DevicePolicyManagerService.java revision 2f26b79eea905f88c872804be01431020e4efb2e
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.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_ENTRY_POINT_ADB; 26import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 27import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 28import static org.xmlpull.v1.XmlPullParser.END_TAG; 29import static org.xmlpull.v1.XmlPullParser.TEXT; 30 31import android.Manifest.permission; 32import android.accessibilityservice.AccessibilityServiceInfo; 33import android.accounts.Account; 34import android.accounts.AccountManager; 35import android.annotation.IntDef; 36import android.annotation.NonNull; 37import android.annotation.Nullable; 38import android.annotation.UserIdInt; 39import android.app.Activity; 40import android.app.ActivityManager; 41import android.app.AlarmManager; 42import android.app.AppGlobals; 43import android.app.IActivityManager; 44import android.app.IApplicationThread; 45import android.app.IServiceConnection; 46import android.app.Notification; 47import android.app.NotificationManager; 48import android.app.PendingIntent; 49import android.app.StatusBarManager; 50import android.app.admin.DeviceAdminInfo; 51import android.app.admin.DeviceAdminReceiver; 52import android.app.admin.DevicePolicyManager; 53import android.app.admin.DevicePolicyManagerInternal; 54import android.app.admin.IDevicePolicyManager; 55import android.app.admin.NetworkEvent; 56import android.app.admin.PasswordMetrics; 57import android.app.admin.SecurityLog; 58import android.app.admin.SecurityLog.SecurityEvent; 59import android.app.admin.SystemUpdatePolicy; 60import android.app.backup.IBackupManager; 61import android.content.BroadcastReceiver; 62import android.content.ComponentName; 63import android.content.Context; 64import android.content.Intent; 65import android.content.IntentFilter; 66import android.content.pm.ActivityInfo; 67import android.content.pm.ApplicationInfo; 68import android.content.pm.IPackageManager; 69import android.content.pm.PackageInfo; 70import android.content.pm.PackageManager; 71import android.content.pm.PackageManager.NameNotFoundException; 72import android.content.pm.PackageManagerInternal; 73import android.content.pm.ParceledListSlice; 74import android.content.pm.ResolveInfo; 75import android.content.pm.ServiceInfo; 76import android.content.pm.UserInfo; 77import android.database.ContentObserver; 78import android.graphics.Bitmap; 79import android.graphics.Color; 80import android.media.AudioManager; 81import android.media.IAudioService; 82import android.net.ConnectivityManager; 83import android.net.IIpConnectivityMetrics; 84import android.net.ProxyInfo; 85import android.net.Uri; 86import android.net.metrics.IpConnectivityLog; 87import android.net.wifi.WifiInfo; 88import android.net.wifi.WifiManager; 89import android.os.AsyncTask; 90import android.os.Binder; 91import android.os.Build; 92import android.os.Bundle; 93import android.os.Environment; 94import android.os.FileUtils; 95import android.os.Handler; 96import android.os.IBinder; 97import android.os.Looper; 98import android.os.ParcelFileDescriptor; 99import android.os.PersistableBundle; 100import android.os.PowerManager; 101import android.os.PowerManagerInternal; 102import android.os.Process; 103import android.os.RecoverySystem; 104import android.os.RemoteCallback; 105import android.os.RemoteException; 106import android.os.ServiceManager; 107import android.os.SystemClock; 108import android.os.SystemProperties; 109import android.os.UserHandle; 110import android.os.UserManager; 111import android.os.UserManagerInternal; 112import android.os.storage.StorageManager; 113import android.provider.ContactsContract.QuickContact; 114import android.provider.ContactsInternal; 115import android.provider.Settings; 116import android.security.Credentials; 117import android.security.IKeyChainAliasCallback; 118import android.security.IKeyChainService; 119import android.security.KeyChain; 120import android.security.KeyChain.KeyChainConnection; 121import android.service.persistentdata.PersistentDataBlockManager; 122import android.telephony.TelephonyManager; 123import android.text.TextUtils; 124import android.util.ArrayMap; 125import android.util.ArraySet; 126import android.util.Log; 127import android.util.Pair; 128import android.util.Slog; 129import android.util.SparseArray; 130import android.util.Xml; 131import android.view.IWindowManager; 132import android.view.accessibility.AccessibilityManager; 133import android.view.accessibility.IAccessibilityManager; 134import android.view.inputmethod.InputMethodInfo; 135import android.view.inputmethod.InputMethodManager; 136 137import com.android.internal.R; 138import com.android.internal.annotations.VisibleForTesting; 139import com.android.internal.logging.MetricsLogger; 140import com.android.internal.statusbar.IStatusBarService; 141import com.android.internal.util.ArrayUtils; 142import com.android.internal.util.FastXmlSerializer; 143import com.android.internal.util.JournaledFile; 144import com.android.internal.util.ParcelableString; 145import com.android.internal.util.Preconditions; 146import com.android.internal.util.XmlUtils; 147import com.android.internal.widget.LockPatternUtils; 148import com.android.server.LocalServices; 149import com.android.server.SystemService; 150import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 151import com.android.server.pm.UserRestrictionsUtils; 152import com.google.android.collect.Sets; 153 154import org.xmlpull.v1.XmlPullParser; 155import org.xmlpull.v1.XmlPullParserException; 156import org.xmlpull.v1.XmlSerializer; 157 158import java.io.ByteArrayInputStream; 159import java.io.File; 160import java.io.FileDescriptor; 161import java.io.FileInputStream; 162import java.io.FileNotFoundException; 163import java.io.FileOutputStream; 164import java.io.IOException; 165import java.io.PrintWriter; 166import java.lang.annotation.Retention; 167import java.lang.annotation.RetentionPolicy; 168import java.nio.charset.StandardCharsets; 169import java.security.cert.CertificateException; 170import java.security.cert.CertificateFactory; 171import java.security.cert.X509Certificate; 172import java.text.DateFormat; 173import java.util.ArrayList; 174import java.util.Arrays; 175import java.util.Collections; 176import java.util.Date; 177import java.util.List; 178import java.util.Map.Entry; 179import java.util.Set; 180import java.util.concurrent.atomic.AtomicBoolean; 181 182/** 183 * Implementation of the device policy APIs. 184 */ 185public class DevicePolicyManagerService extends IDevicePolicyManager.Stub { 186 187 private static final String LOG_TAG = "DevicePolicyManager"; 188 189 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 190 191 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 192 193 private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate"; 194 195 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 196 197 private static final String TAG_STATUS_BAR = "statusbar"; 198 199 private static final String ATTR_DISABLED = "disabled"; 200 201 private static final String ATTR_NAME = "name"; 202 203 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 204 "do-not-ask-credentials-on-boot"; 205 206 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 207 208 private static final String TAG_LAST_SECURITY_LOG_RETRIEVAL = "last-security-log-retrieval"; 209 210 private static final String TAG_LAST_BUG_REPORT_REQUEST = "last-bug-report-request"; 211 212 private static final String TAG_LAST_NETWORK_LOG_RETRIEVAL = "last-network-log-retrieval"; 213 214 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 215 216 private static final String ATTR_VALUE = "value"; 217 218 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 219 220 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 221 222 private static final long MS_PER_DAY = 86400 * 1000; 223 224 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 225 226 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 227 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 228 229 private static final int MONITORING_CERT_NOTIFICATION_ID = R.plurals.ssl_ca_cert_warning; 230 private static final int PROFILE_WIPED_NOTIFICATION_ID = 1001; 231 232 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 233 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 234 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 235 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 236 private static final String ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED = 237 "device-provisioning-config-applied"; 238 private static final String ATTR_DEVICE_PAIRED = "device-paired"; 239 240 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 241 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 242 = "application-restrictions-manager"; 243 244 /** 245 * System property whose value is either "true" or "false", indicating whether 246 * device owner is present. 247 */ 248 private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner"; 249 250 private static final int STATUS_BAR_DISABLE_MASK = 251 StatusBarManager.DISABLE_EXPAND | 252 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 253 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 254 StatusBarManager.DISABLE_SEARCH; 255 256 private static final int STATUS_BAR_DISABLE2_MASK = 257 StatusBarManager.DISABLE2_QUICK_SETTINGS; 258 259 private static final Set<String> SECURE_SETTINGS_WHITELIST; 260 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 261 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 262 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 263 static { 264 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 265 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 266 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 267 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 268 269 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 270 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 271 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 272 273 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 274 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 275 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 276 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 277 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 278 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 279 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 280 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 281 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 282 283 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 284 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 285 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 286 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 287 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 288 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 289 } 290 291 /** 292 * Keyguard features that when set on a managed profile that doesn't have its own challenge will 293 * affect the profile's parent user. These can also be set on the managed profile's parent DPM 294 * instance. 295 */ 296 private static final int PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER = 297 DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS 298 | DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT; 299 300 /** 301 * Keyguard features that when set on a profile affect the profile content or challenge only. 302 * These cannot be set on the managed profile's parent DPM instance 303 */ 304 private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY = 305 DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 306 307 /** Keyguard features that are allowed to be set on a managed profile */ 308 private static final int PROFILE_KEYGUARD_FEATURES = 309 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY; 310 311 private static final int CODE_OK = 0; 312 private static final int CODE_HAS_DEVICE_OWNER = 1; 313 private static final int CODE_USER_HAS_PROFILE_OWNER = 2; 314 private static final int CODE_USER_NOT_RUNNING = 3; 315 private static final int CODE_USER_SETUP_COMPLETED = 4; 316 private static final int CODE_NONSYSTEM_USER_EXISTS = 5; 317 private static final int CODE_ACCOUNTS_NOT_EMPTY = 6; 318 private static final int CODE_NOT_SYSTEM_USER = 7; 319 private static final int CODE_HAS_PAIRED = 8; 320 321 @Retention(RetentionPolicy.SOURCE) 322 @IntDef({ CODE_OK, CODE_HAS_DEVICE_OWNER, CODE_USER_HAS_PROFILE_OWNER, CODE_USER_NOT_RUNNING, 323 CODE_USER_SETUP_COMPLETED, CODE_NOT_SYSTEM_USER }) 324 private @interface DeviceOwnerPreConditionCode {} 325 326 private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000; 327 328 /** 329 * Minimum timeout in milliseconds after which unlocking with weak auth times out, 330 * i.e. the user has to use a strong authentication method like password, PIN or pattern. 331 */ 332 private static final long MINIMUM_STRONG_AUTH_TIMEOUT_MS = 1 * 60 * 60 * 1000; // 1h 333 334 /** 335 * Strings logged with {@link #PROVISIONING_ENTRY_POINT_ADB}. 336 */ 337 private static final String LOG_TAG_PROFILE_OWNER = "profile-owner"; 338 private static final String LOG_TAG_DEVICE_OWNER = "device-owner"; 339 340 final Context mContext; 341 final Injector mInjector; 342 final IPackageManager mIPackageManager; 343 final UserManager mUserManager; 344 final UserManagerInternal mUserManagerInternal; 345 final TelephonyManager mTelephonyManager; 346 private final LockPatternUtils mLockPatternUtils; 347 348 /** 349 * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p 350 * is requested for user u. 351 */ 352 private final Set<Pair<String, Integer>> mPackagesToRemove = 353 new ArraySet<Pair<String, Integer>>(); 354 355 final LocalService mLocalService; 356 357 // Stores and loads state on device and profile owners. 358 @VisibleForTesting 359 final Owners mOwners; 360 361 private final Binder mToken = new Binder(); 362 363 /** 364 * Whether or not device admin feature is supported. If it isn't return defaults for all 365 * public methods. 366 */ 367 boolean mHasFeature; 368 369 /** 370 * Whether or not this device is a watch. 371 */ 372 boolean mIsWatch; 373 374 private final SecurityLogMonitor mSecurityLogMonitor; 375 private NetworkLogger mNetworkLogger; 376 377 private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean(); 378 private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean(); 379 380 private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() { 381 @Override 382 public void run() { 383 if(mRemoteBugreportServiceIsActive.get()) { 384 onBugreportFailed(); 385 } 386 } 387 }; 388 389 private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() { 390 391 @Override 392 public void onReceive(Context context, Intent intent) { 393 if (DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction()) 394 && mRemoteBugreportServiceIsActive.get()) { 395 onBugreportFinished(intent); 396 } 397 } 398 }; 399 400 private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() { 401 402 @Override 403 public void onReceive(Context context, Intent intent) { 404 String action = intent.getAction(); 405 mInjector.getNotificationManager().cancel(LOG_TAG, 406 RemoteBugreportUtils.NOTIFICATION_ID); 407 if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED.equals(action)) { 408 onBugreportSharingAccepted(); 409 } else if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED.equals(action)) { 410 onBugreportSharingDeclined(); 411 } 412 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 413 } 414 }; 415 416 public static final class Lifecycle extends SystemService { 417 private DevicePolicyManagerService mService; 418 419 public Lifecycle(Context context) { 420 super(context); 421 mService = new DevicePolicyManagerService(context); 422 } 423 424 @Override 425 public void onStart() { 426 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 427 } 428 429 @Override 430 public void onBootPhase(int phase) { 431 mService.systemReady(phase); 432 } 433 434 @Override 435 public void onStartUser(int userHandle) { 436 mService.onStartUser(userHandle); 437 } 438 } 439 440 public static class DevicePolicyData { 441 @NonNull PasswordMetrics mActivePasswordMetrics = new PasswordMetrics(); 442 int mFailedPasswordAttempts = 0; 443 444 int mUserHandle; 445 int mPasswordOwner = -1; 446 long mLastMaximumTimeToLock = -1; 447 boolean mUserSetupComplete = false; 448 boolean mPaired = false; 449 int mUserProvisioningState; 450 int mPermissionPolicy; 451 452 boolean mDeviceProvisioningConfigApplied = false; 453 454 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 455 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 456 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 457 458 final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>(); 459 460 // This is the list of component allowed to start lock task mode. 461 List<String> mLockTaskPackages = new ArrayList<>(); 462 463 boolean mStatusBarDisabled = false; 464 465 ComponentName mRestrictionsProvider; 466 467 String mDelegatedCertInstallerPackage; 468 469 boolean doNotAskCredentialsOnBoot = false; 470 471 String mApplicationRestrictionsManagingPackage; 472 473 Set<String> mAffiliationIds = new ArraySet<>(); 474 475 long mLastSecurityLogRetrievalTime = -1; 476 477 long mLastBugReportRequestTime = -1; 478 479 long mLastNetworkLogsRetrievalTime = -1; 480 481 // Used for initialization of users created by createAndManageUsers. 482 boolean mAdminBroadcastPending = false; 483 PersistableBundle mInitBundle = null; 484 485 public DevicePolicyData(int userHandle) { 486 mUserHandle = userHandle; 487 } 488 } 489 490 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 491 492 final Handler mHandler; 493 494 BroadcastReceiver mReceiver = new BroadcastReceiver() { 495 @Override 496 public void onReceive(Context context, Intent intent) { 497 final String action = intent.getAction(); 498 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 499 getSendingUserId()); 500 501 /* 502 * Network logging would ideally be started in setDeviceOwnerSystemPropertyLocked(), 503 * however it's too early in the boot process to register with IIpConnectivityMetrics 504 * to listen for events. 505 */ 506 if (Intent.ACTION_USER_STARTED.equals(action) 507 && userHandle == mOwners.getDeviceOwnerUserId()) { 508 synchronized (DevicePolicyManagerService.this) { 509 if (isNetworkLoggingEnabledInternalLocked()) { 510 setNetworkLoggingActiveInternal(true); 511 } 512 } 513 } 514 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 515 && userHandle == mOwners.getDeviceOwnerUserId() 516 && getDeviceOwnerRemoteBugreportUri() != null) { 517 IntentFilter filterConsent = new IntentFilter(); 518 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 519 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 520 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 521 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 522 RemoteBugreportUtils.NOTIFICATION_ID, 523 RemoteBugreportUtils.buildNotification(mContext, 524 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 525 UserHandle.ALL); 526 } 527 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 528 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 529 if (VERBOSE_LOG) { 530 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 531 + action + " for user " + userHandle); 532 } 533 mHandler.post(new Runnable() { 534 @Override 535 public void run() { 536 handlePasswordExpirationNotification(userHandle); 537 } 538 }); 539 } 540 if (Intent.ACTION_USER_UNLOCKED.equals(action) 541 || Intent.ACTION_USER_STARTED.equals(action) 542 || KeyChain.ACTION_TRUST_STORE_CHANGED.equals(action)) { 543 int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_ALL); 544 new MonitoringCertNotificationTask().execute(userId); 545 } 546 if (Intent.ACTION_USER_ADDED.equals(action)) { 547 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 548 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 549 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 550 removeUserData(userHandle); 551 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 552 synchronized (DevicePolicyManagerService.this) { 553 // Reset the policy data 554 mUserData.remove(userHandle); 555 sendAdminEnabledBroadcastLocked(userHandle); 556 } 557 handlePackagesChanged(null /* check all admins */, userHandle); 558 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 559 handlePackagesChanged(null /* check all admins */, userHandle); 560 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 561 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 562 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 563 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 564 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 565 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 566 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 567 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 568 clearWipeProfileNotification(); 569 } 570 } 571 }; 572 573 static class ActiveAdmin { 574 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 575 private static final String TAG_TEST_ONLY_ADMIN = "test-only-admin"; 576 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 577 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 578 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 579 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 580 = "disable-bt-contacts-sharing"; 581 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 582 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 583 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 584 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 585 private static final String TAG_IS_NETWORK_LOGGING_ENABLED = "is_network_logging_enabled"; 586 private static final String TAG_ACCOUNT_TYPE = "account-type"; 587 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 588 = "permitted-accessiblity-services"; 589 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 590 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 591 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 592 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 593 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 594 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 595 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 596 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 597 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 598 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 599 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 600 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 601 private static final String TAG_STRONG_AUTH_UNLOCK_TIMEOUT = "strong-auth-unlock-timeout"; 602 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 603 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 604 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 605 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 606 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 607 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 608 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 609 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 610 private static final String ATTR_VALUE = "value"; 611 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 612 private static final String TAG_POLICIES = "policies"; 613 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 614 "cross-profile-widget-providers"; 615 private static final String TAG_PROVIDER = "provider"; 616 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 617 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 618 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 619 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 620 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 621 private static final String TAG_PARENT_ADMIN = "parent-admin"; 622 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 623 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 624 625 final DeviceAdminInfo info; 626 627 628 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 629 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 630 631 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 632 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 633 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 634 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 635 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 636 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 637 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 638 @NonNull 639 PasswordMetrics minimumPasswordMetrics = new PasswordMetrics( 640 DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED, DEF_MINIMUM_PASSWORD_LENGTH, 641 DEF_MINIMUM_PASSWORD_LETTERS, DEF_MINIMUM_PASSWORD_UPPER_CASE, 642 DEF_MINIMUM_PASSWORD_LOWER_CASE, DEF_MINIMUM_PASSWORD_NUMERIC, 643 DEF_MINIMUM_PASSWORD_SYMBOLS, DEF_MINIMUM_PASSWORD_NON_LETTER); 644 645 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 646 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 647 648 long strongAuthUnlockTimeout = 0; // admin doesn't participate by default 649 650 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 651 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 652 653 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 654 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 655 656 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 657 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 658 659 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 660 661 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 662 663 boolean encryptionRequested = false; 664 boolean testOnlyAdmin = false; 665 boolean disableCamera = false; 666 boolean disableCallerId = false; 667 boolean disableContactsSearch = false; 668 boolean disableBluetoothContactSharing = true; 669 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 670 boolean requireAutoTime = false; // Can only be set by a device owner. 671 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 672 boolean isNetworkLoggingEnabled = false; // Can only be set by a device owner. 673 674 ActiveAdmin parentAdmin; 675 final boolean isParent; 676 677 static class TrustAgentInfo { 678 public PersistableBundle options; 679 TrustAgentInfo(PersistableBundle bundle) { 680 options = bundle; 681 } 682 } 683 684 Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 685 686 // The list of permitted accessibility services package namesas set by a profile 687 // or device owner. Null means all accessibility services are allowed, empty means 688 // none except system services are allowed. 689 List<String> permittedAccessiblityServices; 690 691 // The list of permitted input methods package names as set by a profile or device owner. 692 // Null means all input methods are allowed, empty means none except system imes are 693 // allowed. 694 List<String> permittedInputMethods; 695 696 // List of package names to keep cached. 697 List<String> keepUninstalledPackages; 698 699 // TODO: review implementation decisions with frameworks team 700 boolean specifiesGlobalProxy = false; 701 String globalProxySpec = null; 702 String globalProxyExclusionList = null; 703 704 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 705 706 List<String> crossProfileWidgetProviders; 707 708 Bundle userRestrictions; 709 710 // Support text provided by the admin to display to the user. 711 CharSequence shortSupportMessage = null; 712 CharSequence longSupportMessage = null; 713 714 // Background color of confirm credentials screen. Default: teal. 715 static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B"); 716 int organizationColor = DEF_ORGANIZATION_COLOR; 717 718 // Default title of confirm credentials screen 719 String organizationName = null; 720 721 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 722 info = _info; 723 isParent = parent; 724 } 725 726 ActiveAdmin getParentActiveAdmin() { 727 Preconditions.checkState(!isParent); 728 729 if (parentAdmin == null) { 730 parentAdmin = new ActiveAdmin(info, /* parent */ true); 731 } 732 return parentAdmin; 733 } 734 735 boolean hasParentActiveAdmin() { 736 return parentAdmin != null; 737 } 738 739 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 740 741 public UserHandle getUserHandle() { 742 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 743 } 744 745 void writeToXml(XmlSerializer out) 746 throws IllegalArgumentException, IllegalStateException, IOException { 747 out.startTag(null, TAG_POLICIES); 748 info.writePoliciesToXml(out); 749 out.endTag(null, TAG_POLICIES); 750 if (minimumPasswordMetrics.quality 751 != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 752 out.startTag(null, TAG_PASSWORD_QUALITY); 753 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.quality)); 754 out.endTag(null, TAG_PASSWORD_QUALITY); 755 if (minimumPasswordMetrics.length != DEF_MINIMUM_PASSWORD_LENGTH) { 756 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 757 out.attribute( 758 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.length)); 759 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 760 } 761 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 762 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 763 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 764 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 765 } 766 if (minimumPasswordMetrics.upperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 767 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 768 out.attribute( 769 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.upperCase)); 770 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 771 } 772 if (minimumPasswordMetrics.lowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 773 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 774 out.attribute( 775 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.lowerCase)); 776 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 777 } 778 if (minimumPasswordMetrics.letters != DEF_MINIMUM_PASSWORD_LETTERS) { 779 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 780 out.attribute( 781 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.letters)); 782 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 783 } 784 if (minimumPasswordMetrics.numeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 785 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 786 out.attribute( 787 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.numeric)); 788 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 789 } 790 if (minimumPasswordMetrics.symbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 791 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 792 out.attribute( 793 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.symbols)); 794 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 795 } 796 if (minimumPasswordMetrics.nonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 797 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 798 out.attribute( 799 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.nonLetter)); 800 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 801 } 802 } 803 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 804 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 805 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 806 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 807 } 808 if (strongAuthUnlockTimeout != DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 809 out.startTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 810 out.attribute(null, ATTR_VALUE, Long.toString(strongAuthUnlockTimeout)); 811 out.endTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 812 } 813 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 814 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 815 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 816 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 817 } 818 if (specifiesGlobalProxy) { 819 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 820 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 821 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 822 if (globalProxySpec != null) { 823 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 824 out.attribute(null, ATTR_VALUE, globalProxySpec); 825 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 826 } 827 if (globalProxyExclusionList != null) { 828 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 829 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 830 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 831 } 832 } 833 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 834 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 835 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 836 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 837 } 838 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 839 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 840 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 841 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 842 } 843 if (encryptionRequested) { 844 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 845 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 846 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 847 } 848 if (testOnlyAdmin) { 849 out.startTag(null, TAG_TEST_ONLY_ADMIN); 850 out.attribute(null, ATTR_VALUE, Boolean.toString(testOnlyAdmin)); 851 out.endTag(null, TAG_TEST_ONLY_ADMIN); 852 } 853 if (disableCamera) { 854 out.startTag(null, TAG_DISABLE_CAMERA); 855 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 856 out.endTag(null, TAG_DISABLE_CAMERA); 857 } 858 if (disableCallerId) { 859 out.startTag(null, TAG_DISABLE_CALLER_ID); 860 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 861 out.endTag(null, TAG_DISABLE_CALLER_ID); 862 } 863 if (disableContactsSearch) { 864 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 865 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 866 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 867 } 868 if (!disableBluetoothContactSharing) { 869 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 870 out.attribute(null, ATTR_VALUE, 871 Boolean.toString(disableBluetoothContactSharing)); 872 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 873 } 874 if (disableScreenCapture) { 875 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 876 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 877 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 878 } 879 if (requireAutoTime) { 880 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 881 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 882 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 883 } 884 if (forceEphemeralUsers) { 885 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 886 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 887 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 888 } 889 if (isNetworkLoggingEnabled) { 890 out.startTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 891 out.attribute(null, ATTR_VALUE, Boolean.toString(isNetworkLoggingEnabled)); 892 out.endTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 893 } 894 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 895 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 896 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 897 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 898 } 899 if (!accountTypesWithManagementDisabled.isEmpty()) { 900 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 901 for (String ac : accountTypesWithManagementDisabled) { 902 out.startTag(null, TAG_ACCOUNT_TYPE); 903 out.attribute(null, ATTR_VALUE, ac); 904 out.endTag(null, TAG_ACCOUNT_TYPE); 905 } 906 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 907 } 908 if (!trustAgentInfos.isEmpty()) { 909 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 910 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 911 for (Entry<String, TrustAgentInfo> entry : set) { 912 TrustAgentInfo trustAgentInfo = entry.getValue(); 913 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 914 out.attribute(null, ATTR_VALUE, entry.getKey()); 915 if (trustAgentInfo.options != null) { 916 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 917 try { 918 trustAgentInfo.options.saveToXml(out); 919 } catch (XmlPullParserException e) { 920 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 921 } 922 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 923 } 924 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 925 } 926 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 927 } 928 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 929 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 930 final int providerCount = crossProfileWidgetProviders.size(); 931 for (int i = 0; i < providerCount; i++) { 932 String provider = crossProfileWidgetProviders.get(i); 933 out.startTag(null, TAG_PROVIDER); 934 out.attribute(null, ATTR_VALUE, provider); 935 out.endTag(null, TAG_PROVIDER); 936 } 937 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 938 } 939 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 940 permittedAccessiblityServices); 941 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 942 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 943 if (hasUserRestrictions()) { 944 UserRestrictionsUtils.writeRestrictions( 945 out, userRestrictions, TAG_USER_RESTRICTIONS); 946 } 947 if (!TextUtils.isEmpty(shortSupportMessage)) { 948 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 949 out.text(shortSupportMessage.toString()); 950 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 951 } 952 if (!TextUtils.isEmpty(longSupportMessage)) { 953 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 954 out.text(longSupportMessage.toString()); 955 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 956 } 957 if (parentAdmin != null) { 958 out.startTag(null, TAG_PARENT_ADMIN); 959 parentAdmin.writeToXml(out); 960 out.endTag(null, TAG_PARENT_ADMIN); 961 } 962 if (organizationColor != DEF_ORGANIZATION_COLOR) { 963 out.startTag(null, TAG_ORGANIZATION_COLOR); 964 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 965 out.endTag(null, TAG_ORGANIZATION_COLOR); 966 } 967 if (organizationName != null) { 968 out.startTag(null, TAG_ORGANIZATION_NAME); 969 out.text(organizationName); 970 out.endTag(null, TAG_ORGANIZATION_NAME); 971 } 972 } 973 974 void writePackageListToXml(XmlSerializer out, String outerTag, 975 List<String> packageList) 976 throws IllegalArgumentException, IllegalStateException, IOException { 977 if (packageList == null) { 978 return; 979 } 980 981 out.startTag(null, outerTag); 982 for (String packageName : packageList) { 983 out.startTag(null, TAG_PACKAGE_LIST_ITEM); 984 out.attribute(null, ATTR_VALUE, packageName); 985 out.endTag(null, TAG_PACKAGE_LIST_ITEM); 986 } 987 out.endTag(null, outerTag); 988 } 989 990 void readFromXml(XmlPullParser parser) 991 throws XmlPullParserException, IOException { 992 int outerDepth = parser.getDepth(); 993 int type; 994 while ((type=parser.next()) != END_DOCUMENT 995 && (type != END_TAG || parser.getDepth() > outerDepth)) { 996 if (type == END_TAG || type == TEXT) { 997 continue; 998 } 999 String tag = parser.getName(); 1000 if (TAG_POLICIES.equals(tag)) { 1001 info.readPoliciesFromXml(parser); 1002 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 1003 minimumPasswordMetrics.quality = Integer.parseInt( 1004 parser.getAttributeValue(null, ATTR_VALUE)); 1005 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 1006 minimumPasswordMetrics.length = Integer.parseInt( 1007 parser.getAttributeValue(null, ATTR_VALUE)); 1008 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 1009 passwordHistoryLength = Integer.parseInt( 1010 parser.getAttributeValue(null, ATTR_VALUE)); 1011 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 1012 minimumPasswordMetrics.upperCase = Integer.parseInt( 1013 parser.getAttributeValue(null, ATTR_VALUE)); 1014 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 1015 minimumPasswordMetrics.lowerCase = Integer.parseInt( 1016 parser.getAttributeValue(null, ATTR_VALUE)); 1017 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 1018 minimumPasswordMetrics.letters = Integer.parseInt( 1019 parser.getAttributeValue(null, ATTR_VALUE)); 1020 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 1021 minimumPasswordMetrics.numeric = Integer.parseInt( 1022 parser.getAttributeValue(null, ATTR_VALUE)); 1023 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 1024 minimumPasswordMetrics.symbols = Integer.parseInt( 1025 parser.getAttributeValue(null, ATTR_VALUE)); 1026 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 1027 minimumPasswordMetrics.nonLetter = Integer.parseInt( 1028 parser.getAttributeValue(null, ATTR_VALUE)); 1029 } else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 1030 maximumTimeToUnlock = Long.parseLong( 1031 parser.getAttributeValue(null, ATTR_VALUE)); 1032 } else if (TAG_STRONG_AUTH_UNLOCK_TIMEOUT.equals(tag)) { 1033 strongAuthUnlockTimeout = Long.parseLong( 1034 parser.getAttributeValue(null, ATTR_VALUE)); 1035 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 1036 maximumFailedPasswordsForWipe = Integer.parseInt( 1037 parser.getAttributeValue(null, ATTR_VALUE)); 1038 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 1039 specifiesGlobalProxy = Boolean.parseBoolean( 1040 parser.getAttributeValue(null, ATTR_VALUE)); 1041 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 1042 globalProxySpec = 1043 parser.getAttributeValue(null, ATTR_VALUE); 1044 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 1045 globalProxyExclusionList = 1046 parser.getAttributeValue(null, ATTR_VALUE); 1047 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 1048 passwordExpirationTimeout = Long.parseLong( 1049 parser.getAttributeValue(null, ATTR_VALUE)); 1050 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 1051 passwordExpirationDate = Long.parseLong( 1052 parser.getAttributeValue(null, ATTR_VALUE)); 1053 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 1054 encryptionRequested = Boolean.parseBoolean( 1055 parser.getAttributeValue(null, ATTR_VALUE)); 1056 } else if (TAG_TEST_ONLY_ADMIN.equals(tag)) { 1057 testOnlyAdmin = Boolean.parseBoolean( 1058 parser.getAttributeValue(null, ATTR_VALUE)); 1059 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 1060 disableCamera = Boolean.parseBoolean( 1061 parser.getAttributeValue(null, ATTR_VALUE)); 1062 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 1063 disableCallerId = Boolean.parseBoolean( 1064 parser.getAttributeValue(null, ATTR_VALUE)); 1065 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 1066 disableContactsSearch = Boolean.parseBoolean( 1067 parser.getAttributeValue(null, ATTR_VALUE)); 1068 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 1069 disableBluetoothContactSharing = Boolean.parseBoolean(parser 1070 .getAttributeValue(null, ATTR_VALUE)); 1071 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 1072 disableScreenCapture = Boolean.parseBoolean( 1073 parser.getAttributeValue(null, ATTR_VALUE)); 1074 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 1075 requireAutoTime = Boolean.parseBoolean( 1076 parser.getAttributeValue(null, ATTR_VALUE)); 1077 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 1078 forceEphemeralUsers = Boolean.parseBoolean( 1079 parser.getAttributeValue(null, ATTR_VALUE)); 1080 } else if (TAG_IS_NETWORK_LOGGING_ENABLED.equals(tag)) { 1081 isNetworkLoggingEnabled = Boolean.parseBoolean( 1082 parser.getAttributeValue(null, ATTR_VALUE)); 1083 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 1084 disabledKeyguardFeatures = Integer.parseInt( 