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 17 package com.android.server.devicepolicy; 18 19 import static android.Manifest.permission.BIND_DEVICE_ADMIN; 20 import static android.Manifest.permission.MANAGE_CA_CERTIFICATES; 21 import static android.app.ActivityManager.LOCK_TASK_MODE_NONE; 22 import static android.app.admin.DeviceAdminReceiver.EXTRA_TRANSFER_OWNERSHIP_ADMIN_EXTRAS_BUNDLE; 23 import static android.app.admin.DevicePolicyManager.ACTION_PROVISION_MANAGED_USER; 24 import static android.app.admin.DevicePolicyManager.CODE_ACCOUNTS_NOT_EMPTY; 25 import static android.app.admin.DevicePolicyManager.CODE_ADD_MANAGED_PROFILE_DISALLOWED; 26 import static android.app.admin.DevicePolicyManager.CODE_CANNOT_ADD_MANAGED_PROFILE; 27 import static android.app.admin.DevicePolicyManager.CODE_DEVICE_ADMIN_NOT_SUPPORTED; 28 import static android.app.admin.DevicePolicyManager.CODE_HAS_DEVICE_OWNER; 29 import static android.app.admin.DevicePolicyManager.CODE_HAS_PAIRED; 30 import static android.app.admin.DevicePolicyManager.CODE_MANAGED_USERS_NOT_SUPPORTED; 31 import static android.app.admin.DevicePolicyManager.CODE_NONSYSTEM_USER_EXISTS; 32 import static android.app.admin.DevicePolicyManager.CODE_NOT_SYSTEM_USER; 33 import static android.app.admin.DevicePolicyManager.CODE_NOT_SYSTEM_USER_SPLIT; 34 import static android.app.admin.DevicePolicyManager.CODE_OK; 35 import static android.app.admin.DevicePolicyManager.CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 36 import static android.app.admin.DevicePolicyManager.CODE_SYSTEM_USER; 37 import static android.app.admin.DevicePolicyManager.CODE_USER_HAS_PROFILE_OWNER; 38 import static android.app.admin.DevicePolicyManager.CODE_USER_NOT_RUNNING; 39 import static android.app.admin.DevicePolicyManager.CODE_USER_SETUP_COMPLETED; 40 import static android.app.admin.DevicePolicyManager.DELEGATION_APP_RESTRICTIONS; 41 import static android.app.admin.DevicePolicyManager.DELEGATION_BLOCK_UNINSTALL; 42 import static android.app.admin.DevicePolicyManager.DELEGATION_CERT_INSTALL; 43 import static android.app.admin.DevicePolicyManager.DELEGATION_ENABLE_SYSTEM_APP; 44 import static android.app.admin.DevicePolicyManager.DELEGATION_INSTALL_EXISTING_PACKAGE; 45 import static android.app.admin.DevicePolicyManager.DELEGATION_KEEP_UNINSTALLED_PACKAGES; 46 import static android.app.admin.DevicePolicyManager.DELEGATION_PACKAGE_ACCESS; 47 import static android.app.admin.DevicePolicyManager.DELEGATION_PERMISSION_GRANT; 48 import static android.app.admin.DevicePolicyManager.ID_TYPE_BASE_INFO; 49 import static android.app.admin.DevicePolicyManager.ID_TYPE_IMEI; 50 import static android.app.admin.DevicePolicyManager.ID_TYPE_MEID; 51 import static android.app.admin.DevicePolicyManager.ID_TYPE_SERIAL; 52 import static android.app.admin.DevicePolicyManager.LEAVE_ALL_SYSTEM_APPS_ENABLED; 53 import static android.app.admin.DevicePolicyManager.LOCK_TASK_FEATURE_HOME; 54 import static android.app.admin.DevicePolicyManager.LOCK_TASK_FEATURE_NOTIFICATIONS; 55 import static android.app.admin.DevicePolicyManager.LOCK_TASK_FEATURE_OVERVIEW; 56 import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX; 57 import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 58 import static android.app.admin.DevicePolicyManager.PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 59 import static android.app.admin.DevicePolicyManager.WIPE_EUICC; 60 import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE; 61 import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA; 62 import static android.content.pm.PackageManager.MATCH_UNINSTALLED_PACKAGES; 63 64 import static android.provider.Telephony.Carriers.DPC_URI; 65 import static android.provider.Telephony.Carriers.ENFORCE_KEY; 66 import static android.provider.Telephony.Carriers.ENFORCE_MANAGED_URI; 67 68 import static com.android.internal.logging.nano.MetricsProto.MetricsEvent 69 .PROVISIONING_ENTRY_POINT_ADB; 70 import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker 71 .STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW; 72 73 import static com.android.server.devicepolicy.TransferOwnershipMetadataManager.ADMIN_TYPE_DEVICE_OWNER; 74 import static com.android.server.devicepolicy.TransferOwnershipMetadataManager.ADMIN_TYPE_PROFILE_OWNER; 75 76 77 import static com.android.server.pm.PackageManagerService.PLATFORM_PACKAGE_NAME; 78 79 import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT; 80 import static org.xmlpull.v1.XmlPullParser.END_TAG; 81 import static org.xmlpull.v1.XmlPullParser.TEXT; 82 83 import android.Manifest.permission; 84 import android.accessibilityservice.AccessibilityServiceInfo; 85 import android.accounts.Account; 86 import android.accounts.AccountManager; 87 import android.annotation.NonNull; 88 import android.annotation.Nullable; 89 import android.annotation.UserIdInt; 90 import android.app.Activity; 91 import android.app.ActivityManager; 92 import android.app.ActivityManagerInternal; 93 import android.app.ActivityThread; 94 import android.app.AlarmManager; 95 import android.app.AppGlobals; 96 import android.app.IActivityManager; 97 import android.app.IApplicationThread; 98 import android.app.IServiceConnection; 99 import android.app.Notification; 100 import android.app.NotificationManager; 101 import android.app.PendingIntent; 102 import android.app.StatusBarManager; 103 import android.app.admin.DeviceAdminInfo; 104 import android.app.admin.DeviceAdminReceiver; 105 import android.app.admin.DevicePolicyCache; 106 import android.app.admin.DevicePolicyManager; 107 import android.app.admin.DevicePolicyManagerInternal; 108 import android.app.admin.NetworkEvent; 109 import android.app.admin.PasswordMetrics; 110 import android.app.admin.SecurityLog; 111 import android.app.admin.SecurityLog.SecurityEvent; 112 import android.app.admin.SystemUpdateInfo; 113 import android.app.admin.SystemUpdatePolicy; 114 import android.app.backup.IBackupManager; 115 import android.app.backup.ISelectBackupTransportCallback; 116 import android.app.trust.TrustManager; 117 import android.app.usage.UsageStatsManagerInternal; 118 import android.content.BroadcastReceiver; 119 import android.content.ComponentName; 120 import android.content.ContentValues; 121 import android.content.Context; 122 import android.content.Intent; 123 import android.content.IntentFilter; 124 import android.content.pm.ActivityInfo; 125 import android.content.pm.ApplicationInfo; 126 import android.content.pm.IPackageDataObserver; 127 import android.content.pm.IPackageManager; 128 import android.content.pm.PackageInfo; 129 import android.content.pm.PackageManager; 130 import android.content.pm.PackageManager.NameNotFoundException; 131 import android.content.pm.PackageManagerInternal; 132 import android.content.pm.ParceledListSlice; 133 import android.content.pm.PermissionInfo; 134 import android.content.pm.ResolveInfo; 135 import android.content.pm.ServiceInfo; 136 import android.content.pm.StringParceledListSlice; 137 import android.content.pm.UserInfo; 138 import android.content.res.Resources; 139 import android.database.ContentObserver; 140 import android.database.Cursor; 141 import android.graphics.Bitmap; 142 import android.graphics.Color; 143 import android.media.AudioManager; 144 import android.media.IAudioService; 145 import android.net.ConnectivityManager; 146 import android.net.IIpConnectivityMetrics; 147 import android.net.ProxyInfo; 148 import android.net.Uri; 149 import android.net.metrics.IpConnectivityLog; 150 import android.net.wifi.WifiInfo; 151 import android.net.wifi.WifiManager; 152 import android.os.Binder; 153 import android.os.Build; 154 import android.os.Bundle; 155 import android.os.Environment; 156 import android.os.FileUtils; 157 import android.os.Handler; 158 import android.os.IBinder; 159 import android.os.Looper; 160 import android.os.ParcelFileDescriptor; 161 import android.os.PersistableBundle; 162 import android.os.PowerManager; 163 import android.os.PowerManagerInternal; 164 import android.os.Process; 165 import android.os.RecoverySystem; 166 import android.os.RemoteCallback; 167 import android.os.RemoteException; 168 import android.os.ServiceManager; 169 import android.os.ServiceSpecificException; 170 import android.os.SystemClock; 171 import android.os.SystemProperties; 172 import android.os.UserHandle; 173 import android.os.UserManager; 174 import android.os.UserManagerInternal; 175 import android.os.UserManagerInternal.UserRestrictionsListener; 176 import android.os.storage.StorageManager; 177 import android.provider.ContactsContract.QuickContact; 178 import android.provider.ContactsInternal; 179 import android.provider.Settings; 180 import android.provider.Settings.Global; 181 import android.security.IKeyChainAliasCallback; 182 import android.security.IKeyChainService; 183 import android.security.KeyChain; 184 import android.security.KeyChain.KeyChainConnection; 185 import android.security.KeyStore; 186 import android.security.keymaster.KeymasterCertificateChain; 187 import android.security.keystore.AttestationUtils; 188 import android.security.keystore.KeyGenParameterSpec; 189 import android.security.keystore.ParcelableKeyGenParameterSpec; 190 import android.service.persistentdata.PersistentDataBlockManager; 191 import android.telephony.TelephonyManager; 192 import android.telephony.data.ApnSetting; 193 import android.text.TextUtils; 194 import android.util.ArrayMap; 195 import android.util.ArraySet; 196 import android.util.AtomicFile; 197 import android.util.Log; 198 import android.util.Pair; 199 import android.util.Slog; 200 import android.util.SparseArray; 201 import android.util.Xml; 202 import android.view.IWindowManager; 203 import android.view.accessibility.AccessibilityManager; 204 import android.view.accessibility.IAccessibilityManager; 205 import android.view.inputmethod.InputMethodInfo; 206 import android.view.inputmethod.InputMethodManager; 207 208 import com.android.internal.R; 209 import com.android.internal.annotations.GuardedBy; 210 import com.android.internal.annotations.VisibleForTesting; 211 import com.android.internal.logging.MetricsLogger; 212 import com.android.internal.messages.nano.SystemMessageProto.SystemMessage; 213 import com.android.internal.notification.SystemNotificationChannels; 214 import com.android.internal.os.BackgroundThread; 215 import com.android.internal.statusbar.IStatusBarService; 216 import com.android.internal.telephony.SmsApplication; 217 import com.android.internal.util.DumpUtils; 218 import com.android.internal.util.FastXmlSerializer; 219 import com.android.internal.util.FunctionalUtils.ThrowingRunnable; 220 import com.android.internal.util.JournaledFile; 221 import com.android.internal.util.Preconditions; 222 import com.android.internal.util.XmlUtils; 223 import com.android.internal.widget.LockPatternUtils; 224 import com.android.server.LocalServices; 225 import com.android.server.LockGuard; 226 import com.android.internal.util.StatLogger; 227 import com.android.server.SystemServerInitThreadPool; 228 import com.android.server.SystemService; 229 import com.android.server.devicepolicy.DevicePolicyManagerService.ActiveAdmin.TrustAgentInfo; 230 import com.android.server.net.NetworkPolicyManagerInternal; 231 import com.android.server.pm.UserRestrictionsUtils; 232 import com.android.server.storage.DeviceStorageMonitorInternal; 233 234 import com.google.android.collect.Sets; 235 236 import org.xmlpull.v1.XmlPullParser; 237 import org.xmlpull.v1.XmlPullParserException; 238 import org.xmlpull.v1.XmlSerializer; 239 240 import java.io.File; 241 import java.io.FileDescriptor; 242 import java.io.FileInputStream; 243 import java.io.FileNotFoundException; 244 import java.io.FileOutputStream; 245 import java.io.IOException; 246 import java.io.PrintWriter; 247 import java.lang.reflect.Constructor; 248 import java.nio.charset.StandardCharsets; 249 import java.text.DateFormat; 250 import java.time.LocalDate; 251 import java.util.ArrayList; 252 import java.util.Arrays; 253 import java.util.Collection; 254 import java.util.Collections; 255 import java.util.Date; 256 import java.util.HashMap; 257 import java.util.List; 258 import java.util.Map; 259 import java.util.Map.Entry; 260 import java.util.Objects; 261 import java.util.Set; 262 import java.util.concurrent.CountDownLatch; 263 import java.util.concurrent.TimeUnit; 264 import java.util.concurrent.atomic.AtomicBoolean; 265 import java.util.function.Function; 266 267 /** 268 * Implementation of the device policy APIs. 269 */ 270 public class DevicePolicyManagerService extends BaseIDevicePolicyManager { 271 272 protected static final String LOG_TAG = "DevicePolicyManager"; 273 274 private static final boolean VERBOSE_LOG = false; // DO NOT SUBMIT WITH TRUE 275 276 private static final String DEVICE_POLICIES_XML = "device_policies.xml"; 277 278 private static final String TRANSFER_OWNERSHIP_PARAMETERS_XML = 279 "transfer-ownership-parameters.xml"; 280 281 private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate"; 282 283 private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component"; 284 285 private static final String TAG_LOCK_TASK_FEATURES = "lock-task-features"; 286 287 private static final String TAG_STATUS_BAR = "statusbar"; 288 289 private static final String ATTR_DISABLED = "disabled"; 290 291 private static final String ATTR_NAME = "name"; 292 293 private static final String DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML = 294 "do-not-ask-credentials-on-boot"; 295 296 private static final String TAG_AFFILIATION_ID = "affiliation-id"; 297 298 private static final String TAG_LAST_SECURITY_LOG_RETRIEVAL = "last-security-log-retrieval"; 299 300 private static final String TAG_LAST_BUG_REPORT_REQUEST = "last-bug-report-request"; 301 302 private static final String TAG_LAST_NETWORK_LOG_RETRIEVAL = "last-network-log-retrieval"; 303 304 private static final String TAG_ADMIN_BROADCAST_PENDING = "admin-broadcast-pending"; 305 306 private static final String TAG_CURRENT_INPUT_METHOD_SET = "current-ime-set"; 307 308 private static final String TAG_OWNER_INSTALLED_CA_CERT = "owner-installed-ca-cert"; 309 310 private static final String ATTR_ID = "id"; 311 312 private static final String ATTR_VALUE = "value"; 313 314 private static final String ATTR_ALIAS = "alias"; 315 316 private static final String TAG_INITIALIZATION_BUNDLE = "initialization-bundle"; 317 318 private static final String TAG_PASSWORD_TOKEN_HANDLE = "password-token"; 319 320 private static final String TAG_PASSWORD_VALIDITY = "password-validity"; 321 322 private static final String TAG_TRANSFER_OWNERSHIP_BUNDLE = "transfer-ownership-bundle"; 323 324 private static final int REQUEST_EXPIRE_PASSWORD = 5571; 325 326 private static final long MS_PER_DAY = TimeUnit.DAYS.toMillis(1); 327 328 private static final long EXPIRATION_GRACE_PERIOD_MS = 5 * MS_PER_DAY; // 5 days, in ms 329 330 private static final String ACTION_EXPIRED_PASSWORD_NOTIFICATION 331 = "com.android.server.ACTION_EXPIRED_PASSWORD_NOTIFICATION"; 332 333 private static final String ATTR_PERMISSION_PROVIDER = "permission-provider"; 334 private static final String ATTR_SETUP_COMPLETE = "setup-complete"; 335 private static final String ATTR_PROVISIONING_STATE = "provisioning-state"; 336 private static final String ATTR_PERMISSION_POLICY = "permission-policy"; 337 private static final String ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED = 338 "device-provisioning-config-applied"; 339 private static final String ATTR_DEVICE_PAIRED = "device-paired"; 340 private static final String ATTR_DELEGATED_CERT_INSTALLER = "delegated-cert-installer"; 341 private static final String ATTR_APPLICATION_RESTRICTIONS_MANAGER 342 = "application-restrictions-manager"; 343 344 // Comprehensive list of delegations. 345 private static final String DELEGATIONS[] = { 346 DELEGATION_CERT_INSTALL, 347 DELEGATION_APP_RESTRICTIONS, 348 DELEGATION_BLOCK_UNINSTALL, 349 DELEGATION_ENABLE_SYSTEM_APP, 350 DELEGATION_KEEP_UNINSTALLED_PACKAGES, 351 DELEGATION_PACKAGE_ACCESS, 352 DELEGATION_PERMISSION_GRANT, 353 DELEGATION_INSTALL_EXISTING_PACKAGE, 354 DELEGATION_KEEP_UNINSTALLED_PACKAGES 355 }; 356 357 /** 358 * System property whose value is either "true" or "false", indicating whether 359 * device owner is present. 360 */ 361 private static final String PROPERTY_DEVICE_OWNER_PRESENT = "ro.device_owner"; 362 363 private static final int STATUS_BAR_DISABLE_MASK = 364 StatusBarManager.DISABLE_EXPAND | 365 StatusBarManager.DISABLE_NOTIFICATION_ICONS | 366 StatusBarManager.DISABLE_NOTIFICATION_ALERTS | 367 StatusBarManager.DISABLE_SEARCH; 368 369 private static final int STATUS_BAR_DISABLE2_MASK = 370 StatusBarManager.DISABLE2_QUICK_SETTINGS; 371 372 private static final Set<String> SECURE_SETTINGS_WHITELIST; 373 private static final Set<String> SECURE_SETTINGS_DEVICEOWNER_WHITELIST; 374 private static final Set<String> GLOBAL_SETTINGS_WHITELIST; 375 private static final Set<String> GLOBAL_SETTINGS_DEPRECATED; 376 private static final Set<String> SYSTEM_SETTINGS_WHITELIST; 377 static { 378 SECURE_SETTINGS_WHITELIST = new ArraySet<>(); 379 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.DEFAULT_INPUT_METHOD); 380 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.SKIP_FIRST_USE_HINTS); 381 SECURE_SETTINGS_WHITELIST.add(Settings.Secure.INSTALL_NON_MARKET_APPS); 382 383 SECURE_SETTINGS_DEVICEOWNER_WHITELIST = new ArraySet<>(); 384 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.addAll(SECURE_SETTINGS_WHITELIST); 385 SECURE_SETTINGS_DEVICEOWNER_WHITELIST.add(Settings.Secure.LOCATION_MODE); 386 387 GLOBAL_SETTINGS_WHITELIST = new ArraySet<>(); 388 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.ADB_ENABLED); 389 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME); 390 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.AUTO_TIME_ZONE); 391 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.DATA_ROAMING); 392 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.USB_MASS_STORAGE_ENABLED); 393 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_SLEEP_POLICY); 394 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN); 395 GLOBAL_SETTINGS_WHITELIST.add(Settings.Global.WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN); 396 397 GLOBAL_SETTINGS_DEPRECATED = new ArraySet<>(); 398 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.BLUETOOTH_ON); 399 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED); 400 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.MODE_RINGER); 401 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.NETWORK_PREFERENCE); 402 GLOBAL_SETTINGS_DEPRECATED.add(Settings.Global.WIFI_ON); 403 404 SYSTEM_SETTINGS_WHITELIST = new ArraySet<>(); 405 SYSTEM_SETTINGS_WHITELIST.add(Settings.System.SCREEN_BRIGHTNESS); 406 SYSTEM_SETTINGS_WHITELIST.add(Settings.System.SCREEN_BRIGHTNESS_MODE); 407 SYSTEM_SETTINGS_WHITELIST.add(Settings.System.SCREEN_OFF_TIMEOUT); 408 } 409 410 /** 411 * Keyguard features that when set on a profile affect the profile content or challenge only. 412 * These cannot be set on the managed profile's parent DPM instance 413 */ 414 private static final int PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY = 415 DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS; 416 417 /** Keyguard features that are allowed to be set on a managed profile */ 418 private static final int PROFILE_KEYGUARD_FEATURES = 419 PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY; 420 421 private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000; 422 423 /** 424 * Minimum timeout in milliseconds after which unlocking with weak auth times out, 425 * i.e. the user has to use a strong authentication method like password, PIN or pattern. 426 */ 427 private static final long MINIMUM_STRONG_AUTH_TIMEOUT_MS = TimeUnit.HOURS.toMillis(1); 428 429 /** 430 * Strings logged with {@link 431 * com.android.internal.logging.nano.MetricsProto.MetricsEvent#PROVISIONING_ENTRY_POINT_ADB}. 432 */ 433 private static final String LOG_TAG_PROFILE_OWNER = "profile-owner"; 434 private static final String LOG_TAG_DEVICE_OWNER = "device-owner"; 435 436 final Context mContext; 437 final Injector mInjector; 438 final IPackageManager mIPackageManager; 439 final UserManager mUserManager; 440 final UserManagerInternal mUserManagerInternal; 441 final UsageStatsManagerInternal mUsageStatsManagerInternal; 442 final TelephonyManager mTelephonyManager; 443 private final LockPatternUtils mLockPatternUtils; 444 private final DevicePolicyConstants mConstants; 445 private final DeviceAdminServiceController mDeviceAdminServiceController; 446 private final OverlayPackagesProvider mOverlayPackagesProvider; 447 448 private final DevicePolicyCacheImpl mPolicyCache = new DevicePolicyCacheImpl(); 449 450 /** 451 * Contains (package-user) pairs to remove. An entry (p, u) implies that removal of package p 452 * is requested for user u. 453 */ 454 private final Set<Pair<String, Integer>> mPackagesToRemove = 455 new ArraySet<Pair<String, Integer>>(); 456 457 final LocalService mLocalService; 458 459 // Stores and loads state on device and profile owners. 460 @VisibleForTesting 461 final Owners mOwners; 462 463 private final Binder mToken = new Binder(); 464 465 /** 466 * Whether or not device admin feature is supported. If it isn't return defaults for all 467 * public methods. 468 */ 469 final boolean mHasFeature; 470 471 /** 472 * Whether or not this device is a watch. 473 */ 474 final boolean mIsWatch; 475 476 private final CertificateMonitor mCertificateMonitor; 477 private final SecurityLogMonitor mSecurityLogMonitor; 478 479 @GuardedBy("getLockObject()") 480 private NetworkLogger mNetworkLogger; 481 482 private final AtomicBoolean mRemoteBugreportServiceIsActive = new AtomicBoolean(); 483 private final AtomicBoolean mRemoteBugreportSharingAccepted = new AtomicBoolean(); 484 485 private final SetupContentObserver mSetupContentObserver; 486 487 private static boolean ENABLE_LOCK_GUARD = Build.IS_ENG 488 || (SystemProperties.getInt("debug.dpm.lock_guard", 0) == 1); 489 490 interface Stats { 491 int LOCK_GUARD_GUARD = 0; 492 493 int COUNT = LOCK_GUARD_GUARD + 1; 494 } 495 496 private final StatLogger mStatLogger = new StatLogger(new String[] { 497 "LockGuard.guard()", 498 }); 499 500 private final Object mLockDoNoUseDirectly = LockGuard.installNewLock( 501 LockGuard.INDEX_DPMS, /* doWtf=*/ true); 502 503 final Object getLockObject() { 504 if (ENABLE_LOCK_GUARD) { 505 final long start = mStatLogger.getTime(); 506 LockGuard.guard(LockGuard.INDEX_DPMS); 507 mStatLogger.logDurationStat(Stats.LOCK_GUARD_GUARD, start); 508 } 509 return mLockDoNoUseDirectly; 510 } 511 512 /** 513 * Check if the current thread holds the DPMS lock, and if not, do a WTF. 514 * 515 * (Doing this check too much may be costly, so don't call it in a hot path.) 516 */ 517 final void ensureLocked() { 518 if (Thread.holdsLock(mLockDoNoUseDirectly)) { 519 return; 520 } 521 Slog.wtfStack(LOG_TAG, "Not holding DPMS lock."); 522 } 523 524 @VisibleForTesting 525 final TransferOwnershipMetadataManager mTransferOwnershipMetadataManager; 526 527 private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() { 528 @Override 529 public void run() { 530 if(mRemoteBugreportServiceIsActive.get()) { 531 onBugreportFailed(); 532 } 533 } 534 }; 535 536 /** Listens only if mHasFeature == true. */ 537 private final BroadcastReceiver mRemoteBugreportFinishedReceiver = new BroadcastReceiver() { 538 539 @Override 540 public void onReceive(Context context, Intent intent) { 541 if (DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH.equals(intent.getAction()) 542 && mRemoteBugreportServiceIsActive.get()) { 543 onBugreportFinished(intent); 544 } 545 } 546 }; 547 548 /** Listens only if mHasFeature == true. */ 549 private final BroadcastReceiver mRemoteBugreportConsentReceiver = new BroadcastReceiver() { 550 551 @Override 552 public void onReceive(Context context, Intent intent) { 553 String action = intent.getAction(); 554 mInjector.getNotificationManager().cancel(LOG_TAG, 555 RemoteBugreportUtils.NOTIFICATION_ID); 556 if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED.equals(action)) { 557 onBugreportSharingAccepted(); 558 } else if (DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED.equals(action)) { 559 onBugreportSharingDeclined(); 560 } 561 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 562 } 563 }; 564 565 public static final class Lifecycle extends SystemService { 566 private BaseIDevicePolicyManager mService; 567 568 public Lifecycle(Context context) { 569 super(context); 570 String dpmsClassName = context.getResources() 571 .getString(R.string.config_deviceSpecificDevicePolicyManagerService); 572 if (TextUtils.isEmpty(dpmsClassName)) { 573 dpmsClassName = DevicePolicyManagerService.class.getName(); 574 } 575 try { 576 Class serviceClass = Class.forName(dpmsClassName); 577 Constructor constructor = serviceClass.getConstructor(Context.class); 578 mService = (BaseIDevicePolicyManager) constructor.newInstance(context); 579 } catch (Exception e) { 580 throw new IllegalStateException( 581 "Failed to instantiate DevicePolicyManagerService with class name: " 582 + dpmsClassName, e); 583 } 584 } 585 586 @Override 587 public void onStart() { 588 publishBinderService(Context.DEVICE_POLICY_SERVICE, mService); 589 } 590 591 @Override 592 public void onBootPhase(int phase) { 593 mService.systemReady(phase); 594 } 595 596 @Override 597 public void onStartUser(int userHandle) { 598 mService.handleStartUser(userHandle); 599 } 600 601 @Override 602 public void onUnlockUser(int userHandle) { 603 mService.handleUnlockUser(userHandle); 604 } 605 606 @Override 607 public void onStopUser(int userHandle) { 608 mService.handleStopUser(userHandle); 609 } 610 } 611 612 public static class DevicePolicyData { 613 int mFailedPasswordAttempts = 0; 614 boolean mPasswordValidAtLastCheckpoint = true; 615 616 int mUserHandle; 617 int mPasswordOwner = -1; 618 long mLastMaximumTimeToLock = -1; 619 boolean mUserSetupComplete = false; 620 boolean mPaired = false; 621 int mUserProvisioningState; 622 int mPermissionPolicy; 623 624 boolean mDeviceProvisioningConfigApplied = false; 625 626 final ArrayMap<ComponentName, ActiveAdmin> mAdminMap = new ArrayMap<>(); 627 final ArrayList<ActiveAdmin> mAdminList = new ArrayList<>(); 628 final ArrayList<ComponentName> mRemovingAdmins = new ArrayList<>(); 629 630 // TODO(b/35385311): Keep track of metadata in TrustedCertificateStore instead. 631 final ArraySet<String> mAcceptedCaCertificates = new ArraySet<>(); 632 633 // This is the list of component allowed to start lock task mode. 634 List<String> mLockTaskPackages = new ArrayList<>(); 635 636 // Bitfield of feature flags to be enabled during LockTask mode. 637 // We default on the power button menu, in order to be consistent with pre-P behaviour. 638 int mLockTaskFeatures = DevicePolicyManager.LOCK_TASK_FEATURE_GLOBAL_ACTIONS; 639 640 boolean mStatusBarDisabled = false; 641 642 ComponentName mRestrictionsProvider; 643 644 // Map of delegate package to delegation scopes 645 final ArrayMap<String, List<String>> mDelegationMap = new ArrayMap<>(); 646 647 boolean doNotAskCredentialsOnBoot = false; 648 649 Set<String> mAffiliationIds = new ArraySet<>(); 650 651 long mLastSecurityLogRetrievalTime = -1; 652 653 long mLastBugReportRequestTime = -1; 654 655 long mLastNetworkLogsRetrievalTime = -1; 656 657 boolean mCurrentInputMethodSet = false; 658 659 // TODO(b/35385311): Keep track of metadata in TrustedCertificateStore instead. 660 Set<String> mOwnerInstalledCaCerts = new ArraySet<>(); 661 662 // Used for initialization of users created by createAndManageUser. 663 boolean mAdminBroadcastPending = false; 664 PersistableBundle mInitBundle = null; 665 666 long mPasswordTokenHandle = 0; 667 668 public DevicePolicyData(int userHandle) { 669 mUserHandle = userHandle; 670 } 671 } 672 673 @GuardedBy("getLockObject()") 674 final SparseArray<DevicePolicyData> mUserData = new SparseArray<>(); 675 676 @GuardedBy("getLockObject()") 677 final SparseArray<PasswordMetrics> mUserPasswordMetrics = new SparseArray<>(); 678 679 final Handler mHandler; 680 final Handler mBackgroundHandler; 681 682 /** Listens only if mHasFeature == true. */ 683 final BroadcastReceiver mReceiver = new BroadcastReceiver() { 684 @Override 685 public void onReceive(Context context, Intent intent) { 686 final String action = intent.getAction(); 687 final int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 688 getSendingUserId()); 689 690 /* 691 * Network logging would ideally be started in setDeviceOwnerSystemPropertyLocked(), 692 * however it's too early in the boot process to register with IIpConnectivityMetrics 693 * to listen for events. 694 */ 695 if (Intent.ACTION_USER_STARTED.equals(action) 696 && userHandle == mOwners.getDeviceOwnerUserId()) { 697 synchronized (getLockObject()) { 698 if (isNetworkLoggingEnabledInternalLocked()) { 699 setNetworkLoggingActiveInternal(true); 700 } 701 } 702 } 703 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 704 && userHandle == mOwners.getDeviceOwnerUserId() 705 && getDeviceOwnerRemoteBugreportUri() != null) { 706 IntentFilter filterConsent = new IntentFilter(); 707 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 708 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 709 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 710 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 711 RemoteBugreportUtils.NOTIFICATION_ID, 712 RemoteBugreportUtils.buildNotification(mContext, 713 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 714 UserHandle.ALL); 715 } 716 if (Intent.ACTION_BOOT_COMPLETED.equals(action) 717 || ACTION_EXPIRED_PASSWORD_NOTIFICATION.equals(action)) { 718 if (VERBOSE_LOG) { 719 Slog.v(LOG_TAG, "Sending password expiration notifications for action " 720 + action + " for user " + userHandle); 721 } 722 mHandler.post(new Runnable() { 723 @Override 724 public void run() { 725 handlePasswordExpirationNotification(userHandle); 726 } 727 }); 728 } 729 730 if (Intent.ACTION_USER_ADDED.equals(action)) { 731 sendDeviceOwnerUserCommand(DeviceAdminReceiver.ACTION_USER_ADDED, userHandle); 732 synchronized (getLockObject()) { 733 // It might take a while for the user to become affiliated. Make security 734 // and network logging unavailable in the meantime. 735 maybePauseDeviceWideLoggingLocked(); 736 } 737 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 738 sendDeviceOwnerUserCommand(DeviceAdminReceiver.ACTION_USER_REMOVED, userHandle); 739 synchronized (getLockObject()) { 740 // Check whether the user is affiliated, *before* removing its data. 741 boolean isRemovedUserAffiliated = isUserAffiliatedWithDeviceLocked(userHandle); 742 removeUserData(userHandle); 743 if (!isRemovedUserAffiliated) { 744 // We discard the logs when unaffiliated users are deleted (so that the 745 // device owner cannot retrieve data about that user after it's gone). 746 discardDeviceWideLogsLocked(); 747 // Resume logging if all remaining users are affiliated. 748 maybeResumeDeviceWideLoggingLocked(); 749 } 750 } 751 } else if (Intent.ACTION_USER_STARTED.equals(action)) { 752 sendDeviceOwnerUserCommand(DeviceAdminReceiver.ACTION_USER_STARTED, userHandle); 753 synchronized (getLockObject()) { 754 maybeSendAdminEnabledBroadcastLocked(userHandle); 755 // Reset the policy data 756 mUserData.remove(userHandle); 757 } 758 handlePackagesChanged(null /* check all admins */, userHandle); 759 } else if (Intent.ACTION_USER_STOPPED.equals(action)) { 760 sendDeviceOwnerUserCommand(DeviceAdminReceiver.ACTION_USER_STOPPED, userHandle); 761 } else if (Intent.ACTION_USER_SWITCHED.equals(action)) { 762 sendDeviceOwnerUserCommand(DeviceAdminReceiver.ACTION_USER_SWITCHED, userHandle); 763 } else if (Intent.ACTION_USER_UNLOCKED.equals(action)) { 764 synchronized (getLockObject()) { 765 maybeSendAdminEnabledBroadcastLocked(userHandle); 766 } 767 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 768 handlePackagesChanged(null /* check all admins */, userHandle); 769 } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 770 || (Intent.ACTION_PACKAGE_ADDED.equals(action) 771 && intent.getBooleanExtra(Intent.EXTRA_REPLACING, false))) { 772 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 773 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action) 774 && !intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 775 handlePackagesChanged(intent.getData().getSchemeSpecificPart(), userHandle); 776 } else if (Intent.ACTION_MANAGED_PROFILE_ADDED.equals(action)) { 777 clearWipeProfileNotification(); 778 } else if (Intent.ACTION_DATE_CHANGED.equals(action) 779 || Intent.ACTION_TIME_CHANGED.equals(action)) { 780 // Update freeze period record when clock naturally progresses to the next day 781 // (ACTION_DATE_CHANGED), or when manual clock adjustment is made 782 // (ACTION_TIME_CHANGED) 783 updateSystemUpdateFreezePeriodsRecord(/* saveIfChanged */ true); 784 } 785 786 } 787 788 private void sendDeviceOwnerUserCommand(String action, int userHandle) { 789 synchronized (getLockObject()) { 790 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 791 if (deviceOwner != null) { 792 Bundle extras = new Bundle(); 793 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 794 sendAdminCommandLocked(deviceOwner, action, extras, /* result */ null, 795 /* inForeground */ true); 796 } 797 } 798 } 799 }; 800 801 protected static class RestrictionsListener implements UserRestrictionsListener { 802 private Context mContext; 803 804 public RestrictionsListener(Context context) { 805 mContext = context; 806 } 807 808 public void onUserRestrictionsChanged(int userId, Bundle newRestrictions, 809 Bundle prevRestrictions) { 810 final boolean newlyDisallowed = 811 newRestrictions.getBoolean(UserManager.DISALLOW_SHARE_INTO_MANAGED_PROFILE); 812 final boolean previouslyDisallowed = 813 prevRestrictions.getBoolean(UserManager.DISALLOW_SHARE_INTO_MANAGED_PROFILE); 814 final boolean restrictionChanged = (newlyDisallowed != previouslyDisallowed); 815 816 if (restrictionChanged) { 817 // Notify ManagedProvisioning to update the built-in cross profile intent filters. 818 Intent intent = new Intent( 819 DevicePolicyManager.ACTION_DATA_SHARING_RESTRICTION_CHANGED); 820 intent.setPackage(getManagedProvisioningPackage(mContext)); 821 intent.putExtra(Intent.EXTRA_USER_ID, userId); 822 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 823 mContext.sendBroadcastAsUser(intent, UserHandle.SYSTEM); 824 } 825 } 826 } 827 828 static class ActiveAdmin { 829 private static final String TAG_DISABLE_KEYGUARD_FEATURES = "disable-keyguard-features"; 830 private static final String TAG_TEST_ONLY_ADMIN = "test-only-admin"; 831 private static final String TAG_DISABLE_CAMERA = "disable-camera"; 832 private static final String TAG_DISABLE_CALLER_ID = "disable-caller-id"; 833 private static final String TAG_DISABLE_CONTACTS_SEARCH = "disable-contacts-search"; 834 private static final String TAG_DISABLE_BLUETOOTH_CONTACT_SHARING 835 = "disable-bt-contacts-sharing"; 836 private static final String TAG_DISABLE_SCREEN_CAPTURE = "disable-screen-capture"; 837 private static final String TAG_DISABLE_ACCOUNT_MANAGEMENT = "disable-account-management"; 838 private static final String TAG_REQUIRE_AUTO_TIME = "require_auto_time"; 839 private static final String TAG_FORCE_EPHEMERAL_USERS = "force_ephemeral_users"; 840 private static final String TAG_IS_NETWORK_LOGGING_ENABLED = "is_network_logging_enabled"; 841 private static final String TAG_ACCOUNT_TYPE = "account-type"; 842 private static final String TAG_PERMITTED_ACCESSIBILITY_SERVICES 843 = "permitted-accessiblity-services"; 844 private static final String TAG_ENCRYPTION_REQUESTED = "encryption-requested"; 845 private static final String TAG_MANAGE_TRUST_AGENT_FEATURES = "manage-trust-agent-features"; 846 private static final String TAG_TRUST_AGENT_COMPONENT_OPTIONS = "trust-agent-component-options"; 847 private static final String TAG_TRUST_AGENT_COMPONENT = "component"; 848 private static final String TAG_PASSWORD_EXPIRATION_DATE = "password-expiration-date"; 849 private static final String TAG_PASSWORD_EXPIRATION_TIMEOUT = "password-expiration-timeout"; 850 private static final String TAG_GLOBAL_PROXY_EXCLUSION_LIST = "global-proxy-exclusion-list"; 851 private static final String TAG_GLOBAL_PROXY_SPEC = "global-proxy-spec"; 852 private static final String TAG_SPECIFIES_GLOBAL_PROXY = "specifies-global-proxy"; 853 private static final String TAG_PERMITTED_IMES = "permitted-imes"; 854 private static final String TAG_PERMITTED_NOTIFICATION_LISTENERS = 855 "permitted-notification-listeners"; 856 private static final String TAG_MAX_FAILED_PASSWORD_WIPE = "max-failed-password-wipe"; 857 private static final String TAG_MAX_TIME_TO_UNLOCK = "max-time-to-unlock"; 858 private static final String TAG_STRONG_AUTH_UNLOCK_TIMEOUT = "strong-auth-unlock-timeout"; 859 private static final String TAG_MIN_PASSWORD_NONLETTER = "min-password-nonletter"; 860 private static final String TAG_MIN_PASSWORD_SYMBOLS = "min-password-symbols"; 861 private static final String TAG_MIN_PASSWORD_NUMERIC = "min-password-numeric"; 862 private static final String TAG_MIN_PASSWORD_LETTERS = "min-password-letters"; 863 private static final String TAG_MIN_PASSWORD_LOWERCASE = "min-password-lowercase"; 864 private static final String TAG_MIN_PASSWORD_UPPERCASE = "min-password-uppercase"; 865 private static final String TAG_PASSWORD_HISTORY_LENGTH = "password-history-length"; 866 private static final String TAG_MIN_PASSWORD_LENGTH = "min-password-length"; 867 private static final String ATTR_VALUE = "value"; 868 private static final String TAG_PASSWORD_QUALITY = "password-quality"; 869 private static final String TAG_POLICIES = "policies"; 870 private static final String TAG_CROSS_PROFILE_WIDGET_PROVIDERS = 871 "cross-profile-widget-providers"; 872 private static final String TAG_PROVIDER = "provider"; 873 private static final String TAG_PACKAGE_LIST_ITEM = "item"; 874 private static final String TAG_KEEP_UNINSTALLED_PACKAGES = "keep-uninstalled-packages"; 875 private static final String TAG_USER_RESTRICTIONS = "user-restrictions"; 876 private static final String TAG_DEFAULT_ENABLED_USER_RESTRICTIONS = 877 "default-enabled-user-restrictions"; 878 private static final String TAG_RESTRICTION = "restriction"; 879 private static final String TAG_SHORT_SUPPORT_MESSAGE = "short-support-message"; 880 private static final String TAG_LONG_SUPPORT_MESSAGE = "long-support-message"; 881 private static final String TAG_PARENT_ADMIN = "parent-admin"; 882 private static final String TAG_ORGANIZATION_COLOR = "organization-color"; 883 private static final String TAG_ORGANIZATION_NAME = "organization-name"; 884 private static final String ATTR_LAST_NETWORK_LOGGING_NOTIFICATION = "last-notification"; 885 private static final String ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS = "num-notifications"; 886 private static final String TAG_IS_LOGOUT_ENABLED = "is_logout_enabled"; 887 private static final String TAG_MANDATORY_BACKUP_TRANSPORT = "mandatory_backup_transport"; 888 private static final String TAG_START_USER_SESSION_MESSAGE = "start_user_session_message"; 889 private static final String TAG_END_USER_SESSION_MESSAGE = "end_user_session_message"; 890 private static final String TAG_METERED_DATA_DISABLED_PACKAGES 891 = "metered_data_disabled_packages"; 892 893 DeviceAdminInfo info; 894 895 896 static final int DEF_PASSWORD_HISTORY_LENGTH = 0; 897 int passwordHistoryLength = DEF_PASSWORD_HISTORY_LENGTH; 898 899 static final int DEF_MINIMUM_PASSWORD_LENGTH = 0; 900 static final int DEF_MINIMUM_PASSWORD_LETTERS = 1; 901 static final int DEF_MINIMUM_PASSWORD_UPPER_CASE = 0; 902 static final int DEF_MINIMUM_PASSWORD_LOWER_CASE = 0; 903 static final int DEF_MINIMUM_PASSWORD_NUMERIC = 1; 904 static final int DEF_MINIMUM_PASSWORD_SYMBOLS = 1; 905 static final int DEF_MINIMUM_PASSWORD_NON_LETTER = 0; 906 @NonNull 907 PasswordMetrics minimumPasswordMetrics = new PasswordMetrics( 908 PASSWORD_QUALITY_UNSPECIFIED, DEF_MINIMUM_PASSWORD_LENGTH, 909 DEF_MINIMUM_PASSWORD_LETTERS, DEF_MINIMUM_PASSWORD_UPPER_CASE, 910 DEF_MINIMUM_PASSWORD_LOWER_CASE, DEF_MINIMUM_PASSWORD_NUMERIC, 911 DEF_MINIMUM_PASSWORD_SYMBOLS, DEF_MINIMUM_PASSWORD_NON_LETTER); 912 913 static final long DEF_MAXIMUM_TIME_TO_UNLOCK = 0; 914 long maximumTimeToUnlock = DEF_MAXIMUM_TIME_TO_UNLOCK; 915 916 long strongAuthUnlockTimeout = 0; // admin doesn't participate by default 917 918 static final int DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE = 0; 919 int maximumFailedPasswordsForWipe = DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE; 920 921 static final long DEF_PASSWORD_EXPIRATION_TIMEOUT = 0; 922 long passwordExpirationTimeout = DEF_PASSWORD_EXPIRATION_TIMEOUT; 923 924 static final long DEF_PASSWORD_EXPIRATION_DATE = 0; 925 long passwordExpirationDate = DEF_PASSWORD_EXPIRATION_DATE; 926 927 static final int DEF_KEYGUARD_FEATURES_DISABLED = 0; // none 928 929 int disabledKeyguardFeatures = DEF_KEYGUARD_FEATURES_DISABLED; 930 931 boolean encryptionRequested = false; 932 boolean testOnlyAdmin = false; 933 boolean disableCamera = false; 934 boolean disableCallerId = false; 935 boolean disableContactsSearch = false; 936 boolean disableBluetoothContactSharing = true; 937 boolean disableScreenCapture = false; // Can only be set by a device/profile owner. 938 boolean requireAutoTime = false; // Can only be set by a device owner. 939 boolean forceEphemeralUsers = false; // Can only be set by a device owner. 940 boolean isNetworkLoggingEnabled = false; // Can only be set by a device owner. 941 boolean isLogoutEnabled = false; // Can only be set by a device owner. 942 943 // one notification after enabling + one more after reboots 944 static final int DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN = 2; 945 int numNetworkLoggingNotifications = 0; 946 long lastNetworkLoggingNotificationTimeMs = 0; // Time in milliseconds since epoch 947 948 ActiveAdmin parentAdmin; 949 final boolean isParent; 950 951 static class TrustAgentInfo { 952 public PersistableBundle options; 953 TrustAgentInfo(PersistableBundle bundle) { 954 options = bundle; 955 } 956 } 957 958 // The list of packages which are not allowed to use metered data. 959 List<String> meteredDisabledPackages; 960 961 final Set<String> accountTypesWithManagementDisabled = new ArraySet<>(); 962 963 // The list of permitted accessibility services package namesas set by a profile 964 // or device owner. Null means all accessibility services are allowed, empty means 965 // none except system services are allowed. 966 List<String> permittedAccessiblityServices; 967 968 // The list of permitted input methods package names as set by a profile or device owner. 969 // Null means all input methods are allowed, empty means none except system imes are 970 // allowed. 971 List<String> permittedInputMethods; 972 973 // The list of packages allowed to use a NotificationListenerService to receive events for 974 // notifications from this user. Null means that all packages are allowed. Empty list means 975 // that only packages from the system are allowed. 976 List<String> permittedNotificationListeners; 977 978 // List of package names to keep cached. 979 List<String> keepUninstalledPackages; 980 981 // TODO: review implementation decisions with frameworks team 982 boolean specifiesGlobalProxy = false; 983 String globalProxySpec = null; 984 String globalProxyExclusionList = null; 985 986 ArrayMap<String, TrustAgentInfo> trustAgentInfos = new ArrayMap<>(); 987 988 List<String> crossProfileWidgetProviders; 989 990 Bundle userRestrictions; 991 992 // User restrictions that have already been enabled by default for this admin (either when 993 // setting the device or profile owner, or during a system update if one of those "enabled 994 // by default" restrictions is newly added). 995 final Set<String> defaultEnabledRestrictionsAlreadySet = new ArraySet<>(); 996 997 // Support text provided by the admin to display to the user. 998 CharSequence shortSupportMessage = null; 999 CharSequence longSupportMessage = null; 1000 1001 // Background color of confirm credentials screen. Default: teal. 1002 static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B"); 1003 int organizationColor = DEF_ORGANIZATION_COLOR; 1004 1005 // Default title of confirm credentials screen 1006 String organizationName = null; 1007 1008 // The component name of the backup transport which has to be used if backups are mandatory 1009 // or null if backups are not mandatory. 1010 ComponentName mandatoryBackupTransport = null; 1011 1012 // Message for user switcher 1013 String startUserSessionMessage = null; 1014 String endUserSessionMessage = null; 1015 1016 ActiveAdmin(DeviceAdminInfo _info, boolean parent) { 1017 info = _info; 1018 isParent = parent; 1019 } 1020 1021 ActiveAdmin getParentActiveAdmin() { 1022 Preconditions.checkState(!isParent); 1023 1024 if (parentAdmin == null) { 1025 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1026 } 1027 return parentAdmin; 1028 } 1029 1030 boolean hasParentActiveAdmin() { 1031 return parentAdmin != null; 1032 } 1033 1034 int getUid() { return info.getActivityInfo().applicationInfo.uid; } 1035 1036 public UserHandle getUserHandle() { 1037 return UserHandle.of(UserHandle.getUserId(info.getActivityInfo().applicationInfo.uid)); 1038 } 1039 1040 void writeToXml(XmlSerializer out) 1041 throws IllegalArgumentException, IllegalStateException, IOException { 1042 out.startTag(null, TAG_POLICIES); 1043 info.writePoliciesToXml(out); 1044 out.endTag(null, TAG_POLICIES); 1045 if (minimumPasswordMetrics.quality != PASSWORD_QUALITY_UNSPECIFIED) { 1046 out.startTag(null, TAG_PASSWORD_QUALITY); 1047 out.attribute(null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.quality)); 1048 out.endTag(null, TAG_PASSWORD_QUALITY); 1049 if (minimumPasswordMetrics.length != DEF_MINIMUM_PASSWORD_LENGTH) { 1050 out.startTag(null, TAG_MIN_PASSWORD_LENGTH); 1051 out.attribute( 1052 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.length)); 1053 out.endTag(null, TAG_MIN_PASSWORD_LENGTH); 1054 } 1055 if(passwordHistoryLength != DEF_PASSWORD_HISTORY_LENGTH) { 1056 out.startTag(null, TAG_PASSWORD_HISTORY_LENGTH); 1057 out.attribute(null, ATTR_VALUE, Integer.toString(passwordHistoryLength)); 1058 out.endTag(null, TAG_PASSWORD_HISTORY_LENGTH); 1059 } 1060 if (minimumPasswordMetrics.upperCase != DEF_MINIMUM_PASSWORD_UPPER_CASE) { 1061 out.startTag(null, TAG_MIN_PASSWORD_UPPERCASE); 1062 out.attribute( 1063 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.upperCase)); 1064 out.endTag(null, TAG_MIN_PASSWORD_UPPERCASE); 1065 } 1066 if (minimumPasswordMetrics.lowerCase != DEF_MINIMUM_PASSWORD_LOWER_CASE) { 1067 out.startTag(null, TAG_MIN_PASSWORD_LOWERCASE); 1068 out.attribute( 1069 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.lowerCase)); 1070 out.endTag(null, TAG_MIN_PASSWORD_LOWERCASE); 1071 } 1072 if (minimumPasswordMetrics.letters != DEF_MINIMUM_PASSWORD_LETTERS) { 1073 out.startTag(null, TAG_MIN_PASSWORD_LETTERS); 1074 out.attribute( 1075 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.letters)); 1076 out.endTag(null, TAG_MIN_PASSWORD_LETTERS); 1077 } 1078 if (minimumPasswordMetrics.numeric != DEF_MINIMUM_PASSWORD_NUMERIC) { 1079 out.startTag(null, TAG_MIN_PASSWORD_NUMERIC); 1080 out.attribute( 1081 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.numeric)); 1082 out.endTag(null, TAG_MIN_PASSWORD_NUMERIC); 1083 } 1084 if (minimumPasswordMetrics.symbols != DEF_MINIMUM_PASSWORD_SYMBOLS) { 1085 out.startTag(null, TAG_MIN_PASSWORD_SYMBOLS); 1086 out.attribute( 1087 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.symbols)); 1088 out.endTag(null, TAG_MIN_PASSWORD_SYMBOLS); 1089 } 1090 if (minimumPasswordMetrics.nonLetter > DEF_MINIMUM_PASSWORD_NON_LETTER) { 1091 out.startTag(null, TAG_MIN_PASSWORD_NONLETTER); 1092 out.attribute( 1093 null, ATTR_VALUE, Integer.toString(minimumPasswordMetrics.nonLetter)); 1094 out.endTag(null, TAG_MIN_PASSWORD_NONLETTER); 1095 } 1096 } 1097 if (maximumTimeToUnlock != DEF_MAXIMUM_TIME_TO_UNLOCK) { 1098 out.startTag(null, TAG_MAX_TIME_TO_UNLOCK); 1099 out.attribute(null, ATTR_VALUE, Long.toString(maximumTimeToUnlock)); 1100 out.endTag(null, TAG_MAX_TIME_TO_UNLOCK); 1101 } 1102 if (strongAuthUnlockTimeout != DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 1103 out.startTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 1104 out.attribute(null, ATTR_VALUE, Long.toString(strongAuthUnlockTimeout)); 1105 out.endTag(null, TAG_STRONG_AUTH_UNLOCK_TIMEOUT); 1106 } 1107 if (maximumFailedPasswordsForWipe != DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 1108 out.startTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 1109 out.attribute(null, ATTR_VALUE, Integer.toString(maximumFailedPasswordsForWipe)); 1110 out.endTag(null, TAG_MAX_FAILED_PASSWORD_WIPE); 1111 } 1112 if (specifiesGlobalProxy) { 1113 out.startTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 1114 out.attribute(null, ATTR_VALUE, Boolean.toString(specifiesGlobalProxy)); 1115 out.endTag(null, TAG_SPECIFIES_GLOBAL_PROXY); 1116 if (globalProxySpec != null) { 1117 out.startTag(null, TAG_GLOBAL_PROXY_SPEC); 1118 out.attribute(null, ATTR_VALUE, globalProxySpec); 1119 out.endTag(null, TAG_GLOBAL_PROXY_SPEC); 1120 } 1121 if (globalProxyExclusionList != null) { 1122 out.startTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 1123 out.attribute(null, ATTR_VALUE, globalProxyExclusionList); 1124 out.endTag(null, TAG_GLOBAL_PROXY_EXCLUSION_LIST); 1125 } 1126 } 1127 if (passwordExpirationTimeout != DEF_PASSWORD_EXPIRATION_TIMEOUT) { 1128 out.startTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 1129 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationTimeout)); 1130 out.endTag(null, TAG_PASSWORD_EXPIRATION_TIMEOUT); 1131 } 1132 if (passwordExpirationDate != DEF_PASSWORD_EXPIRATION_DATE) { 1133 out.startTag(null, TAG_PASSWORD_EXPIRATION_DATE); 1134 out.attribute(null, ATTR_VALUE, Long.toString(passwordExpirationDate)); 1135 out.endTag(null, TAG_PASSWORD_EXPIRATION_DATE); 1136 } 1137 if (encryptionRequested) { 1138 out.startTag(null, TAG_ENCRYPTION_REQUESTED); 1139 out.attribute(null, ATTR_VALUE, Boolean.toString(encryptionRequested)); 1140 out.endTag(null, TAG_ENCRYPTION_REQUESTED); 1141 } 1142 if (testOnlyAdmin) { 1143 out.startTag(null, TAG_TEST_ONLY_ADMIN); 1144 out.attribute(null, ATTR_VALUE, Boolean.toString(testOnlyAdmin)); 1145 out.endTag(null, TAG_TEST_ONLY_ADMIN); 1146 } 1147 if (disableCamera) { 1148 out.startTag(null, TAG_DISABLE_CAMERA); 1149 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCamera)); 1150 out.endTag(null, TAG_DISABLE_CAMERA); 1151 } 1152 if (disableCallerId) { 1153 out.startTag(null, TAG_DISABLE_CALLER_ID); 1154 out.attribute(null, ATTR_VALUE, Boolean.toString(disableCallerId)); 1155 out.endTag(null, TAG_DISABLE_CALLER_ID); 1156 } 1157 if (disableContactsSearch) { 1158 out.startTag(null, TAG_DISABLE_CONTACTS_SEARCH); 1159 out.attribute(null, ATTR_VALUE, Boolean.toString(disableContactsSearch)); 1160 out.endTag(null, TAG_DISABLE_CONTACTS_SEARCH); 1161 } 1162 if (!disableBluetoothContactSharing) { 1163 out.startTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 1164 out.attribute(null, ATTR_VALUE, 1165 Boolean.toString(disableBluetoothContactSharing)); 1166 out.endTag(null, TAG_DISABLE_BLUETOOTH_CONTACT_SHARING); 1167 } 1168 if (disableScreenCapture) { 1169 out.startTag(null, TAG_DISABLE_SCREEN_CAPTURE); 1170 out.attribute(null, ATTR_VALUE, Boolean.toString(disableScreenCapture)); 1171 out.endTag(null, TAG_DISABLE_SCREEN_CAPTURE); 1172 } 1173 if (requireAutoTime) { 1174 out.startTag(null, TAG_REQUIRE_AUTO_TIME); 1175 out.attribute(null, ATTR_VALUE, Boolean.toString(requireAutoTime)); 1176 out.endTag(null, TAG_REQUIRE_AUTO_TIME); 1177 } 1178 if (forceEphemeralUsers) { 1179 out.startTag(null, TAG_FORCE_EPHEMERAL_USERS); 1180 out.attribute(null, ATTR_VALUE, Boolean.toString(forceEphemeralUsers)); 1181 out.endTag(null, TAG_FORCE_EPHEMERAL_USERS); 1182 } 1183 if (isNetworkLoggingEnabled) { 1184 out.startTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 1185 out.attribute(null, ATTR_VALUE, Boolean.toString(isNetworkLoggingEnabled)); 1186 out.attribute(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS, 1187 Integer.toString(numNetworkLoggingNotifications)); 1188 out.attribute(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION, 1189 Long.toString(lastNetworkLoggingNotificationTimeMs)); 1190 out.endTag(null, TAG_IS_NETWORK_LOGGING_ENABLED); 1191 } 1192 if (disabledKeyguardFeatures != DEF_KEYGUARD_FEATURES_DISABLED) { 1193 out.startTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 1194 out.attribute(null, ATTR_VALUE, Integer.toString(disabledKeyguardFeatures)); 1195 out.endTag(null, TAG_DISABLE_KEYGUARD_FEATURES); 1196 } 1197 if (!accountTypesWithManagementDisabled.isEmpty()) { 1198 out.startTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 1199 writeAttributeValuesToXml( 1200 out, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1201 out.endTag(null, TAG_DISABLE_ACCOUNT_MANAGEMENT); 1202 } 1203 if (!trustAgentInfos.isEmpty()) { 1204 Set<Entry<String, TrustAgentInfo>> set = trustAgentInfos.entrySet(); 1205 out.startTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1206 for (Entry<String, TrustAgentInfo> entry : set) { 1207 TrustAgentInfo trustAgentInfo = entry.getValue(); 1208 out.startTag(null, TAG_TRUST_AGENT_COMPONENT); 1209 out.attribute(null, ATTR_VALUE, entry.getKey()); 1210 if (trustAgentInfo.options != null) { 1211 out.startTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1212 try { 1213 trustAgentInfo.options.saveToXml(out); 1214 } catch (XmlPullParserException e) { 1215 Log.e(LOG_TAG, "Failed to save TrustAgent options", e); 1216 } 1217 out.endTag(null, TAG_TRUST_AGENT_COMPONENT_OPTIONS); 1218 } 1219 out.endTag(null, TAG_TRUST_AGENT_COMPONENT); 1220 } 1221 out.endTag(null, TAG_MANAGE_TRUST_AGENT_FEATURES); 1222 } 1223 if (crossProfileWidgetProviders != null && !crossProfileWidgetProviders.isEmpty()) { 1224 out.startTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1225 writeAttributeValuesToXml(out, TAG_PROVIDER, crossProfileWidgetProviders); 1226 out.endTag(null, TAG_CROSS_PROFILE_WIDGET_PROVIDERS); 1227 } 1228 writePackageListToXml(out, TAG_PERMITTED_ACCESSIBILITY_SERVICES, 1229 permittedAccessiblityServices); 1230 writePackageListToXml(out, TAG_PERMITTED_IMES, permittedInputMethods); 1231 writePackageListToXml(out, TAG_PERMITTED_NOTIFICATION_LISTENERS, 1232 permittedNotificationListeners); 1233 writePackageListToXml(out, TAG_KEEP_UNINSTALLED_PACKAGES, keepUninstalledPackages); 1234 writePackageListToXml(out, TAG_METERED_DATA_DISABLED_PACKAGES, meteredDisabledPackages); 1235 if (hasUserRestrictions()) { 1236 UserRestrictionsUtils.writeRestrictions( 1237 out, userRestrictions, TAG_USER_RESTRICTIONS); 1238 } 1239 if (!defaultEnabledRestrictionsAlreadySet.isEmpty()) { 1240 out.startTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1241 writeAttributeValuesToXml( 1242 out, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1243 out.endTag(null, TAG_DEFAULT_ENABLED_USER_RESTRICTIONS); 1244 } 1245 if (!TextUtils.isEmpty(shortSupportMessage)) { 1246 out.startTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1247 out.text(shortSupportMessage.toString()); 1248 out.endTag(null, TAG_SHORT_SUPPORT_MESSAGE); 1249 } 1250 if (!TextUtils.isEmpty(longSupportMessage)) { 1251 out.startTag(null, TAG_LONG_SUPPORT_MESSAGE); 1252 out.text(longSupportMessage.toString()); 1253 out.endTag(null, TAG_LONG_SUPPORT_MESSAGE); 1254 } 1255 if (parentAdmin != null) { 1256 out.startTag(null, TAG_PARENT_ADMIN); 1257 parentAdmin.writeToXml(out); 1258 out.endTag(null, TAG_PARENT_ADMIN); 1259 } 1260 if (organizationColor != DEF_ORGANIZATION_COLOR) { 1261 out.startTag(null, TAG_ORGANIZATION_COLOR); 1262 out.attribute(null, ATTR_VALUE, Integer.toString(organizationColor)); 1263 out.endTag(null, TAG_ORGANIZATION_COLOR); 1264 } 1265 if (organizationName != null) { 1266 out.startTag(null, TAG_ORGANIZATION_NAME); 1267 out.text(organizationName); 1268 out.endTag(null, TAG_ORGANIZATION_NAME); 1269 } 1270 if (isLogoutEnabled) { 1271 out.startTag(null, TAG_IS_LOGOUT_ENABLED); 1272 out.attribute(null, ATTR_VALUE, Boolean.toString(isLogoutEnabled)); 1273 out.endTag(null, TAG_IS_LOGOUT_ENABLED); 1274 } 1275 if (mandatoryBackupTransport != null) { 1276 out.startTag(null, TAG_MANDATORY_BACKUP_TRANSPORT); 1277 out.attribute(null, ATTR_VALUE, mandatoryBackupTransport.flattenToString()); 1278 out.endTag(null, TAG_MANDATORY_BACKUP_TRANSPORT); 1279 } 1280 if (startUserSessionMessage != null) { 1281 out.startTag(null, TAG_START_USER_SESSION_MESSAGE); 1282 out.text(startUserSessionMessage); 1283 out.endTag(null, TAG_START_USER_SESSION_MESSAGE); 1284 } 1285 if (endUserSessionMessage != null) { 1286 out.startTag(null, TAG_END_USER_SESSION_MESSAGE); 1287 out.text(endUserSessionMessage); 1288 out.endTag(null, TAG_END_USER_SESSION_MESSAGE); 1289 } 1290 } 1291 1292 void writePackageListToXml(XmlSerializer out, String outerTag, 1293 List<String> packageList) 1294 throws IllegalArgumentException, IllegalStateException, IOException { 1295 if (packageList == null) { 1296 return; 1297 } 1298 1299 out.startTag(null, outerTag); 1300 writeAttributeValuesToXml(out, TAG_PACKAGE_LIST_ITEM, packageList); 1301 out.endTag(null, outerTag); 1302 } 1303 1304 void writeAttributeValuesToXml(XmlSerializer out, String tag, 1305 @NonNull Collection<String> values) throws IOException { 1306 for (String value : values) { 1307 out.startTag(null, tag); 1308 out.attribute(null, ATTR_VALUE, value); 1309 out.endTag(null, tag); 1310 } 1311 } 1312 1313 void readFromXml(XmlPullParser parser) 1314 throws XmlPullParserException, IOException { 1315 int outerDepth = parser.getDepth(); 1316 int type; 1317 while ((type=parser.next()) != END_DOCUMENT 1318 && (type != END_TAG || parser.getDepth() > outerDepth)) { 1319 if (type == END_TAG || type == TEXT) { 1320 continue; 1321 } 1322 String tag = parser.getName(); 1323 if (TAG_POLICIES.equals(tag)) { 1324 info.readPoliciesFromXml(parser); 1325 } else if (TAG_PASSWORD_QUALITY.equals(tag)) { 1326 minimumPasswordMetrics.quality = Integer.parseInt( 1327 parser.getAttributeValue(null, ATTR_VALUE)); 1328 } else if (TAG_MIN_PASSWORD_LENGTH.equals(tag)) { 1329 minimumPasswordMetrics.length = Integer.parseInt( 1330 parser.getAttributeValue(null, ATTR_VALUE)); 1331 } else if (TAG_PASSWORD_HISTORY_LENGTH.equals(tag)) { 1332 passwordHistoryLength = Integer.parseInt( 1333 parser.getAttributeValue(null, ATTR_VALUE)); 1334 } else if (TAG_MIN_PASSWORD_UPPERCASE.equals(tag)) { 1335 minimumPasswordMetrics.upperCase = Integer.parseInt( 1336 parser.getAttributeValue(null, ATTR_VALUE)); 1337 } else if (TAG_MIN_PASSWORD_LOWERCASE.equals(tag)) { 1338 minimumPasswordMetrics.lowerCase = Integer.parseInt( 1339 parser.getAttributeValue(null, ATTR_VALUE)); 1340 } else if (TAG_MIN_PASSWORD_LETTERS.equals(tag)) { 1341 minimumPasswordMetrics.letters = Integer.parseInt( 1342 parser.getAttributeValue(null, ATTR_VALUE)); 1343 } else if (TAG_MIN_PASSWORD_NUMERIC.equals(tag)) { 1344 minimumPasswordMetrics.numeric = Integer.parseInt( 1345 parser.getAttributeValue(null, ATTR_VALUE)); 1346 } else if (TAG_MIN_PASSWORD_SYMBOLS.equals(tag)) { 1347 minimumPasswordMetrics.symbols = Integer.parseInt( 1348 parser.getAttributeValue(null, ATTR_VALUE)); 1349 } else if (TAG_MIN_PASSWORD_NONLETTER.equals(tag)) { 1350 minimumPasswordMetrics.nonLetter = Integer.parseInt( 1351 parser.getAttributeValue(null, ATTR_VALUE)); 1352 }else if (TAG_MAX_TIME_TO_UNLOCK.equals(tag)) { 1353 maximumTimeToUnlock = Long.parseLong( 1354 parser.getAttributeValue(null, ATTR_VALUE)); 1355 } else if (TAG_STRONG_AUTH_UNLOCK_TIMEOUT.equals(tag)) { 1356 strongAuthUnlockTimeout = Long.parseLong( 1357 parser.getAttributeValue(null, ATTR_VALUE)); 1358 } else if (TAG_MAX_FAILED_PASSWORD_WIPE.equals(tag)) { 1359 maximumFailedPasswordsForWipe = Integer.parseInt( 1360 parser.getAttributeValue(null, ATTR_VALUE)); 1361 } else if (TAG_SPECIFIES_GLOBAL_PROXY.equals(tag)) { 1362 specifiesGlobalProxy = Boolean.parseBoolean( 1363 parser.getAttributeValue(null, ATTR_VALUE)); 1364 } else if (TAG_GLOBAL_PROXY_SPEC.equals(tag)) { 1365 globalProxySpec = 1366 parser.getAttributeValue(null, ATTR_VALUE); 1367 } else if (TAG_GLOBAL_PROXY_EXCLUSION_LIST.equals(tag)) { 1368 globalProxyExclusionList = 1369 parser.getAttributeValue(null, ATTR_VALUE); 1370 } else if (TAG_PASSWORD_EXPIRATION_TIMEOUT.equals(tag)) { 1371 passwordExpirationTimeout = Long.parseLong( 1372 parser.getAttributeValue(null, ATTR_VALUE)); 1373 } else if (TAG_PASSWORD_EXPIRATION_DATE.equals(tag)) { 1374 passwordExpirationDate = Long.parseLong( 1375 parser.getAttributeValue(null, ATTR_VALUE)); 1376 } else if (TAG_ENCRYPTION_REQUESTED.equals(tag)) { 1377 encryptionRequested = Boolean.parseBoolean( 1378 parser.getAttributeValue(null, ATTR_VALUE)); 1379 } else if (TAG_TEST_ONLY_ADMIN.equals(tag)) { 1380 testOnlyAdmin = Boolean.parseBoolean( 1381 parser.getAttributeValue(null, ATTR_VALUE)); 1382 } else if (TAG_DISABLE_CAMERA.equals(tag)) { 1383 disableCamera = Boolean.parseBoolean( 1384 parser.getAttributeValue(null, ATTR_VALUE)); 1385 } else if (TAG_DISABLE_CALLER_ID.equals(tag)) { 1386 disableCallerId = Boolean.parseBoolean( 1387 parser.getAttributeValue(null, ATTR_VALUE)); 1388 } else if (TAG_DISABLE_CONTACTS_SEARCH.equals(tag)) { 1389 disableContactsSearch = Boolean.parseBoolean( 1390 parser.getAttributeValue(null, ATTR_VALUE)); 1391 } else if (TAG_DISABLE_BLUETOOTH_CONTACT_SHARING.equals(tag)) { 1392 disableBluetoothContactSharing = Boolean.parseBoolean(parser 1393 .getAttributeValue(null, ATTR_VALUE)); 1394 } else if (TAG_DISABLE_SCREEN_CAPTURE.equals(tag)) { 1395 disableScreenCapture = Boolean.parseBoolean( 1396 parser.getAttributeValue(null, ATTR_VALUE)); 1397 } else if (TAG_REQUIRE_AUTO_TIME.equals(tag)) { 1398 requireAutoTime = Boolean.parseBoolean( 1399 parser.getAttributeValue(null, ATTR_VALUE)); 1400 } else if (TAG_FORCE_EPHEMERAL_USERS.equals(tag)) { 1401 forceEphemeralUsers = Boolean.parseBoolean( 1402 parser.getAttributeValue(null, ATTR_VALUE)); 1403 } else if (TAG_IS_NETWORK_LOGGING_ENABLED.equals(tag)) { 1404 isNetworkLoggingEnabled = Boolean.parseBoolean( 1405 parser.getAttributeValue(null, ATTR_VALUE)); 1406 lastNetworkLoggingNotificationTimeMs = Long.parseLong( 1407 parser.getAttributeValue(null, ATTR_LAST_NETWORK_LOGGING_NOTIFICATION)); 1408 numNetworkLoggingNotifications = Integer.parseInt( 1409 parser.getAttributeValue(null, ATTR_NUM_NETWORK_LOGGING_NOTIFICATIONS)); 1410 } else if (TAG_DISABLE_KEYGUARD_FEATURES.equals(tag)) { 1411 disabledKeyguardFeatures = Integer.parseInt( 1412 parser.getAttributeValue(null, ATTR_VALUE)); 1413 } else if (TAG_DISABLE_ACCOUNT_MANAGEMENT.equals(tag)) { 1414 readAttributeValues( 1415 parser, TAG_ACCOUNT_TYPE, accountTypesWithManagementDisabled); 1416 } else if (TAG_MANAGE_TRUST_AGENT_FEATURES.equals(tag)) { 1417 trustAgentInfos = getAllTrustAgentInfos(parser, tag); 1418 } else if (TAG_CROSS_PROFILE_WIDGET_PROVIDERS.equals(tag)) { 1419 crossProfileWidgetProviders = new ArrayList<>(); 1420 readAttributeValues(parser, TAG_PROVIDER, crossProfileWidgetProviders); 1421 } else if (TAG_PERMITTED_ACCESSIBILITY_SERVICES.equals(tag)) { 1422 permittedAccessiblityServices = readPackageList(parser, tag); 1423 } else if (TAG_PERMITTED_IMES.equals(tag)) { 1424 permittedInputMethods = readPackageList(parser, tag); 1425 } else if (TAG_PERMITTED_NOTIFICATION_LISTENERS.equals(tag)) { 1426 permittedNotificationListeners = readPackageList(parser, tag); 1427 } else if (TAG_KEEP_UNINSTALLED_PACKAGES.equals(tag)) { 1428 keepUninstalledPackages = readPackageList(parser, tag); 1429 } else if (TAG_METERED_DATA_DISABLED_PACKAGES.equals(tag)) { 1430 meteredDisabledPackages = readPackageList(parser, tag); 1431 } else if (TAG_USER_RESTRICTIONS.equals(tag)) { 1432 userRestrictions = UserRestrictionsUtils.readRestrictions(parser); 1433 } else if (TAG_DEFAULT_ENABLED_USER_RESTRICTIONS.equals(tag)) { 1434 readAttributeValues( 1435 parser, TAG_RESTRICTION, defaultEnabledRestrictionsAlreadySet); 1436 } else if (TAG_SHORT_SUPPORT_MESSAGE.equals(tag)) { 1437 type = parser.next(); 1438 if (type == XmlPullParser.TEXT) { 1439 shortSupportMessage = parser.getText(); 1440 } else { 1441 Log.w(LOG_TAG, "Missing text when loading short support message"); 1442 } 1443 } else if (TAG_LONG_SUPPORT_MESSAGE.equals(tag)) { 1444 type = parser.next(); 1445 if (type == XmlPullParser.TEXT) { 1446 longSupportMessage = parser.getText(); 1447 } else { 1448 Log.w(LOG_TAG, "Missing text when loading long support message"); 1449 } 1450 } else if (TAG_PARENT_ADMIN.equals(tag)) { 1451 Preconditions.checkState(!isParent); 1452 1453 parentAdmin = new ActiveAdmin(info, /* parent */ true); 1454 parentAdmin.readFromXml(parser); 1455 } else if (TAG_ORGANIZATION_COLOR.equals(tag)) { 1456 organizationColor = Integer.parseInt( 1457 parser.getAttributeValue(null, ATTR_VALUE)); 1458 } else if (TAG_ORGANIZATION_NAME.equals(tag)) { 1459 type = parser.next(); 1460 if (type == XmlPullParser.TEXT) { 1461 organizationName = parser.getText(); 1462 } else { 1463 Log.w(LOG_TAG, "Missing text when loading organization name"); 1464 } 1465 } else if (TAG_IS_LOGOUT_ENABLED.equals(tag)) { 1466 isLogoutEnabled = Boolean.parseBoolean( 1467 parser.getAttributeValue(null, ATTR_VALUE)); 1468 } else if (TAG_MANDATORY_BACKUP_TRANSPORT.equals(tag)) { 1469 mandatoryBackupTransport = ComponentName.unflattenFromString( 1470 parser.getAttributeValue(null, ATTR_VALUE)); 1471 } else if (TAG_START_USER_SESSION_MESSAGE.equals(tag)) { 1472 type = parser.next(); 1473 if (type == XmlPullParser.TEXT) { 1474 startUserSessionMessage = parser.getText(); 1475 } else { 1476 Log.w(LOG_TAG, "Missing text when loading start session message"); 1477 } 1478 } else if (TAG_END_USER_SESSION_MESSAGE.equals(tag)) { 1479 type = parser.next(); 1480 if (type == XmlPullParser.TEXT) { 1481 endUserSessionMessage = parser.getText(); 1482 } else { 1483 Log.w(LOG_TAG, "Missing text when loading end session message"); 1484 } 1485 } else { 1486 Slog.w(LOG_TAG, "Unknown admin tag: " + tag); 1487 XmlUtils.skipCurrentTag(parser); 1488 } 1489 } 1490 } 1491 1492 private List<String> readPackageList(XmlPullParser parser, 1493 String tag) throws XmlPullParserException, IOException { 1494 List<String> result = new ArrayList<String>(); 1495 int outerDepth = parser.getDepth(); 1496 int outerType; 1497 while ((outerType=parser.next()) != XmlPullParser.END_DOCUMENT 1498 && (outerType != