mHasFeature) { 5703 return; 5704 } 5705 5706 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 5707 && getManagedUserId(userHandle) == -1) { 5708 // No managed device, user or profile, so setting provisioning state makes no sense. 5709 throw new IllegalStateException("Not allowed to change provisioning state unless a " 5710 + "device or profile owner is set."); 5711 } 5712 5713 synchronized (this) { 5714 boolean transitionCheckNeeded = true; 5715 5716 // Calling identity/permission checks. 5717 final int callingUid = mInjector.binderGetCallingUid(); 5718 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 5719 // ADB shell can only move directly from un-managed to finalized as part of directly 5720 // setting profile-owner or device-owner. 5721 if (getUserProvisioningState(userHandle) != 5722 DevicePolicyManager.STATE_USER_UNMANAGED 5723 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 5724 throw new IllegalStateException("Not allowed to change provisioning state " 5725 + "unless current provisioning state is unmanaged, and new state is " 5726 + "finalized."); 5727 } 5728 transitionCheckNeeded = false; 5729 } else { 5730 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 5731 mContext.enforceCallingOrSelfPermission( 5732 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 5733 } 5734 5735 final DevicePolicyData policyData = getUserData(userHandle); 5736 if (transitionCheckNeeded) { 5737 // Optional state transition check for non-ADB case. 5738 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 5739 } 5740 policyData.mUserProvisioningState = newState; 5741 saveSettingsLocked(userHandle); 5742 } 5743 } 5744 5745 private void checkUserProvisioningStateTransition(int currentState, int newState) { 5746 // Valid transitions for normal use-cases. 5747 switch (currentState) { 5748 case DevicePolicyManager.STATE_USER_UNMANAGED: 5749 // Can move to any state from unmanaged (except itself as an edge case).. 5750 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 5751 return; 5752 } 5753 break; 5754 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 5755 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 5756 // Can only move to finalized from these states. 5757 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 5758 return; 5759 } 5760 break; 5761 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 5762 // Current user has a managed-profile, but current user is not managed, so 5763 // rather than moving to finalized state, go back to unmanaged once 5764 // profile provisioning is complete. 5765 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 5766 return; 5767 } 5768 break; 5769 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 5770 // Cannot transition out of finalized. 5771 break; 5772 } 5773 5774 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 5775 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 5776 + "from state [" + currentState + "]"); 5777 } 5778 5779 @Override 5780 public void setProfileEnabled(ComponentName who) { 5781 if (!mHasFeature) { 5782 return; 5783 } 5784 Preconditions.checkNotNull(who, "ComponentName is null"); 5785 synchronized (this) { 5786 // Check if this is the profile owner who is calling 5787 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5788 final int userId = UserHandle.getCallingUserId(); 5789 enforceManagedProfile(userId, "enable the profile"); 5790 5791 long id = mInjector.binderClearCallingIdentity(); 5792 try { 5793 mUserManager.setUserEnabled(userId); 5794 UserInfo parent = mUserManager.getProfileParent(userId); 5795 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 5796 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 5797 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 5798 Intent.FLAG_RECEIVER_FOREGROUND); 5799 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 5800 } finally { 5801 mInjector.binderRestoreCallingIdentity(id); 5802 } 5803 } 5804 } 5805 5806 @Override 5807 public void setProfileName(ComponentName who, String profileName) { 5808 Preconditions.checkNotNull(who, "ComponentName is null"); 5809 int userId = UserHandle.getCallingUserId(); 5810 // Check if this is the profile owner (includes device owner). 5811 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5812 5813 long id = mInjector.binderClearCallingIdentity(); 5814 try { 5815 mUserManager.setUserName(userId, profileName); 5816 } finally { 5817 mInjector.binderRestoreCallingIdentity(id); 5818 } 5819 } 5820 5821 @Override 5822 public ComponentName getProfileOwner(int userHandle) { 5823 if (!mHasFeature) { 5824 return null; 5825 } 5826 5827 synchronized (this) { 5828 return mOwners.getProfileOwnerComponent(userHandle); 5829 } 5830 } 5831 5832 // Returns the active profile owner for this user or null if the current user has no 5833 // profile owner. 5834 @VisibleForTesting 5835 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 5836 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 5837 if (profileOwner == null) { 5838 return null; 5839 } 5840 DevicePolicyData policy = getUserData(userHandle); 5841 final int n = policy.mAdminList.size(); 5842 for (int i = 0; i < n; i++) { 5843 ActiveAdmin admin = policy.mAdminList.get(i); 5844 if (profileOwner.equals(admin.info.getComponent())) { 5845 return admin; 5846 } 5847 } 5848 return null; 5849 } 5850 5851 @Override 5852 public String getProfileOwnerName(int userHandle) { 5853 if (!mHasFeature) { 5854 return null; 5855 } 5856 enforceManageUsers(); 5857 ComponentName profileOwner = getProfileOwner(userHandle); 5858 if (profileOwner == null) { 5859 return null; 5860 } 5861 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 5862 } 5863 5864 /** 5865 * Canonical name for a given package. 5866 */ 5867 private String getApplicationLabel(String packageName, int userHandle) { 5868 long token = mInjector.binderClearCallingIdentity(); 5869 try { 5870 final Context userContext; 5871 try { 5872 UserHandle handle = new UserHandle(userHandle); 5873 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 5874 } catch (PackageManager.NameNotFoundException nnfe) { 5875 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 5876 return null; 5877 } 5878 ApplicationInfo appInfo = userContext.getApplicationInfo(); 5879 CharSequence result = null; 5880 if (appInfo != null) { 5881 PackageManager pm = userContext.getPackageManager(); 5882 result = pm.getApplicationLabel(appInfo); 5883 } 5884 return result != null ? result.toString() : null; 5885 } finally { 5886 mInjector.binderRestoreCallingIdentity(token); 5887 } 5888 } 5889 5890 /** 5891 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 5892 * permission. 5893 * The profile owner can only be set before the user setup phase has completed, 5894 * except for: 5895 * - SYSTEM_UID 5896 * - adb if there are not accounts. 5897 */ 5898 private void enforceCanSetProfileOwnerLocked(int userHandle) { 5899 UserInfo info = mUserManager.getUserInfo(userHandle); 5900 if (info == null) { 5901 // User doesn't exist. 5902 throw new IllegalArgumentException( 5903 "Attempted to set profile owner for invalid userId: " + userHandle); 5904 } 5905 if (info.isGuest()) { 5906 throw new IllegalStateException("Cannot set a profile owner on a guest"); 5907 } 5908 if (mOwners.hasProfileOwner(userHandle)) { 5909 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 5910 + "is already set."); 5911 } 5912 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 5913 throw new IllegalStateException("Trying to set the profile owner, but the user " 5914 + "already has a device owner."); 5915 } 5916 int callingUid = mInjector.binderGetCallingUid(); 5917 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 5918 if (hasUserSetupCompleted(userHandle) && 5919 AccountManager.get(mContext).getAccountsAsUser(userHandle).length > 0) { 5920 throw new IllegalStateException("Not allowed to set the profile owner because " 5921 + "there are already some accounts on the profile"); 5922 } 5923 return; 5924 } 5925 mContext.enforceCallingOrSelfPermission( 5926 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 5927 if (hasUserSetupCompleted(userHandle) && !isCallerWithSystemUid()) { 5928 throw new IllegalStateException("Cannot set the profile owner on a user which is " 5929 + "already set-up"); 5930 } 5931 } 5932 5933 /** 5934 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 5935 * permission. 5936 * The device owner can only be set before the setup phase of the primary user has completed, 5937 * except for adb if no accounts or additional users are present on the device. 5938 */ 5939 private void enforceCanSetDeviceOwnerLocked(int userId) { 5940 if (mOwners.hasDeviceOwner()) { 5941 throw new IllegalStateException("Trying to set the device owner, but device owner " 5942 + "is already set."); 5943 } 5944 if (mOwners.hasProfileOwner(userId)) { 5945 throw new IllegalStateException("Trying to set the device owner, but the user already " 5946 + "has a profile owner."); 5947 } 5948 if (!mUserManager.isUserRunning(new UserHandle(userId))) { 5949 throw new IllegalStateException("User not running: " + userId); 5950 } 5951 5952 int callingUid = mInjector.binderGetCallingUid(); 5953 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 5954 if (!hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 5955 return; 5956 } 5957 // STOPSHIP Do proper check in split user mode 5958 if (!mInjector.userManagerIsSplitSystemUser()) { 5959 if (mUserManager.getUserCount() > 1) { 5960 throw new IllegalStateException( 5961 "Not allowed to set the device owner because there " 5962 + "are already several users on the device"); 5963 } 5964 if (AccountManager.get(mContext).getAccounts().length > 0) { 5965 throw new IllegalStateException( 5966 "Not allowed to set the device owner because there " 5967 + "are already some accounts on the device"); 5968 } 5969 } 5970 return; 5971 } 5972 // STOPSHIP check the caller UID with userId 5973 5974 mContext.enforceCallingOrSelfPermission( 5975 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 5976 // STOPSHIP Do proper check in split user mode 5977 if (!mInjector.userManagerIsSplitSystemUser()) { 5978 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 5979 throw new IllegalStateException("Cannot set the device owner if the device is " 5980 + "already set-up"); 5981 } 5982 } 5983 } 5984 5985 private void enforceUserUnlocked(int userId) { 5986 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 5987 "User must be running and unlocked"); 5988 } 5989 5990 private void enforceManageUsers() { 5991 final int callingUid = mInjector.binderGetCallingUid(); 5992 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 5993 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 5994 } 5995 } 5996 5997 private void enforceFullCrossUsersPermission(int userHandle) { 5998 enforceSystemUserOrPermission(userHandle, 5999 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 6000 } 6001 6002 private void enforceCrossUsersPermission(int userHandle) { 6003 enforceSystemUserOrPermission(userHandle, 6004 android.Manifest.permission.INTERACT_ACROSS_USERS); 6005 } 6006 6007 private void enforceSystemUserOrPermission(int userHandle, String permission) { 6008 if (userHandle < 0) { 6009 throw new IllegalArgumentException("Invalid userId " + userHandle); 6010 } 6011 final int callingUid = mInjector.binderGetCallingUid(); 6012 if (userHandle == UserHandle.getUserId(callingUid)) { 6013 return; 6014 } 6015 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 6016 mContext.enforceCallingOrSelfPermission(permission, 6017 "Must be system or have " + permission + " permission"); 6018 } 6019 } 6020 6021 private void enforceManagedProfile(int userHandle, String message) { 6022 if(!isManagedProfile(userHandle)) { 6023 throw new SecurityException("You can not " + message + " outside a managed profile."); 6024 } 6025 } 6026 6027 private void enforceNotManagedProfile(int userHandle, String message) { 6028 if(isManagedProfile(userHandle)) { 6029 throw new SecurityException("You can not " + message + " for a managed profile."); 6030 } 6031 } 6032 6033 private boolean isCallerWithSystemUid() { 6034 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 6035 } 6036 6037 private int getProfileParentId(int userHandle) { 6038 final long ident = mInjector.binderClearCallingIdentity(); 6039 try { 6040 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 6041 return parentUser != null ? parentUser.id : userHandle; 6042 } finally { 6043 mInjector.binderRestoreCallingIdentity(ident); 6044 } 6045 } 6046 6047 private int getCredentialOwner(int userHandle, boolean parent) { 6048 final long ident = mInjector.binderClearCallingIdentity(); 6049 try { 6050 if (parent) { 6051 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 6052 if (parentProfile != null) { 6053 userHandle = parentProfile.id; 6054 } 6055 } 6056 return mUserManager.getCredentialOwnerProfile(userHandle); 6057 } finally { 6058 mInjector.binderRestoreCallingIdentity(ident); 6059 } 6060 } 6061 6062 private boolean isManagedProfile(int userHandle) { 6063 long ident = mInjector.binderClearCallingIdentity(); 6064 try { 6065 return mUserManager.getUserInfo(userHandle).isManagedProfile(); 6066 } finally { 6067 mInjector.binderRestoreCallingIdentity(ident); 6068 } 6069 } 6070 6071 private void enableIfNecessary(String packageName, int userId) { 6072 try { 6073 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 6074 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 6075 userId); 6076 if (ai.enabledSetting 6077 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 6078 mIPackageManager.setApplicationEnabledSetting(packageName, 6079 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 6080 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 6081 } 6082 } catch (RemoteException e) { 6083 } 6084 } 6085 6086 @Override 6087 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 6088 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 6089 != PackageManager.PERMISSION_GRANTED) { 6090 6091 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 6092 + mInjector.binderGetCallingPid() 6093 + ", uid=" + mInjector.binderGetCallingUid()); 6094 return; 6095 } 6096 6097 synchronized (this) { 6098 pw.println("Current Device Policy Manager state:"); 6099 mOwners.dump(" ", pw); 6100 int userCount = mUserData.size(); 6101 for (int u = 0; u < userCount; u++) { 6102 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 6103 pw.println(); 6104 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 6105 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 6106 final int N = policy.mAdminList.size(); 6107 for (int i=0; i<N; i++) { 6108 ActiveAdmin ap = policy.mAdminList.get(i); 6109 if (ap != null) { 6110 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 6111 pw.println(":"); 6112 ap.dump(" ", pw); 6113 } 6114 } 6115 if (!policy.mRemovingAdmins.isEmpty()) { 6116 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 6117 + policy.mRemovingAdmins); 6118 } 6119 6120 pw.println(" "); 6121 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 6122 } 6123 } 6124 } 6125 6126 @Override 6127 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 6128 ComponentName activity) { 6129 Preconditions.checkNotNull(who, "ComponentName is null"); 6130 final int userHandle = UserHandle.getCallingUserId(); 6131 synchronized (this) { 6132 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6133 6134 long id = mInjector.binderClearCallingIdentity(); 6135 try { 6136 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 6137 } catch (RemoteException re) { 6138 // Shouldn't happen 6139 } finally { 6140 mInjector.binderRestoreCallingIdentity(id); 6141 } 6142 } 6143 } 6144 6145 @Override 6146 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 6147 Preconditions.checkNotNull(who, "ComponentName is null"); 6148 final int userHandle = UserHandle.getCallingUserId(); 6149 synchronized (this) { 6150 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6151 6152 long id = mInjector.binderClearCallingIdentity(); 6153 try { 6154 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 6155 } catch (RemoteException re) { 6156 // Shouldn't happen 6157 } finally { 6158 mInjector.binderRestoreCallingIdentity(id); 6159 } 6160 } 6161 } 6162 6163 @Override 6164 public void setApplicationRestrictionsManagingPackage(ComponentName admin, String packageName) { 6165 Preconditions.checkNotNull(admin, "ComponentName is null"); 6166 6167 final int userHandle = mInjector.userHandleGetCallingUserId(); 6168 synchronized (this) { 6169 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6170 if (packageName != null && !isPackageInstalledForUser(packageName, userHandle)) { 6171 throw new IllegalArgumentException("Package " + packageName + " is not installed " 6172 + "on the current user"); 6173 } 6174 DevicePolicyData policy = getUserData(userHandle); 6175 policy.mApplicationRestrictionsManagingPackage = packageName; 6176 saveSettingsLocked(userHandle); 6177 } 6178 } 6179 6180 @Override 6181 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 6182 Preconditions.checkNotNull(admin, "ComponentName is null"); 6183 6184 final int userHandle = mInjector.userHandleGetCallingUserId(); 6185 synchronized (this) { 6186 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6187 DevicePolicyData policy = getUserData(userHandle); 6188 return policy.mApplicationRestrictionsManagingPackage; 6189 } 6190 } 6191 6192 @Override 6193 public boolean isCallerApplicationRestrictionsManagingPackage() { 6194 final int callingUid = mInjector.binderGetCallingUid(); 6195 final int userHandle = UserHandle.getUserId(callingUid); 6196 synchronized (this) { 6197 final DevicePolicyData policy = getUserData(userHandle); 6198 if (policy.mApplicationRestrictionsManagingPackage == null) { 6199 return false; 6200 } 6201 6202 try { 6203 int uid = mContext.getPackageManager().getPackageUidAsUser( 6204 policy.mApplicationRestrictionsManagingPackage, userHandle); 6205 return uid == callingUid; 6206 } catch (NameNotFoundException e) { 6207 return false; 6208 } 6209 } 6210 } 6211 6212 private void enforceCanManageApplicationRestrictions(ComponentName who) { 6213 if (who != null) { 6214 synchronized (this) { 6215 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6216 } 6217 } else if (!isCallerApplicationRestrictionsManagingPackage()) { 6218 throw new SecurityException( 6219 "No admin component given, and caller cannot manage application restrictions " 6220 + "for other apps."); 6221 } 6222 } 6223 6224 @Override 6225 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 6226 enforceCanManageApplicationRestrictions(who); 6227 6228 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 6229 final long id = mInjector.binderClearCallingIdentity(); 6230 try { 6231 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 6232 } finally { 6233 mInjector.binderRestoreCallingIdentity(id); 6234 } 6235 } 6236 6237 @Override 6238 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 6239 PersistableBundle args) { 6240 if (!mHasFeature) { 6241 return; 6242 } 6243 Preconditions.checkNotNull(admin, "admin is null"); 6244 Preconditions.checkNotNull(agent, "agent is null"); 6245 final int userHandle = UserHandle.getCallingUserId(); 6246 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 6247 synchronized (this) { 6248 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 6249 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 6250 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 6251 saveSettingsLocked(userHandle); 6252 } 6253 } 6254 6255 @Override 6256 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 6257 ComponentName agent, int userHandle) { 6258 if (!mHasFeature) { 6259 return null; 6260 } 6261 Preconditions.checkNotNull(agent, "agent null"); 6262 enforceFullCrossUsersPermission(userHandle); 6263 6264 synchronized (this) { 6265 final String componentName = agent.flattenToString(); 6266 if (admin != null) { 6267 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 6268 if (ap == null) return null; 6269 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 6270 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 6271 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 6272 result.add(trustAgentInfo.options); 6273 return result; 6274 } 6275 6276 // Return strictest policy for this user and profiles that are visible from this user. 6277 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 6278 List<PersistableBundle> result = null; 6279 6280 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 6281 // of the options. If any admin doesn't have options, discard options for the rest 6282 // and return null. 6283 boolean allAdminsHaveOptions = true; 6284 for (UserInfo userInfo : profiles) { 6285 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 6286 final int N = policy.mAdminList.size(); 6287 for (int i=0; i < N; i++) { 6288 final ActiveAdmin active = policy.mAdminList.get(i); 6289 final boolean disablesTrust = (active.disabledKeyguardFeatures 6290 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 6291 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 6292 if (info != null && info.options != null && !info.options.isEmpty()) { 6293 if (disablesTrust) { 6294 if (result == null) { 6295 result = new ArrayList<PersistableBundle>(); 6296 } 6297 result.add(info.options); 6298 } else { 6299 Log.w(LOG_TAG, "Ignoring admin " + active.info 6300 + " because it has trust options but doesn't declare " 6301 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 6302 } 6303 } else if (disablesTrust) { 6304 allAdminsHaveOptions = false; 6305 break; 6306 } 6307 } 6308 } 6309 return allAdminsHaveOptions ? result : null; 6310 } 6311 } 6312 6313 @Override 6314 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 6315 Preconditions.checkNotNull(who, "ComponentName is null"); 6316 synchronized (this) { 6317 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6318 6319 int userHandle = UserHandle.getCallingUserId(); 6320 DevicePolicyData userData = getUserData(userHandle); 6321 userData.mRestrictionsProvider = permissionProvider; 6322 saveSettingsLocked(userHandle); 6323 } 6324 } 6325 6326 @Override 6327 public ComponentName getRestrictionsProvider(int userHandle) { 6328 synchronized (this) { 6329 if (!isCallerWithSystemUid()) { 6330 throw new SecurityException("Only the system can query the permission provider"); 6331 } 6332 DevicePolicyData userData = getUserData(userHandle); 6333 return userData != null ? userData.mRestrictionsProvider : null; 6334 } 6335 } 6336 6337 @Override 6338 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 6339 Preconditions.checkNotNull(who, "ComponentName is null"); 6340 int callingUserId = UserHandle.getCallingUserId(); 6341 synchronized (this) { 6342 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6343 6344 long id = mInjector.binderClearCallingIdentity(); 6345 try { 6346 UserInfo parent = mUserManager.getProfileParent(callingUserId); 6347 if (parent == null) { 6348 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 6349 + "parent"); 6350 return; 6351 } 6352 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 6353 mIPackageManager.addCrossProfileIntentFilter( 6354 filter, who.getPackageName(), callingUserId, parent.id, 0); 6355 } 6356 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 6357 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 6358 parent.id, callingUserId, 0); 6359 } 6360 } catch (RemoteException re) { 6361 // Shouldn't happen 6362 } finally { 6363 mInjector.binderRestoreCallingIdentity(id); 6364 } 6365 } 6366 } 6367 6368 @Override 6369 public void clearCrossProfileIntentFilters(ComponentName who) { 6370 Preconditions.checkNotNull(who, "ComponentName is null"); 6371 int callingUserId = UserHandle.getCallingUserId(); 6372 synchronized (this) { 6373 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6374 long id = mInjector.binderClearCallingIdentity(); 6375 try { 6376 UserInfo parent = mUserManager.getProfileParent(callingUserId); 6377 if (parent == null) { 6378 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 6379 + "parent"); 6380 return; 6381 } 6382 // Removing those that go from the managed profile to the parent. 6383 mIPackageManager.clearCrossProfileIntentFilters( 6384 callingUserId, who.getPackageName()); 6385 // And those that go from the parent to the managed profile. 6386 // If we want to support multiple managed profiles, we will have to only remove 6387 // those that have callingUserId as their target. 