1085 parser.getAttributeValue(null, ATTR_VALUE)); 1086 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 1087 accountTypesWithManagementDisabled = readDisableAccountInfo(parser, tag); 1088 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 1089 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 1090 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 1091 crossProfileWidgetProviders = getCrossProfileWidgetProviders(parser, tag); 1092 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 1093 permittedAccessiblityServices = readPackageList(parser, tag); 1094 } else if (TAG_PERMITTED_IMES.equals(tag)) { 1095 permittedInputMethods = readPackageList(parser, tag); 1096 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 1097 keepUninstalledPackages = readPackageList(parser, tag); 1098 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 1099 UserRestrictionsUtils.readRestrictions(parser, ensureUserRestrictions()); 1100 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 1101 type = parser.next(); 1102 if (type == XmlPullParser.TEXT) { 1103 shortSupportMessage = parser.getText(); 1104 } else { 1105 Log.w(LOG_TAG, "Missing text when loading short support message"); 1106 } 1107 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 1108 type = parser.next(); 1109 if (type == XmlPullParser.TEXT) { 1110 longSupportMessage = parser.getText(); 1111 } else { 1112 Log.w(LOG_TAG, "Missing text when loading long support message"); 1113 } 1114 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1115 Preconditions.checkState(!isParent); 1116 1117 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1118 parentAdmin.readFromXml(parser); 1119 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1120 organizationColor = Integer.parseInt( 1121 parser.getAttributeValue(null, ATTR_VALUE)); 1122 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1123 type = parser.next(); 1124 if (type == XmlPullParser.TEXT) { 1125 organizationName = parser.getText(); 1126 } else { 1127 Log.w(LOG_TAG, "Missing text when loading organization name"); 1128 } 1129 } else { 1130 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1131 XmlUtils.skipCurrentTag(parser); 1132 } 1133 } 1134 } 1135 1136 private List<String> readPackageList(XmlPullParser parser, 1137 String tag) throws XmlPullParserException, IOException { 1138 List<String> result = new ArrayList<String>(); 1139 int outerDepth = parser.getDepth(); 1140 int outerType; 1141 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1142 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1143 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1144 continue; 1145 } 1146 String outerTag = parser.getName(); 1147 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1148 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1149 if (packageName != null) { 1150 result.add(packageName); 1151 } else { 1152 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1153 } 1154 } else { 1155 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1156 } 1157 } 1158 return result; 1159 } 1160 1161 private Set<String> readDisableAccountInfo(XmlPullParser parser, String tag) 1162 throws XmlPullParserException, IOException { 1163 int outerDepthDAM = parser.getDepth(); 1164 int typeDAM; 1165 Set<String> result = new ArraySet<>(); 1166 while ((typeDAM=parser.next()) != END_DOCUMENT 1167 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1168 if (typeDAM == END_TAG || typeDAM == TEXT) { 1169 continue; 1170 } 1171 String tagDAM = parser.getName(); 1172 if (TAG_ACCOUNT_TYPE.equals(tagDAM)) { 1173 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1174 } else { 1175 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1176 } 1177 } 1178 return result; 1179 } 1180 1181 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1182 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1183 int outerDepthDAM = parser.getDepth(); 1184 int typeDAM; 1185 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1186 while ((typeDAM=parser.next()) != END_DOCUMENT 1187 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1188 if (typeDAM == END_TAG || typeDAM == TEXT) { 1189 continue; 1190 } 1191 String tagDAM = parser.getName(); 1192 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1193 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1194 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1195 result.put(component, trustAgentInfo); 1196 } else { 1197 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1198 } 1199 } 1200 return result; 1201 } 1202 1203 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1204 throws XmlPullParserException, IOException { 1205 int outerDepthDAM = parser.getDepth(); 1206 int typeDAM; 1207 TrustAgentInfo result = new TrustAgentInfo(null); 1208 while ((typeDAM=parser.next()) != END_DOCUMENT 1209 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1210 if (typeDAM == END_TAG || typeDAM == TEXT) { 1211 continue; 1212 } 1213 String tagDAM = parser.getName(); 1214 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 1215 result.options = PersistableBundle.restoreFromXml(parser); 1216 } else { 1217 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1218 } 1219 } 1220 return result; 1221 } 1222 1223 private List<String> getCrossProfileWidgetProviders(XmlPullParser parser, String tag) 1224 throws XmlPullParserException, IOException { 1225 int outerDepthDAM = parser.getDepth(); 1226 int typeDAM; 1227 ArrayList<String> result = null; 1228 while ((typeDAM=parser.next()) != END_DOCUMENT 1229 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1230 if (typeDAM == END_TAG || typeDAM == TEXT) { 1231 continue; 1232 } 1233 String tagDAM = parser.getName(); 1234 if (TAG_PROVIDER.equals(tagDAM)) { 1235 final String provider = parser.getAttributeValue(null, ATTR_VALUE); 1236 if (result == null) { 1237 result = new ArrayList<>(); 1238 } 1239 result.add(provider); 1240 } else { 1241 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1242 } 1243 } 1244 return result; 1245 } 1246 1247 boolean hasUserRestrictions() { 1248 return userRestrictions != null && userRestrictions.size() > 0; 1249 } 1250 1251 Bundle ensureUserRestrictions() { 1252 if (userRestrictions == null) { 1253 userRestrictions = new Bundle(); 1254 } 1255 return userRestrictions; 1256 } 1257 1258 void dump(String prefix, PrintWriter pw) { 1259 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1260 pw.print(prefix); pw.print("testOnlyAdmin="); 1261 pw.println(testOnlyAdmin); 1262 pw.print(prefix); pw.println("policies:"); 1263 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1264 if (pols != null) { 1265 for (int i=0; i<pols.size(); i++) { 1266 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1267 } 1268 } 1269 pw.print(prefix); pw.print("passwordQuality=0x"); 1270 pw.println(Integer.toHexString(minimumPasswordMetrics.quality)); 1271 pw.print(prefix); pw.print("minimumPasswordLength="); 1272 pw.println(minimumPasswordMetrics.length); 1273 pw.print(prefix); pw.print("passwordHistoryLength="); 1274 pw.println(passwordHistoryLength); 1275 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1276 pw.println(minimumPasswordMetrics.upperCase); 1277 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1278 pw.println(minimumPasswordMetrics.lowerCase); 1279 pw.print(prefix); pw.print("minimumPasswordLetters="); 1280 pw.println(minimumPasswordMetrics.letters); 1281 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1282 pw.println(minimumPasswordMetrics.numeric); 1283 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1284 pw.println(minimumPasswordMetrics.symbols); 1285 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1286 pw.println(minimumPasswordMetrics.nonLetter); 1287 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1288 pw.println(maximumTimeToUnlock); 1289 pw.print(prefix); pw.print("strongAuthUnlockTimeout="); 1290 pw.println(strongAuthUnlockTimeout); 1291 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1292 pw.println(maximumFailedPasswordsForWipe); 1293 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1294 pw.println(specifiesGlobalProxy); 1295 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1296 pw.println(passwordExpirationTimeout); 1297 pw.print(prefix); pw.print("passwordExpirationDate="); 1298 pw.println(passwordExpirationDate); 1299 if (globalProxySpec != null) { 1300 pw.print(prefix); pw.print("globalProxySpec="); 1301 pw.println(globalProxySpec); 1302 } 1303 if (globalProxyExclusionList != null) { 1304 pw.print(prefix); pw.print("globalProxyEclusionList="); 1305 pw.println(globalProxyExclusionList); 1306 } 1307 pw.print(prefix); pw.print("encryptionRequested="); 1308 pw.println(encryptionRequested); 1309 pw.print(prefix); pw.print("disableCamera="); 1310 pw.println(disableCamera); 1311 pw.print(prefix); pw.print("disableCallerId="); 1312 pw.println(disableCallerId); 1313 pw.print(prefix); pw.print("disableContactsSearch="); 1314 pw.println(disableContactsSearch); 1315 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1316 pw.println(disableBluetoothContactSharing); 1317 pw.print(prefix); pw.print("disableScreenCapture="); 1318 pw.println(disableScreenCapture); 1319 pw.print(prefix); pw.print("requireAutoTime="); 1320 pw.println(requireAutoTime); 1321 pw.print(prefix); pw.print("forceEphemeralUsers="); 1322 pw.println(forceEphemeralUsers); 1323 pw.print(prefix); pw.print("isNetworkLoggingEnabled="); 1324 pw.println(isNetworkLoggingEnabled); 1325 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1326 pw.println(disabledKeyguardFeatures); 1327 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1328 pw.println(crossProfileWidgetProviders); 1329 if (permittedAccessiblityServices != null) { 1330 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1331 pw.println(permittedAccessiblityServices); 1332 } 1333 if (permittedInputMethods != null) { 1334 pw.print(prefix); pw.print("permittedInputMethods="); 1335 pw.println(permittedInputMethods); 1336 } 1337 if (keepUninstalledPackages != null) { 1338 pw.print(prefix); pw.print("keepUninstalledPackages="); 1339 pw.println(keepUninstalledPackages); 1340 } 1341 pw.print(prefix); pw.print("organizationColor="); 1342 pw.println(organizationColor); 1343 if (organizationName != null) { 1344 pw.print(prefix); pw.print("organizationName="); 1345 pw.println(organizationName); 1346 } 1347 pw.print(prefix); pw.println("userRestrictions:"); 1348 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1349 pw.print(prefix); pw.print("isParent="); 1350 pw.println(isParent); 1351 if (parentAdmin != null) { 1352 pw.print(prefix); pw.println("parentAdmin:"); 1353 parentAdmin.dump(prefix + " ", pw); 1354 } 1355 } 1356 } 1357 1358 private void handlePackagesChanged(String packageName, int userHandle) { 1359 boolean removed = false; 1360 if (VERBOSE_LOG) Slog.d(LOG_TAG, "Handling package changes for user " + userHandle); 1361 DevicePolicyData policy = getUserData(userHandle); 1362 synchronized (this) { 1363 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1364 ActiveAdmin aa = policy.mAdminList.get(i); 1365 try { 1366 // If we're checking all packages or if the specific one we're checking matches, 1367 // then check if the package and receiver still exist. 1368 final String adminPackage = aa.info.getPackageName(); 1369 if (packageName == null || packageName.equals(adminPackage)) { 1370 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1371 || mIPackageManager.getReceiverInfo(aa.info.getComponent(), 1372 PackageManager.MATCH_DIRECT_BOOT_AWARE 1373 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 1374 userHandle) == null) { 1375 removed = true; 1376 policy.mAdminList.remove(i); 1377 policy.mAdminMap.remove(aa.info.getComponent()); 1378 } 1379 } 1380 } catch (RemoteException re) { 1381 // Shouldn't happen 1382 } 1383 } 1384 if (removed) { 1385 validatePasswordOwnerLocked(policy); 1386 saveSettingsLocked(policy.mUserHandle); 1387 } 1388 1389 // Check if delegated cert installer or app restrictions managing packages are removed. 1390 if (isRemovedPackage(packageName, policy.mDelegatedCertInstallerPackage, userHandle)) { 1391 policy.mDelegatedCertInstallerPackage = null; 1392 saveSettingsLocked(policy.mUserHandle); 1393 } 1394 if (isRemovedPackage( 1395 packageName, policy.mApplicationRestrictionsManagingPackage, userHandle)) { 1396 policy.mApplicationRestrictionsManagingPackage = null; 1397 saveSettingsLocked(policy.mUserHandle); 1398 } 1399 } 1400 if (removed) { 1401 // The removed admin might have disabled camera, so update user restrictions. 1402 pushUserRestrictions(userHandle); 1403 } 1404 } 1405 1406 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1407 try { 1408 return targetPackage != null 1409 && (changedPackage == null || changedPackage.equals(targetPackage)) 1410 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1411 } catch (RemoteException e) { 1412 // Shouldn't happen 1413 } 1414 1415 return false; 1416 } 1417 1418 /** 1419 * Unit test will subclass it to inject mocks. 1420 */ 1421 @VisibleForTesting 1422 static class Injector { 1423 1424 private final Context mContext; 1425 1426 Injector(Context context) { 1427 mContext = context; 1428 } 1429 1430 Owners newOwners() { 1431 return new Owners(getUserManager(), getUserManagerInternal(), 1432 getPackageManagerInternal()); 1433 } 1434 1435 UserManager getUserManager() { 1436 return UserManager.get(mContext); 1437 } 1438 1439 UserManagerInternal getUserManagerInternal() { 1440 return LocalServices.getService(UserManagerInternal.class); 1441 } 1442 1443 PackageManagerInternal getPackageManagerInternal() { 1444 return LocalServices.getService(PackageManagerInternal.class); 1445 } 1446 1447 NotificationManager getNotificationManager() { 1448 return mContext.getSystemService(NotificationManager.class); 1449 } 1450 1451 IIpConnectivityMetrics getIIpConnectivityMetrics() { 1452 return (IIpConnectivityMetrics) IIpConnectivityMetrics.Stub.asInterface( 1453 ServiceManager.getService(IpConnectivityLog.SERVICE_NAME)); 1454 } 1455 1456 PackageManager getPackageManager() { 1457 return mContext.getPackageManager(); 1458 } 1459 1460 PowerManagerInternal getPowerManagerInternal() { 1461 return LocalServices.getService(PowerManagerInternal.class); 1462 } 1463 1464 TelephonyManager getTelephonyManager() { 1465 return TelephonyManager.from(mContext); 1466 } 1467 1468 IWindowManager getIWindowManager() { 1469 return IWindowManager.Stub 1470 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1471 } 1472 1473 IActivityManager getIActivityManager() { 1474 return ActivityManager.getService(); 1475 } 1476 1477 IPackageManager getIPackageManager() { 1478 return AppGlobals.getPackageManager(); 1479 } 1480 1481 IBackupManager getIBackupManager() { 1482 return IBackupManager.Stub.asInterface( 1483 ServiceManager.getService(Context.BACKUP_SERVICE)); 1484 } 1485 1486 IAudioService getIAudioService() { 1487 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1488 } 1489 1490 boolean isBuildDebuggable() { 1491 return Build.IS_DEBUGGABLE; 1492 } 1493 1494 LockPatternUtils newLockPatternUtils() { 1495 return new LockPatternUtils(mContext); 1496 } 1497 1498 boolean storageManagerIsFileBasedEncryptionEnabled() { 1499 return StorageManager.isFileEncryptedNativeOnly(); 1500 } 1501 1502 boolean storageManagerIsNonDefaultBlockEncrypted() { 1503 long identity = Binder.clearCallingIdentity(); 1504 try { 1505 return StorageManager.isNonDefaultBlockEncrypted(); 1506 } finally { 1507 Binder.restoreCallingIdentity(identity); 1508 } 1509 } 1510 1511 boolean storageManagerIsEncrypted() { 1512 return StorageManager.isEncrypted(); 1513 } 1514 1515 boolean storageManagerIsEncryptable() { 1516 return StorageManager.isEncryptable(); 1517 } 1518 1519 Looper getMyLooper() { 1520 return Looper.myLooper(); 1521 } 1522 1523 WifiManager getWifiManager() { 1524 return mContext.getSystemService(WifiManager.class); 1525 } 1526 1527 long binderClearCallingIdentity() { 1528 return Binder.clearCallingIdentity(); 1529 } 1530 1531 void binderRestoreCallingIdentity(long token) { 1532 Binder.restoreCallingIdentity(token); 1533 } 1534 1535 int binderGetCallingUid() { 1536 return Binder.getCallingUid(); 1537 } 1538 1539 int binderGetCallingPid() { 1540 return Binder.getCallingPid(); 1541 } 1542 1543 UserHandle binderGetCallingUserHandle() { 1544 return Binder.getCallingUserHandle(); 1545 } 1546 1547 boolean binderIsCallingUidMyUid() { 1548 return getCallingUid() == Process.myUid(); 1549 } 1550 1551 final int userHandleGetCallingUserId() { 1552 return UserHandle.getUserId(binderGetCallingUid()); 1553 } 1554 1555 File environmentGetUserSystemDirectory(int userId) { 1556 return Environment.getUserSystemDirectory(userId); 1557 } 1558 1559 void powerManagerGoToSleep(long time, int reason, int flags) { 1560 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1561 } 1562 1563 void powerManagerReboot(String reason) { 1564 mContext.getSystemService(PowerManager.class).reboot(reason); 1565 } 1566 1567 boolean systemPropertiesGetBoolean(String key, boolean def) { 1568 return SystemProperties.getBoolean(key, def); 1569 } 1570 1571 long systemPropertiesGetLong(String key, long def) { 1572 return SystemProperties.getLong(key, def); 1573 } 1574 1575 String systemPropertiesGet(String key, String def) { 1576 return SystemProperties.get(key, def); 1577 } 1578 1579 String systemPropertiesGet(String key) { 1580 return SystemProperties.get(key); 1581 } 1582 1583 void systemPropertiesSet(String key, String value) { 1584 SystemProperties.set(key, value); 1585 } 1586 1587 boolean userManagerIsSplitSystemUser() { 1588 return UserManager.isSplitSystemUser(); 1589 } 1590 1591 String getDevicePolicyFilePathForSystemUser() { 1592 return "/data/system/"; 1593 } 1594 1595 void registerContentObserver(Uri uri, boolean notifyForDescendents, 1596 ContentObserver observer, int userHandle) { 1597 mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents, 1598 observer, userHandle); 1599 } 1600 1601 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 1602 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 1603 name, def, userHandle); 1604 } 1605 1606 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 1607 Settings.Secure.putIntForUser(mContext.getContentResolver(), 1608 name, value, userHandle); 1609 } 1610 1611 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 1612 Settings.Secure.putStringForUser(mContext.getContentResolver(), 1613 name, value, userHandle); 1614 } 1615 1616 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 1617 Settings.Global.putStringForUser(mContext.getContentResolver(), 1618 name, value, userHandle); 1619 } 1620 1621 void settingsSecurePutInt(String name, int value) { 1622 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 1623 } 1624 1625 int settingsGlobalGetInt(String name, int def) { 1626 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 1627 } 1628 1629 void settingsGlobalPutInt(String name, int value) { 1630 Settings.Global.putInt(mContext.getContentResolver(), name, value); 1631 } 1632 1633 void settingsSecurePutString(String name, String value) { 1634 Settings.Secure.putString(mContext.getContentResolver(), name, value); 1635 } 1636 1637 void settingsGlobalPutString(String name, String value) { 1638 Settings.Global.putString(mContext.getContentResolver(), name, value); 1639 } 1640 1641 void securityLogSetLoggingEnabledProperty(boolean enabled) { 1642 SecurityLog.setLoggingEnabledProperty(enabled); 1643 } 1644 1645 boolean securityLogGetLoggingEnabledProperty() { 1646 return SecurityLog.getLoggingEnabledProperty(); 1647 } 1648 1649 boolean securityLogIsLoggingEnabled() { 1650 return SecurityLog.isLoggingEnabled(); 1651 } 1652 } 1653 1654 /** 1655 * Instantiates the service. 1656 */ 1657 public DevicePolicyManagerService(Context context) { 1658 this(new Injector(context)); 1659 } 1660 1661 @VisibleForTesting 1662 DevicePolicyManagerService(Injector injector) { 1663 mInjector = injector; 1664 mContext = Preconditions.checkNotNull(injector.mContext); 1665 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 1666 mOwners = Preconditions.checkNotNull(injector.newOwners()); 1667 1668 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 1669 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 1670 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 1671 mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager()); 1672 1673 mLocalService = new LocalService(); 1674 mLockPatternUtils = injector.newLockPatternUtils(); 1675 1676 mSecurityLogMonitor = new SecurityLogMonitor(this); 1677 1678 mHasFeature = mContext.getPackageManager() 1679 .hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1680 mIsWatch = mContext.getPackageManager() 1681 .hasSystemFeature(PackageManager.FEATURE_WATCH); 1682 if (!mHasFeature) { 1683 // Skip the rest of the initialization 1684 return; 1685 } 1686 IntentFilter filter = new IntentFilter(); 1687 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 1688 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 1689 filter.addAction(Intent.ACTION_USER_ADDED); 1690 filter.addAction(Intent.ACTION_USER_REMOVED); 1691 filter.addAction(Intent.ACTION_USER_STARTED); 1692 filter.addAction(Intent.ACTION_USER_UNLOCKED); 1693 filter.addAction(KeyChain.ACTION_TRUST_STORE_CHANGED); 1694 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 1695 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1696 filter = new IntentFilter(); 1697 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 1698 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 1699 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 1700 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 1701 filter.addDataScheme("package"); 1702 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1703 filter = new IntentFilter(); 1704 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 1705 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 1706 1707 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 1708 } 1709 1710 /** 1711 * Creates and loads the policy data from xml. 1712 * @param userHandle the user for whom to load the policy data 1713 * @return 1714 */ 1715 @NonNull 1716 DevicePolicyData getUserData(int userHandle) { 1717 synchronized (this) { 1718 DevicePolicyData policy = mUserData.get(userHandle); 1719 if (policy == null) { 1720 policy = new DevicePolicyData(userHandle); 1721 mUserData.append(userHandle, policy); 1722 loadSettingsLocked(policy, userHandle); 1723 } 1724 return policy; 1725 } 1726 } 1727 1728 /** 1729 * Creates and loads the policy data from xml for data that is shared between 1730 * various profiles of a user. In contrast to {@link #getUserData(int)} 1731 * it allows access to data of users other than the calling user. 1732 * 1733 * This function should only be used for shared data, e.g. everything regarding 1734 * passwords and should be removed once multiple screen locks are present. 1735 * @param userHandle the user for whom to load the policy data 1736 * @return 1737 */ 1738 DevicePolicyData getUserDataUnchecked(int userHandle) { 1739 long ident = mInjector.binderClearCallingIdentity(); 1740 try { 1741 return getUserData(userHandle); 1742 } finally { 1743 mInjector.binderRestoreCallingIdentity(ident); 1744 } 1745 } 1746 1747 void removeUserData(int userHandle) { 1748 synchronized (this) { 1749 if (userHandle == UserHandle.USER_SYSTEM) { 1750 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 1751 return; 1752 } 1753 mOwners.removeProfileOwner(userHandle); 1754 mOwners.writeProfileOwner(userHandle); 1755 1756 DevicePolicyData policy = mUserData.get(userHandle); 1757 if (policy != null) { 1758 mUserData.remove(userHandle); 1759 } 1760 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 1761 DEVICE_POLICIES_XML); 1762 policyFile.delete(); 1763 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 1764 } 1765 updateScreenCaptureDisabledInWindowManager(userHandle, false /* default value */); 1766 } 1767 1768 void loadOwners() { 1769 synchronized (this) { 1770 mOwners.load(); 1771 setDeviceOwnerSystemPropertyLocked(); 1772 findOwnerComponentIfNecessaryLocked(); 1773 migrateUserRestrictionsIfNecessaryLocked(); 1774 1775 // TODO PO may not have a class name either due to b/17652534. Address that too. 1776 1777 updateDeviceOwnerLocked(); 1778 } 1779 } 1780 1781 private void setDeviceOwnerSystemPropertyLocked() { 1782 // Device owner may still be provisioned, do not set the read-only system property yet. 1783 if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) == 0) { 1784 return; 1785 } 1786 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 1787 // always false at this point. 1788 if (StorageManager.inCryptKeeperBounce()) { 1789 return; 1790 } 1791 1792 if (!TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT))) { 1793 Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 1794 } else { 1795 if (mOwners.hasDeviceOwner()) { 1796 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "true"); 1797 Slog.i(LOG_TAG, "Set ro.device_owner property to true"); 1798 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 1799 if (mInjector.securityLogGetLoggingEnabledProperty()) { 1800 mSecurityLogMonitor.start(); 1801 } 1802 } else { 1803 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, "false"); 1804 Slog.i(LOG_TAG, "Set ro.device_owner property to false"); 1805 } 1806 } 1807 } 1808 1809 private void findOwnerComponentIfNecessaryLocked() { 1810 if (!mOwners.hasDeviceOwner()) { 1811 return; 1812 } 1813 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 1814 1815 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 1816 return; // Already a full component name. 1817 } 1818 1819 final ComponentName doComponent = findAdminComponentWithPackageLocked( 1820 doComponentName.getPackageName(), 1821 mOwners.getDeviceOwnerUserId()); 1822 if (doComponent == null) { 1823 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 1824 } else { 1825 mOwners.setDeviceOwnerWithRestrictionsMigrated( 1826 doComponent, 1827 mOwners.getDeviceOwnerName(), 1828 mOwners.getDeviceOwnerUserId(), 1829 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 1830 mOwners.writeDeviceOwner(); 1831 if (VERBOSE_LOG) { 1832 Log.v(LOG_TAG, "Device owner component filled in"); 1833 } 1834 } 1835 } 1836 1837 /** 1838 * We didn't use to persist user restrictions for each owners but only persisted in user 1839 * manager. 1840 */ 1841 private void migrateUserRestrictionsIfNecessaryLocked() { 1842 boolean migrated = false; 1843 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 1844 // except for the "system controlled" ones. 1845 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 1846 if (VERBOSE_LOG) { 1847 Log.v(LOG_TAG, "Migrating DO user restrictions"); 1848 } 1849 migrated = true; 1850 1851 // Migrate user 0 restrictions to DO. 1852 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 1853 1854 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 1855 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 1856 1857 // Push DO user restrictions to user manager. 1858 pushUserRestrictions(UserHandle.USER_SYSTEM); 1859 1860 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 1861 } 1862 1863 // Migrate for POs. 1864 1865 // The following restrictions can be set on secondary users by the device owner, so we 1866 // assume they're not from the PO. 1867 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 1868 UserManager.DISALLOW_OUTGOING_CALLS, 1869 UserManager.DISALLOW_SMS); 1870 1871 for (UserInfo ui : mUserManager.getUsers()) { 1872 final int userId = ui.id; 1873 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 1874 if (VERBOSE_LOG) { 1875 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 1876 } 1877 migrated = true; 1878 1879 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 1880 1881 final Set<String> exceptionList = 1882 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 1883 1884 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 1885 exceptionList, /* isDeviceOwner =*/ false); 1886 1887 // Note if a secondary user has no PO but has a DA that disables camera, we 1888 // don't get here and won't push the camera user restriction to UserManager 1889 // here. That's okay because we'll push user restrictions anyway when a user 1890 // starts. But we still do it because we want to let user manager persist 1891 // upon migration. 1892 pushUserRestrictions(userId); 1893 1894 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 1895 } 1896 } 1897 if (VERBOSE_LOG && migrated) { 1898 Log.v(LOG_TAG, "User restrictions migrated."); 1899 } 1900 } 1901 1902 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 1903 Set<String> exceptionList, boolean isDeviceOwner) { 1904 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 1905 user.getIdentifier()); 1906 1907 final Bundle newBaseRestrictions = new Bundle(); 1908 final Bundle newOwnerRestrictions = new Bundle(); 1909 1910 for (String key : origRestrictions.keySet()) { 1911 if (!origRestrictions.getBoolean(key)) { 1912 continue; 1913 } 1914 final boolean canOwnerChange = isDeviceOwner 1915 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 1916 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 1917 1918 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 1919 newBaseRestrictions.putBoolean(key, true); 1920 } else { 1921 newOwnerRestrictions.putBoolean(key, true); 1922 } 1923 } 1924 1925 if (VERBOSE_LOG) { 1926 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 1927 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 1928 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 1929 } 1930 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 1931 newBaseRestrictions); 1932 1933 if (admin != null) { 1934 admin.ensureUserRestrictions().clear(); 1935 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 1936 } else { 1937 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 1938 } 1939 saveSettingsLocked(user.getIdentifier()); 1940 } 1941 1942 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 1943 final DevicePolicyData policy = getUserData(userId); 1944 final int n = policy.mAdminList.size(); 1945 ComponentName found = null; 1946 int nFound = 0; 1947 for (int i = 0; i < n; i++) { 1948 final ActiveAdmin admin = policy.mAdminList.get(i); 1949 if (packageName.equals(admin.info.getPackageName())) { 1950 // Found! 1951 if (nFound == 0) { 1952 found = admin.info.getComponent(); 1953 } 1954 nFound++; 1955 } 1956 } 1957 if (nFound > 1) { 1958 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 1959 } 1960 return found; 1961 } 1962 1963 /** 1964 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 1965 * reminders. Clears alarm if no expirations are configured. 1966 */ 1967 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 1968 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 1969 final long now = System.currentTimeMillis(); 1970 final long timeToExpire = expiration - now; 1971 final long alarmTime; 1972 if (expiration == 0) { 1973 // No expirations are currently configured: Cancel alarm. 1974 alarmTime = 0; 1975 } else if (timeToExpire <= 0) { 1976 // The password has already expired: Repeat every 24 hours. 1977 alarmTime = now + MS_PER_DAY; 1978 } else { 1979 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 1980 // the expiration time. 1981 long alarmInterval = timeToExpire % MS_PER_DAY; 1982 if (alarmInterval == 0) { 1983 alarmInterval = MS_PER_DAY; 1984 } 1985 alarmTime = now + alarmInterval; 1986 } 1987 1988 long token = mInjector.binderClearCallingIdentity(); 1989 try { 1990 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 1991 AlarmManager am = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 1992 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 1993 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 1994 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 1995 UserHandle.of(affectedUserHandle)); 1996 am.cancel(pi); 1997 if (alarmTime != 0) { 1998 am.set(AlarmManager.RTC, alarmTime, pi); 1999 } 2000 } finally { 2001 mInjector.binderRestoreCallingIdentity(token); 2002 } 2003 } 2004 2005 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 2006 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 2007 if (admin != null 2008 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 2009 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 2010 return admin; 2011 } 2012 return null; 2013 } 2014 2015 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 2016 if (parent) { 2017 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 2018 } 2019 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2020 if (admin != null && parent) { 2021 admin = admin.getParentActiveAdmin(); 2022 } 2023 return admin; 2024 } 2025 2026 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 2027 throws SecurityException { 2028 final int callingUid = mInjector.binderGetCallingUid(); 2029 2030 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 2031 if (result != null) { 2032 return result; 2033 } 2034 2035 if (who != null) { 2036 final int userId = UserHandle.getUserId(callingUid); 2037 final DevicePolicyData policy = getUserData(userId); 2038 ActiveAdmin admin = policy.mAdminMap.get(who); 2039 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2040 throw new SecurityException("Admin " + admin.info.getComponent() 2041 + " does not own the device"); 2042 } 2043 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2044 throw new SecurityException("Admin " + admin.info.getComponent() 2045 + " does not own the profile"); 2046 } 2047 throw new SecurityException("Admin " + admin.info.getComponent() 2048 + " did not specify uses-policy for: " 2049 + admin.info.getTagForPolicy(reqPolicy)); 2050 } else { 2051 throw new SecurityException("No active admin owned by uid " 2052 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 2053 } 2054 } 2055 2056 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 2057 throws SecurityException { 2058 if (parent) { 2059 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 2060 "call APIs on the parent profile"); 2061 } 2062 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 2063 return parent ? admin.getParentActiveAdmin() : admin; 2064 } 2065 /** 2066 * Find the admin for the component and userId bit of the uid, then check 2067 * the admin's uid matches the uid. 2068 */ 2069 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 2070 final int userId = UserHandle.getUserId(uid); 2071 final DevicePolicyData policy = getUserData(userId); 2072 ActiveAdmin admin = policy.mAdminMap.get(who); 2073 if (admin == null) { 2074 throw new SecurityException("No active admin " + who); 2075 } 2076 if (admin.getUid() != uid) { 2077 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2078 } 2079 return admin; 2080 } 2081 2082 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 2083 int uid) { 2084 // Try to find an admin which can use reqPolicy 2085 final int userId = UserHandle.getUserId(uid); 2086 final DevicePolicyData policy = getUserData(userId); 2087 if (who != null) { 2088 ActiveAdmin admin = policy.mAdminMap.get(who); 2089 if (admin == null) { 2090 throw new SecurityException("No active admin " + who); 2091 } 2092 if (admin.getUid() != uid) { 2093 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2094 } 2095 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 2096 return admin; 2097 } 2098 } else { 2099 for (ActiveAdmin admin : policy.mAdminList) { 2100 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 2101 userId)) { 2102 return admin; 2103 } 2104 } 2105 } 2106 2107 return null; 2108 } 2109 2110 @VisibleForTesting 2111 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 2112 int userId) { 2113 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 2114 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 2115 2116 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2117 return ownsDevice; 2118 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2119 // DO always has the PO power. 2120 return ownsDevice || ownsProfile; 2121 } else { 2122 return admin.info.usesPolicy(reqPolicy); 2123 } 2124 } 2125 2126 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 2127 sendAdminCommandLocked(admin, action, null); 2128 } 2129 2130 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 2131 sendAdminCommandLocked(admin, action, null, result); 2132 } 2133 2134 /** 2135 * Send an update to one specific admin, get notified when that admin returns a result. 2136 */ 2137 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2138 BroadcastReceiver result) { 2139 Intent intent = new Intent(action); 2140 intent.setComponent(admin.info.getComponent()); 2141 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 2142 intent.putExtra("expiration", admin.passwordExpirationDate); 2143 } 2144 if (adminExtras != null) { 2145 intent.putExtras(adminExtras); 2146 } 2147 if (result != null) { 2148 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 2149 null, result, mHandler, Activity.RESULT_OK, null, null); 2150 } else { 2151 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 2152 } 2153 } 2154 2155 /** 2156 * Send an update to all admins of a user that enforce a specified policy. 2157 */ 2158 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle) { 2159 final DevicePolicyData policy = getUserData(userHandle); 2160 final int count = policy.mAdminList.size(); 2161 if (count > 0) { 2162 for (int i = 0; i < count; i++) { 2163 final ActiveAdmin admin = policy.mAdminList.get(i); 2164 if (admin.info.usesPolicy(reqPolicy)) { 2165 sendAdminCommandLocked(admin, action); 2166 } 2167 } 2168 } 2169 } 2170 2171 /** 2172 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2173 * enforce a specified policy. 2174 */ 2175 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2176 int userHandle) { 2177 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 2178 for (int profileId : profileIds) { 2179 sendAdminCommandLocked(action, reqPolicy, profileId); 2180 } 2181 } 2182 2183 /** 2184 * Sends a broadcast to each profile that share the password unlock with the given user id. 2185 */ 2186 private void sendAdminCommandForLockscreenPoliciesLocked( 2187 String action, int reqPolicy, int userHandle) { 2188 if (isSeparateProfileChallengeEnabled(userHandle)) { 2189 sendAdminCommandLocked(action, reqPolicy, userHandle); 2190 } else { 2191 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle); 2192 } 2193 } 2194 2195 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2196 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2197 DevicePolicyData policy = getUserData(userHandle); 2198 if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) { 2199 policy.mRemovingAdmins.add(adminReceiver); 2200 sendAdminCommandLocked(admin, 2201 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2202 new BroadcastReceiver() { 2203 @Override 2204 public void onReceive(Context context, Intent intent) { 2205 removeAdminArtifacts(adminReceiver, userHandle); 2206 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2207 } 2208 }); 2209 } 2210 } 2211 2212 2213 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2214 boolean throwForMissiongPermission) { 2215 if (!mHasFeature) { 2216 return null; 2217 } 2218 enforceFullCrossUsersPermission(userHandle); 2219 ActivityInfo ai = null; 2220 try { 2221 ai = mIPackageManager.getReceiverInfo(adminName, 2222 PackageManager.GET_META_DATA | 2223 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS | 2224 PackageManager.MATCH_DIRECT_BOOT_AWARE | 2225 PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle); 2226 } catch (RemoteException e) { 2227 // shouldn't happen. 