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 1499 if (outerType == XmlPullParser.END_TAG || outerType == XmlPullParser.TEXT) { 1500 continue; 1501 } 1502 String outerTag = parser.getName(); 1503 if (TAG_PACKAGE_LIST_ITEM.equals(outerTag)) { 1504 String packageName = parser.getAttributeValue(null, ATTR_VALUE); 1505 if (packageName != null) { 1506 result.add(packageName); 1507 } else { 1508 Slog.w(LOG_TAG, "Package name missing under " + outerTag); 1509 } 1510 } else { 1511 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + outerTag); 1512 } 1513 } 1514 return result; 1515 } 1516 1517 private void readAttributeValues( 1518 XmlPullParser parser, String tag, Collection<String> result) 1519 throws XmlPullParserException, IOException { 1520 result.clear(); 1521 int outerDepthDAM = parser.getDepth(); 1522 int typeDAM; 1523 while ((typeDAM=parser.next()) != END_DOCUMENT 1524 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1525 if (typeDAM == END_TAG || typeDAM == TEXT) { 1526 continue; 1527 } 1528 String tagDAM = parser.getName(); 1529 if (tag.equals(tagDAM)) { 1530 result.add(parser.getAttributeValue(null, ATTR_VALUE)); 1531 } else { 1532 Slog.e(LOG_TAG, "Expected tag " + tag + " but found " + tagDAM); 1533 } 1534 } 1535 } 1536 1537 private ArrayMap<String, TrustAgentInfo> getAllTrustAgentInfos( 1538 XmlPullParser parser, String tag) throws XmlPullParserException, IOException { 1539 int outerDepthDAM = parser.getDepth(); 1540 int typeDAM; 1541 final ArrayMap<String, TrustAgentInfo> result = new ArrayMap<>(); 1542 while ((typeDAM=parser.next()) != END_DOCUMENT 1543 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1544 if (typeDAM == END_TAG || typeDAM == TEXT) { 1545 continue; 1546 } 1547 String tagDAM = parser.getName(); 1548 if (TAG_TRUST_AGENT_COMPONENT.equals(tagDAM)) { 1549 final String component = parser.getAttributeValue(null, ATTR_VALUE); 1550 final TrustAgentInfo trustAgentInfo = getTrustAgentInfo(parser, tag); 1551 result.put(component, trustAgentInfo); 1552 } else { 1553 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1554 } 1555 } 1556 return result; 1557 } 1558 1559 private TrustAgentInfo getTrustAgentInfo(XmlPullParser parser, String tag) 1560 throws XmlPullParserException, IOException { 1561 int outerDepthDAM = parser.getDepth(); 1562 int typeDAM; 1563 TrustAgentInfo result = new TrustAgentInfo(null); 1564 while ((typeDAM=parser.next()) != END_DOCUMENT 1565 && (typeDAM != END_TAG || parser.getDepth() > outerDepthDAM)) { 1566 if (typeDAM == END_TAG || typeDAM == TEXT) { 1567 continue; 1568 } 1569 String tagDAM = parser.getName(); 1570 if (TAG_TRUST_AGENT_COMPONENT_OPTIONS.equals(tagDAM)) { 1571 result.options = PersistableBundle.restoreFromXml(parser); 1572 } else { 1573 Slog.w(LOG_TAG, "Unknown tag under " + tag + ": " + tagDAM); 1574 } 1575 } 1576 return result; 1577 } 1578 1579 boolean hasUserRestrictions() { 1580 return userRestrictions != null && userRestrictions.size() > 0; 1581 } 1582 1583 Bundle ensureUserRestrictions() { 1584 if (userRestrictions == null) { 1585 userRestrictions = new Bundle(); 1586 } 1587 return userRestrictions; 1588 } 1589 1590 public void transfer(DeviceAdminInfo deviceAdminInfo) { 1591 if (hasParentActiveAdmin()) { 1592 parentAdmin.info = deviceAdminInfo; 1593 } 1594 info = deviceAdminInfo; 1595 } 1596 1597 void dump(String prefix, PrintWriter pw) { 1598 pw.print(prefix); pw.print("uid="); pw.println(getUid()); 1599 pw.print(prefix); pw.print("testOnlyAdmin="); 1600 pw.println(testOnlyAdmin); 1601 pw.print(prefix); pw.println("policies:"); 1602 ArrayList<DeviceAdminInfo.PolicyInfo> pols = info.getUsedPolicies(); 1603 if (pols != null) { 1604 for (int i=0; i<pols.size(); i++) { 1605 pw.print(prefix); pw.print(" "); pw.println(pols.get(i).tag); 1606 } 1607 } 1608 pw.print(prefix); pw.print("passwordQuality=0x"); 1609 pw.println(Integer.toHexString(minimumPasswordMetrics.quality)); 1610 pw.print(prefix); pw.print("minimumPasswordLength="); 1611 pw.println(minimumPasswordMetrics.length); 1612 pw.print(prefix); pw.print("passwordHistoryLength="); 1613 pw.println(passwordHistoryLength); 1614 pw.print(prefix); pw.print("minimumPasswordUpperCase="); 1615 pw.println(minimumPasswordMetrics.upperCase); 1616 pw.print(prefix); pw.print("minimumPasswordLowerCase="); 1617 pw.println(minimumPasswordMetrics.lowerCase); 1618 pw.print(prefix); pw.print("minimumPasswordLetters="); 1619 pw.println(minimumPasswordMetrics.letters); 1620 pw.print(prefix); pw.print("minimumPasswordNumeric="); 1621 pw.println(minimumPasswordMetrics.numeric); 1622 pw.print(prefix); pw.print("minimumPasswordSymbols="); 1623 pw.println(minimumPasswordMetrics.symbols); 1624 pw.print(prefix); pw.print("minimumPasswordNonLetter="); 1625 pw.println(minimumPasswordMetrics.nonLetter); 1626 pw.print(prefix); pw.print("maximumTimeToUnlock="); 1627 pw.println(maximumTimeToUnlock); 1628 pw.print(prefix); pw.print("strongAuthUnlockTimeout="); 1629 pw.println(strongAuthUnlockTimeout); 1630 pw.print(prefix); pw.print("maximumFailedPasswordsForWipe="); 1631 pw.println(maximumFailedPasswordsForWipe); 1632 pw.print(prefix); pw.print("specifiesGlobalProxy="); 1633 pw.println(specifiesGlobalProxy); 1634 pw.print(prefix); pw.print("passwordExpirationTimeout="); 1635 pw.println(passwordExpirationTimeout); 1636 pw.print(prefix); pw.print("passwordExpirationDate="); 1637 pw.println(passwordExpirationDate); 1638 if (globalProxySpec != null) { 1639 pw.print(prefix); pw.print("globalProxySpec="); 1640 pw.println(globalProxySpec); 1641 } 1642 if (globalProxyExclusionList != null) { 1643 pw.print(prefix); pw.print("globalProxyEclusionList="); 1644 pw.println(globalProxyExclusionList); 1645 } 1646 pw.print(prefix); pw.print("encryptionRequested="); 1647 pw.println(encryptionRequested); 1648 pw.print(prefix); pw.print("disableCamera="); 1649 pw.println(disableCamera); 1650 pw.print(prefix); pw.print("disableCallerId="); 1651 pw.println(disableCallerId); 1652 pw.print(prefix); pw.print("disableContactsSearch="); 1653 pw.println(disableContactsSearch); 1654 pw.print(prefix); pw.print("disableBluetoothContactSharing="); 1655 pw.println(disableBluetoothContactSharing); 1656 pw.print(prefix); pw.print("disableScreenCapture="); 1657 pw.println(disableScreenCapture); 1658 pw.print(prefix); pw.print("requireAutoTime="); 1659 pw.println(requireAutoTime); 1660 pw.print(prefix); pw.print("forceEphemeralUsers="); 1661 pw.println(forceEphemeralUsers); 1662 pw.print(prefix); pw.print("isNetworkLoggingEnabled="); 1663 pw.println(isNetworkLoggingEnabled); 1664 pw.print(prefix); pw.print("disabledKeyguardFeatures="); 1665 pw.println(disabledKeyguardFeatures); 1666 pw.print(prefix); pw.print("crossProfileWidgetProviders="); 1667 pw.println(crossProfileWidgetProviders); 1668 if (permittedAccessiblityServices != null) { 1669 pw.print(prefix); pw.print("permittedAccessibilityServices="); 1670 pw.println(permittedAccessiblityServices); 1671 } 1672 if (permittedInputMethods != null) { 1673 pw.print(prefix); pw.print("permittedInputMethods="); 1674 pw.println(permittedInputMethods); 1675 } 1676 if (permittedNotificationListeners != null) { 1677 pw.print(prefix); pw.print("permittedNotificationListeners="); 1678 pw.println(permittedNotificationListeners); 1679 } 1680 if (keepUninstalledPackages != null) { 1681 pw.print(prefix); pw.print("keepUninstalledPackages="); 1682 pw.println(keepUninstalledPackages); 1683 } 1684 pw.print(prefix); pw.print("organizationColor="); 1685 pw.println(organizationColor); 1686 if (organizationName != null) { 1687 pw.print(prefix); pw.print("organizationName="); 1688 pw.println(organizationName); 1689 } 1690 pw.print(prefix); pw.println("userRestrictions:"); 1691 UserRestrictionsUtils.dumpRestrictions(pw, prefix + " ", userRestrictions); 1692 pw.print(prefix); pw.print("defaultEnabledRestrictionsAlreadySet="); 1693 pw.println(defaultEnabledRestrictionsAlreadySet); 1694 pw.print(prefix); pw.print("isParent="); 1695 pw.println(isParent); 1696 if (parentAdmin != null) { 1697 pw.print(prefix); pw.println("parentAdmin:"); 1698 parentAdmin.dump(prefix + " ", pw); 1699 } 1700 } 1701 } 1702 1703 private void handlePackagesChanged(@Nullable String packageName, int userHandle) { 1704 boolean removedAdmin = false; 1705 if (VERBOSE_LOG) { 1706 Slog.d(LOG_TAG, "Handling package changes package " + packageName 1707 + " for user " + userHandle); 1708 } 1709 DevicePolicyData policy = getUserData(userHandle); 1710 synchronized (getLockObject()) { 1711 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 1712 ActiveAdmin aa = policy.mAdminList.get(i); 1713 try { 1714 // If we're checking all packages or if the specific one we're checking matches, 1715 // then check if the package and receiver still exist. 1716 final String adminPackage = aa.info.getPackageName(); 1717 if (packageName == null || packageName.equals(adminPackage)) { 1718 if (mIPackageManager.getPackageInfo(adminPackage, 0, userHandle) == null 1719 || mIPackageManager.getReceiverInfo(aa.info.getComponent(), 1720 PackageManager.MATCH_DIRECT_BOOT_AWARE 1721 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 1722 userHandle) == null) { 1723 removedAdmin = true; 1724 policy.mAdminList.remove(i); 1725 policy.mAdminMap.remove(aa.info.getComponent()); 1726 pushActiveAdminPackagesLocked(userHandle); 1727 pushMeteredDisabledPackagesLocked(userHandle); 1728 } 1729 } 1730 } catch (RemoteException re) { 1731 // Shouldn't happen. 1732 } 1733 } 1734 if (removedAdmin) { 1735 validatePasswordOwnerLocked(policy); 1736 } 1737 1738 boolean removedDelegate = false; 1739 1740 // Check if a delegate was removed. 1741 for (int i = policy.mDelegationMap.size() - 1; i >= 0; i--) { 1742 final String delegatePackage = policy.mDelegationMap.keyAt(i); 1743 if (isRemovedPackage(packageName, delegatePackage, userHandle)) { 1744 policy.mDelegationMap.removeAt(i); 1745 removedDelegate = true; 1746 } 1747 } 1748 1749 // If it's an owner package, we may need to refresh the bound connection. 1750 final ComponentName owner = getOwnerComponent(userHandle); 1751 if ((packageName != null) && (owner != null) 1752 && (owner.getPackageName().equals(packageName))) { 1753 startOwnerService(userHandle, "package-broadcast"); 1754 } 1755 1756 // Persist updates if the removed package was an admin or delegate. 1757 if (removedAdmin || removedDelegate) { 1758 saveSettingsLocked(policy.mUserHandle); 1759 } 1760 } 1761 if (removedAdmin) { 1762 // The removed admin might have disabled camera, so update user restrictions. 1763 pushUserRestrictions(userHandle); 1764 } 1765 } 1766 1767 private boolean isRemovedPackage(String changedPackage, String targetPackage, int userHandle) { 1768 try { 1769 return targetPackage != null 1770 && (changedPackage == null || changedPackage.equals(targetPackage)) 1771 && mIPackageManager.getPackageInfo(targetPackage, 0, userHandle) == null; 1772 } catch (RemoteException e) { 1773 // Shouldn't happen 1774 } 1775 1776 return false; 1777 } 1778 1779 /** 1780 * Unit test will subclass it to inject mocks. 1781 */ 1782 @VisibleForTesting 1783 static class Injector { 1784 1785 public final Context mContext; 1786 1787 Injector(Context context) { 1788 mContext = context; 1789 } 1790 1791 public boolean hasFeature() { 1792 return getPackageManager().hasSystemFeature(PackageManager.FEATURE_DEVICE_ADMIN); 1793 } 1794 1795 Context createContextAsUser(UserHandle user) throws PackageManager.NameNotFoundException { 1796 final String packageName = mContext.getPackageName(); 1797 return mContext.createPackageContextAsUser(packageName, 0, user); 1798 } 1799 1800 Resources getResources() { 1801 return mContext.getResources(); 1802 } 1803 1804 Owners newOwners() { 1805 return new Owners(getUserManager(), getUserManagerInternal(), 1806 getPackageManagerInternal()); 1807 } 1808 1809 UserManager getUserManager() { 1810 return UserManager.get(mContext); 1811 } 1812 1813 UserManagerInternal getUserManagerInternal() { 1814 return LocalServices.getService(UserManagerInternal.class); 1815 } 1816 1817 PackageManagerInternal getPackageManagerInternal() { 1818 return LocalServices.getService(PackageManagerInternal.class); 1819 } 1820 1821 UsageStatsManagerInternal getUsageStatsManagerInternal() { 1822 return LocalServices.getService(UsageStatsManagerInternal.class); 1823 } 1824 1825 NetworkPolicyManagerInternal getNetworkPolicyManagerInternal() { 1826 return LocalServices.getService(NetworkPolicyManagerInternal.class); 1827 } 1828 1829 NotificationManager getNotificationManager() { 1830 return mContext.getSystemService(NotificationManager.class); 1831 } 1832 1833 IIpConnectivityMetrics getIIpConnectivityMetrics() { 1834 return (IIpConnectivityMetrics) IIpConnectivityMetrics.Stub.asInterface( 1835 ServiceManager.getService(IpConnectivityLog.SERVICE_NAME)); 1836 } 1837 1838 PackageManager getPackageManager() { 1839 return mContext.getPackageManager(); 1840 } 1841 1842 PowerManagerInternal getPowerManagerInternal() { 1843 return LocalServices.getService(PowerManagerInternal.class); 1844 } 1845 1846 TelephonyManager getTelephonyManager() { 1847 return TelephonyManager.from(mContext); 1848 } 1849 1850 TrustManager getTrustManager() { 1851 return (TrustManager) mContext.getSystemService(Context.TRUST_SERVICE); 1852 } 1853 1854 AlarmManager getAlarmManager() { 1855 return (AlarmManager) mContext.getSystemService(AlarmManager.class); 1856 } 1857 1858 IWindowManager getIWindowManager() { 1859 return IWindowManager.Stub 1860 .asInterface(ServiceManager.getService(Context.WINDOW_SERVICE)); 1861 } 1862 1863 IActivityManager getIActivityManager() { 1864 return ActivityManager.getService(); 1865 } 1866 1867 ActivityManagerInternal getActivityManagerInternal() { 1868 return LocalServices.getService(ActivityManagerInternal.class); 1869 } 1870 1871 IPackageManager getIPackageManager() { 1872 return AppGlobals.getPackageManager(); 1873 } 1874 1875 IBackupManager getIBackupManager() { 1876 return IBackupManager.Stub.asInterface( 1877 ServiceManager.getService(Context.BACKUP_SERVICE)); 1878 } 1879 1880 IAudioService getIAudioService() { 1881 return IAudioService.Stub.asInterface(ServiceManager.getService(Context.AUDIO_SERVICE)); 1882 } 1883 1884 boolean isBuildDebuggable() { 1885 return Build.IS_DEBUGGABLE; 1886 } 1887 1888 LockPatternUtils newLockPatternUtils() { 1889 return new LockPatternUtils(mContext); 1890 } 1891 1892 boolean storageManagerIsFileBasedEncryptionEnabled() { 1893 return StorageManager.isFileEncryptedNativeOnly(); 1894 } 1895 1896 boolean storageManagerIsNonDefaultBlockEncrypted() { 1897 long identity = Binder.clearCallingIdentity(); 1898 try { 1899 return StorageManager.isNonDefaultBlockEncrypted(); 1900 } finally { 1901 Binder.restoreCallingIdentity(identity); 1902 } 1903 } 1904 1905 boolean storageManagerIsEncrypted() { 1906 return StorageManager.isEncrypted(); 1907 } 1908 1909 boolean storageManagerIsEncryptable() { 1910 return StorageManager.isEncryptable(); 1911 } 1912 1913 Looper getMyLooper() { 1914 return Looper.myLooper(); 1915 } 1916 1917 WifiManager getWifiManager() { 1918 return mContext.getSystemService(WifiManager.class); 1919 } 1920 1921 long binderClearCallingIdentity() { 1922 return Binder.clearCallingIdentity(); 1923 } 1924 1925 void binderRestoreCallingIdentity(long token) { 1926 Binder.restoreCallingIdentity(token); 1927 } 1928 1929 int binderGetCallingUid() { 1930 return Binder.getCallingUid(); 1931 } 1932 1933 int binderGetCallingPid() { 1934 return Binder.getCallingPid(); 1935 } 1936 1937 UserHandle binderGetCallingUserHandle() { 1938 return Binder.getCallingUserHandle(); 1939 } 1940 1941 boolean binderIsCallingUidMyUid() { 1942 return getCallingUid() == Process.myUid(); 1943 } 1944 1945 void binderWithCleanCallingIdentity(@NonNull ThrowingRunnable action) { 1946 Binder.withCleanCallingIdentity(action); 1947 } 1948 1949 final int userHandleGetCallingUserId() { 1950 return UserHandle.getUserId(binderGetCallingUid()); 1951 } 1952 1953 File environmentGetUserSystemDirectory(int userId) { 1954 return Environment.getUserSystemDirectory(userId); 1955 } 1956 1957 void powerManagerGoToSleep(long time, int reason, int flags) { 1958 mContext.getSystemService(PowerManager.class).goToSleep(time, reason, flags); 1959 } 1960 1961 void powerManagerReboot(String reason) { 1962 mContext.getSystemService(PowerManager.class).reboot(reason); 1963 } 1964 1965 void recoverySystemRebootWipeUserData(boolean shutdown, String reason, boolean force, 1966 boolean wipeEuicc) throws IOException { 1967 RecoverySystem.rebootWipeUserData(mContext, shutdown, reason, force, wipeEuicc); 1968 } 1969 1970 boolean systemPropertiesGetBoolean(String key, boolean def) { 1971 return SystemProperties.getBoolean(key, def); 1972 } 1973 1974 long systemPropertiesGetLong(String key, long def) { 1975 return SystemProperties.getLong(key, def); 1976 } 1977 1978 String systemPropertiesGet(String key, String def) { 1979 return SystemProperties.get(key, def); 1980 } 1981 1982 String systemPropertiesGet(String key) { 1983 return SystemProperties.get(key); 1984 } 1985 1986 void systemPropertiesSet(String key, String value) { 1987 SystemProperties.set(key, value); 1988 } 1989 1990 boolean userManagerIsSplitSystemUser() { 1991 return UserManager.isSplitSystemUser(); 1992 } 1993 1994 String getDevicePolicyFilePathForSystemUser() { 1995 return "/data/system/"; 1996 } 1997 1998 PendingIntent pendingIntentGetActivityAsUser(Context context, int requestCode, 1999 @NonNull Intent intent, int flags, Bundle options, UserHandle user) { 2000 return PendingIntent.getActivityAsUser( 2001 context, requestCode, intent, flags, options, user); 2002 } 2003 2004 void registerContentObserver(Uri uri, boolean notifyForDescendents, 2005 ContentObserver observer, int userHandle) { 2006 mContext.getContentResolver().registerContentObserver(uri, notifyForDescendents, 2007 observer, userHandle); 2008 } 2009 2010 int settingsSecureGetIntForUser(String name, int def, int userHandle) { 2011 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 2012 name, def, userHandle); 2013 } 2014 2015 String settingsSecureGetStringForUser(String name, int userHandle) { 2016 return Settings.Secure.getStringForUser(mContext.getContentResolver(), name, 2017 userHandle); 2018 } 2019 2020 void settingsSecurePutIntForUser(String name, int value, int userHandle) { 2021 Settings.Secure.putIntForUser(mContext.getContentResolver(), 2022 name, value, userHandle); 2023 } 2024 2025 void settingsSecurePutStringForUser(String name, String value, int userHandle) { 2026 Settings.Secure.putStringForUser(mContext.getContentResolver(), 2027 name, value, userHandle); 2028 } 2029 2030 void settingsGlobalPutStringForUser(String name, String value, int userHandle) { 2031 Settings.Global.putStringForUser(mContext.getContentResolver(), 2032 name, value, userHandle); 2033 } 2034 2035 void settingsSecurePutInt(String name, int value) { 2036 Settings.Secure.putInt(mContext.getContentResolver(), name, value); 2037 } 2038 2039 int settingsGlobalGetInt(String name, int def) { 2040 return Settings.Global.getInt(mContext.getContentResolver(), name, def); 2041 } 2042 2043 String settingsGlobalGetString(String name) { 2044 return Settings.Global.getString(mContext.getContentResolver(), name); 2045 } 2046 2047 void settingsGlobalPutInt(String name, int value) { 2048 Settings.Global.putInt(mContext.getContentResolver(), name, value); 2049 } 2050 2051 void settingsSecurePutString(String name, String value) { 2052 Settings.Secure.putString(mContext.getContentResolver(), name, value); 2053 } 2054 2055 void settingsGlobalPutString(String name, String value) { 2056 Settings.Global.putString(mContext.getContentResolver(), name, value); 2057 } 2058 2059 void settingsSystemPutStringForUser(String name, String value, int userId) { 2060 Settings.System.putStringForUser( 2061 mContext.getContentResolver(), name, value, userId); 2062 } 2063 2064 void securityLogSetLoggingEnabledProperty(boolean enabled) { 2065 SecurityLog.setLoggingEnabledProperty(enabled); 2066 } 2067 2068 boolean securityLogGetLoggingEnabledProperty() { 2069 return SecurityLog.getLoggingEnabledProperty(); 2070 } 2071 2072 boolean securityLogIsLoggingEnabled() { 2073 return SecurityLog.isLoggingEnabled(); 2074 } 2075 2076 KeyChainConnection keyChainBindAsUser(UserHandle user) throws InterruptedException { 2077 return KeyChain.bindAsUser(mContext, user); 2078 } 2079 2080 void postOnSystemServerInitThreadPool(Runnable runnable) { 2081 SystemServerInitThreadPool.get().submit(runnable, LOG_TAG); 2082 } 2083 2084 public TransferOwnershipMetadataManager newTransferOwnershipMetadataManager() { 2085 return new TransferOwnershipMetadataManager(); 2086 } 2087 2088 public void runCryptoSelfTest() { 2089 CryptoTestHelper.runAndLogSelfTest(); 2090 } 2091 } 2092 2093 /** 2094 * Instantiates the service. 2095 */ 2096 public DevicePolicyManagerService(Context context) { 2097 this(new Injector(context)); 2098 } 2099 2100 @VisibleForTesting 2101 DevicePolicyManagerService(Injector injector) { 2102 mInjector = injector; 2103 mContext = Preconditions.checkNotNull(injector.mContext); 2104 mHandler = new Handler(Preconditions.checkNotNull(injector.getMyLooper())); 2105 mConstants = DevicePolicyConstants.loadFromString( 2106 mInjector.settingsGlobalGetString(Global.DEVICE_POLICY_CONSTANTS)); 2107 2108 mOwners = Preconditions.checkNotNull(injector.newOwners()); 2109 2110 mUserManager = Preconditions.checkNotNull(injector.getUserManager()); 2111 mUserManagerInternal = Preconditions.checkNotNull(injector.getUserManagerInternal()); 2112 mUsageStatsManagerInternal = Preconditions.checkNotNull( 2113 injector.getUsageStatsManagerInternal()); 2114 mIPackageManager = Preconditions.checkNotNull(injector.getIPackageManager()); 2115 mTelephonyManager = Preconditions.checkNotNull(injector.getTelephonyManager()); 2116 2117 mLocalService = new LocalService(); 2118 mLockPatternUtils = injector.newLockPatternUtils(); 2119 2120 // TODO: why does SecurityLogMonitor need to be created even when mHasFeature == false? 2121 mSecurityLogMonitor = new SecurityLogMonitor(this); 2122 2123 mHasFeature = mInjector.hasFeature(); 2124 mIsWatch = mInjector.getPackageManager() 2125 .hasSystemFeature(PackageManager.FEATURE_WATCH); 2126 mBackgroundHandler = BackgroundThread.getHandler(); 2127 2128 // Needed when mHasFeature == false, because it controls the certificate warning text. 2129 mCertificateMonitor = new CertificateMonitor(this, mInjector, mBackgroundHandler); 2130 2131 mDeviceAdminServiceController = new DeviceAdminServiceController(this, mConstants); 2132 2133 mOverlayPackagesProvider = new OverlayPackagesProvider(mContext); 2134 2135 mTransferOwnershipMetadataManager = mInjector.newTransferOwnershipMetadataManager(); 2136 2137 if (!mHasFeature) { 2138 // Skip the rest of the initialization 2139 mSetupContentObserver = null; 2140 return; 2141 } 2142 2143 IntentFilter filter = new IntentFilter(); 2144 filter.addAction(Intent.ACTION_BOOT_COMPLETED); 2145 filter.addAction(ACTION_EXPIRED_PASSWORD_NOTIFICATION); 2146 filter.addAction(Intent.ACTION_USER_ADDED); 2147 filter.addAction(Intent.ACTION_USER_REMOVED); 2148 filter.addAction(Intent.ACTION_USER_STARTED); 2149 filter.addAction(Intent.ACTION_USER_STOPPED); 2150 filter.addAction(Intent.ACTION_USER_SWITCHED); 2151 filter.addAction(Intent.ACTION_USER_UNLOCKED); 2152 filter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 2153 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 2154 filter = new IntentFilter(); 2155 filter.addAction(Intent.ACTION_PACKAGE_CHANGED); 2156 filter.addAction(Intent.ACTION_PACKAGE_REMOVED); 2157 filter.addAction(Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE); 2158 filter.addAction(Intent.ACTION_PACKAGE_ADDED); 2159 filter.addDataScheme("package"); 2160 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 2161 filter = new IntentFilter(); 2162 filter.addAction(Intent.ACTION_MANAGED_PROFILE_ADDED); 2163 filter.addAction(Intent.ACTION_TIME_CHANGED); 2164 filter.addAction(Intent.ACTION_DATE_CHANGED); 2165 mContext.registerReceiverAsUser(mReceiver, UserHandle.ALL, filter, null, mHandler); 2166 2167 LocalServices.addService(DevicePolicyManagerInternal.class, mLocalService); 2168 2169 mSetupContentObserver = new SetupContentObserver(mHandler); 2170 2171 mUserManagerInternal.addUserRestrictionsListener(new RestrictionsListener(mContext)); 2172 } 2173 2174 /** 2175 * Creates and loads the policy data from xml. 2176 * @param userHandle the user for whom to load the policy data 2177 * @return 2178 */ 2179 @NonNull 2180 DevicePolicyData getUserData(int userHandle) { 2181 synchronized (getLockObject()) { 2182 DevicePolicyData policy = mUserData.get(userHandle); 2183 if (policy == null) { 2184 policy = new DevicePolicyData(userHandle); 2185 mUserData.append(userHandle, policy); 2186 loadSettingsLocked(policy, userHandle); 2187 } 2188 return policy; 2189 } 2190 } 2191 2192 /** 2193 * Provides PasswordMetrics object corresponding to the given user. 2194 * @param userHandle the user for whom to provide metrics. 2195 * @return the user password metrics, or {@code null} if none have been associated with 2196 * the user yet (for example, if the device has booted but not been unlocked). 2197 */ 2198 PasswordMetrics getUserPasswordMetricsLocked(int userHandle) { 2199 return mUserPasswordMetrics.get(userHandle); 2200 } 2201 2202 /** 2203 * Creates and loads the policy data from xml for data that is shared between 2204 * various profiles of a user. In contrast to {@link #getUserData(int)} 2205 * it allows access to data of users other than the calling user. 2206 * 2207 * This function should only be used for shared data, e.g. everything regarding 2208 * passwords and should be removed once multiple screen locks are present. 2209 * @param userHandle the user for whom to load the policy data 2210 * @return 2211 */ 2212 DevicePolicyData getUserDataUnchecked(int userHandle) { 2213 long ident = mInjector.binderClearCallingIdentity(); 2214 try { 2215 return getUserData(userHandle); 2216 } finally { 2217 mInjector.binderRestoreCallingIdentity(ident); 2218 } 2219 } 2220 2221 void removeUserData(int userHandle) { 2222 synchronized (getLockObject()) { 2223 if (userHandle == UserHandle.USER_SYSTEM) { 2224 Slog.w(LOG_TAG, "Tried to remove device policy file for user 0! Ignoring."); 2225 return; 2226 } 2227 mPolicyCache.onUserRemoved(userHandle); 2228 2229 mOwners.removeProfileOwner(userHandle); 2230 mOwners.writeProfileOwner(userHandle); 2231 2232 DevicePolicyData policy = mUserData.get(userHandle); 2233 if (policy != null) { 2234 mUserData.remove(userHandle); 2235 } 2236 if (mUserPasswordMetrics.get(userHandle) != null) { 2237 mUserPasswordMetrics.remove(userHandle); 2238 } 2239 2240 File policyFile = new File(mInjector.environmentGetUserSystemDirectory(userHandle), 2241 DEVICE_POLICIES_XML); 2242 policyFile.delete(); 2243 Slog.i(LOG_TAG, "Removed device policy file " + policyFile.getAbsolutePath()); 2244 } 2245 } 2246 2247 void loadOwners() { 2248 synchronized (getLockObject()) { 2249 mOwners.load(); 2250 setDeviceOwnerSystemPropertyLocked(); 2251 findOwnerComponentIfNecessaryLocked(); 2252 migrateUserRestrictionsIfNecessaryLocked(); 2253 maybeSetDefaultDeviceOwnerUserRestrictionsLocked(); 2254 2255 // TODO PO may not have a class name either due to b/17652534. Address that too. 2256 2257 updateDeviceOwnerLocked(); 2258 } 2259 } 2260 2261 /** Apply default restrictions that haven't been applied to device owners yet. */ 2262 private void maybeSetDefaultDeviceOwnerUserRestrictionsLocked() { 2263 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 2264 if (deviceOwner != null) { 2265 maybeSetDefaultRestrictionsForAdminLocked(mOwners.getDeviceOwnerUserId(), 2266 deviceOwner, UserRestrictionsUtils.getDefaultEnabledForDeviceOwner()); 2267 } 2268 } 2269 2270 /** Apply default restrictions that haven't been applied to profile owners yet. */ 2271 private void maybeSetDefaultProfileOwnerUserRestrictions() { 2272 synchronized (getLockObject()) { 2273 for (final int userId : mOwners.getProfileOwnerKeys()) { 2274 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 2275 // The following restrictions used to be applied to managed profiles by different 2276 // means (via Settings or by disabling components). Now they are proper user 2277 // restrictions so we apply them to managed profile owners. Non-managed secondary 2278 // users didn't have those restrictions so we skip them to keep existing behavior. 2279 if (profileOwner == null || !mUserManager.isManagedProfile(userId)) { 2280 continue; 2281 } 2282 maybeSetDefaultRestrictionsForAdminLocked(userId, profileOwner, 2283 UserRestrictionsUtils.getDefaultEnabledForManagedProfiles()); 2284 ensureUnknownSourcesRestrictionForProfileOwnerLocked( 2285 userId, profileOwner, false /* newOwner */); 2286 } 2287 } 2288 } 2289 2290 /** 2291 * Checks whether {@link UserManager#DISALLOW_INSTALL_UNKNOWN_SOURCES} should be added to the 2292 * set of restrictions for this profile owner. 2293 */ 2294 private void ensureUnknownSourcesRestrictionForProfileOwnerLocked(int userId, 2295 ActiveAdmin profileOwner, boolean newOwner) { 2296 if (newOwner || mInjector.settingsSecureGetIntForUser( 2297 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId) != 0) { 2298 profileOwner.ensureUserRestrictions().putBoolean( 2299 UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, true); 2300 saveUserRestrictionsLocked(userId); 2301 mInjector.settingsSecurePutIntForUser( 2302 Settings.Secure.UNKNOWN_SOURCES_DEFAULT_REVERSED, 0, userId); 2303 } 2304 } 2305 2306 /** 2307 * Apply default restrictions that haven't been applied to a given admin yet. 2308 */ 2309 private void maybeSetDefaultRestrictionsForAdminLocked( 2310 int userId, ActiveAdmin admin, Set<String> defaultRestrictions) { 2311 if (defaultRestrictions.equals(admin.defaultEnabledRestrictionsAlreadySet)) { 2312 return; // The same set of default restrictions has been already applied. 2313 } 2314 Slog.i(LOG_TAG, "New user restrictions need to be set by default for user " + userId); 2315 2316 if (VERBOSE_LOG) { 2317 Slog.d(LOG_TAG,"Default enabled restrictions: " 2318 + defaultRestrictions 2319 + ". Restrictions already enabled: " 2320 + admin.defaultEnabledRestrictionsAlreadySet); 2321 } 2322 2323 final Set<String> restrictionsToSet = new ArraySet<>(defaultRestrictions); 2324 restrictionsToSet.removeAll(admin.defaultEnabledRestrictionsAlreadySet); 2325 if (!restrictionsToSet.isEmpty()) { 2326 for (final String restriction : restrictionsToSet) { 2327 admin.ensureUserRestrictions().putBoolean(restriction, true); 2328 } 2329 admin.defaultEnabledRestrictionsAlreadySet.addAll(restrictionsToSet); 2330 Slog.i(LOG_TAG, "Enabled the following restrictions by default: " + restrictionsToSet); 2331 saveUserRestrictionsLocked(userId); 2332 } 2333 } 2334 2335 private void setDeviceOwnerSystemPropertyLocked() { 2336 final boolean deviceProvisioned = 2337 mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0; 2338 final boolean hasDeviceOwner = mOwners.hasDeviceOwner(); 2339 // If the device is not provisioned and there is currently no device owner, do not set the 2340 // read-only system property yet, since Device owner may still be provisioned. 2341 if (!hasDeviceOwner && !deviceProvisioned) { 2342 return; 2343 } 2344 // Still at the first stage of CryptKeeper double bounce, mOwners.hasDeviceOwner is 2345 // always false at this point. 2346 if (StorageManager.inCryptKeeperBounce()) { 2347 return; 2348 } 2349 2350 if (!mInjector.systemPropertiesGet(PROPERTY_DEVICE_OWNER_PRESENT, "").isEmpty()) { 2351 Slog.w(LOG_TAG, "Trying to set ro.device_owner, but it has already been set?"); 2352 } else { 2353 final String value = Boolean.toString(hasDeviceOwner); 2354 mInjector.systemPropertiesSet(PROPERTY_DEVICE_OWNER_PRESENT, value); 2355 Slog.i(LOG_TAG, "Set ro.device_owner property to " + value); 2356 } 2357 } 2358 2359 private void maybeStartSecurityLogMonitorOnActivityManagerReady() { 2360 synchronized (getLockObject()) { 2361 if (mInjector.securityLogIsLoggingEnabled()) { 2362 mSecurityLogMonitor.start(); 2363 mInjector.runCryptoSelfTest(); 2364 maybePauseDeviceWideLoggingLocked(); 2365 } 2366 } 2367 } 2368 2369 private void findOwnerComponentIfNecessaryLocked() { 2370 if (!mOwners.hasDeviceOwner()) { 2371 return; 2372 } 2373 final ComponentName doComponentName = mOwners.getDeviceOwnerComponent(); 2374 2375 if (!TextUtils.isEmpty(doComponentName.getClassName())) { 2376 return; // Already a full component name. 2377 } 2378 2379 final ComponentName doComponent = findAdminComponentWithPackageLocked( 2380 doComponentName.getPackageName(), 2381 mOwners.getDeviceOwnerUserId()); 2382 if (doComponent == null) { 2383 Slog.e(LOG_TAG, "Device-owner isn't registered as device-admin"); 2384 } else { 2385 mOwners.setDeviceOwnerWithRestrictionsMigrated( 2386 doComponent, 2387 mOwners.getDeviceOwnerName(), 2388 mOwners.getDeviceOwnerUserId(), 2389 !mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()); 2390 mOwners.writeDeviceOwner(); 2391 if (VERBOSE_LOG) { 2392 Log.v(LOG_TAG, "Device owner component filled in"); 2393 } 2394 } 2395 } 2396 2397 /** 2398 * We didn't use to persist user restrictions for each owners but only persisted in user 2399 * manager. 2400 */ 2401 private void migrateUserRestrictionsIfNecessaryLocked() { 2402 boolean migrated = false; 2403 // Migrate for the DO. Basically all restrictions should be considered to be set by DO, 2404 // except for the "system controlled" ones. 2405 if (mOwners.getDeviceOwnerUserRestrictionsNeedsMigration()) { 2406 if (VERBOSE_LOG) { 2407 Log.v(LOG_TAG, "Migrating DO user restrictions"); 2408 } 2409 migrated = true; 2410 2411 // Migrate user 0 restrictions to DO. 2412 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 2413 2414 migrateUserRestrictionsForUser(UserHandle.SYSTEM, deviceOwnerAdmin, 2415 /* exceptionList =*/ null, /* isDeviceOwner =*/ true); 2416 2417 // Push DO user restrictions to user manager. 2418 pushUserRestrictions(UserHandle.USER_SYSTEM); 2419 2420 mOwners.setDeviceOwnerUserRestrictionsMigrated(); 2421 } 2422 2423 // Migrate for POs. 2424 2425 // The following restrictions can be set on secondary users by the device owner, so we 2426 // assume they're not from the PO. 2427 final Set<String> secondaryUserExceptionList = Sets.newArraySet( 2428 UserManager.DISALLOW_OUTGOING_CALLS, 2429 UserManager.DISALLOW_SMS); 2430 2431 for (UserInfo ui : mUserManager.getUsers()) { 2432 final int userId = ui.id; 2433 if (mOwners.getProfileOwnerUserRestrictionsNeedsMigration(userId)) { 2434 if (VERBOSE_LOG) { 2435 Log.v(LOG_TAG, "Migrating PO user restrictions for user " + userId); 2436 } 2437 migrated = true; 2438 2439 final ActiveAdmin profileOwnerAdmin = getProfileOwnerAdminLocked(userId); 2440 2441 final Set<String> exceptionList = 2442 (userId == UserHandle.USER_SYSTEM) ? null : secondaryUserExceptionList; 2443 2444 migrateUserRestrictionsForUser(ui.getUserHandle(), profileOwnerAdmin, 2445 exceptionList, /* isDeviceOwner =*/ false); 2446 2447 // Note if a secondary user has no PO but has a DA that disables camera, we 2448 // don't get here and won't push the camera user restriction to UserManager 2449 // here. That's okay because we'll push user restrictions anyway when a user 2450 // starts. But we still do it because we want to let user manager persist 2451 // upon migration. 2452 pushUserRestrictions(userId); 2453 2454 mOwners.setProfileOwnerUserRestrictionsMigrated(userId); 2455 } 2456 } 2457 if (VERBOSE_LOG && migrated) { 2458 Log.v(LOG_TAG, "User restrictions migrated."); 2459 } 2460 } 2461 2462 private void migrateUserRestrictionsForUser(UserHandle user, ActiveAdmin admin, 2463 Set<String> exceptionList, boolean isDeviceOwner) { 2464 final Bundle origRestrictions = mUserManagerInternal.getBaseUserRestrictions( 2465 user.getIdentifier()); 2466 2467 final Bundle newBaseRestrictions = new Bundle(); 2468 final Bundle newOwnerRestrictions = new Bundle(); 2469 2470 for (String key : origRestrictions.keySet()) { 2471 if (!origRestrictions.getBoolean(key)) { 2472 continue; 2473 } 2474 final boolean canOwnerChange = isDeviceOwner 2475 ? UserRestrictionsUtils.canDeviceOwnerChange(key) 2476 : UserRestrictionsUtils.canProfileOwnerChange(key, user.getIdentifier()); 2477 2478 if (!canOwnerChange || (exceptionList!= null && exceptionList.contains(key))) { 2479 newBaseRestrictions.putBoolean(key, true); 2480 } else { 2481 newOwnerRestrictions.putBoolean(key, true); 2482 } 2483 } 2484 2485 if (VERBOSE_LOG) { 2486 Log.v(LOG_TAG, "origRestrictions=" + origRestrictions); 2487 Log.v(LOG_TAG, "newBaseRestrictions=" + newBaseRestrictions); 2488 Log.v(LOG_TAG, "newOwnerRestrictions=" + newOwnerRestrictions); 2489 } 2490 mUserManagerInternal.setBaseUserRestrictionsByDpmsForMigration(user.getIdentifier(), 2491 newBaseRestrictions); 2492 2493 if (admin != null) { 2494 admin.ensureUserRestrictions().clear(); 2495 admin.ensureUserRestrictions().putAll(newOwnerRestrictions); 2496 } else { 2497 Slog.w(LOG_TAG, "ActiveAdmin for DO/PO not found. user=" + user.getIdentifier()); 2498 } 2499 saveSettingsLocked(user.getIdentifier()); 2500 } 2501 2502 private ComponentName findAdminComponentWithPackageLocked(String packageName, int userId) { 2503 final DevicePolicyData policy = getUserData(userId); 2504 final int n = policy.mAdminList.size(); 2505 ComponentName found = null; 2506 int nFound = 0; 2507 for (int i = 0; i < n; i++) { 2508 final ActiveAdmin admin = policy.mAdminList.get(i); 2509 if (packageName.equals(admin.info.getPackageName())) { 2510 // Found! 2511 if (nFound == 0) { 2512 found = admin.info.getComponent(); 2513 } 2514 nFound++; 2515 } 2516 } 2517 if (nFound > 1) { 2518 Slog.w(LOG_TAG, "Multiple DA found; assume the first one is DO."); 2519 } 2520 return found; 2521 } 2522 2523 /** 2524 * Set an alarm for an upcoming event - expiration warning, expiration, or post-expiration 2525 * reminders. Clears alarm if no expirations are configured. 2526 */ 2527 private void setExpirationAlarmCheckLocked(Context context, int userHandle, boolean parent) { 2528 final long expiration = getPasswordExpirationLocked(null, userHandle, parent); 2529 final long now = System.currentTimeMillis(); 2530 final long timeToExpire = expiration - now; 2531 final long alarmTime; 2532 if (expiration == 0) { 2533 // No expirations are currently configured: Cancel alarm. 2534 alarmTime = 0; 2535 } else if (timeToExpire <= 0) { 2536 // The password has already expired: Repeat every 24 hours. 2537 alarmTime = now + MS_PER_DAY; 2538 } else { 2539 // Selecting the next alarm time: Roll forward to the next 24 hour multiple before 2540 // the expiration time. 2541 long alarmInterval = timeToExpire % MS_PER_DAY; 2542 if (alarmInterval == 0) { 2543 alarmInterval = MS_PER_DAY; 2544 } 2545 alarmTime = now + alarmInterval; 2546 } 2547 2548 long token = mInjector.binderClearCallingIdentity(); 2549 try { 2550 int affectedUserHandle = parent ? getProfileParentId(userHandle) : userHandle; 2551 AlarmManager am = mInjector.getAlarmManager(); 2552 PendingIntent pi = PendingIntent.getBroadcastAsUser(context, REQUEST_EXPIRE_PASSWORD, 2553 new Intent(ACTION_EXPIRED_PASSWORD_NOTIFICATION), 2554 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_UPDATE_CURRENT, 2555 UserHandle.of(affectedUserHandle)); 2556 am.cancel(pi); 2557 if (alarmTime != 0) { 2558 am.set(AlarmManager.RTC, alarmTime, pi); 2559 } 2560 } finally { 2561 mInjector.binderRestoreCallingIdentity(token); 2562 } 2563 } 2564 2565 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle) { 2566 ensureLocked(); 2567 ActiveAdmin admin = getUserData(userHandle).mAdminMap.get(who); 2568 if (admin != null 2569 && who.getPackageName().equals(admin.info.getActivityInfo().packageName) 2570 && who.getClassName().equals(admin.info.getActivityInfo().name)) { 2571 return admin; 2572 } 2573 return null; 2574 } 2575 2576 ActiveAdmin getActiveAdminUncheckedLocked(ComponentName who, int userHandle, boolean parent) { 2577 ensureLocked(); 2578 if (parent) { 2579 enforceManagedProfile(userHandle, "call APIs on the parent profile"); 2580 } 2581 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 2582 if (admin != null && parent) { 2583 admin = admin.getParentActiveAdmin(); 2584 } 2585 return admin; 2586 } 2587 2588 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy) 2589 throws SecurityException { 2590 ensureLocked(); 2591 final int callingUid = mInjector.binderGetCallingUid(); 2592 2593 ActiveAdmin result = getActiveAdminWithPolicyForUidLocked(who, reqPolicy, callingUid); 2594 if (result != null) { 2595 return result; 2596 } 2597 2598 if (who != null) { 2599 final int userId = UserHandle.getUserId(callingUid); 2600 final DevicePolicyData policy = getUserData(userId); 2601 ActiveAdmin admin = policy.mAdminMap.get(who); 2602 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2603 throw new SecurityException("Admin " + admin.info.getComponent() 2604 + " does not own the device"); 2605 } 2606 if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2607 throw new SecurityException("Admin " + admin.info.getComponent() 2608 + " does not own the profile"); 2609 } 2610 throw new SecurityException("Admin " + admin.info.getComponent() 2611 + " did not specify uses-policy for: " 2612 + admin.info.getTagForPolicy(reqPolicy)); 2613 } else { 2614 throw new SecurityException("No active admin owned by uid " 2615 + mInjector.binderGetCallingUid() + " for policy #" + reqPolicy); 2616 } 2617 } 2618 2619 ActiveAdmin getActiveAdminForCallerLocked(ComponentName who, int reqPolicy, boolean parent) 2620 throws SecurityException { 2621 ensureLocked(); 2622 if (parent) { 2623 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), 2624 "call APIs on the parent profile"); 2625 } 2626 ActiveAdmin admin = getActiveAdminForCallerLocked(who, reqPolicy); 2627 return parent ? admin.getParentActiveAdmin() : admin; 2628 } 2629 /** 2630 * Find the admin for the component and userId bit of the uid, then check 2631 * the admin's uid matches the uid. 2632 */ 2633 private ActiveAdmin getActiveAdminForUidLocked(ComponentName who, int uid) { 2634 ensureLocked(); 2635 final int userId = UserHandle.getUserId(uid); 2636 final DevicePolicyData policy = getUserData(userId); 2637 ActiveAdmin admin = policy.mAdminMap.get(who); 2638 if (admin == null) { 2639 throw new SecurityException("No active admin " + who); 2640 } 2641 if (admin.getUid() != uid) { 2642 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2643 } 2644 return admin; 2645 } 2646 2647 private ActiveAdmin getActiveAdminWithPolicyForUidLocked(ComponentName who, int reqPolicy, 2648 int uid) { 2649 ensureLocked(); 2650 // Try to find an admin which can use reqPolicy 2651 final int userId = UserHandle.getUserId(uid); 2652 final DevicePolicyData policy = getUserData(userId); 2653 if (who != null) { 2654 ActiveAdmin admin = policy.mAdminMap.get(who); 2655 if (admin == null) { 2656 throw new SecurityException("No active admin " + who); 2657 } 2658 if (admin.getUid() != uid) { 2659 throw new SecurityException("Admin " + who + " is not owned by uid " + uid); 2660 } 2661 if (isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, userId)) { 2662 return admin; 2663 } 2664 } else { 2665 for (ActiveAdmin admin : policy.mAdminList) { 2666 if (admin.getUid() == uid && isActiveAdminWithPolicyForUserLocked(admin, reqPolicy, 2667 userId)) { 2668 return admin; 2669 } 2670 } 2671 } 2672 2673 return null; 2674 } 2675 2676 @VisibleForTesting 2677 boolean isActiveAdminWithPolicyForUserLocked(ActiveAdmin admin, int reqPolicy, 2678 int userId) { 2679 ensureLocked(); 2680 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userId); 2681 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userId); 2682 2683 if (reqPolicy == DeviceAdminInfo.USES_POLICY_DEVICE_OWNER) { 2684 return ownsDevice; 2685 } else if (reqPolicy == DeviceAdminInfo.USES_POLICY_PROFILE_OWNER) { 2686 // DO always has the PO power. 2687 return ownsDevice || ownsProfile; 2688 } else { 2689 return admin.info.usesPolicy(reqPolicy); 2690 } 2691 } 2692 2693 void sendAdminCommandLocked(ActiveAdmin admin, String action) { 2694 sendAdminCommandLocked(admin, action, null); 2695 } 2696 2697 void sendAdminCommandLocked(ActiveAdmin admin, String action, BroadcastReceiver result) { 2698 sendAdminCommandLocked(admin, action, null, result); 2699 } 2700 2701 void sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2702 BroadcastReceiver result) { 2703 sendAdminCommandLocked(admin, action, adminExtras, result, false); 2704 } 2705 2706 /** 2707 * Send an update to one specific admin, get notified when that admin returns a result. 2708 * 2709 * @return whether the broadcast was successfully sent 2710 */ 2711 boolean sendAdminCommandLocked(ActiveAdmin admin, String action, Bundle adminExtras, 2712 BroadcastReceiver result, boolean inForeground) { 2713 Intent intent = new Intent(action); 2714 intent.setComponent(admin.info.getComponent()); 2715 if (UserManager.isDeviceInDemoMode(mContext)) { 2716 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 2717 } 2718 if (action.equals(DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING)) { 2719 intent.putExtra("expiration", admin.passwordExpirationDate); 2720 } 2721 if (inForeground) { 2722 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 2723 } 2724 if (adminExtras != null) { 2725 intent.putExtras(adminExtras); 2726 } 2727 if (mInjector.getPackageManager().queryBroadcastReceiversAsUser( 2728 intent, 2729 PackageManager.MATCH_DEBUG_TRIAGED_MISSING, 2730 admin.getUserHandle()).isEmpty()) { 2731 return false; 2732 } 2733 if (result != null) { 2734 mContext.sendOrderedBroadcastAsUser(intent, admin.getUserHandle(), 2735 null, result, mHandler, Activity.RESULT_OK, null, null); 2736 } else { 2737 mContext.sendBroadcastAsUser(intent, admin.getUserHandle()); 2738 } 2739 return true; 2740 } 2741 2742 /** 2743 * Send an update to all admins of a user that enforce a specified policy. 2744 */ 2745 void sendAdminCommandLocked(String action, int reqPolicy, int userHandle, Bundle adminExtras) { 2746 final DevicePolicyData policy = getUserData(userHandle); 2747 final int count = policy.mAdminList.size(); 2748 for (int i = 0; i < count; i++) { 2749 final ActiveAdmin admin = policy.mAdminList.get(i); 2750 if (admin.info.usesPolicy(reqPolicy)) { 2751 sendAdminCommandLocked(admin, action, adminExtras, null); 2752 } 2753 } 2754 } 2755 2756 /** 2757 * Send an update intent to all admins of a user and its profiles. Only send to admins that 2758 * enforce a specified policy. 2759 */ 2760 private void sendAdminCommandToSelfAndProfilesLocked(String action, int reqPolicy, 2761 int userHandle, Bundle adminExtras) { 2762 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userHandle); 2763 for (int profileId : profileIds) { 2764 sendAdminCommandLocked(action, reqPolicy, profileId, adminExtras); 2765 } 2766 } 2767 2768 /** 2769 * Sends a broadcast to each profile that share the password unlock with the given user id. 2770 */ 2771 private void sendAdminCommandForLockscreenPoliciesLocked( 2772 String action, int reqPolicy, int userHandle) { 2773 final Bundle extras = new Bundle(); 2774 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 2775 if (isSeparateProfileChallengeEnabled(userHandle)) { 2776 sendAdminCommandLocked(action, reqPolicy, userHandle, extras); 2777 } else { 2778 sendAdminCommandToSelfAndProfilesLocked(action, reqPolicy, userHandle, extras); 2779 } 2780 } 2781 2782 void removeActiveAdminLocked(final ComponentName adminReceiver, final int userHandle) { 2783 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 2784 DevicePolicyData policy = getUserData(userHandle); 2785 if (admin != null && !policy.mRemovingAdmins.contains(adminReceiver)) { 2786 policy.mRemovingAdmins.add(adminReceiver); 2787 sendAdminCommandLocked(admin, 2788 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLED, 2789 new BroadcastReceiver() { 2790 @Override 2791 public void onReceive(Context context, Intent intent) { 2792 removeAdminArtifacts(adminReceiver, userHandle); 2793 removePackageIfRequired(adminReceiver.getPackageName(), userHandle); 2794 } 2795 }); 2796 } 2797 } 2798 2799 2800 public DeviceAdminInfo findAdmin(ComponentName adminName, int userHandle, 2801 boolean throwForMissingPermission) { 2802 if (!mHasFeature) { 2803 return null; 2804 } 2805 enforceFullCrossUsersPermission(userHandle); 2806 ActivityInfo ai = null; 2807 try { 2808 ai = mIPackageManager.getReceiverInfo(adminName, 2809 PackageManager.GET_META_DATA | 2810 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS | 2811 PackageManager.MATCH_DIRECT_BOOT_AWARE | 2812 PackageManager.MATCH_DIRECT_BOOT_UNAWARE, userHandle); 2813 } catch (RemoteException e) { 2814 // shouldn't happen. 2815 } 2816 if (ai == null) { 2817 throw new IllegalArgumentException("Unknown admin: " + adminName); 2818 } 2819 2820 if (!permission.BIND_DEVICE_ADMIN.equals(ai.permission)) { 2821 final String message = "DeviceAdminReceiver " + adminName + " must be protected with " 2822 + permission.BIND_DEVICE_ADMIN; 2823 Slog.w(LOG_TAG, message); 2824 if (throwForMissingPermission && 2825 ai.applicationInfo.targetSdkVersion > Build.VERSION_CODES.M) { 2826 throw new IllegalArgumentException(message); 2827 } 2828 } 2829 2830 try { 2831 return new DeviceAdminInfo(mContext, ai); 2832 } catch (XmlPullParserException | IOException e) { 2833 Slog.w(LOG_TAG, "Bad device admin requested for user=" + userHandle + ": " + adminName, 2834 e); 2835 return null; 2836 } 2837 } 2838 2839 private File getPolicyFileDirectory(@UserIdInt int userId) { 2840 return userId == UserHandle.USER_SYSTEM 2841 ? new File(mInjector.getDevicePolicyFilePathForSystemUser()) 2842 : mInjector.environmentGetUserSystemDirectory(userId); 2843 } 2844 2845 private JournaledFile makeJournaledFile(@UserIdInt int userId) { 2846 final String base = new File(getPolicyFileDirectory(userId), DEVICE_POLICIES_XML) 2847 .getAbsolutePath(); 2848 if (VERBOSE_LOG) { 2849 Log.v(LOG_TAG, "Opening " + base); 2850 } 2851 return new JournaledFile(new File(base), new File(base + ".tmp")); 2852 } 2853 2854 private void saveSettingsLocked(int userHandle) { 2855 DevicePolicyData policy = getUserData(userHandle); 2856 JournaledFile journal = makeJournaledFile(userHandle); 2857 FileOutputStream stream = null; 2858 try { 2859 stream = new FileOutputStream(journal.chooseForWrite(), false); 2860 XmlSerializer out = new FastXmlSerializer(); 2861 out.setOutput(stream, StandardCharsets.UTF_8.name()); 2862 out.startDocument(null, true); 2863 2864 out.startTag(null, "policies"); 2865 if (policy.mRestrictionsProvider != null) { 2866 out.attribute(null, ATTR_PERMISSION_PROVIDER, 2867 policy.mRestrictionsProvider.flattenToString()); 2868 } 2869 if (policy.mUserSetupComplete) { 2870 out.attribute(null, ATTR_SETUP_COMPLETE, 2871 Boolean.toString(true)); 2872 } 2873 if (policy.mPaired) { 2874 out.attribute(null, ATTR_DEVICE_PAIRED, 2875 Boolean.toString(true)); 2876 } 2877 if (policy.mDeviceProvisioningConfigApplied) { 2878 out.attribute(null, ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED, 2879 Boolean.toString(true)); 2880 } 2881 if (policy.mUserProvisioningState != DevicePolicyManager.STATE_USER_UNMANAGED) { 2882 out.attribute(null, ATTR_PROVISIONING_STATE, 2883 Integer.toString(policy.mUserProvisioningState)); 2884 } 2885 if (policy.mPermissionPolicy != DevicePolicyManager.PERMISSION_POLICY_PROMPT) { 2886 out.attribute(null, ATTR_PERMISSION_POLICY, 2887 Integer.toString(policy.mPermissionPolicy)); 2888 } 2889 2890 // Serialize delegations. 2891 for (int i = 0; i < policy.mDelegationMap.size(); ++i) { 2892 final String delegatePackage = policy.mDelegationMap.keyAt(i); 2893 final List<String> scopes = policy.mDelegationMap.valueAt(i); 2894 2895 // Every "delegation" tag serializes the information of one delegate-scope pair. 2896 for (String scope : scopes) { 2897 out.startTag(null, "delegation"); 2898 out.attribute(null, "delegatePackage", delegatePackage); 2899 out.attribute(null, "scope", scope); 2900 out.endTag(null, "delegation"); 2901 } 2902 } 2903 2904 final int N = policy.mAdminList.size(); 2905 for (int i=0; i<N; i++) { 2906 ActiveAdmin ap = policy.mAdminList.get(i); 2907 if (ap != null) { 2908 out.startTag(null, "admin"); 2909 out.attribute(null, "name", ap.info.getComponent().flattenToString()); 2910 ap.writeToXml(out); 2911 out.endTag(null, "admin"); 2912 } 2913 } 2914 2915 if (policy.mPasswordOwner >= 0) { 2916 out.startTag(null, "password-owner"); 2917 out.attribute(null, "value", Integer.toString(policy.mPasswordOwner)); 2918 out.endTag(null, "password-owner"); 2919 } 2920 2921 if (policy.mFailedPasswordAttempts != 0) { 2922 out.startTag(null, "failed-password-attempts"); 2923 out.attribute(null, "value", Integer.toString(policy.mFailedPasswordAttempts)); 2924 out.endTag(null, "failed-password-attempts"); 2925 } 2926 2927 // For FDE devices only, we save this flag so we can report on password sufficiency 2928 // before the user enters their password for the first time after a reboot. For 2929 // security reasons, we don't want to store the full set of active password metrics. 2930 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 2931 out.startTag(null, TAG_PASSWORD_VALIDITY); 2932 out.attribute(null, ATTR_VALUE, 2933 Boolean.toString(policy.mPasswordValidAtLastCheckpoint)); 2934 out.endTag(null, TAG_PASSWORD_VALIDITY); 2935 } 2936 2937 for (int i = 0; i < policy.mAcceptedCaCertificates.size(); i++) { 2938 out.startTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2939 out.attribute(null, ATTR_NAME, policy.mAcceptedCaCertificates.valueAt(i)); 2940 out.endTag(null, TAG_ACCEPTED_CA_CERTIFICATES); 2941 } 2942 2943 for (int i=0; i<policy.mLockTaskPackages.size(); i++) { 2944 String component = policy.mLockTaskPackages.get(i); 2945 out.startTag(null, TAG_LOCK_TASK_COMPONENTS); 2946 out.attribute(null, "name", component); 2947 out.endTag(null, TAG_LOCK_TASK_COMPONENTS); 2948 } 2949 2950 if (policy.mLockTaskFeatures != DevicePolicyManager.LOCK_TASK_FEATURE_NONE) { 2951 out.startTag(null, TAG_LOCK_TASK_FEATURES); 2952 out.attribute(null, ATTR_VALUE, Integer.toString(policy.mLockTaskFeatures)); 2953 out.endTag(null, TAG_LOCK_TASK_FEATURES); 2954 } 2955 2956 if (policy.mStatusBarDisabled) { 2957 out.startTag(null, TAG_STATUS_BAR); 2958 out.attribute(null, ATTR_DISABLED, Boolean.toString(policy.mStatusBarDisabled)); 2959 out.endTag(null, TAG_STATUS_BAR); 2960 } 2961 2962 if (policy.doNotAskCredentialsOnBoot) { 2963 out.startTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2964 out.endTag(null, DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML); 2965 } 2966 2967 for (String id : policy.mAffiliationIds) { 2968 out.startTag(null, TAG_AFFILIATION_ID); 2969 out.attribute(null, ATTR_ID, id); 2970 out.endTag(null, TAG_AFFILIATION_ID); 2971 } 2972 2973 if (policy.mLastSecurityLogRetrievalTime >= 0) { 2974 out.startTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2975 out.attribute(null, ATTR_VALUE, 2976 Long.toString(policy.mLastSecurityLogRetrievalTime)); 2977 out.endTag(null, TAG_LAST_SECURITY_LOG_RETRIEVAL); 2978 } 2979 2980 if (policy.mLastBugReportRequestTime >= 0) { 2981 out.startTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2982 out.attribute(null, ATTR_VALUE, 2983 Long.toString(policy.mLastBugReportRequestTime)); 2984 out.endTag(null, TAG_LAST_BUG_REPORT_REQUEST); 2985 } 2986 2987 if (policy.mLastNetworkLogsRetrievalTime >= 0) { 2988 out.startTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2989 out.attribute(null, ATTR_VALUE, 2990 Long.toString(policy.mLastNetworkLogsRetrievalTime)); 2991 out.endTag(null, TAG_LAST_NETWORK_LOG_RETRIEVAL); 2992 } 2993 2994 if (policy.mAdminBroadcastPending) { 2995 out.startTag(null, TAG_ADMIN_BROADCAST_PENDING); 2996 out.attribute(null, ATTR_VALUE, 2997 Boolean.toString(policy.mAdminBroadcastPending)); 2998 out.endTag(null, TAG_ADMIN_BROADCAST_PENDING); 2999 } 3000 3001 if (policy.mInitBundle != null) { 3002 out.startTag(null, TAG_INITIALIZATION_BUNDLE); 3003 policy.mInitBundle.saveToXml(out); 3004 out.endTag(null, TAG_INITIALIZATION_BUNDLE); 3005 } 3006 3007 if (policy.mPasswordTokenHandle != 0) { 3008 out.startTag(null, TAG_PASSWORD_TOKEN_HANDLE); 3009 out.attribute(null, ATTR_VALUE, 3010 Long.toString(policy.mPasswordTokenHandle)); 3011 out.endTag(null, TAG_PASSWORD_TOKEN_HANDLE); 3012 } 3013 3014 if (policy.mCurrentInputMethodSet) { 3015 out.startTag(null, TAG_CURRENT_INPUT_METHOD_SET); 3016 out.endTag(null, TAG_CURRENT_INPUT_METHOD_SET); 3017 } 3018 3019 for (final String cert : policy.mOwnerInstalledCaCerts) { 3020 out.startTag(null, TAG_OWNER_INSTALLED_CA_CERT); 3021 out.attribute(null, ATTR_ALIAS, cert); 3022 out.endTag(null, TAG_OWNER_INSTALLED_CA_CERT); 3023 } 3024 3025 out.endTag(null, "policies"); 3026 3027 out.endDocument(); 3028 stream.flush(); 3029 FileUtils.sync(stream); 3030 stream.close(); 3031 journal.commit(); 3032 sendChangedNotification(userHandle); 3033 } catch (XmlPullParserException | IOException e) { 3034 Slog.w(LOG_TAG, "failed writing file", e); 3035 try { 3036 if (stream != null) { 3037 stream.close(); 3038 } 3039 } catch (IOException ex) { 3040 // Ignore 3041 } 3042 journal.rollback(); 3043 } 3044 } 3045 3046 private void sendChangedNotification(int userHandle) { 3047 Intent intent = new Intent(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 3048 intent.