DevicePolicyManagerService.java revision 80189cdece046e2e915e07c0ee166b6375dbde84
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 android.content.pm.PackageManager.MATCH_DIRECT_BOOT_AWARE; 25import static android.content.pm.PackageManager.MATCH_DIRECT_BOOT_UNAWARE; 26 27import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 28import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 29import static org.xmlpull.v1.XmlPullParser.END_TAG; 30import static org.xmlpull.v1.XmlPullParser.TEXT; 31 32import android.Manifest.permission; 33import android.accessibilityservice.AccessibilityServiceInfo; 34import android.accounts.AccountManager; 35import android.annotation.IntDef; 36import android.annotation.NonNull; 37import android.annotation.Nullable; 38import android.annotation.UserIdInt; 39import android.app.Activity; 40import android.app.ActivityManager; 41import android.app.ActivityManagerNative; 42import android.app.AlarmManager; 43import android.app.AppGlobals; 44import android.app.IActivityManager; 45import android.app.Notification; 46import android.app.NotificationManager; 47import android.app.PendingIntent; 48import android.app.StatusBarManager; 49import android.app.admin.DeviceAdminInfo; 50import android.app.admin.DeviceAdminReceiver; 51import android.app.admin.DevicePolicyManager; 52import android.app.admin.DevicePolicyManagerInternal; 53import android.app.admin.IDevicePolicyManager; 54import android.app.admin.SecurityLog; 55import android.app.admin.SecurityLog.SecurityEvent; 56import android.app.admin.SystemUpdatePolicy; 57import android.app.backup.IBackupManager; 58import android.content.BroadcastReceiver; 59import android.content.ComponentName; 60import android.content.ContentResolver; 61import android.content.Context; 62import android.content.Intent; 63import android.content.IntentFilter; 64import android.content.pm.ActivityInfo; 65import android.content.pm.ApplicationInfo; 66import android.content.pm.IPackageManager; 67import android.content.pm.PackageInfo; 68import android.content.pm.PackageManager; 69import android.content.pm.PackageManager.NameNotFoundException; 70import android.content.pm.PackageManagerInternal; 71import android.content.pm.ParceledListSlice; 72import android.content.pm.ResolveInfo; 73import android.content.pm.ServiceInfo; 74import android.content.pm.UserInfo; 75import android.database.ContentObserver; 76import android.graphics.Bitmap; 77import android.graphics.Color; 78import android.media.AudioManager; 79import android.media.IAudioService; 80import android.net.ConnectivityManager; 81import android.net.ProxyInfo; 82import android.net.Uri; 83import android.net.wifi.WifiInfo; 84import android.net.wifi.WifiManager; 85import android.os.AsyncTask; 86import android.os.Binder; 87import android.os.Build; 88import android.os.Build.VERSION_CODES; 89import android.os.Bundle; 90import android.os.Environment; 91import android.os.FileUtils; 92import android.os.Handler; 93import android.os.IBinder; 94import android.os.Looper; 95import android.os.ParcelFileDescriptor; 96import android.os.PersistableBundle; 97import android.os.PowerManager; 98import android.os.PowerManagerInternal; 99import android.os.Process; 100import android.os.RecoverySystem; 101import android.os.RemoteCallback; 102import android.os.RemoteException; 103import android.os.ServiceManager; 104import android.os.SystemClock; 105import android.os.SystemProperties; 106import android.os.UserHandle; 107import android.os.UserManager; 108import android.os.UserManagerInternal; 109import android.os.storage.StorageManager; 110import android.provider.ContactsContract.QuickContact; 111import android.provider.ContactsInternal; 112import android.provider.Settings; 113import android.security.Credentials; 114import android.security.IKeyChainAliasCallback; 115import android.security.IKeyChainService; 116import android.security.KeyChain; 117import android.security.KeyChain.KeyChainConnection; 118import android.service.persistentdata.PersistentDataBlockManager; 119import android.telephony.TelephonyManager; 120import android.text.TextUtils; 121import android.util.ArrayMap; 122import android.util.ArraySet; 123import android.util.Log; 124import android.util.Pair; 125import android.util.Slog; 126import android.util.SparseArray; 127import android.util.Xml; 128import android.view.IWindowManager; 129import android.view.accessibility.AccessibilityManager; 130import android.view.accessibility.IAccessibilityManager; 131import android.view.inputmethod.InputMethodInfo; 132import android.view.inputmethod.InputMethodManager; 133 134import com.android.internal.R; 135import com.android.internal.annotations.VisibleForTesting; 136import com.android.internal.statusbar.IStatusBarService; 137import com.android.internal.util.FastXmlSerializer; 138import com.android.internal.util.JournaledFile; 139import com.android.internal.util.ParcelableString; 140import com.android.internal.util.Preconditions; 141import com.android.internal.util.XmlUtils; 142import com.android.internal.widget.LockPatternUtils; 143import com.android.server.LocalServices; 144import com.android.server.SystemService; 145import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 146import com.android.server.pm.UserRestrictionsUtils; 147import com.google.android.collect.Sets; 148 149import org.xmlpull.v1.XmlPullParser; 150import org.xmlpull.v1.XmlPullParserException; 151import org.xmlpull.v1.XmlSerializer; 152 153import java.io.ByteArrayInputStream; 154import java.io.File; 155import java.io.FileDescriptor; 156import java.io.FileInputStream; 157import java.io.FileNotFoundException; 158import java.io.FileOutputStream; 159import java.io.IOException; 160import java.io.PrintWriter; 161import java.lang.annotation.Retention; 162import java.lang.annotation.RetentionPolicy; 163import java.nio.charset.StandardCharsets; 164import java.security.cert.CertificateException; 165import java.security.cert.CertificateFactory; 166import java.security.cert.X509Certificate; 167import java.text.DateFormat; 168import java.util.ArrayList; 169import java.util.Arrays; 170import java.util.Collections; 171import java.util.Date; 172import java.util.List; 173import java.util.Map.Entry; 174import java.util.Set; 175import java.util.concurrent.atomic.AtomicBoolean; 176 177/** 178 * Implementation of the device policy APIs. 179 */ 180public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 181 182 private static final String LOG_TAG = "DevicePolicyManagerService"; 183 184 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 185 186 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 187 188 private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate"; 189 190 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 191 192 private static final String TAG_STATUS_BAR = "statusbar"; 193 194 private static final String ATTR_DISABLED = "disabled"; 195 196 private static final String ATTR_NAME = "name"; 197 198 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 199 "do-not-ask-credentials-on-boot"; 200 201 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 202 203 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 204 205 private static final String ATTR_VALUE = "value"; 206 207 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 208 209 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 210 211 private static final long MS_PER_DAY = 86400 * 1000; 212 213 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 214 215 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 216 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 217 218 private static final int MONITORING_CERT_NOTIFICATION_ID = R.string.ssl_ca_cert_warning; 219 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 220 221 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 222 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 223 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 224 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 225 226 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 227 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 228 = "application-restrictions-manager"; 229 230 /** 231 * System property whose value is either "true" or "false", indicating whether 232 */ 233 private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner"; 234 235 private static final int STATUS_BAR_DISABLE_MASK = 236 StatusBarManager.DISABLE_EXPAND | 237 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 238 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 239 StatusBarManager.DISABLE_SEARCH; 240 241 private static final int STATUS_BAR_DISABLE2_MASK = 242 StatusBarManager.DISABLE2_QUICK_SETTINGS; 243 244 private static final Set<String> SECURE_SETTINGS_WHITELIST; 245 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 246 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 247 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 248 static { 249 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 250 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 251 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 252 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 253 254 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 255 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 256 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 257 258 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 259 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 260 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 261 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 262 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 263 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 264 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 265 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 266 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 267 268 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 269 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 270 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 271 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 272 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 273 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 274 } 275 276 /** 277 * Keyguard features that when set on a managed profile that doesn't have its own challenge will 278 * affect the profile's parent user. These can also be set on the managed profile's parent DPM 279 * instance. 280 */ 281 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 282 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 283 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 284 285 /** 286 * Keyguard features that when set on a profile affect the profile content or challenge only. 287 * These cannot be set on the managed profile's parent DPM instance 288 */ 289 private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY = 290 DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 291 292 /** Keyguard features that are allowed to be set on a managed profile */ 293 private static final int PROFILE_KEYGUARD_FEATURES = 294 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY; 295 296 private static final int CODE_OK = 0; 297 private static final int CODE_HAS_DEVICE_OWNER = 1; 298 private static final int CODE_USER_HAS_PROFILE_OWNER = 2; 299 private static final int CODE_USER_NOT_RUNNING = 3; 300 private static final int CODE_USER_SETUP_COMPLETED = 4; 301 private static final int CODE_NONSYSTEM_USER_EXISTS = 5; 302 private static final int CODE_ACCOUNTS_NOT_EMPTY = 6; 303 private static final int CODE_NOT_SYSTEM_USER = 7; 304 305 @Retention(RetentionPolicy.SOURCE) 306 @IntDef({ CODE_OK, CODE_HAS_DEVICE_OWNER, CODE_USER_HAS_PROFILE_OWNER, CODE_USER_NOT_RUNNING, 307 CODE_USER_SETUP_COMPLETED, CODE_NOT_SYSTEM_USER }) 308 private @interface DeviceOwnerPreConditionCode {} 309 310 private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000; 311 312 final Context mContext; 313 final Injector mInjector; 314 final IPackageManager mIPackageManager; 315 final UserManager mUserManager; 316 final UserManagerInternal mUserManagerInternal; 317 final TelephonyManager mTelephonyManager; 318 private final LockPatternUtils mLockPatternUtils; 319 320 /** 321 * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p 322 * is requested for user u. 323 */ 324 private final Set<Pair<String, Integer>> mPackagesToRemove = 325 new ArraySet<Pair<String, Integer>>(); 326 327 final LocalService mLocalService; 328 329 // Stores and loads state on device and profile owners. 330 @VisibleForTesting 331 final Owners mOwners; 332 333 private final Binder mToken = new Binder(); 334 335 /** 336 * Whether or not device admin feature is supported. If it isn't return defaults for all 337 * public methods. 338 */ 339 boolean mHasFeature; 340 341 private final SecurityLogMonitor mSecurityLogMonitor; 342 343 private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean(); 344 private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean(); 345 346 private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() { 347 @Override 348 public void run() { 349 if(mRemoteBugreportServiceIsActive.get()) { 350 onBugreportFailed(); 351 } 352 } 353 }; 354 355 private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() { 356 357 @Override 358 public void onReceive(Context context, Intent intent) { 359 if (DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction()) 360 && mRemoteBugreportServiceIsActive.get()) { 361 onBugreportFinished(intent); 362 } 363 } 364 }; 365 366 private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() { 367 368 @Override 369 public void onReceive(Context context, Intent intent) { 370 String action = intent.getAction(); 371 mInjector.getNotificationManager().cancel(LOG_TAG, 372 RemoteBugreportUtils.NOTIFICATION_ID); 373 if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED.equals(action)) { 374 onBugreportSharingAccepted(); 375 } else if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED.equals(action)) { 376 onBugreportSharingDeclined(); 377 } 378 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 379 } 380 }; 381 382 public static final class Lifecycle extends SystemService { 383 private DevicePolicyManagerService mService; 384 385 public Lifecycle(Context context) { 386 super(context); 387 mService = new DevicePolicyManagerService(context); 388 } 389 390 @Override 391 public void onStart() { 392 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 393 } 394 395 @Override 396 public void onBootPhase(int phase) { 397 mService.systemReady(phase); 398 } 399 400 @Override 401 public void onStartUser(int userHandle) { 402 mService.onStartUser(userHandle); 403 } 404 } 405 406 public static class DevicePolicyData { 407 int mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 408 int mActivePasswordLength = 0; 409 int mActivePasswordUpperCase = 0; 410 int mActivePasswordLowerCase = 0; 411 int mActivePasswordLetters = 0; 412 int mActivePasswordNumeric = 0; 413 int mActivePasswordSymbols = 0; 414 int mActivePasswordNonLetter = 0; 415 int mFailedPasswordAttempts = 0; 416 417 int mUserHandle; 418 int mPasswordOwner = -1; 419 long mLastMaximumTimeToLock = -1; 420 boolean mUserSetupComplete = false; 421 int mUserProvisioningState; 422 int mPermissionPolicy; 423 424 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 425 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 426 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 427 428 final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>(); 429 430 // This is the list of component allowed to start lock task mode. 431 List<String> mLockTaskPackages = new ArrayList<>(); 432 433 boolean mStatusBarDisabled = false; 434 435 ComponentName mRestrictionsProvider; 436 437 String mDelegatedCertInstallerPackage; 438 439 boolean doNotAskCredentialsOnBoot = false; 440 441 String mApplicationRestrictionsManagingPackage; 442 443 Set<String> mAffiliationIds = new ArraySet<>(); 444 445 // Used for initialization of users created by createAndManageUsers. 446 boolean mAdminBroadcastPending = false; 447 PersistableBundle mInitBundle = null; 448 449 public DevicePolicyData(int userHandle) { 450 mUserHandle = userHandle; 451 } 452 } 453 454 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 455 456 final Handler mHandler; 457 458 BroadcastReceiver mReceiver = new BroadcastReceiver() { 459 @Override 460 public void onReceive(Context context, Intent intent) { 461 final String action = intent.getAction(); 462 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 463 getSendingUserId()); 464 465 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 466 && userHandle == mOwners.getDeviceOwnerUserId() 467 && getDeviceOwnerRemoteBugreportUri() != null) { 468 IntentFilter filterConsent = new IntentFilter(); 469 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 470 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 471 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 472 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 473 RemoteBugreportUtils.NOTIFICATION_ID, 474 RemoteBugreportUtils.buildNotification(mContext, 475 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 476 UserHandle.ALL); 477 } 478 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 479 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 480 if (VERBOSE_LOG) { 481 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 482 + action + " for user " + userHandle); 483 } 484 mHandler.post(new Runnable() { 485 @Override 486 public void run() { 487 handlePasswordExpirationNotification(userHandle); 488 } 489 }); 490 } 491 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 492 || KeyChain.ACTION_STORAGE_CHANGED.equals(action)) { 493 int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 494 new MonitoringCertNotificationTask().execute(userId); 495 } 496 if (Intent.ACTION_USER_ADDED.equals(action)) { 497 disableSecurityLoggingIfNotCompliant(); 498 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 499 disableSecurityLoggingIfNotCompliant(); 500 removeUserData(userHandle); 501 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 502 synchronized (DevicePolicyManagerService.this) { 503 // Reset the policy data 504 mUserData.remove(userHandle); 505 sendAdminEnabledBroadcastLocked(userHandle); 506 } 507 handlePackagesChanged(null /* check all admins */, userHandle); 508 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 509 handlePackagesChanged(null /* check all admins */, userHandle); 510 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 511 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 512 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 513 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 514 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 515 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 516 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 517 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 518 clearWipeProfileNotification(); 519 } 520 } 521 }; 522 523 static class ActiveAdmin { 524 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 525 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 526 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 527 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 528 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 529 = "disable-bt-contacts-sharing"; 530 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 531 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 532 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 533 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 534 private static final String TAG_ACCOUNT_TYPE = "account-type"; 535 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 536 = "permitted-accessiblity-services"; 537 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 538 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 539 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 540 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 541 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 542 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 543 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 544 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 545 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 546 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 547 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 548 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 549 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 550 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 551 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 552 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 553 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 554 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 555 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 556 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 557 private static final String ATTR_VALUE = "value"; 558 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 559 private static final String TAG_POLICIES = "policies"; 560 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 561 "cross-profile-widget-providers"; 562 private static final String TAG_PROVIDER = "provider"; 563 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 564 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 565 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 566 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 567 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 568 private static final String TAG_PARENT_ADMIN = "parent-admin"; 569 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 570 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 571 572 final DeviceAdminInfo info; 573 574 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 575 576 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 577 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 578 579 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 580 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 581 582 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 583 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 584 585 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 586 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 587 588 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 589 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 590 591 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 592 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 593 594 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 595 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 596 597 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 598 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 599 600 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 601 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 602 603 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 604 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 605 606 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 607 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 608 609 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 610 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 611 612 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 613 614 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 615 616 boolean encryptionRequested = false; 617 boolean disableCamera = false; 618 boolean disableCallerId = false; 619 boolean disableContactsSearch = false; 620 boolean disableBluetoothContactSharing = true; 621 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 622 boolean requireAutoTime = false; // Can only be set by a device owner. 623 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 624 625 ActiveAdmin parentAdmin; 626 final boolean isParent; 627 628 static class TrustAgentInfo { 629 public PersistableBundle options; 630 TrustAgentInfo(PersistableBundle bundle) { 631 options = bundle; 632 } 633 } 634 635 Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 636 637 // The list of permitted accessibility services package namesas set by a profile 638 // or device owner. Null means all accessibility services are allowed, empty means 639 // none except system services are allowed. 640 List<String> permittedAccessiblityServices; 641 642 // The list of permitted input methods package names as set by a profile or device owner. 643 // Null means all input methods are allowed, empty means none except system imes are 644 // allowed. 645 List<String> permittedInputMethods; 646 647 // List of package names to keep cached. 648 List<String> keepUninstalledPackages; 649 650 // TODO: review implementation decisions with frameworks team 651 boolean specifiesGlobalProxy = false; 652 String globalProxySpec = null; 653 String globalProxyExclusionList = null; 654 655 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 656 657 List<String> crossProfileWidgetProviders; 658 659 Bundle userRestrictions; 660 661 // Support text provided by the admin to display to the user. 662 String shortSupportMessage = null; 663 String longSupportMessage = null; 664 665 // Background color of confirm credentials screen. Default: teal. 666 static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B"); 667 int organizationColor = DEF_ORGANIZATION_COLOR; 668 669 // Default title of confirm credentials screen 670 String organizationName = null; 671 672 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 673 info = _info; 674 isParent = parent; 675 } 676 677 ActiveAdmin getParentActiveAdmin() { 678 Preconditions.checkState(!isParent); 679 680 if (parentAdmin == null) { 681 parentAdmin = new ActiveAdmin(info, /* parent */ true); 682 } 683 return parentAdmin; 684 } 685 686 boolean hasParentActiveAdmin() { 687 return parentAdmin != null; 688 } 689 690 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 691 692 public UserHandle getUserHandle() { 693 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 694 } 695 696 void writeToXml(XmlSerializer out) 697 throws IllegalArgumentException, IllegalStateException, IOException { 698 out.startTag(null, TAG_POLICIES); 699 info.writePoliciesToXml(out); 700 out.endTag(null, TAG_POLICIES); 701 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 702 out.startTag(null, TAG_PASSWORD_QUALITY); 703 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 704 out.endTag(null, TAG_PASSWORD_QUALITY); 705 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 706 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 707 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 708 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 709 } 710 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 711 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 712 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 713 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 714 } 715 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 716 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 717 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 718 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 719 } 720 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 721 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 722 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 723 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 724 } 725 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 726 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 727 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 728 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 729 } 730 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 731 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 732 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 733 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 734 } 735 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 736 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 737 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 738 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 739 } 740 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 741 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 742 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 743 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 744 } 745 } 746 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 747 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 748 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 749 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 750 } 751 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 752 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 753 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 754 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 755 } 756 if (specifiesGlobalProxy) { 757 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 758 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 759 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 760 if (globalProxySpec != null) { 761 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 762 out.attribute(null, ATTR_VALUE, globalProxySpec); 763 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 764 } 765 if (globalProxyExclusionList != null) { 766 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 767 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 768 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 769 } 770 } 771 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 772 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 773 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 774 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 775 } 776 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 777 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 778 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 779 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 780 } 781 if (encryptionRequested) { 782 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 783 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 784 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 785 } 786 if (disableCamera) { 787 out.startTag(null, TAG_DISABLE_CAMERA); 788 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 789 out.endTag(null, TAG_DISABLE_CAMERA); 790 } 791 if (disableCallerId) { 792 out.startTag(null, TAG_DISABLE_CALLER_ID); 793 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 794 out.endTag(null, TAG_DISABLE_CALLER_ID); 795 } 796 if (disableContactsSearch) { 797 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 798 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 799 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 800 } 801 if (!disableBluetoothContactSharing) { 802 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 803 out.attribute(null, ATTR_VALUE, 804 Boolean.toString(disableBluetoothContactSharing)); 805 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 806 } 807 if (disableScreenCapture) { 808 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 809 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 810 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 811 } 812 if (requireAutoTime) { 813 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 814 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 815 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 816 } 817 if (forceEphemeralUsers) { 818 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 819 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 820 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 821 } 822 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 823 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 824 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 825 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 826 } 827 if (!accountTypesWithManagementDisabled.isEmpty()) { 828 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 829 for (String ac : accountTypesWithManagementDisabled) { 830 out.startTag(null, TAG_ACCOUNT_TYPE); 831 out.attribute(null, ATTR_VALUE, ac); 832 out.endTag(null, TAG_ACCOUNT_TYPE); 833 } 834 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 835 } 836 if (!trustAgentInfos.isEmpty()) { 837 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 838 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 839 for (Entry<String, TrustAgentInfo> entry : set) { 840 TrustAgentInfo trustAgentInfo = entry.getValue(); 841 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 842 out.attribute(null, ATTR_VALUE, entry.getKey()); 843 if (trustAgentInfo.options != null) { 844 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 845 try { 846 trustAgentInfo.options.saveToXml(out); 847 } catch (XmlPullParserException e) { 848 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 849 } 850 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 851 } 852 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 853 } 854 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 855 } 856 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 857 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 858 final int providerCount = crossProfileWidgetProviders.size(); 859 for (int i = 0; i < providerCount; i++) { 860 String provider = crossProfileWidgetProviders.get(i); 861 out.startTag(null, TAG_PROVIDER); 862 out.attribute(null, ATTR_VALUE, provider); 863 out.endTag(null, TAG_PROVIDER); 864 } 865 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 866 } 867 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 868 permittedAccessiblityServices); 869 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 870 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 871 if (hasUserRestrictions()) { 872 UserRestrictionsUtils.writeRestrictions( 873 out, userRestrictions, TAG_USER_RESTRICTIONS); 874 } 875 if (!TextUtils.isEmpty(shortSupportMessage)) { 876 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 877 out.text(shortSupportMessage); 878 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 879 } 880 if (!TextUtils.isEmpty(longSupportMessage)) { 881 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 882 out.text(longSupportMessage); 883 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 884 } 885 if (parentAdmin != null) { 886 out.startTag(null, TAG_PARENT_ADMIN); 887 parentAdmin.writeToXml(out); 888 out.endTag(null, TAG_PARENT_ADMIN); 889 } 890 if (organizationColor != DEF_ORGANIZATION_COLOR) { 891 out.startTag(null, TAG_ORGANIZATION_COLOR); 892 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 893 out.endTag(null, TAG_ORGANIZATION_COLOR); 894 } 895 if (organizationName != null) { 896 out.startTag(null, TAG_ORGANIZATION_NAME); 897 out.text(organizationName); 898 out.endTag(null, TAG_ORGANIZATION_NAME); 899 } 900 } 901 902 void writePackageListToXml(XmlSerializer out, String outerTag, 903 List<String> packageList) 904 throws IllegalArgumentException, IllegalStateException, IOException { 905 if (packageList == null) { 906 return; 907 } 908 909 out.startTag(null, outerTag); 910 for (String packageName : packageList) { 911 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 912 out.attribute(null, ATTR_VALUE, packageName); 913 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 914 } 915 out.endTag(null, outerTag); 916 } 917 918 void readFromXml(XmlPullParser parser) 919 throws XmlPullParserException, IOException { 920 int outerDepth = parser.getDepth(); 921 int type; 922 while ((type=parser.next()) != END_DOCUMENT 923 && (type != END_TAG || parser.getDepth() > outerDepth)) { 924 if (type == END_TAG || type == TEXT) { 925 continue; 926 } 927 String tag = parser.getName(); 928 if (TAG_POLICIES.equals(tag)) { 929 info.readPoliciesFromXml(parser); 930 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 931 passwordQuality = Integer.parseInt( 932 parser.getAttributeValue(null, ATTR_VALUE)); 933 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 934 minimumPasswordLength = Integer.parseInt( 935 parser.getAttributeValue(null, ATTR_VALUE)); 936 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 937 passwordHistoryLength = Integer.parseInt( 938 parser.getAttributeValue(null, ATTR_VALUE)); 939 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 940 minimumPasswordUpperCase = Integer.parseInt( 941 parser.getAttributeValue(null, ATTR_VALUE)); 942 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 943 minimumPasswordLowerCase = Integer.parseInt( 944 parser.getAttributeValue(null, ATTR_VALUE)); 945 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 946 minimumPasswordLetters = Integer.parseInt( 947 parser.getAttributeValue(null, ATTR_VALUE)); 948 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 949 minimumPasswordNumeric = Integer.parseInt( 950 parser.getAttributeValue(null, ATTR_VALUE)); 951 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 952 minimumPasswordSymbols = Integer.parseInt( 953 parser.getAttributeValue(null, ATTR_VALUE)); 954 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 955 minimumPasswordNonLetter = Integer.parseInt( 956 parser.getAttributeValue(null, ATTR_VALUE)); 957 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 958 maximumTimeToUnlock = Long.parseLong( 959 parser.getAttributeValue(null, ATTR_VALUE)); 960 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 961 maximumFailedPasswordsForWipe = Integer.parseInt( 962 parser.getAttributeValue(null, ATTR_VALUE)); 963 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 964 specifiesGlobalProxy = Boolean.parseBoolean( 965 parser.getAttributeValue(null, ATTR_VALUE)); 966 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 967 globalProxySpec = 968 parser.getAttributeValue(null, ATTR_VALUE); 969 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 970 globalProxyExclusionList = 971 parser.getAttributeValue(null, ATTR_VALUE); 972 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 973 passwordExpirationTimeout = Long.parseLong( 974 parser.getAttributeValue(null, ATTR_VALUE)); 975 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 976 passwordExpirationDate = Long.parseLong( 977 parser.getAttributeValue(null, ATTR_VALUE)); 978 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 979 encryptionRequested = Boolean.parseBoolean( 980 parser.getAttributeValue(null, ATTR_VALUE)); 981 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 982 disableCamera = Boolean.parseBoolean( 983 parser.getAttributeValue(null, ATTR_VALUE)); 984 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 985 disableCallerId = Boolean.parseBoolean( 986 parser.getAttributeValue(null, ATTR_VALUE)); 987 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 988 disableContactsSearch = Boolean.parseBoolean( 989 parser.getAttributeValue(null, ATTR_VALUE)); 990 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 991 disableBluetoothContactSharing = Boolean.parseBoolean(parser 992 .getAttributeValue(null, ATTR_VALUE)); 993 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 994 disableScreenCapture = Boolean.parseBoolean( 995 parser.getAttributeValue(null, ATTR_VALUE)); 996 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 997 requireAutoTime = Boolean.parseBoolean( 998 parser.getAttributeValue(null, ATTR_VALUE)); 999 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 1000 forceEphemeralUsers = Boolean.parseBoolean( 1001 parser.getAttributeValue(null, ATTR_VALUE)); 1002 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 1003 disabledKeyguardFeatures = Integer.parseInt( 1004 parser.getAttributeValue(null, ATTR_VALUE)); 1005 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 1006 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 1007 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 1008 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 1009 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 1010 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 1011 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 1012 permittedAccessiblityServices = readPackageList(parser, tag); 1013 } else if (TAG_PERMITTED_IMES.equals(tag)) { 1014 permittedInputMethods = readPackageList(parser, tag); 1015 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 1016 keepUninstalledPackages = readPackageList(parser, tag); 1017 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 1018 UserRestrictionsUtils.readRestrictions(parser, ensureUserRestrictions()); 1019 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 1020 type = parser.next(); 1021 if (type == XmlPullParser.TEXT) { 1022 shortSupportMessage = parser.getText(); 1023 } else { 1024 Log.w(LOG_TAG, "Missing text when loading short support message"); 1025 } 1026 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 1027 type = parser.next(); 1028 if (type == XmlPullParser.TEXT) { 1029 longSupportMessage = parser.getText(); 1030 } else { 1031 Log.w(LOG_TAG, "Missing text when loading long support message"); 1032 } 1033 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1034 Preconditions.checkState(!isParent); 1035 1036 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1037 parentAdmin.readFromXml(parser); 1038 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1039 organizationColor = Integer.parseInt( 1040 parser.getAttributeValue(null, ATTR_VALUE)); 1041 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1042 type = parser.next(); 1043 if (type == XmlPullParser.TEXT) { 1044 organizationName = parser.getText(); 1045 } else { 1046 Log.w(LOG_TAG, "Missing text when loading organization name"); 1047 } 1048 } else { 1049 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1050 XmlUtils.skipCurrentTag(parser); 1051 } 1052 } 1053 } 1054 1055 private List<String> readPackageList(XmlPullParser parser, 1056 String tag) throws XmlPullParserException, IOException { 1057 List<String> result = new ArrayList<String>(); 1058 int outerDepth = parser.getDepth(); 1059 int outerType; 1060 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1061 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1062 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1063 continue; 1064 } 1065 String outerTag = parser.getName(); 1066 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1067 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1068 if (packageName != null) { 1069 result.add(packageName); 1070 } else { 1071 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1072 } 1073 } else { 1074 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1075 } 1076 } 1077 return result; 1078 } 1079 1080 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 1081 throws XmlPullParserException, IOException { 1082 int outerDepthDAM = parser.getDepth(); 1083 int typeDAM; 1084 Set<String> result = new ArraySet<>(); 1085 while ((typeDAM=parser.next()) != END_DOCUMENT 1086 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1087 if (typeDAM == END_TAG || typeDAM == TEXT) { 1088 continue; 1089 } 1090 String tagDAM = parser.getName(); 1091 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 1092 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1093 } else { 1094 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1095 } 1096 } 1097 return result; 1098 } 1099 1100 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1101 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1102 int outerDepthDAM = parser.getDepth(); 1103 int typeDAM; 1104 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1105 while ((typeDAM=parser.next()) != END_DOCUMENT 1106 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1107 if (typeDAM == END_TAG || typeDAM == TEXT) { 1108 continue; 1109 } 1110 String tagDAM = parser.getName(); 1111 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1112 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1113 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1114 result.put(component, trustAgentInfo); 1115 } else { 1116 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1117 } 1118 } 1119 return result; 1120 } 1121 1122 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1123 throws XmlPullParserException, IOException { 1124 int outerDepthDAM = parser.getDepth(); 1125 int typeDAM; 1126 TrustAgentInfo result = new TrustAgentInfo(null); 1127 while ((typeDAM=parser.next()) != END_DOCUMENT 1128 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1129 if (typeDAM == END_TAG || typeDAM == TEXT) { 1130 continue; 1131 } 1132 String tagDAM = parser.getName(); 1133 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 1134 PersistableBundle bundle = new PersistableBundle(); 1135 bundle.restoreFromXml(parser); 1136 result.options = bundle; 1137 } else { 1138 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1139 } 1140 } 1141 return result; 1142 } 1143 1144 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 1145 throws XmlPullParserException, IOException { 1146 int outerDepthDAM = parser.getDepth(); 1147 int typeDAM; 1148 ArrayList<String> result = null; 1149 while ((typeDAM=parser.next()) != END_DOCUMENT 1150 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1151 if (typeDAM == END_TAG || typeDAM == TEXT) { 1152 continue; 1153 } 1154 String tagDAM = parser.getName(); 1155 if (TAG_PROVIDER.equals(tagDAM)) { 1156 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 1157 if (result == null) { 1158 result = new ArrayList<>(); 1159 } 1160 result.add(provider); 1161 } else { 1162 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1163 } 1164 } 1165 return result; 1166 } 1167 1168 boolean hasUserRestrictions() { 1169 return userRestrictions != null && userRestrictions.size() > 0; 1170 } 1171 1172 Bundle ensureUserRestrictions() { 1173 if (userRestrictions == null) { 1174 userRestrictions = new Bundle(); 1175 } 1176 return userRestrictions; 1177 } 1178 1179 void dump(String prefix, PrintWriter pw) { 1180 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1181 pw.print(prefix); pw.println("policies:"); 1182 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1183 if (pols != null) { 1184 for (int i=0; i<pols.size(); i++) { 1185 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1186 } 1187 } 1188 pw.print(prefix); pw.print("passwordQuality=0x"); 1189 pw.println(Integer.toHexString(passwordQuality)); 1190 pw.print(prefix); pw.print("minimumPasswordLength="); 1191 pw.println(minimumPasswordLength); 1192 pw.print(prefix); pw.print("passwordHistoryLength="); 1193 pw.println(passwordHistoryLength); 1194 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1195 pw.println(minimumPasswordUpperCase); 1196 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1197 pw.println(minimumPasswordLowerCase); 1198 pw.print(prefix); pw.print("minimumPasswordLetters="); 1199 pw.println(minimumPasswordLetters); 1200 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1201 pw.println(minimumPasswordNumeric); 1202 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1203 pw.println(minimumPasswordSymbols); 1204 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1205 pw.println(minimumPasswordNonLetter); 1206 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1207 pw.println(maximumTimeToUnlock); 1208 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1209 pw.println(maximumFailedPasswordsForWipe); 1210 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1211 pw.println(specifiesGlobalProxy); 1212 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1213 pw.println(passwordExpirationTimeout); 1214 pw.print(prefix); pw.print("passwordExpirationDate="); 1215 pw.println(passwordExpirationDate); 1216 if (globalProxySpec != null) { 1217 pw.print(prefix); pw.print("globalProxySpec="); 1218 pw.println(globalProxySpec); 1219 } 1220 if (globalProxyExclusionList != null) { 1221 pw.print(prefix); pw.print("globalProxyEclusionList="); 1222 pw.println(globalProxyExclusionList); 1223 } 1224 pw.print(prefix); pw.print("encryptionRequested="); 1225 pw.println(encryptionRequested); 1226 pw.print(prefix); pw.print("disableCamera="); 1227 pw.println(disableCamera); 1228 pw.print(prefix); pw.print("disableCallerId="); 1229 pw.println(disableCallerId); 1230 pw.print(prefix); pw.print("disableContactsSearch="); 1231 pw.println(disableContactsSearch); 1232 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1233 pw.println(disableBluetoothContactSharing); 1234 pw.print(prefix); pw.print("disableScreenCapture="); 1235 pw.println(disableScreenCapture); 1236 pw.print(prefix); pw.print("requireAutoTime="); 1237 pw.println(requireAutoTime); 1238 pw.print(prefix); pw.print("forceEphemeralUsers="); 1239 pw.println(forceEphemeralUsers); 1240 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1241 pw.println(disabledKeyguardFeatures); 1242 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1243 pw.println(crossProfileWidgetProviders); 1244 if (permittedAccessiblityServices != null) { 1245 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1246 pw.println(permittedAccessiblityServices); 1247 } 1248 if (permittedInputMethods != null) { 1249 pw.print(prefix); pw.print("permittedInputMethods="); 1250 pw.println(permittedInputMethods); 1251 } 1252 if (keepUninstalledPackages != null) { 1253 pw.print(prefix); pw.print("keepUninstalledPackages="); 1254 pw.println(keepUninstalledPackages); 1255 } 1256 pw.print(prefix); pw.print("organizationColor="); 1257 pw.println(organizationColor); 1258 if (organizationName != null) { 1259 pw.print(prefix); pw.print("organizationName="); 1260 pw.println(organizationName); 1261 } 1262 pw.print(prefix); pw.println("userRestrictions:"); 1263 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1264 pw.print(prefix); pw.print("isParent="); 1265 pw.println(isParent); 1266 if (parentAdmin != null) { 1267 pw.print(prefix); pw.println("parentAdmin:"); 1268 parentAdmin.dump(prefix + " ", pw); 1269 } 1270 } 1271 } 1272 1273 private void handlePackagesChanged(String packageName, int userHandle) { 1274 boolean removed = false; 1275 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1276 DevicePolicyData policy = getUserData(userHandle); 1277 synchronized (this) { 1278 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1279 ActiveAdmin aa = policy.mAdminList.get(i); 1280 try { 1281 // If we're checking all packages or if the specific one we're checking matches, 1282 // then check if the package and receiver still exist. 1283 final String adminPackage = aa.info.getPackageName(); 1284 if (packageName == null || packageName.equals(adminPackage)) { 1285 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1286 || mIPackageManager.getReceiverInfo(aa.info.getComponent(), 1287 PackageManager.MATCH_DIRECT_BOOT_AWARE 1288 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 1289 userHandle) == null) { 1290 removed = true; 1291 policy.mAdminList.remove(i); 1292 policy.mAdminMap.remove(aa.info.getComponent()); 1293 } 1294 } 1295 } catch (RemoteException re) { 1296 // Shouldn't happen 1297 } 1298 } 1299 if (removed) { 1300 validatePasswordOwnerLocked(policy); 1301 saveSettingsLocked(policy.mUserHandle); 1302 } 1303 1304 // Check if delegated cert installer or app restrictions managing packages are removed. 1305 if (isRemovedPackage(packageName, policy.mDelegatedCertInstallerPackage, userHandle)) { 1306 policy.mDelegatedCertInstallerPackage = null; 1307 saveSettingsLocked(policy.mUserHandle); 1308 } 1309 if (isRemovedPackage( 1310 packageName, policy.mApplicationRestrictionsManagingPackage, userHandle)) { 1311 policy.mApplicationRestrictionsManagingPackage = null; 1312 saveSettingsLocked(policy.mUserHandle); 1313 } 1314 } 1315 if (removed) { 1316 // The removed admin might have disabled camera, so update user restrictions. 1317 pushUserRestrictions(userHandle); 1318 } 1319 } 1320 1321 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1322 try { 1323 return targetPackage != null 1324 && (changedPackage == null || changedPackage.equals(targetPackage)) 1325 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1326 } catch (RemoteException e) { 1327 // Shouldn't happen 1328 } 1329 1330 return false; 1331 } 1332 1333 /** 1334 * Unit test will subclass it to inject mocks. 1335 */ 1336 @VisibleForTesting 1337 static class Injector { 1338 1339 private final Context mContext; 1340 1341 Injector(Context context) { 1342 mContext = context; 1343 } 1344 1345 Owners newOwners() { 1346 return new Owners(mContext, getUserManager(), getUserManagerInternal()); 1347 } 1348 1349 UserManager getUserManager() { 1350 return UserManager.get(mContext); 1351 } 1352 1353 UserManagerInternal getUserManagerInternal() { 1354 return LocalServices.getService(UserManagerInternal.class); 1355 } 1356 1357 PackageManagerInternal getPackageManagerInternal() { 1358 return LocalServices.getService(PackageManagerInternal.class); 1359 } 1360 1361 NotificationManager getNotificationManager() { 1362 return mContext.getSystemService(NotificationManager.class); 1363 } 1364 1365 PowerManagerInternal getPowerManagerInternal() { 1366 return LocalServices.getService(PowerManagerInternal.class); 1367 } 1368 1369 TelephonyManager getTelephonyManager() { 1370 return TelephonyManager.from(mContext); 1371 } 1372 1373 IWindowManager getIWindowManager() { 1374 return IWindowManager.Stub 1375 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1376 } 1377 1378 IActivityManager getIActivityManager() { 1379 return ActivityManagerNative.getDefault(); 1380 } 1381 1382 IPackageManager getIPackageManager() { 1383 return AppGlobals.getPackageManager(); 1384 } 1385 1386 IBackupManager getIBackupManager() { 1387 return IBackupManager.Stub.asInterface( 1388 ServiceManager.getService(Context.BACKUP_SERVICE)); 1389 } 1390 1391 IAudioService getIAudioService() { 1392 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1393 } 1394 1395 LockPatternUtils newLockPatternUtils() { 1396 return new LockPatternUtils(mContext); 1397 } 1398 1399 boolean storageManagerIsFileBasedEncryptionEnabled() { 1400 return StorageManager.isFileEncryptedNativeOnly(); 1401 } 1402 1403 boolean storageManagerIsNonDefaultBlockEncrypted() { 1404 return StorageManager.isNonDefaultBlockEncrypted(); 1405 } 1406 1407 boolean storageManagerIsEncrypted() { 1408 return StorageManager.isEncrypted(); 1409 } 1410 1411 boolean storageManagerIsEncryptable() { 1412 return StorageManager.isEncryptable(); 1413 } 1414 1415 Looper getMyLooper() { 1416 return Looper.myLooper(); 1417 } 1418 1419 WifiManager getWifiManager() { 1420 return mContext.getSystemService(WifiManager.class); 1421 } 1422 1423 long binderClearCallingIdentity() { 1424 return Binder.clearCallingIdentity(); 1425 } 1426 1427 void binderRestoreCallingIdentity(long token) { 1428 Binder.restoreCallingIdentity(token); 1429 } 1430 1431 int binderGetCallingUid() { 1432 return Binder.getCallingUid(); 1433 } 1434 1435 int binderGetCallingPid() { 1436 return Binder.getCallingPid(); 1437 } 1438 1439 UserHandle binderGetCallingUserHandle() { 1440 return Binder.getCallingUserHandle(); 1441 } 1442 1443 boolean binderIsCallingUidMyUid() { 1444 return getCallingUid() == Process.myUid(); 1445 } 1446 1447 final int userHandleGetCallingUserId() { 1448 return UserHandle.getUserId(binderGetCallingUid()); 1449 } 1450 1451 File environmentGetUserSystemDirectory(int userId) { 1452 return Environment.getUserSystemDirectory(userId); 1453 } 1454 1455 void powerManagerGoToSleep(long time, int reason, int flags) { 1456 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1457 } 1458 1459 void powerManagerReboot(String reason) { 1460 mContext.getSystemService(PowerManager.class).reboot(reason); 1461 } 1462 1463 boolean systemPropertiesGetBoolean(String key, boolean def) { 1464 return SystemProperties.getBoolean(key, def); 1465 } 1466 1467 long systemPropertiesGetLong(String key, long def) { 1468 return SystemProperties.getLong(key, def); 1469 } 1470 1471 String systemPropertiesGet(String key, String def) { 1472 return SystemProperties.get(key, def); 1473 } 1474 1475 String systemPropertiesGet(String key) { 1476 return SystemProperties.get(key); 1477 } 1478 1479 void systemPropertiesSet(String key, String value) { 1480 SystemProperties.set(key, value); 1481 } 1482 1483 boolean userManagerIsSplitSystemUser() { 1484 return UserManager.isSplitSystemUser(); 1485 } 1486 1487 String getDevicePolicyFilePathForSystemUser() { 1488 return "/data/system/"; 1489 } 1490 1491 void registerContentObserver(Uri uri, boolean notifyForDescendents, 1492 ContentObserver observer, int userHandle) { 1493 mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents, 1494 observer, userHandle); 1495 } 1496 1497 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1498 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1499 name, def, userHandle); 1500 } 1501 1502 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1503 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1504 name, value, userHandle); 1505 } 1506 1507 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1508 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1509 name, value, userHandle); 1510 } 1511 1512 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1513 Settings.Global.putStringForUser(mContext.getContentResolver(), 1514 name, value, userHandle); 1515 } 1516 1517 void settingsSecurePutInt(String name, int value) { 1518 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1519 } 1520 1521 int settingsGlobalGetInt(String name, int def) { 1522 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1523 } 1524 1525 void settingsGlobalPutInt(String name, int value) { 1526 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1527 } 1528 1529 void settingsSecurePutString(String name, String value) { 1530 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1531 } 1532 1533 void settingsGlobalPutString(String name, String value) { 1534 Settings.Global.putString(mContext.getContentResolver(), name, value); 1535 } 1536 1537 void securityLogSetLoggingEnabledProperty(boolean enabled) { 1538 SecurityLog.setLoggingEnabledProperty(enabled); 1539 } 1540 1541 boolean securityLogGetLoggingEnabledProperty() { 1542 return SecurityLog.getLoggingEnabledProperty(); 1543 } 1544 1545 boolean securityLogIsLoggingEnabled() { 1546 return SecurityLog.isLoggingEnabled(); 1547 } 1548 } 1549 1550 /** 1551 * Instantiates the service. 1552 */ 1553 public DevicePolicyManagerService(Context context) { 1554 this(new Injector(context)); 1555 } 1556 1557 @VisibleForTesting 1558 DevicePolicyManagerService(Injector injector) { 1559 mInjector = injector; 1560 mContext = Preconditions.checkNotNull(injector.mContext); 1561 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1562 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1563 1564 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1565 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1566 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1567 mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager()); 1568 1569 mLocalService = new LocalService(); 1570 mLockPatternUtils = injector.newLockPatternUtils(); 1571 1572 mSecurityLogMonitor = new SecurityLogMonitor(this); 1573 1574 mHasFeature = mContext.getPackageManager() 1575 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1576 if (!mHasFeature) { 1577 // Skip the rest of the initialization 1578 return; 1579 } 1580 IntentFilter filter = new IntentFilter(); 1581 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1582 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1583 filter.addAction(Intent.ACTION_USER_ADDED); 1584 filter.addAction(Intent.ACTION_USER_REMOVED); 1585 filter.addAction(Intent.ACTION_USER_STARTED); 1586 filter.addAction(KeyChain.ACTION_STORAGE_CHANGED); 1587 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1588 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1589 filter = new IntentFilter(); 1590 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1591 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1592 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1593 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1594 filter.addDataScheme("package"); 1595 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1596 filter = new IntentFilter(); 1597 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1598 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1599 1600 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1601 } 1602 1603 /** 1604 * Creates and loads the policy data from xml. 1605 * @param userHandle the user for whom to load the policy data 1606 * @return 1607 */ 1608 @NonNull 1609 DevicePolicyData getUserData(int userHandle) { 1610 synchronized (this) { 1611 DevicePolicyData policy = mUserData.get(userHandle); 1612 if (policy == null) { 1613 policy = new DevicePolicyData(userHandle); 1614 mUserData.append(userHandle, policy); 1615 loadSettingsLocked(policy, userHandle); 1616 } 1617 return policy; 1618 } 1619 } 1620 1621 /** 1622 * Creates and loads the policy data from xml for data that is shared between 1623 * various profiles of a user. In contrast to {@link #getUserData(int)} 1624 * it allows access to data of users other than the calling user. 1625 * 1626 * This function should only be used for shared data, e.g. everything regarding 1627 * passwords and should be removed once multiple screen locks are present. 1628 * @param userHandle the user for whom to load the policy data 1629 * @return 1630 */ 1631 DevicePolicyData getUserDataUnchecked(int userHandle) { 1632 long ident = mInjector.binderClearCallingIdentity(); 1633 try { 1634 return getUserData(userHandle); 1635 } finally { 1636 mInjector.binderRestoreCallingIdentity(ident); 1637 } 1638 } 1639 1640 void removeUserData(int userHandle) { 1641 synchronized (this) { 1642 if (userHandle == UserHandle.USER_SYSTEM) { 1643 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1644 return; 1645 } 1646 mOwners.removeProfileOwner(userHandle); 1647 mOwners.writeProfileOwner(userHandle); 1648 1649 DevicePolicyData policy = mUserData.get(userHandle); 1650 if (policy != null) { 1651 mUserData.remove(userHandle); 1652 } 1653 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1654 DEVICE_POLICIES_XML); 1655 policyFile.delete(); 1656 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1657 } 1658 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1659 } 1660 1661 void loadOwners() { 1662 synchronized (this) { 1663 mOwners.load(); 1664 setDeviceOwnerSystemPropertyLocked(); 1665 findOwnerComponentIfNecessaryLocked(); 1666 migrateUserRestrictionsIfNecessaryLocked(); 1667 1668 // TODO PO may not have a class name either due to b/17652534. Address that too. 1669 1670 updateDeviceOwnerLocked(); 1671 } 1672 } 1673 1674 private void setDeviceOwnerSystemPropertyLocked() { 1675 // Device owner may still be provisioned, do not set the read-only system property yet. 1676 if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) == 0) { 1677 return; 1678 } 1679 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 1680 // always false at this point. 1681 if (StorageManager.inCryptKeeperBounce()) { 1682 return; 1683 } 1684 1685 if (!TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT))) { 1686 Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 1687 } else { 1688 if (mOwners.hasDeviceOwner()) { 1689 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "true"); 1690 Slog.i(LOG_TAG, "Set ro.device_owner property to true"); 1691 disableSecurityLoggingIfNotCompliant(); 1692 if (mInjector.securityLogGetLoggingEnabledProperty()) { 1693 mSecurityLogMonitor.start(); 1694 } 1695 } else { 1696 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "false"); 1697 Slog.i(LOG_TAG, "Set ro.device_owner property to false"); 1698 } 1699 } 1700 } 1701 1702 private void findOwnerComponentIfNecessaryLocked() { 1703 if (!mOwners.hasDeviceOwner()) { 1704 return; 1705 } 1706 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1707 1708 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1709 return; // Already a full component name. 1710 } 1711 1712 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1713 doComponentName.getPackageName(), 1714 mOwners.getDeviceOwnerUserId()); 1715 if (doComponent == null) { 1716 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1717 } else { 1718 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1719 doComponent, 1720 mOwners.getDeviceOwnerName(), 1721 mOwners.getDeviceOwnerUserId(), 1722 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1723 mOwners.writeDeviceOwner(); 1724 if (VERBOSE_LOG) { 1725 Log.v(LOG_TAG, "Device owner component filled in"); 1726 } 1727 } 1728 } 1729 1730 /** 1731 * We didn't use to persist user restrictions for each owners but only persisted in user 1732 * manager. 1733 */ 1734 private void migrateUserRestrictionsIfNecessaryLocked() { 1735 boolean migrated = false; 1736 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 1737 // except for the "system controlled" ones. 1738 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 1739 if (VERBOSE_LOG) { 1740 Log.v(LOG_TAG, "Migrating DO user restrictions"); 1741 } 1742 migrated = true; 1743 1744 // Migrate user 0 restrictions to DO. 1745 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 1746 1747 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 1748 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 1749 1750 // Push DO user restrictions to user manager. 1751 pushUserRestrictions(UserHandle.USER_SYSTEM); 1752 1753 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 1754 } 1755 1756 // Migrate for POs. 1757 1758 // The following restrictions can be set on secondary users by the device owner, so we 1759 // assume they're not from the PO. 1760 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 1761 UserManager.DISALLOW_OUTGOING_CALLS, 1762 UserManager.DISALLOW_SMS); 1763 1764 for (UserInfo ui : mUserManager.getUsers()) { 1765 final int userId = ui.id; 1766 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 1767 if (VERBOSE_LOG) { 1768 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 1769 } 1770 migrated = true; 1771 1772 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 1773 1774 final Set<String> exceptionList = 1775 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 1776 1777 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 1778 exceptionList, /* isDeviceOwner =*/ false); 1779 1780 // Note if a secondary user has no PO but has a DA that disables camera, we 1781 // don't get here and won't push the camera user restriction to UserManager 1782 // here. That's okay because we'll push user restrictions anyway when a user 1783 // starts. But we still do it because we want to let user manager persist 1784 // upon migration. 1785 pushUserRestrictions(userId); 1786 1787 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 1788 } 1789 } 1790 if (VERBOSE_LOG && migrated) { 1791 Log.v(LOG_TAG, "User restrictions migrated."); 1792 } 1793 } 1794 1795 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 1796 Set<String> exceptionList, boolean isDeviceOwner) { 1797 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 1798 user.getIdentifier()); 1799 1800 final Bundle newBaseRestrictions = new Bundle(); 1801 final Bundle newOwnerRestrictions = new Bundle(); 1802 1803 for (String key : origRestrictions.keySet()) { 1804 if (!origRestrictions.getBoolean(key)) { 1805 continue; 1806 } 1807 final boolean canOwnerChange = isDeviceOwner 1808 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 1809 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 1810 1811 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 1812 newBaseRestrictions.putBoolean(key, true); 1813 } else { 1814 newOwnerRestrictions.putBoolean(key, true); 1815 } 1816 } 1817 1818 if (VERBOSE_LOG) { 1819 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 1820 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 1821 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 1822 } 1823 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 1824 newBaseRestrictions); 1825 1826 if (admin != null) { 1827 admin.ensureUserRestrictions().clear(); 1828 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 1829 } else { 1830 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 1831 } 1832 saveSettingsLocked(user.getIdentifier()); 1833 } 1834 1835 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 1836 final DevicePolicyData policy = getUserData(userId); 1837 final int n = policy.mAdminList.size(); 1838 ComponentName found = null; 1839 int nFound = 0; 1840 for (int i = 0; i < n; i++) { 1841 final ActiveAdmin admin = policy.mAdminList.get(i); 1842 if (packageName.equals(admin.info.getPackageName())) { 1843 // Found! 1844 if (nFound == 0) { 1845 found = admin.info.getComponent(); 1846 } 1847 nFound++; 1848 } 1849 } 1850 if (nFound > 1) { 1851 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 1852 } 1853 return found; 1854 } 1855 1856 /** 1857 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1858 * reminders. Clears alarm if no expirations are configured. 1859 */ 1860 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 1861 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 1862 final long now = System.currentTimeMillis(); 1863 final long timeToExpire = expiration - now; 1864 final long alarmTime; 1865 if (expiration == 0) { 1866 // No expirations are currently configured: Cancel alarm. 1867 alarmTime = 0; 1868 } else if (timeToExpire <= 0) { 1869 // The password has already expired: Repeat every 24 hours. 1870 alarmTime = now + MS_PER_DAY; 1871 } else { 1872 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1873 // the expiration time. 1874 long alarmInterval = timeToExpire % MS_PER_DAY; 1875 if (alarmInterval == 0) { 1876 alarmInterval = MS_PER_DAY; 1877 } 1878 alarmTime = now + alarmInterval; 1879 } 1880 1881 long token = mInjector.binderClearCallingIdentity(); 1882 try { 1883 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 1884 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1885 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1886 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1887 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1888 UserHandle.of(affectedUserHandle)); 1889 am.cancel(pi); 1890 if (alarmTime != 0) { 1891 am.set(AlarmManager.RTC, alarmTime, pi); 1892 } 1893 } finally { 1894 mInjector.binderRestoreCallingIdentity(token); 1895 } 1896 } 1897 1898 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1899 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1900 if (admin != null 1901 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1902 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1903 return admin; 1904 } 1905 return null; 1906 } 1907 1908 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 1909 if (parent) { 1910 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 1911 } 1912 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1913 if (admin != null && parent) { 1914 admin = admin.getParentActiveAdmin(); 1915 } 1916 return admin; 1917 } 1918 1919 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1920 throws SecurityException { 1921 final int callingUid = mInjector.binderGetCallingUid(); 1922 1923 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1924 if (result != null) { 1925 return result; 1926 } 1927 1928 if (who != null) { 1929 final int userId = UserHandle.getUserId(callingUid); 1930 final DevicePolicyData policy = getUserData(userId); 1931 ActiveAdmin admin = policy.mAdminMap.get(who); 1932 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1933 throw new SecurityException("Admin " + admin.info.getComponent() 1934 + " does not own the device"); 1935 } 1936 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1937 throw new SecurityException("Admin " + admin.info.getComponent() 1938 + " does not own the profile"); 1939 } 1940 throw new SecurityException("Admin " + admin.info.getComponent() 1941 + " did not specify uses-policy for: " 1942 + admin.info.getTagForPolicy(reqPolicy)); 1943 } else { 1944 throw new SecurityException("No active admin owned by uid " 1945 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 1946 } 1947 } 1948 1949 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 1950 throws SecurityException { 1951 if (parent) { 1952 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 1953 "call APIs on the parent profile"); 1954 } 1955 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 1956 return parent ? admin.getParentActiveAdmin() : admin; 1957 } 1958 /** 1959 * Find the admin for the component and userId bit of the uid, then check 1960 * the admin's uid matches the uid. 1961 */ 1962 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 1963 final int userId = UserHandle.getUserId(uid); 1964 final DevicePolicyData policy = getUserData(userId); 1965 ActiveAdmin admin = policy.mAdminMap.get(who); 1966 if (admin == null) { 1967 throw new SecurityException("No active admin " + who); 1968 } 1969 if (admin.getUid() != uid) { 1970 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 1971 } 1972 return admin; 1973 } 1974 1975 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 1976 int uid) { 1977 // Try to find an admin which can use reqPolicy 1978 final int userId = UserHandle.getUserId(uid); 1979 final DevicePolicyData policy = getUserData(userId); 1980 if (who != null) { 1981 ActiveAdmin admin = policy.mAdminMap.get(who); 1982 if (admin == null) { 1983 throw new SecurityException("No active admin " + who); 1984 } 1985 if (admin.getUid() != uid) { 1986 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 1987 } 1988 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 1989 return admin; 1990 } 1991 } else { 1992 for (ActiveAdmin admin : policy.mAdminList) { 1993 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 1994 userId)) { 1995 return admin; 1996 } 1997 } 1998 } 1999 2000 return null; 2001 } 2002 2003 @VisibleForTesting 2004 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 2005 int userId) { 2006 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 2007 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 2008 2009 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2010 return ownsDevice; 2011 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2012 // DO always has the PO power. 2013 return ownsDevice || ownsProfile; 2014 } else { 2015 return admin.info.usesPolicy(reqPolicy); 2016 } 2017 } 2018 2019 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 2020 sendAdminCommandLocked(admin, action, null); 2021 } 2022 2023 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 2024 sendAdminCommandLocked(admin, action, null, result); 2025 } 2026 2027 /** 2028 * Send an update to one specific admin, get notified when that admin returns a result. 2029 */ 2030 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2031 BroadcastReceiver result) { 2032 Intent intent = new Intent(action); 2033 intent.setComponent(admin.info.getComponent()); 2034 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 2035 intent.putExtra("expiration", admin.passwordExpirationDate); 2036 } 2037 if (adminExtras != null) { 2038 intent.putExtras(adminExtras); 2039 } 2040 if (result != null) { 2041 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 2042 null, result, mHandler, Activity.RESULT_OK, null, null); 2043 } else { 2044 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 2045 } 2046 } 2047 2048 /** 2049 * Send an update to all admins of a user that enforce a specified policy. 2050 */ 2051 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 2052 final DevicePolicyData policy = getUserData(userHandle); 2053 final int count = policy.mAdminList.size(); 2054 if (count > 0) { 2055 for (int i = 0; i < count; i++) { 2056 final ActiveAdmin admin = policy.mAdminList.get(i); 2057 if (admin.info.usesPolicy(reqPolicy)) { 2058 sendAdminCommandLocked(admin, action); 2059 } 2060 } 2061 } 2062 } 2063 2064 /** 2065 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2066 * enforce a specified policy. 2067 */ 2068 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2069 int userHandle) { 2070 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 2071 for (UserInfo ui : profiles) { 2072 int id = ui.id; 2073 sendAdminCommandLocked(action, reqPolicy, id); 2074 } 2075 } 2076 2077 /** 2078 * Sends a broadcast to each profile that share the password unlock with the given user id. 2079 */ 2080 private void sendAdminCommandForLockscreenPoliciesLocked( 2081 String action, int reqPolicy, int userHandle) { 2082 if (isSeparateProfileChallengeEnabled(userHandle)) { 2083 sendAdminCommandLocked(action, reqPolicy, userHandle); 2084 } else { 2085 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle); 2086 } 2087 } 2088 2089 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2090 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2091 if (admin != null) { 2092 getUserData(userHandle).mRemovingAdmins.add(adminReceiver); 2093 sendAdminCommandLocked(admin, 2094 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2095 new BroadcastReceiver() { 2096 @Override 2097 public void onReceive(Context context, Intent intent) { 2098 removeAdminArtifacts(adminReceiver, userHandle); 2099 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2100 } 2101 }); 2102 } 2103 } 2104 2105 2106 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2107 boolean throwForMissiongPermission) { 2108 if (!mHasFeature) { 2109 return null; 2110 } 2111 enforceFullCrossUsersPermission(userHandle); 2112 ActivityInfo ai = null; 2113 try { 2114 ai = mIPackageManager.getReceiverInfo(adminName, 2115 PackageManager.GET_META_DATA | 2116 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS | 2117 PackageManager.MATCH_DIRECT_BOOT_AWARE | 2118 PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle); 2119 } catch (RemoteException e) { 2120 // shouldn't happen. 