6388 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 6389 } catch (RemoteException re) { 6390 // Shouldn't happen 6391 } finally { 6392 mInjector.binderRestoreCallingIdentity(id); 6393 } 6394 } 6395 } 6396 6397 /** 6398 * @return true if all packages in enabledPackages are either in the list 6399 * permittedList or are a system app. 6400 */ 6401 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 6402 List<String> permittedList, int userIdToCheck) { 6403 long id = mInjector.binderClearCallingIdentity(); 6404 try { 6405 // If we have an enabled packages list for a managed profile the packages 6406 // we should check are installed for the parent user. 6407 UserInfo user = mUserManager.getUserInfo(userIdToCheck); 6408 if (user.isManagedProfile()) { 6409 userIdToCheck = user.profileGroupId; 6410 } 6411 6412 for (String enabledPackage : enabledPackages) { 6413 boolean systemService = false; 6414 try { 6415 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 6416 enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 6417 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 6418 } catch (RemoteException e) { 6419 Log.i(LOG_TAG, "Can't talk to package managed", e); 6420 } 6421 if (!systemService && !permittedList.contains(enabledPackage)) { 6422 return false; 6423 } 6424 } 6425 } finally { 6426 mInjector.binderRestoreCallingIdentity(id); 6427 } 6428 return true; 6429 } 6430 6431 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 6432 // Not using AccessibilityManager.getInstance because that guesses 6433 // at the user you require based on callingUid and caches for a given 6434 // process. 6435 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 6436 IAccessibilityManager service = iBinder == null 6437 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 6438 return new AccessibilityManager(mContext, service, userId); 6439 } 6440 6441 @Override 6442 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 6443 if (!mHasFeature) { 6444 return false; 6445 } 6446 Preconditions.checkNotNull(who, "ComponentName is null"); 6447 6448 if (packageList != null) { 6449 int userId = UserHandle.getCallingUserId(); 6450 List<AccessibilityServiceInfo> enabledServices = null; 6451 long id = mInjector.binderClearCallingIdentity(); 6452 try { 6453 UserInfo user = mUserManager.getUserInfo(userId); 6454 if (user.isManagedProfile()) { 6455 userId = user.profileGroupId; 6456 } 6457 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 6458 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 6459 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 6460 } finally { 6461 mInjector.binderRestoreCallingIdentity(id); 6462 } 6463 6464 if (enabledServices != null) { 6465 List<String> enabledPackages = new ArrayList<String>(); 6466 for (AccessibilityServiceInfo service : enabledServices) { 6467 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 6468 } 6469 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 6470 userId)) { 6471 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 6472 + "because it contains already enabled accesibility services."); 6473 return false; 6474 } 6475 } 6476 } 6477 6478 synchronized (this) { 6479 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6480 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6481 admin.permittedAccessiblityServices = packageList; 6482 saveSettingsLocked(UserHandle.getCallingUserId()); 6483 } 6484 return true; 6485 } 6486 6487 @Override 6488 public List getPermittedAccessibilityServices(ComponentName who) { 6489 if (!mHasFeature) { 6490 return null; 6491 } 6492 Preconditions.checkNotNull(who, "ComponentName is null"); 6493 6494 synchronized (this) { 6495 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6496 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6497 return admin.permittedAccessiblityServices; 6498 } 6499 } 6500 6501 @Override 6502 public List getPermittedAccessibilityServicesForUser(int userId) { 6503 if (!mHasFeature) { 6504 return null; 6505 } 6506 synchronized (this) { 6507 List<String> result = null; 6508 // If we have multiple profiles we return the intersection of the 6509 // permitted lists. This can happen in cases where we have a device 6510 // and profile owner. 6511 List<UserInfo> profiles = mUserManager.getProfiles(userId); 6512 final int PROFILES_SIZE = profiles.size(); 6513 for (int i = 0; i < PROFILES_SIZE; ++i) { 6514 // Just loop though all admins, only device or profiles 6515 // owners can have permitted lists set. 6516 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 6517 final int N = policy.mAdminList.size(); 6518 for (int j = 0; j < N; j++) { 6519 ActiveAdmin admin = policy.mAdminList.get(j); 6520 List<String> fromAdmin = admin.permittedAccessiblityServices; 6521 if (fromAdmin != null) { 6522 if (result == null) { 6523 result = new ArrayList<String>(fromAdmin); 6524 } else { 6525 result.retainAll(fromAdmin); 6526 } 6527 } 6528 } 6529 } 6530 6531 // If we have a permitted list add all system accessibility services. 6532 if (result != null) { 6533 long id = mInjector.binderClearCallingIdentity(); 6534 try { 6535 UserInfo user = mUserManager.getUserInfo(userId); 6536 if (user.isManagedProfile()) { 6537 userId = user.profileGroupId; 6538 } 6539 AccessibilityManager accessibilityManager = 6540 getAccessibilityManagerForUser(userId); 6541 List<AccessibilityServiceInfo> installedServices = 6542 accessibilityManager.getInstalledAccessibilityServiceList(); 6543 6544 if (installedServices != null) { 6545 for (AccessibilityServiceInfo service : installedServices) { 6546 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 6547 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 6548 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 6549 result.add(serviceInfo.packageName); 6550 } 6551 } 6552 } 6553 } finally { 6554 mInjector.binderRestoreCallingIdentity(id); 6555 } 6556 } 6557 6558 return result; 6559 } 6560 } 6561 6562 @Override 6563 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 6564 int userHandle) { 6565 if (!mHasFeature) { 6566 return true; 6567 } 6568 Preconditions.checkNotNull(who, "ComponentName is null"); 6569 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 6570 if (!isCallerWithSystemUid()){ 6571 throw new SecurityException( 6572 "Only the system can query if an accessibility service is disabled by admin"); 6573 } 6574 synchronized (this) { 6575 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6576 if (admin.permittedAccessiblityServices == null) { 6577 return true; 6578 } 6579 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 6580 admin.permittedAccessiblityServices, userHandle); 6581 } 6582 } 6583 6584 private boolean checkCallerIsCurrentUserOrProfile() { 6585 int callingUserId = UserHandle.getCallingUserId(); 6586 long token = mInjector.binderClearCallingIdentity(); 6587 try { 6588 UserInfo currentUser; 6589 UserInfo callingUser = mUserManager.getUserInfo(callingUserId); 6590 try { 6591 currentUser = mInjector.getIActivityManager().getCurrentUser(); 6592 } catch (RemoteException e) { 6593 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 6594 return false; 6595 } 6596 6597 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 6598 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 6599 + "of a user that isn't the foreground user."); 6600 return false; 6601 } 6602 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 6603 Slog.e(LOG_TAG, "Cannot set permitted input methods " 6604 + "of a user that isn't the foreground user."); 6605 return false; 6606 } 6607 } finally { 6608 mInjector.binderRestoreCallingIdentity(token); 6609 } 6610 return true; 6611 } 6612 6613 @Override 6614 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 6615 if (!mHasFeature) { 6616 return false; 6617 } 6618 Preconditions.checkNotNull(who, "ComponentName is null"); 6619 6620 // TODO When InputMethodManager supports per user calls remove 6621 // this restriction. 6622 if (!checkCallerIsCurrentUserOrProfile()) { 6623 return false; 6624 } 6625 6626 if (packageList != null) { 6627 // InputMethodManager fetches input methods for current user. 6628 // So this can only be set when calling user is the current user 6629 // or parent is current user in case of managed profiles. 6630 InputMethodManager inputMethodManager = 6631 mContext.getSystemService(InputMethodManager.class); 6632 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 6633 6634 if (enabledImes != null) { 6635 List<String> enabledPackages = new ArrayList<String>(); 6636 for (InputMethodInfo ime : enabledImes) { 6637 enabledPackages.add(ime.getPackageName()); 6638 } 6639 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 6640 mInjector.binderGetCallingUserHandle().getIdentifier())) { 6641 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 6642 + "because it contains already enabled input method."); 6643 return false; 6644 } 6645 } 6646 } 6647 6648 synchronized (this) { 6649 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6650 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6651 admin.permittedInputMethods = packageList; 6652 saveSettingsLocked(UserHandle.getCallingUserId()); 6653 } 6654 return true; 6655 } 6656 6657 @Override 6658 public List getPermittedInputMethods(ComponentName who) { 6659 if (!mHasFeature) { 6660 return null; 6661 } 6662 Preconditions.checkNotNull(who, "ComponentName is null"); 6663 6664 synchronized (this) { 6665 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6666 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6667 return admin.permittedInputMethods; 6668 } 6669 } 6670 6671 @Override 6672 public List getPermittedInputMethodsForCurrentUser() { 6673 UserInfo currentUser; 6674 try { 6675 currentUser = mInjector.getIActivityManager().getCurrentUser(); 6676 } catch (RemoteException e) { 6677 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 6678 // Activity managed is dead, just allow all IMEs 6679 return null; 6680 } 6681 6682 int userId = currentUser.id; 6683 synchronized (this) { 6684 List<String> result = null; 6685 // If we have multiple profiles we return the intersection of the 6686 // permitted lists. This can happen in cases where we have a device 6687 // and profile owner. 6688 List<UserInfo> profiles = mUserManager.getProfiles(userId); 6689 final int PROFILES_SIZE = profiles.size(); 6690 for (int i = 0; i < PROFILES_SIZE; ++i) { 6691 // Just loop though all admins, only device or profiles 6692 // owners can have permitted lists set. 6693 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 6694 final int N = policy.mAdminList.size(); 6695 for (int j = 0; j < N; j++) { 6696 ActiveAdmin admin = policy.mAdminList.get(j); 6697 List<String> fromAdmin = admin.permittedInputMethods; 6698 if (fromAdmin != null) { 6699 if (result == null) { 6700 result = new ArrayList<String>(fromAdmin); 6701 } else { 6702 result.retainAll(fromAdmin); 6703 } 6704 } 6705 } 6706 } 6707 6708 // If we have a permitted list add all system input methods. 6709 if (result != null) { 6710 InputMethodManager inputMethodManager = 6711 mContext.getSystemService(InputMethodManager.class); 6712 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 6713 long id = mInjector.binderClearCallingIdentity(); 6714 try { 6715 if (imes != null) { 6716 for (InputMethodInfo ime : imes) { 6717 ServiceInfo serviceInfo = ime.getServiceInfo(); 6718 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 6719 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 6720 result.add(serviceInfo.packageName); 6721 } 6722 } 6723 } 6724 } finally { 6725 mInjector.binderRestoreCallingIdentity(id); 6726 } 6727 } 6728 return result; 6729 } 6730 } 6731 6732 @Override 6733 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 6734 int userHandle) { 6735 if (!mHasFeature) { 6736 return true; 6737 } 6738 Preconditions.checkNotNull(who, "ComponentName is null"); 6739 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 6740 if (!isCallerWithSystemUid()) { 6741 throw new SecurityException( 6742 "Only the system can query if an input method is disabled by admin"); 6743 } 6744 synchronized (this) { 6745 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6746 if (admin.permittedInputMethods == null) { 6747 return true; 6748 } 6749 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 6750 admin.permittedInputMethods, userHandle); 6751 } 6752 } 6753 6754 private void sendAdminEnabledBroadcastLocked(int userHandle) { 6755 DevicePolicyData policyData = getUserData(userHandle); 6756 if (policyData.mAdminBroadcastPending) { 6757 // Send the initialization data to profile owner and delete the data 6758 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 6759 if (admin != null) { 6760 PersistableBundle initBundle = policyData.mInitBundle; 6761 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 6762 initBundle == null ? null : new Bundle(initBundle), null); 6763 } 6764 policyData.mInitBundle = null; 6765 policyData.mAdminBroadcastPending = false; 6766 saveSettingsLocked(userHandle); 6767 } 6768 } 6769 6770 @Override 6771 public UserHandle createAndManageUser(ComponentName admin, String name, 6772 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 6773 Preconditions.checkNotNull(admin, "admin is null"); 6774 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 6775 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 6776 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 6777 + admin + " are not in the same package"); 6778 } 6779 // Only allow the system user to use this method 6780 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 6781 throw new SecurityException("createAndManageUser was called from non-system user"); 6782 } 6783 if (!mInjector.userManagerIsSplitSystemUser() 6784 && (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 6785 throw new IllegalArgumentException( 6786 "Ephemeral users are only supported on systems with a split system user."); 6787 } 6788 // Create user. 6789 UserHandle user = null; 6790 synchronized (this) { 6791 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6792 6793 final long id = mInjector.binderClearCallingIdentity(); 6794 try { 6795 int userInfoFlags = 0; 6796 if ((flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 6797 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 6798 } 6799 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 6800 userInfoFlags); 6801 if (userInfo != null) { 6802 user = userInfo.getUserHandle(); 6803 } 6804 } finally { 6805 mInjector.binderRestoreCallingIdentity(id); 6806 } 6807 } 6808 if (user == null) { 6809 return null; 6810 } 6811 // Set admin. 