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 3049 long ident = mInjector.binderClearCallingIdentity(); 3050 try { 3051 mContext.sendBroadcastAsUser(intent, new UserHandle(userHandle)); 3052 } finally { 3053 mInjector.binderRestoreCallingIdentity(ident); 3054 } 3055 } 3056 3057 private void loadSettingsLocked(DevicePolicyData policy, int userHandle) { 3058 JournaledFile journal = makeJournaledFile(userHandle); 3059 FileInputStream stream = null; 3060 File file = journal.chooseForRead(); 3061 boolean needsRewrite = false; 3062 try { 3063 stream = new FileInputStream(file); 3064 XmlPullParser parser = Xml.newPullParser(); 3065 parser.setInput(stream, StandardCharsets.UTF_8.name()); 3066 3067 int type; 3068 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 3069 && type != XmlPullParser.START_TAG) { 3070 } 3071 String tag = parser.getName(); 3072 if (!"policies".equals(tag)) { 3073 throw new XmlPullParserException( 3074 "Settings do not start with policies tag: found " + tag); 3075 } 3076 3077 // Extract the permission provider component name if available 3078 String permissionProvider = parser.getAttributeValue(null, ATTR_PERMISSION_PROVIDER); 3079 if (permissionProvider != null) { 3080 policy.mRestrictionsProvider = ComponentName.unflattenFromString(permissionProvider); 3081 } 3082 String userSetupComplete = parser.getAttributeValue(null, ATTR_SETUP_COMPLETE); 3083 if (userSetupComplete != null && Boolean.toString(true).equals(userSetupComplete)) { 3084 policy.mUserSetupComplete = true; 3085 } 3086 String paired = parser.getAttributeValue(null, ATTR_DEVICE_PAIRED); 3087 if (paired != null && Boolean.toString(true).equals(paired)) { 3088 policy.mPaired = true; 3089 } 3090 String deviceProvisioningConfigApplied = parser.getAttributeValue(null, 3091 ATTR_DEVICE_PROVISIONING_CONFIG_APPLIED); 3092 if (deviceProvisioningConfigApplied != null 3093 && Boolean.toString(true).equals(deviceProvisioningConfigApplied)) { 3094 policy.mDeviceProvisioningConfigApplied = true; 3095 } 3096 String provisioningState = parser.getAttributeValue(null, ATTR_PROVISIONING_STATE); 3097 if (!TextUtils.isEmpty(provisioningState)) { 3098 policy.mUserProvisioningState = Integer.parseInt(provisioningState); 3099 } 3100 String permissionPolicy = parser.getAttributeValue(null, ATTR_PERMISSION_POLICY); 3101 if (!TextUtils.isEmpty(permissionPolicy)) { 3102 policy.mPermissionPolicy = Integer.parseInt(permissionPolicy); 3103 } 3104 // Check for delegation compatibility with pre-O. 3105 // TODO(edmanp) remove in P. 3106 { 3107 final String certDelegate = parser.getAttributeValue(null, 3108 ATTR_DELEGATED_CERT_INSTALLER); 3109 if (certDelegate != null) { 3110 List<String> scopes = policy.mDelegationMap.get(certDelegate); 3111 if (scopes == null) { 3112 scopes = new ArrayList<>(); 3113 policy.mDelegationMap.put(certDelegate, scopes); 3114 } 3115 if (!scopes.contains(DELEGATION_CERT_INSTALL)) { 3116 scopes.add(DELEGATION_CERT_INSTALL); 3117 needsRewrite = true; 3118 } 3119 } 3120 final String appRestrictionsDelegate = parser.getAttributeValue(null, 3121 ATTR_APPLICATION_RESTRICTIONS_MANAGER); 3122 if (appRestrictionsDelegate != null) { 3123 List<String> scopes = policy.mDelegationMap.get(appRestrictionsDelegate); 3124 if (scopes == null) { 3125 scopes = new ArrayList<>(); 3126 policy.mDelegationMap.put(appRestrictionsDelegate, scopes); 3127 } 3128 if (!scopes.contains(DELEGATION_APP_RESTRICTIONS)) { 3129 scopes.add(DELEGATION_APP_RESTRICTIONS); 3130 needsRewrite = true; 3131 } 3132 } 3133 } 3134 3135 type = parser.next(); 3136 int outerDepth = parser.getDepth(); 3137 policy.mLockTaskPackages.clear(); 3138 policy.mAdminList.clear(); 3139 policy.mAdminMap.clear(); 3140 policy.mAffiliationIds.clear(); 3141 policy.mOwnerInstalledCaCerts.clear(); 3142 while ((type=parser.next()) != XmlPullParser.END_DOCUMENT 3143 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 3144 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 3145 continue; 3146 } 3147 tag = parser.getName(); 3148 if ("admin".equals(tag)) { 3149 String name = parser.getAttributeValue(null, "name"); 3150 try { 3151 DeviceAdminInfo dai = findAdmin( 3152 ComponentName.unflattenFromString(name), userHandle, 3153 /* throwForMissingPermission= */ false); 3154 if (VERBOSE_LOG 3155 && (UserHandle.getUserId(dai.getActivityInfo().applicationInfo.uid) 3156 != userHandle)) { 3157 Slog.w(LOG_TAG, "findAdmin returned an incorrect uid " 3158 + dai.getActivityInfo().applicationInfo.uid + " for user " 3159 + userHandle); 3160 } 3161 if (dai != null) { 3162 ActiveAdmin ap = new ActiveAdmin(dai, /* parent */ false); 3163 ap.readFromXml(parser); 3164 policy.mAdminMap.put(ap.info.getComponent(), ap); 3165 } 3166 } catch (RuntimeException e) { 3167 Slog.w(LOG_TAG, "Failed loading admin " + name, e); 3168 } 3169 } else if ("delegation".equals(tag)) { 3170 // Parse delegation info. 3171 final String delegatePackage = parser.getAttributeValue(null, 3172 "delegatePackage"); 3173 final String scope = parser.getAttributeValue(null, "scope"); 3174 3175 // Get a reference to the scopes list for the delegatePackage. 3176 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 3177 // Or make a new list if none was found. 3178 if (scopes == null) { 3179 scopes = new ArrayList<>(); 3180 policy.mDelegationMap.put(delegatePackage, scopes); 3181 } 3182 // Add the new scope to the list of delegatePackage if it's not already there. 3183 if (!scopes.contains(scope)) { 3184 scopes.add(scope); 3185 } 3186 } else if ("failed-password-attempts".equals(tag)) { 3187 policy.mFailedPasswordAttempts = Integer.parseInt( 3188 parser.getAttributeValue(null, "value")); 3189 } else if ("password-owner".equals(tag)) { 3190 policy.mPasswordOwner = Integer.parseInt( 3191 parser.getAttributeValue(null, "value")); 3192 } else if (TAG_ACCEPTED_CA_CERTIFICATES.equals(tag)) { 3193 policy.mAcceptedCaCertificates.add(parser.getAttributeValue(null, ATTR_NAME)); 3194 } else if (TAG_LOCK_TASK_COMPONENTS.equals(tag)) { 3195 policy.mLockTaskPackages.add(parser.getAttributeValue(null, "name")); 3196 } else if (TAG_LOCK_TASK_FEATURES.equals(tag)) { 3197 policy.mLockTaskFeatures = Integer.parseInt( 3198 parser.getAttributeValue(null, ATTR_VALUE)); 3199 } else if (TAG_STATUS_BAR.equals(tag)) { 3200 policy.mStatusBarDisabled = Boolean.parseBoolean( 3201 parser.getAttributeValue(null, ATTR_DISABLED)); 3202 } else if (DO_NOT_ASK_CREDENTIALS_ON_BOOT_XML.equals(tag)) { 3203 policy.doNotAskCredentialsOnBoot = true; 3204 } else if (TAG_AFFILIATION_ID.equals(tag)) { 3205 policy.mAffiliationIds.add(parser.getAttributeValue(null, ATTR_ID)); 3206 } else if (TAG_LAST_SECURITY_LOG_RETRIEVAL.equals(tag)) { 3207 policy.mLastSecurityLogRetrievalTime = Long.parseLong( 3208 parser.getAttributeValue(null, ATTR_VALUE)); 3209 } else if (TAG_LAST_BUG_REPORT_REQUEST.equals(tag)) { 3210 policy.mLastBugReportRequestTime = Long.parseLong( 3211 parser.getAttributeValue(null, ATTR_VALUE)); 3212 } else if (TAG_LAST_NETWORK_LOG_RETRIEVAL.equals(tag)) { 3213 policy.mLastNetworkLogsRetrievalTime = Long.parseLong( 3214 parser.getAttributeValue(null, ATTR_VALUE)); 3215 } else if (TAG_ADMIN_BROADCAST_PENDING.equals(tag)) { 3216 String pending = parser.getAttributeValue(null, ATTR_VALUE); 3217 policy.mAdminBroadcastPending = Boolean.toString(true).equals(pending); 3218 } else if (TAG_INITIALIZATION_BUNDLE.equals(tag)) { 3219 policy.mInitBundle = PersistableBundle.restoreFromXml(parser); 3220 } else if ("active-password".equals(tag)) { 3221 // Remove password metrics from saved settings, as we no longer wish to store 3222 // these on disk 3223 needsRewrite = true; 3224 } else if (TAG_PASSWORD_VALIDITY.equals(tag)) { 3225 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 3226 // This flag is only used for FDE devices 3227 policy.mPasswordValidAtLastCheckpoint = Boolean.parseBoolean( 3228 parser.getAttributeValue(null, ATTR_VALUE)); 3229 } 3230 } else if (TAG_PASSWORD_TOKEN_HANDLE.equals(tag)) { 3231 policy.mPasswordTokenHandle = Long.parseLong( 3232 parser.getAttributeValue(null, ATTR_VALUE)); 3233 } else if (TAG_CURRENT_INPUT_METHOD_SET.equals(tag)) { 3234 policy.mCurrentInputMethodSet = true; 3235 } else if (TAG_OWNER_INSTALLED_CA_CERT.equals(tag)) { 3236 policy.mOwnerInstalledCaCerts.add(parser.getAttributeValue(null, ATTR_ALIAS)); 3237 } else { 3238 Slog.w(LOG_TAG, "Unknown tag: " + tag); 3239 XmlUtils.skipCurrentTag(parser); 3240 } 3241 } 3242 } catch (FileNotFoundException e) { 3243 // Don't be noisy, this is normal if we haven't defined any policies. 3244 } catch (NullPointerException | NumberFormatException | XmlPullParserException | IOException 3245 | IndexOutOfBoundsException e) { 3246 Slog.w(LOG_TAG, "failed parsing " + file, e); 3247 } 3248 try { 3249 if (stream != null) { 3250 stream.close(); 3251 } 3252 } catch (IOException e) { 3253 // Ignore 3254 } 3255 3256 // Generate a list of admins from the admin map 3257 policy.mAdminList.addAll(policy.mAdminMap.values()); 3258 3259 // Might need to upgrade the file by rewriting it 3260 if (needsRewrite) { 3261 saveSettingsLocked(userHandle); 3262 } 3263 3264 validatePasswordOwnerLocked(policy); 3265 updateMaximumTimeToLockLocked(userHandle); 3266 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userHandle); 3267 updateLockTaskFeaturesLocked(policy.mLockTaskFeatures, userHandle); 3268 if (policy.mStatusBarDisabled) { 3269 setStatusBarDisabledInternal(policy.mStatusBarDisabled, userHandle); 3270 } 3271 } 3272 3273 private void updateLockTaskPackagesLocked(List<String> packages, int userId) { 3274 long ident = mInjector.binderClearCallingIdentity(); 3275 try { 3276 mInjector.getIActivityManager() 3277 .updateLockTaskPackages(userId, packages.toArray(new String[packages.size()])); 3278 } catch (RemoteException e) { 3279 // Not gonna happen. 3280 } finally { 3281 mInjector.binderRestoreCallingIdentity(ident); 3282 } 3283 } 3284 3285 private void updateLockTaskFeaturesLocked(int flags, int userId) { 3286 long ident = mInjector.binderClearCallingIdentity(); 3287 try { 3288 mInjector.getIActivityManager() 3289 .updateLockTaskFeatures(userId, flags); 3290 } catch (RemoteException e) { 3291 // Not gonna happen. 3292 } finally { 3293 mInjector.binderRestoreCallingIdentity(ident); 3294 } 3295 } 3296 3297 private void updateDeviceOwnerLocked() { 3298 long ident = mInjector.binderClearCallingIdentity(); 3299 try { 3300 // TODO This is to prevent DO from getting "clear data"ed, but it should also check the 3301 // user id and also protect all other DAs too. 3302 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 3303 if (deviceOwnerComponent != null) { 3304 mInjector.getIActivityManager() 3305 .updateDeviceOwner(deviceOwnerComponent.getPackageName()); 3306 } 3307 } catch (RemoteException e) { 3308 // Not gonna happen. 3309 } finally { 3310 mInjector.binderRestoreCallingIdentity(ident); 3311 } 3312 } 3313 3314 static void validateQualityConstant(int quality) { 3315 switch (quality) { 3316 case DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED: 3317 case DevicePolicyManager.PASSWORD_QUALITY_BIOMETRIC_WEAK: 3318 case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING: 3319 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC: 3320 case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX: 3321 case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC: 3322 case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC: 3323 case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX: 3324 case DevicePolicyManager.PASSWORD_QUALITY_MANAGED: 3325 return; 3326 } 3327 throw new IllegalArgumentException("Invalid quality constant: 0x" 3328 + Integer.toHexString(quality)); 3329 } 3330 3331 void validatePasswordOwnerLocked(DevicePolicyData policy) { 3332 if (policy.mPasswordOwner >= 0) { 3333 boolean haveOwner = false; 3334 for (int i = policy.mAdminList.size() - 1; i >= 0; i--) { 3335 if (policy.mAdminList.get(i).getUid() == policy.mPasswordOwner) { 3336 haveOwner = true; 3337 break; 3338 } 3339 } 3340 if (!haveOwner) { 3341 Slog.w(LOG_TAG, "Previous password owner " + policy.mPasswordOwner 3342 + " no longer active; disabling"); 3343 policy.mPasswordOwner = -1; 3344 } 3345 } 3346 } 3347 3348 @VisibleForTesting 3349 @Override 3350 void systemReady(int phase) { 3351 if (!mHasFeature) { 3352 return; 3353 } 3354 switch (phase) { 3355 case SystemService.PHASE_LOCK_SETTINGS_READY: 3356 onLockSettingsReady(); 3357 loadAdminDataAsync(); 3358 mOwners.systemReady(); 3359 break; 3360 case SystemService.PHASE_ACTIVITY_MANAGER_READY: 3361 maybeStartSecurityLogMonitorOnActivityManagerReady(); 3362 break; 3363 case SystemService.PHASE_BOOT_COMPLETED: 3364 ensureDeviceOwnerUserStarted(); // TODO Consider better place to do this. 3365 break; 3366 } 3367 } 3368 3369 private void onLockSettingsReady() { 3370 getUserData(UserHandle.USER_SYSTEM); 3371 loadOwners(); 3372 cleanUpOldUsers(); 3373 maybeSetDefaultProfileOwnerUserRestrictions(); 3374 handleStartUser(UserHandle.USER_SYSTEM); 3375 maybeLogStart(); 3376 3377 // Register an observer for watching for user setup complete and settings changes. 3378 mSetupContentObserver.register(); 3379 // Initialize the user setup state, to handle the upgrade case. 3380 updateUserSetupCompleteAndPaired(); 3381 3382 List<String> packageList; 3383 synchronized (getLockObject()) { 3384 packageList = getKeepUninstalledPackagesLocked(); 3385 } 3386 if (packageList != null) { 3387 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 3388 } 3389 3390 synchronized (getLockObject()) { 3391 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 3392 if (deviceOwner != null) { 3393 // Push the force-ephemeral-users policy to the user manager. 3394 mUserManagerInternal.setForceEphemeralUsers(deviceOwner.forceEphemeralUsers); 3395 3396 // Update user switcher message to activity manager. 3397 ActivityManagerInternal activityManagerInternal = 3398 mInjector.getActivityManagerInternal(); 3399 activityManagerInternal.setSwitchingFromSystemUserMessage( 3400 deviceOwner.startUserSessionMessage); 3401 activityManagerInternal.setSwitchingToSystemUserMessage( 3402 deviceOwner.endUserSessionMessage); 3403 } 3404 3405 revertTransferOwnershipIfNecessaryLocked(); 3406 } 3407 } 3408 3409 private void revertTransferOwnershipIfNecessaryLocked() { 3410 if (!mTransferOwnershipMetadataManager.metadataFileExists()) { 3411 return; 3412 } 3413 Slog.e(LOG_TAG, "Owner transfer metadata file exists! Reverting transfer."); 3414 final TransferOwnershipMetadataManager.Metadata metadata = 3415 mTransferOwnershipMetadataManager.loadMetadataFile(); 3416 // Revert transfer 3417 if (metadata.adminType.equals(ADMIN_TYPE_PROFILE_OWNER)) { 3418 transferProfileOwnershipLocked(metadata.targetComponent, metadata.sourceComponent, 3419 metadata.userId); 3420 deleteTransferOwnershipMetadataFileLocked(); 3421 deleteTransferOwnershipBundleLocked(metadata.userId); 3422 } else if (metadata.adminType.equals(ADMIN_TYPE_DEVICE_OWNER)) { 3423 transferDeviceOwnershipLocked(metadata.targetComponent, metadata.sourceComponent, 3424 metadata.userId); 3425 deleteTransferOwnershipMetadataFileLocked(); 3426 deleteTransferOwnershipBundleLocked(metadata.userId); 3427 } 3428 updateSystemUpdateFreezePeriodsRecord(/* saveIfChanged */ true); 3429 } 3430 3431 private void maybeLogStart() { 3432 if (!SecurityLog.isLoggingEnabled()) { 3433 return; 3434 } 3435 final String verifiedBootState = 3436 mInjector.systemPropertiesGet("ro.boot.verifiedbootstate"); 3437 final String verityMode = mInjector.systemPropertiesGet("ro.boot.veritymode"); 3438 SecurityLog.writeEvent(SecurityLog.TAG_OS_STARTUP, verifiedBootState, verityMode); 3439 } 3440 3441 private void ensureDeviceOwnerUserStarted() { 3442 final int userId; 3443 synchronized (getLockObject()) { 3444 if (!mOwners.hasDeviceOwner()) { 3445 return; 3446 } 3447 userId = mOwners.getDeviceOwnerUserId(); 3448 } 3449 if (VERBOSE_LOG) { 3450 Log.v(LOG_TAG, "Starting non-system DO user: " + userId); 3451 } 3452 if (userId != UserHandle.USER_SYSTEM) { 3453 try { 3454 mInjector.getIActivityManager().startUserInBackground(userId); 3455 3456 // STOPSHIP Prevent the DO user from being killed. 3457 3458 } catch (RemoteException e) { 3459 Slog.w(LOG_TAG, "Exception starting user", e); 3460 } 3461 } 3462 } 3463 3464 @Override 3465 void handleStartUser(int userId) { 3466 updateScreenCaptureDisabled(userId, 3467 getScreenCaptureDisabled(null, userId)); 3468 pushUserRestrictions(userId); 3469 3470 startOwnerService(userId, "start-user"); 3471 } 3472 3473 @Override 3474 void handleUnlockUser(int userId) { 3475 startOwnerService(userId, "unlock-user"); 3476 } 3477 3478 @Override 3479 void handleStopUser(int userId) { 3480 stopOwnerService(userId, "stop-user"); 3481 } 3482 3483 private void startOwnerService(int userId, String actionForLog) { 3484 final ComponentName owner = getOwnerComponent(userId); 3485 if (owner != null) { 3486 mDeviceAdminServiceController.startServiceForOwner( 3487 owner.getPackageName(), userId, actionForLog); 3488 } 3489 } 3490 3491 private void stopOwnerService(int userId, String actionForLog) { 3492 mDeviceAdminServiceController.stopServiceForOwner(userId, actionForLog); 3493 } 3494 3495 private void cleanUpOldUsers() { 3496 // This is needed in case the broadcast {@link Intent.ACTION_USER_REMOVED} was not handled 3497 // before reboot 3498 Set<Integer> usersWithProfileOwners; 3499 Set<Integer> usersWithData; 3500 synchronized (getLockObject()) { 3501 usersWithProfileOwners = mOwners.getProfileOwnerKeys(); 3502 usersWithData = new ArraySet<>(); 3503 for (int i = 0; i < mUserData.size(); i++) { 3504 usersWithData.add(mUserData.keyAt(i)); 3505 } 3506 } 3507 List<UserInfo> allUsers = mUserManager.getUsers(); 3508 3509 Set<Integer> deletedUsers = new ArraySet<>(); 3510 deletedUsers.addAll(usersWithProfileOwners); 3511 deletedUsers.addAll(usersWithData); 3512 for (UserInfo userInfo : allUsers) { 3513 deletedUsers.remove(userInfo.id); 3514 } 3515 for (Integer userId : deletedUsers) { 3516 removeUserData(userId); 3517 } 3518 } 3519 3520 private void handlePasswordExpirationNotification(int userHandle) { 3521 final Bundle adminExtras = new Bundle(); 3522 adminExtras.putParcelable(Intent.EXTRA_USER, UserHandle.of(userHandle)); 3523 3524 synchronized (getLockObject()) { 3525 final long now = System.currentTimeMillis(); 3526 3527 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 3528 userHandle, /* parent */ false); 3529 final int N = admins.size(); 3530 for (int i = 0; i < N; i++) { 3531 ActiveAdmin admin = admins.get(i); 3532 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD) 3533 && admin.passwordExpirationTimeout > 0L 3534 && now >= admin.passwordExpirationDate - EXPIRATION_GRACE_PERIOD_MS 3535 && admin.passwordExpirationDate > 0L) { 3536 sendAdminCommandLocked(admin, 3537 DeviceAdminReceiver.ACTION_PASSWORD_EXPIRING, adminExtras, null); 3538 } 3539 } 3540 setExpirationAlarmCheckLocked(mContext, userHandle, /* parent */ false); 3541 } 3542 } 3543 3544 /** 3545 * Clean up internal state when the set of installed trusted CA certificates changes. 3546 * 3547 * @param userHandle user to check for. This must be a real user and not, for example, 3548 * {@link UserHandle#ALL}. 3549 * @param installedCertificates the full set of certificate authorities currently installed for 3550 * {@param userHandle}. After calling this function, {@code mAcceptedCaCertificates} will 3551 * correspond to some subset of this. 3552 */ 3553 protected void onInstalledCertificatesChanged(final UserHandle userHandle, 3554 final @NonNull Collection<String> installedCertificates) { 3555 if (!mHasFeature) { 3556 return; 3557 } 3558 enforceManageUsers(); 3559 3560 synchronized (getLockObject()) { 3561 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 3562 3563 boolean changed = false; 3564 changed |= policy.mAcceptedCaCertificates.retainAll(installedCertificates); 3565 changed |= policy.mOwnerInstalledCaCerts.retainAll(installedCertificates); 3566 if (changed) { 3567 saveSettingsLocked(userHandle.getIdentifier()); 3568 } 3569 } 3570 } 3571 3572 /** 3573 * Internal method used by {@link CertificateMonitor}. 3574 */ 3575 protected Set<String> getAcceptedCaCertificates(final UserHandle userHandle) { 3576 if (!mHasFeature) { 3577 return Collections.<String> emptySet(); 3578 } 3579 synchronized (getLockObject()) { 3580 final DevicePolicyData policy = getUserData(userHandle.getIdentifier()); 3581 return policy.mAcceptedCaCertificates; 3582 } 3583 } 3584 3585 /** 3586 * @param adminReceiver The admin to add 3587 * @param refreshing true = update an active admin, no error 3588 */ 3589 @Override 3590 public void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle) { 3591 if (!mHasFeature) { 3592 return; 3593 } 3594 setActiveAdmin(adminReceiver, refreshing, userHandle, null); 3595 } 3596 3597 private void setActiveAdmin(ComponentName adminReceiver, boolean refreshing, int userHandle, 3598 Bundle onEnableData) { 3599 mContext.enforceCallingOrSelfPermission( 3600 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3601 enforceFullCrossUsersPermission(userHandle); 3602 3603 DevicePolicyData policy = getUserData(userHandle); 3604 DeviceAdminInfo info = findAdmin(adminReceiver, userHandle, 3605 /* throwForMissingPermission= */ true); 3606 synchronized (getLockObject()) { 3607 checkActiveAdminPrecondition(adminReceiver, info, policy); 3608 long ident = mInjector.binderClearCallingIdentity(); 3609 try { 3610 final ActiveAdmin existingAdmin 3611 = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3612 if (!refreshing && existingAdmin != null) { 3613 throw new IllegalArgumentException("Admin is already added"); 3614 } 3615 ActiveAdmin newAdmin = new ActiveAdmin(info, /* parent */ false); 3616 newAdmin.testOnlyAdmin = 3617 (existingAdmin != null) ? existingAdmin.testOnlyAdmin 3618 : isPackageTestOnly(adminReceiver.getPackageName(), userHandle); 3619 policy.mAdminMap.put(adminReceiver, newAdmin); 3620 int replaceIndex = -1; 3621 final int N = policy.mAdminList.size(); 3622 for (int i=0; i < N; i++) { 3623 ActiveAdmin oldAdmin = policy.mAdminList.get(i); 3624 if (oldAdmin.info.getComponent().equals(adminReceiver)) { 3625 replaceIndex = i; 3626 break; 3627 } 3628 } 3629 if (replaceIndex == -1) { 3630 policy.mAdminList.add(newAdmin); 3631 enableIfNecessary(info.getPackageName(), userHandle); 3632 mUsageStatsManagerInternal.onActiveAdminAdded( 3633 adminReceiver.getPackageName(), userHandle); 3634 } else { 3635 policy.mAdminList.set(replaceIndex, newAdmin); 3636 } 3637 saveSettingsLocked(userHandle); 3638 sendAdminCommandLocked(newAdmin, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 3639 onEnableData, null); 3640 } finally { 3641 mInjector.binderRestoreCallingIdentity(ident); 3642 } 3643 } 3644 } 3645 3646 private void loadAdminDataAsync() { 3647 mInjector.postOnSystemServerInitThreadPool(() -> { 3648 pushActiveAdminPackages(); 3649 mUsageStatsManagerInternal.onAdminDataAvailable(); 3650 pushAllMeteredRestrictedPackages(); 3651 mInjector.getNetworkPolicyManagerInternal().onAdminDataAvailable(); 3652 }); 3653 } 3654 3655 private void pushActiveAdminPackages() { 3656 synchronized (getLockObject()) { 3657 final List<UserInfo> users = mUserManager.getUsers(); 3658 for (int i = users.size() - 1; i >= 0; --i) { 3659 final int userId = users.get(i).id; 3660 mUsageStatsManagerInternal.setActiveAdminApps( 3661 getActiveAdminPackagesLocked(userId), userId); 3662 } 3663 } 3664 } 3665 3666 private void pushAllMeteredRestrictedPackages() { 3667 synchronized (getLockObject()) { 3668 final List<UserInfo> users = mUserManager.getUsers(); 3669 for (int i = users.size() - 1; i >= 0; --i) { 3670 final int userId = users.get(i).id; 3671 mInjector.getNetworkPolicyManagerInternal().setMeteredRestrictedPackagesAsync( 3672 getMeteredDisabledPackagesLocked(userId), userId); 3673 } 3674 } 3675 } 3676 3677 private void pushActiveAdminPackagesLocked(int userId) { 3678 mUsageStatsManagerInternal.setActiveAdminApps( 3679 getActiveAdminPackagesLocked(userId), userId); 3680 } 3681 3682 private Set<String> getActiveAdminPackagesLocked(int userId) { 3683 final DevicePolicyData policy = getUserData(userId); 3684 Set<String> adminPkgs = null; 3685 for (int i = policy.mAdminList.size() - 1; i >= 0; --i) { 3686 final String pkgName = policy.mAdminList.get(i).info.getPackageName(); 3687 if (adminPkgs == null) { 3688 adminPkgs = new ArraySet<>(); 3689 } 3690 adminPkgs.add(pkgName); 3691 } 3692 return adminPkgs; 3693 } 3694 3695 private void transferActiveAdminUncheckedLocked(ComponentName incomingReceiver, 3696 ComponentName outgoingReceiver, int userHandle) { 3697 final DevicePolicyData policy = getUserData(userHandle); 3698 if (!policy.mAdminMap.containsKey(outgoingReceiver) 3699 && policy.mAdminMap.containsKey(incomingReceiver)) { 3700 // Nothing to transfer - the incoming receiver is already the active admin. 3701 return; 3702 } 3703 final DeviceAdminInfo incomingDeviceInfo = findAdmin(incomingReceiver, userHandle, 3704 /* throwForMissingPermission= */ true); 3705 final ActiveAdmin adminToTransfer = policy.mAdminMap.get(outgoingReceiver); 3706 final int oldAdminUid = adminToTransfer.getUid(); 3707 3708 adminToTransfer.transfer(incomingDeviceInfo); 3709 policy.mAdminMap.remove(outgoingReceiver); 3710 policy.mAdminMap.put(incomingReceiver, adminToTransfer); 3711 if (policy.mPasswordOwner == oldAdminUid) { 3712 policy.mPasswordOwner = adminToTransfer.getUid(); 3713 } 3714 3715 saveSettingsLocked(userHandle); 3716 sendAdminCommandLocked(adminToTransfer, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 3717 null, null); 3718 } 3719 3720 private void checkActiveAdminPrecondition(ComponentName adminReceiver, DeviceAdminInfo info, 3721 DevicePolicyData policy) { 3722 if (info == null) { 3723 throw new IllegalArgumentException("Bad admin: " + adminReceiver); 3724 } 3725 if (!info.getActivityInfo().applicationInfo.isInternal()) { 3726 throw new IllegalArgumentException("Only apps in internal storage can be active admin: " 3727 + adminReceiver); 3728 } 3729 if (info.getActivityInfo().applicationInfo.isInstantApp()) { 3730 throw new IllegalArgumentException("Instant apps cannot be device admins: " 3731 + adminReceiver); 3732 } 3733 if (policy.mRemovingAdmins.contains(adminReceiver)) { 3734 throw new IllegalArgumentException( 3735 "Trying to set an admin which is being removed"); 3736 } 3737 } 3738 3739 @Override 3740 public boolean isAdminActive(ComponentName adminReceiver, int userHandle) { 3741 if (!mHasFeature) { 3742 return false; 3743 } 3744 enforceFullCrossUsersPermission(userHandle); 3745 synchronized (getLockObject()) { 3746 return getActiveAdminUncheckedLocked(adminReceiver, userHandle) != null; 3747 } 3748 } 3749 3750 @Override 3751 public boolean isRemovingAdmin(ComponentName adminReceiver, int userHandle) { 3752 if (!mHasFeature) { 3753 return false; 3754 } 3755 enforceFullCrossUsersPermission(userHandle); 3756 synchronized (getLockObject()) { 3757 DevicePolicyData policyData = getUserData(userHandle); 3758 return policyData.mRemovingAdmins.contains(adminReceiver); 3759 } 3760 } 3761 3762 @Override 3763 public boolean hasGrantedPolicy(ComponentName adminReceiver, int policyId, int userHandle) { 3764 if (!mHasFeature) { 3765 return false; 3766 } 3767 enforceFullCrossUsersPermission(userHandle); 3768 synchronized (getLockObject()) { 3769 ActiveAdmin administrator = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3770 if (administrator == null) { 3771 throw new SecurityException("No active admin " + adminReceiver); 3772 } 3773 return administrator.info.usesPolicy(policyId); 3774 } 3775 } 3776 3777 @Override 3778 @SuppressWarnings("unchecked") 3779 public List<ComponentName> getActiveAdmins(int userHandle) { 3780 if (!mHasFeature) { 3781 return Collections.EMPTY_LIST; 3782 } 3783 3784 enforceFullCrossUsersPermission(userHandle); 3785 synchronized (getLockObject()) { 3786 DevicePolicyData policy = getUserData(userHandle); 3787 final int N = policy.mAdminList.size(); 3788 if (N <= 0) { 3789 return null; 3790 } 3791 ArrayList<ComponentName> res = new ArrayList<ComponentName>(N); 3792 for (int i=0; i<N; i++) { 3793 res.add(policy.mAdminList.get(i).info.getComponent()); 3794 } 3795 return res; 3796 } 3797 } 3798 3799 @Override 3800 public boolean packageHasActiveAdmins(String packageName, int userHandle) { 3801 if (!mHasFeature) { 3802 return false; 3803 } 3804 enforceFullCrossUsersPermission(userHandle); 3805 synchronized (getLockObject()) { 3806 DevicePolicyData policy = getUserData(userHandle); 3807 final int N = policy.mAdminList.size(); 3808 for (int i=0; i<N; i++) { 3809 if (policy.mAdminList.get(i).info.getPackageName().equals(packageName)) { 3810 return true; 3811 } 3812 } 3813 return false; 3814 } 3815 } 3816 3817 @Override 3818 public void forceRemoveActiveAdmin(ComponentName adminReceiver, int userHandle) { 3819 if (!mHasFeature) { 3820 return; 3821 } 3822 Preconditions.checkNotNull(adminReceiver, "ComponentName is null"); 3823 enforceShell("forceRemoveActiveAdmin"); 3824 long ident = mInjector.binderClearCallingIdentity(); 3825 try { 3826 synchronized (getLockObject()) { 3827 if (!isAdminTestOnlyLocked(adminReceiver, userHandle)) { 3828 throw new SecurityException("Attempt to remove non-test admin " 3829 + adminReceiver + " " + userHandle); 3830 } 3831 3832 // If admin is a device or profile owner tidy that up first. 3833 if (isDeviceOwner(adminReceiver, userHandle)) { 3834 clearDeviceOwnerLocked(getDeviceOwnerAdminLocked(), userHandle); 3835 } 3836 if (isProfileOwner(adminReceiver, userHandle)) { 3837 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, 3838 userHandle, /* parent */ false); 3839 clearProfileOwnerLocked(admin, userHandle); 3840 } 3841 } 3842 // Remove the admin skipping sending the broadcast. 3843 removeAdminArtifacts(adminReceiver, userHandle); 3844 Slog.i(LOG_TAG, "Admin " + adminReceiver + " removed from user " + userHandle); 3845 } finally { 3846 mInjector.binderRestoreCallingIdentity(ident); 3847 } 3848 } 3849 3850 private void clearDeviceOwnerUserRestrictionLocked(UserHandle userHandle) { 3851 // ManagedProvisioning/DPC sets DISALLOW_ADD_USER. Clear to recover to the original state 3852 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_USER, userHandle)) { 3853 mUserManager.setUserRestriction(UserManager.DISALLOW_ADD_USER, false, userHandle); 3854 } 3855 } 3856 3857 /** 3858 * Return if a given package has testOnly="true", in which case we'll relax certain rules 3859 * for CTS. 3860 * 3861 * DO NOT use this method except in {@link #setActiveAdmin}. Use {@link #isAdminTestOnlyLocked} 3862 * to check wehter an active admin is test-only or not. 3863 * 3864 * The system allows this flag to be changed when an app is updated, which is not good 3865 * for us. So we persist the flag in {@link ActiveAdmin} when an admin is first installed, 3866 * and used the persisted version in actual checks. (See b/31382361 and b/28928996) 3867 */ 3868 private boolean isPackageTestOnly(String packageName, int userHandle) { 3869 final ApplicationInfo ai; 3870 try { 3871 ai = mInjector.getIPackageManager().getApplicationInfo(packageName, 3872 (PackageManager.MATCH_DIRECT_BOOT_AWARE 3873 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE), userHandle); 3874 } catch (RemoteException e) { 3875 throw new IllegalStateException(e); 3876 } 3877 if (ai == null) { 3878 throw new IllegalStateException("Couldn't find package: " 3879 + packageName + " on user " + userHandle); 3880 } 3881 return (ai.flags & ApplicationInfo.FLAG_TEST_ONLY) != 0; 3882 } 3883 3884 /** 3885 * See {@link #isPackageTestOnly}. 3886 */ 3887 private boolean isAdminTestOnlyLocked(ComponentName who, int userHandle) { 3888 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 3889 return (admin != null) && admin.testOnlyAdmin; 3890 } 3891 3892 private void enforceShell(String method) { 3893 final int callingUid = mInjector.binderGetCallingUid(); 3894 if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) { 3895 throw new SecurityException("Non-shell user attempted to call " + method); 3896 } 3897 } 3898 3899 @Override 3900 public void removeActiveAdmin(ComponentName adminReceiver, int userHandle) { 3901 if (!mHasFeature) { 3902 return; 3903 } 3904 enforceFullCrossUsersPermission(userHandle); 3905 enforceUserUnlocked(userHandle); 3906 synchronized (getLockObject()) { 3907 ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 3908 if (admin == null) { 3909 return; 3910 } 3911 // Active device/profile owners must remain active admins. 3912 if (isDeviceOwner(adminReceiver, userHandle) 3913 || isProfileOwner(adminReceiver, userHandle)) { 3914 Slog.e(LOG_TAG, "Device/profile owner cannot be removed: component=" + 3915 adminReceiver); 3916 return; 3917 } 3918 if (admin.getUid() != mInjector.binderGetCallingUid()) { 3919 mContext.enforceCallingOrSelfPermission( 3920 android.Manifest.permission.MANAGE_DEVICE_ADMINS, null); 3921 } 3922 long ident = mInjector.binderClearCallingIdentity(); 3923 try { 3924 removeActiveAdminLocked(adminReceiver, userHandle); 3925 } finally { 3926 mInjector.binderRestoreCallingIdentity(ident); 3927 } 3928 } 3929 } 3930 3931 @Override 3932 public boolean isSeparateProfileChallengeAllowed(int userHandle) { 3933 ComponentName profileOwner = getProfileOwner(userHandle); 3934 // Profile challenge is supported on N or newer release. 3935 return profileOwner != null && 3936 getTargetSdk(profileOwner.getPackageName(), userHandle) > Build.VERSION_CODES.M; 3937 } 3938 3939 @Override 3940 public void setPasswordQuality(ComponentName who, int quality, boolean parent) { 3941 if (!mHasFeature) { 3942 return; 3943 } 3944 Preconditions.checkNotNull(who, "ComponentName is null"); 3945 validateQualityConstant(quality); 3946 3947 final int userId = mInjector.userHandleGetCallingUserId(); 3948 synchronized (getLockObject()) { 3949 ActiveAdmin ap = getActiveAdminForCallerLocked( 3950 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 3951 final PasswordMetrics metrics = ap.minimumPasswordMetrics; 3952 if (metrics.quality != quality) { 3953 metrics.quality = quality; 3954 updatePasswordValidityCheckpointLocked(userId, parent); 3955 saveSettingsLocked(userId); 3956 } 3957 maybeLogPasswordComplexitySet(who, userId, parent, metrics); 3958 } 3959 } 3960 3961 /** 3962 * Updates a flag that tells us whether the user's password currently satisfies the 3963 * requirements set by all of the user's active admins. The flag is updated both in memory 3964 * and persisted to disk by calling {@link #saveSettingsLocked}, for the value of the flag 3965 * be the correct one upon boot. 3966 * This should be called whenever the password or the admin policies have changed. 3967 */ 3968 private void updatePasswordValidityCheckpointLocked(int userHandle, boolean parent) { 3969 final int credentialOwner = getCredentialOwner(userHandle, parent); 3970 DevicePolicyData policy = getUserData(credentialOwner); 3971 PasswordMetrics metrics = getUserPasswordMetricsLocked(credentialOwner); 3972 if (metrics == null) { 3973 metrics = new PasswordMetrics(); 3974 } 3975 policy.mPasswordValidAtLastCheckpoint = 3976 isPasswordSufficientForUserWithoutCheckpointLocked( 3977 metrics, userHandle, parent); 3978 3979 saveSettingsLocked(credentialOwner); 3980 } 3981 3982 @Override 3983 public int getPasswordQuality(ComponentName who, int userHandle, boolean parent) { 3984 if (!mHasFeature) { 3985 return PASSWORD_QUALITY_UNSPECIFIED; 3986 } 3987 enforceFullCrossUsersPermission(userHandle); 3988 synchronized (getLockObject()) { 3989 int mode = PASSWORD_QUALITY_UNSPECIFIED; 3990 3991 if (who != null) { 3992 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 3993 return admin != null ? admin.minimumPasswordMetrics.quality : mode; 3994 } 3995 3996 // Return the strictest policy across all participating admins. 3997 List<ActiveAdmin> admins = 3998 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 3999 final int N = admins.size(); 4000 for (int i = 0; i < N; i++) { 4001 ActiveAdmin admin = admins.get(i); 4002 if (mode < admin.minimumPasswordMetrics.quality) { 4003 mode = admin.minimumPasswordMetrics.quality; 4004 } 4005 } 4006 return mode; 4007 } 4008 } 4009 4010 private List<ActiveAdmin> getActiveAdminsForLockscreenPoliciesLocked( 4011 int userHandle, boolean parent) { 4012 if (!parent && isSeparateProfileChallengeEnabled(userHandle)) { 4013 // If this user has a separate challenge, only return its restrictions. 4014 return getUserDataUnchecked(userHandle).mAdminList; 4015 } else { 4016 // Return all admins for this user and the profiles that are visible from this 4017 // user that do not use a separate work challenge. 4018 ArrayList<ActiveAdmin> admins = new ArrayList<ActiveAdmin>(); 4019 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4020 DevicePolicyData policy = getUserData(userInfo.id); 4021 if (!userInfo.isManagedProfile()) { 4022 admins.addAll(policy.mAdminList); 4023 } else { 4024 // For managed profiles, we always include the policies set on the parent 4025 // profile. Additionally, we include the ones set on the managed profile 4026 // if no separate challenge is in place. 4027 boolean hasSeparateChallenge = isSeparateProfileChallengeEnabled(userInfo.id); 4028 final int N = policy.mAdminList.size(); 4029 for (int i = 0; i < N; i++) { 4030 ActiveAdmin admin = policy.mAdminList.get(i); 4031 if (admin.hasParentActiveAdmin()) { 4032 admins.add(admin.getParentActiveAdmin()); 4033 } 4034 if (!hasSeparateChallenge) { 4035 admins.add(admin); 4036 } 4037 } 4038 } 4039 } 4040 return admins; 4041 } 4042 } 4043 4044 private boolean isSeparateProfileChallengeEnabled(int userHandle) { 4045 long ident = mInjector.binderClearCallingIdentity(); 4046 try { 4047 return mLockPatternUtils.isSeparateProfileChallengeEnabled(userHandle); 4048 } finally { 4049 mInjector.binderRestoreCallingIdentity(ident); 4050 } 4051 } 4052 4053 @Override 4054 public void setPasswordMinimumLength(ComponentName who, int length, boolean parent) { 4055 if (!mHasFeature) { 4056 return; 4057 } 4058 Preconditions.checkNotNull(who, "ComponentName is null"); 4059 final int userId = mInjector.userHandleGetCallingUserId(); 4060 synchronized (getLockObject()) { 4061 ActiveAdmin ap = getActiveAdminForCallerLocked( 4062 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4063 final PasswordMetrics metrics = ap.minimumPasswordMetrics; 4064 if (metrics.length != length) { 4065 metrics.length = length; 4066 updatePasswordValidityCheckpointLocked(userId, parent); 4067 saveSettingsLocked(userId); 4068 } 4069 maybeLogPasswordComplexitySet(who, userId, parent, metrics); 4070 } 4071 } 4072 4073 @Override 4074 public int getPasswordMinimumLength(ComponentName who, int userHandle, boolean parent) { 4075 return getStrictestPasswordRequirement(who, userHandle, parent, 4076 admin -> admin.minimumPasswordMetrics.length, PASSWORD_QUALITY_UNSPECIFIED); 4077 } 4078 4079 @Override 4080 public void setPasswordHistoryLength(ComponentName who, int length, boolean parent) { 4081 if (!mHasFeature) { 4082 return; 4083 } 4084 Preconditions.checkNotNull(who, "ComponentName is null"); 4085 final int userId = mInjector.userHandleGetCallingUserId(); 4086 synchronized (getLockObject()) { 4087 ActiveAdmin ap = getActiveAdminForCallerLocked( 4088 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4089 if (ap.passwordHistoryLength != length) { 4090 ap.passwordHistoryLength = length; 4091 updatePasswordValidityCheckpointLocked(userId, parent); 4092 saveSettingsLocked(userId); 4093 } 4094 } 4095 if (SecurityLog.isLoggingEnabled()) { 4096 final int affectedUserId = parent ? getProfileParentId(userId) : userId; 4097 SecurityLog.writeEvent(SecurityLog.TAG_PASSWORD_HISTORY_LENGTH_SET, 4098 who.getPackageName(), userId, affectedUserId, length); 4099 } 4100 } 4101 4102 @Override 4103 public int getPasswordHistoryLength(ComponentName who, int userHandle, boolean parent) { 4104 return getStrictestPasswordRequirement(who, userHandle, parent, 4105 admin -> admin.passwordHistoryLength, PASSWORD_QUALITY_UNSPECIFIED); 4106 } 4107 4108 @Override 4109 public void setPasswordExpirationTimeout(ComponentName who, long timeout, boolean parent) { 4110 if (!mHasFeature) { 4111 return; 4112 } 4113 Preconditions.checkNotNull(who, "ComponentName is null"); 4114 Preconditions.checkArgumentNonnegative(timeout, "Timeout must be >= 0 ms"); 4115 final int userHandle = mInjector.userHandleGetCallingUserId(); 4116 synchronized (getLockObject()) { 4117 ActiveAdmin ap = getActiveAdminForCallerLocked( 4118 who, DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD, parent); 4119 // Calling this API automatically bumps the expiration date 4120 final long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 4121 ap.passwordExpirationDate = expiration; 4122 ap.passwordExpirationTimeout = timeout; 4123 if (timeout > 0L) { 4124 Slog.w(LOG_TAG, "setPasswordExpiration(): password will expire on " 4125 + DateFormat.getDateTimeInstance(DateFormat.DEFAULT, DateFormat.DEFAULT) 4126 .format(new Date(expiration))); 4127 } 4128 saveSettingsLocked(userHandle); 4129 4130 // in case this is the first one, set the alarm on the appropriate user. 4131 setExpirationAlarmCheckLocked(mContext, userHandle, parent); 4132 } 4133 if (SecurityLog.isLoggingEnabled()) { 4134 final int affectedUserId = parent ? getProfileParentId(userHandle) : userHandle; 4135 SecurityLog.writeEvent(SecurityLog.TAG_PASSWORD_EXPIRATION_SET, who.getPackageName(), 4136 userHandle, affectedUserId, timeout); 4137 } 4138 } 4139 4140 /** 4141 * Return a single admin's expiration cycle time, or the min of all cycle times. 4142 * Returns 0 if not configured. 4143 */ 4144 @Override 4145 public long getPasswordExpirationTimeout(ComponentName who, int userHandle, boolean parent) { 4146 if (!mHasFeature) { 4147 return 0L; 4148 } 4149 enforceFullCrossUsersPermission(userHandle); 4150 synchronized (getLockObject()) { 4151 long timeout = 0L; 4152 4153 if (who != null) { 4154 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4155 return admin != null ? admin.passwordExpirationTimeout : timeout; 4156 } 4157 4158 // Return the strictest policy across all participating admins. 4159 List<ActiveAdmin> admins = 4160 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4161 final int N = admins.size(); 4162 for (int i = 0; i < N; i++) { 4163 ActiveAdmin admin = admins.get(i); 4164 if (timeout == 0L || (admin.passwordExpirationTimeout != 0L 4165 && timeout > admin.passwordExpirationTimeout)) { 4166 timeout = admin.passwordExpirationTimeout; 4167 } 4168 } 4169 return timeout; 4170 } 4171 } 4172 4173 @Override 4174 public boolean addCrossProfileWidgetProvider(ComponentName admin, String packageName) { 4175 final int userId = UserHandle.getCallingUserId(); 4176 List<String> changedProviders = null; 4177 4178 synchronized (getLockObject()) { 4179 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 4180 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4181 if (activeAdmin.crossProfileWidgetProviders == null) { 4182 activeAdmin.crossProfileWidgetProviders = new ArrayList<>(); 4183 } 4184 List<String> providers = activeAdmin.crossProfileWidgetProviders; 4185 if (!providers.contains(packageName)) { 4186 providers.add(packageName); 4187 changedProviders = new ArrayList<>(providers); 4188 saveSettingsLocked(userId); 4189 } 4190 } 4191 4192 if (changedProviders != null) { 4193 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 4194 return true; 4195 } 4196 4197 return false; 4198 } 4199 4200 @Override 4201 public boolean removeCrossProfileWidgetProvider(ComponentName admin, String packageName) { 4202 final int userId = UserHandle.getCallingUserId(); 4203 List<String> changedProviders = null; 4204 4205 synchronized (getLockObject()) { 4206 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 4207 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4208 if (activeAdmin.crossProfileWidgetProviders == null 4209 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 4210 return false; 4211 } 4212 List<String> providers = activeAdmin.crossProfileWidgetProviders; 4213 if (providers.remove(packageName)) { 4214 changedProviders = new ArrayList<>(providers); 4215 saveSettingsLocked(userId); 4216 } 4217 } 4218 4219 if (changedProviders != null) { 4220 mLocalService.notifyCrossProfileProvidersChanged(userId, changedProviders); 4221 return true; 4222 } 4223 4224 return false; 4225 } 4226 4227 @Override 4228 public List<String> getCrossProfileWidgetProviders(ComponentName admin) { 4229 synchronized (getLockObject()) { 4230 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(admin, 4231 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 4232 if (activeAdmin.crossProfileWidgetProviders == null 4233 || activeAdmin.crossProfileWidgetProviders.isEmpty()) { 4234 return null; 4235 } 4236 if (mInjector.binderIsCallingUidMyUid()) { 4237 return new ArrayList<>(activeAdmin.crossProfileWidgetProviders); 4238 } else { 4239 return activeAdmin.crossProfileWidgetProviders; 4240 } 4241 } 4242 } 4243 4244 /** 4245 * Return a single admin's expiration date/time, or the min (soonest) for all admins. 4246 * Returns 0 if not configured. 4247 */ 4248 private long getPasswordExpirationLocked(ComponentName who, int userHandle, boolean parent) { 4249 long timeout = 0L; 4250 4251 if (who != null) { 4252 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4253 return admin != null ? admin.passwordExpirationDate : timeout; 4254 } 4255 4256 // Return the strictest policy across all participating admins. 4257 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4258 final int N = admins.size(); 4259 for (int i = 0; i < N; i++) { 4260 ActiveAdmin admin = admins.get(i); 4261 if (timeout == 0L || (admin.passwordExpirationDate != 0 4262 && timeout > admin.passwordExpirationDate)) { 4263 timeout = admin.passwordExpirationDate; 4264 } 4265 } 4266 return timeout; 4267 } 4268 4269 @Override 4270 public long getPasswordExpiration(ComponentName who, int userHandle, boolean parent) { 4271 if (!mHasFeature) { 4272 return 0L; 4273 } 4274 enforceFullCrossUsersPermission(userHandle); 4275 synchronized (getLockObject()) { 4276 return getPasswordExpirationLocked(who, userHandle, parent); 4277 } 4278 } 4279 4280 @Override 4281 public void setPasswordMinimumUpperCase(ComponentName who, int length, boolean parent) { 4282 if (!mHasFeature) { 4283 return; 4284 } 4285 Preconditions.checkNotNull(who, "ComponentName is null"); 4286 final int userId = mInjector.userHandleGetCallingUserId(); 4287 synchronized (getLockObject()) { 4288 final ActiveAdmin ap = getActiveAdminForCallerLocked( 4289 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4290 final PasswordMetrics metrics = ap.minimumPasswordMetrics; 4291 if (metrics.upperCase != length) { 4292 metrics.upperCase = length; 4293 updatePasswordValidityCheckpointLocked(userId, parent); 4294 saveSettingsLocked(userId); 4295 } 4296 maybeLogPasswordComplexitySet(who, userId, parent, metrics); 4297 } 4298 } 4299 4300 @Override 4301 public int getPasswordMinimumUpperCase(ComponentName who, int userHandle, boolean parent) { 4302 return getStrictestPasswordRequirement(who, userHandle, parent, 4303 admin -> admin.minimumPasswordMetrics.upperCase, PASSWORD_QUALITY_COMPLEX); 4304 } 4305 4306 @Override 4307 public void setPasswordMinimumLowerCase(ComponentName who, int length, boolean parent) { 4308 Preconditions.checkNotNull(who, "ComponentName is null"); 4309 final int userId = mInjector.userHandleGetCallingUserId(); 4310 synchronized (getLockObject()) { 4311 ActiveAdmin ap = getActiveAdminForCallerLocked( 4312 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4313 final PasswordMetrics metrics = ap.minimumPasswordMetrics; 4314 if (metrics.lowerCase != length) { 4315 metrics.lowerCase = length; 4316 updatePasswordValidityCheckpointLocked(userId, parent); 4317 saveSettingsLocked(userId); 4318 } 4319 maybeLogPasswordComplexitySet(who, userId, parent, metrics); 4320 } 4321 } 4322 4323 @Override 4324 public int getPasswordMinimumLowerCase(ComponentName who, int userHandle, boolean parent) { 4325 return getStrictestPasswordRequirement(who, userHandle, parent, 4326 admin -> admin.minimumPasswordMetrics.lowerCase, PASSWORD_QUALITY_COMPLEX); 4327 } 4328 4329 @Override 4330 public void setPasswordMinimumLetters(ComponentName who, int length, boolean parent) { 4331 if (!mHasFeature) { 4332 return; 4333 } 4334 Preconditions.checkNotNull(who, "ComponentName is null"); 4335 final int userId = mInjector.userHandleGetCallingUserId(); 4336 synchronized (getLockObject()) { 4337 ActiveAdmin ap = getActiveAdminForCallerLocked( 4338 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4339 final PasswordMetrics metrics = ap.minimumPasswordMetrics; 4340 if (metrics.letters != length) { 4341 metrics.letters = length; 4342 updatePasswordValidityCheckpointLocked(userId, parent); 4343 saveSettingsLocked(userId); 4344 } 4345 maybeLogPasswordComplexitySet(who, userId, parent, metrics); 4346 } 4347 } 4348 4349 @Override 4350 public int getPasswordMinimumLetters(ComponentName who, int userHandle, boolean parent) { 4351 return getStrictestPasswordRequirement(who, userHandle, parent, 4352 admin -> admin.minimumPasswordMetrics.letters, PASSWORD_QUALITY_COMPLEX); 4353 } 4354 4355 @Override 4356 public void setPasswordMinimumNumeric(ComponentName who, int length, boolean parent) { 4357 if (!mHasFeature) { 4358 return; 4359 } 4360 Preconditions.checkNotNull(who, "ComponentName is null"); 4361 final int userId = mInjector.userHandleGetCallingUserId(); 4362 synchronized (getLockObject()) { 4363 ActiveAdmin ap = getActiveAdminForCallerLocked( 4364 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4365 final PasswordMetrics metrics = ap.minimumPasswordMetrics; 4366 if (metrics.numeric != length) { 4367 metrics.numeric = length; 4368 updatePasswordValidityCheckpointLocked(userId, parent); 4369 saveSettingsLocked(userId); 4370 } 4371 maybeLogPasswordComplexitySet(who, userId, parent, metrics); 4372 } 4373 } 4374 4375 @Override 4376 public int getPasswordMinimumNumeric(ComponentName who, int userHandle, boolean parent) { 4377 return getStrictestPasswordRequirement(who, userHandle, parent, 4378 admin -> admin.minimumPasswordMetrics.numeric, PASSWORD_QUALITY_COMPLEX); 4379 } 4380 4381 @Override 4382 public void setPasswordMinimumSymbols(ComponentName who, int length, boolean parent) { 4383 if (!mHasFeature) { 4384 return; 4385 } 4386 Preconditions.checkNotNull(who, "ComponentName is null"); 4387 final int userId = mInjector.userHandleGetCallingUserId(); 4388 synchronized (getLockObject()) { 4389 ActiveAdmin ap = getActiveAdminForCallerLocked( 4390 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4391 final PasswordMetrics metrics = ap.minimumPasswordMetrics; 4392 if (metrics.symbols != length) { 4393 ap.minimumPasswordMetrics.symbols = length; 4394 updatePasswordValidityCheckpointLocked(userId, parent); 4395 saveSettingsLocked(userId); 4396 } 4397 maybeLogPasswordComplexitySet(who, userId, parent, metrics); 4398 } 4399 } 4400 4401 @Override 4402 public int getPasswordMinimumSymbols(ComponentName who, int userHandle, boolean parent) { 4403 return getStrictestPasswordRequirement(who, userHandle, parent, 4404 admin -> admin.minimumPasswordMetrics.symbols, PASSWORD_QUALITY_COMPLEX); 4405 } 4406 4407 @Override 4408 public void setPasswordMinimumNonLetter(ComponentName who, int length, boolean parent) { 4409 if (!mHasFeature) { 4410 return; 4411 } 4412 Preconditions.checkNotNull(who, "ComponentName is null"); 4413 final int userId = mInjector.userHandleGetCallingUserId(); 4414 synchronized (getLockObject()) { 4415 ActiveAdmin ap = getActiveAdminForCallerLocked( 4416 who, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4417 final PasswordMetrics metrics = ap.minimumPasswordMetrics; 4418 if (metrics.nonLetter != length) { 4419 ap.minimumPasswordMetrics.nonLetter = length; 4420 updatePasswordValidityCheckpointLocked(userId, parent); 4421 saveSettingsLocked(userId); 4422 } 4423 maybeLogPasswordComplexitySet(who, userId, parent, metrics); 4424 } 4425 } 4426 4427 @Override 4428 public int getPasswordMinimumNonLetter(ComponentName who, int userHandle, boolean parent) { 4429 return getStrictestPasswordRequirement(who, userHandle, parent, 4430 admin -> admin.minimumPasswordMetrics.nonLetter, PASSWORD_QUALITY_COMPLEX); 4431 } 4432 4433 /** 4434 * Calculates strictest (maximum) value for a given password property enforced by admin[s]. 4435 */ 4436 private int getStrictestPasswordRequirement(ComponentName who, int userHandle, 4437 boolean parent, Function<ActiveAdmin, Integer> getter, int minimumPasswordQuality) { 4438 if (!mHasFeature) { 4439 return 0; 4440 } 4441 enforceFullCrossUsersPermission(userHandle); 4442 synchronized (getLockObject()) { 4443 if (who != null) { 4444 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 4445 return admin != null ? getter.apply(admin) : 0; 4446 } 4447 4448 int maxValue = 0; 4449 final List<ActiveAdmin> admins = 4450 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4451 final int N = admins.size(); 4452 for (int i = 0; i < N; i++) { 4453 final ActiveAdmin admin = admins.get(i); 4454 if (!isLimitPasswordAllowed(admin, minimumPasswordQuality)) { 4455 continue; 4456 } 4457 final Integer adminValue = getter.apply(admin); 4458 if (adminValue > maxValue) { 4459 maxValue = adminValue; 4460 } 4461 } 4462 return maxValue; 4463 } 4464 } 4465 4466 @Override 4467 public boolean isActivePasswordSufficient(int userHandle, boolean parent) { 4468 if (!mHasFeature) { 4469 return true; 4470 } 4471 enforceFullCrossUsersPermission(userHandle); 4472 enforceUserUnlocked(userHandle, parent); 4473 4474 synchronized (getLockObject()) { 4475 // This API can only be called by an active device admin, 4476 // so try to retrieve it to check that the caller is one. 4477 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, parent); 4478 int credentialOwner = getCredentialOwner(userHandle, parent); 4479 DevicePolicyData policy = getUserDataUnchecked(credentialOwner); 4480 PasswordMetrics metrics = getUserPasswordMetricsLocked(credentialOwner); 4481 return isActivePasswordSufficientForUserLocked( 4482 policy.mPasswordValidAtLastCheckpoint, metrics, userHandle, parent); 4483 } 4484 } 4485 4486 @Override 4487 public boolean isUsingUnifiedPassword(ComponentName admin) { 4488 if (!mHasFeature) { 4489 return true; 4490 } 4491 final int userId = mInjector.userHandleGetCallingUserId(); 4492 enforceProfileOrDeviceOwner(admin); 4493 enforceManagedProfile(userId, "query unified challenge status"); 4494 return !isSeparateProfileChallengeEnabled(userId); 4495 } 4496 4497 @Override 4498 public boolean isProfileActivePasswordSufficientForParent(int userHandle) { 4499 if (!mHasFeature) { 4500 return true; 4501 } 4502 enforceFullCrossUsersPermission(userHandle); 4503 enforceManagedProfile(userHandle, "call APIs refering to the parent profile"); 4504 4505 synchronized (getLockObject()) { 4506 final int targetUser = getProfileParentId(userHandle); 4507 enforceUserUnlocked(targetUser, false); 4508 int credentialOwner = getCredentialOwner(userHandle, false); 4509 DevicePolicyData policy = getUserDataUnchecked(credentialOwner); 4510 PasswordMetrics metrics = getUserPasswordMetricsLocked(credentialOwner); 4511 return isActivePasswordSufficientForUserLocked( 4512 policy.mPasswordValidAtLastCheckpoint, metrics, targetUser, false); 4513 } 4514 } 4515 4516 private boolean isActivePasswordSufficientForUserLocked( 4517 boolean passwordValidAtLastCheckpoint, PasswordMetrics metrics, int userHandle, 4518 boolean parent) { 4519 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled() && (metrics == null)) { 4520 // Before user enters their password for the first time after a reboot, return the 4521 // value of this flag, which tells us whether the password was valid the last time 4522 // settings were saved. If DPC changes password requirements on boot so that the 4523 // current password no longer meets the requirements, this value will be stale until 4524 // the next time the password is entered. 4525 return passwordValidAtLastCheckpoint; 4526 } 4527 4528 if (metrics == null) { 4529 // This could happen if the user never had a password set, for example, so 4530 // setActivePasswordState has never been called for it. 4531 metrics = new PasswordMetrics(); 4532 } 4533 return isPasswordSufficientForUserWithoutCheckpointLocked(metrics, userHandle, parent); 4534 } 4535 4536 /** 4537 * Returns {@code true} if the password represented by the {@code passwordMetrics} argument 4538 * sufficiently fulfills the password requirements for the user corresponding to 4539 * {@code userHandle} (or its parent, if {@code parent} is set to {@code true}). 4540 */ 4541 private boolean isPasswordSufficientForUserWithoutCheckpointLocked( 4542 PasswordMetrics passwordMetrics, int userHandle, boolean parent) { 4543 final int requiredPasswordQuality = getPasswordQuality(null, userHandle, parent); 4544 4545 if (passwordMetrics.quality < requiredPasswordQuality) { 4546 return false; 4547 } 4548 if (requiredPasswordQuality >= DevicePolicyManager.PASSWORD_QUALITY_NUMERIC 4549 && passwordMetrics.length < getPasswordMinimumLength( 4550 null, userHandle, parent)) { 4551 return false; 4552 } 4553 if (requiredPasswordQuality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4554 return true; 4555 } 4556 return passwordMetrics.upperCase >= getPasswordMinimumUpperCase( 4557 null, userHandle, parent) 4558 && passwordMetrics.lowerCase >= getPasswordMinimumLowerCase( 4559 null, userHandle, parent) 4560 && passwordMetrics.letters >= getPasswordMinimumLetters( 4561 null, userHandle, parent) 4562 && passwordMetrics.numeric >= getPasswordMinimumNumeric( 4563 null, userHandle, parent) 4564 && passwordMetrics.symbols >= getPasswordMinimumSymbols( 4565 null, userHandle, parent) 4566 && passwordMetrics.nonLetter >= getPasswordMinimumNonLetter( 4567 null, userHandle, parent); 4568 } 4569 4570 @Override 4571 public int getCurrentFailedPasswordAttempts(int userHandle, boolean parent) { 4572 enforceFullCrossUsersPermission(userHandle); 4573 synchronized (getLockObject()) { 4574 if (!isCallerWithSystemUid()) { 4575 // This API can only be called by an active device admin, 4576 // so try to retrieve it to check that the caller is one. 4577 getActiveAdminForCallerLocked( 4578 null, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4579 } 4580 4581 DevicePolicyData policy = getUserDataUnchecked(getCredentialOwner(userHandle, parent)); 4582 4583 return policy.mFailedPasswordAttempts; 4584 } 4585 } 4586 4587 @Override 4588 public void setMaximumFailedPasswordsForWipe(ComponentName who, int num, boolean parent) { 4589 if (!mHasFeature) { 4590 return; 4591 } 4592 Preconditions.checkNotNull(who, "ComponentName is null"); 4593 final int userId = mInjector.userHandleGetCallingUserId(); 4594 synchronized (getLockObject()) { 4595 // This API can only be called by an active device admin, 4596 // so try to retrieve it to check that the caller is one. 4597 getActiveAdminForCallerLocked( 4598 who, DeviceAdminInfo.USES_POLICY_WIPE_DATA, parent); 4599 ActiveAdmin ap = getActiveAdminForCallerLocked( 4600 who, DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, parent); 4601 if (ap.maximumFailedPasswordsForWipe != num) { 4602 ap.maximumFailedPasswordsForWipe = num; 4603 saveSettingsLocked(userId); 4604 } 4605 } 4606 if (SecurityLog.isLoggingEnabled()) { 4607 final int affectedUserId = parent ? getProfileParentId(userId) : userId; 4608 SecurityLog.writeEvent(SecurityLog.TAG_MAX_PASSWORD_ATTEMPTS_SET, who.getPackageName(), 4609 userId, affectedUserId, num); 4610 } 4611 } 4612 4613 @Override 4614 public int getMaximumFailedPasswordsForWipe(ComponentName who, int userHandle, boolean parent) { 4615 if (!mHasFeature) { 4616 return 0; 4617 } 4618 enforceFullCrossUsersPermission(userHandle); 4619 synchronized (getLockObject()) { 4620 ActiveAdmin admin = (who != null) 4621 ? getActiveAdminUncheckedLocked(who, userHandle, parent) 4622 : getAdminWithMinimumFailedPasswordsForWipeLocked(userHandle, parent); 4623 return admin != null ? admin.maximumFailedPasswordsForWipe : 0; 4624 } 4625 } 4626 4627 @Override 4628 public int getProfileWithMinimumFailedPasswordsForWipe(int userHandle, boolean parent) { 4629 if (!mHasFeature) { 4630 return UserHandle.USER_NULL; 4631 } 4632 enforceFullCrossUsersPermission(userHandle); 4633 synchronized (getLockObject()) { 4634 ActiveAdmin admin = getAdminWithMinimumFailedPasswordsForWipeLocked( 4635 userHandle, parent); 4636 return admin != null ? admin.getUserHandle().getIdentifier() : UserHandle.USER_NULL; 4637 } 4638 } 4639 4640 /** 4641 * Returns the admin with the strictest policy on maximum failed passwords for: 4642 * <ul> 4643 * <li>this user if it has a separate profile challenge, or 4644 * <li>this user and all profiles that don't have their own challenge otherwise. 4645 * </ul> 4646 * <p>If the policy for the primary and any other profile are equal, it returns the admin for 4647 * the primary profile. 4648 * Returns {@code null} if no participating admin has that policy set. 4649 */ 4650 private ActiveAdmin getAdminWithMinimumFailedPasswordsForWipeLocked( 4651 int userHandle, boolean parent) { 4652 int count = 0; 4653 ActiveAdmin strictestAdmin = null; 4654 4655 // Return the strictest policy across all participating admins. 4656 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 4657 final int N = admins.size(); 4658 for (int i = 0; i < N; i++) { 4659 ActiveAdmin admin = admins.get(i); 4660 if (admin.maximumFailedPasswordsForWipe == 4661 ActiveAdmin.DEF_MAXIMUM_FAILED_PASSWORDS_FOR_WIPE) { 4662 continue; // No max number of failed passwords policy set for this profile. 4663 } 4664 4665 // We always favor the primary profile if several profiles have the same value set. 4666 int userId = admin.getUserHandle().getIdentifier(); 4667 if (count == 0 || 4668 count > admin.maximumFailedPasswordsForWipe || 4669 (count == admin.maximumFailedPasswordsForWipe && 4670 getUserInfo(userId).isPrimary())) { 4671 count = admin.maximumFailedPasswordsForWipe; 4672 strictestAdmin = admin; 4673 } 4674 } 4675 return strictestAdmin; 4676 } 4677 4678 private UserInfo getUserInfo(@UserIdInt int userId) { 4679 final long token = mInjector.binderClearCallingIdentity(); 4680 try { 4681 return mUserManager.getUserInfo(userId); 4682 } finally { 4683 mInjector.binderRestoreCallingIdentity(token); 4684 } 4685 } 4686 4687 private boolean canPOorDOCallResetPassword(ActiveAdmin admin, @UserIdInt int userId) { 4688 // Only if the admins targets a pre-O SDK 4689 return getTargetSdk(admin.info.getPackageName(), userId) < Build.VERSION_CODES.O; 4690 } 4691 4692 /* PO or DO could do an untrusted reset in certain conditions. */ 4693 private boolean canUserHaveUntrustedCredentialReset(@UserIdInt int userId) { 4694 synchronized (getLockObject()) { 4695 // An active DO or PO might be able to fo an untrusted credential reset 4696 for (final ActiveAdmin admin : getUserData(userId).mAdminList) { 4697 if (!isActiveAdminWithPolicyForUserLocked(admin, 4698 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, userId)) { 4699 continue; 4700 } 4701 if (canPOorDOCallResetPassword(admin, userId)) { 4702 return true; 4703 } 4704 } 4705 return false; 4706 } 4707 } 4708 @Override 4709 public boolean resetPassword(String passwordOrNull, int flags) throws RemoteException { 4710 final int callingUid = mInjector.binderGetCallingUid(); 4711 final int userHandle = mInjector.userHandleGetCallingUserId(); 4712 4713 String password = passwordOrNull != null ? passwordOrNull : ""; 4714 4715 // Password resetting to empty/null is not allowed for managed profiles. 4716 if (TextUtils.isEmpty(password)) { 4717 enforceNotManagedProfile(userHandle, "clear the active password"); 4718 } 4719 4720 synchronized (getLockObject()) { 4721 // If caller has PO (or DO) it can change the password, so see if that's the case first. 4722 ActiveAdmin admin = getActiveAdminWithPolicyForUidLocked( 4723 null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, callingUid); 4724 final boolean preN; 4725 if (admin != null) { 4726 if (!canPOorDOCallResetPassword(admin, userHandle)) { 4727 throw new SecurityException("resetPassword() is deprecated for DPC targeting O" 4728 + " or later"); 4729 } 4730 preN = getTargetSdk(admin.info.getPackageName(), 4731 userHandle) <= android.os.Build.VERSION_CODES.M; 4732 } else { 4733 // Otherwise, make sure the caller has any active admin with the right policy. 4734 admin = getActiveAdminForCallerLocked(null, 4735 DeviceAdminInfo.USES_POLICY_RESET_PASSWORD); 4736 preN = getTargetSdk(admin.info.getPackageName(), 4737 userHandle) <= android.os.Build.VERSION_CODES.M; 4738 4739 // As of N, password resetting to empty/null is not allowed anymore. 4740 // TODO Should we allow DO/PO to set an empty password? 