DevicePolicyManagerService.java revision f9c376b7869810c91e067500cf0edbf94c4f6cda
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.devicepolicy; 18 19import static android.Manifest.permission.MANAGE_CA_CERTIFICATES; 20import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 21import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 22import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 23import static android.content.pm.PackageManager.GET_UNINSTALLED_PACKAGES; 24 25import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 26import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 27import static org.xmlpull.v1.XmlPullParser.END_TAG; 28import static org.xmlpull.v1.XmlPullParser.TEXT; 29 30import android.Manifest.permission; 31import android.accessibilityservice.AccessibilityServiceInfo; 32import android.accounts.Account; 33import android.accounts.AccountManager; 34import android.annotation.IntDef; 35import android.annotation.NonNull; 36import android.annotation.Nullable; 37import android.annotation.UserIdInt; 38import android.app.Activity; 39import android.app.ActivityManager; 40import android.app.ActivityManagerNative; 41import android.app.AlarmManager; 42import android.app.AppGlobals; 43import android.app.IActivityManager; 44import android.app.Notification; 45import android.app.NotificationManager; 46import android.app.PendingIntent; 47import android.app.StatusBarManager; 48import android.app.admin.DeviceAdminInfo; 49import android.app.admin.DeviceAdminReceiver; 50import android.app.admin.DevicePolicyManager; 51import android.app.admin.DevicePolicyManagerInternal; 52import android.app.admin.IDevicePolicyManager; 53import android.app.admin.SecurityLog; 54import android.app.admin.SecurityLog.SecurityEvent; 55import android.app.admin.SystemUpdatePolicy; 56import android.app.backup.IBackupManager; 57import android.content.BroadcastReceiver; 58import android.content.ComponentName; 59import android.content.Context; 60import android.content.Intent; 61import android.content.IntentFilter; 62import android.content.pm.ActivityInfo; 63import android.content.pm.ApplicationInfo; 64import android.content.pm.IPackageManager; 65import android.content.pm.PackageInfo; 66import android.content.pm.PackageManager; 67import android.content.pm.PackageManager.NameNotFoundException; 68import android.content.pm.PackageManagerInternal; 69import android.content.pm.ParceledListSlice; 70import android.content.pm.ResolveInfo; 71import android.content.pm.ServiceInfo; 72import android.content.pm.UserInfo; 73import android.database.ContentObserver; 74import android.graphics.Bitmap; 75import android.graphics.Color; 76import android.media.AudioManager; 77import android.media.IAudioService; 78import android.net.ConnectivityManager; 79import android.net.ProxyInfo; 80import android.net.Uri; 81import android.net.wifi.WifiInfo; 82import android.net.wifi.WifiManager; 83import android.os.AsyncTask; 84import android.os.Binder; 85import android.os.Build; 86import android.os.Bundle; 87import android.os.Environment; 88import android.os.FileUtils; 89import android.os.Handler; 90import android.os.IBinder; 91import android.os.Looper; 92import android.os.ParcelFileDescriptor; 93import android.os.PersistableBundle; 94import android.os.PowerManager; 95import android.os.PowerManagerInternal; 96import android.os.Process; 97import android.os.RecoverySystem; 98import android.os.RemoteCallback; 99import android.os.RemoteException; 100import android.os.ServiceManager; 101import android.os.SystemClock; 102import android.os.SystemProperties; 103import android.os.UserHandle; 104import android.os.UserManager; 105import android.os.UserManagerInternal; 106import android.os.storage.StorageManager; 107import android.provider.ContactsContract.QuickContact; 108import android.provider.ContactsInternal; 109import android.provider.Settings; 110import android.security.Credentials; 111import android.security.IKeyChainAliasCallback; 112import android.security.IKeyChainService; 113import android.security.KeyChain; 114import android.security.KeyChain.KeyChainConnection; 115import android.service.persistentdata.PersistentDataBlockManager; 116import android.telephony.TelephonyManager; 117import android.text.TextUtils; 118import android.util.ArrayMap; 119import android.util.ArraySet; 120import android.util.Log; 121import android.util.Pair; 122import android.util.Slog; 123import android.util.SparseArray; 124import android.util.Xml; 125import android.view.IWindowManager; 126import android.view.accessibility.AccessibilityManager; 127import android.view.accessibility.IAccessibilityManager; 128import android.view.inputmethod.InputMethodInfo; 129import android.view.inputmethod.InputMethodManager; 130 131import com.android.internal.R; 132import com.android.internal.annotations.VisibleForTesting; 133import com.android.internal.statusbar.IStatusBarService; 134import com.android.internal.util.FastXmlSerializer; 135import com.android.internal.util.JournaledFile; 136import com.android.internal.util.ParcelableString; 137import com.android.internal.util.Preconditions; 138import com.android.internal.util.XmlUtils; 139import com.android.internal.widget.LockPatternUtils; 140import com.android.server.LocalServices; 141import com.android.server.SystemService; 142import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 143import com.android.server.pm.UserRestrictionsUtils; 144import com.google.android.collect.Sets; 145 146import org.xmlpull.v1.XmlPullParser; 147import org.xmlpull.v1.XmlPullParserException; 148import org.xmlpull.v1.XmlSerializer; 149 150import java.io.ByteArrayInputStream; 151import java.io.File; 152import java.io.FileDescriptor; 153import java.io.FileInputStream; 154import java.io.FileNotFoundException; 155import java.io.FileOutputStream; 156import java.io.IOException; 157import java.io.PrintWriter; 158import java.lang.annotation.Retention; 159import java.lang.annotation.RetentionPolicy; 160import java.nio.charset.StandardCharsets; 161import java.security.cert.CertificateException; 162import java.security.cert.CertificateFactory; 163import java.security.cert.X509Certificate; 164import java.text.DateFormat; 165import java.util.ArrayList; 166import java.util.Arrays; 167import java.util.Collections; 168import java.util.Date; 169import java.util.List; 170import java.util.Map.Entry; 171import java.util.Set; 172import java.util.concurrent.atomic.AtomicBoolean; 173 174/** 175 * Implementation of the device policy APIs. 176 */ 177public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 178 179 private static final String LOG_TAG = "DevicePolicyManagerService"; 180 181 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 182 183 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 184 185 private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate"; 186 187 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 188 189 private static final String TAG_STATUS_BAR = "statusbar"; 190 191 private static final String ATTR_DISABLED = "disabled"; 192 193 private static final String ATTR_NAME = "name"; 194 195 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 196 "do-not-ask-credentials-on-boot"; 197 198 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 199 200 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 201 202 private static final String ATTR_VALUE = "value"; 203 204 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 205 206 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 207 208 private static final long MS_PER_DAY = 86400 * 1000; 209 210 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 211 212 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 213 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 214 215 private static final int MONITORING_CERT_NOTIFICATION_ID = R.plurals.ssl_ca_cert_warning; 216 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 217 218 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 219 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 220 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 221 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 222 private static final String ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED = 223 "device-provisioning-config-applied"; 224 225 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 226 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 227 = "application-restrictions-manager"; 228 229 /** 230 * System property whose value is either "true" or "false", indicating whether 231 * device owner is present. 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 boolean mDeviceProvisioningConfigApplied = false; 425 426 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 427 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 428 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 429 430 final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>(); 431 432 // This is the list of component allowed to start lock task mode. 433 List<String> mLockTaskPackages = new ArrayList<>(); 434 435 boolean mStatusBarDisabled = false; 436 437 ComponentName mRestrictionsProvider; 438 439 String mDelegatedCertInstallerPackage; 440 441 boolean doNotAskCredentialsOnBoot = false; 442 443 String mApplicationRestrictionsManagingPackage; 444 445 Set<String> mAffiliationIds = new ArraySet<>(); 446 447 // Used for initialization of users created by createAndManageUsers. 448 boolean mAdminBroadcastPending = false; 449 PersistableBundle mInitBundle = null; 450 451 public DevicePolicyData(int userHandle) { 452 mUserHandle = userHandle; 453 } 454 } 455 456 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 457 458 final Handler mHandler; 459 460 BroadcastReceiver mReceiver = new BroadcastReceiver() { 461 @Override 462 public void onReceive(Context context, Intent intent) { 463 final String action = intent.getAction(); 464 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 465 getSendingUserId()); 466 467 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 468 && userHandle == mOwners.getDeviceOwnerUserId() 469 && getDeviceOwnerRemoteBugreportUri() != null) { 470 IntentFilter filterConsent = new IntentFilter(); 471 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 472 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 473 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 474 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 475 RemoteBugreportUtils.NOTIFICATION_ID, 476 RemoteBugreportUtils.buildNotification(mContext, 477 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 478 UserHandle.ALL); 479 } 480 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 481 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 482 if (VERBOSE_LOG) { 483 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 484 + action + " for user " + userHandle); 485 } 486 mHandler.post(new Runnable() { 487 @Override 488 public void run() { 489 handlePasswordExpirationNotification(userHandle); 490 } 491 }); 492 } 493 if (Intent.ACTION_USER_UNLOCKED.equals(action) 494 || Intent.ACTION_USER_STARTED.equals(action) 495 || KeyChain.ACTION_TRUST_STORE_CHANGED.equals(action)) { 496 int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 497 new MonitoringCertNotificationTask().execute(userId); 498 } 499 if (Intent.ACTION_USER_ADDED.equals(action)) { 500 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 501 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 502 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 503 removeUserData(userHandle); 504 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 505 synchronized (DevicePolicyManagerService.this) { 506 // Reset the policy data 507 mUserData.remove(userHandle); 508 sendAdminEnabledBroadcastLocked(userHandle); 509 } 510 handlePackagesChanged(null /* check all admins */, userHandle); 511 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 512 handlePackagesChanged(null /* check all admins */, userHandle); 513 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 514 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 515 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 516 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 517 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 518 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 519 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 520 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 521 clearWipeProfileNotification(); 522 } 523 } 524 }; 525 526 static class ActiveAdmin { 527 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 528 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 529 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 530 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 531 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 532 = "disable-bt-contacts-sharing"; 533 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 534 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 535 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 536 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 537 private static final String TAG_ACCOUNT_TYPE = "account-type"; 538 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 539 = "permitted-accessiblity-services"; 540 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 541 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 542 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 543 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 544 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 545 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 546 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 547 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 548 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 549 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 550 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 551 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 552 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 553 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 554 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 555 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 556 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 557 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 558 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 559 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 560 private static final String ATTR_VALUE = "value"; 561 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 562 private static final String TAG_POLICIES = "policies"; 563 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 564 "cross-profile-widget-providers"; 565 private static final String TAG_PROVIDER = "provider"; 566 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 567 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 568 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 569 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 570 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 571 private static final String TAG_PARENT_ADMIN = "parent-admin"; 572 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 573 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 574 575 final DeviceAdminInfo info; 576 577 int passwordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 578 579 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 580 int minimumPasswordLength = DEF_MINIMUM_PASSWORD_LENGTH; 581 582 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 583 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 584 585 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 586 int minimumPasswordUpperCase = DEF_MINIMUM_PASSWORD_UPPER_CASE; 587 588 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 589 int minimumPasswordLowerCase = DEF_MINIMUM_PASSWORD_LOWER_CASE; 590 591 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 592 int minimumPasswordLetters = DEF_MINIMUM_PASSWORD_LETTERS; 593 594 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 595 int minimumPasswordNumeric = DEF_MINIMUM_PASSWORD_NUMERIC; 596 597 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 598 int minimumPasswordSymbols = DEF_MINIMUM_PASSWORD_SYMBOLS; 599 600 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 601 int minimumPasswordNonLetter = DEF_MINIMUM_PASSWORD_NON_LETTER; 602 603 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 604 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 605 606 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 607 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 608 609 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 610 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 611 612 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 613 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 614 615 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 616 617 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 618 619 boolean encryptionRequested = false; 620 boolean disableCamera = false; 621 boolean disableCallerId = false; 622 boolean disableContactsSearch = false; 623 boolean disableBluetoothContactSharing = true; 624 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 625 boolean requireAutoTime = false; // Can only be set by a device owner. 626 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 627 628 ActiveAdmin parentAdmin; 629 final boolean isParent; 630 631 static class TrustAgentInfo { 632 public PersistableBundle options; 633 TrustAgentInfo(PersistableBundle bundle) { 634 options = bundle; 635 } 636 } 637 638 Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 639 640 // The list of permitted accessibility services package namesas set by a profile 641 // or device owner. Null means all accessibility services are allowed, empty means 642 // none except system services are allowed. 643 List<String> permittedAccessiblityServices; 644 645 // The list of permitted input methods package names as set by a profile or device owner. 646 // Null means all input methods are allowed, empty means none except system imes are 647 // allowed. 648 List<String> permittedInputMethods; 649 650 // List of package names to keep cached. 651 List<String> keepUninstalledPackages; 652 653 // TODO: review implementation decisions with frameworks team 654 boolean specifiesGlobalProxy = false; 655 String globalProxySpec = null; 656 String globalProxyExclusionList = null; 657 658 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 659 660 List<String> crossProfileWidgetProviders; 661 662 Bundle userRestrictions; 663 664 // Support text provided by the admin to display to the user. 665 CharSequence shortSupportMessage = null; 666 CharSequence longSupportMessage = null; 667 668 // Background color of confirm credentials screen. Default: teal. 669 static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B"); 670 int organizationColor = DEF_ORGANIZATION_COLOR; 671 672 // Default title of confirm credentials screen 673 String organizationName = null; 674 675 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 676 info = _info; 677 isParent = parent; 678 } 679 680 ActiveAdmin getParentActiveAdmin() { 681 Preconditions.checkState(!isParent); 682 683 if (parentAdmin == null) { 684 parentAdmin = new ActiveAdmin(info, /* parent */ true); 685 } 686 return parentAdmin; 687 } 688 689 boolean hasParentActiveAdmin() { 690 return parentAdmin != null; 691 } 692 693 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 694 695 public UserHandle getUserHandle() { 696 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 697 } 698 699 void writeToXml(XmlSerializer out) 700 throws IllegalArgumentException, IllegalStateException, IOException { 701 out.startTag(null, TAG_POLICIES); 702 info.writePoliciesToXml(out); 703 out.endTag(null, TAG_POLICIES); 704 if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 705 out.startTag(null, TAG_PASSWORD_QUALITY); 706 out.attribute(null, ATTR_VALUE, Integer.toString(passwordQuality)); 707 out.endTag(null, TAG_PASSWORD_QUALITY); 708 if (minimumPasswordLength != DEF_MINIMUM_PASSWORD_LENGTH) { 709 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 710 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLength)); 711 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 712 } 713 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 714 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 715 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 716 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 717 } 718 if (minimumPasswordUpperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 719 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 720 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordUpperCase)); 721 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 722 } 723 if (minimumPasswordLowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 724 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 725 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLowerCase)); 726 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 727 } 728 if (minimumPasswordLetters != DEF_MINIMUM_PASSWORD_LETTERS) { 729 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 730 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordLetters)); 731 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 732 } 733 if (minimumPasswordNumeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 734 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 735 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNumeric)); 736 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 737 } 738 if (minimumPasswordSymbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 739 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 740 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordSymbols)); 741 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 742 } 743 if (minimumPasswordNonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 744 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 745 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordNonLetter)); 746 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 747 } 748 } 749 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 750 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 751 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 752 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 753 } 754 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 755 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 756 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 757 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 758 } 759 if (specifiesGlobalProxy) { 760 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 761 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 762 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 763 if (globalProxySpec != null) { 764 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 765 out.attribute(null, ATTR_VALUE, globalProxySpec); 766 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 767 } 768 if (globalProxyExclusionList != null) { 769 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 770 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 771 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 772 } 773 } 774 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 775 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 776 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 777 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 778 } 779 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 780 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 781 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 782 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 783 } 784 if (encryptionRequested) { 785 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 786 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 787 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 788 } 789 if (disableCamera) { 790 out.startTag(null, TAG_DISABLE_CAMERA); 791 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 792 out.endTag(null, TAG_DISABLE_CAMERA); 793 } 794 if (disableCallerId) { 795 out.startTag(null, TAG_DISABLE_CALLER_ID); 796 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 797 out.endTag(null, TAG_DISABLE_CALLER_ID); 798 } 799 if (disableContactsSearch) { 800 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 801 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 802 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 803 } 804 if (!disableBluetoothContactSharing) { 805 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 806 out.attribute(null, ATTR_VALUE, 807 Boolean.toString(disableBluetoothContactSharing)); 808 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 809 } 810 if (disableScreenCapture) { 811 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 812 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 813 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 814 } 815 if (requireAutoTime) { 816 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 817 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 818 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 819 } 820 if (forceEphemeralUsers) { 821 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 822 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 823 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 824 } 825 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 826 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 827 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 828 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 829 } 830 if (!accountTypesWithManagementDisabled.isEmpty()) { 831 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 832 for (String ac : accountTypesWithManagementDisabled) { 833 out.startTag(null, TAG_ACCOUNT_TYPE); 834 out.attribute(null, ATTR_VALUE, ac); 835 out.endTag(null, TAG_ACCOUNT_TYPE); 836 } 837 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 838 } 839 if (!trustAgentInfos.isEmpty()) { 840 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 841 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 842 for (Entry<String, TrustAgentInfo> entry : set) { 843 TrustAgentInfo trustAgentInfo = entry.getValue(); 844 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 845 out.attribute(null, ATTR_VALUE, entry.getKey()); 846 if (trustAgentInfo.options != null) { 847 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 848 try { 849 trustAgentInfo.options.saveToXml(out); 850 } catch (XmlPullParserException e) { 851 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 852 } 853 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 854 } 855 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 856 } 857 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 858 } 859 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 860 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 861 final int providerCount = crossProfileWidgetProviders.size(); 862 for (int i = 0; i < providerCount; i++) { 863 String provider = crossProfileWidgetProviders.get(i); 864 out.startTag(null, TAG_PROVIDER); 865 out.attribute(null, ATTR_VALUE, provider); 866 out.endTag(null, TAG_PROVIDER); 867 } 868 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 869 } 870 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 871 permittedAccessiblityServices); 872 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 873 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 874 if (hasUserRestrictions()) { 875 UserRestrictionsUtils.writeRestrictions( 876 out, userRestrictions, TAG_USER_RESTRICTIONS); 877 } 878 if (!TextUtils.isEmpty(shortSupportMessage)) { 879 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 880 out.text(shortSupportMessage.toString()); 881 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 882 } 883 if (!TextUtils.isEmpty(longSupportMessage)) { 884 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 885 out.text(longSupportMessage.toString()); 886 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 887 } 888 if (parentAdmin != null) { 889 out.startTag(null, TAG_PARENT_ADMIN); 890 parentAdmin.writeToXml(out); 891 out.endTag(null, TAG_PARENT_ADMIN); 892 } 893 if (organizationColor != DEF_ORGANIZATION_COLOR) { 894 out.startTag(null, TAG_ORGANIZATION_COLOR); 895 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 896 out.endTag(null, TAG_ORGANIZATION_COLOR); 897 } 898 if (organizationName != null) { 899 out.startTag(null, TAG_ORGANIZATION_NAME); 900 out.text(organizationName); 901 out.endTag(null, TAG_ORGANIZATION_NAME); 902 } 903 } 904 905 void writePackageListToXml(XmlSerializer out, String outerTag, 906 List<String> packageList) 907 throws IllegalArgumentException, IllegalStateException, IOException { 908 if (packageList == null) { 909 return; 910 } 911 912 out.startTag(null, outerTag); 913 for (String packageName : packageList) { 914 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 915 out.attribute(null, ATTR_VALUE, packageName); 916 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 917 } 918 out.endTag(null, outerTag); 919 } 920 921 void readFromXml(XmlPullParser parser) 922 throws XmlPullParserException, IOException { 923 int outerDepth = parser.getDepth(); 924 int type; 925 while ((type=parser.next()) != END_DOCUMENT 926 && (type != END_TAG || parser.getDepth() > outerDepth)) { 927 if (type == END_TAG || type == TEXT) { 928 continue; 929 } 930 String tag = parser.getName(); 931 if (TAG_POLICIES.equals(tag)) { 932 info.readPoliciesFromXml(parser); 933 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 934 passwordQuality = Integer.parseInt( 935 parser.getAttributeValue(null, ATTR_VALUE)); 936 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 937 minimumPasswordLength = Integer.parseInt( 938 parser.getAttributeValue(null, ATTR_VALUE)); 939 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 940 passwordHistoryLength = Integer.parseInt( 941 parser.getAttributeValue(null, ATTR_VALUE)); 942 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 943 minimumPasswordUpperCase = Integer.parseInt( 944 parser.getAttributeValue(null, ATTR_VALUE)); 945 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 946 minimumPasswordLowerCase = Integer.parseInt( 947 parser.getAttributeValue(null, ATTR_VALUE)); 948 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 949 minimumPasswordLetters = Integer.parseInt( 950 parser.getAttributeValue(null, ATTR_VALUE)); 951 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 952 minimumPasswordNumeric = Integer.parseInt( 953 parser.getAttributeValue(null, ATTR_VALUE)); 954 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 955 minimumPasswordSymbols = Integer.parseInt( 956 parser.getAttributeValue(null, ATTR_VALUE)); 957 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 958 minimumPasswordNonLetter = Integer.parseInt( 959 parser.getAttributeValue(null, ATTR_VALUE)); 960 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 961 maximumTimeToUnlock = Long.parseLong( 962 parser.getAttributeValue(null, ATTR_VALUE)); 963 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 964 maximumFailedPasswordsForWipe = Integer.parseInt( 965 parser.getAttributeValue(null, ATTR_VALUE)); 966 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 967 specifiesGlobalProxy = Boolean.parseBoolean( 968 parser.getAttributeValue(null, ATTR_VALUE)); 969 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 970 globalProxySpec = 971 parser.getAttributeValue(null, ATTR_VALUE); 972 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 973 globalProxyExclusionList = 974 parser.getAttributeValue(null, ATTR_VALUE); 975 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 976 passwordExpirationTimeout = Long.parseLong( 977 parser.getAttributeValue(null, ATTR_VALUE)); 978 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 979 passwordExpirationDate = Long.parseLong( 980 parser.getAttributeValue(null, ATTR_VALUE)); 981 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 982 encryptionRequested = Boolean.parseBoolean( 983 parser.getAttributeValue(null, ATTR_VALUE)); 984 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 985 disableCamera = Boolean.parseBoolean( 986 parser.getAttributeValue(null, ATTR_VALUE)); 987 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 988 disableCallerId = Boolean.parseBoolean( 989 parser.getAttributeValue(null, ATTR_VALUE)); 990 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 991 disableContactsSearch = Boolean.parseBoolean( 992 parser.getAttributeValue(null, ATTR_VALUE)); 993 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 994 disableBluetoothContactSharing = Boolean.parseBoolean(parser 995 .getAttributeValue(null, ATTR_VALUE)); 996 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 997 disableScreenCapture = Boolean.parseBoolean( 998 parser.getAttributeValue(null, ATTR_VALUE)); 999 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 1000 requireAutoTime = Boolean.parseBoolean( 1001 parser.getAttributeValue(null, ATTR_VALUE)); 1002 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 1003 forceEphemeralUsers = Boolean.parseBoolean( 1004 parser.getAttributeValue(null, ATTR_VALUE)); 1005 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 1006 disabledKeyguardFeatures = Integer.parseInt( 1007 parser.getAttributeValue(null, ATTR_VALUE)); 1008 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 1009 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 1010 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 1011 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 1012 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 1013 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 1014 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 1015 permittedAccessiblityServices = readPackageList(parser, tag); 1016 } else if (TAG_PERMITTED_IMES.equals(tag)) { 1017 permittedInputMethods = readPackageList(parser, tag); 1018 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 1019 keepUninstalledPackages = readPackageList(parser, tag); 1020 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 1021 UserRestrictionsUtils.readRestrictions(parser, ensureUserRestrictions()); 1022 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 1023 type = parser.next(); 1024 if (type == XmlPullParser.TEXT) { 1025 shortSupportMessage = parser.getText(); 1026 } else { 1027 Log.w(LOG_TAG, "Missing text when loading short support message"); 1028 } 1029 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 1030 type = parser.next(); 1031 if (type == XmlPullParser.TEXT) { 1032 longSupportMessage = parser.getText(); 1033 } else { 1034 Log.w(LOG_TAG, "Missing text when loading long support message"); 1035 } 1036 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1037 Preconditions.checkState(!isParent); 1038 1039 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1040 parentAdmin.readFromXml(parser); 1041 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1042 organizationColor = Integer.parseInt( 1043 parser.getAttributeValue(null, ATTR_VALUE)); 1044 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1045 type = parser.next(); 1046 if (type == XmlPullParser.TEXT) { 1047 organizationName = parser.getText(); 1048 } else { 1049 Log.w(LOG_TAG, "Missing text when loading organization name"); 1050 } 1051 } else { 1052 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1053 XmlUtils.skipCurrentTag(parser); 1054 } 1055 } 1056 } 1057 1058 private List<String> readPackageList(XmlPullParser parser, 1059 String tag) throws XmlPullParserException, IOException { 1060 List<String> result = new ArrayList<String>(); 1061 int outerDepth = parser.getDepth(); 1062 int outerType; 1063 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1064 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1065 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1066 continue; 1067 } 1068 String outerTag = parser.getName(); 1069 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1070 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1071 if (packageName != null) { 1072 result.add(packageName); 1073 } else { 1074 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1075 } 1076 } else { 1077 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1078 } 1079 } 1080 return result; 1081 } 1082 1083 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 1084 throws XmlPullParserException, IOException { 1085 int outerDepthDAM = parser.getDepth(); 1086 int typeDAM; 1087 Set<String> result = new ArraySet<>(); 1088 while ((typeDAM=parser.next()) != END_DOCUMENT 1089 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1090 if (typeDAM == END_TAG || typeDAM == TEXT) { 1091 continue; 1092 } 1093 String tagDAM = parser.getName(); 1094 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 1095 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1096 } else { 1097 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1098 } 1099 } 1100 return result; 1101 } 1102 1103 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1104 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1105 int outerDepthDAM = parser.getDepth(); 1106 int typeDAM; 1107 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1108 while ((typeDAM=parser.next()) != END_DOCUMENT 1109 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1110 if (typeDAM == END_TAG || typeDAM == TEXT) { 1111 continue; 1112 } 1113 String tagDAM = parser.getName(); 1114 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1115 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1116 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1117 result.put(component, trustAgentInfo); 1118 } else { 1119 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1120 } 1121 } 1122 return result; 1123 } 1124 1125 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1126 throws XmlPullParserException, IOException { 1127 int outerDepthDAM = parser.getDepth(); 1128 int typeDAM; 1129 TrustAgentInfo result = new TrustAgentInfo(null); 1130 while ((typeDAM=parser.next()) != END_DOCUMENT 1131 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1132 if (typeDAM == END_TAG || typeDAM == TEXT) { 1133 continue; 1134 } 1135 String tagDAM = parser.getName(); 1136 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 1137 result.options = PersistableBundle.restoreFromXml(parser); 1138 } else { 1139 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1140 } 1141 } 1142 return result; 1143 } 1144 1145 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 1146 throws XmlPullParserException, IOException { 1147 int outerDepthDAM = parser.getDepth(); 1148 int typeDAM; 1149 ArrayList<String> result = null; 1150 while ((typeDAM=parser.next()) != END_DOCUMENT 1151 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1152 if (typeDAM == END_TAG || typeDAM == TEXT) { 1153 continue; 1154 } 1155 String tagDAM = parser.getName(); 1156 if (TAG_PROVIDER.equals(tagDAM)) { 1157 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 1158 if (result == null) { 1159 result = new ArrayList<>(); 1160 } 1161 result.add(provider); 1162 } else { 1163 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1164 } 1165 } 1166 return result; 1167 } 1168 1169 boolean hasUserRestrictions() { 1170 return userRestrictions != null && userRestrictions.size() > 0; 1171 } 1172 1173 Bundle ensureUserRestrictions() { 1174 if (userRestrictions == null) { 1175 userRestrictions = new Bundle(); 1176 } 1177 return userRestrictions; 1178 } 1179 1180 void dump(String prefix, PrintWriter pw) { 1181 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1182 pw.print(prefix); pw.println("policies:"); 1183 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1184 if (pols != null) { 1185 for (int i=0; i<pols.size(); i++) { 1186 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1187 } 1188 } 1189 pw.print(prefix); pw.print("passwordQuality=0x"); 1190 pw.println(Integer.toHexString(passwordQuality)); 1191 pw.print(prefix); pw.print("minimumPasswordLength="); 1192 pw.println(minimumPasswordLength); 1193 pw.print(prefix); pw.print("passwordHistoryLength="); 1194 pw.println(passwordHistoryLength); 1195 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1196 pw.println(minimumPasswordUpperCase); 1197 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1198 pw.println(minimumPasswordLowerCase); 1199 pw.print(prefix); pw.print("minimumPasswordLetters="); 1200 pw.println(minimumPasswordLetters); 1201 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1202 pw.println(minimumPasswordNumeric); 1203 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1204 pw.println(minimumPasswordSymbols); 1205 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1206 pw.println(minimumPasswordNonLetter); 1207 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1208 pw.println(maximumTimeToUnlock); 1209 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1210 pw.println(maximumFailedPasswordsForWipe); 1211 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1212 pw.println(specifiesGlobalProxy); 1213 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1214 pw.println(passwordExpirationTimeout); 1215 pw.print(prefix); pw.print("passwordExpirationDate="); 1216 pw.println(passwordExpirationDate); 1217 if (globalProxySpec != null) { 1218 pw.print(prefix); pw.print("globalProxySpec="); 1219 pw.println(globalProxySpec); 1220 } 1221 if (globalProxyExclusionList != null) { 1222 pw.print(prefix); pw.print("globalProxyEclusionList="); 1223 pw.println(globalProxyExclusionList); 1224 } 1225 pw.print(prefix); pw.print("encryptionRequested="); 1226 pw.println(encryptionRequested); 1227 pw.print(prefix); pw.print("disableCamera="); 1228 pw.println(disableCamera); 1229 pw.print(prefix); pw.print("disableCallerId="); 1230 pw.println(disableCallerId); 1231 pw.print(prefix); pw.print("disableContactsSearch="); 1232 pw.println(disableContactsSearch); 1233 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1234 pw.println(disableBluetoothContactSharing); 1235 pw.print(prefix); pw.print("disableScreenCapture="); 1236 pw.println(disableScreenCapture); 1237 pw.print(prefix); pw.print("requireAutoTime="); 1238 pw.println(requireAutoTime); 1239 pw.print(prefix); pw.print("forceEphemeralUsers="); 1240 pw.println(forceEphemeralUsers); 1241 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1242 pw.println(disabledKeyguardFeatures); 1243 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1244 pw.println(crossProfileWidgetProviders); 1245 if (permittedAccessiblityServices != null) { 1246 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1247 pw.println(permittedAccessiblityServices); 1248 } 1249 if (permittedInputMethods != null) { 1250 pw.print(prefix); pw.print("permittedInputMethods="); 1251 pw.println(permittedInputMethods); 1252 } 1253 if (keepUninstalledPackages != null) { 1254 pw.print(prefix); pw.print("keepUninstalledPackages="); 1255 pw.println(keepUninstalledPackages); 1256 } 1257 pw.print(prefix); pw.print("organizationColor="); 1258 pw.println(organizationColor); 1259 if (organizationName != null) { 1260 pw.print(prefix); pw.print("organizationName="); 1261 pw.println(organizationName); 1262 } 1263 pw.print(prefix); pw.println("userRestrictions:"); 1264 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1265 pw.print(prefix); pw.print("isParent="); 1266 pw.println(isParent); 1267 if (parentAdmin != null) { 1268 pw.print(prefix); pw.println("parentAdmin:"); 1269 parentAdmin.dump(prefix + " ", pw); 1270 } 1271 } 1272 } 1273 1274 private void handlePackagesChanged(String packageName, int userHandle) { 1275 boolean removed = false; 1276 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1277 DevicePolicyData policy = getUserData(userHandle); 1278 synchronized (this) { 1279 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1280 ActiveAdmin aa = policy.mAdminList.get(i); 1281 try { 1282 // If we're checking all packages or if the specific one we're checking matches, 1283 // then check if the package and receiver still exist. 