2228 } 2229 if (ai == null) { 2230 throw new IllegalArgumentException("Unknown admin: " + adminName); 2231 } 2232 2233 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2234 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2235 + permission.BIND_DEVICE_ADMIN; 2236 Slog.w(LOG_TAG, message); 2237 if (throwForMissiongPermission && 2238 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2239 throw new IllegalArgumentException(message); 2240 } 2241 } 2242 2243 try { 2244 return new DeviceAdminInfo(mContext, ai); 2245 } catch (XmlPullParserException | IOException e) { 2246 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2247 e); 2248 return null; 2249 } 2250 } 2251 2252 private JournaledFile makeJournaledFile(int userHandle) { 2253 final String base = userHandle == UserHandle.USER_SYSTEM 2254 ? mInjector.getDevicePolicyFilePathForSystemUser() + DEVICE_POLICIES_XML 2255 : new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2256 DEVICE_POLICIES_XML).getAbsolutePath(); 2257 if (VERBOSE_LOG) { 2258 Log.v(LOG_TAG, "Opening " + base); 2259 } 2260 return new JournaledFile(new File(base), new File(base + ".tmp")); 2261 } 2262 2263 private void saveSettingsLocked(int userHandle) { 2264 DevicePolicyData policy = getUserData(userHandle); 2265 JournaledFile journal = makeJournaledFile(userHandle); 2266 FileOutputStream stream = null; 2267 try { 2268 stream = new FileOutputStream(journal.chooseForWrite(), false); 2269 XmlSerializer out = new FastXmlSerializer(); 2270 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2271 out.startDocument(null, true); 2272 2273 out.startTag(null, "policies"); 2274 if (policy.mRestrictionsProvider != null) { 2275 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2276 policy.mRestrictionsProvider.flattenToString()); 2277 } 2278 if (policy.mUserSetupComplete) { 2279 out.attribute(null, ATTR_SETUP_COMPLETE, 2280 Boolean.toString(true)); 2281 } 2282 if (policy.mPaired) { 2283 out.attribute(null, ATTR_DEVICE_PAIRED, 2284 Boolean.toString(true)); 2285 } 2286 if (policy.mDeviceProvisioningConfigApplied) { 2287 out.attribute(null, ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED, 2288 Boolean.toString(true)); 2289 } 2290 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2291 out.attribute(null, ATTR_PROVISIONING_STATE, 2292 Integer.toString(policy.mUserProvisioningState)); 2293 } 2294 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2295 out.attribute(null, ATTR_PERMISSION_POLICY, 2296 Integer.toString(policy.mPermissionPolicy)); 2297 } 2298 if (policy.mDelegatedCertInstallerPackage != null) { 2299 out.attribute(null, ATTR_DELEGATED_CERT_INSTALLER, 2300 policy.mDelegatedCertInstallerPackage); 2301 } 2302 if (policy.mApplicationRestrictionsManagingPackage != null) { 2303 out.attribute(null, ATTR_APPLICATION_RESTRICTIONS_MANAGER, 2304 policy.mApplicationRestrictionsManagingPackage); 2305 } 2306 2307 final int N = policy.mAdminList.size(); 2308 for (int i=0; i<N; i++) { 2309 ActiveAdmin ap = policy.mAdminList.get(i); 2310 if (ap != null) { 2311 out.startTag(null, "admin"); 2312 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2313 ap.writeToXml(out); 2314 out.endTag(null, "admin"); 2315 } 2316 } 2317 2318 if (policy.mPasswordOwner >= 0) { 2319 out.startTag(null, "password-owner"); 2320 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2321 out.endTag(null, "password-owner"); 2322 } 2323 2324 if (policy.mFailedPasswordAttempts != 0) { 2325 out.startTag(null, "failed-password-attempts"); 2326 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2327 out.endTag(null, "failed-password-attempts"); 2328 } 2329 2330 final PasswordMetrics metrics = policy.mActivePasswordMetrics; 2331 if (!metrics.isDefault()) { 2332 out.startTag(null, "active-password"); 2333 out.attribute(null, "quality", Integer.toString(metrics.quality)); 2334 out.attribute(null, "length", Integer.toString(metrics.length)); 2335 out.attribute(null, "uppercase", Integer.toString(metrics.upperCase)); 2336 out.attribute(null, "lowercase", Integer.toString(metrics.lowerCase)); 2337 out.attribute(null, "letters", Integer.toString(metrics.letters)); 2338 out.attribute(null, "numeric", Integer.toString(metrics.numeric)); 2339 out.attribute(null, "symbols", Integer.toString(metrics.symbols)); 2340 out.attribute(null, "nonletter", Integer.toString(metrics.nonLetter)); 2341 out.endTag(null, "active-password"); 2342 } 2343 2344 for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) { 2345 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2346 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i)); 2347 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2348 } 2349 2350 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2351 String component = policy.mLockTaskPackages.get(i); 2352 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2353 out.attribute(null, "name", component); 2354 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2355 } 2356 2357 if (policy.mStatusBarDisabled) { 2358 out.startTag(null, TAG_STATUS_BAR); 2359 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2360 out.endTag(null, TAG_STATUS_BAR); 2361 } 2362 2363 if (policy.doNotAskCredentialsOnBoot) { 2364 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2365 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2366 } 2367 2368 for (String id : policy.mAffiliationIds) { 2369 out.startTag(null, TAG_AFFILIATION_ID); 2370 out.attribute(null, "id", id); 2371 out.endTag(null, TAG_AFFILIATION_ID); 2372 } 2373 2374 if (policy.mLastSecurityLogRetrievalTime >= 0) { 2375 out.startTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2376 out.attribute(null, ATTR_VALUE, 2377 Long.toString(policy.mLastSecurityLogRetrievalTime)); 2378 out.endTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2379 } 2380 2381 if (policy.mLastBugReportRequestTime >= 0) { 2382 out.startTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2383 out.attribute(null, ATTR_VALUE, 2384 Long.toString(policy.mLastBugReportRequestTime)); 2385 out.endTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2386 } 2387 2388 if (policy.mLastNetworkLogsRetrievalTime >= 0) { 2389 out.startTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2390 out.attribute(null, ATTR_VALUE, 2391 Long.toString(policy.mLastNetworkLogsRetrievalTime)); 2392 out.endTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2393 } 2394 2395 if (policy.mAdminBroadcastPending) { 2396 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2397 out.attribute(null, ATTR_VALUE, 2398 Boolean.toString(policy.mAdminBroadcastPending)); 2399 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2400 } 2401 2402 if (policy.mInitBundle != null) { 2403 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 2404 policy.mInitBundle.saveToXml(out); 2405 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 2406 } 2407 2408 out.endTag(null, "policies"); 2409 2410 out.endDocument(); 2411 stream.flush(); 2412 FileUtils.sync(stream); 2413 stream.close(); 2414 journal.commit(); 2415 sendChangedNotification(userHandle); 2416 } catch (XmlPullParserException | IOException e) { 2417 Slog.w(LOG_TAG, "failed writing file", e); 2418 try { 2419 if (stream != null) { 2420 stream.close(); 2421 } 2422 } catch (IOException ex) { 2423 // Ignore 2424 } 2425 journal.rollback(); 2426 } 2427 } 2428 2429 private void sendChangedNotification(int userHandle) { 2430 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 2431 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 2432 long ident = mInjector.binderClearCallingIdentity(); 2433 try { 2434 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 2435 } finally { 2436 mInjector.binderRestoreCallingIdentity(ident); 2437 } 2438 } 2439 2440 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 2441 JournaledFile journal = makeJournaledFile(userHandle); 2442 FileInputStream stream = null; 2443 File file = journal.chooseForRead(); 2444 try { 2445 stream = new FileInputStream(file); 2446 XmlPullParser parser = Xml.newPullParser(); 2447 parser.setInput(stream, StandardCharsets.UTF_8.name()); 2448 2449 int type; 2450 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2451 && type != XmlPullParser.START_TAG) { 2452 } 2453 String tag = parser.getName(); 2454 if (!"policies".equals(tag)) { 2455 throw new XmlPullParserException( 2456 "Settings do not start with policies tag: found " + tag); 2457 } 2458 2459 // Extract the permission provider component name if available 2460 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 2461 if (permissionProvider != null) { 2462 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 2463 } 2464 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 2465 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 2466 policy.mUserSetupComplete = true; 2467 } 2468 String paired = parser.getAttributeValue(null, ATTR_DEVICE_PAIRED); 2469 if (paired != null && Boolean.toString(true).equals(paired)) { 2470 policy.mPaired = true; 2471 } 2472 String deviceProvisioningConfigApplied = parser.getAttributeValue(null, 2473 ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED); 2474 if (deviceProvisioningConfigApplied != null 2475 && Boolean.toString(true).equals(deviceProvisioningConfigApplied)) { 2476 policy.mDeviceProvisioningConfigApplied = true; 2477 } 2478 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 2479 if (!TextUtils.isEmpty(provisioningState)) { 2480 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 2481 } 2482 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 2483 if (!TextUtils.isEmpty(permissionPolicy)) { 2484 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 2485 } 2486 policy.mDelegatedCertInstallerPackage = parser.getAttributeValue(null, 2487 ATTR_DELEGATED_CERT_INSTALLER); 2488 policy.mApplicationRestrictionsManagingPackage = parser.getAttributeValue(null, 2489 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 2490 2491 type = parser.next(); 2492 int outerDepth = parser.getDepth(); 2493 policy.mLockTaskPackages.clear(); 2494 policy.mAdminList.clear(); 2495 policy.mAdminMap.clear(); 2496 policy.mAffiliationIds.clear(); 2497 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 2498 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 2499 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 2500 continue; 2501 } 2502 tag = parser.getName(); 2503 if ("admin".equals(tag)) { 2504 String name = parser.getAttributeValue(null, "name"); 2505 try { 2506 DeviceAdminInfo dai = findAdmin( 2507 ComponentName.unflattenFromString(name), userHandle, 2508 /* throwForMissionPermission= */ false); 2509 if (VERBOSE_LOG 2510 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 2511 != userHandle)) { 2512 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 2513 + dai.getActivityInfo().applicationInfo.uid + " for user " 2514 + userHandle); 2515 } 2516 if (dai != null) { 2517 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 2518 ap.readFromXml(parser); 2519 policy.mAdminMap.put(ap.info.getComponent(), ap); 2520 } 2521 } catch (RuntimeException e) { 2522 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 2523 } 2524 } else if ("failed-password-attempts".equals(tag)) { 2525 policy.mFailedPasswordAttempts = Integer.parseInt( 2526 parser.getAttributeValue(null, "value")); 2527 } else if ("password-owner".equals(tag)) { 2528 policy.mPasswordOwner = Integer.parseInt( 2529 parser.getAttributeValue(null, "value")); 2530 } else if ("active-password".equals(tag)) { 2531 final PasswordMetrics m = policy.mActivePasswordMetrics; 2532 m.quality = Integer.parseInt(parser.getAttributeValue(null, "quality")); 2533 m.length = Integer.parseInt(parser.getAttributeValue(null, "length")); 2534 m.upperCase = Integer.parseInt(parser.getAttributeValue(null, "uppercase")); 2535 m.lowerCase = Integer.parseInt(parser.getAttributeValue(null, "lowercase")); 2536 m.letters = Integer.parseInt(parser.getAttributeValue(null, "letters")); 2537 m.numeric = Integer.parseInt(parser.getAttributeValue(null, "numeric")); 2538 m.symbols = Integer.parseInt(parser.getAttributeValue(null, "symbols")); 2539 m.nonLetter = Integer.parseInt(parser.getAttributeValue(null, "nonletter")); 2540 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) { 2541 policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME)); 2542 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 2543 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 2544 } else if (TAG_STATUS_BAR.equals(tag)) { 2545 policy.mStatusBarDisabled = Boolean.parseBoolean( 2546 parser.getAttributeValue(null, ATTR_DISABLED)); 2547 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 2548 policy.doNotAskCredentialsOnBoot = true; 2549 } else if (TAG_AFFILIATION_ID.equals(tag)) { 2550 policy.mAffiliationIds.add(parser.getAttributeValue(null, "id")); 2551 } else if (TAG_LAST_SECURITY_LOG_RETRIEVAL.equals(tag)) { 2552 policy.mLastSecurityLogRetrievalTime = Long.parseLong( 2553 parser.getAttributeValue(null, ATTR_VALUE)); 2554 } else if (TAG_LAST_BUG_REPORT_REQUEST.equals(tag)) { 2555 policy.mLastBugReportRequestTime = Long.parseLong( 2556 parser.getAttributeValue(null, ATTR_VALUE)); 2557 } else if (TAG_LAST_NETWORK_LOG_RETRIEVAL.equals(tag)) { 2558 policy.mLastNetworkLogsRetrievalTime = Long.parseLong( 2559 parser.getAttributeValue(null, ATTR_VALUE)); 2560 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 2561 String pending = parser.getAttributeValue(null, ATTR_VALUE); 2562 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 2563 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 2564 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 2565 } else { 2566 Slog.w(LOG_TAG, "Unknown tag: " + tag); 2567 XmlUtils.skipCurrentTag(parser); 2568 } 2569 } 2570 } catch (FileNotFoundException e) { 2571 // Don't be noisy, this is normal if we haven't defined any policies. 2572 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 2573 | IndexOutOfBoundsException e) { 2574 Slog.w(LOG_TAG, "failed parsing " + file, e); 2575 } 2576 try { 2577 if (stream != null) { 2578 stream.close(); 2579 } 2580 } catch (IOException e) { 2581 // Ignore 2582 } 2583 2584 // Generate a list of admins from the admin map 2585 policy.mAdminList.addAll(policy.mAdminMap.values()); 2586 2587 // Validate that what we stored for the password quality matches 2588 // sufficiently what is currently set. Note that this is only 2589 // a sanity check in case the two get out of sync; this should 2590 // never normally happen. 2591 final long identity = mInjector.binderClearCallingIdentity(); 2592 try { 2593 int actualPasswordQuality = mLockPatternUtils.getActivePasswordQuality(userHandle); 2594 if (actualPasswordQuality < policy.mActivePasswordMetrics.quality) { 2595 Slog.w(LOG_TAG, "Active password quality 0x" 2596 + Integer.toHexString(policy.mActivePasswordMetrics.quality) 2597 + " does not match actual quality 0x" 2598 + Integer.toHexString(actualPasswordQuality)); 2599 policy.mActivePasswordMetrics = new PasswordMetrics(); 2600 } 2601 } finally { 2602 mInjector.binderRestoreCallingIdentity(identity); 2603 } 2604 2605 validatePasswordOwnerLocked(policy); 2606 updateMaximumTimeToLockLocked(userHandle); 2607 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 2608 if (policy.mStatusBarDisabled) { 2609 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 2610 } 2611 } 2612 2613 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 2614 long ident = mInjector.binderClearCallingIdentity(); 2615 try { 2616 mInjector.getIActivityManager() 2617 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 2618 } catch (RemoteException e) { 2619 // Not gonna happen. 2620 } finally { 2621 mInjector.binderRestoreCallingIdentity(ident); 2622 } 2623 } 2624 2625 private void updateDeviceOwnerLocked() { 2626 long ident = mInjector.binderClearCallingIdentity(); 2627 try { 2628 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 2629 // user id and also protect all other DAs too. 2630 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 2631 if (deviceOwnerComponent != null) { 2632 mInjector.getIActivityManager() 2633 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 2634 } 2635 } catch (RemoteException e) { 2636 // Not gonna happen. 2637 } finally { 2638 mInjector.binderRestoreCallingIdentity(ident); 2639 } 2640 } 2641 2642 static void validateQualityConstant(int quality) { 2643 switch (quality) { 2644 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 2645 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 2646 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 2647 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 2648 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 2649 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 2650 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 2651 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 2652 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 2653 return; 2654 } 2655 throw new IllegalArgumentException("Invalid quality constant: 0x" 2656 + Integer.toHexString(quality)); 2657 } 2658 2659 void validatePasswordOwnerLocked(DevicePolicyData policy) { 2660 if (policy.mPasswordOwner >= 0) { 2661 boolean haveOwner = false; 2662 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 2663 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 2664 haveOwner = true; 2665 break; 2666 } 2667 } 2668 if (!haveOwner) { 2669 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 2670 + " no longer active; disabling"); 2671 policy.mPasswordOwner = -1; 2672 } 2673 } 2674 } 2675 2676 @VisibleForTesting 2677 void systemReady(int phase) { 2678 if (!mHasFeature) { 2679 return; 2680 } 2681 switch (phase) { 2682 case SystemService.PHASE_LOCK_SETTINGS_READY: 2683 onLockSettingsReady(); 2684 break; 2685 case SystemService.PHASE_BOOT_COMPLETED: 2686 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 2687 break; 2688 } 2689 } 2690 2691 private void onLockSettingsReady() { 2692 getUserData(UserHandle.USER_SYSTEM); 2693 loadOwners(); 2694 cleanUpOldUsers(); 2695 2696 onStartUser(UserHandle.USER_SYSTEM); 2697 2698 // Register an observer for watching for user setup complete. 2699 new SetupContentObserver(mHandler).register(); 2700 // Initialize the user setup state, to handle the upgrade case. 2701 updateUserSetupCompleteAndPaired(); 2702 2703 List<String> packageList; 2704 synchronized (this) { 2705 packageList = getKeepUninstalledPackagesLocked(); 2706 } 2707 if (packageList != null) { 2708 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 2709 } 2710 2711 synchronized (this) { 2712 // push the force-ephemeral-users policy to the user manager. 2713 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 2714 if (deviceOwner != null) { 2715 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 2716 } 2717 } 2718 } 2719 2720 private void ensureDeviceOwnerUserStarted() { 2721 final int userId; 2722 synchronized (this) { 2723 if (!mOwners.hasDeviceOwner()) { 2724 return; 2725 } 2726 userId = mOwners.getDeviceOwnerUserId(); 2727 } 2728 if (VERBOSE_LOG) { 2729 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 2730 } 2731 if (userId != UserHandle.USER_SYSTEM) { 2732 try { 2733 mInjector.getIActivityManager().startUserInBackground(userId); 2734 2735 // STOPSHIP Prevent the DO user from being killed. 2736 2737 } catch (RemoteException e) { 2738 Slog.w(LOG_TAG, "Exception starting user", e); 2739 } 2740 } 2741 } 2742 2743 private void onStartUser(int userId) { 2744 updateScreenCaptureDisabledInWindowManager(userId, 2745 getScreenCaptureDisabled(null, userId)); 2746 pushUserRestrictions(userId); 2747 } 2748 2749 private void cleanUpOldUsers() { 2750 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 2751 // before reboot 2752 Set<Integer> usersWithProfileOwners; 2753 Set<Integer> usersWithData; 2754 synchronized(this) { 2755 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 2756 usersWithData = new ArraySet<>(); 2757 for (int i = 0; i < mUserData.size(); i++) { 2758 usersWithData.add(mUserData.keyAt(i)); 2759 } 2760 } 2761 List<UserInfo> allUsers = mUserManager.getUsers(); 2762 2763 Set<Integer> deletedUsers = new ArraySet<>(); 2764 deletedUsers.addAll(usersWithProfileOwners); 2765 deletedUsers.addAll(usersWithData); 2766 for (UserInfo userInfo : allUsers) { 2767 deletedUsers.remove(userInfo.id); 2768 } 2769 for (Integer userId : deletedUsers) { 2770 removeUserData(userId); 2771 } 2772 } 2773 2774 private void handlePasswordExpirationNotification(int userHandle) { 2775 synchronized (this) { 2776 final long now = System.currentTimeMillis(); 2777 2778 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 2779 userHandle, /* parent */ false); 2780 final int N = admins.size(); 2781 for (int i = 0; i < N; i++) { 2782 ActiveAdmin admin = admins.get(i); 2783 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 2784 && admin.passwordExpirationTimeout > 0L 2785 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 2786 && admin.passwordExpirationDate > 0L) { 2787 sendAdminCommandLocked(admin, 2788 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING); 2789 } 2790 } 2791 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 2792 } 2793 } 2794 2795 private class MonitoringCertNotificationTask extends AsyncTask<Integer, Void, Void> { 2796 @Override 2797 protected Void doInBackground(Integer... params) { 2798 int userHandle = params[0]; 2799 2800 if (userHandle == UserHandle.USER_ALL) { 2801 for (UserInfo userInfo : mUserManager.getUsers(true)) { 2802 manageNotification(userInfo.getUserHandle()); 2803 } 2804 } else { 2805 manageNotification(UserHandle.of(userHandle)); 2806 } 2807 return null; 2808 } 2809 2810 private void manageNotification(UserHandle userHandle) { 2811 if (!mUserManager.isUserUnlocked(userHandle)) { 2812 return; 2813 } 2814 2815 // Call out to KeyChain to check for CAs which are waiting for approval. 2816 final List<String> pendingCertificates; 2817 try { 2818 pendingCertificates = getInstalledCaCertificates(userHandle); 2819 } catch (RemoteException | RuntimeException e) { 2820 Log.e(LOG_TAG, "Could not retrieve certificates from KeyChain service", e); 2821 return; 2822 } 2823 2824 synchronized (DevicePolicyManagerService.this) { 2825 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 2826 2827 // Remove deleted certificates. Flush xml if necessary. 2828 if (policy.mAcceptedCaCertificates.retainAll(pendingCertificates)) { 2829 saveSettingsLocked(userHandle.getIdentifier()); 2830 } 2831 // Trim to approved certificates. 2832 pendingCertificates.removeAll(policy.mAcceptedCaCertificates); 2833 } 2834 2835 if (pendingCertificates.isEmpty()) { 2836 mInjector.getNotificationManager().cancelAsUser( 2837 null, MONITORING_CERT_NOTIFICATION_ID, userHandle); 2838 return; 2839 } 2840 2841 // Build and show a warning notification 2842 int smallIconId; 2843 String contentText; 2844 int parentUserId = userHandle.getIdentifier(); 2845 if (getProfileOwner(userHandle.getIdentifier()) != null) { 2846 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, 2847 getProfileOwnerName(userHandle.getIdentifier())); 2848 smallIconId = R.drawable.stat_sys_certificate_info; 2849 parentUserId = getProfileParentId(userHandle.getIdentifier()); 2850 } else if (getDeviceOwnerUserId() == userHandle.getIdentifier()) { 2851 contentText = mContext.getString(R.string.ssl_ca_cert_noti_managed, 2852 getDeviceOwnerName()); 2853 smallIconId = R.drawable.stat_sys_certificate_info; 2854 } else { 2855 contentText = mContext.getString(R.string.ssl_ca_cert_noti_by_unknown); 2856 smallIconId = android.R.drawable.stat_sys_warning; 2857 } 2858 2859 final int numberOfCertificates = pendingCertificates.size(); 2860 Intent dialogIntent = new Intent(Settings.ACTION_MONITORING_CERT_INFO); 2861 dialogIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK); 2862 dialogIntent.setPackage("com.android.settings"); 2863 dialogIntent.putExtra(Settings.EXTRA_NUMBER_OF_CERTIFICATES, numberOfCertificates); 2864 dialogIntent.putExtra(Intent.EXTRA_USER_ID, userHandle.getIdentifier()); 2865 PendingIntent notifyIntent = PendingIntent.getActivityAsUser(mContext, 0, 2866 dialogIntent, PendingIntent.FLAG_UPDATE_CURRENT, null, 2867 new UserHandle(parentUserId)); 2868 2869 final Context userContext; 2870 try { 2871 final String packageName = mContext.getPackageName(); 2872 userContext = mContext.createPackageContextAsUser(packageName, 0, userHandle); 2873 } catch (PackageManager.NameNotFoundException e) { 2874 Log.e(LOG_TAG, "Create context as " + userHandle + " failed", e); 2875 return; 2876 } 2877 final Notification noti = new Notification.Builder(userContext) 2878 .setSmallIcon(smallIconId) 2879 .setContentTitle(mContext.getResources().getQuantityText( 2880 R.plurals.ssl_ca_cert_warning, numberOfCertificates)) 2881 .setContentText(contentText) 2882 .setContentIntent(notifyIntent) 2883 .setPriority(Notification.PRIORITY_HIGH) 2884 .setShowWhen(false) 2885 .setColor(mContext.getColor( 2886 com.android.internal.R.color.system_notification_accent_color)) 2887 .build(); 2888 2889 mInjector.getNotificationManager().notifyAsUser( 2890 null, MONITORING_CERT_NOTIFICATION_ID, noti, userHandle); 2891 } 2892 2893 private List<String> getInstalledCaCertificates(UserHandle userHandle) 2894 throws RemoteException, RuntimeException { 2895 KeyChainConnection conn = null; 2896 try { 2897 conn = KeyChain.bindAsUser(mContext, userHandle); 2898 List<ParcelableString> aliases = conn.getService().getUserCaAliases().getList(); 2899 List<String> result = new ArrayList<>(aliases.size()); 2900 for (int i = 0; i < aliases.size(); i++) { 2901 result.add(aliases.get(i).string); 2902 } 2903 return result; 2904 } catch (InterruptedException e) { 2905 Thread.currentThread().interrupt(); 2906 return null; 2907 } catch (AssertionError e) { 2908 throw new RuntimeException(e); 2909 } finally { 2910 if (conn != null) { 2911 conn.close(); 2912 } 2913 } 2914 } 2915 } 2916 2917 /** 2918 * @param adminReceiver The admin to add 2919 * @param refreshing true = update an active admin, no error 2920 */ 2921 @Override 2922 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 2923 if (!mHasFeature) { 2924 return; 2925 } 2926 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 2927 } 2928 2929 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 2930 Bundle onEnableData) { 2931 mContext.enforceCallingOrSelfPermission( 2932 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 2933 enforceFullCrossUsersPermission(userHandle); 2934 2935 DevicePolicyData policy = getUserData(userHandle); 2936 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 2937 /* throwForMissionPermission= */ true); 2938 if (info == null) { 2939 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 2940 } 2941 if (!info.getActivityInfo().applicationInfo.isInternal()) { 2942 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 2943 + adminReceiver); 2944 } 2945 synchronized (this) { 2946 long ident = mInjector.binderClearCallingIdentity(); 2947 try { 2948 final ActiveAdmin existingAdmin 2949 = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2950 if (!refreshing && existingAdmin != null) { 2951 throw new IllegalArgumentException("Admin is already added"); 2952 } 2953 if (policy.mRemovingAdmins.contains(adminReceiver)) { 2954 throw new IllegalArgumentException( 2955 "Trying to set an admin which is being removed"); 2956 } 2957 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 2958 newAdmin.testOnlyAdmin = 2959 (existingAdmin != null) ? existingAdmin.testOnlyAdmin 2960 : isPackageTestOnly(adminReceiver.getPackageName(), userHandle); 2961 policy.mAdminMap.put(adminReceiver, newAdmin); 2962 int replaceIndex = -1; 2963 final int N = policy.mAdminList.size(); 2964 for (int i=0; i < N; i++) { 2965 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 2966 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 2967 replaceIndex = i; 2968 break; 2969 } 2970 } 2971 if (replaceIndex == -1) { 2972 policy.mAdminList.add(newAdmin); 2973 enableIfNecessary(info.getPackageName(), userHandle); 2974 } else { 2975 policy.mAdminList.set(replaceIndex, newAdmin); 2976 } 2977 saveSettingsLocked(userHandle); 2978 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 2979 onEnableData, null); 2980 } finally { 2981 mInjector.binderRestoreCallingIdentity(ident); 2982 } 2983 } 2984 } 2985 2986 @Override 2987 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 2988 if (!mHasFeature) { 2989 return false; 2990 } 2991 enforceFullCrossUsersPermission(userHandle); 2992 synchronized (this) { 2993 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 2994 } 2995 } 2996 2997 @Override 2998 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 2999 if (!mHasFeature) { 3000 return false; 3001 } 3002 enforceFullCrossUsersPermission(userHandle); 3003 synchronized (this) { 3004 DevicePolicyData policyData = getUserData(userHandle); 3005 return policyData.mRemovingAdmins.contains(adminReceiver); 3006 } 3007 } 3008 3009 @Override 3010 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 3011 if (!mHasFeature) { 3012 return false; 3013 } 3014 enforceFullCrossUsersPermission(userHandle); 3015 synchronized (this) { 3016 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3017 if (administrator == null) { 3018 throw new SecurityException("No active admin " + adminReceiver); 3019 } 3020 return administrator.info.usesPolicy(policyId); 3021 } 3022 } 3023 3024 @Override 3025 @SuppressWarnings("unchecked") 3026 public List<ComponentName> getActiveAdmins(int userHandle) { 3027 if (!mHasFeature) { 3028 return Collections.EMPTY_LIST; 3029 } 3030 3031 enforceFullCrossUsersPermission(userHandle); 3032 synchronized (this) { 3033 DevicePolicyData policy = getUserData(userHandle); 3034 final int N = policy.mAdminList.size(); 3035 if (N <= 0) { 3036 return null; 3037 } 3038 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 3039 for (int i=0; i<N; i++) { 3040 res.add(policy.mAdminList.get(i).info.getComponent()); 3041 } 3042 return res; 3043 } 3044 } 3045 3046 @Override 3047 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 3048 if (!mHasFeature) { 3049 return false; 3050 } 3051 enforceFullCrossUsersPermission(userHandle); 3052 synchronized (this) { 3053 DevicePolicyData policy = getUserData(userHandle); 3054 final int N = policy.mAdminList.size(); 3055 for (int i=0; i<N; i++) { 3056 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 3057 return true; 3058 } 3059 } 3060 return false; 3061 } 3062 } 3063 3064 public void forceRemoveActiveAdmin(ComponentName adminReceiver, int userHandle) { 3065 if (!mHasFeature) { 3066 return; 3067 } 3068 Preconditions.checkNotNull(adminReceiver, "ComponentName is null"); 3069 enforceShell("forceRemoveActiveAdmin"); 3070 long ident = mInjector.binderClearCallingIdentity(); 3071 try { 3072 synchronized (this) { 3073 if (!isAdminTestOnlyLocked(adminReceiver, userHandle)) { 3074 throw new SecurityException("Attempt to remove non-test admin " 3075 + adminReceiver + " " + userHandle); 3076 } 3077 3078 // If admin is a device or profile owner tidy that up first. 3079 if (isDeviceOwner(adminReceiver, userHandle)) { 3080 clearDeviceOwnerLocked(getDeviceOwnerAdminLocked(), userHandle); 3081 } 3082 if (isProfileOwner(adminReceiver, userHandle)) { 3083 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, 3084 userHandle, /* parent */ false); 3085 clearProfileOwnerLocked(admin, userHandle); 3086 } 3087 } 3088 // Remove the admin skipping sending the broadcast. 3089 removeAdminArtifacts(adminReceiver, userHandle); 3090 Slog.i(LOG_TAG, "Admin " + adminReceiver + " removed from user " + userHandle); 3091 } finally { 3092 mInjector.binderRestoreCallingIdentity(ident); 3093 } 3094 } 3095 3096 /** 3097 * Return if a given package has testOnly="true", in which case we'll relax certain rules 3098 * for CTS. 3099 * 3100 * DO NOT use this method except in {@link #setActiveAdmin}. Use {@link #isAdminTestOnlyLocked} 3101 * to check wehter an active admin is test-only or not. 3102 * 3103 * The system allows this flag to be changed when an app is updated, which is not good 3104 * for us. So we persist the flag in {@link ActiveAdmin} when an admin is first installed, 3105 * and used the persisted version in actual checks. (See b/31382361 and b/28928996) 3106 */ 3107 private boolean isPackageTestOnly(String packageName, int userHandle) { 3108 final ApplicationInfo ai; 3109 try { 3110 ai = mIPackageManager.getApplicationInfo(packageName, 3111 (PackageManager.MATCH_DIRECT_BOOT_AWARE 3112 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE), userHandle); 3113 } catch (RemoteException e) { 3114 throw new IllegalStateException(e); 3115 } 3116 if (ai == null) { 3117 throw new IllegalStateException("Couldn't find package: " 3118 + packageName + " on user " + userHandle); 3119 } 3120 return (ai.flags & ApplicationInfo.FLAG_TEST_ONLY) != 0; 3121 } 3122 3123 /** 3124 * See {@link #isPackageTestOnly}. 3125 */ 3126 private boolean isAdminTestOnlyLocked(ComponentName who, int userHandle) { 3127 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3128 return (admin != null) && admin.testOnlyAdmin; 3129 } 3130 3131 private void enforceShell(String method) { 3132 final int callingUid = Binder.getCallingUid(); 3133 if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) { 3134 throw new SecurityException("Non-shell user attempted to call " + method); 3135 } 3136 } 3137 3138 @Override 3139 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 3140 if (!mHasFeature) { 3141 return; 3142 } 3143 enforceFullCrossUsersPermission(userHandle); 3144 enforceUserUnlocked(userHandle); 3145 synchronized (this) { 3146 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3147 if (admin == null) { 3148 return; 3149 } 3150 // Active device/profile owners must remain active admins. 3151 if (isDeviceOwner(adminReceiver, userHandle) 3152 || isProfileOwner(adminReceiver, userHandle)) { 3153 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 3154 adminReceiver); 3155 return; 3156 } 3157 if (admin.getUid() != mInjector.binderGetCallingUid()) { 3158 mContext.enforceCallingOrSelfPermission( 3159 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3160 } 3161 long ident = mInjector.binderClearCallingIdentity(); 3162 try { 3163 removeActiveAdminLocked(adminReceiver, userHandle); 3164 } finally { 3165 mInjector.binderRestoreCallingIdentity(ident); 3166 } 3167 } 3168 } 3169 3170 @Override 3171 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 3172 ComponentName profileOwner = getProfileOwner(userHandle); 3173 // Profile challenge is supported on N or newer release. 3174 return profileOwner != null && 3175 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 3176 } 3177 3178 @Override 3179 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 3180 if (!mHasFeature) { 3181 return; 3182 } 3183 Preconditions.checkNotNull(who, "ComponentName is null"); 3184 validateQualityConstant(quality); 3185 3186 synchronized (this) { 3187 ActiveAdmin ap = getActiveAdminForCallerLocked( 3188 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3189 if (ap.minimumPasswordMetrics.quality != quality) { 3190 ap.minimumPasswordMetrics.quality = quality; 3191 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3192 } 3193 } 3194 } 3195 3196 @Override 3197 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 3198 if (!mHasFeature) { 3199 return DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3200 } 3201 enforceFullCrossUsersPermission(userHandle); 3202 synchronized (this) { 3203 int mode = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 3204 3205 if (who != null) { 3206 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3207 return admin != null ? admin.minimumPasswordMetrics.quality : mode; 3208 } 3209 3210 // Return the strictest policy across all participating admins. 3211 List<ActiveAdmin> admins = 3212 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3213 final int N = admins.size(); 3214 for (int i = 0; i < N; i++) { 3215 ActiveAdmin admin = admins.get(i); 3216 if (mode < admin.minimumPasswordMetrics.quality) { 3217 mode = admin.minimumPasswordMetrics.quality; 3218 } 3219 } 3220 return mode; 3221 } 3222 } 3223 3224 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 3225 int userHandle, boolean parent) { 3226 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 3227 // If this user has a separate challenge, only return its restrictions. 3228 return getUserDataUnchecked(userHandle).mAdminList; 3229 } else { 3230 // Return all admins for this user and the profiles that are visible from this 3231 // user that do not use a separate work challenge. 3232 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 3233 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 3234 DevicePolicyData policy = getUserData(userInfo.id); 3235 if (!userInfo.isManagedProfile()) { 3236 admins.addAll(policy.mAdminList); 3237 } else { 3238 // For managed profiles, we always include the policies set on the parent 3239 // profile. Additionally, we include the ones set on the managed profile 3240 // if no separate challenge is in place. 3241 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 3242 final int N = policy.mAdminList.size(); 3243 for (int i = 0; i < N; i++) { 3244 ActiveAdmin admin = policy.mAdminList.get(i); 3245 if (admin.hasParentActiveAdmin()) { 3246 admins.add(admin.getParentActiveAdmin()); 3247 } 3248 if (!hasSeparateChallenge) { 3249 admins.add(admin); 3250 } 3251 } 3252 } 3253 } 3254 return admins; 3255 } 3256 } 3257 3258 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 3259 long ident = mInjector.binderClearCallingIdentity(); 3260 try { 3261 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 3262 } finally { 3263 mInjector.binderRestoreCallingIdentity(ident); 3264 } 3265 } 3266 3267 @Override 3268 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 3269 if (!mHasFeature) { 3270 return; 3271 } 3272 Preconditions.checkNotNull(who, "ComponentName is null"); 3273 synchronized (this) { 3274 ActiveAdmin ap = getActiveAdminForCallerLocked( 3275 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3276 if (ap.minimumPasswordMetrics.length != length) { 3277 ap.minimumPasswordMetrics.length = length; 3278 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3279 } 3280 } 3281 } 3282 3283 @Override 3284 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 3285 if (!mHasFeature) { 3286 return 0; 3287 } 3288 enforceFullCrossUsersPermission(userHandle); 3289 synchronized (this) { 3290 int length = 0; 3291 3292 if (who != null) { 3293 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3294 return admin != null ? admin.minimumPasswordMetrics.length : length; 3295 } 3296 3297 // Return the strictest policy across all participating admins. 3298 List<ActiveAdmin> admins = 3299 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3300 final int N = admins.size(); 3301 for (int i = 0; i < N; i++) { 3302 ActiveAdmin admin = admins.get(i); 3303 if (length < admin.minimumPasswordMetrics.length) { 3304 length = admin.minimumPasswordMetrics.length; 3305 } 3306 } 3307 return length; 3308 } 3309 } 3310 3311 @Override 3312 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 3313 if (!mHasFeature) { 3314 return; 3315 } 3316 Preconditions.checkNotNull(who, "ComponentName is null"); 3317 synchronized (this) { 3318 ActiveAdmin ap = getActiveAdminForCallerLocked( 3319 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3320 if (ap.passwordHistoryLength != length) { 3321 ap.passwordHistoryLength = length; 3322 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3323 } 3324 } 3325 } 3326 3327 @Override 3328 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 3329 if (!mHasFeature) { 3330 return 0; 3331 } 3332 enforceFullCrossUsersPermission(userHandle); 3333 synchronized (this) { 3334 int length = 0; 3335 3336 if (who != null) { 3337 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3338 return admin != null ? admin.passwordHistoryLength : length; 3339 } 3340 3341 // Return the strictest policy across all participating admins. 3342 List<ActiveAdmin> admins = 3343 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3344 final int N = admins.size(); 3345 for (int i = 0; i < N; i++) { 3346 ActiveAdmin admin = admins.get(i); 3347 if (length < admin.passwordHistoryLength) { 3348 length = admin.passwordHistoryLength; 3349 } 3350 } 3351 3352 return length; 3353 } 3354 } 3355 3356 @Override 3357 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 3358 if (!mHasFeature) { 3359 return; 3360 } 3361 Preconditions.checkNotNull(who, "ComponentName is null"); 3362 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 3363 final int userHandle = mInjector.userHandleGetCallingUserId(); 3364 synchronized (this) { 3365 ActiveAdmin ap = getActiveAdminForCallerLocked( 3366 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 3367 // Calling this API automatically bumps the expiration date 3368 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 3369 ap.passwordExpirationDate = expiration; 3370 ap.passwordExpirationTimeout = timeout; 3371 if (timeout > 0L) { 3372 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 3373 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 3374 .format(new Date(expiration))); 3375 } 3376 saveSettingsLocked(userHandle); 3377 3378 // in case this is the first one, set the alarm on the appropriate user. 3379 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 3380 } 3381 } 3382 3383 /** 3384 * Return a single admin's expiration cycle time, or the min of all cycle times. 3385 * Returns 0 if not configured. 3386 */ 3387 @Override 3388 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 3389 if (!mHasFeature) { 3390 return 0L; 3391 } 3392 enforceFullCrossUsersPermission(userHandle); 3393 synchronized (this) { 3394 long timeout = 0L; 3395 3396 if (who != null) { 3397 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3398 return admin != null ? admin.passwordExpirationTimeout : timeout; 3399 } 3400 3401 // Return the strictest policy across all participating admins. 3402 List<ActiveAdmin> admins = 3403 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3404 final int N = admins.size(); 3405 for (int i = 0; i < N; i++) { 3406 ActiveAdmin admin = admins.get(i); 3407 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 3408 && timeout > admin.passwordExpirationTimeout)) { 3409 timeout = admin.passwordExpirationTimeout; 3410 } 3411 } 3412 return timeout; 3413 } 3414 } 3415 3416 @Override 3417 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3418 final int userId = UserHandle.getCallingUserId(); 3419 List<String> changedProviders = null; 3420 3421 synchronized (this) { 3422 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3423 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3424 if (activeAdmin.crossProfileWidgetProviders == null) { 3425 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 3426 } 3427 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3428 if (!providers.contains(packageName)) { 3429 providers.add(packageName); 3430 changedProviders = new ArrayList<>(providers); 3431 saveSettingsLocked(userId); 3432 } 3433 } 3434 3435 if (changedProviders != null) { 3436 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3437 return true; 3438 } 3439 3440 return false; 3441 } 3442 3443 @Override 3444 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 3445 final int userId = UserHandle.getCallingUserId(); 3446 List<String> changedProviders = null; 3447 3448 synchronized (this) { 3449 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3450 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3451 if (activeAdmin.crossProfileWidgetProviders == null) { 3452 return false; 3453 } 3454 List<String> providers = activeAdmin.crossProfileWidgetProviders; 3455 if (providers.remove(packageName)) { 3456 changedProviders = new ArrayList<>(providers); 3457 saveSettingsLocked(userId); 3458 } 3459 } 3460 3461 if (changedProviders != null) { 3462 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 3463 return true; 3464 } 3465 3466 return false; 3467 } 3468 3469 @Override 3470 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 3471 synchronized (this) { 3472 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 3473 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 3474 if (activeAdmin.crossProfileWidgetProviders == null 3475 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 3476 return null; 3477 } 3478 if (mInjector.binderIsCallingUidMyUid()) { 3479 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 3480 } else { 3481 return activeAdmin.crossProfileWidgetProviders; 3482 } 3483 } 3484 } 3485 3486 /** 3487 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 3488 * Returns 0 if not configured. 3489 */ 3490 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 3491 long timeout = 0L; 3492 3493 if (who != null) { 3494 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3495 return admin != null ? admin.passwordExpirationDate : timeout; 3496 } 3497 3498 // Return the strictest policy across all participating admins. 3499 List<ActiveAdmin> admins = 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 (timeout == 0L || (admin.passwordExpirationDate != 0 3504 && timeout > admin.passwordExpirationDate)) { 3505 timeout = admin.passwordExpirationDate; 3506 } 3507 } 3508 return timeout; 3509 } 3510 3511 @Override 3512 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 3513 if (!mHasFeature) { 3514 return 0L; 3515 } 3516 enforceFullCrossUsersPermission(userHandle); 3517 synchronized (this) { 3518 return getPasswordExpirationLocked(who, userHandle, parent); 3519 } 3520 } 3521 3522 @Override 3523 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 3524 if (!mHasFeature) { 3525 return; 3526 } 3527 Preconditions.checkNotNull(who, "ComponentName is null"); 3528 synchronized (this) { 3529 ActiveAdmin ap = getActiveAdminForCallerLocked( 3530 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3531 if (ap.minimumPasswordMetrics.upperCase != length) { 3532 ap.minimumPasswordMetrics.upperCase = length; 3533 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3534 } 3535 } 3536 } 3537 3538 @Override 3539 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 3540 if (!mHasFeature) { 3541 return 0; 3542 } 3543 enforceFullCrossUsersPermission(userHandle); 3544 synchronized (this) { 3545 int length = 0; 3546 3547 if (who != null) { 3548 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3549 return admin != null ? admin.minimumPasswordMetrics.upperCase : length; 3550 } 3551 3552 // Return the strictest policy across all participating admins. 3553 List<ActiveAdmin> admins = 3554 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3555 final int N = admins.size(); 3556 for (int i = 0; i < N; i++) { 3557 ActiveAdmin admin = admins.get(i); 3558 if (length < admin.minimumPasswordMetrics.upperCase) { 3559 length = admin.minimumPasswordMetrics.upperCase; 3560 } 3561 } 3562 return length; 3563 } 3564 } 3565 3566 @Override 3567 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 3568 Preconditions.checkNotNull(who, "ComponentName is null"); 3569 synchronized (this) { 3570 ActiveAdmin ap = getActiveAdminForCallerLocked( 3571 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3572 if (ap.minimumPasswordMetrics.lowerCase != length) { 3573 ap.minimumPasswordMetrics.lowerCase = length; 3574 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3575 } 3576 } 3577 } 3578 3579 @Override 3580 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 3581 if (!mHasFeature) { 3582 return 0; 3583 } 3584 enforceFullCrossUsersPermission(userHandle); 3585 synchronized (this) { 3586 int length = 0; 3587 3588 if (who != null) { 3589 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3590 return admin != null ? admin.minimumPasswordMetrics.lowerCase : length; 3591 } 3592 3593 // Return the strictest policy across all participating admins. 