6812 final long id = mInjector.binderClearCallingIdentity(); 6813 try { 6814 final String adminPkg = admin.getPackageName(); 6815 6816 final int userHandle = user.getIdentifier(); 6817 try { 6818 // Install the profile owner if not present. 6819 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 6820 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle); 6821 } 6822 } catch (RemoteException e) { 6823 Slog.e(LOG_TAG, "Failed to make remote calls for createAndManageUser, " 6824 + "removing created user", e); 6825 mUserManager.removeUser(user.getIdentifier()); 6826 return null; 6827 } 6828 6829 setActiveAdmin(profileOwner, true, userHandle); 6830 // User is not started yet, the broadcast by setActiveAdmin will not be received. 6831 // So we store adminExtras for broadcasting when the user starts for first time. 6832 synchronized(this) { 6833 DevicePolicyData policyData = getUserData(userHandle); 6834 policyData.mInitBundle = adminExtras; 6835 policyData.mAdminBroadcastPending = true; 6836 saveSettingsLocked(userHandle); 6837 } 6838 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 6839 setProfileOwner(profileOwner, ownerName, userHandle); 6840 6841 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 6842 Settings.Secure.putIntForUser(mContext.getContentResolver(), 6843 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 6844 } 6845 6846 return user; 6847 } finally { 6848 mInjector.binderRestoreCallingIdentity(id); 6849 } 6850 } 6851 6852 @Override 6853 public boolean removeUser(ComponentName who, UserHandle userHandle) { 6854 Preconditions.checkNotNull(who, "ComponentName is null"); 6855 synchronized (this) { 6856 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6857 6858 long id = mInjector.binderClearCallingIdentity(); 6859 try { 6860 return mUserManager.removeUser(userHandle.getIdentifier()); 6861 } finally { 6862 mInjector.binderRestoreCallingIdentity(id); 6863 } 6864 } 6865 } 6866 6867 @Override 6868 public boolean switchUser(ComponentName who, UserHandle userHandle) { 6869 Preconditions.checkNotNull(who, "ComponentName is null"); 6870 synchronized (this) { 6871 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6872 6873 long id = mInjector.binderClearCallingIdentity(); 6874 try { 6875 int userId = UserHandle.USER_SYSTEM; 6876 if (userHandle != null) { 6877 userId = userHandle.getIdentifier(); 6878 } 6879 return mInjector.getIActivityManager().switchUser(userId); 6880 } catch (RemoteException e) { 6881 Log.e(LOG_TAG, "Couldn't switch user", e); 6882 return false; 6883 } finally { 6884 mInjector.binderRestoreCallingIdentity(id); 6885 } 6886 } 6887 } 6888 6889 @Override 6890 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 6891 enforceCanManageApplicationRestrictions(who); 6892 6893 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 6894 final long id = mInjector.binderClearCallingIdentity(); 6895 try { 6896 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 6897 // if no restrictions were saved, mUserManager.getApplicationRestrictions 6898 // returns null, but DPM method should return an empty Bundle as per JavaDoc 6899 return bundle != null ? bundle : Bundle.EMPTY; 6900 } finally { 6901 mInjector.binderRestoreCallingIdentity(id); 6902 } 6903 } 6904 6905 @Override 6906 public String[] setPackagesSuspended(ComponentName who, String[] packageNames, 6907 boolean suspended) { 6908 Preconditions.checkNotNull(who, "ComponentName is null"); 6909 int callingUserId = UserHandle.getCallingUserId(); 6910 synchronized (this) { 6911 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6912 6913 long id = mInjector.binderClearCallingIdentity(); 6914 try { 6915 return mIPackageManager.setPackagesSuspendedAsUser( 6916 packageNames, suspended, callingUserId); 6917 } catch (RemoteException re) { 6918 // Shouldn't happen. 6919 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 6920 } finally { 6921 mInjector.binderRestoreCallingIdentity(id); 6922 } 6923 return packageNames; 6924 } 6925 } 6926 6927 @Override 6928 public boolean getPackageSuspended(ComponentName who, String packageName) { 6929 Preconditions.checkNotNull(who, "ComponentName is null"); 6930 int callingUserId = UserHandle.getCallingUserId(); 6931 synchronized (this) { 6932 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6933 6934 long id = mInjector.binderClearCallingIdentity(); 6935 try { 6936 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 6937 } catch (RemoteException re) { 6938 // Shouldn't happen. 6939 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 6940 } finally { 6941 mInjector.binderRestoreCallingIdentity(id); 6942 } 6943 return false; 6944 } 6945 } 6946 6947 @Override 6948 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 6949 Preconditions.checkNotNull(who, "ComponentName is null"); 6950 if (!UserRestrictionsUtils.isValidRestriction(key)) { 6951 return; 6952 } 6953 6954 final int userHandle = mInjector.userHandleGetCallingUserId(); 6955 synchronized (this) { 6956 ActiveAdmin activeAdmin = 6957 getActiveAdminForCallerLocked(who, 6958 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6959 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 6960 if (isDeviceOwner) { 6961 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 6962 throw new SecurityException("Device owner cannot set user restriction " + key); 6963 } 6964 } else { // profile owner 6965 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 6966 throw new SecurityException("Profile owner cannot set user restriction " + key); 6967 } 6968 } 6969 6970 // Save the restriction to ActiveAdmin. 6971 activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner); 6972 saveSettingsLocked(userHandle); 6973 6974 pushUserRestrictions(userHandle); 6975 6976 sendChangedNotification(userHandle); 6977 } 6978 } 6979 6980 private void pushUserRestrictions(int userId) { 6981 synchronized (this) { 6982 final Bundle global; 6983 final Bundle local = new Bundle(); 6984 if (mOwners.isDeviceOwnerUserId(userId)) { 6985 global = new Bundle(); 6986 6987 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6988 if (deviceOwner == null) { 6989 return; // Shouldn't happen. 6990 } 6991 6992 UserRestrictionsUtils.sortToGlobalAndLocal(deviceOwner.userRestrictions, 6993 global, local); 6994 // DO can disable camera globally. 6995 if (deviceOwner.disableCamera) { 6996 global.putBoolean(UserManager.DISALLOW_CAMERA, true); 6997 } 6998 } else { 6999 global = null; 7000 7001 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 7002 if (profileOwner != null) { 7003 UserRestrictionsUtils.merge(local, profileOwner.userRestrictions); 7004 } 7005 } 7006 // Also merge in *local* camera restriction. 7007 if (getCameraDisabled(/* who= */ null, 7008 userId, /* mergeDeviceOwnerRestriction= */ false)) { 7009 local.putBoolean(UserManager.DISALLOW_CAMERA, true); 7010 } 7011 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, local, global); 7012 } 7013 } 7014 7015 @Override 7016 public Bundle getUserRestrictions(ComponentName who, int userHandle) { 7017 Preconditions.checkNotNull(who, "ComponentName is null"); 7018 enforceFullCrossUsersPermission(userHandle); 7019 synchronized (this) { 7020 ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(who, userHandle); 7021 if (activeAdmin == null) { 7022 throw new SecurityException("No active admin: " + activeAdmin); 7023 } 7024 if (activeAdmin.getUid() != mInjector.binderGetCallingUid()) { 7025 mContext.enforceCallingOrSelfPermission( 7026 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, 7027 "Calling uid " + mInjector.binderGetCallingUid() + " neither owns the admin" 7028 + " " + who + " nor has MANAGE_PROFILE_AND_DEVICE_OWNERS permission"); 7029 } 7030 return activeAdmin.userRestrictions; 7031 } 7032 } 7033 7034 @Override 7035 public boolean setApplicationHidden(ComponentName who, String packageName, 7036 boolean hidden) { 7037 Preconditions.checkNotNull(who, "ComponentName is null"); 7038 int callingUserId = UserHandle.getCallingUserId(); 7039 synchronized (this) { 7040 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7041 7042 long id = mInjector.binderClearCallingIdentity(); 7043 try { 7044 return mIPackageManager.setApplicationHiddenSettingAsUser( 7045 packageName, hidden, callingUserId); 7046 } catch (RemoteException re) { 7047 // shouldn't happen 7048 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 7049 } finally { 7050 mInjector.binderRestoreCallingIdentity(id); 7051 } 7052 return false; 7053 } 7054 } 7055 7056 @Override 7057 public boolean isApplicationHidden(ComponentName who, String packageName) { 7058 Preconditions.checkNotNull(who, "ComponentName is null"); 7059 int callingUserId = UserHandle.getCallingUserId(); 7060 synchronized (this) { 7061 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7062 7063 long id = mInjector.binderClearCallingIdentity(); 7064 try { 7065 return mIPackageManager.getApplicationHiddenSettingAsUser( 7066 packageName, callingUserId); 7067 } catch (RemoteException re) { 7068 // shouldn't happen 7069 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 7070 } finally { 7071 mInjector.binderRestoreCallingIdentity(id); 7072 } 7073 return false; 7074 } 7075 } 7076 7077 @Override 7078 public void enableSystemApp(ComponentName who, String packageName) { 7079 Preconditions.checkNotNull(who, "ComponentName is null"); 7080 synchronized (this) { 7081 // This API can only be called by an active device admin, 7082 // so try to retrieve it to check that the caller is one. 7083 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7084 7085 int userId = UserHandle.getCallingUserId(); 7086 long id = mInjector.binderClearCallingIdentity(); 7087 7088 try { 7089 if (VERBOSE_LOG) { 7090 Slog.v(LOG_TAG, "installing " + packageName + " for " 7091 + userId); 7092 } 7093 7094 int parentUserId = getProfileParentId(userId); 7095 if (!isSystemApp(mIPackageManager, packageName, parentUserId)) { 7096 throw new IllegalArgumentException("Only system apps can be enabled this way."); 7097 } 7098 7099 // Install the app. 7100 mIPackageManager.installExistingPackageAsUser(packageName, userId); 7101 7102 } catch (RemoteException re) { 7103 // shouldn't happen 7104 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 7105 } finally { 7106 mInjector.binderRestoreCallingIdentity(id); 7107 } 7108 } 7109 } 7110 7111 @Override 7112 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 7113 Preconditions.checkNotNull(who, "ComponentName is null"); 7114 synchronized (this) { 7115 // This API can only be called by an active device admin, 7116 // so try to retrieve it to check that the caller is one. 7117 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7118 7119 int userId = UserHandle.getCallingUserId(); 7120 long id = mInjector.binderClearCallingIdentity(); 7121 7122 try { 7123 int parentUserId = getProfileParentId(userId); 7124 List<ResolveInfo> activitiesToEnable = mIPackageManager.queryIntentActivities( 7125 intent, 7126 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 7127 PackageManager.MATCH_ENCRYPTION_AWARE_AND_UNAWARE, 7128 parentUserId); 7129 7130 if (VERBOSE_LOG) { 7131 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 7132 } 7133 int numberOfAppsInstalled = 0; 7134 if (activitiesToEnable != null) { 7135 for (ResolveInfo info : activitiesToEnable) { 7136 if (info.activityInfo != null) { 7137 String packageName = info.activityInfo.packageName; 7138 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 7139 