1284 final String adminPackage = aa.info.getPackageName(); 1285 if (packageName == null || packageName.equals(adminPackage)) { 1286 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1287 || mIPackageManager.getReceiverInfo(aa.info.getComponent(), 1288 PackageManager.MATCH_DIRECT_BOOT_AWARE 1289 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 1290 userHandle) == null) { 1291 removed = true; 1292 policy.mAdminList.remove(i); 1293 policy.mAdminMap.remove(aa.info.getComponent()); 1294 } 1295 } 1296 } catch (RemoteException re) { 1297 // Shouldn't happen 1298 } 1299 } 1300 if (removed) { 1301 validatePasswordOwnerLocked(policy); 1302 saveSettingsLocked(policy.mUserHandle); 1303 } 1304 1305 // Check if delegated cert installer or app restrictions managing packages are removed. 1306 if (isRemovedPackage(packageName, policy.mDelegatedCertInstallerPackage, userHandle)) { 1307 policy.mDelegatedCertInstallerPackage = null; 1308 saveSettingsLocked(policy.mUserHandle); 1309 } 1310 if (isRemovedPackage( 1311 packageName, policy.mApplicationRestrictionsManagingPackage, userHandle)) { 1312 policy.mApplicationRestrictionsManagingPackage = null; 1313 saveSettingsLocked(policy.mUserHandle); 1314 } 1315 } 1316 if (removed) { 1317 // The removed admin might have disabled camera, so update user restrictions. 1318 pushUserRestrictions(userHandle); 1319 } 1320 } 1321 1322 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1323 try { 1324 return targetPackage != null 1325 && (changedPackage == null || changedPackage.equals(targetPackage)) 1326 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1327 } catch (RemoteException e) { 1328 // Shouldn't happen 1329 } 1330 1331 return false; 1332 } 1333 1334 /** 1335 * Unit test will subclass it to inject mocks. 1336 */ 1337 @VisibleForTesting 1338 static class Injector { 1339 1340 private final Context mContext; 1341 1342 Injector(Context context) { 1343 mContext = context; 1344 } 1345 1346 Owners newOwners() { 1347 return new Owners(getUserManager(), getUserManagerInternal(), 1348 getPackageManagerInternal()); 1349 } 1350 1351 UserManager getUserManager() { 1352 return UserManager.get(mContext); 1353 } 1354 1355 UserManagerInternal getUserManagerInternal() { 1356 return LocalServices.getService(UserManagerInternal.class); 1357 } 1358 1359 PackageManagerInternal getPackageManagerInternal() { 1360 return LocalServices.getService(PackageManagerInternal.class); 1361 } 1362 1363 NotificationManager getNotificationManager() { 1364 return mContext.getSystemService(NotificationManager.class); 1365 } 1366 1367 PowerManagerInternal getPowerManagerInternal() { 1368 return LocalServices.getService(PowerManagerInternal.class); 1369 } 1370 1371 TelephonyManager getTelephonyManager() { 1372 return TelephonyManager.from(mContext); 1373 } 1374 1375 IWindowManager getIWindowManager() { 1376 return IWindowManager.Stub 1377 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1378 } 1379 1380 IActivityManager getIActivityManager() { 1381 return ActivityManagerNative.getDefault(); 1382 } 1383 1384 IPackageManager getIPackageManager() { 1385 return AppGlobals.getPackageManager(); 1386 } 1387 1388 IBackupManager getIBackupManager() { 1389 return IBackupManager.Stub.asInterface( 1390 ServiceManager.getService(Context.BACKUP_SERVICE)); 1391 } 1392 1393 IAudioService getIAudioService() { 1394 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1395 } 1396 1397 boolean isBuildDebuggable() { 1398 return Build.IS_DEBUGGABLE; 1399 } 1400 1401 LockPatternUtils newLockPatternUtils() { 1402 return new LockPatternUtils(mContext); 1403 } 1404 1405 boolean storageManagerIsFileBasedEncryptionEnabled() { 1406 return StorageManager.isFileEncryptedNativeOnly(); 1407 } 1408 1409 boolean storageManagerIsNonDefaultBlockEncrypted() { 1410 long identity = Binder.clearCallingIdentity(); 1411 try { 1412 return StorageManager.isNonDefaultBlockEncrypted(); 1413 } finally { 1414 Binder.restoreCallingIdentity(identity); 1415 } 1416 } 1417 1418 boolean storageManagerIsEncrypted() { 1419 return StorageManager.isEncrypted(); 1420 } 1421 1422 boolean storageManagerIsEncryptable() { 1423 return StorageManager.isEncryptable(); 1424 } 1425 1426 Looper getMyLooper() { 1427 return Looper.myLooper(); 1428 } 1429 1430 WifiManager getWifiManager() { 1431 return mContext.getSystemService(WifiManager.class); 1432 } 1433 1434 long binderClearCallingIdentity() { 1435 return Binder.clearCallingIdentity(); 1436 } 1437 1438 void binderRestoreCallingIdentity(long token) { 1439 Binder.restoreCallingIdentity(token); 1440 } 1441 1442 int binderGetCallingUid() { 1443 return Binder.getCallingUid(); 1444 } 1445 1446 int binderGetCallingPid() { 1447 return Binder.getCallingPid(); 1448 } 1449 1450 UserHandle binderGetCallingUserHandle() { 1451 return Binder.getCallingUserHandle(); 1452 } 1453 1454 boolean binderIsCallingUidMyUid() { 1455 return getCallingUid() == Process.myUid(); 1456 } 1457 1458 final int userHandleGetCallingUserId() { 1459 return UserHandle.getUserId(binderGetCallingUid()); 1460 } 1461 1462 File environmentGetUserSystemDirectory(int userId) { 1463 return Environment.getUserSystemDirectory(userId); 1464 } 1465 1466 void powerManagerGoToSleep(long time, int reason, int flags) { 1467 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1468 } 1469 1470 void powerManagerReboot(String reason) { 1471 mContext.getSystemService(PowerManager.class).reboot(reason); 1472 } 1473 1474 boolean systemPropertiesGetBoolean(String key, boolean def) { 1475 return SystemProperties.getBoolean(key, def); 1476 } 1477 1478 long systemPropertiesGetLong(String key, long def) { 1479 return SystemProperties.getLong(key, def); 1480 } 1481 1482 String systemPropertiesGet(String key, String def) { 1483 return SystemProperties.get(key, def); 1484 } 1485 1486 String systemPropertiesGet(String key) { 1487 return SystemProperties.get(key); 1488 } 1489 1490 void systemPropertiesSet(String key, String value) { 1491 SystemProperties.set(key, value); 1492 } 1493 1494 boolean userManagerIsSplitSystemUser() { 1495 return UserManager.isSplitSystemUser(); 1496 } 1497 1498 String getDevicePolicyFilePathForSystemUser() { 1499 return "/data/system/"; 1500 } 1501 1502 void registerContentObserver(Uri uri, boolean notifyForDescendents, 1503 ContentObserver observer, int userHandle) { 1504 mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents, 1505 observer, userHandle); 1506 } 1507 1508 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1509 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1510 name, def, userHandle); 1511 } 1512 1513 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1514 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1515 name, value, userHandle); 1516 } 1517 1518 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1519 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1520 name, value, userHandle); 1521 } 1522 1523 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1524 Settings.Global.putStringForUser(mContext.getContentResolver(), 1525 name, value, userHandle); 1526 } 1527 1528 void settingsSecurePutInt(String name, int value) { 1529 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1530 } 1531 1532 int settingsGlobalGetInt(String name, int def) { 1533 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1534 } 1535 1536 void settingsGlobalPutInt(String name, int value) { 1537 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1538 } 1539 1540 void settingsSecurePutString(String name, String value) { 1541 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1542 } 1543 1544 void settingsGlobalPutString(String name, String value) { 1545 Settings.Global.putString(mContext.getContentResolver(), name, value); 1546 } 1547 1548 void securityLogSetLoggingEnabledProperty(boolean enabled) { 1549 SecurityLog.setLoggingEnabledProperty(enabled); 1550 } 1551 1552 boolean securityLogGetLoggingEnabledProperty() { 1553 return SecurityLog.getLoggingEnabledProperty(); 1554 } 1555 1556 boolean securityLogIsLoggingEnabled() { 1557 return SecurityLog.isLoggingEnabled(); 1558 } 1559 } 1560 1561 /** 1562 * Instantiates the service. 1563 */ 1564 public DevicePolicyManagerService(Context context) { 1565 this(new Injector(context)); 1566 } 1567 1568 @VisibleForTesting 1569 DevicePolicyManagerService(Injector injector) { 1570 mInjector = injector; 1571 mContext = Preconditions.checkNotNull(injector.mContext); 1572 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1573 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1574 1575 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1576 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1577 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1578 mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager()); 1579 1580 mLocalService = new LocalService(); 1581 mLockPatternUtils = injector.newLockPatternUtils(); 1582 1583 mSecurityLogMonitor = new SecurityLogMonitor(this); 1584 1585 mHasFeature = mContext.getPackageManager() 1586 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1587 if (!mHasFeature) { 1588 // Skip the rest of the initialization 1589 return; 1590 } 1591 IntentFilter filter = new IntentFilter(); 1592 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1593 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1594 filter.addAction(Intent.ACTION_USER_ADDED); 1595 filter.addAction(Intent.ACTION_USER_REMOVED); 1596 filter.addAction(Intent.ACTION_USER_STARTED); 1597 filter.addAction(Intent.ACTION_USER_UNLOCKED); 1598 filter.addAction(KeyChain.ACTION_TRUST_STORE_CHANGED); 1599 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1600 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1601 filter = new IntentFilter(); 1602 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1603 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1604 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1605 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1606 filter.addDataScheme("package"); 1607 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1608 filter = new IntentFilter(); 1609 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1610 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1611 1612 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1613 } 1614 1615 /** 1616 * Creates and loads the policy data from xml. 1617 * @param userHandle the user for whom to load the policy data 1618 * @return 1619 */ 1620 @NonNull 1621 DevicePolicyData getUserData(int userHandle) { 1622 synchronized (this) { 1623 DevicePolicyData policy = mUserData.get(userHandle); 1624 if (policy == null) { 1625 policy = new DevicePolicyData(userHandle); 1626 mUserData.append(userHandle, policy); 1627 loadSettingsLocked(policy, userHandle); 1628 } 1629 return policy; 1630 } 1631 } 1632 1633 /** 1634 * Creates and loads the policy data from xml for data that is shared between 1635 * various profiles of a user. In contrast to {@link #getUserData(int)} 1636 * it allows access to data of users other than the calling user. 1637 * 1638 * This function should only be used for shared data, e.g. everything regarding 1639 * passwords and should be removed once multiple screen locks are present. 1640 * @param userHandle the user for whom to load the policy data 1641 * @return 1642 */ 1643 DevicePolicyData getUserDataUnchecked(int userHandle) { 1644 long ident = mInjector.binderClearCallingIdentity(); 1645 try { 1646 return getUserData(userHandle); 1647 } finally { 1648 mInjector.binderRestoreCallingIdentity(ident); 1649 } 1650 } 1651 1652 void removeUserData(int userHandle) { 1653 synchronized (this) { 1654 if (userHandle == UserHandle.USER_SYSTEM) { 1655 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1656 return; 1657 } 1658 mOwners.removeProfileOwner(userHandle); 1659 mOwners.writeProfileOwner(userHandle); 1660 1661 DevicePolicyData policy = mUserData.get(userHandle); 1662 if (policy != null) { 1663 mUserData.remove(userHandle); 1664 } 1665 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1666 DEVICE_POLICIES_XML); 1667 policyFile.delete(); 1668 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1669 } 1670 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1671 } 1672 1673 void loadOwners() { 1674 synchronized (this) { 1675 mOwners.load(); 1676 setDeviceOwnerSystemPropertyLocked(); 1677 findOwnerComponentIfNecessaryLocked(); 1678 migrateUserRestrictionsIfNecessaryLocked(); 1679 1680 // TODO PO may not have a class name either due to b/17652534. Address that too. 1681 1682 updateDeviceOwnerLocked(); 1683 } 1684 } 1685 1686 private void setDeviceOwnerSystemPropertyLocked() { 1687 // Device owner may still be provisioned, do not set the read-only system property yet. 1688 if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) == 0) { 1689 return; 1690 } 1691 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 1692 // always false at this point. 1693 if (StorageManager.inCryptKeeperBounce()) { 1694 return; 1695 } 1696 1697 if (!TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT))) { 1698 Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 1699 } else { 1700 if (mOwners.hasDeviceOwner()) { 1701 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "true"); 1702 Slog.i(LOG_TAG, "Set ro.device_owner property to true"); 1703 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 1704 if (mInjector.securityLogGetLoggingEnabledProperty()) { 1705 mSecurityLogMonitor.start(); 1706 } 1707 } else { 1708 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "false"); 1709 Slog.i(LOG_TAG, "Set ro.device_owner property to false"); 1710 } 1711 } 1712 } 1713 1714 private void findOwnerComponentIfNecessaryLocked() { 1715 if (!mOwners.hasDeviceOwner()) { 1716 return; 1717 } 1718 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1719 1720 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1721 return; // Already a full component name. 1722 } 1723 1724 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1725 doComponentName.getPackageName(), 1726 mOwners.getDeviceOwnerUserId()); 1727 if (doComponent == null) { 1728 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1729 } else { 1730 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1731 doComponent, 1732 mOwners.getDeviceOwnerName(), 1733 mOwners.getDeviceOwnerUserId(), 1734 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1735 mOwners.writeDeviceOwner(); 1736 if (VERBOSE_LOG) { 1737 Log.v(LOG_TAG, "Device owner component filled in"); 1738 } 1739 } 1740 } 1741 1742 /** 1743 * We didn't use to persist user restrictions for each owners but only persisted in user 1744 * manager. 1745 */ 1746 private void migrateUserRestrictionsIfNecessaryLocked() { 1747 boolean migrated = false; 1748 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 1749 // except for the "system controlled" ones. 1750 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 1751 if (VERBOSE_LOG) { 1752 Log.v(LOG_TAG, "Migrating DO user restrictions"); 1753 } 1754 migrated = true; 1755 1756 // Migrate user 0 restrictions to DO. 1757 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 1758 1759 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 1760 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 1761 1762 // Push DO user restrictions to user manager. 1763 pushUserRestrictions(UserHandle.USER_SYSTEM); 1764 1765 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 1766 } 1767 1768 // Migrate for POs. 1769 1770 // The following restrictions can be set on secondary users by the device owner, so we 1771 // assume they're not from the PO. 1772 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 1773 UserManager.DISALLOW_OUTGOING_CALLS, 1774 UserManager.DISALLOW_SMS); 1775 1776 for (UserInfo ui : mUserManager.getUsers()) { 1777 final int userId = ui.id; 1778 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 1779 if (VERBOSE_LOG) { 1780 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 1781 } 1782 migrated = true; 1783 1784 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 1785 1786 final Set<String> exceptionList = 1787 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 1788 1789 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 1790 exceptionList, /* isDeviceOwner =*/ false); 1791 1792 // Note if a secondary user has no PO but has a DA that disables camera, we 1793 // don't get here and won't push the camera user restriction to UserManager 1794 // here. That's okay because we'll push user restrictions anyway when a user 1795 // starts. But we still do it because we want to let user manager persist 1796 // upon migration. 1797 pushUserRestrictions(userId); 1798 1799 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 1800 } 1801 } 1802 if (VERBOSE_LOG && migrated) { 1803 Log.v(LOG_TAG, "User restrictions migrated."); 1804 } 1805 } 1806 1807 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 1808 Set<String> exceptionList, boolean isDeviceOwner) { 1809 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 1810 user.getIdentifier()); 1811 1812 final Bundle newBaseRestrictions = new Bundle(); 1813 final Bundle newOwnerRestrictions = new Bundle(); 1814 1815 for (String key : origRestrictions.keySet()) { 1816 if (!origRestrictions.getBoolean(key)) { 1817 continue; 1818 } 1819 final boolean canOwnerChange = isDeviceOwner 1820 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 1821 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 1822 1823 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 1824 newBaseRestrictions.putBoolean(key, true); 1825 } else { 1826 newOwnerRestrictions.putBoolean(key, true); 1827 } 1828 } 1829 1830 if (VERBOSE_LOG) { 1831 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 1832 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 1833 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 1834 } 1835 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 1836 newBaseRestrictions); 1837 1838 if (admin != null) { 1839 admin.ensureUserRestrictions().clear(); 1840 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 1841 } else { 1842 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 1843 } 1844 saveSettingsLocked(user.getIdentifier()); 1845 } 1846 1847 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 1848 final DevicePolicyData policy = getUserData(userId); 1849 final int n = policy.mAdminList.size(); 1850 ComponentName found = null; 1851 int nFound = 0; 1852 for (int i = 0; i < n; i++) { 1853 final ActiveAdmin admin = policy.mAdminList.get(i); 1854 if (packageName.equals(admin.info.getPackageName())) { 1855 // Found! 1856 if (nFound == 0) { 1857 found = admin.info.getComponent(); 1858 } 1859 nFound++; 1860 } 1861 } 1862 if (nFound > 1) { 1863 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 1864 } 1865 return found; 1866 } 1867 1868 /** 1869 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1870 * reminders. Clears alarm if no expirations are configured. 1871 */ 1872 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 1873 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 1874 final long now = System.currentTimeMillis(); 1875 final long timeToExpire = expiration - now; 1876 final long alarmTime; 1877 if (expiration == 0) { 1878 // No expirations are currently configured: Cancel alarm. 1879 alarmTime = 0; 1880 } else if (timeToExpire <= 0) { 1881 // The password has already expired: Repeat every 24 hours. 1882 alarmTime = now + MS_PER_DAY; 1883 } else { 1884 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1885 // the expiration time. 1886 long alarmInterval = timeToExpire % MS_PER_DAY; 1887 if (alarmInterval == 0) { 1888 alarmInterval = MS_PER_DAY; 1889 } 1890 alarmTime = now + alarmInterval; 1891 } 1892 1893 long token = mInjector.binderClearCallingIdentity(); 1894 try { 1895 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 1896 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1897 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1898 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1899 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1900 UserHandle.of(affectedUserHandle)); 1901 am.cancel(pi); 1902 if (alarmTime != 0) { 1903 am.set(AlarmManager.RTC, alarmTime, pi); 1904 } 1905 } finally { 1906 mInjector.binderRestoreCallingIdentity(token); 1907 } 1908 } 1909 1910 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 1911 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 1912 if (admin != null 1913 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 1914 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 1915 return admin; 1916 } 1917 return null; 1918 } 1919 1920 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 1921 if (parent) { 1922 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 1923 } 1924 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 1925 if (admin != null && parent) { 1926 admin = admin.getParentActiveAdmin(); 1927 } 1928 return admin; 1929 } 1930 1931 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 1932 throws SecurityException { 1933 final int callingUid = mInjector.binderGetCallingUid(); 1934 1935 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 1936 if (result != null) { 1937 return result; 1938 } 1939 1940 if (who != null) { 1941 final int userId = UserHandle.getUserId(callingUid); 1942 final DevicePolicyData policy = getUserData(userId); 1943 ActiveAdmin admin = policy.mAdminMap.get(who); 1944 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 1945 throw new SecurityException("Admin " + admin.info.getComponent() 1946 + " does not own the device"); 1947 } 1948 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 1949 throw new SecurityException("Admin " + admin.info.getComponent() 1950 + " does not own the profile"); 1951 } 1952 throw new SecurityException("Admin " + admin.info.getComponent() 1953 + " did not specify uses-policy for: " 1954 + admin.info.getTagForPolicy(reqPolicy)); 1955 } else { 1956 throw new SecurityException("No active admin owned by uid " 1957 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 1958 } 1959 } 1960 1961 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 1962 throws SecurityException { 1963 if (parent) { 1964 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 1965 "call APIs on the parent profile"); 1966 } 1967 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 1968 return parent ? admin.getParentActiveAdmin() : admin; 1969 } 1970 /** 1971 * Find the admin for the component and userId bit of the uid, then check 1972 * the admin's uid matches the uid. 1973 */ 1974 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 1975 final int userId = UserHandle.getUserId(uid); 1976 final DevicePolicyData policy = getUserData(userId); 1977 ActiveAdmin admin = policy.mAdminMap.get(who); 1978 if (admin == null) { 1979 throw new SecurityException("No active admin " + who); 1980 } 1981 if (admin.getUid() != uid) { 1982 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 1983 } 1984 return admin; 1985 } 1986 1987 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 1988 int uid) { 1989 // Try to find an admin which can use reqPolicy 1990 final int userId = UserHandle.getUserId(uid); 1991 final DevicePolicyData policy = getUserData(userId); 1992 if (who != null) { 1993 ActiveAdmin admin = policy.mAdminMap.get(who); 1994 if (admin == null) { 1995 throw new SecurityException("No active admin " + who); 1996 } 1997 if (admin.getUid() != uid) { 1998 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 1999 } 2000 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 2001 return admin; 2002 } 2003 } else { 2004 for (ActiveAdmin admin : policy.mAdminList) { 2005 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 2006 userId)) { 2007 return admin; 2008 } 2009 } 2010 } 2011 2012 return null; 2013 } 2014 2015 @VisibleForTesting 2016 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 2017 int userId) { 2018 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 2019 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 2020 2021 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2022 return ownsDevice; 2023 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2024 // DO always has the PO power. 2025 return ownsDevice || ownsProfile; 2026 } else { 2027 return admin.info.usesPolicy(reqPolicy); 2028 } 2029 } 2030 2031 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 2032 sendAdminCommandLocked(admin, action, null); 2033 } 2034 2035 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 2036 sendAdminCommandLocked(admin, action, null, result); 2037 } 2038 2039 /** 2040 * Send an update to one specific admin, get notified when that admin returns a result. 2041 */ 2042 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2043 BroadcastReceiver result) { 2044 Intent intent = new Intent(action); 2045 intent.setComponent(admin.info.getComponent()); 2046 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 2047 intent.putExtra("expiration", admin.passwordExpirationDate); 2048 } 2049 if (adminExtras != null) { 2050 intent.putExtras(adminExtras); 2051 } 2052 if (result != null) { 2053 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 2054 null, result, mHandler, Activity.RESULT_OK, null, null); 2055 } else { 2056 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 2057 } 2058 } 2059 2060 /** 2061 * Send an update to all admins of a user that enforce a specified policy. 2062 */ 2063 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 2064 final DevicePolicyData policy = getUserData(userHandle); 2065 final int count = policy.mAdminList.size(); 2066 if (count > 0) { 2067 for (int i = 0; i < count; i++) { 2068 final ActiveAdmin admin = policy.mAdminList.get(i); 2069 if (admin.info.usesPolicy(reqPolicy)) { 2070 sendAdminCommandLocked(admin, action); 2071 } 2072 } 2073 } 2074 } 2075 2076 /** 2077 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2078 * enforce a specified policy. 2079 */ 2080 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2081 int userHandle) { 2082 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 2083 for (int profileId : profileIds) { 2084 sendAdminCommandLocked(action, reqPolicy, profileId); 2085 } 2086 } 2087 2088 /** 2089 * Sends a broadcast to each profile that share the password unlock with the given user id. 2090 */ 2091 private void sendAdminCommandForLockscreenPoliciesLocked( 2092 String action, int reqPolicy, int userHandle) { 2093 if (isSeparateProfileChallengeEnabled(userHandle)) { 2094 sendAdminCommandLocked(action, reqPolicy, userHandle); 2095 } else { 2096 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle); 2097 } 2098 } 2099 2100 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2101 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2102 DevicePolicyData policy = getUserData(userHandle); 2103 if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) { 2104 policy.mRemovingAdmins.add(adminReceiver); 2105 sendAdminCommandLocked(admin, 2106 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2107 new BroadcastReceiver() { 2108 @Override 2109 public void onReceive(Context context, Intent intent) { 2110 removeAdminArtifacts(adminReceiver, userHandle); 2111 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2112 } 2113 }); 2114 } 2115 } 2116 2117 2118 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2119 boolean throwForMissiongPermission) { 2120 if (!mHasFeature) { 2121 return null; 2122 } 2123 enforceFullCrossUsersPermission(userHandle); 2124 ActivityInfo ai = null; 2125 try { 2126 ai = mIPackageManager.getReceiverInfo(adminName, 2127 PackageManager.GET_META_DATA | 2128 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS | 2129 PackageManager.MATCH_DIRECT_BOOT_AWARE | 2130 PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle); 2131 } catch (RemoteException e) { 2132 // shouldn't happen. 2133 } 2134 if (ai == null) { 2135 throw new IllegalArgumentException("Unknown admin: " + adminName); 2136 } 2137 2138 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2139 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2140 + permission.BIND_DEVICE_ADMIN; 2141 Slog.w(LOG_TAG, message); 2142 if (throwForMissiongPermission && 2143 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2144 throw new IllegalArgumentException(message); 2145 } 2146 } 2147 2148 try { 2149 return new DeviceAdminInfo(mContext, ai); 2150 } catch (XmlPullParserException | IOException e) { 2151 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2152 e); 2153 return null; 2154 } 2155 } 2156 2157 private JournaledFile makeJournaledFile(int userHandle) { 2158 final String base = userHandle == UserHandle.USER_SYSTEM 2159 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 2160 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2161 DEVICE_POLICIES_XML).getAbsolutePath(); 2162 if (VERBOSE_LOG) { 2163 Log.v(LOG_TAG, "Opening " + base); 2164 } 2165 return new JournaledFile(new File(base), new File(base + ".tmp")); 2166 } 2167 2168 private void saveSettingsLocked(int userHandle) { 2169 DevicePolicyData policy = getUserData(userHandle); 2170 JournaledFile journal = makeJournaledFile(userHandle); 2171 FileOutputStream stream = null; 2172 try { 2173 stream = new FileOutputStream(journal.chooseForWrite(), false); 2174 XmlSerializer out = new FastXmlSerializer(); 2175 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2176 out.startDocument(null, true); 2177 2178 out.startTag(null, "policies"); 2179 if (policy.mRestrictionsProvider != null) { 2180 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2181 policy.mRestrictionsProvider.flattenToString()); 2182 } 2183 if (policy.mUserSetupComplete) { 2184 out.attribute(null, ATTR_SETUP_COMPLETE, 2185 Boolean.toString(true)); 2186 } 2187 if (policy.mDeviceProvisioningConfigApplied) { 2188 out.attribute(null, ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED, 2189 Boolean.toString(true)); 2190 } 2191 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2192 out.attribute(null, ATTR_PROVISIONING_STATE, 2193 Integer.toString(policy.mUserProvisioningState)); 2194 } 2195 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2196 out.attribute(null, ATTR_PERMISSION_POLICY, 2197 Integer.toString(policy.mPermissionPolicy)); 2198 } 2199 if (policy.mDelegatedCertInstallerPackage != null) { 2200 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 2201 policy.mDelegatedCertInstallerPackage); 2202 } 2203 if (policy.mApplicationRestrictionsManagingPackage != null) { 2204 out.attribute(null, ATTR_APPLICATION_RESTRICTIONS_MANAGER, 2205 policy.mApplicationRestrictionsManagingPackage); 2206 } 2207 2208 final int N = policy.mAdminList.size(); 2209 for (int i=0; i<N; i++) { 2210 ActiveAdmin ap = policy.mAdminList.get(i); 2211 if (ap != null) { 2212 out.startTag(null, "admin"); 2213 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2214 ap.writeToXml(out); 2215 out.endTag(null, "admin"); 2216 } 2217 } 2218 2219 if (policy.mPasswordOwner >= 0) { 2220 out.startTag(null, "password-owner"); 2221 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2222 out.endTag(null, "password-owner"); 2223 } 2224 2225 if (policy.mFailedPasswordAttempts != 0) { 2226 out.startTag(null, "failed-password-attempts"); 2227 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2228 out.endTag(null, "failed-password-attempts"); 2229 } 2230 2231 if (policy.mActivePasswordQuality != 0 || policy.mActivePasswordLength != 0 2232 || policy.mActivePasswordUpperCase != 0 || policy.mActivePasswordLowerCase != 0 2233 || policy.mActivePasswordLetters != 0 || policy.mActivePasswordNumeric != 0 2234 || policy.mActivePasswordSymbols != 0 || policy.mActivePasswordNonLetter != 0) { 2235 out.startTag(null, "active-password"); 2236 out.attribute(null, "quality", Integer.toString(policy.mActivePasswordQuality)); 2237 out.attribute(null, "length", Integer.toString(policy.mActivePasswordLength)); 2238 out.attribute(null, "uppercase", Integer.toString(policy.mActivePasswordUpperCase)); 2239 out.attribute(null, "lowercase", Integer.toString(policy.mActivePasswordLowerCase)); 2240 out.attribute(null, "letters", Integer.toString(policy.mActivePasswordLetters)); 2241 out.attribute(null, "numeric", Integer 2242 .toString(policy.mActivePasswordNumeric)); 2243 out.attribute(null, "symbols", Integer.toString(policy.mActivePasswordSymbols)); 2244 out.attribute(null, "nonletter", Integer.toString(policy.mActivePasswordNonLetter)); 2245 out.endTag(null, "active-password"); 2246 } 2247 2248 for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) { 2249 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2250 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i)); 2251 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2252 } 2253 2254 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2255 String component = policy.mLockTaskPackages.get(i); 2256 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2257 out.attribute(null, "name", component); 2258 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2259 } 2260 2261 if (policy.mStatusBarDisabled) { 2262 out.startTag(null, TAG_STATUS_BAR); 2263 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2264 out.endTag(null, TAG_STATUS_BAR); 2265 } 2266 2267 if (policy.doNotAskCredentialsOnBoot) { 2268 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2269 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2270 } 2271 2272 for (String id : policy.mAffiliationIds) { 2273 out.startTag(null, TAG_AFFILIATION_ID); 2274 out.attribute(null, "id", id); 2275 out.endTag(null, TAG_AFFILIATION_ID); 2276 } 2277 2278 if (policy.mAdminBroadcastPending) { 2279 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2280 out.attribute(null, ATTR_VALUE, 2281 Boolean.toString(policy.mAdminBroadcastPending)); 2282 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2283 } 2284 2285 if (policy.mInitBundle != null) { 2286 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 2287 policy.mInitBundle.saveToXml(out); 2288 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 2289 } 2290 2291 out.endTag(null, "policies"); 2292 2293 out.endDocument(); 2294 stream.flush(); 2295 FileUtils.sync(stream); 2296 stream.close(); 2297 journal.commit(); 2298 sendChangedNotification(userHandle); 2299 } catch (XmlPullParserException | IOException e) { 2300 Slog.w(LOG_TAG, "failed writing file", e); 2301 try { 2302 if (stream != null) { 2303 stream.close(); 2304 } 2305 } catch (IOException ex) { 2306 // Ignore 2307 } 2308 journal.rollback(); 2309 } 2310 } 2311 2312 private void sendChangedNotification(int userHandle) { 2313 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 2314 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2315 long ident = mInjector.binderClearCallingIdentity(); 2316 try { 2317 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 2318 } finally { 2319 mInjector.binderRestoreCallingIdentity(ident); 2320 } 2321 } 2322 2323 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 2324 JournaledFile journal = makeJournaledFile(userHandle); 2325 FileInputStream stream = null; 2326 File file = journal.chooseForRead(); 2327 try { 2328 stream = new FileInputStream(file); 2329 XmlPullParser parser = Xml.newPullParser(); 2330 parser.setInput(stream, StandardCharsets.UTF_8.name()); 2331 2332 int type; 2333 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2334 && type != XmlPullParser.START_TAG) { 2335 } 2336 String tag = parser.getName(); 2337 if (!"policies".equals(tag)) { 2338 throw new XmlPullParserException( 2339 "Settings do not start with policies tag: found " + tag); 2340 } 2341 2342 // Extract the permission provider component name if available 2343 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 2344 if (permissionProvider != null) { 2345 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 2346 } 2347 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 2348 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 2349 policy.mUserSetupComplete = true; 2350 } 2351 String deviceProvisioningConfigApplied = parser.getAttributeValue(null, 2352 ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED); 2353 if (deviceProvisioningConfigApplied != null 2354 && Boolean.toString(true).equals(deviceProvisioningConfigApplied)) { 2355 policy.mDeviceProvisioningConfigApplied = true; 2356 } 2357 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 2358 if (!TextUtils.isEmpty(provisioningState)) { 2359 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 2360 } 2361 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 2362 if (!TextUtils.isEmpty(permissionPolicy)) { 2363 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 2364 } 2365 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 2366 ATTR_DELEGATED_CERT_INSTALLER); 2367 policy.mApplicationRestrictionsManagingPackage = parser.getAttributeValue(null, 2368 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 2369 2370 type = parser.next(); 2371 int outerDepth = parser.getDepth(); 2372 policy.mLockTaskPackages.clear(); 2373 policy.mAdminList.clear(); 2374 policy.mAdminMap.clear(); 2375 policy.mAffiliationIds.clear(); 2376 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2377 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2378 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2379 continue; 2380 } 2381 tag = parser.getName(); 2382 if ("admin".equals(tag)) { 2383 String name = parser.getAttributeValue(null, "name"); 2384 try { 2385 DeviceAdminInfo dai = findAdmin( 2386 ComponentName.unflattenFromString(name), userHandle, 2387 /* throwForMissionPermission= */ false); 2388 if (VERBOSE_LOG 2389 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 2390 != userHandle)) { 2391 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 2392 + dai.getActivityInfo().applicationInfo.uid + " for user " 2393 + userHandle); 2394 } 2395 if (dai != null) { 2396 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 2397 ap.readFromXml(parser); 2398 policy.mAdminMap.put(ap.info.getComponent(), ap); 2399 } 2400 } catch (RuntimeException e) { 2401 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 2402 } 2403 } else if ("failed-password-attempts".equals(tag)) { 2404 policy.mFailedPasswordAttempts = Integer.parseInt( 2405 parser.getAttributeValue(null, "value")); 2406 } else if ("password-owner".equals(tag)) { 2407 policy.mPasswordOwner = Integer.parseInt( 2408 parser.getAttributeValue(null, "value")); 2409 } else if ("active-password".equals(tag)) { 2410 policy.mActivePasswordQuality = Integer.parseInt( 2411 parser.getAttributeValue(null, "quality")); 2412 policy.mActivePasswordLength = Integer.parseInt( 2413 parser.getAttributeValue(null, "length")); 2414 policy.mActivePasswordUpperCase = Integer.parseInt( 2415 parser.getAttributeValue(null, "uppercase")); 2416 policy.mActivePasswordLowerCase = Integer.parseInt( 2417 parser.getAttributeValue(null, "lowercase")); 2418 policy.mActivePasswordLetters = Integer.parseInt( 2419 parser.getAttributeValue(null, "letters")); 2420 policy.mActivePasswordNumeric = Integer.parseInt( 2421 parser.getAttributeValue(null, "numeric")); 2422 policy.mActivePasswordSymbols = Integer.parseInt( 2423 parser.getAttributeValue(null, "symbols")); 2424 policy.mActivePasswordNonLetter = Integer.parseInt( 2425 parser.getAttributeValue(null, "nonletter")); 2426 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) { 2427 policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME)); 2428 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2429 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2430 } else if (TAG_STATUS_BAR.equals(tag)) { 2431 policy.mStatusBarDisabled = Boolean.parseBoolean( 2432 parser.getAttributeValue(null, ATTR_DISABLED)); 2433 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2434 policy.doNotAskCredentialsOnBoot = true; 2435 } else if (TAG_AFFILIATION_ID.equals(tag)) { 2436 policy.mAffiliationIds.add(parser.getAttributeValue(null, "id")); 2437 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 2438 String pending = parser.getAttributeValue(null, ATTR_VALUE); 2439 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 2440 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 2441 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 2442 } else { 2443 Slog.w(LOG_TAG, "Unknown tag: " + tag); 2444 XmlUtils.skipCurrentTag(parser); 2445 } 2446 } 2447 } catch (FileNotFoundException e) { 2448 // Don't be noisy, this is normal if we haven't defined any policies. 