3594 List<ActiveAdmin> admins = 3595 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3596 final int N = admins.size(); 3597 for (int i = 0; i < N; i++) { 3598 ActiveAdmin admin = admins.get(i); 3599 if (length < admin.minimumPasswordMetrics.lowerCase) { 3600 length = admin.minimumPasswordMetrics.lowerCase; 3601 } 3602 } 3603 return length; 3604 } 3605 } 3606 3607 @Override 3608 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 3609 if (!mHasFeature) { 3610 return; 3611 } 3612 Preconditions.checkNotNull(who, "ComponentName is null"); 3613 synchronized (this) { 3614 ActiveAdmin ap = getActiveAdminForCallerLocked( 3615 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3616 if (ap.minimumPasswordMetrics.letters != length) { 3617 ap.minimumPasswordMetrics.letters = length; 3618 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3619 } 3620 } 3621 } 3622 3623 @Override 3624 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 3625 if (!mHasFeature) { 3626 return 0; 3627 } 3628 enforceFullCrossUsersPermission(userHandle); 3629 synchronized (this) { 3630 int length = 0; 3631 3632 if (who != null) { 3633 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3634 return admin != null ? admin.minimumPasswordMetrics.letters : length; 3635 } 3636 3637 // Return the strictest policy across all participating admins. 3638 List<ActiveAdmin> admins = 3639 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3640 final int N = admins.size(); 3641 for (int i = 0; i < N; i++) { 3642 ActiveAdmin admin = admins.get(i); 3643 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3644 continue; 3645 } 3646 if (length < admin.minimumPasswordMetrics.letters) { 3647 length = admin.minimumPasswordMetrics.letters; 3648 } 3649 } 3650 return length; 3651 } 3652 } 3653 3654 @Override 3655 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 3656 if (!mHasFeature) { 3657 return; 3658 } 3659 Preconditions.checkNotNull(who, "ComponentName is null"); 3660 synchronized (this) { 3661 ActiveAdmin ap = getActiveAdminForCallerLocked( 3662 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3663 if (ap.minimumPasswordMetrics.numeric != length) { 3664 ap.minimumPasswordMetrics.numeric = length; 3665 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3666 } 3667 } 3668 } 3669 3670 @Override 3671 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 3672 if (!mHasFeature) { 3673 return 0; 3674 } 3675 enforceFullCrossUsersPermission(userHandle); 3676 synchronized (this) { 3677 int length = 0; 3678 3679 if (who != null) { 3680 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3681 return admin != null ? admin.minimumPasswordMetrics.numeric : length; 3682 } 3683 3684 // Return the strictest policy across all participating admins. 3685 List<ActiveAdmin> admins = 3686 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3687 final int N = admins.size(); 3688 for (int i = 0; i < N; i++) { 3689 ActiveAdmin admin = admins.get(i); 3690 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3691 continue; 3692 } 3693 if (length < admin.minimumPasswordMetrics.numeric) { 3694 length = admin.minimumPasswordMetrics.numeric; 3695 } 3696 } 3697 return length; 3698 } 3699 } 3700 3701 @Override 3702 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 3703 if (!mHasFeature) { 3704 return; 3705 } 3706 Preconditions.checkNotNull(who, "ComponentName is null"); 3707 synchronized (this) { 3708 ActiveAdmin ap = getActiveAdminForCallerLocked( 3709 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3710 if (ap.minimumPasswordMetrics.symbols != length) { 3711 ap.minimumPasswordMetrics.symbols = length; 3712 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3713 } 3714 } 3715 } 3716 3717 @Override 3718 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 3719 if (!mHasFeature) { 3720 return 0; 3721 } 3722 enforceFullCrossUsersPermission(userHandle); 3723 synchronized (this) { 3724 int length = 0; 3725 3726 if (who != null) { 3727 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3728 return admin != null ? admin.minimumPasswordMetrics.symbols : length; 3729 } 3730 3731 // Return the strictest policy across all participating admins. 3732 List<ActiveAdmin> admins = 3733 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3734 final int N = admins.size(); 3735 for (int i = 0; i < N; i++) { 3736 ActiveAdmin admin = admins.get(i); 3737 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3738 continue; 3739 } 3740 if (length < admin.minimumPasswordMetrics.symbols) { 3741 length = admin.minimumPasswordMetrics.symbols; 3742 } 3743 } 3744 return length; 3745 } 3746 } 3747 3748 @Override 3749 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 3750 if (!mHasFeature) { 3751 return; 3752 } 3753 Preconditions.checkNotNull(who, "ComponentName is null"); 3754 synchronized (this) { 3755 ActiveAdmin ap = getActiveAdminForCallerLocked( 3756 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3757 if (ap.minimumPasswordMetrics.nonLetter != length) { 3758 ap.minimumPasswordMetrics.nonLetter = length; 3759 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3760 } 3761 } 3762 } 3763 3764 @Override 3765 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 3766 if (!mHasFeature) { 3767 return 0; 3768 } 3769 enforceFullCrossUsersPermission(userHandle); 3770 synchronized (this) { 3771 int length = 0; 3772 3773 if (who != null) { 3774 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3775 return admin != null ? admin.minimumPasswordMetrics.nonLetter : length; 3776 } 3777 3778 // Return the strictest policy across all participating admins. 3779 List<ActiveAdmin> admins = 3780 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3781 final int N = admins.size(); 3782 for (int i = 0; i < N; i++) { 3783 ActiveAdmin admin = admins.get(i); 3784 if (!isLimitPasswordAllowed(admin, PASSWORD_QUALITY_COMPLEX)) { 3785 continue; 3786 } 3787 if (length < admin.minimumPasswordMetrics.nonLetter) { 3788 length = admin.minimumPasswordMetrics.nonLetter; 3789 } 3790 } 3791 return length; 3792 } 3793 } 3794 3795 @Override 3796 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 3797 if (!mHasFeature) { 3798 return true; 3799 } 3800 enforceFullCrossUsersPermission(userHandle); 3801 3802 synchronized (this) { 3803 // This API can only be called by an active device admin, 3804 // so try to retrieve it to check that the caller is one. 3805 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3806 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3807 return isActivePasswordSufficientForUserLocked(policy, userHandle, parent); 3808 } 3809 } 3810 3811 @Override 3812 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 3813 if (!mHasFeature) { 3814 return true; 3815 } 3816 enforceFullCrossUsersPermission(userHandle); 3817 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 3818 3819 synchronized (this) { 3820 int targetUser = getProfileParentId(userHandle); 3821 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, false)); 3822 return isActivePasswordSufficientForUserLocked(policy, targetUser, false); 3823 } 3824 } 3825 3826 private boolean isActivePasswordSufficientForUserLocked( 3827 DevicePolicyData policy, int userHandle, boolean parent) { 3828 final int requiredPasswordQuality = getPasswordQuality(null, userHandle, parent); 3829 if (policy.mActivePasswordMetrics.quality < requiredPasswordQuality) { 3830 return false; 3831 } 3832 if (requiredPasswordQuality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC 3833 && policy.mActivePasswordMetrics.length < getPasswordMinimumLength( 3834 null, userHandle, parent)) { 3835 return false; 3836 } 3837 if (requiredPasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 3838 return true; 3839 } 3840 return policy.mActivePasswordMetrics.upperCase >= getPasswordMinimumUpperCase( 3841 null, userHandle, parent) 3842 && policy.mActivePasswordMetrics.lowerCase >= getPasswordMinimumLowerCase( 3843 null, userHandle, parent) 3844 && policy.mActivePasswordMetrics.letters >= getPasswordMinimumLetters( 3845 null, userHandle, parent) 3846 && policy.mActivePasswordMetrics.numeric >= getPasswordMinimumNumeric( 3847 null, userHandle, parent) 3848 && policy.mActivePasswordMetrics.symbols >= getPasswordMinimumSymbols( 3849 null, userHandle, parent) 3850 && policy.mActivePasswordMetrics.nonLetter >= getPasswordMinimumNonLetter( 3851 null, userHandle, parent); 3852 } 3853 3854 @Override 3855 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 3856 enforceFullCrossUsersPermission(userHandle); 3857 synchronized (this) { 3858 if (!isCallerWithSystemUid()) { 3859 // This API can only be called by an active device admin, 3860 // so try to retrieve it to check that the caller is one. 3861 getActiveAdminForCallerLocked( 3862 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 3863 } 3864 3865 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 3866 3867 return policy.mFailedPasswordAttempts; 3868 } 3869 } 3870 3871 @Override 3872 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 3873 if (!mHasFeature) { 3874 return; 3875 } 3876 Preconditions.checkNotNull(who, "ComponentName is null"); 3877 synchronized (this) { 3878 // This API can only be called by an active device admin, 3879 // so try to retrieve it to check that the caller is one. 3880 getActiveAdminForCallerLocked( 3881 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 3882 ActiveAdmin ap = getActiveAdminForCallerLocked( 3883 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 3884 if (ap.maximumFailedPasswordsForWipe != num) { 3885 ap.maximumFailedPasswordsForWipe = num; 3886 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 3887 } 3888 } 3889 } 3890 3891 @Override 3892 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 3893 if (!mHasFeature) { 3894 return 0; 3895 } 3896 enforceFullCrossUsersPermission(userHandle); 3897 synchronized (this) { 3898 ActiveAdmin admin = (who != null) 3899 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 3900 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 3901 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 3902 } 3903 } 3904 3905 @Override 3906 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 3907 if (!mHasFeature) { 3908 return UserHandle.USER_NULL; 3909 } 3910 enforceFullCrossUsersPermission(userHandle); 3911 synchronized (this) { 3912 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 3913 userHandle, parent); 3914 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 3915 } 3916 } 3917 3918 /** 3919 * Returns the admin with the strictest policy on maximum failed passwords for: 3920 * <ul> 3921 * <li>this user if it has a separate profile challenge, or 3922 * <li>this user and all profiles that don't have their own challenge otherwise. 3923 * </ul> 3924 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 3925 * the primary profile. 3926 * Returns {@code null} if no participating admin has that policy set. 3927 */ 3928 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 3929 int userHandle, boolean parent) { 3930 int count = 0; 3931 ActiveAdmin strictestAdmin = null; 3932 3933 // Return the strictest policy across all participating admins. 3934 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3935 final int N = admins.size(); 3936 for (int i = 0; i < N; i++) { 3937 ActiveAdmin admin = admins.get(i); 3938 if (admin.maximumFailedPasswordsForWipe == 3939 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 3940 continue; // No max number of failed passwords policy set for this profile. 3941 } 3942 3943 // We always favor the primary profile if several profiles have the same value set. 3944 int userId = admin.getUserHandle().getIdentifier(); 3945 if (count == 0 || 3946 count > admin.maximumFailedPasswordsForWipe || 3947 (count == admin.maximumFailedPasswordsForWipe && 3948 getUserInfo(userId).isPrimary())) { 3949 count = admin.maximumFailedPasswordsForWipe; 3950 strictestAdmin = admin; 3951 } 3952 } 3953 return strictestAdmin; 3954 } 3955 3956 private UserInfo getUserInfo(@UserIdInt int userId) { 3957 final long token = mInjector.binderClearCallingIdentity(); 3958 try { 3959 return mUserManager.getUserInfo(userId); 3960 } finally { 3961 mInjector.binderRestoreCallingIdentity(token); 3962 } 3963 } 3964 3965 @Override 3966 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 3967 if (!mHasFeature) { 3968 return false; 3969 } 3970 final int callingUid = mInjector.binderGetCallingUid(); 3971 final int userHandle = mInjector.userHandleGetCallingUserId(); 3972 3973 String password = passwordOrNull != null ? passwordOrNull : ""; 3974 3975 // Password resetting to empty/null is not allowed for managed profiles. 3976 if (TextUtils.isEmpty(password)) { 3977 enforceNotManagedProfile(userHandle, "clear the active password"); 3978 } 3979 3980 int quality; 3981 synchronized (this) { 3982 // If caller has PO (or DO) it can change the password, so see if that's the case first. 3983 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 3984 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 3985 final boolean preN; 3986 if (admin != null) { 3987 preN = getTargetSdk(admin.info.getPackageName(), 3988 userHandle) <= android.os.Build.VERSION_CODES.M; 3989 } else { 3990 // Otherwise, make sure the caller has any active admin with the right policy. 3991 admin = getActiveAdminForCallerLocked(null, 3992 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 3993 preN = getTargetSdk(admin.info.getPackageName(), 3994 userHandle) <= android.os.Build.VERSION_CODES.M; 3995 3996 // As of N, password resetting to empty/null is not allowed anymore. 3997 // TODO Should we allow DO/PO to set an empty password? 3998 if (TextUtils.isEmpty(password)) { 3999 if (!preN) { 4000 throw new SecurityException("Cannot call with null password"); 4001 } else { 4002 Slog.e(LOG_TAG, "Cannot call with null password"); 4003 return false; 4004 } 4005 } 4006 // As of N, password cannot be changed by the admin if it is already set. 4007 if (isLockScreenSecureUnchecked(userHandle)) { 4008 if (!preN) { 4009 throw new SecurityException("Admin cannot change current password"); 4010 } else { 4011 Slog.e(LOG_TAG, "Admin cannot change current password"); 4012 return false; 4013 } 4014 } 4015 } 4016 // Do not allow to reset password when current user has a managed profile 4017 if (!isManagedProfile(userHandle)) { 4018 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4019 if (userInfo.isManagedProfile()) { 4020 if (!preN) { 4021 throw new IllegalStateException( 4022 "Cannot reset password on user has managed profile"); 4023 } else { 4024 Slog.e(LOG_TAG, "Cannot reset password on user has managed profile"); 4025 return false; 4026 } 4027 } 4028 } 4029 } 4030 // Do not allow to reset password when user is locked 4031 if (!mUserManager.isUserUnlocked(userHandle)) { 4032 if (!preN) { 4033 throw new IllegalStateException("Cannot reset password when user is locked"); 4034 } else { 4035 Slog.e(LOG_TAG, "Cannot reset password when user is locked"); 4036 return false; 4037 } 4038 } 4039 4040 quality = getPasswordQuality(null, userHandle, /* parent */ false); 4041 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 4042 quality = DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 4043 } 4044 final PasswordMetrics metrics = PasswordMetrics.computeForPassword(password); 4045 if (quality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) { 4046 final int realQuality = metrics.quality; 4047 if (realQuality < quality 4048 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4049 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 4050 + Integer.toHexString(realQuality) 4051 + " does not meet required quality 0x" 4052 + Integer.toHexString(quality)); 4053 return false; 4054 } 4055 quality = Math.max(realQuality, quality); 4056 } 4057 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 4058 if (password.length() < length) { 4059 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 4060 + " does not meet required length " + length); 4061 return false; 4062 } 4063 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4064 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 4065 if(metrics.letters < neededLetters) { 4066 Slog.w(LOG_TAG, "resetPassword: number of letters " + metrics.letters 4067 + " does not meet required number of letters " + neededLetters); 4068 return false; 4069 } 4070 int neededNumeric = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 4071 if (metrics.numeric < neededNumeric) { 4072 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + metrics.numeric 4073 + " does not meet required number of numerical digits " 4074 + neededNumeric); 4075 return false; 4076 } 4077 int neededLowerCase = getPasswordMinimumLowerCase( 4078 null, userHandle, /* parent */ false); 4079 if (metrics.lowerCase < neededLowerCase) { 4080 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " 4081 + metrics.lowerCase 4082 + " does not meet required number of lowercase letters " 4083 + neededLowerCase); 4084 return false; 4085 } 4086 int neededUpperCase = getPasswordMinimumUpperCase( 4087 null, userHandle, /* parent */ false); 4088 if (metrics.upperCase < neededUpperCase) { 4089 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " 4090 + metrics.upperCase 4091 + " does not meet required number of uppercase letters " 4092 + neededUpperCase); 4093 return false; 4094 } 4095 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 4096 if (metrics.symbols < neededSymbols) { 4097 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + metrics.symbols 4098 + " does not meet required number of special symbols " + neededSymbols); 4099 return false; 4100 } 4101 int neededNonLetter = getPasswordMinimumNonLetter( 4102 null, userHandle, /* parent */ false); 4103 if (metrics.nonLetter < neededNonLetter) { 4104 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " 4105 + metrics.nonLetter 4106 + " does not meet required number of non-letter characters " 4107 + neededNonLetter); 4108 return false; 4109 } 4110 } 4111 } 4112 4113 DevicePolicyData policy = getUserData(userHandle); 4114 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 4115 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 4116 return false; 4117 } 4118 4119 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 4120 boolean doNotAskCredentialsOnBoot = 4121 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 4122 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 4123 setDoNotAskCredentialsOnBoot(); 4124 } 4125 4126 // Don't do this with the lock held, because it is going to call 4127 // back in to the service. 4128 final long ident = mInjector.binderClearCallingIdentity(); 4129 try { 4130 if (!TextUtils.isEmpty(password)) { 4131 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 4132 } else { 4133 mLockPatternUtils.clearLock(userHandle); 4134 } 4135 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 4136 if (requireEntry) { 4137 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 4138 UserHandle.USER_ALL); 4139 } 4140 synchronized (this) { 4141 int newOwner = requireEntry ? callingUid : -1; 4142 if (policy.mPasswordOwner != newOwner) { 4143 policy.mPasswordOwner = newOwner; 4144 saveSettingsLocked(userHandle); 4145 } 4146 } 4147 } finally { 4148 mInjector.binderRestoreCallingIdentity(ident); 4149 } 4150 4151 return true; 4152 } 4153 4154 private boolean isLockScreenSecureUnchecked(int userId) { 4155 long ident = mInjector.binderClearCallingIdentity(); 4156 try { 4157 return mLockPatternUtils.isSecure(userId); 4158 } finally { 4159 mInjector.binderRestoreCallingIdentity(ident); 4160 } 4161 } 4162 4163 private void setDoNotAskCredentialsOnBoot() { 4164 synchronized (this) { 4165 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4166 if (!policyData.doNotAskCredentialsOnBoot) { 4167 policyData.doNotAskCredentialsOnBoot = true; 4168 saveSettingsLocked(UserHandle.USER_SYSTEM); 4169 } 4170 } 4171 } 4172 4173 @Override 4174 public boolean getDoNotAskCredentialsOnBoot() { 4175 mContext.enforceCallingOrSelfPermission( 4176 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 4177 synchronized (this) { 4178 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4179 return policyData.doNotAskCredentialsOnBoot; 4180 } 4181 } 4182 4183 @Override 4184 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 4185 if (!mHasFeature) { 4186 return; 4187 } 4188 Preconditions.checkNotNull(who, "ComponentName is null"); 4189 final int userHandle = mInjector.userHandleGetCallingUserId(); 4190 synchronized (this) { 4191 ActiveAdmin ap = getActiveAdminForCallerLocked( 4192 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4193 if (ap.maximumTimeToUnlock != timeMs) { 4194 ap.maximumTimeToUnlock = timeMs; 4195 saveSettingsLocked(userHandle); 4196 updateMaximumTimeToLockLocked(userHandle); 4197 } 4198 } 4199 } 4200 4201 void updateMaximumTimeToLockLocked(int userHandle) { 4202 // Calculate the min timeout for all profiles - including the ones with a separate 4203 // challenge. Ideally if the timeout only affected the profile challenge we'd lock that 4204 // challenge only and keep the screen on. However there is no easy way of doing that at the 4205 // moment so we set the screen off timeout regardless of whether it affects the parent user 4206 // or the profile challenge only. 4207 long timeMs = Long.MAX_VALUE; 4208 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 4209 for (int profileId : profileIds) { 4210 DevicePolicyData policy = getUserDataUnchecked(profileId); 4211 final int N = policy.mAdminList.size(); 4212 for (int i = 0; i < N; i++) { 4213 ActiveAdmin admin = policy.mAdminList.get(i); 4214 if (admin.maximumTimeToUnlock > 0 4215 && timeMs > admin.maximumTimeToUnlock) { 4216 timeMs = admin.maximumTimeToUnlock; 4217 } 4218 // If userInfo.id is a managed profile, we also need to look at 4219 // the policies set on the parent. 4220 if (admin.hasParentActiveAdmin()) { 4221 final ActiveAdmin parentAdmin = admin.getParentActiveAdmin(); 4222 if (parentAdmin.maximumTimeToUnlock > 0 4223 && timeMs > parentAdmin.maximumTimeToUnlock) { 4224 timeMs = parentAdmin.maximumTimeToUnlock; 4225 } 4226 } 4227 } 4228 } 4229 4230 // We only store the last maximum time to lock on the parent profile. So if calling from a 4231 // managed profile, retrieve the policy for the parent. 4232 DevicePolicyData policy = getUserDataUnchecked(getProfileParentId(userHandle)); 4233 if (policy.mLastMaximumTimeToLock == timeMs) { 4234 return; 4235 } 4236 policy.mLastMaximumTimeToLock = timeMs; 4237 4238 final long ident = mInjector.binderClearCallingIdentity(); 4239 try { 4240 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 4241 // Make sure KEEP_SCREEN_ON is disabled, since that 4242 // would allow bypassing of the maximum time to lock. 4243 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 4244 } 4245 4246 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4247 (int) Math.min(policy.mLastMaximumTimeToLock, Integer.MAX_VALUE)); 4248 } finally { 4249 mInjector.binderRestoreCallingIdentity(ident); 4250 } 4251 } 4252 4253 @Override 4254 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 4255 if (!mHasFeature) { 4256 return 0; 4257 } 4258 enforceFullCrossUsersPermission(userHandle); 4259 synchronized (this) { 4260 if (who != null) { 4261 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4262 return admin != null ? admin.maximumTimeToUnlock : 0; 4263 } 4264 // Return the strictest policy across all participating admins. 4265 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4266 userHandle, parent); 4267 return getMaximumTimeToLockPolicyFromAdmins(admins); 4268 } 4269 } 4270 4271 @Override 4272 public long getMaximumTimeToLockForUserAndProfiles(int userHandle) { 4273 if (!mHasFeature) { 4274 return 0; 4275 } 4276 enforceFullCrossUsersPermission(userHandle); 4277 synchronized (this) { 4278 // All admins for this user. 4279 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 4280 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4281 DevicePolicyData policy = getUserData(userInfo.id); 4282 admins.addAll(policy.mAdminList); 4283 // If it is a managed profile, it may have parent active admins 4284 if (userInfo.isManagedProfile()) { 4285 for (ActiveAdmin admin : policy.mAdminList) { 4286 if (admin.hasParentActiveAdmin()) { 4287 admins.add(admin.getParentActiveAdmin()); 4288 } 4289 } 4290 } 4291 } 4292 return getMaximumTimeToLockPolicyFromAdmins(admins); 4293 } 4294 } 4295 4296 private long getMaximumTimeToLockPolicyFromAdmins(List<ActiveAdmin> admins) { 4297 long time = 0; 4298 final int N = admins.size(); 4299 for (int i = 0; i < N; i++) { 4300 ActiveAdmin admin = admins.get(i); 4301 if (time == 0) { 4302 time = admin.maximumTimeToUnlock; 4303 } else if (admin.maximumTimeToUnlock != 0 4304 && time > admin.maximumTimeToUnlock) { 4305 time = admin.maximumTimeToUnlock; 4306 } 4307 } 4308 return time; 4309 } 4310 4311 @Override 4312 public void setRequiredStrongAuthTimeout(ComponentName who, long timeoutMs, 4313 boolean parent) { 4314 if (!mHasFeature) { 4315 return; 4316 } 4317 Preconditions.checkNotNull(who, "ComponentName is null"); 4318 Preconditions.checkArgument(timeoutMs >= 0, "Timeout must not be a negative number."); 4319 // timeoutMs with value 0 means that the admin doesn't participate 4320 // timeoutMs is clamped to the interval in case the internal constants change in the future 4321 if (timeoutMs != 0 && timeoutMs < MINIMUM_STRONG_AUTH_TIMEOUT_MS) { 4322 timeoutMs = MINIMUM_STRONG_AUTH_TIMEOUT_MS; 4323 } 4324 if (timeoutMs > DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 4325 timeoutMs = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4326 } 4327 4328 final int userHandle = mInjector.userHandleGetCallingUserId(); 4329 synchronized (this) { 4330 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 4331 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 4332 if (ap.strongAuthUnlockTimeout != timeoutMs) { 4333 ap.strongAuthUnlockTimeout = timeoutMs; 4334 saveSettingsLocked(userHandle); 4335 } 4336 } 4337 } 4338 4339 /** 4340 * Return a single admin's strong auth unlock timeout or minimum value (strictest) of all 4341 * admins if who is null. 4342 * Returns 0 if not configured for the provided admin. 4343 */ 4344 @Override 4345 public long getRequiredStrongAuthTimeout(ComponentName who, int userId, boolean parent) { 4346 if (!mHasFeature) { 4347 return DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4348 } 4349 enforceFullCrossUsersPermission(userId); 4350 synchronized (this) { 4351 if (who != null) { 4352 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId, parent); 4353 return admin != null ? admin.strongAuthUnlockTimeout : 0; 4354 } 4355 4356 // Return the strictest policy across all participating admins. 4357 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userId, parent); 4358 4359 long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 4360 for (int i = 0; i < admins.size(); i++) { 4361 final long timeout = admins.get(i).strongAuthUnlockTimeout; 4362 if (timeout != 0) { // take only participating admins into account 4363 strongAuthUnlockTimeout = Math.min(timeout, strongAuthUnlockTimeout); 4364 } 4365 } 4366 return Math.max(strongAuthUnlockTimeout, MINIMUM_STRONG_AUTH_TIMEOUT_MS); 4367 } 4368 } 4369 4370 @Override 4371 public void lockNow(boolean parent) { 4372 if (!mHasFeature) { 4373 return; 4374 } 4375 synchronized (this) { 4376 // This API can only be called by an active device admin, 4377 // so try to retrieve it to check that the caller is one. 4378 getActiveAdminForCallerLocked( 4379 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4380 4381 int userToLock = mInjector.userHandleGetCallingUserId(); 4382 4383 // Unless this is a managed profile with work challenge enabled, lock all users. 4384 if (parent || !isSeparateProfileChallengeEnabled(userToLock)) { 4385 userToLock = UserHandle.USER_ALL; 4386 } 4387 final long ident = mInjector.binderClearCallingIdentity(); 4388 try { 4389 mLockPatternUtils.requireStrongAuth( 4390 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 4391 if (userToLock == UserHandle.USER_ALL) { 4392 // Power off the display 4393 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 4394 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 4395 mInjector.getIWindowManager().lockNow(null); 4396 } 4397 } catch (RemoteException e) { 4398 } finally { 4399 mInjector.binderRestoreCallingIdentity(ident); 4400 } 4401 } 4402 } 4403 4404 @Override 4405 public void enforceCanManageCaCerts(ComponentName who) { 4406 if (who == null) { 4407 if (!isCallerDelegatedCertInstaller()) { 4408 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 4409 } 4410 } else { 4411 synchronized (this) { 4412 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4413 } 4414 } 4415 } 4416 4417 private void enforceCanManageInstalledKeys(ComponentName who) { 4418 if (who == null) { 4419 if (!isCallerDelegatedCertInstaller()) { 4420 throw new SecurityException("who == null, but caller is not cert installer"); 4421 } 4422 } else { 4423 synchronized (this) { 4424 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4425 } 4426 } 4427 } 4428 4429 private boolean isCallerDelegatedCertInstaller() { 4430 final int callingUid = mInjector.binderGetCallingUid(); 4431 final int userHandle = UserHandle.getUserId(callingUid); 4432 synchronized (this) { 4433 final DevicePolicyData policy = getUserData(userHandle); 4434 if (policy.mDelegatedCertInstallerPackage == null) { 4435 return false; 4436 } 4437 4438 try { 4439 int uid = mContext.getPackageManager().getPackageUidAsUser( 4440 policy.mDelegatedCertInstallerPackage, userHandle); 4441 return uid == callingUid; 4442 } catch (NameNotFoundException e) { 4443 return false; 4444 } 4445 } 4446 } 4447 4448 @Override 4449 public boolean approveCaCert(String alias, int userId, boolean approval) { 4450 enforceManageUsers(); 4451 synchronized (this) { 4452 Set<String> certs = getUserData(userId).mAcceptedCaCertificates; 4453 boolean changed = (approval ? certs.add(alias) : certs.remove(alias)); 4454 if (!changed) { 4455 return false; 4456 } 4457 saveSettingsLocked(userId); 4458 } 4459 new MonitoringCertNotificationTask().execute(userId); 4460 return true; 4461 } 4462 4463 @Override 4464 public boolean isCaCertApproved(String alias, int userId) { 4465 enforceManageUsers(); 4466 synchronized (this) { 4467 return getUserData(userId).mAcceptedCaCertificates.contains(alias); 4468 } 4469 } 4470 4471 private void removeCaApprovalsIfNeeded(int userId) { 4472 for (UserInfo userInfo : mUserManager.getProfiles(userId)) { 4473 boolean isSecure = mLockPatternUtils.isSecure(userInfo.id); 4474 if (userInfo.isManagedProfile()){ 4475 isSecure |= mLockPatternUtils.isSecure(getProfileParentId(userInfo.id)); 4476 } 4477 if (!isSecure) { 4478 synchronized (this) { 4479 getUserData(userInfo.id).mAcceptedCaCertificates.clear(); 4480 saveSettingsLocked(userInfo.id); 4481 } 4482 4483 new MonitoringCertNotificationTask().execute(userInfo.id); 4484 } 4485 } 4486 } 4487 4488 @Override 4489 public boolean installCaCert(ComponentName admin, byte[] certBuffer) throws RemoteException { 4490 enforceCanManageCaCerts(admin); 4491 4492 byte[] pemCert; 4493 try { 4494 X509Certificate cert = parseCert(certBuffer); 4495 pemCert = Credentials.convertToPem(cert); 4496 } catch (CertificateException ce) { 4497 Log.e(LOG_TAG, "Problem converting cert", ce); 4498 return false; 4499 } catch (IOException ioe) { 4500 Log.e(LOG_TAG, "Problem reading cert", ioe); 4501 return false; 4502 } 4503 4504 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4505 final long id = mInjector.binderClearCallingIdentity(); 4506 try { 4507 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4508 try { 4509 keyChainConnection.getService().installCaCertificate(pemCert); 4510 return true; 4511 } catch (RemoteException e) { 4512 Log.e(LOG_TAG, "installCaCertsToKeyChain(): ", e); 4513 } finally { 4514 keyChainConnection.close(); 4515 } 4516 } catch (InterruptedException e1) { 4517 Log.w(LOG_TAG, "installCaCertsToKeyChain(): ", e1); 4518 Thread.currentThread().interrupt(); 4519 } finally { 4520 mInjector.binderRestoreCallingIdentity(id); 4521 } 4522 return false; 4523 } 4524 4525 private static X509Certificate parseCert(byte[] certBuffer) throws CertificateException { 4526 CertificateFactory certFactory = CertificateFactory.getInstance("X.509"); 4527 return (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream( 4528 certBuffer)); 4529 } 4530 4531 @Override 4532 public void uninstallCaCerts(ComponentName admin, String[] aliases) { 4533 enforceCanManageCaCerts(admin); 4534 4535 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4536 final long id = mInjector.binderClearCallingIdentity(); 4537 try { 4538 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4539 try { 4540 for (int i = 0 ; i < aliases.length; i++) { 4541 keyChainConnection.getService().deleteCaCertificate(aliases[i]); 4542 } 4543 } catch (RemoteException e) { 4544 Log.e(LOG_TAG, "from CaCertUninstaller: ", e); 4545 } finally { 4546 keyChainConnection.close(); 4547 } 4548 } catch (InterruptedException ie) { 4549 Log.w(LOG_TAG, "CaCertUninstaller: ", ie); 4550 Thread.currentThread().interrupt(); 4551 } finally { 4552 mInjector.binderRestoreCallingIdentity(id); 4553 } 4554 } 4555 4556 @Override 4557 public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, byte[] chain, 4558 String alias, boolean requestAccess) { 4559 enforceCanManageInstalledKeys(who); 4560 4561 final int callingUid = mInjector.binderGetCallingUid(); 4562 final long id = mInjector.binderClearCallingIdentity(); 4563 try { 4564 final KeyChainConnection keyChainConnection = 4565 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 4566 try { 4567 IKeyChainService keyChain = keyChainConnection.getService(); 4568 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) { 4569 return false; 4570 } 4571 if (requestAccess) { 4572 keyChain.setGrant(callingUid, alias, true); 4573 } 4574 return true; 4575 } catch (RemoteException e) { 4576 Log.e(LOG_TAG, "Installing certificate", e); 4577 } finally { 4578 keyChainConnection.close(); 4579 } 4580 } catch (InterruptedException e) { 4581 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 4582 Thread.currentThread().interrupt(); 4583 } finally { 4584 mInjector.binderRestoreCallingIdentity(id); 4585 } 4586 return false; 4587 } 4588 4589 @Override 4590 public boolean removeKeyPair(ComponentName who, String alias) { 4591 enforceCanManageInstalledKeys(who); 4592 4593 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 4594 final long id = Binder.clearCallingIdentity(); 4595 try { 4596 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 4597 try { 4598 IKeyChainService keyChain = keyChainConnection.getService(); 4599 return keyChain.removeKeyPair(alias); 4600 } catch (RemoteException e) { 4601 Log.e(LOG_TAG, "Removing keypair", e); 4602 } finally { 4603 keyChainConnection.close(); 4604 } 4605 } catch (InterruptedException e) { 4606 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 4607 Thread.currentThread().interrupt(); 4608 } finally { 4609 Binder.restoreCallingIdentity(id); 4610 } 4611 return false; 4612 } 4613 4614 @Override 4615 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 4616 final IBinder response) { 4617 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 4618 if (!isCallerWithSystemUid()) { 4619 return; 4620 } 4621 4622 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 4623 // If there is a profile owner, redirect to that; otherwise query the device owner. 4624 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 4625 if (aliasChooser == null && caller.isSystem()) { 4626 ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 4627 if (deviceOwnerAdmin != null) { 4628 aliasChooser = deviceOwnerAdmin.info.getComponent(); 4629 } 4630 } 4631 if (aliasChooser == null) { 4632 sendPrivateKeyAliasResponse(null, response); 4633 return; 4634 } 4635 4636 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 4637 intent.setComponent(aliasChooser); 4638 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 4639 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 4640 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 4641 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 4642 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4643 4644 final long id = mInjector.binderClearCallingIdentity(); 4645 try { 4646 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 4647 @Override 4648 public void onReceive(Context context, Intent intent) { 4649 final String chosenAlias = getResultData(); 4650 sendPrivateKeyAliasResponse(chosenAlias, response); 4651 } 4652 }, null, Activity.RESULT_OK, null, null); 4653 } finally { 4654 mInjector.binderRestoreCallingIdentity(id); 4655 } 4656 } 4657 4658 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 4659 final IKeyChainAliasCallback keyChainAliasResponse = 4660 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 4661 new AsyncTask<Void, Void, Void>() { 4662 @Override 4663 protected Void doInBackground(Void... unused) { 4664 try { 4665 keyChainAliasResponse.alias(alias); 4666 } catch (Exception e) { 4667 // Catch everything (not just RemoteException): caller could throw a 4668 // RuntimeException back across processes. 4669 Log.e(LOG_TAG, "error while responding to callback", e); 4670 } 4671 return null; 4672 } 4673 }.execute(); 4674 } 4675 4676 @Override 4677 public void setCertInstallerPackage(ComponentName who, String installerPackage) 4678 throws SecurityException { 4679 int userHandle = UserHandle.getCallingUserId(); 4680 synchronized (this) { 4681 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4682 if (getTargetSdk(who.getPackageName(), userHandle) >= Build.VERSION_CODES.N) { 4683 if (installerPackage != null && 4684 !isPackageInstalledForUser(installerPackage, userHandle)) { 4685 throw new IllegalArgumentException("Package " + installerPackage 4686 + " is not installed on the current user"); 4687 } 4688 } 4689 DevicePolicyData policy = getUserData(userHandle); 4690 policy.mDelegatedCertInstallerPackage = installerPackage; 4691 saveSettingsLocked(userHandle); 4692 } 4693 } 4694 4695 @Override 4696 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 4697 int userHandle = UserHandle.getCallingUserId(); 4698 synchronized (this) { 4699 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4700 DevicePolicyData policy = getUserData(userHandle); 4701 return policy.mDelegatedCertInstallerPackage; 4702 } 4703 } 4704 4705 /** 4706 * @return {@code true} if the package is installed and set as always-on, {@code false} if it is 4707 * not installed and therefore not available. 4708 * 4709 * @throws SecurityException if the caller is not a profile or device owner. 4710 * @throws UnsupportedOperationException if the package does not support being set as always-on. 4711 */ 4712 @Override 4713 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage, boolean lockdown) 4714 throws SecurityException { 4715 synchronized (this) { 4716 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4717 } 4718 4719 final int userId = mInjector.userHandleGetCallingUserId(); 4720 final long token = mInjector.binderClearCallingIdentity(); 4721 try { 4722 if (vpnPackage != null && !isPackageInstalledForUser(vpnPackage, userId)) { 4723 return false; 4724 } 4725 ConnectivityManager connectivityManager = (ConnectivityManager) 4726 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4727 if (!connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage, lockdown)) { 4728 throw new UnsupportedOperationException(); 4729 } 4730 } finally { 4731 mInjector.binderRestoreCallingIdentity(token); 4732 } 4733 return true; 4734 } 4735 4736 @Override 4737 public String getAlwaysOnVpnPackage(ComponentName admin) 4738 throws SecurityException { 4739 synchronized (this) { 4740 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4741 } 4742 4743 final int userId = mInjector.userHandleGetCallingUserId(); 4744 final long token = mInjector.binderClearCallingIdentity(); 4745 try{ 4746 ConnectivityManager connectivityManager = (ConnectivityManager) 4747 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 4748 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 4749 } finally { 4750 mInjector.binderRestoreCallingIdentity(token); 4751 } 4752 } 4753 4754 private void wipeDataLocked(boolean wipeExtRequested, String reason, boolean force) { 4755 if (wipeExtRequested) { 4756 StorageManager sm = (StorageManager) mContext.getSystemService( 4757 Context.STORAGE_SERVICE); 4758 sm.wipeAdoptableDisks(); 4759 } 4760 try { 4761 RecoverySystem.rebootWipeUserData(mContext, false /* shutdown */, reason, force); 4762 } catch (IOException | SecurityException e) { 4763 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 4764 } 4765 } 4766 4767 @Override 4768 public void wipeData(int flags) { 4769 if (!mHasFeature) { 4770 return; 4771 } 4772 final int userHandle = mInjector.userHandleGetCallingUserId(); 4773 enforceFullCrossUsersPermission(userHandle); 4774 synchronized (this) { 4775 // This API can only be called by an active device admin, 4776 // so try to retrieve it to check that the caller is one. 4777 final ActiveAdmin admin = getActiveAdminForCallerLocked(null, 4778 DeviceAdminInfo.USES_POLICY_WIPE_DATA); 4779 4780 final String source = admin.info.getComponent().flattenToShortString(); 4781 4782 long ident = mInjector.binderClearCallingIdentity(); 4783 try { 4784 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 4785 if (!isDeviceOwner(admin.info.getComponent(), userHandle)) { 4786 throw new SecurityException( 4787 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 4788 } 4789 PersistentDataBlockManager manager = (PersistentDataBlockManager) 4790 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 4791 if (manager != null) { 4792 manager.wipe(); 4793 } 4794 } 4795 boolean wipeExtRequested = (flags & WIPE_EXTERNAL_STORAGE) != 0; 4796 // If the admin is the only one who has set the restriction: force wipe, even if 4797 // {@link UserManager.DISALLOW_FACTORY_RESET} is set. Reason is that the admin 4798 // could remove this user restriction anyway. 