2121 } 2122 if (ai == null) { 2123 throw new IllegalArgumentException("Unknown admin: " + adminName); 2124 } 2125 2126 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2127 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2128 + permission.BIND_DEVICE_ADMIN; 2129 Slog.w(LOG_TAG, message); 2130 if (throwForMissiongPermission && 2131 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2132 throw new IllegalArgumentException(message); 2133 } 2134 } 2135 2136 try { 2137 return new DeviceAdminInfo(mContext, ai); 2138 } catch (XmlPullParserException | IOException e) { 2139 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2140 e); 2141 return null; 2142 } 2143 } 2144 2145 private JournaledFile makeJournaledFile(int userHandle) { 2146 final String base = userHandle == UserHandle.USER_SYSTEM 2147 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 2148 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2149 DEVICE_POLICIES_XML).getAbsolutePath(); 2150 if (VERBOSE_LOG) { 2151 Log.v(LOG_TAG, "Opening " + base); 2152 } 2153 return new JournaledFile(new File(base), new File(base + ".tmp")); 2154 } 2155 2156 private void saveSettingsLocked(int userHandle) { 2157 DevicePolicyData policy = getUserData(userHandle); 2158 JournaledFile journal = makeJournaledFile(userHandle); 2159 FileOutputStream stream = null; 2160 try { 2161 stream = new FileOutputStream(journal.chooseForWrite(), false); 2162 XmlSerializer out = new FastXmlSerializer(); 2163 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2164 out.startDocument(null, true); 2165 2166 out.startTag(null, "policies"); 2167 if (policy.mRestrictionsProvider != null) { 2168 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2169 policy.mRestrictionsProvider.flattenToString()); 2170 } 2171 if (policy.mUserSetupComplete) { 2172 out.attribute(null, ATTR_SETUP_COMPLETE, 2173 Boolean.toString(true)); 2174 } 2175 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2176 out.attribute(null, ATTR_PROVISIONING_STATE, 2177 Integer.toString(policy.mUserProvisioningState)); 2178 } 2179 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2180 out.attribute(null, ATTR_PERMISSION_POLICY, 2181 Integer.toString(policy.mPermissionPolicy)); 2182 } 2183 if (policy.mDelegatedCertInstallerPackage != null) { 2184 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 2185 policy.mDelegatedCertInstallerPackage); 2186 } 2187 if (policy.mApplicationRestrictionsManagingPackage != null) { 2188 out.attribute(null, ATTR_APPLICATION_RESTRICTIONS_MANAGER, 2189 policy.mApplicationRestrictionsManagingPackage); 2190 } 2191 2192 final int N = policy.mAdminList.size(); 2193 for (int i=0; i<N; i++) { 2194 ActiveAdmin ap = policy.mAdminList.get(i); 2195 if (ap != null) { 2196 out.startTag(null, "admin"); 2197 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2198 ap.writeToXml(out); 2199 out.endTag(null, "admin"); 2200 } 2201 } 2202 2203 if (policy.mPasswordOwner >= 0) { 2204 out.startTag(null, "password-owner"); 2205 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2206 out.endTag(null, "password-owner"); 2207 } 2208 2209 if (policy.mFailedPasswordAttempts != 0) { 2210 out.startTag(null, "failed-password-attempts"); 2211 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2212 out.endTag(null, "failed-password-attempts"); 2213 } 2214 2215 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 2216 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 2217 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 2218 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 2219 out.startTag(null, "active-password"); 2220 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 2221 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 2222 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 2223 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 2224 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 2225 out.attribute(null, "numeric", Integer 2226 .toString(policy.mActivePasswordNumeric)); 2227 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 2228 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 2229 out.endTag(null, "active-password"); 2230 } 2231 2232 for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) { 2233 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2234 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i)); 2235 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2236 } 2237 2238 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2239 String component = policy.mLockTaskPackages.get(i); 2240 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2241 out.attribute(null, "name", component); 2242 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2243 } 2244 2245 if (policy.mStatusBarDisabled) { 2246 out.startTag(null, TAG_STATUS_BAR); 2247 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2248 out.endTag(null, TAG_STATUS_BAR); 2249 } 2250 2251 if (policy.doNotAskCredentialsOnBoot) { 2252 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2253 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2254 } 2255 2256 for (String id : policy.mAffiliationIds) { 2257 out.startTag(null, TAG_AFFILIATION_ID); 2258 out.attribute(null, "id", id); 2259 out.endTag(null, TAG_AFFILIATION_ID); 2260 } 2261 2262 if (policy.mAdminBroadcastPending) { 2263 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2264 out.attribute(null, ATTR_VALUE, 2265 Boolean.toString(policy.mAdminBroadcastPending)); 2266 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2267 } 2268 2269 if (policy.mInitBundle != null) { 2270 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 2271 policy.mInitBundle.saveToXml(out); 2272 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 2273 } 2274 2275 out.endTag(null, "policies"); 2276 2277 out.endDocument(); 2278 stream.flush(); 2279 FileUtils.sync(stream); 2280 stream.close(); 2281 journal.commit(); 2282 sendChangedNotification(userHandle); 2283 } catch (XmlPullParserException | IOException e) { 2284 Slog.w(LOG_TAG, "failed writing file", e); 2285 try { 2286 if (stream != null) { 2287 stream.close(); 2288 } 2289 } catch (IOException ex) { 2290 // Ignore 2291 } 2292 journal.rollback(); 2293 } 2294 } 2295 2296 private void sendChangedNotification(int userHandle) { 2297 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 2298 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2299 long ident = mInjector.binderClearCallingIdentity(); 2300 try { 2301 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 2302 } finally { 2303 mInjector.binderRestoreCallingIdentity(ident); 2304 } 2305 } 2306 2307 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 2308 JournaledFile journal = makeJournaledFile(userHandle); 2309 FileInputStream stream = null; 2310 File file = journal.chooseForRead(); 2311 try { 2312 stream = new FileInputStream(file); 2313 XmlPullParser parser = Xml.newPullParser(); 2314 parser.setInput(stream, StandardCharsets.UTF_8.name()); 2315 2316 int type; 2317 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2318 && type != XmlPullParser.START_TAG) { 2319 } 2320 String tag = parser.getName(); 2321 if (!"policies".equals(tag)) { 2322 throw new XmlPullParserException( 2323 "Settings do not start with policies tag: found " + tag); 2324 } 2325 2326 // Extract the permission provider component name if available 2327 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 2328 if (permissionProvider != null) { 2329 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 2330 } 2331 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 2332 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 2333 policy.mUserSetupComplete = true; 2334 } 2335 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 2336 if (!TextUtils.isEmpty(provisioningState)) { 2337 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 2338 } 2339 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 2340 if (!TextUtils.isEmpty(permissionPolicy)) { 2341 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 2342 } 2343 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 2344 ATTR_DELEGATED_CERT_INSTALLER); 2345 policy.mApplicationRestrictionsManagingPackage = parser.getAttributeValue(null, 2346 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 2347 2348 type = parser.next(); 2349 int outerDepth = parser.getDepth(); 2350 policy.mLockTaskPackages.clear(); 2351 policy.mAdminList.clear(); 2352 policy.mAdminMap.clear(); 2353 policy.mAffiliationIds.clear(); 2354 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2355 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2356 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2357 continue; 2358 } 2359 tag = parser.getName(); 2360 if ("admin".equals(tag)) { 2361 String name = parser.getAttributeValue(null, "name"); 2362 try { 2363 DeviceAdminInfo dai = findAdmin( 2364 ComponentName.unflattenFromString(name), userHandle, 2365 /* throwForMissionPermission= */ false); 2366 if (VERBOSE_LOG 2367 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 2368 != userHandle)) { 2369 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 2370 + dai.getActivityInfo().applicationInfo.uid + " for user " 2371 + userHandle); 2372 } 2373 if (dai != null) { 2374 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 2375 ap.readFromXml(parser); 2376 policy.mAdminMap.put(ap.info.getComponent(), ap); 2377 } 2378 } catch (RuntimeException e) { 2379 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 2380 } 2381 } else if ("failed-password-attempts".equals(tag)) { 2382 policy.mFailedPasswordAttempts = Integer.parseInt( 2383 parser.getAttributeValue(null, "value")); 2384 } else if ("password-owner".equals(tag)) { 2385 policy.mPasswordOwner = Integer.parseInt( 2386 parser.getAttributeValue(null, "value")); 2387 } else if ("active-password".equals(tag)) { 2388 policy.mActivePasswordQuality = Integer.parseInt( 2389 parser.getAttributeValue(null, "quality")); 2390 policy.mActivePasswordLength = Integer.parseInt( 2391 parser.getAttributeValue(null, "length")); 2392 policy.mActivePasswordUpperCase = Integer.parseInt( 2393 parser.getAttributeValue(null, "uppercase")); 2394 policy.mActivePasswordLowerCase = Integer.parseInt( 2395 parser.getAttributeValue(null, "lowercase")); 2396 policy.mActivePasswordLetters = Integer.parseInt( 2397 parser.getAttributeValue(null, "letters")); 2398 policy.mActivePasswordNumeric = Integer.parseInt( 2399 parser.getAttributeValue(null, "numeric")); 2400 policy.mActivePasswordSymbols = Integer.parseInt( 2401 parser.getAttributeValue(null, "symbols")); 2402 policy.mActivePasswordNonLetter = Integer.parseInt( 2403 parser.getAttributeValue(null, "nonletter")); 2404 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) { 2405 policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME)); 2406 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2407 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2408 } else if (TAG_STATUS_BAR.equals(tag)) { 2409 policy.mStatusBarDisabled = Boolean.parseBoolean( 2410 parser.getAttributeValue(null, ATTR_DISABLED)); 2411 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2412 policy.doNotAskCredentialsOnBoot = true; 2413 } else if (TAG_AFFILIATION_ID.equals(tag)) { 2414 policy.mAffiliationIds.add(parser.getAttributeValue(null, "id")); 2415 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 2416 String pending = parser.getAttributeValue(null, ATTR_VALUE); 2417 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 2418 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 2419 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 2420 } else { 2421 Slog.w(LOG_TAG, "Unknown tag: " + tag); 2422 XmlUtils.skipCurrentTag(parser); 2423 } 2424 } 2425 } catch (FileNotFoundException e) { 2426 // Don't be noisy, this is normal if we haven't defined any policies. 2427 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 2428 | IndexOutOfBoundsException e) { 2429 Slog.w(LOG_TAG, "failed parsing " + file, e); 2430 } 2431 try { 2432 if (stream != null) { 2433 stream.close(); 2434 } 2435 } catch (IOException e) { 2436 // Ignore 2437 } 2438 2439 // Generate a list of admins from the admin map 2440 policy.mAdminList.addAll(policy.mAdminMap.values()); 2441 2442 // Validate that what we stored for the password quality matches 2443 // sufficiently what is currently set. Note that this is only 2444 // a sanity check in case the two get out of sync; this should 2445 // never normally happen. 2446 final long identity = mInjector.binderClearCallingIdentity(); 2447 try { 2448 int actualPasswordQuality = mLockPatternUtils.getActivePasswordQuality(userHandle); 2449 if (actualPasswordQuality < policy.mActivePasswordQuality) { 2450 Slog.w(LOG_TAG, "Active password quality 0x" 2451 + Integer.toHexString(policy.mActivePasswordQuality) 2452 + " does not match actual quality 0x" 2453 + Integer.toHexString(actualPasswordQuality)); 2454 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2455 policy.mActivePasswordLength = 0; 2456 policy.mActivePasswordUpperCase = 0; 2457 policy.mActivePasswordLowerCase = 0; 2458 policy.mActivePasswordLetters = 0; 2459 policy.mActivePasswordNumeric = 0; 2460 policy.mActivePasswordSymbols = 0; 2461 policy.mActivePasswordNonLetter = 0; 2462 } 2463 } finally { 2464 mInjector.binderRestoreCallingIdentity(identity); 2465 } 2466 2467 validatePasswordOwnerLocked(policy); 2468 updateMaximumTimeToLockLocked(userHandle); 2469 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2470 if (policy.mStatusBarDisabled) { 2471 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2472 } 2473 } 2474 2475 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2476 long ident = mInjector.binderClearCallingIdentity(); 2477 try { 2478 mInjector.getIActivityManager() 2479 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2480 } catch (RemoteException e) { 2481 // Not gonna happen. 2482 } finally { 2483 mInjector.binderRestoreCallingIdentity(ident); 2484 } 2485 } 2486 2487 private void updateDeviceOwnerLocked() { 2488 long ident = mInjector.binderClearCallingIdentity(); 2489 try { 2490 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2491 // user id and also protect all other DAs too. 2492 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2493 if (deviceOwnerComponent != null) { 2494 mInjector.getIActivityManager() 2495 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2496 } 2497 } catch (RemoteException e) { 2498 // Not gonna happen. 2499 } finally { 2500 mInjector.binderRestoreCallingIdentity(ident); 2501 } 2502 } 2503 2504 static void validateQualityConstant(int quality) { 2505 switch (quality) { 2506 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2507 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2508 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2509 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2510 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2511 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2512 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2513 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2514 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 2515 return; 2516 } 2517 throw new IllegalArgumentException("Invalid quality constant: 0x" 2518 + Integer.toHexString(quality)); 2519 } 2520 2521 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2522 if (policy.mPasswordOwner >= 0) { 2523 boolean haveOwner = false; 2524 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2525 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2526 haveOwner = true; 2527 break; 2528 } 2529 } 2530 if (!haveOwner) { 2531 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2532 + " no longer active; disabling"); 2533 policy.mPasswordOwner = -1; 2534 } 2535 } 2536 } 2537 2538 @VisibleForTesting 2539 void systemReady(int phase) { 2540 if (!mHasFeature) { 2541 return; 2542 } 2543 switch (phase) { 2544 case SystemService.PHASE_LOCK_SETTINGS_READY: 2545 onLockSettingsReady(); 2546 break; 2547 case SystemService.PHASE_BOOT_COMPLETED: 2548 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2549 break; 2550 } 2551 } 2552 2553 private void onLockSettingsReady() { 2554 getUserData(UserHandle.USER_SYSTEM); 2555 loadOwners(); 2556 cleanUpOldUsers(); 2557 2558 onStartUser(UserHandle.USER_SYSTEM); 2559 2560 // Register an observer for watching for user setup complete. 2561 new SetupContentObserver(mHandler).register(); 2562 // Initialize the user setup state, to handle the upgrade case. 2563 updateUserSetupComplete(); 2564 2565 List<String> packageList; 2566 synchronized (this) { 2567 packageList = getKeepUninstalledPackagesLocked(); 2568 } 2569 if (packageList != null) { 2570 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 2571 } 2572 2573 synchronized (this) { 2574 // push the force-ephemeral-users policy to the user manager. 2575 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 2576 if (deviceOwner != null) { 2577 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 2578 } 2579 } 2580 } 2581 2582 private void ensureDeviceOwnerUserStarted() { 2583 final int userId; 2584 synchronized (this) { 2585 if (!mOwners.hasDeviceOwner()) { 2586 return; 2587 } 2588 userId = mOwners.getDeviceOwnerUserId(); 2589 } 2590 if (VERBOSE_LOG) { 2591 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2592 } 2593 if (userId != UserHandle.USER_SYSTEM) { 2594 try { 2595 mInjector.getIActivityManager().startUserInBackground(userId); 2596 2597 // STOPSHIP Prevent the DO user from being killed. 2598 2599 } catch (RemoteException e) { 2600 Slog.w(LOG_TAG, "Exception starting user", e); 2601 } 2602 } 2603 } 2604 2605 private void onStartUser(int userId) { 2606 updateScreenCaptureDisabledInWindowManager(userId, 2607 getScreenCaptureDisabled(null, userId)); 2608 pushUserRestrictions(userId); 2609 } 2610 2611 private void cleanUpOldUsers() { 2612 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2613 // before reboot 2614 Set<Integer> usersWithProfileOwners; 2615 Set<Integer> usersWithData; 2616 synchronized(this) { 2617 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2618 usersWithData = new ArraySet<>(); 2619 for (int i = 0; i < mUserData.size(); i++) { 2620 usersWithData.add(mUserData.keyAt(i)); 2621 } 2622 } 2623 List<UserInfo> allUsers = mUserManager.getUsers(); 2624 2625 Set<Integer> deletedUsers = new ArraySet<>(); 2626 deletedUsers.addAll(usersWithProfileOwners); 2627 deletedUsers.addAll(usersWithData); 2628 for (UserInfo userInfo : allUsers) { 2629 deletedUsers.remove(userInfo.id); 2630 } 2631 for (Integer userId : deletedUsers) { 2632 removeUserData(userId); 2633 } 2634 } 2635 2636 private void handlePasswordExpirationNotification(int userHandle) { 2637 synchronized (this) { 2638 final long now = System.currentTimeMillis(); 2639 2640 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 2641 userHandle, /* parent */ false); 2642 final int N = admins.size(); 2643 for (int i = 0; i < N; i++) { 2644 ActiveAdmin admin = admins.get(i); 2645 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 2646 && admin.passwordExpirationTimeout > 0L 2647 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2648 && admin.passwordExpirationDate > 0L) { 2649 sendAdminCommandLocked(admin, 2650 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2651 } 2652 } 2653 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 2654 } 2655 } 2656 2657 private class MonitoringCertNotificationTask extends AsyncTask<Integer, Void, Void> { 2658 @Override 2659 protected Void doInBackground(Integer... params) { 2660 int userHandle = params[0]; 2661 2662 if (userHandle == UserHandle.USER_ALL) { 2663 for (UserInfo userInfo : mUserManager.getUsers()) { 2664 manageNotification(userInfo.getUserHandle()); 2665 } 2666 } else { 2667 manageNotification(UserHandle.of(userHandle)); 2668 } 2669 return null; 2670 } 2671 2672 private void manageNotification(UserHandle userHandle) { 2673 if (!mUserManager.isUserRunning(userHandle)) { 2674 return; 2675 } 2676 2677 // Call out to KeyChain to check for CAs which are waiting for approval. 2678 final List<String> pendingCertificates; 2679 try { 2680 pendingCertificates = getInstalledCaCertificates(userHandle); 2681 } catch (RemoteException | RuntimeException e) { 2682 Log.e(LOG_TAG, "Could not retrieve certificates from KeyChain service", e); 2683 return; 2684 } 2685 2686 synchronized (DevicePolicyManagerService.this) { 2687 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 2688 2689 // Remove deleted certificates. Flush xml if necessary. 2690 if (policy.mAcceptedCaCertificates.retainAll(pendingCertificates)) { 2691 saveSettingsLocked(userHandle.getIdentifier()); 2692 } 2693 // Trim to approved certificates. 2694 pendingCertificates.removeAll(policy.mAcceptedCaCertificates); 2695 } 2696 2697 if (pendingCertificates.isEmpty()) { 2698 mInjector.getNotificationManager().cancelAsUser( 2699 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2700 return; 2701 } 2702 2703 // Build and show a warning notification 2704 int smallIconId; 2705 String contentText; 2706 // TODO Why does it use the DO name? The cert APIs are all for PO. b/25772443 2707 final String ownerName = getDeviceOwnerName(); 2708 if (isManagedProfile(userHandle.getIdentifier())) { 2709 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_administrator); 2710 smallIconId = R.drawable.stat_sys_certificate_info; 2711 } else if (ownerName != null) { 2712 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, ownerName); 2713 smallIconId = R.drawable.stat_sys_certificate_info; 2714 } else { 2715 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2716 smallIconId = android.R.drawable.stat_sys_warning; 2717 } 2718 2719 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2720 dialogIntent.setFlags( 2721 Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2722 dialogIntent.setPackage("com.android.settings"); 2723 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2724 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, userHandle); 2725 2726 final Context userContext; 2727 try { 2728 final String packageName = mContext.getPackageName(); 2729 userContext = mContext.createPackageContextAsUser(packageName, 0, userHandle); 2730 } catch (PackageManager.NameNotFoundException e) { 2731 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2732 return; 2733 } 2734 final Notification noti = new Notification.Builder(userContext) 2735 .setSmallIcon(smallIconId) 2736 .setContentTitle(mContext.getString(R.string.ssl_ca_cert_warning)) 2737 .setContentText(contentText) 2738 .setContentIntent(notifyIntent) 2739 .setPriority(Notification.PRIORITY_HIGH) 2740 .setShowWhen(false) 2741 .setColor(mContext.getColor( 2742 com.android.internal.R.color.system_notification_accent_color)) 2743 .build(); 2744 2745 mInjector.getNotificationManager().notifyAsUser( 2746 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2747 } 2748 2749 private List<String> getInstalledCaCertificates(UserHandle userHandle) 2750 throws RemoteException, RuntimeException { 2751 KeyChainConnection conn = null; 2752 try { 2753 conn = KeyChain.bindAsUser(mContext, userHandle); 2754 List<ParcelableString> aliases = conn.getService().getUserCaAliases().getList(); 2755 List<String> result = new ArrayList<>(aliases.size()); 2756 for (int i = 0; i < aliases.size(); i++) { 2757 result.add(aliases.get(i).string); 2758 } 2759 return result; 2760 } catch (InterruptedException e) { 2761 Thread.currentThread().interrupt(); 2762 return null; 2763 } catch (AssertionError e) { 2764 throw new RuntimeException(e); 2765 } finally { 2766 if (conn != null) { 2767 conn.close(); 2768 } 2769 } 2770 } 2771 } 2772 2773 /** 2774 * @param adminReceiver The admin to add 2775 * @param refreshing true = update an active admin, no error 2776 */ 2777 @Override 2778 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2779 if (!mHasFeature) { 2780 return; 2781 } 2782 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2783 } 2784 2785 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2786 Bundle onEnableData) { 2787 mContext.enforceCallingOrSelfPermission( 2788 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2789 enforceFullCrossUsersPermission(userHandle); 2790 2791 DevicePolicyData policy = getUserData(userHandle); 2792 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 2793 /* throwForMissionPermission= */ true); 2794 if (info == null) { 2795 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2796 } 2797 if (!info.getActivityInfo().applicationInfo.isInternal()) { 2798 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 2799 + adminReceiver); 2800 } 2801 synchronized (this) { 2802 long ident = mInjector.binderClearCallingIdentity(); 2803 try { 2804 if (!refreshing 2805 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 2806 throw new IllegalArgumentException("Admin is already added"); 2807 } 2808 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 2809 policy.mAdminMap.put(adminReceiver, newAdmin); 2810 int replaceIndex = -1; 2811 final int N = policy.mAdminList.size(); 2812 for (int i=0; i < N; i++) { 2813 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2814 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2815 replaceIndex = i; 2816 break; 2817 } 2818 } 2819 if (replaceIndex == -1) { 2820 policy.mAdminList.add(newAdmin); 2821 enableIfNecessary(info.getPackageName(), userHandle); 2822 } else { 2823 policy.mAdminList.set(replaceIndex, newAdmin); 2824 } 2825 saveSettingsLocked(userHandle); 2826 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2827 onEnableData, null); 2828 } finally { 2829 mInjector.binderRestoreCallingIdentity(ident); 2830 } 2831 } 2832 } 2833 2834 @Override 2835 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2836 if (!mHasFeature) { 2837 return false; 2838 } 2839 enforceFullCrossUsersPermission(userHandle); 2840 synchronized (this) { 2841 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2842 } 2843 } 2844 2845 @Override 2846 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2847 if (!mHasFeature) { 2848 return false; 2849 } 2850 enforceFullCrossUsersPermission(userHandle); 2851 synchronized (this) { 2852 DevicePolicyData policyData = getUserData(userHandle); 2853 return policyData.mRemovingAdmins.contains(adminReceiver); 2854 } 2855 } 2856 2857 @Override 2858 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 2859 if (!mHasFeature) { 2860 return false; 2861 } 2862 enforceFullCrossUsersPermission(userHandle); 2863 synchronized (this) { 2864 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2865 if (administrator == null) { 2866 throw new SecurityException("No active admin " + adminReceiver); 2867 } 2868 return administrator.info.usesPolicy(policyId); 2869 } 2870 } 2871 2872 @Override 2873 @SuppressWarnings("unchecked") 2874 public List<ComponentName> getActiveAdmins(int userHandle) { 2875 if (!mHasFeature) { 2876 return Collections.EMPTY_LIST; 2877 } 2878 2879 enforceFullCrossUsersPermission(userHandle); 2880 synchronized (this) { 2881 DevicePolicyData policy = getUserData(userHandle); 2882 final int N = policy.mAdminList.size(); 2883 if (N <= 0) { 2884 return null; 2885 } 2886 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 2887 for (int i=0; i<N; i++) { 2888 res.add(policy.mAdminList.get(i).info.getComponent()); 2889 } 2890 return res; 2891 } 2892 } 2893 2894 @Override 2895 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 2896 if (!mHasFeature) { 2897 return false; 2898 } 2899 enforceFullCrossUsersPermission(userHandle); 2900 synchronized (this) { 2901 DevicePolicyData policy = getUserData(userHandle); 2902 final int N = policy.mAdminList.size(); 2903 for (int i=0; i<N; i++) { 2904 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 2905 return true; 2906 } 2907 } 2908 return false; 2909 } 2910 } 2911 2912 @Override 2913 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 2914 if (!mHasFeature) { 2915 return; 2916 } 2917 enforceFullCrossUsersPermission(userHandle); 2918 enforceUserUnlocked(userHandle); 2919 synchronized (this) { 2920 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2921 if (admin == null) { 2922 return; 2923 } 2924 // Active device/profile owners must remain active admins. 2925 if (isDeviceOwner(adminReceiver, userHandle) 2926 || isProfileOwner(adminReceiver, userHandle)) { 2927 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 2928 adminReceiver); 2929 return; 2930 } 2931 if (admin.getUid() != mInjector.binderGetCallingUid()) { 2932 mContext.enforceCallingOrSelfPermission( 2933 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2934 } 2935 long ident = mInjector.binderClearCallingIdentity(); 2936 try { 2937 removeActiveAdminLocked(adminReceiver, userHandle); 2938 } finally { 2939 mInjector.binderRestoreCallingIdentity(ident); 2940 } 2941 } 2942 } 2943 2944 @Override 2945 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 2946 ComponentName profileOwner = getProfileOwner(userHandle); 2947 // Profile challenge is supported on N or newer release. 2948 return profileOwner != null && 2949 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 2950 } 2951 2952 @Override 2953 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 2954 if (!mHasFeature) { 2955 return; 2956 } 2957 Preconditions.checkNotNull(who, "ComponentName is null"); 2958 validateQualityConstant(quality); 2959 2960 synchronized (this) { 2961 ActiveAdmin ap = getActiveAdminForCallerLocked( 2962 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 2963 if (ap.passwordQuality != quality) { 2964 ap.passwordQuality = quality; 2965 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 2966 } 2967 } 2968 } 2969 2970 @Override 2971 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 2972 if (!mHasFeature) { 2973 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2974 } 2975 enforceFullCrossUsersPermission(userHandle); 2976 synchronized (this) { 2977 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2978 2979 if (who != null) { 2980 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 2981 return admin != null ? admin.passwordQuality : mode; 2982 } 2983 2984 // Return the strictest policy across all participating admins. 2985 List<ActiveAdmin> admins = 2986 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 2987 final int N = admins.size(); 2988 for (int i = 0; i < N; i++) { 2989 ActiveAdmin admin = admins.get(i); 2990 if (mode < admin.passwordQuality) { 2991 mode = admin.passwordQuality; 2992 } 2993 } 2994 return mode; 2995 } 2996 } 2997 2998 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 2999 int userHandle, boolean parent) { 3000 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 3001 // If this user has a separate challenge, only return its restrictions. 3002 return getUserDataUnchecked(userHandle).mAdminList; 3003 } else { 3004 // Return all admins for this user and the profiles that are visible from this 3005 // user that do not use a separate work challenge. 3006 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 3007 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3008 DevicePolicyData policy = getUserData(userInfo.id); 3009 if (!userInfo.isManagedProfile()) { 3010 admins.addAll(policy.mAdminList); 3011 } else { 3012 // For managed profiles, we always include the policies set on the parent 3013 // profile. Additionally, we include the ones set on the managed profile 3014 // if no separate challenge is in place. 3015 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 3016 final int N = policy.mAdminList.size(); 3017 for (int i = 0; i < N; i++) { 3018 ActiveAdmin admin = policy.mAdminList.get(i); 3019 if (admin.hasParentActiveAdmin()) { 3020 admins.add(admin.getParentActiveAdmin()); 3021 } 3022 if (!hasSeparateChallenge) { 3023 admins.add(admin); 3024 } 3025 } 3026 } 3027 } 3028 return admins; 3029 } 3030 } 3031 3032 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 3033 long ident = mInjector.binderClearCallingIdentity(); 3034 try { 3035 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 3036 } finally { 3037 mInjector.binderRestoreCallingIdentity(ident); 3038 } 3039 } 3040 3041 @Override 3042 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 3043 if (!mHasFeature) { 3044 return; 3045 } 3046 Preconditions.checkNotNull(who, "ComponentName is null"); 3047 synchronized (this) { 3048 ActiveAdmin ap = getActiveAdminForCallerLocked( 3049 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3050 if (ap.minimumPasswordLength != length) { 3051 ap.minimumPasswordLength = length; 3052 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3053 } 3054 } 3055 } 3056 3057 @Override 3058 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 3059 if (!mHasFeature) { 3060 return 0; 3061 } 3062 enforceFullCrossUsersPermission(userHandle); 3063 synchronized (this) { 3064 int length = 0; 3065 3066 if (who != null) { 3067 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3068 return admin != null ? admin.minimumPasswordLength : length; 3069 } 3070 3071 // Return the strictest policy across all participating admins. 3072 List<ActiveAdmin> admins = 3073 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3074 final int N = admins.size(); 3075 for (int i = 0; i < N; i++) { 3076 ActiveAdmin admin = admins.get(i); 3077 if (length < admin.minimumPasswordLength) { 3078 length = admin.minimumPasswordLength; 3079 } 3080 } 3081 return length; 3082 } 3083 } 3084 3085 @Override 3086 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 3087 if (!mHasFeature) { 3088 return; 3089 } 3090 Preconditions.checkNotNull(who, "ComponentName is null"); 3091 synchronized (this) { 3092 ActiveAdmin ap = getActiveAdminForCallerLocked( 3093 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3094 if (ap.passwordHistoryLength != length) { 3095 ap.passwordHistoryLength = length; 3096 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3097 } 3098 } 3099 } 3100 3101 @Override 3102 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 3103 if (!mHasFeature) { 3104 return 0; 3105 } 3106 enforceFullCrossUsersPermission(userHandle); 3107 synchronized (this) { 3108 int length = 0; 3109 3110 if (who != null) { 3111 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3112 return admin != null ? admin.passwordHistoryLength : length; 3113 } 3114 3115 // Return the strictest policy across all participating admins. 3116 List<ActiveAdmin> admins = 3117 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3118 final int N = admins.size(); 3119 for (int i = 0; i < N; i++) { 3120 ActiveAdmin admin = admins.get(i); 3121 if (length < admin.passwordHistoryLength) { 3122 length = admin.passwordHistoryLength; 3123 } 3124 } 3125 3126 return length; 3127 } 3128 } 3129 3130 @Override 3131 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 3132 if (!mHasFeature) { 3133 return; 3134 } 3135 Preconditions.checkNotNull(who, "ComponentName is null"); 3136 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 3137 final int userHandle = mInjector.userHandleGetCallingUserId(); 3138 synchronized (this) { 3139 ActiveAdmin ap = getActiveAdminForCallerLocked( 3140 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 3141 // Calling this API automatically bumps the expiration date 3142 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3143 ap.passwordExpirationDate = expiration; 3144 ap.passwordExpirationTimeout = timeout; 3145 if (timeout > 0L) { 3146 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 3147 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 3148 .format(new Date(expiration))); 3149 } 3150 saveSettingsLocked(userHandle); 3151 3152 // in case this is the first one, set the alarm on the appropriate user. 3153 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 3154 } 3155 } 3156 3157 /** 3158 * Return a single admin's expiration cycle time, or the min of all cycle times. 3159 * Returns 0 if not configured. 3160 */ 3161 @Override 3162 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 3163 if (!mHasFeature) { 3164 return 0L; 3165 } 3166 enforceFullCrossUsersPermission(userHandle); 3167 synchronized (this) { 3168 long timeout = 0L; 3169 3170 if (who != null) { 3171 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3172 return admin != null ? admin.passwordExpirationTimeout : timeout; 3173 } 3174 3175 // Return the strictest policy across all participating admins. 3176 List<ActiveAdmin> admins = 3177 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3178 final int N = admins.size(); 3179 for (int i = 0; i < N; i++) { 3180 ActiveAdmin admin = admins.get(i); 3181 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 3182 && timeout > admin.passwordExpirationTimeout)) { 3183 timeout = admin.passwordExpirationTimeout; 3184 } 3185 } 3186 return timeout; 3187 } 3188 } 3189 3190 @Override 3191 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3192 final int userId = UserHandle.getCallingUserId(); 3193 List<String> changedProviders = null; 3194 3195 synchronized (this) { 3196 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3197 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3198 if (activeAdmin.crossProfileWidgetProviders == null) { 3199 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 3200 } 3201 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3202 if (!providers.contains(packageName)) { 3203 providers.add(packageName); 3204 changedProviders = new ArrayList<>(providers); 3205 saveSettingsLocked(userId); 3206 } 3207 } 3208 3209 if (changedProviders != null) { 3210 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3211 return true; 3212 } 3213 3214 return false; 3215 } 3216 3217 @Override 3218 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3219 final int userId = UserHandle.getCallingUserId(); 3220 List<String> changedProviders = null; 3221 3222 synchronized (this) { 3223 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3224 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3225 if (activeAdmin.crossProfileWidgetProviders == null) { 3226 return false; 3227 } 3228 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3229 if (providers.remove(packageName)) { 3230 changedProviders = new ArrayList<>(providers); 3231 saveSettingsLocked(userId); 3232 } 3233 } 3234 3235 if (changedProviders != null) { 3236 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3237 return true; 3238 } 3239 3240 return false; 3241 } 3242 3243 @Override 3244 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 3245 synchronized (this) { 3246 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3247 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3248 if (activeAdmin.crossProfileWidgetProviders == null 3249 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3250 return null; 3251 } 3252 if (mInjector.binderIsCallingUidMyUid()) { 3253 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 3254 } else { 3255 return activeAdmin.crossProfileWidgetProviders; 3256 } 3257 } 3258 } 3259 3260 /** 3261 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 3262 * Returns 0 if not configured. 