2449 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 2450 | IndexOutOfBoundsException e) { 2451 Slog.w(LOG_TAG, "failed parsing " + file, e); 2452 } 2453 try { 2454 if (stream != null) { 2455 stream.close(); 2456 } 2457 } catch (IOException e) { 2458 // Ignore 2459 } 2460 2461 // Generate a list of admins from the admin map 2462 policy.mAdminList.addAll(policy.mAdminMap.values()); 2463 2464 // Validate that what we stored for the password quality matches 2465 // sufficiently what is currently set. Note that this is only 2466 // a sanity check in case the two get out of sync; this should 2467 // never normally happen. 2468 final long identity = mInjector.binderClearCallingIdentity(); 2469 try { 2470 int actualPasswordQuality = mLockPatternUtils.getActivePasswordQuality(userHandle); 2471 if (actualPasswordQuality < policy.mActivePasswordQuality) { 2472 Slog.w(LOG_TAG, "Active password quality 0x" 2473 + Integer.toHexString(policy.mActivePasswordQuality) 2474 + " does not match actual quality 0x" 2475 + Integer.toHexString(actualPasswordQuality)); 2476 policy.mActivePasswordQuality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 2477 policy.mActivePasswordLength = 0; 2478 policy.mActivePasswordUpperCase = 0; 2479 policy.mActivePasswordLowerCase = 0; 2480 policy.mActivePasswordLetters = 0; 2481 policy.mActivePasswordNumeric = 0; 2482 policy.mActivePasswordSymbols = 0; 2483 policy.mActivePasswordNonLetter = 0; 2484 } 2485 } finally { 2486 mInjector.binderRestoreCallingIdentity(identity); 2487 } 2488 2489 validatePasswordOwnerLocked(policy); 2490 updateMaximumTimeToLockLocked(userHandle); 2491 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2492 if (policy.mStatusBarDisabled) { 2493 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2494 } 2495 } 2496 2497 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2498 long ident = mInjector.binderClearCallingIdentity(); 2499 try { 2500 mInjector.getIActivityManager() 2501 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2502 } catch (RemoteException e) { 2503 // Not gonna happen. 2504 } finally { 2505 mInjector.binderRestoreCallingIdentity(ident); 2506 } 2507 } 2508 2509 private void updateDeviceOwnerLocked() { 2510 long ident = mInjector.binderClearCallingIdentity(); 2511 try { 2512 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2513 // user id and also protect all other DAs too. 2514 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2515 if (deviceOwnerComponent != null) { 2516 mInjector.getIActivityManager() 2517 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2518 } 2519 } catch (RemoteException e) { 2520 // Not gonna happen. 2521 } finally { 2522 mInjector.binderRestoreCallingIdentity(ident); 2523 } 2524 } 2525 2526 static void validateQualityConstant(int quality) { 2527 switch (quality) { 2528 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2529 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2530 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2531 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2532 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2533 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2534 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2535 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2536 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 2537 return; 2538 } 2539 throw new IllegalArgumentException("Invalid quality constant: 0x" 2540 + Integer.toHexString(quality)); 2541 } 2542 2543 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2544 if (policy.mPasswordOwner >= 0) { 2545 boolean haveOwner = false; 2546 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2547 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2548 haveOwner = true; 2549 break; 2550 } 2551 } 2552 if (!haveOwner) { 2553 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2554 + " no longer active; disabling"); 2555 policy.mPasswordOwner = -1; 2556 } 2557 } 2558 } 2559 2560 @VisibleForTesting 2561 void systemReady(int phase) { 2562 if (!mHasFeature) { 2563 return; 2564 } 2565 switch (phase) { 2566 case SystemService.PHASE_LOCK_SETTINGS_READY: 2567 onLockSettingsReady(); 2568 break; 2569 case SystemService.PHASE_BOOT_COMPLETED: 2570 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2571 break; 2572 } 2573 } 2574 2575 private void onLockSettingsReady() { 2576 getUserData(UserHandle.USER_SYSTEM); 2577 loadOwners(); 2578 cleanUpOldUsers(); 2579 2580 onStartUser(UserHandle.USER_SYSTEM); 2581 2582 // Register an observer for watching for user setup complete. 2583 new SetupContentObserver(mHandler).register(); 2584 // Initialize the user setup state, to handle the upgrade case. 2585 updateUserSetupComplete(); 2586 2587 List<String> packageList; 2588 synchronized (this) { 2589 packageList = getKeepUninstalledPackagesLocked(); 2590 } 2591 if (packageList != null) { 2592 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 2593 } 2594 2595 synchronized (this) { 2596 // push the force-ephemeral-users policy to the user manager. 2597 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 2598 if (deviceOwner != null) { 2599 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 2600 } 2601 } 2602 } 2603 2604 private void ensureDeviceOwnerUserStarted() { 2605 final int userId; 2606 synchronized (this) { 2607 if (!mOwners.hasDeviceOwner()) { 2608 return; 2609 } 2610 userId = mOwners.getDeviceOwnerUserId(); 2611 } 2612 if (VERBOSE_LOG) { 2613 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2614 } 2615 if (userId != UserHandle.USER_SYSTEM) { 2616 try { 2617 mInjector.getIActivityManager().startUserInBackground(userId); 2618 2619 // STOPSHIP Prevent the DO user from being killed. 2620 2621 } catch (RemoteException e) { 2622 Slog.w(LOG_TAG, "Exception starting user", e); 2623 } 2624 } 2625 } 2626 2627 private void onStartUser(int userId) { 2628 updateScreenCaptureDisabledInWindowManager(userId, 2629 getScreenCaptureDisabled(null, userId)); 2630 pushUserRestrictions(userId); 2631 } 2632 2633 private void cleanUpOldUsers() { 2634 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2635 // before reboot 2636 Set<Integer> usersWithProfileOwners; 2637 Set<Integer> usersWithData; 2638 synchronized(this) { 2639 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2640 usersWithData = new ArraySet<>(); 2641 for (int i = 0; i < mUserData.size(); i++) { 2642 usersWithData.add(mUserData.keyAt(i)); 2643 } 2644 } 2645 List<UserInfo> allUsers = mUserManager.getUsers(); 2646 2647 Set<Integer> deletedUsers = new ArraySet<>(); 2648 deletedUsers.addAll(usersWithProfileOwners); 2649 deletedUsers.addAll(usersWithData); 2650 for (UserInfo userInfo : allUsers) { 2651 deletedUsers.remove(userInfo.id); 2652 } 2653 for (Integer userId : deletedUsers) { 2654 removeUserData(userId); 2655 } 2656 } 2657 2658 private void handlePasswordExpirationNotification(int userHandle) { 2659 synchronized (this) { 2660 final long now = System.currentTimeMillis(); 2661 2662 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 2663 userHandle, /* parent */ false); 2664 final int N = admins.size(); 2665 for (int i = 0; i < N; i++) { 2666 ActiveAdmin admin = admins.get(i); 2667 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 2668 && admin.passwordExpirationTimeout > 0L 2669 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2670 && admin.passwordExpirationDate > 0L) { 2671 sendAdminCommandLocked(admin, 2672 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2673 } 2674 } 2675 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 2676 } 2677 } 2678 2679 private class MonitoringCertNotificationTask extends AsyncTask<Integer, Void, Void> { 2680 @Override 2681 protected Void doInBackground(Integer... params) { 2682 int userHandle = params[0]; 2683 2684 if (userHandle == UserHandle.USER_ALL) { 2685 for (UserInfo userInfo : mUserManager.getUsers(true)) { 2686 manageNotification(userInfo.getUserHandle()); 2687 } 2688 } else { 2689 manageNotification(UserHandle.of(userHandle)); 2690 } 2691 return null; 2692 } 2693 2694 private void manageNotification(UserHandle userHandle) { 2695 if (!mUserManager.isUserUnlocked(userHandle)) { 2696 return; 2697 } 2698 2699 // Call out to KeyChain to check for CAs which are waiting for approval. 2700 final List<String> pendingCertificates; 2701 try { 2702 pendingCertificates = getInstalledCaCertificates(userHandle); 2703 } catch (RemoteException | RuntimeException e) { 2704 Log.e(LOG_TAG, "Could not retrieve certificates from KeyChain service", e); 2705 return; 2706 } 2707 2708 synchronized (DevicePolicyManagerService.this) { 2709 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 2710 2711 // Remove deleted certificates. Flush xml if necessary. 2712 if (policy.mAcceptedCaCertificates.retainAll(pendingCertificates)) { 2713 saveSettingsLocked(userHandle.getIdentifier()); 2714 } 2715 // Trim to approved certificates. 2716 pendingCertificates.removeAll(policy.mAcceptedCaCertificates); 2717 } 2718 2719 if (pendingCertificates.isEmpty()) { 2720 mInjector.getNotificationManager().cancelAsUser( 2721 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2722 return; 2723 } 2724 2725 // Build and show a warning notification 2726 int smallIconId; 2727 String contentText; 2728 int parentUserId = userHandle.getIdentifier(); 2729 if (getProfileOwner(userHandle.getIdentifier()) != null) { 2730 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, 2731 getProfileOwnerName(userHandle.getIdentifier())); 2732 smallIconId = R.drawable.stat_sys_certificate_info; 2733 parentUserId = getProfileParentId(userHandle.getIdentifier()); 2734 } else if (getDeviceOwnerUserId() == userHandle.getIdentifier()) { 2735 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, 2736 getDeviceOwnerName()); 2737 smallIconId = R.drawable.stat_sys_certificate_info; 2738 } else { 2739 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2740 smallIconId = android.R.drawable.stat_sys_warning; 2741 } 2742 2743 final int numberOfCertificates = pendingCertificates.size(); 2744 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2745 dialogIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2746 dialogIntent.setPackage("com.android.settings"); 2747 dialogIntent.putExtra(Settings.EXTRA_NUMBER_OF_CERTIFICATES, numberOfCertificates); 2748 dialogIntent.putExtra(Intent.EXTRA_USER_ID, userHandle.getIdentifier()); 2749 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2750 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, 2751 new UserHandle(parentUserId)); 2752 2753 final Context userContext; 2754 try { 2755 final String packageName = mContext.getPackageName(); 2756 userContext = mContext.createPackageContextAsUser(packageName, 0, userHandle); 2757 } catch (PackageManager.NameNotFoundException e) { 2758 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2759 return; 2760 } 2761 final Notification noti = new Notification.Builder(userContext) 2762 .setSmallIcon(smallIconId) 2763 .setContentTitle(mContext.getResources().getQuantityText( 2764 R.plurals.ssl_ca_cert_warning, numberOfCertificates)) 2765 .setContentText(contentText) 2766 .setContentIntent(notifyIntent) 2767 .setPriority(Notification.PRIORITY_HIGH) 2768 .setShowWhen(false) 2769 .setColor(mContext.getColor( 2770 com.android.internal.R.color.system_notification_accent_color)) 2771 .build(); 2772 2773 mInjector.getNotificationManager().notifyAsUser( 2774 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2775 } 2776 2777 private List<String> getInstalledCaCertificates(UserHandle userHandle) 2778 throws RemoteException, RuntimeException { 2779 KeyChainConnection conn = null; 2780 try { 2781 conn = KeyChain.bindAsUser(mContext, userHandle); 2782 List<ParcelableString> aliases = conn.getService().getUserCaAliases().getList(); 2783 List<String> result = new ArrayList<>(aliases.size()); 2784 for (int i = 0; i < aliases.size(); i++) { 2785 result.add(aliases.get(i).string); 2786 } 2787 return result; 2788 } catch (InterruptedException e) { 2789 Thread.currentThread().interrupt(); 2790 return null; 2791 } catch (AssertionError e) { 2792 throw new RuntimeException(e); 2793 } finally { 2794 if (conn != null) { 2795 conn.close(); 2796 } 2797 } 2798 } 2799 } 2800 2801 /** 2802 * @param adminReceiver The admin to add 2803 * @param refreshing true = update an active admin, no error 2804 */ 2805 @Override 2806 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2807 if (!mHasFeature) { 2808 return; 2809 } 2810 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2811 } 2812 2813 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2814 Bundle onEnableData) { 2815 mContext.enforceCallingOrSelfPermission( 2816 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2817 enforceFullCrossUsersPermission(userHandle); 2818 2819 DevicePolicyData policy = getUserData(userHandle); 2820 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 2821 /* throwForMissionPermission= */ true); 2822 if (info == null) { 2823 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2824 } 2825 if (!info.getActivityInfo().applicationInfo.isInternal()) { 2826 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 2827 + adminReceiver); 2828 } 2829 synchronized (this) { 2830 long ident = mInjector.binderClearCallingIdentity(); 2831 try { 2832 if (!refreshing 2833 && getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null) { 2834 throw new IllegalArgumentException("Admin is already added"); 2835 } 2836 if (policy.mRemovingAdmins.contains(adminReceiver)) { 2837 throw new IllegalArgumentException( 2838 "Trying to set an admin which is being removed"); 2839 } 2840 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 2841 policy.mAdminMap.put(adminReceiver, newAdmin); 2842 int replaceIndex = -1; 2843 final int N = policy.mAdminList.size(); 2844 for (int i=0; i < N; i++) { 2845 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2846 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2847 replaceIndex = i; 2848 break; 2849 } 2850 } 2851 if (replaceIndex == -1) { 2852 policy.mAdminList.add(newAdmin); 2853 enableIfNecessary(info.getPackageName(), userHandle); 2854 } else { 2855 policy.mAdminList.set(replaceIndex, newAdmin); 2856 } 2857 saveSettingsLocked(userHandle); 2858 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2859 onEnableData, null); 2860 } finally { 2861 mInjector.binderRestoreCallingIdentity(ident); 2862 } 2863 } 2864 } 2865 2866 @Override 2867 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2868 if (!mHasFeature) { 2869 return false; 2870 } 2871 enforceFullCrossUsersPermission(userHandle); 2872 synchronized (this) { 2873 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2874 } 2875 } 2876 2877 @Override 2878 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2879 if (!mHasFeature) { 2880 return false; 2881 } 2882 enforceFullCrossUsersPermission(userHandle); 2883 synchronized (this) { 2884 DevicePolicyData policyData = getUserData(userHandle); 2885 return policyData.mRemovingAdmins.contains(adminReceiver); 2886 } 2887 } 2888 2889 @Override 2890 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 2891 if (!mHasFeature) { 2892 return false; 2893 } 2894 enforceFullCrossUsersPermission(userHandle); 2895 synchronized (this) { 2896 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2897 if (administrator == null) { 2898 throw new SecurityException("No active admin " + adminReceiver); 2899 } 2900 return administrator.info.usesPolicy(policyId); 2901 } 2902 } 2903 2904 @Override 2905 @SuppressWarnings("unchecked") 2906 public List<ComponentName> getActiveAdmins(int userHandle) { 2907 if (!mHasFeature) { 2908 return Collections.EMPTY_LIST; 2909 } 2910 2911 enforceFullCrossUsersPermission(userHandle); 2912 synchronized (this) { 2913 DevicePolicyData policy = getUserData(userHandle); 2914 final int N = policy.mAdminList.size(); 2915 if (N <= 0) { 2916 return null; 2917 } 2918 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 2919 for (int i=0; i<N; i++) { 2920 res.add(policy.mAdminList.get(i).info.getComponent()); 2921 } 2922 return res; 2923 } 2924 } 2925 2926 @Override 2927 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 2928 if (!mHasFeature) { 2929 return false; 2930 } 2931 enforceFullCrossUsersPermission(userHandle); 2932 synchronized (this) { 2933 DevicePolicyData policy = getUserData(userHandle); 2934 final int N = policy.mAdminList.size(); 2935 for (int i=0; i<N; i++) { 2936 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 2937 return true; 2938 } 2939 } 2940 return false; 2941 } 2942 } 2943 2944 public void forceRemoveActiveAdmin(ComponentName adminReceiver, int userHandle) { 2945 if (!mHasFeature) { 2946 return; 2947 } 2948 Preconditions.checkNotNull(adminReceiver, "ComponentName is null"); 2949 enforceShell("forceRemoveActiveAdmin"); 2950 long ident = mInjector.binderClearCallingIdentity(); 2951 try { 2952 if (!isPackageTestOnly(adminReceiver.getPackageName(), userHandle)) { 2953 throw new SecurityException("Attempt to remove non-test admin " 2954 + adminReceiver + " " + userHandle); 2955 } 2956 // If admin is a device or profile owner tidy that up first. 2957 synchronized (this) { 2958 if (isDeviceOwner(adminReceiver, userHandle)) { 2959 clearDeviceOwnerLocked(getDeviceOwnerAdminLocked(), userHandle); 2960 } 2961 if (isProfileOwner(adminReceiver, userHandle)) { 2962 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, 2963 userHandle, /* parent */ false); 2964 clearProfileOwnerLocked(admin, userHandle); 2965 } 2966 } 2967 // Remove the admin skipping sending the broadcast. 2968 removeAdminArtifacts(adminReceiver, userHandle); 2969 Slog.i(LOG_TAG, "Admin " + adminReceiver + " removed from user " + userHandle); 2970 } finally { 2971 mInjector.binderRestoreCallingIdentity(ident); 2972 } 2973 } 2974 2975 private boolean isPackageTestOnly(String packageName, int userHandle) { 2976 final ApplicationInfo ai; 2977 try { 2978 ai = mIPackageManager.getApplicationInfo(packageName, 2979 (PackageManager.MATCH_DIRECT_BOOT_AWARE 2980 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE), userHandle); 2981 } catch (RemoteException e) { 2982 throw new IllegalStateException(e); 2983 } 2984 if (ai == null) { 2985 throw new IllegalStateException("Couldn't find package to remove admin " 2986 + packageName + " " + userHandle); 2987 } 2988 return (ai.flags & ApplicationInfo.FLAG_TEST_ONLY) != 0; 2989 } 2990 2991 private void enforceShell(String method) { 2992 final int callingUid = Binder.getCallingUid(); 2993 if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) { 2994 throw new SecurityException("Non-shell user attempted to call " + method); 2995 } 2996 } 2997 2998 @Override 2999 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 3000 if (!mHasFeature) { 3001 return; 3002 } 3003 enforceFullCrossUsersPermission(userHandle); 3004 enforceUserUnlocked(userHandle); 3005 synchronized (this) { 3006 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3007 if (admin == null) { 3008 return; 3009 } 3010 // Active device/profile owners must remain active admins. 3011 if (isDeviceOwner(adminReceiver, userHandle) 3012 || isProfileOwner(adminReceiver, userHandle)) { 3013 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 3014 adminReceiver); 3015 return; 3016 } 3017 if (admin.getUid() != mInjector.binderGetCallingUid()) { 3018 mContext.enforceCallingOrSelfPermission( 3019 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3020 } 3021 long ident = mInjector.binderClearCallingIdentity(); 3022 try { 3023 removeActiveAdminLocked(adminReceiver, userHandle); 3024 } finally { 3025 mInjector.binderRestoreCallingIdentity(ident); 3026 } 3027 } 3028 } 3029 3030 @Override 3031 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 3032 ComponentName profileOwner = getProfileOwner(userHandle); 3033 // Profile challenge is supported on N or newer release. 3034 return profileOwner != null && 3035 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 3036 } 3037 3038 @Override 3039 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 3040 if (!mHasFeature) { 3041 return; 3042 } 3043 Preconditions.checkNotNull(who, "ComponentName is null"); 3044 validateQualityConstant(quality); 3045 3046 synchronized (this) { 3047 ActiveAdmin ap = getActiveAdminForCallerLocked( 3048 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3049 if (ap.passwordQuality != quality) { 3050 ap.passwordQuality = quality; 3051 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3052 } 3053 } 3054 } 3055 3056 @Override 3057 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 3058 if (!mHasFeature) { 3059 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3060 } 3061 enforceFullCrossUsersPermission(userHandle); 3062 synchronized (this) { 3063 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3064 3065 if (who != null) { 3066 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3067 return admin != null ? admin.passwordQuality : mode; 3068 } 3069 3070 // Return the strictest policy across all participating admins. 3071 List<ActiveAdmin> admins = 3072 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3073 final int N = admins.size(); 3074 for (int i = 0; i < N; i++) { 3075 ActiveAdmin admin = admins.get(i); 3076 if (mode < admin.passwordQuality) { 3077 mode = admin.passwordQuality; 3078 } 3079 } 3080 return mode; 3081 } 3082 } 3083 3084 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 3085 int userHandle, boolean parent) { 3086 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 3087 // If this user has a separate challenge, only return its restrictions. 3088 return getUserDataUnchecked(userHandle).mAdminList; 3089 } else { 3090 // Return all admins for this user and the profiles that are visible from this 3091 // user that do not use a separate work challenge. 3092 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 3093 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3094 DevicePolicyData policy = getUserData(userInfo.id); 3095 if (!userInfo.isManagedProfile()) { 3096 admins.addAll(policy.mAdminList); 3097 } else { 3098 // For managed profiles, we always include the policies set on the parent 3099 // profile. Additionally, we include the ones set on the managed profile 3100 // if no separate challenge is in place. 3101 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 3102 final int N = policy.mAdminList.size(); 3103 for (int i = 0; i < N; i++) { 3104 ActiveAdmin admin = policy.mAdminList.get(i); 3105 if (admin.hasParentActiveAdmin()) { 3106 admins.add(admin.getParentActiveAdmin()); 3107 } 3108 if (!hasSeparateChallenge) { 3109 admins.add(admin); 3110 } 3111 } 3112 } 3113 } 3114 return admins; 3115 } 3116 } 3117 3118 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 3119 long ident = mInjector.binderClearCallingIdentity(); 3120 try { 3121 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 3122 } finally { 3123 mInjector.binderRestoreCallingIdentity(ident); 3124 } 3125 } 3126 3127 @Override 3128 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 3129 if (!mHasFeature) { 3130 return; 3131 } 3132 Preconditions.checkNotNull(who, "ComponentName is null"); 3133 synchronized (this) { 3134 ActiveAdmin ap = getActiveAdminForCallerLocked( 3135 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3136 if (ap.minimumPasswordLength != length) { 3137 ap.minimumPasswordLength = length; 3138 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3139 } 3140 } 3141 } 3142 3143 @Override 3144 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 3145 if (!mHasFeature) { 3146 return 0; 3147 } 3148 enforceFullCrossUsersPermission(userHandle); 3149 synchronized (this) { 3150 int length = 0; 3151 3152 if (who != null) { 3153 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3154 return admin != null ? admin.minimumPasswordLength : length; 3155 } 3156 3157 // Return the strictest policy across all participating admins. 3158 List<ActiveAdmin> admins = 3159 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3160 final int N = admins.size(); 3161 for (int i = 0; i < N; i++) { 3162 ActiveAdmin admin = admins.get(i); 3163 if (length < admin.minimumPasswordLength) { 3164 length = admin.minimumPasswordLength; 3165 } 3166 } 3167 return length; 3168 } 3169 } 3170 3171 @Override 3172 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 3173 if (!mHasFeature) { 3174 return; 3175 } 3176 Preconditions.checkNotNull(who, "ComponentName is null"); 3177 synchronized (this) { 3178 ActiveAdmin ap = getActiveAdminForCallerLocked( 3179 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3180 if (ap.passwordHistoryLength != length) { 3181 ap.passwordHistoryLength = length; 3182 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3183 } 3184 } 3185 } 3186 3187 @Override 3188 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 3189 if (!mHasFeature) { 3190 return 0; 3191 } 3192 enforceFullCrossUsersPermission(userHandle); 3193 synchronized (this) { 3194 int length = 0; 3195 3196 if (who != null) { 3197 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3198 return admin != null ? admin.passwordHistoryLength : length; 3199 } 3200 3201 // Return the strictest policy across all participating admins. 3202 List<ActiveAdmin> admins = 3203 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3204 final int N = admins.size(); 3205 for (int i = 0; i < N; i++) { 3206 ActiveAdmin admin = admins.get(i); 3207 if (length < admin.passwordHistoryLength) { 3208 length = admin.passwordHistoryLength; 3209 } 3210 } 3211 3212 return length; 3213 } 3214 } 3215 3216 @Override 3217 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 3218 if (!mHasFeature) { 3219 return; 3220 } 3221 Preconditions.checkNotNull(who, "ComponentName is null"); 3222 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 3223 final int userHandle = mInjector.userHandleGetCallingUserId(); 3224 synchronized (this) { 3225 ActiveAdmin ap = getActiveAdminForCallerLocked( 3226 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 3227 // Calling this API automatically bumps the expiration date 3228 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3229 ap.passwordExpirationDate = expiration; 3230 ap.passwordExpirationTimeout = timeout; 3231 if (timeout > 0L) { 3232 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 3233 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 3234 .format(new Date(expiration))); 3235 } 3236 saveSettingsLocked(userHandle); 3237 3238 // in case this is the first one, set the alarm on the appropriate user. 3239 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 3240 } 3241 } 3242 3243 /** 3244 * Return a single admin's expiration cycle time, or the min of all cycle times. 3245 * Returns 0 if not configured. 3246 */ 3247 @Override 3248 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 3249 if (!mHasFeature) { 3250 return 0L; 3251 } 3252 enforceFullCrossUsersPermission(userHandle); 3253 synchronized (this) { 3254 long timeout = 0L; 3255 3256 if (who != null) { 3257 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3258 return admin != null ? admin.passwordExpirationTimeout : timeout; 3259 } 3260 3261 // Return the strictest policy across all participating admins. 3262 List<ActiveAdmin> admins = 3263 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3264 final int N = admins.size(); 3265 for (int i = 0; i < N; i++) { 3266 ActiveAdmin admin = admins.get(i); 3267 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 3268 && timeout > admin.passwordExpirationTimeout)) { 3269 timeout = admin.passwordExpirationTimeout; 3270 } 3271 } 3272 return timeout; 3273 } 3274 } 3275 3276 @Override 3277 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3278 final int userId = UserHandle.getCallingUserId(); 3279 List<String> changedProviders = null; 3280 3281 synchronized (this) { 3282 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3283 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3284 if (activeAdmin.crossProfileWidgetProviders == null) { 3285 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 3286 } 3287 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3288 if (!providers.contains(packageName)) { 3289 providers.add(packageName); 3290 changedProviders = new ArrayList<>(providers); 3291 saveSettingsLocked(userId); 3292 } 3293 } 3294 3295 if (changedProviders != null) { 3296 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3297 return true; 3298 } 3299 3300 return false; 3301 } 3302 3303 @Override 3304 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3305 final int userId = UserHandle.getCallingUserId(); 3306 List<String> changedProviders = null; 3307 3308 synchronized (this) { 3309 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3310 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3311 if (activeAdmin.crossProfileWidgetProviders == null) { 3312 return false; 3313 } 3314 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3315 if (providers.remove(packageName)) { 3316 changedProviders = new ArrayList<>(providers); 3317 saveSettingsLocked(userId); 3318 } 3319 } 3320 3321 if (changedProviders != null) { 3322 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3323 return true; 3324 } 3325 3326 return false; 3327 } 3328 3329 @Override 3330 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 3331 synchronized (this) { 3332 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3333 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3334 if (activeAdmin.crossProfileWidgetProviders == null 3335 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3336 return null; 3337 } 3338 if (mInjector.binderIsCallingUidMyUid()) { 3339 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 3340 } else { 3341 return activeAdmin.crossProfileWidgetProviders; 3342 } 3343 } 3344 } 3345 3346 /** 3347 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 3348 * Returns 0 if not configured. 3349 */ 3350 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 3351 long timeout = 0L; 3352 3353 if (who != null) { 3354 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3355 return admin != null ? admin.passwordExpirationDate : timeout; 3356 } 3357 3358 // Return the strictest policy across all participating admins. 3359 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3360 final int N = admins.size(); 3361 for (int i = 0; i < N; i++) { 3362 ActiveAdmin admin = admins.get(i); 3363 if (timeout == 0L || (admin.passwordExpirationDate != 0 3364 && timeout > admin.passwordExpirationDate)) { 3365 timeout = admin.passwordExpirationDate; 3366 } 3367 } 3368 return timeout; 3369 } 3370 3371 @Override 3372 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 3373 if (!mHasFeature) { 3374 return 0L; 3375 } 3376 enforceFullCrossUsersPermission(userHandle); 3377 synchronized (this) { 3378 return getPasswordExpirationLocked(who, userHandle, parent); 3379 } 3380 } 3381 3382 @Override 3383 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 3384 if (!mHasFeature) { 3385 return; 3386 } 3387 Preconditions.checkNotNull(who, "ComponentName is null"); 3388 synchronized (this) { 3389 ActiveAdmin ap = getActiveAdminForCallerLocked( 3390 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3391 if (ap.minimumPasswordUpperCase != length) { 3392 ap.minimumPasswordUpperCase = length; 3393 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3394 } 3395 } 3396 } 3397 3398 @Override 3399 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 3400 if (!mHasFeature) { 3401 return 0; 3402 } 3403 enforceFullCrossUsersPermission(userHandle); 3404 synchronized (this) { 3405 int length = 0; 3406 3407 if (who != null) { 3408 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3409 return admin != null ? admin.minimumPasswordUpperCase : length; 3410 } 3411 3412 // Return the strictest policy across all participating admins. 3413 List<ActiveAdmin> admins = 3414 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3415 final int N = admins.size(); 3416 for (int i = 0; i < N; i++) { 3417 ActiveAdmin admin = admins.get(i); 3418 if (length < admin.minimumPasswordUpperCase) { 3419 length = admin.minimumPasswordUpperCase; 3420 } 3421 } 3422 return length; 3423 } 3424 } 3425 3426 @Override 3427 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 3428 Preconditions.checkNotNull(who, "ComponentName is null"); 3429 synchronized (this) { 3430 ActiveAdmin ap = getActiveAdminForCallerLocked( 3431 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3432 if (ap.minimumPasswordLowerCase != length) { 3433 ap.minimumPasswordLowerCase = length; 3434 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3435 } 3436 } 3437 } 3438 3439 @Override 3440 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 3441 if (!mHasFeature) { 3442 return 0; 3443 } 3444 enforceFullCrossUsersPermission(userHandle); 3445 synchronized (this) { 3446 int length = 0; 3447 3448 if (who != null) { 3449 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3450 return admin != null ? admin.minimumPasswordLowerCase : length; 3451 } 3452 3453 // Return the strictest policy across all participating admins. 3454 List<ActiveAdmin> admins = 3455 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3456 final int N = admins.size(); 3457 for (int i = 0; i < N; i++) { 3458 ActiveAdmin admin = admins.get(i); 3459 if (length < admin.minimumPasswordLowerCase) { 3460 length = admin.minimumPasswordLowerCase; 3461 } 3462 } 3463 return length; 3464 } 3465 } 3466 3467 @Override 3468 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 3469 if (!mHasFeature) { 3470 return; 3471 } 3472 Preconditions.checkNotNull(who, "ComponentName is null"); 3473 synchronized (this) { 3474 ActiveAdmin ap = getActiveAdminForCallerLocked( 3475 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3476 if (ap.minimumPasswordLetters != length) { 3477 ap.minimumPasswordLetters = length; 3478 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3479 } 3480 } 3481 } 3482 3483 @Override 3484 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 3485 if (!mHasFeature) { 3486 return 0; 3487 } 3488 enforceFullCrossUsersPermission(userHandle); 3489 synchronized (this) { 3490 int length = 0; 3491 3492 if (who != null) { 3493 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3494 return admin != null ? admin.minimumPasswordLetters : length; 3495 } 3496 3497 // Return the strictest policy across all participating admins. 3498 List<ActiveAdmin> admins = 3499 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3500 final int N = admins.size(); 3501 for (int i = 0; i < N; i++) { 3502 ActiveAdmin admin = admins.get(i); 3503 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3504 continue; 3505 } 3506 if (length < admin.minimumPasswordLetters) { 3507 length = admin.minimumPasswordLetters; 3508 } 3509 } 3510 return length; 3511 } 3512 } 3513 3514 @Override 3515 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 3516 if (!mHasFeature) { 3517 return; 3518 } 3519 Preconditions.checkNotNull(who, "ComponentName is null"); 3520 synchronized (this) { 3521 ActiveAdmin ap = getActiveAdminForCallerLocked( 3522 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3523 if (ap.minimumPasswordNumeric != length) { 3524 ap.minimumPasswordNumeric = length; 3525 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3526 } 3527 } 3528 } 3529 3530 @Override 3531 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 3532 if (!mHasFeature) { 3533 return 0; 3534 } 3535 enforceFullCrossUsersPermission(userHandle); 3536 synchronized (this) { 3537 int length = 0; 3538 3539 if (who != null) { 3540 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3541 return admin != null ? admin.minimumPasswordNumeric : length; 3542 } 3543 3544 // Return the strictest policy across all participating admins. 