4741 if (TextUtils.isEmpty(password)) { 4742 if (!preN) { 4743 throw new SecurityException("Cannot call with null password"); 4744 } else { 4745 Slog.e(LOG_TAG, "Cannot call with null password"); 4746 return false; 4747 } 4748 } 4749 // As of N, password cannot be changed by the admin if it is already set. 4750 if (isLockScreenSecureUnchecked(userHandle)) { 4751 if (!preN) { 4752 throw new SecurityException("Admin cannot change current password"); 4753 } else { 4754 Slog.e(LOG_TAG, "Admin cannot change current password"); 4755 return false; 4756 } 4757 } 4758 } 4759 // Do not allow to reset password when current user has a managed profile 4760 if (!isManagedProfile(userHandle)) { 4761 for (UserInfo userInfo : mUserManager.getProfiles(userHandle)) { 4762 if (userInfo.isManagedProfile()) { 4763 if (!preN) { 4764 throw new IllegalStateException( 4765 "Cannot reset password on user has managed profile"); 4766 } else { 4767 Slog.e(LOG_TAG, "Cannot reset password on user has managed profile"); 4768 return false; 4769 } 4770 } 4771 } 4772 } 4773 // Do not allow to reset password when user is locked 4774 if (!mUserManager.isUserUnlocked(userHandle)) { 4775 if (!preN) { 4776 throw new IllegalStateException("Cannot reset password when user is locked"); 4777 } else { 4778 Slog.e(LOG_TAG, "Cannot reset password when user is locked"); 4779 return false; 4780 } 4781 } 4782 } 4783 4784 return resetPasswordInternal(password, 0, null, flags, callingUid, userHandle); 4785 } 4786 4787 private boolean resetPasswordInternal(String password, long tokenHandle, byte[] token, 4788 int flags, int callingUid, int userHandle) { 4789 int quality; 4790 synchronized (getLockObject()) { 4791 quality = getPasswordQuality(null, userHandle, /* parent */ false); 4792 if (quality == DevicePolicyManager.PASSWORD_QUALITY_MANAGED) { 4793 quality = PASSWORD_QUALITY_UNSPECIFIED; 4794 } 4795 final PasswordMetrics metrics = PasswordMetrics.computeForPassword(password); 4796 if (quality != PASSWORD_QUALITY_UNSPECIFIED) { 4797 final int realQuality = metrics.quality; 4798 if (realQuality < quality 4799 && quality != DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4800 Slog.w(LOG_TAG, "resetPassword: password quality 0x" 4801 + Integer.toHexString(realQuality) 4802 + " does not meet required quality 0x" 4803 + Integer.toHexString(quality)); 4804 return false; 4805 } 4806 quality = Math.max(realQuality, quality); 4807 } 4808 int length = getPasswordMinimumLength(null, userHandle, /* parent */ false); 4809 if (password.length() < length) { 4810 Slog.w(LOG_TAG, "resetPassword: password length " + password.length() 4811 + " does not meet required length " + length); 4812 return false; 4813 } 4814 if (quality == DevicePolicyManager.PASSWORD_QUALITY_COMPLEX) { 4815 int neededLetters = getPasswordMinimumLetters(null, userHandle, /* parent */ false); 4816 if(metrics.letters < neededLetters) { 4817 Slog.w(LOG_TAG, "resetPassword: number of letters " + metrics.letters 4818 + " does not meet required number of letters " + neededLetters); 4819 return false; 4820 } 4821 int neededNumeric = getPasswordMinimumNumeric(null, userHandle, /* parent */ false); 4822 if (metrics.numeric < neededNumeric) { 4823 Slog.w(LOG_TAG, "resetPassword: number of numerical digits " + metrics.numeric 4824 + " does not meet required number of numerical digits " 4825 + neededNumeric); 4826 return false; 4827 } 4828 int neededLowerCase = getPasswordMinimumLowerCase( 4829 null, userHandle, /* parent */ false); 4830 if (metrics.lowerCase < neededLowerCase) { 4831 Slog.w(LOG_TAG, "resetPassword: number of lowercase letters " 4832 + metrics.lowerCase 4833 + " does not meet required number of lowercase letters " 4834 + neededLowerCase); 4835 return false; 4836 } 4837 int neededUpperCase = getPasswordMinimumUpperCase( 4838 null, userHandle, /* parent */ false); 4839 if (metrics.upperCase < neededUpperCase) { 4840 Slog.w(LOG_TAG, "resetPassword: number of uppercase letters " 4841 + metrics.upperCase 4842 + " does not meet required number of uppercase letters " 4843 + neededUpperCase); 4844 return false; 4845 } 4846 int neededSymbols = getPasswordMinimumSymbols(null, userHandle, /* parent */ false); 4847 if (metrics.symbols < neededSymbols) { 4848 Slog.w(LOG_TAG, "resetPassword: number of special symbols " + metrics.symbols 4849 + " does not meet required number of special symbols " + neededSymbols); 4850 return false; 4851 } 4852 int neededNonLetter = getPasswordMinimumNonLetter( 4853 null, userHandle, /* parent */ false); 4854 if (metrics.nonLetter < neededNonLetter) { 4855 Slog.w(LOG_TAG, "resetPassword: number of non-letter characters " 4856 + metrics.nonLetter 4857 + " does not meet required number of non-letter characters " 4858 + neededNonLetter); 4859 return false; 4860 } 4861 } 4862 } 4863 4864 DevicePolicyData policy = getUserData(userHandle); 4865 if (policy.mPasswordOwner >= 0 && policy.mPasswordOwner != callingUid) { 4866 Slog.w(LOG_TAG, "resetPassword: already set by another uid and not entered by user"); 4867 return false; 4868 } 4869 4870 boolean callerIsDeviceOwnerAdmin = isCallerDeviceOwner(callingUid); 4871 boolean doNotAskCredentialsOnBoot = 4872 (flags & DevicePolicyManager.RESET_PASSWORD_DO_NOT_ASK_CREDENTIALS_ON_BOOT) != 0; 4873 if (callerIsDeviceOwnerAdmin && doNotAskCredentialsOnBoot) { 4874 setDoNotAskCredentialsOnBoot(); 4875 } 4876 4877 // Don't do this with the lock held, because it is going to call 4878 // back in to the service. 4879 final long ident = mInjector.binderClearCallingIdentity(); 4880 final boolean result; 4881 try { 4882 if (token == null) { 4883 if (!TextUtils.isEmpty(password)) { 4884 mLockPatternUtils.saveLockPassword(password, null, quality, userHandle); 4885 } else { 4886 mLockPatternUtils.clearLock(null, userHandle); 4887 } 4888 result = true; 4889 } else { 4890 result = mLockPatternUtils.setLockCredentialWithToken(password, 4891 TextUtils.isEmpty(password) ? LockPatternUtils.CREDENTIAL_TYPE_NONE 4892 : LockPatternUtils.CREDENTIAL_TYPE_PASSWORD, 4893 quality, tokenHandle, token, userHandle); 4894 } 4895 boolean requireEntry = (flags & DevicePolicyManager.RESET_PASSWORD_REQUIRE_ENTRY) != 0; 4896 if (requireEntry) { 4897 mLockPatternUtils.requireStrongAuth(STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, 4898 UserHandle.USER_ALL); 4899 } 4900 synchronized (getLockObject()) { 4901 int newOwner = requireEntry ? callingUid : -1; 4902 if (policy.mPasswordOwner != newOwner) { 4903 policy.mPasswordOwner = newOwner; 4904 saveSettingsLocked(userHandle); 4905 } 4906 } 4907 } finally { 4908 mInjector.binderRestoreCallingIdentity(ident); 4909 } 4910 return result; 4911 } 4912 4913 private boolean isLockScreenSecureUnchecked(int userId) { 4914 long ident = mInjector.binderClearCallingIdentity(); 4915 try { 4916 return mLockPatternUtils.isSecure(userId); 4917 } finally { 4918 mInjector.binderRestoreCallingIdentity(ident); 4919 } 4920 } 4921 4922 private void setDoNotAskCredentialsOnBoot() { 4923 synchronized (getLockObject()) { 4924 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4925 if (!policyData.doNotAskCredentialsOnBoot) { 4926 policyData.doNotAskCredentialsOnBoot = true; 4927 saveSettingsLocked(UserHandle.USER_SYSTEM); 4928 } 4929 } 4930 } 4931 4932 @Override 4933 public boolean getDoNotAskCredentialsOnBoot() { 4934 mContext.enforceCallingOrSelfPermission( 4935 android.Manifest.permission.QUERY_DO_NOT_ASK_CREDENTIALS_ON_BOOT, null); 4936 synchronized (getLockObject()) { 4937 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 4938 return policyData.doNotAskCredentialsOnBoot; 4939 } 4940 } 4941 4942 @Override 4943 public void setMaximumTimeToLock(ComponentName who, long timeMs, boolean parent) { 4944 if (!mHasFeature) { 4945 return; 4946 } 4947 Preconditions.checkNotNull(who, "ComponentName is null"); 4948 final int userHandle = mInjector.userHandleGetCallingUserId(); 4949 synchronized (getLockObject()) { 4950 ActiveAdmin ap = getActiveAdminForCallerLocked( 4951 who, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 4952 if (ap.maximumTimeToUnlock != timeMs) { 4953 ap.maximumTimeToUnlock = timeMs; 4954 saveSettingsLocked(userHandle); 4955 updateMaximumTimeToLockLocked(userHandle); 4956 } 4957 } 4958 if (SecurityLog.isLoggingEnabled()) { 4959 final int affectedUserId = parent ? getProfileParentId(userHandle) : userHandle; 4960 SecurityLog.writeEvent(SecurityLog.TAG_MAX_SCREEN_LOCK_TIMEOUT_SET, 4961 who.getPackageName(), userHandle, affectedUserId, timeMs); 4962 } 4963 } 4964 4965 private void updateMaximumTimeToLockLocked(@UserIdInt int userId) { 4966 // Update the profile's timeout 4967 if (isManagedProfile(userId)) { 4968 updateProfileLockTimeoutLocked(userId); 4969 } 4970 4971 final long timeMs; 4972 final long ident = mInjector.binderClearCallingIdentity(); 4973 try { 4974 // Update the device timeout 4975 final int parentId = getProfileParentId(userId); 4976 timeMs = getMaximumTimeToLockPolicyFromAdmins( 4977 getActiveAdminsForLockscreenPoliciesLocked(parentId, false)); 4978 4979 final DevicePolicyData policy = getUserDataUnchecked(parentId); 4980 if (policy.mLastMaximumTimeToLock == timeMs) { 4981 return; 4982 } 4983 policy.mLastMaximumTimeToLock = timeMs; 4984 4985 if (policy.mLastMaximumTimeToLock != Long.MAX_VALUE) { 4986 // Make sure KEEP_SCREEN_ON is disabled, since that 4987 // would allow bypassing of the maximum time to lock. 4988 mInjector.settingsGlobalPutInt(Settings.Global.STAY_ON_WHILE_PLUGGED_IN, 0); 4989 } 4990 } finally { 4991 mInjector.binderRestoreCallingIdentity(ident); 4992 } 4993 4994 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 4995 UserHandle.USER_SYSTEM, timeMs); 4996 } 4997 4998 private void updateProfileLockTimeoutLocked(@UserIdInt int userId) { 4999 final long timeMs; 5000 if (isSeparateProfileChallengeEnabled(userId)) { 5001 timeMs = getMaximumTimeToLockPolicyFromAdmins( 5002 getActiveAdminsForLockscreenPoliciesLocked(userId, false /* parent */)); 5003 } else { 5004 timeMs = Long.MAX_VALUE; 5005 } 5006 5007 final DevicePolicyData policy = getUserDataUnchecked(userId); 5008 if (policy.mLastMaximumTimeToLock == timeMs) { 5009 return; 5010 } 5011 policy.mLastMaximumTimeToLock = timeMs; 5012 5013 mInjector.getPowerManagerInternal().setMaximumScreenOffTimeoutFromDeviceAdmin( 5014 userId, policy.mLastMaximumTimeToLock); 5015 } 5016 5017 @Override 5018 public long getMaximumTimeToLock(ComponentName who, int userHandle, boolean parent) { 5019 if (!mHasFeature) { 5020 return 0; 5021 } 5022 enforceFullCrossUsersPermission(userHandle); 5023 synchronized (getLockObject()) { 5024 if (who != null) { 5025 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 5026 return admin != null ? admin.maximumTimeToUnlock : 0; 5027 } 5028 // Return the strictest policy across all participating admins. 5029 final List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 5030 userHandle, parent); 5031 final long timeMs = getMaximumTimeToLockPolicyFromAdmins(admins); 5032 return timeMs == Long.MAX_VALUE ? 0 : timeMs; 5033 } 5034 } 5035 5036 private long getMaximumTimeToLockPolicyFromAdmins(List<ActiveAdmin> admins) { 5037 long time = Long.MAX_VALUE; 5038 for (final ActiveAdmin admin : admins) { 5039 if (admin.maximumTimeToUnlock > 0 && admin.maximumTimeToUnlock < time) { 5040 time = admin.maximumTimeToUnlock; 5041 } 5042 } 5043 return time; 5044 } 5045 5046 @Override 5047 public void setRequiredStrongAuthTimeout(ComponentName who, long timeoutMs, 5048 boolean parent) { 5049 if (!mHasFeature) { 5050 return; 5051 } 5052 Preconditions.checkNotNull(who, "ComponentName is null"); 5053 Preconditions.checkArgument(timeoutMs >= 0, "Timeout must not be a negative number."); 5054 // timeoutMs with value 0 means that the admin doesn't participate 5055 // timeoutMs is clamped to the interval in case the internal constants change in the future 5056 final long minimumStrongAuthTimeout = getMinimumStrongAuthTimeoutMs(); 5057 if (timeoutMs != 0 && timeoutMs < minimumStrongAuthTimeout) { 5058 timeoutMs = minimumStrongAuthTimeout; 5059 } 5060 if (timeoutMs > DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS) { 5061 timeoutMs = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 5062 } 5063 5064 final int userHandle = mInjector.userHandleGetCallingUserId(); 5065 synchronized (getLockObject()) { 5066 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 5067 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, parent); 5068 if (ap.strongAuthUnlockTimeout != timeoutMs) { 5069 ap.strongAuthUnlockTimeout = timeoutMs; 5070 saveSettingsLocked(userHandle); 5071 } 5072 } 5073 } 5074 5075 /** 5076 * Return a single admin's strong auth unlock timeout or minimum value (strictest) of all 5077 * admins if who is null. 5078 * Returns 0 if not configured for the provided admin. 5079 */ 5080 @Override 5081 public long getRequiredStrongAuthTimeout(ComponentName who, int userId, boolean parent) { 5082 if (!mHasFeature) { 5083 return DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 5084 } 5085 enforceFullCrossUsersPermission(userId); 5086 synchronized (getLockObject()) { 5087 if (who != null) { 5088 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId, parent); 5089 return admin != null ? admin.strongAuthUnlockTimeout : 0; 5090 } 5091 5092 // Return the strictest policy across all participating admins. 5093 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked(userId, parent); 5094 5095 long strongAuthUnlockTimeout = DevicePolicyManager.DEFAULT_STRONG_AUTH_TIMEOUT_MS; 5096 for (int i = 0; i < admins.size(); i++) { 5097 final long timeout = admins.get(i).strongAuthUnlockTimeout; 5098 if (timeout != 0) { // take only participating admins into account 5099 strongAuthUnlockTimeout = Math.min(timeout, strongAuthUnlockTimeout); 5100 } 5101 } 5102 return Math.max(strongAuthUnlockTimeout, getMinimumStrongAuthTimeoutMs()); 5103 } 5104 } 5105 5106 private long getMinimumStrongAuthTimeoutMs() { 5107 if (!mInjector.isBuildDebuggable()) { 5108 return MINIMUM_STRONG_AUTH_TIMEOUT_MS; 5109 } 5110 // ideally the property was named persist.sys.min_strong_auth_timeout, but system property 5111 // name cannot be longer than 31 characters 5112 return Math.min(mInjector.systemPropertiesGetLong("persist.sys.min_str_auth_timeo", 5113 MINIMUM_STRONG_AUTH_TIMEOUT_MS), 5114 MINIMUM_STRONG_AUTH_TIMEOUT_MS); 5115 } 5116 5117 @Override 5118 public void lockNow(int flags, boolean parent) { 5119 if (!mHasFeature) { 5120 return; 5121 } 5122 5123 final int callingUserId = mInjector.userHandleGetCallingUserId(); 5124 synchronized (getLockObject()) { 5125 // This API can only be called by an active device admin, 5126 // so try to retrieve it to check that the caller is one. 5127 final ActiveAdmin admin = getActiveAdminForCallerLocked( 5128 null, DeviceAdminInfo.USES_POLICY_FORCE_LOCK, parent); 5129 5130 final long ident = mInjector.binderClearCallingIdentity(); 5131 try { 5132 final ComponentName adminComponent = admin.info.getComponent(); 5133 // Evict key 5134 if ((flags & DevicePolicyManager.FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY) != 0) { 5135 enforceManagedProfile( 5136 callingUserId, "set FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY"); 5137 if (!isProfileOwner(adminComponent, callingUserId)) { 5138 throw new SecurityException("Only profile owner admins can set " 5139 + "FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY"); 5140 } 5141 if (parent) { 5142 throw new IllegalArgumentException( 5143 "Cannot set FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY for the parent"); 5144 } 5145 if (!mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 5146 throw new UnsupportedOperationException( 5147 "FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY only applies to FBE devices"); 5148 } 5149 mUserManager.evictCredentialEncryptionKey(callingUserId); 5150 } 5151 5152 // Lock all users unless this is a managed profile with a separate challenge 5153 final int userToLock = (parent || !isSeparateProfileChallengeEnabled(callingUserId) 5154 ? UserHandle.USER_ALL : callingUserId); 5155 mLockPatternUtils.requireStrongAuth( 5156 STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW, userToLock); 5157 5158 // Require authentication for the device or profile 5159 if (userToLock == UserHandle.USER_ALL) { 5160 // Power off the display 5161 mInjector.powerManagerGoToSleep(SystemClock.uptimeMillis(), 5162 PowerManager.GO_TO_SLEEP_REASON_DEVICE_ADMIN, 0); 5163 mInjector.getIWindowManager().lockNow(null); 5164 } else { 5165 mInjector.getTrustManager().setDeviceLockedForUser(userToLock, true); 5166 } 5167 5168 if (SecurityLog.isLoggingEnabled()) { 5169 final int affectedUserId = 5170 parent ? getProfileParentId(callingUserId) : callingUserId; 5171 SecurityLog.writeEvent(SecurityLog.TAG_REMOTE_LOCK, 5172 adminComponent.getPackageName(), callingUserId, affectedUserId); 5173 } 5174 } catch (RemoteException e) { 5175 } finally { 5176 mInjector.binderRestoreCallingIdentity(ident); 5177 } 5178 } 5179 } 5180 5181 @Override 5182 public void enforceCanManageCaCerts(ComponentName who, String callerPackage) { 5183 if (who == null) { 5184 if (!isCallerDelegate(callerPackage, DELEGATION_CERT_INSTALL)) { 5185 mContext.enforceCallingOrSelfPermission(MANAGE_CA_CERTIFICATES, null); 5186 } 5187 } else { 5188 enforceProfileOrDeviceOwner(who); 5189 } 5190 } 5191 5192 private void enforceProfileOrDeviceOwner(ComponentName who) { 5193 synchronized (getLockObject()) { 5194 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5195 } 5196 } 5197 5198 @Override 5199 public boolean approveCaCert(String alias, int userId, boolean approval) { 5200 enforceManageUsers(); 5201 synchronized (getLockObject()) { 5202 Set<String> certs = getUserData(userId).mAcceptedCaCertificates; 5203 boolean changed = (approval ? certs.add(alias) : certs.remove(alias)); 5204 if (!changed) { 5205 return false; 5206 } 5207 saveSettingsLocked(userId); 5208 } 5209 mCertificateMonitor.onCertificateApprovalsChanged(userId); 5210 return true; 5211 } 5212 5213 @Override 5214 public boolean isCaCertApproved(String alias, int userId) { 5215 enforceManageUsers(); 5216 synchronized (getLockObject()) { 5217 return getUserData(userId).mAcceptedCaCertificates.contains(alias); 5218 } 5219 } 5220 5221 private void removeCaApprovalsIfNeeded(int userId) { 5222 for (UserInfo userInfo : mUserManager.getProfiles(userId)) { 5223 boolean isSecure = mLockPatternUtils.isSecure(userInfo.id); 5224 if (userInfo.isManagedProfile()){ 5225 isSecure |= mLockPatternUtils.isSecure(getProfileParentId(userInfo.id)); 5226 } 5227 if (!isSecure) { 5228 synchronized (getLockObject()) { 5229 getUserData(userInfo.id).mAcceptedCaCertificates.clear(); 5230 saveSettingsLocked(userInfo.id); 5231 } 5232 mCertificateMonitor.onCertificateApprovalsChanged(userId); 5233 } 5234 } 5235 } 5236 5237 @Override 5238 public boolean installCaCert(ComponentName admin, String callerPackage, byte[] certBuffer) 5239 throws RemoteException { 5240 if (!mHasFeature) { 5241 return false; 5242 } 5243 enforceCanManageCaCerts(admin, callerPackage); 5244 5245 final String alias; 5246 5247 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 5248 final long id = mInjector.binderClearCallingIdentity(); 5249 try { 5250 alias = mCertificateMonitor.installCaCert(userHandle, certBuffer); 5251 if (alias == null) { 5252 Log.w(LOG_TAG, "Problem installing cert"); 5253 return false; 5254 } 5255 } finally { 5256 mInjector.binderRestoreCallingIdentity(id); 5257 } 5258 5259 synchronized (getLockObject()) { 5260 getUserData(userHandle.getIdentifier()).mOwnerInstalledCaCerts.add(alias); 5261 saveSettingsLocked(userHandle.getIdentifier()); 5262 } 5263 return true; 5264 } 5265 5266 @Override 5267 public void uninstallCaCerts(ComponentName admin, String callerPackage, String[] aliases) { 5268 if (!mHasFeature) { 5269 return; 5270 } 5271 enforceCanManageCaCerts(admin, callerPackage); 5272 5273 final int userId = mInjector.userHandleGetCallingUserId(); 5274 final long id = mInjector.binderClearCallingIdentity(); 5275 try { 5276 mCertificateMonitor.uninstallCaCerts(UserHandle.of(userId), aliases); 5277 } finally { 5278 mInjector.binderRestoreCallingIdentity(id); 5279 } 5280 5281 synchronized (getLockObject()) { 5282 if (getUserData(userId).mOwnerInstalledCaCerts.removeAll(Arrays.asList(aliases))) { 5283 saveSettingsLocked(userId); 5284 } 5285 } 5286 } 5287 5288 @Override 5289 public boolean installKeyPair(ComponentName who, String callerPackage, byte[] privKey, 5290 byte[] cert, byte[] chain, String alias, boolean requestAccess, 5291 boolean isUserSelectable) { 5292 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5293 DELEGATION_CERT_INSTALL); 5294 5295 5296 final int callingUid = mInjector.binderGetCallingUid(); 5297 final long id = mInjector.binderClearCallingIdentity(); 5298 try { 5299 final KeyChainConnection keyChainConnection = 5300 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid)); 5301 try { 5302 IKeyChainService keyChain = keyChainConnection.getService(); 5303 if (!keyChain.installKeyPair(privKey, cert, chain, alias)) { 5304 return false; 5305 } 5306 if (requestAccess) { 5307 keyChain.setGrant(callingUid, alias, true); 5308 } 5309 keyChain.setUserSelectable(alias, isUserSelectable); 5310 return true; 5311 } catch (RemoteException e) { 5312 Log.e(LOG_TAG, "Installing certificate", e); 5313 } finally { 5314 keyChainConnection.close(); 5315 } 5316 } catch (InterruptedException e) { 5317 Log.w(LOG_TAG, "Interrupted while installing certificate", e); 5318 Thread.currentThread().interrupt(); 5319 } finally { 5320 mInjector.binderRestoreCallingIdentity(id); 5321 } 5322 return false; 5323 } 5324 5325 @Override 5326 public boolean removeKeyPair(ComponentName who, String callerPackage, String alias) { 5327 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5328 DELEGATION_CERT_INSTALL); 5329 5330 final UserHandle userHandle = new UserHandle(UserHandle.getCallingUserId()); 5331 final long id = Binder.clearCallingIdentity(); 5332 try { 5333 final KeyChainConnection keyChainConnection = KeyChain.bindAsUser(mContext, userHandle); 5334 try { 5335 IKeyChainService keyChain = keyChainConnection.getService(); 5336 return keyChain.removeKeyPair(alias); 5337 } catch (RemoteException e) { 5338 Log.e(LOG_TAG, "Removing keypair", e); 5339 } finally { 5340 keyChainConnection.close(); 5341 } 5342 } catch (InterruptedException e) { 5343 Log.w(LOG_TAG, "Interrupted while removing keypair", e); 5344 Thread.currentThread().interrupt(); 5345 } finally { 5346 Binder.restoreCallingIdentity(id); 5347 } 5348 return false; 5349 } 5350 5351 private void enforceIsDeviceOwnerOrCertInstallerOfDeviceOwner( 5352 ComponentName who, String callerPackage, int callerUid) throws SecurityException { 5353 if (who == null) { 5354 if (!mOwners.hasDeviceOwner()) { 5355 throw new SecurityException("Not in Device Owner mode."); 5356 } 5357 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 5358 throw new SecurityException("Caller not from device owner user"); 5359 } 5360 if (!isCallerDelegate(callerPackage, DELEGATION_CERT_INSTALL)) { 5361 throw new SecurityException("Caller with uid " + mInjector.binderGetCallingUid() + 5362 "has no permission to generate keys."); 5363 } 5364 } else { 5365 // Caller provided - check it is the device owner. 5366 synchronized (getLockObject()) { 5367 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 5368 } 5369 } 5370 } 5371 5372 @VisibleForTesting 5373 public static int[] translateIdAttestationFlags( 5374 int idAttestationFlags) { 5375 Map<Integer, Integer> idTypeToAttestationFlag = new HashMap(); 5376 idTypeToAttestationFlag.put(ID_TYPE_SERIAL, AttestationUtils.ID_TYPE_SERIAL); 5377 idTypeToAttestationFlag.put(ID_TYPE_IMEI, AttestationUtils.ID_TYPE_IMEI); 5378 idTypeToAttestationFlag.put(ID_TYPE_MEID, AttestationUtils.ID_TYPE_MEID); 5379 5380 int numFlagsSet = Integer.bitCount(idAttestationFlags); 5381 // No flags are set - return null to indicate no device ID attestation information should 5382 // be included in the attestation record. 5383 if (numFlagsSet == 0) { 5384 return null; 5385 } 5386 5387 // If the ID_TYPE_BASE_INFO is set, make sure that a non-null array is returned, even if 5388 // no other flag is set. That will lead to inclusion of general device make data in the 5389 // attestation record, but no specific device identifiers. 5390 if ((idAttestationFlags & ID_TYPE_BASE_INFO) != 0) { 5391 numFlagsSet -= 1; 5392 idAttestationFlags = idAttestationFlags & (~ID_TYPE_BASE_INFO); 5393 } 5394 5395 int[] attestationUtilsFlags = new int[numFlagsSet]; 5396 int i = 0; 5397 for (Integer idType: idTypeToAttestationFlag.keySet()) { 5398 if ((idType & idAttestationFlags) != 0) { 5399 attestationUtilsFlags[i++] = idTypeToAttestationFlag.get(idType); 5400 } 5401 } 5402 5403 return attestationUtilsFlags; 5404 } 5405 5406 @Override 5407 public boolean generateKeyPair(ComponentName who, String callerPackage, String algorithm, 5408 ParcelableKeyGenParameterSpec parcelableKeySpec, 5409 int idAttestationFlags, 5410 KeymasterCertificateChain attestationChain) { 5411 // Get attestation flags, if any. 5412 final int[] attestationUtilsFlags = translateIdAttestationFlags(idAttestationFlags); 5413 final boolean deviceIdAttestationRequired = attestationUtilsFlags != null; 5414 final int callingUid = mInjector.binderGetCallingUid(); 5415 5416 if (deviceIdAttestationRequired && attestationUtilsFlags.length > 0) { 5417 enforceIsDeviceOwnerOrCertInstallerOfDeviceOwner(who, callerPackage, callingUid); 5418 } else { 5419 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5420 DELEGATION_CERT_INSTALL); 5421 } 5422 final KeyGenParameterSpec keySpec = parcelableKeySpec.getSpec(); 5423 final String alias = keySpec.getKeystoreAlias(); 5424 if (TextUtils.isEmpty(alias)) { 5425 throw new IllegalArgumentException("Empty alias provided."); 5426 } 5427 // As the caller will be granted access to the key, ensure no UID was specified, as 5428 // it will not have the desired effect. 5429 if (keySpec.getUid() != KeyStore.UID_SELF) { 5430 Log.e(LOG_TAG, "Only the caller can be granted access to the generated keypair."); 5431 return false; 5432 } 5433 5434 if (deviceIdAttestationRequired && (keySpec.getAttestationChallenge() == null)) { 5435 throw new IllegalArgumentException( 5436 "Requested Device ID attestation but challenge is empty."); 5437 } 5438 5439 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 5440 final long id = mInjector.binderClearCallingIdentity(); 5441 try { 5442 try (KeyChainConnection keyChainConnection = 5443 KeyChain.bindAsUser(mContext, userHandle)) { 5444 IKeyChainService keyChain = keyChainConnection.getService(); 5445 5446 // Copy the provided keySpec, excluding the attestation challenge, which will be 5447 // used later for requesting key attestation record. 5448 final KeyGenParameterSpec noAttestationSpec = 5449 new KeyGenParameterSpec.Builder(keySpec) 5450 .setAttestationChallenge(null) 5451 .build(); 5452 5453 final int generationResult = keyChain.generateKeyPair(algorithm, 5454 new ParcelableKeyGenParameterSpec(noAttestationSpec)); 5455 if (generationResult != KeyChain.KEY_GEN_SUCCESS) { 5456 Log.e(LOG_TAG, String.format( 5457 "KeyChain failed to generate a keypair, error %d.", generationResult)); 5458 return false; 5459 } 5460 5461 // Set a grant for the caller here so that when the client calls 5462 // requestPrivateKey, it will be able to get the key from Keystore. 5463 // Note the use of the calling UID, since the request for the private 5464 // key will come from the client's process, so the grant has to be for 5465 // that UID. 5466 keyChain.setGrant(callingUid, alias, true); 5467 5468 final byte[] attestationChallenge = keySpec.getAttestationChallenge(); 5469 if (attestationChallenge != null) { 5470 final int attestationResult = keyChain.attestKey( 5471 alias, attestationChallenge, attestationUtilsFlags, attestationChain); 5472 if (attestationResult != KeyChain.KEY_ATTESTATION_SUCCESS) { 5473 Log.e(LOG_TAG, String.format( 5474 "Attestation for %s failed (rc=%d), deleting key.", 5475 alias, attestationResult)); 5476 keyChain.removeKeyPair(alias); 5477 if (attestationResult == KeyChain.KEY_ATTESTATION_CANNOT_ATTEST_IDS) { 5478 throw new UnsupportedOperationException( 5479 "Device does not support Device ID attestation."); 5480 } 5481 return false; 5482 } 5483 } 5484 return true; 5485 } 5486 } catch (RemoteException e) { 5487 Log.e(LOG_TAG, "KeyChain error while generating a keypair", e); 5488 } catch (InterruptedException e) { 5489 Log.w(LOG_TAG, "Interrupted while generating keypair", e); 5490 Thread.currentThread().interrupt(); 5491 } finally { 5492 mInjector.binderRestoreCallingIdentity(id); 5493 } 5494 return false; 5495 } 5496 5497 @Override 5498 public boolean setKeyPairCertificate(ComponentName who, String callerPackage, String alias, 5499 byte[] cert, byte[] chain, boolean isUserSelectable) { 5500 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 5501 DELEGATION_CERT_INSTALL); 5502 5503 final int callingUid = mInjector.binderGetCallingUid(); 5504 final long id = mInjector.binderClearCallingIdentity(); 5505 try (final KeyChainConnection keyChainConnection = 5506 KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid))) { 5507 IKeyChainService keyChain = keyChainConnection.getService(); 5508 if (!keyChain.setKeyPairCertificate(alias, cert, chain)) { 5509 return false; 5510 } 5511 keyChain.setUserSelectable(alias, isUserSelectable); 5512 return true; 5513 } catch (InterruptedException e) { 5514 Log.w(LOG_TAG, "Interrupted while setting keypair certificate", e); 5515 Thread.currentThread().interrupt(); 5516 } catch (RemoteException e) { 5517 Log.e(LOG_TAG, "Failed setting keypair certificate", e); 5518 } finally { 5519 mInjector.binderRestoreCallingIdentity(id); 5520 } 5521 return false; 5522 } 5523 5524 @Override 5525 public void choosePrivateKeyAlias(final int uid, final Uri uri, final String alias, 5526 final IBinder response) { 5527 // Caller UID needs to be trusted, so we restrict this method to SYSTEM_UID callers. 5528 if (!isCallerWithSystemUid()) { 5529 return; 5530 } 5531 5532 final UserHandle caller = mInjector.binderGetCallingUserHandle(); 5533 // If there is a profile owner, redirect to that; otherwise query the device owner. 5534 ComponentName aliasChooser = getProfileOwner(caller.getIdentifier()); 5535 if (aliasChooser == null && caller.isSystem()) { 5536 synchronized (getLockObject()) { 5537 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 5538 if (deviceOwnerAdmin != null) { 5539 aliasChooser = deviceOwnerAdmin.info.getComponent(); 5540 } 5541 } 5542 } 5543 if (aliasChooser == null) { 5544 sendPrivateKeyAliasResponse(null, response); 5545 return; 5546 } 5547 5548 Intent intent = new Intent(DeviceAdminReceiver.ACTION_CHOOSE_PRIVATE_KEY_ALIAS); 5549 intent.setComponent(aliasChooser); 5550 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_SENDER_UID, uid); 5551 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_URI, uri); 5552 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_ALIAS, alias); 5553 intent.putExtra(DeviceAdminReceiver.EXTRA_CHOOSE_PRIVATE_KEY_RESPONSE, response); 5554 intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 5555 5556 final long id = mInjector.binderClearCallingIdentity(); 5557 try { 5558 mContext.sendOrderedBroadcastAsUser(intent, caller, null, new BroadcastReceiver() { 5559 @Override 5560 public void onReceive(Context context, Intent intent) { 5561 final String chosenAlias = getResultData(); 5562 sendPrivateKeyAliasResponse(chosenAlias, response); 5563 } 5564 }, null, Activity.RESULT_OK, null, null); 5565 } finally { 5566 mInjector.binderRestoreCallingIdentity(id); 5567 } 5568 } 5569 5570 private void sendPrivateKeyAliasResponse(final String alias, final IBinder responseBinder) { 5571 final IKeyChainAliasCallback keyChainAliasResponse = 5572 IKeyChainAliasCallback.Stub.asInterface(responseBinder); 5573 // Send the response. It's OK to do this from the main thread because IKeyChainAliasCallback 5574 // is oneway, which means it won't block if the recipient lives in another process. 5575 try { 5576 keyChainAliasResponse.alias(alias); 5577 } catch (Exception e) { 5578 // Caller could throw RuntimeException or RemoteException back across processes. Catch 5579 // everything just to be sure. 5580 Log.e(LOG_TAG, "error while responding to callback", e); 5581 } 5582 } 5583 5584 /** 5585 * Determine whether DPMS should check if a delegate package is already installed before 5586 * granting it new delegations via {@link #setDelegatedScopes}. 5587 */ 5588 private static boolean shouldCheckIfDelegatePackageIsInstalled(String delegatePackage, 5589 int targetSdk, List<String> scopes) { 5590 // 1) Never skip is installed check from N. 5591 if (targetSdk >= Build.VERSION_CODES.N) { 5592 return true; 5593 } 5594 // 2) Skip if DELEGATION_CERT_INSTALL is the only scope being given. 5595 if (scopes.size() == 1 && scopes.get(0).equals(DELEGATION_CERT_INSTALL)) { 5596 return false; 5597 } 5598 // 3) Skip if all previously granted scopes are being cleared. 5599 if (scopes.isEmpty()) { 5600 return false; 5601 } 5602 // Otherwise it should check that delegatePackage is installed. 5603 return true; 5604 } 5605 5606 /** 5607 * Set the scopes of a device owner or profile owner delegate. 5608 * 5609 * @param who the device owner or profile owner. 5610 * @param delegatePackage the name of the delegate package. 5611 * @param scopes the list of delegation scopes to be given to the delegate package. 5612 */ 5613 @Override 5614 public void setDelegatedScopes(ComponentName who, String delegatePackage, 5615 List<String> scopes) throws SecurityException { 5616 Preconditions.checkNotNull(who, "ComponentName is null"); 5617 Preconditions.checkStringNotEmpty(delegatePackage, "Delegate package is null or empty"); 5618 Preconditions.checkCollectionElementsNotNull(scopes, "Scopes"); 5619 // Remove possible duplicates. 5620 scopes = new ArrayList(new ArraySet(scopes)); 5621 // Ensure given scopes are valid. 5622 if (scopes.retainAll(Arrays.asList(DELEGATIONS))) { 5623 throw new IllegalArgumentException("Unexpected delegation scopes"); 5624 } 5625 5626 // Retrieve the user ID of the calling process. 5627 final int userId = mInjector.userHandleGetCallingUserId(); 5628 synchronized (getLockObject()) { 5629 // Ensure calling process is device/profile owner. 5630 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5631 // Ensure the delegate is installed (skip this for DELEGATION_CERT_INSTALL in pre-N). 5632 if (shouldCheckIfDelegatePackageIsInstalled(delegatePackage, 5633 getTargetSdk(who.getPackageName(), userId), scopes)) { 5634 // Throw when the delegate package is not installed. 5635 if (!isPackageInstalledForUser(delegatePackage, userId)) { 5636 throw new IllegalArgumentException("Package " + delegatePackage 5637 + " is not installed on the current user"); 5638 } 5639 } 5640 5641 // Set the new delegate in user policies. 5642 final DevicePolicyData policy = getUserData(userId); 5643 if (!scopes.isEmpty()) { 5644 policy.mDelegationMap.put(delegatePackage, new ArrayList<>(scopes)); 5645 } else { 5646 // Remove any delegation info if the given scopes list is empty. 5647 policy.mDelegationMap.remove(delegatePackage); 5648 } 5649 5650 // Notify delegate package of updates. 5651 final Intent intent = new Intent( 5652 DevicePolicyManager.ACTION_APPLICATION_DELEGATION_SCOPES_CHANGED); 5653 // Only call receivers registered with Context#registerReceiver (dont wake delegate). 5654 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 5655 // Limit components this intent resolves to to the delegate package. 5656 intent.setPackage(delegatePackage); 5657 // Include the list of delegated scopes as an extra. 5658 intent.putStringArrayListExtra(DevicePolicyManager.EXTRA_DELEGATION_SCOPES, 5659 (ArrayList<String>) scopes); 5660 // Send the broadcast. 5661 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 5662 5663 // Persist updates. 5664 saveSettingsLocked(userId); 5665 } 5666 } 5667 5668 /** 5669 * Get the delegation scopes given to a delegate package by a device owner or profile owner. 5670 * 5671 * A DO/PO can get the scopes of any package. A non DO/PO package can get its own scopes by 5672 * passing in {@code null} as the {@code who} parameter and its own name as the 5673 * {@code delegatepackage}. 5674 * 5675 * @param who the device owner or profile owner, or {@code null} if the caller is 5676 * {@code delegatePackage}. 5677 * @param delegatePackage the name of the delegate package whose scopes are to be retrieved. 5678 * @return a list of the delegation scopes currently given to {@code delegatePackage}. 5679 */ 5680 @Override 5681 @NonNull 5682 public List<String> getDelegatedScopes(ComponentName who, 5683 String delegatePackage) throws SecurityException { 5684 Preconditions.checkNotNull(delegatePackage, "Delegate package is null"); 5685 5686 // Retrieve the user ID of the calling process. 5687 final int callingUid = mInjector.binderGetCallingUid(); 5688 final int userId = UserHandle.getUserId(callingUid); 5689 synchronized (getLockObject()) { 5690 // Ensure calling process is device/profile owner. 5691 if (who != null) { 5692 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5693 // Or ensure calling process is delegatePackage itself. 5694 } else { 5695 int uid = 0; 5696 try { 5697 uid = mInjector.getPackageManager() 5698 .getPackageUidAsUser(delegatePackage, userId); 5699 } catch(NameNotFoundException e) { 5700 } 5701 if (uid != callingUid) { 5702 throw new SecurityException("Caller with uid " + callingUid + " is not " 5703 + delegatePackage); 5704 } 5705 } 5706 final DevicePolicyData policy = getUserData(userId); 5707 // Retrieve the scopes assigned to delegatePackage, or null if no scope was given. 5708 final List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5709 return scopes == null ? Collections.EMPTY_LIST : scopes; 5710 } 5711 } 5712 5713 /** 5714 * Get a list of packages that were given a specific delegation scopes by a device owner or 5715 * profile owner. 5716 * 5717 * @param who the device owner or profile owner. 5718 * @param scope the scope whose delegates are to be retrieved. 5719 * @return a list of the delegate packages currently given the {@code scope} delegation. 5720 */ 5721 @NonNull 5722 public List<String> getDelegatePackages(ComponentName who, String scope) 5723 throws SecurityException { 5724 Preconditions.checkNotNull(who, "ComponentName is null"); 5725 Preconditions.checkNotNull(scope, "Scope is null"); 5726 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5727 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5728 } 5729 5730 // Retrieve the user ID of the calling process. 5731 final int userId = mInjector.userHandleGetCallingUserId(); 5732 synchronized (getLockObject()) { 5733 // Ensure calling process is device/profile owner. 5734 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5735 final DevicePolicyData policy = getUserData(userId); 5736 5737 // Create a list to hold the resulting delegate packages. 5738 final List<String> delegatePackagesWithScope = new ArrayList<>(); 5739 // Add all delegations containing scope to the result list. 5740 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5741 if (policy.mDelegationMap.valueAt(i).contains(scope)) { 5742 delegatePackagesWithScope.add(policy.mDelegationMap.keyAt(i)); 5743 } 5744 } 5745 return delegatePackagesWithScope; 5746 } 5747 } 5748 5749 /** 5750 * Check whether a caller application has been delegated a given scope via 5751 * {@link #setDelegatedScopes} to access privileged APIs on the behalf of a profile owner or 5752 * device owner. 5753 * <p> 5754 * This is done by checking that {@code callerPackage} was granted {@code scope} delegation and 5755 * then comparing the calling UID with the UID of {@code callerPackage} as reported by 5756 * {@link PackageManager#getPackageUidAsUser}. 5757 * 5758 * @param callerPackage the name of the package that is trying to invoke a function in the DPMS. 5759 * @param scope the delegation scope to be checked. 5760 * @return {@code true} if the calling process is a delegate of {@code scope}. 5761 */ 5762 private boolean isCallerDelegate(String callerPackage, String scope) { 5763 Preconditions.checkNotNull(callerPackage, "callerPackage is null"); 5764 if (!Arrays.asList(DELEGATIONS).contains(scope)) { 5765 throw new IllegalArgumentException("Unexpected delegation scope: " + scope); 5766 } 5767 5768 // Retrieve the UID and user ID of the calling process. 5769 final int callingUid = mInjector.binderGetCallingUid(); 5770 final int userId = UserHandle.getUserId(callingUid); 5771 synchronized (getLockObject()) { 5772 // Retrieve user policy data. 5773 final DevicePolicyData policy = getUserData(userId); 5774 // Retrieve the list of delegation scopes granted to callerPackage. 5775 final List<String> scopes = policy.mDelegationMap.get(callerPackage); 5776 // Check callingUid only if callerPackage has the required scope delegation. 5777 if (scopes != null && scopes.contains(scope)) { 5778 try { 5779 // Retrieve the expected UID for callerPackage. 5780 final int uid = mInjector.getPackageManager() 5781 .getPackageUidAsUser(callerPackage, userId); 5782 // Return true if the caller is actually callerPackage. 5783 return uid == callingUid; 5784 } catch (NameNotFoundException e) { 5785 // Ignore. 5786 } 5787 } 5788 return false; 5789 } 5790 } 5791 5792 /** 5793 * Throw a security exception if a ComponentName is given and it is not a device/profile owner 5794 * or if the calling process is not a delegate of the given scope. 5795 * 5796 * @param who the device owner of profile owner, or null if {@code callerPackage} is a 5797 * {@code scope} delegate. 5798 * @param callerPackage the name of the calling package. Required if {@code who} is 5799 * {@code null}. 5800 * @param reqPolicy the policy used in the API whose access permission is being checked. 5801 * @param scope the delegation scope corresponding to the API being checked. 5802 * @throws SecurityException if {@code who} is given and is not an owner for {@code reqPolicy}; 5803 * or when {@code who} is {@code null} and {@code callerPackage} is not a delegate 5804 * of {@code scope}. 5805 */ 5806 private void enforceCanManageScope(ComponentName who, String callerPackage, int reqPolicy, 5807 String scope) { 5808 // If a ComponentName is given ensure it is a device or profile owner according to policy. 5809 if (who != null) { 5810 synchronized (getLockObject()) { 5811 getActiveAdminForCallerLocked(who, reqPolicy); 5812 } 5813 // If no ComponentName is given ensure calling process has scope delegation. 5814 } else if (!isCallerDelegate(callerPackage, scope)) { 5815 throw new SecurityException("Caller with uid " + mInjector.binderGetCallingUid() 5816 + " is not a delegate of scope " + scope + "."); 5817 } 5818 } 5819 5820 /** 5821 * Helper function to preserve delegation behavior pre-O when using the deprecated functions 5822 * {@code #setCertInstallerPackage} and {@code #setApplicationRestrictionsManagingPackage}. 5823 */ 5824 private void setDelegatedScopePreO(ComponentName who, 5825 String delegatePackage, String scope) { 5826 Preconditions.checkNotNull(who, "ComponentName is null"); 5827 5828 final int userId = mInjector.userHandleGetCallingUserId(); 5829 synchronized (getLockObject()) { 5830 // Ensure calling process is device/profile owner. 5831 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 5832 final DevicePolicyData policy = getUserData(userId); 5833 5834 if (delegatePackage != null) { 5835 // Set package as a delegate for scope if it is not already one. 5836 List<String> scopes = policy.mDelegationMap.get(delegatePackage); 5837 if (scopes == null) { 5838 scopes = new ArrayList<>(); 5839 } 5840 if (!scopes.contains(scope)) { 5841 scopes.add(scope); 5842 setDelegatedScopes(who, delegatePackage, scopes); 5843 } 5844 } 5845 5846 // Clear any existing scope delegates. 5847 for (int i = 0; i < policy.mDelegationMap.size(); i++) { 5848 final String currentPackage = policy.mDelegationMap.keyAt(i); 5849 final List<String> currentScopes = policy.mDelegationMap.valueAt(i); 5850 5851 if (!currentPackage.equals(delegatePackage) && currentScopes.contains(scope)) { 5852 final List<String> newScopes = new ArrayList(currentScopes); 5853 newScopes.remove(scope); 5854 setDelegatedScopes(who, currentPackage, newScopes); 5855 } 5856 } 5857 } 5858 } 5859 5860 @Override 5861 public void setCertInstallerPackage(ComponentName who, String installerPackage) 5862 throws SecurityException { 5863 setDelegatedScopePreO(who, installerPackage, DELEGATION_CERT_INSTALL); 5864 } 5865 5866 @Override 5867 public String getCertInstallerPackage(ComponentName who) throws SecurityException { 5868 final List<String> delegatePackages = getDelegatePackages(who, DELEGATION_CERT_INSTALL); 5869 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 5870 } 5871 5872 /** 5873 * @return {@code true} if the package is installed and set as always-on, {@code false} if it is 5874 * not installed and therefore not available. 5875 * 5876 * @throws SecurityException if the caller is not a profile or device owner. 5877 * @throws UnsupportedOperationException if the package does not support being set as always-on. 5878 */ 5879 @Override 5880 public boolean setAlwaysOnVpnPackage(ComponentName admin, String vpnPackage, boolean lockdown) 5881 throws SecurityException { 5882 enforceProfileOrDeviceOwner(admin); 5883 5884 final int userId = mInjector.userHandleGetCallingUserId(); 5885 final long token = mInjector.binderClearCallingIdentity(); 5886 try { 5887 if (vpnPackage != null && !isPackageInstalledForUser(vpnPackage, userId)) { 5888 return false; 5889 } 5890 ConnectivityManager connectivityManager = (ConnectivityManager) 5891 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5892 if (!connectivityManager.setAlwaysOnVpnPackageForUser(userId, vpnPackage, lockdown)) { 5893 throw new UnsupportedOperationException(); 5894 } 5895 } finally { 5896 mInjector.binderRestoreCallingIdentity(token); 5897 } 5898 return true; 5899 } 5900 5901 @Override 5902 public String getAlwaysOnVpnPackage(ComponentName admin) 5903 throws SecurityException { 5904 enforceProfileOrDeviceOwner(admin); 5905 5906 final int userId = mInjector.userHandleGetCallingUserId(); 5907 final long token = mInjector.binderClearCallingIdentity(); 5908 try{ 5909 ConnectivityManager connectivityManager = (ConnectivityManager) 5910 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 5911 return connectivityManager.getAlwaysOnVpnPackageForUser(userId); 5912 } finally { 5913 mInjector.binderRestoreCallingIdentity(token); 5914 } 5915 } 5916 5917 private void forceWipeDeviceNoLock(boolean wipeExtRequested, String reason, boolean wipeEuicc) { 5918 wtfIfInLock(); 5919 boolean success = false; 5920 try { 5921 if (wipeExtRequested) { 5922 StorageManager sm = (StorageManager) mContext.getSystemService( 5923 Context.STORAGE_SERVICE); 5924 sm.wipeAdoptableDisks(); 5925 } 5926 mInjector.recoverySystemRebootWipeUserData( 5927 /*shutdown=*/ false, reason, /*force=*/ true, /*wipeEuicc=*/ wipeEuicc); 5928 success = true; 5929 } catch (IOException | SecurityException e) { 5930 Slog.w(LOG_TAG, "Failed requesting data wipe", e); 5931 } finally { 5932 if (!success) SecurityLog.writeEvent(SecurityLog.TAG_WIPE_FAILURE); 5933 } 5934 } 5935 5936 private void forceWipeUser(int userId, String wipeReasonForUser) { 5937 boolean success = false; 5938 try { 5939 IActivityManager am = mInjector.getIActivityManager(); 5940 if (am.getCurrentUser().id == userId) { 5941 am.switchUser(UserHandle.USER_SYSTEM); 5942 } 5943 5944 success = mUserManagerInternal.removeUserEvenWhenDisallowed(userId); 5945 if (!success) { 5946 Slog.w(LOG_TAG, "Couldn't remove user " + userId); 5947 } else if (isManagedProfile(userId)) { 5948 sendWipeProfileNotification(wipeReasonForUser); 5949 } 5950 } catch (RemoteException re) { 5951 // Shouldn't happen 5952 } finally { 5953 if (!success) SecurityLog.writeEvent(SecurityLog.TAG_WIPE_FAILURE); 5954 } 5955 } 5956 5957 @Override 5958 public void wipeDataWithReason(int flags, String wipeReasonForUser) { 5959 if (!mHasFeature) { 5960 return; 5961 } 5962 Preconditions.checkStringNotEmpty(wipeReasonForUser, "wipeReasonForUser is null or empty"); 5963 enforceFullCrossUsersPermission(mInjector.userHandleGetCallingUserId()); 5964 5965 final ActiveAdmin admin; 5966 synchronized (getLockObject()) { 5967 admin = getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_WIPE_DATA); 5968 } 5969 String internalReason = "DevicePolicyManager.wipeDataWithReason() from " 5970 + admin.info.getComponent().flattenToShortString(); 5971 wipeDataNoLock( 5972 admin.info.getComponent(), flags, internalReason, wipeReasonForUser, 5973 admin.getUserHandle().getIdentifier()); 5974 } 5975 5976 private void wipeDataNoLock(ComponentName admin, int flags, String internalReason, 5977 String wipeReasonForUser, int userId) { 5978 wtfIfInLock(); 5979 5980 long ident = mInjector.binderClearCallingIdentity(); 5981 try { 5982 // First check whether the admin is allowed to wipe the device/user/profile. 5983 final String restriction; 5984 if (userId == UserHandle.USER_SYSTEM) { 5985 restriction = UserManager.DISALLOW_FACTORY_RESET; 5986 } else if (isManagedProfile(userId)) { 5987 restriction = UserManager.DISALLOW_REMOVE_MANAGED_PROFILE; 5988 } else { 5989 restriction = UserManager.DISALLOW_REMOVE_USER; 5990 } 5991 if (isAdminAffectedByRestriction(admin, restriction, userId)) { 5992 throw new SecurityException("Cannot wipe data. " + restriction 5993 + " restriction is set for user " + userId); 5994 } 5995 5996 if ((flags & WIPE_RESET_PROTECTION_DATA) != 0) { 5997 if (!isDeviceOwner(admin, userId)) { 5998 throw new SecurityException( 5999 "Only device owner admins can set WIPE_RESET_PROTECTION_DATA"); 6000 } 6001 PersistentDataBlockManager manager = (PersistentDataBlockManager) 6002 mContext.getSystemService(Context.PERSISTENT_DATA_BLOCK_SERVICE); 6003 if (manager != null) { 6004 manager.wipe(); 6005 } 6006 } 6007 6008 // TODO If split user is enabled and the device owner is set in the primary user 6009 // (rather than system), we should probably trigger factory reset. Current code just 6010 // removes that user (but still clears FRP...) 6011 if (userId == UserHandle.USER_SYSTEM) { 6012 forceWipeDeviceNoLock(/*wipeExtRequested=*/ ( 6013 flags & WIPE_EXTERNAL_STORAGE) != 0, 6014 internalReason, 6015 /*wipeEuicc=*/ (flags & WIPE_EUICC) != 0); 6016 } else { 6017 forceWipeUser(userId, wipeReasonForUser); 6018 } 6019 } finally { 6020 mInjector.binderRestoreCallingIdentity(ident); 6021 } 6022 } 6023 6024 private void sendWipeProfileNotification(String wipeReasonForUser) { 6025 Notification notification = 6026 new Notification.Builder(mContext, SystemNotificationChannels.DEVICE_ADMIN) 6027 .setSmallIcon(android.R.drawable.stat_sys_warning) 6028 .setContentTitle(mContext.getString(R.string.work_profile_deleted)) 6029 .setContentText(wipeReasonForUser) 6030 .setColor(mContext.getColor(R.color.system_notification_accent_color)) 6031 .setStyle(new Notification.BigTextStyle().bigText(wipeReasonForUser)) 6032 .build(); 6033 mInjector.getNotificationManager().notify(SystemMessage.NOTE_PROFILE_WIPED, notification); 6034 } 6035 6036 private void clearWipeProfileNotification() { 6037 mInjector.getNotificationManager().cancel(SystemMessage.NOTE_PROFILE_WIPED); 6038 } 6039 6040 @Override 6041 public void getRemoveWarning(ComponentName comp, final RemoteCallback result, int userHandle) { 6042 if (!mHasFeature) { 6043 return; 6044 } 6045 enforceFullCrossUsersPermission(userHandle); 6046 mContext.enforceCallingOrSelfPermission( 6047 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6048 6049 synchronized (getLockObject()) { 6050 ActiveAdmin admin = getActiveAdminUncheckedLocked(comp, userHandle); 6051 if (admin == null) { 6052 result.sendResult(null); 6053 return; 6054 } 6055 Intent intent = new Intent(DeviceAdminReceiver.ACTION_DEVICE_ADMIN_DISABLE_REQUESTED); 6056 intent.setFlags(Intent.FLAG_RECEIVER_FOREGROUND); 6057 intent.setComponent(admin.info.getComponent()); 6058 mContext.sendOrderedBroadcastAsUser(intent, new UserHandle(userHandle), 6059 null, new BroadcastReceiver() { 6060 @Override 6061 public void onReceive(Context context, Intent intent) { 6062 result.sendResult(getResultExtras(false)); 6063 } 6064 }, null, Activity.RESULT_OK, null, null); 6065 } 6066 } 6067 6068 /** 6069 * Notify DPMS regarding the metric of the current password. This happens when the user changes 6070 * the password, but also when the user just unlocks the keyguard. In comparison, 6071 * reportPasswordChanged() is only called when the user changes the password. 6072 */ 6073 @Override 6074 public void setActivePasswordState(PasswordMetrics metrics, int userHandle) { 6075 if (!mHasFeature) { 6076 return; 6077 } 6078 enforceFullCrossUsersPermission(userHandle); 6079 mContext.enforceCallingOrSelfPermission( 6080 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6081 6082 // If the managed profile doesn't have a separate password, set the metrics to default 6083 if (isManagedProfile(userHandle) && !isSeparateProfileChallengeEnabled(userHandle)) { 6084 metrics = new PasswordMetrics(); 6085 } 6086 6087 validateQualityConstant(metrics.quality); 6088 synchronized (getLockObject()) { 6089 mUserPasswordMetrics.put(userHandle, metrics); 6090 } 6091 } 6092 6093 @Override 6094 public void reportPasswordChanged(@UserIdInt int userId) { 6095 if (!mHasFeature) { 6096 return; 6097 } 6098 enforceFullCrossUsersPermission(userId); 6099 6100 // Managed Profile password can only be changed when it has a separate challenge. 6101 if (!isSeparateProfileChallengeEnabled(userId)) { 6102 enforceNotManagedProfile(userId, "set the active password"); 6103 } 6104 6105 mContext.enforceCallingOrSelfPermission( 6106 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6107 6108 DevicePolicyData policy = getUserData(userId); 6109 6110 long ident = mInjector.binderClearCallingIdentity(); 6111 try { 6112 synchronized (getLockObject()) { 6113 policy.mFailedPasswordAttempts = 0; 6114 updatePasswordValidityCheckpointLocked(userId, /* parent */ false); 6115 saveSettingsLocked(userId); 6116 updatePasswordExpirationsLocked(userId); 6117 setExpirationAlarmCheckLocked(mContext, userId, /* parent */ false); 6118 6119 // Send a broadcast to each profile using this password as its primary unlock. 6120 sendAdminCommandForLockscreenPoliciesLocked( 6121 DeviceAdminReceiver.ACTION_PASSWORD_CHANGED, 6122 DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD, userId); 6123 } 6124 removeCaApprovalsIfNeeded(userId); 6125 } finally { 6126 mInjector.binderRestoreCallingIdentity(ident); 6127 } 6128 } 6129 6130 /** 6131 * Called any time the device password is updated. Resets all password expiration clocks. 6132 */ 6133 private void updatePasswordExpirationsLocked(int userHandle) { 6134 ArraySet<Integer> affectedUserIds = new ArraySet<Integer>(); 6135 List<ActiveAdmin> admins = getActiveAdminsForLockscreenPoliciesLocked( 6136 userHandle, /* parent */ false); 6137 final int N = admins.size(); 6138 for (int i = 0; i < N; i++) { 6139 ActiveAdmin admin = admins.get(i); 6140 if (admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_EXPIRE_PASSWORD)) { 6141 affectedUserIds.add(admin.getUserHandle().getIdentifier()); 6142 long timeout = admin.passwordExpirationTimeout; 6143 long expiration = timeout > 0L ? (timeout + System.currentTimeMillis()) : 0L; 6144 admin.passwordExpirationDate = expiration; 6145 } 6146 } 6147 for (int affectedUserId : affectedUserIds) { 6148 saveSettingsLocked(affectedUserId); 6149 } 6150 } 6151 6152 @Override 6153 public void reportFailedPasswordAttempt(int userHandle) { 6154 enforceFullCrossUsersPermission(userHandle); 6155 if (!isSeparateProfileChallengeEnabled(userHandle)) { 6156 enforceNotManagedProfile(userHandle, 6157 "report failed password attempt if separate profile challenge is not in place"); 6158 } 6159 mContext.enforceCallingOrSelfPermission( 6160 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6161 6162 boolean wipeData = false; 6163 ActiveAdmin strictestAdmin = null; 6164 final long ident = mInjector.binderClearCallingIdentity(); 6165 try { 6166 synchronized (getLockObject()) { 6167 DevicePolicyData policy = getUserData(userHandle); 6168 policy.mFailedPasswordAttempts++; 6169 saveSettingsLocked(userHandle); 6170 if (mHasFeature) { 6171 strictestAdmin = getAdminWithMinimumFailedPasswordsForWipeLocked( 6172 userHandle, /* parent */ false); 6173 int max = strictestAdmin != null 6174 ? strictestAdmin.maximumFailedPasswordsForWipe : 0; 6175 if (max > 0 && policy.mFailedPasswordAttempts >= max) { 6176 wipeData = true; 6177 } 6178 6179 sendAdminCommandForLockscreenPoliciesLocked( 6180 DeviceAdminReceiver.ACTION_PASSWORD_FAILED, 6181 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 6182 } 6183 } 6184 } finally { 6185 mInjector.binderRestoreCallingIdentity(ident); 6186 } 6187 6188 if (wipeData && strictestAdmin != null) { 6189 final int userId = strictestAdmin.getUserHandle().getIdentifier(); 6190 Slog.i(LOG_TAG, "Max failed password attempts policy reached for admin: " 6191 + strictestAdmin.info.getComponent().flattenToShortString() 6192 + ". Calling wipeData for user " + userId); 6193 6194 // Attempt to wipe the device/user/profile associated with the admin, as if the 6195 // admin had called wipeData(). That way we can check whether the admin is actually 6196 // allowed to wipe the device (e.g. a regular device admin shouldn't be able to wipe the 6197 // device if the device owner has set DISALLOW_FACTORY_RESET, but the DO should be 6198 // able to do so). 6199 // IMPORTANT: Call without holding the lock to prevent deadlock. 6200 try { 6201 String wipeReasonForUser = mContext.getString( 6202 R.string.work_profile_deleted_reason_maximum_password_failure); 6203 wipeDataNoLock(strictestAdmin.info.getComponent(), 6204 /*flags=*/ 0, 6205 /*reason=*/ "reportFailedPasswordAttempt()", 6206 wipeReasonForUser, 6207 userId); 6208 } catch (SecurityException e) { 6209 Slog.w(LOG_TAG, "Failed to wipe user " + userId 6210 + " after max failed password attempts reached.", e); 6211 } 6212 } 6213 6214 if (mInjector.securityLogIsLoggingEnabled()) { 6215 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, 6216 /*result*/ 0, /*method strength*/ 1); 6217 } 6218 } 6219 6220 @Override 6221 public void reportSuccessfulPasswordAttempt(int userHandle) { 6222 enforceFullCrossUsersPermission(userHandle); 6223 mContext.enforceCallingOrSelfPermission( 6224 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6225 6226 synchronized (getLockObject()) { 6227 DevicePolicyData policy = getUserData(userHandle); 6228 if (policy.mFailedPasswordAttempts != 0 || policy.mPasswordOwner >= 0) { 6229 long ident = mInjector.binderClearCallingIdentity(); 6230 try { 6231 policy.mFailedPasswordAttempts = 0; 6232 policy.mPasswordOwner = -1; 6233 saveSettingsLocked(userHandle); 6234 if (mHasFeature) { 6235 sendAdminCommandForLockscreenPoliciesLocked( 6236 DeviceAdminReceiver.ACTION_PASSWORD_SUCCEEDED, 6237 DeviceAdminInfo.USES_POLICY_WATCH_LOGIN, userHandle); 6238 } 6239 } finally { 6240 mInjector.binderRestoreCallingIdentity(ident); 6241 } 6242 } 6243 } 6244 6245 if (mInjector.securityLogIsLoggingEnabled()) { 6246 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 6247 /*method strength*/ 1); 6248 } 6249 } 6250 6251 @Override 6252 public void reportFailedFingerprintAttempt(int userHandle) { 6253 enforceFullCrossUsersPermission(userHandle); 6254 mContext.enforceCallingOrSelfPermission( 6255 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6256 if (mInjector.securityLogIsLoggingEnabled()) { 6257 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 0, 6258 /*method strength*/ 0); 6259 } 6260 } 6261 6262 @Override 6263 public void reportSuccessfulFingerprintAttempt(int userHandle) { 6264 enforceFullCrossUsersPermission(userHandle); 6265 mContext.enforceCallingOrSelfPermission( 6266 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6267 if (mInjector.securityLogIsLoggingEnabled()) { 6268 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISS_AUTH_ATTEMPT, /*result*/ 1, 6269 /*method strength*/ 0); 6270 } 6271 } 6272 6273 @Override 6274 public void reportKeyguardDismissed(int userHandle) { 6275 enforceFullCrossUsersPermission(userHandle); 6276 mContext.enforceCallingOrSelfPermission( 6277 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6278 6279 if (mInjector.securityLogIsLoggingEnabled()) { 6280 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISMISSED); 6281 } 6282 } 6283 6284 @Override 6285 public void reportKeyguardSecured(int userHandle) { 6286 enforceFullCrossUsersPermission(userHandle); 6287 mContext.enforceCallingOrSelfPermission( 6288 android.Manifest.permission.BIND_DEVICE_ADMIN, null); 6289 6290 if (mInjector.securityLogIsLoggingEnabled()) { 6291 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_SECURED); 6292 } 6293 } 6294 6295 @Override 6296 public ComponentName setGlobalProxy(ComponentName who, String proxySpec, 6297 String exclusionList) { 6298 if (!mHasFeature) { 6299 return null; 6300 } 6301 synchronized (getLockObject()) { 6302 Preconditions.checkNotNull(who, "ComponentName is null"); 6303 6304 // Only check if system user has set global proxy. We don't allow other users to set it. 6305 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 6306 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6307 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 6308 6309 // Scan through active admins and find if anyone has already 6310 // set the global proxy. 6311 Set<ComponentName> compSet = policy.mAdminMap.keySet(); 6312 for (ComponentName component : compSet) { 6313 ActiveAdmin ap = policy.mAdminMap.get(component); 6314 if ((ap.specifiesGlobalProxy) && (!component.equals(who))) { 6315 // Another admin already sets the global proxy 6316 // Return it to the caller. 6317 return component; 6318 } 6319 } 6320 6321 // If the user is not system, don't set the global proxy. Fail silently. 6322 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 6323 Slog.w(LOG_TAG, "Only the owner is allowed to set the global proxy. User " 6324 + UserHandle.getCallingUserId() + " is not permitted."); 6325 return null; 6326 } 6327 if (proxySpec == null) { 6328 admin.specifiesGlobalProxy = false; 6329 admin.globalProxySpec = null; 6330 admin.globalProxyExclusionList = null; 6331 } else { 6332 6333 admin.specifiesGlobalProxy = true; 6334 admin.globalProxySpec = proxySpec; 6335 admin.globalProxyExclusionList = exclusionList; 6336 } 6337 6338 // Reset the global proxy accordingly 6339 // Do this using system permissions, as apps cannot write to secure settings 6340 long origId = mInjector.binderClearCallingIdentity(); 6341 try { 6342 resetGlobalProxyLocked(policy); 6343 } finally { 6344 mInjector.binderRestoreCallingIdentity(origId); 6345 } 6346 return null; 6347 } 6348 } 6349 6350 @Override 6351 public ComponentName getGlobalProxyAdmin(int userHandle) { 6352 if (!mHasFeature) { 6353 return null; 6354 } 6355 enforceFullCrossUsersPermission(userHandle); 6356 synchronized (getLockObject()) { 6357 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 6358 // Scan through active admins and find if anyone has already 6359 // set the global proxy. 