4799 boolean force = (userHandle == UserHandle.USER_SYSTEM) 4800 && isAdminOnlyOneWhoSetRestriction(admin, 4801 UserManager.DISALLOW_FACTORY_RESET, UserHandle.USER_SYSTEM); 4802 wipeDeviceOrUserLocked(wipeExtRequested, userHandle, 4803 "DevicePolicyManager.wipeData() from " + source, force); 4804 } finally { 4805 mInjector.binderRestoreCallingIdentity(ident); 4806 } 4807 } 4808 } 4809 4810 private boolean isAdminOnlyOneWhoSetRestriction(ActiveAdmin admin, String userRestriction, 4811 int userId) { 4812 int source = mUserManager.getUserRestrictionSource(userRestriction, UserHandle.of(userId)); 4813 if (isDeviceOwner(admin.info.getComponent(), userId)) { 4814 return source == UserManager.RESTRICTION_SOURCE_DEVICE_OWNER; 4815 } else if (isProfileOwner(admin.info.getComponent(), userId)) { 4816 return source == UserManager.RESTRICTION_SOURCE_PROFILE_OWNER; 4817 } 4818 return false; 4819 } 4820 4821 private void wipeDeviceOrUserLocked(boolean wipeExtRequested, final int userHandle, 4822 String reason, boolean force) { 4823 if (userHandle == UserHandle.USER_SYSTEM) { 4824 wipeDataLocked(wipeExtRequested, reason, force); 4825 } else { 4826 mHandler.post(new Runnable() { 4827 @Override 4828 public void run() { 4829 try { 4830 IActivityManager am = mInjector.getIActivityManager(); 4831 if (am.getCurrentUser().id == userHandle) { 4832 am.switchUser(UserHandle.USER_SYSTEM); 4833 } 4834 4835 boolean isManagedProfile = isManagedProfile(userHandle); 4836 if (!mUserManager.removeUser(userHandle)) { 4837 Slog.w(LOG_TAG, "Couldn't remove user " + userHandle); 4838 } else if (isManagedProfile) { 4839 sendWipeProfileNotification(); 4840 } 4841 } catch (RemoteException re) { 4842 // Shouldn't happen 4843 } 4844 } 4845 }); 4846 } 4847 } 4848 4849 private void sendWipeProfileNotification() { 4850 String contentText = mContext.getString(R.string.work_profile_deleted_description_dpm_wipe); 4851 Notification notification = new Notification.Builder(mContext) 4852 .setSmallIcon(android.R.drawable.stat_sys_warning) 4853 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 4854 .setContentText(contentText) 4855 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 4856 .setStyle(new Notification.BigTextStyle().bigText(contentText)) 4857 .build(); 4858 mInjector.getNotificationManager().notify(PROFILE_WIPED_NOTIFICATION_ID, notification); 4859 } 4860 4861 private void clearWipeProfileNotification() { 4862 mInjector.getNotificationManager().cancel(PROFILE_WIPED_NOTIFICATION_ID); 4863 } 4864 4865 @Override 4866 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 4867 if (!mHasFeature) { 4868 return; 4869 } 4870 enforceFullCrossUsersPermission(userHandle); 4871 mContext.enforceCallingOrSelfPermission( 4872 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4873 4874 synchronized (this) { 4875 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 4876 if (admin == null) { 4877 result.sendResult(null); 4878 return; 4879 } 4880 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 4881 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 4882 intent.setComponent(admin.info.getComponent()); 4883 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 4884 null, new BroadcastReceiver() { 4885 @Override 4886 public void onReceive(Context context, Intent intent) { 4887 result.sendResult(getResultExtras(false)); 4888 } 4889 }, null, Activity.RESULT_OK, null, null); 4890 } 4891 } 4892 4893 @Override 4894 public void setActivePasswordState(PasswordMetrics metrics, int userHandle) { 4895 if (!mHasFeature) { 4896 return; 4897 } 4898 enforceFullCrossUsersPermission(userHandle); 4899 4900 // Managed Profile password can only be changed when it has a separate challenge. 4901 if (!isSeparateProfileChallengeEnabled(userHandle)) { 4902 enforceNotManagedProfile(userHandle, "set the active password"); 4903 } 4904 4905 mContext.enforceCallingOrSelfPermission( 4906 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4907 validateQualityConstant(metrics.quality); 4908 4909 DevicePolicyData policy = getUserData(userHandle); 4910 4911 long ident = mInjector.binderClearCallingIdentity(); 4912 try { 4913 synchronized (this) { 4914 policy.mActivePasswordMetrics = metrics; 4915 policy.mFailedPasswordAttempts = 0; 4916 saveSettingsLocked(userHandle); 4917 updatePasswordExpirationsLocked(userHandle); 4918 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 4919 4920 // Send a broadcast to each profile using this password as its primary unlock. 4921 sendAdminCommandForLockscreenPoliciesLocked( 4922 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 4923 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userHandle); 4924 } 4925 removeCaApprovalsIfNeeded(userHandle); 4926 } finally { 4927 mInjector.binderRestoreCallingIdentity(ident); 4928 } 4929 } 4930 4931 /** 4932 * Called any time the device password is updated. Resets all password expiration clocks. 4933 */ 4934 private void updatePasswordExpirationsLocked(int userHandle) { 4935 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 4936 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 4937 userHandle, /* parent */ false); 4938 final int N = admins.size(); 4939 for (int i = 0; i < N; i++) { 4940 ActiveAdmin admin = admins.get(i); 4941 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 4942 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 4943 long timeout = admin.passwordExpirationTimeout; 4944 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 4945 admin.passwordExpirationDate = expiration; 4946 } 4947 } 4948 for (int affectedUserId : affectedUserIds) { 4949 saveSettingsLocked(affectedUserId); 4950 } 4951 } 4952 4953 @Override 4954 public void reportFailedPasswordAttempt(int userHandle) { 4955 enforceFullCrossUsersPermission(userHandle); 4956 if (!isSeparateProfileChallengeEnabled(userHandle)) { 4957 enforceNotManagedProfile(userHandle, 4958 "report failed password attempt if separate profile challenge is not in place"); 4959 } 4960 mContext.enforceCallingOrSelfPermission( 4961 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 4962 4963 final long ident = mInjector.binderClearCallingIdentity(); 4964 try { 4965 boolean wipeData = false; 4966 int identifier = 0; 4967 synchronized (this) { 4968 DevicePolicyData policy = getUserData(userHandle); 4969 policy.mFailedPasswordAttempts++; 4970 saveSettingsLocked(userHandle); 4971 if (mHasFeature) { 4972 ActiveAdmin strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4973 userHandle, /* parent */ false); 4974 int max = strictestAdmin != null 4975 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 4976 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 4977 // Wipe the user/profile associated with the policy that was violated. This 4978 // is not necessarily calling user: if the policy that fired was from a 4979 // managed profile rather than the main user profile, we wipe former only. 4980 wipeData = true; 4981 identifier = strictestAdmin.getUserHandle().getIdentifier(); 4982 } 4983 4984 sendAdminCommandForLockscreenPoliciesLocked( 4985 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 4986 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 4987 } 4988 } 4989 if (wipeData) { 4990 // Call without holding lock. 4991 wipeDeviceOrUserLocked(false, identifier, 4992 "reportFailedPasswordAttempt()", false); 4993 } 4994 } finally { 4995 mInjector.binderRestoreCallingIdentity(ident); 4996 } 4997 4998 if (mInjector.securityLogIsLoggingEnabled()) { 4999 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 5000 /*method strength*/ 1); 5001 } 5002 } 5003 5004 @Override 5005 public void reportSuccessfulPasswordAttempt(int userHandle) { 5006 enforceFullCrossUsersPermission(userHandle); 5007 mContext.enforceCallingOrSelfPermission( 5008 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5009 5010 synchronized (this) { 5011 DevicePolicyData policy = getUserData(userHandle); 5012 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 5013 long ident = mInjector.binderClearCallingIdentity(); 5014 try { 5015 policy.mFailedPasswordAttempts = 0; 5016 policy.mPasswordOwner = -1; 5017 saveSettingsLocked(userHandle); 5018 if (mHasFeature) { 5019 sendAdminCommandForLockscreenPoliciesLocked( 5020 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 5021 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 5022 } 5023 } finally { 5024 mInjector.binderRestoreCallingIdentity(ident); 5025 } 5026 } 5027 } 5028 5029 if (mInjector.securityLogIsLoggingEnabled()) { 5030 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5031 /*method strength*/ 1); 5032 } 5033 } 5034 5035 @Override 5036 public void reportFailedFingerprintAttempt(int userHandle) { 5037 enforceFullCrossUsersPermission(userHandle); 5038 mContext.enforceCallingOrSelfPermission( 5039 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5040 if (mInjector.securityLogIsLoggingEnabled()) { 5041 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 5042 /*method strength*/ 0); 5043 } 5044 } 5045 5046 @Override 5047 public void reportSuccessfulFingerprintAttempt(int userHandle) { 5048 enforceFullCrossUsersPermission(userHandle); 5049 mContext.enforceCallingOrSelfPermission( 5050 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5051 if (mInjector.securityLogIsLoggingEnabled()) { 5052 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 5053 /*method strength*/ 0); 5054 } 5055 } 5056 5057 @Override 5058 public void reportKeyguardDismissed(int userHandle) { 5059 enforceFullCrossUsersPermission(userHandle); 5060 mContext.enforceCallingOrSelfPermission( 5061 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5062 5063 if (mInjector.securityLogIsLoggingEnabled()) { 5064 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 5065 } 5066 } 5067 5068 @Override 5069 public void reportKeyguardSecured(int userHandle) { 5070 enforceFullCrossUsersPermission(userHandle); 5071 mContext.enforceCallingOrSelfPermission( 5072 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 5073 5074 if (mInjector.securityLogIsLoggingEnabled()) { 5075 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 5076 } 5077 } 5078 5079 @Override 5080 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 5081 String exclusionList) { 5082 if (!mHasFeature) { 5083 return null; 5084 } 5085 synchronized(this) { 5086 Preconditions.checkNotNull(who, "ComponentName is null"); 5087 5088 // Only check if system user has set global proxy. We don't allow other users to set it. 5089 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5090 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5091 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 5092 5093 // Scan through active admins and find if anyone has already 5094 // set the global proxy. 5095 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 5096 for (ComponentName component : compSet) { 5097 ActiveAdmin ap = policy.mAdminMap.get(component); 5098 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 5099 // Another admin already sets the global proxy 5100 // Return it to the caller. 5101 return component; 5102 } 5103 } 5104 5105 // If the user is not system, don't set the global proxy. Fail silently. 5106 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 5107 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 5108 + UserHandle.getCallingUserId() + " is not permitted."); 5109 return null; 5110 } 5111 if (proxySpec == null) { 5112 admin.specifiesGlobalProxy = false; 5113 admin.globalProxySpec = null; 5114 admin.globalProxyExclusionList = null; 5115 } else { 5116 5117 admin.specifiesGlobalProxy = true; 5118 admin.globalProxySpec = proxySpec; 5119 admin.globalProxyExclusionList = exclusionList; 5120 } 5121 5122 // Reset the global proxy accordingly 5123 // Do this using system permissions, as apps cannot write to secure settings 5124 long origId = mInjector.binderClearCallingIdentity(); 5125 try { 5126 resetGlobalProxyLocked(policy); 5127 } finally { 5128 mInjector.binderRestoreCallingIdentity(origId); 5129 } 5130 return null; 5131 } 5132 } 5133 5134 @Override 5135 public ComponentName getGlobalProxyAdmin(int userHandle) { 5136 if (!mHasFeature) { 5137 return null; 5138 } 5139 enforceFullCrossUsersPermission(userHandle); 5140 synchronized(this) { 5141 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5142 // Scan through active admins and find if anyone has already 5143 // set the global proxy. 5144 final int N = policy.mAdminList.size(); 5145 for (int i = 0; i < N; i++) { 5146 ActiveAdmin ap = policy.mAdminList.get(i); 5147 if (ap.specifiesGlobalProxy) { 5148 // Device admin sets the global proxy 5149 // Return it to the caller. 5150 return ap.info.getComponent(); 5151 } 5152 } 5153 } 5154 // No device admin sets the global proxy. 5155 return null; 5156 } 5157 5158 @Override 5159 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 5160 synchronized (this) { 5161 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5162 } 5163 long token = mInjector.binderClearCallingIdentity(); 5164 try { 5165 ConnectivityManager connectivityManager = (ConnectivityManager) 5166 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5167 connectivityManager.setGlobalProxy(proxyInfo); 5168 } finally { 5169 mInjector.binderRestoreCallingIdentity(token); 5170 } 5171 } 5172 5173 private void resetGlobalProxyLocked(DevicePolicyData policy) { 5174 final int N = policy.mAdminList.size(); 5175 for (int i = 0; i < N; i++) { 5176 ActiveAdmin ap = policy.mAdminList.get(i); 5177 if (ap.specifiesGlobalProxy) { 5178 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 5179 return; 5180 } 5181 } 5182 // No device admins defining global proxies - reset global proxy settings to none 5183 saveGlobalProxyLocked(null, null); 5184 } 5185 5186 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 5187 if (exclusionList == null) { 5188 exclusionList = ""; 5189 } 5190 if (proxySpec == null) { 5191 proxySpec = ""; 5192 } 5193 // Remove white spaces 5194 proxySpec = proxySpec.trim(); 5195 String data[] = proxySpec.split(":"); 5196 int proxyPort = 8080; 5197 if (data.length > 1) { 5198 try { 5199 proxyPort = Integer.parseInt(data[1]); 5200 } catch (NumberFormatException e) {} 5201 } 5202 exclusionList = exclusionList.trim(); 5203 5204 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 5205 if (!proxyProperties.isValid()) { 5206 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 5207 return; 5208 } 5209 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 5210 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 5211 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 5212 exclusionList); 5213 } 5214 5215 /** 5216 * Set the storage encryption request for a single admin. Returns the new total request 5217 * status (for all admins). 5218 */ 5219 @Override 5220 public int setStorageEncryption(ComponentName who, boolean encrypt) { 5221 if (!mHasFeature) { 5222 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5223 } 5224 Preconditions.checkNotNull(who, "ComponentName is null"); 5225 final int userHandle = UserHandle.getCallingUserId(); 5226 synchronized (this) { 5227 // Check for permissions 5228 // Only system user can set storage encryption 5229 if (userHandle != UserHandle.USER_SYSTEM) { 5230 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 5231 + UserHandle.getCallingUserId() + " is not permitted."); 5232 return 0; 5233 } 5234 5235 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5236 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 5237 5238 // Quick exit: If the filesystem does not support encryption, we can exit early. 5239 if (!isEncryptionSupported()) { 5240 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5241 } 5242 5243 // (1) Record the value for the admin so it's sticky 5244 if (ap.encryptionRequested != encrypt) { 5245 ap.encryptionRequested = encrypt; 5246 saveSettingsLocked(userHandle); 5247 } 5248 5249 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 5250 // (2) Compute "max" for all admins 5251 boolean newRequested = false; 5252 final int N = policy.mAdminList.size(); 5253 for (int i = 0; i < N; i++) { 5254 newRequested |= policy.mAdminList.get(i).encryptionRequested; 5255 } 5256 5257 // Notify OS of new request 5258 setEncryptionRequested(newRequested); 5259 5260 // Return the new global request status 5261 return newRequested 5262 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 5263 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5264 } 5265 } 5266 5267 /** 5268 * Get the current storage encryption request status for a given admin, or aggregate of all 5269 * active admins. 5270 */ 5271 @Override 5272 public boolean getStorageEncryption(ComponentName who, int userHandle) { 5273 if (!mHasFeature) { 5274 return false; 5275 } 5276 enforceFullCrossUsersPermission(userHandle); 5277 synchronized (this) { 5278 // Check for permissions if a particular caller is specified 5279 if (who != null) { 5280 // When checking for a single caller, status is based on caller's request 5281 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 5282 return ap != null ? ap.encryptionRequested : false; 5283 } 5284 5285 // If no particular caller is specified, return the aggregate set of requests. 5286 // This is short circuited by returning true on the first hit. 5287 DevicePolicyData policy = getUserData(userHandle); 5288 final int N = policy.mAdminList.size(); 5289 for (int i = 0; i < N; i++) { 5290 if (policy.mAdminList.get(i).encryptionRequested) { 5291 return true; 5292 } 5293 } 5294 return false; 5295 } 5296 } 5297 5298 /** 5299 * Get the current encryption status of the device. 5300 */ 5301 @Override 5302 public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) { 5303 if (!mHasFeature) { 5304 // Ok to return current status. 5305 } 5306 enforceFullCrossUsersPermission(userHandle); 5307 5308 // It's not critical here, but let's make sure the package name is correct, in case 5309 // we start using it for different purposes. 5310 ensureCallerPackage(callerPackage); 5311 5312 final ApplicationInfo ai; 5313 try { 5314 ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle); 5315 } catch (RemoteException e) { 5316 throw new SecurityException(e); 5317 } 5318 5319 boolean legacyApp = false; 5320 if (ai.targetSdkVersion <= Build.VERSION_CODES.M) { 5321 legacyApp = true; 5322 } 5323 5324 final int rawStatus = getEncryptionStatus(); 5325 if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) { 5326 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5327 } 5328 return rawStatus; 5329 } 5330 5331 /** 5332 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 5333 */ 5334 private boolean isEncryptionSupported() { 5335 // Note, this can be implemented as 5336 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5337 // But is provided as a separate internal method if there's a faster way to do a 5338 // simple check for supported-or-not. 5339 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5340 } 5341 5342 /** 5343 * Hook to low-levels: Reporting the current status of encryption. 5344 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 5345 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 5346 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, 5347 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or 5348 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 5349 */ 5350 private int getEncryptionStatus() { 5351 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 5352 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER; 5353 } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) { 5354 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 5355 } else if (mInjector.storageManagerIsEncrypted()) { 5356 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 5357 } else if (mInjector.storageManagerIsEncryptable()) { 5358 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 5359 } else { 5360 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 5361 } 5362 } 5363 5364 /** 5365 * Hook to low-levels: If needed, record the new admin setting for encryption. 5366 */ 5367 private void setEncryptionRequested(boolean encrypt) { 5368 } 5369 5370 /** 5371 * Set whether the screen capture is disabled for the user managed by the specified admin. 5372 */ 5373 @Override 5374 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 5375 if (!mHasFeature) { 5376 return; 5377 } 5378 Preconditions.checkNotNull(who, "ComponentName is null"); 5379 final int userHandle = UserHandle.getCallingUserId(); 5380 synchronized (this) { 5381 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5382 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5383 if (ap.disableScreenCapture != disabled) { 5384 ap.disableScreenCapture = disabled; 5385 saveSettingsLocked(userHandle); 5386 updateScreenCaptureDisabledInWindowManager(userHandle, disabled); 5387 } 5388 } 5389 } 5390 5391 /** 5392 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 5393 * active admin (if given admin is null). 5394 */ 5395 @Override 5396 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 5397 if (!mHasFeature) { 5398 return false; 5399 } 5400 synchronized (this) { 5401 if (who != null) { 5402 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5403 return (admin != null) ? admin.disableScreenCapture : false; 5404 } 5405 5406 DevicePolicyData policy = getUserData(userHandle); 5407 final int N = policy.mAdminList.size(); 5408 for (int i = 0; i < N; i++) { 5409 ActiveAdmin admin = policy.mAdminList.get(i); 5410 if (admin.disableScreenCapture) { 5411 return true; 5412 } 5413 } 5414 return false; 5415 } 5416 } 5417 5418 private void updateScreenCaptureDisabledInWindowManager(final int userHandle, 5419 final boolean disabled) { 5420 mHandler.post(new Runnable() { 5421 @Override 5422 public void run() { 5423 try { 5424 mInjector.getIWindowManager().setScreenCaptureDisabled(userHandle, disabled); 5425 } catch (RemoteException e) { 5426 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 5427 } 5428 } 5429 }); 5430 } 5431 5432 /** 5433 * Set whether auto time is required by the specified admin (must be device owner). 5434 */ 5435 @Override 5436 public void setAutoTimeRequired(ComponentName who, boolean required) { 5437 if (!mHasFeature) { 5438 return; 5439 } 5440 Preconditions.checkNotNull(who, "ComponentName is null"); 5441 final int userHandle = UserHandle.getCallingUserId(); 5442 synchronized (this) { 5443 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5444 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5445 if (admin.requireAutoTime != required) { 5446 admin.requireAutoTime = required; 5447 saveSettingsLocked(userHandle); 5448 } 5449 } 5450 5451 // Turn AUTO_TIME on in settings if it is required 5452 if (required) { 5453 long ident = mInjector.binderClearCallingIdentity(); 5454 try { 5455 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 5456 } finally { 5457 mInjector.binderRestoreCallingIdentity(ident); 5458 } 5459 } 5460 } 5461 5462 /** 5463 * Returns whether or not auto time is required by the device owner. 5464 */ 5465 @Override 5466 public boolean getAutoTimeRequired() { 5467 if (!mHasFeature) { 5468 return false; 5469 } 5470 synchronized (this) { 5471 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5472 return (deviceOwner != null) ? deviceOwner.requireAutoTime : false; 5473 } 5474 } 5475 5476 @Override 5477 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 5478 if (!mHasFeature) { 5479 return; 5480 } 5481 Preconditions.checkNotNull(who, "ComponentName is null"); 5482 // Allow setting this policy to true only if there is a split system user. 5483 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 5484 throw new UnsupportedOperationException( 5485 "Cannot force ephemeral users on systems without split system user."); 5486 } 5487 boolean removeAllUsers = false; 5488 synchronized (this) { 5489 final ActiveAdmin deviceOwner = 5490 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5491 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 5492 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 5493 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 5494 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 5495 removeAllUsers = forceEphemeralUsers; 5496 } 5497 } 5498 if (removeAllUsers) { 5499 long identitity = mInjector.binderClearCallingIdentity(); 5500 try { 5501 mUserManagerInternal.removeAllUsers(); 5502 } finally { 5503 mInjector.binderRestoreCallingIdentity(identitity); 5504 } 5505 } 5506 } 5507 5508 @Override 5509 public boolean getForceEphemeralUsers(ComponentName who) { 5510 if (!mHasFeature) { 5511 return false; 5512 } 5513 Preconditions.checkNotNull(who, "ComponentName is null"); 5514 synchronized (this) { 5515 final ActiveAdmin deviceOwner = 5516 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5517 return deviceOwner.forceEphemeralUsers; 5518 } 5519 } 5520 5521 private boolean isDeviceOwnerManagedSingleUserDevice() { 5522 synchronized (this) { 5523 if (!mOwners.hasDeviceOwner()) { 5524 return false; 5525 } 5526 } 5527 final long callingIdentity = mInjector.binderClearCallingIdentity(); 5528 try { 5529 if (mInjector.userManagerIsSplitSystemUser()) { 5530 // In split system user mode, only allow the case where the device owner is managing 5531 // the only non-system user of the device 5532 return (mUserManager.getUserCount() == 2 5533 && mOwners.getDeviceOwnerUserId() != UserHandle.USER_SYSTEM); 5534 } else { 5535 return mUserManager.getUserCount() == 1; 5536 } 5537 } finally { 5538 mInjector.binderRestoreCallingIdentity(callingIdentity); 5539 } 5540 } 5541 5542 private void ensureDeviceOwnerManagingSingleUser(ComponentName who) throws SecurityException { 5543 synchronized (this) { 5544 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5545 } 5546 if (!isDeviceOwnerManagedSingleUserDevice()) { 5547 throw new SecurityException( 5548 "There should only be one user, managed by Device Owner"); 5549 } 5550 } 5551 5552 @Override 5553 public boolean requestBugreport(ComponentName who) { 5554 if (!mHasFeature) { 5555 return false; 5556 } 5557 Preconditions.checkNotNull(who, "ComponentName is null"); 5558 ensureDeviceOwnerManagingSingleUser(who); 5559 5560 if (mRemoteBugreportServiceIsActive.get() 5561 || (getDeviceOwnerRemoteBugreportUri() != null)) { 5562 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 5563 return false; 5564 } 5565 5566 final long currentTime = System.currentTimeMillis(); 5567 synchronized (this) { 5568 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 5569 if (currentTime > policyData.mLastBugReportRequestTime) { 5570 policyData.mLastBugReportRequestTime = currentTime; 5571 saveSettingsLocked(UserHandle.USER_SYSTEM); 5572 } 5573 } 5574 5575 final long callingIdentity = mInjector.binderClearCallingIdentity(); 5576 try { 5577 mInjector.getIActivityManager().requestBugReport( 5578 ActivityManager.BUGREPORT_OPTION_REMOTE); 5579 5580 mRemoteBugreportServiceIsActive.set(true); 5581 mRemoteBugreportSharingAccepted.set(false); 5582 registerRemoteBugreportReceivers(); 5583 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5584 RemoteBugreportUtils.buildNotification(mContext, 5585 DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL); 5586 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 5587 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 5588 return true; 5589 } catch (RemoteException re) { 5590 // should never happen 5591 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 5592 return false; 5593 } finally { 5594 mInjector.binderRestoreCallingIdentity(callingIdentity); 5595 } 5596 } 5597 5598 synchronized void sendDeviceOwnerCommand(String action, Bundle extras) { 5599 Intent intent = new Intent(action); 5600 intent.setComponent(mOwners.getDeviceOwnerComponent()); 5601 if (extras != null) { 5602 intent.putExtras(extras); 5603 } 5604 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 5605 } 5606 5607 private synchronized String getDeviceOwnerRemoteBugreportUri() { 5608 return mOwners.getDeviceOwnerRemoteBugreportUri(); 5609 } 5610 5611 private synchronized void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 5612 String bugreportHash) { 5613 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 5614 } 5615 5616 private void registerRemoteBugreportReceivers() { 5617 try { 5618 IntentFilter filterFinished = new IntentFilter( 5619 DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH, 5620 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 5621 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 5622 } catch (IntentFilter.MalformedMimeTypeException e) { 5623 // should never happen, as setting a constant 5624 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 5625 } 5626 IntentFilter filterConsent = new IntentFilter(); 5627 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 5628 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 5629 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 5630 } 5631 5632 private void onBugreportFinished(Intent intent) { 5633 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 5634 mRemoteBugreportServiceIsActive.set(false); 5635 Uri bugreportUri = intent.getData(); 5636 String bugreportUriString = null; 5637 if (bugreportUri != null) { 5638 bugreportUriString = bugreportUri.toString(); 5639 } 5640 String bugreportHash = intent.getStringExtra( 5641 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH); 5642 if (mRemoteBugreportSharingAccepted.get()) { 5643 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 5644 mInjector.getNotificationManager().cancel(LOG_TAG, 5645 RemoteBugreportUtils.NOTIFICATION_ID); 5646 } else { 5647 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 5648 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5649 RemoteBugreportUtils.buildNotification(mContext, 5650 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 5651 UserHandle.ALL); 5652 } 5653 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5654 } 5655 5656 private void onBugreportFailed() { 5657 mRemoteBugreportServiceIsActive.set(false); 5658 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 5659 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 5660 mRemoteBugreportSharingAccepted.set(false); 5661 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5662 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 5663 Bundle extras = new Bundle(); 5664 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 5665 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 5666 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 5667 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 5668 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5669 } 5670 5671 private void onBugreportSharingAccepted() { 5672 mRemoteBugreportSharingAccepted.set(true); 5673 String bugreportUriString = null; 5674 String bugreportHash = null; 5675 synchronized (this) { 5676 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 5677 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 5678 } 5679 if (bugreportUriString != null) { 5680 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 5681 } else if (mRemoteBugreportServiceIsActive.get()) { 5682 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 5683 RemoteBugreportUtils.buildNotification(mContext, 5684 DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED), 5685 UserHandle.ALL); 5686 } 5687 } 5688 5689 private void onBugreportSharingDeclined() { 5690 if (mRemoteBugreportServiceIsActive.get()) { 5691 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 5692 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 5693 mRemoteBugreportServiceIsActive.set(false); 5694 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 5695 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 5696 } 5697 mRemoteBugreportSharingAccepted.set(false); 5698 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5699 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 5700 } 5701 5702 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 5703 String bugreportHash) { 5704 ParcelFileDescriptor pfd = null; 5705 try { 5706 if (bugreportUriString == null) { 5707 throw new FileNotFoundException(); 5708 } 5709 Uri bugreportUri = Uri.parse(bugreportUriString); 5710 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 5711 5712 synchronized (this) { 5713 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 5714 intent.setComponent(mOwners.getDeviceOwnerComponent()); 5715 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 5716 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 5717 mContext.grantUriPermission(mOwners.getDeviceOwnerComponent().getPackageName(), 5718 bugreportUri, Intent.FLAG_GRANT_READ_URI_PERMISSION); 5719 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 5720 } 5721 } catch (FileNotFoundException e) { 5722 Bundle extras = new Bundle(); 5723 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 5724 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 5725 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 5726 } finally { 5727 try { 5728 if (pfd != null) { 5729 pfd.close(); 5730 } 5731 } catch (IOException ex) { 5732 // Ignore 5733 } 5734 mRemoteBugreportSharingAccepted.set(false); 5735 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 5736 } 5737 } 5738 5739 /** 5740 * Disables all device cameras according to the specified admin. 5741 */ 5742 @Override 5743 public void setCameraDisabled(ComponentName who, boolean disabled) { 5744 if (!mHasFeature) { 5745 return; 5746 } 5747 Preconditions.checkNotNull(who, "ComponentName is null"); 5748 final int userHandle = mInjector.userHandleGetCallingUserId(); 5749 synchronized (this) { 5750 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5751 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 5752 if (ap.disableCamera != disabled) { 5753 ap.disableCamera = disabled; 5754 saveSettingsLocked(userHandle); 5755 } 5756 } 5757 // Tell the user manager that the restrictions have changed. 5758 pushUserRestrictions(userHandle); 5759 } 5760 5761 /** 5762 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 5763 * active admins. 5764 */ 5765 @Override 5766 public boolean getCameraDisabled(ComponentName who, int userHandle) { 5767 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 5768 } 5769 5770 private boolean getCameraDisabled(ComponentName who, int userHandle, 5771 boolean mergeDeviceOwnerRestriction) { 5772 if (!mHasFeature) { 5773 return false; 5774 } 5775 synchronized (this) { 5776 if (who != null) { 5777 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 5778 return (admin != null) ? admin.disableCamera : false; 5779 } 5780 // First, see if DO has set it. If so, it's device-wide. 5781 if (mergeDeviceOwnerRestriction) { 5782 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5783 if (deviceOwner != null && deviceOwner.disableCamera) { 5784 return true; 5785 } 5786 } 5787 5788 // Then check each device admin on the user. 5789 DevicePolicyData policy = getUserData(userHandle); 5790 // Determine whether or not the device camera is disabled for any active admins. 5791 final int N = policy.mAdminList.size(); 5792 for (int i = 0; i < N; i++) { 5793 ActiveAdmin admin = policy.mAdminList.get(i); 5794 if (admin.disableCamera) { 5795 return true; 5796 } 5797 } 5798 return false; 5799 } 5800 } 5801 5802 @Override 5803 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 5804 if (!mHasFeature) { 5805 return; 5806 } 5807 Preconditions.checkNotNull(who, "ComponentName is null"); 5808 final int userHandle = mInjector.userHandleGetCallingUserId(); 5809 if (isManagedProfile(userHandle)) { 5810 if (parent) { 5811 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 5812 } else { 5813 which = which & PROFILE_KEYGUARD_FEATURES; 5814 } 5815 } 5816 synchronized (this) { 5817 ActiveAdmin ap = getActiveAdminForCallerLocked( 5818 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 5819 if (ap.disabledKeyguardFeatures != which) { 5820 ap.disabledKeyguardFeatures = which; 5821 saveSettingsLocked(userHandle); 5822 } 5823 } 5824 } 5825 5826 /** 5827 * Gets the disabled state for features in keyguard for the given admin, 5828 * or the aggregate of all active admins if who is null. 5829 */ 5830 @Override 5831 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 5832 if (!mHasFeature) { 5833 return 0; 5834 } 5835 enforceFullCrossUsersPermission(userHandle); 5836 final long ident = mInjector.binderClearCallingIdentity(); 5837 try { 5838 synchronized (this) { 5839 if (who != null) { 5840 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 5841 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 5842 } 5843 5844 final List<ActiveAdmin> admins; 5845 if (!parent && isManagedProfile(userHandle)) { 5846 // If we are being asked about a managed profile, just return keyguard features 5847 // disabled by admins in the profile. 5848 admins = getUserDataUnchecked(userHandle).mAdminList; 5849 } else { 5850 // Otherwise return those set by admins in the user and its profiles. 5851 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 5852 } 5853 5854 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 5855 final int N = admins.size(); 5856 for (int i = 0; i < N; i++) { 5857 ActiveAdmin admin = admins.get(i); 5858 int userId = admin.getUserHandle().getIdentifier(); 5859 boolean isRequestedUser = !parent && (userId == userHandle); 5860 if (isRequestedUser || !isManagedProfile(userId)) { 5861 // If we are being asked explicitly about this user 5862 // return all disabled features even if its a managed profile. 5863 which |= admin.disabledKeyguardFeatures; 5864 } else { 5865 // Otherwise a managed profile is only allowed to disable 5866 // some features on the parent user. 5867 which |= (admin.disabledKeyguardFeatures 5868 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 5869 } 5870 } 5871 return which; 5872 } 5873 } finally { 5874 mInjector.binderRestoreCallingIdentity(ident); 5875 } 5876 } 5877 5878 @Override 5879 public void setKeepUninstalledPackages(ComponentName who, List<String> packageList) { 5880 if (!mHasFeature) { 5881 return; 5882 } 5883 Preconditions.checkNotNull(who, "ComponentName is null"); 5884 Preconditions.checkNotNull(packageList, "packageList is null"); 5885 final int userHandle = UserHandle.getCallingUserId(); 5886 synchronized (this) { 5887 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 5888 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5889 admin.keepUninstalledPackages = packageList; 5890 saveSettingsLocked(userHandle); 5891 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 5892 } 5893 } 5894 5895 @Override 5896 public List<String> getKeepUninstalledPackages(ComponentName who) { 5897 Preconditions.checkNotNull(who, "ComponentName is null"); 5898 if (!mHasFeature) { 5899 return null; 5900 } 5901 // TODO In split system user mode, allow apps on user 0 to query the list 5902 synchronized (this) { 5903 // Check if this is the device owner who is calling 5904 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5905 return getKeepUninstalledPackagesLocked(); 5906 } 5907 } 5908 5909 private List<String> getKeepUninstalledPackagesLocked() { 5910 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 5911 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 5912 } 5913 5914 @Override 5915 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 5916 if (!mHasFeature) { 5917 return false; 5918 } 5919 if (admin == null 5920 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 5921 throw new IllegalArgumentException("Invalid component " + admin 5922 + " for device owner"); 5923 } 5924 synchronized (this) { 5925 enforceCanSetDeviceOwnerLocked(admin, userId); 5926 if (getActiveAdminUncheckedLocked(admin, userId) == null 5927 || getUserData(userId).mRemovingAdmins.contains(admin)) { 5928 throw new IllegalArgumentException("Not active admin: " + admin); 5929 } 5930 5931 // Shutting down backup manager service permanently. 5932 long ident = mInjector.binderClearCallingIdentity(); 5933 try { 5934 if (mInjector.getIBackupManager() != null) { 5935 mInjector.getIBackupManager() 5936 .setBackupServiceActive(UserHandle.USER_SYSTEM, false); 5937 } 5938 } catch (RemoteException e) { 5939 throw new IllegalStateException("Failed deactivating backup service.", e); 5940 } finally { 5941 mInjector.binderRestoreCallingIdentity(ident); 5942 } 5943 5944 if (isAdb()) { 5945 // Log device owner provisioning was started using adb. 5946 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_DEVICE_OWNER); 5947 } 5948 5949 mOwners.setDeviceOwner(admin, ownerName, userId); 5950 mOwners.writeDeviceOwner(); 5951 updateDeviceOwnerLocked(); 5952 setDeviceOwnerSystemPropertyLocked(); 5953 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 5954 5955 ident = mInjector.binderClearCallingIdentity(); 5956 try { 5957 // TODO Send to system too? 5958 mContext.sendBroadcastAsUser(intent, new UserHandle(userId)); 5959 } finally { 5960 mInjector.binderRestoreCallingIdentity(ident); 5961 } 5962 Slog.i(LOG_TAG, "Device owner set: " + admin + " on user " + userId); 5963 return true; 5964 } 5965 } 5966 5967 boolean isDeviceOwner(ActiveAdmin admin) { 5968 return isDeviceOwner(admin.info.getComponent(), admin.getUserHandle().getIdentifier()); 5969 } 5970 5971 public boolean isDeviceOwner(ComponentName who, int userId) { 5972 synchronized (this) { 5973 return mOwners.hasDeviceOwner() 5974 && mOwners.getDeviceOwnerUserId() == userId 5975 && mOwners.getDeviceOwnerComponent().equals(who); 5976 } 5977 } 5978 5979 public boolean isProfileOwner(ComponentName who, int userId) { 5980 final ComponentName profileOwner = getProfileOwner(userId); 5981 return who != null && who.equals(profileOwner); 5982 } 5983 5984 @Override 5985 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 5986 if (!mHasFeature) { 5987 return null; 5988 } 5989 if (!callingUserOnly) { 5990 enforceManageUsers(); 5991 } 5992 synchronized (this) { 5993 if (!mOwners.hasDeviceOwner()) { 5994 return null; 5995 } 5996 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 5997 mOwners.getDeviceOwnerUserId()) { 5998 return null; 5999 } 6000 return mOwners.getDeviceOwnerComponent(); 6001 } 6002 } 6003 6004 @Override 6005 public int getDeviceOwnerUserId() { 6006 if (!mHasFeature) { 6007 return UserHandle.USER_NULL; 6008 } 6009 enforceManageUsers(); 6010 synchronized (this) { 6011 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 6012 } 6013 } 6014 6015 /** 6016 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 6017 * MANAGE_USERS. 6018 */ 6019 @Override 6020 public String getDeviceOwnerName() { 6021 if (!mHasFeature) { 6022 return null; 6023 } 6024 enforceManageUsers(); 6025 synchronized (this) { 6026 if (!mOwners.hasDeviceOwner()) { 6027 return null; 6028 } 6029 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 6030 // Should setDeviceOwner/ProfileOwner still take a name? 6031 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 6032 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 6033 } 6034 } 6035 6036 // Returns the active device owner or null if there is no device owner. 6037 @VisibleForTesting 6038 ActiveAdmin getDeviceOwnerAdminLocked() { 6039 ComponentName component = mOwners.getDeviceOwnerComponent(); 6040 if (component == null) { 6041 return null; 6042 } 6043 6044 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 6045 final int n = policy.mAdminList.size(); 6046 for (int i = 0; i < n; i++) { 6047 ActiveAdmin admin = policy.mAdminList.get(i); 6048 if (component.equals(admin.info.getComponent())) { 6049 return admin; 6050 } 6051 } 6052 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 6053 return null; 6054 } 6055 6056 @Override 6057 public void clearDeviceOwner(String packageName) { 6058 Preconditions.checkNotNull(packageName, "packageName is null"); 6059 final int callingUid = mInjector.binderGetCallingUid(); 6060 try { 6061 int uid = mContext.getPackageManager().getPackageUidAsUser(packageName, 6062 UserHandle.getUserId(callingUid)); 6063 if (uid != callingUid) { 6064 throw new SecurityException("Invalid packageName"); 6065 } 6066 } catch (NameNotFoundException e) { 6067 throw new SecurityException(e); 6068 } 6069 synchronized (this) { 6070 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 6071 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 6072 if (!mOwners.hasDeviceOwner() 6073 || !deviceOwnerComponent.getPackageName().equals(packageName) 6074 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 6075 throw new SecurityException( 6076 "clearDeviceOwner can only be called by the device owner"); 6077 } 6078 enforceUserUnlocked(deviceOwnerUserId); 6079 6080 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 6081 long ident = mInjector.binderClearCallingIdentity(); 6082 try { 6083 clearDeviceOwnerLocked(admin, deviceOwnerUserId); 6084 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 6085 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED); 6086 mContext.sendBroadcastAsUser(intent, UserHandle.of(deviceOwnerUserId)); 6087 } finally { 6088 mInjector.binderRestoreCallingIdentity(ident); 6089 } 6090 Slog.i(LOG_TAG, "Device owner removed: " + deviceOwnerComponent); 6091 } 6092 } 6093 6094 private void clearDeviceOwnerLocked(ActiveAdmin admin, int userId) { 6095 if (admin != null) { 6096 admin.disableCamera = false; 6097 admin.userRestrictions = null; 6098 admin.forceEphemeralUsers = false; 6099 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 6100 final DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 6101 policyData.mLastSecurityLogRetrievalTime = -1; 6102 policyData.mLastBugReportRequestTime = -1; 6103 policyData.mLastNetworkLogsRetrievalTime = -1; 6104 saveSettingsLocked(UserHandle.USER_SYSTEM); 6105 } 6106 clearUserPoliciesLocked(userId); 6107 6108 mOwners.clearDeviceOwner(); 6109 mOwners.writeDeviceOwner(); 6110 updateDeviceOwnerLocked(); 6111 disableDeviceOwnerManagedSingleUserFeaturesIfNeeded(); 6112 try { 6113 if (mInjector.getIBackupManager() != null) { 6114 // Reactivate backup service. 