3545 List<ActiveAdmin> admins = 3546 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3547 final int N = admins.size(); 3548 for (int i = 0; i < N; i++) { 3549 ActiveAdmin admin = admins.get(i); 3550 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3551 continue; 3552 } 3553 if (length < admin.minimumPasswordNumeric) { 3554 length = admin.minimumPasswordNumeric; 3555 } 3556 } 3557 return length; 3558 } 3559 } 3560 3561 @Override 3562 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 3563 if (!mHasFeature) { 3564 return; 3565 } 3566 Preconditions.checkNotNull(who, "ComponentName is null"); 3567 synchronized (this) { 3568 ActiveAdmin ap = getActiveAdminForCallerLocked( 3569 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3570 if (ap.minimumPasswordSymbols != length) { 3571 ap.minimumPasswordSymbols = length; 3572 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3573 } 3574 } 3575 } 3576 3577 @Override 3578 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 3579 if (!mHasFeature) { 3580 return 0; 3581 } 3582 enforceFullCrossUsersPermission(userHandle); 3583 synchronized (this) { 3584 int length = 0; 3585 3586 if (who != null) { 3587 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3588 return admin != null ? admin.minimumPasswordSymbols : length; 3589 } 3590 3591 // Return the strictest policy across all participating admins. 3592 List<ActiveAdmin> admins = 3593 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3594 final int N = admins.size(); 3595 for (int i = 0; i < N; i++) { 3596 ActiveAdmin admin = admins.get(i); 3597 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3598 continue; 3599 } 3600 if (length < admin.minimumPasswordSymbols) { 3601 length = admin.minimumPasswordSymbols; 3602 } 3603 } 3604 return length; 3605 } 3606 } 3607 3608 @Override 3609 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 3610 if (!mHasFeature) { 3611 return; 3612 } 3613 Preconditions.checkNotNull(who, "ComponentName is null"); 3614 synchronized (this) { 3615 ActiveAdmin ap = getActiveAdminForCallerLocked( 3616 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3617 if (ap.minimumPasswordNonLetter != length) { 3618 ap.minimumPasswordNonLetter = length; 3619 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3620 } 3621 } 3622 } 3623 3624 @Override 3625 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 3626 if (!mHasFeature) { 3627 return 0; 3628 } 3629 enforceFullCrossUsersPermission(userHandle); 3630 synchronized (this) { 3631 int length = 0; 3632 3633 if (who != null) { 3634 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3635 return admin != null ? admin.minimumPasswordNonLetter : length; 3636 } 3637 3638 // Return the strictest policy across all participating admins. 3639 List<ActiveAdmin> admins = 3640 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3641 final int N = admins.size(); 3642 for (int i = 0; i < N; i++) { 3643 ActiveAdmin admin = admins.get(i); 3644 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3645 continue; 3646 } 3647 if (length < admin.minimumPasswordNonLetter) { 3648 length = admin.minimumPasswordNonLetter; 3649 } 3650 } 3651 return length; 3652 } 3653 } 3654 3655 @Override 3656 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 3657 if (!mHasFeature) { 3658 return true; 3659 } 3660 enforceFullCrossUsersPermission(userHandle); 3661 3662 synchronized (this) { 3663 // This API can only be called by an active device admin, 3664 // so try to retrieve it to check that the caller is one. 3665 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3666 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3667 return isActivePasswordSufficientForUserLocked(policy, userHandle, parent); 3668 } 3669 } 3670 3671 @Override 3672 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 3673 if (!mHasFeature) { 3674 return true; 3675 } 3676 enforceFullCrossUsersPermission(userHandle); 3677 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 3678 3679 synchronized (this) { 3680 int targetUser = getProfileParentId(userHandle); 3681 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false)); 3682 return isActivePasswordSufficientForUserLocked(policy, targetUser, false); 3683 } 3684 } 3685 3686 private boolean isActivePasswordSufficientForUserLocked( 3687 DevicePolicyData policy, int userHandle, boolean parent) { 3688 final int requiredPasswordQuality = getPasswordQuality(null, userHandle, parent); 3689 if (policy.mActivePasswordQuality < requiredPasswordQuality) { 3690 return false; 3691 } 3692 if (requiredPasswordQuality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC 3693 && policy.mActivePasswordLength < getPasswordMinimumLength( 3694 null, userHandle, parent)) { 3695 return false; 3696 } 3697 if (requiredPasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3698 return true; 3699 } 3700 return policy.mActivePasswordUpperCase >= getPasswordMinimumUpperCase( 3701 null, userHandle, parent) 3702 && policy.mActivePasswordLowerCase >= getPasswordMinimumLowerCase( 3703 null, userHandle, parent) 3704 && policy.mActivePasswordLetters >= getPasswordMinimumLetters( 3705 null, userHandle, parent) 3706 && policy.mActivePasswordNumeric >= getPasswordMinimumNumeric( 3707 null, userHandle, parent) 3708 && policy.mActivePasswordSymbols >= getPasswordMinimumSymbols( 3709 null, userHandle, parent) 3710 && policy.mActivePasswordNonLetter >= getPasswordMinimumNonLetter( 3711 null, userHandle, parent); 3712 } 3713 3714 @Override 3715 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 3716 enforceFullCrossUsersPermission(userHandle); 3717 synchronized (this) { 3718 if (!isCallerWithSystemUid()) { 3719 // This API can only be called by an active device admin, 3720 // so try to retrieve it to check that the caller is one. 3721 getActiveAdminForCallerLocked( 3722 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 3723 } 3724 3725 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3726 3727 return policy.mFailedPasswordAttempts; 3728 } 3729 } 3730 3731 @Override 3732 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 3733 if (!mHasFeature) { 3734 return; 3735 } 3736 Preconditions.checkNotNull(who, "ComponentName is null"); 3737 synchronized (this) { 3738 // This API can only be called by an active device admin, 3739 // so try to retrieve it to check that the caller is one. 3740 getActiveAdminForCallerLocked( 3741 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 3742 ActiveAdmin ap = getActiveAdminForCallerLocked( 3743 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 3744 if (ap.maximumFailedPasswordsForWipe != num) { 3745 ap.maximumFailedPasswordsForWipe = num; 3746 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3747 } 3748 } 3749 } 3750 3751 @Override 3752 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 3753 if (!mHasFeature) { 3754 return 0; 3755 } 3756 enforceFullCrossUsersPermission(userHandle); 3757 synchronized (this) { 3758 ActiveAdmin admin = (who != null) 3759 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 3760 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 3761 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 3762 } 3763 } 3764 3765 @Override 3766 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 3767 if (!mHasFeature) { 3768 return UserHandle.USER_NULL; 3769 } 3770 enforceFullCrossUsersPermission(userHandle); 3771 synchronized (this) { 3772 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 3773 userHandle, parent); 3774 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 3775 } 3776 } 3777 3778 /** 3779 * Returns the admin with the strictest policy on maximum failed passwords for: 3780 * <ul> 3781 * <li>this user if it has a separate profile challenge, or 3782 * <li>this user and all profiles that don't have their own challenge otherwise. 3783 * </ul> 3784 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 3785 * the primary profile. 3786 * Returns {@code null} if no participating admin has that policy set. 3787 */ 3788 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 3789 int userHandle, boolean parent) { 3790 int count = 0; 3791 ActiveAdmin strictestAdmin = null; 3792 3793 // Return the strictest policy across all participating admins. 3794 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3795 final int N = admins.size(); 3796 for (int i = 0; i < N; i++) { 3797 ActiveAdmin admin = admins.get(i); 3798 if (admin.maximumFailedPasswordsForWipe == 3799 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 3800 continue; // No max number of failed passwords policy set for this profile. 3801 } 3802 3803 // We always favor the primary profile if several profiles have the same value set. 3804 int userId = admin.getUserHandle().getIdentifier(); 3805 if (count == 0 || 3806 count > admin.maximumFailedPasswordsForWipe || 3807 (count == admin.maximumFailedPasswordsForWipe && 3808 getUserInfo(userId).isPrimary())) { 3809 count = admin.maximumFailedPasswordsForWipe; 3810 strictestAdmin = admin; 3811 } 3812 } 3813 return strictestAdmin; 3814 } 3815 3816 private UserInfo getUserInfo(@UserIdInt int userId) { 3817 final long token = mInjector.binderClearCallingIdentity(); 3818 try { 3819 return mUserManager.getUserInfo(userId); 3820 } finally { 3821 mInjector.binderRestoreCallingIdentity(token); 3822 } 3823 } 3824 3825 @Override 3826 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 3827 if (!mHasFeature) { 3828 return false; 3829 } 3830 final int callingUid = mInjector.binderGetCallingUid(); 3831 final int userHandle = mInjector.userHandleGetCallingUserId(); 3832 3833 String password = passwordOrNull != null ? passwordOrNull : ""; 3834 3835 // Password resetting to empty/null is not allowed for managed profiles. 3836 if (TextUtils.isEmpty(password)) { 3837 enforceNotManagedProfile(userHandle, "clear the active password"); 3838 } 3839 3840 int quality; 3841 synchronized (this) { 3842 // If caller has PO (or DO) it can change the password, so see if that's the case first. 3843 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 3844 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 3845 final boolean preN; 3846 if (admin != null) { 3847 preN = getTargetSdk(admin.info.getPackageName(), 3848 userHandle) <= android.os.Build.VERSION_CODES.M; 3849 } else { 3850 // Otherwise, make sure the caller has any active admin with the right policy. 3851 admin = getActiveAdminForCallerLocked(null, 3852 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3853 preN = getTargetSdk(admin.info.getPackageName(), 3854 userHandle) <= android.os.Build.VERSION_CODES.M; 3855 3856 // As of N, password resetting to empty/null is not allowed anymore. 3857 // TODO Should we allow DO/PO to set an empty password? 3858 if (TextUtils.isEmpty(password)) { 3859 if (!preN) { 3860 throw new SecurityException("Cannot call with null password"); 3861 } else { 3862 Slog.e(LOG_TAG, "Cannot call with null password"); 3863 return false; 3864 } 3865 } 3866 // As of N, password cannot be changed by the admin if it is already set. 3867 if (isLockScreenSecureUnchecked(userHandle)) { 3868 if (!preN) { 3869 throw new SecurityException("Admin cannot change current password"); 3870 } else { 3871 Slog.e(LOG_TAG, "Admin cannot change current password"); 3872 return false; 3873 } 3874 } 3875 } 3876 // Do not allow to reset password when current user has a managed profile 3877 if (!isManagedProfile(userHandle)) { 3878 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3879 if (userInfo.isManagedProfile()) { 3880 if (!preN) { 3881 throw new IllegalStateException( 3882 "Cannot reset password on user has managed profile"); 3883 } else { 3884 Slog.e(LOG_TAG, "Cannot reset password on user has managed profile"); 3885 return false; 3886 } 3887 } 3888 } 3889 } 3890 // Do not allow to reset password when user is locked 3891 if (!mUserManager.isUserUnlocked(userHandle)) { 3892 if (!preN) { 3893 throw new IllegalStateException("Cannot reset password when user is locked"); 3894 } else { 3895 Slog.e(LOG_TAG, "Cannot reset password when user is locked"); 3896 return false; 3897 } 3898 } 3899 3900 quality = getPasswordQuality(null, userHandle, /* parent */ false); 3901 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 3902 quality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3903 } 3904 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 3905 int realQuality = LockPatternUtils.computePasswordQuality(password); 3906 if (realQuality < quality 3907 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3908 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 3909 + Integer.toHexString(realQuality) 3910 + " does not meet required quality 0x" 3911 + Integer.toHexString(quality)); 3912 return false; 3913 } 3914 quality = Math.max(realQuality, quality); 3915 } 3916 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 3917 if (password.length() < length) { 3918 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 3919 + " does not meet required length " + length); 3920 return false; 3921 } 3922 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3923 int letters = 0; 3924 int uppercase = 0; 3925 int lowercase = 0; 3926 int numbers = 0; 3927 int symbols = 0; 3928 int nonletter = 0; 3929 for (int i = 0; i < password.length(); i++) { 3930 char c = password.charAt(i); 3931 if (c >= 'A' && c <= 'Z') { 3932 letters++; 3933 uppercase++; 3934 } else if (c >= 'a' && c <= 'z') { 3935 letters++; 3936 lowercase++; 3937 } else if (c >= '0' && c <= '9') { 3938 numbers++; 3939 nonletter++; 3940 } else { 3941 symbols++; 3942 nonletter++; 3943 } 3944 } 3945 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 3946 if(letters < neededLetters) { 3947 Slog.w(LOG_TAG, "resetPassword: number of letters " + letters 3948 + " does not meet required number of letters " + neededLetters); 3949 return false; 3950 } 3951 int neededNumbers = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 3952 if (numbers < neededNumbers) { 3953 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + numbers 3954 + " does not meet required number of numerical digits " 3955 + neededNumbers); 3956 return false; 3957 } 3958 int neededLowerCase = getPasswordMinimumLowerCase( 3959 null, userHandle, /* parent */ false); 3960 if (lowercase < neededLowerCase) { 3961 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " + lowercase 3962 + " does not meet required number of lowercase letters " 3963 + neededLowerCase); 3964 return false; 3965 } 3966 int neededUpperCase = getPasswordMinimumUpperCase( 3967 null, userHandle, /* parent */ false); 3968 if (uppercase < neededUpperCase) { 3969 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " + uppercase 3970 + " does not meet required number of uppercase letters " 3971 + neededUpperCase); 3972 return false; 3973 } 3974 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 3975 if (symbols < neededSymbols) { 3976 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + symbols 3977 + " does not meet required number of special symbols " + neededSymbols); 3978 return false; 3979 } 3980 int neededNonLetter = getPasswordMinimumNonLetter( 3981 null, userHandle, /* parent */ false); 3982 if (nonletter < neededNonLetter) { 3983 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " + nonletter 3984 + " does not meet required number of non-letter characters " 3985 + neededNonLetter); 3986 return false; 3987 } 3988 } 3989 } 3990 3991 DevicePolicyData policy = getUserData(userHandle); 3992 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 3993 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 3994 return false; 3995 } 3996 3997 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 3998 boolean doNotAskCredentialsOnBoot = 3999 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 4000 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 4001 setDoNotAskCredentialsOnBoot(); 4002 } 4003 4004 // Don't do this with the lock held, because it is going to call 4005 // back in to the service. 4006 final long ident = mInjector.binderClearCallingIdentity(); 4007 try { 4008 if (!TextUtils.isEmpty(password)) { 4009 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 4010 } else { 4011 mLockPatternUtils.clearLock(userHandle); 4012 } 4013 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 4014 if (requireEntry) { 4015 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 4016 UserHandle.USER_ALL); 4017 } 4018 synchronized (this) { 4019 int newOwner = requireEntry ? callingUid : -1; 4020 if (policy.mPasswordOwner != newOwner) { 4021 policy.mPasswordOwner = newOwner; 4022 saveSettingsLocked(userHandle); 4023 } 4024 } 4025 } finally { 4026 mInjector.binderRestoreCallingIdentity(ident); 4027 } 4028 4029 return true; 4030 } 4031 4032 private boolean isLockScreenSecureUnchecked(int userId) { 4033 long ident = mInjector.binderClearCallingIdentity(); 4034 try { 4035 return mLockPatternUtils.isSecure(userId); 4036 } finally { 4037 mInjector.binderRestoreCallingIdentity(ident); 4038 } 4039 } 4040 4041 private void setDoNotAskCredentialsOnBoot() { 4042 synchronized (this) { 4043 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4044 if (!policyData.doNotAskCredentialsOnBoot) { 4045 policyData.doNotAskCredentialsOnBoot = true; 4046 saveSettingsLocked(UserHandle.USER_SYSTEM); 4047 } 4048 } 4049 } 4050 4051 @Override 4052 public boolean getDoNotAskCredentialsOnBoot() { 4053 mContext.enforceCallingOrSelfPermission( 4054 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 4055 synchronized (this) { 4056 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4057 return policyData.doNotAskCredentialsOnBoot; 4058 } 4059 } 4060 4061 @Override 4062 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 4063 if (!mHasFeature) { 4064 return; 4065 } 4066 Preconditions.checkNotNull(who, "ComponentName is null"); 4067 final int userHandle = mInjector.userHandleGetCallingUserId(); 4068 synchronized (this) { 4069 ActiveAdmin ap = getActiveAdminForCallerLocked( 4070 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4071 if (ap.maximumTimeToUnlock != timeMs) { 4072 ap.maximumTimeToUnlock = timeMs; 4073 saveSettingsLocked(userHandle); 4074 updateMaximumTimeToLockLocked(userHandle); 4075 } 4076 } 4077 } 4078 4079 void updateMaximumTimeToLockLocked(int userHandle) { 4080 // Calculate the min timeout for all profiles - including the ones with a separate 4081 // challenge. Ideally if the timeout only affected the profile challenge we'd lock that 4082 // challenge only and keep the screen on. However there is no easy way of doing that at the 4083 // moment so we set the screen off timeout regardless of whether it affects the parent user 4084 // or the profile challenge only. 4085 long timeMs = Long.MAX_VALUE; 4086 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 4087 for (int profileId : profileIds) { 4088 DevicePolicyData policy = getUserDataUnchecked(profileId); 4089 final int N = policy.mAdminList.size(); 4090 for (int i = 0; i < N; i++) { 4091 ActiveAdmin admin = policy.mAdminList.get(i); 4092 if (admin.maximumTimeToUnlock > 0 4093 && timeMs > admin.maximumTimeToUnlock) { 4094 timeMs = admin.maximumTimeToUnlock; 4095 } 4096 // If userInfo.id is a managed profile, we also need to look at 4097 // the policies set on the parent. 4098 if (admin.hasParentActiveAdmin()) { 4099 final ActiveAdmin parentAdmin = admin.getParentActiveAdmin(); 4100 if (parentAdmin.maximumTimeToUnlock > 0 4101 && timeMs > parentAdmin.maximumTimeToUnlock) { 4102 timeMs = parentAdmin.maximumTimeToUnlock; 4103 } 4104 } 4105 } 4106 } 4107 4108 // We only store the last maximum time to lock on the parent profile. So if calling from a 4109 // managed profile, retrieve the policy for the parent. 4110 DevicePolicyData policy = getUserDataUnchecked(getProfileParentId(userHandle)); 4111 if (policy.mLastMaximumTimeToLock == timeMs) { 4112 return; 4113 } 4114 policy.mLastMaximumTimeToLock = timeMs; 4115 4116 final long ident = mInjector.binderClearCallingIdentity(); 4117 try { 4118 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 4119 // Make sure KEEP_SCREEN_ON is disabled, since that 4120 // would allow bypassing of the maximum time to lock. 4121 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 4122 } 4123 4124 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4125 (int) Math.min(policy.mLastMaximumTimeToLock, Integer.MAX_VALUE)); 4126 } finally { 4127 mInjector.binderRestoreCallingIdentity(ident); 4128 } 4129 } 4130 4131 @Override 4132 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 4133 if (!mHasFeature) { 4134 return 0; 4135 } 4136 enforceFullCrossUsersPermission(userHandle); 4137 synchronized (this) { 4138 if (who != null) { 4139 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4140 return admin != null ? admin.maximumTimeToUnlock : 0; 4141 } 4142 // Return the strictest policy across all participating admins. 4143 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4144 userHandle, parent); 4145 return getMaximumTimeToLockPolicyFromAdmins(admins); 4146 } 4147 } 4148 4149 @Override 4150 public long getMaximumTimeToLockForUserAndProfiles(int userHandle) { 4151 if (!mHasFeature) { 4152 return 0; 4153 } 4154 enforceFullCrossUsersPermission(userHandle); 4155 synchronized (this) { 4156 // All admins for this user. 4157 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 4158 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4159 DevicePolicyData policy = getUserData(userInfo.id); 4160 admins.addAll(policy.mAdminList); 4161 // If it is a managed profile, it may have parent active admins 4162 if (userInfo.isManagedProfile()) { 4163 for (ActiveAdmin admin : policy.mAdminList) { 4164 if (admin.hasParentActiveAdmin()) { 4165 admins.add(admin.getParentActiveAdmin()); 4166 } 4167 } 4168 } 4169 } 4170 return getMaximumTimeToLockPolicyFromAdmins(admins); 4171 } 4172 } 4173 4174 private long getMaximumTimeToLockPolicyFromAdmins(List<ActiveAdmin> admins) { 4175 long time = 0; 4176 final int N = admins.size(); 4177 for (int i = 0; i < N; i++) { 4178 ActiveAdmin admin = admins.get(i); 4179 if (time == 0) { 4180 time = admin.maximumTimeToUnlock; 4181 } else if (admin.maximumTimeToUnlock != 0 4182 && time > admin.maximumTimeToUnlock) { 4183 time = admin.maximumTimeToUnlock; 4184 } 4185 } 4186 return time; 4187 } 4188 4189 @Override 4190 public void lockNow(boolean parent) { 4191 if (!mHasFeature) { 4192 return; 4193 } 4194 synchronized (this) { 4195 // This API can only be called by an active device admin, 4196 // so try to retrieve it to check that the caller is one. 4197 getActiveAdminForCallerLocked( 4198 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4199 4200 int userToLock = mInjector.userHandleGetCallingUserId(); 4201 4202 // Unless this is a managed profile with work challenge enabled, lock all users. 4203 if (parent || !isSeparateProfileChallengeEnabled(userToLock)) { 4204 userToLock = UserHandle.USER_ALL; 4205 } 4206 final long ident = mInjector.binderClearCallingIdentity(); 4207 try { 4208 mLockPatternUtils.requireStrongAuth( 4209 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 4210 if (userToLock == UserHandle.USER_ALL) { 4211 // Power off the display 4212 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 4213 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 4214 mInjector.getIWindowManager().lockNow(null); 4215 } 4216 } catch (RemoteException e) { 4217 } finally { 4218 mInjector.binderRestoreCallingIdentity(ident); 4219 } 4220 } 4221 } 4222 4223 @Override 4224 public void enforceCanManageCaCerts(ComponentName who) { 4225 if (who == null) { 4226 if (!isCallerDelegatedCertInstaller()) { 4227 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 4228 } 4229 } else { 4230 synchronized (this) { 4231 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4232 } 4233 } 4234 } 4235 4236 private void enforceCanManageInstalledKeys(ComponentName who) { 4237 if (who == null) { 4238 if (!isCallerDelegatedCertInstaller()) { 4239 throw new SecurityException("who == null, but caller is not cert installer"); 4240 } 4241 } else { 4242 synchronized (this) { 4243 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4244 } 4245 } 4246 } 4247 4248 private boolean isCallerDelegatedCertInstaller() { 4249 final int callingUid = mInjector.binderGetCallingUid(); 4250 final int userHandle = UserHandle.getUserId(callingUid); 4251 synchronized (this) { 4252 final DevicePolicyData policy = getUserData(userHandle); 4253 if (policy.mDelegatedCertInstallerPackage == null) { 4254 return false; 4255 } 4256 4257 try { 4258 int uid = mContext.getPackageManager().getPackageUidAsUser( 4259 policy.mDelegatedCertInstallerPackage, userHandle); 4260 return uid == callingUid; 4261 } catch (NameNotFoundException e) { 4262 return false; 4263 } 4264 } 4265 } 4266 4267 @Override 4268 public boolean approveCaCert(String alias, int userId, boolean approval) { 4269 enforceManageUsers(); 4270 synchronized (this) { 4271 Set<String> certs = getUserData(userId).mAcceptedCaCertificates; 4272 boolean changed = (approval ? certs.add(alias) : certs.remove(alias)); 4273 if (!changed) { 4274 return false; 4275 } 4276 saveSettingsLocked(userId); 4277 } 4278 new MonitoringCertNotificationTask().execute(userId); 4279 return true; 4280 } 4281 4282 @Override 4283 public boolean isCaCertApproved(String alias, int userId) { 4284 enforceManageUsers(); 4285 synchronized (this) { 4286 return getUserData(userId).mAcceptedCaCertificates.contains(alias); 4287 } 4288 } 4289 4290 private void removeCaApprovalsIfNeeded(int userId) { 4291 for (UserInfo userInfo : mUserManager.getProfiles(userId)) { 4292 boolean isSecure = mLockPatternUtils.isSecure(userInfo.id); 4293 if (userInfo.isManagedProfile()){ 4294 isSecure |= mLockPatternUtils.isSecure(getProfileParentId(userInfo.id)); 4295 } 4296 if (!isSecure) { 4297 synchronized (this) { 4298 getUserData(userInfo.id).mAcceptedCaCertificates.clear(); 4299 saveSettingsLocked(userInfo.id); 4300 } 4301 4302 new MonitoringCertNotificationTask().execute(userInfo.id); 4303 } 4304 } 4305 } 4306 4307 @Override 4308 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 4309 enforceCanManageCaCerts(admin); 4310 4311 byte[] pemCert; 4312 try { 4313 X509Certificate cert = parseCert(certBuffer); 4314 pemCert = Credentials.convertToPem(cert); 4315 } catch (CertificateException ce) { 4316 Log.e(LOG_TAG, "Problem converting cert", ce); 4317 return false; 4318 } catch (IOException ioe) { 4319 Log.e(LOG_TAG, "Problem reading cert", ioe); 4320 return false; 4321 } 4322 4323 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4324 final long id = mInjector.binderClearCallingIdentity(); 4325 try { 4326 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4327 try { 4328 keyChainConnection.getService().installCaCertificate(pemCert); 4329 return true; 4330 } catch (RemoteException e) { 4331 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 4332 } finally { 4333 keyChainConnection.close(); 4334 } 4335 } catch (InterruptedException e1) { 4336 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 4337 Thread.currentThread().interrupt(); 4338 } finally { 4339 mInjector.binderRestoreCallingIdentity(id); 4340 } 4341 return false; 4342 } 4343 4344 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 4345 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 4346 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 4347 certBuffer)); 4348 } 4349 4350 @Override 4351 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 4352 enforceCanManageCaCerts(admin); 4353 4354 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4355 final long id = mInjector.binderClearCallingIdentity(); 4356 try { 4357 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4358 try { 4359 for (int i = 0 ; i < aliases.length; i++) { 4360 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 4361 } 4362 } catch (RemoteException e) { 4363 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 4364 } finally { 4365 keyChainConnection.close(); 4366 } 4367 } catch (InterruptedException ie) { 4368 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 4369 Thread.currentThread().interrupt(); 4370 } finally { 4371 mInjector.binderRestoreCallingIdentity(id); 4372 } 4373 } 4374 4375 @Override 4376 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, byte[] chain, 4377 String alias, boolean requestAccess) { 4378 enforceCanManageInstalledKeys(who); 4379 4380 final int callingUid = mInjector.binderGetCallingUid(); 4381 final long id = mInjector.binderClearCallingIdentity(); 4382 try { 4383 final KeyChainConnection keyChainConnection = 4384 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 4385 try { 4386 IKeyChainService keyChain = keyChainConnection.getService(); 4387 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) { 4388 return false; 4389 } 4390 if (requestAccess) { 4391 keyChain.setGrant(callingUid, alias, true); 4392 } 4393 return true; 4394 } catch (RemoteException e) { 4395 Log.e(LOG_TAG, "Installing certificate", e); 4396 } finally { 4397 keyChainConnection.close(); 4398 } 4399 } catch (InterruptedException e) { 4400 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 4401 Thread.currentThread().interrupt(); 4402 } finally { 4403 mInjector.binderRestoreCallingIdentity(id); 4404 } 4405 return false; 4406 } 4407 4408 @Override 4409 public boolean removeKeyPair(ComponentName who, String alias) { 4410 enforceCanManageInstalledKeys(who); 4411 4412 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4413 final long id = Binder.clearCallingIdentity(); 4414 try { 4415 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4416 try { 4417 IKeyChainService keyChain = keyChainConnection.getService(); 4418 return keyChain.removeKeyPair(alias); 4419 } catch (RemoteException e) { 4420 Log.e(LOG_TAG, "Removing keypair", e); 4421 } finally { 4422 keyChainConnection.close(); 4423 } 4424 } catch (InterruptedException e) { 4425 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 4426 Thread.currentThread().interrupt(); 4427 } finally { 4428 Binder.restoreCallingIdentity(id); 4429 } 4430 return false; 4431 } 4432 4433 @Override 4434 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 4435 final IBinder response) { 4436 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 4437 if (!isCallerWithSystemUid()) { 4438 return; 4439 } 4440 4441 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 4442 // If there is a profile owner, redirect to that; otherwise query the device owner. 4443 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 4444 if (aliasChooser == null && caller.isSystem()) { 4445 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 4446 if (deviceOwnerAdmin != null) { 4447 aliasChooser = deviceOwnerAdmin.info.getComponent(); 4448 } 4449 } 4450 if (aliasChooser == null) { 4451 sendPrivateKeyAliasResponse(null, response); 4452 return; 4453 } 4454 4455 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 4456 intent.setComponent(aliasChooser); 4457 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 4458 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 4459 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 4460 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 4461 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4462 4463 final long id = mInjector.binderClearCallingIdentity(); 4464 try { 4465 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 4466 @Override 4467 public void onReceive(Context context, Intent intent) { 4468 final String chosenAlias = getResultData(); 4469 sendPrivateKeyAliasResponse(chosenAlias, response); 4470 } 4471 }, null, Activity.RESULT_OK, null, null); 4472 } finally { 4473 mInjector.binderRestoreCallingIdentity(id); 4474 } 4475 } 4476 4477 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 4478 final IKeyChainAliasCallback keyChainAliasResponse = 4479 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 4480 new AsyncTask<Void, Void, Void>() { 4481 @Override 4482 protected Void doInBackground(Void... unused) { 4483 try { 4484 keyChainAliasResponse.alias(alias); 4485 } catch (Exception e) { 4486 // Catch everything (not just RemoteException): caller could throw a 4487 // RuntimeException back across processes. 4488 Log.e(LOG_TAG, "error while responding to callback", e); 4489 } 4490 return null; 4491 } 4492 }.execute(); 4493 } 4494 4495 @Override 4496 public void setCertInstallerPackage(ComponentName who, String installerPackage) 4497 throws SecurityException { 4498 int userHandle = UserHandle.getCallingUserId(); 4499 synchronized (this) { 4500 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4501 if (getTargetSdk(who.getPackageName(), userHandle) >= Build.VERSION_CODES.N) { 4502 if (installerPackage != null && 4503 !isPackageInstalledForUser(installerPackage, userHandle)) { 4504 throw new IllegalArgumentException("Package " + installerPackage 4505 + " is not installed on the current user"); 4506 } 4507 } 4508 DevicePolicyData policy = getUserData(userHandle); 4509 policy.mDelegatedCertInstallerPackage = installerPackage; 4510 saveSettingsLocked(userHandle); 4511 } 4512 } 4513 4514 @Override 4515 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 4516 int userHandle = UserHandle.getCallingUserId(); 4517 synchronized (this) { 4518 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4519 DevicePolicyData policy = getUserData(userHandle); 4520 return policy.mDelegatedCertInstallerPackage; 4521 } 4522 } 4523 4524 /** 4525 * @return {@code true} if the package is installed and set as always-on, {@code false} if it is 4526 * not installed and therefore not available. 4527 * 4528 * @throws SecurityException if the caller is not a profile or device owner. 4529 * @throws UnsupportedOperationException if the package does not support being set as always-on. 4530 */ 4531 @Override 4532 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage, boolean lockdown) 4533 throws SecurityException { 4534 synchronized (this) { 4535 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4536 } 4537 4538 final int userId = mInjector.userHandleGetCallingUserId(); 4539 final long token = mInjector.binderClearCallingIdentity(); 4540 try { 4541 if (vpnPackage != null && !isPackageInstalledForUser(vpnPackage, userId)) { 4542 return false; 4543 } 4544 ConnectivityManager connectivityManager = (ConnectivityManager) 4545 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4546 if (!connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage, lockdown)) { 4547 throw new UnsupportedOperationException(); 4548 } 4549 } finally { 4550 mInjector.binderRestoreCallingIdentity(token); 4551 } 4552 return true; 4553 } 4554 4555 @Override 4556 public String getAlwaysOnVpnPackage(ComponentName admin) 4557 throws SecurityException { 4558 synchronized (this) { 4559 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4560 } 4561 4562 final int userId = mInjector.userHandleGetCallingUserId(); 4563 final long token = mInjector.binderClearCallingIdentity(); 4564 try{ 4565 ConnectivityManager connectivityManager = (ConnectivityManager) 4566 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4567 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 4568 } finally { 4569 mInjector.binderRestoreCallingIdentity(token); 4570 } 4571 } 4572 4573 private void wipeDataLocked(boolean wipeExtRequested, String reason, boolean force) { 4574 if (wipeExtRequested) { 4575 StorageManager sm = (StorageManager) mContext.getSystemService( 4576 Context.STORAGE_SERVICE); 4577 sm.wipeAdoptableDisks(); 4578 } 4579 try { 4580 RecoverySystem.rebootWipeUserData(mContext, false /* shutdown */, reason, force); 4581 } catch (IOException | SecurityException e) { 4582 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 4583 } 4584 } 4585 4586 @Override 4587 public void wipeData(int flags) { 4588 if (!mHasFeature) { 4589 return; 4590 } 4591 final int userHandle = mInjector.userHandleGetCallingUserId(); 4592 enforceFullCrossUsersPermission(userHandle); 4593 synchronized (this) { 4594 // This API can only be called by an active device admin, 4595 // so try to retrieve it to check that the caller is one. 4596 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 4597 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 4598 4599 final String source = admin.info.getComponent().flattenToShortString(); 4600 4601 long ident = mInjector.binderClearCallingIdentity(); 4602 try { 4603 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 4604 if (!isDeviceOwner(admin.info.getComponent(), userHandle)) { 4605 throw new SecurityException( 4606 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 4607 } 4608 PersistentDataBlockManager manager = (PersistentDataBlockManager) 4609 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 4610 if (manager != null) { 4611 manager.wipe(); 4612 } 4613 } 4614 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 4615 // If the admin is the only one who has set the restriction: force wipe, even if 4616 // {@link UserManager.DISALLOW_FACTORY_RESET} is set. Reason is that the admin 4617 // could remove this user restriction anyway. 4618 boolean force = (userHandle == UserHandle.USER_SYSTEM) 4619 && isAdminOnlyOneWhoSetRestriction(admin, 4620 UserManager.DISALLOW_FACTORY_RESET, UserHandle.USER_SYSTEM); 4621 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 4622 "DevicePolicyManager.wipeData() from " + source, force); 4623 } finally { 4624 mInjector.binderRestoreCallingIdentity(ident); 4625 } 4626 } 4627 } 4628 4629 private boolean isAdminOnlyOneWhoSetRestriction(ActiveAdmin admin, String userRestriction, 4630 int userId) { 4631 int source = mUserManager.getUserRestrictionSource(userRestriction, UserHandle.of(userId)); 4632 if (isDeviceOwner(admin.info.getComponent(), userId)) { 4633 return source == UserManager.RESTRICTION_SOURCE_DEVICE_OWNER; 4634 } else if (isProfileOwner(admin.info.getComponent(), userId)) { 4635 return source == UserManager.RESTRICTION_SOURCE_PROFILE_OWNER; 4636 } 4637 return false; 4638 } 4639 4640 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, 4641 String reason, boolean force) { 4642 if (userHandle == UserHandle.USER_SYSTEM) { 4643 wipeDataLocked(wipeExtRequested, reason, force); 4644 } else { 4645 mHandler.post(new Runnable() { 4646 @Override 4647 public void run() { 4648 try { 4649 IActivityManager am = mInjector.getIActivityManager(); 4650 if (am.getCurrentUser().id == userHandle) { 4651 am.switchUser(UserHandle.USER_SYSTEM); 4652 } 4653 4654 boolean isManagedProfile = isManagedProfile(userHandle); 4655 if (!mUserManager.removeUser(userHandle)) { 4656 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 4657 } else if (isManagedProfile) { 4658 sendWipeProfileNotification(); 4659 } 4660 } catch (RemoteException re) { 4661 // Shouldn't happen 4662 } 4663 } 4664 }); 4665 } 4666 } 4667 4668 private void sendWipeProfileNotification() { 4669 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 4670 Notification notification = new Notification.Builder(mContext) 4671 .setSmallIcon(android.R.drawable.stat_sys_warning) 4672 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 4673 .setContentText(contentText) 4674 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 4675 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 4676 .build(); 4677 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 4678 } 4679 4680 private void clearWipeProfileNotification() { 4681 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 4682 } 4683 4684 @Override 4685 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 4686 if (!mHasFeature) { 4687 return; 4688 } 4689 enforceFullCrossUsersPermission(userHandle); 4690 mContext.enforceCallingOrSelfPermission( 4691 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4692 4693 synchronized (this) { 4694 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 4695 if (admin == null) { 4696 result.sendResult(null); 4697 return; 4698 } 4699 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 4700 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4701 intent.setComponent(admin.info.getComponent()); 4702 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 4703 null, new BroadcastReceiver() { 4704 @Override 4705 public void onReceive(Context context, Intent intent) { 4706 result.sendResult(getResultExtras(false)); 4707 } 4708 }, null, Activity.RESULT_OK, null, null); 4709 } 4710 } 4711 4712 @Override 4713 public void setActivePasswordState(int quality, int length, int letters, int uppercase, 4714 int lowercase, int numbers, int symbols, int nonletter, int userHandle) { 4715 if (!mHasFeature) { 4716 return; 4717 } 4718 enforceFullCrossUsersPermission(userHandle); 4719 4720 // Managed Profile password can only be changed when it has a separate challenge. 