6360 final int N = policy.mAdminList.size(); 6361 for (int i = 0; i < N; i++) { 6362 ActiveAdmin ap = policy.mAdminList.get(i); 6363 if (ap.specifiesGlobalProxy) { 6364 // Device admin sets the global proxy 6365 // Return it to the caller. 6366 return ap.info.getComponent(); 6367 } 6368 } 6369 } 6370 // No device admin sets the global proxy. 6371 return null; 6372 } 6373 6374 @Override 6375 public void setRecommendedGlobalProxy(ComponentName who, ProxyInfo proxyInfo) { 6376 synchronized (getLockObject()) { 6377 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6378 } 6379 long token = mInjector.binderClearCallingIdentity(); 6380 try { 6381 ConnectivityManager connectivityManager = (ConnectivityManager) 6382 mContext.getSystemService(Context.CONNECTIVITY_SERVICE); 6383 connectivityManager.setGlobalProxy(proxyInfo); 6384 } finally { 6385 mInjector.binderRestoreCallingIdentity(token); 6386 } 6387 } 6388 6389 private void resetGlobalProxyLocked(DevicePolicyData policy) { 6390 final int N = policy.mAdminList.size(); 6391 for (int i = 0; i < N; i++) { 6392 ActiveAdmin ap = policy.mAdminList.get(i); 6393 if (ap.specifiesGlobalProxy) { 6394 saveGlobalProxyLocked(ap.globalProxySpec, ap.globalProxyExclusionList); 6395 return; 6396 } 6397 } 6398 // No device admins defining global proxies - reset global proxy settings to none 6399 saveGlobalProxyLocked(null, null); 6400 } 6401 6402 private void saveGlobalProxyLocked(String proxySpec, String exclusionList) { 6403 if (exclusionList == null) { 6404 exclusionList = ""; 6405 } 6406 if (proxySpec == null) { 6407 proxySpec = ""; 6408 } 6409 // Remove white spaces 6410 proxySpec = proxySpec.trim(); 6411 String data[] = proxySpec.split(":"); 6412 int proxyPort = 8080; 6413 if (data.length > 1) { 6414 try { 6415 proxyPort = Integer.parseInt(data[1]); 6416 } catch (NumberFormatException e) {} 6417 } 6418 exclusionList = exclusionList.trim(); 6419 6420 ProxyInfo proxyProperties = new ProxyInfo(data[0], proxyPort, exclusionList); 6421 if (!proxyProperties.isValid()) { 6422 Slog.e(LOG_TAG, "Invalid proxy properties, ignoring: " + proxyProperties.toString()); 6423 return; 6424 } 6425 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_HOST, data[0]); 6426 mInjector.settingsGlobalPutInt(Settings.Global.GLOBAL_HTTP_PROXY_PORT, proxyPort); 6427 mInjector.settingsGlobalPutString(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, 6428 exclusionList); 6429 } 6430 6431 /** 6432 * Called by an application that is administering the device to request that the storage system 6433 * be encrypted. Does nothing if the caller is on a secondary user or a managed profile. 6434 * 6435 * @return the new total request status (for all admins), or {@link 6436 * DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED} if called for a non-system user 6437 */ 6438 @Override 6439 public int setStorageEncryption(ComponentName who, boolean encrypt) { 6440 if (!mHasFeature) { 6441 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6442 } 6443 Preconditions.checkNotNull(who, "ComponentName is null"); 6444 final int userHandle = UserHandle.getCallingUserId(); 6445 synchronized (getLockObject()) { 6446 // Check for permissions 6447 // Only system user can set storage encryption 6448 if (userHandle != UserHandle.USER_SYSTEM) { 6449 Slog.w(LOG_TAG, "Only owner/system user is allowed to set storage encryption. User " 6450 + UserHandle.getCallingUserId() + " is not permitted."); 6451 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6452 } 6453 6454 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6455 DeviceAdminInfo.USES_ENCRYPTED_STORAGE); 6456 6457 // Quick exit: If the filesystem does not support encryption, we can exit early. 6458 if (!isEncryptionSupported()) { 6459 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6460 } 6461 6462 // (1) Record the value for the admin so it's sticky 6463 if (ap.encryptionRequested != encrypt) { 6464 ap.encryptionRequested = encrypt; 6465 saveSettingsLocked(userHandle); 6466 } 6467 6468 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 6469 // (2) Compute "max" for all admins 6470 boolean newRequested = false; 6471 final int N = policy.mAdminList.size(); 6472 for (int i = 0; i < N; i++) { 6473 newRequested |= policy.mAdminList.get(i).encryptionRequested; 6474 } 6475 6476 // Notify OS of new request 6477 setEncryptionRequested(newRequested); 6478 6479 // Return the new global request status 6480 return newRequested 6481 ? DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE 6482 : DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 6483 } 6484 } 6485 6486 /** 6487 * Get the current storage encryption request status for a given admin, or aggregate of all 6488 * active admins. 6489 */ 6490 @Override 6491 public boolean getStorageEncryption(ComponentName who, int userHandle) { 6492 if (!mHasFeature) { 6493 return false; 6494 } 6495 enforceFullCrossUsersPermission(userHandle); 6496 synchronized (getLockObject()) { 6497 // Check for permissions if a particular caller is specified 6498 if (who != null) { 6499 // When checking for a single caller, status is based on caller's request 6500 ActiveAdmin ap = getActiveAdminUncheckedLocked(who, userHandle); 6501 return ap != null ? ap.encryptionRequested : false; 6502 } 6503 6504 // If no particular caller is specified, return the aggregate set of requests. 6505 // This is short circuited by returning true on the first hit. 6506 DevicePolicyData policy = getUserData(userHandle); 6507 final int N = policy.mAdminList.size(); 6508 for (int i = 0; i < N; i++) { 6509 if (policy.mAdminList.get(i).encryptionRequested) { 6510 return true; 6511 } 6512 } 6513 return false; 6514 } 6515 } 6516 6517 /** 6518 * Get the current encryption status of the device. 6519 */ 6520 @Override 6521 public int getStorageEncryptionStatus(@Nullable String callerPackage, int userHandle) { 6522 if (!mHasFeature) { 6523 // Ok to return current status. 6524 } 6525 enforceFullCrossUsersPermission(userHandle); 6526 6527 // It's not critical here, but let's make sure the package name is correct, in case 6528 // we start using it for different purposes. 6529 ensureCallerPackage(callerPackage); 6530 6531 final ApplicationInfo ai; 6532 try { 6533 ai = mIPackageManager.getApplicationInfo(callerPackage, 0, userHandle); 6534 } catch (RemoteException e) { 6535 throw new SecurityException(e); 6536 } 6537 6538 boolean legacyApp = false; 6539 if (ai.targetSdkVersion <= Build.VERSION_CODES.M) { 6540 legacyApp = true; 6541 } 6542 6543 final int rawStatus = getEncryptionStatus(); 6544 if ((rawStatus == DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER) && legacyApp) { 6545 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 6546 } 6547 return rawStatus; 6548 } 6549 6550 /** 6551 * Hook to low-levels: This should report if the filesystem supports encrypted storage. 6552 */ 6553 private boolean isEncryptionSupported() { 6554 // Note, this can be implemented as 6555 // return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6556 // But is provided as a separate internal method if there's a faster way to do a 6557 // simple check for supported-or-not. 6558 return getEncryptionStatus() != DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6559 } 6560 6561 /** 6562 * Hook to low-levels: Reporting the current status of encryption. 6563 * @return A value such as {@link DevicePolicyManager#ENCRYPTION_STATUS_UNSUPPORTED}, 6564 * {@link DevicePolicyManager#ENCRYPTION_STATUS_INACTIVE}, 6565 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY}, 6566 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE_PER_USER}, or 6567 * {@link DevicePolicyManager#ENCRYPTION_STATUS_ACTIVE}. 6568 */ 6569 private int getEncryptionStatus() { 6570 if (mInjector.storageManagerIsFileBasedEncryptionEnabled()) { 6571 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER; 6572 } else if (mInjector.storageManagerIsNonDefaultBlockEncrypted()) { 6573 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE; 6574 } else if (mInjector.storageManagerIsEncrypted()) { 6575 return DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY; 6576 } else if (mInjector.storageManagerIsEncryptable()) { 6577 return DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE; 6578 } else { 6579 return DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED; 6580 } 6581 } 6582 6583 /** 6584 * Hook to low-levels: If needed, record the new admin setting for encryption. 6585 */ 6586 private void setEncryptionRequested(boolean encrypt) { 6587 } 6588 6589 /** 6590 * Set whether the screen capture is disabled for the user managed by the specified admin. 6591 */ 6592 @Override 6593 public void setScreenCaptureDisabled(ComponentName who, boolean disabled) { 6594 if (!mHasFeature) { 6595 return; 6596 } 6597 Preconditions.checkNotNull(who, "ComponentName is null"); 6598 final int userHandle = UserHandle.getCallingUserId(); 6599 synchronized (getLockObject()) { 6600 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6601 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6602 if (ap.disableScreenCapture != disabled) { 6603 ap.disableScreenCapture = disabled; 6604 saveSettingsLocked(userHandle); 6605 updateScreenCaptureDisabled(userHandle, disabled); 6606 } 6607 } 6608 } 6609 6610 /** 6611 * Returns whether or not screen capture is disabled for a given admin, or disabled for any 6612 * active admin (if given admin is null). 6613 */ 6614 @Override 6615 public boolean getScreenCaptureDisabled(ComponentName who, int userHandle) { 6616 if (!mHasFeature) { 6617 return false; 6618 } 6619 synchronized (getLockObject()) { 6620 if (who != null) { 6621 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 6622 return (admin != null) ? admin.disableScreenCapture : false; 6623 } 6624 6625 DevicePolicyData policy = getUserData(userHandle); 6626 final int N = policy.mAdminList.size(); 6627 for (int i = 0; i < N; i++) { 6628 ActiveAdmin admin = policy.mAdminList.get(i); 6629 if (admin.disableScreenCapture) { 6630 return true; 6631 } 6632 } 6633 return false; 6634 } 6635 } 6636 6637 private void updateScreenCaptureDisabled(int userHandle, boolean disabled) { 6638 mPolicyCache.setScreenCaptureDisabled(userHandle, disabled); 6639 mHandler.post(new Runnable() { 6640 @Override 6641 public void run() { 6642 try { 6643 mInjector.getIWindowManager().refreshScreenCaptureDisabled(userHandle); 6644 } catch (RemoteException e) { 6645 Log.w(LOG_TAG, "Unable to notify WindowManager.", e); 6646 } 6647 } 6648 }); 6649 } 6650 6651 /** 6652 * Set whether auto time is required by the specified admin (must be device or profile owner). 6653 */ 6654 @Override 6655 public void setAutoTimeRequired(ComponentName who, boolean required) { 6656 if (!mHasFeature) { 6657 return; 6658 } 6659 Preconditions.checkNotNull(who, "ComponentName is null"); 6660 final int userHandle = UserHandle.getCallingUserId(); 6661 synchronized (getLockObject()) { 6662 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 6663 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 6664 if (admin.requireAutoTime != required) { 6665 admin.requireAutoTime = required; 6666 saveSettingsLocked(userHandle); 6667 } 6668 } 6669 6670 // Turn AUTO_TIME on in settings if it is required 6671 if (required) { 6672 long ident = mInjector.binderClearCallingIdentity(); 6673 try { 6674 mInjector.settingsGlobalPutInt(Settings.Global.AUTO_TIME, 1 /* AUTO_TIME on */); 6675 } finally { 6676 mInjector.binderRestoreCallingIdentity(ident); 6677 } 6678 } 6679 } 6680 6681 /** 6682 * Returns whether or not auto time is required by the device owner or any profile owner. 6683 */ 6684 @Override 6685 public boolean getAutoTimeRequired() { 6686 if (!mHasFeature) { 6687 return false; 6688 } 6689 synchronized (getLockObject()) { 6690 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 6691 if (deviceOwner != null && deviceOwner.requireAutoTime) { 6692 // If the device owner enforces auto time, we don't need to check the PO's 6693 return true; 6694 } 6695 6696 // Now check to see if any profile owner on any user enforces auto time 6697 for (Integer userId : mOwners.getProfileOwnerKeys()) { 6698 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 6699 if (profileOwner != null && profileOwner.requireAutoTime) { 6700 return true; 6701 } 6702 } 6703 6704 return false; 6705 } 6706 } 6707 6708 @Override 6709 public void setForceEphemeralUsers(ComponentName who, boolean forceEphemeralUsers) { 6710 if (!mHasFeature) { 6711 return; 6712 } 6713 Preconditions.checkNotNull(who, "ComponentName is null"); 6714 // Allow setting this policy to true only if there is a split system user. 6715 if (forceEphemeralUsers && !mInjector.userManagerIsSplitSystemUser()) { 6716 throw new UnsupportedOperationException( 6717 "Cannot force ephemeral users on systems without split system user."); 6718 } 6719 boolean removeAllUsers = false; 6720 synchronized (getLockObject()) { 6721 final ActiveAdmin deviceOwner = 6722 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6723 if (deviceOwner.forceEphemeralUsers != forceEphemeralUsers) { 6724 deviceOwner.forceEphemeralUsers = forceEphemeralUsers; 6725 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 6726 mUserManagerInternal.setForceEphemeralUsers(forceEphemeralUsers); 6727 removeAllUsers = forceEphemeralUsers; 6728 } 6729 } 6730 if (removeAllUsers) { 6731 long identitity = mInjector.binderClearCallingIdentity(); 6732 try { 6733 mUserManagerInternal.removeAllUsers(); 6734 } finally { 6735 mInjector.binderRestoreCallingIdentity(identitity); 6736 } 6737 } 6738 } 6739 6740 @Override 6741 public boolean getForceEphemeralUsers(ComponentName who) { 6742 if (!mHasFeature) { 6743 return false; 6744 } 6745 Preconditions.checkNotNull(who, "ComponentName is null"); 6746 synchronized (getLockObject()) { 6747 final ActiveAdmin deviceOwner = 6748 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6749 return deviceOwner.forceEphemeralUsers; 6750 } 6751 } 6752 6753 private void ensureDeviceOwnerAndAllUsersAffiliated(ComponentName who) throws SecurityException { 6754 synchronized (getLockObject()) { 6755 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 6756 if (!areAllUsersAffiliatedWithDeviceLocked()) { 6757 throw new SecurityException("Not all users are affiliated."); 6758 } 6759 } 6760 } 6761 6762 @Override 6763 public boolean requestBugreport(ComponentName who) { 6764 if (!mHasFeature) { 6765 return false; 6766 } 6767 Preconditions.checkNotNull(who, "ComponentName is null"); 6768 6769 // TODO: If an unaffiliated user is removed, the admin will be able to request a bugreport 6770 // which could still contain data related to that user. Should we disallow that, e.g. until 6771 // next boot? Might not be needed given that this still requires user consent. 6772 ensureDeviceOwnerAndAllUsersAffiliated(who); 6773 6774 if (mRemoteBugreportServiceIsActive.get() 6775 || (getDeviceOwnerRemoteBugreportUri() != null)) { 6776 Slog.d(LOG_TAG, "Remote bugreport wasn't started because there's already one running."); 6777 return false; 6778 } 6779 6780 final long currentTime = System.currentTimeMillis(); 6781 synchronized (getLockObject()) { 6782 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 6783 if (currentTime > policyData.mLastBugReportRequestTime) { 6784 policyData.mLastBugReportRequestTime = currentTime; 6785 saveSettingsLocked(UserHandle.USER_SYSTEM); 6786 } 6787 } 6788 6789 final long callingIdentity = mInjector.binderClearCallingIdentity(); 6790 try { 6791 mInjector.getIActivityManager().requestBugReport( 6792 ActivityManager.BUGREPORT_OPTION_REMOTE); 6793 6794 mRemoteBugreportServiceIsActive.set(true); 6795 mRemoteBugreportSharingAccepted.set(false); 6796 registerRemoteBugreportReceivers(); 6797 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, 6798 RemoteBugreportUtils.NOTIFICATION_ID, 6799 RemoteBugreportUtils.buildNotification(mContext, 6800 DevicePolicyManager.NOTIFICATION_BUGREPORT_STARTED), UserHandle.ALL); 6801 mHandler.postDelayed(mRemoteBugreportTimeoutRunnable, 6802 RemoteBugreportUtils.REMOTE_BUGREPORT_TIMEOUT_MILLIS); 6803 return true; 6804 } catch (RemoteException re) { 6805 // should never happen 6806 Slog.e(LOG_TAG, "Failed to make remote calls to start bugreportremote service", re); 6807 return false; 6808 } finally { 6809 mInjector.binderRestoreCallingIdentity(callingIdentity); 6810 } 6811 } 6812 6813 void sendDeviceOwnerCommand(String action, Bundle extras) { 6814 int deviceOwnerUserId; 6815 ComponentName deviceOwnerComponent; 6816 synchronized (getLockObject()) { 6817 deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 6818 deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 6819 } 6820 sendActiveAdminCommand(action, extras, deviceOwnerUserId, 6821 deviceOwnerComponent); 6822 } 6823 6824 private void sendProfileOwnerCommand(String action, Bundle extras, int userHandle) { 6825 sendActiveAdminCommand(action, extras, userHandle, 6826 mOwners.getProfileOwnerComponent(userHandle)); 6827 } 6828 6829 private void sendActiveAdminCommand(String action, Bundle extras, 6830 int userHandle, ComponentName receiverComponent) { 6831 final Intent intent = new Intent(action); 6832 intent.setComponent(receiverComponent); 6833 if (extras != null) { 6834 intent.putExtras(extras); 6835 } 6836 mContext.sendBroadcastAsUser(intent, UserHandle.of(userHandle)); 6837 } 6838 6839 private void sendOwnerChangedBroadcast(String broadcast, int userId) { 6840 final Intent intent = new Intent(broadcast) 6841 .addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND); 6842 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 6843 } 6844 6845 private String getDeviceOwnerRemoteBugreportUri() { 6846 synchronized (getLockObject()) { 6847 return mOwners.getDeviceOwnerRemoteBugreportUri(); 6848 } 6849 } 6850 6851 private void setDeviceOwnerRemoteBugreportUriAndHash(String bugreportUri, 6852 String bugreportHash) { 6853 synchronized (getLockObject()) { 6854 mOwners.setDeviceOwnerRemoteBugreportUriAndHash(bugreportUri, bugreportHash); 6855 } 6856 } 6857 6858 private void registerRemoteBugreportReceivers() { 6859 try { 6860 IntentFilter filterFinished = new IntentFilter( 6861 DevicePolicyManager.ACTION_REMOTE_BUGREPORT_DISPATCH, 6862 RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6863 mContext.registerReceiver(mRemoteBugreportFinishedReceiver, filterFinished); 6864 } catch (IntentFilter.MalformedMimeTypeException e) { 6865 // should never happen, as setting a constant 6866 Slog.w(LOG_TAG, "Failed to set type " + RemoteBugreportUtils.BUGREPORT_MIMETYPE, e); 6867 } 6868 IntentFilter filterConsent = new IntentFilter(); 6869 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_DECLINED); 6870 filterConsent.addAction(DevicePolicyManager.ACTION_BUGREPORT_SHARING_ACCEPTED); 6871 mContext.registerReceiver(mRemoteBugreportConsentReceiver, filterConsent); 6872 } 6873 6874 private void onBugreportFinished(Intent intent) { 6875 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6876 mRemoteBugreportServiceIsActive.set(false); 6877 Uri bugreportUri = intent.getData(); 6878 String bugreportUriString = null; 6879 if (bugreportUri != null) { 6880 bugreportUriString = bugreportUri.toString(); 6881 } 6882 String bugreportHash = intent.getStringExtra( 6883 DevicePolicyManager.EXTRA_REMOTE_BUGREPORT_HASH); 6884 if (mRemoteBugreportSharingAccepted.get()) { 6885 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6886 mInjector.getNotificationManager().cancel(LOG_TAG, 6887 RemoteBugreportUtils.NOTIFICATION_ID); 6888 } else { 6889 setDeviceOwnerRemoteBugreportUriAndHash(bugreportUriString, bugreportHash); 6890 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6891 RemoteBugreportUtils.buildNotification(mContext, 6892 DevicePolicyManager.NOTIFICATION_BUGREPORT_FINISHED_NOT_ACCEPTED), 6893 UserHandle.ALL); 6894 } 6895 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6896 } 6897 6898 private void onBugreportFailed() { 6899 mRemoteBugreportServiceIsActive.set(false); 6900 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6901 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6902 mRemoteBugreportSharingAccepted.set(false); 6903 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6904 mInjector.getNotificationManager().cancel(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID); 6905 Bundle extras = new Bundle(); 6906 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6907 DeviceAdminReceiver.BUGREPORT_FAILURE_FAILED_COMPLETING); 6908 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6909 mContext.unregisterReceiver(mRemoteBugreportConsentReceiver); 6910 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6911 } 6912 6913 private void onBugreportSharingAccepted() { 6914 mRemoteBugreportSharingAccepted.set(true); 6915 String bugreportUriString = null; 6916 String bugreportHash = null; 6917 synchronized (getLockObject()) { 6918 bugreportUriString = getDeviceOwnerRemoteBugreportUri(); 6919 bugreportHash = mOwners.getDeviceOwnerRemoteBugreportHash(); 6920 } 6921 if (bugreportUriString != null) { 6922 shareBugreportWithDeviceOwnerIfExists(bugreportUriString, bugreportHash); 6923 } else if (mRemoteBugreportServiceIsActive.get()) { 6924 mInjector.getNotificationManager().notifyAsUser(LOG_TAG, RemoteBugreportUtils.NOTIFICATION_ID, 6925 RemoteBugreportUtils.buildNotification(mContext, 6926 DevicePolicyManager.NOTIFICATION_BUGREPORT_ACCEPTED_NOT_FINISHED), 6927 UserHandle.ALL); 6928 } 6929 } 6930 6931 private void onBugreportSharingDeclined() { 6932 if (mRemoteBugreportServiceIsActive.get()) { 6933 mInjector.systemPropertiesSet(RemoteBugreportUtils.CTL_STOP, 6934 RemoteBugreportUtils.REMOTE_BUGREPORT_SERVICE); 6935 mRemoteBugreportServiceIsActive.set(false); 6936 mHandler.removeCallbacks(mRemoteBugreportTimeoutRunnable); 6937 mContext.unregisterReceiver(mRemoteBugreportFinishedReceiver); 6938 } 6939 mRemoteBugreportSharingAccepted.set(false); 6940 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6941 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_SHARING_DECLINED, null); 6942 } 6943 6944 private void shareBugreportWithDeviceOwnerIfExists(String bugreportUriString, 6945 String bugreportHash) { 6946 ParcelFileDescriptor pfd = null; 6947 try { 6948 if (bugreportUriString == null) { 6949 throw new FileNotFoundException(); 6950 } 6951 Uri bugreportUri = Uri.parse(bugreportUriString); 6952 pfd = mContext.getContentResolver().openFileDescriptor(bugreportUri, "r"); 6953 6954 synchronized (getLockObject()) { 6955 Intent intent = new Intent(DeviceAdminReceiver.ACTION_BUGREPORT_SHARE); 6956 intent.setComponent(mOwners.getDeviceOwnerComponent()); 6957 intent.setDataAndType(bugreportUri, RemoteBugreportUtils.BUGREPORT_MIMETYPE); 6958 intent.putExtra(DeviceAdminReceiver.EXTRA_BUGREPORT_HASH, bugreportHash); 6959 intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); 6960 6961 LocalServices.getService(ActivityManagerInternal.class) 6962 .grantUriPermissionFromIntent(Process.SHELL_UID, 6963 mOwners.getDeviceOwnerComponent().getPackageName(), 6964 intent, mOwners.getDeviceOwnerUserId()); 6965 mContext.sendBroadcastAsUser(intent, UserHandle.of(mOwners.getDeviceOwnerUserId())); 6966 } 6967 } catch (FileNotFoundException e) { 6968 Bundle extras = new Bundle(); 6969 extras.putInt(DeviceAdminReceiver.EXTRA_BUGREPORT_FAILURE_REASON, 6970 DeviceAdminReceiver.BUGREPORT_FAILURE_FILE_NO_LONGER_AVAILABLE); 6971 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_BUGREPORT_FAILED, extras); 6972 } finally { 6973 try { 6974 if (pfd != null) { 6975 pfd.close(); 6976 } 6977 } catch (IOException ex) { 6978 // Ignore 6979 } 6980 mRemoteBugreportSharingAccepted.set(false); 6981 setDeviceOwnerRemoteBugreportUriAndHash(null, null); 6982 } 6983 } 6984 6985 /** 6986 * Disables all device cameras according to the specified admin. 6987 */ 6988 @Override 6989 public void setCameraDisabled(ComponentName who, boolean disabled) { 6990 if (!mHasFeature) { 6991 return; 6992 } 6993 Preconditions.checkNotNull(who, "ComponentName is null"); 6994 final int userHandle = mInjector.userHandleGetCallingUserId(); 6995 synchronized (getLockObject()) { 6996 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 6997 DeviceAdminInfo.USES_POLICY_DISABLE_CAMERA); 6998 if (ap.disableCamera != disabled) { 6999 ap.disableCamera = disabled; 7000 saveSettingsLocked(userHandle); 7001 } 7002 } 7003 // Tell the user manager that the restrictions have changed. 7004 pushUserRestrictions(userHandle); 7005 } 7006 7007 /** 7008 * Gets whether or not all device cameras are disabled for a given admin, or disabled for any 7009 * active admins. 7010 */ 7011 @Override 7012 public boolean getCameraDisabled(ComponentName who, int userHandle) { 7013 return getCameraDisabled(who, userHandle, /* mergeDeviceOwnerRestriction= */ true); 7014 } 7015 7016 private boolean getCameraDisabled(ComponentName who, int userHandle, 7017 boolean mergeDeviceOwnerRestriction) { 7018 if (!mHasFeature) { 7019 return false; 7020 } 7021 synchronized (getLockObject()) { 7022 if (who != null) { 7023 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7024 return (admin != null) ? admin.disableCamera : false; 7025 } 7026 // First, see if DO has set it. If so, it's device-wide. 7027 if (mergeDeviceOwnerRestriction) { 7028 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 7029 if (deviceOwner != null && deviceOwner.disableCamera) { 7030 return true; 7031 } 7032 } 7033 7034 // Then check each device admin on the user. 7035 DevicePolicyData policy = getUserData(userHandle); 7036 // Determine whether or not the device camera is disabled for any active admins. 7037 final int N = policy.mAdminList.size(); 7038 for (int i = 0; i < N; i++) { 7039 ActiveAdmin admin = policy.mAdminList.get(i); 7040 if (admin.disableCamera) { 7041 return true; 7042 } 7043 } 7044 return false; 7045 } 7046 } 7047 7048 @Override 7049 public void setKeyguardDisabledFeatures(ComponentName who, int which, boolean parent) { 7050 if (!mHasFeature) { 7051 return; 7052 } 7053 Preconditions.checkNotNull(who, "ComponentName is null"); 7054 final int userHandle = mInjector.userHandleGetCallingUserId(); 7055 if (isManagedProfile(userHandle)) { 7056 if (parent) { 7057 which = which & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER; 7058 } else { 7059 which = which & PROFILE_KEYGUARD_FEATURES; 7060 } 7061 } 7062 synchronized (getLockObject()) { 7063 ActiveAdmin ap = getActiveAdminForCallerLocked( 7064 who, DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 7065 if (ap.disabledKeyguardFeatures != which) { 7066 ap.disabledKeyguardFeatures = which; 7067 saveSettingsLocked(userHandle); 7068 } 7069 } 7070 if (SecurityLog.isLoggingEnabled()) { 7071 final int affectedUserId = parent ? getProfileParentId(userHandle) : userHandle; 7072 SecurityLog.writeEvent(SecurityLog.TAG_KEYGUARD_DISABLED_FEATURES_SET, 7073 who.getPackageName(), userHandle, affectedUserId, which); 7074 } 7075 } 7076 7077 /** 7078 * Gets the disabled state for features in keyguard for the given admin, 7079 * or the aggregate of all active admins if who is null. 7080 */ 7081 @Override 7082 public int getKeyguardDisabledFeatures(ComponentName who, int userHandle, boolean parent) { 7083 if (!mHasFeature) { 7084 return 0; 7085 } 7086 enforceFullCrossUsersPermission(userHandle); 7087 final long ident = mInjector.binderClearCallingIdentity(); 7088 try { 7089 synchronized (getLockObject()) { 7090 if (who != null) { 7091 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle, parent); 7092 return (admin != null) ? admin.disabledKeyguardFeatures : 0; 7093 } 7094 7095 final List<ActiveAdmin> admins; 7096 if (!parent && isManagedProfile(userHandle)) { 7097 // If we are being asked about a managed profile, just return keyguard features 7098 // disabled by admins in the profile. 7099 admins = getUserDataUnchecked(userHandle).mAdminList; 7100 } else { 7101 // Otherwise return those set by admins in the user and its profiles. 7102 admins = getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 7103 } 7104 7105 int which = DevicePolicyManager.KEYGUARD_DISABLE_FEATURES_NONE; 7106 final int N = admins.size(); 7107 for (int i = 0; i < N; i++) { 7108 ActiveAdmin admin = admins.get(i); 7109 int userId = admin.getUserHandle().getIdentifier(); 7110 boolean isRequestedUser = !parent && (userId == userHandle); 7111 if (isRequestedUser || !isManagedProfile(userId)) { 7112 // If we are being asked explicitly about this user 7113 // return all disabled features even if its a managed profile. 7114 which |= admin.disabledKeyguardFeatures; 7115 } else { 7116 // Otherwise a managed profile is only allowed to disable 7117 // some features on the parent user. 7118 which |= (admin.disabledKeyguardFeatures 7119 & PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER); 7120 } 7121 } 7122 return which; 7123 } 7124 } finally { 7125 mInjector.binderRestoreCallingIdentity(ident); 7126 } 7127 } 7128 7129 @Override 7130 public void setKeepUninstalledPackages(ComponentName who, String callerPackage, 7131 List<String> packageList) { 7132 if (!mHasFeature) { 7133 return; 7134 } 7135 Preconditions.checkNotNull(packageList, "packageList is null"); 7136 final int userHandle = UserHandle.getCallingUserId(); 7137 synchronized (getLockObject()) { 7138 // Ensure the caller is a DO or a keep uninstalled packages delegate. 7139 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 7140 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 7141 // Get the device owner 7142 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 7143 // Set list of packages to be kept even if uninstalled. 7144 deviceOwner.keepUninstalledPackages = packageList; 7145 // Save settings. 7146 saveSettingsLocked(userHandle); 7147 // Notify package manager. 7148 mInjector.getPackageManagerInternal().setKeepUninstalledPackages(packageList); 7149 } 7150 } 7151 7152 @Override 7153 public List<String> getKeepUninstalledPackages(ComponentName who, String callerPackage) { 7154 if (!mHasFeature) { 7155 return null; 7156 } 7157 // TODO In split system user mode, allow apps on user 0 to query the list 7158 synchronized (getLockObject()) { 7159 // Ensure the caller is a DO or a keep uninstalled packages delegate. 7160 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 7161 DELEGATION_KEEP_UNINSTALLED_PACKAGES); 7162 return getKeepUninstalledPackagesLocked(); 7163 } 7164 } 7165 7166 private List<String> getKeepUninstalledPackagesLocked() { 7167 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 7168 return (deviceOwner != null) ? deviceOwner.keepUninstalledPackages : null; 7169 } 7170 7171 @Override 7172 public boolean setDeviceOwner(ComponentName admin, String ownerName, int userId) { 7173 if (!mHasFeature) { 7174 return false; 7175 } 7176 if (admin == null 7177 || !isPackageInstalledForUser(admin.getPackageName(), userId)) { 7178 throw new IllegalArgumentException("Invalid component " + admin 7179 + " for device owner"); 7180 } 7181 final boolean hasIncompatibleAccountsOrNonAdb = 7182 hasIncompatibleAccountsOrNonAdbNoLock(userId, admin); 7183 synchronized (getLockObject()) { 7184 enforceCanSetDeviceOwnerLocked(admin, userId, hasIncompatibleAccountsOrNonAdb); 7185 final ActiveAdmin activeAdmin = getActiveAdminUncheckedLocked(admin, userId); 7186 if (activeAdmin == null 7187 || getUserData(userId).mRemovingAdmins.contains(admin)) { 7188 throw new IllegalArgumentException("Not active admin: " + admin); 7189 } 7190 7191 // Shutting down backup manager service permanently. 7192 long ident = mInjector.binderClearCallingIdentity(); 7193 try { 7194 if (mInjector.getIBackupManager() != null) { 7195 mInjector.getIBackupManager() 7196 .setBackupServiceActive(UserHandle.USER_SYSTEM, false); 7197 } 7198 } catch (RemoteException e) { 7199 throw new IllegalStateException("Failed deactivating backup service.", e); 7200 } finally { 7201 mInjector.binderRestoreCallingIdentity(ident); 7202 } 7203 7204 if (isAdb()) { 7205 // Log device owner provisioning was started using adb. 7206 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_DEVICE_OWNER); 7207 } 7208 7209 mOwners.setDeviceOwner(admin, ownerName, userId); 7210 mOwners.writeDeviceOwner(); 7211 updateDeviceOwnerLocked(); 7212 setDeviceOwnerSystemPropertyLocked(); 7213 7214 final Set<String> restrictions = 7215 UserRestrictionsUtils.getDefaultEnabledForDeviceOwner(); 7216 if (!restrictions.isEmpty()) { 7217 for (String restriction : restrictions) { 7218 activeAdmin.ensureUserRestrictions().putBoolean(restriction, true); 7219 } 7220 activeAdmin.defaultEnabledRestrictionsAlreadySet.addAll(restrictions); 7221 Slog.i(LOG_TAG, "Enabled the following restrictions by default: " + restrictions); 7222 7223 saveUserRestrictionsLocked(userId); 7224 } 7225 7226 ident = mInjector.binderClearCallingIdentity(); 7227 try { 7228 // TODO Send to system too? 7229 sendOwnerChangedBroadcast(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED, userId); 7230 } finally { 7231 mInjector.binderRestoreCallingIdentity(ident); 7232 } 7233 mDeviceAdminServiceController.startServiceForOwner( 7234 admin.getPackageName(), userId, "set-device-owner"); 7235 7236 Slog.i(LOG_TAG, "Device owner set: " + admin + " on user " + userId); 7237 return true; 7238 } 7239 } 7240 7241 @Override 7242 public boolean hasDeviceOwner() { 7243 enforceDeviceOwnerOrManageUsers(); 7244 return mOwners.hasDeviceOwner(); 7245 } 7246 7247 boolean isDeviceOwner(ActiveAdmin admin) { 7248 return isDeviceOwner(admin.info.getComponent(), admin.getUserHandle().getIdentifier()); 7249 } 7250 7251 public boolean isDeviceOwner(ComponentName who, int userId) { 7252 synchronized (getLockObject()) { 7253 return mOwners.hasDeviceOwner() 7254 && mOwners.getDeviceOwnerUserId() == userId 7255 && mOwners.getDeviceOwnerComponent().equals(who); 7256 } 7257 } 7258 7259 private boolean isDeviceOwnerPackage(String packageName, int userId) { 7260 synchronized (getLockObject()) { 7261 return mOwners.hasDeviceOwner() 7262 && mOwners.getDeviceOwnerUserId() == userId 7263 && mOwners.getDeviceOwnerPackageName().equals(packageName); 7264 } 7265 } 7266 7267 private boolean isProfileOwnerPackage(String packageName, int userId) { 7268 synchronized (getLockObject()) { 7269 return mOwners.hasProfileOwner(userId) 7270 && mOwners.getProfileOwnerPackage(userId).equals(packageName); 7271 } 7272 } 7273 7274 public boolean isProfileOwner(ComponentName who, int userId) { 7275 final ComponentName profileOwner = getProfileOwner(userId); 7276 return who != null && who.equals(profileOwner); 7277 } 7278 7279 @Override 7280 public ComponentName getDeviceOwnerComponent(boolean callingUserOnly) { 7281 if (!mHasFeature) { 7282 return null; 7283 } 7284 if (!callingUserOnly) { 7285 enforceManageUsers(); 7286 } 7287 synchronized (getLockObject()) { 7288 if (!mOwners.hasDeviceOwner()) { 7289 return null; 7290 } 7291 if (callingUserOnly && mInjector.userHandleGetCallingUserId() != 7292 mOwners.getDeviceOwnerUserId()) { 7293 return null; 7294 } 7295 return mOwners.getDeviceOwnerComponent(); 7296 } 7297 } 7298 7299 @Override 7300 public int getDeviceOwnerUserId() { 7301 if (!mHasFeature) { 7302 return UserHandle.USER_NULL; 7303 } 7304 enforceManageUsers(); 7305 synchronized (getLockObject()) { 7306 return mOwners.hasDeviceOwner() ? mOwners.getDeviceOwnerUserId() : UserHandle.USER_NULL; 7307 } 7308 } 7309 7310 /** 7311 * Returns the "name" of the device owner. It'll work for non-DO users too, but requires 7312 * MANAGE_USERS. 7313 */ 7314 @Override 7315 public String getDeviceOwnerName() { 7316 if (!mHasFeature) { 7317 return null; 7318 } 7319 enforceManageUsers(); 7320 synchronized (getLockObject()) { 7321 if (!mOwners.hasDeviceOwner()) { 7322 return null; 7323 } 7324 // TODO This totally ignores the name passed to setDeviceOwner (change for b/20679292) 7325 // Should setDeviceOwner/ProfileOwner still take a name? 7326 String deviceOwnerPackage = mOwners.getDeviceOwnerPackageName(); 7327 return getApplicationLabel(deviceOwnerPackage, UserHandle.USER_SYSTEM); 7328 } 7329 } 7330 7331 /** Returns the active device owner or {@code null} if there is no device owner. */ 7332 @VisibleForTesting 7333 ActiveAdmin getDeviceOwnerAdminLocked() { 7334 ensureLocked(); 7335 ComponentName component = mOwners.getDeviceOwnerComponent(); 7336 if (component == null) { 7337 return null; 7338 } 7339 7340 DevicePolicyData policy = getUserData(mOwners.getDeviceOwnerUserId()); 7341 final int n = policy.mAdminList.size(); 7342 for (int i = 0; i < n; i++) { 7343 ActiveAdmin admin = policy.mAdminList.get(i); 7344 if (component.equals(admin.info.getComponent())) { 7345 return admin; 7346 } 7347 } 7348 Slog.wtf(LOG_TAG, "Active admin for device owner not found. component=" + component); 7349 return null; 7350 } 7351 7352 @Override 7353 public void clearDeviceOwner(String packageName) { 7354 Preconditions.checkNotNull(packageName, "packageName is null"); 7355 final int callingUid = mInjector.binderGetCallingUid(); 7356 try { 7357 int uid = mInjector.getPackageManager().getPackageUidAsUser(packageName, 7358 UserHandle.getUserId(callingUid)); 7359 if (uid != callingUid) { 7360 throw new SecurityException("Invalid packageName"); 7361 } 7362 } catch (NameNotFoundException e) { 7363 throw new SecurityException(e); 7364 } 7365 synchronized (getLockObject()) { 7366 final ComponentName deviceOwnerComponent = mOwners.getDeviceOwnerComponent(); 7367 final int deviceOwnerUserId = mOwners.getDeviceOwnerUserId(); 7368 if (!mOwners.hasDeviceOwner() 7369 || !deviceOwnerComponent.getPackageName().equals(packageName) 7370 || (deviceOwnerUserId != UserHandle.getUserId(callingUid))) { 7371 throw new SecurityException( 7372 "clearDeviceOwner can only be called by the device owner"); 7373 } 7374 enforceUserUnlocked(deviceOwnerUserId); 7375 7376 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 7377 long ident = mInjector.binderClearCallingIdentity(); 7378 try { 7379 clearDeviceOwnerLocked(admin, deviceOwnerUserId); 7380 removeActiveAdminLocked(deviceOwnerComponent, deviceOwnerUserId); 7381 sendOwnerChangedBroadcast(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED, 7382 deviceOwnerUserId); 7383 } finally { 7384 mInjector.binderRestoreCallingIdentity(ident); 7385 } 7386 Slog.i(LOG_TAG, "Device owner removed: " + deviceOwnerComponent); 7387 } 7388 } 7389 7390 private void clearOverrideApnUnchecked() { 7391 // Disable Override APNs and remove them from database. 7392 setOverrideApnsEnabledUnchecked(false); 7393 final List<ApnSetting> apns = getOverrideApnsUnchecked(); 7394 for (int i = 0; i < apns.size(); i ++) { 7395 removeOverrideApnUnchecked(apns.get(i).getId()); 7396 } 7397 } 7398 7399 private void clearDeviceOwnerLocked(ActiveAdmin admin, int userId) { 7400 mDeviceAdminServiceController.stopServiceForOwner(userId, "clear-device-owner"); 7401 7402 if (admin != null) { 7403 admin.disableCamera = false; 7404 admin.userRestrictions = null; 7405 admin.defaultEnabledRestrictionsAlreadySet.clear(); 7406 admin.forceEphemeralUsers = false; 7407 admin.isNetworkLoggingEnabled = false; 7408 mUserManagerInternal.setForceEphemeralUsers(admin.forceEphemeralUsers); 7409 } 7410 final DevicePolicyData policyData = getUserData(userId); 7411 policyData.mCurrentInputMethodSet = false; 7412 saveSettingsLocked(userId); 7413 final DevicePolicyData systemPolicyData = getUserData(UserHandle.USER_SYSTEM); 7414 systemPolicyData.mLastSecurityLogRetrievalTime = -1; 7415 systemPolicyData.mLastBugReportRequestTime = -1; 7416 systemPolicyData.mLastNetworkLogsRetrievalTime = -1; 7417 saveSettingsLocked(UserHandle.USER_SYSTEM); 7418 clearUserPoliciesLocked(userId); 7419 clearOverrideApnUnchecked(); 7420 7421 mOwners.clearDeviceOwner(); 7422 mOwners.writeDeviceOwner(); 7423 updateDeviceOwnerLocked(); 7424 7425 clearDeviceOwnerUserRestrictionLocked(UserHandle.of(userId)); 7426 mInjector.securityLogSetLoggingEnabledProperty(false); 7427 mSecurityLogMonitor.stop(); 7428 setNetworkLoggingActiveInternal(false); 7429 deleteTransferOwnershipBundleLocked(userId); 7430 7431 try { 7432 if (mInjector.getIBackupManager() != null) { 7433 // Reactivate backup service. 7434 mInjector.getIBackupManager().setBackupServiceActive(UserHandle.USER_SYSTEM, true); 7435 } 7436 } catch (RemoteException e) { 7437 throw new IllegalStateException("Failed reactivating backup service.", e); 7438 } 7439 } 7440 7441 @Override 7442 public boolean setProfileOwner(ComponentName who, String ownerName, int userHandle) { 7443 if (!mHasFeature) { 7444 return false; 7445 } 7446 if (who == null 7447 || !isPackageInstalledForUser(who.getPackageName(), userHandle)) { 7448 throw new IllegalArgumentException("Component " + who 7449 + " not installed for userId:" + userHandle); 7450 } 7451 final boolean hasIncompatibleAccountsOrNonAdb = 7452 hasIncompatibleAccountsOrNonAdbNoLock(userHandle, who); 7453 synchronized (getLockObject()) { 7454 enforceCanSetProfileOwnerLocked(who, userHandle, hasIncompatibleAccountsOrNonAdb); 7455 7456 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 7457 if (admin == null || getUserData(userHandle).mRemovingAdmins.contains(who)) { 7458 throw new IllegalArgumentException("Not active admin: " + who); 7459 } 7460 7461 if (isAdb()) { 7462 // Log profile owner provisioning was started using adb. 7463 MetricsLogger.action(mContext, PROVISIONING_ENTRY_POINT_ADB, LOG_TAG_PROFILE_OWNER); 7464 } 7465 7466 mOwners.setProfileOwner(who, ownerName, userHandle); 7467 mOwners.writeProfileOwner(userHandle); 7468 Slog.i(LOG_TAG, "Profile owner set: " + who + " on user " + userHandle); 7469 7470 final long id = mInjector.binderClearCallingIdentity(); 7471 try { 7472 if (mUserManager.isManagedProfile(userHandle)) { 7473 maybeSetDefaultRestrictionsForAdminLocked(userHandle, admin, 7474 UserRestrictionsUtils.getDefaultEnabledForManagedProfiles()); 7475 ensureUnknownSourcesRestrictionForProfileOwnerLocked(userHandle, admin, 7476 true /* newOwner */); 7477 } 7478 sendOwnerChangedBroadcast(DevicePolicyManager.ACTION_PROFILE_OWNER_CHANGED, 7479 userHandle); 7480 } finally { 7481 mInjector.binderRestoreCallingIdentity(id); 7482 } 7483 mDeviceAdminServiceController.startServiceForOwner( 7484 who.getPackageName(), userHandle, "set-profile-owner"); 7485 return true; 7486 } 7487 } 7488 7489 @Override 7490 public void clearProfileOwner(ComponentName who) { 7491 if (!mHasFeature) { 7492 return; 7493 } 7494 Preconditions.checkNotNull(who, "ComponentName is null"); 7495 7496 final int userId = mInjector.userHandleGetCallingUserId(); 7497 enforceNotManagedProfile(userId, "clear profile owner"); 7498 enforceUserUnlocked(userId); 7499 synchronized (getLockObject()) { 7500 // Check if this is the profile owner who is calling 7501 final ActiveAdmin admin = 7502 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7503 7504 final long ident = mInjector.binderClearCallingIdentity(); 7505 try { 7506 clearProfileOwnerLocked(admin, userId); 7507 removeActiveAdminLocked(who, userId); 7508 sendOwnerChangedBroadcast(DevicePolicyManager.ACTION_PROFILE_OWNER_CHANGED, 7509 userId); 7510 } finally { 7511 mInjector.binderRestoreCallingIdentity(ident); 7512 } 7513 Slog.i(LOG_TAG, "Profile owner " + who + " removed from user " + userId); 7514 } 7515 } 7516 7517 public void clearProfileOwnerLocked(ActiveAdmin admin, int userId) { 7518 mDeviceAdminServiceController.stopServiceForOwner(userId, "clear-profile-owner"); 7519 7520 if (admin != null) { 7521 admin.disableCamera = false; 7522 admin.userRestrictions = null; 7523 admin.defaultEnabledRestrictionsAlreadySet.clear(); 7524 } 7525 final DevicePolicyData policyData = getUserData(userId); 7526 policyData.mCurrentInputMethodSet = false; 7527 policyData.mOwnerInstalledCaCerts.clear(); 7528 saveSettingsLocked(userId); 7529 clearUserPoliciesLocked(userId); 7530 mOwners.removeProfileOwner(userId); 7531 mOwners.writeProfileOwner(userId); 7532 deleteTransferOwnershipBundleLocked(userId); 7533 } 7534 7535 @Override 7536 public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) { 7537 Preconditions.checkNotNull(who, "ComponentName is null"); 7538 if (!mHasFeature) { 7539 return; 7540 } 7541 7542 synchronized (getLockObject()) { 7543 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 7544 long token = mInjector.binderClearCallingIdentity(); 7545 try { 7546 mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null); 7547 } finally { 7548 mInjector.binderRestoreCallingIdentity(token); 7549 } 7550 } 7551 } 7552 7553 @Override 7554 public CharSequence getDeviceOwnerLockScreenInfo() { 7555 return mLockPatternUtils.getDeviceOwnerInfo(); 7556 } 7557 7558 private void clearUserPoliciesLocked(int userId) { 7559 // Reset some of the user-specific policies. 7560 final DevicePolicyData policy = getUserData(userId); 7561 policy.mPermissionPolicy = DevicePolicyManager.PERMISSION_POLICY_PROMPT; 7562 // Clear delegations. 7563 policy.mDelegationMap.clear(); 7564 policy.mStatusBarDisabled = false; 7565 policy.mUserProvisioningState = DevicePolicyManager.STATE_USER_UNMANAGED; 7566 policy.mAffiliationIds.clear(); 7567 policy.mLockTaskPackages.clear(); 7568 updateLockTaskPackagesLocked(policy.mLockTaskPackages, userId); 7569 policy.mLockTaskFeatures = DevicePolicyManager.LOCK_TASK_FEATURE_NONE; 7570 saveSettingsLocked(userId); 7571 7572 try { 7573 mIPackageManager.updatePermissionFlagsForAllApps( 7574 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 7575 0 /* flagValues */, userId); 7576 pushUserRestrictions(userId); 7577 } catch (RemoteException re) { 7578 // Shouldn't happen. 7579 } 7580 } 7581 7582 @Override 7583 public boolean hasUserSetupCompleted() { 7584 return hasUserSetupCompleted(UserHandle.getCallingUserId()); 7585 } 7586 7587 // This checks only if the Setup Wizard has run. Since Wear devices pair before 7588 // completing Setup Wizard, and pairing involves transferring user data, calling 7589 // logic may want to check mIsWatch or mPaired in addition to hasUserSetupCompleted(). 7590 private boolean hasUserSetupCompleted(int userHandle) { 7591 if (!mHasFeature) { 7592 return true; 7593 } 7594 return getUserData(userHandle).mUserSetupComplete; 7595 } 7596 7597 private boolean hasPaired(int userHandle) { 7598 if (!mHasFeature) { 7599 return true; 7600 } 7601 return getUserData(userHandle).mPaired; 7602 } 7603 7604 @Override 7605 public int getUserProvisioningState() { 7606 if (!mHasFeature) { 7607 return DevicePolicyManager.STATE_USER_UNMANAGED; 7608 } 7609 enforceManageUsers(); 7610 int userHandle = mInjector.userHandleGetCallingUserId(); 7611 return getUserProvisioningState(userHandle); 7612 } 7613 7614 private int getUserProvisioningState(int userHandle) { 7615 return getUserData(userHandle).mUserProvisioningState; 7616 } 7617 7618 @Override 7619 public void setUserProvisioningState(int newState, int userHandle) { 7620 if (!mHasFeature) { 7621 return; 7622 } 7623 7624 if (userHandle != mOwners.getDeviceOwnerUserId() && !mOwners.hasProfileOwner(userHandle) 7625 && getManagedUserId(userHandle) == -1) { 7626 // No managed device, user or profile, so setting provisioning state makes no sense. 7627 throw new IllegalStateException("Not allowed to change provisioning state unless a " 7628 + "device or profile owner is set."); 7629 } 7630 7631 synchronized (getLockObject()) { 7632 boolean transitionCheckNeeded = true; 7633 7634 // Calling identity/permission checks. 7635 if (isAdb()) { 7636 // ADB shell can only move directly from un-managed to finalized as part of directly 7637 // setting profile-owner or device-owner. 7638 if (getUserProvisioningState(userHandle) != 7639 DevicePolicyManager.STATE_USER_UNMANAGED 7640 || newState != DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 7641 throw new IllegalStateException("Not allowed to change provisioning state " 7642 + "unless current provisioning state is unmanaged, and new state is " 7643 + "finalized."); 7644 } 7645 transitionCheckNeeded = false; 7646 } else { 7647 // For all other cases, caller must have MANAGE_PROFILE_AND_DEVICE_OWNERS. 7648 enforceCanManageProfileAndDeviceOwners(); 7649 } 7650 7651 final DevicePolicyData policyData = getUserData(userHandle); 7652 if (transitionCheckNeeded) { 7653 // Optional state transition check for non-ADB case. 7654 checkUserProvisioningStateTransition(policyData.mUserProvisioningState, newState); 7655 } 7656 policyData.mUserProvisioningState = newState; 7657 saveSettingsLocked(userHandle); 7658 } 7659 } 7660 7661 private void checkUserProvisioningStateTransition(int currentState, int newState) { 7662 // Valid transitions for normal use-cases. 7663 switch (currentState) { 7664 case DevicePolicyManager.STATE_USER_UNMANAGED: 7665 // Can move to any state from unmanaged (except itself as an edge case).. 7666 if (newState != DevicePolicyManager.STATE_USER_UNMANAGED) { 7667 return; 7668 } 7669 break; 7670 case DevicePolicyManager.STATE_USER_SETUP_INCOMPLETE: 7671 case DevicePolicyManager.STATE_USER_SETUP_COMPLETE: 7672 // Can only move to finalized from these states. 7673 if (newState == DevicePolicyManager.STATE_USER_SETUP_FINALIZED) { 7674 return; 7675 } 7676 break; 7677 case DevicePolicyManager.STATE_USER_PROFILE_COMPLETE: 7678 // Current user has a managed-profile, but current user is not managed, so 7679 // rather than moving to finalized state, go back to unmanaged once 7680 // profile provisioning is complete. 7681 if (newState == DevicePolicyManager.STATE_USER_UNMANAGED) { 7682 return; 7683 } 7684 break; 7685 case DevicePolicyManager.STATE_USER_SETUP_FINALIZED: 7686 // Cannot transition out of finalized. 7687 break; 7688 } 7689 7690 // Didn't meet any of the accepted state transition checks above, throw appropriate error. 7691 throw new IllegalStateException("Cannot move to user provisioning state [" + newState + "] " 7692 + "from state [" + currentState + "]"); 7693 } 7694 7695 @Override 7696 public void setProfileEnabled(ComponentName who) { 7697 if (!mHasFeature) { 7698 return; 7699 } 7700 Preconditions.checkNotNull(who, "ComponentName is null"); 7701 synchronized (getLockObject()) { 7702 // Check if this is the profile owner who is calling 7703 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7704 final int userId = UserHandle.getCallingUserId(); 7705 enforceManagedProfile(userId, "enable the profile"); 7706 // Check if the profile is already enabled. 7707 UserInfo managedProfile = getUserInfo(userId); 7708 if (managedProfile.isEnabled()) { 7709 Slog.e(LOG_TAG, 7710 "setProfileEnabled is called when the profile is already enabled"); 7711 return; 7712 } 7713 long id = mInjector.binderClearCallingIdentity(); 7714 try { 7715 mUserManager.setUserEnabled(userId); 7716 UserInfo parent = mUserManager.getProfileParent(userId); 7717 Intent intent = new Intent(Intent.ACTION_MANAGED_PROFILE_ADDED); 7718 intent.putExtra(Intent.EXTRA_USER, new UserHandle(userId)); 7719 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY | 7720 Intent.FLAG_RECEIVER_FOREGROUND); 7721 mContext.sendBroadcastAsUser(intent, new UserHandle(parent.id)); 7722 } finally { 7723 mInjector.binderRestoreCallingIdentity(id); 7724 } 7725 } 7726 } 7727 7728 @Override 7729 public void setProfileName(ComponentName who, String profileName) { 7730 Preconditions.checkNotNull(who, "ComponentName is null"); 7731 int userId = UserHandle.getCallingUserId(); 7732 // Check if this is the profile owner (includes device owner). 7733 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 7734 7735 long id = mInjector.binderClearCallingIdentity(); 7736 try { 7737 mUserManager.setUserName(userId, profileName); 7738 } finally { 7739 mInjector.binderRestoreCallingIdentity(id); 7740 } 7741 } 7742 7743 @Override 7744 public ComponentName getProfileOwner(int userHandle) { 7745 if (!mHasFeature) { 7746 return null; 7747 } 7748 7749 synchronized (getLockObject()) { 7750 return mOwners.getProfileOwnerComponent(userHandle); 7751 } 7752 } 7753 7754 // Returns the active profile owner for this user or null if the current user has no 7755 // profile owner. 7756 @VisibleForTesting 7757 ActiveAdmin getProfileOwnerAdminLocked(int userHandle) { 7758 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userHandle); 7759 if (profileOwner == null) { 7760 return null; 7761 } 7762 DevicePolicyData policy = getUserData(userHandle); 7763 final int n = policy.mAdminList.size(); 7764 for (int i = 0; i < n; i++) { 7765 ActiveAdmin admin = policy.mAdminList.get(i); 7766 if (profileOwner.equals(admin.info.getComponent())) { 7767 return admin; 7768 } 7769 } 7770 return null; 7771 } 7772 7773 @Override 7774 public String getProfileOwnerName(int userHandle) { 7775 if (!mHasFeature) { 7776 return null; 7777 } 7778 enforceManageUsers(); 7779 ComponentName profileOwner = getProfileOwner(userHandle); 7780 if (profileOwner == null) { 7781 return null; 7782 } 7783 return getApplicationLabel(profileOwner.getPackageName(), userHandle); 7784 } 7785 7786 /** 7787 * Canonical name for a given package. 7788 */ 7789 private String getApplicationLabel(String packageName, int userHandle) { 7790 long token = mInjector.binderClearCallingIdentity(); 7791 try { 7792 final Context userContext; 7793 try { 7794 UserHandle handle = new UserHandle(userHandle); 7795 userContext = mContext.createPackageContextAsUser(packageName, 0, handle); 7796 } catch (PackageManager.NameNotFoundException nnfe) { 7797 Log.w(LOG_TAG, packageName + " is not installed for user " + userHandle, nnfe); 7798 return null; 7799 } 7800 ApplicationInfo appInfo = userContext.getApplicationInfo(); 7801 CharSequence result = null; 7802 if (appInfo != null) { 7803 result = appInfo.loadUnsafeLabel(userContext.getPackageManager()); 7804 } 7805 return result != null ? result.toString() : null; 7806 } finally { 7807 mInjector.binderRestoreCallingIdentity(token); 7808 } 7809 } 7810 7811 /** 7812 * Calls wtfStack() if called with the DPMS lock held. 7813 */ 7814 private void wtfIfInLock() { 7815 if (Thread.holdsLock(this)) { 7816 Slog.wtfStack(LOG_TAG, "Shouldn't be called with DPMS lock held"); 7817 } 7818 } 7819 7820 /** 7821 * The profile owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7822 * permission. 7823 * The profile owner can only be set before the user setup phase has completed, 7824 * except for: 7825 * - SYSTEM_UID 7826 * - adb unless hasIncompatibleAccountsOrNonAdb is true. 7827 */ 7828 private void enforceCanSetProfileOwnerLocked(@Nullable ComponentName owner, int userHandle, 7829 boolean hasIncompatibleAccountsOrNonAdb) { 7830 UserInfo info = getUserInfo(userHandle); 7831 if (info == null) { 7832 // User doesn't exist. 7833 throw new IllegalArgumentException( 7834 "Attempted to set profile owner for invalid userId: " + userHandle); 7835 } 7836 if (info.isGuest()) { 7837 throw new IllegalStateException("Cannot set a profile owner on a guest"); 7838 } 7839 if (mOwners.hasProfileOwner(userHandle)) { 7840 throw new IllegalStateException("Trying to set the profile owner, but profile owner " 7841 + "is already set."); 7842 } 7843 if (mOwners.hasDeviceOwner() && mOwners.getDeviceOwnerUserId() == userHandle) { 7844 throw new IllegalStateException("Trying to set the profile owner, but the user " 7845 + "already has a device owner."); 7846 } 7847 if (isAdb()) { 7848 if ((mIsWatch || hasUserSetupCompleted(userHandle)) 7849 && hasIncompatibleAccountsOrNonAdb) { 7850 throw new IllegalStateException("Not allowed to set the profile owner because " 7851 + "there are already some accounts on the profile"); 7852 } 7853 return; 7854 } 7855 enforceCanManageProfileAndDeviceOwners(); 7856 if ((mIsWatch || hasUserSetupCompleted(userHandle)) && !isCallerWithSystemUid()) { 7857 throw new IllegalStateException("Cannot set the profile owner on a user which is " 7858 + "already set-up"); 7859 } 7860 } 7861 7862 /** 7863 * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS 7864 * permission. 7865 */ 7866 private void enforceCanSetDeviceOwnerLocked(@Nullable ComponentName owner, int userId, 7867 boolean hasIncompatibleAccountsOrNonAdb) { 7868 if (!isAdb()) { 7869 enforceCanManageProfileAndDeviceOwners(); 7870 } 7871 7872 final int code = checkDeviceOwnerProvisioningPreConditionLocked( 7873 owner, userId, isAdb(), hasIncompatibleAccountsOrNonAdb); 7874 switch (code) { 7875 case CODE_OK: 7876 return; 7877 case CODE_HAS_DEVICE_OWNER: 7878 throw new IllegalStateException( 7879 "Trying to set the device owner, but device owner is already set."); 7880 case CODE_USER_HAS_PROFILE_OWNER: 7881 throw new IllegalStateException("Trying to set the device owner, but the user " 7882 + "already has a profile owner."); 7883 case CODE_USER_NOT_RUNNING: 7884 throw new IllegalStateException("User not running: " + userId); 7885 case CODE_NOT_SYSTEM_USER: 7886 throw new IllegalStateException("User is not system user"); 7887 case CODE_USER_SETUP_COMPLETED: 7888 throw new IllegalStateException( 7889 "Cannot set the device owner if the device is already set-up"); 7890 case CODE_NONSYSTEM_USER_EXISTS: 7891 throw new IllegalStateException("Not allowed to set the device owner because there " 7892 + "are already several users on the device"); 7893 case CODE_ACCOUNTS_NOT_EMPTY: 7894 throw new IllegalStateException("Not allowed to set the device owner because there " 7895 + "are already some accounts on the device"); 7896 case CODE_HAS_PAIRED: 7897 throw new IllegalStateException("Not allowed to set the device owner because this " 7898 + "device has already paired"); 7899 default: 7900 throw new IllegalStateException("Unexpected @ProvisioningPreCondition " + code); 7901 } 7902 } 7903 7904 private void enforceUserUnlocked(int userId) { 7905 // Since we're doing this operation on behalf of an app, we only 7906 // want to use the actual "unlocked" state. 7907 Preconditions.checkState(mUserManager.isUserUnlocked(userId), 7908 "User must be running and unlocked"); 7909 } 7910 7911 private void enforceUserUnlocked(@UserIdInt int userId, boolean parent) { 7912 if (parent) { 7913 enforceUserUnlocked(getProfileParentId(userId)); 7914 } else { 7915 enforceUserUnlocked(userId); 7916 } 7917 } 7918 7919 private void enforceManageUsers() { 7920 final int callingUid = mInjector.binderGetCallingUid(); 7921 if (!(isCallerWithSystemUid() || callingUid == Process.ROOT_UID)) { 7922 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_USERS, null); 7923 } 7924 } 7925 7926 private void enforceFullCrossUsersPermission(int userHandle) { 7927 enforceSystemUserOrPermissionIfCrossUser(userHandle, 7928 android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 7929 } 7930 7931 private void enforceCrossUsersPermission(int userHandle) { 7932 enforceSystemUserOrPermissionIfCrossUser(userHandle, 7933 android.Manifest.permission.INTERACT_ACROSS_USERS); 7934 } 7935 7936 private void enforceSystemUserOrPermission(String permission) { 7937 if (!(isCallerWithSystemUid() || mInjector.binderGetCallingUid() == Process.ROOT_UID)) { 7938 mContext.enforceCallingOrSelfPermission(permission, 7939 "Must be system or have " + permission + " permission"); 7940 } 7941 } 7942 7943 private void enforceSystemUserOrPermissionIfCrossUser(int userHandle, String permission) { 7944 if (userHandle < 0) { 7945 throw new IllegalArgumentException("Invalid userId " + userHandle); 7946 } 7947 if (userHandle == mInjector.userHandleGetCallingUserId()) { 7948 return; 7949 } 7950 enforceSystemUserOrPermission(permission); 7951 } 7952 7953 private void enforceManagedProfile(int userHandle, String message) { 7954 if(!isManagedProfile(userHandle)) { 7955 throw new SecurityException("You can not " + message + " outside a managed profile."); 7956 } 7957 } 7958 7959 private void enforceNotManagedProfile(int userHandle, String message) { 7960 if(isManagedProfile(userHandle)) { 7961 throw new SecurityException("You can not " + message + " for a managed profile."); 7962 } 7963 } 7964 7965 private void enforceDeviceOwnerOrManageUsers() { 7966 synchronized (getLockObject()) { 7967 if (getActiveAdminWithPolicyForUidLocked(null, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 7968 mInjector.binderGetCallingUid()) != null) { 7969 return; 7970 } 7971 } 7972 enforceManageUsers(); 7973 } 7974 7975 private void enforceProfileOwnerOrSystemUser() { 7976 synchronized (getLockObject()) { 7977 if (getActiveAdminWithPolicyForUidLocked(null, 7978 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7979 != null) { 7980 return; 7981 } 7982 } 7983 Preconditions.checkState(isCallerWithSystemUid(), 7984 "Only profile owner, device owner and system may call this method."); 7985 } 7986 7987 private void enforceProfileOwnerOrFullCrossUsersPermission(int userId) { 7988 if (userId == mInjector.userHandleGetCallingUserId()) { 7989 synchronized (getLockObject()) { 7990 if (getActiveAdminWithPolicyForUidLocked(null, 7991 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, mInjector.binderGetCallingUid()) 7992 != null) { 7993 // Device Owner/Profile Owner may access the user it runs on. 7994 return; 7995 } 7996 } 7997 } 7998 // Otherwise, INTERACT_ACROSS_USERS_FULL permission, system UID or root UID is required. 7999 enforceSystemUserOrPermission(android.Manifest.permission.INTERACT_ACROSS_USERS_FULL); 8000 } 8001 8002 private boolean canUserUseLockTaskLocked(int userId) { 8003 if (isUserAffiliatedWithDeviceLocked(userId)) { 8004 return true; 8005 } 8006 8007 // Unaffiliated profile owners are not allowed to use lock when there is a device owner. 