numberOfAppsInstalled++; 7140 mIPackageManager.installExistingPackageAsUser(packageName, userId); 7141 } else { 7142 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 7143 + " system app"); 7144 } 7145 } 7146 } 7147 } 7148 return numberOfAppsInstalled; 7149 } catch (RemoteException e) { 7150 // shouldn't happen 7151 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 7152 return 0; 7153 } finally { 7154 mInjector.binderRestoreCallingIdentity(id); 7155 } 7156 } 7157 } 7158 7159 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 7160 throws RemoteException { 7161 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 7162 userId); 7163 if (appInfo == null) { 7164 throw new IllegalArgumentException("The application " + packageName + 7165 " is not present on this device"); 7166 } 7167 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 7168 } 7169 7170 @Override 7171 public void setAccountManagementDisabled(ComponentName who, String accountType, 7172 boolean disabled) { 7173 if (!mHasFeature) { 7174 return; 7175 } 7176 Preconditions.checkNotNull(who, "ComponentName is null"); 7177 synchronized (this) { 7178 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 7179 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7180 if (disabled) { 7181 ap.accountTypesWithManagementDisabled.add(accountType); 7182 } else { 7183 ap.accountTypesWithManagementDisabled.remove(accountType); 7184 } 7185 saveSettingsLocked(UserHandle.getCallingUserId()); 7186 } 7187 } 7188 7189 @Override 7190 public String[] getAccountTypesWithManagementDisabled() { 7191 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 7192 } 7193 7194 @Override 7195 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 7196 enforceFullCrossUsersPermission(userId); 7197 if (!mHasFeature) { 7198 return null; 7199 } 7200 synchronized (this) { 7201 DevicePolicyData policy = getUserData(userId); 7202 final int N = policy.mAdminList.size(); 7203 ArraySet<String> resultSet = new ArraySet<>(); 7204 for (int i = 0; i < N; i++) { 7205 ActiveAdmin admin = policy.mAdminList.get(i); 7206 resultSet.addAll(admin.accountTypesWithManagementDisabled); 7207 } 7208 return resultSet.toArray(new String[resultSet.size()]); 7209 } 7210 } 7211 7212 @Override 7213 public void setUninstallBlocked(ComponentName who, String packageName, 7214 boolean uninstallBlocked) { 7215 Preconditions.checkNotNull(who, "ComponentName is null"); 7216 final int userId = UserHandle.getCallingUserId(); 7217 synchronized (this) { 7218 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7219 7220 long id = mInjector.binderClearCallingIdentity(); 7221 try { 7222 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 7223 } catch (RemoteException re) { 7224 // Shouldn't happen. 7225 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 7226 } finally { 7227 mInjector.binderRestoreCallingIdentity(id); 7228 } 7229 } 7230 } 7231 7232 @Override 7233 public boolean isUninstallBlocked(ComponentName who, String packageName) { 7234 // This function should return true if and only if the package is blocked by 7235 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 7236 // when the package is a system app, or when it is an active device admin. 7237 final int userId = UserHandle.getCallingUserId(); 7238 7239 synchronized (this) { 7240 if (who != null) { 7241 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7242 } 7243 7244 long id = mInjector.binderClearCallingIdentity(); 7245 try { 7246 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 7247 } catch (RemoteException re) { 7248 // Shouldn't happen. 7249 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 7250 } finally { 7251 mInjector.binderRestoreCallingIdentity(id); 7252 } 7253 } 7254 return false; 7255 } 7256 7257 @Override 7258 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 7259 if (!mHasFeature) { 7260 return; 7261 } 7262 Preconditions.checkNotNull(who, "ComponentName is null"); 7263 synchronized (this) { 7264 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7265 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7266 if (admin.disableCallerId != disabled) { 7267 admin.disableCallerId = disabled; 7268 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 7269 } 7270 } 7271 } 7272 7273 @Override 7274 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 7275 if (!mHasFeature) { 7276 return false; 7277 } 7278 Preconditions.checkNotNull(who, "ComponentName is null"); 7279 synchronized (this) { 7280 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7281 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7282 return admin.disableCallerId; 7283 } 7284 } 7285 7286 @Override 7287 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 7288 enforceCrossUsersPermission(userId); 7289 synchronized (this) { 7290 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7291 return (admin != null) ? admin.disableCallerId : false; 7292 } 7293 } 7294 7295 @Override 7296 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 7297 if (!mHasFeature) { 7298 return; 7299 } 7300 Preconditions.checkNotNull(who, "ComponentName is null"); 7301 synchronized (this) { 7302 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7303 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7304 if (admin.disableContactsSearch != disabled) { 7305 admin.disableContactsSearch = disabled; 7306 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 7307 } 7308 } 7309 } 7310 7311 @Override 7312 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 7313 if (!mHasFeature) { 7314 return false; 7315 } 7316 Preconditions.checkNotNull(who, "ComponentName is null"); 7317 synchronized (this) { 7318 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7319 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7320 return admin.disableContactsSearch; 7321 } 7322 } 7323 7324 @Override 7325 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 7326 enforceCrossUsersPermission(userId); 7327 synchronized (this) { 7328 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7329 return (admin != null) ? admin.disableContactsSearch : false; 7330 } 7331 } 7332 7333 @Override 7334 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 7335 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 7336 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 7337 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 7338 final int callingUserId = UserHandle.getCallingUserId(); 7339 7340 final long ident = mInjector.binderClearCallingIdentity(); 7341 try { 7342 synchronized (this) { 7343 final int managedUserId = getManagedUserId(callingUserId); 7344 if (managedUserId < 0) { 7345 return; 7346 } 7347 if (isCrossProfileQuickContactDisabled(managedUserId)) { 7348 if (VERBOSE_LOG) { 7349 Log.v(LOG_TAG, 7350 "Cross-profile contacts access disabled for user " + managedUserId); 7351 } 7352 return; 7353 } 7354 ContactsInternal.startQuickContactWithErrorToastForUser( 7355 mContext, intent, new UserHandle(managedUserId)); 7356 } 7357 } finally { 7358 mInjector.binderRestoreCallingIdentity(ident); 7359 } 7360 } 7361 7362 /** 7363 * @return true if cross-profile QuickContact is disabled 7364 */ 7365 private boolean isCrossProfileQuickContactDisabled(int userId) { 7366 return getCrossProfileCallerIdDisabledForUser(userId) 7367 && getCrossProfileContactsSearchDisabledForUser(userId); 7368 } 7369 7370 /** 7371 * @return the user ID of the managed user that is linked to the current user, if any. 7372 * Otherwise -1. 7373 */ 7374 public int getManagedUserId(int callingUserId) { 7375 if (VERBOSE_LOG) { 7376 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 7377 } 7378 7379 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 7380 if (ui.id == callingUserId || !ui.isManagedProfile()) { 7381 continue; // Caller user self, or not a managed profile. Skip. 7382 } 7383 if (VERBOSE_LOG) { 7384 Log.v(LOG_TAG, "Managed user=" + ui.id); 7385 } 7386 return ui.id; 7387 } 7388 if (VERBOSE_LOG) { 7389 Log.v(LOG_TAG, "Managed user not found."); 7390 } 7391 return -1; 7392 } 7393 7394 @Override 7395 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 7396 if (!mHasFeature) { 7397 return; 7398 } 7399 Preconditions.checkNotNull(who, "ComponentName is null"); 7400 synchronized (this) { 7401 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7402 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7403 if (admin.disableBluetoothContactSharing != disabled) { 7404 admin.disableBluetoothContactSharing = disabled; 7405 saveSettingsLocked(UserHandle.getCallingUserId()); 7406 } 7407 } 7408 } 7409 7410 @Override 7411 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 7412 if (!mHasFeature) { 7413 return false; 7414 } 7415 Preconditions.checkNotNull(who, "ComponentName is null"); 7416 synchronized (this) { 7417 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7418 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7419 return admin.disableBluetoothContactSharing; 7420 } 7421 } 7422 7423 @Override 7424 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 7425 // TODO: Should there be a check to make sure this relationship is 7426 // within a profile group? 7427 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 7428 synchronized (this) { 7429 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7430 return (admin != null) ? admin.disableBluetoothContactSharing : false; 7431 } 7432 } 7433 7434 /** 7435 * Sets which packages may enter lock task mode. 7436 * 7437 * This function can only be called by the device owner. 7438 * @param packages The list of packages allowed to enter lock task mode. 7439 */ 7440 @Override 7441 public void setLockTaskPackages(ComponentName who, String[] packages) 7442 throws SecurityException { 7443 Preconditions.checkNotNull(who, "ComponentName is null"); 7444 synchronized (this) { 7445 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7446 7447 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 7448 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 7449 } 7450 } 7451 7452 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 7453 DevicePolicyData policy = getUserData(userHandle); 7454 policy.mLockTaskPackages = packages; 7455 7456 // Store the settings persistently. 7457 saveSettingsLocked(userHandle); 7458 updateLockTaskPackagesLocked(packages, userHandle); 7459 } 7460 7461 /** 7462 * This function returns the list of components allowed to start the task lock mode. 7463 */ 7464 @Override 7465 public String[] getLockTaskPackages(ComponentName who) { 7466 Preconditions.checkNotNull(who, "ComponentName is null"); 7467 synchronized (this) { 7468 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7469 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 7470 final List<String> packages = getLockTaskPackagesLocked(userHandle); 7471 return packages.toArray(new String[packages.size()]); 7472 } 7473 } 7474 7475 private List<String> getLockTaskPackagesLocked(int userHandle) { 7476 final DevicePolicyData policy = getUserData(userHandle); 7477 return policy.mLockTaskPackages; 7478 } 7479 7480 /** 7481 * This function lets the caller know whether the given package is allowed to start the 7482 * lock task mode. 7483 * @param pkg The package to check 7484 */ 7485 @Override 7486 public boolean isLockTaskPermitted(String pkg) { 7487 // Get current user's devicepolicy 7488 int uid = mInjector.binderGetCallingUid(); 7489 int userHandle = UserHandle.getUserId(uid); 7490 DevicePolicyData policy = getUserData(userHandle); 7491 synchronized (this) { 7492 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 7493 String lockTaskPackage = policy.mLockTaskPackages.get(i); 7494 7495 // If the given package equals one of the packages stored our list, 7496 // we allow this package to start lock task mode. 7497 if (lockTaskPackage.equals(pkg)) { 7498 return true; 7499 } 7500 } 7501 } 7502 return false; 7503 } 7504 7505 @Override 7506 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 7507 if (!isCallerWithSystemUid()) { 7508 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 7509 } 7510 synchronized (this) { 7511 final DevicePolicyData policy = getUserData(userHandle); 7512 Bundle adminExtras = new Bundle(); 7513 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 7514 for (ActiveAdmin admin : policy.mAdminList) { 7515 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 7516 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 7517 if (ownsDevice || ownsProfile) { 7518 if (isEnabled) { 7519 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 7520 adminExtras, null); 7521 } else { 7522 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 7523 } 7524 } 7525 } 7526 } 7527 } 7528 7529 @Override 7530 public void setGlobalSetting(ComponentName who, String setting, String value) { 7531 Preconditions.checkNotNull(who, "ComponentName is null"); 7532 7533 synchronized (this) { 7534 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7535 7536 // Some settings are no supported any more. However we do not want to throw a 7537 // SecurityException to avoid breaking apps. 7538 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 7539 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 7540 return; 7541 } 7542 7543 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 7544 throw new SecurityException(String.format( 7545 "Permission denial: device owners cannot update %1$s", setting)); 7546 } 7547 7548 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 7549 // ignore if it contradicts an existing policy 7550 long timeMs = getMaximumTimeToLock( 7551 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 7552 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 7553 return; 7554 } 7555 } 7556 7557 long id = mInjector.binderClearCallingIdentity(); 7558 try { 7559 mInjector.settingsGlobalPutString(setting, value); 7560 } finally { 7561 mInjector.binderRestoreCallingIdentity(id); 7562 } 7563 } 7564 } 7565 7566 @Override 7567 public void setSecureSetting(ComponentName who, String setting, String value) { 7568 Preconditions.checkNotNull(who, "ComponentName is null"); 7569 int callingUserId = mInjector.userHandleGetCallingUserId(); 7570 7571 synchronized (this) { 7572 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7573 7574 if (isDeviceOwner(who, callingUserId)) { 7575 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 7576 throw new SecurityException(String.format( 7577 "Permission denial: Device owners cannot update %1$s", setting)); 7578 } 7579 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 7580 throw new SecurityException(String.format( 7581 "Permission denial: Profile owners cannot update %1$s", setting)); 7582 } 7583 7584 long id = mInjector.binderClearCallingIdentity(); 7585 try { 7586 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 7587 } finally { 7588 mInjector.binderRestoreCallingIdentity(id); 7589 } 7590 } 7591 } 7592 7593 @Override 7594 public void setMasterVolumeMuted(ComponentName who, boolean on) { 7595 Preconditions.checkNotNull(who, "ComponentName is null"); 7596 synchronized (this) { 7597 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7598 int userId = UserHandle.getCallingUserId(); 7599 long identity = mInjector.binderClearCallingIdentity(); 7600 try { 7601 IAudioService iAudioService = IAudioService.Stub.asInterface( 7602 ServiceManager.getService(Context.AUDIO_SERVICE)); 7603 iAudioService.setMasterMute(on, 0, mContext.getPackageName(), userId); 7604 } catch (RemoteException re) { 7605 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 7606 } finally { 7607 mInjector.binderRestoreCallingIdentity(identity); 7608 } 7609 } 7610 } 7611 7612 @Override 7613 public boolean isMasterVolumeMuted(ComponentName who) { 7614 Preconditions.checkNotNull(who, "ComponentName is null"); 7615 synchronized (this) { 7616 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7617 7618 AudioManager audioManager = 7619 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 7620 return audioManager.isMasterMute(); 7621 } 7622 } 7623 7624 @Override 7625 public void setUserIcon(ComponentName who, Bitmap icon) { 7626 synchronized (this) { 7627 Preconditions.checkNotNull(who, "ComponentName is null"); 7628 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7629 7630 int userId = UserHandle.getCallingUserId(); 7631 long id = mInjector.binderClearCallingIdentity(); 7632 try { 7633 mUserManagerInternal.setUserIcon(userId, icon); 7634 } finally { 7635 mInjector.binderRestoreCallingIdentity(id); 7636 } 7637 } 7638 } 7639 7640 @Override 7641 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 7642 Preconditions.checkNotNull(who, "ComponentName is null"); 7643 synchronized (this) { 7644 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7645 } 7646 final int userId = UserHandle.getCallingUserId(); 7647 7648 long ident = mInjector.binderClearCallingIdentity(); 7649 try { 7650 // disallow disabling the keyguard if a password is currently set 7651 if (disabled && mLockPatternUtils.isSecure(userId)) { 7652 return false; 7653 } 7654 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 7655 } finally { 7656 mInjector.binderRestoreCallingIdentity(ident); 7657 } 7658 return true; 7659 } 7660 7661 @Override 7662 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 7663 int userId = UserHandle.getCallingUserId(); 7664 synchronized (this) { 7665 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7666 DevicePolicyData policy = getUserData(userId); 7667 if (policy.mStatusBarDisabled != disabled) { 7668 if (!setStatusBarDisabledInternal(disabled, userId)) { 7669 return false; 7670 } 7671 policy.mStatusBarDisabled = disabled; 7672 saveSettingsLocked(userId); 7673 } 7674 } 7675 return true; 7676 } 7677 7678 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 7679 long ident = mInjector.binderClearCallingIdentity(); 7680 try { 7681 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 7682 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 7683 if (statusBarService != null) { 7684 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 7685 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 7686 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 7687 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 7688 return true; 7689 } 7690 } catch (RemoteException e) { 7691 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 7692 } finally { 7693 mInjector.binderRestoreCallingIdentity(ident); 7694 } 7695 return false; 7696 } 7697 7698 /** 7699 * We need to update the internal state of whether a user has completed setup once. After 7700 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 7701 * as we don't trust any apps that might try to reset it. 7702 * <p> 7703 * Unfortunately, we don't know which user's setup state was changed, so we write all of 7704 * them. 7705 */ 7706 void updateUserSetupComplete() { 7707 List<UserInfo> users = mUserManager.getUsers(true); 7708 final int N = users.size(); 7709 for (int i = 0; i < N; i++) { 7710 int userHandle = users.get(i).id; 7711 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 7712 userHandle) != 0) { 7713 DevicePolicyData policy = getUserData(userHandle); 7714 if (!policy.mUserSetupComplete) { 7715 policy.mUserSetupComplete = true; 7716 synchronized (this) { 7717 saveSettingsLocked(userHandle); 7718 } 7719 } 7720 } 7721 } 7722 } 7723 7724 private class SetupContentObserver extends ContentObserver { 7725 7726 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 7727 Settings.Secure.USER_SETUP_COMPLETE); 7728 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 7729 Settings.Global.DEVICE_PROVISIONED); 7730 7731 public SetupContentObserver(Handler handler) { 7732 super(handler); 7733 } 7734 7735 void register(ContentResolver resolver) { 7736 resolver.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 7737 resolver.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 7738 } 7739 7740 @Override 7741 public void onChange(boolean selfChange, Uri uri) { 7742 if (mUserSetupComplete.equals(uri)) { 7743 updateUserSetupComplete(); 7744 } else if (mDeviceProvisioned.equals(uri)) { 7745 synchronized (DevicePolicyManagerService.this) { 7746 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 7747 // is delayed until device is marked as provisioned. 7748 setDeviceOwnerSystemPropertyLocked(); 7749 } 7750 } 7751 } 7752 } 7753 7754 @VisibleForTesting 7755 final class LocalService extends DevicePolicyManagerInternal { 7756 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 7757 7758 @Override 7759 public List<String> getCrossProfileWidgetProviders(int profileId) { 7760 synchronized (DevicePolicyManagerService.this) { 7761 if (mOwners == null) { 7762 return Collections.emptyList(); 7763 } 7764 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 7765 if (ownerComponent == null) { 7766 return Collections.emptyList(); 7767 } 7768 7769 DevicePolicyData policy = getUserDataUnchecked(profileId); 7770 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 7771 7772 if (admin == null || admin.crossProfileWidgetProviders == null 7773 || admin.crossProfileWidgetProviders.isEmpty()) { 7774 return Collections.emptyList(); 7775 } 7776 7777 return admin.crossProfileWidgetProviders; 7778 } 7779 } 7780 7781 @Override 7782 public void addOnCrossProfileWidgetProvidersChangeListener( 7783 OnCrossProfileWidgetProvidersChangeListener listener) { 7784 synchronized (DevicePolicyManagerService.this) { 7785 if (mWidgetProviderListeners == null) { 7786 mWidgetProviderListeners = new ArrayList<>(); 7787 } 7788 if (!mWidgetProviderListeners.contains(listener)) { 7789 mWidgetProviderListeners.add(listener); 7790 } 7791 } 7792 } 7793 7794 @Override 7795 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 7796 synchronized(DevicePolicyManagerService.this) { 7797 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 7798 } 7799 } 7800 7801 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 7802 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 7803 synchronized (DevicePolicyManagerService.this) { 7804 listeners = new ArrayList<>(mWidgetProviderListeners); 7805 } 7806 final int listenerCount = listeners.size(); 7807 for (int i = 0; i < listenerCount; i++) { 7808 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 7809 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 7810 } 7811 } 7812 7813 @Override 7814 public boolean hasDeviceOwnerOrProfileOwner(String packageName, int userId) { 7815 if (!mHasFeature || packageName == null) { 7816 return false; 7817 } 7818 if (userId < 0) { 7819 throw new UnsupportedOperationException("userId should be >= 0"); 7820 } 7821 synchronized (DevicePolicyManagerService.this) { 7822 if (packageName.equals(mOwners.getProfileOwnerPackage(userId))) { 7823 return true; 7824 } 7825 if (userId == mOwners.getDeviceOwnerUserId() 7826 && packageName.equals(mOwners.getDeviceOwnerPackageName())) { 7827 return true; 7828 } 7829 } 7830 return false; 7831 } 7832 } 7833 7834 /** 7835 * Returns true if specified admin is allowed to limit passwords and has a 7836 * {@code passwordQuality} of at least {@code minPasswordQuality} 7837 */ 7838 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 7839 if (admin.passwordQuality < minPasswordQuality) { 7840 return false; 7841 } 7842 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 7843 } 7844 7845 @Override 7846 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 7847 if (policy != null && !policy.isValid()) { 7848 throw new IllegalArgumentException("Invalid system update policy."); 7849 } 7850 synchronized (this) { 7851 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7852 if (policy == null) { 7853 mOwners.clearSystemUpdatePolicy(); 7854 } else { 7855 mOwners.setSystemUpdatePolicy(policy); 7856 } 7857 mOwners.writeDeviceOwner(); 7858 } 7859 mContext.sendBroadcastAsUser( 7860 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 7861 UserHandle.SYSTEM); 7862 } 7863 7864 @Override 7865 public SystemUpdatePolicy getSystemUpdatePolicy() { 7866 synchronized (this) { 7867 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 7868 if (policy != null && !policy.isValid()) { 7869 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 7870 return null; 7871 } 7872 return policy; 7873 } 7874 } 7875 7876 /** 7877 * Checks if the caller of the method is the device owner app. 7878 * 7879 * @param callerUid UID of the caller. 