4721 if (!isSeparateProfileChallengeEnabled(userHandle)) { 4722 enforceNotManagedProfile(userHandle, "set the active password"); 4723 } 4724 4725 mContext.enforceCallingOrSelfPermission( 4726 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4727 validateQualityConstant(quality); 4728 4729 DevicePolicyData policy = getUserData(userHandle); 4730 4731 long ident = mInjector.binderClearCallingIdentity(); 4732 try { 4733 synchronized (this) { 4734 policy.mActivePasswordQuality = quality; 4735 policy.mActivePasswordLength = length; 4736 policy.mActivePasswordLetters = letters; 4737 policy.mActivePasswordLowerCase = lowercase; 4738 policy.mActivePasswordUpperCase = uppercase; 4739 policy.mActivePasswordNumeric = numbers; 4740 policy.mActivePasswordSymbols = symbols; 4741 policy.mActivePasswordNonLetter = nonletter; 4742 policy.mFailedPasswordAttempts = 0; 4743 saveSettingsLocked(userHandle); 4744 updatePasswordExpirationsLocked(userHandle); 4745 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 4746 4747 // Send a broadcast to each profile using this password as its primary unlock. 4748 sendAdminCommandForLockscreenPoliciesLocked( 4749 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 4750 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 4751 } 4752 removeCaApprovalsIfNeeded(userHandle); 4753 } finally { 4754 mInjector.binderRestoreCallingIdentity(ident); 4755 } 4756 } 4757 4758 /** 4759 * Called any time the device password is updated. Resets all password expiration clocks. 4760 */ 4761 private void updatePasswordExpirationsLocked(int userHandle) { 4762 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 4763 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4764 userHandle, /* parent */ false); 4765 final int N = admins.size(); 4766 for (int i = 0; i < N; i++) { 4767 ActiveAdmin admin = admins.get(i); 4768 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 4769 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 4770 long timeout = admin.passwordExpirationTimeout; 4771 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 4772 admin.passwordExpirationDate = expiration; 4773 } 4774 } 4775 for (int affectedUserId : affectedUserIds) { 4776 saveSettingsLocked(affectedUserId); 4777 } 4778 } 4779 4780 @Override 4781 public void reportFailedPasswordAttempt(int userHandle) { 4782 enforceFullCrossUsersPermission(userHandle); 4783 if (!isSeparateProfileChallengeEnabled(userHandle)) { 4784 enforceNotManagedProfile(userHandle, 4785 "report failed password attempt if separate profile challenge is not in place"); 4786 } 4787 mContext.enforceCallingOrSelfPermission( 4788 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4789 4790 final long ident = mInjector.binderClearCallingIdentity(); 4791 try { 4792 boolean wipeData = false; 4793 int identifier = 0; 4794 synchronized (this) { 4795 DevicePolicyData policy = getUserData(userHandle); 4796 policy.mFailedPasswordAttempts++; 4797 saveSettingsLocked(userHandle); 4798 if (mHasFeature) { 4799 ActiveAdmin strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4800 userHandle, /* parent */ false); 4801 int max = strictestAdmin != null 4802 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 4803 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 4804 // Wipe the user/profile associated with the policy that was violated. This 4805 // is not necessarily calling user: if the policy that fired was from a 4806 // managed profile rather than the main user profile, we wipe former only. 4807 wipeData = true; 4808 identifier = strictestAdmin.getUserHandle().getIdentifier(); 4809 } 4810 4811 sendAdminCommandForLockscreenPoliciesLocked( 4812 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 4813 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4814 } 4815 } 4816 if (wipeData) { 4817 // Call without holding lock. 4818 wipeDeviceOrUserLocked(false, identifier, 4819 "reportFailedPasswordAttempt()", false); 4820 } 4821 } finally { 4822 mInjector.binderRestoreCallingIdentity(ident); 4823 } 4824 4825 if (mInjector.securityLogIsLoggingEnabled()) { 4826 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 4827 /*method strength*/ 1); 4828 } 4829 } 4830 4831 @Override 4832 public void reportSuccessfulPasswordAttempt(int userHandle) { 4833 enforceFullCrossUsersPermission(userHandle); 4834 mContext.enforceCallingOrSelfPermission( 4835 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4836 4837 synchronized (this) { 4838 DevicePolicyData policy = getUserData(userHandle); 4839 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 4840 long ident = mInjector.binderClearCallingIdentity(); 4841 try { 4842 policy.mFailedPasswordAttempts = 0; 4843 policy.mPasswordOwner = -1; 4844 saveSettingsLocked(userHandle); 4845 if (mHasFeature) { 4846 sendAdminCommandForLockscreenPoliciesLocked( 4847 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 4848 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4849 } 4850 } finally { 4851 mInjector.binderRestoreCallingIdentity(ident); 4852 } 4853 } 4854 } 4855 4856 if (mInjector.securityLogIsLoggingEnabled()) { 4857 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 4858 /*method strength*/ 1); 4859 } 4860 } 4861 4862 @Override 4863 public void reportFailedFingerprintAttempt(int userHandle) { 4864 enforceFullCrossUsersPermission(userHandle); 4865 mContext.enforceCallingOrSelfPermission( 4866 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4867 if (mInjector.securityLogIsLoggingEnabled()) { 4868 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 4869 /*method strength*/ 0); 4870 } 4871 } 4872 4873 @Override 4874 public void reportSuccessfulFingerprintAttempt(int userHandle) { 4875 enforceFullCrossUsersPermission(userHandle); 4876 mContext.enforceCallingOrSelfPermission( 4877 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4878 if (mInjector.securityLogIsLoggingEnabled()) { 4879 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 4880 /*method strength*/ 0); 4881 } 4882 } 4883 4884 @Override 4885 public void reportKeyguardDismissed(int userHandle) { 4886 enforceFullCrossUsersPermission(userHandle); 4887 mContext.enforceCallingOrSelfPermission( 4888 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4889 4890 if (mInjector.securityLogIsLoggingEnabled()) { 4891 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 4892 } 4893 } 4894 4895 @Override 4896 public void reportKeyguardSecured(int userHandle) { 4897 enforceFullCrossUsersPermission(userHandle); 4898 mContext.enforceCallingOrSelfPermission( 4899 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4900 4901 if (mInjector.securityLogIsLoggingEnabled()) { 4902 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 4903 } 4904 } 4905 4906 @Override 4907 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 4908 String exclusionList) { 4909 if (!mHasFeature) { 4910 return null; 4911 } 4912 synchronized(this) { 4913 Preconditions.checkNotNull(who, "ComponentName is null"); 4914 4915 // Only check if system user has set global proxy. We don't allow other users to set it. 4916 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4917 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 4918 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 4919 4920 // Scan through active admins and find if anyone has already 4921 // set the global proxy. 4922 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 4923 for (ComponentName component : compSet) { 4924 ActiveAdmin ap = policy.mAdminMap.get(component); 4925 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 4926 // Another admin already sets the global proxy 4927 // Return it to the caller. 4928 return component; 4929 } 4930 } 4931 4932 // If the user is not system, don't set the global proxy. Fail silently. 4933 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 4934 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 4935 + UserHandle.getCallingUserId() + " is not permitted."); 4936 return null; 4937 } 4938 if (proxySpec == null) { 4939 admin.specifiesGlobalProxy = false; 4940 admin.globalProxySpec = null; 4941 admin.globalProxyExclusionList = null; 4942 } else { 4943 4944 admin.specifiesGlobalProxy = true; 4945 admin.globalProxySpec = proxySpec; 4946 admin.globalProxyExclusionList = exclusionList; 4947 } 4948 4949 // Reset the global proxy accordingly 4950 // Do this using system permissions, as apps cannot write to secure settings 4951 long origId = mInjector.binderClearCallingIdentity(); 4952 try { 4953 resetGlobalProxyLocked(policy); 4954 } finally { 4955 mInjector.binderRestoreCallingIdentity(origId); 4956 } 4957 return null; 4958 } 4959 } 4960 4961 @Override 4962 public ComponentName getGlobalProxyAdmin(int userHandle) { 4963 if (!mHasFeature) { 4964 return null; 4965 } 4966 enforceFullCrossUsersPermission(userHandle); 4967 synchronized(this) { 4968 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 4969 // Scan through active admins and find if anyone has already 4970 // set the global proxy. 4971 final int N = policy.mAdminList.size(); 4972 for (int i = 0; i < N; i++) { 4973 ActiveAdmin ap = policy.mAdminList.get(i); 4974 if (ap.specifiesGlobalProxy) { 4975 // Device admin sets the global proxy 4976 // Return it to the caller. 4977 return ap.info.getComponent(); 4978 } 4979 } 4980 } 4981 // No device admin sets the global proxy. 4982 return null; 4983 } 4984 4985 @Override 4986 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 4987 synchronized (this) { 4988 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 4989 } 4990 long token = mInjector.binderClearCallingIdentity(); 4991 try { 4992 ConnectivityManager connectivityManager = (ConnectivityManager) 4993 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4994 connectivityManager.setGlobalProxy(proxyInfo); 4995 } finally { 4996 mInjector.binderRestoreCallingIdentity(token); 4997 } 4998 } 4999 5000 private void resetGlobalProxyLocked(DevicePolicyData policy) { 5001 final int N = policy.mAdminList.size(); 5002 for (int i = 0; i < N; i++) { 5003 ActiveAdmin ap = policy.mAdminList.get(i); 5004 if (ap.specifiesGlobalProxy) { 5005 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 5006 return; 5007 } 5008 } 5009 // No device admins defining global proxies - reset global proxy settings to none 5010 saveGlobalProxyLocked(null, null); 5011 } 5012 5013 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 5014 if (exclusionList == null) { 5015 exclusionList = ""; 5016 } 5017 if (proxySpec == null) { 5018 proxySpec = ""; 5019 } 5020 // Remove white spaces 5021 proxySpec = proxySpec.trim(); 5022 String data[] = proxySpec.split(":"); 5023 int proxyPort = 8080; 5024 if (data.length > 1) { 5025 try { 5026 proxyPort = Integer.parseInt(data[1]); 5027 } catch (NumberFormatException e) {} 5028 } 5029 exclusionList = exclusionList.trim(); 5030 5031 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 5032 if (!proxyProperties.isValid()) { 5033 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 5034 return; 5035 } 5036 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 5037 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 5038 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 5039 exclusionList); 5040 } 5041 5042 /** 5043 * Set the storage encryption request for a single admin. Returns the new total request 5044 * status (for all admins). 5045 */ 5046 @Override 5047 public int setStorageEncryption(ComponentName who, boolean encrypt) { 5048 if (!mHasFeature) { 5049 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5050 } 5051 Preconditions.checkNotNull(who, "ComponentName is null"); 5052 final int userHandle = UserHandle.getCallingUserId(); 5053 synchronized (this) { 5054 // Check for permissions 5055 // Only system user can set storage encryption 5056 if (userHandle != UserHandle.USER_SYSTEM) { 5057 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 5058 + UserHandle.getCallingUserId() + " is not permitted."); 5059 return 0; 5060 } 5061 5062 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5063 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 5064 5065 // Quick exit: If the filesystem does not support encryption, we can exit early. 5066 if (!isEncryptionSupported()) { 5067 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5068 } 5069 5070 // (1) Record the value for the admin so it's sticky 5071 if (ap.encryptionRequested != encrypt) { 5072 ap.encryptionRequested = encrypt; 5073 saveSettingsLocked(userHandle); 5074 } 5075 5076 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5077 // (2) Compute "max" for all admins 5078 boolean newRequested = false; 5079 final int N = policy.mAdminList.size(); 5080 for (int i = 0; i < N; i++) { 5081 newRequested |= policy.mAdminList.get(i).encryptionRequested; 5082 } 5083 5084 // Notify OS of new request 5085 setEncryptionRequested(newRequested); 5086 5087 // Return the new global request status 5088 return newRequested 5089 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 5090 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5091 } 5092 } 5093 5094 /** 5095 * Get the current storage encryption request status for a given admin, or aggregate of all 5096 * active admins. 5097 */ 5098 @Override 5099 public boolean getStorageEncryption(ComponentName who, int userHandle) { 5100 if (!mHasFeature) { 5101 return false; 5102 } 5103 enforceFullCrossUsersPermission(userHandle); 5104 synchronized (this) { 5105 // Check for permissions if a particular caller is specified 5106 if (who != null) { 5107 // When checking for a single caller, status is based on caller's request 5108 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 5109 return ap != null ? ap.encryptionRequested : false; 5110 } 5111 5112 // If no particular caller is specified, return the aggregate set of requests. 5113 // This is short circuited by returning true on the first hit. 5114 DevicePolicyData policy = getUserData(userHandle); 5115 final int N = policy.mAdminList.size(); 5116 for (int i = 0; i < N; i++) { 5117 if (policy.mAdminList.get(i).encryptionRequested) { 5118 return true; 5119 } 5120 } 5121 return false; 5122 } 5123 } 5124 5125 /** 5126 * Get the current encryption status of the device. 5127 */ 5128 @Override 5129 public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) { 5130 if (!mHasFeature) { 5131 // Ok to return current status. 5132 } 5133 enforceFullCrossUsersPermission(userHandle); 5134 5135 // It's not critical here, but let's make sure the package name is correct, in case 5136 // we start using it for different purposes. 5137 ensureCallerPackage(callerPackage); 5138 5139 final ApplicationInfo ai; 5140 try { 5141 ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle); 5142 } catch (RemoteException e) { 5143 throw new SecurityException(e); 5144 } 5145 5146 boolean legacyApp = false; 5147 if (ai.targetSdkVersion <= Build.VERSION_CODES.M) { 5148 legacyApp = true; 5149 } 5150 5151 final int rawStatus = getEncryptionStatus(); 5152 if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) { 5153 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5154 } 5155 return rawStatus; 5156 } 5157 5158 /** 5159 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 5160 */ 5161 private boolean isEncryptionSupported() { 5162 // Note, this can be implemented as 5163 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5164 // But is provided as a separate internal method if there's a faster way to do a 5165 // simple check for supported-or-not. 5166 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5167 } 5168 5169 /** 5170 * Hook to low-levels: Reporting the current status of encryption. 5171 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 5172 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 5173 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, 5174 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or 5175 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 5176 */ 5177 private int getEncryptionStatus() { 5178 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 5179 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER; 5180 } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) { 5181 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5182 } else if (mInjector.storageManagerIsEncrypted()) { 5183 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 5184 } else if (mInjector.storageManagerIsEncryptable()) { 5185 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5186 } else { 5187 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5188 } 5189 } 5190 5191 /** 5192 * Hook to low-levels: If needed, record the new admin setting for encryption. 5193 */ 5194 private void setEncryptionRequested(boolean encrypt) { 5195 } 5196 5197 /** 5198 * Set whether the screen capture is disabled for the user managed by the specified admin. 5199 */ 5200 @Override 5201 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 5202 if (!mHasFeature) { 5203 return; 5204 } 5205 Preconditions.checkNotNull(who, "ComponentName is null"); 5206 final int userHandle = UserHandle.getCallingUserId(); 5207 synchronized (this) { 5208 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5209 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5210 if (ap.disableScreenCapture != disabled) { 5211 ap.disableScreenCapture = disabled; 5212 saveSettingsLocked(userHandle); 5213 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 5214 } 5215 } 5216 } 5217 5218 /** 5219 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 5220 * active admin (if given admin is null). 5221 */ 5222 @Override 5223 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 5224 if (!mHasFeature) { 5225 return false; 5226 } 5227 synchronized (this) { 5228 if (who != null) { 5229 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5230 return (admin != null) ? admin.disableScreenCapture : false; 5231 } 5232 5233 DevicePolicyData policy = getUserData(userHandle); 5234 final int N = policy.mAdminList.size(); 5235 for (int i = 0; i < N; i++) { 5236 ActiveAdmin admin = policy.mAdminList.get(i); 5237 if (admin.disableScreenCapture) { 5238 return true; 5239 } 5240 } 5241 return false; 5242 } 5243 } 5244 5245 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 5246 final boolean disabled) { 5247 mHandler.post(new Runnable() { 5248 @Override 5249 public void run() { 5250 try { 5251 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 5252 } catch (RemoteException e) { 5253 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 5254 } 5255 } 5256 }); 5257 } 5258 5259 /** 5260 * Set whether auto time is required by the specified admin (must be device owner). 5261 */ 5262 @Override 5263 public void setAutoTimeRequired(ComponentName who, boolean required) { 5264 if (!mHasFeature) { 5265 return; 5266 } 5267 Preconditions.checkNotNull(who, "ComponentName is null"); 5268 final int userHandle = UserHandle.getCallingUserId(); 5269 synchronized (this) { 5270 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5271 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5272 if (admin.requireAutoTime != required) { 5273 admin.requireAutoTime = required; 5274 saveSettingsLocked(userHandle); 5275 } 5276 } 5277 5278 // Turn AUTO_TIME on in settings if it is required 5279 if (required) { 5280 long ident = mInjector.binderClearCallingIdentity(); 5281 try { 5282 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 5283 } finally { 5284 mInjector.binderRestoreCallingIdentity(ident); 5285 } 5286 } 5287 } 5288 5289 /** 5290 * Returns whether or not auto time is required by the device owner. 5291 */ 5292 @Override 5293 public boolean getAutoTimeRequired() { 5294 if (!mHasFeature) { 5295 return false; 5296 } 5297 synchronized (this) { 5298 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5299 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 5300 } 5301 } 5302 5303 @Override 5304 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 5305 if (!mHasFeature) { 5306 return; 5307 } 5308 Preconditions.checkNotNull(who, "ComponentName is null"); 5309 // Allow setting this policy to true only if there is a split system user. 5310 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 5311 throw new UnsupportedOperationException( 5312 "Cannot force ephemeral users on systems without split system user."); 5313 } 5314 boolean removeAllUsers = false; 5315 synchronized (this) { 5316 final ActiveAdmin deviceOwner = 5317 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5318 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 5319 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 5320 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 5321 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 5322 removeAllUsers = forceEphemeralUsers; 5323 } 5324 } 5325 if (removeAllUsers) { 5326 long identitity = mInjector.binderClearCallingIdentity(); 5327 try { 5328 mUserManagerInternal.removeAllUsers(); 5329 } finally { 5330 mInjector.binderRestoreCallingIdentity(identitity); 5331 } 5332 } 5333 } 5334 5335 @Override 5336 public boolean getForceEphemeralUsers(ComponentName who) { 5337 if (!mHasFeature) { 5338 return false; 5339 } 5340 Preconditions.checkNotNull(who, "ComponentName is null"); 5341 synchronized (this) { 5342 final ActiveAdmin deviceOwner = 5343 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5344 return deviceOwner.forceEphemeralUsers; 5345 } 5346 } 5347 5348 private boolean isDeviceOwnerManagedSingleUserDevice() { 5349 synchronized (this) { 5350 if (!mOwners.hasDeviceOwner()) { 5351 return false; 5352 } 5353 } 5354 final long callingIdentity = mInjector.binderClearCallingIdentity(); 5355 try { 5356 if (mInjector.userManagerIsSplitSystemUser()) { 5357 // In split system user mode, only allow the case where the device owner is managing 5358 // the only non-system user of the device 5359 return (mUserManager.getUserCount() == 2 5360 && mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM); 5361 } else { 5362 return mUserManager.getUserCount() == 1; 5363 } 5364 } finally { 5365 mInjector.binderRestoreCallingIdentity(callingIdentity); 5366 } 5367 } 5368 5369 private void ensureDeviceOwnerManagingSingleUser(ComponentName who) throws SecurityException { 5370 synchronized (this) { 5371 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5372 } 5373 if (!isDeviceOwnerManagedSingleUserDevice()) { 5374 throw new SecurityException( 5375 "There should only be one user, managed by Device Owner"); 5376 } 5377 } 5378 5379 @Override 5380 public boolean requestBugreport(ComponentName who) { 5381 if (!mHasFeature) { 5382 return false; 5383 } 5384 Preconditions.checkNotNull(who, "ComponentName is null"); 5385 ensureDeviceOwnerManagingSingleUser(who); 5386 5387 if (mRemoteBugreportServiceIsActive.get() 5388 || (getDeviceOwnerRemoteBugreportUri() != null)) { 5389 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 5390 return false; 5391 } 5392 5393 final long callingIdentity = mInjector.binderClearCallingIdentity(); 5394 try { 5395 ActivityManagerNative.getDefault().requestBugReport( 5396 ActivityManager.BUGREPORT_OPTION_REMOTE); 5397 5398 mRemoteBugreportServiceIsActive.set(true); 5399 mRemoteBugreportSharingAccepted.set(false); 5400 registerRemoteBugreportReceivers(); 5401 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5402 RemoteBugreportUtils.buildNotification(mContext, 5403 DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL); 5404 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 5405 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 5406 return true; 5407 } catch (RemoteException re) { 5408 // should never happen 5409 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 5410 return false; 5411 } finally { 5412 mInjector.binderRestoreCallingIdentity(callingIdentity); 5413 } 5414 } 5415 5416 synchronized void sendDeviceOwnerCommand(String action, Bundle extras) { 5417 Intent intent = new Intent(action); 5418 intent.setComponent(mOwners.getDeviceOwnerComponent()); 5419 if (extras != null) { 5420 intent.putExtras(extras); 5421 } 5422 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 5423 } 5424 5425 private synchronized String getDeviceOwnerRemoteBugreportUri() { 5426 return mOwners.getDeviceOwnerRemoteBugreportUri(); 5427 } 5428 5429 private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 5430 String bugreportHash) { 5431 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 5432 } 5433 5434 private void registerRemoteBugreportReceivers() { 5435 try { 5436 IntentFilter filterFinished = new IntentFilter( 5437 DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH, 5438 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 5439 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 5440 } catch (IntentFilter.MalformedMimeTypeException e) { 5441 // should never happen, as setting a constant 5442 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 5443 } 5444 IntentFilter filterConsent = new IntentFilter(); 5445 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 5446 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 5447 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 5448 } 5449 5450 private void onBugreportFinished(Intent intent) { 5451 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 5452 mRemoteBugreportServiceIsActive.set(false); 5453 Uri bugreportUri = intent.getData(); 5454 String bugreportUriString = null; 5455 if (bugreportUri != null) { 5456 bugreportUriString = bugreportUri.toString(); 5457 } 5458 String bugreportHash = intent.getStringExtra( 5459 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH); 5460 if (mRemoteBugreportSharingAccepted.get()) { 5461 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 5462 mInjector.getNotificationManager().cancel(LOG_TAG, 5463 RemoteBugreportUtils.NOTIFICATION_ID); 5464 } else { 5465 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 5466 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5467 RemoteBugreportUtils.buildNotification(mContext, 5468 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 5469 UserHandle.ALL); 5470 } 5471 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5472 } 5473 5474 private void onBugreportFailed() { 5475 mRemoteBugreportServiceIsActive.set(false); 5476 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 5477 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 5478 mRemoteBugreportSharingAccepted.set(false); 5479 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5480 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 5481 Bundle extras = new Bundle(); 5482 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 5483 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 5484 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 5485 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 5486 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5487 } 5488 5489 private void onBugreportSharingAccepted() { 5490 mRemoteBugreportSharingAccepted.set(true); 5491 String bugreportUriString = null; 5492 String bugreportHash = null; 5493 synchronized (this) { 5494 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 5495 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 5496 } 5497 if (bugreportUriString != null) { 5498 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 5499 } else if (mRemoteBugreportServiceIsActive.get()) { 5500 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5501 RemoteBugreportUtils.buildNotification(mContext, 5502 DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED), 5503 UserHandle.ALL); 5504 } 5505 } 5506 5507 private void onBugreportSharingDeclined() { 5508 if (mRemoteBugreportServiceIsActive.get()) { 5509 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 5510 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 5511 mRemoteBugreportServiceIsActive.set(false); 5512 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 5513 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5514 } 5515 mRemoteBugreportSharingAccepted.set(false); 5516 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5517 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 5518 } 5519 5520 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 5521 String bugreportHash) { 5522 ParcelFileDescriptor pfd = null; 5523 try { 5524 if (bugreportUriString == null) { 5525 throw new FileNotFoundException(); 5526 } 5527 Uri bugreportUri = Uri.parse(bugreportUriString); 5528 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 5529 5530 synchronized (this) { 5531 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 5532 intent.setComponent(mOwners.getDeviceOwnerComponent()); 5533 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 5534 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 5535 mContext.grantUriPermission(mOwners.getDeviceOwnerComponent().getPackageName(), 5536 bugreportUri, Intent.FLAG_GRANT_READ_URI_PERMISSION); 5537 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 5538 } 5539 } catch (FileNotFoundException e) { 5540 Bundle extras = new Bundle(); 5541 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 5542 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 5543 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 5544 } finally { 5545 try { 5546 if (pfd != null) { 5547 pfd.close(); 5548 } 5549 } catch (IOException ex) { 5550 // Ignore 5551 } 5552 mRemoteBugreportSharingAccepted.set(false); 5553 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5554 } 5555 } 5556 5557 /** 5558 * Disables all device cameras according to the specified admin. 5559 */ 5560 @Override 5561 public void setCameraDisabled(ComponentName who, boolean disabled) { 5562 if (!mHasFeature) { 5563 return; 5564 } 5565 Preconditions.checkNotNull(who, "ComponentName is null"); 5566 final int userHandle = mInjector.userHandleGetCallingUserId(); 5567 synchronized (this) { 5568 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5569 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 5570 if (ap.disableCamera != disabled) { 5571 ap.disableCamera = disabled; 5572 saveSettingsLocked(userHandle); 5573 } 5574 } 5575 // Tell the user manager that the restrictions have changed. 5576 pushUserRestrictions(userHandle); 5577 } 5578 5579 /** 5580 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 5581 * active admins. 5582 */ 5583 @Override 5584 public boolean getCameraDisabled(ComponentName who, int userHandle) { 5585 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 5586 } 5587 5588 private boolean getCameraDisabled(ComponentName who, int userHandle, 5589 boolean mergeDeviceOwnerRestriction) { 5590 if (!mHasFeature) { 5591 return false; 5592 } 5593 synchronized (this) { 5594 if (who != null) { 5595 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5596 return (admin != null) ? admin.disableCamera : false; 5597 } 5598 // First, see if DO has set it. If so, it's device-wide. 5599 if (mergeDeviceOwnerRestriction) { 5600 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5601 if (deviceOwner != null && deviceOwner.disableCamera) { 5602 return true; 5603 } 5604 } 5605 5606 // Then check each device admin on the user. 5607 DevicePolicyData policy = getUserData(userHandle); 5608 // Determine whether or not the device camera is disabled for any active admins. 5609 final int N = policy.mAdminList.size(); 5610 for (int i = 0; i < N; i++) { 5611 ActiveAdmin admin = policy.mAdminList.get(i); 5612 if (admin.disableCamera) { 5613 return true; 5614 } 5615 } 5616 return false; 5617 } 5618 } 5619 5620 @Override 5621 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 5622 if (!mHasFeature) { 5623 return; 5624 } 5625 Preconditions.checkNotNull(who, "ComponentName is null"); 5626 final int userHandle = mInjector.userHandleGetCallingUserId(); 5627 if (isManagedProfile(userHandle)) { 5628 if (parent) { 5629 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 5630 } else { 5631 which = which & PROFILE_KEYGUARD_FEATURES; 5632 } 5633 } 5634 synchronized (this) { 5635 ActiveAdmin ap = getActiveAdminForCallerLocked( 5636 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 5637 if (ap.disabledKeyguardFeatures != which) { 5638 ap.disabledKeyguardFeatures = which; 5639 saveSettingsLocked(userHandle); 5640 } 5641 } 5642 } 5643 5644 /** 5645 * Gets the disabled state for features in keyguard for the given admin, 5646 * or the aggregate of all active admins if who is null. 5647 */ 5648 @Override 5649 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 5650 if (!mHasFeature) { 5651 return 0; 5652 } 5653 enforceFullCrossUsersPermission(userHandle); 5654 final long ident = mInjector.binderClearCallingIdentity(); 5655 try { 5656 synchronized (this) { 5657 if (who != null) { 5658 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 5659 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 5660 } 5661 5662 final List<ActiveAdmin> admins; 5663 if (!parent && isManagedProfile(userHandle)) { 5664 // If we are being asked about a managed profile, just return keyguard features 5665 // disabled by admins in the profile. 5666 admins = getUserDataUnchecked(userHandle).mAdminList; 5667 } else { 5668 // Otherwise return those set by admins in the user and its profiles. 5669 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 5670 } 5671 5672 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 5673 final int N = admins.size(); 5674 for (int i = 0; i < N; i++) { 5675 ActiveAdmin admin = admins.get(i); 5676 int userId = admin.getUserHandle().getIdentifier(); 5677 boolean isRequestedUser = !parent && (userId == userHandle); 5678 if (isRequestedUser || !isManagedProfile(userId)) { 5679 // If we are being asked explicitly about this user 5680 // return all disabled features even if its a managed profile. 5681 which |= admin.disabledKeyguardFeatures; 5682 } else { 5683 // Otherwise a managed profile is only allowed to disable 5684 // some features on the parent user. 5685 which |= (admin.disabledKeyguardFeatures 5686 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 5687 } 5688 } 5689 return which; 5690 } 5691 } finally { 5692 mInjector.binderRestoreCallingIdentity(ident); 5693 } 5694 } 5695 5696 @Override 5697 public void setKeepUninstalledPackages(ComponentName who, List<String> packageList) { 5698 if (!mHasFeature) { 5699 return; 5700 } 5701 Preconditions.checkNotNull(who, "ComponentName is null"); 5702 Preconditions.checkNotNull(packageList, "packageList is null"); 5703 final int userHandle = UserHandle.getCallingUserId(); 5704 synchronized (this) { 5705 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5706 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5707 admin.keepUninstalledPackages = packageList; 5708 saveSettingsLocked(userHandle); 5709 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 5710 } 5711 } 5712 5713 @Override 5714 public List<String> getKeepUninstalledPackages(ComponentName who) { 5715 Preconditions.checkNotNull(who, "ComponentName is null"); 5716 if (!mHasFeature) { 5717 return null; 5718 } 5719 // TODO In split system user mode, allow apps on user 0 to query the list 5720 synchronized (this) { 5721 // Check if this is the device owner who is calling 5722 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5723 return getKeepUninstalledPackagesLocked(); 5724 } 5725 } 5726 5727 private List<String> getKeepUninstalledPackagesLocked() { 5728 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5729 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 5730 } 5731 5732 @Override 5733 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 5734 if (!mHasFeature) { 5735 return false; 5736 } 5737 if (admin == null 5738 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 5739 throw new IllegalArgumentException("Invalid component " + admin 5740 + " for device owner"); 5741 } 5742 synchronized (this) { 5743 enforceCanSetDeviceOwnerLocked(admin, userId); 5744 if (getActiveAdminUncheckedLocked(admin, userId) == null 5745 || getUserData(userId).mRemovingAdmins.contains(admin)) { 5746 throw new IllegalArgumentException("Not active admin: " + admin); 5747 } 5748 5749 // Shutting down backup manager service permanently. 5750 long ident = mInjector.binderClearCallingIdentity(); 5751 try { 5752 if (mInjector.getIBackupManager() != null) { 5753 mInjector.getIBackupManager() 5754 .setBackupServiceActive(UserHandle.USER_SYSTEM, false); 5755 } 5756 } catch (RemoteException e) { 5757 throw new IllegalStateException("Failed deactivating backup service.", e); 5758 } finally { 5759 mInjector.binderRestoreCallingIdentity(ident); 5760 } 5761 5762 mOwners.setDeviceOwner(admin, ownerName, userId); 5763 mOwners.writeDeviceOwner(); 5764 updateDeviceOwnerLocked(); 5765 setDeviceOwnerSystemPropertyLocked(); 5766 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 5767 5768 ident = mInjector.binderClearCallingIdentity(); 5769 try { 5770 // TODO Send to system too? 5771 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 5772 } finally { 5773 mInjector.binderRestoreCallingIdentity(ident); 5774 } 5775 Slog.i(LOG_TAG, "Device owner set: " + admin + " on user " + userId); 5776 return true; 5777 } 5778 } 5779 5780 public boolean isDeviceOwner(ComponentName who, int userId) { 5781 synchronized (this) { 5782 return mOwners.hasDeviceOwner() 5783 && mOwners.getDeviceOwnerUserId() == userId 5784 && mOwners.getDeviceOwnerComponent().equals(who); 5785 } 5786 } 5787 5788 public boolean isProfileOwner(ComponentName who, int userId) { 5789 final ComponentName profileOwner = getProfileOwner(userId); 5790 return who != null && who.equals(profileOwner); 5791 } 5792 5793 @Override 5794 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 5795 if (!mHasFeature) { 5796 return null; 5797 } 5798 if (!callingUserOnly) { 5799 enforceManageUsers(); 5800 } 5801 synchronized (this) { 5802 if (!mOwners.hasDeviceOwner()) { 5803 return null; 5804 } 5805 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 5806 mOwners.getDeviceOwnerUserId()) { 5807 return null; 5808 } 5809 return mOwners.getDeviceOwnerComponent(); 5810 } 5811 } 5812 5813 @Override 5814 public int getDeviceOwnerUserId() { 5815 if (!mHasFeature) { 5816 return UserHandle.USER_NULL; 5817 } 5818 enforceManageUsers(); 5819 synchronized (this) { 5820 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 5821 } 5822 } 5823 5824 /** 5825 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 5826 * MANAGE_USERS. 5827 */ 5828 @Override 5829 public String getDeviceOwnerName() { 5830 if (!mHasFeature) { 5831 return null; 5832 } 5833 enforceManageUsers(); 5834 synchronized (this) { 5835 if (!mOwners.hasDeviceOwner()) { 5836 return null; 5837 } 5838 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 5839 // Should setDeviceOwner/ProfileOwner still take a name? 5840 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 5841 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 5842 } 5843 } 5844 5845 // Returns the active device owner or null if there is no device owner. 