8008 if (mOwners.hasDeviceOwner()) { 8009 return false; 8010 } 8011 8012 final ComponentName profileOwner = getProfileOwner(userId); 8013 if (profileOwner == null) { 8014 return false; 8015 } 8016 8017 // Managed profiles are not allowed to use lock task 8018 if (isManagedProfile(userId)) { 8019 return false; 8020 } 8021 8022 return true; 8023 } 8024 8025 private void enforceCanCallLockTaskLocked(ComponentName who) { 8026 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8027 final int userId = mInjector.userHandleGetCallingUserId(); 8028 if (!canUserUseLockTaskLocked(userId)) { 8029 throw new SecurityException("User " + userId + " is not allowed to use lock task"); 8030 } 8031 } 8032 8033 private void ensureCallerPackage(@Nullable String packageName) { 8034 if (packageName == null) { 8035 Preconditions.checkState(isCallerWithSystemUid(), 8036 "Only caller can omit package name"); 8037 } else { 8038 final int callingUid = mInjector.binderGetCallingUid(); 8039 final int userId = mInjector.userHandleGetCallingUserId(); 8040 try { 8041 final ApplicationInfo ai = mIPackageManager.getApplicationInfo( 8042 packageName, 0, userId); 8043 Preconditions.checkState(ai.uid == callingUid, "Unmatching package name"); 8044 } catch (RemoteException e) { 8045 // Shouldn't happen 8046 } 8047 } 8048 } 8049 8050 private boolean isCallerWithSystemUid() { 8051 return UserHandle.isSameApp(mInjector.binderGetCallingUid(), Process.SYSTEM_UID); 8052 } 8053 8054 protected int getProfileParentId(int userHandle) { 8055 final long ident = mInjector.binderClearCallingIdentity(); 8056 try { 8057 UserInfo parentUser = mUserManager.getProfileParent(userHandle); 8058 return parentUser != null ? parentUser.id : userHandle; 8059 } finally { 8060 mInjector.binderRestoreCallingIdentity(ident); 8061 } 8062 } 8063 8064 private int getCredentialOwner(int userHandle, boolean parent) { 8065 final long ident = mInjector.binderClearCallingIdentity(); 8066 try { 8067 if (parent) { 8068 UserInfo parentProfile = mUserManager.getProfileParent(userHandle); 8069 if (parentProfile != null) { 8070 userHandle = parentProfile.id; 8071 } 8072 } 8073 return mUserManager.getCredentialOwnerProfile(userHandle); 8074 } finally { 8075 mInjector.binderRestoreCallingIdentity(ident); 8076 } 8077 } 8078 8079 private boolean isManagedProfile(int userHandle) { 8080 final UserInfo user = getUserInfo(userHandle); 8081 return user != null && user.isManagedProfile(); 8082 } 8083 8084 private void enableIfNecessary(String packageName, int userId) { 8085 try { 8086 final ApplicationInfo ai = mIPackageManager.getApplicationInfo(packageName, 8087 PackageManager.MATCH_DISABLED_UNTIL_USED_COMPONENTS, userId); 8088 if (ai.enabledSetting 8089 == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_UNTIL_USED) { 8090 mIPackageManager.setApplicationEnabledSetting(packageName, 8091 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT, 8092 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 8093 } 8094 } catch (RemoteException e) { 8095 } 8096 } 8097 8098 @Override 8099 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 8100 if (!DumpUtils.checkDumpPermission(mContext, LOG_TAG, pw)) return; 8101 8102 synchronized (getLockObject()) { 8103 pw.println("Current Device Policy Manager state:"); 8104 8105 mOwners.dump(" ", pw); 8106 mDeviceAdminServiceController.dump(" ", pw); 8107 int userCount = mUserData.size(); 8108 for (int u = 0; u < userCount; u++) { 8109 DevicePolicyData policy = getUserData(mUserData.keyAt(u)); 8110 pw.println(); 8111 pw.println(" Enabled Device Admins (User " + policy.mUserHandle 8112 + ", provisioningState: " + policy.mUserProvisioningState + "):"); 8113 final int N = policy.mAdminList.size(); 8114 for (int i=0; i<N; i++) { 8115 ActiveAdmin ap = policy.mAdminList.get(i); 8116 if (ap != null) { 8117 pw.print(" "); pw.print(ap.info.getComponent().flattenToShortString()); 8118 pw.println(":"); 8119 ap.dump(" ", pw); 8120 } 8121 } 8122 if (!policy.mRemovingAdmins.isEmpty()) { 8123 pw.println(" Removing Device Admins (User " + policy.mUserHandle + "): " 8124 + policy.mRemovingAdmins); 8125 } 8126 8127 pw.println(" "); 8128 pw.print(" mPasswordOwner="); pw.println(policy.mPasswordOwner); 8129 } 8130 pw.println(); 8131 mConstants.dump(" ", pw); 8132 pw.println(); 8133 mStatLogger.dump(pw, " "); 8134 pw.println(); 8135 pw.println(" Encryption Status: " + getEncryptionStatusName(getEncryptionStatus())); 8136 } 8137 } 8138 8139 private String getEncryptionStatusName(int encryptionStatus) { 8140 switch (encryptionStatus) { 8141 case DevicePolicyManager.ENCRYPTION_STATUS_INACTIVE: 8142 return "inactive"; 8143 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_DEFAULT_KEY: 8144 return "block default key"; 8145 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE: 8146 return "block"; 8147 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVE_PER_USER: 8148 return "per-user"; 8149 case DevicePolicyManager.ENCRYPTION_STATUS_UNSUPPORTED: 8150 return "unsupported"; 8151 case DevicePolicyManager.ENCRYPTION_STATUS_ACTIVATING: 8152 return "activating"; 8153 default: 8154 return "unknown"; 8155 } 8156 } 8157 8158 @Override 8159 public void addPersistentPreferredActivity(ComponentName who, IntentFilter filter, 8160 ComponentName activity) { 8161 Preconditions.checkNotNull(who, "ComponentName is null"); 8162 final int userHandle = UserHandle.getCallingUserId(); 8163 synchronized (getLockObject()) { 8164 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8165 8166 long id = mInjector.binderClearCallingIdentity(); 8167 try { 8168 mIPackageManager.addPersistentPreferredActivity(filter, activity, userHandle); 8169 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 8170 } catch (RemoteException re) { 8171 // Shouldn't happen 8172 } finally { 8173 mInjector.binderRestoreCallingIdentity(id); 8174 } 8175 } 8176 } 8177 8178 @Override 8179 public void clearPackagePersistentPreferredActivities(ComponentName who, String packageName) { 8180 Preconditions.checkNotNull(who, "ComponentName is null"); 8181 final int userHandle = UserHandle.getCallingUserId(); 8182 synchronized (getLockObject()) { 8183 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8184 8185 long id = mInjector.binderClearCallingIdentity(); 8186 try { 8187 mIPackageManager.clearPackagePersistentPreferredActivities(packageName, userHandle); 8188 mIPackageManager.flushPackageRestrictionsAsUser(userHandle); 8189 } catch (RemoteException re) { 8190 // Shouldn't happen 8191 } finally { 8192 mInjector.binderRestoreCallingIdentity(id); 8193 } 8194 } 8195 } 8196 8197 @Override 8198 public void setDefaultSmsApplication(ComponentName admin, String packageName) { 8199 Preconditions.checkNotNull(admin, "ComponentName is null"); 8200 synchronized (getLockObject()) { 8201 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8202 } 8203 mInjector.binderWithCleanCallingIdentity(() -> 8204 SmsApplication.setDefaultApplication(packageName, mContext)); 8205 } 8206 8207 @Override 8208 public boolean setApplicationRestrictionsManagingPackage(ComponentName admin, 8209 String packageName) { 8210 try { 8211 setDelegatedScopePreO(admin, packageName, DELEGATION_APP_RESTRICTIONS); 8212 } catch (IllegalArgumentException e) { 8213 return false; 8214 } 8215 return true; 8216 } 8217 8218 @Override 8219 public String getApplicationRestrictionsManagingPackage(ComponentName admin) { 8220 final List<String> delegatePackages = getDelegatePackages(admin, 8221 DELEGATION_APP_RESTRICTIONS); 8222 return delegatePackages.size() > 0 ? delegatePackages.get(0) : null; 8223 } 8224 8225 @Override 8226 public boolean isCallerApplicationRestrictionsManagingPackage(String callerPackage) { 8227 return isCallerDelegate(callerPackage, DELEGATION_APP_RESTRICTIONS); 8228 } 8229 8230 @Override 8231 public void setApplicationRestrictions(ComponentName who, String callerPackage, 8232 String packageName, Bundle settings) { 8233 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 8234 DELEGATION_APP_RESTRICTIONS); 8235 8236 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 8237 final long id = mInjector.binderClearCallingIdentity(); 8238 try { 8239 mUserManager.setApplicationRestrictions(packageName, settings, userHandle); 8240 } finally { 8241 mInjector.binderRestoreCallingIdentity(id); 8242 } 8243 } 8244 8245 @Override 8246 public void setTrustAgentConfiguration(ComponentName admin, ComponentName agent, 8247 PersistableBundle args, boolean parent) { 8248 if (!mHasFeature) { 8249 return; 8250 } 8251 Preconditions.checkNotNull(admin, "admin is null"); 8252 Preconditions.checkNotNull(agent, "agent is null"); 8253 final int userHandle = UserHandle.getCallingUserId(); 8254 synchronized (getLockObject()) { 8255 ActiveAdmin ap = getActiveAdminForCallerLocked(admin, 8256 DeviceAdminInfo.USES_POLICY_DISABLE_KEYGUARD_FEATURES, parent); 8257 ap.trustAgentInfos.put(agent.flattenToString(), new TrustAgentInfo(args)); 8258 saveSettingsLocked(userHandle); 8259 } 8260 } 8261 8262 @Override 8263 public List<PersistableBundle> getTrustAgentConfiguration(ComponentName admin, 8264 ComponentName agent, int userHandle, boolean parent) { 8265 if (!mHasFeature) { 8266 return null; 8267 } 8268 Preconditions.checkNotNull(agent, "agent null"); 8269 enforceFullCrossUsersPermission(userHandle); 8270 8271 synchronized (getLockObject()) { 8272 final String componentName = agent.flattenToString(); 8273 if (admin != null) { 8274 final ActiveAdmin ap = getActiveAdminUncheckedLocked(admin, userHandle, parent); 8275 if (ap == null) return null; 8276 TrustAgentInfo trustAgentInfo = ap.trustAgentInfos.get(componentName); 8277 if (trustAgentInfo == null || trustAgentInfo.options == null) return null; 8278 List<PersistableBundle> result = new ArrayList<>(); 8279 result.add(trustAgentInfo.options); 8280 return result; 8281 } 8282 8283 // Return strictest policy for this user and profiles that are visible from this user. 8284 List<PersistableBundle> result = null; 8285 // Search through all admins that use KEYGUARD_DISABLE_TRUST_AGENTS and keep track 8286 // of the options. If any admin doesn't have options, discard options for the rest 8287 // and return null. 8288 List<ActiveAdmin> admins = 8289 getActiveAdminsForLockscreenPoliciesLocked(userHandle, parent); 8290 boolean allAdminsHaveOptions = true; 8291 final int N = admins.size(); 8292 for (int i = 0; i < N; i++) { 8293 final ActiveAdmin active = admins.get(i); 8294 8295 final boolean disablesTrust = (active.disabledKeyguardFeatures 8296 & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; 8297 final TrustAgentInfo info = active.trustAgentInfos.get(componentName); 8298 if (info != null && info.options != null && !info.options.isEmpty()) { 8299 if (disablesTrust) { 8300 if (result == null) { 8301 result = new ArrayList<>(); 8302 } 8303 result.add(info.options); 8304 } else { 8305 Log.w(LOG_TAG, "Ignoring admin " + active.info 8306 + " because it has trust options but doesn't declare " 8307 + "KEYGUARD_DISABLE_TRUST_AGENTS"); 8308 } 8309 } else if (disablesTrust) { 8310 allAdminsHaveOptions = false; 8311 break; 8312 } 8313 } 8314 return allAdminsHaveOptions ? result : null; 8315 } 8316 } 8317 8318 @Override 8319 public void setRestrictionsProvider(ComponentName who, ComponentName permissionProvider) { 8320 Preconditions.checkNotNull(who, "ComponentName is null"); 8321 synchronized (getLockObject()) { 8322 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8323 8324 int userHandle = UserHandle.getCallingUserId(); 8325 DevicePolicyData userData = getUserData(userHandle); 8326 userData.mRestrictionsProvider = permissionProvider; 8327 saveSettingsLocked(userHandle); 8328 } 8329 } 8330 8331 @Override 8332 public ComponentName getRestrictionsProvider(int userHandle) { 8333 synchronized (getLockObject()) { 8334 if (!isCallerWithSystemUid()) { 8335 throw new SecurityException("Only the system can query the permission provider"); 8336 } 8337 DevicePolicyData userData = getUserData(userHandle); 8338 return userData != null ? userData.mRestrictionsProvider : null; 8339 } 8340 } 8341 8342 @Override 8343 public void addCrossProfileIntentFilter(ComponentName who, IntentFilter filter, int flags) { 8344 Preconditions.checkNotNull(who, "ComponentName is null"); 8345 int callingUserId = UserHandle.getCallingUserId(); 8346 synchronized (getLockObject()) { 8347 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8348 8349 long id = mInjector.binderClearCallingIdentity(); 8350 try { 8351 UserInfo parent = mUserManager.getProfileParent(callingUserId); 8352 if (parent == null) { 8353 Slog.e(LOG_TAG, "Cannot call addCrossProfileIntentFilter if there is no " 8354 + "parent"); 8355 return; 8356 } 8357 if ((flags & DevicePolicyManager.FLAG_PARENT_CAN_ACCESS_MANAGED) != 0) { 8358 mIPackageManager.addCrossProfileIntentFilter( 8359 filter, who.getPackageName(), callingUserId, parent.id, 0); 8360 } 8361 if ((flags & DevicePolicyManager.FLAG_MANAGED_CAN_ACCESS_PARENT) != 0) { 8362 mIPackageManager.addCrossProfileIntentFilter(filter, who.getPackageName(), 8363 parent.id, callingUserId, 0); 8364 } 8365 } catch (RemoteException re) { 8366 // Shouldn't happen 8367 } finally { 8368 mInjector.binderRestoreCallingIdentity(id); 8369 } 8370 } 8371 } 8372 8373 @Override 8374 public void clearCrossProfileIntentFilters(ComponentName who) { 8375 Preconditions.checkNotNull(who, "ComponentName is null"); 8376 int callingUserId = UserHandle.getCallingUserId(); 8377 synchronized (getLockObject()) { 8378 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8379 long id = mInjector.binderClearCallingIdentity(); 8380 try { 8381 UserInfo parent = mUserManager.getProfileParent(callingUserId); 8382 if (parent == null) { 8383 Slog.e(LOG_TAG, "Cannot call clearCrossProfileIntentFilter if there is no " 8384 + "parent"); 8385 return; 8386 } 8387 // Removing those that go from the managed profile to the parent. 8388 mIPackageManager.clearCrossProfileIntentFilters( 8389 callingUserId, who.getPackageName()); 8390 // And those that go from the parent to the managed profile. 8391 // If we want to support multiple managed profiles, we will have to only remove 8392 // those that have callingUserId as their target. 8393 mIPackageManager.clearCrossProfileIntentFilters(parent.id, who.getPackageName()); 8394 } catch (RemoteException re) { 8395 // Shouldn't happen 8396 } finally { 8397 mInjector.binderRestoreCallingIdentity(id); 8398 } 8399 } 8400 } 8401 8402 /** 8403 * @return true if all packages in enabledPackages are either in the list 8404 * permittedList or are a system app. 8405 */ 8406 private boolean checkPackagesInPermittedListOrSystem(List<String> enabledPackages, 8407 List<String> permittedList, int userIdToCheck) { 8408 long id = mInjector.binderClearCallingIdentity(); 8409 try { 8410 // If we have an enabled packages list for a managed profile the packages 8411 // we should check are installed for the parent user. 8412 UserInfo user = getUserInfo(userIdToCheck); 8413 if (user.isManagedProfile()) { 8414 userIdToCheck = user.profileGroupId; 8415 } 8416 8417 for (String enabledPackage : enabledPackages) { 8418 boolean systemService = false; 8419 try { 8420 ApplicationInfo applicationInfo = mIPackageManager.getApplicationInfo( 8421 enabledPackage, PackageManager.MATCH_UNINSTALLED_PACKAGES, 8422 userIdToCheck); 8423 systemService = (applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 8424 } catch (RemoteException e) { 8425 Log.i(LOG_TAG, "Can't talk to package managed", e); 8426 } 8427 if (!systemService && !permittedList.contains(enabledPackage)) { 8428 return false; 8429 } 8430 } 8431 } finally { 8432 mInjector.binderRestoreCallingIdentity(id); 8433 } 8434 return true; 8435 } 8436 8437 private AccessibilityManager getAccessibilityManagerForUser(int userId) { 8438 // Not using AccessibilityManager.getInstance because that guesses 8439 // at the user you require based on callingUid and caches for a given 8440 // process. 8441 IBinder iBinder = ServiceManager.getService(Context.ACCESSIBILITY_SERVICE); 8442 IAccessibilityManager service = iBinder == null 8443 ? null : IAccessibilityManager.Stub.asInterface(iBinder); 8444 return new AccessibilityManager(mContext, service, userId); 8445 } 8446 8447 @Override 8448 public boolean setPermittedAccessibilityServices(ComponentName who, List packageList) { 8449 if (!mHasFeature) { 8450 return false; 8451 } 8452 Preconditions.checkNotNull(who, "ComponentName is null"); 8453 8454 if (packageList != null) { 8455 int userId = UserHandle.getCallingUserId(); 8456 List<AccessibilityServiceInfo> enabledServices = null; 8457 long id = mInjector.binderClearCallingIdentity(); 8458 try { 8459 UserInfo user = getUserInfo(userId); 8460 if (user.isManagedProfile()) { 8461 userId = user.profileGroupId; 8462 } 8463 AccessibilityManager accessibilityManager = getAccessibilityManagerForUser(userId); 8464 enabledServices = accessibilityManager.getEnabledAccessibilityServiceList( 8465 AccessibilityServiceInfo.FEEDBACK_ALL_MASK); 8466 } finally { 8467 mInjector.binderRestoreCallingIdentity(id); 8468 } 8469 8470 if (enabledServices != null) { 8471 List<String> enabledPackages = new ArrayList<String>(); 8472 for (AccessibilityServiceInfo service : enabledServices) { 8473 enabledPackages.add(service.getResolveInfo().serviceInfo.packageName); 8474 } 8475 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 8476 userId)) { 8477 Slog.e(LOG_TAG, "Cannot set permitted accessibility services, " 8478 + "because it contains already enabled accesibility services."); 8479 return false; 8480 } 8481 } 8482 } 8483 8484 synchronized (getLockObject()) { 8485 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8486 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8487 admin.permittedAccessiblityServices = packageList; 8488 saveSettingsLocked(UserHandle.getCallingUserId()); 8489 } 8490 return true; 8491 } 8492 8493 @Override 8494 public List getPermittedAccessibilityServices(ComponentName who) { 8495 if (!mHasFeature) { 8496 return null; 8497 } 8498 Preconditions.checkNotNull(who, "ComponentName is null"); 8499 8500 synchronized (getLockObject()) { 8501 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8502 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8503 return admin.permittedAccessiblityServices; 8504 } 8505 } 8506 8507 @Override 8508 public List getPermittedAccessibilityServicesForUser(int userId) { 8509 if (!mHasFeature) { 8510 return null; 8511 } 8512 enforceManageUsers(); 8513 synchronized (getLockObject()) { 8514 List<String> result = null; 8515 // If we have multiple profiles we return the intersection of the 8516 // permitted lists. This can happen in cases where we have a device 8517 // and profile owner. 8518 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 8519 for (int profileId : profileIds) { 8520 // Just loop though all admins, only device or profiles 8521 // owners can have permitted lists set. 8522 DevicePolicyData policy = getUserDataUnchecked(profileId); 8523 final int N = policy.mAdminList.size(); 8524 for (int j = 0; j < N; j++) { 8525 ActiveAdmin admin = policy.mAdminList.get(j); 8526 List<String> fromAdmin = admin.permittedAccessiblityServices; 8527 if (fromAdmin != null) { 8528 if (result == null) { 8529 result = new ArrayList<>(fromAdmin); 8530 } else { 8531 result.retainAll(fromAdmin); 8532 } 8533 } 8534 } 8535 } 8536 8537 // If we have a permitted list add all system accessibility services. 8538 if (result != null) { 8539 long id = mInjector.binderClearCallingIdentity(); 8540 try { 8541 UserInfo user = getUserInfo(userId); 8542 if (user.isManagedProfile()) { 8543 userId = user.profileGroupId; 8544 } 8545 AccessibilityManager accessibilityManager = 8546 getAccessibilityManagerForUser(userId); 8547 List<AccessibilityServiceInfo> installedServices = 8548 accessibilityManager.getInstalledAccessibilityServiceList(); 8549 8550 if (installedServices != null) { 8551 for (AccessibilityServiceInfo service : installedServices) { 8552 ServiceInfo serviceInfo = service.getResolveInfo().serviceInfo; 8553 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 8554 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 8555 result.add(serviceInfo.packageName); 8556 } 8557 } 8558 } 8559 } finally { 8560 mInjector.binderRestoreCallingIdentity(id); 8561 } 8562 } 8563 8564 return result; 8565 } 8566 } 8567 8568 @Override 8569 public boolean isAccessibilityServicePermittedByAdmin(ComponentName who, String packageName, 8570 int userHandle) { 8571 if (!mHasFeature) { 8572 return true; 8573 } 8574 Preconditions.checkNotNull(who, "ComponentName is null"); 8575 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 8576 if (!isCallerWithSystemUid()){ 8577 throw new SecurityException( 8578 "Only the system can query if an accessibility service is disabled by admin"); 8579 } 8580 synchronized (getLockObject()) { 8581 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8582 if (admin == null) { 8583 return false; 8584 } 8585 if (admin.permittedAccessiblityServices == null) { 8586 return true; 8587 } 8588 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 8589 admin.permittedAccessiblityServices, userHandle); 8590 } 8591 } 8592 8593 private boolean checkCallerIsCurrentUserOrProfile() { 8594 final int callingUserId = UserHandle.getCallingUserId(); 8595 final long token = mInjector.binderClearCallingIdentity(); 8596 try { 8597 UserInfo currentUser; 8598 UserInfo callingUser = getUserInfo(callingUserId); 8599 try { 8600 currentUser = mInjector.getIActivityManager().getCurrentUser(); 8601 } catch (RemoteException e) { 8602 Slog.e(LOG_TAG, "Failed to talk to activity managed.", e); 8603 return false; 8604 } 8605 8606 if (callingUser.isManagedProfile() && callingUser.profileGroupId != currentUser.id) { 8607 Slog.e(LOG_TAG, "Cannot set permitted input methods for managed profile " 8608 + "of a user that isn't the foreground user."); 8609 return false; 8610 } 8611 if (!callingUser.isManagedProfile() && callingUserId != currentUser.id ) { 8612 Slog.e(LOG_TAG, "Cannot set permitted input methods " 8613 + "of a user that isn't the foreground user."); 8614 return false; 8615 } 8616 } finally { 8617 mInjector.binderRestoreCallingIdentity(token); 8618 } 8619 return true; 8620 } 8621 8622 @Override 8623 public boolean setPermittedInputMethods(ComponentName who, List packageList) { 8624 if (!mHasFeature) { 8625 return false; 8626 } 8627 Preconditions.checkNotNull(who, "ComponentName is null"); 8628 8629 // TODO When InputMethodManager supports per user calls remove 8630 // this restriction. 8631 if (!checkCallerIsCurrentUserOrProfile()) { 8632 return false; 8633 } 8634 8635 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8636 if (packageList != null) { 8637 // InputMethodManager fetches input methods for current user. 8638 // So this can only be set when calling user is the current user 8639 // or parent is current user in case of managed profiles. 8640 InputMethodManager inputMethodManager = 8641 mContext.getSystemService(InputMethodManager.class); 8642 List<InputMethodInfo> enabledImes = inputMethodManager.getEnabledInputMethodList(); 8643 8644 if (enabledImes != null) { 8645 List<String> enabledPackages = new ArrayList<String>(); 8646 for (InputMethodInfo ime : enabledImes) { 8647 enabledPackages.add(ime.getPackageName()); 8648 } 8649 if (!checkPackagesInPermittedListOrSystem(enabledPackages, packageList, 8650 callingUserId)) { 8651 Slog.e(LOG_TAG, "Cannot set permitted input methods, " 8652 + "because it contains already enabled input method."); 8653 return false; 8654 } 8655 } 8656 } 8657 8658 synchronized (getLockObject()) { 8659 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8660 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8661 admin.permittedInputMethods = packageList; 8662 saveSettingsLocked(callingUserId); 8663 } 8664 return true; 8665 } 8666 8667 @Override 8668 public List getPermittedInputMethods(ComponentName who) { 8669 if (!mHasFeature) { 8670 return null; 8671 } 8672 Preconditions.checkNotNull(who, "ComponentName is null"); 8673 8674 synchronized (getLockObject()) { 8675 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 8676 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8677 return admin.permittedInputMethods; 8678 } 8679 } 8680 8681 @Override 8682 public List getPermittedInputMethodsForCurrentUser() { 8683 enforceManageUsers(); 8684 UserInfo currentUser; 8685 try { 8686 currentUser = mInjector.getIActivityManager().getCurrentUser(); 8687 } catch (RemoteException e) { 8688 Slog.e(LOG_TAG, "Failed to make remote calls to get current user", e); 8689 // Activity managed is dead, just allow all IMEs 8690 return null; 8691 } 8692 8693 int userId = currentUser.id; 8694 synchronized (getLockObject()) { 8695 List<String> result = null; 8696 // If we have multiple profiles we return the intersection of the 8697 // permitted lists. This can happen in cases where we have a device 8698 // and profile owner. 8699 int[] profileIds = mUserManager.getProfileIdsWithDisabled(userId); 8700 for (int profileId : profileIds) { 8701 // Just loop though all admins, only device or profiles 8702 // owners can have permitted lists set. 8703 DevicePolicyData policy = getUserDataUnchecked(profileId); 8704 final int N = policy.mAdminList.size(); 8705 for (int j = 0; j < N; j++) { 8706 ActiveAdmin admin = policy.mAdminList.get(j); 8707 List<String> fromAdmin = admin.permittedInputMethods; 8708 if (fromAdmin != null) { 8709 if (result == null) { 8710 result = new ArrayList<String>(fromAdmin); 8711 } else { 8712 result.retainAll(fromAdmin); 8713 } 8714 } 8715 } 8716 } 8717 8718 // If we have a permitted list add all system input methods. 8719 if (result != null) { 8720 InputMethodManager inputMethodManager = 8721 mContext.getSystemService(InputMethodManager.class); 8722 List<InputMethodInfo> imes = inputMethodManager.getInputMethodList(); 8723 long id = mInjector.binderClearCallingIdentity(); 8724 try { 8725 if (imes != null) { 8726 for (InputMethodInfo ime : imes) { 8727 ServiceInfo serviceInfo = ime.getServiceInfo(); 8728 ApplicationInfo applicationInfo = serviceInfo.applicationInfo; 8729 if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { 8730 result.add(serviceInfo.packageName); 8731 } 8732 } 8733 } 8734 } finally { 8735 mInjector.binderRestoreCallingIdentity(id); 8736 } 8737 } 8738 return result; 8739 } 8740 } 8741 8742 @Override 8743 public boolean isInputMethodPermittedByAdmin(ComponentName who, String packageName, 8744 int userHandle) { 8745 if (!mHasFeature) { 8746 return true; 8747 } 8748 Preconditions.checkNotNull(who, "ComponentName is null"); 8749 Preconditions.checkStringNotEmpty(packageName, "packageName is null"); 8750 if (!isCallerWithSystemUid()) { 8751 throw new SecurityException( 8752 "Only the system can query if an input method is disabled by admin"); 8753 } 8754 synchronized (getLockObject()) { 8755 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 8756 if (admin == null) { 8757 return false; 8758 } 8759 if (admin.permittedInputMethods == null) { 8760 return true; 8761 } 8762 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 8763 admin.permittedInputMethods, userHandle); 8764 } 8765 } 8766 8767 @Override 8768 public boolean setPermittedCrossProfileNotificationListeners( 8769 ComponentName who, List<String> packageList) { 8770 if (!mHasFeature) { 8771 return false; 8772 } 8773 Preconditions.checkNotNull(who, "ComponentName is null"); 8774 8775 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8776 if (!isManagedProfile(callingUserId)) { 8777 return false; 8778 } 8779 8780 synchronized (getLockObject()) { 8781 ActiveAdmin admin = getActiveAdminForCallerLocked( 8782 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8783 admin.permittedNotificationListeners = packageList; 8784 saveSettingsLocked(callingUserId); 8785 } 8786 return true; 8787 } 8788 8789 @Override 8790 public List<String> getPermittedCrossProfileNotificationListeners(ComponentName who) { 8791 if (!mHasFeature) { 8792 return null; 8793 } 8794 Preconditions.checkNotNull(who, "ComponentName is null"); 8795 8796 synchronized (getLockObject()) { 8797 ActiveAdmin admin = getActiveAdminForCallerLocked( 8798 who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 8799 return admin.permittedNotificationListeners; 8800 } 8801 } 8802 8803 @Override 8804 public boolean isNotificationListenerServicePermitted(String packageName, int userId) { 8805 if (!mHasFeature) { 8806 return true; 8807 } 8808 8809 Preconditions.checkStringNotEmpty(packageName, "packageName is null or empty"); 8810 if (!isCallerWithSystemUid()) { 8811 throw new SecurityException( 8812 "Only the system can query if a notification listener service is permitted"); 8813 } 8814 synchronized (getLockObject()) { 8815 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 8816 if (profileOwner == null || profileOwner.permittedNotificationListeners == null) { 8817 return true; 8818 } 8819 return checkPackagesInPermittedListOrSystem(Collections.singletonList(packageName), 8820 profileOwner.permittedNotificationListeners, userId); 8821 8822 } 8823 } 8824 8825 private void maybeSendAdminEnabledBroadcastLocked(int userHandle) { 8826 DevicePolicyData policyData = getUserData(userHandle); 8827 if (policyData.mAdminBroadcastPending) { 8828 // Send the initialization data to profile owner and delete the data 8829 ActiveAdmin admin = getProfileOwnerAdminLocked(userHandle); 8830 boolean clearInitBundle = true; 8831 if (admin != null) { 8832 PersistableBundle initBundle = policyData.mInitBundle; 8833 clearInitBundle = sendAdminCommandLocked(admin, 8834 DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED, 8835 initBundle == null ? null : new Bundle(initBundle), 8836 null /* result receiver */, 8837 true /* send in foreground */); 8838 } 8839 if (clearInitBundle) { 8840 // If there's no admin or we've successfully called the admin, clear the init bundle 8841 // otherwise, keep it around 8842 policyData.mInitBundle = null; 8843 policyData.mAdminBroadcastPending = false; 8844 saveSettingsLocked(userHandle); 8845 } 8846 } 8847 } 8848 8849 @Override 8850 public UserHandle createAndManageUser(ComponentName admin, String name, 8851 ComponentName profileOwner, PersistableBundle adminExtras, int flags) { 8852 Preconditions.checkNotNull(admin, "admin is null"); 8853 Preconditions.checkNotNull(profileOwner, "profileOwner is null"); 8854 if (!admin.getPackageName().equals(profileOwner.getPackageName())) { 8855 throw new IllegalArgumentException("profileOwner " + profileOwner + " and admin " 8856 + admin + " are not in the same package"); 8857 } 8858 // Only allow the system user to use this method 8859 if (!mInjector.binderGetCallingUserHandle().isSystem()) { 8860 throw new SecurityException("createAndManageUser was called from non-system user"); 8861 } 8862 final boolean ephemeral = (flags & DevicePolicyManager.MAKE_USER_EPHEMERAL) != 0; 8863 final boolean demo = (flags & DevicePolicyManager.MAKE_USER_DEMO) != 0 8864 && UserManager.isDeviceInDemoMode(mContext); 8865 final boolean leaveAllSystemAppsEnabled = (flags & LEAVE_ALL_SYSTEM_APPS_ENABLED) != 0; 8866 final int targetSdkVersion; 8867 8868 // Create user. 8869 UserHandle user = null; 8870 synchronized (getLockObject()) { 8871 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8872 8873 final int callingUid = mInjector.binderGetCallingUid(); 8874 final long id = mInjector.binderClearCallingIdentity(); 8875 try { 8876 targetSdkVersion = mInjector.getPackageManagerInternal().getUidTargetSdkVersion( 8877 callingUid); 8878 8879 // Return detail error code for checks inside 8880 // UserManagerService.createUserInternalUnchecked. 8881 DeviceStorageMonitorInternal deviceStorageMonitorInternal = 8882 LocalServices.getService(DeviceStorageMonitorInternal.class); 8883 if (deviceStorageMonitorInternal.isMemoryLow()) { 8884 if (targetSdkVersion >= Build.VERSION_CODES.P) { 8885 throw new ServiceSpecificException( 8886 UserManager.USER_OPERATION_ERROR_LOW_STORAGE, "low device storage"); 8887 } else { 8888 return null; 8889 } 8890 } 8891 if (!mUserManager.canAddMoreUsers()) { 8892 if (targetSdkVersion >= Build.VERSION_CODES.P) { 8893 throw new ServiceSpecificException( 8894 UserManager.USER_OPERATION_ERROR_MAX_USERS, "user limit reached"); 8895 } else { 8896 return null; 8897 } 8898 } 8899 8900 int userInfoFlags = 0; 8901 if (ephemeral) { 8902 userInfoFlags |= UserInfo.FLAG_EPHEMERAL; 8903 } 8904 if (demo) { 8905 userInfoFlags |= UserInfo.FLAG_DEMO; 8906 } 8907 String[] disallowedPackages = null; 8908 if (!leaveAllSystemAppsEnabled) { 8909 disallowedPackages = mOverlayPackagesProvider.getNonRequiredApps(admin, 8910 UserHandle.myUserId(), ACTION_PROVISION_MANAGED_USER).toArray( 8911 new String[0]); 8912 } 8913 UserInfo userInfo = mUserManagerInternal.createUserEvenWhenDisallowed(name, 8914 userInfoFlags, disallowedPackages); 8915 if (userInfo != null) { 8916 user = userInfo.getUserHandle(); 8917 } 8918 } finally { 8919 mInjector.binderRestoreCallingIdentity(id); 8920 } 8921 } 8922 if (user == null) { 8923 if (targetSdkVersion >= Build.VERSION_CODES.P) { 8924 throw new ServiceSpecificException(UserManager.USER_OPERATION_ERROR_UNKNOWN, 8925 "failed to create user"); 8926 } else { 8927 return null; 8928 } 8929 } 8930 8931 final int userHandle = user.getIdentifier(); 8932 final Intent intent = new Intent(DevicePolicyManager.ACTION_MANAGED_USER_CREATED) 8933 .putExtra(Intent.EXTRA_USER_HANDLE, userHandle) 8934 .putExtra( 8935 DevicePolicyManager.EXTRA_PROVISIONING_LEAVE_ALL_SYSTEM_APPS_ENABLED, 8936 leaveAllSystemAppsEnabled) 8937 .setPackage(getManagedProvisioningPackage(mContext)) 8938 .addFlags(Intent.FLAG_RECEIVER_FOREGROUND); 8939 mContext.sendBroadcastAsUser(intent, UserHandle.SYSTEM); 8940 8941 final long id = mInjector.binderClearCallingIdentity(); 8942 try { 8943 final String adminPkg = admin.getPackageName(); 8944 try { 8945 // Install the profile owner if not present. 8946 if (!mIPackageManager.isPackageAvailable(adminPkg, userHandle)) { 8947 mIPackageManager.installExistingPackageAsUser(adminPkg, userHandle, 8948 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 8949 } 8950 } catch (RemoteException e) { 8951 // Does not happen, same process 8952 } 8953 8954 // Set admin. 8955 setActiveAdmin(profileOwner, true, userHandle); 8956 final String ownerName = getProfileOwnerName(Process.myUserHandle().getIdentifier()); 8957 setProfileOwner(profileOwner, ownerName, userHandle); 8958 8959 synchronized (getLockObject()) { 8960 DevicePolicyData policyData = getUserData(userHandle); 8961 policyData.mInitBundle = adminExtras; 8962 policyData.mAdminBroadcastPending = true; 8963 saveSettingsLocked(userHandle); 8964 } 8965 8966 if ((flags & DevicePolicyManager.SKIP_SETUP_WIZARD) != 0) { 8967 Settings.Secure.putIntForUser(mContext.getContentResolver(), 8968 Settings.Secure.USER_SETUP_COMPLETE, 1, userHandle); 8969 } 8970 8971 return user; 8972 } catch (Throwable re) { 8973 mUserManager.removeUser(userHandle); 8974 if (targetSdkVersion >= Build.VERSION_CODES.P) { 8975 throw new ServiceSpecificException(UserManager.USER_OPERATION_ERROR_UNKNOWN, 8976 re.getMessage()); 8977 } else { 8978 return null; 8979 } 8980 } finally { 8981 mInjector.binderRestoreCallingIdentity(id); 8982 } 8983 } 8984 8985 @Override 8986 public boolean removeUser(ComponentName who, UserHandle userHandle) { 8987 Preconditions.checkNotNull(who, "ComponentName is null"); 8988 Preconditions.checkNotNull(userHandle, "UserHandle is null"); 8989 8990 synchronized (getLockObject()) { 8991 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 8992 } 8993 8994 final int callingUserId = mInjector.userHandleGetCallingUserId(); 8995 final long id = mInjector.binderClearCallingIdentity(); 8996 try { 8997 String restriction = isManagedProfile(userHandle.getIdentifier()) 8998 ? UserManager.DISALLOW_REMOVE_MANAGED_PROFILE 8999 : UserManager.DISALLOW_REMOVE_USER; 9000 if (isAdminAffectedByRestriction(who, restriction, callingUserId)) { 9001 Log.w(LOG_TAG, "The device owner cannot remove a user because " 9002 + restriction + " is enabled, and was not set by the device owner"); 9003 return false; 9004 } 9005 return mUserManagerInternal.removeUserEvenWhenDisallowed(userHandle.getIdentifier()); 9006 } finally { 9007 mInjector.binderRestoreCallingIdentity(id); 9008 } 9009 } 9010 9011 private boolean isAdminAffectedByRestriction( 9012 ComponentName admin, String userRestriction, int userId) { 9013 switch(mUserManager.getUserRestrictionSource(userRestriction, UserHandle.of(userId))) { 9014 case UserManager.RESTRICTION_NOT_SET: 9015 return false; 9016 case UserManager.RESTRICTION_SOURCE_DEVICE_OWNER: 9017 return !isDeviceOwner(admin, userId); 9018 case UserManager.RESTRICTION_SOURCE_PROFILE_OWNER: 9019 return !isProfileOwner(admin, userId); 9020 default: 9021 return true; 9022 } 9023 } 9024 9025 @Override 9026 public boolean switchUser(ComponentName who, UserHandle userHandle) { 9027 Preconditions.checkNotNull(who, "ComponentName is null"); 9028 9029 synchronized (getLockObject()) { 9030 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9031 9032 long id = mInjector.binderClearCallingIdentity(); 9033 try { 9034 int userId = UserHandle.USER_SYSTEM; 9035 if (userHandle != null) { 9036 userId = userHandle.getIdentifier(); 9037 } 9038 return mInjector.getIActivityManager().switchUser(userId); 9039 } catch (RemoteException e) { 9040 Log.e(LOG_TAG, "Couldn't switch user", e); 9041 return false; 9042 } finally { 9043 mInjector.binderRestoreCallingIdentity(id); 9044 } 9045 } 9046 } 9047 9048 @Override 9049 public int startUserInBackground(ComponentName who, UserHandle userHandle) { 9050 Preconditions.checkNotNull(who, "ComponentName is null"); 9051 Preconditions.checkNotNull(userHandle, "UserHandle is null"); 9052 9053 synchronized (getLockObject()) { 9054 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9055 } 9056 9057 final int userId = userHandle.getIdentifier(); 9058 if (isManagedProfile(userId)) { 9059 Log.w(LOG_TAG, "Managed profile cannot be started in background"); 9060 return UserManager.USER_OPERATION_ERROR_MANAGED_PROFILE; 9061 } 9062 9063 final long id = mInjector.binderClearCallingIdentity(); 9064 try { 9065 if (!mInjector.getActivityManagerInternal().canStartMoreUsers()) { 9066 Log.w(LOG_TAG, "Cannot start more users in background"); 9067 return UserManager.USER_OPERATION_ERROR_MAX_RUNNING_USERS; 9068 } 9069 9070 if (mInjector.getIActivityManager().startUserInBackground(userId)) { 9071 return UserManager.USER_OPERATION_SUCCESS; 9072 } else { 9073 return UserManager.USER_OPERATION_ERROR_UNKNOWN; 9074 } 9075 } catch (RemoteException e) { 9076 // Same process, should not happen. 9077 return UserManager.USER_OPERATION_ERROR_UNKNOWN; 9078 } finally { 9079 mInjector.binderRestoreCallingIdentity(id); 9080 } 9081 } 9082 9083 @Override 9084 public int stopUser(ComponentName who, UserHandle userHandle) { 9085 Preconditions.checkNotNull(who, "ComponentName is null"); 9086 Preconditions.checkNotNull(userHandle, "UserHandle is null"); 9087 9088 synchronized (getLockObject()) { 9089 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9090 } 9091 9092 final int userId = userHandle.getIdentifier(); 9093 if (isManagedProfile(userId)) { 9094 Log.w(LOG_TAG, "Managed profile cannot be stopped"); 9095 return UserManager.USER_OPERATION_ERROR_MANAGED_PROFILE; 9096 } 9097 9098 return stopUserUnchecked(userId); 9099 } 9100 9101 @Override 9102 public int logoutUser(ComponentName who) { 9103 Preconditions.checkNotNull(who, "ComponentName is null"); 9104 9105 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9106 synchronized (getLockObject()) { 9107 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9108 if (!isUserAffiliatedWithDeviceLocked(callingUserId)) { 9109 throw new SecurityException("Admin " + who + 9110 " is neither the device owner or affiliated user's profile owner."); 9111 } 9112 } 9113 9114 if (isManagedProfile(callingUserId)) { 9115 Log.w(LOG_TAG, "Managed profile cannot be logout"); 9116 return UserManager.USER_OPERATION_ERROR_MANAGED_PROFILE; 9117 } 9118 9119 final long id = mInjector.binderClearCallingIdentity(); 9120 try { 9121 if (!mInjector.getIActivityManager().switchUser(UserHandle.USER_SYSTEM)) { 9122 Log.w(LOG_TAG, "Failed to switch to primary user"); 9123 // This should never happen as target user is UserHandle.USER_SYSTEM 9124 return UserManager.USER_OPERATION_ERROR_UNKNOWN; 9125 } 9126 } catch (RemoteException e) { 9127 // Same process, should not happen. 9128 return UserManager.USER_OPERATION_ERROR_UNKNOWN; 9129 } finally { 9130 mInjector.binderRestoreCallingIdentity(id); 9131 } 9132 9133 return stopUserUnchecked(callingUserId); 9134 } 9135 9136 private int stopUserUnchecked(int userId) { 9137 final long id = mInjector.binderClearCallingIdentity(); 9138 try { 9139 switch (mInjector.getIActivityManager().stopUser(userId, true /*force*/, null)) { 9140 case ActivityManager.USER_OP_SUCCESS: 9141 return UserManager.USER_OPERATION_SUCCESS; 9142 case ActivityManager.USER_OP_IS_CURRENT: 9143 return UserManager.USER_OPERATION_ERROR_CURRENT_USER; 9144 default: 9145 return UserManager.USER_OPERATION_ERROR_UNKNOWN; 9146 } 9147 } catch (RemoteException e) { 9148 // Same process, should not happen. 9149 return UserManager.USER_OPERATION_ERROR_UNKNOWN; 9150 } finally { 9151 mInjector.binderRestoreCallingIdentity(id); 9152 } 9153 } 9154 9155 @Override 9156 public List<UserHandle> getSecondaryUsers(ComponentName who) { 9157 Preconditions.checkNotNull(who, "ComponentName is null"); 9158 synchronized (getLockObject()) { 9159 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9160 } 9161 9162 final long id = mInjector.binderClearCallingIdentity(); 9163 try { 9164 final List<UserInfo> userInfos = mInjector.getUserManager().getUsers(true 9165 /*excludeDying*/); 9166 final List<UserHandle> userHandles = new ArrayList<>(); 9167 for (UserInfo userInfo : userInfos) { 9168 UserHandle userHandle = userInfo.getUserHandle(); 9169 if (!userHandle.isSystem() && !isManagedProfile(userHandle.getIdentifier())) { 9170 userHandles.add(userInfo.getUserHandle()); 9171 } 9172 } 9173 return userHandles; 9174 } finally { 9175 mInjector.binderRestoreCallingIdentity(id); 9176 } 9177 } 9178 9179 @Override 9180 public boolean isEphemeralUser(ComponentName who) { 9181 Preconditions.checkNotNull(who, "ComponentName is null"); 9182 synchronized (getLockObject()) { 9183 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9184 } 9185 9186 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9187 final long id = mInjector.binderClearCallingIdentity(); 9188 try { 9189 return mInjector.getUserManager().isUserEphemeral(callingUserId); 9190 } finally { 9191 mInjector.binderRestoreCallingIdentity(id); 9192 } 9193 } 9194 9195 @Override 9196 public Bundle getApplicationRestrictions(ComponentName who, String callerPackage, 9197 String packageName) { 9198 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9199 DELEGATION_APP_RESTRICTIONS); 9200 9201 final UserHandle userHandle = mInjector.binderGetCallingUserHandle(); 9202 final long id = mInjector.binderClearCallingIdentity(); 9203 try { 9204 Bundle bundle = mUserManager.getApplicationRestrictions(packageName, userHandle); 9205 // if no restrictions were saved, mUserManager.getApplicationRestrictions 9206 // returns null, but DPM method should return an empty Bundle as per JavaDoc 9207 return bundle != null ? bundle : Bundle.EMPTY; 9208 } finally { 9209 mInjector.binderRestoreCallingIdentity(id); 9210 } 9211 } 9212 9213 @Override 9214 public String[] setPackagesSuspended(ComponentName who, String callerPackage, 9215 String[] packageNames, boolean suspended) { 9216 int callingUserId = UserHandle.getCallingUserId(); 9217 synchronized (getLockObject()) { 9218 // Ensure the caller is a DO/PO or a package access delegate. 9219 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9220 DELEGATION_PACKAGE_ACCESS); 9221 9222 long id = mInjector.binderClearCallingIdentity(); 9223 try { 9224 return mIPackageManager.setPackagesSuspendedAsUser(packageNames, suspended, 9225 null, null, null, PLATFORM_PACKAGE_NAME, callingUserId); 9226 } catch (RemoteException re) { 9227 // Shouldn't happen. 9228 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 9229 } finally { 9230 mInjector.binderRestoreCallingIdentity(id); 9231 } 9232 return packageNames; 9233 } 9234 } 9235 9236 @Override 9237 public boolean isPackageSuspended(ComponentName who, String callerPackage, String packageName) { 9238 int callingUserId = UserHandle.getCallingUserId(); 9239 synchronized (getLockObject()) { 9240 // Ensure the caller is a DO/PO or a package access delegate. 9241 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9242 DELEGATION_PACKAGE_ACCESS); 9243 9244 long id = mInjector.binderClearCallingIdentity(); 9245 try { 9246 return mIPackageManager.isPackageSuspendedForUser(packageName, callingUserId); 9247 } catch (RemoteException re) { 9248 // Shouldn't happen. 9249 Slog.e(LOG_TAG, "Failed talking to the package manager", re); 9250 } finally { 9251 mInjector.binderRestoreCallingIdentity(id); 9252 } 9253 return false; 9254 } 9255 } 9256 9257 @Override 9258 public void setUserRestriction(ComponentName who, String key, boolean enabledFromThisOwner) { 9259 Preconditions.checkNotNull(who, "ComponentName is null"); 9260 if (!UserRestrictionsUtils.isValidRestriction(key)) { 9261 return; 9262 } 9263 9264 final int userHandle = mInjector.userHandleGetCallingUserId(); 9265 synchronized (getLockObject()) { 9266 final ActiveAdmin activeAdmin = 9267 getActiveAdminForCallerLocked(who, 9268 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9269 final boolean isDeviceOwner = isDeviceOwner(who, userHandle); 9270 if (isDeviceOwner) { 9271 if (!UserRestrictionsUtils.canDeviceOwnerChange(key)) { 9272 throw new SecurityException("Device owner cannot set user restriction " + key); 9273 } 9274 } else { // profile owner 9275 if (!UserRestrictionsUtils.canProfileOwnerChange(key, userHandle)) { 9276 throw new SecurityException("Profile owner cannot set user restriction " + key); 9277 } 9278 } 9279 9280 // Save the restriction to ActiveAdmin. 9281 final Bundle restrictions = activeAdmin.ensureUserRestrictions(); 9282 if (enabledFromThisOwner) { 9283 restrictions.putBoolean(key, true); 9284 } else { 9285 restrictions.remove(key); 9286 } 9287 saveUserRestrictionsLocked(userHandle); 9288 } 9289 if (SecurityLog.isLoggingEnabled()) { 9290 final int eventTag = enabledFromThisOwner 9291 ? SecurityLog.TAG_USER_RESTRICTION_ADDED 9292 : SecurityLog.TAG_USER_RESTRICTION_REMOVED; 9293 SecurityLog.writeEvent(eventTag, who.getPackageName(), userHandle, key); 9294 } 9295 } 9296 9297 private void saveUserRestrictionsLocked(int userId) { 9298 saveSettingsLocked(userId); 9299 pushUserRestrictions(userId); 9300 sendChangedNotification(userId); 9301 } 9302 9303 private void pushUserRestrictions(int userId) { 9304 synchronized (getLockObject()) { 9305 final boolean isDeviceOwner = mOwners.isDeviceOwnerUserId(userId); 9306 final Bundle userRestrictions; 9307 // Whether device owner enforces camera restriction. 9308 boolean disallowCameraGlobally = false; 9309 9310 if (isDeviceOwner) { 9311 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 9312 if (deviceOwner == null) { 9313 return; // Shouldn't happen. 9314 } 9315 userRestrictions = deviceOwner.userRestrictions; 9316 // DO can disable camera globally. 9317 disallowCameraGlobally = deviceOwner.disableCamera; 9318 } else { 9319 final ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userId); 9320 userRestrictions = profileOwner != null ? profileOwner.userRestrictions : null; 9321 } 9322 9323 // Whether any admin enforces camera restriction. 9324 final int cameraRestrictionScope = 9325 getCameraRestrictionScopeLocked(userId, disallowCameraGlobally); 9326 9327 mUserManagerInternal.setDevicePolicyUserRestrictions(userId, userRestrictions, 9328 isDeviceOwner, cameraRestrictionScope); 9329 } 9330 } 9331 9332 /** 9333 * Get the scope of camera restriction for a given user if any. 9334 */ 9335 private int getCameraRestrictionScopeLocked(int userId, boolean disallowCameraGlobally) { 9336 if (disallowCameraGlobally) { 9337 return UserManagerInternal.CAMERA_DISABLED_GLOBALLY; 9338 } else if (getCameraDisabled( 9339 /* who= */ null, userId, /* mergeDeviceOwnerRestriction= */ false)) { 9340 return UserManagerInternal.CAMERA_DISABLED_LOCALLY; 9341 } 9342 return UserManagerInternal.CAMERA_NOT_DISABLED; 9343 } 9344 9345 @Override 9346 public Bundle getUserRestrictions(ComponentName who) { 9347 if (!mHasFeature) { 9348 return null; 9349 } 9350 Preconditions.checkNotNull(who, "ComponentName is null"); 9351 synchronized (getLockObject()) { 9352 final ActiveAdmin activeAdmin = getActiveAdminForCallerLocked(who, 9353 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9354 return activeAdmin.userRestrictions; 9355 } 9356 } 9357 9358 @Override 9359 public boolean setApplicationHidden(ComponentName who, String callerPackage, String packageName, 9360 boolean hidden) { 9361 int callingUserId = UserHandle.getCallingUserId(); 9362 synchronized (getLockObject()) { 9363 // Ensure the caller is a DO/PO or a package access delegate. 9364 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9365 DELEGATION_PACKAGE_ACCESS); 9366 9367 long id = mInjector.binderClearCallingIdentity(); 9368 try { 9369 return mIPackageManager.setApplicationHiddenSettingAsUser( 9370 packageName, hidden, callingUserId); 9371 } catch (RemoteException re) { 9372 // shouldn't happen 9373 Slog.e(LOG_TAG, "Failed to setApplicationHiddenSetting", re); 9374 } finally { 9375 mInjector.binderRestoreCallingIdentity(id); 9376 } 9377 return false; 9378 } 9379 } 9380 9381 @Override 9382 public boolean isApplicationHidden(ComponentName who, String callerPackage, 9383 String packageName) { 9384 int callingUserId = UserHandle.getCallingUserId(); 9385 synchronized (getLockObject()) { 9386 // Ensure the caller is a DO/PO or a package access delegate. 9387 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9388 DELEGATION_PACKAGE_ACCESS); 9389 9390 long id = mInjector.binderClearCallingIdentity(); 9391 try { 9392 return mIPackageManager.getApplicationHiddenSettingAsUser( 9393 packageName, callingUserId); 9394 } catch (RemoteException re) { 9395 // shouldn't happen 9396 Slog.e(LOG_TAG, "Failed to getApplicationHiddenSettingAsUser", re); 9397 } finally { 9398 mInjector.binderRestoreCallingIdentity(id); 9399 } 9400 return false; 9401 } 9402 } 9403 9404 @Override 9405 public void enableSystemApp(ComponentName who, String callerPackage, String packageName) { 9406 synchronized (getLockObject()) { 9407 // Ensure the caller is a DO/PO or an enable system app delegate. 9408 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9409 DELEGATION_ENABLE_SYSTEM_APP); 9410 9411 final boolean isDemo = isCurrentUserDemo(); 9412 9413 int userId = UserHandle.getCallingUserId(); 9414 long id = mInjector.binderClearCallingIdentity(); 9415 9416 try { 9417 if (VERBOSE_LOG) { 9418 Slog.v(LOG_TAG, "installing " + packageName + " for " 9419 + userId); 9420 } 9421 9422 int parentUserId = getProfileParentId(userId); 9423 if (!isDemo && !isSystemApp(mIPackageManager, packageName, parentUserId)) { 9424 throw new IllegalArgumentException("Only system apps can be enabled this way."); 9425 } 9426 9427 // Install the app. 9428 mIPackageManager.installExistingPackageAsUser(packageName, userId, 9429 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 9430 if (isDemo) { 9431 // Ensure the app is also ENABLED for demo users. 9432 mIPackageManager.setApplicationEnabledSetting(packageName, 9433 PackageManager.COMPONENT_ENABLED_STATE_ENABLED, 9434 PackageManager.DONT_KILL_APP, userId, "DevicePolicyManager"); 9435 } 9436 } catch (RemoteException re) { 9437 // shouldn't happen 9438 Slog.wtf(LOG_TAG, "Failed to install " + packageName, re); 9439 } finally { 9440 mInjector.binderRestoreCallingIdentity(id); 9441 } 9442 } 9443 } 9444 9445 @Override 9446 public int enableSystemAppWithIntent(ComponentName who, String callerPackage, Intent intent) { 9447 synchronized (getLockObject()) { 9448 // Ensure the caller is a DO/PO or an enable system app delegate. 9449 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9450 DELEGATION_ENABLE_SYSTEM_APP); 9451 9452 int userId = UserHandle.getCallingUserId(); 9453 long id = mInjector.binderClearCallingIdentity(); 9454 9455 try { 9456 int parentUserId = getProfileParentId(userId); 9457 List<ResolveInfo> activitiesToEnable = mIPackageManager 9458 .queryIntentActivities(intent, 9459 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 9460 PackageManager.MATCH_DIRECT_BOOT_AWARE 9461 | PackageManager.MATCH_DIRECT_BOOT_UNAWARE, 9462 parentUserId) 9463 .getList(); 9464 9465 if (VERBOSE_LOG) { 9466 Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable); 9467 } 9468 int numberOfAppsInstalled = 0; 9469 if (activitiesToEnable != null) { 9470 for (ResolveInfo info : activitiesToEnable) { 9471 if (info.activityInfo != null) { 9472 String packageName = info.activityInfo.packageName; 9473 if (isSystemApp(mIPackageManager, packageName, parentUserId)) { 9474 numberOfAppsInstalled++; 9475 mIPackageManager.installExistingPackageAsUser(packageName, userId, 9476 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY); 9477 } else { 9478 Slog.d(LOG_TAG, "Not enabling " + packageName + " since is not a" 9479 + " system app"); 9480 } 9481 } 9482 } 9483 } 9484 return numberOfAppsInstalled; 9485 } catch (RemoteException e) { 9486 // shouldn't happen 9487 Slog.wtf(LOG_TAG, "Failed to resolve intent for: " + intent); 9488 return 0; 9489 } finally { 9490 mInjector.binderRestoreCallingIdentity(id); 9491 } 9492 } 9493 } 9494 9495 private boolean isSystemApp(IPackageManager pm, String packageName, int userId) 9496 throws RemoteException { 9497 ApplicationInfo appInfo = pm.getApplicationInfo(packageName, MATCH_UNINSTALLED_PACKAGES, 9498 userId); 9499 if (appInfo == null) { 9500 throw new IllegalArgumentException("The application " + packageName + 9501 " is not present on this device"); 9502 } 9503 return (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0; 9504 } 9505 9506 @Override 9507 public boolean installExistingPackage(ComponentName who, String callerPackage, 9508 String packageName) { 9509 synchronized (getLockObject()) { 9510 // Ensure the caller is a PO or an install existing package delegate 9511 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9512 DELEGATION_INSTALL_EXISTING_PACKAGE); 9513 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9514 if (!isUserAffiliatedWithDeviceLocked(callingUserId)) { 9515 throw new SecurityException("Admin " + who + 9516 " is neither the device owner or affiliated user's profile owner."); 9517 } 9518 9519 final long id = mInjector.binderClearCallingIdentity(); 9520 try { 9521 if (VERBOSE_LOG) { 9522 Slog.v(LOG_TAG, "installing " + packageName + " for " 9523 + callingUserId); 9524 } 9525 9526 // Install the package. 9527 return mIPackageManager.installExistingPackageAsUser(packageName, callingUserId, 9528 0 /*installFlags*/, PackageManager.INSTALL_REASON_POLICY) 9529 == PackageManager.INSTALL_SUCCEEDED; 9530 } catch (RemoteException re) { 9531 // shouldn't happen 9532 return false; 9533 } finally { 9534 mInjector.binderRestoreCallingIdentity(id); 9535 } 9536 } 9537 } 9538 9539 @Override 9540 public void setAccountManagementDisabled(ComponentName who, String accountType, 9541 boolean disabled) { 9542 if (!mHasFeature) { 9543 return; 9544 } 9545 Preconditions.checkNotNull(who, "ComponentName is null"); 9546 synchronized (getLockObject()) { 9547 ActiveAdmin ap = getActiveAdminForCallerLocked(who, 9548 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9549 if (disabled) { 9550 ap.accountTypesWithManagementDisabled.add(accountType); 9551 } else { 9552 ap.accountTypesWithManagementDisabled.remove(accountType); 9553 } 9554 saveSettingsLocked(UserHandle.getCallingUserId()); 9555 } 9556 } 9557 9558 @Override 9559 public String[] getAccountTypesWithManagementDisabled() { 9560 return getAccountTypesWithManagementDisabledAsUser(UserHandle.getCallingUserId()); 9561 } 9562 9563 @Override 9564 public String[] getAccountTypesWithManagementDisabledAsUser(int userId) { 9565 enforceFullCrossUsersPermission(userId); 9566 if (!mHasFeature) { 9567 return null; 9568 } 9569 synchronized (getLockObject()) { 9570 DevicePolicyData policy = getUserData(userId); 9571 final int N = policy.mAdminList.size(); 9572 ArraySet<String> resultSet = new ArraySet<>(); 9573 for (int i = 0; i < N; i++) { 9574 ActiveAdmin admin = policy.mAdminList.get(i); 9575 resultSet.addAll(admin.accountTypesWithManagementDisabled); 9576 } 9577 return resultSet.toArray(new String[resultSet.size()]); 9578 } 9579 } 9580 9581 @Override 9582 public void setUninstallBlocked(ComponentName who, String callerPackage, String packageName, 9583 boolean uninstallBlocked) { 9584 final int userId = UserHandle.getCallingUserId(); 9585 synchronized (getLockObject()) { 9586 // Ensure the caller is a DO/PO or a block uninstall delegate 9587 enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 9588 DELEGATION_BLOCK_UNINSTALL); 9589 9590 long id = mInjector.binderClearCallingIdentity(); 9591 try { 9592 mIPackageManager.setBlockUninstallForUser(packageName, uninstallBlocked, userId); 9593 } catch (RemoteException re) { 9594 // Shouldn't happen. 9595 Slog.e(LOG_TAG, "Failed to setBlockUninstallForUser", re); 9596 } finally { 9597 mInjector.binderRestoreCallingIdentity(id); 9598 } 9599 } 9600 } 9601 9602 @Override 9603 public boolean isUninstallBlocked(ComponentName who, String packageName) { 9604 // This function should return true if and only if the package is blocked by 9605 // setUninstallBlocked(). It should still return false for other cases of blocks, such as 9606 // when the package is a system app, or when it is an active device admin. 9607 final int userId = UserHandle.getCallingUserId(); 9608 9609 synchronized (getLockObject()) { 9610 if (who != null) { 9611 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9612 } 9613 9614 long id = mInjector.binderClearCallingIdentity(); 9615 try { 9616 return mIPackageManager.getBlockUninstallForUser(packageName, userId); 9617 } catch (RemoteException re) { 9618 // Shouldn't happen. 9619 Slog.e(LOG_TAG, "Failed to getBlockUninstallForUser", re); 9620 } finally { 9621 mInjector.binderRestoreCallingIdentity(id); 9622 } 9623 } 9624 return false; 9625 } 9626 9627 @Override 9628 public void setCrossProfileCallerIdDisabled(ComponentName who, boolean disabled) { 9629 if (!mHasFeature) { 9630 return; 9631 } 9632 Preconditions.checkNotNull(who, "ComponentName is null"); 9633 synchronized (getLockObject()) { 9634 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9635 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9636 if (admin.disableCallerId != disabled) { 9637 admin.disableCallerId = disabled; 9638 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 9639 } 9640 } 9641 } 9642 9643 @Override 9644 public boolean getCrossProfileCallerIdDisabled(ComponentName who) { 9645 if (!mHasFeature) { 9646 return false; 9647 } 9648 Preconditions.checkNotNull(who, "ComponentName is null"); 9649 synchronized (getLockObject()) { 9650 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9651 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9652 return admin.disableCallerId; 9653 } 9654 } 9655 9656 @Override 9657 public boolean getCrossProfileCallerIdDisabledForUser(int userId) { 9658 enforceCrossUsersPermission(userId); 9659 synchronized (getLockObject()) { 9660 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9661 return (admin != null) ? admin.disableCallerId : false; 9662 } 9663 } 9664 9665 @Override 9666 public void setCrossProfileContactsSearchDisabled(ComponentName who, boolean disabled) { 9667 if (!mHasFeature) { 9668 return; 9669 } 9670 Preconditions.checkNotNull(who, "ComponentName is null"); 9671 synchronized (getLockObject()) { 9672 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9673 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9674 if (admin.disableContactsSearch != disabled) { 9675 admin.disableContactsSearch = disabled; 9676 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 9677 } 9678 } 9679 } 9680 9681 @Override 9682 public boolean getCrossProfileContactsSearchDisabled(ComponentName who) { 9683 if (!mHasFeature) { 9684 return false; 9685 } 9686 Preconditions.checkNotNull(who, "ComponentName is null"); 9687 synchronized (getLockObject()) { 9688 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9689 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9690 return admin.disableContactsSearch; 9691 } 9692 } 9693 9694 @Override 9695 public boolean getCrossProfileContactsSearchDisabledForUser(int userId) { 9696 enforceCrossUsersPermission(userId); 9697 synchronized (getLockObject()) { 9698 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9699 return (admin != null) ? admin.disableContactsSearch : false; 9700 } 9701 } 9702 9703 @Override 9704 public void startManagedQuickContact(String actualLookupKey, long actualContactId, 9705 boolean isContactIdIgnored, long actualDirectoryId, Intent originalIntent) { 9706 final Intent intent = QuickContact.rebuildManagedQuickContactsIntent(actualLookupKey, 9707 actualContactId, isContactIdIgnored, actualDirectoryId, originalIntent); 9708 final int callingUserId = UserHandle.getCallingUserId(); 9709 9710 final long ident = mInjector.binderClearCallingIdentity(); 9711 try { 9712 synchronized (getLockObject()) { 9713 final int managedUserId = getManagedUserId(callingUserId); 9714 if (managedUserId < 0) { 9715 return; 9716 } 9717 if (isCrossProfileQuickContactDisabled(managedUserId)) { 9718 if (VERBOSE_LOG) { 9719 Log.v(LOG_TAG, 9720 "Cross-profile contacts access disabled for user " + managedUserId); 9721 } 9722 return; 9723 } 9724 ContactsInternal.startQuickContactWithErrorToastForUser( 9725 mContext, intent, new UserHandle(managedUserId)); 9726 } 9727 } finally { 9728 mInjector.binderRestoreCallingIdentity(ident); 9729 } 9730 } 9731 9732 /** 9733 * @return true if cross-profile QuickContact is disabled 9734 */ 9735 private boolean isCrossProfileQuickContactDisabled(int userId) { 9736 return getCrossProfileCallerIdDisabledForUser(userId) 9737 && getCrossProfileContactsSearchDisabledForUser(userId); 9738 } 9739 9740 /** 9741 * @return the user ID of the managed user that is linked to the current user, if any. 9742 * Otherwise -1. 9743 */ 9744 public int getManagedUserId(int callingUserId) { 9745 if (VERBOSE_LOG) { 9746 Log.v(LOG_TAG, "getManagedUserId: callingUserId=" + callingUserId); 9747 } 9748 9749 for (UserInfo ui : mUserManager.getProfiles(callingUserId)) { 9750 if (ui.id == callingUserId || !ui.isManagedProfile()) { 9751 continue; // Caller user self, or not a managed profile. Skip. 9752 } 9753 if (VERBOSE_LOG) { 9754 Log.v(LOG_TAG, "Managed user=" + ui.id); 9755 } 9756 return ui.id; 9757 } 9758 if (VERBOSE_LOG) { 9759 Log.v(LOG_TAG, "Managed user not found."); 9760 } 9761 return -1; 9762 } 9763 9764 @Override 9765 public void setBluetoothContactSharingDisabled(ComponentName who, boolean disabled) { 9766 if (!mHasFeature) { 9767 return; 9768 } 9769 Preconditions.checkNotNull(who, "ComponentName is null"); 9770 synchronized (getLockObject()) { 9771 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9772 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9773 if (admin.disableBluetoothContactSharing != disabled) { 9774 admin.disableBluetoothContactSharing = disabled; 9775 saveSettingsLocked(UserHandle.getCallingUserId()); 9776 } 9777 } 9778 } 9779 9780 @Override 9781 public boolean getBluetoothContactSharingDisabled(ComponentName who) { 9782 if (!mHasFeature) { 9783 return false; 9784 } 9785 Preconditions.checkNotNull(who, "ComponentName is null"); 9786 synchronized (getLockObject()) { 9787 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 9788 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9789 return admin.disableBluetoothContactSharing; 9790 } 9791 } 9792 9793 @Override 9794 public boolean getBluetoothContactSharingDisabledForUser(int userId) { 9795 // TODO: Should there be a check to make sure this relationship is 9796 // within a profile group? 9797 // enforceSystemProcess("getCrossProfileCallerIdDisabled can only be called by system"); 9798 synchronized (getLockObject()) { 9799 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 9800 return (admin != null) ? admin.disableBluetoothContactSharing : false; 9801 } 9802 } 9803 9804 @Override 9805 public void setLockTaskPackages(ComponentName who, String[] packages) 9806 throws SecurityException { 9807 Preconditions.checkNotNull(who, "ComponentName is null"); 9808 Preconditions.checkNotNull(packages, "packages is null"); 9809 9810 synchronized (getLockObject()) { 9811 enforceCanCallLockTaskLocked(who); 9812 final int userHandle = mInjector.userHandleGetCallingUserId(); 9813 setLockTaskPackagesLocked(userHandle, new ArrayList<>(Arrays.asList(packages))); 9814 } 9815 } 9816 9817 private void setLockTaskPackagesLocked(int userHandle, List<String> packages) { 9818 DevicePolicyData policy = getUserData(userHandle); 9819 policy.mLockTaskPackages = packages; 9820 9821 // Store the settings persistently. 