3263 */ 3264 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 3265 long timeout = 0L; 3266 3267 if (who != null) { 3268 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3269 return admin != null ? admin.passwordExpirationDate : timeout; 3270 } 3271 3272 // Return the strictest policy across all participating admins. 3273 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3274 final int N = admins.size(); 3275 for (int i = 0; i < N; i++) { 3276 ActiveAdmin admin = admins.get(i); 3277 if (timeout == 0L || (admin.passwordExpirationDate != 0 3278 && timeout > admin.passwordExpirationDate)) { 3279 timeout = admin.passwordExpirationDate; 3280 } 3281 } 3282 return timeout; 3283 } 3284 3285 @Override 3286 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 3287 if (!mHasFeature) { 3288 return 0L; 3289 } 3290 enforceFullCrossUsersPermission(userHandle); 3291 synchronized (this) { 3292 return getPasswordExpirationLocked(who, userHandle, parent); 3293 } 3294 } 3295 3296 @Override 3297 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 3298 if (!mHasFeature) { 3299 return; 3300 } 3301 Preconditions.checkNotNull(who, "ComponentName is null"); 3302 synchronized (this) { 3303 ActiveAdmin ap = getActiveAdminForCallerLocked( 3304 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3305 if (ap.minimumPasswordUpperCase != length) { 3306 ap.minimumPasswordUpperCase = length; 3307 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3308 } 3309 } 3310 } 3311 3312 @Override 3313 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 3314 if (!mHasFeature) { 3315 return 0; 3316 } 3317 enforceFullCrossUsersPermission(userHandle); 3318 synchronized (this) { 3319 int length = 0; 3320 3321 if (who != null) { 3322 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3323 return admin != null ? admin.minimumPasswordUpperCase : length; 3324 } 3325 3326 // Return the strictest policy across all participating admins. 3327 List<ActiveAdmin> admins = 3328 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3329 final int N = admins.size(); 3330 for (int i = 0; i < N; i++) { 3331 ActiveAdmin admin = admins.get(i); 3332 if (length < admin.minimumPasswordUpperCase) { 3333 length = admin.minimumPasswordUpperCase; 3334 } 3335 } 3336 return length; 3337 } 3338 } 3339 3340 @Override 3341 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 3342 Preconditions.checkNotNull(who, "ComponentName is null"); 3343 synchronized (this) { 3344 ActiveAdmin ap = getActiveAdminForCallerLocked( 3345 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3346 if (ap.minimumPasswordLowerCase != length) { 3347 ap.minimumPasswordLowerCase = length; 3348 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3349 } 3350 } 3351 } 3352 3353 @Override 3354 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 3355 if (!mHasFeature) { 3356 return 0; 3357 } 3358 enforceFullCrossUsersPermission(userHandle); 3359 synchronized (this) { 3360 int length = 0; 3361 3362 if (who != null) { 3363 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3364 return admin != null ? admin.minimumPasswordLowerCase : length; 3365 } 3366 3367 // Return the strictest policy across all participating admins. 3368 List<ActiveAdmin> admins = 3369 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3370 final int N = admins.size(); 3371 for (int i = 0; i < N; i++) { 3372 ActiveAdmin admin = admins.get(i); 3373 if (length < admin.minimumPasswordLowerCase) { 3374 length = admin.minimumPasswordLowerCase; 3375 } 3376 } 3377 return length; 3378 } 3379 } 3380 3381 @Override 3382 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 3383 if (!mHasFeature) { 3384 return; 3385 } 3386 Preconditions.checkNotNull(who, "ComponentName is null"); 3387 synchronized (this) { 3388 ActiveAdmin ap = getActiveAdminForCallerLocked( 3389 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3390 if (ap.minimumPasswordLetters != length) { 3391 ap.minimumPasswordLetters = length; 3392 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3393 } 3394 } 3395 } 3396 3397 @Override 3398 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 3399 if (!mHasFeature) { 3400 return 0; 3401 } 3402 enforceFullCrossUsersPermission(userHandle); 3403 synchronized (this) { 3404 int length = 0; 3405 3406 if (who != null) { 3407 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3408 return admin != null ? admin.minimumPasswordLetters : length; 3409 } 3410 3411 // Return the strictest policy across all participating admins. 3412 List<ActiveAdmin> admins = 3413 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3414 final int N = admins.size(); 3415 for (int i = 0; i < N; i++) { 3416 ActiveAdmin admin = admins.get(i); 3417 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3418 continue; 3419 } 3420 if (length < admin.minimumPasswordLetters) { 3421 length = admin.minimumPasswordLetters; 3422 } 3423 } 3424 return length; 3425 } 3426 } 3427 3428 @Override 3429 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 3430 if (!mHasFeature) { 3431 return; 3432 } 3433 Preconditions.checkNotNull(who, "ComponentName is null"); 3434 synchronized (this) { 3435 ActiveAdmin ap = getActiveAdminForCallerLocked( 3436 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3437 if (ap.minimumPasswordNumeric != length) { 3438 ap.minimumPasswordNumeric = length; 3439 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3440 } 3441 } 3442 } 3443 3444 @Override 3445 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 3446 if (!mHasFeature) { 3447 return 0; 3448 } 3449 enforceFullCrossUsersPermission(userHandle); 3450 synchronized (this) { 3451 int length = 0; 3452 3453 if (who != null) { 3454 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3455 return admin != null ? admin.minimumPasswordNumeric : length; 3456 } 3457 3458 // Return the strictest policy across all participating admins. 3459 List<ActiveAdmin> admins = 3460 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3461 final int N = admins.size(); 3462 for (int i = 0; i < N; i++) { 3463 ActiveAdmin admin = admins.get(i); 3464 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3465 continue; 3466 } 3467 if (length < admin.minimumPasswordNumeric) { 3468 length = admin.minimumPasswordNumeric; 3469 } 3470 } 3471 return length; 3472 } 3473 } 3474 3475 @Override 3476 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 3477 if (!mHasFeature) { 3478 return; 3479 } 3480 Preconditions.checkNotNull(who, "ComponentName is null"); 3481 synchronized (this) { 3482 ActiveAdmin ap = getActiveAdminForCallerLocked( 3483 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3484 if (ap.minimumPasswordSymbols != length) { 3485 ap.minimumPasswordSymbols = length; 3486 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3487 } 3488 } 3489 } 3490 3491 @Override 3492 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 3493 if (!mHasFeature) { 3494 return 0; 3495 } 3496 enforceFullCrossUsersPermission(userHandle); 3497 synchronized (this) { 3498 int length = 0; 3499 3500 if (who != null) { 3501 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3502 return admin != null ? admin.minimumPasswordSymbols : length; 3503 } 3504 3505 // Return the strictest policy across all participating admins. 3506 List<ActiveAdmin> admins = 3507 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3508 final int N = admins.size(); 3509 for (int i = 0; i < N; i++) { 3510 ActiveAdmin admin = admins.get(i); 3511 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3512 continue; 3513 } 3514 if (length < admin.minimumPasswordSymbols) { 3515 length = admin.minimumPasswordSymbols; 3516 } 3517 } 3518 return length; 3519 } 3520 } 3521 3522 @Override 3523 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 3524 if (!mHasFeature) { 3525 return; 3526 } 3527 Preconditions.checkNotNull(who, "ComponentName is null"); 3528 synchronized (this) { 3529 ActiveAdmin ap = getActiveAdminForCallerLocked( 3530 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3531 if (ap.minimumPasswordNonLetter != length) { 3532 ap.minimumPasswordNonLetter = length; 3533 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3534 } 3535 } 3536 } 3537 3538 @Override 3539 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 3540 if (!mHasFeature) { 3541 return 0; 3542 } 3543 enforceFullCrossUsersPermission(userHandle); 3544 synchronized (this) { 3545 int length = 0; 3546 3547 if (who != null) { 3548 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3549 return admin != null ? admin.minimumPasswordNonLetter : length; 3550 } 3551 3552 // Return the strictest policy across all participating admins. 3553 List<ActiveAdmin> admins = 3554 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3555 final int N = admins.size(); 3556 for (int i = 0; i < N; i++) { 3557 ActiveAdmin admin = admins.get(i); 3558 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3559 continue; 3560 } 3561 if (length < admin.minimumPasswordNonLetter) { 3562 length = admin.minimumPasswordNonLetter; 3563 } 3564 } 3565 return length; 3566 } 3567 } 3568 3569 @Override 3570 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 3571 if (!mHasFeature) { 3572 return true; 3573 } 3574 enforceFullCrossUsersPermission(userHandle); 3575 3576 synchronized (this) { 3577 // This API can only be called by an active device admin, 3578 // so try to retrieve it to check that the caller is one. 3579 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3580 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3581 return isActivePasswordSufficientForUserLocked(policy, userHandle, parent); 3582 } 3583 } 3584 3585 @Override 3586 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 3587 if (!mHasFeature) { 3588 return true; 3589 } 3590 enforceFullCrossUsersPermission(userHandle); 3591 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 3592 3593 synchronized (this) { 3594 int targetUser = getProfileParentId(userHandle); 3595 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false)); 3596 return isActivePasswordSufficientForUserLocked(policy, targetUser, false); 3597 } 3598 } 3599 3600 private boolean isActivePasswordSufficientForUserLocked( 3601 DevicePolicyData policy, int userHandle, boolean parent) { 3602 if (policy.mActivePasswordQuality < getPasswordQuality(null, userHandle, parent) 3603 || policy.mActivePasswordLength < getPasswordMinimumLength( 3604 null, userHandle, parent)) { 3605 return false; 3606 } 3607 if (policy.mActivePasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3608 return true; 3609 } 3610 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase( 3611 null, userHandle, parent) 3612 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase( 3613 null, userHandle, parent) 3614 && policy.mActivePasswordLetters >= getPasswordMinimumLetters( 3615 null, userHandle, parent) 3616 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric( 3617 null, userHandle, parent) 3618 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols( 3619 null, userHandle, parent) 3620 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter( 3621 null, userHandle, parent); 3622 } 3623 3624 @Override 3625 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 3626 enforceFullCrossUsersPermission(userHandle); 3627 synchronized (this) { 3628 if (!isCallerWithSystemUid()) { 3629 // This API can only be called by an active device admin, 3630 // so try to retrieve it to check that the caller is one. 3631 getActiveAdminForCallerLocked( 3632 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 3633 } 3634 3635 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3636 3637 return policy.mFailedPasswordAttempts; 3638 } 3639 } 3640 3641 @Override 3642 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 3643 if (!mHasFeature) { 3644 return; 3645 } 3646 Preconditions.checkNotNull(who, "ComponentName is null"); 3647 synchronized (this) { 3648 // This API can only be called by an active device admin, 3649 // so try to retrieve it to check that the caller is one. 3650 getActiveAdminForCallerLocked( 3651 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 3652 ActiveAdmin ap = getActiveAdminForCallerLocked( 3653 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 3654 if (ap.maximumFailedPasswordsForWipe != num) { 3655 ap.maximumFailedPasswordsForWipe = num; 3656 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3657 } 3658 } 3659 } 3660 3661 @Override 3662 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 3663 if (!mHasFeature) { 3664 return 0; 3665 } 3666 enforceFullCrossUsersPermission(userHandle); 3667 synchronized (this) { 3668 ActiveAdmin admin = (who != null) 3669 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 3670 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 3671 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 3672 } 3673 } 3674 3675 @Override 3676 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 3677 if (!mHasFeature) { 3678 return UserHandle.USER_NULL; 3679 } 3680 enforceFullCrossUsersPermission(userHandle); 3681 synchronized (this) { 3682 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 3683 userHandle, parent); 3684 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 3685 } 3686 } 3687 3688 /** 3689 * Returns the admin with the strictest policy on maximum failed passwords for: 3690 * <ul> 3691 * <li>this user if it has a separate profile challenge, or 3692 * <li>this user and all profiles that don't have their own challenge otherwise. 3693 * </ul> 3694 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 3695 * the primary profile. 3696 * Returns {@code null} if no participating admin has that policy set. 3697 */ 3698 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 3699 int userHandle, boolean parent) { 3700 int count = 0; 3701 ActiveAdmin strictestAdmin = null; 3702 3703 // Return the strictest policy across all participating admins. 3704 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3705 final int N = admins.size(); 3706 for (int i = 0; i < N; i++) { 3707 ActiveAdmin admin = admins.get(i); 3708 if (admin.maximumFailedPasswordsForWipe == 3709 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 3710 continue; // No max number of failed passwords policy set for this profile. 3711 } 3712 3713 // We always favor the primary profile if several profiles have the same value set. 3714 int userId = admin.getUserHandle().getIdentifier(); 3715 if (count == 0 || 3716 count > admin.maximumFailedPasswordsForWipe || 3717 (count == admin.maximumFailedPasswordsForWipe && 3718 getUserInfo(userId).isPrimary())) { 3719 count = admin.maximumFailedPasswordsForWipe; 3720 strictestAdmin = admin; 3721 } 3722 } 3723 return strictestAdmin; 3724 } 3725 3726 private UserInfo getUserInfo(@UserIdInt int userId) { 3727 final long token = mInjector.binderClearCallingIdentity(); 3728 try { 3729 return mUserManager.getUserInfo(userId); 3730 } finally { 3731 mInjector.binderRestoreCallingIdentity(token); 3732 } 3733 } 3734 3735 @Override 3736 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 3737 if (!mHasFeature) { 3738 return false; 3739 } 3740 final int callingUid = mInjector.binderGetCallingUid(); 3741 final int userHandle = mInjector.userHandleGetCallingUserId(); 3742 3743 String password = passwordOrNull != null ? passwordOrNull : ""; 3744 3745 // Password resetting to empty/null is not allowed for managed profiles. 3746 if (TextUtils.isEmpty(password)) { 3747 enforceNotManagedProfile(userHandle, "clear the active password"); 3748 } 3749 3750 int quality; 3751 synchronized (this) { 3752 // If caller has PO (or DO) it can change the password, so see if that's the case first. 3753 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 3754 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 3755 if (admin == null) { 3756 // Otherwise, make sure the caller has any active admin with the right policy. 3757 admin = getActiveAdminForCallerLocked(null, 3758 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3759 3760 final boolean preN = getTargetSdk(admin.info.getPackageName(), userHandle) 3761 <= android.os.Build.VERSION_CODES.M; 3762 3763 // As of N, password resetting to empty/null is not allowed anymore. 3764 // TODO Should we allow DO/PO to set an empty password? 3765 if (TextUtils.isEmpty(password)) { 3766 if (!preN) { 3767 throw new SecurityException("Cannot call with null password"); 3768 } else { 3769 Slog.e(LOG_TAG, "Cannot call with null password"); 3770 return false; 3771 } 3772 } 3773 // As of N, password cannot be changed by the admin if it is already set. 3774 if (isLockScreenSecureUnchecked(userHandle)) { 3775 if (!preN) { 3776 throw new SecurityException("Admin cannot change current password"); 3777 } else { 3778 Slog.e(LOG_TAG, "Admin cannot change current password"); 3779 return false; 3780 } 3781 } 3782 } 3783 quality = getPasswordQuality(null, userHandle, /* parent */ false); 3784 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 3785 quality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3786 } 3787 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 3788 int realQuality = LockPatternUtils.computePasswordQuality(password); 3789 if (realQuality < quality 3790 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3791 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 3792 + Integer.toHexString(realQuality) 3793 + " does not meet required quality 0x" 3794 + Integer.toHexString(quality)); 3795 return false; 3796 } 3797 quality = Math.max(realQuality, quality); 3798 } 3799 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 3800 if (password.length() < length) { 3801 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 3802 + " does not meet required length " + length); 3803 return false; 3804 } 3805 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3806 int letters = 0; 3807 int uppercase = 0; 3808 int lowercase = 0; 3809 int numbers = 0; 3810 int symbols = 0; 3811 int nonletter = 0; 3812 for (int i = 0; i < password.length(); i++) { 3813 char c = password.charAt(i); 3814 if (c >= 'A' && c <= 'Z') { 3815 letters++; 3816 uppercase++; 3817 } else if (c >= 'a' && c <= 'z') { 3818 letters++; 3819 lowercase++; 3820 } else if (c >= '0' && c <= '9') { 3821 numbers++; 3822 nonletter++; 3823 } else { 3824 symbols++; 3825 nonletter++; 3826 } 3827 } 3828 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 3829 if(letters < neededLetters) { 3830 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 3831 + " does not meet required number of letters " + neededLetters); 3832 return false; 3833 } 3834 int neededNumbers = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 3835 if (numbers < neededNumbers) { 3836 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 3837 + " does not meet required number of numerical digits " 3838 + neededNumbers); 3839 return false; 3840 } 3841 int neededLowerCase = getPasswordMinimumLowerCase( 3842 null, userHandle, /* parent */ false); 3843 if (lowercase < neededLowerCase) { 3844 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 3845 + " does not meet required number of lowercase letters " 3846 + neededLowerCase); 3847 return false; 3848 } 3849 int neededUpperCase = getPasswordMinimumUpperCase( 3850 null, userHandle, /* parent */ false); 3851 if (uppercase < neededUpperCase) { 3852 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 3853 + " does not meet required number of uppercase letters " 3854 + neededUpperCase); 3855 return false; 3856 } 3857 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 3858 if (symbols < neededSymbols) { 3859 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 3860 + " does not meet required number of special symbols " + neededSymbols); 3861 return false; 3862 } 3863 int neededNonLetter = getPasswordMinimumNonLetter( 3864 null, userHandle, /* parent */ false); 3865 if (nonletter < neededNonLetter) { 3866 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 3867 + " does not meet required number of non-letter characters " 3868 + neededNonLetter); 3869 return false; 3870 } 3871 } 3872 } 3873 3874 DevicePolicyData policy = getUserData(userHandle); 3875 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 3876 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 3877 return false; 3878 } 3879 3880 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 3881 boolean doNotAskCredentialsOnBoot = 3882 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 3883 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 3884 setDoNotAskCredentialsOnBoot(); 3885 } 3886 3887 // Don't do this with the lock held, because it is going to call 3888 // back in to the service. 3889 final long ident = mInjector.binderClearCallingIdentity(); 3890 try { 3891 if (isManagedProfile(userHandle)) { 3892 mLockPatternUtils.setSeparateProfileChallengeEnabled(userHandle, true); 3893 } 3894 if (!TextUtils.isEmpty(password)) { 3895 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 3896 } else { 3897 mLockPatternUtils.clearLock(userHandle); 3898 } 3899 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 3900 if (requireEntry) { 3901 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 3902 UserHandle.USER_ALL); 3903 } 3904 synchronized (this) { 3905 int newOwner = requireEntry ? callingUid : -1; 3906 if (policy.mPasswordOwner != newOwner) { 3907 policy.mPasswordOwner = newOwner; 3908 saveSettingsLocked(userHandle); 3909 } 3910 } 3911 } finally { 3912 mInjector.binderRestoreCallingIdentity(ident); 3913 } 3914 3915 return true; 3916 } 3917 3918 private boolean isLockScreenSecureUnchecked(int userId) { 3919 long ident = mInjector.binderClearCallingIdentity(); 3920 try { 3921 return mLockPatternUtils.isSecure(userId); 3922 } finally { 3923 mInjector.binderRestoreCallingIdentity(ident); 3924 } 3925 } 3926 3927 private void setDoNotAskCredentialsOnBoot() { 3928 synchronized (this) { 3929 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3930 if (!policyData.doNotAskCredentialsOnBoot) { 3931 policyData.doNotAskCredentialsOnBoot = true; 3932 saveSettingsLocked(UserHandle.USER_SYSTEM); 3933 } 3934 } 3935 } 3936 3937 @Override 3938 public boolean getDoNotAskCredentialsOnBoot() { 3939 mContext.enforceCallingOrSelfPermission( 3940 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 3941 synchronized (this) { 3942 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 3943 return policyData.doNotAskCredentialsOnBoot; 3944 } 3945 } 3946 3947 @Override 3948 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 3949 if (!mHasFeature) { 3950 return; 3951 } 3952 Preconditions.checkNotNull(who, "ComponentName is null"); 3953 final int userHandle = mInjector.userHandleGetCallingUserId(); 3954 synchronized (this) { 3955 ActiveAdmin ap = getActiveAdminForCallerLocked( 3956 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 3957 if (ap.maximumTimeToUnlock != timeMs) { 3958 ap.maximumTimeToUnlock = timeMs; 3959 saveSettingsLocked(userHandle); 3960 updateMaximumTimeToLockLocked(userHandle); 3961 } 3962 } 3963 } 3964 3965 void updateMaximumTimeToLockLocked(int userHandle) { 3966 // Calculate the min timeout for all profiles - including the ones with a separate 3967 // challenge. Ideally if the timeout only affected the profile challenge we'd lock that 3968 // challenge only and keep the screen on. However there is no easy way of doing that at the 3969 // moment so we set the screen off timeout regardless of whether it affects the parent user 3970 // or the profile challenge only. 3971 long timeMs = Long.MAX_VALUE; 3972 List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 3973 for (UserInfo userInfo : profiles) { 3974 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 3975 final int N = policy.mAdminList.size(); 3976 for (int i = 0; i < N; i++) { 3977 ActiveAdmin admin = policy.mAdminList.get(i); 3978 if (admin.maximumTimeToUnlock > 0 3979 && timeMs > admin.maximumTimeToUnlock) { 3980 timeMs = admin.maximumTimeToUnlock; 3981 } 3982 } 3983 } 3984 3985 // We only store the last maximum time to lock on the parent profile. So if calling from a 3986 // managed profile, retrieve the policy for the parent. 3987 DevicePolicyData policy = getUserDataUnchecked(getProfileParentId(userHandle)); 3988 if (policy.mLastMaximumTimeToLock == timeMs) { 3989 return; 3990 } 3991 policy.mLastMaximumTimeToLock = timeMs; 3992 3993 final long ident = mInjector.binderClearCallingIdentity(); 3994 try { 3995 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 3996 // Make sure KEEP_SCREEN_ON is disabled, since that 3997 // would allow bypassing of the maximum time to lock. 3998 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 3999 } 4000 4001 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4002 (int) Math.min(policy.mLastMaximumTimeToLock, Integer.MAX_VALUE)); 4003 } finally { 4004 mInjector.binderRestoreCallingIdentity(ident); 4005 } 4006 } 4007 4008 @Override 4009 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 4010 if (!mHasFeature) { 4011 return 0; 4012 } 4013 enforceFullCrossUsersPermission(userHandle); 4014 synchronized (this) { 4015 long time = 0; 4016 4017 if (who != null) { 4018 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4019 return admin != null ? admin.maximumTimeToUnlock : time; 4020 } 4021 4022 // Return the strictest policy across all participating admins. 4023 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4024 userHandle, parent); 4025 final int N = admins.size(); 4026 for (int i = 0; i < N; i++) { 4027 ActiveAdmin admin = admins.get(i); 4028 if (time == 0) { 4029 time = admin.maximumTimeToUnlock; 4030 } else if (admin.maximumTimeToUnlock != 0 4031 && time > admin.maximumTimeToUnlock) { 4032 time = admin.maximumTimeToUnlock; 4033 } 4034 } 4035 return time; 4036 } 4037 } 4038 4039 @Override 4040 public void lockNow(boolean parent) { 4041 if (!mHasFeature) { 4042 return; 4043 } 4044 synchronized (this) { 4045 // This API can only be called by an active device admin, 4046 // so try to retrieve it to check that the caller is one. 4047 getActiveAdminForCallerLocked( 4048 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4049 4050 int userToLock = mInjector.userHandleGetCallingUserId(); 4051 4052 // Unless this is a managed profile with work challenge enabled, lock all users. 4053 if (parent || !isSeparateProfileChallengeEnabled(userToLock)) { 4054 userToLock = UserHandle.USER_ALL; 4055 } 4056 final long ident = mInjector.binderClearCallingIdentity(); 4057 try { 4058 mLockPatternUtils.requireStrongAuth( 4059 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 4060 if (userToLock == UserHandle.USER_ALL) { 4061 // Power off the display 4062 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 4063 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 4064 mInjector.getIWindowManager().lockNow(null); 4065 } 4066 } catch (RemoteException e) { 4067 } finally { 4068 mInjector.binderRestoreCallingIdentity(ident); 4069 } 4070 } 4071 } 4072 4073 @Override 4074 public void enforceCanManageCaCerts(ComponentName who) { 4075 if (who == null) { 4076 if (!isCallerDelegatedCertInstaller()) { 4077 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 4078 } 4079 } else { 4080 synchronized (this) { 4081 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4082 } 4083 } 4084 } 4085 4086 private void enforceCanManageInstalledKeys(ComponentName who) { 4087 if (who == null) { 4088 if (!isCallerDelegatedCertInstaller()) { 4089 throw new SecurityException("who == null, but caller is not cert installer"); 4090 } 4091 } else { 4092 synchronized (this) { 4093 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4094 } 4095 } 4096 } 4097 4098 private boolean isCallerDelegatedCertInstaller() { 4099 final int callingUid = mInjector.binderGetCallingUid(); 4100 final int userHandle = UserHandle.getUserId(callingUid); 4101 synchronized (this) { 4102 final DevicePolicyData policy = getUserData(userHandle); 4103 if (policy.mDelegatedCertInstallerPackage == null) { 4104 return false; 4105 } 4106 4107 try { 4108 int uid = mContext.getPackageManager().getPackageUidAsUser( 4109 policy.mDelegatedCertInstallerPackage, userHandle); 4110 return uid == callingUid; 4111 } catch (NameNotFoundException e) { 4112 return false; 4113 } 4114 } 4115 } 4116 4117 @Override 4118 public boolean approveCaCert(String alias, int userId, boolean approval) { 4119 enforceManageUsers(); 4120 synchronized (this) { 4121 Set<String> certs = getUserData(userId).mAcceptedCaCertificates; 4122 boolean changed = (approval ? certs.add(alias) : certs.remove(alias)); 4123 if (!changed) { 4124 return false; 4125 } 4126 saveSettingsLocked(userId); 4127 } 4128 new MonitoringCertNotificationTask().execute(userId); 4129 return true; 4130 } 4131 4132 @Override 4133 public boolean isCaCertApproved(String alias, int userId) { 4134 enforceManageUsers(); 4135 synchronized (this) { 4136 return getUserData(userId).mAcceptedCaCertificates.contains(alias); 4137 } 4138 } 4139 4140 @Override 4141 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 4142 enforceCanManageCaCerts(admin); 4143 4144 byte[] pemCert; 4145 try { 4146 X509Certificate cert = parseCert(certBuffer); 4147 pemCert = Credentials.convertToPem(cert); 4148 } catch (CertificateException ce) { 4149 Log.e(LOG_TAG, "Problem converting cert", ce); 4150 return false; 4151 } catch (IOException ioe) { 4152 Log.e(LOG_TAG, "Problem reading cert", ioe); 4153 return false; 4154 } 4155 4156 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4157 final long id = mInjector.binderClearCallingIdentity(); 4158 try { 4159 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4160 try { 4161 keyChainConnection.getService().installCaCertificate(pemCert); 4162 return true; 4163 } catch (RemoteException e) { 4164 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 4165 } finally { 4166 keyChainConnection.close(); 4167 } 4168 } catch (InterruptedException e1) { 4169 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 4170 Thread.currentThread().interrupt(); 4171 } finally { 4172 mInjector.binderRestoreCallingIdentity(id); 4173 } 4174 return false; 4175 } 4176 4177 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 4178 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 4179 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 4180 certBuffer)); 4181 } 4182 4183 @Override 4184 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 4185 enforceCanManageCaCerts(admin); 4186 4187 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4188 final long id = mInjector.binderClearCallingIdentity(); 4189 try { 4190 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4191 try { 4192 for (int i = 0 ; i < aliases.length; i++) { 4193 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 4194 } 4195 } catch (RemoteException e) { 4196 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 4197 } finally { 4198 keyChainConnection.close(); 4199 } 4200 } catch (InterruptedException ie) { 4201 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 4202 Thread.currentThread().interrupt(); 4203 } finally { 4204 mInjector.binderRestoreCallingIdentity(id); 4205 } 4206 } 4207 4208 @Override 4209 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, byte[] chain, 4210 String alias, boolean requestAccess) { 4211 enforceCanManageInstalledKeys(who); 4212 4213 final int callingUid = mInjector.binderGetCallingUid(); 4214 final long id = mInjector.binderClearCallingIdentity(); 4215 try { 4216 final KeyChainConnection keyChainConnection = 4217 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 4218 try { 4219 IKeyChainService keyChain = keyChainConnection.getService(); 4220 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) { 4221 return false; 4222 } 4223 if (requestAccess) { 4224 keyChain.setGrant(callingUid, alias, true); 4225 } 4226 return true; 4227 } catch (RemoteException e) { 4228 Log.e(LOG_TAG, "Installing certificate", e); 4229 } finally { 4230 keyChainConnection.close(); 4231 } 4232 } catch (InterruptedException e) { 4233 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 4234 Thread.currentThread().interrupt(); 4235 } finally { 4236 mInjector.binderRestoreCallingIdentity(id); 4237 } 4238 return false; 4239 } 4240 4241 @Override 4242 public boolean removeKeyPair(ComponentName who, String alias) { 4243 enforceCanManageInstalledKeys(who); 4244 4245 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4246 final long id = Binder.clearCallingIdentity(); 4247 try { 4248 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4249 try { 4250 IKeyChainService keyChain = keyChainConnection.getService(); 4251 return keyChain.removeKeyPair(alias); 4252 } catch (RemoteException e) { 4253 Log.e(LOG_TAG, "Removing keypair", e); 4254 } finally { 4255 keyChainConnection.close(); 4256 } 4257 } catch (InterruptedException e) { 4258 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 4259 Thread.currentThread().interrupt(); 4260 } finally { 4261 Binder.restoreCallingIdentity(id); 4262 } 4263 return false; 4264 } 4265 4266 @Override 4267 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 4268 final IBinder response) { 4269 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 4270 if (!isCallerWithSystemUid()) { 4271 return; 4272 } 4273 4274 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 4275 // If there is a profile owner, redirect to that; otherwise query the device owner. 4276 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 4277 if (aliasChooser == null && caller.isSystem()) { 4278 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 4279 if (deviceOwnerAdmin != null) { 4280 aliasChooser = deviceOwnerAdmin.info.getComponent(); 4281 } 4282 } 4283 if (aliasChooser == null) { 4284 sendPrivateKeyAliasResponse(null, response); 4285 return; 4286 } 4287 4288 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 4289 intent.setComponent(aliasChooser); 4290 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 4291 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 4292 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 4293 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 4294 4295 final long id = mInjector.binderClearCallingIdentity(); 4296 try { 4297 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 4298 @Override 4299 public void onReceive(Context context, Intent intent) { 4300 final String chosenAlias = getResultData(); 4301 sendPrivateKeyAliasResponse(chosenAlias, response); 4302 } 4303 }, null, Activity.RESULT_OK, null, null); 4304 } finally { 4305 mInjector.binderRestoreCallingIdentity(id); 4306 } 4307 } 4308 4309 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 4310 final IKeyChainAliasCallback keyChainAliasResponse = 4311 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 4312 new AsyncTask<Void, Void, Void>() { 4313 @Override 4314 protected Void doInBackground(Void... unused) { 4315 try { 4316 keyChainAliasResponse.alias(alias); 4317 } catch (Exception e) { 4318 // Catch everything (not just RemoteException): caller could throw a 4319 // RuntimeException back across processes. 