5846 @VisibleForTesting 5847 ActiveAdmin getDeviceOwnerAdminLocked() { 5848 ComponentName component = mOwners.getDeviceOwnerComponent(); 5849 if (component == null) { 5850 return null; 5851 } 5852 5853 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 5854 final int n = policy.mAdminList.size(); 5855 for (int i = 0; i < n; i++) { 5856 ActiveAdmin admin = policy.mAdminList.get(i); 5857 if (component.equals(admin.info.getComponent())) { 5858 return admin; 5859 } 5860 } 5861 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 5862 return null; 5863 } 5864 5865 @Override 5866 public void clearDeviceOwner(String packageName) { 5867 Preconditions.checkNotNull(packageName, "packageName is null"); 5868 final int callingUid = mInjector.binderGetCallingUid(); 5869 try { 5870 int uid = mContext.getPackageManager().getPackageUidAsUser(packageName, 5871 UserHandle.getUserId(callingUid)); 5872 if (uid != callingUid) { 5873 throw new SecurityException("Invalid packageName"); 5874 } 5875 } catch (NameNotFoundException e) { 5876 throw new SecurityException(e); 5877 } 5878 synchronized (this) { 5879 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 5880 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 5881 if (!mOwners.hasDeviceOwner() 5882 || !deviceOwnerComponent.getPackageName().equals(packageName) 5883 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 5884 throw new SecurityException( 5885 "clearDeviceOwner can only be called by the device owner"); 5886 } 5887 enforceUserUnlocked(deviceOwnerUserId); 5888 5889 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 5890 long ident = mInjector.binderClearCallingIdentity(); 5891 try { 5892 clearDeviceOwnerLocked(admin, deviceOwnerUserId); 5893 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 5894 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 5895 mContext.sendBroadcastAsUser(intent, UserHandle.of(deviceOwnerUserId)); 5896 } finally { 5897 mInjector.binderRestoreCallingIdentity(ident); 5898 } 5899 Slog.i(LOG_TAG, "Device owner removed: " + deviceOwnerComponent); 5900 } 5901 } 5902 5903 private void clearDeviceOwnerLocked(ActiveAdmin admin, int userId) { 5904 if (admin != null) { 5905 admin.disableCamera = false; 5906 admin.userRestrictions = null; 5907 admin.forceEphemeralUsers = false; 5908 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 5909 } 5910 clearUserPoliciesLocked(userId); 5911 5912 mOwners.clearDeviceOwner(); 5913 mOwners.writeDeviceOwner(); 5914 updateDeviceOwnerLocked(); 5915 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 5916 try { 5917 if (mInjector.getIBackupManager() != null) { 5918 // Reactivate backup service. 5919 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 5920 } 5921 } catch (RemoteException e) { 5922 throw new IllegalStateException("Failed reactivating backup service.", e); 5923 } 5924 } 5925 5926 @Override 5927 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 5928 if (!mHasFeature) { 5929 return false; 5930 } 5931 if (who == null 5932 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 5933 throw new IllegalArgumentException("Component " + who 5934 + " not installed for userId:" + userHandle); 5935 } 5936 synchronized (this) { 5937 enforceCanSetProfileOwnerLocked(who, userHandle); 5938 5939 if (getActiveAdminUncheckedLocked(who, userHandle) == null 5940 || getUserData(userHandle).mRemovingAdmins.contains(who)) { 5941 throw new IllegalArgumentException("Not active admin: " + who); 5942 } 5943 5944 mOwners.setProfileOwner(who, ownerName, userHandle); 5945 mOwners.writeProfileOwner(userHandle); 5946 Slog.i(LOG_TAG, "Profile owner set: " + who + " on user " + userHandle); 5947 return true; 5948 } 5949 } 5950 5951 @Override 5952 public void clearProfileOwner(ComponentName who) { 5953 if (!mHasFeature) { 5954 return; 5955 } 5956 final UserHandle callingUser = mInjector.binderGetCallingUserHandle(); 5957 final int userId = callingUser.getIdentifier(); 5958 enforceNotManagedProfile(userId, "clear profile owner"); 5959 enforceUserUnlocked(userId); 5960 // Check if this is the profile owner who is calling 5961 final ActiveAdmin admin = 5962 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5963 synchronized (this) { 5964 final long ident = mInjector.binderClearCallingIdentity(); 5965 try { 5966 clearProfileOwnerLocked(admin, userId); 5967 removeActiveAdminLocked(who, userId); 5968 } finally { 5969 mInjector.binderRestoreCallingIdentity(ident); 5970 } 5971 Slog.i(LOG_TAG, "Profile owner " + who + " removed from user " + userId); 5972 } 5973 } 5974 5975 public void clearProfileOwnerLocked(ActiveAdmin admin, int userId) { 5976 if (admin != null) { 5977 admin.disableCamera = false; 5978 admin.userRestrictions = null; 5979 } 5980 clearUserPoliciesLocked(userId); 5981 mOwners.removeProfileOwner(userId); 5982 mOwners.writeProfileOwner(userId); 5983 } 5984 5985 @Override 5986 public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) { 5987 Preconditions.checkNotNull(who, "ComponentName is null"); 5988 if (!mHasFeature) { 5989 return; 5990 } 5991 5992 synchronized (this) { 5993 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5994 long token = mInjector.binderClearCallingIdentity(); 5995 try { 5996 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null); 5997 } finally { 5998 mInjector.binderRestoreCallingIdentity(token); 5999 } 6000 } 6001 } 6002 6003 @Override 6004 public CharSequence getDeviceOwnerLockScreenInfo() { 6005 return mLockPatternUtils.getDeviceOwnerInfo(); 6006 } 6007 6008 private void clearUserPoliciesLocked(int userId) { 6009 // Reset some of the user-specific policies 6010 DevicePolicyData policy = getUserData(userId); 6011 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 6012 policy.mDelegatedCertInstallerPackage = null; 6013 policy.mApplicationRestrictionsManagingPackage = null; 6014 policy.mStatusBarDisabled = false; 6015 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 6016 saveSettingsLocked(userId); 6017 6018 try { 6019 mIPackageManager.updatePermissionFlagsForAllApps( 6020 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6021 0 /* flagValues */, userId); 6022 pushUserRestrictions(userId); 6023 } catch (RemoteException re) { 6024 // Shouldn't happen. 6025 } 6026 } 6027 6028 @Override 6029 public boolean hasUserSetupCompleted() { 6030 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 6031 } 6032 6033 private boolean hasUserSetupCompleted(int userHandle) { 6034 if (!mHasFeature) { 6035 return true; 6036 } 6037 return getUserData(userHandle).mUserSetupComplete; 6038 } 6039 6040 @Override 6041 public int getUserProvisioningState() { 6042 if (!mHasFeature) { 6043 return DevicePolicyManager.STATE_USER_UNMANAGED; 6044 } 6045 int userHandle = mInjector.userHandleGetCallingUserId(); 6046 return getUserProvisioningState(userHandle); 6047 } 6048 6049 private int getUserProvisioningState(int userHandle) { 6050 return getUserData(userHandle).mUserProvisioningState; 6051 } 6052 6053 @Override 6054 public void setUserProvisioningState(int newState, int userHandle) { 6055 if (!mHasFeature) { 6056 return; 6057 } 6058 6059 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 6060 && getManagedUserId(userHandle) == -1) { 6061 // No managed device, user or profile, so setting provisioning state makes no sense. 6062 throw new IllegalStateException("Not allowed to change provisioning state unless a " 6063 + "device or profile owner is set."); 6064 } 6065 6066 synchronized (this) { 6067 boolean transitionCheckNeeded = true; 6068 6069 // Calling identity/permission checks. 6070 final int callingUid = mInjector.binderGetCallingUid(); 6071 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 6072 // ADB shell can only move directly from un-managed to finalized as part of directly 6073 // setting profile-owner or device-owner. 6074 if (getUserProvisioningState(userHandle) != 6075 DevicePolicyManager.STATE_USER_UNMANAGED 6076 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6077 throw new IllegalStateException("Not allowed to change provisioning state " 6078 + "unless current provisioning state is unmanaged, and new state is " 6079 + "finalized."); 6080 } 6081 transitionCheckNeeded = false; 6082 } else { 6083 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 6084 enforceCanManageProfileAndDeviceOwners(); 6085 } 6086 6087 final DevicePolicyData policyData = getUserData(userHandle); 6088 if (transitionCheckNeeded) { 6089 // Optional state transition check for non-ADB case. 6090 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 6091 } 6092 policyData.mUserProvisioningState = newState; 6093 saveSettingsLocked(userHandle); 6094 } 6095 } 6096 6097 private void checkUserProvisioningStateTransition(int currentState, int newState) { 6098 // Valid transitions for normal use-cases. 6099 switch (currentState) { 6100 case DevicePolicyManager.STATE_USER_UNMANAGED: 6101 // Can move to any state from unmanaged (except itself as an edge case).. 6102 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 6103 return; 6104 } 6105 break; 6106 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 6107 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 6108 // Can only move to finalized from these states. 6109 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6110 return; 6111 } 6112 break; 6113 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 6114 // Current user has a managed-profile, but current user is not managed, so 6115 // rather than moving to finalized state, go back to unmanaged once 6116 // profile provisioning is complete. 6117 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 6118 return; 6119 } 6120 break; 6121 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 6122 // Cannot transition out of finalized. 6123 break; 6124 } 6125 6126 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 6127 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 6128 + "from state [" + currentState + "]"); 6129 } 6130 6131 @Override 6132 public void setProfileEnabled(ComponentName who) { 6133 if (!mHasFeature) { 6134 return; 6135 } 6136 Preconditions.checkNotNull(who, "ComponentName is null"); 6137 synchronized (this) { 6138 // Check if this is the profile owner who is calling 6139 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6140 final int userId = UserHandle.getCallingUserId(); 6141 enforceManagedProfile(userId, "enable the profile"); 6142 // Check if the profile is already enabled. 6143 UserInfo managedProfile = getUserInfo(userId); 6144 if (managedProfile.isEnabled()) { 6145 Slog.e(LOG_TAG, 6146 "setProfileEnabled is called when the profile is already enabled"); 6147 return; 6148 } 6149 long id = mInjector.binderClearCallingIdentity(); 6150 try { 6151 mUserManager.setUserEnabled(userId); 6152 UserInfo parent = mUserManager.getProfileParent(userId); 6153 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 6154 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 6155 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 6156 Intent.FLAG_RECEIVER_FOREGROUND); 6157 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 6158 } finally { 6159 mInjector.binderRestoreCallingIdentity(id); 6160 } 6161 } 6162 } 6163 6164 @Override 6165 public void setProfileName(ComponentName who, String profileName) { 6166 Preconditions.checkNotNull(who, "ComponentName is null"); 6167 int userId = UserHandle.getCallingUserId(); 6168 // Check if this is the profile owner (includes device owner). 6169 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6170 6171 long id = mInjector.binderClearCallingIdentity(); 6172 try { 6173 mUserManager.setUserName(userId, profileName); 6174 } finally { 6175 mInjector.binderRestoreCallingIdentity(id); 6176 } 6177 } 6178 6179 @Override 6180 public ComponentName getProfileOwner(int userHandle) { 6181 if (!mHasFeature) { 6182 return null; 6183 } 6184 6185 synchronized (this) { 6186 return mOwners.getProfileOwnerComponent(userHandle); 6187 } 6188 } 6189 6190 // Returns the active profile owner for this user or null if the current user has no 6191 // profile owner. 6192 @VisibleForTesting 6193 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 6194 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 6195 if (profileOwner == null) { 6196 return null; 6197 } 6198 DevicePolicyData policy = getUserData(userHandle); 6199 final int n = policy.mAdminList.size(); 6200 for (int i = 0; i < n; i++) { 6201 ActiveAdmin admin = policy.mAdminList.get(i); 6202 if (profileOwner.equals(admin.info.getComponent())) { 6203 return admin; 6204 } 6205 } 6206 return null; 6207 } 6208 6209 @Override 6210 public String getProfileOwnerName(int userHandle) { 6211 if (!mHasFeature) { 6212 return null; 6213 } 6214 enforceManageUsers(); 6215 ComponentName profileOwner = getProfileOwner(userHandle); 6216 if (profileOwner == null) { 6217 return null; 6218 } 6219 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 6220 } 6221 6222 /** 6223 * Canonical name for a given package. 6224 */ 6225 private String getApplicationLabel(String packageName, int userHandle) { 6226 long token = mInjector.binderClearCallingIdentity(); 6227 try { 6228 final Context userContext; 6229 try { 6230 UserHandle handle = new UserHandle(userHandle); 6231 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 6232 } catch (PackageManager.NameNotFoundException nnfe) { 6233 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 6234 return null; 6235 } 6236 ApplicationInfo appInfo = userContext.getApplicationInfo(); 6237 CharSequence result = null; 6238 if (appInfo != null) { 6239 PackageManager pm = userContext.getPackageManager(); 6240 result = pm.getApplicationLabel(appInfo); 6241 } 6242 return result != null ? result.toString() : null; 6243 } finally { 6244 mInjector.binderRestoreCallingIdentity(token); 6245 } 6246 } 6247 6248 /** 6249 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 6250 * permission. 6251 * The profile owner can only be set before the user setup phase has completed, 6252 * except for: 6253 * - SYSTEM_UID 6254 * - adb if there are no accounts. (But see {@link #hasIncompatibleAccounts}) 6255 */ 6256 private void enforceCanSetProfileOwnerLocked(@Nullable ComponentName owner, int userHandle) { 6257 UserInfo info = getUserInfo(userHandle); 6258 if (info == null) { 6259 // User doesn't exist. 6260 throw new IllegalArgumentException( 6261 "Attempted to set profile owner for invalid userId: " + userHandle); 6262 } 6263 if (info.isGuest()) { 6264 throw new IllegalStateException("Cannot set a profile owner on a guest"); 6265 } 6266 if (mOwners.hasProfileOwner(userHandle)) { 6267 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 6268 + "is already set."); 6269 } 6270 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 6271 throw new IllegalStateException("Trying to set the profile owner, but the user " 6272 + "already has a device owner."); 6273 } 6274 int callingUid = mInjector.binderGetCallingUid(); 6275 if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) { 6276 if (hasUserSetupCompleted(userHandle) 6277 && hasIncompatibleAccounts(userHandle, owner)) { 6278 throw new IllegalStateException("Not allowed to set the profile owner because " 6279 + "there are already some accounts on the profile"); 6280 } 6281 return; 6282 } 6283 enforceCanManageProfileAndDeviceOwners(); 6284 if (hasUserSetupCompleted(userHandle) && !isCallerWithSystemUid()) { 6285 throw new IllegalStateException("Cannot set the profile owner on a user which is " 6286 + "already set-up"); 6287 } 6288 } 6289 6290 /** 6291 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 6292 * permission. 6293 */ 6294 private void enforceCanSetDeviceOwnerLocked(@Nullable ComponentName owner, int userId) { 6295 int callingUid = mInjector.binderGetCallingUid(); 6296 boolean isAdb = callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID; 6297 if (!isAdb) { 6298 enforceCanManageProfileAndDeviceOwners(); 6299 } 6300 6301 final int code = checkSetDeviceOwnerPreCondition(owner, userId, isAdb); 6302 switch (code) { 6303 case CODE_OK: 6304 return; 6305 case CODE_HAS_DEVICE_OWNER: 6306 throw new IllegalStateException( 6307 "Trying to set the device owner, but device owner is already set."); 6308 case CODE_USER_HAS_PROFILE_OWNER: 6309 throw new IllegalStateException("Trying to set the device owner, but the user " 6310 + "already has a profile owner."); 6311 case CODE_USER_NOT_RUNNING: 6312 throw new IllegalStateException("User not running: " + userId); 6313 case CODE_NOT_SYSTEM_USER: 6314 throw new IllegalStateException("User is not system user"); 6315 case CODE_USER_SETUP_COMPLETED: 6316 throw new IllegalStateException( 6317 "Cannot set the device owner if the device is already set-up"); 6318 case CODE_NONSYSTEM_USER_EXISTS: 6319 throw new IllegalStateException("Not allowed to set the device owner because there " 6320 + "are already several users on the device"); 6321 case CODE_ACCOUNTS_NOT_EMPTY: 6322 throw new IllegalStateException("Not allowed to set the device owner because there " 6323 + "are already some accounts on the device"); 6324 default: 6325 throw new IllegalStateException("Unknown @DeviceOwnerPreConditionCode " + code); 6326 } 6327 } 6328 6329 private void enforceUserUnlocked(int userId) { 6330 // Since we're doing this operation on behalf of an app, we only 6331 // want to use the actual "unlocked" state. 6332 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 6333 "User must be running and unlocked"); 6334 } 6335 6336 private void enforceManageUsers() { 6337 final int callingUid = mInjector.binderGetCallingUid(); 6338 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 6339 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 6340 } 6341 } 6342 6343 private void enforceFullCrossUsersPermission(int userHandle) { 6344 enforceSystemUserOrPermission(userHandle, 6345 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 6346 } 6347 6348 private void enforceCrossUsersPermission(int userHandle) { 6349 enforceSystemUserOrPermission(userHandle, 6350 android.Manifest.permission.INTERACT_ACROSS_USERS); 6351 } 6352 6353 private void enforceSystemUserOrPermission(int userHandle, String permission) { 6354 if (userHandle < 0) { 6355 throw new IllegalArgumentException("Invalid userId " + userHandle); 6356 } 6357 final int callingUid = mInjector.binderGetCallingUid(); 6358 if (userHandle == UserHandle.getUserId(callingUid)) { 6359 return; 6360 } 6361 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 6362 mContext.enforceCallingOrSelfPermission(permission, 6363 "Must be system or have " + permission + " permission"); 6364 } 6365 } 6366 6367 private void enforceManagedProfile(int userHandle, String message) { 6368 if(!isManagedProfile(userHandle)) { 6369 throw new SecurityException("You can not " + message + " outside a managed profile."); 6370 } 6371 } 6372 6373 private void enforceNotManagedProfile(int userHandle, String message) { 6374 if(isManagedProfile(userHandle)) { 6375 throw new SecurityException("You can not " + message + " for a managed profile."); 6376 } 6377 } 6378 6379 private void ensureCallerPackage(@Nullable String packageName) { 6380 if (packageName == null) { 6381 Preconditions.checkState(isCallerWithSystemUid(), 6382 "Only caller can omit package name"); 6383 } else { 6384 final int callingUid = mInjector.binderGetCallingUid(); 6385 final int userId = mInjector.userHandleGetCallingUserId(); 6386 try { 6387 final ApplicationInfo ai = mIPackageManager.getApplicationInfo( 6388 packageName, 0, userId); 6389 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name"); 6390 } catch (RemoteException e) { 6391 // Shouldn't happen 6392 } 6393 } 6394 } 6395 6396 private boolean isCallerWithSystemUid() { 6397 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 6398 } 6399 6400 private int getProfileParentId(int userHandle) { 6401 final long ident = mInjector.binderClearCallingIdentity(); 6402 try { 6403 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 6404 return parentUser != null ? parentUser.id : userHandle; 6405 } finally { 6406 mInjector.binderRestoreCallingIdentity(ident); 6407 } 6408 } 6409 6410 private int getCredentialOwner(int userHandle, boolean parent) { 6411 final long ident = mInjector.binderClearCallingIdentity(); 6412 try { 6413 if (parent) { 6414 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 6415 if (parentProfile != null) { 6416 userHandle = parentProfile.id; 6417 } 6418 } 6419 return mUserManager.getCredentialOwnerProfile(userHandle); 6420 } finally { 6421 mInjector.binderRestoreCallingIdentity(ident); 6422 } 6423 } 6424 6425 private boolean isManagedProfile(int userHandle) { 6426 return getUserInfo(userHandle).isManagedProfile(); 6427 } 6428 6429 private void enableIfNecessary(String packageName, int userId) { 6430 try { 6431 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 6432 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 6433 userId); 6434 if (ai.enabledSetting 6435 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 6436 mIPackageManager.setApplicationEnabledSetting(packageName, 6437 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 6438 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 6439 } 6440 } catch (RemoteException e) { 6441 } 6442 } 6443 6444 @Override 6445 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 6446 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 6447 != PackageManager.PERMISSION_GRANTED) { 6448 6449 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 6450 + mInjector.binderGetCallingPid() 6451 + ", uid=" + mInjector.binderGetCallingUid()); 6452 return; 6453 } 6454 6455 synchronized (this) { 6456 pw.println("Current Device Policy Manager state:"); 6457 mOwners.dump(" ", pw); 6458 int userCount = mUserData.size(); 6459 for (int u = 0; u < userCount; u++) { 6460 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 6461 pw.println(); 6462 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 6463 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 6464 final int N = policy.mAdminList.size(); 6465 for (int i=0; i<N; i++) { 6466 ActiveAdmin ap = policy.mAdminList.get(i); 6467 if (ap != null) { 6468 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 6469 pw.println(":"); 6470 ap.dump(" ", pw); 6471 } 6472 } 6473 if (!policy.mRemovingAdmins.isEmpty()) { 6474 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 6475 + policy.mRemovingAdmins); 6476 } 6477 6478 pw.println(" "); 6479 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 6480 } 6481 pw.println(); 6482 pw.println("Encryption Status: " + getEncryptionStatusName(getEncryptionStatus())); 6483 } 6484 } 6485 6486 private String getEncryptionStatusName(int encryptionStatus) { 6487 switch (encryptionStatus) { 6488 case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE: 6489 return "inactive"; 6490 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: 6491 return "block default key"; 6492 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE: 6493 return "block"; 6494 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER: 6495 return "per-user"; 6496 case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED: 6497 return "unsupported"; 6498 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING: 6499 return "activating"; 6500 default: 6501 return "unknown"; 6502 } 6503 } 6504 6505 @Override 6506 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 6507 ComponentName activity) { 6508 Preconditions.checkNotNull(who, "ComponentName is null"); 6509 final int userHandle = UserHandle.getCallingUserId(); 6510 synchronized (this) { 6511 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6512 6513 long id = mInjector.binderClearCallingIdentity(); 6514 try { 6515 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 6516 } catch (RemoteException re) { 6517 // Shouldn't happen 6518 } finally { 6519 mInjector.binderRestoreCallingIdentity(id); 6520 } 6521 } 6522 } 6523 6524 @Override 6525 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 6526 Preconditions.checkNotNull(who, "ComponentName is null"); 6527 final int userHandle = UserHandle.getCallingUserId(); 6528 synchronized (this) { 6529 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6530 6531 long id = mInjector.binderClearCallingIdentity(); 6532 try { 6533 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 6534 } catch (RemoteException re) { 6535 // Shouldn't happen 6536 } finally { 6537 mInjector.binderRestoreCallingIdentity(id); 6538 } 6539 } 6540 } 6541 6542 @Override 6543 public boolean setApplicationRestrictionsManagingPackage(ComponentName admin, 6544 String packageName) { 6545 Preconditions.checkNotNull(admin, "ComponentName is null"); 6546 6547 final int userHandle = mInjector.userHandleGetCallingUserId(); 6548 synchronized (this) { 6549 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6550 if (packageName != null && !isPackageInstalledForUser(packageName, userHandle)) { 6551 return false; 6552 } 6553 DevicePolicyData policy = getUserData(userHandle); 6554 policy.mApplicationRestrictionsManagingPackage = packageName; 6555 saveSettingsLocked(userHandle); 6556 return true; 6557 } 6558 } 6559 6560 @Override 6561 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 6562 Preconditions.checkNotNull(admin, "ComponentName is null"); 6563 6564 final int userHandle = mInjector.userHandleGetCallingUserId(); 6565 synchronized (this) { 6566 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6567 DevicePolicyData policy = getUserData(userHandle); 6568 return policy.mApplicationRestrictionsManagingPackage; 6569 } 6570 } 6571 6572 @Override 6573 public boolean isCallerApplicationRestrictionsManagingPackage() { 6574 final int callingUid = mInjector.binderGetCallingUid(); 6575 final int userHandle = UserHandle.getUserId(callingUid); 6576 synchronized (this) { 6577 final DevicePolicyData policy = getUserData(userHandle); 6578 if (policy.mApplicationRestrictionsManagingPackage == null) { 6579 return false; 6580 } 6581 6582 try { 6583 int uid = mContext.getPackageManager().getPackageUidAsUser( 6584 policy.mApplicationRestrictionsManagingPackage, userHandle); 6585 return uid == callingUid; 6586 } catch (NameNotFoundException e) { 6587 return false; 6588 } 6589 } 6590 } 6591 6592 private void enforceCanManageApplicationRestrictions(ComponentName who) { 6593 if (who != null) { 6594 synchronized (this) { 6595 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6596 } 6597 } else if (!isCallerApplicationRestrictionsManagingPackage()) { 6598 throw new SecurityException( 6599 "No admin component given, and caller cannot manage application restrictions " 6600 + "for other apps."); 6601 } 6602 } 6603 6604 @Override 6605 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 6606 enforceCanManageApplicationRestrictions(who); 6607 6608 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 6609 final long id = mInjector.binderClearCallingIdentity(); 6610 try { 6611 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 6612 } finally { 6613 mInjector.binderRestoreCallingIdentity(id); 6614 } 6615 } 6616 6617 @Override 6618 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 6619 PersistableBundle args, boolean parent) { 6620 if (!mHasFeature) { 6621 return; 6622 } 6623 Preconditions.checkNotNull(admin, "admin is null"); 6624 Preconditions.checkNotNull(agent, "agent is null"); 6625 final int userHandle = UserHandle.getCallingUserId(); 6626 synchronized (this) { 6627 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 6628 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 6629 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 6630 saveSettingsLocked(userHandle); 6631 } 6632 } 6633 6634 @Override 6635 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 6636 ComponentName agent, int userHandle, boolean parent) { 6637 if (!mHasFeature) { 6638 return null; 6639 } 6640 Preconditions.checkNotNull(agent, "agent null"); 6641 enforceFullCrossUsersPermission(userHandle); 6642 6643 synchronized (this) { 6644 final String componentName = agent.flattenToString(); 6645 if (admin != null) { 6646 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle, parent); 6647 if (ap == null) return null; 6648 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 6649 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 6650 List<PersistableBundle> result = new ArrayList<>(); 6651 result.add(trustAgentInfo.options); 6652 return result; 6653 } 6654 6655 // Return strictest policy for this user and profiles that are visible from this user. 6656 List<PersistableBundle> result = null; 6657 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 6658 // of the options. If any admin doesn't have options, discard options for the rest 6659 // and return null. 6660 List<ActiveAdmin> admins = 6661 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 6662 boolean allAdminsHaveOptions = true; 6663 final int N = admins.size(); 6664 for (int i = 0; i < N; i++) { 6665 final ActiveAdmin active = admins.get(i); 6666 6667 final boolean disablesTrust = (active.disabledKeyguardFeatures 6668 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 6669 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 6670 if (info != null && info.options != null && !info.options.isEmpty()) { 6671 if (disablesTrust) { 6672 if (result == null) { 6673 result = new ArrayList<>(); 6674 } 6675 result.add(info.options); 6676 } else { 6677 Log.w(LOG_TAG, "Ignoring admin " + active.info 6678 + " because it has trust options but doesn't declare " 6679 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 6680 } 6681 } else if (disablesTrust) { 6682 allAdminsHaveOptions = false; 6683 break; 6684 } 6685 } 6686 return allAdminsHaveOptions ? result : null; 6687 } 6688 } 6689 6690 @Override 6691 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 6692 Preconditions.checkNotNull(who, "ComponentName is null"); 6693 synchronized (this) { 6694 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6695 6696 int userHandle = UserHandle.getCallingUserId(); 6697 DevicePolicyData userData = getUserData(userHandle); 6698 userData.mRestrictionsProvider = permissionProvider; 6699 saveSettingsLocked(userHandle); 6700 } 6701 } 6702 6703 @Override 6704 public ComponentName getRestrictionsProvider(int userHandle) { 6705 synchronized (this) { 6706 if (!isCallerWithSystemUid()) { 6707 throw new SecurityException("Only the system can query the permission provider"); 6708 } 6709 DevicePolicyData userData = getUserData(userHandle); 6710 return userData != null ? userData.mRestrictionsProvider : null; 6711 } 6712 } 6713 6714 @Override 6715 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 6716 Preconditions.checkNotNull(who, "ComponentName is null"); 6717 int callingUserId = UserHandle.getCallingUserId(); 6718 synchronized (this) { 6719 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6720 6721 long id = mInjector.binderClearCallingIdentity(); 6722 try { 6723 UserInfo parent = mUserManager.getProfileParent(callingUserId); 6724 if (parent == null) { 6725 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 6726 + "parent"); 6727 return; 6728 } 6729 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 6730 mIPackageManager.addCrossProfileIntentFilter( 6731 filter, who.getPackageName(), callingUserId, parent.id, 0); 6732 } 6733 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 6734 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 6735 parent.id, callingUserId, 0); 6736 } 6737 } catch (RemoteException re) { 6738 // Shouldn't happen 6739 } finally { 6740 mInjector.binderRestoreCallingIdentity(id); 6741 } 6742 } 6743 } 6744 6745 @Override 6746 public void clearCrossProfileIntentFilters(ComponentName who) { 6747 Preconditions.checkNotNull(who, "ComponentName is null"); 6748 int callingUserId = UserHandle.getCallingUserId(); 6749 synchronized (this) { 6750 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6751 long id = mInjector.binderClearCallingIdentity(); 6752 try { 6753 UserInfo parent = mUserManager.getProfileParent(callingUserId); 6754 if (parent == null) { 6755 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 6756 + "parent"); 6757 return; 6758 } 6759 // Removing those that go from the managed profile to the parent. 6760 mIPackageManager.clearCrossProfileIntentFilters( 6761 callingUserId, who.getPackageName()); 6762 // And those that go from the parent to the managed profile. 6763 // If we want to support multiple managed profiles, we will have to only remove 6764 // those that have callingUserId as their target. 6765 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 6766 } catch (RemoteException re) { 6767 // Shouldn't happen 6768 } finally { 6769 mInjector.binderRestoreCallingIdentity(id); 6770 } 6771 } 6772 } 6773 6774 /** 6775 * @return true if all packages in enabledPackages are either in the list 6776 * permittedList or are a system app. 6777 */ 6778 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 6779 List<String> permittedList, int userIdToCheck) { 6780 long id = mInjector.binderClearCallingIdentity(); 6781 try { 6782 // If we have an enabled packages list for a managed profile the packages 6783 // we should check are installed for the parent user. 6784 UserInfo user = getUserInfo(userIdToCheck); 6785 if (user.isManagedProfile()) { 6786 userIdToCheck = user.profileGroupId; 6787 } 6788 6789 for (String enabledPackage : enabledPackages) { 6790 boolean systemService = false; 6791 try { 6792 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 6793 enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 6794 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 6795 } catch (RemoteException e) { 6796 Log.i(LOG_TAG, "Can't talk to package managed", e); 6797 } 6798 if (!systemService && !permittedList.contains(enabledPackage)) { 6799 return false; 6800 } 6801 } 6802 } finally { 6803 mInjector.binderRestoreCallingIdentity(id); 6804 } 6805 return true; 6806 } 6807 6808 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 6809 // Not using AccessibilityManager.getInstance because that guesses 6810 // at the user you require based on callingUid and caches for a given 6811 // process. 6812 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 6813 IAccessibilityManager service = iBinder == null 6814 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 6815 return new AccessibilityManager(mContext, service, userId); 6816 } 6817 6818 @Override 6819 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 6820 if (!mHasFeature) { 6821 return false; 6822 } 6823 Preconditions.checkNotNull(who, "ComponentName is null"); 6824 6825 if (packageList != null) { 6826 int userId = UserHandle.getCallingUserId(); 6827 List<AccessibilityServiceInfo> enabledServices = null; 6828 long id = mInjector.binderClearCallingIdentity(); 6829 try { 6830 UserInfo user = getUserInfo(userId); 6831 if (user.isManagedProfile()) { 6832 userId = user.profileGroupId; 6833 } 6834 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 6835 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 6836 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 6837 } finally { 6838 mInjector.binderRestoreCallingIdentity(id); 6839 } 6840 6841 if (enabledServices != null) { 6842 List<String> enabledPackages = new ArrayList<String>(); 6843 for (AccessibilityServiceInfo service : enabledServices) { 6844 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 6845 } 6846 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 6847 userId)) { 6848 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 6849 + "because it contains already enabled accesibility services."); 6850 return false; 6851 } 6852 } 6853 } 6854 6855 synchronized (this) { 6856 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6857 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6858 admin.permittedAccessiblityServices = packageList; 6859 saveSettingsLocked(UserHandle.getCallingUserId()); 6860 } 6861 return true; 6862 } 6863 6864 @Override 6865 public List getPermittedAccessibilityServices(ComponentName who) { 6866 if (!mHasFeature) { 6867 return null; 6868 } 6869 Preconditions.checkNotNull(who, "ComponentName is null"); 6870 6871 synchronized (this) { 6872 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6873 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6874 return admin.permittedAccessiblityServices; 6875 } 6876 } 6877 6878 @Override 6879 public List getPermittedAccessibilityServicesForUser(int userId) { 6880 if (!mHasFeature) { 6881 return null; 6882 } 6883 synchronized (this) { 6884 List<String> result = null; 6885 // If we have multiple profiles we return the intersection of the 6886 // permitted lists. This can happen in cases where we have a device 6887 // and profile owner. 6888 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 6889 for (int profileId : profileIds) { 6890 // Just loop though all admins, only device or profiles 6891 // owners can have permitted lists set. 6892 DevicePolicyData policy = getUserDataUnchecked(profileId); 6893 final int N = policy.mAdminList.size(); 6894 for (int j = 0; j < N; j++) { 6895 ActiveAdmin admin = policy.mAdminList.get(j); 6896 List<String> fromAdmin = admin.permittedAccessiblityServices; 6897 if (fromAdmin != null) { 6898 if (result == null) { 6899 result = new ArrayList<>(fromAdmin); 6900 } else { 6901 result.retainAll(fromAdmin); 6902 } 6903 } 6904 } 6905 } 6906 6907 // If we have a permitted list add all system accessibility services. 6908 if (result != null) { 6909 long id = mInjector.binderClearCallingIdentity(); 6910 try { 6911 UserInfo user = getUserInfo(userId); 6912 if (user.isManagedProfile()) { 6913 userId = user.profileGroupId; 6914 } 6915 AccessibilityManager accessibilityManager = 6916 getAccessibilityManagerForUser(userId); 6917 List<AccessibilityServiceInfo> installedServices = 6918 accessibilityManager.getInstalledAccessibilityServiceList(); 6919 6920 if (installedServices != null) { 6921 for (AccessibilityServiceInfo service : installedServices) { 6922 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 6923 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 6924 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 6925 result.add(serviceInfo.packageName); 6926 } 6927 } 6928 } 6929 } finally { 6930 mInjector.binderRestoreCallingIdentity(id); 6931 } 6932 } 6933 6934 return result; 6935 } 6936 } 6937 6938 @Override 6939 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 6940 int userHandle) { 6941 if (!mHasFeature) { 6942 return true; 6943 } 6944 Preconditions.checkNotNull(who, "ComponentName is null"); 6945 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 6946 if (!isCallerWithSystemUid()){ 6947 throw new SecurityException( 6948 "Only the system can query if an accessibility service is disabled by admin"); 6949 } 6950 synchronized (this) { 6951 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6952 if (admin == null) { 6953 return false; 6954 } 6955 if (admin.permittedAccessiblityServices == null) { 6956 return true; 6957 } 6958 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 6959 admin.permittedAccessiblityServices, userHandle); 6960 } 6961 } 6962 6963 private boolean checkCallerIsCurrentUserOrProfile() { 6964 int callingUserId = UserHandle.getCallingUserId(); 6965 long token = mInjector.binderClearCallingIdentity(); 6966 try { 6967 UserInfo currentUser; 6968 UserInfo callingUser = getUserInfo(callingUserId); 6969 try { 6970 currentUser = mInjector.getIActivityManager().getCurrentUser(); 6971 } catch (RemoteException e) { 6972 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 6973 return false; 6974 } 6975 6976 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 6977 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 6978 + "of a user that isn't the foreground user."); 6979 return false; 6980 } 6981 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 6982 Slog.e(LOG_TAG, "Cannot set permitted input methods " 6983 + "of a user that isn't the foreground user."); 6984 return false; 6985 } 6986 } finally { 6987 mInjector.binderRestoreCallingIdentity(token); 6988 } 6989 return true; 6990 } 6991 6992 @Override 6993 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 6994 if (!mHasFeature) { 6995 return false; 6996 } 6997 Preconditions.checkNotNull(who, "ComponentName is null"); 6998 6999 // TODO When InputMethodManager supports per user calls remove 7000 // this restriction. 