6115 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 6116 } 6117 } catch (RemoteException e) { 6118 throw new IllegalStateException("Failed reactivating backup service.", e); 6119 } 6120 } 6121 6122 @Override 6123 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 6124 if (!mHasFeature) { 6125 return false; 6126 } 6127 if (who == null 6128 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 6129 throw new IllegalArgumentException("Component " + who 6130 + " not installed for userId:" + userHandle); 6131 } 6132 synchronized (this) { 6133 enforceCanSetProfileOwnerLocked(who, userHandle); 6134 6135 if (getActiveAdminUncheckedLocked(who, userHandle) == null 6136 || getUserData(userHandle).mRemovingAdmins.contains(who)) { 6137 throw new IllegalArgumentException("Not active admin: " + who); 6138 } 6139 6140 if (isAdb()) { 6141 // Log profile owner provisioning was started using adb. 6142 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_PROFILE_OWNER); 6143 } 6144 6145 mOwners.setProfileOwner(who, ownerName, userHandle); 6146 mOwners.writeProfileOwner(userHandle); 6147 Slog.i(LOG_TAG, "Profile owner set: " + who + " on user " + userHandle); 6148 return true; 6149 } 6150 } 6151 6152 @Override 6153 public void clearProfileOwner(ComponentName who) { 6154 if (!mHasFeature) { 6155 return; 6156 } 6157 final UserHandle callingUser = mInjector.binderGetCallingUserHandle(); 6158 final int userId = callingUser.getIdentifier(); 6159 enforceNotManagedProfile(userId, "clear profile owner"); 6160 enforceUserUnlocked(userId); 6161 // Check if this is the profile owner who is calling 6162 final ActiveAdmin admin = 6163 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6164 synchronized (this) { 6165 final long ident = mInjector.binderClearCallingIdentity(); 6166 try { 6167 clearProfileOwnerLocked(admin, userId); 6168 removeActiveAdminLocked(who, userId); 6169 } finally { 6170 mInjector.binderRestoreCallingIdentity(ident); 6171 } 6172 Slog.i(LOG_TAG, "Profile owner " + who + " removed from user " + userId); 6173 } 6174 } 6175 6176 public void clearProfileOwnerLocked(ActiveAdmin admin, int userId) { 6177 if (admin != null) { 6178 admin.disableCamera = false; 6179 admin.userRestrictions = null; 6180 } 6181 clearUserPoliciesLocked(userId); 6182 mOwners.removeProfileOwner(userId); 6183 mOwners.writeProfileOwner(userId); 6184 } 6185 6186 @Override 6187 public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) { 6188 Preconditions.checkNotNull(who, "ComponentName is null"); 6189 if (!mHasFeature) { 6190 return; 6191 } 6192 6193 synchronized (this) { 6194 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6195 long token = mInjector.binderClearCallingIdentity(); 6196 try { 6197 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null); 6198 } finally { 6199 mInjector.binderRestoreCallingIdentity(token); 6200 } 6201 } 6202 } 6203 6204 @Override 6205 public CharSequence getDeviceOwnerLockScreenInfo() { 6206 return mLockPatternUtils.getDeviceOwnerInfo(); 6207 } 6208 6209 private void clearUserPoliciesLocked(int userId) { 6210 // Reset some of the user-specific policies 6211 DevicePolicyData policy = getUserData(userId); 6212 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 6213 policy.mDelegatedCertInstallerPackage = null; 6214 policy.mApplicationRestrictionsManagingPackage = null; 6215 policy.mStatusBarDisabled = false; 6216 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 6217 saveSettingsLocked(userId); 6218 6219 try { 6220 mIPackageManager.updatePermissionFlagsForAllApps( 6221 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 6222 0 /* flagValues */, userId); 6223 pushUserRestrictions(userId); 6224 } catch (RemoteException re) { 6225 // Shouldn't happen. 6226 } 6227 } 6228 6229 @Override 6230 public boolean hasUserSetupCompleted() { 6231 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 6232 } 6233 6234 // This checks only if the Setup Wizard has run. Since Wear devices pair before 6235 // completing Setup Wizard, and pairing involves transferring user data, calling 6236 // logic may want to check mIsWatch or mPaired in addition to hasUserSetupCompleted(). 6237 private boolean hasUserSetupCompleted(int userHandle) { 6238 if (!mHasFeature) { 6239 return true; 6240 } 6241 return getUserData(userHandle).mUserSetupComplete; 6242 } 6243 6244 private boolean hasPaired(int userHandle) { 6245 if (!mHasFeature) { 6246 return true; 6247 } 6248 return getUserData(userHandle).mPaired; 6249 } 6250 6251 @Override 6252 public int getUserProvisioningState() { 6253 if (!mHasFeature) { 6254 return DevicePolicyManager.STATE_USER_UNMANAGED; 6255 } 6256 int userHandle = mInjector.userHandleGetCallingUserId(); 6257 return getUserProvisioningState(userHandle); 6258 } 6259 6260 private int getUserProvisioningState(int userHandle) { 6261 return getUserData(userHandle).mUserProvisioningState; 6262 } 6263 6264 @Override 6265 public void setUserProvisioningState(int newState, int userHandle) { 6266 if (!mHasFeature) { 6267 return; 6268 } 6269 6270 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 6271 && getManagedUserId(userHandle) == -1) { 6272 // No managed device, user or profile, so setting provisioning state makes no sense. 6273 throw new IllegalStateException("Not allowed to change provisioning state unless a " 6274 + "device or profile owner is set."); 6275 } 6276 6277 synchronized (this) { 6278 boolean transitionCheckNeeded = true; 6279 6280 // Calling identity/permission checks. 6281 if (isAdb()) { 6282 // ADB shell can only move directly from un-managed to finalized as part of directly 6283 // setting profile-owner or device-owner. 6284 if (getUserProvisioningState(userHandle) != 6285 DevicePolicyManager.STATE_USER_UNMANAGED 6286 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6287 throw new IllegalStateException("Not allowed to change provisioning state " 6288 + "unless current provisioning state is unmanaged, and new state is " 6289 + "finalized."); 6290 } 6291 transitionCheckNeeded = false; 6292 } else { 6293 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 6294 enforceCanManageProfileAndDeviceOwners(); 6295 } 6296 6297 final DevicePolicyData policyData = getUserData(userHandle); 6298 if (transitionCheckNeeded) { 6299 // Optional state transition check for non-ADB case. 6300 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 6301 } 6302 policyData.mUserProvisioningState = newState; 6303 saveSettingsLocked(userHandle); 6304 } 6305 } 6306 6307 private void checkUserProvisioningStateTransition(int currentState, int newState) { 6308 // Valid transitions for normal use-cases. 6309 switch (currentState) { 6310 case DevicePolicyManager.STATE_USER_UNMANAGED: 6311 // Can move to any state from unmanaged (except itself as an edge case).. 6312 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 6313 return; 6314 } 6315 break; 6316 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 6317 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 6318 // Can only move to finalized from these states. 6319 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 6320 return; 6321 } 6322 break; 6323 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 6324 // Current user has a managed-profile, but current user is not managed, so 6325 // rather than moving to finalized state, go back to unmanaged once 6326 // profile provisioning is complete. 6327 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 6328 return; 6329 } 6330 break; 6331 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 6332 // Cannot transition out of finalized. 6333 break; 6334 } 6335 6336 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 6337 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 6338 + "from state [" + currentState + "]"); 6339 } 6340 6341 @Override 6342 public void setProfileEnabled(ComponentName who) { 6343 if (!mHasFeature) { 6344 return; 6345 } 6346 Preconditions.checkNotNull(who, "ComponentName is null"); 6347 synchronized (this) { 6348 // Check if this is the profile owner who is calling 6349 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6350 final int userId = UserHandle.getCallingUserId(); 6351 enforceManagedProfile(userId, "enable the profile"); 6352 // Check if the profile is already enabled. 6353 UserInfo managedProfile = getUserInfo(userId); 6354 if (managedProfile.isEnabled()) { 6355 Slog.e(LOG_TAG, 6356 "setProfileEnabled is called when the profile is already enabled"); 6357 return; 6358 } 6359 long id = mInjector.binderClearCallingIdentity(); 6360 try { 6361 mUserManager.setUserEnabled(userId); 6362 UserInfo parent = mUserManager.getProfileParent(userId); 6363 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 6364 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 6365 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 6366 Intent.FLAG_RECEIVER_FOREGROUND); 6367 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 6368 } finally { 6369 mInjector.binderRestoreCallingIdentity(id); 6370 } 6371 } 6372 } 6373 6374 @Override 6375 public void setProfileName(ComponentName who, String profileName) { 6376 Preconditions.checkNotNull(who, "ComponentName is null"); 6377 int userId = UserHandle.getCallingUserId(); 6378 // Check if this is the profile owner (includes device owner). 6379 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6380 6381 long id = mInjector.binderClearCallingIdentity(); 6382 try { 6383 mUserManager.setUserName(userId, profileName); 6384 } finally { 6385 mInjector.binderRestoreCallingIdentity(id); 6386 } 6387 } 6388 6389 @Override 6390 public ComponentName getProfileOwner(int userHandle) { 6391 if (!mHasFeature) { 6392 return null; 6393 } 6394 6395 synchronized (this) { 6396 return mOwners.getProfileOwnerComponent(userHandle); 6397 } 6398 } 6399 6400 // Returns the active profile owner for this user or null if the current user has no 6401 // profile owner. 6402 @VisibleForTesting 6403 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 6404 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 6405 if (profileOwner == null) { 6406 return null; 6407 } 6408 DevicePolicyData policy = getUserData(userHandle); 6409 final int n = policy.mAdminList.size(); 6410 for (int i = 0; i < n; i++) { 6411 ActiveAdmin admin = policy.mAdminList.get(i); 6412 if (profileOwner.equals(admin.info.getComponent())) { 6413 return admin; 6414 } 6415 } 6416 return null; 6417 } 6418 6419 @Override 6420 public String getProfileOwnerName(int userHandle) { 6421 if (!mHasFeature) { 6422 return null; 6423 } 6424 enforceManageUsers(); 6425 ComponentName profileOwner = getProfileOwner(userHandle); 6426 if (profileOwner == null) { 6427 return null; 6428 } 6429 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 6430 } 6431 6432 /** 6433 * Canonical name for a given package. 6434 */ 6435 private String getApplicationLabel(String packageName, int userHandle) { 6436 long token = mInjector.binderClearCallingIdentity(); 6437 try { 6438 final Context userContext; 6439 try { 6440 UserHandle handle = new UserHandle(userHandle); 6441 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 6442 } catch (PackageManager.NameNotFoundException nnfe) { 6443 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 6444 return null; 6445 } 6446 ApplicationInfo appInfo = userContext.getApplicationInfo(); 6447 CharSequence result = null; 6448 if (appInfo != null) { 6449 PackageManager pm = userContext.getPackageManager(); 6450 result = pm.getApplicationLabel(appInfo); 6451 } 6452 return result != null ? result.toString() : null; 6453 } finally { 6454 mInjector.binderRestoreCallingIdentity(token); 6455 } 6456 } 6457 6458 /** 6459 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 6460 * permission. 6461 * The profile owner can only be set before the user setup phase has completed, 6462 * except for: 6463 * - SYSTEM_UID 6464 * - adb if there are no accounts. (But see {@link #hasIncompatibleAccountsLocked}) 6465 */ 6466 private void enforceCanSetProfileOwnerLocked(@Nullable ComponentName owner, int userHandle) { 6467 UserInfo info = getUserInfo(userHandle); 6468 if (info == null) { 6469 // User doesn't exist. 6470 throw new IllegalArgumentException( 6471 "Attempted to set profile owner for invalid userId: " + userHandle); 6472 } 6473 if (info.isGuest()) { 6474 throw new IllegalStateException("Cannot set a profile owner on a guest"); 6475 } 6476 if (mOwners.hasProfileOwner(userHandle)) { 6477 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 6478 + "is already set."); 6479 } 6480 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 6481 throw new IllegalStateException("Trying to set the profile owner, but the user " 6482 + "already has a device owner."); 6483 } 6484 if (isAdb()) { 6485 if ((mIsWatch || hasUserSetupCompleted(userHandle)) 6486 && hasIncompatibleAccountsLocked(userHandle, owner)) { 6487 throw new IllegalStateException("Not allowed to set the profile owner because " 6488 + "there are already some accounts on the profile"); 6489 } 6490 return; 6491 } 6492 enforceCanManageProfileAndDeviceOwners(); 6493 if ((mIsWatch || hasUserSetupCompleted(userHandle)) && !isCallerWithSystemUid()) { 6494 throw new IllegalStateException("Cannot set the profile owner on a user which is " 6495 + "already set-up"); 6496 } 6497 } 6498 6499 /** 6500 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 6501 * permission. 6502 */ 6503 private void enforceCanSetDeviceOwnerLocked(@Nullable ComponentName owner, int userId) { 6504 if (!isAdb()) { 6505 enforceCanManageProfileAndDeviceOwners(); 6506 } 6507 6508 final int code = checkSetDeviceOwnerPreConditionLocked(owner, userId, isAdb()); 6509 switch (code) { 6510 case CODE_OK: 6511 return; 6512 case CODE_HAS_DEVICE_OWNER: 6513 throw new IllegalStateException( 6514 "Trying to set the device owner, but device owner is already set."); 6515 case CODE_USER_HAS_PROFILE_OWNER: 6516 throw new IllegalStateException("Trying to set the device owner, but the user " 6517 + "already has a profile owner."); 6518 case CODE_USER_NOT_RUNNING: 6519 throw new IllegalStateException("User not running: " + userId); 6520 case CODE_NOT_SYSTEM_USER: 6521 throw new IllegalStateException("User is not system user"); 6522 case CODE_USER_SETUP_COMPLETED: 6523 throw new IllegalStateException( 6524 "Cannot set the device owner if the device is already set-up"); 6525 case CODE_NONSYSTEM_USER_EXISTS: 6526 throw new IllegalStateException("Not allowed to set the device owner because there " 6527 + "are already several users on the device"); 6528 case CODE_ACCOUNTS_NOT_EMPTY: 6529 throw new IllegalStateException("Not allowed to set the device owner because there " 6530 + "are already some accounts on the device"); 6531 case CODE_HAS_PAIRED: 6532 throw new IllegalStateException("Not allowed to set the device owner because this " 6533 + "device has already paired"); 6534 default: 6535 throw new IllegalStateException("Unknown @DeviceOwnerPreConditionCode " + code); 6536 } 6537 } 6538 6539 private void enforceUserUnlocked(int userId) { 6540 // Since we're doing this operation on behalf of an app, we only 6541 // want to use the actual "unlocked" state. 6542 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 6543 "User must be running and unlocked"); 6544 } 6545 6546 private void enforceManageUsers() { 6547 final int callingUid = mInjector.binderGetCallingUid(); 6548 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 6549 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 6550 } 6551 } 6552 6553 private void enforceFullCrossUsersPermission(int userHandle) { 6554 enforceSystemUserOrPermission(userHandle, 6555 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 6556 } 6557 6558 private void enforceCrossUsersPermission(int userHandle) { 6559 enforceSystemUserOrPermission(userHandle, 6560 android.Manifest.permission.INTERACT_ACROSS_USERS); 6561 } 6562 6563 private void enforceSystemUserOrPermission(int userHandle, String permission) { 6564 if (userHandle < 0) { 6565 throw new IllegalArgumentException("Invalid userId " + userHandle); 6566 } 6567 final int callingUid = mInjector.binderGetCallingUid(); 6568 if (userHandle == UserHandle.getUserId(callingUid)) { 6569 return; 6570 } 6571 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 6572 mContext.enforceCallingOrSelfPermission(permission, 6573 "Must be system or have " + permission + " permission"); 6574 } 6575 } 6576 6577 private void enforceManagedProfile(int userHandle, String message) { 6578 if(!isManagedProfile(userHandle)) { 6579 throw new SecurityException("You can not " + message + " outside a managed profile."); 6580 } 6581 } 6582 6583 private void enforceNotManagedProfile(int userHandle, String message) { 6584 if(isManagedProfile(userHandle)) { 6585 throw new SecurityException("You can not " + message + " for a managed profile."); 6586 } 6587 } 6588 6589 private void enforceDeviceOwnerOrManageUsers() { 6590 synchronized (this) { 6591 if (getActiveAdminWithPolicyForUidLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 6592 mInjector.binderGetCallingUid()) != null) { 6593 return; 6594 } 6595 } 6596 enforceManageUsers(); 6597 } 6598 6599 private void ensureCallerPackage(@Nullable String packageName) { 6600 if (packageName == null) { 6601 Preconditions.checkState(isCallerWithSystemUid(), 6602 "Only caller can omit package name"); 6603 } else { 6604 final int callingUid = mInjector.binderGetCallingUid(); 6605 final int userId = mInjector.userHandleGetCallingUserId(); 6606 try { 6607 final ApplicationInfo ai = mIPackageManager.getApplicationInfo( 6608 packageName, 0, userId); 6609 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name"); 6610 } catch (RemoteException e) { 6611 // Shouldn't happen 6612 } 6613 } 6614 } 6615 6616 private boolean isCallerWithSystemUid() { 6617 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 6618 } 6619 6620 private int getProfileParentId(int userHandle) { 6621 final long ident = mInjector.binderClearCallingIdentity(); 6622 try { 6623 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 6624 return parentUser != null ? parentUser.id : userHandle; 6625 } finally { 6626 mInjector.binderRestoreCallingIdentity(ident); 6627 } 6628 } 6629 6630 private int getCredentialOwner(int userHandle, boolean parent) { 6631 final long ident = mInjector.binderClearCallingIdentity(); 6632 try { 6633 if (parent) { 6634 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 6635 if (parentProfile != null) { 6636 userHandle = parentProfile.id; 6637 } 6638 } 6639 return mUserManager.getCredentialOwnerProfile(userHandle); 6640 } finally { 6641 mInjector.binderRestoreCallingIdentity(ident); 6642 } 6643 } 6644 6645 private boolean isManagedProfile(int userHandle) { 6646 final UserInfo user = getUserInfo(userHandle); 6647 return user != null && user.isManagedProfile(); 6648 } 6649 6650 private void enableIfNecessary(String packageName, int userId) { 6651 try { 6652 ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 6653 PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, 6654 userId); 6655 if (ai.enabledSetting 6656 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 6657 mIPackageManager.setApplicationEnabledSetting(packageName, 6658 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 6659 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 6660 } 6661 } catch (RemoteException e) { 6662 } 6663 } 6664 6665 @Override 6666 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 6667 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 6668 != PackageManager.PERMISSION_GRANTED) { 6669 6670 pw.println("Permission Denial: can't dump DevicePolicyManagerService from from pid=" 6671 + mInjector.binderGetCallingPid() 6672 + ", uid=" + mInjector.binderGetCallingUid()); 6673 return; 6674 } 6675 6676 synchronized (this) { 6677 pw.println("Current Device Policy Manager state:"); 6678 mOwners.dump(" ", pw); 6679 int userCount = mUserData.size(); 6680 for (int u = 0; u < userCount; u++) { 6681 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 6682 pw.println(); 6683 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 6684 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 6685 final int N = policy.mAdminList.size(); 6686 for (int i=0; i<N; i++) { 6687 ActiveAdmin ap = policy.mAdminList.get(i); 6688 if (ap != null) { 6689 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 6690 pw.println(":"); 6691 ap.dump(" ", pw); 6692 } 6693 } 6694 if (!policy.mRemovingAdmins.isEmpty()) { 6695 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 6696 + policy.mRemovingAdmins); 6697 } 6698 6699 pw.println(" "); 6700 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 6701 } 6702 pw.println(); 6703 pw.println("Encryption Status: " + getEncryptionStatusName(getEncryptionStatus())); 6704 } 6705 } 6706 6707 private String getEncryptionStatusName(int encryptionStatus) { 6708 switch (encryptionStatus) { 6709 case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE: 6710 return "inactive"; 6711 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: 6712 return "block default key"; 6713 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE: 6714 return "block"; 6715 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER: 6716 return "per-user"; 6717 case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED: 6718 return "unsupported"; 6719 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING: 6720 return "activating"; 6721 default: 6722 return "unknown"; 6723 } 6724 } 6725 6726 @Override 6727 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 6728 ComponentName activity) { 6729 Preconditions.checkNotNull(who, "ComponentName is null"); 6730 final int userHandle = UserHandle.getCallingUserId(); 6731 synchronized (this) { 6732 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6733 6734 long id = mInjector.binderClearCallingIdentity(); 6735 try { 6736 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 6737 } catch (RemoteException re) { 6738 // Shouldn't happen 6739 } finally { 6740 mInjector.binderRestoreCallingIdentity(id); 6741 } 6742 } 6743 } 6744 6745 @Override 6746 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 6747 Preconditions.checkNotNull(who, "ComponentName is null"); 6748 final int userHandle = UserHandle.getCallingUserId(); 6749 synchronized (this) { 6750 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6751 6752 long id = mInjector.binderClearCallingIdentity(); 6753 try { 6754 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 6755 } catch (RemoteException re) { 6756 // Shouldn't happen 6757 } finally { 6758 mInjector.binderRestoreCallingIdentity(id); 6759 } 6760 } 6761 } 6762 6763 @Override 6764 public boolean setApplicationRestrictionsManagingPackage(ComponentName admin, 6765 String packageName) { 6766 Preconditions.checkNotNull(admin, "ComponentName is null"); 6767 6768 final int userHandle = mInjector.userHandleGetCallingUserId(); 6769 synchronized (this) { 6770 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6771 if (packageName != null && !isPackageInstalledForUser(packageName, userHandle)) { 6772 return false; 6773 } 6774 DevicePolicyData policy = getUserData(userHandle); 6775 policy.mApplicationRestrictionsManagingPackage = packageName; 6776 saveSettingsLocked(userHandle); 6777 return true; 6778 } 6779 } 6780 6781 @Override 6782 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 6783 Preconditions.checkNotNull(admin, "ComponentName is null"); 6784 6785 final int userHandle = mInjector.userHandleGetCallingUserId(); 6786 synchronized (this) { 6787 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6788 DevicePolicyData policy = getUserData(userHandle); 6789 return policy.mApplicationRestrictionsManagingPackage; 6790 } 6791 } 6792 6793 @Override 6794 public boolean isCallerApplicationRestrictionsManagingPackage() { 6795 final int callingUid = mInjector.binderGetCallingUid(); 6796 final int userHandle = UserHandle.getUserId(callingUid); 6797 synchronized (this) { 6798 final DevicePolicyData policy = getUserData(userHandle); 6799 if (policy.mApplicationRestrictionsManagingPackage == null) { 6800 return false; 6801 } 6802 6803 try { 6804 int uid = mContext.getPackageManager().getPackageUidAsUser( 6805 policy.mApplicationRestrictionsManagingPackage, userHandle); 6806 return uid == callingUid; 6807 } catch (NameNotFoundException e) { 6808 return false; 6809 } 6810 } 6811 } 6812 6813 private void enforceCanManageApplicationRestrictions(ComponentName who) { 6814 if (who != null) { 6815 synchronized (this) { 6816 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6817 } 6818 } else if (!isCallerApplicationRestrictionsManagingPackage()) { 6819 throw new SecurityException( 6820 "No admin component given, and caller cannot manage application restrictions " 6821 + "for other apps."); 6822 } 6823 } 6824 6825 @Override 6826 public void setApplicationRestrictions(ComponentName who, String packageName, Bundle settings) { 6827 enforceCanManageApplicationRestrictions(who); 6828 6829 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 6830 final long id = mInjector.binderClearCallingIdentity(); 6831 try { 6832 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 6833 } finally { 6834 mInjector.binderRestoreCallingIdentity(id); 6835 } 6836 } 6837 6838 @Override 6839 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 6840 PersistableBundle args, boolean parent) { 6841 if (!mHasFeature) { 6842 return; 6843 } 6844 Preconditions.checkNotNull(admin, "admin is null"); 6845 Preconditions.checkNotNull(agent, "agent is null"); 6846 final int userHandle = UserHandle.getCallingUserId(); 6847 synchronized (this) { 6848 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 6849 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 6850 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 6851 saveSettingsLocked(userHandle); 6852 } 6853 } 6854 6855 @Override 6856 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 6857 ComponentName agent, int userHandle, boolean parent) { 6858 if (!mHasFeature) { 6859 return null; 6860 } 6861 Preconditions.checkNotNull(agent, "agent null"); 6862 enforceFullCrossUsersPermission(userHandle); 6863 6864 synchronized (this) { 6865 final String componentName = agent.flattenToString(); 6866 if (admin != null) { 6867 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle, parent); 6868 if (ap == null) return null; 6869 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 6870 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 6871 List<PersistableBundle> result = new ArrayList<>(); 6872 result.add(trustAgentInfo.options); 6873 return result; 6874 } 6875 6876 // Return strictest policy for this user and profiles that are visible from this user. 6877 List<PersistableBundle> result = null; 6878 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 6879 // of the options. If any admin doesn't have options, discard options for the rest 6880 // and return null. 6881 List<ActiveAdmin> admins = 6882 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 6883 boolean allAdminsHaveOptions = true; 6884 final int N = admins.size(); 6885 for (int i = 0; i < N; i++) { 6886 final ActiveAdmin active = admins.get(i); 6887 6888 final boolean disablesTrust = (active.disabledKeyguardFeatures 6889 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 6890 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 6891 if (info != null && info.options != null && !info.options.isEmpty()) { 6892 if (disablesTrust) { 6893 if (result == null) { 6894 result = new ArrayList<>(); 6895 } 6896 result.add(info.options); 6897 } else { 6898 Log.w(LOG_TAG, "Ignoring admin " + active.info 6899 + " because it has trust options but doesn't declare " 6900 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 6901 } 6902 } else if (disablesTrust) { 6903 allAdminsHaveOptions = false; 6904 break; 6905 } 6906 } 6907 return allAdminsHaveOptions ? result : null; 6908 } 6909 } 6910 6911 @Override 6912 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 6913 Preconditions.checkNotNull(who, "ComponentName is null"); 6914 synchronized (this) { 6915 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6916 6917 int userHandle = UserHandle.getCallingUserId(); 6918 DevicePolicyData userData = getUserData(userHandle); 6919 userData.mRestrictionsProvider = permissionProvider; 6920 saveSettingsLocked(userHandle); 6921 } 6922 } 6923 6924 @Override 6925 public ComponentName getRestrictionsProvider(int userHandle) { 6926 synchronized (this) { 6927 if (!isCallerWithSystemUid()) { 6928 throw new SecurityException("Only the system can query the permission provider"); 6929 } 6930 DevicePolicyData userData = getUserData(userHandle); 6931 return userData != null ? userData.mRestrictionsProvider : null; 6932 } 6933 } 6934 6935 @Override 6936 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 6937 Preconditions.checkNotNull(who, "ComponentName is null"); 6938 int callingUserId = UserHandle.getCallingUserId(); 6939 synchronized (this) { 6940 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6941 6942 long id = mInjector.binderClearCallingIdentity(); 6943 try { 6944 UserInfo parent = mUserManager.getProfileParent(callingUserId); 6945 if (parent == null) { 6946 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 6947 + "parent"); 6948 return; 6949 } 6950 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 6951 mIPackageManager.addCrossProfileIntentFilter( 6952 filter, who.getPackageName(), callingUserId, parent.id, 0); 6953 } 6954 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 6955 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 6956 parent.id, callingUserId, 0); 6957 } 6958 } catch (RemoteException re) { 6959 // Shouldn't happen 6960 } finally { 6961 mInjector.binderRestoreCallingIdentity(id); 6962 } 6963 } 6964 } 6965 6966 @Override 6967 public void clearCrossProfileIntentFilters(ComponentName who) { 6968 Preconditions.checkNotNull(who, "ComponentName is null"); 6969 int callingUserId = UserHandle.getCallingUserId(); 6970 synchronized (this) { 6971 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6972 long id = mInjector.binderClearCallingIdentity(); 6973 try { 6974 UserInfo parent = mUserManager.getProfileParent(callingUserId); 6975 if (parent == null) { 6976 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 6977 + "parent"); 6978 return; 6979 } 6980 // Removing those that go from the managed profile to the parent. 6981 mIPackageManager.clearCrossProfileIntentFilters( 6982 callingUserId, who.getPackageName()); 6983 // And those that go from the parent to the managed profile. 6984 // If we want to support multiple managed profiles, we will have to only remove 6985 // those that have callingUserId as their target. 6986 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 6987 } catch (RemoteException re) { 6988 // Shouldn't happen 6989 } finally { 6990 mInjector.binderRestoreCallingIdentity(id); 6991 } 6992 } 6993 } 6994 6995 /** 6996 * @return true if all packages in enabledPackages are either in the list 6997 * permittedList or are a system app. 6998 */ 6999 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 7000 List<String> permittedList, int userIdToCheck) { 7001 long id = mInjector.binderClearCallingIdentity(); 7002 try { 7003 // If we have an enabled packages list for a managed profile the packages 7004 // we should check are installed for the parent user. 7005 UserInfo user = getUserInfo(userIdToCheck); 7006 if (user.isManagedProfile()) { 7007 userIdToCheck = user.profileGroupId; 7008 } 7009 7010 for (String enabledPackage : enabledPackages) { 7011 boolean systemService = false; 7012 try { 7013 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 7014 enabledPackage, PackageManager.GET_UNINSTALLED_PACKAGES, userIdToCheck); 7015 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 7016 } catch (RemoteException e) { 7017 Log.i(LOG_TAG, "Can't talk to package managed", e); 7018 } 7019 if (!systemService && !permittedList.contains(enabledPackage)) { 7020 return false; 7021 } 7022 } 7023 } finally { 7024 mInjector.binderRestoreCallingIdentity(id); 7025 } 7026 return true; 7027 } 7028 7029 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 7030 // Not using AccessibilityManager.getInstance because that guesses 7031 // at the user you require based on callingUid and caches for a given 7032 // process. 7033 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 7034 IAccessibilityManager service = iBinder == null 7035 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 7036 return new AccessibilityManager(mContext, service, userId); 7037 } 7038 7039 @Override 7040 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 7041 if (!mHasFeature) { 7042 return false; 7043 } 7044 Preconditions.checkNotNull(who, "ComponentName is null"); 7045 7046 if (packageList != null) { 7047 int userId = UserHandle.getCallingUserId(); 7048 List<AccessibilityServiceInfo> enabledServices = null; 7049 long id = mInjector.binderClearCallingIdentity(); 7050 try { 7051 UserInfo user = getUserInfo(userId); 7052 if (user.isManagedProfile()) { 7053 userId = user.profileGroupId; 7054 } 7055 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 7056 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 7057 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 7058 } finally { 7059 mInjector.binderRestoreCallingIdentity(id); 7060 } 7061 7062 if (enabledServices != null) { 7063 List<String> enabledPackages = new ArrayList<String>(); 7064 for (AccessibilityServiceInfo service : enabledServices) { 7065 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 7066 } 7067 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7068 userId)) { 7069 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 7070 + "because it contains already enabled accesibility services."); 7071 return false; 7072 } 7073 } 7074 } 7075 7076 synchronized (this) { 7077 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7078 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7079 admin.permittedAccessiblityServices = packageList; 7080 saveSettingsLocked(UserHandle.getCallingUserId()); 7081 } 7082 return true; 7083 } 7084 7085 @Override 7086 public List getPermittedAccessibilityServices(ComponentName who) { 7087 if (!mHasFeature) { 7088 return null; 7089 } 7090 Preconditions.checkNotNull(who, "ComponentName is null"); 7091 7092 synchronized (this) { 7093 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7094 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7095 return admin.permittedAccessiblityServices; 7096 } 7097 } 7098 7099 @Override 7100 public List getPermittedAccessibilityServicesForUser(int userId) { 7101 if (!mHasFeature) { 7102 return null; 7103 } 7104 synchronized (this) { 7105 List<String> result = null; 7106 // If we have multiple profiles we return the intersection of the 7107 // permitted lists. This can happen in cases where we have a device 7108 // and profile owner. 7109 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 7110 for (int profileId : profileIds) { 7111 // Just loop though all admins, only device or profiles 7112 // owners can have permitted lists set. 7113 DevicePolicyData policy = getUserDataUnchecked(profileId); 7114 final int N = policy.mAdminList.size(); 7115 for (int j = 0; j < N; j++) { 7116 ActiveAdmin admin = policy.mAdminList.get(j); 7117 List<String> fromAdmin = admin.permittedAccessiblityServices; 7118 if (fromAdmin != null) { 7119 if (result == null) { 7120 result = new ArrayList<>(fromAdmin); 7121 } else { 7122 result.retainAll(fromAdmin); 7123 } 7124 } 7125 } 7126 } 7127 7128 // If we have a permitted list add all system accessibility services. 7129 if (result != null) { 7130 long id = mInjector.binderClearCallingIdentity(); 7131 try { 7132 UserInfo user = getUserInfo(userId); 7133 if (user.isManagedProfile()) { 7134 userId = user.profileGroupId; 7135 } 7136 AccessibilityManager accessibilityManager = 7137 getAccessibilityManagerForUser(userId); 7138 List<AccessibilityServiceInfo> installedServices = 7139 accessibilityManager.getInstalledAccessibilityServiceList(); 7140 7141 if (installedServices != null) { 7142 for (AccessibilityServiceInfo service : installedServices) { 7143 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 7144 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7145 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7146 result.add(serviceInfo.packageName); 7147 } 7148 } 7149 } 7150 } finally { 7151 mInjector.binderRestoreCallingIdentity(id); 7152 } 7153 } 7154 7155 return result; 7156 } 7157 } 7158 7159 @Override 7160 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 7161 int userHandle) { 7162 if (!mHasFeature) { 7163 return true; 7164 } 7165 Preconditions.checkNotNull(who, "ComponentName is null"); 7166 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7167 if (!isCallerWithSystemUid()){ 7168 throw new SecurityException( 7169 "Only the system can query if an accessibility service is disabled by admin"); 7170 } 7171 synchronized (this) { 7172 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7173 if (admin == null) { 7174 return false; 7175 } 7176 if (admin.permittedAccessiblityServices == null) { 7177 return true; 7178 } 7179 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 7180 admin.permittedAccessiblityServices, userHandle); 7181 } 7182 } 7183 7184 private boolean checkCallerIsCurrentUserOrProfile() { 7185 int callingUserId = UserHandle.getCallingUserId(); 7186 long token = mInjector.binderClearCallingIdentity(); 7187 try { 7188 UserInfo currentUser; 7189 UserInfo callingUser = getUserInfo(callingUserId); 7190 try { 7191 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7192 } catch (RemoteException e) { 7193 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 7194 return false; 7195 } 7196 7197 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 7198 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 7199 + "of a user that isn't the foreground user."); 7200 return false; 7201 } 7202 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 7203 Slog.e(LOG_TAG, "Cannot set permitted input methods " 7204 + "of a user that isn't the foreground user."); 7205 return false; 7206 } 7207 } finally { 7208 mInjector.binderRestoreCallingIdentity(token); 7209 } 7210 return true; 7211 } 7212 7213 @Override 7214 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 7215 if (!mHasFeature) { 7216 return false; 7217 } 7218 Preconditions.checkNotNull(who, "ComponentName is null"); 7219 7220 // TODO When InputMethodManager supports per user calls remove 7221 // this restriction. 7222 if (!checkCallerIsCurrentUserOrProfile()) { 7223 return false; 7224 } 7225 7226 if (packageList != null) { 7227 // InputMethodManager fetches input methods for current user. 7228 // So this can only be set when calling user is the current user 7229 // or parent is current user in case of managed profiles. 7230 InputMethodManager inputMethodManager = 7231 mContext.getSystemService(InputMethodManager.class); 7232 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 7233 7234 if (enabledImes != null) { 7235 List<String> enabledPackages = new ArrayList<String>(); 7236 for (InputMethodInfo ime : enabledImes) { 7237 enabledPackages.add(ime.getPackageName()); 7238 } 7239 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 7240 mInjector.binderGetCallingUserHandle().getIdentifier())) { 7241 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 7242 + "because it contains already enabled input method."); 7243 return false; 7244 } 7245 } 7246 } 7247 7248 synchronized (this) { 7249 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7250 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7251 admin.permittedInputMethods = packageList; 7252 saveSettingsLocked(UserHandle.getCallingUserId()); 7253 } 7254 return true; 7255 } 7256 7257 @Override 7258 public List getPermittedInputMethods(ComponentName who) { 7259 if (!mHasFeature) { 7260 return null; 7261 } 7262 Preconditions.checkNotNull(who, "ComponentName is null"); 7263 7264 synchronized (this) { 7265 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7266 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7267 return admin.permittedInputMethods; 7268 } 7269 } 7270 7271 @Override 7272 public List getPermittedInputMethodsForCurrentUser() { 7273 UserInfo currentUser; 7274 try { 7275 currentUser = mInjector.getIActivityManager().getCurrentUser(); 7276 } catch (RemoteException e) { 7277 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 7278 // Activity managed is dead, just allow all IMEs 7279 return null; 7280 } 7281 7282 int userId = currentUser.id; 7283 synchronized (this) { 7284 List<String> result = null; 7285 // If we have multiple profiles we return the intersection of the 7286 // permitted lists. This can happen in cases where we have a device 7287 // and profile owner. 7288 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 7289 for (int profileId : profileIds) { 7290 // Just loop though all admins, only device or profiles 7291 // owners can have permitted lists set. 7292 DevicePolicyData policy = getUserDataUnchecked(profileId); 7293 final int N = policy.mAdminList.size(); 7294 for (int j = 0; j < N; j++) { 7295 ActiveAdmin admin = policy.mAdminList.get(j); 7296 List<String> fromAdmin = admin.permittedInputMethods; 7297 if (fromAdmin != null) { 7298 if (result == null) { 7299 result = new ArrayList<String>(fromAdmin); 7300 } else { 7301 result.retainAll(fromAdmin); 7302 } 7303 } 7304 } 7305 } 7306 7307 // If we have a permitted list add all system input methods. 