4320 Log.e(LOG_TAG, "error while responding to callback", e); 4321 } 4322 return null; 4323 } 4324 }.execute(); 4325 } 4326 4327 @Override 4328 public void setCertInstallerPackage(ComponentName who, String installerPackage) 4329 throws SecurityException { 4330 int userHandle = UserHandle.getCallingUserId(); 4331 synchronized (this) { 4332 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4333 if (getTargetSdk(who.getPackageName(), userHandle) >= Build.VERSION_CODES.N) { 4334 if (installerPackage != null && 4335 !isPackageInstalledForUser(installerPackage, userHandle)) { 4336 throw new IllegalArgumentException("Package " + installerPackage 4337 + " is not installed on the current user"); 4338 } 4339 } 4340 DevicePolicyData policy = getUserData(userHandle); 4341 policy.mDelegatedCertInstallerPackage = installerPackage; 4342 saveSettingsLocked(userHandle); 4343 } 4344 } 4345 4346 @Override 4347 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 4348 int userHandle = UserHandle.getCallingUserId(); 4349 synchronized (this) { 4350 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4351 DevicePolicyData policy = getUserData(userHandle); 4352 return policy.mDelegatedCertInstallerPackage; 4353 } 4354 } 4355 4356 @Override 4357 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage) 4358 throws SecurityException { 4359 synchronized (this) { 4360 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4361 } 4362 4363 final int userId = mInjector.userHandleGetCallingUserId(); 4364 final long token = mInjector.binderClearCallingIdentity(); 4365 try{ 4366 ConnectivityManager connectivityManager = (ConnectivityManager) 4367 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4368 return connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage); 4369 } finally { 4370 mInjector.binderRestoreCallingIdentity(token); 4371 } 4372 } 4373 4374 @Override 4375 public String getAlwaysOnVpnPackage(ComponentName admin) 4376 throws SecurityException { 4377 synchronized (this) { 4378 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4379 } 4380 4381 final int userId = mInjector.userHandleGetCallingUserId(); 4382 final long token = mInjector.binderClearCallingIdentity(); 4383 try{ 4384 ConnectivityManager connectivityManager = (ConnectivityManager) 4385 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4386 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 4387 } finally { 4388 mInjector.binderRestoreCallingIdentity(token); 4389 } 4390 } 4391 4392 private void wipeDataLocked(boolean wipeExtRequested, String reason) { 4393 if (wipeExtRequested) { 4394 StorageManager sm = (StorageManager) mContext.getSystemService( 4395 Context.STORAGE_SERVICE); 4396 sm.wipeAdoptableDisks(); 4397 } 4398 try { 4399 RecoverySystem.rebootWipeUserData(mContext, reason); 4400 } catch (IOException | SecurityException e) { 4401 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 4402 } 4403 } 4404 4405 @Override 4406 public void wipeData(int flags) { 4407 if (!mHasFeature) { 4408 return; 4409 } 4410 final int userHandle = mInjector.userHandleGetCallingUserId(); 4411 enforceFullCrossUsersPermission(userHandle); 4412 synchronized (this) { 4413 // This API can only be called by an active device admin, 4414 // so try to retrieve it to check that the caller is one. 4415 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 4416 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 4417 4418 final String source = admin.info.getComponent().flattenToShortString(); 4419 4420 long ident = mInjector.binderClearCallingIdentity(); 4421 try { 4422 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 4423 if (!isDeviceOwner(admin.info.getComponent(), userHandle)) { 4424 throw new SecurityException( 4425 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 4426 } 4427 PersistentDataBlockManager manager = (PersistentDataBlockManager) 4428 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 4429 if (manager != null) { 4430 manager.wipe(); 4431 } 4432 } 4433 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 4434 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 4435 "DevicePolicyManager.wipeData() from " + source); 4436 } finally { 4437 mInjector.binderRestoreCallingIdentity(ident); 4438 } 4439 } 4440 } 4441 4442 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, String reason) { 4443 if (userHandle == UserHandle.USER_SYSTEM) { 4444 wipeDataLocked(wipeExtRequested, reason); 4445 } else { 4446 mHandler.post(new Runnable() { 4447 @Override 4448 public void run() { 4449 try { 4450 IActivityManager am = mInjector.getIActivityManager(); 4451 if (am.getCurrentUser().id == userHandle) { 4452 am.switchUser(UserHandle.USER_SYSTEM); 4453 } 4454 4455 boolean isManagedProfile = isManagedProfile(userHandle); 4456 if (!mUserManager.removeUser(userHandle)) { 4457 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 4458 } else if (isManagedProfile) { 4459 sendWipeProfileNotification(); 4460 } 4461 } catch (RemoteException re) { 4462 // Shouldn't happen 4463 } 4464 } 4465 }); 4466 } 4467 } 4468 4469 private void sendWipeProfileNotification() { 4470 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 4471 Notification notification = new Notification.Builder(mContext) 4472 .setSmallIcon(android.R.drawable.stat_sys_warning) 4473 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 4474 .setContentText(contentText) 4475 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 4476 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 4477 .build(); 4478 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 4479 } 4480 4481 private void clearWipeProfileNotification() { 4482 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 4483 } 4484 4485 @Override 4486 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 4487 if (!mHasFeature) { 4488 return; 4489 } 4490 enforceFullCrossUsersPermission(userHandle); 4491 mContext.enforceCallingOrSelfPermission( 4492 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4493 4494 synchronized (this) { 4495 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 4496 if (admin == null) { 4497 result.sendResult(null); 4498 return; 4499 } 4500 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 4501 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4502 intent.setComponent(admin.info.getComponent()); 4503 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 4504 null, new BroadcastReceiver() { 4505 @Override 4506 public void onReceive(Context context, Intent intent) { 4507 result.sendResult(getResultExtras(false)); 4508 } 4509 }, null, Activity.RESULT_OK, null, null); 4510 } 4511 } 4512 4513 @Override 4514 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 4515 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 4516 if (!mHasFeature) { 4517 return; 4518 } 4519 enforceFullCrossUsersPermission(userHandle); 4520 4521 // Managed Profile password can only be changed when it has a separate challenge. 4522 if (!isSeparateProfileChallengeEnabled(userHandle)) { 4523 enforceNotManagedProfile(userHandle, "set the active password"); 4524 } 4525 4526 mContext.enforceCallingOrSelfPermission( 4527 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4528 validateQualityConstant(quality); 4529 4530 DevicePolicyData policy = getUserData(userHandle); 4531 4532 long ident = mInjector.binderClearCallingIdentity(); 4533 try { 4534 synchronized (this) { 4535 policy.mActivePasswordQuality = quality; 4536 policy.mActivePasswordLength = length; 4537 policy.mActivePasswordLetters = letters; 4538 policy.mActivePasswordLowerCase = lowercase; 4539 policy.mActivePasswordUpperCase = uppercase; 4540 policy.mActivePasswordNumeric = numbers; 4541 policy.mActivePasswordSymbols = symbols; 4542 policy.mActivePasswordNonLetter = nonletter; 4543 policy.mFailedPasswordAttempts = 0; 4544 saveSettingsLocked(userHandle); 4545 updatePasswordExpirationsLocked(userHandle); 4546 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 4547 4548 // Send a broadcast to each profile using this password as its primary unlock. 4549 sendAdminCommandForLockscreenPoliciesLocked( 4550 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 4551 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 4552 } 4553 } finally { 4554 mInjector.binderRestoreCallingIdentity(ident); 4555 } 4556 } 4557 4558 /** 4559 * Called any time the device password is updated. Resets all password expiration clocks. 4560 */ 4561 private void updatePasswordExpirationsLocked(int userHandle) { 4562 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 4563 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4564 userHandle, /* parent */ false); 4565 final int N = admins.size(); 4566 for (int i = 0; i < N; i++) { 4567 ActiveAdmin admin = admins.get(i); 4568 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 4569 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 4570 long timeout = admin.passwordExpirationTimeout; 4571 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 4572 admin.passwordExpirationDate = expiration; 4573 } 4574 } 4575 for (int affectedUserId : affectedUserIds) { 4576 saveSettingsLocked(affectedUserId); 4577 } 4578 } 4579 4580 @Override 4581 public void reportFailedPasswordAttempt(int userHandle) { 4582 enforceFullCrossUsersPermission(userHandle); 4583 if (!isSeparateProfileChallengeEnabled(userHandle)) { 4584 enforceNotManagedProfile(userHandle, 4585 "report failed password attempt if separate profile challenge is not in place"); 4586 } 4587 mContext.enforceCallingOrSelfPermission( 4588 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4589 4590 final long ident = mInjector.binderClearCallingIdentity(); 4591 try { 4592 boolean wipeData = false; 4593 int identifier = 0; 4594 synchronized (this) { 4595 DevicePolicyData policy = getUserData(userHandle); 4596 policy.mFailedPasswordAttempts++; 4597 saveSettingsLocked(userHandle); 4598 if (mHasFeature) { 4599 ActiveAdmin strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4600 userHandle, /* parent */ false); 4601 int max = strictestAdmin != null 4602 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 4603 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 4604 // Wipe the user/profile associated with the policy that was violated. This 4605 // is not necessarily calling user: if the policy that fired was from a 4606 // managed profile rather than the main user profile, we wipe former only. 4607 wipeData = true; 4608 identifier = strictestAdmin.getUserHandle().getIdentifier(); 4609 } 4610 4611 sendAdminCommandForLockscreenPoliciesLocked( 4612 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 4613 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4614 } 4615 } 4616 if (wipeData) { 4617 // Call without holding lock. 4618 wipeDeviceOrUserLocked(false, identifier, 4619 "reportFailedPasswordAttempt()"); 4620 } 4621 } finally { 4622 mInjector.binderRestoreCallingIdentity(ident); 4623 } 4624 4625 if (mInjector.securityLogIsLoggingEnabled()) { 4626 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 4627 /*method strength*/ 1); 4628 } 4629 } 4630 4631 @Override 4632 public void reportSuccessfulPasswordAttempt(int userHandle) { 4633 enforceFullCrossUsersPermission(userHandle); 4634 mContext.enforceCallingOrSelfPermission( 4635 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4636 4637 synchronized (this) { 4638 DevicePolicyData policy = getUserData(userHandle); 4639 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 4640 long ident = mInjector.binderClearCallingIdentity(); 4641 try { 4642 policy.mFailedPasswordAttempts = 0; 4643 policy.mPasswordOwner = -1; 4644 saveSettingsLocked(userHandle); 4645 if (mHasFeature) { 4646 sendAdminCommandForLockscreenPoliciesLocked( 4647 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 4648 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4649 } 4650 } finally { 4651 mInjector.binderRestoreCallingIdentity(ident); 4652 } 4653 } 4654 } 4655 4656 if (mInjector.securityLogIsLoggingEnabled()) { 4657 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 4658 /*method strength*/ 1); 4659 } 4660 } 4661 4662 @Override 4663 public void reportFailedFingerprintAttempt(int userHandle) { 4664 enforceFullCrossUsersPermission(userHandle); 4665 mContext.enforceCallingOrSelfPermission( 4666 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4667 if (mInjector.securityLogIsLoggingEnabled()) { 4668 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 4669 /*method strength*/ 0); 4670 } 4671 } 4672 4673 @Override 4674 public void reportSuccessfulFingerprintAttempt(int userHandle) { 4675 enforceFullCrossUsersPermission(userHandle); 4676 mContext.enforceCallingOrSelfPermission( 4677 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4678 if (mInjector.securityLogIsLoggingEnabled()) { 4679 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 4680 /*method strength*/ 0); 4681 } 4682 } 4683 4684 @Override 4685 public void reportKeyguardDismissed(int userHandle) { 4686 enforceFullCrossUsersPermission(userHandle); 4687 mContext.enforceCallingOrSelfPermission( 4688 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4689 4690 if (mInjector.securityLogIsLoggingEnabled()) { 4691 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 4692 } 4693 } 4694 4695 @Override 4696 public void reportKeyguardSecured(int userHandle) { 4697 enforceFullCrossUsersPermission(userHandle); 4698 mContext.enforceCallingOrSelfPermission( 4699 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4700 4701 if (mInjector.securityLogIsLoggingEnabled()) { 4702 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 4703 } 4704 } 4705 4706 @Override 4707 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 4708 String exclusionList) { 4709 if (!mHasFeature) { 4710 return null; 4711 } 4712 synchronized(this) { 4713 Preconditions.checkNotNull(who, "ComponentName is null"); 4714 4715 // Only check if system user has set global proxy. We don't allow other users to set it. 4716 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4717 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4718 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 4719 4720 // Scan through active admins and find if anyone has already 4721 // set the global proxy. 4722 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 4723 for (ComponentName component : compSet) { 4724 ActiveAdmin ap = policy.mAdminMap.get(component); 4725 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 4726 // Another admin already sets the global proxy 4727 // Return it to the caller. 4728 return component; 4729 } 4730 } 4731 4732 // If the user is not system, don't set the global proxy. Fail silently. 4733 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 4734 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 4735 + UserHandle.getCallingUserId() + " is not permitted."); 4736 return null; 4737 } 4738 if (proxySpec == null) { 4739 admin.specifiesGlobalProxy = false; 4740 admin.globalProxySpec = null; 4741 admin.globalProxyExclusionList = null; 4742 } else { 4743 4744 admin.specifiesGlobalProxy = true; 4745 admin.globalProxySpec = proxySpec; 4746 admin.globalProxyExclusionList = exclusionList; 4747 } 4748 4749 // Reset the global proxy accordingly 4750 // Do this using system permissions, as apps cannot write to secure settings 4751 long origId = mInjector.binderClearCallingIdentity(); 4752 try { 4753 resetGlobalProxyLocked(policy); 4754 } finally { 4755 mInjector.binderRestoreCallingIdentity(origId); 4756 } 4757 return null; 4758 } 4759 } 4760 4761 @Override 4762 public ComponentName getGlobalProxyAdmin(int userHandle) { 4763 if (!mHasFeature) { 4764 return null; 4765 } 4766 enforceFullCrossUsersPermission(userHandle); 4767 synchronized(this) { 4768 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4769 // Scan through active admins and find if anyone has already 4770 // set the global proxy. 4771 final int N = policy.mAdminList.size(); 4772 for (int i = 0; i < N; i++) { 4773 ActiveAdmin ap = policy.mAdminList.get(i); 4774 if (ap.specifiesGlobalProxy) { 4775 // Device admin sets the global proxy 4776 // Return it to the caller. 4777 return ap.info.getComponent(); 4778 } 4779 } 4780 } 4781 // No device admin sets the global proxy. 4782 return null; 4783 } 4784 4785 @Override 4786 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 4787 synchronized (this) { 4788 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4789 } 4790 long token = mInjector.binderClearCallingIdentity(); 4791 try { 4792 ConnectivityManager connectivityManager = (ConnectivityManager) 4793 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4794 connectivityManager.setGlobalProxy(proxyInfo); 4795 } finally { 4796 mInjector.binderRestoreCallingIdentity(token); 4797 } 4798 } 4799 4800 private void resetGlobalProxyLocked(DevicePolicyData policy) { 4801 final int N = policy.mAdminList.size(); 4802 for (int i = 0; i < N; i++) { 4803 ActiveAdmin ap = policy.mAdminList.get(i); 4804 if (ap.specifiesGlobalProxy) { 4805 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 4806 return; 4807 } 4808 } 4809 // No device admins defining global proxies - reset global proxy settings to none 4810 saveGlobalProxyLocked(null, null); 4811 } 4812 4813 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 4814 if (exclusionList == null) { 4815 exclusionList = ""; 4816 } 4817 if (proxySpec == null) { 4818 proxySpec = ""; 4819 } 4820 // Remove white spaces 4821 proxySpec = proxySpec.trim(); 4822 String data[] = proxySpec.split(":"); 4823 int proxyPort = 8080; 4824 if (data.length > 1) { 4825 try { 4826 proxyPort = Integer.parseInt(data[1]); 4827 } catch (NumberFormatException e) {} 4828 } 4829 exclusionList = exclusionList.trim(); 4830 4831 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 4832 if (!proxyProperties.isValid()) { 4833 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 4834 return; 4835 } 4836 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 4837 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 4838 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 4839 exclusionList); 4840 } 4841 4842 /** 4843 * Set the storage encryption request for a single admin. Returns the new total request 4844 * status (for all admins). 4845 */ 4846 @Override 4847 public int setStorageEncryption(ComponentName who, boolean encrypt) { 4848 if (!mHasFeature) { 4849 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4850 } 4851 Preconditions.checkNotNull(who, "ComponentName is null"); 4852 final int userHandle = UserHandle.getCallingUserId(); 4853 synchronized (this) { 4854 // Check for permissions 4855 // Only system user can set storage encryption 4856 if (userHandle != UserHandle.USER_SYSTEM) { 4857 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 4858 + UserHandle.getCallingUserId() + " is not permitted."); 4859 return 0; 4860 } 4861 4862 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4863 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 4864 4865 // Quick exit: If the filesystem does not support encryption, we can exit early. 4866 if (!isEncryptionSupported()) { 4867 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4868 } 4869 4870 // (1) Record the value for the admin so it's sticky 4871 if (ap.encryptionRequested != encrypt) { 4872 ap.encryptionRequested = encrypt; 4873 saveSettingsLocked(userHandle); 4874 } 4875 4876 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4877 // (2) Compute "max" for all admins 4878 boolean newRequested = false; 4879 final int N = policy.mAdminList.size(); 4880 for (int i = 0; i < N; i++) { 4881 newRequested |= policy.mAdminList.get(i).encryptionRequested; 4882 } 4883 4884 // Notify OS of new request 4885 setEncryptionRequested(newRequested); 4886 4887 // Return the new global request status 4888 return newRequested 4889 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 4890 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4891 } 4892 } 4893 4894 /** 4895 * Get the current storage encryption request status for a given admin, or aggregate of all 4896 * active admins. 4897 */ 4898 @Override 4899 public boolean getStorageEncryption(ComponentName who, int userHandle) { 4900 if (!mHasFeature) { 4901 return false; 4902 } 4903 enforceFullCrossUsersPermission(userHandle); 4904 synchronized (this) { 4905 // Check for permissions if a particular caller is specified 4906 if (who != null) { 4907 // When checking for a single caller, status is based on caller's request 4908 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 4909 return ap != null ? ap.encryptionRequested : false; 4910 } 4911 4912 // If no particular caller is specified, return the aggregate set of requests. 4913 // This is short circuited by returning true on the first hit. 4914 DevicePolicyData policy = getUserData(userHandle); 4915 final int N = policy.mAdminList.size(); 4916 for (int i = 0; i < N; i++) { 4917 if (policy.mAdminList.get(i).encryptionRequested) { 4918 return true; 4919 } 4920 } 4921 return false; 4922 } 4923 } 4924 4925 /** 4926 * Get the current encryption status of the device. 4927 */ 4928 @Override 4929 public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) { 4930 if (!mHasFeature) { 4931 // Ok to return current status. 4932 } 4933 enforceFullCrossUsersPermission(userHandle); 4934 4935 // It's not critical here, but let's make sure the package name is correct, in case 4936 // we start using it for different purposes. 4937 ensureCallerPackage(callerPackage); 4938 4939 final ApplicationInfo ai; 4940 try { 4941 ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle); 4942 } catch (RemoteException e) { 4943 throw new SecurityException(e); 4944 } 4945 4946 boolean legacyApp = false; 4947 if (ai.targetSdkVersion <= Build.VERSION_CODES.M) { 4948 legacyApp = true; 4949 } else if ("com.google.android.apps.enterprise.dmagent".equals(ai.packageName) 4950 && ai.versionCode == 697) { 4951 // TODO: STOPSHIP remove this (revert ag/895987) once a new prebuilt is dropped 4952 legacyApp = true; 4953 } 4954 4955 final int rawStatus = getEncryptionStatus(); 4956 if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) { 4957 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 4958 } 4959 return rawStatus; 4960 } 4961 4962 /** 4963 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 4964 */ 4965 private boolean isEncryptionSupported() { 4966 // Note, this can be implemented as 4967 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4968 // But is provided as a separate internal method if there's a faster way to do a 4969 // simple check for supported-or-not. 4970 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4971 } 4972 4973 /** 4974 * Hook to low-levels: Reporting the current status of encryption. 4975 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 4976 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 4977 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, 4978 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or 4979 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 4980 */ 4981 private int getEncryptionStatus() { 4982 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 4983 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER; 4984 } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) { 4985 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 4986 } else if (mInjector.storageManagerIsEncrypted()) { 4987 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 4988 } else if (mInjector.storageManagerIsEncryptable()) { 4989 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 4990 } else { 4991 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 4992 } 4993 } 4994 4995 /** 4996 * Hook to low-levels: If needed, record the new admin setting for encryption. 4997 */ 4998 private void setEncryptionRequested(boolean encrypt) { 4999 } 5000 5001 /** 5002 * Set whether the screen capture is disabled for the user managed by the specified admin. 5003 */ 5004 @Override 5005 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 5006 if (!mHasFeature) { 5007 return; 5008 } 5009 Preconditions.checkNotNull(who, "ComponentName is null"); 5010 final int userHandle = UserHandle.getCallingUserId(); 5011 synchronized (this) { 5012 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5013 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5014 if (ap.disableScreenCapture != disabled) { 5015 ap.disableScreenCapture = disabled; 5016 saveSettingsLocked(userHandle); 5017 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 5018 } 5019 } 5020 } 5021 5022 /** 5023 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 5024 * active admin (if given admin is null). 5025 */ 5026 @Override 5027 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 5028 if (!mHasFeature) { 5029 return false; 5030 } 5031 synchronized (this) { 5032 if (who != null) { 5033 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5034 return (admin != null) ? admin.disableScreenCapture : false; 5035 } 5036 5037 DevicePolicyData policy = getUserData(userHandle); 5038 final int N = policy.mAdminList.size(); 5039 for (int i = 0; i < N; i++) { 5040 ActiveAdmin admin = policy.mAdminList.get(i); 5041 if (admin.disableScreenCapture) { 5042 return true; 5043 } 5044 } 5045 return false; 5046 } 5047 } 5048 5049 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 5050 final boolean disabled) { 5051 mHandler.post(new Runnable() { 5052 @Override 5053 public void run() { 5054 try { 5055 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 5056 } catch (RemoteException e) { 5057 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 5058 } 5059 } 5060 }); 5061 } 5062 5063 /** 5064 * Set whether auto time is required by the specified admin (must be device owner). 5065 */ 5066 @Override 5067 public void setAutoTimeRequired(ComponentName who, boolean required) { 5068 if (!mHasFeature) { 5069 return; 5070 } 5071 Preconditions.checkNotNull(who, "ComponentName is null"); 5072 final int userHandle = UserHandle.getCallingUserId(); 5073 synchronized (this) { 5074 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5075 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5076 if (admin.requireAutoTime != required) { 5077 admin.requireAutoTime = required; 5078 saveSettingsLocked(userHandle); 5079 } 5080 } 5081 5082 // Turn AUTO_TIME on in settings if it is required 5083 if (required) { 5084 long ident = mInjector.binderClearCallingIdentity(); 5085 try { 5086 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 5087 } finally { 5088 mInjector.binderRestoreCallingIdentity(ident); 5089 } 5090 } 5091 } 5092 5093 /** 5094 * Returns whether or not auto time is required by the device owner. 5095 */ 5096 @Override 5097 public boolean getAutoTimeRequired() { 5098 if (!mHasFeature) { 5099 return false; 5100 } 5101 synchronized (this) { 5102 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5103 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 5104 } 5105 } 5106 5107 @Override 5108 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 5109 if (!mHasFeature) { 5110 return; 5111 } 5112 Preconditions.checkNotNull(who, "ComponentName is null"); 5113 // Allow setting this policy to true only if there is a split system user. 5114 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 5115 throw new UnsupportedOperationException( 5116 "Cannot force ephemeral users on systems without split system user."); 5117 } 5118 boolean removeAllUsers = false; 5119 synchronized (this) { 5120 final ActiveAdmin deviceOwner = 5121 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5122 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 5123 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 5124 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 5125 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 5126 removeAllUsers = forceEphemeralUsers; 5127 } 5128 } 5129 if (removeAllUsers) { 5130 long identitity = mInjector.binderClearCallingIdentity(); 5131 try { 5132 mUserManagerInternal.removeAllUsers(); 5133 } finally { 5134 mInjector.binderRestoreCallingIdentity(identitity); 5135 } 5136 } 5137 } 5138 5139 @Override 5140 public boolean getForceEphemeralUsers(ComponentName who) { 5141 if (!mHasFeature) { 5142 return false; 5143 } 5144 Preconditions.checkNotNull(who, "ComponentName is null"); 5145 synchronized (this) { 5146 final ActiveAdmin deviceOwner = 5147 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5148 return deviceOwner.forceEphemeralUsers; 5149 } 5150 } 5151 5152 private boolean isDeviceOwnerManagedSingleUserDevice() { 5153 synchronized (this) { 5154 if (!mOwners.hasDeviceOwner()) { 5155 return false; 5156 } 5157 } 5158 final long callingIdentity = mInjector.binderClearCallingIdentity(); 5159 try { 5160 if (mInjector.userManagerIsSplitSystemUser()) { 5161 // In split system user mode, only allow the case where the device owner is managing 5162 // the only non-system user of the device 5163 return (mUserManager.getUserCount() == 2 5164 && mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM); 5165 } else { 5166 return mUserManager.getUserCount() == 1; 5167 } 5168 } finally { 5169 mInjector.binderRestoreCallingIdentity(callingIdentity); 5170 } 5171 } 5172 5173 private void ensureDeviceOwnerManagingSingleUser(ComponentName who) throws SecurityException { 5174 synchronized (this) { 5175 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5176 } 5177 if (!isDeviceOwnerManagedSingleUserDevice()) { 5178 throw new SecurityException( 5179 "There should only be one user, managed by Device Owner"); 5180 } 5181 } 5182 5183 @Override 5184 public boolean requestBugreport(ComponentName who) { 5185 if (!mHasFeature) { 5186 return false; 5187 } 5188 Preconditions.checkNotNull(who, "ComponentName is null"); 5189 ensureDeviceOwnerManagingSingleUser(who); 5190 5191 if (mRemoteBugreportServiceIsActive.get() 5192 || (getDeviceOwnerRemoteBugreportUri() != null)) { 5193 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 5194 return false; 5195 } 5196 5197 final long callingIdentity = mInjector.binderClearCallingIdentity(); 5198 try { 5199 ActivityManagerNative.getDefault().requestBugReport( 5200 ActivityManager.BUGREPORT_OPTION_REMOTE); 5201 5202 mRemoteBugreportServiceIsActive.set(true); 5203 mRemoteBugreportSharingAccepted.set(false); 5204 registerRemoteBugreportReceivers(); 5205 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5206 RemoteBugreportUtils.buildNotification(mContext, 5207 DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL); 5208 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 5209 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 5210 return true; 5211 } catch (RemoteException re) { 5212 // should never happen 5213 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 5214 return false; 5215 } finally { 5216 mInjector.binderRestoreCallingIdentity(callingIdentity); 5217 } 5218 } 5219 5220 synchronized void sendDeviceOwnerCommand(String action, Bundle extras) { 5221 Intent intent = new Intent(action); 5222 intent.setComponent(mOwners.getDeviceOwnerComponent()); 5223 if (extras != null) { 5224 intent.putExtras(extras); 5225 } 5226 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 5227 } 5228 5229 private synchronized String getDeviceOwnerRemoteBugreportUri() { 5230 return mOwners.getDeviceOwnerRemoteBugreportUri(); 5231 } 5232 5233 private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 5234 String bugreportHash) { 5235 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 5236 } 5237 5238 private void registerRemoteBugreportReceivers() { 5239 try { 5240 IntentFilter filterFinished = new IntentFilter( 5241 DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH, 5242 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 5243 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 5244 } catch (IntentFilter.MalformedMimeTypeException e) { 5245 // should never happen, as setting a constant 5246 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 5247 } 5248 IntentFilter filterConsent = new IntentFilter(); 5249 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 5250 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 5251 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 5252 } 5253 5254 private void onBugreportFinished(Intent intent) { 5255 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 5256 mRemoteBugreportServiceIsActive.set(false); 5257 Uri bugreportUri = intent.getData(); 5258 String bugreportUriString = null; 5259 if (bugreportUri != null) { 5260 bugreportUriString = bugreportUri.toString(); 5261 } 5262 String bugreportHash = intent.getStringExtra( 5263 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH); 5264 if (mRemoteBugreportSharingAccepted.get()) { 5265 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 5266 mInjector.getNotificationManager().cancel(LOG_TAG, 5267 RemoteBugreportUtils.NOTIFICATION_ID); 5268 } else { 5269 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 5270 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5271 RemoteBugreportUtils.buildNotification(mContext, 5272 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 5273 UserHandle.ALL); 5274 } 5275 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5276 } 5277 5278 private void onBugreportFailed() { 5279 mRemoteBugreportServiceIsActive.set(false); 5280 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 5281 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 5282 mRemoteBugreportSharingAccepted.set(false); 5283 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5284 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 5285 Bundle extras = new Bundle(); 5286 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 5287 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 5288 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 5289 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 5290 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5291 } 5292 5293 private void onBugreportSharingAccepted() { 5294 mRemoteBugreportSharingAccepted.set(true); 5295 String bugreportUriString = null; 5296 String bugreportHash = null; 5297 synchronized (this) { 5298 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 5299 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 5300 } 5301 if (bugreportUriString != null) { 5302 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 5303 } else if (mRemoteBugreportServiceIsActive.get()) { 5304 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5305 RemoteBugreportUtils.buildNotification(mContext, 5306 DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED), 5307 UserHandle.ALL); 5308 } 5309 } 5310 5311 private void onBugreportSharingDeclined() { 5312 if (mRemoteBugreportServiceIsActive.get()) { 5313 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 5314 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 5315 mRemoteBugreportServiceIsActive.set(false); 5316 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 5317 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5318 } 5319 mRemoteBugreportSharingAccepted.set(false); 5320 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5321 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 5322 } 5323 5324 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 5325 String bugreportHash) { 5326 ParcelFileDescriptor pfd = null; 5327 try { 5328 if (bugreportUriString == null) { 5329 throw new FileNotFoundException(); 5330 } 5331 Uri bugreportUri = Uri.parse(bugreportUriString); 5332 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 5333 5334 synchronized (this) { 5335 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 5336 intent.setComponent(mOwners.getDeviceOwnerComponent()); 5337 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 5338 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 5339 mContext.grantUriPermission(mOwners.getDeviceOwnerComponent().getPackageName(), 5340 bugreportUri, Intent.FLAG_GRANT_READ_URI_PERMISSION); 5341 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 5342 } 5343 } catch (FileNotFoundException e) { 5344 Bundle extras = new Bundle(); 5345 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 5346 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 5347 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 5348 } finally { 5349 try { 5350 if (pfd != null) { 5351 pfd.close(); 5352 } 5353 } catch (IOException ex) { 5354 // Ignore 5355 } 5356 mRemoteBugreportSharingAccepted.set(false); 5357 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5358 } 5359 } 5360 5361 /** 5362 * Disables all device cameras according to the specified admin. 5363 */ 5364 @Override 5365 public void setCameraDisabled(ComponentName who, boolean disabled) { 5366 if (!mHasFeature) { 5367 return; 5368 } 5369 Preconditions.checkNotNull(who, "ComponentName is null"); 5370 final int userHandle = mInjector.userHandleGetCallingUserId(); 5371 synchronized (this) { 5372 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5373 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 5374 if (ap.disableCamera != disabled) { 5375 ap.disableCamera = disabled; 5376 saveSettingsLocked(userHandle); 5377 } 5378 } 5379 // Tell the user manager that the restrictions have changed. 5380 pushUserRestrictions(userHandle); 5381 } 5382 5383 /** 5384 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 5385 * active admins. 5386 */ 5387 @Override 5388 public boolean getCameraDisabled(ComponentName who, int userHandle) { 5389 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 5390 } 5391 5392 private boolean getCameraDisabled(ComponentName who, int userHandle, 5393 boolean mergeDeviceOwnerRestriction) { 5394 if (!mHasFeature) { 5395 return false; 5396 } 5397 synchronized (this) { 5398 if (who != null) { 5399 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5400 return (admin != null) ? admin.disableCamera : false; 5401 } 5402 // First, see if DO has set it. If so, it's device-wide. 5403 if (mergeDeviceOwnerRestriction) { 5404 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5405 if (deviceOwner != null && deviceOwner.disableCamera) { 5406 return true; 5407 } 5408 } 5409 5410 // Then check each device admin on the user. 5411 DevicePolicyData policy = getUserData(userHandle); 5412 // Determine whether or not the device camera is disabled for any active admins. 5413 final int N = policy.mAdminList.size(); 5414 for (int i = 0; i < N; i++) { 5415 ActiveAdmin admin = policy.mAdminList.get(i); 5416 if (admin.disableCamera) { 5417 return true; 5418 } 5419 } 5420 return false; 5421 } 5422 } 5423 5424 @Override 5425 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 5426 if (!mHasFeature) { 5427 return; 5428 } 5429 Preconditions.checkNotNull(who, "ComponentName is null"); 5430 final int userHandle = mInjector.userHandleGetCallingUserId(); 5431 if (isManagedProfile(userHandle)) { 5432 if (parent) { 5433 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 5434 } else { 5435 which = which & PROFILE_KEYGUARD_FEATURES; 5436 } 5437 } 5438 synchronized (this) { 5439 ActiveAdmin ap = getActiveAdminForCallerLocked( 5440 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 5441 if (ap.disabledKeyguardFeatures != which) { 5442 ap.disabledKeyguardFeatures = which; 5443 saveSettingsLocked(userHandle); 5444 } 5445 } 5446 } 5447 5448 /** 5449 * Gets the disabled state for features in keyguard for the given admin, 5450 * or the aggregate of all active admins if who is null. 5451 */ 5452 @Override 5453 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 5454 if (!mHasFeature) { 5455 return 0; 5456 } 5457 enforceFullCrossUsersPermission(userHandle); 5458 final long ident = mInjector.binderClearCallingIdentity(); 5459 try { 5460 synchronized (this) { 5461 if (who != null) { 5462 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 5463 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 5464 } 5465 5466 final List<ActiveAdmin> admins; 5467 if (!parent && isManagedProfile(userHandle)) { 5468 // If we are being asked about a managed profile, just return keyguard features 5469 // disabled by admins in the profile. 5470 admins = getUserDataUnchecked(userHandle).mAdminList; 5471 } else { 5472 // Otherwise return those set by admins in the user and its profiles. 5473 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 5474 } 5475 5476 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 5477 final int N = admins.size(); 5478 for (int i = 0; i < N; i++) { 5479 ActiveAdmin admin = admins.get(i); 5480 int userId = admin.getUserHandle().getIdentifier(); 5481 boolean isRequestedUser = !parent && (userId == userHandle); 5482 if (isRequestedUser || !isManagedProfile(userId)) { 5483 // If we are being asked explicitly about this user 5484 // return all disabled features even if its a managed profile. 