7001 if (!checkCallerIsCurrentUserOrProfile()) { 7002 return false; 7003 } 7004 7005 if (packageList != null) { 7006 // InputMethodManager fetches input methods for current user. 7007 // So this can only be set when calling user is the current user 7008 // or parent is current user in case of managed profiles. 7009 InputMethodManager inputMethodManager = 7010 mContext.getSystemService(InputMethodManager.class); 7011 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 7012 7013 if (enabledImes != null) { 7014 List<String> enabledPackages = new ArrayList<String>(); 7015 for (InputMethodInfo ime : enabledImes) { 7016 enabledPackages.add(ime.getPackageName()); 7017 } 7018 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7019 mInjector.binderGetCallingUserHandle().getIdentifier())) { 7020 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 7021 + "because it contains already enabled input method."); 7022 return false; 7023 } 7024 } 7025 } 7026 7027 synchronized (this) { 7028 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7029 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7030 admin.permittedInputMethods = packageList; 7031 saveSettingsLocked(UserHandle.getCallingUserId()); 7032 } 7033 return true; 7034 } 7035 7036 @Override 7037 public List getPermittedInputMethods(ComponentName who) { 7038 if (!mHasFeature) { 7039 return null; 7040 } 7041 Preconditions.checkNotNull(who, "ComponentName is null"); 7042 7043 synchronized (this) { 7044 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7045 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7046 return admin.permittedInputMethods; 7047 } 7048 } 7049 7050 @Override 7051 public List getPermittedInputMethodsForCurrentUser() { 7052 UserInfo currentUser; 7053 try { 7054 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7055 } catch (RemoteException e) { 7056 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 7057 // Activity managed is dead, just allow all IMEs 7058 return null; 7059 } 7060 7061 int userId = currentUser.id; 7062 synchronized (this) { 7063 List<String> result = null; 7064 // If we have multiple profiles we return the intersection of the 7065 // permitted lists. This can happen in cases where we have a device 7066 // and profile owner. 7067 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 7068 for (int profileId : profileIds) { 7069 // Just loop though all admins, only device or profiles 7070 // owners can have permitted lists set. 7071 DevicePolicyData policy = getUserDataUnchecked(profileId); 7072 final int N = policy.mAdminList.size(); 7073 for (int j = 0; j < N; j++) { 7074 ActiveAdmin admin = policy.mAdminList.get(j); 7075 List<String> fromAdmin = admin.permittedInputMethods; 7076 if (fromAdmin != null) { 7077 if (result == null) { 7078 result = new ArrayList<String>(fromAdmin); 7079 } else { 7080 result.retainAll(fromAdmin); 7081 } 7082 } 7083 } 7084 } 7085 7086 // If we have a permitted list add all system input methods. 7087 if (result != null) { 7088 InputMethodManager inputMethodManager = 7089 mContext.getSystemService(InputMethodManager.class); 7090 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 7091 long id = mInjector.binderClearCallingIdentity(); 7092 try { 7093 if (imes != null) { 7094 for (InputMethodInfo ime : imes) { 7095 ServiceInfo serviceInfo = ime.getServiceInfo(); 7096 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7097 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7098 result.add(serviceInfo.packageName); 7099 } 7100 } 7101 } 7102 } finally { 7103 mInjector.binderRestoreCallingIdentity(id); 7104 } 7105 } 7106 return result; 7107 } 7108 } 7109 7110 @Override 7111 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 7112 int userHandle) { 7113 if (!mHasFeature) { 7114 return true; 7115 } 7116 Preconditions.checkNotNull(who, "ComponentName is null"); 7117 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7118 if (!isCallerWithSystemUid()) { 7119 throw new SecurityException( 7120 "Only the system can query if an input method is disabled by admin"); 7121 } 7122 synchronized (this) { 7123 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7124 if (admin == null) { 7125 return false; 7126 } 7127 if (admin.permittedInputMethods == null) { 7128 return true; 7129 } 7130 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 7131 admin.permittedInputMethods, userHandle); 7132 } 7133 } 7134 7135 private void sendAdminEnabledBroadcastLocked(int userHandle) { 7136 DevicePolicyData policyData = getUserData(userHandle); 7137 if (policyData.mAdminBroadcastPending) { 7138 // Send the initialization data to profile owner and delete the data 7139 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 7140 if (admin != null) { 7141 PersistableBundle initBundle = policyData.mInitBundle; 7142 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 7143 initBundle == null ? null : new Bundle(initBundle), null); 7144 } 7145 policyData.mInitBundle = null; 7146 policyData.mAdminBroadcastPending = false; 7147 saveSettingsLocked(userHandle); 7148 } 7149 } 7150 7151 @Override 7152 public UserHandle createAndManageUser(ComponentName admin, String name, 7153 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 7154 Preconditions.checkNotNull(admin, "admin is null"); 7155 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 7156 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 7157 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 7158 + admin + " are not in the same package"); 7159 } 7160 // Only allow the system user to use this method 7161 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 7162 throw new SecurityException("createAndManageUser was called from non-system user"); 7163 } 7164 if (!mInjector.userManagerIsSplitSystemUser() 7165 && (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 7166 throw new IllegalArgumentException( 7167 "Ephemeral users are only supported on systems with a split system user."); 7168 } 7169 // Create user. 7170 UserHandle user = null; 7171 synchronized (this) { 7172 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7173 7174 final long id = mInjector.binderClearCallingIdentity(); 7175 try { 7176 int userInfoFlags = 0; 7177 if ((flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 7178 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 7179 } 7180 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 7181 userInfoFlags); 7182 if (userInfo != null) { 7183 user = userInfo.getUserHandle(); 7184 } 7185 } finally { 7186 mInjector.binderRestoreCallingIdentity(id); 7187 } 7188 } 7189 if (user == null) { 7190 return null; 7191 } 7192 // Set admin. 7193 final long id = mInjector.binderClearCallingIdentity(); 7194 try { 7195 final String adminPkg = admin.getPackageName(); 7196 7197 final int userHandle = user.getIdentifier(); 7198 try { 7199 // Install the profile owner if not present. 7200 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 7201 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle); 7202 } 7203 } catch (RemoteException e) { 7204 Slog.e(LOG_TAG, "Failed to make remote calls for createAndManageUser, " 7205 + "removing created user", e); 7206 mUserManager.removeUser(user.getIdentifier()); 7207 return null; 7208 } 7209 7210 setActiveAdmin(profileOwner, true, userHandle); 7211 // User is not started yet, the broadcast by setActiveAdmin will not be received. 7212 // So we store adminExtras for broadcasting when the user starts for first time. 7213 synchronized(this) { 7214 DevicePolicyData policyData = getUserData(userHandle); 7215 policyData.mInitBundle = adminExtras; 7216 policyData.mAdminBroadcastPending = true; 7217 saveSettingsLocked(userHandle); 7218 } 7219 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 7220 setProfileOwner(profileOwner, ownerName, userHandle); 7221 7222 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 7223 Settings.Secure.putIntForUser(mContext.getContentResolver(), 7224 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 7225 } 7226 7227 return user; 7228 } finally { 7229 mInjector.binderRestoreCallingIdentity(id); 7230 } 7231 } 7232 7233 @Override 7234 public boolean removeUser(ComponentName who, UserHandle userHandle) { 7235 Preconditions.checkNotNull(who, "ComponentName is null"); 7236 synchronized (this) { 7237 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7238 7239 long id = mInjector.binderClearCallingIdentity(); 7240 try { 7241 return mUserManager.removeUser(userHandle.getIdentifier()); 7242 } finally { 7243 mInjector.binderRestoreCallingIdentity(id); 7244 } 7245 } 7246 } 7247 7248 @Override 7249 public boolean switchUser(ComponentName who, UserHandle userHandle) { 7250 Preconditions.checkNotNull(who, "ComponentName is null"); 7251 synchronized (this) { 7252 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7253 7254 long id = mInjector.binderClearCallingIdentity(); 7255 try { 7256 int userId = UserHandle.USER_SYSTEM; 7257 if (userHandle != null) { 7258 userId = userHandle.getIdentifier(); 7259 } 7260 return mInjector.getIActivityManager().switchUser(userId); 7261 } catch (RemoteException e) { 7262 Log.e(LOG_TAG, "Couldn't switch user", e); 7263 return false; 7264 } finally { 7265 mInjector.binderRestoreCallingIdentity(id); 7266 } 7267 } 7268 } 7269 7270 @Override 7271 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 7272 enforceCanManageApplicationRestrictions(who); 7273 7274 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 7275 final long id = mInjector.binderClearCallingIdentity(); 7276 try { 7277 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 7278 // if no restrictions were saved, mUserManager.getApplicationRestrictions 7279 // returns null, but DPM method should return an empty Bundle as per JavaDoc 7280 return bundle != null ? bundle : Bundle.EMPTY; 7281 } finally { 7282 mInjector.binderRestoreCallingIdentity(id); 7283 } 7284 } 7285 7286 @Override 7287 public String[] setPackagesSuspended(ComponentName who, String[] packageNames, 7288 boolean suspended) { 7289 Preconditions.checkNotNull(who, "ComponentName is null"); 7290 int callingUserId = UserHandle.getCallingUserId(); 7291 synchronized (this) { 7292 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7293 7294 long id = mInjector.binderClearCallingIdentity(); 7295 try { 7296 return mIPackageManager.setPackagesSuspendedAsUser( 7297 packageNames, suspended, callingUserId); 7298 } catch (RemoteException re) { 7299 // Shouldn't happen. 7300 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 7301 } finally { 7302 mInjector.binderRestoreCallingIdentity(id); 7303 } 7304 return packageNames; 7305 } 7306 } 7307 7308 @Override 7309 public boolean isPackageSuspended(ComponentName who, String packageName) { 7310 Preconditions.checkNotNull(who, "ComponentName is null"); 7311 int callingUserId = UserHandle.getCallingUserId(); 7312 synchronized (this) { 7313 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7314 7315 long id = mInjector.binderClearCallingIdentity(); 7316 try { 7317 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 7318 } catch (RemoteException re) { 7319 // Shouldn't happen. 7320 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 7321 } finally { 7322 mInjector.binderRestoreCallingIdentity(id); 7323 } 7324 return false; 7325 } 7326 } 7327 7328 @Override 7329 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 7330 Preconditions.checkNotNull(who, "ComponentName is null"); 7331 if (!UserRestrictionsUtils.isValidRestriction(key)) { 7332 return; 7333 } 7334 7335 final int userHandle = mInjector.userHandleGetCallingUserId(); 7336 synchronized (this) { 7337 ActiveAdmin activeAdmin = 7338 getActiveAdminForCallerLocked(who, 7339 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7340 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 7341 if (isDeviceOwner) { 7342 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 7343 throw new SecurityException("Device owner cannot set user restriction " + key); 7344 } 7345 } else { // profile owner 7346 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 7347 throw new SecurityException("Profile owner cannot set user restriction " + key); 7348 } 7349 } 7350 7351 // Save the restriction to ActiveAdmin. 7352 activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner); 7353 saveSettingsLocked(userHandle); 7354 7355 pushUserRestrictions(userHandle); 7356 7357 sendChangedNotification(userHandle); 7358 } 7359 } 7360 7361 private void pushUserRestrictions(int userId) { 7362 synchronized (this) { 7363 final Bundle global; 7364 final Bundle local = new Bundle(); 7365 if (mOwners.isDeviceOwnerUserId(userId)) { 7366 global = new Bundle(); 7367 7368 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 7369 if (deviceOwner == null) { 7370 return; // Shouldn't happen. 7371 } 7372 7373 UserRestrictionsUtils.sortToGlobalAndLocal(deviceOwner.userRestrictions, 7374 global, local); 7375 // DO can disable camera globally. 7376 if (deviceOwner.disableCamera) { 7377 global.putBoolean(UserManager.DISALLOW_CAMERA, true); 7378 } 7379 } else { 7380 global = null; 7381 7382 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 7383 if (profileOwner != null) { 7384 UserRestrictionsUtils.merge(local, profileOwner.userRestrictions); 7385 } 7386 } 7387 // Also merge in *local* camera restriction. 7388 if (getCameraDisabled(/* who= */ null, 7389 userId, /* mergeDeviceOwnerRestriction= */ false)) { 7390 local.putBoolean(UserManager.DISALLOW_CAMERA, true); 7391 } 7392 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, local, global); 7393 } 7394 } 7395 7396 @Override 7397 public Bundle getUserRestrictions(ComponentName who) { 7398 if (!mHasFeature) { 7399 return null; 7400 } 7401 Preconditions.checkNotNull(who, "ComponentName is null"); 7402 synchronized (this) { 7403 final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who, 7404 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7405 return activeAdmin.userRestrictions; 7406 } 7407 } 7408 7409 @Override 7410 public boolean setApplicationHidden(ComponentName who, String packageName, 7411 boolean hidden) { 7412 Preconditions.checkNotNull(who, "ComponentName is null"); 7413 int callingUserId = UserHandle.getCallingUserId(); 7414 synchronized (this) { 7415 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7416 7417 long id = mInjector.binderClearCallingIdentity(); 7418 try { 7419 return mIPackageManager.setApplicationHiddenSettingAsUser( 7420 packageName, hidden, callingUserId); 7421 } catch (RemoteException re) { 7422 // shouldn't happen 7423 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 7424 } finally { 7425 mInjector.binderRestoreCallingIdentity(id); 7426 } 7427 return false; 7428 } 7429 } 7430 7431 @Override 7432 public boolean isApplicationHidden(ComponentName who, String packageName) { 7433 Preconditions.checkNotNull(who, "ComponentName is null"); 7434 int callingUserId = UserHandle.getCallingUserId(); 7435 synchronized (this) { 7436 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7437 7438 long id = mInjector.binderClearCallingIdentity(); 7439 try { 7440 return mIPackageManager.getApplicationHiddenSettingAsUser( 7441 packageName, callingUserId); 7442 } catch (RemoteException re) { 7443 // shouldn't happen 7444 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 7445 } finally { 7446 mInjector.binderRestoreCallingIdentity(id); 7447 } 7448 return false; 7449 } 7450 } 7451 7452 @Override 7453 public void enableSystemApp(ComponentName who, String packageName) { 7454 Preconditions.checkNotNull(who, "ComponentName is null"); 7455 synchronized (this) { 7456 // This API can only be called by an active device admin, 7457 // so try to retrieve it to check that the caller is one. 7458 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7459 7460 int userId = UserHandle.getCallingUserId(); 7461 long id = mInjector.binderClearCallingIdentity(); 7462 7463 try { 7464 if (VERBOSE_LOG) { 7465 Slog.v(LOG_TAG, "installing " + packageName + " for " 7466 + userId); 7467 } 7468 7469 int parentUserId = getProfileParentId(userId); 7470 if (!isSystemApp(mIPackageManager, packageName, parentUserId)) { 7471 throw new IllegalArgumentException("Only system apps can be enabled this way."); 7472 } 7473 7474 // Install the app. 7475 mIPackageManager.installExistingPackageAsUser(packageName, userId); 7476 7477 } catch (RemoteException re) { 7478 // shouldn't happen 7479 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 7480 } finally { 7481 mInjector.binderRestoreCallingIdentity(id); 7482 } 7483 } 7484 } 7485 7486 @Override 7487 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 7488 Preconditions.checkNotNull(who, "ComponentName is null"); 7489 synchronized (this) { 7490 // This API can only be called by an active device admin, 7491 // so try to retrieve it to check that the caller is one. 7492 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7493 7494 int userId = UserHandle.getCallingUserId(); 7495 long id = mInjector.binderClearCallingIdentity(); 7496 7497 try { 7498 int parentUserId = getProfileParentId(userId); 7499 List<ResolveInfo> activitiesToEnable = mIPackageManager 7500 .queryIntentActivities(intent, 7501 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 7502 PackageManager.MATCH_DIRECT_BOOT_AWARE 7503 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 7504 parentUserId) 7505 .getList(); 7506 7507 if (VERBOSE_LOG) { 7508 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 7509 } 7510 int numberOfAppsInstalled = 0; 7511 if (activitiesToEnable != null) { 7512 for (ResolveInfo info : activitiesToEnable) { 7513 if (info.activityInfo != null) { 7514 String packageName = info.activityInfo.packageName; 7515 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 7516 numberOfAppsInstalled++; 7517 mIPackageManager.installExistingPackageAsUser(packageName, userId); 7518 } else { 7519 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 7520 + " system app"); 7521 } 7522 } 7523 } 7524 } 7525 return numberOfAppsInstalled; 7526 } catch (RemoteException e) { 7527 // shouldn't happen 7528 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 7529 return 0; 7530 } finally { 7531 mInjector.binderRestoreCallingIdentity(id); 7532 } 7533 } 7534 } 7535 7536 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 7537 throws RemoteException { 7538 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 7539 userId); 7540 if (appInfo == null) { 7541 throw new IllegalArgumentException("The application " + packageName + 7542 " is not present on this device"); 7543 } 7544 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 7545 } 7546 7547 @Override 7548 public void setAccountManagementDisabled(ComponentName who, String accountType, 7549 boolean disabled) { 7550 if (!mHasFeature) { 7551 return; 7552 } 7553 Preconditions.checkNotNull(who, "ComponentName is null"); 7554 synchronized (this) { 7555 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 7556 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7557 if (disabled) { 7558 ap.accountTypesWithManagementDisabled.add(accountType); 7559 } else { 7560 ap.accountTypesWithManagementDisabled.remove(accountType); 7561 } 7562 saveSettingsLocked(UserHandle.getCallingUserId()); 7563 } 7564 } 7565 7566 @Override 7567 public String[] getAccountTypesWithManagementDisabled() { 7568 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 7569 } 7570 7571 @Override 7572 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 7573 enforceFullCrossUsersPermission(userId); 7574 if (!mHasFeature) { 7575 return null; 7576 } 7577 synchronized (this) { 7578 DevicePolicyData policy = getUserData(userId); 7579 final int N = policy.mAdminList.size(); 7580 ArraySet<String> resultSet = new ArraySet<>(); 7581 for (int i = 0; i < N; i++) { 7582 ActiveAdmin admin = policy.mAdminList.get(i); 7583 resultSet.addAll(admin.accountTypesWithManagementDisabled); 7584 } 7585 return resultSet.toArray(new String[resultSet.size()]); 7586 } 7587 } 7588 7589 @Override 7590 public void setUninstallBlocked(ComponentName who, String packageName, 7591 boolean uninstallBlocked) { 7592 Preconditions.checkNotNull(who, "ComponentName is null"); 7593 final int userId = UserHandle.getCallingUserId(); 7594 synchronized (this) { 7595 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7596 7597 long id = mInjector.binderClearCallingIdentity(); 7598 try { 7599 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 7600 } catch (RemoteException re) { 7601 // Shouldn't happen. 7602 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 7603 } finally { 7604 mInjector.binderRestoreCallingIdentity(id); 7605 } 7606 } 7607 } 7608 7609 @Override 7610 public boolean isUninstallBlocked(ComponentName who, String packageName) { 7611 // This function should return true if and only if the package is blocked by 7612 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 7613 // when the package is a system app, or when it is an active device admin. 7614 final int userId = UserHandle.getCallingUserId(); 7615 7616 synchronized (this) { 7617 if (who != null) { 7618 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7619 } 7620 7621 long id = mInjector.binderClearCallingIdentity(); 7622 try { 7623 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 7624 } catch (RemoteException re) { 7625 // Shouldn't happen. 7626 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 7627 } finally { 7628 mInjector.binderRestoreCallingIdentity(id); 7629 } 7630 } 7631 return false; 7632 } 7633 7634 @Override 7635 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 7636 if (!mHasFeature) { 7637 return; 7638 } 7639 Preconditions.checkNotNull(who, "ComponentName is null"); 7640 synchronized (this) { 7641 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7642 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7643 if (admin.disableCallerId != disabled) { 7644 admin.disableCallerId = disabled; 7645 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 7646 } 7647 } 7648 } 7649 7650 @Override 7651 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 7652 if (!mHasFeature) { 7653 return false; 7654 } 7655 Preconditions.checkNotNull(who, "ComponentName is null"); 7656 synchronized (this) { 7657 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7658 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7659 return admin.disableCallerId; 7660 } 7661 } 7662 7663 @Override 7664 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 7665 enforceCrossUsersPermission(userId); 7666 synchronized (this) { 7667 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7668 return (admin != null) ? admin.disableCallerId : false; 7669 } 7670 } 7671 7672 @Override 7673 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 7674 if (!mHasFeature) { 7675 return; 7676 } 7677 Preconditions.checkNotNull(who, "ComponentName is null"); 7678 synchronized (this) { 7679 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7680 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7681 if (admin.disableContactsSearch != disabled) { 7682 admin.disableContactsSearch = disabled; 7683 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 7684 } 7685 } 7686 } 7687 7688 @Override 7689 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 7690 if (!mHasFeature) { 7691 return false; 7692 } 7693 Preconditions.checkNotNull(who, "ComponentName is null"); 7694 synchronized (this) { 7695 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7696 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7697 return admin.disableContactsSearch; 7698 } 7699 } 7700 7701 @Override 7702 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 7703 enforceCrossUsersPermission(userId); 7704 synchronized (this) { 7705 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7706 return (admin != null) ? admin.disableContactsSearch : false; 7707 } 7708 } 7709 7710 @Override 7711 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 7712 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 7713 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 7714 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 7715 final int callingUserId = UserHandle.getCallingUserId(); 7716 7717 final long ident = mInjector.binderClearCallingIdentity(); 7718 try { 7719 synchronized (this) { 7720 final int managedUserId = getManagedUserId(callingUserId); 7721 if (managedUserId < 0) { 7722 return; 7723 } 7724 if (isCrossProfileQuickContactDisabled(managedUserId)) { 7725 if (VERBOSE_LOG) { 7726 Log.v(LOG_TAG, 7727 "Cross-profile contacts access disabled for user " + managedUserId); 7728 } 7729 return; 7730 } 7731 ContactsInternal.startQuickContactWithErrorToastForUser( 7732 mContext, intent, new UserHandle(managedUserId)); 7733 } 7734 } finally { 7735 mInjector.binderRestoreCallingIdentity(ident); 7736 } 7737 } 7738 7739 /** 7740 * @return true if cross-profile QuickContact is disabled 7741 */ 7742 private boolean isCrossProfileQuickContactDisabled(int userId) { 7743 return getCrossProfileCallerIdDisabledForUser(userId) 7744 && getCrossProfileContactsSearchDisabledForUser(userId); 7745 } 7746 7747 /** 7748 * @return the user ID of the managed user that is linked to the current user, if any. 7749 * Otherwise -1. 7750 */ 7751 public int getManagedUserId(int callingUserId) { 7752 if (VERBOSE_LOG) { 7753 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 7754 } 7755 7756 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 7757 if (ui.id == callingUserId || !ui.isManagedProfile()) { 7758 continue; // Caller user self, or not a managed profile. Skip. 7759 } 7760 if (VERBOSE_LOG) { 7761 Log.v(LOG_TAG, "Managed user=" + ui.id); 7762 } 7763 return ui.id; 7764 } 7765 if (VERBOSE_LOG) { 7766 Log.v(LOG_TAG, "Managed user not found."); 7767 } 7768 return -1; 7769 } 7770 7771 @Override 7772 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 7773 if (!mHasFeature) { 7774 return; 7775 } 7776 Preconditions.checkNotNull(who, "ComponentName is null"); 7777 synchronized (this) { 7778 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7779 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7780 if (admin.disableBluetoothContactSharing != disabled) { 7781 admin.disableBluetoothContactSharing = disabled; 7782 saveSettingsLocked(UserHandle.getCallingUserId()); 7783 } 7784 } 7785 } 7786 7787 @Override 7788 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 7789 if (!mHasFeature) { 7790 return false; 7791 } 7792 Preconditions.checkNotNull(who, "ComponentName is null"); 7793 synchronized (this) { 7794 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7795 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7796 return admin.disableBluetoothContactSharing; 7797 } 7798 } 7799 7800 @Override 7801 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 7802 // TODO: Should there be a check to make sure this relationship is 7803 // within a profile group? 7804 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 7805 synchronized (this) { 7806 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7807 return (admin != null) ? admin.disableBluetoothContactSharing : false; 7808 } 7809 } 7810 7811 /** 7812 * Sets which packages may enter lock task mode. 7813 * 7814 * <p>This function can only be called by the device owner or alternatively by the profile owner 7815 * in case the user is affiliated. 7816 * 7817 * @param packages The list of packages allowed to enter lock task mode. 7818 */ 7819 @Override 7820 public void setLockTaskPackages(ComponentName who, String[] packages) 7821 throws SecurityException { 7822 Preconditions.checkNotNull(who, "ComponentName is null"); 7823 synchronized (this) { 7824 ActiveAdmin deviceOwner = getActiveAdminWithPolicyForUidLocked( 7825 who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, mInjector.binderGetCallingUid()); 7826 ActiveAdmin profileOwner = getActiveAdminWithPolicyForUidLocked( 7827 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()); 7828 if (deviceOwner != null || (profileOwner != null && isAffiliatedUser())) { 7829 int userHandle = mInjector.userHandleGetCallingUserId(); 7830 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 7831 } else { 7832 throw new SecurityException("Admin " + who + 7833 " is neither the device owner or affiliated user's profile owner."); 7834 } 7835 } 7836 } 7837 7838 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 7839 DevicePolicyData policy = getUserData(userHandle); 7840 policy.mLockTaskPackages = packages; 7841 7842 // Store the settings persistently. 7843 saveSettingsLocked(userHandle); 7844 updateLockTaskPackagesLocked(packages, userHandle); 7845 } 7846 7847 /** 7848 * This function returns the list of components allowed to start the task lock mode. 7849 */ 7850 @Override 7851 public String[] getLockTaskPackages(ComponentName who) { 7852 Preconditions.checkNotNull(who, "ComponentName is null"); 7853 synchronized (this) { 7854 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7855 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 7856 final List<String> packages = getLockTaskPackagesLocked(userHandle); 7857 return packages.toArray(new String[packages.size()]); 7858 } 7859 } 7860 7861 private List<String> getLockTaskPackagesLocked(int userHandle) { 7862 final DevicePolicyData policy = getUserData(userHandle); 7863 return policy.mLockTaskPackages; 7864 } 7865 7866 /** 7867 * This function lets the caller know whether the given package is allowed to start the 7868 * lock task mode. 7869 * @param pkg The package to check 7870 */ 7871 @Override 7872 public boolean isLockTaskPermitted(String pkg) { 7873 // Get current user's devicepolicy 7874 int uid = mInjector.binderGetCallingUid(); 7875 int userHandle = UserHandle.getUserId(uid); 7876 DevicePolicyData policy = getUserData(userHandle); 7877 synchronized (this) { 7878 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 7879 String lockTaskPackage = policy.mLockTaskPackages.get(i); 7880 7881 // If the given package equals one of the packages stored our list, 7882 // we allow this package to start lock task mode. 7883 if (lockTaskPackage.equals(pkg)) { 7884 return true; 7885 } 7886 } 7887 } 7888 return false; 7889 } 7890 7891 @Override 7892 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 7893 if (!isCallerWithSystemUid()) { 7894 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 7895 } 7896 synchronized (this) { 7897 final DevicePolicyData policy = getUserData(userHandle); 7898 Bundle adminExtras = new Bundle(); 7899 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 7900 for (ActiveAdmin admin : policy.mAdminList) { 7901 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 7902 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 7903 if (ownsDevice || ownsProfile) { 7904 if (isEnabled) { 7905 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 7906 adminExtras, null); 7907 } else { 7908 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 7909 } 7910 } 7911 } 7912 } 7913 } 7914 7915 @Override 7916 public void setGlobalSetting(ComponentName who, String setting, String value) { 7917 Preconditions.checkNotNull(who, "ComponentName is null"); 7918 7919 synchronized (this) { 7920 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7921 7922 // Some settings are no supported any more. However we do not want to throw a 7923 // SecurityException to avoid breaking apps. 7924 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 7925 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 7926 return; 7927 } 7928 7929 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 7930 throw new SecurityException(String.format( 7931 "Permission denial: device owners cannot update %1$s", setting)); 7932 } 7933 7934 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 7935 // ignore if it contradicts an existing policy 7936 long timeMs = getMaximumTimeToLock( 7937 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 7938 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 7939 return; 7940 } 7941 } 7942 7943 long id = mInjector.binderClearCallingIdentity(); 7944 try { 7945 mInjector.settingsGlobalPutString(setting, value); 7946 } finally { 7947 mInjector.binderRestoreCallingIdentity(id); 7948 } 7949 } 7950 } 7951 7952 @Override 7953 public void setSecureSetting(ComponentName who, String setting, String value) { 7954 Preconditions.checkNotNull(who, "ComponentName is null"); 7955 int callingUserId = mInjector.userHandleGetCallingUserId(); 7956 7957 synchronized (this) { 7958 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7959 7960 if (isDeviceOwner(who, callingUserId)) { 7961 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 7962 throw new SecurityException(String.format( 7963 "Permission denial: Device owners cannot update %1$s", setting)); 7964 } 7965 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 7966 throw new SecurityException(String.format( 7967 "Permission denial: Profile owners cannot update %1$s", setting)); 7968 } 7969 7970 long id = mInjector.binderClearCallingIdentity(); 7971 try { 7972 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 7973 } finally { 7974 mInjector.binderRestoreCallingIdentity(id); 7975 } 7976 } 7977 } 7978 7979 @Override 7980 public void setMasterVolumeMuted(ComponentName who, boolean on) { 7981 Preconditions.checkNotNull(who, "ComponentName is null"); 7982 synchronized (this) { 7983 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7984 setUserRestriction(who, UserManager.DISALLLOW_UNMUTE_DEVICE, on); 7985 } 7986 } 7987 7988 @Override 7989 public boolean isMasterVolumeMuted(ComponentName who) { 7990 Preconditions.checkNotNull(who, "ComponentName is null"); 7991 synchronized (this) { 7992 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7993 7994 AudioManager audioManager = 7995 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 7996 return audioManager.isMasterMute(); 7997 } 7998 } 7999 8000 @Override 8001 public void setUserIcon(ComponentName who, Bitmap icon) { 8002 synchronized (this) { 8003 Preconditions.checkNotNull(who, "ComponentName is null"); 8004 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8005 8006 int userId = UserHandle.getCallingUserId(); 8007 long id = mInjector.binderClearCallingIdentity(); 8008 try { 8009 mUserManagerInternal.setUserIcon(userId, icon); 8010 } finally { 8011 mInjector.binderRestoreCallingIdentity(id); 8012 } 8013 } 8014 } 8015 8016 @Override 8017 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 8018 Preconditions.checkNotNull(who, "ComponentName is null"); 8019 synchronized (this) { 8020 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8021 } 8022 final int userId = UserHandle.getCallingUserId(); 8023 8024 long ident = mInjector.binderClearCallingIdentity(); 8025 try { 8026 // disallow disabling the keyguard if a password is currently set 8027 if (disabled && mLockPatternUtils.isSecure(userId)) { 8028 return false; 8029 } 8030 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 8031 } finally { 8032 mInjector.binderRestoreCallingIdentity(ident); 8033 } 8034 return true; 8035 } 8036 8037 @Override 8038 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 8039 int userId = UserHandle.getCallingUserId(); 8040 synchronized (this) { 8041 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8042 DevicePolicyData policy = getUserData(userId); 8043 if (policy.mStatusBarDisabled != disabled) { 8044 if (!setStatusBarDisabledInternal(disabled, userId)) { 8045 return false; 8046 } 8047 policy.mStatusBarDisabled = disabled; 8048 saveSettingsLocked(userId); 8049 } 8050 } 8051 return true; 8052 } 8053 8054 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 8055 long ident = mInjector.binderClearCallingIdentity(); 8056 try { 8057 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 8058 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 8059 if (statusBarService != null) { 8060 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 8061 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 8062 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 8063 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 8064 return true; 8065 } 8066 } catch (RemoteException e) { 8067 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 8068 } finally { 8069 mInjector.binderRestoreCallingIdentity(ident); 8070 } 8071 return false; 8072 } 8073 8074 /** 8075 * We need to update the internal state of whether a user has completed setup once. After 8076 * that, we ignore any changes that reset the Settings.Secure.USER_SETUP_COMPLETE changes 8077 * as we don't trust any apps that might try to reset it. 8078 * <p> 8079 * Unfortunately, we don't know which user's setup state was changed, so we write all of 8080 * them. 8081 */ 8082 void updateUserSetupComplete() { 8083 List<UserInfo> users = mUserManager.getUsers(true); 8084 final int N = users.size(); 8085 for (int i = 0; i < N; i++) { 8086 int userHandle = users.get(i).id; 8087 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 8088 userHandle) != 0) { 8089 DevicePolicyData policy = getUserData(userHandle); 8090 if (!policy.mUserSetupComplete) { 8091 policy.mUserSetupComplete = true; 8092 synchronized (this) { 8093 saveSettingsLocked(userHandle); 8094 } 8095 } 8096 } 8097 } 8098 } 8099 8100 private class SetupContentObserver extends ContentObserver { 8101 8102 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 8103 Settings.Secure.USER_SETUP_COMPLETE); 8104 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 8105 Settings.Global.DEVICE_PROVISIONED); 8106 8107 public SetupContentObserver(Handler handler) { 8108 super(handler); 8109 } 8110 8111 void register() { 8112 mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 8113 mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 8114 } 8115 8116 @Override 8117 public void onChange(boolean selfChange, Uri uri) { 8118 if (mUserSetupComplete.equals(uri)) { 8119 updateUserSetupComplete(); 8120 } else if (mDeviceProvisioned.equals(uri)) { 8121 synchronized (DevicePolicyManagerService.this) { 8122 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 8123 // is delayed until device is marked as provisioned. 