7308 if (result != null) { 7309 InputMethodManager inputMethodManager = 7310 mContext.getSystemService(InputMethodManager.class); 7311 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 7312 long id = mInjector.binderClearCallingIdentity(); 7313 try { 7314 if (imes != null) { 7315 for (InputMethodInfo ime : imes) { 7316 ServiceInfo serviceInfo = ime.getServiceInfo(); 7317 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 7318 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 7319 result.add(serviceInfo.packageName); 7320 } 7321 } 7322 } 7323 } finally { 7324 mInjector.binderRestoreCallingIdentity(id); 7325 } 7326 } 7327 return result; 7328 } 7329 } 7330 7331 @Override 7332 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 7333 int userHandle) { 7334 if (!mHasFeature) { 7335 return true; 7336 } 7337 Preconditions.checkNotNull(who, "ComponentName is null"); 7338 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 7339 if (!isCallerWithSystemUid()) { 7340 throw new SecurityException( 7341 "Only the system can query if an input method is disabled by admin"); 7342 } 7343 synchronized (this) { 7344 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7345 if (admin == null) { 7346 return false; 7347 } 7348 if (admin.permittedInputMethods == null) { 7349 return true; 7350 } 7351 return checkPackagesInPermittedListOrSystem(Arrays.asList(packageName), 7352 admin.permittedInputMethods, userHandle); 7353 } 7354 } 7355 7356 private void sendAdminEnabledBroadcastLocked(int userHandle) { 7357 DevicePolicyData policyData = getUserData(userHandle); 7358 if (policyData.mAdminBroadcastPending) { 7359 // Send the initialization data to profile owner and delete the data 7360 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 7361 if (admin != null) { 7362 PersistableBundle initBundle = policyData.mInitBundle; 7363 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 7364 initBundle == null ? null : new Bundle(initBundle), null); 7365 } 7366 policyData.mInitBundle = null; 7367 policyData.mAdminBroadcastPending = false; 7368 saveSettingsLocked(userHandle); 7369 } 7370 } 7371 7372 @Override 7373 public UserHandle createAndManageUser(ComponentName admin, String name, 7374 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 7375 Preconditions.checkNotNull(admin, "admin is null"); 7376 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 7377 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 7378 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 7379 + admin + " are not in the same package"); 7380 } 7381 // Only allow the system user to use this method 7382 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 7383 throw new SecurityException("createAndManageUser was called from non-system user"); 7384 } 7385 if (!mInjector.userManagerIsSplitSystemUser() 7386 && (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 7387 throw new IllegalArgumentException( 7388 "Ephemeral users are only supported on systems with a split system user."); 7389 } 7390 // Create user. 7391 UserHandle user = null; 7392 synchronized (this) { 7393 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7394 7395 final long id = mInjector.binderClearCallingIdentity(); 7396 try { 7397 int userInfoFlags = 0; 7398 if ((flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0) { 7399 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 7400 } 7401 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 7402 userInfoFlags); 7403 if (userInfo != null) { 7404 user = userInfo.getUserHandle(); 7405 } 7406 } finally { 7407 mInjector.binderRestoreCallingIdentity(id); 7408 } 7409 } 7410 if (user == null) { 7411 return null; 7412 } 7413 // Set admin. 7414 final long id = mInjector.binderClearCallingIdentity(); 7415 try { 7416 final String adminPkg = admin.getPackageName(); 7417 7418 final int userHandle = user.getIdentifier(); 7419 try { 7420 // Install the profile owner if not present. 7421 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 7422 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle); 7423 } 7424 } catch (RemoteException e) { 7425 Slog.e(LOG_TAG, "Failed to make remote calls for createAndManageUser, " 7426 + "removing created user", e); 7427 mUserManager.removeUser(user.getIdentifier()); 7428 return null; 7429 } 7430 7431 setActiveAdmin(profileOwner, true, userHandle); 7432 // User is not started yet, the broadcast by setActiveAdmin will not be received. 7433 // So we store adminExtras for broadcasting when the user starts for first time. 7434 synchronized(this) { 7435 DevicePolicyData policyData = getUserData(userHandle); 7436 policyData.mInitBundle = adminExtras; 7437 policyData.mAdminBroadcastPending = true; 7438 saveSettingsLocked(userHandle); 7439 } 7440 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 7441 setProfileOwner(profileOwner, ownerName, userHandle); 7442 7443 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 7444 Settings.Secure.putIntForUser(mContext.getContentResolver(), 7445 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 7446 } 7447 7448 return user; 7449 } finally { 7450 mInjector.binderRestoreCallingIdentity(id); 7451 } 7452 } 7453 7454 @Override 7455 public boolean removeUser(ComponentName who, UserHandle userHandle) { 7456 Preconditions.checkNotNull(who, "ComponentName is null"); 7457 UserHandle callingUserHandle = mInjector.binderGetCallingUserHandle(); 7458 synchronized (this) { 7459 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7460 } 7461 final long id = mInjector.binderClearCallingIdentity(); 7462 try { 7463 int restrictionSource = mUserManager.getUserRestrictionSource( 7464 UserManager.DISALLOW_REMOVE_USER, callingUserHandle); 7465 if (restrictionSource != UserManager.RESTRICTION_NOT_SET 7466 && restrictionSource != UserManager.RESTRICTION_SOURCE_DEVICE_OWNER) { 7467 Log.w(LOG_TAG, "The device owner cannot remove a user because " 7468 + "DISALLOW_REMOVE_USER is enabled, and was not set by the device " 7469 + "owner"); 7470 return false; 7471 } 7472 return mUserManagerInternal.removeUserEvenWhenDisallowed( 7473 userHandle.getIdentifier()); 7474 } finally { 7475 mInjector.binderRestoreCallingIdentity(id); 7476 } 7477 } 7478 7479 @Override 7480 public boolean switchUser(ComponentName who, UserHandle userHandle) { 7481 Preconditions.checkNotNull(who, "ComponentName is null"); 7482 synchronized (this) { 7483 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7484 7485 long id = mInjector.binderClearCallingIdentity(); 7486 try { 7487 int userId = UserHandle.USER_SYSTEM; 7488 if (userHandle != null) { 7489 userId = userHandle.getIdentifier(); 7490 } 7491 return mInjector.getIActivityManager().switchUser(userId); 7492 } catch (RemoteException e) { 7493 Log.e(LOG_TAG, "Couldn't switch user", e); 7494 return false; 7495 } finally { 7496 mInjector.binderRestoreCallingIdentity(id); 7497 } 7498 } 7499 } 7500 7501 @Override 7502 public Bundle getApplicationRestrictions(ComponentName who, String packageName) { 7503 enforceCanManageApplicationRestrictions(who); 7504 7505 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 7506 final long id = mInjector.binderClearCallingIdentity(); 7507 try { 7508 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 7509 // if no restrictions were saved, mUserManager.getApplicationRestrictions 7510 // returns null, but DPM method should return an empty Bundle as per JavaDoc 7511 return bundle != null ? bundle : Bundle.EMPTY; 7512 } finally { 7513 mInjector.binderRestoreCallingIdentity(id); 7514 } 7515 } 7516 7517 @Override 7518 public String[] setPackagesSuspended(ComponentName who, String[] packageNames, 7519 boolean suspended) { 7520 Preconditions.checkNotNull(who, "ComponentName is null"); 7521 int callingUserId = UserHandle.getCallingUserId(); 7522 synchronized (this) { 7523 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7524 7525 long id = mInjector.binderClearCallingIdentity(); 7526 try { 7527 return mIPackageManager.setPackagesSuspendedAsUser( 7528 packageNames, suspended, callingUserId); 7529 } catch (RemoteException re) { 7530 // Shouldn't happen. 7531 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 7532 } finally { 7533 mInjector.binderRestoreCallingIdentity(id); 7534 } 7535 return packageNames; 7536 } 7537 } 7538 7539 @Override 7540 public boolean isPackageSuspended(ComponentName who, String packageName) { 7541 Preconditions.checkNotNull(who, "ComponentName is null"); 7542 int callingUserId = UserHandle.getCallingUserId(); 7543 synchronized (this) { 7544 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7545 7546 long id = mInjector.binderClearCallingIdentity(); 7547 try { 7548 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 7549 } catch (RemoteException re) { 7550 // Shouldn't happen. 7551 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 7552 } finally { 7553 mInjector.binderRestoreCallingIdentity(id); 7554 } 7555 return false; 7556 } 7557 } 7558 7559 @Override 7560 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 7561 Preconditions.checkNotNull(who, "ComponentName is null"); 7562 if (!UserRestrictionsUtils.isValidRestriction(key)) { 7563 return; 7564 } 7565 7566 final int userHandle = mInjector.userHandleGetCallingUserId(); 7567 synchronized (this) { 7568 ActiveAdmin activeAdmin = 7569 getActiveAdminForCallerLocked(who, 7570 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7571 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 7572 if (isDeviceOwner) { 7573 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 7574 throw new SecurityException("Device owner cannot set user restriction " + key); 7575 } 7576 } else { // profile owner 7577 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 7578 throw new SecurityException("Profile owner cannot set user restriction " + key); 7579 } 7580 } 7581 7582 // Save the restriction to ActiveAdmin. 7583 activeAdmin.ensureUserRestrictions().putBoolean(key, enabledFromThisOwner); 7584 saveSettingsLocked(userHandle); 7585 7586 pushUserRestrictions(userHandle); 7587 7588 sendChangedNotification(userHandle); 7589 } 7590 } 7591 7592 private void pushUserRestrictions(int userId) { 7593 synchronized (this) { 7594 final Bundle global; 7595 final Bundle local = new Bundle(); 7596 if (mOwners.isDeviceOwnerUserId(userId)) { 7597 global = new Bundle(); 7598 7599 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 7600 if (deviceOwner == null) { 7601 return; // Shouldn't happen. 7602 } 7603 7604 UserRestrictionsUtils.sortToGlobalAndLocal(deviceOwner.userRestrictions, 7605 global, local); 7606 // DO can disable camera globally. 7607 if (deviceOwner.disableCamera) { 7608 global.putBoolean(UserManager.DISALLOW_CAMERA, true); 7609 } 7610 } else { 7611 global = null; 7612 7613 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 7614 if (profileOwner != null) { 7615 UserRestrictionsUtils.merge(local, profileOwner.userRestrictions); 7616 } 7617 } 7618 // Also merge in *local* camera restriction. 7619 if (getCameraDisabled(/* who= */ null, 7620 userId, /* mergeDeviceOwnerRestriction= */ false)) { 7621 local.putBoolean(UserManager.DISALLOW_CAMERA, true); 7622 } 7623 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, local, global); 7624 } 7625 } 7626 7627 @Override 7628 public Bundle getUserRestrictions(ComponentName who) { 7629 if (!mHasFeature) { 7630 return null; 7631 } 7632 Preconditions.checkNotNull(who, "ComponentName is null"); 7633 synchronized (this) { 7634 final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who, 7635 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7636 return activeAdmin.userRestrictions; 7637 } 7638 } 7639 7640 @Override 7641 public boolean setApplicationHidden(ComponentName who, String packageName, 7642 boolean hidden) { 7643 Preconditions.checkNotNull(who, "ComponentName is null"); 7644 int callingUserId = UserHandle.getCallingUserId(); 7645 synchronized (this) { 7646 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7647 7648 long id = mInjector.binderClearCallingIdentity(); 7649 try { 7650 return mIPackageManager.setApplicationHiddenSettingAsUser( 7651 packageName, hidden, callingUserId); 7652 } catch (RemoteException re) { 7653 // shouldn't happen 7654 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 7655 } finally { 7656 mInjector.binderRestoreCallingIdentity(id); 7657 } 7658 return false; 7659 } 7660 } 7661 7662 @Override 7663 public boolean isApplicationHidden(ComponentName who, String packageName) { 7664 Preconditions.checkNotNull(who, "ComponentName is null"); 7665 int callingUserId = UserHandle.getCallingUserId(); 7666 synchronized (this) { 7667 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7668 7669 long id = mInjector.binderClearCallingIdentity(); 7670 try { 7671 return mIPackageManager.getApplicationHiddenSettingAsUser( 7672 packageName, callingUserId); 7673 } catch (RemoteException re) { 7674 // shouldn't happen 7675 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 7676 } finally { 7677 mInjector.binderRestoreCallingIdentity(id); 7678 } 7679 return false; 7680 } 7681 } 7682 7683 @Override 7684 public void enableSystemApp(ComponentName who, String packageName) { 7685 Preconditions.checkNotNull(who, "ComponentName is null"); 7686 synchronized (this) { 7687 // This API can only be called by an active device admin, 7688 // so try to retrieve it to check that the caller is one. 7689 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7690 7691 int userId = UserHandle.getCallingUserId(); 7692 long id = mInjector.binderClearCallingIdentity(); 7693 7694 try { 7695 if (VERBOSE_LOG) { 7696 Slog.v(LOG_TAG, "installing " + packageName + " for " 7697 + userId); 7698 } 7699 7700 int parentUserId = getProfileParentId(userId); 7701 if (!isSystemApp(mIPackageManager, packageName, parentUserId)) { 7702 throw new IllegalArgumentException("Only system apps can be enabled this way."); 7703 } 7704 7705 // Install the app. 7706 mIPackageManager.installExistingPackageAsUser(packageName, userId); 7707 7708 } catch (RemoteException re) { 7709 // shouldn't happen 7710 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 7711 } finally { 7712 mInjector.binderRestoreCallingIdentity(id); 7713 } 7714 } 7715 } 7716 7717 @Override 7718 public int enableSystemAppWithIntent(ComponentName who, Intent intent) { 7719 Preconditions.checkNotNull(who, "ComponentName is null"); 7720 synchronized (this) { 7721 // This API can only be called by an active device admin, 7722 // so try to retrieve it to check that the caller is one. 7723 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7724 7725 int userId = UserHandle.getCallingUserId(); 7726 long id = mInjector.binderClearCallingIdentity(); 7727 7728 try { 7729 int parentUserId = getProfileParentId(userId); 7730 List<ResolveInfo> activitiesToEnable = mIPackageManager 7731 .queryIntentActivities(intent, 7732 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 7733 PackageManager.MATCH_DIRECT_BOOT_AWARE 7734 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 7735 parentUserId) 7736 .getList(); 7737 7738 if (VERBOSE_LOG) { 7739 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 7740 } 7741 int numberOfAppsInstalled = 0; 7742 if (activitiesToEnable != null) { 7743 for (ResolveInfo info : activitiesToEnable) { 7744 if (info.activityInfo != null) { 7745 String packageName = info.activityInfo.packageName; 7746 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 7747 numberOfAppsInstalled++; 7748 mIPackageManager.installExistingPackageAsUser(packageName, userId); 7749 } else { 7750 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 7751 + " system app"); 7752 } 7753 } 7754 } 7755 } 7756 return numberOfAppsInstalled; 7757 } catch (RemoteException e) { 7758 // shouldn't happen 7759 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 7760 return 0; 7761 } finally { 7762 mInjector.binderRestoreCallingIdentity(id); 7763 } 7764 } 7765 } 7766 7767 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 7768 throws RemoteException { 7769 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, GET_UNINSTALLED_PACKAGES, 7770 userId); 7771 if (appInfo == null) { 7772 throw new IllegalArgumentException("The application " + packageName + 7773 " is not present on this device"); 7774 } 7775 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 7776 } 7777 7778 @Override 7779 public void setAccountManagementDisabled(ComponentName who, String accountType, 7780 boolean disabled) { 7781 if (!mHasFeature) { 7782 return; 7783 } 7784 Preconditions.checkNotNull(who, "ComponentName is null"); 7785 synchronized (this) { 7786 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 7787 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7788 if (disabled) { 7789 ap.accountTypesWithManagementDisabled.add(accountType); 7790 } else { 7791 ap.accountTypesWithManagementDisabled.remove(accountType); 7792 } 7793 saveSettingsLocked(UserHandle.getCallingUserId()); 7794 } 7795 } 7796 7797 @Override 7798 public String[] getAccountTypesWithManagementDisabled() { 7799 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 7800 } 7801 7802 @Override 7803 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 7804 enforceFullCrossUsersPermission(userId); 7805 if (!mHasFeature) { 7806 return null; 7807 } 7808 synchronized (this) { 7809 DevicePolicyData policy = getUserData(userId); 7810 final int N = policy.mAdminList.size(); 7811 ArraySet<String> resultSet = new ArraySet<>(); 7812 for (int i = 0; i < N; i++) { 7813 ActiveAdmin admin = policy.mAdminList.get(i); 7814 resultSet.addAll(admin.accountTypesWithManagementDisabled); 7815 } 7816 return resultSet.toArray(new String[resultSet.size()]); 7817 } 7818 } 7819 7820 @Override 7821 public void setUninstallBlocked(ComponentName who, String packageName, 7822 boolean uninstallBlocked) { 7823 Preconditions.checkNotNull(who, "ComponentName is null"); 7824 final int userId = UserHandle.getCallingUserId(); 7825 synchronized (this) { 7826 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7827 7828 long id = mInjector.binderClearCallingIdentity(); 7829 try { 7830 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 7831 } catch (RemoteException re) { 7832 // Shouldn't happen. 7833 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 7834 } finally { 7835 mInjector.binderRestoreCallingIdentity(id); 7836 } 7837 } 7838 } 7839 7840 @Override 7841 public boolean isUninstallBlocked(ComponentName who, String packageName) { 7842 // This function should return true if and only if the package is blocked by 7843 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 7844 // when the package is a system app, or when it is an active device admin. 7845 final int userId = UserHandle.getCallingUserId(); 7846 7847 synchronized (this) { 7848 if (who != null) { 7849 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7850 } 7851 7852 long id = mInjector.binderClearCallingIdentity(); 7853 try { 7854 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 7855 } catch (RemoteException re) { 7856 // Shouldn't happen. 7857 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 7858 } finally { 7859 mInjector.binderRestoreCallingIdentity(id); 7860 } 7861 } 7862 return false; 7863 } 7864 7865 @Override 7866 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 7867 if (!mHasFeature) { 7868 return; 7869 } 7870 Preconditions.checkNotNull(who, "ComponentName is null"); 7871 synchronized (this) { 7872 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7873 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7874 if (admin.disableCallerId != disabled) { 7875 admin.disableCallerId = disabled; 7876 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 7877 } 7878 } 7879 } 7880 7881 @Override 7882 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 7883 if (!mHasFeature) { 7884 return false; 7885 } 7886 Preconditions.checkNotNull(who, "ComponentName is null"); 7887 synchronized (this) { 7888 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7889 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7890 return admin.disableCallerId; 7891 } 7892 } 7893 7894 @Override 7895 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 7896 enforceCrossUsersPermission(userId); 7897 synchronized (this) { 7898 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7899 return (admin != null) ? admin.disableCallerId : false; 7900 } 7901 } 7902 7903 @Override 7904 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 7905 if (!mHasFeature) { 7906 return; 7907 } 7908 Preconditions.checkNotNull(who, "ComponentName is null"); 7909 synchronized (this) { 7910 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7911 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7912 if (admin.disableContactsSearch != disabled) { 7913 admin.disableContactsSearch = disabled; 7914 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 7915 } 7916 } 7917 } 7918 7919 @Override 7920 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 7921 if (!mHasFeature) { 7922 return false; 7923 } 7924 Preconditions.checkNotNull(who, "ComponentName is null"); 7925 synchronized (this) { 7926 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 7927 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7928 return admin.disableContactsSearch; 7929 } 7930 } 7931 7932 @Override 7933 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 7934 enforceCrossUsersPermission(userId); 7935 synchronized (this) { 7936 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 7937 return (admin != null) ? admin.disableContactsSearch : false; 7938 } 7939 } 7940 7941 @Override 7942 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 7943 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 7944 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 7945 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 7946 final int callingUserId = UserHandle.getCallingUserId(); 7947 7948 final long ident = mInjector.binderClearCallingIdentity(); 7949 try { 7950 synchronized (this) { 7951 final int managedUserId = getManagedUserId(callingUserId); 7952 if (managedUserId < 0) { 7953 return; 7954 } 7955 if (isCrossProfileQuickContactDisabled(managedUserId)) { 7956 if (VERBOSE_LOG) { 7957 Log.v(LOG_TAG, 7958 "Cross-profile contacts access disabled for user " + managedUserId); 7959 } 7960 return; 7961 } 7962 ContactsInternal.startQuickContactWithErrorToastForUser( 7963 mContext, intent, new UserHandle(managedUserId)); 7964 } 7965 } finally { 7966 mInjector.binderRestoreCallingIdentity(ident); 7967 } 7968 } 7969 7970 /** 7971 * @return true if cross-profile QuickContact is disabled 7972 */ 7973 private boolean isCrossProfileQuickContactDisabled(int userId) { 7974 return getCrossProfileCallerIdDisabledForUser(userId) 7975 && getCrossProfileContactsSearchDisabledForUser(userId); 7976 } 7977 7978 /** 7979 * @return the user ID of the managed user that is linked to the current user, if any. 7980 * Otherwise -1. 7981 */ 7982 public int getManagedUserId(int callingUserId) { 7983 if (VERBOSE_LOG) { 7984 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 7985 } 7986 7987 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 7988 if (ui.id == callingUserId || !ui.isManagedProfile()) { 7989 continue; // Caller user self, or not a managed profile. Skip. 7990 } 7991 if (VERBOSE_LOG) { 7992 Log.v(LOG_TAG, "Managed user=" + ui.id); 7993 } 7994 return ui.id; 7995 } 7996 if (VERBOSE_LOG) { 7997 Log.v(LOG_TAG, "Managed user not found."); 7998 } 7999 return -1; 8000 } 8001 8002 @Override 8003 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 8004 if (!mHasFeature) { 8005 return; 8006 } 8007 Preconditions.checkNotNull(who, "ComponentName is null"); 8008 synchronized (this) { 8009 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8010 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8011 if (admin.disableBluetoothContactSharing != disabled) { 8012 admin.disableBluetoothContactSharing = disabled; 8013 saveSettingsLocked(UserHandle.getCallingUserId()); 8014 } 8015 } 8016 } 8017 8018 @Override 8019 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 8020 if (!mHasFeature) { 8021 return false; 8022 } 8023 Preconditions.checkNotNull(who, "ComponentName is null"); 8024 synchronized (this) { 8025 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8026 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8027 return admin.disableBluetoothContactSharing; 8028 } 8029 } 8030 8031 @Override 8032 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 8033 // TODO: Should there be a check to make sure this relationship is 8034 // within a profile group? 8035 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 8036 synchronized (this) { 8037 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 8038 return (admin != null) ? admin.disableBluetoothContactSharing : false; 8039 } 8040 } 8041 8042 /** 8043 * Sets which packages may enter lock task mode. 8044 * 8045 * <p>This function can only be called by the device owner or alternatively by the profile owner 8046 * in case the user is affiliated. 8047 * 8048 * @param packages The list of packages allowed to enter lock task mode. 8049 */ 8050 @Override 8051 public void setLockTaskPackages(ComponentName who, String[] packages) 8052 throws SecurityException { 8053 Preconditions.checkNotNull(who, "ComponentName is null"); 8054 synchronized (this) { 8055 ActiveAdmin deviceOwner = getActiveAdminWithPolicyForUidLocked( 8056 who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, mInjector.binderGetCallingUid()); 8057 ActiveAdmin profileOwner = getActiveAdminWithPolicyForUidLocked( 8058 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()); 8059 if (deviceOwner != null || (profileOwner != null && isAffiliatedUser())) { 8060 int userHandle = mInjector.userHandleGetCallingUserId(); 8061 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 8062 } else { 8063 throw new SecurityException("Admin " + who + 8064 " is neither the device owner or affiliated user's profile owner."); 8065 } 8066 } 8067 } 8068 8069 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 8070 DevicePolicyData policy = getUserData(userHandle); 8071 policy.mLockTaskPackages = packages; 8072 8073 // Store the settings persistently. 8074 saveSettingsLocked(userHandle); 8075 updateLockTaskPackagesLocked(packages, userHandle); 8076 } 8077 8078 /** 8079 * This function returns the list of components allowed to start the task lock mode. 8080 */ 8081 @Override 8082 public String[] getLockTaskPackages(ComponentName who) { 8083 Preconditions.checkNotNull(who, "ComponentName is null"); 8084 synchronized (this) { 8085 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8086 int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 8087 final List<String> packages = getLockTaskPackagesLocked(userHandle); 8088 return packages.toArray(new String[packages.size()]); 8089 } 8090 } 8091 8092 private List<String> getLockTaskPackagesLocked(int userHandle) { 8093 final DevicePolicyData policy = getUserData(userHandle); 8094 return policy.mLockTaskPackages; 8095 } 8096 8097 /** 8098 * This function lets the caller know whether the given package is allowed to start the 8099 * lock task mode. 8100 * @param pkg The package to check 8101 */ 8102 @Override 8103 public boolean isLockTaskPermitted(String pkg) { 8104 // Get current user's devicepolicy 8105 int uid = mInjector.binderGetCallingUid(); 8106 int userHandle = UserHandle.getUserId(uid); 8107 DevicePolicyData policy = getUserData(userHandle); 8108 synchronized (this) { 8109 for (int i = 0; i < policy.mLockTaskPackages.size(); i++) { 8110 String lockTaskPackage = policy.mLockTaskPackages.get(i); 8111 8112 // If the given package equals one of the packages stored our list, 8113 // we allow this package to start lock task mode. 8114 if (lockTaskPackage.equals(pkg)) { 8115 return true; 8116 } 8117 } 8118 } 8119 return false; 8120 } 8121 8122 @Override 8123 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 8124 if (!isCallerWithSystemUid()) { 8125 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 8126 } 8127 synchronized (this) { 8128 final DevicePolicyData policy = getUserData(userHandle); 8129 Bundle adminExtras = new Bundle(); 8130 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 8131 for (ActiveAdmin admin : policy.mAdminList) { 8132 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 8133 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 8134 if (ownsDevice || ownsProfile) { 8135 if (isEnabled) { 8136 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 8137 adminExtras, null); 8138 } else { 8139 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 8140 } 8141 } 8142 } 8143 } 8144 } 8145 8146 @Override 8147 public void setGlobalSetting(ComponentName who, String setting, String value) { 8148 Preconditions.checkNotNull(who, "ComponentName is null"); 8149 8150 synchronized (this) { 8151 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8152 8153 // Some settings are no supported any more. However we do not want to throw a 8154 // SecurityException to avoid breaking apps. 8155 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 8156 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 8157 return; 8158 } 8159 8160 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting)) { 8161 throw new SecurityException(String.format( 8162 "Permission denial: device owners cannot update %1$s", setting)); 8163 } 8164 8165 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 8166 // ignore if it contradicts an existing policy 8167 long timeMs = getMaximumTimeToLock( 8168 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 8169 if (timeMs > 0 && timeMs < Integer.MAX_VALUE) { 8170 return; 8171 } 8172 } 8173 8174 long id = mInjector.binderClearCallingIdentity(); 8175 try { 8176 mInjector.settingsGlobalPutString(setting, value); 8177 } finally { 8178 mInjector.binderRestoreCallingIdentity(id); 8179 } 8180 } 8181 } 8182 8183 @Override 8184 public void setSecureSetting(ComponentName who, String setting, String value) { 8185 Preconditions.checkNotNull(who, "ComponentName is null"); 8186 int callingUserId = mInjector.userHandleGetCallingUserId(); 8187 8188 synchronized (this) { 8189 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8190 8191 if (isDeviceOwner(who, callingUserId)) { 8192 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting)) { 8193 throw new SecurityException(String.format( 8194 "Permission denial: Device owners cannot update %1$s", setting)); 8195 } 8196 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting)) { 8197 throw new SecurityException(String.format( 8198 "Permission denial: Profile owners cannot update %1$s", setting)); 8199 } 8200 8201 long id = mInjector.binderClearCallingIdentity(); 8202 try { 8203 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 8204 } finally { 8205 mInjector.binderRestoreCallingIdentity(id); 8206 } 8207 } 8208 } 8209 8210 @Override 8211 public void setMasterVolumeMuted(ComponentName who, boolean on) { 8212 Preconditions.checkNotNull(who, "ComponentName is null"); 8213 synchronized (this) { 8214 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8215 setUserRestriction(who, UserManager.DISALLLOW_UNMUTE_DEVICE, on); 8216 } 8217 } 8218 8219 @Override 8220 public boolean isMasterVolumeMuted(ComponentName who) { 8221 Preconditions.checkNotNull(who, "ComponentName is null"); 8222 synchronized (this) { 8223 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8224 8225 AudioManager audioManager = 8226 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 8227 return audioManager.isMasterMute(); 8228 } 8229 } 8230 8231 @Override 8232 public void setUserIcon(ComponentName who, Bitmap icon) { 8233 synchronized (this) { 8234 Preconditions.checkNotNull(who, "ComponentName is null"); 8235 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8236 8237 int userId = UserHandle.getCallingUserId(); 8238 long id = mInjector.binderClearCallingIdentity(); 8239 try { 8240 mUserManagerInternal.setUserIcon(userId, icon); 8241 } finally { 8242 mInjector.binderRestoreCallingIdentity(id); 8243 } 8244 } 8245 } 8246 8247 @Override 8248 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 8249 Preconditions.checkNotNull(who, "ComponentName is null"); 8250 synchronized (this) { 8251 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8252 } 8253 final int userId = UserHandle.getCallingUserId(); 8254 8255 long ident = mInjector.binderClearCallingIdentity(); 8256 try { 8257 // disallow disabling the keyguard if a password is currently set 8258 if (disabled && mLockPatternUtils.isSecure(userId)) { 8259 return false; 8260 } 8261 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 8262 } finally { 8263 mInjector.binderRestoreCallingIdentity(ident); 8264 } 8265 return true; 8266 } 8267 8268 @Override 8269 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 8270 int userId = UserHandle.getCallingUserId(); 8271 synchronized (this) { 8272 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8273 DevicePolicyData policy = getUserData(userId); 8274 if (policy.mStatusBarDisabled != disabled) { 8275 if (!setStatusBarDisabledInternal(disabled, userId)) { 8276 return false; 8277 } 8278 policy.mStatusBarDisabled = disabled; 8279 saveSettingsLocked(userId); 8280 } 8281 } 8282 return true; 8283 } 8284 8285 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 8286 long ident = mInjector.binderClearCallingIdentity(); 8287 try { 8288 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 8289 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 8290 if (statusBarService != null) { 8291 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 8292 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 8293 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 8294 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 8295 return true; 8296 } 8297 } catch (RemoteException e) { 8298 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 8299 } finally { 8300 mInjector.binderRestoreCallingIdentity(ident); 8301 } 8302 return false; 8303 } 8304 8305 /** 8306 * We need to update the internal state of whether a user has completed setup or a 8307 * device has paired once. After that, we ignore any changes that reset the 8308 * Settings.Secure.USER_SETUP_COMPLETE or Settings.Secure.DEVICE_PAIRED change 8309 * as we don't trust any apps that might try to reset them. 8310 * <p> 8311 * Unfortunately, we don't know which user's setup state was changed, so we write all of 8312 * them. 8313 */ 8314 void updateUserSetupCompleteAndPaired() { 8315 List<UserInfo> users = mUserManager.getUsers(true); 8316 final int N = users.size(); 8317 for (int i = 0; i < N; i++) { 8318 int userHandle = users.get(i).id; 8319 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 8320 userHandle) != 0) { 8321 DevicePolicyData policy = getUserData(userHandle); 8322 if (!policy.mUserSetupComplete) { 8323 policy.mUserSetupComplete = true; 8324 synchronized (this) { 8325 saveSettingsLocked(userHandle); 8326 } 8327 } 8328 } 8329 if (mIsWatch && mInjector.settingsSecureGetIntForUser(Settings.Secure.DEVICE_PAIRED, 0, 8330 userHandle) != 0) { 8331 DevicePolicyData policy = getUserData(userHandle); 8332 if (!policy.mPaired) { 8333 policy.mPaired = true; 8334 synchronized (this) { 8335 saveSettingsLocked(userHandle); 8336 } 8337 } 8338 } 8339 } 8340 } 8341 8342 private class SetupContentObserver extends ContentObserver { 8343 8344 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 8345 Settings.Secure.USER_SETUP_COMPLETE); 8346 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 8347 Settings.Global.DEVICE_PROVISIONED); 8348 private final Uri mPaired = Settings.Secure.getUriFor(Settings.Secure.DEVICE_PAIRED); 8349 8350 public SetupContentObserver(Handler handler) { 8351 super(handler); 8352 } 8353 8354 void register() { 8355 mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 8356 mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 8357 if (mIsWatch) { 8358 mInjector.registerContentObserver(mPaired, false, this, UserHandle.USER_ALL); 8359 } 8360 } 8361 8362 @Override 8363 public void onChange(boolean selfChange, Uri uri) { 8364 if (mUserSetupComplete.equals(uri) || (mIsWatch && mPaired.equals(uri))) { 8365 updateUserSetupCompleteAndPaired(); 8366 } else if (mDeviceProvisioned.equals(uri)) { 8367 synchronized (DevicePolicyManagerService.this) { 8368 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 8369 // is delayed until device is marked as provisioned. 8370 setDeviceOwnerSystemPropertyLocked(); 8371 } 8372 } 8373 } 8374 } 8375 8376 @VisibleForTesting 8377 final class LocalService extends DevicePolicyManagerInternal { 8378 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 8379 8380 @Override 8381 public List<String> getCrossProfileWidgetProviders(int profileId) { 8382 synchronized (DevicePolicyManagerService.this) { 8383 if (mOwners == null) { 8384 return Collections.emptyList(); 8385 } 8386 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 8387 if (ownerComponent == null) { 8388 return Collections.emptyList(); 8389 } 8390 8391 DevicePolicyData policy = getUserDataUnchecked(profileId); 8392 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 8393 8394 if (admin == null || admin.crossProfileWidgetProviders == null 8395 || admin.crossProfileWidgetProviders.isEmpty()) { 8396 return Collections.emptyList(); 8397 } 8398 8399 return admin.crossProfileWidgetProviders; 8400 } 8401 } 8402 8403 @Override 8404 public void addOnCrossProfileWidgetProvidersChangeListener( 8405 OnCrossProfileWidgetProvidersChangeListener listener) { 8406 synchronized (DevicePolicyManagerService.this) { 8407 if (mWidgetProviderListeners == null) { 8408 mWidgetProviderListeners = new ArrayList<>(); 8409 } 8410 if (!mWidgetProviderListeners.contains(listener)) { 8411 mWidgetProviderListeners.add(listener); 8412 } 8413 } 8414 } 8415 8416 @Override 8417 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 8418 synchronized(DevicePolicyManagerService.this) { 8419 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 8420 } 8421 } 8422 8423 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 8424 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 8425 synchronized (DevicePolicyManagerService.this) { 8426 listeners = new ArrayList<>(mWidgetProviderListeners); 8427 } 8428 final int listenerCount = listeners.size(); 8429 for (int i = 0; i < listenerCount; i++) { 8430 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 8431 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 8432 } 8433 } 8434 8435 @Override 8436 public Intent createShowAdminSupportIntent(int userId, boolean useDefaultIfNoAdmin) { 8437 // This method is called from AM with its lock held, so don't take the DPMS lock. 8438 // b/29242568 8439 8440 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 8441 if (profileOwner != null) { 8442 return createShowAdminSupportIntent(profileOwner, userId); 8443 } 8444 8445 final Pair<Integer, ComponentName> deviceOwner = 8446 mOwners.getDeviceOwnerUserIdAndComponent(); 8447 if (deviceOwner != null && deviceOwner.first == userId) { 8448 return createShowAdminSupportIntent(deviceOwner.second, userId); 8449 } 8450 8451 // We're not specifying the device admin because there isn't one. 8452 if (useDefaultIfNoAdmin) { 8453 return createShowAdminSupportIntent(null, userId); 8454 } 8455 return null; 8456 } 8457 8458 @Override 8459 public Intent createUserRestrictionSupportIntent(int userId, String userRestriction) { 8460 int source; 8461 long ident = mInjector.binderClearCallingIdentity(); 8462 try { 8463 source = mUserManager.getUserRestrictionSource(userRestriction, 8464 UserHandle.of(userId)); 8465 } finally { 8466 mInjector.binderRestoreCallingIdentity(ident); 8467 } 8468 if ((source & UserManager.RESTRICTION_SOURCE_SYSTEM) != 0) { 8469 /* 8470 * In this case, the user restriction is enforced by the system. 8471 * So we won't show an admin support intent, even if it is also 8472 * enforced by a profile/device owner. 8473 */ 8474 return null; 8475 } 8476 boolean enforcedByDo = (source & UserManager.RESTRICTION_SOURCE_DEVICE_OWNER) != 0; 8477 boolean enforcedByPo = (source & UserManager.RESTRICTION_SOURCE_PROFILE_OWNER) != 0; 8478 if (enforcedByDo && enforcedByPo) { 8479 // In this case, we'll show an admin support dialog that does not 8480 // specify the admin. 8481 return createShowAdminSupportIntent(null, userId); 8482 } else if (enforcedByPo) { 8483 final ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 8484 if (profileOwner != null) { 8485 return createShowAdminSupportIntent(profileOwner, userId); 8486 } 8487 // This could happen if another thread has changed the profile owner since we called 8488 // getUserRestrictionSource 8489 return null; 8490 } else if (enforcedByDo) { 8491 final Pair<Integer, ComponentName> deviceOwner 8492 = mOwners.getDeviceOwnerUserIdAndComponent(); 8493 if (deviceOwner != null) { 8494 return createShowAdminSupportIntent(deviceOwner.second, deviceOwner.first); 8495 } 8496 // This could happen if another thread has changed the device owner since we called 8497 // getUserRestrictionSource 8498 return null; 8499 } 8500 return null; 8501 } 8502 8503 private Intent createShowAdminSupportIntent(ComponentName admin, int userId) { 8504 // This method is called with AMS lock held, so don't take DPMS lock 8505 final Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS); 8506 intent.putExtra(Intent.EXTRA_USER_ID, userId); 8507 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, admin); 8508 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 8509 return intent; 8510 } 8511 } 8512 8513 /** 8514 * Returns true if specified admin is allowed to limit passwords and has a 8515 * {@code minimumPasswordMetrics.quality} of at least {@code minPasswordQuality} 8516 */ 8517 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 8518 if (admin.minimumPasswordMetrics.quality < minPasswordQuality) { 8519 return false; 8520 } 8521 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 8522 } 8523 8524 @Override 8525 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 8526 if (policy != null && !policy.isValid()) { 8527 throw new IllegalArgumentException("Invalid system update policy."); 8528 } 8529 synchronized (this) { 8530 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8531 if (policy == null) { 8532 mOwners.clearSystemUpdatePolicy(); 8533 } else { 8534 mOwners.setSystemUpdatePolicy(policy); 8535 } 8536 mOwners.writeDeviceOwner(); 8537 } 8538 mContext.sendBroadcastAsUser( 8539 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 8540 UserHandle.SYSTEM); 8541 } 8542 8543 @Override 8544 public SystemUpdatePolicy getSystemUpdatePolicy() { 8545 if (UserManager.isDeviceInDemoMode(mContext)) { 8546 // Pretending to have an automatic update policy when the device is in retail demo 8547 // mode. This will allow the device to download and install an ota without 8548 // any user interaction. 8549 return SystemUpdatePolicy.createAutomaticInstallPolicy(); 8550 } 8551 synchronized (this) { 8552 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 8553 if (policy != null && !policy.isValid()) { 8554 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 8555 return null; 8556 } 8557 return policy; 8558 } 8559 } 8560 8561 /** 8562 * Checks if the caller of the method is the device owner app. 8563 * 8564 * @param callerUid UID of the caller. 