5485 which |= admin.disabledKeyguardFeatures; 5486 } else { 5487 // Otherwise a managed profile is only allowed to disable 5488 // some features on the parent user. 5489 which |= (admin.disabledKeyguardFeatures 5490 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 5491 } 5492 } 5493 return which; 5494 } 5495 } finally { 5496 mInjector.binderRestoreCallingIdentity(ident); 5497 } 5498 } 5499 5500 @Override 5501 public void setKeepUninstalledPackages(ComponentName who, List<String> packageList) { 5502 if (!mHasFeature) { 5503 return; 5504 } 5505 Preconditions.checkNotNull(who, "ComponentName is null"); 5506 Preconditions.checkNotNull(packageList, "packageList is null"); 5507 final int userHandle = UserHandle.getCallingUserId(); 5508 synchronized (this) { 5509 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5510 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5511 admin.keepUninstalledPackages = packageList; 5512 saveSettingsLocked(userHandle); 5513 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 5514 } 5515 } 5516 5517 @Override 5518 public List<String> getKeepUninstalledPackages(ComponentName who) { 5519 Preconditions.checkNotNull(who, "ComponentName is null"); 5520 if (!mHasFeature) { 5521 return null; 5522 } 5523 // TODO In split system user mode, allow apps on user 0 to query the list 5524 synchronized (this) { 5525 // Check if this is the device owner who is calling 5526 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5527 return getKeepUninstalledPackagesLocked(); 5528 } 5529 } 5530 5531 private List<String> getKeepUninstalledPackagesLocked() { 5532 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5533 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 5534 } 5535 5536 @Override 5537 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 5538 if (!mHasFeature) { 5539 return false; 5540 } 5541 if (admin == null 5542 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 5543 throw new IllegalArgumentException("Invalid component " + admin 5544 + " for device owner"); 5545 } 5546 synchronized (this) { 5547 enforceCanSetDeviceOwnerLocked(userId); 5548 if (getActiveAdminUncheckedLocked(admin, userId) == null) { 5549 throw new IllegalArgumentException("Not active admin: " + admin); 5550 } 5551 5552 // Shutting down backup manager service permanently. 5553 long ident = mInjector.binderClearCallingIdentity(); 5554 try { 5555 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, false); 5556 } catch (RemoteException e) { 5557 throw new IllegalStateException("Failed deactivating backup service.", e); 5558 } finally { 5559 mInjector.binderRestoreCallingIdentity(ident); 5560 } 5561 5562 mOwners.setDeviceOwner(admin, ownerName, userId); 5563 mOwners.writeDeviceOwner(); 5564 updateDeviceOwnerLocked(); 5565 setDeviceOwnerSystemPropertyLocked(); 5566 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 5567 5568 ident = mInjector.binderClearCallingIdentity(); 5569 try { 5570 // TODO Send to system too? 5571 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 5572 } finally { 5573 mInjector.binderRestoreCallingIdentity(ident); 5574 } 5575 return true; 5576 } 5577 } 5578 5579 public boolean isDeviceOwner(ComponentName who, int userId) { 5580 synchronized (this) { 5581 return mOwners.hasDeviceOwner() 5582 && mOwners.getDeviceOwnerUserId() == userId 5583 && mOwners.getDeviceOwnerComponent().equals(who); 5584 } 5585 } 5586 5587 public boolean isProfileOwner(ComponentName who, int userId) { 5588 final ComponentName profileOwner = getProfileOwner(userId); 5589 return who != null && who.equals(profileOwner); 5590 } 5591 5592 @Override 5593 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 5594 if (!mHasFeature) { 5595 return null; 5596 } 5597 if (!callingUserOnly) { 5598 enforceManageUsers(); 5599 } 5600 synchronized (this) { 5601 if (!mOwners.hasDeviceOwner()) { 5602 return null; 5603 } 5604 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 5605 mOwners.getDeviceOwnerUserId()) { 5606 return null; 5607 } 5608 return mOwners.getDeviceOwnerComponent(); 5609 } 5610 } 5611 5612 @Override 5613 public int getDeviceOwnerUserId() { 5614 if (!mHasFeature) { 5615 return UserHandle.USER_NULL; 5616 } 5617 enforceManageUsers(); 5618 synchronized (this) { 5619 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 5620 } 5621 } 5622 5623 /** 5624 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 5625 * MANAGE_USERS. 5626 */ 5627 @Override 5628 public String getDeviceOwnerName() { 5629 if (!mHasFeature) { 5630 return null; 5631 } 5632 enforceManageUsers(); 5633 synchronized (this) { 5634 if (!mOwners.hasDeviceOwner()) { 5635 return null; 5636 } 5637 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 5638 // Should setDeviceOwner/ProfileOwner still take a name? 5639 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 5640 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 5641 } 5642 } 5643 5644 // Returns the active device owner or null if there is no device owner. 5645 @VisibleForTesting 5646 ActiveAdmin getDeviceOwnerAdminLocked() { 5647 ComponentName component = mOwners.getDeviceOwnerComponent(); 5648 if (component == null) { 5649 return null; 5650 } 5651 5652 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 5653 final int n = policy.mAdminList.size(); 5654 for (int i = 0; i < n; i++) { 5655 ActiveAdmin admin = policy.mAdminList.get(i); 5656 if (component.equals(admin.info.getComponent())) { 5657 return admin; 5658 } 5659 } 5660 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 5661 return null; 5662 } 5663 5664 @Override 5665 public void clearDeviceOwner(String packageName) { 5666 Preconditions.checkNotNull(packageName, "packageName is null"); 5667 final int callingUid = mInjector.binderGetCallingUid(); 5668 try { 5669 int uid = mContext.getPackageManager().getPackageUidAsUser(packageName, 5670 UserHandle.getUserId(callingUid)); 5671 if (uid != callingUid) { 5672 throw new SecurityException("Invalid packageName"); 5673 } 5674 } catch (NameNotFoundException e) { 5675 throw new SecurityException(e); 5676 } 5677 synchronized (this) { 5678 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 5679 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 5680 if (!mOwners.hasDeviceOwner() 5681 || !deviceOwnerComponent.getPackageName().equals(packageName) 5682 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 5683 throw new SecurityException( 5684 "clearDeviceOwner can only be called by the device owner"); 5685 } 5686 enforceUserUnlocked(deviceOwnerUserId); 5687 5688 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 5689 if (admin != null) { 5690 admin.disableCamera = false; 5691 admin.userRestrictions = null; 5692 admin.forceEphemeralUsers = false; 5693 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 5694 } 5695 clearUserPoliciesLocked(deviceOwnerUserId); 5696 5697 mOwners.clearDeviceOwner(); 5698 mOwners.writeDeviceOwner(); 5699 updateDeviceOwnerLocked(); 5700 disableSecurityLoggingIfNotCompliant(); 5701 // Reactivate backup service. 5702 long ident = mInjector.binderClearCallingIdentity(); 5703 try { 5704 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 5705 5706 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 5707 } catch (RemoteException e) { 5708 throw new IllegalStateException("Failed reactivating backup service.", e); 5709 } finally { 5710 mInjector.binderRestoreCallingIdentity(ident); 5711 } 5712 } 5713 } 5714 5715 @Override 5716 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 5717 if (!mHasFeature) { 5718 return false; 5719 } 5720 if (who == null 5721 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 5722 throw new IllegalArgumentException("Component " + who 5723 + " not installed for userId:" + userHandle); 5724 } 5725 synchronized (this) { 5726 enforceCanSetProfileOwnerLocked(userHandle); 5727 5728 if (getActiveAdminUncheckedLocked(who, userHandle) == null) { 5729 throw new IllegalArgumentException("Not active admin: " + who); 5730 } 5731 5732 mOwners.setProfileOwner(who, ownerName, userHandle); 5733 mOwners.writeProfileOwner(userHandle); 5734 return true; 5735 } 5736 } 5737 5738 @Override 5739 public void clearProfileOwner(ComponentName who) { 5740 if (!mHasFeature) { 5741 return; 5742 } 5743 final UserHandle callingUser = mInjector.binderGetCallingUserHandle(); 5744 final int userId = callingUser.getIdentifier(); 5745 enforceNotManagedProfile(userId, "clear profile owner"); 5746 enforceUserUnlocked(userId); 5747 // Check if this is the profile owner who is calling 5748 final ActiveAdmin admin = 5749 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5750 synchronized (this) { 5751 admin.disableCamera = false; 5752 admin.userRestrictions = null; 5753 clearUserPoliciesLocked(userId); 5754 mOwners.removeProfileOwner(userId); 5755 mOwners.writeProfileOwner(userId); 5756 5757 final long ident = mInjector.binderClearCallingIdentity(); 5758 try { 5759 removeActiveAdminLocked(who, userId); 5760 } finally { 5761 mInjector.binderRestoreCallingIdentity(ident); 5762 } 5763 } 5764 } 5765 5766 @Override 5767 public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) { 5768 Preconditions.checkNotNull(who, "ComponentName is null"); 5769 if (!mHasFeature) { 5770 return; 5771 } 5772 5773 synchronized (this) { 5774 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5775 long token = mInjector.binderClearCallingIdentity(); 5776 try { 5777 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null); 5778 } finally { 5779 mInjector.binderRestoreCallingIdentity(token); 5780 } 5781 } 5782 } 5783 5784 @Override 5785 public CharSequence getDeviceOwnerLockScreenInfo() { 5786 return mLockPatternUtils.getDeviceOwnerInfo(); 5787 } 5788 5789 private void clearUserPoliciesLocked(int userId) { 5790 // Reset some of the user-specific policies 5791 DevicePolicyData policy = getUserData(userId); 5792 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 5793 policy.mDelegatedCertInstallerPackage = null; 5794 policy.mApplicationRestrictionsManagingPackage = null; 5795 policy.mStatusBarDisabled = false; 5796 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 5797 saveSettingsLocked(userId); 5798 5799 final long ident = mInjector.binderClearCallingIdentity(); 5800 try { 5801 mIPackageManager.updatePermissionFlagsForAllApps( 5802 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 5803 0 /* flagValues */, userId); 5804 pushUserRestrictions(userId); 5805 } catch (RemoteException re) { 5806 } finally { 5807 mInjector.binderRestoreCallingIdentity(ident); 5808 } 5809 } 5810 5811 @Override 5812 public boolean hasUserSetupCompleted() { 5813 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 5814 } 5815 5816 private boolean hasUserSetupCompleted(int userHandle) { 5817 if (!mHasFeature) { 5818 return true; 5819 } 5820 return getUserData(userHandle).mUserSetupComplete; 5821 } 5822 5823 @Override 5824 public int getUserProvisioningState() { 5825 if (!mHasFeature) { 5826 return DevicePolicyManager.STATE_USER_UNMANAGED; 5827 } 5828 int userHandle = mInjector.userHandleGetCallingUserId(); 5829 return getUserProvisioningState(userHandle); 5830 } 5831 5832 private int getUserProvisioningState(int userHandle) { 5833 return getUserData(userHandle).mUserProvisioningState; 5834 } 5835 5836 @Override 5837 public void setUserProvisioningState(int newState, int userHandle) { 5838 if (!mHasFeature) { 5839 return; 5840 } 5841 5842 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 5843 && getManagedUserId(userHandle) == -1) { 5844 // No managed device, user or profile, so setting provisioning state makes no sense. 5845 throw new IllegalStateException("Not allowed to change provisioning state unless a " 5846 + "device or profile owner is set."); 5847 } 5848 5849 synchronized (this) { 5850 boolean transitionCheckNeeded = true; 5851 5852 // Calling identity/permission checks. 5853 final int callingUid = mInjector.binderGetCallingUid(); 5854 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 5855 // ADB shell can only move directly from un-managed to finalized as part of directly 5856 // setting profile-owner or device-owner. 5857 if (getUserProvisioningState(userHandle) != 5858 DevicePolicyManager.STATE_USER_UNMANAGED 5859 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 5860 throw new IllegalStateException("Not allowed to change provisioning state " 5861 + "unless current provisioning state is unmanaged, and new state is " 5862 + "finalized."); 5863 } 5864 transitionCheckNeeded = false; 5865 } else { 5866 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 5867 enforceCanManageProfileAndDeviceOwners(); 5868 } 5869 5870 final DevicePolicyData policyData = getUserData(userHandle); 5871 if (transitionCheckNeeded) { 5872 // Optional state transition check for non-ADB case. 5873 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 5874 } 5875 policyData.mUserProvisioningState = newState; 5876 saveSettingsLocked(userHandle); 5877 } 5878 } 5879 5880 private void checkUserProvisioningStateTransition(int currentState, int newState) { 5881 // Valid transitions for normal use-cases. 5882 switch (currentState) { 5883 case DevicePolicyManager.STATE_USER_UNMANAGED: 5884 // Can move to any state from unmanaged (except itself as an edge case).. 5885 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 5886 return; 5887 } 5888 break; 5889 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 5890 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 5891 // Can only move to finalized from these states. 5892 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 5893 return; 5894 } 5895 break; 5896 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 5897 // Current user has a managed-profile, but current user is not managed, so 5898 // rather than moving to finalized state, go back to unmanaged once 5899 // profile provisioning is complete. 5900 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 5901 return; 5902 } 5903 break; 5904 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 5905 // Cannot transition out of finalized. 5906 break; 5907 } 5908 5909 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 5910 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 5911 + "from state [" + currentState + "]"); 5912 } 5913 5914 @Override 5915 public void setProfileEnabled(ComponentName who) { 5916 if (!mHasFeature) { 5917 return; 5918 } 5919 Preconditions.checkNotNull(who, "ComponentName is null"); 5920 synchronized (this) { 5921 // Check if this is the profile owner who is calling 5922 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5923 final int userId = UserHandle.getCallingUserId(); 5924 enforceManagedProfile(userId, "enable the profile"); 5925 5926 long id = mInjector.binderClearCallingIdentity(); 5927 try { 5928 mUserManager.setUserEnabled(userId); 5929 UserInfo parent = mUserManager.getProfileParent(userId); 5930 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 5931 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 5932 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 5933 Intent.FLAG_RECEIVER_FOREGROUND); 5934 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 5935 } finally { 5936 mInjector.binderRestoreCallingIdentity(id); 5937 } 5938 } 5939 } 5940 5941 @Override 5942 public void setProfileName(ComponentName who, String profileName) { 5943 Preconditions.checkNotNull(who, "ComponentName is null"); 5944 int userId = UserHandle.getCallingUserId(); 5945 // Check if this is the profile owner (includes device owner). 5946 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5947 5948 long id = mInjector.binderClearCallingIdentity(); 5949 try { 5950 mUserManager.setUserName(userId, profileName); 5951 } finally { 5952 mInjector.binderRestoreCallingIdentity(id); 5953 } 5954 } 5955 5956 @Override 5957 public ComponentName getProfileOwner(int userHandle) { 5958 if (!mHasFeature) { 5959 return null; 5960 } 5961 5962 synchronized (this) { 5963 return mOwners.getProfileOwnerComponent(userHandle); 5964 } 5965 } 5966 5967 // Returns the active profile owner for this user or null if the current user has no 5968 // profile owner. 5969 @VisibleForTesting 5970 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 5971 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 5972 if (profileOwner == null) { 5973 return null; 5974 } 5975 DevicePolicyData policy = getUserData(userHandle); 5976 final int n = policy.mAdminList.size(); 5977 for (int i = 0; i < n; i++) { 5978 ActiveAdmin admin = policy.mAdminList.get(i); 5979 if (profileOwner.equals(admin.info.getComponent())) { 5980 return admin; 5981 } 5982 } 5983 return null; 5984 } 5985 5986 @Override 5987 public String getProfileOwnerName(int userHandle) { 5988 if (!mHasFeature) { 5989 return null; 5990 } 5991 enforceManageUsers(); 5992 ComponentName profileOwner = getProfileOwner(userHandle); 5993 if (profileOwner == null) { 5994 return null; 5995 } 5996 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 5997 } 5998 5999 /** 6000 * Canonical name for a given package. 6001 */ 6002 private String getApplicationLabel(String packageName, int userHandle) { 6003 long token = mInjector.binderClearCallingIdentity(); 6004 try { 6005 final Context userContext; 6006 try { 6007 UserHandle handle = new UserHandle(userHandle); 6008 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 6009 } catch (PackageManager.NameNotFoundException nnfe) { 6010 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 6011 return null; 6012 } 6013 ApplicationInfo appInfo = userContext.getApplicationInfo(); 6014 CharSequence result = null; 6015 if (appInfo != null) { 6016 PackageManager pm = userContext.getPackageManager(); 6017 result = pm.getApplicationLabel(appInfo); 6018 } 6019 return result != null ? result.toString() : null; 6020 } finally { 6021 mInjector.binderRestoreCallingIdentity(token); 6022 } 6023 } 6024 6025 /** 6026 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 6027 * permission. 6028 * The profile owner can only be set before the user setup phase has completed, 6029 * except for: 6030 * - SYSTEM_UID 6031 * - adb if there are not accounts. 6032 */ 6033 private void enforceCanSetProfileOwnerLocked(int userHandle) { 6034 UserInfo info = getUserInfo(userHandle); 6035 if (info == null) { 6036 // User doesn't exist. 6037 throw new IllegalArgumentException( 6038 "Attempted to set profile owner for invalid userId: " + userHandle); 6039 } 6040 if (info.isGuest()) { 6041 throw new IllegalStateException("Cannot set a profile owner on a guest"); 6042 } 6043 if (mOwners.hasProfileOwner(userHandle)) { 6044 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 6045 + "is already set."); 6046 } 6047 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 6048 throw new IllegalStateException("Trying to set the profile owner, but the user " 6049 + "already has a device owner."); 6050 } 6051 int callingUid = mInjector.binderGetCallingUid(); 6052 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 6053 if (hasUserSetupCompleted(userHandle) && 6054 AccountManager.get(mContext).getAccountsAsUser(userHandle).length > 0) { 6055 throw new IllegalStateException("Not allowed to set the profile owner because " 6056 + "there are already some accounts on the profile"); 6057 } 6058 return; 6059 } 6060 enforceCanManageProfileAndDeviceOwners(); 6061 if (hasUserSetupCompleted(userHandle) && !isCallerWithSystemUid()) { 6062 throw new IllegalStateException("Cannot set the profile owner on a user which is " 6063 + "already set-up"); 6064 } 6065 } 6066 6067 /** 6068 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 6069 * permission. 6070 */ 6071 private void enforceCanSetDeviceOwnerLocked(int userId) { 6072 int callingUid = mInjector.binderGetCallingUid(); 6073 boolean isAdb = callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID; 6074 if (!isAdb) { 6075 enforceCanManageProfileAndDeviceOwners(); 6076 } 6077 6078 final int code = checkSetDeviceOwnerPreCondition(userId, isAdb); 6079 switch (code) { 6080 case CODE_OK: 6081 return; 6082 case CODE_HAS_DEVICE_OWNER: 6083 throw new IllegalStateException( 6084 "Trying to set the device owner, but device owner is already set."); 6085 case CODE_USER_HAS_PROFILE_OWNER: 6086 throw new IllegalStateException("Trying to set the device owner, but the user " 6087 + "already has a profile owner."); 6088 case CODE_USER_NOT_RUNNING: 6089 throw new IllegalStateException("User not running: " + userId); 6090 case CODE_NOT_SYSTEM_USER: 6091 throw new IllegalStateException("User is not system user"); 6092 case CODE_USER_SETUP_COMPLETED: 6093 throw new IllegalStateException( 6094 "Cannot set the device owner if the device is already set-up"); 6095 case CODE_NONSYSTEM_USER_EXISTS: 6096 throw new IllegalStateException("Not allowed to set the device owner because there " 6097 + "are already several users on the device"); 6098 case CODE_ACCOUNTS_NOT_EMPTY: 6099 throw new IllegalStateException("Not allowed to set the device owner because there " 6100 + "are already some accounts on the device"); 6101 default: 6102 throw new IllegalStateException("Unknown @DeviceOwnerPreConditionCode " + code); 6103 } 6104 } 6105 6106 private void enforceUserUnlocked(int userId) { 6107 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 6108 "User must be running and unlocked"); 6109 } 6110 6111 private void enforceManageUsers() { 6112 final int callingUid = mInjector.binderGetCallingUid(); 6113 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 6114 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 6115 } 6116 } 6117 6118 private void enforceFullCrossUsersPermission(int userHandle) { 6119 enforceSystemUserOrPermission(userHandle, 6120 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 6121 } 6122 6123 private void enforceCrossUsersPermission(int userHandle) { 6124 enforceSystemUserOrPermission(userHandle, 6125 android.Manifest.permission.INTERACT_ACROSS_USERS); 6126 } 6127 6128 private void enforceSystemUserOrPermission(int userHandle, String permission) { 6129 if (userHandle < 0) { 6130 throw new IllegalArgumentException("Invalid userId " + userHandle); 6131 } 6132 final int callingUid = mInjector.binderGetCallingUid(); 6133 if (userHandle == UserHandle.getUserId(callingUid)) { 6134 return; 6135 } 6136 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 6137 mContext.enforceCallingOrSelfPermission(permission, 6138 "Must be system or have " + permission + " permission"); 6139 } 6140 } 6141 6142 private void enforceManagedProfile(int userHandle, String message) { 6143 if(!isManagedProfile(userHandle)) { 6144 throw new SecurityException("You can not " + message + " outside a managed profile."); 6145 } 6146 } 6147 6148 private void enforceNotManagedProfile(int userHandle, String message) { 6149 if(isManagedProfile(userHandle)) { 6150 throw new SecurityException("You can not " + message + " for a managed profile."); 6151 } 6152 } 6153 6154 private void ensureCallerPackage(@Nullable String packageName) { 6155 if (packageName == null) { 6156 Preconditions.checkState(isCallerWithSystemUid(), 6157 "Only caller can omit package name"); 6158 } else { 6159 final int callingUid = mInjector.binderGetCallingUid(); 6160 final int userId = mInjector.userHandleGetCallingUserId(); 6161 try { 6162 final ApplicationInfo ai = mIPackageManager.getApplicationInfo( 6163 packageName, 0, userId); 6164 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name"); 6165 } catch (RemoteException e) { 6166 // Shouldn't happen 6167 } 6168 } 6169 } 6170 6171 private boolean isCallerWithSystemUid() { 6172 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 6173 } 6174 6175 private int getProfileParentId(int userHandle) { 6176 final long ident = mInjector.binderClearCallingIdentity(); 6177 try { 6178 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 6179 return parentUser != null ? parentUser.id : userHandle; 6180 } finally { 6181 mInjector.binderRestoreCallingIdentity(ident); 6182 } 6183 } 6184 6185 private int getCredentialOwner(int userHandle, boolean parent) { 6186 final long ident = mInjector.binderClearCallingIdentity(); 6187 try { 6188 if (parent) { 6189 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 6190 if (parentProfile != null) { 6191 userHandle = parentProfile.id; 6192 } 6193 } 6194 return mUserManager.getCredentialOwnerProfile(userHandle); 6195 } finally { 6196 mInjector.binderRestoreCallingIdentity(ident); 6197 } 6198 } 6199 6200 private boolean isManagedProfile(int userHandle) { 6201 return getUserInfo(userHandle).isManagedProfile(); 6202 } 6203 6204 private void enableIfNecessary(String packageName, int userId) { 6205 try { 6206 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 6207 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 6208 userId); 6209 if (ai.enabledSetting 6210 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 6211 mIPackageManager.setApplicationEnabledSetting(packageName, 6212 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 6213 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 6214 } 6215 } catch (RemoteException e) { 6216 } 6217 } 6218 6219 @Override 6220 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 6221 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 6222 != PackageManager.PERMISSION_GRANTED) { 6223 6224 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 6225 + mInjector.binderGetCallingPid() 6226 + ", uid=" + mInjector.binderGetCallingUid()); 6227 return; 6228 } 6229 6230 synchronized (this) { 6231 pw.println("Current Device Policy Manager state:"); 6232 mOwners.dump(" ", pw); 6233 int userCount = mUserData.size(); 6234 for (int u = 0; u < userCount; u++) { 6235 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 6236 pw.println(); 6237 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 6238 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 6239 final int N = policy.mAdminList.size(); 6240 for (int i=0; i<N; i++) { 6241 ActiveAdmin ap = policy.mAdminList.get(i); 6242 if (ap != null) { 6243 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 6244 pw.println(":"); 6245 ap.dump(" ", pw); 6246 } 6247 } 6248 if (!policy.mRemovingAdmins.isEmpty()) { 6249 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 6250 + policy.mRemovingAdmins); 6251 } 6252 6253 pw.println(" "); 6254 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 6255 } 6256 pw.println(); 6257 pw.println("Encryption Status: " + getEncryptionStatusName(getEncryptionStatus())); 6258 } 6259 } 6260 6261 private String getEncryptionStatusName(int encryptionStatus) { 6262 switch (encryptionStatus) { 6263 case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE: 6264 return "inactive"; 6265 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: 6266 return "block default key"; 6267 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE: 6268 return "block"; 6269 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER: 6270 return "per-user"; 6271 case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED: 6272 return "unsupported"; 6273 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING: 6274 return "activating"; 6275 default: 6276 return "unknown"; 6277 } 6278 } 6279 6280 @Override 6281 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 6282 ComponentName activity) { 6283 Preconditions.checkNotNull(who, "ComponentName is null"); 6284 final int userHandle = UserHandle.getCallingUserId(); 6285 synchronized (this) { 6286 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6287 6288 long id = mInjector.binderClearCallingIdentity(); 6289 try { 6290 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 6291 } catch (RemoteException re) { 6292 // Shouldn't happen 6293 } finally { 6294 mInjector.binderRestoreCallingIdentity(id); 6295 } 6296 } 6297 } 6298 6299 @Override 6300 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 6301 Preconditions.checkNotNull(who, "ComponentName is null"); 6302 final int userHandle = UserHandle.getCallingUserId(); 6303 synchronized (this) { 6304 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6305 6306 long id = mInjector.binderClearCallingIdentity(); 6307 try { 6308 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 6309 } catch (RemoteException re) { 6310 // Shouldn't happen 6311 } finally { 6312 mInjector.binderRestoreCallingIdentity(id); 6313 } 6314 } 6315 } 6316 6317 @Override 6318 public boolean setApplicationRestrictionsManagingPackage(ComponentName admin, 6319 String packageName) { 6320 Preconditions.checkNotNull(admin, "ComponentName is null"); 6321 6322 final int userHandle = mInjector.userHandleGetCallingUserId(); 6323 synchronized (this) { 6324 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6325 if (packageName != null && !isPackageInstalledForUser(packageName, userHandle)) { 6326 return false; 6327 } 6328 DevicePolicyData policy = getUserData(userHandle); 6329 policy.mApplicationRestrictionsManagingPackage = packageName; 6330 saveSettingsLocked(userHandle); 6331 return true; 6332 } 6333 } 6334 6335 @Override 6336 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 6337 Preconditions.checkNotNull(admin, "ComponentName is null"); 6338 6339 final int userHandle = mInjector.userHandleGetCallingUserId(); 6340 synchronized (this) { 6341 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6342 DevicePolicyData policy = getUserData(userHandle); 6343 return policy.mApplicationRestrictionsManagingPackage; 6344 } 6345 } 6346 6347 @Override 6348 public boolean isCallerApplicationRestrictionsManagingPackage() { 6349 final int callingUid = mInjector.binderGetCallingUid(); 6350 final int userHandle = UserHandle.getUserId(callingUid); 6351 synchronized (this) { 6352 final DevicePolicyData policy = getUserData(userHandle); 6353 if (policy.mApplicationRestrictionsManagingPackage == null) { 6354 return false; 6355 } 6356 6357 try { 6358 int uid = mContext.getPackageManager().getPackageUidAsUser( 6359 policy.mApplicationRestrictionsManagingPackage, userHandle); 6360 return uid == callingUid; 6361 } catch (NameNotFoundException e) { 6362 return false; 6363 } 6364 } 6365 } 6366 6367 private void enforceCanManageApplicationRestrictions(ComponentName who) { 6368 if (who != null) { 6369 synchronized (this) { 6370 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6371 } 6372 } else if (!isCallerApplicationRestrictionsManagingPackage()) { 6373 throw new SecurityException( 6374 "No admin component given, and caller cannot manage application restrictions " 6375 + "for other apps."); 6376 } 6377 } 6378 6379 @Override 6380 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 6381 enforceCanManageApplicationRestrictions(who); 6382 6383 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 6384 final long id = mInjector.binderClearCallingIdentity(); 6385 try { 6386 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 6387 } finally { 6388 mInjector.binderRestoreCallingIdentity(id); 6389 } 6390 } 6391 6392 @Override 6393 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 6394 PersistableBundle args) { 6395 if (!mHasFeature) { 6396 return; 6397 } 6398 Preconditions.checkNotNull(admin, "admin is null"); 6399 Preconditions.checkNotNull(agent, "agent is null"); 6400 final int userHandle = UserHandle.getCallingUserId(); 6401 enforceNotManagedProfile(userHandle, "set trust agent configuration"); 6402 synchronized (this) { 6403 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 6404 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES); 6405 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 6406 saveSettingsLocked(userHandle); 6407 } 6408 } 6409 6410 @Override 6411 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 6412 ComponentName agent, int userHandle) { 6413 if (!mHasFeature) { 6414 return null; 6415 } 6416 Preconditions.checkNotNull(agent, "agent null"); 6417 enforceFullCrossUsersPermission(userHandle); 6418 6419 synchronized (this) { 6420 final String componentName = agent.flattenToString(); 6421 if (admin != null) { 6422 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle); 6423 if (ap == null) return null; 6424 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 6425 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 6426 List<PersistableBundle> result = new ArrayList<PersistableBundle>(); 6427 result.add(trustAgentInfo.options); 6428 return result; 6429 } 6430 6431 // Return strictest policy for this user and profiles that are visible from this user. 6432 final List<UserInfo> profiles = mUserManager.getProfiles(userHandle); 6433 List<PersistableBundle> result = null; 6434 6435 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 6436 // of the options. If any admin doesn't have options, discard options for the rest 6437 // and return null. 6438 boolean allAdminsHaveOptions = true; 6439 for (UserInfo userInfo : profiles) { 6440 DevicePolicyData policy = getUserDataUnchecked(userInfo.id); 6441 final int N = policy.mAdminList.size(); 6442 for (int i=0; i < N; i++) { 6443 final ActiveAdmin active = policy.mAdminList.get(i); 6444 final boolean disablesTrust = (active.disabledKeyguardFeatures 6445 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 6446 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 6447 if (info != null && info.options != null && !info.options.isEmpty()) { 6448 if (disablesTrust) { 6449 if (result == null) { 6450 result = new ArrayList<PersistableBundle>(); 6451 } 6452 result.add(info.options); 6453 } else { 6454 Log.w(LOG_TAG, "Ignoring admin " + active.info 6455 + " because it has trust options but doesn't declare " 6456 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 6457 } 6458 } else if (disablesTrust) { 6459 allAdminsHaveOptions = false; 6460 break; 6461 } 6462 } 6463 } 6464 return allAdminsHaveOptions ? result : null; 6465 } 6466 } 6467 6468 @Override 6469 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 6470 Preconditions.checkNotNull(who, "ComponentName is null"); 6471 synchronized (this) { 6472 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6473 6474 int userHandle = UserHandle.getCallingUserId(); 6475 DevicePolicyData userData = getUserData(userHandle); 6476 userData.mRestrictionsProvider = permissionProvider; 6477 saveSettingsLocked(userHandle); 6478 } 6479 } 6480 6481 @Override 6482 public ComponentName getRestrictionsProvider(int userHandle) { 6483 synchronized (this) { 6484 if (!isCallerWithSystemUid()) { 6485 throw new SecurityException("Only the system can query the permission provider"); 6486 } 6487 DevicePolicyData userData = getUserData(userHandle); 6488 return userData != null ? userData.mRestrictionsProvider : null; 6489 } 6490 } 6491 6492 @Override 6493 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 6494 Preconditions.checkNotNull(who, "ComponentName is null"); 6495 int callingUserId = UserHandle.getCallingUserId(); 6496 synchronized (this) { 6497 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6498 6499 long id = mInjector.binderClearCallingIdentity(); 6500 try { 6501 UserInfo parent = mUserManager.getProfileParent(callingUserId); 6502 if (parent == null) { 6503 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 6504 + "parent"); 6505 return; 6506 } 6507 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 6508 mIPackageManager.addCrossProfileIntentFilter( 6509 filter, who.getPackageName(), callingUserId, parent.id, 0); 6510 } 6511 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 6512 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 6513 parent.id, callingUserId, 0); 6514 } 6515 } catch (RemoteException re) { 6516 // Shouldn't happen 6517 } finally { 6518 mInjector.binderRestoreCallingIdentity(id); 6519 } 6520 } 6521 } 6522 6523 @Override 6524 public void clearCrossProfileIntentFilters(ComponentName who) { 6525 Preconditions.checkNotNull(who, "ComponentName is null"); 6526 int callingUserId = UserHandle.getCallingUserId(); 6527 synchronized (this) { 6528 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6529 long id = mInjector.binderClearCallingIdentity(); 6530 try { 6531 UserInfo parent = mUserManager.getProfileParent(callingUserId); 6532 if (parent == null) { 6533 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 6534 + "parent"); 6535 return; 6536 } 6537 // Removing those that go from the managed profile to the parent. 6538 mIPackageManager.clearCrossProfileIntentFilters( 6539 callingUserId, who.getPackageName()); 6540 // And those that go from the parent to the managed profile. 6541 // If we want to support multiple managed profiles, we will have to only remove 6542 // those that have callingUserId as their target. 6543 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 6544 } catch (RemoteException re) { 6545 // Shouldn't happen 6546 } finally { 6547 mInjector.binderRestoreCallingIdentity(id); 6548 } 6549 } 6550 } 6551 6552 /** 6553 * @return true if all packages in enabledPackages are either in the list 6554 * permittedList or are a system app. 6555 */ 6556 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 6557 List<String> permittedList, int userIdToCheck) { 6558 long id = mInjector.binderClearCallingIdentity(); 6559 try { 6560 // If we have an enabled packages list for a managed profile the packages 6561 // we should check are installed for the parent user. 6562 UserInfo user = getUserInfo(userIdToCheck); 6563 if (user.isManagedProfile()) { 6564 userIdToCheck = user.profileGroupId; 6565 } 6566 6567 for (String enabledPackage : enabledPackages) { 6568 boolean systemService = false; 6569 try { 6570 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 6571 enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 6572 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 6573 } catch (RemoteException e) { 6574 Log.i(LOG_TAG, "Can't talk to package managed", e); 6575 } 6576 if (!systemService && !permittedList.contains(enabledPackage)) { 6577 return false; 6578 } 6579 } 6580 } finally { 6581 mInjector.binderRestoreCallingIdentity(id); 6582 } 6583 return true; 6584 } 6585 6586 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 6587 // Not using AccessibilityManager.getInstance because that guesses 6588 // at the user you require based on callingUid and caches for a given 6589 // process. 