7880 * @return true if the caller is the device owner app 7881 */ 7882 @VisibleForTesting 7883 boolean isCallerDeviceOwner(int callerUid) { 7884 synchronized (this) { 7885 if (!mOwners.hasDeviceOwner()) { 7886 return false; 7887 } 7888 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 7889 return false; 7890 } 7891 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 7892 .getPackageName(); 7893 final String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 7894 7895 for (String pkg : pkgs) { 7896 if (deviceOwnerPackageName.equals(pkg)) { 7897 return true; 7898 } 7899 } 7900 } 7901 7902 return false; 7903 } 7904 7905 @Override 7906 public void notifyPendingSystemUpdate(long updateReceivedTime) { 7907 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 7908 "Only the system update service can broadcast update information"); 7909 7910 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 7911 Slog.w(LOG_TAG, "Only the system update service in the system user " + 7912 "can broadcast update information."); 7913 return; 7914 } 7915 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 7916 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 7917 updateReceivedTime); 7918 7919 synchronized (this) { 7920 final String deviceOwnerPackage = 7921 mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerComponent().getPackageName() 7922 : null; 7923 if (deviceOwnerPackage == null) { 7924 return; 7925 } 7926 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 7927 7928 ActivityInfo[] receivers = null; 7929 try { 7930 receivers = mContext.getPackageManager().getPackageInfo( 7931 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 7932 } catch (NameNotFoundException e) { 7933 Log.e(LOG_TAG, "Cannot find device owner package", e); 7934 } 7935 if (receivers != null) { 7936 long ident = mInjector.binderClearCallingIdentity(); 7937 try { 7938 for (int i = 0; i < receivers.length; i++) { 7939 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 7940 intent.setComponent(new ComponentName(deviceOwnerPackage, 7941 receivers[i].name)); 7942 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 7943 } 7944 } 7945 } finally { 7946 mInjector.binderRestoreCallingIdentity(ident); 7947 } 7948 } 7949 } 7950 } 7951 7952 @Override 7953 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 7954 int userId = UserHandle.getCallingUserId(); 7955 synchronized (this) { 7956 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7957 DevicePolicyData userPolicy = getUserData(userId); 7958 if (userPolicy.mPermissionPolicy != policy) { 7959 userPolicy.mPermissionPolicy = policy; 7960 saveSettingsLocked(userId); 7961 } 7962 } 7963 } 7964 7965 @Override 7966 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 7967 int userId = UserHandle.getCallingUserId(); 7968 synchronized (this) { 7969 DevicePolicyData userPolicy = getUserData(userId); 7970 return userPolicy.mPermissionPolicy; 7971 } 7972 } 7973 7974 @Override 7975 public boolean setPermissionGrantState(ComponentName admin, String packageName, 7976 String permission, int grantState) throws RemoteException { 7977 UserHandle user = mInjector.binderGetCallingUserHandle(); 7978 synchronized (this) { 7979 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7980 long ident = mInjector.binderClearCallingIdentity(); 7981 try { 7982 if (getTargetSdk(packageName, user.getIdentifier()) 7983 < android.os.Build.VERSION_CODES.M) { 7984 return false; 7985 } 7986 final PackageManager packageManager = mContext.getPackageManager(); 7987 switch (grantState) { 7988 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 7989 packageManager.grantRuntimePermission(packageName, permission, user); 7990 packageManager.updatePermissionFlags(permission, packageName, 7991 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 7992 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 7993 } break; 7994 7995 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 7996 packageManager.revokeRuntimePermission(packageName, 7997 permission, user); 7998 packageManager.updatePermissionFlags(permission, packageName, 7999 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 8000 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 8001 } break; 8002 8003 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 8004 packageManager.updatePermissionFlags(permission, packageName, 8005 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 8006 } break; 8007 } 8008 return true; 8009 } catch (SecurityException se) { 8010 return false; 8011 } finally { 8012 mInjector.binderRestoreCallingIdentity(ident); 8013 } 8014 } 8015 } 8016 8017 @Override 8018 public int getPermissionGrantState(ComponentName admin, String packageName, 8019 String permission) throws RemoteException { 8020 PackageManager packageManager = mContext.getPackageManager(); 8021 8022 UserHandle user = mInjector.binderGetCallingUserHandle(); 8023 synchronized (this) { 8024 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8025 long ident = mInjector.binderClearCallingIdentity(); 8026 try { 8027 int granted = mIPackageManager.checkPermission(permission, 8028 packageName, user.getIdentifier()); 8029 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 8030 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 8031 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 8032 // Not controlled by policy 8033 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 8034 } else { 8035 // Policy controlled so return result based on permission grant state 8036 return granted == PackageManager.PERMISSION_GRANTED 8037 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 8038 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 8039 } 8040 } finally { 8041 mInjector.binderRestoreCallingIdentity(ident); 8042 } 8043 } 8044 } 8045 8046 boolean isPackageInstalledForUser(String packageName, int userHandle) { 8047 try { 8048 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 8049 userHandle); 8050 return (pi != null) && (pi.applicationInfo.flags != 0); 8051 } catch (RemoteException re) { 8052 throw new RuntimeException("Package manager has died", re); 8053 } 8054 } 8055 8056 @Override 8057 public boolean isProvisioningAllowed(String action) { 8058 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8059 if (DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE.equals(action)) { 8060 if (!hasFeatureManagedUsers()) { 8061 return false; 8062 } 8063 synchronized (this) { 8064 if (mOwners.hasDeviceOwner()) { 8065 if (!mInjector.userManagerIsSplitSystemUser()) { 8066 // Only split-system-user systems support managed-profiles in combination with 8067 // device-owner. 8068 return false; 8069 } 8070 if (mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM) { 8071 // Only system device-owner supports managed-profiles. Non-system device-owner 8072 // doesn't. 8073 return false; 8074 } 8075 if (callingUserId == UserHandle.USER_SYSTEM) { 8076 // Managed-profiles cannot be setup on the system user, only regular users. 8077 return false; 8078 } 8079 } 8080 } 8081 if (getProfileOwner(callingUserId) != null) { 8082 // Managed user cannot have a managed profile. 8083 return false; 8084 } 8085 final long ident = mInjector.binderClearCallingIdentity(); 8086 try { 8087 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, true)) { 8088 return false; 8089 } 8090 } finally { 8091 mInjector.binderRestoreCallingIdentity(ident); 8092 } 8093 return true; 8094 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE.equals(action)) { 8095 return isDeviceOwnerProvisioningAllowed(callingUserId); 8096 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_USER.equals(action)) { 8097 if (!hasFeatureManagedUsers()) { 8098 return false; 8099 } 8100 if (!mInjector.userManagerIsSplitSystemUser()) { 8101 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 8102 return false; 8103 } 8104 if (callingUserId == UserHandle.USER_SYSTEM) { 8105 // System user cannot be a managed user. 8106 return false; 8107 } 8108 if (hasUserSetupCompleted(callingUserId)) { 8109 return false; 8110 } 8111 return true; 8112 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE.equals(action)) { 8113 if (!mInjector.userManagerIsSplitSystemUser()) { 8114 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 8115 return false; 8116 } 8117 return isDeviceOwnerProvisioningAllowed(callingUserId); 8118 } 8119 throw new IllegalArgumentException("Unknown provisioning action " + action); 8120 } 8121 8122 private boolean isDeviceOwnerProvisioningAllowed(int callingUserId) { 8123 synchronized (this) { 8124 if (mOwners.hasDeviceOwner()) { 8125 return false; 8126 } 8127 } 8128 if (getProfileOwner(callingUserId) != null) { 8129 return false; 8130 } 8131 if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0) { 8132 return false; 8133 } 8134 if (callingUserId != UserHandle.USER_SYSTEM) { 8135 // Device owner provisioning can only be initiated from system user. 8136 return false; 8137 } 8138 return true; 8139 } 8140 8141 private boolean hasFeatureManagedUsers() { 8142 try { 8143 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 8144 } catch (RemoteException e) { 8145 return false; 8146 } 8147 } 8148 8149 @Override 8150 public String getWifiMacAddress() { 8151 // Make sure caller has DO. 8152 synchronized (this) { 8153 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8154 } 8155 8156 final long ident = mInjector.binderClearCallingIdentity(); 8157 try { 8158 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 8159 if (wifiInfo == null) { 8160 return null; 8161 } 8162 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 8163 } finally { 8164 mInjector.binderRestoreCallingIdentity(ident); 8165 } 8166 } 8167 8168 /** 8169 * Returns the target sdk version number that the given packageName was built for 8170 * in the given user. 8171 */ 8172 private int getTargetSdk(String packageName, int userId) throws RemoteException { 8173 final ApplicationInfo ai = mIPackageManager 8174 .getApplicationInfo(packageName, 0, userId); 8175 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 8176 return targetSdkVersion; 8177 } 8178 8179 @Override 8180 public boolean isManagedProfile(ComponentName admin) { 8181 synchronized (this) { 8182 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8183 } 8184 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8185 final UserInfo user; 8186 long ident = mInjector.binderClearCallingIdentity(); 8187 try { 8188 user = mUserManager.getUserInfo(callingUserId); 8189 } finally { 8190 mInjector.binderRestoreCallingIdentity(ident); 8191 } 8192 return user != null && user.isManagedProfile(); 8193 } 8194 8195 @Override 8196 public boolean isSystemOnlyUser(ComponentName admin) { 8197 synchronized (this) { 8198 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8199 } 8200 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8201 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 8202 } 8203 8204 @Override 8205 public void reboot(ComponentName admin) { 8206 Preconditions.checkNotNull(admin); 8207 // Make sure caller has DO. 8208 synchronized (this) { 8209 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8210 } 8211 long ident = mInjector.binderClearCallingIdentity(); 8212 try { 8213 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 8214 } finally { 8215 mInjector.binderRestoreCallingIdentity(ident); 8216 } 8217 } 8218 8219 @Override 8220 public void setShortSupportMessage(@NonNull ComponentName who, String message) { 8221 if (!mHasFeature) { 8222 return; 8223 } 8224 Preconditions.checkNotNull(who, "ComponentName is null"); 8225 final int userHandle = mInjector.userHandleGetCallingUserId(); 8226 synchronized (this) { 8227 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8228 mInjector.binderGetCallingUid()); 8229 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 8230 admin.shortSupportMessage = message; 8231 saveSettingsLocked(userHandle); 8232 } 8233 } 8234 } 8235 8236 @Override 8237 public String getShortSupportMessage(@NonNull ComponentName who) { 8238 if (!mHasFeature) { 8239 return null; 8240 } 8241 Preconditions.checkNotNull(who, "ComponentName is null"); 8242 synchronized (this) { 8243 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8244 mInjector.binderGetCallingUid()); 8245 return admin.shortSupportMessage; 8246 } 8247 } 8248 8249 @Override 8250 public void setLongSupportMessage(@NonNull ComponentName who, String message) { 8251 if (!mHasFeature) { 8252 return; 8253 } 8254 Preconditions.checkNotNull(who, "ComponentName is null"); 8255 final int userHandle = mInjector.userHandleGetCallingUserId(); 8256 synchronized (this) { 8257 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8258 mInjector.binderGetCallingUid()); 8259 if (!TextUtils.equals(admin.longSupportMessage, message)) { 8260 admin.longSupportMessage = message; 8261 saveSettingsLocked(userHandle); 8262 } 8263 } 8264 } 8265 8266 @Override 8267 public String getLongSupportMessage(@NonNull ComponentName who) { 8268 if (!mHasFeature) { 8269 return null; 8270 } 8271 Preconditions.checkNotNull(who, "ComponentName is null"); 8272 synchronized (this) { 8273 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8274 mInjector.binderGetCallingUid()); 8275 return admin.longSupportMessage; 8276 } 8277 } 8278 8279 @Override 8280 public String getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 8281 if (!mHasFeature) { 8282 return null; 8283 } 8284 Preconditions.checkNotNull(who, "ComponentName is null"); 8285 if (!isCallerWithSystemUid()) { 8286 throw new SecurityException("Only the system can query support message for user"); 8287 } 8288 synchronized (this) { 