8565 * @return true if the caller is the device owner app 8566 */ 8567 @VisibleForTesting 8568 boolean isCallerDeviceOwner(int callerUid) { 8569 synchronized (this) { 8570 if (!mOwners.hasDeviceOwner()) { 8571 return false; 8572 } 8573 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 8574 return false; 8575 } 8576 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 8577 .getPackageName(); 8578 final String[] pkgs = mContext.getPackageManager().getPackagesForUid(callerUid); 8579 8580 for (String pkg : pkgs) { 8581 if (deviceOwnerPackageName.equals(pkg)) { 8582 return true; 8583 } 8584 } 8585 } 8586 8587 return false; 8588 } 8589 8590 @Override 8591 public void notifyPendingSystemUpdate(long updateReceivedTime) { 8592 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 8593 "Only the system update service can broadcast update information"); 8594 8595 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 8596 Slog.w(LOG_TAG, "Only the system update service in the system user " + 8597 "can broadcast update information."); 8598 return; 8599 } 8600 Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE); 8601 intent.putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 8602 updateReceivedTime); 8603 8604 synchronized (this) { 8605 final String deviceOwnerPackage = 8606 mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerComponent().getPackageName() 8607 : null; 8608 if (deviceOwnerPackage == null) { 8609 return; 8610 } 8611 final UserHandle deviceOwnerUser = new UserHandle(mOwners.getDeviceOwnerUserId()); 8612 8613 ActivityInfo[] receivers = null; 8614 try { 8615 receivers = mContext.getPackageManager().getPackageInfo( 8616 deviceOwnerPackage, PackageManager.GET_RECEIVERS).receivers; 8617 } catch (NameNotFoundException e) { 8618 Log.e(LOG_TAG, "Cannot find device owner package", e); 8619 } 8620 if (receivers != null) { 8621 long ident = mInjector.binderClearCallingIdentity(); 8622 try { 8623 for (int i = 0; i < receivers.length; i++) { 8624 if (permission.BIND_DEVICE_ADMIN.equals(receivers[i].permission)) { 8625 intent.setComponent(new ComponentName(deviceOwnerPackage, 8626 receivers[i].name)); 8627 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 8628 } 8629 } 8630 } finally { 8631 mInjector.binderRestoreCallingIdentity(ident); 8632 } 8633 } 8634 } 8635 } 8636 8637 @Override 8638 public void setPermissionPolicy(ComponentName admin, int policy) throws RemoteException { 8639 int userId = UserHandle.getCallingUserId(); 8640 synchronized (this) { 8641 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8642 DevicePolicyData userPolicy = getUserData(userId); 8643 if (userPolicy.mPermissionPolicy != policy) { 8644 userPolicy.mPermissionPolicy = policy; 8645 saveSettingsLocked(userId); 8646 } 8647 } 8648 } 8649 8650 @Override 8651 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 8652 int userId = UserHandle.getCallingUserId(); 8653 synchronized (this) { 8654 DevicePolicyData userPolicy = getUserData(userId); 8655 return userPolicy.mPermissionPolicy; 8656 } 8657 } 8658 8659 @Override 8660 public boolean setPermissionGrantState(ComponentName admin, String packageName, 8661 String permission, int grantState) throws RemoteException { 8662 UserHandle user = mInjector.binderGetCallingUserHandle(); 8663 synchronized (this) { 8664 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8665 long ident = mInjector.binderClearCallingIdentity(); 8666 try { 8667 if (getTargetSdk(packageName, user.getIdentifier()) 8668 < android.os.Build.VERSION_CODES.M) { 8669 return false; 8670 } 8671 final PackageManager packageManager = mContext.getPackageManager(); 8672 switch (grantState) { 8673 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 8674 mInjector.getPackageManagerInternal().grantRuntimePermission(packageName, 8675 permission, user.getIdentifier(), true /* override policy */); 8676 packageManager.updatePermissionFlags(permission, packageName, 8677 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 8678 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 8679 } break; 8680 8681 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 8682 mInjector.getPackageManagerInternal().revokeRuntimePermission(packageName, 8683 permission, user.getIdentifier(), true /* override policy */); 8684 packageManager.updatePermissionFlags(permission, packageName, 8685 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 8686 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 8687 } break; 8688 8689 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 8690 packageManager.updatePermissionFlags(permission, packageName, 8691 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 8692 } break; 8693 } 8694 return true; 8695 } catch (SecurityException se) { 8696 return false; 8697 } finally { 8698 mInjector.binderRestoreCallingIdentity(ident); 8699 } 8700 } 8701 } 8702 8703 @Override 8704 public int getPermissionGrantState(ComponentName admin, String packageName, 8705 String permission) throws RemoteException { 8706 PackageManager packageManager = mContext.getPackageManager(); 8707 8708 UserHandle user = mInjector.binderGetCallingUserHandle(); 8709 synchronized (this) { 8710 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8711 long ident = mInjector.binderClearCallingIdentity(); 8712 try { 8713 int granted = mIPackageManager.checkPermission(permission, 8714 packageName, user.getIdentifier()); 8715 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 8716 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 8717 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 8718 // Not controlled by policy 8719 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 8720 } else { 8721 // Policy controlled so return result based on permission grant state 8722 return granted == PackageManager.PERMISSION_GRANTED 8723 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 8724 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 8725 } 8726 } finally { 8727 mInjector.binderRestoreCallingIdentity(ident); 8728 } 8729 } 8730 } 8731 8732 boolean isPackageInstalledForUser(String packageName, int userHandle) { 8733 try { 8734 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 8735 userHandle); 8736 return (pi != null) && (pi.applicationInfo.flags != 0); 8737 } catch (RemoteException re) { 8738 throw new RuntimeException("Package manager has died", re); 8739 } 8740 } 8741 8742 @Override 8743 public boolean isProvisioningAllowed(String action) { 8744 if (!mHasFeature) { 8745 return false; 8746 } 8747 8748 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8749 if (DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE.equals(action)) { 8750 if (!hasFeatureManagedUsers()) { 8751 return false; 8752 } 8753 synchronized (this) { 8754 if (mOwners.hasDeviceOwner()) { 8755 // STOPSHIP Only allow creating a managed profile if allowed by the device 8756 // owner. http://b/31952368 8757 if (mInjector.userManagerIsSplitSystemUser()) { 8758 if (callingUserId == UserHandle.USER_SYSTEM) { 8759 // Managed-profiles cannot be setup on the system user. 8760 return false; 8761 } 8762 } 8763 } 8764 } 8765 if (getProfileOwner(callingUserId) != null) { 8766 // Managed user cannot have a managed profile. 8767 return false; 8768 } 8769 boolean canRemoveProfile 8770 = !mUserManager.hasUserRestriction(UserManager.DISALLOW_REMOVE_USER); 8771 final long ident = mInjector.binderClearCallingIdentity(); 8772 try { 8773 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, canRemoveProfile)) { 8774 return false; 8775 } 8776 } finally { 8777 mInjector.binderRestoreCallingIdentity(ident); 8778 } 8779 return true; 8780 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE.equals(action)) { 8781 return isDeviceOwnerProvisioningAllowed(callingUserId); 8782 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_USER.equals(action)) { 8783 if (!hasFeatureManagedUsers()) { 8784 return false; 8785 } 8786 if (!mInjector.userManagerIsSplitSystemUser()) { 8787 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 8788 return false; 8789 } 8790 if (callingUserId == UserHandle.USER_SYSTEM) { 8791 // System user cannot be a managed user. 8792 return false; 8793 } 8794 if (hasUserSetupCompleted(callingUserId)) { 8795 return false; 8796 } 8797 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 8798 return false; 8799 } 8800 return true; 8801 } else if (DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE.equals(action)) { 8802 if (!mInjector.userManagerIsSplitSystemUser()) { 8803 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 8804 return false; 8805 } 8806 return isDeviceOwnerProvisioningAllowed(callingUserId); 8807 } 8808 throw new IllegalArgumentException("Unknown provisioning action " + action); 8809 } 8810 8811 /* 8812 * The device owner can only be set before the setup phase of the primary user has completed, 8813 * except for adb command if no accounts or additional users are present on the device. 8814 */ 8815 private synchronized @DeviceOwnerPreConditionCode int checkSetDeviceOwnerPreConditionLocked( 8816 @Nullable ComponentName owner, int deviceOwnerUserId, boolean isAdb) { 8817 if (mOwners.hasDeviceOwner()) { 8818 return CODE_HAS_DEVICE_OWNER; 8819 } 8820 if (mOwners.hasProfileOwner(deviceOwnerUserId)) { 8821 return CODE_USER_HAS_PROFILE_OWNER; 8822 } 8823 if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) { 8824 return CODE_USER_NOT_RUNNING; 8825 } 8826 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 8827 return CODE_HAS_PAIRED; 8828 } 8829 if (isAdb) { 8830 // if shell command runs after user setup completed check device status. Otherwise, OK. 8831 if (mIsWatch || hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 8832 if (!mInjector.userManagerIsSplitSystemUser()) { 8833 if (mUserManager.getUserCount() > 1) { 8834 return CODE_NONSYSTEM_USER_EXISTS; 8835 } 8836 if (hasIncompatibleAccountsLocked(UserHandle.USER_SYSTEM, owner)) { 8837 return CODE_ACCOUNTS_NOT_EMPTY; 8838 } 8839 } else { 8840 // STOPSHIP Do proper check in split user mode 8841 } 8842 } 8843 return CODE_OK; 8844 } else { 8845 if (!mInjector.userManagerIsSplitSystemUser()) { 8846 // In non-split user mode, DO has to be user 0 8847 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) { 8848 return CODE_NOT_SYSTEM_USER; 8849 } 8850 // In non-split user mode, only provision DO before setup wizard completes 8851 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 8852 return CODE_USER_SETUP_COMPLETED; 8853 } 8854 } else { 8855 // STOPSHIP Do proper check in split user mode 8856 } 8857 return CODE_OK; 8858 } 8859 } 8860 8861 private boolean isDeviceOwnerProvisioningAllowed(int deviceOwnerUserId) { 8862 synchronized (this) { 8863 return CODE_OK == checkSetDeviceOwnerPreConditionLocked( 8864 /* owner unknown */ null, deviceOwnerUserId, /* isAdb */ false); 8865 } 8866 } 8867 8868 private boolean hasFeatureManagedUsers() { 8869 try { 8870 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 8871 } catch (RemoteException e) { 8872 return false; 8873 } 8874 } 8875 8876 @Override 8877 public String getWifiMacAddress(ComponentName admin) { 8878 // Make sure caller has DO. 8879 synchronized (this) { 8880 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8881 } 8882 8883 final long ident = mInjector.binderClearCallingIdentity(); 8884 try { 8885 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 8886 if (wifiInfo == null) { 8887 return null; 8888 } 8889 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 8890 } finally { 8891 mInjector.binderRestoreCallingIdentity(ident); 8892 } 8893 } 8894 8895 /** 8896 * Returns the target sdk version number that the given packageName was built for 8897 * in the given user. 8898 */ 8899 private int getTargetSdk(String packageName, int userId) { 8900 final ApplicationInfo ai; 8901 try { 8902 ai = mIPackageManager.getApplicationInfo(packageName, 0, userId); 8903 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 8904 return targetSdkVersion; 8905 } catch (RemoteException e) { 8906 // Shouldn't happen 8907 return 0; 8908 } 8909 } 8910 8911 @Override 8912 public boolean isManagedProfile(ComponentName admin) { 8913 synchronized (this) { 8914 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8915 } 8916 return isManagedProfile(mInjector.userHandleGetCallingUserId()); 8917 } 8918 8919 @Override 8920 public boolean isSystemOnlyUser(ComponentName admin) { 8921 synchronized (this) { 8922 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8923 } 8924 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8925 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 8926 } 8927 8928 @Override 8929 public void reboot(ComponentName admin) { 8930 Preconditions.checkNotNull(admin); 8931 // Make sure caller has DO. 8932 synchronized (this) { 8933 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8934 } 8935 long ident = mInjector.binderClearCallingIdentity(); 8936 try { 8937 // Make sure there are no ongoing calls on the device. 8938 if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { 8939 throw new IllegalStateException("Cannot be called with ongoing call on the device"); 8940 } 8941 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 8942 } finally { 8943 mInjector.binderRestoreCallingIdentity(ident); 8944 } 8945 } 8946 8947 @Override 8948 public void setShortSupportMessage(@NonNull ComponentName who, CharSequence message) { 8949 if (!mHasFeature) { 8950 return; 8951 } 8952 Preconditions.checkNotNull(who, "ComponentName is null"); 8953 final int userHandle = mInjector.userHandleGetCallingUserId(); 8954 synchronized (this) { 8955 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8956 mInjector.binderGetCallingUid()); 8957 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 8958 admin.shortSupportMessage = message; 8959 saveSettingsLocked(userHandle); 8960 } 8961 } 8962 } 8963 8964 @Override 8965 public CharSequence getShortSupportMessage(@NonNull ComponentName who) { 8966 if (!mHasFeature) { 8967 return null; 8968 } 8969 Preconditions.checkNotNull(who, "ComponentName is null"); 8970 synchronized (this) { 8971 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8972 mInjector.binderGetCallingUid()); 8973 return admin.shortSupportMessage; 8974 } 8975 } 8976 8977 @Override 8978 public void setLongSupportMessage(@NonNull ComponentName who, CharSequence message) { 8979 if (!mHasFeature) { 8980 return; 8981 } 8982 Preconditions.checkNotNull(who, "ComponentName is null"); 8983 final int userHandle = mInjector.userHandleGetCallingUserId(); 8984 synchronized (this) { 8985 ActiveAdmin admin = getActiveAdminForUidLocked(who, 8986 mInjector.binderGetCallingUid()); 8987 if (!TextUtils.equals(admin.longSupportMessage, message)) { 8988 admin.longSupportMessage = message; 8989 saveSettingsLocked(userHandle); 8990 } 8991 } 8992 } 8993 8994 @Override 8995 public CharSequence getLongSupportMessage(@NonNull ComponentName who) { 8996 if (!mHasFeature) { 8997 return null; 8998 } 8999 Preconditions.checkNotNull(who, "ComponentName is null"); 9000 synchronized (this) { 9001 ActiveAdmin admin = getActiveAdminForUidLocked(who, 9002 mInjector.binderGetCallingUid()); 9003 return admin.longSupportMessage; 9004 } 9005 } 9006 9007 @Override 9008 public CharSequence getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 9009 if (!mHasFeature) { 9010 return null; 9011 } 9012 Preconditions.checkNotNull(who, "ComponentName is null"); 9013 if (!isCallerWithSystemUid()) { 9014 throw new SecurityException("Only the system can query support message for user"); 9015 } 9016 synchronized (this) { 9017 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 9018 if (admin != null) { 9019 return admin.shortSupportMessage; 9020 } 9021 } 9022 return null; 9023 } 9024 9025 @Override 9026 public CharSequence getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 9027 if (!mHasFeature) { 9028 return null; 9029 } 9030 Preconditions.checkNotNull(who, "ComponentName is null"); 9031 if (!isCallerWithSystemUid()) { 9032 throw new SecurityException("Only the system can query support message for user"); 9033 } 9034 synchronized (this) { 9035 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 9036 if (admin != null) { 9037 return admin.longSupportMessage; 9038 } 9039 } 9040 return null; 9041 } 9042 9043 @Override 9044 public void setOrganizationColor(@NonNull ComponentName who, int color) { 9045 if (!mHasFeature) { 9046 return; 9047 } 9048 Preconditions.checkNotNull(who, "ComponentName is null"); 9049 final int userHandle = mInjector.userHandleGetCallingUserId(); 9050 enforceManagedProfile(userHandle, "set organization color"); 9051 synchronized (this) { 9052 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9053 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9054 admin.organizationColor = color; 9055 saveSettingsLocked(userHandle); 9056 } 9057 } 9058 9059 @Override 9060 public void setOrganizationColorForUser(int color, int userId) { 9061 if (!mHasFeature) { 9062 return; 9063 } 9064 enforceFullCrossUsersPermission(userId); 9065 enforceManageUsers(); 9066 enforceManagedProfile(userId, "set organization color"); 9067 synchronized (this) { 9068 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9069 admin.organizationColor = color; 9070 saveSettingsLocked(userId); 9071 } 9072 } 9073 9074 @Override 9075 public int getOrganizationColor(@NonNull ComponentName who) { 9076 if (!mHasFeature) { 9077 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 9078 } 9079 Preconditions.checkNotNull(who, "ComponentName is null"); 9080 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 9081 synchronized (this) { 9082 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9083 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9084 return admin.organizationColor; 9085 } 9086 } 9087 9088 @Override 9089 public int getOrganizationColorForUser(int userHandle) { 9090 if (!mHasFeature) { 9091 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 9092 } 9093 enforceFullCrossUsersPermission(userHandle); 9094 enforceManagedProfile(userHandle, "get organization color"); 9095 synchronized (this) { 9096 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 9097 return (profileOwner != null) 9098 ? profileOwner.organizationColor 9099 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 9100 } 9101 } 9102 9103 @Override 9104 public void setOrganizationName(@NonNull ComponentName who, CharSequence text) { 9105 if (!mHasFeature) { 9106 return; 9107 } 9108 Preconditions.checkNotNull(who, "ComponentName is null"); 9109 final int userHandle = mInjector.userHandleGetCallingUserId(); 9110 enforceManagedProfile(userHandle, "set organization name"); 9111 synchronized (this) { 9112 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9113 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9114 if (!TextUtils.equals(admin.organizationName, text)) { 9115 admin.organizationName = (text == null || text.length() == 0) 9116 ? null : text.toString(); 9117 saveSettingsLocked(userHandle); 9118 } 9119 } 9120 } 9121 9122 @Override 9123 public CharSequence getOrganizationName(@NonNull ComponentName who) { 9124 if (!mHasFeature) { 9125 return null; 9126 } 9127 Preconditions.checkNotNull(who, "ComponentName is null"); 9128 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 9129 synchronized(this) { 9130 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9131 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9132 return admin.organizationName; 9133 } 9134 } 9135 9136 @Override 9137 public CharSequence getOrganizationNameForUser(int userHandle) { 9138 if (!mHasFeature) { 9139 return null; 9140 } 9141 enforceFullCrossUsersPermission(userHandle); 9142 enforceManagedProfile(userHandle, "get organization name"); 9143 synchronized (this) { 9144 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 9145 return (profileOwner != null) 9146 ? profileOwner.organizationName 9147 : null; 9148 } 9149 } 9150 9151 @Override 9152 public void setAffiliationIds(ComponentName admin, List<String> ids) { 9153 final Set<String> affiliationIds = new ArraySet<String>(ids); 9154 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9155 9156 synchronized (this) { 9157 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9158 getUserData(callingUserId).mAffiliationIds = affiliationIds; 9159 saveSettingsLocked(callingUserId); 9160 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 9161 // Affiliation ids specified by the device owner are additionally stored in 9162 // UserHandle.USER_SYSTEM's DevicePolicyData. 9163 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 9164 saveSettingsLocked(UserHandle.USER_SYSTEM); 9165 } 9166 } 9167 } 9168 9169 @Override 9170 public boolean isAffiliatedUser() { 9171 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9172 9173 synchronized (this) { 9174 if (mOwners.getDeviceOwnerUserId() == callingUserId) { 9175 // The user that the DO is installed on is always affiliated. 9176 return true; 9177 } 9178 final ComponentName profileOwner = getProfileOwner(callingUserId); 9179 if (profileOwner == null 9180 || !profileOwner.getPackageName().equals(mOwners.getDeviceOwnerPackageName())) { 9181 return false; 9182 } 9183 final Set<String> userAffiliationIds = getUserData(callingUserId).mAffiliationIds; 9184 final Set<String> deviceAffiliationIds = 9185 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 9186 for (String id : userAffiliationIds) { 9187 if (deviceAffiliationIds.contains(id)) { 9188 return true; 9189 } 9190 } 9191 } 9192 return false; 9193 } 9194 9195 private synchronized void disableDeviceOwnerManagedSingleUserFeaturesIfNeeded() { 9196 final boolean isSingleUserManagedDevice = isDeviceOwnerManagedSingleUserDevice(); 9197 9198 // disable security logging if needed 9199 if (!isSingleUserManagedDevice) { 9200 mInjector.securityLogSetLoggingEnabledProperty(false); 9201 Slog.w(LOG_TAG, "Security logging turned off as it's no longer a single user managed" 9202 + " device."); 9203 } 9204 9205 // disable backup service if needed 9206 // note: when clearing DO, the backup service shouldn't be disabled if it was enabled by 9207 // the device owner 9208 if (mOwners.hasDeviceOwner() && !isSingleUserManagedDevice) { 9209 setBackupServiceEnabledInternal(false); 9210 Slog.w(LOG_TAG, "Backup is off as it's a managed device that has more that one user."); 9211 } 9212 9213 // disable network logging if needed 9214 if (!isSingleUserManagedDevice) { 9215 setNetworkLoggingActiveInternal(false); 9216 Slog.w(LOG_TAG, "Network logging turned off as it's no longer a single user managed" 9217 + " device."); 9218 // if there still is a device owner, disable logging policy, otherwise the admin 9219 // has been nuked 9220 if (mOwners.hasDeviceOwner()) { 9221 getDeviceOwnerAdminLocked().isNetworkLoggingEnabled = false; 9222 saveSettingsLocked(mOwners.getDeviceOwnerUserId()); 9223 } 9224 } 9225 } 9226 9227 @Override 9228 public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) { 9229 Preconditions.checkNotNull(admin); 9230 ensureDeviceOwnerManagingSingleUser(admin); 9231 9232 synchronized (this) { 9233 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 9234 return; 9235 } 9236 mInjector.securityLogSetLoggingEnabledProperty(enabled); 9237 if (enabled) { 9238 mSecurityLogMonitor.start(); 9239 } else { 9240 mSecurityLogMonitor.stop(); 9241 } 9242 } 9243 } 9244 9245 @Override 9246 public boolean isSecurityLoggingEnabled(ComponentName admin) { 9247 Preconditions.checkNotNull(admin); 9248 synchronized (this) { 9249 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9250 return mInjector.securityLogGetLoggingEnabledProperty(); 9251 } 9252 } 9253 9254 private synchronized void recordSecurityLogRetrievalTime() { 9255 final long currentTime = System.currentTimeMillis(); 9256 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 9257 if (currentTime > policyData.mLastSecurityLogRetrievalTime) { 9258 policyData.mLastSecurityLogRetrievalTime = currentTime; 9259 saveSettingsLocked(UserHandle.USER_SYSTEM); 9260 } 9261 } 9262 9263 @Override 9264 public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) { 9265 Preconditions.checkNotNull(admin); 9266 ensureDeviceOwnerManagingSingleUser(admin); 9267 9268 if (!mContext.getResources().getBoolean(R.bool.config_supportPreRebootSecurityLogs)) { 9269 return null; 9270 } 9271 9272 recordSecurityLogRetrievalTime(); 9273 9274 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 9275 try { 9276 SecurityLog.readPreviousEvents(output); 9277 return new ParceledListSlice<SecurityEvent>(output); 9278 } catch (IOException e) { 9279 Slog.w(LOG_TAG, "Fail to read previous events" , e); 9280 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 9281 } 9282 } 9283 9284 @Override 9285 public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) { 9286 Preconditions.checkNotNull(admin); 9287 ensureDeviceOwnerManagingSingleUser(admin); 9288 9289 recordSecurityLogRetrievalTime(); 9290 9291 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 9292 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 9293 } 9294 9295 private void enforceCanManageDeviceAdmin() { 9296 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 9297 null); 9298 } 9299 9300 private void enforceCanManageProfileAndDeviceOwners() { 9301 mContext.enforceCallingOrSelfPermission( 9302 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 9303 } 9304 9305 private void enforceCallerSystemUserHandle() { 9306 final int callingUid = mInjector.binderGetCallingUid(); 9307 final int userId = UserHandle.getUserId(callingUid); 9308 if (userId != UserHandle.USER_SYSTEM) { 9309 throw new SecurityException("Caller has to be in user 0"); 9310 } 9311 } 9312 9313 @Override 9314 public boolean isUninstallInQueue(final String packageName) { 9315 enforceCanManageDeviceAdmin(); 9316 final int userId = mInjector.userHandleGetCallingUserId(); 9317 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 9318 synchronized (this) { 9319 return mPackagesToRemove.contains(packageUserPair); 9320 } 9321 } 9322 9323 @Override 9324 public void uninstallPackageWithActiveAdmins(final String packageName) { 9325 enforceCanManageDeviceAdmin(); 9326 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 9327 9328 final int userId = mInjector.userHandleGetCallingUserId(); 9329 9330 enforceUserUnlocked(userId); 9331 9332 final ComponentName profileOwner = getProfileOwner(userId); 9333 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 9334 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 9335 } 9336 9337 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 9338 if (getDeviceOwnerUserId() == userId && deviceOwner != null 9339 && packageName.equals(deviceOwner.getPackageName())) { 9340 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 9341 } 9342 9343 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 9344 synchronized (this) { 9345 mPackagesToRemove.add(packageUserPair); 9346 } 9347 9348 // All active admins on the user. 9349 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 9350 9351 // Active admins in the target package. 9352 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 9353 if (allActiveAdmins != null) { 9354 for (ComponentName activeAdmin : allActiveAdmins) { 9355 if (packageName.equals(activeAdmin.getPackageName())) { 9356 packageActiveAdmins.add(activeAdmin); 9357 removeActiveAdmin(activeAdmin, userId); 9358 } 9359 } 9360 } 9361 if (packageActiveAdmins.size() == 0) { 9362 startUninstallIntent(packageName, userId); 9363 } else { 9364 mHandler.postDelayed(new Runnable() { 9365 @Override 9366 public void run() { 9367 for (ComponentName activeAdmin : packageActiveAdmins) { 9368 removeAdminArtifacts(activeAdmin, userId); 9369 } 9370 startUninstallIntent(packageName, userId); 9371 } 9372 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 9373 } 9374 } 9375 9376 @Override 9377 public boolean isDeviceProvisioned() { 9378 return !TextUtils.isEmpty(mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT)); 9379 } 9380 9381 private void removePackageIfRequired(final String packageName, final int userId) { 9382 if (!packageHasActiveAdmins(packageName, userId)) { 9383 // Will not do anything if uninstall was not requested or was already started. 9384 startUninstallIntent(packageName, userId); 9385 } 9386 } 9387 9388 private void startUninstallIntent(final String packageName, final int userId) { 9389 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 9390 synchronized (this) { 9391 if (!mPackagesToRemove.contains(packageUserPair)) { 9392 // Do nothing if uninstall was not requested or was already started. 9393 return; 9394 } 9395 mPackagesToRemove.remove(packageUserPair); 9396 } 9397 try { 9398 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 9399 // Package does not exist. Nothing to do. 9400 return; 9401 } 9402 } catch (RemoteException re) { 9403 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 9404 } 9405 9406 try { // force stop the package before uninstalling 9407 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 9408 } catch (RemoteException re) { 9409 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 9410 } 9411 final Uri packageURI = Uri.parse("package:" + packageName); 9412 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 9413 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 9414 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 9415 } 9416 9417 /** 9418 * Removes the admin from the policy. Ideally called after the admin's 9419 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 9420 * 9421 * @param adminReceiver The admin to remove 9422 * @param userHandle The user for which this admin has to be removed. 9423 */ 9424 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 9425 synchronized (this) { 9426 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 9427 if (admin == null) { 9428 return; 9429 } 9430 final DevicePolicyData policy = getUserData(userHandle); 9431 final boolean doProxyCleanup = admin.info.usesPolicy( 9432 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 9433 policy.mAdminList.remove(admin); 9434 policy.mAdminMap.remove(adminReceiver); 9435 validatePasswordOwnerLocked(policy); 9436 if (doProxyCleanup) { 9437 resetGlobalProxyLocked(policy); 9438 } 9439 saveSettingsLocked(userHandle); 9440 updateMaximumTimeToLockLocked(userHandle); 9441 policy.mRemovingAdmins.remove(adminReceiver); 9442 9443 Slog.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle); 9444 } 9445 // The removed admin might have disabled camera, so update user 9446 // restrictions. 9447 pushUserRestrictions(userHandle); 9448 } 9449 9450 @Override 9451 public void setDeviceProvisioningConfigApplied() { 9452 enforceManageUsers(); 9453 synchronized (this) { 9454 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 9455 policy.mDeviceProvisioningConfigApplied = true; 9456 saveSettingsLocked(UserHandle.USER_SYSTEM); 9457 } 9458 } 9459 9460 @Override 9461 public boolean isDeviceProvisioningConfigApplied() { 9462 enforceManageUsers(); 9463 synchronized (this) { 9464 final DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 9465 return policy.mDeviceProvisioningConfigApplied; 9466 } 9467 } 9468 9469 /** 9470 * Force update internal persistent state from Settings.Secure.USER_SETUP_COMPLETE. 9471 * 9472 * It's added for testing only. Please use this API carefully if it's used by other system app 9473 * and bare in mind Settings.Secure.USER_SETUP_COMPLETE can be modified by user and other system 9474 * apps. 9475 */ 9476 @Override 9477 public void forceUpdateUserSetupComplete() { 9478 enforceCanManageProfileAndDeviceOwners(); 9479 enforceCallerSystemUserHandle(); 9480 // no effect if it's called from user build 9481 if (!mInjector.isBuildDebuggable()) { 9482 return; 9483 } 9484 final int userId = UserHandle.USER_SYSTEM; 9485 boolean isUserCompleted = mInjector.settingsSecureGetIntForUser( 9486 Settings.Secure.USER_SETUP_COMPLETE, 0, userId) != 0; 9487 DevicePolicyData policy = getUserData(userId); 9488 policy.mUserSetupComplete = isUserCompleted; 9489 synchronized (this) { 9490 saveSettingsLocked(userId); 9491 } 9492 } 9493 9494 @Override 9495 public void setBackupServiceEnabled(ComponentName admin, boolean enabled) { 9496 Preconditions.checkNotNull(admin); 9497 if (!mHasFeature) { 9498 return; 9499 } 9500 ensureDeviceOwnerManagingSingleUser(admin); 9501 setBackupServiceEnabledInternal(enabled); 9502 } 9503 9504 private synchronized void setBackupServiceEnabledInternal(boolean enabled) { 9505 long ident = mInjector.binderClearCallingIdentity(); 9506 try { 9507 IBackupManager ibm = mInjector.getIBackupManager(); 9508 if (ibm != null) { 9509 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, enabled); 9510 } 9511 } catch (RemoteException e) { 9512 throw new IllegalStateException( 9513 "Failed " + (enabled ? "" : "de") + "activating backup service.", e); 9514 } finally { 9515 mInjector.binderRestoreCallingIdentity(ident); 9516 } 9517 } 9518 9519 @Override 9520 public boolean isBackupServiceEnabled(ComponentName admin) { 9521 Preconditions.checkNotNull(admin); 9522 if (!mHasFeature) { 9523 return true; 9524 } 9525 synchronized (this) { 9526 try { 9527 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9528 IBackupManager ibm = mInjector.getIBackupManager(); 9529 return ibm != null && ibm.isBackupServiceActive(UserHandle.USER_SYSTEM); 9530 } catch (RemoteException e) { 9531 throw new IllegalStateException("Failed requesting backup service state.", e); 9532 } 9533 } 9534 } 9535 9536 @Override 9537 public boolean bindDeviceAdminServiceAsUser( 9538 @NonNull ComponentName admin, @NonNull IApplicationThread caller, 9539 @Nullable IBinder activtiyToken, @NonNull Intent serviceIntent, 9540 @NonNull IServiceConnection connection, int flags, @UserIdInt int targetUserId) { 9541 if (!mHasFeature) { 9542 return false; 9543 } 9544 Preconditions.checkNotNull(admin); 9545 Preconditions.checkNotNull(caller); 9546 Preconditions.checkNotNull(serviceIntent); 9547 Preconditions.checkNotNull(connection); 9548 Preconditions.checkArgument(mInjector.userHandleGetCallingUserId() != targetUserId, 9549 "target user id must be different from the calling user id"); 9550 9551 if (!getBindDeviceAdminTargetUsers(admin).contains(UserHandle.of(targetUserId))) { 9552 throw new SecurityException("Not allowed to bind to target user id"); 9553 } 9554 9555 final String targetPackage; 9556 synchronized (this) { 9557 targetPackage = getOwnerPackageNameForUserLocked(targetUserId); 9558 } 9559 9560 final long callingIdentity = mInjector.binderClearCallingIdentity(); 9561 try { 9562 // Validate and sanitize the incoming service intent. 9563 final Intent sanitizedIntent = 9564 createCrossUserServiceIntent(serviceIntent, targetPackage, targetUserId); 9565 if (sanitizedIntent == null) { 9566 // Fail, cannot lookup the target service. 9567 throw new SecurityException("Invalid intent or failed to look up the service"); 9568 } 9569 9570 // Ask ActivityManager to bind it. Notice that we are binding the service with the 9571 // caller app instead of DevicePolicyManagerService. 9572 return mInjector.getIActivityManager().bindService( 9573 caller, activtiyToken, serviceIntent, 9574 serviceIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 9575 connection, flags, mContext.getOpPackageName(), 9576 targetUserId) != 0; 9577 } catch (RemoteException ex) { 9578 // Same process, should not happen. 9579 } finally { 9580 mInjector.binderRestoreCallingIdentity(callingIdentity); 9581 } 9582 9583 // Failed to bind. 9584 return false; 9585 } 9586 9587 @Override 9588 public @NonNull List<UserHandle> getBindDeviceAdminTargetUsers(@NonNull ComponentName admin) { 9589 if (!mHasFeature) { 9590 return Collections.emptyList(); 9591 } 9592 Preconditions.checkNotNull(admin); 9593 ArrayList<UserHandle> targetUsers = new ArrayList<>(); 9594 9595 synchronized (this) { 9596 ActiveAdmin callingOwner = getActiveAdminForCallerLocked( 9597 admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9598 9599 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9600 final boolean isCallerDeviceOwner = isDeviceOwner(callingOwner); 9601 final boolean isCallerManagedProfile = isManagedProfile(callingUserId); 9602 if (!isCallerDeviceOwner && !isCallerManagedProfile 9603 /* STOPSHIP(b/32326223) Reinstate when setAffiliationIds is public 9604 || !isAffiliatedUser(callingUserId) */) { 9605 return targetUsers; 9606 } 9607 9608 final long callingIdentity = mInjector.binderClearCallingIdentity(); 9609 try { 9610 String callingOwnerPackage = callingOwner.info.getComponent().getPackageName(); 9611 for (int userId : mUserManager.getProfileIdsWithDisabled(callingUserId)) { 9612 if (userId == callingUserId) { 9613 continue; 9614 } 9615 9616 // We only allow the device owner and a managed profile owner to bind to each 9617 // other. 9618 if ((isCallerManagedProfile && userId == mOwners.getDeviceOwnerUserId()) 9619 || (isCallerDeviceOwner && isManagedProfile(userId))) { 9620 String targetOwnerPackage = getOwnerPackageNameForUserLocked(userId); 9621 9622 // Both must be the same package and be affiliated in order to bind. 9623 if (callingOwnerPackage.equals(targetOwnerPackage) 9624 /* STOPSHIP(b/32326223) Reinstate when setAffiliationIds is public 9625 && isAffiliatedUser(userId)*/) { 9626 targetUsers.add(UserHandle.of(userId)); 9627 } 9628 } 9629 } 9630 } finally { 9631 mInjector.binderRestoreCallingIdentity(callingIdentity); 9632 } 9633 } 9634 9635 return targetUsers; 9636 } 9637 9638 /** 9639 * Return true if a given user has any accounts that'll prevent installing a device or profile 9640 * owner {@code owner}. 9641 * - If the user has no accounts, then return false. 9642 * - Otherwise, if the owner is unknown (== null), or is not test-only, then return true. 9643 * - Otherwise, if there's any account that does not have ..._ALLOWED, or does have 9644 * ..._DISALLOWED, return true. 9645 * - Otherwise return false. 9646 */ 9647 private boolean hasIncompatibleAccountsLocked(int userId, @Nullable ComponentName owner) { 9648 final long token = mInjector.binderClearCallingIdentity(); 9649 try { 9650 final AccountManager am = AccountManager.get(mContext); 9651 final Account accounts[] = am.getAccountsAsUser(userId); 9652 if (accounts.length == 0) { 9653 return false; 9654 } 9655 final String[] feature_allow = 9656 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_ALLOWED }; 9657 final String[] feature_disallow = 9658 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_DISALLOWED }; 9659 9660 // Even if we find incompatible accounts along the way, we still check all accounts 9661 // for logging. 9662 boolean compatible = true; 9663 for (Account account : accounts) { 9664 if (hasAccountFeatures(am, account, feature_disallow)) { 9665 Log.e(LOG_TAG, account + " has " + feature_disallow[0]); 9666 compatible = false; 9667 } 9668 if (!hasAccountFeatures(am, account, feature_allow)) { 9669 Log.e(LOG_TAG, account + " doesn't have " + feature_allow[0]); 9670 compatible = false; 9671 } 9672 } 9673 if (compatible) { 9674 Log.w(LOG_TAG, "All accounts are compatible"); 9675 } else { 9676 Log.e(LOG_TAG, "Found incompatible accounts"); 9677 } 9678 9679 // Then check if the owner is test-only. 9680 String log; 9681 if (owner == null) { 9682 // Owner is unknown. Suppose it's not test-only 9683 compatible = false; 9684 log = "Only test-only device/profile owner can be installed with accounts"; 9685 } else if (isAdminTestOnlyLocked(owner, userId)) { 9686 if (compatible) { 9687 log = "Installing test-only owner " + owner; 9688 } else { 9689 log = "Can't install test-only owner " + owner + " with incompatible accounts"; 9690 } 9691 } else { 9692 compatible = false; 9693 log = "Can't install non test-only owner " + owner + " with accounts"; 9694 } 9695 if (compatible) { 9696 Log.w(LOG_TAG, log); 9697 } else { 9698 Log.e(LOG_TAG, log); 9699 } 9700 return !compatible; 9701 } finally { 9702 mInjector.binderRestoreCallingIdentity(token); 9703 } 9704 } 9705 9706 private boolean hasAccountFeatures(AccountManager am, Account account, String[] features) { 9707 try { 9708 return am.hasFeatures(account, features, null, null).getResult(); 9709 } catch (Exception e) { 9710 Log.w(LOG_TAG, "Failed to get account feature", e); 9711 return false; 9712 } 9713 } 9714 9715 private boolean isAdb() { 9716 final int callingUid = mInjector.binderGetCallingUid(); 9717 return callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID; 9718 } 9719 9720 @Override 9721 public synchronized void setNetworkLoggingEnabled(ComponentName admin, boolean enabled) { 9722 if (!mHasFeature) { 9723 return; 9724 } 9725 Preconditions.checkNotNull(admin); 9726 ensureDeviceOwnerManagingSingleUser(admin); 9727 9728 if (enabled == isNetworkLoggingEnabledInternalLocked()) { 9729 // already in the requested state 9730 return; 9731 } 9732 getDeviceOwnerAdminLocked().isNetworkLoggingEnabled = enabled; 9733 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 9734 9735 setNetworkLoggingActiveInternal(enabled); 9736 } 9737 9738 private synchronized void setNetworkLoggingActiveInternal(boolean active) { 9739 final long callingIdentity = mInjector.binderClearCallingIdentity(); 9740 try { 9741 if (active) { 9742 mNetworkLogger = new NetworkLogger(this, mInjector.getPackageManagerInternal()); 9743 if (!mNetworkLogger.startNetworkLogging()) { 9744 mNetworkLogger = null; 9745 Slog.wtf(LOG_TAG, "Network logging could not be started due to the logging" 9746 + " service not being available yet."); 9747 } 9748 } else { 9749 if (mNetworkLogger != null && !mNetworkLogger.stopNetworkLogging()) { 9750 mNetworkLogger = null; 9751 Slog.wtf(LOG_TAG, "Network logging could not be stopped due to the logging" 9752 + " service not being available yet."); 9753 } 9754 mNetworkLogger = null; 9755 } 9756 } finally { 9757 mInjector.binderRestoreCallingIdentity(callingIdentity); 9758 } 9759 } 9760 9761 @Override 9762 public boolean isNetworkLoggingEnabled(ComponentName admin) { 9763 if (!mHasFeature) { 9764 return false; 9765 } 9766 Preconditions.checkNotNull(admin); 9767 synchronized (this) { 9768 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9769 return isNetworkLoggingEnabledInternalLocked(); 9770 } 9771 } 9772 9773 private boolean isNetworkLoggingEnabledInternalLocked() { 9774 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 9775 return (deviceOwner != null) && deviceOwner.isNetworkLoggingEnabled; 9776 } 9777 9778 /* 9779 * A maximum of 1200 events are returned, and the total marshalled size is in the order of 9780 * 100kB, so returning a List instead of ParceledListSlice is acceptable. 9781 * Ideally this would be done with ParceledList, however it only supports homogeneous types. 9782 * 9783 * @see NetworkLoggingHandler#MAX_EVENTS_PER_BATCH 9784 */ 9785 @Override 9786 public synchronized List<NetworkEvent> retrieveNetworkLogs(ComponentName admin, 9787 long batchToken) { 9788 if (!mHasFeature) { 9789 return null; 9790 } 9791 Preconditions.checkNotNull(admin); 9792 ensureDeviceOwnerManagingSingleUser(admin); 9793 9794 if (mNetworkLogger == null) { 9795 return null; 9796 } 9797 9798 if (!isNetworkLoggingEnabledInternalLocked()) { 9799 return null; 9800 } 9801 9802 final long currentTime = System.currentTimeMillis(); 9803 synchronized (this) { 9804 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 9805 if (currentTime > policyData.mLastNetworkLogsRetrievalTime) { 9806 policyData.mLastNetworkLogsRetrievalTime = currentTime; 9807 saveSettingsLocked(UserHandle.USER_SYSTEM); 9808 } 9809 } 9810 9811 return mNetworkLogger.retrieveLogs(batchToken); 9812 } 9813 9814 /** 9815 * Return the package name of owner in a given user. 9816 */ 9817 private String getOwnerPackageNameForUserLocked(int userId) { 9818 return mOwners.getDeviceOwnerUserId() == userId 9819 ? mOwners.getDeviceOwnerPackageName() 9820 : mOwners.getProfileOwnerPackage(userId); 9821 } 9822 9823 /** 9824 * @param rawIntent Original service intent specified by caller. 9825 * @param expectedPackageName The expected package name in the incoming intent. 9826 * @return Intent that have component explicitly set. {@code null} if the incoming intent 9827 * or target service is invalid. 9828 */ 9829 private Intent createCrossUserServiceIntent( 9830 @NonNull Intent rawIntent, @NonNull String expectedPackageName, 9831 @UserIdInt int targetUserId) throws RemoteException { 9832 if (rawIntent.getComponent() == null && rawIntent.getPackage() == null) { 9833 Log.e(LOG_TAG, "Service intent must be explicit (with a package name or component): " 9834 + rawIntent); 9835 return null; 9836 } 9837 ResolveInfo info = mIPackageManager.resolveService( 9838 rawIntent, 9839 rawIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 9840 0, // flags 9841 targetUserId); 9842 if (info == null || info.serviceInfo == null) { 9843 Log.e(LOG_TAG, "Fail to look up the service: " + rawIntent); 9844 return null; 9845 } 9846 if (!expectedPackageName.equals(info.serviceInfo.packageName)) { 9847 Log.e(LOG_TAG, "Only allow to bind service in " + expectedPackageName); 9848 return null; 9849 } 9850 if (info.serviceInfo.exported) { 9851 Log.e(LOG_TAG, "The service must be unexported."); 9852 return null; 9853 } 9854 // It is the system server to bind the service, it would be extremely dangerous if it 9855 // can be exploited to bind any service. Set the component explicitly to make sure we 9856 // do not bind anything accidentally. 9857 rawIntent.setComponent(info.serviceInfo.getComponentName()); 9858 return rawIntent; 9859 } 9860 9861 @Override 9862 public long getLastSecurityLogRetrievalTime() { 9863 enforceDeviceOwnerOrManageUsers(); 9864 return getUserData(UserHandle.USER_SYSTEM).mLastSecurityLogRetrievalTime; 9865 } 9866 9867 @Override 9868 public long getLastBugReportRequestTime() { 9869 enforceDeviceOwnerOrManageUsers(); 9870 return getUserData(UserHandle.USER_SYSTEM).mLastBugReportRequestTime; 9871 } 9872 9873 @Override 9874 public long getLastNetworkLogRetrievalTime() { 9875 enforceDeviceOwnerOrManageUsers(); 9876 return getUserData(UserHandle.USER_SYSTEM).mLastNetworkLogsRetrievalTime; 9877 } 9878} 9879