6590 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 6591 IAccessibilityManager service = iBinder == null 6592 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 6593 return new AccessibilityManager(mContext, service, userId); 6594 } 6595 6596 @Override 6597 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 6598 if (!mHasFeature) { 6599 return false; 6600 } 6601 Preconditions.checkNotNull(who, "ComponentName is null"); 6602 6603 if (packageList != null) { 6604 int userId = UserHandle.getCallingUserId(); 6605 List<AccessibilityServiceInfo> enabledServices = null; 6606 long id = mInjector.binderClearCallingIdentity(); 6607 try { 6608 UserInfo user = getUserInfo(userId); 6609 if (user.isManagedProfile()) { 6610 userId = user.profileGroupId; 6611 } 6612 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 6613 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 6614 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 6615 } finally { 6616 mInjector.binderRestoreCallingIdentity(id); 6617 } 6618 6619 if (enabledServices != null) { 6620 List<String> enabledPackages = new ArrayList<String>(); 6621 for (AccessibilityServiceInfo service : enabledServices) { 6622 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 6623 } 6624 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 6625 userId)) { 6626 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 6627 + "because it contains already enabled accesibility services."); 6628 return false; 6629 } 6630 } 6631 } 6632 6633 synchronized (this) { 6634 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6635 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6636 admin.permittedAccessiblityServices = packageList; 6637 saveSettingsLocked(UserHandle.getCallingUserId()); 6638 } 6639 return true; 6640 } 6641 6642 @Override 6643 public List getPermittedAccessibilityServices(ComponentName who) { 6644 if (!mHasFeature) { 6645 return null; 6646 } 6647 Preconditions.checkNotNull(who, "ComponentName is null"); 6648 6649 synchronized (this) { 6650 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6651 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6652 return admin.permittedAccessiblityServices; 6653 } 6654 } 6655 6656 @Override 6657 public List getPermittedAccessibilityServicesForUser(int userId) { 6658 if (!mHasFeature) { 6659 return null; 6660 } 6661 synchronized (this) { 6662 List<String> result = null; 6663 // If we have multiple profiles we return the intersection of the 6664 // permitted lists. This can happen in cases where we have a device 6665 // and profile owner. 6666 List<UserInfo> profiles = mUserManager.getProfiles(userId); 6667 final int PROFILES_SIZE = profiles.size(); 6668 for (int i = 0; i < PROFILES_SIZE; ++i) { 6669 // Just loop though all admins, only device or profiles 6670 // owners can have permitted lists set. 6671 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 6672 final int N = policy.mAdminList.size(); 6673 for (int j = 0; j < N; j++) { 6674 ActiveAdmin admin = policy.mAdminList.get(j); 6675 List<String> fromAdmin = admin.permittedAccessiblityServices; 6676 if (fromAdmin != null) { 6677 if (result == null) { 6678 result = new ArrayList<String>(fromAdmin); 6679 } else { 6680 result.retainAll(fromAdmin); 6681 } 6682 } 6683 } 6684 } 6685 6686 // If we have a permitted list add all system accessibility services. 6687 if (result != null) { 6688 long id = mInjector.binderClearCallingIdentity(); 6689 try { 6690 UserInfo user = getUserInfo(userId); 6691 if (user.isManagedProfile()) { 6692 userId = user.profileGroupId; 6693 } 6694 AccessibilityManager accessibilityManager = 6695 getAccessibilityManagerForUser(userId); 6696 List<AccessibilityServiceInfo> installedServices = 6697 accessibilityManager.getInstalledAccessibilityServiceList(); 6698 6699 if (installedServices != null) { 6700 for (AccessibilityServiceInfo service : installedServices) { 6701 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 6702 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 6703 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 6704 result.add(serviceInfo.packageName); 6705 } 6706 } 6707 } 6708 } finally { 6709 mInjector.binderRestoreCallingIdentity(id); 6710 } 6711 } 6712 6713 return result; 6714 } 6715 } 6716 6717 @Override 6718 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 6719 int userHandle) { 6720 if (!mHasFeature) { 6721 return true; 6722 } 6723 Preconditions.checkNotNull(who, "ComponentName is null"); 6724 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 6725 if (!isCallerWithSystemUid()){ 6726 throw new SecurityException( 6727 "Only the system can query if an accessibility service is disabled by admin"); 6728 } 6729 synchronized (this) { 6730 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6731 if (admin == null) { 6732 return false; 6733 } 6734 if (admin.permittedAccessiblityServices == null) { 6735 return true; 6736 } 6737 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 6738 admin.permittedAccessiblityServices, userHandle); 6739 } 6740 } 6741 6742 private boolean checkCallerIsCurrentUserOrProfile() { 6743 int callingUserId = UserHandle.getCallingUserId(); 6744 long token = mInjector.binderClearCallingIdentity(); 6745 try { 6746 UserInfo currentUser; 6747 UserInfo callingUser = getUserInfo(callingUserId); 6748 try { 6749 currentUser = mInjector.getIActivityManager().getCurrentUser(); 6750 } catch (RemoteException e) { 6751 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 6752 return false; 6753 } 6754 6755 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 6756 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 6757 + "of a user that isn't the foreground user."); 6758 return false; 6759 } 6760 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 6761 Slog.e(LOG_TAG, "Cannot set permitted input methods " 6762 + "of a user that isn't the foreground user."); 6763 return false; 6764 } 6765 } finally { 6766 mInjector.binderRestoreCallingIdentity(token); 6767 } 6768 return true; 6769 } 6770 6771 @Override 6772 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 6773 if (!mHasFeature) { 6774 return false; 6775 } 6776 Preconditions.checkNotNull(who, "ComponentName is null"); 6777 6778 // TODO When InputMethodManager supports per user calls remove 6779 // this restriction. 6780 if (!checkCallerIsCurrentUserOrProfile()) { 6781 return false; 6782 } 6783 6784 if (packageList != null) { 6785 // InputMethodManager fetches input methods for current user. 6786 // So this can only be set when calling user is the current user 6787 // or parent is current user in case of managed profiles. 6788 InputMethodManager inputMethodManager = 6789 mContext.getSystemService(InputMethodManager.class); 6790 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 6791 6792 if (enabledImes != null) { 6793 List<String> enabledPackages = new ArrayList<String>(); 6794 for (InputMethodInfo ime : enabledImes) { 6795 enabledPackages.add(ime.getPackageName()); 6796 } 6797 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 6798 mInjector.binderGetCallingUserHandle().getIdentifier())) { 6799 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 6800 + "because it contains already enabled input method."); 6801 return false; 6802 } 6803 } 6804 } 6805 6806 synchronized (this) { 6807 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6808 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6809 admin.permittedInputMethods = packageList; 6810 saveSettingsLocked(UserHandle.getCallingUserId()); 6811 } 6812 return true; 6813 } 6814 6815 @Override 6816 public List getPermittedInputMethods(ComponentName who) { 6817 if (!mHasFeature) { 6818 return null; 6819 } 6820 Preconditions.checkNotNull(who, "ComponentName is null"); 6821 6822 synchronized (this) { 6823 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6824 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6825 return admin.permittedInputMethods; 6826 } 6827 } 6828 6829 @Override 6830 public List getPermittedInputMethodsForCurrentUser() { 6831 UserInfo currentUser; 6832 try { 6833 currentUser = mInjector.getIActivityManager().getCurrentUser(); 6834 } catch (RemoteException e) { 6835 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 6836 // Activity managed is dead, just allow all IMEs 6837 return null; 6838 } 6839 6840 int userId = currentUser.id; 6841 synchronized (this) { 6842 List<String> result = null; 6843 // If we have multiple profiles we return the intersection of the 6844 // permitted lists. This can happen in cases where we have a device 6845 // and profile owner. 6846 List<UserInfo> profiles = mUserManager.getProfiles(userId); 6847 final int PROFILES_SIZE = profiles.size(); 6848 for (int i = 0; i < PROFILES_SIZE; ++i) { 6849 // Just loop though all admins, only device or profiles 6850 // owners can have permitted lists set. 6851 DevicePolicyData policy = getUserDataUnchecked(profiles.get(i).id); 6852 final int N = policy.mAdminList.size(); 6853 for (int j = 0; j < N; j++) { 6854 ActiveAdmin admin = policy.mAdminList.get(j); 6855 List<String> fromAdmin = admin.permittedInputMethods; 6856 if (fromAdmin != null) { 6857 if (result == null) { 6858 result = new ArrayList<String>(fromAdmin); 6859 } else { 6860 result.retainAll(fromAdmin); 6861 } 6862 } 6863 } 6864 } 6865 6866 // If we have a permitted list add all system input methods. 6867 if (result != null) { 6868 InputMethodManager inputMethodManager = 6869 mContext.getSystemService(InputMethodManager.class); 6870 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 6871 long id = mInjector.binderClearCallingIdentity(); 6872 try { 6873 if (imes != null) { 6874 for (InputMethodInfo ime : imes) { 6875 ServiceInfo serviceInfo = ime.getServiceInfo(); 6876 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 6877 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 6878 result.add(serviceInfo.packageName); 6879 } 6880 } 6881 } 6882 } finally { 6883 mInjector.binderRestoreCallingIdentity(id); 6884 } 6885 } 6886 return result; 6887 } 6888 } 6889 6890 @Override 6891 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 6892 int userHandle) { 6893 if (!mHasFeature) { 6894 return true; 6895 } 6896 Preconditions.checkNotNull(who, "ComponentName is null"); 6897 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 6898 if (!isCallerWithSystemUid()) { 6899 throw new SecurityException( 6900 "Only the system can query if an input method is disabled by admin"); 6901 } 6902 synchronized (this) { 6903 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6904 if (admin == null) { 6905 return false; 6906 } 6907 if (admin.permittedInputMethods == null) { 6908 return true; 6909 } 6910 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 6911 admin.permittedInputMethods, userHandle); 6912 } 6913 } 6914 6915 private void sendAdminEnabledBroadcastLocked(int userHandle) { 6916 DevicePolicyData policyData = getUserData(userHandle); 6917 if (policyData.mAdminBroadcastPending) { 6918 // Send the initialization data to profile owner and delete the data 6919 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 6920 if (admin != null) { 6921 PersistableBundle initBundle = policyData.mInitBundle; 6922 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 6923 initBundle == null ? null : new Bundle(initBundle), null); 6924 } 6925 policyData.mInitBundle = null; 6926 policyData.mAdminBroadcastPending = false; 6927 saveSettingsLocked(userHandle); 6928 } 6929 } 6930 6931 @Override 6932 public UserHandle createAndManageUser(ComponentName admin, String name, 6933 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 6934 Preconditions.checkNotNull(admin, "admin is null"); 6935 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 6936 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 6937 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 6938 + admin + " are not in the same package"); 6939 } 6940 // Only allow the system user to use this method 6941 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 6942 throw new SecurityException("createAndManageUser was called from non-system user"); 6943 } 6944 if (!mInjector.userManagerIsSplitSystemUser() 6945 && (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 6946 throw new IllegalArgumentException( 6947 "Ephemeral users are only supported on systems with a split system user."); 6948 } 6949 // Create user. 6950 UserHandle user = null; 6951 synchronized (this) { 6952 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6953 6954 final long id = mInjector.binderClearCallingIdentity(); 6955 try { 6956 int userInfoFlags = 0; 6957 if ((flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 6958 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 6959 } 6960 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 6961 userInfoFlags); 6962 if (userInfo != null) { 6963 user = userInfo.getUserHandle(); 6964 } 6965 } finally { 6966 mInjector.binderRestoreCallingIdentity(id); 6967 } 6968 } 6969 if (user == null) { 6970 return null; 6971 } 6972 // Set admin. 6973 final long id = mInjector.binderClearCallingIdentity(); 6974 try { 6975 final String adminPkg = admin.getPackageName(); 6976 6977 final int userHandle = user.getIdentifier(); 6978 try { 6979 // Install the profile owner if not present. 6980 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 6981 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle); 6982 } 6983 } catch (RemoteException e) { 6984 Slog.e(LOG_TAG, "Failed to make remote calls for createAndManageUser, " 6985 + "removing created user", e); 6986 mUserManager.removeUser(user.getIdentifier()); 6987 return null; 6988 } 6989 6990 setActiveAdmin(profileOwner, true, userHandle); 6991 // User is not started yet, the broadcast by setActiveAdmin will not be received. 6992 // So we store adminExtras for broadcasting when the user starts for first time. 6993 synchronized(this) { 6994 DevicePolicyData policyData = getUserData(userHandle); 6995 policyData.mInitBundle = adminExtras; 6996 policyData.mAdminBroadcastPending = true; 6997 saveSettingsLocked(userHandle); 6998 } 6999 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 7000 setProfileOwner(profileOwner, ownerName, userHandle); 7001 7002 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 7003 Settings.Secure.putIntForUser(mContext.getContentResolver(), 7004 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 7005 } 7006 7007 return user; 7008 } finally { 7009 mInjector.binderRestoreCallingIdentity(id); 7010 } 7011 } 7012 7013 @Override 7014 public boolean removeUser(ComponentName who, UserHandle userHandle) { 7015 Preconditions.checkNotNull(who, "ComponentName is null"); 7016 synchronized (this) { 7017 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7018 7019 long id = mInjector.binderClearCallingIdentity(); 7020 try { 7021 return mUserManager.removeUser(userHandle.getIdentifier()); 7022 } finally { 7023 mInjector.binderRestoreCallingIdentity(id); 7024 } 7025 } 7026 } 7027 7028 @Override 7029 public boolean switchUser(ComponentName who, UserHandle userHandle) { 7030 Preconditions.checkNotNull(who, "ComponentName is null"); 7031 synchronized (this) { 7032 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7033 7034 long id = mInjector.binderClearCallingIdentity(); 7035 try { 7036 int userId = UserHandle.USER_SYSTEM; 7037 if (userHandle != null) { 7038 userId = userHandle.getIdentifier(); 7039 } 7040 return mInjector.getIActivityManager().switchUser(userId); 7041 } catch (RemoteException e) { 7042 Log.e(LOG_TAG, "Couldn't switch user", e); 7043 return false; 7044 } finally { 7045 mInjector.binderRestoreCallingIdentity(id); 7046 } 7047 } 7048 } 7049 7050 @Override 7051 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 7052 enforceCanManageApplicationRestrictions(who); 7053 7054 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 7055 final long id = mInjector.binderClearCallingIdentity(); 7056 try { 7057 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 7058 // if no restrictions were saved, mUserManager.getApplicationRestrictions 7059 // returns null, but DPM method should return an empty Bundle as per JavaDoc 7060 return bundle != null ? bundle : Bundle.EMPTY; 7061 } finally { 7062 mInjector.binderRestoreCallingIdentity(id); 7063 } 7064 } 7065 7066 @Override 7067 public String[] setPackagesSuspended(ComponentName who, String[] packageNames, 7068 boolean suspended) { 7069 Preconditions.checkNotNull(who, "ComponentName is null"); 7070 int callingUserId = UserHandle.getCallingUserId(); 7071 synchronized (this) { 7072 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7073 7074 long id = mInjector.binderClearCallingIdentity(); 7075 try { 7076 return mIPackageManager.setPackagesSuspendedAsUser( 7077 packageNames, suspended, callingUserId); 7078 } catch (RemoteException re) { 7079 // Shouldn't happen. 7080 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 7081 } finally { 7082 mInjector.binderRestoreCallingIdentity(id); 7083 } 7084 return packageNames; 7085 } 7086 } 7087 7088 @Override 7089 public boolean isPackageSuspended(ComponentName who, String packageName) { 7090 Preconditions.checkNotNull(who, "ComponentName is null"); 7091 int callingUserId = UserHandle.getCallingUserId(); 7092 synchronized (this) { 7093 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7094 7095 long id = mInjector.binderClearCallingIdentity(); 7096 try { 7097 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 7098 } catch (RemoteException re) { 7099 // Shouldn't happen. 7100 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 7101 } finally { 7102 mInjector.binderRestoreCallingIdentity(id); 7103 } 7104 return false; 7105 } 7106 } 7107 7108 @Override 7109 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 7110 Preconditions.checkNotNull(who, "ComponentName is null"); 7111 if (!UserRestrictionsUtils.isValidRestriction(key)) { 7112 return; 7113 } 7114 7115 final int userHandle = mInjector.userHandleGetCallingUserId(); 7116 synchronized (this) { 7117 ActiveAdmin activeAdmin = 7118 getActiveAdminForCallerLocked(who, 7119 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7120 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 7121 if (isDeviceOwner) { 7122 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 7123 throw new SecurityException("Device owner cannot set user restriction " + key); 7124 } 7125 } else { // profile owner 7126 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 7127 throw new SecurityException("Profile owner cannot set user restriction " + key); 7128 } 7129 } 7130 7131 // Save the restriction to ActiveAdmin. 7132 activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner); 7133 saveSettingsLocked(userHandle); 7134 7135 pushUserRestrictions(userHandle); 7136 7137 sendChangedNotification(userHandle); 7138 } 7139 } 7140 7141 private void pushUserRestrictions(int userId) { 7142 synchronized (this) { 7143 final Bundle global; 7144 final Bundle local = new Bundle(); 7145 if (mOwners.isDeviceOwnerUserId(userId)) { 7146 global = new Bundle(); 7147 7148 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 7149 if (deviceOwner == null) { 7150 return; // Shouldn't happen. 7151 } 7152 7153 UserRestrictionsUtils.sortToGlobalAndLocal(deviceOwner.userRestrictions, 7154 global, local); 7155 // DO can disable camera globally. 7156 if (deviceOwner.disableCamera) { 7157 global.putBoolean(UserManager.DISALLOW_CAMERA, true); 7158 } 7159 } else { 7160 global = null; 7161 7162 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 7163 if (profileOwner != null) { 7164 UserRestrictionsUtils.merge(local, profileOwner.userRestrictions); 7165 } 7166 } 7167 // Also merge in *local* camera restriction. 7168 if (getCameraDisabled(/* who= */ null, 7169 userId, /* mergeDeviceOwnerRestriction= */ false)) { 7170 local.putBoolean(UserManager.DISALLOW_CAMERA, true); 7171 } 7172 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, local, global); 7173 } 7174 } 7175 7176 @Override 7177 public Bundle getUserRestrictions(ComponentName who) { 7178 if (!mHasFeature) { 7179 return null; 7180 } 7181 Preconditions.checkNotNull(who, "ComponentName is null"); 7182 synchronized (this) { 7183 final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who, 7184 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7185 return activeAdmin.userRestrictions; 7186 } 7187 } 7188 7189 @Override 7190 public Bundle getUserRestrictionsForUser(ComponentName who, int userHandle) { 7191 if (!mHasFeature) { 7192 return null; 7193 } 7194 Preconditions.checkNotNull(who, "ComponentName is null"); 7195 enforceFullCrossUsersPermission(userHandle); 7196 enforceCanManageProfileAndDeviceOwners(); 7197 synchronized (this) { 7198 ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(who, userHandle); 7199 if (activeAdmin == null) { 7200 return null; 7201 } 7202 return activeAdmin.userRestrictions; 7203 } 7204 } 7205 7206 @Override 7207 public boolean setApplicationHidden(ComponentName who, String packageName, 7208 boolean hidden) { 7209 Preconditions.checkNotNull(who, "ComponentName is null"); 7210 int callingUserId = UserHandle.getCallingUserId(); 7211 synchronized (this) { 7212 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7213 7214 long id = mInjector.binderClearCallingIdentity(); 7215 try { 7216 return mIPackageManager.setApplicationHiddenSettingAsUser( 7217 packageName, hidden, callingUserId); 7218 } catch (RemoteException re) { 7219 // shouldn't happen 7220 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 7221 } finally { 7222 mInjector.binderRestoreCallingIdentity(id); 7223 } 7224 return false; 7225 } 7226 } 7227 7228 @Override 7229 public boolean isApplicationHidden(ComponentName who, String packageName) { 7230 Preconditions.checkNotNull(who, "ComponentName is null"); 7231 int callingUserId = UserHandle.getCallingUserId(); 7232 synchronized (this) { 7233 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7234 7235 long id = mInjector.binderClearCallingIdentity(); 7236 try { 7237 return mIPackageManager.getApplicationHiddenSettingAsUser( 7238 packageName, callingUserId); 7239 } catch (RemoteException re) { 7240 // shouldn't happen 7241 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 7242 } finally { 7243 mInjector.binderRestoreCallingIdentity(id); 7244 } 7245 return false; 7246 } 7247 } 7248 7249 @Override 7250 public void enableSystemApp(ComponentName who, String packageName) { 7251 Preconditions.checkNotNull(who, "ComponentName is null"); 7252 synchronized (this) { 7253 // This API can only be called by an active device admin, 7254 // so try to retrieve it to check that the caller is one. 7255 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7256 7257 int userId = UserHandle.getCallingUserId(); 7258 long id = mInjector.binderClearCallingIdentity(); 7259 7260 try { 7261 if (VERBOSE_LOG) { 7262 Slog.v(LOG_TAG, "installing " + packageName + " for " 7263 + userId); 7264 } 7265 7266 int parentUserId = getProfileParentId(userId); 7267 if (!isSystemApp(mIPackageManager, packageName, parentUserId)) { 7268 throw new IllegalArgumentException("Only system apps can be enabled this way."); 7269 } 7270 7271 // Install the app. 7272 mIPackageManager.installExistingPackageAsUser(packageName, userId); 7273 7274 } catch (RemoteException re) { 7275 // shouldn't happen 7276 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 7277 } finally { 7278 mInjector.binderRestoreCallingIdentity(id); 7279 } 7280 } 7281 } 7282 7283 @Override 7284 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 7285 Preconditions.checkNotNull(who, "ComponentName is null"); 7286 synchronized (this) { 7287 // This API can only be called by an active device admin, 7288 // so try to retrieve it to check that the caller is one. 7289 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7290 7291 int userId = UserHandle.getCallingUserId(); 7292 long id = mInjector.binderClearCallingIdentity(); 7293 7294 try { 7295 int parentUserId = getProfileParentId(userId); 7296 List<ResolveInfo> activitiesToEnable = mIPackageManager 7297 .queryIntentActivities(intent, 7298 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 7299 PackageManager.MATCH_DIRECT_BOOT_AWARE 7300 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 7301 parentUserId) 7302 .getList(); 7303 7304 if (VERBOSE_LOG) { 7305 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 7306 } 7307 int numberOfAppsInstalled = 0; 7308 if (activitiesToEnable != null) { 7309 for (ResolveInfo info : activitiesToEnable) { 7310 if (info.activityInfo != null) { 7311 String packageName = info.activityInfo.packageName; 7312 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 7313 numberOfAppsInstalled++; 7314 mIPackageManager.installExistingPackageAsUser(packageName, userId); 7315 } else { 7316 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 7317 + " system app"); 7318 } 7319 } 7320 } 7321 } 7322 return numberOfAppsInstalled; 7323 } catch (RemoteException e) { 7324 // shouldn't happen 7325 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 7326 return 0; 7327 } finally { 7328 mInjector.binderRestoreCallingIdentity(id); 7329 } 7330 } 7331 } 7332 7333 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 7334 throws RemoteException { 7335 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 7336 userId); 7337 if (appInfo == null) { 7338 throw new IllegalArgumentException("The application " + packageName + 7339 " is not present on this device"); 7340 } 7341 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 7342 } 7343 7344 @Override 7345 public void setAccountManagementDisabled(ComponentName who, String accountType, 7346 boolean disabled) { 7347 if (!mHasFeature) { 7348 return; 7349 } 7350 Preconditions.checkNotNull(who, "ComponentName is null"); 7351 synchronized (this) { 7352 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 7353 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7354 if (disabled) { 7355 ap.accountTypesWithManagementDisabled.add(accountType); 7356 } else { 7357 ap.accountTypesWithManagementDisabled.remove(accountType); 7358 } 7359 saveSettingsLocked(UserHandle.getCallingUserId()); 7360 } 7361 } 7362 7363 @Override 7364 public String[] getAccountTypesWithManagementDisabled() { 7365 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 7366 } 7367 7368 @Override 7369 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 7370 enforceFullCrossUsersPermission(userId); 7371 if (!mHasFeature) { 7372 return null; 7373 } 7374 synchronized (this) { 7375 DevicePolicyData policy = getUserData(userId); 7376 final int N = policy.mAdminList.size(); 7377 ArraySet<String> resultSet = new ArraySet<>(); 7378 for (int i = 0; i < N; i++) { 7379 ActiveAdmin admin = policy.mAdminList.get(i); 7380 resultSet.addAll(admin.accountTypesWithManagementDisabled); 7381 } 7382 return resultSet.toArray(new String[resultSet.size()]); 7383 } 7384 } 7385 7386 @Override 7387 public void setUninstallBlocked(ComponentName who, String packageName, 7388 boolean uninstallBlocked) { 7389 Preconditions.checkNotNull(who, "ComponentName is null"); 7390 final int userId = UserHandle.getCallingUserId(); 7391 synchronized (this) { 7392 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7393 7394 long id = mInjector.binderClearCallingIdentity(); 7395 try { 7396 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 7397 } catch (RemoteException re) { 7398 // Shouldn't happen. 7399 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 7400 } finally { 7401 mInjector.binderRestoreCallingIdentity(id); 7402 } 7403 } 7404 } 7405 7406 @Override 7407 public boolean isUninstallBlocked(ComponentName who, String packageName) { 7408 // This function should return true if and only if the package is blocked by 7409 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 7410 // when the package is a system app, or when it is an active device admin. 7411 final int userId = UserHandle.getCallingUserId(); 7412 7413 synchronized (this) { 7414 if (who != null) { 7415 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7416 } 7417 7418 long id = mInjector.binderClearCallingIdentity(); 7419 try { 7420 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 7421 } catch (RemoteException re) { 7422 // Shouldn't happen. 7423 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 7424 } finally { 7425 mInjector.binderRestoreCallingIdentity(id); 7426 } 7427 } 7428 return false; 7429 } 7430 7431 @Override 7432 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 7433 if (!mHasFeature) { 7434 return; 7435 } 7436 Preconditions.checkNotNull(who, "ComponentName is null"); 7437 synchronized (this) { 7438 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7439 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7440 if (admin.disableCallerId != disabled) { 7441 admin.disableCallerId = disabled; 7442 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 7443 } 7444 } 7445 } 7446 7447 @Override 7448 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 7449 if (!mHasFeature) { 7450 return false; 7451 } 7452 Preconditions.checkNotNull(who, "ComponentName is null"); 7453 synchronized (this) { 7454 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7455 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7456 return admin.disableCallerId; 7457 } 7458 } 7459 7460 @Override 7461 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 7462 enforceCrossUsersPermission(userId); 7463 synchronized (this) { 7464 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7465 return (admin != null) ? admin.disableCallerId : false; 7466 } 7467 } 7468 7469 @Override 7470 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 7471 if (!mHasFeature) { 7472 return; 7473 } 7474 Preconditions.checkNotNull(who, "ComponentName is null"); 7475 synchronized (this) { 7476 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7477 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7478 if (admin.disableContactsSearch != disabled) { 7479 admin.disableContactsSearch = disabled; 7480 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 7481 } 7482 } 7483 } 7484 7485 @Override 7486 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 7487 if (!mHasFeature) { 7488 return false; 7489 } 7490 Preconditions.checkNotNull(who, "ComponentName is null"); 7491 synchronized (this) { 7492 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7493 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7494 return admin.disableContactsSearch; 7495 } 7496 } 7497 7498 @Override 7499 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 7500 enforceCrossUsersPermission(userId); 7501 synchronized (this) { 7502 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7503 return (admin != null) ? admin.disableContactsSearch : false; 7504 } 7505 } 7506 7507 @Override 7508 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 7509 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 7510 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 7511 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 7512 final int callingUserId = UserHandle.getCallingUserId(); 7513 7514 final long ident = mInjector.binderClearCallingIdentity(); 7515 try { 7516 synchronized (this) { 7517 final int managedUserId = getManagedUserId(callingUserId); 7518 if (managedUserId < 0) { 7519 return; 7520 } 7521 if (isCrossProfileQuickContactDisabled(managedUserId)) { 7522 if (VERBOSE_LOG) { 7523 Log.v(LOG_TAG, 7524 "Cross-profile contacts access disabled for user " + managedUserId); 7525 } 7526 return; 7527 } 7528 ContactsInternal.startQuickContactWithErrorToastForUser( 7529 mContext, intent, new UserHandle(managedUserId)); 7530 } 7531 } finally { 7532 mInjector.binderRestoreCallingIdentity(ident); 7533 } 7534 } 7535 7536 /** 7537 * @return true if cross-profile QuickContact is disabled 7538 */ 7539 private boolean isCrossProfileQuickContactDisabled(int userId) { 7540 return getCrossProfileCallerIdDisabledForUser(userId) 7541 && getCrossProfileContactsSearchDisabledForUser(userId); 7542 } 7543 7544 /** 7545 * @return the user ID of the managed user that is linked to the current user, if any. 7546 * Otherwise -1. 7547 */ 7548 public int getManagedUserId(int callingUserId) { 7549 if (VERBOSE_LOG) { 7550 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 7551 } 7552 7553 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 7554 if (ui.id == callingUserId || !ui.isManagedProfile()) { 7555 continue; // Caller user self, or not a managed profile. Skip. 7556 } 7557 if (VERBOSE_LOG) { 7558 Log.v(LOG_TAG, "Managed user=" + ui.id); 7559 } 7560 return ui.id; 7561 } 7562 if (VERBOSE_LOG) { 7563 Log.v(LOG_TAG, "Managed user not found."); 7564 } 7565 return -1; 7566 } 7567 7568 @Override 7569 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 7570 if (!mHasFeature) { 7571 return; 7572 } 7573 Preconditions.checkNotNull(who, "ComponentName is null"); 7574 synchronized (this) { 7575 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7576 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7577 if (admin.disableBluetoothContactSharing != disabled) { 7578 admin.disableBluetoothContactSharing = disabled; 7579 saveSettingsLocked(UserHandle.getCallingUserId()); 7580 } 7581 } 7582 } 7583 7584 @Override 7585 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 7586 if (!mHasFeature) { 7587 return false; 7588 } 7589 Preconditions.checkNotNull(who, "ComponentName is null"); 7590 synchronized (this) { 7591 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7592 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7593 return admin.disableBluetoothContactSharing; 7594 } 7595 } 7596 7597 @Override 7598 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 7599 // TODO: Should there be a check to make sure this relationship is 7600 // within a profile group? 7601 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 7602 synchronized (this) { 7603 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7604 return (admin != null) ? admin.disableBluetoothContactSharing : false; 7605 } 7606 } 7607 7608 /** 7609 * Sets which packages may enter lock task mode. 7610 * 7611 * <p>This function can only be called by the device owner or alternatively by the profile owner 7612 * in case the user is affiliated. 7613 * 7614 * @param packages The list of packages allowed to enter lock task mode. 7615 */ 7616 @Override 7617 public void setLockTaskPackages(ComponentName who, String[] packages) 7618 throws SecurityException { 7619 Preconditions.checkNotNull(who, "ComponentName is null"); 7620 synchronized (this) { 7621 ActiveAdmin deviceOwner = getActiveAdminWithPolicyForUidLocked( 7622 who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, mInjector.binderGetCallingUid()); 7623 ActiveAdmin profileOwner = getActiveAdminWithPolicyForUidLocked( 7624 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()); 7625 if (deviceOwner != null || (profileOwner != null && isAffiliatedUser())) { 7626 int userHandle = mInjector.userHandleGetCallingUserId(); 7627 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 7628 } else { 7629 throw new SecurityException("Admin " + who + 7630 " is neither the device owner or affiliated user's profile owner."); 7631 } 7632 } 7633 } 7634 7635 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 7636 DevicePolicyData policy = getUserData(userHandle); 7637 policy.mLockTaskPackages = packages; 7638 7639 // Store the settings persistently. 