8124 setDeviceOwnerSystemPropertyLocked(); 8125 } 8126 } 8127 } 8128 } 8129 8130 @VisibleForTesting 8131 final class LocalService extends DevicePolicyManagerInternal { 8132 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 8133 8134 @Override 8135 public List<String> getCrossProfileWidgetProviders(int profileId) { 8136 synchronized (DevicePolicyManagerService.this) { 8137 if (mOwners == null) { 8138 return Collections.emptyList(); 8139 } 8140 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 8141 if (ownerComponent == null) { 8142 return Collections.emptyList(); 8143 } 8144 8145 DevicePolicyData policy = getUserDataUnchecked(profileId); 8146 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 8147 8148 if (admin == null || admin.crossProfileWidgetProviders == null 8149 || admin.crossProfileWidgetProviders.isEmpty()) { 8150 return Collections.emptyList(); 8151 } 8152 8153 return admin.crossProfileWidgetProviders; 8154 } 8155 } 8156 8157 @Override 8158 public void addOnCrossProfileWidgetProvidersChangeListener( 8159 OnCrossProfileWidgetProvidersChangeListener listener) { 8160 synchronized (DevicePolicyManagerService.this) { 8161 if (mWidgetProviderListeners == null) { 8162 mWidgetProviderListeners = new ArrayList<>(); 8163 } 8164 if (!mWidgetProviderListeners.contains(listener)) { 8165 mWidgetProviderListeners.add(listener); 8166 } 8167 } 8168 } 8169 8170 @Override 8171 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 8172 synchronized(DevicePolicyManagerService.this) { 8173 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 8174 } 8175 } 8176 8177 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 8178 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 8179 synchronized (DevicePolicyManagerService.this) { 8180 listeners = new ArrayList<>(mWidgetProviderListeners); 8181 } 8182 final int listenerCount = listeners.size(); 8183 for (int i = 0; i < listenerCount; i++) { 8184 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 8185 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 8186 } 8187 } 8188 8189 @Override 8190 public Intent createShowAdminSupportIntent(int userId, boolean useDefaultIfNoAdmin) { 8191 // This method is called from AM with its lock held, so don't take the DPMS lock. 8192 // b/29242568 8193 8194 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 8195 if (profileOwner != null) { 8196 return createShowAdminSupportIntent(profileOwner, userId); 8197 } 8198 8199 final Pair<Integer, ComponentName> deviceOwner = 8200 mOwners.getDeviceOwnerUserIdAndComponent(); 8201 if (deviceOwner != null && deviceOwner.first == userId) { 8202 return createShowAdminSupportIntent(deviceOwner.second, userId); 8203 } 8204 8205 // We're not specifying the device admin because there isn't one. 8206 if (useDefaultIfNoAdmin) { 8207 return createShowAdminSupportIntent(null, userId); 8208 } 8209 return null; 8210 } 8211 8212 @Override 8213 public Intent createUserRestrictionSupportIntent(int userId, String userRestriction) { 8214 int source; 8215 long ident = mInjector.binderClearCallingIdentity(); 8216 try { 8217 source = mUserManager.getUserRestrictionSource(userRestriction, 8218 UserHandle.of(userId)); 8219 } finally { 8220 mInjector.binderRestoreCallingIdentity(ident); 8221 } 8222 if ((source & UserManager.RESTRICTION_SOURCE_SYSTEM) != 0) { 8223 /* 8224 * In this case, the user restriction is enforced by the system. 8225 * So we won't show an admin support intent, even if it is also 8226 * enforced by a profile/device owner. 8227 */ 8228 return null; 8229 } 8230 boolean enforcedByDo = (source & UserManager.RESTRICTION_SOURCE_DEVICE_OWNER) != 0; 8231 boolean enforcedByPo = (source & UserManager.RESTRICTION_SOURCE_PROFILE_OWNER) != 0; 8232 if (enforcedByDo && enforcedByPo) { 8233 // In this case, we'll show an admin support dialog that does not 8234 // specify the admin. 8235 return createShowAdminSupportIntent(null, userId); 8236 } else if (enforcedByPo) { 8237 final ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 8238 if (profileOwner != null) { 8239 return createShowAdminSupportIntent(profileOwner, userId); 8240 } 8241 // This could happen if another thread has changed the profile owner since we called 8242 // getUserRestrictionSource 8243 return null; 8244 } else if (enforcedByDo) { 8245 final Pair<Integer, ComponentName> deviceOwner 8246 = mOwners.getDeviceOwnerUserIdAndComponent(); 8247 if (deviceOwner != null) { 8248 return createShowAdminSupportIntent(deviceOwner.second, deviceOwner.first); 8249 } 8250 // This could happen if another thread has changed the device owner since we called 8251 // getUserRestrictionSource 8252 return null; 8253 } 8254 return null; 8255 } 8256 8257 private Intent createShowAdminSupportIntent(ComponentName admin, int userId) { 8258 // This method is called with AMS lock held, so don't take DPMS lock 8259 final Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS); 8260 intent.putExtra(Intent.EXTRA_USER_ID, userId); 8261 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, admin); 8262 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 8263 return intent; 8264 } 8265 } 8266 8267 /** 8268 * Returns true if specified admin is allowed to limit passwords and has a 8269 * {@code passwordQuality} of at least {@code minPasswordQuality} 8270 */ 8271 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 8272 if (admin.passwordQuality < minPasswordQuality) { 8273 return false; 8274 } 8275 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 8276 } 8277 8278 @Override 8279 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 8280 if (policy != null && !policy.isValid()) { 8281 throw new IllegalArgumentException("Invalid system update policy."); 8282 } 8283 synchronized (this) { 8284 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8285 if (policy == null) { 8286 mOwners.clearSystemUpdatePolicy(); 8287 } else { 8288 mOwners.setSystemUpdatePolicy(policy); 8289 } 8290 mOwners.writeDeviceOwner(); 8291 } 8292 mContext.sendBroadcastAsUser( 8293 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 8294 UserHandle.SYSTEM); 8295 } 8296 8297 @Override 8298 public SystemUpdatePolicy getSystemUpdatePolicy() { 8299 if (UserManager.isDeviceInDemoMode(mContext)) { 8300 // Pretending to have an automatic update policy when the device is in retail demo 8301 // mode. This will allow the device to download and install an ota without 8302 // any user interaction. 8303 return SystemUpdatePolicy.createAutomaticInstallPolicy(); 8304 } 8305 synchronized (this) { 8306 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 8307 if (policy != null && !policy.isValid()) { 8308 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 8309 return null; 8310 } 8311 return policy; 8312 } 8313 } 8314 8315 /** 8316 * Checks if the caller of the method is the device owner app. 8317 * 8318 * @param callerUid UID of the caller. 8319 * @return true if the caller is the device owner app 8320 */ 8321 @VisibleForTesting 8322 boolean isCallerDeviceOwner(int callerUid) { 8323 synchronized (this) { 8324 if (!mOwners.hasDeviceOwner()) { 8325 return false; 8326 } 8327 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 8328 return false; 8329 } 8330 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 8331 .getPackageName(); 8332 final String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 8333 8334 for (String pkg : pkgs) { 8335 if (deviceOwnerPackageName.equals(pkg)) { 8336 return true; 8337 } 8338 } 8339 } 8340 8341 return false; 8342 } 8343 8344 @Override 8345 public void notifyPendingSystemUpdate(long updateReceivedTime) { 8346 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 8347 "Only the system update service can broadcast update information"); 8348 8349 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 8350 Slog.w(LOG_TAG, "Only the system update service in the system user " + 8351 "can broadcast update information."); 8352 return; 8353 } 8354 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 8355 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 8356 updateReceivedTime); 8357 8358 synchronized (this) { 8359 final String deviceOwnerPackage = 8360 mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerComponent().getPackageName() 8361 : null; 8362 if (deviceOwnerPackage == null) { 8363 return; 8364 } 8365 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 8366 8367 ActivityInfo[] receivers = null; 8368 try { 8369 receivers = mContext.getPackageManager().getPackageInfo( 8370 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 8371 } catch (NameNotFoundException e) { 8372 Log.e(LOG_TAG, "Cannot find device owner package", e); 8373 } 8374 if (receivers != null) { 8375 long ident = mInjector.binderClearCallingIdentity(); 8376 try { 8377 for (int i = 0; i < receivers.length; i++) { 8378 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 8379 intent.setComponent(new ComponentName(deviceOwnerPackage, 8380 receivers[i].name)); 8381 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 8382 } 8383 } 8384 } finally { 8385 mInjector.binderRestoreCallingIdentity(ident); 8386 } 8387 } 8388 } 8389 } 8390 8391 @Override 8392 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 8393 int userId = UserHandle.getCallingUserId(); 8394 synchronized (this) { 8395 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8396 DevicePolicyData userPolicy = getUserData(userId); 8397 if (userPolicy.mPermissionPolicy != policy) { 8398 userPolicy.mPermissionPolicy = policy; 8399 saveSettingsLocked(userId); 8400 } 8401 } 8402 } 8403 8404 @Override 8405 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 8406 int userId = UserHandle.getCallingUserId(); 8407 synchronized (this) { 8408 DevicePolicyData userPolicy = getUserData(userId); 8409 return userPolicy.mPermissionPolicy; 8410 } 8411 } 8412 8413 @Override 8414 public boolean setPermissionGrantState(ComponentName admin, String packageName, 8415 String permission, int grantState) throws RemoteException { 8416 UserHandle user = mInjector.binderGetCallingUserHandle(); 8417 synchronized (this) { 8418 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8419 long ident = mInjector.binderClearCallingIdentity(); 8420 try { 8421 if (getTargetSdk(packageName, user.getIdentifier()) 8422 < android.os.Build.VERSION_CODES.M) { 8423 return false; 8424 } 8425 final PackageManager packageManager = mContext.getPackageManager(); 8426 switch (grantState) { 8427 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 8428 packageManager.grantRuntimePermission(packageName, permission, user); 8429 packageManager.updatePermissionFlags(permission, packageName, 8430 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 8431 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 8432 } break; 8433 8434 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 8435 packageManager.revokeRuntimePermission(packageName, 8436 permission, user); 8437 packageManager.updatePermissionFlags(permission, packageName, 8438 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 8439 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 8440 } break; 8441 8442 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 8443 packageManager.updatePermissionFlags(permission, packageName, 8444 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 8445 } break; 8446 } 8447 return true; 8448 } catch (SecurityException se) { 8449 return false; 8450 } finally { 8451 mInjector.binderRestoreCallingIdentity(ident); 8452 } 8453 } 8454 } 8455 8456 @Override 8457 public int getPermissionGrantState(ComponentName admin, String packageName, 8458 String permission) throws RemoteException { 8459 PackageManager packageManager = mContext.getPackageManager(); 8460 8461 UserHandle user = mInjector.binderGetCallingUserHandle(); 8462 synchronized (this) { 8463 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8464 long ident = mInjector.binderClearCallingIdentity(); 8465 try { 8466 int granted = mIPackageManager.checkPermission(permission, 8467 packageName, user.getIdentifier()); 8468 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 8469 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 8470 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 8471 // Not controlled by policy 8472 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 8473 } else { 8474 // Policy controlled so return result based on permission grant state 8475 return granted == PackageManager.PERMISSION_GRANTED 8476 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 8477 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 8478 } 8479 } finally { 8480 mInjector.binderRestoreCallingIdentity(ident); 8481 } 8482 } 8483 } 8484 8485 boolean isPackageInstalledForUser(String packageName, int userHandle) { 8486 try { 8487 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 8488 userHandle); 8489 return (pi != null) && (pi.applicationInfo.flags != 0); 8490 } catch (RemoteException re) { 8491 throw new RuntimeException("Package manager has died", re); 8492 } 8493 } 8494 8495 @Override 8496 public boolean isProvisioningAllowed(String action) { 8497 if (!mHasFeature) { 8498 return false; 8499 } 8500 8501 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8502 if (DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE.equals(action)) { 8503 if (!hasFeatureManagedUsers()) { 8504 return false; 8505 } 8506 synchronized (this) { 8507 if (mOwners.hasDeviceOwner()) { 8508 if (!mInjector.userManagerIsSplitSystemUser()) { 8509 // Only split-system-user systems support managed-profiles in combination with 8510 // device-owner. 8511 return false; 8512 } 8513 if (mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM) { 8514 // Only system device-owner supports managed-profiles. Non-system device-owner 8515 // doesn't. 8516 return false; 8517 } 8518 if (callingUserId == UserHandle.USER_SYSTEM) { 8519 // Managed-profiles cannot be setup on the system user, only regular users. 8520 return false; 8521 } 8522 } 8523 } 8524 if (getProfileOwner(callingUserId) != null) { 8525 // Managed user cannot have a managed profile. 8526 return false; 8527 } 8528 final long ident = mInjector.binderClearCallingIdentity(); 8529 try { 8530 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, true)) { 8531 return false; 8532 } 8533 } finally { 8534 mInjector.binderRestoreCallingIdentity(ident); 8535 } 8536 return true; 8537 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE.equals(action)) { 8538 return isDeviceOwnerProvisioningAllowed(callingUserId); 8539 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_USER.equals(action)) { 8540 if (!hasFeatureManagedUsers()) { 8541 return false; 8542 } 8543 if (!mInjector.userManagerIsSplitSystemUser()) { 8544 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 8545 return false; 8546 } 8547 if (callingUserId == UserHandle.USER_SYSTEM) { 8548 // System user cannot be a managed user. 8549 return false; 8550 } 8551 if (hasUserSetupCompleted(callingUserId)) { 8552 return false; 8553 } 8554 return true; 8555 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE.equals(action)) { 8556 if (!mInjector.userManagerIsSplitSystemUser()) { 8557 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 8558 return false; 8559 } 8560 return isDeviceOwnerProvisioningAllowed(callingUserId); 8561 } 8562 throw new IllegalArgumentException("Unknown provisioning action " + action); 8563 } 8564 8565 /* 8566 * The device owner can only be set before the setup phase of the primary user has completed, 8567 * except for adb command if no accounts or additional users are present on the device. 8568 */ 8569 private synchronized @DeviceOwnerPreConditionCode int checkSetDeviceOwnerPreCondition( 8570 @Nullable ComponentName owner, int deviceOwnerUserId, boolean isAdb) { 8571 if (mOwners.hasDeviceOwner()) { 8572 return CODE_HAS_DEVICE_OWNER; 8573 } 8574 if (mOwners.hasProfileOwner(deviceOwnerUserId)) { 8575 return CODE_USER_HAS_PROFILE_OWNER; 8576 } 8577 if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) { 8578 return CODE_USER_NOT_RUNNING; 8579 } 8580 if (isAdb) { 8581 // if shell command runs after user setup completed check device status. Otherwise, OK. 8582 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 8583 if (!mInjector.userManagerIsSplitSystemUser()) { 8584 if (mUserManager.getUserCount() > 1) { 8585 return CODE_NONSYSTEM_USER_EXISTS; 8586 } 8587 if (hasIncompatibleAccounts(UserHandle.USER_SYSTEM, owner)) { 8588 return CODE_ACCOUNTS_NOT_EMPTY; 8589 } 8590 } else { 8591 // STOPSHIP Do proper check in split user mode 8592 } 8593 } 8594 return CODE_OK; 8595 } else { 8596 if (!mInjector.userManagerIsSplitSystemUser()) { 8597 // In non-split user mode, DO has to be user 0 8598 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) { 8599 return CODE_NOT_SYSTEM_USER; 8600 } 8601 // In non-split user mode, only provision DO before setup wizard completes 8602 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 8603 return CODE_USER_SETUP_COMPLETED; 8604 } 8605 } else { 8606 // STOPSHIP Do proper check in split user mode 8607 } 8608 return CODE_OK; 8609 } 8610 } 8611 8612 private boolean isDeviceOwnerProvisioningAllowed(int deviceOwnerUserId) { 8613 return CODE_OK == checkSetDeviceOwnerPreCondition( 8614 /* owner unknown */ null, deviceOwnerUserId, /* isAdb */ false); 8615 } 8616 8617 private boolean hasFeatureManagedUsers() { 8618 try { 8619 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 8620 } catch (RemoteException e) { 8621 return false; 8622 } 8623 } 8624 8625 @Override 8626 public String getWifiMacAddress(ComponentName admin) { 8627 // Make sure caller has DO. 8628 synchronized (this) { 8629 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8630 } 8631 8632 final long ident = mInjector.binderClearCallingIdentity(); 8633 try { 8634 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 8635 if (wifiInfo == null) { 8636 return null; 8637 } 8638 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 8639 } finally { 8640 mInjector.binderRestoreCallingIdentity(ident); 8641 } 8642 } 8643 8644 /** 8645 * Returns the target sdk version number that the given packageName was built for 8646 * in the given user. 8647 */ 8648 private int getTargetSdk(String packageName, int userId) { 8649 final ApplicationInfo ai; 8650 try { 8651 ai = mIPackageManager.getApplicationInfo(packageName, 0, userId); 8652 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 8653 return targetSdkVersion; 8654 } catch (RemoteException e) { 8655 // Shouldn't happen 8656 return 0; 8657 } 8658 } 8659 8660 @Override 8661 public boolean isManagedProfile(ComponentName admin) { 8662 synchronized (this) { 8663 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8664 } 8665 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8666 final UserInfo user = getUserInfo(callingUserId); 8667 return user != null && user.isManagedProfile(); 8668 } 8669 8670 @Override 8671 public boolean isSystemOnlyUser(ComponentName admin) { 8672 synchronized (this) { 8673 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8674 } 8675 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8676 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 8677 } 8678 8679 @Override 8680 public void reboot(ComponentName admin) { 8681 Preconditions.checkNotNull(admin); 8682 // Make sure caller has DO. 8683 synchronized (this) { 8684 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8685 } 8686 long ident = mInjector.binderClearCallingIdentity(); 8687 try { 8688 // Make sure there are no ongoing calls on the device. 8689 if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { 8690 throw new IllegalStateException("Cannot be called with ongoing call on the device"); 8691 } 8692 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 8693 } finally { 8694 mInjector.binderRestoreCallingIdentity(ident); 8695 } 8696 } 8697 8698 @Override 8699 public void setShortSupportMessage(@NonNull ComponentName who, CharSequence message) { 8700 if (!mHasFeature) { 8701 return; 8702 } 8703 Preconditions.checkNotNull(who, "ComponentName is null"); 8704 final int userHandle = mInjector.userHandleGetCallingUserId(); 8705 synchronized (this) { 8706 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8707 mInjector.binderGetCallingUid()); 8708 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 8709 admin.shortSupportMessage = message; 8710 saveSettingsLocked(userHandle); 8711 } 8712 } 8713 } 8714 8715 @Override 8716 public CharSequence getShortSupportMessage(@NonNull ComponentName who) { 8717 if (!mHasFeature) { 8718 return null; 8719 } 8720 Preconditions.checkNotNull(who, "ComponentName is null"); 8721 synchronized (this) { 8722 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8723 mInjector.binderGetCallingUid()); 8724 return admin.shortSupportMessage; 8725 } 8726 } 8727 8728 @Override 8729 public void setLongSupportMessage(@NonNull ComponentName who, CharSequence message) { 8730 if (!mHasFeature) { 8731 return; 8732 } 8733 Preconditions.checkNotNull(who, "ComponentName is null"); 8734 final int userHandle = mInjector.userHandleGetCallingUserId(); 8735 synchronized (this) { 8736 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8737 mInjector.binderGetCallingUid()); 8738 if (!TextUtils.equals(admin.longSupportMessage, message)) { 8739 admin.longSupportMessage = message; 8740 saveSettingsLocked(userHandle); 8741 } 8742 } 8743 } 8744 8745 @Override 8746 public CharSequence getLongSupportMessage(@NonNull ComponentName who) { 8747 if (!mHasFeature) { 8748 return null; 8749 } 8750 Preconditions.checkNotNull(who, "ComponentName is null"); 8751 synchronized (this) { 8752 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8753 mInjector.binderGetCallingUid()); 8754 return admin.longSupportMessage; 8755 } 8756 } 8757 8758 @Override 8759 public CharSequence getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 8760 if (!mHasFeature) { 8761 return null; 8762 } 8763 Preconditions.checkNotNull(who, "ComponentName is null"); 8764 if (!isCallerWithSystemUid()) { 8765 throw new SecurityException("Only the system can query support message for user"); 8766 } 8767 synchronized (this) { 8768 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8769 if (admin != null) { 8770 return admin.shortSupportMessage; 8771 } 8772 } 8773 return null; 8774 } 8775 8776 @Override 8777 public CharSequence getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 8778 if (!mHasFeature) { 8779 return null; 8780 } 8781 Preconditions.checkNotNull(who, "ComponentName is null"); 8782 if (!isCallerWithSystemUid()) { 8783 throw new SecurityException("Only the system can query support message for user"); 8784 } 8785 synchronized (this) { 8786 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8787 if (admin != null) { 8788 return admin.longSupportMessage; 8789 } 8790 } 8791 return null; 8792 } 8793 8794 @Override 8795 public void setOrganizationColor(@NonNull ComponentName who, int color) { 8796 if (!mHasFeature) { 8797 return; 8798 } 8799 Preconditions.checkNotNull(who, "ComponentName is null"); 8800 final int userHandle = mInjector.userHandleGetCallingUserId(); 8801 enforceManagedProfile(userHandle, "set organization color"); 8802 synchronized (this) { 8803 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8804 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8805 admin.organizationColor = color; 8806 saveSettingsLocked(userHandle); 8807 } 8808 } 8809 8810 @Override 8811 public void setOrganizationColorForUser(int color, int userId) { 8812 if (!mHasFeature) { 8813 return; 8814 } 8815 enforceFullCrossUsersPermission(userId); 8816 enforceManageUsers(); 8817 enforceManagedProfile(userId, "set organization color"); 8818 synchronized (this) { 8819 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8820 admin.organizationColor = color; 8821 saveSettingsLocked(userId); 8822 } 8823 } 8824 8825 @Override 8826 public int getOrganizationColor(@NonNull ComponentName who) { 8827 if (!mHasFeature) { 8828 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 8829 } 8830 Preconditions.checkNotNull(who, "ComponentName is null"); 8831 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 8832 synchronized (this) { 8833 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8834 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8835 return admin.organizationColor; 8836 } 8837 } 8838 8839 @Override 8840 public int getOrganizationColorForUser(int userHandle) { 8841 if (!mHasFeature) { 8842 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 8843 } 8844 enforceFullCrossUsersPermission(userHandle); 8845 enforceManagedProfile(userHandle, "get organization color"); 8846 synchronized (this) { 8847 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 8848 return (profileOwner != null) 8849 ? profileOwner.organizationColor 8850 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 8851 } 8852 } 8853 8854 @Override 8855 public void setOrganizationName(@NonNull ComponentName who, CharSequence text) { 8856 if (!mHasFeature) { 8857 return; 8858 } 8859 Preconditions.checkNotNull(who, "ComponentName is null"); 8860 final int userHandle = mInjector.userHandleGetCallingUserId(); 8861 enforceManagedProfile(userHandle, "set organization name"); 8862 synchronized (this) { 8863 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8864 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8865 if (!TextUtils.equals(admin.organizationName, text)) { 8866 admin.organizationName = (text == null || text.length() == 0) 8867 ? null : text.toString(); 8868 saveSettingsLocked(userHandle); 8869 } 8870 } 8871 } 8872 8873 @Override 8874 public CharSequence getOrganizationName(@NonNull ComponentName who) { 8875 if (!mHasFeature) { 8876 return null; 8877 } 8878 Preconditions.checkNotNull(who, "ComponentName is null"); 8879 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 8880 synchronized(this) { 8881 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8882 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8883 return admin.organizationName; 8884 } 8885 } 8886 8887 @Override 8888 public CharSequence getOrganizationNameForUser(int userHandle) { 8889 if (!mHasFeature) { 8890 return null; 8891 } 8892 enforceFullCrossUsersPermission(userHandle); 8893 enforceManagedProfile(userHandle, "get organization name"); 8894 synchronized (this) { 8895 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 8896 return (profileOwner != null) 8897 ? profileOwner.organizationName 8898 : null; 8899 } 8900 } 8901 8902 @Override 8903 public void setAffiliationIds(ComponentName admin, List<String> ids) { 8904 final Set<String> affiliationIds = new ArraySet<String>(ids); 8905 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8906 8907 synchronized (this) { 8908 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8909 getUserData(callingUserId).mAffiliationIds = affiliationIds; 8910 saveSettingsLocked(callingUserId); 8911 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 8912 // Affiliation ids specified by the device owner are additionally stored in 8913 // UserHandle.USER_SYSTEM's DevicePolicyData. 8914 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 8915 saveSettingsLocked(UserHandle.USER_SYSTEM); 8916 } 8917 } 8918 } 8919 8920 @Override 8921 public boolean isAffiliatedUser() { 8922 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8923 8924 synchronized (this) { 8925 if (mOwners.getDeviceOwnerUserId() == callingUserId) { 8926 // The user that the DO is installed on is always affiliated. 8927 return true; 8928 } 8929 final ComponentName profileOwner = getProfileOwner(callingUserId); 8930 if (profileOwner == null 8931 || !profileOwner.getPackageName().equals(mOwners.getDeviceOwnerPackageName())) { 8932 return false; 8933 } 8934 final Set<String> userAffiliationIds = getUserData(callingUserId).mAffiliationIds; 8935 final Set<String> deviceAffiliationIds = 8936 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 8937 for (String id : userAffiliationIds) { 8938 if (deviceAffiliationIds.contains(id)) { 8939 return true; 8940 } 8941 } 8942 } 8943 return false; 8944 } 8945 8946 private synchronized void disableDeviceOwnerManagedSingleUserFeaturesIfNeeded() { 8947 if (!isDeviceOwnerManagedSingleUserDevice()) { 8948 mInjector.securityLogSetLoggingEnabledProperty(false); 8949 Slog.w(LOG_TAG, "Security logging turned off as it's no longer a single user device."); 8950 setBackupServiceEnabledInternal(false); 8951 Slog.w(LOG_TAG, "Backup is off as it's a managed device that has more that one user."); 8952 } 8953 } 8954 8955 @Override 8956 public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) { 8957 Preconditions.checkNotNull(admin); 8958 ensureDeviceOwnerManagingSingleUser(admin); 8959 8960 synchronized (this) { 8961 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 8962 return; 8963 } 8964 mInjector.securityLogSetLoggingEnabledProperty(enabled); 8965 if (enabled) { 8966 mSecurityLogMonitor.start(); 8967 } else { 8968 mSecurityLogMonitor.stop(); 8969 } 8970 } 8971 } 8972 8973 @Override 8974 public boolean isSecurityLoggingEnabled(ComponentName admin) { 8975 Preconditions.checkNotNull(admin); 8976 synchronized (this) { 8977 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8978 return mInjector.securityLogGetLoggingEnabledProperty(); 8979 } 8980 } 8981 8982 @Override 8983 public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) { 8984 Preconditions.checkNotNull(admin); 8985 ensureDeviceOwnerManagingSingleUser(admin); 8986 8987 if (!mContext.getResources().getBoolean(R.bool.config_supportPreRebootSecurityLogs)) { 8988 return null; 8989 } 8990 8991 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 8992 try { 8993 SecurityLog.readPreviousEvents(output); 8994 return new ParceledListSlice<SecurityEvent>(output); 8995 } catch (IOException e) { 8996 Slog.w(LOG_TAG, "Fail to read previous events" , e); 8997 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 8998 } 8999 } 9000 9001 @Override 9002 public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) { 9003 Preconditions.checkNotNull(admin); 9004 ensureDeviceOwnerManagingSingleUser(admin); 9005 9006 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 9007 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 9008 } 9009 9010 private void enforceCanManageDeviceAdmin() { 9011 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 9012 null); 9013 } 9014 9015 private void enforceCanManageProfileAndDeviceOwners() { 9016 mContext.enforceCallingOrSelfPermission( 9017 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 9018 } 9019 9020 private void enforceCallerSystemUserHandle() { 9021 final int callingUid = mInjector.binderGetCallingUid(); 9022 final int userId = UserHandle.getUserId(callingUid); 9023 if (userId != UserHandle.USER_SYSTEM) { 9024 throw new SecurityException("Caller has to be in user 0"); 9025 } 9026 } 9027 9028 @Override 9029 public boolean isUninstallInQueue(final String packageName) { 9030 enforceCanManageDeviceAdmin(); 9031 final int userId = mInjector.userHandleGetCallingUserId(); 9032 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 9033 synchronized (this) { 9034 return mPackagesToRemove.contains(packageUserPair); 9035 } 9036 } 9037 9038 @Override 9039 public void uninstallPackageWithActiveAdmins(final String packageName) { 9040 enforceCanManageDeviceAdmin(); 9041 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 9042 9043 final int userId = mInjector.userHandleGetCallingUserId(); 9044 9045 enforceUserUnlocked(userId); 9046 9047 final ComponentName profileOwner = getProfileOwner(userId); 9048 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 9049 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 9050 } 9051 9052 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 9053 if (getDeviceOwnerUserId() == userId && deviceOwner != null 9054 && packageName.equals(deviceOwner.getPackageName())) { 9055 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 9056 } 9057 9058 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 9059 synchronized (this) { 9060 mPackagesToRemove.add(packageUserPair); 9061 } 9062 9063 // All active admins on the user. 9064 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 9065 9066 // Active admins in the target package. 9067 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 9068 if (allActiveAdmins != null) { 9069 for (ComponentName activeAdmin : allActiveAdmins) { 9070 if (packageName.equals(activeAdmin.getPackageName())) { 9071 packageActiveAdmins.add(activeAdmin); 9072 removeActiveAdmin(activeAdmin, userId); 9073 } 9074 } 9075 } 9076 if (packageActiveAdmins.size() == 0) { 9077 startUninstallIntent(packageName, userId); 9078 } else { 9079 mHandler.postDelayed(new Runnable() { 9080 @Override 9081 public void run() { 9082 for (ComponentName activeAdmin : packageActiveAdmins) { 9083 removeAdminArtifacts(activeAdmin, userId); 9084 } 9085 startUninstallIntent(packageName, userId); 9086 } 9087 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 9088 } 9089 } 9090 9091 @Override 9092 public boolean isDeviceProvisioned() { 9093 return !TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT)); 9094 } 9095 9096 private void removePackageIfRequired(final String packageName, final int userId) { 9097 if (!packageHasActiveAdmins(packageName, userId)) { 9098 // Will not do anything if uninstall was not requested or was already started. 9099 startUninstallIntent(packageName, userId); 9100 } 9101 } 9102 9103 private void startUninstallIntent(final String packageName, final int userId) { 9104 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 9105 synchronized (this) { 9106 if (!mPackagesToRemove.contains(packageUserPair)) { 9107 // Do nothing if uninstall was not requested or was already started. 9108 return; 9109 } 9110 mPackagesToRemove.remove(packageUserPair); 9111 } 9112 try { 9113 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 9114 // Package does not exist. Nothing to do. 9115 return; 9116 } 9117 } catch (RemoteException re) { 9118 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 9119 } 9120 9121 try { // force stop the package before uninstalling 9122 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 9123 } catch (RemoteException re) { 9124 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 9125 } 9126 final Uri packageURI = Uri.parse("package:" + packageName); 9127 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 9128 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 9129 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 9130 } 9131 9132 /** 9133 * Removes the admin from the policy. Ideally called after the admin's 9134 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 9135 * 9136 * @param adminReceiver The admin to remove 9137 * @param userHandle The user for which this admin has to be removed. 9138 */ 9139 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 9140 synchronized (this) { 9141 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 9142 if (admin == null) { 9143 return; 9144 } 9145 final DevicePolicyData policy = getUserData(userHandle); 9146 final boolean doProxyCleanup = admin.info.usesPolicy( 9147 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 9148 policy.mAdminList.remove(admin); 9149 policy.mAdminMap.remove(adminReceiver); 9150 validatePasswordOwnerLocked(policy); 9151 if (doProxyCleanup) { 9152 resetGlobalProxyLocked(policy); 9153 } 9154 saveSettingsLocked(userHandle); 9155 updateMaximumTimeToLockLocked(userHandle); 9156 policy.mRemovingAdmins.remove(adminReceiver); 9157 9158 Slog.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle); 9159 } 9160 // The removed admin might have disabled camera, so update user 9161 // restrictions. 9162 pushUserRestrictions(userHandle); 9163 } 9164 9165 @Override 9166 public void setDeviceProvisioningConfigApplied() { 9167 enforceManageUsers(); 9168 synchronized (this) { 9169 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 9170 policy.mDeviceProvisioningConfigApplied = true; 9171 saveSettingsLocked(UserHandle.USER_SYSTEM); 9172 } 9173 } 9174 9175 @Override 9176 public boolean isDeviceProvisioningConfigApplied() { 9177 enforceManageUsers(); 9178 synchronized (this) { 9179 final DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 9180 return policy.mDeviceProvisioningConfigApplied; 9181 } 9182 } 9183 9184 /** 9185 * Force update internal persistent state from Settings.Secure.USER_SETUP_COMPLETE. 9186 * 9187 * It's added for testing only. Please use this API carefully if it's used by other system app 9188 * and bare in mind Settings.Secure.USER_SETUP_COMPLETE can be modified by user and other system 9189 * apps. 9190 */ 9191 @Override 9192 public void forceUpdateUserSetupComplete() { 9193 enforceCanManageProfileAndDeviceOwners(); 9194 enforceCallerSystemUserHandle(); 9195 // no effect if it's called from user build 9196 if (!mInjector.isBuildDebuggable()) { 9197 return; 9198 } 9199 final int userId = UserHandle.USER_SYSTEM; 9200 boolean isUserCompleted = mInjector.settingsSecureGetIntForUser( 9201 Settings.Secure.USER_SETUP_COMPLETE, 0, userId) != 0; 9202 DevicePolicyData policy = getUserData(userId); 9203 policy.mUserSetupComplete = isUserCompleted; 9204 synchronized (this) { 9205 saveSettingsLocked(userId); 9206 } 9207 } 9208 9209 @Override 9210 public void setBackupServiceEnabled(ComponentName admin, boolean enabled) { 9211 Preconditions.checkNotNull(admin); 9212 if (!mHasFeature) { 9213 return; 9214 } 9215 ensureDeviceOwnerManagingSingleUser(admin); 9216 setBackupServiceEnabledInternal(enabled); 9217 } 9218 9219 private synchronized void setBackupServiceEnabledInternal(boolean enabled) { 9220 long ident = mInjector.binderClearCallingIdentity(); 9221 try { 9222 IBackupManager ibm = mInjector.getIBackupManager(); 9223 if (ibm != null) { 9224 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, enabled); 9225 } 9226 } catch (RemoteException e) { 9227 throw new IllegalStateException( 9228 "Failed " + (enabled ? "" : "de") + "activating backup service.", e); 9229 } finally { 9230 mInjector.binderRestoreCallingIdentity(ident); 9231 } 9232 } 9233 9234 @Override 9235 public boolean isBackupServiceEnabled(ComponentName admin) { 9236 Preconditions.checkNotNull(admin); 9237 if (!mHasFeature) { 9238 return true; 9239 } 9240 synchronized (this) { 9241 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9242 try { 9243 IBackupManager ibm = mInjector.getIBackupManager(); 9244 return ibm != null && ibm.isBackupServiceActive(UserHandle.USER_SYSTEM); 9245 } catch (RemoteException e) { 9246 throw new IllegalStateException("Failed requesting backup service state.", e); 9247 } 9248 } 9249 } 9250 9251 /** 9252 * Return true if a given user has any accounts that'll prevent installing a device or profile 9253 * owner {@code owner}. 9254 * - If the user has no accounts, then return false. 9255 * - Otherwise, if the owner is unknown (== null), or is not test-only, then return true. 9256 * - Otherwise, if there's any account that does not have ..._ALLOWED, or does have 9257 * ..._DISALLOWED, return true. 9258 * - Otherwise return false. 9259 */ 9260 private boolean hasIncompatibleAccounts(int userId, @Nullable ComponentName owner) { 9261 final long token = mInjector.binderClearCallingIdentity(); 9262 try { 9263 final AccountManager am = AccountManager.get(mContext); 9264 final Account accounts[] = am.getAccountsAsUser(userId); 9265 if (accounts.length == 0) { 9266 return false; 9267 } 9268 final String[] feature_allow = 9269 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_ALLOWED }; 9270 final String[] feature_disallow = 9271 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_DISALLOWED }; 9272 9273 // Even if we find incompatible accounts along the way, we still check all accounts 9274 // for logging. 9275 boolean compatible = true; 9276 for (Account account : accounts) { 9277 if (hasAccountFeatures(am, account, feature_disallow)) { 9278 Log.e(LOG_TAG, account + " has " + feature_disallow[0]); 9279 compatible = false; 9280 } 9281 if (!hasAccountFeatures(am, account, feature_allow)) { 9282 Log.e(LOG_TAG, account + " doesn't have " + feature_allow[0]); 9283 compatible = false; 9284 } 9285 } 9286 if (compatible) { 9287 Log.w(LOG_TAG, "All accounts are compatible"); 9288 } else { 9289 Log.e(LOG_TAG, "Found incompatible accounts"); 9290 } 9291 9292 // Then check if the owner is test-only. 9293 String log; 9294 if (owner == null) { 9295 // Owner is unknown. Suppose it's not test-only 9296 compatible = false; 9297 log = "Only test-only device/profile owner can be installed with accounts"; 9298 } else if (isPackageTestOnly(owner.getPackageName(), userId)) { 9299 if (compatible) { 9300 log = "Installing test-only owner " + owner; 9301 } else { 9302 log = "Can't install test-only owner " + owner + " with incompatible accounts"; 9303 } 9304 } else { 9305 compatible = false; 9306 log = "Can't install non test-only owner " + owner + " with accounts"; 9307 } 9308 if (compatible) { 9309 Log.w(LOG_TAG, log); 9310 } else { 9311 Log.e(LOG_TAG, log); 9312 } 9313 return !compatible; 9314 } finally { 9315 mInjector.binderRestoreCallingIdentity(token); 9316 } 9317 } 9318 9319 private boolean hasAccountFeatures(AccountManager am, Account account, String[] features) { 9320 try { 9321 return am.hasFeatures(account, features, null, null).getResult(); 9322 } catch (Exception e) { 9323 Log.w(LOG_TAG, "Failed to get account feature", e); 9324 return false; 9325 } 9326 } 9327} 9328