8289 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8290 if (admin != null) { 8291 return admin.shortSupportMessage; 8292 } 8293 } 8294 return null; 8295 } 8296 8297 @Override 8298 public String getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 8299 if (!mHasFeature) { 8300 return null; 8301 } 8302 Preconditions.checkNotNull(who, "ComponentName is null"); 8303 if (!isCallerWithSystemUid()) { 8304 throw new SecurityException("Only the system can query support message for user"); 8305 } 8306 synchronized (this) { 8307 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8308 if (admin != null) { 8309 return admin.longSupportMessage; 8310 } 8311 } 8312 return null; 8313 } 8314 8315 @Override 8316 public void setOrganizationColor(@NonNull ComponentName who, int color) { 8317 if (!mHasFeature) { 8318 return; 8319 } 8320 Preconditions.checkNotNull(who, "ComponentName is null"); 8321 final int userHandle = mInjector.userHandleGetCallingUserId(); 8322 enforceManagedProfile(userHandle, "set organization color"); 8323 synchronized (this) { 8324 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8325 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8326 admin.organizationColor = color; 8327 saveSettingsLocked(userHandle); 8328 } 8329 } 8330 8331 @Override 8332 public void setOrganizationColorForUser(int color, int userId) { 8333 if (!mHasFeature) { 8334 return; 8335 } 8336 enforceFullCrossUsersPermission(userId); 8337 enforceManageUsers(); 8338 enforceManagedProfile(userId, "set organization color"); 8339 synchronized (this) { 8340 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8341 admin.organizationColor = color; 8342 saveSettingsLocked(userId); 8343 } 8344 } 8345 8346 @Override 8347 public int getOrganizationColor(@NonNull ComponentName who) { 8348 if (!mHasFeature) { 8349 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 8350 } 8351 Preconditions.checkNotNull(who, "ComponentName is null"); 8352 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 8353 synchronized (this) { 8354 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8355 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8356 return admin.organizationColor; 8357 } 8358 } 8359 8360 @Override 8361 public int getOrganizationColorForUser(int userHandle) { 8362 if (!mHasFeature) { 8363 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 8364 } 8365 enforceFullCrossUsersPermission(userHandle); 8366 enforceManagedProfile(userHandle, "get organization color"); 8367 synchronized (this) { 8368 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 8369 return (profileOwner != null) 8370 ? profileOwner.organizationColor 8371 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 8372 } 8373 } 8374 8375 @Override 8376 public void setOrganizationName(@NonNull ComponentName who, String text) { 8377 if (!mHasFeature) { 8378 return; 8379 } 8380 Preconditions.checkNotNull(who, "ComponentName is null"); 8381 final int userHandle = mInjector.userHandleGetCallingUserId(); 8382 enforceManagedProfile(userHandle, "set organization name"); 8383 synchronized (this) { 8384 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8385 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8386 if (!TextUtils.equals(admin.organizationName, text)) { 8387 admin.organizationName = TextUtils.nullIfEmpty(text); 8388 saveSettingsLocked(userHandle); 8389 } 8390 } 8391 } 8392 8393 @Override 8394 public String getOrganizationName(@NonNull ComponentName who) { 8395 if (!mHasFeature) { 8396 return null; 8397 } 8398 Preconditions.checkNotNull(who, "ComponentName is null"); 8399 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 8400 synchronized(this) { 8401 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8402 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8403 return admin.organizationName; 8404 } 8405 } 8406 8407 @Override 8408 public String getOrganizationNameForUser(int userHandle) { 8409 if (!mHasFeature) { 8410 return null; 8411 } 8412 enforceFullCrossUsersPermission(userHandle); 8413 enforceManagedProfile(userHandle, "get organization name"); 8414 synchronized (this) { 8415 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 8416 return (profileOwner != null) 8417 ? profileOwner.organizationName 8418 : null; 8419 } 8420 } 8421 8422 @Override 8423 public void setAffiliationIds(ComponentName admin, List<String> ids) { 8424 final Set<String> affiliationIds = new ArraySet<String>(ids); 8425 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8426 8427 synchronized (this) { 8428 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8429 getUserData(callingUserId).mAffiliationIds = affiliationIds; 8430 saveSettingsLocked(callingUserId); 8431 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 8432 // Affiliation ids specified by the device owner are additionally stored in 8433 // UserHandle.USER_SYSTEM's DevicePolicyData. 8434 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 8435 saveSettingsLocked(UserHandle.USER_SYSTEM); 8436 } 8437 } 8438 } 8439 8440 @Override 8441 public boolean isAffiliatedUser() { 8442 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8443 8444 synchronized (this) { 8445 if (mOwners.getDeviceOwnerUserId() == callingUserId) { 8446 // The user that the DO is installed on is always affiliated. 8447 return true; 8448 } 8449 final ComponentName profileOwner = getProfileOwner(callingUserId); 8450 if (profileOwner == null 8451 || !profileOwner.getPackageName().equals(mOwners.getDeviceOwnerPackageName())) { 8452 return false; 8453 } 8454 final Set<String> userAffiliationIds = getUserData(callingUserId).mAffiliationIds; 8455 final Set<String> deviceAffiliationIds = 8456 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 8457 for (String id : userAffiliationIds) { 8458 if (deviceAffiliationIds.contains(id)) { 8459 return true; 8460 } 8461 } 8462 } 8463 return false; 8464 } 8465 8466 private synchronized void disableDeviceLoggingIfNotCompliant() { 8467 if (!isDeviceOwnerManagedSingleUserDevice()) { 8468 mInjector.securityLogSetLoggingEnabledProperty(false); 8469 Slog.w(LOG_TAG, "Device logging turned off as it's no longer a single user device."); 8470 } 8471 } 8472 8473 @Override 8474 public void setDeviceLoggingEnabled(ComponentName admin, boolean enabled) { 8475 Preconditions.checkNotNull(admin); 8476 ensureDeviceOwnerManagingSingleUser(admin); 8477 8478 synchronized (this) { 8479 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 8480 return; 8481 } 8482 mInjector.securityLogSetLoggingEnabledProperty(enabled); 8483 if (enabled) { 8484 mSecurityLogMonitor.start(); 8485 } else { 8486 mSecurityLogMonitor.stop(); 8487 } 8488 } 8489 } 8490 8491 @Override 8492 public boolean getDeviceLoggingEnabled(ComponentName admin) { 8493 Preconditions.checkNotNull(admin); 8494 synchronized (this) { 8495 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8496 return mInjector.securityLogGetLoggingEnabledProperty(); 8497 } 8498 } 8499 8500 @Override 8501 public ParceledListSlice<SecurityEvent> retrievePreviousDeviceLogs(ComponentName admin) { 8502 Preconditions.checkNotNull(admin); 8503 ensureDeviceOwnerManagingSingleUser(admin); 8504 8505 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 8506 try { 8507 SecurityLog.readPreviousEvents(output); 8508 return new ParceledListSlice<SecurityEvent>(output); 8509 } catch (IOException e) { 8510 Slog.w(LOG_TAG, "Fail to read previous events" , e); 8511 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 8512 } 8513 } 8514 8515 @Override 8516 public ParceledListSlice<SecurityEvent> retrieveDeviceLogs(ComponentName admin) { 8517 Preconditions.checkNotNull(admin); 8518 ensureDeviceOwnerManagingSingleUser(admin); 8519 8520 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 8521 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 8522 } 8523 8524 private void enforceCanManageDeviceAdmin() { 8525 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 8526 null); 8527 } 8528 8529 @Override 8530 public boolean isUninstallInQueue(final String packageName) { 8531 enforceCanManageDeviceAdmin(); 8532 final int userId = mInjector.userHandleGetCallingUserId(); 8533 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 8534 synchronized (this) { 8535 return mPackagesToRemove.contains(packageUserPair); 8536 } 8537 } 8538 8539 @Override 8540 public void uninstallPackageWithActiveAdmins(final String packageName) { 8541 enforceCanManageDeviceAdmin(); 8542 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 8543 8544 final int userId = mInjector.userHandleGetCallingUserId(); 8545 8546 enforceUserUnlocked(userId); 8547 8548 final ComponentName profileOwner = getProfileOwner(userId); 8549 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 8550 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 8551 } 8552 8553 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 8554 if (getDeviceOwnerUserId() == userId && deviceOwner != null 8555 && packageName.equals(deviceOwner.getPackageName())) { 8556 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 8557 } 8558 8559 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 8560 synchronized (this) { 8561 mPackagesToRemove.add(packageUserPair); 8562 } 8563 8564 // All active admins on the user. 8565 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 8566 8567 // Active admins in the target package. 8568 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 8569 if (allActiveAdmins != null) { 8570 for (ComponentName activeAdmin : allActiveAdmins) { 8571 if (packageName.equals(activeAdmin.getPackageName())) { 8572 packageActiveAdmins.add(activeAdmin); 8573 removeActiveAdmin(activeAdmin, userId); 8574 } 8575 } 8576 } 8577 if (packageActiveAdmins.size() == 0) { 8578 startUninstallIntent(packageName, userId); 8579 } else { 8580 mHandler.postDelayed(new Runnable() { 8581 @Override 8582 public void run() { 8583 for (ComponentName activeAdmin : packageActiveAdmins) { 8584 removeAdminArtifacts(activeAdmin, userId); 8585 } 8586 startUninstallIntent(packageName, userId); 8587 } 8588 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 8589 } 8590 } 8591 8592 private void removePackageIfRequired(final String packageName, final int userId) { 8593 if (!packageHasActiveAdmins(packageName, userId)) { 8594 // Will not do anything if uninstall was not requested or was already started. 8595 startUninstallIntent(packageName, userId); 8596 } 8597 } 8598 8599 private void startUninstallIntent(final String packageName, final int userId) { 8600 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 8601 synchronized (this) { 8602 if (!mPackagesToRemove.contains(packageUserPair)) { 8603 // Do nothing if uninstall was not requested or was already started. 8604 return; 8605 } 8606 mPackagesToRemove.remove(packageUserPair); 8607 } 8608 try { 8609 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 8610 // Package does not exist. Nothing to do. 8611 return; 8612 } 8613 } catch (RemoteException re) { 8614 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 8615 } 8616 8617 try { // force stop the package before uninstalling 8618 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 8619 } catch (RemoteException re) { 8620 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 8621 } 8622 final Uri packageURI = Uri.parse("package:" + packageName); 8623 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 8624 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 8625 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 8626 } 8627 8628 /** 8629 * Removes the admin from the policy. Ideally called after the admin's 8630 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 8631 * 8632 * @param adminReceiver The admin to remove 8633 * @param userHandle The user for which this admin has to be removed. 8634 */ 8635 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 8636 synchronized (this) { 8637 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 8638 if (admin == null) { 8639 return; 8640 } 8641 final DevicePolicyData policy = getUserData(userHandle); 8642 final boolean doProxyCleanup = admin.info.usesPolicy( 8643 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 8644 policy.mAdminList.remove(admin); 8645 policy.mAdminMap.remove(adminReceiver); 8646 validatePasswordOwnerLocked(policy); 8647 if (doProxyCleanup) { 8648 resetGlobalProxyLocked(policy); 8649 } 8650 saveSettingsLocked(userHandle); 8651 updateMaximumTimeToLockLocked(userHandle); 8652 policy.mRemovingAdmins.remove(adminReceiver); 8653 } 8654 // The removed admin might have disabled camera, so update user 8655 // restrictions. 8656 pushUserRestrictions(userHandle); 8657 } 8658} 8659