7640 saveSettingsLocked(userHandle); 7641 updateLockTaskPackagesLocked(packages, userHandle); 7642 } 7643 7644 /** 7645 * This function returns the list of components allowed to start the task lock mode. 7646 */ 7647 @Override 7648 public String[] getLockTaskPackages(ComponentName who) { 7649 Preconditions.checkNotNull(who, "ComponentName is null"); 7650 synchronized (this) { 7651 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7652 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 7653 final List<String> packages = getLockTaskPackagesLocked(userHandle); 7654 return packages.toArray(new String[packages.size()]); 7655 } 7656 } 7657 7658 private List<String> getLockTaskPackagesLocked(int userHandle) { 7659 final DevicePolicyData policy = getUserData(userHandle); 7660 return policy.mLockTaskPackages; 7661 } 7662 7663 /** 7664 * This function lets the caller know whether the given package is allowed to start the 7665 * lock task mode. 7666 * @param pkg The package to check 7667 */ 7668 @Override 7669 public boolean isLockTaskPermitted(String pkg) { 7670 // Get current user's devicepolicy 7671 int uid = mInjector.binderGetCallingUid(); 7672 int userHandle = UserHandle.getUserId(uid); 7673 DevicePolicyData policy = getUserData(userHandle); 7674 synchronized (this) { 7675 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 7676 String lockTaskPackage = policy.mLockTaskPackages.get(i); 7677 7678 // If the given package equals one of the packages stored our list, 7679 // we allow this package to start lock task mode. 7680 if (lockTaskPackage.equals(pkg)) { 7681 return true; 7682 } 7683 } 7684 } 7685 return false; 7686 } 7687 7688 @Override 7689 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 7690 if (!isCallerWithSystemUid()) { 7691 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 7692 } 7693 synchronized (this) { 7694 final DevicePolicyData policy = getUserData(userHandle); 7695 Bundle adminExtras = new Bundle(); 7696 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 7697 for (ActiveAdmin admin : policy.mAdminList) { 7698 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 7699 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 7700 if (ownsDevice || ownsProfile) { 7701 if (isEnabled) { 7702 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 7703 adminExtras, null); 7704 } else { 7705 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 7706 } 7707 } 7708 } 7709 } 7710 } 7711 7712 @Override 7713 public void setGlobalSetting(ComponentName who, String setting, String value) { 7714 Preconditions.checkNotNull(who, "ComponentName is null"); 7715 7716 synchronized (this) { 7717 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7718 7719 // Some settings are no supported any more. However we do not want to throw a 7720 // SecurityException to avoid breaking apps. 7721 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 7722 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 7723 return; 7724 } 7725 7726 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 7727 throw new SecurityException(String.format( 7728 "Permission denial: device owners cannot update %1$s", setting)); 7729 } 7730 7731 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 7732 // ignore if it contradicts an existing policy 7733 long timeMs = getMaximumTimeToLock( 7734 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 7735 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 7736 return; 7737 } 7738 } 7739 7740 long id = mInjector.binderClearCallingIdentity(); 7741 try { 7742 mInjector.settingsGlobalPutString(setting, value); 7743 } finally { 7744 mInjector.binderRestoreCallingIdentity(id); 7745 } 7746 } 7747 } 7748 7749 @Override 7750 public void setSecureSetting(ComponentName who, String setting, String value) { 7751 Preconditions.checkNotNull(who, "ComponentName is null"); 7752 int callingUserId = mInjector.userHandleGetCallingUserId(); 7753 7754 synchronized (this) { 7755 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7756 7757 if (isDeviceOwner(who, callingUserId)) { 7758 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 7759 throw new SecurityException(String.format( 7760 "Permission denial: Device owners cannot update %1$s", setting)); 7761 } 7762 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 7763 throw new SecurityException(String.format( 7764 "Permission denial: Profile owners cannot update %1$s", setting)); 7765 } 7766 7767 long id = mInjector.binderClearCallingIdentity(); 7768 try { 7769 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 7770 } finally { 7771 mInjector.binderRestoreCallingIdentity(id); 7772 } 7773 } 7774 } 7775 7776 @Override 7777 public void setMasterVolumeMuted(ComponentName who, boolean on) { 7778 Preconditions.checkNotNull(who, "ComponentName is null"); 7779 synchronized (this) { 7780 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7781 int userId = UserHandle.getCallingUserId(); 7782 long identity = mInjector.binderClearCallingIdentity(); 7783 try { 7784 IAudioService iAudioService = IAudioService.Stub.asInterface( 7785 ServiceManager.getService(Context.AUDIO_SERVICE)); 7786 iAudioService.setMasterMute(on, 0, mContext.getPackageName(), userId); 7787 } catch (RemoteException re) { 7788 Slog.e(LOG_TAG, "Failed to setMasterMute", re); 7789 } finally { 7790 mInjector.binderRestoreCallingIdentity(identity); 7791 } 7792 } 7793 } 7794 7795 @Override 7796 public boolean isMasterVolumeMuted(ComponentName who) { 7797 Preconditions.checkNotNull(who, "ComponentName is null"); 7798 synchronized (this) { 7799 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7800 7801 AudioManager audioManager = 7802 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 7803 return audioManager.isMasterMute(); 7804 } 7805 } 7806 7807 @Override 7808 public void setUserIcon(ComponentName who, Bitmap icon) { 7809 synchronized (this) { 7810 Preconditions.checkNotNull(who, "ComponentName is null"); 7811 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7812 7813 int userId = UserHandle.getCallingUserId(); 7814 long id = mInjector.binderClearCallingIdentity(); 7815 try { 7816 mUserManagerInternal.setUserIcon(userId, icon); 7817 } finally { 7818 mInjector.binderRestoreCallingIdentity(id); 7819 } 7820 } 7821 } 7822 7823 @Override 7824 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 7825 Preconditions.checkNotNull(who, "ComponentName is null"); 7826 synchronized (this) { 7827 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7828 } 7829 final int userId = UserHandle.getCallingUserId(); 7830 7831 long ident = mInjector.binderClearCallingIdentity(); 7832 try { 7833 // disallow disabling the keyguard if a password is currently set 7834 if (disabled && mLockPatternUtils.isSecure(userId)) { 7835 return false; 7836 } 7837 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 7838 } finally { 7839 mInjector.binderRestoreCallingIdentity(ident); 7840 } 7841 return true; 7842 } 7843 7844 @Override 7845 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 7846 int userId = UserHandle.getCallingUserId(); 7847 synchronized (this) { 7848 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7849 DevicePolicyData policy = getUserData(userId); 7850 if (policy.mStatusBarDisabled != disabled) { 7851 if (!setStatusBarDisabledInternal(disabled, userId)) { 7852 return false; 7853 } 7854 policy.mStatusBarDisabled = disabled; 7855 saveSettingsLocked(userId); 7856 } 7857 } 7858 return true; 7859 } 7860 7861 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 7862 long ident = mInjector.binderClearCallingIdentity(); 7863 try { 7864 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 7865 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 7866 if (statusBarService != null) { 7867 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 7868 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 7869 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 7870 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 7871 return true; 7872 } 7873 } catch (RemoteException e) { 7874 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 7875 } finally { 7876 mInjector.binderRestoreCallingIdentity(ident); 7877 } 7878 return false; 7879 } 7880 7881 /** 7882 * We need to update the internal state of whether a user has completed setup once. After 7883 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 7884 * as we don't trust any apps that might try to reset it. 7885 * <p> 7886 * Unfortunately, we don't know which user's setup state was changed, so we write all of 7887 * them. 7888 */ 7889 void updateUserSetupComplete() { 7890 List<UserInfo> users = mUserManager.getUsers(true); 7891 final int N = users.size(); 7892 for (int i = 0; i < N; i++) { 7893 int userHandle = users.get(i).id; 7894 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 7895 userHandle) != 0) { 7896 DevicePolicyData policy = getUserData(userHandle); 7897 if (!policy.mUserSetupComplete) { 7898 policy.mUserSetupComplete = true; 7899 synchronized (this) { 7900 saveSettingsLocked(userHandle); 7901 } 7902 } 7903 } 7904 } 7905 } 7906 7907 private class SetupContentObserver extends ContentObserver { 7908 7909 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 7910 Settings.Secure.USER_SETUP_COMPLETE); 7911 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 7912 Settings.Global.DEVICE_PROVISIONED); 7913 7914 public SetupContentObserver(Handler handler) { 7915 super(handler); 7916 } 7917 7918 void register() { 7919 mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 7920 mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 7921 } 7922 7923 @Override 7924 public void onChange(boolean selfChange, Uri uri) { 7925 if (mUserSetupComplete.equals(uri)) { 7926 updateUserSetupComplete(); 7927 } else if (mDeviceProvisioned.equals(uri)) { 7928 synchronized (DevicePolicyManagerService.this) { 7929 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 7930 // is delayed until device is marked as provisioned. 7931 setDeviceOwnerSystemPropertyLocked(); 7932 } 7933 } 7934 } 7935 } 7936 7937 @VisibleForTesting 7938 final class LocalService extends DevicePolicyManagerInternal { 7939 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 7940 7941 @Override 7942 public List<String> getCrossProfileWidgetProviders(int profileId) { 7943 synchronized (DevicePolicyManagerService.this) { 7944 if (mOwners == null) { 7945 return Collections.emptyList(); 7946 } 7947 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 7948 if (ownerComponent == null) { 7949 return Collections.emptyList(); 7950 } 7951 7952 DevicePolicyData policy = getUserDataUnchecked(profileId); 7953 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 7954 7955 if (admin == null || admin.crossProfileWidgetProviders == null 7956 || admin.crossProfileWidgetProviders.isEmpty()) { 7957 return Collections.emptyList(); 7958 } 7959 7960 return admin.crossProfileWidgetProviders; 7961 } 7962 } 7963 7964 @Override 7965 public void addOnCrossProfileWidgetProvidersChangeListener( 7966 OnCrossProfileWidgetProvidersChangeListener listener) { 7967 synchronized (DevicePolicyManagerService.this) { 7968 if (mWidgetProviderListeners == null) { 7969 mWidgetProviderListeners = new ArrayList<>(); 7970 } 7971 if (!mWidgetProviderListeners.contains(listener)) { 7972 mWidgetProviderListeners.add(listener); 7973 } 7974 } 7975 } 7976 7977 @Override 7978 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 7979 synchronized(DevicePolicyManagerService.this) { 7980 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 7981 } 7982 } 7983 7984 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 7985 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 7986 synchronized (DevicePolicyManagerService.this) { 7987 listeners = new ArrayList<>(mWidgetProviderListeners); 7988 } 7989 final int listenerCount = listeners.size(); 7990 for (int i = 0; i < listenerCount; i++) { 7991 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 7992 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 7993 } 7994 } 7995 7996 @Override 7997 public boolean hasDeviceOwnerOrProfileOwner(String packageName, int userId) { 7998 if (!mHasFeature || packageName == null) { 7999 return false; 8000 } 8001 if (userId < 0) { 8002 throw new UnsupportedOperationException("userId should be >= 0"); 8003 } 8004 synchronized (DevicePolicyManagerService.this) { 8005 if (packageName.equals(mOwners.getProfileOwnerPackage(userId))) { 8006 return true; 8007 } 8008 if (userId == mOwners.getDeviceOwnerUserId() 8009 && packageName.equals(mOwners.getDeviceOwnerPackageName())) { 8010 return true; 8011 } 8012 } 8013 return false; 8014 } 8015 8016 @Override 8017 public Intent createPackageSuspendedDialogIntent(String packageName, int userId) { 8018 Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS); 8019 intent.putExtra(Intent.EXTRA_USER_ID, userId); 8020 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 8021 synchronized (DevicePolicyManagerService.this) { 8022 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 8023 if (profileOwner != null) { 8024 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, profileOwner); 8025 return intent; 8026 } 8027 8028 if (mOwners.getDeviceOwnerUserId() == userId) { 8029 ComponentName deviceOwner = mOwners.getDeviceOwnerComponent(); 8030 if (deviceOwner != null) { 8031 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, deviceOwner); 8032 return intent; 8033 } 8034 } 8035 } 8036 return null; 8037 } 8038 } 8039 8040 /** 8041 * Returns true if specified admin is allowed to limit passwords and has a 8042 * {@code passwordQuality} of at least {@code minPasswordQuality} 8043 */ 8044 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 8045 if (admin.passwordQuality < minPasswordQuality) { 8046 return false; 8047 } 8048 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 8049 } 8050 8051 @Override 8052 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 8053 if (policy != null && !policy.isValid()) { 8054 throw new IllegalArgumentException("Invalid system update policy."); 8055 } 8056 synchronized (this) { 8057 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8058 if (policy == null) { 8059 mOwners.clearSystemUpdatePolicy(); 8060 } else { 8061 mOwners.setSystemUpdatePolicy(policy); 8062 } 8063 mOwners.writeDeviceOwner(); 8064 } 8065 mContext.sendBroadcastAsUser( 8066 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 8067 UserHandle.SYSTEM); 8068 } 8069 8070 @Override 8071 public SystemUpdatePolicy getSystemUpdatePolicy() { 8072 synchronized (this) { 8073 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 8074 if (policy != null && !policy.isValid()) { 8075 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 8076 return null; 8077 } 8078 return policy; 8079 } 8080 } 8081 8082 /** 8083 * Checks if the caller of the method is the device owner app. 8084 * 8085 * @param callerUid UID of the caller. 8086 * @return true if the caller is the device owner app 8087 */ 8088 @VisibleForTesting 8089 boolean isCallerDeviceOwner(int callerUid) { 8090 synchronized (this) { 8091 if (!mOwners.hasDeviceOwner()) { 8092 return false; 8093 } 8094 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 8095 return false; 8096 } 8097 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 8098 .getPackageName(); 8099 final String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 8100 8101 for (String pkg : pkgs) { 8102 if (deviceOwnerPackageName.equals(pkg)) { 8103 return true; 8104 } 8105 } 8106 } 8107 8108 return false; 8109 } 8110 8111 @Override 8112 public void notifyPendingSystemUpdate(long updateReceivedTime) { 8113 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 8114 "Only the system update service can broadcast update information"); 8115 8116 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 8117 Slog.w(LOG_TAG, "Only the system update service in the system user " + 8118 "can broadcast update information."); 8119 return; 8120 } 8121 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 8122 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 8123 updateReceivedTime); 8124 8125 synchronized (this) { 8126 final String deviceOwnerPackage = 8127 mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerComponent().getPackageName() 8128 : null; 8129 if (deviceOwnerPackage == null) { 8130 return; 8131 } 8132 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 8133 8134 ActivityInfo[] receivers = null; 8135 try { 8136 receivers = mContext.getPackageManager().getPackageInfo( 8137 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 8138 } catch (NameNotFoundException e) { 8139 Log.e(LOG_TAG, "Cannot find device owner package", e); 8140 } 8141 if (receivers != null) { 8142 long ident = mInjector.binderClearCallingIdentity(); 8143 try { 8144 for (int i = 0; i < receivers.length; i++) { 8145 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 8146 intent.setComponent(new ComponentName(deviceOwnerPackage, 8147 receivers[i].name)); 8148 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 8149 } 8150 } 8151 } finally { 8152 mInjector.binderRestoreCallingIdentity(ident); 8153 } 8154 } 8155 } 8156 } 8157 8158 @Override 8159 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 8160 int userId = UserHandle.getCallingUserId(); 8161 synchronized (this) { 8162 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8163 DevicePolicyData userPolicy = getUserData(userId); 8164 if (userPolicy.mPermissionPolicy != policy) { 8165 userPolicy.mPermissionPolicy = policy; 8166 saveSettingsLocked(userId); 8167 } 8168 } 8169 } 8170 8171 @Override 8172 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 8173 int userId = UserHandle.getCallingUserId(); 8174 synchronized (this) { 8175 DevicePolicyData userPolicy = getUserData(userId); 8176 return userPolicy.mPermissionPolicy; 8177 } 8178 } 8179 8180 @Override 8181 public boolean setPermissionGrantState(ComponentName admin, String packageName, 8182 String permission, int grantState) throws RemoteException { 8183 UserHandle user = mInjector.binderGetCallingUserHandle(); 8184 synchronized (this) { 8185 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8186 long ident = mInjector.binderClearCallingIdentity(); 8187 try { 8188 if (getTargetSdk(packageName, user.getIdentifier()) 8189 < android.os.Build.VERSION_CODES.M) { 8190 return false; 8191 } 8192 final PackageManager packageManager = mContext.getPackageManager(); 8193 switch (grantState) { 8194 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 8195 packageManager.grantRuntimePermission(packageName, permission, user); 8196 packageManager.updatePermissionFlags(permission, packageName, 8197 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 8198 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 8199 } break; 8200 8201 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 8202 packageManager.revokeRuntimePermission(packageName, 8203 permission, user); 8204 packageManager.updatePermissionFlags(permission, packageName, 8205 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 8206 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 8207 } break; 8208 8209 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 8210 packageManager.updatePermissionFlags(permission, packageName, 8211 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 8212 } break; 8213 } 8214 return true; 8215 } catch (SecurityException se) { 8216 return false; 8217 } finally { 8218 mInjector.binderRestoreCallingIdentity(ident); 8219 } 8220 } 8221 } 8222 8223 @Override 8224 public int getPermissionGrantState(ComponentName admin, String packageName, 8225 String permission) throws RemoteException { 8226 PackageManager packageManager = mContext.getPackageManager(); 8227 8228 UserHandle user = mInjector.binderGetCallingUserHandle(); 8229 synchronized (this) { 8230 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8231 long ident = mInjector.binderClearCallingIdentity(); 8232 try { 8233 int granted = mIPackageManager.checkPermission(permission, 8234 packageName, user.getIdentifier()); 8235 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 8236 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 8237 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 8238 // Not controlled by policy 8239 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 8240 } else { 8241 // Policy controlled so return result based on permission grant state 8242 return granted == PackageManager.PERMISSION_GRANTED 8243 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 8244 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 8245 } 8246 } finally { 8247 mInjector.binderRestoreCallingIdentity(ident); 8248 } 8249 } 8250 } 8251 8252 boolean isPackageInstalledForUser(String packageName, int userHandle) { 8253 try { 8254 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 8255 userHandle); 8256 return (pi != null) && (pi.applicationInfo.flags != 0); 8257 } catch (RemoteException re) { 8258 throw new RuntimeException("Package manager has died", re); 8259 } 8260 } 8261 8262 @Override 8263 public boolean isProvisioningAllowed(String action) { 8264 if (!mHasFeature) { 8265 return false; 8266 } 8267 8268 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8269 if (DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE.equals(action)) { 8270 if (!hasFeatureManagedUsers()) { 8271 return false; 8272 } 8273 synchronized (this) { 8274 if (mOwners.hasDeviceOwner()) { 8275 if (!mInjector.userManagerIsSplitSystemUser()) { 8276 // Only split-system-user systems support managed-profiles in combination with 8277 // device-owner. 8278 return false; 8279 } 8280 if (mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM) { 8281 // Only system device-owner supports managed-profiles. Non-system device-owner 8282 // doesn't. 8283 return false; 8284 } 8285 if (callingUserId == UserHandle.USER_SYSTEM) { 8286 // Managed-profiles cannot be setup on the system user, only regular users. 8287 return false; 8288 } 8289 } 8290 } 8291 if (getProfileOwner(callingUserId) != null) { 8292 // Managed user cannot have a managed profile. 8293 return false; 8294 } 8295 final long ident = mInjector.binderClearCallingIdentity(); 8296 try { 8297 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, true)) { 8298 return false; 8299 } 8300 } finally { 8301 mInjector.binderRestoreCallingIdentity(ident); 8302 } 8303 return true; 8304 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE.equals(action)) { 8305 return isDeviceOwnerProvisioningAllowed(callingUserId); 8306 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_USER.equals(action)) { 8307 if (!hasFeatureManagedUsers()) { 8308 return false; 8309 } 8310 if (!mInjector.userManagerIsSplitSystemUser()) { 8311 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 8312 return false; 8313 } 8314 if (callingUserId == UserHandle.USER_SYSTEM) { 8315 // System user cannot be a managed user. 8316 return false; 8317 } 8318 if (hasUserSetupCompleted(callingUserId)) { 8319 return false; 8320 } 8321 return true; 8322 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE.equals(action)) { 8323 if (!mInjector.userManagerIsSplitSystemUser()) { 8324 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 8325 return false; 8326 } 8327 return isDeviceOwnerProvisioningAllowed(callingUserId); 8328 } 8329 throw new IllegalArgumentException("Unknown provisioning action " + action); 8330 } 8331 8332 /* 8333 * The device owner can only be set before the setup phase of the primary user has completed, 8334 * except for adb command if no accounts or additional users are present on the device. 8335 */ 8336 private synchronized @DeviceOwnerPreConditionCode int checkSetDeviceOwnerPreCondition( 8337 int deviceOwnerUserId, boolean isAdb) { 8338 if (mOwners.hasDeviceOwner()) { 8339 return CODE_HAS_DEVICE_OWNER; 8340 } 8341 if (mOwners.hasProfileOwner(deviceOwnerUserId)) { 8342 return CODE_USER_HAS_PROFILE_OWNER; 8343 } 8344 if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) { 8345 return CODE_USER_NOT_RUNNING; 8346 } 8347 if (isAdb) { 8348 // if shell command runs after user setup completed check device status. Otherwise, OK. 8349 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 8350 if (!mInjector.userManagerIsSplitSystemUser()) { 8351 if (mUserManager.getUserCount() > 1) { 8352 return CODE_NONSYSTEM_USER_EXISTS; 8353 } 8354 if (AccountManager.get(mContext).getAccounts().length > 0) { 8355 return CODE_ACCOUNTS_NOT_EMPTY; 8356 } 8357 } else { 8358 // STOPSHIP Do proper check in split user mode 8359 } 8360 } 8361 return CODE_OK; 8362 } else { 8363 if (!mInjector.userManagerIsSplitSystemUser()) { 8364 // In non-split user mode, DO has to be user 0 8365 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) { 8366 return CODE_NOT_SYSTEM_USER; 8367 } 8368 // In non-split user mode, only provision DO before setup wizard completes 8369 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 8370 return CODE_USER_SETUP_COMPLETED; 8371 } 8372 } else { 8373 // STOPSHIP Do proper check in split user mode 8374 } 8375 return CODE_OK; 8376 } 8377 } 8378 8379 private boolean isDeviceOwnerProvisioningAllowed(int deviceOwnerUserId) { 8380 return CODE_OK == checkSetDeviceOwnerPreCondition(deviceOwnerUserId, /* isAdb */ false); 8381 } 8382 8383 private boolean hasFeatureManagedUsers() { 8384 try { 8385 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 8386 } catch (RemoteException e) { 8387 return false; 8388 } 8389 } 8390 8391 @Override 8392 public String getWifiMacAddress(ComponentName admin) { 8393 // Make sure caller has DO. 8394 synchronized (this) { 8395 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8396 } 8397 8398 final long ident = mInjector.binderClearCallingIdentity(); 8399 try { 8400 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 8401 if (wifiInfo == null) { 8402 return null; 8403 } 8404 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 8405 } finally { 8406 mInjector.binderRestoreCallingIdentity(ident); 8407 } 8408 } 8409 8410 /** 8411 * Returns the target sdk version number that the given packageName was built for 8412 * in the given user. 8413 */ 8414 private int getTargetSdk(String packageName, int userId) { 8415 final ApplicationInfo ai; 8416 try { 8417 ai = mIPackageManager.getApplicationInfo(packageName, 0, userId); 8418 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 8419 return targetSdkVersion; 8420 } catch (RemoteException e) { 8421 // Shouldn't happen 8422 return 0; 8423 } 8424 } 8425 8426 @Override 8427 public boolean isManagedProfile(ComponentName admin) { 8428 synchronized (this) { 8429 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8430 } 8431 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8432 final UserInfo user = getUserInfo(callingUserId); 8433 return user != null && user.isManagedProfile(); 8434 } 8435 8436 @Override 8437 public boolean isSystemOnlyUser(ComponentName admin) { 8438 synchronized (this) { 8439 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8440 } 8441 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8442 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 8443 } 8444 8445 @Override 8446 public void reboot(ComponentName admin) { 8447 Preconditions.checkNotNull(admin); 8448 // Make sure caller has DO. 8449 synchronized (this) { 8450 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8451 } 8452 long ident = mInjector.binderClearCallingIdentity(); 8453 try { 8454 // Make sure there are no ongoing calls on the device. 8455 if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { 8456 throw new IllegalStateException("Cannot be called with ongoing call on the device"); 8457 } 8458 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 8459 } finally { 8460 mInjector.binderRestoreCallingIdentity(ident); 8461 } 8462 } 8463 8464 @Override 8465 public void setShortSupportMessage(@NonNull ComponentName who, String message) { 8466 if (!mHasFeature) { 8467 return; 8468 } 8469 Preconditions.checkNotNull(who, "ComponentName is null"); 8470 final int userHandle = mInjector.userHandleGetCallingUserId(); 8471 synchronized (this) { 8472 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8473 mInjector.binderGetCallingUid()); 8474 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 8475 admin.shortSupportMessage = message; 8476 saveSettingsLocked(userHandle); 8477 } 8478 } 8479 } 8480 8481 @Override 8482 public String getShortSupportMessage(@NonNull ComponentName who) { 8483 if (!mHasFeature) { 8484 return null; 8485 } 8486 Preconditions.checkNotNull(who, "ComponentName is null"); 8487 synchronized (this) { 8488 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8489 mInjector.binderGetCallingUid()); 8490 return admin.shortSupportMessage; 8491 } 8492 } 8493 8494 @Override 8495 public void setLongSupportMessage(@NonNull ComponentName who, String message) { 8496 if (!mHasFeature) { 8497 return; 8498 } 8499 Preconditions.checkNotNull(who, "ComponentName is null"); 8500 final int userHandle = mInjector.userHandleGetCallingUserId(); 8501 synchronized (this) { 8502 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8503 mInjector.binderGetCallingUid()); 8504 if (!TextUtils.equals(admin.longSupportMessage, message)) { 8505 admin.longSupportMessage = message; 8506 saveSettingsLocked(userHandle); 8507 } 8508 } 8509 } 8510 8511 @Override 8512 public String getLongSupportMessage(@NonNull ComponentName who) { 8513 if (!mHasFeature) { 8514 return null; 8515 } 8516 Preconditions.checkNotNull(who, "ComponentName is null"); 8517 synchronized (this) { 8518 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8519 mInjector.binderGetCallingUid()); 8520 return admin.longSupportMessage; 8521 } 8522 } 8523 8524 @Override 8525 public String getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 8526 if (!mHasFeature) { 8527 return null; 8528 } 8529 Preconditions.checkNotNull(who, "ComponentName is null"); 8530 if (!isCallerWithSystemUid()) { 8531 throw new SecurityException("Only the system can query support message for user"); 8532 } 8533 synchronized (this) { 8534 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8535 if (admin != null) { 8536 return admin.shortSupportMessage; 8537 } 8538 } 8539 return null; 8540 } 8541 8542 @Override 8543 public String getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 8544 if (!mHasFeature) { 8545 return null; 8546 } 8547 Preconditions.checkNotNull(who, "ComponentName is null"); 8548 if (!isCallerWithSystemUid()) { 8549 throw new SecurityException("Only the system can query support message for user"); 8550 } 8551 synchronized (this) { 8552 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8553 if (admin != null) { 8554 return admin.longSupportMessage; 8555 } 8556 } 8557 return null; 8558 } 8559 8560 @Override 8561 public void setOrganizationColor(@NonNull ComponentName who, int color) { 8562 if (!mHasFeature) { 8563 return; 8564 } 8565 Preconditions.checkNotNull(who, "ComponentName is null"); 8566 final int userHandle = mInjector.userHandleGetCallingUserId(); 8567 enforceManagedProfile(userHandle, "set organization color"); 8568 synchronized (this) { 8569 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8570 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8571 admin.organizationColor = color; 8572 saveSettingsLocked(userHandle); 8573 } 8574 } 8575 8576 @Override 8577 public void setOrganizationColorForUser(int color, int userId) { 8578 if (!mHasFeature) { 8579 return; 8580 } 8581 enforceFullCrossUsersPermission(userId); 8582 enforceManageUsers(); 8583 enforceManagedProfile(userId, "set organization color"); 8584 synchronized (this) { 8585 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8586 admin.organizationColor = color; 8587 saveSettingsLocked(userId); 8588 } 8589 } 8590 8591 @Override 8592 public int getOrganizationColor(@NonNull ComponentName who) { 8593 if (!mHasFeature) { 8594 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 8595 } 8596 Preconditions.checkNotNull(who, "ComponentName is null"); 8597 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 8598 synchronized (this) { 8599 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8600 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8601 return admin.organizationColor; 8602 } 8603 } 8604 8605 @Override 8606 public int getOrganizationColorForUser(int userHandle) { 8607 if (!mHasFeature) { 8608 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 8609 } 8610 enforceFullCrossUsersPermission(userHandle); 8611 enforceManagedProfile(userHandle, "get organization color"); 8612 synchronized (this) { 8613 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 8614 return (profileOwner != null) 8615 ? profileOwner.organizationColor 8616 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 8617 } 8618 } 8619 8620 @Override 8621 public void setOrganizationName(@NonNull ComponentName who, String text) { 8622 if (!mHasFeature) { 8623 return; 8624 } 8625 Preconditions.checkNotNull(who, "ComponentName is null"); 8626 final int userHandle = mInjector.userHandleGetCallingUserId(); 8627 enforceManagedProfile(userHandle, "set organization name"); 8628 synchronized (this) { 8629 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8630 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8631 if (!TextUtils.equals(admin.organizationName, text)) { 8632 admin.organizationName = TextUtils.nullIfEmpty(text); 8633 saveSettingsLocked(userHandle); 8634 } 8635 } 8636 } 8637 8638 @Override 8639 public String getOrganizationName(@NonNull ComponentName who) { 8640 if (!mHasFeature) { 8641 return null; 8642 } 8643 Preconditions.checkNotNull(who, "ComponentName is null"); 8644 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 8645 synchronized(this) { 8646 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8647 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8648 return admin.organizationName; 8649 } 8650 } 8651 8652 @Override 8653 public String getOrganizationNameForUser(int userHandle) { 8654 if (!mHasFeature) { 8655 return null; 8656 } 8657 enforceFullCrossUsersPermission(userHandle); 8658 enforceManagedProfile(userHandle, "get organization name"); 8659 synchronized (this) { 8660 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 8661 return (profileOwner != null) 8662 ? profileOwner.organizationName 8663 : null; 8664 } 8665 } 8666 8667 @Override 8668 public void setAffiliationIds(ComponentName admin, List<String> ids) { 8669 final Set<String> affiliationIds = new ArraySet<String>(ids); 8670 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8671 8672 synchronized (this) { 8673 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8674 getUserData(callingUserId).mAffiliationIds = affiliationIds; 8675 saveSettingsLocked(callingUserId); 8676 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 8677 // Affiliation ids specified by the device owner are additionally stored in 8678 // UserHandle.USER_SYSTEM's DevicePolicyData. 8679 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 8680 saveSettingsLocked(UserHandle.USER_SYSTEM); 8681 } 8682 } 8683 } 8684 8685 @Override 8686 public boolean isAffiliatedUser() { 8687 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8688 8689 synchronized (this) { 8690 if (mOwners.getDeviceOwnerUserId() == callingUserId) { 8691 // The user that the DO is installed on is always affiliated. 8692 return true; 8693 } 8694 final ComponentName profileOwner = getProfileOwner(callingUserId); 8695 if (profileOwner == null 8696 || !profileOwner.getPackageName().equals(mOwners.getDeviceOwnerPackageName())) { 8697 return false; 8698 } 8699 final Set<String> userAffiliationIds = getUserData(callingUserId).mAffiliationIds; 8700 final Set<String> deviceAffiliationIds = 8701 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 8702 for (String id : userAffiliationIds) { 8703 if (deviceAffiliationIds.contains(id)) { 8704 return true; 8705 } 8706 } 8707 } 8708 return false; 8709 } 8710 8711 private synchronized void disableSecurityLoggingIfNotCompliant() { 8712 if (!isDeviceOwnerManagedSingleUserDevice()) { 8713 mInjector.securityLogSetLoggingEnabledProperty(false); 8714 Slog.w(LOG_TAG, "Security logging turned off as it's no longer a single user device."); 8715 } 8716 } 8717 8718 @Override 8719 public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) { 8720 Preconditions.checkNotNull(admin); 8721 ensureDeviceOwnerManagingSingleUser(admin); 8722 8723 synchronized (this) { 8724 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 8725 return; 8726 } 8727 mInjector.securityLogSetLoggingEnabledProperty(enabled); 8728 if (enabled) { 8729 mSecurityLogMonitor.start(); 8730 } else { 8731 mSecurityLogMonitor.stop(); 8732 } 8733 } 8734 } 8735 8736 @Override 8737 public boolean isSecurityLoggingEnabled(ComponentName admin) { 8738 Preconditions.checkNotNull(admin); 8739 synchronized (this) { 8740 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8741 return mInjector.securityLogGetLoggingEnabledProperty(); 8742 } 8743 } 8744 8745 @Override 8746 public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) { 8747 Preconditions.checkNotNull(admin); 8748 ensureDeviceOwnerManagingSingleUser(admin); 8749 8750 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 8751 try { 8752 SecurityLog.readPreviousEvents(output); 8753 return new ParceledListSlice<SecurityEvent>(output); 8754 } catch (IOException e) { 8755 Slog.w(LOG_TAG, "Fail to read previous events" , e); 8756 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 8757 } 8758 } 8759 8760 @Override 8761 public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) { 8762 Preconditions.checkNotNull(admin); 8763 ensureDeviceOwnerManagingSingleUser(admin); 8764 8765 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 8766 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 8767 } 8768 8769 private void enforceCanManageDeviceAdmin() { 8770 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 8771 null); 8772 } 8773 8774 private void enforceCanManageProfileAndDeviceOwners() { 8775 mContext.enforceCallingOrSelfPermission( 8776 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 8777 } 8778 8779 @Override 8780 public boolean isUninstallInQueue(final String packageName) { 8781 enforceCanManageDeviceAdmin(); 8782 final int userId = mInjector.userHandleGetCallingUserId(); 8783 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 8784 synchronized (this) { 8785 return mPackagesToRemove.contains(packageUserPair); 8786 } 8787 } 8788 8789 @Override 8790 public void uninstallPackageWithActiveAdmins(final String packageName) { 8791 enforceCanManageDeviceAdmin(); 8792 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 8793 8794 final int userId = mInjector.userHandleGetCallingUserId(); 8795 8796 enforceUserUnlocked(userId); 8797 8798 final ComponentName profileOwner = getProfileOwner(userId); 8799 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 8800 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 8801 } 8802 8803 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 8804 if (getDeviceOwnerUserId() == userId && deviceOwner != null 8805 && packageName.equals(deviceOwner.getPackageName())) { 8806 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 8807 } 8808 8809 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 8810 synchronized (this) { 8811 mPackagesToRemove.add(packageUserPair); 8812 } 8813 8814 // All active admins on the user. 8815 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 8816 8817 // Active admins in the target package. 8818 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 8819 if (allActiveAdmins != null) { 8820 for (ComponentName activeAdmin : allActiveAdmins) { 8821 if (packageName.equals(activeAdmin.getPackageName())) { 8822 packageActiveAdmins.add(activeAdmin); 8823 removeActiveAdmin(activeAdmin, userId); 8824 } 8825 } 8826 } 8827 if (packageActiveAdmins.size() == 0) { 8828 startUninstallIntent(packageName, userId); 8829 } else { 8830 mHandler.postDelayed(new Runnable() { 8831 @Override 8832 public void run() { 8833 for (ComponentName activeAdmin : packageActiveAdmins) { 8834 removeAdminArtifacts(activeAdmin, userId); 8835 } 8836 startUninstallIntent(packageName, userId); 8837 } 8838 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 8839 } 8840 } 8841 8842 private void removePackageIfRequired(final String packageName, final int userId) { 8843 if (!packageHasActiveAdmins(packageName, userId)) { 8844 // Will not do anything if uninstall was not requested or was already started. 8845 startUninstallIntent(packageName, userId); 8846 } 8847 } 8848 8849 private void startUninstallIntent(final String packageName, final int userId) { 8850 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 8851 synchronized (this) { 8852 if (!mPackagesToRemove.contains(packageUserPair)) { 8853 // Do nothing if uninstall was not requested or was already started. 8854 return; 8855 } 8856 mPackagesToRemove.remove(packageUserPair); 8857 } 8858 try { 8859 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 8860 // Package does not exist. Nothing to do. 8861 return; 8862 } 8863 } catch (RemoteException re) { 8864 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 8865 } 8866 8867 try { // force stop the package before uninstalling 8868 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 8869 } catch (RemoteException re) { 8870 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 8871 } 8872 final Uri packageURI = Uri.parse("package:" + packageName); 8873 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 8874 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 8875 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 8876 } 8877 8878 /** 8879 * Removes the admin from the policy. Ideally called after the admin's 8880 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 8881 * 8882 * @param adminReceiver The admin to remove 8883 * @param userHandle The user for which this admin has to be removed. 8884 */ 8885 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 8886 synchronized (this) { 8887 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 8888 if (admin == null) { 8889 return; 8890 } 8891 final DevicePolicyData policy = getUserData(userHandle); 8892 final boolean doProxyCleanup = admin.info.usesPolicy( 8893 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 8894 policy.mAdminList.remove(admin); 8895 policy.mAdminMap.remove(adminReceiver); 8896 validatePasswordOwnerLocked(policy); 8897 if (doProxyCleanup) { 8898 resetGlobalProxyLocked(policy); 8899 } 8900 saveSettingsLocked(userHandle); 8901 updateMaximumTimeToLockLocked(userHandle); 8902 policy.mRemovingAdmins.remove(adminReceiver); 8903 } 8904 // The removed admin might have disabled camera, so update user 8905 // restrictions. 8906 pushUserRestrictions(userHandle); 8907 } 8908} 8909