9822 saveSettingsLocked(userHandle); 9823 updateLockTaskPackagesLocked(packages, userHandle); 9824 } 9825 9826 @Override 9827 public String[] getLockTaskPackages(ComponentName who) { 9828 Preconditions.checkNotNull(who, "ComponentName is null"); 9829 9830 final int userHandle = mInjector.binderGetCallingUserHandle().getIdentifier(); 9831 synchronized (getLockObject()) { 9832 enforceCanCallLockTaskLocked(who); 9833 final List<String> packages = getUserData(userHandle).mLockTaskPackages; 9834 return packages.toArray(new String[packages.size()]); 9835 } 9836 } 9837 9838 @Override 9839 public boolean isLockTaskPermitted(String pkg) { 9840 final int userHandle = mInjector.userHandleGetCallingUserId(); 9841 synchronized (getLockObject()) { 9842 return getUserData(userHandle).mLockTaskPackages.contains(pkg); 9843 } 9844 } 9845 9846 @Override 9847 public void setLockTaskFeatures(ComponentName who, int flags) { 9848 Preconditions.checkNotNull(who, "ComponentName is null"); 9849 9850 // Throw if Overview is used without Home. 9851 boolean hasHome = (flags & LOCK_TASK_FEATURE_HOME) != 0; 9852 boolean hasOverview = (flags & LOCK_TASK_FEATURE_OVERVIEW) != 0; 9853 Preconditions.checkArgument(hasHome || !hasOverview, 9854 "Cannot use LOCK_TASK_FEATURE_OVERVIEW without LOCK_TASK_FEATURE_HOME"); 9855 boolean hasNotification = (flags & LOCK_TASK_FEATURE_NOTIFICATIONS) != 0; 9856 Preconditions.checkArgument(hasHome || !hasNotification, 9857 "Cannot use LOCK_TASK_FEATURE_NOTIFICATIONS without LOCK_TASK_FEATURE_HOME"); 9858 9859 final int userHandle = mInjector.userHandleGetCallingUserId(); 9860 synchronized (getLockObject()) { 9861 enforceCanCallLockTaskLocked(who); 9862 setLockTaskFeaturesLocked(userHandle, flags); 9863 } 9864 } 9865 9866 private void setLockTaskFeaturesLocked(int userHandle, int flags) { 9867 DevicePolicyData policy = getUserData(userHandle); 9868 policy.mLockTaskFeatures = flags; 9869 saveSettingsLocked(userHandle); 9870 updateLockTaskFeaturesLocked(flags, userHandle); 9871 } 9872 9873 @Override 9874 public int getLockTaskFeatures(ComponentName who) { 9875 Preconditions.checkNotNull(who, "ComponentName is null"); 9876 final int userHandle = mInjector.userHandleGetCallingUserId(); 9877 synchronized (getLockObject()) { 9878 enforceCanCallLockTaskLocked(who); 9879 return getUserData(userHandle).mLockTaskFeatures; 9880 } 9881 } 9882 9883 private void maybeClearLockTaskPolicyLocked() { 9884 final long ident = mInjector.binderClearCallingIdentity(); 9885 try { 9886 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 9887 for (int i = userInfos.size() - 1; i >= 0; i--) { 9888 int userId = userInfos.get(i).id; 9889 if (canUserUseLockTaskLocked(userId)) { 9890 continue; 9891 } 9892 9893 final List<String> lockTaskPackages = getUserData(userId).mLockTaskPackages; 9894 if (!lockTaskPackages.isEmpty()) { 9895 Slog.d(LOG_TAG, 9896 "User id " + userId + " not affiliated. Clearing lock task packages"); 9897 setLockTaskPackagesLocked(userId, Collections.<String>emptyList()); 9898 } 9899 final int lockTaskFeatures = getUserData(userId).mLockTaskFeatures; 9900 if (lockTaskFeatures != DevicePolicyManager.LOCK_TASK_FEATURE_NONE){ 9901 Slog.d(LOG_TAG, 9902 "User id " + userId + " not affiliated. Clearing lock task features"); 9903 setLockTaskFeaturesLocked(userId, DevicePolicyManager.LOCK_TASK_FEATURE_NONE); 9904 } 9905 } 9906 } finally { 9907 mInjector.binderRestoreCallingIdentity(ident); 9908 } 9909 } 9910 9911 @Override 9912 public void notifyLockTaskModeChanged(boolean isEnabled, String pkg, int userHandle) { 9913 if (!isCallerWithSystemUid()) { 9914 throw new SecurityException("notifyLockTaskModeChanged can only be called by system"); 9915 } 9916 synchronized (getLockObject()) { 9917 final DevicePolicyData policy = getUserData(userHandle); 9918 9919 if (policy.mStatusBarDisabled) { 9920 // Status bar is managed by LockTaskController during LockTask, so we cancel this 9921 // policy when LockTask starts, and reapply it when LockTask ends 9922 setStatusBarDisabledInternal(!isEnabled, userHandle); 9923 } 9924 9925 Bundle adminExtras = new Bundle(); 9926 adminExtras.putString(DeviceAdminReceiver.EXTRA_LOCK_TASK_PACKAGE, pkg); 9927 for (ActiveAdmin admin : policy.mAdminList) { 9928 final boolean ownsDevice = isDeviceOwner(admin.info.getComponent(), userHandle); 9929 final boolean ownsProfile = isProfileOwner(admin.info.getComponent(), userHandle); 9930 if (ownsDevice || ownsProfile) { 9931 if (isEnabled) { 9932 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_ENTERING, 9933 adminExtras, null); 9934 } else { 9935 sendAdminCommandLocked(admin, DeviceAdminReceiver.ACTION_LOCK_TASK_EXITING); 9936 } 9937 } 9938 } 9939 } 9940 } 9941 9942 @Override 9943 public void setGlobalSetting(ComponentName who, String setting, String value) { 9944 Preconditions.checkNotNull(who, "ComponentName is null"); 9945 9946 synchronized (getLockObject()) { 9947 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 9948 9949 // Some settings are no supported any more. However we do not want to throw a 9950 // SecurityException to avoid breaking apps. 9951 if (GLOBAL_SETTINGS_DEPRECATED.contains(setting)) { 9952 Log.i(LOG_TAG, "Global setting no longer supported: " + setting); 9953 return; 9954 } 9955 9956 if (!GLOBAL_SETTINGS_WHITELIST.contains(setting) 9957 && !UserManager.isDeviceInDemoMode(mContext)) { 9958 throw new SecurityException(String.format( 9959 "Permission denial: device owners cannot update %1$s", setting)); 9960 } 9961 9962 if (Settings.Global.STAY_ON_WHILE_PLUGGED_IN.equals(setting)) { 9963 // ignore if it contradicts an existing policy 9964 long timeMs = getMaximumTimeToLock( 9965 who, mInjector.userHandleGetCallingUserId(), /* parent */ false); 9966 if (timeMs > 0 && timeMs < Long.MAX_VALUE) { 9967 return; 9968 } 9969 } 9970 9971 long id = mInjector.binderClearCallingIdentity(); 9972 try { 9973 mInjector.settingsGlobalPutString(setting, value); 9974 } finally { 9975 mInjector.binderRestoreCallingIdentity(id); 9976 } 9977 } 9978 } 9979 9980 @Override 9981 public void setSystemSetting(ComponentName who, String setting, String value) { 9982 Preconditions.checkNotNull(who, "ComponentName is null"); 9983 Preconditions.checkStringNotEmpty(setting, "String setting is null or empty"); 9984 9985 synchronized (getLockObject()) { 9986 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 9987 9988 if (!SYSTEM_SETTINGS_WHITELIST.contains(setting)) { 9989 throw new SecurityException(String.format( 9990 "Permission denial: device owners cannot update %1$s", setting)); 9991 } 9992 9993 final int callingUserId = mInjector.userHandleGetCallingUserId(); 9994 9995 mInjector.binderWithCleanCallingIdentity(() -> 9996 mInjector.settingsSystemPutStringForUser(setting, value, callingUserId)); 9997 } 9998 } 9999 10000 @Override 10001 public boolean setTime(ComponentName who, long millis) { 10002 Preconditions.checkNotNull(who, "ComponentName is null in setTime"); 10003 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10004 // Don't allow set time when auto time is on. 10005 if (mInjector.settingsGlobalGetInt(Global.AUTO_TIME, 0) == 1) { 10006 return false; 10007 } 10008 mInjector.binderWithCleanCallingIdentity(() -> mInjector.getAlarmManager().setTime(millis)); 10009 return true; 10010 } 10011 10012 @Override 10013 public boolean setTimeZone(ComponentName who, String timeZone) { 10014 Preconditions.checkNotNull(who, "ComponentName is null in setTimeZone"); 10015 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10016 // Don't allow set timezone when auto timezone is on. 10017 if (mInjector.settingsGlobalGetInt(Global.AUTO_TIME_ZONE, 0) == 1) { 10018 return false; 10019 } 10020 mInjector.binderWithCleanCallingIdentity(() -> 10021 mInjector.getAlarmManager().setTimeZone(timeZone)); 10022 return true; 10023 } 10024 10025 @Override 10026 public void setSecureSetting(ComponentName who, String setting, String value) { 10027 Preconditions.checkNotNull(who, "ComponentName is null"); 10028 int callingUserId = mInjector.userHandleGetCallingUserId(); 10029 10030 synchronized (getLockObject()) { 10031 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10032 10033 if (isDeviceOwner(who, callingUserId)) { 10034 if (!SECURE_SETTINGS_DEVICEOWNER_WHITELIST.contains(setting) 10035 && !isCurrentUserDemo()) { 10036 throw new SecurityException(String.format( 10037 "Permission denial: Device owners cannot update %1$s", setting)); 10038 } 10039 } else if (!SECURE_SETTINGS_WHITELIST.contains(setting) && !isCurrentUserDemo()) { 10040 throw new SecurityException(String.format( 10041 "Permission denial: Profile owners cannot update %1$s", setting)); 10042 } 10043 if (setting.equals(Settings.Secure.INSTALL_NON_MARKET_APPS)) { 10044 if (getTargetSdk(who.getPackageName(), callingUserId) >= Build.VERSION_CODES.O) { 10045 throw new UnsupportedOperationException(Settings.Secure.INSTALL_NON_MARKET_APPS 10046 + " is deprecated. Please use the user restriction " 10047 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES + " instead."); 10048 } 10049 if (!mUserManager.isManagedProfile(callingUserId)) { 10050 Slog.e(LOG_TAG, "Ignoring setSecureSetting request for " 10051 + setting + ". User restriction " 10052 + UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES 10053 + " should be used instead."); 10054 } else { 10055 try { 10056 setUserRestriction(who, UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, 10057 (Integer.parseInt(value) == 0) ? true : false); 10058 } catch (NumberFormatException exc) { 10059 Slog.e(LOG_TAG, "Invalid value: " + value + " for setting " + setting); 10060 } 10061 } 10062 return; 10063 } 10064 long id = mInjector.binderClearCallingIdentity(); 10065 try { 10066 if (Settings.Secure.DEFAULT_INPUT_METHOD.equals(setting)) { 10067 final String currentValue = mInjector.settingsSecureGetStringForUser( 10068 Settings.Secure.DEFAULT_INPUT_METHOD, callingUserId); 10069 if (!TextUtils.equals(currentValue, value)) { 10070 // Tell the content observer that the next change will be due to the owner 10071 // changing the value. There is a small race condition here that we cannot 10072 // avoid: Change notifications are sent asynchronously, so it is possible 10073 // that there are prior notifications queued up before the one we are about 10074 // to trigger. This is a corner case that will have no impact in practice. 10075 mSetupContentObserver.addPendingChangeByOwnerLocked(callingUserId); 10076 } 10077 getUserData(callingUserId).mCurrentInputMethodSet = true; 10078 saveSettingsLocked(callingUserId); 10079 } 10080 mInjector.settingsSecurePutStringForUser(setting, value, callingUserId); 10081 } finally { 10082 mInjector.binderRestoreCallingIdentity(id); 10083 } 10084 } 10085 } 10086 10087 @Override 10088 public void setMasterVolumeMuted(ComponentName who, boolean on) { 10089 Preconditions.checkNotNull(who, "ComponentName is null"); 10090 synchronized (getLockObject()) { 10091 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10092 setUserRestriction(who, UserManager.DISALLOW_UNMUTE_DEVICE, on); 10093 } 10094 } 10095 10096 @Override 10097 public boolean isMasterVolumeMuted(ComponentName who) { 10098 Preconditions.checkNotNull(who, "ComponentName is null"); 10099 synchronized (getLockObject()) { 10100 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10101 10102 AudioManager audioManager = 10103 (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 10104 return audioManager.isMasterMute(); 10105 } 10106 } 10107 10108 @Override 10109 public void setUserIcon(ComponentName who, Bitmap icon) { 10110 synchronized (getLockObject()) { 10111 Preconditions.checkNotNull(who, "ComponentName is null"); 10112 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10113 10114 int userId = UserHandle.getCallingUserId(); 10115 long id = mInjector.binderClearCallingIdentity(); 10116 try { 10117 mUserManagerInternal.setUserIcon(userId, icon); 10118 } finally { 10119 mInjector.binderRestoreCallingIdentity(id); 10120 } 10121 } 10122 } 10123 10124 @Override 10125 public boolean setKeyguardDisabled(ComponentName who, boolean disabled) { 10126 Preconditions.checkNotNull(who, "ComponentName is null"); 10127 final int userId = mInjector.userHandleGetCallingUserId(); 10128 synchronized (getLockObject()) { 10129 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10130 if (!isUserAffiliatedWithDeviceLocked(userId)) { 10131 throw new SecurityException("Admin " + who + 10132 " is neither the device owner or affiliated user's profile owner."); 10133 } 10134 } 10135 if (isManagedProfile(userId)) { 10136 throw new SecurityException("Managed profile cannot disable keyguard"); 10137 } 10138 10139 long ident = mInjector.binderClearCallingIdentity(); 10140 try { 10141 // disallow disabling the keyguard if a password is currently set 10142 if (disabled && mLockPatternUtils.isSecure(userId)) { 10143 return false; 10144 } 10145 mLockPatternUtils.setLockScreenDisabled(disabled, userId); 10146 mInjector.getIWindowManager().dismissKeyguard(null /* callback */, null /* message */); 10147 } catch (RemoteException e) { 10148 // Same process, does not happen. 10149 } finally { 10150 mInjector.binderRestoreCallingIdentity(ident); 10151 } 10152 return true; 10153 } 10154 10155 @Override 10156 public boolean setStatusBarDisabled(ComponentName who, boolean disabled) { 10157 int userId = UserHandle.getCallingUserId(); 10158 synchronized (getLockObject()) { 10159 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 10160 if (!isUserAffiliatedWithDeviceLocked(userId)) { 10161 throw new SecurityException("Admin " + who + 10162 " is neither the device owner or affiliated user's profile owner."); 10163 } 10164 if (isManagedProfile(userId)) { 10165 throw new SecurityException("Managed profile cannot disable status bar"); 10166 } 10167 DevicePolicyData policy = getUserData(userId); 10168 if (policy.mStatusBarDisabled != disabled) { 10169 boolean isLockTaskMode = false; 10170 try { 10171 isLockTaskMode = mInjector.getIActivityManager().getLockTaskModeState() 10172 != LOCK_TASK_MODE_NONE; 10173 } catch (RemoteException e) { 10174 Slog.e(LOG_TAG, "Failed to get LockTask mode"); 10175 } 10176 if (!isLockTaskMode) { 10177 if (!setStatusBarDisabledInternal(disabled, userId)) { 10178 return false; 10179 } 10180 } 10181 policy.mStatusBarDisabled = disabled; 10182 saveSettingsLocked(userId); 10183 } 10184 } 10185 return true; 10186 } 10187 10188 private boolean setStatusBarDisabledInternal(boolean disabled, int userId) { 10189 long ident = mInjector.binderClearCallingIdentity(); 10190 try { 10191 IStatusBarService statusBarService = IStatusBarService.Stub.asInterface( 10192 ServiceManager.checkService(Context.STATUS_BAR_SERVICE)); 10193 if (statusBarService != null) { 10194 int flags1 = disabled ? STATUS_BAR_DISABLE_MASK : StatusBarManager.DISABLE_NONE; 10195 int flags2 = disabled ? STATUS_BAR_DISABLE2_MASK : StatusBarManager.DISABLE2_NONE; 10196 statusBarService.disableForUser(flags1, mToken, mContext.getPackageName(), userId); 10197 statusBarService.disable2ForUser(flags2, mToken, mContext.getPackageName(), userId); 10198 return true; 10199 } 10200 } catch (RemoteException e) { 10201 Slog.e(LOG_TAG, "Failed to disable the status bar", e); 10202 } finally { 10203 mInjector.binderRestoreCallingIdentity(ident); 10204 } 10205 return false; 10206 } 10207 10208 /** 10209 * We need to update the internal state of whether a user has completed setup or a 10210 * device has paired once. After that, we ignore any changes that reset the 10211 * Settings.Secure.USER_SETUP_COMPLETE or Settings.Secure.DEVICE_PAIRED change 10212 * as we don't trust any apps that might try to reset them. 10213 * <p> 10214 * Unfortunately, we don't know which user's setup state was changed, so we write all of 10215 * them. 10216 */ 10217 void updateUserSetupCompleteAndPaired() { 10218 List<UserInfo> users = mUserManager.getUsers(true); 10219 final int N = users.size(); 10220 for (int i = 0; i < N; i++) { 10221 int userHandle = users.get(i).id; 10222 if (mInjector.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0, 10223 userHandle) != 0) { 10224 DevicePolicyData policy = getUserData(userHandle); 10225 if (!policy.mUserSetupComplete) { 10226 policy.mUserSetupComplete = true; 10227 synchronized (getLockObject()) { 10228 saveSettingsLocked(userHandle); 10229 } 10230 } 10231 } 10232 if (mIsWatch && mInjector.settingsSecureGetIntForUser(Settings.Secure.DEVICE_PAIRED, 0, 10233 userHandle) != 0) { 10234 DevicePolicyData policy = getUserData(userHandle); 10235 if (!policy.mPaired) { 10236 policy.mPaired = true; 10237 synchronized (getLockObject()) { 10238 saveSettingsLocked(userHandle); 10239 } 10240 } 10241 } 10242 } 10243 } 10244 10245 private class SetupContentObserver extends ContentObserver { 10246 private final Uri mUserSetupComplete = Settings.Secure.getUriFor( 10247 Settings.Secure.USER_SETUP_COMPLETE); 10248 private final Uri mDeviceProvisioned = Settings.Global.getUriFor( 10249 Settings.Global.DEVICE_PROVISIONED); 10250 private final Uri mPaired = Settings.Secure.getUriFor(Settings.Secure.DEVICE_PAIRED); 10251 private final Uri mDefaultImeChanged = Settings.Secure.getUriFor( 10252 Settings.Secure.DEFAULT_INPUT_METHOD); 10253 10254 @GuardedBy("getLockObject()") 10255 private Set<Integer> mUserIdsWithPendingChangesByOwner = new ArraySet<>(); 10256 10257 public SetupContentObserver(Handler handler) { 10258 super(handler); 10259 } 10260 10261 void register() { 10262 mInjector.registerContentObserver(mUserSetupComplete, false, this, UserHandle.USER_ALL); 10263 mInjector.registerContentObserver(mDeviceProvisioned, false, this, UserHandle.USER_ALL); 10264 if (mIsWatch) { 10265 mInjector.registerContentObserver(mPaired, false, this, UserHandle.USER_ALL); 10266 } 10267 mInjector.registerContentObserver(mDefaultImeChanged, false, this, UserHandle.USER_ALL); 10268 } 10269 10270 @GuardedBy("getLockObject()") 10271 private void addPendingChangeByOwnerLocked(int userId) { 10272 mUserIdsWithPendingChangesByOwner.add(userId); 10273 } 10274 10275 @Override 10276 public void onChange(boolean selfChange, Uri uri, int userId) { 10277 if (mUserSetupComplete.equals(uri) || (mIsWatch && mPaired.equals(uri))) { 10278 updateUserSetupCompleteAndPaired(); 10279 } else if (mDeviceProvisioned.equals(uri)) { 10280 synchronized (getLockObject()) { 10281 // Set PROPERTY_DEVICE_OWNER_PRESENT, for the SUW case where setting the property 10282 // is delayed until device is marked as provisioned. 10283 setDeviceOwnerSystemPropertyLocked(); 10284 } 10285 } else if (mDefaultImeChanged.equals(uri)) { 10286 synchronized (getLockObject()) { 10287 if (mUserIdsWithPendingChangesByOwner.contains(userId)) { 10288 // This change notification was triggered by the owner changing the current 10289 // IME. Ignore it. 10290 mUserIdsWithPendingChangesByOwner.remove(userId); 10291 } else { 10292 // This change notification was triggered by the user manually changing the 10293 // current IME. 10294 getUserData(userId).mCurrentInputMethodSet = false; 10295 saveSettingsLocked(userId); 10296 } 10297 } 10298 } 10299 } 10300 } 10301 10302 @VisibleForTesting 10303 final class LocalService extends DevicePolicyManagerInternal { 10304 private List<OnCrossProfileWidgetProvidersChangeListener> mWidgetProviderListeners; 10305 10306 @Override 10307 public List<String> getCrossProfileWidgetProviders(int profileId) { 10308 synchronized (getLockObject()) { 10309 if (mOwners == null) { 10310 return Collections.emptyList(); 10311 } 10312 ComponentName ownerComponent = mOwners.getProfileOwnerComponent(profileId); 10313 if (ownerComponent == null) { 10314 return Collections.emptyList(); 10315 } 10316 10317 DevicePolicyData policy = getUserDataUnchecked(profileId); 10318 ActiveAdmin admin = policy.mAdminMap.get(ownerComponent); 10319 10320 if (admin == null || admin.crossProfileWidgetProviders == null 10321 || admin.crossProfileWidgetProviders.isEmpty()) { 10322 return Collections.emptyList(); 10323 } 10324 10325 return admin.crossProfileWidgetProviders; 10326 } 10327 } 10328 10329 @Override 10330 public void addOnCrossProfileWidgetProvidersChangeListener( 10331 OnCrossProfileWidgetProvidersChangeListener listener) { 10332 synchronized (getLockObject()) { 10333 if (mWidgetProviderListeners == null) { 10334 mWidgetProviderListeners = new ArrayList<>(); 10335 } 10336 if (!mWidgetProviderListeners.contains(listener)) { 10337 mWidgetProviderListeners.add(listener); 10338 } 10339 } 10340 } 10341 10342 @Override 10343 public boolean isActiveAdminWithPolicy(int uid, int reqPolicy) { 10344 synchronized (getLockObject()) { 10345 return getActiveAdminWithPolicyForUidLocked(null, reqPolicy, uid) != null; 10346 } 10347 } 10348 10349 private void notifyCrossProfileProvidersChanged(int userId, List<String> packages) { 10350 final List<OnCrossProfileWidgetProvidersChangeListener> listeners; 10351 synchronized (getLockObject()) { 10352 listeners = new ArrayList<>(mWidgetProviderListeners); 10353 } 10354 final int listenerCount = listeners.size(); 10355 for (int i = 0; i < listenerCount; i++) { 10356 OnCrossProfileWidgetProvidersChangeListener listener = listeners.get(i); 10357 listener.onCrossProfileWidgetProvidersChanged(userId, packages); 10358 } 10359 } 10360 10361 @Override 10362 public Intent createShowAdminSupportIntent(int userId, boolean useDefaultIfNoAdmin) { 10363 // This method is called from AM with its lock held, so don't take the DPMS lock. 10364 // b/29242568 10365 10366 ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 10367 if (profileOwner != null) { 10368 return DevicePolicyManagerService.this 10369 .createShowAdminSupportIntent(profileOwner, userId); 10370 } 10371 10372 final Pair<Integer, ComponentName> deviceOwner = 10373 mOwners.getDeviceOwnerUserIdAndComponent(); 10374 if (deviceOwner != null && deviceOwner.first == userId) { 10375 return DevicePolicyManagerService.this 10376 .createShowAdminSupportIntent(deviceOwner.second, userId); 10377 } 10378 10379 // We're not specifying the device admin because there isn't one. 10380 if (useDefaultIfNoAdmin) { 10381 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 10382 } 10383 return null; 10384 } 10385 10386 @Override 10387 public Intent createUserRestrictionSupportIntent(int userId, String userRestriction) { 10388 int source; 10389 long ident = mInjector.binderClearCallingIdentity(); 10390 try { 10391 source = mUserManager.getUserRestrictionSource(userRestriction, 10392 UserHandle.of(userId)); 10393 } finally { 10394 mInjector.binderRestoreCallingIdentity(ident); 10395 } 10396 if ((source & UserManager.RESTRICTION_SOURCE_SYSTEM) != 0) { 10397 /* 10398 * In this case, the user restriction is enforced by the system. 10399 * So we won't show an admin support intent, even if it is also 10400 * enforced by a profile/device owner. 10401 */ 10402 return null; 10403 } 10404 boolean enforcedByDo = (source & UserManager.RESTRICTION_SOURCE_DEVICE_OWNER) != 0; 10405 boolean enforcedByPo = (source & UserManager.RESTRICTION_SOURCE_PROFILE_OWNER) != 0; 10406 if (enforcedByDo && enforcedByPo) { 10407 // In this case, we'll show an admin support dialog that does not 10408 // specify the admin. 10409 return DevicePolicyManagerService.this.createShowAdminSupportIntent(null, userId); 10410 } else if (enforcedByPo) { 10411 final ComponentName profileOwner = mOwners.getProfileOwnerComponent(userId); 10412 if (profileOwner != null) { 10413 return DevicePolicyManagerService.this 10414 .createShowAdminSupportIntent(profileOwner, userId); 10415 } 10416 // This could happen if another thread has changed the profile owner since we called 10417 // getUserRestrictionSource 10418 return null; 10419 } else if (enforcedByDo) { 10420 final Pair<Integer, ComponentName> deviceOwner 10421 = mOwners.getDeviceOwnerUserIdAndComponent(); 10422 if (deviceOwner != null) { 10423 return DevicePolicyManagerService.this 10424 .createShowAdminSupportIntent(deviceOwner.second, deviceOwner.first); 10425 } 10426 // This could happen if another thread has changed the device owner since we called 10427 // getUserRestrictionSource 10428 return null; 10429 } 10430 return null; 10431 } 10432 10433 @Override 10434 public boolean isUserAffiliatedWithDevice(int userId) { 10435 return DevicePolicyManagerService.this.isUserAffiliatedWithDeviceLocked(userId); 10436 } 10437 10438 @Override 10439 public void reportSeparateProfileChallengeChanged(@UserIdInt int userId) { 10440 synchronized (getLockObject()) { 10441 updateMaximumTimeToLockLocked(userId); 10442 } 10443 } 10444 10445 @Override 10446 public boolean canUserHaveUntrustedCredentialReset(@UserIdInt int userId) { 10447 return DevicePolicyManagerService.this.canUserHaveUntrustedCredentialReset(userId); 10448 } 10449 10450 @Override 10451 public CharSequence getPrintingDisabledReasonForUser(@UserIdInt int userId) { 10452 synchronized (getLockObject()) { 10453 DevicePolicyData policy = getUserData(userId); 10454 if (!mUserManager.hasUserRestriction(UserManager.DISALLOW_PRINTING, 10455 UserHandle.of(userId))) { 10456 Log.e(LOG_TAG, "printing is enabled"); 10457 return null; 10458 } 10459 String ownerPackage = mOwners.getProfileOwnerPackage(userId); 10460 if (ownerPackage == null) { 10461 ownerPackage = mOwners.getDeviceOwnerPackageName(); 10462 } 10463 PackageManager pm = mInjector.getPackageManager(); 10464 PackageInfo packageInfo; 10465 try { 10466 packageInfo = pm.getPackageInfo(ownerPackage, 0); 10467 } catch (NameNotFoundException e) { 10468 Log.e(LOG_TAG, "getPackageInfo error", e); 10469 return null; 10470 } 10471 if (packageInfo == null) { 10472 Log.e(LOG_TAG, "packageInfo is inexplicably null"); 10473 return null; 10474 } 10475 ApplicationInfo appInfo = packageInfo.applicationInfo; 10476 if (appInfo == null) { 10477 Log.e(LOG_TAG, "appInfo is inexplicably null"); 10478 return null; 10479 } 10480 CharSequence appLabel = pm.getApplicationLabel(appInfo); 10481 if (appLabel == null) { 10482 Log.e(LOG_TAG, "appLabel is inexplicably null"); 10483 return null; 10484 } 10485 return ((Context) ActivityThread.currentActivityThread().getSystemUiContext()) 10486 .getResources().getString(R.string.printing_disabled_by, appLabel); 10487 } 10488 } 10489 10490 @Override 10491 protected DevicePolicyCache getDevicePolicyCache() { 10492 return mPolicyCache; 10493 } 10494 } 10495 10496 private Intent createShowAdminSupportIntent(ComponentName admin, int userId) { 10497 // This method is called with AMS lock held, so don't take DPMS lock 10498 final Intent intent = new Intent(Settings.ACTION_SHOW_ADMIN_SUPPORT_DETAILS); 10499 intent.putExtra(Intent.EXTRA_USER_ID, userId); 10500 intent.putExtra(DevicePolicyManager.EXTRA_DEVICE_ADMIN, admin); 10501 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 10502 return intent; 10503 } 10504 10505 @Override 10506 public Intent createAdminSupportIntent(String restriction) { 10507 Preconditions.checkNotNull(restriction); 10508 final int uid = mInjector.binderGetCallingUid(); 10509 final int userId = UserHandle.getUserId(uid); 10510 Intent intent = null; 10511 if (DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction) || 10512 DevicePolicyManager.POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction) || 10513 DevicePolicyManager.POLICY_MANDATORY_BACKUPS.equals(restriction)) { 10514 synchronized (getLockObject()) { 10515 final DevicePolicyData policy = getUserData(userId); 10516 final int N = policy.mAdminList.size(); 10517 for (int i = 0; i < N; i++) { 10518 final ActiveAdmin admin = policy.mAdminList.get(i); 10519 if ((admin.disableCamera && 10520 DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) || 10521 (admin.disableScreenCapture && DevicePolicyManager 10522 .POLICY_DISABLE_SCREEN_CAPTURE.equals(restriction)) || 10523 (admin.mandatoryBackupTransport != null && DevicePolicyManager 10524 .POLICY_MANDATORY_BACKUPS.equals(restriction))) { 10525 intent = createShowAdminSupportIntent(admin.info.getComponent(), userId); 10526 break; 10527 } 10528 } 10529 // For the camera, a device owner on a different user can disable it globally, 10530 // so we need an additional check. 10531 if (intent == null 10532 && DevicePolicyManager.POLICY_DISABLE_CAMERA.equals(restriction)) { 10533 final ActiveAdmin admin = getDeviceOwnerAdminLocked(); 10534 if (admin != null && admin.disableCamera) { 10535 intent = createShowAdminSupportIntent(admin.info.getComponent(), 10536 mOwners.getDeviceOwnerUserId()); 10537 } 10538 } 10539 } 10540 } else { 10541 // if valid, |restriction| can only be a user restriction 10542 intent = mLocalService.createUserRestrictionSupportIntent(userId, restriction); 10543 } 10544 if (intent != null) { 10545 intent.putExtra(DevicePolicyManager.EXTRA_RESTRICTION, restriction); 10546 } 10547 return intent; 10548 } 10549 10550 /** 10551 * Returns true if specified admin is allowed to limit passwords and has a 10552 * {@code minimumPasswordMetrics.quality} of at least {@code minPasswordQuality} 10553 */ 10554 private static boolean isLimitPasswordAllowed(ActiveAdmin admin, int minPasswordQuality) { 10555 if (admin.minimumPasswordMetrics.quality < minPasswordQuality) { 10556 return false; 10557 } 10558 return admin.info.usesPolicy(DeviceAdminInfo.USES_POLICY_LIMIT_PASSWORD); 10559 } 10560 10561 @Override 10562 public void setSystemUpdatePolicy(ComponentName who, SystemUpdatePolicy policy) { 10563 if (policy != null) { 10564 // throws exception if policy type is invalid 10565 policy.validateType(); 10566 // throws exception if freeze period is invalid 10567 policy.validateFreezePeriods(); 10568 Pair<LocalDate, LocalDate> record = mOwners.getSystemUpdateFreezePeriodRecord(); 10569 // throws exception if freeze period is incompatible with previous freeze period record 10570 policy.validateAgainstPreviousFreezePeriod(record.first, record.second, 10571 LocalDate.now()); 10572 } 10573 synchronized (getLockObject()) { 10574 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 10575 if (policy == null) { 10576 mOwners.clearSystemUpdatePolicy(); 10577 } else { 10578 mOwners.setSystemUpdatePolicy(policy); 10579 updateSystemUpdateFreezePeriodsRecord(/* saveIfChanged */ false); 10580 } 10581 mOwners.writeDeviceOwner(); 10582 } 10583 mContext.sendBroadcastAsUser( 10584 new Intent(DevicePolicyManager.ACTION_SYSTEM_UPDATE_POLICY_CHANGED), 10585 UserHandle.SYSTEM); 10586 } 10587 10588 @Override 10589 public SystemUpdatePolicy getSystemUpdatePolicy() { 10590 synchronized (getLockObject()) { 10591 SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 10592 if (policy != null && !policy.isValid()) { 10593 Slog.w(LOG_TAG, "Stored system update policy is invalid, return null instead."); 10594 return null; 10595 } 10596 return policy; 10597 } 10598 } 10599 10600 private static boolean withinRange(Pair<LocalDate, LocalDate> range, LocalDate date) { 10601 return (!date.isBefore(range.first) && !date.isAfter(range.second)); 10602 } 10603 10604 /** 10605 * keeps track of the last continuous period when the system is under OTA freeze. 10606 * 10607 * DPMS keeps track of the previous dates during which OTA was freezed as a result of an 10608 * system update policy with freeze periods in effect. This is needed to make robust 10609 * validation on new system update polices, for example to prevent the OTA from being 10610 * frozen for more than 90 days if the DPC keeps resetting a new 24-hour freeze period 10611 * on midnight everyday, or having freeze periods closer than 60 days apart by DPC resetting 10612 * a new freeze period after a few days. 10613 * 10614 * @param saveIfChanged whether to persist the result on disk if freeze period record is 10615 * updated. This should only be set to {@code false} if there is a guaranteed 10616 * mOwners.writeDeviceOwner() later in the control flow to reduce the number of 10617 * disk writes. Otherwise you risk inconsistent on-disk state. 10618 * 10619 * @see SystemUpdatePolicy#validateAgainstPreviousFreezePeriod 10620 */ 10621 private void updateSystemUpdateFreezePeriodsRecord(boolean saveIfChanged) { 10622 Slog.d(LOG_TAG, "updateSystemUpdateFreezePeriodsRecord"); 10623 synchronized (getLockObject()) { 10624 final SystemUpdatePolicy policy = mOwners.getSystemUpdatePolicy(); 10625 if (policy == null) { 10626 return; 10627 } 10628 final LocalDate now = LocalDate.now(); 10629 final Pair<LocalDate, LocalDate> currentPeriod = policy.getCurrentFreezePeriod(now); 10630 if (currentPeriod == null) { 10631 return; 10632 } 10633 final Pair<LocalDate, LocalDate> record = mOwners.getSystemUpdateFreezePeriodRecord(); 10634 final LocalDate start = record.first; 10635 final LocalDate end = record.second; 10636 final boolean changed; 10637 if (end == null || start == null) { 10638 // Start a new period if there is none at the moment 10639 changed = mOwners.setSystemUpdateFreezePeriodRecord(now, now); 10640 } else if (now.equals(end.plusDays(1))) { 10641 // Extend the existing period 10642 changed = mOwners.setSystemUpdateFreezePeriodRecord(start, now); 10643 } else if (now.isAfter(end.plusDays(1))) { 10644 if (withinRange(currentPeriod, start) && withinRange(currentPeriod, end)) { 10645 // The device might be off for some period. If the past freeze record 10646 // is within range of the current freeze period, assume the device was off 10647 // during the period [end, now] and extend the freeze record to [start, now]. 10648 changed = mOwners.setSystemUpdateFreezePeriodRecord(start, now); 10649 } else { 10650 changed = mOwners.setSystemUpdateFreezePeriodRecord(now, now); 10651 } 10652 } else if (now.isBefore(start)) { 10653 // Systm clock was adjusted backwards, restart record 10654 changed = mOwners.setSystemUpdateFreezePeriodRecord(now, now); 10655 } else /* start <= now <= end */ { 10656 changed = false; 10657 } 10658 if (changed && saveIfChanged) { 10659 mOwners.writeDeviceOwner(); 10660 } 10661 } 10662 } 10663 10664 @Override 10665 public void clearSystemUpdatePolicyFreezePeriodRecord() { 10666 enforceShell("clearSystemUpdatePolicyFreezePeriodRecord"); 10667 synchronized (getLockObject()) { 10668 // Print out current record to help diagnosed CTS failures 10669 Slog.i(LOG_TAG, "Clear freeze period record: " 10670 + mOwners.getSystemUpdateFreezePeriodRecordAsString()); 10671 if (mOwners.setSystemUpdateFreezePeriodRecord(null, null)) { 10672 mOwners.writeDeviceOwner(); 10673 } 10674 } 10675 } 10676 10677 /** 10678 * Checks if the caller of the method is the device owner app. 10679 * 10680 * @param callerUid UID of the caller. 10681 * @return true if the caller is the device owner app 10682 */ 10683 @VisibleForTesting 10684 boolean isCallerDeviceOwner(int callerUid) { 10685 synchronized (getLockObject()) { 10686 if (!mOwners.hasDeviceOwner()) { 10687 return false; 10688 } 10689 if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) { 10690 return false; 10691 } 10692 final String deviceOwnerPackageName = mOwners.getDeviceOwnerComponent() 10693 .getPackageName(); 10694 try { 10695 String[] pkgs = mInjector.getIPackageManager().getPackagesForUid(callerUid); 10696 for (String pkg : pkgs) { 10697 if (deviceOwnerPackageName.equals(pkg)) { 10698 return true; 10699 } 10700 } 10701 } catch (RemoteException e) { 10702 return false; 10703 } 10704 } 10705 10706 return false; 10707 } 10708 10709 @Override 10710 public void notifyPendingSystemUpdate(@Nullable SystemUpdateInfo info) { 10711 mContext.enforceCallingOrSelfPermission(permission.NOTIFY_PENDING_SYSTEM_UPDATE, 10712 "Only the system update service can broadcast update information"); 10713 10714 if (UserHandle.getCallingUserId() != UserHandle.USER_SYSTEM) { 10715 Slog.w(LOG_TAG, "Only the system update service in the system user " + 10716 "can broadcast update information."); 10717 return; 10718 } 10719 10720 if (!mOwners.saveSystemUpdateInfo(info)) { 10721 // Pending system update hasn't changed, don't send duplicate notification. 10722 return; 10723 } 10724 10725 final Intent intent = new Intent(DeviceAdminReceiver.ACTION_NOTIFY_PENDING_SYSTEM_UPDATE) 10726 .putExtra(DeviceAdminReceiver.EXTRA_SYSTEM_UPDATE_RECEIVED_TIME, 10727 info == null ? -1 : info.getReceivedTime()); 10728 10729 final long ident = mInjector.binderClearCallingIdentity(); 10730 try { 10731 synchronized (getLockObject()) { 10732 // Broadcast to device owner first if there is one. 10733 if (mOwners.hasDeviceOwner()) { 10734 final UserHandle deviceOwnerUser = 10735 UserHandle.of(mOwners.getDeviceOwnerUserId()); 10736 intent.setComponent(mOwners.getDeviceOwnerComponent()); 10737 mContext.sendBroadcastAsUser(intent, deviceOwnerUser); 10738 } 10739 } 10740 // Get running users. 10741 final int runningUserIds[]; 10742 try { 10743 runningUserIds = mInjector.getIActivityManager().getRunningUserIds(); 10744 } catch (RemoteException e) { 10745 // Shouldn't happen. 10746 Log.e(LOG_TAG, "Could not retrieve the list of running users", e); 10747 return; 10748 } 10749 // Send broadcasts to corresponding profile owners if any. 10750 for (final int userId : runningUserIds) { 10751 synchronized (getLockObject()) { 10752 final ComponentName profileOwnerPackage = 10753 mOwners.getProfileOwnerComponent(userId); 10754 if (profileOwnerPackage != null) { 10755 intent.setComponent(profileOwnerPackage); 10756 mContext.sendBroadcastAsUser(intent, UserHandle.of(userId)); 10757 } 10758 } 10759 } 10760 } finally { 10761 mInjector.binderRestoreCallingIdentity(ident); 10762 } 10763 } 10764 10765 @Override 10766 public SystemUpdateInfo getPendingSystemUpdate(ComponentName admin) { 10767 Preconditions.checkNotNull(admin, "ComponentName is null"); 10768 enforceProfileOrDeviceOwner(admin); 10769 10770 return mOwners.getSystemUpdateInfo(); 10771 } 10772 10773 @Override 10774 public void setPermissionPolicy(ComponentName admin, String callerPackage, int policy) 10775 throws RemoteException { 10776 int userId = UserHandle.getCallingUserId(); 10777 synchronized (getLockObject()) { 10778 // Ensure the caller is a DO/PO or a permission grant state delegate. 10779 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 10780 DELEGATION_PERMISSION_GRANT); 10781 DevicePolicyData userPolicy = getUserData(userId); 10782 if (userPolicy.mPermissionPolicy != policy) { 10783 userPolicy.mPermissionPolicy = policy; 10784 saveSettingsLocked(userId); 10785 } 10786 } 10787 } 10788 10789 @Override 10790 public int getPermissionPolicy(ComponentName admin) throws RemoteException { 10791 int userId = UserHandle.getCallingUserId(); 10792 synchronized (getLockObject()) { 10793 DevicePolicyData userPolicy = getUserData(userId); 10794 return userPolicy.mPermissionPolicy; 10795 } 10796 } 10797 10798 @Override 10799 public boolean setPermissionGrantState(ComponentName admin, String callerPackage, 10800 String packageName, String permission, int grantState) throws RemoteException { 10801 UserHandle user = mInjector.binderGetCallingUserHandle(); 10802 synchronized (getLockObject()) { 10803 // Ensure the caller is a DO/PO or a permission grant state delegate. 10804 enforceCanManageScope(admin, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, 10805 DELEGATION_PERMISSION_GRANT); 10806 long ident = mInjector.binderClearCallingIdentity(); 10807 try { 10808 if (getTargetSdk(packageName, user.getIdentifier()) 10809 < android.os.Build.VERSION_CODES.M) { 10810 return false; 10811 } 10812 if (!isRuntimePermission(permission)) { 10813 return false; 10814 } 10815 final PackageManager packageManager = mInjector.getPackageManager(); 10816 switch (grantState) { 10817 case DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED: { 10818 mInjector.getPackageManagerInternal().grantRuntimePermission(packageName, 10819 permission, user.getIdentifier(), true /* override policy */); 10820 packageManager.updatePermissionFlags(permission, packageName, 10821 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 10822 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 10823 } break; 10824 10825 case DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED: { 10826 mInjector.getPackageManagerInternal().revokeRuntimePermission(packageName, 10827 permission, user.getIdentifier(), true /* override policy */); 10828 packageManager.updatePermissionFlags(permission, packageName, 10829 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 10830 PackageManager.FLAG_PERMISSION_POLICY_FIXED, user); 10831 } break; 10832 10833 case DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT: { 10834 packageManager.updatePermissionFlags(permission, packageName, 10835 PackageManager.FLAG_PERMISSION_POLICY_FIXED, 0, user); 10836 } break; 10837 } 10838 return true; 10839 } catch (SecurityException se) { 10840 return false; 10841 } catch (NameNotFoundException e) { 10842 return false; 10843 } finally { 10844 mInjector.binderRestoreCallingIdentity(ident); 10845 } 10846 } 10847 } 10848 10849 @Override 10850 public int getPermissionGrantState(ComponentName admin, String callerPackage, 10851 String packageName, String permission) throws RemoteException { 10852 PackageManager packageManager = mInjector.getPackageManager(); 10853 10854 UserHandle user = mInjector.binderGetCallingUserHandle(); 10855 if (!isCallerWithSystemUid()) { 10856 // Ensure the caller is a DO/PO or a permission grant state delegate. 10857 enforceCanManageScope(admin, callerPackage, 10858 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER, DELEGATION_PERMISSION_GRANT); 10859 } 10860 synchronized (getLockObject()) { 10861 long ident = mInjector.binderClearCallingIdentity(); 10862 try { 10863 int granted = mIPackageManager.checkPermission(permission, 10864 packageName, user.getIdentifier()); 10865 int permFlags = packageManager.getPermissionFlags(permission, packageName, user); 10866 if ((permFlags & PackageManager.FLAG_PERMISSION_POLICY_FIXED) 10867 != PackageManager.FLAG_PERMISSION_POLICY_FIXED) { 10868 // Not controlled by policy 10869 return DevicePolicyManager.PERMISSION_GRANT_STATE_DEFAULT; 10870 } else { 10871 // Policy controlled so return result based on permission grant state 10872 return granted == PackageManager.PERMISSION_GRANTED 10873 ? DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED 10874 : DevicePolicyManager.PERMISSION_GRANT_STATE_DENIED; 10875 } 10876 } finally { 10877 mInjector.binderRestoreCallingIdentity(ident); 10878 } 10879 } 10880 } 10881 10882 boolean isPackageInstalledForUser(String packageName, int userHandle) { 10883 try { 10884 PackageInfo pi = mInjector.getIPackageManager().getPackageInfo(packageName, 0, 10885 userHandle); 10886 return (pi != null) && (pi.applicationInfo.flags != 0); 10887 } catch (RemoteException re) { 10888 throw new RuntimeException("Package manager has died", re); 10889 } 10890 } 10891 10892 public boolean isRuntimePermission(String permissionName) throws NameNotFoundException { 10893 final PackageManager packageManager = mInjector.getPackageManager(); 10894 PermissionInfo permissionInfo = packageManager.getPermissionInfo(permissionName, 0); 10895 return (permissionInfo.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE) 10896 == PermissionInfo.PROTECTION_DANGEROUS; 10897 } 10898 10899 @Override 10900 public boolean isProvisioningAllowed(String action, String packageName) { 10901 Preconditions.checkNotNull(packageName); 10902 10903 final int callingUid = mInjector.binderGetCallingUid(); 10904 final long ident = mInjector.binderClearCallingIdentity(); 10905 try { 10906 final int uidForPackage = mInjector.getPackageManager().getPackageUidAsUser( 10907 packageName, UserHandle.getUserId(callingUid)); 10908 Preconditions.checkArgument(callingUid == uidForPackage, 10909 "Caller uid doesn't match the one for the provided package."); 10910 } catch (NameNotFoundException e) { 10911 throw new IllegalArgumentException("Invalid package provided " + packageName, e); 10912 } finally { 10913 mInjector.binderRestoreCallingIdentity(ident); 10914 } 10915 10916 return checkProvisioningPreConditionSkipPermission(action, packageName) == CODE_OK; 10917 } 10918 10919 @Override 10920 public int checkProvisioningPreCondition(String action, String packageName) { 10921 Preconditions.checkNotNull(packageName); 10922 enforceCanManageProfileAndDeviceOwners(); 10923 return checkProvisioningPreConditionSkipPermission(action, packageName); 10924 } 10925 10926 private int checkProvisioningPreConditionSkipPermission(String action, String packageName) { 10927 if (!mHasFeature) { 10928 return CODE_DEVICE_ADMIN_NOT_SUPPORTED; 10929 } 10930 10931 final int callingUserId = mInjector.userHandleGetCallingUserId(); 10932 if (action != null) { 10933 switch (action) { 10934 case DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE: 10935 return checkManagedProfileProvisioningPreCondition(packageName, callingUserId); 10936 case DevicePolicyManager.ACTION_PROVISION_MANAGED_DEVICE: 10937 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 10938 case DevicePolicyManager.ACTION_PROVISION_MANAGED_USER: 10939 return checkManagedUserProvisioningPreCondition(callingUserId); 10940 case DevicePolicyManager.ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE: 10941 return checkManagedShareableDeviceProvisioningPreCondition(callingUserId); 10942 } 10943 } 10944 throw new IllegalArgumentException("Unknown provisioning action " + action); 10945 } 10946 10947 /** 10948 * The device owner can only be set before the setup phase of the primary user has completed, 10949 * except for adb command if no accounts or additional users are present on the device. 10950 */ 10951 private int checkDeviceOwnerProvisioningPreConditionLocked(@Nullable ComponentName owner, 10952 int deviceOwnerUserId, boolean isAdb, boolean hasIncompatibleAccountsOrNonAdb) { 10953 if (mOwners.hasDeviceOwner()) { 10954 return CODE_HAS_DEVICE_OWNER; 10955 } 10956 if (mOwners.hasProfileOwner(deviceOwnerUserId)) { 10957 return CODE_USER_HAS_PROFILE_OWNER; 10958 } 10959 if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) { 10960 return CODE_USER_NOT_RUNNING; 10961 } 10962 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 10963 return CODE_HAS_PAIRED; 10964 } 10965 if (isAdb) { 10966 // if shell command runs after user setup completed check device status. Otherwise, OK. 10967 if (mIsWatch || hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 10968 if (!mInjector.userManagerIsSplitSystemUser()) { 10969 if (mUserManager.getUserCount() > 1) { 10970 return CODE_NONSYSTEM_USER_EXISTS; 10971 } 10972 if (hasIncompatibleAccountsOrNonAdb) { 10973 return CODE_ACCOUNTS_NOT_EMPTY; 10974 } 10975 } else { 10976 // STOPSHIP Do proper check in split user mode 10977 } 10978 } 10979 return CODE_OK; 10980 } else { 10981 if (!mInjector.userManagerIsSplitSystemUser()) { 10982 // In non-split user mode, DO has to be user 0 10983 if (deviceOwnerUserId != UserHandle.USER_SYSTEM) { 10984 return CODE_NOT_SYSTEM_USER; 10985 } 10986 // In non-split user mode, only provision DO before setup wizard completes 10987 if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) { 10988 return CODE_USER_SETUP_COMPLETED; 10989 } 10990 } else { 10991 // STOPSHIP Do proper check in split user mode 10992 } 10993 return CODE_OK; 10994 } 10995 } 10996 10997 private int checkDeviceOwnerProvisioningPreCondition(int deviceOwnerUserId) { 10998 synchronized (getLockObject()) { 10999 // hasIncompatibleAccountsOrNonAdb doesn't matter since the caller is not adb. 11000 return checkDeviceOwnerProvisioningPreConditionLocked(/* owner unknown */ null, 11001 deviceOwnerUserId, /* isAdb= */ false, 11002 /* hasIncompatibleAccountsOrNonAdb=*/ true); 11003 } 11004 } 11005 11006 private int checkManagedProfileProvisioningPreCondition(String packageName, int callingUserId) { 11007 if (!hasFeatureManagedUsers()) { 11008 return CODE_MANAGED_USERS_NOT_SUPPORTED; 11009 } 11010 if (callingUserId == UserHandle.USER_SYSTEM 11011 && mInjector.userManagerIsSplitSystemUser()) { 11012 // Managed-profiles cannot be setup on the system user. 11013 return CODE_SPLIT_SYSTEM_USER_DEVICE_SYSTEM_USER; 11014 } 11015 if (getProfileOwner(callingUserId) != null) { 11016 // Managed user cannot have a managed profile. 11017 return CODE_USER_HAS_PROFILE_OWNER; 11018 } 11019 11020 final long ident = mInjector.binderClearCallingIdentity(); 11021 try { 11022 final UserHandle callingUserHandle = UserHandle.of(callingUserId); 11023 final ComponentName ownerAdmin = getOwnerComponent(packageName, callingUserId); 11024 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_MANAGED_PROFILE, 11025 callingUserHandle)) { 11026 // An admin can initiate provisioning if it has set the restriction. 11027 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 11028 UserManager.DISALLOW_ADD_MANAGED_PROFILE, callingUserId)) { 11029 return CODE_ADD_MANAGED_PROFILE_DISALLOWED; 11030 } 11031 } 11032 boolean canRemoveProfile = true; 11033 if (mUserManager.hasUserRestriction(UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 11034 callingUserHandle)) { 11035 // We can remove a profile if the admin itself has set the restriction. 11036 if (ownerAdmin == null || isAdminAffectedByRestriction(ownerAdmin, 11037 UserManager.DISALLOW_REMOVE_MANAGED_PROFILE, 11038 callingUserId)) { 11039 canRemoveProfile = false; 11040 } 11041 } 11042 if (!mUserManager.canAddMoreManagedProfiles(callingUserId, canRemoveProfile)) { 11043 return CODE_CANNOT_ADD_MANAGED_PROFILE; 11044 } 11045 } finally { 11046 mInjector.binderRestoreCallingIdentity(ident); 11047 } 11048 return CODE_OK; 11049 } 11050 11051 private ComponentName getOwnerComponent(String packageName, int userId) { 11052 if (isDeviceOwnerPackage(packageName, userId)) { 11053 return mOwners.getDeviceOwnerComponent(); 11054 } 11055 if (isProfileOwnerPackage(packageName, userId)) { 11056 return mOwners.getProfileOwnerComponent(userId); 11057 } 11058 return null; 11059 } 11060 11061 /** 11062 * Return device owner or profile owner set on a given user. 11063 */ 11064 private @Nullable ComponentName getOwnerComponent(int userId) { 11065 synchronized (getLockObject()) { 11066 if (mOwners.getDeviceOwnerUserId() == userId) { 11067 return mOwners.getDeviceOwnerComponent(); 11068 } 11069 if (mOwners.hasProfileOwner(userId)) { 11070 return mOwners.getProfileOwnerComponent(userId); 11071 } 11072 } 11073 return null; 11074 } 11075 11076 private int checkManagedUserProvisioningPreCondition(int callingUserId) { 11077 if (!hasFeatureManagedUsers()) { 11078 return CODE_MANAGED_USERS_NOT_SUPPORTED; 11079 } 11080 if (!mInjector.userManagerIsSplitSystemUser()) { 11081 // ACTION_PROVISION_MANAGED_USER only supported on split-user systems. 11082 return CODE_NOT_SYSTEM_USER_SPLIT; 11083 } 11084 if (callingUserId == UserHandle.USER_SYSTEM) { 11085 // System user cannot be a managed user. 11086 return CODE_SYSTEM_USER; 11087 } 11088 if (hasUserSetupCompleted(callingUserId)) { 11089 return CODE_USER_SETUP_COMPLETED; 11090 } 11091 if (mIsWatch && hasPaired(UserHandle.USER_SYSTEM)) { 11092 return CODE_HAS_PAIRED; 11093 } 11094 return CODE_OK; 11095 } 11096 11097 private int checkManagedShareableDeviceProvisioningPreCondition(int callingUserId) { 11098 if (!mInjector.userManagerIsSplitSystemUser()) { 11099 // ACTION_PROVISION_MANAGED_SHAREABLE_DEVICE only supported on split-user systems. 11100 return CODE_NOT_SYSTEM_USER_SPLIT; 11101 } 11102 return checkDeviceOwnerProvisioningPreCondition(callingUserId); 11103 } 11104 11105 private boolean hasFeatureManagedUsers() { 11106 try { 11107 return mIPackageManager.hasSystemFeature(PackageManager.FEATURE_MANAGED_USERS, 0); 11108 } catch (RemoteException e) { 11109 return false; 11110 } 11111 } 11112 11113 @Override 11114 public String getWifiMacAddress(ComponentName admin) { 11115 // Make sure caller has DO. 11116 synchronized (getLockObject()) { 11117 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11118 } 11119 11120 final long ident = mInjector.binderClearCallingIdentity(); 11121 try { 11122 final WifiInfo wifiInfo = mInjector.getWifiManager().getConnectionInfo(); 11123 if (wifiInfo == null) { 11124 return null; 11125 } 11126 return wifiInfo.hasRealMacAddress() ? wifiInfo.getMacAddress() : null; 11127 } finally { 11128 mInjector.binderRestoreCallingIdentity(ident); 11129 } 11130 } 11131 11132 /** 11133 * Returns the target sdk version number that the given packageName was built for 11134 * in the given user. 11135 */ 11136 private int getTargetSdk(String packageName, int userId) { 11137 final ApplicationInfo ai; 11138 try { 11139 ai = mIPackageManager.getApplicationInfo(packageName, 0, userId); 11140 final int targetSdkVersion = ai == null ? 0 : ai.targetSdkVersion; 11141 return targetSdkVersion; 11142 } catch (RemoteException e) { 11143 // Shouldn't happen 11144 return 0; 11145 } 11146 } 11147 11148 @Override 11149 public boolean isManagedProfile(ComponentName admin) { 11150 enforceProfileOrDeviceOwner(admin); 11151 return isManagedProfile(mInjector.userHandleGetCallingUserId()); 11152 } 11153 11154 @Override 11155 public boolean isSystemOnlyUser(ComponentName admin) { 11156 synchronized (getLockObject()) { 11157 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11158 } 11159 final int callingUserId = mInjector.userHandleGetCallingUserId(); 11160 return UserManager.isSplitSystemUser() && callingUserId == UserHandle.USER_SYSTEM; 11161 } 11162 11163 @Override 11164 public void reboot(ComponentName admin) { 11165 Preconditions.checkNotNull(admin); 11166 // Make sure caller has DO. 11167 synchronized (getLockObject()) { 11168 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11169 } 11170 long ident = mInjector.binderClearCallingIdentity(); 11171 try { 11172 // Make sure there are no ongoing calls on the device. 11173 if (mTelephonyManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) { 11174 throw new IllegalStateException("Cannot be called with ongoing call on the device"); 11175 } 11176 mInjector.powerManagerReboot(PowerManager.REBOOT_REQUESTED_BY_DEVICE_OWNER); 11177 } finally { 11178 mInjector.binderRestoreCallingIdentity(ident); 11179 } 11180 } 11181 11182 @Override 11183 public void setShortSupportMessage(@NonNull ComponentName who, CharSequence message) { 11184 if (!mHasFeature) { 11185 return; 11186 } 11187 Preconditions.checkNotNull(who, "ComponentName is null"); 11188 final int userHandle = mInjector.userHandleGetCallingUserId(); 11189 synchronized (getLockObject()) { 11190 ActiveAdmin admin = getActiveAdminForUidLocked(who, 11191 mInjector.binderGetCallingUid()); 11192 if (!TextUtils.equals(admin.shortSupportMessage, message)) { 11193 admin.shortSupportMessage = message; 11194 saveSettingsLocked(userHandle); 11195 } 11196 } 11197 } 11198 11199 @Override 11200 public CharSequence getShortSupportMessage(@NonNull ComponentName who) { 11201 if (!mHasFeature) { 11202 return null; 11203 } 11204 Preconditions.checkNotNull(who, "ComponentName is null"); 11205 synchronized (getLockObject()) { 11206 ActiveAdmin admin = getActiveAdminForUidLocked(who, 11207 mInjector.binderGetCallingUid()); 11208 return admin.shortSupportMessage; 11209 } 11210 } 11211 11212 @Override 11213 public void setLongSupportMessage(@NonNull ComponentName who, CharSequence message) { 11214 if (!mHasFeature) { 11215 return; 11216 } 11217 Preconditions.checkNotNull(who, "ComponentName is null"); 11218 final int userHandle = mInjector.userHandleGetCallingUserId(); 11219 synchronized (getLockObject()) { 11220 ActiveAdmin admin = getActiveAdminForUidLocked(who, 11221 mInjector.binderGetCallingUid()); 11222 if (!TextUtils.equals(admin.longSupportMessage, message)) { 11223 admin.longSupportMessage = message; 11224 saveSettingsLocked(userHandle); 11225 } 11226 } 11227 } 11228 11229 @Override 11230 public CharSequence getLongSupportMessage(@NonNull ComponentName who) { 11231 if (!mHasFeature) { 11232 return null; 11233 } 11234 Preconditions.checkNotNull(who, "ComponentName is null"); 11235 synchronized (getLockObject()) { 11236 ActiveAdmin admin = getActiveAdminForUidLocked(who, 11237 mInjector.binderGetCallingUid()); 11238 return admin.longSupportMessage; 11239 } 11240 } 11241 11242 @Override 11243 public CharSequence getShortSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 11244 if (!mHasFeature) { 11245 return null; 11246 } 11247 Preconditions.checkNotNull(who, "ComponentName is null"); 11248 if (!isCallerWithSystemUid()) { 11249 throw new SecurityException("Only the system can query support message for user"); 11250 } 11251 synchronized (getLockObject()) { 11252 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 11253 if (admin != null) { 11254 return admin.shortSupportMessage; 11255 } 11256 } 11257 return null; 11258 } 11259 11260 @Override 11261 public CharSequence getLongSupportMessageForUser(@NonNull ComponentName who, int userHandle) { 11262 if (!mHasFeature) { 11263 return null; 11264 } 11265 Preconditions.checkNotNull(who, "ComponentName is null"); 11266 if (!isCallerWithSystemUid()) { 11267 throw new SecurityException("Only the system can query support message for user"); 11268 } 11269 synchronized (getLockObject()) { 11270 ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userHandle); 11271 if (admin != null) { 11272 return admin.longSupportMessage; 11273 } 11274 } 11275 return null; 11276 } 11277 11278 @Override 11279 public void setOrganizationColor(@NonNull ComponentName who, int color) { 11280 if (!mHasFeature) { 11281 return; 11282 } 11283 Preconditions.checkNotNull(who, "ComponentName is null"); 11284 final int userHandle = mInjector.userHandleGetCallingUserId(); 11285 enforceManagedProfile(userHandle, "set organization color"); 11286 synchronized (getLockObject()) { 11287 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11288 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11289 admin.organizationColor = color; 11290 saveSettingsLocked(userHandle); 11291 } 11292 } 11293 11294 @Override 11295 public void setOrganizationColorForUser(int color, int userId) { 11296 if (!mHasFeature) { 11297 return; 11298 } 11299 enforceFullCrossUsersPermission(userId); 11300 enforceManageUsers(); 11301 enforceManagedProfile(userId, "set organization color"); 11302 synchronized (getLockObject()) { 11303 ActiveAdmin admin = getProfileOwnerAdminLocked(userId); 11304 admin.organizationColor = color; 11305 saveSettingsLocked(userId); 11306 } 11307 } 11308 11309 @Override 11310 public int getOrganizationColor(@NonNull ComponentName who) { 11311 if (!mHasFeature) { 11312 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 11313 } 11314 Preconditions.checkNotNull(who, "ComponentName is null"); 11315 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization color"); 11316 synchronized (getLockObject()) { 11317 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11318 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11319 return admin.organizationColor; 11320 } 11321 } 11322 11323 @Override 11324 public int getOrganizationColorForUser(int userHandle) { 11325 if (!mHasFeature) { 11326 return ActiveAdmin.DEF_ORGANIZATION_COLOR; 11327 } 11328 enforceFullCrossUsersPermission(userHandle); 11329 enforceManagedProfile(userHandle, "get organization color"); 11330 synchronized (getLockObject()) { 11331 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 11332 return (profileOwner != null) 11333 ? profileOwner.organizationColor 11334 : ActiveAdmin.DEF_ORGANIZATION_COLOR; 11335 } 11336 } 11337 11338 @Override 11339 public void setOrganizationName(@NonNull ComponentName who, CharSequence text) { 11340 if (!mHasFeature) { 11341 return; 11342 } 11343 Preconditions.checkNotNull(who, "ComponentName is null"); 11344 final int userHandle = mInjector.userHandleGetCallingUserId(); 11345 11346 synchronized (getLockObject()) { 11347 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11348 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11349 if (!TextUtils.equals(admin.organizationName, text)) { 11350 admin.organizationName = (text == null || text.length() == 0) 11351 ? null : text.toString(); 11352 saveSettingsLocked(userHandle); 11353 } 11354 } 11355 } 11356 11357 @Override 11358 public CharSequence getOrganizationName(@NonNull ComponentName who) { 11359 if (!mHasFeature) { 11360 return null; 11361 } 11362 Preconditions.checkNotNull(who, "ComponentName is null"); 11363 enforceManagedProfile(mInjector.userHandleGetCallingUserId(), "get organization name"); 11364 synchronized (getLockObject()) { 11365 ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11366 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11367 return admin.organizationName; 11368 } 11369 } 11370 11371 @Override 11372 public CharSequence getDeviceOwnerOrganizationName() { 11373 if (!mHasFeature) { 11374 return null; 11375 } 11376 enforceDeviceOwnerOrManageUsers(); 11377 synchronized (getLockObject()) { 11378 final ActiveAdmin deviceOwnerAdmin = getDeviceOwnerAdminLocked(); 11379 return deviceOwnerAdmin == null ? null : deviceOwnerAdmin.organizationName; 11380 } 11381 } 11382 11383 @Override 11384 public CharSequence getOrganizationNameForUser(int userHandle) { 11385 if (!mHasFeature) { 11386 return null; 11387 } 11388 enforceFullCrossUsersPermission(userHandle); 11389 enforceManagedProfile(userHandle, "get organization name"); 11390 synchronized (getLockObject()) { 11391 ActiveAdmin profileOwner = getProfileOwnerAdminLocked(userHandle); 11392 return (profileOwner != null) 11393 ? profileOwner.organizationName 11394 : null; 11395 } 11396 } 11397 11398 @Override 11399 public List<String> setMeteredDataDisabledPackages(ComponentName who, List<String> packageNames) { 11400 Preconditions.checkNotNull(who); 11401 Preconditions.checkNotNull(packageNames); 11402 11403 if (!mHasFeature) { 11404 return packageNames; 11405 } 11406 synchronized (getLockObject()) { 11407 final ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11408 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11409 final int callingUserId = mInjector.userHandleGetCallingUserId(); 11410 final long identity = mInjector.binderClearCallingIdentity(); 11411 try { 11412 final List<String> excludedPkgs 11413 = removeInvalidPkgsForMeteredDataRestriction(callingUserId, packageNames); 11414 admin.meteredDisabledPackages = packageNames; 11415 pushMeteredDisabledPackagesLocked(callingUserId); 11416 saveSettingsLocked(callingUserId); 11417 return excludedPkgs; 11418 } finally { 11419 mInjector.binderRestoreCallingIdentity(identity); 11420 } 11421 } 11422 } 11423 11424 private List<String> removeInvalidPkgsForMeteredDataRestriction( 11425 int userId, List<String> pkgNames) { 11426 final Set<String> activeAdmins = getActiveAdminPackagesLocked(userId); 11427 final List<String> excludedPkgs = new ArrayList<>(); 11428 for (int i = pkgNames.size() - 1; i >= 0; --i) { 11429 final String pkgName = pkgNames.get(i); 11430 // If the package is an active admin, don't restrict it. 11431 if (activeAdmins.contains(pkgName)) { 11432 excludedPkgs.add(pkgName); 11433 continue; 11434 } 11435 // If the package doesn't exist, don't restrict it. 11436 try { 11437 if (!mInjector.getIPackageManager().isPackageAvailable(pkgName, userId)) { 11438 excludedPkgs.add(pkgName); 11439 } 11440 } catch (RemoteException e) { 11441 // Should not happen 11442 } 11443 } 11444 pkgNames.removeAll(excludedPkgs); 11445 return excludedPkgs; 11446 } 11447 11448 @Override 11449 public List<String> getMeteredDataDisabledPackages(ComponentName who) { 11450 Preconditions.checkNotNull(who); 11451 11452 if (!mHasFeature) { 11453 return new ArrayList<>(); 11454 } 11455 synchronized (getLockObject()) { 11456 final ActiveAdmin admin = getActiveAdminForCallerLocked(who, 11457 DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11458 return admin.meteredDisabledPackages == null 11459 ? new ArrayList<>() : admin.meteredDisabledPackages; 11460 } 11461 } 11462 11463 @Override 11464 public boolean isMeteredDataDisabledPackageForUser(ComponentName who, 11465 String packageName, int userId) { 11466 Preconditions.checkNotNull(who); 11467 11468 if (!mHasFeature) { 11469 return false; 11470 } 11471 if (!isCallerWithSystemUid()) { 11472 throw new SecurityException( 11473 "Only the system can query restricted pkgs for a specific user"); 11474 } 11475 synchronized (getLockObject()) { 11476 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId); 11477 if (admin != null && admin.meteredDisabledPackages != null) { 11478 return admin.meteredDisabledPackages.contains(packageName); 11479 } 11480 } 11481 return false; 11482 } 11483 11484 private void pushMeteredDisabledPackagesLocked(int userId) { 11485 mInjector.getNetworkPolicyManagerInternal().setMeteredRestrictedPackages( 11486 getMeteredDisabledPackagesLocked(userId), userId); 11487 } 11488 11489 private Set<String> getMeteredDisabledPackagesLocked(int userId) { 11490 final ComponentName who = getOwnerComponent(userId); 11491 final Set<String> restrictedPkgs = new ArraySet<>(); 11492 if (who != null) { 11493 final ActiveAdmin admin = getActiveAdminUncheckedLocked(who, userId); 11494 if (admin != null && admin.meteredDisabledPackages != null) { 11495 restrictedPkgs.addAll(admin.meteredDisabledPackages); 11496 } 11497 } 11498 return restrictedPkgs; 11499 } 11500 11501 @Override 11502 public void setAffiliationIds(ComponentName admin, List<String> ids) { 11503 if (!mHasFeature) { 11504 return; 11505 } 11506 if (ids == null) { 11507 throw new IllegalArgumentException("ids must not be null"); 11508 } 11509 for (String id : ids) { 11510 if (TextUtils.isEmpty(id)) { 11511 throw new IllegalArgumentException("ids must not contain empty string"); 11512 } 11513 } 11514 11515 final Set<String> affiliationIds = new ArraySet<>(ids); 11516 final int callingUserId = mInjector.userHandleGetCallingUserId(); 11517 synchronized (getLockObject()) { 11518 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11519 getUserData(callingUserId).mAffiliationIds = affiliationIds; 11520 saveSettingsLocked(callingUserId); 11521 if (callingUserId != UserHandle.USER_SYSTEM && isDeviceOwner(admin, callingUserId)) { 11522 // Affiliation ids specified by the device owner are additionally stored in 11523 // UserHandle.USER_SYSTEM's DevicePolicyData. 11524 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds = affiliationIds; 11525 saveSettingsLocked(UserHandle.USER_SYSTEM); 11526 } 11527 11528 // Affiliation status for any user, not just the calling user, might have changed. 11529 // The device owner user will still be affiliated after changing its affiliation ids, 11530 // but as a result of that other users might become affiliated or un-affiliated. 11531 maybePauseDeviceWideLoggingLocked(); 11532 maybeResumeDeviceWideLoggingLocked(); 11533 maybeClearLockTaskPolicyLocked(); 11534 } 11535 } 11536 11537 @Override 11538 public List<String> getAffiliationIds(ComponentName admin) { 11539 if (!mHasFeature) { 11540 return Collections.emptyList(); 11541 } 11542 11543 Preconditions.checkNotNull(admin); 11544 synchronized (getLockObject()) { 11545 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 11546 return new ArrayList<String>( 11547 getUserData(mInjector.userHandleGetCallingUserId()).mAffiliationIds); 11548 } 11549 } 11550 11551 @Override 11552 public boolean isAffiliatedUser() { 11553 if (!mHasFeature) { 11554 return false; 11555 } 11556 11557 synchronized (getLockObject()) { 11558 return isUserAffiliatedWithDeviceLocked(mInjector.userHandleGetCallingUserId()); 11559 } 11560 } 11561 11562 private boolean isUserAffiliatedWithDeviceLocked(int userId) { 11563 if (!mOwners.hasDeviceOwner()) { 11564 return false; 11565 } 11566 if (userId == mOwners.getDeviceOwnerUserId()) { 11567 // The user that the DO is installed on is always affiliated with the device. 11568 return true; 11569 } 11570 if (userId == UserHandle.USER_SYSTEM) { 11571 // The system user is always affiliated in a DO device, even if the DO is set on a 11572 // different user. This could be the case if the DO is set in the primary user 11573 // of a split user device. 11574 return true; 11575 } 11576 11577 final ComponentName profileOwner = getProfileOwner(userId); 11578 if (profileOwner == null) { 11579 return false; 11580 } 11581 11582 final Set<String> userAffiliationIds = getUserData(userId).mAffiliationIds; 11583 final Set<String> deviceAffiliationIds = 11584 getUserData(UserHandle.USER_SYSTEM).mAffiliationIds; 11585 for (String id : userAffiliationIds) { 11586 if (deviceAffiliationIds.contains(id)) { 11587 return true; 11588 } 11589 } 11590 return false; 11591 } 11592 11593 private boolean areAllUsersAffiliatedWithDeviceLocked() { 11594 final long ident = mInjector.binderClearCallingIdentity(); 11595 try { 11596 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 11597 for (int i = 0; i < userInfos.size(); i++) { 11598 int userId = userInfos.get(i).id; 11599 if (!isUserAffiliatedWithDeviceLocked(userId)) { 11600 Slog.d(LOG_TAG, "User id " + userId + " not affiliated."); 11601 return false; 11602 } 11603 } 11604 } finally { 11605 mInjector.binderRestoreCallingIdentity(ident); 11606 } 11607 11608 return true; 11609 } 11610 11611 @Override 11612 public void setSecurityLoggingEnabled(ComponentName admin, boolean enabled) { 11613 if (!mHasFeature) { 11614 return; 11615 } 11616 Preconditions.checkNotNull(admin); 11617 11618 synchronized (getLockObject()) { 11619 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11620 if (enabled == mInjector.securityLogGetLoggingEnabledProperty()) { 11621 return; 11622 } 11623 mInjector.securityLogSetLoggingEnabledProperty(enabled); 11624 if (enabled) { 11625 mSecurityLogMonitor.start(); 11626 maybePauseDeviceWideLoggingLocked(); 11627 } else { 11628 mSecurityLogMonitor.stop(); 11629 } 11630 } 11631 } 11632 11633 @Override 11634 public boolean isSecurityLoggingEnabled(ComponentName admin) { 11635 if (!mHasFeature) { 11636 return false; 11637 } 11638 11639 synchronized (getLockObject()) { 11640 if (!isCallerWithSystemUid()) { 11641 Preconditions.checkNotNull(admin); 11642 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11643 } 11644 return mInjector.securityLogGetLoggingEnabledProperty(); 11645 } 11646 } 11647 11648 private void recordSecurityLogRetrievalTime() { 11649 synchronized (getLockObject()) { 11650 final long currentTime = System.currentTimeMillis(); 11651 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 11652 if (currentTime > policyData.mLastSecurityLogRetrievalTime) { 11653 policyData.mLastSecurityLogRetrievalTime = currentTime; 11654 saveSettingsLocked(UserHandle.USER_SYSTEM); 11655 } 11656 } 11657 } 11658 11659 @Override 11660 public ParceledListSlice<SecurityEvent> retrievePreRebootSecurityLogs(ComponentName admin) { 11661 if (!mHasFeature) { 11662 return null; 11663 } 11664 11665 Preconditions.checkNotNull(admin); 11666 ensureDeviceOwnerAndAllUsersAffiliated(admin); 11667 11668 if (!mContext.getResources().getBoolean(R.bool.config_supportPreRebootSecurityLogs) 11669 || !mInjector.securityLogGetLoggingEnabledProperty()) { 11670 return null; 11671 } 11672 11673 recordSecurityLogRetrievalTime(); 11674 11675 ArrayList<SecurityEvent> output = new ArrayList<SecurityEvent>(); 11676 try { 11677 SecurityLog.readPreviousEvents(output); 11678 return new ParceledListSlice<SecurityEvent>(output); 11679 } catch (IOException e) { 11680 Slog.w(LOG_TAG, "Fail to read previous events" , e); 11681 return new ParceledListSlice<SecurityEvent>(Collections.<SecurityEvent>emptyList()); 11682 } 11683 } 11684 11685 @Override 11686 public ParceledListSlice<SecurityEvent> retrieveSecurityLogs(ComponentName admin) { 11687 if (!mHasFeature) { 11688 return null; 11689 } 11690 11691 Preconditions.checkNotNull(admin); 11692 ensureDeviceOwnerAndAllUsersAffiliated(admin); 11693 11694 if (!mInjector.securityLogGetLoggingEnabledProperty()) { 11695 return null; 11696 } 11697 11698 recordSecurityLogRetrievalTime(); 11699 11700 List<SecurityEvent> logs = mSecurityLogMonitor.retrieveLogs(); 11701 return logs != null ? new ParceledListSlice<SecurityEvent>(logs) : null; 11702 } 11703 11704 @Override 11705 public long forceSecurityLogs() { 11706 enforceShell("forceSecurityLogs"); 11707 if (!mInjector.securityLogGetLoggingEnabledProperty()) { 11708 throw new IllegalStateException("logging is not available"); 11709 } 11710 return mSecurityLogMonitor.forceLogs(); 11711 } 11712 11713 private void enforceCanManageDeviceAdmin() { 11714 mContext.enforceCallingOrSelfPermission(android.Manifest.permission.MANAGE_DEVICE_ADMINS, 11715 null); 11716 } 11717 11718 private void enforceCanManageProfileAndDeviceOwners() { 11719 mContext.enforceCallingOrSelfPermission( 11720 android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null); 11721 } 11722 11723 private void enforceCallerSystemUserHandle() { 11724 final int callingUid = mInjector.binderGetCallingUid(); 11725 final int userId = UserHandle.getUserId(callingUid); 11726 if (userId != UserHandle.USER_SYSTEM) { 11727 throw new SecurityException("Caller has to be in user 0"); 11728 } 11729 } 11730 11731 @Override 11732 public boolean isUninstallInQueue(final String packageName) { 11733 enforceCanManageDeviceAdmin(); 11734 final int userId = mInjector.userHandleGetCallingUserId(); 11735 Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 11736 synchronized (getLockObject()) { 11737 return mPackagesToRemove.contains(packageUserPair); 11738 } 11739 } 11740 11741 @Override 11742 public void uninstallPackageWithActiveAdmins(final String packageName) { 11743 enforceCanManageDeviceAdmin(); 11744 Preconditions.checkArgument(!TextUtils.isEmpty(packageName)); 11745 11746 final int userId = mInjector.userHandleGetCallingUserId(); 11747 11748 enforceUserUnlocked(userId); 11749 11750 final ComponentName profileOwner = getProfileOwner(userId); 11751 if (profileOwner != null && packageName.equals(profileOwner.getPackageName())) { 11752 throw new IllegalArgumentException("Cannot uninstall a package with a profile owner"); 11753 } 11754 11755 final ComponentName deviceOwner = getDeviceOwnerComponent(/* callingUserOnly= */ false); 11756 if (getDeviceOwnerUserId() == userId && deviceOwner != null 11757 && packageName.equals(deviceOwner.getPackageName())) { 11758 throw new IllegalArgumentException("Cannot uninstall a package with a device owner"); 11759 } 11760 11761 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 11762 synchronized (getLockObject()) { 11763 mPackagesToRemove.add(packageUserPair); 11764 } 11765 11766 // All active admins on the user. 11767 final List<ComponentName> allActiveAdmins = getActiveAdmins(userId); 11768 11769 // Active admins in the target package. 11770 final List<ComponentName> packageActiveAdmins = new ArrayList<>(); 11771 if (allActiveAdmins != null) { 11772 for (ComponentName activeAdmin : allActiveAdmins) { 11773 if (packageName.equals(activeAdmin.getPackageName())) { 11774 packageActiveAdmins.add(activeAdmin); 11775 removeActiveAdmin(activeAdmin, userId); 11776 } 11777 } 11778 } 11779 if (packageActiveAdmins.size() == 0) { 11780 startUninstallIntent(packageName, userId); 11781 } else { 11782 mHandler.postDelayed(new Runnable() { 11783 @Override 11784 public void run() { 11785 for (ComponentName activeAdmin : packageActiveAdmins) { 11786 removeAdminArtifacts(activeAdmin, userId); 11787 } 11788 startUninstallIntent(packageName, userId); 11789 } 11790 }, DEVICE_ADMIN_DEACTIVATE_TIMEOUT); // Start uninstall after timeout anyway. 11791 } 11792 } 11793 11794 @Override 11795 public boolean isDeviceProvisioned() { 11796 enforceManageUsers(); 11797 synchronized (getLockObject()) { 11798 return getUserDataUnchecked(UserHandle.USER_SYSTEM).mUserSetupComplete; 11799 } 11800 } 11801 11802 private boolean isCurrentUserDemo() { 11803 if (UserManager.isDeviceInDemoMode(mContext)) { 11804 final int userId = mInjector.userHandleGetCallingUserId(); 11805 final long callingIdentity = mInjector.binderClearCallingIdentity(); 11806 try { 11807 return mUserManager.getUserInfo(userId).isDemo(); 11808 } finally { 11809 mInjector.binderRestoreCallingIdentity(callingIdentity); 11810 } 11811 } 11812 return false; 11813 } 11814 11815 private void removePackageIfRequired(final String packageName, final int userId) { 11816 if (!packageHasActiveAdmins(packageName, userId)) { 11817 // Will not do anything if uninstall was not requested or was already started. 11818 startUninstallIntent(packageName, userId); 11819 } 11820 } 11821 11822 private void startUninstallIntent(final String packageName, final int userId) { 11823 final Pair<String, Integer> packageUserPair = new Pair<>(packageName, userId); 11824 synchronized (getLockObject()) { 11825 if (!mPackagesToRemove.contains(packageUserPair)) { 11826 // Do nothing if uninstall was not requested or was already started. 11827 return; 11828 } 11829 mPackagesToRemove.remove(packageUserPair); 11830 } 11831 try { 11832 if (mInjector.getIPackageManager().getPackageInfo(packageName, 0, userId) == null) { 11833 // Package does not exist. Nothing to do. 11834 return; 11835 } 11836 } catch (RemoteException re) { 11837 Log.e(LOG_TAG, "Failure talking to PackageManager while getting package info"); 11838 } 11839 11840 try { // force stop the package before uninstalling 11841 mInjector.getIActivityManager().forceStopPackage(packageName, userId); 11842 } catch (RemoteException re) { 11843 Log.e(LOG_TAG, "Failure talking to ActivityManager while force stopping package"); 11844 } 11845 final Uri packageURI = Uri.parse("package:" + packageName); 11846 final Intent uninstallIntent = new Intent(Intent.ACTION_UNINSTALL_PACKAGE, packageURI); 11847 uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 11848 mContext.startActivityAsUser(uninstallIntent, UserHandle.of(userId)); 11849 } 11850 11851 /** 11852 * Removes the admin from the policy. Ideally called after the admin's 11853 * {@link DeviceAdminReceiver#onDisabled(Context, Intent)} has been successfully completed. 11854 * 11855 * @param adminReceiver The admin to remove 11856 * @param userHandle The user for which this admin has to be removed. 11857 */ 11858 private void removeAdminArtifacts(final ComponentName adminReceiver, final int userHandle) { 11859 synchronized (getLockObject()) { 11860 final ActiveAdmin admin = getActiveAdminUncheckedLocked(adminReceiver, userHandle); 11861 if (admin == null) { 11862 return; 11863 } 11864 final DevicePolicyData policy = getUserData(userHandle); 11865 final boolean doProxyCleanup = admin.info.usesPolicy( 11866 DeviceAdminInfo.USES_POLICY_SETS_GLOBAL_PROXY); 11867 policy.mAdminList.remove(admin); 11868 policy.mAdminMap.remove(adminReceiver); 11869 validatePasswordOwnerLocked(policy); 11870 if (doProxyCleanup) { 11871 resetGlobalProxyLocked(policy); 11872 } 11873 pushActiveAdminPackagesLocked(userHandle); 11874 pushMeteredDisabledPackagesLocked(userHandle); 11875 saveSettingsLocked(userHandle); 11876 updateMaximumTimeToLockLocked(userHandle); 11877 policy.mRemovingAdmins.remove(adminReceiver); 11878 11879 Slog.i(LOG_TAG, "Device admin " + adminReceiver + " removed from user " + userHandle); 11880 } 11881 // The removed admin might have disabled camera, so update user 11882 // restrictions. 11883 pushUserRestrictions(userHandle); 11884 } 11885 11886 @Override 11887 public void setDeviceProvisioningConfigApplied() { 11888 enforceManageUsers(); 11889 synchronized (getLockObject()) { 11890 DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 11891 policy.mDeviceProvisioningConfigApplied = true; 11892 saveSettingsLocked(UserHandle.USER_SYSTEM); 11893 } 11894 } 11895 11896 @Override 11897 public boolean isDeviceProvisioningConfigApplied() { 11898 enforceManageUsers(); 11899 synchronized (getLockObject()) { 11900 final DevicePolicyData policy = getUserData(UserHandle.USER_SYSTEM); 11901 return policy.mDeviceProvisioningConfigApplied; 11902 } 11903 } 11904 11905 /** 11906 * Force update internal persistent state from Settings.Secure.USER_SETUP_COMPLETE. 11907 * 11908 * It's added for testing only. Please use this API carefully if it's used by other system app 11909 * and bare in mind Settings.Secure.USER_SETUP_COMPLETE can be modified by user and other system 11910 * apps. 11911 */ 11912 @Override 11913 public void forceUpdateUserSetupComplete() { 11914 enforceCanManageProfileAndDeviceOwners(); 11915 enforceCallerSystemUserHandle(); 11916 // no effect if it's called from user build 11917 if (!mInjector.isBuildDebuggable()) { 11918 return; 11919 } 11920 final int userId = UserHandle.USER_SYSTEM; 11921 boolean isUserCompleted = mInjector.settingsSecureGetIntForUser( 11922 Settings.Secure.USER_SETUP_COMPLETE, 0, userId) != 0; 11923 DevicePolicyData policy = getUserData(userId); 11924 policy.mUserSetupComplete = isUserCompleted; 11925 synchronized (getLockObject()) { 11926 saveSettingsLocked(userId); 11927 } 11928 } 11929 11930 // TODO(b/22388012): When backup is available for secondary users and profiles, consider 11931 // whether there are any privacy/security implications of enabling the backup service here 11932 // if there are other users or profiles unmanaged or managed by a different entity (i.e. not 11933 // affiliated). 11934 @Override 11935 public void setBackupServiceEnabled(ComponentName admin, boolean enabled) { 11936 if (!mHasFeature) { 11937 return; 11938 } 11939 Preconditions.checkNotNull(admin); 11940 synchronized (getLockObject()) { 11941 ActiveAdmin activeAdmin = getActiveAdminForCallerLocked( 11942 admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11943 if (!enabled) { 11944 activeAdmin.mandatoryBackupTransport = null; 11945 saveSettingsLocked(UserHandle.USER_SYSTEM); 11946 } 11947 } 11948 11949 final long ident = mInjector.binderClearCallingIdentity(); 11950 try { 11951 IBackupManager ibm = mInjector.getIBackupManager(); 11952 if (ibm != null) { 11953 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, enabled); 11954 } 11955 } catch (RemoteException e) { 11956 throw new IllegalStateException( 11957 "Failed " + (enabled ? "" : "de") + "activating backup service.", e); 11958 } finally { 11959 mInjector.binderRestoreCallingIdentity(ident); 11960 } 11961 } 11962 11963 @Override 11964 public boolean isBackupServiceEnabled(ComponentName admin) { 11965 Preconditions.checkNotNull(admin); 11966 if (!mHasFeature) { 11967 return true; 11968 } 11969 synchronized (getLockObject()) { 11970 try { 11971 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11972 IBackupManager ibm = mInjector.getIBackupManager(); 11973 return ibm != null && ibm.isBackupServiceActive(UserHandle.USER_SYSTEM); 11974 } catch (RemoteException e) { 11975 throw new IllegalStateException("Failed requesting backup service state.", e); 11976 } 11977 } 11978 } 11979 11980 @Override 11981 public boolean setMandatoryBackupTransport( 11982 ComponentName admin, 11983 ComponentName backupTransportComponent) { 11984 if (!mHasFeature) { 11985 return false; 11986 } 11987 Preconditions.checkNotNull(admin); 11988 synchronized (getLockObject()) { 11989 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 11990 } 11991 11992 final int callingUid = mInjector.binderGetCallingUid(); 11993 final AtomicBoolean success = new AtomicBoolean(false); 11994 final CountDownLatch countDownLatch = new CountDownLatch(1); 11995 final ISelectBackupTransportCallback selectBackupTransportCallbackInternal = 11996 new ISelectBackupTransportCallback.Stub() { 11997 public void onSuccess(String transportName) { 11998 saveMandatoryBackupTransport(admin, callingUid, backupTransportComponent); 11999 success.set(true); 12000 countDownLatch.countDown(); 12001 } 12002 12003 public void onFailure(int reason) { 12004 countDownLatch.countDown(); 12005 } 12006 }; 12007 final long identity = mInjector.binderClearCallingIdentity(); 12008 try { 12009 IBackupManager ibm = mInjector.getIBackupManager(); 12010 if (ibm != null && backupTransportComponent != null) { 12011 if (!ibm.isBackupServiceActive(UserHandle.USER_SYSTEM)) { 12012 ibm.setBackupServiceActive(UserHandle.USER_SYSTEM, true); 12013 } 12014 ibm.selectBackupTransportAsync( 12015 backupTransportComponent, selectBackupTransportCallbackInternal); 12016 countDownLatch.await(); 12017 if (success.get()) { 12018 ibm.setBackupEnabled(true); 12019 } 12020 } else if (backupTransportComponent == null) { 12021 saveMandatoryBackupTransport(admin, callingUid, backupTransportComponent); 12022 success.set(true); 12023 } 12024 } catch (RemoteException e) { 12025 throw new IllegalStateException("Failed to set mandatory backup transport.", e); 12026 } catch (InterruptedException e) { 12027 throw new IllegalStateException("Failed to set mandatory backup transport.", e); 12028 } finally { 12029 mInjector.binderRestoreCallingIdentity(identity); 12030 } 12031 return success.get(); 12032 } 12033 12034 private void saveMandatoryBackupTransport( 12035 ComponentName admin, int callingUid, ComponentName backupTransportComponent) { 12036 synchronized (getLockObject()) { 12037 ActiveAdmin activeAdmin = 12038 getActiveAdminWithPolicyForUidLocked( 12039 admin, 12040 DeviceAdminInfo.USES_POLICY_DEVICE_OWNER, 12041 callingUid); 12042 if (!Objects.equals(backupTransportComponent, 12043 activeAdmin.mandatoryBackupTransport)) { 12044 activeAdmin.mandatoryBackupTransport = 12045 backupTransportComponent; 12046 saveSettingsLocked(UserHandle.USER_SYSTEM); 12047 } 12048 } 12049 } 12050 12051 @Override 12052 public ComponentName getMandatoryBackupTransport() { 12053 if (!mHasFeature) { 12054 return null; 12055 } 12056 synchronized (getLockObject()) { 12057 ActiveAdmin activeAdmin = getDeviceOwnerAdminLocked(); 12058 return activeAdmin == null ? null : activeAdmin.mandatoryBackupTransport; 12059 } 12060 } 12061 12062 12063 @Override 12064 public boolean bindDeviceAdminServiceAsUser( 12065 @NonNull ComponentName admin, @NonNull IApplicationThread caller, 12066 @Nullable IBinder activtiyToken, @NonNull Intent serviceIntent, 12067 @NonNull IServiceConnection connection, int flags, @UserIdInt int targetUserId) { 12068 if (!mHasFeature) { 12069 return false; 12070 } 12071 Preconditions.checkNotNull(admin); 12072 Preconditions.checkNotNull(caller); 12073 Preconditions.checkNotNull(serviceIntent); 12074 Preconditions.checkArgument( 12075 serviceIntent.getComponent() != null || serviceIntent.getPackage() != null, 12076 "Service intent must be explicit (with a package name or component): " 12077 + serviceIntent); 12078 Preconditions.checkNotNull(connection); 12079 Preconditions.checkArgument(mInjector.userHandleGetCallingUserId() != targetUserId, 12080 "target user id must be different from the calling user id"); 12081 12082 if (!getBindDeviceAdminTargetUsers(admin).contains(UserHandle.of(targetUserId))) { 12083 throw new SecurityException("Not allowed to bind to target user id"); 12084 } 12085 12086 final String targetPackage; 12087 synchronized (getLockObject()) { 12088 targetPackage = getOwnerPackageNameForUserLocked(targetUserId); 12089 } 12090 12091 final long callingIdentity = mInjector.binderClearCallingIdentity(); 12092 try { 12093 // Validate and sanitize the incoming service intent. 12094 final Intent sanitizedIntent = 12095 createCrossUserServiceIntent(serviceIntent, targetPackage, targetUserId); 12096 if (sanitizedIntent == null) { 12097 // Fail, cannot lookup the target service. 12098 return false; 12099 } 12100 // Ask ActivityManager to bind it. Notice that we are binding the service with the 12101 // caller app instead of DevicePolicyManagerService. 12102 return mInjector.getIActivityManager().bindService( 12103 caller, activtiyToken, serviceIntent, 12104 serviceIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 12105 connection, flags, mContext.getOpPackageName(), 12106 targetUserId) != 0; 12107 } catch (RemoteException ex) { 12108 // Same process, should not happen. 12109 } finally { 12110 mInjector.binderRestoreCallingIdentity(callingIdentity); 12111 } 12112 12113 // Failed to bind. 12114 return false; 12115 } 12116 12117 @Override 12118 public @NonNull List<UserHandle> getBindDeviceAdminTargetUsers(@NonNull ComponentName admin) { 12119 if (!mHasFeature) { 12120 return Collections.emptyList(); 12121 } 12122 Preconditions.checkNotNull(admin); 12123 12124 synchronized (getLockObject()) { 12125 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12126 12127 final int callingUserId = mInjector.userHandleGetCallingUserId(); 12128 final long callingIdentity = mInjector.binderClearCallingIdentity(); 12129 try { 12130 ArrayList<UserHandle> targetUsers = new ArrayList<>(); 12131 if (!isDeviceOwner(admin, callingUserId)) { 12132 // Profile owners can only bind to the device owner. 12133 if (canUserBindToDeviceOwnerLocked(callingUserId)) { 12134 targetUsers.add(UserHandle.of(mOwners.getDeviceOwnerUserId())); 12135 } 12136 } else { 12137 // Caller is the device owner: Look for profile owners that it can bind to. 12138 final List<UserInfo> userInfos = mUserManager.getUsers(/*excludeDying=*/ true); 12139 for (int i = 0; i < userInfos.size(); i++) { 12140 final int userId = userInfos.get(i).id; 12141 if (userId != callingUserId && canUserBindToDeviceOwnerLocked(userId)) { 12142 targetUsers.add(UserHandle.of(userId)); 12143 } 12144 } 12145 } 12146 12147 return targetUsers; 12148 } finally { 12149 mInjector.binderRestoreCallingIdentity(callingIdentity); 12150 } 12151 } 12152 } 12153 12154 private boolean canUserBindToDeviceOwnerLocked(int userId) { 12155 // There has to be a device owner, under another user id. 12156 if (!mOwners.hasDeviceOwner() || userId == mOwners.getDeviceOwnerUserId()) { 12157 return false; 12158 } 12159 12160 // The user must have a profile owner that belongs to the same package as the device owner. 12161 if (!mOwners.hasProfileOwner(userId) || !TextUtils.equals( 12162 mOwners.getDeviceOwnerPackageName(), mOwners.getProfileOwnerPackage(userId))) { 12163 return false; 12164 } 12165 12166 // The user must be affiliated. 12167 return isUserAffiliatedWithDeviceLocked(userId); 12168 } 12169 12170 /** 12171 * Return true if a given user has any accounts that'll prevent installing a device or profile 12172 * owner {@code owner}. 12173 * - If the user has no accounts, then return false. 12174 * - Otherwise, if the owner is unknown (== null), or is not test-only, then return true. 12175 * - Otherwise, if there's any account that does not have ..._ALLOWED, or does have 12176 * ..._DISALLOWED, return true. 12177 * - Otherwise return false. 12178 * 12179 * If the caller is *not* ADB, it also returns true. The returned value shouldn't be used 12180 * when the caller is not ADB. 12181 * 12182 * DO NOT CALL IT WITH THE DPMS LOCK HELD. 12183 */ 12184 private boolean hasIncompatibleAccountsOrNonAdbNoLock( 12185 int userId, @Nullable ComponentName owner) { 12186 if (!isAdb()) { 12187 return true; 12188 } 12189 wtfIfInLock(); 12190 12191 final long token = mInjector.binderClearCallingIdentity(); 12192 try { 12193 final AccountManager am = AccountManager.get(mContext); 12194 final Account accounts[] = am.getAccountsAsUser(userId); 12195 if (accounts.length == 0) { 12196 return false; 12197 } 12198 synchronized (getLockObject()) { 12199 if (owner == null || !isAdminTestOnlyLocked(owner, userId)) { 12200 Log.w(LOG_TAG, 12201 "Non test-only owner can't be installed with existing accounts."); 12202 return true; 12203 } 12204 } 12205 12206 final String[] feature_allow = 12207 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_ALLOWED }; 12208 final String[] feature_disallow = 12209 { DevicePolicyManager.ACCOUNT_FEATURE_DEVICE_OR_PROFILE_OWNER_DISALLOWED }; 12210 12211 boolean compatible = true; 12212 for (Account account : accounts) { 12213 if (hasAccountFeatures(am, account, feature_disallow)) { 12214 Log.e(LOG_TAG, account + " has " + feature_disallow[0]); 12215 compatible = false; 12216 break; 12217 } 12218 if (!hasAccountFeatures(am, account, feature_allow)) { 12219 Log.e(LOG_TAG, account + " doesn't have " + feature_allow[0]); 12220 compatible = false; 12221 break; 12222 } 12223 } 12224 if (compatible) { 12225 Log.w(LOG_TAG, "All accounts are compatible"); 12226 } else { 12227 Log.e(LOG_TAG, "Found incompatible accounts"); 12228 } 12229 return !compatible; 12230 } finally { 12231 mInjector.binderRestoreCallingIdentity(token); 12232 } 12233 } 12234 12235 private boolean hasAccountFeatures(AccountManager am, Account account, String[] features) { 12236 try { 12237 return am.hasFeatures(account, features, null, null).getResult(); 12238 } catch (Exception e) { 12239 Log.w(LOG_TAG, "Failed to get account feature", e); 12240 return false; 12241 } 12242 } 12243 12244 private boolean isAdb() { 12245 final int callingUid = mInjector.binderGetCallingUid(); 12246 return callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID; 12247 } 12248 12249 @Override 12250 public void setNetworkLoggingEnabled(ComponentName admin, boolean enabled) { 12251 if (!mHasFeature) { 12252 return; 12253 } 12254 synchronized (getLockObject()) { 12255 Preconditions.checkNotNull(admin); 12256 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12257 12258 if (enabled == isNetworkLoggingEnabledInternalLocked()) { 12259 // already in the requested state 12260 return; 12261 } 12262 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 12263 deviceOwner.isNetworkLoggingEnabled = enabled; 12264 if (!enabled) { 12265 deviceOwner.numNetworkLoggingNotifications = 0; 12266 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 12267 } 12268 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 12269 12270 setNetworkLoggingActiveInternal(enabled); 12271 } 12272 } 12273 12274 private void setNetworkLoggingActiveInternal(boolean active) { 12275 synchronized (getLockObject()) { 12276 final long callingIdentity = mInjector.binderClearCallingIdentity(); 12277 try { 12278 if (active) { 12279 mNetworkLogger = new NetworkLogger(this, mInjector.getPackageManagerInternal()); 12280 if (!mNetworkLogger.startNetworkLogging()) { 12281 mNetworkLogger = null; 12282 Slog.wtf(LOG_TAG, "Network logging could not be started due to the logging" 12283 + " service not being available yet."); 12284 } 12285 maybePauseDeviceWideLoggingLocked(); 12286 sendNetworkLoggingNotificationLocked(); 12287 } else { 12288 if (mNetworkLogger != null && !mNetworkLogger.stopNetworkLogging()) { 12289 Slog.wtf(LOG_TAG, "Network logging could not be stopped due to the logging" 12290 + " service not being available yet."); 12291 } 12292 mNetworkLogger = null; 12293 mInjector.getNotificationManager().cancel(SystemMessage.NOTE_NETWORK_LOGGING); 12294 } 12295 } finally { 12296 mInjector.binderRestoreCallingIdentity(callingIdentity); 12297 } 12298 } 12299 } 12300 12301 /** Pauses security and network logging if there are unaffiliated users on the device */ 12302 private void maybePauseDeviceWideLoggingLocked() { 12303 if (!areAllUsersAffiliatedWithDeviceLocked()) { 12304 Slog.i(LOG_TAG, "There are unaffiliated users, security and network logging will be " 12305 + "paused if enabled."); 12306 mSecurityLogMonitor.pause(); 12307 if (mNetworkLogger != null) { 12308 mNetworkLogger.pause(); 12309 } 12310 } 12311 } 12312 12313 /** Resumes security and network logging (if they are enabled) if all users are affiliated */ 12314 private void maybeResumeDeviceWideLoggingLocked() { 12315 if (areAllUsersAffiliatedWithDeviceLocked()) { 12316 final long ident = mInjector.binderClearCallingIdentity(); 12317 try { 12318 mSecurityLogMonitor.resume(); 12319 if (mNetworkLogger != null) { 12320 mNetworkLogger.resume(); 12321 } 12322 } finally { 12323 mInjector.binderRestoreCallingIdentity(ident); 12324 } 12325 } 12326 } 12327 12328 /** Deletes any security and network logs that might have been collected so far */ 12329 private void discardDeviceWideLogsLocked() { 12330 mSecurityLogMonitor.discardLogs(); 12331 if (mNetworkLogger != null) { 12332 mNetworkLogger.discardLogs(); 12333 } 12334 // TODO: We should discard pre-boot security logs here too, as otherwise those 12335 // logs (which might contain data from the user just removed) will be 12336 // available after next boot. 12337 } 12338 12339 @Override 12340 public boolean isNetworkLoggingEnabled(ComponentName admin) { 12341 if (!mHasFeature) { 12342 return false; 12343 } 12344 synchronized (getLockObject()) { 12345 enforceDeviceOwnerOrManageUsers(); 12346 return isNetworkLoggingEnabledInternalLocked(); 12347 } 12348 } 12349 12350 private boolean isNetworkLoggingEnabledInternalLocked() { 12351 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 12352 return (deviceOwner != null) && deviceOwner.isNetworkLoggingEnabled; 12353 } 12354 12355 /* 12356 * A maximum of 1200 events are returned, and the total marshalled size is in the order of 12357 * 100kB, so returning a List instead of ParceledListSlice is acceptable. 12358 * Ideally this would be done with ParceledList, however it only supports homogeneous types. 12359 * 12360 * @see NetworkLoggingHandler#MAX_EVENTS_PER_BATCH 12361 */ 12362 @Override 12363 public List<NetworkEvent> retrieveNetworkLogs(ComponentName admin, long batchToken) { 12364 if (!mHasFeature) { 12365 return null; 12366 } 12367 Preconditions.checkNotNull(admin); 12368 ensureDeviceOwnerAndAllUsersAffiliated(admin); 12369 12370 synchronized (getLockObject()) { 12371 if (mNetworkLogger == null 12372 || !isNetworkLoggingEnabledInternalLocked()) { 12373 return null; 12374 } 12375 12376 final long currentTime = System.currentTimeMillis(); 12377 DevicePolicyData policyData = getUserData(UserHandle.USER_SYSTEM); 12378 if (currentTime > policyData.mLastNetworkLogsRetrievalTime) { 12379 policyData.mLastNetworkLogsRetrievalTime = currentTime; 12380 saveSettingsLocked(UserHandle.USER_SYSTEM); 12381 } 12382 return mNetworkLogger.retrieveLogs(batchToken); 12383 } 12384 } 12385 12386 private void sendNetworkLoggingNotificationLocked() { 12387 final ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 12388 if (deviceOwner == null || !deviceOwner.isNetworkLoggingEnabled) { 12389 return; 12390 } 12391 if (deviceOwner.numNetworkLoggingNotifications >= 12392 ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 12393 return; 12394 } 12395 final long now = System.currentTimeMillis(); 12396 if (now - deviceOwner.lastNetworkLoggingNotificationTimeMs < MS_PER_DAY) { 12397 return; 12398 } 12399 deviceOwner.numNetworkLoggingNotifications++; 12400 if (deviceOwner.numNetworkLoggingNotifications 12401 >= ActiveAdmin.DEF_MAXIMUM_NETWORK_LOGGING_NOTIFICATIONS_SHOWN) { 12402 deviceOwner.lastNetworkLoggingNotificationTimeMs = 0; 12403 } else { 12404 deviceOwner.lastNetworkLoggingNotificationTimeMs = now; 12405 } 12406 final Intent intent = new Intent(DevicePolicyManager.ACTION_SHOW_DEVICE_MONITORING_DIALOG); 12407 intent.setPackage("com.android.systemui"); 12408 final PendingIntent pendingIntent = PendingIntent.getBroadcastAsUser(mContext, 0, intent, 0, 12409 UserHandle.CURRENT); 12410 Notification notification = 12411 new Notification.Builder(mContext, SystemNotificationChannels.DEVICE_ADMIN) 12412 .setSmallIcon(R.drawable.ic_info_outline) 12413 .setContentTitle(mContext.getString(R.string.network_logging_notification_title)) 12414 .setContentText(mContext.getString(R.string.network_logging_notification_text)) 12415 .setTicker(mContext.getString(R.string.network_logging_notification_title)) 12416 .setShowWhen(true) 12417 .setContentIntent(pendingIntent) 12418 .setStyle(new Notification.BigTextStyle() 12419 .bigText(mContext.getString(R.string.network_logging_notification_text))) 12420 .build(); 12421 mInjector.getNotificationManager().notify(SystemMessage.NOTE_NETWORK_LOGGING, notification); 12422 saveSettingsLocked(mOwners.getDeviceOwnerUserId()); 12423 } 12424 12425 /** 12426 * Return the package name of owner in a given user. 12427 */ 12428 private String getOwnerPackageNameForUserLocked(int userId) { 12429 return mOwners.getDeviceOwnerUserId() == userId 12430 ? mOwners.getDeviceOwnerPackageName() 12431 : mOwners.getProfileOwnerPackage(userId); 12432 } 12433 12434 /** 12435 * @param rawIntent Original service intent specified by caller. It must be explicit. 12436 * @param expectedPackageName The expected package name of the resolved service. 12437 * @return Intent that have component explicitly set. {@code null} if no service is resolved 12438 * with the given intent. 12439 * @throws SecurityException if the intent is resolved to an invalid service. 12440 */ 12441 private Intent createCrossUserServiceIntent( 12442 @NonNull Intent rawIntent, @NonNull String expectedPackageName, 12443 @UserIdInt int targetUserId) throws RemoteException, SecurityException { 12444 ResolveInfo info = mIPackageManager.resolveService( 12445 rawIntent, 12446 rawIntent.resolveTypeIfNeeded(mContext.getContentResolver()), 12447 0, // flags 12448 targetUserId); 12449 if (info == null || info.serviceInfo == null) { 12450 Log.e(LOG_TAG, "Fail to look up the service: " + rawIntent 12451 + " or user " + targetUserId + " is not running"); 12452 return null; 12453 } 12454 if (!expectedPackageName.equals(info.serviceInfo.packageName)) { 12455 throw new SecurityException("Only allow to bind service in " + expectedPackageName); 12456 } 12457 // STOPSHIP(b/37624960): Remove info.serviceInfo.exported before release. 12458 if (info.serviceInfo.exported && !BIND_DEVICE_ADMIN.equals(info.serviceInfo.permission)) { 12459 throw new SecurityException( 12460 "Service must be protected by BIND_DEVICE_ADMIN permission"); 12461 } 12462 // It is the system server to bind the service, it would be extremely dangerous if it 12463 // can be exploited to bind any service. Set the component explicitly to make sure we 12464 // do not bind anything accidentally. 12465 rawIntent.setComponent(info.serviceInfo.getComponentName()); 12466 return rawIntent; 12467 } 12468 12469 @Override 12470 public long getLastSecurityLogRetrievalTime() { 12471 enforceDeviceOwnerOrManageUsers(); 12472 return getUserData(UserHandle.USER_SYSTEM).mLastSecurityLogRetrievalTime; 12473 } 12474 12475 @Override 12476 public long getLastBugReportRequestTime() { 12477 enforceDeviceOwnerOrManageUsers(); 12478 return getUserData(UserHandle.USER_SYSTEM).mLastBugReportRequestTime; 12479 } 12480 12481 @Override 12482 public long getLastNetworkLogRetrievalTime() { 12483 enforceDeviceOwnerOrManageUsers(); 12484 return getUserData(UserHandle.USER_SYSTEM).mLastNetworkLogsRetrievalTime; 12485 } 12486 12487 @Override 12488 public boolean setResetPasswordToken(ComponentName admin, byte[] token) { 12489 if (!mHasFeature) { 12490 return false; 12491 } 12492 if (token == null || token.length < 32) { 12493 throw new IllegalArgumentException("token must be at least 32-byte long"); 12494 } 12495 synchronized (getLockObject()) { 12496 final int userHandle = mInjector.userHandleGetCallingUserId(); 12497 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12498 12499 DevicePolicyData policy = getUserData(userHandle); 12500 long ident = mInjector.binderClearCallingIdentity(); 12501 try { 12502 if (policy.mPasswordTokenHandle != 0) { 12503 mLockPatternUtils.removeEscrowToken(policy.mPasswordTokenHandle, userHandle); 12504 } 12505 12506 policy.mPasswordTokenHandle = mLockPatternUtils.addEscrowToken(token, userHandle); 12507 saveSettingsLocked(userHandle); 12508 return policy.mPasswordTokenHandle != 0; 12509 } finally { 12510 mInjector.binderRestoreCallingIdentity(ident); 12511 } 12512 } 12513 } 12514 12515 @Override 12516 public boolean clearResetPasswordToken(ComponentName admin) { 12517 if (!mHasFeature) { 12518 return false; 12519 } 12520 synchronized (getLockObject()) { 12521 final int userHandle = mInjector.userHandleGetCallingUserId(); 12522 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12523 12524 DevicePolicyData policy = getUserData(userHandle); 12525 if (policy.mPasswordTokenHandle != 0) { 12526 long ident = mInjector.binderClearCallingIdentity(); 12527 try { 12528 boolean result = mLockPatternUtils.removeEscrowToken( 12529 policy.mPasswordTokenHandle, userHandle); 12530 policy.mPasswordTokenHandle = 0; 12531 saveSettingsLocked(userHandle); 12532 return result; 12533 } finally { 12534 mInjector.binderRestoreCallingIdentity(ident); 12535 } 12536 } 12537 } 12538 return false; 12539 } 12540 12541 @Override 12542 public boolean isResetPasswordTokenActive(ComponentName admin) { 12543 synchronized (getLockObject()) { 12544 final int userHandle = mInjector.userHandleGetCallingUserId(); 12545 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12546 12547 DevicePolicyData policy = getUserData(userHandle); 12548 if (policy.mPasswordTokenHandle != 0) { 12549 long ident = mInjector.binderClearCallingIdentity(); 12550 try { 12551 return mLockPatternUtils.isEscrowTokenActive(policy.mPasswordTokenHandle, 12552 userHandle); 12553 } finally { 12554 mInjector.binderRestoreCallingIdentity(ident); 12555 } 12556 } 12557 } 12558 return false; 12559 } 12560 12561 @Override 12562 public boolean resetPasswordWithToken(ComponentName admin, String passwordOrNull, byte[] token, 12563 int flags) { 12564 Preconditions.checkNotNull(token); 12565 synchronized (getLockObject()) { 12566 final int userHandle = mInjector.userHandleGetCallingUserId(); 12567 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12568 12569 DevicePolicyData policy = getUserData(userHandle); 12570 if (policy.mPasswordTokenHandle != 0) { 12571 final String password = passwordOrNull != null ? passwordOrNull : ""; 12572 return resetPasswordInternal(password, policy.mPasswordTokenHandle, token, 12573 flags, mInjector.binderGetCallingUid(), userHandle); 12574 } else { 12575 Slog.w(LOG_TAG, "No saved token handle"); 12576 } 12577 } 12578 return false; 12579 } 12580 12581 @Override 12582 public boolean isCurrentInputMethodSetByOwner() { 12583 enforceProfileOwnerOrSystemUser(); 12584 return getUserData(mInjector.userHandleGetCallingUserId()).mCurrentInputMethodSet; 12585 } 12586 12587 @Override 12588 public StringParceledListSlice getOwnerInstalledCaCerts(@NonNull UserHandle user) { 12589 final int userId = user.getIdentifier(); 12590 enforceProfileOwnerOrFullCrossUsersPermission(userId); 12591 synchronized (getLockObject()) { 12592 return new StringParceledListSlice( 12593 new ArrayList<>(getUserData(userId).mOwnerInstalledCaCerts)); 12594 } 12595 } 12596 12597 @Override 12598 public void clearApplicationUserData(ComponentName admin, String packageName, 12599 IPackageDataObserver callback) { 12600 Preconditions.checkNotNull(admin, "ComponentName is null"); 12601 Preconditions.checkNotNull(packageName, "packageName is null"); 12602 Preconditions.checkNotNull(callback, "callback is null"); 12603 synchronized (getLockObject()) { 12604 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12605 } 12606 final int userId = UserHandle.getCallingUserId(); 12607 12608 long ident = mInjector.binderClearCallingIdentity(); 12609 try { 12610 ActivityManager.getService().clearApplicationUserData(packageName, false, callback, 12611 userId); 12612 } catch(RemoteException re) { 12613 // Same process, should not happen. 12614 } catch (SecurityException se) { 12615 // This can happen e.g. for device admin packages, do not throw out the exception, 12616 // because callers have no means to know beforehand for which packages this might 12617 // happen. If so, we send back that removal failed. 12618 Slog.w(LOG_TAG, "Not allowed to clear application user data for package " + packageName, 12619 se); 12620 try { 12621 callback.onRemoveCompleted(packageName, false); 12622 } catch (RemoteException re) { 12623 // Caller is no longer available, ignore 12624 } 12625 } finally { 12626 mInjector.binderRestoreCallingIdentity(ident); 12627 } 12628 } 12629 12630 @Override 12631 public void setLogoutEnabled(ComponentName admin, boolean enabled) { 12632 if (!mHasFeature) { 12633 return; 12634 } 12635 Preconditions.checkNotNull(admin); 12636 12637 synchronized (getLockObject()) { 12638 ActiveAdmin deviceOwner = 12639 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12640 12641 if (deviceOwner.isLogoutEnabled == enabled) { 12642 // already in the requested state 12643 return; 12644 } 12645 deviceOwner.isLogoutEnabled = enabled; 12646 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 12647 } 12648 } 12649 12650 @Override 12651 public boolean isLogoutEnabled() { 12652 if (!mHasFeature) { 12653 return false; 12654 } 12655 synchronized (getLockObject()) { 12656 ActiveAdmin deviceOwner = getDeviceOwnerAdminLocked(); 12657 return (deviceOwner != null) && deviceOwner.isLogoutEnabled; 12658 } 12659 } 12660 12661 @Override 12662 public List<String> getDisallowedSystemApps(ComponentName admin, int userId, 12663 String provisioningAction) throws RemoteException { 12664 enforceCanManageProfileAndDeviceOwners(); 12665 return new ArrayList<>( 12666 mOverlayPackagesProvider.getNonRequiredApps(admin, userId, provisioningAction)); 12667 } 12668 12669 @Override 12670 public void transferOwnership(@NonNull ComponentName admin, @NonNull ComponentName target, 12671 @Nullable PersistableBundle bundle) { 12672 if (!mHasFeature) { 12673 return; 12674 } 12675 12676 Preconditions.checkNotNull(admin, "Admin cannot be null."); 12677 Preconditions.checkNotNull(target, "Target cannot be null."); 12678 12679 enforceProfileOrDeviceOwner(admin); 12680 12681 if (admin.equals(target)) { 12682 throw new IllegalArgumentException("Provided administrator and target are " 12683 + "the same object."); 12684 } 12685 12686 if (admin.getPackageName().equals(target.getPackageName())) { 12687 throw new IllegalArgumentException("Provided administrator and target have " 12688 + "the same package name."); 12689 } 12690 12691 final int callingUserId = mInjector.userHandleGetCallingUserId(); 12692 final DevicePolicyData policy = getUserData(callingUserId); 12693 final DeviceAdminInfo incomingDeviceInfo = findAdmin(target, callingUserId, 12694 /* throwForMissingPermission= */ true); 12695 checkActiveAdminPrecondition(target, incomingDeviceInfo, policy); 12696 if (!incomingDeviceInfo.supportsTransferOwnership()) { 12697 throw new IllegalArgumentException("Provided target does not support " 12698 + "ownership transfer."); 12699 } 12700 12701 final long id = mInjector.binderClearCallingIdentity(); 12702 try { 12703 synchronized (getLockObject()) { 12704 /* 12705 * We must ensure the whole process is atomic to prevent the device from ending up 12706 * in an invalid state (e.g. no active admin). This could happen if the device 12707 * is rebooted or work mode is turned off mid-transfer. 12708 * In order to guarantee atomicity, we: 12709 * 12710 * 1. Save an atomic journal file describing the transfer process 12711 * 2. Perform the transfer itself 12712 * 3. Delete the journal file 12713 * 12714 * That way if the journal file exists on device boot, we know that the transfer 12715 * must be reverted back to the original administrator. This logic is implemented in 12716 * revertTransferOwnershipIfNecessaryLocked. 12717 * */ 12718 if (bundle == null) { 12719 bundle = new PersistableBundle(); 12720 } 12721 if (isProfileOwner(admin, callingUserId)) { 12722 prepareTransfer(admin, target, bundle, callingUserId, 12723 ADMIN_TYPE_PROFILE_OWNER); 12724 transferProfileOwnershipLocked(admin, target, callingUserId); 12725 sendProfileOwnerCommand(DeviceAdminReceiver.ACTION_TRANSFER_OWNERSHIP_COMPLETE, 12726 getTransferOwnershipAdminExtras(bundle), callingUserId); 12727 postTransfer(DevicePolicyManager.ACTION_PROFILE_OWNER_CHANGED, callingUserId); 12728 if (isUserAffiliatedWithDeviceLocked(callingUserId)) { 12729 notifyAffiliatedProfileTransferOwnershipComplete(callingUserId); 12730 } 12731 } else if (isDeviceOwner(admin, callingUserId)) { 12732 prepareTransfer(admin, target, bundle, callingUserId, 12733 ADMIN_TYPE_DEVICE_OWNER); 12734 transferDeviceOwnershipLocked(admin, target, callingUserId); 12735 sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_TRANSFER_OWNERSHIP_COMPLETE, 12736 getTransferOwnershipAdminExtras(bundle)); 12737 postTransfer(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED, callingUserId); 12738 } 12739 } 12740 } finally { 12741 mInjector.binderRestoreCallingIdentity(id); 12742 } 12743 } 12744 12745 private void prepareTransfer(ComponentName admin, ComponentName target, 12746 PersistableBundle bundle, int callingUserId, String adminType) { 12747 saveTransferOwnershipBundleLocked(bundle, callingUserId); 12748 mTransferOwnershipMetadataManager.saveMetadataFile( 12749 new TransferOwnershipMetadataManager.Metadata(admin, target, 12750 callingUserId, adminType)); 12751 } 12752 12753 private void postTransfer(String broadcast, int callingUserId) { 12754 deleteTransferOwnershipMetadataFileLocked(); 12755 sendOwnerChangedBroadcast(broadcast, callingUserId); 12756 } 12757 12758 private void notifyAffiliatedProfileTransferOwnershipComplete(int callingUserId) { 12759 final Bundle extras = new Bundle(); 12760 extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(callingUserId)); 12761 sendDeviceOwnerCommand( 12762 DeviceAdminReceiver.ACTION_AFFILIATED_PROFILE_TRANSFER_OWNERSHIP_COMPLETE, extras); 12763 } 12764 12765 /** 12766 * Transfers the profile owner for user with id profileOwnerUserId from admin to target. 12767 */ 12768 private void transferProfileOwnershipLocked(ComponentName admin, ComponentName target, 12769 int profileOwnerUserId) { 12770 transferActiveAdminUncheckedLocked(target, admin, profileOwnerUserId); 12771 mOwners.transferProfileOwner(target, profileOwnerUserId); 12772 Slog.i(LOG_TAG, "Profile owner set: " + target + " on user " + profileOwnerUserId); 12773 mOwners.writeProfileOwner(profileOwnerUserId); 12774 mDeviceAdminServiceController.startServiceForOwner( 12775 target.getPackageName(), profileOwnerUserId, "transfer-profile-owner"); 12776 } 12777 12778 /** 12779 * Transfers the device owner for user with id userId from admin to target. 12780 */ 12781 private void transferDeviceOwnershipLocked(ComponentName admin, ComponentName target, int userId) { 12782 transferActiveAdminUncheckedLocked(target, admin, userId); 12783 mOwners.transferDeviceOwnership(target); 12784 Slog.i(LOG_TAG, "Device owner set: " + target + " on user " + userId); 12785 mOwners.writeDeviceOwner(); 12786 mDeviceAdminServiceController.startServiceForOwner( 12787 target.getPackageName(), userId, "transfer-device-owner"); 12788 } 12789 12790 private Bundle getTransferOwnershipAdminExtras(PersistableBundle bundle) { 12791 Bundle extras = new Bundle(); 12792 if (bundle != null) { 12793 extras.putParcelable(EXTRA_TRANSFER_OWNERSHIP_ADMIN_EXTRAS_BUNDLE, bundle); 12794 } 12795 return extras; 12796 } 12797 12798 @Override 12799 public void setStartUserSessionMessage( 12800 ComponentName admin, CharSequence startUserSessionMessage) { 12801 if (!mHasFeature) { 12802 return; 12803 } 12804 Preconditions.checkNotNull(admin); 12805 12806 final String startUserSessionMessageString = 12807 startUserSessionMessage != null ? startUserSessionMessage.toString() : null; 12808 12809 synchronized (getLockObject()) { 12810 final ActiveAdmin deviceOwner = 12811 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12812 12813 if (TextUtils.equals(deviceOwner.startUserSessionMessage, startUserSessionMessage)) { 12814 return; 12815 } 12816 deviceOwner.startUserSessionMessage = startUserSessionMessageString; 12817 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 12818 } 12819 12820 mInjector.getActivityManagerInternal() 12821 .setSwitchingFromSystemUserMessage(startUserSessionMessageString); 12822 } 12823 12824 @Override 12825 public void setEndUserSessionMessage(ComponentName admin, CharSequence endUserSessionMessage) { 12826 if (!mHasFeature) { 12827 return; 12828 } 12829 Preconditions.checkNotNull(admin); 12830 12831 final String endUserSessionMessageString = 12832 endUserSessionMessage != null ? endUserSessionMessage.toString() : null; 12833 12834 synchronized (getLockObject()) { 12835 final ActiveAdmin deviceOwner = 12836 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12837 12838 if (TextUtils.equals(deviceOwner.endUserSessionMessage, endUserSessionMessage)) { 12839 return; 12840 } 12841 deviceOwner.endUserSessionMessage = endUserSessionMessageString; 12842 saveSettingsLocked(mInjector.userHandleGetCallingUserId()); 12843 } 12844 12845 mInjector.getActivityManagerInternal() 12846 .setSwitchingToSystemUserMessage(endUserSessionMessageString); 12847 } 12848 12849 @Override 12850 public String getStartUserSessionMessage(ComponentName admin) { 12851 if (!mHasFeature) { 12852 return null; 12853 } 12854 Preconditions.checkNotNull(admin); 12855 12856 synchronized (getLockObject()) { 12857 final ActiveAdmin deviceOwner = 12858 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12859 return deviceOwner.startUserSessionMessage; 12860 } 12861 } 12862 12863 @Override 12864 public String getEndUserSessionMessage(ComponentName admin) { 12865 if (!mHasFeature) { 12866 return null; 12867 } 12868 Preconditions.checkNotNull(admin); 12869 12870 synchronized (getLockObject()) { 12871 final ActiveAdmin deviceOwner = 12872 getActiveAdminForCallerLocked(admin, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12873 return deviceOwner.endUserSessionMessage; 12874 } 12875 } 12876 12877 private void deleteTransferOwnershipMetadataFileLocked() { 12878 mTransferOwnershipMetadataManager.deleteMetadataFile(); 12879 } 12880 12881 @Override 12882 @Nullable 12883 public PersistableBundle getTransferOwnershipBundle() { 12884 synchronized (getLockObject()) { 12885 final int callingUserId = mInjector.userHandleGetCallingUserId(); 12886 getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER); 12887 final File bundleFile = new File( 12888 mInjector.environmentGetUserSystemDirectory(callingUserId), 12889 TRANSFER_OWNERSHIP_PARAMETERS_XML); 12890 if (!bundleFile.exists()) { 12891 return null; 12892 } 12893 try (FileInputStream stream = new FileInputStream(bundleFile)) { 12894 XmlPullParser parser = Xml.newPullParser(); 12895 parser.setInput(stream, null); 12896 parser.next(); 12897 return PersistableBundle.restoreFromXml(parser); 12898 } catch (IOException | XmlPullParserException | IllegalArgumentException e) { 12899 Slog.e(LOG_TAG, "Caught exception while trying to load the " 12900 + "owner transfer parameters from file " + bundleFile, e); 12901 return null; 12902 } 12903 } 12904 } 12905 12906 @Override 12907 public int addOverrideApn(@NonNull ComponentName who, @NonNull ApnSetting apnSetting) { 12908 if (!mHasFeature) { 12909 return -1; 12910 } 12911 Preconditions.checkNotNull(who, "ComponentName is null in addOverrideApn"); 12912 Preconditions.checkNotNull(apnSetting, "ApnSetting is null in addOverrideApn"); 12913 synchronized (getLockObject()) { 12914 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12915 } 12916 12917 int operatedId = -1; 12918 Uri resultUri; 12919 final long id = mInjector.binderClearCallingIdentity(); 12920 try { 12921 resultUri = mContext.getContentResolver().insert(DPC_URI, apnSetting.toContentValues()); 12922 } finally { 12923 mInjector.binderRestoreCallingIdentity(id); 12924 } 12925 if (resultUri != null) { 12926 try { 12927 operatedId = Integer.parseInt(resultUri.getLastPathSegment()); 12928 } catch (NumberFormatException e) { 12929 Slog.e(LOG_TAG, "Failed to parse inserted override APN id.", e); 12930 } 12931 } 12932 12933 return operatedId; 12934 } 12935 12936 @Override 12937 public boolean updateOverrideApn(@NonNull ComponentName who, int apnId, 12938 @NonNull ApnSetting apnSetting) { 12939 if (!mHasFeature) { 12940 return false; 12941 } 12942 Preconditions.checkNotNull(who, "ComponentName is null in updateOverrideApn"); 12943 Preconditions.checkNotNull(apnSetting, "ApnSetting is null in updateOverrideApn"); 12944 synchronized (getLockObject()) { 12945 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12946 } 12947 12948 if (apnId < 0) { 12949 return false; 12950 } 12951 final long id = mInjector.binderClearCallingIdentity(); 12952 try { 12953 return mContext.getContentResolver().update( 12954 Uri.withAppendedPath(DPC_URI, Integer.toString(apnId)), 12955 apnSetting.toContentValues(), null, null) > 0; 12956 } finally { 12957 mInjector.binderRestoreCallingIdentity(id); 12958 } 12959 } 12960 12961 @Override 12962 public boolean removeOverrideApn(@NonNull ComponentName who, int apnId) { 12963 if (!mHasFeature) { 12964 return false; 12965 } 12966 Preconditions.checkNotNull(who, "ComponentName is null in removeOverrideApn"); 12967 synchronized (getLockObject()) { 12968 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12969 } 12970 12971 return removeOverrideApnUnchecked(apnId); 12972 } 12973 12974 private boolean removeOverrideApnUnchecked(int apnId) { 12975 if(apnId < 0) { 12976 return false; 12977 } 12978 int numDeleted = 0; 12979 final long id = mInjector.binderClearCallingIdentity(); 12980 try { 12981 numDeleted = mContext.getContentResolver().delete( 12982 Uri.withAppendedPath(DPC_URI, Integer.toString(apnId)), null, null); 12983 } finally { 12984 mInjector.binderRestoreCallingIdentity(id); 12985 } 12986 return numDeleted > 0; 12987 } 12988 12989 @Override 12990 public List<ApnSetting> getOverrideApns(@NonNull ComponentName who) { 12991 if (!mHasFeature) { 12992 return Collections.emptyList(); 12993 } 12994 Preconditions.checkNotNull(who, "ComponentName is null in getOverrideApns"); 12995 synchronized (getLockObject()) { 12996 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 12997 } 12998 12999 return getOverrideApnsUnchecked(); 13000 } 13001 13002 private List<ApnSetting> getOverrideApnsUnchecked() { 13003 final Cursor cursor; 13004 final long id = mInjector.binderClearCallingIdentity(); 13005 try { 13006 cursor = mContext.getContentResolver().query(DPC_URI, null, null, null, null); 13007 } finally { 13008 mInjector.binderRestoreCallingIdentity(id); 13009 } 13010 13011 if (cursor == null) { 13012 return Collections.emptyList(); 13013 } 13014 try { 13015 List<ApnSetting> apnList = new ArrayList<ApnSetting>(); 13016 cursor.moveToPosition(-1); 13017 while (cursor.moveToNext()) { 13018 ApnSetting apn = ApnSetting.makeApnSetting(cursor); 13019 apnList.add(apn); 13020 } 13021 return apnList; 13022 } finally { 13023 cursor.close(); 13024 } 13025 } 13026 13027 @Override 13028 public void setOverrideApnsEnabled(@NonNull ComponentName who, boolean enabled) { 13029 if (!mHasFeature) { 13030 return; 13031 } 13032 Preconditions.checkNotNull(who, "ComponentName is null in setOverrideApnEnabled"); 13033 synchronized (getLockObject()) { 13034 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 13035 } 13036 13037 setOverrideApnsEnabledUnchecked(enabled); 13038 } 13039 13040 private void setOverrideApnsEnabledUnchecked(boolean enabled) { 13041 ContentValues value = new ContentValues(); 13042 value.put(ENFORCE_KEY, enabled); 13043 final long id = mInjector.binderClearCallingIdentity(); 13044 try { 13045 mContext.getContentResolver().update( 13046 ENFORCE_MANAGED_URI, value, null, null); 13047 } finally { 13048 mInjector.binderRestoreCallingIdentity(id); 13049 } 13050 } 13051 13052 @Override 13053 public boolean isOverrideApnEnabled(@NonNull ComponentName who) { 13054 if (!mHasFeature) { 13055 return false; 13056 } 13057 Preconditions.checkNotNull(who, "ComponentName is null in isOverrideApnEnabled"); 13058 synchronized (getLockObject()) { 13059 getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER); 13060 } 13061 13062 Cursor enforceCursor; 13063 final long id = mInjector.binderClearCallingIdentity(); 13064 try { 13065 enforceCursor = mContext.getContentResolver().query( 13066 ENFORCE_MANAGED_URI, null, null, null, null); 13067 } finally { 13068 mInjector.binderRestoreCallingIdentity(id); 13069 } 13070 13071 if (enforceCursor == null) { 13072 return false; 13073 } 13074 try { 13075 if (enforceCursor.moveToFirst()) { 13076 return enforceCursor.getInt(enforceCursor.getColumnIndex(ENFORCE_KEY)) == 1; 13077 } 13078 } catch (IllegalArgumentException e) { 13079 Slog.e(LOG_TAG, "Cursor returned from ENFORCE_MANAGED_URI doesn't contain " 13080 + "correct info.", e); 13081 } finally { 13082 enforceCursor.close(); 13083 } 13084 return false; 13085 } 13086 13087 @VisibleForTesting 13088 void saveTransferOwnershipBundleLocked(PersistableBundle bundle, int userId) { 13089 final File parametersFile = new File( 13090 mInjector.environmentGetUserSystemDirectory(userId), 13091 TRANSFER_OWNERSHIP_PARAMETERS_XML); 13092 final AtomicFile atomicFile = new AtomicFile(parametersFile); 13093 FileOutputStream stream = null; 13094 try { 13095 stream = atomicFile.startWrite(); 13096 final XmlSerializer serializer = new FastXmlSerializer(); 13097 serializer.setOutput(stream, StandardCharsets.UTF_8.name()); 13098 serializer.startDocument(null, true); 13099 serializer.startTag(null, TAG_TRANSFER_OWNERSHIP_BUNDLE); 13100 bundle.saveToXml(serializer); 13101 serializer.endTag(null, TAG_TRANSFER_OWNERSHIP_BUNDLE); 13102 serializer.endDocument(); 13103 atomicFile.finishWrite(stream); 13104 } catch (IOException | XmlPullParserException e) { 13105 Slog.e(LOG_TAG, "Caught exception while trying to save the " 13106 + "owner transfer parameters to file " + parametersFile, e); 13107 parametersFile.delete(); 13108 atomicFile.failWrite(stream); 13109 } 13110 } 13111 13112 void deleteTransferOwnershipBundleLocked(int userId) { 13113 final File parametersFile = new File(mInjector.environmentGetUserSystemDirectory(userId), 13114 TRANSFER_OWNERSHIP_PARAMETERS_XML); 13115 parametersFile.delete(); 13116 } 13117 13118 private void maybeLogPasswordComplexitySet(ComponentName who, int userId, boolean parent, 13119 PasswordMetrics metrics) { 13120 if (SecurityLog.isLoggingEnabled()) { 13121 final int affectedUserId = parent ? getProfileParentId(userId) : userId; 13122 SecurityLog.writeEvent(SecurityLog.TAG_PASSWORD_COMPLEXITY_SET, who.getPackageName(), 13123 userId, affectedUserId, metrics.length, metrics.quality, metrics.letters, 13124 metrics.nonLetter, metrics.numeric, metrics.upperCase, metrics.lowerCase, 13125 metrics.symbols); 13126 } 13127 } 13128 13129 private static String getManagedProvisioningPackage(Context context) { 13130 return context.getResources().getString(R.string.config_managed_provisioning_package); 13131 } 13132 } 13133
